From 094535c010320967639e8e86f974d878e80baa72 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?J=C3=B6rg=20Frings-F=C3=BCrst?= Date: Fri, 1 May 2015 16:13:57 +0200 Subject: Imported Upstream version 1.7.0 --- Jambase | 88 +- Jamfile | 14 +- Jamtop | 132 +- Readme.txt | 42 +- adirs | 10 +- ccast/Jamfile | 34 + ccast/License.txt | 662 + ccast/Readme.txt | 12 + ccast/afiles | 54 + ccast/axTLS/Jamfile | 42 + ccast/axTLS/Readme.txt | 7 + ccast/axTLS/aes.c | 457 + ccast/axTLS/asn1.c | 566 + ccast/axTLS/bigint.c | 1512 + ccast/axTLS/bigint.h | 99 + ccast/axTLS/bigint_impl.h | 131 + ccast/axTLS/cert.h | 43 + ccast/axTLS/config.h | 41 + ccast/axTLS/crypto.h | 230 + ccast/axTLS/crypto_misc.c | 367 + ccast/axTLS/crypto_misc.h | 172 + ccast/axTLS/gen_cert.c | 368 + ccast/axTLS/hmac.c | 105 + ccast/axTLS/loader.c | 483 + ccast/axTLS/md2.c | 162 + ccast/axTLS/md5.c | 294 + ccast/axTLS/openssl.c | 323 + ccast/axTLS/os_int.h | 74 + ccast/axTLS/os_port.c | 160 + ccast/axTLS/os_port.h | 194 + ccast/axTLS/p12.c 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zlib/compress.c create mode 100644 zlib/configure create mode 100644 zlib/crc32.c create mode 100644 zlib/crc32.h create mode 100644 zlib/deflate.c create mode 100644 zlib/deflate.h create mode 100644 zlib/example.c create mode 100644 zlib/gzclose.c create mode 100644 zlib/gzguts.h create mode 100644 zlib/gzlib.c create mode 100644 zlib/gzread.c create mode 100644 zlib/gzwrite.c create mode 100644 zlib/infback.c create mode 100644 zlib/inffast.c create mode 100644 zlib/inffast.h create mode 100644 zlib/inffixed.h create mode 100644 zlib/inflate.c create mode 100644 zlib/inflate.h create mode 100644 zlib/inftrees.c create mode 100644 zlib/inftrees.h create mode 100644 zlib/libzlib.lib create mode 100644 zlib/make_vms.com create mode 100644 zlib/minigzip.c create mode 100644 zlib/treebuild.xml create mode 100644 zlib/trees.c create mode 100644 zlib/trees.h create mode 100644 zlib/uncompr.c create mode 100644 zlib/zconf.h create mode 100644 zlib/zconf.h.cmakein create mode 100644 zlib/zconf.h.in create mode 100644 zlib/zlib.3 create mode 100644 zlib/zlib.3.pdf create mode 100644 zlib/zlib.h create mode 100644 zlib/zlib.map create mode 100644 zlib/zlib.pc.in create mode 100644 zlib/zlib125.zip create mode 100644 zlib/zlib2ansi create mode 100644 zlib/zutil.c create mode 100644 zlib/zutil.h diff --git a/Jambase b/Jambase index d96c40b..7398443 100644 --- a/Jambase +++ b/Jambase @@ -445,7 +445,7 @@ if $(NT) # WINLIBS ?= -lwinspool -lwinmm -lshell32 -lcomctl32 -lctl3d32 # -lodbc32 -ladvapi32 -lodbc32 -lwsock32 -lopengl32 # -lglu32 -lshlwapi -lsetupapi ; - WINLIBS ?= -lshlwapi -lsetupapi -lole32 -lws2_32 -lpsapi ; + WINLIBS ?= -lshlwapi -lsetupapi -lole32 -lws2_32 -lpsapi -lversion ; GUILIBS ?= -lgdi32 -lmscms ; LINK ?= $(TPFX)g++ ; # In case we link to C++ files @@ -510,22 +510,82 @@ if $(NT) DEFFLAG ?= /D ; UNDEFFLAG ?= "/u _" ; } + else if $(TARGET_ARCH) + { + # Intel C++ compiler (ICL) + + # No IA64 dir + local I ; I = "" ; + + AR ?= lib /NOLOGO ; + AS ?= masm386 ; + CC ?= icl /nologo ; + CCFLAGS ?= /DNT /MD ; # DLL compatible build by default + + C++ ?= $(CC) ; + C++FLAGS ?= $(CCFLAGS) /GX ; # GX enables syncronous exception handling + LINK ?= xilink /nologo ; + LINKOUTFLAG ?= /out: ; + LINKFLAGS ?= ; # iclvars.bat [arch] sets this up + + SHLINKFLAGS ?= ; + + STDLIBS ?= + oldnames.lib + kernel32.lib + advapi32.lib + user32.lib + mscms.lib + gdi32.lib + shlwapi.lib + shell32.lib + setupapi.lib + ole32.lib + oleaut32.lib + ws2_32.lib + Wbemuuid.lib + ; + SHSTDLIBS ?= $(STDLIBS) ; + LINKFLAG ?= ; + STDHDRS ?= $(ICPP_COMPILER14)\\Include ; + DEFFLAG ?= /D ; + UNDEFFLAG ?= /U ; + CCOPTFLAG ?= /O3 ; + + if $(MSVCVER) = 6 { + CCDEBUGFLAG ?= /Od /Z7 ; # Include debugging into in each object + CCPROFFLAG ?= /Od /Z7 ; + LINKDEBUGFLAG ?= /DEBUGTYPE:BOTH /DEBUG /PDB:NONE ; + } else { + CCDEBUGFLAG ?= /Od /Zi ; # /Zi creates debugging database + CCPROFFLAG ?= /Od /Zi ; + LINKDEBUGFLAG ?= /DEBUG ; + } + LINKPROFFLAG ?= /PROFILE $(LINKDEBUGFLAG) ; + LINKOPTFLAG ?= /OPT:REF ; + LINKSTRIPFLAG ?= ; + YACC ?= bison -y ; + YACCGEN ?= .c ; + YACCFILES ?= y.tab ; + YACCFLAGS ?= -d ; + } else if $(MSVCNT) || $(MSVCDIR) || $(MSVCDir) || $(VCINSTALLDIR) { - # Visual C++ 8.0/9.0/10.0 uses VCINSTALLDIR + # Visual C++ 8.0/9.0/10.0/11.0/12.0 uses VCINSTALLDIR # We assume VC++ Express + XP32 SDK has been setup - # Visual C++ 6.0 uses MSVCDIR - if $(VCINSTALLDIR) { MSVCNT ?= $(VCINSTALLDIR) ; } else if $(MSVCDir) { MSVCNT ?= $(MSVCDir) ; - } else { + } else { # Visual C++ 6.0 uses MSVCDIR MSVCNT ?= $(MSVCDIR) ; } - if [ MATCH 11\\.(.*) : $(VisualStudioVersion) ] { + if [ MATCH 12\\.(.*) : $(VisualStudioVersion) ] { + ECHO "Compiler is VC++12 32 bit" ; + MSVCVER = 12 ; + } else if [ MATCH 11\\.(.*) : $(VisualStudioVersion) ] { ECHO "Compiler is VC++11 32 bit" ; MSVCVER = 11 ; } else if [ MATCH (.*)VC\\+\\+10(.*) : $(MSVCNT) ] { @@ -585,6 +645,7 @@ if $(NT) oleaut32.lib ws2_32.lib Wbemuuid.lib + Version.lib ; SHSTDLIBS ?= $(STDLIBS) ; LINKFLAG ?= ; @@ -916,9 +977,14 @@ else if $(UNIX) } # Make things work on 64 bit Linux - # Note that HOSTTYPE needs to be exported by the shell! + # Because HOSTTYPE is not normally exported, check the uname() result + if ! $(HOSTTYPE) { + HOSTTYPE = $(JAMUNAME[1]) ; + } + if $(HOSTTYPE) = x86_64 - || $(HOSTTYPE) = x86_64-linux { + || $(HOSTTYPE) = x86_64-linux + || $(HOSTTYPE) = amd64 { ECHO "We're on a 64 bit host" ; HOST64 = true ; CCFLAGS += -m64 ; @@ -946,7 +1012,7 @@ else if $(UNIX) CRELIB ?= ; DOT ?= . ; DOTDOT ?= .. ; - EXEMODE ?= 711 ; + EXEMODE ?= 755 ; FILEMODE ?= 644 ; FORTRAN ?= f77 ; FORTRANFLAGS ?= ; @@ -3474,7 +3540,7 @@ rule MkDir_ # Object object : sources : flags : defines : hdrpaths rule Object { -#Echo "Object got " $(<) "and" $(>) "' flags '" $(3) "' defs '" $(4) "' hds '" $(5) "'" ; + #Echo "Object got " $(<) "and" $(>) "' flags '" $(3) "' defs '" $(4) "' hds '" $(5) "'" ; # Normalize target names and set Grist LOCATE and SOURCE local _t = [ NormDstTargets $(<[1]:S=$(SUFOBJ)) ] ; @@ -3726,7 +3792,7 @@ rule RmTemps_ rule Setuid { local _t = [ NormPaths $(>:S=$(SUFEXE)) ] ; - MODE on $(_t) = 4711 ; + MODE on $(_t) = 4755 ; } # Shell diff --git a/Jamfile b/Jamfile index 5cb66cb..b1e9be1 100644 --- a/Jamfile +++ b/Jamfile @@ -19,6 +19,8 @@ SubInclude plot ; SubInclude icc ; #SubInclude icc4 ; SubInclude cgats ; +SubInclude xml ; +SubInclude yajl ; SubInclude rspl ; SubInclude gamut ; SubInclude xicc ; @@ -30,13 +32,23 @@ SubInclude profile ; SubInclude link ; SubInclude tweak ; SubInclude render ; +SubInclude namedc ; +SubInclude ccast ; if ! $(HAVE_TIFF) { SubInclude tiff ; } if ! $(HAVE_JPEG) { - SubInclude jpg ; + SubInclude jpeg ; +} + +if ! $(HAVE_ZLIB) { + SubInclude zlib ; +} + +if ! $(HAVE_PNG) { + SubInclude png ; } if $(USE_LIBUSB) = true { diff --git a/Jamtop b/Jamtop index 3ba306b..3a5d80c 100644 --- a/Jamtop +++ b/Jamtop @@ -4,7 +4,6 @@ Echo "Argyll Jamrules has been read" ; - # Default install base directory is same directory as Jamtop, # but can be overriden in the command line. DESTDIR ?= [ NormPaths . ] ; @@ -21,6 +20,10 @@ Echo "DESTDIR = '$(DESTDIR)', PREFIX = '$(PREFIX)', REFSUBDIR = '$(REFSUBDIR)'" ANCHORED_PATH_VARS = DESTDIR ; +# Should we also allow CFLAGS, CXXFLAGS, CPPFLAGS & LDFLAGS env. variables +# to have effect ? + + # Tell standalone libraries that they are part of Argyll: DEFINES += ARGYLLCMS ; @@ -33,25 +36,31 @@ USE_FAST_SERIAL = true ; # (Implicit in USE_SERIAL too) # enable USB instruments & support USE_USB = true ; -# enable dummy Demo Instrument, if code is available +# enable dummy Demo Instrument (only if code is available) USE_DEMOINST = true ; -# Use libusb (deprecated) +# Use ArgyllCMS version of libusb (deprecated - don't use) USE_LIBUSB = false ; -# Use libusb1 rather than libusb0 & libusb0-win32 (deprecated) -USE_LIBUSB1 = true ; +if $(USE_LIBUSB) = true { + + # Use libusb1 rather than libusb0 & libusb0-win32 (deprecated) + USE_LIBUSB1 = true ; -# Make the USB V1 library static -LIBUSB_IS_DLL = false ; + # Make the USB V1 library static + LIBUSB_IS_DLL = false ; -# Always use DLL for MSWin, because driver install expects it (.inf) -if $(NT) { - LIBUSB_IS_DLL = true ; + # Always use DLL for MSWin, because driver install expects it (.inf) + if $(NT) { + LIBUSB_IS_DLL = true ; + } + + # Set the libubs1 library name. + LIBUSB1NAME = libusb-1.0A ; } -# Set the libubs1 library name. -LIBUSB1NAME = libusb-1.0A ; +# For testing CCast +DEFINES += CCTEST_PATTERN ; # Information for compiling and linking GUI programs @@ -74,25 +83,25 @@ if $(UNIX) { } if $(HOST64) { - if [ GLOB /usr/X11R6/lib : libX11.so ] { + if [ GLOB /usr/X11R6/lib : libX11.so libX11.a ] { LibWinD = /usr/X11R6/lib ; - } else if [ GLOB /usr/lib/x86_64-linux-gnu : libX11.so ] { + } else if [ GLOB /usr/lib/x86_64-linux-gnu : libX11.so libX11.a ] { LibWinD = /usr/lib/x86_64-linux-gnu ; - } else if [ GLOB /usr/lib64 : libX11.so ] { + } else if [ GLOB /usr/lib64 : libX11.so libX11.a ] { LibWinD = /usr/lib64 ; - } else if [ GLOB /usr/lib : libX11.so ] { + } else if [ GLOB /usr/lib : libX11.so libX11.a ] { LibWinD = /usr/lib ; - } else if [ GLOB /usr/local/lib : libX11.so ] { + } else if [ GLOB /usr/local/lib : libX11.so libX11.a ] { LibWinD = /usr/local/lib ; } else { ECHO Unable to locate the 64 bit X11 library files ; } } else { - if [ GLOB /usr/X11R6/lib : libX11.so ] { + if [ GLOB /usr/X11R6/lib : libX11.so libX11.a ] { LibWinD = /usr/X11R6/lib ; - } else if [ GLOB /usr/lib : libX11.so ] { + } else if [ GLOB /usr/lib : libX11.so libX11.a ] { LibWinD = /usr/lib ; - } else if [ GLOB /usr/local/lib : libX11.so ] { + } else if [ GLOB /usr/local/lib : libX11.so libX11.a ] { LibWinD = /usr/local/lib ; } else { ECHO Unable to locate the 32 bit X11 library files ; @@ -100,6 +109,8 @@ if $(UNIX) { } if $(OS) = FREEBSD { LINKFLAGS += -L$(LibWinD) -g -lrt -lX11 -lXext -lXxf86vm -lXinerama -lXrandr -lXau -lXdmcp -lXss -lusb ; + } else if $(OS) = OPENBSD { + LINKFLAGS += -L$(LibWinD) -g -lX11 -lXext -lXxf86vm -lXinerama -lXrandr -lXau -lXdmcp -lXss -L/usr/local/lib ; } else { LINKFLAGS += -L$(LibWinD) -ldl -lrt -lX11 -lXext -lXxf86vm -lXinerama -lXrandr -lXau -lXdmcp -lXss ; } @@ -107,53 +118,52 @@ if $(UNIX) { } } -# See if we have a system TIFF library. -if ! $(BUILTIN_TIFF) && $(UNIX) { - if [ GLOB /usr/include : tiffio.h ] || [ GLOB /usr/local/include : tiffio.h ] { - if [ GLOB /usr/lib : libtiff.so ] || [ GLOB /usr/lib : libtiff.a ] - || [ GLOB /usr/lib64 : libtiff.so ] || [ GLOB /usr/lib64 : libtiff.a ] - || [ GLOB /usr/lib/x86_64-linux-gnu : libtiff.so ] - || [ GLOB /usr/lib/x86_64-linux-gnu : libtiff.a ] - || [ GLOB /usr/local/lib : libtiff.so ] || [ GLOB /usr/local/lib : libtiff.a ] { - echo "Using system TIFF library" ; - TIFFLIB = ; - TIFFINC = ; - LINKFLAGS += $(LINKFLAG)tiff ; - HAVE_TIFF = true ; - } - } -} +# Standard system library support: -# If nothing else, use Argyll supplied TIFF library -if ! $(HAVE_TIFF) || $(BUILTIN_TIFF) { - echo "Using Argyll TIFF library" ; - TIFFLIB = ../tiff/libtiff.lib ; - TIFFINC = ../tiff ; -} +# Check rule. $(<) is library name, $(>) is optional directory name +rule CheckForLibrary { + UCASE = $(<:U) ; + lcase = $(<:L) ; + libname = $(lcase) ; + + if $(>) { + libname = $(>) ; + } -# See if we have a system JPEG library. -if ! $(BUILTIN_JPEG) && $(UNIX) { - if [ GLOB /usr/include : jpeglib.h ] || [ GLOB /usr/local/include : jpeglib.h ] { - if [ GLOB /usr/lib : libjpeg.so ] || [ GLOB /usr/lib : libjpeg.a ] - || [ GLOB /usr/lib64 : libjpeg.so ] || [ GLOB /usr/lib64 : libjpeg.a ] - || [ GLOB /usr/lib/x86_64-linux-gnu : libjpeg.so ] - || [ GLOB /usr/lib/x86_64-linux-gnu : libjpeg.a ] - || [ GLOB /usr/local/lib : libjpeg.so ] || [ GLOB /usr/local/lib : libjpeg.a ] { - echo "Using system JPEG library" ; - JPEGLIB = ; - JPEGINC = ; - LINKFLAGS += $(LINKFLAG)jpeg ; - HAVE_JPEG = true ; + if ! $(BUILTIN_$(UCASE)) && $(UNIX) { + if [ GLOB /usr/include : $(lcase).h $(lcase)lib.h ] + || [ GLOB /usr/local/include : $(lcase).h $(lcase)lib.h ] + || [ GLOB /usr/include/x86_64-linux-gnu : $(lcase).h $(lcase)lib.h ] + || [ GLOB /usr/include/i386-linux-gnu : $(lcase).h $(lcase)lib.h ] { + if [ GLOB /usr/lib : lib$(lcase).so ] || [ GLOB /usr/lib : lib$(lcase).a ] + || [ GLOB /usr/local/lib : lib$(lcase).so ] || [ GLOB /usr/local/lib : lib$(lcase).a ] + || [ GLOB /usr/lib64 : lib$(lcase).so ] || [ GLOB /usr/lib64 : lib$(lcase).a ] + || [ GLOB /usr/lib/x86_64-linux-gnu : lib$(lcase).so ] + || [ GLOB /usr/lib/x86_64-linux-gnu : lib$(lcase).a ] + || [ GLOB /usr/lib/i386-linux-gnu : lib$(lcase).so ] + || [ GLOB /usr/lib/i386-linux-gnu : lib$(lcase).a ] { + echo "Using system $(UCASE) library" ; + $(UCASE)LIB = ; + $(UCASE)INC = ; + LINKFLAGS += $(LINKFLAG)$(lcase) ; + HAVE_$(UCASE) = true ; + } } } + + # If nothing else, use Argyll supplied $(UCASE) library + if ! $(HAVE_$(UCASE)) || $(BUILTIN_$(UCASE)) { + echo "Using Argyll $(UCASE) library" ; + $(UCASE)LIB = ../$(libname)/lib$(lcase).lib ; + $(UCASE)INC = ../$(libname) ; + } } -# If nothing else, use Argyll supplied JPEG library -if ! $(HAVE_JPEG) || $(BUILTIN_JPEG) { - echo "Using Argyll JPEG library" ; - JPEGLIB = ../jpg/libjpeg.lib ; - JPEGINC = ../jpg ; -} +# See if we have a system TIFF, JPEG, PNG or ZLIB library. +CheckForLibrary "TIFF" ; +CheckForLibrary "JPEG" ; +CheckForLibrary "PNG" ; +CheckForLibrary "Z" : "zlib" ; # testing #DSTDIR = var ; diff --git a/Readme.txt b/Readme.txt index f111a1d..2fc1b4b 100644 --- a/Readme.txt +++ b/Readme.txt @@ -1,30 +1,32 @@ -Argyll CMS README file - Version 1.6.3 +Argyll CMS README file - Version 1.7.0 -------------------------------------- -Date: 26th January 2014 +Date: 1st May 2015 Author: Graeme Gill Introduction -ArgyllCMS is an ICC compatible color management system, available as Open Source. -It supports accurate ICC profile creation for scanners, cameras and film -recorders, and calibration and profiling of displays and RGB & CMYK printers. -Device Link can be created with a wide variety of advanced options, including -specialized Video calibration standards and 3dLuts. Spectral sample data is -supported, allowing a selection of illuminants observer types, and paper -fluorescent whitener additive compensation. Profiles can also incorporate source -specific gamut mappings for perceptual and saturation intents. Gamut mapping and -profile linking uses the CIECAM02 appearance model, a unique gamut mapping algorithm, -and a wide selection of rendering intents. It also includes code for -the fastest portable 8 bit raster color conversion engine available anywhere, as -well as support for fast, fully accurate 16 bit conversion. Device color gamuts -can also be viewed and compared using a VRML viewer. Comprehensive documentation -is provided for each major tool, and a general guide to using the tools for typical -color management tasks is also available. A mailing list provides support for -more advanced usage. - -This is Version 1.6.3, a bug fix update to V1.6.2 released on 18th November 2013. +ArgyllCMS is an ICC compatible color management system, available +as Open Source. It supports accurate ICC profile creation for scanners, +cameras and film recorders, and calibration and profiling of displays +and RGB & CMYK printers. Device Link can be created with a wide variety +of advanced options, including specialized Video calibration standards +and 3dLuts. Spectral sample data is supported, allowing a selection of +illuminants observer types, and paper fluorescent whitener additive +compensation. Profiles can also incorporate source specific gamut +mappings for perceptual and saturation intents. Gamut mapping and +profile linking uses the CIECAM02 appearance model, a unique gamut +mapping algorithm, and a wide selection of rendering intents. It also +includes code for the fastest portable 8 bit raster color conversion +engine available anywhere, as well as support for fast, fully accurate +16 bit conversion. Device color gamuts can also be viewed and compared +with a modern Web browser using X3DOM . Comprehensive documentation is +provided for each major tool, and a general guide to using the tools for +typical color management tasks is also available. A mailing list provides +support for more advanced usage. + +This is Version 1.7.0, a feature and bug fix update to V1.6.3. The first public release of icclib was in November 1998, and of Argyll was in October 2000. Code development commenced in 1995. See Changes Summary for an overview of changes since the last release. Changes diff --git a/adirs b/adirs index 6816f91..9c15248 100644 --- a/adirs +++ b/adirs @@ -17,10 +17,16 @@ tweak render ucmm jcnf -jcnf/yajl +yajl lib h ref doc +zlib tiff -jpg +jpeg +png +xml +yajl +namedc +ccast diff --git a/ccast/Jamfile b/ccast/Jamfile new file mode 100644 index 0000000..ff216ff --- /dev/null +++ b/ccast/Jamfile @@ -0,0 +1,34 @@ + +# Jamfile for ccast library + +#PREF_CCFLAGS = $(CCOPTFLAG) ; # Turn optimisation on +PREF_CCFLAGS = $(CCDEBUGFLAG) ; # Debugging flags +PREF_LINKFLAGS = $(LINKDEBUGFLAG) ; + +if $(NT) { + DEFINES += WIN32 ; +} + +SubInclude axTLS ; + +HDRS = ../h ../numlib ../spectro axTLS chan ../yajl ; + +# We create the channel protocol buffers implementation files thus: +# /src/protobuf_c/protobuf.exe --c_out=chan cast_channel.proto + +CHAN_SRC = + chan/cast_channel.pb-c.c + chan/protobuf-c.c + ; + +# ccast library +Library libccast : ccmdns.c ccpacket.c ccmes.c ccast.c $(CHAN_SRC) dpat.c ; + +LINKLIBS = ./libccast axTLS/libaxtls ../yajl/libyajl ../numlib/libnum ../spectro/libconv ; + +# Test harness +#Main cctest : cctest.c ; +Main filt : filt.c ; + +MainVariant dpat : dpat.c : : STANDALONE_TEST ; + diff --git a/ccast/License.txt b/ccast/License.txt new file mode 100644 index 0000000..a871fcf --- /dev/null +++ b/ccast/License.txt @@ -0,0 +1,662 @@ + GNU AFFERO GENERAL PUBLIC LICENSE + Version 3, 19 November 2007 + + Copyright (C) 2007 Free Software Foundation, Inc. + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + + Preamble + + The GNU Affero General Public License is a free, copyleft license for +software and other kinds of works, specifically designed to ensure +cooperation with the community in the case of network server software. + + The licenses for most software and other practical works are designed +to take away your freedom to share and change the works. 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IN NO EVENT SHALL THE COPYRIGHT OWNER OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, + * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF + * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING + * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +/** + * AES implementation - this is a small code version. There are much faster + * versions around but they are much larger in size (i.e. they use large + * submix tables). + */ + +#include +#include "os_port.h" +#include "crypto.h" + +/* all commented out in skeleton mode */ +#ifndef CONFIG_SSL_SKELETON_MODE + +#define rot1(x) (((x) << 24) | ((x) >> 8)) +#define rot2(x) (((x) << 16) | ((x) >> 16)) +#define rot3(x) (((x) << 8) | ((x) >> 24)) + +/* + * This cute trick does 4 'mul by two' at once. Stolen from + * Dr B. R. Gladman but I'm sure the u-(u>>7) is + * a standard graphics trick + * The key to this is that we need to xor with 0x1b if the top bit is set. + * a 1xxx xxxx 0xxx 0xxx First we mask the 7bit, + * b 1000 0000 0000 0000 then we shift right by 7 putting the 7bit in 0bit, + * c 0000 0001 0000 0000 we then subtract (c) from (b) + * d 0111 1111 0000 0000 and now we and with our mask + * e 0001 1011 0000 0000 + */ +#define mt 0x80808080 +#define ml 0x7f7f7f7f +#define mh 0xfefefefe +#define mm 0x1b1b1b1b +#define mul2(x,t) ((t)=((x)&mt), \ + ((((x)+(x))&mh)^(((t)-((t)>>7))&mm))) + +#define inv_mix_col(x,f2,f4,f8,f9) (\ + (f2)=mul2(x,f2), \ + (f4)=mul2(f2,f4), \ + (f8)=mul2(f4,f8), \ + (f9)=(x)^(f8), \ + (f8)=((f2)^(f4)^(f8)), \ + (f2)^=(f9), \ + (f4)^=(f9), \ + (f8)^=rot3(f2), \ + (f8)^=rot2(f4), \ + (f8)^rot1(f9)) + +/* + * AES S-box + */ +static const uint8_t aes_sbox[256] = +{ + 0x63,0x7C,0x77,0x7B,0xF2,0x6B,0x6F,0xC5, + 0x30,0x01,0x67,0x2B,0xFE,0xD7,0xAB,0x76, + 0xCA,0x82,0xC9,0x7D,0xFA,0x59,0x47,0xF0, + 0xAD,0xD4,0xA2,0xAF,0x9C,0xA4,0x72,0xC0, + 0xB7,0xFD,0x93,0x26,0x36,0x3F,0xF7,0xCC, + 0x34,0xA5,0xE5,0xF1,0x71,0xD8,0x31,0x15, + 0x04,0xC7,0x23,0xC3,0x18,0x96,0x05,0x9A, + 0x07,0x12,0x80,0xE2,0xEB,0x27,0xB2,0x75, + 0x09,0x83,0x2C,0x1A,0x1B,0x6E,0x5A,0xA0, + 0x52,0x3B,0xD6,0xB3,0x29,0xE3,0x2F,0x84, + 0x53,0xD1,0x00,0xED,0x20,0xFC,0xB1,0x5B, + 0x6A,0xCB,0xBE,0x39,0x4A,0x4C,0x58,0xCF, + 0xD0,0xEF,0xAA,0xFB,0x43,0x4D,0x33,0x85, + 0x45,0xF9,0x02,0x7F,0x50,0x3C,0x9F,0xA8, + 0x51,0xA3,0x40,0x8F,0x92,0x9D,0x38,0xF5, + 0xBC,0xB6,0xDA,0x21,0x10,0xFF,0xF3,0xD2, + 0xCD,0x0C,0x13,0xEC,0x5F,0x97,0x44,0x17, + 0xC4,0xA7,0x7E,0x3D,0x64,0x5D,0x19,0x73, + 0x60,0x81,0x4F,0xDC,0x22,0x2A,0x90,0x88, + 0x46,0xEE,0xB8,0x14,0xDE,0x5E,0x0B,0xDB, + 0xE0,0x32,0x3A,0x0A,0x49,0x06,0x24,0x5C, + 0xC2,0xD3,0xAC,0x62,0x91,0x95,0xE4,0x79, + 0xE7,0xC8,0x37,0x6D,0x8D,0xD5,0x4E,0xA9, + 0x6C,0x56,0xF4,0xEA,0x65,0x7A,0xAE,0x08, + 0xBA,0x78,0x25,0x2E,0x1C,0xA6,0xB4,0xC6, + 0xE8,0xDD,0x74,0x1F,0x4B,0xBD,0x8B,0x8A, + 0x70,0x3E,0xB5,0x66,0x48,0x03,0xF6,0x0E, + 0x61,0x35,0x57,0xB9,0x86,0xC1,0x1D,0x9E, + 0xE1,0xF8,0x98,0x11,0x69,0xD9,0x8E,0x94, + 0x9B,0x1E,0x87,0xE9,0xCE,0x55,0x28,0xDF, + 0x8C,0xA1,0x89,0x0D,0xBF,0xE6,0x42,0x68, + 0x41,0x99,0x2D,0x0F,0xB0,0x54,0xBB,0x16, +}; + +/* + * AES is-box + */ +static const uint8_t aes_isbox[256] = +{ + 0x52,0x09,0x6a,0xd5,0x30,0x36,0xa5,0x38, + 0xbf,0x40,0xa3,0x9e,0x81,0xf3,0xd7,0xfb, + 0x7c,0xe3,0x39,0x82,0x9b,0x2f,0xff,0x87, + 0x34,0x8e,0x43,0x44,0xc4,0xde,0xe9,0xcb, + 0x54,0x7b,0x94,0x32,0xa6,0xc2,0x23,0x3d, + 0xee,0x4c,0x95,0x0b,0x42,0xfa,0xc3,0x4e, + 0x08,0x2e,0xa1,0x66,0x28,0xd9,0x24,0xb2, + 0x76,0x5b,0xa2,0x49,0x6d,0x8b,0xd1,0x25, + 0x72,0xf8,0xf6,0x64,0x86,0x68,0x98,0x16, + 0xd4,0xa4,0x5c,0xcc,0x5d,0x65,0xb6,0x92, + 0x6c,0x70,0x48,0x50,0xfd,0xed,0xb9,0xda, + 0x5e,0x15,0x46,0x57,0xa7,0x8d,0x9d,0x84, + 0x90,0xd8,0xab,0x00,0x8c,0xbc,0xd3,0x0a, + 0xf7,0xe4,0x58,0x05,0xb8,0xb3,0x45,0x06, + 0xd0,0x2c,0x1e,0x8f,0xca,0x3f,0x0f,0x02, + 0xc1,0xaf,0xbd,0x03,0x01,0x13,0x8a,0x6b, + 0x3a,0x91,0x11,0x41,0x4f,0x67,0xdc,0xea, + 0x97,0xf2,0xcf,0xce,0xf0,0xb4,0xe6,0x73, + 0x96,0xac,0x74,0x22,0xe7,0xad,0x35,0x85, + 0xe2,0xf9,0x37,0xe8,0x1c,0x75,0xdf,0x6e, + 0x47,0xf1,0x1a,0x71,0x1d,0x29,0xc5,0x89, + 0x6f,0xb7,0x62,0x0e,0xaa,0x18,0xbe,0x1b, + 0xfc,0x56,0x3e,0x4b,0xc6,0xd2,0x79,0x20, + 0x9a,0xdb,0xc0,0xfe,0x78,0xcd,0x5a,0xf4, + 0x1f,0xdd,0xa8,0x33,0x88,0x07,0xc7,0x31, + 0xb1,0x12,0x10,0x59,0x27,0x80,0xec,0x5f, + 0x60,0x51,0x7f,0xa9,0x19,0xb5,0x4a,0x0d, + 0x2d,0xe5,0x7a,0x9f,0x93,0xc9,0x9c,0xef, + 0xa0,0xe0,0x3b,0x4d,0xae,0x2a,0xf5,0xb0, + 0xc8,0xeb,0xbb,0x3c,0x83,0x53,0x99,0x61, + 0x17,0x2b,0x04,0x7e,0xba,0x77,0xd6,0x26, + 0xe1,0x69,0x14,0x63,0x55,0x21,0x0c,0x7d +}; + +static const unsigned char Rcon[30]= +{ + 0x01,0x02,0x04,0x08,0x10,0x20,0x40,0x80, + 0x1b,0x36,0x6c,0xd8,0xab,0x4d,0x9a,0x2f, + 0x5e,0xbc,0x63,0xc6,0x97,0x35,0x6a,0xd4, + 0xb3,0x7d,0xfa,0xef,0xc5,0x91, +}; + +/* ----- static functions ----- */ +static void AES_encrypt(const AES_CTX *ctx, uint32_t *data); +static void AES_decrypt(const AES_CTX *ctx, uint32_t *data); + +/* Perform doubling in Galois Field GF(2^8) using the irreducible polynomial + x^8+x^4+x^3+x+1 */ +static unsigned char AES_xtime(uint32_t x) +{ + return (x&0x80) ? (x<<1)^0x1b : x<<1; +} + +/** + * Set up AES with the key/iv and cipher size. + */ +void AES_set_key(AES_CTX *ctx, const uint8_t *key, + const uint8_t *iv, AES_MODE mode) +{ + int i, ii; + uint32_t *W, tmp, tmp2; + const unsigned char *ip; + int words; + + switch (mode) + { + case AES_MODE_128: + i = 10; + words = 4; + break; + + case AES_MODE_256: + i = 14; + words = 8; + break; + + default: /* fail silently */ + return; + } + + ctx->rounds = i; + ctx->key_size = words; + W = ctx->ks; + for (i = 0; i < words; i+=2) + { + W[i+0]= ((uint32_t)key[ 0]<<24)| + ((uint32_t)key[ 1]<<16)| + ((uint32_t)key[ 2]<< 8)| + ((uint32_t)key[ 3] ); + W[i+1]= ((uint32_t)key[ 4]<<24)| + ((uint32_t)key[ 5]<<16)| + ((uint32_t)key[ 6]<< 8)| + ((uint32_t)key[ 7] ); + key += 8; + } + + ip = Rcon; + ii = 4 * (ctx->rounds+1); + for (i = words; i> 8)&0xff]<<16; + tmp2|=(uint32_t)aes_sbox[(tmp>>16)&0xff]<<24; + tmp2|=(uint32_t)aes_sbox[(tmp>>24) ]; + tmp=tmp2^(((unsigned int)*ip)<<24); + ip++; + } + + if ((words == 8) && ((i % words) == 4)) + { + tmp2 =(uint32_t)aes_sbox[(tmp )&0xff] ; + tmp2|=(uint32_t)aes_sbox[(tmp>> 8)&0xff]<< 8; + tmp2|=(uint32_t)aes_sbox[(tmp>>16)&0xff]<<16; + tmp2|=(uint32_t)aes_sbox[(tmp>>24) ]<<24; + tmp=tmp2; + } + + W[i]=W[i-words]^tmp; + } + + /* copy the iv across */ + memcpy(ctx->iv, iv, 16); +} + +/** + * Change a key for decryption. + */ +void AES_convert_key(AES_CTX *ctx) +{ + int i; + uint32_t *k,w,t1,t2,t3,t4; + + k = ctx->ks; + k += 4; + + for (i= ctx->rounds*4; i > 4; i--) + { + w= *k; + w = inv_mix_col(w,t1,t2,t3,t4); + *k++ =w; + } +} + +/** + * Encrypt a byte sequence (with a block size 16) using the AES cipher. + */ +void AES_cbc_encrypt(AES_CTX *ctx, const uint8_t *msg, uint8_t *out, int length) +{ + int i; + uint32_t tin[4], tout[4], iv[4]; + + memcpy(iv, ctx->iv, AES_IV_SIZE); + for (i = 0; i < 4; i++) + tout[i] = ntohl(iv[i]); + + for (length -= AES_BLOCKSIZE; length >= 0; length -= AES_BLOCKSIZE) + { + uint32_t msg_32[4]; + uint32_t out_32[4]; + memcpy(msg_32, msg, AES_BLOCKSIZE); + msg += AES_BLOCKSIZE; + + for (i = 0; i < 4; i++) + tin[i] = ntohl(msg_32[i])^tout[i]; + + AES_encrypt(ctx, tin); + + for (i = 0; i < 4; i++) + { + tout[i] = tin[i]; + out_32[i] = htonl(tout[i]); + } + + memcpy(out, out_32, AES_BLOCKSIZE); + out += AES_BLOCKSIZE; + } + + for (i = 0; i < 4; i++) + iv[i] = htonl(tout[i]); + memcpy(ctx->iv, iv, AES_IV_SIZE); +} + +/** + * Decrypt a byte sequence (with a block size 16) using the AES cipher. + */ +void AES_cbc_decrypt(AES_CTX *ctx, const uint8_t *msg, uint8_t *out, int length) +{ + int i; + uint32_t tin[4], xor[4], tout[4], data[4], iv[4]; + + memcpy(iv, ctx->iv, AES_IV_SIZE); + for (i = 0; i < 4; i++) + xor[i] = ntohl(iv[i]); + + for (length -= 16; length >= 0; length -= 16) + { + uint32_t msg_32[4]; + uint32_t out_32[4]; + memcpy(msg_32, msg, AES_BLOCKSIZE); + msg += AES_BLOCKSIZE; + + for (i = 0; i < 4; i++) + { + tin[i] = ntohl(msg_32[i]); + data[i] = tin[i]; + } + + AES_decrypt(ctx, data); + + for (i = 0; i < 4; i++) + { + tout[i] = data[i]^xor[i]; + xor[i] = tin[i]; + out_32[i] = htonl(tout[i]); + } + + memcpy(out, out_32, AES_BLOCKSIZE); + out += AES_BLOCKSIZE; + } + + for (i = 0; i < 4; i++) + iv[i] = htonl(xor[i]); + memcpy(ctx->iv, iv, AES_IV_SIZE); +} + +/** + * Encrypt a single block (16 bytes) of data + */ +static void AES_encrypt(const AES_CTX *ctx, uint32_t *data) +{ + /* To make this code smaller, generate the sbox entries on the fly. + * This will have a really heavy effect upon performance. + */ + uint32_t tmp[4]; + uint32_t tmp1, old_a0, a0, a1, a2, a3, row; + int curr_rnd; + int rounds = ctx->rounds; + const uint32_t *k = ctx->ks; + + /* Pre-round key addition */ + for (row = 0; row < 4; row++) + data[row] ^= *(k++); + + /* Encrypt one block. */ + for (curr_rnd = 0; curr_rnd < rounds; curr_rnd++) + { + /* Perform ByteSub and ShiftRow operations together */ + for (row = 0; row < 4; row++) + { + a0 = (uint32_t)aes_sbox[(data[row%4]>>24)&0xFF]; + a1 = (uint32_t)aes_sbox[(data[(row+1)%4]>>16)&0xFF]; + a2 = (uint32_t)aes_sbox[(data[(row+2)%4]>>8)&0xFF]; + a3 = (uint32_t)aes_sbox[(data[(row+3)%4])&0xFF]; + + /* Perform MixColumn iff not last round */ + if (curr_rnd < (rounds - 1)) + { + tmp1 = a0 ^ a1 ^ a2 ^ a3; + old_a0 = a0; + a0 ^= tmp1 ^ AES_xtime(a0 ^ a1); + a1 ^= tmp1 ^ AES_xtime(a1 ^ a2); + a2 ^= tmp1 ^ AES_xtime(a2 ^ a3); + a3 ^= tmp1 ^ AES_xtime(a3 ^ old_a0); + } + + tmp[row] = ((a0 << 24) | (a1 << 16) | (a2 << 8) | a3); + } + + /* KeyAddition - note that it is vital that this loop is separate from + the MixColumn operation, which must be atomic...*/ + for (row = 0; row < 4; row++) + data[row] = tmp[row] ^ *(k++); + } +} + +/** + * Decrypt a single block (16 bytes) of data + */ +static void AES_decrypt(const AES_CTX *ctx, uint32_t *data) +{ + uint32_t tmp[4]; + uint32_t xt0,xt1,xt2,xt3,xt4,xt5,xt6; + uint32_t a0, a1, a2, a3, row; + int curr_rnd; + int rounds = ctx->rounds; + const uint32_t *k = ctx->ks + ((rounds+1)*4); + + /* pre-round key addition */ + for (row=4; row > 0;row--) + data[row-1] ^= *(--k); + + /* Decrypt one block */ + for (curr_rnd = 0; curr_rnd < rounds; curr_rnd++) + { + /* Perform ByteSub and ShiftRow operations together */ + for (row = 4; row > 0; row--) + { + a0 = aes_isbox[(data[(row+3)%4]>>24)&0xFF]; + a1 = aes_isbox[(data[(row+2)%4]>>16)&0xFF]; + a2 = aes_isbox[(data[(row+1)%4]>>8)&0xFF]; + a3 = aes_isbox[(data[row%4])&0xFF]; + + /* Perform MixColumn iff not last round */ + if (curr_rnd<(rounds-1)) + { + /* The MDS cofefficients (0x09, 0x0B, 0x0D, 0x0E) + are quite large compared to encryption; this + operation slows decryption down noticeably. */ + xt0 = AES_xtime(a0^a1); + xt1 = AES_xtime(a1^a2); + xt2 = AES_xtime(a2^a3); + xt3 = AES_xtime(a3^a0); + xt4 = AES_xtime(xt0^xt1); + xt5 = AES_xtime(xt1^xt2); + xt6 = AES_xtime(xt4^xt5); + + xt0 ^= a1^a2^a3^xt4^xt6; + xt1 ^= a0^a2^a3^xt5^xt6; + xt2 ^= a0^a1^a3^xt4^xt6; + xt3 ^= a0^a1^a2^xt5^xt6; + tmp[row-1] = ((xt0<<24)|(xt1<<16)|(xt2<<8)|xt3); + } + else + tmp[row-1] = ((a0<<24)|(a1<<16)|(a2<<8)|a3); + } + + for (row = 4; row > 0; row--) + data[row-1] = tmp[row-1] ^ *(--k); + } +} + +#endif diff --git a/ccast/axTLS/asn1.c b/ccast/axTLS/asn1.c new file mode 100644 index 0000000..b082275 --- /dev/null +++ b/ccast/axTLS/asn1.c @@ -0,0 +1,566 @@ +/* + * Copyright (c) 2007, Cameron Rich + * + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * * Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * * Neither the name of the axTLS project nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, + * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF + * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING + * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +/** + * Some primitive asn methods for extraction ASN.1 data. + */ + +#include +#include +#include +#include +#include "os_port.h" +#include "crypto.h" +#include "crypto_misc.h" + +#define SIG_OID_PREFIX_SIZE 8 +#define SIG_IIS6_OID_SIZE 5 +#define SIG_SUBJECT_ALT_NAME_SIZE 3 + +/* Must be an RSA algorithm with either SHA1 or MD5 for verifying to work */ +static const uint8_t sig_oid_prefix[SIG_OID_PREFIX_SIZE] = +{ + 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d, 0x01, 0x01 +}; + +static const uint8_t sig_sha1WithRSAEncrypt[SIG_IIS6_OID_SIZE] = +{ + 0x2b, 0x0e, 0x03, 0x02, 0x1d +}; + +static const uint8_t sig_subject_alt_name[SIG_SUBJECT_ALT_NAME_SIZE] = +{ + 0x55, 0x1d, 0x11 +}; + +/* CN, O, OU */ +static const uint8_t g_dn_types[] = { 3, 10, 11 }; + +int get_asn1_length(const uint8_t *buf, int *offset) +{ + int len, i; + + if (!(buf[*offset] & 0x80)) /* short form */ + { + len = buf[(*offset)++]; + } + else /* long form */ + { + int length_bytes = buf[(*offset)++]&0x7f; + len = 0; + for (i = 0; i < length_bytes; i++) + { + len <<= 8; + len += buf[(*offset)++]; + } + } + + return len; +} + +/** + * Skip the ASN1.1 object type and its length. Get ready to read the object's + * data. + */ +int asn1_next_obj(const uint8_t *buf, int *offset, int obj_type) +{ + if (buf[*offset] != obj_type) + return X509_NOT_OK; + (*offset)++; + return get_asn1_length(buf, offset); +} + +/** + * Skip over an ASN.1 object type completely. Get ready to read the next + * object. + */ +int asn1_skip_obj(const uint8_t *buf, int *offset, int obj_type) +{ + int len; + + if (buf[*offset] != obj_type) + return X509_NOT_OK; + (*offset)++; + len = get_asn1_length(buf, offset); + *offset += len; + return 0; +} + +/** + * Read an integer value for ASN.1 data + * Note: This function allocates memory which must be freed by the user. + */ +int asn1_get_int(const uint8_t *buf, int *offset, uint8_t **object) +{ + int len; + + if ((len = asn1_next_obj(buf, offset, ASN1_INTEGER)) < 0) + goto end_int_array; + + if (len > 1 && buf[*offset] == 0x00) /* ignore the negative byte */ + { + len--; + (*offset)++; + } + + *object = (uint8_t *)malloc(len); + memcpy(*object, &buf[*offset], len); + *offset += len; + +end_int_array: + return len; +} + +/** + * Get all the RSA private key specifics from an ASN.1 encoded file + */ +int asn1_get_private_key(const uint8_t *buf, int len, RSA_CTX **rsa_ctx) +{ + int offset = 7; + uint8_t *modulus = NULL, *priv_exp = NULL, *pub_exp = NULL; + int mod_len, priv_len, pub_len; +#ifdef CONFIG_BIGINT_CRT + uint8_t *p = NULL, *q = NULL, *dP = NULL, *dQ = NULL, *qInv = NULL; + int p_len, q_len, dP_len, dQ_len, qInv_len; +#endif + + /* not in der format */ + if (buf[0] != ASN1_SEQUENCE) /* basic sanity check */ + { +#ifdef CONFIG_SSL_FULL_MODE + printf("Error: This is not a valid ASN.1 file\n"); +#endif + return X509_INVALID_PRIV_KEY; + } + + /* Use the private key to mix up the RNG if possible. */ + RNG_custom_init(buf, len); + + mod_len = asn1_get_int(buf, &offset, &modulus); + pub_len = asn1_get_int(buf, &offset, &pub_exp); + priv_len = asn1_get_int(buf, &offset, &priv_exp); + + if (mod_len <= 0 || pub_len <= 0 || priv_len <= 0) + return X509_INVALID_PRIV_KEY; + +#ifdef CONFIG_BIGINT_CRT + p_len = asn1_get_int(buf, &offset, &p); + q_len = asn1_get_int(buf, &offset, &q); + dP_len = asn1_get_int(buf, &offset, &dP); + dQ_len = asn1_get_int(buf, &offset, &dQ); + qInv_len = asn1_get_int(buf, &offset, &qInv); + + if (p_len <= 0 || q_len <= 0 || dP_len <= 0 || dQ_len <= 0 || qInv_len <= 0) + return X509_INVALID_PRIV_KEY; + + RSA_priv_key_new(rsa_ctx, + modulus, mod_len, pub_exp, pub_len, priv_exp, priv_len, + p, p_len, q, p_len, dP, dP_len, dQ, dQ_len, qInv, qInv_len); + + free(p); + free(q); + free(dP); + free(dQ); + free(qInv); +#else + RSA_priv_key_new(rsa_ctx, + modulus, mod_len, pub_exp, pub_len, priv_exp, priv_len); +#endif + + free(modulus); + free(priv_exp); + free(pub_exp); + return X509_OK; +} + +/** + * Get the time of a certificate. Ignore hours/minutes/seconds. + */ +static int asn1_get_utc_time(const uint8_t *buf, int *offset, time_t *t) +{ + int ret = X509_NOT_OK, len, t_offset; + struct tm tm; + + if (buf[(*offset)++] != ASN1_UTC_TIME) + goto end_utc_time; + + len = get_asn1_length(buf, offset); + t_offset = *offset; + + memset(&tm, 0, sizeof(struct tm)); + tm.tm_year = (buf[t_offset] - '0')*10 + (buf[t_offset+1] - '0'); + + if (tm.tm_year <= 50) /* 1951-2050 thing */ + { + tm.tm_year += 100; + } + + tm.tm_mon = (buf[t_offset+2] - '0')*10 + (buf[t_offset+3] - '0') - 1; + tm.tm_mday = (buf[t_offset+4] - '0')*10 + (buf[t_offset+5] - '0'); + *t = mktime(&tm); + *offset += len; + ret = X509_OK; + +end_utc_time: + return ret; +} + +/** + * Get the version type of a certificate (which we don't actually care about) + */ +int asn1_version(const uint8_t *cert, int *offset, X509_CTX *x509_ctx) +{ + int ret = X509_NOT_OK; + + (*offset) += 2; /* get past explicit tag */ + if (asn1_skip_obj(cert, offset, ASN1_INTEGER)) + goto end_version; + + ret = X509_OK; +end_version: + return ret; +} + +/** + * Retrieve the notbefore and notafter certificate times. + */ +int asn1_validity(const uint8_t *cert, int *offset, X509_CTX *x509_ctx) +{ + return (asn1_next_obj(cert, offset, ASN1_SEQUENCE) < 0 || + asn1_get_utc_time(cert, offset, &x509_ctx->not_before) || + asn1_get_utc_time(cert, offset, &x509_ctx->not_after)); +} + +/** + * Get the components of a distinguished name + */ +static int asn1_get_oid_x520(const uint8_t *buf, int *offset) +{ + int dn_type = 0; + int len; + + if ((len = asn1_next_obj(buf, offset, ASN1_OID)) < 0) + goto end_oid; + + /* expect a sequence of 2.5.4.[x] where x is a one of distinguished name + components we are interested in. */ + if (len == 3 && buf[(*offset)++] == 0x55 && buf[(*offset)++] == 0x04) + dn_type = buf[(*offset)++]; + else + { + *offset += len; /* skip over it */ + } + +end_oid: + return dn_type; +} + +/** + * Obtain an ASN.1 printable string type. + */ +static int asn1_get_printable_str(const uint8_t *buf, int *offset, char **str) +{ + int len = X509_NOT_OK; + int asn1_type = buf[*offset]; + + /* some certs have this awful crud in them for some reason */ + if (asn1_type != ASN1_PRINTABLE_STR && + asn1_type != ASN1_PRINTABLE_STR2 && + asn1_type != ASN1_TELETEX_STR && + asn1_type != ASN1_IA5_STR && + asn1_type != ASN1_UNICODE_STR) + goto end_pnt_str; + + (*offset)++; + len = get_asn1_length(buf, offset); + + if (asn1_type == ASN1_UNICODE_STR) + { + int i; + *str = (char *)malloc(len/2+1); /* allow for null */ + + for (i = 0; i < len; i += 2) + (*str)[i/2] = buf[*offset + i + 1]; + + (*str)[len/2] = 0; /* null terminate */ + } + else + { + *str = (char *)malloc(len+1); /* allow for null */ + memcpy(*str, &buf[*offset], len); + (*str)[len] = 0; /* null terminate */ + } + + *offset += len; + +end_pnt_str: + return len; +} + +/** + * Get the subject name (or the issuer) of a certificate. + */ +int asn1_name(const uint8_t *cert, int *offset, char *dn[]) +{ + int ret = X509_NOT_OK; + int dn_type; + char *tmp; + + if (asn1_next_obj(cert, offset, ASN1_SEQUENCE) < 0) + goto end_name; + + while (asn1_next_obj(cert, offset, ASN1_SET) >= 0) + { + int i, found = 0; + + if (asn1_next_obj(cert, offset, ASN1_SEQUENCE) < 0 || + (dn_type = asn1_get_oid_x520(cert, offset)) < 0) + goto end_name; + + tmp = NULL; + + if (asn1_get_printable_str(cert, offset, &tmp) < 0) + { + free(tmp); + goto end_name; + } + + /* find the distinguished named type */ + for (i = 0; i < X509_NUM_DN_TYPES; i++) + { + if (dn_type == g_dn_types[i]) + { + if (dn[i] == NULL) + { + dn[i] = tmp; + found = 1; + break; + } + } + } + + if (found == 0) /* not found so get rid of it */ + { + free(tmp); + } + } + + ret = X509_OK; +end_name: + return ret; +} + +/** + * Read the modulus and public exponent of a certificate. + */ +int asn1_public_key(const uint8_t *cert, int *offset, X509_CTX *x509_ctx) +{ + int ret = X509_NOT_OK, mod_len, pub_len; + uint8_t *modulus = NULL, *pub_exp = NULL; + + if (asn1_next_obj(cert, offset, ASN1_SEQUENCE) < 0 || + asn1_skip_obj(cert, offset, ASN1_SEQUENCE) || + asn1_next_obj(cert, offset, ASN1_BIT_STRING) < 0) + goto end_pub_key; + + (*offset)++; /* ignore the padding bit field */ + + if (asn1_next_obj(cert, offset, ASN1_SEQUENCE) < 0) + goto end_pub_key; + + mod_len = asn1_get_int(cert, offset, &modulus); + pub_len = asn1_get_int(cert, offset, &pub_exp); + + RSA_pub_key_new(&x509_ctx->rsa_ctx, modulus, mod_len, pub_exp, pub_len); + + free(modulus); + free(pub_exp); + ret = X509_OK; + +end_pub_key: + return ret; +} + +#ifdef CONFIG_SSL_CERT_VERIFICATION +/** + * Read the signature of the certificate. + */ +int asn1_signature(const uint8_t *cert, int *offset, X509_CTX *x509_ctx) +{ + int ret = X509_NOT_OK; + + if (cert[(*offset)++] != ASN1_BIT_STRING) + goto end_sig; + + x509_ctx->sig_len = get_asn1_length(cert, offset)-1; + (*offset)++; /* ignore bit string padding bits */ + x509_ctx->signature = (uint8_t *)malloc(x509_ctx->sig_len); + memcpy(x509_ctx->signature, &cert[*offset], x509_ctx->sig_len); + *offset += x509_ctx->sig_len; + ret = X509_OK; + +end_sig: + return ret; +} + +/* + * Compare 2 distinguished name components for equality + * @return 0 if a match + */ +static int asn1_compare_dn_comp(const char *dn1, const char *dn2) +{ + int ret; + + if (dn1 == NULL && dn2 == NULL) + ret = 0; + else + ret = (dn1 && dn2) ? strcmp(dn1, dn2) : 1; + + return ret; +} + +/** + * Clean up all of the CA certificates. + */ +void remove_ca_certs(CA_CERT_CTX *ca_cert_ctx) +{ + int i = 0; + + if (ca_cert_ctx == NULL) + return; + + while (i < CONFIG_X509_MAX_CA_CERTS && ca_cert_ctx->cert[i]) + { + x509_free(ca_cert_ctx->cert[i]); + ca_cert_ctx->cert[i++] = NULL; + } + + free(ca_cert_ctx); +} + +/* + * Compare 2 distinguished names for equality + * @return 0 if a match + */ +int asn1_compare_dn(char * const dn1[], char * const dn2[]) +{ + int i; + + for (i = 0; i < X509_NUM_DN_TYPES; i++) + { + if (asn1_compare_dn_comp(dn1[i], dn2[i])) + return 1; + } + + return 0; /* all good */ +} + +int asn1_find_oid(const uint8_t* cert, int* offset, + const uint8_t* oid, int oid_length) +{ + int seqlen; + if ((seqlen = asn1_next_obj(cert, offset, ASN1_SEQUENCE))> 0) + { + int end = *offset + seqlen; + + while (*offset < end) + { + int type = cert[(*offset)++]; + int length = get_asn1_length(cert, offset); + int noffset = *offset + length; + + if (type == ASN1_SEQUENCE) + { + type = cert[(*offset)++]; + length = get_asn1_length(cert, offset); + + if (type == ASN1_OID && length == oid_length && + memcmp(cert + *offset, oid, oid_length) == 0) + { + *offset += oid_length; + return 1; + } + } + + *offset = noffset; + } + } + + return 0; +} + +int asn1_find_subjectaltname(const uint8_t* cert, int offset) +{ + if (asn1_find_oid(cert, &offset, sig_subject_alt_name, + SIG_SUBJECT_ALT_NAME_SIZE)) + { + return offset; + } + + return 0; +} + +#endif /* CONFIG_SSL_CERT_VERIFICATION */ + +/** + * Read the signature type of the certificate. We only support RSA-MD5 and + * RSA-SHA1 signature types. + */ +int asn1_signature_type(const uint8_t *cert, + int *offset, X509_CTX *x509_ctx) +{ + int ret = X509_NOT_OK, len; + + if (cert[(*offset)++] != ASN1_OID) + goto end_check_sig; + + len = get_asn1_length(cert, offset); + + if (len == 5 && memcmp(sig_sha1WithRSAEncrypt, &cert[*offset], + SIG_IIS6_OID_SIZE) == 0) + { + x509_ctx->sig_type = SIG_TYPE_SHA1; + } + else + { + if (memcmp(sig_oid_prefix, &cert[*offset], SIG_OID_PREFIX_SIZE)) + goto end_check_sig; /* unrecognised cert type */ + + x509_ctx->sig_type = cert[*offset + SIG_OID_PREFIX_SIZE]; + } + + *offset += len; + asn1_skip_obj(cert, offset, ASN1_NULL); /* if it's there */ + ret = X509_OK; + +end_check_sig: + return ret; +} + diff --git a/ccast/axTLS/bigint.c b/ccast/axTLS/bigint.c new file mode 100644 index 0000000..e9ca04c --- /dev/null +++ b/ccast/axTLS/bigint.c @@ -0,0 +1,1512 @@ +/* + * Copyright (c) 2007, Cameron Rich + * + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * * Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * * Neither the name of the axTLS project nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, + * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF + * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING + * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +/** + * @defgroup bigint_api Big Integer API + * @brief The bigint implementation as used by the axTLS project. + * + * The bigint library is for RSA encryption/decryption as well as signing. + * This code tries to minimise use of malloc/free by maintaining a small + * cache. A bigint context may maintain state by being made "permanent". + * It be be later released with a bi_depermanent() and bi_free() call. + * + * It supports the following reduction techniques: + * - Classical + * - Barrett + * - Montgomery + * + * It also implements the following: + * - Karatsuba multiplication + * - Squaring + * - Sliding window exponentiation + * - Chinese Remainder Theorem (implemented in rsa.c). + * + * All the algorithms used are pretty standard, and designed for different + * data bus sizes. Negative numbers are not dealt with at all, so a subtraction + * may need to be tested for negativity. + * + * This library steals some ideas from Jef Poskanzer + * + * and GMP . It gets most of its implementation + * detail from "The Handbook of Applied Cryptography" + * + * @{ + */ + +#include +#include +#include +#include +#include +#include "os_port.h" +#include "bigint.h" + +#define V1 v->comps[v->size-1] /**< v1 for division */ +#define V2 v->comps[v->size-2] /**< v2 for division */ +#define U(j) tmp_u->comps[tmp_u->size-j-1] /**< uj for division */ +#define Q(j) quotient->comps[quotient->size-j-1] /**< qj for division */ + +static bigint *bi_int_multiply(BI_CTX *ctx, bigint *bi, comp i); +static bigint *bi_int_divide(BI_CTX *ctx, bigint *biR, comp denom); +static bigint *alloc(BI_CTX *ctx, int size); +static bigint *trim(bigint *bi); +static void more_comps(bigint *bi, int n); +#if defined(CONFIG_BIGINT_KARATSUBA) || defined(CONFIG_BIGINT_BARRETT) || \ + defined(CONFIG_BIGINT_MONTGOMERY) +static bigint *comp_right_shift(bigint *biR, int num_shifts); +static bigint *comp_left_shift(bigint *biR, int num_shifts); +#endif + +#ifdef CONFIG_BIGINT_CHECK_ON +static void check(const bigint *bi); +#else +#define check(A) /**< disappears in normal production mode */ +#endif + + +/** + * @brief Start a new bigint context. + * @return A bigint context. + */ +BI_CTX *bi_initialize(void) +{ + /* calloc() sets everything to zero */ + BI_CTX *ctx = (BI_CTX *)calloc(1, sizeof(BI_CTX)); + + /* the radix */ + ctx->bi_radix = alloc(ctx, 2); + ctx->bi_radix->comps[0] = 0; + ctx->bi_radix->comps[1] = 1; + bi_permanent(ctx->bi_radix); + return ctx; +} + +/** + * @brief Close the bigint context and free any resources. + * + * Free up any used memory - a check is done if all objects were not + * properly freed. + * @param ctx [in] The bigint session context. + */ +void bi_terminate(BI_CTX *ctx) +{ + bi_depermanent(ctx->bi_radix); + bi_free(ctx, ctx->bi_radix); + + if (ctx->active_count != 0) + { +#ifdef CONFIG_SSL_FULL_MODE + printf("bi_terminate: there were %d un-freed bigints\n", + ctx->active_count); +#endif + abort(); + } + + bi_clear_cache(ctx); + free(ctx); +} + +/** + *@brief Clear the memory cache. + */ +void bi_clear_cache(BI_CTX *ctx) +{ + bigint *p, *pn; + + if (ctx->free_list == NULL) + return; + + for (p = ctx->free_list; p != NULL; p = pn) + { + pn = p->next; + free(p->comps); + free(p); + } + + ctx->free_count = 0; + ctx->free_list = NULL; +} + +/** + * @brief Increment the number of references to this object. + * It does not do a full copy. + * @param bi [in] The bigint to copy. + * @return A reference to the same bigint. + */ +bigint *bi_copy(bigint *bi) +{ + check(bi); + if (bi->refs != PERMANENT) + bi->refs++; + return bi; +} + +/** + * @brief Simply make a bigint object "unfreeable" if bi_free() is called on it. + * + * For this object to be freed, bi_depermanent() must be called. + * @param bi [in] The bigint to be made permanent. + */ +void bi_permanent(bigint *bi) +{ + check(bi); + if (bi->refs != 1) + { +#ifdef CONFIG_SSL_FULL_MODE + printf("bi_permanent: refs was not 1\n"); +#endif + abort(); + } + + bi->refs = PERMANENT; +} + +/** + * @brief Take a permanent object and make it eligible for freedom. + * @param bi [in] The bigint to be made back to temporary. + */ +void bi_depermanent(bigint *bi) +{ + check(bi); + if (bi->refs != PERMANENT) + { +#ifdef CONFIG_SSL_FULL_MODE + printf("bi_depermanent: bigint was not permanent\n"); +#endif + abort(); + } + + bi->refs = 1; +} + +/** + * @brief Free a bigint object so it can be used again. + * + * The memory itself it not actually freed, just tagged as being available + * @param ctx [in] The bigint session context. + * @param bi [in] The bigint to be freed. + */ +void bi_free(BI_CTX *ctx, bigint *bi) +{ + check(bi); + if (bi->refs == PERMANENT) + { + return; + } + + if (--bi->refs > 0) + { + return; + } + + bi->next = ctx->free_list; + ctx->free_list = bi; + ctx->free_count++; + + if (--ctx->active_count < 0) + { +#ifdef CONFIG_SSL_FULL_MODE + printf("bi_free: active_count went negative " + "- double-freed bigint?\n"); +#endif + abort(); + } +} + +/** + * @brief Convert an (unsigned) integer into a bigint. + * @param ctx [in] The bigint session context. + * @param i [in] The (unsigned) integer to be converted. + * + */ +bigint *int_to_bi(BI_CTX *ctx, comp i) +{ + bigint *biR = alloc(ctx, 1); + biR->comps[0] = i; + return biR; +} + +/** + * @brief Do a full copy of the bigint object. + * @param ctx [in] The bigint session context. + * @param bi [in] The bigint object to be copied. + */ +bigint *bi_clone(BI_CTX *ctx, const bigint *bi) +{ + bigint *biR = alloc(ctx, bi->size); + check(bi); + memcpy(biR->comps, bi->comps, bi->size*COMP_BYTE_SIZE); + return biR; +} + +/** + * @brief Perform an addition operation between two bigints. + * @param ctx [in] The bigint session context. + * @param bia [in] A bigint. + * @param bib [in] Another bigint. + * @return The result of the addition. + */ +bigint *bi_add(BI_CTX *ctx, bigint *bia, bigint *bib) +{ + int n; + comp carry = 0; + comp *pa, *pb; + + check(bia); + check(bib); + + n = max(bia->size, bib->size); + more_comps(bia, n+1); + more_comps(bib, n); + pa = bia->comps; + pb = bib->comps; + + do + { + comp sl, rl, cy1; + sl = *pa + *pb++; + rl = sl + carry; + cy1 = sl < *pa; + carry = cy1 | (rl < sl); + *pa++ = rl; + } while (--n != 0); + + *pa = carry; /* do overflow */ + bi_free(ctx, bib); + return trim(bia); +} + +/** + * @brief Perform a subtraction operation between two bigints. + * @param ctx [in] The bigint session context. + * @param bia [in] A bigint. + * @param bib [in] Another bigint. + * @param is_negative [out] If defined, indicates that the result was negative. + * is_negative may be null. + * @return The result of the subtraction. The result is always positive. + */ +bigint *bi_subtract(BI_CTX *ctx, + bigint *bia, bigint *bib, int *is_negative) +{ + int n = bia->size; + comp *pa, *pb, carry = 0; + + check(bia); + check(bib); + + more_comps(bib, n); + pa = bia->comps; + pb = bib->comps; + + do + { + comp sl, rl, cy1; + sl = *pa - *pb++; + rl = sl - carry; + cy1 = sl > *pa; + carry = cy1 | (rl > sl); + *pa++ = rl; + } while (--n != 0); + + if (is_negative) /* indicate a negative result */ + { + *is_negative = carry; + } + + bi_free(ctx, trim(bib)); /* put bib back to the way it was */ + return trim(bia); +} + +/** + * Perform a multiply between a bigint an an (unsigned) integer + */ +static bigint *bi_int_multiply(BI_CTX *ctx, bigint *bia, comp b) +{ + int j = 0, n = bia->size; + bigint *biR = alloc(ctx, n + 1); + comp carry = 0; + comp *r = biR->comps; + comp *a = bia->comps; + + check(bia); + + /* clear things to start with */ + memset(r, 0, ((n+1)*COMP_BYTE_SIZE)); + + do + { + long_comp tmp = *r + (long_comp)a[j]*b + carry; + *r++ = (comp)tmp; /* downsize */ + carry = (comp)(tmp >> COMP_BIT_SIZE); + } while (++j < n); + + *r = carry; + bi_free(ctx, bia); + return trim(biR); +} + +/** + * @brief Does both division and modulo calculations. + * + * Used extensively when doing classical reduction. + * @param ctx [in] The bigint session context. + * @param u [in] A bigint which is the numerator. + * @param v [in] Either the denominator or the modulus depending on the mode. + * @param is_mod [n] Determines if this is a normal division (0) or a reduction + * (1). + * @return The result of the division/reduction. + */ +bigint *bi_divide(BI_CTX *ctx, bigint *u, bigint *v, int is_mod) +{ + int n = v->size, m = u->size-n; + int j = 0, orig_u_size = u->size; + uint8_t mod_offset = ctx->mod_offset; + comp d; + bigint *quotient, *tmp_u; + comp q_dash; + + check(u); + check(v); + + /* if doing reduction and we are < mod, then return mod */ + if (is_mod && bi_compare(v, u) > 0) + { + bi_free(ctx, v); + return u; + } + + quotient = alloc(ctx, m+1); + tmp_u = alloc(ctx, n+1); + v = trim(v); /* make sure we have no leading 0's */ + d = (comp)((long_comp)COMP_RADIX/(V1+1)); + + /* clear things to start with */ + memset(quotient->comps, 0, ((quotient->size)*COMP_BYTE_SIZE)); + + /* normalise */ + if (d > 1) + { + u = bi_int_multiply(ctx, u, d); + + if (is_mod) + { + v = ctx->bi_normalised_mod[mod_offset]; + } + else + { + v = bi_int_multiply(ctx, v, d); + } + } + + if (orig_u_size == u->size) /* new digit position u0 */ + { + more_comps(u, orig_u_size + 1); + } + + do + { + /* get a temporary short version of u */ + memcpy(tmp_u->comps, &u->comps[u->size-n-1-j], (n+1)*COMP_BYTE_SIZE); + + /* calculate q' */ + if (U(0) == V1) + { + q_dash = COMP_RADIX-1; + } + else + { + q_dash = (comp)(((long_comp)U(0)*COMP_RADIX + U(1))/V1); + + if (v->size > 1 && V2) + { + /* we are implementing the following: + if (V2*q_dash > (((U(0)*COMP_RADIX + U(1) - + q_dash*V1)*COMP_RADIX) + U(2))) ... */ + comp inner = (comp)((long_comp)COMP_RADIX*U(0) + U(1) - + (long_comp)q_dash*V1); + if ((long_comp)V2*q_dash > (long_comp)inner*COMP_RADIX + U(2)) + { + q_dash--; + } + } + } + + /* multiply and subtract */ + if (q_dash) + { + int is_negative; + tmp_u = bi_subtract(ctx, tmp_u, + bi_int_multiply(ctx, bi_copy(v), q_dash), &is_negative); + more_comps(tmp_u, n+1); + + Q(j) = q_dash; + + /* add back */ + if (is_negative) + { + Q(j)--; + tmp_u = bi_add(ctx, tmp_u, bi_copy(v)); + + /* lop off the carry */ + tmp_u->size--; + v->size--; + } + } + else + { + Q(j) = 0; + } + + /* copy back to u */ + memcpy(&u->comps[u->size-n-1-j], tmp_u->comps, (n+1)*COMP_BYTE_SIZE); + } while (++j <= m); + + bi_free(ctx, tmp_u); + bi_free(ctx, v); + + if (is_mod) /* get the remainder */ + { + bi_free(ctx, quotient); + return bi_int_divide(ctx, trim(u), d); + } + else /* get the quotient */ + { + bi_free(ctx, u); + return trim(quotient); + } +} + +/* + * Perform an integer divide on a bigint. + */ +static bigint *bi_int_divide(BI_CTX *ctx, bigint *biR, comp denom) +{ + int i = biR->size - 1; + long_comp r = 0; + + check(biR); + + do + { + r = (r<comps[i]; + biR->comps[i] = (comp)(r / denom); + r %= denom; + } while (--i >= 0); + + return trim(biR); +} + +#ifdef CONFIG_BIGINT_MONTGOMERY +/** + * There is a need for the value of integer N' such that B^-1(B-1)-N^-1N'=1, + * where B^-1(B-1) mod N=1. Actually, only the least significant part of + * N' is needed, hence the definition N0'=N' mod b. We reproduce below the + * simple algorithm from an article by Dusse and Kaliski to efficiently + * find N0' from N0 and b */ +static comp modular_inverse(bigint *bim) +{ + int i; + comp t = 1; + comp two_2_i_minus_1 = 2; /* 2^(i-1) */ + long_comp two_2_i = 4; /* 2^i */ + comp N = bim->comps[0]; + + for (i = 2; i <= COMP_BIT_SIZE; i++) + { + if ((long_comp)N*t%two_2_i >= two_2_i_minus_1) + { + t += two_2_i_minus_1; + } + + two_2_i_minus_1 <<= 1; + two_2_i <<= 1; + } + + return (comp)(COMP_RADIX-t); +} +#endif + +#if defined(CONFIG_BIGINT_KARATSUBA) || defined(CONFIG_BIGINT_BARRETT) || \ + defined(CONFIG_BIGINT_MONTGOMERY) +/** + * Take each component and shift down (in terms of components) + */ +static bigint *comp_right_shift(bigint *biR, int num_shifts) +{ + int i = biR->size-num_shifts; + comp *x = biR->comps; + comp *y = &biR->comps[num_shifts]; + + check(biR); + + if (i <= 0) /* have we completely right shifted? */ + { + biR->comps[0] = 0; /* return 0 */ + biR->size = 1; + return biR; + } + + do + { + *x++ = *y++; + } while (--i > 0); + + biR->size -= num_shifts; + return biR; +} + +/** + * Take each component and shift it up (in terms of components) + */ +static bigint *comp_left_shift(bigint *biR, int num_shifts) +{ + int i = biR->size-1; + comp *x, *y; + + check(biR); + + if (num_shifts <= 0) + { + return biR; + } + + more_comps(biR, biR->size + num_shifts); + + x = &biR->comps[i+num_shifts]; + y = &biR->comps[i]; + + do + { + *x-- = *y--; + } while (i--); + + memset(biR->comps, 0, num_shifts*COMP_BYTE_SIZE); /* zero LS comps */ + return biR; +} +#endif + +/** + * @brief Allow a binary sequence to be imported as a bigint. + * @param ctx [in] The bigint session context. + * @param data [in] The data to be converted. + * @param size [in] The number of bytes of data. + * @return A bigint representing this data. + */ +bigint *bi_import(BI_CTX *ctx, const uint8_t *data, int size) +{ + bigint *biR = alloc(ctx, (size+COMP_BYTE_SIZE-1)/COMP_BYTE_SIZE); + int i, j = 0, offset = 0; + + memset(biR->comps, 0, biR->size*COMP_BYTE_SIZE); + + for (i = size-1; i >= 0; i--) + { + biR->comps[offset] += data[i] << (j*8); + + if (++j == COMP_BYTE_SIZE) + { + j = 0; + offset ++; + } + } + + return trim(biR); +} + +#ifdef CONFIG_SSL_FULL_MODE +/** + * @brief The testharness uses this code to import text hex-streams and + * convert them into bigints. + * @param ctx [in] The bigint session context. + * @param data [in] A string consisting of hex characters. The characters must + * be in upper case. + * @return A bigint representing this data. + */ +bigint *bi_str_import(BI_CTX *ctx, const char *data) +{ + int size = strlen(data); + bigint *biR = alloc(ctx, (size+COMP_NUM_NIBBLES-1)/COMP_NUM_NIBBLES); + int i, j = 0, offset = 0; + memset(biR->comps, 0, biR->size*COMP_BYTE_SIZE); + + for (i = size-1; i >= 0; i--) + { + int num = (data[i] <= '9') ? (data[i] - '0') : (data[i] - 'A' + 10); + biR->comps[offset] += num << (j*4); + + if (++j == COMP_NUM_NIBBLES) + { + j = 0; + offset ++; + } + } + + return biR; +} + +void bi_print(const char *label, bigint *x) +{ + int i, j; + + if (x == NULL) + { + printf("%s: (null)\n", label); + return; + } + + printf("%s: (size %d)\n", label, x->size); + for (i = x->size-1; i >= 0; i--) + { + for (j = COMP_NUM_NIBBLES-1; j >= 0; j--) + { + comp mask = 0x0f << (j*4); + comp num = (x->comps[i] & mask) >> (j*4); + putc((num <= 9) ? (num + '0') : (num + 'A' - 10), stdout); + } + } + + printf("\n"); +} +#endif + +/** + * @brief Take a bigint and convert it into a byte sequence. + * + * This is useful after a decrypt operation. + * @param ctx [in] The bigint session context. + * @param x [in] The bigint to be converted. + * @param data [out] The converted data as a byte stream. + * @param size [in] The maximum size of the byte stream. Unused bytes will be + * zeroed. + */ +void bi_export(BI_CTX *ctx, bigint *x, uint8_t *data, int size) +{ + int i, j, k = size-1; + + check(x); + memset(data, 0, size); /* ensure all leading 0's are cleared */ + + for (i = 0; i < x->size; i++) + { + for (j = 0; j < COMP_BYTE_SIZE; j++) + { + comp mask = 0xff << (j*8); + int num = (x->comps[i] & mask) >> (j*8); + data[k--] = num; + + if (k < 0) + { + goto buf_done; + } + } + } +buf_done: + + bi_free(ctx, x); +} + +/** + * @brief Pre-calculate some of the expensive steps in reduction. + * + * This function should only be called once (normally when a session starts). + * When the session is over, bi_free_mod() should be called. bi_mod_power() + * relies on this function being called. + * @param ctx [in] The bigint session context. + * @param bim [in] The bigint modulus that will be used. + * @param mod_offset [in] There are three moduluii that can be stored - the + * standard modulus, and its two primes p and q. This offset refers to which + * modulus we are referring to. + * @see bi_free_mod(), bi_mod_power(). + */ +void bi_set_mod(BI_CTX *ctx, bigint *bim, int mod_offset) +{ + int k = bim->size; + comp d = (comp)((long_comp)COMP_RADIX/(bim->comps[k-1]+1)); +#ifdef CONFIG_BIGINT_MONTGOMERY + bigint *R, *R2; +#endif + + ctx->bi_mod[mod_offset] = bim; + bi_permanent(ctx->bi_mod[mod_offset]); + ctx->bi_normalised_mod[mod_offset] = bi_int_multiply(ctx, bim, d); + bi_permanent(ctx->bi_normalised_mod[mod_offset]); + +#if defined(CONFIG_BIGINT_MONTGOMERY) + /* set montgomery variables */ + R = comp_left_shift(bi_clone(ctx, ctx->bi_radix), k-1); /* R */ + R2 = comp_left_shift(bi_clone(ctx, ctx->bi_radix), k*2-1); /* R^2 */ + ctx->bi_RR_mod_m[mod_offset] = bi_mod(ctx, R2); /* R^2 mod m */ + ctx->bi_R_mod_m[mod_offset] = bi_mod(ctx, R); /* R mod m */ + + bi_permanent(ctx->bi_RR_mod_m[mod_offset]); + bi_permanent(ctx->bi_R_mod_m[mod_offset]); + + ctx->N0_dash[mod_offset] = modular_inverse(ctx->bi_mod[mod_offset]); + +#elif defined (CONFIG_BIGINT_BARRETT) + ctx->bi_mu[mod_offset] = + bi_divide(ctx, comp_left_shift( + bi_clone(ctx, ctx->bi_radix), k*2-1), ctx->bi_mod[mod_offset], 0); + bi_permanent(ctx->bi_mu[mod_offset]); +#endif +} + +/** + * @brief Used when cleaning various bigints at the end of a session. + * @param ctx [in] The bigint session context. + * @param mod_offset [in] The offset to use. + * @see bi_set_mod(). + */ +void bi_free_mod(BI_CTX *ctx, int mod_offset) +{ + bi_depermanent(ctx->bi_mod[mod_offset]); + bi_free(ctx, ctx->bi_mod[mod_offset]); +#if defined (CONFIG_BIGINT_MONTGOMERY) + bi_depermanent(ctx->bi_RR_mod_m[mod_offset]); + bi_depermanent(ctx->bi_R_mod_m[mod_offset]); + bi_free(ctx, ctx->bi_RR_mod_m[mod_offset]); + bi_free(ctx, ctx->bi_R_mod_m[mod_offset]); +#elif defined(CONFIG_BIGINT_BARRETT) + bi_depermanent(ctx->bi_mu[mod_offset]); + bi_free(ctx, ctx->bi_mu[mod_offset]); +#endif + bi_depermanent(ctx->bi_normalised_mod[mod_offset]); + bi_free(ctx, ctx->bi_normalised_mod[mod_offset]); +} + +/** + * Perform a standard multiplication between two bigints. + * + * Barrett reduction has no need for some parts of the product, so ignore bits + * of the multiply. This routine gives Barrett its big performance + * improvements over Classical/Montgomery reduction methods. + */ +static bigint *regular_multiply(BI_CTX *ctx, bigint *bia, bigint *bib, + int inner_partial, int outer_partial) +{ + int i = 0, j; + int n = bia->size; + int t = bib->size; + bigint *biR = alloc(ctx, n + t); + comp *sr = biR->comps; + comp *sa = bia->comps; + comp *sb = bib->comps; + + check(bia); + check(bib); + + /* clear things to start with */ + memset(biR->comps, 0, ((n+t)*COMP_BYTE_SIZE)); + + do + { + long_comp tmp; + comp carry = 0; + int r_index = i; + j = 0; + + if (outer_partial && outer_partial-i > 0 && outer_partial < n) + { + r_index = outer_partial-1; + j = outer_partial-i-1; + } + + do + { + if (inner_partial && r_index >= inner_partial) + { + break; + } + + tmp = sr[r_index] + ((long_comp)sa[j])*sb[i] + carry; + sr[r_index++] = (comp)tmp; /* downsize */ + carry = tmp >> COMP_BIT_SIZE; + } while (++j < n); + + sr[r_index] = carry; + } while (++i < t); + + bi_free(ctx, bia); + bi_free(ctx, bib); + return trim(biR); +} + +#ifdef CONFIG_BIGINT_KARATSUBA +/* + * Karatsuba improves on regular multiplication due to only 3 multiplications + * being done instead of 4. The additional additions/subtractions are O(N) + * rather than O(N^2) and so for big numbers it saves on a few operations + */ +static bigint *karatsuba(BI_CTX *ctx, bigint *bia, bigint *bib, int is_square) +{ + bigint *x0, *x1; + bigint *p0, *p1, *p2; + int m; + + if (is_square) + { + m = (bia->size + 1)/2; + } + else + { + m = (max(bia->size, bib->size) + 1)/2; + } + + x0 = bi_clone(ctx, bia); + x0->size = m; + x1 = bi_clone(ctx, bia); + comp_right_shift(x1, m); + bi_free(ctx, bia); + + /* work out the 3 partial products */ + if (is_square) + { + p0 = bi_square(ctx, bi_copy(x0)); + p2 = bi_square(ctx, bi_copy(x1)); + p1 = bi_square(ctx, bi_add(ctx, x0, x1)); + } + else /* normal multiply */ + { + bigint *y0, *y1; + y0 = bi_clone(ctx, bib); + y0->size = m; + y1 = bi_clone(ctx, bib); + comp_right_shift(y1, m); + bi_free(ctx, bib); + + p0 = bi_multiply(ctx, bi_copy(x0), bi_copy(y0)); + p2 = bi_multiply(ctx, bi_copy(x1), bi_copy(y1)); + p1 = bi_multiply(ctx, bi_add(ctx, x0, x1), bi_add(ctx, y0, y1)); + } + + p1 = bi_subtract(ctx, + bi_subtract(ctx, p1, bi_copy(p2), NULL), bi_copy(p0), NULL); + + comp_left_shift(p1, m); + comp_left_shift(p2, 2*m); + return bi_add(ctx, p1, bi_add(ctx, p0, p2)); +} +#endif + +/** + * @brief Perform a multiplication operation between two bigints. + * @param ctx [in] The bigint session context. + * @param bia [in] A bigint. + * @param bib [in] Another bigint. + * @return The result of the multiplication. + */ +bigint *bi_multiply(BI_CTX *ctx, bigint *bia, bigint *bib) +{ + check(bia); + check(bib); + +#ifdef CONFIG_BIGINT_KARATSUBA + if (min(bia->size, bib->size) < MUL_KARATSUBA_THRESH) + { + return regular_multiply(ctx, bia, bib, 0, 0); + } + + return karatsuba(ctx, bia, bib, 0); +#else + return regular_multiply(ctx, bia, bib, 0, 0); +#endif +} + +#ifdef CONFIG_BIGINT_SQUARE +/* + * Perform the actual square operion. It takes into account overflow. + */ +static bigint *regular_square(BI_CTX *ctx, bigint *bi) +{ + int t = bi->size; + int i = 0, j; + bigint *biR = alloc(ctx, t*2+1); + comp *w = biR->comps; + comp *x = bi->comps; + long_comp carry; + memset(w, 0, biR->size*COMP_BYTE_SIZE); + + do + { + long_comp tmp = w[2*i] + (long_comp)x[i]*x[i]; + w[2*i] = (comp)tmp; + carry = tmp >> COMP_BIT_SIZE; + + for (j = i+1; j < t; j++) + { + uint8_t c = 0; + long_comp xx = (long_comp)x[i]*x[j]; + if ((COMP_MAX-xx) < xx) + c = 1; + + tmp = (xx<<1); + + if ((COMP_MAX-tmp) < w[i+j]) + c = 1; + + tmp += w[i+j]; + + if ((COMP_MAX-tmp) < carry) + c = 1; + + tmp += carry; + w[i+j] = (comp)tmp; + carry = tmp >> COMP_BIT_SIZE; + + if (c) + carry += COMP_RADIX; + } + + tmp = w[i+t] + carry; + w[i+t] = (comp)tmp; + w[i+t+1] = tmp >> COMP_BIT_SIZE; + } while (++i < t); + + bi_free(ctx, bi); + return trim(biR); +} + +/** + * @brief Perform a square operation on a bigint. + * @param ctx [in] The bigint session context. + * @param bia [in] A bigint. + * @return The result of the multiplication. + */ +bigint *bi_square(BI_CTX *ctx, bigint *bia) +{ + check(bia); + +#ifdef CONFIG_BIGINT_KARATSUBA + if (bia->size < SQU_KARATSUBA_THRESH) + { + return regular_square(ctx, bia); + } + + return karatsuba(ctx, bia, NULL, 1); +#else + return regular_square(ctx, bia); +#endif +} +#endif + +/** + * @brief Compare two bigints. + * @param bia [in] A bigint. + * @param bib [in] Another bigint. + * @return -1 if smaller, 1 if larger and 0 if equal. + */ +int bi_compare(bigint *bia, bigint *bib) +{ + int r, i; + + check(bia); + check(bib); + + if (bia->size > bib->size) + r = 1; + else if (bia->size < bib->size) + r = -1; + else + { + comp *a = bia->comps; + comp *b = bib->comps; + + /* Same number of components. Compare starting from the high end + * and working down. */ + r = 0; + i = bia->size - 1; + + do + { + if (a[i] > b[i]) + { + r = 1; + break; + } + else if (a[i] < b[i]) + { + r = -1; + break; + } + } while (--i >= 0); + } + + return r; +} + +/* + * Allocate and zero more components. Does not consume bi. + */ +static void more_comps(bigint *bi, int n) +{ + if (n > bi->max_comps) + { + bi->max_comps = max(bi->max_comps * 2, n); + bi->comps = (comp*)realloc(bi->comps, bi->max_comps * COMP_BYTE_SIZE); + } + + if (n > bi->size) + { + memset(&bi->comps[bi->size], 0, (n-bi->size)*COMP_BYTE_SIZE); + } + + bi->size = n; +} + +/* + * Make a new empty bigint. It may just use an old one if one is available. + * Otherwise get one off the heap. + */ +static bigint *alloc(BI_CTX *ctx, int size) +{ + bigint *biR; + + /* Can we recycle an old bigint? */ + if (ctx->free_list != NULL) + { + biR = ctx->free_list; + ctx->free_list = biR->next; + ctx->free_count--; + + if (biR->refs != 0) + { +#ifdef CONFIG_SSL_FULL_MODE + printf("alloc: refs was not 0\n"); +#endif + abort(); /* create a stack trace from a core dump */ + } + + more_comps(biR, size); + } + else + { + /* No free bigints available - create a new one. */ + biR = (bigint *)malloc(sizeof(bigint)); + biR->comps = (comp*)malloc(size * COMP_BYTE_SIZE); + biR->max_comps = size; /* give some space to spare */ + } + + biR->size = size; + biR->refs = 1; + biR->next = NULL; + ctx->active_count++; + return biR; +} + +/* + * Work out the highest '1' bit in an exponent. Used when doing sliding-window + * exponentiation. + */ +static int find_max_exp_index(bigint *biexp) +{ + int i = COMP_BIT_SIZE-1; + comp shift = COMP_RADIX/2; + comp test = biexp->comps[biexp->size-1]; /* assume no leading zeroes */ + + check(biexp); + + do + { + if (test & shift) + { + return i+(biexp->size-1)*COMP_BIT_SIZE; + } + + shift >>= 1; + } while (i-- != 0); + + return -1; /* error - must have been a leading 0 */ +} + +/* + * Is a particular bit is an exponent 1 or 0? Used when doing sliding-window + * exponentiation. + */ +static int exp_bit_is_one(bigint *biexp, int offset) +{ + comp test = biexp->comps[offset / COMP_BIT_SIZE]; + int num_shifts = offset % COMP_BIT_SIZE; + comp shift = 1; + int i; + + check(biexp); + + for (i = 0; i < num_shifts; i++) + { + shift <<= 1; + } + + return (test & shift) != 0; +} + +#ifdef CONFIG_BIGINT_CHECK_ON +/* + * Perform a sanity check on bi. + */ +static void check(const bigint *bi) +{ + if (bi->refs <= 0) + { + printf("check: zero or negative refs in bigint\n"); + abort(); + } + + if (bi->next != NULL) + { + printf("check: attempt to use a bigint from " + "the free list\n"); + abort(); + } +} +#endif + +/* + * Delete any leading 0's (and allow for 0). + */ +static bigint *trim(bigint *bi) +{ + check(bi); + + while (bi->comps[bi->size-1] == 0 && bi->size > 1) + { + bi->size--; + } + + return bi; +} + +#if defined(CONFIG_BIGINT_MONTGOMERY) +/** + * @brief Perform a single montgomery reduction. + * @param ctx [in] The bigint session context. + * @param bixy [in] A bigint. + * @return The result of the montgomery reduction. + */ +bigint *bi_mont(BI_CTX *ctx, bigint *bixy) +{ + int i = 0, n; + uint8_t mod_offset = ctx->mod_offset; + bigint *bim = ctx->bi_mod[mod_offset]; + comp mod_inv = ctx->N0_dash[mod_offset]; + + check(bixy); + + if (ctx->use_classical) /* just use classical instead */ + { + return bi_mod(ctx, bixy); + } + + n = bim->size; + + do + { + bixy = bi_add(ctx, bixy, comp_left_shift( + bi_int_multiply(ctx, bim, bixy->comps[i]*mod_inv), i)); + } while (++i < n); + + comp_right_shift(bixy, n); + + if (bi_compare(bixy, bim) >= 0) + { + bixy = bi_subtract(ctx, bixy, bim, NULL); + } + + return bixy; +} + +#elif defined(CONFIG_BIGINT_BARRETT) +/* + * Stomp on the most significant components to give the illusion of a "mod base + * radix" operation + */ +static bigint *comp_mod(bigint *bi, int mod) +{ + check(bi); + + if (bi->size > mod) + { + bi->size = mod; + } + + return bi; +} + +/** + * @brief Perform a single Barrett reduction. + * @param ctx [in] The bigint session context. + * @param bi [in] A bigint. + * @return The result of the Barrett reduction. + */ +bigint *bi_barrett(BI_CTX *ctx, bigint *bi) +{ + bigint *q1, *q2, *q3, *r1, *r2, *r; + uint8_t mod_offset = ctx->mod_offset; + bigint *bim = ctx->bi_mod[mod_offset]; + int k = bim->size; + + check(bi); + check(bim); + + /* use Classical method instead - Barrett cannot help here */ + if (bi->size > k*2) + { + return bi_mod(ctx, bi); + } + + q1 = comp_right_shift(bi_clone(ctx, bi), k-1); + + /* do outer partial multiply */ + q2 = regular_multiply(ctx, q1, ctx->bi_mu[mod_offset], 0, k-1); + q3 = comp_right_shift(q2, k+1); + r1 = comp_mod(bi, k+1); + + /* do inner partial multiply */ + r2 = comp_mod(regular_multiply(ctx, q3, bim, k+1, 0), k+1); + r = bi_subtract(ctx, r1, r2, NULL); + + /* if (r >= m) r = r - m; */ + if (bi_compare(r, bim) >= 0) + { + r = bi_subtract(ctx, r, bim, NULL); + } + + return r; +} +#endif /* CONFIG_BIGINT_BARRETT */ + +#ifdef CONFIG_BIGINT_SLIDING_WINDOW +/* + * Work out g1, g3, g5, g7... etc for the sliding-window algorithm + */ +static void precompute_slide_window(BI_CTX *ctx, int window, bigint *g1) +{ + int k = 1, i; + bigint *g2; + + for (i = 0; i < window-1; i++) /* compute 2^(window-1) */ + { + k <<= 1; + } + + ctx->g = (bigint **)malloc(k*sizeof(bigint *)); + ctx->g[0] = bi_clone(ctx, g1); + bi_permanent(ctx->g[0]); + g2 = bi_residue(ctx, bi_square(ctx, ctx->g[0])); /* g^2 */ + + for (i = 1; i < k; i++) + { + ctx->g[i] = bi_residue(ctx, bi_multiply(ctx, ctx->g[i-1], bi_copy(g2))); + bi_permanent(ctx->g[i]); + } + + bi_free(ctx, g2); + ctx->window = k; +} +#endif + +/** + * @brief Perform a modular exponentiation. + * + * This function requires bi_set_mod() to have been called previously. This is + * one of the optimisations used for performance. + * @param ctx [in] The bigint session context. + * @param bi [in] The bigint on which to perform the mod power operation. + * @param biexp [in] The bigint exponent. + * @return The result of the mod exponentiation operation + * @see bi_set_mod(). + */ +bigint *bi_mod_power(BI_CTX *ctx, bigint *bi, bigint *biexp) +{ + int i = find_max_exp_index(biexp), j, window_size = 1; + bigint *biR = int_to_bi(ctx, 1); + +#if defined(CONFIG_BIGINT_MONTGOMERY) + uint8_t mod_offset = ctx->mod_offset; + if (!ctx->use_classical) + { + /* preconvert */ + bi = bi_mont(ctx, + bi_multiply(ctx, bi, ctx->bi_RR_mod_m[mod_offset])); /* x' */ + bi_free(ctx, biR); + biR = ctx->bi_R_mod_m[mod_offset]; /* A */ + } +#endif + + check(bi); + check(biexp); + +#ifdef CONFIG_BIGINT_SLIDING_WINDOW + for (j = i; j > 32; j /= 5) /* work out an optimum size */ + window_size++; + + /* work out the slide constants */ + precompute_slide_window(ctx, window_size, bi); +#else /* just one constant */ + ctx->g = (bigint **)malloc(sizeof(bigint *)); + ctx->g[0] = bi_clone(ctx, bi); + ctx->window = 1; + bi_permanent(ctx->g[0]); +#endif + + /* if sliding-window is off, then only one bit will be done at a time and + * will reduce to standard left-to-right exponentiation */ + do + { + if (exp_bit_is_one(biexp, i)) + { + int l = i-window_size+1; + int part_exp = 0; + + if (l < 0) /* LSB of exponent will always be 1 */ + l = 0; + else + { + while (exp_bit_is_one(biexp, l) == 0) + l++; /* go back up */ + } + + /* build up the section of the exponent */ + for (j = i; j >= l; j--) + { + biR = bi_residue(ctx, bi_square(ctx, biR)); + if (exp_bit_is_one(biexp, j)) + part_exp++; + + if (j != l) + part_exp <<= 1; + } + + part_exp = (part_exp-1)/2; /* adjust for array */ + biR = bi_residue(ctx, bi_multiply(ctx, biR, ctx->g[part_exp])); + i = l-1; + } + else /* square it */ + { + biR = bi_residue(ctx, bi_square(ctx, biR)); + i--; + } + } while (i >= 0); + + /* cleanup */ + for (i = 0; i < ctx->window; i++) + { + bi_depermanent(ctx->g[i]); + bi_free(ctx, ctx->g[i]); + } + + free(ctx->g); + bi_free(ctx, bi); + bi_free(ctx, biexp); +#if defined CONFIG_BIGINT_MONTGOMERY + return ctx->use_classical ? biR : bi_mont(ctx, biR); /* convert back */ +#else /* CONFIG_BIGINT_CLASSICAL or CONFIG_BIGINT_BARRETT */ + return biR; +#endif +} + +#ifdef CONFIG_SSL_CERT_VERIFICATION +/** + * @brief Perform a modular exponentiation using a temporary modulus. + * + * We need this function to check the signatures of certificates. The modulus + * of this function is temporary as it's just used for authentication. + * @param ctx [in] The bigint session context. + * @param bi [in] The bigint to perform the exp/mod. + * @param bim [in] The temporary modulus. + * @param biexp [in] The bigint exponent. + * @return The result of the mod exponentiation operation + * @see bi_set_mod(). + */ +bigint *bi_mod_power2(BI_CTX *ctx, bigint *bi, bigint *bim, bigint *biexp) +{ + bigint *biR, *tmp_biR; + + /* Set up a temporary bigint context and transfer what we need between + * them. We need to do this since we want to keep the original modulus + * which is already in this context. This operation is only called when + * doing peer verification, and so is not expensive :-) */ + BI_CTX *tmp_ctx = bi_initialize(); + bi_set_mod(tmp_ctx, bi_clone(tmp_ctx, bim), BIGINT_M_OFFSET); + tmp_biR = bi_mod_power(tmp_ctx, + bi_clone(tmp_ctx, bi), + bi_clone(tmp_ctx, biexp)); + biR = bi_clone(ctx, tmp_biR); + bi_free(tmp_ctx, tmp_biR); + bi_free_mod(tmp_ctx, BIGINT_M_OFFSET); + bi_terminate(tmp_ctx); + + bi_free(ctx, bi); + bi_free(ctx, bim); + bi_free(ctx, biexp); + return biR; +} +#endif + +#ifdef CONFIG_BIGINT_CRT +/** + * @brief Use the Chinese Remainder Theorem to quickly perform RSA decrypts. + * + * @param ctx [in] The bigint session context. + * @param bi [in] The bigint to perform the exp/mod. + * @param dP [in] CRT's dP bigint + * @param dQ [in] CRT's dQ bigint + * @param p [in] CRT's p bigint + * @param q [in] CRT's q bigint + * @param qInv [in] CRT's qInv bigint + * @return The result of the CRT operation + */ +bigint *bi_crt(BI_CTX *ctx, bigint *bi, + bigint *dP, bigint *dQ, + bigint *p, bigint *q, bigint *qInv) +{ + bigint *m1, *m2, *h; + + /* Montgomery has a condition the 0 < x, y < m and these products violate + * that condition. So disable Montgomery when using CRT */ +#if defined(CONFIG_BIGINT_MONTGOMERY) + ctx->use_classical = 1; +#endif + ctx->mod_offset = BIGINT_P_OFFSET; + m1 = bi_mod_power(ctx, bi_copy(bi), dP); + + ctx->mod_offset = BIGINT_Q_OFFSET; + m2 = bi_mod_power(ctx, bi, dQ); + + h = bi_subtract(ctx, bi_add(ctx, m1, p), bi_copy(m2), NULL); + h = bi_multiply(ctx, h, qInv); + ctx->mod_offset = BIGINT_P_OFFSET; + h = bi_residue(ctx, h); +#if defined(CONFIG_BIGINT_MONTGOMERY) + ctx->use_classical = 0; /* reset for any further operation */ +#endif + return bi_add(ctx, m2, bi_multiply(ctx, q, h)); +} +#endif +/** @} */ diff --git a/ccast/axTLS/bigint.h b/ccast/axTLS/bigint.h new file mode 100644 index 0000000..2966a3e --- /dev/null +++ b/ccast/axTLS/bigint.h @@ -0,0 +1,99 @@ +/* + * Copyright (c) 2007, Cameron Rich + * + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * * Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * * Neither the name of the axTLS project nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, + * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF + * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING + * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#ifndef BIGINT_HEADER +#define BIGINT_HEADER + +#include "crypto.h" + +BI_CTX *bi_initialize(void); +void bi_terminate(BI_CTX *ctx); +void bi_permanent(bigint *bi); +void bi_depermanent(bigint *bi); +void bi_clear_cache(BI_CTX *ctx); +void bi_free(BI_CTX *ctx, bigint *bi); +bigint *bi_copy(bigint *bi); +bigint *bi_clone(BI_CTX *ctx, const bigint *bi); +void bi_export(BI_CTX *ctx, bigint *bi, uint8_t *data, int size); +bigint *bi_import(BI_CTX *ctx, const uint8_t *data, int len); +bigint *int_to_bi(BI_CTX *ctx, comp i); + +/* the functions that actually do something interesting */ +bigint *bi_add(BI_CTX *ctx, bigint *bia, bigint *bib); +bigint *bi_subtract(BI_CTX *ctx, bigint *bia, + bigint *bib, int *is_negative); +bigint *bi_divide(BI_CTX *ctx, bigint *bia, bigint *bim, int is_mod); +bigint *bi_multiply(BI_CTX *ctx, bigint *bia, bigint *bib); +bigint *bi_mod_power(BI_CTX *ctx, bigint *bi, bigint *biexp); +bigint *bi_mod_power2(BI_CTX *ctx, bigint *bi, bigint *bim, bigint *biexp); +int bi_compare(bigint *bia, bigint *bib); +void bi_set_mod(BI_CTX *ctx, bigint *bim, int mod_offset); +void bi_free_mod(BI_CTX *ctx, int mod_offset); + +#ifdef CONFIG_SSL_FULL_MODE +void bi_print(const char *label, bigint *bi); +bigint *bi_str_import(BI_CTX *ctx, const char *data); +#endif + +/** + * @def bi_mod + * Find the residue of B. bi_set_mod() must be called before hand. + */ +#define bi_mod(A, B) bi_divide(A, B, ctx->bi_mod[ctx->mod_offset], 1) + +/** + * bi_residue() is technically the same as bi_mod(), but it uses the + * appropriate reduction technique (which is bi_mod() when doing classical + * reduction). + */ +#if defined(CONFIG_BIGINT_MONTGOMERY) +#define bi_residue(A, B) bi_mont(A, B) +bigint *bi_mont(BI_CTX *ctx, bigint *bixy); +#elif defined(CONFIG_BIGINT_BARRETT) +#define bi_residue(A, B) bi_barrett(A, B) +bigint *bi_barrett(BI_CTX *ctx, bigint *bi); +#else /* if defined(CONFIG_BIGINT_CLASSICAL) */ +#define bi_residue(A, B) bi_mod(A, B) +#endif + +#ifdef CONFIG_BIGINT_SQUARE +bigint *bi_square(BI_CTX *ctx, bigint *bi); +#else +#define bi_square(A, B) bi_multiply(A, bi_copy(B), B) +#endif + +#ifdef CONFIG_BIGINT_CRT +bigint *bi_crt(BI_CTX *ctx, bigint *bi, + bigint *dP, bigint *dQ, + bigint *p, bigint *q, + bigint *qInv); +#endif + +#endif diff --git a/ccast/axTLS/bigint_impl.h b/ccast/axTLS/bigint_impl.h new file mode 100644 index 0000000..820620d --- /dev/null +++ b/ccast/axTLS/bigint_impl.h @@ -0,0 +1,131 @@ +/* + * Copyright (c) 2007, Cameron Rich + * + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * * Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * * Neither the name of the axTLS project nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, + * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF + * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING + * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#ifndef BIGINT_IMPL_HEADER +#define BIGINT_IMPL_HEADER + +/* Maintain a number of precomputed variables when doing reduction */ +#define BIGINT_M_OFFSET 0 /**< Normal modulo offset. */ +#ifdef CONFIG_BIGINT_CRT +#define BIGINT_P_OFFSET 1 /**< p modulo offset. */ +#define BIGINT_Q_OFFSET 2 /**< q module offset. */ +#define BIGINT_NUM_MODS 3 /**< The number of modulus constants used. */ +#else +#define BIGINT_NUM_MODS 1 +#endif + +/* Architecture specific functions for big ints */ +#if defined(CONFIG_INTEGER_8BIT) +#define COMP_RADIX 256U /**< Max component + 1 */ +#define COMP_MAX 0xFFFFU/**< (Max dbl comp -1) */ +#define COMP_BIT_SIZE 8 /**< Number of bits in a component. */ +#define COMP_BYTE_SIZE 1 /**< Number of bytes in a component. */ +#define COMP_NUM_NIBBLES 2 /**< Used For diagnostics only. */ +typedef uint8_t comp; /**< A single precision component. */ +typedef uint16_t long_comp; /**< A double precision component. */ +typedef int16_t slong_comp; /**< A signed double precision component. */ +#elif defined(CONFIG_INTEGER_16BIT) +#define COMP_RADIX 65536U /**< Max component + 1 */ +#define COMP_MAX 0xFFFFFFFFU/**< (Max dbl comp -1) */ +#define COMP_BIT_SIZE 16 /**< Number of bits in a component. */ +#define COMP_BYTE_SIZE 2 /**< Number of bytes in a component. */ +#define COMP_NUM_NIBBLES 4 /**< Used For diagnostics only. */ +typedef uint16_t comp; /**< A single precision component. */ +typedef uint32_t long_comp; /**< A double precision component. */ +typedef int32_t slong_comp; /**< A signed double precision component. */ +#else /* regular 32 bit */ +#if defined(WIN32) && !defined(__GNUC__) +#define COMP_RADIX 4294967296i64 +#define COMP_MAX 0xFFFFFFFFFFFFFFFFui64 +#else +#define COMP_RADIX 4294967296ULL /**< Max component + 1 */ +#define COMP_MAX 0xFFFFFFFFFFFFFFFFULL/**< (Max dbl comp -1) */ +#endif +#define COMP_BIT_SIZE 32 /**< Number of bits in a component. */ +#define COMP_BYTE_SIZE 4 /**< Number of bytes in a component. */ +#define COMP_NUM_NIBBLES 8 /**< Used For diagnostics only. */ +typedef uint32_t comp; /**< A single precision component. */ +typedef uint64_t long_comp; /**< A double precision component. */ +typedef int64_t slong_comp; /**< A signed double precision component. */ +#endif + +/** + * @struct _bigint + * @brief A big integer basic object + */ +struct _bigint +{ + struct _bigint* next; /**< The next bigint in the cache. */ + short size; /**< The number of components in this bigint. */ + short max_comps; /**< The heapsize allocated for this bigint */ + int refs; /**< An internal reference count. */ + comp* comps; /**< A ptr to the actual component data */ +}; + +typedef struct _bigint bigint; /**< An alias for _bigint */ + +/** + * Maintains the state of the cache, and a number of variables used in + * reduction. + */ +typedef struct /**< A big integer "session" context. */ +{ + bigint *active_list; /**< Bigints currently used. */ + bigint *free_list; /**< Bigints not used. */ + bigint *bi_radix; /**< The radix used. */ + bigint *bi_mod[BIGINT_NUM_MODS]; /**< modulus */ + +#if defined(CONFIG_BIGINT_MONTGOMERY) + bigint *bi_RR_mod_m[BIGINT_NUM_MODS]; /**< R^2 mod m */ + bigint *bi_R_mod_m[BIGINT_NUM_MODS]; /**< R mod m */ + comp N0_dash[BIGINT_NUM_MODS]; +#elif defined(CONFIG_BIGINT_BARRETT) + bigint *bi_mu[BIGINT_NUM_MODS]; /**< Storage for mu */ +#endif + bigint *bi_normalised_mod[BIGINT_NUM_MODS]; /**< Normalised mod storage. */ + bigint **g; /**< Used by sliding-window. */ + int window; /**< The size of the sliding window */ + int active_count; /**< Number of active bigints. */ + int free_count; /**< Number of free bigints. */ + +#ifdef CONFIG_BIGINT_MONTGOMERY + uint8_t use_classical; /**< Use classical reduction. */ +#endif + uint8_t mod_offset; /**< The mod offset we are using */ +} BI_CTX; + +#ifndef WIN32 +#define max(a,b) ((a)>(b)?(a):(b)) /**< Find the maximum of 2 numbers. */ +#define min(a,b) ((a)<(b)?(a):(b)) /**< Find the minimum of 2 numbers. */ +#endif + +#define PERMANENT 0x7FFF55AA /**< A magic number for permanents. */ + +#endif diff --git a/ccast/axTLS/cert.h b/ccast/axTLS/cert.h new file mode 100644 index 0000000..30c7b65 --- /dev/null +++ b/ccast/axTLS/cert.h @@ -0,0 +1,43 @@ +unsigned char default_certificate[] = { + 0x30, 0x82, 0x01, 0xd7, 0x30, 0x82, 0x01, 0x40, 0x02, 0x09, 0x00, 0xab, + 0x08, 0x18, 0xa7, 0x03, 0x07, 0x27, 0xfd, 0x30, 0x0d, 0x06, 0x09, 0x2a, + 0x86, 0x48, 0x86, 0xf7, 0x0d, 0x01, 0x01, 0x05, 0x05, 0x00, 0x30, 0x34, + 0x31, 0x32, 0x30, 0x30, 0x06, 0x03, 0x55, 0x04, 0x0a, 0x13, 0x29, 0x61, + 0x78, 0x54, 0x4c, 0x53, 0x20, 0x50, 0x72, 0x6f, 0x6a, 0x65, 0x63, 0x74, + 0x20, 0x44, 0x6f, 0x64, 0x67, 0x79, 0x20, 0x43, 0x65, 0x72, 0x74, 0x69, + 0x66, 0x69, 0x63, 0x61, 0x74, 0x65, 0x20, 0x41, 0x75, 0x74, 0x68, 0x6f, + 0x72, 0x69, 0x74, 0x79, 0x30, 0x1e, 0x17, 0x0d, 0x31, 0x30, 0x31, 0x32, + 0x32, 0x36, 0x32, 0x32, 0x33, 0x33, 0x33, 0x39, 0x5a, 0x17, 0x0d, 0x32, + 0x34, 0x30, 0x39, 0x30, 0x33, 0x32, 0x32, 0x33, 0x33, 0x33, 0x39, 0x5a, + 0x30, 0x2c, 0x31, 0x16, 0x30, 0x14, 0x06, 0x03, 0x55, 0x04, 0x0a, 0x13, + 0x0d, 0x61, 0x78, 0x54, 0x4c, 0x53, 0x20, 0x50, 0x72, 0x6f, 0x6a, 0x65, + 0x63, 0x74, 0x31, 0x12, 0x30, 0x10, 0x06, 0x03, 0x55, 0x04, 0x03, 0x13, + 0x09, 0x31, 0x32, 0x37, 0x2e, 0x30, 0x2e, 0x30, 0x2e, 0x31, 0x30, 0x81, + 0x9f, 0x30, 0x0d, 0x06, 0x09, 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d, 0x01, + 0x01, 0x01, 0x05, 0x00, 0x03, 0x81, 0x8d, 0x00, 0x30, 0x81, 0x89, 0x02, + 0x81, 0x81, 0x00, 0xcd, 0xfd, 0x89, 0x48, 0xbe, 0x36, 0xb9, 0x95, 0x76, + 0xd4, 0x13, 0x30, 0x0e, 0xbf, 0xb2, 0xed, 0x67, 0x0a, 0xc0, 0x16, 0x3f, + 0x51, 0x09, 0x9d, 0x29, 0x2f, 0xb2, 0x6d, 0x3f, 0x3e, 0x6c, 0x2f, 0x90, + 0x80, 0xa1, 0x71, 0xdf, 0xbe, 0x38, 0xc5, 0xcb, 0xa9, 0x9a, 0x40, 0x14, + 0x90, 0x0a, 0xf9, 0xb7, 0x07, 0x0b, 0xe1, 0xda, 0xe7, 0x09, 0xbf, 0x0d, + 0x57, 0x41, 0x86, 0x60, 0xa1, 0xc1, 0x27, 0x91, 0x5b, 0x0a, 0x98, 0x46, + 0x1b, 0xf6, 0xa2, 0x84, 0xf8, 0x65, 0xc7, 0xce, 0x2d, 0x96, 0x17, 0xaa, + 0x91, 0xf8, 0x61, 0x04, 0x50, 0x70, 0xeb, 0xb4, 0x43, 0xb7, 0xdc, 0x9a, + 0xcc, 0x31, 0x01, 0x14, 0xd4, 0xcd, 0xcc, 0xc2, 0x37, 0x6d, 0x69, 0x82, + 0xd6, 0xc6, 0xc4, 0xbe, 0xf2, 0x34, 0xa5, 0xc9, 0xa6, 0x19, 0x53, 0x32, + 0x7a, 0x86, 0x0e, 0x91, 0x82, 0x0f, 0xa1, 0x42, 0x54, 0xaa, 0x01, 0x02, + 0x03, 0x01, 0x00, 0x01, 0x30, 0x0d, 0x06, 0x09, 0x2a, 0x86, 0x48, 0x86, + 0xf7, 0x0d, 0x01, 0x01, 0x05, 0x05, 0x00, 0x03, 0x81, 0x81, 0x00, 0x40, + 0xb4, 0x94, 0x9a, 0xa8, 0x89, 0x72, 0x1d, 0x07, 0xe5, 0xb3, 0x6b, 0x88, + 0x21, 0xc2, 0x38, 0x36, 0x9e, 0x7a, 0x8c, 0x49, 0x48, 0x68, 0x0c, 0x06, + 0xe8, 0xdb, 0x1f, 0x4e, 0x05, 0xe6, 0x31, 0xe3, 0xfd, 0xe6, 0x0d, 0x6b, + 0xd8, 0x13, 0x17, 0xe0, 0x2d, 0x0d, 0xb8, 0x7e, 0xcb, 0x20, 0x6c, 0xa8, + 0x73, 0xa7, 0xfd, 0xe3, 0xa7, 0xfa, 0xf3, 0x02, 0x60, 0x78, 0x1f, 0x13, + 0x40, 0x45, 0xee, 0x75, 0xf5, 0x10, 0xfd, 0x8f, 0x68, 0x74, 0xd4, 0xac, + 0xae, 0x04, 0x09, 0x55, 0x2c, 0xdb, 0xd8, 0x07, 0x07, 0x65, 0x69, 0x27, + 0x6e, 0xbf, 0x5e, 0x61, 0x40, 0x56, 0x8b, 0xd7, 0x33, 0x3b, 0xff, 0x6e, + 0x53, 0x7e, 0x9d, 0x3f, 0xc0, 0x40, 0x3a, 0xab, 0xa0, 0x50, 0x4e, 0x80, + 0x47, 0x46, 0x0d, 0x1e, 0xdb, 0x4c, 0xf1, 0x1b, 0x5d, 0x3c, 0x2a, 0x54, + 0xa7, 0x4d, 0xfa, 0x7b, 0x72, 0x66, 0xc5 +}; +unsigned int default_certificate_len = 475; diff --git a/ccast/axTLS/config.h b/ccast/axTLS/config.h new file mode 100644 index 0000000..ffda4e3 --- /dev/null +++ b/ccast/axTLS/config.h @@ -0,0 +1,41 @@ + +#ifdef NT +//# define CONFIG_WIN32_USE_CRYPTO_LIB +#endif + +//CONFIG_SSL_SERVER_ONLY +//CONFIG_SSL_CERT_VERIFICATION +#define CONFIG_SSL_ENABLE_CLIENT +//CONFIG_SSL_FULL_MODE +#define CONFIG_SSL_PROT_MEDIUM +#define CONFIG_SSL_USE_DEFAULT_KEY +#define CONFIG_SSL_PRIVATE_KEY_LOCATION "" +#define CONFIG_SSL_PRIVATE_KEY_PASSWORD "" +#define CONFIG_SSL_X509_CERT_LOCATION "" +//CONFIG_SSL_GENERATE_X509_CERT +//CONFIG_SSL_X509_COMMON_NAME="" +//CONFIG_SSL_X509_ORGANIZATION_NAME="" +//CONFIG_SSL_X509_ORGANIZATION_UNIT_NAME="" +//CONFIG_SSL_ENABLE_V23_HANDSHAKE +#define CONFIG_SSL_HAS_PEM +#define CONFIG_SSL_USE_PKCS12 +#define CONFIG_SSL_EXPIRY_TIME 24 +#define CONFIG_X509_MAX_CA_CERTS 4 +#define CONFIG_SSL_MAX_CERTS 2 +// CONFIG_SSL_CTX_MUTEXING +// CONFIG_USE_DEV_URANDOM +// CONFIG_OPENSSL_COMPATIBLE +// CONFIG_PERFORMANCE_TESTING +// CONFIG_SSL_TEST is not set + +// CONFIG_BIGINT_CLASSICAL +// CONFIG_BIGINT_MONTGOMERY +#define CONFIG_BIGINT_BARRETT +#define CONFIG_BIGINT_CRT +// CONFIG_BIGINT_KARATSUBA is not set +#define MUL_KARATSUBA_THRESH 0 +#define SQU_KARATSUBA_THRESH 0 +#define CONFIG_BIGINT_SLIDING_WINDOW +#define CONFIG_BIGINT_SQUARE +// CONFIG_BIGINT_CHECK_ON + diff --git a/ccast/axTLS/crypto.h b/ccast/axTLS/crypto.h new file mode 100644 index 0000000..8a314a3 --- /dev/null +++ b/ccast/axTLS/crypto.h @@ -0,0 +1,230 @@ +/* + * Copyright (c) 2007, Cameron Rich + * + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * * Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * * Neither the name of the axTLS project nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, + * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF + * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING + * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +/** + * @file crypto.h + */ + +#ifndef HEADER_CRYPTO_H +#define HEADER_CRYPTO_H + +#ifdef __cplusplus +extern "C" { +#endif + +#include "config.h" +#include "bigint_impl.h" +#include "bigint.h" + +#ifndef STDCALL +#define STDCALL +#endif +#ifndef EXP_FUNC +#define EXP_FUNC +#endif + + +/* enable features based on a 'super-set' capbaility. */ +#if defined(CONFIG_SSL_FULL_MODE) +#define CONFIG_SSL_ENABLE_CLIENT +#define CONFIG_SSL_CERT_VERIFICATION +#elif defined(CONFIG_SSL_ENABLE_CLIENT) +#define CONFIG_SSL_CERT_VERIFICATION +#endif + +/************************************************************************** + * AES declarations + **************************************************************************/ + +#define AES_MAXROUNDS 14 +#define AES_BLOCKSIZE 16 +#define AES_IV_SIZE 16 + +typedef struct aes_key_st +{ + uint16_t rounds; + uint16_t key_size; + uint32_t ks[(AES_MAXROUNDS+1)*8]; + uint8_t iv[AES_IV_SIZE]; +} AES_CTX; + +typedef enum +{ + AES_MODE_128, + AES_MODE_256 +} AES_MODE; + +void AES_set_key(AES_CTX *ctx, const uint8_t *key, + const uint8_t *iv, AES_MODE mode); +void AES_cbc_encrypt(AES_CTX *ctx, const uint8_t *msg, + uint8_t *out, int length); +void AES_cbc_decrypt(AES_CTX *ks, const uint8_t *in, uint8_t *out, int length); +void AES_convert_key(AES_CTX *ctx); + +/************************************************************************** + * RC4 declarations + **************************************************************************/ + +typedef struct +{ + uint8_t x, y, m[256]; +} RC4_CTX; + +void RC4_setup(RC4_CTX *s, const uint8_t *key, int length); +void RC4_crypt(RC4_CTX *s, const uint8_t *msg, uint8_t *data, int length); + +/************************************************************************** + * SHA1 declarations + **************************************************************************/ + +#define SHA1_SIZE 20 + +/* + * This structure will hold context information for the SHA-1 + * hashing operation + */ +typedef struct +{ + uint32_t Intermediate_Hash[SHA1_SIZE/4]; /* Message Digest */ + uint32_t Length_Low; /* Message length in bits */ + uint32_t Length_High; /* Message length in bits */ + uint16_t Message_Block_Index; /* Index into message block array */ + uint8_t Message_Block[64]; /* 512-bit message blocks */ +} SHA1_CTX; + +void SHA1_Init(SHA1_CTX *); +void SHA1_Update(SHA1_CTX *, const uint8_t * msg, int len); +void SHA1_Final(uint8_t *digest, SHA1_CTX *); + +/************************************************************************** + * MD2 declarations + **************************************************************************/ + +#define MD2_SIZE 16 + +typedef struct +{ + unsigned char cksum[16]; /* checksum of the data block */ + unsigned char state[48]; /* intermediate digest state */ + unsigned char buffer[16]; /* data block being processed */ + int left; /* amount of data in buffer */ +} MD2_CTX; + +EXP_FUNC void STDCALL MD2_Init(MD2_CTX *ctx); +EXP_FUNC void STDCALL MD2_Update(MD2_CTX *ctx, const uint8_t *input, int ilen); +EXP_FUNC void STDCALL MD2_Final(uint8_t *digest, MD2_CTX *ctx); + +/************************************************************************** + * MD5 declarations + **************************************************************************/ + +#define MD5_SIZE 16 + +typedef struct +{ + uint32_t state[4]; /* state (ABCD) */ + uint32_t count[2]; /* number of bits, modulo 2^64 (lsb first) */ + uint8_t buffer[64]; /* input buffer */ +} MD5_CTX; + +EXP_FUNC void STDCALL MD5_Init(MD5_CTX *); +EXP_FUNC void STDCALL MD5_Update(MD5_CTX *, const uint8_t *msg, int len); +EXP_FUNC void STDCALL MD5_Final(uint8_t *digest, MD5_CTX *); + +/************************************************************************** + * HMAC declarations + **************************************************************************/ +void hmac_md5(const uint8_t *msg, int length, const uint8_t *key, + int key_len, uint8_t *digest); +void hmac_sha1(const uint8_t *msg, int length, const uint8_t *key, + int key_len, uint8_t *digest); + +/************************************************************************** + * RSA declarations + **************************************************************************/ + +typedef struct +{ + bigint *m; /* modulus */ + bigint *e; /* public exponent */ + bigint *d; /* private exponent */ +#ifdef CONFIG_BIGINT_CRT + bigint *p; /* p as in m = pq */ + bigint *q; /* q as in m = pq */ + bigint *dP; /* d mod (p-1) */ + bigint *dQ; /* d mod (q-1) */ + bigint *qInv; /* q^-1 mod p */ +#endif + int num_octets; + BI_CTX *bi_ctx; +} RSA_CTX; + +void RSA_priv_key_new(RSA_CTX **rsa_ctx, + const uint8_t *modulus, int mod_len, + const uint8_t *pub_exp, int pub_len, + const uint8_t *priv_exp, int priv_len +#ifdef CONFIG_BIGINT_CRT + , const uint8_t *p, int p_len, + const uint8_t *q, int q_len, + const uint8_t *dP, int dP_len, + const uint8_t *dQ, int dQ_len, + const uint8_t *qInv, int qInv_len +#endif + ); +void RSA_pub_key_new(RSA_CTX **rsa_ctx, + const uint8_t *modulus, int mod_len, + const uint8_t *pub_exp, int pub_len); +void RSA_free(RSA_CTX *ctx); +int RSA_decrypt(const RSA_CTX *ctx, const uint8_t *in_data, uint8_t *out_data, + int is_decryption); +bigint *RSA_private(const RSA_CTX *c, bigint *bi_msg); +#if defined(CONFIG_SSL_CERT_VERIFICATION) || defined(CONFIG_SSL_GENERATE_X509_CERT) +bigint *RSA_sign_verify(BI_CTX *ctx, const uint8_t *sig, int sig_len, + bigint *modulus, bigint *pub_exp); +bigint *RSA_public(const RSA_CTX * c, bigint *bi_msg); +int RSA_encrypt(const RSA_CTX *ctx, const uint8_t *in_data, uint16_t in_len, + uint8_t *out_data, int is_signing); +void RSA_print(const RSA_CTX *ctx); +#endif + +/************************************************************************** + * RNG declarations + **************************************************************************/ +EXP_FUNC void STDCALL RNG_initialize(void); +EXP_FUNC void STDCALL RNG_custom_init(const uint8_t *seed_buf, int size); +EXP_FUNC void STDCALL RNG_terminate(void); +EXP_FUNC void STDCALL get_random(int num_rand_bytes, uint8_t *rand_data); +void get_random_NZ(int num_rand_bytes, uint8_t *rand_data); + +#ifdef __cplusplus +} +#endif + +#endif diff --git a/ccast/axTLS/crypto_misc.c b/ccast/axTLS/crypto_misc.c new file mode 100644 index 0000000..f43fd04 --- /dev/null +++ b/ccast/axTLS/crypto_misc.c @@ -0,0 +1,367 @@ +/* + * Copyright (c) 2007, Cameron Rich + * + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * * Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * * Neither the name of the axTLS project nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, + * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF + * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING + * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +/** + * Some misc. routines to help things out + */ + +#include +#include +#include +#include +#include "os_port.h" +#include "crypto_misc.h" +#ifdef CONFIG_WIN32_USE_CRYPTO_LIB +#include "wincrypt.h" +#endif + +#ifndef WIN32 +static int rng_fd = -1; +#elif defined(CONFIG_WIN32_USE_CRYPTO_LIB) +static HCRYPTPROV gCryptProv; +#endif + +#if (!defined(CONFIG_USE_DEV_URANDOM) && !defined(CONFIG_WIN32_USE_CRYPTO_LIB)) +/* change to processor registers as appropriate */ +#define ENTROPY_POOL_SIZE 32 +#define ENTROPY_COUNTER1 ((((uint64_t)tv.tv_sec)<<32) | tv.tv_usec) +#define ENTROPY_COUNTER2 rand() +static uint8_t entropy_pool[ENTROPY_POOL_SIZE]; +#endif + +const char * const unsupported_str = "Error: Feature not supported"; + +#ifndef CONFIG_SSL_SKELETON_MODE +/** + * Retrieve a file and put it into memory + * @return The size of the file, or -1 on failure. + */ +int get_file(const char *filename, uint8_t **buf) +{ + int total_bytes = 0; + int bytes_read = 0; + int filesize; + FILE *stream = fopen(filename, "rb"); + + if (stream == NULL) + { +#ifdef CONFIG_SSL_FULL_MODE + printf("file '%s' does not exist\n", filename); TTY_FLUSH(); +#endif + return -1; + } + + /* Win CE doesn't support stat() */ + fseek(stream, 0, SEEK_END); + filesize = ftell(stream); + *buf = (uint8_t *)malloc(filesize); + fseek(stream, 0, SEEK_SET); + + do + { + bytes_read = fread(*buf+total_bytes, 1, filesize-total_bytes, stream); + total_bytes += bytes_read; + } while (total_bytes < filesize && bytes_read > 0); + + fclose(stream); + return filesize; +} +#endif + +/** + * Initialise the Random Number Generator engine. + * - On Win32 use the platform SDK's crypto engine. + * - On Linux use /dev/urandom + * - If none of these work then use a custom RNG. + */ +EXP_FUNC void STDCALL RNG_initialize() +{ +#if !defined(WIN32) && defined(CONFIG_USE_DEV_URANDOM) + rng_fd = ax_open("/dev/urandom", O_RDONLY); +#elif defined(WIN32) && defined(CONFIG_WIN32_USE_CRYPTO_LIB) + if (!CryptAcquireContext(&gCryptProv, + NULL, NULL, PROV_RSA_FULL, 0)) + { + if (GetLastError() == NTE_BAD_KEYSET && + !CryptAcquireContext(&gCryptProv, + NULL, + NULL, + PROV_RSA_FULL, + CRYPT_NEWKEYSET)) + { + printf("CryptoLib: %x\n", GetLastError()); + exit(1); + } + } +#else + /* start of with a stack to copy across */ + int i = 0; + memcpy(entropy_pool, &i, ENTROPY_POOL_SIZE); + srand((unsigned int)(size_t)&i); +#endif +} + +/** + * If no /dev/urandom, then initialise the RNG with something interesting. + */ +EXP_FUNC void STDCALL RNG_custom_init(const uint8_t *seed_buf, int size) +{ +#if defined(WIN32) || defined(CONFIG_WIN32_USE_CRYPTO_LIB) + int i; + + for (i = 0; i < ENTROPY_POOL_SIZE && i < size; i++) + entropy_pool[i] ^= seed_buf[i]; +#endif +} + +/** + * Terminate the RNG engine. + */ +EXP_FUNC void STDCALL RNG_terminate(void) +{ +#ifndef WIN32 + close(rng_fd); +#elif defined(CONFIG_WIN32_USE_CRYPTO_LIB) + CryptReleaseContext(gCryptProv, 0); +#endif +} + +/** + * Set a series of bytes with a random number. Individual bytes can be 0 + */ +EXP_FUNC void STDCALL get_random(int num_rand_bytes, uint8_t *rand_data) +{ +#if !defined(WIN32) && defined(CONFIG_USE_DEV_URANDOM) + /* use the Linux default */ + read(rng_fd, rand_data, num_rand_bytes); /* read from /dev/urandom */ +#elif defined(WIN32) && defined(CONFIG_WIN32_USE_CRYPTO_LIB) + /* use Microsoft Crypto Libraries */ + CryptGenRandom(gCryptProv, num_rand_bytes, rand_data); +#else /* nothing else to use, so use a custom RNG */ + /* The method we use when we've got nothing better. Use RC4, time + and a couple of random seeds to generate a random sequence */ + RC4_CTX rng_ctx; + struct timeval tv; + MD5_CTX rng_digest_ctx; + uint8_t digest[MD5_SIZE]; + uint64_t *ep; + int i; + + /* A proper implementation would use counters etc for entropy */ + gettimeofday(&tv, NULL); + ep = (uint64_t *)entropy_pool; + ep[0] ^= ENTROPY_COUNTER1; + ep[1] ^= ENTROPY_COUNTER2; + + /* use a digested version of the entropy pool as a key */ + MD5_Init(&rng_digest_ctx); + MD5_Update(&rng_digest_ctx, entropy_pool, ENTROPY_POOL_SIZE); + MD5_Final(digest, &rng_digest_ctx); + + /* come up with the random sequence */ + RC4_setup(&rng_ctx, digest, MD5_SIZE); /* use as a key */ + memcpy(rand_data, entropy_pool, num_rand_bytes < ENTROPY_POOL_SIZE ? + num_rand_bytes : ENTROPY_POOL_SIZE); + RC4_crypt(&rng_ctx, rand_data, rand_data, num_rand_bytes); + + /* move things along */ + for (i = ENTROPY_POOL_SIZE-1; i >= MD5_SIZE ; i--) + entropy_pool[i] = entropy_pool[i-MD5_SIZE]; + + /* insert the digest at the start of the entropy pool */ + memcpy(entropy_pool, digest, MD5_SIZE); +#endif +} + +/** + * Set a series of bytes with a random number. Individual bytes are not zero. + */ +void get_random_NZ(int num_rand_bytes, uint8_t *rand_data) +{ + int i; + get_random(num_rand_bytes, rand_data); + + for (i = 0; i < num_rand_bytes; i++) + { + while (rand_data[i] == 0) /* can't be 0 */ + rand_data[i] = (uint8_t)(rand()); + } +} + +/** + * Some useful diagnostic routines + */ +#if defined(CONFIG_SSL_FULL_MODE) || defined(CONFIG_DEBUG) +int hex_finish; +int hex_index; + +static void print_hex_init(int finish) +{ + hex_finish = finish; + hex_index = 0; +} + +static void print_hex(uint8_t hex) +{ + static int column; + + if (hex_index == 0) + { + column = 0; + } + + printf("%02x ", hex); + if (++column == 8) + { + printf(": "); + } + else if (column >= 16) + { + printf("\n"); + column = 0; + } + + if (++hex_index >= hex_finish && column > 0) + { + printf("\n"); + } +} + +/** + * Spit out a blob of data for diagnostics. The data is is a nice column format + * for easy reading. + * + * @param format [in] The string (with possible embedded format characters) + * @param size [in] The number of numbers to print + * @param data [in] The start of data to use + * @param ... [in] Any additional arguments + */ +EXP_FUNC void STDCALL print_blob(const char *format, + const uint8_t *data, int size, ...) +{ + int i; + char tmp[80]; + va_list(ap); + + va_start(ap, size); + sprintf(tmp, "%s\n", format); + vprintf(tmp, ap); + print_hex_init(size); + for (i = 0; i < size; i++) + { + print_hex(data[i]); + } + + va_end(ap); + TTY_FLUSH(); +} +#elif defined(WIN32) +/* VC6.0 doesn't handle variadic macros */ +EXP_FUNC void STDCALL print_blob(const char *format, const uint8_t *data, + int size, ...) {} +#endif + +#if defined(CONFIG_SSL_HAS_PEM) || defined(CONFIG_HTTP_HAS_AUTHORIZATION) +/* base64 to binary lookup table */ +static const uint8_t map[128] = +{ + 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, + 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, + 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, + 255, 255, 255, 255, 255, 255, 255, 62, 255, 255, 255, 63, + 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 255, 255, + 255, 254, 255, 255, 255, 0, 1, 2, 3, 4, 5, 6, + 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, + 19, 20, 21, 22, 23, 24, 25, 255, 255, 255, 255, 255, + 255, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, + 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, + 49, 50, 51, 255, 255, 255, 255, 255 +}; + +EXP_FUNC int STDCALL base64_decode(const char *in, int len, + uint8_t *out, int *outlen) +{ + int g, t, x, y, z; + uint8_t c; + int ret = -1; + + g = 3; + for (x = y = z = t = 0; x < len; x++) + { + if ((c = map[in[x]&0x7F]) == 0xff) + continue; + + if (c == 254) /* this is the end... */ + { + c = 0; + + if (--g < 0) + goto error; + } + else if (g != 3) /* only allow = at end */ + goto error; + + t = (t<<6) | c; + + if (++y == 4) + { + out[z++] = (uint8_t)((t>>16)&255); + + if (g > 1) + out[z++] = (uint8_t)((t>>8)&255); + + if (g > 2) + out[z++] = (uint8_t)(t&255); + + y = t = 0; + } + + /* check that we don't go past the output buffer */ + if (z > *outlen) + goto error; + } + + if (y != 0) + goto error; + + *outlen = z; + ret = 0; + +error: +#ifdef CONFIG_SSL_FULL_MODE + if (ret < 0) + printf("Error: Invalid base64\n"); TTY_FLUSH(); +#endif + TTY_FLUSH(); + return ret; + +} +#endif + diff --git a/ccast/axTLS/crypto_misc.h b/ccast/axTLS/crypto_misc.h new file mode 100644 index 0000000..acb5c73 --- /dev/null +++ b/ccast/axTLS/crypto_misc.h @@ -0,0 +1,172 @@ +/* + * Copyright (c) 2007, Cameron Rich + * + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * * Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * * Neither the name of the axTLS project nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, + * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF + * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING + * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +*/ + +/** + * @file crypto_misc.h + */ + +#ifndef HEADER_CRYPTO_MISC_H +#define HEADER_CRYPTO_MISC_H + +#ifdef __cplusplus +extern "C" { +#endif + +#include "crypto.h" +#include "bigint.h" + +/************************************************************************** + * X509 declarations + **************************************************************************/ +#define X509_OK 0 +#define X509_NOT_OK -1 +#define X509_VFY_ERROR_NO_TRUSTED_CERT -2 +#define X509_VFY_ERROR_BAD_SIGNATURE -3 +#define X509_VFY_ERROR_NOT_YET_VALID -4 +#define X509_VFY_ERROR_EXPIRED -5 +#define X509_VFY_ERROR_SELF_SIGNED -6 +#define X509_VFY_ERROR_INVALID_CHAIN -7 +#define X509_VFY_ERROR_UNSUPPORTED_DIGEST -8 +#define X509_INVALID_PRIV_KEY -9 + +/* + * The Distinguished Name + */ +#define X509_NUM_DN_TYPES 3 +#define X509_COMMON_NAME 0 +#define X509_ORGANIZATION 1 +#define X509_ORGANIZATIONAL_UNIT 2 + +struct _x509_ctx +{ + char *ca_cert_dn[X509_NUM_DN_TYPES]; + char *cert_dn[X509_NUM_DN_TYPES]; + char **subject_alt_dnsnames; + time_t not_before; + time_t not_after; + uint8_t *signature; + uint16_t sig_len; + uint8_t sig_type; + RSA_CTX *rsa_ctx; + bigint *digest; + struct _x509_ctx *next; +}; + +typedef struct _x509_ctx X509_CTX; + +#ifdef CONFIG_SSL_CERT_VERIFICATION +typedef struct +{ + X509_CTX *cert[CONFIG_X509_MAX_CA_CERTS]; +} CA_CERT_CTX; +#endif + +int x509_new(const uint8_t *cert, int *len, X509_CTX **ctx); +void x509_free(X509_CTX *x509_ctx); +#ifdef CONFIG_SSL_CERT_VERIFICATION +int x509_verify(const CA_CERT_CTX *ca_cert_ctx, const X509_CTX *cert); +#endif +#ifdef CONFIG_SSL_FULL_MODE +void x509_print(const X509_CTX *cert, CA_CERT_CTX *ca_cert_ctx); +#endif +const char * x509_display_error(int error); + +/************************************************************************** + * ASN1 declarations + **************************************************************************/ +#define ASN1_INTEGER 0x02 +#define ASN1_BIT_STRING 0x03 +#define ASN1_OCTET_STRING 0x04 +#define ASN1_NULL 0x05 +#define ASN1_PRINTABLE_STR2 0x0C +#define ASN1_OID 0x06 +#define ASN1_PRINTABLE_STR2 0x0C +#define ASN1_PRINTABLE_STR 0x13 +#define ASN1_TELETEX_STR 0x14 +#define ASN1_IA5_STR 0x16 +#define ASN1_UTC_TIME 0x17 +#define ASN1_UNICODE_STR 0x1e +#define ASN1_SEQUENCE 0x30 +#define ASN1_CONTEXT_DNSNAME 0x82 +#define ASN1_SET 0x31 +#define ASN1_V3_DATA 0xa3 +#define ASN1_IMPLICIT_TAG 0x80 +#define ASN1_CONTEXT_DNSNAME 0x82 +#define ASN1_EXPLICIT_TAG 0xa0 +#define ASN1_V3_DATA 0xa3 + +#define SIG_TYPE_MD2 0x02 +#define SIG_TYPE_MD5 0x04 +#define SIG_TYPE_SHA1 0x05 + +int get_asn1_length(const uint8_t *buf, int *offset); +int asn1_get_private_key(const uint8_t *buf, int len, RSA_CTX **rsa_ctx); +int asn1_next_obj(const uint8_t *buf, int *offset, int obj_type); +int asn1_skip_obj(const uint8_t *buf, int *offset, int obj_type); +int asn1_get_int(const uint8_t *buf, int *offset, uint8_t **object); +int asn1_version(const uint8_t *cert, int *offset, X509_CTX *x509_ctx); +int asn1_validity(const uint8_t *cert, int *offset, X509_CTX *x509_ctx); +int asn1_name(const uint8_t *cert, int *offset, char *dn[]); +int asn1_public_key(const uint8_t *cert, int *offset, X509_CTX *x509_ctx); +#ifdef CONFIG_SSL_CERT_VERIFICATION +int asn1_signature(const uint8_t *cert, int *offset, X509_CTX *x509_ctx); +int asn1_find_subjectaltname(const uint8_t* cert, int offset); +int asn1_compare_dn(char * const dn1[], char * const dn2[]); +#endif /* CONFIG_SSL_CERT_VERIFICATION */ +int asn1_signature_type(const uint8_t *cert, + int *offset, X509_CTX *x509_ctx); + +/************************************************************************** + * MISC declarations + **************************************************************************/ +#define SALT_SIZE 8 + +extern const char * const unsupported_str; + +typedef void (*crypt_func)(void *, const uint8_t *, uint8_t *, int); +typedef void (*hmac_func)(const uint8_t *msg, int length, const uint8_t *key, + int key_len, uint8_t *digest); + +int get_file(const char *filename, uint8_t **buf); + +#if defined(CONFIG_SSL_FULL_MODE) || defined(WIN32) || defined(CONFIG_DEBUG) +EXP_FUNC void STDCALL print_blob(const char *format, const uint8_t *data, int size, ...); +#else + #define print_blob(...) +#endif + +EXP_FUNC int STDCALL base64_decode(const char *in, int len, + uint8_t *out, int *outlen); + +#ifdef __cplusplus +} +#endif + +#endif diff --git a/ccast/axTLS/gen_cert.c b/ccast/axTLS/gen_cert.c new file mode 100644 index 0000000..d5cb4d5 --- /dev/null +++ b/ccast/axTLS/gen_cert.c @@ -0,0 +1,368 @@ +/* + * Copyright (c) 2007, Cameron Rich + * + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * * Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * * Neither the name of the axTLS project nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, + * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF + * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING + * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include "config.h" + +#ifdef CONFIG_SSL_GENERATE_X509_CERT +#include +#include +#include "os_port.h" +#include "ssl.h" + +/** + * Generate a basic X.509 certificate + */ + +static uint8_t set_gen_length(int len, uint8_t *buf, int *offset) +{ + if (len < 0x80) /* short form */ + { + buf[(*offset)++] = len; + return 1; + } + else /* long form */ + { + int i, length_bytes = 0; + + if (len & 0x00FF0000) + length_bytes = 3; + else if (len & 0x0000FF00) + length_bytes = 2; + else if (len & 0x000000FF) + length_bytes = 1; + + buf[(*offset)++] = 0x80 + length_bytes; + + for (i = length_bytes-1; i >= 0; i--) + { + buf[*offset+i] = len & 0xFF; + len >>= 8; + } + + *offset += length_bytes; + return length_bytes+1; + } +} + +static int pre_adjust_with_size(uint8_t type, + int *seq_offset, uint8_t *buf, int *offset) +{ + buf[(*offset)++] = type; + *seq_offset = *offset; + *offset += 4; /* fill in later */ + return *offset; +} + +static void adjust_with_size(int seq_size, int seq_start, + uint8_t *buf, int *offset) +{ + uint8_t seq_byte_size; + int orig_seq_size = seq_size; + int orig_seq_start = seq_start; + + seq_size = *offset-seq_size; + seq_byte_size = set_gen_length(seq_size, buf, &seq_start); + + if (seq_byte_size != 4) + { + memmove(&buf[orig_seq_start+seq_byte_size], + &buf[orig_seq_size], seq_size); + *offset -= 4-seq_byte_size; + } +} + +static void gen_serial_number(uint8_t *buf, int *offset) +{ + static const uint8_t ser_oid[] = { ASN1_INTEGER, 1, 0x7F }; + memcpy(&buf[*offset], ser_oid , sizeof(ser_oid)); + *offset += sizeof(ser_oid); +} + +static void gen_signature_alg(uint8_t *buf, int *offset) +{ + /* OBJECT IDENTIFIER sha1withRSAEncryption (1 2 840 113549 1 1 5) */ + static const uint8_t sig_oid[] = + { + ASN1_SEQUENCE, 0x0d, ASN1_OID, 0x09, + 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d, 0x01, 0x01, 0x05, + ASN1_NULL, 0x00 + }; + + memcpy(&buf[*offset], sig_oid, sizeof(sig_oid)); + *offset += sizeof(sig_oid); +} + +static int gen_dn(const char *name, uint8_t dn_type, + uint8_t *buf, int *offset) +{ + int ret = X509_OK; + int name_size = strlen(name); + + if (name_size > 0x70) /* just too big */ + { + ret = X509_NOT_OK; + goto error; + } + + buf[(*offset)++] = ASN1_SET; + set_gen_length(9+name_size, buf, offset); + buf[(*offset)++] = ASN1_SEQUENCE; + set_gen_length(7+name_size, buf, offset); + buf[(*offset)++] = ASN1_OID; + buf[(*offset)++] = 3; + buf[(*offset)++] = 0x55; + buf[(*offset)++] = 0x04; + buf[(*offset)++] = dn_type; + buf[(*offset)++] = ASN1_PRINTABLE_STR; + buf[(*offset)++] = name_size; + strcpy(&buf[*offset], name); + *offset += name_size; + +error: + return ret; +} + +static int gen_issuer(const char * dn[], uint8_t *buf, int *offset) +{ + int ret = X509_OK; + int seq_offset; + int seq_size = pre_adjust_with_size( + ASN1_SEQUENCE, &seq_offset, buf, offset); + char fqdn[128]; + + /* we need the common name, so if not configured, work out the fully + * qualified domain name */ + if (dn[X509_COMMON_NAME] == NULL || strlen(dn[X509_COMMON_NAME]) == 0) + { + int fqdn_len; + gethostname(fqdn, sizeof(fqdn)); + fqdn_len = strlen(fqdn); + fqdn[fqdn_len++] = '.'; + getdomainname(&fqdn[fqdn_len], sizeof(fqdn)-fqdn_len); + fqdn_len = strlen(fqdn); + + if (fqdn[fqdn_len-1] == '.') /* ensure '.' is not last char */ + fqdn[fqdn_len-1] = 0; + + dn[X509_COMMON_NAME] = fqdn; + } + + if ((ret = gen_dn(dn[X509_COMMON_NAME], 3, buf, offset))) + goto error; + + if (dn[X509_ORGANIZATION] != NULL && strlen(dn[X509_ORGANIZATION]) > 0) + { + if ((ret = gen_dn(dn[X509_ORGANIZATION], 10, buf, offset))) + goto error; + } + + if (dn[X509_ORGANIZATIONAL_UNIT] != NULL && + strlen(dn[X509_ORGANIZATIONAL_UNIT]) > 0) + { + if ((ret = gen_dn(dn[X509_ORGANIZATIONAL_UNIT], 11, buf, offset))) + goto error; + } + + adjust_with_size(seq_size, seq_offset, buf, offset); + +error: + return ret; +} + +static void gen_utc_time(uint8_t *buf, int *offset) +{ + static const uint8_t time_seq[] = + { + ASN1_SEQUENCE, 30, + ASN1_UTC_TIME, 13, + '0', '7', '0', '1', '0', '1', '0', '0', '0', '0', '0', '0', 'Z', + ASN1_UTC_TIME, 13, /* make it good for 30 or so years */ + '3', '8', '0', '1', '0', '1', '0', '0', '0', '0', '0', '0', 'Z' + }; + + /* fixed time */ + memcpy(&buf[*offset], time_seq, sizeof(time_seq)); + *offset += sizeof(time_seq); +} + +static void gen_pub_key2(const RSA_CTX *rsa_ctx, uint8_t *buf, int *offset) +{ + static const uint8_t pub_key_seq[] = + { + ASN1_INTEGER, 0x03, 0x01, 0x00, 0x01 /* INTEGER 65537 */ + }; + + int seq_offset; + int pub_key_size = rsa_ctx->num_octets; + uint8_t *block = (uint8_t *)malloc(pub_key_size); + int seq_size = pre_adjust_with_size( + ASN1_SEQUENCE, &seq_offset, buf, offset); + buf[(*offset)++] = ASN1_INTEGER; + bi_export(rsa_ctx->bi_ctx, rsa_ctx->m, block, pub_key_size); + + if (*block & 0x80) /* make integer positive */ + { + set_gen_length(pub_key_size+1, buf, offset); + buf[(*offset)++] = 0; + } + else + set_gen_length(pub_key_size, buf, offset); + + memcpy(&buf[*offset], block, pub_key_size); + *offset += pub_key_size; + memcpy(&buf[*offset], pub_key_seq, sizeof(pub_key_seq)); + *offset += sizeof(pub_key_seq); + adjust_with_size(seq_size, seq_offset, buf, offset); + free(block); +} + +static void gen_pub_key1(const RSA_CTX *rsa_ctx, uint8_t *buf, int *offset) +{ + int seq_offset; + int seq_size = pre_adjust_with_size( + ASN1_BIT_STRING, &seq_offset, buf, offset); + buf[(*offset)++] = 0; /* bit string is multiple of 8 */ + gen_pub_key2(rsa_ctx, buf, offset); + adjust_with_size(seq_size, seq_offset, buf, offset); +} + +static void gen_pub_key(const RSA_CTX *rsa_ctx, uint8_t *buf, int *offset) +{ + /* OBJECT IDENTIFIER rsaEncryption (1 2 840 113549 1 1 1) */ + static const uint8_t rsa_enc_oid[] = + { + ASN1_SEQUENCE, 0x0d, ASN1_OID, 0x09, + 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d, 0x01, 0x01, 0x01, + ASN1_NULL, 0x00 + }; + + int seq_offset; + int seq_size = pre_adjust_with_size( + ASN1_SEQUENCE, &seq_offset, buf, offset); + + memcpy(&buf[*offset], rsa_enc_oid, sizeof(rsa_enc_oid)); + *offset += sizeof(rsa_enc_oid); + gen_pub_key1(rsa_ctx, buf, offset); + adjust_with_size(seq_size, seq_offset, buf, offset); +} + +static void gen_signature(const RSA_CTX *rsa_ctx, const uint8_t *sha_dgst, + uint8_t *buf, int *offset) +{ + static const uint8_t asn1_sig[] = + { + ASN1_SEQUENCE, 0x21, ASN1_SEQUENCE, 0x09, ASN1_OID, 0x05, + 0x2b, 0x0e, 0x03, 0x02, 0x1a, /* sha1 (1 3 14 3 2 26) */ + ASN1_NULL, 0x00, ASN1_OCTET_STRING, 0x14 + }; + + uint8_t *enc_block = (uint8_t *)malloc(rsa_ctx->num_octets); + uint8_t *block = (uint8_t *)malloc(sizeof(asn1_sig) + SHA1_SIZE); + int sig_size; + + /* add the digest as an embedded asn.1 sequence */ + memcpy(block, asn1_sig, sizeof(asn1_sig)); + memcpy(&block[sizeof(asn1_sig)], sha_dgst, SHA1_SIZE); + + sig_size = RSA_encrypt(rsa_ctx, block, + sizeof(asn1_sig) + SHA1_SIZE, enc_block, 1); + + buf[(*offset)++] = ASN1_BIT_STRING; + set_gen_length(sig_size+1, buf, offset); + buf[(*offset)++] = 0; /* bit string is multiple of 8 */ + memcpy(&buf[*offset], enc_block, sig_size); + *offset += sig_size; + free(block); + free(enc_block); +} + +static int gen_tbs_cert(const char * dn[], + const RSA_CTX *rsa_ctx, uint8_t *buf, int *offset, + uint8_t *sha_dgst) +{ + int ret = X509_OK; + SHA1_CTX sha_ctx; + int seq_offset; + int begin_tbs = *offset; + int seq_size = pre_adjust_with_size( + ASN1_SEQUENCE, &seq_offset, buf, offset); + + gen_serial_number(buf, offset); + gen_signature_alg(buf, offset); + + /* CA certicate issuer */ + if ((ret = gen_issuer(dn, buf, offset))) + goto error; + + gen_utc_time(buf, offset); + + /* certificate issuer */ + if ((ret = gen_issuer(dn, buf, offset))) + goto error; + + gen_pub_key(rsa_ctx, buf, offset); + adjust_with_size(seq_size, seq_offset, buf, offset); + + SHA1_Init(&sha_ctx); + SHA1_Update(&sha_ctx, &buf[begin_tbs], *offset-begin_tbs); + SHA1_Final(sha_dgst, &sha_ctx); + +error: + return ret; +} + +/** + * Create a new certificate. + */ +EXP_FUNC int STDCALL ssl_x509_create(SSL_CTX *ssl_ctx, uint32_t options, const char * dn[], uint8_t **cert_data) +{ + int ret = X509_OK, offset = 0, seq_offset; + /* allocate enough space to load a new certificate */ + uint8_t *buf = (uint8_t *)malloc(ssl_ctx->rsa_ctx->num_octets*2 + 512); + uint8_t sha_dgst[SHA1_SIZE]; + int seq_size = pre_adjust_with_size(ASN1_SEQUENCE, + &seq_offset, buf, &offset); + + if ((ret = gen_tbs_cert(dn, ssl_ctx->rsa_ctx, buf, &offset, sha_dgst)) < 0) + goto error; + + gen_signature_alg(buf, &offset); + gen_signature(ssl_ctx->rsa_ctx, sha_dgst, buf, &offset); + adjust_with_size(seq_size, seq_offset, buf, &offset); + *cert_data = (uint8_t *)malloc(offset); /* create the exact memory for it */ + memcpy(*cert_data, buf, offset); + +error: + free(buf); + return ret < 0 ? ret : offset; +} + +#endif + diff --git a/ccast/axTLS/hmac.c b/ccast/axTLS/hmac.c new file mode 100644 index 0000000..24a04d7 --- /dev/null +++ b/ccast/axTLS/hmac.c @@ -0,0 +1,105 @@ +/* + * Copyright (c) 2007, Cameron Rich + * + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * * Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * * Neither the name of the axTLS project nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, + * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF + * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING + * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +/** + * HMAC implementation - This code was originally taken from RFC2104 + * See http://www.ietf.org/rfc/rfc2104.txt and + * http://www.faqs.org/rfcs/rfc2202.html + */ + +#include +#include "os_port.h" +#include "crypto.h" + +/** + * Perform HMAC-MD5 + * NOTE: does not handle keys larger than the block size. + */ +void hmac_md5(const uint8_t *msg, int length, const uint8_t *key, + int key_len, uint8_t *digest) +{ + MD5_CTX context; + uint8_t k_ipad[64]; + uint8_t k_opad[64]; + int i; + + memset(k_ipad, 0, sizeof k_ipad); + memset(k_opad, 0, sizeof k_opad); + memcpy(k_ipad, key, key_len); + memcpy(k_opad, key, key_len); + + for (i = 0; i < 64; i++) + { + k_ipad[i] ^= 0x36; + k_opad[i] ^= 0x5c; + } + + MD5_Init(&context); + MD5_Update(&context, k_ipad, 64); + MD5_Update(&context, msg, length); + MD5_Final(digest, &context); + MD5_Init(&context); + MD5_Update(&context, k_opad, 64); + MD5_Update(&context, digest, MD5_SIZE); + MD5_Final(digest, &context); +} + +/** + * Perform HMAC-SHA1 + * NOTE: does not handle keys larger than the block size. + */ +void hmac_sha1(const uint8_t *msg, int length, const uint8_t *key, + int key_len, uint8_t *digest) +{ + SHA1_CTX context; + uint8_t k_ipad[64]; + uint8_t k_opad[64]; + int i; + + memset(k_ipad, 0, sizeof k_ipad); + memset(k_opad, 0, sizeof k_opad); + memcpy(k_ipad, key, key_len); + memcpy(k_opad, key, key_len); + + for (i = 0; i < 64; i++) + { + k_ipad[i] ^= 0x36; + k_opad[i] ^= 0x5c; + } + + SHA1_Init(&context); + SHA1_Update(&context, k_ipad, 64); + SHA1_Update(&context, msg, length); + SHA1_Final(digest, &context); + SHA1_Init(&context); + SHA1_Update(&context, k_opad, 64); + SHA1_Update(&context, digest, SHA1_SIZE); + SHA1_Final(digest, &context); +} diff --git a/ccast/axTLS/loader.c b/ccast/axTLS/loader.c new file mode 100644 index 0000000..92167be --- /dev/null +++ b/ccast/axTLS/loader.c @@ -0,0 +1,483 @@ +/* + * Copyright (c) 2007, Cameron Rich + * + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * * Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * * Neither the name of the axTLS project nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, + * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF + * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING + * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +/** + * Load certificates/keys into memory. These can be in many different formats. + * PEM support and other formats can be processed here. + * + * The PEM private keys may be optionally encrypted with AES128 or AES256. + * The encrypted PEM keys were generated with something like: + * + * openssl genrsa -aes128 -passout pass:abcd -out axTLS.key_aes128.pem 512 + */ + +#include +#include +#include +#include "os_port.h" +#include "ssl.h" + +static int do_obj(SSL_CTX *ssl_ctx, int obj_type, + SSLObjLoader *ssl_obj, const char *password); +#ifdef CONFIG_SSL_HAS_PEM +static int ssl_obj_PEM_load(SSL_CTX *ssl_ctx, int obj_type, + SSLObjLoader *ssl_obj, const char *password); +#endif + +/* + * Load a file into memory that is in binary DER (or ascii PEM) format. + */ +EXP_FUNC int STDCALL ssl_obj_load(SSL_CTX *ssl_ctx, int obj_type, + const char *filename, const char *password) +{ +#ifndef CONFIG_SSL_SKELETON_MODE + static const char * const begin = "-----BEGIN"; + int ret = SSL_OK; + SSLObjLoader *ssl_obj = NULL; + + if (filename == NULL) + { + ret = SSL_ERROR_INVALID_KEY; + goto error; + } + + ssl_obj = (SSLObjLoader *)calloc(1, sizeof(SSLObjLoader)); + ssl_obj->len = get_file(filename, &ssl_obj->buf); + if (ssl_obj->len <= 0) + { + ret = SSL_ERROR_INVALID_KEY; + goto error; + } + + /* is the file a PEM file? */ + if (strstr((char *)ssl_obj->buf, begin) != NULL) + { +#ifdef CONFIG_SSL_HAS_PEM + ret = ssl_obj_PEM_load(ssl_ctx, obj_type, ssl_obj, password); +#else + puts(unsupported_str); + ret = SSL_ERROR_NOT_SUPPORTED; +#endif + } + else + ret = do_obj(ssl_ctx, obj_type, ssl_obj, password); + +error: + ssl_obj_free(ssl_obj); + return ret; +#else + puts(unsupported_str); + return SSL_ERROR_NOT_SUPPORTED; +#endif /* CONFIG_SSL_SKELETON_MODE */ +} + +/* + * Transfer binary data into the object loader. + */ +EXP_FUNC int STDCALL ssl_obj_memory_load(SSL_CTX *ssl_ctx, int mem_type, + const uint8_t *data, int len, const char *password) +{ + int ret; + SSLObjLoader *ssl_obj; + + ssl_obj = (SSLObjLoader *)calloc(1, sizeof(SSLObjLoader)); + ssl_obj->buf = (uint8_t *)malloc(len); + memcpy(ssl_obj->buf, data, len); + ssl_obj->len = len; + ret = do_obj(ssl_ctx, mem_type, ssl_obj, password); + ssl_obj_free(ssl_obj); + return ret; +} + +/* + * Actually work out what we are doing + */ +static int do_obj(SSL_CTX *ssl_ctx, int obj_type, + SSLObjLoader *ssl_obj, const char *password) +{ + int ret = SSL_OK; + + switch (obj_type) + { + case SSL_OBJ_RSA_KEY: + ret = add_private_key(ssl_ctx, ssl_obj); + break; + + case SSL_OBJ_X509_CERT: + ret = add_cert(ssl_ctx, ssl_obj->buf, ssl_obj->len); + break; + +#ifdef CONFIG_SSL_CERT_VERIFICATION + case SSL_OBJ_X509_CACERT: + add_cert_auth(ssl_ctx, ssl_obj->buf, ssl_obj->len); + break; +#endif + +#ifdef CONFIG_SSL_USE_PKCS12 + case SSL_OBJ_PKCS8: + ret = pkcs8_decode(ssl_ctx, ssl_obj, password); + break; + + case SSL_OBJ_PKCS12: + ret = pkcs12_decode(ssl_ctx, ssl_obj, password); + break; +#endif + default: + puts(unsupported_str); + ret = SSL_ERROR_NOT_SUPPORTED; + break; + } + + return ret; +} + +/* + * Clean up our mess. + */ +void ssl_obj_free(SSLObjLoader *ssl_obj) +{ + if (ssl_obj) + { + free(ssl_obj->buf); + free(ssl_obj); + } +} + +/* + * Support for PEM encoded keys/certificates. + */ +#ifdef CONFIG_SSL_HAS_PEM + +#define NUM_PEM_TYPES 4 +#define IV_SIZE 16 +#define IS_RSA_PRIVATE_KEY 0 +#define IS_ENCRYPTED_PRIVATE_KEY 1 +#define IS_PRIVATE_KEY 2 +#define IS_CERTIFICATE 3 + +static const char * const begins[NUM_PEM_TYPES] = +{ + "-----BEGIN RSA PRIVATE KEY-----", + "-----BEGIN ENCRYPTED PRIVATE KEY-----", + "-----BEGIN PRIVATE KEY-----", + "-----BEGIN CERTIFICATE-----", +}; + +static const char * const ends[NUM_PEM_TYPES] = +{ + "-----END RSA PRIVATE KEY-----", + "-----END ENCRYPTED PRIVATE KEY-----", + "-----END PRIVATE KEY-----", + "-----END CERTIFICATE-----", +}; + +static const char * const aes_str[2] = +{ + "DEK-Info: AES-128-CBC,", + "DEK-Info: AES-256-CBC," +}; + +/** + * Take a base64 blob of data and decrypt it (using AES) into its + * proper ASN.1 form. + */ +static int pem_decrypt(const char *where, const char *end, + const char *password, SSLObjLoader *ssl_obj) +{ + int ret = -1; + int is_aes_256 = 0; + char *start = NULL; + uint8_t iv[IV_SIZE]; + int i, pem_size; + MD5_CTX md5_ctx; + AES_CTX aes_ctx; + uint8_t key[32]; /* AES256 size */ + + if (password == NULL || strlen(password) == 0) + { +#ifdef CONFIG_SSL_FULL_MODE + printf("Error: Need a password for this PEM file\n"); TTY_FLUSH(); +#endif + goto error; + } + + if ((start = strstr((const char *)where, aes_str[0]))) /* AES128? */ + { + start += strlen(aes_str[0]); + } + else if ((start = strstr((const char *)where, aes_str[1]))) /* AES256? */ + { + is_aes_256 = 1; + start += strlen(aes_str[1]); + } + else + { +#ifdef CONFIG_SSL_FULL_MODE + printf("Error: Unsupported password cipher\n"); TTY_FLUSH(); +#endif + goto error; + } + + /* convert from hex to binary - assumes uppercase hex */ + for (i = 0; i < IV_SIZE; i++) + { + char c = *start++ - '0'; + iv[i] = (c > 9 ? c + '0' - 'A' + 10 : c) << 4; + c = *start++ - '0'; + iv[i] += (c > 9 ? c + '0' - 'A' + 10 : c); + } + + while (*start == '\r' || *start == '\n') + start++; + + /* turn base64 into binary */ + pem_size = (int)(end-start); + if (base64_decode(start, pem_size, ssl_obj->buf, &ssl_obj->len) != 0) + goto error; + + /* work out the key */ + MD5_Init(&md5_ctx); + MD5_Update(&md5_ctx, (const uint8_t *)password, strlen(password)); + MD5_Update(&md5_ctx, iv, SALT_SIZE); + MD5_Final(key, &md5_ctx); + + if (is_aes_256) + { + MD5_Init(&md5_ctx); + MD5_Update(&md5_ctx, key, MD5_SIZE); + MD5_Update(&md5_ctx, (const uint8_t *)password, strlen(password)); + MD5_Update(&md5_ctx, iv, SALT_SIZE); + MD5_Final(&key[MD5_SIZE], &md5_ctx); + } + + /* decrypt using the key/iv */ + AES_set_key(&aes_ctx, key, iv, is_aes_256 ? AES_MODE_256 : AES_MODE_128); + AES_convert_key(&aes_ctx); + AES_cbc_decrypt(&aes_ctx, ssl_obj->buf, ssl_obj->buf, ssl_obj->len); + ret = 0; + +error: + return ret; +} + +/** + * Take a base64 blob of data and turn it into its proper ASN.1 form. + */ +static int new_pem_obj(SSL_CTX *ssl_ctx, int is_cacert, char *where, + int remain, const char *password) +{ + int ret = SSL_ERROR_BAD_CERTIFICATE; + SSLObjLoader *ssl_obj = NULL; + + while (remain > 0) + { + int i, pem_size, obj_type; + char *start = NULL, *end = NULL; + + for (i = 0; i < NUM_PEM_TYPES; i++) + { + if ((start = strstr(where, begins[i])) && + (end = strstr(where, ends[i]))) + { + remain -= (int)(end-where); + start += strlen(begins[i]); + pem_size = (int)(end-start); + + ssl_obj = (SSLObjLoader *)calloc(1, sizeof(SSLObjLoader)); + + /* 4/3 bigger than what we need but so what */ + ssl_obj->buf = (uint8_t *)calloc(1, pem_size); + ssl_obj->len = pem_size; + + if (i == IS_RSA_PRIVATE_KEY && + strstr(start, "Proc-Type:") && + strstr(start, "4,ENCRYPTED")) + { + /* check for encrypted PEM file */ + if (pem_decrypt(start, end, password, ssl_obj) < 0) + { + ret = SSL_ERROR_BAD_CERTIFICATE; + goto error; + } + } + else + { + ssl_obj->len = pem_size; + if (base64_decode(start, pem_size, + ssl_obj->buf, &ssl_obj->len) != 0) + { + ret = SSL_ERROR_BAD_CERTIFICATE; + goto error; + } + } + + switch (i) + { + case IS_RSA_PRIVATE_KEY: + obj_type = SSL_OBJ_RSA_KEY; + break; + + case IS_ENCRYPTED_PRIVATE_KEY: + case IS_PRIVATE_KEY: + obj_type = SSL_OBJ_PKCS8; + break; + + case IS_CERTIFICATE: + obj_type = is_cacert ? + SSL_OBJ_X509_CACERT : SSL_OBJ_X509_CERT; + break; + + default: + ret = SSL_ERROR_BAD_CERTIFICATE; + goto error; + } + + /* In a format we can now understand - so process it */ + if ((ret = do_obj(ssl_ctx, obj_type, ssl_obj, password))) + goto error; + + end += strlen(ends[i]); + remain -= strlen(ends[i]); + while (remain > 0 && (*end == '\r' || *end == '\n')) + { + end++; + remain--; + } + + where = end; + break; + } + } + + ssl_obj_free(ssl_obj); + ssl_obj = NULL; + if (start == NULL) + break; + } +error: + ssl_obj_free(ssl_obj); + return ret; +} + +/* + * Load a file into memory that is in ASCII PEM format. + */ +static int ssl_obj_PEM_load(SSL_CTX *ssl_ctx, int obj_type, + SSLObjLoader *ssl_obj, const char *password) +{ + char *start; + + /* add a null terminator */ + ssl_obj->len++; + ssl_obj->buf = (uint8_t *)realloc(ssl_obj->buf, ssl_obj->len); + ssl_obj->buf[ssl_obj->len-1] = 0; + start = (char *)ssl_obj->buf; + return new_pem_obj(ssl_ctx, obj_type == SSL_OBJ_X509_CACERT, + start, ssl_obj->len, password); +} +#endif /* CONFIG_SSL_HAS_PEM */ + +/** + * Load the key/certificates in memory depending on compile-time and user + * options. + */ +int load_key_certs(SSL_CTX *ssl_ctx) +{ + int ret = SSL_OK; + uint32_t options = ssl_ctx->options; +#ifdef CONFIG_SSL_GENERATE_X509_CERT + uint8_t *cert_data = NULL; + int cert_size; + static const char *dn[] = + { + CONFIG_SSL_X509_COMMON_NAME, + CONFIG_SSL_X509_ORGANIZATION_NAME, + CONFIG_SSL_X509_ORGANIZATION_UNIT_NAME + }; +#endif + + /* do the private key first */ + if (strlen(CONFIG_SSL_PRIVATE_KEY_LOCATION) > 0) + { + if ((ret = ssl_obj_load(ssl_ctx, SSL_OBJ_RSA_KEY, + CONFIG_SSL_PRIVATE_KEY_LOCATION, + CONFIG_SSL_PRIVATE_KEY_PASSWORD)) < 0) + goto error; + } + else if (!(options & SSL_NO_DEFAULT_KEY)) + { +#if defined(CONFIG_SSL_USE_DEFAULT_KEY) || defined(CONFIG_SSL_SKELETON_MODE) + static const /* saves a few more bytes */ +#include "private_key.h" + + ssl_obj_memory_load(ssl_ctx, SSL_OBJ_RSA_KEY, default_private_key, + default_private_key_len, NULL); +#endif + } + + /* now load the certificate */ +#ifdef CONFIG_SSL_GENERATE_X509_CERT + if ((cert_size = ssl_x509_create(ssl_ctx, 0, dn, &cert_data)) < 0) + { + ret = cert_size; + goto error; + } + + ssl_obj_memory_load(ssl_ctx, SSL_OBJ_X509_CERT, cert_data, cert_size, NULL); + free(cert_data); +#else + if (strlen(CONFIG_SSL_X509_CERT_LOCATION)) + { + if ((ret = ssl_obj_load(ssl_ctx, SSL_OBJ_X509_CERT, + CONFIG_SSL_X509_CERT_LOCATION, NULL)) < 0) + goto error; + } + else if (!(options & SSL_NO_DEFAULT_KEY)) + { +#if defined(CONFIG_SSL_USE_DEFAULT_KEY) || defined(CONFIG_SSL_SKELETON_MODE) + static const /* saves a few bytes and RAM */ +#include "cert.h" + ssl_obj_memory_load(ssl_ctx, SSL_OBJ_X509_CERT, + default_certificate, default_certificate_len, NULL); +#endif + } +#endif + +error: +#ifdef CONFIG_SSL_FULL_MODE + if (ret) + { + printf("Error: Certificate or key not loaded\n"); TTY_FLUSH(); + } +#endif + + return ret; + +} diff --git a/ccast/axTLS/md2.c b/ccast/axTLS/md2.c new file mode 100644 index 0000000..dee909a --- /dev/null +++ b/ccast/axTLS/md2.c @@ -0,0 +1,162 @@ +/* + * Copyright (c) 2007, Cameron Rich + * + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * * Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * * Neither the name of the axTLS project nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, + * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF + * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING + * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +/* + * RFC 1115/1319 compliant MD2 implementation + * The MD2 algorithm was designed by Ron Rivest in 1989. + * + * http://www.ietf.org/rfc/rfc1115.txt + * http://www.ietf.org/rfc/rfc1319.txt + */ + +#include +#include +#include "os_port.h" +#include "crypto.h" + +/** + * This code is only here to enable the verification of Verisign root + * certificates. So only enable it for verification mode. + */ +#ifdef CONFIG_SSL_CERT_VERIFICATION + +static const uint8_t PI_SUBST[256] = +{ + 0x29, 0x2E, 0x43, 0xC9, 0xA2, 0xD8, 0x7C, 0x01, 0x3D, 0x36, + 0x54, 0xA1, 0xEC, 0xF0, 0x06, 0x13, 0x62, 0xA7, 0x05, 0xF3, + 0xC0, 0xC7, 0x73, 0x8C, 0x98, 0x93, 0x2B, 0xD9, 0xBC, 0x4C, + 0x82, 0xCA, 0x1E, 0x9B, 0x57, 0x3C, 0xFD, 0xD4, 0xE0, 0x16, + 0x67, 0x42, 0x6F, 0x18, 0x8A, 0x17, 0xE5, 0x12, 0xBE, 0x4E, + 0xC4, 0xD6, 0xDA, 0x9E, 0xDE, 0x49, 0xA0, 0xFB, 0xF5, 0x8E, + 0xBB, 0x2F, 0xEE, 0x7A, 0xA9, 0x68, 0x79, 0x91, 0x15, 0xB2, + 0x07, 0x3F, 0x94, 0xC2, 0x10, 0x89, 0x0B, 0x22, 0x5F, 0x21, + 0x80, 0x7F, 0x5D, 0x9A, 0x5A, 0x90, 0x32, 0x27, 0x35, 0x3E, + 0xCC, 0xE7, 0xBF, 0xF7, 0x97, 0x03, 0xFF, 0x19, 0x30, 0xB3, + 0x48, 0xA5, 0xB5, 0xD1, 0xD7, 0x5E, 0x92, 0x2A, 0xAC, 0x56, + 0xAA, 0xC6, 0x4F, 0xB8, 0x38, 0xD2, 0x96, 0xA4, 0x7D, 0xB6, + 0x76, 0xFC, 0x6B, 0xE2, 0x9C, 0x74, 0x04, 0xF1, 0x45, 0x9D, + 0x70, 0x59, 0x64, 0x71, 0x87, 0x20, 0x86, 0x5B, 0xCF, 0x65, + 0xE6, 0x2D, 0xA8, 0x02, 0x1B, 0x60, 0x25, 0xAD, 0xAE, 0xB0, + 0xB9, 0xF6, 0x1C, 0x46, 0x61, 0x69, 0x34, 0x40, 0x7E, 0x0F, + 0x55, 0x47, 0xA3, 0x23, 0xDD, 0x51, 0xAF, 0x3A, 0xC3, 0x5C, + 0xF9, 0xCE, 0xBA, 0xC5, 0xEA, 0x26, 0x2C, 0x53, 0x0D, 0x6E, + 0x85, 0x28, 0x84, 0x09, 0xD3, 0xDF, 0xCD, 0xF4, 0x41, 0x81, + 0x4D, 0x52, 0x6A, 0xDC, 0x37, 0xC8, 0x6C, 0xC1, 0xAB, 0xFA, + 0x24, 0xE1, 0x7B, 0x08, 0x0C, 0xBD, 0xB1, 0x4A, 0x78, 0x88, + 0x95, 0x8B, 0xE3, 0x63, 0xE8, 0x6D, 0xE9, 0xCB, 0xD5, 0xFE, + 0x3B, 0x00, 0x1D, 0x39, 0xF2, 0xEF, 0xB7, 0x0E, 0x66, 0x58, + 0xD0, 0xE4, 0xA6, 0x77, 0x72, 0xF8, 0xEB, 0x75, 0x4B, 0x0A, + 0x31, 0x44, 0x50, 0xB4, 0x8F, 0xED, 0x1F, 0x1A, 0xDB, 0x99, + 0x8D, 0x33, 0x9F, 0x11, 0x83, 0x14 +}; + +/* + * MD2 context setup + */ +EXP_FUNC void STDCALL MD2_Init(MD2_CTX *ctx) +{ + memset(ctx, 0, sizeof *ctx); +} + +static void md2_process(MD2_CTX *ctx) +{ + int i, j; + uint8_t t = 0; + + for (i = 0; i < 16; i++) + { + ctx->state[i + 16] = ctx->buffer[i]; + ctx->state[i + 32] = ctx->buffer[i] ^ ctx->state[i]; + } + + for (i = 0; i < 18; i++) + { + for (j = 0; j < 48; j++) + t = (ctx->state[j] ^= PI_SUBST[t]); + + t = (t + i) & 0xFF; + } + + t = ctx->cksum[15]; + + for (i = 0; i < 16; i++) + t = (ctx->cksum[i] ^= PI_SUBST[ctx->buffer[i] ^ t]); +} + +/* + * MD2 process buffer + */ +EXP_FUNC void STDCALL MD2_Update(MD2_CTX *ctx, const uint8_t *input, int ilen) +{ + int fill; + + while (ilen > 0) + { + if (ctx->left + ilen > 16) + fill = 16 - ctx->left; + else + fill = ilen; + + memcpy(ctx->buffer + ctx->left, input, fill); + + ctx->left += fill; + input += fill; + ilen -= fill; + + if (ctx->left == 16) + { + ctx->left = 0; + md2_process(ctx); + } + } +} + +/* + * MD2 final digest + */ +EXP_FUNC void STDCALL MD2_Final(uint8_t *output, MD2_CTX *ctx) +{ + int i; + uint8_t x; + + x = (uint8_t)(16 - ctx->left); + + for (i = ctx->left; i < 16; i++) + ctx->buffer[i] = x; + + md2_process(ctx); + + memcpy(ctx->buffer, ctx->cksum, 16); + md2_process(ctx); + + memcpy(output, ctx->state, 16); +} + +#endif diff --git a/ccast/axTLS/md5.c b/ccast/axTLS/md5.c new file mode 100644 index 0000000..7f50713 --- /dev/null +++ b/ccast/axTLS/md5.c @@ -0,0 +1,294 @@ +/* + * Copyright (c) 2007, Cameron Rich + * + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * * Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * * Neither the name of the axTLS project nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, + * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF + * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING + * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +/** + * This file implements the MD5 algorithm as defined in RFC1321 + */ + +#include +#include "os_port.h" +#include "crypto.h" + +/* Constants for MD5Transform routine. + */ +#define S11 7 +#define S12 12 +#define S13 17 +#define S14 22 +#define S21 5 +#define S22 9 +#define S23 14 +#define S24 20 +#define S31 4 +#define S32 11 +#define S33 16 +#define S34 23 +#define S41 6 +#define S42 10 +#define S43 15 +#define S44 21 + +/* ----- static functions ----- */ +static void MD5Transform(uint32_t state[4], const uint8_t block[64]); +static void Encode(uint8_t *output, uint32_t *input, uint32_t len); +static void Decode(uint32_t *output, const uint8_t *input, uint32_t len); + +static const uint8_t PADDING[64] = +{ + 0x80, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 +}; + +/* F, G, H and I are basic MD5 functions. + */ +#define F(x, y, z) (((x) & (y)) | ((~x) & (z))) +#define G(x, y, z) (((x) & (z)) | ((y) & (~z))) +#define H(x, y, z) ((x) ^ (y) ^ (z)) +#define I(x, y, z) ((y) ^ ((x) | (~z))) + +/* ROTATE_LEFT rotates x left n bits. */ +#define ROTATE_LEFT(x, n) (((x) << (n)) | ((x) >> (32-(n)))) + +/* FF, GG, HH, and II transformations for rounds 1, 2, 3, and 4. + Rotation is separate from addition to prevent recomputation. */ +#define FF(a, b, c, d, x, s, ac) { \ + (a) += F ((b), (c), (d)) + (x) + (uint32_t)(ac); \ + (a) = ROTATE_LEFT ((a), (s)); \ + (a) += (b); \ + } +#define GG(a, b, c, d, x, s, ac) { \ + (a) += G ((b), (c), (d)) + (x) + (uint32_t)(ac); \ + (a) = ROTATE_LEFT ((a), (s)); \ + (a) += (b); \ + } +#define HH(a, b, c, d, x, s, ac) { \ + (a) += H ((b), (c), (d)) + (x) + (uint32_t)(ac); \ + (a) = ROTATE_LEFT ((a), (s)); \ + (a) += (b); \ + } +#define II(a, b, c, d, x, s, ac) { \ + (a) += I ((b), (c), (d)) + (x) + (uint32_t)(ac); \ + (a) = ROTATE_LEFT ((a), (s)); \ + (a) += (b); \ + } + +/** + * MD5 initialization - begins an MD5 operation, writing a new ctx. + */ +EXP_FUNC void STDCALL MD5_Init(MD5_CTX *ctx) +{ + ctx->count[0] = ctx->count[1] = 0; + + /* Load magic initialization constants. + */ + ctx->state[0] = 0x67452301; + ctx->state[1] = 0xefcdab89; + ctx->state[2] = 0x98badcfe; + ctx->state[3] = 0x10325476; +} + +/** + * Accepts an array of octets as the next portion of the message. + */ +EXP_FUNC void STDCALL MD5_Update(MD5_CTX *ctx, const uint8_t * msg, int len) +{ + uint32_t x; + int i, partLen; + + /* Compute number of bytes mod 64 */ + x = (uint32_t)((ctx->count[0] >> 3) & 0x3F); + + /* Update number of bits */ + if ((ctx->count[0] += ((uint32_t)len << 3)) < ((uint32_t)len << 3)) + ctx->count[1]++; + ctx->count[1] += ((uint32_t)len >> 29); + + partLen = 64 - x; + + /* Transform as many times as possible. */ + if (len >= partLen) + { + memcpy(&ctx->buffer[x], msg, partLen); + MD5Transform(ctx->state, ctx->buffer); + + for (i = partLen; i + 63 < len; i += 64) + MD5Transform(ctx->state, &msg[i]); + + x = 0; + } + else + i = 0; + + /* Buffer remaining input */ + memcpy(&ctx->buffer[x], &msg[i], len-i); +} + +/** + * Return the 128-bit message digest into the user's array + */ +EXP_FUNC void STDCALL MD5_Final(uint8_t *digest, MD5_CTX *ctx) +{ + uint8_t bits[8]; + uint32_t x, padLen; + + /* Save number of bits */ + Encode(bits, ctx->count, 8); + + /* Pad out to 56 mod 64. + */ + x = (uint32_t)((ctx->count[0] >> 3) & 0x3f); + padLen = (x < 56) ? (56 - x) : (120 - x); + MD5_Update(ctx, PADDING, padLen); + + /* Append length (before padding) */ + MD5_Update(ctx, bits, 8); + + /* Store state in digest */ + Encode(digest, ctx->state, MD5_SIZE); +} + +/** + * MD5 basic transformation. Transforms state based on block. + */ +static void MD5Transform(uint32_t state[4], const uint8_t block[64]) +{ + uint32_t a = state[0], b = state[1], c = state[2], + d = state[3], x[MD5_SIZE]; + + Decode(x, block, 64); + + /* Round 1 */ + FF (a, b, c, d, x[ 0], S11, 0xd76aa478); /* 1 */ + FF (d, a, b, c, x[ 1], S12, 0xe8c7b756); /* 2 */ + FF (c, d, a, b, x[ 2], S13, 0x242070db); /* 3 */ + FF (b, c, d, a, x[ 3], S14, 0xc1bdceee); /* 4 */ + FF (a, b, c, d, x[ 4], S11, 0xf57c0faf); /* 5 */ + FF (d, a, b, c, x[ 5], S12, 0x4787c62a); /* 6 */ + FF (c, d, a, b, x[ 6], S13, 0xa8304613); /* 7 */ + FF (b, c, d, a, x[ 7], S14, 0xfd469501); /* 8 */ + FF (a, b, c, d, x[ 8], S11, 0x698098d8); /* 9 */ + FF (d, a, b, c, x[ 9], S12, 0x8b44f7af); /* 10 */ + FF (c, d, a, b, x[10], S13, 0xffff5bb1); /* 11 */ + FF (b, c, d, a, x[11], S14, 0x895cd7be); /* 12 */ + FF (a, b, c, d, x[12], S11, 0x6b901122); /* 13 */ + FF (d, a, b, c, x[13], S12, 0xfd987193); /* 14 */ + FF (c, d, a, b, x[14], S13, 0xa679438e); /* 15 */ + FF (b, c, d, a, x[15], S14, 0x49b40821); /* 16 */ + + /* Round 2 */ + GG (a, b, c, d, x[ 1], S21, 0xf61e2562); /* 17 */ + GG (d, a, b, c, x[ 6], S22, 0xc040b340); /* 18 */ + GG (c, d, a, b, x[11], S23, 0x265e5a51); /* 19 */ + GG (b, c, d, a, x[ 0], S24, 0xe9b6c7aa); /* 20 */ + GG (a, b, c, d, x[ 5], S21, 0xd62f105d); /* 21 */ + GG (d, a, b, c, x[10], S22, 0x2441453); /* 22 */ + GG (c, d, a, b, x[15], S23, 0xd8a1e681); /* 23 */ + GG (b, c, d, a, x[ 4], S24, 0xe7d3fbc8); /* 24 */ + GG (a, b, c, d, x[ 9], S21, 0x21e1cde6); /* 25 */ + GG (d, a, b, c, x[14], S22, 0xc33707d6); /* 26 */ + GG (c, d, a, b, x[ 3], S23, 0xf4d50d87); /* 27 */ + GG (b, c, d, a, x[ 8], S24, 0x455a14ed); /* 28 */ + GG (a, b, c, d, x[13], S21, 0xa9e3e905); /* 29 */ + GG (d, a, b, c, x[ 2], S22, 0xfcefa3f8); /* 30 */ + GG (c, d, a, b, x[ 7], S23, 0x676f02d9); /* 31 */ + GG (b, c, d, a, x[12], S24, 0x8d2a4c8a); /* 32 */ + + /* Round 3 */ + HH (a, b, c, d, x[ 5], S31, 0xfffa3942); /* 33 */ + HH (d, a, b, c, x[ 8], S32, 0x8771f681); /* 34 */ + HH (c, d, a, b, x[11], S33, 0x6d9d6122); /* 35 */ + HH (b, c, d, a, x[14], S34, 0xfde5380c); /* 36 */ + HH (a, b, c, d, x[ 1], S31, 0xa4beea44); /* 37 */ + HH (d, a, b, c, x[ 4], S32, 0x4bdecfa9); /* 38 */ + HH (c, d, a, b, x[ 7], S33, 0xf6bb4b60); /* 39 */ + HH (b, c, d, a, x[10], S34, 0xbebfbc70); /* 40 */ + HH (a, b, c, d, x[13], S31, 0x289b7ec6); /* 41 */ + HH (d, a, b, c, x[ 0], S32, 0xeaa127fa); /* 42 */ + HH (c, d, a, b, x[ 3], S33, 0xd4ef3085); /* 43 */ + HH (b, c, d, a, x[ 6], S34, 0x4881d05); /* 44 */ + HH (a, b, c, d, x[ 9], S31, 0xd9d4d039); /* 45 */ + HH (d, a, b, c, x[12], S32, 0xe6db99e5); /* 46 */ + HH (c, d, a, b, x[15], S33, 0x1fa27cf8); /* 47 */ + HH (b, c, d, a, x[ 2], S34, 0xc4ac5665); /* 48 */ + + /* Round 4 */ + II (a, b, c, d, x[ 0], S41, 0xf4292244); /* 49 */ + II (d, a, b, c, x[ 7], S42, 0x432aff97); /* 50 */ + II (c, d, a, b, x[14], S43, 0xab9423a7); /* 51 */ + II (b, c, d, a, x[ 5], S44, 0xfc93a039); /* 52 */ + II (a, b, c, d, x[12], S41, 0x655b59c3); /* 53 */ + II (d, a, b, c, x[ 3], S42, 0x8f0ccc92); /* 54 */ + II (c, d, a, b, x[10], S43, 0xffeff47d); /* 55 */ + II (b, c, d, a, x[ 1], S44, 0x85845dd1); /* 56 */ + II (a, b, c, d, x[ 8], S41, 0x6fa87e4f); /* 57 */ + II (d, a, b, c, x[15], S42, 0xfe2ce6e0); /* 58 */ + II (c, d, a, b, x[ 6], S43, 0xa3014314); /* 59 */ + II (b, c, d, a, x[13], S44, 0x4e0811a1); /* 60 */ + II (a, b, c, d, x[ 4], S41, 0xf7537e82); /* 61 */ + II (d, a, b, c, x[11], S42, 0xbd3af235); /* 62 */ + II (c, d, a, b, x[ 2], S43, 0x2ad7d2bb); /* 63 */ + II (b, c, d, a, x[ 9], S44, 0xeb86d391); /* 64 */ + + state[0] += a; + state[1] += b; + state[2] += c; + state[3] += d; +} + +/** + * Encodes input (uint32_t) into output (uint8_t). Assumes len is + * a multiple of 4. + */ +static void Encode(uint8_t *output, uint32_t *input, uint32_t len) +{ + uint32_t i, j; + + for (i = 0, j = 0; j < len; i++, j += 4) + { + output[j] = (uint8_t)(input[i] & 0xff); + output[j+1] = (uint8_t)((input[i] >> 8) & 0xff); + output[j+2] = (uint8_t)((input[i] >> 16) & 0xff); + output[j+3] = (uint8_t)((input[i] >> 24) & 0xff); + } +} + +/** + * Decodes input (uint8_t) into output (uint32_t). Assumes len is + * a multiple of 4. + */ +static void Decode(uint32_t *output, const uint8_t *input, uint32_t len) +{ + uint32_t i, j; + + for (i = 0, j = 0; j < len; i++, j += 4) + output[i] = ((uint32_t)input[j]) | (((uint32_t)input[j+1]) << 8) | + (((uint32_t)input[j+2]) << 16) | (((uint32_t)input[j+3]) << 24); +} diff --git a/ccast/axTLS/openssl.c b/ccast/axTLS/openssl.c new file mode 100644 index 0000000..e700436 --- /dev/null +++ b/ccast/axTLS/openssl.c @@ -0,0 +1,323 @@ +/* + * Copyright (c) 2007, Cameron Rich + * + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * * Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * * Neither the name of the axTLS project nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, + * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF + * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING + * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +/* + * Enable a subset of openssl compatible functions. We don't aim to be 100% + * compatible - just to be able to do basic ports etc. + * + * Only really tested on mini_httpd, so I'm not too sure how extensive this + * port is. + */ + +#include "config.h" + +#ifdef CONFIG_OPENSSL_COMPATIBLE +#include +#include +#include +#include "os_port.h" +#include "ssl.h" + +#define OPENSSL_CTX_ATTR ((OPENSSL_CTX *)ssl_ctx->bonus_attr) + +static char *key_password = NULL; + +void *SSLv23_server_method(void) { return NULL; } +void *SSLv3_server_method(void) { return NULL; } +void *TLSv1_server_method(void) { return NULL; } +void *SSLv23_client_method(void) { return NULL; } +void *SSLv3_client_method(void) { return NULL; } +void *TLSv1_client_method(void) { return NULL; } + +typedef void * (*ssl_func_type_t)(void); +typedef void * (*bio_func_type_t)(void); + +typedef struct +{ + ssl_func_type_t ssl_func_type; +} OPENSSL_CTX; + +SSL_CTX * SSL_CTX_new(ssl_func_type_t meth) +{ + SSL_CTX *ssl_ctx = ssl_ctx_new(0, 5); + ssl_ctx->bonus_attr = malloc(sizeof(OPENSSL_CTX)); + OPENSSL_CTX_ATTR->ssl_func_type = meth; + return ssl_ctx; +} + +void SSL_CTX_free(SSL_CTX * ssl_ctx) +{ + free(ssl_ctx->bonus_attr); + ssl_ctx_free(ssl_ctx); +} + +SSL * SSL_new(SSL_CTX *ssl_ctx) +{ + SSL *ssl; + ssl_func_type_t ssl_func_type; + + ssl = ssl_new(ssl_ctx, -1); /* fd is set later */ + ssl_func_type = OPENSSL_CTX_ATTR->ssl_func_type; + +#ifdef CONFIG_SSL_ENABLE_CLIENT + if (ssl_func_type == SSLv23_client_method || + ssl_func_type == SSLv3_client_method || + ssl_func_type == TLSv1_client_method) + { + SET_SSL_FLAG(SSL_IS_CLIENT); + } + else +#endif + { + ssl->next_state = HS_CLIENT_HELLO; + } + + return ssl; +} + +int SSL_set_fd(SSL *s, int fd) +{ + s->client_fd = fd; + return 1; /* always succeeds */ +} + +int SSL_accept(SSL *ssl) +{ + while (ssl_readi(ssl, NULL) == SSL_OK) + { + if (ssl->next_state == HS_CLIENT_HELLO) + return 1; /* we're done */ + } + + return -1; +} + +#ifdef CONFIG_SSL_ENABLE_CLIENT +int SSL_connect(SSL *ssl) +{ + return do_client_connect(ssl) == SSL_OK ? 1 : -1; +} +#endif + +void SSL_free(SSL *ssl) +{ + ssl_free(ssl); +} + +int SSL_read(SSL *ssl, void *buf, int num) +{ + uint8_t *read_buf; + int ret; + + while ((ret = ssl_read(ssl, &read_buf)) == SSL_OK); + + if (ret > SSL_OK) + { + memcpy(buf, read_buf, ret > num ? num : ret); + } + + return ret; +} + +int SSL_write(SSL *ssl, const void *buf, int num) +{ + return ssl_write(ssl, buf, num); +} + +int SSL_CTX_use_certificate_file(SSL_CTX *ssl_ctx, const char *file, int type) +{ + return (ssl_obj_load(ssl_ctx, SSL_OBJ_X509_CERT, file, NULL) == SSL_OK); +} + +int SSL_CTX_use_PrivateKey_file(SSL_CTX *ssl_ctx, const char *file, int type) +{ + return (ssl_obj_load(ssl_ctx, SSL_OBJ_RSA_KEY, file, key_password) == SSL_OK); +} + +int SSL_CTX_use_certificate_ASN1(SSL_CTX *ssl_ctx, int len, const uint8_t *d) +{ + return (ssl_obj_memory_load(ssl_ctx, + SSL_OBJ_X509_CERT, d, len, NULL) == SSL_OK); +} + +int SSL_CTX_set_session_id_context(SSL_CTX *ctx, const unsigned char *sid_ctx, + unsigned int sid_ctx_len) +{ + return 1; +} + +int SSL_CTX_set_default_verify_paths(SSL_CTX *ctx) +{ + return 1; +} + +int SSL_CTX_use_certificate_chain_file(SSL_CTX *ssl_ctx, const char *file) +{ + return (ssl_obj_load(ssl_ctx, + SSL_OBJ_X509_CERT, file, NULL) == SSL_OK); +} + +int SSL_shutdown(SSL *ssl) +{ + return 1; +} + +/*** get/set session ***/ +SSL_SESSION *SSL_get1_session(SSL *ssl) +{ + return (SSL_SESSION *)ssl_get_session_id(ssl); /* note: wrong cast */ +} + +int SSL_set_session(SSL *ssl, SSL_SESSION *session) +{ + memcpy(ssl->session_id, (uint8_t *)session, SSL_SESSION_ID_SIZE); + return 1; +} + +void SSL_SESSION_free(SSL_SESSION *session) { } +/*** end get/set session ***/ + +long SSL_CTX_ctrl(SSL_CTX *ctx, int cmd, long larg, void *parg) +{ + return 0; +} + +void SSL_CTX_set_verify(SSL_CTX *ctx, int mode, + int (*verify_callback)(int, void *)) { } + +void SSL_CTX_set_verify_depth(SSL_CTX *ctx,int depth) { } + +int SSL_CTX_load_verify_locations(SSL_CTX *ctx, const char *CAfile, + const char *CApath) +{ + return 1; +} + +void *SSL_load_client_CA_file(const char *file) +{ + return (void *)file; +} + +void SSL_CTX_set_client_CA_list(SSL_CTX *ssl_ctx, void *file) +{ + + ssl_obj_load(ssl_ctx, SSL_OBJ_X509_CERT, (const char *)file, NULL); +} + +void SSLv23_method(void) { } + +void SSL_CTX_set_default_passwd_cb(SSL_CTX *ctx, void *cb) { } + +void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx, void *u) +{ + key_password = (char *)u; +} + +int SSL_peek(SSL *ssl, void *buf, int num) +{ + memcpy(buf, ssl->bm_data, num); + return num; +} + +void SSL_set_bio(SSL *ssl, void *rbio, void *wbio) { } + +long SSL_get_verify_result(const SSL *ssl) +{ + return ssl_handshake_status(ssl); +} + +int SSL_state(SSL *ssl) +{ + return 0x03; // ok state +} + +/** end of could do better list */ + +void *SSL_get_peer_certificate(const SSL *ssl) +{ + return &ssl->ssl_ctx->certs[0]; +} + +int SSL_clear(SSL *ssl) +{ + return 1; +} + + +int SSL_CTX_check_private_key(const SSL_CTX *ctx) +{ + return 1; +} + +int SSL_CTX_set_cipher_list(SSL *s, const char *str) +{ + return 1; +} + +int SSL_get_error(const SSL *ssl, int ret) +{ + ssl_display_error(ret); + return 0; /* TODO: return proper return code */ +} + +void SSL_CTX_set_options(SSL_CTX *ssl_ctx, int option) {} +int SSL_library_init(void ) { return 1; } +void SSL_load_error_strings(void ) {} +void ERR_print_errors_fp(FILE *fp) {} + +#ifndef CONFIG_SSL_SKELETON_MODE +long SSL_CTX_get_timeout(const SSL_CTX *ssl_ctx) { + return CONFIG_SSL_EXPIRY_TIME*3600; } +long SSL_CTX_set_timeout(SSL_CTX *ssl_ctx, long t) { + return SSL_CTX_get_timeout(ssl_ctx); } +#endif +void BIO_printf(FILE *f, const char *format, ...) +{ + va_list(ap); + va_start(ap, format); + vfprintf(f, format, ap); + va_end(ap); +} + +void* BIO_s_null(void) { return NULL; } +FILE *BIO_new(bio_func_type_t func) +{ + if (func == BIO_s_null) + return fopen("/dev/null", "r"); + else + return NULL; +} + +FILE *BIO_new_fp(FILE *stream, int close_flag) { return stream; } +int BIO_free(FILE *a) { if (a != stdout && a != stderr) fclose(a); return 1; } + + + +#endif diff --git a/ccast/axTLS/os_int.h b/ccast/axTLS/os_int.h new file mode 100644 index 0000000..4918111 --- /dev/null +++ b/ccast/axTLS/os_int.h @@ -0,0 +1,74 @@ + + /* Ensure a consistent bit size */ + +/************************************************************************* + Copyright 2014 Graeme W. Gill + + Permission is hereby granted, free of charge, to any person obtaining a copy + of this software and associated documentation files (the "Software"), to deal + in the Software without restriction, including without limitation the rights + to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + copies of the Software, and to permit persons to whom the Software is + furnished to do so, subject to the following conditions: + + The above copyright notice and this permission notice shall be included in + all copies or substantial portions of the Software. + + THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + THE SOFTWARE. + + *************************************************************************/ + +#ifndef HEADER_OS_INT_H +#define HEADER_OS_INT_H + +#ifdef __cplusplus +extern "C" { +#endif + +#if (__STDC_VERSION__ >= 199901L) /* C99 */ \ + || defined(_STDINT_H_) || defined(_STDINT_H) \ + || defined(_SYS_TYPES_H) + +#include + +#else /* !__STDC_VERSION__ */ +#ifdef _MSC_VER + +typedef __int8 int8_t; +typedef __int16 int16_t; +typedef __int32 int32_t; +typedef __int64 int64_t; +typedef unsigned __int8 uint8_t; +typedef unsigned __int16 uint16_t; +typedef unsigned __int32 uint32_t; +typedef unsigned __int64 uint64_t; + +#else /* !_MSC_VER */ + +/* The following works on a lot of modern systems, including */ +/* LLP64 and LP64 models, but won't work with ILP64 which needs int32 */ + +typedef signed char int8_t; +typedef signed short int16_t; +typedef signed int int32_t; +typedef long long int64_t; + +typedef unsigned char uint8_t; +typedef unsigned short uint16_t; +typedef unsigned int uint32_t; +typedef unsigned long long uint64_t; + +#endif /* !_MSC_VER */ +#endif /* !__STDC_VERSION__ */ + +#ifdef __cplusplus +} +#endif + +#endif diff --git a/ccast/axTLS/os_port.c b/ccast/axTLS/os_port.c new file mode 100644 index 0000000..0bb74f8 --- /dev/null +++ b/ccast/axTLS/os_port.c @@ -0,0 +1,160 @@ +/* + * Copyright (c) 2007, Cameron Rich + * + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * * Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * * Neither the name of the axTLS project nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, + * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF + * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING + * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +/** + * @file os_port.c + * + * OS specific functions. + */ +#include +#include +#include +#include +#include "os_port.h" + +#ifdef WIN32 +/** + * gettimeofday() not in Win32 + */ +EXP_FUNC void STDCALL gettimeofday(struct timeval* t, void* timezone) +{ +#if defined(_WIN32_WCE) + t->tv_sec = time(NULL); + t->tv_usec = 0; /* 1sec precision only */ +#else + struct _timeb timebuffer; + _ftime(&timebuffer); + t->tv_sec = (long)timebuffer.time; + t->tv_usec = 1000 * timebuffer.millitm; /* 1ms precision */ +#endif +} + +#ifndef __GNUC__ /* But is in MingW */ +/** + * strcasecmp() not in Win32 + */ +EXP_FUNC int STDCALL strcasecmp(const char *s1, const char *s2) +{ + while (tolower(*s1) == tolower(*s2++)) + { + if (*s1++ == '\0') + { + return 0; + } + } + + return *(unsigned char *)s1 - *(unsigned char *)(s2 - 1); +} +#endif + + +EXP_FUNC int STDCALL getdomainname(char *buf, int buf_size) +{ + HKEY hKey; + unsigned long datatype; + unsigned long bufferlength = buf_size; + + if (RegOpenKeyEx(HKEY_LOCAL_MACHINE, + TEXT("SYSTEM\\CurrentControlSet\\Services\\Tcpip\\Parameters"), + 0, KEY_QUERY_VALUE, &hKey) != ERROR_SUCCESS) + return -1; + + RegQueryValueEx(hKey, "Domain", NULL, &datatype, buf, &bufferlength); + RegCloseKey(hKey); + return 0; +} +#endif + +#undef malloc +#undef realloc +#undef calloc + +static const char * out_of_mem_str = "out of memory"; +static const char * file_open_str = "Could not open file \"%s\""; + +/* + * Some functions that call display some error trace and then call abort(). + * This just makes life much easier on embedded systems, since we're + * suffering major trauma... + */ +EXP_FUNC void * STDCALL ax_malloc(size_t s) +{ + void *x; + + if ((x = malloc(s)) == NULL) + exit_now(out_of_mem_str); + + return x; +} + +EXP_FUNC void * STDCALL ax_realloc(void *y, size_t s) +{ + void *x; + + if ((x = realloc(y, s)) == NULL) + exit_now(out_of_mem_str); + + return x; +} + +EXP_FUNC void * STDCALL ax_calloc(size_t n, size_t s) +{ + void *x; + + if ((x = calloc(n, s)) == NULL) + exit_now(out_of_mem_str); + + return x; +} + +EXP_FUNC int STDCALL ax_open(const char *pathname, int flags) +{ + int x; + + if ((x = open(pathname, flags)) < 0) + exit_now(file_open_str, pathname); + + return x; +} + +/** + * This is a call which will deliberately exit an application, but will + * display some information before dying. + */ +void exit_now(const char *format, ...) +{ + va_list argp; + + va_start(argp, format); + vfprintf(stderr, format, argp); + va_end(argp); + abort(); +} + diff --git a/ccast/axTLS/os_port.h b/ccast/axTLS/os_port.h new file mode 100644 index 0000000..8ede75a --- /dev/null +++ b/ccast/axTLS/os_port.h @@ -0,0 +1,194 @@ +/* + * Copyright (c) 2007, Cameron Rich + * + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * * Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * * Neither the name of the axTLS project nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, + * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF + * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING + * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +/** + * @file os_port.h + * + * Some stuff to minimise the differences between windows and linux/unix + */ + +#ifndef HEADER_OS_PORT_H +#define HEADER_OS_PORT_H + +#ifdef __cplusplus +extern "C" { +#endif + +#include + +#if defined(NEVER) && defined(WIN32) +#define STDCALL __stdcall +#define EXP_FUNC __declspec(dllexport) +#else +#define STDCALL +#define EXP_FUNC +#endif + +#if defined(_WIN32_WCE) +#undef WIN32 +#define WIN32 +#endif + +#ifdef WIN32 + +/* Windows CE stuff */ +#if defined(_WIN32_WCE) +#include +#define abort() exit(1) +#else +#include +#include +#include +#include +#endif /* _WIN32_WCE */ + +#include +#include +#undef getpid +#undef open +#undef close +#undef sleep +#undef gettimeofday +#undef dup2 +#undef unlink + +#define SOCKET_READ(A,B,C) recv(A,B,C,0) +#define SOCKET_WRITE(A,B,C) send(A,B,C,0) +#define SOCKET_CLOSE(A) closesocket(A) +#define srandom(A) srand(A) +#define random() rand() +#define getpid() _getpid() +#define snprintf _snprintf +#define open(A,B) _open(A,B) +#define dup2(A,B) _dup2(A,B) +#define unlink(A) _unlink(A) +#define close(A) _close(A) +#define read(A,B,C) _read(A,B,C) +#define write(A,B,C) _write(A,B,C) +#define sleep(A) Sleep(A*1000) +#define usleep(A) Sleep(A/1000) +#define strdup(A) _strdup(A) +#define chroot(A) _chdir(A) +#define chdir(A) _chdir(A) +//#define alloca(A) _alloca(A) +#ifndef lseek +#define lseek(A,B,C) _lseek(A,B,C) +#endif + +/* This fix gets around a problem where a win32 application on a cygwin xterm + doesn't display regular output (until a certain buffer limit) - but it works + fine under a normal DOS window. This is a hack to get around the issue - + see http://www.khngai.com/emacs/tty.php */ +#define TTY_FLUSH() if (!_isatty(_fileno(stdout))) fflush(stdout); + +/* + * automatically build some library dependencies. + */ +#pragma comment(lib, "WS2_32.lib") +#pragma comment(lib, "AdvAPI32.lib") + +typedef int socklen_t; + +EXP_FUNC void STDCALL gettimeofday(struct timeval* t,void* timezone); +EXP_FUNC int STDCALL getdomainname(char *buf, int buf_size); +#ifndef __GNUC__ +EXP_FUNC int STDCALL strcasecmp(const char *s1, const char *s2); +#endif + +#else /* Not Win32 */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#define SOCKET_READ(A,B,C) read(A,B,C) +#define SOCKET_WRITE(A,B,C) write(A,B,C) +#define SOCKET_CLOSE(A) if (A >= 0) close(A) +#define TTY_FLUSH() + +#endif /* Not Win32 */ + +#include "os_int.h" + +/* some functions to mutate the way these work */ +#define malloc(A) ax_malloc(A) +#ifndef realloc +#define realloc(A,B) ax_realloc(A,B) +#endif +#define calloc(A,B) ax_calloc(A,B) + +EXP_FUNC void * STDCALL ax_malloc(size_t s); +EXP_FUNC void * STDCALL ax_realloc(void *y, size_t s); +EXP_FUNC void * STDCALL ax_calloc(size_t n, size_t s); +EXP_FUNC int STDCALL ax_open(const char *pathname, int flags); + +#ifdef CONFIG_PLATFORM_LINUX +void exit_now(const char *format, ...) __attribute((noreturn)); +#else +void exit_now(const char *format, ...); +#endif + +/* Mutexing definitions */ +#if defined(CONFIG_SSL_CTX_MUTEXING) +#if defined(WIN32) +#define SSL_CTX_MUTEX_TYPE HANDLE +#define SSL_CTX_MUTEX_INIT(A) A=CreateMutex(0, FALSE, 0) +#define SSL_CTX_MUTEX_DESTROY(A) CloseHandle(A) +#define SSL_CTX_LOCK(A) WaitForSingleObject(A, INFINITE) +#define SSL_CTX_UNLOCK(A) ReleaseMutex(A) +#else +#include +#define SSL_CTX_MUTEX_TYPE pthread_mutex_t +#define SSL_CTX_MUTEX_INIT(A) pthread_mutex_init(&A, NULL) +#define SSL_CTX_MUTEX_DESTROY(A) pthread_mutex_destroy(&A) +#define SSL_CTX_LOCK(A) pthread_mutex_lock(&A) +#define SSL_CTX_UNLOCK(A) pthread_mutex_unlock(&A) +#endif +#else /* no mutexing */ +#define SSL_CTX_MUTEX_INIT(A) +#define SSL_CTX_MUTEX_DESTROY(A) +#define SSL_CTX_LOCK(A) +#define SSL_CTX_UNLOCK(A) +#endif + +#ifdef __cplusplus +} +#endif + +#endif diff --git a/ccast/axTLS/p12.c b/ccast/axTLS/p12.c new file mode 100644 index 0000000..2bafaf7 --- /dev/null +++ b/ccast/axTLS/p12.c @@ -0,0 +1,483 @@ +/* + * Copyright (c) 2007, Cameron Rich + * + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * * Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * * Neither the name of the axTLS project nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, + * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF + * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING + * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +/** + * Process PKCS#8/PKCS#12 keys. + * + * The decoding of a PKCS#12 key is fairly specific - this code was tested on a + * key generated with: + * + * openssl pkcs12 -export -in axTLS.x509_1024.pem -inkey axTLS.key_1024.pem + * -keypbe PBE-SHA1-RC4-128 -certpbe PBE-SHA1-RC4-128 + * -name "p12_withoutCA" -out axTLS.withoutCA.p12 -password pass:abcd + * + * or with a certificate chain: + * + * openssl pkcs12 -export -in axTLS.x509_1024.pem -inkey axTLS.key_1024.pem + * -certfile axTLS.ca_x509.pem -keypbe PBE-SHA1-RC4-128 -certpbe + * PBE-SHA1-RC4-128 -name "p12_withCA" -out axTLS.withCA.p12 -password pass:abcd + * + * Note that the PBE has to be specified with PBE-SHA1-RC4-128. The + * private/public keys/certs have to use RSA encryption. Both the integrity + * and privacy passwords are the same. + * + * The PKCS#8 files were generated with something like: + * + * PEM format: + * openssl pkcs8 -in axTLS.key_512.pem -passout pass:abcd -topk8 -v1 + * PBE-SHA1-RC4-128 -out axTLS.encrypted_pem.p8 + * + * DER format: + * openssl pkcs8 -in axTLS.key_512.pem -passout pass:abcd -topk8 -outform DER + * -v1 PBE-SHA1-RC4-128 -out axTLS.encrypted.p8 + */ + +#include +#include +#include +#include "os_port.h" +#include "ssl.h" + +/* all commented out if not used */ +#ifdef CONFIG_SSL_USE_PKCS12 + +#define BLOCK_SIZE 64 +#define PKCS12_KEY_ID 1 +#define PKCS12_IV_ID 2 +#define PKCS12_MAC_ID 3 + +static char *make_uni_pass(const char *password, int *uni_pass_len); +static int p8_decrypt(const char *uni_pass, int uni_pass_len, + const uint8_t *salt, int iter, + uint8_t *priv_key, int priv_key_len, int id); +static int p8_add_key(SSL_CTX *ssl_ctx, uint8_t *priv_key); +static int get_pbe_params(uint8_t *buf, int *offset, + const uint8_t **salt, int *iterations); + +/* + * Take a raw pkcs8 block and then decrypt it and turn it into a normal key. + */ +int pkcs8_decode(SSL_CTX *ssl_ctx, SSLObjLoader *ssl_obj, const char *password) +{ + uint8_t *buf = ssl_obj->buf; + int len, offset = 0; + int iterations; + int ret = SSL_NOT_OK; + uint8_t *version = NULL; + const uint8_t *salt; + uint8_t *priv_key; + int uni_pass_len; + char *uni_pass = make_uni_pass(password, &uni_pass_len); + + if (asn1_next_obj(buf, &offset, ASN1_SEQUENCE) < 0) + { +#ifdef CONFIG_SSL_FULL_MODE + printf("Error: Invalid p8 ASN.1 file\n"); +#endif + goto error; + } + + /* unencrypted key? */ + if (asn1_get_int(buf, &offset, &version) > 0 && *version == 0) + { + ret = p8_add_key(ssl_ctx, buf); + goto error; + } + + if (get_pbe_params(buf, &offset, &salt, &iterations) < 0) + goto error; + + if ((len = asn1_next_obj(buf, &offset, ASN1_OCTET_STRING)) < 0) + goto error; + + priv_key = &buf[offset]; + + p8_decrypt(uni_pass, uni_pass_len, salt, + iterations, priv_key, len, PKCS12_KEY_ID); + ret = p8_add_key(ssl_ctx, priv_key); + +error: + free(version); + free(uni_pass); + return ret; +} + +/* + * Take the unencrypted pkcs8 and turn it into a private key + */ +static int p8_add_key(SSL_CTX *ssl_ctx, uint8_t *priv_key) +{ + uint8_t *buf = priv_key; + int len, offset = 0; + int ret = SSL_NOT_OK; + + /* Skip the preamble and go straight to the private key. + We only support rsaEncryption (1.2.840.113549.1.1.1) */ + if (asn1_next_obj(buf, &offset, ASN1_SEQUENCE) < 0 || + asn1_skip_obj(buf, &offset, ASN1_INTEGER) < 0 || + asn1_skip_obj(buf, &offset, ASN1_SEQUENCE) < 0 || + (len = asn1_next_obj(buf, &offset, ASN1_OCTET_STRING)) < 0) + goto error; + + ret = asn1_get_private_key(&buf[offset], len, &ssl_ctx->rsa_ctx); + +error: + return ret; +} + +/* + * Create the unicode password + */ +static char *make_uni_pass(const char *password, int *uni_pass_len) +{ + int pass_len = 0, i; + char *uni_pass; + + if (password == NULL) + { + password = ""; + } + + uni_pass = (char *)malloc((strlen(password)+1)*2); + + /* modify the password into a unicode version */ + for (i = 0; i < (int)strlen(password); i++) + { + uni_pass[pass_len++] = 0; + uni_pass[pass_len++] = password[i]; + } + + uni_pass[pass_len++] = 0; /* null terminate */ + uni_pass[pass_len++] = 0; + *uni_pass_len = pass_len; + return uni_pass; +} + +/* + * Decrypt a pkcs8 block. + */ +static int p8_decrypt(const char *uni_pass, int uni_pass_len, + const uint8_t *salt, int iter, + uint8_t *priv_key, int priv_key_len, int id) +{ + uint8_t p[BLOCK_SIZE*2]; + uint8_t d[BLOCK_SIZE]; + uint8_t Ai[SHA1_SIZE]; + SHA1_CTX sha_ctx; + RC4_CTX rc4_ctx; + int i; + + for (i = 0; i < BLOCK_SIZE; i++) + { + p[i] = salt[i % SALT_SIZE]; + p[BLOCK_SIZE+i] = uni_pass[i % uni_pass_len]; + d[i] = id; + } + + /* get the key - no IV since we are using RC4 */ + SHA1_Init(&sha_ctx); + SHA1_Update(&sha_ctx, d, sizeof(d)); + SHA1_Update(&sha_ctx, p, sizeof(p)); + SHA1_Final(Ai, &sha_ctx); + + for (i = 1; i < iter; i++) + { + SHA1_Init(&sha_ctx); + SHA1_Update(&sha_ctx, Ai, SHA1_SIZE); + SHA1_Final(Ai, &sha_ctx); + } + + /* do the decryption */ + if (id == PKCS12_KEY_ID) + { + RC4_setup(&rc4_ctx, Ai, 16); + RC4_crypt(&rc4_ctx, priv_key, priv_key, priv_key_len); + } + else /* MAC */ + memcpy(priv_key, Ai, SHA1_SIZE); + + return 0; +} + +/* + * Take a raw pkcs12 block and the decrypt it and turn it into a certificate(s) + * and keys. + */ +int pkcs12_decode(SSL_CTX *ssl_ctx, SSLObjLoader *ssl_obj, const char *password) +{ + uint8_t *buf = ssl_obj->buf; + int len, iterations, auth_safes_start, + auth_safes_end, auth_safes_len, key_offset, offset = 0; + int all_certs = 0; + uint8_t *version = NULL, *auth_safes = NULL, *cert, *orig_mac; + uint8_t key[SHA1_SIZE]; + uint8_t mac[SHA1_SIZE]; + const uint8_t *salt; + int uni_pass_len, ret = SSL_OK; + char *uni_pass = make_uni_pass(password, &uni_pass_len); + static const uint8_t pkcs_data[] = /* pkc7 data */ + { 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d, 0x01, 0x07, 0x01 }; + static const uint8_t pkcs_encrypted[] = /* pkc7 encrypted */ + { 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d, 0x01, 0x07, 0x06 }; + static const uint8_t pkcs8_key_bag[] = /* 1.2.840.113549.1.12.10.1.2 */ + { 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d, 0x01, 0x0c, 0x0a, 0x01, 0x02 }; + + if (asn1_next_obj(buf, &offset, ASN1_SEQUENCE) < 0) + { +#ifdef CONFIG_SSL_FULL_MODE + printf("Error: Invalid p12 ASN.1 file\n"); +#endif + goto error; + } + + if (asn1_get_int(buf, &offset, &version) < 0 || *version != 3) + { + ret = SSL_ERROR_INVALID_VERSION; + goto error; + } + + /* remove all the boring pcks7 bits */ + if (asn1_next_obj(buf, &offset, ASN1_SEQUENCE) < 0 || + (len = asn1_next_obj(buf, &offset, ASN1_OID)) < 0 || + len != sizeof(pkcs_data) || + memcmp(&buf[offset], pkcs_data, sizeof(pkcs_data))) + goto error; + + offset += len; + + if (asn1_next_obj(buf, &offset, ASN1_EXPLICIT_TAG) < 0 || + asn1_next_obj(buf, &offset, ASN1_OCTET_STRING) < 0) + goto error; + + /* work out the MAC start/end points (done on AuthSafes) */ + auth_safes_start = offset; + auth_safes_end = offset; + if (asn1_skip_obj(buf, &auth_safes_end, ASN1_SEQUENCE) < 0) + goto error; + + auth_safes_len = auth_safes_end - auth_safes_start; + auth_safes = malloc(auth_safes_len); + + memcpy(auth_safes, &buf[auth_safes_start], auth_safes_len); + + if (asn1_next_obj(buf, &offset, ASN1_SEQUENCE) < 0 || + asn1_next_obj(buf, &offset, ASN1_SEQUENCE) < 0 || + (len = asn1_next_obj(buf, &offset, ASN1_OID)) < 0 || + (len != sizeof(pkcs_encrypted) || + memcmp(&buf[offset], pkcs_encrypted, sizeof(pkcs_encrypted)))) + goto error; + + offset += len; + + if (asn1_next_obj(buf, &offset, ASN1_EXPLICIT_TAG) < 0 || + asn1_next_obj(buf, &offset, ASN1_SEQUENCE) < 0 || + asn1_skip_obj(buf, &offset, ASN1_INTEGER) < 0 || + asn1_next_obj(buf, &offset, ASN1_SEQUENCE) < 0 || + (len = asn1_next_obj(buf, &offset, ASN1_OID)) < 0 || + len != sizeof(pkcs_data) || + memcmp(&buf[offset], pkcs_data, sizeof(pkcs_data))) + goto error; + + offset += len; + + /* work out the salt for the certificate */ + if (get_pbe_params(buf, &offset, &salt, &iterations) < 0 || + (len = asn1_next_obj(buf, &offset, ASN1_IMPLICIT_TAG)) < 0) + goto error; + + /* decrypt the certificate */ + cert = &buf[offset]; + if ((ret = p8_decrypt(uni_pass, uni_pass_len, salt, iterations, cert, + len, PKCS12_KEY_ID)) < 0) + goto error; + + offset += len; + + /* load the certificate */ + key_offset = 0; + all_certs = asn1_next_obj(cert, &key_offset, ASN1_SEQUENCE); + + /* keep going until all certs are loaded */ + while (key_offset < all_certs) + { + int cert_offset = key_offset; + + if (asn1_skip_obj(cert, &cert_offset, ASN1_SEQUENCE) < 0 || + asn1_next_obj(cert, &key_offset, ASN1_SEQUENCE) < 0 || + asn1_skip_obj(cert, &key_offset, ASN1_OID) < 0 || + asn1_next_obj(cert, &key_offset, ASN1_EXPLICIT_TAG) < 0 || + asn1_next_obj(cert, &key_offset, ASN1_SEQUENCE) < 0 || + asn1_skip_obj(cert, &key_offset, ASN1_OID) < 0 || + asn1_next_obj(cert, &key_offset, ASN1_EXPLICIT_TAG) < 0 || + (len = asn1_next_obj(cert, &key_offset, ASN1_OCTET_STRING)) < 0) + goto error; + + if ((ret = add_cert(ssl_ctx, &cert[key_offset], len)) < 0) + goto error; + + key_offset = cert_offset; + } + + if (asn1_next_obj(buf, &offset, ASN1_SEQUENCE) < 0 || + (len = asn1_next_obj(buf, &offset, ASN1_OID)) < 0 || + len != sizeof(pkcs_data) || + memcmp(&buf[offset], pkcs_data, sizeof(pkcs_data))) + goto error; + + offset += len; + + if (asn1_next_obj(buf, &offset, ASN1_EXPLICIT_TAG) < 0 || + asn1_next_obj(buf, &offset, ASN1_OCTET_STRING) < 0 || + asn1_next_obj(buf, &offset, ASN1_SEQUENCE) < 0 || + asn1_next_obj(buf, &offset, ASN1_SEQUENCE) < 0 || + (len = asn1_next_obj(buf, &offset, ASN1_OID)) < 0 || + (len != sizeof(pkcs8_key_bag)) || + memcmp(&buf[offset], pkcs8_key_bag, sizeof(pkcs8_key_bag))) + goto error; + + offset += len; + + /* work out the salt for the private key */ + if (asn1_next_obj(buf, &offset, ASN1_EXPLICIT_TAG) < 0 || + asn1_next_obj(buf, &offset, ASN1_SEQUENCE) < 0 || + get_pbe_params(buf, &offset, &salt, &iterations) < 0 || + (len = asn1_next_obj(buf, &offset, ASN1_OCTET_STRING)) < 0) + goto error; + + /* decrypt the private key */ + cert = &buf[offset]; + if ((ret = p8_decrypt(uni_pass, uni_pass_len, salt, iterations, cert, + len, PKCS12_KEY_ID)) < 0) + goto error; + + offset += len; + + /* load the private key */ + if ((ret = p8_add_key(ssl_ctx, cert)) < 0) + goto error; + + /* miss out on friendly name, local key id etc */ + if (asn1_skip_obj(buf, &offset, ASN1_SET) < 0) + goto error; + + /* work out the MAC */ + if (asn1_next_obj(buf, &offset, ASN1_SEQUENCE) < 0 || + asn1_next_obj(buf, &offset, ASN1_SEQUENCE) < 0 || + asn1_skip_obj(buf, &offset, ASN1_SEQUENCE) < 0 || + (len = asn1_next_obj(buf, &offset, ASN1_OCTET_STRING)) < 0 || + len != SHA1_SIZE) + goto error; + + orig_mac = &buf[offset]; + offset += len; + + /* get the salt */ + if ((len = asn1_next_obj(buf, &offset, ASN1_OCTET_STRING)) < 0 || len != 8) + goto error; + + salt = &buf[offset]; + + /* work out what the mac should be */ + if ((ret = p8_decrypt(uni_pass, uni_pass_len, salt, iterations, + key, SHA1_SIZE, PKCS12_MAC_ID)) < 0) + goto error; + + hmac_sha1(auth_safes, auth_safes_len, key, SHA1_SIZE, mac); + + if (memcmp(mac, orig_mac, SHA1_SIZE)) + { + ret = SSL_ERROR_INVALID_HMAC; + goto error; + } + +error: + free(version); + free(uni_pass); + free(auth_safes); + return ret; +} + +/* + * Retrieve the salt/iteration details from a PBE block. + */ +static int get_pbe_params(uint8_t *buf, int *offset, + const uint8_t **salt, int *iterations) +{ + static const uint8_t pbeSH1RC4[] = /* pbeWithSHAAnd128BitRC4 */ + { 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d, 0x01, 0x0c, 0x01, 0x01 }; + + int i, len; + uint8_t *iter = NULL; + int error_code = SSL_ERROR_NOT_SUPPORTED; + + /* Get the PBE type */ + if (asn1_next_obj(buf, offset, ASN1_SEQUENCE) < 0 || + (len = asn1_next_obj(buf, offset, ASN1_OID)) < 0) + goto error; + + /* we expect pbeWithSHAAnd128BitRC4 (1.2.840.113549.1.12.1.1) + which is the only algorithm we support */ + if (len != sizeof(pbeSH1RC4) || + memcmp(&buf[*offset], pbeSH1RC4, sizeof(pbeSH1RC4))) + { +#ifdef CONFIG_SSL_FULL_MODE + printf("Error: pkcs8/pkcs12 must use \"PBE-SHA1-RC4-128\"\n"); +#endif + goto error; + } + + *offset += len; + + if (asn1_next_obj(buf, offset, ASN1_SEQUENCE) < 0 || + (len = asn1_next_obj(buf, offset, ASN1_OCTET_STRING)) < 0 || + len != 8) + goto error; + + *salt = &buf[*offset]; + *offset += len; + + if ((len = asn1_get_int(buf, offset, &iter)) < 0) + goto error; + + *iterations = 0; + for (i = 0; i < len; i++) + { + (*iterations) <<= 8; + (*iterations) += iter[i]; + } + + free(iter); + error_code = SSL_OK; /* got here - we are ok */ + +error: + return error_code; +} + +#endif diff --git a/ccast/axTLS/private_key.h b/ccast/axTLS/private_key.h new file mode 100644 index 0000000..ce7985c --- /dev/null +++ b/ccast/axTLS/private_key.h @@ -0,0 +1,54 @@ +unsigned char default_private_key[] = { + 0x30, 0x82, 0x02, 0x5d, 0x02, 0x01, 0x00, 0x02, 0x81, 0x81, 0x00, 0xcd, + 0xfd, 0x89, 0x48, 0xbe, 0x36, 0xb9, 0x95, 0x76, 0xd4, 0x13, 0x30, 0x0e, + 0xbf, 0xb2, 0xed, 0x67, 0x0a, 0xc0, 0x16, 0x3f, 0x51, 0x09, 0x9d, 0x29, + 0x2f, 0xb2, 0x6d, 0x3f, 0x3e, 0x6c, 0x2f, 0x90, 0x80, 0xa1, 0x71, 0xdf, + 0xbe, 0x38, 0xc5, 0xcb, 0xa9, 0x9a, 0x40, 0x14, 0x90, 0x0a, 0xf9, 0xb7, + 0x07, 0x0b, 0xe1, 0xda, 0xe7, 0x09, 0xbf, 0x0d, 0x57, 0x41, 0x86, 0x60, + 0xa1, 0xc1, 0x27, 0x91, 0x5b, 0x0a, 0x98, 0x46, 0x1b, 0xf6, 0xa2, 0x84, + 0xf8, 0x65, 0xc7, 0xce, 0x2d, 0x96, 0x17, 0xaa, 0x91, 0xf8, 0x61, 0x04, + 0x50, 0x70, 0xeb, 0xb4, 0x43, 0xb7, 0xdc, 0x9a, 0xcc, 0x31, 0x01, 0x14, + 0xd4, 0xcd, 0xcc, 0xc2, 0x37, 0x6d, 0x69, 0x82, 0xd6, 0xc6, 0xc4, 0xbe, + 0xf2, 0x34, 0xa5, 0xc9, 0xa6, 0x19, 0x53, 0x32, 0x7a, 0x86, 0x0e, 0x91, + 0x82, 0x0f, 0xa1, 0x42, 0x54, 0xaa, 0x01, 0x02, 0x03, 0x01, 0x00, 0x01, + 0x02, 0x81, 0x81, 0x00, 0x95, 0xaa, 0x6e, 0x11, 0xf5, 0x6a, 0x8b, 0xa2, + 0xc6, 0x48, 0xc6, 0x7c, 0x37, 0x6b, 0x1f, 0x55, 0x10, 0x76, 0x26, 0x24, + 0xc3, 0xf2, 0x5c, 0x5a, 0xdd, 0x2e, 0xf3, 0xa4, 0x1e, 0xbc, 0x7b, 0x1c, + 0x80, 0x10, 0x85, 0xbc, 0xd8, 0x45, 0x3c, 0xb8, 0xb2, 0x06, 0x53, 0xb5, + 0xd5, 0x7a, 0xe7, 0x0e, 0x92, 0xe6, 0x42, 0xc2, 0xe2, 0x2a, 0xd5, 0xd1, + 0x03, 0x9f, 0x6f, 0x53, 0x74, 0x68, 0x72, 0x8e, 0xbf, 0x03, 0xbb, 0xab, + 0xbd, 0xa1, 0xf9, 0x81, 0x7d, 0x12, 0xd4, 0x9d, 0xb6, 0xae, 0x4c, 0xad, + 0xca, 0xa8, 0xc9, 0x80, 0x8d, 0x0d, 0xd5, 0xd0, 0xa1, 0xbf, 0xec, 0x60, + 0x48, 0x49, 0xed, 0x97, 0x0f, 0x5e, 0xed, 0xfc, 0x39, 0x15, 0x96, 0x9e, + 0x5d, 0xe2, 0xb4, 0x5d, 0x2e, 0x04, 0xdc, 0x08, 0xa2, 0x65, 0x29, 0x2d, + 0x37, 0xfb, 0x62, 0x90, 0x1b, 0x7b, 0xe5, 0x3a, 0x58, 0x05, 0x55, 0xc1, + 0x02, 0x41, 0x00, 0xfc, 0x69, 0x28, 0xc9, 0xa8, 0xc4, 0x5c, 0xe3, 0xd0, + 0x5e, 0xaa, 0xda, 0xde, 0x87, 0x74, 0xdb, 0xcb, 0x40, 0x78, 0x8e, 0x1d, + 0x12, 0x96, 0x16, 0x61, 0x3f, 0xb3, 0x3e, 0xa3, 0x0d, 0xdc, 0x49, 0xa5, + 0x25, 0x87, 0xc5, 0x97, 0x85, 0x9d, 0xbb, 0xb4, 0xf0, 0x44, 0xfd, 0x6c, + 0xe8, 0xd2, 0x8c, 0xec, 0x33, 0x81, 0x46, 0x1e, 0x10, 0x12, 0x33, 0x16, + 0x95, 0x00, 0x4f, 0x75, 0xb4, 0xe5, 0x79, 0x02, 0x41, 0x00, 0xd0, 0xeb, + 0x65, 0x07, 0x10, 0x3b, 0xd9, 0x03, 0xeb, 0xdc, 0x6f, 0x4b, 0x8f, 0xc3, + 0x87, 0xce, 0x76, 0xd6, 0xc5, 0x14, 0x21, 0x4e, 0xe7, 0x4f, 0x1b, 0xe8, + 0x05, 0xf8, 0x84, 0x1a, 0xe0, 0xc5, 0xd6, 0xe3, 0x08, 0xb3, 0x54, 0x57, + 0x02, 0x1f, 0xd4, 0xd9, 0xfb, 0xff, 0x40, 0xb1, 0x56, 0x1c, 0x60, 0xf7, + 0xac, 0x91, 0xf3, 0xd3, 0xc6, 0x7f, 0x84, 0xfd, 0x84, 0x9d, 0xea, 0x26, + 0xee, 0xc9, 0x02, 0x41, 0x00, 0xa6, 0xcf, 0x1c, 0x6c, 0x81, 0x03, 0x1c, + 0x5c, 0x56, 0x05, 0x6a, 0x26, 0x70, 0xef, 0xd6, 0x13, 0xb7, 0x74, 0x28, + 0xf7, 0xca, 0x50, 0xd1, 0x2d, 0x83, 0x21, 0x64, 0xe4, 0xdd, 0x3f, 0x38, + 0xb8, 0xd6, 0xd2, 0x41, 0xb3, 0x1c, 0x9a, 0xea, 0x0d, 0xf5, 0xda, 0xdf, + 0xcd, 0x17, 0x9f, 0x9a, 0x1e, 0x15, 0xaf, 0x48, 0x1c, 0xbd, 0x9b, 0x63, + 0x5b, 0xad, 0xed, 0xd4, 0xa1, 0xae, 0xa9, 0x59, 0x09, 0x02, 0x40, 0x4e, + 0x08, 0xce, 0xa8, 0x8f, 0xc0, 0xba, 0xf3, 0x83, 0x02, 0xc8, 0x33, 0x62, + 0x14, 0x77, 0xc2, 0x7f, 0x93, 0x02, 0xf3, 0xdc, 0xe9, 0x1a, 0xee, 0xea, + 0x8e, 0x84, 0xc4, 0x69, 0x9b, 0x9c, 0x7f, 0x69, 0x1f, 0x4e, 0x1d, 0xa5, + 0x90, 0x06, 0x44, 0x1b, 0x7d, 0xfc, 0x69, 0x40, 0x21, 0xbc, 0xf7, 0x46, + 0xa4, 0xdc, 0x39, 0x7b, 0xe8, 0x8b, 0x49, 0x10, 0x44, 0x9d, 0x67, 0x5a, + 0x91, 0x86, 0x39, 0x02, 0x40, 0x41, 0x2c, 0x4e, 0xfe, 0xd9, 0x90, 0x89, + 0x00, 0x5c, 0x94, 0x0a, 0x4a, 0x7e, 0x1b, 0x1a, 0x80, 0x06, 0x01, 0x37, + 0xda, 0x50, 0x61, 0x9d, 0x9c, 0xfe, 0x25, 0x7f, 0xd8, 0xd4, 0xc4, 0x9e, + 0x81, 0xf2, 0x0c, 0x1e, 0x38, 0x21, 0x1e, 0x90, 0x3f, 0xd4, 0xba, 0x6c, + 0x53, 0xcb, 0xf0, 0x77, 0x79, 0x9b, 0xf1, 0xfa, 0x3f, 0x81, 0xdc, 0xf3, + 0x21, 0x02, 0x6d, 0xb7, 0x95, 0xc3, 0x2e, 0xce, 0xd5 +}; +unsigned int default_private_key_len = 609; diff --git a/ccast/axTLS/rc4.c b/ccast/axTLS/rc4.c new file mode 100644 index 0000000..12a1211 --- /dev/null +++ b/ccast/axTLS/rc4.c @@ -0,0 +1,92 @@ +/* + * Copyright (c) 2007, Cameron Rich + * + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * * Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * * Neither the name of the axTLS project nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, + * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF + * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING + * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +/** + * An implementation of the RC4/ARC4 algorithm. + * Originally written by Christophe Devine. + */ + +#include +#include "os_port.h" +#include "crypto.h" + +/** + * Get ready for an encrypt/decrypt operation + */ +void RC4_setup(RC4_CTX *ctx, const uint8_t *key, int length) +{ + int i, j = 0, k = 0, a; + uint8_t *m; + + ctx->x = 0; + ctx->y = 0; + m = ctx->m; + + for (i = 0; i < 256; i++) + m[i] = i; + + for (i = 0; i < 256; i++) + { + a = m[i]; + j = (uint8_t)(j + a + key[k]); + m[i] = m[j]; + m[j] = a; + + if (++k >= length) + k = 0; + } +} + +/** + * Perform the encrypt/decrypt operation (can use it for either since + * this is a stream cipher). + * NOTE: *msg and *out must be the same pointer (performance tweak) + */ +void RC4_crypt(RC4_CTX *ctx, const uint8_t *msg, uint8_t *out, int length) +{ + int i; + uint8_t *m, x, y, a, b; + + x = ctx->x; + y = ctx->y; + m = ctx->m; + + for (i = 0; i < length; i++) + { + a = m[++x]; + y += a; + m[x] = b = m[y]; + m[y] = a; + out[i] ^= m[(uint8_t)(a + b)]; + } + + ctx->x = x; + ctx->y = y; +} diff --git a/ccast/axTLS/rsa.c b/ccast/axTLS/rsa.c new file mode 100644 index 0000000..e707f2b --- /dev/null +++ b/ccast/axTLS/rsa.c @@ -0,0 +1,270 @@ +/* + * Copyright (c) 2007, Cameron Rich + * + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * * Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * * Neither the name of the axTLS project nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, + * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF + * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING + * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +/** + * Implements the RSA public encryption algorithm. Uses the bigint library to + * perform its calculations. + */ + +#include +#include +#include +#include +#include "os_port.h" +#include "crypto.h" + +void RSA_priv_key_new(RSA_CTX **ctx, + const uint8_t *modulus, int mod_len, + const uint8_t *pub_exp, int pub_len, + const uint8_t *priv_exp, int priv_len +#ifdef CONFIG_BIGINT_CRT + , const uint8_t *p, int p_len, + const uint8_t *q, int q_len, + const uint8_t *dP, int dP_len, + const uint8_t *dQ, int dQ_len, + const uint8_t *qInv, int qInv_len +#endif + ) +{ + RSA_CTX *rsa_ctx; + BI_CTX *bi_ctx; + RSA_pub_key_new(ctx, modulus, mod_len, pub_exp, pub_len); + rsa_ctx = *ctx; + bi_ctx = rsa_ctx->bi_ctx; + rsa_ctx->d = bi_import(bi_ctx, priv_exp, priv_len); + bi_permanent(rsa_ctx->d); + +#ifdef CONFIG_BIGINT_CRT + rsa_ctx->p = bi_import(bi_ctx, p, p_len); + rsa_ctx->q = bi_import(bi_ctx, q, q_len); + rsa_ctx->dP = bi_import(bi_ctx, dP, dP_len); + rsa_ctx->dQ = bi_import(bi_ctx, dQ, dQ_len); + rsa_ctx->qInv = bi_import(bi_ctx, qInv, qInv_len); + bi_permanent(rsa_ctx->dP); + bi_permanent(rsa_ctx->dQ); + bi_permanent(rsa_ctx->qInv); + bi_set_mod(bi_ctx, rsa_ctx->p, BIGINT_P_OFFSET); + bi_set_mod(bi_ctx, rsa_ctx->q, BIGINT_Q_OFFSET); +#endif +} + +void RSA_pub_key_new(RSA_CTX **ctx, + const uint8_t *modulus, int mod_len, + const uint8_t *pub_exp, int pub_len) +{ + RSA_CTX *rsa_ctx; + BI_CTX *bi_ctx; + + if (*ctx) /* if we load multiple certs, dump the old one */ + RSA_free(*ctx); + + bi_ctx = bi_initialize(); + *ctx = (RSA_CTX *)calloc(1, sizeof(RSA_CTX)); + rsa_ctx = *ctx; + rsa_ctx->bi_ctx = bi_ctx; + rsa_ctx->num_octets = mod_len; + rsa_ctx->m = bi_import(bi_ctx, modulus, mod_len); + bi_set_mod(bi_ctx, rsa_ctx->m, BIGINT_M_OFFSET); + rsa_ctx->e = bi_import(bi_ctx, pub_exp, pub_len); + bi_permanent(rsa_ctx->e); +} + +/** + * Free up any RSA context resources. + */ +void RSA_free(RSA_CTX *rsa_ctx) +{ + BI_CTX *bi_ctx; + if (rsa_ctx == NULL) /* deal with ptrs that are null */ + return; + + bi_ctx = rsa_ctx->bi_ctx; + + bi_depermanent(rsa_ctx->e); + bi_free(bi_ctx, rsa_ctx->e); + bi_free_mod(rsa_ctx->bi_ctx, BIGINT_M_OFFSET); + + if (rsa_ctx->d) + { + bi_depermanent(rsa_ctx->d); + bi_free(bi_ctx, rsa_ctx->d); +#ifdef CONFIG_BIGINT_CRT + bi_depermanent(rsa_ctx->dP); + bi_depermanent(rsa_ctx->dQ); + bi_depermanent(rsa_ctx->qInv); + bi_free(bi_ctx, rsa_ctx->dP); + bi_free(bi_ctx, rsa_ctx->dQ); + bi_free(bi_ctx, rsa_ctx->qInv); + bi_free_mod(rsa_ctx->bi_ctx, BIGINT_P_OFFSET); + bi_free_mod(rsa_ctx->bi_ctx, BIGINT_Q_OFFSET); +#endif + } + + bi_terminate(bi_ctx); + free(rsa_ctx); +} + +/** + * @brief Use PKCS1.5 for decryption/verification. + * @param ctx [in] The context + * @param in_data [in] The data to encrypt (must be < modulus size-11) + * @param out_data [out] The encrypted data. + * @param is_decryption [in] Decryption or verify operation. + * @return The number of bytes that were originally encrypted. -1 on error. + * @see http://www.rsasecurity.com/rsalabs/node.asp?id=2125 + */ +int RSA_decrypt(const RSA_CTX *ctx, const uint8_t *in_data, + uint8_t *out_data, int is_decryption) +{ + const int byte_size = ctx->num_octets; + int i, size; + bigint *decrypted_bi, *dat_bi; + uint8_t *block = (uint8_t *)malloc(byte_size); + + memset(out_data, 0, byte_size); /* initialise */ + + /* decrypt */ + dat_bi = bi_import(ctx->bi_ctx, in_data, byte_size); +#ifdef CONFIG_SSL_CERT_VERIFICATION + decrypted_bi = is_decryption ? /* decrypt or verify? */ + RSA_private(ctx, dat_bi) : RSA_public(ctx, dat_bi); +#else /* always a decryption */ + decrypted_bi = RSA_private(ctx, dat_bi); +#endif + + /* convert to a normal block */ + bi_export(ctx->bi_ctx, decrypted_bi, block, byte_size); + + i = 10; /* start at the first possible non-padded byte */ + +#ifdef CONFIG_SSL_CERT_VERIFICATION + if (is_decryption == 0) /* PKCS1.5 signing pads with "0xff"s */ + { + while (block[i++] == 0xff && i < byte_size); + + if (block[i-2] != 0xff) + i = byte_size; /*ensure size is 0 */ + } + else /* PKCS1.5 encryption padding is random */ +#endif + { + while (block[i++] && i < byte_size); + } + size = byte_size - i; + + /* get only the bit we want */ + if (size > 0) + memcpy(out_data, &block[i], size); + + free(block); + return size ? size : -1; +} + +/** + * Performs m = c^d mod n + */ +bigint *RSA_private(const RSA_CTX *c, bigint *bi_msg) +{ +#ifdef CONFIG_BIGINT_CRT + return bi_crt(c->bi_ctx, bi_msg, c->dP, c->dQ, c->p, c->q, c->qInv); +#else + BI_CTX *ctx = c->bi_ctx; + ctx->mod_offset = BIGINT_M_OFFSET; + return bi_mod_power(ctx, bi_msg, c->d); +#endif +} + +#ifdef CONFIG_SSL_FULL_MODE +/** + * Used for diagnostics. + */ +void RSA_print(const RSA_CTX *rsa_ctx) +{ + if (rsa_ctx == NULL) + return; + + printf("----------------- RSA DEBUG ----------------\n"); + printf("Size:\t%d\n", rsa_ctx->num_octets); + bi_print("Modulus", rsa_ctx->m); + bi_print("Public Key", rsa_ctx->e); + bi_print("Private Key", rsa_ctx->d); +} +#endif + +#if defined(CONFIG_SSL_CERT_VERIFICATION) || defined(CONFIG_SSL_GENERATE_X509_CERT) +/** + * Performs c = m^e mod n + */ +bigint *RSA_public(const RSA_CTX * c, bigint *bi_msg) +{ + c->bi_ctx->mod_offset = BIGINT_M_OFFSET; + return bi_mod_power(c->bi_ctx, bi_msg, c->e); +} + +/** + * Use PKCS1.5 for encryption/signing. + * see http://www.rsasecurity.com/rsalabs/node.asp?id=2125 + */ +int RSA_encrypt(const RSA_CTX *ctx, const uint8_t *in_data, uint16_t in_len, + uint8_t *out_data, int is_signing) +{ + int byte_size = ctx->num_octets; + int num_pads_needed = byte_size-in_len-3; + bigint *dat_bi, *encrypt_bi; + + /* note: in_len+11 must be > byte_size */ + out_data[0] = 0; /* ensure encryption block is < modulus */ + + if (is_signing) + { + out_data[1] = 1; /* PKCS1.5 signing pads with "0xff"'s */ + memset(&out_data[2], 0xff, num_pads_needed); + } + else /* randomize the encryption padding with non-zero bytes */ + { + out_data[1] = 2; + get_random_NZ(num_pads_needed, &out_data[2]); + } + + out_data[2+num_pads_needed] = 0; + memcpy(&out_data[3+num_pads_needed], in_data, in_len); + + /* now encrypt it */ + dat_bi = bi_import(ctx->bi_ctx, out_data, byte_size); + encrypt_bi = is_signing ? RSA_private(ctx, dat_bi) : + RSA_public(ctx, dat_bi); + bi_export(ctx->bi_ctx, encrypt_bi, out_data, byte_size); + + /* save a few bytes of memory */ + bi_clear_cache(ctx->bi_ctx); + return byte_size; +} + +#endif /* CONFIG_SSL_CERT_VERIFICATION */ diff --git a/ccast/axTLS/sha1.c b/ccast/axTLS/sha1.c new file mode 100644 index 0000000..1082733 --- /dev/null +++ b/ccast/axTLS/sha1.c @@ -0,0 +1,249 @@ +/* + * Copyright (c) 2007, Cameron Rich + * + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * * Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * * Neither the name of the axTLS project nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, + * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF + * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING + * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +/** + * SHA1 implementation - as defined in FIPS PUB 180-1 published April 17, 1995. + * This code was originally taken from RFC3174 + */ + +#include +#include "os_port.h" +#include "crypto.h" + +/* + * Define the SHA1 circular left shift macro + */ +#define SHA1CircularShift(bits,word) \ + (((word) << (bits)) | ((word) >> (32-(bits)))) + +/* ----- static functions ----- */ +static void SHA1PadMessage(SHA1_CTX *ctx); +static void SHA1ProcessMessageBlock(SHA1_CTX *ctx); + +/** + * Initialize the SHA1 context + */ +void SHA1_Init(SHA1_CTX *ctx) +{ + ctx->Length_Low = 0; + ctx->Length_High = 0; + ctx->Message_Block_Index = 0; + ctx->Intermediate_Hash[0] = 0x67452301; + ctx->Intermediate_Hash[1] = 0xEFCDAB89; + ctx->Intermediate_Hash[2] = 0x98BADCFE; + ctx->Intermediate_Hash[3] = 0x10325476; + ctx->Intermediate_Hash[4] = 0xC3D2E1F0; +} + +/** + * Accepts an array of octets as the next portion of the message. + */ +void SHA1_Update(SHA1_CTX *ctx, const uint8_t *msg, int len) +{ + while (len--) + { + ctx->Message_Block[ctx->Message_Block_Index++] = (*msg & 0xFF); + ctx->Length_Low += 8; + + if (ctx->Length_Low == 0) + ctx->Length_High++; + + if (ctx->Message_Block_Index == 64) + SHA1ProcessMessageBlock(ctx); + + msg++; + } +} + +/** + * Return the 160-bit message digest into the user's array + */ +void SHA1_Final(uint8_t *digest, SHA1_CTX *ctx) +{ + int i; + + SHA1PadMessage(ctx); + memset(ctx->Message_Block, 0, 64); + ctx->Length_Low = 0; /* and clear length */ + ctx->Length_High = 0; + + for (i = 0; i < SHA1_SIZE; i++) + { + digest[i] = ctx->Intermediate_Hash[i>>2] >> 8 * ( 3 - ( i & 0x03 ) ); + } +} + +/** + * Process the next 512 bits of the message stored in the array. + */ +static void SHA1ProcessMessageBlock(SHA1_CTX *ctx) +{ + const uint32_t K[] = { /* Constants defined in SHA-1 */ + 0x5A827999, + 0x6ED9EBA1, + 0x8F1BBCDC, + 0xCA62C1D6 + }; + int t; /* Loop counter */ + uint32_t temp; /* Temporary word value */ + uint32_t W[80]; /* Word sequence */ + uint32_t A, B, C, D, E; /* Word buffers */ + + /* + * Initialize the first 16 words in the array W + */ + for (t = 0; t < 16; t++) + { + W[t] = ctx->Message_Block[t * 4] << 24; + W[t] |= ctx->Message_Block[t * 4 + 1] << 16; + W[t] |= ctx->Message_Block[t * 4 + 2] << 8; + W[t] |= ctx->Message_Block[t * 4 + 3]; + } + + for (t = 16; t < 80; t++) + { + W[t] = SHA1CircularShift(1,W[t-3] ^ W[t-8] ^ W[t-14] ^ W[t-16]); + } + + A = ctx->Intermediate_Hash[0]; + B = ctx->Intermediate_Hash[1]; + C = ctx->Intermediate_Hash[2]; + D = ctx->Intermediate_Hash[3]; + E = ctx->Intermediate_Hash[4]; + + for (t = 0; t < 20; t++) + { + temp = SHA1CircularShift(5,A) + + ((B & C) | ((~B) & D)) + E + W[t] + K[0]; + E = D; + D = C; + C = SHA1CircularShift(30,B); + + B = A; + A = temp; + } + + for (t = 20; t < 40; t++) + { + temp = SHA1CircularShift(5,A) + (B ^ C ^ D) + E + W[t] + K[1]; + E = D; + D = C; + C = SHA1CircularShift(30,B); + B = A; + A = temp; + } + + for (t = 40; t < 60; t++) + { + temp = SHA1CircularShift(5,A) + + ((B & C) | (B & D) | (C & D)) + E + W[t] + K[2]; + E = D; + D = C; + C = SHA1CircularShift(30,B); + B = A; + A = temp; + } + + for (t = 60; t < 80; t++) + { + temp = SHA1CircularShift(5,A) + (B ^ C ^ D) + E + W[t] + K[3]; + E = D; + D = C; + C = SHA1CircularShift(30,B); + B = A; + A = temp; + } + + ctx->Intermediate_Hash[0] += A; + ctx->Intermediate_Hash[1] += B; + ctx->Intermediate_Hash[2] += C; + ctx->Intermediate_Hash[3] += D; + ctx->Intermediate_Hash[4] += E; + ctx->Message_Block_Index = 0; +} + +/* + * According to the standard, the message must be padded to an even + * 512 bits. The first padding bit must be a '1'. The last 64 + * bits represent the length of the original message. All bits in + * between should be 0. This function will pad the message + * according to those rules by filling the Message_Block array + * accordingly. It will also call the ProcessMessageBlock function + * provided appropriately. When it returns, it can be assumed that + * the message digest has been computed. + * + * @param ctx [in, out] The SHA1 context + */ +static void SHA1PadMessage(SHA1_CTX *ctx) +{ + /* + * Check to see if the current message block is too small to hold + * the initial padding bits and length. If so, we will pad the + * block, process it, and then continue padding into a second + * block. + */ + if (ctx->Message_Block_Index > 55) + { + ctx->Message_Block[ctx->Message_Block_Index++] = 0x80; + while(ctx->Message_Block_Index < 64) + { + ctx->Message_Block[ctx->Message_Block_Index++] = 0; + } + + SHA1ProcessMessageBlock(ctx); + + while (ctx->Message_Block_Index < 56) + { + ctx->Message_Block[ctx->Message_Block_Index++] = 0; + } + } + else + { + ctx->Message_Block[ctx->Message_Block_Index++] = 0x80; + while(ctx->Message_Block_Index < 56) + { + + ctx->Message_Block[ctx->Message_Block_Index++] = 0; + } + } + + /* + * Store the message length as the last 8 octets + */ + ctx->Message_Block[56] = ctx->Length_High >> 24; + ctx->Message_Block[57] = ctx->Length_High >> 16; + ctx->Message_Block[58] = ctx->Length_High >> 8; + ctx->Message_Block[59] = ctx->Length_High; + ctx->Message_Block[60] = ctx->Length_Low >> 24; + ctx->Message_Block[61] = ctx->Length_Low >> 16; + ctx->Message_Block[62] = ctx->Length_Low >> 8; + ctx->Message_Block[63] = ctx->Length_Low; + SHA1ProcessMessageBlock(ctx); +} diff --git a/ccast/axTLS/ssl.h b/ccast/axTLS/ssl.h new file mode 100644 index 0000000..3f001da --- /dev/null +++ b/ccast/axTLS/ssl.h @@ -0,0 +1,513 @@ +/* + * Copyright (c) 2007, Cameron Rich + * + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * * Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * * Neither the name of the axTLS project nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, + * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF + * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING + * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +/** + * @mainpage axTLS API + * + * @image html axolotl.jpg + * + * The axTLS library has features such as: + * - The TLSv1 SSL client/server protocol + * - No requirement to use any openssl libraries. + * - A choice between AES block (128/256 bit) and RC4 (128 bit) stream ciphers. + * - RSA encryption/decryption with variable sized keys (up to 4096 bits). + * - Certificate chaining and peer authentication. + * - Session resumption, session renegotiation. + * - ASN.1, X.509, PKCS#8, PKCS#12 keys/certificates with DER/PEM encoding. + * - Highly configurable compile time options. + * - Portable across many platforms (written in ANSI C), and has language + * bindings in C, C#, VB.NET, Java, Perl and Lua. + * - Partial openssl API compatibility (via a wrapper). + * - A very small footprint (around 50-60kB for the library in 'server-only' + * mode). + * - No dependencies on sockets - can use serial connections for example. + * - A very simple API - ~ 20 functions/methods. + * + * A list of these functions/methods are described below. + * + * @ref c_api + * + * @ref bigint_api + * + * @ref csharp_api + * + * @ref java_api + */ +#ifndef HEADER_SSL_H +#define HEADER_SSL_H + +#ifdef __cplusplus +extern "C" { +#endif + +#include + +/* need to predefine before ssl_lib.h gets to it */ +#define SSL_SESSION_ID_SIZE 32 + +#include "tls1.h" + +/* The optional parameters that can be given to the client/server SSL engine */ +#define SSL_CLIENT_AUTHENTICATION 0x00010000 +#define SSL_SERVER_VERIFY_LATER 0x00020000 +#define SSL_NO_DEFAULT_KEY 0x00040000 +#define SSL_DISPLAY_STATES 0x00080000 +#define SSL_DISPLAY_BYTES 0x00100000 +#define SSL_DISPLAY_CERTS 0x00200000 +#define SSL_DISPLAY_RSA 0x00400000 +#define SSL_CONNECT_IN_PARTS 0x00800000 + +/* errors that can be generated */ +#define SSL_OK 0 +#define SSL_NOT_OK -1 +#define SSL_ERROR_DEAD -2 +#define SSL_CLOSE_NOTIFY -3 +#define SSL_TIMEDOUT -4 +#define SSL_ERROR_CONN_LOST -256 +#define SSL_ERROR_SOCK_SETUP_FAILURE -258 +#define SSL_ERROR_INVALID_HANDSHAKE -260 +#define SSL_ERROR_INVALID_PROT_MSG -261 +#define SSL_ERROR_INVALID_HMAC -262 +#define SSL_ERROR_INVALID_VERSION -263 +#define SSL_ERROR_INVALID_SESSION -265 +#define SSL_ERROR_NO_CIPHER -266 +#define SSL_ERROR_BAD_CERTIFICATE -268 +#define SSL_ERROR_INVALID_KEY -269 +#define SSL_ERROR_FINISHED_INVALID -271 +#define SSL_ERROR_NO_CERT_DEFINED -272 +#define SSL_ERROR_NO_CLIENT_RENOG -273 +#define SSL_ERROR_NOT_SUPPORTED -274 +#define SSL_X509_OFFSET -512 +#define SSL_X509_ERROR(A) (SSL_X509_OFFSET+A) + +/* alert types that are recognized */ +#define SSL_ALERT_TYPE_WARNING 1 +#define SLL_ALERT_TYPE_FATAL 2 + +/* these are all the alerts that are recognized */ +#define SSL_ALERT_CLOSE_NOTIFY 0 +#define SSL_ALERT_UNEXPECTED_MESSAGE 10 +#define SSL_ALERT_BAD_RECORD_MAC 20 +#define SSL_ALERT_HANDSHAKE_FAILURE 40 +#define SSL_ALERT_BAD_CERTIFICATE 42 +#define SSL_ALERT_ILLEGAL_PARAMETER 47 +#define SSL_ALERT_DECODE_ERROR 50 +#define SSL_ALERT_DECRYPT_ERROR 51 +#define SSL_ALERT_INVALID_VERSION 70 +#define SSL_ALERT_NO_RENEGOTIATION 100 + +/* The ciphers that are supported */ +#define SSL_AES128_SHA 0x2f +#define SSL_AES256_SHA 0x35 +#define SSL_RC4_128_SHA 0x05 +#define SSL_RC4_128_MD5 0x04 + +/* build mode ids' */ +#define SSL_BUILD_SKELETON_MODE 0x01 +#define SSL_BUILD_SERVER_ONLY 0x02 +#define SSL_BUILD_ENABLE_VERIFICATION 0x03 +#define SSL_BUILD_ENABLE_CLIENT 0x04 +#define SSL_BUILD_FULL_MODE 0x05 + +/* offsets to retrieve configuration information */ +#define SSL_BUILD_MODE 0 +#define SSL_MAX_CERT_CFG_OFFSET 1 +#define SSL_MAX_CA_CERT_CFG_OFFSET 2 +#define SSL_HAS_PEM 3 + +/* default session sizes */ +#define SSL_DEFAULT_SVR_SESS 5 +#define SSL_DEFAULT_CLNT_SESS 1 + +/* X.509/X.520 distinguished name types */ +#define SSL_X509_CERT_COMMON_NAME 0 +#define SSL_X509_CERT_ORGANIZATION 1 +#define SSL_X509_CERT_ORGANIZATIONAL_NAME 2 +#define SSL_X509_CA_CERT_COMMON_NAME 3 +#define SSL_X509_CA_CERT_ORGANIZATION 4 +#define SSL_X509_CA_CERT_ORGANIZATIONAL_NAME 5 + +/* SSL object loader types */ +#define SSL_OBJ_X509_CERT 1 +#define SSL_OBJ_X509_CACERT 2 +#define SSL_OBJ_RSA_KEY 3 +#define SSL_OBJ_PKCS8 4 +#define SSL_OBJ_PKCS12 5 + +/** + * @defgroup c_api Standard C API + * @brief The standard interface in C. + * @{ + */ + +/** + * @brief Establish a new client/server context. + * + * This function is called before any client/server SSL connections are made. + * + * Each new connection will use the this context's private key and + * certificate chain. If a different certificate chain is required, then a + * different context needs to be be used. + * + * There are two threading models supported - a single thread with one + * SSL_CTX can support any number of SSL connections - and multiple threads can + * support one SSL_CTX object each (the default). But if a single SSL_CTX + * object uses many SSL objects in individual threads, then the + * CONFIG_SSL_CTX_MUTEXING option needs to be configured. + * + * @param options [in] Any particular options. At present the options + * supported are: + * - SSL_SERVER_VERIFY_LATER (client only): Don't stop a handshake if the server + * authentication fails. The certificate can be authenticated later with a + * call to ssl_verify_cert(). + * - SSL_CLIENT_AUTHENTICATION (server only): Enforce client authentication + * i.e. each handshake will include a "certificate request" message from the + * server. Only available if verification has been enabled. + * - SSL_DISPLAY_BYTES (full mode build only): Display the byte sequences + * during the handshake. + * - SSL_DISPLAY_STATES (full mode build only): Display the state changes + * during the handshake. + * - SSL_DISPLAY_CERTS (full mode build only): Display the certificates that + * are passed during a handshake. + * - SSL_DISPLAY_RSA (full mode build only): Display the RSA key details that + * are passed during a handshake. + * - SSL_CONNECT_IN_PARTS (client only): To use a non-blocking version of + * ssl_client_new(). + * @param num_sessions [in] The number of sessions to be used for session + * caching. If this value is 0, then there is no session caching. This option + * is not used in skeleton mode. + * @return A client/server context. + */ +EXP_FUNC SSL_CTX * STDCALL ssl_ctx_new(uint32_t options, int num_sessions); + +/** + * @brief Remove a client/server context. + * + * Frees any used resources used by this context. Each connection will be + * sent a "Close Notify" alert (if possible). + * @param ssl_ctx [in] The client/server context. + */ +EXP_FUNC void STDCALL ssl_ctx_free(SSL_CTX *ssl_ctx); + +/** + * @brief (server only) Establish a new SSL connection to an SSL client. + * + * It is up to the application to establish the logical connection (whether it + * is a socket, serial connection etc). + * @param ssl_ctx [in] The server context. + * @param client_fd [in] The client's file descriptor. + * @return An SSL object reference. + */ +EXP_FUNC SSL * STDCALL ssl_server_new(SSL_CTX *ssl_ctx, int client_fd); + +/** + * @brief (client only) Establish a new SSL connection to an SSL server. + * + * It is up to the application to establish the initial logical connection + * (whether it is a socket, serial connection etc). + * + * This is a normally a blocking call - it will finish when the handshake is + * complete (or has failed). To use in non-blocking mode, set + * SSL_CONNECT_IN_PARTS in ssl_ctx_new(). + * @param ssl_ctx [in] The client context. + * @param client_fd [in] The client's file descriptor. + * @param session_id [in] A 32 byte session id for session resumption. This + * can be null if no session resumption is being used or required. This option + * is not used in skeleton mode. + * @param sess_id_size The size of the session id (max 32) + * @return An SSL object reference. Use ssl_handshake_status() to check + * if a handshake succeeded. + */ +EXP_FUNC SSL * STDCALL ssl_client_new(SSL_CTX *ssl_ctx, int client_fd, const uint8_t *session_id, uint8_t sess_id_size); + +/** + * @brief Free any used resources on this connection. + + * A "Close Notify" message is sent on this connection (if possible). It is up + * to the application to close the socket or file descriptor. + * @param ssl [in] The ssl object reference. + */ +EXP_FUNC void STDCALL ssl_free(SSL *ssl); + +/** + * @brief Read the SSL data stream. + * If the socket is non-blocking and data is blocked then SSO_OK will be + * returned. + * @param ssl [in] An SSL object reference. + * @param in_data [out] If the read was successful, a pointer to the read + * buffer will be here. Do NOT ever free this memory as this buffer is used in + * sucessive calls. If the call was unsuccessful, this value will be null. + * @return The number of decrypted bytes: + * - if > 0, then the handshaking is complete and we are returning the number + * of decrypted bytes. + * - SSL_OK if the handshaking stage is successful (but not yet complete). + * - < 0 if an error. + * @see ssl.h for the error code list. + * @note Use in_data before doing any successive ssl calls. + */ +EXP_FUNC int STDCALL ssl_read(SSL *ssl, uint8_t **in_data); + +/* Synchronous internal version of above used for protocol negotiation */ +EXP_FUNC int STDCALL ssl_readi(SSL *ssl, uint8_t **in_data); + +/** + * @brief Write to the SSL data stream. + * if the socket is non-blocking and data is blocked then a check is made + * to ensure that all data is sent (i.e. blocked mode is forced). + * @param ssl [in] An SSL obect reference. + * @param out_data [in] The data to be written + * @param out_len [in] The number of bytes to be written. + * @return The number of bytes sent, or if < 0 if an error. + * @see ssl.h for the error code list. + */ +EXP_FUNC int STDCALL ssl_write(SSL *ssl, const uint8_t *out_data, int out_len); + +/** + * @brief Find an ssl object based on a file descriptor. + * + * Goes through the list of SSL objects maintained in a client/server context + * to look for a file descriptor match. + * @param ssl_ctx [in] The client/server context. + * @param client_fd [in] The file descriptor. + * @return A reference to the SSL object. Returns null if the object could not + * be found. + */ +EXP_FUNC SSL * STDCALL ssl_find(SSL_CTX *ssl_ctx, int client_fd); + +/** + * @brief Get the session id for a handshake. + * + * This will be a 32 byte sequence and is available after the first + * handshaking messages are sent. + * @param ssl [in] An SSL object reference. + * @return The session id as a 32 byte sequence. + * @note A SSLv23 handshake may have only 16 valid bytes. + */ +EXP_FUNC const uint8_t * STDCALL ssl_get_session_id(const SSL *ssl); + +/** + * @brief Get the session id size for a handshake. + * + * This will normally be 32 but could be 0 (no session id) or something else. + * @param ssl [in] An SSL object reference. + * @return The size of the session id. + */ +EXP_FUNC uint8_t STDCALL ssl_get_session_id_size(const SSL *ssl); + +/** + * @brief Return the cipher id (in the SSL form). + * @param ssl [in] An SSL object reference. + * @return The cipher id. This will be one of the following: + * - SSL_AES128_SHA (0x2f) + * - SSL_AES256_SHA (0x35) + * - SSL_RC4_128_SHA (0x05) + * - SSL_RC4_128_MD5 (0x04) + */ +EXP_FUNC uint8_t STDCALL ssl_get_cipher_id(const SSL *ssl); + +/** + * @brief Return the status of the handshake. + * @param ssl [in] An SSL object reference. + * @return SSL_OK if the handshake is complete and ok. + * @see ssl.h for the error code list. + */ +EXP_FUNC int STDCALL ssl_handshake_status(const SSL *ssl); + +/** + * @brief Retrieve various parameters about the axTLS engine. + * @param offset [in] The configuration offset. It will be one of the following: + * - SSL_BUILD_MODE The build mode. This will be one of the following: + * - SSL_BUILD_SERVER_ONLY (basic server mode) + * - SSL_BUILD_ENABLE_VERIFICATION (server can do client authentication) + * - SSL_BUILD_ENABLE_CLIENT (client/server capabilties) + * - SSL_BUILD_FULL_MODE (client/server with diagnostics) + * - SSL_BUILD_SKELETON_MODE (skeleton mode) + * - SSL_MAX_CERT_CFG_OFFSET The maximum number of certificates allowed. + * - SSL_MAX_CA_CERT_CFG_OFFSET The maximum number of CA certificates allowed. + * - SSL_HAS_PEM 1 if supported + * @return The value of the requested parameter. + */ +EXP_FUNC int STDCALL ssl_get_config(int offset); + +/** + * @brief Return a string explaining why the handshake failed. + * + * This call is can be used by diagnostics elsewhere. + * @param error_code [in] An error code. + * @return The appropriate string, which may be static. + * @see ssl.h for the error code list. + */ +EXP_FUNC const char * STDCALL ssl_error_string(int error_code); + +/** + * @brief Display why the handshake failed. + * + * This call is only useful in a 'full mode' build. The output is to stdout. + * @param error_code [in] An error code. + * @see ssl.h for the error code list. + */ +EXP_FUNC void STDCALL ssl_display_error(int error_code); + +/** + * @brief Authenticate a received certificate. + * + * This call is usually made by a client after a handshake is complete and the + * context is in SSL_SERVER_VERIFY_LATER mode. + * @param ssl [in] An SSL object reference. + * @return SSL_OK if the certificate is verified. + */ +EXP_FUNC int STDCALL ssl_verify_cert(const SSL *ssl); + +/** + * @brief Retrieve an X.509 distinguished name component. + * + * When a handshake is complete and a certificate has been exchanged, then the + * details of the remote certificate can be retrieved. + * + * This will usually be used by a client to check that the server's common + * name matches the URL. + * + * @param ssl [in] An SSL object reference. + * @param component [in] one of: + * - SSL_X509_CERT_COMMON_NAME + * - SSL_X509_CERT_ORGANIZATION + * - SSL_X509_CERT_ORGANIZATIONAL_NAME + * - SSL_X509_CA_CERT_COMMON_NAME + * - SSL_X509_CA_CERT_ORGANIZATION + * - SSL_X509_CA_CERT_ORGANIZATIONAL_NAME + * @return The appropriate string (or null if not defined) + * @note Verification build mode must be enabled. + */ +EXP_FUNC const char * STDCALL ssl_get_cert_dn(const SSL *ssl, int component); + +/** + * @brief Retrieve a Subject Alternative DNSName + * + * When a handshake is complete and a certificate has been exchanged, then the + * details of the remote certificate can be retrieved. + * + * This will usually be used by a client to check that the server's DNS + * name matches the URL. + * + * @param ssl [in] An SSL object reference. + * @param dnsindex [in] The index of the DNS name to retrieve. + * @return The appropriate string (or null if not defined) + * @note Verification build mode must be enabled. + */ +EXP_FUNC const char * STDCALL ssl_get_cert_subject_alt_dnsname(const SSL *ssl, int dnsindex); + +/** + * @brief Force the client to perform its handshake again. + * + * For a client this involves sending another "client hello" message. + * For the server is means sending a "hello request" message. + * + * This is a blocking call on the client (until the handshake completes). + * + * @param ssl [in] An SSL object reference. + * @return SSL_OK if renegotiation instantiation was ok + */ +EXP_FUNC int STDCALL ssl_renegotiate(SSL *ssl); + +/** + * @brief Process a file that is in binary DER or ASCII PEM format. + * + * These are temporary objects that are used to load private keys, + * certificates etc into memory. + * @param ssl_ctx [in] The client/server context. + * @param obj_type [in] The format of the file. Can be one of: + * - SSL_OBJ_X509_CERT (no password required) + * - SSL_OBJ_X509_CACERT (no password required) + * - SSL_OBJ_RSA_KEY (AES128/AES256 PEM encryption supported) + * - SSL_OBJ_PKCS8 (RC4-128 encrypted data supported) + * - SSL_OBJ_PKCS12 (RC4-128 encrypted data supported) + * + * PEM files are automatically detected (if supported). The object type is + * also detected, and so is not relevant for these types of files. + * @param filename [in] The location of a file in DER/PEM format. + * @param password [in] The password used. Can be null if not required. + * @return SSL_OK if all ok + * @note Not available in skeleton build mode. + */ +EXP_FUNC int STDCALL ssl_obj_load(SSL_CTX *ssl_ctx, int obj_type, const char *filename, const char *password); + +/** + * @brief Process binary data. + * + * These are temporary objects that are used to load private keys, + * certificates etc into memory. + * @param ssl_ctx [in] The client/server context. + * @param obj_type [in] The format of the memory data. + * @param data [in] The binary data to be loaded. + * @param len [in] The amount of data to be loaded. + * @param password [in] The password used. Can be null if not required. + * @return SSL_OK if all ok + * @see ssl_obj_load for more details on obj_type. + */ +EXP_FUNC int STDCALL ssl_obj_memory_load(SSL_CTX *ssl_ctx, int obj_type, const uint8_t *data, int len, const char *password); + +#ifdef CONFIG_SSL_GENERATE_X509_CERT +/** + * @brief Create an X.509 certificate. + * + * This certificate is a self-signed v1 cert with a fixed start/stop validity + * times. It is signed with an internal private key in ssl_ctx. + * + * @param ssl_ctx [in] The client/server context. + * @param options [in] Not used yet. + * @param dn [in] An array of distinguished name strings. The array is defined + * by: + * - SSL_X509_CERT_COMMON_NAME (0) + * - If SSL_X509_CERT_COMMON_NAME is empty or not defined, then the + * hostname will be used. + * - SSL_X509_CERT_ORGANIZATION (1) + * - If SSL_X509_CERT_ORGANIZATION is empty or not defined, then $USERNAME + * will be used. + * - SSL_X509_CERT_ORGANIZATIONAL_NAME (2) + * - SSL_X509_CERT_ORGANIZATIONAL_NAME is optional. + * @param cert_data [out] The certificate as a sequence of bytes. + * @return < 0 if an error, or the size of the certificate in bytes. + * @note cert_data must be freed when there is no more need for it. + */ +EXP_FUNC int STDCALL ssl_x509_create(SSL_CTX *ssl_ctx, uint32_t options, const char * dn[], uint8_t **cert_data); +#endif + +/** + * @brief Return the axTLS library version as a string. + */ +EXP_FUNC const char * STDCALL ssl_version(void); + +/** @} */ + +#ifdef __cplusplus +} +#endif + +#endif diff --git a/ccast/axTLS/temp b/ccast/axTLS/temp new file mode 100644 index 0000000..859e8be --- /dev/null +++ b/ccast/axTLS/temp @@ -0,0 +1,2 @@ +// ~~~~9999 +printf("~1 SOCKET_READ to off %d returned len %d for req %d to 0x%x\n",ssl->bm_read_index, read_len, ssl->need_bytes-ssl->got_bytes,&buf[ssl->bm_read_index]); diff --git a/ccast/axTLS/tls1.c b/ccast/axTLS/tls1.c new file mode 100644 index 0000000..b635263 --- /dev/null +++ b/ccast/axTLS/tls1.c @@ -0,0 +1,2411 @@ +/* + * Copyright (c) 2007, Cameron Rich + * + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * * Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * * Neither the name of the axTLS project nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, + * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF + * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING + * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +/** + * Common ssl/tlsv1 code to both the client and server implementations. + */ + +#include +#include +#include +#include +#include "os_port.h" +#include "crypto_misc.h" +#include "ssl.h" + +/* The session expiry time */ +#define SSL_EXPIRY_TIME (CONFIG_SSL_EXPIRY_TIME*3600) + +static const uint8_t g_hello_request[] = { HS_HELLO_REQUEST, 0, 0, 0 }; +static const uint8_t g_chg_cipher_spec_pkt[] = { 1 }; +static const char * server_finished = "server finished"; +static const char * client_finished = "client finished"; + +static int do_handshake(SSL *ssl, uint8_t *buf, int read_len); +static int set_key_block(SSL *ssl, int is_write); +static int verify_digest(SSL *ssl, int mode, uint8_t * hmac_header, + const uint8_t *buf, int read_len); +static void *crypt_new(SSL *ssl, uint8_t *key, uint8_t *iv, int is_decrypt); +static int send_raw_packet(SSL *ssl, uint8_t protocol); + +/** + * The server will pick the cipher based on the order that the order that the + * ciphers are listed. This order is defined at compile time. + */ +#ifdef CONFIG_SSL_SKELETON_MODE +const uint8_t ssl_prot_prefs[NUM_PROTOCOLS] = +{ SSL_RC4_128_SHA }; +#else +static void session_free(SSL_SESSION *ssl_sessions[], int sess_index); + +const uint8_t ssl_prot_prefs[NUM_PROTOCOLS] = +#ifdef CONFIG_SSL_PROT_LOW /* low security, fast speed */ +{ SSL_RC4_128_SHA, SSL_AES128_SHA, SSL_AES256_SHA, SSL_RC4_128_MD5 }; +#elif defined(CONFIG_SSL_PROT_MEDIUM) /* medium security, medium speed */ +{ SSL_AES128_SHA, SSL_AES256_SHA, SSL_RC4_128_SHA, SSL_RC4_128_MD5 }; +#else /* CONFIG_SSL_PROT_HIGH */ /* high security, low speed */ +{ SSL_AES256_SHA, SSL_AES128_SHA, SSL_RC4_128_SHA, SSL_RC4_128_MD5 }; +#endif +#endif /* CONFIG_SSL_SKELETON_MODE */ + +/** + * The cipher map containing all the essentials for each cipher. + */ +#ifdef CONFIG_SSL_SKELETON_MODE +static const cipher_info_t cipher_info[NUM_PROTOCOLS] = +{ + { /* RC4-SHA */ + SSL_RC4_128_SHA, /* RC4-SHA */ + 16, /* key size */ + 0, /* iv size */ + 2*(SHA1_SIZE+16), /* key block size */ + 0, /* no padding */ + SHA1_SIZE, /* digest size */ + hmac_sha1, /* hmac algorithm */ + (crypt_func)RC4_crypt, /* encrypt */ + (crypt_func)RC4_crypt /* decrypt */ + }, +}; +#else +static const cipher_info_t cipher_info[NUM_PROTOCOLS] = +{ + { /* AES128-SHA */ + SSL_AES128_SHA, /* AES128-SHA */ + 16, /* key size */ + 16, /* iv size */ + 2*(SHA1_SIZE+16+16), /* key block size */ + 16, /* block padding size */ + SHA1_SIZE, /* digest size */ + hmac_sha1, /* hmac algorithm */ + (crypt_func)AES_cbc_encrypt, /* encrypt */ + (crypt_func)AES_cbc_decrypt /* decrypt */ + }, + { /* AES256-SHA */ + SSL_AES256_SHA, /* AES256-SHA */ + 32, /* key size */ + 16, /* iv size */ + 2*(SHA1_SIZE+32+16), /* key block size */ + 16, /* block padding size */ + SHA1_SIZE, /* digest size */ + hmac_sha1, /* hmac algorithm */ + (crypt_func)AES_cbc_encrypt, /* encrypt */ + (crypt_func)AES_cbc_decrypt /* decrypt */ + }, + { /* RC4-SHA */ + SSL_RC4_128_SHA, /* RC4-SHA */ + 16, /* key size */ + 0, /* iv size */ + 2*(SHA1_SIZE+16), /* key block size */ + 0, /* no padding */ + SHA1_SIZE, /* digest size */ + hmac_sha1, /* hmac algorithm */ + (crypt_func)RC4_crypt, /* encrypt */ + (crypt_func)RC4_crypt /* decrypt */ + }, + /* + * This protocol is from SSLv2 days and is unlikely to be used - but was + * useful for testing different possible digest algorithms. + */ + { /* RC4-MD5 */ + SSL_RC4_128_MD5, /* RC4-MD5 */ + 16, /* key size */ + 0, /* iv size */ + 2*(MD5_SIZE+16), /* key block size */ + 0, /* no padding */ + MD5_SIZE, /* digest size */ + hmac_md5, /* hmac algorithm */ + (crypt_func)RC4_crypt, /* encrypt */ + (crypt_func)RC4_crypt /* decrypt */ + }, +}; +#endif + +static void prf(const uint8_t *sec, int sec_len, uint8_t *seed, int seed_len, + uint8_t *out, int olen); +static const cipher_info_t *get_cipher_info(uint8_t cipher); +static void increment_read_sequence(SSL *ssl); +static void increment_write_sequence(SSL *ssl); +static void add_hmac_digest(SSL *ssl, int snd, uint8_t *hmac_header, + const uint8_t *buf, int buf_len, uint8_t *hmac_buf); + +/* win32 VC6.0 doesn't have variadic macros */ +#if defined(WIN32) && !defined(CONFIG_SSL_FULL_MODE) +void DISPLAY_BYTES(SSL *ssl, const char *format, + const uint8_t *data, int size, ...) {} +#endif + +/** + * Establish a new client/server context. + */ +EXP_FUNC SSL_CTX *STDCALL ssl_ctx_new(uint32_t options, int num_sessions) +{ + SSL_CTX *ssl_ctx = (SSL_CTX *)calloc(1, sizeof (SSL_CTX)); + ssl_ctx->options = options; + RNG_initialize(); + + if (load_key_certs(ssl_ctx) < 0) + { + free(ssl_ctx); /* can't load our key/certificate pair, so die */ + return NULL; + } + +#ifndef CONFIG_SSL_SKELETON_MODE + ssl_ctx->num_sessions = num_sessions; +#endif + + SSL_CTX_MUTEX_INIT(ssl_ctx->mutex); + +#ifndef CONFIG_SSL_SKELETON_MODE + if (num_sessions) + { + ssl_ctx->ssl_sessions = (SSL_SESSION **) + calloc(1, num_sessions*sizeof(SSL_SESSION *)); + } +#endif + + return ssl_ctx; +} + +/* + * Remove a client/server context. + */ +EXP_FUNC void STDCALL ssl_ctx_free(SSL_CTX *ssl_ctx) +{ + SSL *ssl; + int i; + + if (ssl_ctx == NULL) + return; + + ssl = ssl_ctx->head; + + /* clear out all the ssl entries */ + while (ssl) + { + SSL *next = ssl->next; + ssl_free(ssl); + ssl = next; + } + +#ifndef CONFIG_SSL_SKELETON_MODE + /* clear out all the sessions */ + for (i = 0; i < ssl_ctx->num_sessions; i++) + session_free(ssl_ctx->ssl_sessions, i); + + free(ssl_ctx->ssl_sessions); +#endif + + i = 0; + while (i < CONFIG_SSL_MAX_CERTS && ssl_ctx->certs[i].buf) + { + free(ssl_ctx->certs[i].buf); + ssl_ctx->certs[i++].buf = NULL; + } + +#ifdef CONFIG_SSL_CERT_VERIFICATION + remove_ca_certs(ssl_ctx->ca_cert_ctx); +#endif + ssl_ctx->chain_length = 0; + SSL_CTX_MUTEX_DESTROY(ssl_ctx->mutex); + RSA_free(ssl_ctx->rsa_ctx); + RNG_terminate(); + free(ssl_ctx); +} + +/* + * Free any used resources used by this connection. + */ +EXP_FUNC void STDCALL ssl_free(SSL *ssl) +{ + SSL_CTX *ssl_ctx; + + if (ssl == NULL) /* just ignore null pointers */ + return; + + /* only notify if we weren't notified first */ + /* spec says we must notify when we are dying */ + if (!IS_SET_SSL_FLAG(SSL_SENT_CLOSE_NOTIFY)) + send_alert(ssl, SSL_ALERT_CLOSE_NOTIFY); + + ssl_ctx = ssl->ssl_ctx; + + SSL_CTX_LOCK(ssl_ctx->mutex); + + /* adjust the server SSL list */ + if (ssl->prev) + ssl->prev->next = ssl->next; + else + ssl_ctx->head = ssl->next; + + if (ssl->next) + ssl->next->prev = ssl->prev; + else + ssl_ctx->tail = ssl->prev; + + SSL_CTX_UNLOCK(ssl_ctx->mutex); + + /* may already be free - but be sure */ + free(ssl->encrypt_ctx); + free(ssl->decrypt_ctx); + disposable_free(ssl); +#ifdef CONFIG_SSL_CERT_VERIFICATION + x509_free(ssl->x509_ctx); +#endif + + free(ssl); +} + +/* + * Client read the SSL connection and send any alerts for various errors. + * (Not used for protocol negotiation, but can be called asynchronously + * to ssl_write()) + */ +EXP_FUNC int STDCALL ssl_read(SSL *ssl, uint8_t **in_data) +{ + int ret; + ret = basic_read(ssl, in_data); + + /* check for return code so we can send an alert */ + if (ret < SSL_OK && ret != SSL_CLOSE_NOTIFY + && ret != SSL_TIMEDOUT) + { + if (ret != SSL_ERROR_CONN_LOST) + { + send_alert(ssl, ret); +#ifndef CONFIG_SSL_SKELETON_MODE + /* something nasty happened, so get rid of this session */ + kill_ssl_session(ssl->ssl_ctx->ssl_sessions, ssl); +#endif + } + } + + return ret; +} + +/* + * Internal read the SSL connection used for setup + */ +EXP_FUNC int STDCALL ssl_readi(SSL *ssl, uint8_t **in_data) +{ + int ret; + ret = basic_readi(ssl, in_data); + + /* check for return code so we can send an alert */ + if (ret < SSL_OK && ret != SSL_CLOSE_NOTIFY + && ret != SSL_TIMEDOUT) + { + if (ret != SSL_ERROR_CONN_LOST) + { + send_alert(ssl, ret); +#ifndef CONFIG_SSL_SKELETON_MODE + /* something nasty happened, so get rid of this session */ + kill_ssl_session(ssl->ssl_ctx->ssl_sessions, ssl); +#endif + } + } + + return ret; +} + +/* + * Write application data to the client + */ +EXP_FUNC int STDCALL ssl_write(SSL *ssl, const uint8_t *out_data, int out_len) +{ + int n = out_len, nw, i, tot = 0; + + /* maximum size of a TLS packet is around 16kB, so fragment */ + do + { + nw = n; + + if (nw > RT_MAX_PLAIN_LENGTH) /* fragment if necessary */ + nw = RT_MAX_PLAIN_LENGTH; + + if ((i = send_packet(ssl, PT_APP_PROTOCOL_DATA, + &out_data[tot], nw)) <= 0) + { + out_len = i; /* an error */ + break; + } + + tot += i; + n -= i; + } while (n > 0); + + return out_len; +} + +/** + * Add a certificate to the certificate chain. + */ +int add_cert(SSL_CTX *ssl_ctx, const uint8_t *buf, int len) +{ + int ret = SSL_ERROR_NO_CERT_DEFINED, i = 0; + SSL_CERT *ssl_cert; + X509_CTX *cert = NULL; + int offset; + + while (ssl_ctx->certs[i].buf && i < CONFIG_SSL_MAX_CERTS) + i++; + + if (i == CONFIG_SSL_MAX_CERTS) /* too many certs */ + { +#ifdef CONFIG_SSL_FULL_MODE + printf("Error: maximum number of certs added (%d) - change of " + "compile-time configuration required\n", + CONFIG_SSL_MAX_CERTS); +#endif + goto error; + } + + if ((ret = x509_new(buf, &offset, &cert))) + goto error; + +#if defined (CONFIG_SSL_FULL_MODE) + if (ssl_ctx->options & SSL_DISPLAY_CERTS) + x509_print(cert, NULL); +#endif + + ssl_cert = &ssl_ctx->certs[i]; + ssl_cert->size = len; + ssl_cert->buf = (uint8_t *)malloc(len); + memcpy(ssl_cert->buf, buf, len); + ssl_ctx->chain_length++; + len -= offset; + ret = SSL_OK; /* ok so far */ + + /* recurse? */ + if (len > 0) + { + ret = add_cert(ssl_ctx, &buf[offset], len); + } + +error: + x509_free(cert); /* don't need anymore */ + return ret; +} + +#ifdef CONFIG_SSL_CERT_VERIFICATION +/** + * Add a certificate authority. + */ +int add_cert_auth(SSL_CTX *ssl_ctx, const uint8_t *buf, int len) +{ + int ret = SSL_OK; /* ignore errors for now */ + int i = 0; + CA_CERT_CTX *ca_cert_ctx; + + if (ssl_ctx->ca_cert_ctx == NULL) + ssl_ctx->ca_cert_ctx = (CA_CERT_CTX *)calloc(1, sizeof(CA_CERT_CTX)); + + ca_cert_ctx = ssl_ctx->ca_cert_ctx; + + while (i < CONFIG_X509_MAX_CA_CERTS && ca_cert_ctx->cert[i]) + i++; + + while (len > 0) + { + int offset; + if (i >= CONFIG_X509_MAX_CA_CERTS) + { +#ifdef CONFIG_SSL_FULL_MODE + printf("Error: maximum number of CA certs added (%d) - change of " + "compile-time configuration required\n", + CONFIG_X509_MAX_CA_CERTS); +#endif + break; + } + + + /* ignore the return code */ + if (x509_new(buf, &offset, &ca_cert_ctx->cert[i]) == X509_OK) + { +#if defined (CONFIG_SSL_FULL_MODE) + if (ssl_ctx->options & SSL_DISPLAY_CERTS) + x509_print(ca_cert_ctx->cert[i], NULL); +#endif + } + + i++; + len -= offset; + } + + return ret; +} + +/* + * Retrieve an X.509 distinguished name component + */ +EXP_FUNC const char * STDCALL ssl_get_cert_dn(const SSL *ssl, int component) +{ + if (ssl->x509_ctx == NULL) + return NULL; + + switch (component) + { + case SSL_X509_CERT_COMMON_NAME: + return ssl->x509_ctx->cert_dn[X509_COMMON_NAME]; + + case SSL_X509_CERT_ORGANIZATION: + return ssl->x509_ctx->cert_dn[X509_ORGANIZATION]; + + case SSL_X509_CERT_ORGANIZATIONAL_NAME: + return ssl->x509_ctx->cert_dn[X509_ORGANIZATIONAL_UNIT]; + + case SSL_X509_CA_CERT_COMMON_NAME: + return ssl->x509_ctx->ca_cert_dn[X509_COMMON_NAME]; + + case SSL_X509_CA_CERT_ORGANIZATION: + return ssl->x509_ctx->ca_cert_dn[X509_ORGANIZATION]; + + case SSL_X509_CA_CERT_ORGANIZATIONAL_NAME: + return ssl->x509_ctx->ca_cert_dn[X509_ORGANIZATIONAL_UNIT]; + + default: + return NULL; + } +} + +/* + * Retrieve a "Subject Alternative Name" from a v3 certificate + */ +EXP_FUNC const char * STDCALL ssl_get_cert_subject_alt_dnsname(const SSL *ssl, + int dnsindex) +{ + int i; + + if (ssl->x509_ctx == NULL || ssl->x509_ctx->subject_alt_dnsnames == NULL) + return NULL; + + for (i = 0; i < dnsindex; ++i) + { + if (ssl->x509_ctx->subject_alt_dnsnames[i] == NULL) + return NULL; + } + + return ssl->x509_ctx->subject_alt_dnsnames[dnsindex]; +} + +#endif /* CONFIG_SSL_CERT_VERIFICATION */ + +/* + * Find an ssl object based on the client's file descriptor. + */ +EXP_FUNC SSL * STDCALL ssl_find(SSL_CTX *ssl_ctx, int client_fd) +{ + SSL *ssl; + + SSL_CTX_LOCK(ssl_ctx->mutex); + ssl = ssl_ctx->head; + + /* search through all the ssl entries */ + while (ssl) + { + if (ssl->client_fd == client_fd) + { + SSL_CTX_UNLOCK(ssl_ctx->mutex); + return ssl; + } + + ssl = ssl->next; + } + + SSL_CTX_UNLOCK(ssl_ctx->mutex); + return NULL; +} + +/* + * Force the client to perform its handshake again. + */ +EXP_FUNC int STDCALL ssl_renegotiate(SSL *ssl) +{ + int ret = SSL_OK; + + disposable_new(ssl); +#ifdef CONFIG_SSL_ENABLE_CLIENT + if (IS_SET_SSL_FLAG(SSL_IS_CLIENT)) + { + ret = do_client_connect(ssl); + } + else +#endif + { + send_packet(ssl, PT_HANDSHAKE_PROTOCOL, + g_hello_request, sizeof(g_hello_request)); + SET_SSL_FLAG(SSL_NEED_RECORD); + ssl->need_record = 1; + } + + return ret; +} + +/** + * @brief Get what we need for key info. + * @param cipher [in] The cipher information we are after + * @param key_size [out] The key size for the cipher + * @param iv_size [out] The iv size for the cipher + * @return The amount of key information we need. + */ +static const cipher_info_t *get_cipher_info(uint8_t cipher) +{ + int i; + + for (i = 0; i < NUM_PROTOCOLS; i++) + { + if (cipher_info[i].cipher == cipher) + { + return &cipher_info[i]; + } + } + + return NULL; /* error */ +} + +/* + * Get a new ssl context for a new connection. + */ +SSL *ssl_new(SSL_CTX *ssl_ctx, int client_fd) +{ + SSL *ssl = (SSL *)calloc(1, sizeof(SSL)); + ssl->ssl_ctx = ssl_ctx; + ssl->client_fd = client_fd; + ssl->need_bytes = SSL_RECORD_SIZE; /* need a record */ + ssl->flag = SSL_NEED_RECORD; + ssl->bm_data = ssl->bm_all_data+BM_RECORD_OFFSET; /* space at the start */ + ssl->rneed_bytes = SSL_RECORD_SIZE; /* need a record */ + ssl->need_record = 1; + ssl->bm_rdata = ssl->bm_read_data+BM_RECORD_OFFSET; /* space at the start */ + ssl->hs_status = SSL_NOT_OK; /* not connected */ +#ifdef CONFIG_ENABLE_VERIFICATION + ssl->ca_cert_ctx = ssl_ctx->ca_cert_ctx; +#endif + disposable_new(ssl); + + /* a bit hacky but saves a few bytes of memory */ + ssl->flag |= ssl_ctx->options; + SSL_CTX_LOCK(ssl_ctx->mutex); + + if (ssl_ctx->head == NULL) + { + ssl_ctx->head = ssl; + ssl_ctx->tail = ssl; + } + else + { + ssl->prev = ssl_ctx->tail; + ssl_ctx->tail->next = ssl; + ssl_ctx->tail = ssl; + } + + SSL_CTX_UNLOCK(ssl_ctx->mutex); + return ssl; +} + +/* + * Add a private key to a context. + */ +int add_private_key(SSL_CTX *ssl_ctx, SSLObjLoader *ssl_obj) +{ + int ret = SSL_OK; + + /* get the private key details */ + if (asn1_get_private_key(ssl_obj->buf, ssl_obj->len, &ssl_ctx->rsa_ctx)) + { + ret = SSL_ERROR_INVALID_KEY; + goto error; + } + +error: + return ret; +} + +/** + * Increment the read sequence number (as a 64 bit endian indepenent #) + */ +static void increment_read_sequence(SSL *ssl) +{ + int i; + + for (i = 7; i >= 0; i--) + { + if (++ssl->read_sequence[i]) + break; + } +} + +/** + * Increment the read sequence number (as a 64 bit endian indepenent #) + */ +static void increment_write_sequence(SSL *ssl) +{ + int i; + + for (i = 7; i >= 0; i--) + { + if (++ssl->write_sequence[i]) + break; + } +} + +/** + * Work out the HMAC digest in a packet. + */ +static void add_hmac_digest(SSL *ssl, int mode, uint8_t *hmac_header, + const uint8_t *buf, int buf_len, uint8_t *hmac_buf) +{ + int hmac_len = buf_len + 8 + SSL_RECORD_SIZE; + uint8_t *t_buf = (uint8_t *)malloc(hmac_len+10); + + memcpy(t_buf, (mode == SSL_SERVER_WRITE || mode == SSL_CLIENT_WRITE) ? + ssl->write_sequence : ssl->read_sequence, 8); + memcpy(&t_buf[8], hmac_header, SSL_RECORD_SIZE); + memcpy(&t_buf[8+SSL_RECORD_SIZE], buf, buf_len); + + ssl->cipher_info->hmac(t_buf, hmac_len, + (mode == SSL_SERVER_WRITE || mode == SSL_CLIENT_READ) ? + ssl->server_mac : ssl->client_mac, + ssl->cipher_info->digest_size, hmac_buf); + + free(t_buf); + +#if 0 + print_blob("record", hmac_header, SSL_RECORD_SIZE); + print_blob("buf", buf, buf_len); + if (mode == SSL_SERVER_WRITE || mode == SSL_CLIENT_WRITE) + { + print_blob("write seq", ssl->write_sequence, 8); + } + else + { + print_blob("read seq", ssl->read_sequence, 8); + } + + if (mode == SSL_SERVER_WRITE || mode == SSL_CLIENT_READ) + { + print_blob("server mac", + ssl->server_mac, ssl->cipher_info->digest_size); + } + else + { + print_blob("client mac", + ssl->client_mac, ssl->cipher_info->digest_size); + } + print_blob("hmac", hmac_buf, SHA1_SIZE); +#endif +} + +/** + * Verify that the digest of a packet is correct. + */ +static int verify_digest(SSL *ssl, int mode, uint8_t *hmac_header, + const uint8_t *buf, int read_len) +{ + uint8_t hmac_buf[SHA1_SIZE]; + int hmac_offset; + + if (ssl->cipher_info->padding_size) + { + int last_blk_size = buf[read_len-1], i; + hmac_offset = read_len-last_blk_size-ssl->cipher_info->digest_size-1; + + /* guard against a timing attack - make sure we do the digest */ + if (hmac_offset < 0) + { + hmac_offset = 0; + } + else + { + /* already looked at last byte */ + for (i = 1; i < last_blk_size; i++) + { + if (buf[read_len-i] != last_blk_size) + { + hmac_offset = 0; + break; + } + } + } + } + else /* stream cipher */ + { + hmac_offset = read_len - ssl->cipher_info->digest_size; + + if (hmac_offset < 0) + { + hmac_offset = 0; + } + } + + /* sanity check the offset */ + hmac_header[3] = hmac_offset >> 8; /* insert size */ + hmac_header[4] = hmac_offset & 0xff; + add_hmac_digest(ssl, mode, hmac_header, buf, hmac_offset, hmac_buf); + + if (memcmp(hmac_buf, &buf[hmac_offset], ssl->cipher_info->digest_size)) + { + return SSL_ERROR_INVALID_HMAC; + } + + return hmac_offset; +} + +/** + * Add a packet to the end of our sent and received packets, so that we may use + * it to calculate the hash at the end. + */ +void add_packet(SSL *ssl, const uint8_t *pkt, int len) +{ + MD5_Update(&ssl->dc->md5_ctx, pkt, len); + SHA1_Update(&ssl->dc->sha1_ctx, pkt, len); +} + +/** + * Work out the MD5 PRF. + */ +static void p_hash_md5(const uint8_t *sec, int sec_len, + uint8_t *seed, int seed_len, uint8_t *out, int olen) +{ + uint8_t a1[128]; + + /* A(1) */ + hmac_md5(seed, seed_len, sec, sec_len, a1); + memcpy(&a1[MD5_SIZE], seed, seed_len); + hmac_md5(a1, MD5_SIZE+seed_len, sec, sec_len, out); + + while (olen > MD5_SIZE) + { + uint8_t a2[MD5_SIZE]; + out += MD5_SIZE; + olen -= MD5_SIZE; + + /* A(N) */ + hmac_md5(a1, MD5_SIZE, sec, sec_len, a2); + memcpy(a1, a2, MD5_SIZE); + + /* work out the actual hash */ + hmac_md5(a1, MD5_SIZE+seed_len, sec, sec_len, out); + } +} + +/** + * Work out the SHA1 PRF. + */ +static void p_hash_sha1(const uint8_t *sec, int sec_len, + uint8_t *seed, int seed_len, uint8_t *out, int olen) +{ + uint8_t a1[128]; + + /* A(1) */ + hmac_sha1(seed, seed_len, sec, sec_len, a1); + memcpy(&a1[SHA1_SIZE], seed, seed_len); + hmac_sha1(a1, SHA1_SIZE+seed_len, sec, sec_len, out); + + while (olen > SHA1_SIZE) + { + uint8_t a2[SHA1_SIZE]; + out += SHA1_SIZE; + olen -= SHA1_SIZE; + + /* A(N) */ + hmac_sha1(a1, SHA1_SIZE, sec, sec_len, a2); + memcpy(a1, a2, SHA1_SIZE); + + /* work out the actual hash */ + hmac_sha1(a1, SHA1_SIZE+seed_len, sec, sec_len, out); + } +} + +/** + * Work out the PRF. + */ +static void prf(const uint8_t *sec, int sec_len, uint8_t *seed, int seed_len, + uint8_t *out, int olen) +{ + int len, i; + const uint8_t *S1, *S2; + uint8_t xbuf[256]; /* needs to be > the amount of key data */ + uint8_t ybuf[256]; /* needs to be > the amount of key data */ + + len = sec_len/2; + S1 = sec; + S2 = &sec[len]; + len += (sec_len & 1); /* add for odd, make longer */ + + p_hash_md5(S1, len, seed, seed_len, xbuf, olen); + p_hash_sha1(S2, len, seed, seed_len, ybuf, olen); + + for (i = 0; i < olen; i++) + out[i] = xbuf[i] ^ ybuf[i]; +} + +/** + * Generate a master secret based on the client/server random data and the + * premaster secret. + */ +void generate_master_secret(SSL *ssl, const uint8_t *premaster_secret) +{ + uint8_t buf[128]; /* needs to be > 13+32+32 in size */ + strcpy((char *)buf, "master secret"); + memcpy(&buf[13], ssl->dc->client_random, SSL_RANDOM_SIZE); + memcpy(&buf[45], ssl->dc->server_random, SSL_RANDOM_SIZE); + prf(premaster_secret, SSL_SECRET_SIZE, buf, 77, ssl->dc->master_secret, + SSL_SECRET_SIZE); +} + +/** + * Generate a 'random' blob of data used for the generation of keys. + */ +static void generate_key_block(uint8_t *client_random, uint8_t *server_random, + uint8_t *master_secret, uint8_t *key_block, int key_block_size) +{ + uint8_t buf[128]; + strcpy((char *)buf, "key expansion"); + memcpy(&buf[13], server_random, SSL_RANDOM_SIZE); + memcpy(&buf[45], client_random, SSL_RANDOM_SIZE); + prf(master_secret, SSL_SECRET_SIZE, buf, 77, key_block, key_block_size); +} + +/** + * Calculate the digest used in the finished message. This function also + * doubles up as a certificate verify function. + */ +void finished_digest(SSL *ssl, const char *label, uint8_t *digest) +{ + uint8_t mac_buf[128]; + uint8_t *q = mac_buf; + MD5_CTX md5_ctx = ssl->dc->md5_ctx; + SHA1_CTX sha1_ctx = ssl->dc->sha1_ctx; + + if (label) + { + strcpy((char *)q, label); + q += strlen(label); + } + + MD5_Final(q, &md5_ctx); + q += MD5_SIZE; + + SHA1_Final(q, &sha1_ctx); + q += SHA1_SIZE; + + if (label) + { + prf(ssl->dc->master_secret, SSL_SECRET_SIZE, mac_buf, (int)(q-mac_buf), + digest, SSL_FINISHED_HASH_SIZE); + } + else /* for use in a certificate verify */ + { + memcpy(digest, mac_buf, MD5_SIZE + SHA1_SIZE); + } + +#if 0 + printf("label: %s\n", label); + print_blob("master secret", ssl->dc->master_secret, 48); + print_blob("mac_buf", mac_buf, q-mac_buf); + print_blob("finished digest", digest, SSL_FINISHED_HASH_SIZE); +#endif +} + +/** + * Retrieve (and initialise) the context of a cipher. + */ +static void *crypt_new(SSL *ssl, uint8_t *key, uint8_t *iv, int is_decrypt) +{ + switch (ssl->cipher) + { +#ifndef CONFIG_SSL_SKELETON_MODE + case SSL_AES128_SHA: + { + AES_CTX *aes_ctx = (AES_CTX *)malloc(sizeof(AES_CTX)); + AES_set_key(aes_ctx, key, iv, AES_MODE_128); + + if (is_decrypt) + { + AES_convert_key(aes_ctx); + } + + return (void *)aes_ctx; + } + + case SSL_AES256_SHA: + { + AES_CTX *aes_ctx = (AES_CTX *)malloc(sizeof(AES_CTX)); + AES_set_key(aes_ctx, key, iv, AES_MODE_256); + + if (is_decrypt) + { + AES_convert_key(aes_ctx); + } + + return (void *)aes_ctx; + } + + case SSL_RC4_128_MD5: +#endif + case SSL_RC4_128_SHA: + { + RC4_CTX *rc4_ctx = (RC4_CTX *)malloc(sizeof(RC4_CTX)); + RC4_setup(rc4_ctx, key, 16); + return (void *)rc4_ctx; + } + } + + return NULL; /* its all gone wrong */ +} + +/** + * Send a packet over the socket. + */ +static int send_raw_packet(SSL *ssl, uint8_t protocol) +{ + uint8_t *rec_buf = ssl->bm_all_data; + int pkt_size = SSL_RECORD_SIZE+ssl->bm_index; + int sent = 0; + int ret = SSL_OK; + + rec_buf[0] = protocol; + rec_buf[1] = 0x03; /* version = 3.1 or higher */ + rec_buf[2] = ssl->version & 0x0f; + rec_buf[3] = ssl->bm_index >> 8; + rec_buf[4] = ssl->bm_index & 0xff; + + DISPLAY_BYTES(ssl, "sending %d bytes", ssl->bm_all_data, + pkt_size, pkt_size); + + while (sent < pkt_size) + { + ret = SOCKET_WRITE(ssl->client_fd, + &ssl->bm_all_data[sent], pkt_size-sent); + if (ret >= 0) + sent += ret; + else + { +#ifdef WIN32 + if (GetLastError() == WSAETIMEDOUT) +#else + if (errno == EAGAIN) +#endif + return SSL_TIMEDOUT; + +#ifdef WIN32 + if (GetLastError() != WSAEWOULDBLOCK) +#else + if (errno != EWOULDBLOCK) +#endif + return SSL_ERROR_CONN_LOST; + } + + /* keep going until the write buffer has some space */ + if (sent != pkt_size) + { + fd_set wfds; + FD_ZERO(&wfds); + FD_SET(ssl->client_fd, &wfds); + + /* block and wait for it */ + if (select(ssl->client_fd + 1, NULL, &wfds, NULL, NULL) < 0) + return SSL_ERROR_CONN_LOST; + } + } + + SET_SSL_FLAG(SSL_NEED_RECORD); /* reset read for next time */ + ssl->bm_index = 0; + + if (protocol != PT_APP_PROTOCOL_DATA) + { + /* always return SSL_OK during handshake */ + ret = SSL_OK; + } + + return ret; +} + +/** + * Send an encrypted packet with padding bytes if necessary. + */ +int send_packet(SSL *ssl, uint8_t protocol, const uint8_t *in, int length) +{ + int ret, msg_length = 0; + + /* if our state is bad, don't bother */ + if (ssl->hs_status == SSL_ERROR_DEAD) + return SSL_ERROR_CONN_LOST; + + if (in) /* has the buffer already been initialised? */ + { + memcpy(ssl->bm_data, in, length); + } + + msg_length += length; + + if (IS_SET_SSL_FLAG(SSL_TX_ENCRYPTED)) + { + int mode = IS_SET_SSL_FLAG(SSL_IS_CLIENT) ? + SSL_CLIENT_WRITE : SSL_SERVER_WRITE; + uint8_t hmac_header[SSL_RECORD_SIZE] = + { + protocol, + 0x03, /* version = 3.1 or higher */ + ssl->version & 0x0f, + msg_length >> 8, + msg_length & 0xff + }; + + if (protocol == PT_HANDSHAKE_PROTOCOL) + { + DISPLAY_STATE(ssl, 1, ssl->bm_data[0], 0); + + if (ssl->bm_data[0] != HS_HELLO_REQUEST) + { + add_packet(ssl, ssl->bm_data, msg_length); + } + } + + /* add the packet digest */ + add_hmac_digest(ssl, mode, hmac_header, ssl->bm_data, msg_length, + &ssl->bm_data[msg_length]); + msg_length += ssl->cipher_info->digest_size; + + /* add padding? */ + if (ssl->cipher_info->padding_size) + { + int last_blk_size = msg_length%ssl->cipher_info->padding_size; + int pad_bytes = ssl->cipher_info->padding_size - last_blk_size; + + /* ensure we always have at least 1 padding byte */ + if (pad_bytes == 0) + pad_bytes += ssl->cipher_info->padding_size; + + memset(&ssl->bm_data[msg_length], pad_bytes-1, pad_bytes); + msg_length += pad_bytes; + } + + DISPLAY_BYTES(ssl, "unencrypted write", ssl->bm_data, msg_length); + increment_write_sequence(ssl); + + /* add the explicit IV for TLS1.1 */ + if (ssl->version >= SSL_PROTOCOL_VERSION1_1 && + ssl->cipher_info->iv_size) + { + uint8_t iv_size = ssl->cipher_info->iv_size; + uint8_t *t_buf = (uint8_t *)malloc(msg_length + iv_size); + memcpy(t_buf + iv_size, ssl->bm_data, msg_length); + get_random(iv_size, t_buf); + msg_length += iv_size; + memcpy(ssl->bm_data, t_buf, msg_length); + free(t_buf); + } + + /* now encrypt the packet */ + ssl->cipher_info->encrypt(ssl->encrypt_ctx, ssl->bm_data, + ssl->bm_data, msg_length); + } + else if (protocol == PT_HANDSHAKE_PROTOCOL) + { + DISPLAY_STATE(ssl, 1, ssl->bm_data[0], 0); + + if (ssl->bm_data[0] != HS_HELLO_REQUEST) + { + add_packet(ssl, ssl->bm_data, length); + } + } + + ssl->bm_index = msg_length; + if ((ret = send_raw_packet(ssl, protocol)) <= 0) + return ret; + + return length; /* just return what we wanted to send */ +} + +/** + * Work out the cipher keys we are going to use for this session based on the + * master secret. + */ +static int set_key_block(SSL *ssl, int is_write) +{ + const cipher_info_t *ciph_info = get_cipher_info(ssl->cipher); + uint8_t *q; + uint8_t client_key[32], server_key[32]; /* big enough for AES256 */ + uint8_t client_iv[16], server_iv[16]; /* big enough for AES128/256 */ + int is_client = IS_SET_SSL_FLAG(SSL_IS_CLIENT); + + if (ciph_info == NULL) + return -1; + + /* only do once in a handshake */ + if (ssl->dc->key_block == NULL) + { + ssl->dc->key_block = (uint8_t *)malloc(ciph_info->key_block_size); + +#if 0 + print_blob("client", ssl->dc->client_random, 32); + print_blob("server", ssl->dc->server_random, 32); + print_blob("master", ssl->dc->master_secret, SSL_SECRET_SIZE); +#endif + generate_key_block(ssl->dc->client_random, ssl->dc->server_random, + ssl->dc->master_secret, ssl->dc->key_block, + ciph_info->key_block_size); +#if 0 + print_blob("keyblock", ssl->dc->key_block, ciph_info->key_block_size); +#endif + } + + q = ssl->dc->key_block; + + if ((is_client && is_write) || (!is_client && !is_write)) + { + memcpy(ssl->client_mac, q, ciph_info->digest_size); + } + + q += ciph_info->digest_size; + + if ((!is_client && is_write) || (is_client && !is_write)) + { + memcpy(ssl->server_mac, q, ciph_info->digest_size); + } + + q += ciph_info->digest_size; + memcpy(client_key, q, ciph_info->key_size); + q += ciph_info->key_size; + memcpy(server_key, q, ciph_info->key_size); + q += ciph_info->key_size; + +#ifndef CONFIG_SSL_SKELETON_MODE + if (ciph_info->iv_size) /* RC4 has no IV, AES does */ + { + memcpy(client_iv, q, ciph_info->iv_size); + q += ciph_info->iv_size; + memcpy(server_iv, q, ciph_info->iv_size); + q += ciph_info->iv_size; + } +#endif + + free(is_write ? ssl->encrypt_ctx : ssl->decrypt_ctx); + + /* now initialise the ciphers */ + if (is_client) + { + finished_digest(ssl, server_finished, ssl->dc->final_finish_mac); + + if (is_write) + ssl->encrypt_ctx = crypt_new(ssl, client_key, client_iv, 0); + else + ssl->decrypt_ctx = crypt_new(ssl, server_key, server_iv, 1); + } + else + { + finished_digest(ssl, client_finished, ssl->dc->final_finish_mac); + + if (is_write) + ssl->encrypt_ctx = crypt_new(ssl, server_key, server_iv, 0); + else + ssl->decrypt_ctx = crypt_new(ssl, client_key, client_iv, 1); + } + + ssl->cipher_info = ciph_info; + return 0; +} + +/** + * Read the SSL connection - client use. + */ +int basic_read(SSL *ssl, uint8_t **in_data) +{ + int ret = SSL_OK; + int read_len, is_client = IS_SET_SSL_FLAG(SSL_IS_CLIENT); + uint8_t *buf = ssl->bm_rdata; + + read_len = SOCKET_READ(ssl->client_fd, &buf[ssl->bm_rread_index], + ssl->rneed_bytes-ssl->rgot_bytes); + + /* See if this is a recoverable error */ + if (read_len < 0) + { +#ifdef WIN32 + if (GetLastError() == WSAETIMEDOUT) +#else + if (errno == EAGAIN) +#endif + return SSL_TIMEDOUT; + +#ifdef WIN32 + if (GetLastError() == WSAEWOULDBLOCK) +#else + if (errno == EWOULDBLOCK) +#endif + return 0; + } + + /* connection has gone, so die */ + if (read_len <= 0) + { + ret = SSL_ERROR_CONN_LOST; + ssl->hs_status = SSL_ERROR_DEAD; /* make sure it stays dead */ + goto error; + } + + DISPLAY_BYTES(ssl, "received %d bytes", + &ssl->bm_rdata[ssl->bm_rread_index], read_len, read_len); + + ssl->rgot_bytes += read_len; + ssl->bm_rread_index += read_len; + + /* haven't quite got what we want, so try again later */ + if (ssl->rgot_bytes < ssl->rneed_bytes) + return SSL_OK; + + /* Got what we want */ + read_len = ssl->rgot_bytes; + ssl->rgot_bytes = 0; + ssl->bm_rread_index = 0; /* reset to go again */ + + if (ssl->need_record) + { + /* check for sslv2 "client hello" */ + if (buf[0] & 0x80 && buf[2] == 1) + { + printf("Error: no SSLv23 handshaking allowed\n"); TTY_FLUSH(); + ret = SSL_ERROR_NOT_SUPPORTED; + goto error; /* not an error - just get out of here */ + } + + ssl->rneed_bytes = (buf[3] << 8) + buf[4]; + + /* do we violate the spec with the message size? */ + /* (Typically indicates protocol corruption - i.e. the first 3 bytes are */ + /* not the expected ones either) */ + if (ssl->rneed_bytes > RT_MAX_PLAIN_LENGTH+RT_EXTRA-BM_RECORD_OFFSET) + { + ret = SSL_ERROR_INVALID_PROT_MSG; + goto error; + } + + ssl->need_record = 0; + memcpy(ssl->hmac_rheader, buf, 3); /* store for hmac */ + ssl->rrecord_type = buf[0]; + goto error; /* no error, we're done */ + } + + /* for next time - just do it now in case of an error */ + ssl->need_record = 1; + ssl->rneed_bytes = SSL_RECORD_SIZE; + + /* decrypt if we need to */ + if (IS_SET_SSL_FLAG(SSL_RX_ENCRYPTED)) + { + ssl->cipher_info->decrypt(ssl->decrypt_ctx, buf, buf, read_len); + + if (ssl->version >= SSL_PROTOCOL_VERSION1_1 && + ssl->cipher_info->iv_size) + { + buf += ssl->cipher_info->iv_size; + read_len -= ssl->cipher_info->iv_size; + } + + read_len = verify_digest(ssl, is_client ? SSL_CLIENT_READ : SSL_SERVER_READ, + ssl->hmac_rheader, buf, read_len); + + /* does the hmac work? */ + if (read_len < 0) + { + ret = read_len; + goto error; + } + + DISPLAY_BYTES(ssl, "decrypted", buf, read_len); + increment_read_sequence(ssl); + } + + /* The main part of the SSL packet */ + /* (Since we're now running client data and have no clean way */ + /* to break into the asynchronous send stream, disalow any */ + /* protocol change or negotiation.) */ + switch (ssl->rrecord_type) + { + case PT_HANDSHAKE_PROTOCOL: + { + ret = SSL_ERROR_NO_CLIENT_RENOG; + goto error; + } + break; + + case PT_CHANGE_CIPHER_SPEC: + { + ret = SSL_ERROR_INVALID_HANDSHAKE; + goto error; + } + break; + + case PT_APP_PROTOCOL_DATA: + if (in_data) + { + *in_data = buf; /* point to the work buffer */ + (*in_data)[read_len] = 0; /* null terminate just in case */ + } + + ret = read_len; + break; + + case PT_ALERT_PROTOCOL: + ret = SSL_ERROR_INVALID_PROT_MSG; + break; + + default: + ret = SSL_ERROR_INVALID_PROT_MSG; + break; + } + +error: + if (ret < SSL_OK && in_data)/* if all wrong, then clear this buffer ptr */ + *in_data = NULL; + + return ret; +} + +/** + * Read the SSL connection - internal. Used during setup. + */ +int basic_readi(SSL *ssl, uint8_t **in_data) +{ + int ret = SSL_OK; + int read_len, is_client = IS_SET_SSL_FLAG(SSL_IS_CLIENT); + uint8_t *buf = ssl->bm_data; + + read_len = SOCKET_READ(ssl->client_fd, &buf[ssl->bm_read_index], + ssl->need_bytes-ssl->got_bytes); + /* See if this is a recoverable error */ + if (read_len < 0) + { +#ifdef WIN32 + if (GetLastError() == WSAETIMEDOUT) +#else + if (errno == EAGAIN) +#endif + return SSL_TIMEDOUT; + +#ifdef WIN32 + if (GetLastError() == WSAEWOULDBLOCK) +#else + if (errno == EWOULDBLOCK) +#endif + return 0; + } + + /* connection has gone, so die */ + if (read_len <= 0) + { + ret = SSL_ERROR_CONN_LOST; + ssl->hs_status = SSL_ERROR_DEAD; /* make sure it stays dead */ + goto error; + } + + DISPLAY_BYTES(ssl, "received %d bytes", + &ssl->bm_data[ssl->bm_read_index], read_len, read_len); + + ssl->got_bytes += read_len; + ssl->bm_read_index += read_len; + + /* haven't quite got what we want, so try again later */ + if (ssl->got_bytes < ssl->need_bytes) + return SSL_OK; + + /* Got what we want */ + read_len = ssl->got_bytes; + ssl->got_bytes = 0; + ssl->bm_read_index = 0; /* reset to go again */ + + if (IS_SET_SSL_FLAG(SSL_NEED_RECORD)) + { + /* check for sslv2 "client hello" */ + if (buf[0] & 0x80 && buf[2] == 1) + { +#ifdef CONFIG_SSL_ENABLE_V23_HANDSHAKE + uint8_t version = (buf[3] << 4) + buf[4]; + DISPLAY_BYTES(ssl, "ssl2 record", buf, 5); + + /* should be v3.1 (TLSv1) or better */ + ssl->version = ssl->client_version = version; + + if (version > SSL_PROTOCOL_VERSION_MAX) + { + /* use client's version */ + ssl->version = SSL_PROTOCOL_VERSION_MAX; + } + else if (version < SSL_PROTOCOL_MIN_VERSION) + { + ret = SSL_ERROR_INVALID_VERSION; + ssl_display_error(ret); + return ret; + } + + add_packet(ssl, &buf[2], 3); + ret = process_sslv23_client_hello(ssl); +#else + printf("Error: no SSLv23 handshaking allowed\n"); TTY_FLUSH(); + ret = SSL_ERROR_NOT_SUPPORTED; +#endif + goto error; /* not an error - just get out of here */ + } + + ssl->need_bytes = (buf[3] << 8) + buf[4]; + + /* do we violate the spec with the message size? */ + /* (Typically indicates protocol corruption - i.e. the first 3 bytes are */ + /* not the expected ones either) */ + if (ssl->need_bytes > RT_MAX_PLAIN_LENGTH+RT_EXTRA-BM_RECORD_OFFSET) + { + ret = SSL_ERROR_INVALID_PROT_MSG; + goto error; + } + + CLR_SSL_FLAG(SSL_NEED_RECORD); + memcpy(ssl->hmac_header, buf, 3); /* store for hmac */ + ssl->record_type = buf[0]; + goto error; /* no error, we're done */ + } + + /* for next time - just do it now in case of an error */ + SET_SSL_FLAG(SSL_NEED_RECORD); + ssl->need_bytes = SSL_RECORD_SIZE; + + /* decrypt if we need to */ + if (IS_SET_SSL_FLAG(SSL_RX_ENCRYPTED)) + { + ssl->cipher_info->decrypt(ssl->decrypt_ctx, buf, buf, read_len); + + if (ssl->version >= SSL_PROTOCOL_VERSION1_1 && + ssl->cipher_info->iv_size) + { + buf += ssl->cipher_info->iv_size; + read_len -= ssl->cipher_info->iv_size; + } + + read_len = verify_digest(ssl, is_client ? SSL_CLIENT_READ : SSL_SERVER_READ, + ssl->hmac_header, buf, read_len); + + /* does the hmac work? */ + if (read_len < 0) + { + ret = read_len; + goto error; + } + + DISPLAY_BYTES(ssl, "decrypted", buf, read_len); + increment_read_sequence(ssl); + } + + /* The main part of the SSL packet */ + switch (ssl->record_type) + { + case PT_HANDSHAKE_PROTOCOL: + if (ssl->dc != NULL) + { + ssl->dc->bm_proc_index = 0; + ret = do_handshake(ssl, buf, read_len); + } + else /* no client renegotiation allowed */ + { + ret = SSL_ERROR_NO_CLIENT_RENOG; + goto error; + } + break; + + case PT_CHANGE_CIPHER_SPEC: + if (ssl->next_state != HS_FINISHED) + { + ret = SSL_ERROR_INVALID_HANDSHAKE; + goto error; + } + + /* all encrypted from now on */ + SET_SSL_FLAG(SSL_RX_ENCRYPTED); + if (set_key_block(ssl, 0) < 0) + { + ret = SSL_ERROR_INVALID_HANDSHAKE; + goto error; + } + + memset(ssl->read_sequence, 0, 8); + break; + + case PT_APP_PROTOCOL_DATA: + if (in_data) + { + *in_data = buf; /* point to the work buffer */ + (*in_data)[read_len] = 0; /* null terminate just in case */ + } + + ret = read_len; + break; + + case PT_ALERT_PROTOCOL: + /* return the alert # with alert bit set */ + if(buf[0] == SSL_ALERT_TYPE_WARNING && + buf[1] == SSL_ALERT_CLOSE_NOTIFY) + { + ret = SSL_CLOSE_NOTIFY; + send_alert(ssl, SSL_ALERT_CLOSE_NOTIFY); + SET_SSL_FLAG(SSL_SENT_CLOSE_NOTIFY); + } + else + { + ret = -buf[1]; + DISPLAY_ALERT(ssl, buf[1]); + } + + break; + + default: + ret = SSL_ERROR_INVALID_PROT_MSG; + break; + } + +error: + if (ret < SSL_OK && in_data)/* if all wrong, then clear this buffer ptr */ + *in_data = NULL; + + return ret; +} + + +/** + * Do some basic checking of data and then perform the appropriate handshaking. + */ +static int do_handshake(SSL *ssl, uint8_t *buf, int read_len) +{ + int hs_len = (buf[2]<<8) + buf[3]; + uint8_t handshake_type = buf[0]; + int ret = SSL_OK; + int is_client = IS_SET_SSL_FLAG(SSL_IS_CLIENT); + + /* some integrity checking on the handshake */ + PARANOIA_CHECK(read_len-SSL_HS_HDR_SIZE, hs_len); + + if (handshake_type != ssl->next_state) + { + /* handle a special case on the client */ + if (!is_client || handshake_type != HS_CERT_REQ || + ssl->next_state != HS_SERVER_HELLO_DONE) + { + ret = SSL_ERROR_INVALID_HANDSHAKE; + goto error; + } + } + + hs_len += SSL_HS_HDR_SIZE; /* adjust for when adding packets */ + ssl->bm_index = hs_len; /* store the size and check later */ + DISPLAY_STATE(ssl, 0, handshake_type, 0); + + if (handshake_type != HS_CERT_VERIFY && handshake_type != HS_HELLO_REQUEST) + add_packet(ssl, buf, hs_len); + +#if defined(CONFIG_SSL_ENABLE_CLIENT) + ret = is_client ? + do_clnt_handshake(ssl, handshake_type, buf, hs_len) : + do_svr_handshake(ssl, handshake_type, buf, hs_len); +#else + ret = do_svr_handshake(ssl, handshake_type, buf, hs_len); +#endif + + /* just use recursion to get the rest */ + if (hs_len < read_len && ret == SSL_OK) + ret = do_handshake(ssl, &buf[hs_len], read_len-hs_len); + +error: + return ret; +} + +/** + * Sends the change cipher spec message. We have just read a finished message + * from the client. + */ +int send_change_cipher_spec(SSL *ssl) +{ + int ret = send_packet(ssl, PT_CHANGE_CIPHER_SPEC, + g_chg_cipher_spec_pkt, sizeof(g_chg_cipher_spec_pkt)); + SET_SSL_FLAG(SSL_TX_ENCRYPTED); + + if (ret >= 0 && set_key_block(ssl, 1) < 0) + ret = SSL_ERROR_INVALID_HANDSHAKE; + + memset(ssl->write_sequence, 0, 8); + return ret; +} + +/** + * Send a "finished" message + */ +int send_finished(SSL *ssl) +{ + uint8_t buf[SSL_FINISHED_HASH_SIZE+4] = { + HS_FINISHED, 0, 0, SSL_FINISHED_HASH_SIZE }; + + /* now add the finished digest mac (12 bytes) */ + finished_digest(ssl, + IS_SET_SSL_FLAG(SSL_IS_CLIENT) ? + client_finished : server_finished, &buf[4]); + +#ifndef CONFIG_SSL_SKELETON_MODE + /* store in the session cache */ + if (!IS_SET_SSL_FLAG(SSL_SESSION_RESUME) && ssl->ssl_ctx->num_sessions) + { + memcpy(ssl->session->master_secret, + ssl->dc->master_secret, SSL_SECRET_SIZE); + } +#endif + + return send_packet(ssl, PT_HANDSHAKE_PROTOCOL, + buf, SSL_FINISHED_HASH_SIZE+4); +} + +/** + * Send an alert message. + * Return 1 if the alert was an "error". + */ +int send_alert(SSL *ssl, int error_code) +{ + int alert_num = 0; + int is_warning = 0; + uint8_t buf[2]; + + /* Don't bother we're already dead */ + if (ssl->hs_status == SSL_ERROR_DEAD) + { + return SSL_ERROR_CONN_LOST; + } + +#ifdef CONFIG_SSL_FULL_MODE + if (IS_SET_SSL_FLAG(SSL_DISPLAY_STATES)) + ssl_display_error(error_code); +#endif + + switch (error_code) + { + case SSL_ALERT_CLOSE_NOTIFY: + is_warning = 1; + alert_num = SSL_ALERT_CLOSE_NOTIFY; + break; + + case SSL_ERROR_CONN_LOST: /* don't send alert just yet */ + is_warning = 1; + break; + + case SSL_ERROR_INVALID_HANDSHAKE: + case SSL_ERROR_INVALID_PROT_MSG: + alert_num = SSL_ALERT_HANDSHAKE_FAILURE; + break; + + case SSL_ERROR_INVALID_HMAC: + case SSL_ERROR_FINISHED_INVALID: + alert_num = SSL_ALERT_BAD_RECORD_MAC; + break; + + case SSL_ERROR_INVALID_VERSION: + alert_num = SSL_ALERT_INVALID_VERSION; + break; + + case SSL_ERROR_INVALID_SESSION: + case SSL_ERROR_NO_CIPHER: + case SSL_ERROR_INVALID_KEY: + alert_num = SSL_ALERT_ILLEGAL_PARAMETER; + break; + + case SSL_ERROR_BAD_CERTIFICATE: + alert_num = SSL_ALERT_BAD_CERTIFICATE; + break; + + case SSL_ERROR_NO_CLIENT_RENOG: + alert_num = SSL_ALERT_NO_RENEGOTIATION; + break; + + default: + /* a catch-all for any badly verified certificates */ + alert_num = (error_code <= SSL_X509_OFFSET) ? + SSL_ALERT_BAD_CERTIFICATE : SSL_ALERT_UNEXPECTED_MESSAGE; + break; + } + + buf[0] = is_warning ? 1 : 2; + buf[1] = alert_num; + send_packet(ssl, PT_ALERT_PROTOCOL, buf, sizeof(buf)); + DISPLAY_ALERT(ssl, alert_num); + return is_warning ? 0 : 1; +} + +/** + * Process a client finished message. + */ +int process_finished(SSL *ssl, uint8_t *buf, int hs_len) +{ + int ret = SSL_OK; + int is_client = IS_SET_SSL_FLAG(SSL_IS_CLIENT); + int resume = IS_SET_SSL_FLAG(SSL_SESSION_RESUME); + + PARANOIA_CHECK(ssl->bm_index, SSL_FINISHED_HASH_SIZE+4); + + /* check that we all work before we continue */ + if (memcmp(ssl->dc->final_finish_mac, &buf[4], SSL_FINISHED_HASH_SIZE)) + return SSL_ERROR_FINISHED_INVALID; + + if ((!is_client && !resume) || (is_client && resume)) + { + if ((ret = send_change_cipher_spec(ssl)) == SSL_OK) + ret = send_finished(ssl); + } + + /* if we ever renegotiate */ + ssl->next_state = is_client ? HS_HELLO_REQUEST : HS_CLIENT_HELLO; + ssl->hs_status = ret; /* set the final handshake status */ + +error: + return ret; +} + +/** + * Send a certificate. + */ +int send_certificate(SSL *ssl) +{ + int i = 0; + uint8_t *buf = ssl->bm_data; + int offset = 7; + int chain_length; + + buf[0] = HS_CERTIFICATE; + buf[1] = 0; + buf[4] = 0; + + while (i < ssl->ssl_ctx->chain_length) + { + SSL_CERT *cert = &ssl->ssl_ctx->certs[i]; + buf[offset++] = 0; + buf[offset++] = cert->size >> 8; /* cert 1 length */ + buf[offset++] = cert->size & 0xff; + memcpy(&buf[offset], cert->buf, cert->size); + offset += cert->size; + i++; + } + + chain_length = offset - 7; + buf[5] = chain_length >> 8; /* cert chain length */ + buf[6] = chain_length & 0xff; + chain_length += 3; + buf[2] = chain_length >> 8; /* handshake length */ + buf[3] = chain_length & 0xff; + ssl->bm_index = offset; + return send_packet(ssl, PT_HANDSHAKE_PROTOCOL, NULL, offset); +} + +/** + * Create a blob of memory that we'll get rid of once the handshake is + * complete. + */ +void disposable_new(SSL *ssl) +{ + if (ssl->dc == NULL) + { + ssl->dc = (DISPOSABLE_CTX *)calloc(1, sizeof(DISPOSABLE_CTX)); + MD5_Init(&ssl->dc->md5_ctx); + SHA1_Init(&ssl->dc->sha1_ctx); + } +} + +/** + * Remove the temporary blob of memory. + */ +void disposable_free(SSL *ssl) +{ + if (ssl->dc) + { + free(ssl->dc->key_block); + memset(ssl->dc, 0, sizeof(DISPOSABLE_CTX)); + free(ssl->dc); + ssl->dc = NULL; + } + +} + +#ifndef CONFIG_SSL_SKELETON_MODE /* no session resumption in this mode */ +/** + * Find if an existing session has the same session id. If so, use the + * master secret from this session for session resumption. + */ +SSL_SESSION *ssl_session_update(int max_sessions, SSL_SESSION *ssl_sessions[], + SSL *ssl, const uint8_t *session_id) +{ + time_t tm = time(NULL); + time_t oldest_sess_time = tm; + SSL_SESSION *oldest_sess = NULL; + int i; + + /* no sessions? Then bail */ + if (max_sessions == 0) + return NULL; + + SSL_CTX_LOCK(ssl->ssl_ctx->mutex); + if (session_id) + { + for (i = 0; i < max_sessions; i++) + { + if (ssl_sessions[i]) + { + /* kill off any expired sessions (including those in + the future) */ + if ((tm > ssl_sessions[i]->conn_time + SSL_EXPIRY_TIME) || + (tm < ssl_sessions[i]->conn_time)) + { + session_free(ssl_sessions, i); + continue; + } + + /* if the session id matches, it must still be less than + the expiry time */ + if (memcmp(ssl_sessions[i]->session_id, session_id, + SSL_SESSION_ID_SIZE) == 0) + { + ssl->session_index = i; + memcpy(ssl->dc->master_secret, + ssl_sessions[i]->master_secret, SSL_SECRET_SIZE); + SET_SSL_FLAG(SSL_SESSION_RESUME); + SSL_CTX_UNLOCK(ssl->ssl_ctx->mutex); + return ssl_sessions[i]; /* a session was found */ + } + } + } + } + + /* If we've got here, no matching session was found - so create one */ + for (i = 0; i < max_sessions; i++) + { + if (ssl_sessions[i] == NULL) + { + /* perfect, this will do */ + ssl_sessions[i] = (SSL_SESSION *)calloc(1, sizeof(SSL_SESSION)); + ssl_sessions[i]->conn_time = tm; + ssl->session_index = i; + SSL_CTX_UNLOCK(ssl->ssl_ctx->mutex); + return ssl_sessions[i]; /* return the session object */ + } + else if (ssl_sessions[i]->conn_time <= oldest_sess_time) + { + /* find the oldest session */ + oldest_sess_time = ssl_sessions[i]->conn_time; + oldest_sess = ssl_sessions[i]; + ssl->session_index = i; + } + } + + /* ok, we've used up all of our sessions. So blow the oldest session away */ + oldest_sess->conn_time = tm; + memset(oldest_sess->session_id, 0, sizeof(SSL_SESSION_ID_SIZE)); + memset(oldest_sess->master_secret, 0, sizeof(SSL_SECRET_SIZE)); + SSL_CTX_UNLOCK(ssl->ssl_ctx->mutex); + return oldest_sess; +} + +/** + * Free an existing session. + */ +static void session_free(SSL_SESSION *ssl_sessions[], int sess_index) +{ + if (ssl_sessions[sess_index]) + { + free(ssl_sessions[sess_index]); + ssl_sessions[sess_index] = NULL; + } +} + +/** + * This ssl object doesn't want this session anymore. + */ +void kill_ssl_session(SSL_SESSION **ssl_sessions, SSL *ssl) +{ + SSL_CTX_LOCK(ssl->ssl_ctx->mutex); + + if (ssl->ssl_ctx->num_sessions) + { + session_free(ssl_sessions, ssl->session_index); + ssl->session = NULL; + } + + SSL_CTX_UNLOCK(ssl->ssl_ctx->mutex); +} +#endif /* CONFIG_SSL_SKELETON_MODE */ + +/* + * Get the session id for a handshake. This will be a 32 byte sequence. + */ +EXP_FUNC const uint8_t * STDCALL ssl_get_session_id(const SSL *ssl) +{ + return ssl->session_id; +} + +/* + * Get the session id size for a handshake. + */ +EXP_FUNC uint8_t STDCALL ssl_get_session_id_size(const SSL *ssl) +{ + return ssl->sess_id_size; +} + +/* + * Return the cipher id (in the SSL form). + */ +EXP_FUNC uint8_t STDCALL ssl_get_cipher_id(const SSL *ssl) +{ + return ssl->cipher; +} + +/* + * Return the status of the handshake. + */ +EXP_FUNC int STDCALL ssl_handshake_status(const SSL *ssl) +{ + return ssl->hs_status; +} + +/* + * Retrieve various parameters about the SSL engine. + */ +EXP_FUNC int STDCALL ssl_get_config(int offset) +{ + switch (offset) + { + /* return the appropriate build mode */ + case SSL_BUILD_MODE: +#if defined(CONFIG_SSL_FULL_MODE) + return SSL_BUILD_FULL_MODE; +#elif defined(CONFIG_SSL_ENABLE_CLIENT) + return SSL_BUILD_ENABLE_CLIENT; +#elif defined(CONFIG_ENABLE_VERIFICATION) + return SSL_BUILD_ENABLE_VERIFICATION; +#elif defined(CONFIG_SSL_SERVER_ONLY ) + return SSL_BUILD_SERVER_ONLY; +#else + return SSL_BUILD_SKELETON_MODE; +#endif + + case SSL_MAX_CERT_CFG_OFFSET: + return CONFIG_SSL_MAX_CERTS; + +#ifdef CONFIG_SSL_CERT_VERIFICATION + case SSL_MAX_CA_CERT_CFG_OFFSET: + return CONFIG_X509_MAX_CA_CERTS; +#endif +#ifdef CONFIG_SSL_HAS_PEM + case SSL_HAS_PEM: + return 1; +#endif + default: + return 0; + } +} + +#ifdef CONFIG_SSL_CERT_VERIFICATION +/** + * Authenticate a received certificate. + */ +EXP_FUNC int STDCALL ssl_verify_cert(const SSL *ssl) +{ + int ret; + SSL_CTX_LOCK(ssl->ssl_ctx->mutex); + ret = x509_verify(ssl->ssl_ctx->ca_cert_ctx, ssl->x509_ctx); + SSL_CTX_UNLOCK(ssl->ssl_ctx->mutex); + + if (ret) /* modify into an SSL error type */ + { + ret = SSL_X509_ERROR(ret); + } + + return ret; +} + +/** + * Process a certificate message. + */ +int process_certificate(SSL *ssl, X509_CTX **x509_ctx) +{ + int ret = SSL_OK; + uint8_t *buf = &ssl->bm_data[ssl->dc->bm_proc_index]; + int pkt_size = ssl->bm_index; + int cert_size, offset = 5; + int total_cert_size = (buf[offset]<<8) + buf[offset+1]; + int is_client = IS_SET_SSL_FLAG(SSL_IS_CLIENT); + X509_CTX **chain = x509_ctx; + offset += 2; + + PARANOIA_CHECK(total_cert_size, offset); + + while (offset < total_cert_size) + { + offset++; /* skip empty char */ + cert_size = (buf[offset]<<8) + buf[offset+1]; + offset += 2; + + if (x509_new(&buf[offset], NULL, chain)) + { + ret = SSL_ERROR_BAD_CERTIFICATE; + goto error; + } + + chain = &((*chain)->next); + offset += cert_size; + } + + PARANOIA_CHECK(pkt_size, offset); + + /* if we are client we can do the verify now or later */ + if (is_client && !IS_SET_SSL_FLAG(SSL_SERVER_VERIFY_LATER)) + { + ret = ssl_verify_cert(ssl); + } + + ssl->next_state = is_client ? HS_SERVER_HELLO_DONE : HS_CLIENT_KEY_XCHG; + ssl->dc->bm_proc_index += offset; +error: + return ret; +} + +#endif /* CONFIG_SSL_CERT_VERIFICATION */ + +/** + * Debugging routine to return SSL handshaking errors. + */ +EXP_FUNC const char * STDCALL ssl_error_string(int error_code) +{ + static char buf[100]; + + if (error_code == SSL_OK) + return "SSL_OK"; + + /* X509 error? */ + if (error_code < SSL_X509_OFFSET) + { + return x509_display_error(error_code - SSL_X509_OFFSET); + } + + /* SSL alert error code */ + if (error_code > SSL_ERROR_CONN_LOST) + { + switch (error_code) + { + case SSL_OK: + return("Alert - OK"); + + case SSL_NOT_OK: + return("Alert - Not OK"); + + case SSL_ERROR_DEAD: + return("Alert - Error Dead"); + + case SSL_CLOSE_NOTIFY: + return("Alert - Close Notify"); + + case SSL_TIMEDOUT: + return("Alert - Timed Out"); + } + sprintf(buf, "SSL Alert %d", -error_code); + return buf; + } + + /* Something bad */ + switch (error_code) + { + case SSL_ERROR_DEAD: + return("connection dead"); + + case SSL_ERROR_INVALID_HANDSHAKE: + return("invalid handshake"); + + case SSL_ERROR_INVALID_PROT_MSG: + return("invalid protocol message"); + + case SSL_ERROR_INVALID_HMAC: + return("invalid mac"); + + case SSL_ERROR_INVALID_VERSION: + return("invalid version"); + + case SSL_ERROR_INVALID_SESSION: + return("invalid session"); + + case SSL_ERROR_NO_CIPHER: + return("no cipher"); + + case SSL_ERROR_CONN_LOST: + return("connection lost"); + + case SSL_ERROR_BAD_CERTIFICATE: + return("bad certificate"); + + case SSL_ERROR_INVALID_KEY: + return("invalid key"); + + case SSL_ERROR_FINISHED_INVALID: + return("finished invalid"); + + case SSL_ERROR_NO_CERT_DEFINED: + return("no certificate defined"); + + case SSL_ERROR_NO_CLIENT_RENOG: + return("client renegotiation not supported"); + + case SSL_ERROR_NOT_SUPPORTED: + return("Option not supported"); + } + sprintf(buf,"undefined - %d", error_code); + return buf; +} + +/** + * Debugging routine to display SSL handshaking stuff. + */ +#ifdef CONFIG_SSL_FULL_MODE +/** + * Debugging routine to display SSL states. + */ +void DISPLAY_STATE(SSL *ssl, int is_send, uint8_t state, int not_ok) +{ + const char *str; + + if (!IS_SET_SSL_FLAG(SSL_DISPLAY_STATES)) + return; + + printf(not_ok ? "Error - invalid State:\t" : "State:\t"); + printf(is_send ? "sending " : "receiving "); + + switch (state) + { + case HS_HELLO_REQUEST: + str = "Hello Request (0)"; + break; + + case HS_CLIENT_HELLO: + str = "Client Hello (1)"; + break; + + case HS_SERVER_HELLO: + str = "Server Hello (2)"; + break; + + case HS_CERTIFICATE: + str = "Certificate (11)"; + break; + + case HS_SERVER_KEY_XCHG: + str = "Certificate Request (12)"; + break; + + case HS_CERT_REQ: + str = "Certificate Request (13)"; + break; + + case HS_SERVER_HELLO_DONE: + str = "Server Hello Done (14)"; + break; + + case HS_CERT_VERIFY: + str = "Certificate Verify (15)"; + break; + + case HS_CLIENT_KEY_XCHG: + str = "Client Key Exchange (16)"; + break; + + case HS_FINISHED: + str = "Finished (16)"; + break; + + default: + str = "Error (Unknown)"; + + break; + } + + printf("%s\n", str); + TTY_FLUSH(); +} + +/** + * Debugging routine to display RSA objects + */ +void DISPLAY_RSA(SSL *ssl, const RSA_CTX *rsa_ctx) +{ + if (!IS_SET_SSL_FLAG(SSL_DISPLAY_RSA)) + return; + + RSA_print(rsa_ctx); + TTY_FLUSH(); +} + +/** + * Debugging routine to display SSL handshaking bytes. + */ +void DISPLAY_BYTES(SSL *ssl, const char *format, + const uint8_t *data, int size, ...) +{ + va_list(ap); + + if (!IS_SET_SSL_FLAG(SSL_DISPLAY_BYTES)) + return; + + va_start(ap, size); + print_blob(format, data, size, va_arg(ap, char *)); + va_end(ap); + TTY_FLUSH(); +} + +/** + * Debugging routine to display SSL handshaking errors. + */ +EXP_FUNC void STDCALL ssl_display_error(int error_code) +{ + if (error_code == SSL_OK) + return; + + printf("Error: %s\n",ssl_error_string(error_code)); + TTY_FLUSH(); +} + +/** + * Debugging routine to display alerts. + */ +void DISPLAY_ALERT(SSL *ssl, int alert) +{ + if (!IS_SET_SSL_FLAG(SSL_DISPLAY_STATES)) + return; + + printf("Alert: "); + + switch (alert) + { + case SSL_ALERT_CLOSE_NOTIFY: + printf("close notify"); + break; + + case SSL_ALERT_INVALID_VERSION: + printf("invalid version"); + break; + + case SSL_ALERT_BAD_CERTIFICATE: + printf("bad certificate"); + break; + + case SSL_ALERT_UNEXPECTED_MESSAGE: + printf("unexpected message"); + break; + + case SSL_ALERT_BAD_RECORD_MAC: + printf("bad record mac"); + break; + + case SSL_ALERT_HANDSHAKE_FAILURE: + printf("handshake failure"); + break; + + case SSL_ALERT_ILLEGAL_PARAMETER: + printf("illegal parameter"); + break; + + case SSL_ALERT_DECODE_ERROR: + printf("decode error"); + break; + + case SSL_ALERT_DECRYPT_ERROR: + printf("decrypt error"); + break; + + case SSL_ALERT_NO_RENEGOTIATION: + printf("no renegotiation"); + break; + + default: + printf("alert - (unknown %d)", alert); + break; + } + + printf("\n"); + TTY_FLUSH(); +} + +#endif /* CONFIG_SSL_FULL_MODE */ + +/** + * Return the version of this library. + */ +EXP_FUNC const char * STDCALL ssl_version() +{ + static const char * axtls_version = AXTLS_VERSION; + return axtls_version; +} + +/** + * Enable the various language bindings to work regardless of the + * configuration - they just return an error statement and a bad return code. + */ +#if !defined(CONFIG_SSL_FULL_MODE) +EXP_FUNC void STDCALL ssl_display_error(int error_code) {} +#endif + +#ifdef CONFIG_BINDINGS +#if !defined(CONFIG_SSL_ENABLE_CLIENT) +EXP_FUNC SSL * STDCALL ssl_client_new(SSL_CTX *ssl_ctx, int client_fd, const + uint8_t *session_id, uint8_t sess_id_size) +{ + puts(unsupported_str); + return NULL; +} +#endif + +#if !defined(CONFIG_SSL_CERT_VERIFICATION) +EXP_FUNC int STDCALL ssl_verify_cert(const SSL *ssl) +{ + puts(unsupported_str); + return -1; +} + + +EXP_FUNC const char * STDCALL ssl_get_cert_dn(const SSL *ssl, int component) +{ + puts(unsupported_str); + return NULL; +} + +EXP_FUNC const char * STDCALL ssl_get_cert_subject_alt_dnsname(const SSL *ssl, int index) +{ + puts(unsupported_str); + return NULL; +} + +#endif /* CONFIG_SSL_CERT_VERIFICATION */ + +#endif /* CONFIG_BINDINGS */ + diff --git a/ccast/axTLS/tls1.h b/ccast/axTLS/tls1.h new file mode 100644 index 0000000..0086302 --- /dev/null +++ b/ccast/axTLS/tls1.h @@ -0,0 +1,309 @@ +/* + * Copyright (c) 2007, Cameron Rich + * + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * * Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * * Neither the name of the axTLS project nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, + * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF + * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING + * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +/** + * @file tls1.h + * + * @brief The definitions for the TLS library. + */ +#ifndef HEADER_SSL_LIB_H +#define HEADER_SSL_LIB_H + +#ifdef __cplusplus +extern "C" { +#endif + +#include "version.h" +#include "config.h" +#include "os_int.h" +#include "crypto.h" +#include "crypto_misc.h" + +#define SSL_PROTOCOL_MIN_VERSION 0x31 /* TLS v1.0 */ +#define SSL_PROTOCOL_MINOR_VERSION 0x02 /* TLS v1.1 */ +#define SSL_PROTOCOL_VERSION_MAX 0x32 /* TLS v1.1 */ +#define SSL_PROTOCOL_VERSION1_1 0x32 /* TLS v1.1 */ +#define SSL_RANDOM_SIZE 32 +#define SSL_SECRET_SIZE 48 +#define SSL_FINISHED_HASH_SIZE 12 +#define SSL_RECORD_SIZE 5 +#define SSL_SERVER_READ 0 +#define SSL_SERVER_WRITE 1 +#define SSL_CLIENT_READ 2 +#define SSL_CLIENT_WRITE 3 +#define SSL_HS_HDR_SIZE 4 + +/* the flags we use while establishing a connection */ +#define SSL_NEED_RECORD 0x0001 +#define SSL_TX_ENCRYPTED 0x0002 +#define SSL_RX_ENCRYPTED 0x0004 +#define SSL_SESSION_RESUME 0x0008 +#define SSL_IS_CLIENT 0x0010 +#define SSL_HAS_CERT_REQ 0x0020 +#define SSL_SENT_CLOSE_NOTIFY 0x0040 + +/* some macros to muck around with flag bits */ +#define SET_SSL_FLAG(A) (ssl->flag |= A) +#define CLR_SSL_FLAG(A) (ssl->flag &= ~A) +#define IS_SET_SSL_FLAG(A) (ssl->flag & A) + +#define MAX_KEY_BYTE_SIZE 512 /* for a 4096 bit key */ +#define RT_MAX_PLAIN_LENGTH 16384 +#define RT_EXTRA 1024 +#define BM_RECORD_OFFSET 5 + +#ifdef CONFIG_SSL_SKELETON_MODE +#define NUM_PROTOCOLS 1 +#else +#define NUM_PROTOCOLS 4 +#endif + +#define PARANOIA_CHECK(A, B) if (A < B) { \ + ret = SSL_ERROR_INVALID_HANDSHAKE; goto error; } + +/* protocol types */ +enum +{ + PT_CHANGE_CIPHER_SPEC = 20, + PT_ALERT_PROTOCOL, + PT_HANDSHAKE_PROTOCOL, + PT_APP_PROTOCOL_DATA +}; + +/* handshaking types */ +enum +{ + HS_HELLO_REQUEST, + HS_CLIENT_HELLO, + HS_SERVER_HELLO, + HS_CERTIFICATE = 11, + HS_SERVER_KEY_XCHG, + HS_CERT_REQ, + HS_SERVER_HELLO_DONE, + HS_CERT_VERIFY, + HS_CLIENT_KEY_XCHG, + HS_FINISHED = 20 +}; + +typedef struct +{ + uint8_t cipher; + uint8_t key_size; + uint8_t iv_size; + uint8_t key_block_size; + uint8_t padding_size; + uint8_t digest_size; + hmac_func hmac; + crypt_func encrypt; + crypt_func decrypt; +} cipher_info_t; + +struct _SSLObjLoader +{ + uint8_t *buf; + int len; +}; + +typedef struct _SSLObjLoader SSLObjLoader; + +typedef struct +{ + time_t conn_time; + uint8_t session_id[SSL_SESSION_ID_SIZE]; + uint8_t master_secret[SSL_SECRET_SIZE]; +} SSL_SESSION; + +typedef struct +{ + uint8_t *buf; + int size; +} SSL_CERT; + +typedef struct +{ + MD5_CTX md5_ctx; + SHA1_CTX sha1_ctx; + uint8_t final_finish_mac[SSL_FINISHED_HASH_SIZE]; + uint8_t *key_block; + uint8_t master_secret[SSL_SECRET_SIZE]; + uint8_t client_random[SSL_RANDOM_SIZE]; /* client's random sequence */ + uint8_t server_random[SSL_RANDOM_SIZE]; /* server's random sequence */ + uint16_t bm_proc_index; +} DISPOSABLE_CTX; + +struct _SSL +{ + uint32_t flag; + uint16_t need_bytes; + uint16_t got_bytes; + uint8_t record_type; + uint8_t cipher; + uint8_t sess_id_size; + uint8_t version; + uint8_t client_version; + int16_t next_state; + int16_t hs_status; + DISPOSABLE_CTX *dc; /* temporary data which we'll get rid of soon */ + int client_fd; + const cipher_info_t *cipher_info; + void *encrypt_ctx; + void *decrypt_ctx; + /* protocol negotiation shared read/write state */ + uint8_t bm_all_data[RT_MAX_PLAIN_LENGTH+RT_EXTRA]; + uint8_t *bm_data; + uint16_t bm_read_index; + uint16_t bm_index; + struct _SSL *next; /* doubly linked list */ + struct _SSL *prev; + struct _SSL_CTX *ssl_ctx; /* back reference to a clnt/svr ctx */ + + /* asynchronous client ssl_read specific duplicates of above: */ + uint16_t rneed_bytes; + uint16_t rgot_bytes; + uint8_t bm_read_data[RT_MAX_PLAIN_LENGTH+RT_EXTRA]; + uint8_t *bm_rdata; + uint16_t bm_rread_index; + uint8_t hmac_rheader[SSL_RECORD_SIZE]; /* client rx hmac */ + uint8_t rrecord_type; + int need_record; + +#ifndef CONFIG_SSL_SKELETON_MODE + uint16_t session_index; + SSL_SESSION *session; +#endif +#ifdef CONFIG_SSL_CERT_VERIFICATION + X509_CTX *x509_ctx; +#endif + + uint8_t session_id[SSL_SESSION_ID_SIZE]; + uint8_t client_mac[SHA1_SIZE]; /* for HMAC verification */ + uint8_t server_mac[SHA1_SIZE]; /* for HMAC verification */ + uint8_t read_sequence[8]; /* 64 bit sequence number */ + uint8_t write_sequence[8]; /* 64 bit sequence number */ + uint8_t hmac_header[SSL_RECORD_SIZE]; /* rx hmac */ +}; + +typedef struct _SSL SSL; + +struct _SSL_CTX +{ + uint32_t options; + uint8_t chain_length; + RSA_CTX *rsa_ctx; +#ifdef CONFIG_SSL_CERT_VERIFICATION + CA_CERT_CTX *ca_cert_ctx; +#endif + SSL *head; + SSL *tail; + SSL_CERT certs[CONFIG_SSL_MAX_CERTS]; +#ifndef CONFIG_SSL_SKELETON_MODE + uint16_t num_sessions; + SSL_SESSION **ssl_sessions; +#endif +#ifdef CONFIG_SSL_CTX_MUTEXING + SSL_CTX_MUTEX_TYPE mutex; +#endif +#ifdef CONFIG_OPENSSL_COMPATIBLE + void *bonus_attr; +#endif +}; + +typedef struct _SSL_CTX SSL_CTX; + +/* backwards compatibility */ +typedef struct _SSL_CTX SSLCTX; + +extern const uint8_t ssl_prot_prefs[NUM_PROTOCOLS]; + +SSL *ssl_new(SSL_CTX *ssl_ctx, int client_fd); +void disposable_new(SSL *ssl); +void disposable_free(SSL *ssl); +int send_packet(SSL *ssl, uint8_t protocol, + const uint8_t *in, int length); +int do_svr_handshake(SSL *ssl, int handshake_type, uint8_t *buf, int hs_len); +int do_clnt_handshake(SSL *ssl, int handshake_type, uint8_t *buf, int hs_len); +int process_finished(SSL *ssl, uint8_t *buf, int hs_len); +int process_sslv23_client_hello(SSL *ssl); +int send_alert(SSL *ssl, int error_code); +int send_finished(SSL *ssl); +int send_certificate(SSL *ssl); +int basic_read(SSL *ssl, uint8_t **in_data); +int send_change_cipher_spec(SSL *ssl); +void finished_digest(SSL *ssl, const char *label, uint8_t *digest); +void generate_master_secret(SSL *ssl, const uint8_t *premaster_secret); +void add_packet(SSL *ssl, const uint8_t *pkt, int len); +int add_cert(SSL_CTX *ssl_ctx, const uint8_t *buf, int len); +int add_private_key(SSL_CTX *ssl_ctx, SSLObjLoader *ssl_obj); +void ssl_obj_free(SSLObjLoader *ssl_obj); +int pkcs8_decode(SSL_CTX *ssl_ctx, SSLObjLoader *ssl_obj, const char *password); +int pkcs12_decode(SSL_CTX *ssl_ctx, SSLObjLoader *ssl_obj, const char *password); +int load_key_certs(SSL_CTX *ssl_ctx); +#ifdef CONFIG_SSL_CERT_VERIFICATION +int add_cert_auth(SSL_CTX *ssl_ctx, const uint8_t *buf, int len); +void remove_ca_certs(CA_CERT_CTX *ca_cert_ctx); +#endif +#ifdef CONFIG_SSL_ENABLE_CLIENT +int do_client_connect(SSL *ssl); +#endif + +#ifdef CONFIG_SSL_FULL_MODE +void DISPLAY_STATE(SSL *ssl, int is_send, uint8_t state, int not_ok); +void DISPLAY_BYTES(SSL *ssl, const char *format, + const uint8_t *data, int size, ...); +void DISPLAY_CERT(SSL *ssl, const X509_CTX *x509_ctx); +void DISPLAY_RSA(SSL *ssl, const RSA_CTX *rsa_ctx); +void DISPLAY_ALERT(SSL *ssl, int alert); +#else +#define DISPLAY_STATE(A,B,C,D) +#define DISPLAY_CERT(A,B) +#define DISPLAY_RSA(A,B) +#define DISPLAY_ALERT(A, B) +#ifdef WIN32 +void DISPLAY_BYTES(SSL *ssl, const char *format,/* win32 has no variadic macros */ + const uint8_t *data, int size, ...); +#else +#define DISPLAY_BYTES(A,B,C,D,...) +#endif +#endif + +#ifdef CONFIG_SSL_CERT_VERIFICATION +int process_certificate(SSL *ssl, X509_CTX **x509_ctx); +#endif + +SSL_SESSION *ssl_session_update(int max_sessions, + SSL_SESSION *ssl_sessions[], SSL *ssl, + const uint8_t *session_id); +void kill_ssl_session(SSL_SESSION **ssl_sessions, SSL *ssl); + +#ifdef __cplusplus +} +#endif + +#endif diff --git a/ccast/axTLS/tls1_clnt.c b/ccast/axTLS/tls1_clnt.c new file mode 100644 index 0000000..cb8b990 --- /dev/null +++ b/ccast/axTLS/tls1_clnt.c @@ -0,0 +1,397 @@ +/* + * Copyright (c) 2007, Cameron Rich + * + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * * Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * * Neither the name of the axTLS project nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, + * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF + * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING + * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include +#include +#include +#include +#include "os_port.h" +#include "ssl.h" + +#ifdef CONFIG_SSL_ENABLE_CLIENT /* all commented out if no client */ + +static int send_client_hello(SSL *ssl); +static int process_server_hello(SSL *ssl); +static int process_server_hello_done(SSL *ssl); +static int send_client_key_xchg(SSL *ssl); +static int process_cert_req(SSL *ssl); +static int send_cert_verify(SSL *ssl); + +/* + * Establish a new SSL connection to an SSL server. + */ +EXP_FUNC SSL * STDCALL ssl_client_new(SSL_CTX *ssl_ctx, int client_fd, const + uint8_t *session_id, uint8_t sess_id_size) +{ + SSL *ssl = ssl_new(ssl_ctx, client_fd); + ssl->version = SSL_PROTOCOL_VERSION_MAX; /* try top version first */ + + if (session_id && ssl_ctx->num_sessions) + { + if (sess_id_size > SSL_SESSION_ID_SIZE) /* validity check */ + { + ssl_free(ssl); + return NULL; + } + + memcpy(ssl->session_id, session_id, sess_id_size); + ssl->sess_id_size = sess_id_size; + SET_SSL_FLAG(SSL_SESSION_RESUME); /* just flag for later */ + } + + SET_SSL_FLAG(SSL_IS_CLIENT); + do_client_connect(ssl); + return ssl; +} + +/* + * Process the handshake record. + */ +int do_clnt_handshake(SSL *ssl, int handshake_type, uint8_t *buf, int hs_len) +{ + int ret; + + /* To get here the state must be valid */ + switch (handshake_type) + { + case HS_SERVER_HELLO: + ret = process_server_hello(ssl); + break; + + case HS_CERTIFICATE: + ret = process_certificate(ssl, &ssl->x509_ctx); + break; + + case HS_SERVER_HELLO_DONE: + if ((ret = process_server_hello_done(ssl)) == SSL_OK) + { + if (IS_SET_SSL_FLAG(SSL_HAS_CERT_REQ)) + { + if ((ret = send_certificate(ssl)) == SSL_OK && + (ret = send_client_key_xchg(ssl)) == SSL_OK) + { + send_cert_verify(ssl); + } + } + else + { + ret = send_client_key_xchg(ssl); + } + + if (ret == SSL_OK && + (ret = send_change_cipher_spec(ssl)) == SSL_OK) + { + ret = send_finished(ssl); + } + } + break; + + case HS_CERT_REQ: + ret = process_cert_req(ssl); + break; + + case HS_FINISHED: + ret = process_finished(ssl, buf, hs_len); + disposable_free(ssl); /* free up some memory */ + /* note: client renegotiation is not allowed after this */ + break; + + case HS_HELLO_REQUEST: + disposable_new(ssl); + ret = do_client_connect(ssl); + break; + + default: + ret = SSL_ERROR_INVALID_HANDSHAKE; + break; + } + + return ret; +} + +/* + * Do the handshaking from the beginning. + */ +int do_client_connect(SSL *ssl) +{ + int ret = SSL_OK; + + send_client_hello(ssl); /* send the client hello */ + ssl->bm_read_index = 0; + ssl->bm_rread_index = 0; + ssl->next_state = HS_SERVER_HELLO; + ssl->hs_status = SSL_NOT_OK; /* not connected */ + + /* sit in a loop until it all looks good */ + if (!IS_SET_SSL_FLAG(SSL_CONNECT_IN_PARTS)) + { + while (ssl->hs_status != SSL_OK) + { + /* Use internal, synchronous ssl_read */ + ret = ssl_readi(ssl, NULL); + + if (ret < SSL_OK) + break; + } + + ssl->hs_status = ret; /* connected? */ + } + + return ret; +} + +/* + * Send the initial client hello. + */ +static int send_client_hello(SSL *ssl) +{ + uint8_t *buf = ssl->bm_data; + time_t tm = time(NULL); + uint8_t *tm_ptr = &buf[6]; /* time will go here */ + int i, offset; + + buf[0] = HS_CLIENT_HELLO; + buf[1] = 0; + buf[2] = 0; + /* byte 3 is calculated later */ + buf[4] = 0x03; + buf[5] = ssl->version & 0x0f; + + /* client random value - spec says that 1st 4 bytes are big endian time */ + *tm_ptr++ = (uint8_t)(((long)tm & 0xff000000) >> 24); + *tm_ptr++ = (uint8_t)(((long)tm & 0x00ff0000) >> 16); + *tm_ptr++ = (uint8_t)(((long)tm & 0x0000ff00) >> 8); + *tm_ptr++ = (uint8_t)(((long)tm & 0x000000ff)); + get_random(SSL_RANDOM_SIZE-4, &buf[10]); + memcpy(ssl->dc->client_random, &buf[6], SSL_RANDOM_SIZE); + offset = 6 + SSL_RANDOM_SIZE; + + /* give session resumption a go */ + if (IS_SET_SSL_FLAG(SSL_SESSION_RESUME)) /* set initially by user */ + { + buf[offset++] = ssl->sess_id_size; + memcpy(&buf[offset], ssl->session_id, ssl->sess_id_size); + offset += ssl->sess_id_size; + CLR_SSL_FLAG(SSL_SESSION_RESUME); /* clear so we can set later */ + } + else + { + /* no session id - because no session resumption just yet */ + buf[offset++] = 0; + } + + buf[offset++] = 0; /* number of ciphers */ + buf[offset++] = NUM_PROTOCOLS*2;/* number of ciphers */ + + /* put all our supported protocols in our request */ + for (i = 0; i < NUM_PROTOCOLS; i++) + { + buf[offset++] = 0; /* cipher we are using */ + buf[offset++] = ssl_prot_prefs[i]; + } + + buf[offset++] = 1; /* no compression */ + buf[offset++] = 0; + buf[3] = offset - 4; /* handshake size */ + + return send_packet(ssl, PT_HANDSHAKE_PROTOCOL, NULL, offset); +} + +/* + * Process the server hello. + */ +static int process_server_hello(SSL *ssl) +{ + uint8_t *buf = ssl->bm_data; + int pkt_size = ssl->bm_index; + int num_sessions = ssl->ssl_ctx->num_sessions; + uint8_t sess_id_size; + int offset, ret = SSL_OK; + + /* check that we are talking to a TLSv1 server */ + uint8_t version = (buf[4] << 4) + buf[5]; + if (version > SSL_PROTOCOL_VERSION_MAX) + { + version = SSL_PROTOCOL_VERSION_MAX; + } + else if (ssl->version < SSL_PROTOCOL_MIN_VERSION) + { + ret = SSL_ERROR_INVALID_VERSION; + ssl_display_error(ret); + goto error; + } + + ssl->version = version; + + /* get the server random value */ + memcpy(ssl->dc->server_random, &buf[6], SSL_RANDOM_SIZE); + offset = 6 + SSL_RANDOM_SIZE; /* skip of session id size */ + sess_id_size = buf[offset++]; + + if (sess_id_size > SSL_SESSION_ID_SIZE) + { + ret = SSL_ERROR_INVALID_SESSION; + goto error; + } + + if (num_sessions) + { + ssl->session = ssl_session_update(num_sessions, + ssl->ssl_ctx->ssl_sessions, ssl, &buf[offset]); + memcpy(ssl->session->session_id, &buf[offset], sess_id_size); + + /* pad the rest with 0's */ + if (sess_id_size < SSL_SESSION_ID_SIZE) + { + memset(&ssl->session->session_id[sess_id_size], 0, + SSL_SESSION_ID_SIZE-sess_id_size); + } + } + + memcpy(ssl->session_id, &buf[offset], sess_id_size); + ssl->sess_id_size = sess_id_size; + offset += sess_id_size; + + /* get the real cipher we are using */ + ssl->cipher = buf[++offset]; + ssl->next_state = IS_SET_SSL_FLAG(SSL_SESSION_RESUME) ? + HS_FINISHED : HS_CERTIFICATE; + + offset++; // skip the compr + PARANOIA_CHECK(pkt_size, offset); + ssl->dc->bm_proc_index = offset+1; + +error: + return ret; +} + +/** + * Process the server hello done message. + */ +static int process_server_hello_done(SSL *ssl) +{ + ssl->next_state = HS_FINISHED; + return SSL_OK; +} + +/* + * Send a client key exchange message. + */ +static int send_client_key_xchg(SSL *ssl) +{ + uint8_t *buf = ssl->bm_data; + uint8_t premaster_secret[SSL_SECRET_SIZE]; + int enc_secret_size = -1; + + buf[0] = HS_CLIENT_KEY_XCHG; + buf[1] = 0; + + premaster_secret[0] = 0x03; /* encode the version number */ + premaster_secret[1] = SSL_PROTOCOL_MINOR_VERSION; /* must be TLS 1.1 */ + get_random(SSL_SECRET_SIZE-2, &premaster_secret[2]); + DISPLAY_RSA(ssl, ssl->x509_ctx->rsa_ctx); + + /* rsa_ctx->bi_ctx is not thread-safe */ + SSL_CTX_LOCK(ssl->ssl_ctx->mutex); + enc_secret_size = RSA_encrypt(ssl->x509_ctx->rsa_ctx, premaster_secret, + SSL_SECRET_SIZE, &buf[6], 0); + SSL_CTX_UNLOCK(ssl->ssl_ctx->mutex); + + buf[2] = (enc_secret_size + 2) >> 8; + buf[3] = (enc_secret_size + 2) & 0xff; + buf[4] = enc_secret_size >> 8; + buf[5] = enc_secret_size & 0xff; + + generate_master_secret(ssl, premaster_secret); + return send_packet(ssl, PT_HANDSHAKE_PROTOCOL, NULL, enc_secret_size+6); +} + +/* + * Process the certificate request. + */ +static int process_cert_req(SSL *ssl) +{ + uint8_t *buf = &ssl->bm_data[ssl->dc->bm_proc_index]; + int ret = SSL_OK; + int offset = (buf[2] << 4) + buf[3]; + int pkt_size = ssl->bm_index; + + /* don't do any processing - we will send back an RSA certificate anyway */ + ssl->next_state = HS_SERVER_HELLO_DONE; + SET_SSL_FLAG(SSL_HAS_CERT_REQ); + ssl->dc->bm_proc_index += offset; + PARANOIA_CHECK(pkt_size, offset); +error: + return ret; +} + +/* + * Send a certificate verify message. + */ +static int send_cert_verify(SSL *ssl) +{ + uint8_t *buf = ssl->bm_data; + uint8_t dgst[MD5_SIZE+SHA1_SIZE]; + RSA_CTX *rsa_ctx = ssl->ssl_ctx->rsa_ctx; + int n = 0, ret; + + DISPLAY_RSA(ssl, rsa_ctx); + + buf[0] = HS_CERT_VERIFY; + buf[1] = 0; + + finished_digest(ssl, NULL, dgst); /* calculate the digest */ + + /* rsa_ctx->bi_ctx is not thread-safe */ + if (rsa_ctx) + { + SSL_CTX_LOCK(ssl->ssl_ctx->mutex); + n = RSA_encrypt(rsa_ctx, dgst, sizeof(dgst), &buf[6], 1); + SSL_CTX_UNLOCK(ssl->ssl_ctx->mutex); + + if (n == 0) + { + ret = SSL_ERROR_INVALID_KEY; + goto error; + } + } + + buf[4] = n >> 8; /* add the RSA size (not officially documented) */ + buf[5] = n & 0xff; + n += 2; + buf[2] = n >> 8; + buf[3] = n & 0xff; + ret = send_packet(ssl, PT_HANDSHAKE_PROTOCOL, NULL, n+4); + +error: + return ret; +} + +#endif /* CONFIG_SSL_ENABLE_CLIENT */ diff --git a/ccast/axTLS/tls1_svr.c b/ccast/axTLS/tls1_svr.c new file mode 100644 index 0000000..51c9d76 --- /dev/null +++ b/ccast/axTLS/tls1_svr.c @@ -0,0 +1,478 @@ +/* + * Copyright (c) 2007, Cameron Rich + * + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * * Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * * Neither the name of the axTLS project nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, + * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF + * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING + * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include +#include +#include +#include "os_port.h" +#include "ssl.h" + +static const uint8_t g_hello_done[] = { HS_SERVER_HELLO_DONE, 0, 0, 0 }; + +static int process_client_hello(SSL *ssl); +static int send_server_hello_sequence(SSL *ssl); +static int send_server_hello(SSL *ssl); +static int send_server_hello_done(SSL *ssl); +static int process_client_key_xchg(SSL *ssl); +#ifdef CONFIG_SSL_CERT_VERIFICATION +static int send_certificate_request(SSL *ssl); +static int process_cert_verify(SSL *ssl); +#endif + +/* + * Establish a new SSL connection to an SSL client. + */ +EXP_FUNC SSL * STDCALL ssl_server_new(SSL_CTX *ssl_ctx, int client_fd) +{ + SSL *ssl; + + ssl = ssl_new(ssl_ctx, client_fd); + ssl->next_state = HS_CLIENT_HELLO; + +#ifdef CONFIG_SSL_FULL_MODE + if (ssl_ctx->chain_length == 0) + printf("Warning - no server certificate defined\n"); TTY_FLUSH(); +#endif + + return ssl; +} + +/* + * Process the handshake record. + */ +int do_svr_handshake(SSL *ssl, int handshake_type, uint8_t *buf, int hs_len) +{ + int ret = SSL_OK; + ssl->hs_status = SSL_NOT_OK; /* not connected */ + + /* To get here the state must be valid */ + switch (handshake_type) + { + case HS_CLIENT_HELLO: + if ((ret = process_client_hello(ssl)) == SSL_OK) + ret = send_server_hello_sequence(ssl); + break; + +#ifdef CONFIG_SSL_CERT_VERIFICATION + case HS_CERTIFICATE:/* the client sends its cert */ + ret = process_certificate(ssl, &ssl->x509_ctx); + + if (ret == SSL_OK) /* verify the cert */ + { + int cert_res; + cert_res = x509_verify( + ssl->ssl_ctx->ca_cert_ctx, ssl->x509_ctx); + ret = (cert_res == 0) ? SSL_OK : SSL_X509_ERROR(cert_res); + } + break; + + case HS_CERT_VERIFY: + ret = process_cert_verify(ssl); + add_packet(ssl, buf, hs_len); /* needs to be done after */ + break; +#endif + case HS_CLIENT_KEY_XCHG: + ret = process_client_key_xchg(ssl); + break; + + case HS_FINISHED: + ret = process_finished(ssl, buf, hs_len); + disposable_free(ssl); /* free up some memory */ + break; + } + + return ret; +} + +/* + * Process a client hello message. + */ +static int process_client_hello(SSL *ssl) +{ + uint8_t *buf = ssl->bm_data; + uint8_t *record_buf = ssl->hmac_header; + int pkt_size = ssl->bm_index; + int i, j, cs_len, id_len, offset = 6 + SSL_RANDOM_SIZE; + int ret = SSL_OK; + + uint8_t version = (buf[4] << 4) + buf[5]; + ssl->version = ssl->client_version = version; + + if (version > SSL_PROTOCOL_VERSION_MAX) + { + /* use client's version instead */ + ssl->version = SSL_PROTOCOL_VERSION_MAX; + } + else if (version < SSL_PROTOCOL_MIN_VERSION) /* old version supported? */ + { + ret = SSL_ERROR_INVALID_VERSION; + ssl_display_error(ret); + goto error; + } + + memcpy(ssl->dc->client_random, &buf[6], SSL_RANDOM_SIZE); + + /* process the session id */ + id_len = buf[offset++]; + if (id_len > SSL_SESSION_ID_SIZE) + { + return SSL_ERROR_INVALID_SESSION; + } + +#ifndef CONFIG_SSL_SKELETON_MODE + ssl->session = ssl_session_update(ssl->ssl_ctx->num_sessions, + ssl->ssl_ctx->ssl_sessions, ssl, id_len ? &buf[offset] : NULL); +#endif + + offset += id_len; + cs_len = (buf[offset]<<8) + buf[offset+1]; + offset += 3; /* add 1 due to all cipher suites being 8 bit */ + + PARANOIA_CHECK(pkt_size, offset); + + /* work out what cipher suite we are going to use - client defines + the preference */ + for (i = 0; i < cs_len; i += 2) + { + for (j = 0; j < NUM_PROTOCOLS; j++) + { + if (ssl_prot_prefs[j] == buf[offset+i]) /* got a match? */ + { + ssl->cipher = ssl_prot_prefs[j]; + goto do_state; + } + } + } + + /* ouch! protocol is not supported */ + ret = SSL_ERROR_NO_CIPHER; + +do_state: +error: + return ret; +} + +#ifdef CONFIG_SSL_ENABLE_V23_HANDSHAKE +/* + * Some browsers use a hybrid SSLv2 "client hello" + */ +int process_sslv23_client_hello(SSL *ssl) +{ + uint8_t *buf = ssl->bm_data; + int bytes_needed = ((buf[0] & 0x7f) << 8) + buf[1]; + int ret = SSL_OK; + + /* we have already read 3 extra bytes so far */ + int read_len = SOCKET_READ(ssl->client_fd, buf, bytes_needed-3); + int cs_len = buf[1]; + int id_len = buf[3]; + int ch_len = buf[5]; + int i, j, offset = 8; /* start at first cipher */ + int random_offset = 0; + + DISPLAY_BYTES(ssl, "received %d bytes", buf, read_len, read_len); + + add_packet(ssl, buf, read_len); + + /* connection has gone, so die */ + if (bytes_needed < 0) + { + return SSL_ERROR_CONN_LOST; + } + + /* now work out what cipher suite we are going to use */ + for (j = 0; j < NUM_PROTOCOLS; j++) + { + for (i = 0; i < cs_len; i += 3) + { + if (ssl_prot_prefs[j] == buf[offset+i]) + { + ssl->cipher = ssl_prot_prefs[j]; + goto server_hello; + } + } + } + + /* ouch! protocol is not supported */ + ret = SSL_ERROR_NO_CIPHER; + goto error; + +server_hello: + /* get the session id */ + offset += cs_len - 2; /* we've gone 2 bytes past the end */ +#ifndef CONFIG_SSL_SKELETON_MODE + ssl->session = ssl_session_update(ssl->ssl_ctx->num_sessions, + ssl->ssl_ctx->ssl_sessions, ssl, id_len ? &buf[offset] : NULL); +#endif + + /* get the client random data */ + offset += id_len; + + /* random can be anywhere between 16 and 32 bytes long - so it is padded + * with 0's to the left */ + if (ch_len == 0x10) + { + random_offset += 0x10; + } + + memcpy(&ssl->dc->client_random[random_offset], &buf[offset], ch_len); + ret = send_server_hello_sequence(ssl); + +error: + return ret; +} +#endif + +/* + * Send the entire server hello sequence + */ +static int send_server_hello_sequence(SSL *ssl) +{ + int ret; + + if ((ret = send_server_hello(ssl)) == SSL_OK) + { +#ifndef CONFIG_SSL_SKELETON_MODE + /* resume handshake? */ + if (IS_SET_SSL_FLAG(SSL_SESSION_RESUME)) + { + if ((ret = send_change_cipher_spec(ssl)) == SSL_OK) + { + ret = send_finished(ssl); + ssl->next_state = HS_FINISHED; + } + } + else +#endif + if ((ret = send_certificate(ssl)) == SSL_OK) + { +#ifdef CONFIG_SSL_CERT_VERIFICATION + /* ask the client for its certificate */ + if (IS_SET_SSL_FLAG(SSL_CLIENT_AUTHENTICATION)) + { + if ((ret = send_certificate_request(ssl)) == SSL_OK) + { + ret = send_server_hello_done(ssl); + ssl->next_state = HS_CERTIFICATE; + } + } + else +#endif + { + ret = send_server_hello_done(ssl); + ssl->next_state = HS_CLIENT_KEY_XCHG; + } + } + } + + return ret; +} + +/* + * Send a server hello message. + */ +static int send_server_hello(SSL *ssl) +{ + uint8_t *buf = ssl->bm_data; + int offset = 0; + + buf[0] = HS_SERVER_HELLO; + buf[1] = 0; + buf[2] = 0; + /* byte 3 is calculated later */ + buf[4] = 0x03; + buf[5] = ssl->version & 0x0f; + + /* server random value */ + get_random(SSL_RANDOM_SIZE, &buf[6]); + memcpy(ssl->dc->server_random, &buf[6], SSL_RANDOM_SIZE); + offset = 6 + SSL_RANDOM_SIZE; + +#ifndef CONFIG_SSL_SKELETON_MODE + if (IS_SET_SSL_FLAG(SSL_SESSION_RESUME)) + { + /* retrieve id from session cache */ + buf[offset++] = SSL_SESSION_ID_SIZE; + memcpy(&buf[offset], ssl->session->session_id, SSL_SESSION_ID_SIZE); + memcpy(ssl->session_id, ssl->session->session_id, SSL_SESSION_ID_SIZE); + ssl->sess_id_size = SSL_SESSION_ID_SIZE; + offset += SSL_SESSION_ID_SIZE; + } + else /* generate our own session id */ +#endif + { +#ifndef CONFIG_SSL_SKELETON_MODE + buf[offset++] = SSL_SESSION_ID_SIZE; + get_random(SSL_SESSION_ID_SIZE, &buf[offset]); + memcpy(ssl->session_id, &buf[offset], SSL_SESSION_ID_SIZE); + ssl->sess_id_size = SSL_SESSION_ID_SIZE; + + /* store id in session cache */ + if (ssl->ssl_ctx->num_sessions) + { + memcpy(ssl->session->session_id, + ssl->session_id, SSL_SESSION_ID_SIZE); + } + + offset += SSL_SESSION_ID_SIZE; +#else + buf[offset++] = 0; /* don't bother with session id in skelton mode */ +#endif + } + + buf[offset++] = 0; /* cipher we are using */ + buf[offset++] = ssl->cipher; + buf[offset++] = 0; /* no compression */ + buf[3] = offset - 4; /* handshake size */ + return send_packet(ssl, PT_HANDSHAKE_PROTOCOL, NULL, offset); +} + +/* + * Send the server hello done message. + */ +static int send_server_hello_done(SSL *ssl) +{ + return send_packet(ssl, PT_HANDSHAKE_PROTOCOL, + g_hello_done, sizeof(g_hello_done)); +} + +/* + * Pull apart a client key exchange message. Decrypt the pre-master key (using + * our RSA private key) and then work out the master key. Initialise the + * ciphers. + */ +static int process_client_key_xchg(SSL *ssl) +{ + uint8_t *buf = &ssl->bm_data[ssl->dc->bm_proc_index]; + int pkt_size = ssl->bm_index; + int premaster_size, secret_length = (buf[2] << 8) + buf[3]; + uint8_t premaster_secret[MAX_KEY_BYTE_SIZE]; + RSA_CTX *rsa_ctx = ssl->ssl_ctx->rsa_ctx; + int offset = 4; + int ret = SSL_OK; + + if (rsa_ctx == NULL) + { + ret = SSL_ERROR_NO_CERT_DEFINED; + goto error; + } + + /* is there an extra size field? */ + if ((secret_length - 2) == rsa_ctx->num_octets) + offset += 2; + + PARANOIA_CHECK(pkt_size, rsa_ctx->num_octets+offset); + + /* rsa_ctx->bi_ctx is not thread-safe */ + SSL_CTX_LOCK(ssl->ssl_ctx->mutex); + premaster_size = RSA_decrypt(rsa_ctx, &buf[offset], premaster_secret, 1); + SSL_CTX_UNLOCK(ssl->ssl_ctx->mutex); + + if (premaster_size != SSL_SECRET_SIZE || + premaster_secret[0] != 0x03 || /* must be the same as client + offered version */ + premaster_secret[1] != (ssl->client_version & 0x0f)) + { + /* guard against a Bleichenbacher attack */ + get_random(SSL_SECRET_SIZE, premaster_secret); + /* and continue - will die eventually when checking the mac */ + } + +#if 0 + print_blob("pre-master", premaster_secret, SSL_SECRET_SIZE); +#endif + + generate_master_secret(ssl, premaster_secret); + +#ifdef CONFIG_SSL_CERT_VERIFICATION + ssl->next_state = IS_SET_SSL_FLAG(SSL_CLIENT_AUTHENTICATION) ? + HS_CERT_VERIFY : HS_FINISHED; +#else + ssl->next_state = HS_FINISHED; +#endif + + ssl->dc->bm_proc_index += rsa_ctx->num_octets+offset; +error: + return ret; +} + +#ifdef CONFIG_SSL_CERT_VERIFICATION +static const uint8_t g_cert_request[] = { HS_CERT_REQ, 0, 0, 4, 1, 0, 0, 0 }; + +/* + * Send the certificate request message. + */ +static int send_certificate_request(SSL *ssl) +{ + return send_packet(ssl, PT_HANDSHAKE_PROTOCOL, + g_cert_request, sizeof(g_cert_request)); +} + +/* + * Ensure the client has the private key by first decrypting the packet and + * then checking the packet digests. + */ +static int process_cert_verify(SSL *ssl) +{ + uint8_t *buf = &ssl->bm_data[ssl->dc->bm_proc_index]; + int pkt_size = ssl->bm_index; + uint8_t dgst_buf[MAX_KEY_BYTE_SIZE]; + uint8_t dgst[MD5_SIZE+SHA1_SIZE]; + X509_CTX *x509_ctx = ssl->x509_ctx; + int ret = SSL_OK; + int n; + + PARANOIA_CHECK(pkt_size, x509_ctx->rsa_ctx->num_octets+6); + DISPLAY_RSA(ssl, x509_ctx->rsa_ctx); + + /* rsa_ctx->bi_ctx is not thread-safe */ + SSL_CTX_LOCK(ssl->ssl_ctx->mutex); + n = RSA_decrypt(x509_ctx->rsa_ctx, &buf[6], dgst_buf, 0); + SSL_CTX_UNLOCK(ssl->ssl_ctx->mutex); + + if (n != SHA1_SIZE + MD5_SIZE) + { + ret = SSL_ERROR_INVALID_KEY; + goto end_cert_vfy; + } + + finished_digest(ssl, NULL, dgst); /* calculate the digest */ + if (memcmp(dgst_buf, dgst, MD5_SIZE + SHA1_SIZE)) + { + ret = SSL_ERROR_INVALID_KEY; + } + +end_cert_vfy: + ssl->next_state = HS_FINISHED; +error: + return ret; +} + +#endif diff --git a/ccast/axTLS/version.h b/ccast/axTLS/version.h new file mode 100644 index 0000000..e8158cc --- /dev/null +++ b/ccast/axTLS/version.h @@ -0,0 +1 @@ +#define AXTLS_VERSION "1.4.9" diff --git a/ccast/axTLS/x509.c b/ccast/axTLS/x509.c new file mode 100644 index 0000000..c2ca49f --- /dev/null +++ b/ccast/axTLS/x509.c @@ -0,0 +1,561 @@ +/* + * Copyright (c) 2007, Cameron Rich + * + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * * Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * * Neither the name of the axTLS project nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, + * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF + * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING + * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +/** + * @file x509.c + * + * Certificate processing. + */ + +#include +#include +#include +#include +#include "os_port.h" +#include "crypto_misc.h" + +#ifdef CONFIG_SSL_CERT_VERIFICATION +/** + * Retrieve the signature from a certificate. + */ +static const uint8_t *get_signature(const uint8_t *asn1_sig, int *len) +{ + int offset = 0; + const uint8_t *ptr = NULL; + + if (asn1_next_obj(asn1_sig, &offset, ASN1_SEQUENCE) < 0 || + asn1_skip_obj(asn1_sig, &offset, ASN1_SEQUENCE)) + goto end_get_sig; + + if (asn1_sig[offset++] != ASN1_OCTET_STRING) + goto end_get_sig; + *len = get_asn1_length(asn1_sig, &offset); + ptr = &asn1_sig[offset]; /* all ok */ + +end_get_sig: + return ptr; +} + +#endif + +/** + * Construct a new x509 object. + * @return 0 if ok. < 0 if there was a problem. + */ +int x509_new(const uint8_t *cert, int *len, X509_CTX **ctx) +{ + int begin_tbs, end_tbs; + int ret = X509_NOT_OK, offset = 0, cert_size = 0; + X509_CTX *x509_ctx; + BI_CTX *bi_ctx; + + *ctx = (X509_CTX *)calloc(1, sizeof(X509_CTX)); + x509_ctx = *ctx; + + /* get the certificate size */ + asn1_skip_obj(cert, &cert_size, ASN1_SEQUENCE); + + if (asn1_next_obj(cert, &offset, ASN1_SEQUENCE) < 0) + goto end_cert; + + begin_tbs = offset; /* start of the tbs */ + end_tbs = begin_tbs; /* work out the end of the tbs */ + asn1_skip_obj(cert, &end_tbs, ASN1_SEQUENCE); + + if (asn1_next_obj(cert, &offset, ASN1_SEQUENCE) < 0) + goto end_cert; + + if (cert[offset] == ASN1_EXPLICIT_TAG) /* optional version */ + { + if (asn1_version(cert, &offset, x509_ctx)) + goto end_cert; + } + + if (asn1_skip_obj(cert, &offset, ASN1_INTEGER) || /* serial number */ + asn1_next_obj(cert, &offset, ASN1_SEQUENCE) < 0) + goto end_cert; + + /* make sure the signature is ok */ + if (asn1_signature_type(cert, &offset, x509_ctx)) + { + ret = X509_VFY_ERROR_UNSUPPORTED_DIGEST; + goto end_cert; + } + + if (asn1_name(cert, &offset, x509_ctx->ca_cert_dn) || + asn1_validity(cert, &offset, x509_ctx) || + asn1_name(cert, &offset, x509_ctx->cert_dn) || + asn1_public_key(cert, &offset, x509_ctx)) + { + goto end_cert; + } + + bi_ctx = x509_ctx->rsa_ctx->bi_ctx; + +#ifdef CONFIG_SSL_CERT_VERIFICATION /* only care if doing verification */ + /* use the appropriate signature algorithm (SHA1/MD5/MD2) */ + if (x509_ctx->sig_type == SIG_TYPE_MD5) + { + MD5_CTX md5_ctx; + uint8_t md5_dgst[MD5_SIZE]; + MD5_Init(&md5_ctx); + MD5_Update(&md5_ctx, &cert[begin_tbs], end_tbs-begin_tbs); + MD5_Final(md5_dgst, &md5_ctx); + x509_ctx->digest = bi_import(bi_ctx, md5_dgst, MD5_SIZE); + } + else if (x509_ctx->sig_type == SIG_TYPE_SHA1) + { + SHA1_CTX sha_ctx; + uint8_t sha_dgst[SHA1_SIZE]; + SHA1_Init(&sha_ctx); + SHA1_Update(&sha_ctx, &cert[begin_tbs], end_tbs-begin_tbs); + SHA1_Final(sha_dgst, &sha_ctx); + x509_ctx->digest = bi_import(bi_ctx, sha_dgst, SHA1_SIZE); + } + else if (x509_ctx->sig_type == SIG_TYPE_MD2) + { + MD2_CTX md2_ctx; + uint8_t md2_dgst[MD2_SIZE]; + MD2_Init(&md2_ctx); + MD2_Update(&md2_ctx, &cert[begin_tbs], end_tbs-begin_tbs); + MD2_Final(md2_dgst, &md2_ctx); + x509_ctx->digest = bi_import(bi_ctx, md2_dgst, MD2_SIZE); + } + + if (cert[offset] == ASN1_V3_DATA) + { + int suboffset; + + ++offset; + get_asn1_length(cert, &offset); + + if ((suboffset = asn1_find_subjectaltname(cert, offset)) > 0) + { + if (asn1_next_obj(cert, &suboffset, ASN1_OCTET_STRING) > 0) + { + int altlen; + + if ((altlen = asn1_next_obj(cert, + &suboffset, ASN1_SEQUENCE)) > 0) + { + int endalt = suboffset + altlen; + int totalnames = 0; + + while (suboffset < endalt) + { + int type = cert[suboffset++]; + int dnslen = get_asn1_length(cert, &suboffset); + + if (type == ASN1_CONTEXT_DNSNAME) + { + x509_ctx->subject_alt_dnsnames = (char**) + realloc(x509_ctx->subject_alt_dnsnames, + (totalnames + 2) * sizeof(char*)); + x509_ctx->subject_alt_dnsnames[totalnames] = + (char*)malloc(dnslen + 1); + x509_ctx->subject_alt_dnsnames[totalnames+1] = NULL; + memcpy(x509_ctx->subject_alt_dnsnames[totalnames], + cert + suboffset, dnslen); + x509_ctx->subject_alt_dnsnames[ + totalnames][dnslen] = 0; + ++totalnames; + } + + suboffset += dnslen; + } + } + } + } + } + + offset = end_tbs; /* skip the rest of v3 data */ + if (asn1_skip_obj(cert, &offset, ASN1_SEQUENCE) || + asn1_signature(cert, &offset, x509_ctx)) + goto end_cert; +#endif + ret = X509_OK; +end_cert: + if (len) + { + *len = cert_size; + } + + if (ret) + { +#ifdef CONFIG_SSL_FULL_MODE + printf("Error: Invalid X509 ASN.1 file (%s)\n", + x509_display_error(ret)); +#endif + x509_free(x509_ctx); + *ctx = NULL; + } + + return ret; +} + +/** + * Free an X.509 object's resources. + */ +void x509_free(X509_CTX *x509_ctx) +{ + X509_CTX *next; + int i; + + if (x509_ctx == NULL) /* if already null, then don't bother */ + return; + + for (i = 0; i < X509_NUM_DN_TYPES; i++) + { + free(x509_ctx->ca_cert_dn[i]); + free(x509_ctx->cert_dn[i]); + } + + free(x509_ctx->signature); + +#ifdef CONFIG_SSL_CERT_VERIFICATION + if (x509_ctx->digest) + { + bi_free(x509_ctx->rsa_ctx->bi_ctx, x509_ctx->digest); + } + + if (x509_ctx->subject_alt_dnsnames) + { + for (i = 0; x509_ctx->subject_alt_dnsnames[i]; ++i) + free(x509_ctx->subject_alt_dnsnames[i]); + + free(x509_ctx->subject_alt_dnsnames); + } +#endif + + RSA_free(x509_ctx->rsa_ctx); + next = x509_ctx->next; + free(x509_ctx); + x509_free(next); /* clear the chain */ +} + +#ifdef CONFIG_SSL_CERT_VERIFICATION +/** + * Take a signature and decrypt it. + */ +static bigint *sig_verify(BI_CTX *ctx, const uint8_t *sig, int sig_len, + bigint *modulus, bigint *pub_exp) +{ + int i, size; + bigint *decrypted_bi, *dat_bi; + bigint *bir = NULL; + uint8_t *block = (uint8_t *)malloc(sig_len); + + /* decrypt */ + dat_bi = bi_import(ctx, sig, sig_len); + ctx->mod_offset = BIGINT_M_OFFSET; + + /* convert to a normal block */ + decrypted_bi = bi_mod_power2(ctx, dat_bi, modulus, pub_exp); + + bi_export(ctx, decrypted_bi, block, sig_len); + ctx->mod_offset = BIGINT_M_OFFSET; + + i = 10; /* start at the first possible non-padded byte */ + while (block[i++] && i < sig_len); + size = sig_len - i; + + /* get only the bit we want */ + if (size > 0) + { + int len; + const uint8_t *sig_ptr = get_signature(&block[i], &len); + + if (sig_ptr) + { + bir = bi_import(ctx, sig_ptr, len); + } + } + + /* save a few bytes of memory */ + bi_clear_cache(ctx); + free(block); + return bir; +} + +/** + * Do some basic checks on the certificate chain. + * + * Certificate verification consists of a number of checks: + * - The date of the certificate is after the start date. + * - The date of the certificate is before the finish date. + * - A root certificate exists in the certificate store. + * - That the certificate(s) are not self-signed. + * - The certificate chain is valid. + * - The signature of the certificate is valid. + */ +int x509_verify(const CA_CERT_CTX *ca_cert_ctx, const X509_CTX *cert) +{ + int ret = X509_OK, i = 0; + bigint *cert_sig; + X509_CTX *next_cert = NULL; + BI_CTX *ctx = NULL; + bigint *mod = NULL, *expn = NULL; + int match_ca_cert = 0; + struct timeval tv; + uint8_t is_self_signed = 0; + + if (cert == NULL) + { + ret = X509_VFY_ERROR_NO_TRUSTED_CERT; + goto end_verify; + } + + /* a self-signed certificate that is not in the CA store - use this + to check the signature */ + if (asn1_compare_dn(cert->ca_cert_dn, cert->cert_dn) == 0) + { + is_self_signed = 1; + ctx = cert->rsa_ctx->bi_ctx; + mod = cert->rsa_ctx->m; + expn = cert->rsa_ctx->e; + } + + gettimeofday(&tv, NULL); + + /* check the not before date */ + if (tv.tv_sec < cert->not_before) + { + ret = X509_VFY_ERROR_NOT_YET_VALID; + goto end_verify; + } + + /* check the not after date */ + if (tv.tv_sec > cert->not_after) + { + ret = X509_VFY_ERROR_EXPIRED; + goto end_verify; + } + + next_cert = cert->next; + + /* last cert in the chain - look for a trusted cert */ + if (next_cert == NULL) + { + if (ca_cert_ctx != NULL) + { + /* go thu the CA store */ + while (i < CONFIG_X509_MAX_CA_CERTS && ca_cert_ctx->cert[i]) + { + if (asn1_compare_dn(cert->ca_cert_dn, + ca_cert_ctx->cert[i]->cert_dn) == 0) + { + /* use this CA certificate for signature verification */ + match_ca_cert = 1; + ctx = ca_cert_ctx->cert[i]->rsa_ctx->bi_ctx; + mod = ca_cert_ctx->cert[i]->rsa_ctx->m; + expn = ca_cert_ctx->cert[i]->rsa_ctx->e; + break; + } + + i++; + } + } + + /* couldn't find a trusted cert (& let self-signed errors + be returned) */ + if (!match_ca_cert && !is_self_signed) + { + ret = X509_VFY_ERROR_NO_TRUSTED_CERT; + goto end_verify; + } + } + else if (asn1_compare_dn(cert->ca_cert_dn, next_cert->cert_dn) != 0) + { + /* check the chain */ + ret = X509_VFY_ERROR_INVALID_CHAIN; + goto end_verify; + } + else /* use the next certificate in the chain for signature verify */ + { + ctx = next_cert->rsa_ctx->bi_ctx; + mod = next_cert->rsa_ctx->m; + expn = next_cert->rsa_ctx->e; + } + + /* cert is self signed */ + if (!match_ca_cert && is_self_signed) + { + ret = X509_VFY_ERROR_SELF_SIGNED; + goto end_verify; + } + + /* check the signature */ + cert_sig = sig_verify(ctx, cert->signature, cert->sig_len, + bi_clone(ctx, mod), bi_clone(ctx, expn)); + + if (cert_sig && cert->digest) + { + if (bi_compare(cert_sig, cert->digest) != 0) + ret = X509_VFY_ERROR_BAD_SIGNATURE; + + + bi_free(ctx, cert_sig); + } + else + { + ret = X509_VFY_ERROR_BAD_SIGNATURE; + } + + if (ret) + goto end_verify; + + /* go down the certificate chain using recursion. */ + if (next_cert != NULL) + { + ret = x509_verify(ca_cert_ctx, next_cert); + } + +end_verify: + return ret; +} +#endif + +#if defined (CONFIG_SSL_FULL_MODE) +/** + * Used for diagnostics. + */ +static const char *not_part_of_cert = ""; +void x509_print(const X509_CTX *cert, CA_CERT_CTX *ca_cert_ctx) +{ + if (cert == NULL) + return; + + printf("=== CERTIFICATE ISSUED TO ===\n"); + printf("Common Name (CN):\t\t"); + printf("%s\n", cert->cert_dn[X509_COMMON_NAME] ? + cert->cert_dn[X509_COMMON_NAME] : not_part_of_cert); + + printf("Organization (O):\t\t"); + printf("%s\n", cert->cert_dn[X509_ORGANIZATION] ? + cert->cert_dn[X509_ORGANIZATION] : not_part_of_cert); + + printf("Organizational Unit (OU):\t"); + printf("%s\n", cert->cert_dn[X509_ORGANIZATIONAL_UNIT] ? + cert->cert_dn[X509_ORGANIZATIONAL_UNIT] : not_part_of_cert); + + printf("=== CERTIFICATE ISSUED BY ===\n"); + printf("Common Name (CN):\t\t"); + printf("%s\n", cert->ca_cert_dn[X509_COMMON_NAME] ? + cert->ca_cert_dn[X509_COMMON_NAME] : not_part_of_cert); + + printf("Organization (O):\t\t"); + printf("%s\n", cert->ca_cert_dn[X509_ORGANIZATION] ? + cert->ca_cert_dn[X509_ORGANIZATION] : not_part_of_cert); + + printf("Organizational Unit (OU):\t"); + printf("%s\n", cert->ca_cert_dn[X509_ORGANIZATIONAL_UNIT] ? + cert->ca_cert_dn[X509_ORGANIZATIONAL_UNIT] : not_part_of_cert); + + printf("Not Before:\t\t\t%s", ctime(&cert->not_before)); + printf("Not After:\t\t\t%s", ctime(&cert->not_after)); + printf("RSA bitsize:\t\t\t%d\n", cert->rsa_ctx->num_octets*8); + printf("Sig Type:\t\t\t"); + switch (cert->sig_type) + { + case SIG_TYPE_MD5: + printf("MD5\n"); + break; + case SIG_TYPE_SHA1: + printf("SHA1\n"); + break; + case SIG_TYPE_MD2: + printf("MD2\n"); + break; + default: + printf("Unrecognized: %d\n", cert->sig_type); + break; + } + + if (ca_cert_ctx) + { + printf("Verify:\t\t\t\t%s\n", + x509_display_error(x509_verify(ca_cert_ctx, cert))); + } + +#if 0 + print_blob("Signature", cert->signature, cert->sig_len); + bi_print("Modulus", cert->rsa_ctx->m); + bi_print("Pub Exp", cert->rsa_ctx->e); +#endif + + if (ca_cert_ctx) + { + x509_print(cert->next, ca_cert_ctx); + } + + TTY_FLUSH(); +} + +#endif /* CONFIG_SSL_FULL_MODE */ + +const char * x509_display_error(int error) +{ + switch (error) + { + case X509_OK: + return "Certificate verify successful"; + + case X509_NOT_OK: + return "X509 not ok"; + + case X509_VFY_ERROR_NO_TRUSTED_CERT: + return "No trusted cert is available"; + + case X509_VFY_ERROR_BAD_SIGNATURE: + return "Bad signature"; + + case X509_VFY_ERROR_NOT_YET_VALID: + return "Cert is not yet valid"; + + case X509_VFY_ERROR_EXPIRED: + return "Cert has expired"; + + case X509_VFY_ERROR_SELF_SIGNED: + return "Cert is self-signed"; + + case X509_VFY_ERROR_INVALID_CHAIN: + return "Chain is invalid (check order of certs)"; + + case X509_VFY_ERROR_UNSUPPORTED_DIGEST: + return "Unsupported digest"; + + case X509_INVALID_PRIV_KEY: + return "Invalid private key"; + + default: + return "Unknown"; + } +} + diff --git a/ccast/cast_channel.proto b/ccast/cast_channel.proto new file mode 100644 index 0000000..d321eaf --- /dev/null +++ b/ccast/cast_channel.proto @@ -0,0 +1,79 @@ +// Copyright 2013 The Chromium Authors. All rights reserved. +// Use of this source code is governed by a BSD-style license that can be +// found in the LICENSE file. + +syntax = "proto2"; + +option optimize_for = LITE_RUNTIME; + +package extensions.api.cast_channel; + +message CastMessage { + // Always pass a version of the protocol for future compatibility + // requirements. + enum ProtocolVersion { + CASTV2_1_0 = 0; + } + required ProtocolVersion protocol_version = 1; + + // source and destination ids identify the origin and destination of the + // message. They are used to route messages between endpoints that share a + // device-to-device channel. + // + // For messages between applications: + // - The sender application id is a unique identifier generated on behalf of + // the sender application. + // - The receiver id is always the the session id for the application. + // + // For messages to or from the sender or receiver platform, the special ids + // 'sender-0' and 'receiver-0' can be used. + // + // For messages intended for all endpoints using a given channel, the + // wildcard destination_id '*' can be used. + required string source_id = 2; + required string destination_id = 3; + + // This is the core multiplexing key. All messages are sent on a namespace + // and endpoints sharing a channel listen on one or more namespaces. The + // namespace defines the protocol and semantics of the message. + required string namespace = 4; + + // Encoding and payload info follows. + + // What type of data do we have in this message. + enum PayloadType { + STRING = 0; + BINARY = 1; + } + required PayloadType payload_type = 5; + + // Depending on payload_type, exactly one of the following optional fields + // will always be set. + optional string payload_utf8 = 6; + optional bytes payload_binary = 7; +} + +// Messages for authentication protocol between a sender and a receiver. +message AuthChallenge { +} + +message AuthResponse { + required bytes signature = 1; + required bytes client_auth_certificate = 2; +} + +message AuthError { + enum ErrorType { + INTERNAL_ERROR = 0; + NO_TLS = 1; // The underlying connection is not TLS + } + required ErrorType error_type = 1; +} + +message DeviceAuthMessage { + // Request fields + optional AuthChallenge challenge = 1; + // Response fields + optional AuthResponse response = 2; + optional AuthError error = 3; +} diff --git a/ccast/ccast.c b/ccast/ccast.c new file mode 100644 index 0000000..5c1ed7b --- /dev/null +++ b/ccast/ccast.c @@ -0,0 +1,1319 @@ + +/* + * Argyll Color Correction System + * ChromCast support. + * + * Author: Graeme W. Gill + * Date: 10/9/2014 + * + * Copyright 2014 Graeme W. Gill + * All rights reserved. + * + * This material is licenced under the GNU AFFERO GENERAL PUBLIC LICENSE Version 3 :- + * see the License2.txt file for licencing details. + * + */ + +#include +#include +#include +#include +#include +#include +#include "copyright.h" +#include "aconfig.h" +#ifndef SALONEINSTLIB +#include "numlib.h" +#else +#include "numsup.h" +#endif +#include "yajl.h" +#include "conv.h" +#include "base64.h" +#include "ccpacket.h" +#include "ccmes.h" +#include "ccast.h" + +#undef DEBUG +#undef CHECK_JSON + +#ifdef DEBUG +# define dbgo stdout +# define DBG(xxx) fprintf xxx ; +void cc_dump_bytes(FILE *fp, char *pfx, unsigned char *buf, int len); +#else +# define DBG(xxx) ; +#endif /* DEBUG */ + +#define START_TRIES 6 +#define LOAD_TRIES 4 + +/* - - - - - - - - - - - - - - - - - - - - - - - - */ + +#ifdef CHECK_JSON + +/* Check if JSON is invalid */ +/* Exits if invalid */ +static void check_json(char *mesbuf) { + yajl_val node; + char errbuf[1024]; + + if ((node = yajl_tree_parse(mesbuf, errbuf, sizeof(errbuf))) == NULL) { + fprintf(dbgo,"yajl_tree_parse of send message failed with '%s'\n",errbuf); + fprintf(dbgo,"JSON = '%s'\n",mesbuf); + exit(1); + } + yajl_tree_free(node); +} +#endif + +/* ============================================================ */ +/* Receive thread */ + +/* Read messages. If they are ones we deal with, send a reply */ +/* If they are anonomous (sessionId == 0), then ignore them */ +/* (Could save last known anonomous message if they prove useful) */ +/* and if they are numbered, keep then in a sorted list. */ + +static int cc_rec_thread(void *context) { + ccast *p = (ccast *)context; + ccmessv *sv = p->messv; + ccmessv_err merr; + ccmes mes, smes; + int errc = 0; + char errbuf[1024]; + yajl_val tyn, idn; + int rv = 0; + + DBG((dbgo,"ccthread starting\n")) + + ccmes_init(&mes); + ccmes_init(&smes); + + /* Preset PONG message */ + smes.source_id = "sender-0"; + smes.destination_id = "receiver-0"; + smes.namespace = "urn:x-cast:com.google.cast.tp.heartbeat"; + smes.binary = 0; + smes.data = (ORD8 *)"{ \"type\": \"PONG\" }"; + + for(;!p->stop;) { + + if ((merr = sv->receive(sv, &mes)) != ccmessv_OK) { + if (merr == ccmessv_timeout) { + DBG((dbgo,"ccthread: got receive timeout (OK)\n")) + msec_sleep(100); + } else { + DBG((dbgo,"ccthread: messv->receive failed with '%s'\n",ccmessv_emes(merr))) + msec_sleep(100); +#ifdef NEVER +//This won't work - we need to re-join the session etc., + if (p->messv->pk->reconnect(p->messv->pk)) { + DBG((dbgo,"ccthread: reconnect after error failed\n")) + rv = 1; + break; + } +#endif + if (errc++ > 20) { /* Too many failures */ + DBG((dbgo,"ccthread: too many errors - giving up\n")) + /* Hmm. The connection seems to have gone down ? */ + rv = 1; + break; + } + } + continue; + } + + errc = 0; + + /* Got status query */ + if (mes.mtype != NULL && strcmp(mes.mtype, "CLOSE") == 0) { + /* Hmm. That indicates an error */ + + DBG((dbgo,"ccthread: got CLOSE message - giving up\n")) + rv = 1; + break; + + } else if (mes.mtype != NULL && strcmp(mes.mtype, "PING") == 0) { + if ((merr = sv->send(sv, &smes)) != ccmessv_OK) { + DBG((dbgo,"ccthread: send PONG failed with '%s'\n",ccmessv_emes(merr))) + } + + /* Got reply - add to linked list */ + } else { + int found; +#ifdef DEBUG + if (p->w_rq) { + DBG((dbgo,"ccthread: waiting for ns '%s' and mes->ns '%s'\n", + p->w_rqns, mes.namespace)) + DBG((dbgo,"ccthread: waiting for id %d and mes->id %d\n", + p->w_rqid, mes.rqid)) + } else { + DBG((dbgo,"ccthread: has no client waiting\n")) + } +#endif + + /* Is it the one the client is waiting for ? */ + found = (p->w_rq != 0 + && (p->w_rqns == NULL || strcmp(p->w_rqns, mes.namespace) == 0) + && (p->w_rqid == 0 || p->w_rqid == mes.rqid)); + + if (found || mes.rqid != 0) { + ccmes *nmes; + if ((nmes = (ccmes *)calloc(1, sizeof(ccmes))) == NULL) { + DBG((dbgo,"ccthread: calloc failed\n")) + } else { + ccmes_transfer(nmes, &mes); + + DBG((dbgo,"ccthread: adding message type '%s' id %d to list (found %d)\n",nmes->mtype,nmes->rqid,found)) + amutex_lock(p->rlock); /* We're modifying p->rmes list */ + nmes->next = p->rmes; /* Put at start of list */ + p->rmes = nmes; + + /* Client is waiting for this */ + if (found) { + DBG((dbgo,"ccthread: client was waiting for this message\n")) + acond_signal(p->rcond); + } + amutex_unlock(p->rlock); /* We've finished modifying p->rmes list */ + } + } + } + + /* Got anonomous status message */ + ccmes_empty(&mes); + } + DBG((dbgo, "ccthread: about to exit - stop = %d\n",p->stop)) + + /* We're bailing out or stopping */ + p->stopped = 1; + + /* Release client if it was waiting */ + amutex_lock(p->rlock); + if (p->w_rq != 0) { + DBG((dbgo,"ccthread: client was waiting for message - abort it\n")) + acond_signal(p->rcond); + } + amutex_unlock(p->rlock); + + DBG((dbgo,"ccthread returning %d\n",rv)) + + return rv; +} + +/* Wait for a specific message rqid on a specific channel. */ +/* Use rqid = 0 to get first message rather than specific one. */ +/* Use namespace = NULL to ignore channel */ +/* Return 1 on an error */ +/* Return 2 on a timeout */ +static int get_a_reply_id(ccast *p, char *namespace, int rqid, ccmes *rmes, int to) { + ccmes *nlist = NULL; + ccmes *mes, *xmes, *fmes = NULL; + int rv = 0; + + DBG((dbgo," get_a_reply_id getting namespace '%s' id %d\n", + namespace == NULL ? "(none)" : namespace, rqid)) + + amutex_lock(p->rlock); /* We're modifying p->rmes list */ + + if (p->stop || p->stopped) { + amutex_unlock(p->rlock); /* Allow thread to modify p->rmes list */ + DBG((dbgo," get_a_reply_id: thread is stopping or stopped\n")) + return 1; + } + + /* Setup request to thread */ + p->w_rq = 1; + p->w_rqns = namespace; + p->w_rqid = rqid; + + /* Until we've got our message, we time out, or the thread is being stopped */ + for (;!p->stop && !p->stopped;) { + + /* Check if the message has already been received */ + for (mes = p->rmes; mes != NULL; mes = xmes) { + int ins = (namespace == NULL || strcmp(namespace, mes->namespace) == 0); + xmes = mes->next; + if (ins && rqid != 0 && mes->rqid < rqid) { + ccmes_del(mes); /* Too old - throw away */ + } else if (ins && (rqid == 0 || mes->rqid == rqid)) { + fmes = mes; /* The one we want */ + } else { + mes->next = nlist; /* Keep in list */ + nlist = mes; + } + } + p->rmes = nlist; + + if (fmes != NULL) + break; /* Got it */ + + +#ifndef NEVER + /* We need to wait until it turns up */ + /* Allow thread to modify p->rmes list and signal us */ + if (acond_timedwait(p->rcond, p->rlock, to) != 0) { + DBG((dbgo," get_a_reply_id timed out after %f secs\n",to/1000.0)) + rv = 2; + break; + } +#else + acond_wait(p->rcond, p->rlock); +#endif + DBG((dbgo," get_a_reply_id got released\n")) + } + p->w_rq = 0; /* We're not looking for anything now */ + amutex_unlock(p->rlock); /* Allow thread to modify p->rmes list */ + + if (p->stop || p->stopped) { + DBG((dbgo," get_a_reply_id failed because thread is stopped or stopping\n")) + ccmes_init(rmes); + return 1; + } + + if (rv != 0) { + DBG((dbgo," get_a_reply_id returning error %d\n",rv)) + } else { + ccmes_transfer(rmes, fmes); + DBG((dbgo," get_a_reply_id returning type '%s' id %d\n",rmes->mtype,rmes->rqid)) + } + + return rv; +} + +/* ============================================================ */ + +void ccast_delete_from_cleanup_list(ccast *p); + +/* Cleanup any created objects */ +static void cleanup_ccast(ccast *p) { + + DBG((dbgo," cleanup_ccast() called\n")) + + p->stop = 1; /* Tell the thread to exit */ + + /* Wait for thread (could use semaphore) */ + /* and then delete it */ + if (p->rmesth != NULL) { + + while (!p->stopped) { + msec_sleep(10); + } + p->rmesth->del(p->rmesth); + p->rmesth = NULL; + } + + if (p->sessionId != NULL) { + free(p->sessionId); + p->sessionId = NULL; + } + + if (p->transportId != NULL) { + free(p->transportId); + p->transportId = NULL; + } + + p->mediaSessionId = 0; + + if (p->messv != NULL) { + p->messv->del(p->messv); + p->messv = NULL; + } + + /* Clean up linked list */ + { + ccmes *mes, *xmes; + for (mes = p->rmes; mes != NULL; mes = xmes) { + xmes = mes->next; + ccmes_del(mes); + } + p->rmes = NULL; + } +} + +/* Shut down the connection, in such a way that we can */ +/* try and re-connect. */ +static void shutdown_ccast(ccast *p) { + ccmes mes; + + DBG((dbgo," shutdown_ccast() called\n")) + + ccmes_init(&mes); + + p->stop = 1; /* Tell the thread to exit */ + + /* Close the media channel */ + if (p->transportId != NULL && p->messv != NULL) { + mes.source_id = "sender-0"; + mes.destination_id = p->transportId; + mes.namespace = "urn:x-cast:com.google.cast.tp.connection"; + mes.binary = 0; + mes.data = (ORD8 *)"{ \"type\": \"CLOSE\" }"; + p->messv->send(p->messv, &mes); + } + + /* Stop the application */ + if (p->sessionId != NULL && p->messv != NULL) { + int reqid = ++p->requestId; + char mesbuf[1024]; + sprintf(mesbuf, "{ \"requestId\": %d, \"type\": \"STOP\", \"sessionId\": \"%s\" }", + reqid, p->sessionId); + mes.source_id = "sender-0"; + mes.destination_id = "receiver-0"; + mes.namespace = "urn:x-cast:com.google.cast.receiver"; + mes.binary = 0; + mes.data = (ORD8 *)mesbuf; + p->messv->send(p->messv, &mes); + } + + /* Close the platform channel */ + if (p->messv != NULL) { + mes.source_id = "sender-0"; + mes.destination_id = "receiver-0"; + mes.namespace = "urn:x-cast:com.google.cast.receiver"; + mes.binary = 0; + mes.data = (ORD8 *)"{ \"type\": \"CLOSE\" }"; + p->messv->send(p->messv, &mes); + } + + cleanup_ccast(p); +} + +static void del_ccast(ccast *p) { + if (p != NULL) { + + shutdown_ccast(p); + + amutex_del(p->rlock); + acond_del(p->rcond); + + free(p); + } +} + +static int load_ccast(ccast *p, char *url, unsigned char *ibuf, size_t ilen, + double bg[3], double x, double y, double w, double h); +void ccast_install_signal_handlers(ccast *p); + +/* Startup a ChromCast session */ +/* Return nz on error */ +static int start_ccast(ccast *p) { + ccpacket *pk = NULL; + ccpacket_err perr; + ccmessv_err merr; + ccmes mes, rmes; + char mesbuf[1024]; + int reqid, tries, maxtries = START_TRIES; + char *connection_chan = "urn:x-cast:com.google.cast.tp.connection"; + char *heartbeat_chan = "urn:x-cast:com.google.cast.tp.heartbeat"; + char *receiver_chan = "urn:x-cast:com.google.cast.receiver"; + + /* Try this a few times if we fail in some way */ + for (tries = 0; tries < maxtries; tries++) { + int app = 0, naps = 2; + + /* Use the default receiver rather than pattern generator */ + if (p->forcedef || getenv("ARGYLL_CCAST_DEFAULT_RECEIVER") != NULL) + app = 1; + + ccmes_init(&mes); + ccmes_init(&rmes); + + p->stop = 0; + p->stopped = 0; +// p->requestId = 0; + + amutex_init(p->rlock); + acond_init(p->rcond); + + /* Hmm. Could put creation of pk inside new_ccmessv() ? */ + if ((pk = new_ccpacket()) == NULL) { + DBG((dbgo,"start_ccast: new_ccpacket() failed\n")) + goto retry; + } + + if ((perr = pk->connect(pk, p->id.ip, 8009)) != ccpacket_OK) { + DBG((dbgo,"start_ccast: ccpacket connect failed with '%s'\n",ccpacket_emes(perr))) + goto retry; + } + + DBG((dbgo,"Got TLS connection to '%s\n'",p->id.name)) + + if ((p->messv = new_ccmessv(pk)) == NULL) { + DBG((dbgo,"start_ccast: new_ccmessv() failed\n")) + goto retry; + } + pk = NULL; /* Will get deleted with messv now */ + + /* Attempt a connection */ + mes.source_id = "sender-0"; + mes.destination_id = "receiver-0"; + mes.namespace = connection_chan; + mes.binary = 0; + mes.data = (ORD8 *)"{ \"type\": \"CONNECT\" }"; + if ((merr = p->messv->send(p->messv, &mes)) != ccmessv_OK) { + DBG((dbgo,"start_ccast: CONNECT failed with '%s'\n",ccmessv_emes(merr))) + goto retry; + } + + /* Start the thread. */ + /* We don't want to start this until the TLS negotiations and */ + /* the synchronous ssl_readi()'s it uses are complete. */ + if ((p->rmesth = new_athread(cc_rec_thread, (void *)p)) == NULL) { + DBG((dbgo,"start_ccast: creating message thread failed\n")) + goto retry; + } + +#ifdef NEVER + /* Send a ping */ + mes.namespace = heartbeat_chan; + mes.data = (ORD8 *)"{ \"type\": \"PING\" }"; + if ((merr = p->messv->send(p->messv, &mes)) != ccmessv_OK) { + DBG((dbgo,"start_ccast: PING failed with '%s'\n",ccmessv_emes(merr))) + return 1; + } + + /* Wait for a PONG */ +// get_a_reply(p->messv, NULL); +#endif + + /* Try and find an app we can work with */ + for (; app < naps; app++) { + char *appid; + + reqid = ++p->requestId; + + if (app == 0) { + appid = "B5C2CBFC"; /* Pattern generator reciever */ + p->patgenrcv = 1; + p->load_delay = 350.0; + } else { + appid = "CC1AD845"; /* Default Receiver */ + p->patgenrcv = 0; + p->load_delay = 1500.0; /* Actually about 600msec, but fade produces a soft */ + /* transition that instrument meas_delay() doesn't cope with accurately. */ + } + + /* Attempt to launch the Default receiver */ + sprintf(mesbuf, "{ \"requestId\": %d, \"type\": \"LAUNCH\", \"appId\": \"%s\" }", + reqid, appid); + + DBG((dbgo,"start_ccast: about to do LAUNCH\n")) + /* Launch the default application */ + /* (Presumably we would use the com.google.cast.receiver channel */ + /* for monitoring and controlling the reciever) */ + mes.namespace = receiver_chan; + mes.data = (ORD8 *)mesbuf; + if ((merr = p->messv->send(p->messv, &mes)) != ccmessv_OK) { + DBG((dbgo,"start_ccast: LAUNCH failed with '%s'\n",ccmessv_emes(merr))) + goto retry; + } + + /* Receive the RECEIVER_STATUS status messages until it is ready to cast */ + /* and get the sessionId and transportId */ + /* We get periodic notification messages (requestId=0) as well as */ + /* a response messages to our requestId */ + + /* Wait for a reply to the LAUNCH (15 sec) */ + if (get_a_reply_id(p, receiver_chan, reqid, &rmes, 15000) != 0) { + DBG((dbgo,"start_ccast: LAUNCH failed to get a reply\n")) + goto retry; + } + + if (rmes.mtype != NULL + && strcmp(rmes.mtype, "RECEIVER_STATUS") == 0 + && rmes.tnode != NULL) { + break; /* Launched OK */ + } + + if (rmes.mtype == NULL + || strcmp(rmes.mtype, "LAUNCH_ERROR") != 0 + || rmes.tnode == NULL + || (app+1) >= naps) { + DBG((dbgo,"start_ccast: LAUNCH failed to get a RECEIVER_STATUS or LAUNCH ERROR reply\n")) + ccmes_empty(&rmes); + goto retry; + } + + /* Try the next application */ + } + + DBG((dbgo,"start_ccast: LAUNCH soceeded, load delay = %d msec\n",p->load_delay)) + { + yajl_val idn, tpn; + if ((idn = yajl_tree_get_first(rmes.tnode, "sessionId", yajl_t_string)) == NULL + || (tpn = yajl_tree_get_first(rmes.tnode, "transportId", yajl_t_string)) == NULL) { + DBG((dbgo,"start_ccast: LAUNCH failed to get sessionId & transportId\n")) + ccmes_empty(&rmes); + goto retry; + } + p->sessionId = strdup(YAJL_GET_STRING(idn)); + p->transportId = strdup(YAJL_GET_STRING(tpn)); + if (p->sessionId == NULL || p->transportId == NULL) { + DBG((dbgo,"start_ccast: strdup failed\n")) + ccmes_empty(&rmes); + goto retry; + } + } + ccmes_empty(&rmes); + + DBG((dbgo,"### Got sessionId = '%s', transportId = '%s'\n",p->sessionId, p->transportId)) + + /* Connect up to the reciever media channels */ + mes.destination_id = p->transportId; + mes.namespace = connection_chan; + mes.data = (ORD8 *)"{ \"type\": \"CONNECT\" }"; + if ((merr = p->messv->send(p->messv, &mes)) != ccmessv_OK) { + DBG((dbgo,"messv->send CONNECT failed with '%s'\n",ccmessv_emes(merr))) + goto retry; + } + + // Hmm. Should we wait for a RECEIVER_STATUS message with id 0 here ? + + /* If we get here, we assume that we've suceeded */ + break; + + retry:; + + /* If we get here, we're going around again, so start again from scratch */ + if (pk != NULL) { + pk->del(pk); + pk = NULL; + } + + cleanup_ccast(p); + + } + + if (tries >= maxtries) { + DBG((dbgo,"Failed to start ChromeCast\n")) + return 1; + } + + DBG((dbgo,"Succeeded in starting ChromeCast\n")) + + ccast_install_signal_handlers(p); + + return 0; +} + + + +/* Get the extra load delay */ +static int get_load_delay(ccast *p) { + return p->load_delay; +} + +/* Return nz if we can send PNG directly as base64 + bg RGB, */ +/* else have to setup webserver and send URL */ +static int get_direct_send(ccast *p) { + return p->patgenrcv; +} + +/* Create a new ChromeCast */ +/* Return NULL on error */ +ccast *new_ccast(ccast_id *id, +int forcedef) { + ccast *p = NULL; + + if ((p = (ccast *)calloc(1, sizeof(ccast))) == NULL) { + DBG((dbgo, "new_ccast: calloc failed\n")) + return NULL; + } + + /* Init method pointers */ + p->del = del_ccast; + p->load = load_ccast; + p->shutdown = shutdown_ccast; + p->get_load_delay = get_load_delay; + p->get_direct_send = get_direct_send; + + p->forcedef = forcedef; + + ccast_id_copy(&p->id, id); + + /* Establish communications */ + if (start_ccast(p)) { + del_ccast(p); + return NULL; + } + + return p; +} + +/* Load up a URL */ +/* Returns nz on error: */ +/* 1 send error */ +/* 2 receieve error */ +/* 3 invalid player state/load failed/load cancelled */ +static int load_ccast( + ccast *p, + char *url, /* URL to load, NULL if sent in-line */ + unsigned char *ibuf, size_t ilen,/* PNG image to load, NULL if url */ + double bg[3], /* Background color RGB */ + double x, double y, /* Window location and size as prop. of display */ + double w, double h /* Size as multiplier of default 10% width */ +) { + ccmessv_err merr; + int reqid, firstid, lastid; + ccmes mes; + char *media_chan = "urn:x-cast:com.google.cast.media"; + char *direct_chan = "urn:x-cast:net.hoech.cast.patterngenerator"; + char *receiver_chan = "urn:x-cast:com.google.cast.receiver"; +// char *player_message_chan = "urn:x-cast:com.google.cast.player.message"; + int dchan = 0; /* Using direct channel */ + int i, maxtries = LOAD_TRIES, rv = 0; + + ccmes_init(&mes); + + /* Retry loop */ + for (i = 0; ; i++) { + unsigned char *iibuf = ibuf; + size_t iilen = ilen; + firstid = lastid = reqid = ++p->requestId; + + DBG((dbgo,"##### load_ccast try %d/%d\n",i+1,maxtries)) + + if (p->messv == NULL) { + DBG((dbgo,"mes->send LOAD failed due to lost connection\n")) + + } else { + + if (url == NULL && !p->patgenrcv) { + DBG((dbgo,"mes->send not given URL\n")) + return 1; + } + + /* Send the LOAD URL command */ + if (url != NULL) { + char *xl, mesbuf[1024]; + + xl = strrchr(url, '.'); // Get extension location + + if (xl != NULL && stricmp(xl, ".webm") == 0) { + sprintf(mesbuf, "{ \"requestId\": %d, \"type\": \"LOAD\", \"media\": " + "{ \"contentId\": \"%s\",", reqid, url); + strcat(mesbuf, + "\"contentType\": \"video/webm\" }," + "\"autplay\": \"true\" }"); + + } else if (xl != NULL && stricmp(xl, ".mp4") == 0) { + sprintf(mesbuf, "{ \"requestId\": %d, \"type\": \"LOAD\", \"media\": " + "{ \"contentId\": \"%s\",", reqid, url); + strcat(mesbuf, + "\"contentType\": \"video/mp4\" }," + "\"autplay\": \"true\" }"); + + } else { /* Assume PNG */ + sprintf(mesbuf, "{ \"requestId\": %d, \"type\": \"LOAD\", \"media\": " + "{ \"contentId\": \"%s\",", reqid, url); + strcat(mesbuf, + "\"contentType\": \"image/png\" } }"); + } + + mes.source_id = "sender-0"; + mes.destination_id = p->transportId; + mes.namespace = media_chan; + mes.binary = 0; + mes.data = (ORD8 *)mesbuf; +#ifdef CHECK_JSON + check_json((char *)mes.data); +#endif + if ((merr = p->messv->send(p->messv, &mes)) != ccmessv_OK) { + DBG((dbgo,"mes->send LOAD failed with '%s'\n",ccmessv_emes(merr))) + rv = 1; + goto retry; /* Failed */ + } + +#ifdef NEVER + /* Send base64 PNG image & background color definition in one message */ + /* This will fail if the message is > 64K */ + } else if (iibuf != NULL) { + char *mesbuf, *cp; + int dlen; + + if ((mesbuf = malloc(1024 + EBASE64LEN(iilen))) == NULL) { + DBG((dbgo,"mes->send malloc failed\n")) + return 1; + } + + cp = mesbuf; + cp += sprintf(cp, "{ \"requestId\": %d, \"type\": \"LOAD\", \"media\": " + "{ \"contentId\": \"data:image/png;base64,",reqid); + ebase64(&dlen, cp, iibuf, iilen); + cp += dlen; + DBG((dbgo,"base64 encoded PNG = %d bytes\n",dlen)) + sprintf(cp, "|rgb(%d, %d, %d)|%f|%f|%f|%f\"," + "\"streamType\": \"LIVE\",\"contentType\": \"text/plain\" } }", + (int)(bg[0] * 255.0 + 0.5), (int)(bg[1] * 255.0 + 0.5), (int)(bg[2] * 255.0 + 0.5), + x, y, w, h); + + mes.source_id = "sender-0"; + mes.destination_id = p->transportId; + mes.namespace = media_chan; + mes.binary = 0; + mes.data = (ORD8 *)mesbuf; +#ifdef CHECK_JSON + check_json((char *)mes.data); +#endif + if ((merr = p->messv->send(p->messv, &mes)) != ccmessv_OK) { + DBG((dbgo,"mes->send LOAD failed with '%s'\n",ccmessv_emes(merr))) + free(mesbuf); + rv = 1; + goto retry; /* Failed */ + } + free(mesbuf); + +#else /* !NEVER */ + /* Send base64 PNG image & background color definition in multiple packets */ + } else if (iibuf != NULL) { + char *mesbuf, *cp; + size_t maxlen, meslen; + size_t enclen, senclen = 0; + int dlen; /* Encoded length to send */ + + if ((mesbuf = malloc(61 * 1024)) == NULL) { + DBG((dbgo,"mes->send malloc failed\n")) + return 1; + } + + dchan = 1; + + enclen = EBASE64LEN(ilen); /* Encoded length of whole image */ + maxlen = DBASE64LEN(60 * 1024); /* Maximum image bytes to send per message */ + meslen = iilen; + if (meslen > maxlen) + meslen = maxlen; + + cp = mesbuf; + cp += sprintf(cp, "{ "); + cp += sprintf(cp, "\"requestId\": %d,",reqid); + cp += sprintf(cp, "\"foreground\": { "); + cp += sprintf(cp, "\"contentType\": \"image/png\","); + cp += sprintf(cp, "\"encoding\": \"base64\","); + cp += sprintf(cp, "\"data\": \""); + ebase64(&dlen, cp, iibuf, meslen); + DBG((dbgo,"part base64 encoded PNG = %d bytes\n",dlen)) + iibuf += meslen; + iilen -= meslen; + senclen += dlen; + cp += dlen; + cp += sprintf(cp, "\","); + cp += sprintf(cp, "\"size\": %lu",(unsigned long)EBASE64LEN(ilen)); + cp += sprintf(cp, " },"); + + cp += sprintf(cp, "\"background\": \"rgb(%d, %d, %d)\",", + (int)(bg[0] * 255.0 + 0.5), + (int)(bg[1] * 255.0 + 0.5), + (int)(bg[2] * 255.0 + 0.5)); + + cp += sprintf(cp, "\"offset\": [%f, %f],",x,y); + cp += sprintf(cp, "\"scale\": [%f, %f]",w,h); + cp += sprintf(cp, " }"); + + mes.source_id = "sender-0"; + mes.destination_id = p->transportId; + mes.namespace = direct_chan; + mes.binary = 0; + mes.data = (ORD8 *)mesbuf; +#ifdef CHECK_JSON + check_json((char *)mes.data); +#endif + + if ((merr = p->messv->send(p->messv, &mes)) != ccmessv_OK) { + DBG((dbgo,"mes->send LOAD failed with '%s'\n",ccmessv_emes(merr))) + free(mesbuf); + rv = 1; + goto retry; /* Failed */ + } + + /* If we didn't send the whole image in one go */ + while (iilen > 0) { + + /* Send the next chunk */ + meslen = iilen; + if (meslen > maxlen) + meslen = maxlen; + + DBG((dbgo,"Sending %d bytes of %d remaining in image\n",meslen,iilen)) + + lastid = reqid = ++p->requestId; + + cp = mesbuf; + cp += sprintf(cp, "{ "); + cp += sprintf(cp, "\"requestId\": %d,",reqid); + cp += sprintf(cp, "\"foreground\": \""); + ebase64(&dlen, cp, iibuf, meslen); + DBG((dbgo,"part base64 encoded PNG = %d bytes\n",dlen)) + iibuf += meslen; + iilen -= meslen; + senclen += dlen; + + + cp += dlen; + cp += sprintf(cp, "\" }"); + + mes.source_id = "sender-0"; + mes.destination_id = p->transportId; + mes.namespace = direct_chan; + mes.binary = 0; + mes.data = (ORD8 *)mesbuf; +#ifdef CHECK_JSON + check_json((char *)mes.data); +#endif + if ((merr = p->messv->send(p->messv, &mes)) != ccmessv_OK) { + DBG((dbgo,"mes->send LOAD failed with '%s'\n",ccmessv_emes(merr))) + free(mesbuf); + rv = 1; + goto retry; /* Failed */ + } + + if ((lastid - firstid) > 0) { + + /* Wait for an ACK, to make sure the channel doesn't get choked up */ + if (get_a_reply_id(p, direct_chan, firstid, &mes, 10000) != 0) { + DBG((dbgo,"load_ccast: failed to get reply\n")) + rv = 2; + goto retry; /* Failed */ + } + if (mes.mtype == NULL) { + DBG((dbgo,"load_ccast: mtype == NULL\n")) + rv = 2; + goto retry; /* Failed */ + + } else if (dchan && strcmp(mes.mtype, "ACK") == 0) { + DBG((dbgo,"load_ccast: got ACK\n")) + + } else if (dchan && strcmp(mes.mtype, "NACK") == 0) { + /* Failed. Get error status */ + yajl_val errors; + if ((errors = yajl_tree_get_first(mes.tnode, "errors", yajl_t_array)) != NULL) { + DBG((dbgo,"NACK returned errors:\n")) + if (YAJL_IS_ARRAY(errors)) { + for (i = 0; i < errors->u.array.len; i++) { + yajl_val error = errors->u.array.values[i]; + DBG((dbgo,"%s\n",error->u.string)) + } + + } else { + DBG((dbgo,"NACK errors is not an array!\n")) + } + } else { + DBG((dbgo,"NACK failed to return errors\n")) + } + rv = 2; + goto retry; /* Failed */ + + } else { + rv = 3; + DBG((dbgo,"load_ccast: got mtype '%s'\n",mes.mtype)) + goto retry; /* Failed */ + } + ccmes_empty(&mes); + firstid++; + } + }; + free(mesbuf); + + /* This would be bad... */ + if (iilen == 0 && senclen != enclen) + fprintf(stderr,"ccast load finished but senclen %lu != enclen %lu\n", + (unsigned long)senclen,(unsigned long)enclen); +#endif /* !NEVER */ + + } else { + DBG((dbgo,"mes->send not given URL or png data\n")) + return 1; + } + } + + /* Wait for a reply to each load message */ + for (reqid = firstid; reqid <= lastid; reqid++) { + + if (get_a_reply_id(p, dchan ? direct_chan : media_chan, reqid, &mes, 5000) != 0) { + DBG((dbgo,"load_ccast: failed to get reply\n")) + rv = 2; + goto retry; /* Failed */ + } + /* Reply could be: + MEDIA_STATUS + INVALID_PLAYER_STATE, + LOAD_FAILED, + LOAD_CANCELLED + + For net.hoech.cast.patterngenerator + ACK, + NACK + */ + if (mes.mtype == NULL) { + DBG((dbgo,"load_ccast: mtype == NULL\n")) + rv = 2; + goto retry; /* Failed */ + + } else if (dchan && strcmp(mes.mtype, "ACK") == 0) { + DBG((dbgo,"load_ccast: got ACK\n")) + + } else if (dchan && strcmp(mes.mtype, "NACK") == 0) { + /* Failed. Get error status */ + yajl_val errors; + if ((errors = yajl_tree_get_first(mes.tnode, "errors", yajl_t_array)) != NULL) { + DBG((dbgo,"NACK returned errors:\n")) + if (YAJL_IS_ARRAY(errors)) { + for (i = 0; i < errors->u.array.len; i++) { + yajl_val error = errors->u.array.values[i]; + DBG((dbgo,"%s\n",error->u.string)) + } + + } else { + DBG((dbgo,"NACK errors is not an array!\n")) + } + } else { + DBG((dbgo,"NACK failed to return errors\n")) + } + rv = 2; + goto retry; /* Failed */ + + } else if (strcmp(mes.mtype, "MEDIA_STATUS") == 0) { + yajl_val node, i; + if ((i = yajl_tree_get_first(mes.tnode, "mediaSessionId", yajl_t_number)) != NULL) { + p->mediaSessionId = YAJL_GET_INTEGER(i); + DBG((dbgo,"MEDIA_STATUS returned mediaSessionId %d\n",p->mediaSessionId)) + } else { + DBG((dbgo,"MEDIA_STATUS failed to return mediaSessionId\n")) + } + /* Suceeded */ + + } else { + rv = 3; + DBG((dbgo,"load_ccast: got mtype '%s'\n",mes.mtype)) + goto retry; /* Failed */ + } + ccmes_empty(&mes); + } + /* If we got here, we succeeded */ + break; + + retry:; + +// if (!p->loaded1 || (i+1) >= maxtries) + if ((i+1) >= maxtries) { + return rv; /* Too many tries - give up */ + } + + DBG((dbgo,"load_ccast: failed on try %d/%d - re-connecting to chrome cast\n",i+1,maxtries)) + shutdown_ccast(p); /* Tear connection down */ + if (start_ccast(p)) { /* Set it up again */ + DBG((dbgo,"load_ccast: re-connecting failed\n")) + return 1; + } + /* And retry */ + rv = 0; + } /* Retry loop */ + + /* Success */ + p->loaded1 = 1; /* Loaded at least once */ + + /* Currently there is a 1.5 second fade up delay imposed by */ + /* the base ChromeCast software or default receiver. */ + if (p->load_delay > 0.0) + msec_sleep(p->load_delay); + + return rv; +} + +/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */ + +/* Static list so that all open ChromCast connections can be closed on a SIGKILL */ +static ccast *ccast_list = NULL; + +/* Clean up any open ChromeCast connections */ +static void ccast_cleanup() { + ccast *pp, *np; + + for (pp = ccast_list; pp != NULL; pp = np) { + np = pp->next; + a1logd(g_log, 2, "ccast_cleanup: closing 0x%x\n",pp); + pp->shutdown(pp); + } +} + +#ifdef NT +static void (__cdecl *ccast_int)(int sig) = SIG_DFL; +static void (__cdecl *ccast_term)(int sig) = SIG_DFL; +#endif +#ifdef UNIX +static void (*ccast_hup)(int sig) = SIG_DFL; +static void (*ccast_int)(int sig) = SIG_DFL; +static void (*ccast_term)(int sig) = SIG_DFL; +#endif + +/* On something killing our process, deal with USB cleanup */ +static void ccast_sighandler(int arg) { + static amutex_static(lock); + + a1logd(g_log, 2, "ccast_sighandler: invoked with arg = %d\n",arg); + + /* Make sure we don't re-enter */ + if (amutex_trylock(lock)) { + return; + } + + ccast_cleanup(); + a1logd(g_log, 2, "ccast_sighandler: done ccast_sighandler()\n"); + + /* Call the existing handlers */ +#ifdef UNIX + if (arg == SIGHUP && ccast_hup != SIG_DFL && ccast_hup != SIG_IGN) + ccast_hup(arg); +#endif /* UNIX */ + if (arg == SIGINT && ccast_int != SIG_DFL && ccast_int != SIG_IGN) + ccast_int(arg); + if (arg == SIGTERM && ccast_term != SIG_DFL && ccast_term != SIG_IGN) + ccast_term(arg); + + a1logd(g_log, 2, "ccast_sighandler: calling exit()\n"); + + amutex_unlock(lock); + exit(0); +} + + +/* Install the cleanup signal handlers */ +void ccast_install_signal_handlers(ccast *p) { + + if (ccast_list == NULL) { + a1logd(g_log, 2, "ccast_install_signal_handlers: called\n"); +#if defined(UNIX) + ccast_hup = signal(SIGHUP, ccast_sighandler); +#endif /* UNIX */ + ccast_int = signal(SIGINT, ccast_sighandler); + ccast_term = signal(SIGTERM, ccast_sighandler); + } + + /* Add it to our static list, to allow automatic cleanup on signal */ + p->next = ccast_list; + ccast_list = p; + a1logd(g_log, 6, "ccast_install_signal_handlers: done\n"); +} + +/* Delete an ccast from our static signal cleanup list */ +void ccast_delete_from_cleanup_list(ccast *p) { + + /* Find it and delete it from our static cleanup list */ + if (ccast_list != NULL) { + a1logd(g_log, 6, "ccast_install_signal_handlers: called\n"); + if (ccast_list == p) { + ccast_list = p->next; + if (ccast_list == NULL) { +#if defined(UNIX) + signal(SIGHUP, ccast_hup); +#endif /* UNIX */ + signal(SIGINT, ccast_int); + signal(SIGTERM, ccast_term); + } + } else { + ccast *pp; + for (pp = ccast_list; pp != NULL; pp = pp->next) { + if (pp->next == p) { + pp->next = p->next; + break; + } + } + } + a1logd(g_log, 6, "ccast_install_signal_handlers: done\n"); + } +} + +/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */ +/* Quantization model of ChromCast and TV */ +/* ctx is a placeholder, and can be NULL */ + +#define QUANT(xx, qq) (floor((xx) * (qq) + 0.5)/(qq)) + +/* Input & output RGB 0.0 - 1.0 levels */ +void ccastQuant(void *ctx, double out[3], double in[3]) { + double r = in[0], g = in[1], b = in[2]; + double Y, Cb, Cr; + +// printf("ccastQuant: %f %f %f",r,g,b); + + /* Scale RGB to 8 bit then quantize, since that's the limit of the frame buffer */ + r = floor(r * 255.0 + 0.5); + g = floor(g * 255.0 + 0.5); + b = floor(b * 255.0 + 0.5); + + /* ChromCast hardware seems to use 9 bit coeficients */ + Y = r * QUANT((235.0 - 16.0) * 0.2126/255.0, 512.0) + + g * QUANT((235.0 - 16.0) * 0.7152/255.0, 512.0) + + b * QUANT((235.0 - 16.0) * 0.0722/255.0, 512.0); + + Cb = r * -QUANT((240.0 - 16.0) * 0.2126 /(255.0 * 1.8556), 512.0) + + g * -QUANT((240.0 - 16.0) * 0.7152 /(255.0 * 1.8556), 512.0) + + b * QUANT((240.0 - 16.0) * (1.0 - 0.0722)/(255.0 * 1.8556), 512.0); + + Cr = r * QUANT((240.0 - 16.0) * (1.0 - 0.2126)/(255.0 * 1.5748), 512.0) + + g * -QUANT((240.0 - 16.0) * 0.7152 /(255.0 * 1.5748), 512.0) + + b * -QUANT((240.0 - 16.0) * 0.0722 /(255.0 * 1.5748), 512.0); + + /* (Don't bother with offsets, since they don't affect quantization) */ + + /* Quantize YCbCr to 8 bit, since that's what ChromCast HDMI delivers */ + Y = floor(Y + 0.5); + Cb = floor(Cb + 0.5); + Cr = floor(Cr + 0.5); + + /* We simply assume that the TV decoding is perfect, */ + /* but is limited to 8 bit full range RGB output */ + r = Y * 255.0/(235.0 - 16.0) + + Cr * (1.574800000 * 255.0)/(240.0 - 16.0); + + g = Y * 255.0/(235.0 - 16.0) + + Cb * (-0.187324273 * 255.0)/(240.0 - 16.0) + + Cr * (-0.468124273 * 255.0)/(240.0 - 16.0); + + b = Y * 255.0/(235.0 - 16.0) + + Cb * (1.855600000 * 255.0)/(240.0 - 16.0); + + /* Clip */ + if (r > 255.0) + r = 255.0; + else if (r < 0.0) + r = 0.0; + if (g > 255.0) + g = 255.0; + else if (g < 0.0) + g = 0.0; + if (b > 255.0) + b = 255.0; + else if (b < 0.0) + b = 0.0; + + /* We assume that the TV is 8 bit, so */ + /* quantize to 8 bits and return to 0.0 - 1.0 range. */ + r = floor(r + 0.5)/255.0; + g = floor(g + 0.5)/255.0; + b = floor(b + 0.5)/255.0; + + out[0] = r; + out[1] = g; + out[2] = b; + +// printf(" -> %f %f %f\n",r,g,b); +} + +/* Input RGB 8 bit 0 - 255 levels, output YCbCr 8 bit 16 - 235 levels */ +/* Non-clipping, non-8 bit quantizing */ +void ccast2YCbCr_nq(void *ctx, double out[3], double in[3]) { + double r = in[0], g = in[1], b = in[2]; + double Y, Cb, Cr; + +// printf("ccast2YCbCr_nq: %f %f %f",r,g,b); + + /* ChromCast hardware seems to use 9 bit coeficients */ + Y = r * QUANT((235.0 - 16.0) * 0.2126/255.0, 512.0) + + g * QUANT((235.0 - 16.0) * 0.7152/255.0, 512.0) + + b * QUANT((235.0 - 16.0) * 0.0722/255.0, 512.0) + + 16.0; + + Cb = r * -QUANT((240.0 - 16.0) * 0.2126 /(255.0 * 1.8556), 512.0) + + g * -QUANT((240.0 - 16.0) * 0.7152 /(255.0 * 1.8556), 512.0) + + b * QUANT((240.0 - 16.0) * (1.0 - 0.0722)/(255.0 * 1.8556), 512.0) + + 16.0; + + Cr = r * QUANT((240.0 - 16.0) * (1.0 - 0.2126)/(255.0 * 1.5748), 512.0) + + g * -QUANT((240.0 - 16.0) * 0.7152 /(255.0 * 1.5748), 512.0) + + b * -QUANT((240.0 - 16.0) * 0.0722 /(255.0 * 1.5748), 512.0) + + 16.0; + + out[0] = Y; + out[1] = Cb; + out[2] = Cr; + +// printf(" -> %f %f %f\n",out[0],out[1],out[2]); +} + +/* Input RGB 8 bit 0 - 255 levels, output YCbCr 8 bit 16 - 235 levels */ +void ccast2YCbCr(void *ctx, double out[3], double in[3]) { + double rgb[3]; + +// printf("ccast2YCbCr: %f %f %f",r,g,b); + + /* Quantize RGB to 8 bit, since that's the limit of the frame buffer */ + rgb[0] = floor(in[0] + 0.5); + rgb[1] = floor(in[1] + 0.5); + rgb[2] = floor(in[2] + 0.5); + + ccast2YCbCr_nq(ctx, out, rgb); + + /* Quantize YCbCr to 8 bit, since that's what ChromCast HDMI delivers */ + out[0] = floor(out[0] + 0.5); + out[1] = floor(out[1] + 0.5); + out[2] = floor(out[2] + 0.5); +// printf(" -> %f %f %f\n",out[0],out[1],out[2]); +} + +/* Input YCbCr 8 bit 16 - 235 levels output RGB 8 bit 0 - 255 levels. */ +/* Non-clipping, non-8 bit quantizing */ +void YCbCr2ccast_nq(void *ctx, double out[3], double in[3]) { + double Y = in[0], Cb = in[1], Cr = in[2]; + double r, g, b; + +// printf("YCbCr2ccast_nq: %f %f %f",Y,Cb,Cr); + + Y -= 16.0; + Cb -= 16.0; + Cr -= 16.0; + + /* We simply assume that the TV decoding is perfect, */ + /* but is limited to 8 bit full range RGB output */ + r = Y * 255.0/(235.0 - 16.0) + + Cr * (1.574800000 * 255.0)/(240.0 - 16.0); + + g = Y * 255.0/(235.0 - 16.0) + + Cb * (-0.187324273 * 255.0)/(240.0 - 16.0) + + Cr * (-0.468124273 * 255.0)/(240.0 - 16.0); + + b = Y * 255.0/(235.0 - 16.0) + + Cb * (1.855600000 * 255.0)/(240.0 - 16.0); + + out[0] = r; + out[1] = g; + out[2] = b; + +// printf(" -> %f %f %f\n",out[0],out[1],out[2]); +} + +/* Input YCbCr 8 bit 16 - 235 levels output RGB 8 bit 0 - 255 levels. */ +/* Quantize input, and quantize and clip output. */ +/* Return nz if the output was clipped */ +int YCbCr2ccast(void *ctx, double out[3], double in[3]) { + double YCbCr[3]; + int k, rv = 0; + +// printf("YCbCr2ccast: %f %f %f",Y,Cb,Cr); + + /* Quantize YCbCr to 8 bit, since that's what ChromCast HDMI delivers */ + YCbCr[0] = floor(in[0] + 0.5); + YCbCr[1] = floor(in[1] + 0.5); + YCbCr[2] = floor(in[2] + 0.5); + + YCbCr2ccast_nq(ctx, out, YCbCr); + + /* Quantize and clip to RGB, since we assume the TV does this */ + for (k = 0; k < 3; k++) { + out[k] = floor(out[k] + 0.5); + + if (out[k] > 255.0) { + out[k] = 255.0; + rv = 1; + } else if (out[k] < 0.0) { + out[k] = 0.0; + rv = 1; + } + } + +// printf(" -> %f %f %f, clip %d\n",out[0],out[1],out[2],rv); + + return rv; +} + diff --git a/ccast/ccast.h b/ccast/ccast.h new file mode 100644 index 0000000..7014679 --- /dev/null +++ b/ccast/ccast.h @@ -0,0 +1,108 @@ +#ifndef CCAST_H +#define CCAST_H + +/* + * Argyll Color Correction System + * ChromCast public API support + * + * Author: Graeme W. Gill + * Date: 8/9/2014 + * + * Copyright 2014 Graeme W. Gill + * All rights reserved. + * + * This material is licenced under the GNU AFFERO GENERAL PUBLIC LICENSE Version 3 :- + * see the License2.txt file for licencing details. + * + */ + +/* + * This class provides simple access to the Google ChromeCast + * for the purposes of generating Video Test patches. + */ + +#include "ccmdns.h" /* Function to get a list of ChromeCasts */ + +/* A ChromCast instance */ +struct _ccast { + ccast_id id; /* Id of CromeCast being accessed */ + struct _ccmessv *messv; + int requestId; + + char *sessionId; + char *transportId; + + /* Delete the ccast */ + void (*del)(struct _ccast *p); + + /* Load a URL */ + int (*load)(struct _ccast *p, char *url, unsigned char *data, size_t dlen, + double bg[3], double x, double y, double w, double h); + + /* Shut it down */ + void (*shutdown)(struct _ccast *p); + + /* Get the extra load delay */ + int (*get_load_delay)(struct _ccast *p); + + /* Return nz if we can send PNG directly as base64 + bg RGB, */ + /* else have to setup webserver and send URL */ + int (*get_direct_send)(struct _ccast *p); + + /* Thread context */ + athread *rmesth; /* Receive message thread */ + struct _ccmes *rmes; /* Linked list of received messages */ + amutex rlock; /* Receive list lock protecting rmes */ + acond rcond; /* Condition for client to wait on */ + int w_rq; /* NZ if client is waiting on message */ + char *w_rqns; /* Message namespac client is waiting for (if !NULL) */ + int w_rqid; /* Message rqid client is waiting for (0 = any) */ + volatile int stop; /* Thread stop flag */ + volatile int stopped; /* Thread reply flag */ + + /* Other */ + int mediaSessionId; + int loaded1; /* Set to nz if at least one load succeeded */ + int forcedef; /* Force using default reciever rather than patgen */ + int patgenrcv; /* nz if pattern generator receiver, else default receiver */ + int load_delay; /* Delay needed after succesful LOAD */ + + struct _ccast *next; /* Next in static list for signal cleanup */ +}; typedef struct _ccast ccast; + +/* Create a new ChromeCast */ +/* Return NULL on error */ +/* nz forcedef to force using default reciever & web server rather than pattern generator app. */ +/* Can also set environment variabl "ARGYLL_CCAST_DEFAULT_RECEIVER" to do this. */ +ccast *new_ccast(ccast_id *id, int forcedef); + +/* Quantization model of ChromCast and TV */ +/* ctx is a placeholder, and can be NULL */ + +/* Input & output RGB 0.0 - 1.0 levels */ +void ccastQuant(void *ctx, double out[3], double in[3]); + +/* Input RGB 8 bit 0 - 255 levels, output YCbCr 8 bit 16 - 235 levels */ +void ccast2YCbCr(void *ctx, double out[3], double in[3]); + +/* Input RGB 8 bit 0 - 255 levels, output YCbCr 8 bit 16 - 235 levels */ +/* non-quanized or clipped */ +void ccast2YCbCr_nq(void *ctx, double out[3], double in[3]); + +/* Input YCbCr 8 bit 16 - 235 levels output RGB 8 bit 0 - 255 levels. */ +/* Return nz if the output was clipped */ +int YCbCr2ccast(void *ctx, double out[3], double in[3]); + +/* Input YCbCr 8 bit 16 - 235 levels output RGB 8 bit 0 - 255 levels. */ +/* non-quanized or clipped */ +void YCbCr2ccast_nq(void *ctx, double out[3], double in[3]); + +#define CCDITHSIZE 4 + +/* Compute pattern [width][height] */ +/* return the delta to the target */ +double get_ccast_dith(double ipat[CCDITHSIZE][CCDITHSIZE][3], double val[3]); + +#define CCAST_H +#endif /* CCAST_H */ + diff --git a/ccast/ccmdns.c b/ccast/ccmdns.c new file mode 100644 index 0000000..8dd889e --- /dev/null +++ b/ccast/ccmdns.c @@ -0,0 +1,1096 @@ + +/* + * Argyll Color Correction System + * ChromCast support + * + * Author: Graeme W. Gill + * Date: 28/8/2014 + * + * Copyright 2014 Graeme W. Gill + * All rights reserved. + * + * This material is licenced under the GNU AFFERO GENERAL PUBLIC LICENSE Version 3 :- + * see the License2.txt file for licencing details. + * + */ + +/* + * This class provides simple access to the Google ChromeCast + * for the purposes of generating Video Test patches. + */ + +/* + TTBD: Ideally we should use the system mDNS resource if it is available, + and fall back to our mDNS code if not. + + ie. Linux may have nothing, be using avahi-daemon, + possibly Zeroconf (== Bonjour ?) + Avahi has Bonjour compatibility library ?? + + ie. OS X is using mDNSRespo (Bonjour ?) + + MSWin may have Bonjour installed on it ? + Has dns-sd command - what's that using (SSDP/UPnP ?) + + From + + Bonjour for Windows allows any software using the standard name resolution APIs + to resolve mDNS names; it does so by registering a DLL (mdnsnsp.dll) as a + namespace provider using WSCInstallNameSpace. + + The corresponding code is included in the mDNSResponder source (in particular, + look at the mdnsNSP and NSPTool components). + + To test on Linux: + + To check what's listening: sudo netstat -anp | grep 5353 + + /etc/init.d/avahi-daemon stop + /etc/init.d/avahi-daemon start + + To test on OS X: + + To check what's listening: sudo netstat -an | grep 5353 + + launchctl unload -w /System/Library/LaunchDaemons/com.apple.mDNSResponder.plist + launchctl load -w /System/Library/LaunchDaemons/com.apple.mDNSResponder.plist + */ + + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include "copyright.h" +#include "aconfig.h" +#include +#ifndef SALONEINSTLIB +#include "numlib.h" +#else +#include "numsup.h" +#endif +#include "ccmdns.h" + +#undef DEBUG + +#if defined(NT) // Windows specific +# if _WIN32_WINNT < 0x0400 +# undef _WIN32_WINNT +# define _WIN32_WINNT 0x0400 // To make it link in VS2005 +# endif +# define WIN32_LEAN_AND_MEAN +# include +# include +# include + +# include +# include +# include + +# define ERRNO GetLastError() +# define UDP_SOCKET_TIMEOUT WSAETIMEDOUT + +#else /* !NT = Unix, OS X */ + +# include +# include +# include +# include +# include +# include +# include +# include +# include +# include +# include + +# include +# include +# include + +typedef int SOCKET; +# define ERRNO errno + +# define INVALID_SOCKET -1 +# define SOCKET_ERROR -1 +# define UDP_SOCKET_TIMEOUT EAGAIN + +#define closesocket(xxx) close(xxx); + +#endif + +#ifdef DEBUG +# define dbgo stdout +# define DBG(xxx) fprintf xxx ; +void cc_dump_bytes(FILE *fp, char *pfx, unsigned char *buf, int len); +#else +# define DBG(xxx) ; +#endif /* DEBUG */ + +/* ================================================================ */ + +/* mDNS details */ +#define DESTINATION_MCAST "224.0.0.251" +#define DESTINATION_MCASTV6 "FF02::FB" +#define SOURCE_PORT 5353 +#define DESTINATION_PORT 5353 + +#define BUFSIZE 1024 + +/* Various DNS defines */ +#define DNS_CLASS_IN 0x0001 + +// Used by ChromeCast +#define DNS_TYPE_PTR 12 /* Domain name pointer */ +#define DNS_TYPE_TXT 16 /* Text String */ +#define DNS_TYPE_SRV 33 /* Server selection (SRV) record */ +#define DNS_TYPE_A 1 /* Host address (A) record */ +#define DNS_TYPE_AAAA 28 /* IPv6 address ??? */ +#define DNS_TYPE_NSEC 47 /* DNS Next Secure Name */ + + +#ifdef NEVER +/* Print out a V6 address in zero compresed form */ +/* (It would be nice to add zero compression) */ +static char *print_IPV6_Address(ORD8 *buf) { + static char sbuf[40], *p = sbuf; + int i; + for (i = 0; i < 8; i++) { + p += sprintf(p, "%x", buf[i * 2 + 1] * 256 + buf[i * 2 + 0]); + if (i < 7) + *p++ = ':'; + } + *p++ = '\000'; + return sbuf; +} +#endif + +/* Write a DNS string to a buffer. */ +/* return the offset of the next byte after the string */ +static int write_string(ORD8 *buf, int off, char *s) { + int len = strlen(s); + if (len >= 0xc0) + len = 0xc0; // Hmm. + buf[off] = len; + off++; + memcpy(buf + off, s, len); + off += len; + return off; +} + +/* Return NZ on error */ +static int init_mDNS() { + +#ifdef NT + WSADATA data; + if (WSAStartup(MAKEWORD(2,2), &data)) { + DBG((dbgo,"WSAStartup failed\n")) + return 1; + } +#endif + + return 0; +} + +/* Setup the send socket */ +/* Return nz on error */ +static int init_send_mDNS(SOCKET *psock) { + int nRet, nOptVal; + int off; + SOCKET sock; + struct sockaddr_in stSourceAddr; + + DBG((dbgo,"init_send_mDNS() called\n")) + + /* get a datagram (UDP) socket */ + sock = socket(PF_INET, SOCK_DGRAM, 0); + if (sock == INVALID_SOCKET) { + DBG((dbgo,"opening UDP socked failed with %d\n",ERRNO)) + return 1; + } + + /*----------------------- to send --------------------------- */ + + /* Theoretically, you do not need any special preparation to + * send to a multicast address. However, you may want a few + * things to overcome the limits of the default behavior + */ + + // If we're doing a one-shot, we shouldn't transmit from port 5353, */ + // but ChromCast won't see the packet if we don't. */ + + /* We cant send from port 5353 if someone else is using it, */ + /* so set the SO_REUSEADDR option (which is enough for MSWin), */ + /* and SO_REUSEPORT for OS X and Linux */ + { + int on = 1; + if (setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, (const char *)&on, sizeof(on))) { + DBG((dbgo,"setsockopt(SO_REUSEADDR) failed with %d\n",ERRNO)) + closesocket(sock); + return 1; + } + + /* Need this to be able to open port on Unix like systems */ +#ifndef NT +# ifndef SO_REUSEPORT +# ifdef __APPLE__ +# define SO_REUSEPORT 0x0200 +# else /* Linux */ +# define SO_REUSEPORT 15 +# endif +# endif + if (setsockopt(sock, SOL_SOCKET, SO_REUSEPORT, (const char *)&on, sizeof(on))) { + DBG((dbgo,"setsockopt(SO_REUSEPORT) failed with %d\n",ERRNO)) + } +#endif + } + + /* init source address structure */ + stSourceAddr.sin_family = PF_INET; + stSourceAddr.sin_port = htons(SOURCE_PORT); + stSourceAddr.sin_addr.s_addr = INADDR_ANY; + + /* + * Calling bind() is not required, but some implementations need it + * before you can reference any multicast socket options + * and in this case we must be on port 5353 for ChromeCast to see the packet + */ + nRet = bind(sock, (struct sockaddr *)&stSourceAddr, + sizeof(struct sockaddr)); + if (nRet == SOCKET_ERROR) { + DBG((dbgo,"bind failed with %d\n",ERRNO)) + closesocket(sock); + return 1; + } + + /* disable loopback of multicast datagrams we send, since the + * default--according to Steve Deering--is to loopback all + * datagrams sent on any interface which is a member of the + * destination group address of that datagram. + */ + nOptVal = 0; + nRet = setsockopt (sock, IPPROTO_IP, IP_MULTICAST_LOOP, + (char *)&nOptVal, sizeof(int)); + if (nRet == SOCKET_ERROR) { + /* rather than notifying the user, we make note that this option + * failed. Some WinSocks don't support this option, and default + * with loopback disabled), so this failure is of no consequence. + * However, if we *do* get loop-backed data, we'll know why + */ + DBG((dbgo,"[disabling loopback failed with %d]\n",ERRNO)) + } + +#ifdef NEVER // We only want this to be local + /* increase the IP TTL from the default of one to 64, so our + * multicast datagrams can get off of the local network + */ + nOptVal = 64; + nRet = setsockopt(sock, IPPROTO_IP, IP_MULTICAST_TTL, + (char *)&nOptVal, sizeof(int)); + if (nRet == SOCKET_ERROR) { + DBG((dbgo,"increasing TTL failed with %d\n",ERRNO)) + closesocket(sock); + return 1; + } +#endif + + if (psock != NULL) + *psock = sock; + + DBG((dbgo,"init sending mDNS succeed\n",ERRNO)) + + return 0; +} + +/* Send an mDNS quesry */ +/* on some platforms if we try to transmit & recieve at the same time */ +/* Return nz on error */ +static int send_mDNS(SOCKET sock) { + int nRet; + int off; + ORD8 achOutBuf[BUFSIZE]; + struct sockaddr_in stDestAddr; + + DBG((dbgo,"send_mDNS() called\n")) + + /* Initialize the Destination Address structure and send */ + stDestAddr.sin_family = PF_INET; + stDestAddr.sin_addr.s_addr = inet_addr(DESTINATION_MCAST); + stDestAddr.sin_port = htons(DESTINATION_PORT); + + /* Setup the FQDN data packet to send */ + write_ORD16_be(0, achOutBuf + 0); /* ID */ + write_ORD16_be(0, achOutBuf + 2); /* Flags */ + write_ORD16_be(1, achOutBuf + 4); /* QDCOUNT - one question */ + write_ORD16_be(0, achOutBuf + 6); /* ANCOUNT */ + write_ORD16_be(0, achOutBuf + 8); /* NSCOUNT */ + write_ORD16_be(0, achOutBuf + 10); /* ARCOUNT */ + off = 12; + off = write_string(achOutBuf, off, "_googlecast"); + off = write_string(achOutBuf, off, "_tcp"); + off = write_string(achOutBuf, off, "local"); + write_ORD8(0, achOutBuf + off); /* null string */ + off += 1; + write_ORD16_be(0x000c, achOutBuf + off); /* QCOUNT */ + off += 2; + /* Set top bit to get a unicast response (not for ChromeCast though) */ + write_ORD16_be(0x0001, achOutBuf + off); /* QCLASS */ + off += 2; + + nRet = sendto(sock, (char *)achOutBuf, off, + 0, + (struct sockaddr *) &stDestAddr, + sizeof(struct sockaddr)); + if (nRet == SOCKET_ERROR) { + DBG((dbgo,"sending mDNS query failed with %d\n",ERRNO)) + return 1; + } + + DBG((dbgo,"sending mDNS query succeed\n",ERRNO)) + + return 0; +} + +static int parse_dns(char **name, char **ip, ORD8 *buf, int size); + +/* Free up what get_ccids returned */ +void free_ccids(ccast_id **ids) { + if (ids != NULL) { + int i; + + for (i = 0; ids[i] != NULL; i++) { + free(ids[i]->name); + free(ids[i]->ip); + free(ids[i]); + } + free(ids); + } +} + +/* Spend the given time waiting for replies. */ +/* (Note than on MSWin this will be a minimum of 500msec) */ +/* Add any ChromeCast replies to the list. */ +/* return nz on error */ +static int init_receive_mDNS(SOCKET *psock) { + int nRet; + int off, size; + struct sockaddr_in stSourceAddr; + struct ip_mreq stIpMreq; + SOCKET sock; + + DBG((dbgo,"init_receive_mDNS() called\n")) + + /* get a datagram (UDP) socket */ + sock = socket(PF_INET, SOCK_DGRAM, 0); + if (sock == INVALID_SOCKET) { + DBG((dbgo,"opening UDP socked failed with %d\n",ERRNO)) + return 1; + } + + /* We can't receive from port 5353 if someone else is using it, */ + /* so set the SO_REUSEADDR option (which is enough for MSWin), */ + /* and SO_REUSEPORT for OS X and Linux */ + { + int on = 1, off = 0; + if (setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, (const char *) &on, sizeof(on))) { + DBG((dbgo,"setsockopt(SO_REUSEADDR) failed with %d\n",ERRNO)) + closesocket(sock); + return 1; + } + + /* Need this to be able to open port on Unix like systems */ +#ifndef NT +# ifndef SO_REUSEPORT +# ifdef __APPLE__ +# define SO_REUSEPORT 0x0200 +# else /* Linux */ +# define SO_REUSEPORT 15 +# endif +# endif + if (setsockopt(sock, SOL_SOCKET, SO_REUSEPORT, (const char *)&on, sizeof(on))) { + DBG((dbgo,"setsockopt(SO_REUSEPORT) failed with %d\n",ERRNO)) + } +#endif + } + + /* init source address structure */ + stSourceAddr.sin_family = PF_INET; + stSourceAddr.sin_port = htons(SOURCE_PORT); + stSourceAddr.sin_addr.s_addr = INADDR_ANY; + + /* + * Calling bind() is not required, but some implementations need it + * before you can reference any multicast socket options + * and in this case we must be on port 5353. + */ + nRet = bind(sock, (struct sockaddr *)&stSourceAddr, + sizeof(struct sockaddr)); + if (nRet == SOCKET_ERROR) { + DBG((dbgo,"bind failed with %d\n",ERRNO)) + closesocket(sock); + return 1; + } + + /* join the multicast group we want to receive datagrams from */ + stIpMreq.imr_multiaddr.s_addr = inet_addr(DESTINATION_MCAST); /* group addr */ + stIpMreq.imr_interface.s_addr = INADDR_ANY; /* use default */ + nRet = setsockopt(sock, IPPROTO_IP, IP_ADD_MEMBERSHIP, + (char *)&stIpMreq, sizeof (struct ip_mreq)); + + if (nRet == SOCKET_ERROR) { + DBG((dbgo,"registering for read events failed with %d\n",ERRNO)) + closesocket(sock); + return 1; + } + + /* Make this timeout after 100 msec second */ +#ifdef NT + { + DWORD tv; + tv = 100; + if (setsockopt(sock, SOL_SOCKET, SO_RCVTIMEO, (const char*)&tv, sizeof(tv)) < 0) { + DBG((dbgo,"setsockopt timout failed with %d\n",ERRNO)) + closesocket(sock); + return 1; + } + } +#else + { + struct timeval tv; + tv.tv_sec = 0; + tv.tv_usec = 100 * 1000; + if (setsockopt(sock, SOL_SOCKET, SO_RCVTIMEO, (const char*)&tv, sizeof(tv)) < 0) { + DBG((dbgo,"setsockopt timout failed with %d\n",ERRNO)) + closesocket(sock); + return 1; + } + } +#endif + + if (psock != NULL) + *psock = sock; + + return 0; +} + +/* Spend the given time waiting for replies. */ +/* (Note than on MSWin this will be a minimum of 500msec) */ +/* Add any ChromeCast replies to the list. */ +/* return nz on error & free *ids */ +static int receive_mDNS(SOCKET sock, ccast_id ***ids, int emsec) { + int nids = 0; + unsigned int smsec; + unsigned int nSize; + int off, size; + ORD8 achInBuf[BUFSIZE]; + struct sockaddr_in stSourceAddr; + + /* Count the number of current id's */ + if (*ids != NULL) { + for (nids = 0; (*ids)[nids] != NULL; nids++) + ; + } + + DBG((dbgo,"receive_mDNS() called with %d ids\n",nids)) + + for (smsec = msec_time(), emsec += smsec;msec_time() <= emsec;) { + int i; + char *name, *ip; + struct sockaddr stSockAddr; + + /* Recv the available data */ + nSize = sizeof(struct sockaddr); + size = recvfrom(sock, (char *)achInBuf, + BUFSIZE, 0, (struct sockaddr *) &stSockAddr, &nSize); + if (size == SOCKET_ERROR) { + if (ERRNO == UDP_SOCKET_TIMEOUT) + continue; /* Timeout */ + DBG((dbgo,"recvfrom failed with %d\n",ERRNO)) + free_ccids(*ids); + *ids = NULL; + return 1; + } + DBG((dbgo,"Got mDNS message length %d bytes\n",size)) +#ifdef DEBUG + cc_dump_bytes(dbgo, " ", achInBuf, size); +#endif + + if (parse_dns(&name, &ip, achInBuf, size) != 0) { + DBG((dbgo,"Failed to parse the reply\n")) + } else { + DBG((dbgo,"Parsed reply OK\n")) + +//if (*pnids > 0) { +// name = strdup("Argyll1234"); +// ip = strdup("10.0.0.129"); +//} + /* If we found an entry */ + if (name != NULL && ip != NULL) { + DBG((dbgo,"Got a name '%s' & IP '%s'\n",name,ip)) + /* Check if it is a duplcate */ + for (i = 0; i < nids; i++) { + if (strcmp((*ids)[i]->name, name) == 0 + && strcmp((*ids)[i]->ip, ip) == 0) + break; /* yes */ + } + if (i < nids) { + DBG((dbgo,"Duplicate\n")) + free(name); + free(ip); + } else { + ccast_id **tids; + if ((tids = realloc(*ids, (nids + 2) * sizeof(ccast_id *))) == NULL + || (*ids = tids, (*ids)[nids] = malloc(sizeof(ccast_id)), (*ids)[nids]) == NULL) { + DBG((dbgo,"realloc/malloc fail\n")) + free(name); + free(ip); + free_ccids(*ids); + *ids = NULL; + return 1; + } else { + DBG((dbgo,"Adding entry\n")) + (*ids)[nids]->name = name; + (*ids)[nids]->ip = ip; + (*ids)[++nids] = NULL; /* End marker */ + } + } + } + } + } + + DBG((dbgo,"receive_mDNS() returning %d in list\n",nids)) + + return 0; +} + +/* ==================================================================== */ + +/* Get a list of Chromecasts. Return NULL on error */ +/* Last pointer in array is NULL */ +/* Takes 0.5 second to return */ +ccast_id **get_ccids() { + ccast_id **ids = NULL; + int i, j; + unsigned int smsec; + SOCKET ssock, rsock; + + if (init_mDNS()) { + DBG((dbgo,"init_mDNS() failed\n")) + return NULL; + } + + if (init_send_mDNS(&ssock)) { + DBG((dbgo,"init_send_mDNS() failed\n")) + return NULL; + } + + if (init_receive_mDNS(&rsock)) { + DBG((dbgo,"init_receive_mDNS() failed\n")) + closesocket(ssock); + return NULL; + } + + smsec = msec_time(); + + DBG((dbgo,"Sending mDNS query:\n")) + if (send_mDNS(ssock)) { + DBG((dbgo,"send_mDNS() #1 failed\n")) + closesocket(ssock); + closesocket(rsock); + return NULL; + } + + if (receive_mDNS(rsock, &ids, 100)) { + DBG((dbgo,"receive_mDNS() #1 failed\n")) + closesocket(ssock); + closesocket(rsock); + return NULL; + } + + if (ids == NULL && (msec_time() - smsec) < 200) { + + DBG((dbgo,"Sending another mDNS query:\n")) + if (send_mDNS(ssock)) { + DBG((dbgo,"send_mDNS() #2 failed\n")) + closesocket(ssock); + closesocket(rsock); + return NULL; + } + + if (receive_mDNS(rsock, &ids, 500)) { + DBG((dbgo,"receive_mDNS() #2 failed\n")) + closesocket(ssock); + closesocket(rsock); + return NULL; + } + } + + if (ids == NULL) { + + DBG((dbgo,"Sending a final mDNS query:\n")) + if (send_mDNS(ssock)) { + DBG((dbgo,"send_mDNS() #3 failed\n")) + closesocket(ssock); + closesocket(rsock); + return NULL; + } + + if (receive_mDNS(rsock, &ids, 500)) { + DBG((dbgo,"receive_mDNS() #3 failed\n")) + closesocket(ssock); + closesocket(rsock); + return NULL; + } + } + + closesocket(ssock); + closesocket(rsock); + + /* If no ChromCasts found, return an empty list */ + if (ids == NULL) { + if ((ids = calloc(sizeof(ccast_id *), 1)) == NULL) { + DBG((dbgo,"calloc fail\n")) + return NULL; + } + } + /* Sort the results so that it is stable */ + for (i = 0; ids[i] != NULL && ids[i+1] != NULL; i++) { + for (j = i+1; ids[j] != NULL; j++) { + if (strcmp(ids[i]->name, ids[j]->name) > 0) { + ccast_id *tmp; + tmp = ids[i]; + ids[i] = ids[j]; + ids[j] = tmp; + } + } + } + + return ids; +} + +void ccast_id_copy(ccast_id *dst, ccast_id *src) { + dst->name = strdup(src->name); + dst->ip = strdup(src->ip); +} + +ccast_id *ccast_id_clone(ccast_id *src) { + ccast_id *dst; + + if ((dst = calloc(sizeof(ccast_id), 1)) == NULL) + return dst; + + if (src->name != NULL && (dst->name = strdup(src->name)) == NULL) { + free(dst); + return NULL; + } + if (src->ip != NULL && (dst->ip = strdup(src->ip)) == NULL) { + free(dst->name); + free(dst); + return NULL; + } + return dst; +} + +void ccast_id_del(ccast_id *id) { + free(id->name); + free(id->ip); + free(id); +} + +/* ==================================================================== */ + +/* Read a string with a trailing '.' added. */ +/* Return the next offset or -1 and *rv = NULL on error */ +static int read_string_imp(char **rv, int *slen, ORD8 *buf, int off, int size, int rec) { + int len; + int d1 = 0; + +//printf("~1 read_string_imp called for off 0x%x rec %d\n",off,rec); + + if (rec > 10) /* Too many recursions */ + return -1; /* Error */ + + if (off >= size) + return -1; /* Error */ + + for (;;) { +//printf("~1 top of loop at off 0x%x\n",off); + len = buf[off]; + if (len == 0xc0) { /* Is it an offset marker */ + int poff; +//printf("~1 got pointer\n"); + if ((size - off) < 2) + return -1; + + poff = read_ORD16_be(buf + off); off += 2; + poff -= 0xc000; + + if (poff < 0 || poff >= size) + return -1; + + read_string_imp(rv, slen, buf, poff, size, rec+1); +//if (slen != NULL) printf("~1 after recurse, slen = %d, off = 0x%x\n",*slen,off); + + break; /* we're done */ + + } else { +//printf("~1 got string length %d\n",len); + off++; + if ((off + len) >= size) + return -1; + + if (len == 0) + break; /* we're done */ + + if (rv != NULL) { + memcpy(*rv, buf + off, len); +//(*rv)[len] = '\000'; printf("Copied string %p = '%s'\n",*rv,*rv); + + *rv += len; + } + off += len; + + if (slen != NULL) { + (*slen) += len; +//printf("~1 slen now = %d\n",*slen); + } + + } + d1 = 1; + + if (slen != NULL) + (*slen)++; + + if (rv != NULL) { + (*rv)[0] = '.'; + (*rv)++; + } + } +//if (slen != NULL) printf("~1 returning slen = %d\n",*slen); + return off; +} + +/* Read a string */ +/* Return the next offset or -1 and *rv = NULL on error */ +static int read_string(char **rv, ORD8 *buf, int off, int size) { + int len = 0, toff = off; + char *trv; + +//printf("~1 read_string called for off 0x%x\n",off); + + /* See how long it will be */ + if ((toff = read_string_imp(NULL, &len, buf, off, size, 0)) < 0) { +//printf("~1 read_string_imp length returned error\n"); + return toff; + } +//printf("~1 read_string_imp got length %d\n",len); + + if (len == 0) { +//printf("~1 Got zero length string\n"); + len++; /* Room for null string */ + } + if ((*rv = trv = malloc(len)) == NULL) { + return -1; + } +//printf("Malloced %p\n",*rv); + off = read_string_imp(&trv, NULL, buf, off, size, 0); + if (off >= 0) { + (*rv)[len-1] = '\000'; +//printf("~1 read string ok: %p = '%s'\n",*rv, *rv); + } +//else printf("~1 reading string failed\n"); + return off; +} + +/* Parse an mDNS query */ +/* Return updated off value or -1 on error */ +int parse_query(ORD8 *buf, int off, int size) { + char *sv; + int qtype, qclass; + + DBG((dbgo,"Parsing query at 0x%x:\n",off)) + if ((off = read_string(&sv, buf, off, size)) < 0) + return -1; + DBG((dbgo," Got string '%s'\n",sv)) + free(sv); + + if ((size - off) < 2) + return -1; + qtype = read_ORD16_be(buf + off); off += 2; + DBG((dbgo," QTYPE = 0x%04x\n",qtype)) + + if ((size - off) < 2) + return -1; + qclass = read_ORD16_be(buf + off); off += 2; + DBG((dbgo," QCLASS = 0x%04x\n",qtype)) + + return off; +} + +/* Parse an mDNS reply */ +/* Return updated off value or -1 on error */ +int parse_reply(char **pname, char **pip, ORD8 *buf, int off, int size) { + char *sv; + int rtype, rclass, rdlength; + unsigned int ttl; + + DBG((dbgo,"Parsing reply at 0x%x:\n",off)) + if ((off = read_string(&sv, buf, off, size)) < 0) + return -1; + + DBG((dbgo," Got string '%s'\n",sv)) + + if ((size - off) < 2) { + free(sv); + return -1; + } + rtype = read_ORD16_be(buf + off); off += 2; + DBG((dbgo," RTYPE = %d\n",rtype)) + + if ((size - off) < 2) { + free(sv); + return -1; + } + rclass = read_ORD16_be(buf + off); off += 2; + DBG((dbgo," RCLASS = 0x%04x\n",rclass)) + /* rclass top bit is cache flush bit */ + + if ((rclass & 0x7fff) != DNS_CLASS_IN) { + DBG((dbgo," response has RCLASS != 0x%04x\n",DNS_CLASS_IN)) + free(sv); + return -1; + } + + if ((size - off) < 4) + return -1; + ttl = read_ORD32_be(buf + off); off += 4; + DBG((dbgo," TTL = %u\n",ttl)) + + if ((size - off) < 2) + return -1; + rdlength = read_ORD16_be(buf + off); off += 2; + DBG((dbgo," RDLENGTH = %d\n",rdlength)) + + if ((off + rdlength) > size) { + DBG((dbgo," response RDLENGTH is longer than remaining buffer (%d)\n",size - off)) + free(sv); + return -1; + } + + /* Just decode the replies we need */ + if (rtype == DNS_TYPE_TXT) { /* Check it's a ChromeCast & get its name */ + char *cp; + if ((cp = strchr(sv, '.')) == NULL) { + free(sv); + return -1; + } + *cp = '\000'; + if (strcmp(cp+1, "_googlecast._tcp.local") != 0) { + DBG((dbgo,"Not a chromecast (got '%s')\n",cp+1)) + free(sv); + return -1; + } + + DBG((dbgo," Chromacast '%s'\n", sv)) + if ((*pname = strdup(sv)) == NULL) { + DBG((dbgo,"strdup failed\n")) + free(sv); + return -1; + } + } else if (rtype == DNS_TYPE_A) { + /* Should we check name matches ? */ + if ((*pip = malloc(3 * 4 + 3 + 1)) == NULL) { + DBG((dbgo,"malloc failed\n")) + free(*pname); + free(sv); + } + sprintf(*pip, "%d.%d.%d.%d", buf[off], buf[off+1], buf[off+2], buf[off+3]); + DBG((dbgo," V4 address = %s\n",*pip)) + + } else if (rtype == DNS_TYPE_AAAA) { /* The IPV6 address */ + /* Should we check name matches ? */ + if ((*pip = malloc(8 * 4 + 7 + 1)) == NULL) { + DBG((dbgo,"malloc failed\n")) + free(*pname); + free(sv); + } + sprintf(*pip, "%x:%x:%x:%x:%x:%x:%x:%x", + buf[off+0] * 245 + buf[off+1], + buf[off+2] * 245 + buf[off+3], + buf[off+4] * 245 + buf[off+5], + buf[off+6] * 245 + buf[off+7], + buf[off+8] * 245 + buf[off+9], + buf[off+10] * 245 + buf[off+11], + buf[off+12] * 245 + buf[off+13], + buf[off+14] * 245 + buf[off+15]); + DBG((dbgo," V6 address = %s\n",*pip)) + + } else { + DBG((dbgo," Skipping reply at 0x%x\n",off)) + } + off += rdlength; + free(sv); + + return off; +} + +/* Parse an mDNS reply into a ChromCast name & IP address */ +/* Allocate and return name and IP on finding ChromeCast reply, NULL otherwise */ +/* Return nz on failure */ +static int parse_dns(char **pname, char **pip, ORD8 *buf, int size) { + int i, off = 0; + int id, flags, qdcount, ancount, nscount, arcount; + + DBG((dbgo,"Parsing mDNS reply:\n")) + + *pname = NULL; + *pip = NULL; + + // Parse reply header + if ((size - off) < 2) return 1; + id = read_ORD16_be(buf + off); off += 2; + DBG((dbgo," ID = %d\n",id)) + + if ((size - off) < 2) return 1; + flags = read_ORD16_be(buf + off); off += 2; + DBG((dbgo," FLAGS = 0x%04x\n",flags)) + + if ((size - off) < 2) return 1; + qdcount = read_ORD16_be(buf + off); off += 2; + DBG((dbgo," QDCOUNT = %d\n",qdcount)) + + if ((size - off) < 2) return 1; + ancount = read_ORD16_be(buf + off); off += 2; + DBG((dbgo," ANCOUNT = %d\n",ancount)) + + if ((size - off) < 2) return 1; + nscount = read_ORD16_be(buf + off); off += 2; + DBG((dbgo," NSCOUNT = %d\n",nscount)) + + if ((size - off) < 2) return 1; + arcount = read_ORD16_be(buf + off); off += 2; + DBG((dbgo," ARCOUNT = %d\n",arcount)) + +//printf("~1 after strings, off = 0x%x\n",off); + + // Parse all the queries (QDCOUNT) + for (i = 0; i < qdcount; i++) { + if ((off = parse_query(buf, off, size)) < 0) { + DBG((dbgo," ### Parsing query failed ###\n")) + return 1; + } + } + + // Parse all the answers (ANCOUNT) + for (i = 0; i < ancount; i++) { + if ((off = parse_reply(pname, pip, buf, off, size)) < 0) { + DBG((dbgo," ### Parsing answer failed ###\n")) + return 1; + } + } + + // Parse all the NS records (NSCOUNT) + for (i = 0; i < nscount; i++) { + if ((off = parse_reply(pname, pip, buf, off, size)) < 0) { + DBG((dbgo," ### Parsing NS record failed ###\n")) + return 1; + } + } + + // Parse all the addition RR answers (ARCOUNT) + for (i = 0; i < arcount; i++) { + if ((off = parse_reply(pname, pip, buf, off, size)) < 0) { + DBG((dbgo," ### Parsing additional records failed ###\n")) + return 1; + } + } + return 0; +} + +/* + Analysis of ChromeCast reply + + 0000: 00 00 84 00 00 00 00 01 00 00 00 05 0b 5f 67 6f ............._go + + ID 0x0000 // ID 0 + Flags 0x8400 // Standard query response, No error + QDCOUNT 0x0000 // No queries + ANCOUNT 0x0001 // 1 Answer + NSCOUNT 0x0000 + ARCOUNT 0x0005 // 5 Additional records + + // Answer + 0b 5f 67 6f _go + 0010: 6f 67 6c 65 63 61 73 74 oglecast + + 0010: 04 5f 74 63 70 _tcp + + 0010: 05 6c 6f lo + 0020: 63 61 6c 00 cal. + + "_googlecast" "_tcp" "cal" "" //TLD + + 0020: 00 0c 00 01 00 00 11 94 00 11 0e 43 ...........C + + RTYPE 0x000c + RCLASS 0x0001 + TTL 0x00001194 + RDLENGTH 0x0011 + + ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + + 0000: 00 00 84 00 00 00 00 01 00 00 00 05 0b 5f 67 6f ............._go + 0010: 6f 67 6c 65 63 61 73 74 04 5f 74 63 70 05 6c 6f oglecast._tcp.lo + 0020: 63 61 6c 00 00 0c 00 01 00 00 11 94 00 11 0e 43 cal............C + 0030: 68 72 6f 6d 65 63 61 73 74 36 38 39 32 c0 0c c0 hromecast6892... + 0040: 2e 00 10 80 01 00 00 11 94 00 67 23 69 64 3d 63 ..........g#id=c + 0050: 31 37 61 65 38 38 32 65 37 65 31 38 37 35 64 30 17ae882e7e1875d0 + 0060: 31 33 65 64 32 31 32 63 31 36 62 62 64 34 30 05 13ed212c16bbd40. + 0070: 76 65 3d 30 32 0d 6d 64 3d 43 68 72 6f 6d 65 63 ve=02.md=Chromec + 0080: 61 73 74 12 69 63 3d 2f 73 65 74 75 70 2f 69 63 ast.ic=/setup/ic + 0090: 6f 6e 2e 70 6e 67 11 66 6e 3d 43 68 72 6f 6d 65 on.png.fn=Chrome + 00a0: 63 61 73 74 36 38 39 32 04 63 61 3d 35 04 73 74 cast6892.ca=5.st + 00b0: 3d 30 c0 2e 00 21 80 01 00 00 00 78 00 17 00 00 =0...!.....x.... + 00c0: 00 00 1f 49 0e 43 68 72 6f 6d 65 63 61 73 74 36 ...I.Chromecast6 + 00d0: 38 39 32 c0 1d c0 c4 00 01 80 01 00 00 00 78 00 892...........x. + 00e0: 04 0a 00 00 80 c0 2e 00 2f 80 01 00 00 11 94 00 ......../....... + 00f0: 09 c0 2e 00 05 00 00 80 00 40 c0 c4 00 2f 80 01 .........@.../.. + 0100: 00 00 00 78 00 05 c0 c4 00 01 40 ...x......@ + + +*/ + +/* ================================================================== */ +/* Debug */ + +// Print bytes as hex to stdout +void cc_dump_bytes(FILE *fp, char *pfx, unsigned char *buf, int len) { + int i, j, ii; + char oline[200] = { '\000' }, *bp = oline; + for (i = j = 0; i < len; i++) { + if ((i % 16) == 0) + bp += sprintf(bp,"%s%04x:",pfx,i); + bp += sprintf(bp," %02x",buf[i]); + if ((i+1) >= len || ((i+1) % 16) == 0) { + for (ii = i; ((ii+1) % 16) != 0; ii++) + bp += sprintf(bp," "); + bp += sprintf(bp," "); + for (; j <= i; j++) { + if (!(buf[j] & 0x80) && isprint(buf[j])) + bp += sprintf(bp,"%c",buf[j]); + else + bp += sprintf(bp,"."); + } + bp += sprintf(bp,"\n"); + fprintf(fp, "%s", oline); + bp = oline; + } + } +} + diff --git a/ccast/ccmdns.h b/ccast/ccmdns.h new file mode 100644 index 0000000..5144448 --- /dev/null +++ b/ccast/ccmdns.h @@ -0,0 +1,42 @@ +#ifndef CCMDNST_H + +/* + * Argyll Color Correction System + * ChromCast mDNS support + * + * Author: Graeme W. Gill + * Date: 28/8/2014 + * + * Copyright 2014 Graeme W. Gill + * All rights reserved. + * + * This material is licenced under the GNU AFFERO GENERAL PUBLIC LICENSE Version 3 :- + * see the License2.txt file for licencing details. + * + */ + +/* + * This class provides simple access to the Google ChromeCast + * for the purposes of generating Video Test patches. + */ + +/* A record of a Chromecast that may be accessed */ +struct _ccast_id { + char *name; /* Chromecast name */ + char *ip; /* IP address as string (ie. "10.0.0.128") */ +}; typedef struct _ccast_id ccast_id; + +/* Get a list of Chromecasts. Return NULL on error */ +/* Last pointer in array is NULL */ +/* Takes 0.5 second to return */ +ccast_id **get_ccids(void); + +/* Free up what get_ccids returned */ +void free_ccids(ccast_id **ids); + +void ccast_id_copy(ccast_id *dst, ccast_id *src); +ccast_id *ccast_id_clone(ccast_id *src); +void ccast_id_del(ccast_id *id); + +#define CCMDNST_H +#endif /* CCMDNST_H */ diff --git a/ccast/ccmes.c b/ccast/ccmes.c new file mode 100644 index 0000000..dbd5fd9 --- /dev/null +++ b/ccast/ccmes.c @@ -0,0 +1,334 @@ + + +/* + * Class to deal with protobuf messages + * to/from ChromCast. + * + * Author: Graeme W. Gill + * Date: 3/9/2014 + * + * Copyright 2014 Graeme W. Gill + * All rights reserved. + * + * This material is licenced under the GNU AFFERO GENERAL PUBLIC LICENSE Version 3 :- + * see the License2.txt file for licencing details. + * + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include "copyright.h" +#include "aconfig.h" +#include +#ifndef SALONEINSTLIB +#include "numlib.h" +#else +#include "numsup.h" +#endif + +#include "ssl.h" /* axTLS header */ +#include "yajl.h" +#include "conv.h" +#include "ccpacket.h" +#include "cast_channel.pb-c.h" +#include "ccmes.h" + +#undef LOWVERBTRACE /* Low verboseness message trace */ +#undef DEBUG /* Full message trace + debug */ + +/* ------------------------------------------------------------------- */ + +#ifdef DEBUG +# define DBG(xxx) fprintf xxx ; +#else +# define DBG(xxx) ; +#endif /* DEBUG */ +# define dbgo stdout + +/* Error message from error number */ +char *ccmessv_emes(ccmessv_err rv) { +#ifndef SERVER_ONLY + if (rv & 0x10000000) { + return ccmessv_emes(rv & 0x0fffffff); + } +#endif + + switch(rv) { + case ccmessv_OK: + return "ccmes: OK"; + case ccmessv_context: + return "ccmes: getting a ssl contextfailed"; + case ccmessv_malloc: + return "ccmes: malloc failed"; + case ccmessv_connect: + return "ccmes: connecting to host failed"; + case ccmessv_ssl: + return "ccmes: ssl connect to host failed"; + + case ccmessv_send: + return "ccmes: message failed to send"; + case ccmessv_recv: + return "ccmes: failed to receive"; + case ccmessv_unpack: + return "ccmes: failed to unpack"; + case ccmessv_timeout: + return "ccmes: i/o has timed out"; + case ccmessv_closed: + return "ccmes: connection has been closed"; + } + + return "Uknown ccmessv error"; +} + +#if defined(LOWVERBTRACE) || defined(DEBUG) +static void mes_dump(ccmes *mes, char *pfx) { +#ifdef DEBUG + fprintf(dbgo,"%s message:\n",pfx); + fprintf(dbgo," source_id = '%s'\n",mes->source_id); + fprintf(dbgo," destination_id = '%s'\n",mes->destination_id); + fprintf(dbgo," namespace = '%s'\n",mes->namespace); + if (mes->binary) { + fprintf(dbgo," payload =\n"); + cc_dump_bytes(dbgo," ", mes->data, mes->bin_len); + } else { + fprintf(dbgo," payload = '%s'\n",mes->data); + } +#else + fprintf(dbgo,"%s '%s'",pfx,mes->namespace); +#endif + if (mes->binary) { +#ifdef DEBUG + fprintf(dbgo," %d bytes of binary data:\n",mes->bin_len); + cc_dump_bytes(dbgo," ", mes->data, mes->bin_len); +#else + fprintf(dbgo,", %d bytes of bin data:\n",mes->bin_len); +#endif + } else { + /* Would like to pretty print the JSON data */ + /* ie. convert json_reformat.c to a function */ +#ifdef DEBUG + fprintf(dbgo," %d bytes of text data:\n",strlen(mes->data)); + fprintf(dbgo," '%s'\n",mes->data); +#else + yajl_val tnode, v, i; + int len = strlen((char *)mes->data); + tnode = yajl_tree_parse((char *)mes->data, NULL, 0); + if (tnode == NULL) { + fprintf(dbgo,", %d bytes of text data\n",len); + } else { + if ((v = yajl_tree_get_first(tnode, "type", yajl_t_string)) != NULL) { + char *mtype = YAJL_GET_STRING(v); + if ((i = yajl_tree_get_first(tnode, "requestId", yajl_t_number)) != NULL) { + int rqid = YAJL_GET_INTEGER(i); + fprintf(dbgo,", %d bytes of JSON data, type '%s' id %d\n", + len,mtype,rqid); + } else { + fprintf(dbgo,", %d bytes of JSON data, type '%s'\n",len,mtype); + } + } else { + fprintf(dbgo,", %d bytes of JSON data\n",len); + } + } +#endif + } +} +#endif + +/* Transfer the data from one message to another */ +void ccmes_transfer(ccmes *dst, ccmes *src) { + *dst = *src; /* Struct copy */ + memset((void *)src, 0, sizeof(*src)); +} + +/* Initialise a message */ +void ccmes_init(ccmes *mes) { + memset((void *)mes, 0, sizeof(*mes)); +} + +/* Free up just the contents */ +void ccmes_empty(ccmes *mes) { + if (mes->tnode != NULL) + yajl_tree_free(mes->tnode); + + if (mes->data != NULL) + free(mes->data); + + memset((void *)mes, 0, sizeof(*mes)); +} + +/* Free up the message and its contents */ +void ccmes_del(ccmes *mes) { + if (mes != NULL) { + ccmes_empty(mes); + free(mes); + } +} + +/* Send a normal raw message */ +/* Return ccmessv_err on error */ +ccmessv_err send_ccmessv(ccmessv *p, ccmes *mes) { + ccpacket_err perr; + ORD8 *buf; + unsigned int len; + Extensions__Api__CastChannel__CastMessage msg + = EXTENSIONS__API__CAST_CHANNEL__CAST_MESSAGE__INIT; + + if (p->pk == NULL) + return ccmessv_closed; + +#if defined(LOWVERBTRACE) || defined(DEBUG) + mes_dump(mes, "Send"); +#endif + + msg.protocol_version + = EXTENSIONS__API__CAST_CHANNEL__CAST_MESSAGE__PROTOCOL_VERSION__CASTV2_1_0; + msg.source_id = mes->source_id; + msg.destination_id = mes->destination_id; + msg.namespace_ = mes->namespace; + + if (mes->binary) { + msg.payload_type = EXTENSIONS__API__CAST_CHANNEL__CAST_MESSAGE__PAYLOAD_TYPE__BINARY; + msg.has_payload_binary = 1; + msg.payload_binary.len = mes->bin_len; + msg.payload_binary.data = (uint8_t *)mes->data; + msg.payload_utf8 = NULL; + } else { + msg.payload_type = EXTENSIONS__API__CAST_CHANNEL__CAST_MESSAGE__PAYLOAD_TYPE__STRING; + msg.payload_utf8 = (char *)mes->data; + msg.has_payload_binary = 0; + msg.payload_binary.len = 0; + msg.payload_binary.data = NULL; + } + len = extensions__api__cast_channel__cast_message__get_packed_size(&msg); + + if ((buf = malloc(len)) == NULL) + return ccmessv_malloc; + + extensions__api__cast_channel__cast_message__pack(&msg, buf); + + amutex_lock(p->slock); + if ((perr = p->pk->send(p->pk, buf, len)) != ccpacket_OK) { + amutex_unlock(p->slock); + free(buf); + if (perr == ccpacket_timeout) + return ccmessv_timeout; + return ccmessv_send; + } + amutex_unlock(p->slock); + free(buf); + + return ccmessv_OK; +} + +/* Receive a raw message. ccmes_clear() or ccmes_del() afterwards */ +/* Fills in tnode, mtype, rqid */ +/* Return ccmessv_err on error */ +ccmessv_err receive_ccmessv(ccmessv *p, ccmes *mes) { + ccpacket_err perr; + ORD8 *buf; + unsigned int len; + Extensions__Api__CastChannel__CastMessage *msg; + + if (p->pk == NULL) + return ccmessv_closed; + + if ((perr = p->pk->receive(p->pk, &buf, &len)) != ccpacket_OK) { + if (perr == ccpacket_timeout) + return ccmessv_timeout; + return ccmessv_recv; + } + + msg = extensions__api__cast_channel__cast_message__unpack(NULL, len, buf); + if (msg == NULL) + return ccmessv_unpack; + + ccmes_init(mes); + + if ((mes->source_id = strdup(msg->source_id)) == NULL) + return ccmessv_malloc; + if ((mes->destination_id = strdup(msg->destination_id)) == NULL) + return ccmessv_malloc; + if ((mes->namespace = strdup(msg->namespace_)) == NULL) + return ccmessv_malloc; + + if (msg->payload_type == EXTENSIONS__API__CAST_CHANNEL__CAST_MESSAGE__PAYLOAD_TYPE__BINARY) { + mes->binary = 1; + if ((mes->data = malloc(msg->payload_binary.len)) == NULL) + return ccmessv_malloc; + memcpy(mes->data, msg->payload_binary.data, msg->payload_binary.len); + mes->bin_len = msg->payload_binary.len; + } else { + mes->binary = 0; + if ((mes->data = (ORD8 *)strdup(msg->payload_utf8)) == NULL) + return ccmessv_malloc; + } + extensions__api__cast_channel__cast_message__free_unpacked(msg, NULL); + +#if defined(LOWVERBTRACE) || defined(DEBUG) + mes_dump(mes, "Recv"); +#endif + + /* Parse out some information if we can */ + mes->mtype = NULL; + mes->rqid = 0; + if (!mes->binary && mes->tnode == NULL) { + yajl_val tyn, idn; + char errbuf[1024]; + + if ((mes->tnode = yajl_tree_parse((char *)mes->data, errbuf, sizeof(errbuf))) == NULL) { + DBG((dbgo,"ccthread: yajl_tree_parse failed with '%s'\n",errbuf)) + } else if ((tyn = yajl_tree_get_first(mes->tnode, "type", yajl_t_string)) == NULL) { + DBG((dbgo,"ccthread: no type\n")) + } else { + mes->mtype = YAJL_GET_STRING(tyn); + if ((idn = yajl_tree_get_first(mes->tnode, "requestId", yajl_t_number)) != NULL) + mes->rqid = YAJL_GET_INTEGER(idn); + else { + DBG((dbgo,"ccthread: no id\n")) + } + } + } + + return ccmessv_OK; +} + +/* Delete the ccmessv */ +void del_ccmessv(ccmessv *p) { + if (p != NULL) { + amutex_del(p->slock); + if (p->pk != NULL) + p->pk->del(p->pk); + free(p); + } +} + +/* Create an ccmessv. We take ownership of pk */ +/* Return NULL on error */ +ccmessv *new_ccmessv(ccpacket *pk) { + ccmessv *p = NULL; + + if ((p = (ccmessv *)calloc(1, sizeof(ccmessv))) == NULL) { + DBG((dbgo, "calloc failed\n")) + return NULL; + } + + amutex_init(p->slock); + + p->pk = pk; + + /* Init method pointers */ + p->del = del_ccmessv; + p->send = send_ccmessv; + p->receive = receive_ccmessv; + + return p; +} + diff --git a/ccast/ccmes.h b/ccast/ccmes.h new file mode 100644 index 0000000..5eae02a --- /dev/null +++ b/ccast/ccmes.h @@ -0,0 +1,103 @@ + +#ifndef CCMES + +/* + * Class to deal with protobuf messages + * to/from ChromCast. + * + * Author: Graeme W. Gill + * Date: 3/9/2014 + * + * Copyright 2014 Graeme W. Gill + * All rights reserved. + * + * This material is licenced under the GNU AFFERO GENERAL PUBLIC LICENSE Version 3 :- + * see the License2.txt file for licencing details. + * + */ + +#ifdef __cplusplus + extern "C" { +#endif + +/* - - - - - - - - - - - - - - - - - - - - - - - - */ +/* A single message */ +typedef struct _ccmes { + struct _ccmes *next; /* Linked list */ + yajl_val tnode; /* If not NULL, top node of parsed data */ + char *mtype; /* If not NULL, "type". Points into tnode data */ + int rqid; /* "requestId", 0 by default */ + + char *source_id; /* Source name */ + char *destination_id; /* Destination name */ + char *namespace; /* Channel id */ + int binary; /* Binary data flag */ + ORD8 *data; /* String or binary */ + ORD32 bin_len; /* Binary data length */ +} ccmes; + +/* Transfer the data from one message to another */ +void ccmes_transfer(ccmes *dst, ccmes *src); + +/* Initialise a message */ +void ccmes_init(ccmes *mes); + +/* Free up just the contents */ +void ccmes_empty(ccmes *mes); + +/* Free up the message and its contents */ +void ccmes_del(ccmes *mes); + +/* - - - - - - - - - - - - - - - - - - - - - - - - */ + +typedef enum { + ccmessv_OK = 0, + ccmessv_malloc, /* malloc failed */ + ccmessv_context, /* Getting a ssl context failed */ + ccmessv_connect, /* Connecting to host failed */ + ccmessv_ssl, /* Establishing SSL connection to host failed */ + + ccmessv_send, /* Message body failed to send */ + ccmessv_recv, /* No body or failed to read */ + ccmessv_unpack, /* Failed to unpack protobufs */ + ccmessv_timeout, /* Failed due to timeout on i/o operation */ + ccmessv_closed /* Connection has been closed */ +} ccmessv_err; + +/* Error message from error number */ +char *ccmessv_emes(ccmessv_err rv); + + +/* The central facility to send and receive messages */ +typedef struct _ccmessv { + +/* Public: */ + + /* Delete the ccmessv */ + void (*del)(struct _ccmessv *p); + + /* Send a raw message */ + /* Return ccmessv_err on error */ + ccmessv_err (*send)(struct _ccmessv *p, ccmes *mes); + + /* Receive a message. mes->data should be free's after use */ + /* Return ccmessv_err on error */ + ccmessv_err (*receive)(struct _ccmessv *p, ccmes *mes); + + ccpacket *pk; + + amutex slock; /* Send lock protecting */ + +} ccmessv; + +/* Create a new ccmessv object, and hand it the working packet connection. */ +/* (ccmessv does not close it when deleted) */ +/* Return NULL on error */ +ccmessv *new_ccmessv(ccpacket *pk); + +#ifdef __cplusplus + } +#endif + +#define CCMES_H +#endif /* CCMES_H */ diff --git a/ccast/ccpacket.c b/ccast/ccpacket.c new file mode 100644 index 0000000..4c138f2 --- /dev/null +++ b/ccast/ccpacket.c @@ -0,0 +1,501 @@ + + +/* + * Class to deal with TLS connection to ChromCast, + * and send and recieve packat format data. + * + * Author: Graeme W. Gill + * Date: 3/9/2014 + * + * Copyright 2014 Graeme W. Gill + * All rights reserved. + * + * This material is licenced under the GNU AFFERO GENERAL PUBLIC LICENSE Version 3 :- + * see the License2.txt file for licencing details. + * + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include "copyright.h" +#include "aconfig.h" +#include +#ifndef SALONEINSTLIB +#include "numlib.h" +#else +#include "numsup.h" +#endif +#include "conv.h" +#include "ssl.h" /* axTLS header */ + +#undef DEBUG +#undef DUMPSDATA /* Send data */ +#undef DUMPRDATA /* Receive data */ + +#if defined(NT) // Windows specific +# if _WIN32_WINNT < 0x0400 +# undef _WIN32_WINNT +# define _WIN32_WINNT 0x0400 // To make it link in VS2005 +# endif +# define WIN32_LEAN_AND_MEAN +# include +# include +# include + +# include +# include +# include + +# define ERRNO GetLastError() +# ifndef ETIMEDOUT +# define ETIMEDOUT WSAETIMEDOUT +# endif + +#else /* !NT = Unix, OS X */ + +# include +# include +# include +# include +# include +# include +# include +# include +# include +# include +# include + +# include +# include +# include + +#undef SYNC_SSL /* Use lock to make sure ssl_read & write don't clash. */ + +typedef int SOCKET; +# define ERRNO errno + +# define INVALID_SOCKET -1 +# define SOCKET_ERROR -1 + +#define closesocket(xxx) close(xxx); + +#endif + +#define CCPACKET_IMPL +#include "ccpacket.h" + +/* ------------------------------------------------------------------- */ + +#ifdef DEBUG +# define dbgo stdout +# define DBG(xxx) fprintf xxx ; +void cc_dump_bytes(FILE *fp, char *pfx, unsigned char *buf, int len); +#else +# define DBG(xxx) ; +#endif /* DEBUG */ + +/* Error message from error number */ +char *ccpacket_emes(ccpacket_err rv) { +#ifndef SERVER_ONLY + if (rv & 0x10000000) { + return ccpacket_emes(rv & 0x0fffffff); + } +#endif + + switch(rv) { + case ccpacket_OK: + return "Packet: OK"; + case ccpacket_context: + return "Packet: getting a ssl contextfailed"; + case ccpacket_malloc: + return "Packet: malloc failed"; + case ccpacket_connect: + return "Packet: connecting to host failed"; + case ccpacket_ssl: + return "Packet: ssl connect to host failed"; + + case ccpacket_timeout: + return "Packet:: i/o timed out"; + case ccpacket_send: + return "Packet: message failed to send"; + case ccpacket_recv: + return "Packet: failed to read message"; + } + + return "Uknown ccpacket error"; +} + +/* Establish an ccpacket connection - implementation */ +static ccpacket_err connect_ccpacket_imp( + ccpacket *p +) { + struct sockaddr_in server; /* Server address */ + uint8_t sesid[32] = { 0 }; + int rv; + +#ifdef NT + WSADATA data; + WSAStartup(MAKEWORD(2,2), &data); +#endif + + server.sin_family = AF_INET; + server.sin_addr.s_addr = inet_addr(p->dip); + server.sin_port = htons((short)p->dport); + + if ((p->ctx = ssl_ctx_new(SSL_SERVER_VERIFY_LATER, 1)) == NULL) { + DBG((dbgo, "connect ssl_ctx_new failed\n")) + return ccpacket_context; + } + + /* Open socket */ + if ((p->sock = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP)) == INVALID_SOCKET) { + DBG((dbgo, "socket() failed with errno %d\n",ERRNO)) + return ccpacket_connect; + } + + /* Make recieve timeout after 100 msec, and send timeout after 2 seconds */ + { + struct linger ling; +#ifdef NT + DWORD tv; +#ifdef SYNC_SSL + tv = 100; +#else + tv = 2000; +#endif + if ((rv = setsockopt(p->sock, SOL_SOCKET, SO_RCVTIMEO, (const char*)&tv, + sizeof(tv))) < 0) { + DBG((dbgo,"setsockopt timout failed with %d, errno %d",rv,ERRNO)) + return ccpacket_connect; + } + tv = 2000; + if ((rv = setsockopt(p->sock, SOL_SOCKET, SO_SNDTIMEO, (const char*)&tv, + sizeof(tv))) < 0) { + DBG((dbgo,"setsockopt timout failed with %d, errno %d",rv,ERRNO)) + return ccpacket_connect; + } +#else + struct timeval tv; +#ifdef SYNC_SSL + tv.tv_sec = 0; + tv.tv_usec = 100 * 1000; +#else + tv.tv_sec = 2; + tv.tv_usec = 0; +#endif + if ((rv = setsockopt(p->sock, SOL_SOCKET, SO_RCVTIMEO, (const char*)&tv, + sizeof(tv))) < 0) { + DBG((dbgo,"setsockopt timout failed with %d, errno %d",rv,ERRNO)) + return ccpacket_connect; + } + tv.tv_sec = 2; + tv.tv_usec = 0; + if ((rv = setsockopt(p->sock, SOL_SOCKET, SO_SNDTIMEO, (const char*)&tv, + sizeof(tv))) < 0) { + DBG((dbgo,"setsockopt timout failed with %d, errno %d",rv,ERRNO)) + return ccpacket_connect; + } +#endif + +#ifdef NEVER /* This stops send timeout working - why ? */ + ling.l_onoff = 1; + ling.l_linger = 2; /* Two seconds */ + if ((rv = setsockopt(p->sock, SOL_SOCKET, SO_LINGER, (const char*)&ling, + sizeof(ling))) < 0) { + DBG((dbgo,"setsockopt timout failed with %d, errno %d",rv,ERRNO)) + return ccpacket_connect; + } +#endif /* NEVER */ + } + + /* Connect */ + if (rv = (connect(p->sock, (struct sockaddr *)&server, sizeof(server))) != 0) { + DBG((dbgo, "TCP connect IP '%s' port %d failed with %d, errno %d\n",p->dip, p->dport,rv,ERRNO)) + return ccpacket_connect; + } + DBG((dbgo, "socket connect IP '%s' port %d success\n",p->dip, p->dport)) + + /* Establish TLS */ + /* Return nz if we can send PNG directly as base64 + bg RGB, */ + /* else have to setup webserver and send URL */ + if ((p->ssl = ssl_client_new(p->ctx, p->sock, sesid, 32)) == NULL) { + DBG((dbgo, "connect IP '%s' port %d ssl_ctx_new failed\n",p->dip, p->dport)) + return ccpacket_ssl; + } + DBG((dbgo, "TLS connect IP '%s' port %d success\n",p->dip, p->dport)) + return ccpacket_OK; +} + +/* Establish an ccpacket connection */ +static ccpacket_err connect_ccpacket( + ccpacket *p, + char *dip, /* Destination IP address */ + int dport /* Destination Port number */ +) { + + if ((p->dip = strdup(dip)) == NULL) + return ccpacket_malloc; + p->dport = dport; + + return connect_ccpacket_imp(p); +} + +static void clear_ccpacket(ccpacket *p); + +/* Re-establish communication */ +static ccpacket_err re_connect_ccpacket( + ccpacket *p +) { + clear_ccpacket(p); + return connect_ccpacket_imp(p); +} + +/* It appears that the axTLS library can't deal with simultanous */ +/* send and recieve, due to the sharing of a single buffer and */ +/* intricate dependence on this in dealing with handshaking, so */ +/* rather than try and fix this limitation, we avoid the problem */ +/* with a lock. Note that we need to make sure that a receive */ +/* doesn't wait for too long, or it will block sends. */ + +/* Send a message */ +/* Return ccpacket_err on error */ +static ccpacket_err send_ccpacket(ccpacket *p, + ORD8 *buf, ORD32 len /* Message body to send */ +) { + int lens, rv; + ORD8 *sbuf; + ORD32 slen; + + if (p->ssl == NULL) + return ccpacket_ssl; + + if ((sbuf = malloc(4 + len)) == NULL) { + return ccpacket_malloc; + } + + write_ORD32_be(len, sbuf); + memcpy(sbuf+4, buf, len); + slen = len + 4; + +#if defined(DEBUG) && defined(DUMPSDATA) + printf("send_ccpacket sending packet:\n"); + cc_dump_bytes(dbgo," ", sbuf, slen); +#endif + + for (lens = 0; lens < slen; lens += rv) { + DBG((dbgo, "Sending packet %d bytes\n",slen - lens)) + if (p->ssl == NULL) { + return ccpacket_ssl; + } +#ifdef SYNC_SSL + amutex_lock(p->lock); +printf("~1 send locked\n"); +#endif + if ((rv = ssl_write(p->ssl, sbuf + lens, slen - lens)) < 0) { + DBG((dbgo, "TLS send body failed with '%s'\n",ssl_error_string(rv))) +#ifdef SYNC_SSL +printf("~1 send unlocked\n"); + amutex_unlock(p->lock); +#endif + free(sbuf); + if (rv == SSL_TIMEDOUT) + return ccpacket_timeout; + return ccpacket_send; + } +#ifdef SYNC_SSL +printf("~1 send unlocked\n"); + amutex_unlock(p->lock); +#endif + } + free(sbuf); + + return ccpacket_OK; +} + +/* Receive a message */ +/* Return ccpacket_err on error */ +static ccpacket_err receive_ccpacket(ccpacket *p, + ORD8 **pbuf, ORD32 *plen /* ccpacket received, free after use */ +) { + ORD8 *ibuf; /* Buffer from ssl_read() */ + int ioff, ilen; /* Remaining data at ioff lenght ilen in ibuf */ + ORD8 hbuf[4], *rbuf = hbuf; /* Header buffer, returned buffer */ + int tlen, clen, rlen; /* Target length, copy length, return length */ + + if (p->ssl == NULL) + return ccpacket_ssl; + +#ifdef SYNC_SSL + amutex_lock(p->lock); +printf("~1 receive locked\n"); +#endif + + /* Until we have 4 bytes for the header */ + for (tlen = 4, rlen = 0; rlen < tlen;) { + ioff = 0; + if ((ilen = ssl_read(p->ssl, &ibuf)) < 0) { + DBG((dbgo, "header recv failed with '%s'\n",ssl_error_string(ilen))) + if (ilen == SSL_OK) /* Hmm. */ + continue; +#ifdef SYNC_SSL +printf("~1 receive unlocked\n"); + amutex_unlock(p->lock); +#endif + if (ilen == SSL_TIMEDOUT) + return ccpacket_timeout; + return ccpacket_recv; + } + DBG((dbgo, "receive_ccpacket read %d bytes\n",ilen)) + if (ilen == 0) + continue; + if ((clen = ilen) > (tlen - rlen)) /* More than we need */ + clen = tlen - rlen; + memcpy(rbuf + rlen, ibuf + ioff, clen); + rlen += clen; + ioff += clen; + ilen -= clen; + } + /* We have ilen left in ibuf at offset ioff */ + DBG((dbgo, "receive_ccpacket %d bytes left over\n",ilen)) + + tlen = read_ORD32_be(ibuf); + DBG((dbgo, "receive_ccpacket expecting %d more bytes\n",tlen)) + + if (tlen < 0 || tlen > 64 * 2014) { +#ifdef SYNC_SSL +printf("~1 receive unlocked\n"); + amutex_unlock(p->lock); +#endif + DBG((dbgo, "receive_ccpacket got bad data length - returning error\n")) + return ccpacket_recv; + } + + if ((rbuf = malloc(tlen)) == NULL) { +#ifdef SYNC_SSL +printf("~1 receive unlocked\n"); + amutex_unlock(p->lock); +#endif + DBG((dbgo, "receive_ccpacket malloc failed\n")) + return ccpacket_malloc; + } + rlen = 0; + + /* Use any data we have left over from first read */ + if (ilen > 0) { + if ((clen = ilen) > (tlen - rlen)) + clen = tlen - rlen; + DBG((dbgo, "receive_ccpacket using %d spair bytesr\n",clen)) + memcpy(rbuf + rlen, ibuf + ioff, clen); + rlen += clen; + ioff += clen; + ilen -= clen; + } + + /* Get the remainder of the body if we need to */ + for (; rlen < tlen;) { + ioff = 0; + if ((ilen = ssl_read(p->ssl, &ibuf)) < 0) { + DBG((dbgo, "body recv failed with '%s'\n",ssl_error_string(ilen))) + if (ilen == SSL_OK) + continue; +#ifdef SYNC_SSL +printf("~1 receive unlocked\n"); + amutex_unlock(p->lock); +#endif + if (ilen == SSL_TIMEDOUT) + return ccpacket_timeout; + return ccpacket_recv; + } + DBG((dbgo, "receive_ccpacket read %d bytes\n",ilen)) + if (ilen == 0) + continue; + if ((clen = ilen) > (tlen - rlen)) + clen = tlen - rlen; + memcpy(rbuf + rlen, ibuf + ioff, clen); + rlen += clen; + ioff += clen; + ilen -= clen; + } +#ifdef SYNC_SSL +printf("~1 receive unlocked\n"); + amutex_unlock(p->lock); +#endif + if (ilen > 0) { /* Hmm. We should keep this for the next read ?*/ + DBG((dbgo, " ################## got %d byts left over ###########\n", ilen)) + } +#if defined(DEBUG) && defined(DUMPRDATA) + printf("receive_ccpacket got:\n"); + cc_dump_bytes(dbgo," ", rbuf, rlen); +#endif + *pbuf = rbuf; + *plen = rlen; + + return ccpacket_OK; +} + +/* Clear the ccpacket */ +static void clear_ccpacket(ccpacket *p) { + if (p != NULL) { + + if (p->ssl != NULL) { + ssl_free(p->ssl); + p->ssl = NULL; + } + if (p->ctx != NULL) { + ssl_ctx_free(p->ctx); + p->ctx = NULL; + } + if (p->sock != INVALID_SOCKET) { + closesocket(p->sock); + p->sock = 0; + } + } +} + +/* Delete the ccpacket */ +static void del_ccpacket(ccpacket *p) { + if (p != NULL) { + clear_ccpacket(p); + if (p->dip != NULL) { + free(p->dip); + p->dip = NULL; + } +#ifdef SYNC_SSL + amutex_del(p->lock); +#endif + free(p); + } +} + +/* Create an ccpacket. */ +/* Return NULL on error */ +ccpacket *new_ccpacket() { + ccpacket *p = NULL; + + if ((p = (ccpacket *)calloc(1, sizeof(ccpacket))) == NULL) { + DBG((dbgo, "calloc failed\n")) + return NULL; + } + +#ifdef SYNC_SSL + amutex_init(p->lock); +#endif + + /* Init method pointers */ + p->del = del_ccpacket; + p->connect = connect_ccpacket; + p->reconnect = re_connect_ccpacket; + p->send = send_ccpacket; + p->receive = receive_ccpacket; + + return p; +} + diff --git a/ccast/ccpacket.h b/ccast/ccpacket.h new file mode 100644 index 0000000..e4f6f76 --- /dev/null +++ b/ccast/ccpacket.h @@ -0,0 +1,89 @@ + +#ifndef PACKET_H + +/* + * Class to deal with TLS connection to ChromCast, + * and send and recieve packat format data. + * + * Author: Graeme W. Gill + * Date: 3/9/2014 + * + * Copyright 2014 Graeme W. Gill + * All rights reserved. + * + * This material is licenced under the GNU AFFERO GENERAL PUBLIC LICENSE Version 3 :- + * see the License2.txt file for licencing details. + * + */ + +#ifdef __cplusplus + extern "C" { +#endif + +typedef enum { + ccpacket_OK = 0, + ccpacket_malloc, /* malloc failed */ + ccpacket_context, /* Getting a ssl context failed */ + ccpacket_connect, /* Connecting to host failed */ + ccpacket_ssl, /* Establishing SSL connection to host failed */ + + ccpacket_timeout, /* i/o timed out */ + ccpacket_send, /* Message failed to send */ + ccpacket_recv /* Messafe failed to read */ +} ccpacket_err; + +/* Error message from error number */ +char *ccpacket_emes(ccpacket_err rv); + +typedef struct _ccpacket { + +/* Public: */ + + /* Delete the ccpacket */ + void (*del)(struct _ccpacket *p); + + /* Establish an ccpacket connection */ + /* Return ccpacket_err on error */ + ccpacket_err (*connect)(struct _ccpacket *p, + char *dip, /* Destination IP address */ + int dport /* Destination Port number */ + ); + + /* Clear the connection and then re-stablish it */ + /* Return ccpacket_err on error */ + ccpacket_err (*reconnect)(struct _ccpacket *p); + + /* Send a message */ + /* Return ccpacket_err on error */ + ccpacket_err (*send)(struct _ccpacket *p, + ORD8 *buf, ORD32 len /* Message body to send */ + ); + + /* Receive a message */ + /* Return ccpacket_err on error */ + ccpacket_err (*receive)(struct _ccpacket *p, + ORD8 **pbuf, ORD32 *plen /* ccpacket received, free after use */ + ); + +#ifdef CCPACKET_IMPL +/* Private */ + char *dip; /* Destination IP address */ + int dport; /* Destination Port number */ + SOCKET sock; + SSL_CTX *ctx; + SSL *ssl; + amutex lock; /* Lock to prevent simultanious send & receive */ +#endif + +} ccpacket; + +/* Create a new ccpacket object */ +/* Return NULL on error */ +ccpacket *new_ccpacket(); + +#ifdef __cplusplus + } +#endif + +#define CCPACKET_H +#endif /* CCPACKET_H */ diff --git a/ccast/cctest.c b/ccast/cctest.c new file mode 100644 index 0000000..2c95ae1 --- /dev/null +++ b/ccast/cctest.c @@ -0,0 +1,329 @@ + +/* + * Argyll Color Correction System + * ChromCast test harness + * + * Author: Graeme W. Gill + * Date: 28/8/2014 + * + * Copyright 2014 Graeme W. Gill + * All rights reserved. + * + * This material is licenced under the GNU AFFERO GENERAL PUBLIC LICENSE Version 3 :- + * see the License2.txt file for licencing details. + * + */ + +#include +#include +#include +#include +#include +#include "copyright.h" +#include "aconfig.h" +#ifndef SALONEINSTLIB +#include "numlib.h" +#else +#include "numsup.h" +#endif +#include "ccmdns.h" +#include "ccpacket.h" +#include "ccmes.h" +#include "yajl.h" + +/* Check if JSON is invalid */ +/* Exits if invalid */ +static void check_json(char *mesbuf) { + yajl_val node; + char errbuf[1024]; + + if ((node = yajl_tree_parse(mesbuf, errbuf, sizeof(errbuf))) == NULL) { + printf("yajl_tree_parse of send message failed with '%s'\n",errbuf); + printf("JSON = '%s'\n",mesbuf); + exit(1); + } + yajl_tree_free(node); +} + +/* Return nz on error */ +static int get_a_reply(ccmessv *mes, ORD8 **pdata) { + ccmessv_err merr; + char *source_id; + char *destination_id; + char *namespace; + int binary; /* Flag */ + ORD8 *data; /* String or binary */ + ORD32 bin_len; /* Binary data length */ + + if ((merr = mes->receive(mes, &source_id, &destination_id, &namespace, + &binary, &data, &bin_len)) != ccmessv_OK) { + printf("mes->receive failed with '%s'\n",ccmessv_emes(merr)); + return -1; + } else { + printf("Got message:\n"); + printf(" source_id = '%s'\n",source_id); + printf(" destination_id = '%s'\n",destination_id); + printf(" namespace = '%s'\n",namespace); + printf(" binary = %d\n",binary); + if (binary) { + printf(" payload =\n"); + cc_dump_bytes(stdout, " ", data, bin_len); + } else { + printf(" payload = '%s'\n",data); + } + if (pdata != NULL) + *pdata = data; + else + free(data); + } + return 0; +} + +/* Get replies until we get one with the matching Id, then return */ +static int get_a_reply_id(ccmessv *mes, int tid, ORD8 **pdata) { + ORD8 *data; + int id, rv; + yajl_val node, v; + char errbuf[1024]; + +//printf("~~~ looking for id %d\n",tid); + for (;;) { + int id = -1; + + if ((rv = get_a_reply(mes, &data)) != 0) + return rv; + +// printf("\nGot JSON data to parse: '%s'\n",data); + if ((node = yajl_tree_parse(data, errbuf, sizeof(errbuf))) == NULL) + error("yajl_tree_parse failed with '%s'",errbuf); + + if ((v = yajl_tree_get_first(node, "requestId", yajl_t_number)) != NULL) { + printf("~~~~ Got id %d\n",id); + id = YAJL_GET_INTEGER(v); + } + yajl_tree_free(node); + + if (id == tid) { +//printf("~~~ got our message\n"); + break; + } + free(data); +//printf("~~~ round we go again\n"); + } + if (pdata != NULL) + *pdata = data; + else + free(data); + return 0; +} + +/* Do the authentication sequence */ +static void authenticate(ccmessv *mes) { + + /* (Not needed) */ +} + +int +main( + int argc, + char *argv[] +) { + ccast_id **ids; + int i; + ccpacket *pk; + ccpacket_err perr; + ccmessv *mes; + ccmessv_err merr; + char *sessionId = NULL; + char *transportId = NULL; + char mesbuf[1024]; + + if ((ids = get_ccids()) == NULL) { + error("get_ccids() failed"); + } + + if (ids[0] == NULL) { + error("Found no ChromCasts"); + } + + for (i = 0; ids[i] != NULL; i++) { + printf("Entry %d:\n",i); + printf(" Name: %s\n",ids[i]->name); + printf(" IP: %s\n",ids[i]->ip); + } + + if ((pk = new_ccpacket()) == NULL) { + error("new_ccpacket() failed"); + } + + if ((perr = pk->connect(pk, ids[0]->ip, 8009)) != ccpacket_OK) { + error("ccpacket connect failed with '%s",ccpacket_emes(perr)); + } + printf("Got TLS connection to '%s\n'",ids[0]->name); + + if ((mes = new_ccmessv(pk)) == NULL) { + error("new_ccmessv() failed"); + } + + /* Attempt a connection */ + if ((merr = mes->send(mes, "sender-0", "receiver-0", + "urn:x-cast:com.google.cast.tp.connection", 0, + "{ \"type\": \"CONNECT\" }", 0)) != ccmessv_OK) { + error("mes->send CONNECT failed with '%s'",ccmessv_emes(merr)); + } + + /* Send a ping */ + if ((merr = mes->send(mes, "sender-0", "receiver-0", + "urn:x-cast:com.google.cast.tp.heartbeat", 0, + "{ \"type\": \"PING\" }", 0)) != ccmessv_OK) { + error("mes->send PING failed with '%s'",ccmessv_emes(merr)); + } + + /* Wait for a PONG */ + get_a_reply(mes, NULL); + + authenticate(mes); + + /* Launch the default application */ + /* (Presumably we would use the com.google.cast.receiver channel */ + /* for monitoring and controlling the reciever) */ + if ((merr = mes->send(mes, "sender-0", "receiver-0", + "urn:x-cast:com.google.cast.receiver", 0, + "{ \"requestId\": 1, \"type\": \"LAUNCH\", \"appId\": \"CC1AD845\" }", 0)) != ccmessv_OK) { + error("mes->send LAUNCH failed with '%s'",ccmessv_emes(merr)); + } + + /* Receive the RECEIVER_STATUS status messages until it is ready to cast */ + /* and get the sessionId and transportId */ + /* We get periodic notification messages (requestId=0) as well as */ + /* a response messages (requestId=1) */ + for (;sessionId == NULL || transportId == NULL;) { + ORD8 *data; + yajl_val node, v; + char errbuf[1024]; + + get_a_reply(mes, &data); + +// printf("\nGot JSON data to parse: '%s'\n",data); + if ((node = yajl_tree_parse(data, errbuf, sizeof(errbuf))) == NULL) + error("yajl_tree_parse failed with '%s'",errbuf); + + if ((v = yajl_tree_get_first(node, "sessionId", yajl_t_string)) != NULL) { + sessionId = strdup(YAJL_GET_STRING(v)); +// printf("~1 got sessionId = '%s'\n",sessionId); + } + + if ((v = yajl_tree_get_first(node, "transportId", yajl_t_string)) != NULL) { + transportId = strdup(YAJL_GET_STRING(v)); +// printf("~1 got transportId = '%s'\n",transportId); + } + free(data); + yajl_tree_free(node); + } + + printf("\ngot sessionId = '%s', transportId = '%s'\n",sessionId, transportId); + + printf("\nAbout to send URL\n"); + + /* Connect up to the reciever media channels */ + if ((merr = mes->send(mes, "med_send", transportId, + "urn:x-cast:com.google.cast.tp.connection", 0, + "{ \"type\": \"CONNECT\" }", 0)) != ccmessv_OK) { + error("mes->send CONNECT failed with '%s'",ccmessv_emes(merr)); + } + + // "urn:x-cast:com.google.cast.player.message" + // "urn:x-cast:com.google.cast.media"} + + sprintf(mesbuf, "{ \"requestId\": 2, \"type\": \"LOAD\", \"media\": " + "{ \"contentId\": \"http://www.argyllcms.com/ArgyllCMSLogo.gif\",\"streamType\": \"LIVE\"," + "\"contentType\": \"image/gif\" } }"); + +// "\"contentType\": \"image/gif\", \"duration\" : 0.1 }, \"autplay\": \"true\" }"); + + check_json(mesbuf); + + /* Send the LOAD command */ + if ((merr = mes->send(mes, "med_send", transportId, + "urn:x-cast:com.google.cast.media", 0, + mesbuf, 0 + )) != ccmessv_OK) { + error("mes->send LOAD failed with '%s'",ccmessv_emes(merr)); + } + + if (get_a_reply_id(mes, 2, NULL) != 0) + exit(1); + + msec_sleep(2000); + +#ifdef NEVER + /* Check the media status */ + if ((merr = mes->send(mes, "med_send", transportId, + "urn:x-cast:com.google.cast.media", 0, + "{ \"requestId\": 3, \"type\": \"GET_STATUS\" }", 0)) != ccmessv_OK) { + error("mes->send GET_STATUS failed with '%s'",ccmessv_emes(merr)); + } + + if (get_a_reply_id(mes, 3, NULL) != 0) + exit(1); +#endif + + sprintf(mesbuf, "{ \"requestId\": 4, \"type\": \"LOAD\", \"media\": { \"contentId\": \"http://www.argyllcms.com/testing.png\",\"streamType\": \"LIVE\",\"contentType\": \"image/png\" } }"); + +// sprintf(mesbuf, "{ \"requestId\": 4, \"type\": \"LOAD\", \"media\": { \"contentId\": \"http://www.argyllcms.com/testing.tif\",\"streamType\": \"LIVE\",\"contentType\": \"image/tiff\" } }"); +// sprintf(mesbuf, "{ \"requestId\": 4, \"type\": \"LOAD\", \"media\": { \"contentId\": \"http://www.argyllcms.com/doc/sl.jpg\",\"streamType\": \"LIVE\",\"contentType\": \"image/jpeg\" } }"); + check_json(mesbuf); + + /* Send the LOAD command */ + if ((merr = mes->send(mes, "med_send", transportId, + "urn:x-cast:com.google.cast.media", 0, + mesbuf, 0 + )) != ccmessv_OK) { + error("mes->send LOAD failed with '%s'",ccmessv_emes(merr)); + } + + if (get_a_reply_id(mes, 4, NULL) != 0) + exit(1); + + msec_sleep(2000); + +#ifdef NEVER + /* Check the media status */ + if ((merr = mes->send(mes, "med_send", transportId, + "urn:x-cast:com.google.cast.media", 0, + "{ \"requestId\": 5, \"type\": \"GET_STATUS\" }", 0)) != ccmessv_OK) { + error("mes->send GET_STATUS failed with '%s'",ccmessv_emes(merr)); + } + + if (get_a_reply_id(mes, 5, NULL) != 0) + exit(1); +#endif + +#ifdef NEVER + /* Try and send it an image URL */ + if ((merr = mes->send(mes, "med_send", transportId, + "urn:x-cast:com.google.cast.media", 0, +// "{ \"imageUrl\": \"http://www.argyllcms.com/ArgyllCMSLogo.gif\", \"requestId\": 6 }", 0)) != ccmessv_OK) { + "{ \"url\": \"http://www.argyllcms.com/ArgyllCMSLogo.gif\", \"requestId\": 2 }", 0)) != ccmessv_OK) { + error("mes->send imageUrl failed with '%s'",ccmessv_emes(merr)); + } + +#endif + /* Wait for any reply */ + for (;;) { + if (get_a_reply(mes, NULL) != 0) + break; + } + + // ~~999 + + mes->del(mes); + pk->del(pk); + + printf("Disconnected from '%s'\n",ids[0]->name); + + free_ccids(ids); + + return 0; +} + diff --git a/ccast/chan/cast_channel.pb-c.c b/ccast/chan/cast_channel.pb-c.c new file mode 100644 index 0000000..ec79608 --- /dev/null +++ b/ccast/chan/cast_channel.pb-c.c @@ -0,0 +1,593 @@ +/* Generated by the protocol buffer compiler. DO NOT EDIT! */ +/* Generated from: cast_channel.proto */ + +/* Do not generate deprecated warnings for self */ +#ifndef PROTOBUF_C__NO_DEPRECATED +#define PROTOBUF_C__NO_DEPRECATED +#endif + +#include "cast_channel.pb-c.h" +void extensions__api__cast_channel__cast_message__init + (Extensions__Api__CastChannel__CastMessage *message) +{ + static Extensions__Api__CastChannel__CastMessage init_value = EXTENSIONS__API__CAST_CHANNEL__CAST_MESSAGE__INIT; + *message = init_value; +} +size_t extensions__api__cast_channel__cast_message__get_packed_size + (const Extensions__Api__CastChannel__CastMessage *message) +{ + assert(message->base.descriptor == &extensions__api__cast_channel__cast_message__descriptor); + return protobuf_c_message_get_packed_size ((const ProtobufCMessage*)(message)); +} +size_t extensions__api__cast_channel__cast_message__pack + (const Extensions__Api__CastChannel__CastMessage *message, + uint8_t *out) +{ + assert(message->base.descriptor == &extensions__api__cast_channel__cast_message__descriptor); + return protobuf_c_message_pack ((const ProtobufCMessage*)message, out); +} +size_t extensions__api__cast_channel__cast_message__pack_to_buffer + (const Extensions__Api__CastChannel__CastMessage *message, + ProtobufCBuffer *buffer) +{ + assert(message->base.descriptor == &extensions__api__cast_channel__cast_message__descriptor); + return protobuf_c_message_pack_to_buffer ((const ProtobufCMessage*)message, buffer); +} +Extensions__Api__CastChannel__CastMessage * + extensions__api__cast_channel__cast_message__unpack + (ProtobufCAllocator *allocator, + size_t len, + const uint8_t *data) +{ + return (Extensions__Api__CastChannel__CastMessage *) + protobuf_c_message_unpack (&extensions__api__cast_channel__cast_message__descriptor, + allocator, len, data); +} +void extensions__api__cast_channel__cast_message__free_unpacked + (Extensions__Api__CastChannel__CastMessage *message, + ProtobufCAllocator *allocator) +{ + assert(message->base.descriptor == &extensions__api__cast_channel__cast_message__descriptor); + protobuf_c_message_free_unpacked ((ProtobufCMessage*)message, allocator); +} +void extensions__api__cast_channel__auth_challenge__init + (Extensions__Api__CastChannel__AuthChallenge *message) +{ + static Extensions__Api__CastChannel__AuthChallenge init_value = EXTENSIONS__API__CAST_CHANNEL__AUTH_CHALLENGE__INIT; + *message = init_value; +} +size_t extensions__api__cast_channel__auth_challenge__get_packed_size + (const Extensions__Api__CastChannel__AuthChallenge *message) +{ + assert(message->base.descriptor == &extensions__api__cast_channel__auth_challenge__descriptor); + return protobuf_c_message_get_packed_size ((const ProtobufCMessage*)(message)); +} +size_t extensions__api__cast_channel__auth_challenge__pack + (const Extensions__Api__CastChannel__AuthChallenge *message, + uint8_t *out) +{ + assert(message->base.descriptor == &extensions__api__cast_channel__auth_challenge__descriptor); + return protobuf_c_message_pack ((const ProtobufCMessage*)message, out); +} +size_t extensions__api__cast_channel__auth_challenge__pack_to_buffer + (const Extensions__Api__CastChannel__AuthChallenge *message, + ProtobufCBuffer *buffer) +{ + assert(message->base.descriptor == &extensions__api__cast_channel__auth_challenge__descriptor); + return protobuf_c_message_pack_to_buffer ((const ProtobufCMessage*)message, buffer); +} +Extensions__Api__CastChannel__AuthChallenge * + extensions__api__cast_channel__auth_challenge__unpack + (ProtobufCAllocator *allocator, + size_t len, + const uint8_t *data) +{ + return (Extensions__Api__CastChannel__AuthChallenge *) + protobuf_c_message_unpack (&extensions__api__cast_channel__auth_challenge__descriptor, + allocator, len, data); +} +void extensions__api__cast_channel__auth_challenge__free_unpacked + (Extensions__Api__CastChannel__AuthChallenge *message, + ProtobufCAllocator *allocator) +{ + assert(message->base.descriptor == &extensions__api__cast_channel__auth_challenge__descriptor); + protobuf_c_message_free_unpacked ((ProtobufCMessage*)message, allocator); +} +void extensions__api__cast_channel__auth_response__init + (Extensions__Api__CastChannel__AuthResponse *message) +{ + static Extensions__Api__CastChannel__AuthResponse init_value = EXTENSIONS__API__CAST_CHANNEL__AUTH_RESPONSE__INIT; + *message = init_value; +} +size_t extensions__api__cast_channel__auth_response__get_packed_size + (const Extensions__Api__CastChannel__AuthResponse *message) +{ + assert(message->base.descriptor == &extensions__api__cast_channel__auth_response__descriptor); + return protobuf_c_message_get_packed_size ((const ProtobufCMessage*)(message)); +} +size_t extensions__api__cast_channel__auth_response__pack + (const Extensions__Api__CastChannel__AuthResponse *message, + uint8_t *out) +{ + assert(message->base.descriptor == &extensions__api__cast_channel__auth_response__descriptor); + return protobuf_c_message_pack ((const ProtobufCMessage*)message, out); +} +size_t extensions__api__cast_channel__auth_response__pack_to_buffer + (const Extensions__Api__CastChannel__AuthResponse *message, + ProtobufCBuffer *buffer) +{ + assert(message->base.descriptor == &extensions__api__cast_channel__auth_response__descriptor); + return protobuf_c_message_pack_to_buffer ((const ProtobufCMessage*)message, buffer); +} +Extensions__Api__CastChannel__AuthResponse * + extensions__api__cast_channel__auth_response__unpack + (ProtobufCAllocator *allocator, + size_t len, + const uint8_t *data) +{ + return (Extensions__Api__CastChannel__AuthResponse *) + protobuf_c_message_unpack (&extensions__api__cast_channel__auth_response__descriptor, + allocator, len, data); +} +void extensions__api__cast_channel__auth_response__free_unpacked + (Extensions__Api__CastChannel__AuthResponse *message, + ProtobufCAllocator *allocator) +{ + assert(message->base.descriptor == &extensions__api__cast_channel__auth_response__descriptor); + protobuf_c_message_free_unpacked ((ProtobufCMessage*)message, allocator); +} +void extensions__api__cast_channel__auth_error__init + (Extensions__Api__CastChannel__AuthError *message) +{ + static Extensions__Api__CastChannel__AuthError init_value = EXTENSIONS__API__CAST_CHANNEL__AUTH_ERROR__INIT; + *message = init_value; +} +size_t extensions__api__cast_channel__auth_error__get_packed_size + (const Extensions__Api__CastChannel__AuthError *message) +{ + assert(message->base.descriptor == &extensions__api__cast_channel__auth_error__descriptor); + return protobuf_c_message_get_packed_size ((const ProtobufCMessage*)(message)); +} +size_t extensions__api__cast_channel__auth_error__pack + (const Extensions__Api__CastChannel__AuthError *message, + uint8_t *out) +{ + assert(message->base.descriptor == &extensions__api__cast_channel__auth_error__descriptor); + return protobuf_c_message_pack ((const ProtobufCMessage*)message, out); +} +size_t extensions__api__cast_channel__auth_error__pack_to_buffer + (const Extensions__Api__CastChannel__AuthError *message, + ProtobufCBuffer *buffer) +{ + assert(message->base.descriptor == &extensions__api__cast_channel__auth_error__descriptor); + return protobuf_c_message_pack_to_buffer ((const ProtobufCMessage*)message, buffer); +} +Extensions__Api__CastChannel__AuthError * + extensions__api__cast_channel__auth_error__unpack + (ProtobufCAllocator *allocator, + size_t len, + const uint8_t *data) +{ + return (Extensions__Api__CastChannel__AuthError *) + protobuf_c_message_unpack (&extensions__api__cast_channel__auth_error__descriptor, + allocator, len, data); +} +void extensions__api__cast_channel__auth_error__free_unpacked + (Extensions__Api__CastChannel__AuthError *message, + ProtobufCAllocator *allocator) +{ + assert(message->base.descriptor == &extensions__api__cast_channel__auth_error__descriptor); + protobuf_c_message_free_unpacked ((ProtobufCMessage*)message, allocator); +} +void extensions__api__cast_channel__device_auth_message__init + (Extensions__Api__CastChannel__DeviceAuthMessage *message) +{ + static Extensions__Api__CastChannel__DeviceAuthMessage init_value = EXTENSIONS__API__CAST_CHANNEL__DEVICE_AUTH_MESSAGE__INIT; + *message = init_value; +} +size_t extensions__api__cast_channel__device_auth_message__get_packed_size + (const Extensions__Api__CastChannel__DeviceAuthMessage *message) +{ + assert(message->base.descriptor == &extensions__api__cast_channel__device_auth_message__descriptor); + return protobuf_c_message_get_packed_size ((const ProtobufCMessage*)(message)); +} +size_t extensions__api__cast_channel__device_auth_message__pack + (const Extensions__Api__CastChannel__DeviceAuthMessage *message, + uint8_t *out) +{ + assert(message->base.descriptor == &extensions__api__cast_channel__device_auth_message__descriptor); + return protobuf_c_message_pack ((const ProtobufCMessage*)message, out); +} +size_t extensions__api__cast_channel__device_auth_message__pack_to_buffer + (const Extensions__Api__CastChannel__DeviceAuthMessage *message, + ProtobufCBuffer *buffer) +{ + assert(message->base.descriptor == &extensions__api__cast_channel__device_auth_message__descriptor); + return protobuf_c_message_pack_to_buffer ((const ProtobufCMessage*)message, buffer); +} +Extensions__Api__CastChannel__DeviceAuthMessage * + extensions__api__cast_channel__device_auth_message__unpack + (ProtobufCAllocator *allocator, + size_t len, + const uint8_t *data) +{ + return (Extensions__Api__CastChannel__DeviceAuthMessage *) + protobuf_c_message_unpack (&extensions__api__cast_channel__device_auth_message__descriptor, + allocator, len, data); +} +void extensions__api__cast_channel__device_auth_message__free_unpacked + (Extensions__Api__CastChannel__DeviceAuthMessage *message, + ProtobufCAllocator *allocator) +{ + assert(message->base.descriptor == &extensions__api__cast_channel__device_auth_message__descriptor); + protobuf_c_message_free_unpacked ((ProtobufCMessage*)message, allocator); +} +const ProtobufCEnumValue extensions__api__cast_channel__cast_message__protocol_version__enum_values_by_number[1] = +{ + { "CASTV2_1_0", "EXTENSIONS__API__CAST_CHANNEL__CAST_MESSAGE__PROTOCOL_VERSION__CASTV2_1_0", 0 }, +}; +static const ProtobufCIntRange extensions__api__cast_channel__cast_message__protocol_version__value_ranges[] = { +{0, 0},{0, 1} +}; +const ProtobufCEnumValueIndex extensions__api__cast_channel__cast_message__protocol_version__enum_values_by_name[1] = +{ + { "CASTV2_1_0", 0 }, +}; +const ProtobufCEnumDescriptor extensions__api__cast_channel__cast_message__protocol_version__descriptor = +{ + PROTOBUF_C__ENUM_DESCRIPTOR_MAGIC, + "extensions.api.cast_channel.CastMessage.ProtocolVersion", + "ProtocolVersion", + "Extensions__Api__CastChannel__CastMessage__ProtocolVersion", + "extensions.api.cast_channel", + 1, + extensions__api__cast_channel__cast_message__protocol_version__enum_values_by_number, + 1, + extensions__api__cast_channel__cast_message__protocol_version__enum_values_by_name, + 1, + extensions__api__cast_channel__cast_message__protocol_version__value_ranges, + NULL,NULL,NULL,NULL /* reserved[1234] */ +}; +const ProtobufCEnumValue extensions__api__cast_channel__cast_message__payload_type__enum_values_by_number[2] = +{ + { "STRING", "EXTENSIONS__API__CAST_CHANNEL__CAST_MESSAGE__PAYLOAD_TYPE__STRING", 0 }, + { "BINARY", "EXTENSIONS__API__CAST_CHANNEL__CAST_MESSAGE__PAYLOAD_TYPE__BINARY", 1 }, +}; +static const ProtobufCIntRange extensions__api__cast_channel__cast_message__payload_type__value_ranges[] = { +{0, 0},{0, 2} +}; +const ProtobufCEnumValueIndex extensions__api__cast_channel__cast_message__payload_type__enum_values_by_name[2] = +{ + { "BINARY", 1 }, + { "STRING", 0 }, +}; +const ProtobufCEnumDescriptor extensions__api__cast_channel__cast_message__payload_type__descriptor = +{ + PROTOBUF_C__ENUM_DESCRIPTOR_MAGIC, + "extensions.api.cast_channel.CastMessage.PayloadType", + "PayloadType", + "Extensions__Api__CastChannel__CastMessage__PayloadType", + "extensions.api.cast_channel", + 2, + extensions__api__cast_channel__cast_message__payload_type__enum_values_by_number, + 2, + extensions__api__cast_channel__cast_message__payload_type__enum_values_by_name, + 1, + extensions__api__cast_channel__cast_message__payload_type__value_ranges, + NULL,NULL,NULL,NULL /* reserved[1234] */ +}; +static const ProtobufCFieldDescriptor extensions__api__cast_channel__cast_message__field_descriptors[7] = +{ + { + "protocol_version", + 1, + PROTOBUF_C_LABEL_REQUIRED, + PROTOBUF_C_TYPE_ENUM, + 0, /* quantifier_offset */ + offsetof(Extensions__Api__CastChannel__CastMessage, protocol_version), + &extensions__api__cast_channel__cast_message__protocol_version__descriptor, + NULL, + 0, /* flags */ + 0,NULL,NULL /* reserved1,reserved2, etc */ + }, + { + "source_id", + 2, + PROTOBUF_C_LABEL_REQUIRED, + PROTOBUF_C_TYPE_STRING, + 0, /* quantifier_offset */ + offsetof(Extensions__Api__CastChannel__CastMessage, source_id), + NULL, + NULL, + 0, /* flags */ + 0,NULL,NULL /* reserved1,reserved2, etc */ + }, + { + "destination_id", + 3, + PROTOBUF_C_LABEL_REQUIRED, + PROTOBUF_C_TYPE_STRING, + 0, /* quantifier_offset */ + offsetof(Extensions__Api__CastChannel__CastMessage, destination_id), + NULL, + NULL, + 0, /* flags */ + 0,NULL,NULL /* reserved1,reserved2, etc */ + }, + { + "namespace", + 4, + PROTOBUF_C_LABEL_REQUIRED, + PROTOBUF_C_TYPE_STRING, + 0, /* quantifier_offset */ + offsetof(Extensions__Api__CastChannel__CastMessage, namespace_), + NULL, + NULL, + 0, /* flags */ + 0,NULL,NULL /* reserved1,reserved2, etc */ + }, + { + "payload_type", + 5, + PROTOBUF_C_LABEL_REQUIRED, + PROTOBUF_C_TYPE_ENUM, + 0, /* quantifier_offset */ + offsetof(Extensions__Api__CastChannel__CastMessage, payload_type), + &extensions__api__cast_channel__cast_message__payload_type__descriptor, + NULL, + 0, /* flags */ + 0,NULL,NULL /* reserved1,reserved2, etc */ + }, + { + "payload_utf8", + 6, + PROTOBUF_C_LABEL_OPTIONAL, + PROTOBUF_C_TYPE_STRING, + 0, /* quantifier_offset */ + offsetof(Extensions__Api__CastChannel__CastMessage, payload_utf8), + NULL, + NULL, + 0, /* flags */ + 0,NULL,NULL /* reserved1,reserved2, etc */ + }, + { + "payload_binary", + 7, + PROTOBUF_C_LABEL_OPTIONAL, + PROTOBUF_C_TYPE_BYTES, + offsetof(Extensions__Api__CastChannel__CastMessage, has_payload_binary), + offsetof(Extensions__Api__CastChannel__CastMessage, payload_binary), + NULL, + NULL, + 0, /* flags */ + 0,NULL,NULL /* reserved1,reserved2, etc */ + }, +}; +static const unsigned extensions__api__cast_channel__cast_message__field_indices_by_name[] = { + 2, /* field[2] = destination_id */ + 3, /* field[3] = namespace */ + 6, /* field[6] = payload_binary */ + 4, /* field[4] = payload_type */ + 5, /* field[5] = payload_utf8 */ + 0, /* field[0] = protocol_version */ + 1, /* field[1] = source_id */ +}; +static const ProtobufCIntRange extensions__api__cast_channel__cast_message__number_ranges[1 + 1] = +{ + { 1, 0 }, + { 0, 7 } +}; +const ProtobufCMessageDescriptor extensions__api__cast_channel__cast_message__descriptor = +{ + PROTOBUF_C__MESSAGE_DESCRIPTOR_MAGIC, + "extensions.api.cast_channel.CastMessage", + "CastMessage", + "Extensions__Api__CastChannel__CastMessage", + "extensions.api.cast_channel", + sizeof(Extensions__Api__CastChannel__CastMessage), + 7, + extensions__api__cast_channel__cast_message__field_descriptors, + extensions__api__cast_channel__cast_message__field_indices_by_name, + 1, extensions__api__cast_channel__cast_message__number_ranges, + (ProtobufCMessageInit) extensions__api__cast_channel__cast_message__init, + NULL,NULL,NULL /* reserved[123] */ +}; +#define extensions__api__cast_channel__auth_challenge__field_descriptors NULL +#define extensions__api__cast_channel__auth_challenge__field_indices_by_name NULL +#define extensions__api__cast_channel__auth_challenge__number_ranges NULL +const ProtobufCMessageDescriptor extensions__api__cast_channel__auth_challenge__descriptor = +{ + PROTOBUF_C__MESSAGE_DESCRIPTOR_MAGIC, + "extensions.api.cast_channel.AuthChallenge", + "AuthChallenge", + "Extensions__Api__CastChannel__AuthChallenge", + "extensions.api.cast_channel", + sizeof(Extensions__Api__CastChannel__AuthChallenge), + 0, + extensions__api__cast_channel__auth_challenge__field_descriptors, + extensions__api__cast_channel__auth_challenge__field_indices_by_name, + 0, extensions__api__cast_channel__auth_challenge__number_ranges, + (ProtobufCMessageInit) extensions__api__cast_channel__auth_challenge__init, + NULL,NULL,NULL /* reserved[123] */ +}; +static const ProtobufCFieldDescriptor extensions__api__cast_channel__auth_response__field_descriptors[2] = +{ + { + "signature", + 1, + PROTOBUF_C_LABEL_REQUIRED, + PROTOBUF_C_TYPE_BYTES, + 0, /* quantifier_offset */ + offsetof(Extensions__Api__CastChannel__AuthResponse, signature), + NULL, + NULL, + 0, /* flags */ + 0,NULL,NULL /* reserved1,reserved2, etc */ + }, + { + "client_auth_certificate", + 2, + PROTOBUF_C_LABEL_REQUIRED, + PROTOBUF_C_TYPE_BYTES, + 0, /* quantifier_offset */ + offsetof(Extensions__Api__CastChannel__AuthResponse, client_auth_certificate), + NULL, + NULL, + 0, /* flags */ + 0,NULL,NULL /* reserved1,reserved2, etc */ + }, +}; +static const unsigned extensions__api__cast_channel__auth_response__field_indices_by_name[] = { + 1, /* field[1] = client_auth_certificate */ + 0, /* field[0] = signature */ +}; +static const ProtobufCIntRange extensions__api__cast_channel__auth_response__number_ranges[1 + 1] = +{ + { 1, 0 }, + { 0, 2 } +}; +const ProtobufCMessageDescriptor extensions__api__cast_channel__auth_response__descriptor = +{ + PROTOBUF_C__MESSAGE_DESCRIPTOR_MAGIC, + "extensions.api.cast_channel.AuthResponse", + "AuthResponse", + "Extensions__Api__CastChannel__AuthResponse", + "extensions.api.cast_channel", + sizeof(Extensions__Api__CastChannel__AuthResponse), + 2, + extensions__api__cast_channel__auth_response__field_descriptors, + extensions__api__cast_channel__auth_response__field_indices_by_name, + 1, extensions__api__cast_channel__auth_response__number_ranges, + (ProtobufCMessageInit) extensions__api__cast_channel__auth_response__init, + NULL,NULL,NULL /* reserved[123] */ +}; +const ProtobufCEnumValue extensions__api__cast_channel__auth_error__error_type__enum_values_by_number[2] = +{ + { "INTERNAL_ERROR", "EXTENSIONS__API__CAST_CHANNEL__AUTH_ERROR__ERROR_TYPE__INTERNAL_ERROR", 0 }, + { "NO_TLS", "EXTENSIONS__API__CAST_CHANNEL__AUTH_ERROR__ERROR_TYPE__NO_TLS", 1 }, +}; +static const ProtobufCIntRange extensions__api__cast_channel__auth_error__error_type__value_ranges[] = { +{0, 0},{0, 2} +}; +const ProtobufCEnumValueIndex extensions__api__cast_channel__auth_error__error_type__enum_values_by_name[2] = +{ + { "INTERNAL_ERROR", 0 }, + { "NO_TLS", 1 }, +}; +const ProtobufCEnumDescriptor extensions__api__cast_channel__auth_error__error_type__descriptor = +{ + PROTOBUF_C__ENUM_DESCRIPTOR_MAGIC, + "extensions.api.cast_channel.AuthError.ErrorType", + "ErrorType", + "Extensions__Api__CastChannel__AuthError__ErrorType", + "extensions.api.cast_channel", + 2, + extensions__api__cast_channel__auth_error__error_type__enum_values_by_number, + 2, + extensions__api__cast_channel__auth_error__error_type__enum_values_by_name, + 1, + extensions__api__cast_channel__auth_error__error_type__value_ranges, + NULL,NULL,NULL,NULL /* reserved[1234] */ +}; +static const ProtobufCFieldDescriptor extensions__api__cast_channel__auth_error__field_descriptors[1] = +{ + { + "error_type", + 1, + PROTOBUF_C_LABEL_REQUIRED, + PROTOBUF_C_TYPE_ENUM, + 0, /* quantifier_offset */ + offsetof(Extensions__Api__CastChannel__AuthError, error_type), + &extensions__api__cast_channel__auth_error__error_type__descriptor, + NULL, + 0, /* flags */ + 0,NULL,NULL /* reserved1,reserved2, etc */ + }, +}; +static const unsigned extensions__api__cast_channel__auth_error__field_indices_by_name[] = { + 0, /* field[0] = error_type */ +}; +static const ProtobufCIntRange extensions__api__cast_channel__auth_error__number_ranges[1 + 1] = +{ + { 1, 0 }, + { 0, 1 } +}; +const ProtobufCMessageDescriptor extensions__api__cast_channel__auth_error__descriptor = +{ + PROTOBUF_C__MESSAGE_DESCRIPTOR_MAGIC, + "extensions.api.cast_channel.AuthError", + "AuthError", + "Extensions__Api__CastChannel__AuthError", + "extensions.api.cast_channel", + sizeof(Extensions__Api__CastChannel__AuthError), + 1, + extensions__api__cast_channel__auth_error__field_descriptors, + extensions__api__cast_channel__auth_error__field_indices_by_name, + 1, extensions__api__cast_channel__auth_error__number_ranges, + (ProtobufCMessageInit) extensions__api__cast_channel__auth_error__init, + NULL,NULL,NULL /* reserved[123] */ +}; +static const ProtobufCFieldDescriptor extensions__api__cast_channel__device_auth_message__field_descriptors[3] = +{ + { + "challenge", + 1, + PROTOBUF_C_LABEL_OPTIONAL, + PROTOBUF_C_TYPE_MESSAGE, + 0, /* quantifier_offset */ + offsetof(Extensions__Api__CastChannel__DeviceAuthMessage, challenge), + &extensions__api__cast_channel__auth_challenge__descriptor, + NULL, + 0, /* flags */ + 0,NULL,NULL /* reserved1,reserved2, etc */ + }, + { + "response", + 2, + PROTOBUF_C_LABEL_OPTIONAL, + PROTOBUF_C_TYPE_MESSAGE, + 0, /* quantifier_offset */ + offsetof(Extensions__Api__CastChannel__DeviceAuthMessage, response), + &extensions__api__cast_channel__auth_response__descriptor, + NULL, + 0, /* flags */ + 0,NULL,NULL /* reserved1,reserved2, etc */ + }, + { + "error", + 3, + PROTOBUF_C_LABEL_OPTIONAL, + PROTOBUF_C_TYPE_MESSAGE, + 0, /* quantifier_offset */ + offsetof(Extensions__Api__CastChannel__DeviceAuthMessage, error), + &extensions__api__cast_channel__auth_error__descriptor, + NULL, + 0, /* flags */ + 0,NULL,NULL /* reserved1,reserved2, etc */ + }, +}; +static const unsigned extensions__api__cast_channel__device_auth_message__field_indices_by_name[] = { + 0, /* field[0] = challenge */ + 2, /* field[2] = error */ + 1, /* field[1] = response */ +}; +static const ProtobufCIntRange extensions__api__cast_channel__device_auth_message__number_ranges[1 + 1] = +{ + { 1, 0 }, + { 0, 3 } +}; +const ProtobufCMessageDescriptor extensions__api__cast_channel__device_auth_message__descriptor = +{ + PROTOBUF_C__MESSAGE_DESCRIPTOR_MAGIC, + "extensions.api.cast_channel.DeviceAuthMessage", + "DeviceAuthMessage", + "Extensions__Api__CastChannel__DeviceAuthMessage", + "extensions.api.cast_channel", + sizeof(Extensions__Api__CastChannel__DeviceAuthMessage), + 3, + extensions__api__cast_channel__device_auth_message__field_descriptors, + extensions__api__cast_channel__device_auth_message__field_indices_by_name, + 1, extensions__api__cast_channel__device_auth_message__number_ranges, + (ProtobufCMessageInit) extensions__api__cast_channel__device_auth_message__init, + NULL,NULL,NULL /* reserved[123] */ +}; diff --git a/ccast/chan/cast_channel.pb-c.h b/ccast/chan/cast_channel.pb-c.h new file mode 100644 index 0000000..982e420 --- /dev/null +++ b/ccast/chan/cast_channel.pb-c.h @@ -0,0 +1,233 @@ +/* Generated by the protocol buffer compiler. DO NOT EDIT! */ +/* Generated from: cast_channel.proto */ + +#ifndef PROTOBUF_C_cast_5fchannel_2eproto__INCLUDED +#define PROTOBUF_C_cast_5fchannel_2eproto__INCLUDED + +#include "protobuf-c.h" + +PROTOBUF_C__BEGIN_DECLS + +#if PROTOBUF_C_VERSION_NUMBER < 1000000 +# error This file was generated by a newer version of protoc-c which is incompatible with your libprotobuf-c headers. Please update your headers. +#elif 1000001 < PROTOBUF_C_MIN_COMPILER_VERSION +# error This file was generated by an older version of protoc-c which is incompatible with your libprotobuf-c headers. Please regenerate this file with a newer version of protoc-c. +#endif + + +typedef struct _Extensions__Api__CastChannel__CastMessage Extensions__Api__CastChannel__CastMessage; +typedef struct _Extensions__Api__CastChannel__AuthChallenge Extensions__Api__CastChannel__AuthChallenge; +typedef struct _Extensions__Api__CastChannel__AuthResponse Extensions__Api__CastChannel__AuthResponse; +typedef struct _Extensions__Api__CastChannel__AuthError Extensions__Api__CastChannel__AuthError; +typedef struct _Extensions__Api__CastChannel__DeviceAuthMessage Extensions__Api__CastChannel__DeviceAuthMessage; + + +/* --- enums --- */ + +typedef enum _Extensions__Api__CastChannel__CastMessage__ProtocolVersion { + EXTENSIONS__API__CAST_CHANNEL__CAST_MESSAGE__PROTOCOL_VERSION__CASTV2_1_0 = 0 + PROTOBUF_C__FORCE_ENUM_TO_BE_INT_SIZE(EXTENSIONS__API__CAST_CHANNEL__CAST_MESSAGE__PROTOCOL_VERSION) +} Extensions__Api__CastChannel__CastMessage__ProtocolVersion; +typedef enum _Extensions__Api__CastChannel__CastMessage__PayloadType { + EXTENSIONS__API__CAST_CHANNEL__CAST_MESSAGE__PAYLOAD_TYPE__STRING = 0, + EXTENSIONS__API__CAST_CHANNEL__CAST_MESSAGE__PAYLOAD_TYPE__BINARY = 1 + PROTOBUF_C__FORCE_ENUM_TO_BE_INT_SIZE(EXTENSIONS__API__CAST_CHANNEL__CAST_MESSAGE__PAYLOAD_TYPE) +} Extensions__Api__CastChannel__CastMessage__PayloadType; +typedef enum _Extensions__Api__CastChannel__AuthError__ErrorType { + EXTENSIONS__API__CAST_CHANNEL__AUTH_ERROR__ERROR_TYPE__INTERNAL_ERROR = 0, + EXTENSIONS__API__CAST_CHANNEL__AUTH_ERROR__ERROR_TYPE__NO_TLS = 1 + PROTOBUF_C__FORCE_ENUM_TO_BE_INT_SIZE(EXTENSIONS__API__CAST_CHANNEL__AUTH_ERROR__ERROR_TYPE) +} Extensions__Api__CastChannel__AuthError__ErrorType; + +/* --- messages --- */ + +struct _Extensions__Api__CastChannel__CastMessage +{ + ProtobufCMessage base; + Extensions__Api__CastChannel__CastMessage__ProtocolVersion protocol_version; + char *source_id; + char *destination_id; + char *namespace_; + Extensions__Api__CastChannel__CastMessage__PayloadType payload_type; + char *payload_utf8; + protobuf_c_boolean has_payload_binary; + ProtobufCBinaryData payload_binary; +}; +#define EXTENSIONS__API__CAST_CHANNEL__CAST_MESSAGE__INIT \ + { PROTOBUF_C_MESSAGE_INIT (&extensions__api__cast_channel__cast_message__descriptor) \ + , 0, NULL, NULL, NULL, 0, NULL, 0,{0,NULL} } + + +struct _Extensions__Api__CastChannel__AuthChallenge +{ + ProtobufCMessage base; +}; +#define EXTENSIONS__API__CAST_CHANNEL__AUTH_CHALLENGE__INIT \ + { PROTOBUF_C_MESSAGE_INIT (&extensions__api__cast_channel__auth_challenge__descriptor) \ + } + + +struct _Extensions__Api__CastChannel__AuthResponse +{ + ProtobufCMessage base; + ProtobufCBinaryData signature; + ProtobufCBinaryData client_auth_certificate; +}; +#define EXTENSIONS__API__CAST_CHANNEL__AUTH_RESPONSE__INIT \ + { PROTOBUF_C_MESSAGE_INIT (&extensions__api__cast_channel__auth_response__descriptor) \ + , {0,NULL}, {0,NULL} } + + +struct _Extensions__Api__CastChannel__AuthError +{ + ProtobufCMessage base; + Extensions__Api__CastChannel__AuthError__ErrorType error_type; +}; +#define EXTENSIONS__API__CAST_CHANNEL__AUTH_ERROR__INIT \ + { PROTOBUF_C_MESSAGE_INIT (&extensions__api__cast_channel__auth_error__descriptor) \ + , 0 } + + +struct _Extensions__Api__CastChannel__DeviceAuthMessage +{ + ProtobufCMessage base; + Extensions__Api__CastChannel__AuthChallenge *challenge; + Extensions__Api__CastChannel__AuthResponse *response; + Extensions__Api__CastChannel__AuthError *error; +}; +#define EXTENSIONS__API__CAST_CHANNEL__DEVICE_AUTH_MESSAGE__INIT \ + { PROTOBUF_C_MESSAGE_INIT (&extensions__api__cast_channel__device_auth_message__descriptor) \ + , NULL, NULL, NULL } + + +/* Extensions__Api__CastChannel__CastMessage methods */ +void extensions__api__cast_channel__cast_message__init + (Extensions__Api__CastChannel__CastMessage *message); +size_t extensions__api__cast_channel__cast_message__get_packed_size + (const Extensions__Api__CastChannel__CastMessage *message); +size_t extensions__api__cast_channel__cast_message__pack + (const Extensions__Api__CastChannel__CastMessage *message, + uint8_t *out); +size_t extensions__api__cast_channel__cast_message__pack_to_buffer + (const Extensions__Api__CastChannel__CastMessage *message, + ProtobufCBuffer *buffer); +Extensions__Api__CastChannel__CastMessage * + extensions__api__cast_channel__cast_message__unpack + (ProtobufCAllocator *allocator, + size_t len, + const uint8_t *data); +void extensions__api__cast_channel__cast_message__free_unpacked + (Extensions__Api__CastChannel__CastMessage *message, + ProtobufCAllocator *allocator); +/* Extensions__Api__CastChannel__AuthChallenge methods */ +void extensions__api__cast_channel__auth_challenge__init + (Extensions__Api__CastChannel__AuthChallenge *message); +size_t extensions__api__cast_channel__auth_challenge__get_packed_size + (const Extensions__Api__CastChannel__AuthChallenge *message); +size_t extensions__api__cast_channel__auth_challenge__pack + (const Extensions__Api__CastChannel__AuthChallenge *message, + uint8_t *out); +size_t extensions__api__cast_channel__auth_challenge__pack_to_buffer + (const Extensions__Api__CastChannel__AuthChallenge *message, + ProtobufCBuffer *buffer); +Extensions__Api__CastChannel__AuthChallenge * + extensions__api__cast_channel__auth_challenge__unpack + (ProtobufCAllocator *allocator, + size_t len, + const uint8_t *data); +void extensions__api__cast_channel__auth_challenge__free_unpacked + (Extensions__Api__CastChannel__AuthChallenge *message, + ProtobufCAllocator *allocator); +/* Extensions__Api__CastChannel__AuthResponse methods */ +void extensions__api__cast_channel__auth_response__init + (Extensions__Api__CastChannel__AuthResponse *message); +size_t extensions__api__cast_channel__auth_response__get_packed_size + (const Extensions__Api__CastChannel__AuthResponse *message); +size_t extensions__api__cast_channel__auth_response__pack + (const Extensions__Api__CastChannel__AuthResponse *message, + uint8_t *out); +size_t extensions__api__cast_channel__auth_response__pack_to_buffer + (const Extensions__Api__CastChannel__AuthResponse *message, + ProtobufCBuffer *buffer); +Extensions__Api__CastChannel__AuthResponse * + extensions__api__cast_channel__auth_response__unpack + (ProtobufCAllocator *allocator, + size_t len, + const uint8_t *data); +void extensions__api__cast_channel__auth_response__free_unpacked + (Extensions__Api__CastChannel__AuthResponse *message, + ProtobufCAllocator *allocator); +/* Extensions__Api__CastChannel__AuthError methods */ +void extensions__api__cast_channel__auth_error__init + (Extensions__Api__CastChannel__AuthError *message); +size_t extensions__api__cast_channel__auth_error__get_packed_size + (const Extensions__Api__CastChannel__AuthError *message); +size_t extensions__api__cast_channel__auth_error__pack + (const Extensions__Api__CastChannel__AuthError *message, + uint8_t *out); +size_t extensions__api__cast_channel__auth_error__pack_to_buffer + (const Extensions__Api__CastChannel__AuthError *message, + ProtobufCBuffer *buffer); +Extensions__Api__CastChannel__AuthError * + extensions__api__cast_channel__auth_error__unpack + (ProtobufCAllocator *allocator, + size_t len, + const uint8_t *data); +void extensions__api__cast_channel__auth_error__free_unpacked + (Extensions__Api__CastChannel__AuthError *message, + ProtobufCAllocator *allocator); +/* Extensions__Api__CastChannel__DeviceAuthMessage methods */ +void extensions__api__cast_channel__device_auth_message__init + (Extensions__Api__CastChannel__DeviceAuthMessage *message); +size_t extensions__api__cast_channel__device_auth_message__get_packed_size + (const Extensions__Api__CastChannel__DeviceAuthMessage *message); +size_t extensions__api__cast_channel__device_auth_message__pack + (const Extensions__Api__CastChannel__DeviceAuthMessage *message, + uint8_t *out); +size_t extensions__api__cast_channel__device_auth_message__pack_to_buffer + (const Extensions__Api__CastChannel__DeviceAuthMessage *message, + ProtobufCBuffer *buffer); +Extensions__Api__CastChannel__DeviceAuthMessage * + extensions__api__cast_channel__device_auth_message__unpack + (ProtobufCAllocator *allocator, + size_t len, + const uint8_t *data); +void extensions__api__cast_channel__device_auth_message__free_unpacked + (Extensions__Api__CastChannel__DeviceAuthMessage *message, + ProtobufCAllocator *allocator); +/* --- per-message closures --- */ + +typedef void (*Extensions__Api__CastChannel__CastMessage_Closure) + (const Extensions__Api__CastChannel__CastMessage *message, + void *closure_data); +typedef void (*Extensions__Api__CastChannel__AuthChallenge_Closure) + (const Extensions__Api__CastChannel__AuthChallenge *message, + void *closure_data); +typedef void (*Extensions__Api__CastChannel__AuthResponse_Closure) + (const Extensions__Api__CastChannel__AuthResponse *message, + void *closure_data); +typedef void (*Extensions__Api__CastChannel__AuthError_Closure) + (const Extensions__Api__CastChannel__AuthError *message, + void *closure_data); +typedef void (*Extensions__Api__CastChannel__DeviceAuthMessage_Closure) + (const Extensions__Api__CastChannel__DeviceAuthMessage *message, + void *closure_data); + +/* --- services --- */ + + +/* --- descriptors --- */ + +extern const ProtobufCMessageDescriptor extensions__api__cast_channel__cast_message__descriptor; +extern const ProtobufCEnumDescriptor extensions__api__cast_channel__cast_message__protocol_version__descriptor; +extern const ProtobufCEnumDescriptor extensions__api__cast_channel__cast_message__payload_type__descriptor; +extern const ProtobufCMessageDescriptor extensions__api__cast_channel__auth_challenge__descriptor; +extern const ProtobufCMessageDescriptor extensions__api__cast_channel__auth_response__descriptor; +extern const ProtobufCMessageDescriptor extensions__api__cast_channel__auth_error__descriptor; +extern const ProtobufCEnumDescriptor extensions__api__cast_channel__auth_error__error_type__descriptor; +extern const ProtobufCMessageDescriptor extensions__api__cast_channel__device_auth_message__descriptor; + +PROTOBUF_C__END_DECLS + + +#endif /* PROTOBUF_C_cast_5fchannel_2eproto__INCLUDED */ diff --git a/ccast/chan/protobuf-c.c b/ccast/chan/protobuf-c.c new file mode 100644 index 0000000..1157d8b --- /dev/null +++ b/ccast/chan/protobuf-c.c @@ -0,0 +1,3287 @@ +/* + * Copyright (c) 2008-2014, Dave Benson and the protobuf-c authors. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following disclaimer + * in the documentation and/or other materials provided with the + * distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +/*! \file + * Support library for `protoc-c` generated code. + * + * This file implements the public API used by the code generated + * by `protoc-c`. + * + * \authors Dave Benson and the protobuf-c authors + * + * \copyright 2008-2014. Licensed under the terms of the [BSD-2-Clause] license. + */ + +/** + * \todo 64-BIT OPTIMIZATION: certain implementations use 32-bit math + * even on 64-bit platforms (uint64_size, uint64_pack, parse_uint64). + * + * \todo Use size_t consistently. + */ + +#include /* for malloc, free */ +#include /* for strcmp, strlen, memcpy, memmove, memset */ + +#include "protobuf-c.h" + +#define TRUE 1 +#define FALSE 0 + +#define PROTOBUF_C__ASSERT_NOT_REACHED() assert(0) + +/* VC6 doesn't support inline */ +#define inline + +/** + * \defgroup internal Internal functions and macros + * + * These are not exported by the library but are useful to developers working + * on `libprotobuf-c` itself. + */ + +/** + * \defgroup macros Utility macros for manipulating structures + * + * Macros and constants used to manipulate the base "classes" generated by + * `protobuf-c`. They also define limits and check correctness. + * + * \ingroup internal + * @{ + */ + +/** The maximum length of a 64-bit integer in varint encoding. */ +#define MAX_UINT64_ENCODED_SIZE 10 + +#ifndef PROTOBUF_C_UNPACK_ERROR +# define PROTOBUF_C_UNPACK_ERROR(xxx) +#endif + +/** + * Internal `ProtobufCMessage` manipulation macro. + * + * Base macro for manipulating a `ProtobufCMessage`. Used by STRUCT_MEMBER() and + * STRUCT_MEMBER_PTR(). + */ +#define STRUCT_MEMBER_P(struct_p, struct_offset) \ + ((void *) ((uint8_t *) (struct_p) + (struct_offset))) + +/** + * Return field in a `ProtobufCMessage` based on offset. + * + * Take a pointer to a `ProtobufCMessage` and find the field at the offset. + * Cast it to the passed type. + */ +#define STRUCT_MEMBER(member_type, struct_p, struct_offset) \ + (*(member_type *) STRUCT_MEMBER_P((struct_p), (struct_offset))) + +/** + * Return field in a `ProtobufCMessage` based on offset. + * + * Take a pointer to a `ProtobufCMessage` and find the field at the offset. Cast + * it to a pointer to the passed type. + */ +#define STRUCT_MEMBER_PTR(member_type, struct_p, struct_offset) \ + ((member_type *) STRUCT_MEMBER_P((struct_p), (struct_offset))) + +/* Assertions for magic numbers. */ + +#define ASSERT_IS_ENUM_DESCRIPTOR(desc) \ + assert((desc)->magic == PROTOBUF_C__ENUM_DESCRIPTOR_MAGIC) + +#define ASSERT_IS_MESSAGE_DESCRIPTOR(desc) \ + assert((desc)->magic == PROTOBUF_C__MESSAGE_DESCRIPTOR_MAGIC) + +#define ASSERT_IS_MESSAGE(message) \ + ASSERT_IS_MESSAGE_DESCRIPTOR((message)->descriptor) + +#define ASSERT_IS_SERVICE_DESCRIPTOR(desc) \ + assert((desc)->magic == PROTOBUF_C__SERVICE_DESCRIPTOR_MAGIC) + +/**@}*/ + +/* --- version --- */ + +const char * +protobuf_c_version(void) +{ + return PROTOBUF_C_VERSION; +} + +uint32_t +protobuf_c_version_number(void) +{ + return PROTOBUF_C_VERSION_NUMBER; +} + +/* --- allocator --- */ + +static void * +system_alloc(void *allocator_data, size_t size) +{ + return malloc(size); +} + +static void +system_free(void *allocator_data, void *data) +{ + free(data); +} + +static inline void * +do_alloc(ProtobufCAllocator *allocator, size_t size) +{ + return allocator->alloc(allocator->allocator_data, size); +} + +static inline void +do_free(ProtobufCAllocator *allocator, void *data) +{ + if (data != NULL) + allocator->free(allocator->allocator_data, data); +} + +/* + * This allocator uses the system's malloc() and free(). It is the default + * allocator used if NULL is passed as the ProtobufCAllocator to an exported + * function. + */ +static ProtobufCAllocator protobuf_c__allocator = { +#ifdef NEVER + .alloc = &system_alloc, + .free = &system_free, + .allocator_data = NULL, +#else + &system_alloc, + &system_free, + NULL +#endif +}; + +/* === buffer-simple === */ + +void +protobuf_c_buffer_simple_append(ProtobufCBuffer *buffer, + size_t len, const uint8_t *data) +{ + ProtobufCBufferSimple *simp = (ProtobufCBufferSimple *) buffer; + size_t new_len = simp->len + len; + + if (new_len > simp->alloced) { + ProtobufCAllocator *allocator = simp->allocator; + size_t new_alloced = simp->alloced * 2; + uint8_t *new_data; + + if (allocator == NULL) + allocator = &protobuf_c__allocator; + while (new_alloced < new_len) + new_alloced += new_alloced; + new_data = do_alloc(allocator, new_alloced); + if (!new_data) + return; + memcpy(new_data, simp->data, simp->len); + if (simp->must_free_data) + do_free(allocator, simp->data); + else + simp->must_free_data = TRUE; + simp->data = new_data; + simp->alloced = new_alloced; + } + memcpy(simp->data + simp->len, data, len); + simp->len = new_len; +} + +/** + * \defgroup packedsz protobuf_c_message_get_packed_size() implementation + * + * Routines mainly used by protobuf_c_message_get_packed_size(). + * + * \ingroup internal + * @{ + */ + +/** + * Return the number of bytes required to store the tag for the field. Includes + * 3 bits for the wire-type, and a single bit that denotes the end-of-tag. + * + * \param number + * Field tag to encode. + * \return + * Number of bytes required. + */ +static inline size_t +get_tag_size(unsigned number) +{ + if (number < (1 << 4)) { + return 1; + } else if (number < (1 << 11)) { + return 2; + } else if (number < (1 << 18)) { + return 3; + } else if (number < (1 << 25)) { + return 4; + } else { + return 5; + } +} + +/** + * Return the number of bytes required to store a variable-length unsigned + * 32-bit integer in base-128 varint encoding. + * + * \param v + * Value to encode. + * \return + * Number of bytes required. + */ +static inline size_t +uint32_size(uint32_t v) +{ + if (v < (1 << 7)) { + return 1; + } else if (v < (1 << 14)) { + return 2; + } else if (v < (1 << 21)) { + return 3; + } else if (v < (1 << 28)) { + return 4; + } else { + return 5; + } +} + +/** + * Return the number of bytes required to store a variable-length signed 32-bit + * integer in base-128 varint encoding. + * + * \param v + * Value to encode. + * \return + * Number of bytes required. + */ +static inline size_t +int32_size(int32_t v) +{ + if (v < 0) { + return 10; + } else if (v < (1 << 7)) { + return 1; + } else if (v < (1 << 14)) { + return 2; + } else if (v < (1 << 21)) { + return 3; + } else if (v < (1 << 28)) { + return 4; + } else { + return 5; + } +} + +/** + * Return the ZigZag-encoded 32-bit unsigned integer form of a 32-bit signed + * integer. + * + * \param v + * Value to encode. + * \return + * ZigZag encoded integer. + */ +static inline uint32_t +zigzag32(int32_t v) +{ + if (v < 0) + return ((uint32_t) (-v)) * 2 - 1; + else + return v * 2; +} + +/** + * Return the number of bytes required to store a signed 32-bit integer, + * converted to an unsigned 32-bit integer with ZigZag encoding, using base-128 + * varint encoding. + * + * \param v + * Value to encode. + * \return + * Number of bytes required. + */ +static inline size_t +sint32_size(int32_t v) +{ + return uint32_size(zigzag32(v)); +} + +/** + * Return the number of bytes required to store a 64-bit unsigned integer in + * base-128 varint encoding. + * + * \param v + * Value to encode. + * \return + * Number of bytes required. + */ +static inline size_t +uint64_size(uint64_t v) +{ + uint32_t upper_v = (uint32_t) (v >> 32); + + if (upper_v == 0) { + return uint32_size((uint32_t) v); + } else if (upper_v < (1 << 3)) { + return 5; + } else if (upper_v < (1 << 10)) { + return 6; + } else if (upper_v < (1 << 17)) { + return 7; + } else if (upper_v < (1 << 24)) { + return 8; + } else if (upper_v < (1U << 31)) { + return 9; + } else { + return 10; + } +} + +/** + * Return the ZigZag-encoded 64-bit unsigned integer form of a 64-bit signed + * integer. + * + * \param v + * Value to encode. + * \return + * ZigZag encoded integer. + */ +static inline uint64_t +zigzag64(int64_t v) +{ + if (v < 0) + return ((uint64_t) (-v)) * 2 - 1; + else + return v * 2; +} + +/** + * Return the number of bytes required to store a signed 64-bit integer, + * converted to an unsigned 64-bit integer with ZigZag encoding, using base-128 + * varint encoding. + * + * \param v + * Value to encode. + * \return + * Number of bytes required. + */ +static inline size_t +sint64_size(int64_t v) +{ + return uint64_size(zigzag64(v)); +} + +/** + * Calculate the serialized size of a single required message field, including + * the space needed by the preceding tag. + * + * \param field + * Field descriptor for member. + * \param member + * Field to encode. + * \return + * Number of bytes required. + */ +static size_t +required_field_get_packed_size(const ProtobufCFieldDescriptor *field, + const void *member) +{ + size_t rv = get_tag_size(field->id); + + switch (field->type) { + case PROTOBUF_C_TYPE_SINT32: + return rv + sint32_size(*(const int32_t *) member); + case PROTOBUF_C_TYPE_INT32: + return rv + int32_size(*(const uint32_t *) member); + case PROTOBUF_C_TYPE_UINT32: + return rv + uint32_size(*(const uint32_t *) member); + case PROTOBUF_C_TYPE_SINT64: + return rv + sint64_size(*(const int64_t *) member); + case PROTOBUF_C_TYPE_INT64: + case PROTOBUF_C_TYPE_UINT64: + return rv + uint64_size(*(const uint64_t *) member); + case PROTOBUF_C_TYPE_SFIXED32: + case PROTOBUF_C_TYPE_FIXED32: + return rv + 4; + case PROTOBUF_C_TYPE_SFIXED64: + case PROTOBUF_C_TYPE_FIXED64: + return rv + 8; + case PROTOBUF_C_TYPE_BOOL: + return rv + 1; + case PROTOBUF_C_TYPE_FLOAT: + return rv + 4; + case PROTOBUF_C_TYPE_DOUBLE: + return rv + 8; + case PROTOBUF_C_TYPE_ENUM: + /* \todo Is this correct for negative-valued enums? */ + return rv + uint32_size(*(const uint32_t *) member); + case PROTOBUF_C_TYPE_STRING: { + const char *str = *(char * const *) member; + size_t len = str ? strlen(str) : 0; + return rv + uint32_size(len) + len; + } + case PROTOBUF_C_TYPE_BYTES: { + size_t len = ((const ProtobufCBinaryData *) member)->len; + return rv + uint32_size(len) + len; + } + case PROTOBUF_C_TYPE_MESSAGE: { + const ProtobufCMessage *msg = *(ProtobufCMessage * const *) member; + size_t subrv = msg ? protobuf_c_message_get_packed_size(msg) : 0; + return rv + uint32_size(subrv) + subrv; + } + } + PROTOBUF_C__ASSERT_NOT_REACHED(); + return 0; +} + +/** + * Calculate the serialized size of a single optional message field, including + * the space needed by the preceding tag. Returns 0 if the optional field isn't + * set. + * + * \param field + * Field descriptor for member. + * \param has + * True if the field exists, false if not. + * \param member + * Field to encode. + * \return + * Number of bytes required. + */ +static size_t +optional_field_get_packed_size(const ProtobufCFieldDescriptor *field, + const protobuf_c_boolean *has, + const void *member) +{ + if (field->type == PROTOBUF_C_TYPE_MESSAGE || + field->type == PROTOBUF_C_TYPE_STRING) + { + const void *ptr = *(const void * const *) member; + if (ptr == NULL || ptr == field->default_value) + return 0; + } else { + if (!*has) + return 0; + } + return required_field_get_packed_size(field, member); +} + +/** + * Calculate the serialized size of repeated message fields, which may consist + * of any number of values (including 0). Includes the space needed by the + * preceding tags (as needed). + * + * \param field + * Field descriptor for member. + * \param count + * Number of repeated field members. + * \param member + * Field to encode. + * \return + * Number of bytes required. + */ +static size_t +repeated_field_get_packed_size(const ProtobufCFieldDescriptor *field, + size_t count, const void *member) +{ + size_t header_size; + size_t rv = 0; + unsigned i; + void *array = *(void * const *) member; + + if (count == 0) + return 0; + header_size = get_tag_size(field->id); + if (0 == (field->flags & PROTOBUF_C_FIELD_FLAG_PACKED)) + header_size *= count; + + switch (field->type) { + case PROTOBUF_C_TYPE_SINT32: + for (i = 0; i < count; i++) + rv += sint32_size(((int32_t *) array)[i]); + break; + case PROTOBUF_C_TYPE_INT32: + for (i = 0; i < count; i++) + rv += int32_size(((uint32_t *) array)[i]); + break; + case PROTOBUF_C_TYPE_UINT32: + case PROTOBUF_C_TYPE_ENUM: + for (i = 0; i < count; i++) + rv += uint32_size(((uint32_t *) array)[i]); + break; + case PROTOBUF_C_TYPE_SINT64: + for (i = 0; i < count; i++) + rv += sint64_size(((int64_t *) array)[i]); + break; + case PROTOBUF_C_TYPE_INT64: + case PROTOBUF_C_TYPE_UINT64: + for (i = 0; i < count; i++) + rv += uint64_size(((uint64_t *) array)[i]); + break; + case PROTOBUF_C_TYPE_SFIXED32: + case PROTOBUF_C_TYPE_FIXED32: + case PROTOBUF_C_TYPE_FLOAT: + rv += 4 * count; + break; + case PROTOBUF_C_TYPE_SFIXED64: + case PROTOBUF_C_TYPE_FIXED64: + case PROTOBUF_C_TYPE_DOUBLE: + rv += 8 * count; + break; + case PROTOBUF_C_TYPE_BOOL: + rv += count; + break; + case PROTOBUF_C_TYPE_STRING: + for (i = 0; i < count; i++) { + size_t len = strlen(((char **) array)[i]); + rv += uint32_size(len) + len; + } + break; + case PROTOBUF_C_TYPE_BYTES: + for (i = 0; i < count; i++) { + size_t len = ((ProtobufCBinaryData *) array)[i].len; + rv += uint32_size(len) + len; + } + break; + case PROTOBUF_C_TYPE_MESSAGE: + for (i = 0; i < count; i++) { + size_t len = protobuf_c_message_get_packed_size( + ((ProtobufCMessage **) array)[i]); + rv += uint32_size(len) + len; + } + break; + } + + if (0 != (field->flags & PROTOBUF_C_FIELD_FLAG_PACKED)) + header_size += uint32_size(rv); + return header_size + rv; +} + +/** + * Calculate the serialized size of an unknown field, i.e. one that is passed + * through mostly uninterpreted. This is required for forward compatibility if + * new fields are added to the message descriptor. + * + * \param field + * Unknown field type. + * \return + * Number of bytes required. + */ +static inline size_t +unknown_field_get_packed_size(const ProtobufCMessageUnknownField *field) +{ + return get_tag_size(field->tag) + field->len; +} + +/**@}*/ + +/* + * Calculate the serialized size of the message. + */ +size_t protobuf_c_message_get_packed_size(const ProtobufCMessage *message) +{ + unsigned i; + size_t rv = 0; + + ASSERT_IS_MESSAGE(message); + for (i = 0; i < message->descriptor->n_fields; i++) { + const ProtobufCFieldDescriptor *field = + message->descriptor->fields + i; + const void *member = + ((const char *) message) + field->offset; + const void *qmember = + ((const char *) message) + field->quantifier_offset; + + if (field->label == PROTOBUF_C_LABEL_REQUIRED) { + rv += required_field_get_packed_size(field, member); + } else if (field->label == PROTOBUF_C_LABEL_OPTIONAL) { + rv += optional_field_get_packed_size(field, qmember, member); + } else { + rv += repeated_field_get_packed_size( + field, + *(const size_t *) qmember, + member + ); + } + } + for (i = 0; i < message->n_unknown_fields; i++) + rv += unknown_field_get_packed_size(&message->unknown_fields[i]); + return rv; +} + +/** + * \defgroup pack protobuf_c_message_pack() implementation + * + * Routines mainly used by protobuf_c_message_pack(). + * + * \ingroup internal + * @{ + */ + +/** + * Pack an unsigned 32-bit integer in base-128 varint encoding and return the + * number of bytes written, which must be 5 or less. + * + * \param value + * Value to encode. + * \param[out] out + * Packed value. + * \return + * Number of bytes written to `out`. + */ +static inline size_t +uint32_pack(uint32_t value, uint8_t *out) +{ + unsigned rv = 0; + + if (value >= 0x80) { + out[rv++] = value | 0x80; + value >>= 7; + if (value >= 0x80) { + out[rv++] = value | 0x80; + value >>= 7; + if (value >= 0x80) { + out[rv++] = value | 0x80; + value >>= 7; + if (value >= 0x80) { + out[rv++] = value | 0x80; + value >>= 7; + } + } + } + } + /* assert: value<128 */ + out[rv++] = value; + return rv; +} + +/** + * Pack a signed 32-bit integer and return the number of bytes written. + * Negative numbers are encoded as two's complement 64-bit integers. + * + * \param value + * Value to encode. + * \param[out] out + * Packed value. + * \return + * Number of bytes written to `out`. + */ +static inline size_t +int32_pack(int32_t value, uint8_t *out) +{ + if (value < 0) { + out[0] = value | 0x80; + out[1] = (value >> 7) | 0x80; + out[2] = (value >> 14) | 0x80; + out[3] = (value >> 21) | 0x80; + out[4] = (value >> 28) | 0x80; + out[5] = out[6] = out[7] = out[8] = 0xff; + out[9] = 0x01; + return 10; + } else { + return uint32_pack(value, out); + } +} + +/** + * Pack a signed 32-bit integer using ZigZag encoding and return the number of + * bytes written. + * + * \param value + * Value to encode. + * \param[out] out + * Packed value. + * \return + * Number of bytes written to `out`. + */ +static inline size_t +sint32_pack(int32_t value, uint8_t *out) +{ + return uint32_pack(zigzag32(value), out); +} + +/** + * Pack a 64-bit unsigned integer using base-128 varint encoding and return the + * number of bytes written. + * + * \param value + * Value to encode. + * \param[out] out + * Packed value. + * \return + * Number of bytes written to `out`. + */ +static size_t +uint64_pack(uint64_t value, uint8_t *out) +{ + uint32_t hi = (uint32_t) (value >> 32); + uint32_t lo = (uint32_t) value; + unsigned rv; + + if (hi == 0) + return uint32_pack((uint32_t) lo, out); + out[0] = (lo) | 0x80; + out[1] = (lo >> 7) | 0x80; + out[2] = (lo >> 14) | 0x80; + out[3] = (lo >> 21) | 0x80; + if (hi < 8) { + out[4] = (hi << 4) | (lo >> 28); + return 5; + } else { + out[4] = ((hi & 7) << 4) | (lo >> 28) | 0x80; + hi >>= 3; + } + rv = 5; + while (hi >= 128) { + out[rv++] = hi | 0x80; + hi >>= 7; + } + out[rv++] = hi; + return rv; +} + +/** + * Pack a 64-bit signed integer in ZigZag encoding and return the number of + * bytes written. + * + * \param value + * Value to encode. + * \param[out] out + * Packed value. + * \return + * Number of bytes written to `out`. + */ +static inline size_t +sint64_pack(int64_t value, uint8_t *out) +{ + return uint64_pack(zigzag64(value), out); +} + +/** + * Pack a 32-bit quantity in little-endian byte order. Used for protobuf wire + * types fixed32, sfixed32, float. Similar to "htole32". + * + * \param value + * Value to encode. + * \param[out] out + * Packed value. + * \return + * Number of bytes written to `out`. + */ +static inline size_t +fixed32_pack(uint32_t value, void *out) +{ +#if !defined(WORDS_BIGENDIAN) + memcpy(out, &value, 4); +#else + uint8_t *buf = out; + + buf[0] = value; + buf[1] = value >> 8; + buf[2] = value >> 16; + buf[3] = value >> 24; +#endif + return 4; +} + +/** + * Pack a 64-bit quantity in little-endian byte order. Used for protobuf wire + * types fixed64, sfixed64, double. Similar to "htole64". + * + * \todo The big-endian impl is really only good for 32-bit machines, a 64-bit + * version would be appreciated, plus a way to decide to use 64-bit math where + * convenient. + * + * \param value + * Value to encode. + * \param[out] out + * Packed value. + * \return + * Number of bytes written to `out`. + */ +static inline size_t +fixed64_pack(uint64_t value, void *out) +{ +#if !defined(WORDS_BIGENDIAN) + memcpy(out, &value, 8); +#else + fixed32_pack(value, out); + fixed32_pack(value >> 32, ((char *) out) + 4); +#endif + return 8; +} + +/** + * Pack a boolean value as an integer and return the number of bytes written. + * + * \todo Perhaps on some platforms *out = !!value would be a better impl, b/c + * that is idiomatic C++ in some STL implementations. + * + * \param value + * Value to encode. + * \param[out] out + * Packed value. + * \return + * Number of bytes written to `out`. + */ +static inline size_t +boolean_pack(protobuf_c_boolean value, uint8_t *out) +{ + *out = value ? TRUE : FALSE; + return 1; +} + +/** + * Pack a NUL-terminated C string and return the number of bytes written. The + * output includes a length delimiter. + * + * The NULL pointer is treated as an empty string. This isn't really necessary, + * but it allows people to leave required strings blank. (See Issue #13 in the + * bug tracker for a little more explanation). + * + * \param str + * String to encode. + * \param[out] out + * Packed value. + * \return + * Number of bytes written to `out`. + */ +static inline size_t +string_pack(const char *str, uint8_t *out) +{ + if (str == NULL) { + out[0] = 0; + return 1; + } else { + size_t len = strlen(str); + size_t rv = uint32_pack(len, out); + memcpy(out + rv, str, len); + return rv + len; + } +} + +/** + * Pack a ProtobufCBinaryData and return the number of bytes written. The output + * includes a length delimiter. + * + * \param bd + * ProtobufCBinaryData to encode. + * \param[out] out + * Packed value. + * \return + * Number of bytes written to `out`. + */ +static inline size_t +binary_data_pack(const ProtobufCBinaryData *bd, uint8_t *out) +{ + size_t len = bd->len; + size_t rv = uint32_pack(len, out); + memcpy(out + rv, bd->data, len); + return rv + len; +} + +/** + * Pack a ProtobufCMessage and return the number of bytes written. The output + * includes a length delimiter. + * + * \param message + * ProtobufCMessage object to pack. + * \param[out] out + * Packed message. + * \return + * Number of bytes written to `out`. + */ +static inline size_t +prefixed_message_pack(const ProtobufCMessage *message, uint8_t *out) +{ + if (message == NULL) { + out[0] = 0; + return 1; + } else { + size_t rv = protobuf_c_message_pack(message, out + 1); + uint32_t rv_packed_size = uint32_size(rv); + if (rv_packed_size != 1) + memmove(out + rv_packed_size, out + 1, rv); + return uint32_pack(rv, out) + rv; + } +} + +/** + * Pack a field tag. + * + * Wire-type will be added in required_field_pack(). + * + * \todo Just call uint64_pack on 64-bit platforms. + * + * \param id + * Tag value to encode. + * \param[out] out + * Packed value. + * \return + * Number of bytes written to `out`. + */ +static size_t +tag_pack(uint32_t id, uint8_t *out) +{ + if (id < (1 << (32 - 3))) + return uint32_pack(id << 3, out); + else + return uint64_pack(((uint64_t) id) << 3, out); +} + +/** + * Pack a required field and return the number of bytes written. + * + * \param field + * Field descriptor. + * \param member + * The field member. + * \param[out] out + * Packed value. + * \return + * Number of bytes written to `out`. + */ +static size_t +required_field_pack(const ProtobufCFieldDescriptor *field, + const void *member, uint8_t *out) +{ + size_t rv = tag_pack(field->id, out); + + switch (field->type) { + case PROTOBUF_C_TYPE_SINT32: + out[0] |= PROTOBUF_C_WIRE_TYPE_VARINT; + return rv + sint32_pack(*(const int32_t *) member, out + rv); + case PROTOBUF_C_TYPE_INT32: + out[0] |= PROTOBUF_C_WIRE_TYPE_VARINT; + return rv + int32_pack(*(const uint32_t *) member, out + rv); + case PROTOBUF_C_TYPE_UINT32: + case PROTOBUF_C_TYPE_ENUM: + out[0] |= PROTOBUF_C_WIRE_TYPE_VARINT; + return rv + uint32_pack(*(const uint32_t *) member, out + rv); + case PROTOBUF_C_TYPE_SINT64: + out[0] |= PROTOBUF_C_WIRE_TYPE_VARINT; + return rv + sint64_pack(*(const int64_t *) member, out + rv); + case PROTOBUF_C_TYPE_INT64: + case PROTOBUF_C_TYPE_UINT64: + out[0] |= PROTOBUF_C_WIRE_TYPE_VARINT; + return rv + uint64_pack(*(const uint64_t *) member, out + rv); + case PROTOBUF_C_TYPE_SFIXED32: + case PROTOBUF_C_TYPE_FIXED32: + case PROTOBUF_C_TYPE_FLOAT: + out[0] |= PROTOBUF_C_WIRE_TYPE_32BIT; + return rv + fixed32_pack(*(const uint32_t *) member, out + rv); + case PROTOBUF_C_TYPE_SFIXED64: + case PROTOBUF_C_TYPE_FIXED64: + case PROTOBUF_C_TYPE_DOUBLE: + out[0] |= PROTOBUF_C_WIRE_TYPE_64BIT; + return rv + fixed64_pack(*(const uint64_t *) member, out + rv); + case PROTOBUF_C_TYPE_BOOL: + out[0] |= PROTOBUF_C_WIRE_TYPE_VARINT; + return rv + boolean_pack(*(const protobuf_c_boolean *) member, out + rv); + case PROTOBUF_C_TYPE_STRING: + out[0] |= PROTOBUF_C_WIRE_TYPE_LENGTH_PREFIXED; + return rv + string_pack(*(char *const *) member, out + rv); + case PROTOBUF_C_TYPE_BYTES: + out[0] |= PROTOBUF_C_WIRE_TYPE_LENGTH_PREFIXED; + return rv + binary_data_pack((const ProtobufCBinaryData *) member, out + rv); + case PROTOBUF_C_TYPE_MESSAGE: + out[0] |= PROTOBUF_C_WIRE_TYPE_LENGTH_PREFIXED; + return rv + prefixed_message_pack(*(ProtobufCMessage * const *) member, out + rv); + } + PROTOBUF_C__ASSERT_NOT_REACHED(); + return 0; +} + +/** + * Pack an optional field and return the number of bytes written. + * + * \param field + * Field descriptor. + * \param has + * Whether the field is set. + * \param member + * The field member. + * \param[out] out + * Packed value. + * \return + * Number of bytes written to `out`. + */ +static size_t +optional_field_pack(const ProtobufCFieldDescriptor *field, + const protobuf_c_boolean *has, + const void *member, uint8_t *out) +{ + if (field->type == PROTOBUF_C_TYPE_MESSAGE || + field->type == PROTOBUF_C_TYPE_STRING) + { + const void *ptr = *(const void * const *) member; + if (ptr == NULL || ptr == field->default_value) + return 0; + } else { + if (!*has) + return 0; + } + return required_field_pack(field, member, out); +} + +/** + * Given a field type, return the in-memory size. + * + * \todo Implement as a table lookup. + * + * \param type + * Field type. + * \return + * Size of the field. + */ +static inline size_t +sizeof_elt_in_repeated_array(ProtobufCType type) +{ + switch (type) { + case PROTOBUF_C_TYPE_SINT32: + case PROTOBUF_C_TYPE_INT32: + case PROTOBUF_C_TYPE_UINT32: + case PROTOBUF_C_TYPE_SFIXED32: + case PROTOBUF_C_TYPE_FIXED32: + case PROTOBUF_C_TYPE_FLOAT: + case PROTOBUF_C_TYPE_ENUM: + return 4; + case PROTOBUF_C_TYPE_SINT64: + case PROTOBUF_C_TYPE_INT64: + case PROTOBUF_C_TYPE_UINT64: + case PROTOBUF_C_TYPE_SFIXED64: + case PROTOBUF_C_TYPE_FIXED64: + case PROTOBUF_C_TYPE_DOUBLE: + return 8; + case PROTOBUF_C_TYPE_BOOL: + return sizeof(protobuf_c_boolean); + case PROTOBUF_C_TYPE_STRING: + case PROTOBUF_C_TYPE_MESSAGE: + return sizeof(void *); + case PROTOBUF_C_TYPE_BYTES: + return sizeof(ProtobufCBinaryData); + } + PROTOBUF_C__ASSERT_NOT_REACHED(); + return 0; +} + +/** + * Pack an array of 32-bit quantities. + * + * \param[out] out + * Destination. + * \param[in] in + * Source. + * \param[in] n + * Number of elements in the source array. + */ +static void +copy_to_little_endian_32(void *out, const void *in, const unsigned n) +{ +#if !defined(WORDS_BIGENDIAN) + memcpy(out, in, n * 4); +#else + unsigned i; + const uint32_t *ini = in; + for (i = 0; i < n; i++) + fixed32_pack(ini[i], (uint32_t *) out + i); +#endif +} + +/** + * Pack an array of 64-bit quantities. + * + * \param[out] out + * Destination. + * \param[in] in + * Source. + * \param[in] n + * Number of elements in the source array. + */ +static void +copy_to_little_endian_64(void *out, const void *in, const unsigned n) +{ +#if !defined(WORDS_BIGENDIAN) + memcpy(out, in, n * 8); +#else + unsigned i; + const uint64_t *ini = in; + for (i = 0; i < n; i++) + fixed64_pack(ini[i], (uint64_t *) out + i); +#endif +} + +/** + * Get the minimum number of bytes required to pack a field value of a + * particular type. + * + * \param type + * Field type. + * \return + * Number of bytes. + */ +static unsigned +get_type_min_size(ProtobufCType type) +{ + if (type == PROTOBUF_C_TYPE_SFIXED32 || + type == PROTOBUF_C_TYPE_FIXED32 || + type == PROTOBUF_C_TYPE_FLOAT) + { + return 4; + } + if (type == PROTOBUF_C_TYPE_SFIXED64 || + type == PROTOBUF_C_TYPE_FIXED64 || + type == PROTOBUF_C_TYPE_DOUBLE) + { + return 8; + } + return 1; +} + +/** + * Packs the elements of a repeated field and returns the serialised field and + * its length. + * + * \param field + * Field descriptor. + * \param count + * Number of elements in the repeated field array. + * \param member + * Pointer to the elements for this repeated field. + * \param[out] out + * Serialised representation of the repeated field. + * \return + * Number of bytes serialised to `out`. + */ +static size_t +repeated_field_pack(const ProtobufCFieldDescriptor *field, + size_t count, const void *member, uint8_t *out) +{ + void *array = *(void * const *) member; + unsigned i; + + if (0 != (field->flags & PROTOBUF_C_FIELD_FLAG_PACKED)) { + unsigned header_len; + unsigned len_start; + unsigned min_length; + unsigned payload_len; + unsigned length_size_min; + unsigned actual_length_size; + uint8_t *payload_at; + + if (count == 0) + return 0; + header_len = tag_pack(field->id, out); + out[0] |= PROTOBUF_C_WIRE_TYPE_LENGTH_PREFIXED; + len_start = header_len; + min_length = get_type_min_size(field->type) * count; + length_size_min = uint32_size(min_length); + header_len += length_size_min; + payload_at = out + header_len; + + switch (field->type) { + case PROTOBUF_C_TYPE_SFIXED32: + case PROTOBUF_C_TYPE_FIXED32: + case PROTOBUF_C_TYPE_FLOAT: + copy_to_little_endian_32(payload_at, array, count); + payload_at += count * 4; + break; + case PROTOBUF_C_TYPE_SFIXED64: + case PROTOBUF_C_TYPE_FIXED64: + case PROTOBUF_C_TYPE_DOUBLE: + copy_to_little_endian_64(payload_at, array, count); + payload_at += count * 8; + break; + case PROTOBUF_C_TYPE_INT32: { + const int32_t *arr = (const int32_t *) array; + for (i = 0; i < count; i++) + payload_at += int32_pack(arr[i], payload_at); + break; + } + case PROTOBUF_C_TYPE_SINT32: { + const int32_t *arr = (const int32_t *) array; + for (i = 0; i < count; i++) + payload_at += sint32_pack(arr[i], payload_at); + break; + } + case PROTOBUF_C_TYPE_SINT64: { + const int64_t *arr = (const int64_t *) array; + for (i = 0; i < count; i++) + payload_at += sint64_pack(arr[i], payload_at); + break; + } + case PROTOBUF_C_TYPE_ENUM: + case PROTOBUF_C_TYPE_UINT32: { + const uint32_t *arr = (const uint32_t *) array; + for (i = 0; i < count; i++) + payload_at += uint32_pack(arr[i], payload_at); + break; + } + case PROTOBUF_C_TYPE_INT64: + case PROTOBUF_C_TYPE_UINT64: { + const uint64_t *arr = (const uint64_t *) array; + for (i = 0; i < count; i++) + payload_at += uint64_pack(arr[i], payload_at); + break; + } + case PROTOBUF_C_TYPE_BOOL: { + const protobuf_c_boolean *arr = (const protobuf_c_boolean *) array; + for (i = 0; i < count; i++) + payload_at += boolean_pack(arr[i], payload_at); + break; + } + default: + PROTOBUF_C__ASSERT_NOT_REACHED(); + } + + payload_len = payload_at - (out + header_len); + actual_length_size = uint32_size(payload_len); + if (length_size_min != actual_length_size) { + assert(actual_length_size == length_size_min + 1); + memmove(out + header_len + 1, out + header_len, + payload_len); + header_len++; + } + uint32_pack(payload_len, out + len_start); + return header_len + payload_len; + } else { + /* not "packed" cased */ + /* CONSIDER: optimize this case a bit (by putting the loop inside the switch) */ + size_t rv = 0; + unsigned siz = sizeof_elt_in_repeated_array(field->type); + + for (i = 0; i < count; i++) { + rv += required_field_pack(field, array, out + rv); + array = (char *)array + siz; + } + return rv; + } +} + +static size_t +unknown_field_pack(const ProtobufCMessageUnknownField *field, uint8_t *out) +{ + size_t rv = tag_pack(field->tag, out); + out[0] |= field->wire_type; + memcpy(out + rv, field->data, field->len); + return rv + field->len; +} + +/**@}*/ + +size_t +protobuf_c_message_pack(const ProtobufCMessage *message, uint8_t *out) +{ + unsigned i; + size_t rv = 0; + + ASSERT_IS_MESSAGE(message); + for (i = 0; i < message->descriptor->n_fields; i++) { + const ProtobufCFieldDescriptor *field = + message->descriptor->fields + i; + const void *member = ((const char *) message) + field->offset; + + /* + * It doesn't hurt to compute qmember (a pointer to the + * quantifier field of the structure), but the pointer is only + * valid if the field is: + * - a repeated field, or + * - an optional field that isn't a pointer type + * (Meaning: not a message or a string). + */ + const void *qmember = + ((const char *) message) + field->quantifier_offset; + + if (field->label == PROTOBUF_C_LABEL_REQUIRED) { + rv += required_field_pack(field, member, out + rv); + } else if (field->label == PROTOBUF_C_LABEL_OPTIONAL) { + /* + * Note that qmember is bogus for strings and messages, + * but it isn't used. + */ + rv += optional_field_pack(field, qmember, member, out + rv); + } else { + rv += repeated_field_pack(field, *(const size_t *) qmember, + member, out + rv); + } + } + for (i = 0; i < message->n_unknown_fields; i++) + rv += unknown_field_pack(&message->unknown_fields[i], out + rv); + return rv; +} + +/** + * \defgroup packbuf protobuf_c_message_pack_to_buffer() implementation + * + * Routines mainly used by protobuf_c_message_pack_to_buffer(). + * + * \ingroup internal + * @{ + */ + +/** + * Pack a required field to a virtual buffer. + * + * \param field + * Field descriptor. + * \param member + * The element to be packed. + * \param[out] buffer + * Virtual buffer to append data to. + * \return + * Number of bytes packed. + */ +static size_t +required_field_pack_to_buffer(const ProtobufCFieldDescriptor *field, + const void *member, ProtobufCBuffer *buffer) +{ + size_t rv; + uint8_t scratch[MAX_UINT64_ENCODED_SIZE * 2]; + + rv = tag_pack(field->id, scratch); + switch (field->type) { + case PROTOBUF_C_TYPE_SINT32: + scratch[0] |= PROTOBUF_C_WIRE_TYPE_VARINT; + rv += sint32_pack(*(const int32_t *) member, scratch + rv); + buffer->append(buffer, rv, scratch); + break; + case PROTOBUF_C_TYPE_INT32: + scratch[0] |= PROTOBUF_C_WIRE_TYPE_VARINT; + rv += int32_pack(*(const uint32_t *) member, scratch + rv); + buffer->append(buffer, rv, scratch); + break; + case PROTOBUF_C_TYPE_UINT32: + case PROTOBUF_C_TYPE_ENUM: + scratch[0] |= PROTOBUF_C_WIRE_TYPE_VARINT; + rv += uint32_pack(*(const uint32_t *) member, scratch + rv); + buffer->append(buffer, rv, scratch); + break; + case PROTOBUF_C_TYPE_SINT64: + scratch[0] |= PROTOBUF_C_WIRE_TYPE_VARINT; + rv += sint64_pack(*(const int64_t *) member, scratch + rv); + buffer->append(buffer, rv, scratch); + break; + case PROTOBUF_C_TYPE_INT64: + case PROTOBUF_C_TYPE_UINT64: + scratch[0] |= PROTOBUF_C_WIRE_TYPE_VARINT; + rv += uint64_pack(*(const uint64_t *) member, scratch + rv); + buffer->append(buffer, rv, scratch); + break; + case PROTOBUF_C_TYPE_SFIXED32: + case PROTOBUF_C_TYPE_FIXED32: + case PROTOBUF_C_TYPE_FLOAT: + scratch[0] |= PROTOBUF_C_WIRE_TYPE_32BIT; + rv += fixed32_pack(*(const uint32_t *) member, scratch + rv); + buffer->append(buffer, rv, scratch); + break; + case PROTOBUF_C_TYPE_SFIXED64: + case PROTOBUF_C_TYPE_FIXED64: + case PROTOBUF_C_TYPE_DOUBLE: + scratch[0] |= PROTOBUF_C_WIRE_TYPE_64BIT; + rv += fixed64_pack(*(const uint64_t *) member, scratch + rv); + buffer->append(buffer, rv, scratch); + break; + case PROTOBUF_C_TYPE_BOOL: + scratch[0] |= PROTOBUF_C_WIRE_TYPE_VARINT; + rv += boolean_pack(*(const protobuf_c_boolean *) member, scratch + rv); + buffer->append(buffer, rv, scratch); + break; + case PROTOBUF_C_TYPE_STRING: { + const char *str = *(char *const *) member; + size_t sublen = str ? strlen(str) : 0; + + scratch[0] |= PROTOBUF_C_WIRE_TYPE_LENGTH_PREFIXED; + rv += uint32_pack(sublen, scratch + rv); + buffer->append(buffer, rv, scratch); + buffer->append(buffer, sublen, (const uint8_t *) str); + rv += sublen; + break; + } + case PROTOBUF_C_TYPE_BYTES: { + const ProtobufCBinaryData *bd = ((const ProtobufCBinaryData *) member); + size_t sublen = bd->len; + + scratch[0] |= PROTOBUF_C_WIRE_TYPE_LENGTH_PREFIXED; + rv += uint32_pack(sublen, scratch + rv); + buffer->append(buffer, rv, scratch); + buffer->append(buffer, sublen, bd->data); + rv += sublen; + break; + } + case PROTOBUF_C_TYPE_MESSAGE: { + uint8_t simple_buffer_scratch[256]; + size_t sublen; + const ProtobufCMessage *msg = *(ProtobufCMessage * const *) member; + ProtobufCBufferSimple simple_buffer = + PROTOBUF_C_BUFFER_SIMPLE_INIT(simple_buffer_scratch); + + scratch[0] |= PROTOBUF_C_WIRE_TYPE_LENGTH_PREFIXED; + if (msg == NULL) + sublen = 0; + else + sublen = protobuf_c_message_pack_to_buffer(msg, &simple_buffer.base); + rv += uint32_pack(sublen, scratch + rv); + buffer->append(buffer, rv, scratch); + buffer->append(buffer, sublen, simple_buffer.data); + rv += sublen; + PROTOBUF_C_BUFFER_SIMPLE_CLEAR(&simple_buffer); + break; + } + default: + PROTOBUF_C__ASSERT_NOT_REACHED(); + } + return rv; +} + +/** + * Pack an optional field to a buffer. + * + * \param field + * Field descriptor. + * \param has + * Whether the field is set. + * \param member + * The element to be packed. + * \param[out] buffer + * Virtual buffer to append data to. + * \return + * Number of bytes serialised to `buffer`. + */ +static size_t +optional_field_pack_to_buffer(const ProtobufCFieldDescriptor *field, + const protobuf_c_boolean *has, + const void *member, ProtobufCBuffer *buffer) +{ + if (field->type == PROTOBUF_C_TYPE_MESSAGE || + field->type == PROTOBUF_C_TYPE_STRING) + { + const void *ptr = *(const void *const *) member; + if (ptr == NULL || ptr == field->default_value) + return 0; + } else { + if (!*has) + return 0; + } + return required_field_pack_to_buffer(field, member, buffer); +} + +/** + * Get the packed size of an array of same field type. + * + * \param field + * Field descriptor. + * \param count + * Number of elements of this type. + * \param array + * The elements to get the size of. + * \return + * Number of bytes required. + */ +static size_t +get_packed_payload_length(const ProtobufCFieldDescriptor *field, + unsigned count, const void *array) +{ + unsigned rv = 0; + unsigned i; + + switch (field->type) { + case PROTOBUF_C_TYPE_SFIXED32: + case PROTOBUF_C_TYPE_FIXED32: + case PROTOBUF_C_TYPE_FLOAT: + return count * 4; + case PROTOBUF_C_TYPE_SFIXED64: + case PROTOBUF_C_TYPE_FIXED64: + case PROTOBUF_C_TYPE_DOUBLE: + return count * 8; + case PROTOBUF_C_TYPE_INT32: { + const int32_t *arr = (const int32_t *) array; + for (i = 0; i < count; i++) + rv += int32_size(arr[i]); + break; + } + case PROTOBUF_C_TYPE_SINT32: { + const int32_t *arr = (const int32_t *) array; + for (i = 0; i < count; i++) + rv += sint32_size(arr[i]); + break; + } + case PROTOBUF_C_TYPE_ENUM: + case PROTOBUF_C_TYPE_UINT32: { + const uint32_t *arr = (const uint32_t *) array; + for (i = 0; i < count; i++) + rv += uint32_size(arr[i]); + break; + } + case PROTOBUF_C_TYPE_SINT64: { + const int64_t *arr = (const int64_t *) array; + for (i = 0; i < count; i++) + rv += sint64_size(arr[i]); + break; + } + case PROTOBUF_C_TYPE_INT64: + case PROTOBUF_C_TYPE_UINT64: { + const uint64_t *arr = (const uint64_t *) array; + for (i = 0; i < count; i++) + rv += uint64_size(arr[i]); + break; + } + case PROTOBUF_C_TYPE_BOOL: + return count; + default: + PROTOBUF_C__ASSERT_NOT_REACHED(); + } + return rv; +} + +/** + * Pack an array of same field type to a virtual buffer. + * + * \param field + * Field descriptor. + * \param count + * Number of elements of this type. + * \param array + * The elements to get the size of. + * \param[out] buffer + * Virtual buffer to append data to. + * \return + * Number of bytes packed. + */ +static size_t +pack_buffer_packed_payload(const ProtobufCFieldDescriptor *field, + unsigned count, const void *array, + ProtobufCBuffer *buffer) +{ + uint8_t scratch[16]; + size_t rv = 0; + unsigned i; + + switch (field->type) { + case PROTOBUF_C_TYPE_SFIXED32: + case PROTOBUF_C_TYPE_FIXED32: + case PROTOBUF_C_TYPE_FLOAT: +#if !defined(WORDS_BIGENDIAN) + rv = count * 4; + goto no_packing_needed; +#else + for (i = 0; i < count; i++) { + unsigned len = fixed32_pack(((uint32_t *) array)[i], scratch); + buffer->append(buffer, len, scratch); + rv += len; + } + break; +#endif + case PROTOBUF_C_TYPE_SFIXED64: + case PROTOBUF_C_TYPE_FIXED64: + case PROTOBUF_C_TYPE_DOUBLE: +#if !defined(WORDS_BIGENDIAN) + rv = count * 8; + goto no_packing_needed; +#else + for (i = 0; i < count; i++) { + unsigned len = fixed64_pack(((uint64_t *) array)[i], scratch); + buffer->append(buffer, len, scratch); + rv += len; + } + break; +#endif + case PROTOBUF_C_TYPE_INT32: + for (i = 0; i < count; i++) { + unsigned len = int32_pack(((int32_t *) array)[i], scratch); + buffer->append(buffer, len, scratch); + rv += len; + } + break; + case PROTOBUF_C_TYPE_SINT32: + for (i = 0; i < count; i++) { + unsigned len = sint32_pack(((int32_t *) array)[i], scratch); + buffer->append(buffer, len, scratch); + rv += len; + } + break; + case PROTOBUF_C_TYPE_ENUM: + case PROTOBUF_C_TYPE_UINT32: + for (i = 0; i < count; i++) { + unsigned len = uint32_pack(((uint32_t *) array)[i], scratch); + buffer->append(buffer, len, scratch); + rv += len; + } + break; + case PROTOBUF_C_TYPE_SINT64: + for (i = 0; i < count; i++) { + unsigned len = sint64_pack(((int64_t *) array)[i], scratch); + buffer->append(buffer, len, scratch); + rv += len; + } + break; + case PROTOBUF_C_TYPE_INT64: + case PROTOBUF_C_TYPE_UINT64: + for (i = 0; i < count; i++) { + unsigned len = uint64_pack(((uint64_t *) array)[i], scratch); + buffer->append(buffer, len, scratch); + rv += len; + } + break; + case PROTOBUF_C_TYPE_BOOL: + for (i = 0; i < count; i++) { + unsigned len = boolean_pack(((protobuf_c_boolean *) array)[i], scratch); + buffer->append(buffer, len, scratch); + rv += len; + } + return count; + default: + PROTOBUF_C__ASSERT_NOT_REACHED(); + } + return rv; + +no_packing_needed: + buffer->append(buffer, rv, array); + return rv; +} + +static size_t +repeated_field_pack_to_buffer(const ProtobufCFieldDescriptor *field, + unsigned count, const void *member, + ProtobufCBuffer *buffer) +{ + char *array = *(char * const *) member; + + if (count == 0) + return 0; + if (0 != (field->flags & PROTOBUF_C_FIELD_FLAG_PACKED)) { + uint8_t scratch[MAX_UINT64_ENCODED_SIZE * 2]; + size_t rv = tag_pack(field->id, scratch); + size_t payload_len = get_packed_payload_length(field, count, array); + size_t tmp; + + scratch[0] |= PROTOBUF_C_WIRE_TYPE_LENGTH_PREFIXED; + rv += uint32_pack(payload_len, scratch + rv); + buffer->append(buffer, rv, scratch); + tmp = pack_buffer_packed_payload(field, count, array, buffer); + assert(tmp == payload_len); + return rv + payload_len; + } else { + size_t siz; + unsigned i; + /* CONSIDER: optimize this case a bit (by putting the loop inside the switch) */ + unsigned rv = 0; + + siz = sizeof_elt_in_repeated_array(field->type); + for (i = 0; i < count; i++) { + rv += required_field_pack_to_buffer(field, array, buffer); + array += siz; + } + return rv; + } +} + +static size_t +unknown_field_pack_to_buffer(const ProtobufCMessageUnknownField *field, + ProtobufCBuffer *buffer) +{ + uint8_t header[MAX_UINT64_ENCODED_SIZE]; + size_t rv = tag_pack(field->tag, header); + + header[0] |= field->wire_type; + buffer->append(buffer, rv, header); + buffer->append(buffer, field->len, field->data); + return rv + field->len; +} + +/**@}*/ + +size_t +protobuf_c_message_pack_to_buffer(const ProtobufCMessage *message, + ProtobufCBuffer *buffer) +{ + unsigned i; + size_t rv = 0; + + ASSERT_IS_MESSAGE(message); + for (i = 0; i < message->descriptor->n_fields; i++) { + const ProtobufCFieldDescriptor *field = + message->descriptor->fields + i; + const void *member = + ((const char *) message) + field->offset; + const void *qmember = + ((const char *) message) + field->quantifier_offset; + + if (field->label == PROTOBUF_C_LABEL_REQUIRED) { + rv += required_field_pack_to_buffer(field, member, buffer); + } else if (field->label == PROTOBUF_C_LABEL_OPTIONAL) { + rv += optional_field_pack_to_buffer( + field, + qmember, + member, + buffer + ); + } else { + rv += repeated_field_pack_to_buffer( + field, + *(const size_t *) qmember, + member, + buffer + ); + } + } + for (i = 0; i < message->n_unknown_fields; i++) + rv += unknown_field_pack_to_buffer(&message->unknown_fields[i], buffer); + + return rv; +} + +/** + * \defgroup unpack unpacking implementation + * + * Routines mainly used by the unpacking functions. + * + * \ingroup internal + * @{ + */ + +static inline int +int_range_lookup(unsigned n_ranges, const ProtobufCIntRange *ranges, int value) +{ + unsigned n; + unsigned start; + + if (n_ranges == 0) + return -1; + start = 0; + n = n_ranges; + while (n > 1) { + unsigned mid = start + n / 2; + + if (value < ranges[mid].start_value) { + n = mid - start; + } else if (value >= ranges[mid].start_value + + (int) (ranges[mid + 1].orig_index - + ranges[mid].orig_index)) + { + unsigned new_start = mid + 1; + n = start + n - new_start; + start = new_start; + } else + return (value - ranges[mid].start_value) + + ranges[mid].orig_index; + } + if (n > 0) { + unsigned start_orig_index = ranges[start].orig_index; + unsigned range_size = + ranges[start + 1].orig_index - start_orig_index; + + if (ranges[start].start_value <= value && + value < (int) (ranges[start].start_value + range_size)) + { + return (value - ranges[start].start_value) + + start_orig_index; + } + } + return -1; +} + +static size_t +parse_tag_and_wiretype(size_t len, + const uint8_t *data, + uint32_t *tag_out, + ProtobufCWireType *wiretype_out) +{ + unsigned max_rv = len > 5 ? 5 : len; + uint32_t tag = (data[0] & 0x7f) >> 3; + unsigned shift = 4; + unsigned rv; + + *wiretype_out = data[0] & 7; + if ((data[0] & 0x80) == 0) { + *tag_out = tag; + return 1; + } + for (rv = 1; rv < max_rv; rv++) { + if (data[rv] & 0x80) { + tag |= (data[rv] & 0x7f) << shift; + shift += 7; + } else { + tag |= data[rv] << shift; + *tag_out = tag; + return rv + 1; + } + } + return 0; /* error: bad header */ +} + +/* sizeof(ScannedMember) must be <= (1< len) { + PROTOBUF_C_UNPACK_ERROR(("data too short after length-prefix of %u", val)) + return 0; + } + return hdr_len + val; +} + +static size_t +max_b128_numbers(size_t len, const uint8_t *data) +{ + size_t rv = 0; + while (len--) + if ((*data++ & 0x80) == 0) + ++rv; + return rv; +} + +/**@}*/ + +/** + * Merge earlier message into a latter message. + * + * For numeric types and strings, if the same value appears multiple + * times, the parser accepts the last value it sees. For embedded + * message fields, the parser merges multiple instances of the same + * field. That is, all singular scalar fields in the latter instance + * replace those in the former, singular embedded messages are merged, + * and repeated fields are concatenated. + * + * The earlier message should be freed after calling this function, as + * some of its fields may have been reused and changed to their default + * values during the merge. + */ +static protobuf_c_boolean +merge_messages(ProtobufCMessage *earlier_msg, + ProtobufCMessage *latter_msg, + ProtobufCAllocator *allocator) +{ + unsigned i; + const ProtobufCFieldDescriptor *fields = + earlier_msg->descriptor->fields; + for (i = 0; i < latter_msg->descriptor->n_fields; i++) { + if (fields[i].label == PROTOBUF_C_LABEL_REPEATED) { + size_t *n_earlier = + STRUCT_MEMBER_PTR(size_t, earlier_msg, + fields[i].quantifier_offset); + uint8_t **p_earlier = + STRUCT_MEMBER_PTR(uint8_t *, earlier_msg, + fields[i].offset); + size_t *n_latter = + STRUCT_MEMBER_PTR(size_t, latter_msg, + fields[i].quantifier_offset); + uint8_t **p_latter = + STRUCT_MEMBER_PTR(uint8_t *, latter_msg, + fields[i].offset); + + if (*n_earlier > 0) { + if (*n_latter > 0) { + /* Concatenate the repeated field */ + size_t el_size = + sizeof_elt_in_repeated_array(fields[i].type); + uint8_t *new_field; + + new_field = do_alloc(allocator, + (*n_earlier + *n_latter) * el_size); + if (!new_field) + return FALSE; + + memcpy(new_field, *p_earlier, + *n_earlier * el_size); + memcpy(new_field + + *n_earlier * el_size, + *p_latter, + *n_latter * el_size); + + do_free(allocator, *p_latter); + do_free(allocator, *p_earlier); + *p_latter = new_field; + *n_latter = *n_earlier + *n_latter; + } else { + /* Zero copy the repeated field from the earlier message */ + *n_latter = *n_earlier; + *p_latter = *p_earlier; + } + /* Make sure the field does not get double freed */ + *n_earlier = 0; + *p_earlier = 0; + } + } else if (fields[i].type == PROTOBUF_C_TYPE_MESSAGE) { + ProtobufCMessage **em = + STRUCT_MEMBER_PTR(ProtobufCMessage *, + earlier_msg, + fields[i].offset); + ProtobufCMessage **lm = + STRUCT_MEMBER_PTR(ProtobufCMessage *, + latter_msg, + fields[i].offset); + if (*em != NULL) { + if (*lm != NULL) { + if (!merge_messages + (*em, *lm, allocator)) + return FALSE; + } else { + /* Zero copy the optional message */ + assert(fields[i].label == + PROTOBUF_C_LABEL_OPTIONAL); + *lm = *em; + *em = NULL; + } + } + } else if (fields[i].label == PROTOBUF_C_LABEL_OPTIONAL) { + size_t el_size = 0; + protobuf_c_boolean need_to_merge = FALSE; + void *earlier_elem = + STRUCT_MEMBER_P(earlier_msg, fields[i].offset); + void *latter_elem = + STRUCT_MEMBER_P(latter_msg, fields[i].offset); + const void *def_val = fields[i].default_value; + + switch (fields[i].type) { + case PROTOBUF_C_TYPE_BYTES: { + uint8_t *e_data, *l_data; + const ProtobufCBinaryData *d_bd; + + e_data = ((ProtobufCBinaryData *) earlier_elem)->data; + l_data = ((ProtobufCBinaryData *) latter_elem)->data; + d_bd = (ProtobufCBinaryData *) def_val; + + need_to_merge = + (e_data != NULL && + (d_bd != NULL && + e_data != d_bd->data)) && + (l_data == NULL || + (d_bd != NULL && + l_data == d_bd->data)); + break; + } + case PROTOBUF_C_TYPE_STRING: { + char *e_str, *l_str; + const char *d_str; + + el_size = sizeof(char *); + e_str = *(char **) earlier_elem; + l_str = *(char **) latter_elem; + d_str = def_val; + + need_to_merge = e_str != d_str && l_str == d_str; + break; + } + default: { + el_size = sizeof_elt_in_repeated_array(fields[i].type); + + need_to_merge = + STRUCT_MEMBER(protobuf_c_boolean, + earlier_msg, + fields[i].quantifier_offset) && + !STRUCT_MEMBER(protobuf_c_boolean, + latter_msg, + fields[i].quantifier_offset); + break; + } + } + + if (need_to_merge) { + memcpy(latter_elem, earlier_elem, el_size); + /* + * Reset the element from the old message to 0 + * to make sure earlier message deallocation + * doesn't corrupt zero-copied data in the new + * message, earlier message will be freed after + * this function is called anyway + */ + memset(earlier_elem, 0, el_size); + + if (fields[i].quantifier_offset != 0) { + /* Set the has field, if applicable */ + STRUCT_MEMBER(protobuf_c_boolean, + latter_msg, + fields[i]. + quantifier_offset) = TRUE; + STRUCT_MEMBER(protobuf_c_boolean, + earlier_msg, + fields[i]. + quantifier_offset) = FALSE; + } + } + } + } + return TRUE; +} + +/** + * Count packed elements. + * + * Given a raw slab of packed-repeated values, determine the number of + * elements. This function detects certain kinds of errors but not + * others; the remaining error checking is done by + * parse_packed_repeated_member(). + */ +static protobuf_c_boolean +count_packed_elements(ProtobufCType type, + size_t len, const uint8_t *data, size_t *count_out) +{ + switch (type) { + case PROTOBUF_C_TYPE_SFIXED32: + case PROTOBUF_C_TYPE_FIXED32: + case PROTOBUF_C_TYPE_FLOAT: + if (len % 4 != 0) { + PROTOBUF_C_UNPACK_ERROR(("length must be a multiple of 4 for fixed-length 32-bit types")) + return FALSE; + } + *count_out = len / 4; + return TRUE; + case PROTOBUF_C_TYPE_SFIXED64: + case PROTOBUF_C_TYPE_FIXED64: + case PROTOBUF_C_TYPE_DOUBLE: + if (len % 8 != 0) { + PROTOBUF_C_UNPACK_ERROR(("length must be a multiple of 8 for fixed-length 64-bit types")) + return FALSE; + } + *count_out = len / 8; + return TRUE; + case PROTOBUF_C_TYPE_INT32: + case PROTOBUF_C_TYPE_SINT32: + case PROTOBUF_C_TYPE_ENUM: + case PROTOBUF_C_TYPE_UINT32: + case PROTOBUF_C_TYPE_INT64: + case PROTOBUF_C_TYPE_SINT64: + case PROTOBUF_C_TYPE_UINT64: + *count_out = max_b128_numbers(len, data); + return TRUE; + case PROTOBUF_C_TYPE_BOOL: + *count_out = len; + return TRUE; + case PROTOBUF_C_TYPE_STRING: + case PROTOBUF_C_TYPE_BYTES: + case PROTOBUF_C_TYPE_MESSAGE: + default: + PROTOBUF_C_UNPACK_ERROR(("bad protobuf-c type %u for packed-repeated", type)) + return FALSE; + } +} + +static inline uint32_t +parse_uint32(unsigned len, const uint8_t *data) +{ + uint32_t rv = data[0] & 0x7f; + if (len > 1) { + rv |= ((uint32_t) (data[1] & 0x7f) << 7); + if (len > 2) { + rv |= ((uint32_t) (data[2] & 0x7f) << 14); + if (len > 3) { + rv |= ((uint32_t) (data[3] & 0x7f) << 21); + if (len > 4) + rv |= ((uint32_t) (data[4]) << 28); + } + } + } + return rv; +} + +static inline uint32_t +parse_int32(unsigned len, const uint8_t *data) +{ + return parse_uint32(len, data); +} + +static inline int32_t +unzigzag32(uint32_t v) +{ + if (v & 1) + return -(v >> 1) - 1; + else + return v >> 1; +} + +static inline uint32_t +parse_fixed_uint32(const uint8_t *data) +{ +#if !defined(WORDS_BIGENDIAN) + uint32_t t; + memcpy(&t, data, 4); + return t; +#else + return data[0] | + ((uint32_t) (data[1]) << 8) | + ((uint32_t) (data[2]) << 16) | + ((uint32_t) (data[3]) << 24); +#endif +} + +static uint64_t +parse_uint64(unsigned len, const uint8_t *data) +{ + unsigned shift, i; + uint64_t rv; + + if (len < 5) + return parse_uint32(len, data); + rv = ((uint64_t) (data[0] & 0x7f)) | + ((uint64_t) (data[1] & 0x7f) << 7) | + ((uint64_t) (data[2] & 0x7f) << 14) | + ((uint64_t) (data[3] & 0x7f) << 21); + shift = 28; + for (i = 4; i < len; i++) { + rv |= (((uint64_t) (data[i] & 0x7f)) << shift); + shift += 7; + } + return rv; +} + +static inline int64_t +unzigzag64(uint64_t v) +{ + if (v & 1) + return -(v >> 1) - 1; + else + return v >> 1; +} + +static inline uint64_t +parse_fixed_uint64(const uint8_t *data) +{ +#if !defined(WORDS_BIGENDIAN) + uint64_t t; + memcpy(&t, data, 8); + return t; +#else + return (uint64_t) parse_fixed_uint32(data) | + (((uint64_t) parse_fixed_uint32(data + 4)) << 32); +#endif +} + +static protobuf_c_boolean +parse_boolean(unsigned len, const uint8_t *data) +{ + unsigned i; + for (i = 0; i < len; i++) + if (data[i] & 0x7f) + return TRUE; + return FALSE; +} + +static protobuf_c_boolean +parse_required_member(ScannedMember *scanned_member, + void *member, + ProtobufCAllocator *allocator, + protobuf_c_boolean maybe_clear) +{ + unsigned len = scanned_member->len; + const uint8_t *data = scanned_member->data; + ProtobufCWireType wire_type = scanned_member->wire_type; + + switch (scanned_member->field->type) { + case PROTOBUF_C_TYPE_INT32: + if (wire_type != PROTOBUF_C_WIRE_TYPE_VARINT) + return FALSE; + *(uint32_t *) member = parse_int32(len, data); + return TRUE; + case PROTOBUF_C_TYPE_UINT32: + if (wire_type != PROTOBUF_C_WIRE_TYPE_VARINT) + return FALSE; + *(uint32_t *) member = parse_uint32(len, data); + return TRUE; + case PROTOBUF_C_TYPE_SINT32: + if (wire_type != PROTOBUF_C_WIRE_TYPE_VARINT) + return FALSE; + *(int32_t *) member = unzigzag32(parse_uint32(len, data)); + return TRUE; + case PROTOBUF_C_TYPE_SFIXED32: + case PROTOBUF_C_TYPE_FIXED32: + case PROTOBUF_C_TYPE_FLOAT: + if (wire_type != PROTOBUF_C_WIRE_TYPE_32BIT) + return FALSE; + *(uint32_t *) member = parse_fixed_uint32(data); + return TRUE; + case PROTOBUF_C_TYPE_INT64: + case PROTOBUF_C_TYPE_UINT64: + if (wire_type != PROTOBUF_C_WIRE_TYPE_VARINT) + return FALSE; + *(uint64_t *) member = parse_uint64(len, data); + return TRUE; + case PROTOBUF_C_TYPE_SINT64: + if (wire_type != PROTOBUF_C_WIRE_TYPE_VARINT) + return FALSE; + *(int64_t *) member = unzigzag64(parse_uint64(len, data)); + return TRUE; + case PROTOBUF_C_TYPE_SFIXED64: + case PROTOBUF_C_TYPE_FIXED64: + case PROTOBUF_C_TYPE_DOUBLE: + if (wire_type != PROTOBUF_C_WIRE_TYPE_64BIT) + return FALSE; + *(uint64_t *) member = parse_fixed_uint64(data); + return TRUE; + case PROTOBUF_C_TYPE_BOOL: + *(protobuf_c_boolean *) member = parse_boolean(len, data); + return TRUE; + case PROTOBUF_C_TYPE_ENUM: + if (wire_type != PROTOBUF_C_WIRE_TYPE_VARINT) + return FALSE; + *(uint32_t *) member = parse_uint32(len, data); + return TRUE; + case PROTOBUF_C_TYPE_STRING: { + char **pstr = member; + unsigned pref_len = scanned_member->length_prefix_len; + + if (wire_type != PROTOBUF_C_WIRE_TYPE_LENGTH_PREFIXED) + return FALSE; + + if (maybe_clear && *pstr != NULL) { + const char *def = scanned_member->field->default_value; + if (*pstr != NULL && *pstr != def) + do_free(allocator, *pstr); + } + *pstr = do_alloc(allocator, len - pref_len + 1); + if (*pstr == NULL) + return FALSE; + memcpy(*pstr, data + pref_len, len - pref_len); + (*pstr)[len - pref_len] = 0; + return TRUE; + } + case PROTOBUF_C_TYPE_BYTES: { + ProtobufCBinaryData *bd = member; + const ProtobufCBinaryData *def_bd; + unsigned pref_len = scanned_member->length_prefix_len; + + if (wire_type != PROTOBUF_C_WIRE_TYPE_LENGTH_PREFIXED) + return FALSE; + + def_bd = scanned_member->field->default_value; + if (maybe_clear && + bd->data != NULL && + (def_bd == NULL || bd->data != def_bd->data)) + { + do_free(allocator, bd->data); + } + if (len - pref_len > 0) { + bd->data = do_alloc(allocator, len - pref_len); + if (bd->data == NULL) + return FALSE; + memcpy(bd->data, data + pref_len, len - pref_len); + } else { + bd->data = NULL; + } + bd->len = len - pref_len; + return TRUE; + } + case PROTOBUF_C_TYPE_MESSAGE: { + ProtobufCMessage **pmessage = member; + ProtobufCMessage *subm; + const ProtobufCMessage *def_mess; + protobuf_c_boolean merge_successful = TRUE; + unsigned pref_len = scanned_member->length_prefix_len; + + if (wire_type != PROTOBUF_C_WIRE_TYPE_LENGTH_PREFIXED) + return FALSE; + + def_mess = scanned_member->field->default_value; + subm = protobuf_c_message_unpack(scanned_member->field->descriptor, + allocator, + len - pref_len, + data + pref_len); + + if (maybe_clear && + *pmessage != NULL && + *pmessage != def_mess) + { + if (subm != NULL) + merge_successful = merge_messages(*pmessage, subm, allocator); + /* Delete the previous message */ + protobuf_c_message_free_unpacked(*pmessage, allocator); + } + *pmessage = subm; + if (subm == NULL || !merge_successful) + return FALSE; + return TRUE; + } + } + return FALSE; +} + +static protobuf_c_boolean +parse_optional_member(ScannedMember *scanned_member, + void *member, + ProtobufCMessage *message, + ProtobufCAllocator *allocator) +{ + if (!parse_required_member(scanned_member, member, allocator, TRUE)) + return FALSE; + if (scanned_member->field->quantifier_offset != 0) + STRUCT_MEMBER(protobuf_c_boolean, + message, + scanned_member->field->quantifier_offset) = TRUE; + return TRUE; +} + +static protobuf_c_boolean +parse_repeated_member(ScannedMember *scanned_member, + void *member, + ProtobufCMessage *message, + ProtobufCAllocator *allocator) +{ + const ProtobufCFieldDescriptor *field = scanned_member->field; + size_t *p_n = STRUCT_MEMBER_PTR(size_t, message, field->quantifier_offset); + size_t siz = sizeof_elt_in_repeated_array(field->type); + char *array = *(char **) member; + + if (!parse_required_member(scanned_member, array + siz * (*p_n), + allocator, FALSE)) + { + return FALSE; + } + *p_n += 1; + return TRUE; +} + +static unsigned +scan_varint(unsigned len, const uint8_t *data) +{ + unsigned i; + if (len > 10) + len = 10; + for (i = 0; i < len; i++) + if ((data[i] & 0x80) == 0) + break; + if (i == len) + return 0; + return i + 1; +} + +static protobuf_c_boolean +parse_packed_repeated_member(ScannedMember *scanned_member, + void *member, + ProtobufCMessage *message) +{ + const ProtobufCFieldDescriptor *field = scanned_member->field; + size_t *p_n = STRUCT_MEMBER_PTR(size_t, message, field->quantifier_offset); + size_t siz = sizeof_elt_in_repeated_array(field->type); + void *array = *(uint8_t **) member + siz * (*p_n); + const uint8_t *at = scanned_member->data + scanned_member->length_prefix_len; + size_t rem = scanned_member->len - scanned_member->length_prefix_len; + size_t count = 0; + unsigned i; + + switch (field->type) { + case PROTOBUF_C_TYPE_SFIXED32: + case PROTOBUF_C_TYPE_FIXED32: + case PROTOBUF_C_TYPE_FLOAT: + count = (scanned_member->len - scanned_member->length_prefix_len) / 4; +#if !defined(WORDS_BIGENDIAN) + goto no_unpacking_needed; +#else + for (i = 0; i < count; i++) { + ((uint32_t *) array)[i] = parse_fixed_uint32(at); + at += 4; + } + break; +#endif + case PROTOBUF_C_TYPE_SFIXED64: + case PROTOBUF_C_TYPE_FIXED64: + case PROTOBUF_C_TYPE_DOUBLE: + count = (scanned_member->len - scanned_member->length_prefix_len) / 8; +#if !defined(WORDS_BIGENDIAN) + goto no_unpacking_needed; +#else + for (i = 0; i < count; i++) { + ((uint64_t *) array)[i] = parse_fixed_uint64(at); + at += 8; + } + break; +#endif + case PROTOBUF_C_TYPE_INT32: + while (rem > 0) { + unsigned s = scan_varint(rem, at); + if (s == 0) { + PROTOBUF_C_UNPACK_ERROR(("bad packed-repeated int32 value")) + return FALSE; + } + ((int32_t *) array)[count++] = parse_int32(s, at); + at += s; + rem -= s; + } + break; + case PROTOBUF_C_TYPE_SINT32: + while (rem > 0) { + unsigned s = scan_varint(rem, at); + if (s == 0) { + PROTOBUF_C_UNPACK_ERROR(("bad packed-repeated sint32 value")) + return FALSE; + } + ((int32_t *) array)[count++] = unzigzag32(parse_uint32(s, at)); + at += s; + rem -= s; + } + break; + case PROTOBUF_C_TYPE_ENUM: + case PROTOBUF_C_TYPE_UINT32: + while (rem > 0) { + unsigned s = scan_varint(rem, at); + if (s == 0) { + PROTOBUF_C_UNPACK_ERROR(("bad packed-repeated enum or uint32 value")) + return FALSE; + } + ((uint32_t *) array)[count++] = parse_uint32(s, at); + at += s; + rem -= s; + } + break; + + case PROTOBUF_C_TYPE_SINT64: + while (rem > 0) { + unsigned s = scan_varint(rem, at); + if (s == 0) { + PROTOBUF_C_UNPACK_ERROR(("bad packed-repeated sint64 value")) + return FALSE; + } + ((int64_t *) array)[count++] = unzigzag64(parse_uint64(s, at)); + at += s; + rem -= s; + } + break; + case PROTOBUF_C_TYPE_INT64: + case PROTOBUF_C_TYPE_UINT64: + while (rem > 0) { + unsigned s = scan_varint(rem, at); + if (s == 0) { + PROTOBUF_C_UNPACK_ERROR(("bad packed-repeated int64/uint64 value")) + return FALSE; + } + ((int64_t *) array)[count++] = parse_uint64(s, at); + at += s; + rem -= s; + } + break; + case PROTOBUF_C_TYPE_BOOL: + count = rem; + for (i = 0; i < count; i++) { + if (at[i] > 1) { + PROTOBUF_C_UNPACK_ERROR(("bad packed-repeated boolean value")) + return FALSE; + } + ((protobuf_c_boolean *) array)[i] = at[i]; + } + break; + default: + PROTOBUF_C__ASSERT_NOT_REACHED(); + } + *p_n += count; + return TRUE; + +#if !defined(WORDS_BIGENDIAN) +no_unpacking_needed: + memcpy(array, at, count * siz); + *p_n += count; + return TRUE; +#endif +} + +static protobuf_c_boolean +is_packable_type(ProtobufCType type) +{ + return + type != PROTOBUF_C_TYPE_STRING && + type != PROTOBUF_C_TYPE_BYTES && + type != PROTOBUF_C_TYPE_MESSAGE; +} + +static protobuf_c_boolean +parse_member(ScannedMember *scanned_member, + ProtobufCMessage *message, + ProtobufCAllocator *allocator) +{ + const ProtobufCFieldDescriptor *field = scanned_member->field; + void *member; + + if (field == NULL) { + ProtobufCMessageUnknownField *ufield = + message->unknown_fields + + (message->n_unknown_fields++); + ufield->tag = scanned_member->tag; + ufield->wire_type = scanned_member->wire_type; + ufield->len = scanned_member->len; + ufield->data = do_alloc(allocator, scanned_member->len); + if (ufield->data == NULL) + return FALSE; + memcpy(ufield->data, scanned_member->data, ufield->len); + return TRUE; + } + member = (char *) message + field->offset; + switch (field->label) { + case PROTOBUF_C_LABEL_REQUIRED: + return parse_required_member(scanned_member, member, + allocator, TRUE); + case PROTOBUF_C_LABEL_OPTIONAL: + return parse_optional_member(scanned_member, member, + message, allocator); + case PROTOBUF_C_LABEL_REPEATED: + if (scanned_member->wire_type == + PROTOBUF_C_WIRE_TYPE_LENGTH_PREFIXED && + (0 != (field->flags & PROTOBUF_C_FIELD_FLAG_PACKED) || + is_packable_type(field->type))) + { + return parse_packed_repeated_member(scanned_member, + member, message); + } else { + return parse_repeated_member(scanned_member, + member, message, + allocator); + } + } + PROTOBUF_C__ASSERT_NOT_REACHED(); + return 0; +} + +/** + * Initialise messages generated by old code. + * + * This function is used if desc->message_init == NULL (which occurs + * for old code, and which would be useful to support allocating + * descriptors dynamically). + */ +static void +message_init_generic(const ProtobufCMessageDescriptor *desc, + ProtobufCMessage *message) +{ + unsigned i; + + memset(message, 0, desc->sizeof_message); + message->descriptor = desc; + for (i = 0; i < desc->n_fields; i++) { + if (desc->fields[i].default_value != NULL && + desc->fields[i].label != PROTOBUF_C_LABEL_REPEATED) + { + void *field = + STRUCT_MEMBER_P(message, desc->fields[i].offset); + const void *dv = desc->fields[i].default_value; + + switch (desc->fields[i].type) { + case PROTOBUF_C_TYPE_INT32: + case PROTOBUF_C_TYPE_SINT32: + case PROTOBUF_C_TYPE_SFIXED32: + case PROTOBUF_C_TYPE_UINT32: + case PROTOBUF_C_TYPE_FIXED32: + case PROTOBUF_C_TYPE_FLOAT: + case PROTOBUF_C_TYPE_ENUM: + memcpy(field, dv, 4); + break; + case PROTOBUF_C_TYPE_INT64: + case PROTOBUF_C_TYPE_SINT64: + case PROTOBUF_C_TYPE_SFIXED64: + case PROTOBUF_C_TYPE_UINT64: + case PROTOBUF_C_TYPE_FIXED64: + case PROTOBUF_C_TYPE_DOUBLE: + memcpy(field, dv, 8); + break; + case PROTOBUF_C_TYPE_BOOL: + memcpy(field, dv, sizeof(protobuf_c_boolean)); + break; + case PROTOBUF_C_TYPE_BYTES: + memcpy(field, dv, sizeof(ProtobufCBinaryData)); + break; + + case PROTOBUF_C_TYPE_STRING: + case PROTOBUF_C_TYPE_MESSAGE: + /* + * The next line essentially implements a cast + * from const, which is totally unavoidable. + */ + *(const void **) field = dv; + break; + } + } + } +} + +/**@}*/ + +/* + * ScannedMember slabs (an unpacking implementation detail). Before doing real + * unpacking, we first scan through the elements to see how many there are (for + * repeated fields), and which field to use (for non-repeated fields given + * twice). + * + * In order to avoid allocations for small messages, we keep a stack-allocated + * slab of ScannedMembers of size FIRST_SCANNED_MEMBER_SLAB_SIZE (16). After we + * fill that up, we allocate each slab twice as large as the previous one. + */ +#define FIRST_SCANNED_MEMBER_SLAB_SIZE_LOG2 4 + +/* + * The number of slabs, including the stack-allocated ones; choose the number so + * that we would overflow if we needed a slab larger than provided. + */ +#define MAX_SCANNED_MEMBER_SLAB \ + (sizeof(unsigned int)*8 - 1 \ + - BOUND_SIZEOF_SCANNED_MEMBER_LOG2 \ + - FIRST_SCANNED_MEMBER_SLAB_SIZE_LOG2) + +#define REQUIRED_FIELD_BITMAP_SET(index) \ + (required_fields_bitmap[(index)/8] |= (1<<((index)%8))) + +#define REQUIRED_FIELD_BITMAP_IS_SET(index) \ + (required_fields_bitmap[(index)/8] & (1<<((index)%8))) + +ProtobufCMessage * +protobuf_c_message_unpack(const ProtobufCMessageDescriptor *desc, + ProtobufCAllocator *allocator, + size_t len, const uint8_t *data) +{ + ProtobufCMessage *rv; + size_t rem = len; + const uint8_t *at = data; + const ProtobufCFieldDescriptor *last_field = desc->fields + 0; + ScannedMember first_member_slab[1 << + FIRST_SCANNED_MEMBER_SLAB_SIZE_LOG2]; + + /* + * scanned_member_slabs[i] is an array of arrays of ScannedMember. + * The first slab (scanned_member_slabs[0] is just a pointer to + * first_member_slab), above. All subsequent slabs will be allocated + * using the allocator. + */ + ScannedMember *scanned_member_slabs[MAX_SCANNED_MEMBER_SLAB + 1]; + unsigned which_slab = 0; /* the slab we are currently populating */ + unsigned in_slab_index = 0; /* number of members in the slab */ + size_t n_unknown = 0; + unsigned f; + unsigned j; + unsigned i_slab; + unsigned last_field_index = 0; + unsigned required_fields_bitmap_len; + unsigned char required_fields_bitmap_stack[16]; + unsigned char *required_fields_bitmap = required_fields_bitmap_stack; + protobuf_c_boolean required_fields_bitmap_alloced = FALSE; + + ASSERT_IS_MESSAGE_DESCRIPTOR(desc); + + if (allocator == NULL) + allocator = &protobuf_c__allocator; + + rv = do_alloc(allocator, desc->sizeof_message); + if (!rv) + return (NULL); + scanned_member_slabs[0] = first_member_slab; + + required_fields_bitmap_len = (desc->n_fields + 7) / 8; + if (required_fields_bitmap_len > sizeof(required_fields_bitmap_stack)) { + required_fields_bitmap = do_alloc(allocator, required_fields_bitmap_len); + if (!required_fields_bitmap) { + do_free(allocator, rv); + return (NULL); + } + required_fields_bitmap_alloced = TRUE; + } + memset(required_fields_bitmap, 0, required_fields_bitmap_len); + + /* + * Generated code always defines "message_init". However, we provide a + * fallback for (1) users of old protobuf-c generated-code that do not + * provide the function, and (2) descriptors constructed from some other + * source (most likely, direct construction from the .proto file). + */ + if (desc->message_init != NULL) + protobuf_c_message_init(desc, rv); + else + message_init_generic(desc, rv); + + while (rem > 0) { + uint32_t tag; + ProtobufCWireType wire_type; + size_t used = parse_tag_and_wiretype(rem, at, &tag, &wire_type); + const ProtobufCFieldDescriptor *field; + ScannedMember tmp; + + if (used == 0) { + PROTOBUF_C_UNPACK_ERROR(("error parsing tag/wiretype at offset %u", + (unsigned) (at - data))) + goto error_cleanup_during_scan; + } + /* + * \todo Consider optimizing for field[1].id == tag, if field[1] + * exists! + */ + if (last_field == NULL || last_field->id != tag) { + /* lookup field */ + int field_index = + int_range_lookup(desc->n_field_ranges, + desc->field_ranges, + tag); + if (field_index < 0) { + field = NULL; + n_unknown++; + } else { + field = desc->fields + field_index; + last_field = field; + last_field_index = field_index; + } + } else { + field = last_field; + } + + if (field != NULL && field->label == PROTOBUF_C_LABEL_REQUIRED) + REQUIRED_FIELD_BITMAP_SET(last_field_index); + + at += used; + rem -= used; + tmp.tag = tag; + tmp.wire_type = wire_type; + tmp.field = field; + tmp.data = at; + tmp.length_prefix_len = 0; + + switch (wire_type) { + case PROTOBUF_C_WIRE_TYPE_VARINT: { + unsigned max_len = rem < 10 ? rem : 10; + unsigned i; + + for (i = 0; i < max_len; i++) + if ((at[i] & 0x80) == 0) + break; + if (i == max_len) { + PROTOBUF_C_UNPACK_ERROR(("unterminated varint at offset %u", + (unsigned) (at - data))) + goto error_cleanup_during_scan; + } + tmp.len = i + 1; + break; + } + case PROTOBUF_C_WIRE_TYPE_64BIT: + if (rem < 8) { + PROTOBUF_C_UNPACK_ERROR(("too short after 64bit wiretype at offset %u", + (unsigned) (at - data))) + goto error_cleanup_during_scan; + } + tmp.len = 8; + break; + case PROTOBUF_C_WIRE_TYPE_LENGTH_PREFIXED: { + size_t pref_len; + + tmp.len = scan_length_prefixed_data(rem, at, &pref_len); + if (tmp.len == 0) { + /* NOTE: scan_length_prefixed_data calls UNPACK_ERROR */ + goto error_cleanup_during_scan; + } + tmp.length_prefix_len = pref_len; + break; + } + case PROTOBUF_C_WIRE_TYPE_32BIT: + if (rem < 4) { + PROTOBUF_C_UNPACK_ERROR(("too short after 32bit wiretype at offset %u", + (unsigned) (at - data))) + goto error_cleanup_during_scan; + } + tmp.len = 4; + break; + default: + PROTOBUF_C_UNPACK_ERROR(("unsupported tag %u at offset %u", + wire_type, (unsigned) (at - data))) + goto error_cleanup_during_scan; + } + + if (in_slab_index == (1U << + (which_slab + FIRST_SCANNED_MEMBER_SLAB_SIZE_LOG2))) + { + size_t size; + + in_slab_index = 0; + if (which_slab == MAX_SCANNED_MEMBER_SLAB) { + PROTOBUF_C_UNPACK_ERROR(("too many fields")) + goto error_cleanup_during_scan; + } + which_slab++; + size = sizeof(ScannedMember) + << (which_slab + FIRST_SCANNED_MEMBER_SLAB_SIZE_LOG2); + scanned_member_slabs[which_slab] = do_alloc(allocator, size); + if (scanned_member_slabs[which_slab] == NULL) + goto error_cleanup_during_scan; + } + scanned_member_slabs[which_slab][in_slab_index++] = tmp; + + if (field != NULL && field->label == PROTOBUF_C_LABEL_REPEATED) { + size_t *n = STRUCT_MEMBER_PTR(size_t, rv, + field->quantifier_offset); + if (wire_type == PROTOBUF_C_WIRE_TYPE_LENGTH_PREFIXED && + (0 != (field->flags & PROTOBUF_C_FIELD_FLAG_PACKED) || + is_packable_type(field->type))) + { + size_t count; + if (!count_packed_elements(field->type, + tmp.len - + tmp.length_prefix_len, + tmp.data + + tmp.length_prefix_len, + &count)) + { + PROTOBUF_C_UNPACK_ERROR(("counting packed elements")) + goto error_cleanup_during_scan; + } + *n += count; + } else { + *n += 1; + } + } + + at += tmp.len; + rem -= tmp.len; + } + + /* allocate space for repeated fields, also check that all required fields have been set */ + for (f = 0; f < desc->n_fields; f++) { + const ProtobufCFieldDescriptor *field = desc->fields + f; + if (field->label == PROTOBUF_C_LABEL_REPEATED) { + size_t siz = + sizeof_elt_in_repeated_array(field->type); + size_t *n_ptr = + STRUCT_MEMBER_PTR(size_t, rv, + field->quantifier_offset); + if (*n_ptr != 0) { + unsigned n = *n_ptr; + void *a; + *n_ptr = 0; + assert(rv->descriptor != NULL); +#define CLEAR_REMAINING_N_PTRS() \ + for(f++;f < desc->n_fields; f++) \ + { \ + field = desc->fields + f; \ + if (field->label == PROTOBUF_C_LABEL_REPEATED) \ + STRUCT_MEMBER (size_t, rv, field->quantifier_offset) = 0; \ + } + a = do_alloc(allocator, siz * n); + if (!a) { + CLEAR_REMAINING_N_PTRS(); + goto error_cleanup; + } + STRUCT_MEMBER(void *, rv, field->offset) = a; + } + } else if (field->label == PROTOBUF_C_LABEL_REQUIRED) { + if (field->default_value == NULL && + !REQUIRED_FIELD_BITMAP_IS_SET(f)) + { + CLEAR_REMAINING_N_PTRS(); + PROTOBUF_C_UNPACK_ERROR(("message '%s': missing required field '%s'", + desc->name, field->name)) + goto error_cleanup; + } + } + } +#undef CLEAR_REMAINING_N_PTRS + + /* allocate space for unknown fields */ + if (n_unknown) { + rv->unknown_fields = do_alloc(allocator, + n_unknown * sizeof(ProtobufCMessageUnknownField)); + if (rv->unknown_fields == NULL) + goto error_cleanup; + } + + /* do real parsing */ + for (i_slab = 0; i_slab <= which_slab; i_slab++) { + unsigned max = (i_slab == which_slab) ? + in_slab_index : (1U << (i_slab + 4)); + ScannedMember *slab = scanned_member_slabs[i_slab]; + unsigned j; + + for (j = 0; j < max; j++) { + if (!parse_member(slab + j, rv, allocator)) { + PROTOBUF_C_UNPACK_ERROR(("error parsing member %s of %s", + slab->field ? slab->field->name : "*unknown-field*", + desc->name)) + goto error_cleanup; + } + } + } + + /* cleanup */ + for (j = 1; j <= which_slab; j++) + do_free(allocator, scanned_member_slabs[j]); + if (required_fields_bitmap_alloced) + do_free(allocator, required_fields_bitmap); + return rv; + +error_cleanup: + protobuf_c_message_free_unpacked(rv, allocator); + for (j = 1; j <= which_slab; j++) + do_free(allocator, scanned_member_slabs[j]); + if (required_fields_bitmap_alloced) + do_free(allocator, required_fields_bitmap); + return NULL; + +error_cleanup_during_scan: + do_free(allocator, rv); + for (j = 1; j <= which_slab; j++) + do_free(allocator, scanned_member_slabs[j]); + if (required_fields_bitmap_alloced) + do_free(allocator, required_fields_bitmap); + return NULL; +} + +void +protobuf_c_message_free_unpacked(ProtobufCMessage *message, + ProtobufCAllocator *allocator) +{ + const ProtobufCMessageDescriptor *desc = message->descriptor; + unsigned f; + + ASSERT_IS_MESSAGE(message); + if (allocator == NULL) + allocator = &protobuf_c__allocator; + message->descriptor = NULL; + for (f = 0; f < desc->n_fields; f++) { + if (desc->fields[f].label == PROTOBUF_C_LABEL_REPEATED) { + size_t n = STRUCT_MEMBER(size_t, + message, + desc->fields[f].quantifier_offset); + void *arr = STRUCT_MEMBER(void *, + message, + desc->fields[f].offset); + + if (desc->fields[f].type == PROTOBUF_C_TYPE_STRING) { + unsigned i; + for (i = 0; i < n; i++) + do_free(allocator, ((char **) arr)[i]); + } else if (desc->fields[f].type == PROTOBUF_C_TYPE_BYTES) { + unsigned i; + for (i = 0; i < n; i++) + do_free(allocator, ((ProtobufCBinaryData *) arr)[i].data); + } else if (desc->fields[f].type == PROTOBUF_C_TYPE_MESSAGE) { + unsigned i; + for (i = 0; i < n; i++) + protobuf_c_message_free_unpacked( + ((ProtobufCMessage **) arr)[i], + allocator + ); + } + if (arr != NULL) + do_free(allocator, arr); + } else if (desc->fields[f].type == PROTOBUF_C_TYPE_STRING) { + char *str = STRUCT_MEMBER(char *, message, + desc->fields[f].offset); + + if (str && str != desc->fields[f].default_value) + do_free(allocator, str); + } else if (desc->fields[f].type == PROTOBUF_C_TYPE_BYTES) { + void *data = STRUCT_MEMBER(ProtobufCBinaryData, message, + desc->fields[f].offset).data; + const ProtobufCBinaryData *default_bd; + + default_bd = desc->fields[f].default_value; + if (data != NULL && + (default_bd == NULL || + default_bd->data != data)) + { + do_free(allocator, data); + } + } else if (desc->fields[f].type == PROTOBUF_C_TYPE_MESSAGE) { + ProtobufCMessage *sm; + + sm = STRUCT_MEMBER(ProtobufCMessage *, message, + desc->fields[f].offset); + if (sm && sm != desc->fields[f].default_value) + protobuf_c_message_free_unpacked(sm, allocator); + } + } + + for (f = 0; f < message->n_unknown_fields; f++) + do_free(allocator, message->unknown_fields[f].data); + if (message->unknown_fields != NULL) + do_free(allocator, message->unknown_fields); + + do_free(allocator, message); +} + +void +protobuf_c_message_init(const ProtobufCMessageDescriptor * descriptor, + void *message) +{ + descriptor->message_init((ProtobufCMessage *) (message)); +} + +protobuf_c_boolean +protobuf_c_message_check(const ProtobufCMessage *message) +{ + unsigned i; + + if (!message || + !message->descriptor || + message->descriptor->magic != PROTOBUF_C__MESSAGE_DESCRIPTOR_MAGIC) + { + return FALSE; + } + + for (i = 0; i < message->descriptor->n_fields; i++) { + const ProtobufCFieldDescriptor *f = message->descriptor->fields + i; + ProtobufCType type = f->type; + ProtobufCLabel label = f->label; + void *field = STRUCT_MEMBER_P (message, f->offset); + + if (label == PROTOBUF_C_LABEL_REPEATED) { + size_t *quantity = STRUCT_MEMBER_P (message, f->quantifier_offset); + + if (*quantity > 0 && *(void **) field == NULL) { + return FALSE; + } + + if (type == PROTOBUF_C_TYPE_MESSAGE) { + ProtobufCMessage **submessage = *(ProtobufCMessage ***) field; + unsigned j; + for (j = 0; j < *quantity; j++) { + if (!protobuf_c_message_check(submessage[j])) + return FALSE; + } + } else if (type == PROTOBUF_C_TYPE_STRING) { + char **string = *(char ***) field; + unsigned j; + for (j = 0; j < *quantity; j++) { + if (!string[j]) + return FALSE; + } + } else if (type == PROTOBUF_C_TYPE_BYTES) { + ProtobufCBinaryData *bd = *(ProtobufCBinaryData **) field; + unsigned j; + for (j = 0; j < *quantity; j++) { + if (bd[j].len > 0 && bd[j].data == NULL) + return FALSE; + } + } + + } else { /* PROTOBUF_C_LABEL_REQUIRED or PROTOBUF_C_LABEL_OPTIONAL */ + + if (type == PROTOBUF_C_TYPE_MESSAGE) { + ProtobufCMessage *submessage = *(ProtobufCMessage **) field; + if (label == PROTOBUF_C_LABEL_REQUIRED || submessage != NULL) { + if (!protobuf_c_message_check(submessage)) + return FALSE; + } + } else if (type == PROTOBUF_C_TYPE_STRING) { + char *string = *(char **) field; + if (label == PROTOBUF_C_LABEL_REQUIRED && string == NULL) + return FALSE; + } else if (type == PROTOBUF_C_TYPE_BYTES) { + protobuf_c_boolean *has = STRUCT_MEMBER_P (message, f->quantifier_offset); + ProtobufCBinaryData *bd = field; + if (label == PROTOBUF_C_LABEL_REQUIRED || *has == TRUE) { + if (bd->len > 0 && bd->data == NULL) + return FALSE; + } + } + } + } + + return TRUE; +} + +/* === services === */ + +typedef void (*GenericHandler) (void *service, + const ProtobufCMessage *input, + ProtobufCClosure closure, + void *closure_data); +void +protobuf_c_service_invoke_internal(ProtobufCService *service, + unsigned method_index, + const ProtobufCMessage *input, + ProtobufCClosure closure, + void *closure_data) +{ + GenericHandler *handlers; + GenericHandler handler; + + /* + * Verify that method_index is within range. If this fails, you are + * likely invoking a newly added method on an old service. (Although + * other memory corruption bugs can cause this assertion too.) + */ + assert(method_index < service->descriptor->n_methods); + + /* + * Get the array of virtual methods (which are enumerated by the + * generated code). + */ + handlers = (GenericHandler *) (service + 1); + + /* + * Get our method and invoke it. + * \todo Seems like handler == NULL is a situation that needs handling. + */ + handler = handlers[method_index]; + (*handler)(service, input, closure, closure_data); +} + +void +protobuf_c_service_generated_init(ProtobufCService *service, + const ProtobufCServiceDescriptor *descriptor, + ProtobufCServiceDestroy destroy) +{ + ASSERT_IS_SERVICE_DESCRIPTOR(descriptor); + service->descriptor = descriptor; + service->destroy = destroy; + service->invoke = protobuf_c_service_invoke_internal; + memset(service + 1, 0, descriptor->n_methods * sizeof(GenericHandler)); +} + +void protobuf_c_service_destroy(ProtobufCService *service) +{ + service->destroy(service); +} + +/* --- querying the descriptors --- */ + +const ProtobufCEnumValue * +protobuf_c_enum_descriptor_get_value_by_name(const ProtobufCEnumDescriptor *desc, + const char *name) +{ + unsigned start = 0; + unsigned count = desc->n_value_names; + + while (count > 1) { + unsigned mid = start + count / 2; + int rv = strcmp(desc->values_by_name[mid].name, name); + if (rv == 0) + return desc->values + desc->values_by_name[mid].index; + else if (rv < 0) { + count = start + count - (mid + 1); + start = mid + 1; + } else + count = mid - start; + } + if (count == 0) + return NULL; + if (strcmp(desc->values_by_name[start].name, name) == 0) + return desc->values + desc->values_by_name[start].index; + return NULL; +} + +const ProtobufCEnumValue * +protobuf_c_enum_descriptor_get_value(const ProtobufCEnumDescriptor *desc, + int value) +{ + int rv = int_range_lookup(desc->n_value_ranges, desc->value_ranges, value); + if (rv < 0) + return NULL; + return desc->values + rv; +} + +const ProtobufCFieldDescriptor * +protobuf_c_message_descriptor_get_field_by_name(const ProtobufCMessageDescriptor *desc, + const char *name) +{ + unsigned start = 0; + unsigned count = desc->n_fields; + const ProtobufCFieldDescriptor *field; + + while (count > 1) { + unsigned mid = start + count / 2; + int rv; + field = desc->fields + desc->fields_sorted_by_name[mid]; + rv = strcmp(field->name, name); + if (rv == 0) + return field; + else if (rv < 0) { + count = start + count - (mid + 1); + start = mid + 1; + } else + count = mid - start; + } + if (count == 0) + return NULL; + field = desc->fields + desc->fields_sorted_by_name[start]; + if (strcmp(field->name, name) == 0) + return field; + return NULL; +} + +const ProtobufCFieldDescriptor * +protobuf_c_message_descriptor_get_field(const ProtobufCMessageDescriptor *desc, + unsigned value) +{ + int rv = int_range_lookup(desc->n_field_ranges,desc->field_ranges, value); + if (rv < 0) + return NULL; + return desc->fields + rv; +} + +const ProtobufCMethodDescriptor * +protobuf_c_service_descriptor_get_method_by_name(const ProtobufCServiceDescriptor *desc, + const char *name) +{ + unsigned start = 0; + unsigned count = desc->n_methods; + + while (count > 1) { + unsigned mid = start + count / 2; + unsigned mid_index = desc->method_indices_by_name[mid]; + const char *mid_name = desc->methods[mid_index].name; + int rv = strcmp(mid_name, name); + + if (rv == 0) + return desc->methods + desc->method_indices_by_name[mid]; + if (rv < 0) { + count = start + count - (mid + 1); + start = mid + 1; + } else { + count = mid - start; + } + } + if (count == 0) + return NULL; + if (strcmp(desc->methods[desc->method_indices_by_name[start]].name, name) == 0) + return desc->methods + desc->method_indices_by_name[start]; + return NULL; +} diff --git a/ccast/chan/protobuf-c.h b/ccast/chan/protobuf-c.h new file mode 100644 index 0000000..8c4ba1d --- /dev/null +++ b/ccast/chan/protobuf-c.h @@ -0,0 +1,1079 @@ +/* + * Copyright (c) 2008-2014, Dave Benson and the protobuf-c authors. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following disclaimer + * in the documentation and/or other materials provided with the + * distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +/*! \file + * \mainpage Introduction + * + * This is [protobuf-c], a C implementation of [Protocol Buffers]. + * + * This file defines the public API for the `libprotobuf-c` support library. + * This API includes interfaces that can be used directly by client code as well + * as the interfaces used by the code generated by the `protoc-c` compiler. + * + * The `libprotobuf-c` support library performs the actual serialization and + * deserialization of Protocol Buffers messages. It interacts with structures, + * definitions, and metadata generated by the `protoc-c` compiler from .proto + * files. + * + * \authors Dave Benson and the `protobuf-c` authors. + * + * \copyright 2008-2014. Licensed under the terms of the [BSD-2-Clause] license. + * + * [protobuf-c]: https://github.com/protobuf-c/protobuf-c + * [Protocol Buffers]: https://developers.google.com/protocol-buffers/ + * [BSD-2-Clause]: http://opensource.org/licenses/BSD-2-Clause + * + * \page gencode Generated Code + * + * For each enum, we generate a C enum. For each message, we generate a C + * structure which can be cast to a `ProtobufCMessage`. + * + * For each enum and message, we generate a descriptor object that allows us to + * implement a kind of reflection on the structures. + * + * First, some naming conventions: + * + * - The name of the type for enums and messages and services is camel case + * (meaning WordsAreCrammedTogether) except that double underscores are used + * to delimit scopes. For example, the following `.proto` file: + * +~~~{.proto} + package foo.bar; + message BazBah { + optional int32 val = 1; + } +~~~ + * + * would generate a C type `Foo__Bar__BazBah`. + * + * - Identifiers for functions and globals are all lowercase, with camel case + * words separated by single underscores. For example, one of the function + * prototypes generated by `protoc-c` for the above example: + * +~~~{.c} +Foo__Bar__BazBah * + foo__bar__baz_bah__unpack + (ProtobufCAllocator *allocator, + size_t len, + const uint8_t *data); +~~~ + * + * - Identifiers for enum values contain an uppercase prefix which embeds the + * package name and the enum type name. + * + * - A double underscore is used to separate further components of identifier + * names. + * + * For example, in the name of the unpack function above, the package name + * `foo.bar` has become `foo__bar`, the message name BazBah has become + * `baz_bah`, and the method name is `unpack`. These are all joined with double + * underscores to form the C identifier `foo__bar__baz_bah__unpack`. + * + * We also generate descriptor objects for messages and enums. These are + * declared in the `.pb-c.h` files: + * +~~~{.c} +extern const ProtobufCMessageDescriptor foo__bar__baz_bah__descriptor; +~~~ + * + * The message structures all begin with `ProtobufCMessageDescriptor *` which is + * sufficient to allow them to be cast to `ProtobufCMessage`. + * + * For each message defined in a `.proto` file, we generate a number of + * functions. Each function name contains a prefix based on the package name and + * message name in order to make it a unique C identifier. + * + * - `unpack()`. Unpacks data for a particular message format. Note that the + * `allocator` parameter is usually `NULL` to indicate that the system's + * `malloc()` and `free()` functions should be used for dynamically allocating + * memory. + * +~~~{.c} +Foo__Bar__BazBah * + foo__bar__baz_bah__unpack + (ProtobufCAllocator *allocator, + size_t len, + const uint8_t *data); +~~~ + * + * - `free_unpacked()`. Frees a message object obtained with the `unpack()` + * method. + * +~~~{.c} +void foo__bar__baz_bah__free_unpacked + (Foo__Bar__BazBah *message, + ProtobufCAllocator *allocator); +~~~ + * + * - `get_packed_size()`. Calculates the length in bytes of the serialized + * representation of the message object. + * +~~~{.c} +size_t foo__bar__baz_bah__get_packed_size + (const Foo__Bar__BazBah *message); +~~~ + * + * - `pack()`. Pack a message object into a preallocated buffer. Assumes that + * the buffer is large enough. (Use `get_packed_size()` first.) + * +~~~{.c} +size_t foo__bar__baz_bah__pack + (const Foo__Bar__BazBah *message, + uint8_t *out); +~~~ + * + * - `pack_to_buffer()`. Packs a message into a "virtual buffer". This is an + * object which defines an "append bytes" callback to consume data as it is + * serialized. + * +~~~{.c} +size_t foo__bar__baz_bah__pack_to_buffer + (const Foo__Bar__BazBah *message, + ProtobufCBuffer *buffer); +~~~ + * + * \page pack Packing and unpacking messages + * + * To pack a message, first compute the packed size of the message with + * protobuf_c_message_get_packed_size(), then allocate a buffer of at least + * that size, then call protobuf_c_message_pack(). + * + * Alternatively, a message can be serialized without calculating the final size + * first. Use the protobuf_c_message_pack_to_buffer() function and provide a + * ProtobufCBuffer object which implements an "append" method that consumes + * data. + * + * To unpack a message, call the protobuf_c_message_unpack() function. The + * result can be cast to an object of the type that matches the descriptor for + * the message. + * + * The result of unpacking a message should be freed with + * protobuf_c_message_free_unpacked(). + */ + +#ifndef PROTOBUF_C_H +#define PROTOBUF_C_H + +#include +#include +#include +#include "os_int.h" + +#ifdef __cplusplus +# define PROTOBUF_C__BEGIN_DECLS extern "C" { +# define PROTOBUF_C__END_DECLS } +#else +# define PROTOBUF_C__BEGIN_DECLS +# define PROTOBUF_C__END_DECLS +#endif + +PROTOBUF_C__BEGIN_DECLS + +#if defined(_WIN32) && defined(PROTOBUF_C_USE_SHARED_LIB) +# ifdef PROTOBUF_C_EXPORT +# define PROTOBUF_C__API __declspec(dllexport) +# else +# define PROTOBUF_C__API __declspec(dllimport) +# endif +#else +# define PROTOBUF_C__API +#endif + +#if !defined(PROTOBUF_C__NO_DEPRECATED) +# if (__GNUC__ > 3) || (__GNUC__ == 3 && __GNUC_MINOR__ >= 1) +# define PROTOBUF_C__DEPRECATED __attribute__((__deprecated__)) +# endif +#else +# define PROTOBUF_C__DEPRECATED +#endif + +#ifndef PROTOBUF_C__FORCE_ENUM_TO_BE_INT_SIZE + #define PROTOBUF_C__FORCE_ENUM_TO_BE_INT_SIZE(enum_name) \ + , _##enum_name##_IS_INT_SIZE = INT_MAX +#endif + +#define PROTOBUF_C__SERVICE_DESCRIPTOR_MAGIC 0x14159bc3 +#define PROTOBUF_C__MESSAGE_DESCRIPTOR_MAGIC 0x28aaeef9 +#define PROTOBUF_C__ENUM_DESCRIPTOR_MAGIC 0x114315af + +/** + * \defgroup api Public API + * + * This is the public API for `libprotobuf-c`. These interfaces are stable and + * subject to Semantic Versioning guarantees. + * + * @{ + */ + +/** + * Values for the `flags` word in `ProtobufCFieldDescriptor`. + */ +typedef enum { + /** Set if the field is repeated and marked with the `packed` option. */ + PROTOBUF_C_FIELD_FLAG_PACKED = (1 << 0), + + /** Set if the field is marked with the `deprecated` option. */ + PROTOBUF_C_FIELD_FLAG_DEPRECATED = (1 << 1), +} ProtobufCFieldFlag; + +/** + * Message field rules. + * + * \see [Defining A Message Type] in the Protocol Buffers documentation. + * + * [Defining A Message Type]: + * https://developers.google.com/protocol-buffers/docs/proto#simple + */ +typedef enum { + /** A well-formed message must have exactly one of this field. */ + PROTOBUF_C_LABEL_REQUIRED, + + /** + * A well-formed message can have zero or one of this field (but not + * more than one). + */ + PROTOBUF_C_LABEL_OPTIONAL, + + /** + * This field can be repeated any number of times (including zero) in a + * well-formed message. The order of the repeated values will be + * preserved. + */ + PROTOBUF_C_LABEL_REPEATED, +} ProtobufCLabel; + +/** + * Field value types. + * + * \see [Scalar Value Types] in the Protocol Buffers documentation. + * + * [Scalar Value Types]: + * https://developers.google.com/protocol-buffers/docs/proto#scalar + */ +typedef enum { + PROTOBUF_C_TYPE_INT32, /**< int32 */ + PROTOBUF_C_TYPE_SINT32, /**< signed int32 */ + PROTOBUF_C_TYPE_SFIXED32, /**< signed int32 (4 bytes) */ + PROTOBUF_C_TYPE_INT64, /**< int64 */ + PROTOBUF_C_TYPE_SINT64, /**< signed int64 */ + PROTOBUF_C_TYPE_SFIXED64, /**< signed int64 (8 bytes) */ + PROTOBUF_C_TYPE_UINT32, /**< unsigned int32 */ + PROTOBUF_C_TYPE_FIXED32, /**< unsigned int32 (4 bytes) */ + PROTOBUF_C_TYPE_UINT64, /**< unsigned int64 */ + PROTOBUF_C_TYPE_FIXED64, /**< unsigned int64 (8 bytes) */ + PROTOBUF_C_TYPE_FLOAT, /**< float */ + PROTOBUF_C_TYPE_DOUBLE, /**< double */ + PROTOBUF_C_TYPE_BOOL, /**< boolean */ + PROTOBUF_C_TYPE_ENUM, /**< enumerated type */ + PROTOBUF_C_TYPE_STRING, /**< UTF-8 or ASCII string */ + PROTOBUF_C_TYPE_BYTES, /**< arbitrary byte sequence */ + PROTOBUF_C_TYPE_MESSAGE, /**< nested message */ +} ProtobufCType; + +/** + * Field wire types. + * + * \see [Message Structure] in the Protocol Buffers documentation. + * + * [Message Structure]: + * https://developers.google.com/protocol-buffers/docs/encoding#structure + */ +typedef enum { + PROTOBUF_C_WIRE_TYPE_VARINT = 0, + PROTOBUF_C_WIRE_TYPE_64BIT = 1, + PROTOBUF_C_WIRE_TYPE_LENGTH_PREFIXED = 2, + /* "Start group" and "end group" wire types are unsupported. */ + PROTOBUF_C_WIRE_TYPE_32BIT = 5, +} ProtobufCWireType; + +struct ProtobufCAllocator; +struct ProtobufCBinaryData; +struct ProtobufCBuffer; +struct ProtobufCBufferSimple; +struct ProtobufCEnumDescriptor; +struct ProtobufCEnumValue; +struct ProtobufCEnumValueIndex; +struct ProtobufCFieldDescriptor; +struct ProtobufCIntRange; +struct ProtobufCMessage; +struct ProtobufCMessageDescriptor; +struct ProtobufCMessageUnknownField; +struct ProtobufCMethodDescriptor; +struct ProtobufCService; +struct ProtobufCServiceDescriptor; + +typedef struct ProtobufCAllocator ProtobufCAllocator; +typedef struct ProtobufCBinaryData ProtobufCBinaryData; +typedef struct ProtobufCBuffer ProtobufCBuffer; +typedef struct ProtobufCBufferSimple ProtobufCBufferSimple; +typedef struct ProtobufCEnumDescriptor ProtobufCEnumDescriptor; +typedef struct ProtobufCEnumValue ProtobufCEnumValue; +typedef struct ProtobufCEnumValueIndex ProtobufCEnumValueIndex; +typedef struct ProtobufCFieldDescriptor ProtobufCFieldDescriptor; +typedef struct ProtobufCIntRange ProtobufCIntRange; +typedef struct ProtobufCMessage ProtobufCMessage; +typedef struct ProtobufCMessageDescriptor ProtobufCMessageDescriptor; +typedef struct ProtobufCMessageUnknownField ProtobufCMessageUnknownField; +typedef struct ProtobufCMethodDescriptor ProtobufCMethodDescriptor; +typedef struct ProtobufCService ProtobufCService; +typedef struct ProtobufCServiceDescriptor ProtobufCServiceDescriptor; + +/** Boolean type. */ +typedef int protobuf_c_boolean; + +typedef void (*ProtobufCClosure)(const ProtobufCMessage *, void *closure_data); +typedef void (*ProtobufCMessageInit)(ProtobufCMessage *); +typedef void (*ProtobufCServiceDestroy)(ProtobufCService *); + +/** + * Structure for defining a custom memory allocator. + */ +struct ProtobufCAllocator { + /** Function to allocate memory. */ + void *(*alloc)(void *allocator_data, size_t size); + + /** Function to free memory. */ + void (*free)(void *allocator_data, void *pointer); + + /** Opaque pointer passed to `alloc` and `free` functions. */ + void *allocator_data; +}; + +/** + * Structure for the protobuf `bytes` scalar type. + * + * The data contained in a `ProtobufCBinaryData` is an arbitrary sequence of + * bytes. It may contain embedded `NUL` characters and is not required to be + * `NUL`-terminated. + */ +struct ProtobufCBinaryData { + size_t len; /**< Number of bytes in the `data` field. */ + uint8_t *data; /**< Data bytes. */ +}; + +/** + * Structure for defining a virtual append-only buffer. Used by + * protobuf_c_message_pack_to_buffer() to abstract the consumption of serialized + * bytes. + * + * `ProtobufCBuffer` "subclasses" may be defined on the stack. For example, to + * write to a `FILE` object: + * +~~~{.c} +typedef struct { + ProtobufCBuffer base; + FILE *fp; +} BufferAppendToFile; + +static void +my_buffer_file_append(ProtobufCBuffer *buffer, + size_t len, + const uint8_t *data) +{ + BufferAppendToFile *file_buf = (BufferAppendToFile *) buffer; + fwrite(data, len, 1, file_buf->fp); // XXX: No error handling! +} +~~~ + * + * To use this new type of ProtobufCBuffer, it could be called as follows: + * +~~~{.c} +... +BufferAppendToFile tmp = {0}; +tmp.base.append = my_buffer_file_append; +tmp.fp = fp; +protobuf_c_message_pack_to_buffer(&message, &tmp); +... +~~~ + */ +struct ProtobufCBuffer { + /** Append function. Consumes the `len` bytes stored at `data`. */ + void (*append)(ProtobufCBuffer *buffer, + size_t len, + const uint8_t *data); +}; + +/** + * Simple buffer "subclass" of `ProtobufCBuffer`. + * + * A `ProtobufCBufferSimple` object is declared on the stack and uses a + * scratch buffer provided by the user for the initial allocation. It performs + * exponential resizing, using dynamically allocated memory. A + * `ProtobufCBufferSimple` object can be created and used as follows: + * +~~~{.c} +uint8_t pad[128]; +ProtobufCBufferSimple simple = PROTOBUF_C_BUFFER_SIMPLE_INIT(pad); +ProtobufCBuffer *buffer = (ProtobufCBuffer *) &simple; +~~~ + * + * `buffer` can now be used with `protobuf_c_message_pack_to_buffer()`. Once a + * message has been serialized to a `ProtobufCBufferSimple` object, the + * serialized data bytes can be accessed from the `.data` field. + * + * To free the memory allocated by a `ProtobufCBufferSimple` object, if any, + * call PROTOBUF_C_BUFFER_SIMPLE_CLEAR() on the object, for example: + * +~~~{.c} +PROTOBUF_C_BUFFER_SIMPLE_CLEAR(&simple); +~~~ + * + * \see PROTOBUF_C_BUFFER_SIMPLE_INIT + * \see PROTOBUF_C_BUFFER_SIMPLE_CLEAR + */ +struct ProtobufCBufferSimple { + /** "Base class". */ + ProtobufCBuffer base; + /** Number of bytes allocated in `data`. */ + size_t alloced; + /** Number of bytes currently stored in `data`. */ + size_t len; + /** Data bytes. */ + uint8_t *data; + /** Whether `data` must be freed. */ + protobuf_c_boolean must_free_data; + /** Allocator to use. May be NULL to indicate the system allocator. */ + ProtobufCAllocator *allocator; +}; + +/** + * Describes an enumeration as a whole, with all of its values. + */ +struct ProtobufCEnumDescriptor { + /** Magic value checked to ensure that the API is used correctly. */ + uint32_t magic; + + /** The qualified name (e.g., "namespace.Type"). */ + const char *name; + /** The unqualified name as given in the .proto file (e.g., "Type"). */ + const char *short_name; + /** Identifier used in generated C code. */ + const char *c_name; + /** The dot-separated namespace. */ + const char *package_name; + + /** Number elements in `values`. */ + unsigned n_values; + /** Array of distinct values, sorted by numeric value. */ + const ProtobufCEnumValue *values; + + /** Number of elements in `values_by_name`. */ + unsigned n_value_names; + /** Array of named values, including aliases, sorted by name. */ + const ProtobufCEnumValueIndex *values_by_name; + + /** Number of elements in `value_ranges`. */ + unsigned n_value_ranges; + /** Value ranges, for faster lookups by numeric value. */ + const ProtobufCIntRange *value_ranges; + + /** Reserved for future use. */ + void *reserved1; + /** Reserved for future use. */ + void *reserved2; + /** Reserved for future use. */ + void *reserved3; + /** Reserved for future use. */ + void *reserved4; +}; + +/** + * Represents a single value of an enumeration. + */ +struct ProtobufCEnumValue { + /** The string identifying this value in the .proto file. */ + const char *name; + + /** The string identifying this value in generated C code. */ + const char *c_name; + + /** The numeric value assigned in the .proto file. */ + int value; +}; + +/** + * Used by `ProtobufCEnumDescriptor` to look up enum values. + */ +struct ProtobufCEnumValueIndex { + /** Name of the enum value. */ + const char *name; + /** Index into values[] array. */ + unsigned index; +}; + +/** + * Describes a single field in a message. + */ +struct ProtobufCFieldDescriptor { + /** Name of the field as given in the .proto file. */ + const char *name; + + /** Tag value of the field as given in the .proto file. */ + uint32_t id; + + /** Whether the field is `REQUIRED`, `OPTIONAL`, or `REPEATED`. */ + ProtobufCLabel label; + + /** The type of the field. */ + ProtobufCType type; + + /** + * The offset in bytes of the message's C structure's quantifier field + * (the `has_MEMBER` field for optional members or the `n_MEMBER` field + * for repeated members. + */ + unsigned quantifier_offset; + + /** + * The offset in bytes into the message's C structure for the member + * itself. + */ + unsigned offset; + + /** + * A type-specific descriptor. + * + * If `type` is `PROTOBUF_C_TYPE_ENUM`, then `descriptor` points to the + * corresponding `ProtobufCEnumDescriptor`. + * + * If `type` is `PROTOBUF_C_TYPE_MESSAGE`, then `descriptor` points to + * the corresponding `ProtobufCMessageDescriptor`. + * + * Otherwise this field is NULL. + */ + const void *descriptor; /* for MESSAGE and ENUM types */ + + /** The default value for this field, if defined. May be NULL. */ + const void *default_value; + + /** + * A flag word. Zero or more of the bits defined in the + * `ProtobufCFieldFlag` enum may be set. + */ + uint32_t flags; + + /** Reserved for future use. */ + unsigned reserved_flags; + /** Reserved for future use. */ + void *reserved2; + /** Reserved for future use. */ + void *reserved3; +}; + +/** + * Helper structure for optimizing int => index lookups in the case + * where the keys are mostly consecutive values, as they presumably are for + * enums and fields. + * + * The data structures requires that the values in the original array are + * sorted. + */ +struct ProtobufCIntRange { + int start_value; + unsigned orig_index; + /* + * NOTE: the number of values in the range can be inferred by looking + * at the next element's orig_index. A dummy element is added to make + * this simple. + */ +}; + +/** + * An instance of a message. + * + * `ProtobufCMessage` is a light-weight "base class" for all messages. + * + * In particular, `ProtobufCMessage` doesn't have any allocation policy + * associated with it. That's because it's common to create `ProtobufCMessage` + * objects on the stack. In fact, that's what we recommend for sending messages. + * If the object is allocated from the stack, you can't really have a memory + * leak. + * + * This means that calls to functions like protobuf_c_message_unpack() which + * return a `ProtobufCMessage` must be paired with a call to a free function, + * like protobuf_c_message_free_unpacked(). + */ +struct ProtobufCMessage { + /** The descriptor for this message type. */ + const ProtobufCMessageDescriptor *descriptor; + /** The number of elements in `unknown_fields`. */ + unsigned n_unknown_fields; + /** The fields that weren't recognized by the parser. */ + ProtobufCMessageUnknownField *unknown_fields; +}; + +/** + * Describes a message. + */ +struct ProtobufCMessageDescriptor { + /** Magic value checked to ensure that the API is used correctly. */ + uint32_t magic; + + /** The qualified name (e.g., "namespace.Type"). */ + const char *name; + /** The unqualified name as given in the .proto file (e.g., "Type"). */ + const char *short_name; + /** Identifier used in generated C code. */ + const char *c_name; + /** The dot-separated namespace. */ + const char *package_name; + + /** + * Size in bytes of the C structure representing an instance of this + * type of message. + */ + size_t sizeof_message; + + /** Number of elements in `fields`. */ + unsigned n_fields; + /** Field descriptors, sorted by tag number. */ + const ProtobufCFieldDescriptor *fields; + /** Used for looking up fields by name. */ + const unsigned *fields_sorted_by_name; + + /** Number of elements in `field_ranges`. */ + unsigned n_field_ranges; + /** Used for looking up fields by id. */ + const ProtobufCIntRange *field_ranges; + + /** Message initialisation function. */ + ProtobufCMessageInit message_init; + + /** Reserved for future use. */ + void *reserved1; + /** Reserved for future use. */ + void *reserved2; + /** Reserved for future use. */ + void *reserved3; +}; + +/** + * An unknown message field. + */ +struct ProtobufCMessageUnknownField { + /** The tag number. */ + uint32_t tag; + /** The wire type of the field. */ + ProtobufCWireType wire_type; + /** Number of bytes in `data`. */ + size_t len; + /** Field data. */ + uint8_t *data; +}; + +/** + * Method descriptor. + */ +struct ProtobufCMethodDescriptor { + /** Method name. */ + const char *name; + /** Input message descriptor. */ + const ProtobufCMessageDescriptor *input; + /** Output message descriptor. */ + const ProtobufCMessageDescriptor *output; +}; + +/** + * Service. + */ +struct ProtobufCService { + /** Service descriptor. */ + const ProtobufCServiceDescriptor *descriptor; + /** Function to invoke the service. */ + void (*invoke)(ProtobufCService *service, + unsigned method_index, + const ProtobufCMessage *input, + ProtobufCClosure closure, + void *closure_data); + /** Function to destroy the service. */ + void (*destroy)(ProtobufCService *service); +}; + +/** + * Service descriptor. + */ +struct ProtobufCServiceDescriptor { + /** Magic value checked to ensure that the API is used correctly. */ + uint32_t magic; + + /** Service name. */ + const char *name; + /** Short version of service name. */ + const char *short_name; + /** C identifier for the service name. */ + const char *c_name; + /** Package name. */ + const char *package; + /** Number of elements in `methods`. */ + unsigned n_methods; + /** Method descriptors, in the order defined in the .proto file. */ + const ProtobufCMethodDescriptor *methods; + /** Sort index of methods. */ + const unsigned *method_indices_by_name; +}; + +/** + * Get the version of the protobuf-c library. Note that this is the version of + * the library linked against, not the version of the headers compiled against. + * + * \return A string containing the version number of protobuf-c. + */ +PROTOBUF_C__API +const char * +protobuf_c_version(void); + +/** + * Get the version of the protobuf-c library. Note that this is the version of + * the library linked against, not the version of the headers compiled against. + * + * \return A 32 bit unsigned integer containing the version number of + * protobuf-c, represented in base-10 as (MAJOR*1E6) + (MINOR*1E3) + PATCH. + */ +PROTOBUF_C__API +uint32_t +protobuf_c_version_number(void); + +/** + * The version of the protobuf-c headers, represented as a string using the same + * format as protobuf_c_version(). + */ +#define PROTOBUF_C_VERSION "1.0.1" + +/** + * The version of the protobuf-c headers, represented as an integer using the + * same format as protobuf_c_version_number(). + */ +#define PROTOBUF_C_VERSION_NUMBER 1000001 + +/** + * The minimum protoc-c version which works with the current version of the + * protobuf-c headers. + */ +#define PROTOBUF_C_MIN_COMPILER_VERSION 1000000 + +/** + * Look up a `ProtobufCEnumValue` from a `ProtobufCEnumDescriptor` by name. + * + * \param desc + * The `ProtobufCEnumDescriptor` object. + * \param name + * The `name` field from the corresponding `ProtobufCEnumValue` object to + * match. + * \return + * A `ProtobufCEnumValue` object. + * \retval NULL + * If not found. + */ +PROTOBUF_C__API +const ProtobufCEnumValue * +protobuf_c_enum_descriptor_get_value_by_name( + const ProtobufCEnumDescriptor *desc, + const char *name); + +/** + * Look up a `ProtobufCEnumValue` from a `ProtobufCEnumDescriptor` by numeric + * value. + * + * \param desc + * The `ProtobufCEnumDescriptor` object. + * \param value + * The `value` field from the corresponding `ProtobufCEnumValue` object to + * match. + * + * \return + * A `ProtobufCEnumValue` object. + * \retval NULL + * If not found. + */ +PROTOBUF_C__API +const ProtobufCEnumValue * +protobuf_c_enum_descriptor_get_value( + const ProtobufCEnumDescriptor *desc, + int value); + +/** + * Look up a `ProtobufCFieldDescriptor` from a `ProtobufCMessageDescriptor` by + * the name of the field. + * + * \param desc + * The `ProtobufCMessageDescriptor` object. + * \param name + * The name of the field. + * \return + * A `ProtobufCFieldDescriptor` object. + * \retval NULL + * If not found. + */ +PROTOBUF_C__API +const ProtobufCFieldDescriptor * +protobuf_c_message_descriptor_get_field_by_name( + const ProtobufCMessageDescriptor *desc, + const char *name); + +/** + * Look up a `ProtobufCFieldDescriptor` from a `ProtobufCMessageDescriptor` by + * the tag value of the field. + * + * \param desc + * The `ProtobufCMessageDescriptor` object. + * \param value + * The tag value of the field. + * \return + * A `ProtobufCFieldDescriptor` object. + * \retval NULL + * If not found. + */ +PROTOBUF_C__API +const ProtobufCFieldDescriptor * +protobuf_c_message_descriptor_get_field( + const ProtobufCMessageDescriptor *desc, + unsigned value); + +/** + * Determine the number of bytes required to store the serialised message. + * + * \param message + * The message object to serialise. + * \return + * Number of bytes. + */ +PROTOBUF_C__API +size_t +protobuf_c_message_get_packed_size(const ProtobufCMessage *message); + +/** + * Serialise a message from its in-memory representation. + * + * This function stores the serialised bytes of the message in a pre-allocated + * buffer. + * + * \param message + * The message object to serialise. + * \param[out] out + * Buffer to store the bytes of the serialised message. This buffer must + * have enough space to store the packed message. Use + * protobuf_c_message_get_packed_size() to determine the number of bytes + * required. + * \return + * Number of bytes stored in `out`. + */ +PROTOBUF_C__API +size_t +protobuf_c_message_pack(const ProtobufCMessage *message, uint8_t *out); + +/** + * Serialise a message from its in-memory representation to a virtual buffer. + * + * This function calls the `append` method of a `ProtobufCBuffer` object to + * consume the bytes generated by the serialiser. + * + * \param message + * The message object to serialise. + * \param buffer + * The virtual buffer object. + * \return + * Number of bytes passed to the virtual buffer. + */ +PROTOBUF_C__API +size_t +protobuf_c_message_pack_to_buffer( + const ProtobufCMessage *message, + ProtobufCBuffer *buffer); + +/** + * Unpack a serialised message into an in-memory representation. + * + * \param descriptor + * The message descriptor. + * \param allocator + * `ProtobufCAllocator` to use for memory allocation. May be NULL to + * specify the default allocator. + * \param len + * Length in bytes of the serialised message. + * \param data + * Pointer to the serialised message. + * \return + * An unpacked message object. + * \retval NULL + * If an error occurred during unpacking. + */ +PROTOBUF_C__API +ProtobufCMessage * +protobuf_c_message_unpack( + const ProtobufCMessageDescriptor *descriptor, + ProtobufCAllocator *allocator, + size_t len, + const uint8_t *data); + +/** + * Free an unpacked message object. + * + * This function should be used to deallocate the memory used by a call to + * protobuf_c_message_unpack(). + * + * \param message + * The message object to free. + * \param allocator + * `ProtobufCAllocator` to use for memory deallocation. May be NULL to + * specify the default allocator. + */ +PROTOBUF_C__API +void +protobuf_c_message_free_unpacked( + ProtobufCMessage *message, + ProtobufCAllocator *allocator); + +/** + * Check the validity of a message object. + * + * Makes sure all required fields (`PROTOBUF_C_LABEL_REQUIRED`) are present. + * Recursively checks nested messages. + * + * \retval TRUE + * Message is valid. + * \retval FALSE + * Message is invalid. + */ +PROTOBUF_C__API +protobuf_c_boolean +protobuf_c_message_check(const ProtobufCMessage *); + +/** Message initialiser. */ +#define PROTOBUF_C_MESSAGE_INIT(descriptor) { descriptor, 0, NULL } + +/** + * Initialise a message object from a message descriptor. + * + * \param descriptor + * Message descriptor. + * \param message + * Allocated block of memory of size `descriptor->sizeof_message`. + */ +PROTOBUF_C__API +void +protobuf_c_message_init( + const ProtobufCMessageDescriptor *descriptor, + void *message); + +/** + * Free a service. + * + * \param service + * The service object to free. + */ +PROTOBUF_C__API +void +protobuf_c_service_destroy(ProtobufCService *service); + +/** + * Look up a `ProtobufCMethodDescriptor` by name. + * + * \param desc + * Service descriptor. + * \param name + * Name of the method. + * + * \return + * A `ProtobufCMethodDescriptor` object. + * \retval NULL + * If not found. + */ +PROTOBUF_C__API +const ProtobufCMethodDescriptor * +protobuf_c_service_descriptor_get_method_by_name( + const ProtobufCServiceDescriptor *desc, + const char *name); + +/** + * Initialise a `ProtobufCBufferSimple` object. + */ +#define PROTOBUF_C_BUFFER_SIMPLE_INIT(array_of_bytes) \ +{ \ + { protobuf_c_buffer_simple_append }, \ + sizeof(array_of_bytes), \ + 0, \ + (array_of_bytes), \ + 0, \ + NULL \ +} + +/** + * Clear a `ProtobufCBufferSimple` object, freeing any allocated memory. + */ +#define PROTOBUF_C_BUFFER_SIMPLE_CLEAR(simp_buf) \ +do { \ + if ((simp_buf)->must_free_data) { \ + if ((simp_buf)->allocator != NULL) \ + (simp_buf)->allocator->free( \ + (simp_buf)->allocator, \ + (simp_buf)->data); \ + else \ + free((simp_buf)->data); \ + } \ +} while (0) + +/** + * The `append` method for `ProtobufCBufferSimple`. + * + * \param buffer + * The buffer object to append to. Must actually be a + * `ProtobufCBufferSimple` object. + * \param len + * Number of bytes in `data`. + * \param data + * Data to append. + */ +PROTOBUF_C__API +void +protobuf_c_buffer_simple_append( + ProtobufCBuffer *buffer, + size_t len, + const uint8_t *data); + +PROTOBUF_C__API +void +protobuf_c_service_generated_init( + ProtobufCService *service, + const ProtobufCServiceDescriptor *descriptor, + ProtobufCServiceDestroy destroy); + +PROTOBUF_C__API +void +protobuf_c_service_invoke_internal( + ProtobufCService *service, + unsigned method_index, + const ProtobufCMessage *input, + ProtobufCClosure closure, + void *closure_data); + +/**@}*/ + +PROTOBUF_C__END_DECLS + +#endif /* PROTOBUF_C_H */ diff --git a/ccast/dpat.c b/ccast/dpat.c new file mode 100644 index 0000000..4962ae1 --- /dev/null +++ b/ccast/dpat.c @@ -0,0 +1,952 @@ + +/* + * Argyll Color Correction System + * ChromCast dither pattern code + * + * Author: Graeme W. Gill + * Date: 11/12/2014 + * + * Copyright 2014 Graeme W. Gill + * All rights reserved. + * + * This material is licenced under the GNU AFFERO GENERAL PUBLIC LICENSE Version 3 :- + * see the License2.txt file for licencing details. + * + */ + +/* + * Locates minimal list of surrounders + * Find initial weight for them using minimizer + Itterates over + * Locate cell changes that match desired correction + with increasing randomness of choosing a poor match + * Reset to starting pattern when accumulated error over + best current is exceeded. + + + Problem is this is unreliable is locating good matches + for some cases. + + Problem is that it doesn't seem to work - ChromeCast doesn't + decode the way we model it :-( + + */ + +#include +#include +#include +#include +#include +#include "copyright.h" +#include "aconfig.h" +#include "counters.h" +#ifndef SALONEINSTLIB +#include "numlib.h" +#else +#include "numsup.h" +#endif +#include "conv.h" +#include "base64.h" +#include "yajl.h" +#include "ccmdns.h" +#include "ccpacket.h" +#include "ccmes.h" +#include "ccast.h" + +#ifdef STANDALONE_TEST +# define DIAGNOSTICS +#endif + +#undef TEST_POINT + +/* Even/Odd filter filter index ranges (inclusive) and total size */ +#define EV_NEG -4 +#define EV_POS 4 +#define EV_WIDTH (-(EV_NEG) + 1 + EV_POS) +#define OD_NEG -4 +#define OD_POS 3 +#define OD_WIDTH (-(OD_NEG) + 1 + OD_POS) + +/* Weightings [horiz/vert] */ +double filt_v_ev[2][EV_WIDTH] = { +{ -0.003467, -0.048341, 0.028688, 0.418873, 0.704674, 0.427551, 0.032480, -0.050146, -0.003793 }, +{ -0.013477, 0.000081, -0.087119, 0.357627, 1.000252, 0.378473, -0.083496, -0.000155, -0.009850 } +}; + +/* Weightings [horiz/vert] */ +double filt_v_od[2][OD_WIDTH] = { +{ -0.026810, -0.045190, 0.186825, 0.614579, 0.623721, 0.206987, -0.040217, -0.026419 }, +{ 0.008396, -0.078987, -0.013733, 0.796594, 0.813578, 0.013555, -0.086466, 0.004781 } +}; + + +/* [horiz/vert][phase] */ +double *filt[2][2] = { { &filt_v_ev[0][-(EV_NEG)], &filt_v_od[0][-(OD_NEG)] }, + { &filt_v_ev[1][-(EV_NEG)], &filt_v_od[1][-(OD_NEG)] } }; + +/* [phase] */ +int fneg[2] = { EV_NEG, OD_NEG }; +int fpos[2] = { EV_POS, OD_POS }; + +/* Dither input size */ +#ifdef TEST_POINT +# define DISIZE 8 +#else +# define DISIZE CCDITHSIZE +#endif +#define DOSIZE ((DISIZE * 3)/2) + +#ifdef DIAGNOSTICS +int vv = 0; +#endif + +/* Upsample ipat to opat */ +/* And return the average RGB value */ +static void upsample(double ret[3], double iipat[DISIZE][DISIZE][3]) { + double ipat[DISIZE][DISIZE][3]; + double tpat[DOSIZE][DISIZE][3]; /* Intermediate pattern - horizontal up-sampled */ + double opat[DOSIZE][DOSIZE][3]; /* Output pattern */ + int x, y; + int i, j; + +//printf("~1 doing conversion\n"); + /* Convert from RGB to YCbCr */ + for (x = 0; x < DISIZE; x++) { + for (y = 0; y < DISIZE; y++) { + ccast2YCbCr(NULL, ipat[x][y], iipat[x][y]); +// ipat[x][y][0] = iipat[x][y][0]; +// ipat[x][y][1] = iipat[x][y][1]; +// ipat[x][y][2] = iipat[x][y][2]; +//printf("[%d][%d] %f %f %f -> %f %f %f\n",x,y, iipat[x][y][0], iipat[x][y][1], iipat[x][y][2], ipat[x][y][0], ipat[x][y][1], ipat[x][y][2]); + } + } + +//printf("~1 doing horiz\n"); + /* Up-sample in horizontal direction */ + for (y = 0; y < DISIZE; y++) { + + /* Zero the intermediate pattern */ + for (i = 0; i < DOSIZE; i++) { + tpat[i][y][0] = 0.0; + tpat[i][y][1] = 0.0; + tpat[i][y][2] = 0.0; + } + + /* Distribute the input according to the filter */ + for (x = 0; x < DISIZE; x++) { + int ph, ii, k; + + ph = x & 1; + ii = (int)floor(x * 1.5 + 0.5); + + /* For all the filter cooeficients */ + for (k = fneg[ph]; k <= fpos[ph]; k++) { + i = (ii + k); + while (i < 0) + i += DOSIZE; + while (i >= DOSIZE) + i -= DOSIZE; + tpat[i][y][0] += filt[0][ph][k] * ipat[x][y][0]; + tpat[i][y][1] += filt[0][ph][k] * ipat[x][y][1]; + tpat[i][y][2] += filt[0][ph][k] * ipat[x][y][2]; + } + } + } + +//printf("~1 doing vert\n"); + /* Up-sample in vertical direction */ + for (i = 0; i < DOSIZE; i++) { + + /* Zero the output pattern */ + for (j = 0; j < DOSIZE; j++) { + opat[i][j][0] = 0.0; + opat[i][j][1] = 0.0; + opat[i][j][2] = 0.0; + } + + /* Distribute the input according to the filter */ + for (y = 0; y < DISIZE; y++) { + int ph, jj, k; + + ph = y & 1; + jj = (int)floor(y * 1.5 + 0.5); + + /* For all the filter cooeficients */ + for (k = fneg[ph]; k <= fpos[ph]; k++) { + j = (jj + k); + while (j < 0) + j += DOSIZE; + while (j >= DOSIZE) + j -= DOSIZE; + opat[i][j][0] += filt[1][ph][k] * tpat[i][y][0]; + opat[i][j][1] += filt[1][ph][k] * tpat[i][y][1]; + opat[i][j][2] += filt[1][ph][k] * tpat[i][y][2]; + } + } + } +//printf("~1 doing conversion\n"); + + /* Convert from YCbCr to RGB */ + for (i = 0; i < DOSIZE; i++) { + for (j = 0; j < DOSIZE; j++) { + YCbCr2ccast(NULL, opat[i][j], opat[i][j]); + } + } +//printf("~1 done\n"); + + if (ret != NULL) { + ret[0] = ret[1] = ret[2] = 0.0; + for (j = 0; j < DOSIZE; j++) { + for (i = 0; i < DOSIZE; i++) { + ret[0] += opat[i][j][0]; + ret[1] += opat[i][j][1]; + ret[2] += opat[i][j][2]; + } + } + ret[0] /= (double)(DOSIZE * DOSIZE); + ret[1] /= (double)(DOSIZE * DOSIZE); + ret[2] /= (double)(DOSIZE * DOSIZE); + } + +#ifdef DIAGNOSTICS + if (vv) { + printf("Result\n"); + for (j = 0; j < DOSIZE; j++) { + for (i = 0; i < DOSIZE; i++) { + if (i > 0) + printf(", "); + printf("% 5.1f % 5.1f % 5.1f",opat[i][j][0],opat[i][j][1], opat[i][j][2]); + } + printf("\n"); + } + } +#endif +} + +/* ------------------------------------------------------------- */ + +/* Given a quantized RGB target, return a quantized RGB that either exactly */ +/* maps to it through YCbCr conversion, or is the closest in the */ +/* direction away from the target value, or the closest clipped value */ +static void quant_rgb(int n, double out[3], double rgb[3]) { + double ycc[3], base[3]; + double tmp[3], chval[3]; + double dist, bdist = 1e6; + double brgb[3], borgb[3]; + int ix, k; + +//printf("Quant RGB %f %f %f n %d\n", rgb[0], rgb[1], rgb[2], n); + + /* Search current rgb and surround in the same direction */ + /* it is from the target value, for a quantized rgb */ + /* that is in that direction */ + for (k = 0; k < 3; k++) + base[k] = rgb[k]; + + for (ix = 0; ix < 8; ix++) { + double dist; + + /* Comp trial RGB */ + for (k = 0; k < 3; k++) { + tmp[k] = base[k]; + if (ix & (1 << k)) { + if (n & (1 << k)) /* Move in direction base point is in */ + tmp[k] += 1.0; + else + tmp[k] -= 1.0; + if (tmp[k] < 0.0 || tmp[k] > 255.0) + break; + } + } + if (k < 3) /* Trial is out of gamut */ + continue; + + /* Quantize it */ + ccast2YCbCr(NULL, ycc, tmp); + YCbCr2ccast(NULL, chval, ycc); +//printf("Trial RGB %f %f %f\n", tmp[0], tmp[1], tmp[2]); +//printf(" result %f %f %f\n", chval[0], chval[1], chval[2]); + + /* It's OK if it is eual or greater in the desired */ + /* direction than the input rgb. */ + /* Best would be closest to input. */ + /* Least worst would be what ? */ + + dist = 0.0; + for (k = 0; k < 3; k++) { + double tt; + if (n & (1 << k)) { + tt = chval[k] - base[k]; + } else { + tt = base[k] - chval[k]; + } + if (tt >= 0.0) + dist += 0.1 * tt; + else + dist += 2.0 * -tt; + } +//printf(" dist %f\n", dist); + + /* Pick it if it is at least in the right direction */ + if (dist < bdist) { + for (k = 0; k < 3; k++) { + rgb[k] = tmp[k]; + out[k] = chval[k]; + } + bdist = dist; + } + } + +#ifdef NEVER + if (bdist > 0.0 + && rgb[0] != 0.0 && rgb[0] != 1.0 && rgb[0] != 254.0 && rgb[0] != 255.0 + && rgb[1] != 0.0 && rgb[1] != 1.0 && rgb[1] != 254.0 && rgb[1] != 255.0 + && rgb[2] != 0.0 && rgb[2] != 1.0 && rgb[2] != 254.0 && rgb[2] != 255.0) { + printf("quant_rgb failed with bdist %f\n",bdist); + printf(" rgb in %f %f %f\n",base[0],base[1],base[2]); + printf(" returning rgb %f %f %f\n",rgb[0],rgb[1],rgb[2]); + printf(" resrgb %f %f %f\n",out[0],out[1],out[2]); + } +#endif /* NEVER */ +} + +/* - - - - - - - - - - - - - - - - - - - - - - - - - */ + +typedef struct optcntx { + int di; + double *val; /* Target */ + double (*ressur)[8][3]; /* resulting RGB surrounding values */ +} optcntx; + +static double optfunc(void *fdata, double tp[]) { + optcntx *cntx = (optcntx *)fdata; + int i, k; + double iw, tmp[3]; + double err = 0.0; + + /* Compute interpolated result */ + for (k = 0; k < 3; k++) + tmp[k] = 0.0; + + iw = 1.0; + for (i = 0; i < cntx->di; i++) { + if (tp[i] < 0.0) + err += 1000.0 * tp[i] * tp[i]; + else if (tp[i] > 1.0) + err += 1000.0 * (tp[i] - 1.0) * (tp[i] - 1.0); + + for (k = 0; k < 3; k++) + tmp[k] += tp[i] * (*cntx->ressur)[i][k]; + iw -= tp[i]; + } + for (k = 0; k < 3; k++) + tmp[k] += iw * (*cntx->ressur)[i][k]; + + /* Compute error */ + for (k = 0; k < 3; k++) { + double tt = tmp[k] - cntx->val[k]; + err += tt * tt; + } +//printf("Returning %f from %f %f\n",err,tp[0],tp[1]); + return err; +} + +/* Compute pattern */ +/* return the delta to the target */ +double get_ccast_dith(double ipat[DISIZE][DISIZE][3], double val[3]) { + double itpat[DISIZE][DISIZE][3], tpat[DISIZE][DISIZE][3]; + double irtpat[DISIZE][DISIZE][3], rtpat[DISIZE][DISIZE][3]; /* resulting for tpat */ + double berr = 0.0; + int n, k; + int x, y; + int i, j; + int ii; + struct { + int x, y; + } order[16] = { +// Dispersed: + { 3, 1 },{ 1, 3 },{ 1, 1 },{ 3, 0 },{ 3, 3 },{ 1, 2 },{ 3, 2 },{ 2, 0 }, + { 1, 0 },{ 0, 3 },{ 0, 1 },{ 2, 1 },{ 2, 2 },{ 0, 0 },{ 0, 2 },{ 2, 3 } +// Clustered: +// { 0, 0 },{ 0, 1 },{ 1, 1 },{ 1, 0 },{ 2, 0 },{ 3, 0 },{ 3, 1 },{ 2, 1 }, +// { 2, 2 },{ 3, 2 },{ 3, 3 },{ 2, 3 },{ 1, 3 },{ 1, 2 },{ 0, 2 },{ 0, 3 } + }; + int cix = 0; + int nsur = 8, ncomb = 4; + double sur[8][3]; /* RGB surrounding values to use */ + double ressur[8][3]; /* resulting RGB surrounding values */ + int bcc[8]; /* Best combination */ + double bw[8]; /* Best weight */ + int biw[8]; /* Best integer weight/16 */ + double dval[3]; /* Dithered value */ + double err[3], werr; + double errxs; + /* Tuning params */ + int nitters = 300; /* No itters */ + int rand_count = 150; + double rand_start = 4.5; /* Ramp with itters */ + double rand_end = 0.2; + double rand_pow = 1.5; + double mxerrxs = 2.5; /* accumulated error reset threshold */ + unsigned int randv = 0x1234; + + /* 32 bit pseudo random sequencer based on XOR feedback */ + /* generates number between 1 and 4294967295 */ +#define PSRAND32(S) (((S) & 0x80000000) ? (((S) << 1) ^ 0xa398655d) : ((S) << 1)) + + /* Locate the 8 surrounding RGB verticies */ + for (n = 0; n < 8; n++) { + for (k = 0; k < 3; k++) { + if (n & (1 << k)) + sur[n][k] = ceil(val[k]); + else + sur[n][k] = floor(val[k]); + } + +//printf("Input sur %d: %f %f %f\n",n,sur[n][0], sur[n][1], sur[n][2], sur[n][3]); + /* Figure out what RGB values to use to surround the point, */ + /* and what actual RGB values to expect from using them. */ + quant_rgb(n, ressur[n], sur[n]); +//printf("Quant sur %d: %f %f %f\n",n,sur[n][0], sur[n][1], sur[n][2], sur[n][3]); +//printf(" ressur %d: %f %f %f\n",n,ressur[n][0], ressur[n][1], ressur[n][2], ressur[n][3]); +// printf("\n"); + } + + /* Reduce this to unique surrounders */ + for (nsur = 0, i = 0; i < 8; i++) { + + /* Check if the i'th entry is already in the list */ + for (j = 0; j < nsur; j++) { + for (k = 0; k < 3; k++) { + if (ressur[i][k] != ressur[j][k]) + break; + } + if (k < 3) + continue; /* Unique */ + break; /* Duplicate */ + } + if (j < nsur) /* Duplicate */ + continue; + + /* Copy i'th to nsur */ + for (k = 0; k < 3; k++) { + sur[nsur][k] = sur[i][k]; + ressur[nsur][k] = ressur[i][k]; + } + nsur++; + } + +#ifdef DIAGNOSTICS + if (vv) { + printf("There are %d unique surrounders:\n",nsur); + for (n = 0; n < nsur; n++) { + printf("sur %f %f %f\n",ressur[n][0], ressur[n][1], ressur[n][2], ressur[n][3]); + } + } +#endif + + /* Use an optimzer to set the initial values using all the unique */ + /* surrounders. */ + { + double s[8]; + optcntx cntx; + + ncomb = nsur; + for (n = 0; n < nsur; n++) { + bcc[n] = n; + bw[n] = 1.0/nsur; + s[n] = 0.1; + } + + cntx.di = nsur-1; + cntx.val = val; + cntx.ressur = &ressur; + + powell(NULL, cntx.di, bw, s, 1e-4, 1000, optfunc, &cntx, NULL, NULL); + + /* Compute baricentric values */ + bw[nsur-1] = 0.0; + for (n = 0; n < (nsur-1); n++) { + if (bw[n] < 0.0) + bw[n] = 0.0; + else if (bw[n] > 1.0) + bw[n] = 1.0; + bw[nsur-1] += bw[n]; + } + if (bw[nsur-1] > 1.0) { /* They summed to over 1.0 */ + for (n = 0; n < (nsur-1); n++) + bw[n] *= 1.0/bw[nsur-1]; /* Scale them down */ + bw[nsur-1] = 1.0; + } + bw[nsur-1] = 1.0 - bw[nsur-1]; /* Remainder */ + } + + /* Check the result */ +#ifdef DIAGNOSTICS + if (vv) { + double tmp[3], err; + + /* Compute interpolated result */ + for (k = 0; k < 3; k++) + tmp[k] = 0.0; + for (n = 0; n < ncomb; n++) { + for (k = 0; k < 3; k++) + tmp[k] += bw[n] * ressur[bcc[n]][k]; + } + /* Compute error */ + err = 0.0; + for (k = 0; k < 3; k++) { + tmp[k] -= val[k]; + err += tmp[k] * tmp[k]; + } + err = sqrt(err); + for (n = 0; n < ncomb; n++) + printf("Comb %d weight %f rgb %f %f %f\n",bcc[n],bw[n],ressur[bcc[n]][0],ressur[bcc[n]][1],ressur[bcc[n]][2]); + printf("Error %f %f %f rms %f\n",tmp[0], tmp[1], tmp[2], err); + printf("\n"); + } +#endif + + /* Compute the number of pixels for each surounder value */ + { + int sw[8], rem; + + /* Sort the weightings from smallest to largest */ + for (n = 0; n < 8; n++) + sw[n] = n; + + for (i = 0; i < (ncomb-1); i++) { + for (j = i+1; j < ncomb; j++) { + if (bw[sw[j]] < bw[sw[i]]) { + int tt = sw[i]; /* Swap them */ + sw[i] = sw[j]; + sw[j] = tt; + } + } + } + + /* Compute the nearest integer weighting out of 16 */ + rem = 16; + for (i = 0; i < (ncomb-1) && rem > 0; i++) { + n = sw[i]; + biw[n] = (int)(16.0 * bw[n] + 0.5); + rem -= biw[n]; + if (rem <= 0) + rem = 0; + } + for (; i < ncomb; i++) { + n = sw[i]; + biw[n] = rem; + } +#ifdef DIAGNOSTICS + if (vv) { + for (n = 0; n < ncomb; n++) + printf("Comb %d iweight %i rgb %f %f %f\n",bcc[n],biw[n],ressur[bcc[n]][0],ressur[bcc[n]][1],ressur[bcc[n]][2]); + } +#endif + } + + /* Set the initial pattern according to the integer weighting */ + for (cix = 0, n = 0; n < ncomb; n++) { + for (i = 0; i < biw[n]; i++) { + x = order[cix].x; + y = order[cix].y; + cix++; + for (k = 0; k < 3; k++) { + tpat[x][y][k] = itpat[x][y][k] = sur[bcc[n]][k]; + rtpat[x][y][k] = irtpat[x][y][k] = ressur[bcc[n]][k]; + } + } + } + +#ifdef DIAGNOSTICS + /* Check initial pattern error */ + if (vv) { + printf("Input pat:\n"); + for (x = 0; x < DISIZE; x++) { + for (y = 0; y < DISIZE; y++) { + if (y > 0) + printf(", "); + printf("%3.0f %3.0f %3.0f",rtpat[x][y][0], rtpat[x][y][1], rtpat[x][y][2]); + } + printf("\n"); + } + } +#endif + + upsample(dval, rtpat); + + werr = 0.0; + for (k = 0; k < 3; k++) { + err[k] = dval[k] - val[k]; + if (fabs(err[k]) > werr) + werr = fabs(err[k]); + } + +#ifdef DIAGNOSTICS + if (vv) { + printf("Target %f %f %f -> %f %f %f\n", val[0], val[1], val[2], dval[0], dval[1], dval[2]); + printf("Error %f %f %f werr %f\n", err[0], err[1], err[2], werr); + } +#endif + + berr = werr; + for (x = 0; x < DISIZE; x++) { + for (y = 0; y < DISIZE; y++) { + for (k = 0; k < 3; k++) + ipat[x][y][k] = tpat[x][y][k]; + } + } + + /* Improve fit if needed */ + /* This is a bit stocastic */ + errxs = 0.0; + for (ii = 0; ii < nitters; ii++) { /* Until we give up */ + double corr[3]; /* Correction direction needed */ + double bdot; + int bx, by; + + double wycc, mm; + double cell[3]; /* Cell being modified value */ + double ccell[3]; /* Corrected cell */ + double pcell[3]; /* Proposed new cell value */ + + for (k = 0; k < 3; k++) + corr[k] = val[k] - dval[k]; +#ifdef DIAGNOSTICS + if (vv) + printf("corr needed %f %f %f\n", corr[0], corr[1], corr[2]); +#endif + + /* Scale it and limit it */ + for (k = 0; k < 3; k++) { + double dd = 16.0 * corr[k]; + if (dd >= 1.0) + dd = 1.0; + else if (dd <= -1.0) + dd = -1.0; + else + dd = 0.0; + corr[k] = dd; + } + + if (corr[0] == 0.0 && corr[1] == 0 && corr[2] == 0.0) { +#ifdef DIAGNOSTICS + if (vv) + printf("No correction possible - done\n"); +#endif + break; + } + +#ifdef DIAGNOSTICS + if (vv) + printf("scaled corr %f %f %f\n", corr[0], corr[1], corr[2]); +#endif + + /* Search dither cell and surrounder for a combination */ + /* that is closest to the change we want to make. */ + bdot = 1e6; + bx = by = n = 0; + for (x = 0; x < DISIZE; x++) { + double rlevel = rand_start + (rand_end - rand_start) + * pow((ii % rand_count)/rand_count, rand_pow); + + for (y = 0; y < DISIZE; y++) { + for (i = 0; i < ncomb; i++) { + double dot = 0.0; + for (k = 0; k < 3; k++) + dot += (ressur[bcc[i]][k] - rtpat[x][y][k]) * corr[k]; + + /* Ramp the randomness up */ +// dot += d_rand(0.0, 0.1 + (2.5-0.1) * ii/nitters); +// dot += d_rand(-rlevel, rlevel); + /* use a deterministic random element, so that */ + /* the dither patterns are repeatable. */ + randv = PSRAND32(randv); + dot += rlevel * 2.0 * ((randv - 1)/4294967294.0 - 0.5); + + if (dot <= 0.0) + dot = 1e7; + else { + dot = (dot - 1.0) * (dot - 1.0); + } +//printf("dot %f from sur %f %f %f to pat %f %f %f\n", dot, ressur[bcc[i]][0], ressur[bcc[i]][1], ressur[bcc[i]][2], rtpat[x][y][0], rtpat[x][y][1], rtpat[x][y][2]); + + if (dot < bdot) { + bdot = dot; + bx = x; + by = y; + n = i; + } + } + } + } + +#ifdef DIAGNOSTICS + if (vv) { + printf("Changing cell [%d][%d] %f %f %f with dot %f\n",bx,by,rtpat[bx][by][0],rtpat[bx][by][1],rtpat[bx][by][2],bdot); + printf(" to sur %d: %f %f %f\n",n, ressur[bcc[n]][0], ressur[bcc[n]][1], ressur[bcc[n]][2]); + } +#endif + + /* Substitute the best correction for this cell */ + for (k = 0; k < 3; k++) { + tpat[bx][by][k] = sur[bcc[n]][k]; + rtpat[bx][by][k] = ressur[bcc[n]][k]; + } + +#ifdef DIAGNOSTICS + if (vv) { + printf("Input pat:\n"); + for (x = 0; x < DISIZE; x++) { + for (y = 0; y < DISIZE; y++) { + if (y > 0) + printf(", "); + printf("%3.0f %3.0f %3.0f",rtpat[x][y][0], rtpat[x][y][1], rtpat[x][y][2]); + } + printf("\n"); + } + } +#endif + + upsample(dval, rtpat); + + werr = 0.0; + for (k = 0; k < 3; k++) { + err[k] = dval[k] - val[k]; + if (fabs(err[k]) > werr) + werr = fabs(err[k]); + } + + if (werr > berr) { + errxs += werr - berr; + } + + /* New best */ + if (werr < berr) { + berr = werr; + errxs = 0.0; + for (x = 0; x < DISIZE; x++) { + for (y = 0; y < DISIZE; y++) { + for (k = 0; k < 3; k++) { + ipat[x][y][k] = tpat[x][y][k]; + + itpat[x][y][k] = tpat[x][y][k]; + irtpat[x][y][k] = rtpat[x][y][k]; + } + } + } + } + +#ifdef DIAGNOSTICS + if (vv) { + printf("Target %f %f %f -> %f %f %f\n", val[0], val[1], val[2], dval[0], dval[1], dval[2]); + printf("Error %f %f %f werr %f\n", err[0], err[1], err[2], werr); + } +#endif + + if (berr < 0.11) { +#ifdef DIAGNOSTICS + if (vv) + printf("best error %f < 0.11 - give up\n",berr); +#endif + break; + } + + /* If we're not making progress, reset to the last best */ + if (errxs > mxerrxs) { +#ifdef DIAGNOSTICS + if (vv) + printf("Restarting at ii %d \n",ii); +#endif + errxs = 0.0; + for (x = 0; x < DISIZE; x++) { + for (y = 0; y < DISIZE; y++) { + for (k = 0; k < 3; k++) { + tpat[x][y][k] = itpat[x][y][k]; + rtpat[x][y][k] = irtpat[x][y][k]; + } + } + } + } + } + +#ifdef DIAGNOSTICS + if (vv) { + printf("Returning best error %f pat:\n",berr); + for (y = 0; y < DISIZE; y++) { + for (x = 0; x < DISIZE; x++) { + if (x > 0) + printf(", "); + printf("%3.0f %3.0f %3.0f",ipat[x][y][0], ipat[x][y][1], ipat[x][y][2]); + } + printf("\n"); + } + } +#endif + + return berr; +} + +/* ====================================================================================== */ + +#ifdef STANDALONE_TEST + +int +main(int argc, + char *argv[] +) { + double val[3], out[3], err; + double ipat[DISIZE][DISIZE][3]; + double aerr, acount, xerr; + int x, y; + int i, j; + int k, nn; + + printf("Hi there\n"); + + rand32(time(NULL)); + +#ifdef TEST_POINT + for (x = 0; x < DISIZE; x++) { + for (y = 0; y < DISIZE; y++) { + ipat[x][y][0] = 0.0; + ipat[x][y][1] = 0.0; + ipat[x][y][2] = 0.0; + } + } + + ipat[5][4][0] = 255.0; + ipat[5][4][1] = 255.0; + ipat[5][4][2] = 255.0; + + upsample(NULL, ipat); + +#else + +#ifdef NEVER + +// val[0] = 201.500000; +// val[1] = 115.533403; +// val[2] = 76.300000; + +// val[0] = 255.000000; +// val[1] = 115.533403; +// val[2] = 255.000000; + +// val[0] = 221.689875; +// val[1] = 29.593255; +// val[2] = 140.820878; + +// val[0] = 212.377797; +// val[1] = 228.338903; +// val[2] = 70.153296; + +// val[0] = 231.554511; +// val[1] = 0.000000; +// val[2] = 51.958048; + +// val[0] = 255.000000; +// val[1] = 144.768052; +// val[2] = 179.737212; + +// val[0] = 194.854956; +// val[1] = 41.901887; +// val[2] = 20.434793; + +// val[0] = 250.100121; +// val[1] = 83.484217; +// val[2] = 42.867603; + +// val[0] = 255.000000; +// val[1] = 255.000000; +// val[2] = 228.534759; + + // 1.71 -> 1.58, rand 2.2 +// val[0] = 255.000000; +// val[1] = 176.894769; +// val[2] = 8.932806; + + // 1.54 -> 0.762592, rand 0.3 +// val[0] = 216.873703; +// val[1] = 250.908094; + + // 1.05 +// val[0] = 167.284458; +// val[1] = 248.945210; +// val[2] = 199.023452; + + // 1.07 +// val[0] = 211.045184; +// val[1] = 27.825141; +// val[2] = 63.883148; + + // 1.928 +// val[0] = 255.000000; +// val[1] = 0.439284; +// val[2] = 210.928135; + + // 1.278 +// val[0] = 218.693614; +// val[1] = 222.890101; +// val[2] = 174.779727; + + // 1.334501 +// val[0] = 253.931573; +// val[1] = 230.278945; +// val[2] = 185.677389; + +// printf("In RGB %f %f %f\n",val[0],val[1],val[2]); +// ccast2YCbCr(NULL, out, val); +// printf("YCbCr %f %f %f\n",out[0],out[1],out[2]); +// YCbCr2ccast(NULL, out, out); +// printf("RGB %f %f %f\n",out[0],out[1],out[2]); + + + vv = 1; + err = get_ccast_dith(ipat, val); + + printf("Got pat with err %f\n",err); + +#else + aerr = 0.0; + acount = 0.0; + xerr = 0.0; + for (nn = 0; nn < 200000; nn++) { + + for (k = 0; k < 3; k++) { + val[k] = d_rand(-5.0, 255.0 + 5.0); + if (val[k] < 0.0) + val[k] = 0.0; + else if (val[k] > 255.0) + val[k] = 255.0; + } + + err = get_ccast_dith(ipat, val); + + if (err >= 1.5 || + ( err >= 1.0 + && val[0] != 0.0 && val[0] != 255.0 + && val[1] != 0.0 && val[1] != 255.0 + && val[2] != 0.0 && val[2] != 255.0)) { + printf("Target RGB %f %f %f, err %f\n", val[0], val[1], val[2],err); +// vv = 1; +// comput_pat(ipat, val); +// break; + } + + aerr += err; + acount++; + if (err > xerr) + xerr = err; + } + + aerr /= acount; + printf("After %d trials, aerr = %f, maxerr = %f\n",nn,aerr,xerr); +#endif +#endif + + return 0; +} + +#endif /* STANDALONE_TEST */ diff --git a/ccast/filt.c b/ccast/filt.c new file mode 100644 index 0000000..ab075ae --- /dev/null +++ b/ccast/filt.c @@ -0,0 +1,531 @@ + +/* + * Argyll Color Correction System + * ChromCast up filter test code. + * + * Author: Graeme W. Gill + * Date: 28/8/2014 + * + * Copyright 2014 Graeme W. Gill + * All rights reserved. + * + * This material is licenced under the GNU AFFERO GENERAL PUBLIC LICENSE Version 3 :- + * see the License2.txt file for licencing details. + * + */ + +#include +#include +#include +#include +#include +#include "copyright.h" +#include "aconfig.h" +#ifndef SALONEINSTLIB +#include "numlib.h" +#else +#include "numsup.h" +#endif +#include "yajl.h" +#include "conv.h" +#include "base64.h" +#include "ccmdns.h" +#include "ccpacket.h" +#include "ccmes.h" +#include "yajl.h" + +#define DO_WEIGHTING +#define SUM_CONSTRAINT + +//#define VERT 1 /* 1 for vertical */ + +#ifndef DBL_PI +# define DBL_PI 3.1415926535897932384626433832795 +#endif + +double lanczos3(double wi, double x) { + double y; + + x = fabs(1.0 * x/wi); + if (x >= 3.0) + return 0.0; + if (x < 1e-6) + return 1.0; + y = sin(DBL_PI * x)/(DBL_PI * x) * sin(DBL_PI * x/3.0)/(DBL_PI * x/3.0); + + return y; +} + +double lanczos2(double wi, double x) { + double y; + + x = fabs(1.0 * x/wi); + if (x >= 2.0) + return 0.0; + if (x < 1e-6) + return 1.0; + y = sin(DBL_PI * x)/(DBL_PI * x) * sin(DBL_PI * x/2.0)/(DBL_PI * x/2.0); + + return y; +} + +double in[2][72] = { +{ // Horizontal +255, 0, 0, 0, 0, 0, 0, 0, 0, +255, 0, 0, 0, 0, 0, 0, 0, 0, +254, 0, 0, 0, 0, 0, 0, 0, 0, +254, 0, 0, 0, 0, 0, 0, 0, 0, +253, 0, 0, 0, 0, 0, 0, 0, 0, +253, 0, 0, 0, 0, 0, 0, 0, 0, +252, 0, 0, 0, 0, 0, 0, 0, 0, +252, 0, 0, 0, 0, 0, 0, 0, 0 +}, { // Vertical slice input target +255, 0, 0, 0, 0, 0, 0, 0, 0, +255, 0, 0, 0, 0, 0, 0, 0, 0, +254, 0, 0, 0, 0, 0, 0, 0, 0, +254, 0, 0, 0, 0, 0, 0, 0, 0, +253, 0, 0, 0, 0, 0, 0, 0, 0, +253, 0, 0, 0, 0, 0, 0, 0, 0, +252, 0, 0, 0, 0, 0, 0, 0, 0, +252, 0, 0, 0, 0, 0, 0, 0, 0 +} }; + +#ifdef NEVER +double out[2][] = { +{ // Horizontal +170, 110, 23, 5, 15, 17, 16, 16, 16, 17, 10, 6, 57, +151, 153, 61, 7, 10, 16, 16, 16, 16, 17, 15, 5, 22, +107, 169, 109, 23, 5, 15, 17, 16, 16, 16, 17, 10, 6, 57, +150, 152, 61, 7, 10, 16, 16, 16, 16, 17, 15, 5, 22, +107, 168, 109, 23, 5, 15, 17, 16, 16, 16, 17, 10, 6, 56, +149, 151, 61, 7, 10, 16, 16, 16, 16, 17, 15, 6, 22, +106, 167, 108, 23, 5, 15, 17, 16, 16, 16, 17, 10, 6, 56, +148, 150 +}, +{ // Vertical slice target output +235, 100, 0, 16, 16, 16, 16, 16, 16, 16, 20, 1, 13, +191, 194, 19, 0, 20, 16, 16, 16, 16, 16, 16, 16, 0, 95, +234, 99, 0, 16, 16, 16, 16, 16, 16, 16, 20, 1, 13, +190, 194, 19, 0, 20, 16, 16, 16, 16, 16, 16, 16, 0, 94, +233, 99, 0, 16, 16, 16, 16, 16, 16, 16, 20, 1, 13, +189, 193, 19, 0, 20, 16, 16, 16, 16, 16, 16, 16, 0, 94, +232, 99, 0, 16, 16, 16, 16, 16, 16, 16, 20, 1, 13, +188, 192 +} +}; +#else +//#define N1 -9 +//#define N2 -8 +#define N1 0 +#define N2 0 + +//#define N3 1 +#define N4 0 + +double out[2][96] = { +{ // Horozontal +170, 110, 23, 5, 15, 17, 16, 16, 16, 17, 10, 6, 57, +151, 153, 61, 7, 10, 16, 16, 16, 16, 17, 15, 5, 22, +107, 169, 109, 23, 5, 15, 17, 16, 16, 16, 17, 10, 6, 57, +150, 152, 61, 7, 10, 16, 16, 16, 16, 17, 15, 5, 22, +107, 168, 109, 23, 5, 15, 17, 16, 16, 16, 17, 10, 6, 56, +149, 151, 61, 7, 10, 16, 16, 16, 16, 17, 15, 6, 22, +106, 167, 108, 23, 5, 15, 17, 16, 16, 16, 17, 10, 6, 56, +148, 150 +}, +{ // Vertical slice target output +235, 100, N2, 16, 16, 16, 16, 16, 16, 16, 20, 1, 13, +191, 194, 19, N4, 20, 16, 16, 16, 16, 16, 16, 16, N1, 95, +234, 99, N2, 16, 16, 16, 16, 16, 16, 16, 20, 1, 13, +190, 194, 19, N4, 20, 16, 16, 16, 16, 16, 16, 16, N1, 94, +233, 99, N2, 16, 16, 16, 16, 16, 16, 16, 20, 1, 13, +189, 193, 19, N4, 20, 16, 16, 16, 16, 16, 16, 16, N1, 94, +232, 99, N2, 16, 16, 16, 16, 16, 16, 16, 20, 1, 13, +188, 192 +} +}; +#endif + +// Computed the input to output filters. +// There will be two phases, depending on whether +// the input pixel has an even or odd address. +// Although in this case they seem like they +// almost interleave, they are actually mirror +// images with offset, so it's easier to keep them +// separate, rather than trying to figure the offset out. +// The index is the output pixel around the closest one +// to the scaled input pixel - ie. floor(in * 1.5 + 0.5) +#define FWIDTH 6 +#define NWIDTH (2 * FWIDTH + 1) + +double filt_v[2][2][NWIDTH]; +double filt_vx[2][2][NWIDTH]; /* max */ +double filt_vn[2][2][NWIDTH]; /* min */ + +double *filt[2][2] = { { &filt_v[0][0][FWIDTH], &filt_v[0][1][FWIDTH] }, + { &filt_v[1][0][FWIDTH], &filt_v[1][1][FWIDTH] } }; + +double *filtx[2][2] = { { &filt_vx[0][0][FWIDTH], &filt_vx[0][1][FWIDTH] }, + { &filt_vx[1][0][FWIDTH], &filt_vx[1][1][FWIDTH] } }; + +double *filtn[2][2] = { { &filt_vn[0][0][FWIDTH], &filt_vn[0][1][FWIDTH] }, + { &filt_vn[1][0][FWIDTH], &filt_vn[1][1][FWIDTH] } }; + +//int fneg[2] = { -5, -4 }; /* Negative index range (inclusive) */ +//int fpos[2] = { 5, 3 }; /* Positive index range (inclusive) */ +int fneg[2][2] = { { -4, -4 }, /* Negative index range (inclusive) */ + { -4, -4 } }; +int fpos[2][2] = { { 4, 3 }, /* Positive index range (inclusive) */ + { 4, 3 } }; + +/* Weightings [horiz/vert][phase] */ +double filtw_v[2][2][NWIDTH] = { + /* -6, -5, -4, -3, -2, -1, 0, +1, +2, +3, +4, +5, +6 */ +// { { 1.0, 1.0, 1.0, 5.0, 3.0, 42.0, 80.0, 43.0, 3.0, 5.0, 1.0, 1.0, 1.0 }, +// { 1.0, 1.0, 3.0, 4.0, 19.0, 62.0, 62.0, 21.0, 4.0, 3.0, 1.0, 1.0, 1.0 } }, + { { 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0 }, + { 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0 } }, + /* -6, -5, -4, -3, -2, -1, 0, +1, +2, +3, +4, +5, +6 */ +// { { 1.0, 1.0, 1.0, 3.0, 17.0, 36.0, 100.0, 40.0, 15.0, 1.0, 3.0, 1.0, 1.0 }, +// { 1.0, 1.0, 1.0, 8.0, 2.0, 80.0, 81.0, 2.0, 8.0, 2.0, 1.0, 1.0, 1.0 } } + { { 1.0, 1.0, 1.0, 1.0, 1.0, 2.0, 4.0, 2.0, 1.0, 1.0, 1.0, 1.0, 1.0 }, + { 1.0, 1.0, 1.0, 1.0, 1.0, 3.0, 3.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0 } }, +}; +double *filtw[2][2] = { { &filtw_v[0][0][FWIDTH], &filtw_v[0][1][FWIDTH] }, + { &filtw_v[1][0][FWIDTH], &filtw_v[1][1][FWIDTH] } }; + +#define MX 2.0 +#define MN -0.5 + +// Compute the filter shapes +// vv = 0 for horizontal, 1 for vertical +static void compute(int vv) { + int ph, ii, i, jj, j; + double iv, ov; + int fcount[2]; + int niv = sizeof(in[vv])/sizeof(double); + int nov = sizeof(out[vv])/sizeof(double); + + // Clear the filters + for (ph = 0; ph < 2; ph++) { + for (j = -FWIDTH; j <= FWIDTH; j++) { + filt[vv][ph][j] = 0.0; + filtx[vv][ph][j] = MX; + filtn[vv][ph][j] = MN; + } + fcount[ph] = 0; + } + + // Discover an input value + for (ii = 0; ii < niv; ii++) { + double rgb[3], ycc[3]; + double prop, propx, propn; + + if (in[ii] == 0) + continue; + + iv = in[vv][ii]; + rgb[0] = rgb[1] = rgb[2] = iv; + ccast2YCbCr(NULL, ycc, rgb); + iv = ycc[0]; + + ph = ii & 1; + jj = (int)floor(ii * 1.5 + 0.5); + + for (j = -FWIDTH; j <= FWIDTH; j++) { + int k = jj + j; + if (k < 0 || k >= nov) + continue; + ov = out[vv][k]; + + prop = ((ov - 16.0)/219.0)/((iv - 16.0)/219.0); + propx = ((ov - 16.0)/219.0)/((iv - 0.5 - 16.0)/219.0); + propn = ((ov - 16.0)/219.0)/((iv + 0.5 - 16.0)/219.0); + + if (propx < propn) { + double tt = propn; + propn = propx; + propx = tt; + } + +//printf("~1 phase %d, off %d, iv %f ov %f, prop %f\n",ph,j,iv,ov,prop); + filt[vv][ph][j] += prop; + if (propx < filtx[vv][ph][j]) + filtx[vv][ph][j] = propx; + if (propn > filtn[vv][ph][j]) + filtn[vv][ph][j] = propn; + } + fcount[ph]++; + } + + // Compute average values + for (ph = 0; ph < 2; ph++) { + for (j = -FWIDTH; j <= FWIDTH; j++) + filt[vv][ph][j] /= (double)fcount[ph]; + } +} + +#define FCO2IX(bank, off) (bank ? fpos[vv][0] - fneg[vv][0] + 1 + off - fneg[vv][1] : off - fneg[vv][0]) + +// Compute the filter shapes using SVD +// vv = 0 for horizontal, 1 for vertical +static void compute2(int vv) { + int niv = sizeof(in[vv])/sizeof(double); /* Number of input values */ + int nov = sizeof(out[vv])/sizeof(double); /* Number of output values */ + int novextra = 0; + int nfc = fpos[vv][0] - fneg[vv][0] + 1 + + fpos[vv][1] - fneg[vv][1] + 1; /* Number of filter coeficients */ + double **A, *b; + int oe; /* Even or odd */ + int j, i; + +#ifdef SUM_CONSTRAINT + novextra = 3; +#endif + + nov += novextra; /* Extra constraint of sum */ + + /* We assume nov > nfc */ + A = dmatrixz(0, nov-1, 0, nfc-1); + b = dvectorz(0, nov-1); + + /* For each output value */ + for (j = 0; j < (nov-novextra); j++) { + double ww = 1.0; + +#ifdef DO_WEIGHTING + /* Figure out the weighting */ + for (oe = 0; oe < 2; oe++) { + int fix; /* Filter index */ + + /* For offset range of filter */ + for (fix = fneg[vv][oe]; fix <= fpos[vv][oe]; fix++) { + int ocx, icx, ph; + + ocx = j - fix; /* Output center of filter */ + if (ocx < 0 || ocx >= nov) + continue; /* Filter would never get applied */ + if (((2 * ocx) % 3) == 2) + continue; /* Would never get applied */ + icx = (int)floor(ocx / 1.5); /* Input center index for this output */ + if (icx < 0 || icx >= niv) + continue; /* Filter would never get applied */ + ph = icx & 1; /* Phase of filter */ + if (ph != oe) /* Not a filter that would appear at this ouput */ + continue; + if (in[vv][icx] >= 200.0) + ww = filtw[vv][ph][fix]; + } + } +#endif /* DO_WEIGHTING */ + + /* For even and odd filters */ + for (oe = 0; oe < 2; oe++) { + int fix; /* Filter index */ + + /* For offset range of filter */ + for (fix = fneg[vv][oe]; fix <= fpos[vv][oe]; fix++) { + double rgb[3], ycc[3]; + int ocx, icx, ph; + + ocx = j - fix; /* Output center of filter */ + if (ocx < 0 || ocx >= nov) + continue; /* Filter would never get applied */ + if (((2 * ocx) % 3) == 2) + continue; /* Would never get applied */ + icx = (int)floor(ocx / 1.5); /* Input center index for this output */ + if (icx < 0 || icx >= niv) + continue; /* Filter would never get applied */ + ph = icx & 1; /* Phase of filter */ + if (ph != oe) /* Not a filter that would appear at this ouput */ + continue; +//printf("j = %d/%d, k = %d/%d, ix = %d/%d\n",j,nov,oe * NWIDTH + FWIDTH + fix,nfc,ix,niv); + rgb[0] = rgb[1] = rgb[2] = in[vv][icx]; + ccast2YCbCr(NULL, ycc, rgb); + A[j][FCO2IX(oe, fix)] += ww * ycc[0]; +//printf("A[%d][%d] = %f\n",j,FCO2IX(oe, fix),A[j][FCO2IX(oe, fix)]); + } + } + b[j] = ww * out[vv][j]; +//printf("b[%d] = %f\n",j,b[j]); + } + +#ifdef SUM_CONSTRAINT + /* Add sum constraints */ + /* For 3 repeating output slots */ + for (j = nov-novextra; j < nov; j++) { + double ww = 10000.0; + int jj = j - (nov-novextra); + + b[j] = ww; + + /* For even and odd filters */ + for (oe = 0; oe < 2; oe++) { + int fix; /* Filter index */ + + /* For offset range of filter */ + for (fix = fneg[vv][oe]; fix <= fpos[vv][oe]; fix++) { + double rgb[3], ycc[3]; + int ocx, ocx2, icx, ph; + + ocx = j - fix; /* Output center of filter */ + ocx2 = 2 * ocx; + + while (ocx2 < 0) + ocx2 += 3; + while (ocx2 >= 3) + ocx2 -= 3; + + if (ocx2 == 2) + continue; /* Would never get applied */ + + while (ocx < 0) + ocx += 3; + while (ocx >= 3) + ocx -= 3; + + icx = (int)floor(ocx / 1.5); /* Input center index for this output */ + ph = icx & 1; /* Phase of filter */ + if (ph != oe) /* Not a filter that would appear at this ouput */ + continue; + A[j][FCO2IX(oe, fix)] = ww; +printf("A[%d][%d] = %f\n",j,FCO2IX(oe, fix),A[j][FCO2IX(oe, fix)]); + } + } + } +#endif /* SUM_CONSTRAINT */ + + /* Solve the equation A.x = b using SVD */ + /* (The w[] values are thresholded for best accuracy) */ + /* Return non-zero if no solution found */ + if (svdsolve(A, b, nov, nfc)) + error("svdsolve failed"); + + /* Print the filter shape */ + /* and copy to the filter */ + printf("SVD computed for %s:\n", vv ? "vertical" : "horizontal"); + for (oe = 0; oe < 2; oe++) { + int fix; /* Filter index */ + double sum = 0.0; + + printf("Phase %d\n",oe); +// for (fix = -FWIDTH; fix <= FWIDTH; fix++) { + for (fix = fneg[vv][oe]; fix <= fpos[vv][oe]; fix++) { + printf(" %d -> %f\n",fix, b[FCO2IX(oe, fix)]); + sum += b[FCO2IX(oe, fix)]; + filt[vv][oe][fix] = b[FCO2IX(oe, fix)]; + } + printf("sum = %f\n",sum); + } +} + +void check(int vv) { + double *chout; + int niv = sizeof(in[vv])/sizeof(double); /* Number of input values */ + int nov = sizeof(out[vv])/sizeof(double); /* Number of output values */ + + int range, i, ii, j; + double xc, x, iv, tw, w, y; + double cout, terr = 0.0; + +printf("~1 nov = %d\n",nov); + if ((chout = (double *)malloc(sizeof(double) * nov)) == NULL) + error("Malloc failed"); + + // Clear the output + for (i = 0; i < nov; i++) + chout[i] = 0.0; + + // For all the input value + for (ii = 0; ii < niv; ii++) { + int ph, jj; + double rgb[3], ycc[3]; + double prop; + + iv = in[vv][ii]; + rgb[0] = rgb[1] = rgb[2] = iv; + ccast2YCbCr(NULL, ycc, rgb); + iv = ycc[0]; + + ph = ii & 1; + jj = (int)floor(ii * 1.5 + 0.5); + + for (j = -FWIDTH; j <= FWIDTH; j++) { + int k = jj + j; + if (k < 0 || k >= nov) + continue; + +//if ((jj + j) == 4) printf("[%d] += w %f * iv %f\n",jj + j, filt[ph][j], iv); + chout[k] += filt[vv][ph][j] * iv; + } + } + + for (i = 0; i < nov; i++) { + double ov, ee; + ov = chout[i]; + ov = floor(ov + 0.5); +#ifdef NEVER + if (ov < 0.0) + ov = 0.0; + else if (ov > 255.0) + ov = 255.0; +#endif + ee = ov - out[vv][i]; + terr += ee * ee; + printf("out %d = %f should be %f err %f\n",i,chout[i],out[vv][i],ee); + } + + printf("Total err = %f RMS\n",sqrt(terr)); +} + +int +main(int argc, + char *argv[] +) { + int ph, vv, j; + + double err; + double cp[2]; /* Initial starting point */ + double s[2]; /* Size of initial search area */ + + printf("Hi there\n"); + +#ifdef NEVER + compute(1); + + // Print filter shape + printf("Directly computed:\n"); + for (ph = 0; ph < 2; ph++) { + printf("Phase %d\n",ph); + for (j = -FWIDTH; j <= FWIDTH; j++) + printf(" %d -> min %f, avg %f, max %f\n",j,filtn[1][ph][j],filt[1][ph][j],filtx[1][ph][j]); + } +#endif + + for (vv = 0; vv < 2; vv++) { + compute2(vv); + check(vv); + } + + /* Output code to stdout */ + for (ph = 0; ph < 2; ph++) { + fprintf(stderr,"/* Weightings [horiz/vert] */\n"); + fprintf(stderr,"double filt_v_%s[2][%s_WIDTH] = {\n",ph ? "od" : "ev", ph ? "OD" : "EV"); + + for (vv = 0; vv < 2; vv++) { + int fix; /* Filter index */ + + fprintf(stderr,"{ "); + for (fix = fneg[vv][ph]; fix <= fpos[vv][ph]; fix++) { + if (fix > fneg[vv][ph]) + fprintf(stderr,", "); + fprintf(stderr,"%f", filt[vv][ph][fix]); + } + fprintf(stderr," }%s\n",vv == 0 ? "," : ""); + } + fprintf(stderr,"};\n\n"); + } + + return 0; +} + diff --git a/cgats/cgats.c b/cgats/cgats.c index 84ff2c9..a39ec04 100644 --- a/cgats/cgats.c +++ b/cgats/cgats.c @@ -769,6 +769,10 @@ cgats_read(cgats *p, cgatsFile *fp) { } pp->del(pp); /* Clean up the parse file */ + + if (p->ntables == 0) + return -1; /* Failed to load any table */ + return 0; } diff --git a/doc/3dformat.html b/doc/3dformat.html new file mode 100644 index 0000000..e60a432 --- /dev/null +++ b/doc/3dformat.html @@ -0,0 +1,109 @@ + + + + 3D viewing file format + + + + +

3D Viewing Format
+

+ Gamut and other 3D output visualisations can be created in one of 3 + formats:
+
+ VRML
+     A legacy web 3D file format, using the .wrl + file extension.
+     Either a standalone viewer of a web browser + plugin is needed to view the file.
+
+ X3D
+     A current web 3D file format modeled after VRML, + using the .x3d file extension.
+     Either a standalone viewer of a web browser + plugin is needed to view the file.
+
+ X3DOM
+     An HTML file using a javascript viewer and an X3D + scene, using the .x3d.html file extension.
+     Any web browser supporting javascript and WebGL + can be used to display this.
+
+ By default ArgyllCMS tools will output VRML format, but the defaul + can be overridden by setting the environment variable
+ "ARGYLL_3D_DISP_FORMAT" to "VRML", "X3D" or "X3DOM"
+
+ Note that the X3DOM file has references to the x3dom.css and + x3dom.js support files in the same directory as the created + .x3d.html file, and the tools will create a copy of these files in + that directory if they don't exist. These two files must be copied + with the .x3d.html if it is moved somewhere else.
+
+ To check if your browser supports X3DOM, try this test page.
+
+ X3DOM navigation in Web browser:
+

"Examine" - default viewing mode, which can be
+ re-activate this mode by pressing the "e" key.

+ + + + + + + + + + + + + + + + + + + + + + + + +
FunctionMouse Button
RotateLeft / Left + Shift
PanMid / Left + Ctrl
ZoomRight / Wheel / Left + Alt
Set center of rotationDouble-click left
+
+
+ + + + + + + + + + + + + + + + + + + + +
FunctionKey
Reset viewr
Show alla
Uprightu
+
+
+    
+
+
+
+
+
+
+
+
+ + diff --git a/doc/ArgyllCMS_arts_tag.html b/doc/ArgyllCMS_arts_tag.html new file mode 100644 index 0000000..826aa30 --- /dev/null +++ b/doc/ArgyllCMS_arts_tag.html @@ -0,0 +1,165 @@ + + + + + + + Argyll 'arts' ICC tag + + +
+

ArgyllCMS's 'arts' (Absolute to media Relative Transform + Space matrix) ICC tag (V1.0)
+

+ ArgyllCMS uses a registered (private) ICC tag to solve a long + standing Display profile compatibility issue.
+
+ Other CMM and profile creation providers are most welcome to + implement this tag to improve ICC profile color behavior and + interoperability.
+

The problem

+ The ICC V2 format originally provided no clear mechanism for Display + profiles to use a modern chromatic adaptation transform in dealing + with the D65 white point of typical displays. V2 profile makers + ended up taking three different approaches :-
+
    +
  1. Use a Bradford chromatic transform for the media (display) + white to PCS D50 conversion. This was used in creating the + widely deployed HP & Microsoft sRGB profile, as well as the + AdobeRGB profile. This provides a good chromatic adaptation, but + Absolute Colorimetric will have errors if the profile is used + with a CMM that implements the the ICC specified "Wrong Von + Kries" chromatic adaptation to map relative colorimetric back to + absolute colorimetric rather than using the Bradford transform + it was created with.
    +
    2. +
  2. Use the ICC specified "Wrong Von Kries" chromatic transform + from D65 to D50. This leads to poor relative colorimetric + behavior (the most important case), but gives correct Absolute + Colorimetric behavior.
    +
    3. +
  3. Apply the Bradford transform to the measurement data and then + disable Absolute Intent for display profiles by setting the + mediaWhitePoint tag to D50. The latter approach was supplemented + later on with the introduction of the ChromaticAdapation + ('chad') tag, but this did not restore the Absolute Colorimetric + capability to Display profiles, since the 'chad' tag is not + formally part of the specified mechanism for implementing + Absolute Colorimetric. Unfortunately, this approach has been + adopted in the ICC V4 specifications
    4. +
+ The ICC standard "Wrong Von Kries" chromatic transform for media + white to/from PCS D50 has disadvantages in regard to color behavior + for Output (i.e. print) profiles as well as Display profiles though. + With most normal, white media this is not of great significance, + since the white point shift is small, but it grows in significance + as the color of the paper differs from white (i.e. tinted papers).
+
+ For all these reasons, and in the pursuit of the best possible color + quality, ArgyllCMS uses the more color accurate Bradford chromatic + transform for all profiles types instead of the the ICC standard + "Wrong Von Kries" transform. This improves compatibility with the + (extremely common use case) of HP & Microsoft sRGB, and AdobeRGB + profiles where the color behavior of Bradford vs. "Wrong Von Kries" + is more critical; provides good color behavior for creating Display + profiles while giving accurate Absolute Colorimetric Intent + behavior; slightly improves the quality of Output profiles, most + noticeable with tinted stock, while having minimum incompatibility + with Output profiles created for normal, white printed media by + other profiling programs because the white point shift is typically + small. But to enable perfect compatibility of ArgyllCMS Output (i.e. + print)  profiles with other CMM's, the default behavior can be + changed by using the ARGYLL_CREATE_WRONG_VON_KRIES_OUTPUT_CLASS_REL_WP + environment variable.
+
+ So the problem is that it is impossible to know for sure whether an + ArgyllCMS create profile, ICC V2 Display profile, or other ICC + profiles has used a Bradford or "Wrong Von Kries" chromatic + transform in computing Absolute to/from Relative white point + transform.
+

The solution

+ The ArgyllCMS SigAbsToRelTransSpace 'arts' tag holds a 3x3 matrix in + the first 9 elements* of a SigS15Fixed16ArrayType in the + usual ICC order (i.e. the same element order as the + ChromaticAdaptationTag 'chad' tag). This matrix holds the Sharpened + Cone space transform that the Media White point to/from PCS D50 + chromatic Von Kries transform is computed in, rather than the "Wrong + Von Kries" transform specified by ICC.1:2001-04 (ICCV2.4) Annex A, + pp 66, equations A.1, A.2 & A.3. So by default ArgyllCMS will + write an 'arts' tag with the Bradford matrix in it:
+
  sig      'arts'
+   type     'sf32'
+ S15Fixed16Array:
+   No. elements = 9
+     0:  0.89509583
+     1:  0.26640320
+     2:  -0.16140747
+     3:  -0.75019836
+     4:  1.71350098
+     5:  0.03669739
+     6:  0.03889465
+     7:  -0.06849670
+     8:  1.02960205
+
+ In contrast, ICC standard behavior is the equivalent of a unit + matrix.
+
+ [ Note that ArgyllCMS will write an 'arts' tag containing a Bradford + matrix even for Display profile written using the 'chad' tag where + the the MediaWhitePointTag is set to D50, representing the cone + space used in computing the 'chad' tag. (see ARGYLL_CREATE_DISPLAY_PROFILE_WITH_CHAD) + i.e. for Display profiles, the 'chad' tag is regarded as just an + alternate means of representing the true Media White Point. ]
+
+ On reading a profile, ArgyllCMS uses the following logic to set its + Media white to/from PCS D50 chromatic transform:
+
+     if 'arts' tag is present:
+         use it to compute + absolute <-> media relative white point transform.
+     else:
+         if ArgyllCMS created + profile (ICC header Profile Creator signature = 'argl')
+          or V2 Display + profile && Media W.P. != D50:
+             + use Bradford matrix to compute absolute <-> media relative + white point transform.
+         else:
+             + use unity matrix to compute absolute <-> media relative white + point transform.
+
+ The 'arts' tag need not be written if the profile contains no 'wtpt' + MediaWhitePointTag tag.
+
+ This provides a safe level of backwards compatibility, together with + the elimination of all ambiguity when the 'arts' tag is present, + allowing CMM and profile creators to use the preferred Bradford (or + other Sharpened Cone) space for Von Kries chromatic adaptation of + the media white point to/from PCS D50.
+

Conclusion

+ The 'arts' tag allows unambiguous use of the recommended Bradford + cone space transform in computing the Absolute Colorimetric (Media + Relative) to/from Relative Colorimetric (PCS D50) chromatic + transform in ICC profiles, while for the first time also providing + an unambiguously means of marking the use of the Bradford transform + in the very widely used standard sRGB and AdobeRGB colorspaces. If + widely adopted, the use of "Wrong Von Kries" chromatic transform in + ICC profiles could be safely abandoned.
+
+ * If the SigS15Fixed16ArrayType has more than 9 elements, then just + the first 9 should be interpreted as a 3x3 matrix, and any elements + beyond that should be ignored.
+
+
+
+
+
+ + diff --git a/doc/ArgyllDoc.html b/doc/ArgyllDoc.html index 98e730d..f7a0141 100644 --- a/doc/ArgyllDoc.html +++ b/doc/ArgyllDoc.html @@ -10,9 +10,9 @@ Argyll Documentation Top -

Argyll CMS documentation index (V1.6.3)
+

Argyll CMS documentation index (V1.7.0)

- Date:   26th January 2014
+ Date:   1st May 2015
Author: Graeme Gill

Introduction

ArgyllCMS is an ICC compatible color management system, available as @@ -29,21 +29,29 @@ wide selection of rendering intents. It also includes code for the fastest portable 8 bit raster color conversion engine available anywhere, as well as support for fast, fully accurate 16 bit - conversion. Device color gamuts can also be viewed and compared - using a VRML viewer. Comprehensive documentation is provided for - each major tool, and a general guide to using the tools for typical - color management tasks is also available. A mailing list provides - support for more advanced usage.
-

This is Version 1.6.3, a bug fix update to V1.6.2 released on 8th - November 2013. The first public release of icclib was in November - 1998, and of Argyll was in October 2000. Code development - commenced in 1995. See Changes - Summary for an overview of changes since the last release. - Changes between revisions is detailed in the log.txt file - that accompanies the source code.

+ conversion. Device color gamuts can also be viewed and compared with + a modern Web browser using X3DOM . Comprehensive documentation is + provided for each major tool, and a general guide to using the tools + for typical color management tasks is also available. A mailing list + provides support for more advanced usage.
+

This is Version 1.7.0, a feature and bug fix update to V1.6.3. + The first public release of icclib was in November 1998, and of + Argyll was in October 2000. Code development commenced in 1995. + See Changes Summary for an + overview of changes since the last release. Changes between + revisions is detailed in the log.txt file that accompanies + the source code.

The latest source code is available from here.

+

Please + note that instruments are being driven by ArgyllCMS drivers, + and that any problems or queries regarding instrument
+ operation should be + directed to the Argyll's author(s) or the Argyll mailing list, + and not to any other + party.

+

An Introduction to Color Management

A great introduction for non technical people is Steve Upton's of what color management is, and why we need it, together with a brief overview of the ICC profile format.
@@ -131,12 +164,6 @@ - - - Tele-Spectro-Radiometer
-
- X-Rite:
-     DTP20 "Pulse"  -                            @@ -162,6 +189,12 @@ + + - Tele-Spectro-Radiometer
+
+ Klein:
+
+     K10-A   @@ -183,6 +216,16 @@ + +             +             +             +     - Display Colorimeter. Reported also to work with + the K-1, K-8 and  K-10.
+
+ X-Rite:
+     DTP20 "Pulse"  +                            @@ -197,10 +240,6 @@ - - - "swipe" type reflective spectrometer, that can be used untethered.
-     DTP22 Digital - Swatchbook            @@ -261,9 +300,6 @@ - - - spot type reflective spectrometer.
-     DTP41                                         @@ -275,6 +311,10 @@ + + - "swipe" type reflective spectrometer, that can be used untethered.
+     DTP22 Digital + Swatchbook            @@ -324,11 +364,6 @@ - - - spot and strip reading reflective spectrometer.
-     DTP41T -                  -                      @@ -365,6 +400,10 @@ + + - spot type reflective spectrometer.
+     DTP41                                         + @@ -389,9 +428,6 @@ - - - spot and strip reading reflective/transmissive spectrometer.
-     DTP51                                         @@ -453,8 +489,10 @@ - - strip reading reflective colorimeter.
-     DTP92                                         + - spot and strip reading reflective spectrometer.
+     DTP41T +                  +                      @@ -515,70 +553,6 @@ - - - CRT display colorimeter.
-     DTP94 "Optix XR" or "Optix XR2" or "Optix Pro"- display - colorimeter.
-     ColorMunki Design - or Photo           - - spot and "swipe" reflective/emissive spectrometer (UV cut only).
-     ColorMunki Create - or Smile   -          - display - colorimeter. (Similar to an Eye-One Display 2)
-     Lenovo W -                   -                   - - built in laptop Huey display colorimeter.
-     Eye-One Display - 3                 -         - Xrite i1 DisplayPro and ColorMunki - Display
-             -             -             -             -           [ The OEM - i1Display Pro, NEC SpectraSensor Pro,
-                   -                   -                   -        Quato Silver Haze 3 OEM and HP - DreamColor  i1d3 are also reported to work.]
-     Eye-One Pro2 -                   -              - spot and - "swipe" reflective/emissive spectrometer.
-
- Gretag-Macbeth (now X-Rite):
-     Spectrolino   -                   -               - spot - reflective/emissive spectrometer.
-     SpectroScan   -                   -             - spot - reflective/emissive, XY table reflective spectrometer  .
-     SpectroScanT   -                   -           - spot - reflective/emissive/transmissive, XY table reflective spectrometer.
-     Eye-One Pro "EFI - ES-1000"           - spot and "swipe" - reflective/emissive spectrometer.
-     Eye-One Monitor -                   -         - spot and "swipe" emissive - spectrometer.
-     Eye-One Display 1 - or 2  or LT        - - display colorimeter.
-     HP DreamColor or - APS  -                 @@ -604,6 +578,10 @@ + + - spot and strip reading reflective/transmissive spectrometer.
+     DTP51                                         + @@ -639,10 +617,6 @@ - - - display colorimeter. (Treated as a Eye-One Display 2)
-     CalMAN X2 -                                  @@ -692,6 +666,23 @@ + + - strip reading reflective colorimeter.
+     DTP92                                         + + + + + + + + + + + + + + @@ -703,19 +694,6 @@ - - - display colorimeter. (Treated as a Eye-One Display 2)
-     Huey   -                   -                 -        - display colorimeter.
-
- Sequel imaging (Now X-Rite):
-      MonacoOPTIX -                   -           - display - colorimeter (Treated as an Eye-One Display 1)
-                                                            @@ -777,10 +755,69 @@ - [The Sequel Chroma 4 may also work.]
+ - CRT display colorimeter.
+     DTP94 "Optix XR" or "Optix XR2" or "Optix Pro"- display + colorimeter.
+     ColorMunki Design + or Photo           - + spot and "swipe" reflective/emissive spectrometer (UV cut only).
+     ColorMunki Create + or Smile   +          - display + colorimeter. (Similar to an Eye-One Display 2)
+     Lenovo W +                   +                   - + built in laptop Huey display colorimeter.
+     Eye-One Display + 3                 +         - Xrite i1 DisplayPro and ColorMunki + Display
+             +             +             +             +           [ The OEM + i1Display Pro, NEC SpectraSensor Pro,
+                   +                   +                   +        Quato Silver Haze 3 OEM and HP + DreamColor  i1d3 are also reported to work.]
+     Eye-One Pro2 +                   +              - spot and + "swipe" reflective/emissive spectrometer.

- Lacie Blue - Eye:                                  + Gretag-Macbeth (now X-Rite):
+     Spectrolino   +                   +               - spot + reflective/emissive spectrometer.
+     SpectroScan   +                   +             - spot + reflective/emissive, XY table reflective spectrometer  .
+     SpectroScanT   +                   +           - spot + reflective/emissive/transmissive, XY table reflective spectrometer.
+     Eye-One Pro "EFI + ES-1000"           - spot and "swipe" + reflective/emissive spectrometer.
+     Eye-One Monitor +                   +         - spot and "swipe" emissive + spectrometer.
+     Eye-One Display 1 + or 2  or LT        - + display colorimeter.
+     HP DreamColor or + APS  +                 @@ -841,16 +878,6 @@ - - - see Eye-One Display
-
- DataColor ColorVision:
-      Spyder 2 -                    -            -        - display colorimeter (Note - that the user must supply firmware)
-                                                           @@ -876,6 +903,10 @@ + + - display colorimeter. (Treated as a Eye-One Display 2)
+     CalMAN X2 +                                  @@ -911,27 +942,6 @@ - - [The Spyder 1 has also been reported as working, but this has not - been confirmed.]
-      Spyder 3 -                    -            -        - display colorimeter.
-      Spyder 4 -                    -            -        - display colorimeter (Note - that the user must supply calibration - data)
-
- Other:
-     Colorimètre HCFR                          - - - - @@ -982,15 +992,25 @@ + + - display colorimeter. (Treated as a Eye-One Display 2)
+     Huey   +                   +                 +        - display colorimeter.
+
+ Sequel imaging (Now X-Rite):
+      MonacoOPTIX +                   +           - display + colorimeter (Treated as an Eye-One Display 1)
+                                                            - - - display colorimeter
-     ColorHug                                       @@ -1036,104 +1056,6 @@ - - - display colorimeter
-
- See Operation of particular - instruments for more instrument specific detail.
-
- Other instruments can be supported indirectly, since patch result - files created by other packages can be imported into Argyll.
-
- Please note the installation instructions for - each platform - they contain important information for getting your - instruments working.
-

If you've decided to buy a color instrument because Argyll - supports it, please let the dealer and manufacturer know that "You bought it because Argyll CMS - supports it" - thanks.
-

-

Please note that instruments are - being driven by ArgyllCMS drivers, and that any problems or - queries regarding instrument
- operation should be - directed to the Argyll's author(s) or the Argyll mailing list, - and not to any other - party.

-

There is a list of contributed ccmx (Colorimeter Correction - Matrix) files for some display/colorimeter combinations.

-

Copyright and Licensing:
-

-

Most of the source code and provided executable files are - copyrighted works, licensed under the Affero GNU Version 3 license, and therefore they - (or works derived from them) can't be copied, sold or made - available to users interacting with them remotely through a - computer network, without providing the source code. Nothing other - than your agreement and compliance with the Affero GNU License - grants you permission to use, modify or distribute Argyll source - code, executables or its derivative works. You could be sued for - copyright infringement if you use or distribute Argyll without a - valid license. The Affero GNU - license prohibits - extending these tools - (i.e. by combining them with other programs or scripts that make - use of, depend on, or work with the Argyll code) and distributing - them, unless the all the elements of the extensions are also made - available under a GPL compatible license. It is permissible to - provide Argyll tools with other non GPL components if the elements - of the package are not related, such that the packaging is mere - aggregation. For all the gory details, please read the - accompanying license.

- Note that unlike many commercial ICC profiling tools, the profiles - created using Argyll, are not subject to any claims or restrictions - of Argyll's author(s), but are assumed to be the copyright property - of the person who gathers the characterization data, and causes the - profiles to be created. -

The Argyll CMS is Copyright 1995 - 2013 Graeme W. Gill, and is - made available under the terms of the Affero GNU General Public - License Version 3, as detailed in the License.txt - file. Documentation is licensed under the terms of the GNU Free - Documentation License, Version 1.3. The author asserts his moral - rights over this material in relationship to the attribution and - integrity of these works. In particular, if these works are - modified in a way that materially changes their functionality, - then the modified works should be renamed in a way that clearly - distinguishes them from "Argyll" or "ArgyllCMS" so that the - effects of such changes do not reflect on the original works - integrity or the original authors reputation. A subset of files - (those that are related to the color instrument drivers, and are - collected together into the instlib.zip archive by the - spectro/instlib.ksh script + xicc/ccmx.h and xicc/ccmx.c) are - licensed under the General Public License Version 2 or later, as - detailed in the License2.txt file.
-

-

Portions of the ColorHug instrument library - (spectro/colorhug.[ch]) are Copyright 2011, Richard Hughes, and is - licensed under the General Public License Version 2 or later, as - detailed in the License2.txt file.

-

The tool spectro/spec2cie.c is Copyright 2005 Gerhard Fuernkranz, - and is made available under the terms of the GNU General Public - License Version 2 or later, and is licensed here under the Version - 3 license, as detailed in the License3.txt - file.
-

-

The Win32 USB library libusb-win32 kernel drivers are included in - this distribution in the usb/driver and usb/bin directories, and - are copyright Stephan Meyer and Travis Robinson, and are licensed - under the GNU Version 2 or later (the drivers, services, - installer). See  usb/driver/License.txt, - libusbw/COPYING_LGPL.txt and libusbw/COPYING_GPL.txt for details. - Additional terms noted on the website - are "This license combination explicitly allows the use of this - library in commercial, non-Open-Source applications."
-

-

The icc library in icc/, - the CGATS library in cgats/, @@ -1168,6 +1090,11 @@ + + [The Sequel Chroma 4 may also work.]
+
+ Lacie Blue + Eye:                                  @@ -1194,8 +1121,6 @@ - - the jcnf library in jcnf/, @@ -1256,79 +1181,15 @@ - the files spectro/xdg_bds.*, - spectro/aglob.* and the - ucmm library in ucmm/ are - Copyright 1995 - 2011 Graeme W. Gill, and available according to - the "MIT" license granted in the icc/License.txt and - cgats/License.txt files, and the licenses at the top of - ucmm/ucmm.c and jcnf/jcnf.c.
-

-

The yajl library in jcnf/yajl - is Copyright 2007-2009, Lloyd Hilaiel and is licensed according to - the Berkeley-style License granted in the jcnf/yajl/COPYING files. - The yajl library has been repackaged and modified slightly for - convenience.
-

-

The TIFF library included in this distribution for convenience, - has its own copyright and license detailed in tiff/COPYRIGHT (an - "MIT"/"BSD" like license).
-

-

The Independent JPEG Group's JPEG library included in this - distribution for convenience, has its own copyright and license - detailed in jpg/README (an "MIT"/"BSD" like license). Executables - that include JPEG format support are based in part on the work of - the Independent JPEG Group.

-

xicc/iccjpeg.h and xicc/iccjpeg.c are from lcms and they are Copyright - (c) 1998-2010 Marti Maria Saguer and is licensed under an - "MIT"/"BSD" like license. See the top of the iccjpeg.c file for - the detailed copyright and licensing conditions.
-

-

The mongoose web server software is Copyright (c) 2004-2011 - Sergey Lyubka, and is licensed under an "MIT" license.

-

What sort of project is this ? (re: - contributions)
-

- This is essentially my private project, that I've made available - under GNU licensing conditions. Because I license my code under - other licenses as well, there is a limit to what I will accept in - the way of code contributions back into this project. For me to - accept contributions into the distribution, it either has to a - non-core (side) project, or has to be offered to me with copyright - conditions that are compatible with my other uses (i.e.. a "BSD" - like license, or assigning or licensing the copyright to me), or has - to be so trivial (say a one line bug fix), that it can't be the - subject of copyright.
-
- Of course there is nothing to stop someone setting up a real free - software, community project based on the GNU licensed code made - available here, that would be able to take GNU licensed - contributions from everyone and would essentially be a "fork" of - this code base.
-
-

Compiling

- How to build the software from the - source if you want to.
- Note that you don't need to - do this if you are using one of the binary installations.
-

Installing

- Important notes on installing the binary - software on various platforms.
+ - see Eye-One Display

-

Graphic - User Interfaces
-

- ArgyllCMS does not directly support a graphic user interface, but - several people have written GUI - based front ends for it. A popular front -end -that -supports -display -calibration - + DataColor ColorVision:
+      Spyder 2 +                    +            +        - display colorimeter (Note + that the user must supply firmware)
+                                                           @@ -1388,19 +1249,6 @@ calibration - - and profiling is dispcalGUI - by Florian Höch. Others can be found with a suitable search.
-

Main - Tools and the command line
-

- These are all command line ("DOS" shell) tools, and each tool - require appropriate options to be set, followed by filename - arguments. Sometimes the filenames will have to include the usual - extensions, sometimes they are implicit. To get a brief listing of - the possible arguments and usage - of any of the tools, run it with just an "-?" argument, i.e. targen @@ -1427,6 +1275,29 @@ href="http://www.google.com/search?hl=en&source=hp&q=argyllcms+GUI&a + + [The Spyder 1 has also been reported as working, but this has not + been confirmed.]
+      Spyder 3 +                    +            +        - display colorimeter.
+      Spyder 4 +                    +            +        - display colorimeter (Note + that the user must supply calibration + data)
+      Spyder 5 +                    +            +        - display colorimeter (Note + that the user must supply calibration + data)
+
+ Other:
+     Colorimètre HCFR                          @@ -1459,24 +1330,6 @@ href="http://www.google.com/search?hl=en&source=hp&q=argyllcms+GUI&a - - -? (or some other unrecognized flag, if the "?" character is - treated specially in your shell, i.e. try "--" on OS X zsh).
-
- Note that in general the arguments consist of possible flags or - options followed by file name arguments. All arguments need to be - separated by whitespace.  (If you need to specify a string with - embedded white space, double quote the string). A flag consists of a - dash attached to a single letter, the letter identifying the flag, - and is usually case sensitive. An option is a flag that has an - associated parameter or parameters. The parameter can be separated - from the flag by white space, or may come directly after the flag. - So if a tool has a usage that looks like this:
-
-   tool -?
-   usage: tool [options] infile outfile
-    - -v                   @@ -1530,6 +1383,9 @@ href="http://www.google.com/search?hl=en&source=hp&q=argyllcms+GUI&a + + - display colorimeter
+     ColorHug                                       @@ -1537,10 +1393,6 @@ href="http://www.google.com/search?hl=en&source=hp&q=argyllcms+GUI&a - - Verbose mode
-    -d - n                @@ -1601,11 +1453,51 @@ href="http://www.google.com/search?hl=en&source=hp&q=argyllcms+GUI&a - - Choose a depth 0-4
-    -r -                   + + + + - display colorimeter
+
+ See Operation of particular + instruments for more instrument specific detail.
+
+ Other instruments can be supported indirectly, since patch result + files created by other packages can be imported into Argyll.
+
+ Please note the installation instructions + for each platform - they contain important information for getting + your instruments working.
+

If you've decided to buy a color instrument because Argyll + supports it, please let the dealer and manufacturer know that "You bought it because Argyll CMS + supports it" - thanks.
+

+

Please note that instruments are + being driven by ArgyllCMS drivers, and that any problems or + queries regarding instrument
+ operation should be + directed to the Argyll's author(s) or the Argyll mailing list, + and not to any other + party.

+

There is a list of contributed ccmx (Colorimeter Correction + Matrix) files for some display/colorimeter combinations.

+

Copyright and Licensing:
+

+

Most of the source code and provided executable files are + copyrighted works, licensed under the Affero GNU Version 3 license, and therefore they + (or works derived from them) can't be copied, sold or made + available to users interacting with them remotely through a + computer network, without providing the source code. Nothing other + than your agreement and compliance with the Affero GNU License + grants you permission to use, modify or distribute ArgyllCMS + source code, executables or its derivative works. You could be + sued for copyright infringement if you use or distribute ArgyllCMS + without a valid license. The Affero @@ -1618,6 +1510,65 @@ href="http://www.google.com/search?hl=en&source=hp&q=argyllcms+GUI&a + + GNU license prohibits + extending these tools + (i.e. by combining them with other programs or scripts that make + use of, depend on, or work with the ArgyllCMS code) and + distributing them, unless all the elements of the extensions are + also made available under a GPL compatible license. It is + permissible to provide ArgyllCMS tools with other non GPL + components if the elements of the package are not related, such + that the packaging is mere aggregation. For all the gory details, + please read the accompanying license.

+ Note that unlike many commercial ICC profiling tools, the profiles + created using ArgyllCMS, are not subject to any claims or + restrictions of ArgyllCMS's author(s), but are assumed to be the + copyright property of the person who gathers the characterization + data, and causes the profiles to be created. +

The ArgyllCMS is Copyright 1995 - 2015 Graeme W. Gill, and is + made available under the terms of the Affero GNU General Public + License Version 3, as detailed in the License.txt + file. Documentation is licensed under the terms of the GNU Free + Documentation License, Version 1.3. The author asserts his moral + rights over this material in relationship to the attribution and + integrity of these works. In particular, if these works are + modified in a way that materially changes their functionality, + then the modified works should be renamed in a way that clearly + distinguishes them from "Argyll" or "ArgyllCMS" so that the + effects of such changes do not reflect on the original works + integrity or the original authors reputation. A subset of files + (those that are related to the color instrument drivers, and are + collected together into the instlib.zip archive by the + spectro/instlib.ksh script + xicc/ccmx.h and xicc/ccmx.c) are + licensed under the General Public License Version 2 or later, as + detailed in the License2.txt file.
+

+

Portions of the ColorHug instrument library + (spectro/colorhug.[ch]) are Copyright 2011, Richard Hughes, and is + licensed under the General Public License Version 2 or later, as + detailed in the License2.txt file.

+

The tool spectro/spec2cie.c is Copyright 2005 Gerhard Fuernkranz, + and is made available under the terms of the GNU General Public + License Version 2 or later, and is licensed here under the Version + 3 license, as detailed in the License3.txt + file.
+

+

The Win32 USB library libusb-win32 kernel drivers are included in + this distribution in the usb/driver and usb/bin directories, and + are copyright Stephan Meyer and Travis Robinson, and are licensed + under the GNU Version 2 or later (the drivers, services, + installer). See  usb/driver/License.txt, + libusbw/COPYING_LGPL.txt and libusbw/COPYING_GPL.txt for details. + Additional terms noted on the website + are "This license combination explicitly allows the use of this + library in commercial, non-Open-Source applications."
+

+

The icc library in icc/, + the CGATS library in cgats/, + + @@ -1665,13 +1616,6 @@ href="http://www.google.com/search?hl=en&source=hp&q=argyllcms+GUI&a - - Use a random depth
-    -f - [nn]            - Use full range. nn optional range 0 - 100.
-    -M -                  @@ -1708,6 +1652,8 @@ href="http://www.google.com/search?hl=en&source=hp&q=argyllcms+GUI&a + + the jcnf library in jcnf/, @@ -1732,10 +1678,6 @@ href="http://www.google.com/search?hl=en&source=hp&q=argyllcms+GUI&a - - Manual
-    infile -                @@ -1797,157 +1739,3235 @@ href="http://www.google.com/search?hl=en&source=hp&q=argyllcms+GUI&a - Input file
-    outfile -             - Output file
-
- then there are  5 flags/options, and two filename arguments. - Notice that square braces [] denote optional items. The first - flag/option is a flag. The second is an option that has a numerical - argument in the range 0 to 4. The third is a flag. the fourth is an - option with an optional argument. The fourth is a flag.  The - flags and options can generally be in any order, but must be before - the file name arguments. (For a few special tools you actually - specify a sequence of flags and files where the flags apply just to - the following file.) So example invocations may look like:
-
-   tool -v testin testout
-   tool -d3 -M testin1 testout2
-   tool -f infile outfile
-   tool -f 45 infile outfile
-   tool -d 3 -f67 infile outfile
-

In order to make use of the tools, it is necessary to keep track - of where various files are, and what they are called. There are - many possible ways of doing this. One way is to put each source - profile and all its associated files (test charts, spectrometer - values etc.) in one set of directories for each source profile - type. Similarly the device profiles could be stored in a hierarchy - of directories ordered by device type, media, resolution, device - mode etc. Naturally you will want to set your $PATH so that you - can run the tools from whichever directory you are in, as well as - specify any necessary directory paths for file arguments so that - the tools are able to open them.
+ the files spectro/xdg_bds.*, + spectro/aglob.* and the + ucmm library in ucmm/ are + Copyright 1995 - 2015 Graeme W. Gill, and available according to + the "MIT" license granted in the icc/License.txt and + cgats/License.txt files, and the licenses at the top of + ucmm/ucmm.c and jcnf/jcnf.c.

-

Note that there are two ways the Argyll tools deal with filename - extensions. In one you supply the extension (ie. you supply the - whole file name), so the extension is up to you. In the other - (used where one name is used for input and output files, or where - there are multiple output files), the program adds the extension. - In the documentation this should be indicated by calling it a - "base name".
+

The yajl library in jcnf/yajl + is Copyright (c) 2007-2014, Lloyd Hilaiel <me@lloyd.io> and + is used under an ISC License granted in the yajl/COPYING files. + The yajl library has been repackaged and modified slightly to adds + some features and for packaging and build convenience.

-

For more information on using a command - line environments, consult an appropriate tutorial:

-

MS Windows :
-    <http://www.bleepingcomputer.com/tutorials/tutorial76.html>
-    <http://www.pcstats.com/articleview.cfm?articleid=1723&page=1>
-    <http://www.voidspace.org.uk/python/articles/command_line.shtml>
-
-     To find more: <http://www.google.com/search?hl=en&q=windows+command+prompt+tutorial>
-
- OS X:
-     <http://www.osxfaq.com/Tutorials/LearningCenter/>
-     <http://www.atomiclearning.com/macosxterminalx.shtml>
-     <http://www.oreillynet.com/pub/a/mac/2001/12/14/terminal_one.html>
-
-     To find more: <http://www.google.com/search?hl=en&q=OS+X+shell+tutorial>
-
- Linux:
-     <http://www.linuxcommand.org/index.php>
-     <http://www.tuxfiles.org/linuxhelp/shell.html>
-     <http://www.ee.surrey.ac.uk/Teaching/Unix/>
-
-     To find more: <http://www.google.com/search?q=linux+command+line+shell+tutorial>

-


- Note that since OS X is - based on UNIX, there is much in common between the OS X and Linux - command line environments, and many of the UNIX tutorials may be - useful:
+

The TIFF library included in this distribution for convenience, + has its own copyright and license detailed in tiff/COPYRIGHT (an + "MIT"/"BSD" like license).

-

    <http://www.rain.org/~mkummel/unix.html>
-
+

The Independent JPEG Group's JPEG library included in this + distribution for convenience, has its own copyright and license + detailed in jpg/README (an "MIT"/"BSD" like license). Executables + that include JPEG format support are based in part on the work of + the Independent JPEG Group.

+

xicc/iccjpeg.h and xicc/iccjpeg.c are from lcms and they are Copyright + (c) 1998-2010 Marti Maria Saguer and is licensed under an + "MIT"/"BSD" like license. See the top of the iccjpeg.c file for + the detailed copyright and licensing conditions.

-

Tutorial: Typical usage scenarios - and examples

- A guided tour of the major tools, - applied to typical CMS jobs, such as calibrating displays, creating - device profiles, calibrating printers, linking profiles, and - converting color spaces of raster files.
-
- Although it is is a couple of years old now, this tutorial - may also be of interest.
-  
-

Topical - Discussions

- Discussions about particular topics:
-
- About Fluorescent Whitening Agent compensation
-
- Operation of particular instruments
-
- About ICC profiles and Gamut Mapping
-
- About display monitor settings and - targets
+

The mongoose web server software is Copyright (c) 2004-2011 + Sergey Lyubka, and is licensed under an "MIT" license.
+

+

The axTLS library is Copyright (c) 2008, Cameron Rich, and the + license is detailed in ccast/axTLS/LICENSE file (an "MIT"/"BSD" + like license).
+ It is not used for any security sensitive purpose, but is used + purely to communicate with the ChromeCast.
+

+

The X3DOM x3dom.css and + x3dom.js files are Copyright (C) 2009 X3DOM and licensed dual + "MIT" and "GPL" license. See plot/X3DOM_LICENSE.txt.
+

+

What sort of project is this ? (re: + contributions)
+

+ This is essentially my private project, that I've made available + under GNU licensing conditions. Because I license my code under + other licenses as well, there is a limit to what I will accept in + the way of code contributions back into this project. For me to + accept contributions into the distribution, it either has to a + non-core (side) project, or has to be offered to me with copyright + conditions that are compatible with my other uses (i.e.. a "BSD" + like license, or assigning or licensing the copyright to me), or has + to be so trivial (say a one line bug fix), that it can't be the + subject of copyright.

- About display "Gamma"
+ Of course there is nothing to stop someone setting up a real free + software, community project based on the GNU licensed code made + available here, that would be able to take GNU licensed + contributions from everyone and would essentially be a "fork" of + this code base.

- What's the difference between Calibration - and Characterization ?
+

Compiling

+ How to build the software from the + source if you want to.
+ Note that you don't need to + do this if you are using one of the binary installations.
+

Installing

+ Important notes on installing the binary + software on various platforms.

- Why doesn't my Colorimeter work - well on my Wide Gamut display ?
-
- My blacks get crushed on my - display - why ? How do I fix it ?
-
- How can I have confidence in the i1pro - Driver ?
-
- Does the i1pro High Resolution mode - improve accuracy ?
-
- Evaluating input targets
-
-

Flow - diagram of Major Tools:

+

Graphic + User Interfaces
+

+ ArgyllCMS does not directly support a graphic user interface, but + several people have written GUI + based front ends for it. A popular front +end +that +supports +display +calibration + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + and profiling is dispcalGUI + by Florian Höch. Others can be found with a suitable search.
+

Main + Tools and the command line
+

+ These are all command line ("DOS" shell) tools, and each tool + require appropriate options to be set, followed by filename + arguments. Sometimes the filenames will have to include the usual + extensions, sometimes they are implicit. To get a brief listing of + the possible arguments and usage + of any of the tools, run it with just an "-?" argument, i.e. targen + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + -? (or some other unrecognized flag, if the "?" character is + treated specially in your shell, i.e. try "--" on OS X zsh).

-           Thumbnail of Flow Diagram
+ Note that in general the arguments consist of possible flags or + options followed by file name arguments. All arguments need to be + separated by whitespace.  (If you need to specify a string with + embedded white space, double quote the string). A flag consists of a + dash attached to a single letter, the letter identifying the flag, + and is usually case sensitive. An option is a flag that has an + associated parameter or parameters. The parameter can be separated + from the flag by white space, or may come directly after the flag. + So if a tool has a usage that looks like this:

-

Main Tools by - category:

-

Calibrating devices
-

- dispcal -       Adjust, - calibrate and profile a display.
- printcal      Create a - printer calibration .cal file from a .ti3 data file.
-

Creating test targets for profiling or print calibration
-

- targen        +   tool -?
+   usage: tool [options] infile outfile
+    + -v                   + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + Verbose mode
+    -d + n                + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + Choose a depth 0-4
+    -r +                   + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + Use a random depth
+    -f + [nn]            + Use full range. nn optional range 0 - 100.
+    -M +                  + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + Manual
+    infile +                + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + Input file
+    outfile +             + Output file
+
+ then there are  5 flags/options, and two filename arguments. + Notice that square braces [] denote optional items. The first + flag/option is a flag. The second is an option that has a numerical + argument in the range 0 to 4. The third is a flag. the fourth is an + option with an optional argument. The fourth is a flag.  The + flags and options can generally be in any order, but must be before + the file name arguments. (For a few special tools you actually + specify a sequence of flags and files where the flags apply just to + the following file.) So example invocations may look like:
+
+   tool -v testin testout
+   tool -d3 -M testin1 testout2
+   tool -f infile outfile
+   tool -f 45 infile outfile
+   tool -d 3 -f67 infile outfile
+

In order to make use of the tools, it is necessary to keep track + of where various files are, and what they are called. There are + many possible ways of doing this. One way is to put each source + profile and all its associated files (test charts, spectrometer + values etc.) in one set of directories for each source profile + type. Similarly the device profiles could be stored in a hierarchy + of directories ordered by device type, media, resolution, device + mode etc. Naturally you will want to set your $PATH so that you + can run the tools from whichever directory you are in, as well as + specify any necessary directory paths for file arguments so that + the tools are able to open them.
+

+

Note that there are two ways the Argyll tools deal with filename + extensions. In one you supply the extension (ie. you supply the + whole file name), so the extension is up to you. In the other + (used where one name is used for input and output files, or where + there are multiple output files), the program adds the extension. + In the documentation this should be indicated by calling it a + "base name".
+

+

For more information on using a command + line environments, consult an appropriate tutorial:

+

MS Windows :
+    <http://www.bleepingcomputer.com/tutorials/tutorial76.html>
+    <http://www.pcstats.com/articleview.cfm?articleid=1723&page=1>
+    <http://www.voidspace.org.uk/python/articles/command_line.shtml>
+
+     To find more: <http://www.google.com/search?hl=en&q=windows+command+prompt+tutorial>
+
+ OS X:
+     <http://www.osxfaq.com/Tutorials/LearningCenter/>
+     <http://www.atomiclearning.com/macosxterminalx.shtml>
+     <http://www.oreillynet.com/pub/a/mac/2001/12/14/terminal_one.html>
+
+     To find more: <http://www.google.com/search?hl=en&q=OS+X+shell+tutorial>
+
+ Linux:
+     <http://www.linuxcommand.org/index.php>
+     <http://www.tuxfiles.org/linuxhelp/shell.html>
+     <http://www.ee.surrey.ac.uk/Teaching/Unix/>
+
+     To find more: <http://www.google.com/search?q=linux+command+line+shell+tutorial>

+


+ Note that since OS X is + based on UNIX, there is much in common between the OS X and Linux + command line environments, and many of the UNIX tutorials may be + useful:
+

+

    <http://www.rain.org/~mkummel/unix.html>
+
+

+

Tutorial: Typical usage scenarios + and examples

+ A guided tour of the major tools, + applied to typical CMS jobs, such as calibrating displays, creating + device profiles, calibrating printers, linking profiles, and + converting color spaces of raster files.
+
+ Although it is is a couple of years old now, this tutorial + may also be of interest.
+  
+

Topical + Discussions

+ Discussions about particular topics:
+
+ About Fluorescent Whitening Agent compensation
+
+ Operation of particular instruments
+
+ About ICC profiles and Gamut Mapping
+
+ About display monitor settings and + targets
+
+ About display "Gamma"
+
+ What's the difference between Calibration + and Characterization ?
+
+ Why doesn't my Colorimeter work + well on my Wide Gamut display ?
+
+ My blacks get crushed on my + display - why ? How do I fix it ?
+
+ How can I have confidence in the i1pro + Driver ?
+
+ Does the i1pro High Resolution mode + improve accuracy ?
+
+ Evaluating input targets
+
+ ArgyllCMS's Absolute to media + Relative Transform Space matrix ('arts') ICC tag
+
+

Flow + diagram of Major Tools:

+
+           Thumbnail of Flow Diagram
+
+

Main Tools by + category:

+

Calibrating devices
+

+ dispcal +       Adjust, + calibrate and profile a display.
+ printcal      Create a + printer calibration .cal file from a .ti3 data file.
+

Creating test targets for profiling or print calibration
+

+ targen        + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + Generate a profiling test target values .ti1 file.
+ filmtarg      Create + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + film recorder TIFF files from Argyll .ti1 file.
+ printtarg     Create + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + a PS, EPS or TIFF file containing test patch values, ready for + printing. +

Obtaining test results for profiling or print calibration
+

+ chartread     Read + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + a test chart using an instrument to create a .ti3 data file.
+ dispread      Test + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + and read colorimetric values from a display
+ filmread      Read + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + film colorimetric values using a SpectroScanT (Deprecated ?)
+ scanin        + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + Convert a TIFF  image of a test chart into .ti3 + device values.
+ illumread     Use an + instrument to measure an illuminant spectrum, and estimate its UV + content.
+ fakeread      Fake + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + the reading of a device using an ICC or MPP profile.
+ synthread     Fake the + reading of a device using a synthetic device model.
+ cb2ti3        + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + Convert Colorblind format CMY/RGB test chart into + Argyll .ti3 CGATS format.
+ kodak2ti3     Convert + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + Kodak Colorflow format CMYK test chart into Argyll .ti3 CGATS + format.
+ txt2ti3       + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + Convert Gretag/Logo/X-Rite/Barbieri or other format + RGB or CMYK test chart results into Argyll .ti3 CGATS format.
+ ls2ti3        Convert + + + + + + + + + + + + + + + + + + + + + + + + LightSpace format RGB .bcs test chart results into Argyll + .ti3 CGATS format.
+ fakeCMY       + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + Create a fake Argyll .ti3 CMY data file from a CMYK + profile, as a basis of creating a CMY to CMYK separation
+ average       Average + + + + + + + + + + + + + + + + or Merge two or more measurement data files, or average patches + within a single file.
+

Creating Device Profiles

+ colprof       + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + Create an ICC profile from the .ti3 test data.
+ mppprof       + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + Create a Model Printer Profile (MPP) from the .ti3 + test data.
+ revfix        + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + Regenerate a device profiles B2A table data by + inverting the A2B table. +

Creating Device Link Profiles

+ collink       + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + Link two device ICC profiles to create a device + link profile. +

Converting colors or applying print calibration
+

+ cctiff        + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + Color convert a TIFF or JPEG file using a sequence + of ICC device, device link, abstract profiles and calibration files. +
+ applycal      Apply + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + calibration curves to an ICC profile.
+ icclu         + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + Lookup individual color values through any ICC + profile table.
+ xicclu        + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + Lookup individual color values forward or inverted + though an ICC profile or CAL table.
+ mpplu         + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + Lookup individual color values though an MPP + profile. Also create MPP gamut files/views.
+ greytiff      Convert + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + a TIFF file to monochrome using an ICC device profile
+

Color Tweaking tools
+

+ refine +        Creates an + abstract profile from two chart readings, useful for refining + proofing profiles.
+ +

Creating gamut views

+ iccgamut      Create + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + a gamut file or VRML file of the color gamut of an ICC profile.
+ tiffgamut     Create + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + a gamut file or VRML file of the color gamut of a TIFF or JPEG + image.
+ viewgam       + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + Convert one or more gamuts into a VRML 3D + visualization file. Compute an intersection.
+

Diagnostic and test tools
+

+ iccdump       + + + + + + + + + + + + + + + + + + + + + + + + + @@ -2009,10 +5029,34 @@ href="http://www.google.com/search?hl=en&q=windows+command+prompt+tutorial"> - Generate a profiling test target values .ti1 file.
- filmtarg      Create + Dump the contents of an ICC profile as text.
+ profcheck     Check + + + + + + + + + + + + + + + + + + + + + + + + + @@ -2074,10 +5118,34 @@ href="http://www.google.com/search?hl=en&q=windows+command+prompt+tutorial"> - film recorder TIFF files from Argyll .ti1 file.
- printtarg     Create + an ICC profile against .ti3 test chart data, create pruned .ti3 + file.
+ invprofcheck  + + + + + + + + + + + + + + + + + + + + + + + + + @@ -2139,12 +5207,33 @@ href="http://www.google.com/search?hl=en&q=windows+command+prompt+tutorial"> - a PS, EPS or TIFF file containing test patch values, ready for - printing. -

Obtaining test results for profiling or print calibration
-

- chartread     Read + Check ICC forward against inverse lookup.
+ splitsti3     Split + + + + + + + + + + + + + + + + + + + + + + + + @@ -2206,11 +5295,16 @@ href="http://www.google.com/search?hl=en&q=windows+command+prompt+tutorial"> - a test chart using an instrument to create a .ti3 data file.
- dispread      Test + a CGATS file (ie. a .ti3) into two parts randomly to verify + profiling.
+ timage +        Create TIFF test + images.
+ mppcheck      Check + + + @@ -2271,11 +5365,6 @@ href="http://www.google.com/search?hl=en&q=windows+command+prompt+tutorial"> - - and read colorimetric values from a display
- filmread      Read @@ -2298,6 +5387,17 @@ href="http://www.google.com/search?hl=en&q=windows+command+prompt+tutorial"> + + an MPP profile against .ti3 test chart data.
+ spotread      Use + + + + + + + @@ -2336,11 +5436,6 @@ href="http://www.google.com/search?hl=en&q=windows+command+prompt+tutorial"> - - film colorimetric values using a SpectroScanT (Deprecated ?)
- scanin        @@ -2380,6 +5475,17 @@ href="http://www.google.com/search?hl=en&q=windows+command+prompt+tutorial"> + + an instrument to read a single spot color value.
+ colverify     Verify + + + + + + + @@ -2402,15 +5508,34 @@ href="http://www.google.com/search?hl=en&q=windows+command+prompt+tutorial"> - Convert a TIFF  image of a test chart into .ti3 - device values.
- illumread     Use an - instrument to measure an illuminant spectrum, and estimate its UV - content.
- fakeread      Fake + matching of CIE in two CGATS/.ti3 files (also view differences as + VRML)
+ synthcal      Create + + + + + + + + + + + + + + + + + + + + + + + + @@ -2472,14 +5597,35 @@ href="http://www.google.com/search?hl=en&q=windows+command+prompt+tutorial"> - the reading of a device using an ICC or MPP profile.
- synthread     Fake the - reading of a device using a synthetic device model.
- cb2ti3        + a synthetic input, display or output calibration (.cal)file. +

Other Tools

+ ccxxmake      Use + + + + + + + + + + + + + + + + + + + + + + + + @@ -2541,11 +5687,15 @@ href="http://www.google.com/search?hl=en&q=windows+command+prompt+tutorial"> - Convert Colorblind format CMY/RGB test chart into - Argyll .ti3 CGATS format.
- kodak2ti3     Convert + a Spectrometer to create a Colorimeter Correction Matrix + (CCMX)  or a Colorimeter Calibration Spectral Set (CCSS)  + for a particular display.
+ extracticc    Extract + + + @@ -2606,11 +5756,6 @@ href="http://www.google.com/search?hl=en&q=windows+command+prompt+tutorial"> - - Kodak Colorflow format CMYK test chart into Argyll .ti3 CGATS - format.
- txt2ti3       @@ -2633,6 +5778,18 @@ href="http://www.google.com/search?hl=en&q=windows+command+prompt+tutorial"> + + an embedded ICC profile from a TIFF or JPEG file.
+ extractttag   Extract a text tag (ie. CGATS + .ti3 data or CAL) from an ICC profile.
+ dispwin       Install + + @@ -2671,12 +5828,6 @@ href="http://www.google.com/search?hl=en&q=windows+command+prompt+tutorial"> - - Convert Gretag/Logo/X-Rite or other format RGB or CMYK - test chart results into Argyll .ti3 CGATS format.
- fakeCMY       @@ -2722,6 +5873,17 @@ href="http://www.google.com/search?hl=en&q=windows+command+prompt+tutorial"> + + or uninstall display profile, set display calibration from profile + or .cal file, test displace and dispwin access to a display.
+ oeminst       + Install Instrument manufacturers files for the + Spyder 2, EDR or CCSS calibration files for i1d3 or Spyder 4 or + 5,  CCMX files for colorimeters.
+ specplot       @@ -2737,12 +5899,6 @@ href="http://www.google.com/search?hl=en&q=windows+command+prompt+tutorial"> - - Create a fake Argyll .ti3 CMY data file from a CMYK - profile, as a basis of creating a CMY to CMYK separation
- average       Average @@ -2802,11 +5958,6 @@ href="http://www.google.com/search?hl=en&q=windows+command+prompt+tutorial"> - - / Merge two measurement data files
-

Creating Device Profiles

- colprof       @@ -2818,6 +5969,11 @@ href="http://www.google.com/search?hl=en&q=windows+command+prompt+tutorial"> + + Plot a spectrum (.sp, .cmf, .ccss) and calculate CCT and VCT.
+ spec2cie      Convert @@ -2867,10 +6023,6 @@ href="http://www.google.com/search?hl=en&q=windows+command+prompt+tutorial"> - - Create an ICC profile from the .ti3 test data.
- mppprof       @@ -2907,6 +6059,14 @@ href="http://www.google.com/search?hl=en&q=windows+command+prompt+tutorial"> + + reflective spectral .ti3 readings into CIE XYZ and D50 L*a*b* + readings. Apply FWA, plot spectrums.
+   +

Main Tools + Alphabetic Listing:

+ applycal      Apply @@ -2931,11 +6091,6 @@ href="http://www.google.com/search?hl=en&q=windows+command+prompt+tutorial"> - - Create a Model Printer Profile (MPP) from the .ti3 - test data.
- revfix        @@ -2997,10 +6152,8 @@ href="http://www.google.com/search?hl=en&q=windows+command+prompt+tutorial"> - Regenerate a device profiles B2A table data by - inverting the A2B table. -

Creating Device Link Profiles

- collink + average       @@ -3062,22 +6215,6 @@ href="http://www.google.com/search?hl=en&q=windows+command+prompt+tutorial"> - - Link two device ICC profiles to create a device - link profile. -

Converting colors or applying print calibration
-

- cctiff        - - - - - - - - - @@ -3103,6 +6240,11 @@ href="http://www.google.com/search?hl=en&q=windows+command+prompt+tutorial"> + + Average or Merge two or more + measurement data files, or average patches within a single file.
+ cb2ti3        @@ -3129,12 +6271,6 @@ href="http://www.google.com/search?hl=en&q=windows+command+prompt+tutorial"> - - Color convert a TIFF or JPEG file using a sequence - of ICC device, device link, abstract profiles and calibration files. -
- applycal      Apply @@ -3195,8 +6331,9 @@ href="http://www.google.com/search?hl=en&q=windows+command+prompt+tutorial"> - calibration curves to an ICC profile.
- icclu Convert Colorblind format CMY/RGB test chart into + Argyll .ti3 CGATS format.
+ cctiff        @@ -3258,11 +6395,6 @@ href="http://www.google.com/search?hl=en&q=windows+command+prompt+tutorial"> - - Lookup individual color values through any ICC - profile table.
- xicclu        @@ -3288,6 +6420,11 @@ href="http://www.google.com/search?hl=en&q=windows+command+prompt+tutorial"> + + Color convert a TIFF or JPEG file using a sequence + of ICC device, device link, abstract profiles and calibration files.
+ ccxxmake      Use @@ -3323,11 +6460,6 @@ href="http://www.google.com/search?hl=en&q=windows+command+prompt+tutorial"> - - Lookup individual color values forward or inverted - though an ICC profile or CAL table.
- mpplu         @@ -3377,6 +6509,12 @@ href="http://www.google.com/search?hl=en&q=windows+command+prompt+tutorial"> + + a Spectrometer to create a Colorimeter Correction Matrix + (CCMX)  or a Colorimeter Calibration Spectral Set (CCSS)  + for a particular display.
+ chartread     Read @@ -3388,11 +6526,6 @@ href="http://www.google.com/search?hl=en&q=windows+command+prompt+tutorial"> - - Lookup individual color values though an MPP - profile. Also create MPP gamut files/views.
- greytiff      Convert @@ -3453,19 +6586,6 @@ href="http://www.google.com/search?hl=en&q=windows+command+prompt+tutorial"> - - a TIFF file to monochrome using an ICC device profile
-

Color Tweaking tools
-

- refine -        Creates an - abstract profile from two chart readings, useful for refining - proofing profiles.
- -

Creating gamut views

- iccgamut      Create @@ -3480,6 +6600,10 @@ href="http://www.google.com/search?hl=en&q=windows+command+prompt+tutorial"> + + a test chart using an instrument to create a .ti3 data file.
+ collink       @@ -3526,10 +6650,6 @@ href="http://www.google.com/search?hl=en&q=windows+command+prompt+tutorial"> - - a gamut file or VRML file of the color gamut of an ICC profile.
- tiffgamut     Create @@ -3569,6 +6689,11 @@ href="http://www.google.com/search?hl=en&q=windows+command+prompt+tutorial"> + + Link two device ICC profiles to create a device + link profile.
+ colprof       @@ -3590,11 +6715,6 @@ href="http://www.google.com/search?hl=en&q=windows+command+prompt+tutorial"> - - a gamut file or VRML file of the color gamut of a TIFF or JPEG - image.
- viewgam       @@ -3655,17 +6775,15 @@ href="http://www.google.com/search?hl=en&q=windows+command+prompt+tutorial"> - - Convert one or more gamuts into a VRML 3D - visualization file. Compute an intersection.
-

Diagnostic and test tools
-

- iccdump       + + Create an ICC profile from the .ti3 test data.
+ colverify     Verify @@ -3722,10 +6840,6 @@ href="http://www.google.com/search?hl=en&q=windows+command+prompt+tutorial"> - - Dump the contents of an ICC profile as text.
- profcheck     Check @@ -3755,6 +6869,14 @@ href="http://www.google.com/search?hl=en&q=windows+command+prompt+tutorial"> + + matching of CIE in two CGATS/.ti3 files (also view differences as + VRML)
+ dispcal +       Adjust, calibrate and + profile a display.
+ dispread      Test @@ -3786,9 +6908,6 @@ href="http://www.google.com/search?hl=en&q=windows+command+prompt+tutorial"> - - an ICC profile against .ti3 test chart data.
- invprofcheck  @@ -3843,16 +6962,17 @@ href="http://www.google.com/search?hl=en&q=windows+command+prompt+tutorial"> + + and read colorimetric values from a display
+ dispwin       Install - - Check ICC forward against inverse lookup.
- splitsti3     Split @@ -3912,14 +7032,6 @@ href="http://www.google.com/search?hl=en&q=windows+command+prompt+tutorial"> - - a CGATS file (ie. a .ti3) into two parts randomly to verify - profiling.
- timage -        Create TIFF test - images.
- mppcheck      Check @@ -3940,6 +7052,12 @@ href="http://www.google.com/search?hl=en&q=windows+command+prompt+tutorial"> + + or uninstall display profile, set display calibration from profile + or .cal file, test displace and dispwin access to a display.
+ extracticc    Extract @@ -3980,10 +7098,6 @@ href="http://www.google.com/search?hl=en&q=windows+command+prompt+tutorial"> - - an MPP profile against .ti3 test chart data.
- spotread      Use @@ -4029,6 +7143,15 @@ href="http://www.google.com/search?hl=en&q=windows+command+prompt+tutorial"> + + an embedded ICC profile from a TIFF or JPEG file.
+ extractttag   Extract a text tag (ie. CGATS + .ti3 data or CAL) from an ICC profile.
+ fakeCMY       @@ -4043,18 +7166,9 @@ href="http://www.google.com/search?hl=en&q=windows+command+prompt+tutorial"> - - an instrument to read a single spot color value.
- colverify     Verify - - matching of CIE in two CGATS/.ti3 files (also view differences as - VRML)
- synthcal      Create @@ -4114,12 +7228,6 @@ href="http://www.google.com/search?hl=en&q=windows+command+prompt+tutorial"> - - a synthetic input, display or output calibration (.cal)file. -

Other Tools

- ccxxmake      Use @@ -4129,6 +7237,11 @@ href="http://www.google.com/search?hl=en&q=windows+command+prompt+tutorial"> + + Create a fake Argyll .ti3 CMY data file from a CMYK + profile, as a basis of creating a CMY to CMYK separation
+ fakeread      Fake @@ -4179,13 +7292,6 @@ href="http://www.google.com/search?hl=en&q=windows+command+prompt+tutorial"> - - a Spectrometer to create a Colorimeter Correction Matrix - (CCMX)  or a Colorimeter Calibration Spectral Set (CCSS)  - for a particular display.
- extracticc    Extract @@ -4221,6 +7327,10 @@ href="http://www.google.com/search?hl=en&q=windows+command+prompt+tutorial"> + + the reading of a device using an ICC or MPP profile.
+ filmread      Read @@ -4246,16 +7356,6 @@ href="http://www.google.com/search?hl=en&q=windows+command+prompt+tutorial"> - - an embedded ICC profile from a TIFF or JPEG file.
- extractttag   Extract a text tag (ie. CGATS - .ti3 data or CAL) from an ICC profile.
- dispwin       Install @@ -4317,16 +7417,11 @@ href="http://www.google.com/search?hl=en&q=windows+command+prompt+tutorial"> - or uninstall display profile, set display calibration from profile - or .cal file, test displace and dispwin access to a display.
- oeminst       - Install Instrument manufacturers files for the - Spyder 2, EDR or CCSS calibration files for i1d3 or Spyder 4,  - CCMX files for colorimeters.
- specplot       + film colorimetric values using a SpectroScanT (Deprecated ?)
+ filmtarg      Create + + @@ -4387,11 +7482,6 @@ href="http://www.google.com/search?hl=en&q=windows+command+prompt+tutorial"> - - Plot a spectrum (.sp, .cmf, .ccss) and calculate CCT and VCT.
- spec2cie      Convert @@ -4415,6 +7505,10 @@ href="http://www.google.com/search?hl=en&q=windows+command+prompt+tutorial"> + + film recorder TIFF files from Argyll .ti1 file.
+ greytiff      Convert @@ -4452,15 +7546,6 @@ href="http://www.google.com/search?hl=en&q=windows+command+prompt+tutorial"> - - spectral .ti3 readings into CIE XYZ or L*a*b* readings. Apply FWA, - plot spectrums.
-   -

Main Tools - Alphabetic Listing:

- applycal      Apply @@ -4509,6 +7594,11 @@ href="http://www.google.com/search?hl=en&q=windows+command+prompt+tutorial"> + + a TIFF file to monochrome using an ICC device profile
+ iccdump       @@ -4520,10 +7610,6 @@ href="http://www.google.com/search?hl=en&q=windows+command+prompt+tutorial"> - - calibration curves to an ICC profile.
- average       @@ -4584,10 +7670,6 @@ href="http://www.google.com/search?hl=en&q=windows+command+prompt+tutorial"> - - Average / Merge two measurement data files
- cb2ti3        @@ -4602,6 +7684,10 @@ href="http://www.google.com/search?hl=en&q=windows+command+prompt+tutorial"> + + Dump the contents of an ICC profile as text.
+ iccgamut      Create @@ -4648,11 +7734,6 @@ href="http://www.google.com/search?hl=en&q=windows+command+prompt+tutorial"> - - Convert Colorblind format CMY/RGB test chart into - Argyll .ti3 CGATS format.
- cctiff        @@ -4692,6 +7773,15 @@ href="http://www.google.com/search?hl=en&q=windows+command+prompt+tutorial"> + + a gamut file or VRML file of the color gamut of an ICC profile.
+ icclu         + + + + + @@ -4713,11 +7803,6 @@ href="http://www.google.com/search?hl=en&q=windows+command+prompt+tutorial"> - - Color convert a TIFF or JPEG file using a sequence - of ICC device, device link, abstract profiles and calibration files.
- ccxxmake      Use @@ -4778,11 +7863,11 @@ href="http://www.google.com/search?hl=en&q=windows+command+prompt+tutorial"> - a Spectrometer to create a Colorimeter Correction Matrix - (CCMX)  or a Colorimeter Calibration Spectral Set (CCSS)  - for a particular display.
- chartread     Read + Lookup individual color values through any ICC + profile table.
+ illumread     Use + @@ -4843,10 +7928,6 @@ href="http://www.google.com/search?hl=en&q=windows+command+prompt+tutorial"> - - a test chart using an instrument to create a .ti3 data file.
- collink       @@ -4870,6 +7951,17 @@ href="http://www.google.com/search?hl=en&q=windows+command+prompt+tutorial"> + + an instrument to measure an illuminant spectrum, and estimate its UV + content.
+ invprofcheck  Check ICC + forward against inverse lookup.
+ kodak2ti3     Convert + + + @@ -4907,11 +7999,6 @@ href="http://www.google.com/search?hl=en&q=windows+command+prompt+tutorial"> - - Link two device ICC profiles to create a device - link profile.
- colprof       @@ -4957,6 +8044,12 @@ href="http://www.google.com/search?hl=en&q=windows+command+prompt+tutorial"> + + Kodak Colorflow format CMYK test chart into Argyll .ti3 CGATS + format.
+ ls2ti3        @@ -4972,11 +8065,6 @@ href="http://www.google.com/search?hl=en&q=windows+command+prompt+tutorial"> - - Create an ICC profile from the .ti3 test data.
- colverify     Verify @@ -5037,14 +8125,6 @@ href="http://www.google.com/search?hl=en&q=windows+command+prompt+tutorial"> - - matching of CIE in two CGATS/.ti3 files (also view differences as - VRML)
- dispcal -       Adjust, calibrate and - profile a display.
- dispread      Test @@ -5055,6 +8135,11 @@ href="http://www.google.com/search?hl=en&q=windows+command+prompt+tutorial"> + + Convert LightSpace format RGB .bcs test chart + results into Argyll .ti3 CGATS format.
+ mppcheck      Check @@ -5105,11 +8190,6 @@ href="http://www.google.com/search?hl=en&q=windows+command+prompt+tutorial"> - - and read colorimetric values from a display
- dispwin       Install @@ -5145,6 +8225,10 @@ href="http://www.google.com/search?hl=en&q=windows+command+prompt+tutorial"> + + an MPP profile against .ti3 test chart data.
+ mpplu         @@ -5170,12 +8254,6 @@ href="http://www.google.com/search?hl=en&q=windows+command+prompt+tutorial"> - - or uninstall display profile, set display calibration from profile - or .cal file, test displace and dispwin access to a display.
- extracticc    Extract @@ -5237,13 +8315,9 @@ href="http://www.google.com/search?hl=en&q=windows+command+prompt+tutorial"> - an embedded ICC profile from a TIFF or JPEG file.
- extractttag   Extract a text tag (ie. CGATS - .ti3 data or CAL) from an ICC profile.
- fakeCMYLookup individual color values though an MPP + profile. Also create MPP gamut files/views.
+ mppprof       @@ -5305,11 +8379,6 @@ href="http://www.google.com/search?hl=en&q=windows+command+prompt+tutorial"> - - Create a fake Argyll .ti3 CMY data file from a CMYK - profile, as a basis of creating a CMY to CMYK separation
- fakeread      Fake @@ -5335,6 +8404,16 @@ href="http://www.google.com/search?hl=en&q=windows+command+prompt+tutorial"> + + Create a Model Printer Profile (MPP) from the .ti3 + test data.
+ oeminst       + Install Instrument manufacturers files for the + Spyder 2, EDR or CCSS calibration files for i1d3 or Spyder 4 or + 5,  CCMX files for colorimeters.
+ printcal      Create @@ -5370,10 +8449,6 @@ href="http://www.google.com/search?hl=en&q=windows+command+prompt+tutorial"> - - the reading of a device using an ICC or MPP profile.
- filmread      Read @@ -5423,6 +8498,10 @@ href="http://www.google.com/search?hl=en&q=windows+command+prompt+tutorial"> + + a printer calibration .cal file from a .ti3 data file.
+ printtarg     Create @@ -5434,10 +8513,6 @@ href="http://www.google.com/search?hl=en&q=windows+command+prompt+tutorial"> - - film colorimetric values using a SpectroScanT (Deprecated ?)
- filmtarg      Create @@ -5498,10 +8573,6 @@ href="http://www.google.com/search?hl=en&q=windows+command+prompt+tutorial"> - - film recorder TIFF files from Argyll .ti1 file.
- greytiff      Convert @@ -5516,6 +8587,12 @@ href="http://www.google.com/search?hl=en&q=windows+command+prompt+tutorial"> + + a PS, EPS or TIFF file containing test patch values, ready for + printing.
+ profcheck     Check + @@ -5562,11 +8639,6 @@ href="http://www.google.com/search?hl=en&q=windows+command+prompt+tutorial"> - - a TIFF file to monochrome using an ICC device profile
- iccdump       @@ -5605,6 +8677,19 @@ href="http://www.google.com/search?hl=en&q=windows+command+prompt+tutorial"> + + an ICC profile against .ti3 test chart data, create pruned .ti3 + file.
+ refine +        Creates an + abstract profile from two chart readings, useful for refining + proofing profiles.
+ revfix        + + + @@ -5627,10 +8712,6 @@ href="http://www.google.com/search?hl=en&q=windows+command+prompt+tutorial"> - - Dump the contents of an ICC profile as text.
- iccgamut      Create @@ -5692,8 +8773,9 @@ href="http://www.google.com/search?hl=en&q=windows+command+prompt+tutorial"> - a gamut file or VRML file of the color gamut of an ICC profile.
- icclu Regenerate a device profiles B2A table data by + inverting the A2B table.
+ scanin        @@ -5755,11 +8837,6 @@ href="http://www.google.com/search?hl=en&q=windows+command+prompt+tutorial"> - - Lookup individual color values through any ICC - profile table.
- illumread     Use @@ -5785,6 +8862,13 @@ href="http://www.google.com/search?hl=en&q=windows+command+prompt+tutorial"> + + Convert a TIFF  image of a test chart into + .ti3 device values.
+ spec2cie      Convert + @@ -5819,14 +8903,6 @@ href="http://www.google.com/search?hl=en&q=windows+command+prompt+tutorial"> - - an instrument to measure an illuminant spectrum, and estimate its UV - content.
- invprofcheck  Check ICC - forward against inverse lookup.
- kodak2ti3     Convert @@ -5877,6 +8953,12 @@ href="http://www.google.com/search?hl=en&q=windows+command+prompt+tutorial"> + + reflective spectral .ti3 readings into CIE XYZ and D50 L*a*b* + readings. Apply FWA, plot spectrums.
+ specplot       @@ -5887,11 +8969,6 @@ href="http://www.google.com/search?hl=en&q=windows+command+prompt+tutorial"> - - Kodak Colorflow format CMYK test chart into Argyll .ti3 CGATS - format.
- mppcheck      Check @@ -5952,10 +9029,6 @@ href="http://www.google.com/search?hl=en&q=windows+command+prompt+tutorial"> - - an MPP profile against .ti3 test chart data.
- mpplu         @@ -5971,6 +9044,10 @@ href="http://www.google.com/search?hl=en&q=windows+command+prompt+tutorial"> + + Plot a spectrum (.sp, .cmf, .ccss) and calculate CCT and VCT.
+ splitsti3     Split @@ -6016,11 +9093,6 @@ href="http://www.google.com/search?hl=en&q=windows+command+prompt+tutorial"> - - Lookup individual color values though an MPP - profile. Also create MPP gamut files/views.
- mppprof       @@ -6060,6 +9132,11 @@ href="http://www.google.com/search?hl=en&q=windows+command+prompt+tutorial"> + + a CGATS file (ie. a .ti3) into two parts randomly to verify + profiling.
+ spotread      Use @@ -6081,16 +9158,6 @@ href="http://www.google.com/search?hl=en&q=windows+command+prompt+tutorial"> - - Create a Model Printer Profile (MPP) from the .ti3 - test data.
- oeminst       - Install Instrument manufacturers files for the - Spyder 2, EDR or CCSS calibration files for i1d3 or Spyder 4,  - CCMX files for colorimeters.
- printcal      Create @@ -6150,14 +9217,15 @@ href="http://www.google.com/search?hl=en&q=windows+command+prompt+tutorial"> - - a printer calibration .cal file from a .ti3 data file.
- printtarg     Create + + an instrument to read a single spot color value.
+ synthcal      Create @@ -6214,11 +9282,6 @@ href="http://www.google.com/search?hl=en&q=windows+command+prompt+tutorial"> - - a PS, EPS or TIFF file containing test patch values, ready for - printing.
- profcheck     Check @@ -6247,6 +9310,11 @@ href="http://www.google.com/search?hl=en&q=windows+command+prompt+tutorial"> + + a synthetic input, display or output calibration (.cal)file.
+ synthread     Fake @@ -6279,15 +9347,6 @@ href="http://www.google.com/search?hl=en&q=windows+command+prompt+tutorial"> - - an ICC profile against .ti3 test chart data.
- refine -        Creates an - abstract profile from two chart readings, useful for refining - proofing profiles.
- revfix        @@ -6341,6 +9400,10 @@ href="http://www.google.com/search?hl=en&q=windows+command+prompt+tutorial"> + + the reading of a device using a synthetic device model.
+ targen        @@ -6348,11 +9411,6 @@ href="http://www.google.com/search?hl=en&q=windows+command+prompt+tutorial"> - - Regenerate a device profiles B2A table data by - inverting the A2B table.
- scanin        @@ -6413,12 +9471,6 @@ href="http://www.google.com/search?hl=en&q=windows+command+prompt+tutorial"> - - Convert a TIFF  image of a test chart into - .ti3 device values.
- spec2cie      Convert @@ -6437,6 +9489,11 @@ href="http://www.google.com/search?hl=en&q=windows+command+prompt+tutorial"> + + Generate a profiling test target values .ti1 file. +
+ tiffgamut     Create @@ -6479,12 +9536,6 @@ href="http://www.google.com/search?hl=en&q=windows+command+prompt+tutorial"> - - spectral .ti3 readings into CIE XYZ or L*a*b* readings. Apply FWA, - plot spectrums.
- specplot       @@ -6528,6 +9579,15 @@ href="http://www.google.com/search?hl=en&q=windows+command+prompt+tutorial"> + + a gamut file or VRML file of the color gamut of a TIFF or JPEG + image.
+ timage +        Create TIFF + test images.
+ txt2ti3       @@ -6545,10 +9605,6 @@ href="http://www.google.com/search?hl=en&q=windows+command+prompt+tutorial"> - - Plot a spectrum (.sp, .cmf, .ccss) and calculate CCT and VCT.
- splitsti3     Split @@ -6608,11 +9664,6 @@ href="http://www.google.com/search?hl=en&q=windows+command+prompt+tutorial"> - - a CGATS file (ie. a .ti3) into two parts randomly to verify - profiling.
- spotread      Use @@ -6622,6 +9673,13 @@ href="http://www.google.com/search?hl=en&q=windows+command+prompt+tutorial"> + + Convert Gretag/Logo/X-Rite/Barbieri or + other format RGB or CMYK test chart results into Argyll .ti3 + CGATS format.
+ viewgam       Convert @@ -6672,11 +9730,6 @@ href="http://www.google.com/search?hl=en&q=windows+command+prompt+tutorial"> - - an instrument to read a single spot color value.
- synthcal      Create @@ -6711,6 +9764,11 @@ href="http://www.google.com/search?hl=en&q=windows+command+prompt+tutorial"> + + one or more gamuts into a VRML 3D visualization file. Compute an + intersection.
+ xicclu        @@ -6736,11 +9794,6 @@ href="http://www.google.com/search?hl=en&q=windows+command+prompt+tutorial"> - - a synthetic input, display or output calibration (.cal)file.
- synthread     Fake @@ -6802,9 +9855,37 @@ href="http://www.google.com/search?hl=en&q=windows+command+prompt+tutorial"> - the reading of a device using a synthetic device model.
- targen        + Lookup individual color values forward or inverted + though an ICC profile or CAL table.
+
+

Environment Variables
+

+ Performance/memory tuning hints, plus + tweaks for scipting.
+

Performance Tuning
+

+ Performance hints.
+

Overview

+ Overview of the software and its aims and functionality.
+

Limitations

+ Limitations of the current functionality.
+

Organization

+ How directories are organized, what they contain. +

Source

+ Any detailed documentation on how the software works, or what + algorithms it is based on. (Very incomplete.) +

Minor Tools

+ A very brief description of minor tools and test harnesses.
+
+
+

File + formats that Argyll uses

+ Argyll uses a number of file formats for its operation, some that + are external standards, and some that are unique to Argyll.
+
+ .ti1            @@ -6865,11 +9946,6 @@ href="http://www.google.com/search?hl=en&q=windows+command+prompt+tutorial"> - - Generate a profiling test target values .ti1 file. -
- tiffgamut     Create @@ -6895,6 +9971,9 @@ href="http://www.google.com/search?hl=en&q=windows+command+prompt+tutorial"> + + Device test values
+ .ti2            @@ -6930,15 +10009,6 @@ href="http://www.google.com/search?hl=en&q=windows+command+prompt+tutorial"> - - a gamut file or VRML file of the color gamut of a TIFF or JPEG - image.
- timage -        Create TIFF - test images.
- txt2ti3       @@ -6989,6 +10059,9 @@ href="http://www.google.com/search?hl=en&q=windows+command+prompt+tutorial"> + + Device test values & chart layout
+ .ti3            @@ -6999,13 +10072,6 @@ href="http://www.google.com/search?hl=en&q=windows+command+prompt+tutorial"> - - Convert Gretag/Logo/X-Rite or other - format RGB or CMYK test chart results into Argyll .ti3 CGATS - format.
- viewgam       Convert @@ -7065,11 +10131,6 @@ href="http://www.google.com/search?hl=en&q=windows+command+prompt+tutorial"> - - one or more gamuts into a VRML 3D visualization file. Compute an - intersection.
- xicclu        @@ -7086,6 +10147,13 @@ href="http://www.google.com/search?hl=en&q=windows+command+prompt+tutorial"> + + Device test values & CIE tristimulus/spectral results  Format details.
+ .cal +            Device + calibration information. Format details.
+ .cht           @@ -7130,38 +10198,6 @@ href="http://www.google.com/search?hl=en&q=windows+command+prompt+tutorial"> - - Lookup individual color values forward or inverted - though an ICC profile or CAL table.
-
-

Environment Variables
-

- Performance/memory tuning hints, plus - tweaks for scipting.
-

Performance Tuning
-

- Performance hints.
-

Overview

- Overview of the software and its aims and functionality.
-

Limitations

- Limitations of the current functionality.
-

Organization

- How directories are organized, what they contain. -

Source

- Any detailed documentation on how the software works, or what - algorithms it is based on. (Very incomplete.) -

Minor Tools

- A very brief description of minor tools and test harnesses.
-
-
-

File - formats that Argyll uses

- Argyll uses a number of file formats for its operation, some that - are external standards, and some that are unique to Argyll.
-
- .ti1            @@ -7203,6 +10239,10 @@ href="http://www.google.com/search?hl=en&q=windows+command+prompt+tutorial"> + + Test chart recognition template. Format + details.
+ .gam         @@ -7222,9 +10262,6 @@ href="http://www.google.com/search?hl=en&q=windows+command+prompt+tutorial"> - - Device test values
- .ti2            @@ -7285,15 +10322,15 @@ href="http://www.google.com/search?hl=en&q=windows+command+prompt+tutorial"> - - Device test values & chart layout
- .ti3            + + 3D gamut surface description
+ .sp            @@ -7348,13 +10385,6 @@ href="http://www.google.com/search?hl=en&q=windows+command+prompt+tutorial"> - - Device test values & CIE tristimulus/spectral results  Format details.
- .cal -            Device - calibration information. Format details.
- .cht           @@ -7386,6 +10416,17 @@ href="http://www.google.com/search?hl=en&q=windows+command+prompt+tutorial"> + + Illuminant spectral description
+ .cmf +          Color Matching + Functions
+ .ccmx +        Colorimeter Correction Matrix
+ .ccss +         Colorimeter Calibration + Spectral Set
+ CGATS      @@ -7415,10 +10456,6 @@ href="http://www.google.com/search?hl=en&q=windows+command+prompt+tutorial"> - - Test chart recognition template. Format - details.
- .gam         @@ -7475,13 +10512,13 @@ href="http://www.google.com/search?hl=en&q=windows+command+prompt+tutorial"> + + Standard text based data exchange format
+ ICC           - - 3D gamut surface description
- .sp            @@ -7542,17 +10579,6 @@ href="http://www.google.com/search?hl=en&q=windows+command+prompt+tutorial"> - - Illuminant spectral description
- .cmf -          Color Matching - Functions
- .ccmx -        Colorimeter Correction Matrix
- .ccss -         Colorimeter Calibration - Spectral Set
- CGATS      @@ -7574,6 +10600,9 @@ href="http://www.google.com/search?hl=en&q=windows+command+prompt+tutorial"> + + International Color Consortium profile format
+ MPP          @@ -7613,9 +10642,6 @@ href="http://www.google.com/search?hl=en&q=windows+command+prompt+tutorial"> - - Standard text based data exchange format
- ICC           @@ -7662,6 +10688,9 @@ href="http://www.google.com/search?hl=en&q=windows+command+prompt+tutorial"> + + Model device profile format
+ TIFF         @@ -7676,9 +10705,6 @@ href="http://www.google.com/search?hl=en&q=windows+command+prompt+tutorial"> - - International Color Consortium profile format
- MPP          @@ -7739,9 +10765,6 @@ href="http://www.google.com/search?hl=en&q=windows+command+prompt+tutorial"> - - Model device profile format
- TIFF         @@ -7753,6 +10776,9 @@ href="http://www.google.com/search?hl=en&q=windows+command+prompt+tutorial"> + + Tag Image File Format raster files.
+ JPEG         @@ -7802,9 +10828,6 @@ href="http://www.google.com/search?hl=en&q=windows+command+prompt+tutorial"> - - Tag Image File Format raster files.
- JPEG         @@ -7841,6 +10864,15 @@ href="http://www.google.com/search?hl=en&q=windows+command+prompt+tutorial"> + + Joint Photographic Experts Group, JPEG File Interchange Format + raster files.
+ ucmm   +     Unix micro Color Management Module convention and + configuration file format and Profile Locations.
+ VRML       + @@ -7865,10 +10897,6 @@ href="http://www.google.com/search?hl=en&q=windows+command+prompt+tutorial"> - - Joint Photographic Experts Group, JPEG File Interchange Format - raster files.
- VRML       @@ -7931,11 +10959,12 @@ href="http://www.google.com/search?hl=en&q=windows+command+prompt+tutorial"> Virtual Reality Modelling Language 3D file format.
+ X3D +           Open + standards file format to represent 3D scenes using XML.
+ X3DOM     + Open-source framework and runtime for 3D graphics on the Web.

- ucmm       Unix micro - Color Management Module convention and configuration file format and - Profile - Locations.
 

Errors, Corrections and Omissions:

If you notice any errors, corrections needed or omissions in the current documentation, please contact the author.
 
-   +  
diff --git a/doc/CMP_Digital_Target-3.jpg b/doc/CMP_Digital_Target-3.jpg deleted file mode 100644 index b6502d5..0000000 Binary files a/doc/CMP_Digital_Target-3.jpg and /dev/null differ diff --git a/doc/CMP_Digital_Target-4.jpg b/doc/CMP_Digital_Target-4.jpg new file mode 100644 index 0000000..f8cb7a9 Binary files /dev/null and b/doc/CMP_Digital_Target-4.jpg differ diff --git a/doc/ChangesSummary.html b/doc/ChangesSummary.html index 82d083f..d0eee96 100644 --- a/doc/ChangesSummary.html +++ b/doc/ChangesSummary.html @@ -16,6 +16,53 @@

Summary of Argyll CMS Changes since last release

For a complete and more detailed list of changes, please see the log.txt file.

+

[V1.6.3 -> V1.7.0] 1st May 2015

+
    +
  • Improved gamut mapping to reduce unnecessary changes to less + saturated colors  such as skin tones.
    • +
  • Add support for DataColor Spyder 5.
    • +
  • Add support for ColorHug2 colorimeter.
    • +
  • Add support for Klein K10-A colorimeter.
    • +
  • Added Google ChromeCast as a test patch generator for Video + displays.
    • +
  • Added ls2ti3 tool to convert LightSpace .bcs files to .ti3.
    • +
  • Added IRIDAS .cube 3DLut format support to collink.
    • +
  • Add X3D and X3DOM support as an alternative to VRML, and make + X3DOM the default.
    • +
  • Add better cross compatibility with non-Argyll ICC profiles + using ArgyllCMS 'arts' tag to mark 'wtpt' Absolute Colorimetric + chromaticity transform, as well as implement proper absolute + colorimetric intent for Display profiles use the 'chad' tag. + Note that the standard ICC profiles provided by ArgyllCMS in the + ref directory (such as sRGB etc.) now include an 'arts' tag.
    • +
  • Ignore any patches that have zero values for creating Display + profiles, unless they are for device zero.
    • +
  • Fix various instrument communications problems for JETI + specbos, DTP20, DTP92 & DTP94.
    • +
  • Fix gestaltSystemVersion warning on OS X 10.10.
    • +
  • Fix very major bug in illumread. It wasn't actually working at + all since V1.4.0.
    • +
  • Added collink -I[gG][:p.p]:x.x options that allows an output + offset gamma curve be targetted instead of BT1886.
    • +
  • Added dispcal and collink -b black point hack. This forces the + input zero to map to the output zero for well behaved displays, + reducing dependence on the instrument accuracy for a very dark + black point.
    • +
  • Added preset list of display techologies to select from in + ccxxmake.
    • +
  • Added a -P prune option to profcheck, that creates a .ti3 file + pruned of any patches that have a delta E fit error greater than + a threshold. This may be of use in eliminating bad reading + values from a measurement set.
    • +
  • Added histogram plot option -h to both profcheck and verify.
    • +
  • Added a dispread & fakeread -Z option to set the number of + bits to quantize the test values to.
    • +
  • Fixed bug in targen - the -V dark emphasis wasn't being + applied to OFPS generated points.
    • +
  • Make sure that if an instrument display reading is interrupted + by a forced calibration, that the user is asked to place it back + on the display before resuming the measurements.
    • +

[V1.6.2 -> V1.6.3] 26th January 2014

  • Added ProPhoto.icm and ProPhotoLin.icm to ref profiles.
    • @@ -870,6 +917,9 @@ + + + @@ -905,6 +955,9 @@ + + + and memory usage issues. diff --git a/doc/ColorManagement.html b/doc/ColorManagement.html index 50505cd..3adcbe8 100644 --- a/doc/ColorManagement.html +++ b/doc/ColorManagement.html @@ -1,7 +1,7 @@ - Color Management @@ -30,8 +30,8 @@ with the interaction of human vision and devices, allowing for such fundamental vision characteristics as white point adaptation and other phenomena. It should also allow the human end purposes to - influence the choice between  tradeoffs in dealing with - practical device limitations.
    + influence the choice of  tradeoffs in dealing with practical + device limitations.

    The key means of implementing color management is to have a way of relating what we see, to the numbers that each device uses to @@ -40,13 +40,14 @@ The human eye is known to have 3 type of receptors responsible for color vision, the long, medium and short wavelength receptors. Because there are 3 receptors, human color perception is a 3 - dimensional phenomena, and therefore at least 3 channels are - necessary when communicating color information. Any device capable - of sensing or reproducing color must therefore have at least 3 - channels, and any numerical representation of a full range of colors - must have at least 3 components and hence may be interpreted as a - point in a 3 dimensional space. Such a representation is referred to - as a Color Space.
    + dimensional phenomena, and therefore at least 3 information channels + are necessary when communicating color information. Any device + capable of sensing or reproducing color must therefore have at least + 3 channels, and any numerical representation of a full range of + colors must have at least 3 components and hence may be interpreted + as a point in a 3 dimensional space. Such a representation is + referred to as a Color Space. +

    Typically color capture and output devices expose their native color spaces in their hardware interfaces. The native color space is @@ -69,13 +70,13 @@ style="font-weight: bold;">CMYK). This is because a Cyan filters out Red wavelengths, Magenta filters out Green wavelengths, and Yellow filters out Blue wavelengths, allowing these colorants to - independently control how much RGB is emitted. Because it's - impossible to make filters that perfectly block C, M or Y - wavelengths without overlapping each other, C+M+Y filters together - tend to let some light through, making for an imperfect black. - Augmenting with an additional Black filter allows improving Black, - but the extra channel greatly complicates the choice of values to - create any particular color.
    + independently control how much RGB is reflected or transmitted. + Because it's impossible to make filters that perfectly block C, M or + Y wavelengths without overlapping each other, C+M+Y filters together + tend to let some light from broadband light sources through, making + for an imperfect black. Augmenting with an additional Black filter + allows improving Black, but the extra channel greatly complicates + the choice of colorant values to create any particular color.

    Many color devices have mechanisms for changing the way they respond to or reproduce color, and such features are called Named profiles represent color anchor points. Device Link and Abstract profiles represent journeys between anchor - points.
    + style="font-weight: bold;">Abstract profiles represent connections + or journeys between anchor points.

    Device

    @@ -184,9 +184,8 @@ Two basic models can be used in ICC profiles, a Matrix/shaper model and a cLUT (Color Lookup Table) model. - Models often contain several optional processing elements that are - applied one after the other in order to provide an overall - transformation.
    + Models often contain several processing elements that are applied + one after the other in order to provide an overall transformation.

    The Matrix/Shaper model consists of a set of per channel lookup curves followed by a 3x3 matrix. The curves may be defined as a @@ -234,8 +233,8 @@ common white point (D50), to facilitate ease of matching colors amongst devices with different white points. Other viewing condition effects (ie. image luminance level, viewing surround luminance and - flare/glare) can be modeled using (for example) using CIECAM02 to - modify XYZ values.
    + flare/glare) can be modeled using (for example) CIECAM02 to modify + XYZ values.

    Another limitation relates to spectral assumptions. CIE XYZ uses a Standard Observer to convert spectral light values into XYZ values, diff --git a/doc/Compiling.html b/doc/Compiling.html index b4fcd7c..942e15e 100644 --- a/doc/Compiling.html +++ b/doc/Compiling.html @@ -2,9 +2,9 @@ + charset=windows-1252"> + charset=windows-1252"> Argyll Compiling @@ -35,7 +35,7 @@     X.Org X11 libXinerama development package
        X.Org X11 libXrandr development package
        X.Org X11 libXScrnSaver A.K.A. libxss-dev - development package + development package
    Setup JAM:
    Argyll makes use of a build system called + Makefile will run Jam with the -f flag.
    +

    +

    Also on Linux and OSX you may have to make sure that certain + environment variables such as HOSTTYPE are exported, so + that other programs can see them.

    You may also have to set the appropriate environment variable to tell the Jambase which compiler you are using.

    @@ -111,7 +115,8 @@ remove everything that has been built, run jam clean. On Linux/OS X you could also just try running make, and the makefile will invoke - jam.
    + jam, or the makeall.ksh shell script file or the makeall.bat file + can be used to invoke jam.

    Something to watch on the Intel versions of OS X 10.4, is that your shell environment variable $MACHTYPE may be incorrect. On @@ -149,22 +154,25 @@ latter SDK to be able to incorporate the  necessary function calls to access display and color profiles on Win2K and latter, so this may not work "out of the box".

    -

    I've also successfully compiled using Microsoft VC++ 8.0 and VC++ - 9.0 Express (the free Microsoft compiler) plus the Microsoft - Platform SDK February 2008. To get this to work though, I had to - create my own batch file to setup the SDK environment variables MSSdk etc., because the batch - files provided with the SDK got confused by the presence of VC++6, - and didn't notice that VC++8 or 9 was configured.

    +

    I've also successfully compiled using Microsoft VC++ 8.0, VC++ + 9.0 and VC++ 10.0 Express (the free Microsoft compiler) plus the + Microsoft Platform SDK February 2008. To get this to work though, + I had to create my own batch file to setup the SDK environment + variables MSSdk etc., + because the batch files provided with the SDK got confused by the + presence of VC++6, and didn't notice that VC++8, 9 or 10 was + configured.

    Note that for some hard to fathom reason VC++ 9.0 refused to install on my Win2K development machine, so I had to install it on a WinXP machine and then copy the installation back to Win2K, and manually complete the installation. There seems to be no reason for this limitation, since the VC++9  compiler/linker etc. seems quite happy to run on Win2K.

    -

    I haven't attempted to compile for Win64, and currently the - Jambase isn't setup for cross compilation, nor have I tried to - setup a native build environment yet on Vista64.
    +

    I have succeeded in cross compiling for Win64 using + x86_64-w64-mingw32-gcc, but currently the Jambase isn't setup for + cross compilation and I used a hack to build the native + executables with a native compiler before invoking the usual Jam + compilation in the cross environment.
     

    diff --git a/doc/Environment.html b/doc/Environment.html index 66dbbe2..d02bf6c 100644 --- a/doc/Environment.html +++ b/doc/Environment.html @@ -2,9 +2,9 @@ + charset=windows-1252"> + charset=windows-1252"> Argyll Environment Variables @@ -15,7 +15,7 @@ The following environment variables affect behaviour:

    - ARGYLL_NOT_INTERACTIVE
    +     ARGYLL_NOT_INTERACTIVE

    Normally Argylls tools expect that they are directly interacting with a user, and use a couple of @@ -43,8 +43,25 @@ interactive mode.

    - ARGYLL_COLMTER_CAL_SPEC_SET
    - ARGYLL_COLMTER_COR_MATRIX
    + ARGYLL_3D_DISP_FORMAT
    +     +
    This overrides the default 3D visualisation file format + for tools such as iccgamut or viewgam. Set to VRML or X3D + + + + or X3DOM, which will result in .wrl, .x3d + and .x3d.html files respectively. See 3d + + + + Viewing Format.
    +
    +
    +     ARGYLL_COLMTER_CAL_SPEC_SET
    + ARGYLL_COLMTER_COR_MATRIX

    Both of these can be used to set a default CCMX or

    - ARGYLL_MIN_DISPLAY_UPDATE_DELAY_MS
    + ARGYLL_MIN_DISPLAY_UPDATE_DELAY_MS
    Normally - a delay of 200 msec is allowed between changing a patch color on a - display, and reading the color with an instrument, although some - instruments (ie. i1d3, i1pro, ColorMunki) will automatically - measure and set an appropriate delay during instrument - calibration. In rare situations this delay may not be sufficient - (ie. some TV's with extensive image processing features turned - on), and a larger delay can be set using the ARGYLL_MIN_DISPLAY_UPDATE_DELAY_MS - environment variable, ie. ARGYLL_MIN_DISPLAY_UPDATE_DELAY_MS=400 - would set a 400 msec minimum delay.
    -
    -
    - ARGYLL_IGNORE_XRANDR1_2
    -
    -     + +a + + + + delay of 200 msec is allowed between changing a patch color in + software, and that change appearing in the displayed color itself. + For some instuments (ie. i1d3, i1pro, ColorMunki, Klein K10-A) + ArgyllCMS will automatically measure and set an appropriate update + delay during instrument calibration. In rare situations this delay + may not be sufficient (ie. some TV's with extensive image + processing features turned on), and a larger delay can be set + using the ARGYLL_MIN_DISPLAY_UPDATE_DELAY_MS + + + + + +environment + + + + variable, ie. ARGYLL_MIN_DISPLAY_UPDATE_DELAY_MS=400 would set a + 400 msec minimum delay.
    +
    +     + ARGYLL_DISPLAY_SETTLE_TIME_MULT
    +
    Normally the display technology type determines how + long is allowed between when a patch color change appears on the + display, and when that change has settled down, and as actually + complete within measurement tolerance. A CRT or Plasma display for + instance, can have quite a long settling delay due to the decay + characteristics of the phosphor used, while an LCD can also have a + noticeable settling delay due to the liquid crystal response time + and any response time enhancement circuitry. [ Instruments without + a display technology type selection such as spectrometers assume a + worst case.].
    + The ARGYLL_DISPLAY_SETTLE_TIME_MULT environment variable allows + the rise and fall times of the model to be scaled to extend or + reduce the settling time. For instance, + ARGYLL_DISPLAY_SETTLE_TIME_MULT=2.0 would double the settling + time, while ARGYLL_DISPLAY_SETTLE_TIME_MULT=0.5 would halve it.
    +
    + ARGYLL_CREATE_WRONG_VON_KRIES_OUTPUT_CLASS_REL_WP
    +     +
    By default ArgyllCMS uses the Bradford sharpened cone + Chromatic adaption matrix in adapting the measured, absolute + colorimetric test data to the PCS (Profile Connection + Space) relative colorimetric D50 white point for all profile + types. This makes the profile handling consistent with the widely + deployed (HP & Microsoft) sRGB and AdobeRGB profiles, as well + as being recommended practice in modelling chromatic + adaption.  The ICC profile format though, specifies the use + of a non-cone space XYZ adaptation (so called "Wrong Von Kries" + chromatic adaptation) [ ICC Specification
    + ICC.1:2001-04 (ICCV2.4) Annex A, pp 66, equations A.1, A.2 & + A.3 ], so ArgyllCMS profiles have a very slight incompatibility + with ICC profiles created strictly according to the ICC + specifications, depending on how close to white Output (i.e. + print) profiles media white is to the perfect diffuser. (Note that + CMM's that strictly follow the ICC specifications have much more + gross incompatibilities due to this, when dealing with the HP + & Microsoft sRGB and AdobeRGB profiles.) By setting this + environment variable, Output (i.e. print) profiles will be created + that better conform to the ICC specification, and  therefore + have better inter-interoperability with some other CMMs, at the + cost of poorer color behavior.
    + See also the ArgyllCMS 'arts' + tag.
    +
    + ARGYLL_CREATE_DISPLAY_PROFILE_WITH_CHAD
    +     +
    The ICC V2 format originally provided no clear mechanism + for Display profiles to use a modern chromatic adaptation + transform in dealing with the D65 white point of typical displays. + Profile makers ended up taking two different approaches :- one was + to use a Bradford chromatic transform for the media (display) + white to PCS D50 (this approach being used by the widely deployed + HP & Microsoft sRGB and AdobeRGB profiles, as well as + ArgyllCMS profiles by default), and the other was to apply the + Bradford transform to the measurement data and then disable + Absolute Intent for display profiles by setting the + mediaWhitePoint tag to D50. The latter approach was supplemented + later on with the introduction of the ChromaticAdapation ('chad') + tag, but this did not restore the Absolute Colorimetric capability + to Display profiles. The latter approach has also been adopted + more formally in the ICC V4 specifications. To improve restore the + Absolute Intent for such profiles, ArgyllCMS will make use of the + 'chad' tag in such profiles when Absolute Colorimetric intent is + requested, but by default does not create such profiles. Setting + this environment variable causes it to create Display profiles in + the fashion dictated by the ICC V4 spec. :- setting the + mediaWhitePoint tag to D50 and storing the display media white to + D50 matrix in the 'chad' tag. (This approach has slightly poorer + accuracy for Absolute Intent than ArgyllCMS's default.)
    +
    + ARGYLL_CCAST_DEFAULT_RECEIVER
    +     +
    By default the ChromeCast test patch source uses a + special receiver application that gets the test patch data + directly. By setting this environment variable to true, the + default Google ChromeCast receiver will be used, making use of a + local web server to provide the images. This is slower than the + special reciever, but can be used as a fallback.
    +
    + ARGYLL_IGNORE_XRANDR1_2
    +
    +
    On an X11 system, if this is set (ie. set it to "yes"), then the presence of the XRandR 1.2 extension will be ignored, and @@ -89,37 +222,45 @@ implementations.

    - ARGYLL_DISABLE_I1PRO2_DRIVER
    + ARGYLL_DISABLE_I1PRO2_DRIVER

     -
    There is now partial support for the - Eye-One Pro Rev E (aka Eye-One Pro 2) instrument, but a Rev E can - be operated in legacy mode if the environment variable +
    There is now support for most of the + the Eye-One Pro Rev E (aka Eye-One Pro 2) instrument features, but + a Rev E can be operated in legacy mode if the environment variable ARGYLL_DISABLE_I1PRO2_DRIVER is set (ie. set it to "yes").

    - XDG_CACHE_HOME
    + XDG_CACHE_HOME
    Argyll tries to follow the XDG - Base Directory Specification, and uses the , and uses the XDG_CACHE_HOME environment - variable to place per instrument calibration information (Eye-One - Pro and ColorMunki instruments).
    + variable to place per instrument calibration information, and + .ccmx and .ccss files.

    - XDG_CONFIG_DIRS
    - XDG_DATA_DIRS
    + XDG_CONFIG_DIRS
    + XDG_DATA_DIRS

    On Unix type operating systems, configuration and profiles for displays are placed relative to these environment variables.
    -
    -          
    +       

    See Performance Tuning for other variables.
    diff --git a/doc/FWA.html b/doc/FWA.html index c1d4c6d..c6b1f4b 100644 --- a/doc/FWA.html +++ b/doc/FWA.html @@ -3,7 +3,7 @@ Fluorescent Whitener Additive Compensation + charset=windows-1252">

    Fluorescent Whitener Additive Compensation (FWA Compensation)

    @@ -179,13 +179,13 @@ specifying the same illuminant, and (optionally) the same observer model.

    - In practice it is possible to compensate for the color shift that + [ In practice it is possible to compensate for the color shift that results in viewing the media under non-D50 illumination or using a non 1931_2 observer, or allowing for FWA effects without severe incompatibility because all rendering intents except absolute rendering normalize to the media color, rendering the media white as white, even though the absolute values are not measured using a D50 - illuminant.
    + illuminant. ]

    Using FWA compensation for single, general use profiles

    For creating ICC profiles that will be interchanged with other unknown ICC profiles, or used with non-print source or destination diff --git a/doc/File_Formats.html b/doc/File_Formats.html index aa0f4f4..1741701 100644 --- a/doc/File_Formats.html +++ b/doc/File_Formats.html @@ -25,6 +25,8 @@ MPP
    TIFF
    VRML
    + X3D
    + X3DOM

    .ti1

    Target Information 1 data. This is an ASCII text, CGATS, @@ -176,7 +178,29 @@ these can be viewed with a suitable standalone VRML viewer, or a plug in for a web browser. VRML97 is International Standard ISO/IEC 14772-1:1997. See http://www.vrml.org/ - for more information.
    + for more information. See 3D Viewing Format + for switching to VRML output format.
    +
    +

    X3D

    + X3D is a royalty-free ISO standard XML-based file format for + representing 3D computer graphics. It is successor to the Virtual + Reality Modeling Language (VRML).  See http://www.web3d.org/ for more + information. See 3D Viewing Format for + switching X3D output format.
    +
    +

    X3DOM

    + X3DOM is an open-source framework and runtime for 3D graphics on the + Web. It can be freely used for non-commercial and commercial + purposes, and is dual-licensed under MIT and GPL license. The + javascript runtime displays embeded X3D files in browsers that + support WebGL.
    + See http://www.x3dom.org/ for + more information about this format.
    + To check if your browser supports X3DOM, try this test page.
    + For more information about ArgyllCMS use of it, see 3D Viewing Format.



    diff --git a/doc/Installing.html b/doc/Installing.html index a759044..79d8ade 100644 --- a/doc/Installing.html +++ b/doc/Installing.html @@ -2,22 +2,20 @@ + charset=windows-1252"> + charset=windows-1252"> Argyll Installation -

    - Installing the software

    +

    Installing the software


    Argyll doesn't come with any installation programs or scripts, so installation is a manual process. Because things are mostly self-contained, this isn't particularly onerous. In general the - steps - are:
    + steps are:

    1) Provide somewhere for the executables to reside
    2) Provide a means of the shell finding the executables
    @@ -28,22 +26,19 @@ system:

    Microsoft + Windows
    Apple OS X
    Linux/UNIX X11

    -     If you have a Spyder 2, Spyder 4, Xrite i1 DisplayPro or +     If you have a Spyder 2, Spyder 4 or 5, Xrite i1 DisplayPro or ColorMunki Display colorimeter, please also see oeminst.


    -   -
    -   -
    -   -
    -   -

    +  
    +  
    +  
    +  

    diff --git a/doc/Installing_Linux.html b/doc/Installing_Linux.html index 608ff7d..a26d64c 100644 --- a/doc/Installing_Linux.html +++ b/doc/Installing_Linux.html @@ -2,9 +2,9 @@ + charset=windows-1252"> + charset=windows-1252"> Argyll Installation on Linux @@ -46,6 +46,11 @@ + + + + + the /etc/rc.local startup script. You may also have to run xset @@ -53,6 +58,11 @@ + + + + + b 100 1000 100 in your local setup, if you are running in an X11 environment. You can check that the system bell is operating by doing an "echo ^G", where ^G is ctrl-G.
    @@ -172,45 +182,88 @@ probably need to disable libmtp (look in the udev configuration).

    The JETI specbos 1211 and 1201 makes use of - the FTDI Virtual - COM Port Drivers (VCP), that should come with any recent - version of Linux.
    + style="font-weight: bold;">     and 1201, and the Klien + + + + + K10A makes use of the FTDI Virtual COM + Port Drivers (VCP), that should come with any recent version + of Linux. You may have to add yourself to the dialout group + to be able to open the instrument.

    No device configuration needed:
    - Some systems have in place  a security configuration such that + A few systems have in place  a security configuration such that anyone logging in at the console of a machine has access to all the local devices.
    USB - instruments access using udev:
    + instruments access using udev with existing     /etc/udev/rules.d or + /usr/lib/udev/rules.d/69-cd-sensors.rules + file.
    - Most recent systems - use udev to manage device names and permissions, but by default - color instruments may not be accessible to normal system users.
    + Recent Fedora based + systems include Gnome Color Manager, which comes with a udev rule + for color instruments. You can check this by looking for the /etc/udev/rules.d or in /usr/lib/udev/rules.d/69-cd-sensors.rules + file. If this exists and is up to date enough to include the + instrument you want to use, then all you have to do is add yourself + to the colord group, ie:
    +
    +    sudo usermod -a -G colord $USER
    +
    + If the 69-cd-sensors.rules file is out of date and does not + include the latest instruments supported by Argyll, then the + simplest thing to do is to replace the 69-cd-sensors.rules + file with the usb/55-Argyll.rules. You will need + to do this as root, and set the owner as root, group root, + permissions 644. You may need to re-plug in your instrument to get + changes to the udev rules recognised.
    +
    USB + instruments access using udev, with no existing /etc/udev/rules.d or /usr/lib/udev/rules.d/69-cd-sensors.rules + file.
    +
    + Most recent systems use udev to manage device names and permissions, + but by default color instruments may not be accessible to normal + system users.
    To solve this a udev rule file needs to be added that modifies the group and permission of any Color Measurement Instruments, and you may then need to add yourself to that group.

    + First check whether other rules are in /etc/udev/rules.d or in /usr/lib/udev/rules.d, + and use the appropriate directory.
    + (You may also want to check in that directory whether + 55-Argyll.rules or some other .rules file that is setup to enable + color instruments already exists in that directory.)
    +
    Copy the file usb/55-Argyll.rules from the binary or source distribution into /etc/udev/rules.d/55-Argyll.rules - with owner root, group root, permissions 644.
    - (There may already be a file that handles some of the color - instruments as part of your installation. You need to check though - that it is up to date.)
    + or /usr/lib/udev/rules.d/55-Argyll.rules + + + + (as appropriate) with owner root, group root, + permissions 644.

    If you are on an older system that uses a udev that doesn't recognize the syntax used in 55-Argyll.rules, or that doesn't have rules to create the libusb /dev/bus/usb/00X/00Y device entries, you should install the usb/45-Argyll.rules file - instead.
    + style="font-weight: bold;">usb/45-Argyll.rules     file instead + - See below.

    On recent systems the new rules file will be notices as soon as you plug the instrument in again.
    @@ -221,128 +274,15 @@ + + + + + /sbin/udevcontrol reload_rules or  /sbin/udevstart or reboot to get the new file noticed.

    - ----------------- cut here ---------------------
    - # udev rule to recognize instruments and make them accessible to - user applications.
    - # Copy this to /etc/udev/rules.d/55-Argyll.rules
    -
    - # Skip all this to speed things up if it'a not a usb add.
    - ACTION!="add", GOTO="argyll_rules_end"
    - SUBSYSTEM!="usb", GOTO="argyll_rules_end"
    -
    - # Recognize the color measurement devices
    -
    - # Colorimtre HCFR
    - ATTRS{idVendor}=="04db", ATTRS{idProduct}=="005b", - ENV{COLOR_MEASUREMENT_DEVICE}="1"
    -
    -
    - # MonacoOPTIX (Same as i1 Display 1)
    - ATTRS{idVendor}=="0670", ATTRS{idProduct}=="0001", - ENV{COLOR_MEASUREMENT_DEVICE}="1"
    -
    -
    - # HueyL (not tested)
    - ATTRS{idVendor}=="0765", ATTRS{idProduct}=="5001", - ENV{COLOR_MEASUREMENT_DEVICE}="1"
    -
    - # HueyL (not tested)
    - ATTRS{idVendor}=="0765", ATTRS{idProduct}=="5010", - ENV{COLOR_MEASUREMENT_DEVICE}="1"
    -
    - # i1Display 3
    - ATTRS{idVendor}=="0765", ATTRS{idProduct}=="5020", - ENV{COLOR_MEASUREMENT_DEVICE}="1"
    -
    - # ColorMunki Smile
    - ATTRS{idVendor}=="0765", ATTRS{idProduct}=="6003", - ENV{COLOR_MEASUREMENT_DEVICE}="1"
    -
    - # DTP20
    - ATTRS{idVendor}=="0765", ATTRS{idProduct}=="d020", - ENV{COLOR_MEASUREMENT_DEVICE}="1"
    -
    - # DTP92Q (not tested)
    - ATTRS{idVendor}=="0765", ATTRS{idProduct}=="d092", - ENV{COLOR_MEASUREMENT_DEVICE}="1"
    -
    - # DTP94
    - ATTRS{idVendor}=="0765", ATTRS{idProduct}=="d094", - ENV{COLOR_MEASUREMENT_DEVICE}="1"
    -
    -
    - # i1Pro
    - ATTRS{idVendor}=="0971", ATTRS{idProduct}=="2000", - ENV{COLOR_MEASUREMENT_DEVICE}="1"
    -
    - # i1Monitor
    - ATTRS{idVendor}=="0971", ATTRS{idProduct}=="2001", - ENV{COLOR_MEASUREMENT_DEVICE}="1"
    -
    - # i1Display
    - ATTRS{idVendor}=="0971", ATTRS{idProduct}=="2003", - ENV{COLOR_MEASUREMENT_DEVICE}="1"
    -
    - # i1 io table (not tested)
    - ATTRS{idVendor}=="0971", ATTRS{idProduct}=="2004", - ENV{COLOR_MEASUREMENT_DEVICE}="1"
    -
    - # Huey
    - ATTRS{idVendor}=="0971", ATTRS{idProduct}=="2005", - ENV{COLOR_MEASUREMENT_DEVICE}="1"
    -
    - # i1 iSis (not tested)
    - ATTRS{idVendor}=="0971", ATTRS{idProduct}=="2006", - ENV{COLOR_MEASUREMENT_DEVICE}="1"
    -
    - # ColorMunki
    - ATTRS{idVendor}=="0971", ATTRS{idProduct}=="2007", - ENV{COLOR_MEASUREMENT_DEVICE}="1"
    -
    -
    - # Spyder 1
    - ATTRS{idVendor}=="085c", ATTRS{idProduct}=="0100", - ENV{COLOR_MEASUREMENT_DEVICE}="1"
    -
    - # Spyder 2
    - ATTRS{idVendor}=="085c", ATTRS{idProduct}=="0200", - ENV{COLOR_MEASUREMENT_DEVICE}="1"
    -
    - # Spyder 3
    - ATTRS{idVendor}=="085c", ATTRS{idProduct}=="0300", - ENV{COLOR_MEASUREMENT_DEVICE}="1"
    -
    - # Spyder 4
    - ATTRS{idVendor}=="085c", ATTRS{idProduct}=="0400", - ENV{COLOR_MEASUREMENT_DEVICE}="1"
    -
    -
    - # ColorHug, old and new
    - ATTRS{idVendor}=="04d8", ATTRS{idProduct}=="f8da", - ENV{COLOR_MEASUREMENT_DEVICE}="1"
    - ATTRS{idVendor}=="273f", ATTRS{idProduct}=="1001", - ENV{COLOR_MEASUREMENT_DEVICE}="1"
    -
    -
    - # Let udev-acl manage these devices, if it's available
    - TEST=="/var/run/ConsoleKit/database", - ENV{COLOR_MEASUREMENT_DEVICE}=="*?", ENV{ACL_MANAGE}="1"
    -
    - # Otherwise, restrict access to members of the plugdev group,
    - # which the user may have to add to the system.
    - ENV{COLOR_MEASUREMENT_DEVICE}=="*?", ENV{ACL_MANAGE}!="*?", - MODE="660", GROUP="plugdev"
    -
    - # Set ID_VENDOR and ID_MODEL acording to VID and PID
    - IMPORT{program}="usb-db %p"
    -
    - LABEL="argyll_rules_end"
    - ----------------- cut here ---------------------
    -
    (You may want to refer to this document for more guidance on modifying udev rules, as well as @@ -352,50 +292,48 @@ href="http://www.google.com/search?hl=en&q=man+udev&btnG=Search&meta YOU THEN MAY NEED TO:

    If your system is not using - the new ACL to manage device access for console users (the file /lib/udev/udev-acl doesn't exist - on your system), then you will need to add yourself to the plugdev group, if you are not - already a member of it. You can do this either by using a "Users and - Groups" system administration tool, or on the command line running - as root:
    + the ACL to manage device access for console users (the file /var/run/ConsoleKit/database + doesn't exist on your system), then you will need to add yourself to + the colord group, if you + are not already a member of it. You can do this either by using a + "Users and Groups" system administration tool, or on the command + line running as root:

    -    sudo usermod -a -G plugdev yourusernamehere
    +    sudo usermod -a -G colord $USER

    or
        su root
    -     usermod -a -G plugdev yourusernamehere
    +     usermod -a -G colord $USER

    (If the usermod program isn't found as root, it might be in /usr/sbin, ie. use /usr/sbin/usermod .... etc.
     If usermod doesn't recognize the -a flag try "usermod -A - plugdev yourusernamehere".
    + colord $USER".
     If this doesn't work you will have to run "id yourusername" to list the current supplemental
    -  groups, and add them plus plugdev using just "usermod -G +  groups, and add them plus colord using just "usermod -G group1,group2,... yourusername")

    - You may find that the plugdev - group doesn't exist on your system, and if so you will need to - create it:
    + You may find that the colord group doesn't exist on + your system, and if so you will need to create it:

    -   sudo groupadd -r plugdev
    +   sudo groupadd -r colord

    - and then add yourself to the plugdev group.
    + and then add yourself to the colord group.

    You may have to log out and then in again for the groups to become effective.

    You can check whether the instrument is being recognized and set to - the plugdev group by comparing the output of ls -l -R /dev/bus/usb without and then with the instrument plugged in.

    You can test whether your instrument is accessible by plugging it in and then running "spotread -?" and looking for it listed after the -c option.
    -  
    USB instruments @@ -404,6 +342,11 @@ instruments + + + + + access using hotplug:
    Under much older versions of Linux, @@ -419,78 +362,6 @@ instruments with owner root, group root, permissions 644.

    -     ----------------- cut here ---------------------
    - # hotplug device mapping to handling script.
    - # Copy this to /etc/hotplug/usb/Argyll.usermap
    - #
    - # Detect instruments by their USB VID and PID
    - #
    - # DTP20
    - Argyll 0x0003 0x0765 0xd020 0x0000 0x0000 0x00 0x00 0x00 0x00 0x00 - 0x00 0x00000000
    - #
    - # DTP92Q - not tested
    - Argyll 0x0003 0x0765 0xd092 0x0000 0x0000 0x00 0x00 0x00 0x00 0x00 - 0x00 0x00000000
    - #
    - # DTP94
    - Argyll 0x0003 0x0765 0xd094 0x0000 0x0000 0x00 0x00 0x00 0x00 0x00 - 0x00 0x00000000
    - #
    - # MonacoOPTIX (Same as i1 Display 1)
    - Argyll 0x0003 0x0670 0x0001 0x0000 0x0000 0x00 0x00 0x00 0x00 0x00 - 0x00 0x00000000
    - #
    - # i1 Display
    - Argyll 0x0003 0x0971 0x2003 0x0000 0x0000 0x00 0x00 0x00 0x00 0x00 - 0x00 0x00000000
    - #
    - # i1 Display 3
    - Argyll 0x0003 0x0765 0x5020 0x0000 0x0000 0x00 0x00 0x00 0x00 0x00 - 0x00 0x00000000
    - #
    - # i1 Monitor
    - Argyll 0x0003 0x0971 0x2001 0x0000 0x0000 0x00 0x00 0x00 0x00 0x00 - 0x00 0x00000000
    - #
    - # i1 Pro
    - Argyll 0x0003 0x0971 0x2000 0x0000 0x0000 0x00 0x00 0x00 0x00 0x00 - 0x00 0x00000000
    - #
    - # ColorMunki
    - Argyll 0x0003 0x0971 0x2007 0x0000 0x0000 0x00 0x00 0x00 0x00 0x00 - 0x00 0x00000000
    - #
    - # ColorMunki Smile
    - Argyll 0x0003 0x0765 0x6003 0x0000 0x0000 0x00 0x00 0x00 0x00 0x00 - 0x00 0x00000000
    - #
    - # Colorimtre HCFR
    - Argyll 0x0003 0x04DB 0x005B 0x0000 0x0000 0x00 0x00 0x00 0x00 0x00 - 0x00 0x00000000
    - #
    - # Spyder 2
    - Argyll 0x0003 0x085C 0x0200 0x0000 0x0000 0x00 0x00 0x00 0x00 0x00 - 0x00 0x00000000
    - #
    - # Spyder 3
    - Argyll 0x0003 0x085C 0x0300 0x0000 0x0000 0x00 0x00 0x00 0x00 0x00 - 0x00 0x00000000
    - #
    - # Spyder 4
    - Argyll 0x0003 0x085C 0x0400 0x0000 0x0000 0x00 0x00 0x00 0x00 0x00 - 0x00 0x00000000
    - #
    - # Huey
    - Argyll 0x0003 0x0971 0x2005 0x0000 0x0000 0x00 0x00 0x00 0x00 0x00 - 0x00 0x00000000
    - #
    - # ColorHug
    - Argyll 0x0003 0x04D8 0xF8DA 0x0000 0x0000 0x00 0x00 0x00 0x00 0x00 - 0x00 0x00000000
    - Argyll 0x0003 0x273F 0x1001 0x0000 0x0000 0x00 0x00 0x00 0x00 0x00 - 0x00 0x00000000
    -     ----------------- cut here ---------------------

     (For even older versions, append the lines above to /etc/hotplug/usb.usermap, and @@ -502,49 +373,37 @@ instruments with owner root, group root, permissions 744.

    -     ----------------- cut here ---------------------
    - #!/bin/sh
    - # Copy to /etc/hotplug/usb/Argyll
    - #
    - # Argyll hotplug script. Adds the USB devices to the plugdev group.
    - if [ "${ACTION}" = "add" ] && [ -f "${DEVICE}" ]
    - then
    -     chgrp plugdev "${DEVICE}"
    -     chmod 660 "${DEVICE}"
    - fi
    -     ----------------- cut here ---------------------
    -
    YOU THEN NEED TO:

    You will then need to add - yourself to the plugdev + yourself to the colord group, if you are not already a member of it. You can do this either by using a "Users and Groups" system administration tool, or on the command line running as root:

    -    sudo usermod -a -G plugdev yourusernamehere
    +    sudo usermod -a -G colord $USER

    or
        su root
    -     usermod -a -G plugdev yourusernamehere
    +     usermod -a -G colord $USER


    (If the usermod program isn't found as root, it might be in /usr/sbin, ie. use /usr/sbin/usermod .... etc.
     If usermod doesn't recognize the -a flag try "usermod -A - plugdev yourusernamehere".
    + colord $USER".
     If this doesn't work you will have to run "id yourusername" to list the current suplemental
    -  groups, and add plugdev using just "usermod -G +  groups, and add colord using just "usermod -G group1,group2,... yourusername")

    - You may find that the plugdev + You may find that the colord group doesn't exist on your system, and if so you will need to create it:

    -   sudo groupadd -r plugdev
    +   sudo groupadd -r colord

    - and then add youself to the plugdev group.
    + and then add youself to the colord group.

    You may have to log out and then in again for the groups to become effecive.
    @@ -561,6 +420,11 @@ instruments + + + + + access:
    If you have a serial instrument then you may find that by default @@ -573,16 +437,16 @@ instruments administration tool, or on the command line using "usermod":

        su root
    -     usermod -a -G tty,uucp yourusernamehere
    +     usermod -a -G tty,uucp $USER

    or

    -    sudo usermod -a -G tty,uucp yourusernamehere
    +    sudo usermod -a -G tty,uucp $USER

    (If the usermod program isn't found as root, it might be in /usr/sbin, ie. use /usr/sbin/usermod .... etc.
     If usermod doesn't recognize the -a flag try "usermod -A - plugdev yourusernamehere".
    + colord $USER".
     If this doesn't work you will have to run "id yourusername" to list the current suplemental
     groups, and add a tty or uucp group using just "usermod -G diff --git a/doc/Installing_MSWindows.html b/doc/Installing_MSWindows.html index c08e16d..40dcd2c 100644 --- a/doc/Installing_MSWindows.html +++ b/doc/Installing_MSWindows.html @@ -31,7 +31,8 @@ You should also configure your %PATH% environment variable to give access to the executables from your command line environment.

    - For Windows 8, look in
    + For Windows 8 & 8.1, + look in
        Desktop -> Settings -> Control Panel -> System And Security -> System -> Advanced System Settings -> Environment Variables
    @@ -60,9 +61,9 @@
     So if the current value of PATH is "%SystemRoot%\system32;%SystemRoot%" and you unpacked Argyll version - 1.6.3 in d:\bin\, then you + 1.7.0 in d:\bin\, then you would modify PATH to be - "%SystemRoot%\system32;%SystemRoot%;d:\bin\Argyll_V1.6.3\bin", - + "%SystemRoot%\system32;%SystemRoot%;d:\bin\Argyll_V1.7.0\bin", - i.e. you append the path to the Argyll binaries to your PATH, separated by the ';' character. The change will take effect when you start a new command shell, which you start from Start @@ -77,14 +78,14 @@ doc sub-directory, and instrument USB drivers in the usb directory.

    NOTE: Vista 64/Windows 7 & 8  64 bit - and Beep prompt: Microsoft (in its infinite - wisdom) has removed the built in speaker driver, and now relies on - systems having a sound card and speakers's installed and turned on - to hear system beeps. So if you're wondering where the beeps have - gone when using chartread, now you - know.
    + style="font-weight: bold;">Vista 64/Windows 7, 8 & 8.1  + 64 bit and Beep + prompt: Microsoft (in its + infinite wisdom) has removed the built in speaker driver, and now + relies on systems having a sound card and speakers's installed and + turned on to hear system beeps. So if you're wondering where the + beeps have gone when using chartread, + now you know.

    NOTE: Microsofts generic VGA Driver does not appear to support setting the display VideoLUTs. You will @@ -134,7 +135,7 @@
    If you are using the JETI specbos 1211 or 1201, - then you may need to install the Klein K10A then you may need to install the FTDI Virtual COM Port Drivers (VCP), if they are not already on your system.

    @@ -147,7 +148,8 @@ Windows 2000

    Windows 8
    + size="+1">Windows 8 & 8.1

    To install the Argyll driver for the first instrument:
    -     (Plug in instrument)
    +     Settings -> Power -> Hold Shift Key down and click + "Restart" -> Troubleshoot -> Advanced Options -> Startup + Settings -> Restart ->
    +     (After Reboot) -> "Disable Driver Signature + Enforcement" (number 7 on the list)
    +     (After system starts, Plug in instrument)
        Desktop -> Settings -> Control Panel -> Hardware and Sound -> Device Manager ->
        Other Devices -> <instrument being @@ -191,7 +199,13 @@
    To install the Argyll Driver:
    -     (Plug in instrument)
    +     Settings -> Power -> Hold Shift Key down and click + "Restart" -> Troubleshoot -> Advanced Options -> Startup + Settings -> Restart ->
    +     (After Reboot) -> Disable Driver Signature + Enforcement" (number 7 on the list)
    +     (After system starts, Plug in instrument)
        Desktop -> Settings -> Control Panel -> Hardware and Sound -> Device Manager
        (Locate the instrument in the device list. It may diff --git a/doc/Installing_OSX.html b/doc/Installing_OSX.html index 8a17291..fb01e4a 100644 --- a/doc/Installing_OSX.html +++ b/doc/Installing_OSX.html @@ -1,313 +1,354 @@ - - - - - - - Argyll Installation on Apple OS X - - -

    Installing the software on Apple OS X
    -

    -
    - You will need to unpack the downloaded file in the location you have - chosen to hold the executable files. Typically this might be in /usr/bin, or perhaps $HOME/bin/, or even $HOME.
    -
    - You can unpack it by control-click on the downloaded file and “Open - With” BOMArchiveHelper or Archive Utility. Drag the resulting folder - to where you want it, e.g. into your home folder (/Users/usrnam - where usrnam is your username).
    -
    - Alternatively you can unpack it on the command line using  the - command tar -zxf archivename.tgz, which will - create a directory Argyll_VX.X.X, - where X.X.X is the version number, and the executables will be in Argyll_VX.X.X/bin.
    -
    - Open a Terminal shell. This will be in - Applications->Utilities->Terminal (Dragging it to the dock is - a good idea to make it more accessible).
    -
    - You will have to configure your $PATH environment variable to give - access to the executable from your command line environment, by - editing your .profile file. - You can do this using a graphical editor, by using the open command:
    -
    -   ~$open .profile
    -
    - or by using some other editor, such as vi.
    -
    - And add a line similar to the following line to your .path file
    -
    -   PATH=$PATH:$HOME/Argyll_VX.X.X/bin
    -
    - where "$HOME/Argyll_VX.X.X/bin" is the path to the executable - directory.
    -
    - If you are unfamiliar with how to do this, consult an appropriate - tutorial, e.g. <ShellIntro>. -The -.tgz -file -also -contains -several -useful -reference - - - - files (such as scanner chart recognition templates, sample - illumination spectrum etc.) in the ref sub-directory, as well as all - the current documentation in a doc sub-directory.
    -
    - For most devices there is nothing special to do. Plug in and go. - Some devices may not work without some extra help though:
    -

    X-Rite ColorMunki

    - Some version of X-Rite's ColorMunki drivers released between 2009 - and 2011 install an X-Rite daemon that runs as root and grabs the - device, preventing any other programs (such as Argyll) from opening - them. Latter versions seem to be more cooperative, and don't suffer - from this problem. There are three ways of working around this - problem:
    -
    - 1) Turn off the X-Rite service for the ColorMunki. See <http://www.xrite.com/product_overview.aspx?ID=1161&Action=support&SupportID=4980>.
    -
    - 2) Run all Argyll programs that need to access the instrument as - root. For instance:
    -
    -     sudo spotread
    -
    - and then you will be asked for the root password.
    - While these methods will work, they are incovenient.
    -
    - 3) Alter the X-Rite drivers Daeomon so that it runs under your user - account.
    -
    - To do this you need to edit the script that controls the X-Rite - Daemon.
    -
    -     cd ~
    -     whoami
    -     cp - /Library/LaunchDaemons/com.xrite.device.colormunki.plist temp.plist
    -     open temp.plist
    -
    - and add one child below the root:
    -
    + + + + + + + Argyll Installation on Apple OS X + + +

    Installing the software on Apple OS X
    +

    +
    + You will need to unpack the downloaded file in such a way that the + files it contains end up in the location you have chosen to hold its + contents.
    +
    + If you want to install it system wide, then you probably want to + unpack it in the /Applications folder, so that it ends up in + the /Applications/Argyll_VX.X.X folder.
    + Another option is just to install it somewhere under your $HOME + folder, such as $HOME/Argyll_VX.X.X + or $HOME/bin/Argyll_VX.X.X, + depending on how you like to organize your applications and utility + programs. ($HOME is the shell symbolic name for your home folder, + typically /Users/username. Another abbreviation for it is the + ~ character.)
    +
    + You can unpack it by control-click on the downloaded file and “Open + With” BOMArchiveHelper or Archive Utility. Drag the resulting folder + to where you want it, e.g. into /Applications, $HOME + or $HOME/bin.
    +
    + Alternatively you can unpack it on the command line using  the + command tar -zxf archivename.tgz, which will + create a folder Argyll_VX.X.X + in your current folder, where X.X.X is the version number, and the + executables will be in Argyll_VX.X.X/bin + sub-folder.
    +
    + Open a Terminal shell. This will be in + Applications->Utilities->Terminal (Dragging it to the dock is + a good idea to make it more accessible).
    +
    + You should configure your $PATH environment variable to give the + shell access to the executable from your command line environment + without having to spell out the whole path every time, by editing + your .profile file, which + will be in your $HOME folder. You can open a graphical editor on + this file by using the open command:
    +
    +   open $HOME/.profile
    +
    + or alternatively, use some other text editor that you are familiar + with.
    +
    + Add a line similar to the following line to your .profile file:
    +
    +   PATH=$PATH:/Applications/Argyll_VX.X.X/bin
    +
    + where "/Applications/Argyll_VX.X.X/bin" is the path to the folder + that contains the ArgyllCMS executables.
    + Save your changes and exit the editor.
    +
    + If you want further guidance in setting up and using a command line + environment, then please consult an appropriate tutorial, e.g. <ShellIntro>.
    +
    + The .tgz file also contains several useful reference files (such as + scanner chart recognition templates, sample illumination spectrum + etc.) in the ref sub-folder, as well as all the current + documentation in a doc sub-folder.
    +
    + For most devices there is nothing special to do. Plug in and go. + Some devices may not work without some extra help though:
    +

    X-Rite ColorMunki

    + Some version of X-Rite's ColorMunki drivers released between 2009 + and 2011 install an X-Rite daemon that runs as root and grabs the + device, preventing any other programs (such as Argyll) from opening + them. Latter versions seem to be more cooperative, and don't suffer + from this problem. There are three ways of working around this + problem:
    +
    + 1) Turn off the X-Rite service for the ColorMunki. See <http://www.xrite.com/product_overview.aspx?ID=1161&Action=support&SupportID=4980>.
    +
    + 2) Run all Argyll programs that need to access the instrument as + root. For instance:
    +
    +     sudo spotread
    +
    + and then you will be asked for the root password.
    + While these methods will work, they are inconvenient.
    +
    + 3) Alter the X-Rite drivers Daeomon so that it runs under your user + account.
    +
    + To do this you need to edit the script that controls the X-Rite + Daemon.
    +
    +     cd ~
    +     whoami
    +     cp + /Library/LaunchDaemons/com.xrite.device.colormunki.plist temp.plist
    +     open temp.plist
    +
    + and add one child below the root:
    +
        Item                             Type                    - Value           -
    -     UserName   + + + + + + + Value           +
    +     UserName                     string                   - myusername
    -
    - where "myusername" is your username shown by whoami, and save the - file. You then need to copy the modified file back:
    -
    -     sudo cp temp.plist - /Library/LaunchDaemons/com.xrite.device.colormunki.plist
    -
    - You will then need to restart the machine for this change to take - effect, or invoke the following commands:
    -
    -    sudo launchctl unload - /Library/LaunchDaemons/com.xrite.device.colormunki.plist
    -    sudo launchctl load - /Library/LaunchDaemons/com.xrite.device.colormunki.plist
    -
    - NOTE that after running - Argyll tools, you may have to turn the X-Rite service off then on - again, or disconnect and reconnect the instrument.
    -
    -

    X-Rite EyeOne Pro
    -

    - Some version of X-Rite's EyeOne Pro drivers drivers released between - 2009 and 2011 install an X-Rite daemon that runs as root and grabs - the device, preventing any other programs (such as Argyll) from - opening them. Latter versions seem to be more cooperative, and don't - suffer from this problem. There are three ways of working around - this problem:
    -
    - 1) Turn off the X-Rite service for the EyeOne Pro. See <http://www.xrite.com/product_overview.aspx?ID=1161&Action=support&SupportID=4980>.
    -
    - 2) Run all Argyll programs that need to access the instrument as - root. For instance:
    -
    -     sudo spotread
    -
    - and then you will be asked for the root password.
    - While these methods will work, they are inconvenient.
    -
    - 3) Alter the X-Rite drivers Daemon so that it runs under your user - account.
    -
    - To do this you need to edit the script that controls the X-Rite - Daemon.
    -
    -     cd ~
    -     whoami
    -     cp - /Library/LaunchDaemons/com.xrite.device.i1.plist temp.plist
    -     open temp.plist
    -
    - and add one child below the root:
    -
    + + + + + + + myusername
    +
    + where "myusername" is your username shown by whoami, and save the + file. You then need to copy the modified file back:
    +
    +     sudo cp temp.plist + /Library/LaunchDaemons/com.xrite.device.colormunki.plist
    +
    + You will then need to restart the machine for this change to take + effect, or invoke the following commands:
    +
    +    sudo launchctl unload + /Library/LaunchDaemons/com.xrite.device.colormunki.plist
    +    sudo launchctl load + /Library/LaunchDaemons/com.xrite.device.colormunki.plist
    +
    + NOTE that after running + Argyll tools, you may have to turn the X-Rite service off then on + again, or disconnect and reconnect the instrument.
    +
    +

    X-Rite EyeOne Pro
    +

    + Some version of X-Rite's EyeOne Pro drivers drivers released between + 2009 and 2011 install an X-Rite daemon that runs as root and grabs + the device, preventing any other programs (such as Argyll) from + opening them. Latter versions seem to be more cooperative, and don't + suffer from this problem. There are three ways of working around + this problem:
    +
    + 1) Turn off the X-Rite service for the EyeOne Pro. See <http://www.xrite.com/product_overview.aspx?ID=1161&Action=support&SupportID=4980>.
    +
    + 2) Run all Argyll programs that need to access the instrument as + root. For instance:
    +
    +     sudo spotread
    +
    + and then you will be asked for the root password.
    + While these methods will work, they are inconvenient.
    +
    + 3) Alter the X-Rite drivers Daemon so that it runs under your user + account.
    +
    + To do this you need to edit the script that controls the X-Rite + Daemon.
    +
    +     cd ~
    +     whoami
    +     cp + /Library/LaunchDaemons/com.xrite.device.i1.plist temp.plist
    +     open temp.plist
    +
    + and add one child below the root:
    +
        Item                             Type                    - Value           -
    -     UserName   + + + + + + + Value           +
    +     UserName                     string                   - myusername
    -
    - where "myusername" is your username shown by whoami, and save the - file. You then need to copy the modified file back:
    -
    -     sudo cp temp.plist - /Library/LaunchDaemons/com.xrite.device.i1.plist
    -
    - You will then need to restart the machine for this change to take - effect, or invoke the following commands:
    -
    -    sudo launchctl unload - /Library/LaunchDaemons/com.xrite.device.i1.plist
    -    sudo launchctl load - /Library/LaunchDaemons/com.xrite.device.i1.plist
    -
    - NOTE that after running - Argyll tools, you may have to turn the X-Rite service off then on - again, or disconnect and reconnect the instrument.
    -
    + + + + + + + myusername
    +
    + where "myusername" is your username shown by whoami, and save the + file. You then need to copy the modified file back:
    +
    +     sudo cp temp.plist + /Library/LaunchDaemons/com.xrite.device.i1.plist
    +
    + You will then need to restart the machine for this change to take + effect, or invoke the following commands:
    +
    +    sudo launchctl unload + /Library/LaunchDaemons/com.xrite.device.i1.plist
    +    sudo launchctl load + /Library/LaunchDaemons/com.xrite.device.i1.plist
    +
    + NOTE that after running + Argyll tools, you may have to turn the X-Rite service off then on + again, or disconnect and reconnect the instrument.
    +

    JETI specbos - 1201 and 1211
    -

    -
    - If you are using the JETI specbos 1211 and 1201, - then you may need to install the FTDI Virtual COM - Port Drivers (VCP), if they are not already on your system.
    -
    -

    HCFR Colorimeter

    - The default OS X class drivers will grab this device, preventing - Argyll from accessing it. To overcome this, you need to install a - codeless kernel extension if you wish to use the HCFR colorimeter, - that prevents this from happening. From the command line you need to - create a directory called Argyll.kext somewhere convenient, and then - place in it one file called Info.plist, containing the following:
    -
    -     ----------------- cut here ---------------------
    -    <?xml version="1.0" encoding="UTF-8"?>
    -    <!DOCTYPE plist PUBLIC "-//Apple Computer//DTD PLIST - 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
    -    <plist version="1.0">
    -    <dict>
    -        - <key>CFBundleDevelopmentRegion</key> - <string>English</string>
    -        - <key>CFBundleGetInfoString</key> <string>Libusb - USB device Shield</string>
    -        - <key>CFBundleIdentifier</key> - <string>com.libusb.USB_Shield</string>
    -        - <key>CFBundleInfoDictionaryVersion</key> - <string>6.0</string>
    -        <key>CFBundleName</key> - <string>Libusb USB device Shield</string>
    -        - <key>CFBundlePackageType</key> - <string>KEXT</string>
    -        <key>CFBundleSignature</key> - <string>????</string>
    -        <key>CFBundleVersion</key> - <string>6.0</string>
    -        - <key>IOKitPersonalities</key>
    -        <dict>
    -            - <key>HCFR</key>
    -            <dict>
    -                - <key>CFBundleIdentifier</key> - <string>com.apple.driver.AppleUSBComposite</string>
    -             -    <key>IOClass</key> - <string>AppleUSBComposite</string>
    -              -   <key>IOProviderClass</key> - <string>IOUSBDevice</string>
    -             -    <key>idVendor</key> - <integer>1243</integer>
    + + + + + + + 1201 and 1211 and Klein K10A
    + +
    + If you are using the JETI specbos 1211 and 1201, + or the Klein K10A then you may need to install the FTDI Virtual COM + Port Drivers (VCP), if they are not already on your system.
    +
    +

    HCFR Colorimeter

    + The default OS X class drivers will grab this device, preventing + Argyll from accessing it. To overcome this, you need to install a + codeless kernel extension if you wish to use the HCFR colorimeter, + that prevents this from happening. From the command line you need to + create a folder called Argyll.kext somewhere convenient, and then + place in it one file called Info.plist, containing the following:
    +
    +     ----------------- cut here ---------------------
    +    <?xml version="1.0" encoding="UTF-8"?>
    +    <!DOCTYPE plist PUBLIC "-//Apple Computer//DTD PLIST + 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
    +    <plist version="1.0">
    +    <dict>
    +        + <key>CFBundleDevelopmentRegion</key> + <string>English</string>
    +        + <key>CFBundleGetInfoString</key> <string>Libusb + USB device Shield</string>
    +        + <key>CFBundleIdentifier</key> + <string>com.libusb.USB_Shield</string>
    +        + <key>CFBundleInfoDictionaryVersion</key> + <string>6.0</string>
    +        <key>CFBundleName</key> + <string>Libusb USB device Shield</string>
    +        + <key>CFBundlePackageType</key> + <string>KEXT</string>
    +        <key>CFBundleSignature</key> + <string>????</string>
    +        <key>CFBundleVersion</key> + <string>6.0</string>
    +        + <key>IOKitPersonalities</key>
    +        <dict>
    +            + <key>HCFR</key>
    +            <dict>
    +                + <key>CFBundleIdentifier</key> + <string>com.apple.driver.AppleUSBComposite</string>
    +             +    <key>IOClass</key> + <string>AppleUSBComposite</string>
    +              +   <key>IOProviderClass</key> + <string>IOUSBDevice</string>
    +             +    <key>idVendor</key> + <integer>1243</integer>
                 -   <key>idProduct</key> - <integer>91</integer>
    -            - </dict>
    -        </dict>
    -        - <key>OSBundleCompatibleVersion</key> - <string>1.8</string>
    -        <key>OSBundleLibraries</key>
    -        <dict>
    -            - <key>com.apple.kernel.iokit</key> - <string>6.0</string>
    -        </dict>
    -    </dict>
    -    </plist>
    -     ----------------- cut here ---------------------
    -
    - (You can also copy this from the source installation in - usb/Argyll.kext)
    -
    - You then need to install it by using:
    -
    -   sudo cp -R Argyll.kext /System/Library/Extensions
    -
    - supplying the appropriate root password when prompted.
    - Reboot the system to activate the extension.
    -
    -


    -

    - - + + + + + + +   <key>idProduct</key> + <integer>91</integer>
    +            + </dict>
    +        </dict>
    +        + <key>OSBundleCompatibleVersion</key> + <string>1.8</string>
    +        <key>OSBundleLibraries</key>
    +        <dict>
    +            + <key>com.apple.kernel.iokit</key> + <string>6.0</string>
    +        </dict>
    +    </dict>
    +    </plist>
    +     ----------------- cut here ---------------------
    +
    + (You can also copy this from the source installation in + usb/Argyll.kext)
    +
    + You then need to install it by using:
    +
    +   sudo cp -R Argyll.kext /System/Library/Extensions
    +
    + supplying the appropriate root password when prompted.
    + Reboot the system to activate the extension.
    +
    +


    +

    + + diff --git a/doc/K10A.jpg b/doc/K10A.jpg new file mode 100644 index 0000000..1a93349 Binary files /dev/null and b/doc/K10A.jpg differ diff --git a/doc/Scenarios.html b/doc/Scenarios.html index e82a8a4..7b5899f 100644 --- a/doc/Scenarios.html +++ b/doc/Scenarios.html @@ -75,6 +75,11 @@ handled when calibration is being used

    Linking Profiles

    +

        Image dependent gamut + mapping using device links
    +

    +

        Soft Proofing Link
    +

    Transforming colorspaces of raster files

    Creating Video Calibration 3DLuts

    @@ -152,6 +157,17 @@ + + + + + + + + + + + @@ -219,6 +235,17 @@ + + + + + + + + + + + @@ -590,6 +617,17 @@ + + + + + + + + + + + @@ -649,6 +687,17 @@ + + + + + + + + + + + @@ -806,6 +855,17 @@ + + + + + + + + + + + @@ -873,37 +933,6 @@ - - - - HCT :
    -
    - HutchColor HCT
    -
    -
    - and Christophe - - - - - - - - - - - - - - - - - - - - @@ -917,6 +946,24 @@ href="http://www.christophe-metairie-photographie.com/eng%20digital%20target.htm + + HCT :
    +
    + HutchColor HCT
    +
    +
    + and Christophe + Métairie's Digital TargeT 003 and Christophe + Métairie's Digital Target - 4 :
    +
    + CMP_DT_003  CMP_Digital_Target-4
    +
    + and the LaserSoft @@ -928,9 +975,6 @@ href="http://www.christophe-metairie-photographie.com/eng%20digital%20target.htm - - Métairie's Digital TargeT 003 and Christophe @@ -976,35 +1020,20 @@ href="http://www.christophe-metairie-photographie.com/eng%20digital%20target.htm - Métairie's Digital Target - 3 :
    + Imaging DCPro Target:

    - CMP_DT_003  CMP_Digital_Target-3
    + LaserSoft DCPro + Target

    - and the LaserSoft - - - - - - - - - - - - - - - - - - - - - - + The Datacolor SpyderCheckr:
    +
    + Datacolor + SpyderCheckr
    +
    + One of the QPcard's:
    + QPcard @@ -1027,21 +1056,6 @@ href="http://www.christophe-metairie-photographie.com/eng%20digital%20target.htm - - Imaging DCPro Target:
    -
    - LaserSoft DCPro - Target
    -
    - The Datacolor SpyderCheckr:
    -
    - Datacolor - SpyderCheckr
    -
    - One of the QPcard's:
    - QPcard @@ -1069,6 +1083,9 @@ href="http://www.christophe-metairie-photographie.com/eng%20digital%20target.htm + + 201:            QPcard @@ -1080,9 +1097,6 @@ href="http://www.christophe-metairie-photographie.com/eng%20digital%20target.htm - - 201:            QPcard @@ -1234,6 +1248,17 @@ href="http://www.xrite.com/documents/apps/public/digital_colorchecker_sg_l_a_b.t + + + + + + + + + + + @@ -1289,8 +1314,8 @@ href="http://www.xrite.com/documents/apps/public/digital_colorchecker_sg_l_a_b.t file should be used, and the cie reference files come with the chart.

    - For the Christophe Métairie's Digital Target-3 chart with 570 - patches, the ref/CMP_Digital_Target-3.cht + For the Christophe Métairie's Digital Target-4 chart with 570 + patches, the ref/CMP_Digital_Target-4.cht file should be used, and the cie reference files come with the chart.

    @@ -1355,6 +1380,17 @@ href="http://www.xrite.com/documents/apps/public/digital_colorchecker_sg_l_a_b.t + + + + + + + + + + + @@ -1797,6 +1833,17 @@ href="http://www.xrite.com/documents/apps/public/digital_colorchecker_sg_l_a_b.t + + + + + + + + + + + @@ -1935,6 +1982,17 @@ then + + + + + + + + + + + @@ -1972,6 +2030,12 @@ then If you know what colorspace your originals are in, use that as the argument to -S.

    + If your viewing environment for the display and print doesn't match + the ones implied by the     -cmt and -dpp options, leave them out, and + evaluate what, if any appearance transformation is appropriate for + your environment at a later stage.
    +
    Make sure you check the delta E report at the end of the profile creation, to see if the sample data and profile is behaving reasonably. Depending on the type of device, and the consistency of @@ -2050,6 +2114,17 @@ then + + + + + + + + + + + @@ -2504,6 +2579,17 @@ chart, + + + + + + + + + + + @@ -2559,6 +2645,17 @@ an + + + + + + + + + + + @@ -2606,6 +2703,17 @@ an + + + + + + + + + + + @@ -2661,6 +2769,17 @@ a + + + + + + + + + + + @@ -2721,16 +2840,22 @@ a
    To apply color management and calibration to a raster image:

    -     cctiff Source2Destination.icm PrinterA_c.cal infile.tif - outfile.tif
    +     cctiff + Source.icm PrinterA.icm PrinterA_c.cal + infile.tif outfile.tif
    +
    or
    -     cctiff Source2Destination.icm PrinterA_c.cal infile.jpg - outfile.jpg

    +     cctiff + Source.icm PrinterA_c.icm + infile.tif outfile.tif
    +
    + [ Note that cctiff will also process JPEG raster images. ]

    Another useful tool is synthcal, that allows creating linear or synthetic calibration files for disabling @@ -2738,6 +2863,11 @@ a Similarly, fakeread also supports applying calibration curves and embedding them in the resulting .ti3 file
    +
    + If you want to create a pre-conditioning profile for use with targen -c, then use the PrinterA.icm + profile, NOT PrinterA_c.icm that has calibration curves + applied.

    How profile ink limits are handled when calibration is being used.

    Even though the profiling process is carried out on top of the @@ -2808,6 +2938,11 @@ a DestinationProfile.icm Source2Destination.icm

    + [ If your viewing environment for the display and print doesn't + match the ones implied by the -cmt and + -dpp options, leave them out, and + evaluate what, if any appearance transformation is appropriate for + your environment at a later stage. ]

    In inverse output table gamut mapping mode, the pre-computed intent mappings inside the profiles are not used, @@ -2848,6 +2983,53 @@ a for the type of device the profile represents, and the conditions under which it will be viewed.

    +

    Image dependent gamut mapping using device + links
    +

    + When images are stored in large gamut colorspaces (such as. L*a*b* + or ProPhoto, etc.), then using the colorspace gamut as the source + gamut for gamut mapping is generally a bad idea, as it leads to + overly compressed and dull images. The correct approach is to use a + source gamut that represents the gamut of the images themselves. + This can be created using tiffgamut, and an example workflow is as + follows:
    +
    + tiffgamut -f80 -pj -cmt ProPhoto.icm + image.tif
    +
    + collink -v + -qh -G image.gam -ip + -cmt -dpp + ProPhoto.icm RGBDestinationProfile.icm + Source2Destination.icm
    +
    + cctiff Source2Destination.icm + image.tif printfile.tif
    +
    + The printfile.tif is then send to the printer without color + management, (i.e. in the same way the printer characterization test + chart was printed), since it is in the printers native colorspace.
    +
    + You can adjust how conservatively the image gamut is preserved using + the tiffgamut -f parameter. Omitting it or using a larger value (up + to 100) preserves the color gradations of even the lesser used + colors, at the cost of compressing the gamut more.
    + Using a smaller value will preserve the saturation of the most + popular colors, at the cost of not preserving the color gradations + of less popular colors.
    +
    + You can create a gamut that covers a set of source images by + providing more than one image file name to tiffgamut. This may be + more efficient for a group of related images, and ensures that + colors are transformed in exactly the same way for all of the + images.
    +
    + The arguments to collink should be appropriate for the output device + type - see the collink examples in the above section.

    Soft Proofing Link

    Often it is desirable to get an idea what a particular devices output will look like using a different device. Typically this might @@ -2872,6 +3054,11 @@ a the viewing conditions and assumes adaptation to the differences in the luminence range, but otherwise not attempting to compress or change the gamut.
    +
    + If your viewing environment for the display and print doesn't match + the ones implied by the -cpp and -dmt options, then either leave them out + or substitute values that do match your environment.
     

    Transforming colorspaces of raster files

    @@ -2938,16 +3125,31 @@ a Argyll's normal test patch display will be used by default, as long as any video encoding range considerations are dealt with (see - Signal encoding below). An alternative when working with MadVR V - 0.86.9 or latter, is to use the madTPG to display the patches in - which case the MadVR video encoding range setting will operate. This - can give some quality benefits due to MadVR's use of dithering. To - display patches using MadVR rather than Argyll, start madTPG and - then use the option "-d madvr" in dispcal, dispread and dispwin. - Leave the MadTPG "VideoLUT" and "3dluts" buttons in their - default  (enabled) state, as the various tools will - automatically take care of disabling the 3dLut and/or calibration - curves as needed.
    + Signal encoding below).
    +
    + An alternative when working with MadVR V 0.86.9 or latter, is to use + the madTPG to display the patches in which case the MadVR video + encoding range setting will operate. This can give some quality + benefits due to MadVR's use of dithering. To display patches using + MadVR rather than Argyll, start madTPG and then use the option "-d + + + + madvr" in dispcal, dispread and dispwin. Leave the MadTPG + "VideoLUT" and "3dluts" buttons in their default  (enabled) + state, as the various tools will automatically take care of + disabling the 3dLut and/or calibration curves as needed.
    +
    + Another option is to use a ChromeCast + using the option "-dcc" in dispcal, dispread and dispwin. + Note that the ChromeCast as a test patch source is probably the + least accurate of your choices, since it up-samples the test + patch and transforms from RGB to YCC and back, but should be + accurate within ± 1 bit. You may have to modify any firewall to + permit port 8081 to be accessed on your machine if it falls back to + the Default receiver (see installation + instructions for your platform).
    2) White point calibration & neutral axis calibration.
    A Device Link is capable of embodying all aspects of the calibration, including correcting the white point and neutral axis @@ -2982,6 +3184,17 @@ a package could be used, or ArgyllCMS dispcal's + + + + + + + + + + + interactive adjustment mode can be used to set the white point. Note that while adjusting the neutral axis for neutrality may @@ -3004,7 +3217,18 @@ a and 3dLut will set the final response. If this approach is taken, then the resulting calibration file should be provided to dispread as the -k parameter or -K parameter.  See also below Choice + href="dispcal.html#K">-K parameter.  See also below Choice + + + + + + + + + + + of where to apply display per channel calibration curves.
  • Choose one of the Absolute Colorimetric intents in collink (ie. -i aw). This greatly reduces flexibility, and may not be @@ -3087,8 +3311,12 @@ a scale full range RGB values to Video levels for the TV. If the latter is not possible, then use the -E options on dispcal and dispread. (See Signal encoding bellow for more details on - this). Don't use the -E options on dispcal and dispread if you are - using MadVR to display test patches using the "-d madvr" option.
    + this). It may also improve the accuracy of the display profile if + you use the dispread -Z option to + quantize the test values to the precision of the display + system.  Don't use the -E options on dispcal and dispread, nor + the -Z option on dispread if you are using MadVR to display test + patches using the "-d madvr" option.

    Once the profile has been created, it is possible to then use the resulting Device Link/3DLut with signal encoding other than full @@ -3206,9 +3434,9 @@ a near black will get clipped to the display black point, loosing shadow detail. To avoid this, some sort of black point mapping is usually desirable. There are two mechanisms available in collink: - a) BT.1886 black point mapping, or b) using one of the smart gamut - mapping intents that does black point mapping (e.g. la, p, pa, ms - or s).
    + a) Custom EOTF with input and/or output black point mapping, or b) + using one of the smart gamut mapping intents that does black point + mapping (e.g. la, p, pa, ms or s).

    8) Viewing conditions adjustment and gamut mapping

    @@ -3223,30 +3451,56 @@ a practice that much video material is adjusted to look as intended when displayed on a reference monitor having a display gamma of somewhere between 2.2 and 2.4, viewed in a dim viewing - environment. The modern standard covering the display transfer - curve is BT.1886, - which defines a pure power 2.4 curve with a black point offset. So - another means of making the viewing adjustment is to apply the - BT.1886-like response to Rec709 encoded material. Collink supports - this using the -I b, and allows some - control over the degree of viewing conditions adjustment by - overriding the BT.1886 gamma  using the -I b:g.g parameter. This is the recommended - approach to start with, since it gives good results with a single - parameter.
    + which defines a pure power 2.4 curve with an input offset and + scale applied to account for the black point offset while + retaining dark shadow tonality. So another means of making the + viewing adjustment is to use the BT.1886-like EOTF for Rec709 + encoded material. Collink supports this using the -I b, and allows some control over the + degree of viewing conditions adjustment by overriding the BT.1886 + gamma  using the -I b:g.g + parameter. This is the recommended approach to start with, + since it gives good results with a single parameter.

    +

    The addition of a second optional parameter -I b:p.p:g.g + allows control over the degree of black point offset accounted for + as an output offset, as opposed to input offset Once the effective + gamma value has been chosen to suite the viewing conditions and + set the overall contrast for mid greys, increasing the proportion + of black offset accounted for in the output of the curve is a way + of reducing the deep shadow detail, if it is being overly + emphasized.

    An alternate approach to making this adjustment is to take advantage of the viewing conditions adjustment using the CIECAM02 model available in collink. Some control over the degree of viewing conditions adjustment is possible by varying the viewing condition parameters.

    A third alternative is to combine the two approaches. The source - is defined as Rec709 rendered to a model BT.1886 display in dim - viewing conditions, and then CIECAM02 is used to adjust for the - actual display viewing conditions. Once again, control over the - degree of viewing conditions adjustment is possible by varying the - viewing condition parameters.

    + is defined as Rec709 primaries with a BT.1886-like EOTF display in + dim viewing conditions, and then CIECAM02 is used to adjust for + the actual display viewing conditions. Once again, control over + the degree of viewing conditions adjustment is possible by varying + the viewing condition parameters
    +

    +


    +

    +

    9) Correcting for any black point inaccuracy in the display + profile
    +

    +

    Some video display devices have particularly good black points, + and any slight raising of the black due to innacuracies in the + display profile near black can be objectionable. As well as using + the targen -V flag to improve + accuracy near black during profiling, if the display is known to + be well behaved (ie. that it's darkest black is actually at RGB + value 0,0,0), then the collink -b + flag can be used, to force the source RGB 0,0,0 to map to the + display 0,0,0.
    +

    Putting it all together:
    In this example we choose to create a display calibration first using dispcal, and create a simple matrix profile as well:
    @@ -3282,7 +3536,7 @@ a
    The display can then be measured:

    -   dispread -v -k TV.cal TV
    +   dispread -v -k -Z8 TV.cal TV

    or using madTPG:

    @@ -3312,14 +3566,14 @@ a BT.1886 black point and viewing conditions adjustment, say one of the following:

    -   collink -v -Ib:2.4 -G -ir Rec709.icm TV.icm +   collink -v -Ib:2.4 -b -G -ir Rec709.icm TV.icm HD.icm   # dark conditions
    -       collink -v -Ib     -G -ir +   collink -v -Ib     -b -G -ir Rec709.icm TV.icm HD.icm   # dim conditions - good default
    -       collink -v -Ib:2.1 -G -ir Rec709.icm TV.icm +   collink -v -Ib:2.1 -b -G -ir Rec709.icm TV.icm HD.icm   # mid to dim conditions
    -       collink -v -Ib:2.0 -G -ir Rec709.icm TV.icm +   collink -v -Ib:2.0 -b -G -ir Rec709.icm TV.icm HD.icm   # mid to light conditions

    or you could do it using pure CIECAM02 adjustment and a black point @@ -3400,7 +3654,7 @@ a
    For PC use, where the encoding is full range RGB:

    -   collink -v -3e -Ib -G -ir -a TV.cal Rec709.icm TV.icm +   collink -v -3e -Ib -b -G -ir -a TV.cal Rec709.icm TV.icm HD.icm

    For correct operation both the 3DLut HD.txt and the per channel @@ -3416,8 +3670,8 @@ a will probably be processing TV RGB levels, or YCbCr encoded signals that it converts to/from RGB internally, so

    -   collink -v -3e -et -Et -Ib -G -ir -a TV.cal Rec709.icm - TV.icm HD.icm
    +   collink -v -3e -et -Et -Ib -b -G -ir -a TV.cal + Rec709.icm TV.icm HD.icm

    in this case just the HD.txt file needs installing on the eeColor, but make sure that the original linear "first1*.txt files are @@ -3441,10 +3695,21 @@ a normal desktop and MadVR, then it is recommended that you install the display ICC profile and use the -H option:

    -     collink -v -3m -et -Et -Ib -G -ir -H TV.cal - Rec709.icm TV.icm HD.icm
    +     collink -v -3m -et -Et -Ib -b -G -ir -H + TV.cal Rec709.icm TV.icm HD.icm
    -         collink -v -3m -et -Et -Ib -G -ir -H +     collink -v -3m -et -Et -Ib -b -G -ir -H + + + + + + + + + + + @@ -3458,7 +3723,18 @@ a TV.cal EBU3213_PAL.icm TV.icm SD_PAL.icm
    -         collink -v -3m -et -Et -Ib -G -ir -H +     collink -v -3m -et -Et -Ib -b -G -ir -H + + + + + + + + + + + @@ -3476,10 +3752,21 @@ a curves using dithering, and allow it to set the graphics card to linear by using the -a option:

    -     collink -v -3m -et -Et -Ib -G -ir -a TV.cal - Rec709.icm TV.icm HD.icm
    +     collink -v -3m -et -Et -Ib -b -G -ir -a + TV.cal Rec709.icm TV.icm HD.icm
    -         collink -v -3m -et -Et -Ib -G -ir -a +     collink -v -3m -et -Et -Ib -b -G -ir -a + + + + + + + + + + + @@ -3493,7 +3780,18 @@ a TV.cal EBU3213_PAL.icm TV.icm SD_PAL.icm
    -         collink -v -3m -et -Et -Ib -G -ir -a +     collink -v -3m -et -Et -Ib -b -G -ir -a + + + + + + + + + + + @@ -3544,11 +3842,12 @@ a

      targen -v -d3 -e1 -m6 -f0 -W verify

    We make sure there is at least one white patch usin g -e1, a 20% - increment grid using -m6, no full spread patches, and create a - VRML 3d visualization of the point set using the -W flag. It is - good to take a look at the verifyd.wrl file using a VRML viewer. - You may want to create several test sets that look at particular - aspects, ie. neutral axis response, pure colorant responses, etc.
    + increment grid using -m6, no full spread patches, and create an + X3DOM 3d visualization of the point set using the -W flag. It is + good to take a look at the verifyd.x3d.html file using a Web + browser. You may want to create several test sets that look at + particular aspects, ie. neutral axis response, pure colorant + responses, etc.

    Next we create a reference file by simulating the expected response of the perfect video display system. Assuming the collink @@ -3556,12 +3855,12 @@ a would:

      copy verify.ti1 ref.ti1
    -   fakeread -v -b TV.icm Rec709.icm ref
    +   fakeread -v -b -Z8 TV.icm Rec709.icm ref

    You should adjust the parameters as necessary, so that the reference matches the link options. For instance, if your link - options included "-I b:2.15" then the equivalent fakeread option - "-b 2.15:TV.icm" should be used, etc.
    + options included "-I b:0.2:2.15" then the equivalent fakeread + option "-b 0.2:2.15:TV.icm" should be used, etc.

    A sanity check we can make at this point is to see what the @@ -3569,12 +3868,13 @@ a simulating the reproduction of this test set:

      copy verify.ti1 checkA.ti1
    -   fakeread -v -et -p HD.icm -Et TV.icm checkA
    +   fakeread -v -et -Z8 -p HD.icm -Et TV.icm checkA

    If you used collink -a, then the calibration incorporated in the device link needs to be undone to match what the display profile expects:

    -

      fakeread -v -et -p HD.icm -Et -K TV.cal TV.icm checkA

    +

      fakeread -v -et -Z8 -p HD.icm -Et -K TV.cal TV.icm + checkA

    and then you can verify:

      colverify -v -n -w -x ref.ti3 checkA.ti3
    @@ -3590,10 +3890,10 @@ a

      verify -v -N -w -x ref.ti3 checkA.ti3

    This will give a numerical report of the delta E's, and also - generate a VRML plot of the errors in L*a*b* space. The important - thing is to take a look at the checkA.wrl file, to see if gamut - clipping is occurring - this is the case if the large error - vectors are on the sides or top of the gamut. Note that the + generate an X3DOM plot of the errors in L*a*b* space. The + important thing is to take a look at the checkA.x3d.html file, to + see if gamut clipping is occurring - this is the case if the large + error vectors are on the sides or top of the gamut. Note that the perfect cube device space values become a rather distorted cube like shape in the perceptual L*a*b* space. If the vectors are small in the bulk of the space, then this indicates that the link @@ -3612,22 +3912,23 @@ a

      iccgamut -ff -ia Rec709
       iccgamut -ff -ia TV.icm
    -       viewgam -i Rec709.gam TV.gam gamuts.wrl
    +       viewgam -i Rec709.gam TV.gam gamuts

    -

    and look at the gamuts.wrl file, as well as taking notice of % of - the video volume that the display intersects. The VRML solid +

    and look at the gamuts.x3d.html file, as well as taking notice of + % of the video volume that the display intersects. The X3DOM solid volume will be the video gamut, while the wire frame is the display gamut. If you are not targetting D65 with your display, you should use iccgamut -ir instead of -ia, so as to align the white points.

    -

    The main check is to actually measure the display response and - compare it against the reference. Make sure the display is setup - as you would for video playback and then use dispread:
    +

    The main verification check is to actually measure the display + response and compare it against the reference. Make sure the + display is setup as you would for video playback and then use + dispread:

      copy verify.ti1 checkB.ti1
    -       dispread -v checkB
    +       dispread -v -Z8 checkB

    You would add any other options needed (such as -y etc.) to set your instrument up properly. If you are using madTPG, then diff --git a/doc/VideoEOTFs.html b/doc/VideoEOTFs.html new file mode 100644 index 0000000..526477c --- /dev/null +++ b/doc/VideoEOTFs.html @@ -0,0 +1,47 @@ + + + + Video Electro Optical Transfer Functions + + + +

    Video Electro-Optical Transfer Functions
    +

    +

    Introduction

    + hgskajghjsahgjhgas
    +
    +

    Encoding verses decoding & Viewing conditions
    +

    + kjshkjhsakdhakj
    +
    +

    Log-Log plots

    + jhjkhkjhkjhkh
    +
    + perceptual errors -  DE2000 1 DE lines plotted on a log-log + graph
    +

    "Pure Gamma" curves
    +

    + They don't exist, unless your display has a perfect, zero black. But + even if it does have a perfect black, the black as seen by your eye + won't be perfect unless you are in a pitch black room and the + display is all black, because any stray light in the room or from + other non-black elements on the display will dilute the perfect + black due to glare.
    +
    + ksjdhiksahdkajsl
    +
    +

    Output Offset Black

    +

    Input Offset Black
    +

    + sdjhkashdkjas
    +
    + BT.1886
    +
    + hjsdjhgsajgda
    +
    +
    +
    +
    + + diff --git a/doc/afiles b/doc/afiles index e58ab5a..db6632f 100644 --- a/doc/afiles +++ b/doc/afiles @@ -22,6 +22,7 @@ Environment.html Scenarios.html FWA.html FWA_measure.jpg +VideoEOTFs.html instruments.html ArgyllFlow.jpg ArgyllFlowThumb.jpg @@ -53,13 +54,16 @@ Chroma4.jpg ColorMunki.jpg ColorMunkiCreate.jpg i1pro2.jpg +K10A.jpg iccgamutmapping.html +3dformat.html gamutmapping1.jpg monitorcontrols.html gamma.html calvschar.html WideGamutColmters.html CrushedDisplyBlacks.html +ArgyllCMS_arts_tag.html i1proDriver.html i1proDriver.xls i1proHiRes.html @@ -136,7 +140,7 @@ SG_footer.txt i1scan14.jpg HCT.jpg CMP_DT_003.jpg -CMP_Digital_Target-3.jpg +CMP_Digital_Target-4.jpg colorchecker.jpg SpyderChecker.jpg LSDC.jpg diff --git a/doc/average.html b/doc/average.html index 31adf9b..231df92 100644 --- a/doc/average.html +++ b/doc/average.html @@ -1,43 +1,53 @@ - + - - average - - - - -

    spectro/average

    -

    Summary

    -Average or merge two or more .ti3 -measurement -files.
    -

    Usage

    - -usage: average [-options] input1.ti3 -input2.ti3 ... output.ti3
    - -v              -Verbose
    - -m              -Merge rather than average
    - input1.ti3      -First input file
    - input2.ti3      -Second input file
    - ...             -etc.
    - output.ti3      -Resulting averaged or merged output file
    -
    -
    -All keywords and other table data will be taken from the first input -file. By default the input files are averaged, but they can be merged -by using the -m flag.
    -
    -The fields must be the same and in the same order. For averaging, the -device values must be the same and in the same order.
    -
    - + + average + + + + +

    spectro/average

    +

    Summary

    + Average or merge two or more .ti3 + measurement + files.
    + If only one input file is provided, all the patches with the same + device values will be average together.
    +

    Usage

    + + usage: average [-options] + input1.ti3 + input2.ti3 ... output.ti3
    +  -v              + Verbose
    +  -m              +Merge + rather than average
    +  input1.ti3      +First + input file
    +  input2.ti3      +Second + input file
    +  ...             + etc.
    +  output.ti3      +Resulting + averaged or merged output file
    +
    +
    + All keywords and other table data will be taken from the first input + file. By default the input files are averaged, but they can be + merged + by using the -m flag.
    +
    + The fields must be the same and in the same order. For averaging, + the + device values must be the same and in the same order.
    +
    + diff --git a/doc/ccxxmake.html b/doc/ccxxmake.html index 8ef31b7..f83afc8 100644 --- a/doc/ccxxmake.html +++ b/doc/ccxxmake.html @@ -3,7 +3,7 @@ ccxxmake + charset=windows-1252"> @@ -41,8 +41,7 @@ subsequent measurements on that Display using such Colorimeters, by using it with the dispcal, dispread and spotread - -X option, or it can be installed, and + -X option, or it can be installed, and will then appear in the available display type selection (-y option).

    @@ -53,7 +52,7 @@ style="font-weight: bold;">ccmx (Colorimeter Correction Matrix) files.

    Usage Summary

    - ccxxmake [-options] + ccxxmake -t dtech [-options] correction.ccmx
     -v              @@ -71,6 +70,9 @@ + + +       Verbose mode
      -S                                         Create @@ -91,6 +93,9 @@ rather + + + than CCMX
      -f file1.ti3[,file2.ti3]                @@ -114,6 +119,9 @@ two + + + .ti3 files rather than measure.
     -display @@ -132,6 +140,9 @@ two + + + displayname  [X11 only] Choose X11 display name

     -d @@ -180,6 +194,9 @@ m + + + n                  Choose the @@ -203,6 +220,9 @@ list + + + (default 1)
     -dweb[:port]          @@ -222,6 +242,9 @@ list + + + Display via a web server at port (default 8080)
    @@ -236,31 +259,23 @@ list - [MSWin] Display via MadVR Video Renderer
    -  -p                    - - - - + [MSWin] Display via MadVR Video Renderer
    +  -dcc[:n]              + Display via n'th ChromeCast (default 1, ? for list)
    +  -p                    - Use telephoto mode (ie. for a projector) (if available)
    -   -y X -                -  @@ -273,13 +288,14 @@ list + Use telephoto mode (ie. for a projector) (if available)
    +   -y X +                +  - Display type - instrument specific list to choose from. (CCMX)
    -  -P @@ -295,8 +311,13 @@ list - ho,vo,ss[,vs]      Position test - window and scale it
    + Display type - instrument specific list to choose from.     + (CCMX)
    +      -z disptype           + Different display type for spectrometer (see -y)
    +      -P ho,vo,ss[,vs]      + Position test window and scale it
                           ho,vi: 0.0 @@ -320,6 +341,9 @@ center, + + + 1.0 = right/bottom etc.
                           ss: @@ -344,6 +368,9 @@ normal, + + + 2.0 = double etc.
                           @@ -355,6 +382,9 @@ normal, + + + ss,vs: = optional horizontal, vertical scale.
     
       -N                    @@ -420,6 +456,9 @@ on + + + Disable initial calibration of instrument if possible
     
    @@ -459,6 +501,9 @@ on + + + "command"          Invoke shell "command" each time a color is set
     -o @@ -491,6 +536,9 @@ sequence + + + combination steps (default 3)
         -W @@ -509,6 +557,9 @@ sequence + + + n|h|x              Override serial @@ -532,6 +583,9 @@ n + + + none, h = HW, x = Xon/Xoff
     -D [level] @@ -558,31 +612,226 @@ overall - escription
    + + + + description
     -I "displayname"      Set display make and model - description
    -      -T + description + (optional)
    +      -t + + + dtech +              + Set display technology type
    +     + c                   + + + CRT
    +     + m                   + + + Plasma
    +     + l                   + + + LCD
    +     + 1                   + + + LCD CCFL
    +     + 2               + + +         LCD + CCFL IPS
    +     + 3               + + +         LCD + CCFL VPA
    +     + 4               + + +         LCD + CCFL TFT
    +     + L               + + +         LCD + CCFL Wide Gamut
    +     + 5               + + +         LCD + CCFL Wide Gamut IPS
    +     + 6               + + +         LCD + CCFL Wide Gamut VPA
    +     + 7               + + +         LCD + CCFL Wide Gamut TFT
    +     + e               + + +         LCD + White LED
    +     + 8               + + +         LCD + White LED IPS
    +     + 9               + + +         LCD + White LED VPA
    +     + a               + +         LCD + White LED TFT
    +     + b               +         LCD + RGB LED
    +     + b               +         LCD + RGB LED IPS
    +     + c               +         LCD + RGB LED VPA
    +     + d               +         LCD + RGB LED TFT
    +     + h               +         LCD + RG Phosphor
    +     + e               +         LCD + RG Phosphor IPS
    +     + f               + + +         LCD + RG Phosphor VPA
    +     + g               + + +         LCD + RG Phosphor TFT
    +     + o               + + +         LED + OLED
    +     + a               + + +         LED + AMOLED
    +     + p               + + +         DLP + Projector
    +     + h               + + +         DLP + Projector RGB Filter Wheel
    +     + i               + + +         DPL + Projector RGBW Filter Wheel
    +     + j               + + +         DLP + Projector RGBCMY Filter Wheel
    +     + u               + + +         Unknown
    +      -U c                  + - "displaytech"          Set display technology description - (ie. CRT, LCD etc.)
    -  -U c                  @@ -601,9 +850,15 @@ overall + + +      Override refresh, non-refresh display mode
     -Y R:rate             + + + Override measured refresh rate with rate Hz
     -YA . Some experimentation may be needed using dispwin on such systems, to discover what screen has access to the VideoLUT hardware, and which screens the @@ -726,7 +984,9 @@ overall URL will be printed once the server is started, or you could run ipconfig (MSWin) or /sbin/ifconfig (Linux or OS X) - and identify an internet address for your machine that way.
    + and identify an internet address for your machine that way. You may + have to modify any firewall to permit port 8080 to be accessed on + your machine.

    -dmadvr [MSWin only] causes test patches to be displayed using the MadVR @@ -735,6 +995,14 @@ overall rendering does not need or support VideoLUT access. Test patch colors will be processed by the MadVR 3dLut.

    + -dcc or -dcc:no + causes test patches to be displayed using and available ChromeCast to + your TV. Use -dcc:? to display a list of ChromeCasts on your + local network. You may have to modify any firewall to permit port + 8081 to be accessed on your machine if it falls back to the Default + receiver.
    +
    The -p flag allows measuring in telephoto mode, using instruments that support this mode, e.g. the ColorMunki. Telephoto mode is one for taking @@ -767,6 +1035,12 @@ overall Installed CCMX files will automatically select the appropriate base type.

    + The -z flag allows setting a different + Display Type for the reference spectral instrument, such as refresh + or non-refresh type, if it supports it. You may have to use this if + you are setting a specific base type for the colorimeter using -y, + and the spectrometer doesn't have this display type.
    +
    The -P parameter allows you to position and size the test patch window. By default it is places in the center of the screen, and sized @@ -829,6 +1103,9 @@ overall + + + of particular instruments for more details. This may give better accuracy for display measurements.

    @@ -895,32 +1172,26 @@ overall included in the parameter, and not mistaken for the start of another flag, or as a final command line parameter.

    - The -I parameter allows setting of the - display description string in the resulting The -I parameter allows optional setting of + the display description string in the resulting ccmx/ccss file. Since the default display description is probably very generic, it is highly recommended that a - description of the make and model of the display be provided here, - or set a display technology description using -T (see below). The default or - given display description will be printed before the menu. With most - command line shells, it will be necessary to enclose the parameter - with double quotes, so that spaces and other special characters are - included in the parameter, and not mistaken for the start of another - flag, or as a final command line parameters.
    + description of the make and model of the display be provided here. + The default or given display description will be printed before the + menu. With most command line shells, it will be necessary to enclose + the parameter with double quotes, so that spaces and other special + characters are included in the parameter, and not mistaken for the + start of another flag, or as a final command line parameters.

    - The -T parameter allows setting of the - display technology description string in the resulting ccmx/ccss file. The - applicability of the calibration mainly depends on the technology - type of the display, so a description of the technology (ie. "CRT", - "LCD", "LCD + backlight type + LCD type",  etc.) is highly recommended, because it - can make the calibration more widely usable. With most command line - shells, it will be necessary to enclose the parameter with double - quotes, so that spaces and other special characters are included in - the parameter, and not mistaken for the start of another flag, or as - a final command line parameters.
    + The -t parameter allows setting of the + display technology type from the available list. You can get a usage + that includes the list using "ccxxmake -??". This is a required + parameter, since it conveys information about the refresh type and + settling time of the display. If the specific details of the display + are not known (i.e. backlight type, pannel type etc.), then choose + the next most generic type. If none of these are applicable, choose + "Unknown".

    The -U parameter allows setting of the user interface selection character this display type can be selected by, @@ -939,13 +1210,15 @@ overall + + + -Y n options overrides the refresh display mode set by the -y display type - selection, with -Y r - forcing refresh display mode, and -Y n forcing a non-refresh - display mode. Not all instruments support a display measurement - refresh mode, or the ability to override the mode set by the display - type selection.
    + href="spotread.html#y">-y display type selection, with -Y r forcing refresh display mode, + and -Y n forcing a non-refresh display mode. Not all + instruments support a display measurement refresh mode, or the + ability to override the mode set by the display type selection.

    The -Y R:rate options overrides calibration of the instrument refresh rate. This diff --git a/doc/collink.html b/doc/collink.html index 778b682..edd58b1 100644 --- a/doc/collink.html +++ b/doc/collink.html @@ -3,7 +3,7 @@ collink + charset=windows-1252"> @@ -41,6 +41,15 @@ + + + + + + + + + @@ -95,6 +104,15 @@ existing + + + + + + + + + @@ -133,6 +151,15 @@ clut + + + + + + + + + @@ -165,6 +192,15 @@ preserve + + + + + + + + + @@ -222,6 +258,15 @@ Include + + + + + + + + + @@ -242,6 +287,15 @@ Include  -H file.cal        + + + + + + + + + Append calibration curves to 3dlut
           -w [J,a,b]     Use forced - whitepoint hack [optional color to map the white to]
    -   +  -b             + + + + + + + Use RGB->RGB forced black point hack
    +  -c viewcond    set source viewing conditions for CIECAM02,
    -           + + + + + + + + + + c = transparency (default average)
    +           w:X:Y:Z       Adapted @@ -1007,6 +1267,15 @@ Adapted + + + + + + + + + @@ -1038,6 +1307,15 @@ Adapted + + + + + + + + + @@ -1068,6 +1346,15 @@ Adaptatation + + + + + + + + + @@ -1100,6 +1387,15 @@ Background + + + + + + + + + @@ -1135,6 +1431,15 @@ light + + + + + + + + + @@ -1162,6 +1467,15 @@ light + + + + + + + + + @@ -1180,6 +1494,15 @@ light + + + + + + + + + @@ -1207,6 +1530,15 @@ source + + + + + + + + + @@ -1240,6 +1572,15 @@ source + + + + + + + + + @@ -1280,6 +1621,15 @@ t + + + + + + + + + @@ -1311,6 +1661,15 @@ z + + + + + + + + + @@ -1345,6 +1704,15 @@ p + + + + + + + + + @@ -1380,6 +1748,15 @@ q + + + + + + + + + @@ -1418,6 +1795,15 @@ destination + + + + + + + + + @@ -1451,6 +1837,15 @@ destination + + + + + + + + + @@ -1474,6 +1869,15 @@ destination + + + + + + + + + @@ -1497,6 +1901,15 @@ destination + + + + + + + + + @@ -1517,9 +1930,17 @@ destination + + + + + + + + + MadVR .3dlut   file
    -  -I b               +  -I B               @@ -1527,6 +1948,23 @@ destination + Use BT.1886 source EOTF with technical gamma 2.4
    +      -I b:g.g +           Use + BT.1886-like source EOTF with effective gamma g.g
    +      -I b:p.p:g.g +       Use effective gamma g.g source EOTF + with p.p prop. output black point offset
    +  -I + g:g.g +           Use + effective gamma g.g source EOTF with all output black + point offset
    +      -e flag            @@ -1540,10 +1978,6 @@ destination - Apply BT.1886-like mapping with effective gamma 2.2 to input
    -  -I - b:g.g           @@ -1557,13 +1991,11 @@ destination - Apply BT.1886-like mapping with effective gamma g.g to - input
    -      -I B -               + Video encode input as:
    +  -E flag            @@ -1574,9 +2006,6 @@ destination - Apply BT.1886 mapping with technical gamma 2.4 to input
    -  -I B:g.g           @@ -1590,14 +2019,17 @@ destination - Apply BT.1886-like mapping with technical gamma g.g to input
    -      -e flag            + Video encode output as:
    +      + n                @@ -1612,12 +2044,13 @@ destination - Video encode input as:
    -  -E flag            + normal RGB 0..1 levels (default)
    +      + t                @@ -1634,11 +2067,15 @@ destination - Video encode output as:
    -      - n                + + + RGB (16-235)/255 "TV" levels
    +      + T +                @@ -1648,9 +2085,6 @@ destination - normal RGB 0..1 levels (default)
    -      - t                @@ -1660,7 +2094,7 @@ destination - RGB (16-235)/255 "TV" levels
    + RGB (16-235)/255 "TV" levels, clip WTW [Input Only]
         6                @@ -1672,6 +2106,15 @@ destination + + + + + + + + + Rec601 YCbCr SD (16-235,240)/255 "TV" levels
         7                @@ -1684,6 +2127,15 @@ destination + + + + + + + + + Rec709 1125/60Hz YCbCr HD (16-235,240)/255 "TV" levels
         5                @@ -1696,6 +2148,15 @@ destination + + + + + + + + + Rec709 1250/50Hz YCbCr HD (16-235,240)/255 "TV" levels
         2                @@ -1708,6 +2169,15 @@ destination + + + + + + + + + Rec2020 YCbCr UHD (16-235,240)/255 "TV" levels
         C                @@ -1720,6 +2190,15 @@ destination + + + + + + + + + Rec2020 Constant Luminance YCbCr UHD (16-235,240)/255 "TV" levels
         @@ -1733,6 +2212,15 @@ destination + + + + + + + + + xvYCC Rec601 YCbCr Rec709 Prims. SD (16-235,240)/255 "TV" levels
         @@ -1746,6 +2234,15 @@ destination + + + + + + + + + xvYCC Rec709 YCbCr Rec709 Prims. HD (16-235,240)/255 "TV" levels
          
    + + + + + + + + + + gammap_p.x3d.html and gammap_s.x3d.html diagostics
      tiffgamut tool. More details about the gamut mapping, inverse AtoB mode.

    - The gamut provided to the -g - or -G flag should be in the - same colorspace that collink - is using internally to connect the two profiles. For all intents - except the last one (no. 7), - - - - - - - - - - - - - - - - - + The gamut provided to the -g or -G flag should be in the same colorspace that collink is using internally to + connect the two profiles. For all intents except the last one (no. 7), the space should be Jab + appearance space, with the viewing conditions generally being those + of the source profile viewing conditions. The source profile will + normally be the one used to create a source image gamut using tiffgamut.
    +  
    + Simple mode gamut mapping options:
    +
    +       -i in_intent  +  +  @@ -2139,16 +2675,6 @@ ICC - the space should be Jab appearance space, with the viewing - conditions generally being those of the source profile viewing - conditions. The source profile will normally be the one used to - create a source image gamut using tiffgamut.
    -  
    - Simple mode gamut mapping options:
    -
    -       -i in_intent  -  -  @@ -2307,6 +2833,13 @@ ICC in fine tuning paper emulation in absolute colorimetric mapping mode.

    + The -b flag forces RGB source 0,0,0 to map + to RGB destination 0,0,0. This may be useful for Video + proofing/calibration purposes, where the source is a standard + colorspace such as Rec709, and the display device is well behaved + with black at 0,0,0. By forcing the black mapping, any slight + raising of the black due to display profile tolerances is avoided.
    +
    The -c and -d options allow specification of the viewing conditions for the source and destination colorspaces respectively. The viewing condition @@ -2405,6 +2938,15 @@ ICC + + + + + + + + + @@ -2435,6 +2977,15 @@ ICC + + + + + + + + + @@ -2465,6 +3016,15 @@ ICC + + + + + + + + + @@ -2495,6 +3055,15 @@ ICC + + + + + + + + + @@ -2525,6 +3094,15 @@ ICC + + + + + + + + + @@ -2561,6 +3139,15 @@ White            &nb + + + + + + + + + @@ -2698,10 +3285,78 @@ White            &nb There is more information on the Typical Usage Scenarios page.

    -     The -I b flag applies extra input - processing, applying BT.1886-like +     The -I [b|B|g|G][:p.p][:g.g] series + of options, substitutes an alternative EOTF (Electro-Optical + Transfer Function) for the one specified by the matrix input + profile. This is typically used for creating Video display + emulations.
    +
    + The basic curve is a pure power curve with scaling and a combination + of input black offset and/or output black offset. The choice of flag + determines the way the power value is interpreted, and the default + balance between input and output black offset handling.
    +
    + The lower case b and g flags use an effective power + value specification, where the 50% input maps to the same output + value as a pure power curve with a perfect black. These are the + recommended flags to use, since this means that the overall contrast + of the reproduction will not be affected so much by differences and + variations in the black level, or how the black level is accounted + for. The default effective power value is 2.2.
    +
    + The upper case B and G flags use a technical power + value specification, where the power value is the actual one that + will be used. The end result will vary much more with the black + level of the display though. The default technical power value is + 2.4.
    +
    + The b and B flags default to the black level being + accounted for as a full input offset, where the power curve is + shifted and scaled to match the black point, preserving the black + shadow tonality. This is what BT.1886 + uses.
    +
    + The g and G flags default to the black level being + accounted for as a full output offset, where the power curve is + scaled to allow for the black point, losing some black shadow + tonality with higher black points. This is what many people think of + as a "pure" power curve, even though this is not possible unless the + display has a perfect zero black level.
    +
    + The optional :g.g value is the power to be used. This will + be an effective value if the b or g flags is used, + or the technical value if the B or G flag is used. + This is the primary way to make an allowance for the brightness of + the viewing environment for Video . Darker viewing environments + probably need a larger gamma value, while lighter viewing + environments probably need a lower value.
    +
    + The second optional :p.p value is the proportion of black + value that should be accounted for as output offset (the gamma value + must also be specified after this). This defaults to 0.0 for the b + and B flags, and 1.0 for the g and G flags, + but by specifying it explicitly as a value between 0.0 and 1.0, a + hybrid curve characteristic can be obtained. Setting a hybrid value + is a way of maintaining black shadow tonality while being able to + control how much detail is retained in those shadows. An appropriate + value may depend on exactly how the video material was mastered.
    +
    + Illustrative combinations are:
    +
    + -I b        +            Full + input offset (BT.1886 like) with effective gamma of 2.2
    +     -I g                   + + + + + + + Full output offset with effective gamma of 2.2
    +     -I B                  @@ -2709,46 +3364,107 @@ White            &nb + Full input offset (BT.1886 like) with technical gamma of 2.4. + This exactly implements the BT.1886 specification.
    +     -I G                  - video gamma mapping using an effective gamma of 2.2 by default, and - overridable using -I b:g.g where g.g is the gamma. - The gamma is an effective gamma, meaning that its effect on 50% - input is the same as that of a pure power curve, in spite of any - black offset added by BT.1886. This has the benefit of making the - overall effect of brightness independent of the black level of the - display. Setting an effective gamma other than 2.2 is one way of - making the viewing condition adjustment for the different conditions - of video encoding and decoding, or for modelling the source - colorspace as a rendering on a video display. This would be used as - an alternative to using gamut mapping mode and setting explicit - input and output viewing conditions, or in combination with - appearance adjustments. BT.1886 will only work with matrix type - input profiles. The default value of 2.2 is probably suitable for - dim viewing conditions, and it may be desirable to override this - default if your viewing conditions are darker or lighter. For - lighter conditions, try "-I b:2.2". For darker conditions, try "-I - b:2.6".
    + + + Full output offset with technical gamma of 2.2

    - The -I B flag applies extra input - processing, applying BT.1886 - video gamma mapping using the BT.1886 gamma of 2.4 by default, and - overridable using -I b:g.g where g.g is the gamma. - The gamma is the technical gamma, or power applied to the input - image, and this means that its effect on 50% input will depend on - the black level of the display, making the overall brightness - somewhat unpredictable. For a more predictable effect, use -I b.
    + -I b:2.3             + + + + + + + + Full input offset (BT.1886 like) with effective gamma of 2.3 +
    +     -I g:2.3             + + + + + + + + Full output offset with effective gamma of 2.3
    +     -I B:2.35           + + + + + + + + Full input offset (BT.1886 like) with technical gamma of 2.35
    + -I G:2.35           + + + + + + + + Full output offset with technical gamma of 2.35
    +
    + -I b:0.4:2.3        + 60% input offset, 40% output offset with effective gamma of 2.3
    + -I g:0.4:2.3        + + + + + + + + Same as above.
    +     -I B:0.4:2.35      60% input + offset, 40% output offset with technical gamma of 2.35
    +     -I G:0.4:2.35      Same as + above.

    The -e flag applies a Video encoding to the input. See below and -E for the list of encodings.

    +
         + style="font-family: monospace;">     + T +                + + + + + + + + + + + + + + + + + + + RGB (16-235)/255 "TV" levels, clip WTW + [Input Only]
    +          + x                @@ -2759,6 +3475,15 @@ White            &nb + + + + + + + + + xvYCC Rec601 YCbCr Rec709 Prims. SD (16-235,240)/255 "TV" levels
         @@ -2772,6 +3497,15 @@ White            &nb + + + + + + + + + xvYCC Rec709 YCbCr Rec709 Prims. HD (16-235,240)/255 "TV" levels

    @@ -2785,6 +3519,13 @@ White            &nb as UHD Rec2020, or Digital Cinema SMPTE431 P3, then the corresponding ICC profile should be provided as the source profile.

    + The -e T option uses the same encoding as -e t, but + rather than handling WTW (Whiter Than White, or out of range values) + using extrapolation, it clips them to the valid range. This can be + useful if you are dealing with source material that has WTW values, + but your TV or Video display clips these out of range values in a + way that alters the hue.
    +
    The -E flag applies a Video encoding to the output. The possible encoding are:

    @@ -2800,6 +3541,15 @@ White            &nb + + + + + + + + + normal RGB 0..1 full range levels (default)
         t                @@ -2812,8 +3562,22 @@ White            &nb - RGB (16-235)/255 "TV" levels
    -      + + + + + + + + + + RGB (16-235)/255 "TV" levels
    +      + 6                @@ -2824,6 +3588,15 @@ White            &nb + + + + + + + + + Rec601 YCbCr SD (16-235,240)/255 "TV" levels
         7                @@ -2836,6 +3609,15 @@ White            &nb + + + + + + + + + Rec709 1125/60Hz YCbCr HD (16-235,240)/255 "TV" levels
         5                @@ -2848,6 +3630,15 @@ White            &nb + + + + + + + + + Rec709 1250/50Hz YCbCr HD (16-235,240)/255 "TV" levels
         2                @@ -2860,6 +3651,15 @@ White            &nb + + + + + + + + + Rec2020 YCbCr UHD (16-235,240)/255 "TV" levels
         C                @@ -2872,12 +3672,22 @@ White            &nb + + + + + + + + + Rec2020 Constant Luminance YCbCr UHD (16-235,240)/255 "TV" - levels
    -
    -
    + levels
    +
    + The T
    The -P option causes a diagnostic 3D - VRML plots to be created that + X3DOM plots to be created that illustrate the gamut mapping generated.

    The inprofile argument specifies the @@ -2911,6 +3721,15 @@ White            &nb + + + + + + + + + diff --git a/doc/colprof.html b/doc/colprof.html index 022f984..b3b6df2 100644 --- a/doc/colprof.html +++ b/doc/colprof.html @@ -29,6 +29,14 @@ + + + + + + + + @@ -65,6 +73,14 @@ + + + + + + + +           Default intent: Perceptual, Rel. Colorimetric, Saturation, Abs. @@ -90,6 +106,14 @@ + + + + + + + + @@ -119,6 +143,14 @@ + + + + + + + + @@ -134,7 +166,8 @@                Don't put the input .ti3 data in the profile
      -k zhxr  -           Black generation: z = zero K,
    +           Black Ink generation: z = + zero K,
                    @@ -161,6 +194,14 @@ x + + + + + + + + @@ -197,6 +238,14 @@ White + + + + + + + + @@ -233,6 +282,14 @@ Wh + + + + + + + + @@ -269,6 +326,14 @@ Wh + + + + + + + + @@ -304,6 +369,14 @@ Black + + + + + + + + @@ -340,6 +413,14 @@ concave, + + + + + + + + @@ -363,6 +444,14 @@ concave, + + + + + + + + Same as -k, but target is K locus rather than K value itself
    @@ -399,6 +488,14 @@ cLUT + + + + + + + + @@ -434,6 +531,14 @@ s + + + + + + + + @@ -470,6 +575,14 @@ S + + + + + + + + @@ -497,6 +610,14 @@ S + + + + + + + + @@ -529,6 +650,14 @@ and + + + + + + + + @@ -539,11 +668,27 @@ and primaries to be +ve
    +  -B X,Y,Z           + + + + + + + Display Black Point override hack
     -V demphasis       + + + + + + + + Degree of dark region cLUT grid emphasis 1.0-3.0 (default 1.00 = none)
     -f [illum] @@ -562,6 +707,14 @@ and + + + + + + + + M0, M1, M2, A, C, D50 (def.), D50M2, D65, F5, F8, F10 or file.sp ]
    @@ -578,6 +731,14 @@ and + + + + + + + +         Choose illuminant for computation of CIE XYZ from spectral data & FWA:
    @@ -604,6 +765,14 @@ D50M2, + + + + + + + + D65, F5, F8, F10 or file.sp
     -o observ      @@ -623,6 +792,14 @@ D50M2, + + + + + + + + @@ -662,6 +839,14 @@ for + + + + + + + + @@ -687,6 +872,14 @@ for + + + + + + + + @@ -713,6 +906,14 @@ for + + + + + + + + @@ -739,6 +940,14 @@ for + + + + + + + + @@ -773,6 +982,14 @@ for + + + + + + + + @@ -815,6 +1032,14 @@ for + + + + + + + + @@ -840,6 +1065,14 @@ for + + + + + + + + @@ -867,6 +1100,14 @@ for + + + + + + + + rl - White Point Matched Colorimetric (Lab)
     -c viewcond        @@ -883,6 +1124,14 @@ for + + + + + + + + @@ -909,6 +1158,14 @@ for + + + + + + + + @@ -934,6 +1191,14 @@ for + + + + + + + + @@ -960,6 +1225,14 @@ for + + + + + + + + @@ -985,6 +1258,14 @@ for + + + + + + + + @@ -1010,6 +1291,14 @@ for + + + + + + + + @@ -1064,6 +1353,14 @@ for + + + + + + + + @@ -1111,6 +1408,14 @@ for + + + + + + + + g:glare       Glare light % of ambient (default 1)
    @@ -1150,7 +1455,15 @@ for - Create gamut gammap_p.wrl and gammap_s.wrl diagostics
    + + + + + + + + + Create gamut gammap_p.x3d.html and gammap_s.x3d.html diagostics
     -O outputfile        Override @@ -1167,6 +1480,14 @@ Override + + + + + + + + @@ -1313,6 +1634,14 @@ the + + + + + + + + @@ -1339,6 +1668,14 @@ the + + + + + + + + @@ -1400,6 +1737,14 @@ the + + + + + + + + @@ -1426,6 +1771,14 @@ the + + + + + + + + @@ -1451,6 +1804,14 @@ the + + + + + + + + @@ -1476,6 +1837,14 @@ the + + + + + + + + @@ -1501,6 +1870,14 @@ the + + + + + + + + @@ -1534,6 +1911,14 @@ White            &nb + + + + + + + + @@ -1708,6 +2093,26 @@ White            &nb black and primary values, so as to work with these programs, but this will reduce the accuracy of the profile.

    + -B X,Y,Z This option is for display profiles + only, and allows overriding the black point of the resulting + profile. The XYZ value is in absolute instrument measurement units. + This option should be used only in special circumstances, for + instance if the display has a very low black point and the + instrument is not capable of measuring the black point accurately or + consistently. In this case a manual estimate of the black point + could be made and provided as the argument to -B. It may also be + useful for displays with black points that approach perfect black + (ie. Plasma or OLED) where a value of 0,0,0 may be more accurate + than typical instrument measurements. A value that is too different + to the default computed black point will likely result in a profile + with strange behavior near black.
    + Note that the default contents of the .ti3 created by dispread is normalised to be 100 for the + white point Y value, and similarly values returned by icclu -ia -px + are normalized to a white Y value of 1.0, which is not what the -B + option expects, so some care needs to be taken in specifying and + evaluating the resulting black point XYZ values.
    +
    The -V demphasis parameter allows sets the degree to which cLUT grid spacing should emphasize the accuracy of modelling the device response in the dark regions, over that of the @@ -1735,14 +2140,14 @@ White            &nb Ultra Violet to the one the instrument actually used in the measurement. There are two ways this can be used:

    - The first and most common is to use the -f flag with the -i - illuminant parameter, to make the color values more accurately - reflect their appearance under the viewing illuminant. This will - work accurately if you specify the actual illuminant spectrum you are using to view the - print, using the -i flag. If you are - doing proofing, you need to apply this to The first and most useful is to use the -f flag with + the -i illuminant parameter (i.e. "-f -i D50"), to + make the color values more accurately reflect their appearance under + the viewing illuminant. This will work accurately if you specify the + actual illuminant spectrum + you are using to view the print, using the -i + flag. If you are doing proofing, you need to apply this to both your source profile, and your destination profile. Note that it is not sufficient to specify an illuminant with the same white point as the one you are @@ -1763,6 +2168,14 @@ White            &nb + + + + + + + + @@ -1785,6 +2198,7 @@ White            &nb ref/D50_X.X.sp set of illuminant spectra are the D50 spectrum with different levels of U.V. added or subtracted, ref/D50_1.0.sp being the standard D50 illuminant, and may be somewhere to start.
    +
     [Note: Generally using -f with the standard (-i) D50 illuminant spectrum will predict that the device will produce bluer output than the default of not @@ -1797,13 +2211,14 @@ White            &nb result will be, as the overall color correction compensates for the blueness. The opposite will happen for an input profile.]

    - The second way of using the -f flag is to provide it with a - instrument simulation illuminant spectrum parameter, in addition to - the default D50 or -i parameter  CIE XYZ  - calculation illuminant. This more complicated scenario - simulates the measurement of the spectral reflectance of the samples - under a particular instrument illuminant, then computes the CIE XYZ - values of that reflectance spectrum under the default D50 or -i + The second way of using the -f flag is to provide it + with a instrument simulation illuminant spectrum parameter, in + addition to the default D50 or -i parameter CIE XYZ  + calculation illuminant (i.e. "-f M1", or "-f A -i D65" + etc.). This more complicated scenario simulates the measurement + of the spectral reflectance of the samples under a particular + instrument illuminant, then computes the CIE XYZ values of + that reflectance spectrum under the default D50 or -i parameter illuminant. This is not used to give a more accurate real world result, but to provide simulations of various standardized measurement conditions. For instance, to reproduce ISO @@ -1817,10 +2232,10 @@ White            &nb equivalent to    -f D50
        -f M2        equivalent to    -f D50M2
    -
    -  Note that using -f M2 - gives a result that is comparable to that of a U.V. cut filter - instrument. See also the discussion About +
    +  Note that using -f + M2 gives a result that is comparable to that of a U.V. cut + filter instrument. See also the discussion     About Fluorescent Whitening Agent compensation.

    The -i parameter allows specifying a @@ -2064,7 +2479,7 @@ White            &nb been applied) into the device gamut.

    The -P option causes diagnostic 3D VRML plots to be created that + href="File_Formats.html#X3DOM">X3DOM plots to be created that illustrate the gamut mappings generated for the perceptual and saturation intent tables.

    diff --git a/doc/colverify.html b/doc/colverify.html index 3f8bc72..daebbdd 100644 --- a/doc/colverify.html +++ b/doc/colverify.html @@ -3,7 +3,7 @@ colverify + charset=windows-1252"> @@ -24,46 +24,75 @@ Normalise + + + each files reading to white Y
     -N               Normalise + + + each files reading to white XYZ
    +  -m               + Normalise each files reading to its white X+Y+Z
    +  -M               + Normalise both files reading to mean white XYZ
     -D               Use + + + D50 100.0 as L*a*b* white reference
     -c             + + +   Show CIE94 delta E values
     -k               Show CIEDE2000 delta E values
    +  -h               + + + Plot a histogram of delta E's
     -s               Sort patch value by error
     -w             -   create VRML vector visualisation (measured.wrl)
    + + + +   create X3DOM vector visualisation (measured.x3d.html)
     -W             -   create VRML marker & vector visualisation - (measured.wrl)
    +   create X3DOM marker & vector visualisation + (measured.x3d.html)
      -x             -   Use VRML axes
    + + + +   Use X3DOM axes
         -f [illum]       Use Fluorescent Whitening Agent compensation [opt. simulated inst. illum.:
                       + + + M0, M1, M2, A, C, D50 (def.), D50M2, D65, F5, F8, F10 or file.sp]
     -i illum         @@ -72,12 +101,18 @@ Use                    + + + A, C, D50 (def.), D50M2, D65, F5, F8, F10 or file.sp
     -o observ        Choose CIE Observer for spectral data:
                       + + + 1931_2 (def.), 1964_10, S&B 1955_2, shaw, J&V 1978_2
     -L profile.icm   Skip any first file out of @@ -103,6 +138,14 @@ Use to the XYZ of white for each set before comparison. White is assumed to be the patch with the largest Y value.

    + The -m flag causes the two sets of values to be normalized + to the X+Y+Z of white for each set before comparison. White is + assumed to be the patch with the largest Y value.
    +
    + The -M flag causes the two sets of values to be normalized + to the average XYZ of the whites from each set before comparison. + White is assumed to be the patch with the largest Y value.
    +
    The -D flag causes the white reference point for the conversion to L*a*b* to be D50 with a Y value of 100%. By default the sample with the largest Y value is found, and the L*a*b* white @@ -122,11 +165,14 @@ Use CIEDE2000 delta E has a closer correspondence with perceived color differences than either CIE76 or CIE94 delta E values.

    + The -h flag will display a histogram plot of the fit delta + E's. The X scale is delta E, the Y scale is %
    +
    If the -s flag is used in combination with the -v flag, then the test point by test point output will be sorted from worst to best.

    - The -w creates a VRML + The -w creates a X3DOM 3D visualization of the differences between the test points in D50 L*a*b* space, each difference being shown as a line vector. If the -W flag is used, then the target @@ -135,7 +181,7 @@ Use CGATS file) by using the same file for both "target" and "measured" values.

    - The -x flag adds Lab axes to the VRML output.
    + The -x flag adds Lab axes to the X3DOM output.

    The -f flag enables Fluorescent Whitening Agent (FWA) compensation. This only works if spectral data is available and, the @@ -180,10 +226,10 @@ Use The same parameter value should be used as was used during the creation of the profile.

    - The -L profile.icm parameter causes colverify to ignore - any patches from the first file that are out of gamut according to - the profile. This can be useful in evaluating accuracy without - tainting it by impossible to reach colors.
    + The -L profile.icm parameter causes colverify to + ignore any patches from the first file that are out of gamut + according to the profile. This can be useful in evaluating accuracy + without tainting it by impossible to reach colors.

    The -X file.ccmx option applies the given 3x3 calibration matrix to the values from the second file before doing diff --git a/doc/dispcal.html b/doc/dispcal.html index e23a8d0..993124d 100644 --- a/doc/dispcal.html +++ b/doc/dispcal.html @@ -1,28 +1,28 @@ - - - - dispcal - - - - -

    spectro/dispcal

    -

    Summary

    - Given calibration target information [white point, maximum - brightness, and response curve ("gamma")], display a series of test - patches on the display, and using the colorimetric values read, - create a calibration lookup tables that make the display meet the - desired target. The type of instrument is determined by the - communication port selected. Emission and display measurement - instruments are supported.
    -

    Usage

    - dispcal - [-options] inoutfile
    -  -v [n] + + + + dispcal + + + + +

    spectro/dispcal

    +

    Summary

    + Given calibration target information [white point, maximum + brightness, and response curve ("gamma")], display a series of test + patches on the display, and using the colorimetric values read, + create a calibration lookup tables that make the display meet the + desired target. The type of instrument is determined by the + communication port selected. Emission and display measurement + instruments are supported.
    +

    Usage

    + dispcal + [-options] inoutfile
    +  -v [n]               @@ -57,17 +57,29 @@ - Verbose mode
    -      -display displayname [X11 only] Choose X11 display - name
    -      -d n[,m] -             - [X11 only]Choose the display from the following list (default - 1),
    + + + + + + + + + + + + + Verbose mode
    +      -display displayname [X11 only] Choose X11 display + name
    +      -d n[,m] +             + [X11 only]Choose the display from the following list (default + 1),
                          and optionally @@ -110,8 +122,20 @@ for - VideoLUT access.
    -  
    +      -d n                 Choose the @@ -154,8 +178,6 @@ list - 1)
    -  -dweb[:port]         @@ -167,6 +189,9 @@ list + + 1)
    +  -dweb[:port]         @@ -188,9 +213,6 @@ list - Display via a web server at port (default 8080)
    -  -dmadvr -              @@ -207,19 +229,16 @@ list - [MSWin] Display via MadVR Video Renderer
    -   -c + + Display via a web server at port (default 8080)
    +      -dmadvr +              @@ -247,37 +266,9 @@ list - listno     -        Set communication port from - the following list (default 1)
    -      -r -              -      Report on the calibrated display then - exit
    -      -R -              -      Report on the uncalibrated display then - exit
    -  -m -              -      Skip adjustment of the monitor - controls
    -   -o [profile.icm]     Create - fast matrix/shaper profile [different filename to outfile.icm]
    -  -O description       + + [MSWin] Display via MadVR Video Renderer
    +  -dcc[:n]             @@ -285,6 +276,14 @@ list + + Display via n'th ChromeCast (default 1, ? for list)
    +   -c @@ -311,16 +310,6 @@ list - Fast ICC Profile Description string (Default "outfile")
    -      -u                   -Update -previous -calibration -and -(if --o -used) -ICC @@ -339,6 +328,38 @@ ICC + + listno     +        Set communication port from + the following list (default 1)
    +      -r +              +      Report on the calibrated display then + exit
    +      -R +              +      Report on the uncalibrated display then + exit
    +  -m +              +      Skip adjustment of the monitor + controls
    +   -o [profile.icm]     Create + fast matrix/shaper profile [different filename to outfile.icm]
    +  -O description       @@ -354,12 +375,6 @@ ICC - profile VideoLUTs
    -  -q [lmh]             @@ -389,12 +404,21 @@ ICC + + Fast ICC Profile Description string (Default "outfile")
    +  -u                   +Update +previous +calibration +and +(if +-o +used) +ICC - Quality - Low, Medium (def), High
    -  -p                   @@ -417,10 +441,6 @@ ICC - Use telephoto mode (ie. for a projector) (if available)
    -      -y X -                 @@ -439,6 +459,13 @@ ICC + + profile VideoLUTs
    +  -q [lmh]             @@ -454,20 +481,6 @@ ICC - Display type - instrument specific list to choose from.
    -      -t [temp]            -White -Daylight -locus -target, -optional -target -temperaturee -in @@ -497,22 +510,14 @@ in + + Quality - Low, Medium (def), High
    +  -p                   + - deg. K (deflt.)
    -      -T [temp]            -White -Black -Body -locus -target, -optional -target -temperaturee @@ -541,16 +546,22 @@ temperaturee + + Use telephoto mode (ie. for a projector) (if available)
    +      -y X +                 + + + + + + - in deg. K
    -  -w x,y               @@ -584,11 +595,22 @@ temperaturee - Set the target white point as chromaticity coordinates
    -  -b bright
    +      -t [temp]            +White +Daylight +locus +target, +optional +target +temperaturee +in + @@ -622,11 +644,6 @@ temperaturee - Set the target white brightness in cd/m^2
    -  -g gamma             @@ -637,6 +654,19 @@ temperaturee + + deg. K (deflt.)
    +      -T [temp]            +White +Black +Body +locus +target, +optional +target +temperaturee @@ -660,9 +690,6 @@ temperaturee - Set the target response curve gamma (Def. 2.4)
    -                       @@ -684,6 +711,12 @@ temperaturee + + in deg. K
    +  -w x,y               @@ -696,9 +729,6 @@ temperaturee - Use "-gl" for L*a*b* curve
    -                @@ -731,17 +761,13 @@ temperaturee + + Set the target white point as chromaticity coordinates
    +  -b bright            -        Use "-gs" for sRGB curve
    -                       -Use -"-g709" -for -REC -709 -curve -(should -use @@ -775,8 +801,6 @@ use - -a as well!)
    -                       @@ -787,6 +811,12 @@ use + + Set the target white brightness in cd/m^2
    +  -g gamma             @@ -810,9 +840,6 @@ use - Use "-g240" for SMPTE 240M curve     (should use -a as well!)
    -                       @@ -834,6 +861,10 @@ use + + Set the target response curve gamma (Def. 2.4)
    +                       @@ -846,7 +877,6 @@ use - Use "-G2.4 -f0" for BT.1886                                               @@ -873,27 +903,16 @@ use -
    -  -G gamma -             - Set the target response curve actual technical gamma
    -  -f [degree]          -Amount -of -black -level -accounted -for -with -output + + Use "-gl" for L*a*b* curve
    +                @@ -921,8 +940,6 @@ output - offset (default all output offset)
    -  -a ambient           @@ -940,6 +957,17 @@ output + +        Use "-gs" for sRGB curve
    +                       +Use +"-g709" +for +REC +709 +curve +(should +use @@ -956,19 +984,6 @@ output - Use viewing condition adjustment for ambient in Lux
    -      -k factor -            - Amount to try and correct black point hue. Default 1.0, LCD - default 0.0
    -      -A rate -              - Rate of blending from neutral to black point. Default 4.0
    -  -B bkbright          @@ -997,17 +1012,14 @@ output + + -a as well!)
    +                       - Set the target black brightness in cd/m^2
    -  -e [n]               @@ -1041,18 +1053,16 @@ output - Run n verify passes on final curves
    -      -z -                   + + Use "-g240" for SMPTE 240M curve (should use -a as well!)
    +                       @@ -1080,21 +1090,6 @@ output - Run only verify pass on installed calibration curves
    -  -P - ho,vo,ss[,vs]     Position test window - and scale it
    -                       -ho,vi: -0.0 -= -left/top, -0.5 -= -center, -1.0 @@ -1112,6 +1107,8 @@ center, + + Use "-G2.4 -f0" for BT.1886                                               @@ -1128,16 +1125,6 @@ center, - = right/bottom etc.
    -                       -ss: -0.5 -= -half, -1.0 -= -normal, -2.0 @@ -1159,6 +1146,22 @@ normal, + +
    +  -G gamma +             + Set the target response curve actual technical gamma
    +  -f [degree]          +Amount +of +black +level +accounted +for +with +output @@ -1171,9 +1174,6 @@ normal, - = double etc.
    -                           @@ -1194,10 +1194,6 @@ normal, - ss,vs: = optional horizontal, vertical scale.
    -  -F -                   @@ -1210,6 +1206,9 @@ normal, + + offset (default all output offset)
    +  -a ambient           @@ -1231,11 +1230,6 @@ normal, - Fill whole screen with black background
    -  -E -                   @@ -1248,21 +1242,6 @@ normal, - Video - encode output as (16-235)/255 "TV" levels
    -  -n              -     -[X11 -only] -Don't -set -override -redirect -on @@ -1274,11 +1253,29 @@ on + + Use viewing condition adjustment for ambient in Lux
    +      -k factor +            + Amount to try and correct black point hue. Default 1.0, LCD + default 0.0
    +      -A rate +              + Rate of blending from neutral to black point. Default 4.0
    +  -b                   + + Use forced black point hack
    +      -B bkbright          + @@ -1296,14 +1293,6 @@ on - test window
    -      -J -              -      Run instrument calibration first
    -      -N                   @@ -1330,6 +1319,13 @@ on + + Set the target black brightness in cd/m^2
    +  -e [n]               @@ -1337,18 +1333,6 @@ on - Disable initial calibration of instrument if possible
    -  -H -              -      Use high resolution spectrum mode (if - available)
    -
    -      -X file.ccmx         @@ -1382,16 +1366,17 @@ on - Apply Colorimeter Correction Matrix
    -  -X - file.ccss          -Use -Colorimeter -Calibration + + Run n verify passes on final curves
    +      -z +                   @@ -1421,14 +1406,6 @@ Calibration - Spectral Samples for calibration
    -      -Q observ        -     Choose CIE Observer for spectrometer or CCSS - colorimeter data:
    -             @@ -1444,6 +1421,22 @@ Calibration + + Run only verify pass on installed calibration curves
    +  -P + ho,vo,ss[,vs]     Position test window + and scale it
    +                       +ho,vi: +0.0 += +left/top, +0.5 += +center, +1.0 @@ -1462,11 +1455,6 @@ Calibration -           1931_2     (def.), 1964_10, S&B 1955_2, shaw, - J&V 1978_2, 1964_10c
    -  -I b|w               @@ -1493,6 +1481,17 @@ Calibration + + = right/bottom etc.
    +                       +ss: +0.5 += +half, +1.0 += +normal, +2.0 @@ -1500,51 +1499,10 @@ Calibration - Drift compensation, Black: -Ib, White: -Iw, Both: -Ibw
    -  -Y - R:rate            - Override measured refresh rate with rate Hz
    -          -Y A -             -     Use non-adaptive integration time mode (if - available).
    -  -Y - p -             -     Don't wait for the instrument to be placed on - the display
    -  -C "command" -         Invoke shell - "command" each time a color is set
    -  -M "command" -         Invoke shell - "command" each time a color is measured
    -  -W n|h|x             -Override -serial -port -flow -control: -n -= -none, @@ -1578,12 +1536,10 @@ none, - h = HW, x = Xon/Xoff
    -  -D [level]           + + = double etc.
    +                           @@ -1615,14 +1571,13 @@ none, + + ss,vs: = optional horizontal, vertical scale.
    +  -F +                   - Print debug diagnostics to stderr
    -  inoutfile            @@ -1656,79 +1611,6 @@ none, - Base name for created - or updated .cal  and .icm output files
    -
    -

    Comments
    -

    - This is the tool is used for adjusting and calibrating a display to - reach specified target behaviour, and optionally profiling it.  - For best results on a CRT, you should run this against a neutral - grey desktop background, and avoid having any bright images or - windows on the screen at the time you run dispcal. You could also - use the -B option to black - the whole screen out, although this will make it impossible to - control dispcal unless you have more than one display.
    -
    - The -v flag reports progress information, - as well as other statistics about the progress of calibration. A - numerical argument greater than 1 gives greater verbosity. 2 will - give per step adjustment and repeat information, while 3 will give - even greater technical detail.
    -
    - When running on a UNIX based system that used - the X11 Windowing System, dispcal will by default use the - $DISPLAY environment variable to determine which local or remote - display and screen to read from. This can be overridden by supplying - an X11 display name to the -display - option. Note that if Xinerama is active, you can't select the screen - using $DISPLAY or -display, you have to select it using the -d parameter.
    -
    - By default the main display will be the location of - the test window. If the system has more than one display or screen, - an alternate display/screen can be selected with the -d parameter. If you invoke dispcal so as to display the - usage information (i.e. "dispcal -?" or "dispcal --"), then the - discovered displays/screens will be listed. Multiple displays may - not be listed, if they appear as a single display to the operating - system (ie. the multi-display support is hidden in the video card - driver). On UNIX based system that used the X11 Windowing System, - the -d parameter will - override the screen specified by the $DISPLAY or parameter.
    -
    - Note that if VideoLUTs for a - display are not accessible (i.e. no hardware calibration - capability), dispcal will - will issue a warning, but continue creating a calibration based on - the display "as-is" rather than its native response. See the -o flag for an explanation of the - implications of having no access to the VideoLUTs.
    -
    - On X11 the inability to access VideoLUTs could be because you are - trying to access a remote display, and the remote display doesn't - support the XF86VidMode extension, or perhaps you are running - multiple monitors using NVidia TwinView, or MergedFB, and trying to - access anything other than the primary monitor. TwinView and - MergedFB don't properly support the XF86VidMode extension for - multiple displays. You can use dispwin -r - to test whether the VideoLUTs are accessible for a particular - display. See also below, on how to select a different display for - VideoLUT access. Also note that dispcal will fail if the Visual - depth doesn't match the VideoLUT depth. Typically the VideoLUTs have - 256 entries per color component, so the Visual generally needs to be - 24 bits, 8 bits per color component.
    -
    - Because of the difficulty cause by TwinView and - MergedFB in X11 based systems, you can optionally specify a separate - display number after the display that is going to be used to present - test patches, for accessing the VideoLUT hardware. This must be - specified as a single string, e.g. -d @@ -1738,6 +1620,12 @@ none, + + Fill whole screen with black background
    +  -E +                   @@ -1761,260 +1649,23 @@ none, + + Video + encode output as (16-235)/255 "TV" levels
    +  -n              +     +[X11 +only] +Don't +set +override +redirect +on - 1,2 . Some experimentation may be needed using dispwin on such systems, to discover what - screen has access to the VideoLUT hardware, and which screens the - test patches appear on. You may be able to calibrate one screen, and - then share the calibration with another screen. Profiling can be - done independently to calibration on each screen.
    -
    - -dweb or - -dweb:port starts a - standalone web server on your machine, which then allows a local or - remote web browser to display the the color test patches. By default - port 8080 is used, but this - can be overridden by appending a : - and the port number i.e. -dweb:8001. - The URL will be http:// - then name of the machine or its I.P. address followed by a colon and - the port number - e.g something like http://192.168.0.1:8080. If you use the verbose - option (-v) then a likely - URL will be printed once the server is started, or you could run ipconfig (MSWin) or /sbin/ifconfig (Linux or OS X) - and identify an internet address for your machine that way. JavaScript - needs to be enabled in your web browser for this to work.
    -
    - Note that if you use this method of displaying test patches, that - there is no access to the display VideoLUTs and that the colors will - be displayed with 8 bit per component precision, and any - screen-saver or power-saver will not be disabled. You will also be - at the mercy of any color management applied by the web browser, and - may have to carefully review and configure such color management. - See the -o flag for an explanation of the - implications of having no access to the VideoLUTs.
    -
    - -dmadvr - [MSWin only] causes test patches to be displayed using the MadVR - video renderer. Note that you may have to start the video playback - software and load a video clip in pause for this to work. MadVR - rendering does not need or support VideoLUT access, but be aware - that the state of the Graphics Card VideoLUTs may affect the - results, and therefore may have to be set appropriately using - dispwin. Test patch colors will not be processed by the - MadVR 3dLut by default.
    -
    - -c The - instrument is assumed to communicate through a USB or serial - communication port, and the port can be selected with the -c - option, if the instrument is not connected to the first port. If you - invoke dispcal so as to - display the usage information (i.e. "dispcal -?" or "dispcal --"), - then the discovered USB and serial ports will be listed. On - UNIX/Linux, a list of all possible serial ports are shown, but not - all of them may actually be present on your system.
    -
    - The -r and - -R flags - perform a quick measurement of current display behaviour, reports - and then exits. If the -r - flag is used the measurement are taken using the currently loaded - calibration (Video LUT) curves, and in the case of MadVR renderer - test patch display the Color Management 3dLut. If -R is use, then the uncalibrated - ("raw" or "native") behaviour is measured (ie. no VideoLut or CM). - Reported are:
    -
    -     Black Brightness in cd/m^2
    -     White Brightness in cd/m^2
    -     The approximate Gamma
    -     The white point x,y chromaticity co-ordinates
    -     The correlated color temperature in Kelvin, and - the CIEDE200 to the Black Body locus.
    -     The correlated Daylight temperature in Kelvin, - and the CIEDE200 to the Daylight locus.
    -     The visual color temperature in Kelvin, and the - CIEDE200 to the Black Body locus.
    -     The visual Daylight temperature in Kelvin, and - the CIEDE200 to the Daylight locus.
    -     The visual color temperature in Kelvin
    - (for -R "raw":)
    -     The apparent VideoLUT entry number of significant - bits.
    -
    - Note that the correlated color temperature is the temperature of a - black body radiator that has the closest color to the white point - measured using the traditional CIE 1960 UCS space color difference - formula. The correlated daylight temperature is a similar thing, - except the CIE daylight locus is used. The visual color temperature - values are calculated similarly to the correlated color - temperatures, but using the modern CIEDE2000 color difference - formula to calculate a better visual approximation to the closest - temperature to the displays white point. There will be no difference - between the UCS and CIEDE2000 temperatures if the display white - point actually lies on the particular locus.
    -
    - The -m - option skips the usual process of adjusting the display monitor - contrast, brightness and white point controls, and skips straight to - calibration.
    -
    - -o [profile.icm] Normally dispcal creates just a - calibration file, which can then be used for subsequent - characterization using dispread and - profiling using colprof. If the -o flag is used, dispcal will also create a - shaper/matrix profile. By default it will create a profile named inoutfile.icm, but a differently - named file can be created or updated by specifying the name after - the -o flag. If the -u flag is used with -o, then the ICC profile vcgt calibration curves will be - updated.
    -
    - Note that if VideoLUT access is not possible for the display, that - hardware calibration is not possible. dispcal will create - calibration curves anyway with a warning, and if a profile is - created, it will not contain a 'vcgt' tag, but instead will have the - calibration curves incorporated into the profile itself. If - calibration parameters are chosen that change the displays white - point or brightness, then this will result in a slightly unusual - profile that has a white point that does not correspond with - R=G=B=1.0. Some systems may not cope properly with this type of - profile. See the tutorial for a - further explanation.
    -
    - The -O parameter allows setting of the - shaper/matrix profile description tag. The parameter should be a - string that describes the device and profile. With most command line - shells, it will be necessary to enclose the parameter with double - quotes, so that spaces and other special characters are included in - the parameter, and not mistaken for the start of another flag, or as - a final command line parameter. Many programs that deal with ICC - profiles use the description tag to identify a profile, rather than - the profile filename, so using a descriptive string is important in - being able to find a profile. By default, the profile file name will - be used as the description.
    -
    - -u Normally - dispcal creates a new - calibration file and optional profile, based on the requested - targets and the response of the display. This can take a fair amount - of time, particularly if a high quality level has been selected, so - to speed up the process of keeping a display in calibration the -u flag can be used. This uses - the same calibration targets as the previous calibration but does a - smaller number of refinement passes, enough to improve the accuracy - of the calibration to account for drift in the device. If the -o flag is used as well, then - the ICC profile will have - its vcgt tag updated with the new calibration. This keeps the - profile up to date with the display. Normally dispcal -u will use the same - quality level that was specified in the previous calibration, but - this can be overridden using the -q - flag. Any options that attempt to change the calibration target (ie. - white point, brightness, gamma etc.) will be ignored. Adjustment of - the display monitor controls is skipped. A profile cannot be updated - if the display does not support hardware calibration (no VideoLUT - access).
    -
    -   Quality - Low, Medium (def), High. The -q flag determines how much time - and effort to go to in calibrating the display. The higher the - quality, the more test readings will be done, the more refinement - passes will be done, the tighter will be the accuracy tolerance, and - the more detailed will be the calibration of the display. The result - will ultimately be limited by the accuracy of the instrument, the - repeatability of the display and instrument, and the resolution of - the Video Lookup table entries and Digital or Analogue output - (RAMDAC).
    -
    - The -p flag - allows measuring in telephoto mode, using instruments that support - this mode, e.g. the ColorMunki. Telephoto mode is one for taking - emissive measurements from a distance (ie. telespectometer, - tele-colorimeter) mode, and typically would be used for measuring - projector type displays. If a device does not support a specific - telephoto mode, then the normal emissive mode may be suitable for - measuring projectors.
    -
    -   The -y - flag allows setting the Display Type. The selection typically - determines two aspects of of the instrument operation: 1) It may set the measuring mode - to suite refresh or non-refresh displays. - Typically only LCD (Liquid Crystal) displays have a non-refresh - nature. 2) It may select an - instrument calibration matrix suitable for a particular display - type. The selections available depends on the type and model of - instrument, and a list of the options for the discovered instruments - will be shown in the usage - information. For more details on what particular instruments support - and how this works, see Operation of - particular instruments. 3) Any installed CCSS files - (if applicable), or CCMX files. These files are typically created - using ccxxmake, and installed using oeminst. The default and Base Calibration - types will be indicated in the usage.
    -
    - -t Set the target white point - locus to the equivalent of a Daylight spectrum of the given - temperature in degrees Kelvin. By default the white point target - will be the native white of the display, and it's color temperature - and delta E to the daylight spectrum locus will be shown during - monitor adjustment, and adjustments will be recommended to put the - display white point directly on the Daylight locus. If a Daylight - color temperature is given as an argument to -t, then this will become the - target of the adjustment, and the recommended adjustments will be - those needed to make the monitor white point meet the target. - Typical  values might be 5000 for matching printed output, or - 6500, which gives a brighter, bluer look. A white point temperature - different to that native to the display may limit the maximum - brightness possible.
    -
    - -T  Same functionality as - the -t option, except the - white point locus will be the Black Body, or Planckian locus, rather - than the Daylight locus. While these two white point loci are quite - close, they are subtly different. If a temperature is given as an - argument, this will become the Black Body target temperature during - adjustment.
    -
    - -w  An - alternative to specifying a  white point target in Daylight or - Black Body degrees Kevin, is to specify it in chromaticity - co-ordinates. This allows the white point to be a color other than - one on the Daylight or Black Body. Note that the x,y numbers must be - specified as a single string (no space between the numbers and the - comma).
    -
    - -b  Set - the target brightness of white in cd/m^2. If this number cannot be - reached, the brightest output possible is chosen, consistent with - matching the white point target. Note that many of the instruments - are not particularly accurate when assessing the absolute display - brightness in cd/m^2. NOTE - that some LCD screens behave a little strangely near their absolute - white point, and may therefore exhibit odd behavior at values just - below white. It may be advisable in such cases to set a brightness - slightly less than the maximum such a display is capable of.
    -
    - -g gamma  -Set @@ -2048,15 +1699,6 @@ Set - the target response curve gamma. This is normally an exponential - curve (output = input ^gamma), and defaults to 2.4 on MSWindows and - Macintosh OS X 10.6 or latter and Linux/Unix (which is typical of a - CRT type displays real response), and 1.8 on a Macintosh (prior to - OS X 10.6). Four pre-defined curves can be used as well: the sRGB - colorspace response curve, which is an exponent curve with a - straight segment at the dark end and an overall response of - approximately gamma 2.2 (-gs), -the @@ -2067,6 +1709,15 @@ the + + test window
    +      -J +              +      Run instrument calibration first
    +      -N                   @@ -2090,66 +1741,6 @@ the - L* curve, which is the response of the CIE L*a*b* perceptual - colorspace (-gl). the REC - 709 video standard response curve (-g709) - and the SMPTE 240M video standard response curve (-g240)
    -
    - Note that a real display - can't reproduce any of these ideal curves, since it will have a - non-zero black point, whereas all the ideal curves assume zero light - at zero input. In the case of a gamma curve target, dispcal uses an - actual technical power curve shape that aims for the same relative - output at 50% input as the ideal gamma power curve. To allow for the - non-zero black level of a real display, by default dispcal will offset the target - curve values so that zero input gives the actual black level of the - display (output offset). This ensures that the target curve better - corresponds to the typical natural behavior of displays, but it may - not be the most visually even progression from display minimum, but - this behavior can be changed using the -f option (see below).
    -
    - Also note that many color - spaces are encoded with, and labelled as having a gamma of - approximately 2.2 (ie. sRGB, - REC 709, SMPTE 240M, Macintosh OS X 10.6), but are actually intended - to be displayed on a display with a typical CRT gamma of 2.4 viewed in a darkened - environment. This is because this 2.2 - gamma is a source gamma encoding in bright viewing conditions such - as a television studio, while typical display viewing conditions are - quite dark by comparison, and a contrast expansion of (approx.) - gamma 1.1 is desirable to make the images look as intended. So if - you are displaying images encoded to the sRGB standard, or - displaying video through the calibration, just setting the gamma - curve to sRGB or REC 709 (respectively) is probably not what you want! What you - probably want to do, is to set the gamma curve to about gamma 2.4, - so that the contrast range is expanded appropriately, or alternatively - use sRGB or REC 709 or a gamm of 2.2 but also use the -a - parameter to specify the actual ambient viewing conditions, so that - dispcal can make an - appropriate contrast enhancement. If your instrument is capable of - measuring ambient light levels, then you can do so during the - interactive display control adjustment. See - <http://www.color.org/sRGB.xalter> for details of how sRGB is - intended to be used.
    -
    - It is hard to know whether Apple Macintosh computers prior to OS X - 10.6 should also have such an adjustment, since it is not really - possible to know whether colors labelled as being in such a - colorspace are actually encoded in that gamma with the expectation - that they will be displayed on a display with that actual response, - or whether they are intended to be displayed on a display that - contrast expands by a power 1.1.  Both situations might be the - case, depending on how source material is created!
    -
    - -G gamma  -As @@ -2171,6 +1762,20 @@ As + + Disable initial calibration of instrument if possible
    +  -H +              +      Use high resolution spectrum mode (if + available)
    +
    +      -X file.ccmx         + @@ -2183,100 +1788,6 @@ As - explained above, the gamma value provided to the -g option is used to set and - actual response curve that makes an allowance for the non-zero black - of the actual display, and will have the same relative output at 50% - input as the ideal gamma power curve, and so best matches typical - expectations. The -G option - is an alternative that allows the actual - power to be specified instead, meaning that when combined with the - displays non-zero black value, the response at 50% input will - probably not match that of the ideal power curve with that gamma - value.
    -
    - -f [degree]: - As explained in for the -g - and -G options, real - displays do not have a zero black response, while all the target - response curves do, so this has to be allowed for in some way. The - default way of handling this (equivalent to -f 1.0)  is to - allow for this at the output of the ideal response curve, by - offsetting and scaling the output values. This defined a curve that will match the responses - that many other systems provide and may be a better match to the - natural response of the display, but will give a less visually even - response from black. The - other alternative is to offset and scale the input values into the - ideal response curve so that zero input gives the actual non-zero - display response. This ensures the most visually even progression - from display minimum, but might be hard to achieve since it is - different to the naturally response of a display. A subtlety is to - provide a split between how much of the offset is accounted for as - input to the ideal response curve, and how much is accounted for at - the output, and this can be done by providing a parameter -f degree, where the degree is - 0.0 accounts for it all as input offset, and 1.0 accounts for all of - it as output offset. If -f - is used without a specified degree, a degree of 0.0 is assumed, the - opposite of the default. Note - that using all input offset (degree == 0.0) is equivalent to the use - of the BT.1886 transfer - function.
    -
    - -a ambient: - As explained for the -g - parameter, often colors are encoded in a situation with viewing - conditions that are quite different to the viewing conditions of a - typical display, with the expectation that this difference in - viewing conditions will be allowed for in the way the display is - calibrated. The -a option - is a way of doing this. By default dispcal - will not make any allowances for viewing conditions, but will - calibrate to the specified response curve, but if the -a option is used, or the - ambient level is measured during the interactive display controls - portion of the calibration, an appropriate viewing conditions - adjustment will be performed. For a gamma value or sRGB, the - original viewing conditions will be assumed to be that of the sRGB - standard viewing conditions, while for REC 709 and SMPTE 240M they - will be assumed to be television studio viewing conditions. By - specifying or measuring the ambient lighting for your display, a - viewing conditions adjustment based on the CIECAM02 color appearance - model will be made for the brightness of  your display and the - contrast it makes with your ambient light levels.
    -
    - -k factor: - Normally this will be set automatically, based on the measured black - level of the display. A -k - factor of 1.0 will make all colors down the neutral axis (R=G=B) - have the same hue as the chosen white point. Near the black point, - red, green or blue can only be added, not subtracted from zero, so - the process of making the near black colors have the desired hue, - will lighten them to some - extent. For a device with a good contrast ratio or a black point - that has nearly the same hue as the white, this should not affect - the contrast ration too severely. If the device contrast ratio is - not so good, and the native black hue is noticeably different to - that of the chosen white point (which is often the case for LCD type displays, or CRT type displays with one - channel which has a poor level of black), this could have a - noticeably detrimental effect on an already limited contrast ratio, - and result in a black that is not as good as it can be, and a lower - -k factor should be used. -k values can range between 0.0 - (no correction of black) to 1.0 (full correction of black). If less - than full correction is chosen, then the resulting calibration - curves will have the target white point down most of the curve, but - will then blend over to the native or compromise black point that is - blacker, but not of the right hue. The rate of this blend can be - controlled with the -A - parameter (see below). For applications where maximum contrast ratio - is important (such as Video), use -k0.
    -
    - -A rate:  -If @@ -2308,159 +1819,1278 @@ If + + Apply Colorimeter Correction Matrix
    +  -X + file.ccss          +Use +Colorimeter +Calibration + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + Spectral Samples for calibration
    +      -Q observ        +     Choose CIE Observer for spectrometer or CCSS + colorimeter data:
    +             + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +           1931_2     (def.), 1964_10, S&B 1955_2, shaw, + J&V 1978_2, 1964_10c
    +  -I b|w               + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + Drift compensation, Black: -Ib, White: -Iw, Both: -Ibw
    +  -Y + + + + + + + + + + + + + + + R:rate            + + + + + + + + + + + + + + + Override measured refresh rate with rate Hz
    +          -Y A +             +     Use non-adaptive integration time mode (if + available).
    +  -Y + p +             +     Don't wait for the instrument to be placed on + the display
    +  -C "command" +         Invoke shell + "command" each time a color is set
    +  -M "command" +         Invoke shell + "command" each time a color is measured
    +  -W n|h|x             +Override +serial +port +flow +control: +n += +none, + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + h = HW, x = Xon/Xoff
    +  -D [level]           + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + Print debug diagnostics to stderr
    +  inoutfile            + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + Base name for created + or updated .cal  and .icm output files
    +
    +

    Comments
    +

    + This is the tool is used for adjusting and calibrating a display to + reach specified target behaviour, and optionally profiling it.  + For best results on a CRT, you should run this against a neutral + grey desktop background, and avoid having any bright images or + windows on the screen at the time you run dispcal. You could also + use the -B option to black + the whole screen out, although this will make it impossible to + control dispcal unless you have more than one display.
    +
    + The -v flag reports progress information, + as well as other statistics about the progress of calibration. A + numerical argument greater than 1 gives greater verbosity. 2 will + give per step adjustment and repeat information, while 3 will give + even greater technical detail.
    +
    + When running on a UNIX based system that used + the X11 Windowing System, dispcal will by default use the + $DISPLAY environment variable to determine which local or remote + display and screen to read from. This can be overridden by supplying + an X11 display name to the -display + option. Note that if Xinerama is active, you can't select the screen + using $DISPLAY or -display, you have to select it using the -d parameter.
    +
    + By default the main display will be the location of + the test window. If the system has more than one display or screen, + an alternate display/screen can be selected with the -d parameter. If you invoke dispcal so as to display the + usage information (i.e. "dispcal -?" or "dispcal --"), then the + discovered displays/screens will be listed. Multiple displays may + not be listed, if they appear as a single display to the operating + system (ie. the multi-display support is hidden in the video card + driver). On UNIX based system that used the X11 Windowing System, + the -d parameter will + override the screen specified by the $DISPLAY or parameter.
    +
    + Note that if VideoLUTs for a + display are not accessible (i.e. no hardware calibration + capability), dispcal will + will issue a warning, but continue creating a calibration based on + the display "as-is" rather than its native response. See the -o flag for an explanation of the + implications of having no access to the VideoLUTs.
    +
    + On X11 the inability to access VideoLUTs could be because you are + trying to access a remote display, and the remote display doesn't + support the XF86VidMode extension, or perhaps you are running + multiple monitors using NVidia TwinView, or MergedFB, and trying to + access anything other than the primary monitor. TwinView and + MergedFB don't properly support the XF86VidMode extension for + multiple displays. You can use dispwin -r + to test whether the VideoLUTs are accessible for a particular + display. See also below, on how to select a different display for + VideoLUT access. Also note that dispcal will fail if the Visual + depth doesn't match the VideoLUT depth. Typically the VideoLUTs have + 256 entries per color component, so the Visual generally needs to be + 24 bits, 8 bits per color component.
    +
    + Because of the difficulty cause by TwinView and + MergedFB in X11 based systems, you can optionally specify a separate + display number after the display that is going to be used to present + test patches, for accessing the VideoLUT hardware. This must be + specified as a single string, e.g. -d + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + 1,2 . Some experimentation may be needed using dispwin on such systems, to discover what + screen has access to the VideoLUT hardware, and which screens the + test patches appear on. You may be able to calibrate one screen, and + then share the calibration with another screen. Profiling can be + done independently to calibration on each screen.
    +
    + -dweb or + -dweb:port starts a + standalone web server on your machine, which then allows a local or + remote web browser to display the the color test patches. By default + port 8080 is used, but this + can be overridden by appending a : + and the port number i.e. -dweb:8001. + The URL will be http:// + then name of the machine or its I.P. address followed by a colon and + the port number - e.g something like http://192.168.0.1:8080. If you use the verbose + option (-v) then a likely + URL will be printed once the server is started, or you could run ipconfig (MSWin) or /sbin/ifconfig (Linux or OS X) + and identify an internet address for your machine that way. JavaScript + needs to be enabled in your web browser for this to work. You may + have to modify any firewall to permit port 8080 to be accessed on + your machine.
    +
    + Note that if you use this method of displaying test patches, that + there is no access to the display VideoLUTs and that the colors will + be displayed with 8 bit per component precision, and any + screen-saver or power-saver will not be disabled. You will also be + at the mercy of any color management applied by the web browser, and + may have to carefully review and configure such color management. + See the -o flag for an explanation of the + implications of having no access to the VideoLUTs.
    +
    + -dmadvr + [MSWin only] causes test patches to be displayed using the MadVR + video renderer. Note that you may have to start the video playback + software and load a video clip in pause for this to work. MadVR + rendering does not need or support VideoLUT access, but be aware + that the state of the Graphics Card VideoLUTs may affect the + results, and therefore may have to be set appropriately using + dispwin. Test patch colors will not be processed by the + MadVR 3dLut by default.
    +
    + -dcc or -dcc:no + causes test patches to be displayed using and available ChromeCast to + your TV. Use -dcc:? to display a list of ChromeCasts on your + local network. Note that the ChromeCast as a test patch source is + probably the least accurate of your choices, since it + up-samples the test patch and transforms from RGB to YCC and back, + but should be accurate within ± 1 bit. You may have to modify any + firewall to permit port 8081 to be accessed on your machine if it + falls back to the Default receiver (see installation + + instructions for your platform).
    +
    + -c The + instrument is assumed to communicate through a USB or serial + communication port, and the port can be selected with the -c + option, if the instrument is not connected to the first port. If you + invoke dispcal so as to + display the usage information (i.e. "dispcal -?" or "dispcal --"), + then the discovered USB and serial ports will be listed. On + UNIX/Linux, a list of all possible serial ports are shown, but not + all of them may actually be present on your system.
    +
    + The -r and + -R flags + perform a quick measurement of current display behaviour, reports + and then exits. If the -r + flag is used the measurement are taken using the currently loaded + calibration (Video LUT) curves, and in the case of MadVR renderer + test patch display the Color Management 3dLut. If -R is use, then the uncalibrated + ("raw" or "native") behaviour is measured (ie. no VideoLut or CM). + Reported are:
    +
    +     Black Brightness in cd/m^2
    +     White Brightness in cd/m^2
    +     The approximate Gamma
    +     The white point x,y chromaticity co-ordinates
    +     The correlated color temperature in Kelvin, and + the CIEDE200 to the Black Body locus.
    +     The correlated Daylight temperature in Kelvin, + and the CIEDE200 to the Daylight locus.
    +     The visual color temperature in Kelvin, and the + CIEDE200 to the Black Body locus.
    +     The visual Daylight temperature in Kelvin, and + the CIEDE200 to the Daylight locus.
    +     The visual color temperature in Kelvin
    + (for -R "raw":)
    +     The apparent VideoLUT entry number of significant + bits.
    +
    + Note that the correlated color temperature is the temperature of a + black body radiator that has the closest color to the white point + measured using the traditional CIE 1960 UCS space color difference + formula. The correlated daylight temperature is a similar thing, + except the CIE daylight locus is used. The visual color temperature + values are calculated similarly to the correlated color + temperatures, but using the modern CIEDE2000 color difference + formula to calculate a better visual approximation to the closest + temperature to the displays white point. There will be no difference + between the UCS and CIEDE2000 temperatures if the display white + point actually lies on the particular locus.
    +
    + The -m + option skips the usual process of adjusting the display monitor + contrast, brightness and white point controls, and skips straight to + calibration.
    +
    + -o [profile.icm] Normally dispcal creates just a + calibration file, which can then be used for subsequent + characterization using dispread and + profiling using colprof. If the -o flag is used, dispcal will also create a + shaper/matrix profile. By default it will create a profile named inoutfile.icm, but a differently + named file can be created or updated by specifying the name after + the -o flag. If the -u flag is used with -o, then the ICC profile vcgt calibration curves will be + updated.
    +
    + Note that if VideoLUT access is not possible for the display, that + hardware calibration is not possible. dispcal will create + calibration curves anyway with a warning, and if a profile is + created, it will not contain a 'vcgt' tag, but instead will have the + calibration curves incorporated into the profile itself. If + calibration parameters are chosen that change the displays white + point or brightness, then this will result in a slightly unusual + profile that has a white point that does not correspond with + R=G=B=1.0. Some systems may not cope properly with this type of + profile. See the tutorial for a + further explanation.
    +
    + The -O parameter allows setting of the + shaper/matrix profile description tag. The parameter should be a + string that describes the device and profile. With most command line + shells, it will be necessary to enclose the parameter with double + quotes, so that spaces and other special characters are included in + the parameter, and not mistaken for the start of another flag, or as + a final command line parameter. Many programs that deal with ICC + profiles use the description tag to identify a profile, rather than + the profile filename, so using a descriptive string is important in + being able to find a profile. By default, the profile file name will + be used as the description.
    +
    + -u Normally + dispcal creates a new + calibration file and optional profile, based on the requested + targets and the response of the display. This can take a fair amount + of time, particularly if a high quality level has been selected, so + to speed up the process of keeping a display in calibration the -u flag can be used. This uses + the same calibration targets as the previous calibration but does a + smaller number of refinement passes, enough to improve the accuracy + of the calibration to account for drift in the device. If the -o flag is used as well, then + the ICC profile will have + its vcgt tag updated with the new calibration. This keeps the + profile up to date with the display. Normally dispcal -u will use the same + quality level that was specified in the previous calibration, but + this can be overridden using the -q + flag. Any options that attempt to change the calibration target (ie. + white point, brightness, gamma etc.) will be ignored. Adjustment of + the display monitor controls is skipped. A profile cannot be updated + if the display does not support hardware calibration (no VideoLUT + access).
    +
    +   Quality - Low, Medium (def), High. The -q flag determines how much time + and effort to go to in calibrating the display. The higher the + quality, the more test readings will be done, the more refinement + passes will be done, the tighter will be the accuracy tolerance, and + the more detailed will be the calibration of the display. The result + will ultimately be limited by the accuracy of the instrument, the + repeatability of the display and instrument, and the resolution of + the Video Lookup table entries and Digital or Analogue output + (RAMDAC).
    +
    + The -p flag + allows measuring in telephoto mode, using instruments that support + this mode, e.g. the ColorMunki. Telephoto mode is one for taking + emissive measurements from a distance (ie. telespectometer, + tele-colorimeter) mode, and typically would be used for measuring + projector type displays. If a device does not support a specific + telephoto mode, then the normal emissive mode may be suitable for + measuring projectors.
    +
    +   The -y + flag allows setting the Display Type. The selection typically + determines two aspects of of the instrument operation: 1) It may set the measuring mode + to suite refresh or non-refresh displays. + Typically only LCD (Liquid Crystal) displays have a non-refresh + nature. 2) It may select an + instrument calibration matrix suitable for a particular display + type. The selections available depends on the type and model of + instrument, and a list of the options for the discovered instruments + will be shown in the usage + information. For more details on what particular instruments support + and how this works, see Operation of + particular instruments. 3) Any installed CCSS files + (if applicable), or CCMX files. These files are typically created + using ccxxmake, and installed using oeminst. The default and Base Calibration + types will be indicated in the usage.
    +
    + -t Set the target white point + locus to the equivalent of a Daylight spectrum of the given + temperature in degrees Kelvin. By default the white point target + will be the native white of the display, and it's color temperature + and delta E to the daylight spectrum locus will be shown during + monitor adjustment, and adjustments will be recommended to put the + display white point directly on the Daylight locus. If a Daylight + color temperature is given as an argument to -t, then this will become the + target of the adjustment, and the recommended adjustments will be + those needed to make the monitor white point meet the target. + Typical  values might be 5000 for matching printed output, or + 6500, which gives a brighter, bluer look. A white point temperature + different to that native to the display may limit the maximum + brightness possible.
    +
    + -T  Same functionality as + the -t option, except the + white point locus will be the Black Body, or Planckian locus, rather + than the Daylight locus. While these two white point loci are quite + close, they are subtly different. If a temperature is given as an + argument, this will become the Black Body target temperature during + adjustment.
    +
    + -w  An + alternative to specifying a  white point target in Daylight or + Black Body degrees Kevin, is to specify it in chromaticity + co-ordinates. This allows the white point to be a color other than + one on the Daylight or Black Body. Note that the x,y numbers must be + specified as a single string (no space between the numbers and the + comma).
    +
    + -b  Set + the target brightness of white in cd/m^2. If this number cannot be + reached, the brightest output possible is chosen, consistent with + matching the white point target. Note that many of the instruments + are not particularly accurate when assessing the absolute display + brightness in cd/m^2. NOTE + that some LCD screens behave a little strangely near their absolute + white point, and may therefore exhibit odd behavior at values just + below white. It may be advisable in such cases to set a brightness + slightly less than the maximum such a display is capable of.
    +
    + -g gamma  +Set + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + the target response curve gamma. This is normally an exponential + curve (output = input ^gamma), and defaults to 2.4 on MSWindows and + Macintosh OS X 10.6 or latter and Linux/Unix (which is typical of a + CRT type displays real response), and 1.8 on a Macintosh (prior to + OS X 10.6). Four pre-defined curves can be used as well: the sRGB + colorspace response curve, which is an exponent curve with a + straight segment at the dark end and an overall response of + approximately gamma 2.2 (-gs), +the + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + L* curve, which is the response of the CIE L*a*b* perceptual + colorspace (-gl). the REC + 709 video standard response curve (-g709) + and the SMPTE 240M video standard response curve (-g240)
    +
    + Note that a real display + can't reproduce any of these ideal curves, since it will have a + non-zero black point, whereas all the ideal curves assume zero light + at zero input. In the case of a gamma curve target, dispcal uses an + actual technical power curve shape that aims for the same relative + output at 50% input as the ideal gamma power curve. To allow for the + non-zero black level of a real display, by default dispcal will offset the target + curve values so that zero input gives the actual black level of the + display (output offset). This ensures that the target curve better + corresponds to the typical natural behavior of displays, but it may + not be the most visually even progression from display minimum, but + this behavior can be changed using the -f option (see below).
    +
    + Also note that many color + spaces are encoded with, and labelled as having a gamma of + approximately 2.2 (ie. sRGB, + REC 709, SMPTE 240M, Macintosh OS X 10.6), but are actually intended + to be displayed on a display with a typical CRT gamma of 2.4 viewed in a darkened + environment. This is because this 2.2 + gamma is a source gamma encoding in bright viewing conditions such + as a television studio, while typical display viewing conditions are + quite dark by comparison, and a contrast expansion of (approx.) + gamma 1.1 is desirable to make the images look as intended. So if + you are displaying images encoded to the sRGB standard, or + displaying video through the calibration, just setting the gamma + curve to sRGB or REC 709 (respectively) is probably not what you want! What you + probably want to do, is to set the gamma curve to about gamma 2.4, + so that the contrast range is expanded appropriately, or alternatively + use sRGB or REC 709 or a gamm of 2.2 but also use the -a + parameter to specify the actual ambient viewing conditions, so that + dispcal can make an + appropriate contrast enhancement. If your instrument is capable of + measuring ambient light levels, then you can do so during the + interactive display control adjustment. See + <http://www.color.org/sRGB.xalter> for details of how sRGB is + intended to be used.
    +
    + It is hard to know whether Apple Macintosh computers prior to OS X + 10.6 should also have such an adjustment, since it is not really + possible to know whether colors labelled as being in such a + colorspace are actually encoded in that gamma with the expectation + that they will be displayed on a display with that actual response, + or whether they are intended to be displayed on a display that + contrast expands by a power 1.1.  Both situations might be the + case, depending on how source material is created!
    +
    + -G gamma  +As + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + explained above, the gamma value provided to the -g option is used to set and + actual response curve that makes an allowance for the non-zero black + of the actual display, and will have the same relative output at 50% + input as the ideal gamma power curve, and so best matches typical + expectations. The -G option + is an alternative that allows the actual + power to be specified instead, meaning that when combined with the + displays non-zero black value, the response at 50% input will + probably not match that of the ideal power curve with that gamma + value.
    +
    + -f [degree]: + As explained in for the -g + and -G options, real + displays do not have a zero black response, while all the target + response curves do, so this has to be allowed for in some way. The + default way of handling this (equivalent to -f 1.0)  is to + allow for this at the output of the ideal response curve, by + offsetting and scaling the output values. This defined a curve that will match the responses + that many other systems provide and may be a better match to the + natural response of the display, but will give a less visually even + response from black. The + other alternative is to offset and scale the input values into the + ideal response curve so that zero input gives the actual non-zero + display response. This ensures the most visually even progression + from display minimum, but might be hard to achieve since it is + different to the naturally response of a display. A subtlety is to + provide a split between how much of the offset is accounted for as + input to the ideal response curve, and how much is accounted for at + the output, and this can be done by providing a parameter -f degree, where the degree is + 0.0 accounts for it all as input offset, and 1.0 accounts for all of + it as output offset. If -f + is used without a specified degree, a degree of 0.0 is assumed, the + opposite of the default. Note + that using all input offset (degree == 0.0) is equivalent to the use + of the BT.1886 transfer + function.
    +
    + -a ambient: + As explained for the -g + parameter, often colors are encoded in a situation with viewing + conditions that are quite different to the viewing conditions of a + typical display, with the expectation that this difference in + viewing conditions will be allowed for in the way the display is + calibrated. The -a option + is a way of doing this. By default dispcal + will not make any allowances for viewing conditions, but will + calibrate to the specified response curve, but if the -a option is used, or the + ambient level is measured during the interactive display controls + portion of the calibration, an appropriate viewing conditions + adjustment will be performed. For a gamma value or sRGB, the + original viewing conditions will be assumed to be that of the sRGB + standard viewing conditions, while for REC 709 and SMPTE 240M they + will be assumed to be television studio viewing conditions. By + specifying or measuring the ambient lighting for your display, a + viewing conditions adjustment based on the CIECAM02 color appearance + model will be made for the brightness of  your display and the + contrast it makes with your ambient light levels.
    +
    + -k factor: + Normally this will be set automatically, based on the measured black + level of the display. A -k + factor of 1.0 will make all colors down the neutral axis (R=G=B) + have the same hue as the chosen white point. Near the black point, + red, green or blue can only be added, not subtracted from zero, so + the process of making the near black colors have the desired hue, + will lighten them to some + extent. For a device with a good contrast ratio or a black point + that has nearly the same hue as the white, this should not affect + the contrast ratio too severely. If the device contrast ratio is not + so good, and the native black hue is noticeably different to that of + the chosen white point (which is often the case for LCD type displays, or CRT type displays with one + channel which has a poor level of black), this could have a + noticeably detrimental effect on an already limited contrast ratio, + and result in a black that is not as good as it can be, and a lower + -k factor should be used. -k values can range between 0.0 + (no correction of black) to 1.0 (full correction of black). If less + than full correction is chosen, then the resulting calibration + curves will have the target white point down most of the curve, but + will then blend over to the native or compromise black point that is + blacker, but not of the right hue. The rate of this blend can be + controlled with the -A + parameter (see below). For applications where maximum contrast ratio + is important (such as Video), use -k0.
    +
    + -A rate:  +If + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + the black point is not being set completely to the same hue as the + white point (ie. because the -k + factor is less than 1.0), then the resulting calibration curves will + have the target white point down most of the curve, but will then + blend over to the native or compromise black point that is blacker, + but not of the right hue. The rate of this blend can be controlled + with the -A parameter. The + default value 4.0, which results in a target that switches from the + white point target to the black, moderately close to the black + point. While this typically gives a good visual result with the + target neutral hue being maintained to the point where the crossover + to the black hue is not visible, it may be asking too much of some + displays (typically LCD type displays), and there may be some visual + effects due to inconsistent color with viewing angle. For this + situation a smaller value may give a better visual result (e.g. try + values of 3.0 or 2.0. A value of 1.0 will set a pure linear blend + from white point to black point). If there is too much coloration + near black, try a larger value, e.g. 6.0 or 8.0.
    +
    + The -b flag forces source 0,0,0 to map + to destination 0,0,0. This may be useful with displays that have a + very dark black point, and with an instrument is unable to measure + it precisely, and where it is known in some other way that the + display is very well behaved from black (i.e. that it has no "dead + zone" above zero device input). Using this option with a display + that is not well behaved, may result in a loss of shadow detail. + This will override any -k factor.
    +
    + -B  Set + the target brightness of black in cd/m^2 (i.e. the absolute Y + value). Setting too high a value may give strange results as it + interacts with trying to achieve the target "advertised" gamma curve + shape. You could try using -f 1 if this causes a problem.
    +
    + -e [n] Run n verify passes on the final + curves. This is an extra set of instrument readings, that can be + used to estimate how well the device will match the targets with the + computed calibration curves. Note that the usefulness of the + verification is sometimes limited by the repeatability of the device + & instrument readings. This is often evident for CRT displays, + which (due to their refresh rate) flicker. More than one + verification pass can be done by providing the parameter n, and by then comparing the + successive verifications, some idea of the repeatability can be + ascertained. The verification uses a fixed number of semi-random + test values to test the calibration.
    +
    + -z Run + verify pass on the display as it is currently setup (currently + installed LUT curves). This will use the usual input parameters to + establish the expected (target) characteristic. Note that if the initial + calibration was modified due to it being out of gamut of the + display, verify will show the resulting discrepancy. You can use dispwin to load a .cal file into the display + before running dispcal -z. + Note that if you set an Ambient light level interactively during the + calibration, you need to enter the same number that was measured and + set using the -a parameter + for verify.
    +
    + The -P + parameter allows you to position and size the test patch window. By + default it is places in the center of the screen, and sized + appropriately for the type of instrument, or 10% of the width of the + display if the display size is unknown.. The ho and vo values govern the horizontal + and vertical offset respectively. A value of 0.0 positions the + window to the far left or top of the screen, a value of 0.5 + positions it in the center of the screen (the default), and 1.0 + positions it to the far right or bottom of the screen. If three + parameters are provided, then the ss + parameter is a scale factor for the test window size. A value of 0.5 + for instance, would produce a half sized window. A value of 2.0 will + produce a double size window. If four parameters are provided, then + the last two set independent horizontal and vertical scaling + factors. Note that the ho,vo,ss or ho,vo,hs,vs numbers must be + specified as a single string (no space between the numbers and the + comma). For example, to create a double sized test window at the top + right of the screen, use -P 1,0,2 + . To create a window twice as wide as high: -P 1,0,2,1.
    +
    + The -F + flag causes the while screen behind the test window to be masked + with black. This can aid black accuracy when measuring CRT displays + or projectors.
    +
    + The -E + flag causes the display test values to be scaled to the Video RGB + encoding range of (16-235)/255. This also modifies the resulting + calibration curve behavior downstream of dispcal. If a calibration + curve created using -E gets installed or converted to an ICC profile + 'vcgt' tag in the process of creating a profile in dispcal or + colprof, the incoming full range values will first have the + calibration curve applied and then be scaled to the Video encoding + range (16-235)/255.
    +
    + -n When + running on a UNIX based system that used the X11 Windowing System, dispcal + normally selects the override redirect so that the test window will + appear above any other windows on the display. On some systems this + can interfere with window manager operation, and the -n + option turns this behaviour off.
    +
    + The -J + option runs through the black and sensor relative calibration + routines for the Xrite DTP92 and DTP94 instruments, the black level + calibration for the Eye-One Display 1, and a CRT frequency + calibration for the Eye-One Display 2. For the black calibration the + instrument should be placed on an opaque, black surface, and any + stray light should be avoided by placing something opaque over the + instrument. If a Spectrolino is being used, then a white and black + calibration will always be performed before the instrument can be + placed on the display, unless the -N + flag is used. Generally it is not necessary to do a calibration + every time an instrument is used, just now and again. There is also + no point in doing  a CRT frequency calibration, as this will be + done automatically at the commencement of patch reading, and will be + lost between runs.
    +
    + -N Any + instrument that requires regular calibration will ask for + calibration on initial start-up. Sometimes this can be awkward if + the instrument is being mounted in some sort of measuring jig, or + annoying if several sets of readings are being taken in quick + succession. The -N + suppresses this initial calibration if a valid and not timed out + previous calibration is recorded in the instrument or on the host + computer. It is advisable to only use this option on the second and + subsequent measurements in a single session.
    +
    + The -H + option turns on high resolution spectral mode, if the instrument + supports it, such as the Eye-One Pro. See Operation of particular instruments + for more details. This may give better accuracy for display + measurements.
    +
    + The -X file.ccmx option reads + a Colorimeter Correction Matrix + from the given file, and applies it to the colorimeter instruments + readings. This can improve a colorimeters accuracy for a particular + type of display. A list of contributed ccmx files is here.
    +
    + The -X file.ccss option reads + a Colorimeter Calibration + Spectral Sample from the given file, and uses it to set the + colorimeter instruments calibration. This will only work with + colorimeters that rely on sensor spectral sensitivity calibration + information (ie. the X-Rite i1d3, + or the DataColor Spyder4).This +can +improve +a + + + + + + + + + - the black point is not being set completely to the same hue as the - white point (ie. because the -k - factor is less than 1.0), then the resulting calibration curves will - have the target white point down most of the curve, but will then - blend over to the native or compromise black point that is blacker, - but not of the right hue. The rate of this blend can be controlled - with the -A parameter. The - default value 4.0, which results in a target that switches from the - white point target to the black, moderately close to the black - point. While this typically gives a good visual result with the - target neutral hue being maintained to the point where the crossover - to the black hue is not visible, it may be asking too much of some - displays (typically LCD type displays), and there may be some visual - effects due to inconsistent color with viewing angle. For this - situation a smaller value may give a better visual result (e.g. try - values of 3.0 or 2.0. A value of 1.0 will set a pure linear blend - from white point to black point). If there is too much coloration - near black, try a larger value, e.g. 6.0 or 8.0.
    -
    - -B  Set - the target brightness of black in cd/m^2. Setting too high a value - may give strange results as it interacts with trying to achieve the - target "advertised" gamma curve shape. You could try using -f 1 if - this causes a problem.
    -
    - -e [n] Run n verify passes on the final - curves. This is an extra set of instrument readings, that can be - used to estimate how well the device will match the targets with the - computed calibration curves. Note that the usefulness of the - verification is sometimes limited by the repeatability of the device - & instrument readings. This is often evident for CRT displays, - which (due to their refresh rate) flicker. More than one - verification pass can be done by providing the parameter n, and by then comparing the - successive verifications, some idea of the repeatability can be - ascertained. The verification uses a fixed number of semi-random - test values to test the calibration.
    -
    - -z Run - verify pass on the display as it is currently setup (currently - installed LUT curves). This will use the usual input parameters to - establish the expected (target) characteristic. Note that if the initial - calibration was modified due to it being out of gamut of the - display, verify will show the resulting discrepancy. You can use dispwin to load a .cal file into the display - before running dispcal -z. - Note that if you set an Ambient light level interactively during the - calibration, you need to enter the same number that was measured and - set using the -a parameter - for verify.
    -
    - The -P - parameter allows you to position and size the test patch window. By - default it is places in the center of the screen, and sized - appropriately for the type of instrument. The ho and vo values govern the horizontal - and vertical offset respectively. A value of 0.0 positions the - window to the far left or top of the screen, a value of 0.5 - positions it in the center of the screen (the default), and 1.0 - positions it to the far right or bottom of the screen. If three - parameters are provided, then the ss - parameter is a scale factor for the test window size. A value of 0.5 - for instance, would produce a half sized window. A value of 2.0 will - produce a double size window. If four parameters are provided, then - the last two set independent horizontal and vertical scaling - factors. Note that the ho,vo,ss or ho,vo,hs,vs numbers must be - specified as a single string (no space between the numbers and the - comma). For example, to create a double sized test window at the top - right of the screen, use -P 1,0,2 - . To create a window twice as wide as high: -P 1,0,2,1.
    -
    - The -F - flag causes the while screen behind the test window to be masked - with black. This can aid black accuracy when measuring CRT displays - or projectors.
    -
    - The -E - flag causes the display test values to be scaled to the Video RGB - encoding range of (16-235)/255. This also modifies the resulting - calibration curve behavior downstream of dispcal. If a calibration - curve created using -E gets installed or converted to an ICC profile - 'vcgt' tag in the process of creating a profile in dispcal or - colprof, the incoming full range values will first have the - calibration curve applied and then be scaled to the Video encoding - range (16-235)/255.
    -
    - -n When - running on a UNIX based system that used the X11 Windowing System, dispcal - normally selects the override redirect so that the test window will - appear above any other windows on the display. On some systems this - can interfere with window manager operation, and the -n - option turns this behaviour off.
    -
    - The -J - option runs through the black and sensor relative calibration - routines for the Xrite DTP92 and DTP94 instruments, the black level - calibration for the Eye-One Display 1, and a CRT frequency - calibration for the Eye-One Display 2. For the black calibration the - instrument should be placed on an opaque, black surface, and any - stray light should be avoided by placing something opaque over the - instrument. If a Spectrolino is being used, then a white and black - calibration will always be performed before the instrument can be - placed on the display, unless the -N - flag is used. Generally it is not necessary to do a calibration - every time an instrument is used, just now and again. There is also - no point in doing  a CRT frequency calibration, as this will be - done automatically at the commencement of patch reading, and will be - lost between runs.
    -
    - -N Any - instrument that requires regular calibration will ask for - calibration on initial start-up. Sometimes this can be awkward if - the instrument is being mounted in some sort of measuring jig, or - annoying if several sets of readings are being taken in quick - succession. The -N - suppresses this initial calibration if a valid and not timed out - previous calibration is recorded in the instrument or on the host - computer. It is advisable to only use this option on the second and - subsequent measurements in a single session.
    -
    - The -H - option turns on high resolution spectral mode, if the instrument - supports it, such as the Eye-One Pro. See Operation of particular instruments - for more details. This may give better accuracy for display - measurements.
    -
    - The -X file.ccmx option reads - a Colorimeter Correction Matrix - from the given file, and applies it to the colorimeter instruments - readings. This can improve a colorimeters accuracy for a particular - type of display. A list of contributed ccmx files is here.
    -
    - The -X file.ccss option reads - a Colorimeter Calibration - Spectral Sample from the given file, and uses it to set the - colorimeter instruments calibration. This will only work with - colorimeters that rely on sensor spectral sensitivity calibration - information (ie. the X-Rite i1d3, - or the DataColor Spyder4).This -can -improve -a @@ -2494,481 +3124,482 @@ a - colorimeters accuracy for a particular type of display.
    -
    - The -Q flag allows specifying a tristimulus - observer, and is used to compute PCS (Profile Connection Space) - tristimulus values from spectral readings or using a colorimeter - that has CCSS capability. The following choices are available:
    -   1931_2 selects the standard CIE 1931 2 degree - observer. The default.
    -   1964_10 selects the standard CIE 1964 10 degree - observer.
    -   1955_2 selects the Stiles and Birch 1955 2 degree - observer
    -   1978_2 selects the Judd and Voss 1978 2 degree - observer
    -   shaw selects the Shaw and Fairchild 1997 2 degree - observer
    -   1964_10c selects a version of the CIE 1964 10 degree - observer that has been adjusted using a 3x3 matrix to better agree - with the 1931 2 degree observer.
    -
    - NOTE that if you select - anything other than the default 1931 2 degree observer, that the Y - values will not be cd/m^2, due to the Y curve not being the CIE 1924 - photopic V(λ) luminosity function.
    -
    - The -I b|w options invoke - instrument black level, and display white level compensation - (respectively). Instrument black level drift compensation attempts - to combat instrument black calibration drift by using a display - black test patch as a reference. If an instrument is not - acclimatised sufficiently to the measurement conditions, changes in - temperature can affect the black readings. Display white level drift - compensation attempts to combat changes in display brightness as it - warms up by measuring a white patch every so often, and using it to - normalise all the other readings. If just instrument black drift - compensation is needed, use -Ib. - If just display white level compensation is needed, use -Iw. If both are needed, use -Ibw or -Iwb.
    -
    - The -Y R:rate - options overrides calibration of the instrument refresh rate. This - may be useful if the instrument supports this function and the - refresh rate cannot be accurately calibrated from the display - itself.
    -
    - The -Y A - option uses a non-adaptive integration time emission measurement - mode, if the instrument supports it, such as the Eye-One Pro or - ColorMunki. By default an adaptive integration time measurement mode - will be used for emission measurements, but some instruments support - a fixed integration time mode that can be used with display devices. - This may give increased consistency and faster measurement times, - but may also give less accurate low level readings.
    -
    - The -Y p - option skips asking the user to place the instrument on the display. - Normally a grey patch is displayed, and then the user is asked to - confirm that the instrument is in place, so that readings can - commence. This flag disables that check. This may be useful in - automating certain operations.
    -
    - The -C "command" option allows a - method of relaying each test value to some other display than that - on the system running dispcal (for instance, a photo frame, PDA - screen etc.), by causing the given command to be invoked to the - shell, with six arguments. The first three arguments are the RGB - test color as integers in the range 0 to 255, the second three - parameters are the RGB test color as floating point numbers in the - range 0.0 to 1.0. The script or tool should relay the given color to - the screen in some manner (e.g. by generating a raster file of the - given color and sending it to the display being profiled), before - returning. Note that a test window will also be created on the - system running dispread.
    -
    - The -M "command" option allows a - method of gathering each test value from some external source, such - as an instrument that is not directly supported by Argyll. The given - command is involked to the shell, with six arguments. The first - three arguments are the RGB test color as integers in the range 0 to - 255, the second three parameters are the RGB test color as floating - point numbers in the range 0.0 to 1.0. The script or tool should - create a file called "command.meas" - that contains the XYZ values for the given RGB (or measured from the - test window) in cd/m^2 as three numbers separated by spaces, before - returning. If the command returns a non-zero return value, dispcal - will abort. Note that a test window will also be created on the - system running dispcal.
    -
    - The -W n|h|x - parameter overrides the default serial communications flow control - setting. The value n turns - all flow control off, h - sets hardware handshaking, and x - sets Xon/Xoff handshaking. This commend may be useful in workaround - serial communications issues with some systems and cables.
    -
    - The -D flag causes communications and other - instrument diagnostics to be printed to stdout. A level can be set - between 1 .. 9, that may give progressively more verbose - information, depending on the instrument. This can be useful in - tracking down why an instrument can't connect.
    -
    - inoutfile - The final parameter on the command line is the base filename for the - .cal file and the optional ICC - profile. Normally this will be created (or an existing file will be - overwritten). If the -u - flag is used, then these files will be updated. If a different ICC - profile name needs to be specified, do so as an argument to the -o flag.
    -
    - NOTE that on an X11 system, - if the environment variable ARGYLL_IGNORE_XRANDR1_2 - is set (ie. set it to "yes"), then the presence of the XRandR 1.2 - extension will be ignored, and other extensions such as Xinerama and - XF86VidMode extension will be used. This may be a way to work around - buggy XRandR 1.2 implementations.
    -
    -
    -

    Discussion and guide to display control - adjustment:

    -
    - The adjustment of the display controls (brightness, contrast, R, G - & B channel controls etc.) is very dependent on the particular - monitor. Different types and brands of monitors will have different - controls, or controls that operate in different ways. Some displays - have almost no user controls, and so you may well be best skipping - display adjustment, and going straight to calibration.
    -
    - Almost all LCD displays lack a real contrast control. Those that do present such a - control generally fake it by adjusting the video signal. For this - reason it is usually best to set an LCD's contrast control at its neutral setting (ie. the - setting at which it doesn't change the video signal). Unfortunately, - it can be hard to know what this neutral setting is. On some - displays it is 50%, others 75%. If the LCD display has a "reset to - factory defaults" mode, then try using this first, as a way of - setting the contrast - control to neutral. The LCD brightness - control generally adjusts the level of backlighting the display - gets, which affects the maximum brightness, and also tends to raise - or lower the black level in proportion, without changing the - displays response curve shape or overall contrast ratio. If your LCD - display has a backlight - control as well as a brightness - control, then the brightness control is also probably being faked, - and you are probably better off setting it to it's neutral setting, - and using the backlight - control in place of brightness - in the following adjustments.
    -
    - Some high end displays have the ability to mimic various standard - colorspaces such as sRGB or AdobeRGB. You could choose to calibrate - and profile the display in such an emulation mode, although you - probably don't want to fight the emulations white point and gamma. - To get the best out of such a display you really want to choose it's - "Native Gamut" setting, whatever that is called. Note that some - people have reported bad experiences in trying to use "6-axis custom - controls" on displays such as the Dell U2410, so attempting to use - such a mode should be approached with caution. Ideally such a mode - should be used to give just the underlying native display response, - but the settings to achieve this may be very difficult to determine, - and/or it may not be possible, depending on how such a mode distorts - the RGB signals.
    -
    - On CRT based displays, the brightness - control generally adjusts the black level of the display (sometimes - called the offset), and as - a side effect, tends to change the maximum brightness too. A CRT contrast control generally - adjusts the maximum brightness (sometimes called gain) without affecting the - black level a great deal. On a CRT both the brightness and contrast controls will tend to - affect the shape or gamma of the display response curve.
    -
    - Many displays have some sort of color temperature adjustment. This - may be in the form of some pre-set color temperatures, or in the - form of individual Red, Green and Blue channel gain adjustments. - Some CRT displays also have R, G & B channel offset adjustments - that will affect the color temperatures near black, as well as - affect the individual channels curve shape. The color temperature - adjustment will generally affect the maximum brightness, and may - also affect the black level and the shape of the display response - curves.
    -
    - Some special (expensive) LCD displays may have a white point - adjustment that changes the color of the backlight. If you do not - have one of these types of LCD displays, then attempting to change - the white point of the display (even if it appears to have a "white point selection" or R/G/B "gain" controls") may not be a good idea, as once - again these controls are probably being faked by manipulating the - signal levels. Even if you do manage to change the white point - significantly, it may do things like change the mid tone color too - dramatically, or create a display response that is hard to correct - with calibration, or results in side effects such as quantization - (banding) or other undesirable effects. You may have to try out - various controls (and your aim points for the display calibration), - to decide what is reasonable to attempt on an LCD display.
    -
    - Due to the variety of controls as well as the interaction between - them, it can be an iterative process to arrive at a good monitor - set-up, before proceeding on to calibrating and profiling a display. - For this reason, dispcal - offers a menu of adjustment modes, so that the user can - interactively and iteratively adjust the display controls to meet - the desired targets.
    -
    -   1) Black level (CRT: Brightness)
    -   2) White point (Color temperature, R,G,B, Gain/Contrast)
    -   3) White level (CRT: Gain/Contrast, LCD: - Brightness/Backlight)
    -   4) Black point (R,G,B, Offset/Brightness)
    -   5) Check all
    -   6) Measure and set ambient for viewing condition adjustment
    -   7) Continue on to calibration
    -   8) Exit
    -
    - There are four basic adjustment modes. Normally one would proceed - through them in the order above, then perhaps repeat the first - adjustment, before checking the overall settings. The White point - and White level modes operate slightly differently, depending on - whether a white target point has been set using the -t -T or -w options, and on whether a - brightness target has been set using the -b option.
    -
    -
    - The first mode lets you adjust the black level of a CRT display. - Given the current white level, it calculates a value that should - produce a 1% display brightness if the black level is set correctly. - After doing some initial measurements, it will show the target - brightness value (in cd/m^2) on one line, and then underneath it - will show continuously updated readings from the display. The left - most character will switch from '\' to '/' or back again each time a - reading is updated. Some instruments can be quite slow in measuring - dark colors, and it's best to wait for a reading update before - changing the controls more than once. Underneath the target value is - displayed the current reading, and to the right of this is a '+', - '-' or '=' symbol, which gives a hint as to which way to adjust the - brightness control to improve the match to the target.
    -
    -   Adjust CRT brightness to get target level. - Press space when done.
    -      Target - 0.60
    -   / Current 0.68  - -
    -
    - Once happy with the adjustment, press space to go back to the menu.
    -
    -
    - The second mode lets you adjust the color of the white point of the - display. If a target white point has been set, it will show the - target brightness value (in cd/m^2) on one line, together with the - target chromaticity co-ordinates for the white point, and then - underneath it will show continuously updated readings from the - display. The left most character will switch from '\' to '/' or back - again each time a reading is updated. Underneath the target - brightness value is displayed the current reading, and then the - current chromaticity co-ordinate values. To the right of this is the - current delta E of the white point from the target, and further to - the right are hints '+', '-' or '='  as to which direction to - adjust the individual Red, Green and Blue gain settings to move the - white point in the direction of the target, and reduce the delta E. - If the symbol is doubled, then this channel will have the greatest - effect. If you do not have individual channel gain controls, then - try choosing amongst color temperature pre-sets, to find one with - the lowest delta E. Depending on the stability of the display, the - coarseness of the controls, and the repeatability of the instrument, - you may not be able to get a perfectly zero delta E.
    -
    -    Adjust R,G & B gain to get - target x,y. Press space when done.
    -      Target B 60.00, x 0.3451, y 0.3516
    -   / Current B 60.05, x 0.3426, y 0.3506  DE  - 1.4  R+  G+  B--
    -
    - If you did not set a white point target, then the information shown - is a little different - it will show the initial white point value, - as well as the color temperature, and the CIEDE2000 of the white - point to either the Daylight or Black Body locus (depending on - whether the -T flag was - set). The constantly updated values show the same thing, and the - Red, Green and Blue control hints show the direction to adjust the - controls to place the white point on the locus. The control that - will have the most direct effect on the color temperature will be - the Blue, while the Green will most directly move the white point - towards or away from the locus, thereby reducing the delta E of the - white point to the locus (but there is interaction).
    -
    - Adjust R,G & B gain to desired white point. - Press space when done.
    -   Initial B 47.25, x - 0.3417, y 0.3456, CDT 5113 DE  6.9
    - \ Current B 47.38, x 0.3420, - y 0.3460  CDT 5104 DE  6.7  R-- G+  B-
    -
    -  The brightness value is just there as a guide to what effect - the adjustment is having on the overall brightness. Usually the - white level brightness is adjusted using the next adjustment mode. - Once happy with the adjustment, press space to go back to the menu.
    -
    -
    - The third mode lets you adjust the brightness of white on the - display. If you set a target brightness using the -b - parameter, it will show the target brightness value (in cd/m^2) on - one line, and then underneath it will show continuously updated - readings from the display. The left most character will switch from - '\' to '/' or back again each time a reading is updated. Underneath - the target value is displayed the current reading, and to the right - of this is a '+', '-' or '=' symbol, which gives a hint as to which - way to adjust the CRT contrast or LCD brightness control to improve - the match to the target.
    -
    -    Adjust CRT Contrast or LCD - Brightness to get target level. Press space when done.
    -      Target 60.00
    -   / Current 59.96  +
    -
    - If you did not set a brightness target, it will show the initial - brightness as the target, and the current brightness, which you can - then set any way you want:
    -
    - Adjust CRT Contrast or LCD Brightness to desired - level. Press space when done.
    -   Initial 47.32
    - / Current 47.54
    -
    - Once happy with the adjustment, press space to go back to the menu.
    -
    -
    - The fourth mode lets you adjust the color of the black point of the - display, if the display has Red, Green and Blue channel offset - controls. It will show the target 1% brightness value (in cd/m^2) on - one line, together with the target chromaticity co-ordinates for the - black point, and then underneath it will show continuously updated - readings from the display. The left most character will switch from - '\' to '/' or back again each time a reading is updated. Underneath - the target brightness value is displayed the current reading, and - then the current chromaticity co-ordinate values. To the right of - this is the current delta E of the black point from the target, and - further to the right are hints '+', '-' or '='  as to which - direction to adjust the individual Red, Green and Blue offset - settings to move the black point in the right direction. If the - symbol is doubled, then this channel will have the greatest effect. -
    -
    -   Adjust R,G & B offsets to get target x,y. - Press space when done.
    -      Target B 0.60, x 0.3451, y 0.3516
    -   \ Current B 0.62, x 0.2782, y 0.2331  DE  - 10.3  R+  G++ B-
    -
    - The 1%  brightness value is just there as a guide to what - effect the adjustment is having on the 1% brightness level. The - combined channel offsets may have an effect on this in combination - with the CRT brightness control. Press space to go back to the menu.
    -
    -
    - The fifth selection checks on the overall settings.  If targets - have been set, it will be like:
    -
    -   Target Brightness = 50.00, Current = 47.44, - error = -5.1%
    -   Target 50% Level  = 10.32, Current =  8.10, - error = -4.4%
    -   Target Near Black =  0.47, Current =  0.68, - error =  0.4%
    -   Target white = x 0.3458, y 0.3586, Current = x 0.3420, y - 0.3454, error =  7.55 DE
    -   Target black = x 0.3458, y 0.3586, Current = x 0.2908, y - 0.2270, error = 29.69 DE
    -
    - or if no targets are set:
    -
    -   Current Brightness = 46.28
    -   Target 50% - Level  = 10.07, Current =  7.52, error = -5.5%
    -   Target Near Black - =  0.46, Current =  0.46, error = -0.0%
    -   Current white = x - 0.3439, y 0.3466, VCT 5098K DE  3.0
    -   Target black = x - 0.3439, y 0.3466, Current = x 0.3093, y 0.2165, error = 30.30 DE
    -
    - and will then go back to the menu.
    -
    - The sixth selection 6) - allows the reading of you ambient lighting conditions if your - instrument supports such a mode. Doing so will enable the -a option to compensate for your - viewing conditions in the subsequent calibration. See -a.
    -
    - Once  you're happy with the display set-up, you can either - proceed on to the rest of the calibration by selecting 7), or exit and re-start by - selecting 8). You might - want to re-start if you want to change the calibration targets.
    -
    -
    -

    Other caveats:

    - NOTE that some LCD screens - behave a little strangely near their absolute white point, and may - therefore exhibit odd behavior at values just below white. It may be - advisable in such cases to set a brightness slightly less than the - maximum such a display is capable of.
    -
    - The program attempts to stop any screensaver or powersaver from - interfering with the measurements, but this may not be effective on - some systems, so it may be necessary to manually disable the - screensaver and/or powersaver before commencing the calibration with - a large number of patches.
    -
    - The calibration tables produced maintain the maximum level of - precision available on a system. If the display has VideoLUTs - available (Video Lookup Tables that the frame buffer values pass - through on their way to the display) and thier outputs are better - than 8 bits per component, then the resulting curves can reflect - this, although few current operating systems and/or display cards - actually support better than 8 bit per component output.
    -
    - If calibration curves are created for a display in which VideoLUTs - are not available, then the resulting calibration file will be - marked to indicate this, and a subsequent profile created with the - calibration will not have the calibration converted to the 'vcgt' - tag, since such a tag can't be loaded into the displays VideoLUTs.
    -
    - If communications break down with a USB connected instrument, you - may have to unplug it, and plug it in again to recover operation.
    -
    - Some systems (Apple OSX in particular) have a special set of user - interface controls ("Universal Access") that allows altering the - display in ways designed to assist visually impaired users, by - increasing contrast etc. This will interfere badly with any attempts - to calibrate or profile such a system, and must be turned off in - order to do so. Note that certain magic keyboard sequences can turn - this on by accident.
    -
    -
    -
    -
    -
    - - + + colorimeters accuracy for a particular type of display.
    +
    + The -Q flag allows specifying a tristimulus + observer, and is used to compute PCS (Profile Connection Space) + tristimulus values from spectral readings or using a colorimeter + that has CCSS capability. The following choices are available:
    +   1931_2 selects the standard CIE 1931 2 degree + observer. The default.
    +   1964_10 selects the standard CIE 1964 10 degree + observer.
    +   1955_2 selects the Stiles and Birch 1955 2 degree + observer
    +   1978_2 selects the Judd and Voss 1978 2 degree + observer
    +   shaw selects the Shaw and Fairchild 1997 2 degree + observer
    +   1964_10c selects a version of the CIE 1964 10 degree + observer that has been adjusted using a 3x3 matrix to better agree + with the 1931 2 degree observer.
    +
    + NOTE that if you select + anything other than the default 1931 2 degree observer, that the Y + values will not be cd/m^2, due to the Y curve not being the CIE 1924 + photopic V(λ) luminosity function.
    +
    + The -I b|w options invoke + instrument black level, and display white level compensation + (respectively). Instrument black level drift compensation attempts + to combat instrument black calibration drift by using a display + black test patch as a reference. If an instrument is not + acclimatised sufficiently to the measurement conditions, changes in + temperature can affect the black readings. Display white level drift + compensation attempts to combat changes in display brightness as it + warms up by measuring a white patch every so often, and using it to + normalise all the other readings. If just instrument black drift + compensation is needed, use -Ib. + If just display white level compensation is needed, use -Iw. If both are needed, use -Ibw or -Iwb.
    +
    + The -Y R:rate + options overrides calibration of the instrument refresh rate. This + may be useful if the instrument supports this function and the + refresh rate cannot be accurately calibrated from the display + itself.
    +
    + The -Y A + option uses a non-adaptive integration time emission measurement + mode, if the instrument supports it, such as the Eye-One Pro, + ColorMunki, i1d3 and K10. By default an adaptive integration time + measurement mode will be used for emission measurements, but some + instruments support a fixed integration time mode that can be used + with display devices. This may give faster measurement times, but + may also give less accurate low level readings.
    +
    + The -Y p + option skips asking the user to place the instrument on the display. + Normally a grey patch is displayed, and then the user is asked to + confirm that the instrument is in place, so that readings can + commence. This flag disables that check. This may be useful in + automating certain operations.
    +
    + The -C "command" option allows a + method of relaying each test value to some other display than that + on the system running dispcal (for instance, a photo frame, PDA + screen etc.), by causing the given command to be invoked to the + shell, with six arguments. The first three arguments are the RGB + test color as integers in the range 0 to 255, the second three + parameters are the RGB test color as floating point numbers in the + range 0.0 to 1.0. The script or tool should relay the given color to + the screen in some manner (e.g. by generating a raster file of the + given color and sending it to the display being profiled), before + returning. Note that a test window will also be created on the + system running dispread.
    +
    + The -M "command" option allows a + method of gathering each test value from some external source, such + as an instrument that is not directly supported by Argyll. The given + command is involked to the shell, with six arguments. The first + three arguments are the RGB test color as integers in the range 0 to + 255, the second three parameters are the RGB test color as floating + point numbers in the range 0.0 to 1.0. The script or tool should + create a file called "command.meas" + that contains the XYZ values for the given RGB (or measured from the + test window) in cd/m^2 as three numbers separated by spaces, before + returning. If the command returns a non-zero return value, dispcal + will abort. Note that a test window will also be created on the + system running dispcal.
    +
    + The -W n|h|x + parameter overrides the default serial communications flow control + setting. The value n turns + all flow control off, h + sets hardware handshaking, and x + sets Xon/Xoff handshaking. This commend may be useful in workaround + serial communications issues with some systems and cables.
    +
    + The -D flag causes communications and other + instrument diagnostics to be printed to stdout. A level can be set + between 1 .. 9, that may give progressively more verbose + information, depending on the instrument. This can be useful in + tracking down why an instrument can't connect.
    +
    + inoutfile + The final parameter on the command line is the base filename for the + .cal file and the optional ICC + profile. Normally this will be created (or an existing file will be + overwritten). If the -u + flag is used, then these files will be updated. If a different ICC + profile name needs to be specified, do so as an argument to the -o flag.
    +
    + NOTE that on an X11 system, + if the environment variable ARGYLL_IGNORE_XRANDR1_2 + is set (ie. set it to "yes"), then the presence of the XRandR 1.2 + extension will be ignored, and other extensions such as Xinerama and + XF86VidMode extension will be used. This may be a way to work around + buggy XRandR 1.2 implementations.
    +
    +
    +

    Discussion and guide to display control + adjustment:

    +
    + The adjustment of the display controls (brightness, contrast, R, G + & B channel controls etc.) is very dependent on the particular + monitor. Different types and brands of monitors will have different + controls, or controls that operate in different ways. Some displays + have almost no user controls, and so you may well be best skipping + display adjustment, and going straight to calibration.
    +
    + Almost all LCD displays lack a real contrast control. Those that do present such a + control generally fake it by adjusting the video signal. For this + reason it is usually best to set an LCD's contrast control at its neutral setting (ie. the + setting at which it doesn't change the video signal). Unfortunately, + it can be hard to know what this neutral setting is. On some + displays it is 50%, others 75%. If the LCD display has a "reset to + factory defaults" mode, then try using this first, as a way of + setting the contrast + control to neutral. The LCD brightness + control generally adjusts the level of backlighting the display + gets, which affects the maximum brightness, and also tends to raise + or lower the black level in proportion, without changing the + displays response curve shape or overall contrast ratio. If your LCD + display has a backlight + control as well as a brightness + control, then the brightness control is also probably being faked, + and you are probably better off setting it to it's neutral setting, + and using the backlight + control in place of brightness + in the following adjustments.
    +
    + Some high end displays have the ability to mimic various standard + colorspaces such as sRGB or AdobeRGB. You could choose to calibrate + and profile the display in such an emulation mode, although you + probably don't want to fight the emulations white point and gamma. + To get the best out of such a display you really want to choose it's + "Native Gamut" setting, whatever that is called. Note that some + people have reported bad experiences in trying to use "6-axis custom + controls" on displays such as the Dell U2410, so attempting to use + such a mode should be approached with caution. Ideally such a mode + should be used to give just the underlying native display response, + but the settings to achieve this may be very difficult to determine, + and/or it may not be possible, depending on how such a mode distorts + the RGB signals.
    +
    + On CRT based displays, the brightness + control generally adjusts the black level of the display (sometimes + called the offset), and as + a side effect, tends to change the maximum brightness too. A CRT contrast control generally + adjusts the maximum brightness (sometimes called gain) without affecting the + black level a great deal. On a CRT both the brightness and contrast controls will tend to + affect the shape or gamma of the display response curve.
    +
    + Many displays have some sort of color temperature adjustment. This + may be in the form of some pre-set color temperatures, or in the + form of individual Red, Green and Blue channel gain adjustments. + Some CRT displays also have R, G & B channel offset adjustments + that will affect the color temperatures near black, as well as + affect the individual channels curve shape. The color temperature + adjustment will generally affect the maximum brightness, and may + also affect the black level and the shape of the display response + curves.
    +
    + Some special (expensive) LCD displays may have a white point + adjustment that changes the color of the backlight. If you do not + have one of these types of LCD displays, then attempting to change + the white point of the display (even if it appears to have a "white point selection" or R/G/B "gain" controls") may not be a good idea, as once + again these controls are probably being faked by manipulating the + signal levels. Even if you do manage to change the white point + significantly, it may do things like change the mid tone color too + dramatically, or create a display response that is hard to correct + with calibration, or results in side effects such as quantization + (banding) or other undesirable effects. You may have to try out + various controls (and your aim points for the display calibration), + to decide what is reasonable to attempt on an LCD display.
    +
    + Due to the variety of controls as well as the interaction between + them, it can be an iterative process to arrive at a good monitor + set-up, before proceeding on to calibrating and profiling a display. + For this reason, dispcal + offers a menu of adjustment modes, so that the user can + interactively and iteratively adjust the display controls to meet + the desired targets.
    +
    +   1) Black level (CRT: Brightness)
    +   2) White point (Color temperature, R,G,B, Gain/Contrast)
    +   3) White level (CRT: Gain/Contrast, LCD: + Brightness/Backlight)
    +   4) Black point (R,G,B, Offset/Brightness)
    +   5) Check all
    +   6) Measure and set ambient for viewing condition adjustment
    +   7) Continue on to calibration
    +   8) Exit
    +
    + There are four basic adjustment modes. Normally one would proceed + through them in the order above, then perhaps repeat the first + adjustment, before checking the overall settings. The White point + and White level modes operate slightly differently, depending on + whether a white target point has been set using the -t -T or -w options, and on whether a + brightness target has been set using the -b option.
    +
    +
    + The first mode lets you adjust the black level of a CRT display. + Given the current white level, it calculates a value that should + produce a 1% display brightness if the black level is set correctly. + After doing some initial measurements, it will show the target + brightness value (in cd/m^2) on one line, and then underneath it + will show continuously updated readings from the display. The left + most character will switch from '\' to '/' or back again each time a + reading is updated. Some instruments can be quite slow in measuring + dark colors, and it's best to wait for a reading update before + changing the controls more than once. Underneath the target value is + displayed the current reading, and to the right of this is a '+', + '-' or '=' symbol, which gives a hint as to which way to adjust the + brightness control to improve the match to the target.
    +
    +   Adjust CRT brightness to get target level. + Press space when done.
    +      Target + 0.60
    +   / Current 0.68  + -
    +
    + Once happy with the adjustment, press space to go back to the menu.
    +
    +
    + The second mode lets you adjust the color of the white point of the + display. If a target white point has been set, it will show the + target brightness value (in cd/m^2) on one line, together with the + target chromaticity co-ordinates for the white point, and then + underneath it will show continuously updated readings from the + display. The left most character will switch from '\' to '/' or back + again each time a reading is updated. Underneath the target + brightness value is displayed the current reading, and then the + current chromaticity co-ordinate values. To the right of this is the + current delta E of the white point from the target, and further to + the right are hints '+', '-' or '='  as to which direction to + adjust the individual Red, Green and Blue gain settings to move the + white point in the direction of the target, and reduce the delta E. + If the symbol is doubled, then this channel will have the greatest + effect. If you do not have individual channel gain controls, then + try choosing amongst color temperature pre-sets, to find one with + the lowest delta E. Depending on the stability of the display, the + coarseness of the controls, and the repeatability of the instrument, + you may not be able to get a perfectly zero delta E.
    +
    +    Adjust R,G & B gain to get + target x,y. Press space when done.
    +      Target B 60.00, x 0.3451, y 0.3516
    +   / Current B 60.05, x 0.3426, y 0.3506  DE  + 1.4  R+  G+  B--
    +
    + If you did not set a white point target, then the information shown + is a little different - it will show the initial white point value, + as well as the color temperature, and the CIEDE2000 of the white + point to either the Daylight or Black Body locus (depending on + whether the -T flag was + set). The constantly updated values show the same thing, and the + Red, Green and Blue control hints show the direction to adjust the + controls to place the white point on the locus. The control that + will have the most direct effect on the color temperature will be + the Blue, while the Green will most directly move the white point + towards or away from the locus, thereby reducing the delta E of the + white point to the locus (but there is interaction).
    +
    + Adjust R,G & B gain to desired white point. + Press space when done.
    +   Initial B 47.25, x + 0.3417, y 0.3456, CDT 5113 DE  6.9
    + \ Current B 47.38, x 0.3420, + y 0.3460  CDT 5104 DE  6.7  R-- G+  B-
    +
    +  The brightness value is just there as a guide to what effect + the adjustment is having on the overall brightness. Usually the + white level brightness is adjusted using the next adjustment mode. + Once happy with the adjustment, press space to go back to the menu.
    +
    +
    + The third mode lets you adjust the brightness of white on the + display. If you set a target brightness using the -b + parameter, it will show the target brightness value (in cd/m^2) on + one line, and then underneath it will show continuously updated + readings from the display. The left most character will switch from + '\' to '/' or back again each time a reading is updated. Underneath + the target value is displayed the current reading, and to the right + of this is a '+', '-' or '=' symbol, which gives a hint as to which + way to adjust the CRT contrast or LCD brightness control to improve + the match to the target.
    +
    +    Adjust CRT Contrast or LCD + Brightness to get target level. Press space when done.
    +      Target 60.00
    +   / Current 59.96  +
    +
    + If you did not set a brightness target, it will show the initial + brightness as the target, and the current brightness, which you can + then set any way you want:
    +
    + Adjust CRT Contrast or LCD Brightness to desired + level. Press space when done.
    +   Initial 47.32
    + / Current 47.54
    +
    + Once happy with the adjustment, press space to go back to the menu.
    +
    +
    + The fourth mode lets you adjust the color of the black point of the + display, if the display has Red, Green and Blue channel offset + controls. It will show the target 1% brightness value (in cd/m^2) on + one line, together with the target chromaticity co-ordinates for the + black point, and then underneath it will show continuously updated + readings from the display. The left most character will switch from + '\' to '/' or back again each time a reading is updated. Underneath + the target brightness value is displayed the current reading, and + then the current chromaticity co-ordinate values. To the right of + this is the current delta E of the black point from the target, and + further to the right are hints '+', '-' or '='  as to which + direction to adjust the individual Red, Green and Blue offset + settings to move the black point in the right direction. If the + symbol is doubled, then this channel will have the greatest effect. +
    +
    +   Adjust R,G & B offsets to get target x,y. + Press space when done.
    +      Target B 0.60, x 0.3451, y 0.3516
    +   \ Current B 0.62, x 0.2782, y 0.2331  DE  + 10.3  R+  G++ B-
    +
    + The 1%  brightness value is just there as a guide to what + effect the adjustment is having on the 1% brightness level. The + combined channel offsets may have an effect on this in combination + with the CRT brightness control. Press space to go back to the menu.
    +
    +
    + The fifth selection checks on the overall settings.  If targets + have been set, it will be like:
    +
    +   Target Brightness = 50.00, Current = 47.44, + error = -5.1%
    +   Target 50% Level  = 10.32, Current =  8.10, + error = -4.4%
    +   Target Near Black =  0.47, Current =  0.68, + error =  0.4%
    +   Target white = x 0.3458, y 0.3586, Current = x 0.3420, y + 0.3454, error =  7.55 DE
    +   Target black = x 0.3458, y 0.3586, Current = x 0.2908, y + 0.2270, error = 29.69 DE
    +
    + or if no targets are set:
    +
    +   Current Brightness = 46.28
    +   Target 50% + Level  = 10.07, Current =  7.52, error = -5.5%
    +   Target Near Black + =  0.46, Current =  0.46, error = -0.0%
    +   Current white = x + 0.3439, y 0.3466, VCT 5098K DE  3.0
    +   Target black = x + 0.3439, y 0.3466, Current = x 0.3093, y 0.2165, error = 30.30 DE
    +
    + and will then go back to the menu.
    +
    + The sixth selection 6) + allows the reading of you ambient lighting conditions if your + instrument supports such a mode. Doing so will enable the -a option to compensate for your + viewing conditions in the subsequent calibration. See -a.
    +
    + Once  you're happy with the display set-up, you can either + proceed on to the rest of the calibration by selecting 7), or exit and re-start by + selecting 8). You might + want to re-start if you want to change the calibration targets.
    +
    +
    +

    Other caveats:

    + NOTE that some LCD screens + behave a little strangely near their absolute white point, and may + therefore exhibit odd behavior at values just below white. It may be + advisable in such cases to set a brightness slightly less than the + maximum such a display is capable of.
    +
    + The program attempts to stop any screensaver or powersaver from + interfering with the measurements, but this may not be effective on + some systems, so it may be necessary to manually disable the + screensaver and/or powersaver before commencing the calibration with + a large number of patches.
    +
    + The calibration tables produced maintain the maximum level of + precision available on a system. If the display has VideoLUTs + available (Video Lookup Tables that the frame buffer values pass + through on their way to the display) and thier outputs are better + than 8 bits per component, then the resulting curves can reflect + this, although few current operating systems and/or display cards + actually support better than 8 bit per component output.
    +
    + If calibration curves are created for a display in which VideoLUTs + are not available, then the resulting calibration file will be + marked to indicate this, and a subsequent profile created with the + calibration will not have the calibration converted to the 'vcgt' + tag, since such a tag can't be loaded into the displays VideoLUTs.
    +
    + If communications break down with a USB connected instrument, you + may have to unplug it, and plug it in again to recover operation.
    +
    + Some systems (Apple OS X in particular) have a special set of user + interface controls ("Universal Access") that allows altering the + display in ways designed to assist visually impaired users, by + increasing contrast etc. This will interfere badly with any attempts + to calibrate or profile such a system, and must be turned off in + order to do so. Note that certain magic keyboard sequences can turn + this on by accident.
    +
    +
    +
    +
    +
    + + diff --git a/doc/dispread.html b/doc/dispread.html index 071fa7d..a30ab25 100644 --- a/doc/dispread.html +++ b/doc/dispread.html @@ -1,25 +1,25 @@ - - - - dispread - - - - -

    spectro/dispread 

    -

    Summary

    - Display test patches on a monitor, read the colorimetric value - result with the colorimeter, and create the chart readings file. The - type of instrument is determined by the communication port selected. - Emission and display measurement instruments are supported.
    -
    - If you want to read a display manually rather than automatically, - see chartread and the -d option.
    -

    Usage

    - dispread [-options] - inoutfile
    + + + + dispread + + + + +

    spectro/dispread 

    +

    Summary

    + Display test patches on a monitor, read the colorimetric value + result with the colorimeter, and create the chart readings file. The + type of instrument is determined by the communication port selected. + Emission and display measurement instruments are supported.
    +
    + If you want to read a display manually rather than automatically, + see chartread and the -d option.
    +

    Usage

    + dispread [-options] + inoutfile
     -v              @@ -43,16 +43,24 @@ -      Verbose mode
    -      -display displayname [X11 only] Choose X11 display - name
    -      -d n[,m] -             - [X11 only]Choose the display from the following list (default - 1),
    + + + + + + + + +      Verbose mode
    +      -display displayname [X11 only] Choose X11 display + name
    +      -d n[,m] +             + [X11 only]Choose the display from the following list (default + 1),
                          and optionally @@ -83,8 +91,16 @@ m - for VideoLUT access.
    -  
    +      -d n                 Choose the @@ -115,7 +131,15 @@ list - (default 1)
    + + + + + + + + + (default 1)
     -dweb[:port]         @@ -141,8 +165,16 @@ list - Display via a web server at port (default 8080)
    -  -dmadvr + + + + + + + + + Display via a web server at port (default 8080)
    +  -dmadvr              @@ -155,13 +187,25 @@ list - [MSWin] Display via MadVR Video Renderer
    -  -c listno -            Set - communication port from the following list (default 1)
    -     -dcc[:n]             + + +     Display via n'th ChromeCast (default 1, ? for list)
    +  -c listno +            Set + communication port from the following list (default 1)
    +      -p                   @@ -185,9 +229,17 @@ list - Use telephoto mode (ie. for a projector) (if available)
    -   -y X + + + + + + + + + Use telephoto mode (ie. for a projector) (if available)
    +   -y X                 Display @@ -213,9 +265,17 @@ Display - type - instrument specific list to choose from.
    -  -k + + + + + + + + + type - instrument specific list to choose from.
    +  -    k file.cal          @@ -239,9 +299,17 @@ Display - Load calibration file into display while reading
    -      -K + + + + + + + + + Load calibration file into display while reading
    +      -K file.cal          Apply @@ -266,12 +334,28 @@ Apply - calibration file to test values while reading
    + + + + + + + + + calibration file to test values while reading
     -V                   - [MSWin] Enable MadVR color management (3dLut)
    + + + + + + + + + [MSWin] Enable MadVR color management (3dLut)
     -s              @@ -295,11 +379,19 @@ Apply -      Save spectral information (default don't - save)
    -      -P ho,vo,ss[,vs]     Position - test window and scale it
    + + + + + + + + +      Save spectral information (default don't + save)
    +      -P ho,vo,ss[,vs]     Position + test window and scale it
                          ho,vi: 0.0 @@ -330,7 +422,15 @@ center, - 1.0 = right/bottom etc.
    + + + + + + + + + 1.0 = right/bottom etc.
                          ss: 0.5 @@ -361,7 +461,15 @@ normal, - 2.0 = double etc.
    + + + + + + + + + 2.0 = double etc.
                          @@ -378,9 +486,17 @@ normal, - ss,vs: = optional horizontal, vertical scale.
    -  -F + + + + + + + + + ss,vs: = optional horizontal, vertical scale.
    +  -F                   @@ -404,9 +520,17 @@ normal, - Fill whole screen with black background
    -  -E + + + + + + + + + Fill whole screen with black background
    +  -E                   @@ -415,10 +539,52 @@ normal, - Video - encode output as (16-235)/255 "TV" levels
    -      Video + encode output as (16-235)/255 "TV" levels
    +  -Z + nbits             + + + + + + + + + + + + + + + + Quantize +test +values +to +fit + + + + + + + + + + + + in nbits
    +  -n                   [X11 @@ -449,8 +615,16 @@ redirect - on test window
    -      -J + + + + + + + + + on test window
    +      -J              @@ -474,8 +648,16 @@ redirect -      Run calibration first
    -  
    +      -N                   @@ -499,16 +681,24 @@ redirect - Disable initial calibration of instrument if possible
    -      -H -              -      Use high resolution spectrum mode (if - available)
    -  -w + + + + + + + + + Disable initial calibration of instrument if possible
    +      -H +              +      Use high resolution spectrum mode (if + available)
    +  -w                   Disable normalisation @@ -539,8 +729,16 @@ Y - 100
    -  
    +       -X file.ccmx         @@ -564,8 +762,16 @@ Y - Apply Colorimeter Correction Matrix
    -  -X + + + + + + + + + Apply Colorimeter Correction Matrix
    +      -X file.ccss          Use Colorimeter @@ -592,13 +798,21 @@ Calibration - Spectral Samples for calibration
    -      -Q observ        -     Choose CIE Observer for spectrometer or CCSS - colorimeter data:
    + + + + + + + + + Spectral Samples for calibration
    +      -Q observ        +     Choose CIE Observer for spectrometer or CCSS + colorimeter data:
                @@ -622,11 +836,19 @@ Calibration -           1931_2     (def.), 1964_10, S&B 1955_2, shaw, - J&V 1978_2, 1964_10c
    -  (def.), 1964_10, S&B 1955_2, shaw, + J&V 1978_2, 1964_10c
    +      -I b|w               Drift compensation, @@ -657,14 +879,38 @@ Both: - -Ibw
    + + + + + + + + + -Ibw
     -Y + + + + + + + + R:rate             - Override measured refresh rate with rate Hz
    -          -Y A + + + + + + + + + Override measured refresh rate with rate Hz
    +      -Y A                 @@ -679,25 +925,33 @@ Both: - Use non-adaptive integration time mode (if available).
    -  -Y - p -             -     Don't wait for the instrument to be placed on - the display
    -  -C "command" -         Invoke shell - "command" each time a color is set
    -      -M "command" -         Invoke shell - "command" each time a color is measured
    -  
    +      -Y + p +             +     Don't wait for the instrument to be placed on + the display
    +  -C "command" +         Invoke shell + "command" each time a color is set
    +      -M "command" +         Invoke shell + "command" each time a color is measured
    +  -W n|h|x             Override serial @@ -728,10 +982,18 @@ n - none, h = HW, x = Xon/Xoff
    -  -D [level] -           Print debug - diagnostics to stderr
    + + + + + + + + + none, h = HW, x = Xon/Xoff
    +  -D [level] +           Print debug + diagnostics to stderr
     inoutfile            @@ -755,72 +1017,80 @@ n - Base name for input[.ti1]/output[.ti3] file.
    -
    - Examples
    -
    - dispread -c1 -i92 mycrt
    -

    Comments
    -

    - This is the tool for exercising a display, in order to measure its - color characteristics. The device test colors are defined by the - outfile.ti1 file, while the resulting device+colorimetric and - optional spectral readings are stored in the outfile.ti3 file. - Display calibration curves can be applied during the measurements, - and the curves included in the resulting .ti3 data file using the -kflag. See dispcal for information on how  to - calibrate the display before profiling it. For best results, you - should run this against a neutral grey desktop background, and avoid - having any bright images or windows on the screen at the time you - run it.
    -
    - The -v flag reports progress information.
    -
    - -display: - When running on a UNIX based system that used the X11 Windowing - System, dispread will by default use the $DISPLAY - environment variable to determine which display and screen to read - from. This can be overridden by supplying an X11 display name to the - -display option. Note that - if Xinerama is active, you can't select the screen using $DISPLAY or - -display, you have to select it using the -d parameter.
    -
    - -d: By - default the main display will be the location of the test window. If - the system has more than one display or screen, an alternate - display/screen can be selected with the -d parameter. If you invoke dispread so as to display the - usage information (i.e. "dispread -?" or "dispread --"), then the - discovered displays/screens will be listed. Multiple displays may - not be listed, if they appear as a single display to the operating - system (ie. the multi-display support is hidden in the video card - driver). On UNIX based system that used the X11 Windowing System, - the -d parameter will - override the screen specified by the $DISPLAY or -display parameter.
    -
    - On X11 the inability to access VideoLUTs could be because you are - trying to access a remote display, and the remote display doesn't - support the XF86VidMode extension, or perhaps you are running - multiple monitors using NVidia TwinView, or MergedFB, and trying to - access anything other than the primary monitor. TwinView and - MergedFB don't properly support the XF86VidMode extension for - multiple displays. You can use dispwin -r - to test whether the VideoLUTs are accessible for a particular - display. See also below, on how to select a different display for - VideoLUT access. Also note that dispcal will fail if the Visual - depth doesn't match the VideoLUT depth. Typically the VideoLUTs have - 256 entries per color component, so the Visual generally needs to be - 24 bits, 8 bits per color component.
    -
    - Because of the difficulty cause by TwinView and - MergedFB in X11 based systems, you can optionally specify a separate - display number after the display that is going to be used to present - test patches, for accessing the VideoLUT hardware. This must be + + + + + + + + + Base name for input[.ti1]/output[.ti3] file.
    +
    + Examples
    +
    + dispread -c1 -i92 mycrt
    +

    Comments
    +

    + This is the tool for exercising a display, in order to measure its + color characteristics. The device test colors are defined by the + outfile.ti1 file, while the resulting device+colorimetric and + optional spectral readings are stored in the outfile.ti3 file. + Display calibration curves can be applied during the measurements, + and the curves included in the resulting .ti3 data file using the -kflag. See dispcal for information on how  to + calibrate the display before profiling it. For best results, you + should run this against a neutral grey desktop background, and avoid + having any bright images or windows on the screen at the time you + run it.
    +
    + The -v flag reports progress information.
    +
    + -display: + When running on a UNIX based system that used the X11 Windowing + System, dispread will by default use the $DISPLAY + environment variable to determine which display and screen to read + from. This can be overridden by supplying an X11 display name to the + -display option. Note that + if Xinerama is active, you can't select the screen using $DISPLAY or + -display, you have to select it using the -d parameter.
    +
    + -d: By + default the main display will be the location of the test window. If + the system has more than one display or screen, an alternate + display/screen can be selected with the -d parameter. If you invoke dispread so as to display the + usage information (i.e. "dispread -?" or "dispread --"), then the + discovered displays/screens will be listed. Multiple displays may + not be listed, if they appear as a single display to the operating + system (ie. the multi-display support is hidden in the video card + driver). On UNIX based system that used the X11 Windowing System, + the -d parameter will + override the screen specified by the $DISPLAY or -display parameter.
    +
    + On X11 the inability to access VideoLUTs could be because you are + trying to access a remote display, and the remote display doesn't + support the XF86VidMode extension, or perhaps you are running + multiple monitors using NVidia TwinView, or MergedFB, and trying to + access anything other than the primary monitor. TwinView and + MergedFB don't properly support the XF86VidMode extension for + multiple displays. You can use dispwin -r + to test whether the VideoLUTs are accessible for a particular + display. See also below, on how to select a different display for + VideoLUT access. Also note that dispcal will fail if the Visual + depth doesn't match the VideoLUT depth. Typically the VideoLUTs have + 256 entries per color component, so the Visual generally needs to be + 24 bits, 8 bits per color component.
    +
    + Because of the difficulty cause by TwinView and + MergedFB in X11 based systems, you can optionally specify a separate + display number after the display that is going to be used to present + test patches, for accessing the VideoLUT hardware. This must be specified as a single string, e.g. -d @@ -844,240 +1114,280 @@ n - 1,2 . Some experimentation may be needed using dispwin on such systems, to discover what - screen has access to the VideoLUT hardware, and which screens the - test patches appear on. You may be able to calibrate one screen, and - then share the calibration with another screen. Profiling can be - done independently to calibration.
    -
    - -dweb or - -dweb:port starts a - standalone web server on your machine, which then allows a local or - remote web browser to display the the color test patches. By default - port 8080 is used, but this - can be overridden by appending a : - and the port number i.e. -dweb:8001. - The URL will be http:// - then name of the machine or its I.P. address followed by a colon and - the port number - e.g something like http://192.168.0.1:8080. If you use the verbose - option (-v) then a likely - URL will be printed once the server is started, or you could run ipconfig (MSWin) or /sbin/ifconfig (Linux or OS X) - and identify an internet address for your machine that way. - JavaScript needs to be enabled in your web browser for this to - work.
    -
    - Note that if you use this method of displaying test patches, that - there is no access to the display VideoLUTs and that the colors will - be displayed with 8 bit per component precision, and any - screen-saver or power-saver will not be disabled. You will also be - at the mercy of any color management applied by the web browser, and - may have to carefully review and configure such color management. - See the -o flag for an explanation of - the implications of having no access to the VideoLUTs.
    -
    - -dmadvr - [MSWin only] causes test patches to be displayed using the MadVR - video renderer. Note that you may have to start the video playback - software and load a video clip in pause for this to work. MadVR - rendering does not need or support VideoLUT access, so the -K option should be used to read calibrated values. - Be aware that the state of the Graphics Card VideoLUTs may affect - the results, and therefore may have to be set appropriately using - dispwin. By default the test patch colors will not be - processed by the MadVR 3dLut (see the -V flag).
    -
    - -c: The - instrument is assumed to communicate through a USB or serial - communication port, and the port can be selected with the -c - option, if the instrument is not connected to the first port. If you - invoke dispread so as to - display the usage information (i.e. "dispread -?" or "dispread --"), - then the discovered USB and serial ports will be listed. On - UNIX/Linux, a list of all possible serial ports are shown, but not - all of them may actually be present on your system.
    -
    - The -p flag - allows measuring in telephoto mode, using instruments that support - this mode, e.g. the ColorMunki. Telephoto mode is one for taking - emissive measurements from a distance (ie. telespectometer, - tele-colorimeter) mode, and typically would be used for measuring - projector type displays. If a device does not support a specific - telephoto mode, then the normal emissive mode may be suitable for - measuring projectors.
    -
    - The -y flag - allows setting the Display Type. The selection typically determines - two aspects of of the instrument operation: 1) It may set the measuring mode - to suite refresh or non-refresh displays. - Typically only LCD (Liquid Crystal) displays have a non-refresh - nature. 2) It may select an - instrument calibration matrix suitable for a particular display - type. The selections available depends on the type and model of - instrument, and a list of the options for the discovered instruments - will be shown in the usage - information. For more details on what particular instruments support - and how this works, see Operation of - particular instruments. 3) Any installed CCSS files - (if applicable), or CCMX files. These files are typically created - using ccxxmake, - and installed using oeminst. The - default and Base Calibration types will be indicated in the usage.
    -
    - -s: By - default only the colorimetric information (XYZ value) will be saved, - but for instruments that support spectral readings (such as the - Gretag Spectrolino), the -s option will save the spectral - readings to the .ti3 file as well.
    -
    - -k: If a - display video lookup table calibration .cal file is provided, it will - be loaded into the display VideoLUTs - while the measurements are being taken, thereby being applied to the - measurement values, and the calibration will also included in the - resulting .ti3 data file, so that colprof - can include it as a vcgt - tag in the resulting profile. This is the normal way to profile a calibrated display. The - calibration file has usually been created using dispcal. If the calibration file indicates - that the displays VideoLUTs are not accessible, or if they prove not - to be accessible, then dispread will switch to -K mode (see below). If a - calibration file is not supplied using -k or -K, - then the display will be measured in whatever calibration state it - is in, and no calibration information is saved to the resulting .ti3 - file.
    - If the calibration file provided created using video range encoding - (dispcal -E), then the -E option in dispread will be - triggered automatically.
    - NOTE that the calibration is - loaded into the display hardware just before the instrument starts - measurement, after the test window first appears.
    -
    - -K: If a - display video lookup table calibration .cal file is provided, it will - be applied to the test values for each measurement, and also - included in the resulting .ti3 data file, so that colprof can include it as a vcgt tag in the resulting - profile. This is NOT - normally the best way to profile a calibrated display, since the - frame buffer may have lower precision than the VideoLUTs output - values. This is the way calibration should be applied if MadVR is - being used to display the test patches. If a calibration file is not - supplied using -k or -K, then the display will be - measured in whatever calibration state it is in, and no calibration - information is saved to the resulting .ti3 file.
    - If the calibration file provided created using video range encoding - (dispcal -E), then the -E option in dispread will be - triggered automatically.
    -
    - -V: [MSWin] If using MadVR to display test - patches, then enable Color Managenent (3dLut). This would be used - for verification measurement.
    -
    - The -P - parameter allows you to position and size the test patch window. By - default it is places in the center of the screen, and sized - appropriately for the type of instrument. The ho and vo values govern the horizontal - and vertical offset respectively. A value of 0.0 positions the - window to the far left or top of the screen, a value of 0.5 - positions it in the center of the screen (the default), and 1.0 - positions it to the far right or bottom of the screen. If three - parameters are provided, then the ss - parameter is a scale factor for the test window size. A value of 0.5 - for instance, would produce a half sized window. A value of 2.0 will - produce a double size window. If four parameters are provided, then - the last two set independent horizontal and vertical scaling - factors. Note that the ho,vo,ss or ho,vo,hs,vs numbers must be - specified as a single string (no space between the numbers and the - comma). For example, to create a double sized test window at the top - right of the screen, use -P 1,0,2 - . To create a window twice as wide as high: -P 1,0,2,1.
    -
    - The -F - flag causes the while screen behind the test window to be masked - with black. This can aid black accuracy when measuring CRT displays - or projectors.
    -
    - The -E - flag causes the test values to be scaled to the Video RGB encoding - range of 16/255 to 235/255. If the calibration file provided using - the -k or -K flag was created using video range - encoding, then this option will be triggered automatically.
    -
    - -n: When - running on a UNIX based system that used the X11 Windowing System, dispread - normally selects the override redirect so that the test window will - appear above any other windows on the display. On some systems this - can interfere with window manager operation, and the -n - option turns this behaviour off.
    -
    - The -J - option runs through the black and sensor relative calibration - routines for the Xrite DTP92 and DTP94 instrument, the black level - calibration for the Eye-One Display 1, and a CRT frequency - calibration for the Eye-One Display 2. For the black calibration the - instrument should be placed on an opaque, black surface, and any - stray light should be avoided by placing something opaque over the - instrument. If a Spectrolino is being used, then a white and black - calibration will always be performed before the instrument can be - placed on the display, unless the -N flag is used. - Generally it is not necessary to do a calibration every time an - instrument is used, just now and again. There is no point in - doing  a CRT frequency calibration, as this will be done - automatically at the commencement of patch reading.
    -
    - -N Any - instrument that requires regular calibration will ask for - calibration on initial start-up. Sometimes this can be awkward if - the instrument is being mounted in some sort of measuring jig, or - annoying if several sets of readings are being taken in quick - succession. The -N - suppresses this initial calibration if a valid and not timed out - previous calibration is recorded in the instrument or on the host - computer. It is advisable to only use this option on the second and - subsequent measurements in a single session.
    -
    - The -H - option turns on high resolution spectral mode, if the instrument - supports it. See Operation of particular - instruments for more details. This may give better accuracy - for display measurements.
    -
    - The -w flag disables the normalisation of - the white patch value to 100.0, resulting in values that are in - cd/m^2. This is mainly for diagnostic purposes.
    -
    - The -X file.ccmx option reads - a Colorimeter Correction Matrix - from the given file, and applies it to the colorimeter instruments - readings. This can improve a colorimeters accuracy for a particular - type of display. A list of contributed ccmx files is here.
    -
    - The -X file.ccss option reads - a Colorimeter Calibration - Spectral Sample from the given file, and uses it to set the - colorimeter instruments calibration. This will only work with - colorimeters that rely on sensor spectral sensitivity calibration - information (ie. the X-Rite i1d3, + + + + + + + + + 1,2 . Some experimentation may be needed using dispwin on such systems, to discover what + screen has access to the VideoLUT hardware, and which screens the + test patches appear on. You may be able to calibrate one screen, and + then share the calibration with another screen. Profiling can be + done independently to calibration.
    +
    + -dweb or + -dweb:port starts a + standalone web server on your machine, which then allows a local or + remote web browser to display the the color test patches. By default + port 8080 is used, but this + can be overridden by appending a : + and the port number i.e. -dweb:8001. + The URL will be http:// + then name of the machine or its I.P. address followed by a colon and + the port number - e.g something like http://192.168.0.1:8080. If you use the verbose + option (-v) then a likely + URL will be printed once the server is started, or you could run ipconfig (MSWin) or /sbin/ifconfig (Linux or OS X) + and identify an internet address for your machine that way. + JavaScript needs to be enabled in your web browser for this to + work. You may have to modify any firewall to permit port 8080 to be + accessed on your machine.
    +
    + Note that if you use this method of displaying test patches, that + there is no access to the display VideoLUTs and that the colors will + be displayed with 8 bit per component precision, and any + screen-saver or power-saver will not be disabled. You will also be + at the mercy of any color management applied by the web browser, and + may have to carefully review and configure such color management. + See the -o flag for an explanation of + the implications of having no access to the VideoLUTs.
    +
    + -dmadvr + [MSWin only] causes test patches to be displayed using the MadVR + video renderer. Note that you may have to start the video playback + software and load a video clip in pause for this to work. MadVR + rendering does not need or support VideoLUT access, so the -K option should be used to read calibrated values. + Be aware that the state of the Graphics Card VideoLUTs may affect + the results, and therefore may have to be set appropriately using + dispwin. By default the test patch colors will not be + processed by the MadVR 3dLut (see the -V flag).
    +
    + -dcc or -dcc:no + causes test patches to be displayed using and available ChromeCast to + your TV. Use -dcc:? to display a list of ChromeCasts on your + local network. Note that the ChromeCast as a test patch source is + probably the least accurate of your choices, since it + up-samples the test patch and transforms from RGB to YCC and back, + but should be accurate within ± 1 bit. You may have to modify any + firewall to permit port 8081 to be accessed on your machine if it + falls back to the Default receiver (see installation + instructions for your platform).
    +
    + -c: The + instrument is assumed to communicate through a USB or serial + communication port, and the port can be selected with the -c + option, if the instrument is not connected to the first port. If you + invoke dispread so as to + display the usage information (i.e. "dispread -?" or "dispread --"), + then the discovered USB and serial ports will be listed. On + UNIX/Linux, a list of all possible serial ports are shown, but not + all of them may actually be present on your system.
    +
    + The -p flag + allows measuring in telephoto mode, using instruments that support + this mode, e.g. the ColorMunki. Telephoto mode is one for taking + emissive measurements from a distance (ie. telespectometer, + tele-colorimeter) mode, and typically would be used for measuring + projector type displays. If a device does not support a specific + telephoto mode, then the normal emissive mode may be suitable for + measuring projectors.
    +
    + The -y flag + allows setting the Display Type. The selection typically determines + two aspects of of the instrument operation: 1) It may set the measuring mode + to suite refresh or non-refresh displays. + Typically only LCD (Liquid Crystal) displays have a non-refresh + nature. 2) It may select an + instrument calibration matrix suitable for a particular display + type. The selections available depends on the type and model of + instrument, and a list of the options for the discovered instruments + will be shown in the usage + information. For more details on what particular instruments support + and how this works, see Operation of + particular instruments. 3) Any installed CCSS files + (if applicable), or CCMX files. These files are typically created + using ccxxmake, and installed using oeminst. The default and Base Calibration + types will be indicated in the usage.
    +
    + -s: By + default only the colorimetric information (XYZ value) will be saved, + but for instruments that support spectral readings (such as the + Gretag Spectrolino), the -s option will save the spectral + readings to the .ti3 file as well.
    +
    + -k: If a + display video lookup table calibration .cal file is provided, it will + be loaded into the display VideoLUTs + while the measurements are being taken, thereby being applied to the + measurement values, and the calibration will also included in the + resulting .ti3 data file, so that colprof + can include it as a vcgt + tag in the resulting profile. This is the normal way to profile a calibrated display. The + calibration file has usually been created using dispcal. If the calibration file indicates + that the displays VideoLUTs are not accessible, or if they prove not + to be accessible, then dispread will switch to -K mode (see below). If a + calibration file is not supplied using -k or -K, + then the display will be measured in whatever calibration state it + is in, and no calibration information is saved to the resulting .ti3 + file.
    + If the calibration file provided created using video range encoding + (dispcal -E), then the -E option in dispread will be + triggered automatically.
    + NOTE that the calibration is + loaded into the display hardware just before the instrument starts + measurement, after the test window first appears.
    +
    + -K: If a + display video lookup table calibration .cal file is provided, it will + be applied to the test values for each measurement, and also + included in the resulting .ti3 data file, so that colprof can include it as a vcgt tag in the resulting + profile. This is NOT + normally the best way to profile a calibrated display, since the + frame buffer may have lower precision than the VideoLUTs output + values. This is the way calibration should be applied if MadVR is + being used to display the test patches. If a calibration file is not + supplied using -k or -K, then the display will be + measured in whatever calibration state it is in, and no calibration + information is saved to the resulting .ti3 file.
    + If the calibration file provided created using video range encoding + (dispcal -E), then the -E option in dispread will be + triggered automatically.
    +
    + -V: [MSWin] If using MadVR to display test + patches, then enable Color Managenent (3dLut). This would be used + for verification measurement.
    +
    + The -P + parameter allows you to position and size the test patch window. By + default it is places in the center of the screen, and sized + appropriately for the type of instrument, or 10% of the width of the + display if the display size is unknown. The ho and vo values govern the horizontal + and vertical offset respectively. A value of 0.0 positions the + window to the far left or top of the screen, a value of 0.5 + positions it in the center of the screen (the default), and 1.0 + positions it to the far right or bottom of the screen. If three + parameters are provided, then the ss + parameter is a scale factor for the test window size. A value of 0.5 + for instance, would produce a half sized window. A value of 2.0 will + produce a double size window. If four parameters are provided, then + the last two set independent horizontal and vertical scaling + factors. Note that the ho,vo,ss or ho,vo,hs,vs numbers must be + specified as a single string (no space between the numbers and the + comma). For example, to create a double sized test window at the top + right of the screen, use -P 1,0,2 + . To create a window twice as wide as high: -P 1,0,2,1.
    +
    + The -F + flag causes the while screen behind the test window to be masked + with black. This can aid black accuracy when measuring CRT displays + or projectors.
    +
    + The -E + flag causes the test values to be scaled to the Video RGB encoding + range of 16/255 to 235/255. If the calibration file provided using + the -k or -K flag was created using video range + encoding, then this option will be triggered automatically. This + will also set quantization of 8 bits (see -Z flag below). If your + video connection is better than 8 bits (ie. 10 or 12 bits), then you + may wish to raise this default.
    +
    + -Z nbits Normally the target device values + are floating point numbers that may get rounded and quantized in the + process of printing them or reproducing them on the display device. + If some of this quantization can be accounted for, it may improve + the accuracy of the resulting profile, and the Q parameter allows this + quantization to be specified. The parameter is the number of binary + digits (bits) that the device values should be quantized to. An idea + of the number of bits of precision that makes its way to your + display can be obtained by using dispcal + -R If Video encoding is selected (see -E flag above), then 8 + bits is selected by default. On systems using an VGA connection or + Display Port with a graphics card with VideoLUT entries with greater + than 8 bits depth, or if using the MadVR rendered with dithering, + then a higher bit depth is typically possible.
    +
    + -n: When + running on a UNIX based system that used the X11 Windowing System, dispread + normally selects the override redirect so that the test window will + appear above any other windows on the display. On some systems this + can interfere with window manager operation, and the -n + option turns this behaviour off.
    +
    + The -J + option runs through the black and sensor relative calibration + routines for the Xrite DTP92 and DTP94 instrument, the black level + calibration for the Eye-One Display 1, and a CRT frequency + calibration for the Eye-One Display 2. For the black calibration the + instrument should be placed on an opaque, black surface, and any + stray light should be avoided by placing something opaque over the + instrument. If a Spectrolino is being used, then a white and black + calibration will always be performed before the instrument can be + placed on the display, unless the -N flag is used. + Generally it is not necessary to do a calibration every time an + instrument is used, just now and again. There is no point in + doing  a CRT frequency calibration, as this will be done + automatically at the commencement of patch reading.
    +
    + -N Any + instrument that requires regular calibration will ask for + calibration on initial start-up. Sometimes this can be awkward if + the instrument is being mounted in some sort of measuring jig, or + annoying if several sets of readings are being taken in quick + succession. The -N + suppresses this initial calibration if a valid and not timed out + previous calibration is recorded in the instrument or on the host + computer. It is advisable to only use this option on the second and + subsequent measurements in a single session.
    +
    + The -H + option turns on high resolution spectral mode, if the instrument + supports it. See Operation of particular + instruments for more details. This may give better accuracy + for display measurements.
    +
    + The -w flag disables the normalisation of + the white patch value to 100.0, resulting in values that are in + cd/m^2. This is mainly for diagnostic purposes.
    +
    + The -X file.ccmx option reads + a Colorimeter Correction Matrix + from the given file, and applies it to the colorimeter instruments + readings. This can improve a colorimeters accuracy for a particular + type of display. A list of contributed ccmx files is here.
    +
    + The -X file.ccss option reads + a Colorimeter Calibration + Spectral Sample from the given file, and uses it to set the + colorimeter instruments calibration. This will only work with + colorimeters that rely on sensor spectral sensitivity calibration + information (ie. the X-Rite i1d3, or the DataColor Spyder4).This can improve @@ -1104,144 +1414,152 @@ a - colorimeters accuracy for a particular type of display.
    -
    - The -Q flag allows specifying a tristimulus - observer, and is used to compute PCS (Profile Connection Space) - tristimulus values from spectral readings or using a colorimeter - that has CCSS capability. The following choices are available:
    -   1931_2 selects the standard CIE 1931 2 degree - observer. The default.
    -   1964_10 selects the standard CIE 1964 10 degree - observer.
    -   1955_2 selects the Stiles and Birch 1955 2 degree - observer
    -   1978_2 selects the Judd and Voss 1978 2 degree - observer
    -   shaw selects the Shaw and Fairchild 1997 2 degree - observer
    -   1964_10c selects a version of the CIE 1964 10 degree - observer that has been adjusted using a 3x3 matrix to better agree - with the 1931 2 degree observer.
    -
    - NOTE that if you select - anything other than the default 1931 2 degree observer, that the Y - values will not be cd/m^2, due to the Y curve not being the CIE 1924 - photopic V(λ) luminosity function.
    -
    - The -I b|w options invoke - instrument black level, and display white level compensation - (respectively). Instrument black level drift compensation attempts - to combat instrument black calibration drift by using a display - black test patch as a reference. If an instrument is not - acclimatised sufficiently to the measurement conditions, changes in - temperature can affect the black readings. Display white level drift - compensation attempts to combat changes in display brightness as it - warms up by measuring a white patch every so often, and using it to - normalise all the other readings. If just instrument black drift - compensation is needed, use -Ib. - If just display white level compensation is needed, use -Iw. If both are needed, use -Ibw or -Iwb.
    -
    - The -Y R:rate - options overrides calibration of the instrument refresh rate. This - may be useful if the instrument supports this function and the - refresh rate cannot be accurately calibrated from the display - itself.
    -  
    -     The -Y A - option uses a non-adaptive integration time emission measurement - mode, if the instrument supports it, such as the Eye-One Pro or - ColorMunki. By default an adaptive integration time measurement mode - will be used for emission measurements, but some instruments support - a fixed integration time mode that can be used with display devices. - This may give increased consistency and faster measurement times, - but may also give less accurate low level readings.
    -
    - The -Y p - option skips asking the user to place the instrument on the display. - Normally a grey patch is displayed, and then the user is asked to - confirm that the instrument is in place, so that readings can - commence. This flag disables that check. This may be useful in - automating certain operations.
    -
    -     The -C - "command" option allows a - method of relaying each test value to some other display than that - on the system running dispread (for instance, a photo frame, PDA - screen etc.), by causing the given command to be invoked to the - shell, with six arguments. The first three arguments are the RGB - test color as integers in the range 0 to 255, the second three - parameters are the RGB test color as floating point numbers in the - range 0.0 to 1.0. The script or tool should relay the given color to - the screen in some manner (e.g. by generating a raster file of the - given color and sending it to the display being profiled), before - returning. Note that a test window will also be created on the - system running dispread.
    -
    - The -M "command" option allows a - method of gathering each test value from some external source, such - as an instrument that is not directly supported by Argyll. The given - command is involked to the shell, with six arguments. The first - three arguments are the RGB test color as integers in the range 0 to - 255, the second three parameters are the RGB test color as floating - point numbers in the range 0.0 to 1.0. The script or tool should - create a file called "command.meas" - that contains the XYZ values for the given RGB (or measured from the - test window) in cd/m^2 as three numbers separated by spaces, before - returning. If the command returns a non-zero return value, dispread - will abort. Note that a test window will also be created on the - system running dispread.
    -
    - The -W n|h|x - parameter overrides the default serial communications flow control - setting. The value n turns - all flow control off, h - sets hardware handshaking, and x - sets Xon/Xoff handshaking. This commend may be useful in workaround - serial communications issues with some systems and cables.
    -
    - The -D flag causes communications and other - instrument diagnostics to be printed to stdout. A level can be set - between 1 .. 9, that may give progressively more verbose - information, depending on the instrument. This can be useful in - tracking down why an instrument can't connect.
    -
    - The final parameter on the command line is the - base filename for the .ti1 - input file, and the .ti3 - output file. dispread will add the .ti1 and .ti3 extensions - automatically.
    -
    - NOTE that on an X11 system, - if the environment variable ARGYLL_IGNORE_XRANDR1_2 - is set (ie. set it to "yes"), then the presence of the XRandR 1.2 - extension will be ignored, and other extensions such as Xinerama and - XF86VidMode extension will be used. This may be a way to work around - buggy XRandR 1.2 implementations.
    -
    -

    - If a large number of patches is being read, the screensaver on many - systems can interfere with the operation of dispread. It is - therefore advisable in these cases to manually turn off the - screensaver before commencing the measurements.
    -
    - If communications break down with a USB connected instrument, you - may have to unplug it, and plug it in again to recover.
    -
    - Some systems (Apple OSX in particular) have a special set of user - interface controls ("Universal Access") that allows altering the - display in ways designed to assist visually impaired users, by - increasing contrast etc. This will interfere badly with any attempts - to calibrate or profile such a system, and must be turned off in - order to do so. Note that certain magic keyboard sequences can turn - this on by accident.
    -
    -
    -
    - - + + + + + + + + + colorimeters accuracy for a particular type of display.
    +
    + The -Q flag allows specifying a tristimulus + observer, and is used to compute PCS (Profile Connection Space) + tristimulus values from spectral readings or using a colorimeter + that has CCSS capability. The following choices are available:
    +   1931_2 selects the standard CIE 1931 2 degree + observer. The default.
    +   1964_10 selects the standard CIE 1964 10 degree + observer.
    +   1955_2 selects the Stiles and Birch 1955 2 degree + observer
    +   1978_2 selects the Judd and Voss 1978 2 degree + observer
    +   shaw selects the Shaw and Fairchild 1997 2 degree + observer
    +   1964_10c selects a version of the CIE 1964 10 degree + observer that has been adjusted using a 3x3 matrix to better agree + with the 1931 2 degree observer.
    +
    + NOTE that if you select + anything other than the default 1931 2 degree observer, that the Y + values will not be cd/m^2, due to the Y curve not being the CIE 1924 + photopic V(λ) luminosity function.
    +
    + The -I b|w options invoke + instrument black level, and display white level compensation + (respectively). Instrument black level drift compensation attempts + to combat instrument black calibration drift by using a display + black test patch as a reference. If an instrument is not + acclimatised sufficiently to the measurement conditions, changes in + temperature can affect the black readings. Display white level drift + compensation attempts to combat changes in display brightness as it + warms up by measuring a white patch every so often, and using it to + normalise all the other readings. If just instrument black drift + compensation is needed, use -Ib. + If just display white level compensation is needed, use -Iw. If both are needed, use -Ibw or -Iwb.
    +
    + The -Y R:rate + options overrides calibration of the instrument refresh rate. This + may be useful if the instrument supports this function and the + refresh rate cannot be accurately calibrated from the display + itself.
    +  
    +     The -Y A + option uses a non-adaptive integration time emission measurement + mode, if the instrument supports it, such as the Eye-One Pro, + ColorMunki, i1d3 and K10. By default an adaptive integration time + measurement mode will be used for emission measurements, but some + instruments support a fixed integration time mode that can be used + with display devices. This may give faster measurement times, but + may also give less accurate low level readings.
    +
    + The -Y p + option skips asking the user to place the instrument on the display. + Normally a grey patch is displayed, and then the user is asked to + confirm that the instrument is in place, so that readings can + commence. This flag disables that check. This may be useful in + automating certain operations.
    +
    +     The -C + "command" option allows a + method of relaying each test value to some other display than that + on the system running dispread (for instance, a photo frame, PDA + screen etc.), by causing the given command to be invoked to the + shell, with six arguments. The first three arguments are the RGB + test color as integers in the range 0 to 255, the second three + parameters are the RGB test color as floating point numbers in the + range 0.0 to 1.0. The script or tool should relay the given color to + the screen in some manner (e.g. by generating a raster file of the + given color and sending it to the display being profiled), before + returning. Note that a test window will also be created on the + system running dispread.
    +
    + The -M "command" option allows a + method of gathering each test value from some external source, such + as an instrument that is not directly supported by Argyll. The given + command is involked to the shell, with six arguments. The first + three arguments are the RGB test color as integers in the range 0 to + 255, the second three parameters are the RGB test color as floating + point numbers in the range 0.0 to 1.0. The script or tool should + create a file called "command.meas" + that contains the XYZ values for the given RGB (or measured from the + test window) in cd/m^2 as three numbers separated by spaces, before + returning. If the command returns a non-zero return value, dispread + will abort. Note that a test window will also be created on the + system running dispread.
    +
    + The -W n|h|x + parameter overrides the default serial communications flow control + setting. The value n turns + all flow control off, h + sets hardware handshaking, and x + sets Xon/Xoff handshaking. This commend may be useful in workaround + serial communications issues with some systems and cables.
    +
    + The -D flag causes communications and other + instrument diagnostics to be printed to stdout. A level can be set + between 1 .. 9, that may give progressively more verbose + information, depending on the instrument. This can be useful in + tracking down why an instrument can't connect.
    +
    + The final parameter on the command line is the + base filename for the .ti1 + input file, and the .ti3 + output file. dispread will add the .ti1 and .ti3 extensions + automatically.
    +
    + NOTE that on an X11 system, + if the environment variable ARGYLL_IGNORE_XRANDR1_2 + is set (ie. set it to "yes"), then the presence of the XRandR 1.2 + extension will be ignored, and other extensions such as Xinerama and + XF86VidMode extension will be used. This may be a way to work around + buggy XRandR 1.2 implementations.
    +
    +

    + If a large number of patches is being read, the screensaver on many + systems can interfere with the operation of dispread. It is + therefore advisable in these cases to manually turn off the + screensaver before commencing the measurements.
    +
    + If communications break down with a USB connected instrument, you + may have to unplug it, and plug it in again to recover.
    +
    + Some systems (Apple OSX in particular) have a special set of user + interface controls ("Universal Access") that allows altering the + display in ways designed to assist visually impaired users, by + increasing contrast etc. This will interfere badly with any attempts + to calibrate or profile such a system, and must be turned off in + order to do so. Note that certain magic keyboard sequences can turn + this on by accident.
    +
    +
    +
    + + diff --git a/doc/dispwin.html b/doc/dispwin.html index f1d75f5..6036e76 100644 --- a/doc/dispwin.html +++ b/doc/dispwin.html @@ -1,38 +1,38 @@ - - - - dispwin - - - - -

    spectro/dispwin

    -

    Summary

    - This tool has several different but related functions. When given as - a file argument an ICC profile containing vcgt "gamma" curves, or an - Argyll video calibration .cal file, it will load that calibration - into the chosen display. It can also install or uninstall a profile - in the system for the chosen display, or set the display calibration - to that in the currently installed system profile. By default it - displays a test window the same as that used by dispcal and - dispread, to test this functionality. It can also be used to test - the ability to load video card LUT curves to each display, and to - test how the console Bell will sound when used with some instruments - (ie. Eye-One Pro).
    -
    - [Note that in OS X 10.7 Lion, changes to the default system profile - permissions mean that you can't set a calibration persistently when - the default system profile is being used, unless you run as root - (ie. use sudo). Note that you do not - need to run as root to install a user profile (-Su, the default - install type.)]
    -

    Usage

    - dispwin - [options] [calfile]
    -  -v + + + dispwin + + + + +

    spectro/dispwin

    +

    Summary

    + This tool has several different but related functions. When given as + a file argument an ICC profile containing vcgt "gamma" curves, or an + Argyll video calibration .cal file, it will load that calibration + into the chosen display. It can also install or uninstall a profile + in the system for the chosen display, or set the display calibration + to that in the currently installed system profile. By default it + displays a test window the same as that used by dispcal and + dispread, to test this functionality. It can also be used to test + the ability to load video card LUT curves to each display, and to + test how the console Bell will sound when used with some instruments + (ie. Eye-One Pro).
    +
    + [Note that in OS X 10.7 Lion, changes to the default system profile + permissions mean that you can't set a calibration persistently when + the default system profile is being used, unless you run as root + (ie. use sudo). Note that you do not + need to run as root to install a user profile (-Su, the default + install type.)]
    +

    Usage

    + dispwin + [options] [calfile]
    +  -v                   Verbose @@ -47,17 +47,21 @@ Verbose - mode
    -      -display displayname [X11 only] Choose X11 display name
    -      -d n[,m] -             - [X11 only] Choose the - display from the following list (default 1),
    + + + + + mode
    +      -display displayname [X11 only] Choose X11 display name
    +      -d n[,m] +             + [X11 only] Choose the + display from the following list (default 1),
                          and optionally @@ -72,8 +76,12 @@ optionally - choose a different display m for Video LUT access.
    -      -d n                 [Not X11] @@ -88,8 +96,12 @@ X11] - Choose the display from the following list (default 1)
    -       +      -dweb[:port]         @@ -100,16 +112,24 @@ X11] - Display via a web server at port (default 8080)
    -  -dmadvr -              - [MSWin] Display via MadVR Video Renderer
    -  -P - ho,vo,ss[,vs]     Position test window - and scale it
    + + + + + Display via a web server at port (default 8080)
    +  -dmadvr +              + [MSWin] Display via MadVR Video Renderer
    +  -dcc[:n]             + + + Display via n'th ChromeCast (default 1, ? for + list)
    +  -P + ho,vo,ss[,vs]     Position test window + and scale it
                          ho,vi: 0.0 @@ -124,8 +144,12 @@ ho,vi: - = left/top, 0.5 = center, 1.0 = right/bottom etc.
    + + + + + = left/top, 0.5 = center, 1.0 = right/bottom etc.
                          ss: 0.5 @@ -140,7 +164,11 @@ ss: - = half, 1.0 = normal, 2.0 = double etc.
    + + + + + = half, 1.0 = normal, 2.0 = double etc.
                          @@ -149,9 +177,13 @@ ss: - ss,vs: = optional horizontal, vertical scale.
    -      -F + + + + + ss,vs: = optional horizontal, vertical scale.
    +      -F                   Fill whole @@ -166,30 +198,38 @@ whole - screen with black background
    -  -E + + + + + screen with black background
    +  -E                   - Video - encode output as (16-235)/255 "TV" levels
    -  -i -              -      Run forever with random values
    -  -G filename -          Display RGB - colors from CGATS file
    -      -m -              -      Manually step through colors
    -  Video + encode output as (16-235)/255 "TV" levels
    +      -i +              +      Run forever with random values
    +  -G filename +          Display RGB + colors from CGATS file
    +      -m +              +      Manually step through colors
    +  -r                   Test just @@ -204,9 +244,13 @@ just - video LUT loading & Beeps
    -      -n + + + + + video LUT loading & Beeps
    +      -n                   Test native @@ -221,7 +265,11 @@ native - display values (rather than through Video LUT  and C.M.)
    + + + + + display values (rather than through Video LUT  and C.M.)
     -s filename.cal      Save the @@ -236,9 +284,13 @@ the - currently loaded Video LUT to 'filename'
    -      -c + + + + + currently loaded Video LUT to 'filename'
    +      -c                   Load a @@ -253,10 +305,14 @@ a - linear display calibration (clear calibration)
    -      -V + + + + + linear display calibration (clear calibration)
    +      -V                   Verify that @@ -271,9 +327,13 @@ that - calfile/profile cal. is currently loaded in LUT
    -      -I + + + + + calfile/profile cal. is currently loaded in LUT
    +      -I                   @@ -286,10 +346,14 @@ that - Install profile for display and use it's calibration
    -      -U + + + + + Install profile for display and use it's calibration
    +      -U                   @@ -302,8 +366,12 @@ that - Un-install profile for display
    + + + + +     Un-install profile for display
     -S d                 Specify the @@ -318,7 +386,11 @@ the - install/uninstall scope for OS X [nlu] or Vista [lu]
    + + + + + install/uninstall scope for OS X [nlu] or Vista [lu]
                          d is @@ -333,10 +405,14 @@ is - one of: n = network, l = local system, u = user (default)
    -      -L + + + + + one of: n = network, l = local system, u = user (default)
    +      -L                   @@ -349,10 +425,14 @@ is - Load installed profiles cal. into Video LUT
    -      -X + + + + + Load installed profiles cal. into Video LUT
    +      -X                   @@ -365,10 +445,14 @@ is - [X11 only] Run in daemon - loader mode for given X11 server
    -      X11 only] Run in daemon + loader mode for given X11 server
    +      -D [level]           Print debug @@ -383,13 +467,17 @@ debug - diagnostics to stderr
    -      calfile
    +      calfile              Load display @@ -404,59 +492,63 @@ display - calibration (.cal or .icm) into - LUT, and exit.
    -
    -

    Comments
    -

    - The -v flag makes the program more - verbose..
    -
    - display: - When running on a UNIX based system that used the X11 Windowing - System, dispwin will by default use the $DISPLAY environment - variable to determine which display and screen to read from. This - can be overridden by supplying an X11 display name to the -display option. Note that if - Xinerama is active, you can't select the screen using $DISPLAY or - -display, you have to select it using the -d parameter.
    -
    - -d: By - default the location of the test window will be the main display. If - the system has more than one display or screen, an alternate - display/screen can be selected with the -d parameter. If you invoke dispwin so as to display the - usage information (i.e. "dispcal -?" or "dispcal --"), then the - discovered displays/screens will be listed. Multiple displays may - not be listed if they appear as a single display to the operating - system (ie. the multi-display support is hidden in the video card - driver). On UNIX based system that used the X11 Windowing System, - the -d parameter will - override the screen specified by the $DISPLAY or -display parameter.
    -
    - Note that if VideoLUTs for a - display are not accessible (i.e. no hardware calibration - capability), dispwin will - will issue a warning or fail when it attempts to access them.
    -
    - On X11 the inability to access VideoLUTs could be because you are - trying to access a remote display, and the remote display doesn't - support the XF86VidMode extension, or perhaps you are running - multiple monitors using NVidia TwinView, or MergedFB, and trying to - access anything other than the primary monitor. TwinView and - MergedFB don't properly support the XF86VidMode extension for - multiple displays. You can use dispwin -r - to test whether the VideoLUTs are accessible for a particular - display. See also below, on how to select a different display for - VideoLUT access. Also note that dispcal will fail if the Visual - depth doesn't match the VideoLUT depth. Typically the VideoLUTs have - 256 entries per color component, so the Visual generally needs to be - 24 bits, 8 bits per color component.
    -
    + + + + + calibration (.cal or .icm) into + LUT, and exit.
    +
    +

    Comments
    +

    + The -v flag makes the program more + verbose..
    +
    + display: + When running on a UNIX based system that used the X11 Windowing + System, dispwin will by default use the $DISPLAY environment + variable to determine which display and screen to read from. This + can be overridden by supplying an X11 display name to the -display option. Note that if + Xinerama is active, you can't select the screen using $DISPLAY or + -display, you have to select it using the -d parameter.
    +
    + -d: By + default the location of the test window will be the main display. If + the system has more than one display or screen, an alternate + display/screen can be selected with the -d parameter. If you invoke dispwin so as to display the + usage information (i.e. "dispcal -?" or "dispcal --"), then the + discovered displays/screens will be listed. Multiple displays may + not be listed if they appear as a single display to the operating + system (ie. the multi-display support is hidden in the video card + driver). On UNIX based system that used the X11 Windowing System, + the -d parameter will + override the screen specified by the $DISPLAY or -display parameter.
    +
    + Note that if VideoLUTs for a + display are not accessible (i.e. no hardware calibration + capability), dispwin will + will issue a warning or fail when it attempts to access them.
    +
    + On X11 the inability to access VideoLUTs could be because you are + trying to access a remote display, and the remote display doesn't + support the XF86VidMode extension, or perhaps you are running + multiple monitors using NVidia TwinView, or MergedFB, and trying to + access anything other than the primary monitor. TwinView and + MergedFB don't properly support the XF86VidMode extension for + multiple displays. You can use dispwin -r + to test whether the VideoLUTs are accessible for a particular + display. See also below, on how to select a different display for + VideoLUT access. Also note that dispcal will fail if the Visual + depth doesn't match the VideoLUT depth. Typically the VideoLUTs have + 256 entries per color component, so the Visual generally needs to be + 24 bits, 8 bits per color component.
    +
    -d n[,m]Because of the @@ -471,242 +563,261 @@ the - difficulty cause by TwinView and MergedFB in X11 based systems, you - can optionally specify a separate display number after the display - that is going to be used to present test patches, for accessing the - VideoLUT hardware. This must be specified as a single string, e.g. -d 1,2 . Some experimentation - may be needed on such systems, to discover what screen has access to - the VideoLUT hardware, and which screens the test patches appear on. - You may be able to calibrate one screen, and then share the - calibration with another screen. Profiling can be done independently - to calibration.
    -
    - -dweb or - -dweb:port starts a - standalone web server on your machine, which then allows a local or - remote web browser to display the the color test patches. By default - port 8080 is used, but this - can be overridden by appending a : - and the port number i.e. -dweb:8001. - The URL will be http:// - then name of the machine or its I.P. address followed by a colon and - the port number - e.g something like http://192.168.0.1:8080. If you use the verbose - option (-v) then a likely - URL will be printed once the server is started, or you could run ipconfig (MSWin) or /sbin/ifconfig (Linux or OS X) - and identify an internet address for your machine that way. JavaScript - needs to be enabled in your web browser for this to work.
    -
    - Note that if you use this method of accessing a display, that there - is no access to the display Video Lookup tables, and that any - operation that depends on accessing the VideoLUTs will either - generate a warning or fail.
    -
    - -dmadvr - [MSWin only] causes test patches to be displayed using the MadVR - video renderer. Note that you may have to start the video playback - software and load a video clip in pause for this to work. MadVR - rendering does not need or support VideoLUT access, but be aware - that the state of the Graphics Card VideoLUTs may affect the results - (check this using dispwin). Test patch colors will be - processed by the MadVR 3dLut by default (see -n - flag).
    -
    - The -P - parameter allows you to position and size the test patch window. By - default it is places in the center of the screen, and sized - appropriately for the type of instrument. The ho and vo values govern the horizontal - and vertical offset respectively. A value of 0.0 positions the - window to the far left or top of the screen, a value of 0.5 - positions it in the center of the screen (the default), and 1.0 - positions it to the far right or bottom of the screen. If three - parameters are provided, then the ss - parameter is a scale factor for the test window size. A value of 0.5 - for instance, would produce a half sized window. A value of 2.0 will - produce a double size window. If four parameters are provided, then - the last two set independent horizontal and vertical scaling - factors. Note that the ho,vo,ss or ho,vo,hs,vs numbers must be - specified as a single string (no space between the numbers and the - comma). For example, to create a double sized test window at the top - right of the screen, use -P 1,0,2 - . To create a window twice as wide as high: -P 1,0,2,1.
    -
    - The -F - flag causes the while screen behind the test window to be masked - with black. This can aid black accuracy when measuring CRT displays - or projectors.
    -
    - The -E - flag causes the test values to be scaled to the Video RGB encoding - range of 16/255 to 235/255. Note that this is not applicable if the - MadVR render is being used to display patches, as MadVR should be - configured for Video encoding instead.
    -
    - By default dispwin will put - a test window on the selected display, and display some test colors, - before darkening  then brightening the screen by loading video - LUT values, test the bell sounds, then restore the original values - and exit.
    -
    - If the -i - flag is set, then dispwin - will display the preset sequence, then random test colors forever.
    -
    - If the -G - parameter is set, then dispwin - will display the sequence of RGB color in the supplied CGATS file, - e.g. a .ti1 file. Typically this might the used with the -m option to manually measure a - set of test patches.
    -
    - If the -m - flag is set, then dispwin - will display the preset sequence then exits, but advances manually - after each return key.
    -
    - If the -r - flag is set, then dispwin - will test just the loading of video LUT values by first darkening, - then lightening the screen, before exiting.
    -
    - If the -n - flag is set, then dispwin - will display the colors directly on the display, rather than having - the color values translated through the currently loaded Video LUTs. - In the case of using the MadVR renderer to display the patches, any - 3dLut will also be disabled.
    -
    - If a -s filename.cal option is - used, then rather than displaying a test window, dispwin will save the currently - loaded calibration curves to the given calibration file. Note that - other functions such as clearing or loading a calibration can be - performed after this action.
    -
    - If a -c - flag is used, then rather than displaying a test window, dispwin will load the selected - display with a linear set of Video LUT curves, effectively clearing - the calibration, and will then exit. Note that other functions such - as loading a calibration can be performed after this action.
    -
    - If a -V - flag is used, then rather than loading the calibration specified as - the final argument, the currently loaded calibration will be - verified as being the same as the given calibration file. If this is - combined with the -L flag, the currently - loaded calibration will be verified as being the same as the - installed system profile for the display.
    -
    - -I: The ICC - profile specified as the final argument will be installed as the - default operating system profile for the chosen display, and the - display calibration will be set to the calibration tag ('vcgt' tag, - if any) in that profile.. On MSWindows and OS X this means that the - profile will be copied to the appropriate color profile directory - and registered with the operating system. For Linux X11 systems, the - profile will be installed using the ucmm - convention, and the X11 _ICC_PROFILE property in the root window, - and also the the XrandR 1.2 X11 _ICC_PROFILE output property on - systems that are running XrandR 1.2 or later. The latter is - following this convention - for allowing applications to locate the display profile for a - particular X11 display, and expands it to accomodate XrandR 1.2. - Note that for X11 systems, the properties are not persistent, and - will need to be loaded each time the X11 server is started (see the - -L flag). To make sure that the profile calbration - 'vcgt' tag gets loaded into the Graphics Card at system start, - please read the guide here.
    -
    - -U: The ICC - profile specified as the final argument will be un-installed as the - default operating system profile for the chosen display. The display - calibration will remain unchanged.
    -
    - -S d: Some - systems have more than one profile scope that an installed profile - will apply to, and this parameter allows overriding the default user - scope. On OS X, there is a choice of three scopes: n: for network scope, if people - are sharing profiles over a network, l: local system scope, which installs the profile - for all users of a system, and the default u, which covers just the user - installing the profile. On Linux or Microsoft Vista, just the local - system l and user u scope are available. Note that - you may need to run dispwin with elevated privileges(sudo) to be - able to successfully use network or local system scope. This option - also applies to uninstalling a profile. Note that to install a user - profile for the root account, you will have to login as root (sudo - will not achieve this).
    -
    - -L: This - option fetches the current installed system profile for the chosen - display, and sets the display to the calibration tag ('vcgt' tag, if - any) in the profile. This is a convenient way of initializing the - display on system startup from the installed display profile, if the - system doesn't not do this automatically .
    -
    - -X: Daemon - mode (experimental). When running on a UNIX based system that used - the X11 Windowing System, this option runs dispwin in a "daemon" - mode where it monitors the given X11 server, waiting for any changes - in monitors that may require loading a matching ICC profile (ie. - such as re-configuring, plugging in a different monitor etc.)  - This only works if XRandR 1.2 is available on the server. By default - dispwin runs silently, and will not terminate. If the -v option is given, it will emit - messages to stdout to show what it is doing. When it is first - invoked, it will load the installed profiles of all the screens of - the given X11 server.
    -
    - The -D flag causes diagnostics to be printed - to stdout. A level can be set between 1 .. 9, that may give - progressively more verbose information. This can be useful in - tracking down why an operation fails.
    -
    - The final optional parameter on the command line - is the name of an ICC profile that contains a Video LUT vcgt tag, or an Argyll .cal format display calibration. If - this parameter is provided, then the selected display will be loaded - with the given calibration. If the -V - flag was given, then it is verified that this calibration is the - currently loaded one.  This may be useful in initializing a - system to the current calibration on system startup, although a - better way may be to install the profile (-I option), and then just use -L. Note that the vcgt tag - interpretation within Argyll is consistent with that of the - originators of the tag. Other ICC profile vcgt implementations may - not be so consistent.
    -
    - NOTE that on an X11 system, - if the environment variable ARGYLL_IGNORE_XRANDR1_2 - is set (ie. set it to "yes"), then the presence of the XRandR 1.2 - extension will be ignored, and other extensions such as Xinerama and - XF86VidMode extension will be used. This may be a way to work around - buggy XRandR 1.2 implementations.
    -
    - NOTE     on MSWin systems that you will have to disable any - other calibration installer program if you want to be able to - control calibration using dispwin. Note also that there are other - programs that will interfere with calibration loading, such as - igfxpers.exe that gets installed with nVidia "Optimus" technology.
    -
    -
    -
    -
    - - + + + + + difficulty cause by TwinView and MergedFB in X11 based systems, you + can optionally specify a separate display number after the display + that is going to be used to present test patches, for accessing the + VideoLUT hardware. This must be specified as a single string, e.g. -d 1,2 . Some experimentation + may be needed on such systems, to discover what screen has access to + the VideoLUT hardware, and which screens the test patches appear on. + You may be able to calibrate one screen, and then share the + calibration with another screen. Profiling can be done independently + to calibration.
    +
    + -dweb or + -dweb:port starts a + standalone web server on your machine, which then allows a local or + remote web browser to display the the color test patches. By default + port 8080 is used, but this + can be overridden by appending a : + and the port number i.e. -dweb:8001. + The URL will be http:// + then name of the machine or its I.P. address followed by a colon and + the port number - e.g something like http://192.168.0.1:8080. If you use the verbose + option (-v) then a likely + URL will be printed once the server is started, or you could run ipconfig (MSWin) or /sbin/ifconfig (Linux or OS X) + and identify an internet address for your machine that way. JavaScript + needs to be enabled in your web browser for this to work. You may + have to modify any firewall to permit port 8080 to be accessed on + your machine.
    +
    + Note that if you use this method of accessing a display, that there + is no access to the display Video Lookup tables, and that any + operation that depends on accessing the VideoLUTs will either + generate a warning or fail.
    +
    + -dmadvr + [MSWin only] causes test patches to be displayed using the MadVR + video renderer. Note that you may have to start the video playback + software and load a video clip in pause for this to work. MadVR + rendering does not need or support VideoLUT access, but be aware + that the state of the Graphics Card VideoLUTs may affect the results + (check this using dispwin). Test patch colors will be + processed by the MadVR 3dLut by default (see -n + flag).
    +
    + -dcc or -dcc:no + causes test patches to be displayed using and available ChromeCast to + your TV. Use -dcc:? to display a list of ChromeCasts on your + local network. Note that the ChromeCast as a test patch source is + probably the least accurate of your choices, since it + up-samples the test patch and transforms from RGB to YCC and back, + but should be accurate within ± 1 bit. You may have to modify any + firewall to permit port 8081 to be accessed on your machine if it + falls back to the Default receiver (see installation + instructions for your platform).
    +
    + The -P + parameter allows you to position and size the test patch window. By + default it is places in the center of the screen, and sized + appropriately for the type of instrument, or 10% of the width of the + display if the display size is unknown.. The ho and vo values govern the horizontal + and vertical offset respectively. A value of 0.0 positions the + window to the far left or top of the screen, a value of 0.5 + positions it in the center of the screen (the default), and 1.0 + positions it to the far right or bottom of the screen. If three + parameters are provided, then the ss + parameter is a scale factor for the test window size. A value of 0.5 + for instance, would produce a half sized window. A value of 2.0 will + produce a double size window. If four parameters are provided, then + the last two set independent horizontal and vertical scaling + factors. Note that the ho,vo,ss or ho,vo,hs,vs numbers must be + specified as a single string (no space between the numbers and the + comma). For example, to create a double sized test window at the top + right of the screen, use -P 1,0,2 + . To create a window twice as wide as high: -P 1,0,2,1.
    +
    + The -F + flag causes the while screen behind the test window to be masked + with black. This can aid black accuracy when measuring CRT displays + or projectors.
    +
    + The -E + flag causes the test values to be scaled to the Video RGB encoding + range of 16/255 to 235/255. Note that this is not applicable if the + MadVR render is being used to display patches, as MadVR should be + configured for Video encoding instead.
    +
    + By default dispwin will put + a test window on the selected display, and display some test colors, + before darkening  then brightening the screen by loading video + LUT values, test the bell sounds, then restore the original values + and exit.
    +
    + If the -i + flag is set, then dispwin + will display the preset sequence, then random test colors forever.
    +
    + If the -G + parameter is set, then dispwin + will display the sequence of RGB color in the supplied CGATS file, + e.g. a .ti1 file. Typically this might the used with the -m option to manually measure a + set of test patches.
    +
    + If the -m + flag is set, then dispwin + will display the preset sequence then exits, but advances manually + after each return key.
    +
    + If the -r + flag is set, then dispwin + will test just the loading of video LUT values by first darkening, + then lightening the screen, before exiting.
    +
    + If the -n + flag is set, then dispwin + will display the colors directly on the display, rather than having + the color values translated through the currently loaded Video LUTs. + In the case of using the MadVR renderer to display the patches, any + 3dLut will also be disabled.
    +
    + If a -s filename.cal option is + used, then rather than displaying a test window, dispwin will save the currently + loaded calibration curves to the given calibration file. Note that + other functions such as clearing or loading a calibration can be + performed after this action.
    +
    + If a -c + flag is used, then rather than displaying a test window, dispwin will load the selected + display with a linear set of Video LUT curves, effectively clearing + the calibration, and will then exit. Note that other functions such + as loading a calibration can be performed after this action.
    +
    + If a -V + flag is used, then rather than loading the calibration specified as + the final argument, the currently loaded calibration will be + verified as being the same as the given calibration file. If this is + combined with the -L flag, the currently + loaded calibration will be verified as being the same as the + installed system profile for the display.
    +
    + -I: The ICC + profile specified as the final argument will be installed as the + default operating system profile for the chosen display, and the + display calibration will be set to the calibration tag ('vcgt' tag, + if any) in that profile.. On MSWindows and OS X this means that the + profile will be copied to the appropriate color profile directory + and registered with the operating system. For Linux X11 systems, the + profile will be installed using the ucmm + convention, and the X11 _ICC_PROFILE property in the root window, + and also the the XrandR 1.2 X11 _ICC_PROFILE output property on + systems that are running XrandR 1.2 or later. The latter is + following this convention + for allowing applications to locate the display profile for a + particular X11 display, and expands it to accomodate XrandR 1.2. + Note that for X11 systems, the properties are not persistent, and + will need to be loaded each time the X11 server is started (see the + -L flag). To make sure that the profile calbration + 'vcgt' tag gets loaded into the Graphics Card at system start, + please read the guide here.
    +
    + -U: The ICC + profile specified as the final argument will be un-installed as the + default operating system profile for the chosen display. The display + calibration will remain unchanged.
    +
    + -S d: Some + systems have more than one profile scope that an installed profile + will apply to, and this parameter allows overriding the default user + scope. On OS X, there is a choice of three scopes: n: for network scope, if people + are sharing profiles over a network, l: local system scope, which installs the profile + for all users of a system, and the default u, which covers just the user + installing the profile. On Linux or Microsoft Vista, just the local + system l and user u scope are available. Note that + you may need to run dispwin with elevated privileges(sudo) to be + able to successfully use network or local system scope. This option + also applies to uninstalling a profile. Note that to install a user + profile for the root account, you will have to login as root (sudo + will not achieve this).
    +
    + -L: This + option fetches the current installed system profile for the chosen + display, and sets the display to the calibration tag ('vcgt' tag, if + any) in the profile. This is a convenient way of initializing the + display on system startup from the installed display profile, if the + system doesn't not do this automatically .
    +
    + -X: Daemon + mode (experimental). When running on a UNIX based system that used + the X11 Windowing System, this option runs dispwin in a "daemon" + mode where it monitors the given X11 server, waiting for any changes + in monitors that may require loading a matching ICC profile (ie. + such as re-configuring, plugging in a different monitor etc.)  + This only works if XRandR 1.2 is available on the server. By default + dispwin runs silently, and will not terminate. If the -v option is given, it will emit + messages to stdout to show what it is doing. When it is first + invoked, it will load the installed profiles of all the screens of + the given X11 server.
    +
    + The -D flag causes diagnostics to be printed + to stdout. A level can be set between 1 .. 9, that may give + progressively more verbose information. This can be useful in + tracking down why an operation fails.
    +
    + The final optional parameter on the command line + is the name of an ICC profile that contains a Video LUT vcgt tag, or an Argyll .cal format display calibration. If + this parameter is provided, then the selected display will be loaded + with the given calibration. If the -V + flag was given, then it is verified that this calibration is the + currently loaded one.  This may be useful in initializing a + system to the current calibration on system startup, although a + better way may be to install the profile (-I option), and then just use -L. Note that the vcgt tag + interpretation within Argyll is consistent with that of the + originators of the tag. Other ICC profile vcgt implementations may + not be so consistent.
    +
    + NOTE that on an X11 system, + if the environment variable ARGYLL_IGNORE_XRANDR1_2 + is set (ie. set it to "yes"), then the presence of the XRandR 1.2 + extension will be ignored, and other extensions such as Xinerama and + XF86VidMode extension will be used. This may be a way to work around + buggy XRandR 1.2 implementations.
    +
    + NOTE     on MSWin systems that you will have to disable any + other calibration installer program if you want to be able to + control calibration using dispwin. Note also that there are other + programs that will interfere with calibration loading, such as + igfxpers.exe that gets installed with nVidia "Optimus" technology.
    +
    +
    +
    +
    + + diff --git a/doc/fakeread.html b/doc/fakeread.html index 2a7b5c0..376e971 100644 --- a/doc/fakeread.html +++ b/doc/fakeread.html @@ -3,7 +3,7 @@ fakeread + charset=windows-1252"> @@ -34,6 +34,9 @@ style="font-family: monospace;">profile.[icm|mpp|ti3] + + + inoutfile
     -v @@ -44,24 +47,45 @@ Video encode device input to sepration as:
         n              + + + normal 0..1 full range RGB levels (default)
         t              + + + (16-235)/255 "TV" RGB levels
         6              + + + Rec601 YCbCr SD (16-235,240)/255 "TV" levels
         7              + + + Rec709 1125/60Hz YCbCr HD (16-235,240)/255 "TV" levels
         5              + + + Rec709 1250/50Hz YCbCr HD (16-235,240)/255 "TV" levels
         2              + + + Rec2020 YCbCr UHD (16-235,240)/255 "TV" levels
         C              + + + Rec2020 Constant Luminance YCbCr UHD (16-235,240)/255 "TV" levels
     -p separation.icm Use device link separation @@ -69,7 +93,13 @@  -E flag           Video decode separation device output. See -e above
    -  -k file.cal       +  -Z nbits              Quantize test values to fit in nbits
    +      -k file.cal       + + + Apply calibration (include in .ti3 output)
     -i file.cal       Include calibration in .ti3 output, but don't apply it
    @@ -82,32 +112,42 @@  -0 pow            Apply power to device chanel 0-9
    -  -b output.icm     Apply - BT.1886-like mapping with effective gamma 2.2
    -  -b g.g:output.icm Apply BT.1886-like mapping with - effective gamma g.g
    -  -B output.icm     Apply - BT.1886 mapping with technical gamma 2.4
    -  -B g.g:output.icm Apply BT.1886 mapping with - technical gamma g.g
    +  -B + display.icm          + Use BT.1886 source EOTF with technical gamma 2.4
    +  -b g.g:display.icm      Use + BT.1886-like source EOTF with effective gamma g.g
    +  -b p.p:g.g:display.icm  Use effective gamma g.g + source EOTF with p.p prop. output black point offset
    +  -g g.g:display.icm      Use + effective gamma g.g source EOTF with all output black point + offset
     -I intent         r = relative colorimetric, a = absolute (default)
     -A L,a,b          Scale black point to target Lab value
     -l                + + + Output Lab rather than XYZ
     -s                + + + Lookup     MPP - spectral values
    + href="File_Formats.html#MPP">MPP     spectral values
     -R level          Add average random deviation of <level>% to output PCS values
     -u                + + + Make random deviations have uniform distributions rather than normal
     -S @@ -130,6 +170,9 @@   + + +   Base name for input[    .ti1]/output[ The -E flag applies a Video decoding to the output of the separation.   See - -e for the list of decodings.
    + + + + -e for the list of decodings. Setting a + video encoding for output will also set quantization of 8 bits (see + -Z flag below). If your video connection is better than 8 bits (ie. + 10 or 12 bits), then you may wish to raise this default.
    +
    + -Z nbits Normally the target device values + are floating point numbers that may get rounded and quantized in the + process of printing them or reproducing them on the display device. + If some of this quantization can be accounted for, it may improve + the accuracy of the resulting profile, and the Q parameter allows this + quantization to be specified. The parameter is the number of binary + digits (bits) that the device values should be quantized to. An idea + of the number of bits of precision that makes its way to your + display can be obtained by using dispcal -R If + Video encoding is selected (see -E flag above), then 8 bits is + selected by default. On systems using an VGA connection or Display + Port with a graphics card with VideoLUT entries with greater than 8 + bits depth, or if using the MadVR rendered with dithering, then a + higher bit depth is typically possible.

    The -k file.cal parameter specifies a - calibration file created by printcal or dispcal, and the supplied calibration + calibration file created by printcal or + dispcal, and the supplied calibration curves will be applied to the chart device values after any separation and before the device profile. This allows emulating a system that uses per device channel calibration. The calibration @@ -193,26 +258,24 @@ computation of ink limits.

    The -i file.cal parameter specifies a - printer calibration file created by printcal or dispcal, and the - calibration curves will be included in the included in the resulting - .ti3 file, so that they can be passed through to the ICC profile, to - allow accurate computation of ink limits. The calibration printcal + or dispcal, and the calibration curves + will be included in the included in the resulting .ti3 file, so that + they can be passed through to the ICC profile, to allow accurate + computation of ink limits. The calibration is not applied to tchart values. Note that if the supplied ICC profile contains VCGT calibration curves, that these will be included in the resulting .ti3 by default.

    The -K file.cal parameter specifies - a calibration file created by printcal or dispcal, and the - inverse of the supplied calibration curves will be applied to the - chart device values after any separation and before the device - profile. This allows for undoing calibration curves that may be part - of a video calibration device link, so that the (calibrated device - value) device profile will work as expected.
    + a calibration file created by printcal + or dispcal, and the inverse of the + supplied calibration curves will be applied to the chart device + values after any separation and before the device profile. This + allows for undoing calibration curves that may be part of a video + calibration device link, so that the (calibrated device value) + device profile will work as expected.

    The -r parameter is a way of simulating instability in the behaviour of the @@ -230,59 +293,18 @@ them to the power of the parameter. This applies a transfer curve to the simulated device response.

    - The -b output.icm flag applies extra input - processing, applying BT.1886-like - - - - - - - - - - - - video gamma mapping using an effective gamma of 2.2 by default, and - overridable using -b g.g:output.icm where g.g is the - gamma. output.icm is the display ICC profile that provides - the black point that the BT.1886 curves will target. The gamma is an - effective gamma, meaning that its effect on 50% input is the same as - that of a pure power curve, in spite of any black offset added by - BT.1886. This has the benefit of making the overall effect of - brightness independent of the black level of the display. Setting an - effective gamma other than 2.2 is one way of making the viewing - condition adjustment for the different conditions of video encoding - and decoding, or for modelling the source colorspace as a rendering - on a video display. BT.1886 will only work with matrix type input - profiles. Typically this will be used to create a verification test + The -[b|B|g|G] [p.p:][g.g:]display.icm + series of options, substitutes an alternative EOTF (Electro-Optical + Transfer Function) for the one specified by the matrix input + profile. display.icm is the display ICC profile that + provides the black point that the gamma curve curves will target. + Typically these options will be used to create a verification test set for checking the operation of a device link or 3dLut created - using collink, using the same BT.1886 - parameters.
    -
    - The -B output.icm flag applies extra - input processing, applying BT.1886-like - - - - - - - - - - - - video gamma mapping using a gamma of 2.4 by default, and overridable - using -B g.g:output.icm where g.g is the gamma. output.icm - is the display ICC profile that provides the black point that the - BT.1886 curves will target. The gamma is the technical gamma, or - power applied to the input image, and this means that its effect on - 50% input will depend on the black level of the display, making the - overall brightness somewhat unpredictable. For a more predictable - effect, use -b.
    + using collink, using the same gamma + curve parameters. See collink -I b + for a full explanation of these parameters, and Verifying Video Calibration for more + detail.

    The -I parameter allows changing the intent used in looking up the ICC diff --git a/doc/i1proHiRes.html b/doc/i1proHiRes.html index d6d8078..d6eef6a 100644 --- a/doc/i1proHiRes.html +++ b/doc/i1proHiRes.html @@ -3,7 +3,7 @@ The i1pro Hi Res. Mode + charset=windows-1252"> @@ -42,6 +42,8 @@ + + width at half maximum) of about 25nm. Doing a measurement at 3.3nm resolution reveals that the optical limit seems to be about 15nm, so there is some hope of improvement from that perspective.

    @@ -56,7 +58,7 @@ which seems to have a diffraction grating/light sensor with a less smooth spectral efficiency curve than the Rev A - D models, the task of up-sampling the emissive calibration data with sufficient - accuracy is a more difficult.
    + accuracy is more difficult.

    The verification experiment

    @@ -77,6 +79,8 @@ href="http://www.jeti.com/cms/index.php/instruments-55/radiometer/specbos-1211"> + + specbos 1211 reference Tele-Spectro-Radiometer.

    2) Using an i1pro2 in standard 10nm mode.
    @@ -157,13 +161,17 @@ href="http://www.jeti.com/cms/index.php/instruments-55/radiometer/specbos-1211"> improve colorimetric measurement accuracy of display devices. Accuracy may conceivably be improved a little more than indicated by this experiment for i1pro rev A-D instruments which have a smoother - diffraction grating/light sensor characteristic, or it is also + diffraction grating/light sensor characteristic, but it is also conceivable that an unfortunate combination of display spectra and - the i1pro2 may result in reduced accuracy. The High Resolution mode - is primarily useful for showing more spectral detail, and should - probably not be used for colorimetric measurement when the highest - possible robustness and reliability is desired. The potential for - improved accuracy may be of benefit in other situations though.
    + the i1pro2 may result in reduced accuracy. More extensive testing of + a range of instruments and illuminants would be needed to allay such + a concern.
    +
    + In summary: the High Resolution mode is unquestionably useful + for showing more spectral detail, and demonstrates promise of + improved accuracy, but should probably not be used used for + colorimetric measurement when the highest possible confidence is + desired.

    Raw Data:

    The raw measurement data is available in this .ti3 archive.
    diff --git a/doc/iccgamut.html b/doc/iccgamut.html index fe555cf..47df32c 100644 --- a/doc/iccgamut.html +++ b/doc/iccgamut.html @@ -3,18 +3,21 @@ iccgamut + charset=windows-1252">

    xicc/iccgamut


    - Create a gamut file or VRML file  of the color gamut of an ICC + Create a gamut file or X3DOM file  of the color gamut of an ICC profile.
    iccgamut allows creation of gamut files from the forward or backwards table of an ICC profile, in Lab or CIECAM02 Jab colorspace, and can also representing the - gamut as a VRML file.
    + gamut as a X3DOM file.
    +
    + See 3D Viewing + Format for switching to VRML or X3D output format.

    Usage

    iccgamut [-options]
     -d sres       Surface resolution @@ -31,23 +36,21 @@  -w            emit - - - VRML .wrl file as well as CGATS .gam file

     -n            Don't - add VRML axes or white/black point
    -  -k            -Add + add X3DOM axes or white/black point
    +  -k            +Add - VRML markers for prim. & sec. "cusp" points

     -f function   f = forward*, b = backwards

    @@ -74,6 +79,8 @@ r + + = reverse (priority: monochrome > matrix > lut)
     -p oride
               + +   pc - Critical print evaluation environment (ISO-3664 P1)
    @@ -120,6 +133,8 @@ either + +     mt - Monitor in typical work environment
            @@ -127,6 +142,8 @@ either + +   mb - Monitor in bright work environment
          @@ -154,6 +171,8 @@ s:surround   + + n = auto, a = average, m = dim, d = dark,
                   @@ -161,6 +180,8 @@ s:surround   + +      c = transparency (default average)
             @@ -168,6 +189,8 @@ w:X:Y:Z      + + Adapted white point as XYZ (default media white)
             @@ -175,6 +198,8 @@ w:x:y        + + Adapted white point as x, y
             @@ -182,6 +207,8 @@ a:adaptation + + Adaptation luminance in cd.m^2 (default 50.0)
             @@ -190,6 +217,8 @@ Background + + % of image luminance (default 20)
             l:imagewhite Image white in cd.m^2 if surround = auto (default 250)
             @@ -208,11 +239,15 @@ f:flare               + + g:X:Y:Z      Glare color as XYZ (default media white)
             + + g:x:y        Glare color as x, y
     -s             @@ -220,6 +255,8 @@ Create + + special cube surface topology plot
    profilegamut [.gam] and/or VRML [.wrl] file.
    + monospace;" href="File_Formats.html#X3DOM">X3DOM [.x3d.html] file. +

    Comments

    The parameters are all those that control which table in the ICC profile to use, as well as what color space to convert it to.
    @@ -246,11 +284,11 @@ Create and is a good place to start. Small values may take a lot of time to generate, and will produce big files.

    - The -w flag causes a VRML file to be produced, as well as a + The -w flag causes a X3DOM file to be produced, as well as a gamut file.

    The -n flag suppresses the L*a*b* axes being created in the - VRML.
    + X3DOM.

    The -k flag adds markers for each of the primary and secondary "cusp" points (Red, Yellow, @@ -332,7 +370,7 @@ Create
    and the resulting files will be profile.gam and profile.wrl.
    + underline;">profile.x3d.html    .

    To create a gamut suitable for CIECAM02  gamut mapping space in colprof or collink, something like
    diff --git a/doc/iccgamutmapping.html b/doc/iccgamutmapping.html index d180372..8deab44 100644 --- a/doc/iccgamutmapping.html +++ b/doc/iccgamutmapping.html @@ -1,163 +1,210 @@ - - About ICC profiles and Gamut Mapping - - - -

    About ICC profiles and Gamut Mapping

    -

    How ICC profiles support different intents

    -cLUT (Color Lookup Table) based ICC profiles support multiple intents by having a table for each -intent. In a typical device cLUT profile, there are up to 6 cLUT's, -three for input (AtoB tables, that convert from device space to PCS -(Profile connection space)), and three for output (BtoA tables, that -convert from PCS to device space). The tables allow the use of -different color transforms, each transform being tailored for a -different effect:
    -
    -AtoB0, BtoA0:   Perceptual
    -AtoB1, BtoA1:   Colorimetric
    -AtoB2, BtoA2:   Saturation
    -
    -The colorimetric intent is meant to convey the exact device color -behaviour, without any gamut mapping. Typically it is used to store the -devices behaviour (characterization), and is also used where exact -color reproduction is required, such as for proofing. The Colorimetric -tables double up for both relative colorimetric and -absolute colorimetric with the application of a white point restoration.
    -
    -The Perceptual and Saturation tables are meant to contain gamut mapping -combined with the device characterization. The allowance for this in -both the AtoB direction, as well as the BtoA direction permits a -profile to gamut map from the device gamut to some intermediate gamut, -and then from the intermediate gamut to the device gamut.
    -
    -[Note that Shaper/Matrix profiles are always Colorimetric intent, since -there is only a single transformation, and it does not have the -necessary flexibility to accommodate gamut mapping.]
    -

    ICC Version 2 behaviour
    -

    -Apart from defining the general purpose of the different tables, the -ICC Version 2 specification doesn't specify exactly how they are to -achieve this, so it is up to the profile maker to make a choice in this -regard. There is no common gamut boundary specified for the PCS, and -such an approach limits the achievable intents in any case (see ICC -Version 4 behaviour for an explanation why).
    -
    -What I've chosen to do with Argyll profiles, is to make all the AtoB -tables the same as colorimetric. This means that the conversion used -for the source profile is always colorimetric, and also means that the -source gamut seen by the destination profile is the source colorspace -gamut. This means that the gamut mapping is done solely in the BtoA -tables, -and that their task is to map the source colorspace gamut to the -destination colorspace gamut. So to construct the perceptual and -saturation intent mapping tables, a source profile or source gamut -needs to be specified, so that a gamut mapping can be constructed.
    -
    -The advantages of this approach is that the behaviour is precisely -defined, a full range of gamut mapping options is available, and -compatibility with matrix profiles (which do not have gamut mapping -transforms) and other foreign profiles can be assured, by simply using -such profiles as colorimetric sources. The main disadvantage is that -the gamut mapping will only operate exactly as intended when the -profile is linked with the source profile it was setup for. This is -really a fundamental limitation of the idea of having pre-computed -gamut mapping color transforms, that the ICC profile format was -intended to support.
    -
    -Some non-Argyll profile have gamut mapping transforms in their -Perceptual and Saturation A2B tables, and this means that the apparent -gamut of a source through these tables may be different to the actual -device gamut. To accommodate using these profiles with CMM's (Color -Management Modules) that do not permit the separate choice of intent -tables for the source and destination profiles, Argyll will by default -use the gamut defined by the source profile perceptual table to -create the gamut mapping of the destination perceptual table, and the -source saturation table to make the destination saturation table. Note -that this can affect the exact nature of the gamut mapping, the -distortion of the source gamut changing the apparent relationship -between it and the destination gamut - see "ICC Version 4 behavior" for -an illustration of the kind of changes this causes. [This default can -be overridden though using the colprof -nP and -nS flags.]
    -

    ICC Version 4 behaviour

    -(Note that Argyll does not currently support ICC V4)
    -
    -By default, ICC Version 4 profile operate exactly the same as the ICC -V2 profile in regard to gamut mapping. A slight adjustment was made to -the permitted tag contents, to allow things like Display profiles to -contain the full range of AtoB and BtoA tables, so that they could also -be gamut mapped. But an optional part of ICCV4, is to use the Profile Reference Medium Gamut -(PRMG) as an -intermediate gamut boundary between the source colorspace, and the -destination colorspace. If this option is used, then an additional tag -in the ICCV4 profile indicates that this is the case. This then solves -the problem of the gamut mapping having to know the source and -destination gamuts to operate. Instead, the gamut mapping is split into -two parts, the first where the source gamut to RMG is done by the AtoB -tables, and then the RMG to destination gamut is done by the BtoA -tables. Profiles can therefore be mix and matches, while retaining true -gamut mapping.
    -
    -This approach has a number of drawbacks though. One is that the colors -get gamut mapped twice. Gamut mapping is sometimes not very precise, -and the geometry of the transforms may not cancel out, especially since -different profile vendors may choose different algorithms in their -gamut mapping. By "cancel out", I mean that even if you were linking -the same source colorspace to the same destination colorspace, the -gamut may be expanded (say) in the process of mapping to the PRMG, and -then compressed again in mapping from the RMG to the device space, and -these expansions and compressions may not quite match. Given that the -PRMG is a relatively large gamut, larger than many real devices actual -behavior, this sort of expansion and re-compression will be the normal -thing.
    -
    -The chief drawback, is that only one (non colorimetric) intent can -really be supported, that of saturation.
    -
    -The typically expected behaviour of perceptual intent gamut mapping, is -to -compress any areas of the source gamut that lie outside the destination -gamut, but for areas that fall within the destination gamut, change -them as little as possible, consistent with keeping smooth and -proportional with respect to the compressed colors. This preserves the -source "look" as much as -possible, while ensuring that out of gamut colors are smoothly brought -within the destination gamut.
    -
    -Typical behavior of a saturation intent, is (at least), to not only -compress out of gamut source colors to fit within the destination, but -to expand any source boundary that falls within the destination gamut -outwards match the destination gamut. Some practical saturation gamut -mappings may go further than this, and expand a little beyond the -destination gamut to ensure fully saturated boundary colors, and also -enhance the saturation of all colors mapped through it.
    -
    - By mapping the source gamut to -the RMG in the A2B, all information about what areas of the source -gamut are -inside or outside of the destination gamut are lost, so the destination -gamut mapping can not known which colors may be left unchanged, and -which really need compressing. All it can do is map the RMG to match -the destination gamut, -thereby effecting a saturation style intent.
    -
    -Once again, this is a fundamental limitation of using pre-computed -gamut mappings. The only effective way of overcoming such limitations -is to move to a more active color management architecture, in which -gamut mappings are computed at link time, to accommodate the actual -source and destination gamuts.
    -
    -
    -Illustration of perceptual and saturation gamut mapping.
    -
    -
    -
    -
    -
    - + + About ICC profiles and Gamut Mapping + + + +

    About ICC profiles and Gamut Mapping

    +

    How ICC profiles support different intents

    + cLUT (Color Lookup Table) based ICC profiles support multiple intents by having a table for + each + intent. In a typical device cLUT profile, there are up to 6 cLUT's, + three for input (AtoB tables, that convert from device space to PCS + (Profile connection space)), and three for output (BtoA tables, that + convert from PCS to device space). The tables allow the use of + different color transforms, each transform being tailored for a + different effect:
    +
    + AtoB0, BtoA0:   Perceptual
    + AtoB1, BtoA1:   Colorimetric
    + AtoB2, BtoA2:   Saturation
    +
    + The colorimetric intent is meant to convey the exact device color + behaviour, without any gamut mapping. Typically it is used to store + the + devices behaviour (characterization), and is also used where exact + color reproduction is required, such as for proofing. The + Colorimetric + tables double up for both relative colorimetric and + absolute colorimetric with the application of a white point + restoration.
    +
    + The Perceptual and Saturation tables are meant to contain gamut + mapping + combined with the device characterization. The allowance for this in + both the AtoB direction, as well as the BtoA direction permits a + profile to gamut map from the device gamut to some intermediate + gamut, + and then from the intermediate gamut to the device gamut.
    +
    + [Note that Shaper/Matrix profiles are always Colorimetric intent, + since + there is only a single transformation, and it does not have the + necessary flexibility to accommodate gamut mapping.]
    +

    ICC Version 2 behaviour
    +

    + Apart from defining the general purpose of the different tables, the + ICC Version 2 specification doesn't specify exactly how they are to + achieve this, so it is up to the profile maker to make a choice in + this + regard. There is no common gamut boundary specified for the PCS, and + such an approach limits the achievable intents in any case (see ICC + Version 4 behaviour for an explanation why).
    +
    + What I've chosen to do with Argyll profiles, is to make all the AtoB + tables the same as colorimetric. This means that the conversion used + for the source profile is always colorimetric, and also means that + the + source gamut seen by the destination profile is the source + colorspace + gamut. This means that the gamut mapping is done solely in the BtoA + tables, + and that their task is to map the source colorspace gamut to the + destination colorspace gamut. So to construct the perceptual and + saturation intent mapping tables, a source profile or source gamut + needs to be specified, so that a gamut mapping can be constructed.
    +
    + The advantages of this approach is that the behaviour is precisely + defined, a full range of gamut mapping options is available, and + compatibility with matrix profiles (which do not have gamut mapping + transforms) and other foreign profiles can be assured, by simply + using + such profiles as colorimetric sources. The main disadvantage is that + the gamut mapping will only operate exactly as intended when the + profile is linked with the source profile it was setup for. This is + really a fundamental limitation of the idea of having pre-computed + gamut mapping color transforms, that the ICC profile format was + intended to support.
    +
    + Some non-Argyll profile have gamut mapping transforms in their + Perceptual and Saturation A2B tables, and this means that the + apparent + gamut of a source through these tables may be different to the + actual + device gamut. To accommodate using these profiles with CMM's (Color + Management Modules) that do not permit the separate choice of intent + tables for the source and destination profiles, Argyll will by + default + use the gamut defined by the source profile perceptual table to + create the gamut mapping of the destination perceptual table, and + the + source saturation table to make the destination saturation table. + Note + that this can affect the exact nature of the gamut mapping, the + distortion of the source gamut changing the apparent relationship + between it and the destination gamut - see "ICC Version 4 behavior" + for + an illustration of the kind of changes this causes. [This default + can + be overridden though using the colprof -nP and -nS flags.]
    +

    ICC Version 4 behaviour

    + (Note that Argyll does not currently support ICC V4)
    +
    + By default, ICC Version 4 profile operates similarly to the ICC + V2 profile in regard to gamut mapping, with the exception that a + minimally specified reference medium and reference viewing + conditions are introduced for perceptual (and presumably saturation) + tables, allowing at least the luminance range to have a well defined + behavior when mixing and matching the perceptual A2B and B2A tables + of different profiles. A slight adjustment was made to + the permitted tag contents, to allow things like Display profiles to + contain the full range of AtoB and BtoA tables, so that they could + also + be gamut mapped. An optional part of ICCV4, introduces a more + comprehensively specified Profile + Reference Medium Gamut + (PRMG) as an + intermediate gamut boundary between the source colorspace, and the + destination colorspace. If this option is used, then an additional + tag + in the ICCV4 profile indicates that this is the case. This then + solves + the problem of the gamut mapping having to know the source and + destination gamuts to operate. Instead, the gamut mapping is split + into + two parts, the first where the source gamut to RMG is done by the + AtoB + tables, and then the RMG to destination gamut is done by the BtoA + tables. Profiles can therefore be mix and matches, while retaining + true + gamut mapping.
    +
    + This approach has a number of drawbacks though. One is that the + colors + get gamut mapped twice. Gamut mapping is sometimes not very precise, + and the geometry of the transforms may not cancel out, especially + since + different profile vendors may choose different algorithms in their + gamut mapping. By "cancel out", I mean that even if you were linking + the same source colorspace to the same destination colorspace, the + gamut may be expanded (say) in the process of mapping to the PRMG, + and + then compressed again in mapping from the RMG to the device space, + and + these expansions and compressions may not quite match. Given that + the + PRMG is a relatively large gamut, larger than many real devices + actual + behavior, this sort of expansion and re-compression will be the + normal + thing.
    +
    + The chief drawback, is that only one (non colorimetric) intent can + really be supported, that of saturation.
    +
    + The typically expected behavior of perceptual intent gamut mapping, + is + to + compress any areas of the source gamut that lie outside the + destination + gamut, but for areas that fall within the destination gamut, change + them as little as possible, consistent with keeping smooth and + proportional with respect to the compressed colors. This preserves + the + source "look" as much as + possible, while ensuring that out of gamut colors are smoothly + brought + within the destination gamut.
    +
    + Typical behavior of a saturation intent, is (at least), to not only + compress out of gamut source colors to fit within the destination, + but + to expand any source boundary that falls within the destination + gamut + outwards match the destination gamut. Some practical saturation + gamut + mappings may go further than this, and expand a little beyond the + destination gamut to ensure fully saturated boundary colors, and + also + enhance the saturation of all colors mapped through it.
    +
    +  By mapping the source gamut to + the RMG in the A2B, all information about what areas of the source + gamut are + inside or outside of the destination gamut are lost, so the + destination + gamut mapping can not known which colors may be left unchanged, and + which really need compressing. All it can do is map the RMG to match + the destination gamut, + thereby effecting a saturation style intent.
    +
    + Once again, this is a fundamental limitation of using pre-computed + gamut mappings. The only effective way of overcoming such + limitations + is to move to a more active color management architecture, in which + gamut mappings are computed at link time, to accommodate the actual + source and destination gamuts.
    +
    +
    + Illustration of perceptual and saturation gamut mapping.
    +
    +
    +
    +
    +
    + diff --git a/doc/illumread.html b/doc/illumread.html index 0dcf5bd..9b65b2f 100644 --- a/doc/illumread.html +++ b/doc/illumread.html @@ -1,271 +1,309 @@ - - - - illumread - - - - -

    spectro/illumread

    -

    Summary

    - Use an instrument or instruments to measure an illuminant spectrum, - including estimate its Ultra Violet content. A combination of direct - illumination readings and readings from a piece of paper having some - FWA content are used for this. (If the UV content is not needed, or - a suitable instrument is not available, then spotread should be used instead.)
    -

    Usage Summary

    - illumread [-options] - illuminant.sp
    -  -v + + + illumread + + + + +

    spectro/illumread

    +

    Summary

    + Use an instrument or instruments to measure an illuminant spectrum, + including estimate its Ultra Violet content. A combination of direct + illumination readings and readings from a piece of paper having some + FWA content are used for this. (If the UV content is not needed, or + a suitable instrument is not available, then spotread should be used instead.)
    +

    Usage Summary

    + illumread [-options] + illuminant.sp
    +  -v                -     Verbose mode
    -  -S -              -       Plot the readings in a graph window.
    -  -c comport
    +  -S +              +       Plot the readings in a graph window.
    +  -c comport            Set - COM port, 1..4 (default 1)
    -
    +      -N                    Disable - initial calibration of instrument if possible
    -  -H -              -       Use high resolution spectrum mode - (if available)
    + + + + initial calibration of instrument     if possible
    +  -H +              +       Use high resolution spectrum mode + (if available)
     -Y r                  - Set refresh measurement mode
    -      -W n|h|x              Override - serial port flow control: n = none, h = HW, x = Xon/Xoff
    -  -D [level] -            - Print debug diagnostics to stderr
    -  
    +      -T +                    + + + Test mode - restore & save measurements to
    +                         + + *_i.sp, *_r.sp, *_p.sp, *_mpir.sp, *_cpir.sp files
    +      -D [level] +            + Print debug diagnostics to stderr
    +   illuminant.sp         File - to save measurement to
    -
    -

    Usage Details and Discussion

    - illumread uses a suitable instrument to read an illuminant - spectrum, and uses an indirect method to estimate the Ultra Violet - content of the illuminant, so as to provide better accuracy with FWA compensation. An instrument or combination - of instruments capable of spectral measurement of both emissive - measurement and reflective measurement without a U.V. filter is - required for this.
    -
    - The -v flag causes extra information to be - printed out during chartread operation.
    -
    - The -S flag enables the plotting of the - spectral reflectance/transmittance values. You must select the plot - window and strike a key in it to continue with another measurement.
    -
    - The instrument is assumed to communicate through a - USB or serial communication port, and the initial port can be - selected with the -c option, if the instrument is not - connected to the first port. If you invoke illumread so as to display the - usage information (i.e. "illumread -?" or "illumread --"), then the - discovered USB and serial ports will be listed. On UNIX/Linux, a - list of all possible serial ports are shown, but not all of them may - actually be present on your system.
    -
    - -N Any - instrument that requires regular calibration will ask for - calibration on initial start-up. Sometimes this can be awkward if - the instrument is being mounted in some sort of measuring jig, or - annoying if several sets of readings are being taken in quick - succession. The -N - suppresses this initial calibration if a valid and not timed out - previous calibration is recorded in the instrument or on the host - computer. It is advisable to only use this option on the second and - subsequent measurements in a single session.
    -
    - The -H - option turns on high resolution spectral mode, if the instrument - supports it. See Operation of particular - instruments for more details.
    -
    - The -Y r - option turns on refresh mode measurement, if the instrument supports - it. This may improve the repeatability of measurements of - illuminants that have a repetitive flicker.
    -
    - The -W n|h|x - parameter overrides the default serial communications flow control - setting. The value n turns - all flow control off, h - sets hardware handshaking, and x - sets Xon/Xoff handshaking. This commend may be useful in workaround - serial communications issues with some systems and cables.
    -
    - The -D flag causes communications and other - instrument diagnostics to be printed to stdout. A level can be set - between 1 .. 9, that may give progressively more verbose - information, depending on the instrument. This can be useful in - tracking down why an instrument can't connect.
    -
    - The illuminant.sp is the name of the file to save the - resulting illuminant spectrum to. The format used is .sp.
    -
    -

    - Unlike the other measurement utilities, illumread doesn't connect to the instrument until it - is about to make a measurement. This allows for the possibility of - using a different instrument for each measurement.
    -
    - It will display a menu:
    -
    - Press 1 .. 6
    - 1) Measure direct illuminant
    - 2) Measure illuminant reflected from paper
    - 3) Measure paper
    - 4) Select another instrument, Currently 1 'usb:/bus4/dev2/ - (GretagMacbeth i1 Pro)'
    - 5) Compute illuminant spectrum, average result with 0 previous - readings & save it
    - 6) Compute illuminant spectrum from this reading & save result
    - 7) Exit
    -
    - There are three measurements to be made, after which the illuminant - can be computed and saved. Before each measurement, the instrument - may need calibrating.
    -
    - The first measurement needs a spectral instrument capable of reading - in an ambient or emissive mode. For instance, a Spectrolino, Eye-One - Pro or ColorMunki would be suitable instruments.
    -
    - The second measurement needs a spectral instrument capable of - reading in an projector or emissive mode. For instance, a - Spectrolino, Eye-One Pro or ColorMunki would be suitable - instruments.
    -
    - The third measurement needs a spectral instrument capable of reading - in reflective mode with UV included. For instance, a Spectrolino, - Eye-One Pro, DTP20, DTP22 or  DTP41 would be suitable - instruments, as long as they are not fitted with UV filters.
    -
    - To be able to estimate the level of Ultra Violet (UV) light in the - illuminant, a reasonable sized piece of white paper needs to be - used. The paper should have some noticeable level of FWA - (Fluorescent Whitener Additive, or Optical Brightening Agents) in - it, so that it responds to UV light. A piece of cheap copier paper - is ideal, since cheap paper is typically whitened with large amounts - of FWA. If the paper is thin (less than 160 gsm) then two or three - sheets should be used to prevent any background showing through. [If - the intention is to use the illuminant spectrum for proofing to a - particular paper, then an alternative might be to use a piece of the - intended paper for this purpose. It's unclear which may give a - better result.]
    -
    - The first measurement 1), - is to use either the ambient or emissive measurement mode to measure - the illumination directly.
    -
    -
    If the instrument supports an - ambient measurement capability, then it will be used. If the - insrument does not have an ambient mode, then an emissive - measurement mode can be used, although typically many illuminants - are too bright to directly point the instrument at. A work-around - is to reflect the illuminant from a spectrally flat white surface. - A good candidate for this is a piece of white, fine textured - polystyrene foam. [The suitability of a reflector can be checked - using spotread -S to - check that the reflection characteristic is close to flat.]
    -
    - Measuring AmbientMeasuring Ambient  Measuring Ambient
    -
    -
    - The second measurement 2), - is to measure the illuminant after it has reflected from the paper.
    -
    -
    This is done by placing the paper - such that it is uniformly illuminated with reasonable brightness, - and then placing the instrument so that it receives the reflected - light from the paper. This is typically achieved by placing the - instrument close to the paper at about 45º, so that it's - aperture has a clear view of the illuminated paper, but avoiding - shadowing the region that is in view.
    -
    - Measuring via - PaperMeasuring via Paper
    -
    -
    - The third measurement 3), - is to measure the paper directly using the instrument reflective - mode measurement.
    -
    Measuring Paper
    -
    - If a different instrument is needed, use 4) to select from the available instruments attached - to your computer.
    -
    - Once these three measurements have been made, then the illuminant - readings spectrum can be computed and save using 6), or a series of readings can - be made with each reading being averages with the previous readings - before saving it by using 5). - Note that the averaged readings will be weighted by their absolute - intensities, and that while the direct and indirect illumination - needs measuring for each reading, the same paper measurement can be - used each time.
    -
    - If plotting is enabled, a plot of the measured (black) and with - estimated UV (red) is plotted. This is followed by a plot showing - measured paper reflectance (black) and the FWA calculated paper - reflectance (red).
    -
    -
    - Illumread can then be terminated using 7).
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    - - + + + + to save measurement to
    +
    +

    Usage Details and Discussion

    + illumread uses a suitable instrument to read an illuminant + spectrum, and uses an indirect method to estimate the Ultra Violet + content of the illuminant, so as to provide better accuracy with FWA compensation. An instrument or combination + of instruments capable of spectral measurement of both emissive + measurement and reflective measurement without a U.V. filter is + required for this.
    +
    + The -v flag causes extra information to be + printed out during chartread operation.
    +
    + The -S flag enables the plotting of the + spectral reflectance/transmittance values. You must select the plot + window and strike a key in it to continue with another measurement.
    +
    + The instrument is assumed to communicate through a + USB or serial communication port, and the initial port can be + selected with the -c option, if the instrument is not + connected to the first port. If you invoke illumread so as to display the + usage information (i.e. "illumread -?" or "illumread --"), then the + discovered USB and serial ports will be listed. On UNIX/Linux, a + list of all possible serial ports are shown, but not all of them may + actually be present on your system.
    +
    + -N Any + instrument that requires regular calibration will ask for + calibration on initial start-up. Sometimes this can be awkward if + the instrument is being mounted in some sort of measuring jig, or + annoying if several sets of readings are being taken in quick + succession. The -N + suppresses this initial calibration if a valid and not timed out + previous calibration is recorded in the instrument or on the host + computer. It is advisable to only use this option on the second and + subsequent measurements in a single session.
    +
    + The -H + option turns on high resolution spectral mode, if the instrument + supports it. See Operation of particular + instruments for more details.
    +
    + The -Y r + option turns on refresh mode measurement, if the instrument supports + it. This may improve the repeatability of measurements of + illuminants that have a repetitive flicker.
    +
    + The -W n|h|x + parameter overrides the default serial communications flow control + setting. The value n turns + all flow control off, h + sets hardware handshaking, and x + sets Xon/Xoff handshaking. This commend may be useful in workaround + serial communications issues with some systems and cables.
    +
    + The -T flag invokes the test mode. In test + mode the three measurements are saved to files illuminant_i.sp + (Illuminant spectrum), illuminant_r.sp (Illuminant + off paper spectrum), and illuminant_p.sp (Instrument + measured paper reflectance spectrum), and these will be loaded if + discovered, allowing a replay of the calculation without requiring + any measurement. In addition, two diagnostic files illuminant_mpir.sp + (Measured paper under illuminant spectrum) and illuminant_cpir.sp + + (Computed paper under illuminant spectrum) will be saved.
    +
    + The -D flag causes communications and other + instrument diagnostics to be printed to stdout. A level can be set + between 1 .. 9, that may give progressively more verbose + information, depending on the instrument. This can be useful in + tracking down why an instrument can't connect.
    +
    + The illuminant.sp is the name of the file to save the + resulting illuminant spectrum to. The format used is .sp.
    +
    +

    + Unlike the other measurement utilities, illumread doesn't connect to the instrument until it + is about to make a measurement. This allows for the possibility of + using a different instrument for each measurement.
    +
    + It will display a menu:
    +
    + Press 1 .. 6
    + 1) Measure direct illuminant
    + 2) Measure illuminant reflected from paper
    + 3) Measure paper
    + 4) Select another instrument, Currently 1 'usb:/bus4/dev2/ + (GretagMacbeth i1 Pro)'
    + 5) Compute illuminant spectrum, average result with 0 previous + readings & save it
    + 6) Compute illuminant spectrum from this reading & save result
    + 7) Exit
    +
    + There are three measurements to be made, after which the illuminant + can be computed and saved. Before each measurement, the instrument + may need calibrating.
    +
    + The first measurement needs a spectral instrument capable of reading + in an ambient or emissive mode. For instance, a Spectrolino, Eye-One + Pro or ColorMunki would be suitable instruments.
    +
    + The second measurement needs a spectral instrument capable of + reading in an projector or emissive mode. For instance, a + Spectrolino, Eye-One Pro or ColorMunki would be suitable + instruments.
    +
    + The third measurement needs a spectral instrument capable of reading + in reflective mode with UV included. For instance, a Spectrolino, + Eye-One Pro, DTP20, DTP22 or  DTP41 would be suitable + instruments, as long as they are not fitted with UV filters.
    +
    + To be able to estimate the level of Ultra Violet (UV) light in the + illuminant, a reasonable sized piece of white paper needs to be + used. The paper should have some noticeable level of FWA + (Fluorescent Whitener Additive, or Optical Brightening Agents) in + it, so that it responds to UV light. A piece of cheap copier paper + is ideal, since cheap paper is typically whitened with large amounts + of FWA. If the paper is thin (less than 160 gsm) then two or three + sheets should be used to prevent any background showing through. If + the intention is to use the illuminant spectrum for proofing to a + particular paper, then it's best to use the intended paper for this + purpose.
    +
    + The first measurement 1), + is to use either the ambient or emissive measurement mode to measure + the illumination directly.
    +
    +
    If the instrument supports an + ambient measurement capability, then it will be used. If the + insrument does not have an ambient mode, then an emissive + measurement mode can be used, although typically many illuminants + are too bright to directly point the instrument at. A work-around + is to reflect the illuminant from a spectrally flat white surface. + A good candidate for this is a piece of white, fine textured + polystyrene foam. [The suitability of a reflector can be checked + using spotread -S to + check that the reflection characteristic is close to flat.]
    +
    + Measuring AmbientMeasuring Ambient  Measuring Ambient
    +
    +
    + The second measurement 2), + is to measure the illuminant after it has reflected from the paper.
    +
    +
    This is done by placing the paper + such that it is uniformly illuminated with reasonable brightness, + and then placing the instrument so that it receives the reflected + light from the paper. This is typically achieved by placing the + instrument close to the paper at about 45º, so that it's aperture + has a clear view of the illuminated paper, but avoiding shadowing + the region that is in view.
    +
    + Measuring via + PaperMeasuring via Paper
    +
    +
    + The third measurement 3), + is to measure the paper directly using the instrument reflective + mode measurement.
    +
    Measuring Paper
    +
    + If a different instrument is needed, use 4) to select from the available instruments attached + to your computer.
    +
    + Once these three measurements have been made, then the illuminant + readings spectrum can be computed and save using 6), or a series of readings can + be made with each reading being averages with the previous readings + before saving it by using 5). + Note that the averaged readings will be weighted by their absolute + intensities, and that while the direct and indirect illumination + needs measuring for each reading, the same paper measurement can be + used each time.
    +
    + If plotting is enabled, a plot of the measured (black) and with + estimated UV (red) is plotted. This is followed by a plot showing + measured paper reflectance (black) and the FWA calculated paper + reflectance (red).
    +
    +
    + Illumread can then be terminated using 7).
    +
    +
    +
    +
    +
    +
    +
    +
    +
    +
    +
    + + diff --git a/doc/instruments.html b/doc/instruments.html index 0bcc62d..f5897d5 100644 --- a/doc/instruments.html +++ b/doc/instruments.html @@ -34,9 +34,25 @@ + + + + + + + - Tele-Spectro-Radiometer

    + Klein:
    +
    +     K10-A   +             +             +             +     - Display Colorimeter. Reported also to work with + the K-1, K-8 and  K-10
    +
    X-Rite:
        DTP20 "Pulse"                              @@ -64,6 +80,13 @@ + + + + + + + @@ -99,6 +122,13 @@ + + + + + + + @@ -134,6 +164,13 @@ + + + + + + + @@ -171,6 +208,13 @@ + + + + + + + @@ -206,6 +250,13 @@ + + + + + + + @@ -241,6 +292,13 @@ + + + + + + + @@ -276,6 +334,13 @@ + + + + + + + @@ -311,6 +376,13 @@ + + + + + + + @@ -400,6 +472,13 @@ + + + + + + + @@ -436,6 +515,13 @@ + + + + + + + @@ -481,6 +567,13 @@ + + + + + + + @@ -518,6 +611,13 @@ + + + + + + + @@ -560,6 +660,13 @@ + + + + + + + @@ -580,6 +687,12 @@        - display colorimeter (Note that the user must supply calibration data)
    +      Spyder 5   +                    +          +        - display colorimeter (Note + that the user must supply calibration + data)

    Other:
        Colorimètre @@ -608,6 +721,13 @@ + + + + + + + @@ -634,6 +754,13 @@ + + + + + + + @@ -940,6 +1067,13 @@ + + + + + + + @@ -995,8 +1129,8 @@ this measurement. A rough guide is as follows:

    - +
    @@ -1008,6 +1142,12 @@ + + + + @@ -1065,8 +1205,8 @@ style="font-weight: bold;">specbos 1211 and 1201 Tele-Spectro-Radiometer

    - JETI specbos 1211 + JETI specbos 1211


    Availability:

    @@ -1075,9 +1215,53 @@ href="http://www.jeti.com/">JETI  are currently available instruments. These are reference grade instruments capable of emissive and ambient measurements, and are often used - for monitor, projector and cinema calibration and - characterization, amongst many other uses.
    + for monitor, projector and cinema calibration & + characterization, and colorimeter calibration, amongst many other + uses.
    +

    +


    +

    +
    +

    Klein K10-A Colorimeter
    +

    + Klein K10-A
    +


    +     Availability:
    +
    +     The Klein K10-A from + + + + + + + Klein Instruments  + + + + + + + is a currently available instrument. It is noted for it's speed, + high precision, and ability to measure to very low light + levels.This is a high end instruments capable of contact and tele + - emissive, and ambient measurements, and are often used for + monitor, projector and cinema calibration and characterization.
    +

    +

    Note that unlike the operation of other instruments, the Ambient + mode is purely manual - the diffuser must be fitted and then the + appropriate calibration setting chosen (Typically with "Lux" in + the name).
    +

    +

    By default, more measurements are taken and averaged together + when the light level is low. This can be disabled and a single + measurement taken per reading, to gain maximum speed by using the + -Y A flag.

    +

    The K-1, K-8 and  K-10 are also + reported to work.

    +


    @@ -1354,6 +1538,13 @@ + + + + + + + @@ -1409,6 +1600,13 @@ + + + + + + + @@ -1445,6 +1643,13 @@ + + + + + + + @@ -1497,6 +1702,13 @@ Gretag + + + + + + + @@ -1739,6 +1951,13 @@ Gretag + + + + + + + @@ -1764,6 +1983,13 @@ Gretag + + + + + + + @@ -1798,6 +2024,13 @@ Gretag + + + + + + + @@ -1834,6 +2067,13 @@ Gretag + + + + + + + @@ -1897,6 +2137,13 @@ href="http://www8.hp.com/us/en/products/oas/product-detail.html?oid=5225568">HP + + + + + + + DreamColor instruments are also reported to work. They will appear as a be a the same as the i1Display Pro.
    @@ -1943,6 +2190,11 @@ href="http://www8.hp.com/us/en/products/oas/product-detail.html?oid=5225568">HP     p      Projector (Marantz HP Panasonic Projectors Hybrid EDR)

    + By default the integration time is adaptive, taking longer when the + light level is low. This can be disabled and a fixed integration + time used to gain maximum speed at the cost of greatly reduced low + light accuracy, by using the -Y A flag.
    +
    Note when measuring CRT displays:

    The small magnet in the ambient light cover used to signal what @@ -1991,6 +2243,13 @@ href="http://www.pantone.com/pages/products/product.aspx?pid=562&ca=2">Huey + + + + + + + @@ -2031,6 +2290,13 @@ href="http://www.pantone.com/pages/products/product.aspx?pid=562&ca=2">Huey + + + + + + + @@ -2067,6 +2333,13 @@ href="http://www.pantone.com/pages/products/product.aspx?pid=562&ca=2">Huey + + + + + + + @@ -2128,6 +2401,13 @@ href="http://www.pantone.com/pages/products/product.aspx?pid=562&ca=2">Huey + + + + + + + @@ -2164,6 +2444,13 @@ href="http://www.pantone.com/pages/products/product.aspx?pid=562&ca=2">Huey + + + + + + + @@ -2241,7 +2528,14 @@ href="http://www.pantone.com/pages/products/product.aspx?pid=562&ca=2">Huey - + + + + + + + + LCD display        A Liquid Crystal Display, that is of the Non-Refresh type. [Default, CB1]
        c    @@ -2269,6 +2563,13 @@ href="http://www.pantone.com/pages/products/product.aspx?pid=562&ca=2">Huey + + + + + + + @@ -2428,6 +2729,13 @@ href="http://www.pantone.com/pages/products/product.aspx?pid=562&ca=2">Huey + + + + + + + @@ -2473,6 +2781,13 @@ href="http://www.pantone.com/pages/products/product.aspx?pid=562&ca=2">Huey + + + + + + + @@ -2513,6 +2828,13 @@ href="http://www.pantone.com/pages/products/product.aspx?pid=562&ca=2">Huey + + + + + + + @@ -2529,6 +2851,222 @@ href="http://www.pantone.com/pages/products/product.aspx?pid=562&ca=2">Huey style="font-weight: bold;">Spyder4Elite and Spyder4Pro instruments, but is only capable of monochrome readings.
    +
    +
    +

    + Spyder 5 + colorimeter
    +
    + Spyder4
    +
    +     Availability:
    +
    +     The Spyder5Elite, Spyder5Pro and Spyder5Express are a currently + available instruments. The Spyder5Elite + and Spyder5Pro appear to be + identical hardware with different software from the manufacturer. + The Spyder5Express lacks + the ambient sensor.
    +
    +     Operation:
    +
    + These instruments are capable of using using CCSS (Colorimeter + Calibration Spectral Sample) files, and this also gives the + instrument the capability of using a non-default standard observer. + CCSS files can be created using the ccxxmake tool + using a spectrometer as a reference.
    +
    + Important Note about the + DataColor Spyder 5 vendor display type/calibration support:
    +
    + This instrument does not have a full range of display type + calibration selections available without the vendor supplied + calibration data for it.
    + This calibration data is not provided with Argyll, since it is not + available under a compatible license.
    + You can use CCSS files as an alternative (see above), or as the + purchaser of a Spyder 5 instrument you should have received a copy + of the calibration data along with the instrument or have been + directed to download it from the manufacturers website, and should + therefore be able to enable the full range of display type + selections in Argyll by using the oeminst tool.
    +
    + The Display Selections for this instrument are:
    +
    +     n | l     +    A non-refresh type display with a generic calibration + [Default, CB1].
    +     r | c        A + refresh type display with a generic calibration.[CB2]
    +
    + The Display Selections for this instrument when the manufacturers + calibration information has been installed is:
    +
    +     n        +      A non-refresh type display with a generic + calibration [Default, CB1].
    +     r        +      A refresh type display with a generic + calibration.[CB2]
    +     f    +          LCD, CCFL + Backlight                         + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + - normal gamut Liquid Crystal Display with standard Cold Cathode + Fluorescent Lamp backlight.
    +     L  +           Wide Gamut LCD, CCFL + Backlight      - wide gamut Liquid Crystal + Display with Cold Cathode Fluorescent Lamps backlight.
    +     e +             LCD, White + LED Backlight        +           - normal + gamut Liquid Crystal Display with a White LED backlight.
    +     B   + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +          Wide Gamut LCD, RGB LED + Backlight - wide gamut Liquid Crystal Display with RGB LED + backlight.
    +     x +             LCD, CCFL + Type 2 + Backlight              + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + - normal gamut Liquid Crystal Display with alternative Cold Cathode + Fluorescent Lamp backlight (Laptop ?)
    +
    + The ambient light sensor can be used with the Spyder5Elite and Spyder5Pro instruments, but is + only capable of monochrome readings.

    Colorimètre HCFR @@ -2563,6 +3101,13 @@ href="http://www.pantone.com/pages/products/product.aspx?pid=562&ca=2">Huey + + + + + + + @@ -2617,6 +3162,13 @@ href="http://www.pantone.com/pages/products/product.aspx?pid=562&ca=2">Huey + + + + + + + @@ -2653,6 +3205,13 @@ href="http://www.pantone.com/pages/products/product.aspx?pid=562&ca=2">Huey + + + + + + + @@ -2694,35 +3253,77 @@ href="http://www.pantone.com/pages/products/product.aspx?pid=562&ca=2">Huey    l                   + + + + + + + LCD, CCFL Backlight [Default]
       c                  + + + + + + + CRT display
       p                  + + + + + + + Projector
       e                  + + + + + + + LCD, White LED Backlight
       F                  + + + + + + + Factory matrix (For Calibration) [CB1]
       R                 + + + + + + + Raw Reading (For Factory matrix Calibration) [CB2]

    diff --git a/doc/invprofcheck.html b/doc/invprofcheck.html index 9851774..bd611b3 100644 --- a/doc/invprofcheck.html +++ b/doc/invprofcheck.html @@ -39,10 +39,10 @@ Show CIE94 delta E values
     -k           Show CIEDE2000 delta E values
     -w           -create VRML visualisation (profile.wrl)

     -x           -Use VRML axes
    +Use X3DOM axes
     -e           Color vectors acording to delta E
    @@ -60,7 +60,7 @@ table. A grid of device values is created, and the transform from PCS->device, and then device->PCS is computed in L*a*b* space. The average, maximum and RMS error delta E values are computed and displayed in the chosen delta E metric. A VRML plot of the error vectors can + href="File_Formats.html#X3DOM">X3DOM plot of the error vectors can be created. invprofcheck tries to only test in-gamut color values. Note that because it scans a device grid, for a CMYK device, the density of test points will be @@ -114,16 +114,16 @@ closer correspondence with perceived color differences than either CIE76 or CIE94 delta E values.

    -The -w creates a VRML 3D +The -w creates a X3DOM 3D visualization of the differences between the test points and the profiles prediction of the resulting colors.

    -The -x flag adds Lab axes to the VRML output.
    +The -x flag adds Lab axes to the X3DOM output.

    The -e flag causes the error -vectors in the VRML output to be color coded according to their +vectors in the X3DOM output to be color coded according to their lengths, from longest to shortest: yellow, red, magenta, blue, cyan and green.

    diff --git a/doc/mpplu.html b/doc/mpplu.html index 2f0b955..8d4e755 100644 --- a/doc/mpplu.html +++ b/doc/mpplu.html @@ -11,7 +11,7 @@

    Summary

    Lookup individual color values though an MPP profile. Also -create MPP gamut files or VRML +create MPP gamut files or X3DOM views.

    Usage

    mpplu [-v level] [-f func] @@ -63,9 +63,9 @@ data:
        Create gamut output
    -w         -    Create gamut VRML as well
    +    Create gamut X3DOM as well
    -n             -Don't add VRML axes
    +Don't add X3DOM axes
    -a n           Gamut transparency level
    -d @@ -78,7 +78,7 @@ surface detail level
         1 - check partial derivative for device input
                -     2 - create overlap diagnostic VRML gamut +     2 - create overlap diagnostic X3DOM gamut surface
    profile.mpp   Profile to be used
    @@ -157,15 +157,15 @@ description from the profile, creating a
    The -w flag causes the gamut surface to be generated in     VRML format + href="File_Formats.html#X3DOM">X3DOM format as well as .gam format.

    The -n flag suppresses the VRML axes.
    + style="font-weight: bold;">-n     flag suppresses the X3DOM axes.

    The -a n parameter sets a transparency -level in the VRML surface.
    +level in the X3DOM surface.

    The -d parameter controls the level of detail displayed in the gamut surface. The parameter roughly corresponds to a deltaE value, so diff --git a/doc/oeminst.html b/doc/oeminst.html index ffbc0f0..d1daccd 100644 --- a/doc/oeminst.html +++ b/doc/oeminst.html @@ -3,7 +3,7 @@ oeminst + charset=windows-1252"> @@ -16,7 +16,7 @@ list (-y option).
    For the Spyder 2, it can install the instrument manufacturers PLD firmware pattern, which is necessary for it to operate.
    - For the Spyder 4, it can enable the full range of manufacturers + For the Spyder 4 or 5, it can enable the full range of manufacturers colorimeter calibration selections, as well as install CCSS files.
    For the eye-one display 3 it can  locate and translate X-Rite .EDR files to CCSS files and install them to enable a full range of @@ -38,6 +38,7 @@ + Verbose
     -n                      @@ -49,6 +50,7 @@ + Don't install, show where files would be installed
     -c                      @@ -61,6 +63,7 @@ + Don't install, save files to current directory
     -S @@ -74,6 +77,7 @@ + Specify the install scope u = user (def.), l = local system]
     infile                  @@ -86,6 +90,7 @@ + setup.exe CD install file(s) or .dll(s) containing install files
     infile.[edr|ccss|ccmx]  @@ -97,6 +102,7 @@ + EDR file(s) to translate and install or CCSS or CCMX files to install
                             @@ -109,6 +115,7 @@ + If no file is provided, oeminst will look for the install CD.

    @@ -151,6 +158,7 @@ + 2 instrument cannot function without the presence of the instrument vendors PLD firmware pattern for the device. This firmware is not provided with Argyll, since it has not been made @@ -187,6 +195,7 @@ href="http://standards.freedesktop.org/basedir-spec/basedir-spec-0.6.html">XDG + Base Directory specifications are used as a basis for storing the file). Programs that access instruments such as  spotread, XDG - 4 instrument does not have the full range of vendor - instrument calibration options without the presence of the - instrument vendors calibration information for the device. This - calibration information is not provided with Argyll, since it has - not been made available under a compatible license.
    + + 4  or Spyder 5 instrument does not + have the full range of vendor instrument calibration options + without the presence of the instrument vendors calibration + information for the device. This calibration information is not + provided with Argyll, since it has not been made available under a + compatible license.

    - The purchaser of a Spyder 4 instrument should have received a copy - of this calibration information along with their instrument from - the original vendor, and oeminst + The purchaser of a Spyder 4 or 5 instrument should have received a + copy of this calibration information along with their instrument + from the original vendor, and oeminst enables the full range of calibration choice for their instrument, by locating the necessary information in the users copy of the instrument install files.

    @@ -233,8 +244,12 @@ href="http://standards.freedesktop.org/basedir-spec/basedir-spec-0.6.html">XDG drivers have not been installed, or the user does not wish to install them, or no vendors drivers are available for the users platform (i.e. Linux), then oeminst - will also attempt to locate the Spyder 4 installation CDROM, and - make use of the calibration information from there.

    + will also attempt to locate the Spyder 4 or 5 installation CDROM, + and make use of the calibration information from there. If you + have downloaded the OEM software from the vendors website, then + you should run oeminst on the install package you + downloaded.
    +


    The i1d3 @@ -279,6 +294,7 @@ href="http://standards.freedesktop.org/basedir-spec/basedir-spec-0.6.html">XDG + Base Directory specifications are used as a basis for storing the file). Programs that access instruments such as  spotread, XDG colorimeter model that they were created for.

    If you are going to use the same CCSS or CCMX file all the time, - then you may want to set the ARGYLL_COLMTER_CAL_SPEC_SET + then you may want to set the ARGYLL_COLMTER_CAL_SPEC_SET environment variable.


    diff --git a/doc/profcheck.html b/doc/profcheck.html index ef0bc5b..a85e07e 100644 --- a/doc/profcheck.html +++ b/doc/profcheck.html @@ -3,7 +3,7 @@ profcheck + charset=windows-1252"> @@ -11,22 +11,25 @@

    Summary

    Check an ICC profile against .ti3 test chart - data.
    + data, and optionally create a pruned .ti3 file.

    Usage Summary

    profcheck  - [-options] - data.ti3 iccprofile.icm
    -   -     -v - [level]      - Verbosity level (default 1), 2 to print each DE
     -c              Show + + + + + CIE94 delta E values
     -k           @@ -35,157 +38,204 @@ Show  -w              create - VRML visualization (iccprofile.wrl)

     -x              Use - VRML axes
    + + + + + + X3DOM axes
     -m              Make -VRML +X3DOM + + + + + lines a minimum of 0.5
     -e              Color vectors - acording to delta E
    -  -d + + + + + + acording to delta E
    +  -s              + Sort output by delta E
    +  -h              + + + + + Plot a histogram of delta E's
    +  -P + de           + Create a pruned .ti3 with points less or equal to de delta E
    +      -d devval1,deval2,devvalN
                     Specify - a device value to sort - against
    + + + + + + a device value to sort against
     -p              Sort + + + + + device value by PCS/Lab target
    -   - -f +   -f [illum]      Use Fluorescent Whitening Agent compensation [opt. simulated inst. illum.:
                      + + + + + M0, M1, M2, A, C, D50 (def.), D50M2, D65, F5, F8, F10 or file.sp]
     -i illum        Choose illuminant for computation of CIE XYZ from spectral data & FWA:
                     + + + + + A, C, D50 (def.), D50M2, D65, F5, F8, F10 or file.sp
     -o - observ    -    Choose CIE - Observer - for spectral data:
    + observ       Choose CIE Observer for + spectral data:
                       - 1931_2 - (def.), - 1964_10, S&B - 1955_2, shaw, J&V 1978_2
    + + + + + + 1931_2     (def.), 1964_10, S&B 1955_2, shaw, + J&V 1978_2
     -I intent       r = relative colorimetric, a = absolute (default)
      data.ti3     -    - Test - point data file
    +    Test point data file
     iccprofile.icm  Profile to check

    Usage Details and Discussion

    profcheck provides a way of checking how well an ICC profile conforms to the test - sample data that was used to create it (or other test samples - that are from the same device). This is the same sort of check done - within - the profile making tool (colprof), but - having a - separate tool provides some flexibility.  The absolute forward - table in the profile is used to create PCS values from the sample - points, and the profiles PCS value then compared to the PCS values - of - the measured sample points. Note the lower delta E values are not - always a better measure of how good a profile is. The aim of a - profile - is to model the underlying characteristics of a device, not to - slavishly reproduce the sampled data point values. Sampled data - point - values contain device variation and instrument reading inaccuracies, - and a good profiler will try and filter out this noise, resulting in - some deliberate differences between the profile and the sample - points - used to create it.
    + sample data that was used to create it (or other test samples that + are from the same device). This is the same sort of check done + within the profile making tool (colprof), + but having a separate tool provides some flexibility.  The + absolute forward table in the profile is used to create PCS values + from the sample points, and the profiles PCS value then compared to + the PCS values of the measured sample points. Note the lower delta E + values are not always a better measure of how good a profile is. The + aim of a profile is to model the underlying characteristics of a + device, not to slavishly reproduce the sampled data point values. + Sampled data point values contain device variation and instrument + reading inaccuracies, and a good profiler will try and filter out + this noise, resulting in some deliberate differences between the + profile and the sample points used to create it.

    The -v flag prints out extra information during the - checking. A - value greater than 1 will print the color values of each test point.
    + checking. A value greater than 1 will print the color values of each + test point.

    The -c option causes the differences between the test values - and - the profile prediction of the color for each device value to be - displayed - in CIE94 delta E, rather than plain L*a*b* delta E. CIE94 delta E - has a - closer - correspondence with perceived color differences than the default - CIE76 - delta E values.
    + and the profile prediction of the color for each device value to be + displayed in CIE94 delta E, rather than plain L*a*b* delta E. CIE94 + delta E has a closer correspondence with perceived color differences + than the default CIE76 delta E values.

    The -k option causes the differences between the test values - and - the profile prediction of the color for each device value to be - displayed - in CIEDE2000 delta E, rather than plain L*a*b* delta E. CIEDE2000 - delta - E has a - closer - correspondence with perceived color differences than either CIE76 or - CIE94 delta E values.
    -
    - The -w creates a VRML - 3D - visualization - of the differences between the test points and the profiles - prediction - of - the resulting colors.
    -
    - The -x flag adds Lab axes to the VRML output.
    + and the profile prediction of the color for each device value to be + displayed in CIEDE2000 delta E, rather than plain L*a*b* delta E. + CIEDE2000 delta E has a closer correspondence with perceived color + differences than either CIE76 or CIE94 delta E values.
    +
    + The -w creates a X3DOM + 3D visualization of the delta E's between the test points and the + profiles prediction of the resulting colors.
    +
    + The -x flag adds Lab axes to the X3DOM output.

    The -m flag makes each error line a minimum of 0.5 delta E long, so that all the points are visible. This makes it easier to - view - the distribution of test points in the reference set.
    + view the distribution of test points in the reference set.

    The -e flag causes the - error - vectors in the VRML output to be color coded according to their - lengths, from longest to shortest: yellow, red, magenta, blue, cyan - and - green.
    + error vectors in the X3DOM output to be color coded according to + their lengths, from longest to shortest: yellow, red, magenta, blue, + cyan and green.
    +
    + The -s flag will cause the -v2 patch by patch delta E output + to be sort from largest to smallest. This is useful in identifying + badly read patches.
    +
    + The -h flag will display a histogram plot of the fit delta + E's. The X scale is delta E, the Y scale is %
    +
    + The -P N.NN option will create a pruned .ti3 file called + data_pN.NN that contains just the measurement points that have a fit + delta E of less than or equal to the given delta E threshold. This + can be useful if you know that there are faulty or poor accuracy + readings in the data set. Use profcheck -h to examine the fit delta + E histogram to choose a threshold that cuts off the tail, and then + profcheck -P to create the pruned data set. You can check that this + is appropriate if a profcheck -h on the resulting profile no longer + has a long tail. Note that using this procedure will be of + no benefit if the tail is due to an inherently poor fit of the + profile to the data rather than reading innacuracy, even if it makes + the fit appear to be better.
    +
    + NOTE that the pruning does not take any special care as to + what test points are pruned - it may prune important points such as + white and black points!

    The -d parameters allow the specification of a particular - device value, - and the test point by test point output will be sorted by distance - from - the - given device value. This can be useful in determining how well - "supported" - the profile is in a particular area of the colorspace.
    + device value, and the test point by test point output will be sorted + by distance from the given device value. This can be useful in + determining how well "supported" the profile is in a particular area + of the colorspace.

    If the -p flag is used in combination with the -d - parameters, - then the test point by test point output will be sorted by distance - in - PCS - (Lab) space rather than distance in device space.
    + parameters, then the test point by test point output will be sorted + by distance in PCS (Lab) space rather than distance in device space.

    The -f flag enables Fluorescent Whitening Agent (FWA) compensation. This only works if spectral data is available and, the @@ -197,31 +247,27 @@ Sort illumination spectrum to be used as the similated instrument illuminant, overriding the default D50 or CIE computation illuminant used for FWA (see -i below). See colprof -f for - a fuller explanation. The same value should be used as was used - during the creation of the + href="colprof.html#f">colprof -f for a fuller explanation. The + same value should be used as was used during the creation of the profile.

    The -i flag allows specifying a standard or custom - illumination - spectrum, applied to the spectral test point values to compute CIE - tristimulus values. A, D50, D50M2, D65, F5, - F8, F10 are a selection of standard illuminant - spectrums, with D50 being the default. If a filename is - specified instead, it will be assumed to be an Argyll specific .sp - spectrum file. If FWA compensation is used during measurement, this + illumination spectrum, applied to the spectral test point values to + compute CIE tristimulus values. A, D50, D50M2, + D65, F5, F8, F10 are a selection of + standard illuminant spectrums, with D50 being the default. + If a filename is specified instead, it will be assumed to be an + Argyll specific .sp spectrum + file. If FWA compensation is used during measurement, this illuminant will be used by default as the simulated instrument illuminant. The same value should be used as was used during the - creation of the - profile.
    + creation of the profile.

    The -o flag allows specifying a tristimulus observer, and is used to compute PCS (Profile Connection Space) tristimulus values. The following choices are available:
      1931_2 selects the standard CIE 1931 2 degree - observer. - The default.
    + observer. The default.
      1964_10 selects the standard CIE 1964 10 degree observer.
      1955_2 selects the Stiles and Birch 1955 2 degree @@ -232,16 +278,15 @@ Sort observer

    The same parameter value should be used as was used during the - creation - of the profile.
    + creation of the profile.

    The -I parameter allows changing the intent used in looking up the ICC profile colors to relative colorimetric. This would not be used if you are - checking a profile against the .ti3 file that was used to create it, - since, since profiles are always made - from absolute colorimetric measurement values.
    + underline;">not be used if you are checking a profile + against the .ti3 file that was used to create it, since, since + profiles are always made from absolute colorimetric measurement + values.



    diff --git a/doc/scanin.html b/doc/scanin.html index ac6ccc8..96d3cc2 100644 --- a/doc/scanin.html +++ b/doc/scanin.html @@ -3,7 +3,7 @@ scanin + charset=windows-1252"> @@ -59,6 +59,7 @@ style="font-family: monospace;">                   Generate + a chart reference (.cht) file
                        Output + patch values in .val file
                            Use + image to measure color to convert printer pbase .ti2 to .ti3
    @@ -81,22 +84,26 @@ Use style="font-family: monospace;">                  Same + as -c, but accumulates more values to pbase .ti3
                          from + subsequent pages
         -r                   Replace + device values in pbase .ti3
                          Default + is to create a scanner .ti3 file
     -F @@ -105,10 +112,12 @@ Default                       Don't + auto recognize, locate using four fiducual marks
         -p                   Compensate + for perspective distortion
                        Recognize + chart in normal orientation only
                          Default + is to recognize all possible chart angles
         -m                   Return + true mean (default is robust mean)
     -G gamma             - Approximate - gamma encoding of image
    + Approximate gamma encoding of image
     -v [n]               Verbosity + level 0-9
     -d                 diag + - B&W of input image
                          diag + - Horizontal edge detection
                              diag + - Vertical edge detection
                              diag + - Groups detected
             l                 diag + - Lines detected
         L                 diag + - All lines detected
         + I                 diag + - lines used to improve fit
         + c                 diag + - lines perspective corrected
                     diag + - lines rotated
         s                 diag + - sample boxes rotated
         o                 diag + - sample box outlines
         n                 diag + - sample box names
         a                 diag + - sample box areas
         p                 diag + - pixel areas sampled
      -O outputfile       Override the @@ -250,13 +278,15 @@ diag resolutions, and will cope with some degree of noise in the scan (due to screening artefacts on the original, or film grain), but it isn't really designed to accept very high resolution input. For - anything over 600DPI, you should consider down sampling the scan - using a filtering downsample, before submitting the file to scanin. - Similarly, any file with a large level of noise (due to screening or - scanner artefacts) should consider down sampling the image or - filtering it with some average preserving filter before submitting - it to scanin. Examining the diagnostic output (ie. -dig and -dil) - may help in determining whether noise is an issue.
    + anything over 1200 pixels on a side, you should consider down + sampling the scan using a filtering down-sample, before submitting + the file to scanin. Similarly, any file with a large level of noise + (due to screening or scanner artefacts, or a noisy surrounding + texture) should consider cropping out the noisy surrounding, or down + sampling the image or filtering it with some average preserving + filter before submitting it to scanin. Examining the diagnostic + output (ie. -dig and -dil) may help in determining whether noise is + an issue.

    There are 5 basic modes that scanin operates in.
      @@ -309,12 +339,14 @@ diag create the input device profile. The file arguments in -c mode are: The TIFF file that is to be processed containing the image of a print test chart, the + image recognition template file for the test chart generated by the printtarg tool, the input device ICC or MPP profile, the base name for the .ti2 file containing the test chart printer device values and their patch identifiers and the base name for the resulting .ti3 file, and + finally an optional name for the image recognition diagnostic output. The resulting .ti3 file will have the same base name as the input TIFF file. If there is more than one page in the test diff --git a/doc/spec2cie.html b/doc/spec2cie.html index c928f9a..d25b0a0 100644 --- a/doc/spec2cie.html +++ b/doc/spec2cie.html @@ -3,38 +3,43 @@ fakeread + charset=windows-1252">

      spectro/spec2cie

      Summary

      - Convert spectral .ti3 - readings into CIE XYZ or L*a*b* readings. FWA compensation may be - applied.
      + Convert reflective spectral .ti3 + readings into CIE XYZ and D50 L*a*b* readings. Apply FWA, plot + spectrums.

      Usage

      spec2cie [options] input.ti3 + + output.ti3
             -v            Verbose mode
      -  -I illum   -    Override - actual instrument illuminant - in .ti3 file:
      +  -I illum   + + +    Override actual instrument illuminant in .ti3 + file:
                 -   -    A, C, D50, D50M2, D65, F5, - F8, F10 or file.sp
      +      A, C, D50, D50M2, D65, F5, F8, F10 or + file.sp
                      - (only - used in conjunction with -f)
      + + + (only used in conjunction with -f)
       -f [illum] -    Use Fluorescent Whitening Agent compensation - [simulated inst. illum.:
      + href="colprof.html#f">-f [illum]    Use + Fluorescent Whitening Agent compensation [simulated inst. + illum.:
                      + + M0, M1, M2, A, C, D50 (def.), D50M2, D65, F5, F8, F10 or file.sp]
                   -   -     - A, C, D50 (def.), D50M2, D65, F5, +       A, C, D50 (def.), D50M2, D65, F5, F8, F10 or file.sp
      -        -o - observ  -    Choose CIE Observer for spectral - data:
      +        -o observ  + + +    Choose CIE Observer for spectral data:
                       + + 1931_2       (def.), - 1964_10, S&B - 1955_2, shaw, J&V 1978_2
      + 1964_10, S&B 1955_2, shaw, J&V 1978_2
       -n             Don't output + + spectral values
       -p             - Plot - each values spectrum
      -       -  input.ti3      + Plot each values spectrum
      +        input.ti3      Measurement + + file
       output.ti3     - Converted - measurement file
      + + + Converted measurement file

      Comments

      - This program takes the spectral data in a .ti3 file, converts them - to - XYZ and Lab and fills the XYZ_[XYZ] and LAB_[LAB] columns in the - output - .ti3 file with the computed XYZ and Lab values. If the columns + This program takes the (usually reflective) spectral data in a .ti3 + file, converts them to XYZ and D50 L*a*b* and fills the XYZ_[XYZ] + and LAB_[LAB] columns in the output .ti3 file. If the columns XYZ_[XYZ] and/or LAB_[LAB] are missing in the input file, they are added to the output file.

      + If FWA correction is applied, then the spectra saved will be FWA + corrected, as well as the XYZ and D50 L*a*b* values.
      +
      All other columns are copied from the input to the output .ti3 file.

      + Setting an actual instrument/simulated instrument/CIE illuminant + only has an effect for reflective/transmissive spectra. Emissive + spectra don't have an illuminant, and will simply be converted to + XYZ using the given observer.
      +

      The -I parameter allows specifying a an - illumination - spectrum for the actual instrument illuminant, overriding that - computed from - the type of instrument (recorded in the .ti3 file). This is rarely - used. This parameter is can - only be used in combination with the -f - flag. If a - filename is specified instead, it will be assumed to be an Argyll - specific .sp - custom spectrum file. - Illuminant details are:
      + illumination spectrum for the actual instrument illuminant, + overriding that computed from the type of instrument (recorded in + the .ti3 file). This is rarely used. This parameter is can only be + used in combination with the -f + flag. If a filename is specified instead, it will be assumed to be + an Argyll specific .sp custom + spectrum file. Illuminant details are:

              A   CIE - tungsten - filament lamp 2848K
      + tungsten filament lamp 2848K
              D50 CIE daylight 5000K
              D65 CIE daylight 6500K
              F5  CIE Fluorescent @@ -107,8 +114,7 @@ Measurement         F8  CIE Fluorescent 5000K, CRI 95
              F10 CIE Fluorescent - 5000K, - CRI 81
      + 5000K, CRI 81


      The -f flag enables Fluorescent Whitening @@ -121,6 +127,8 @@ Measurement standard or custom illumination spectrum to be used as the similated instrument illuminant, overriding the default D50 or CIE computation illuminant used for FWA (see -i below). See + + colprof -f for a fuller explanation.

      The -i parameter allows specifying a @@ -129,8 +137,7 @@ Measurement D50, D65, F5, F8, F10 are a selection of standard illuminant spectrums, with D50 being the default. If a filename is specified instead, it will be assumed - to be an Argyll specific .sp + to be an Argyll specific .sp custom spectrum file. This only works if spectral data is available. Illuminant details are:

      @@ -181,22 +188,18 @@ Measurement Note that if an observer other than 1931 2 degree is chosen, the resulting ICC profile will not be standard, and cannot be freely interchanged with other profiles that that us the standard 1931 2 - degree - observer. Profiles should only be linked with other profiles that - have - the same illuminant and observer.
      -
      + degree observer. Profiles should only be linked with other profiles + that have the same illuminant and observer.


      The -n flag - disables the output of the spectral values. If just the XYZ and - L*a*b* - values are needed, this makes for a smaller, easier to read file.
      + disables the output of the spectral values. If just the XYZ and D50 + L*a*b* values are needed, this makes for a smaller, easier to read + file.

      The -p flag causes each spectrum to be plotted. If FWA compensation is used, - then - the before/after compensation spectrums will be shown.
      + then the before/after compensation spectruma will be shown.



      diff --git a/doc/spotread.html b/doc/spotread.html index aaac0a1..f3964f5 100644 --- a/doc/spotread.html +++ b/doc/spotread.html @@ -3,14 +3,18 @@ spotread + charset=windows-1252">

      spectro/spotread

      Summary

      Use an instrument to read a single color value. This can be a useful - diagnostic aid. + diagnostic aid.
      +
      + [ A commercial tool that does much of what spotread does and more, + is the ArgyllPRO ColorMeter. + ]

      Usage Summary

      spotread [-options] [logfile]
      @@ -29,6 +33,14 @@ + + + + + + + + @@ -53,6 +65,14 @@ + + + + + + + + @@ -82,6 +102,14 @@ + + + + + + + + @@ -105,6 +133,14 @@ + + + + + + + + @@ -128,6 +164,14 @@ + + + + + + + + @@ -150,6 +194,14 @@ + + + + + + + + @@ -160,6 +212,14 @@ style=" font-family: monospace;" href="#ew">-ew                   + + + + + + + + Use display white point relative chromatically adjusted mode
       -p
      -i illum              Choose illuminant for computation of - CIE XYZ from spectral data & FWA:

                    @@ -343,6 +459,14 @@ D50 + + + + + + + + @@ -369,6 +493,14 @@ D50 + + + + + + + + @@ -394,6 +526,14 @@ D50 + + + + + + + + @@ -414,6 +554,14 @@ D50 + + + + + + + + @@ -434,6 +582,14 @@ D50 + + + + + + + + @@ -454,6 +610,14 @@ D50 + + + + + + + + @@ -474,6 +638,14 @@ D50 + + + + + + + + @@ -497,6 +669,14 @@ D50 + + + + + + + + @@ -518,6 +698,14 @@ D50 + + + + + + + + @@ -539,6 +727,14 @@ D50 + + + + + + + + @@ -560,6 +756,14 @@ D50 + + + + + + + + @@ -580,12 +784,49 @@ D50 + + + + + + + + Disable initial calibration of instrument if possible
      +  -O +                    + + + + + + + + + + + + + + + + + + + + + + + + + + Do one cal. or measure and exit
       -H @@ -606,6 +847,14 @@ D50 + + + + + + + + @@ -631,6 +880,14 @@ Samples + + + + + + + + @@ -650,10 +907,26 @@ Samples + + + + + + + +      Override refresh, non-refresh display mode
       -Y R:rate             + + + + + + + + Override measured refresh rate with rate Hz
       -Y A
      + The Graph plots light wavelength on the X axis, and either absolute + or relative level on the Y axis.
      +
      +
    Instrument0.05
    Klein K10-A
    +     		0.05
    +
    DTP92
    +
    + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
      Measurement Mode  
    +     		Y Units
    +
    Emission
    +     		mW/(m2.sr.nm)
    Ambient
    +     		mW/(m2.nm)
    +
    Emission Flash
    +     		  mW/(m2.sr.nm.s) + + + + + +   
    +
    Ambient Flash
    +     		mW/(m2.nm.s)
    +
    Reflective
    +     		%/nm
    +
    Transmissive
    +     		%/nm
    +
    +
    The instrument is assumed to communicate through a USB or serial communication port, and the port can be selected with the -c option, if the instrument is not connected to the @@ -833,29 +1180,33 @@ none, and how this works, see Operation of particular instruments. 3) Any installed CCSS files (if applicable), or CCMX files. These files are typically created - using ccxxmake, - and installed using oeminst. The - default and Base Calibration types will be indicated in the usage.
    + using ccxxmake, and installed using oeminst. The default and Base Calibration + types will be indicated in the usage.

    The -I parameter allows specifying a - standard or custom illumination spectrum to be used as the similated - instrument illuminant when FWA compensation is used during - measurement, overriding the default D50 or CIE computation - illuminant used for FWA (see -i below). See colprof -f for a fuller explanation.
    + standard or custom illumination spectrum to be used as the simulated + reflectance instrument illuminant when FWA compensation is used + during measurement, overriding the default D50 or + CIE computation illuminant used for FWA (see -i below). If + + using M0, M1 or M2, then the -i + option is not normally used. See colprof + + -f for a fuller explanation.

    The -i parameter allows specifying a - standard or custom illumination spectrum applied to reflective or transmissive - spectral data to compute CIE tristimulus values. A, D50, - D50M2, D65, F5, F8, F10 are a - selection of standard illuminant spectrums, with D50 being - the default. If a filename is specified instead, it will be assumed - to be an Argyll specific .sp - spectrum file. If FWA compensation is used during measurement, this - illuminant will be used by default as the simulated instrument - illuminant.
    + spectral data to compute CIE tristimulus values. A, + D50, D50M2, D65, F5, F8, F10 + are a selection of standard illuminant spectrums, with D50 + being the default. If using -I M0, M1 or M2, + then this -i option is not normally used. If a + filename is specified instead, it will be assumed to be an Argyll + specific .sp spectrum file. If + FWA compensation is used during measurement, this illuminant will be + used by default as the simulated instrument illuminant.

    The -Q flag allows specifying a tristimulus observer, and is used to compute PCS (Profile Connection Space) @@ -930,6 +1281,11 @@ none, computer. It is advisable to only use this option on the second and subsequent measurements in a single session.

    + -O Do a calibration or a single measurement + and exit. To take a measurement with an instrument that always does + a calibration first, calibrate it and then use -O with -N. The -O + option is intended to simplify scripted use of spotread.
    +
    The -H option turns on high resolution spectral mode, if the instrument supports it. See Operation of particular @@ -966,6 +1322,14 @@ a + + + + + + + + @@ -982,6 +1346,14 @@ a + + + + + + + + -Y n options overrides the refresh display mode set by the -y display type selection, with -Y r forcing refresh display mode, @@ -997,12 +1369,12 @@ a
    The -Y A option uses a non-adaptive integration time emission measurement - mode, if the instrument supports it, such as the Eye-One Pro or - ColorMunki. By default an adaptive integration time measurement mode - will be used for emission measurements, but some instruments support - a fixed integration time mode that can be used with display devices. - This may give increased consistency and faster measurement times, - but may also give less accurate low level readings.
    + mode, if the instrument supports it, such as the Eye-One Pro, + ColorMunki, i1d3 or K10. By default an adaptive integration time + measurement mode will be used for emission measurements, but some + instruments support a fixed integration time mode that can be used + with display devices. This may give faster measurement times, but + may also give less accurate low level readings.

    The -W n|h|x parameter overrides the default serial communications flow control @@ -1041,9 +1413,13 @@ a the range 0 .. 100 for reflective or transmissive readings, and absolute cd/m^2 for display, emissive and ambient readings.

    - The L*a*b* values are computed relative to a D50 100 scale white - point. (Note that using display white relative mode makes the L*a*b - relative to the display white point.)
    + By default the L*a*b* values are computed relative to a fixed D50 + 100 scale white point, so values for emissive sources are not + particularly useful.
    + Using the display white relative mode uses a Bradford chromatic + transform to transform from the measured white to a D50 white (the + same as ArgyllCMS ICC profile deals a display white), and then + computes the D50 L*a*b from that.
     
    If Fluorescent Whiter Additive (FWA) compensated readings are to be made, then this needs to be enabled with the correct command line diff --git a/doc/targen.html b/doc/targen.html index ee12f27..3aa1bb4 100644 --- a/doc/targen.html +++ b/doc/targen.html @@ -41,6 +41,8 @@ + + 0: Print grey
                @@ -56,6 +58,8 @@ + +          1: Video grey
             @@ -72,6 +76,8 @@ + +             2: Print RGB
          @@ -95,6 +101,8 @@ + + 5: CMY
               @@ -115,6 +123,8 @@ + +              7: CMYK + Light CMK
              @@ -139,6 +149,8 @@ Red + + + Blue
                @@ -168,6 +180,8 @@ Red + +             12: CMYK + Light CM + Medium CM
    @@ -190,6 +204,8 @@ Red + +              0: Additive
          @@ -218,6 +234,8 @@ Red + +           4: Black
              @@ -234,6 +252,8 @@ Red + +            5: Orange
             @@ -251,6 +271,8 @@ Red + + 6: Red
                         @@ -267,6 +289,8 @@ Red + + 7: Green
                         @@ -283,6 +307,8 @@ Red + + 8: Blue
                         @@ -299,6 +325,8 @@ Red + + 9: White
                         @@ -315,6 +343,8 @@ Red + + 10: Light Cyan
                         @@ -331,6 +361,8 @@ Red + + 11: Light Magenta
                         @@ -347,6 +379,8 @@ Red + + 12: Light Yellow
            @@ -362,6 +396,8 @@ Red + +              13: Light Black
    @@ -380,6 +416,8 @@ Red + + 14: Medium Cyan
                         @@ -396,6 +434,8 @@ Red + + 15: Medium Magenta
                         @@ -412,6 +452,8 @@ Red + + 16: Medium Yellow
             @@ -427,6 +469,8 @@ Red + +             17: Medium Black
               @@ -443,6 +487,8 @@ Red + +           18: Light Light Black
     -G              @@ -459,6 +505,8 @@ Red + + Generate good optimzed points rather than Fast
             @@ -498,6 +548,8 @@ Red + + Single channel steps (default 0)
     
         -m steps
      -f @@ -573,6 +631,8 @@ steps + + patches      @@ -587,6 +647,8 @@ steps + + Add iterative & adaptive full spread patches to total (default 836)
                         @@ -603,6 +665,8 @@ steps + + Default is Optimised Farthest Point Sampling (OFPS)
     
          -r
      -R
      -q       -Q
     
     
     
         -l ilimit      -p power
     
    -       +  -O              + Don't re-order display RGB patches for minimum delay
    +  -w              @@ -899,12 +987,14 @@ device - Dump diagnostic outfile.wrl file (Lab locations)
    + + + Dump diagnostic outfile.x3d.html file (Lab locations)
     -W              - Dump diagnostic outfile.wrl file (Device locations)

     

    Usage Details and Discussion

    @@ -997,6 +1089,8 @@ device + + 5 will generate steps at 0.0 0.25 0.5 0.75 and 1.0, while the option -s 5 -p 2.0 will generate steps at 0.0 0.0625 0.25 0.5625 and 1.0. By default, no per @@ -1057,6 +1151,8 @@ device + + -b flags, is not to duplicate test values already created by a previous type.

    @@ -1236,6 +1332,8 @@ device + + steps     patches.

    The -F flag and parameters is used to @@ -1253,8 +1351,16 @@ device methods are used, then the target number of points will be achieved. For this reason, the -f N -q method is probably the easiest to use.

    + The -O flag disables the normal patch + re-ordering used for display RGB sets. Displays are assumed to have + a "settling time", and the delay needed for this settling time can + be minimzed by sort the patches so that they are in an order which + minimizes the change in levels between patches. -O disables + this re-ordering, leaving the patches in whatever order they were + generated.
    +
    The -w flag causes a diagnostic VRML .wrl file to be created, in + href="File_Formats.html#X3DOM">X3DOM .x3d.html file to be created, in which the test points are plotted as small spheres in L*a*b* colorspace. Note that for a CMYK device, the point spacing may seem strange, since the extra K dimension is compressed into the 3 @@ -1274,6 +1380,11 @@ device number of rows, and then adjusting the total number of patches to fill the last row or paper size, in a trial and error fashion.

    + Note that some people create charts with larger numbers of patches + for the ColorMunki by altering an Eye-One Pro chart, and making + scanning jigs to guide the instrument more accurately. This may + reduce patch reading accuracy unless suitable care is taken.
    +
         Size (mm/Standard Name),   No. Patches

    diff --git a/doc/tiffgamut.html b/doc/tiffgamut.html index 5b67603..6aea52d 100644 --- a/doc/tiffgamut.html +++ b/doc/tiffgamut.html @@ -3,19 +3,19 @@ tiffgamut + charset=windows-1252">

    xicc/tiffgamut

    Summary

    - Create a gamut file or VRML file of the color gamut of the contents + Create a gamut file or X3DOM file of the color gamut of the contents of a set of TIFF or JPEG image.

    tiffgamut allows creation of gamut files from the pixel values in a set of TIFF and/or JPEG raster images, as defined by an ICC profile, in L*a*b* or CIECAM02 - Jab colorspace, and can also represent the gamut as a VRML file. + Jab colorspace, and can also represent the gamut as a X3DOM file. This can be used for visualizing and comparing the gamut of an image to the colorspace it is in, or a colorspace it might get transformed into, and can also be used to create an image source gamut for use @@ -29,7 +29,12 @@ intent for appearance space gamut mappings, and the same input viewing conditions to be used in collink or colprof using the -c - flag, i.e. "tiffgamut -pj -cmt sRGB.icm image.tif"
    + flag, i.e. "tiffgamut -pj -cmt sRGB.icm image.tif" See Image dependent gamut mapping using + device links for an example workflow.
    +
    + See 3D Viewing + Format for switching to VRML or X3D output format.

    Usage Summary

    tiffgamut [-v level] [profile.icm | embedded.tif/jpg] infile1.tif/jpg @@ -37,6 +42,8 @@  -v            + + Verbose
      -d sres       Surface resolution @@ -45,18 +52,24 @@ emit - VRML .wrl file as well as CGATS .gam file

     -n            Don't - add VRML axes or white/black point
    + + + add X3DOM axes or white/black point
     -k            Add + + markers for prim. & sec. "cusp" points
     -f perc       Filter by popularity, perc = percent to use

    @@ -80,6 +95,8 @@ s r + + = reverse (priority: monochrome > matrix > lut)
     -p oride
    @@ -107,11 +126,15 @@ either    + + pe - Print evaluation environment (CIE 116-1995)
               + + pc - Critical print evaluation environment (ISO-3664 P1)
    @@ -122,6 +145,8 @@ either   + +   mb - Monitor in bright work environment
         @@ -146,36 +171,48 @@ either s:surround   + + n = auto, a = average, m = dim, d = dark,
                     + +      c = transparency (default average)
             w:X:Y:Z      + + Adapted white point as XYZ (default media white)
             w:x:y        + + Adapted white point as x, y
             a:adaptation + + Adaptation luminance in cd.m^2 (default 50.0)
             b:background + + Background % of image luminance (default 20)
             l:imagewhite Image white in cd.m^2 if surround = auto (default 250)
             @@ -196,6 +235,8 @@ f:flare      monospace;">          + + g:x:y        Glare color as x, y
     -O outputfile Override the default output filename & @@ -211,11 +252,11 @@ f:flare      and is a good place to start. Small values may take a lot of time to generate, and will produce big files.

    - The -w flag causes a VRML file to be produced, as well as a + The -w flag causes a X3DOM file to be produced, as well as a gamut file.

    The -n flag suppresses the L*a*b* axes being created in the - VRML.
    + X3DOM.

    The -k flag adds markers for each of the primary and secondary "cusp" points (Red, Yellow, diff --git a/doc/txt2ti3.html b/doc/txt2ti3.html index 5d021fc..0fc467d 100644 --- a/doc/txt2ti3.html +++ b/doc/txt2ti3.html @@ -3,17 +3,15 @@ txt2ti3 + charset=windows-1252">

    profile/txt2ti3

    Summary

    - Convert - Gretag/Logo/X-Rite or other CGATS format RGB or CMYK test chart - results - into Argyll .ti3 - CGATS + Convert Gretag/Logo/X-Rite/Barbieri or other CGATS + format RGB or CMYK test chart results into + Argyll .ti3 CGATS format. 

    Usage Summary

    txt2ti3 [-v] [-l limit] @@ -21,91 +19,83 @@ style="font-family: monospace;">
    -2       -      create a dummy .ti2 file as well.
    + italic;">                + create a dummy .ti2 file as well.
    -l limit      - set ink - limit, 0 - - - 400% (default max in file)
    + set ink limit, 0 - 400% (default max in file)
    -d            Set + type of device as Display, not Output
    -i            Set + type of device as Input, not Output
    [devfile]     Input - Device - CMYK - target file (typically file.txt)
    + Device CMYK target file (typically file.txt)
    infile        Input CIE, + Spectral or Device & Spectral file (typically file.txt)
    [specfile]    Input - Spectral - file (typically file.txt)
    outbasefile   Base name for output.ti3 and .ti2 - file     + monospace;"> and .ti2 file

    Usage Details and Discussion

    - txt2ti3 takes the Gretag/Logo/X-Rite/etc. test chart - results, and converts them - into Argyll .ti3 CGATS - files.
    + txt2ti3 takes the Gretag/Logo/X-Rite/Barbieri/etc. test chart + results, and converts them into Argyll .ti3 CGATS files.
    It is quite common to find profile test chart data from various standards bodies and industry organizations in one of these formats, - so it is - useful to be able to convert them for use with Argyll. ICC profiles - created using Gretag Profile Maker also commonly contain the test - chart - results embedded in the profile, inside an ICC tag.
    + so it is useful to be able to convert them for use with Argyll. ICC + profiles created using Gretag Profile Maker also commonly contain + the test chart results embedded in the profile, inside an ICC tag.

    - A variety of different packaging of Gretag/Logo data can be - accepted:
    + A variety of different packaging of Gretag/Logo/X-Rite/Barbieri data + can be accepted:

    1 source files, consisting of a combined device value and CIE and/or spectral values.
    2 source files, consisting of  a file containing the device values, and a file containing the CIE and/or spectral values.
    2 source files, consisting of a file containing the device values - and - the CIE values, and a file containing the spectral values.
    + and the CIE values, and a file containing the spectral values.
    3 source files, consisting of a file containing the device values, a file containing the CIE values, and a file containing the spectral values.

    X-Rite ColorPort seems to produce a single source file containing - combined device value and CIE - and/or spectral values.
    + combined device value and CIE and/or spectral values.

    The Gretag/Logo test chart results format seem to change with each minor release of Profile Maker, so this tool may not work in all cases.

    + Use the Barbieri .CIE file
    +
    The outbasefile is the - base - of the output file(s), to which txt2ti3 will automatically append a - .ti3 and .ti2 extension.
    + base of the output file(s), to which txt2ti3 will automatically + append a .ti3 and .ti2 extension.

    The input files may have data that is scaled to one of three levels: 1.0, 100.0 or 255.0, and txt2ti3 attempts to guess what the - appropriate - range is, in order to scale to Argyll's standard range 0 .. 100.0.
    + appropriate range is, in order to scale to Argyll's standard range 0 + .. 100.0.


    diff --git a/doc/viewgam.html b/doc/viewgam.html index 0bf5c04..9c3e3f0 100644 --- a/doc/viewgam.html +++ b/doc/viewgam.html @@ -1,125 +1,146 @@ - - viewgam - - - - -

    gamut/viewgam

    -

    Summary

    -Convert one or more gamuts into a VRML -3D visualization -file.  This allows visual comparison of several gamut surfaces.
    -Also allows creating the intersection (overlap) between two gamuts. -This is useful in measuring and visualizing the coverage of one gamut -of another.
    -

    Usage
    -

    -viewgam { [-c color] [-t -trans] [-w|s] infile.gam } ... outfile.wrl
    -                -For each input gamut file:
    - -c color        + + viewgam + + + + +

    gamut/viewgam

    +

    Summary

    + Convert one or more gamuts into a X3DOM 3D visualization file. +  This allows visual comparison of several gamut surfaces.
    + Also allows creating the intersection (overlap) between two gamuts. + This is useful in measuring and visualizing the coverage of one + gamut of another.
    +
    + See 3D Viewing Format for switching to + VRML or X3D output format.
    +

    Usage
    +

    + viewgam { [-c color] + [-t trans] [-w|s] infile.gam } ... outfile.x3d.html
    +                 +For + + + each input gamut file:
    +  -c color        Color to -make gamut, -r = red, g = green, b = blue
    -                +make + + + gamut, r = red, g = green, b = blue
    +                    -c = cyan, m = magenta, y = yellow, w = white
    -                   -n = natural color
    - -t trans        +c + + + = cyan, m = magenta, y = yellow, w = white
    +                    +n + + + = natural color
    +  -t trans        Set transparency -from 0.0 (opaque) to 1.0 (invisible)
    - -w              -Show as a wireframe
    - -s              -Show as a solid surface
    -  infile.gam      Name -of infile.gam file
    -
    - -n             -Don't add Lab axes
    - -i             Compute -and print intersecting volume of first 2 gamuts
    - -I isect.gam   Same as -i, but save intersection gamut -to isect.gam
    -     outfile.wrl Name of output -outfile.wrl file     -
    -

    Usage Details and Discussion

    -viewgam creates a VRML file that allows the  viewing and -comparing -of multiple gamut files by representing them as solid surfaces, -wireframes, -etc. It takes as input a list of gamut files, each file preceded by any -options that are to apply to the display of  that particular -gamut. -
    -
    -The options that can be specified for each input gamut are:
    -
    --c color allows the color of the surface or wireframe to -be -specified. Any of a number of predefined colors (red, green, blue, -cyan, -magenta, yellow, white) can be used, as well as allowing the color to -reflect -the natural color of that point in the colorspace.
    -
    --t trans allows the transparency of the surface  to -be -specified. A value of 0.2 might be a good place to start. Using -transparency -generally leads to a slower display than the default opaque surface -treatment, but can make it possible to see within a solid gamut surface.
    -
    --w forces the gamut surface to be rendered as a wireframe.
    -
    --s forces the gamut surface to be rendered as a solid surface.
    -
    -By default, the first gamut is treated as a solid with natural -coloring, -with the second and subsequent gamuts being wireframes with colors of -white, -red, cyan, yellow, green and blue, with decreasing visibility.
    -
    -The -n flag turns off display of the default L*a*b* axes in the -output.
    -
    -The -i flag computes the -intersecting volume of the first two gamuts (in cubic color units, -usually L*a*b*), as well as the volumes of the two gamuts and the -percentage the intersection is of the two gamuts. This is a useful -measure of the coverage one gamut has of another. If -I is used, then as well as printing -the volume, the intersecting gamut will be saved to the isect.gam file.
    -
    -The final argument is the name of the VRML file to save the resulting -composite -3D visualization file to.
    -
    - +from + + + 0.0 (opaque) to 1.0 (invisible)
    +  -w              +Show + + + as a wireframe
    +  -s              +Show + + + as a solid surface
    +  infile.gam      + Name of infile.gam file
    +
    +  -n             +Don't + + + add Lab axes
    +  -i             Compute and + print intersecting volume of first 2 gamuts
    +  -I isect.gam   Same as -i, but save intersection + gamut to isect.gam
    +      outfile        Base + + name of output outfile.x3d.html file
    +

    Usage Details and Discussion

    + viewgam creates a X3DOM file that allows the  viewing + and comparing of multiple gamut files by representing them as solid + surfaces, wireframes, etc. It takes as input a list of gamut files, + each file preceded by any options that are to apply to the display + of  that particular gamut.
    +
    + The options that can be specified for each input gamut are:
    +
    + -c color allows the color of the surface or wireframe + to be specified. Any of a number of predefined colors (red, green, + blue, cyan, magenta, yellow, white) can be used, as well as allowing + the color to reflect the natural color of that point in the + colorspace.
    +
    + -t trans allows the transparency of the surface  + to be specified. A value of 0.2 might be a good place to start. + Using transparency generally leads to a slower display than the + default opaque surface treatment, but can make it possible to see + within a solid gamut surface.
    +
    + -w forces the gamut surface to be rendered as a wireframe.
    +
    + -s forces the gamut surface to be rendered as a solid + surface.
    +
    + By default, the first gamut is treated as a solid with natural + coloring, with the second and subsequent gamuts being wireframes + with colors of white, red, cyan, yellow, green and blue, with + decreasing visibility.
    +
    + The -n flag turns off display of the default L*a*b* axes in + the output.
    +
    + The -i flag computes the + intersecting volume of the first two gamuts (in cubic color units, + usually L*a*b*), as well as the volumes of the two gamuts and the + percentage the intersection is of the two gamuts. This is a useful + measure of the coverage one gamut has of another. If -I is used, then as well as + printing the volume, the intersecting gamut will be saved to the isect.gam file.
    +
    + The final argument is the base name of the X3DOM file to save the + resulting composite 3D visualization file to. If the name given + doesn't have an extension, one will be automatically added.
    +
    + diff --git a/gamut/Jamfile b/gamut/Jamfile index a7273f3..e97d0df 100644 --- a/gamut/Jamfile +++ b/gamut/Jamfile @@ -30,8 +30,8 @@ Library libgamut : gamut.c ; # Gamut mapping library Library libgammap : gammap.c nearsmth.c ; -LINKLIBS = libgammap libgamut ../rspl/librspl ../icc/libicc ../cgats/libcgats ../numlib/libnum - ../plot/libvrml ; +LINKLIBS = libgammap libgamut ../rspl/librspl ../icc/libicc ../cgats/libcgats + ../plot/libplot ../numlib/libnum ../numlib/libui ../plot/libvrml ; # Utilities Main viewgam : viewgam.c ; @@ -56,7 +56,7 @@ Main GenVisGam : GenVisGam.c ; #Main tttt : tttt.c ; LINKLIBS = libgammap libgamut ../icc/libicc ../cgats/libcgats ../xicc/libxicc - ../rspl/librspl ../numlib/libnum ../plot/libplot ../plot/libvrml ; + ../rspl/librspl ../plot/libplot ../plot/libvrml ../numlib/libnum ../numlib/libui ; # Mapping test routine Main maptest : maptest.c ; diff --git a/gamut/gammap.c b/gamut/gammap.c index d463755..638a2cd 100644 --- a/gamut/gammap.c +++ b/gamut/gammap.c @@ -45,20 +45,23 @@ #define VERBOSE /* [Def] Print out extra interesting information when verbose is set */ #undef PLOT_DIAG_WRL /* [Und] Always plot "gammap.wrl" */ - /* What do display when user requests disgnostic .wrl */ + /* What do display when user requests disgnostic VRML/X3D */ #define PLOT_SRC_GMT /* [Def] Plot the source surface to "gammap.wrl" as well */ #define PLOT_DST_GMT /* [Def] Plot the dest surface to "gammap.wrl" as well */ #undef PLOT_SRC_CUSPS /* [Und] Plot the source surface cusps to "gammap.wrl" as well */ #undef PLOT_DST_CUSPS /* [Und] Plot the dest surface cusps to "gammap.wrl" as well */ #undef PLOT_TRANSSRC_CUSPS /* [Und] Plot the gamut mapped source surface cusps to "gammap.wrl" */ -#undef PLOT_AXES /* [Und] Plot the axes to "gammap.wrl" as well */ +#define PLOT_AXES /* [Und] Plot the axes to "gammap.wrl" as well */ #undef SHOW_VECTOR_INDEXES /* [Und] Show the mapping vector index numbers */ -#define SHOW_MAP_VECTORS /* [Def] Show the mapping vectors */ -#undef SHOW_SUB_SURF /* [Und] Show the sub-surface mapping vector */ +#define SHOW_MAP_VECTORS /* [Def] Show the mapping vectors - yellow to red, green to red */ + /* if no clear direction. */ +#undef SHOW_SUB_SURF /* [Und] Show the sub-surface mapping vector - grey to purple. */ +#undef SHOW_SUB_PNTS /* [Und] Show the sub-surface sv2 (red), div2 (green), sd3 (yellow) pnts */ #undef SHOW_CUSPMAP /* [Und] Show the cusp mapped vectors rather than final vectors */ -#undef SHOW_ACTUAL_VECTORS /* [Und?] Show how the source vectors actually map thought xform */ +#undef SHOW_ACTUAL_VECTORS /* [Und] Show how the source vectors actually map thought xform */ #undef SHOW_ACTUAL_VEC_DIFF /* [Und] Show how the difference between guide and actual vectors */ + /* Other diagnostics */ #undef PLOT_LMAP /* [Und] Plot L map */ #undef PLOT_GAMUTS /* [Und] Save (part mapped) input and output gamuts as */ /* src.wrl, img.wrl, dst.wrl, gmsrc.wrl */ @@ -75,7 +78,11 @@ #undef PLOT_DIGAM /* [Und] Rather than DST_GMT - don't free it (#def in nearsmth.c too) */ -#define XRES 100 /* Res of plots */ +#define XRES 100 /* [100] Res of plots */ + +/* The locus.ts file can contain source locus(es) that will be plotted */ +/* as cones in red, with the destination plotted in white. They can */ +/* be created from .tif files using xicc/tiffgmts utility. */ /* Optional marker points for gamut mapping diagnosotic */ struct { @@ -85,6 +92,7 @@ struct { double col[3]; /* RGB color */ } markers[] = { { 0, }, /* End marker */ + { 1, { 37.18, 17.78, 20.28 }, { 0.545, 0.357, 0.256 } }, /* Dark Baby skin */ { 1, { 12.062, -0.87946, 0.97008 }, { 1.0, 0.3, 0.3 } }, /* Black point */ { 1, { 67.575411, -37.555250, -36.612862 }, { 1.0, 0.3, 0.3 } }, /* bad source in red (Red) */ { 1, { 61.003078, -44.466554, 1.922585 }, { 0.0, 1.0, 0.3 } }, /* good source in green */ @@ -169,7 +177,7 @@ static void inv_grey_func(void *pp, double *out, double *in); static void adjust_wb_func(void *pp, double *out, double *in); static void adjust_sat_func(void *pp, double *out, double *in); -#define XVRA 4.0 /* Extra mapping vertex ratio over no. tri verts from gamut */ +#define XVRA 3.0 /* [3.0] Extra mapping vertex ratio over no. tri verts from gamut */ /* The smoothed near weighting control values. */ /* These weightings setup the detailed behaviour of the */ @@ -186,16 +194,17 @@ gammapweights pweights[] = { 0.0, /* Cusp chroma alignment weighting 0 = none, 1 = full */ 0.3 /* Cusp hue alignment weighting 0 = none, 1 = full */ }, + 2.0, /* Alignment twist power, 0 = linear, 1 = curve, 2+ late curve */ 1.00 /* Chroma expansion 1 = none */ }, - { /* Radial weighting */ + { /* Radial weighting (currently broken - need to fix) */ 0.0, /* Radial error overall weight, 0 + */ 0.5, /* Radial hue dominance vs l+c, 0 - 1 */ 0.5 /* Radial l dominance vs, c, 0 - 1 */ }, { /* Weighting of absolute error of destination from source */ 1.0, /* Absolute error overall weight */ - 0.6, /* Hue dominance vs l+c, 0 - 1 */ + 0.8, /* Hue dominance vs l+c, 0 - 1 */ 0.8, /* White l dominance vs, c, 0 - 1 */ 0.5, /* Grey l dominance vs, c, 0 - 1 */ @@ -221,16 +230,16 @@ gammapweights pweights[] = { 0.0 /* Fine tuning expansion weight, 0 - 1 */ } }, -#ifdef NEVER { - gmm_l_d_blue, /* Increase maintaining hue importance for blue */ + gmm_light_yellow, /* Treat yellow differently, to get purer result. */ { { - -1.0, /* Cusp luminance alignment weighting 0 = none, 1 = full */ - -1.0, /* Cusp chroma alignment weighting 0 = none, 1 = full */ - 0.0 /* Cusp hue alignment weighting 0 = none, 1 = full */ + 0.9, /* Cusp luminance alignment weighting 0 = none, 1 = full */ + 0.8, /* Cusp chroma alignment weighting 0 = none, 1 = full */ + 0.7 /* Cusp hue alignment weighting 0 = none, 1 = full */ }, - -1.0 /* Chroma expansion 1 = none */ + 4.0, /* Alignment twist power, 0 = linear, 1 = curve, 2+ late curve */ + 1.20 /* Chroma expansion 1 = none */ }, { /* Radial weighting */ -1.0, /* Radial error overall weight, 0 + */ @@ -239,7 +248,7 @@ gammapweights pweights[] = { }, { /* Weighting of absolute error of destination from source */ -1.0, /* Absolute error overall weight */ - 0.8, /* Hue dominance vs l+c, 0 - 1 */ + -1.0, /* Hue dominance vs l+c, 0 - 1 */ -1.0, /* White l dominance vs, c, 0 - 1 */ -1.0, /* Grey l dominance vs, c, 0 - 1 */ @@ -252,7 +261,7 @@ gammapweights pweights[] = { -1.0 /* L error xover threshold in DE */ }, { /* Relative error preservation using smoothing */ - -1.0, 25.0 /* Relative Smoothing radius L* H* */ + 20.0, 10.0 /* Relative Smoothing radius L* H* */ }, { /* Weighting of excessive compression error, which is */ /* the src->dst vector length over the available dst depth. */ @@ -262,19 +271,20 @@ gammapweights pweights[] = { -1.0 /* Expansion depth weight */ }, { - -1.0 /* Fine tuning expansion weight, 0 - 1 */ + 0.5 /* Fine tuning expansion weight, 0 - 1 */ } }, -#endif /* NEVER */ +#ifdef NEVER { - gmm_light_yellow, /* Treat yellow differently, to get purer result. */ + gmm_l_d_blue, /* Increase maintaining hue importance for blue */ { { - 0.9, /* Cusp luminance alignment weighting 0 = none, 1 = full */ - 0.8, /* Cusp chroma alignment weighting 0 = none, 1 = full */ - 0.7 /* Cusp hue alignment weighting 0 = none, 1 = full */ + -1.0, /* Cusp luminance alignment weighting 0 = none, 1 = full */ + -1.0, /* Cusp chroma alignment weighting 0 = none, 1 = full */ + 0.0 /* Cusp hue alignment weighting 0 = none, 1 = full */ }, - 1.15 /* Chroma expansion 1 = none */ + -1.0, /* 2.0 Alignment twist power, 0 = linear, 1 = curve, 2+ late curve */ + -1.0 /* Chroma expansion 1 = none */ }, { /* Radial weighting */ -1.0, /* Radial error overall weight, 0 + */ @@ -283,7 +293,7 @@ gammapweights pweights[] = { }, { /* Weighting of absolute error of destination from source */ -1.0, /* Absolute error overall weight */ - -1.0, /* Hue dominance vs l+c, 0 - 1 */ + 0.8, /* Hue dominance vs l+c, 0 - 1 */ -1.0, /* White l dominance vs, c, 0 - 1 */ -1.0, /* Grey l dominance vs, c, 0 - 1 */ @@ -296,7 +306,7 @@ gammapweights pweights[] = { -1.0 /* L error xover threshold in DE */ }, { /* Relative error preservation using smoothing */ - 20.0, 20.0 /* Relative Smoothing radius L* H* */ + -1.0, 15.0 /* Relative Smoothing radius L* H* */ }, { /* Weighting of excessive compression error, which is */ /* the src->dst vector length over the available dst depth. */ @@ -306,14 +316,15 @@ gammapweights pweights[] = { -1.0 /* Expansion depth weight */ }, { - 0.5 /* Fine tuning expansion weight, 0 - 1 */ + -1.0 /* Fine tuning expansion weight, 0 - 1 */ } }, +#endif /* NEVER */ { gmm_end, } }; -double psmooth = 5.0; /* [5.0] Level of RSPL smoothing for perceptual, 1 = nominal */ +double psmooth = 4.0; /* [5.0] Level of RSPL smoothing for perceptual, 1 = nominal */ /* Saturation mapping weights, where saturation has priority over smoothness */ gammapweights sweights[] = { @@ -325,6 +336,7 @@ gammapweights sweights[] = { 0.5, /* Cusp chroma alignment weighting 0 = none, 1 = full */ 0.6 /* Cusp hue alignment weighting 0 = none, 1 = full */ }, + 1.0, /* Alignment twist power, 0 = linear, 1 = curve, 2+ late curve */ 1.05 /* Chroma expansion 1 = none */ }, { /* Radial weighting */ @@ -347,7 +359,7 @@ gammapweights sweights[] = { 10.0 /* L error extra xover threshold in DE */ }, { /* Relative vector smoothing */ - 15.0, 20.0 /* Relative Smoothing radius L* H* */ + 20.0, 25.0 /* Relative Smoothing radius L* H* */ }, { /* Weighting of excessive compression error, which is */ /* the src->dst vector length over the available dst depth. */ @@ -368,6 +380,7 @@ gammapweights sweights[] = { 1.0, /* Cusp chroma alignment weighting 0 = none, 1 = full */ 1.0 /* Cusp hue alignment weighting 0 = none, 1 = full */ }, + 1.0, /* Alignment twist power, 0 = linear, 1 = curve, 2+ late curve */ 1.20 /* Chroma expansion 1 = none */ }, { /* Radial weighting */ @@ -428,6 +441,7 @@ static void domap(gammap *s, double *out, double *in); static void dopartialmap1(gammap *s, double *out, double *in); static void dopartialmap2(gammap *s, double *out, double *in); static gamut *parttransgamut(gammap *s, gamut *src); +static void invdomap1(gammap *s, double *out, double *in); #ifdef PLOT_GAMUTS static void map_trans(void *cntx, double out[3], double in[3]); #endif @@ -487,7 +501,7 @@ gammap *new_gammap( int j; #if defined(PLOT_LMAP) || defined(PLOT_GAMUTS) || defined(PLOT_3DKNEES) - fprintf(stderr,"##### A gammap.c PLOT is #defined ####\n"); +# pragma message("################ A gammap.c PLOT is #defined #########################") #endif if (verb) { @@ -504,6 +518,7 @@ gammap *new_gammap( /* Setup methods */ s->del = del_gammap; s->domap = domap; + s->invdomap1 = invdomap1; /* Now create everything */ @@ -898,10 +913,50 @@ glumknf = 1.0; } } - /* To ensure symetry between compression and expansion, always create RSPL */ - /* for compression and its inverse, and then swap grey and igrey rspl to compensate. */ - if ((dwL - dbL) > (swL - sbL)) +#ifdef PLOT_LMAP + printf("sbL = %f, swL = %f\n",sbL,swL); + printf("dbL = %f, dwL = %f\n",dbL,dwL); +#endif + + /* Remember our source and destination mapping targets */ + /* so that we can use them for fine tuning later. */ + + /* We scale the source and target white and black */ + /* points to match the L values of the source and destination */ + /* L curve mapping, as this is how we have chosen the */ + /* white and black point mapping for the link. */ + /* Put them back in pre-rotated space, so that we can */ + /* check the overall transform of the white and black points. */ + t = (swL - sr_cs_bp[0])/(sr_cs_wp[0] - sr_cs_bp[0]); + for (j = 0; j < 3; j++) + s_mt_wp[j] = sr_cs_bp[j] + t * (sr_cs_wp[j] - sr_cs_bp[j]); + icmMul3By3x4(s_mt_wp, s->igrot, s_mt_wp); + + t = (sbL - sr_cs_wp[0])/(sr_cs_bp[0] - sr_cs_wp[0]); + for (j = 0; j < 3; j++) + s_mt_bp[j] = sr_cs_wp[j] + t * (sr_cs_bp[j] - sr_cs_wp[j]); +//printf("~1 check black point rotated = %f %f %f\n",s_mt_bp[0],s_mt_bp[1],s_mt_bp[2]); + icmMul3By3x4(s_mt_bp, s->igrot, s_mt_bp); +//printf("~1 check black point prerotated = %f %f %f\n",s_mt_bp[0],s_mt_bp[1],s_mt_bp[2]); + + t = (dwL - dr_cs_bp[0])/(dr_cs_wp[0] - dr_cs_bp[0]); + for (j = 0; j < 3; j++) + d_mt_wp[j] = dr_cs_bp[j] + t * (dr_cs_wp[j] - dr_cs_bp[j]); + + for (j = 0; j < 3; j++) + d_mt_bp[j] = dr_cs_wp[j] + t * (dr_cs_bp[j] - dr_cs_wp[j]); + + /* To ensure symetry between compression and expansion, always create RSPL for */ + /* overall compression and its inverse, and then swap grey and igrey rspl to compensate. */ + /* We swap the source and desitination white and black points to achieve this. */ + /* Note that we could still have expansion at one end or the other, depending */ + /* on the center point location, so we need to allow for this in the rspl setup. */ + if ((dwL - dbL) > (swL - sbL)) { + double tt; + tt = swL; swL = dwL; dwL = tt; + tt = sbL; sbL = dbL; dbL = tt; revrspl = 1; + } /* White point end */ lpnts[ngreyp].p[0] = swL; @@ -913,9 +968,6 @@ glumknf = 1.0; lpnts[ngreyp].v[0] = dbL; lpnts[ngreyp++].w = 10.0; /* Must go through here */ -//printf("~1 white loc %f, val %f\n",swL,dwL); -//printf("~1 black loc %f, val %f\n",sbL,dbL); - #ifdef USE_GLUMKNF if (gmi->glumknf < 0.05) #endif /* USE_GLUMKNF */ @@ -931,33 +983,42 @@ glumknf = 1.0; #ifdef USE_GLUMKNF else { /* There is at least some weight in knee points */ double cppos = 0.50; /* Center point ratio between black and white */ - double cplv; /* Center point location and value */ - double kppos = 0.30; /* Knee point ratio between white/black & center */ + double cpll, cplv; /* Center point location and value */ + double kpwpos = 0.30; /* White knee point location prop. towards center */ + double kpbpos = 0.20; /* Black knee point location prop. towards center */ double kwl, kbl, kwv, kbv; /* Knee point values and locations */ double kwx, kbx; /* Knee point extra */ +#ifdef PLOT_LMAP + printf("%ssbL = %f, swL = %f\n", revrspl ? "(swapped) ": "", sbL,swL); + printf("%sdbL = %f, dwL = %f\n", revrspl ? "(swapped) ": "", dbL,dwL); +#endif -//printf("sbL = %f, swL = %f\n",sbL,swL); -//printf("dbL = %f, dwL = %f\n",dbL,dwL); - - /* Center point */ + /* Center point location */ + cpll = cppos * (swL - sbL) + sbL; + // ~~?? would this be better if the output + // was scaled by dwL/swL ? cplv = cppos * (swL - sbL) + sbL; -//printf("~1 computed cplv = %f\n",cplv); +#ifdef PLOT_LMAP + printf("cpll = %f, cplv = %f\n",cpll, cplv); +#endif #ifdef NEVER /* Don't use a center point */ - lpnts[ngreyp].p[0] = cplv; + lpnts[ngreyp].p[0] = cpll; lpnts[ngreyp].v[0] = cplv; - lpnts[ngreyp++].w = 0.5; + lpnts[ngreyp++].w = 5.0; #endif //printf("~1 black half diff = %f\n",dbL - sbL); //printf("~1 white half diff = %f\n",dwL - swL); /* Knee point locations */ - kwl = kppos * (cplv - swL) + swL; - kbl = kppos * (cplv - sbL) + sbL; + kwl = kpwpos * (cplv - swL) + swL; + kbl = kpbpos * (cplv - sbL) + sbL; /* Extra compression for white and black knees */ + // ~~ ie move knee point level beyond 45 degree line + // ~~ weigting of black point and white point differences kwx = 0.6 * (dbL - sbL) + 1.0 * (swL - dwL); kbx = 1.0 * (dbL - sbL) + 0.6 * (swL - dwL); @@ -975,47 +1036,22 @@ glumknf = 1.0; kbv = dbL; -//printf("~1 kbl = %f, kbv = %f\n",kbl, kbv); -//printf("~1 kwl = %f, kwv = %f\n",kwl, kwv); +#ifdef PLOT_LMAP + printf("using kbl = %f, kbv = %f\n",kbl, kbv); + printf("using kwl = %f, kwv = %f\n",kwl, kwv); +#endif - /* Emphasise points to cause "knee" curve */ + /* Emphasise points to cause white "knee" curve */ lpnts[ngreyp].p[0] = kwl; lpnts[ngreyp].v[0] = kwv; lpnts[ngreyp++].w = gmi->glumknf * gmi->glumknf; + /* Emphasise points to cause black "knee" curve */ lpnts[ngreyp].p[0] = kbl; lpnts[ngreyp].v[0] = kbv; lpnts[ngreyp++].w = 1.5 * gmi->glumknf * 1.5 * gmi->glumknf; } #endif /* USE_GLUMKNF */ - - /* Remember our source and destinatio mapping targets */ - /* so that we can use them for fine tuning later. */ - - /* We scale the source and target white and black */ - /* points to match the L values of the source and destination */ - /* L curve mapping, as this is how we have chosen the */ - /* white and black point mapping for the link. */ - /* Put them back in pre-rotated space, so that we can */ - /* check the overall transform of the white and black points. */ - t = (swL - sr_cs_bp[0])/(sr_cs_wp[0] - sr_cs_bp[0]); - for (j = 0; j < 3; j++) - s_mt_wp[j] = sr_cs_bp[j] + t * (sr_cs_wp[j] - sr_cs_bp[j]); - icmMul3By3x4(s_mt_wp, s->igrot, s_mt_wp); - - t = (sbL - sr_cs_wp[0])/(sr_cs_bp[0] - sr_cs_wp[0]); - for (j = 0; j < 3; j++) - s_mt_bp[j] = sr_cs_wp[j] + t * (sr_cs_bp[j] - sr_cs_wp[j]); -//printf("~1 check black point rotated = %f %f %f\n",s_mt_bp[0],s_mt_bp[1],s_mt_bp[2]); - icmMul3By3x4(s_mt_bp, s->igrot, s_mt_bp); -//printf("~1 check black point prerotated = %f %f %f\n",s_mt_bp[0],s_mt_bp[1],s_mt_bp[2]); - - t = (dwL - dr_cs_bp[0])/(dr_cs_wp[0] - dr_cs_bp[0]); - for (j = 0; j < 3; j++) - d_mt_wp[j] = dr_cs_bp[j] + t * (dr_cs_wp[j] - dr_cs_bp[j]); - - for (j = 0; j < 3; j++) - d_mt_bp[j] = dr_cs_wp[j] + t * (dr_cs_bp[j] - dr_cs_wp[j]); } /* We now create the 1D rspl L map, that compresses or expands the luminence */ @@ -1031,15 +1067,6 @@ glumknf = 1.0; double avgdev[MXDO]; int gres = 256; - if (revrspl) { /* Invert creation and usage for symetry between compress and exp. */ - int i; - for (i = 0; i < ngreyp; i++) { - double tt = lpnts[i].p[0]; /* Swap source and dest */ - lpnts[i].p[0] = lpnts[i].v[0]; - lpnts[i].v[0] = tt; - } - } - /* Create a 1D rspl, that is used to */ /* form the overall L compression mapping. */ if ((s->grey = new_rspl(RSPL_NOFLAGS, 1, 1)) == NULL) /* Allocate 1D -> 1D */ @@ -1076,7 +1103,7 @@ glumknf = 1.0; /* Create it from inverse lookups of s->grey */ s->igrey->set_rspl(s->igrey, 0, (void *)s->grey, inv_grey_func, il, ih, &gres, ol, oh); - if (revrspl) { /* Swap to compensate for expansion */ + if (revrspl) { /* Swap to compensate for swapping of white and black points */ rspl *tt = s->grey; s->grey = s->igrey; s->igrey = tt; @@ -1140,6 +1167,7 @@ glumknf = 1.0; /* if there is any compression or expansion to do. */ if (gmi->gamcpf > 1e-6 || gmi->gamexf > 1e-6) { cow *gpnts = NULL; /* Mapping points to create gamut mapping */ + int max_gpnts; int nspts; /* Number of source gamut surface points */ int rgridpts; /* Number of range surface grid points */ int i, j; @@ -1175,7 +1203,8 @@ typedef struct { } #endif - if ((gpnts = (cow *)malloc((nres + 3 * nspts + rgridpts) * sizeof(cow))) == NULL) { + max_gpnts = nres + 3 * nspts + rgridpts; + if ((gpnts = (cow *)malloc(max_gpnts * sizeof(cow))) == NULL) { fprintf(stderr,"gamut map: Malloc of mapping setup points failed\n"); s->grey->del(s->grey); s->igrey->del(s->igrey); @@ -1275,6 +1304,8 @@ typedef struct { gpnts[ngamp].w); #endif ngamp++; + if (ngamp >= max_gpnts) + error("gammap: internal, not enough space for mapping points A (%d > %d)\n",ngamp, max_gpnts); } #endif /* USE_GREYMAP */ @@ -1436,10 +1467,10 @@ typedef struct { doaxes = 1; #endif if (diagname != NULL) - wrl = new_vrml(diagname, doaxes, 0); + wrl = new_vrml(diagname, doaxes, vrml_lab); #ifdef PLOT_DIAG_WRL else - wrl = new_vrml("gammap.wrl", doaxes, 0); + wrl = new_vrml("gammap", doaxes, vrml_lab); #endif } @@ -1513,31 +1544,51 @@ typedef struct { } gpnts[ngamp++].w = 1.01; /* Main gamut surface mapping point */ /* (Use 1.01 as a marker value) */ + if (ngamp >= max_gpnts) + error("gammap: internal, not enough space for mapping points B (%d > %d)\n",ngamp, max_gpnts); #ifdef USE_GAMKNF /* Add sub surface mapping point if available */ if (nsm[i].vflag != 0) { /* Sub surface point is available */ /* Compute destination value which is a blend */ - /* between the source value and the fully mapped destination value. */ + /* between the source value and the knee adjusted destination */ icmBlend3(nsm[i].div2, nsm[i].sv2, nsm[i].dv2, cpexf); #ifdef NEVER printf("Src2 point = %f %f %f radius %f\n",nsm[i].sv2[0], nsm[i].sv2[1], nsm[i].sv2[2], nsm[i].sr); printf("Dst2 point = %f %f %f radius %f\n",nsm[i].dv2[0], nsm[i].dv2[1], nsm[i].dv2[2], nsm[i].dr); printf("Blended dst2 point = %f %f %f\n",nsm[i].div2[0], nsm[i].div2[1], nsm[i].div2[2]); + printf("Src/Dst3 point = %f %f %f w %f\n",nsm[i].sd2[0], nsm[i].sd2[1], nsm[i].sd2[2]); printf("\n"); #endif /* NEVER */ + /* Set the sub-surface gamut hull mapping point */ for (j = 0; j < 3; j++) { gpnts[ngamp].p[j] = nsm[i].sv2[j]; gpnts[ngamp].v[j] = nsm[i].div2[j]; } gpnts[ngamp++].w = nsm[i].w2; /* Sub-suface mapping points */ + + if (ngamp >= max_gpnts) + error("gammap: internal, not enough space for mapping points C (%d > %d)\n",ngamp, max_gpnts); + + /* Set the sub-surface gamut hull mapping point */ + for (j = 0; j < 3; j++) { + gpnts[ngamp].p[j] = nsm[i].sd3[j]; + gpnts[ngamp].v[j] = nsm[i].sd3[j]; + } + gpnts[ngamp++].w = nsm[i].w3; /* Sub-suface mapping points */ + + if (ngamp >= max_gpnts) + error("gammap: internal, not enough space for mapping points D (%d > %d)\n",ngamp, max_gpnts); } #endif /* USE_GAMKNF */ } + if (ngamp >= max_gpnts) + error("gammap: internal, not enough space for mapping points (%d > %d)\n",ngamp, max_gpnts); + /* Create preliminary gamut mapping rspl, without grid boundary values. */ /* We use this to lookup the mapping for points on the source space gamut */ /* that result from clipping our grid boundary points */ @@ -1601,6 +1652,9 @@ typedef struct { /* A low weight seems to be enough ? */ /* the lower the better in terms of geting best hull mapping fidelity */ gpnts[ngamp++].w = 0.05 * ww; + + if (ngamp >= max_gpnts) + error("gammap: internal, not enough space for mapping points E (%d > %d)\n",ngamp, max_gpnts); } DC_INC(gc); if (DC_DONE(gc)) @@ -1833,11 +1887,11 @@ typedef struct { /* Add the source and dest gamut surfaces */ #ifdef PLOT_SRC_GMT - wrl->make_gamut_surface_2(wrl, sil_gam, 0.6, 0, cc); + wrl->make_gamut_surface_2(wrl, sil_gam, 0.6, 0, cc); /* Grey */ #endif /* PLOT_SRC_GMT */ #ifdef PLOT_DST_GMT cc[0] = -1.0; - wrl->make_gamut_surface(wrl, d_gam, 0.2, cc); + wrl->make_gamut_surface(wrl, d_gam, 0.3, cc); /* Natural color */ #endif /* PLOT_DST_GMT */ #ifdef PLOT_DIGAM if (nsm[0].dgam == NULL) @@ -1918,7 +1972,6 @@ typedef struct { # ifdef SHOW_SUB_SURF if (nsm[i].vflag != 0) { /* Sub surface point is available */ - wrl->add_col_vertex(wrl, 0, nsm[i].sv2, lgrey); /* Subs-surf Source value */ wrl->add_col_vertex(wrl, 0, nsm[i].div2, purp); /* Blended destination value */ } @@ -1928,14 +1981,29 @@ typedef struct { wrl->make_lines(wrl, 0, 2); /* Guide vectors */ #endif /* Show vectors */ -#ifdef SHOW_VECTOR_INDEXES +#if defined(SHOW_VECTOR_INDEXES) || defined(SHOW_SUB_PNTS) for (i = 0; i < nnsm; i++) { - double cream[3] = { 0.7, 0.7, 0.5 }; - char buf[100]; - sprintf(buf, "%d", i); - wrl->add_text(wrl, buf, nsm[i].sv, cream, 0.5); - } +#ifdef SHOW_VECTOR_INDEXES + { + double cream[3] = { 0.7, 0.7, 0.5 }; + char buf[100]; + sprintf(buf, "%d", i); + wrl->add_text(wrl, buf, nsm[i].sv, cream, 0.5); + } #endif /* SHOW_VECTOR_INDEXES */ +# ifdef SHOW_SUB_PNTS + if (nsm[i].vflag != 0) { /* Sub surface point is available */ + double red[3] = { 1.0, 0.0, 0.0 }; + double green[3] = { 0.0, 1.0, 0.0 }; + double yellow[3] = { 1.0, 1.0, 0.0 }; + + wrl->add_marker(wrl, nsm[i].sv2, red, 1.0); /* Subs-surf Source value */ + wrl->add_marker(wrl, nsm[i].div2, green, 1.0); /* Blended destination value */ + wrl->add_marker(wrl, nsm[i].sd3, yellow, 1.0); /* Deep sub-surface point */ + } +# endif /* SHOW_SUB_PNTS */ + } +#endif /* add the locus from locus.ts file */ if (locus != NULL) { @@ -2184,10 +2252,10 @@ typedef struct { } #ifdef PLOT_GAMUTS - scl_gam->write_vrml(scl_gam, "src.wrl", 1, 0); - sil_gam->write_vrml(sil_gam, "img.wrl", 1, 0); - d_gam->write_vrml(d_gam, "dst.wrl", 1, 0); - sc_gam->write_trans_vrml(sc_gam, "gmsrc.wrl", 1, 0, map_trans, s); + scl_gam->write_vrml(scl_gam, "src", 1, 0); + sil_gam->write_vrml(sil_gam, "img", 1, 0); + d_gam->write_vrml(d_gam, "dst", 1, 0); + sc_gam->write_trans_vrml(sc_gam, "gmsrc", 1, 0, map_trans, s); #endif if (sil_gam != scl_gam) @@ -2222,6 +2290,8 @@ gammap *s free(s); } +/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */ + /* Apply the gamut mapping to the given color value */ static void domap( gammap *s, @@ -2336,6 +2406,51 @@ double *in } } +/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */ + +/* powell function - minimise error to target */ +static double invgmfunc( +void *fdata, +double *tp +) { + gammap *s = (gammap *)fdata; + int i; + double gmv[3]; + double tt, rv = 0.0; + + domap(s, gmv, tp); + for (i = 0; i < 3; i++) { + double tt = gmv[i] - s->tv[i]; + rv += tt * tt; + } + + return rv; +} + +/* Invert a gamut mapping using powell */ +static void invdomap1( +gammap *s, +double *out, +double *in +) { + double ss[3] = { 20.0, 20.0, 20.0 }; /* search area */ + double tp[3], rv; + + s->tv[0] = tp[0] = in[0]; + s->tv[1] = tp[1] = in[1]; + s->tv[2] = tp[2] = in[2]; + + if (powell(&rv, 3, tp, ss, 1e-7, 5000, invgmfunc, (void *)s, NULL, NULL) != 0) { + warning("gamut invdomap1 failed on %f %f %f\n", in[0], in[1], in[2]); + } + + out[0] = tp[0]; + out[1] = tp[1]; + out[2] = tp[2]; +} + +/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */ + /* Function to pass to rspl to invert grey curve */ static void inv_grey_func( void *cntx, diff --git a/gamut/gammap.h b/gamut/gammap.h index 3bc1c8c..69207a4 100644 --- a/gamut/gammap.h +++ b/gamut/gammap.h @@ -31,11 +31,13 @@ struct _gammap { rspl *map; /* Rotated, L mapped Lab -> Lab gamut map */ double imin[3], imax[3]; /* Input range limits of map */ + double tv[3]; /* Inversion target value */ /* Public: */ /* Methods */ void (*del)(struct _gammap *s); /* Free ourselves */ void (*domap)(struct _gammap *s, double *out, double *in); /* Do the mapping */ + void (*invdomap1)(struct _gammap *s, double *out, double *in); /* Do the inverse mapping */ }; typedef struct _gammap gammap; diff --git a/gamut/gamut.c b/gamut/gamut.c index 09a5110..02b18dc 100644 --- a/gamut/gamut.c +++ b/gamut/gamut.c @@ -50,22 +50,22 @@ #define COLORED_VRML -#define DO_TWOPASS /* Second pass with adjustment based on first pass */ +#define DO_TWOPASS /* [def] Second pass with adjustment based on first pass */ -#define FAKE_SEED_SIZE 0.1 /* Usually 0.1 */ -#define TRIANG_TOL 1e-10 /* Triangulation tollerance, usually 1e-10 */ +#define FAKE_SEED_SIZE 0.1 /* [0.1] */ +#define TRIANG_TOL 1e-10 /* [1e-10] Triangulation tollerance */ -#define NORM_LOG_POW 0.25 /* Normal, colorspace lopow value */ -#define RAST_LOG_POW 0.05 /* Raster lopow value */ +#define NORM_LOG_POW 0.25 /* [0.25] Normal, colorspace lopow value */ +#define RAST_LOG_POW 0.05 /* [0.05] Raster lopow value */ #undef TEST_CONVEX_HULL /* Use pure convex hull, not log hull */ -#undef DEBUG_TRIANG /* Enable detailed triangulation debugging */ -#undef DEBUG_TRIANG_VRML /* Create debug.wrl for each step of triangulation */ - /* (Only on second pass if #define DO_TWOPASS) */ +#undef DEBUG_TRIANG /* Enable detailed triangulation debugging & diag2 */ +#undef DEBUG_TRIANG_VRML /* Create diag1 vis & diag2 vis for each step */ + /* of triangulation (Only on second pass if #define DO_TWOPASS) */ #undef DEBUG_TRIANG_VRML_STEP /* Wait for return after each step */ -#undef DEBUG_SPLIT_VRML /* Create debug.wrl for each step of triangle plane split */ +#undef DEBUG_SPLIT_VRML /* Create diag3 vis for each step of triangle plane split */ #undef TEST_LOOKUP #undef TEST_NEAREST @@ -77,7 +77,8 @@ #undef ASSERTS /* Do internal checking */ -#undef INTERSECT_DEBUG /* Turn on compute_vector_isect debugging, inc isect.wrl plot */ +#undef INTERSECT_DEBUG /* Turn on compute_vector_isect debugging, */ + /* and isect & isect2 vis plot if deb_insect set to 1 */ #undef INTERSECT_VERIFY /* Verify compute_vector_isect against brute force search */ /* These routines support: @@ -2327,7 +2328,7 @@ gtri *tp /* Triangle faces to be added */ add_to_hit_list(s, hlp, t2); /* Add edge 2 to hit list */ } -#ifdef DEBUG_TRIANG +#if defined(DEBUG_TRIANG) || defined(DEBUG_TRIANG_VRML) typedef struct { int tix[3]; /* Triangle indexes */ int type; /* 0 = hit, 1 = added */ @@ -2343,7 +2344,7 @@ gvert *v /* Vertex to insert */ gtri *hl; /* Triangle face hit list (polygon faces) */ double tol = TRIANG_TOL; int hit = 0; /* Vertex expands hull flag */ -#ifdef DEBUG_TRIANG +#if defined(DEBUG_TRIANG) || defined(DEBUG_TRIANG_VRML) int intri = 0; /* Vertex landed in a triangle */ XLIST(tidxs, hittris) tidxs xxs; @@ -2379,7 +2380,7 @@ gvert *v /* Vertex to insert */ /* If vertex is above the log hull surface, add triangle to the hit list. */ if (c < -tol) { -#ifdef DEBUG_TRIANG +#if defined(DEBUG_TRIANG) || defined(DEBUG_TRIANG_VRML) int j; double bds = -1e10; #endif @@ -2390,7 +2391,7 @@ gvert *v /* Vertex to insert */ tp->n, tp->v[0]->n, tp->v[1]->n, tp->v[2]->n,c); #endif -#ifdef DEBUG_TRIANG +#if defined(DEBUG_TRIANG) || defined(DEBUG_TRIANG_VRML) for (j = 0; j < 3; j++) { double ds; ds = tp->ee[j][0] * v->ch[0] @@ -2398,14 +2399,18 @@ gvert *v /* Vertex to insert */ + tp->ee[j][2] * v->ch[2] + tp->ee[j][3]; if (ds > tol) { +#ifdef DEBUG_TRIANG printf("Vertex is not in triangle by %e\n",ds); +#endif break; } if (ds > bds) bds = ds; } if (j >= 3) { +#ifdef DEBUG_TRIANG printf("Vertex is in triangle by %e\n",bds); +#endif intri = 1; /* Landed in this triangle */ } @@ -2458,7 +2463,7 @@ if (!intri) printf("~1 ###### vertex didn't land in any triangle! ########\n"); xtp = tp->e[0]->t[1]; //printf("Got a hit on triangle %d: %d %d %d\n", xtp->n, xtp->v[0]->n, xtp->v[1]->n, xtp->v[2]->n); -#ifdef DEBUG_TRIANG +#if defined(DEBUG_TRIANG) || defined(DEBUG_TRIANG_VRML) xxs.tix[0] = xtp->v[0]->n, xxs.tix[1] = xtp->v[1]->n, xxs.tix[2] = xtp->v[2]->n; xxs.type = 1; XLIST_ADD(&hittris, xxs) @@ -2472,8 +2477,13 @@ if (!intri) printf("~1 ###### vertex didn't land in any triangle! ########\n"); } #ifdef DEBUG_TRIANG_VRML - write_diag_vrml(s, v->ch, hittris.no, hittris.list, hl); -#endif +#ifdef DO_TWOPASS + if (s->pass > 0) +#endif /* DO_TWOPASS */ + { + write_diag_vrml(s, v->ch, hittris.no, hittris.list, hl); /* diag1 triang hit */ + } +#endif /* DEBUG_TRIANG_VRML */ //printf("About to turn polygon faces into triangles\n"); /* Turn all the faces that made it to the */ @@ -2509,7 +2519,11 @@ if (!intri) printf("~1 ###### vertex didn't land in any triangle! ########\n"); //printf("~1 Creating new triangle %d: %d %d %d\n", tp->n, tp->v[0]->n, tp->v[1]->n, tp->v[2]->n); } END_FOR_ALL_ITEMS(tp); -#ifdef DEBUG_TRIANG_VRML +#if defined(DEBUG_TRIANG) || defined(DEBUG_TRIANG_VRML) +#ifdef DO_TWOPASS + if (s->pass > 0) +#endif /* DO_TWOPASS */ + { tp = hl; hittris.no = 0; FOR_ALL_ITEMS(gtri, tp) { @@ -2517,14 +2531,13 @@ if (!intri) printf("~1 ###### vertex didn't land in any triangle! ########\n"); xxs.type = 2; XLIST_ADD(&hittris, xxs) } END_FOR_ALL_ITEMS(tp); - write_diag_vrml(s, v->ch, hittris.no, hittris.list, NULL); + write_diag_vrml(s, v->ch, hittris.no, hittris.list, NULL); /* diag2 */ #ifdef DEBUG_TRIANG_VRML_STEP -#ifdef DO_TWOPASS - if (s->pass > 0) -#endif /* DO_TWOPASS */ + printf("Waiting for return key after diag1%s and diag1%s\n",vrml_ext(),vrml_ext()); getchar(); #endif -#endif + } +#endif /* DEBUG_TRIANG_VRML || DEBUG_TRIANG_VRML */ /* Move them to the triangulation. */ tp = hl; @@ -2542,8 +2555,13 @@ if (!intri) printf("~1 ###### vertex didn't land in any triangle! ########\n"); v->f &= ~GVERT_INSIDE; /* and it's not inside */ } -#ifdef DEBUG_TRIANG +#if defined(DEBUG_TRIANG) || defined(DEBUG_TRIANG_VRML) +#ifdef DO_TWOPASS + if (s->pass > 0) +#endif /* DO_TWOPASS */ + { XLIST_FREE(&hittris); + } #endif } @@ -3498,7 +3516,7 @@ double *in /* input point (absolute)*/ rv = radial_point(s, s->lutree, nin); if (rv < 0.0) { - error("gamut: radial internal error - failed to find triangle\n"); + error("gamut: radial internal error - failed to find triangle (rv %f)\n",rv); } if (out != NULL) { @@ -3753,7 +3771,8 @@ int llen /* Number of triangles in the list */ } #ifdef DEBUG_SPLIT_VRML - write_split_diag_vrml(s, list, llen); + write_split_diag_vrml(s, list, llen); /* diag3.wrl/xdom/x3dom */ + printf("Waiting for return key after diag3%s:\n",vrml_ext()); getchar(); #endif /* DEBUG_SPLIT_VRML */ @@ -3904,14 +3923,14 @@ double *nin /* Normalised center relative point */ /* Return the location on the surface of the triangle */ /* that is intersected by the radial direction */ /* of the given relative point. Return the distance to */ -/* the gamut surface. */ +/* the gamut surface. Return < 0.0 on fail. */ static double radial_point( gamut *s, gbsp *np, /* BSP node pointer we're at */ double *nin /* Normalised center relative point */ ) { gtri *t; - double rv; + double rv, num, denom; //if (trace) printf("~1 radial_point: BSP 0x%x tag = %d, point %f %f %f\n", np,np->tag,nin[0],nin[1],nin[2]); @@ -3925,8 +3944,14 @@ double *nin /* Normalised center relative point */ /* Compute the intersection of the input vector with the triangle plane */ /* (Since nin[] is already relative, we don't need to subtract cent[] from it) */ - rv = -(t->pe[0] * s->cent[0] + t->pe[1] * s->cent[1] + t->pe[2] * s->cent[2] + t->pe[3])/ - (t->pe[0] * nin[0] + t->pe[1] * nin[1] + t->pe[2] * nin[2]); + num = -(t->pe[0] * s->cent[0] + t->pe[1] * s->cent[1] + t->pe[2] * s->cent[2] + t->pe[3]); + denom = (t->pe[0] * nin[0] + t->pe[1] * nin[1] + t->pe[2] * nin[2]); + + if (fabs(denom) < 1e-9) { + /* Hmm. The ray is paralell to the triangle ? */ + error("radial_point: failed to intersect radial triangle\n"); + } + rv = num/denom; #ifdef ASSERTS /* check the result */ @@ -4809,7 +4834,7 @@ gtri **omxtri #define ISDBG(xxx) if (deb_insect) printf xxx -int deb_insect = 0; /* Do vrml plot */ +int deb_insect = 1; /* Do vrml plot */ /* Debug - given a BSP node, add all the triangles vertexes indexes */ /* below this node to the diagnosti wrl */ @@ -4886,6 +4911,8 @@ int *lu /* Number used in list */ #endif #ifdef INTERSECT_DEBUG if (deb_insect) { + char isect[20] = "isect"; + char isect2[20] = "isect2"; vrml *wrl = NULL; double cc[3] = { 1.0, 1.0, 0.0 }; double red[3] = { 1.0, 0.0, 0.0 }; @@ -4894,10 +4921,13 @@ int *lu /* Number used in list */ double p1[3], p2[3]; int i; - unlink("isect2.wrl"); - rename("isect.wrl", "isect2.wrl"); + strcat(isect2, vrml_ext()); + strcat(isect, vrml_ext()); + + unlink(isect2); + rename(isect, isect2); - if ((wrl = new_vrml("isect.wrl", 0)) == NULL) + if ((wrl = new_vrml("isect", 0, vrml_lab)) == NULL) error("New vrml failed"); /* The triangles below the BSP */ @@ -4946,9 +4976,8 @@ int *lu /* Number used in list */ wrl->add_marker(wrl, p2, blue, 0.5); wrl->del(wrl); - printf("Waiting for input after writing 'isect.wrl':\n"); + printf("Waiting for input after writing '%s':\n", isect); getchar(); - } #endif @@ -5772,22 +5801,22 @@ int ll /* Size of list. */ #endif /* INTERSECT_DEBUG */ /* ===================================================== */ -/* Write to a VRML .wrl file */ +/* Write to a VRML/X3d file */ /* Return non-zero on error */ static int write_vrml( gamut *s, -char *filename, +char *filename, /* Extension will be set automatically */ int doaxes, /* Non-zero if axes are to be written */ int docusps /* Non-zero if cusp points are to be marked */ ) { return write_trans_vrml(s, filename, doaxes, docusps, NULL, NULL); } -/* Write to a VRML .wrl file */ +/* Write to a VRML/X3d file */ /* Return non-zero on error */ static int write_trans_vrml( gamut *s, -char *filename, +char *filename, /* Extension will be set automatically */ int doaxes, /* Non-zero if axes are to be written */ int docusps, /* Non-zero if cusp points are to be marked */ void (*transform)(void *cntx, double out[3], double in[3]), /* Optional transformation callback */ @@ -5795,123 +5824,19 @@ void *cntx ) { int i; gtri *tp; /* Triangle pointer */ - FILE *wrl; - struct { - double x, y, z; - double wx, wy, wz; - double r, g, b; - } axes[5] = { - { 0 - s->cent[1], 0 - s->cent[2], 50 - s->cent[0], 2, 2, 100, .7, .7, .7 }, - /* L axis */ - { 50 - s->cent[1], 0 - s->cent[2], 0 - s->cent[0], 100, 2, 2, 1, 0, 0 }, - /* +a (red) axis */ - { 0 - s->cent[1], -50 - s->cent[2], 0 - s->cent[0], 2, 100, 2, 0, 0, 1 }, - /* -b (blue) axis */ - { -50 - s->cent[1], 0 - s->cent[2], 0 - s->cent[0], 100, 2, 2, 0, 1, 0 }, - /* -a (green) axis */ - { 0 - s->cent[1], 50 - s->cent[2], 0 - s->cent[0], 2, 100, 2, 1, 1, 0 }, - /* +b (yellow) axis */ - }; - - /* Define the labels */ - struct { - double x, y, z; - double size; - char *string; - double r, g, b; - } labels[6] = { - { -2 - s->cent[1], 2 - s->cent[2], - s->cent[0] + 100 + 10, 10, "+L*", .7, .7, .7 }, - /* Top of L axis */ - { -2 - s->cent[1], 2 - s->cent[2], - s->cent[0] - 10, 10, "0", .7, .7, .7 }, - /* Bottom of L axis */ - { 100 + 5 - s->cent[1], -3 - s->cent[2], 0 - s->cent[0], 10, "+a*", 1, 0, 0 }, - /* +a (red) axis */ - { -5 - s->cent[1], -100 - 10 - s->cent[2], 0 - s->cent[0], 10, "-b*", 0, 0, 1 }, - /* -b (blue) axis */ - { -100 - 15 - s->cent[1], -3 - s->cent[2], 0 - s->cent[0], 10, "-a*", 0, 0, 1 }, - /* -a (green) axis */ - { -5 - s->cent[1], 100 + 5 - s->cent[2], 0 - s->cent[0], 10, "+b*", 1, 1, 0 }, - /* +b (yellow) axis */ - }; + vrml *wrl; if IS_LIST_EMPTY(s->tris) triangulate(s); - if ((wrl = fopen(filename,"w")) == NULL) { - fprintf(stderr,"Error opening output file '%s'\n",filename); + if ((wrl = new_vrml(filename, doaxes, vrml_lab)) == NULL) { + fprintf(stderr,"Error creating %s output '%s%s'\n",vrml_format(),filename,vrml_ext()); return 2; } - /* Spit out a VRML 2 Object surface of gamut */ - - fprintf(wrl,"#VRML V2.0 utf8\n"); - fprintf(wrl,"\n"); - fprintf(wrl,"# Created by the Argyll CMS\n"); - fprintf(wrl,"Transform {\n"); - fprintf(wrl,"children [\n"); - fprintf(wrl," NavigationInfo {\n"); - fprintf(wrl," type \"EXAMINE\" # It's an object we examine\n"); - fprintf(wrl," } # We'll add our own light\n"); - fprintf(wrl,"\n"); - fprintf(wrl," DirectionalLight {\n"); - fprintf(wrl," intensity 0.2\n"); - fprintf(wrl," ambientIntensity 0.1\n"); - fprintf(wrl," direction -1 -1 -1\n"); - fprintf(wrl," }\n"); - fprintf(wrl," DirectionalLight {\n"); - fprintf(wrl," intensity 0.6\n"); - fprintf(wrl," ambientIntensity 0.2\n"); - fprintf(wrl," direction 1 1 1\n"); - fprintf(wrl," }\n"); - fprintf(wrl,"\n"); - fprintf(wrl," Viewpoint {\n"); - fprintf(wrl," position 0 0 250 # Position we view from\n"); - fprintf(wrl," }\n"); - fprintf(wrl,"\n"); - if (doaxes != 0) { - fprintf(wrl,"# Lab axes as boxes:\n"); - for (i = 0; i < 5; i++) { - fprintf(wrl,"Transform { translation %f %f %f\n", axes[i].x, axes[i].y, axes[i].z); - fprintf(wrl,"\tchildren [\n"); - fprintf(wrl,"\t\tShape {\n"); - fprintf(wrl,"\t\t\tgeometry Box { size %f %f %f }\n", - axes[i].wx, axes[i].wy, axes[i].wz); - fprintf(wrl,"\t\t\tappearance Appearance { material Material "); - fprintf(wrl,"{ diffuseColor %f %f %f} }\n", axes[i].r, axes[i].g, axes[i].b); - fprintf(wrl,"\t\t}\n"); - fprintf(wrl,"\t]\n"); - fprintf(wrl,"}\n"); - } - fprintf(wrl,"# Axes identification:\n"); - for (i = 0; i < 6; i++) { - fprintf(wrl,"Transform { translation %f %f %f\n", labels[i].x, labels[i].y, labels[i].z); - fprintf(wrl,"\tchildren [\n"); - fprintf(wrl,"\t\tShape {\n"); - fprintf(wrl,"\t\t\tgeometry Text { string [\"%s\"]\n",labels[i].string); - fprintf(wrl,"\t\t\t\tfontStyle FontStyle { family \"SANS\" style \"BOLD\" size %f }\n", - labels[i].size); - fprintf(wrl,"\t\t\t\t}\n"); - fprintf(wrl,"\t\t\tappearance Appearance { material Material "); - fprintf(wrl,"{ diffuseColor %f %f %f} }\n", labels[i].r, labels[i].g, labels[i].b); - fprintf(wrl,"\t\t}\n"); - fprintf(wrl,"\t]\n"); - fprintf(wrl,"}\n"); - } - fprintf(wrl,"\n"); - } - fprintf(wrl," Transform {\n"); - fprintf(wrl," translation 0 0 0\n"); - fprintf(wrl," children [\n"); - fprintf(wrl," Shape { \n"); - fprintf(wrl," geometry IndexedFaceSet {\n"); - fprintf(wrl," ccw FALSE\n"); - fprintf(wrl," convex TRUE\n"); - fprintf(wrl,"\n"); - fprintf(wrl," coord Coordinate { \n"); - fprintf(wrl," point [ # Verticy coordinates\n"); + wrl->start_line_set(wrl, 0); /* Spit out the point values, in order. */ - /* Note that a->x, b->y, L->z */ for (i = 0; i < s->nv; i++) { double out[3]; @@ -5934,34 +5859,35 @@ void *cntx rr[1] = s->verts[i]->hc - 0.5 * s->verts[i]->w; rr[2] = s->verts[i]->vc - 0.5 * s->verts[i]->h; gamut_radial2rect(s, cc, rr); - fprintf(wrl,"%f %f %f,\n",cc[1], cc[2], cc[0]); + wrl->add_vertex(wrl, 0, cc); rr[1] = s->verts[i]->hc - 0.5 * s->verts[i]->w; rr[2] = s->verts[i]->vc + 0.5 * s->verts[i]->h; gamut_radial2rect(s, cc, rr); - fprintf(wrl,"%f %f %f,\n",cc[1], cc[2], cc[0]); + wrl->add_vertex(wrl, 0, cc); rr[1] = s->verts[i]->hc + 0.5 * s->verts[i]->w; rr[2] = s->verts[i]->vc + 0.5 * s->verts[i]->h; gamut_radial2rect(s, cc, rr); - fprintf(wrl,"%f %f %f,\n",cc[1], cc[2], cc[0]); + wrl->add_vertex(wrl, 0, cc); rr[1] = s->verts[i]->hc + 0.5 * s->verts[i]->w; rr[2] = s->verts[i]->vc - 0.5 * s->verts[i]->h; gamut_radial2rect(s, cc, rr); - fprintf(wrl,"%f %f %f,\n",cc[1], cc[2], cc[0]); + wrl->add_vertex(wrl, 0, cc); } #else /* Show point data */ # ifdef SHOW_SPHERE /* Show surface on sphere */ - fprintf(wrl,"%f %f %f,\n",s->verts[i]->sp[1], s->verts[i]->sp[2], - s->verts[i]->sp[0]); -# else -# ifdef SHOW_HULL_PNTS - fprintf(wrl,"%f %f %f,\n",s->verts[i]->ch[1], s->verts[i]->ch[2], - s->verts[i]->ch[0]); + wrl->add_vertex(wrl, 0, s->verts[i]->sp); # else +# ifdef SHOW_HULL_PNTS + out[0] = s->verts[i]->ch[0] + s->cent[0]; + out[1] = s->verts[i]->ch[1] + s->cent[1]; + out[2] = s->verts[i]->ch[2] + s->cent[2]; + wrl->add_vertex(wrl, 0, out); +# else /* Show normal gamut surface */ out[0] = s->verts[i]->p[0]; out[1] = s->verts[i]->p[1]; @@ -5970,99 +5896,61 @@ void *cntx if (transform) transform(cntx, out, out); /* Do transform */ - fprintf(wrl,"%f %f %f,\n",out[1]-s->cent[1], out[2]-s->cent[2], out[0]-s->cent[0]); + wrl->add_vertex(wrl, 0, out); -# endif /* SHOW_HULL_PNTS */ +# endif /* SHOW_HULL_PNTS */ # endif /* SHOW_SPHERE */ #endif /* SHOW_BUCKETS */ } - fprintf(wrl," ]\n"); - fprintf(wrl," }\n"); - fprintf(wrl,"\n"); - fprintf(wrl," coordIndex [ # Indexes of poligon Verticies \n"); #ifdef SHOW_BUCKETS /* Show vertex buckets as surface */ for (i = 0; i < s->nv; i++) { int j = s->verts[i]->sn; + int ix[4]; if (!(s->verts[i]->f & GVERT_SET)) continue; - fprintf(wrl,"%d, %d, %d, %d, -1\n", j * 4, j * 4 + 1, j * 4 + 2, j * 4 + 3); + ix[0] = j * 4; + ix[1] = j * 4 + 1; + ix[2] = j * 4 + 2; + ix[3] = j * 4 + 3; + wrl->add_quad(wrl, 0, ix); } #else /* Show gamut triangular surface */ tp = s->tris; FOR_ALL_ITEMS(gtri, tp) { - fprintf(wrl,"%d, %d, %d, -1\n", tp->v[0]->tn, tp->v[1]->tn, tp->v[2]->tn); + int ix[3]; + ix[0] = tp->v[0]->tn; + ix[1] = tp->v[1]->tn; + ix[2] = tp->v[2]->tn; + wrl->add_triangle(wrl, 0, ix); } END_FOR_ALL_ITEMS(tp); #endif /* SHOW_BUCKETS */ - fprintf(wrl," ]\n"); - fprintf(wrl,"\n"); - fprintf(wrl," colorPerVertex TRUE\n"); - fprintf(wrl," color Color {\n"); - fprintf(wrl," color [ # RGB colors of each vertex\n"); - - /* Spit out the colors for each vertex */ - for (i = 0; i < s->nv; i++) { + { double rgb[3]; -#ifdef SHOW_BUCKETS /* Show vertex buckets as surface */ - if (!(s->verts[i]->f & GVERT_SET)) -#else - if (!(s->verts[i]->f & GVERT_TRI)) -#endif - continue; #ifdef COLORED_VRML - gamut_Lab2RGB(rgb, s->verts[i]->p); + rgb[0] = -1.0; #else rgb[0] = rgb[1] = rgb[2] = 1.0; #endif - fprintf(wrl,"%f %f %f,\n", rgb[0], rgb[1], rgb[2]); + #ifdef SHOW_BUCKETS /* Show vertex buckets as surface */ - fprintf(wrl,"%f %f %f,\n", rgb[0], rgb[1], rgb[2]); - fprintf(wrl,"%f %f %f,\n", rgb[0], rgb[1], rgb[2]); - fprintf(wrl,"%f %f %f,\n", rgb[0], rgb[1], rgb[2]); + wrl->make_quads(wrl, 0, 0.0, rgb); +#else /* !SHOW_BUCKETS */ + wrl->make_triangles(wrl, 0, 0.0, rgb); #endif /* SHOW_BUCKETS */ } - fprintf(wrl," ] \n"); - fprintf(wrl," }\n"); - fprintf(wrl," }\n"); - fprintf(wrl," appearance Appearance { \n"); - fprintf(wrl," material Material {\n"); - fprintf(wrl," transparency 0.0\n"); - fprintf(wrl," ambientIntensity 0.3\n"); - fprintf(wrl," shininess 0.5\n"); - fprintf(wrl," }\n"); - fprintf(wrl," }\n"); - fprintf(wrl," } # end Shape\n"); - fprintf(wrl," ]\n"); - fprintf(wrl," }\n"); if (s->gawbset && doaxes) { + double rgb[3] = { 0.9, 0.9, 0.9 }; /* Show the gamut white and black points */ - fprintf(wrl,"\n"); - fprintf(wrl," Transform {\n"); - fprintf(wrl," translation %f %f %f\n",s->ga_wp[1]-s->cent[1], s->ga_wp[2]-s->cent[2], s->ga_wp[0]-s->cent[0]); - fprintf(wrl," children [\n"); - fprintf(wrl," Shape { \n"); - fprintf(wrl," geometry Sphere { radius 2.0 }\n"); - fprintf(wrl," appearance Appearance { material Material { diffuseColor 0.9 0.9 0.9 } }\n"); - fprintf(wrl," } \n"); - fprintf(wrl," ]\n"); - fprintf(wrl," }\n"); - fprintf(wrl,"\n"); - fprintf(wrl," Transform {\n"); - fprintf(wrl," translation %f %f %f\n",s->ga_bp[1]-s->cent[1], s->ga_bp[2]-s->cent[2], s->ga_bp[0]-s->cent[0]); - fprintf(wrl," children [\n"); - fprintf(wrl," Shape { \n"); - fprintf(wrl," geometry Sphere { radius 2.0 }\n"); - fprintf(wrl," appearance Appearance { material Material { diffuseColor 0.9 0.9 0.9 } }\n"); - fprintf(wrl," } \n"); - fprintf(wrl," ]\n"); - fprintf(wrl," }\n"); + wrl->add_marker(wrl, s->ga_wp, rgb, 2.0); + wrl->add_marker(wrl, s->ga_bp, rgb, 2.0); } if (docusps && s->cu_inited != 0) { @@ -6075,30 +5963,17 @@ void *cntx { 1.0, 0.1, 1.0 } /* Magenta */ }; - for (i = 0; i < 6; i++) { - fprintf(wrl,"\n"); - fprintf(wrl," Transform {\n"); - fprintf(wrl," translation %f %f %f\n",s->cusps[i][1]-s->cent[1], s->cusps[i][2]-s->cent[2], s->cusps[i][0]-s->cent[0]); - fprintf(wrl," children [\n"); - fprintf(wrl," Shape { \n"); - fprintf(wrl," geometry Sphere { radius 2.0 }\n"); - fprintf(wrl," appearance Appearance { material Material { diffuseColor %f %f %f } }\n", ccolors[i][0],ccolors[i][1],ccolors[i][2]); - fprintf(wrl," } \n"); - fprintf(wrl," ]\n"); - fprintf(wrl," }\n"); - } + for (i = 0; i < 6; i++) + wrl->add_marker(wrl, s->cusps[i], ccolors[i], 2.0); } #ifdef TEST_LOOKUP { int i, j; double in[3], out[3]; + double rgb[3] = { 1.0, 1.0, 1.0 }; - fprintf(wrl,"\n"); - fprintf(wrl,"Shape {\n"); - fprintf(wrl," geometry PointSet { \n"); - fprintf(wrl," coord Coordinate { \n"); - fprintf(wrl," point [\n"); + wrl->start_line_set(wrl, 0); for (i = 0; i < 10; i++) { double ss; @@ -6112,13 +5987,12 @@ void *cntx out[0] = (out[0] - s->cent[0]) * 1.01 + s->cent[0]; out[1] = (out[1] - s->cent[1]) * 1.01 + s->cent[1]; out[2] = (out[2] - s->cent[2]) * 1.01 + s->cent[2]; - fprintf(wrl,"%f %f %f,\n",out[1]-s->cent[1], out[2]-s->cent[2], out[0]-s->cent[0]); + + wrl->add_col_vertex(wrl, 0, out, rgb); } - fprintf(wrl," ]\n"); - fprintf(wrl," }\n"); - fprintf(wrl," }\n"); - fprintf(wrl,"} # end shape\n"); + /* Convert them to a point set */ + wrl->make_points(wrl, 0); } #endif /* TEST_LOOKUP */ @@ -6128,11 +6002,7 @@ void *cntx int i, j; double in[3], out[3]; - fprintf(wrl,"\n"); - fprintf(wrl,"Shape {\n"); - fprintf(wrl," geometry IndexedLineSet { \n"); - fprintf(wrl," coord Coordinate { \n"); - fprintf(wrl," point [\n"); + wrl->start_line_set(wrl, 0); for (i = 0; i < NTPTS; i++) { double ss; @@ -6161,37 +6031,23 @@ void *cntx s->nearest(s, out, in); /* Nearest point on gamut surface */ - fprintf(wrl,"%f %f %f,\n",in[1]-s->cent[1], in[2]-s->cent[2], in[0]-s->cent[0]); - fprintf(wrl,"%f %f %f,\n",out[1]-s->cent[1], out[2]-s->cent[2], out[0]-s->cent[0]); + wrl->add_vertex(wrl, 0, in); + wrl->add_vertex(wrl, 0, out); } - fprintf(wrl," ]\n"); - fprintf(wrl," }\n"); - fprintf(wrl," coordIndex [\n"); - - for (i = 0; i < NTPTS; i++) { - fprintf(wrl,"%d, %d, -1,\n", i * 2, i * 2 + 1); - } - fprintf(wrl," ]\n"); - fprintf(wrl," }\n"); - fprintf(wrl,"} # end shape\n"); - + wrl->make_lines(wrl, 0, 2); } #endif /* TEST_NEAREST */ - fprintf(wrl,"\n"); - fprintf(wrl," ] # end of children for world\n"); - fprintf(wrl,"}\n"); - - if (fclose(wrl) != 0) { - fprintf(stderr,"Error closing output file '%s'\n",filename); + if (wrl->flush(wrl)) { + fprintf(stderr,"Error closing output file '%s%s'\n",filename,vrml_ext()); return 2; } + wrl->del(wrl); return 0; } - /* ----------------------------------- */ /* Write to a CGATS .gam file */ /* Return non-zero on error */ @@ -6277,7 +6133,7 @@ char *filename if (!(s->verts[i]->f & GVERT_TRI)) continue; gam->add_set(gam, 0, s->verts[i]->tn, - s->verts[i]->p[0], s->verts[i]->p[1], s->verts[i]->p[2]); + s->verts[i]->p[0], s->verts[i]->p[1], s->verts[i]->p[2]); } gam->add_table(gam, tt_other, 0); /* Start the second table */ @@ -6370,12 +6226,12 @@ char *filename if (cw >= 0 && cb >= 0) { int ok = 1; if (sscanf(gam->t[0].kdata[cw], "%lf %lf %lf", - &s->cs_wp[0], &s->cs_wp[1], &s->cs_wp[2]) != 3) { + &s->cs_wp[0], &s->cs_wp[1], &s->cs_wp[2]) != 3) { ok = 0; } if (sscanf(gam->t[0].kdata[cb], "%lf %lf %lf", - &s->cs_bp[0], &s->cs_bp[1], &s->cs_bp[2]) != 3) { + &s->cs_bp[0], &s->cs_bp[1], &s->cs_bp[2]) != 3) { ok = 0; } @@ -6390,12 +6246,12 @@ char *filename if (gw >= 0 && gb >= 0) { int ok = 1; if (sscanf(gam->t[0].kdata[gw], "%lf %lf %lf", - &s->ga_wp[0], &s->ga_wp[1], &s->ga_wp[2]) != 3) { + &s->ga_wp[0], &s->ga_wp[1], &s->ga_wp[2]) != 3) { ok = 0; } if (sscanf(gam->t[0].kdata[gb], "%lf %lf %lf", - &s->ga_bp[0], &s->ga_bp[1], &s->ga_bp[2]) != 3) { + &s->ga_bp[0], &s->ga_bp[1], &s->ga_bp[2]) != 3) { ok = 0; } @@ -6416,7 +6272,7 @@ char *filename break; if (sscanf(gam->t[0].kdata[kk], "%lf %lf %lf", - &s->cusps[i][0], &s->cusps[i][1], &s->cusps[i][2]) != 3) { + &s->cusps[i][0], &s->cusps[i][1], &s->cusps[i][2]) != 3) { break; } } @@ -6577,7 +6433,7 @@ char *filename || tp2->e[em] != NULL) { fprintf(stderr,".gam file triangle data is not consistent\n"); fprintf(stderr,"tp1->e[%d] = 0x%p, tp2->e[%d]= 0x%p\n",en, - (void *)tp->e[en],em,(void *)tp2->e[em]); + (void *)tp->e[en],em,(void *)tp2->e[em]); return 1; } @@ -6621,7 +6477,6 @@ double in[3] /* Lab in */ double L, a, b; /* Lab values */ double R, g, t; /* Radial value */ double c; /* Chromatic length */ - L = in[0] - s->cent[0]; /* Offset value */ a = in[1] - s->cent[1]; @@ -6685,76 +6540,9 @@ double in[3] /* Radius, longitude, lattitude in */ /* -------------------------------------------------- */ -/* Convert a gamut Lab value to an RGB value for display purposes */ -void -gamut_Lab2RGB(double *out, double *in) { - double L = in[0], a = in[1], b = in[2]; - double x,y,z,fx,fy,fz; - double R, G, B; - - /* Scale so that black is visible */ - L = L * (100 - 40.0)/100.0 + 40.0; - - /* First convert to XYZ using D50 white point */ - if (L > 8.0) { - fy = (L + 16.0)/116.0; - y = pow(fy,3.0); - } else { - y = L/903.2963058; - fy = 7.787036979 * y + 16.0/116.0; - } - - fx = a/500.0 + fy; - if (fx > 24.0/116.0) - x = pow(fx,3.0); - else - x = (fx - 16.0/116.0)/7.787036979; - - fz = fy - b/200.0; - if (fz > 24.0/116.0) - z = pow(fz,3.0); - else - z = (fz - 16.0/116.0)/7.787036979; - - x *= 0.9642; /* Multiply by white point, D50 */ - y *= 1.0; - z *= 0.8249; - - /* Now convert to sRGB values */ - R = x * 3.2410 + y * -1.5374 + z * -0.4986; - G = x * -0.9692 + y * 1.8760 + z * 0.0416; - B = x * 0.0556 + y * -0.2040 + z * 1.0570; - - if (R < 0.0) - R = 0.0; - else if (R > 1.0) - R = 1.0; - - if (G < 0.0) - G = 0.0; - else if (G > 1.0) - G = 1.0; - - if (B < 0.0) - B = 0.0; - else if (B > 1.0) - B = 1.0; - - R = pow(R, 1.0/2.2); - G = pow(G, 1.0/2.2); - B = pow(B, 1.0/2.2); - - out[0] = R; - out[1] = G; - out[2] = B; -} +#if defined(DEBUG_TRIANG) || defined(DEBUG_TRIANG_VRML) - -/* -------------------------------------------------- */ - -#ifdef DEBUG_TRIANG - -/* Write a surface contrsuction diagnostic VRML .wrl file */ +/* Write a surface construction diagnostic .wrl/.x3d/.x3dom file */ static int write_diag_vrml( gamut *s, double vv[3], /* Vertex being added */ @@ -6763,54 +6551,24 @@ tidxs *hixs, /* verticy indexes of hit triangles */ gtri *hl /* Edge hit list (may be NULL) */ ) { char *filename; + int doaxes = 0; int i, j; gtri *tp; /* Triangle pointer */ - FILE *wrl; + vrml *wrl; if (hl) - filename = "diag1.wrl"; /* Triangles hit */ + filename = "diag1"); /* Triangles hit */ else - filename = "diag2.wrl"; /* Triangles formed */ + filename = "diag2"); /* Triangles formed */ - if ((wrl = fopen(filename,"w")) == NULL) { - fprintf(stderr,"Error opening output file '%s'\n",filename); + if ((wrl = new_vrml_vdist(filename, doaxes, vrml_lab, 200.0)) == NULL) { + fprintf(stderr,"Error creating vrml object '%s%s'\n",filename,vrml_ext()); return 2; } - /* Spit out a VRML 2 Object surface of gamut */ - - fprintf(wrl,"#VRML V2.0 utf8\n"); - fprintf(wrl,"\n"); - fprintf(wrl,"# Created by the Argyll CMS\n"); - fprintf(wrl,"Transform {\n"); - fprintf(wrl,"children [\n"); - fprintf(wrl," NavigationInfo {\n"); - fprintf(wrl," type \"EXAMINE\" # It's an object we examine\n"); - fprintf(wrl," } # We'll add our own light\n"); - fprintf(wrl,"\n"); - fprintf(wrl," DirectionalLight {\n"); - fprintf(wrl," direction 0 0 -1 # Light illuminating the scene\n"); - fprintf(wrl," direction 0 -1 0 # Light illuminating the scene\n"); - fprintf(wrl," }\n"); - fprintf(wrl,"\n"); - fprintf(wrl," Viewpoint {\n"); - fprintf(wrl," position 0 0 200 # Position we view from\n"); - fprintf(wrl," }\n"); - fprintf(wrl,"\n"); - - fprintf(wrl," Transform {\n"); - fprintf(wrl," translation 0 0 0\n"); - fprintf(wrl," children [\n"); - fprintf(wrl," Shape { \n"); - fprintf(wrl," geometry IndexedFaceSet {\n"); - fprintf(wrl," ccw FALSE\n"); - fprintf(wrl," convex TRUE\n"); - fprintf(wrl,"\n"); - fprintf(wrl," coord Coordinate { \n"); - fprintf(wrl," point [ # Verticy coordinates\n"); + wrl->start_line_set(wrl, 0); /* Spit out the vertex values, in order. */ - /* Note that a->x, b->y, L->z */ for (i = 0; i < s->nv; i++) { double out[3]; @@ -6819,284 +6577,140 @@ gtri *hl /* Edge hit list (may be NULL) */ out[1] = s->verts[i]->ch[1]; out[2] = s->verts[i]->ch[2]; - fprintf(wrl,"%f %f %f,\n",out[1], out[2], out[0]); + wrl->add_vertex(wrl, 0, out); } - fprintf(wrl," ]\n"); - fprintf(wrl," }\n"); - fprintf(wrl,"\n"); - fprintf(wrl," coordIndex [ # Indexes of poligon Verticies \n"); + /* Create triangles from verticies and set tri color */ tp = s->tris; FOR_ALL_ITEMS(gtri, tp) { - fprintf(wrl,"%d, %d, %d, -1\n", tp->v[0]->n, tp->v[1]->n, tp->v[2]->n); + int ix[3]; + double rgb[3] = { 0.7, 0.7, 0.7 }; + + ix[0] = tp->v[0]->n; + ix[1] = tp->v[1]->n; + ix[2] = tp->v[2]->n; + + wrl->add_col_triangle(wrl, 0, ix, rgb); } END_FOR_ALL_ITEMS(tp); for (i = 0; i < nh; i++) { - fprintf(wrl,"%d, %d, %d, -1\n", hixs[i].tix[0], hixs[i].tix[1], hixs[i].tix[2]); + double rgb[3] = { 0.7, 0.7, 0.7 }; + + if (hixs[i].type == 0) { + rgb[0] = 0.4; rgb[1] = 1.0; rgb[2] = 0.4; /* Green for hit */ + } else if (hixs[i].type == 1) { + rgb[0] = 0.4; rgb[1] = 0.4; rgb[2] = 1.0; /* Blue for extra */ + } else { + rgb[0] = 0.8; rgb[1] = 0.8; rgb[2] = 0.2; /* Yellow for new */ + } + + wrl->add_col_triangle(wrl, 0, hixs[i].tix, rgb); } - fprintf(wrl," ]\n"); - fprintf(wrl,"\n"); - fprintf(wrl," colorPerVertex FALSE\n"); - fprintf(wrl," color Color {\n"); - fprintf(wrl," color [ # RGB colors of each vertex\n"); + wrl->make_triangles_vc(wrl, 0, 0.0); - /* Spit out the colors for each face */ - tp = s->tris; - FOR_ALL_ITEMS(gtri, tp) { - fprintf(wrl,"%f %f %f,\n", 0.7, 0.7, 0.7); - } END_FOR_ALL_ITEMS(tp); - for (i = 0; i < nh; i++) { - if (hixs[i].type == 0) - fprintf(wrl,"%f %f %f,\n", 0.4, 1.0, 0.4); /* Green for hit */ - else if (hixs[i].type == 1) - fprintf(wrl,"%f %f %f,\n", 0.4, 0.4, 1.0); /* Blue for extra */ - else - fprintf(wrl,"%f %f %f,\n", 0.8, 0.8, 0.2); /* Yellow for new */ - } - fprintf(wrl," ] \n"); - fprintf(wrl," }\n"); - fprintf(wrl," } # end IndexedFaceSet\n"); - - fprintf(wrl," appearance Appearance { \n"); - fprintf(wrl," material Material {\n"); - fprintf(wrl," transparency 0.0\n"); - fprintf(wrl," ambientIntensity 0.3\n"); - fprintf(wrl," shininess 0.5\n"); - fprintf(wrl," }\n"); - fprintf(wrl," }\n"); - fprintf(wrl," } # end Shape\n"); - fprintf(wrl," ]\n"); - fprintf(wrl," } # end of transform\n"); + { + double pos[3], rgb[3]; - /* center of gamut */ - fprintf(wrl,"\n"); - fprintf(wrl," Transform {\n"); - fprintf(wrl," translation %f %f %f\n",0.0, 0.0, 0.0); - fprintf(wrl," children [\n"); - fprintf(wrl," Shape { \n"); - fprintf(wrl," geometry Sphere { radius 1.5 }\n"); - fprintf(wrl," appearance Appearance { material Material { diffuseColor %f %f %f } }\n", 1.0, 1.0, 0.0); - fprintf(wrl," } \n"); - fprintf(wrl," ]\n"); - fprintf(wrl," }\n"); - - /* vertex being added */ - fprintf(wrl,"\n"); - fprintf(wrl," Transform {\n"); - fprintf(wrl," translation %f %f %f\n",vv[1], vv[2], vv[0]); - fprintf(wrl," children [\n"); - fprintf(wrl," Shape { \n"); - fprintf(wrl," geometry Sphere { radius 1.5 }\n"); - fprintf(wrl," appearance Appearance { material Material { diffuseColor %f %f %f } }\n", 1.0, 0.0, 0.0); - fprintf(wrl," } \n"); - fprintf(wrl," ]\n"); - fprintf(wrl," }\n"); + /* center of gamut */ + pos[0] = 0.0; pos[1] = 0.0, pos[2] = 0.0; + rgb[0] = 1.0; rgb[1] = 1.0, rgb[2] = 0.0; /* Yellow */ + wrl->add_marker(wrl, pos, rgb, 1.5); + /* vertex being added */ + rgb[0] = 1.0; rgb[1] = 0.0, rgb[2] = 0.0; /* Red */ + wrl->add_marker(wrl, vv, rgb, 1.5); + } /* Verticies for Polygon edges, marked by directional cones */ if (hl != NULL) { - double base[3] = { 0.0, 0.0, 1.0 }; /* Default orientation of cone is b axis */ tp = hl; FOR_ALL_ITEMS(gtri, tp) { - double len; - double loc[3]; - double vec[3]; - double axis[3]; /* Axis to rotate around */ - double rot; /* In radians */ - -//printf("~1 edge vert %d to %d\n",tp->v[0]->n, tp->v[1]->n); -//printf("~1 edge %f %f %f to %f %f %f\n", -//tp->v[0]->ch[0], tp->v[0]->ch[1], tp->v[0]->ch[2], -//tp->v[1]->ch[0], tp->v[1]->ch[1], tp->v[1]->ch[2]); - - icmAdd3(loc, tp->v[1]->ch, tp->v[0]->ch); - icmScale3(loc, loc, 0.5); - icmSub3(vec, tp->v[1]->ch, tp->v[0]->ch); - len = icmNorm3(vec); - - if (len < 1.0) - len = 1.0; - - icmNormalize3(base, base, 1.0); - icmNormalize3(vec, vec, 1.0); - icmCross3(axis, base, vec); - rot = icmDot3(base, vec); -//printf("~1 Axis = %f %f %f\n",axis[0],axis[1],axis[2]); - if (icmNorm3sq(axis) < 1e-10) { /* 0 or 180 degrees */ - double base2[3]; - int mxi = 0; - base2[0] = vec[1]; /* Comute vector in a different direction */ - base2[1] = vec[2]; - base2[2] = vec[0]; - for (j = 1; j < 3; j++) { - if (fabs(base2[j]) > fabs(base2[mxi])) - mxi = j; - } - base2[mxi] = -base2[mxi]; - - icmCross3(axis, base2, vec); - if (icmNorm3sq(axis) < 1e-10) { /* 0 or 180 degrees */ - error("VRML rotate axis still too small"); - } - if (rot < 0.0) - rot = 3.1415926; - else - rot = 0.0; - } else { - rot = acos(rot); -//printf("~1 rotation %f\n",rot); - } - - fprintf(wrl,"\n"); - fprintf(wrl," Transform {\n"); - fprintf(wrl," rotation %f %f %f %f\n",axis[1], axis[2], axis[0], rot); - fprintf(wrl," translation %f %f %f\n",loc[1], loc[2], loc[0]); - fprintf(wrl," children [\n"); - fprintf(wrl," Shape { \n"); - fprintf(wrl," geometry Cone { bottomRadius 0.5 height %f }\n",len); - fprintf(wrl," appearance Appearance { material Material { diffuseColor 0.7 0.0 1.0 } }\n"); - fprintf(wrl," } \n"); - fprintf(wrl," ]\n"); - fprintf(wrl," }\n"); + double rgb[3] = { 0.7, 0.0, 1.0 }; + wrl->add_cone(wrl, tp->v[0]->ch, tp->v[1]->ch, rgb, 0.5); } END_FOR_ALL_ITEMS(tp); } - fprintf(wrl,"\n"); - fprintf(wrl," ] # end of children for world\n"); - fprintf(wrl,"}\n"); - - if (fclose(wrl) != 0) { - fprintf(stderr,"Error closing output file '%s'\n",filename); + if (wrl->flush(wrl) != 0) { + fprintf(stderr,"Error closing output file '%s%s'\n",filename,vrml_ext()); return 2; } return 0; } -#endif /* DEBUG_TRIANG */ +#endif /* DEBUG_TRIANG_VRML */ #ifdef DEBUG_SPLIT_VRML -/* Write a triangle split diagnostic VRML .wrl file */ +/* Write a triangle split diagnostic .wrl/.x3d/.x3dom file */ static int write_split_diag_vrml( gamut *s, gtri **list, /* Triangle list */ int llen /* Number of triangles in the list */ ) { - char *filename; int i, j; - FILE *wrl; - - filename = "diag3.wrl"; /* Triangles split */ + int doaxes = 0; + vrml *wrl; - if ((wrl = fopen(filename,"w")) == NULL) { - fprintf(stderr,"Error opening output file '%s'\n",filename); + if ((wrl = new_vrml("diag3", doaxes, vrml_lab)) == NULL) { + fprintf(stderr,"Error creating %s object '%s%s'\n",vrml_format(),filename,vrml_ext()); return 2; } - /* Spit out a VRML 2 Object surface of gamut */ - - fprintf(wrl,"#VRML V2.0 utf8\n"); - fprintf(wrl,"\n"); - fprintf(wrl,"# Created by the Argyll CMS\n"); - fprintf(wrl,"Transform {\n"); - fprintf(wrl,"children [\n"); - fprintf(wrl," NavigationInfo {\n"); - fprintf(wrl," type \"EXAMINE\" # It's an object we examine\n"); - fprintf(wrl," } # We'll add our own light\n"); - fprintf(wrl,"\n"); - fprintf(wrl," DirectionalLight {\n"); - fprintf(wrl," ambientIntensity 0.3 # Ambient light illuminating the scene\n"); - fprintf(wrl," direction 0 0 -1 # Light illuminating the scene\n"); - fprintf(wrl," direction 0 -1 0 # Light illuminating the scene\n"); - fprintf(wrl," }\n"); - fprintf(wrl,"\n"); - fprintf(wrl," Viewpoint {\n"); - fprintf(wrl," position 0 0 5 # Position we view from\n"); - fprintf(wrl," }\n"); - fprintf(wrl,"\n"); - - fprintf(wrl," Transform {\n"); - fprintf(wrl," translation 0 0 0\n"); - fprintf(wrl," children [\n"); - fprintf(wrl," Shape { \n"); - fprintf(wrl," geometry IndexedFaceSet {\n"); - fprintf(wrl," ccw FALSE\n"); - fprintf(wrl," convex TRUE\n"); - fprintf(wrl," solid FALSE\n"); - fprintf(wrl,"\n"); - fprintf(wrl," coord Coordinate { \n"); - fprintf(wrl," point [ # Verticy coordinates\n"); + wrl->start_line_set(wrl, 0); /* Spit out the vertex values, in order. */ for (i = 0; i < llen; i++) { - fprintf(wrl,"%f %f %f,\n",list[i]->v[0]->sp[0], list[i]->v[0]->sp[1], list[i]->v[0]->sp[2]); - fprintf(wrl,"%f %f %f,\n",list[i]->v[1]->sp[0], list[i]->v[1]->sp[1], list[i]->v[1]->sp[2]); - fprintf(wrl,"%f %f %f,\n",list[i]->v[2]->sp[0], list[i]->v[2]->sp[1], list[i]->v[2]->sp[2]); - } - fprintf(wrl," ]\n"); - fprintf(wrl," }\n"); - fprintf(wrl,"\n"); - fprintf(wrl," coordIndex [ # Indexes of poligon Verticies \n"); + double pos[3]; - for (i = 0; i < llen; i++) { - fprintf(wrl,"%d, %d, %d, -1\n", i * 3 + 0, i * 3 + 1, i * 3 + 2); + for (j = 0; j < 3; j++) { + + pos[0] = 100.0 * list[i]->v[j]->sp[0]; + pos[1] = 100.0 * list[i]->v[j]->sp[1]; + pos[2] = 100.0 * list[i]->v[j]->sp[2]; + + wrl->add_vertex(wrl, 0, pos); + } } - fprintf(wrl," ]\n"); - fprintf(wrl,"\n"); - fprintf(wrl," colorPerVertex FALSE\n"); - fprintf(wrl," color Color {\n"); - fprintf(wrl," color [ # RGB colors of each vertex\n"); - /* Spit out the colors for each face */ + /* Triangle faces and colors */ for (i = 0; i < llen; i++) { + int ix[3]; + double rgb[3]; + + ix[0] = i * 3 + 0; + ix[1] = i * 3 + 1; + ix[2] = i * 3 + 2; + if (list[i]->bsort == 1) { /* Positive */ - fprintf(wrl,"%f %f %f,\n", 1.0, 0.3, 0.3); /* Red */ + rgb[0]= 1.0; rgb[1] = 0.3; rgb[2] = 0.3; /* Red */ } else if (list[i]->bsort == 2) { /* Negative */ - fprintf(wrl,"%f %f %f,\n", 0.3, 1.0, 0.3); /* Green */ + rgb[0]= 0.3; rgb[1] = 1.0; rgb[2] = 0.3; /* Green */ } else if (list[i]->bsort == 3) { /* Both */ - fprintf(wrl,"%f %f %f,\n", 1.0, 1.0, 0.3); /* Yellow */ + rgb[0]= 1.0; rgb[1] = 1.0; rgb[2] = 0.3; /* Yellow */ } else { /* Neither */ - fprintf(wrl,"%f %f %f,\n", 0.3, 0.3, 1.0); /* Blue */ - } + rgb[0]= 0.3; rgb[1] = 0.3; rgb[2] = 1.0; /* Blue */ + } + wrl->add_col_triangle(wrl, 0, ix, rgb); } - fprintf(wrl," ] \n"); - fprintf(wrl," }\n"); - fprintf(wrl," } # end IndexedFaceSet\n"); - - fprintf(wrl," appearance Appearance { \n"); - fprintf(wrl," material Material {\n"); - fprintf(wrl," transparency 0.0\n"); - fprintf(wrl," ambientIntensity 0.3\n"); - fprintf(wrl," shininess 0.5\n"); - fprintf(wrl," }\n"); - fprintf(wrl," }\n"); - fprintf(wrl," } # end Shape\n"); - fprintf(wrl," ]\n"); - fprintf(wrl," } # end of transform\n"); + + wrl->make_triangles_vc(wrl, 0, 0.0); /* center of gamut */ - fprintf(wrl,"\n"); - fprintf(wrl," Transform {\n"); - fprintf(wrl," translation %f %f %f\n",0.0, 0.0, 0.0); - fprintf(wrl," children [\n"); - fprintf(wrl," Shape { \n"); - fprintf(wrl," geometry Sphere { radius 0.05 }\n"); - fprintf(wrl," appearance Appearance { material Material { diffuseColor %f %f %f } }\n", 1.0, 1.0, 0.0); - fprintf(wrl," } \n"); - fprintf(wrl," ]\n"); - fprintf(wrl," }\n"); - - fprintf(wrl,"\n"); - fprintf(wrl," ] # end of children for world\n"); - fprintf(wrl,"}\n"); - - if (fclose(wrl) != 0) { - fprintf(stderr,"Error closing output file '%s'\n",filename); + { + double pos[3] = { 0.0, 0.0, 0.0 }; + double rgb[3] = { 1.0, 1.0, 0.0 }; /* Yellow */ + + wrl->add_marker(wrl, pos, rgb, 5.0); + } + + if (wrl->flush(wrl) != 0) { + fprintf(stderr,"Error closing output file '%s%s'\n",filename,vrml_ext()); return 2; } + wrl->del(wrl); return 0; } diff --git a/gamut/gamut.h b/gamut/gamut.h index 8f4645c..467852f 100644 --- a/gamut/gamut.h +++ b/gamut/gamut.h @@ -344,8 +344,9 @@ struct _gamut { int (*vector_isect)(struct _gamut *s, double *p1, double *p2, double *min, double *max, double *mint, double *maxt, gtri **mntri, gtri **mxtri); - /* Compute the intersection of the vector p1->p2 with */ - /* the gamut surface. min is the intersection in the p1 direction, */ + /* Compute the intersection of the (extended to infinity) vector */ + /* p1->p2 with the gamut surface. */ + /* min is the intersection in the p1 direction, */ /* max is intersection in the p2 direction. mint and maxt are */ /* the parameter values at the two intersection points, a value of 0 */ /* being at p1 and 1 being at p2. mintri and maxtri return the */ @@ -384,11 +385,11 @@ struct _gamut { /* Following return nz on error: */ int (*write_vrml)(struct _gamut *s, char *filename, - int doaxes, int docusps); /* Write to a VRML .wrl file */ + int doaxes, int docusps); /* Write to a VRML .wrl/.x3d file */ int (*write_gam)(struct _gamut *s, char *filename); /* Write to a CGATS .gam file */ int (*read_gam)(struct _gamut *s, char *filename); /* Read from a CGATS .gam file */ - int (*write_trans_vrml)(struct _gamut *s, char *filename, /* Write transformed VRML .wrl */ + int (*write_trans_vrml)(struct _gamut *s, char *filename, /* Write transformed VRML/X3D .wrl */ int doaxes, int docusps, void (*transform)(void *cntx, double out[3], double in[3]), /* with xform */ void *cntx); diff --git a/gamut/maptest.c b/gamut/maptest.c index 5fe5c42..3a33453 100644 --- a/gamut/maptest.c +++ b/gamut/maptest.c @@ -32,6 +32,8 @@ #include "gamut.h" #include "rspl.h" #include "gammap.h" +#include "vrml.h" +#include "ui.h" void usage(void) { fprintf(stderr,"Map bteween two gamuts, Version %s\n",ARGYLL_VERSION_STR); @@ -55,12 +57,15 @@ main(int argc, char *argv[]) { int verb = 0; gammap *map; /* Regular split gamut mapping */ icxGMappingIntent gmi; + char gammapwrl[30] = "gammap"; /* Diagnostic file name */ gamut *gin, *gout; /* Input and Output gamuts */ gamut *gimg = NULL; /* Optional image gamut */ error_program = argv[0]; + strcat(gammapwrl, vrml_ext()); + if (argc < 3) usage(); @@ -203,7 +208,7 @@ main(int argc, char *argv[]) { 17, /* rspl resolution of 17 */ NULL, /* No input range override */ NULL, - "gammap.wrl" /* Diagnostic plot */ + gammapwrl /* Diagnostic plot */ ); if (map == NULL) { diff --git a/gamut/nearsmth.c b/gamut/nearsmth.c index a13442d..c0bd2be 100644 --- a/gamut/nearsmth.c +++ b/gamut/nearsmth.c @@ -66,7 +66,7 @@ #undef PLOT_EVECTS /* [Und] Create VRML of error correction vectors */ #undef VERB /* [Und] [0] If <= 1, print progress headings */ /* if > 1, print information about everything */ -#undef SHOW_NEIGB_WEIGHTS /* [Und] Show the weighting for each point of neighbours */ +#undef SHOW_NEIGB_WEIGHTS /* [Und] Show the weighting for each point of neighbours in turn */ #undef DIAG_POINTS /* [Und] Short circuite mapping and show vectors of various */ /* intermediate points (see #ifdef DIAG_POINTS) */ @@ -81,8 +81,8 @@ #define VECSMOOTHING /* [Def] Enable vector smoothing */ #define VECADJPASSES 3 /* [3] Adjust vectors after smoothing to be on dest gamut */ #define RSPLPASSES 4 /* [4] Number of rspl adjustment passes */ -#define RSPLSCALE 1.8 /* [1.8] Offset within gamut for rspl smoothingto aim for */ -#define SHRINK 5.0 /* Shrunk destination evect surface factor */ +#define RSPLSCALE 1.8 /* [1.8] Offset within gamut for rspl smoothing to aim for */ +#define SHRINK 5.0 /* [5.0] Shrunk destination evect surface factor */ #define CYLIN_SUBVEC /* [Def] Make sub-vectors always cylindrical direction */ #define SUBVEC_SMOOTHING /* [Def] Smooth the sub-vectors */ @@ -96,6 +96,8 @@ #undef LINEAR_HUE_SUM /* Make delta^2 = (sqrt(l^2 + c^2) + h)^2 */ +#undef DEBUG_POWELL_FAILS /* [Und] On a powell fail, re-run it with debug on */ + /* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */ #if defined(VERB) # define VA(xxxx) printf xxxx @@ -313,14 +315,14 @@ struct _smthopt { gamut *sgam; /* Source colorspace gamut */ /* Cusp alignment mapping */ - /* 0 = src, 1 = dst, then cusp then value(s) */ - double cusps[2][9][3]; /* raw cusp values - red .. magenta, white [6], black [7] & grey [8] */ + /* [2] 0 = src, 1 = dst, then cusp then value(s) */ + double cusps[2][9][3]; /* raw cusp values - R Y G C B M, white [6], black [7] & grey [8] */ double rot[2][3][4]; /* Rotation to align to black/white center */ double irot[2][3][4]; /* Inverse rotation */ double cusp_lab[2][9][3]; /* Cusp + B&W + grey rotated Lab value */ double cusp_lch[2][6][3]; /* Cusp LCH value */ double cusp_pe[2][6][4]; /* L direction plane equations per segment */ - double cusp_bc[2][6][2][3][3]; /* light/dark to/from 3x3 baricentic transform matrix */ + double cusp_bc[2][6][2][3][3]; /* [light/dark][Hex][to/from] 3x3 baricentic transform matrix */ /* Inversion support */ double tv[3]; @@ -382,9 +384,9 @@ double *_dv if (p->swap) { /* This is actually a point on the real source gamut, so */ - /* convert to cusp mapped rotated, elevated source gamut value */ + /* convert to cusp mapped rotated source gamut value */ comp_ce(s, ddv, ddv, &p->wt); -// printf("~1 after rot & elevate got %f %f %f\n",ddv[0],ddv[1],ddv[2]); +//printf("~1 after cusp rot got %f %f %f\n",ddv[0],ddv[1],ddv[2]); } #ifdef NEVER @@ -840,10 +842,11 @@ double out[3], double in[3], gammapweights *wt /* If NULL, assume 100% */ ) { - double cw_l = 1.0; + double cw_l = 1.0; /* Cusp adapation weighting */ double cw_c = 1.0; double cw_h = 1.0; - double ccx = 1.0; + double ctw = 1.0; /* Twist power */ + double ccx = 1.0; /* Expansion ratio */ out[0] = in[0]; out[1] = in[1]; @@ -853,24 +856,27 @@ gammapweights *wt /* If NULL, assume 100% */ cw_l = wt->c.w.l; cw_c = wt->c.w.c; cw_h = wt->c.w.h; + ctw = wt->c.tw; ccx = wt->c.cx; } /* Compute source changes due to any cusp mapping */ - if (s->docusp && (cw_l > 0.0 || cw_c > 0.0 || cw_h > 0.0)) { + if (s->docusp && (cw_l > 0.0 || cw_c > 0.0 || cw_h > 0.0 || ccx > 0.0)) { double lab[3], lch[3]; /* Normalized source values */ - double bb[3]; /* Baricentric coords */ + double bb[3]; /* Baricentric coords: cusp0, cusp1, w/b weight. */ double olch[3]; /* Destination transformed LCh source value */ double mlab[3], mlch[3]; /* Fully mapped value */ int c0, c1; /* Cusp indexes */ int ld; /* light/dark index */ + double tww, tpw; /* Base twist weighting, twist power weightign */ -//printf("\n~1 in = %f %f %f, ccx = %f\n",in[0],in[1],in[2],ccx); +//printf("\n~1 in = %f %f %f, cw_l %f, cw_c %f cw_h %f ctw %f ccx %f\n",in[0],in[1],in[2], cw_l, cw_c, cw_h, ctw, ccx); - /* Compute src cusp normalized LCh */ + /* Compute src white/black aligned input Lab & LCh */ icmMul3By3x4(lab, s->rot[0], in); icmLab2LCh(lch, lab); -//printf("~1 lab = %f %f %f, lch = %f %f %f\n",lab[0],lab[1],lab[2],lch[0],lch[1],lch[2]); +//printf("~1 aligned lab = %f %f %f\n",lab[0],lab[1],lab[2]); +//printf("~1 aligned lch = %f %f %f\n",lch[0],lch[1],lch[2]); /* Locate the source cusps that this point lies between */ for (c0 = 0; c0 < 6; c0++) { @@ -900,34 +906,59 @@ gammapweights *wt /* If NULL, assume 100% */ /* Compute baricentric for input point in simplex */ icmSub3(bb, lab, s->cusp_lab[0][8]); icmMulBy3x3(bb, s->cusp_bc[0][c0][ld], bb); +//printf("~1 bb %f %f %f sum %f\n",bb[0],bb[1],bb[2], bb[0] + bb[1]); + + /* bb[0] + bb[1] is close to C value */ + tww = fabs(bb[0] + bb[1]); + if (tww > 1.0) + tww = 1.0; + + ccx = 1.0 + ((ccx - 1.0) * tww); /* Scale expansion by C anyway */ -//printf("~1 bb %f %f %f\n",bb[0],bb[1],bb[2]); + /* Twist power weighting */ + if (ctw <= 0.0) + tpw = 1.0; /* Linear cusp alignmen mapping */ + else + tpw = pow(tww, ctw); /* Less mapping near neutral, full at cusps */ + +//printf("~1 ccx %f, tww %f, tpw %f\n", ccx, tww, tpw); + + /* Scale size of mapping down near neutral with higher twist power */ + cw_l *= tpw; + cw_h *= tpw; + cw_c *= tpw; /* Then compute value for output from baricentric */ icmMulBy3x3(mlab, s->cusp_bc[1][c0][ld], bb); icmAdd3(mlab, mlab, s->cusp_lab[1][8]); icmLab2LCh(mlch, mlab); -//printf("~1 fully cusp mapped point %f %f %f\n", mlab[0], mlab[1], mlab[2]); +//printf("~1 full mapped point lch %f %f %f\n", mlch[0], mlch[1], mlch[2]); - /* Compute the unchanged source in dest space */ + /* Compute the unchanged source in dest black/white aligned space */ icmMul3By3x4(olch, s->rot[1], in); icmLab2LCh(olch, olch); +//printf("~1 un mappedpoint lch %f %f %f\n", olch[0], olch[1], olch[2]); + /* Then compute weighted output */ mlch[0] = cw_l * mlch[0] + (1.0 - cw_l) * olch[0]; mlch[1] = cw_c * mlch[1] + (1.0 - cw_c) * olch[1]; - mlch[1] *= ccx; /* Chroma expansion */ - - if (lch[2] > mlch[2] && (lch[2] - mlch[2]) > 180.0) - mlch[2] += 360.0; - else if (mlch[2] > lch[2] && (mlch[2] - lch[2]) > 180.0) - lch[2] += 360.0; - mlch[2] = cw_c * mlch[2] + (1.0 - cw_c) * lch[2]; + if (fabs(olch[2] - mlch[2]) > 180.0) { /* Put them on the same side */ + if (olch[2] < mlch[2]) + olch[2] += 360.0; + else + mlch[2] += 360.0; + } + mlch[2] = cw_c * mlch[2] + (1.0 - cw_c) * olch[2]; if (mlch[2] >= 360.0) mlch[2] -= 360.0; -//printf("~1 weighted cusp mapped point %f %f %f\n", mlch[0], mlch[1], mlch[2]); + mlch[1] *= ccx; /* Add chroma expansion */ + +//printf("~1 weighted cusp mapped lch %f %f %f\n", mlch[0], mlch[1], mlch[2]); + + /* Align to destination white/black axis */ icmLCh2Lab(mlch, mlch); icmMul3By3x4(out, s->irot[1], mlch); //printf("~1 returning %f %f %f\n", out[0], out[1], out[2]); @@ -970,7 +1001,7 @@ double in[3] /* Non-cusp mapped source value */ return ll; } -/* Return a value suitable for blending between the wl, gl and bl L dominance values */ +/* Return a value suitable for blending between the wl, gl and bl L dominance values. */ /* The value is a linear blend value, 0.0 at cusp local grey, 1.0 at white L value */ /* and -1.0 at black L value. */ static double comp_lvc( @@ -1114,6 +1145,7 @@ gammapweights *src NSCOPY(c.w.l); NSCOPY(c.w.c); NSCOPY(c.w.h); + NSCOPY(c.tw); NSCOPY(c.cx); NSCOPY(l.o); @@ -1154,6 +1186,7 @@ gammapweights *src2, double wgt2 NSBLEND(c.w.l); NSBLEND(c.w.c); NSBLEND(c.w.h); + NSBLEND(c.tw); NSBLEND(c.cx); NSBLEND(l.o); @@ -1183,7 +1216,7 @@ gammapweights *src2, double wgt2 } /* Expand the compact form of weights into the explicit form. */ -/* The explicit form is light and dark of red, yellow, green, cyan, blue, magenta & neutral*/ +/* The explicit form is light and dark of red, yellow, green, cyan, blue, magenta & neutral */ /* Return nz on error */ int expand_weights(gammapweights out[14], gammapweights *in) { int i, j; @@ -1299,7 +1332,7 @@ int expand_weights(gammapweights out[14], gammapweights *in) { return 0; } -/* Tweak weights acording to extra cmy cusp flags or rel override */ +/* Tweak weights acording to extra cmy cusp mapping flags or rel override */ void tweak_weights(gammapweights out[14], int dst_cmymap, int rel_oride) { int i; @@ -1311,6 +1344,7 @@ void tweak_weights(gammapweights out[14], int dst_cmymap, int rel_oride) { out[i].c.w.l = 1.0; /* 100% mapping */ out[i].c.w.c = 1.0; out[i].c.w.h = 1.0; + out[i].c.tw = 1.0; /* Moderate twist */ out[i].c.cx = 1.0; /* No expansion */ } @@ -1364,7 +1398,7 @@ static void comp_iweight(iweight *iw, double o, double h, double l) { } /* Given a point location, return the interpolated weighting values at that point. */ -/* (Typically non-cusp mapped source location assumed, and source gamut cusps used) */ +/* (Typically non-cusp mapped source location assumed, and source gamut cusps used.) */ /* (Assume init_ce() has been called to setip smthopt!) */ void interp_xweights(gamut *gam, gammapweights *out, double pos[3], gammapweights in[14], smthopt *s, int cvec) { @@ -1787,13 +1821,18 @@ datao map_oh if (si_gam != sc_gam) { if ((sci_gam = new_gamut(0.0, 0, 0)) == NULL) { fprintf(stderr,"gamut map: new_gamut failed\n"); + free_nearsmth(smp, nmpts); *npp = 0; return NULL; } sci_gam->intersect(sci_gam, sc_gam, si_gam); #ifdef SAVE_VRMLS - printf("###### gamut/nearsmth.c: writing diagnostic sci_gam.wrl and di_gam.wrl\n"); - sci_gam->write_vrml(sci_gam, "sci_gam.wrl", 1, 0); + { + char sci_gam_name[40] = "sci_gam"; + strcat(sci_gam_name, vrml_ext()); + printf("###### gamut/nearsmth.c: writing diagnostic sci_gam%s and di_gam%s\n",vrml_ext(),vrml_ext()); + sci_gam->write_vrml(sci_gam, sci_gam_name, 1, 0); + } #endif } @@ -1803,6 +1842,7 @@ datao map_oh fprintf(stderr,"gamut map: new_gamut failed\n"); if (si_gam != sc_gam) sci_gam->del(sci_gam); + free_nearsmth(smp, nmpts); *npp = 0; return NULL; } @@ -1813,6 +1853,7 @@ datao map_oh di_gam->del(di_gam); if (si_gam != sc_gam) sci_gam->del(sci_gam); + free_nearsmth(smp, nmpts); *npp = 0; return NULL; } @@ -1828,7 +1869,11 @@ datao map_oh } #ifdef SAVE_VRMLS - di_gam->write_vrml(di_gam, "di_gam.wrl", 1, 0); + { + char di_gam_name[30] = "di_gam"; + strcat(di_gam_name, vrml_ext()); + di_gam->write_vrml(di_gam, di_gam_name, 1, 0); + } #endif /* Create a list of the mapping guide points, setup for a null mapping */ @@ -1868,6 +1913,7 @@ datao map_oh smp[i].dv[2] = smp[i].sv[2] = smp[i]._sv[2] = imv[2]; smp[i].sgam = sci_gam; smp[i].dgam = sci_gam; + smp[i].mapres = mapres; VB(("In Src %d = %f %f %f\n",i,smp[i].sv[0],smp[i].sv[1],smp[i].sv[2])); @@ -1952,7 +1998,6 @@ datao map_oh imv[2] = smp[i]._sv[2]; /* Compute the cusp rotated version of the cspace/image points */ - /* Note that we're not elevating yet! */ comp_ce(&opts, rimv, imv, &smp[i].wt); VB(("%f de, ix %d: cusp mapped %f %f %f -> %f %f %f\n", icmNorm33(rimv,imv), i, imv[0], imv[1], imv[2], rimv[0], rimv[1], rimv[2])); rimr = icmNorm33(rimv, sci_gam->cent); @@ -1976,7 +2021,7 @@ datao map_oh smp[i].dr = icmNorm33(smp[i].dv, smp[i].dgam->cent); /* Re-lookup radialy equivalent point on destination gamut, */ - /* to match rotated/elevated source */ + /* to match rotated source */ smp[i].drr = smp[i].dgam->radial(smp[i].dgam, smp[i].drv, smp[i].sv); /* A default average neighbour value */ @@ -2086,7 +2131,7 @@ datao map_oh for (i = 0; i < nmpts; i++) { double x, y, z, tv[3]; - /* compute rotated location */ + /* compute tangent alignment rotated location */ icmNormalize33(tt, smp[i].sv, smp[ix].sgam->cent, 1.0); icmMul3By3x4(tv, mm, tt); icmMulBy2x2(&tv[1], m2, &tv[1]); @@ -2203,8 +2248,8 @@ datao map_oh for (i = 0; i < nmpts; i++) { double maxw; - if ((wrl = new_vrml("weights.wrl", 1)) == NULL) - error("New vrml failed"); + if ((wrl = new_vrml("weights", 1, vrml_lab)) == NULL) + error("New %s failed for '%s%s'",vrml_format(),"weights",vrml_ext()); maxw = 0.0; for (j = 0; j < smp[i].nnd; j++) { @@ -2219,7 +2264,7 @@ datao map_oh wrl->make_lines(wrl, 0, 2); wrl->del(wrl); - printf("Waiting for input after writing 'weights.wrl' for point %d:\n",i); + printf("Waiting for input after writing 'weights%s' for point %d:\n",vrml_ext(),i); getchar(); } } @@ -2296,8 +2341,8 @@ datao map_oh nv[1] = iv[1] + d_rand(-20.0, 20.0); } if (brv == 1e38) { /* We failed to get a result */ - VB(("multiple powells failed to get a result\n")); -#ifdef NEVER + fprintf(stderr, "multiple powells failed to get a result (1)\n"); +#ifdef DEBUG_POWELL_FAILS /* Optimise the point with debug on */ opts.debug = 1; icmMul3By3x4(iv, smp[i].m2d, smp[i].dv); @@ -2305,12 +2350,12 @@ datao map_oh nv[1] = iv[1] = iv[2]; powell(NULL, 2, nv, s, 0.01, 1000, optfunc1, (void *)(&opts), NULL, NULL); #endif - free_nearsmth(smp, nmpts); - *npp = 0; if (si_gam != sc_gam) sci_gam->del(sci_gam); if (di_gam != sci_gam && di_gam != sci_gam) di_gam->del(di_gam); + free_nearsmth(smp, nmpts); + *npp = 0; return NULL; } @@ -2401,8 +2446,8 @@ datao map_oh nv[1] = iv[1] + d_rand(-20.0, 20.0); } if (brv == 1e38) { /* We failed to get a result */ - VB(("multiple powells failed to get a result\n")); -#ifdef NEVER + fprintf(stderr, "multiple powells failed to get a result (2)\n"); +#ifdef DEBUG_POWELL_FAILS /* Optimise the point with debug on */ opts.debug = 1; icmMul3By3x4(iv, smp[i].m2d, smp[i].dv); @@ -2410,12 +2455,12 @@ datao map_oh nv[1] = iv[1] = iv[2]; powell(NULL, 2, nv, s, 0.01, 1000, optfunc2, (void *)(&opts), NULL, NULL); #endif - free_nearsmth(smp, nmpts); - *npp = 0; if (si_gam != sc_gam) sci_gam->del(sci_gam); if (di_gam != sci_gam && di_gam != sci_gam) di_gam->del(di_gam); + free_nearsmth(smp, nmpts); + *npp = 0; return NULL; } @@ -2481,12 +2526,13 @@ datao map_oh if ((shgam = new_gamut(di_gam->getsres(di_gam), di_gam->getisjab(di_gam), di_gam->getisrast(di_gam))) == NULL) { - free_nearsmth(smp, nmpts); - *npp = 0; + fprintf(stderr, "new_gamut failed\n"); if (si_gam != sc_gam) sci_gam->del(sci_gam); if (di_gam != sci_gam && di_gam != sci_gam) di_gam->del(di_gam); + free_nearsmth(smp, nmpts); + *npp = 0; return NULL; } @@ -2521,13 +2567,13 @@ datao map_oh if ((gpnts = (cow *)malloc(nmpts * sizeof(cow))) == NULL) { fprintf(stderr,"gamut map: Malloc of near smooth points failed\n"); - free_nearsmth(smp, nmpts); - *npp = 0; shgam->del(shgam); if (si_gam != sc_gam) sci_gam->del(sci_gam); if (di_gam != sci_gam && di_gam != sci_gam) di_gam->del(di_gam); + free_nearsmth(smp, nmpts); + *npp = 0; return NULL; } @@ -2569,14 +2615,22 @@ datao map_oh nv[1] = iv[1] + d_rand(-20.0, 20.0); } if (brv == 1e38) { /* We failed to get a result */ - VB(("multiple powells failed to get a result\n")); + fprintf(stderr, "multiple powells failed to get a result (3)\n"); +#ifdef DEBUG_POWELL_FAILS + /* Optimise the point with debug on */ + opts.debug = 1; + icmMul3By3x4(iv, smp[i].m2d, smp[i].dv); + nv[0] = iv[0] = iv[1]; + nv[1] = iv[1] = iv[2]; + powell(NULL, 2, nv, s, 0.01, 1000, optfunc1a, (void *)(&opts), NULL, NULL); +#endif shgam->del(shgam); /* Done with this */ - free_nearsmth(smp, nmpts); - *npp = 0; if (si_gam != sc_gam) sci_gam->del(sci_gam); if (di_gam != sci_gam && di_gam != sci_gam) di_gam->del(di_gam); + free_nearsmth(smp, nmpts); + *npp = 0; return NULL; } @@ -2628,12 +2682,14 @@ datao map_oh double green[3] = { 0.0, 1.0, 0.0 }; double tmp[3]; co cp; + #ifdef PLOT_AXES doaxes = 1; #endif - printf("###### gamut/nearsmth.c: writing diagnostic evects.wrl\n"); - wrl = new_vrml("evects.wrl", doaxes); + printf("###### gamut/nearsmth.c: writing diagnostic evects%s\n",vrml_ext()); + if ((wrl = new_vrml("evects", doaxes, vrml_lab)) == NULL) + error("new_vrml failed for '%s%s'","evects",vrml_ext()); wrl->make_gamut_surface_2(wrl, di_gam, 0.6, 0, cc); cc[0] = -1.0; wrl->make_gamut_surface(wrl, shgam, 0.2, cc); @@ -2890,14 +2946,14 @@ datao map_oh if ((gpnts = (cow *)malloc(nmpts * sizeof(cow))) == NULL) { fprintf(stderr,"gamut map: Malloc of near smooth points failed\n"); - free_nearsmth(smp, nmpts); - *npp = 0; if (evectmap != NULL) evectmap->del(evectmap); if (si_gam != sc_gam) sci_gam->del(sci_gam); if (di_gam != sci_gam && di_gam != sci_gam) di_gam->del(di_gam); + free_nearsmth(smp, nmpts); + *npp = 0; return NULL; } @@ -3131,7 +3187,7 @@ datao map_oh VB(("Final guide points:\n")); - /* Restore the actual non elevated and cust rotated source point */ + /* Restore the actual non cusp rotated source point */ for (i = 0; i < nmpts; i++) { VB(("Src %d = %f %f %f\n",i,smp[i].sv[0],smp[i].sv[1],smp[i].sv[2])); @@ -3152,7 +3208,10 @@ datao map_oh /* Create sub-surface points. */ for (i = 0; i < nmpts; i++) { - /* Create a sub-surface mapping point too. */ + /* Create sub-surface mapping points too. We control the degree */ + /* of knee with a extrapolated destination point dv2, where */ + /* the degree of extrapolation is inversly related to the sharpness of the knee. */ + /* A third point maps 1:1 with a weight that is related the sharpness. */ /* Note that not every mapping point has a sub-surface point, */ /* and that the gflag and vflag will be nz if it does. */ /* We're assuming here that the dv is close to being on the */ @@ -3160,7 +3219,7 @@ datao map_oh /* close to 1.0 at the intended destination gamut. */ { double mv[3], ml, nv[3]; /* Mapping vector & length, noralized mv */ - double minv[3], maxv[3]; + double minv[3], maxv[3]; /* (Not used) */ double mint, maxt; gtri *mintri, *maxtri; @@ -3174,7 +3233,9 @@ datao map_oh //if (PFCOND) printf("~1 mapping %d = %f %f %f -> %f %f %f\n", i, smp[i].sv[0],smp[i].sv[1],smp[i].sv[2],smp[i].dv[0],smp[i].dv[1],smp[i].dv[2]); //if (PFCOND) printf("~1 vector %f %f %f, len %f\n", mv[0], mv[1], mv[2],ml); + /* Compute actual depth of ray into destination gamut */ + /* to determine if this is expansion or contraction. */ if (di_gam->vector_isect(di_gam, smp[i].sv, smp[i].dv, minv, maxv, &mint, &maxt, &mintri, &maxtri) != 0) { double wp[3], bp[3]; /* Gamut white and black points */ @@ -3190,22 +3251,41 @@ datao map_oh /* a sanity check on the available depth. */ if (d_gam->getwb(d_gam, NULL, NULL, NULL, wp, dst_kbp ? NULL : bp, dst_kbp ? bp : NULL) == 0) { if (icmLineLineClosest(napoint, NULL, &p1, NULL, bp, wp, - smp[i].sv,smp[i].dv) == 0) { - /* Clip it */ - if (p1 < 0.0) - icmCpy3(napoint, bp); - else if (p1 > 1.0) - icmCpy3(napoint, wp); + smp[i].sv, smp[i].dv) == 0) { + double nalev[3]; + icmCpy3(nalev, napoint); //if (PFCOND) printf("~1 neutral axis point = %f %f %f\n", napoint[0], napoint[1], napoint[2]); /* Compute a normalized available depth from distance */ /* to closest to neautral axis point */ if ((mint > 1e-8 && maxt > -1e-8) /* G. & V. Compression */ || ((mint < -1e-8 && maxt > -1e-8) /* G. Exp & V. comp. */ - && (fabs(mint) < (fabs(maxt) - 1e-8)))) + && (fabs(mint) < (fabs(maxt) - 1e-8)))) { + /* Compression */ + + /* Moderate the neutral axis point to be half way */ + /* between sv->dv direction, and horizontal. */ + nalev[0] = smp[i].dv[0]; + icmBlend3(napoint, napoint, nalev, 0.5); + /* Clip it to be between black and white point */ + if (napoint[0] < bp[0]) + icmCpy3(napoint, bp); + else if (napoint[0] > wp[0]) + icmCpy3(napoint, wp); adepth2 = icmNorm33(napoint, smp[i].dv); - else /* Expansion */ + } else { + /* Expansion */ + /* Moderate the neutral axis point to be half way */ + /* between sv->dv direction, and horizontal. */ + nalev[0] = smp[i].sv[0]; + icmBlend3(napoint, napoint, nalev, 0.5); + /* Clip it to be between black and white point */ + if (napoint[0] < bp[0]) + icmCpy3(napoint, bp); + else if (napoint[0] > wp[0]) + icmCpy3(napoint, wp); adepth2 = icmNorm33(napoint, smp[i].sv); + } } #ifdef VERB else { @@ -3232,10 +3312,11 @@ datao map_oh if (fabs(mint - 1.0) < fabs(maxt) - 1.0 && smp[i].dgam->radial(smp[i].dgam, NULL, smp[i].dv) < smp[i].sgam->radial(smp[i].sgam, NULL, smp[i].dv)) { + double sgamcknf = gamcknf * 0.6; /* [0.7] Scale to limit overshoot */ //if (PFCOND) printf("~1 point is gamut comp & vect comp.\n"); //if (PFCOND) printf("~1 point is gamut comp & vect comp. mint %f maxt %f\n",mint,maxt); - adepth1 = ml * 0.5 * (maxt + mint - 2.0); + adepth1 = ml * 0.5 * (maxt + mint - 2.0); /* Average depth */ #ifdef CYLIN_SUBVEC adepth = adepth2; /* Always cylindrical depth */ #else @@ -3243,36 +3324,45 @@ datao map_oh #endif if (adepth1 < (0.5 * adepth2)) continue; + //if (PFCOND) printf("~1 dir adepth %f, radial adapeth %f\n",adepth1,adepth2); - adepth *= 0.9; /* Can't use 100% */ + adepth *= 0.9; /* Can't use 100% */ smp[i].gflag = 1; /* Gamut compression and */ smp[i].vflag = 1; /* vector compression */ /* Compute available depth and knee factor adjusted sub-vector */ icmCpy3(smp[i].sv2, smp[i].dv); /* Sub source is guide dest */ - ml *= (1.0 - gamcknf); /* Scale by knee */ - adepth *= (1.0 - gamcknf); + ml *= (1.0 - sgamcknf); /* Scale by knee */ + adepth *= (1.0 - sgamcknf); sml = ml < adepth ? ml : adepth; /* Smaller of two */ //if (PFCOND) printf("~1 adjusted subvec len %f\n",sml); icmNormalize3(mv2, mv, sml); /* Full sub-surf disp. == no knee */ icmAdd3(mv2, smp[i].sv2, mv2); /* Knee adjusted destination */ //if (PFCOND) printf("~1 before blend sv2 %f %f %f, dv2 %f %f %f\n", smp[i].sv2[0], smp[i].sv2[1], smp[i].sv2[2], mv2[0], mv2[1], mv2[2]); - /* Blend towards n.axis as length of sub vector approaches */ - /* distance to neutral axis. */ + /* Compute point at sml depth from sv2 towards napoint */ icmSub3(natarg, napoint, smp[i].sv2); icmNormalize3(natarg, natarg, sml); /* Sub vector towards n.axis */ icmAdd3(natarg, natarg, smp[i].sv2); /* n.axis target */ #ifdef CYLIN_SUBVEC icmCpy3(mv2, natarg); /* cylindrical direction vector */ #else + /* Blend towards n.axis as length of sub vector approaches */ + /* distance to neutral axis. */ icmBlend3(mv2, mv2, natarg, sml/adepth2); #endif /* CYLIN_SUBVEC */ //if (PFCOND) printf("~1 after blend sv2 %f %f %f, dv2 %f %f %f\n", smp[i].sv2[0], smp[i].sv2[1], smp[i].sv2[2], mv2[0], mv2[1], mv2[2]); icmCpy3(smp[i].dv2, mv2); /* Destination */ icmCpy3(smp[i].temp, smp[i].dv2); /* Save a copy to temp */ - smp[i].w2 = 0.8; + smp[i].w2 = 0.7; /* De-weight due to density */ + + icmBlend3(mv2, mv2, napoint, 0.6); /* Half way to na */ + icmCpy3(smp[i].sd3, mv2); + + smp[i].w3 = 0.4 * gamcknf; /* [0.3] Weight with knee factor */ + /* and to control overshoot */ + } else { //if (PFCOND) printf("~1 point is gamut exp & vect exp. mint %f maxt %f\n",mint,maxt); smp[i].gflag = 2; /* Gamut expansion and */ @@ -3323,6 +3413,10 @@ datao map_oh icmCpy3(smp[i].temp, smp[i].dv2); /* Save a copy to temp */ smp[i].w2 = 0.8; + icmBlend3(mv2, mv2, napoint, 0.5); /* Half way to na */ + icmCpy3(smp[i].sd3, mv2); + smp[i].w3 = 0.3 * gamcknf; /* Weight with knee fact */ + /* Conflicted case */ } else { /* Nonsense vector */ @@ -3421,9 +3515,11 @@ void free_nearsmth(nearsmth *smp, int nmpts) { /* =================================================================== */ #if defined(SAVE_VRMLS) && defined(PLOT_MAPPING_INFLUENCE) + /* Create a plot indicating how the source mapping has been guided by the */ -/* various weighting forces */ +/* various weighting forces. */ static void create_influence_plot(nearsmth *smp, int nmpts) { + int i, j, k; gamut *gam; int src = 0; /* 1 = src, 0 = dst gamuts */ vrml *wrl = NULL; @@ -3440,20 +3536,14 @@ static void create_influence_plot(nearsmth *smp, int nmpts) { int ix; if (src) - gam = sci_gam; + gam = smp->sgam; else - gam = di_gam; + gam = smp->dgam; /* Setup the scattered data points */ if ((fpnts = (co *)malloc((nmpts) * sizeof(co))) == NULL) { fprintf(stderr,"gamut map: Malloc of diagnostic mapping setup points failed\n"); - if (si_gam != sc_gam) - sci_gam->del(sci_gam); - if (di_gam != sci_gam && di_gam != sci_gam) - di_gam->del(di_gam); - free_nearsmth(smp, nmpts); - *npp = 0; - return NULL; + return; } /* Compute error values and diagnostic color */ @@ -3465,7 +3555,7 @@ static void create_influence_plot(nearsmth *smp, int nmpts) { /* Source value location */ if (src) { for (j = 0; j < 3; j++) - fpnts[i].p[j] = smp[i]._sv[j]; /* Non rotated and elevated */ + fpnts[i].p[j] = smp[i]._sv[j]; /* Non cusp rotated */ } else { /* Dest value location */ for (j = 0; j < 3; j++) fpnts[i].p[j] = smp[i].dv[j]; @@ -3502,7 +3592,7 @@ static void create_influence_plot(nearsmth *smp, int nmpts) { /* Create the diagnostic color rspl */ for (j = 0; j < 3; j++) { /* Set resolution for all axes */ - gres[j] = mapres; + gres[j] = smp->mapres; avgdev[j] = 0.001; } swdiag = new_rspl(RSPL_NOFLAGS, 3, 3); /* Allocate 3D -> 3D */ @@ -3510,19 +3600,11 @@ static void create_influence_plot(nearsmth *smp, int nmpts) { /* Now create a plot of the sci_gam with the vertexes colored acording to the */ /* diagnostic map. */ - if ((wrl = new_vrml("sci_gam_wt.wrl", 1)) == NULL) { - fprintf(stderr,"gamut map: new_vrml failed\n"); - if (fpnts != NULL) - free(fpnts); - if (swdiag != NULL) - swdiag->del(swdiag); - if (si_gam != sc_gam) - sci_gam->del(sci_gam); - if (di_gam != sci_gam && di_gam != sci_gam) - di_gam->del(di_gam); - free_nearsmth(smp, nmpts); - *npp = 0; - return NULL; + if ((wrl = new_vrml("sci_gam_wt", 1, vrml_lab)) == NULL) { + fprintf(stderr,"gamut map: new_vrml failed for '%s%s'\n","sci_gam_wt",vrm_ext()); + swdiag->del(swdiag); + free(fpnts); + return; } /* Plot the gamut triangle vertexes */ @@ -3532,6 +3614,7 @@ static void create_influence_plot(nearsmth *smp, int nmpts) { ix = gam->getvert(gam, NULL, pp.p, ix); swdiag->interp(swdiag, &pp); + icmClip3(pp.v, pp.v); wrl->add_col_vertex(wrl, 0, pp.p, pp.v); } gam->startnexttri(gam); @@ -3543,7 +3626,7 @@ static void create_influence_plot(nearsmth *smp, int nmpts) { } wrl->make_triangles_vc(wrl, 0, 0.0); - printf("Writing sci_gam_wt.wrl file\n"); + printf("Writing sci_gam_wt%s file\n",vrml_ext()); wrl->del(wrl); /* Write file */ free(fpnts); swdiag->del(swdiag); diff --git a/gamut/nearsmth.h b/gamut/nearsmth.h index 6e94969..f826357 100644 --- a/gamut/nearsmth.h +++ b/gamut/nearsmth.h @@ -91,10 +91,12 @@ typedef struct { /* Cusp alignment control */ struct { iweight w; /* Component alignment weights, 0 - 1 */ + double tw; /* Alignment twist power, 0 = linear, 1 = curve, 2+ late curve */ + /* Use > 0 to make cusp alignment only affect surface colors. */ double cx; /* Chroma expansion, 1 = none, > 1 = more */ } c; - /* Radial weighting */ + /* Radial weighting (This seems to be not working at the moment ?) */ /* Weight to give to minimizing delta E to source mapped radially */ struct { double o; /* Overall Radial weight */ @@ -102,7 +104,7 @@ typedef struct { double l; /* l dominance vs, c, 0 - 1 */ } l; - /* Absolute error weighting */ + /* Absolute error weighting. */ /* Weight given to minimizing delta E to destination closest point */ struct { double o; /* Overall Absolute weight */ @@ -166,7 +168,7 @@ struct _nearsmth { /* Public: */ int gflag; /* Gamut direction flag. 0 = not determinable, 1 = comp., 2 = exp. */ int vflag; /* Vector direction flag. 0 = not determinable, 1 = comp., 2 = exp. */ - /* sv2 & dv2 are valid if vflag != 0 */ + /* sv2, dv2, sd3 etc. are valid if vflag != 0 */ /* Gamut surface mapping guide point */ double sv[3]; /* Source value (input, cusp aligned during fwd optimization) */ @@ -179,9 +181,12 @@ struct _nearsmth { /* Gamut sub-surface mapping guide point (knee shape controlled by gamcknf & gamxknf) */ double sv2[3]; /* Sub-surface source value */ - double dv2[3]; /* Sub-surface destination value */ + double dv2[3]; /* Sub-surface knee'd adjusted destination value */ double div2[3]; /* gam[cx]pf moderated dv2[] value */ - double w2; /* Sub-surface weight */ + double w2; /* Sub-surface weight (fixed in nearsmth) */ + + double sd3[3]; /* Deep sub-surface source & destination value */ + double w3; /* Deep sub-surface weight */ /* Diagnostic points */ double csv[3]; /* Non-cusp mapped source value */ @@ -215,6 +220,8 @@ struct _nearsmth { double dcratio; /* Depth compression ratio */ double dxratio; /* Depth expansion ratio */ + int mapres; /* Target grid res for 3D RSPL */ + int debug; double dbgv[4]; /* Error components va, vr, vl, vd on last itteration */ diff --git a/gamut/smthtest.c b/gamut/smthtest.c index 24fdfef..c9214d3 100644 --- a/gamut/smthtest.c +++ b/gamut/smthtest.c @@ -35,6 +35,8 @@ #include "rspl.h" #include "gamut.h" #include "nearsmth.h" +#include "vrml.h" +#include "ui.h" double m21po[3] = { 2.0, 1.0, 2.0 }; /* Many to 1 filter mixing power LCh (theoretically 2) */ @@ -44,8 +46,8 @@ gammapweights weights[] = { gmm_default, /* Non hue specific defaults */ { /* Cusp alignment control */ { - 0.0, /* Cusp luminance alignment weighting 0 = none, 1 = full */ - 0.0, /* Cusp chroma alignment weighting 0 = none, 1 = full */ + 0.1, /* Cusp luminance alignment weighting 0 = none, 1 = full */ + 0.1, /* Cusp chroma alignment weighting 0 = none, 1 = full */ 0.2 /* Cusp hue alignment weighting 0 = none, 1 = full */ }, 1.00 /* Chroma expansion 1 = none */ @@ -91,12 +93,6 @@ void usage(void) { exit(1); } -FILE *start_vrml(char *name, int doaxes); -void start_line_set(FILE *wrl); -void add_vertex(FILE *wrl, double pp[3]); -void make_lines(FILE *wrl, int ppset); -void end_vrml(FILE *wrl); - int main(int argc, char *argv[]) { int fa,nfa; /* argument we're looking at */ @@ -112,7 +108,8 @@ main(int argc, char *argv[]) { gamut *gin, *gout; /* Input and Output gamuts */ nearsmth *nsm; /* Returned list of near smooth points */ int nnsm; /* Number of near smoothed points */ - FILE *wrl; /* VRML output file */ + int doaxes = 1; + vrml *wrl; /* VRML/X3D output file */ gammapweights xweights[14]; @@ -218,22 +215,25 @@ main(int argc, char *argv[]) { error("Creating smoothed near points failed"); /* Output the src to smoothed near point vectors */ - if ((xl = strrchr(diag_name, '.')) == NULL) { /* Add .wrl extention if there isn't one */ + if ((xl = strrchr(diag_name, '.')) == NULL) /* Clear extension */ xl = diag_name + strlen(diag_name); - strcpy(xl,".wrl"); + xl[0] = '\000'; + + if ((wrl = new_vrml(diag_name, doaxes, vrml_lab)) != 0) { + error("new_vrml failed for '%s%s'",diag_name,vrml_ext()); } - wrl = start_vrml(diag_name, 1); - start_line_set(wrl); + wrl->start_line_set(wrl, 0); for (i = 0; i < nnsm; i++) { - add_vertex(wrl, nsm[i].sv); /* Source gamut point */ - add_vertex(wrl, nsm[i].dv); /* Smoother destination value */ + wrl->add_vertex(wrl, 0, nsm[i].sv); /* Source gamut point */ + wrl->add_vertex(wrl, 0, nsm[i].dv); /* Smoother destination value */ // add_vertex(wrl, nsm[i].drv); /* Radial points */ } - make_lines(wrl, 2); - end_vrml(wrl); + wrl->make_lines(wrl, 0, 2); + + wrl->del(wrl); /* Write file */ /* Clean up */ free_nearsmth(nsm, nnsm); @@ -244,217 +244,4 @@ main(int argc, char *argv[]) { return 0; } -/* ------------------------------------------------ */ -/* Some simple functions to do basic VRML work */ - -#ifndef GAMUT_LCENT -#define GAMUT_LCENT 50.0 -#endif -static int npoints = 0; -static int paloc = 0; -static struct { double pp[3]; } *pary; - -static void Lab2RGB(double *out, double *in); - -FILE *start_vrml(char *name, int doaxes) { - FILE *wrl; - struct { - double x, y, z; - double wx, wy, wz; - double r, g, b; - } axes[5] = { - { 0, 0, 50-GAMUT_LCENT, 2, 2, 100, .7, .7, .7 }, /* L axis */ - { 50, 0, 0-GAMUT_LCENT, 100, 2, 2, 1, 0, 0 }, /* +a (red) axis */ - { 0, -50, 0-GAMUT_LCENT, 2, 100, 2, 0, 0, 1 }, /* -b (blue) axis */ - { -50, 0, 0-GAMUT_LCENT, 100, 2, 2, 0, 1, 0 }, /* -a (green) axis */ - { 0, 50, 0-GAMUT_LCENT, 2, 100, 2, 1, 1, 0 }, /* +b (yellow) axis */ - }; - int i; - - if ((wrl = fopen(name,"w")) == NULL) - error("Error opening VRML file '%s'\n",name); - - npoints = 0; - - fprintf(wrl,"#VRML V2.0 utf8\n"); - fprintf(wrl,"\n"); - fprintf(wrl,"# Created by the Argyll CMS\n"); - fprintf(wrl,"Transform {\n"); - fprintf(wrl,"children [\n"); - fprintf(wrl," NavigationInfo {\n"); - fprintf(wrl," type \"EXAMINE\" # It's an object we examine\n"); - fprintf(wrl," } # We'll add our own light\n"); - fprintf(wrl,"\n"); - fprintf(wrl," DirectionalLight {\n"); - fprintf(wrl," direction 0 0 -1 # Light illuminating the scene\n"); - fprintf(wrl," direction 0 -1 0 # Light illuminating the scene\n"); - fprintf(wrl," }\n"); - fprintf(wrl,"\n"); - fprintf(wrl," Viewpoint {\n"); - fprintf(wrl," position 0 0 340 # Position we view from\n"); - fprintf(wrl," }\n"); - fprintf(wrl,"\n"); - if (doaxes != 0) { - fprintf(wrl,"# Lab axes as boxes:\n"); - for (i = 0; i < 5; i++) { - fprintf(wrl,"Transform { translation %f %f %f\n", axes[i].x, axes[i].y, axes[i].z); - fprintf(wrl,"\tchildren [\n"); - fprintf(wrl,"\t\tShape{\n"); - fprintf(wrl,"\t\t\tgeometry Box { size %f %f %f }\n", - axes[i].wx, axes[i].wy, axes[i].wz); - fprintf(wrl,"\t\t\tappearance Appearance { material Material "); - fprintf(wrl,"{ diffuseColor %f %f %f} }\n", axes[i].r, axes[i].g, axes[i].b); - fprintf(wrl,"\t\t}\n"); - fprintf(wrl,"\t]\n"); - fprintf(wrl,"}\n"); - } - fprintf(wrl,"\n"); - } - - return wrl; -} - -void -start_line_set(FILE *wrl) { - - fprintf(wrl,"\n"); - fprintf(wrl,"Shape {\n"); - fprintf(wrl," geometry IndexedLineSet { \n"); - fprintf(wrl," coord Coordinate { \n"); - fprintf(wrl," point [\n"); -} - -void add_vertex(FILE *wrl, double pp[3]) { - - fprintf(wrl,"%f %f %f,\n",pp[1], pp[2], pp[0]-GAMUT_LCENT); - - if (paloc < (npoints+1)) { - paloc = (paloc + 10) * 2; - if (pary == NULL) - pary = malloc(paloc * 3 * sizeof(double)); - else - pary = realloc(pary, paloc * 3 * sizeof(double)); - - if (pary == NULL) - error ("Malloc failed"); - } - pary[npoints].pp[0] = pp[0]; - pary[npoints].pp[1] = pp[1]; - pary[npoints].pp[2] = pp[2]; - npoints++; -} - - -void make_lines(FILE *wrl, int ppset) { - int i, j; - - fprintf(wrl," ]\n"); - fprintf(wrl," }\n"); - fprintf(wrl," coordIndex [\n"); - - for (i = 0; i < npoints;) { - for (j = 0; j < ppset; j++, i++) { - fprintf(wrl,"%d, ", i); - } - fprintf(wrl,"-1,\n"); - } - fprintf(wrl," ]\n"); - - /* Color */ - fprintf(wrl," colorPerVertex TRUE\n"); - fprintf(wrl," color Color {\n"); - fprintf(wrl," color [ # RGB colors of each vertex\n"); - - for (i = 0; i < npoints; i++) { - double rgb[3], Lab[3]; - Lab[0] = pary[i].pp[0]; - Lab[1] = pary[i].pp[1]; - Lab[2] = pary[i].pp[2]; - Lab2RGB(rgb, Lab); - fprintf(wrl," %f %f %f,\n", rgb[0], rgb[1], rgb[2]); - } - fprintf(wrl," ] \n"); - fprintf(wrl," }\n"); - /* End color */ - - fprintf(wrl," }\n"); - fprintf(wrl,"} # end shape\n"); - -} - -void end_vrml(FILE *wrl) { - - fprintf(wrl,"\n"); - fprintf(wrl," ] # end of children for world\n"); - fprintf(wrl,"}\n"); - - if (fclose(wrl) != 0) - error("Error closing VRML file\n"); -} - - -/* Convert a gamut Lab value to an RGB value for display purposes */ -static void -Lab2RGB(double *out, double *in) { - double L = in[0], a = in[1], b = in[2]; - double x,y,z,fx,fy,fz; - double R, G, B; - - /* Scale so that black is visible */ - L = L * (100 - 40.0)/100.0 + 40.0; - - /* First convert to XYZ using D50 white point */ - if (L > 8.0) { - fy = (L + 16.0)/116.0; - y = pow(fy,3.0); - } else { - y = L/903.2963058; - fy = 7.787036979 * y + 16.0/116.0; - } - - fx = a/500.0 + fy; - if (fx > 24.0/116.0) - x = pow(fx,3.0); - else - x = (fx - 16.0/116.0)/7.787036979; - - fz = fy - b/200.0; - if (fz > 24.0/116.0) - z = pow(fz,3.0); - else - z = (fz - 16.0/116.0)/7.787036979; - - x *= 0.9642; /* Multiply by white point, D50 */ - y *= 1.0; - z *= 0.8249; - - /* Now convert to sRGB values */ - R = x * 3.2410 + y * -1.5374 + z * -0.4986; - G = x * -0.9692 + y * 1.8760 + z * 0.0416; - B = x * 0.0556 + y * -0.2040 + z * 1.0570; - - if (R < 0.0) - R = 0.0; - else if (R > 1.0) - R = 1.0; - - if (G < 0.0) - G = 0.0; - else if (G > 1.0) - G = 1.0; - - if (B < 0.0) - B = 0.0; - else if (B > 1.0) - B = 1.0; - - R = pow(R, 1.0/2.2); - G = pow(G, 1.0/2.2); - B = pow(B, 1.0/2.2); - - out[0] = R; - out[1] = G; - out[2] = B; -} - diff --git a/gamut/viewgam.c b/gamut/viewgam.c index 0b58269..9a7a2f5 100644 --- a/gamut/viewgam.c +++ b/gamut/viewgam.c @@ -26,6 +26,7 @@ #include "numlib.h" #include "gamut.h" #include "cgats.h" +#include "vrml.h" /* This program reads one or more CGATS format triangular gamut @@ -40,7 +41,7 @@ #undef DEBUG -#undef HALF_HACK /* 27.0 */ +#undef HALF_HACK /* 27.0 */ /* Crude cutting plane */ void usage(char *diag, ...) { fprintf(stderr,"View gamuts Version %s\n",ARGYLL_VERSION_STR); @@ -53,7 +54,7 @@ void usage(char *diag, ...) { va_end(args); fprintf(stderr,"\n"); } - fprintf(stderr,"usage: viewgam { [-c color] [-t trans] [-w|s] infile.gam } ... outfile.wrl\n"); + fprintf(stderr,"usage: viewgam { [-c color] [-t trans] [-w|s] infile.gam } ... outfile%s\n",vrml_ext()); fprintf(stderr," -c color Color to make gamut, r = red, g = green, b = blue\n"); fprintf(stderr," c = cyan, m = magenta, y = yellow, e = grey, w = white\n"); fprintf(stderr," n = natural color\n"); @@ -66,13 +67,12 @@ void usage(char *diag, ...) { fprintf(stderr," -k Add markers for prim. & sec. \"cusp\" points\n"); fprintf(stderr," -i Compute and print intersecting volume of first 2 gamuts\n"); fprintf(stderr," -I isect.gam Same as -i, but save intersection gamut to isect.gam\n"); - fprintf(stderr," outfile.wrl Name of output .wrl file\n"); + fprintf(stderr," (Set env. ARGYLL_3D_DISP_FORMAT to VRML, X3D or X3DOM to change format)\n"); + fprintf(stderr," outfile Base name of output %s file\n",vrml_ext()); fprintf(stderr,"\n"); exit(1); } -#define GCENT 50.0 /* Center of object view */ - typedef enum { gam_red = 0, gam_green = 1, @@ -86,7 +86,7 @@ typedef enum { } gam_colors; struct { - double r, g, b; + double rgb[3]; } color_rgb[8] = { { 1, 0, 0 }, /* gam_red */ { 0, 1, 0 }, /* gam_green */ @@ -172,8 +172,8 @@ main(int argc, char *argv[]) { int doaxes = 1; int docusps = 0; int isect = 0; - FILE *wrl; - char out_name[MAXNAMEL+1]; + vrml *wrl; + char out_name[MAXNAMEL+1+10]; char iout_name[MAXNAMEL+1] = "\000";; if (argc < 3) usage("Too few arguments, got %d expect at least 2",argc-1); @@ -313,9 +313,9 @@ main(int argc, char *argv[]) { /* so unwind it. */ if (ng < 2) - usage("Not enough arguments to specify output VRML files"); + usage("Not enough arguments to specify output %s files",vrml_format()); - strncpy(out_name,gds[--ng].in_name,MAXNAMEL); out_name[MAXNAMEL] = '\000'; + strncpy(out_name, gds[--ng].in_name,MAXNAMEL); out_name[MAXNAMEL] = '\000'; #ifdef DEBUG for (n = 0; n < ng; n++) { @@ -328,102 +328,10 @@ main(int argc, char *argv[]) { printf("Output file is '%s'\n",out_name); #endif /* DEBUG */ - /* Open up the output file */ - if ((wrl = fopen(out_name,"w")) == NULL) - error("Error opening output file '%s'\n",out_name); + /* Create the VRML object */ + if ((wrl = new_vrml(out_name, doaxes, vrml_lab)) == NULL) + error("Error creating %s object '%s%s'\n",vrml_format(),out_name,vrml_ext()); - /* Write the header info */ - - fprintf(wrl,"#VRML V2.0 utf8\n"); - fprintf(wrl,"\n"); - fprintf(wrl,"# Created by the Argyll CMS\n"); - fprintf(wrl,"Transform {\n"); - fprintf(wrl," children [\n"); - fprintf(wrl," NavigationInfo {\n"); - fprintf(wrl," type \"EXAMINE\" # It's an object we examine\n"); - fprintf(wrl," } # We'll add our own light\n"); - fprintf(wrl,"\n"); -#ifdef NEVER - fprintf(wrl," DirectionalLight {\n"); - fprintf(wrl," direction 0 0 -1 # Light illuminating the scene\n"); - fprintf(wrl," direction 0 -1 0 # Light illuminating the scene\n"); - fprintf(wrl," }\n"); -#else - fprintf(wrl," DirectionalLight {\n"); - fprintf(wrl," intensity 0.2\n"); - fprintf(wrl," ambientIntensity 0.1\n"); - fprintf(wrl," direction -1 -1 -1\n"); - fprintf(wrl," }\n"); - fprintf(wrl," DirectionalLight {\n"); - fprintf(wrl," intensity 0.6\n"); - fprintf(wrl," ambientIntensity 0.2\n"); - fprintf(wrl," direction 1 1 1\n"); - fprintf(wrl," }\n"); -#endif - fprintf(wrl,"\n"); - fprintf(wrl," Viewpoint {\n"); - fprintf(wrl," position 0 0 340 # Position we view from\n"); - fprintf(wrl," }\n"); - fprintf(wrl,"\n"); - if (doaxes) { - /* Define the axis boxes */ - struct { - double x, y, z; /* Box center */ - double wx, wy, wz; /* Box size */ - double r, g, b; /* Box color */ - } axes[5] = { - { 0, 0, 50-GCENT, 2, 2, 100, .7, .7, .7 }, /* L axis */ - { 50, 0, 0-GCENT, 100, 2, 2, 1, 0, 0 }, /* +a (red) axis */ - { 0, -50, 0-GCENT, 2, 100, 2, 0, 0, 1 }, /* -b (blue) axis */ - { -50, 0, 0-GCENT, 100, 2, 2, 0, 1, 0 }, /* -a (green) axis */ - { 0, 50, 0-GCENT, 2, 100, 2, 1, 1, 0 }, /* +b (yellow) axis */ - }; - - /* Define the labels */ - struct { - double x, y, z; - double size; - char *string; - double r, g, b; - } labels[6] = { - { -2, 2, -GCENT + 100 + 10, 10, "+L*", .7, .7, .7 }, /* Top of L axis */ - { -2, 2, -GCENT - 10, 10, "0", .7, .7, .7 }, /* Bottom of L axis */ - { 100 + 5, -3, 0-GCENT, 10, "+a*", 1, 0, 0 }, /* +a (red) axis */ - { -5, -100 - 10, 0-GCENT, 10, "-b*", 0, 0, 1 }, /* -b (blue) axis */ - { -100 - 15, -3, 0-GCENT, 10, "-a*", 0, 0, 1 }, /* -a (green) axis */ - { -5, 100 + 5, 0-GCENT, 10, "+b*", 1, 1, 0 }, /* +b (yellow) axis */ - }; - - fprintf(wrl," # Lab axes as boxes:\n"); - for (n = 0; n < 5; n++) { - fprintf(wrl," Transform { translation %f %f %f\n", axes[n].x, axes[n].y, axes[n].z); - fprintf(wrl," children [\n"); - fprintf(wrl," Shape{\n"); - fprintf(wrl," geometry Box { size %f %f %f }\n", - axes[n].wx, axes[n].wy, axes[n].wz); - fprintf(wrl," appearance Appearance { material Material "); - fprintf(wrl,"{ diffuseColor %f %f %f} }\n", axes[n].r, axes[n].g, axes[n].b); - fprintf(wrl," }\n"); - fprintf(wrl," ]\n"); - fprintf(wrl," }\n"); - } - fprintf(wrl," # Axes identification:\n"); - for (n = 0; n < 6; n++) { - fprintf(wrl," Transform { translation %f %f %f\n", labels[n].x, labels[n].y, labels[n].z); - fprintf(wrl," children [\n"); - fprintf(wrl," Shape{\n"); - fprintf(wrl," geometry Text { string [\"%s\"]\n",labels[n].string); - fprintf(wrl," fontStyle FontStyle { family \"SANS\" style \"BOLD\" size %f }\n", - labels[n].size); - fprintf(wrl," }\n"); - fprintf(wrl," appearance Appearance { material Material "); - fprintf(wrl,"{ diffuseColor %f %f %f} }\n", labels[n].r, labels[n].g, labels[n].b); - fprintf(wrl," }\n"); - fprintf(wrl," ]\n"); - fprintf(wrl," }\n"); - } - } - /* Read each input in turn */ for (n = 0; n < ng; n++) { int i; @@ -464,35 +372,18 @@ main(int argc, char *argv[]) { if (pp->t[0].ftype[bf] != r_t) error("Field LAB_B is wrong type"); - /* Write the vertexes out */ - fprintf(wrl,"\n"); - fprintf(wrl," Transform {\n"); - fprintf(wrl," translation 0 0 0\n"); - fprintf(wrl," children [\n"); - fprintf(wrl," Shape { \n"); - if (gds[n].in_rep == gam_wire) { - fprintf(wrl," geometry IndexedLineSet {\n"); - } else { - fprintf(wrl," geometry IndexedFaceSet {\n"); - fprintf(wrl," ccw FALSE\n"); - fprintf(wrl," convex TRUE\n"); - } - fprintf(wrl,"\n"); - fprintf(wrl," coord Coordinate { \n"); - fprintf(wrl," point [ # Verticy coordinates\n"); + wrl->start_line_set(wrl, 0); /* Spit out the point values, in order. */ /* Note that a->x, b->y, L->z */ for (i = 0; i < nverts; i++) { - double L, a, b; - L = *((double *)pp->t[0].fdata[i][Lf]); - a = *((double *)pp->t[0].fdata[i][af]); - b = *((double *)pp->t[0].fdata[i][bf]); - fprintf(wrl," %f %f %f,\n",a, b, L - GCENT); + double pos[3]; + pos[0] = *((double *)pp->t[0].fdata[i][Lf]); + pos[1] = *((double *)pp->t[0].fdata[i][af]); + pos[2] = *((double *)pp->t[0].fdata[i][bf]); + + wrl->add_vertex(wrl, 0, pos); } - fprintf(wrl," ]\n"); - fprintf(wrl," }\n"); - fprintf(wrl,"\n"); /* Write the triangles/wires out */ if ((v0f = pp->find_field(pp, 1, "VERTEX_0")) < 0) @@ -508,8 +399,6 @@ main(int argc, char *argv[]) { if (pp->t[1].ftype[v2f] != i_t) error("Field VERTEX_2 is wrong type"); - fprintf(wrl," coordIndex [ # Indexes of poligon Verticies \n"); - for (i = 0; i < ntris; i++) { int v0, v1, v2; v0 = *((int *)pp->t[1].fdata[i][v0f]); @@ -524,54 +413,43 @@ main(int argc, char *argv[]) { #endif /* HALF_HACK */ if (gds[n].in_rep == gam_wire) { - if (v0 < v1) /* Only output 1 wire of two on an edge */ - fprintf(wrl," %d, %d, -1\n", v0, v1); - if (v1 < v2) - fprintf(wrl," %d, %d, -1\n", v1, v2); - if (v2 < v0) - fprintf(wrl," %d, %d, -1\n", v2, v0); + int ix[2]; + if (v0 < v1) { /* Only output 1 wire of two on an edge */ + ix[0] = v0; + ix[1] = v1; + wrl->add_line(wrl, 0, ix); + } + if (v1 < v2) { + ix[0] = v1; + ix[1] = v2; + wrl->add_line(wrl, 0, ix); + } + if (v2 < v0) { + ix[0] = v2; + ix[1] = v0; + wrl->add_line(wrl, 0, ix); + } } else { - fprintf(wrl," %d, %d, %d, -1\n", v0, v1, v2); + int ix[3]; + ix[0] = v0; + ix[1] = v1; + ix[2] = v2; + wrl->add_triangle(wrl, 0, ix); } } - fprintf(wrl," ]\n"); - fprintf(wrl,"\n"); - - /* Write the colors out */ - if (gds[n].in_colors == gam_natural) { - fprintf(wrl," colorPerVertex TRUE\n"); - fprintf(wrl," color Color {\n"); - fprintf(wrl," color [ # RGB colors of each vertex\n"); - - for (i = 0; i < nverts; i++) { - double rgb[3], Lab[3]; - Lab[0] = *((double *)pp->t[0].fdata[i][Lf]); - Lab[1] = *((double *)pp->t[0].fdata[i][af]); - Lab[2] = *((double *)pp->t[0].fdata[i][bf]); - gamut_Lab2RGB(rgb, Lab); - fprintf(wrl," %f %f %f,\n", rgb[0], rgb[1], rgb[2]); - } - fprintf(wrl," ] \n"); - fprintf(wrl," }\n"); - } - fprintf(wrl," }\n"); - fprintf(wrl," appearance Appearance { \n"); - fprintf(wrl," material Material {\n"); - if (gds[n].in_trans > 0.0) { - fprintf(wrl," transparency %f\n", gds[n].in_trans); - } - fprintf(wrl," ambientIntensity 0.3\n"); - fprintf(wrl," shininess 0.5\n"); - if (gds[n].in_colors != gam_natural) { - fprintf(wrl," emissiveColor %f %f %f\n", - color_rgb[gds[n].in_colors].r, color_rgb[gds[n].in_colors].g, color_rgb[gds[n].in_colors].b); + + /* Write the wires or triangles out */ + if (gds[n].in_rep == gam_wire) { + if (gds[n].in_colors == gam_natural) + wrl->make_lines_vc(wrl, 0, gds[n].in_trans); + else + wrl->make_lines_cc(wrl, 0, gds[n].in_trans, color_rgb[gds[n].in_colors].rgb); + } else { + if (gds[n].in_colors == gam_natural) + wrl->make_triangles_vc(wrl, 0, gds[n].in_trans); + else + wrl->make_triangles(wrl, 0, gds[n].in_trans, color_rgb[gds[n].in_colors].rgb); } - fprintf(wrl," }\n"); - fprintf(wrl," }\n"); - fprintf(wrl," } # end Shape\n"); - fprintf(wrl," ] # end children\n"); - fprintf(wrl," } # end Transform\n"); - fprintf(wrl,"\n"); /* See if there are cusp values */ if (docusps) { @@ -590,39 +468,19 @@ main(int argc, char *argv[]) { break; } - gamut_Lab2RGB(rgb, Lab); - - fprintf(wrl,"\n"); - fprintf(wrl," Transform {\n"); - fprintf(wrl," translation %f %f %f\n",Lab[1], Lab[2], Lab[0]-GCENT); - fprintf(wrl," children [\n"); - fprintf(wrl," Shape { \n"); - fprintf(wrl," geometry Sphere { radius 2.0 }\n"); - fprintf(wrl," appearance Appearance { material Material {\n"); - if (gds[n].in_trans > 0.0) - fprintf(wrl," transparency %f\n", gds[n].in_trans); if (gds[n].in_colors != gam_natural) - fprintf(wrl," diffuseColor %f %f %f\n", color_rgb[gds[n].in_colors].r, color_rgb[gds[n].in_colors].g, color_rgb[gds[n].in_colors].b); + wrl->add_marker(wrl, Lab, color_rgb[gds[n].in_colors].rgb, 2.0); else - fprintf(wrl," diffuseColor %f %f %f\n", rgb[0], rgb[1], rgb[2]); - fprintf(wrl," }\n"); - fprintf(wrl," }\n"); - fprintf(wrl," }\n"); - fprintf(wrl," ]\n"); - fprintf(wrl," }\n"); + wrl->add_marker(wrl, Lab, NULL, 2.0); } - fprintf(wrl,"\n"); } - pp->del(pp); /* Clean up */ } - /* Write the trailer */ - fprintf(wrl," ] # end of children for world\n"); - fprintf(wrl,"}\n"); - - /* Close the file */ - fclose(wrl); + /* Write the file out */ + if (wrl->flush(wrl)) + error("Closing output file '%s%s'\n",out_name,vrml_ext()); + wrl->del(wrl); if (isect && ng >= 2) { gamut *s, *s1, *s2; diff --git a/h/aconfig.h b/h/aconfig.h index 91e43b8..31211e9 100644 --- a/h/aconfig.h +++ b/h/aconfig.h @@ -9,8 +9,8 @@ /* minor number = 8 bits */ /* major number = 8 bits */ -#define ARGYLL_VERSION 0x01063 -#define ARGYLL_VERSION_STR "1.6.3" +#define ARGYLL_VERSION 0x01070 +#define ARGYLL_VERSION_STR "1.7.0" /* Maximum file path length */ #define MAXNAMEL 1024 diff --git a/h/counters.h b/h/counters.h index e3944d9..0fbb11a 100644 --- a/h/counters.h +++ b/h/counters.h @@ -54,6 +54,17 @@ /* After init or increment, expression is TRUE if counter is done */ #define DC_DONE(nn) \ (nn##_e >= nn##_di) + +/* Typical use: + + DCOUNT(cc, 15, 3, -1, -1, 2); + + DC_INIT(cc); + while(!DC_DONE(cc)) { + + DC_INC(cc); + } + */ /* (Do we need a version of the above that tracks the actual input coords ?) */ /* ------------------------------------------------------- */ @@ -137,6 +148,9 @@ /* Declare the counter name nn, combinations out of total */ /* mxdi should be set to maximum combinations */ +/* e.g. if there are 8 objects, and we want all combinations */ +/* of 4 out of the 8, we would use: COMBO(nn, 4, 4, 8) */ + #define COMBO(nn, mxdi, comb, total) \ int nn[mxdi+2]; /* counter value */ \ int nn##_cmb = (comb); /* number of combinations */ \ diff --git a/icc/ClayRGB1998.icm b/icc/ClayRGB1998.icm index 1c3a02e..4c8ecb3 100644 Binary files a/icc/ClayRGB1998.icm and b/icc/ClayRGB1998.icm differ diff --git a/icc/EBU3213_PAL.icm b/icc/EBU3213_PAL.icm index 54cfed7..b0e67bc 100644 Binary files a/icc/EBU3213_PAL.icm and b/icc/EBU3213_PAL.icm differ diff --git a/icc/Jamfile b/icc/Jamfile index 9f27848..4bedbba 100644 --- a/icc/Jamfile +++ b/icc/Jamfile @@ -45,6 +45,12 @@ MainsFromSources mkDispProf.c ; if $(BUILD_JUNK) { + HDRS += ../plot ; + LINKLIBS += ../plot/libvrml ; + + #Monotonic behaviour checker + MainsFromSources mcheck.c ; + # MainsFromSources tt.c ; MainsFromSources mksRGB.c ; @@ -64,9 +70,6 @@ if $(BUILD_JUNK) { # check CIEDE2000 MainsFromSources testDE2K.c ; - - #Monotonic behaviour checker - MainsFromSources mcheck.c ; } diff --git a/icc/Makefile b/icc/Makefile index dbb9992..85f19be 100644 --- a/icc/Makefile +++ b/icc/Makefile @@ -28,7 +28,7 @@ CCFLAGS = $(CCFLAGSDEF) $(CCOPTFLAG) $(CCDEFINES) STDHDRS = $(STDHDRSDEF) LINKFLAGS = $(LINKFLAGSDEF) $(LINKDEBUGFLAG) -all:: libicc$(SUFLIB) icctest$(SUFEXE) lutest$(SUFEXE) icclu$(SUFEXE) iccdump$(SUFEXE) iccrw$(SUFEXE) +all:: libicc$(SUFLIB) icctest$(SUFEXE) lutest$(SUFEXE) icclu$(SUFEXE) iccdump$(SUFEXE) iccrw$(SUFEXE) mkDispProf$(SUFEXE) icc$(SUFOBJ): icc.c icc.h @@ -79,4 +79,11 @@ iccrw$(SUFEXE): iccrw$(SUFOBJ) iccstd$(SUFOBJ) libicc$(SUFLIB) $(LINK) $(LINKOF)iccrw$(SUFEXE) iccrw$(SUFOBJ) iccstd$(SUFOBJ) libicc$(SUFLIB) +mkDispProf$(SUFOBJ): mkDispProf.c icc.h + $(CC) $(CCOF)mkDispProf$(SUFOBJ) mkDispProf.c + +mkDispProf$(SUFEXE): mkDispProf$(SUFOBJ) iccstd$(SUFOBJ) libicc$(SUFLIB) + $(LINK) $(LINKOF)mkDispProf$(SUFEXE) mkDispProf$(SUFOBJ) iccstd$(SUFOBJ) libicc$(SUFLIB) + + diff --git a/icc/ProPhoto.icm b/icc/ProPhoto.icm index 3ed16cb..cb6ee56 100644 Binary files a/icc/ProPhoto.icm and b/icc/ProPhoto.icm differ diff --git a/icc/ProPhotoLin.icm b/icc/ProPhotoLin.icm index 579b903..28369aa 100644 Binary files a/icc/ProPhotoLin.icm and b/icc/ProPhotoLin.icm differ diff --git a/icc/Rec2020.icm b/icc/Rec2020.icm index 09d5ccf..0decaf6 100644 Binary files a/icc/Rec2020.icm and b/icc/Rec2020.icm differ diff --git a/icc/Rec709.icm b/icc/Rec709.icm index 46140bd..abf0a63 100644 Binary files a/icc/Rec709.icm and b/icc/Rec709.icm differ diff --git a/icc/SMPTE431_P3.icm b/icc/SMPTE431_P3.icm index f3861be..8055849 100644 Binary files a/icc/SMPTE431_P3.icm and b/icc/SMPTE431_P3.icm differ diff --git a/icc/SMPTE_RP145_NTSC.icm b/icc/SMPTE_RP145_NTSC.icm index a6ce7f1..7fc78fb 100644 Binary files a/icc/SMPTE_RP145_NTSC.icm and b/icc/SMPTE_RP145_NTSC.icm differ diff --git a/icc/icc.c b/icc/icc.c index 7dfe519..87ce500 100644 --- a/icc/icc.c +++ b/icc/icc.c @@ -373,13 +373,13 @@ const char *format, int rv; va_list args; icmFileMem *p = (icmFileMem *)pp; - int len; + int alen, len; va_start(args, format); rv = 1; - len = 100; /* Initial allocation for printf */ - icmFileMem_filemem_resize(p, p->cur + len); + alen = 100; /* Initial allocation for printf */ + icmFileMem_filemem_resize(p, p->cur + alen); /* We have to use the available printf functions to resize the buffer if needed. */ for (;rv != 0;) { @@ -391,15 +391,15 @@ const char *format, break; if (len > -1) /* vsnprintf returned needed size-1 */ - len = len+2; /* (In case vsnprintf returned 1 less than it needs) */ + alen = len+2; /* (In case vsnprintf returned 1 less than it needs) */ else - len *= 2; /* We just have to guess */ + alen *= 2; /* We just have to guess */ /* Attempt to resize */ - icmFileMem_filemem_resize(p, p->cur + len); + icmFileMem_filemem_resize(p, p->cur + alen); /* If resize failed */ - if ((p->aend - p->cur) < len) { + if ((p->aend - p->cur) < alen) { rv = 0; break; } @@ -710,12 +710,17 @@ static int write_S15Fixed16Number(double d, char *p) { return 0; } +/* Round a number to the same quantization as a S15Fixed16 */ static double round_S15Fixed16Number(double d) { - d = floor(d * 65536.0 + 0.5); /* Beware! (int)(d + 0.5) doesn't work! */ + d = floor(d * 65536.0 + 0.5); /* Beware! (int)(d + 0.5) doesn't work for -ve nummbets ! */ d = d/65536.0; return d; } +/* Macro version */ +#define RND_S15FIXED16(xxx) ((xxx) > 0.0 ? (int)((xxx) * 65536.0 + 0.5)/65536.0 \ + : (int)((xxx) * 65536.0 - 0.5)/65536.0) + /* Device coordinate as 8 bit value range 0.0 - 1.0 */ static double read_DCS8Number(char *p) { unsigned int rv; @@ -774,7 +779,6 @@ static void Lut_L2LutV2_16(double *out, double *in); static void Lut_Lut2LV4_16(double *out, double *in); static void Lut_L2LutV4_16(double *out, double *in); -//~~~~888888 /* read a PCS number. PCS can be profile PCS, profile version Lab, */ /* or a specific type of Lab, depending on the value of csig: */ /* icmSigPCSData, icSigXYZData, icmSigLab8Data, icSigLabData, */ @@ -1397,6 +1401,8 @@ static const char *string_TagSignature(icTagSignature sig) { return "BToA2 Multidimentional Transform"; case icSigCalibrationDateTimeTag: return "Calibration Date & Time"; + case icSigChromaticAdaptationTag: + return "Chromatic Adaptation"; case icSigCharTargetTag: return "Characterization Target"; case icSigCopyrightTag: @@ -1467,6 +1473,11 @@ static const char *string_TagSignature(icTagSignature sig) { return "Viewing Condition Description"; case icSigViewingConditionsTag: return "Viewing Condition Paramaters"; + + /* ArgyllCMS private tag: */ + case icmSigAbsToRelTransSpace: + return "Absolute to Media Relative Transformation Space matrix"; + default: sprintf(buf,"Unrecognized - %s",tag2str(sig)); return buf; @@ -3071,7 +3082,7 @@ static void icmU16Fixed16Array_dump( if (verb >= 2) { unsigned int i; for (i = 0; i < p->size; i++) - op->gprintf(op," %lu: %f\n",i,p->data[i]); + op->gprintf(op," %lu: %.8f\n",i,p->data[i]); } } @@ -3265,7 +3276,7 @@ static void icmS15Fixed16Array_dump( if (verb >= 2) { unsigned int i; for (i = 0; i < p->size; i++) - op->gprintf(op," %lu: %f\n",i,p->data[i]); + op->gprintf(op," %lu: %.8f\n",i,p->data[i]); } } @@ -3350,7 +3361,7 @@ static int read_XYZNumber(icmXYZNumber *p, char *d) { static char *string_XYZNumber(icmXYZNumber *p) { static char buf[40]; - sprintf(buf,"%f, %f, %f", p->X, p->Y, p->Z); + sprintf(buf,"%.8f, %.8f, %.8f", p->X, p->Y, p->Z); return buf; } @@ -3363,7 +3374,7 @@ static char *string_XYZNumber_and_Lab(icmXYZNumber *p) { lab[1] = p->Y; lab[2] = p->Z; icmXYZ2Lab(&icmD50, lab, lab); - snprintf(buf,sizeof(buf),"%f, %f, %f [Lab %f, %f, %f]", p->X, p->Y, p->Z, lab[0], lab[1], lab[2]); + snprintf(buf,sizeof(buf),"%.8f, %.8f, %.8f [Lab %f, %f, %f]", p->X, p->Y, p->Z, lab[0], lab[1], lab[2]); return buf; } @@ -3772,6 +3783,8 @@ static int icmTable_lookup_bwd( /* Do a reverse lookup through the curve */ /* Return 0 on success, 1 if clipping occured, 2 on other error */ +/* (Note that clipping means mathematical clipping, and is not */ +/* set just because a device value is out of gamut. */ static int icmCurve_lookup_bwd( icmCurve *p, double *out, @@ -3950,7 +3963,7 @@ static int icmCurve_write( return icp->errc = 1; } if ((rv = write_U8Fixed8Number(p->data[0],bp)) != 0) { - sprintf(icp->err,"icmCurve_write: write_U8Fixed8umber(%f) failed",p->data[0]); + sprintf(icp->err,"icmCurve_write: write_U8Fixed8umber(%.8f) failed",p->data[0]); icp->al->free(icp->al, buf); return icp->errc = rv; } @@ -3962,7 +3975,7 @@ static int icmCurve_write( } for (i = 0; i < p->size; i++, bp += 2) { if ((rv = write_DCS16Number(p->data[i],bp)) != 0) { - sprintf(icp->err,"icmCurve_write: write_UInt16umber(%f) failed",p->data[i]); + sprintf(icp->err,"icmCurve_write: write_UInt16umber(%.8f) failed",p->data[i]); icp->al->free(icp->al, buf); return icp->errc = rv; } @@ -3995,13 +4008,13 @@ static void icmCurve_dump( if (p->flag == icmCurveLin) { op->gprintf(op," Curve is linear\n"); } else if (p->flag == icmCurveGamma) { - op->gprintf(op," Curve is gamma of %f\n",p->data[0]); + op->gprintf(op," Curve is gamma of %.8f\n",p->data[0]); } else { op->gprintf(op," No. elements = %lu\n",p->size); if (verb >= 2) { unsigned int i; for (i = 0; i < p->size; i++) - op->gprintf(op," %3lu: %f\n",i,p->data[i]); + op->gprintf(op," %3lu: %.8f\n",i,p->data[i]); } } } @@ -4979,7 +4992,7 @@ double *in /* Input array[inputChan] */ return 0; } -/* Convert normalized numbers though this Luts input tables. */ +/* Convert normalized numbers though this Luts per channel input tables. */ /* Return 0 on success, 1 if clipping occured, 2 on other error */ static int icmLut_lookup_input( icmLut *p, /* Pointer to Lut object */ @@ -5212,140 +5225,7 @@ double *in /* Input array[outputChan] */ return rv; } -#ifdef NEVER // ~~~99 development code - -/* Convert normalized numbers though this Luts multi-dimensional table */ -/* using optimised simplex interpolation. */ -/* This version optimses the simplex split axis depending on the input */ -/* colorspace. */ -static int icmLut_lookup_clut_osx( -/* Return 0 on success, 1 if clipping occured, 2 on other error */ -icmLut *p, /* Pointer to Lut object */ -double *out, /* Output array[inputChan] */ -double *in /* Input array[outputChan] */ -) { - int rv = 0; - double *gp; /* Pointer to grid cube base */ - double co[MAX_CHAN]; /* Coordinate offset with the grid cell */ - int si[MAX_CHAN]; /* co[] Sort index, [0] = smalest */ - char xflip[MAX_CHAN]; /* Optimised simplex axis flip flags */ - - /* Compute base index into grid and coordinate offsets */ - { - unsigned int e; - double clutPoints_1 = (double)(p->clutPoints-1); - int clutPoints_2 = p->clutPoints-2; - gp = p->clutTable; /* Base of grid array */ - - for (e = 0; e < p->inputChan; e++) { - unsigned int x; - double val; -// ~~~999 -#ifdef NEVER - xflip[e] = p->finfo[e].bthff; - if (in[e] >= p->finfo[e].fth) - xflip[e] = p->finfo[e].athff; -#else - - xflip[e] = 0; - if (e == 0) - xflip[e] = 1; -#endif - val = in[e] * clutPoints_1; - if (val < 0.0) { - val = 0.0; - rv |= 1; - } else if (val > clutPoints_1) { - val = clutPoints_1; - rv |= 1; - } - x = (unsigned int)floor(val); /* Grid coordinate */ - if (x > clutPoints_2) - x = clutPoints_2; - co[e] = val - (double)x; /* 1.0 - weight */ - gp += x * p->dinc[e]; /* Add index offset for base of cube */ - if (xflip[e]) { /* Reverse sense of direction for this axis */ - co[e] = 1.0 - co[e]; - gp += p->dinc[e]; - } - } - } -//printf("*");fflush(stdout); -#ifdef NEVER - /* Do selection sort on coordinates, smallest to largest. */ - { - int e, f; - for (e = 0; e < p->inputChan; e++) - si[e] = e; /* Initial unsorted indexes */ - for (e = 0; e < (p->inputChan-1); e++) { - double cosn; - cosn = co[si[e]]; /* Current smallest value */ - for (f = e+1; f < p->inputChan; f++) { /* Check against rest */ - int tt; - tt = si[f]; - if (cosn > co[tt]) { - si[f] = si[e]; /* Exchange */ - si[e] = tt; - cosn = co[tt]; - } - } - } - } -#else - /* Do insertion sort on coordinates, smallest to largest. */ - { - int f, vf; - unsigned int e; - double v; - for (e = 0; e < p->inputChan; e++) - si[e] = e; /* Initial unsorted indexes */ - - for (e = 1; e < p->inputChan; e++) { - f = e; - v = co[si[f]]; - vf = f; - while (f > 0 && co[si[f-1]] > v) { - si[f] = si[f-1]; - f--; - } - si[f] = vf; - } - } -#endif - /* Now compute the weightings, simplex vertices and output values */ - { - unsigned int e, f; - double w; /* Current vertex weight */ - - w = 1.0 - co[si[p->inputChan-1]]; /* Vertex at base of cell */ - for (f = 0; f < p->outputChan; f++) - out[f] = w * gp[f]; - - for (e = p->inputChan-1; e > 0; e--) { /* Middle verticies */ - w = co[si[e]] - co[si[e-1]]; - if (xflip[e]) - gp -= p->dinc[si[e]]; /* Move to top of cell in next largest dimension */ - else - gp += p->dinc[si[e]]; /* Move to top of cell in next largest dimension */ - for (f = 0; f < p->outputChan; f++) - out[f] += w * gp[f]; - } - - w = co[si[0]]; - if (xflip[0]) - gp -= p->dinc[si[0]]; /* Far corner from base of cell */ - else - gp += p->dinc[si[0]]; /* Far corner from base of cell */ - for (f = 0; f < p->outputChan; f++) - out[f] += w * gp[f]; - } - return rv; -} - -#endif /* NEVER */ // ~~~99 development code - - -/* Convert normalized numbers though this Luts output tables. */ +/* Convert normalized numbers though this Luts per channel output tables. */ /* Return 0 on success, 1 if clipping occured, 2 on other error */ static int icmLut_lookup_output( icmLut *p, /* Pointer to Lut object */ @@ -5509,7 +5389,6 @@ double *in /* Input array[outputChan] */ double *gp; /* Pointer to grid cube base */ double co[MAX_CHAN]; /* Coordinate offset with the grid cell */ int si[MAX_CHAN]; /* co[] Sort index, [0] = smalest */ - double cout[MAX_CHAN]; /* Current output value */ /* We are using a simplex (ie. tetrahedral for 3D input) interpolation. */ /* This method is more appropriate for XYZ/RGB/CMYK input spaces, */ @@ -5562,6 +5441,7 @@ double *in /* Input array[outputChan] */ { unsigned int e, f; double w, ww = 0.0; /* Current vertex weight, sum of weights squared */ + double cout[MAX_CHAN]; /* Current output value */ double *ogp = gp; /* Pointer to grid cube base */ w = 1.0 - co[si[p->inputChan-1]]; /* Vertex at base of cell */ @@ -6461,8 +6341,8 @@ int icmSetMultiLutTables( } /* Next pass */ } /* Next table */ - free(clutTable1); - free(clutTable3); + icp->al->free(icp->al, clutTable1); + icp->al->free(icp->al, clutTable3); } /* Create the 1D output table entry values */ @@ -6815,7 +6695,7 @@ static int icmLut_write( } else { for (i = 0; i < size; i++, bp += 2) { if ((rv = write_DCS16Number(p->inputTable[i], bp)) != 0) { - sprintf(icp->err,"icmLut_write: inputTable write_DCS16Number(%f) failed",p->inputTable[i]); + sprintf(icp->err,"icmLut_write: inputTable write_DCS16Number(%.8f) failed",p->inputTable[i]); icp->al->free(icp->al, buf); return icp->errc = rv; } @@ -6835,7 +6715,7 @@ static int icmLut_write( } else { for (i = 0; i < size; i++, bp += 2) { if ((rv = write_DCS16Number(p->clutTable[i], bp)) != 0) { - sprintf(icp->err,"icmLut_write: clutTable write_DCS16Number(%f) failed",p->clutTable[i]); + sprintf(icp->err,"icmLut_write: clutTable write_DCS16Number(%.8f) failed",p->clutTable[i]); icp->al->free(icp->al, buf); return icp->errc = rv; } @@ -6855,7 +6735,7 @@ static int icmLut_write( } else { for (i = 0; i < size; i++, bp += 2) { if ((rv = write_DCS16Number(p->outputTable[i], bp)) != 0) { - sprintf(icp->err,"icmLut_write: outputTable write_DCS16Number(%f) failed",p->outputTable[i]); + sprintf(icp->err,"icmLut_write: outputTable write_DCS16Number(%.8f) failed",p->outputTable[i]); icp->al->free(icp->al, buf); return icp->errc = rv; } @@ -6893,9 +6773,9 @@ static void icmLut_dump( op->gprintf(op," CLUT resolution = %u\n",p->clutPoints); op->gprintf(op," Input Table entries = %u\n",p->inputEnt); op->gprintf(op," Output Table entries = %u\n",p->outputEnt); - op->gprintf(op," XYZ matrix = %f, %f, %f\n",p->e[0][0],p->e[0][1],p->e[0][2]); - op->gprintf(op," %f, %f, %f\n",p->e[1][0],p->e[1][1],p->e[1][2]); - op->gprintf(op," %f, %f, %f\n",p->e[2][0],p->e[2][1],p->e[2][2]); + op->gprintf(op," XYZ matrix = %.8f, %.8f, %.8f\n",p->e[0][0],p->e[0][1],p->e[0][2]); + op->gprintf(op," %.8f, %.8f, %.8f\n",p->e[1][0],p->e[1][1],p->e[1][2]); + op->gprintf(op," %.8f, %.8f, %.8f\n",p->e[2][0],p->e[2][1],p->e[2][2]); if (verb >= 2) { unsigned int i, j, size; @@ -7819,7 +7699,7 @@ static void icmNamedColor_dump( if (p->ttype == icSigNamedColor2Type) { switch(icp->header->pcs) { case icSigXYZData: - op->gprintf(op," XYZ = %f, %f, %f\n", + op->gprintf(op," XYZ = %.8f, %.8f, %.8f\n", vp->pcsCoords[0],vp->pcsCoords[1],vp->pcsCoords[2]); break; case icSigLabData: @@ -7836,7 +7716,7 @@ static void icmNamedColor_dump( for (n = 0; n < p->nDeviceCoords; n++) { if (n > 0) op->gprintf(op,", "); - op->gprintf(op,"%f",vp->deviceCoords[n]); + op->gprintf(op,"%.8f",vp->deviceCoords[n]); } op->gprintf(op,"\n"); } @@ -8188,7 +8068,7 @@ static void icmColorantTable_dump( switch(pcs) { case icSigXYZData: - op->gprintf(op," XYZ = %f, %f, %f\n", + op->gprintf(op," XYZ = %.8f, %.8f, %.8f\n", vp->pcsCoords[0],vp->pcsCoords[1],vp->pcsCoords[2]); break; case icSigLabData: @@ -8214,7 +8094,8 @@ static int icmColorantTable_allocate( if (p->count != p->_count) { unsigned int i; if (ovr_mul(p->count, sizeof(icmColorantTableVal))) { - sprintf(icp->err,"icmColorantTable_alloc: count overflow (%d of %lu bytes)",p->count,sizeof(icmColorantTableVal)); + sprintf(icp->err,"icmColorantTable_alloc: count overflow (%d of %lu bytes)", + p->count,(unsigned long)sizeof(icmColorantTableVal)); return icp->errc = 1; } if (p->data != NULL) @@ -9788,7 +9669,7 @@ static int icmUcrBg_write( } } else { if ((rv = write_DCS16Number(p->UCRcurve[i],bp)) != 0) { - sprintf(icp->err,"icmUcrBg_write: write_DCS16umber(%f) failed",p->UCRcurve[i]); + sprintf(icp->err,"icmUcrBg_write: write_DCS16umber(%.8f) failed",p->UCRcurve[i]); icp->al->free(icp->al, buf); return icp->errc = rv; } @@ -9812,7 +9693,7 @@ static int icmUcrBg_write( } } else { if ((rv = write_DCS16Number(p->BGcurve[i],bp)) != 0) { - sprintf(icp->err,"icmUcrBg_write: write_DCS16umber(%f) failed",p->BGcurve[i]); + sprintf(icp->err,"icmUcrBg_write: write_DCS16umber(%.8f) failed",p->BGcurve[i]); icp->al->free(icp->al, buf); return icp->errc = rv; } @@ -10302,15 +10183,15 @@ static void icmVideoCardGamma_dump( } } else if (p->tagType == icmVideoCardGammaFormulaType) { op->gprintf(op,"VideoCardGammaFormula:\n"); - op->gprintf(op," red gamma = %f\n", p->u.formula.redGamma); - op->gprintf(op," red min = %f\n", p->u.formula.redMin); - op->gprintf(op," red max = %f\n", p->u.formula.redMax); - op->gprintf(op," green gamma = %f\n", p->u.formula.greenGamma); - op->gprintf(op," green min = %f\n", p->u.formula.greenMin); - op->gprintf(op," green max = %f\n", p->u.formula.greenMax); - op->gprintf(op," blue gamma = %f\n", p->u.formula.blueGamma); - op->gprintf(op," blue min = %f\n", p->u.formula.blueMin); - op->gprintf(op," blue max = %f\n", p->u.formula.blueMax); + op->gprintf(op," red gamma = %.8f\n", p->u.formula.redGamma); + op->gprintf(op," red min = %.8f\n", p->u.formula.redMin); + op->gprintf(op," red max = %.8f\n", p->u.formula.redMax); + op->gprintf(op," green gamma = %.8f\n", p->u.formula.greenGamma); + op->gprintf(op," green min = %.8f\n", p->u.formula.greenMin); + op->gprintf(op," green max = %.8f\n", p->u.formula.greenMax); + op->gprintf(op," blue gamma = %.8f\n", p->u.formula.blueGamma); + op->gprintf(op," blue min = %.8f\n", p->u.formula.blueMin); + op->gprintf(op," blue max = %.8f\n", p->u.formula.blueMax); } else { op->gprintf(op," Unknown tag format\n"); } @@ -11364,6 +11245,7 @@ static struct { {icSigBToA1Tag, {icSigLut8Type,icSigLut16Type,icMaxEnumType}}, {icSigBToA2Tag, {icSigLut8Type,icSigLut16Type,icMaxEnumType}}, {icSigCalibrationDateTimeTag, {icSigDateTimeType,icMaxEnumType}}, + {icSigChromaticAdaptationTag, {icSigS15Fixed16ArrayType,icMaxEnumType}}, {icSigCharTargetTag, {icSigTextType,icMaxEnumType}}, {icSigColorantTableTag, {icSigColorantTableType,icmSigAltColorantTableType, icMaxEnumType}}, @@ -11403,6 +11285,9 @@ static struct { {icSigVideoCardGammaTag, {icSigVideoCardGammaType,icMaxEnumType}}, {icSigViewingCondDescTag, {icSigTextDescriptionType,icMaxEnumType}}, {icSigViewingConditionsTag, {icSigViewingConditionsType,icMaxEnumType}}, + + {icmSigAbsToRelTransSpace, {icSigS15Fixed16ArrayType,icMaxEnumType}}, + {icMaxEnumTag, {icMaxEnumType}} }; @@ -11550,13 +11435,13 @@ static struct { {icSigNamedColorClass, -200, icMaxEnumData, icMaxEnumData, {icSigProfileDescriptionTag, - icSigNamedColor2Tag, + icSigNamedColorTag, /* Not strictly V3.4 */ icSigMediaWhitePointTag, icSigCopyrightTag, icMaxEnumTag}}, {icSigNamedColorClass, -100, icMaxEnumData, icMaxEnumData, {icSigProfileDescriptionTag, - icSigNamedColorTag, /* Not strictly V3.4 */ + icSigNamedColor2Tag, icSigMediaWhitePointTag, icSigCopyrightTag, icMaxEnumTag}}, @@ -11652,7 +11537,7 @@ static int check_icc_legal( for (j = 0; tagchecktable[i].tags[j] != icMaxEnumType; j++) { if (p->find_tag(p, tagchecktable[i].tags[j]) != 0) { /* Not present! */ #ifdef NEVER - printf("icc_check_legal: deviceClass %s is missing required tag %s", tag2str(sig), tag2str(tagchecktable[i].tags[j])); + printf("icc_check_legal: deviceClass %s is missing required tag %s\n", tag2str(sig), tag2str(tagchecktable[i].tags[j])); #endif if (tagchecktable[i].chans == -200 || tagchecktable[i].chans == -dchans) { /* But can try next table */ @@ -11778,7 +11663,7 @@ static int icc_read_x( || p->data[i].size > (maxoff - minoff) || (p->data[i].offset + p->data[i].size) < p->data[i].offset /* Overflow */ || (p->data[i].offset + p->data[i].size) > p->header->size) { - sprintf(p->err,"icc_read: tag %d is out of range of the nominated file size",i); + sprintf(p->err,"icc_read: tag %d sig %s offset %d size %d is out of range of the nominated file size %d",i,tag2str(p->data[i].sig),p->data[i].offset,p->data[i].size,maxoff); p->al->free(p->al, p->data); p->data = NULL; return p->errc = 1; @@ -11799,6 +11684,82 @@ static int icc_read_x( } } /* p->count > 0 */ + /* Check if there is an ArgyllCMS 'arts' tag, and setup the wpchtmx[][] matrix from it. */ + { + icmS15Fixed16Array *artsTag; + + if ((artsTag = (icmS15Fixed16Array *)p->read_tag(p, icmSigAbsToRelTransSpace)) != NULL + && artsTag->ttype == icSigS15Fixed16ArrayType + && artsTag->size >= 9) { + + p->wpchtmx[0][0] = artsTag->data[0]; + p->wpchtmx[0][1] = artsTag->data[1]; + p->wpchtmx[0][2] = artsTag->data[2]; + p->wpchtmx[1][0] = artsTag->data[3]; + p->wpchtmx[1][1] = artsTag->data[4]; + p->wpchtmx[1][2] = artsTag->data[5]; + p->wpchtmx[2][0] = artsTag->data[6]; + p->wpchtmx[2][1] = artsTag->data[7]; + p->wpchtmx[2][2] = artsTag->data[8]; + + icmInverse3x3(p->iwpchtmx, p->wpchtmx); + + p->useArts = 1; /* Save it if it was in profile */ + + } else { + /* If an ArgyllCMS created profile, or if it's a Display profile, */ + /* use Bradford. This makes sRGB and AdobeRGB etc. work correctly */ + /* for absolute colorimetic. Note that for display profiles that set */ + /* the WP to D50 and store their chromatic transform in the 'chad' tag, */ + /* (i.e. some V2 profiles and all V4 profiles) this will have no effect */ + /* on the Media Relative WP Transformation since D50 -> D50, and */ + /* the 'chad' tag will be used to set the internal MediaWhite value */ + /* and transform matrix. */ + if (p->header->creator == str2tag("argl") + || p->header->deviceClass == icSigDisplayClass) { + + icmCpy3x3(p->wpchtmx, icmBradford); + icmInverse3x3(p->iwpchtmx, p->wpchtmx); + + /* Default to ICC standard Wrong Von Kries */ + /* for non-ArgyllCMS, non-Display profiles. */ + } else { + icmCpy3x3(p->wpchtmx, icmWrongVonKries); + icmCpy3x3(p->iwpchtmx, icmWrongVonKries); + } + + p->useArts = 0; /* Don't save it if it wasn't in profile */ + } + + p->autoWpchtmx = 0; /* It's been set on reading - don't set automatically */ + } + + /* If this is a Display profile, check if there is a 'chad' tag, and read it */ + /* in if it exists. We will use this latter. */ + { + icmS15Fixed16Array *chadTag; + + if (p->header->deviceClass == icSigDisplayClass + && (chadTag = (icmS15Fixed16Array *)p->read_tag(p, icSigChromaticAdaptationTag)) != NULL + && chadTag->ttype == icSigS15Fixed16ArrayType + && chadTag->size == 9) { + + p->chadmx[0][0] = chadTag->data[0]; + p->chadmx[0][1] = chadTag->data[1]; + p->chadmx[0][2] = chadTag->data[2]; + p->chadmx[1][0] = chadTag->data[3]; + p->chadmx[1][1] = chadTag->data[4]; + p->chadmx[1][2] = chadTag->data[5]; + p->chadmx[2][0] = chadTag->data[6]; + p->chadmx[2][1] = chadTag->data[7]; + p->chadmx[2][2] = chadTag->data[8]; + + p->chadValid = 1; + + p->useChad = 1; /* Use it when writing */ + } + } + return er; } @@ -11946,6 +11907,8 @@ static unsigned int icc_get_size( return size; /* Total size needed, or UINT_MAX if overflow */ } +void quantize3x3S15Fixed16(double targ[3], double mat[3][3], double in[3]); + /* Write the contents of the object. Return 0 on sucess, error code on failure */ /* NOTE: fp ownership is taken even if the function fails. */ static int icc_write_x( @@ -11965,19 +11928,121 @@ static int icc_write_x( p->del_fp = 1; p->of = of; /* Offset of ICC profile */ - for (i = 0; i < ALIGN_SIZE; i++) - pbuf[i] = 0; + /* Compute the total size and tag element data offsets */ + if (p->header == NULL) { + sprintf(p->err,"icc_write: No header defined"); + return p->errc = 1; + } + + /* If we're using the ArgyllCMS 'arts' tag to record the chromatic */ + /* adapation cone matrix used for the Media Relative WP Transformation, */ + /* create it and set it from the wpchtmx[][] matrix. */ + /* Don't write it if there is to 'wtpt' tag (i.e. it's a device link) */ + if (p->useArts + && p->find_tag(p, icSigMediaWhitePointTag) == 0) { + icmS15Fixed16Array *artsTag; + + /* Make sure no 'arts' tag currently exists */ + if (p->delete_tag(p, icmSigAbsToRelTransSpace) != 0 + && p->errc != 2) { + sprintf(p->err,"icc_write: Deleting existing 'arts' tag failed"); + return p->errc = 1; + } + + /* Add one */ + if ((artsTag = (icmS15Fixed16Array *)p->add_tag(p, icmSigAbsToRelTransSpace, + icSigS15Fixed16ArrayType)) == NULL) { + sprintf(p->err,"icc_write: Adding 'arts' tag failed"); + return p->errc = 1; + } + artsTag->size = 9; + if ((rv = artsTag->allocate((icmBase *)artsTag) ) != 0) { + sprintf(p->err,"icc_write: Allocating 'arts' tag failed"); + return p->errc = 1; + } + + /* The cone matrix is assumed to be arranged conventionaly for matrix */ + /* times vector multiplication. */ + /* Consistent with ICC usage, the dimension corresponding to the matrix */ + /* rows varies least rapidly while the one corresponding to the matrix */ + /* columns varies most rapidly. */ + artsTag->data[0] = p->wpchtmx[0][0]; + artsTag->data[1] = p->wpchtmx[0][1]; + artsTag->data[2] = p->wpchtmx[0][2]; + artsTag->data[3] = p->wpchtmx[1][0]; + artsTag->data[4] = p->wpchtmx[1][1]; + artsTag->data[5] = p->wpchtmx[1][2]; + artsTag->data[6] = p->wpchtmx[2][0]; + artsTag->data[7] = p->wpchtmx[2][1]; + artsTag->data[8] = p->wpchtmx[2][2]; + } + + /* If this is a Display profile, and we have been told to save it in */ + /* ICCV4 style, then set the media white point tag to D50 and save */ + /* the chromatic adapation matrix to the 'chad' tag. */ + { + icmXYZArray *whitePointTag; + icmS15Fixed16Array *chadTag; + + if (p->header->deviceClass == icSigDisplayClass + && p->useChad + && (whitePointTag = (icmXYZArray *)p->read_tag(p, icSigMediaWhitePointTag)) != NULL + && whitePointTag->ttype == icSigXYZType + && whitePointTag->size >= 1) { + + /* If we've set this profile, not just read it, */ + /* compute the fromAbs/chad matrix from media white point and cone matrix */ + if (!p->chadValid) { + double wp[3]; + p->chromAdaptMatrix(p, ICM_CAM_NONE, icmD50, whitePointTag->data[0], p->chadmx); + + /* Optimally quantize chad matrix to preserver white point */ + icmXYZ2Ary(wp, whitePointTag->data[0]); + quantize3x3S15Fixed16(icmD50_ary3, p->chadmx, wp); + } + + /* Make sure no 'chad' tag currently exists */ + if (p->delete_tag(p, icSigChromaticAdaptationTag) != 0 + && p->errc != 2) { + sprintf(p->err,"icc_write: Deleting existing 'chad' tag failed"); + return p->errc = 1; + } + + /* Add one */ + if ((chadTag = (icmS15Fixed16Array *)p->add_tag(p, icSigChromaticAdaptationTag, + icSigS15Fixed16ArrayType)) == NULL) { + sprintf(p->err,"icc_write: Adding 'chad' tag failed"); + return p->errc = 1; + } + chadTag->size = 9; + if ((rv = chadTag->allocate((icmBase *)chadTag) ) != 0) { + sprintf(p->err,"icc_write: Allocating 'chad' tag failed"); + return p->errc = 1; + } + + /* Save in ICC matrix order */ + chadTag->data[0] = p->chadmx[0][0]; + chadTag->data[1] = p->chadmx[0][1]; + chadTag->data[2] = p->chadmx[0][2]; + chadTag->data[3] = p->chadmx[1][0]; + chadTag->data[4] = p->chadmx[1][1]; + chadTag->data[5] = p->chadmx[1][2]; + chadTag->data[6] = p->chadmx[2][0]; + chadTag->data[7] = p->chadmx[2][1]; + chadTag->data[8] = p->chadmx[2][2]; + + /* Set the media white point to D50 */ + whitePointTag->data[0] = icmD50; + } + } /* Check that the right tags etc. are present for a legal ICC profile */ if ((rv = check_icc_legal(p)) != 0) { return rv; } - /* Compute the total size and tag element data offsets */ - if (p->header == NULL) { - sprintf(p->err,"icc_write: No header defined"); - return p->errc = 1; - } + for (i = 0; i < ALIGN_SIZE; i++) + pbuf[i] = 0; size = sat_add(size, p->header->get_size(p->header)); /* Assume header is aligned */ @@ -12201,6 +12266,7 @@ static int icc_write( /* Returns NULL if error - icc->errc will contain */ /* 2 on system error, */ /* 3 if unknown tag */ +/* 4 if duplicate tag */ /* NOTE: that we prevent tag duplication */ /* NOTE: to create a tag type icmSigUnknownType, set ttype to icmSigUnknownType, */ /* and set the actual tag type in icmSigUnknownType->uttype */ @@ -12250,7 +12316,7 @@ static icmBase *icc_add_tag( for (j = 0; j < p->count; j++) { if (p->data[j].sig == sig) { sprintf(p->err,"icc_add_tag: Already have tag '%s' in profile",tag2str(p->data[j].sig)); - p->errc = 1; + p->errc = 4; return NULL; } } @@ -12458,6 +12524,7 @@ static icmBase *icc_read_tag_ix( if (typetable[j].ttype == icMaxEnumType) { if (!alow_unk) { + sprintf(p->err,"icc_read_tag_ix: found unknown tag"); p->errc = 2; return NULL; } @@ -12631,7 +12698,7 @@ static int icc_unread_tag( /* Delete the tag, and free the underlying tag type, */ /* if this was the last reference to it. */ -/* Note this finds the first tag with a matching signature */ +/* Note this finds the first tag with a matching signature. */ /* Returns non-zero on error: */ /* tag not found - icc->errc will contain 2 */ static int icc_delete_tag_ix( @@ -13108,11 +13175,11 @@ static struct { ICC V2 Lab encoding should be used in all PCS encodings in a icSigLut16Type or icSigNamedColor2Type tag, and can be used - for Lab encoding in device spaces for these tags. + for device space Lab encoding for these tags. ICC V4 Lab encoding should be used in all PCS encodings in - all other situations, and can be used for Lab encoding in - device spaces for all other situtaions. + all other situations, and can be used for device space Lab encoding + for all other situtaions. [ Since the ICC spec. doesn't cover device spaces labeled as Lab, these are ripe for mis-matches between different implementations.] @@ -14426,40 +14493,59 @@ extern ICCLIB_API void icm1960UCS21964WUV(icmXYZNumber *w, double *out, double * } /* - - - - - - - - - - - - - - - - - - - - - - - - */ -/* NOTE :- that these values are for the 1931 standard observer */ +/* NOTE :- that these values are for the 1931 standard observer. */ +/* Since they are an arbitrary 4 decimal place accuracy, we round */ +/* them to be exactly the same as ICC header encoded values, */ +/* to avoid any slight discrepancy with PCS white from profiles. */ /* available D50 Illuminant */ icmXYZNumber icmD50 = { /* Profile illuminant - D50 */ - 0.9642, 1.0000, 0.8249 + RND_S15FIXED16(0.9642), + RND_S15FIXED16(1.0000), + RND_S15FIXED16(0.8249) }; icmXYZNumber icmD50_100 = { /* Profile illuminant - D50, scaled to 100 */ - 96.42, 100.00, 82.49 + RND_S15FIXED16(0.9642) * 100.0, + RND_S15FIXED16(1.0000) * 100.0, + RND_S15FIXED16(0.8249) * 100.0 }; double icmD50_ary3[3] = { /* Profile illuminant - D50 */ - 0.9642, 1.0000, 0.8249 + RND_S15FIXED16(0.9642), + RND_S15FIXED16(1.0000), + RND_S15FIXED16(0.8249) }; double icmD50_100_ary3[3] = { /* Profile illuminant - D50, scaled to 100 */ - 96.42, 100.00, 82.49 + RND_S15FIXED16(0.9642) * 100.0, + RND_S15FIXED16(1.0000) * 100.0, + RND_S15FIXED16(0.8249) * 100.0 }; /* available D65 Illuminant */ icmXYZNumber icmD65 = { /* Profile illuminant - D65 */ - 0.9505, 1.0000, 1.0890 + RND_S15FIXED16(0.9505), + RND_S15FIXED16(1.0000), + RND_S15FIXED16(1.0890) }; icmXYZNumber icmD65_100 = { /* Profile illuminant - D65, scaled to 100 */ - 95.05, 100.00, 108.90 + RND_S15FIXED16(0.9505) * 100.0, + RND_S15FIXED16(1.0000) * 100.0, + RND_S15FIXED16(1.0890) * 100.0 }; double icmD65_ary3[3] = { /* Profile illuminant - D65 */ - 0.9505, 1.0000, 1.0890 + RND_S15FIXED16(0.9505), + RND_S15FIXED16(1.0000), + RND_S15FIXED16(1.0890) }; double icmD65_100_ary3[3] = { /* Profile illuminant - D65, scaled to 100 */ - 95.05, 100.00, 108.90 + RND_S15FIXED16(0.9505) * 100.0, + RND_S15FIXED16(1.0000) * 100.0, + RND_S15FIXED16(1.0890) * 100.0 }; @@ -14468,6 +14554,20 @@ icmXYZNumber icmBlack = { 0.0000, 0.0000, 0.0000 }; +/* The Standard ("wrong Von-Kries") chromatic transform matrix */ +double icmWrongVonKries[3][3] = { + { 1.0000, 0.0000, 0.0000 }, + { 0.0000, 1.0000, 0.0000 }, + { 0.0000, 0.0000, 1.0000 } +}; + +/* The Bradford chromatic transform matrix */ +double icmBradford[3][3] = { + { RND_S15FIXED16( 0.8951), RND_S15FIXED16( 0.2664), RND_S15FIXED16(-0.1614) }, + { RND_S15FIXED16(-0.7502), RND_S15FIXED16( 1.7135), RND_S15FIXED16( 0.0367) }, + { RND_S15FIXED16( 0.0389), RND_S15FIXED16(-0.0685), RND_S15FIXED16( 1.0296) } +}; + /* Return the normal Delta E given two Lab values */ double icmLabDE(double *Lab0, double *Lab1) { double rv = 0.0, tt; @@ -14659,6 +14759,7 @@ double icmCIE2Ksq(double *Lab0, double *Lab1) { L = 0.5 * (Lab0[0] + Lab1[0]); C = 0.5 * (C1 + C2); + if (C1 < 1e-9 || C2 < 1e-9) { h = h1 + h2; } else { @@ -14671,22 +14772,25 @@ double icmCIE2Ksq(double *Lab0, double *Lab1) { } h *= 0.5; } + T = 1.0 - 0.17 * cos(DEG2RAD(h-30.0)) + 0.24 * cos(DEG2RAD(2.0 * h)) + 0.32 * cos(DEG2RAD(3.0 * h + 6.0)) - 0.2 * cos(DEG2RAD(4.0 * h - 63.0)); - hh = (h - 275.0)/25.0; - ddeg = 30.0 * exp(-hh * hh); - C7 = pow(C,7.0); - RC = 2.0 * sqrt(C7/(C7 + 6103515625.0)); L50sq = (L - 50.0) * (L - 50.0); + SL = 1.0 + (0.015 * L50sq)/sqrt(20.0 + L50sq); SC = 1.0 + 0.045 * C; SH = 1.0 + 0.015 * C * T; - RT = -sin(DEG2RAD(2 * ddeg)) * RC; dLsq = dL/SL; dCsq = dC/SC; dHsq = dH/SH; + hh = (h - 275.0)/25.0; + ddeg = 30.0 * exp(-hh * hh); + C7 = pow(C, 7.0); + RC = 2.0 * sqrt(C7/(C7 + 6103515625.0)); + RT = -sin(DEG2RAD(2 * ddeg)) * RC; + RCH = RT * dCsq * dHsq; dLsq *= dLsq; @@ -14719,35 +14823,23 @@ ICCLIB_API double icmXYZCIE2K(icmXYZNumber *w, double *in0, double *in1) { /* - - - - - - - - - - - - - - - - - - - - - - - - */ -/* Chromatic adaptation transform utility */ +/* Independent chromatic adaptation transform utility. */ /* Return a 3x3 chromatic adaptation matrix */ /* Use icmMulBy3x3(dst, mat, src) */ /* NOTE that to transform primaries they */ /* must be mat[XYZ][RGB] format! */ void icmChromAdaptMatrix( - int flags, /* Use Bradford, Transform given matrix flags */ + int flags, /* Use Bradford flag, Transform given matrix flag */ icmXYZNumber d_wp, /* Destination white point */ icmXYZNumber s_wp, /* Source white point */ double mat[3][3] /* Destination matrix */ ) { double dst[3], src[3]; /* Source & destination white points */ double vkmat[3][3]; /* Von Kries matrix */ -#ifdef NEVER - static double bradford[3][3] = { /* Linear cone space matrix */ - { 1.0, 0.0, 0.0 }, - { 0.0, 1.0, 0.0 }, - { 0.0, 0.0, 1.0 } - }; -#endif /* NEVER */ - static double bradford[3][3] = { /* Bradford cone space matrix */ - { 0.8951, 0.2664, -0.1614 }, - { -0.7502, 1.7135, 0.0367 }, - { 0.0389, -0.0685, 1.0296 } - }; static int inited = 0; /* Compute inverse bradford once */ static double ibradford[3][3]; /* Inverse Bradford */ - /* Set initial matrix to unity */ + /* Set initial matrix to unity if creating from scratch */ if (!(flags & ICM_CAM_MULMATRIX)) { icmSetUnity3x3(mat); } @@ -14756,8 +14848,8 @@ void icmChromAdaptMatrix( icmXYZ2Ary(dst, d_wp); if (flags & ICM_CAM_BRADFORD) { - icmMulBy3x3(src, bradford, src); - icmMulBy3x3(dst, bradford, dst); + icmMulBy3x3(src, icmBradford, src); + icmMulBy3x3(dst, icmBradford, dst); } /* Setup the Von Kries white point adaptation matrix */ @@ -14770,7 +14862,7 @@ void icmChromAdaptMatrix( /* Transform to Bradford space if requested */ if (flags & ICM_CAM_BRADFORD) { - icmMul3x3(mat, bradford); + icmMul3x3(mat, icmBradford); } /* Apply chromatic adaptation */ @@ -14779,7 +14871,7 @@ void icmChromAdaptMatrix( /* Transform from Bradford space */ if (flags & ICM_CAM_BRADFORD) { if (inited == 0) { - icmInverse3x3(ibradford, bradford); + icmInverse3x3(ibradford, icmBradford); inited = 1; } icmMul3x3(mat, ibradford); @@ -14788,68 +14880,237 @@ void icmChromAdaptMatrix( /* We're done */ } +/* Setup the wpchtmx appropriately for creating profile */ +static void icc_setup_wpchtmx(icc *p) { + int useBradford = 1; /* Default use Bradford */ + + if (!p->autoWpchtmx) + return; /* Reading profile has set wpchtmx[][] */ + + /* If we should use ICC standard Wrong Von Kries for white point chromatic adapation */ + if (p->header->deviceClass == icSigOutputClass + && p->useLinWpchtmx) { + useBradford = 0; + } + + if (useBradford) { + icmCpy3x3(p->wpchtmx, icmBradford); + icmInverse3x3(p->iwpchtmx, p->wpchtmx); + } else { + icmCpy3x3(p->wpchtmx, icmWrongVonKries); + icmCpy3x3(p->iwpchtmx, icmWrongVonKries); + } + + /* This is set for this profile class now */ + p->wpchtmx_class = p->header->deviceClass; +} + +/* icc Chromatic adaptation transform utility using */ +/* the current Absolute to Media Relative Transformation Space wpchtmx. */ +/* Return a 3x3 chromatic adaptation matrix */ +/* Use icmMulBy3x3(dst, mat, src) */ +/* NOTE that to transform primaries they */ +/* must be mat[XYZ][RGB] format! */ +/* NOTE that this resets the chadValid flag (i.e. we assume that if */ +/* this method gets called, that we are discarding any 'chad' tag */ +/* and creating our own chromatic adapation) */ +static void icc_chromAdaptMatrix( + icc *p, + int flags, /* Transform given matrix flag */ + icmXYZNumber d_wp, /* Destination white point */ + icmXYZNumber s_wp, /* Source white point */ + double mat[3][3] /* Destination matrix */ +) { + double dst[3], src[3]; /* Source & destination white points */ + double vkmat[3][3]; /* Von Kries matrix */ + + if (p->header->deviceClass == icMaxEnumClass) { + fprintf(stderr,"icc_chromAdaptMatrix called with no deviceClass!\n"); + } + + /* See if the profile type has changed, re-evaluate wpchtmx */ + if (p->wpchtmx_class != p->header->deviceClass) { + icc_setup_wpchtmx(p); + } + + /* Set initial matrix to unity if creating from scratch */ + if (!(flags & ICM_CAM_MULMATRIX)) { + icmSetUnity3x3(mat); + } + + /* Take a copy of src/dst */ + icmXYZ2Ary(src, s_wp); + icmXYZ2Ary(dst, d_wp); + + /* Transform src/dst to cone space */ + icmMulBy3x3(src, p->wpchtmx, src); + icmMulBy3x3(dst, p->wpchtmx, dst); + + /* Transform incoming matrix cone space */ + icmMul3x3(mat, p->wpchtmx); + + /* Setup the Von Kries white point adaptation matrix */ + vkmat[0][0] = dst[0]/src[0]; + vkmat[1][1] = dst[1]/src[1]; + vkmat[2][2] = dst[2]/src[2]; + vkmat[0][1] = vkmat[0][2] = 0.0; + vkmat[1][0] = vkmat[1][2] = 0.0; + vkmat[2][0] = vkmat[2][1] = 0.0; + + /* Apply chromatic adaptation */ + icmMul3x3(mat, vkmat); + + /* Transform from con space */ + icmMul3x3(mat, p->iwpchtmx); + + p->chadValid = 0; /* Don't use this now */ + + /* We're done */ +} + /* - - - - - - - - - - - - - - - - - - - - - - - - */ -/* RGB primaries device to RGB->XYZ transform matrix. */ +/* RGB XYZ primaries device to RGB->XYZ transform matrix. */ /* We assume that the device is perfectly additive, but that */ /* there may be a scale factor applied to the channels to */ /* match the white point at RGB = 1. */ - +/* Use icmMulBy3x3(dst, mat, src) */ /* Return non-zero if matrix would be singular */ -int icmRGBprim2matrix( - icmXYZNumber white, /* White point */ - icmXYZNumber red, /* Red colorant */ - icmXYZNumber green, /* Green colorant */ - icmXYZNumber blue, /* Blue colorant */ - double mat[3][3] /* Destination matrix[RGB][XYZ] */ +int icmRGBXYZprim2matrix( + double red[3], /* Red colorant */ + double green[3], /* Green colorant */ + double blue[3], /* Blue colorant */ + double white[3], /* White point */ + double mat[3][3] /* Destination matrix[RGB][XYZ] */ ) { double tmat[3][3]; double t[3]; /* Assemble the colorants into a matrix */ - tmat[0][0] = red.X; - tmat[0][1] = green.X; - tmat[0][2] = blue.X; - tmat[1][0] = red.Y; - tmat[1][1] = green.Y; - tmat[1][2] = blue.Y; - tmat[2][0] = red.Z; - tmat[2][1] = green.Z; - tmat[2][2] = blue.Z; + tmat[0][0] = red[0]; + tmat[0][1] = green[0]; + tmat[0][2] = blue[0]; + tmat[1][0] = red[1]; + tmat[1][1] = green[1]; + tmat[1][2] = blue[1]; + tmat[2][0] = red[2]; + tmat[2][1] = green[2]; + tmat[2][2] = blue[2]; /* Compute the inverse */ if (icmInverse3x3(mat, tmat)) return 1; /* Compute scale vector that maps colorants to white point */ - t[0] = mat[0][0] * white.X - + mat[0][1] * white.Y - + mat[0][2] * white.Z; - t[1] = mat[1][0] * white.X - + mat[1][1] * white.Y - + mat[1][2] * white.Z; - t[2] = mat[2][0] * white.X - + mat[2][1] * white.Y - + mat[2][2] * white.Z; + t[0] = mat[0][0] * white[0] + + mat[0][1] * white[1] + + mat[0][2] * white[2]; + t[1] = mat[1][0] * white[0] + + mat[1][1] * white[1] + + mat[1][2] * white[2]; + t[2] = mat[2][0] * white[0] + + mat[2][1] * white[1] + + mat[2][2] * white[2]; /* Now formulate the transform matrix */ - mat[0][0] = red.X * t[0]; - mat[1][0] = green.X * t[1]; - mat[2][0] = blue.X * t[2]; - mat[0][1] = red.Y * t[0]; - mat[1][1] = green.Y * t[1]; - mat[2][1] = blue.Y * t[2]; - mat[0][2] = red.Z * t[0]; - mat[1][2] = green.Z * t[1]; - mat[2][2] = blue.Z * t[2]; + mat[0][0] = red[0] * t[0]; + mat[0][1] = green[0] * t[1]; + mat[0][2] = blue[0] * t[2]; + mat[1][0] = red[1] * t[0]; + mat[1][1] = green[1] * t[1]; + mat[1][2] = blue[1] * t[2]; + mat[2][0] = red[2] * t[0]; + mat[2][1] = green[2] * t[1]; + mat[2][2] = blue[2] * t[2]; return 0; } +/* RGB Yxy primaries to device to RGB->XYZ transform matrix */ +/* Return non-zero if matrix would be singular */ +/* Use icmMulBy3x3(dst, mat, src) */ +int icmRGBYxyprim2matrix( + double red[3], /* Red colorant */ + double green[3], /* Green colorant */ + double blue[3], /* Blue colorant */ + double white[3], /* White point */ + double mat[3][3], /* Return matrix[RGB][XYZ] */ + double wXYZ[3] /* Return white XYZ */ +) { + double r[3], g[3], b[3]; + + icmYxy2XYZ(r, red); + icmYxy2XYZ(g, green); + icmYxy2XYZ(b, blue); + icmYxy2XYZ(wXYZ, white); + + return icmRGBXYZprim2matrix(r, g, b, wXYZ, mat); +} + /* - - - - - - - - - - - - - - - - - - - - - - - - */ +/* Pre-round a 3x3 matrix to ensure that the product of */ +/* the matrix and the input value is the same as */ +/* the quantized matrix product. This is used to improve accuracy */ +/* of 'chad' tag in computing absolute white point. */ +void quantize3x3S15Fixed16( + double targ[3], /* Target of product */ + double mat[3][3], /* matrix[][] to be quantized */ + double in[3] /* Input of product - must not be 0.0! */ +) { + int i, j; + double sum[3]; /* == target */ + double tmp[3]; /* Uncorrected sum */ + + printf("In = %.8f %.8f %.8f\n",in[0], in[1], in[2]); + printf("Target = %.8f %.8f %.8f\n",targ[0], targ[1], targ[2]); + + for (j = 0; j < 3; j++) + sum[j] = targ[j]; + + /* Pre-quantize the matrix, and then ensure that the */ + /* sum of the product of the quantized values is the quantized */ + /* sum by assigning the rounding error to the largest component. */ + for (i = 0; i < 3; i++) { + int bix = 0; + double bval = -1e9; + + /* locate the largest and quantize each matrix component */ + for (j = 0; j < 3; j++) { + if (fabs(mat[i][j]) > bval) { /* Locate largest */ + bix = j; + bval = fabs(mat[i][j]); + } + mat[i][j] = round_S15Fixed16Number(mat[i][j]); + } + + /* Check the product of the uncorrected quantized values */ + tmp[i] = 0.0; + for (j = 0; j < 3; j++) + tmp[i] += mat[i][j] * in[j]; + + /* Compute the value the largest has to be */ + /* to ensure that sum of the quantized mat[][] times in[] is */ + /* equal to the quantized sum. */ + for (j = 0; j < 3; j++) { + if (j == bix) + continue; + sum[i] -= mat[i][j] * in[j]; + } + mat[i][bix] = round_S15Fixed16Number(sum[i]/in[i]); + + /* Check the product of the corrected quantized values */ + sum[i] = 0.0; + for (j = 0; j < 3; j++) + sum[i] += mat[i][j] * in[j]; + } + printf("Q Sum = %.8f %.8f %.8f\n",tmp[0], tmp[1], tmp[2]); + printf("Q cor Sum = %.8f %.8f %.8f\n",sum[0], sum[1], sum[2]); +} + /* Pre-round RGB device primary values to ensure that */ /* the sum of the quantized primaries is the same as */ /* the quantized sum. */ +/* [Note matrix is transposed compared to quantize3x3S15Fixed16() ] */ void quantizeRGBprimsS15Fixed16( double mat[3][3] /* matrix[RGB][XYZ] */ ) { @@ -14897,7 +15158,7 @@ void quantizeRGBprimsS15Fixed16( // for (j = 0; j < 3; j++) // sum[i] += mat[j][i]; } -// printf("Q Sum = %f %f %f\n",sum[0], sum[1], sum[2]); +// printf("Q cor Sum = %f %f %f\n",sum[0], sum[1], sum[2]); } /* - - - - - - - - - - - - - - - - - - - - - - - - */ @@ -15062,19 +15323,20 @@ void icmRec601_YPbPr_2_RGBd(double out[3], double in[3]) { /* Convert Rec709 1150/60/2:1 RGB' into YPbPr, or "full range YCbCr" */ /* where input 0..1, output 0..1, -0.5 .. 0.5, -0.5 .. 0.5 */ +/* (This is for digital Rec709 and is very close to analog Rec709 60Hz.) */ /* [From the Rec709 specification] */ void icmRec709_RGBd_2_YPbPr(double out[3], double in[3]) { double tt[3]; tt[0] = 0.2126 * in[0] + 0.7152 * in[1] + 0.0722 * in[2]; - tt[1] = 0.5389 * -0.2126 * in[0] - + 0.5389 * -0.7152 * in[1] - + 0.5389 * (1.0-0.0722) * in[2]; + tt[1] = 1.0/1.8556 * -0.2126 * in[0] + + 1.0/1.8556 * -0.7152 * in[1] + + 1.0/1.8556 * (1.0-0.0722) * in[2]; - tt[2] = 0.6350 * (1.0-0.2126) * in[0] - + 0.6350 * -0.7152 * in[1] - + 0.6350 * -0.0722 * in[2]; + tt[2] = 1.0/1.5748 * (1.0-0.2126) * in[0] + + 1.0/1.5748 * -0.7152 * in[1] + + 1.0/1.5748 * -0.0722 * in[2]; out[0] = tt[0]; out[1] = tt[1]; @@ -15083,13 +15345,14 @@ void icmRec709_RGBd_2_YPbPr(double out[3], double in[3]) { /* Convert Rec709 1150/60/2:1 YPbPr to RGB' (== "full range YCbCr") */ /* where input 0..1, -0.5 .. 0.5, -0.5 .. 0.5, output 0.0 .. 1 */ +/* (This is for digital Rec709 and is very close to analog Rec709 60Hz.) */ /* [Inverse of above] */ void icmRec709_YPbPr_2_RGBd(double out[3], double in[3]) { double tt[3]; - tt[0] = 1.000000000 * in[0] + 0.000000000 * in[1] + 1.574803150 * in[2]; - tt[1] = 1.000000000 * in[0] + -0.187327487 * in[1] + -0.468125209 * in[2]; - tt[2] = 1.000000000 * in[0] + 1.855631843 * in[1] + 0.000000000 * in[2]; + tt[0] = 1.000000000 * in[0] + 0.000000000 * in[1] + 1.574800000 * in[2]; + tt[1] = 1.000000000 * in[0] + -0.187324273 * in[1] + -0.468124273 * in[2]; + tt[2] = 1.000000000 * in[0] + 1.855600000 * in[1] + 0.000000000 * in[2]; out[0] = tt[0]; out[1] = tt[1]; @@ -15098,19 +15361,20 @@ void icmRec709_YPbPr_2_RGBd(double out[3], double in[3]) { /* Convert Rec709 1250/50/2:1 RGB' into YPbPr, or "full range YCbCr" */ /* where input 0..1, output 0..1, -0.5 .. 0.5, -0.5 .. 0.5 */ +/* (This is for analog Rec709 50Hz) */ /* [From the Rec709 specification] */ void icmRec709_50_RGBd_2_YPbPr(double out[3], double in[3]) { double tt[3]; tt[0] = 0.299 * in[0] + 0.587 * in[1] + 0.114 * in[2]; - tt[1] = 0.564 * -0.299 * in[0] - + 0.564 * -0.587 * in[1] + tt[1] = 0.564 * -0.299 * in[0] + + 0.564 * -0.587 * in[1] + 0.564 * (1.0-0.114) * in[2]; tt[2] = 0.713 * (1.0-0.299) * in[0] - + 0.713 * -0.587 * in[1] - + 0.713 * -0.114 * in[2]; + + 0.713 * -0.587 * in[1] + + 0.713 * -0.114 * in[2]; out[0] = tt[0]; out[1] = tt[1]; @@ -15119,6 +15383,7 @@ void icmRec709_50_RGBd_2_YPbPr(double out[3], double in[3]) { /* Convert Rec709 1250/50/2:1 YPbPr to RGB' (== "full range YCbCr") */ /* where input 0..1, -0.5 .. 0.5, -0.5 .. 0.5, output 0.0 .. 1 */ +/* (This is for analog Rec709 50Hz) */ /* [Inverse of above] */ void icmRec709_50_YPbPr_2_RGBd(double out[3], double in[3]) { double tt[3]; @@ -15141,13 +15406,13 @@ void icmRec2020_NCL_RGBd_2_YPbPr(double out[3], double in[3]) { tt[0] = 0.2627 * in[0] + 0.6780 * in[1] + 0.0593 * in[2]; - tt[1] = 1/1.8814 * -0.2627 * in[0] - + 1/1.8814 * -0.6780 * in[1] + tt[1] = 1/1.8814 * -0.2627 * in[0] + + 1/1.8814 * -0.6780 * in[1] + 1/1.8814 * (1.0-0.0593) * in[2]; tt[2] = 1/1.4746 * (1.0-0.2627) * in[0] - + 1/1.4746 * -0.6780 * in[1] - + 1/1.4746 * -0.0593 * in[2]; + + 1/1.4746 * -0.6780 * in[1] + + 1/1.4746 * -0.0593 * in[2]; out[0] = tt[0]; out[1] = tt[1]; @@ -15913,12 +16178,44 @@ struct _icmLuBase *lup lup->blackisassumed = 0; /* The black is from the tag */ } - /* Create absolute <-> relative conversion matricies */ - icmChromAdaptMatrix(ICM_CAM_BRADFORD, lup->whitePoint, icmD50, lup->toAbs); - icmChromAdaptMatrix(ICM_CAM_BRADFORD, icmD50, lup->whitePoint, lup->fromAbs); - DBLLL(("toAbs and fromAbs created from wp %f %f %f and D50 %f %f %f\n", lup->whitePoint.X, lup->whitePoint.Y, lup->whitePoint.Z, icmD50.X, icmD50.Y, icmD50.Z)); - DBLLL(("toAbs = %f %f %f\n %f %f %f\n %f %f %f\n", lup->toAbs[0][0], lup->toAbs[0][1], lup->toAbs[0][2], lup->toAbs[1][0], lup->toAbs[1][1], lup->toAbs[1][2], lup->toAbs[2][0], lup->toAbs[2][1], lup->toAbs[2][2])); - DBLLL(("fromAbs = %f %f %f\n %f %f %f\n %f %f %f\n", lup->fromAbs[0][0], lup->fromAbs[0][1], lup->fromAbs[0][2], lup->fromAbs[1][0], lup->fromAbs[1][1], lup->fromAbs[1][2], lup->fromAbs[2][0], lup->fromAbs[2][1], lup->fromAbs[2][2])); + /* If this is a Display profile, check if there is a 'chad' tag, and setup the */ + /* white point and toAbs/fromAbs matricies from that, so as to implement an */ + /* effective Absolute Colorimetric intent for such profiles. */ + if (p->header->deviceClass == icSigDisplayClass + && p->chadValid) { + double wp[3]; + + icmCpy3x3(lup->fromAbs, p->chadmx); + icmInverse3x3(lup->toAbs, lup->fromAbs); + + /* Compute absolute white point. We deliberately ignore what's in the white point tag */ + /* and assume D50, since dealing with a non-D50 white point tag is contrary to ICCV4 */ + /* and full of ambiguity (i.e. is it a separate "media" white different to the */ + /* display white and not D50, or has the profile creator mistakenly put the display */ + /* white in the white point tag ?) */ + icmMulBy3x3(wp, lup->toAbs, icmD50_ary3); + icmAry2XYZ(lup->whitePoint, wp); + + DBLLL(("toAbs and fromAbs created from 'chad' tag\n")); + DBLLL(("computed wp %.8f %.8f %.8f\n", lup->whitePoint.X, + lup->whitePoint.Y, lup->whitePoint.Z)); + + } else { + /* Create absolute <-> relative conversion matricies */ + p->chromAdaptMatrix(p, ICM_CAM_NONE, lup->whitePoint, icmD50, lup->toAbs); + p->chromAdaptMatrix(p, ICM_CAM_NONE, icmD50, lup->whitePoint, lup->fromAbs); + DBLLL(("toAbs and fromAbs created from wp %f %f %f and D50 %f %f %f\n", lup->whitePoint.X, + lup->whitePoint.Y, lup->whitePoint.Z, icmD50.X, icmD50.Y, icmD50.Z)); + } + + DBLLL(("toAbs = %f %f %f\n %f %f %f\n %f %f %f\n", + lup->toAbs[0][0], lup->toAbs[0][1], lup->toAbs[0][2], + lup->toAbs[1][0], lup->toAbs[1][1], lup->toAbs[1][2], + lup->toAbs[2][0], lup->toAbs[2][1], lup->toAbs[2][2])); + DBLLL(("fromAbs = %f %f %f\n %f %f %f\n %f %f %f\n", + lup->fromAbs[0][0], lup->fromAbs[0][1], lup->fromAbs[0][2], + lup->fromAbs[1][0], lup->fromAbs[1][1], lup->fromAbs[1][2], + lup->fromAbs[2][0], lup->fromAbs[2][1], lup->fromAbs[2][2])); return 0; } @@ -16925,6 +17222,8 @@ static int icmLuLut_in_abs(icmLuLut *p, double *out, double *in) { /* If Bwd Lut, take care of Absolute color space and effective input space */ if ((p->function == icmBwd || p->function == icmGamut || p->function == icmPreview) + && (p->e_inSpace == icSigLabData + || p->e_inSpace == icSigXYZData) && (p->intent == icAbsoluteColorimetric || p->intent == icmAbsolutePerceptual || p->intent == icmAbsoluteSaturation)) { @@ -17022,6 +17321,8 @@ static int icmLuLut_out_abs(icmLuLut *p, double *out, double *in) { /* If Fwd Lut, take care of Absolute color space */ /* and convert from native to effective out PCS */ if ((p->function == icmFwd || p->function == icmPreview) + && (p->outSpace == icSigLabData + || p->outSpace == icSigXYZData) && (p->intent == icAbsoluteColorimetric || p->intent == icmAbsolutePerceptual || p->intent == icmAbsoluteSaturation)) { @@ -17253,6 +17554,8 @@ static int icmLuLut_inv_out_abs(icmLuLut *p, double *out, double *in) { /* and convert from effective to native inverse output PCS */ /* OutSpace must be PCS: XYZ or Lab */ if ((p->function == icmFwd || p->function == icmPreview) + && (p->e_outSpace == icSigLabData + || p->e_outSpace == icSigXYZData) && (p->intent == icAbsoluteColorimetric || p->intent == icmAbsolutePerceptual || p->intent == icmAbsoluteSaturation)) { @@ -17385,6 +17688,8 @@ static int icmLuLut_inv_in_abs(icmLuLut *p, double *out, double *in) { /* If Bwd Lut, take care of Absolute color space, and */ /* convert from native to effective input space */ if ((p->function == icmBwd || p->function == icmGamut || p->function == icmPreview) + && (p->inSpace == icSigLabData + || p->inSpace == icSigXYZData) && (p->intent == icAbsoluteColorimetric || p->intent == icmAbsolutePerceptual || p->intent == icmAbsoluteSaturation)) { @@ -17667,9 +17972,6 @@ icc_new_icmLuLut( return NULL; } -// ~~~999 -#ifndef NEVER - /* Standard code */ /* Determine appropriate clut lookup algorithm */ { int use_sx; /* -1 = undecided, 0 = N-linear, 1 = Simplex lookup */ @@ -17795,64 +18097,6 @@ icc_new_icmLuLut( p->lut->tune_value = icmLut_tune_value_nl; } } -#else /* Development code */ - /* Determine appropriate clut lookup algorithm, */ - /* and set optimised simplex tables */ - { - int lualg = 0; /* 0 = simplex, 1 = multi-linear, 2 = optimised simlpex */ - icColorSpaceSignature ins, outs; /* In and out Lut color spaces */ - int inn, outn; /* in and out number of Lut components */ - - p->lutspaces((icmLuBase *)p, &ins, &inn, &outs, &outn, NULL); - - /* Determine which type of Lut lookup algorithm is likely to give */ - /* minimal interpolation errors. */ - /* To use the optimised simplex, we should ideally determine */ - /* the simplex cell orientation that makes the simplex split diagonal */ - /* always point towards the white or black points. */ - switch(ins) { - - case icSigXYZData: /* This seems to be appropriate ? */ - case icSigRgbData: - case icSigGrayData: - case icSigCmykData: - case icSigCmyData: - case icSigMch6Data: - lualg = 0; /* Simplex interpolation is appropriate */ - break; - - case icSigLabData: -// ~~~~9999 this isn't right! need to lookup Lab 50,0,0 through input curves then */ -/* quantize to clut nodes to figure threshold for axis flips */ - p->lut->finfo[0].fth = 0.5; p->lut->finfo[0].bthff = 0; p->lut->finfo[0].athff = 1; - p->lut->finfo[1].fth = 0.5; p->lut->finfo[1].bthff = 1; p->lut->finfo[1].athff = 0; - p->lut->finfo[2].fth = 0.5; p->lut->finfo[2].bthff = 1; p->lut->finfo[2].athff = 0; - lualg = 2; - break; - - /* !!! Should switch to optimised simplex for these too !!! */ - case icSigLuvData: - case icSigYCbCrData: - case icSigYxyData: - case icSigHlsData: - case icSigHsvData: - lualg = 1; /* Multi-linear is best as a default for these ? */ - break; - - default: - lualg = 0; /* Simplex is best if we known nothing. */ - break; - } - - if (lualg == 2) { - p->lookup_clut = icmLut_lookup_clut_osx; - } else if (lualg == 1) { - p->lookup_clut = p->lut->lookup_clut_nl; - } else { - p->lookup_clut = p->lut->lookup_clut_sx; - } - } -#endif return (icmLuBase *)p; } @@ -18591,6 +18835,7 @@ icmAlloc *al /* Memory allocator */ p->get_tac = icm_get_tac; p->get_luobj = icc_get_luobj; p->new_clutluobj = icc_new_icmLuLut; + p->chromAdaptMatrix = icc_chromAdaptMatrix; #if defined(__IBMC__) && defined(_M_IX86) _control87(EM_UNDERFLOW, EM_UNDERFLOW); @@ -18609,10 +18854,10 @@ icmAlloc *al /* Memory allocator */ p->header->renderingIntent = icMaxEnumIntent; /* Rendering intent - must be set ! */ /* Values that should be set before writing */ - p->header->manufacturer = -1; /* Dev manufacturer - should be set ! */ - p->header->model = -1; /* Dev model number - should be set ! */ - p->header->attributes.l = 0; /* ICC Device attributes - should set ! */ - p->header->flags = 0; /* Embedding flags - should be set ! */ + p->header->manufacturer = icmSigUnknownType;/* Dev manufacturer - should be set ! */ + p->header->model = icmSigUnknownType; /* Dev model number - should be set ! */ + p->header->attributes.l = 0; /* ICC Device attributes - should set ! */ + p->header->flags = 0; /* Embedding flags - should be set ! */ /* Values that may be set before writing */ p->header->attributes.h = 0; /* Dev Device attributes - may be set ! */ @@ -18624,13 +18869,53 @@ icmAlloc *al /* Memory allocator */ p->header->minv = 2; p->header->bfv = 0; setcur_DateTimeNumber(&p->header->date);/* Creation Date */ +#ifdef NT p->header->platform = icSigMicrosoft; /* Primary Platform */ +#endif +#ifdef __APPLE__ + p->header->platform = icSigMacintosh; +#endif +#if defined(UNIX) && !defined(__APPLE__) + p->header->platform = icmSig_nix; +#endif p->header->illuminant = icmD50; /* Profile illuminant - D50 */ /* Values that will be created automatically */ for (i = 0; i < 16; i++) p->header->id[i] = 0; + p->autoWpchtmx = 1; /* Auto on create */ + + /* Should we use ICC standard Wrong Von Kries for */ + /* white point chromatic adapation for output class ? */ + if (getenv("ARGYLL_CREATE_WRONG_VON_KRIES_OUTPUT_CLASS_REL_WP") != NULL) + p->useLinWpchtmx = 1; /* Use Wrong Von Kries */ + else + p->useLinWpchtmx = 0; /* Use Bradford by default */ + p->wpchtmx_class = icMaxEnumClass; /* Not set yet */ + + /* Default to saving ArgyllCMS private 'arts' tag (if appropriate type of */ + /* profile) to make white point chromatic adapation explicit. */ + p->useArts = 1; + + /* Should we create a V4 style Display profile with D50 media white point */ + /* tag and 'chad' tag ? */ + if (getenv("ARGYLL_CREATE_DISPLAY_PROFILE_WITH_CHAD") != NULL) + p->useChad = 1; /* Mark Media WP as D50 and put absolute to relative */ + /* transform matrix in 'chad' tag. */ + else + p->useChad = 0; /* No by default - use Bradford and store real Media WP */ + + /* Set a default wpchtmx in case the profile being read or written */ + /* doesn't use a white point (i.e., it's a device link) */ + if (!p->useLinWpchtmx) { + icmCpy3x3(p->wpchtmx, icmBradford); + icmInverse3x3(p->iwpchtmx, p->wpchtmx); + } else { + icmCpy3x3(p->wpchtmx, icmWrongVonKries); + icmCpy3x3(p->iwpchtmx, icmWrongVonKries); + } + return p; } @@ -18677,7 +18962,7 @@ char *icmPdv(int di, double *p) { for (e = 0; e < di; e++) { if (e > 0) *bp++ = ' '; - sprintf(bp, "%f", p[e]); bp += strlen(bp); + sprintf(bp, "%.8f", p[e]); bp += strlen(bp); } return buf[ix]; } @@ -18700,7 +18985,7 @@ char *icmPfv(int di, float *p) { for (e = 0; e < di; e++) { if (e > 0) *bp++ = ' '; - sprintf(bp, "%f", p[e]); bp += strlen(bp); + sprintf(bp, "%.8f", p[e]); bp += strlen(bp); } return buf[ix]; } diff --git a/icc/icc.h b/icc/icc.h index ba66581..8f90d26 100644 --- a/icc/icc.h +++ b/icc/icc.h @@ -30,8 +30,8 @@ /* Version of icclib release */ -#define ICCLIB_VERSION 0x020017 -#define ICCLIB_VERSION_STR "2.17" +#define ICCLIB_VERSION 0x020020 +#define ICCLIB_VERSION_STR "2.20" #undef ENABLE_V4 /* V4 is not fully implemented */ @@ -61,19 +61,22 @@ # define ICCLIB_API /* empty */ #endif +#if UINT_MAX < 0xffffffff +# error "icclib: integer size is too small, must be at least 32 bit" +#endif + /* =========================================================== */ /* Platform specific primitive defines. */ /* This really needs checking for each different platform. */ /* Using C99 and MSC covers a lot of cases, */ /* and the fallback default is pretty reliable with modern compilers and machines. */ +/* Note that MSWin is LLP64 == 32 bit long, while OS X/Linux is LP64 == 64 bit long. */ +/* so long shouldn't really be used in any code.... */ +/* (duplicated in icc.h) */ -/* Note that the code assume that int is at least 32 bits, */ -/* and avoid using long as it is uncertain whether this is */ -/* the same size as an int or larger, opening the scope */ -/* for oveflow errors. */ - -#if UINT_MAX < 0xffffffff -# error "icclib: integer size is too small, must be at least 32 bit" +/* Use __LP64__ as cross platform 64 bit pointer #define */ +#if !defined(__LP64__) && defined(_WIN64) +# define __LP64__ 1 #endif #ifndef ORD32 /* If not defined elsewhere */ @@ -93,13 +96,15 @@ #define PNTR intptr_t -/* printf format precision specifier */ -#define PF64PREC "ll" +#define PF64PREC "ll" /* printf format precision specifier */ +#define CF64PREC "LL" /* Constant precision specifier */ -/* Constant precision specifier */ -#define CF64PREC "LL" +#ifndef ATTRIBUTE_NORETURN +# define ATTRIBUTE_NORETURN __declspec(noreturn) +#endif #else /* !__STDC_VERSION__ */ + #ifdef _MSC_VER #define INR8 __int8 /* 8 bit signed */ @@ -115,16 +120,17 @@ #define vsnprintf _vsnprintf -/* printf format precision specifier */ -#define PF64PREC "I64" +#define PF64PREC "I64" /* printf format precision specifier */ +#define CF64PREC "LL" /* Constant precision specifier */ -/* Constant precision specifier */ -#define CF64PREC "LL" +#ifndef ATTRIBUTE_NORETURN +# define ATTRIBUTE_NORETURN __declspec(noreturn) +#endif #else /* !_MSC_VER */ /* The following works on a lot of modern systems, including */ -/* LP64 model 64 bit modes */ +/* LLP64 and LP64 models, but won't work with ILP64 which needs int32 */ #define INR8 signed char /* 8 bit signed */ #define INR16 signed short /* 16 bit signed */ @@ -134,19 +140,28 @@ #define ORD32 unsigned int /* 32 bit unsigned */ #ifdef __GNUC__ -#define INR64 long long /* 64 bit signed - not used in icclib */ -#define ORD64 unsigned long long /* 64 bit unsigned - not used in icclib */ +# ifdef __LP64__ /* long long could be 128 bit */ +# define INR64 long /* 64 bit signed - not used in icclib */ +# define ORD64 unsigned long /* 64 bit unsigned - not used in icclib */ +# define PF64PREC "l" /* printf format precision specifier */ +# define CF64PREC "L" /* Constant precision specifier */ +# else +# define INR64 long long /* 64 bit signed - not used in icclib */ +# define ORD64 unsigned long long /* 64 bit unsigned - not used in icclib */ +# define PF64PREC "ll" /* printf format precision specifier */ +# define CF64PREC "LL" /* Constant precision specifier */ +# endif /* !__LP64__ */ +#endif /* __GNUC__ */ -/* printf format precision specifier */ -#define PF64PREC "ll" +#define PNTR unsigned long +#ifndef ATTRIBUTE_NORETURN +# define ATTRIBUTE_NORETURN __attribute__((noreturn)) #endif -#define PNTR unsigned long - #endif /* !_MSC_VER */ #endif /* !__STDC_VERSION__ */ -#endif /* !defined(ORD32) */ +#endif /* !ORD32 */ /* =========================================================== */ #include "iccV42.h" /* ICC Version 4.2 definitions. */ @@ -321,6 +336,15 @@ icmFile *new_icmFileMem_d(void *base, size_t length); typedef int icmSig; /* Otherwise un-enumerated 4 byte signature */ +/* ArgyllCMS Private tagSignature: */ +/* Absolute to Media Relative Transformation Space matrix. */ +/* Uses the icSigS15Fixed16ArrayType */ +/* (Unit matrix for default ICC, Bradford matrix for Argll default) */ +#define icmSigAbsToRelTransSpace ((icTagSignature) icmMakeTag('a','r','t','s')) + +/* Non-standard Platform Signature for Linux and similiar */ +#define icmSig_nix ((icPlatformSignature) icmMakeTag('*','n','i','x')) + /* Non-standard Color Space Signatures - will be incompatible outside icclib! */ /* A monochrome CIE L* space */ @@ -353,10 +377,6 @@ typedef int icmSig; /* Otherwise un-enumerated 4 byte signature */ /* Pseudo PCS colospace to signal V4 16 bit L */ #define icmSigLV4Data ((icColorSpaceSignature) icmMakeTag('L',' ',' ','4')) -/* Non-standard Platform Signature */ -#define icmSig_nix ((icPlatformSignature) icmMakeTag('*','n','i','x')) - - /* Alias for icSigColorantTableType found in LOGO profiles (Byte swapped clrt !) */ #define icmSigAltColorantTableType ((icTagTypeSignature)icmMakeTag('t','r','l','c')) @@ -1095,6 +1115,7 @@ struct _icmVideoCardGamma { /* ------------------------------------------------- */ /* The Profile header */ +/* NOTE that the deviceClass should be set up before calling chromAdaptMatrix()! */ struct _icmHeader { /* Private: */ @@ -1471,7 +1492,14 @@ struct _icc { /* Returns 0 if deleted OK */ int (*check_id)(struct _icc *p, ORD8 *id); /* Returns 0 if ID is OK, 1 if not present etc. */ double (*get_tac)(struct _icc *p, double *chmax, /* Returns total ink limit and channel maximums */ - void (*calfunc)(void *cntx, double *out, double *in), void *cntx); /* optional cal. lookup */ + void (*calfunc)(void *cntx, double *out, double *in), void *cntx); + /* optional cal. lookup */ + void (*chromAdaptMatrix)(struct _icc *p, int flags, icmXYZNumber d_wp, + icmXYZNumber s_wp, double mat[3][3]); + /* Chromatic transform function that uses icc */ + /* Absolute to Media Relative Transformation Space matrix */ + /* Set header->deviceClass before calling this! */ + /* Get a particular color conversion function */ icmLuBase * (*get_luobj) (struct _icc *p, @@ -1503,6 +1531,26 @@ struct _icc { int allowclutPoints256; /* Non standard - allow 256 res cLUT */ + int autoWpchtmx; /* Whether to automatically set wpchtmx[][] based on */ + /* the header and the state of the env override */ + /* ARGYLL_CREATE_WRONG_VON_KRIES_OUTPUT_CLASS_REL_WP. */ + /* Default true, set false on reading a profile. */ + int useLinWpchtmx; /* Force Wrong Von Kries for output class (default false) */ + icProfileClassSignature wpchtmx_class; /* Class of profile wpchtmx was set for */ + double wpchtmx[3][3]; /* Absolute to Media Relative Transformation Space matrix */ + double iwpchtmx[3][3]; /* Inverse of wpchtmx[][] */ + /* (Default is Bradford matrix) */ + int useArts; /* Save ArgyllCMS private 'arts' tag (default yes) */ + /* (This creates 'arts' tag on writing) */ + + int chadValid; /* nz if 'chad' tag has been read and chadmx is valid */ + double chadmx[3][3]; /* 'chad' tag matrix if read */ + int useChad; /* Create 'chad' tag for Display profile (default no) */ + /* Override with ARGYLL_CREATE_DISPLAY_PROFILE_WITH_CHAD */ + /* (This set media white point tag to D50 and */ + /* creates 'chad' tag on writing) */ + + /* Private: ? */ icmAlloc *al; /* Heap allocator */ int del_al; /* NZ if heap allocator should be deleted */ @@ -1923,19 +1971,24 @@ extern ICCLIB_API void icm1960UCS21964WUV(icmXYZNumber *w, double *out, double * /* The standard D50 illuminant value */ extern icmXYZNumber icmD50; extern icmXYZNumber icmD50_100; /* Scaled to 100 */ -extern double icmD50_ary3[3]; /* As an array */ -extern double icmD50_100_ary3[3]; /* Scaled to 100 as an array */ +extern double icmD50_ary3[3]; /* As an array */ +extern double icmD50_100_ary3[3]; /* Scaled to 100 as an array */ /* The standard D65 illuminant value */ extern icmXYZNumber icmD65; extern icmXYZNumber icmD65_100; /* Scaled to 100 */ -extern double icmD65_ary3[3]; /* As an array */ -extern double icmD65_100_ary3[3]; /* Scaled to 100 as an array */ +extern double icmD65_ary3[3]; /* As an array */ +extern double icmD65_100_ary3[3]; /* Scaled to 100 as an array */ /* The default black value */ extern icmXYZNumber icmBlack; +/* The Standard ("wrong Von-Kries") chromatic transform matrix */ +extern double icmWrongVonKries[3][3]; + +/* The Bradford chromatic transform matrix */ +extern double icmBradford[3][3]; /* Initialise a pseudo-hilbert grid counter, return total usable count. */ extern ICCLIB_API unsigned psh_init(psh *p, int di, unsigned int res, int co[]); @@ -1990,22 +2043,38 @@ int icmClipXYZ(double out[3], double in[3]); /* - - - - - - - - - - - - - - - - - - - - - - - */ -/* RGB primaries to device to RGB->XYZ transform matrix */ +/* RGB XYZ primaries to device to RGB->XYZ transform matrix */ +/* Return non-zero if matrix would be singular */ +/* Use icmMulBy3x3(dst, mat, src) */ +int icmRGBXYZprim2matrix( + double red[3], /* Red colorant */ + double green[3], /* Green colorant */ + double blue[3], /* Blue colorant */ + double white[3], /* White point */ + double mat[3][3] /* Destination matrix[RGB][XYZ] */ +); + +/* RGB Yxy primaries to device to RGB->XYZ transform matrix */ /* Return non-zero if matrix would be singular */ -int icmRGBprim2matrix( - icmXYZNumber white, /* White point */ - icmXYZNumber red, /* Red colorant */ - icmXYZNumber green, /* Green colorant */ - icmXYZNumber blue, /* Blue colorant */ - double mat[3][3] /* Destination matrix[RGB[XYZ] */ +/* Use icmMulBy3x3(dst, mat, src) */ +int icmRGBYxyprim2matrix( + double red[3], /* Red colorant */ + double green[3], /* Green colorant */ + double blue[3], /* Blue colorant */ + double white[3], /* White point */ + double mat[3][3], /* Return matrix[RGB][XYZ] */ + double wXYZ[3] /* Return white XYZ */ ); /* Chromatic Adaption transform utility */ /* Return a 3x3 chromatic adaption matrix */ /* Use icmMulBy3x3(dst, mat, src) */ +/* [ use icc->chromAdaptMatrix() to use the profiles cone space matrix] */ +#define ICM_CAM_NONE 0x0000 /* No flags */ #define ICM_CAM_BRADFORD 0x0001 /* Use Bradford sharpened response space */ -#define ICM_CAM_MULMATRIX 0x0002 /* Transform the given matrix */ +#define ICM_CAM_MULMATRIX 0x0002 /* Transform the given matrix rather than */ + /* create a transform from scratch. */ /* NOTE that to transform primaries they */ /* must be mat[XYZ][RGB] format! */ diff --git a/icc/iccstd.c b/icc/iccstd.c index 742be4d..3f7966e 100644 --- a/icc/iccstd.c +++ b/icc/iccstd.c @@ -310,7 +310,6 @@ icmAlloc *al /* heap allocator, NULL for default */ ) { icmFileStd *p; int del_al = 0; - struct stat sbuf; if (al == NULL) { /* None provided, create default */ if ((al = new_icmAllocStd()) == NULL) @@ -334,8 +333,10 @@ icmAlloc *al /* heap allocator, NULL for default */ p->get_buf = icmFileStd_get_buf; p->del = icmFileStd_delete; - if (fstat(fileno(fp), &sbuf) == 0) { - p->size = sbuf.st_size; + // fstat() is not so robust on MSWin. + if (fseek(fp, 0L, SEEK_END) == 0) { + p->size = ftell(fp); + fseek(fp, 0L, SEEK_SET); } else { p->size = 0; } diff --git a/icc/icctest.c b/icc/icctest.c index e7534fb..f0b1280 100644 --- a/icc/icctest.c +++ b/icc/icctest.c @@ -160,7 +160,7 @@ main( } /* - Would normally call icco->free(wr_icco); + Would normally call wr_icco->del(wr_icco); but leave it, so that we can verify the read. */ diff --git a/icc/lab2lab.icm b/icc/lab2lab.icm index 0b8a4b3..39a5911 100644 Binary files a/icc/lab2lab.icm and b/icc/lab2lab.icm differ diff --git a/icc/log.txt b/icc/log.txt index 7c4bd83..2e185dc 100644 --- a/icc/log.txt +++ b/icc/log.txt @@ -1,6 +1,18 @@ Change History: (See ArgyllCMS log.txt too) + 2.20 + Add better cross compatibility with non-Argyll ICC profiles: + + Use "wrong Von Kries" media white point adapation for non-Argyll non-display profile + + Optionally create "wrong Von Kries" media white point adapation profiles + using the "ARGYLL_CREATE_WRONG_VON_KRIES_OUTPUT_CLASS_REL_WP" env. variable, + while maintaining ArgyllCMS compatibility using the 'arts' tag. + + Implement proper absolute colorimetric intent for ICCV2 Display profiles + that use the ICCV4 style of have a media white od D50 and storing the + media chromatic trasnform in the 'chad' tag. + + Optionally create such ICCV4 style V2 Display profiles by using the + "ARGYLL_CREATE_DISPLAY_PROFILE_WITH_CHAD" env. variable. + 2.16 Clean up cLUT read code to make sanity checking more explicit and remove redundant code. diff --git a/icc/mcheck.c b/icc/mcheck.c index 54811c3..a392f31 100644 --- a/icc/mcheck.c +++ b/icc/mcheck.c @@ -24,6 +24,7 @@ #include #include #include +#include "vrml.h" #include "icc.h" void error(char *fmt, ...), warning(char *fmt, ...); @@ -31,24 +32,18 @@ void error(char *fmt, ...), warning(char *fmt, ...); void usage(void) { fprintf(stderr,"Check device to PCS monotonicity of a CMYK ICC file, V%s\n",ICCLIB_VERSION_STR); fprintf(stderr,"Author: Graeme W. Gill\n"); - fprintf(stderr,"usage: kcheck [-v] [-w] infile\n"); + fprintf(stderr,"usage: mcheck [-v] [-w] infile\n"); fprintf(stderr," -v verbose\n"); fprintf(stderr," -c Check just Cyan monotonicity\n"); fprintf(stderr," -m Check just Magenta monotonicity\n"); fprintf(stderr," -y Check just Yellow monotonicity\n"); fprintf(stderr," -k Check just Black monotonicity\n"); - fprintf(stderr," -w create VRML visualisation\n"); + fprintf(stderr," -w create %s visualisation\n",vrml_format()); + fprintf(stderr," -x use %s axes\n",vrml_format()); exit(1); } -#define MGR 50 /* Maximum grid resolution handled */ - - -FILE *start_vrml(char *name, int doaxes); -void start_line_set(FILE *wrl); -void add_vertex(FILE *wrl, double pp[3]); -void make_lines(FILE *wrl, int ppset); -void end_vrml(FILE *wrl); +#define MGR 50 /* Maximum grid resolution handled */ int main( @@ -73,7 +68,7 @@ main( icColorSpaceSignature ins, outs; /* Type of input and output spaces */ int inn; /* Number of input chanels */ icmLuAlgType alg; - FILE *wrl; + vrml *wrl; int dx[4]; /* Device index mapping */ int chan, cs, ce; @@ -101,7 +96,7 @@ main( if (argv[fa][1] == 'v' || argv[fa][1] == 'V') { verb = 1; } - /* VRML */ + /* VRML/X3D */ else if (argv[fa][1] == 'w' || argv[fa][1] == 'W') { dovrml = 1; } @@ -121,6 +116,9 @@ main( else if (argv[fa][1] == 'k' || argv[fa][1] == 'K') { cchan = 3; } + else if (argv[fa][1] == 'x') { + doaxes = 1; + } else if (argv[fa][1] == '?') usage(); else @@ -136,7 +134,7 @@ main( strcpy(out_name, in_name); if ((xl = strrchr(out_name, '.')) == NULL) /* Figure where extention is */ xl = out_name + strlen(out_name); - strcpy(xl,".wrl"); + xl[0] = '\000'; /* Remove extension */ /* Open up the file for reading */ if ((rd_fp = new_icmFileStd_name(in_name,"r")) == NULL) @@ -177,8 +175,10 @@ main( } if (dovrml) { - wrl = start_vrml(out_name, doaxes); - start_line_set(wrl); + wrl = new_vrml(out_name, doaxes, vrml_lab); + if (wrl == NULL) + error("new_vrml for '%s%s' failed",out_name,vrml_ext()); + wrl->start_line_set(wrl, 0); } /* For all the device chanels chosen */ @@ -237,7 +237,7 @@ main( error ("%d, %s",rd_icco->errc,rd_icco->err); // if (dovrml) -// add_vertex(wrl, pcs[ck]); +// wrl->add_vertex(wrl, 0, pcs[ck]); } /* Compute average vector direction */ @@ -276,7 +276,7 @@ main( /* Display just the non mono threads */ if (nm && dovrml) { for (j = 0; j < gres; j++) - add_vertex(wrl, pcs[j]); + wrl->add_vertex(wrl, 0, pcs[j]); } if (verb) { printf("."); fflush(stdout); @@ -287,8 +287,8 @@ main( } if (dovrml) { - make_lines(wrl, gres); - end_vrml(wrl); + wrl->make_lines(wrl, 0, gres); + wrl->del(wrl); } /* Done with lookup object */ @@ -300,218 +300,6 @@ main( return 0; } -/* ------------------------------------------------ */ -/* Some simple functions to do basix VRML work */ - -#define GAMUT_LCENT 50.0 -static int npoints = 0; -static int paloc = 0; -static struct { double pp[3]; } *pary; - -static void Lab2RGB(double *out, double *in); - -FILE *start_vrml(char *name, int doaxes) { - FILE *wrl; - struct { - double x, y, z; - double wx, wy, wz; - double r, g, b; - } axes[5] = { - { 0, 0, 50-GAMUT_LCENT, 2, 2, 100, .7, .7, .7 }, /* L axis */ - { 50, 0, 0-GAMUT_LCENT, 100, 2, 2, 1, 0, 0 }, /* +a (red) axis */ - { 0, -50, 0-GAMUT_LCENT, 2, 100, 2, 0, 0, 1 }, /* -b (blue) axis */ - { -50, 0, 0-GAMUT_LCENT, 100, 2, 2, 0, 1, 0 }, /* -a (green) axis */ - { 0, 50, 0-GAMUT_LCENT, 2, 100, 2, 1, 1, 0 }, /* +b (yellow) axis */ - }; - int i; - - if ((wrl = fopen(name,"w")) == NULL) - error("Error opening VRML file '%s'\n",name); - - npoints = 0; - - fprintf(wrl,"#VRML V2.0 utf8\n"); - fprintf(wrl,"\n"); - fprintf(wrl,"# Created by the Argyll CMS\n"); - fprintf(wrl,"Transform {\n"); - fprintf(wrl,"children [\n"); - fprintf(wrl," NavigationInfo {\n"); - fprintf(wrl," type \"EXAMINE\" # It's an object we examine\n"); - fprintf(wrl," } # We'll add our own light\n"); - fprintf(wrl,"\n"); - fprintf(wrl," DirectionalLight {\n"); - fprintf(wrl," direction 0 0 -1 # Light illuminating the scene\n"); - fprintf(wrl," direction 0 -1 0 # Light illuminating the scene\n"); - fprintf(wrl," }\n"); - fprintf(wrl,"\n"); - fprintf(wrl," Viewpoint {\n"); - fprintf(wrl," position 0 0 340 # Position we view from\n"); - fprintf(wrl," }\n"); - fprintf(wrl,"\n"); - if (doaxes != 0) { - fprintf(wrl,"# Lab axes as boxes:\n"); - for (i = 0; i < 5; i++) { - fprintf(wrl,"Transform { translation %f %f %f\n", axes[i].x, axes[i].y, axes[i].z); - fprintf(wrl,"\tchildren [\n"); - fprintf(wrl,"\t\tShape{\n"); - fprintf(wrl,"\t\t\tgeometry Box { size %f %f %f }\n", - axes[i].wx, axes[i].wy, axes[i].wz); - fprintf(wrl,"\t\t\tappearance Appearance { material Material "); - fprintf(wrl,"{ diffuseColor %f %f %f} }\n", axes[i].r, axes[i].g, axes[i].b); - fprintf(wrl,"\t\t}\n"); - fprintf(wrl,"\t]\n"); - fprintf(wrl,"}\n"); - } - fprintf(wrl,"\n"); - } - - return wrl; -} - -void -start_line_set(FILE *wrl) { - - fprintf(wrl,"\n"); - fprintf(wrl,"Shape {\n"); - fprintf(wrl," geometry IndexedLineSet { \n"); - fprintf(wrl," coord Coordinate { \n"); - fprintf(wrl," point [\n"); -} - -void add_vertex(FILE *wrl, double pp[3]) { - - fprintf(wrl,"%f %f %f,\n",pp[1], pp[2], pp[0]-GAMUT_LCENT); - - if (paloc < (npoints+1)) { - paloc = (paloc + 10) * 2; - if (pary == NULL) - pary = malloc(paloc * 3 * sizeof(double)); - else - pary = realloc(pary, paloc * 3 * sizeof(double)); - - if (pary == NULL) - error ("Malloc failed"); - } - pary[npoints].pp[0] = pp[0]; - pary[npoints].pp[1] = pp[1]; - pary[npoints].pp[2] = pp[2]; - npoints++; -} - - -void make_lines(FILE *wrl, int ppset) { - int i, j; - - fprintf(wrl," ]\n"); - fprintf(wrl," }\n"); - fprintf(wrl," coordIndex [\n"); - - for (i = 0; i < npoints;) { - for (j = 0; j < ppset; j++, i++) { - fprintf(wrl,"%d, ", i); - } - fprintf(wrl,"-1,\n"); - } - fprintf(wrl," ]\n"); - - /* Color */ - fprintf(wrl," colorPerVertex TRUE\n"); - fprintf(wrl," color Color {\n"); - fprintf(wrl," color [ # RGB colors of each vertex\n"); - - for (i = 0; i < npoints; i++) { - double rgb[3], Lab[3]; - Lab[0] = pary[i].pp[0]; - Lab[1] = pary[i].pp[1]; - Lab[2] = pary[i].pp[2]; - Lab2RGB(rgb, Lab); - fprintf(wrl," %f %f %f,\n", rgb[0], rgb[1], rgb[2]); - } - fprintf(wrl," ] \n"); - fprintf(wrl," }\n"); - /* End color */ - - fprintf(wrl," }\n"); - fprintf(wrl,"} # end shape\n"); - -} - -void end_vrml(FILE *wrl) { - - fprintf(wrl,"\n"); - fprintf(wrl," ] # end of children for world\n"); - fprintf(wrl,"}\n"); - - if (fclose(wrl) != 0) - error("Error closing VRML file\n"); -} - - -/* Convert a gamut Lab value to an RGB value for display purposes */ -static void -Lab2RGB(double *out, double *in) { - double L = in[0], a = in[1], b = in[2]; - double x,y,z,fx,fy,fz; - double R, G, B; - - /* Scale so that black is visible */ - L = L * (100 - 40.0)/100.0 + 40.0; - - /* First convert to XYZ using D50 white point */ - if (L > 8.0) { - fy = (L + 16.0)/116.0; - y = pow(fy,3.0); - } else { - y = L/903.2963058; - fy = 7.787036979 * y + 16.0/116.0; - } - - fx = a/500.0 + fy; - if (fx > 24.0/116.0) - x = pow(fx,3.0); - else - x = (fx - 16.0/116.0)/7.787036979; - - fz = fy - b/200.0; - if (fz > 24.0/116.0) - z = pow(fz,3.0); - else - z = (fz - 16.0/116.0)/7.787036979; - - x *= 0.9642; /* Multiply by white point, D50 */ - y *= 1.0; - z *= 0.8249; - - /* Now convert to sRGB values */ - R = x * 3.2410 + y * -1.5374 + z * -0.4986; - G = x * -0.9692 + y * 1.8760 + z * 0.0416; - B = x * 0.0556 + y * -0.2040 + z * 1.0570; - - if (R < 0.0) - R = 0.0; - else if (R > 1.0) - R = 1.0; - - if (G < 0.0) - G = 0.0; - else if (G > 1.0) - G = 1.0; - - if (B < 0.0) - B = 0.0; - else if (B > 1.0) - B = 1.0; - - R = pow(R, 1.0/2.2); - G = pow(G, 1.0/2.2); - B = pow(B, 1.0/2.2); - - out[0] = R; - out[1] = G; - out[2] = B; -} - - /* ------------------------------------------------ */ /* Basic printf type error() and warning() routines */ diff --git a/icc/mkDispProf.c b/icc/mkDispProf.c index bc70154..6878aad 100644 --- a/icc/mkDispProf.c +++ b/icc/mkDispProf.c @@ -176,7 +176,7 @@ char *argv[] /* Setup the primaries */ { /* Compute primaries as XYZ */ - icmXYZNumber wrgb[4] = { /* Primaries in Yxy from the standard */ + double wrgb[4][3] = { /* Primaries in Yxy from the standard */ { 1.0, 0.3127, 0.3290 }, /* White */ { 1.0, 0.6400, 0.3300 }, /* Red */ { 1.0, 0.3000, 0.6000 }, /* Green */ @@ -185,28 +185,49 @@ char *argv[] double mat[3][3]; int i; - /* Convert Yxy to XYZ */ - for (i = 0; i < 4; i++) { - double v[3]; + /* Convert yxy to normalised 3x3 matrix */ + icmRGBYxyprim2matrix(wrgb[1], wrgb[2], wrgb[3], wrgb[0], mat, wrgb[0]); + icmTranspose3x3(mat, mat); - icmXYZ2Ary(v, wrgb[i]); - icmYxy2XYZ(v, v); - icmAry2XYZ(wrgb[i], v); - } - - /* Convert XYZ to normalised 3x3 matrix */ - icmRGBprim2matrix(wrgb[0], wrgb[1], wrgb[2], wrgb[3], mat); - -#ifdef NEVER /* Dump XYZ of matrix */ +#ifdef NEVER /* Dump XYZ */ printf("sRGB: XYZ\n"); - printf("{ %f, %f, %f }, /* Red */\n" - "{ %f, %f, %f }, /* Green */\n" - "{ %f, %f, %f }, /* Blue */\n" + printf("{ %f, %f, %f }, /* Red */\n" + "{ %f, %f, %f }, /* Green */\n" + "{ %f, %f, %f }, /* Blue */\n" "{ %f, %f, %f } /* White */\n", mat[0][0], mat[0][1], mat[0][2], mat[1][0], mat[1][1], mat[1][2], mat[2][0], mat[2][1], mat[2][2], - wrgb[0].X, wrgb[0].Y, wrgb[0].Z); + wrgb[0][0], wrgb[0][1], wrgb[0][2]); +#endif + +#ifdef NEVER /* Dump xyz */ +{ + double mat2[4][3]; + double tt; + + for (i = 0; i < 3; i++) { + + tt = mat[i][0] + mat[i][1] + mat[i][2]; + mat2[i][0] = mat[i][0] / tt; + mat2[i][1] = mat[i][1] / tt; + mat2[i][2] = mat[i][2] / tt; + } + tt = wrgb[0][0] + wrgb[0][1] + wrgb[0][2]; + mat2[i][0] = wrgb[0][0] / tt; + mat2[i][1] = wrgb[0][1] / tt; + mat2[i][2] = wrgb[0][2] / tt; + + printf("sRGB: xyz\n"); + printf("{ %f, %f, %f }, /* Red */\n" + "{ %f, %f, %f }, /* Green */\n" + "{ %f, %f, %f }, /* Blue */\n" + "{ %f, %f, %f } /* White */\n", + mat2[0][0], mat2[0][1], mat2[0][2], + mat2[1][0], mat2[1][1], mat2[1][2], + mat2[2][0], mat2[2][1], mat2[2][2], + mat2[3][0], mat2[3][1], mat2[3][2]); +} #endif /* White Point Tag: */ @@ -219,9 +240,9 @@ char *argv[] wo->size = 1; wo->allocate((icmBase *)wo); /* Allocate space */ - wo->data[0].X = wrgb[0].X; - wo->data[0].Y = wrgb[0].Y; - wo->data[0].Z = wrgb[0].Z; + wo->data[0].X = wrgb[0][0]; + wo->data[0].Y = wrgb[0][1]; + wo->data[0].Z = wrgb[0][2]; } /* Black Point Tag: */ { @@ -239,12 +260,14 @@ char *argv[] } /* Red, Green and Blue Colorant Tags: */ { + icmXYZNumber white; icmXYZArray *wor, *wog, *wob; double fromAbs[3][3]; double d50m[3][3]; /* Convert to D50 adapated */ - icmChromAdaptMatrix(ICM_CAM_BRADFORD, icmD50, wrgb[0], fromAbs); + icmAry2XYZ(white, wrgb[0]); + wr_icco->chromAdaptMatrix(wr_icco, ICM_CAM_NONE, icmD50, white, fromAbs); icmMulBy3x3(d50m[0], fromAbs, mat[0]); icmMulBy3x3(d50m[1], fromAbs, mat[1]); icmMulBy3x3(d50m[2], fromAbs, mat[2]); diff --git a/icc/sRGB.icm b/icc/sRGB.icm index 5491330..9d33a4b 100644 Binary files a/icc/sRGB.icm and b/icc/sRGB.icm differ diff --git a/imdi/Jamfile b/imdi/Jamfile index a2b3796..79b27fb 100644 --- a/imdi/Jamfile +++ b/imdi/Jamfile @@ -50,10 +50,11 @@ HDRS += ../icc ../rspl ../gamut ../cgats ../spectro ; LINKLIBS = $(LINKLIBS) libimdi ../icc/libicc ../numlib/libnum ; # imdi test code -Main itest : itest.c refi.c : : : ../rspl : : ../rspl/librspl ../plot/libvrml ; +Main itest : itest.c refi.c : : : ../rspl : : ../rspl/librspl ../plot/libplot + ../plot/libvrml ../numlib/libui ; # TIFF file color correction utlity -Main cctiff : cctiff.c : : : ../xicc $(TIFFINC) $(JPEGINC) : : ../xicc/libxicc ../rspl/librspl ../cgats/libcgats ../plot/libvrml $(TIFFLIB) $(JPEGLIB) ; +Main cctiff : cctiff.c : : : ../xicc $(TIFFINC) $(JPEGINC) : : ../xicc/libxicc ../rspl/librspl ../cgats/libcgats ../plot/libplot ../plot/libvrml ../numlib/libui $(TIFFLIB) $(JPEGLIB) ; # Old TIFF file color correction utlity #Main cctiffo : cctiffo.c : : : $(TIFFINC) : : $(TIFFLIB) ; @@ -62,7 +63,7 @@ Main cctiff : cctiff.c : : : ../xicc $(TIFFINC) $(JPEGINC) : : ../xicc/libxicc . #Main greytiff : greytiff.c ; Main greytiff : greytiff.c : : : ../spectro ../xicc ../gamut ../rspl ../cgats $(TIFFINC) : : ../xicc/libxicc ../gamut/libgamut ../rspl/librspl ../cgats/libcgats - ../plot/libplot ../plot/libvrml $(TIFFLIB) $(JPEGLIB) ; + ../plot/libplot ../plot/libvrml ../numlib/libui $(TIFFLIB) $(JPEGLIB) ; # ssort generation code #Main ssort : ssort.c ; diff --git a/imdi/cctiff.c b/imdi/cctiff.c index bb6ee0d..6c6f64f 100644 --- a/imdi/cctiff.c +++ b/imdi/cctiff.c @@ -17,6 +17,10 @@ /* TTBD: + Add dithered 8 bit output mode. Generate 16 bit + internally, then apply screening down to 8 bits + Use render/thrscreen to do the hard work. + Should special case jpeg noop used to embed profile in output, using jpeg_read_coefficients()/jpeg_write_coefficients() rather than jpeg_start_decompress(), jpeg_read_scanlines() etc. @@ -92,6 +96,7 @@ #include "icc.h" #include "xicc.h" #include "imdi.h" +#include "ui.h" #undef DEBUG /* Print detailed debug info */ @@ -1711,12 +1716,15 @@ main(int argc, char *argv[]) { } else { if (wphotometric == PHOTOMETRIC_SEPARATED) { - icc *c = su.profs[su.lclut].c; + icc *c = NULL; icmColorantTable *ct; int iset; int inlen; char *inames = NULL; + if (su.lclut >= 0 && su.lclut < su.nprofs) + c = su.profs[su.lclut].c; + iset = ColorSpaceSignature2TiffInkset(su.outs, &inlen, &inames); /* Use ICC profile ink names if they are available */ diff --git a/imdi/greytiff.c b/imdi/greytiff.c index af52013..bcc7553 100644 --- a/imdi/greytiff.c +++ b/imdi/greytiff.c @@ -42,6 +42,7 @@ #include "numlib.h" #include "xicc.h" #include "imdi.h" +#include "ui.h" #undef DO_CHECK /* Do floating point check */ diff --git a/imdi/itest.c b/imdi/itest.c index 8edcb8b..515d2b1 100644 --- a/imdi/itest.c +++ b/imdi/itest.c @@ -16,6 +16,7 @@ #include "numlib.h" #include "imdi.h" #include "refi.h" +#include "ui.h" /* Test parameters */ #undef TEST1 /* Test just one combination */ diff --git a/jcnf/Jamfile b/jcnf/Jamfile index cc9df79..ea1e8f7 100644 --- a/jcnf/Jamfile +++ b/jcnf/Jamfile @@ -1,13 +1,11 @@ -# JAM style makefile for yajl +# JAM style makefile for jcnf #PREF_CCFLAGS = $(CCOPTFLAG) ; # Turn optimisation on PREF_CCFLAGS = $(CCDEBUGFLAG) ; # Debugging flags #PREF_CCFLAGS = $(CCHEAPDEBUG) ; # Heap Debugging flags PREF_LINKFLAGS = $(LINKDEBUGFLAG) ; # Link debugging flags -SubInclude yajl ; - #Products Libraries = libjcnf ; Executables = ; @@ -18,11 +16,13 @@ Headers = jcnf.h ; #InstallFile $(DESTDIR)$(PREFIX)/h : $(Headers) ; #InstallLib $(DESTDIR)$(PREFIX)/lib : $(Libraries) ; +HDRS = ../yajl ; + # config parser based on yajl Library libjcnf : jcnf.c ; # Link all utilities here with libicc -LINKLIBS = libjcnf yajl/libyajl ../numlib/libnum ; +LINKLIBS = libjcnf ../yajl/libyajl ../numlib/libnum ; # All utils are made from a single source file MainsFromSources test.c ; diff --git a/jcnf/jcnf.c b/jcnf/jcnf.c index c2fd4cc..799be7c 100644 --- a/jcnf/jcnf.c +++ b/jcnf/jcnf.c @@ -37,19 +37,19 @@ #include #include #ifndef NT -#include +# include +# include #endif #include #include #include #include #include -#include #include -#include "yajl/yajl_common.h" -#include "yajl/yajl_gen.h" -#include "yajl/yajl_parse.h" +#include "yajl_common.h" +#include "yajl_gen.h" +#include "yajl_parse.h" #include "jcnf.h" @@ -464,7 +464,7 @@ static int jcnf_yajl_boolean(void * ctx, int boolVal) { return 1; } -static int jcnf_yajl_integer(void *ctx, long integerVal) { +static int jcnf_yajl_integer(void *ctx, longlong integerVal) { jcnf *p = (jcnf *)ctx; char *t1; @@ -507,7 +507,7 @@ static int jcnf_yajl_double(void *ctx, double doubleVal) { } static int jcnf_yajl_string(void *ctx, const unsigned char *stringVal, - unsigned int stringLen) { + size_t stringLen) { jcnf *p = (jcnf *)ctx; char *t1, *t2; @@ -608,7 +608,7 @@ static int jcnf_yajl_start_map(void *ctx) { } static int jcnf_yajl_map_key(void *ctx, const unsigned char * stringVal, - unsigned int stringLen) { + size_t stringLen) { jcnf *p = (jcnf *)ctx; int i; @@ -760,12 +760,9 @@ static jc_error jcnf_read( ) { jc_error ev; yajl_handle hand; - yajl_parser_config cfg = { 0, 1 }; /* Validate UTF8 strings ? */ unsigned char buf[BUF_SIZE]; struct stat sbuf; - cfg.allowComments = 1; - if ((p->fp = fopen(p->fname, p->modify ? "r+" : "r")) == NULL) { if (!p->modify) return jc_noexisting; @@ -780,7 +777,10 @@ static jc_error jcnf_read( if ((ev = jcnf_lock_file(p)) != jc_ok) return ev; - hand = yajl_alloc(&callbacks, &cfg, NULL, (void *)p); + hand = yajl_alloc(&callbacks, NULL, (void *)p); + + yajl_config(hand, yajl_allow_comments, 1); + yajl_config(hand, yajl_dont_validate_strings, 1); /* Parse the file */ for(;;) { @@ -799,9 +799,7 @@ static jc_error jcnf_read( /* read file data, pass to parser */ stat = yajl_parse(hand, buf, rd); - if (stat != yajl_status_insufficient_data && - stat != yajl_status_ok) - { + if (stat != yajl_status_ok) { unsigned char * str = yajl_get_error(hand, 1, buf, rd); fflush(stdout); fprintf(stderr, "%s", (char *) str); @@ -839,11 +837,10 @@ static jc_error jcnf_write( ) { FILE *fp; /* For temporary file */ char *tname = NULL; - yajl_gen_config conf = { 1, " " }; yajl_gen g; yajl_status stat; const unsigned char * buf; - unsigned int len; + size_t len; int clevel = 0; /* Current level */ char *pkey = ""; /* Previous key */ char *ckey; /* Current key */ @@ -891,7 +888,11 @@ static jc_error jcnf_write( } #endif - g = yajl_gen_alloc(&conf, NULL); + g = yajl_gen_alloc(NULL); + + yajl_gen_config(g, yajl_gen_beautify, 1); + yajl_gen_config(g, yajl_gen_indent_string, "\t"); + yajl_gen_config(g, yajl_gen_validate_utf8, 1); /* Generate the file */ for (i = 0; i < p->nkeys; i++, pkey = ckey) { diff --git a/jcnf/yajl/COPYING b/jcnf/yajl/COPYING deleted file mode 100644 index fac48ba..0000000 --- a/jcnf/yajl/COPYING +++ /dev/null @@ -1,29 +0,0 @@ -Copyright 2007-2009, Lloyd Hilaiel. - -Redistribution and use in source and binary forms, with or without -modification, are permitted provided that the following conditions are -met: - - 1. Redistributions of source code must retain the above copyright - notice, this list of conditions and the following disclaimer. - - 2. Redistributions in binary form must reproduce the above copyright - notice, this list of conditions and the following disclaimer in - the documentation and/or other materials provided with the - distribution. - - 3. Neither the name of Lloyd Hilaiel nor the names of its - contributors may be used to endorse or promote products derived - from this software without specific prior written permission. - -THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR -IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED -WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE -DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, -INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES -(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR -SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) -HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, -STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING -IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE -POSSIBILITY OF SUCH DAMAGE. diff --git a/jcnf/yajl/ChangeLog b/jcnf/yajl/ChangeLog deleted file mode 100644 index 9acb334..0000000 --- a/jcnf/yajl/ChangeLog +++ /dev/null @@ -1,88 +0,0 @@ -1.0.5 mod ArgyllCMS - - Flattened source code layout - Removed cmake files, and added Jamfile - Added support for reading and writing comments - - (Graeme Gill) - -1.0.5 - * lth several performance improvements related to function - inlinin' - -1.0.4 - * lth fix broken utf8 validation for three & four byte represenations. - thanks to http://github.com/brianmario and - http://github.com/technoweenie - -1.0.3 - * lth fix syntax error in cplusplus extern "C" statements for wider - compiler support - -1.0.2 - * lth update doxygen documentation with new sample code, passing NULL - for allocation functions added in 1.0.0 - -1.0.1 - * lth resolve crash in json_reformatter due to incorrectly ordered - parameters. - -1.0.0 - * lth add 'make install' rules, thaks to Andrei Soroker for the - contribution. - * lth client may override allocation routines at generator or parser - allocation time - * tjw add yajl_parse_complete routine to allow client to explicitly - specify end-of-input, solving the "lonely number" case, where - json text consists only of an element with no explicit syntactic - end. - * tjw many new test cases - * tjw cleanup of code for symmetry and ease of reading - * lth integration of patches from Robert Varga which cleanup - compilation warnings on 64 bit linux - -0.4.0 - * lth buffer overflow bug in yajl_gen_double s/%lf/%g/ - thanks to - Eric Bergstrome - * lth yajl_number callback to allow passthrough of arbitrary precision - numbers to client. Thanks to Hatem Nassrat. - * lth yajl_integer now deals in long, instead of long long. This - combined with yajl_number improves compiler compatibility while - maintaining precision. - * lth better ./configure && make experience (still requires cmake and - ruby) - * lth fix handling of special characters hex 0F and 1F in yajl_encode - (thanks to Robert Geiger) - * lth allow leading zeros in exponents (thanks to Hatem Nassrat) - -0.3.0 - * lth doxygen documentation (html & man) generated as part of the - build - * lth many documentation updates. - * lth fix to work with older versions of cmake (don't use LOOSE_LOOP - constructs) - * lth work around different behavior of freebsd 4 scanf. initialize - parameter to scanf to zero. - * lth all tests run 32x with ranging buffer sizes to stress stream - parsing - * lth yajl_test accepts -b option to allow read buffer size to be - set - * lth option to validate UTF8 added to parser (argument in - yajl_parser_cfg) - * lth fix buffer overrun when chunk ends inside \u escaped text - * lth support client cancelation - -0.2.2 - * lth on windows build debug with C7 symbols and no pdb files. - -0.2.1 - * fix yajl_reformat and yajl_verify to work on arbitrarily sized - inputs. - * fix win32 build break, clean up all errors and warnings. - * fix optimized build flags. - -0.2.0 - * optionally support comments in input text - -0.1.0 - * Initial release diff --git a/jcnf/yajl/Jamfile b/jcnf/yajl/Jamfile deleted file mode 100644 index 122253f..0000000 --- a/jcnf/yajl/Jamfile +++ /dev/null @@ -1,30 +0,0 @@ - -# JAM style makefile for yajl - -#PREF_CCFLAGS = $(CCOPTFLAG) ; # Turn optimisation on -PREF_CCFLAGS = $(CCDEBUGFLAG) ; # Debugging flags -#PREF_CCFLAGS = $(CCHEAPDEBUG) ; # Heap Debugging flags -PREF_LINKFLAGS = $(LINKDEBUGFLAG) ; # Link debugging flags - -#Products -Libraries = libyajl ; -Executables = ; -Headers = yajl_common.h yajl_gen.h yajl_parse.h ; # API headers - -#Install -#InstallBin $(DESTDIR)$(PREFIX)/bin : $(Executables) ; -#InstallFile $(DESTDIR)$(PREFIX)/h : $(Headers) ; -#InstallLib $(DESTDIR)$(PREFIX)/lib : $(Libraries) ; - -# config parser based on yajl -Library libyajl : yajl.c yajl_alloc.c yajl_buf.c yajl_encode.c yajl_gen.c yajl_lex.c yajl_parser.c ; - -# Link all utilities here with libicc -LINKLIBS = libyajl ; - -# All utils are made from a single source file -MainsFromSources yajl_test.c json_verify.c ; - - - - diff --git a/jcnf/yajl/README b/jcnf/yajl/README deleted file mode 100644 index 93b3a1a..0000000 --- a/jcnf/yajl/README +++ /dev/null @@ -1,68 +0,0 @@ -Welcome to Yet Another JSON Library (YAJL) - -## Why does the world need another C library for parsing JSON? - -Good question. In a review of current C JSON parsing libraries I was -unable to find one that satisfies my requirements. Those are, -0. written in C -1. portable -2. robust -- as close to "crash proof" as possible -3. data representation independent -4. fast -5. generates verbose, useful error messages including context of where - the error occurs in the input text. -6. can parse JSON data off a stream, incrementally -7. simple to use -8. tiny - -Numbers 3, 5, 6, and 7 where particularly hard to find, and were what -caused me to ultimately create YAJL. This document is a tour of some -of the more important aspects of YAJL. - -## YAJL is Free. - -BSD licensing means you can use it in open source and commercial products -alike. My request beyond the licensing is that if you find bugs drop -me a email, or better yet, fork me on git and fix it! - -Porting YAJL should be trivial, the implementation is ANSI C. If you -port to new systems I'd love to hear of it and integrate your patches. - -## YAJL is data representation independent. - -BYODR! Many JSON libraries impose a structure based data representation -on you. This is a benefit in some cases and a drawback in others. -YAJL uses callbacks to remain agnostic of the in-memory representation. -So if you wish to build up an in-memory representation, you may do so -using YAJL, but you must bring the code that defines and populates the -in memory structure. - -This also means that YAJL can be used by other (higher level) JSON -libraries if so desired. - -## YAJL supports stream parsing - -This means you do not need to hold the whole JSON representation in -textual form in memory. This makes YAJL ideal for filtering projects, -where you're converting YAJL from one form to another (i.e. XML). The -included JSON pretty printer is an example of such a filter program. - -## YAJL is fast - -Minimal memory copying is performed. YAJL, when possible, returns -pointers into the client provided text (i.e. for strings that have no -embedded escape chars, hopefully the common case). I've put a lot of -effort into profiling and tuning performance, but I have ignored a -couple possible performance improvements to keep the interface clean, -small, and flexible. My hope is that YAJL will perform comparably to -the fastest JSON parser out there. - -YAJL should impose both minimal CPU and memory requirements on your -application. - -## YAJL is tiny. - -Fat free. No whip. - -enjoy, -Lloyd - July, 2007 diff --git a/jcnf/yajl/TODO b/jcnf/yajl/TODO deleted file mode 100644 index 56c3dc0..0000000 --- a/jcnf/yajl/TODO +++ /dev/null @@ -1,9 +0,0 @@ -* add a test for 0x1F bug -* numeric overflow in integers and double -* line and char offsets in the lexer and in error messages -* testing: - a. the permuter - b. some performance comparison against json_checker. -* investigate pull instead of push parsing -* Handle memory allocation failures gracefully -* cygwin/msys support on win32 diff --git a/jcnf/yajl/YAJL.dxy b/jcnf/yajl/YAJL.dxy deleted file mode 100644 index 680eb43..0000000 --- a/jcnf/yajl/YAJL.dxy +++ /dev/null @@ -1,1258 +0,0 @@ -# Doxyfile 1.5.2 - -# This file describes the settings to be used by the documentation system -# doxygen (www.doxygen.org) for a project -# -# All text after a hash (#) is considered a comment and will be ignored -# The format is: -# TAG = value [value, ...] -# For lists items can also be appended using: -# TAG += value [value, ...] -# Values that contain spaces should be placed between quotes (" ") - -#--------------------------------------------------------------------------- -# Project related configuration options -#--------------------------------------------------------------------------- - -# This tag specifies the encoding used for all characters in the config file that -# follow. The default is UTF-8 which is also the encoding used for all text before -# the first occurrence of this tag. Doxygen uses libiconv (or the iconv built into -# libc) for the transcoding. See http://www.gnu.org/software/libiconv for the list of -# possible encodings. - -DOXYFILE_ENCODING = UTF-8 - -# The PROJECT_NAME tag is a single word (or a sequence of words surrounded -# by quotes) that should identify the project. - -PROJECT_NAME = YAJL - -# The PROJECT_NUMBER tag can be used to enter a project or revision number. -# This could be handy for archiving the generated documentation or -# if some version control system is used. - -PROJECT_NUMBER = @YAJL_VERSION@ - -# The OUTPUT_DIRECTORY tag is used to specify the (relative or absolute) -# base path where the generated documentation will be put. -# If a relative path is entered, it will be relative to the location -# where doxygen was started. If left blank the current directory will be used. - -OUTPUT_DIRECTORY = yajl-@YAJL_VERSION@/share - -# If the CREATE_SUBDIRS tag is set to YES, then doxygen will create -# 4096 sub-directories (in 2 levels) under the output directory of each output -# format and will distribute the generated files over these directories. -# Enabling this option can be useful when feeding doxygen a huge amount of -# source files, where putting all generated files in the same directory would -# otherwise cause performance problems for the file system. - -CREATE_SUBDIRS = NO - -# The OUTPUT_LANGUAGE tag is used to specify the language in which all -# documentation generated by doxygen is written. Doxygen will use this -# information to generate all constant output in the proper language. -# The default language is English, other supported languages are: -# Afrikaans, Arabic, Brazilian, Catalan, Chinese, Chinese-Traditional, -# Croatian, Czech, Danish, Dutch, Finnish, French, German, Greek, Hungarian, -# Italian, Japanese, Japanese-en (Japanese with English messages), Korean, -# Korean-en, Lithuanian, Norwegian, Polish, Portuguese, Romanian, Russian, -# Serbian, Slovak, Slovene, Spanish, Swedish, and Ukrainian. - -OUTPUT_LANGUAGE = English - -# If the BRIEF_MEMBER_DESC tag is set to YES (the default) Doxygen will -# include brief member descriptions after the members that are listed in -# the file and class documentation (similar to JavaDoc). -# Set to NO to disable this. - -BRIEF_MEMBER_DESC = YES - -# If the REPEAT_BRIEF tag is set to YES (the default) Doxygen will prepend -# the brief description of a member or function before the detailed description. -# Note: if both HIDE_UNDOC_MEMBERS and BRIEF_MEMBER_DESC are set to NO, the -# brief descriptions will be completely suppressed. - -REPEAT_BRIEF = YES - -# This tag implements a quasi-intelligent brief description abbreviator -# that is used to form the text in various listings. Each string -# in this list, if found as the leading text of the brief description, will be -# stripped from the text and the result after processing the whole list, is -# used as the annotated text. Otherwise, the brief description is used as-is. -# If left blank, the following values are used ("$name" is automatically -# replaced with the name of the entity): "The $name class" "The $name widget" -# "The $name file" "is" "provides" "specifies" "contains" -# "represents" "a" "an" "the" - -ABBREVIATE_BRIEF = - -# If the ALWAYS_DETAILED_SEC and REPEAT_BRIEF tags are both set to YES then -# Doxygen will generate a detailed section even if there is only a brief -# description. - -ALWAYS_DETAILED_SEC = NO - -# If the INLINE_INHERITED_MEMB tag is set to YES, doxygen will show all -# inherited members of a class in the documentation of that class as if those -# members were ordinary class members. Constructors, destructors and assignment -# operators of the base classes will not be shown. - -INLINE_INHERITED_MEMB = NO - -# If the FULL_PATH_NAMES tag is set to YES then Doxygen will prepend the full -# path before files name in the file list and in the header files. If set -# to NO the shortest path that makes the file name unique will be used. - -FULL_PATH_NAMES = NO - -# If the FULL_PATH_NAMES tag is set to YES then the STRIP_FROM_PATH tag -# can be used to strip a user-defined part of the path. Stripping is -# only done if one of the specified strings matches the left-hand part of -# the path. The tag can be used to show relative paths in the file list. -# If left blank the directory from which doxygen is run is used as the -# path to strip. - -STRIP_FROM_PATH = - -# The STRIP_FROM_INC_PATH tag can be used to strip a user-defined part of -# the path mentioned in the documentation of a class, which tells -# the reader which header file to include in order to use a class. -# If left blank only the name of the header file containing the class -# definition is used. Otherwise one should specify the include paths that -# are normally passed to the compiler using the -I flag. - -STRIP_FROM_INC_PATH = - -# If the SHORT_NAMES tag is set to YES, doxygen will generate much shorter -# (but less readable) file names. This can be useful is your file systems -# doesn't support long names like on DOS, Mac, or CD-ROM. - -SHORT_NAMES = NO - -# If the JAVADOC_AUTOBRIEF tag is set to YES then Doxygen -# will interpret the first line (until the first dot) of a JavaDoc-style -# comment as the brief description. If set to NO, the JavaDoc -# comments will behave just like the Qt-style comments (thus requiring an -# explicit @brief command for a brief description. - -JAVADOC_AUTOBRIEF = NO - -# The MULTILINE_CPP_IS_BRIEF tag can be set to YES to make Doxygen -# treat a multi-line C++ special comment block (i.e. a block of //! or /// -# comments) as a brief description. This used to be the default behaviour. -# The new default is to treat a multi-line C++ comment block as a detailed -# description. Set this tag to YES if you prefer the old behaviour instead. - -MULTILINE_CPP_IS_BRIEF = NO - -# If the DETAILS_AT_TOP tag is set to YES then Doxygen -# will output the detailed description near the top, like JavaDoc. -# If set to NO, the detailed description appears after the member -# documentation. - -DETAILS_AT_TOP = YES - -# If the INHERIT_DOCS tag is set to YES (the default) then an undocumented -# member inherits the documentation from any documented member that it -# re-implements. - -INHERIT_DOCS = YES - -# If the SEPARATE_MEMBER_PAGES tag is set to YES, then doxygen will produce -# a new page for each member. If set to NO, the documentation of a member will -# be part of the file/class/namespace that contains it. - -SEPARATE_MEMBER_PAGES = NO - -# The TAB_SIZE tag can be used to set the number of spaces in a tab. -# Doxygen uses this value to replace tabs by spaces in code fragments. - -TAB_SIZE = 4 - -# This tag can be used to specify a number of aliases that acts -# as commands in the documentation. An alias has the form "name=value". -# For example adding "sideeffect=\par Side Effects:\n" will allow you to -# put the command \sideeffect (or @sideeffect) in the documentation, which -# will result in a user-defined paragraph with heading "Side Effects:". -# You can put \n's in the value part of an alias to insert newlines. - -ALIASES = - -# Set the OPTIMIZE_OUTPUT_FOR_C tag to YES if your project consists of C -# sources only. Doxygen will then generate output that is more tailored for C. -# For instance, some of the names that are used will be different. The list -# of all members will be omitted, etc. - -OPTIMIZE_OUTPUT_FOR_C = YES - -# Set the OPTIMIZE_OUTPUT_JAVA tag to YES if your project consists of Java -# sources only. Doxygen will then generate output that is more tailored for Java. -# For instance, namespaces will be presented as packages, qualified scopes -# will look different, etc. - -OPTIMIZE_OUTPUT_JAVA = NO - -# If you use STL classes (i.e. std::string, std::vector, etc.) but do not want to -# include (a tag file for) the STL sources as input, then you should -# set this tag to YES in order to let doxygen match functions declarations and -# definitions whose arguments contain STL classes (e.g. func(std::string); v.s. -# func(std::string) {}). This also make the inheritance and collaboration -# diagrams that involve STL classes more complete and accurate. - -BUILTIN_STL_SUPPORT = NO - -# If you use Microsoft's C++/CLI language, you should set this option to YES to -# enable parsing support. - -CPP_CLI_SUPPORT = NO - -# If member grouping is used in the documentation and the DISTRIBUTE_GROUP_DOC -# tag is set to YES, then doxygen will reuse the documentation of the first -# member in the group (if any) for the other members of the group. By default -# all members of a group must be documented explicitly. - -DISTRIBUTE_GROUP_DOC = NO - -# Set the SUBGROUPING tag to YES (the default) to allow class member groups of -# the same type (for instance a group of public functions) to be put as a -# subgroup of that type (e.g. under the Public Functions section). Set it to -# NO to prevent subgrouping. Alternatively, this can be done per class using -# the \nosubgrouping command. - -SUBGROUPING = NO - -#--------------------------------------------------------------------------- -# Build related configuration options -#--------------------------------------------------------------------------- - -# If the EXTRACT_ALL tag is set to YES doxygen will assume all entities in -# documentation are documented, even if no documentation was available. -# Private class members and static file members will be hidden unless -# the EXTRACT_PRIVATE and EXTRACT_STATIC tags are set to YES - -EXTRACT_ALL = YES - -# If the EXTRACT_PRIVATE tag is set to YES all private members of a class -# will be included in the documentation. - -EXTRACT_PRIVATE = YES - -# If the EXTRACT_STATIC tag is set to YES all static members of a file -# will be included in the documentation. - -EXTRACT_STATIC = YES - -# If the EXTRACT_LOCAL_CLASSES tag is set to YES classes (and structs) -# defined locally in source files will be included in the documentation. -# If set to NO only classes defined in header files are included. - -EXTRACT_LOCAL_CLASSES = YES - -# This flag is only useful for Objective-C code. When set to YES local -# methods, which are defined in the implementation section but not in -# the interface are included in the documentation. -# If set to NO (the default) only methods in the interface are included. - -EXTRACT_LOCAL_METHODS = YES - -# If the HIDE_UNDOC_MEMBERS tag is set to YES, Doxygen will hide all -# undocumented members of documented classes, files or namespaces. -# If set to NO (the default) these members will be included in the -# various overviews, but no documentation section is generated. -# This option has no effect if EXTRACT_ALL is enabled. - -HIDE_UNDOC_MEMBERS = NO - -# If the HIDE_UNDOC_CLASSES tag is set to YES, Doxygen will hide all -# undocumented classes that are normally visible in the class hierarchy. -# If set to NO (the default) these classes will be included in the various -# overviews. This option has no effect if EXTRACT_ALL is enabled. - -HIDE_UNDOC_CLASSES = NO - -# If the HIDE_FRIEND_COMPOUNDS tag is set to YES, Doxygen will hide all -# friend (class|struct|union) declarations. -# If set to NO (the default) these declarations will be included in the -# documentation. - -HIDE_FRIEND_COMPOUNDS = NO - -# If the HIDE_IN_BODY_DOCS tag is set to YES, Doxygen will hide any -# documentation blocks found inside the body of a function. -# If set to NO (the default) these blocks will be appended to the -# function's detailed documentation block. - -HIDE_IN_BODY_DOCS = NO - -# The INTERNAL_DOCS tag determines if documentation -# that is typed after a \internal command is included. If the tag is set -# to NO (the default) then the documentation will be excluded. -# Set it to YES to include the internal documentation. - -INTERNAL_DOCS = NO - -# If the CASE_SENSE_NAMES tag is set to NO then Doxygen will only generate -# file names in lower-case letters. If set to YES upper-case letters are also -# allowed. This is useful if you have classes or files whose names only differ -# in case and if your file system supports case sensitive file names. Windows -# and Mac users are advised to set this option to NO. - -CASE_SENSE_NAMES = NO - -# If the HIDE_SCOPE_NAMES tag is set to NO (the default) then Doxygen -# will show members with their full class and namespace scopes in the -# documentation. If set to YES the scope will be hidden. - -HIDE_SCOPE_NAMES = NO - -# If the SHOW_INCLUDE_FILES tag is set to YES (the default) then Doxygen -# will put a list of the files that are included by a file in the documentation -# of that file. - -SHOW_INCLUDE_FILES = YES - -# If the INLINE_INFO tag is set to YES (the default) then a tag [inline] -# is inserted in the documentation for inline members. - -INLINE_INFO = YES - -# If the SORT_MEMBER_DOCS tag is set to YES (the default) then doxygen -# will sort the (detailed) documentation of file and class members -# alphabetically by member name. If set to NO the members will appear in -# declaration order. - -SORT_MEMBER_DOCS = YES - -# If the SORT_BRIEF_DOCS tag is set to YES then doxygen will sort the -# brief documentation of file, namespace and class members alphabetically -# by member name. If set to NO (the default) the members will appear in -# declaration order. - -SORT_BRIEF_DOCS = NO - -# If the SORT_BY_SCOPE_NAME tag is set to YES, the class list will be -# sorted by fully-qualified names, including namespaces. If set to -# NO (the default), the class list will be sorted only by class name, -# not including the namespace part. -# Note: This option is not very useful if HIDE_SCOPE_NAMES is set to YES. -# Note: This option applies only to the class list, not to the -# alphabetical list. - -SORT_BY_SCOPE_NAME = NO - -# The GENERATE_TODOLIST tag can be used to enable (YES) or -# disable (NO) the todo list. This list is created by putting \todo -# commands in the documentation. - -GENERATE_TODOLIST = YES - -# The GENERATE_TESTLIST tag can be used to enable (YES) or -# disable (NO) the test list. This list is created by putting \test -# commands in the documentation. - -GENERATE_TESTLIST = YES - -# The GENERATE_BUGLIST tag can be used to enable (YES) or -# disable (NO) the bug list. This list is created by putting \bug -# commands in the documentation. - -GENERATE_BUGLIST = YES - -# The GENERATE_DEPRECATEDLIST tag can be used to enable (YES) or -# disable (NO) the deprecated list. This list is created by putting -# \deprecated commands in the documentation. - -GENERATE_DEPRECATEDLIST= YES - -# The ENABLED_SECTIONS tag can be used to enable conditional -# documentation sections, marked by \if sectionname ... \endif. - -ENABLED_SECTIONS = - -# The MAX_INITIALIZER_LINES tag determines the maximum number of lines -# the initial value of a variable or define consists of for it to appear in -# the documentation. If the initializer consists of more lines than specified -# here it will be hidden. Use a value of 0 to hide initializers completely. -# The appearance of the initializer of individual variables and defines in the -# documentation can be controlled using \showinitializer or \hideinitializer -# command in the documentation regardless of this setting. - -MAX_INITIALIZER_LINES = 30 - -# Set the SHOW_USED_FILES tag to NO to disable the list of files generated -# at the bottom of the documentation of classes and structs. If set to YES the -# list will mention the files that were used to generate the documentation. - -SHOW_USED_FILES = YES - -# If the sources in your project are distributed over multiple directories -# then setting the SHOW_DIRECTORIES tag to YES will show the directory hierarchy -# in the documentation. The default is NO. - -SHOW_DIRECTORIES = NO - -# The FILE_VERSION_FILTER tag can be used to specify a program or script that -# doxygen should invoke to get the current version for each file (typically from the -# version control system). Doxygen will invoke the program by executing (via -# popen()) the command , where is the value of -# the FILE_VERSION_FILTER tag, and is the name of an input file -# provided by doxygen. Whatever the program writes to standard output -# is used as the file version. See the manual for examples. - -FILE_VERSION_FILTER = - -#--------------------------------------------------------------------------- -# configuration options related to warning and progress messages -#--------------------------------------------------------------------------- - -# The QUIET tag can be used to turn on/off the messages that are generated -# by doxygen. Possible values are YES and NO. If left blank NO is used. - -QUIET = YES - -# The WARNINGS tag can be used to turn on/off the warning messages that are -# generated by doxygen. Possible values are YES and NO. If left blank -# NO is used. - -WARNINGS = YES - -# If WARN_IF_UNDOCUMENTED is set to YES, then doxygen will generate warnings -# for undocumented members. If EXTRACT_ALL is set to YES then this flag will -# automatically be disabled. - -WARN_IF_UNDOCUMENTED = YES - -# If WARN_IF_DOC_ERROR is set to YES, doxygen will generate warnings for -# potential errors in the documentation, such as not documenting some -# parameters in a documented function, or documenting parameters that -# don't exist or using markup commands wrongly. - -WARN_IF_DOC_ERROR = YES - -# This WARN_NO_PARAMDOC option can be abled to get warnings for -# functions that are documented, but have no documentation for their parameters -# or return value. If set to NO (the default) doxygen will only warn about -# wrong or incomplete parameter documentation, but not about the absence of -# documentation. - -WARN_NO_PARAMDOC = NO - -# The WARN_FORMAT tag determines the format of the warning messages that -# doxygen can produce. The string should contain the $file, $line, and $text -# tags, which will be replaced by the file and line number from which the -# warning originated and the warning text. Optionally the format may contain -# $version, which will be replaced by the version of the file (if it could -# be obtained via FILE_VERSION_FILTER) - -WARN_FORMAT = "$file:$line: $text" - -# The WARN_LOGFILE tag can be used to specify a file to which warning - -# and error messages should be written. If left blank the output is written -# to stderr. - -WARN_LOGFILE = - -#--------------------------------------------------------------------------- -# configuration options related to the input files -#--------------------------------------------------------------------------- - -# The INPUT tag can be used to specify the files and/or directories that contain -# documented source files. You may enter file names like "myfile.cpp" or -# directories like "/usr/src/myproject". Separate the files or directories -# with spaces. - -INPUT = ../src/yajl ../src/api - -# This tag can be used to specify the character encoding of the source files that -# doxygen parses. Internally doxygen uses the UTF-8 encoding, which is also the default -# input encoding. Doxygen uses libiconv (or the iconv built into libc) for the transcoding. -# See http://www.gnu.org/software/libiconv for the list of possible encodings. - -INPUT_ENCODING = UTF-8 - -# If the value of the INPUT tag contains directories, you can use the -# FILE_PATTERNS tag to specify one or more wildcard pattern (like *.cpp -# and *.h) to filter out the source-files in the directories. If left -# blank the following patterns are tested: -# *.c *.cc *.cxx *.cpp *.c++ *.java *.ii *.ixx *.ipp *.i++ *.inl *.h *.hh *.hxx -# *.hpp *.h++ *.idl *.odl *.cs *.php *.php3 *.inc *.m *.mm *.py - -FILE_PATTERNS = *.h - -# The RECURSIVE tag can be used to turn specify whether or not subdirectories -# should be searched for input files as well. Possible values are YES and NO. -# If left blank NO is used. - -RECURSIVE = NO - -# The EXCLUDE tag can be used to specify files and/or directories that should -# excluded from the INPUT source files. This way you can easily exclude a -# subdirectory from a directory tree whose root is specified with the INPUT tag. - -EXCLUDE = - -# The EXCLUDE_SYMLINKS tag can be used select whether or not files or -# directories that are symbolic links (a Unix filesystem feature) are excluded -# from the input. - -EXCLUDE_SYMLINKS = NO - -# If the value of the INPUT tag contains directories, you can use the -# EXCLUDE_PATTERNS tag to specify one or more wildcard patterns to exclude -# certain files from those directories. Note that the wildcards are matched -# against the file with absolute path, so to exclude all test directories -# for example use the pattern */test/* - -EXCLUDE_PATTERNS = - -# The EXCLUDE_SYMBOLS tag can be used to specify one or more symbol names -# (namespaces, classes, functions, etc.) that should be excluded from the output. -# The symbol name can be a fully qualified name, a word, or if the wildcard * is used, -# a substring. Examples: ANamespace, AClass, AClass::ANamespace, ANamespace::*Test - -EXCLUDE_SYMBOLS = - -# The EXAMPLE_PATH tag can be used to specify one or more files or -# directories that contain example code fragments that are included (see -# the \include command). - -EXAMPLE_PATH = - -# If the value of the EXAMPLE_PATH tag contains directories, you can use the -# EXAMPLE_PATTERNS tag to specify one or more wildcard pattern (like *.cpp -# and *.h) to filter out the source-files in the directories. If left -# blank all files are included. - -EXAMPLE_PATTERNS = - -# If the EXAMPLE_RECURSIVE tag is set to YES then subdirectories will be -# searched for input files to be used with the \include or \dontinclude -# commands irrespective of the value of the RECURSIVE tag. -# Possible values are YES and NO. If left blank NO is used. - -EXAMPLE_RECURSIVE = NO - -# The IMAGE_PATH tag can be used to specify one or more files or -# directories that contain image that are included in the documentation (see -# the \image command). - -IMAGE_PATH = - -# The INPUT_FILTER tag can be used to specify a program that doxygen should -# invoke to filter for each input file. Doxygen will invoke the filter program -# by executing (via popen()) the command , where -# is the value of the INPUT_FILTER tag, and is the name of an -# input file. Doxygen will then use the output that the filter program writes -# to standard output. If FILTER_PATTERNS is specified, this tag will be -# ignored. - -INPUT_FILTER = - -# The FILTER_PATTERNS tag can be used to specify filters on a per file pattern -# basis. Doxygen will compare the file name with each pattern and apply the -# filter if there is a match. The filters are a list of the form: -# pattern=filter (like *.cpp=my_cpp_filter). See INPUT_FILTER for further -# info on how filters are used. If FILTER_PATTERNS is empty, INPUT_FILTER -# is applied to all files. - -FILTER_PATTERNS = - -# If the FILTER_SOURCE_FILES tag is set to YES, the input filter (if set using -# INPUT_FILTER) will be used to filter the input files when producing source -# files to browse (i.e. when SOURCE_BROWSER is set to YES). - -FILTER_SOURCE_FILES = NO - -#--------------------------------------------------------------------------- -# configuration options related to source browsing -#--------------------------------------------------------------------------- - -# If the SOURCE_BROWSER tag is set to YES then a list of source files will -# be generated. Documented entities will be cross-referenced with these sources. -# Note: To get rid of all source code in the generated output, make sure also -# VERBATIM_HEADERS is set to NO. - -SOURCE_BROWSER = NO - -# Setting the INLINE_SOURCES tag to YES will include the body -# of functions and classes directly in the documentation. - -INLINE_SOURCES = NO - -# Setting the STRIP_CODE_COMMENTS tag to YES (the default) will instruct -# doxygen to hide any special comment blocks from generated source code -# fragments. Normal C and C++ comments will always remain visible. - -STRIP_CODE_COMMENTS = YES - -# If the REFERENCED_BY_RELATION tag is set to YES (the default) -# then for each documented function all documented -# functions referencing it will be listed. - -REFERENCED_BY_RELATION = YES - -# If the REFERENCES_RELATION tag is set to YES (the default) -# then for each documented function all documented entities -# called/used by that function will be listed. - -REFERENCES_RELATION = YES - -# If the REFERENCES_LINK_SOURCE tag is set to YES (the default) -# and SOURCE_BROWSER tag is set to YES, then the hyperlinks from -# functions in REFERENCES_RELATION and REFERENCED_BY_RELATION lists will -# link to the source code. Otherwise they will link to the documentstion. - -REFERENCES_LINK_SOURCE = YES - -# If the USE_HTAGS tag is set to YES then the references to source code -# will point to the HTML generated by the htags(1) tool instead of doxygen -# built-in source browser. The htags tool is part of GNU's global source -# tagging system (see http://www.gnu.org/software/global/global.html). You -# will need version 4.8.6 or higher. - -USE_HTAGS = NO - -# If the VERBATIM_HEADERS tag is set to YES (the default) then Doxygen -# will generate a verbatim copy of the header file for each class for -# which an include is specified. Set to NO to disable this. - -VERBATIM_HEADERS = YES - -#--------------------------------------------------------------------------- -# configuration options related to the alphabetical class index -#--------------------------------------------------------------------------- - -# If the ALPHABETICAL_INDEX tag is set to YES, an alphabetical index -# of all compounds will be generated. Enable this if the project -# contains a lot of classes, structs, unions or interfaces. - -ALPHABETICAL_INDEX = NO - -# If the alphabetical index is enabled (see ALPHABETICAL_INDEX) then -# the COLS_IN_ALPHA_INDEX tag can be used to specify the number of columns -# in which this list will be split (can be a number in the range [1..20]) - -COLS_IN_ALPHA_INDEX = 5 - -# In case all classes in a project start with a common prefix, all -# classes will be put under the same header in the alphabetical index. -# The IGNORE_PREFIX tag can be used to specify one or more prefixes that -# should be ignored while generating the index headers. - -IGNORE_PREFIX = - -#--------------------------------------------------------------------------- -# configuration options related to the HTML output -#--------------------------------------------------------------------------- - -# If the GENERATE_HTML tag is set to YES (the default) Doxygen will -# generate HTML output. - -GENERATE_HTML = YES - -# The HTML_OUTPUT tag is used to specify where the HTML docs will be put. -# If a relative path is entered the value of OUTPUT_DIRECTORY will be -# put in front of it. If left blank `html' will be used as the default path. - -HTML_OUTPUT = doc/yajl-@YAJL_VERSION@ - -# The HTML_FILE_EXTENSION tag can be used to specify the file extension for -# each generated HTML page (for example: .htm,.php,.asp). If it is left blank -# doxygen will generate files with .html extension. - -HTML_FILE_EXTENSION = .html - -# The HTML_HEADER tag can be used to specify a personal HTML header for -# each generated HTML page. If it is left blank doxygen will generate a -# standard header. - -HTML_HEADER = - -# The HTML_FOOTER tag can be used to specify a personal HTML footer for -# each generated HTML page. If it is left blank doxygen will generate a -# standard footer. - -HTML_FOOTER = - -# The HTML_STYLESHEET tag can be used to specify a user-defined cascading -# style sheet that is used by each HTML page. It can be used to -# fine-tune the look of the HTML output. If the tag is left blank doxygen -# will generate a default style sheet. Note that doxygen will try to copy -# the style sheet file to the HTML output directory, so don't put your own -# stylesheet in the HTML output directory as well, or it will be erased! - -HTML_STYLESHEET = - -# If the HTML_ALIGN_MEMBERS tag is set to YES, the members of classes, -# files or namespaces will be aligned in HTML using tables. If set to -# NO a bullet list will be used. - -HTML_ALIGN_MEMBERS = YES - -# If the GENERATE_HTMLHELP tag is set to YES, additional index files -# will be generated that can be used as input for tools like the -# Microsoft HTML help workshop to generate a compressed HTML help file (.chm) -# of the generated HTML documentation. - -GENERATE_HTMLHELP = NO - -# If the GENERATE_HTMLHELP tag is set to YES, the CHM_FILE tag can -# be used to specify the file name of the resulting .chm file. You -# can add a path in front of the file if the result should not be -# written to the html output directory. - -CHM_FILE = - -# If the GENERATE_HTMLHELP tag is set to YES, the HHC_LOCATION tag can -# be used to specify the location (absolute path including file name) of -# the HTML help compiler (hhc.exe). If non-empty doxygen will try to run -# the HTML help compiler on the generated index.hhp. - -HHC_LOCATION = - -# If the GENERATE_HTMLHELP tag is set to YES, the GENERATE_CHI flag -# controls if a separate .chi index file is generated (YES) or that -# it should be included in the master .chm file (NO). - -GENERATE_CHI = NO - -# If the GENERATE_HTMLHELP tag is set to YES, the BINARY_TOC flag -# controls whether a binary table of contents is generated (YES) or a -# normal table of contents (NO) in the .chm file. - -BINARY_TOC = NO - -# The TOC_EXPAND flag can be set to YES to add extra items for group members -# to the contents of the HTML help documentation and to the tree view. - -TOC_EXPAND = NO - -# The DISABLE_INDEX tag can be used to turn on/off the condensed index at -# top of each HTML page. The value NO (the default) enables the index and -# the value YES disables it. - -DISABLE_INDEX = NO - -# This tag can be used to set the number of enum values (range [1..20]) -# that doxygen will group on one line in the generated HTML documentation. - -ENUM_VALUES_PER_LINE = 4 - -# If the GENERATE_TREEVIEW tag is set to YES, a side panel will be -# generated containing a tree-like index structure (just like the one that -# is generated for HTML Help). For this to work a browser that supports -# JavaScript, DHTML, CSS and frames is required (for instance Mozilla 1.0+, -# Netscape 6.0+, Internet explorer 5.0+, or Konqueror). Windows users are -# probably better off using the HTML help feature. - -GENERATE_TREEVIEW = NO - -# If the treeview is enabled (see GENERATE_TREEVIEW) then this tag can be -# used to set the initial width (in pixels) of the frame in which the tree -# is shown. - -TREEVIEW_WIDTH = 250 - -#--------------------------------------------------------------------------- -# configuration options related to the LaTeX output -#--------------------------------------------------------------------------- - -# If the GENERATE_LATEX tag is set to YES (the default) Doxygen will -# generate Latex output. - -GENERATE_LATEX = NO - -# The LATEX_OUTPUT tag is used to specify where the LaTeX docs will be put. -# If a relative path is entered the value of OUTPUT_DIRECTORY will be -# put in front of it. If left blank `latex' will be used as the default path. - -LATEX_OUTPUT = latex - -# The LATEX_CMD_NAME tag can be used to specify the LaTeX command name to be -# invoked. If left blank `latex' will be used as the default command name. - -LATEX_CMD_NAME = latex - -# The MAKEINDEX_CMD_NAME tag can be used to specify the command name to -# generate index for LaTeX. If left blank `makeindex' will be used as the -# default command name. - -MAKEINDEX_CMD_NAME = makeindex - -# If the COMPACT_LATEX tag is set to YES Doxygen generates more compact -# LaTeX documents. This may be useful for small projects and may help to -# save some trees in general. - -COMPACT_LATEX = NO - -# The PAPER_TYPE tag can be used to set the paper type that is used -# by the printer. Possible values are: a4, a4wide, letter, legal and -# executive. If left blank a4wide will be used. - -PAPER_TYPE = a4wide - -# The EXTRA_PACKAGES tag can be to specify one or more names of LaTeX -# packages that should be included in the LaTeX output. - -EXTRA_PACKAGES = - -# The LATEX_HEADER tag can be used to specify a personal LaTeX header for -# the generated latex document. The header should contain everything until -# the first chapter. If it is left blank doxygen will generate a -# standard header. Notice: only use this tag if you know what you are doing! - -LATEX_HEADER = - -# If the PDF_HYPERLINKS tag is set to YES, the LaTeX that is generated -# is prepared for conversion to pdf (using ps2pdf). The pdf file will -# contain links (just like the HTML output) instead of page references -# This makes the output suitable for online browsing using a pdf viewer. - -PDF_HYPERLINKS = NO - -# If the USE_PDFLATEX tag is set to YES, pdflatex will be used instead of -# plain latex in the generated Makefile. Set this option to YES to get a -# higher quality PDF documentation. - -USE_PDFLATEX = NO - -# If the LATEX_BATCHMODE tag is set to YES, doxygen will add the \\batchmode. -# command to the generated LaTeX files. This will instruct LaTeX to keep -# running if errors occur, instead of asking the user for help. -# This option is also used when generating formulas in HTML. - -LATEX_BATCHMODE = NO - -# If LATEX_HIDE_INDICES is set to YES then doxygen will not -# include the index chapters (such as File Index, Compound Index, etc.) -# in the output. - -LATEX_HIDE_INDICES = NO - -#--------------------------------------------------------------------------- -# configuration options related to the RTF output -#--------------------------------------------------------------------------- - -# If the GENERATE_RTF tag is set to YES Doxygen will generate RTF output -# The RTF output is optimized for Word 97 and may not look very pretty with -# other RTF readers or editors. - -GENERATE_RTF = NO - -# The RTF_OUTPUT tag is used to specify where the RTF docs will be put. -# If a relative path is entered the value of OUTPUT_DIRECTORY will be -# put in front of it. If left blank `rtf' will be used as the default path. - -RTF_OUTPUT = rtf - -# If the COMPACT_RTF tag is set to YES Doxygen generates more compact -# RTF documents. This may be useful for small projects and may help to -# save some trees in general. - -COMPACT_RTF = NO - -# If the RTF_HYPERLINKS tag is set to YES, the RTF that is generated -# will contain hyperlink fields. The RTF file will -# contain links (just like the HTML output) instead of page references. -# This makes the output suitable for online browsing using WORD or other -# programs which support those fields. -# Note: wordpad (write) and others do not support links. - -RTF_HYPERLINKS = NO - -# Load stylesheet definitions from file. Syntax is similar to doxygen's -# config file, i.e. a series of assignments. You only have to provide -# replacements, missing definitions are set to their default value. - -RTF_STYLESHEET_FILE = - -# Set optional variables used in the generation of an rtf document. -# Syntax is similar to doxygen's config file. - -RTF_EXTENSIONS_FILE = - -#--------------------------------------------------------------------------- -# configuration options related to the man page output -#--------------------------------------------------------------------------- - -# If the GENERATE_MAN tag is set to YES (the default) Doxygen will -# generate man pages - -GENERATE_MAN = YES - -# The MAN_OUTPUT tag is used to specify where the man pages will be put. -# If a relative path is entered the value of OUTPUT_DIRECTORY will be -# put in front of it. If left blank `man' will be used as the default path. - -MAN_OUTPUT = man - -# The MAN_EXTENSION tag determines the extension that is added to -# the generated man pages (default is the subroutine's section .3) - -MAN_EXTENSION = .3 - -# If the MAN_LINKS tag is set to YES and Doxygen generates man output, -# then it will generate one additional man file for each entity -# documented in the real man page(s). These additional files -# only source the real man page, but without them the man command -# would be unable to find the correct page. The default is NO. - -MAN_LINKS = NO - -#--------------------------------------------------------------------------- -# configuration options related to the XML output -#--------------------------------------------------------------------------- - -# If the GENERATE_XML tag is set to YES Doxygen will -# generate an XML file that captures the structure of -# the code including all documentation. - -GENERATE_XML = NO - -# The XML_OUTPUT tag is used to specify where the XML pages will be put. -# If a relative path is entered the value of OUTPUT_DIRECTORY will be -# put in front of it. If left blank `xml' will be used as the default path. - -XML_OUTPUT = xml - -# The XML_SCHEMA tag can be used to specify an XML schema, -# which can be used by a validating XML parser to check the -# syntax of the XML files. - -XML_SCHEMA = - -# The XML_DTD tag can be used to specify an XML DTD, -# which can be used by a validating XML parser to check the -# syntax of the XML files. - -XML_DTD = - -# If the XML_PROGRAMLISTING tag is set to YES Doxygen will -# dump the program listings (including syntax highlighting -# and cross-referencing information) to the XML output. Note that -# enabling this will significantly increase the size of the XML output. - -XML_PROGRAMLISTING = YES - -#--------------------------------------------------------------------------- -# configuration options for the AutoGen Definitions output -#--------------------------------------------------------------------------- - -# If the GENERATE_AUTOGEN_DEF tag is set to YES Doxygen will -# generate an AutoGen Definitions (see autogen.sf.net) file -# that captures the structure of the code including all -# documentation. Note that this feature is still experimental -# and incomplete at the moment. - -GENERATE_AUTOGEN_DEF = NO - -#--------------------------------------------------------------------------- -# configuration options related to the Perl module output -#--------------------------------------------------------------------------- - -# If the GENERATE_PERLMOD tag is set to YES Doxygen will -# generate a Perl module file that captures the structure of -# the code including all documentation. Note that this -# feature is still experimental and incomplete at the -# moment. - -GENERATE_PERLMOD = NO - -# If the PERLMOD_LATEX tag is set to YES Doxygen will generate -# the necessary Makefile rules, Perl scripts and LaTeX code to be able -# to generate PDF and DVI output from the Perl module output. - -PERLMOD_LATEX = NO - -# If the PERLMOD_PRETTY tag is set to YES the Perl module output will be -# nicely formatted so it can be parsed by a human reader. This is useful -# if you want to understand what is going on. On the other hand, if this -# tag is set to NO the size of the Perl module output will be much smaller -# and Perl will parse it just the same. - -PERLMOD_PRETTY = YES - -# The names of the make variables in the generated doxyrules.make file -# are prefixed with the string contained in PERLMOD_MAKEVAR_PREFIX. -# This is useful so different doxyrules.make files included by the same -# Makefile don't overwrite each other's variables. - -PERLMOD_MAKEVAR_PREFIX = - -#--------------------------------------------------------------------------- -# Configuration options related to the preprocessor -#--------------------------------------------------------------------------- - -# If the ENABLE_PREPROCESSING tag is set to YES (the default) Doxygen will -# evaluate all C-preprocessor directives found in the sources and include -# files. - -ENABLE_PREPROCESSING = YES - -# If the MACRO_EXPANSION tag is set to YES Doxygen will expand all macro -# names in the source code. If set to NO (the default) only conditional -# compilation will be performed. Macro expansion can be done in a controlled -# way by setting EXPAND_ONLY_PREDEF to YES. - -MACRO_EXPANSION = YES - -# If the EXPAND_ONLY_PREDEF and MACRO_EXPANSION tags are both set to YES -# then the macro expansion is limited to the macros specified with the -# PREDEFINED and EXPAND_AS_DEFINED tags. - -EXPAND_ONLY_PREDEF = NO - -# If the SEARCH_INCLUDES tag is set to YES (the default) the includes files -# in the INCLUDE_PATH (see below) will be search if a #include is found. - -SEARCH_INCLUDES = YES - -# The INCLUDE_PATH tag can be used to specify one or more directories that -# contain include files that are not input files but should be processed by -# the preprocessor. - -INCLUDE_PATH = - -# You can use the INCLUDE_FILE_PATTERNS tag to specify one or more wildcard -# patterns (like *.h and *.hpp) to filter out the header-files in the -# directories. If left blank, the patterns specified with FILE_PATTERNS will -# be used. - -INCLUDE_FILE_PATTERNS = - -# The PREDEFINED tag can be used to specify one or more macro names that -# are defined before the preprocessor is started (similar to the -D option of -# gcc). The argument of the tag is a list of macros of the form: name -# or name=definition (no spaces). If the definition and the = are -# omitted =1 is assumed. To prevent a macro definition from being -# undefined via #undef or recursively expanded use the := operator -# instead of the = operator. - -PREDEFINED = - -# If the MACRO_EXPANSION and EXPAND_ONLY_PREDEF tags are set to YES then -# this tag can be used to specify a list of macro names that should be expanded. -# The macro definition that is found in the sources will be used. -# Use the PREDEFINED tag if you want to use a different macro definition. - -EXPAND_AS_DEFINED = - -# If the SKIP_FUNCTION_MACROS tag is set to YES (the default) then -# doxygen's preprocessor will remove all function-like macros that are alone -# on a line, have an all uppercase name, and do not end with a semicolon. Such -# function macros are typically used for boiler-plate code, and will confuse -# the parser if not removed. - -SKIP_FUNCTION_MACROS = YES - -#--------------------------------------------------------------------------- -# Configuration::additions related to external references -#--------------------------------------------------------------------------- - -# The TAGFILES option can be used to specify one or more tagfiles. -# Optionally an initial location of the external documentation -# can be added for each tagfile. The format of a tag file without -# this location is as follows: -# TAGFILES = file1 file2 ... -# Adding location for the tag files is done as follows: -# TAGFILES = file1=loc1 "file2 = loc2" ... -# where "loc1" and "loc2" can be relative or absolute paths or -# URLs. If a location is present for each tag, the installdox tool -# does not have to be run to correct the links. -# Note that each tag file must have a unique name -# (where the name does NOT include the path) -# If a tag file is not located in the directory in which doxygen -# is run, you must also specify the path to the tagfile here. - -TAGFILES = - -# When a file name is specified after GENERATE_TAGFILE, doxygen will create -# a tag file that is based on the input files it reads. - -GENERATE_TAGFILE = - -# If the ALLEXTERNALS tag is set to YES all external classes will be listed -# in the class index. If set to NO only the inherited external classes -# will be listed. - -ALLEXTERNALS = NO - -# If the EXTERNAL_GROUPS tag is set to YES all external groups will be listed -# in the modules index. If set to NO, only the current project's groups will -# be listed. - -EXTERNAL_GROUPS = YES - -# The PERL_PATH should be the absolute path and name of the perl script -# interpreter (i.e. the result of `which perl'). - -PERL_PATH = /usr/bin/perl - -#--------------------------------------------------------------------------- -# Configuration options related to the dot tool -#--------------------------------------------------------------------------- - -# If the CLASS_DIAGRAMS tag is set to YES (the default) Doxygen will -# generate a inheritance diagram (in HTML, RTF and LaTeX) for classes with base -# or super classes. Setting the tag to NO turns the diagrams off. Note that -# this option is superseded by the HAVE_DOT option below. This is only a -# fallback. It is recommended to install and use dot, since it yields more -# powerful graphs. - -CLASS_DIAGRAMS = YES - -# You can define message sequence charts within doxygen comments using the \msc -# command. Doxygen will then run the mscgen tool (see http://www.mcternan.me.uk/mscgen/) to -# produce the chart and insert it in the documentation. The MSCGEN_PATH tag allows you to -# specify the directory where the mscgen tool resides. If left empty the tool is assumed to -# be found in the default search path. - -MSCGEN_PATH = - -# If set to YES, the inheritance and collaboration graphs will hide -# inheritance and usage relations if the target is undocumented -# or is not a class. - -HIDE_UNDOC_RELATIONS = YES - -# If you set the HAVE_DOT tag to YES then doxygen will assume the dot tool is -# available from the path. This tool is part of Graphviz, a graph visualization -# toolkit from AT&T and Lucent Bell Labs. The other options in this section -# have no effect if this option is set to NO (the default) - -HAVE_DOT = NO - -# If the CLASS_GRAPH and HAVE_DOT tags are set to YES then doxygen -# will generate a graph for each documented class showing the direct and -# indirect inheritance relations. Setting this tag to YES will force the -# the CLASS_DIAGRAMS tag to NO. - -CLASS_GRAPH = YES - -# If the COLLABORATION_GRAPH and HAVE_DOT tags are set to YES then doxygen -# will generate a graph for each documented class showing the direct and -# indirect implementation dependencies (inheritance, containment, and -# class references variables) of the class with other documented classes. - -COLLABORATION_GRAPH = YES - -# If the GROUP_GRAPHS and HAVE_DOT tags are set to YES then doxygen -# will generate a graph for groups, showing the direct groups dependencies - -GROUP_GRAPHS = YES - -# If the UML_LOOK tag is set to YES doxygen will generate inheritance and -# collaboration diagrams in a style similar to the OMG's Unified Modeling -# Language. - -UML_LOOK = NO - -# If set to YES, the inheritance and collaboration graphs will show the -# relations between templates and their instances. - -TEMPLATE_RELATIONS = NO - -# If the ENABLE_PREPROCESSING, SEARCH_INCLUDES, INCLUDE_GRAPH, and HAVE_DOT -# tags are set to YES then doxygen will generate a graph for each documented -# file showing the direct and indirect include dependencies of the file with -# other documented files. - -INCLUDE_GRAPH = YES - -# If the ENABLE_PREPROCESSING, SEARCH_INCLUDES, INCLUDED_BY_GRAPH, and -# HAVE_DOT tags are set to YES then doxygen will generate a graph for each -# documented header file showing the documented files that directly or -# indirectly include this file. - -INCLUDED_BY_GRAPH = YES - -# If the CALL_GRAPH and HAVE_DOT tags are set to YES then doxygen will -# generate a call dependency graph for every global function or class method. -# Note that enabling this option will significantly increase the time of a run. -# So in most cases it will be better to enable call graphs for selected -# functions only using the \callgraph command. - -CALL_GRAPH = NO - -# If the CALLER_GRAPH and HAVE_DOT tags are set to YES then doxygen will -# generate a caller dependency graph for every global function or class method. -# Note that enabling this option will significantly increase the time of a run. -# So in most cases it will be better to enable caller graphs for selected -# functions only using the \callergraph command. - -CALLER_GRAPH = NO - -# If the GRAPHICAL_HIERARCHY and HAVE_DOT tags are set to YES then doxygen -# will graphical hierarchy of all classes instead of a textual one. - -GRAPHICAL_HIERARCHY = YES - -# If the DIRECTORY_GRAPH, SHOW_DIRECTORIES and HAVE_DOT tags are set to YES -# then doxygen will show the dependencies a directory has on other directories -# in a graphical way. The dependency relations are determined by the #include -# relations between the files in the directories. - -DIRECTORY_GRAPH = YES - -# The DOT_IMAGE_FORMAT tag can be used to set the image format of the images -# generated by dot. Possible values are png, jpg, or gif -# If left blank png will be used. - -DOT_IMAGE_FORMAT = png - -# The tag DOT_PATH can be used to specify the path where the dot tool can be -# found. If left blank, it is assumed the dot tool can be found in the path. - -DOT_PATH = - -# The DOTFILE_DIRS tag can be used to specify one or more directories that -# contain dot files that are included in the documentation (see the -# \dotfile command). - -DOTFILE_DIRS = - -# The MAX_DOT_GRAPH_MAX_NODES tag can be used to set the maximum number of -# nodes that will be shown in the graph. If the number of nodes in a graph -# becomes larger than this value, doxygen will truncate the graph, which is -# visualized by representing a node as a red box. Note that doxygen will always -# show the root nodes and its direct children regardless of this setting. - -DOT_GRAPH_MAX_NODES = 50 - -# Set the DOT_TRANSPARENT tag to YES to generate images with a transparent -# background. This is disabled by default, which results in a white background. -# Warning: Depending on the platform used, enabling this option may lead to -# badly anti-aliased labels on the edges of a graph (i.e. they become hard to -# read). - -DOT_TRANSPARENT = NO - -# Set the DOT_MULTI_TARGETS tag to YES allow dot to generate multiple output -# files in one run (i.e. multiple -o and -T options on the command line). This -# makes dot run faster, but since only newer versions of dot (>1.8.10) -# support this, this feature is disabled by default. - -DOT_MULTI_TARGETS = NO - -# If the GENERATE_LEGEND tag is set to YES (the default) Doxygen will -# generate a legend page explaining the meaning of the various boxes and -# arrows in the dot generated graphs. - -GENERATE_LEGEND = YES - -# If the DOT_CLEANUP tag is set to YES (the default) Doxygen will -# remove the intermediate dot files that are used to generate -# the various graphs. - -DOT_CLEANUP = YES - -#--------------------------------------------------------------------------- -# Configuration::additions related to the search engine -#--------------------------------------------------------------------------- - -# The SEARCHENGINE tag specifies whether or not a search engine should be -# used. If set to NO the values of all tags below this one will be ignored. - -SEARCHENGINE = NO diff --git a/jcnf/yajl/YAJLDoc.cmake b/jcnf/yajl/YAJLDoc.cmake deleted file mode 100644 index 049cdef..0000000 --- a/jcnf/yajl/YAJLDoc.cmake +++ /dev/null @@ -1,26 +0,0 @@ -FIND_PROGRAM(doxygenPath doxygen) - -IF (doxygenPath) - SET (YAJL_VERSION ${YAJL_MAJOR}.${YAJL_MINOR}.${YAJL_MICRO}) - SET(yajlDirName yajl-${YAJL_VERSION}) - SET(docPath - "${CMAKE_CURRENT_BINARY_DIR}/${yajlDirName}/share/doc/${yajlDirName}") - MESSAGE("** using doxygen at: ${doxygenPath}") - MESSAGE("** documentation output to: ${docPath}") - - CONFIGURE_FILE(${CMAKE_CURRENT_SOURCE_DIR}/src/YAJL.dxy - ${CMAKE_CURRENT_BINARY_DIR}/YAJL.dxy @ONLY) - - FILE(MAKE_DIRECTORY "${docPath}") - - ADD_CUSTOM_TARGET(doc - ${doxygenPath} YAJL.dxy - WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}) - -ELSE (doxygenPath) - MESSAGE("!! doxygen not found, not generating documentation") - ADD_CUSTOM_TARGET( - doc - echo doxygen not installed, not generating documentation - ) -ENDIF (doxygenPath) diff --git a/jcnf/yajl/afiles b/jcnf/yajl/afiles deleted file mode 100644 index 23cf626..0000000 --- a/jcnf/yajl/afiles +++ /dev/null @@ -1,84 +0,0 @@ -afiles -COPYING -ChangeLog -Jamfile -README -TODO -YAJL.dxy -YAJLDoc.cmake -configure -json_reformat.c -json_verify.c -rfc4627.txt -run_tests.sh -yajl.c -yajl_alloc.c -yajl_alloc.h -yajl_buf.c -yajl_buf.h -yajl_bytestack.h -yajl_common.h -yajl_encode.c -yajl_encode.h -yajl_gen.c -yajl_gen.h -yajl_lex.c -yajl_lex.h -yajl_parse.h -yajl_parser.c -yajl_parser.h -yajl_test.c -cases/array.json -cases/array.json.gold -cases/bogus_char.json -cases/bogus_char.json.gold -cases/codepoints_from_unicode_org.json -cases/codepoints_from_unicode_org.json.gold -cases/dc_simple_with_comments.json -cases/dc_simple_with_comments.json.gold -cases/deep_arrays.json -cases/deep_arrays.json.gold -cases/difficult_json_c_test_case.json -cases/difficult_json_c_test_case.json.gold -cases/difficult_json_c_test_case_with_comments.json -cases/difficult_json_c_test_case_with_comments.json.gold -cases/doubles.json -cases/doubles.json.gold -cases/empty_array.json -cases/empty_array.json.gold -cases/escaped_bulgarian.json -cases/escaped_bulgarian.json.gold -cases/escaped_foobar.json -cases/escaped_foobar.json.gold -cases/integers.json -cases/integers.json.gold -cases/invalid_utf8.json -cases/invalid_utf8.json.gold -cases/isolated_surrogate_marker.json -cases/isolated_surrogate_marker.json.gold -cases/leading_zero_in_number.json -cases/leading_zero_in_number.json.gold -cases/lonely_minus_sign.json -cases/lonely_minus_sign.json.gold -cases/missing_integer_after_decimal_point.json -cases/missing_integer_after_decimal_point.json.gold -cases/missing_integer_after_exponent.json -cases/missing_integer_after_exponent.json.gold -cases/non_utf8_char_in_string.json -cases/non_utf8_char_in_string.json.gold -cases/nulls_and_bools.json -cases/nulls_and_bools.json.gold -cases/simple.json -cases/simple.json.gold -cases/simple_with_comments.json -cases/simple_with_comments.json.gold -cases/string_invalid_escape.json -cases/string_invalid_escape.json.gold -cases/string_invalid_hex_char.json -cases/string_invalid_hex_char.json.gold -cases/string_with_escapes.json -cases/string_with_escapes.json.gold -cases/string_with_invalid_newline.json -cases/string_with_invalid_newline.json.gold -cases/unescaped_bulgarian.json -cases/unescaped_bulgarian.json.gold diff --git a/jcnf/yajl/cases/array.json b/jcnf/yajl/cases/array.json deleted file mode 100644 index f76058d..0000000 --- a/jcnf/yajl/cases/array.json +++ /dev/null @@ -1,6 +0,0 @@ -["foo", - "bar", "baz", - true,false,null,{"key":"value"}, - [null,null,null,[]], - "\n\r\\" -] diff --git a/jcnf/yajl/cases/array.json.gold b/jcnf/yajl/cases/array.json.gold deleted file mode 100644 index d77e716..0000000 --- a/jcnf/yajl/cases/array.json.gold +++ /dev/null @@ -1,22 +0,0 @@ -array open '[' -string: 'foo' -string: 'bar' -string: 'baz' -bool: true -bool: false -null -map open '{' -key: 'key' -string: 'value' -map close '}' -array open '[' -null -null -null -array open '[' -array close ']' -array close ']' -string: ' - -\' -array close ']' diff --git a/jcnf/yajl/cases/bogus_char.json b/jcnf/yajl/cases/bogus_char.json deleted file mode 100644 index 8163bd8..0000000 --- a/jcnf/yajl/cases/bogus_char.json +++ /dev/null @@ -1,4 +0,0 @@ -["this","is","what","should","be", - "a happy bit of json", - "but someone, misspelled \"true\"", ture, - "who says JSON is easy for humans to generate?"] diff --git a/jcnf/yajl/cases/bogus_char.json.gold b/jcnf/yajl/cases/bogus_char.json.gold deleted file mode 100644 index ccbeed5..0000000 --- a/jcnf/yajl/cases/bogus_char.json.gold +++ /dev/null @@ -1,9 +0,0 @@ -array open '[' -string: 'this' -string: 'is' -string: 'what' -string: 'should' -string: 'be' -string: 'a happy bit of json' -string: 'but someone, misspelled "true"' -lexical error: invalid string in json text. diff --git a/jcnf/yajl/cases/codepoints_from_unicode_org.json b/jcnf/yajl/cases/codepoints_from_unicode_org.json deleted file mode 100644 index f91f3be..0000000 --- a/jcnf/yajl/cases/codepoints_from_unicode_org.json +++ /dev/null @@ -1 +0,0 @@ -"\u004d\u0430\u4e8c\ud800\udf02" diff --git a/jcnf/yajl/cases/codepoints_from_unicode_org.json.gold b/jcnf/yajl/cases/codepoints_from_unicode_org.json.gold deleted file mode 100644 index 12b358a..0000000 --- a/jcnf/yajl/cases/codepoints_from_unicode_org.json.gold +++ /dev/null @@ -1 +0,0 @@ -string: 'Mа二ðŒ‚' diff --git a/jcnf/yajl/cases/dc_simple_with_comments.json b/jcnf/yajl/cases/dc_simple_with_comments.json deleted file mode 100644 index 3b79bba..0000000 --- a/jcnf/yajl/cases/dc_simple_with_comments.json +++ /dev/null @@ -1,11 +0,0 @@ -{ - "this": "is", // ignore this - "really": "simple", - /* ignore -this -too * / -** // -(/ -******/ - "json": "right?" -} diff --git a/jcnf/yajl/cases/dc_simple_with_comments.json.gold b/jcnf/yajl/cases/dc_simple_with_comments.json.gold deleted file mode 100644 index 92be7a5..0000000 --- a/jcnf/yajl/cases/dc_simple_with_comments.json.gold +++ /dev/null @@ -1,4 +0,0 @@ -map open '{' -key: 'this' -string: 'is' -lexical error: probable comment found in input text, comments are not enabled. diff --git a/jcnf/yajl/cases/deep_arrays.json b/jcnf/yajl/cases/deep_arrays.json deleted file mode 100644 index 82d1b0d..0000000 --- a/jcnf/yajl/cases/deep_arrays.json +++ /dev/null @@ -1 +0,0 @@ -[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]] \ No newline at end of file diff --git a/jcnf/yajl/cases/deep_arrays.json.gold b/jcnf/yajl/cases/deep_arrays.json.gold deleted file mode 100644 index e549637..0000000 --- a/jcnf/yajl/cases/deep_arrays.json.gold +++ /dev/null @@ -1,2048 +0,0 @@ -array open '[' -array open '[' -array open '[' -array open '[' -array open '[' -array open '[' -array open '[' -array open '[' -array open '[' -array open '[' -array open '[' -array open '[' -array open '[' -array open '[' -array open '[' -array open '[' -array open '[' -array open '[' -array open '[' -array open '[' -array open '[' -array open '[' -array open '[' -array open '[' -array open '[' -array open '[' -array open '[' -array open '[' -array open '[' -array open '[' -array open '[' -array open '[' -array open '[' -array open '[' -array open '[' -array open '[' -array open '[' -array open '[' -array open '[' -array open '[' -array open '[' -array open '[' -array open '[' -array open '[' -array open '[' -array open '[' -array open '[' 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close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' 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']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' -array close ']' diff --git a/jcnf/yajl/cases/difficult_json_c_test_case.json b/jcnf/yajl/cases/difficult_json_c_test_case.json deleted file mode 100644 index 6998f55..0000000 --- a/jcnf/yajl/cases/difficult_json_c_test_case.json +++ /dev/null @@ -1 +0,0 @@ -{ "glossary": { "title": "example glossary", "GlossDiv": { "title": "S", "GlossList": [ { "ID": "SGML", "SortAs": "SGML", "GlossTerm": "Standard Generalized Markup Language", "Acronym": "SGML", "Abbrev": "ISO 8879:1986", "GlossDef": "A meta-markup language, used to create markup languages such as DocBook.", "GlossSeeAlso": ["GML", "XML", "markup"] } ] } } } diff --git a/jcnf/yajl/cases/difficult_json_c_test_case.json.gold b/jcnf/yajl/cases/difficult_json_c_test_case.json.gold deleted file mode 100644 index eaaf41a..0000000 --- a/jcnf/yajl/cases/difficult_json_c_test_case.json.gold +++ /dev/null @@ -1,35 +0,0 @@ -map open '{' -key: 'glossary' -map open '{' -key: 'title' -string: 'example glossary' -key: 'GlossDiv' -map open '{' -key: 'title' -string: 'S' -key: 'GlossList' -array open '[' -map open '{' -key: 'ID' -string: 'SGML' -key: 'SortAs' -string: 'SGML' -key: 'GlossTerm' -string: 'Standard Generalized Markup Language' -key: 'Acronym' -string: 'SGML' -key: 'Abbrev' -string: 'ISO 8879:1986' -key: 'GlossDef' -string: 'A meta-markup language, used to create markup languages such as DocBook.' -key: 'GlossSeeAlso' -array open '[' -string: 'GML' -string: 'XML' -string: 'markup' -array close ']' -map close '}' -array close ']' -map close '}' -map close '}' -map close '}' diff --git a/jcnf/yajl/cases/difficult_json_c_test_case_with_comments.json b/jcnf/yajl/cases/difficult_json_c_test_case_with_comments.json deleted file mode 100644 index 2463c71..0000000 --- a/jcnf/yajl/cases/difficult_json_c_test_case_with_comments.json +++ /dev/null @@ -1 +0,0 @@ -{ "glossary": { /* you */ "title": /**/ "example glossary", /*should*/"GlossDiv": { "title": /*never*/"S", /*ever*/"GlossList": [ { "ID": "SGML", "SortAs": "SGML", "GlossTerm": "Standard Generalized Markup Language", "Acronym": "SGML", "Abbrev": "ISO 8879:1986", "GlossDef": "A meta-markup language, used to create markup languages such as DocBook.", /*see*/"GlossSeeAlso"/*this*/:/*coming*/[/*out*/"GML"/*of*/,/*the*/"XML"/*parser!*/, "markup"] /*hey*/}/*ho*/]/*hey*/}/*ho*/} } // and the parser won't even get this far, so chill. /* hah! diff --git a/jcnf/yajl/cases/difficult_json_c_test_case_with_comments.json.gold b/jcnf/yajl/cases/difficult_json_c_test_case_with_comments.json.gold deleted file mode 100644 index eaaf41a..0000000 --- a/jcnf/yajl/cases/difficult_json_c_test_case_with_comments.json.gold +++ /dev/null @@ -1,35 +0,0 @@ -map open '{' -key: 'glossary' -map open '{' -key: 'title' -string: 'example glossary' -key: 'GlossDiv' -map open '{' -key: 'title' -string: 'S' -key: 'GlossList' -array open '[' -map open '{' -key: 'ID' -string: 'SGML' -key: 'SortAs' -string: 'SGML' -key: 'GlossTerm' -string: 'Standard Generalized Markup Language' -key: 'Acronym' -string: 'SGML' -key: 'Abbrev' -string: 'ISO 8879:1986' -key: 'GlossDef' -string: 'A meta-markup language, used to create markup languages such as DocBook.' -key: 'GlossSeeAlso' -array open '[' -string: 'GML' -string: 'XML' -string: 'markup' -array close ']' -map close '}' -array close ']' -map close '}' -map close '}' -map close '}' diff --git a/jcnf/yajl/cases/doubles.json b/jcnf/yajl/cases/doubles.json deleted file mode 100644 index 626f21c..0000000 --- a/jcnf/yajl/cases/doubles.json +++ /dev/null @@ -1 +0,0 @@ -[ 0.1e2, 1e1, 3.141569, 10000000000000e-10] diff --git a/jcnf/yajl/cases/doubles.json.gold b/jcnf/yajl/cases/doubles.json.gold deleted file mode 100644 index ab5f212..0000000 --- a/jcnf/yajl/cases/doubles.json.gold +++ /dev/null @@ -1,6 +0,0 @@ -array open '[' -double: 10.000000 -double: 10.000000 -double: 3.141569 -double: 1000.000000 -array close ']' diff --git a/jcnf/yajl/cases/empty_array.json b/jcnf/yajl/cases/empty_array.json deleted file mode 100644 index 0637a08..0000000 --- a/jcnf/yajl/cases/empty_array.json +++ /dev/null @@ -1 +0,0 @@ -[] \ No newline at end of file diff --git a/jcnf/yajl/cases/empty_array.json.gold b/jcnf/yajl/cases/empty_array.json.gold deleted file mode 100644 index 45924af..0000000 --- a/jcnf/yajl/cases/empty_array.json.gold +++ /dev/null @@ -1,2 +0,0 @@ -array open '[' -array close ']' diff --git a/jcnf/yajl/cases/escaped_bulgarian.json b/jcnf/yajl/cases/escaped_bulgarian.json deleted file mode 100644 index 9ce1d1c..0000000 --- a/jcnf/yajl/cases/escaped_bulgarian.json +++ /dev/null @@ -1,4 +0,0 @@ -["\u0414\u0430", - "\u041c\u0443", - "\u0415\u0431\u0430", - "\u041c\u0430\u0439\u043a\u0430\u0442\u0430"] diff --git a/jcnf/yajl/cases/escaped_bulgarian.json.gold b/jcnf/yajl/cases/escaped_bulgarian.json.gold deleted file mode 100644 index 9f2aa00..0000000 --- a/jcnf/yajl/cases/escaped_bulgarian.json.gold +++ /dev/null @@ -1,6 +0,0 @@ -array open '[' -string: 'Да' -string: 'Му' -string: 'Еба' -string: 'Майката' -array close ']' diff --git a/jcnf/yajl/cases/escaped_foobar.json b/jcnf/yajl/cases/escaped_foobar.json deleted file mode 100644 index 2c0e25f..0000000 --- a/jcnf/yajl/cases/escaped_foobar.json +++ /dev/null @@ -1 +0,0 @@ -"\u0066\u006f\u006f\u0062\u0061\u0072" diff --git a/jcnf/yajl/cases/escaped_foobar.json.gold b/jcnf/yajl/cases/escaped_foobar.json.gold deleted file mode 100644 index 774e867..0000000 --- a/jcnf/yajl/cases/escaped_foobar.json.gold +++ /dev/null @@ -1 +0,0 @@ -string: 'foobar' diff --git a/jcnf/yajl/cases/integers.json b/jcnf/yajl/cases/integers.json deleted file mode 100644 index ca1393a..0000000 --- a/jcnf/yajl/cases/integers.json +++ /dev/null @@ -1,3 +0,0 @@ -[ 1,2,3,4,5,6,7, - 123456789 , -123456789, - 9223372036854775807, -9223372036854775807 ] diff --git a/jcnf/yajl/cases/integers.json.gold b/jcnf/yajl/cases/integers.json.gold deleted file mode 100644 index f44b283..0000000 --- a/jcnf/yajl/cases/integers.json.gold +++ /dev/null @@ -1,13 +0,0 @@ -array open '[' -integer: 1 -integer: 2 -integer: 3 -integer: 4 -integer: 5 -integer: 6 -integer: 7 -integer: 123456789 -integer: -123456789 -integer: 9223372036854775807 -integer: -9223372036854775807 -array close ']' diff --git a/jcnf/yajl/cases/invalid_utf8.json b/jcnf/yajl/cases/invalid_utf8.json deleted file mode 100644 index 12f1718..0000000 --- a/jcnf/yajl/cases/invalid_utf8.json +++ /dev/null @@ -1 +0,0 @@ -["Да ÐœÑ Ð•Ð±Ð° Майката"] diff --git a/jcnf/yajl/cases/invalid_utf8.json.gold b/jcnf/yajl/cases/invalid_utf8.json.gold deleted file mode 100644 index 0cabb13..0000000 --- a/jcnf/yajl/cases/invalid_utf8.json.gold +++ /dev/null @@ -1,2 +0,0 @@ -array open '[' -lexical error: invalid bytes in UTF8 string. diff --git a/jcnf/yajl/cases/isolated_surrogate_marker.json b/jcnf/yajl/cases/isolated_surrogate_marker.json deleted file mode 100644 index 36959f4..0000000 --- a/jcnf/yajl/cases/isolated_surrogate_marker.json +++ /dev/null @@ -1 +0,0 @@ -"\ud800" diff --git a/jcnf/yajl/cases/isolated_surrogate_marker.json.gold b/jcnf/yajl/cases/isolated_surrogate_marker.json.gold deleted file mode 100644 index 1ad9e8b..0000000 --- a/jcnf/yajl/cases/isolated_surrogate_marker.json.gold +++ /dev/null @@ -1 +0,0 @@ -string: '?' diff --git a/jcnf/yajl/cases/leading_zero_in_number.json b/jcnf/yajl/cases/leading_zero_in_number.json deleted file mode 100644 index 959f5ba..0000000 --- a/jcnf/yajl/cases/leading_zero_in_number.json +++ /dev/null @@ -1 +0,0 @@ -{ "bad thing": 01 } diff --git a/jcnf/yajl/cases/leading_zero_in_number.json.gold b/jcnf/yajl/cases/leading_zero_in_number.json.gold deleted file mode 100644 index 828aec8..0000000 --- a/jcnf/yajl/cases/leading_zero_in_number.json.gold +++ /dev/null @@ -1,4 +0,0 @@ -map open '{' -key: 'bad thing' -integer: 0 -parse error: after key and value, inside map, I expect ',' or '}' diff --git a/jcnf/yajl/cases/lonely_minus_sign.json b/jcnf/yajl/cases/lonely_minus_sign.json deleted file mode 100644 index 85f69bd..0000000 --- a/jcnf/yajl/cases/lonely_minus_sign.json +++ /dev/null @@ -1,7 +0,0 @@ -[ - "foo", true, - true, "blue", - "baby where are you?", "oh boo hoo!", - - -] - diff --git a/jcnf/yajl/cases/lonely_minus_sign.json.gold b/jcnf/yajl/cases/lonely_minus_sign.json.gold deleted file mode 100644 index 4b23c61..0000000 --- a/jcnf/yajl/cases/lonely_minus_sign.json.gold +++ /dev/null @@ -1,8 +0,0 @@ -array open '[' -string: 'foo' -bool: true -bool: true -string: 'blue' -string: 'baby where are you?' -string: 'oh boo hoo!' -lexical error: malformed number, a digit is required after the minus sign. diff --git a/jcnf/yajl/cases/missing_integer_after_decimal_point.json b/jcnf/yajl/cases/missing_integer_after_decimal_point.json deleted file mode 100644 index 2369f4b..0000000 --- a/jcnf/yajl/cases/missing_integer_after_decimal_point.json +++ /dev/null @@ -1 +0,0 @@ -10.e2 diff --git a/jcnf/yajl/cases/missing_integer_after_decimal_point.json.gold b/jcnf/yajl/cases/missing_integer_after_decimal_point.json.gold deleted file mode 100644 index 1d85c91..0000000 --- a/jcnf/yajl/cases/missing_integer_after_decimal_point.json.gold +++ /dev/null @@ -1 +0,0 @@ -lexical error: malformed number, a digit is required after the decimal point. diff --git a/jcnf/yajl/cases/missing_integer_after_exponent.json b/jcnf/yajl/cases/missing_integer_after_exponent.json deleted file mode 100644 index a62b45d..0000000 --- a/jcnf/yajl/cases/missing_integer_after_exponent.json +++ /dev/null @@ -1 +0,0 @@ -10e diff --git a/jcnf/yajl/cases/missing_integer_after_exponent.json.gold b/jcnf/yajl/cases/missing_integer_after_exponent.json.gold deleted file mode 100644 index b9f184f..0000000 --- a/jcnf/yajl/cases/missing_integer_after_exponent.json.gold +++ /dev/null @@ -1 +0,0 @@ -lexical error: malformed number, a digit is required after the exponent. diff --git a/jcnf/yajl/cases/non_utf8_char_in_string.json b/jcnf/yajl/cases/non_utf8_char_in_string.json deleted file mode 100644 index 253a664..0000000 --- a/jcnf/yajl/cases/non_utf8_char_in_string.json +++ /dev/null @@ -1 +0,0 @@ -{"CoreletAPIVersion":2,"CoreletType":"standalone","documentation":"A corelet that provides the capability to upload a folder’s contents into a user’s locker.","functions":[{"documentation":"Displays a dialog box that allows user to select a folder on the local system.","name":"ShowBrowseDialog","parameters":[{"documentation":"The callback function for results.","name":"callback","required":true,"type":"callback"}]},{"documentation":"Uploads all mp3 files in the folder provided.","name":"UploadFolder","parameters":[{"documentation":"The path to upload mp3 files from.","name":"path","required":true,"type":"string"},{"documentation":"The callback function for progress.","name":"callback","required":true,"type":"callback"}]},{"documentation":"Returns the server name to the current locker service.","name":"GetLockerService","parameters":[]},{"documentation":"Changes the name of the locker service.","name":"SetLockerService","parameters":[{"documentation":"The value of the locker service to set active.","name":"LockerService","required":true,"type":"string"}]},{"documentation":"Downloads locker files to the suggested folder.","name":"DownloadFile","parameters":[{"documentation":"The origin path of the locker file.","name":"path","required":true,"type":"string"},{"documentation":"The Window destination path of the locker file.","name":"destination","required":true,"type":"integer"},{"documentation":"The callback function for progress.","name":"callback","required":true,"type":"callback"}]}],"name":"LockerUploader","version":{"major":0,"micro":1,"minor":0},"versionString":"0.0.1"} \ No newline at end of file diff --git a/jcnf/yajl/cases/non_utf8_char_in_string.json.gold b/jcnf/yajl/cases/non_utf8_char_in_string.json.gold deleted file mode 100644 index b3780ae..0000000 --- a/jcnf/yajl/cases/non_utf8_char_in_string.json.gold +++ /dev/null @@ -1,7 +0,0 @@ -map open '{' -key: 'CoreletAPIVersion' -integer: 2 -key: 'CoreletType' -string: 'standalone' -key: 'documentation' -lexical error: invalid bytes in UTF8 string. diff --git a/jcnf/yajl/cases/nulls_and_bools.json b/jcnf/yajl/cases/nulls_and_bools.json deleted file mode 100644 index 65eb01f..0000000 --- a/jcnf/yajl/cases/nulls_and_bools.json +++ /dev/null @@ -1,5 +0,0 @@ -{ - "boolean, true": true, - "boolean, false": false, - "null": null -} diff --git a/jcnf/yajl/cases/nulls_and_bools.json.gold b/jcnf/yajl/cases/nulls_and_bools.json.gold deleted file mode 100644 index 8dc173c..0000000 --- a/jcnf/yajl/cases/nulls_and_bools.json.gold +++ /dev/null @@ -1,8 +0,0 @@ -map open '{' -key: 'boolean, true' -bool: true -key: 'boolean, false' -bool: false -key: 'null' -null -map close '}' diff --git a/jcnf/yajl/cases/simple.json b/jcnf/yajl/cases/simple.json deleted file mode 100644 index 9ed80c9..0000000 --- a/jcnf/yajl/cases/simple.json +++ /dev/null @@ -1,5 +0,0 @@ -{ - "this": "is", - "really": "simple", - "json": "right?" -} diff --git a/jcnf/yajl/cases/simple.json.gold b/jcnf/yajl/cases/simple.json.gold deleted file mode 100644 index 59b7d6a..0000000 --- a/jcnf/yajl/cases/simple.json.gold +++ /dev/null @@ -1,8 +0,0 @@ -map open '{' -key: 'this' -string: 'is' -key: 'really' -string: 'simple' -key: 'json' -string: 'right?' -map close '}' diff --git a/jcnf/yajl/cases/simple_with_comments.json b/jcnf/yajl/cases/simple_with_comments.json deleted file mode 100644 index 3b79bba..0000000 --- a/jcnf/yajl/cases/simple_with_comments.json +++ /dev/null @@ -1,11 +0,0 @@ -{ - "this": "is", // ignore this - "really": "simple", - /* ignore -this -too * / -** // -(/ -******/ - "json": "right?" -} diff --git a/jcnf/yajl/cases/simple_with_comments.json.gold b/jcnf/yajl/cases/simple_with_comments.json.gold deleted file mode 100644 index 59b7d6a..0000000 --- a/jcnf/yajl/cases/simple_with_comments.json.gold +++ /dev/null @@ -1,8 +0,0 @@ -map open '{' -key: 'this' -string: 'is' -key: 'really' -string: 'simple' -key: 'json' -string: 'right?' -map close '}' diff --git a/jcnf/yajl/cases/string_invalid_escape.json b/jcnf/yajl/cases/string_invalid_escape.json deleted file mode 100644 index c554182..0000000 --- a/jcnf/yajl/cases/string_invalid_escape.json +++ /dev/null @@ -1 +0,0 @@ -["\n foo \/ bar \r\f\\\uffff\t\b\"\\ and you can't escape thi\s"] diff --git a/jcnf/yajl/cases/string_invalid_escape.json.gold b/jcnf/yajl/cases/string_invalid_escape.json.gold deleted file mode 100644 index bdc473e..0000000 --- a/jcnf/yajl/cases/string_invalid_escape.json.gold +++ /dev/null @@ -1,2 +0,0 @@ -array open '[' -lexical error: inside a string, '\' occurs before a character which it may not. diff --git a/jcnf/yajl/cases/string_invalid_hex_char.json b/jcnf/yajl/cases/string_invalid_hex_char.json deleted file mode 100644 index bde7ee9..0000000 --- a/jcnf/yajl/cases/string_invalid_hex_char.json +++ /dev/null @@ -1 +0,0 @@ -"foo foo, blah blah \u0123 \u4567 \u89ab \uc/ef \uABCD \uEFFE bar baz bing" diff --git a/jcnf/yajl/cases/string_invalid_hex_char.json.gold b/jcnf/yajl/cases/string_invalid_hex_char.json.gold deleted file mode 100644 index d8b535e..0000000 --- a/jcnf/yajl/cases/string_invalid_hex_char.json.gold +++ /dev/null @@ -1 +0,0 @@ -lexical error: invalid (non-hex) character occurs after '\u' inside string. diff --git a/jcnf/yajl/cases/string_with_escapes.json b/jcnf/yajl/cases/string_with_escapes.json deleted file mode 100644 index 59cc940..0000000 --- a/jcnf/yajl/cases/string_with_escapes.json +++ /dev/null @@ -1,3 +0,0 @@ -["\n foo \/ bar \r\f\\\uffff\t\b\"\\", - "\"and this string has an escape at the beginning", - "and this string has no escapes" ] diff --git a/jcnf/yajl/cases/string_with_escapes.json.gold b/jcnf/yajl/cases/string_with_escapes.json.gold deleted file mode 100644 index ac878a2..0000000 --- a/jcnf/yajl/cases/string_with_escapes.json.gold +++ /dev/null @@ -1,6 +0,0 @@ -array open '[' -string: ' - foo / bar \ï¿¿ "\' -string: '"and this string has an escape at the beginning' -string: 'and this string has no escapes' -array close ']' diff --git a/jcnf/yajl/cases/string_with_invalid_newline.json b/jcnf/yajl/cases/string_with_invalid_newline.json deleted file mode 100644 index 0e3ea0d..0000000 --- a/jcnf/yajl/cases/string_with_invalid_newline.json +++ /dev/null @@ -1,2 +0,0 @@ -"la di dah. this is a string, and I can do this, \n, but not this -" diff --git a/jcnf/yajl/cases/string_with_invalid_newline.json.gold b/jcnf/yajl/cases/string_with_invalid_newline.json.gold deleted file mode 100644 index 80c1b8a..0000000 --- a/jcnf/yajl/cases/string_with_invalid_newline.json.gold +++ /dev/null @@ -1 +0,0 @@ -lexical error: invalid character inside string. diff --git a/jcnf/yajl/cases/unescaped_bulgarian.json b/jcnf/yajl/cases/unescaped_bulgarian.json deleted file mode 100644 index f9a70a6..0000000 --- a/jcnf/yajl/cases/unescaped_bulgarian.json +++ /dev/null @@ -1 +0,0 @@ -["Да Му Еба Майката"] diff --git a/jcnf/yajl/cases/unescaped_bulgarian.json.gold b/jcnf/yajl/cases/unescaped_bulgarian.json.gold deleted file mode 100644 index ac34442..0000000 --- a/jcnf/yajl/cases/unescaped_bulgarian.json.gold +++ /dev/null @@ -1,3 +0,0 @@ -array open '[' -string: 'Да Му Еба Майката' -array close ']' diff --git a/jcnf/yajl/configure b/jcnf/yajl/configure deleted file mode 100644 index bed8c28..0000000 --- a/jcnf/yajl/configure +++ /dev/null @@ -1,94 +0,0 @@ -#!/usr/bin/env ruby -# Copyright 2007-2009, Lloyd Hilaiel. -# -# Redistribution and use in source and binary forms, with or without -# modification, are permitted provided that the following conditions are -# met: -# -# 1. Redistributions of source code must retain the above copyright -# notice, this list of conditions and the following disclaimer. -# -# 2. Redistributions in binary form must reproduce the above copyright -# notice, this list of conditions and the following disclaimer in -# the documentation and/or other materials provided with the -# distribution. -# -# 3. Neither the name of Lloyd Hilaiel nor the names of its -# contributors may be used to endorse or promote products derived -# from this software without specific prior written permission. -# -# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR -# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED -# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE -# DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, -# INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES -# (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR -# SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) -# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, -# STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING -# IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE -# POSSIBILITY OF SUCH DAMAGE. - -require 'fileutils' -require 'optparse' - -prefix = "/usr/local" -options = {} -OptionParser.new do |opts| - opts.banner = "Usage: configure [options]" - opts.on("-p", "--prefix PATH", "Set installation prefix") do |p| - prefix = p - end - opts.on_tail("-h", "--help", "Output usage summary") do - puts opts - exit - end - - opts.parse!(ARGV) -end - -puts "== removing old build files" -FileUtils.rm_rf("build") -FileUtils.rm_f("Makefile") -puts "== running CMake in build directory" -FileUtils.mkdir("build") -FileUtils.cd("build") do - if (!system("cmake ..")) - puts "The \"cmake\" program is required to configure yajl. It's" - puts "available from most ports/packaging systems and http://cmake.org" - exit 1 - end -end - -# now generate a Makefile -puts "== Generating Makefile" -File.open("Makefile", "w+") do |f| - f.puts ".PHONY: all clean distclean install package test distro" - f.puts "all: distro doc test" - f.puts - f.puts "distro:" - f.puts " @cd build && make" - f.puts - f.puts "doc:" - f.puts " @cd build && make doc" - f.puts - f.puts "test:" - f.puts " @cd build && make test" - f.puts - f.puts "clean:" - f.puts " @cd build && make clean" - f.puts - f.puts "distclean:" - f.puts " @rm -rf Makefile build" - f.puts " @rm -f yajl-*.tgz" - f.puts - f.puts "install: all" - f.puts " @cd build && make install" - f.puts - f.puts "package: all" - f.puts " @echo \"compressing to `basename build/yajl-*`.tgz\"" - f.puts " @cd build && tar czf ../`basename yajl-*`.tgz yajl-*" -end - -puts "== Configured with installation prefix: #{prefix}" - diff --git a/jcnf/yajl/json_reformat.c b/jcnf/yajl/json_reformat.c deleted file mode 100644 index 156a61b..0000000 --- a/jcnf/yajl/json_reformat.c +++ /dev/null @@ -1,204 +0,0 @@ -/* - * Copyright 2007, Lloyd Hilaiel. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are - * met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * - * 3. Neither the name of Lloyd Hilaiel nor the names of its - * contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR - * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED - * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE - * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, - * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES - * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR - * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGE. - */ - -#include "yajl_parse.h" -#include "yajl_gen.h" - -#include -#include -#include - -int reformat_null(void * ctx) -{ - yajl_gen g = (yajl_gen) ctx; - yajl_gen_null(g); - return 1; -} - -int reformat_boolean(void * ctx, int boolVal) -{ - yajl_gen g = (yajl_gen) ctx; - yajl_gen_bool(g, boolVal); - return 1; -} - -int reformat_integer(void * ctx, long long integerVal) -{ - yajl_gen g = (yajl_gen) ctx; - yajl_gen_integer(g, integerVal); - return 1; -} - -int reformat_double(void * ctx, double doubleVal) -{ - yajl_gen g = (yajl_gen) ctx; - yajl_gen_double(g, doubleVal); - return 1; -} - -int reformat_string(void * ctx, const unsigned char * stringVal, - unsigned int stringLen) -{ - yajl_gen g = (yajl_gen) ctx; - yajl_gen_string(g, stringVal, stringLen); - return 1; -} - -int reformat_map_key(void * ctx, const unsigned char * stringVal, - unsigned int stringLen) -{ - yajl_gen g = (yajl_gen) ctx; - yajl_gen_string(g, stringVal, stringLen); - return 1; -} - -int reformat_start_map(void * ctx) -{ - yajl_gen g = (yajl_gen) ctx; - yajl_gen_map_open(g); - return 1; -} - - -int reformat_end_map(void * ctx) -{ - yajl_gen g = (yajl_gen) ctx; - yajl_gen_map_close(g); - return 1; -} - -int reformat_start_array(void * ctx) -{ - yajl_gen g = (yajl_gen) ctx; - yajl_gen_array_open(g); - return 1; -} - -int reformat_end_array(void * ctx) -{ - yajl_gen g = (yajl_gen) ctx; - yajl_gen_array_close(g); - return 1; -} - -static yajl_callbacks callbacks = { - reformat_null, - reformat_boolean, - reformat_integer, - reformat_double, - reformat_string, - reformat_start_map, - reformat_map_key, - reformat_end_map, - reformat_start_array, - reformat_end_array -}; - -static void -usage(const char * progname) -{ - fprintf(stderr, "usage: %s \n" - " -m minimize json rather than beautify (default)\n" - " -u allow invalid UTF8 inside strings during parsing\n", - progname); - exit(1); - -} - -int -main(int argc, char ** argv) -{ - yajl_handle hand; - static unsigned char fileData[65536]; - /* generator config */ - yajl_gen_config conf = { 1, " " }; - yajl_gen g; - yajl_status stat; - size_t rd; - /* allow comments */ - yajl_parser_config cfg = { 1, 1 }; - - /* check arguments. We expect exactly one! */ - if (argc == 2) { - if (!strcmp("-m", argv[1])) { - conf.beautify = 0; - - } else if (!strcmp("-u", argv[1])) { - cfg.checkUTF8 = 0; - } else { - usage(argv[0]); - } - } else if (argc != 1) { - usage(argv[0]); - } - - g = yajl_gen_alloc(&conf); - - /* ok. open file. let's read and parse */ - hand = yajl_alloc(&callbacks, &cfg, (void *) g); - - for (;;) { - rd = fread((void *) fileData, 1, sizeof(fileData) - 1, stdin); - - if (rd == 0) { - if (feof(stdin)) { - break; - } else { - fprintf(stderr, "error on file read.\n"); - break; - } - } else { - fileData[rd] = 0; - - /* read file data, pass to parser */ - stat = yajl_parse(hand, fileData, rd); - if (stat != yajl_status_ok && - stat != yajl_status_insufficient_data) - { - unsigned char * str = yajl_get_error(hand, 1, fileData, rd); - fprintf(stderr, (const char *) str); - yajl_free_error(str); - } else { - const unsigned char * buf; - unsigned int len; - yajl_gen_get_buf(g, &buf, &len); - fwrite(buf, 1, len, stdout); - yajl_gen_clear(g); - } - } - } - - yajl_gen_free(g); - yajl_free(hand); - - return 0; -} diff --git a/jcnf/yajl/json_verify.c b/jcnf/yajl/json_verify.c deleted file mode 100644 index 42b57a9..0000000 --- a/jcnf/yajl/json_verify.c +++ /dev/null @@ -1,129 +0,0 @@ -/* - * Copyright 2007-2009, Lloyd Hilaiel. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are - * met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * - * 3. Neither the name of Lloyd Hilaiel nor the names of its - * contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR - * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED - * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE - * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, - * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES - * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR - * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGE. - */ - -#include "yajl_parse.h" - -#include -#include -#include - -static void -usage(const char * progname) -{ - fprintf(stderr, "%s: validate json from stdin\n" - "usage: json_verify [options]\n" - " -q quiet mode\n" - " -c allow comments\n" - " -u allow invalid utf8 inside strings\n", - progname); - exit(1); -} - -int -main(int argc, char ** argv) -{ - yajl_status stat; - size_t rd; - yajl_handle hand; - static unsigned char fileData[65536]; - int quiet = 0; - int retval = 0, done = 0; - yajl_parser_config cfg = { 0, 1 }; - - /* check arguments.*/ - if (argc > 1 && argc < 4) { - int i; - - for (i=1; i < argc;i++) { - if (!strcmp("-q", argv[i])) { - quiet = 1; - } else if (!strcmp("-c", argv[i])) { - cfg.allowComments = 1; - } else if (!strcmp("-u", argv[i])) { - cfg.checkUTF8 = 0; - } else { - fprintf(stderr, "unrecognized option: '%s'\n\n", argv[i]); - usage(argv[0]); - } - } - } else if (argc != 1) { - usage(argv[0]); - } - - /* allocate a parser */ - hand = yajl_alloc(NULL, &cfg, NULL, NULL); - - while (!done) { - rd = fread((void *) fileData, 1, sizeof(fileData) - 1, stdin); - - retval = 0; - - if (rd == 0) { - if (!feof(stdin)) { - if (!quiet) { - fprintf(stderr, "error encountered on file read\n"); - } - retval = 1; - break; - } - done = 1; - } - fileData[rd] = 0; - - if (done) - /* parse any remaining buffered data */ - stat = yajl_parse_complete(hand); - else - /* read file data, pass to parser */ - stat = yajl_parse(hand, fileData, rd); - - if (stat != yajl_status_ok && - stat != yajl_status_insufficient_data) - { - if (!quiet) { - unsigned char * str = yajl_get_error(hand, 1, fileData, rd); - fprintf(stderr, "%s", (const char *) str); - yajl_free_error(hand, str); - } - retval = 1; - break; - } - } - - yajl_free(hand); - - if (!quiet) { - printf("JSON is %s\n", retval ? "invalid" : "valid"); - } - - return retval; -} diff --git a/jcnf/yajl/rfc4627.txt b/jcnf/yajl/rfc4627.txt deleted file mode 100644 index c3325a9..0000000 --- a/jcnf/yajl/rfc4627.txt +++ /dev/null @@ -1,3 +0,0 @@ - -See - diff --git a/jcnf/yajl/run_tests.sh b/jcnf/yajl/run_tests.sh deleted file mode 100644 index 174932f..0000000 --- a/jcnf/yajl/run_tests.sh +++ /dev/null @@ -1,61 +0,0 @@ -#!/usr/bin/env bash - -DIFF_FLAGS="-u" -if [[ `uname` == *W32* ]] ; then - DIFF_FLAGS="-wu" -fi - -# find test binary on both platforms. allow the caller to force a -# particular test binary (useful for non-cmake build systems). -if [ -z "$testBin" ]; then - testBin="../build/test/Debug/yajl_test.exe" - if [[ ! -x $testBin ]] ; then - testBin="../build/test/yajl_test" - if [[ ! -x $testBin ]] ; then - echo "cannot execute test binary: '$testBin'" - exit 1; - fi - fi -fi - -echo "using test binary: $testBin" - -let testsSucceeded=0 -let testsTotal=0 - -for file in cases/*.json ; do - allowComments="-c" - - # if the filename starts with dc_, we disallow comments for this test - if [[ $(basename $file) == dc_* ]] ; then - allowComments="" - fi - echo -n " test case: '$file': " - let iter=1 - success="success" - - # parse with a read buffer size ranging from 1-31 to stress stream parsing - while (( $iter < 32 )) && [ $success == "success" ] ; do - $testBin $allowComments -b $iter < $file > ${file}.test 2>&1 - diff ${DIFF_FLAGS} ${file}.gold ${file}.test - if [[ $? == 0 ]] ; then - if (( $iter == 31 )) ; then let testsSucceeded+=1 ; fi - else - success="FAILURE" - let iter=32 - fi - let iter+=1 - rm ${file}.test - done - - echo $success - let testsTotal+=1 -done - -echo $testsSucceeded/$testsTotal tests successful - -if [[ $testsSucceeded != $testsTotal ]] ; then - exit 1 -fi - -exit 0 diff --git a/jcnf/yajl/yajl.c b/jcnf/yajl/yajl.c deleted file mode 100644 index b0dc991..0000000 --- a/jcnf/yajl/yajl.c +++ /dev/null @@ -1,152 +0,0 @@ -/* - * Copyright 2007-2009, Lloyd Hilaiel. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are - * met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * - * 3. Neither the name of Lloyd Hilaiel nor the names of its - * contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR - * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED - * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE - * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, - * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES - * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR - * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGE. - */ - -#include "yajl_parse.h" -#include "yajl_lex.h" -#include "yajl_parser.h" -#include "yajl_alloc.h" - -#include -#include -#include - -const char * -yajl_status_to_string(yajl_status stat) -{ - const char * statStr = "unknown"; - switch (stat) { - case yajl_status_ok: - statStr = "ok, no error"; - break; - case yajl_status_client_canceled: - statStr = "client canceled parse"; - break; - case yajl_status_insufficient_data: - statStr = "eof was met before the parse could complete"; - break; - case yajl_status_error: - statStr = "parse error"; - break; - } - return statStr; -} - -yajl_handle -yajl_alloc(const yajl_callbacks * callbacks, - const yajl_parser_config * config, - const yajl_alloc_funcs * afs, - void * ctx) -{ - unsigned int allowComments = 0; - unsigned int validateUTF8 = 0; - yajl_handle hand = NULL; - yajl_alloc_funcs afsBuffer; - - /* first order of business is to set up memory allocation routines */ - if (afs != NULL) { - if (afs->malloc == NULL || afs->realloc == NULL || afs->free == NULL) - { - return NULL; - } - } else { - yajl_set_default_alloc_funcs(&afsBuffer); - afs = &afsBuffer; - } - - hand = (yajl_handle) YA_MALLOC(afs, sizeof(struct yajl_handle_t)); - - /* copy in pointers to allocation routines */ - memcpy((void *) &(hand->alloc), (void *) afs, sizeof(yajl_alloc_funcs)); - - if (config != NULL) { - allowComments = config->allowComments; - validateUTF8 = config->checkUTF8; - } - - hand->callbacks = callbacks; - hand->ctx = ctx; - hand->lexer = yajl_lex_alloc(&(hand->alloc), allowComments, validateUTF8); - hand->errorOffset = 0; - hand->decodeBuf = yajl_buf_alloc(&(hand->alloc)); - yajl_bs_init(hand->stateStack, &(hand->alloc)); - - yajl_bs_push(hand->stateStack, yajl_state_start); - - return hand; -} - -void -yajl_free(yajl_handle handle) -{ - yajl_bs_free(handle->stateStack); - yajl_buf_free(handle->decodeBuf); - yajl_lex_free(handle->lexer); - YA_FREE(&(handle->alloc), handle); -} - -yajl_status -yajl_parse(yajl_handle hand, const unsigned char * jsonText, - unsigned int jsonTextLen) -{ - unsigned int offset = 0; - yajl_status status; - status = yajl_do_parse(hand, &offset, jsonText, jsonTextLen); - return status; -} - -yajl_status -yajl_parse_complete(yajl_handle hand) -{ - /* The particular case we want to handle is a trailing number. - * Further input consisting of digits could cause our interpretation - * of the number to change (buffered "1" but "2" comes in). - * A very simple approach to this is to inject whitespace to terminate - * any number in the lex buffer. - */ - return yajl_parse(hand, (const unsigned char *)" ", 1); -} - -unsigned char * -yajl_get_error(yajl_handle hand, int verbose, - const unsigned char * jsonText, unsigned int jsonTextLen) -{ - return yajl_render_error_string(hand, jsonText, jsonTextLen, verbose); -} - -void -yajl_free_error(yajl_handle hand, unsigned char * str) -{ - /* use memory allocation functions if set */ - YA_FREE(&(hand->alloc), str); -} - -/* XXX: add utility routines to parse from file */ diff --git a/jcnf/yajl/yajl_alloc.c b/jcnf/yajl/yajl_alloc.c deleted file mode 100644 index 0b4bf37..0000000 --- a/jcnf/yajl/yajl_alloc.c +++ /dev/null @@ -1,65 +0,0 @@ -/* - * Copyright 2007-2009, Lloyd Hilaiel. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are - * met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * - * 3. Neither the name of Lloyd Hilaiel nor the names of its - * contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR - * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED - * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE - * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, - * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES - * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR - * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGE. - */ - -/** - * \file yajl_alloc.h - * default memory allocation routines for yajl which use malloc/realloc and - * free - */ - -#include "yajl_alloc.h" -#include - -static void * yajl_internal_malloc(void *ctx, unsigned int sz) -{ - return malloc(sz); -} - -static void * yajl_internal_realloc(void *ctx, void * previous, - unsigned int sz) -{ - return realloc(previous, sz); -} - -static void yajl_internal_free(void *ctx, void * ptr) -{ - free(ptr); -} - -void yajl_set_default_alloc_funcs(yajl_alloc_funcs * yaf) -{ - yaf->malloc = yajl_internal_malloc; - yaf->free = yajl_internal_free; - yaf->realloc = yajl_internal_realloc; - yaf->ctx = NULL; -} - diff --git a/jcnf/yajl/yajl_alloc.h b/jcnf/yajl/yajl_alloc.h deleted file mode 100644 index 988a6c5..0000000 --- a/jcnf/yajl/yajl_alloc.h +++ /dev/null @@ -1,50 +0,0 @@ -/* - * Copyright 2007-2009, Lloyd Hilaiel. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are - * met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * - * 3. Neither the name of Lloyd Hilaiel nor the names of its - * contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR - * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED - * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE - * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, - * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES - * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR - * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGE. - */ - -/** - * \file yajl_alloc.h - * default memory allocation routines for yajl which use malloc/realloc and - * free - */ - -#ifndef __YAJL_ALLOC_H__ -#define __YAJL_ALLOC_H__ - -#include "yajl_common.h" - -#define YA_MALLOC(afs, sz) (afs)->malloc((afs)->ctx, (sz)) -#define YA_FREE(afs, ptr) (afs)->free((afs)->ctx, (ptr)) -#define YA_REALLOC(afs, ptr, sz) (afs)->realloc((afs)->ctx, (ptr), (sz)) - -void yajl_set_default_alloc_funcs(yajl_alloc_funcs * yaf); - -#endif diff --git a/jcnf/yajl/yajl_buf.c b/jcnf/yajl/yajl_buf.c deleted file mode 100644 index 97f1ced..0000000 --- a/jcnf/yajl/yajl_buf.c +++ /dev/null @@ -1,119 +0,0 @@ -/* - * Copyright 2007-2009, Lloyd Hilaiel. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are - * met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * - * 3. Neither the name of Lloyd Hilaiel nor the names of its - * contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR - * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED - * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE - * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, - * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES - * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR - * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGE. - */ - -#include "yajl_buf.h" - -#include -#include -#include - -#define YAJL_BUF_INIT_SIZE 2048 - -struct yajl_buf_t { - unsigned int len; - unsigned int used; - unsigned char * data; - yajl_alloc_funcs * alloc; -}; - -static -void yajl_buf_ensure_available(yajl_buf buf, unsigned int want) -{ - unsigned int need; - - assert(buf != NULL); - - /* first call */ - if (buf->data == NULL) { - buf->len = YAJL_BUF_INIT_SIZE; - buf->data = (unsigned char *) YA_MALLOC(buf->alloc, buf->len); - buf->data[0] = 0; - } - - need = buf->len; - - while (want >= (need - buf->used)) need <<= 1; - - if (need != buf->len) { - buf->data = (unsigned char *) YA_REALLOC(buf->alloc, buf->data, need); - buf->len = need; - } -} - -yajl_buf yajl_buf_alloc(yajl_alloc_funcs * alloc) -{ - yajl_buf b = YA_MALLOC(alloc, sizeof(struct yajl_buf_t)); - memset((void *) b, 0, sizeof(struct yajl_buf_t)); - b->alloc = alloc; - return b; -} - -void yajl_buf_free(yajl_buf buf) -{ - assert(buf != NULL); - if (buf->data) YA_FREE(buf->alloc, buf->data); - YA_FREE(buf->alloc, buf); -} - -void yajl_buf_append(yajl_buf buf, const void * data, unsigned int len) -{ - yajl_buf_ensure_available(buf, len); - if (len > 0) { - assert(data != NULL); - memcpy(buf->data + buf->used, data, len); - buf->used += len; - buf->data[buf->used] = 0; - } -} - -void yajl_buf_clear(yajl_buf buf) -{ - buf->used = 0; - if (buf->data) buf->data[buf->used] = 0; -} - -const unsigned char * yajl_buf_data(yajl_buf buf) -{ - return buf->data; -} - -unsigned int yajl_buf_len(yajl_buf buf) -{ - return buf->used; -} - -void -yajl_buf_truncate(yajl_buf buf, unsigned int len) -{ - assert(len <= buf->used); - buf->used = len; -} diff --git a/jcnf/yajl/yajl_buf.h b/jcnf/yajl/yajl_buf.h deleted file mode 100644 index e5b2c82..0000000 --- a/jcnf/yajl/yajl_buf.h +++ /dev/null @@ -1,73 +0,0 @@ -/* - * Copyright 2007-2009, Lloyd Hilaiel. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are - * met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * - * 3. Neither the name of Lloyd Hilaiel nor the names of its - * contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR - * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED - * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE - * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, - * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES - * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR - * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGE. - */ - -#ifndef __YAJL_BUF_H__ -#define __YAJL_BUF_H__ - -#include "yajl_common.h" -#include "yajl_alloc.h" - -/* - * Implementation/performance notes. If this were moved to a header - * only implementation using #define's where possible we might be - * able to sqeeze a little performance out of the guy by killing function - * call overhead. YMMV. - */ - -/** - * yajl_buf is a buffer with exponential growth. the buffer ensures that - * you are always null padded. - */ -typedef struct yajl_buf_t * yajl_buf; - -/* allocate a new buffer */ -yajl_buf yajl_buf_alloc(yajl_alloc_funcs * alloc); - -/* free the buffer */ -void yajl_buf_free(yajl_buf buf); - -/* append a number of bytes to the buffer */ -void yajl_buf_append(yajl_buf buf, const void * data, unsigned int len); - -/* empty the buffer */ -void yajl_buf_clear(yajl_buf buf); - -/* get a pointer to the beginning of the buffer */ -const unsigned char * yajl_buf_data(yajl_buf buf); - -/* get the length of the buffer */ -unsigned int yajl_buf_len(yajl_buf buf); - -/* truncate the buffer */ -void yajl_buf_truncate(yajl_buf buf, unsigned int len); - -#endif diff --git a/jcnf/yajl/yajl_bytestack.h b/jcnf/yajl/yajl_bytestack.h deleted file mode 100644 index 9ce192f..0000000 --- a/jcnf/yajl/yajl_bytestack.h +++ /dev/null @@ -1,85 +0,0 @@ -/* - * Copyright 2009, Lloyd Hilaiel. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are - * met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * - * 3. Neither the name of Lloyd Hilaiel nor the names of its - * contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR - * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED - * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE - * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, - * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES - * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR - * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGE. - */ - -/* - * A header only implementation of a simple stack of bytes, used in YAJL - * to maintain parse state. - */ - -#ifndef __YAJL_BYTESTACK_H__ -#define __YAJL_BYTESTACK_H__ - -#include "yajl_common.h" - -#define YAJL_BS_INC 128 - -typedef struct yajl_bytestack_t -{ - unsigned char * stack; - unsigned int size; - unsigned int used; - yajl_alloc_funcs * yaf; -} yajl_bytestack; - -/* initialize a bytestack */ -#define yajl_bs_init(obs, _yaf) { \ - (obs).stack = NULL; \ - (obs).size = 0; \ - (obs).used = 0; \ - (obs).yaf = (_yaf); \ - } \ - - -/* initialize a bytestack */ -#define yajl_bs_free(obs) \ - if ((obs).stack) (obs).yaf->free((obs).yaf->ctx, (obs).stack); - -#define yajl_bs_current(obs) \ - (assert((obs).used > 0), (obs).stack[(obs).used - 1]) - -#define yajl_bs_push(obs, byte) { \ - if (((obs).size - (obs).used) == 0) { \ - (obs).size += YAJL_BS_INC; \ - (obs).stack = (obs).yaf->realloc((obs).yaf->ctx,\ - (void *) (obs).stack, (obs).size);\ - } \ - (obs).stack[((obs).used)++] = (byte); \ -} - -/* removes the top item of the stack, returns nothing */ -#define yajl_bs_pop(obs) { ((obs).used)--; } - -#define yajl_bs_set(obs, byte) \ - (obs).stack[((obs).used) - 1] = (byte); - - -#endif diff --git a/jcnf/yajl/yajl_common.h b/jcnf/yajl/yajl_common.h deleted file mode 100644 index 9ad5eb4..0000000 --- a/jcnf/yajl/yajl_common.h +++ /dev/null @@ -1,85 +0,0 @@ -/* - * Copyright 2007-2009, Lloyd Hilaiel. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are - * met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * - * 3. Neither the name of Lloyd Hilaiel nor the names of its - * contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR - * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED - * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE - * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, - * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES - * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR - * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGE. - */ - -#ifndef __YAJL_COMMON_H__ -#define __YAJL_COMMON_H__ - -#ifdef __cplusplus -extern "C" { -#endif - -#define YAJL_MAX_DEPTH 128 - -/* msft dll export gunk. To build a DLL on windows, you - * must define WIN32, YAJL_SHARED, and YAJL_BUILD. To use a shared - * DLL, you must define YAJL_SHARED and WIN32 */ -#if defined(WIN32) && defined(YAJL_SHARED) -# ifdef YAJL_BUILD -# define YAJL_API __declspec(dllexport) -# else -# define YAJL_API __declspec(dllimport) -# endif -#else -# define YAJL_API -#endif - -/** pointer to a malloc function, supporting client overriding memory - * allocation routines */ -typedef void * (*yajl_malloc_func)(void *ctx, unsigned int sz); - -/** pointer to a free function, supporting client overriding memory - * allocation routines */ -typedef void (*yajl_free_func)(void *ctx, void * ptr); - -/** pointer to a realloc function which can resize an allocation. */ -typedef void * (*yajl_realloc_func)(void *ctx, void * ptr, unsigned int sz); - -/** A structure which can be passed to yajl_*_alloc routines to allow the - * client to specify memory allocation functions to be used. */ -typedef struct -{ - /** pointer to a function that can allocate uninitialized memory */ - yajl_malloc_func malloc; - /** pointer to a function that can resize memory allocations */ - yajl_realloc_func realloc; - /** pointer to a function that can free memory allocated using - * reallocFunction or mallocFunction */ - yajl_free_func free; - /** a context pointer that will be passed to above allocation routines */ - void * ctx; -} yajl_alloc_funcs; - -#ifdef __cplusplus -} -#endif - -#endif diff --git a/jcnf/yajl/yajl_encode.c b/jcnf/yajl/yajl_encode.c deleted file mode 100644 index 184277b..0000000 --- a/jcnf/yajl/yajl_encode.c +++ /dev/null @@ -1,179 +0,0 @@ -/* - * Copyright 2007-2009, Lloyd Hilaiel. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are - * met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * - * 3. Neither the name of Lloyd Hilaiel nor the names of its - * contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR - * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED - * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE - * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, - * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES - * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR - * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGE. - */ - -#include "yajl_encode.h" - -#include -#include -#include -#include - -static void CharToHex(unsigned char c, char * hexBuf) -{ - const char * hexchar = "0123456789ABCDEF"; - hexBuf[0] = hexchar[c >> 4]; - hexBuf[1] = hexchar[c & 0x0F]; -} - -void -yajl_string_encode(yajl_buf buf, const unsigned char * str, - unsigned int len) -{ - unsigned int beg = 0; - unsigned int end = 0; - char hexBuf[7]; - hexBuf[0] = '\\'; hexBuf[1] = 'u'; hexBuf[2] = '0'; hexBuf[3] = '0'; - hexBuf[6] = 0; - - while (end < len) { - const char * escaped = NULL; - switch (str[end]) { - case '\r': escaped = "\\r"; break; - case '\n': escaped = "\\n"; break; - case '\\': escaped = "\\\\"; break; - /* case '/': escaped = "\\/"; break; */ - case '"': escaped = "\\\""; break; - case '\f': escaped = "\\f"; break; - case '\b': escaped = "\\b"; break; - case '\t': escaped = "\\t"; break; - default: - if ((unsigned char) str[end] < 32) { - CharToHex(str[end], hexBuf + 4); - escaped = hexBuf; - } - break; - } - if (escaped != NULL) { - yajl_buf_append(buf, str + beg, end - beg); - yajl_buf_append(buf, escaped, strlen(escaped)); - beg = ++end; - } else { - ++end; - } - } - yajl_buf_append(buf, str + beg, end - beg); -} - -static void hexToDigit(unsigned int * val, const unsigned char * hex) -{ - unsigned int i; - for (i=0;i<4;i++) { - unsigned char c = hex[i]; - if (c >= 'A') c = (c & ~0x20) - 7; - c -= '0'; - assert(!(c & 0xF0)); - *val = (*val << 4) | c; - } -} - -static void Utf32toUtf8(unsigned int codepoint, char * utf8Buf) -{ - if (codepoint < 0x80) { - utf8Buf[0] = (char) codepoint; - utf8Buf[1] = 0; - } else if (codepoint < 0x0800) { - utf8Buf[0] = (char) ((codepoint >> 6) | 0xC0); - utf8Buf[1] = (char) ((codepoint & 0x3F) | 0x80); - utf8Buf[2] = 0; - } else if (codepoint < 0x10000) { - utf8Buf[0] = (char) ((codepoint >> 12) | 0xE0); - utf8Buf[1] = (char) (((codepoint >> 6) & 0x3F) | 0x80); - utf8Buf[2] = (char) ((codepoint & 0x3F) | 0x80); - utf8Buf[3] = 0; - } else if (codepoint < 0x200000) { - utf8Buf[0] =(char)((codepoint >> 18) | 0xF0); - utf8Buf[1] =(char)(((codepoint >> 12) & 0x3F) | 0x80); - utf8Buf[2] =(char)(((codepoint >> 6) & 0x3F) | 0x80); - utf8Buf[3] =(char)((codepoint & 0x3F) | 0x80); - utf8Buf[4] = 0; - } else { - utf8Buf[0] = '?'; - utf8Buf[1] = 0; - } -} - -void yajl_string_decode(yajl_buf buf, const unsigned char * str, - unsigned int len) -{ - unsigned int beg = 0; - unsigned int end = 0; - - while (end < len) { - if (str[end] == '\\') { - char utf8Buf[5]; - const char * unescaped = "?"; - yajl_buf_append(buf, str + beg, end - beg); - switch (str[++end]) { - case 'r': unescaped = "\r"; break; - case 'n': unescaped = "\n"; break; - case '\\': unescaped = "\\"; break; - case '/': unescaped = "/"; break; - case '"': unescaped = "\""; break; - case 'f': unescaped = "\f"; break; - case 'b': unescaped = "\b"; break; - case 't': unescaped = "\t"; break; - case 'u': { - unsigned int codepoint = 0; - hexToDigit(&codepoint, str + ++end); - end+=3; - /* check if this is a surrogate */ - if ((codepoint & 0xFC00) == 0xD800) { - end++; - if (str[end] == '\\' && str[end + 1] == 'u') { - unsigned int surrogate = 0; - hexToDigit(&surrogate, str + end + 2); - codepoint = - (((codepoint & 0x3F) << 10) | - ((((codepoint >> 6) & 0xF) + 1) << 16) | - (surrogate & 0x3FF)); - end += 5; - } else { - unescaped = "?"; - break; - } - } - - Utf32toUtf8(codepoint, utf8Buf); - unescaped = utf8Buf; - break; - } - default: - assert("this should never happen" == NULL); - } - yajl_buf_append(buf, unescaped, strlen(unescaped)); - beg = ++end; - } else { - end++; - } - } - yajl_buf_append(buf, str + beg, end - beg); -} diff --git a/jcnf/yajl/yajl_encode.h b/jcnf/yajl/yajl_encode.h deleted file mode 100644 index 8bd01af..0000000 --- a/jcnf/yajl/yajl_encode.h +++ /dev/null @@ -1,44 +0,0 @@ -/* - * Copyright 2007-2009, Lloyd Hilaiel. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are - * met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * - * 3. Neither the name of Lloyd Hilaiel nor the names of its - * contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR - * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED - * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE - * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, - * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES - * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR - * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGE. - */ - -#ifndef __YAJL_ENCODE_H__ -#define __YAJL_ENCODE_H__ - -#include "yajl_buf.h" - -void yajl_string_encode(yajl_buf buf, const unsigned char * str, - unsigned int length); - -void yajl_string_decode(yajl_buf buf, const unsigned char * str, - unsigned int length); - -#endif diff --git a/jcnf/yajl/yajl_gen.c b/jcnf/yajl/yajl_gen.c deleted file mode 100644 index a400176..0000000 --- a/jcnf/yajl/yajl_gen.c +++ /dev/null @@ -1,381 +0,0 @@ -/* - * Copyright 2007-2009, Lloyd Hilaiel. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are - * met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * - * 3. Neither the name of Lloyd Hilaiel nor the names of its - * contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR - * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED - * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE - * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, - * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES - * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR - * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGE. - */ - -#include "yajl_gen.h" -#include "yajl_buf.h" -#include "yajl_encode.h" - -#include -#include -#include - -typedef enum { - yajl_gen_start, - yajl_gen_map_start, - yajl_gen_map_key, - yajl_gen_map_val, - yajl_gen_array_start, - yajl_gen_in_array, - yajl_gen_complete, - yajl_gen_error -} yajl_gen_state; - -struct yajl_gen_t -{ - unsigned int depth; - unsigned int pretty; - const char * indentString; - yajl_gen_state state[YAJL_MAX_DEPTH]; - yajl_buf buf; - unsigned char *pendingComment; - unsigned int pendingLen; /* Length of pending comment */ - int pendingCpp; /* NZ if comment is C++ style, Z if C */ - /* memory allocation routines */ - yajl_alloc_funcs alloc; -}; - -yajl_gen -yajl_gen_alloc(const yajl_gen_config * config, - const yajl_alloc_funcs * afs) -{ - yajl_gen g = NULL; - yajl_alloc_funcs afsBuffer; - - /* first order of business is to set up memory allocation routines */ - if (afs != NULL) { - if (afs->malloc == NULL || afs->realloc == NULL || afs->free == NULL) - { - return NULL; - } - } else { - yajl_set_default_alloc_funcs(&afsBuffer); - afs = &afsBuffer; - } - - g = (yajl_gen) YA_MALLOC(afs, sizeof(struct yajl_gen_t)); - memset((void *) g, 0, sizeof(struct yajl_gen_t)); - /* copy in pointers to allocation routines */ - memcpy((void *) &(g->alloc), (void *) afs, sizeof(yajl_alloc_funcs)); - - if (config) { - g->pretty = config->beautify; - g->indentString = config->indentString ? config->indentString : " "; - } - g->buf = yajl_buf_alloc(&(g->alloc)); - - return g; -} - -void -yajl_gen_free(yajl_gen g) -{ - yajl_buf_free(g->buf); - YA_FREE(&(g->alloc), g); -} - -#define INSERT_EOL \ - if (g->pretty || g->pendingComment != NULL) \ - yajl_insert_eol(g); - -#define INSERT_SEP \ - if (g->state[g->depth] == yajl_gen_map_key || \ - g->state[g->depth] == yajl_gen_in_array) { \ - yajl_buf_append(g->buf, ",", 1); \ - INSERT_EOL; \ - } else if (g->state[g->depth] == yajl_gen_map_val) { \ - yajl_buf_append(g->buf, ":", 1); \ - if (g->pretty) yajl_buf_append(g->buf, " ", 1); \ - } - -#define INSERT_WHITESPACE \ - if (g->pretty) { \ - if (g->state[g->depth] != yajl_gen_map_val) { \ - unsigned int _i; \ - for (_i=0;_idepth;_i++) \ - yajl_buf_append(g->buf, g->indentString, \ - strlen(g->indentString)); \ - } \ - } - -#define INSERT_SOME_WHITESPACE \ - if (g->pretty) { \ - if (g->state[g->depth] != yajl_gen_map_val) { \ - yajl_buf_append(g->buf, g->indentString, \ - strlen(g->indentString)); \ - } \ - } - -#define ENSURE_NOT_KEY \ - if (g->state[g->depth] == yajl_gen_map_key) { \ - return yajl_gen_keys_must_be_strings; \ - } \ - -/* check that we're not complete, or in error state. in a valid state - * to be generating */ -#define ENSURE_VALID_STATE \ - if (g->state[g->depth] == yajl_gen_error) { \ - return yajl_gen_in_error_state;\ - } else if (g->state[g->depth] == yajl_gen_complete) { \ - return yajl_gen_generation_complete; \ - } - -#define INCREMENT_DEPTH \ - if (++(g->depth) >= YAJL_MAX_DEPTH) return yajl_max_depth_exceeded; - -#define APPENDED_ATOM \ - switch (g->state[g->depth]) { \ - case yajl_gen_start: \ - g->state[g->depth] = yajl_gen_complete; \ - break; \ - case yajl_gen_map_start: \ - case yajl_gen_map_key: \ - g->state[g->depth] = yajl_gen_map_val; \ - break; \ - case yajl_gen_array_start: \ - g->state[g->depth] = yajl_gen_in_array; \ - break; \ - case yajl_gen_map_val: \ - g->state[g->depth] = yajl_gen_map_key; \ - break; \ - default: \ - break; \ - } \ - -#define FINAL_NEWLINE \ - if (g->pretty && g->state[g->depth] == yajl_gen_complete) \ - INSERT_EOL - -/* Insert an end of line, and take care of any */ -/* pending comments */ -static void yajl_insert_eol(yajl_gen g) { - if (g->pendingComment != NULL) { - INSERT_SOME_WHITESPACE; - if (g->pendingCpp) - yajl_buf_append(g->buf, "//", 2); - else - yajl_buf_append(g->buf, "/*", 2); - yajl_string_encode(g->buf, g->pendingComment, g->pendingLen); - if (!g->pendingCpp) - yajl_buf_append(g->buf, "*/", 2); - free(g->pendingComment); - g->pendingComment = NULL; - g->pendingLen = 0; - g->pendingCpp = 0; - } - yajl_buf_append(g->buf, "\n", 1); -} - -/* Insert a comment at the end of the line. Append if there is already */ -/* one pending. */ -static void yajl_insert_pending_comment( -yajl_gen g, const unsigned char * str, unsigned int len, int cpp) { - if (g->pendingComment != NULL) { - unsigned int tlen = g->pendingLen + 0 + len; - unsigned char *pendingComment; - pendingComment = (unsigned char *) realloc(g->pendingComment, sizeof(char) * tlen); - memcpy(pendingComment + g->pendingLen + 0, str, len); - g->pendingComment = pendingComment; - g->pendingLen = tlen; - } else { - g->pendingComment = (unsigned char *) malloc(sizeof(char) * len); - memcpy(g->pendingComment, str, len); - g->pendingLen = len; - } - g->pendingCpp = cpp; -} - -yajl_gen_status -yajl_gen_integer(yajl_gen g, long int number) -{ - char i[32]; - ENSURE_VALID_STATE; ENSURE_NOT_KEY; INSERT_SEP; INSERT_WHITESPACE; - sprintf(i, "%ld", number); - yajl_buf_append(g->buf, i, strlen(i)); - APPENDED_ATOM; - FINAL_NEWLINE; - return yajl_gen_status_ok; -} - -yajl_gen_status -yajl_gen_double(yajl_gen g, double number) -{ - char i[32]; - ENSURE_VALID_STATE; ENSURE_NOT_KEY; INSERT_SEP; INSERT_WHITESPACE; - sprintf(i, "%g", number); - yajl_buf_append(g->buf, i, strlen(i)); - APPENDED_ATOM; - FINAL_NEWLINE; - return yajl_gen_status_ok; -} - -yajl_gen_status -yajl_gen_number(yajl_gen g, const char * s, unsigned int l) -{ - ENSURE_VALID_STATE; ENSURE_NOT_KEY; INSERT_SEP; INSERT_WHITESPACE; - yajl_buf_append(g->buf, s, l); - APPENDED_ATOM; - FINAL_NEWLINE; - return yajl_gen_status_ok; -} - -yajl_gen_status -yajl_gen_string(yajl_gen g, const unsigned char * str, - unsigned int len) -{ - ENSURE_VALID_STATE; INSERT_SEP; INSERT_WHITESPACE; - yajl_buf_append(g->buf, "\"", 1); - yajl_string_encode(g->buf, str, len); - yajl_buf_append(g->buf, "\"", 1); - APPENDED_ATOM; - FINAL_NEWLINE; - return yajl_gen_status_ok; -} - -yajl_gen_status -yajl_gen_null(yajl_gen g) -{ - ENSURE_VALID_STATE; ENSURE_NOT_KEY; INSERT_SEP; INSERT_WHITESPACE; - yajl_buf_append(g->buf, "null", strlen("null")); - APPENDED_ATOM; - FINAL_NEWLINE; - return yajl_gen_status_ok; -} - -yajl_gen_status -yajl_gen_bool(yajl_gen g, int boolean) -{ - const char * val = boolean ? "true" : "false"; - - ENSURE_VALID_STATE; ENSURE_NOT_KEY; INSERT_SEP; INSERT_WHITESPACE; - yajl_buf_append(g->buf, val, strlen(val)); - APPENDED_ATOM; - FINAL_NEWLINE; - return yajl_gen_status_ok; -} - -yajl_gen_status -yajl_gen_map_open(yajl_gen g) -{ - ENSURE_VALID_STATE; ENSURE_NOT_KEY; INSERT_SEP; INSERT_WHITESPACE; - INCREMENT_DEPTH; - - g->state[g->depth] = yajl_gen_map_start; - yajl_buf_append(g->buf, "{", 1); - INSERT_EOL; - FINAL_NEWLINE; - return yajl_gen_status_ok; -} - -yajl_gen_status -yajl_gen_map_close(yajl_gen g) -{ - ENSURE_VALID_STATE; - (g->depth)--; - INSERT_EOL; - APPENDED_ATOM; - INSERT_WHITESPACE; - yajl_buf_append(g->buf, "}", 1); - FINAL_NEWLINE; - return yajl_gen_status_ok; -} - -yajl_gen_status -yajl_gen_array_open(yajl_gen g) -{ - ENSURE_VALID_STATE; ENSURE_NOT_KEY; INSERT_SEP; INSERT_WHITESPACE; - INCREMENT_DEPTH; - g->state[g->depth] = yajl_gen_array_start; - yajl_buf_append(g->buf, "[", 1); - INSERT_EOL; - FINAL_NEWLINE; - return yajl_gen_status_ok; -} - -yajl_gen_status -yajl_gen_array_close(yajl_gen g) -{ - ENSURE_VALID_STATE; - INSERT_EOL; - (g->depth)--; - APPENDED_ATOM; - INSERT_WHITESPACE; - yajl_buf_append(g->buf, "]", 1); - FINAL_NEWLINE; - return yajl_gen_status_ok; -} - -yajl_gen_status -yajl_gen_c_comment(yajl_gen g, const unsigned char * str, - unsigned int len, int dlytoeol) -{ - ENSURE_VALID_STATE; - if (dlytoeol) { - yajl_insert_pending_comment(g, str, len, 0); - } else { - if (g->pretty) - yajl_buf_append(g->buf, " /*", 3); - else - yajl_buf_append(g->buf, "/*", 2); - yajl_string_encode(g->buf, str, len); - if (g->pretty) - yajl_buf_append(g->buf, "*/ ", 3); - else - yajl_buf_append(g->buf, "*/", 2); - } - FINAL_NEWLINE; - return yajl_gen_status_ok; -} - -yajl_gen_status -yajl_gen_cpp_comment(yajl_gen g, const unsigned char * str, - unsigned int len) -{ - ENSURE_VALID_STATE; - yajl_insert_pending_comment(g, str, len, 1); - FINAL_NEWLINE; - return yajl_gen_status_ok; -} - -yajl_gen_status -yajl_gen_get_buf(yajl_gen g, const unsigned char ** buf, - unsigned int * len) -{ - *buf = yajl_buf_data(g->buf); - *len = yajl_buf_len(g->buf); - return yajl_gen_status_ok; -} - -void -yajl_gen_clear(yajl_gen g) -{ - yajl_buf_clear(g->buf); -} diff --git a/jcnf/yajl/yajl_gen.h b/jcnf/yajl/yajl_gen.h deleted file mode 100644 index 5bde0e8..0000000 --- a/jcnf/yajl/yajl_gen.h +++ /dev/null @@ -1,129 +0,0 @@ -/* - * Copyright 2007-2009, Lloyd Hilaiel. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are - * met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * - * 3. Neither the name of Lloyd Hilaiel nor the names of its - * contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR - * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED - * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE - * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, - * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES - * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR - * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGE. - */ - -/** - * \file yajl_gen.h - * Interface to YAJL's JSON generation facilities. - */ - -#include "yajl_common.h" - -#ifndef __YAJL_GEN_H__ -#define __YAJL_GEN_H__ - -#ifdef __cplusplus -extern "C" { -#endif - /** generator status codes */ - typedef enum { - /** no error */ - yajl_gen_status_ok = 0, - /** at a point where a map key is generated, a function other than - * yajl_gen_string was called */ - yajl_gen_keys_must_be_strings, - /** YAJL's maximum generation depth was exceeded. see - * YAJL_MAX_DEPTH */ - yajl_max_depth_exceeded, - /** A generator function (yajl_gen_XXX) was called while in an error - * state */ - yajl_gen_in_error_state, - /** A complete JSON document has been generated */ - yajl_gen_generation_complete - } yajl_gen_status; - - /** an opaque handle to a generator */ - typedef struct yajl_gen_t * yajl_gen; - - /** configuration structure for the generator */ - typedef struct { - /** generate indented (beautiful) output */ - unsigned int beautify; - /** an opportunity to define an indent string. such as \\t or - * some number of spaces. default is four spaces ' '. This - * member is only relevant when beautify is true */ - const char * indentString; - } yajl_gen_config; - - /** allocate a generator handle - * \param config a pointer to a structure containing parameters which - * configure the behavior of the json generator - * \param allocFuncs an optional pointer to a structure which allows - * the client to overide the memory allocation - * used by yajl. May be NULL, in which case - * malloc/free/realloc will be used. - * - * \returns an allocated handle on success, NULL on failure (bad params) - */ - yajl_gen YAJL_API yajl_gen_alloc(const yajl_gen_config * config, - const yajl_alloc_funcs * allocFuncs); - - /** free a generator handle */ - void YAJL_API yajl_gen_free(yajl_gen handle); - - yajl_gen_status YAJL_API yajl_gen_integer(yajl_gen hand, long int number); - yajl_gen_status YAJL_API yajl_gen_double(yajl_gen hand, double number); - yajl_gen_status YAJL_API yajl_gen_number(yajl_gen hand, - const char * num, - unsigned int len); - yajl_gen_status YAJL_API yajl_gen_string(yajl_gen hand, - const unsigned char * str, - unsigned int len); - yajl_gen_status YAJL_API yajl_gen_null(yajl_gen hand); - yajl_gen_status YAJL_API yajl_gen_bool(yajl_gen hand, int boolean); - yajl_gen_status YAJL_API yajl_gen_map_open(yajl_gen hand); - yajl_gen_status YAJL_API yajl_gen_map_close(yajl_gen hand); - yajl_gen_status YAJL_API yajl_gen_array_open(yajl_gen hand); - yajl_gen_status YAJL_API yajl_gen_array_close(yajl_gen hand); - yajl_gen_status YAJL_API yajl_gen_c_comment(yajl_gen hand, - const unsigned char * str, - unsigned int len, int dlytoeol); - yajl_gen_status YAJL_API yajl_gen_cpp_comment(yajl_gen hand, - const unsigned char * str, - unsigned int len); - - /** access the null terminated generator buffer. If incrementally - * outputing JSON, one should call yajl_gen_clear to clear the - * buffer. This allows stream generation. */ - yajl_gen_status YAJL_API yajl_gen_get_buf(yajl_gen hand, - const unsigned char ** buf, - unsigned int * len); - - /** clear yajl's output buffer, but maintain all internal generation - * state. This function will not "reset" the generator state, and is - * intended to enable incremental JSON outputing. */ - void YAJL_API yajl_gen_clear(yajl_gen hand); - -#ifdef __cplusplus -} -#endif - -#endif diff --git a/jcnf/yajl/yajl_lex.c b/jcnf/yajl/yajl_lex.c deleted file mode 100644 index 56e563e..0000000 --- a/jcnf/yajl/yajl_lex.c +++ /dev/null @@ -1,753 +0,0 @@ -/* - * Copyright 2007-2009, Lloyd Hilaiel. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are - * met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * - * 3. Neither the name of Lloyd Hilaiel nor the names of its - * contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR - * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED - * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE - * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, - * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES - * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR - * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGE. - */ - -#include "yajl_lex.h" -#include "yajl_buf.h" - -#include -#include -#include -#include - -#ifdef YAJL_LEXER_DEBUG -static const char * -tokToStr(yajl_tok tok) -{ - switch (tok) { - case yajl_tok_bool: return "bool"; - case yajl_tok_colon: return "colon"; - case yajl_tok_comma: return "comma"; - case yajl_tok_eof: return "eof"; - case yajl_tok_error: return "error"; - case yajl_tok_left_brace: return "brace"; - case yajl_tok_left_bracket: return "bracket"; - case yajl_tok_null: return "null"; - case yajl_tok_integer: return "integer"; - case yajl_tok_double: return "double"; - case yajl_tok_right_brace: return "brace"; - case yajl_tok_right_bracket: return "bracket"; - case yajl_tok_string: return "string"; - case yajl_tok_string_with_escapes: return "string_with_escapes"; - case yajl_tok_c_comment: return "C comment"; - case yajl_tok_cpp_comment: return "C++ comment"; - } - return "unknown"; -} -#endif - -/* Impact of the stream parsing feature on the lexer: - * - * YAJL support stream parsing. That is, the ability to parse the first - * bits of a chunk of JSON before the last bits are available (still on - * the network or disk). This makes the lexer more complex. The - * responsibility of the lexer is to handle transparently the case where - * a chunk boundary falls in the middle of a token. This is - * accomplished is via a buffer and a character reading abstraction. - * - * Overview of implementation - * - * When we lex to end of input string before end of token is hit, we - * copy all of the input text composing the token into our lexBuf. - * - * Every time we read a character, we do so through the readChar function. - * readChar's responsibility is to handle pulling all chars from the buffer - * before pulling chars from input text - */ - -struct yajl_lexer_t { - /* the overal line and char offset into the data */ - unsigned int lineOff; - unsigned int charOff; - - /* error */ - yajl_lex_error error; - - /* a input buffer to handle the case where a token is spread over - * multiple chunks */ - yajl_buf buf; - - /* in the case where we have data in the lexBuf, bufOff holds - * the current offset into the lexBuf. */ - unsigned int bufOff; - - /* are we using the lex buf? */ - unsigned int bufInUse; - - /* shall we allow comments? */ - unsigned int allowComments; - - /* shall we validate utf8 inside strings? */ - unsigned int validateUTF8; - - yajl_alloc_funcs * alloc; -}; - -#define readChar(lxr, txt, off) \ - (((lxr)->bufInUse && yajl_buf_len((lxr)->buf) && lxr->bufOff < yajl_buf_len((lxr)->buf)) ? \ - (*((const unsigned char *) yajl_buf_data((lxr)->buf) + ((lxr)->bufOff)++)) : \ - ((txt)[(*(off))++])) - -#define unreadChar(lxr, off) ((*(off) > 0) ? (*(off))-- : ((lxr)->bufOff--)) - -yajl_lexer -yajl_lex_alloc(yajl_alloc_funcs * alloc, - unsigned int allowComments, unsigned int validateUTF8) -{ - yajl_lexer lxr = (yajl_lexer) YA_MALLOC(alloc, sizeof(struct yajl_lexer_t)); - memset((void *) lxr, 0, sizeof(struct yajl_lexer_t)); - lxr->buf = yajl_buf_alloc(alloc); - lxr->allowComments = allowComments; - lxr->validateUTF8 = validateUTF8; - lxr->alloc = alloc; - return lxr; -} - -void -yajl_lex_free(yajl_lexer lxr) -{ - yajl_buf_free(lxr->buf); - YA_FREE(lxr->alloc, lxr); - return; -} - -/* a lookup table which lets us quickly determine three things: - * VEC - valid escaped conrol char - * IJC - invalid json char - * VHC - valid hex char - * note. the solidus '/' may be escaped or not. - * note. the - */ -#define VEC 1 -#define IJC 2 -#define VHC 4 -static const char charLookupTable[256] = -{ -/*00*/ IJC , IJC , IJC , IJC , IJC , IJC , IJC , IJC , -/*08*/ IJC , IJC , IJC , IJC , IJC , IJC , IJC , IJC , -/*10*/ IJC , IJC , IJC , IJC , IJC , IJC , IJC , IJC , -/*18*/ IJC , IJC , IJC , IJC , IJC , IJC , IJC , IJC , - -/*20*/ 0 , 0 , VEC|IJC, 0 , 0 , 0 , 0 , 0 , -/*28*/ 0 , 0 , 0 , 0 , 0 , 0 , 0 , VEC , -/*30*/ VHC , VHC , VHC , VHC , VHC , VHC , VHC , VHC , -/*38*/ VHC , VHC , 0 , 0 , 0 , 0 , 0 , 0 , - -/*40*/ 0 , VHC , VHC , VHC , VHC , VHC , VHC , 0 , -/*48*/ 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , -/*50*/ 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , -/*58*/ 0 , 0 , 0 , 0 , VEC|IJC, 0 , 0 , 0 , - -/*60*/ 0 , VHC , VEC|VHC, VHC , VHC , VHC , VEC|VHC, 0 , -/*68*/ 0 , 0 , 0 , 0 , 0 , 0 , VEC , 0 , -/*70*/ 0 , 0 , VEC , 0 , VEC , 0 , 0 , 0 , -/*78*/ 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , - -/* include these so we don't have to always check the range of the char */ - 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , - 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , - 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , - 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , - - 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , - 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , - 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , - 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , - - 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , - 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , - 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , - 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , - - 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , - 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , - 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , - 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 -}; - -/** process a variable length utf8 encoded codepoint. - * - * returns: - * yajl_tok_string - if valid utf8 char was parsed and offset was - * advanced - * yajl_tok_eof - if end of input was hit before validation could - * complete - * yajl_tok_error - if invalid utf8 was encountered - * - * NOTE: on error the offset will point to the first char of the - * invalid utf8 */ -#define UTF8_CHECK_EOF if (*offset >= jsonTextLen) { return yajl_tok_eof; } - -static yajl_tok -yajl_lex_utf8_char(yajl_lexer lexer, const unsigned char * jsonText, - unsigned int jsonTextLen, unsigned int * offset, - unsigned char curChar) -{ - if (curChar <= 0x7f) { - /* single byte */ - return yajl_tok_string; - } else if ((curChar >> 5) == 0x6) { - /* two byte */ - UTF8_CHECK_EOF; - curChar = readChar(lexer, jsonText, offset); - if ((curChar >> 6) == 0x2) return yajl_tok_string; - } else if ((curChar >> 4) == 0x0e) { - /* three byte */ - UTF8_CHECK_EOF; - curChar = readChar(lexer, jsonText, offset); - if ((curChar >> 6) == 0x2) { - UTF8_CHECK_EOF; - curChar = readChar(lexer, jsonText, offset); - if ((curChar >> 6) == 0x2) return yajl_tok_string; - } - } else if ((curChar >> 3) == 0x1e) { - /* four byte */ - UTF8_CHECK_EOF; - curChar = readChar(lexer, jsonText, offset); - if ((curChar >> 6) == 0x2) { - UTF8_CHECK_EOF; - curChar = readChar(lexer, jsonText, offset); - if ((curChar >> 6) == 0x2) { - UTF8_CHECK_EOF; - curChar = readChar(lexer, jsonText, offset); - if ((curChar >> 6) == 0x2) return yajl_tok_string; - } - } - } - - return yajl_tok_error; -} - -/* lex a string. input is the lexer, pointer to beginning of - * json text, and start of string (offset). - * a token is returned which has the following meanings: - * yajl_tok_string: lex of string was successful. offset points to - * terminating '"'. - * yajl_tok_eof: end of text was encountered before we could complete - * the lex. - * yajl_tok_error: embedded in the string were unallowable chars. offset - * points to the offending char - */ -#define STR_CHECK_EOF \ -if (*offset >= jsonTextLen) { \ - tok = yajl_tok_eof; \ - goto finish_string_lex; \ -} - -static yajl_tok -yajl_lex_string(yajl_lexer lexer, const unsigned char * jsonText, - unsigned int jsonTextLen, unsigned int * offset) -{ - yajl_tok tok = yajl_tok_error; - int hasEscapes = 0; - - for (;;) { - unsigned char curChar; - - STR_CHECK_EOF; - - curChar = readChar(lexer, jsonText, offset); - - /* quote terminates */ - if (curChar == '"') { - tok = yajl_tok_string; - break; - } - /* backslash escapes a set of control chars, */ - else if (curChar == '\\') { - hasEscapes = 1; - STR_CHECK_EOF; - - /* special case \u */ - curChar = readChar(lexer, jsonText, offset); - if (curChar == 'u') { - unsigned int i = 0; - - for (i=0;i<4;i++) { - STR_CHECK_EOF; - curChar = readChar(lexer, jsonText, offset); - if (!(charLookupTable[curChar] & VHC)) { - /* back up to offending char */ - unreadChar(lexer, offset); - lexer->error = yajl_lex_string_invalid_hex_char; - goto finish_string_lex; - } - } - } else if (!(charLookupTable[curChar] & VEC)) { - /* back up to offending char */ - unreadChar(lexer, offset); - lexer->error = yajl_lex_string_invalid_escaped_char; - goto finish_string_lex; - } - } - /* when not validating UTF8 it's a simple table lookup to determine - * if the present character is invalid */ - else if(charLookupTable[curChar] & IJC) { - /* back up to offending char */ - unreadChar(lexer, offset); - lexer->error = yajl_lex_string_invalid_json_char; - goto finish_string_lex; - } - /* when in validate UTF8 mode we need to do some extra work */ - else if (lexer->validateUTF8) { - yajl_tok t = yajl_lex_utf8_char(lexer, jsonText, jsonTextLen, - offset, curChar); - - if (t == yajl_tok_eof) { - tok = yajl_tok_eof; - goto finish_string_lex; - } else if (t == yajl_tok_error) { - lexer->error = yajl_lex_string_invalid_utf8; - goto finish_string_lex; - } - } - /* accept it, and move on */ - } - finish_string_lex: - /* tell our buddy, the parser, wether he needs to process this string - * again */ - if (hasEscapes && tok == yajl_tok_string) { - tok = yajl_tok_string_with_escapes; - } - - return tok; -} - -#define RETURN_IF_EOF if (*offset >= jsonTextLen) return yajl_tok_eof; - -static yajl_tok -yajl_lex_number(yajl_lexer lexer, const unsigned char * jsonText, - unsigned int jsonTextLen, unsigned int * offset) -{ - /** XXX: numbers are the only entities in json that we must lex - * _beyond_ in order to know that they are complete. There - * is an ambiguous case for integers at EOF. */ - - unsigned char c; - - yajl_tok tok = yajl_tok_integer; - - RETURN_IF_EOF; - c = readChar(lexer, jsonText, offset); - - /* optional leading minus */ - if (c == '-') { - RETURN_IF_EOF; - c = readChar(lexer, jsonText, offset); - } - - /* a single zero, or a series of integers */ - if (c == '0') { - RETURN_IF_EOF; - c = readChar(lexer, jsonText, offset); - } else if (c >= '1' && c <= '9') { - do { - RETURN_IF_EOF; - c = readChar(lexer, jsonText, offset); - } while (c >= '0' && c <= '9'); - } else { - unreadChar(lexer, offset); - lexer->error = yajl_lex_missing_integer_after_minus; - return yajl_tok_error; - } - - /* optional fraction (indicates this is floating point) */ - if (c == '.') { - int numRd = 0; - - RETURN_IF_EOF; - c = readChar(lexer, jsonText, offset); - - while (c >= '0' && c <= '9') { - numRd++; - RETURN_IF_EOF; - c = readChar(lexer, jsonText, offset); - } - - if (!numRd) { - unreadChar(lexer, offset); - lexer->error = yajl_lex_missing_integer_after_decimal; - return yajl_tok_error; - } - tok = yajl_tok_double; - } - - /* optional exponent (indicates this is floating point) */ - if (c == 'e' || c == 'E') { - RETURN_IF_EOF; - c = readChar(lexer, jsonText, offset); - - /* optional sign */ - if (c == '+' || c == '-') { - RETURN_IF_EOF; - c = readChar(lexer, jsonText, offset); - } - - if (c >= '0' && c <= '9') { - do { - RETURN_IF_EOF; - c = readChar(lexer, jsonText, offset); - } while (c >= '0' && c <= '9'); - } else { - unreadChar(lexer, offset); - lexer->error = yajl_lex_missing_integer_after_exponent; - return yajl_tok_error; - } - tok = yajl_tok_double; - } - - /* we always go "one too far" */ - unreadChar(lexer, offset); - - return tok; -} - -static yajl_tok -yajl_lex_comment(yajl_lexer lexer, const unsigned char * jsonText, - unsigned int jsonTextLen, unsigned int * offset) -{ - unsigned char c; - - yajl_tok tok; - - RETURN_IF_EOF; - c = readChar(lexer, jsonText, offset); - - /* either slash or star expected */ - if (c == '/') { - tok = yajl_tok_cpp_comment; - /* now we throw away until end of line */ - do { - RETURN_IF_EOF; - c = readChar(lexer, jsonText, offset); - } while (c != '\n'); - } else if (c == '*') { - tok = yajl_tok_c_comment; - /* now we throw away until end of comment */ - for (;;) { - RETURN_IF_EOF; - c = readChar(lexer, jsonText, offset); - if (c == '*') { - RETURN_IF_EOF; - c = readChar(lexer, jsonText, offset); - if (c == '/') { - break; - } else { - unreadChar(lexer, offset); - } - } - } - } else { - lexer->error = yajl_lex_invalid_char; - tok = yajl_tok_error; - } - - return tok; -} - -yajl_tok -yajl_lex_lex(yajl_lexer lexer, const unsigned char * jsonText, - unsigned int jsonTextLen, unsigned int * offset, - const unsigned char ** outBuf, unsigned int * outLen) -{ - yajl_tok tok = yajl_tok_error; - unsigned char c; - unsigned int startOffset = *offset; - - *outBuf = NULL; - *outLen = 0; - - for (;;) { - assert(*offset <= jsonTextLen); - - if (*offset >= jsonTextLen) { - tok = yajl_tok_eof; - goto lexed; - } - - c = readChar(lexer, jsonText, offset); - - switch (c) { - case '{': - tok = yajl_tok_left_bracket; - goto lexed; - case '}': - tok = yajl_tok_right_bracket; - goto lexed; - case '[': - tok = yajl_tok_left_brace; - goto lexed; - case ']': - tok = yajl_tok_right_brace; - goto lexed; - case ',': - tok = yajl_tok_comma; - goto lexed; - case ':': - tok = yajl_tok_colon; - goto lexed; - case '\t': case '\n': case '\v': case '\f': case '\r': case ' ': - startOffset++; - break; - case 't': { - const char * want = "rue"; - do { - if (*offset >= jsonTextLen) { - tok = yajl_tok_eof; - goto lexed; - } - c = readChar(lexer, jsonText, offset); - if (c != *want) { - unreadChar(lexer, offset); - lexer->error = yajl_lex_invalid_string; - tok = yajl_tok_error; - goto lexed; - } - } while (*(++want)); - tok = yajl_tok_bool; - goto lexed; - } - case 'f': { - const char * want = "alse"; - do { - if (*offset >= jsonTextLen) { - tok = yajl_tok_eof; - goto lexed; - } - c = readChar(lexer, jsonText, offset); - if (c != *want) { - unreadChar(lexer, offset); - lexer->error = yajl_lex_invalid_string; - tok = yajl_tok_error; - goto lexed; - } - } while (*(++want)); - tok = yajl_tok_bool; - goto lexed; - } - case 'n': { - const char * want = "ull"; - do { - if (*offset >= jsonTextLen) { - tok = yajl_tok_eof; - goto lexed; - } - c = readChar(lexer, jsonText, offset); - if (c != *want) { - unreadChar(lexer, offset); - lexer->error = yajl_lex_invalid_string; - tok = yajl_tok_error; - goto lexed; - } - } while (*(++want)); - tok = yajl_tok_null; - goto lexed; - } - case '"': { - tok = yajl_lex_string(lexer, (const unsigned char *) jsonText, - jsonTextLen, offset); - goto lexed; - } - case '-': - case '0': case '1': case '2': case '3': case '4': - case '5': case '6': case '7': case '8': case '9': { - /* integer parsing wants to start from the beginning */ - unreadChar(lexer, offset); - tok = yajl_lex_number(lexer, (const unsigned char *) jsonText, - jsonTextLen, offset); - goto lexed; - } - case '/': - /* hey, look, a probable comment! If comments are disabled - * it's an error. */ - if (!lexer->allowComments) { - unreadChar(lexer, offset); - lexer->error = yajl_lex_unallowed_comment; - tok = yajl_tok_error; - goto lexed; - } - /* if comments are enabled, then we should try to lex - * the thing. possible outcomes are - * - successful lex (tok_comment, which means continue), - * - malformed comment opening (slash not followed by - * '*' or '/') (tok_error) - * - eof hit. (tok_eof) */ - tok = yajl_lex_comment(lexer, (const unsigned char *) jsonText, - jsonTextLen, offset); - if (tok == yajl_tok_c_comment - || tok == yajl_tok_cpp_comment) { - goto lexed; - } - /* hit error or eof, bail */ - goto lexed; - default: - lexer->error = yajl_lex_invalid_char; - tok = yajl_tok_error; - goto lexed; - } - } - - - lexed: - /* need to append to buffer if the buffer is in use or - * if it's an EOF token */ - if (tok == yajl_tok_eof || lexer->bufInUse) { - if (!lexer->bufInUse) yajl_buf_clear(lexer->buf); - lexer->bufInUse = 1; - yajl_buf_append(lexer->buf, jsonText + startOffset, *offset - startOffset); - lexer->bufOff = 0; - - if (tok != yajl_tok_eof) { - *outBuf = yajl_buf_data(lexer->buf); - *outLen = yajl_buf_len(lexer->buf); - lexer->bufInUse = 0; - } - } else if (tok != yajl_tok_error) { - *outBuf = jsonText + startOffset; - *outLen = *offset - startOffset; - } - - /* special case for strings. skip the quotes. */ - if (tok == yajl_tok_string || tok == yajl_tok_string_with_escapes) - { - assert(*outLen >= 2); - (*outBuf)++; - *outLen -= 2; - } - - /* remove comment delimeters */ - if (tok == yajl_tok_c_comment) - { - assert(*outLen >= 4); - (*outBuf)+= 2; - *outLen -= 4; - } - if (tok == yajl_tok_cpp_comment) - { - assert(*outLen >= 2); - (*outBuf)+= 2; - *outLen -= 2; - - if (*outLen >= 1 && (*outBuf)[(*outLen)-1] == 0x0a) - *outLen -= 1; - } - - -#ifdef YAJL_LEXER_DEBUG - if (tok == yajl_tok_error) { - printf("lexical error: %s\n", - yajl_lex_error_to_string(yajl_lex_get_error(lexer))); - } else if (tok == yajl_tok_eof) { - printf("EOF hit\n"); - } else { - printf("lexed %s: '", tokToStr(tok)); - fwrite(*outBuf, 1, *outLen, stdout); - printf("'\n"); - } -#endif - - return tok; -} - -const char * -yajl_lex_error_to_string(yajl_lex_error error) -{ - switch (error) { - case yajl_lex_e_ok: - return "ok, no error"; - case yajl_lex_string_invalid_utf8: - return "invalid bytes in UTF8 string."; - case yajl_lex_string_invalid_escaped_char: - return "inside a string, '\\' occurs before a character " - "which it may not."; - case yajl_lex_string_invalid_json_char: - return "invalid character inside string."; - case yajl_lex_string_invalid_hex_char: - return "invalid (non-hex) character occurs after '\\u' inside " - "string."; - case yajl_lex_invalid_char: - return "invalid char in json text."; - case yajl_lex_invalid_string: - return "invalid string in json text."; - case yajl_lex_missing_integer_after_exponent: - return "malformed number, a digit is required after the exponent."; - case yajl_lex_missing_integer_after_decimal: - return "malformed number, a digit is required after the " - "decimal point."; - case yajl_lex_missing_integer_after_minus: - return "malformed number, a digit is required after the " - "minus sign."; - case yajl_lex_unallowed_comment: - return "probable comment found in input text, comments are " - "not enabled."; - } - return "unknown error code"; -} - - -/** allows access to more specific information about the lexical - * error when yajl_lex_lex returns yajl_tok_error. */ -yajl_lex_error -yajl_lex_get_error(yajl_lexer lexer) -{ - if (lexer == NULL) return (yajl_lex_error) -1; - return lexer->error; -} - -unsigned int yajl_lex_current_line(yajl_lexer lexer) -{ - return lexer->lineOff; -} - -unsigned int yajl_lex_current_char(yajl_lexer lexer) -{ - return lexer->charOff; -} - -yajl_tok yajl_lex_peek(yajl_lexer lexer, const unsigned char * jsonText, - unsigned int jsonTextLen, unsigned int offset) -{ - const unsigned char * outBuf; - unsigned int outLen; - unsigned int bufLen = yajl_buf_len(lexer->buf); - unsigned int bufOff = lexer->bufOff; - unsigned int bufInUse = lexer->bufInUse; - yajl_tok tok; - - tok = yajl_lex_lex(lexer, jsonText, jsonTextLen, &offset, - &outBuf, &outLen); - - lexer->bufOff = bufOff; - lexer->bufInUse = bufInUse; - yajl_buf_truncate(lexer->buf, bufLen); - - return tok; -} diff --git a/jcnf/yajl/yajl_lex.h b/jcnf/yajl/yajl_lex.h deleted file mode 100644 index e1268ea..0000000 --- a/jcnf/yajl/yajl_lex.h +++ /dev/null @@ -1,135 +0,0 @@ -/* - * Copyright 2007-2009, Lloyd Hilaiel. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are - * met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * - * 3. Neither the name of Lloyd Hilaiel nor the names of its - * contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR - * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED - * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE - * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, - * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES - * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR - * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGE. - */ - -#ifndef __YAJL_LEX_H__ -#define __YAJL_LEX_H__ - -#include "yajl_common.h" - -typedef enum { - yajl_tok_bool, - yajl_tok_colon, - yajl_tok_comma, - yajl_tok_eof, - yajl_tok_error, - yajl_tok_left_brace, - yajl_tok_left_bracket, - yajl_tok_null, - yajl_tok_right_brace, - yajl_tok_right_bracket, - - /* we differentiate between integers and doubles to allow the - * parser to interpret the number without re-scanning */ - yajl_tok_integer, - yajl_tok_double, - - /* we differentiate between strings which require further processing, - * and strings that do not */ - yajl_tok_string, - yajl_tok_string_with_escapes, - - /* we return the two types of comment tokens as well */ - yajl_tok_c_comment, - yajl_tok_cpp_comment - -} yajl_tok; - -typedef struct yajl_lexer_t * yajl_lexer; - -yajl_lexer yajl_lex_alloc(yajl_alloc_funcs * alloc, - unsigned int allowComments, - unsigned int validateUTF8); - -void yajl_lex_free(yajl_lexer lexer); - -/** - * run/continue a lex. "offset" is an input/output parameter. - * It should be initialized to zero for a - * new chunk of target text, and upon subsetquent calls with the same - * target text should passed with the value of the previous invocation. - * - * the client may be interested in the value of offset when an error is - * returned from the lexer. This allows the client to render useful -n * error messages. - * - * When you pass the next chunk of data, context should be reinitialized - * to zero. - * - * Finally, the output buffer is usually just a pointer into the jsonText, - * however in cases where the entity being lexed spans multiple chunks, - * the lexer will buffer the entity and the data returned will be - * a pointer into that buffer. - * - * This behavior is abstracted from client code except for the performance - * implications which require that the client choose a reasonable chunk - * size to get adequate performance. - */ -yajl_tok yajl_lex_lex(yajl_lexer lexer, const unsigned char * jsonText, - unsigned int jsonTextLen, unsigned int * offset, - const unsigned char ** outBuf, unsigned int * outLen); - -/** have a peek at the next token, but don't move the lexer forward */ -yajl_tok yajl_lex_peek(yajl_lexer lexer, const unsigned char * jsonText, - unsigned int jsonTextLen, unsigned int offset); - - -typedef enum { - yajl_lex_e_ok = 0, - yajl_lex_string_invalid_utf8, - yajl_lex_string_invalid_escaped_char, - yajl_lex_string_invalid_json_char, - yajl_lex_string_invalid_hex_char, - yajl_lex_invalid_char, - yajl_lex_invalid_string, - yajl_lex_missing_integer_after_decimal, - yajl_lex_missing_integer_after_exponent, - yajl_lex_missing_integer_after_minus, - yajl_lex_unallowed_comment -} yajl_lex_error; - -const char * yajl_lex_error_to_string(yajl_lex_error error); - -/** allows access to more specific information about the lexical - * error when yajl_lex_lex returns yajl_tok_error. */ -yajl_lex_error yajl_lex_get_error(yajl_lexer lexer); - -/** get the current offset into the most recently lexed json string. */ -unsigned int yajl_lex_current_offset(yajl_lexer lexer); - -/** get the number of lines lexed by this lexer instance */ -unsigned int yajl_lex_current_line(yajl_lexer lexer); - -/** get the number of chars lexed by this lexer instance since the last - * \n or \r */ -unsigned int yajl_lex_current_char(yajl_lexer lexer); - -#endif diff --git a/jcnf/yajl/yajl_parse.h b/jcnf/yajl/yajl_parse.h deleted file mode 100644 index 250d3e1..0000000 --- a/jcnf/yajl/yajl_parse.h +++ /dev/null @@ -1,184 +0,0 @@ -/* - * Copyright 2007-2009, Lloyd Hilaiel. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are - * met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * - * 3. Neither the name of Lloyd Hilaiel nor the names of its - * contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR - * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED - * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE - * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, - * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES - * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR - * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGE. - */ - -/** - * \file yajl_parse.h - * Interface to YAJL's JSON parsing facilities. - */ - -#include "yajl_common.h" - -#ifndef __YAJL_PARSE_H__ -#define __YAJL_PARSE_H__ - -#ifdef __cplusplus -extern "C" { -#endif - /** error codes returned from this interface */ - typedef enum { - /** no error was encountered */ - yajl_status_ok, - /** a client callback returned zero, stopping the parse */ - yajl_status_client_canceled, - /** The parse cannot yet complete because more json input text - * is required, call yajl_parse with the next buffer of input text. - * (pertinent only when stream parsing) */ - yajl_status_insufficient_data, - /** An error occured during the parse. Call yajl_get_error for - * more information about the encountered error */ - yajl_status_error - } yajl_status; - - /** attain a human readable, english, string for an error */ - const char * YAJL_API yajl_status_to_string(yajl_status code); - - /** an opaque handle to a parser */ - typedef struct yajl_handle_t * yajl_handle; - - /** yajl is an event driven parser. this means as json elements are - * parsed, you are called back to do something with the data. The - * functions in this table indicate the various events for which - * you will be called back. Each callback accepts a "context" - * pointer, this is a void * that is passed into the yajl_parse - * function which the client code may use to pass around context. - * - * All callbacks return an integer. If non-zero, the parse will - * continue. If zero, the parse will be canceled and - * yajl_status_client_canceled will be returned from the parse. - * - * Note about handling of numbers: - * yajl will only convert numbers that can be represented in a double - * or a long int. All other numbers will be passed to the client - * in string form using the yajl_number callback. Furthermore, if - * yajl_number is not NULL, it will always be used to return numbers, - * that is yajl_integer and yajl_double will be ignored. If - * yajl_number is NULL but one of yajl_integer or yajl_double are - * defined, parsing of a number larger than is representable - * in a double or long int will result in a parse error. - */ - typedef struct { - int (* yajl_null)(void * ctx); - int (* yajl_boolean)(void * ctx, int boolVal); - int (* yajl_integer)(void * ctx, long integerVal); - int (* yajl_double)(void * ctx, double doubleVal); - /** A callback which passes the string representation of the number - * back to the client. Will be used for all numbers when present */ - int (* yajl_number)(void * ctx, const char * numberVal, - unsigned int numberLen); - - /** strings are returned as pointers into the JSON text when, - * possible, as a result, they are _not_ null padded */ - int (* yajl_string)(void * ctx, const unsigned char * stringVal, - unsigned int stringLen); - int (* yajl_c_comment)(void * ctx, const unsigned char * stringVal, - unsigned int stringLen); - - int (* yajl_cpp_comment)(void * ctx, const unsigned char * stringVal, - unsigned int stringLen); - - int (* yajl_start_map)(void * ctx); - int (* yajl_map_key)(void * ctx, const unsigned char * key, - unsigned int stringLen); - int (* yajl_end_map)(void * ctx); - - int (* yajl_start_array)(void * ctx); - int (* yajl_end_array)(void * ctx); - } yajl_callbacks; - - /** configuration structure for the generator */ - typedef struct { - /** if nonzero, javascript style comments will be allowed in - * the json input, both slash star and slash slash */ - unsigned int allowComments; - /** if nonzero, invalid UTF8 strings will cause a parse - * error */ - unsigned int checkUTF8; - } yajl_parser_config; - - /** allocate a parser handle - * \param callbacks a yajl callbacks structure specifying the - * functions to call when different JSON entities - * are encountered in the input text. May be NULL, - * which is only useful for validation. - * \param config configuration parameters for the parse. - * \param ctx a context pointer that will be passed to callbacks. - */ - yajl_handle YAJL_API yajl_alloc(const yajl_callbacks * callbacks, - const yajl_parser_config * config, - const yajl_alloc_funcs * allocFuncs, - void * ctx); - - /** free a parser handle */ - void YAJL_API yajl_free(yajl_handle handle); - - /** Parse some json! - * \param hand - a handle to the json parser allocated with yajl_alloc - * \param jsonText - a pointer to the UTF8 json text to be parsed - * \param jsonTextLength - the length, in bytes, of input text - */ - yajl_status YAJL_API yajl_parse(yajl_handle hand, - const unsigned char * jsonText, - unsigned int jsonTextLength); - - /** Parse any remaining buffered json. - * Since yajl is a stream-based parser, without an explicit end of - * input, yajl sometimes can't decide if content at the end of the - * stream is valid or not. For example, if "1" has been fed in, - * yajl can't know whether another digit is next or some character - * that would terminate the integer token. - * - * \param hand - a handle to the json parser allocated with yajl_alloc - */ - yajl_status yajl_parse_complete(yajl_handle hand); - - /** get an error string describing the state of the - * parse. - * - * If verbose is non-zero, the message will include the JSON - * text where the error occured, along with an arrow pointing to - * the specific char. - * - * A dynamically allocated string will be returned which should - * be freed with yajl_free_error - */ - unsigned char * YAJL_API yajl_get_error(yajl_handle hand, int verbose, - const unsigned char * jsonText, - unsigned int jsonTextLength); - - /** free an error returned from yajl_get_error */ - void YAJL_API yajl_free_error(yajl_handle hand, unsigned char * str); - -#ifdef __cplusplus -} -#endif - -#endif diff --git a/jcnf/yajl/yajl_parser.c b/jcnf/yajl/yajl_parser.c deleted file mode 100644 index 3d0f07f..0000000 --- a/jcnf/yajl/yajl_parser.c +++ /dev/null @@ -1,505 +0,0 @@ -/* - * Copyright 2007-2009, Lloyd Hilaiel. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are - * met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * - * 3. Neither the name of Lloyd Hilaiel nor the names of its - * contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR - * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED - * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE - * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, - * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES - * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR - * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGE. - */ - -#include "yajl_lex.h" -#include "yajl_parser.h" -#include "yajl_encode.h" -#include "yajl_bytestack.h" - -#include -#include -#include -#include -#include -#include -#include -#include - -unsigned char * -yajl_render_error_string(yajl_handle hand, const unsigned char * jsonText, - unsigned int jsonTextLen, int verbose) -{ - unsigned int offset = hand->errorOffset; - unsigned char * str; - const char * errorType = NULL; - const char * errorText = NULL; - char text[72]; - const char * arrow = " (right here) ------^\n"; - - if (yajl_bs_current(hand->stateStack) == yajl_state_parse_error) { - errorType = "parse"; - errorText = hand->parseError; - } else if (yajl_bs_current(hand->stateStack) == yajl_state_lexical_error) { - errorType = "lexical"; - errorText = yajl_lex_error_to_string(yajl_lex_get_error(hand->lexer)); - } else { - errorType = "unknown"; - } - - { - unsigned int memneeded = 0; - memneeded += strlen(errorType); - memneeded += strlen(" error"); - if (errorText != NULL) { - memneeded += strlen(": "); - memneeded += strlen(errorText); - } - str = (unsigned char *) YA_MALLOC(&(hand->alloc), memneeded + 2); - str[0] = 0; - strcat((char *) str, errorType); - strcat((char *) str, " error"); - if (errorText != NULL) { - strcat((char *) str, ": "); - strcat((char *) str, errorText); - } - strcat((char *) str, "\n"); - } - - /* now we append as many spaces as needed to make sure the error - * falls at char 41, if verbose was specified */ - if (verbose) { - unsigned int start, end, i; - unsigned int spacesNeeded; - - spacesNeeded = (offset < 30 ? 40 - offset : 10); - start = (offset >= 30 ? offset - 30 : 0); - end = (offset + 30 > jsonTextLen ? jsonTextLen : offset + 30); - - for (i=0;ialloc), (strlen((char *) str) + - strlen((char *) text) + - strlen(arrow) + 1)); - newStr[0] = 0; - strcat((char *) newStr, (char *) str); - strcat((char *) newStr, text); - strcat((char *) newStr, arrow); - YA_FREE(&(hand->alloc), str); - str = (unsigned char *) newStr; - } - } - return str; -} - -/* check for client cancelation */ -#define _CC_CHK(x) \ - if (!(x)) { \ - yajl_bs_set(hand->stateStack, yajl_state_parse_error); \ - hand->parseError = \ - "client cancelled parse via callback return value"; \ - return yajl_status_client_canceled; \ - } - - -yajl_status -yajl_do_parse(yajl_handle hand, unsigned int * offset, - const unsigned char * jsonText, unsigned int jsonTextLen) -{ - yajl_tok tok; - const unsigned char * buf; - unsigned int bufLen; - - around_again: - switch (yajl_bs_current(hand->stateStack)) { - case yajl_state_parse_complete: - return yajl_status_ok; - case yajl_state_lexical_error: - case yajl_state_parse_error: - hand->errorOffset = *offset; - return yajl_status_error; - case yajl_state_start: - case yajl_state_map_need_val: - case yajl_state_array_need_val: - case yajl_state_array_start: { - /* for arrays and maps, we advance the state for this - * depth, then push the state of the next depth. - * If an error occurs during the parsing of the nesting - * enitity, the state at this level will not matter. - * a state that needs pushing will be anything other - * than state_start */ - yajl_state stateToPush = yajl_state_start; - - tok = yajl_lex_lex(hand->lexer, jsonText, jsonTextLen, - offset, &buf, &bufLen); - - switch (tok) { - case yajl_tok_eof: - return yajl_status_insufficient_data; - case yajl_tok_error: - yajl_bs_set(hand->stateStack, yajl_state_lexical_error); - goto around_again; - case yajl_tok_c_comment: - if (hand->callbacks && hand->callbacks->yajl_c_comment) { - _CC_CHK(hand->callbacks->yajl_c_comment(hand->ctx, - buf, bufLen)); - } - goto around_again; - case yajl_tok_cpp_comment: - if (hand->callbacks && hand->callbacks->yajl_cpp_comment) { - _CC_CHK(hand->callbacks->yajl_cpp_comment(hand->ctx, - buf, bufLen)); - } - goto around_again; - case yajl_tok_string: - if (hand->callbacks && hand->callbacks->yajl_string) { - _CC_CHK(hand->callbacks->yajl_string(hand->ctx, - buf, bufLen)); - } - break; - case yajl_tok_string_with_escapes: - if (hand->callbacks && hand->callbacks->yajl_string) { - yajl_buf_clear(hand->decodeBuf); - yajl_string_decode(hand->decodeBuf, buf, bufLen); - _CC_CHK(hand->callbacks->yajl_string( - hand->ctx, yajl_buf_data(hand->decodeBuf), - yajl_buf_len(hand->decodeBuf))); - } - break; - case yajl_tok_bool: - if (hand->callbacks && hand->callbacks->yajl_boolean) { - _CC_CHK(hand->callbacks->yajl_boolean(hand->ctx, - *buf == 't')); - } - break; - case yajl_tok_null: - if (hand->callbacks && hand->callbacks->yajl_null) { - _CC_CHK(hand->callbacks->yajl_null(hand->ctx)); - } - break; - case yajl_tok_left_bracket: - if (hand->callbacks && hand->callbacks->yajl_start_map) { - _CC_CHK(hand->callbacks->yajl_start_map(hand->ctx)); - } - stateToPush = yajl_state_map_start; - break; - case yajl_tok_left_brace: - if (hand->callbacks && hand->callbacks->yajl_start_array) { - _CC_CHK(hand->callbacks->yajl_start_array(hand->ctx)); - } - stateToPush = yajl_state_array_start; - break; - case yajl_tok_integer: - /* - * note. strtol does not respect the length of - * the lexical token. in a corner case where the - * lexed number is a integer with a trailing zero, - * immediately followed by the end of buffer, - * sscanf could run off into oblivion and cause a - * crash. for this reason we copy the integer - * (and doubles), into our parse buffer (the same - * one used for unescaping strings), before - * calling strtol. yajl_buf ensures null padding, - * so we're safe. - */ - if (hand->callbacks) { - if (hand->callbacks->yajl_number) { - _CC_CHK(hand->callbacks->yajl_number( - hand->ctx,(const char *) buf, bufLen)); - } else if (hand->callbacks->yajl_integer) { - long int i = 0; - yajl_buf_clear(hand->decodeBuf); - yajl_buf_append(hand->decodeBuf, buf, bufLen); - buf = yajl_buf_data(hand->decodeBuf); - i = strtol((const char *) buf, NULL, 10); - if ((i == LONG_MIN || i == LONG_MAX) && - errno == ERANGE) - { - yajl_bs_set(hand->stateStack, - yajl_state_parse_error); - hand->parseError = "integer overflow" ; - /* try to restore error offset */ - if (*offset >= bufLen) *offset -= bufLen; - else *offset = 0; - goto around_again; - } - _CC_CHK(hand->callbacks->yajl_integer(hand->ctx, - i)); - } - } - break; - case yajl_tok_double: - if (hand->callbacks) { - if (hand->callbacks->yajl_number) { - _CC_CHK(hand->callbacks->yajl_number( - hand->ctx, (const char *) buf, bufLen)); - } else if (hand->callbacks->yajl_double) { - double d = 0.0; - yajl_buf_clear(hand->decodeBuf); - yajl_buf_append(hand->decodeBuf, buf, bufLen); - buf = yajl_buf_data(hand->decodeBuf); - d = strtod((char *) buf, NULL); - if ((d == HUGE_VAL || d == -HUGE_VAL) && - errno == ERANGE) - { - yajl_bs_set(hand->stateStack, - yajl_state_parse_error); - hand->parseError = "numeric (floating point) " - "overflow"; - /* try to restore error offset */ - if (*offset >= bufLen) *offset -= bufLen; - else *offset = 0; - goto around_again; - } - _CC_CHK(hand->callbacks->yajl_double(hand->ctx, - d)); - } - } - break; - case yajl_tok_right_brace: { - if (yajl_bs_current(hand->stateStack) == - yajl_state_array_start) - { - if (hand->callbacks && - hand->callbacks->yajl_end_array) - { - _CC_CHK(hand->callbacks->yajl_end_array(hand->ctx)); - } - yajl_bs_pop(hand->stateStack); - goto around_again; - } - /* intentional fall-through */ - } - case yajl_tok_colon: - case yajl_tok_comma: - case yajl_tok_right_bracket: - yajl_bs_set(hand->stateStack, yajl_state_parse_error); - hand->parseError = - "unallowed token at this point in JSON text"; - goto around_again; - default: - yajl_bs_set(hand->stateStack, yajl_state_parse_error); - hand->parseError = "invalid token, internal error"; - goto around_again; - } - /* got a value. transition depends on the state we're in. */ - { - yajl_state s = yajl_bs_current(hand->stateStack); - if (s == yajl_state_start) { - yajl_bs_set(hand->stateStack, yajl_state_parse_complete); - } else if (s == yajl_state_map_need_val) { - yajl_bs_set(hand->stateStack, yajl_state_map_got_val); - } else { - yajl_bs_set(hand->stateStack, yajl_state_array_got_val); - } - } - if (stateToPush != yajl_state_start) { - yajl_bs_push(hand->stateStack, stateToPush); - } - - goto around_again; - } - case yajl_state_map_start: - case yajl_state_map_need_key: { - /* only difference between these two states is that in - * start '}' is valid, whereas in need_key, we've parsed - * a comma, and a string key _must_ follow */ - tok = yajl_lex_lex(hand->lexer, jsonText, jsonTextLen, - offset, &buf, &bufLen); - switch (tok) { - case yajl_tok_eof: - return yajl_status_insufficient_data; - case yajl_tok_error: - yajl_bs_set(hand->stateStack, yajl_state_lexical_error); - goto around_again; - case yajl_tok_string_with_escapes: - if (hand->callbacks && hand->callbacks->yajl_map_key) { - yajl_buf_clear(hand->decodeBuf); - yajl_string_decode(hand->decodeBuf, buf, bufLen); - buf = yajl_buf_data(hand->decodeBuf); - bufLen = yajl_buf_len(hand->decodeBuf); - } - /* intentional fall-through */ - case yajl_tok_string: - if (hand->callbacks && hand->callbacks->yajl_map_key) { - _CC_CHK(hand->callbacks->yajl_map_key(hand->ctx, buf, - bufLen)); - } - yajl_bs_set(hand->stateStack, yajl_state_map_sep); - goto around_again; - case yajl_tok_c_comment: - if (hand->callbacks && hand->callbacks->yajl_c_comment) { - _CC_CHK(hand->callbacks->yajl_c_comment(hand->ctx, - buf, bufLen)); - } - goto around_again; - case yajl_tok_cpp_comment: - if (hand->callbacks && hand->callbacks->yajl_cpp_comment) { - _CC_CHK(hand->callbacks->yajl_cpp_comment(hand->ctx, - buf, bufLen)); - } - goto around_again; - case yajl_tok_right_bracket: - if (yajl_bs_current(hand->stateStack) == - yajl_state_map_start) - { - if (hand->callbacks && hand->callbacks->yajl_end_map) { - _CC_CHK(hand->callbacks->yajl_end_map(hand->ctx)); - } - yajl_bs_pop(hand->stateStack); - goto around_again; - } - default: - yajl_bs_set(hand->stateStack, yajl_state_parse_error); - hand->parseError = - "invalid object key (must be a string)"; - goto around_again; - } - } - case yajl_state_map_sep: { - tok = yajl_lex_lex(hand->lexer, jsonText, jsonTextLen, - offset, &buf, &bufLen); - switch (tok) { - case yajl_tok_c_comment: - if (hand->callbacks && hand->callbacks->yajl_c_comment) { - _CC_CHK(hand->callbacks->yajl_c_comment(hand->ctx, - buf, bufLen)); - } - goto around_again; - case yajl_tok_cpp_comment: - if (hand->callbacks && hand->callbacks->yajl_cpp_comment) { - _CC_CHK(hand->callbacks->yajl_cpp_comment(hand->ctx, - buf, bufLen)); - } - goto around_again; - case yajl_tok_colon: - yajl_bs_set(hand->stateStack, yajl_state_map_need_val); - goto around_again; - case yajl_tok_eof: - return yajl_status_insufficient_data; - case yajl_tok_error: - yajl_bs_set(hand->stateStack, yajl_state_lexical_error); - goto around_again; - default: - yajl_bs_set(hand->stateStack, yajl_state_parse_error); - hand->parseError = "object key and value must " - "be separated by a colon (':')"; - goto around_again; - } - } - case yajl_state_map_got_val: { - tok = yajl_lex_lex(hand->lexer, jsonText, jsonTextLen, - offset, &buf, &bufLen); - switch (tok) { - case yajl_tok_c_comment: - if (hand->callbacks && hand->callbacks->yajl_c_comment) { - _CC_CHK(hand->callbacks->yajl_c_comment(hand->ctx, - buf, bufLen)); - } - goto around_again; - case yajl_tok_cpp_comment: - if (hand->callbacks && hand->callbacks->yajl_cpp_comment) { - _CC_CHK(hand->callbacks->yajl_cpp_comment(hand->ctx, - buf, bufLen)); - } - goto around_again; - case yajl_tok_right_bracket: - if (hand->callbacks && hand->callbacks->yajl_end_map) { - _CC_CHK(hand->callbacks->yajl_end_map(hand->ctx)); - } - yajl_bs_pop(hand->stateStack); - goto around_again; - case yajl_tok_comma: - yajl_bs_set(hand->stateStack, yajl_state_map_need_key); - goto around_again; - case yajl_tok_eof: - return yajl_status_insufficient_data; - case yajl_tok_error: - yajl_bs_set(hand->stateStack, yajl_state_lexical_error); - goto around_again; - default: - yajl_bs_set(hand->stateStack, yajl_state_parse_error); - hand->parseError = "after key and value, inside map, " - "I expect ',' or '}'"; - /* try to restore error offset */ - if (*offset >= bufLen) *offset -= bufLen; - else *offset = 0; - goto around_again; - } - } - case yajl_state_array_got_val: { - tok = yajl_lex_lex(hand->lexer, jsonText, jsonTextLen, - offset, &buf, &bufLen); - switch (tok) { - case yajl_tok_c_comment: - if (hand->callbacks && hand->callbacks->yajl_c_comment) { - _CC_CHK(hand->callbacks->yajl_c_comment(hand->ctx, - buf, bufLen)); - } - goto around_again; - case yajl_tok_cpp_comment: - if (hand->callbacks && hand->callbacks->yajl_cpp_comment) { - _CC_CHK(hand->callbacks->yajl_cpp_comment(hand->ctx, - buf, bufLen)); - } - goto around_again; - case yajl_tok_right_brace: - if (hand->callbacks && hand->callbacks->yajl_end_array) { - _CC_CHK(hand->callbacks->yajl_end_array(hand->ctx)); - } - yajl_bs_pop(hand->stateStack); - goto around_again; - case yajl_tok_comma: - yajl_bs_set(hand->stateStack, yajl_state_array_need_val); - goto around_again; - case yajl_tok_eof: - return yajl_status_insufficient_data; - case yajl_tok_error: - yajl_bs_set(hand->stateStack, yajl_state_lexical_error); - goto around_again; - default: - yajl_bs_set(hand->stateStack, yajl_state_parse_error); - hand->parseError = - "after array element, I expect ',' or ']'"; - goto around_again; - } - } - } - - abort(); - return yajl_status_error; -} - diff --git a/jcnf/yajl/yajl_parser.h b/jcnf/yajl/yajl_parser.h deleted file mode 100644 index f8bc8ee..0000000 --- a/jcnf/yajl/yajl_parser.h +++ /dev/null @@ -1,79 +0,0 @@ -/* - * Copyright 2007-2009, Lloyd Hilaiel. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are - * met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * - * 3. Neither the name of Lloyd Hilaiel nor the names of its - * contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR - * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED - * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE - * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, - * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES - * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR - * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGE. - */ - -#ifndef __YAJL_PARSER_H__ -#define __YAJL_PARSER_H__ - -#include "yajl_parse.h" -#include "yajl_bytestack.h" -#include "yajl_buf.h" - - -typedef enum { - yajl_state_start = 0, - yajl_state_parse_complete, - yajl_state_parse_error, - yajl_state_lexical_error, - yajl_state_map_start, - yajl_state_map_sep, - yajl_state_map_need_val, - yajl_state_map_got_val, - yajl_state_map_need_key, - yajl_state_array_start, - yajl_state_array_got_val, - yajl_state_array_need_val -} yajl_state; - -struct yajl_handle_t { - const yajl_callbacks * callbacks; - void * ctx; - yajl_lexer lexer; - const char * parseError; - unsigned int errorOffset; - /* temporary storage for decoded strings */ - yajl_buf decodeBuf; - /* a stack of states. access with yajl_state_XXX routines */ - yajl_bytestack stateStack; - /* memory allocation routines */ - yajl_alloc_funcs alloc; -}; - -yajl_status -yajl_do_parse(yajl_handle handle, unsigned int * offset, - const unsigned char * jsonText, unsigned int jsonTextLen); - -unsigned char * -yajl_render_error_string(yajl_handle hand, const unsigned char * jsonText, - unsigned int jsonTextLen, int verbose); - - -#endif diff --git a/jcnf/yajl/yajl_test.c b/jcnf/yajl/yajl_test.c deleted file mode 100644 index de43570..0000000 --- a/jcnf/yajl/yajl_test.c +++ /dev/null @@ -1,293 +0,0 @@ -/* - * Copyright 2007-2009, Lloyd Hilaiel. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are - * met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * - * 3. Neither the name of Lloyd Hilaiel nor the names of its - * contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR - * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED - * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE - * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, - * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES - * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR - * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGE. - */ - -#include "yajl_parse.h" -#include "yajl_gen.h" - -#include -#include -#include - -#include - -/* memory debugging routines */ -typedef struct -{ - unsigned int numFrees; - unsigned int numMallocs; - /* XXX: we really need a hash table here with per-allocation - * information */ -} yajlTestMemoryContext; - -/* cast void * into context */ -#define TEST_CTX(vptr) ((yajlTestMemoryContext *) (vptr)) - -static void yajlTestFree(void * ctx, void * ptr) -{ - assert(ptr != NULL); - TEST_CTX(ctx)->numFrees++; - free(ptr); -} - -static void * yajlTestMalloc(void * ctx, unsigned int sz) -{ - assert(sz != 0); - TEST_CTX(ctx)->numMallocs++; - return malloc(sz); -} - -static void * yajlTestRealloc(void * ctx, void * ptr, unsigned int sz) -{ - if (ptr == NULL) { - assert(sz != 0); - TEST_CTX(ctx)->numMallocs++; - } else if (sz == 0) { - TEST_CTX(ctx)->numFrees++; - } - - return realloc(ptr, sz); -} - - -/* begin parsing callback routines */ -#define BUF_SIZE 2048 - -static int test_yajl_null(void *ctx) -{ - printf("null\n"); - return 1; -} - -static int test_yajl_boolean(void * ctx, int boolVal) -{ - printf("bool: %s\n", boolVal ? "true" : "false"); - return 1; -} - -static int test_yajl_integer(void *ctx, long integerVal) -{ - printf("integer: %ld\n", integerVal); - return 1; -} - -static int test_yajl_double(void *ctx, double doubleVal) -{ - printf("double: %g\n", doubleVal); - return 1; -} - -static int test_yajl_string(void *ctx, const unsigned char * stringVal, - unsigned int stringLen) -{ - printf("string: '"); - fwrite(stringVal, 1, stringLen, stdout); - printf("'\n"); - return 1; -} - -static int test_yajl_map_key(void *ctx, const unsigned char * stringVal, - unsigned int stringLen) -{ - char * str = (char *) malloc(stringLen + 1); - str[stringLen] = 0; - memcpy(str, stringVal, stringLen); - printf("key: '%s'\n", str); - free(str); - return 1; -} - -static int test_yajl_start_map(void *ctx) -{ - printf("map open '{'\n"); - return 1; -} - - -static int test_yajl_end_map(void *ctx) -{ - printf("map close '}'\n"); - return 1; -} - -static int test_yajl_start_array(void *ctx) -{ - printf("array open '['\n"); - return 1; -} - -static int test_yajl_end_array(void *ctx) -{ - printf("array close ']'\n"); - return 1; -} - -static yajl_callbacks callbacks = { - test_yajl_null, - test_yajl_boolean, - test_yajl_integer, - test_yajl_double, - NULL, - test_yajl_string, - NULL, - NULL, - test_yajl_start_map, - test_yajl_map_key, - test_yajl_end_map, - test_yajl_start_array, - test_yajl_end_array -}; - -static void usage(const char * progname) -{ - fprintf(stderr, - "usage: %s [options] \n" - " -c allow comments\n" - " -b set the read buffer size\n", - progname); - exit(1); -} - -int -main(int argc, char ** argv) -{ - yajl_handle hand; - const char * fileName; - static unsigned char * fileData = NULL; - unsigned int bufSize = BUF_SIZE; - yajl_status stat; - size_t rd; - yajl_parser_config cfg = { 0, 1 }; - int i, j, done; - - /* memory allocation debugging: allocate a structure which collects - * statistics */ - yajlTestMemoryContext memCtx = { 0,0 }; - - /* memory allocation debugging: allocate a structure which holds - * allocation routines */ - yajl_alloc_funcs allocFuncs = { - yajlTestMalloc, - yajlTestRealloc, - yajlTestFree, - (void *) NULL - }; - - allocFuncs.ctx = (void *) &memCtx; - - /* check arguments. We expect exactly one! */ - for (i=1;i= argc) usage(argv[0]); - - /* validate integer */ - for (j=0;j<(int)strlen(argv[i]);j++) { - if (argv[i][j] <= '9' && argv[i][j] >= '0') continue; - fprintf(stderr, "-b requires an integer argument. '%s' " - "is invalid\n", argv[i]); - usage(argv[0]); - } - - bufSize = atoi(argv[i]); - if (!bufSize) { - fprintf(stderr, "%d is an invalid buffer size\n", - bufSize); - } - } else { - fprintf(stderr, "invalid command line option: '%s'\n", - argv[i]); - usage(argv[0]); - } - } - - fileData = (unsigned char *) malloc(bufSize); - - if (fileData == NULL) { - fprintf(stderr, - "failed to allocate read buffer of %u bytes, exiting.", - bufSize); - exit(2); - } - - fileName = argv[argc-1]; - - /* ok. open file. let's read and parse */ - hand = yajl_alloc(&callbacks, &cfg, &allocFuncs, NULL); - - done = 0; - while (!done) { - rd = fread((void *) fileData, 1, bufSize, stdin); - - if (rd == 0) { - if (!feof(stdin)) { - fprintf(stderr, "error reading from '%s'\n", fileName); - break; - } - done = 1; - } - - if (done) - /* parse any remaining buffered data */ - stat = yajl_parse_complete(hand); - else - /* read file data, pass to parser */ - stat = yajl_parse(hand, fileData, rd); - - if (stat != yajl_status_insufficient_data && - stat != yajl_status_ok) - { - unsigned char * str = yajl_get_error(hand, 0, fileData, rd); - fflush(stdout); - fprintf(stderr, "%s", (char *) str); - yajl_free_error(hand, str); - break; - } - } - - yajl_free(hand); - free(fileData); - - /* finally, print out some memory statistics */ - -/* (lth) only print leaks here, as allocations and frees may vary depending - * on read buffer size, causing false failures. - * - * printf("allocations:\t%u\n", memCtx.numMallocs); - * printf("frees:\t\t%u\n", memCtx.numFrees); -*/ - fflush(stderr); - fflush(stdout); - printf("memory leaks:\t%u\n", memCtx.numMallocs - memCtx.numFrees); - - return 0; -} diff --git a/jpeg/Jamfile b/jpeg/Jamfile new file mode 100644 index 0000000..5f9a91c --- /dev/null +++ b/jpeg/Jamfile @@ -0,0 +1,26 @@ + +#PREF_CCFLAGS = $(CCOPTFLAG) ; # Turn optimisation on +PREF_CCFLAGS = $(CCDEBUGFLAG) ; # Debugging flags +PREF_LINKFLAGS = $(LINKDEBUGFLAG) ; + +# Run configure if it seems to be needed +if $(UNIX) { + GenFileNND jconfig.h : "(cd $(SUBDIR); chmod +x configure ; ./configure)" : configure ; +} + +# else copy them +if $(NT) { + File jconfig.h : jconfig.vc ; +} + +# jpg library +LIBSRCS = jcapimin.c jcapistd.c jdapimin.c jdapistd.c jcomapi.c jcparam.c jctrans.c + jdtrans.c jcinit.c jcmaster.c jcmainct.c jcprepct.c jccoefct.c jccolor.c + jcsample.c jcdctmgr.c jfdctint.c jfdctfst.c jfdctflt.c jchuff.c jcarith.c + jcmarker.c jdatadst.c jdmaster.c jdinput.c jdmainct.c jdcoefct.c jdpostct.c + jdmarker.c jdhuff.c jdarith.c jddctmgr.c jidctint.c jidctfst.c jidctflt.c + jdsample.c jdcolor.c jdmerge.c jquant1.c jquant2.c jdatasrc.c jaricom.c + jerror.c jmemmgr.c jutils.c jmemmgr.c jmemnobs.c ; + +Library libjpeg : $(LIBSRCS) ; + diff --git a/jpeg/Makefile.am b/jpeg/Makefile.am new file mode 100644 index 0000000..42cff57 --- /dev/null +++ b/jpeg/Makefile.am @@ -0,0 +1,134 @@ +## Process this file with automake to produce Makefile.in +# +# Automake Makefile for the JPEG library +# +# This file is written by Bob Friesenhahn, Guido Vollbeding +# + +# Sources to build library +LIBSOURCES = jaricom.c jcapimin.c jcapistd.c jcarith.c jccoefct.c jccolor.c \ + jcdctmgr.c jchuff.c jcinit.c jcmainct.c jcmarker.c jcmaster.c \ + jcomapi.c jcparam.c jcprepct.c jcsample.c jctrans.c jdapimin.c \ + jdapistd.c jdarith.c jdatadst.c jdatasrc.c jdcoefct.c jdcolor.c \ + jddctmgr.c jdhuff.c jdinput.c jdmainct.c jdmarker.c jdmaster.c \ + jdmerge.c jdpostct.c jdsample.c jdtrans.c jerror.c jfdctflt.c \ + jfdctfst.c jfdctint.c jidctflt.c jidctfst.c jidctint.c jquant1.c \ + jquant2.c jutils.c jmemmgr.c @MEMORYMGR@.c + +# System dependent sources +SYSDEPSOURCES = jmemansi.c jmemname.c jmemnobs.c jmemdos.c jmemmac.c + +# Headers which are installed to support the library +INSTINCLUDES = jerror.h jmorecfg.h jpeglib.h + +# Headers which are not installed +OTHERINCLUDES = cderror.h cdjpeg.h jdct.h jinclude.h jmemsys.h jpegint.h \ + jversion.h transupp.h + +# Manual pages (Automake uses 'MANS' for itself) +DISTMANS= cjpeg.1 djpeg.1 jpegtran.1 rdjpgcom.1 wrjpgcom.1 + +# Other documentation files +DOCS= README install.txt usage.txt wizard.txt example.c libjpeg.txt \ + structure.txt coderules.txt filelist.txt change.log + +# Makefiles for various systems +MKFILES= configure Makefile.in makefile.ansi makefile.unix makefile.bcc \ + makefile.mc6 makefile.dj makefile.wat makefile.vc makejdsw.vc6 \ + makeadsw.vc6 makejdep.vc6 makejdsp.vc6 makejmak.vc6 makecdep.vc6 \ + makecdsp.vc6 makecmak.vc6 makeddep.vc6 makeddsp.vc6 makedmak.vc6 \ + maketdep.vc6 maketdsp.vc6 maketmak.vc6 makerdep.vc6 makerdsp.vc6 \ + makermak.vc6 makewdep.vc6 makewdsp.vc6 makewmak.vc6 makejsln.v10 \ + makeasln.v10 makejvcx.v10 makejfil.v10 makecvcx.v10 makecfil.v10 \ + makedvcx.v10 makedfil.v10 maketvcx.v10 maketfil.v10 makervcx.v10 \ + makerfil.v10 makewvcx.v10 makewfil.v10 makeproj.mac makcjpeg.st \ + makdjpeg.st makljpeg.st maktjpeg.st makefile.manx makefile.sas \ + makefile.mms makefile.vms makvms.opt + +# Configuration files +CONFIGFILES= jconfig.cfg jconfig.bcc jconfig.mc6 jconfig.dj jconfig.wat \ + jconfig.vc jconfig.mac jconfig.st jconfig.manx jconfig.sas \ + jconfig.vms + +# Support scripts for configure +CONFIGUREFILES= config.guess config.sub install-sh ltmain.sh depcomp missing + +# Miscellaneous support files +OTHERFILES= jconfig.txt ckconfig.c ansi2knr.c ansi2knr.1 jmemdosa.asm \ + libjpeg.map + +# Test support files +TESTFILES= testorig.jpg testimg.ppm testimg.bmp testimg.jpg testprog.jpg \ + testimgp.jpg + +# libtool libraries to build +lib_LTLIBRARIES = libjpeg.la + +# Library sources for libjpeg.la +libjpeg_la_SOURCES = $(LIBSOURCES) + +# LDFLAGS for libjpeg.la +libjpeg_la_LDFLAGS = -no-undefined \ + -version-info $(JPEG_LIB_VERSION) + +if HAVE_LD_VERSION_SCRIPT + libjpeg_la_LDFLAGS += -Wl,--version-script=$(srcdir)/libjpeg.map +endif + +# Executables to build +bin_PROGRAMS = cjpeg djpeg jpegtran rdjpgcom wrjpgcom + +# Executable sources & libs +cjpeg_SOURCES = cjpeg.c rdppm.c rdgif.c rdtarga.c rdrle.c rdbmp.c \ + rdswitch.c cdjpeg.c +cjpeg_LDADD = libjpeg.la +djpeg_SOURCES = djpeg.c wrppm.c wrgif.c wrtarga.c wrrle.c wrbmp.c \ + rdcolmap.c cdjpeg.c +djpeg_LDADD = libjpeg.la +jpegtran_SOURCES = jpegtran.c rdswitch.c cdjpeg.c transupp.c +jpegtran_LDADD = libjpeg.la +rdjpgcom_SOURCES = rdjpgcom.c +wrjpgcom_SOURCES = wrjpgcom.c + +# Manual pages to install +man_MANS = $(DISTMANS) + +# Headers to install +include_HEADERS = $(INSTINCLUDES) + +# Other distributed headers +noinst_HEADERS = $(OTHERINCLUDES) + +# Other distributed files +EXTRA_DIST = $(DOCS) $(DISTMANS) $(MKFILES) $(CONFIGFILES) $(SYSDEPSOURCES) \ + $(OTHERFILES) $(TESTFILES) + +# Files to be cleaned +CLEANFILES = testout.ppm testout.bmp testout.jpg testoutp.ppm testoutp.jpg \ + testoutt.jpg + +# Install jconfig.h +install-data-local: + $(mkinstalldirs) $(DESTDIR)$(includedir) + $(INSTALL_HEADER) jconfig.h $(DESTDIR)$(includedir)/jconfig.h + +# Uninstall jconfig.h +uninstall-local: + rm -f $(DESTDIR)$(includedir)/jconfig.h + +# Run tests +test: check-local +check-local: + rm -f testout* + ./djpeg -dct int -ppm -outfile testout.ppm $(srcdir)/testorig.jpg + ./djpeg -dct int -bmp -colors 256 -outfile testout.bmp $(srcdir)/testorig.jpg + ./cjpeg -dct int -outfile testout.jpg $(srcdir)/testimg.ppm + ./djpeg -dct int -ppm -outfile testoutp.ppm $(srcdir)/testprog.jpg + ./cjpeg -dct int -progressive -opt -outfile testoutp.jpg $(srcdir)/testimg.ppm + ./jpegtran -outfile testoutt.jpg $(srcdir)/testprog.jpg + cmp $(srcdir)/testimg.ppm testout.ppm + cmp $(srcdir)/testimg.bmp testout.bmp + cmp $(srcdir)/testimg.jpg testout.jpg + cmp $(srcdir)/testimg.ppm testoutp.ppm + cmp $(srcdir)/testimgp.jpg testoutp.jpg + cmp $(srcdir)/testorig.jpg testoutt.jpg diff --git a/jpeg/Makefile.in b/jpeg/Makefile.in new file mode 100644 index 0000000..5bda1fb --- /dev/null +++ b/jpeg/Makefile.in @@ -0,0 +1,1094 @@ +# Makefile.in generated by automake 1.11.2 from Makefile.am. 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+exec_prefix = @exec_prefix@ +host = @host@ +host_alias = @host_alias@ +host_cpu = @host_cpu@ +host_os = @host_os@ +host_vendor = @host_vendor@ +htmldir = @htmldir@ +includedir = @includedir@ +infodir = @infodir@ +install_sh = @install_sh@ +libdir = @libdir@ +libexecdir = @libexecdir@ +localedir = @localedir@ +localstatedir = @localstatedir@ +mandir = @mandir@ +mkdir_p = @mkdir_p@ +oldincludedir = @oldincludedir@ +pdfdir = @pdfdir@ +prefix = @prefix@ +program_transform_name = @program_transform_name@ +psdir = @psdir@ +sbindir = @sbindir@ +sharedstatedir = @sharedstatedir@ +srcdir = @srcdir@ +sysconfdir = @sysconfdir@ +target = @target@ +target_alias = @target_alias@ +target_cpu = @target_cpu@ +target_os = @target_os@ +target_vendor = @target_vendor@ +top_build_prefix = @top_build_prefix@ +top_builddir = @top_builddir@ +top_srcdir = @top_srcdir@ + +# Sources to build library +LIBSOURCES = jaricom.c jcapimin.c jcapistd.c jcarith.c jccoefct.c jccolor.c \ + jcdctmgr.c jchuff.c jcinit.c jcmainct.c jcmarker.c jcmaster.c \ + jcomapi.c jcparam.c jcprepct.c jcsample.c jctrans.c jdapimin.c \ + jdapistd.c jdarith.c jdatadst.c jdatasrc.c jdcoefct.c jdcolor.c \ + jddctmgr.c jdhuff.c jdinput.c jdmainct.c jdmarker.c jdmaster.c \ + jdmerge.c jdpostct.c jdsample.c jdtrans.c jerror.c jfdctflt.c \ + jfdctfst.c jfdctint.c jidctflt.c jidctfst.c jidctint.c jquant1.c \ + jquant2.c jutils.c jmemmgr.c @MEMORYMGR@.c + + +# System dependent sources +SYSDEPSOURCES = jmemansi.c jmemname.c jmemnobs.c jmemdos.c jmemmac.c + +# Headers which are installed to support the library +INSTINCLUDES = jerror.h jmorecfg.h jpeglib.h + +# Headers which are not installed +OTHERINCLUDES = cderror.h cdjpeg.h jdct.h jinclude.h jmemsys.h jpegint.h \ + jversion.h transupp.h + + +# Manual pages (Automake uses 'MANS' for itself) +DISTMANS = cjpeg.1 djpeg.1 jpegtran.1 rdjpgcom.1 wrjpgcom.1 + +# Other documentation files +DOCS = README install.txt usage.txt wizard.txt example.c libjpeg.txt \ + structure.txt coderules.txt filelist.txt change.log + + +# Makefiles for various systems +MKFILES = configure Makefile.in makefile.ansi makefile.unix makefile.bcc \ + makefile.mc6 makefile.dj makefile.wat makefile.vc makejdsw.vc6 \ + makeadsw.vc6 makejdep.vc6 makejdsp.vc6 makejmak.vc6 makecdep.vc6 \ + makecdsp.vc6 makecmak.vc6 makeddep.vc6 makeddsp.vc6 makedmak.vc6 \ + maketdep.vc6 maketdsp.vc6 maketmak.vc6 makerdep.vc6 makerdsp.vc6 \ + makermak.vc6 makewdep.vc6 makewdsp.vc6 makewmak.vc6 makejsln.v10 \ + makeasln.v10 makejvcx.v10 makejfil.v10 makecvcx.v10 makecfil.v10 \ + makedvcx.v10 makedfil.v10 maketvcx.v10 maketfil.v10 makervcx.v10 \ + makerfil.v10 makewvcx.v10 makewfil.v10 makeproj.mac makcjpeg.st \ + makdjpeg.st makljpeg.st maktjpeg.st makefile.manx makefile.sas \ + makefile.mms makefile.vms makvms.opt + + +# Configuration files +CONFIGFILES = jconfig.cfg jconfig.bcc jconfig.mc6 jconfig.dj jconfig.wat \ + jconfig.vc jconfig.mac jconfig.st jconfig.manx jconfig.sas \ + jconfig.vms + + +# Support scripts for configure +CONFIGUREFILES = config.guess config.sub install-sh ltmain.sh depcomp missing + +# Miscellaneous support files +OTHERFILES = jconfig.txt ckconfig.c ansi2knr.c ansi2knr.1 jmemdosa.asm \ + libjpeg.map + + +# Test support files +TESTFILES = testorig.jpg testimg.ppm testimg.bmp testimg.jpg testprog.jpg \ + testimgp.jpg + + +# libtool libraries to build +lib_LTLIBRARIES = libjpeg.la + +# Library sources for libjpeg.la +libjpeg_la_SOURCES = $(LIBSOURCES) + +# LDFLAGS for libjpeg.la +libjpeg_la_LDFLAGS = -no-undefined -version-info $(JPEG_LIB_VERSION) \ + $(am__append_1) + +# Executable sources & libs +cjpeg_SOURCES = cjpeg.c rdppm.c rdgif.c rdtarga.c rdrle.c rdbmp.c \ + rdswitch.c cdjpeg.c + +cjpeg_LDADD = libjpeg.la +djpeg_SOURCES = djpeg.c wrppm.c wrgif.c wrtarga.c wrrle.c wrbmp.c \ + rdcolmap.c cdjpeg.c + +djpeg_LDADD = libjpeg.la +jpegtran_SOURCES = jpegtran.c rdswitch.c cdjpeg.c transupp.c +jpegtran_LDADD = libjpeg.la +rdjpgcom_SOURCES = rdjpgcom.c +wrjpgcom_SOURCES = wrjpgcom.c + +# Manual pages to install +man_MANS = $(DISTMANS) + +# Headers to install +include_HEADERS = $(INSTINCLUDES) + +# Other distributed headers +noinst_HEADERS = $(OTHERINCLUDES) + +# Other distributed files +EXTRA_DIST = $(DOCS) $(DISTMANS) $(MKFILES) $(CONFIGFILES) $(SYSDEPSOURCES) \ + $(OTHERFILES) $(TESTFILES) + + +# Files to be cleaned +CLEANFILES = testout.ppm testout.bmp testout.jpg testoutp.ppm testoutp.jpg \ + testoutt.jpg + +all: jconfig.h + $(MAKE) $(AM_MAKEFLAGS) all-am + +.SUFFIXES: +.SUFFIXES: .c .lo .o .obj +am--refresh: Makefile + @: +$(srcdir)/Makefile.in: @MAINTAINER_MODE_TRUE@ $(srcdir)/Makefile.am $(am__configure_deps) + @for dep in $?; do \ + case '$(am__configure_deps)' in \ + *$$dep*) \ + echo ' cd $(srcdir) && $(AUTOMAKE) --foreign'; \ + $(am__cd) $(srcdir) && $(AUTOMAKE) --foreign \ + && exit 0; \ + exit 1;; \ + esac; \ + done; \ + echo ' cd $(top_srcdir) && $(AUTOMAKE) --foreign Makefile'; \ + $(am__cd) $(top_srcdir) && \ + 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testoutp.ppm $(srcdir)/testprog.jpg + ./cjpeg -dct int -progressive -opt -outfile testoutp.jpg $(srcdir)/testimg.ppm + ./jpegtran -outfile testoutt.jpg $(srcdir)/testprog.jpg + cmp $(srcdir)/testimg.ppm testout.ppm + cmp $(srcdir)/testimg.bmp testout.bmp + cmp $(srcdir)/testimg.jpg testout.jpg + cmp $(srcdir)/testimg.ppm testoutp.ppm + cmp $(srcdir)/testimgp.jpg testoutp.jpg + cmp $(srcdir)/testorig.jpg testoutt.jpg + +# Tell versions [3.59,3.63) of GNU make to not export all variables. +# Otherwise a system limit (for SysV at least) may be exceeded. +.NOEXPORT: diff --git a/jpeg/README b/jpeg/README new file mode 100644 index 0000000..0a23c19 --- /dev/null +++ b/jpeg/README @@ -0,0 +1,351 @@ +The Independent JPEG Group's JPEG software +========================================== + +README for release 8d of 15-Jan-2012 +==================================== + +This distribution contains the eighth public release of the Independent JPEG +Group's free JPEG software. You are welcome to redistribute this software and +to use it for any purpose, subject to the conditions under LEGAL ISSUES, below. + +This software is the work of Tom Lane, Guido Vollbeding, Philip Gladstone, +Bill Allombert, Jim Boucher, Lee Crocker, Bob Friesenhahn, Ben Jackson, +Julian Minguillon, Luis Ortiz, George Phillips, Davide Rossi, Ge' Weijers, +and other members of the Independent JPEG Group. + +IJG is not affiliated with the ISO/IEC JTC1/SC29/WG1 standards committee +(also known as JPEG, together with ITU-T SG16). + + +DOCUMENTATION ROADMAP +===================== + +This file contains the following sections: + +OVERVIEW General description of JPEG and the IJG software. +LEGAL ISSUES Copyright, lack of warranty, terms of distribution. +REFERENCES Where to learn more about JPEG. +ARCHIVE LOCATIONS Where to find newer versions of this software. +ACKNOWLEDGMENTS Special thanks. +FILE FORMAT WARS Software *not* to get. +TO DO Plans for future IJG releases. + +Other documentation files in the distribution are: + +User documentation: + install.txt How to configure and install the IJG software. + usage.txt Usage instructions for cjpeg, djpeg, jpegtran, + rdjpgcom, and wrjpgcom. + *.1 Unix-style man pages for programs (same info as usage.txt). + wizard.txt Advanced usage instructions for JPEG wizards only. + change.log Version-to-version change highlights. +Programmer and internal documentation: + libjpeg.txt How to use the JPEG library in your own programs. + example.c Sample code for calling the JPEG library. + structure.txt Overview of the JPEG library's internal structure. + filelist.txt Road map of IJG files. + coderules.txt Coding style rules --- please read if you contribute code. + +Please read at least the files install.txt and usage.txt. Some information +can also be found in the JPEG FAQ (Frequently Asked Questions) article. See +ARCHIVE LOCATIONS below to find out where to obtain the FAQ article. + +If you want to understand how the JPEG code works, we suggest reading one or +more of the REFERENCES, then looking at the documentation files (in roughly +the order listed) before diving into the code. + + +OVERVIEW +======== + +This package contains C software to implement JPEG image encoding, decoding, +and transcoding. JPEG (pronounced "jay-peg") is a standardized compression +method for full-color and gray-scale images. + +This software implements JPEG baseline, extended-sequential, and progressive +compression processes. Provision is made for supporting all variants of these +processes, although some uncommon parameter settings aren't implemented yet. +We have made no provision for supporting the hierarchical or lossless +processes defined in the standard. + +We provide a set of library routines for reading and writing JPEG image files, +plus two sample applications "cjpeg" and "djpeg", which use the library to +perform conversion between JPEG and some other popular image file formats. +The library is intended to be reused in other applications. + +In order to support file conversion and viewing software, we have included +considerable functionality beyond the bare JPEG coding/decoding capability; +for example, the color quantization modules are not strictly part of JPEG +decoding, but they are essential for output to colormapped file formats or +colormapped displays. These extra functions can be compiled out of the +library if not required for a particular application. + +We have also included "jpegtran", a utility for lossless transcoding between +different JPEG processes, and "rdjpgcom" and "wrjpgcom", two simple +applications for inserting and extracting textual comments in JFIF files. + +The emphasis in designing this software has been on achieving portability and +flexibility, while also making it fast enough to be useful. In particular, +the software is not intended to be read as a tutorial on JPEG. (See the +REFERENCES section for introductory material.) Rather, it is intended to +be reliable, portable, industrial-strength code. We do not claim to have +achieved that goal in every aspect of the software, but we strive for it. + +We welcome the use of this software as a component of commercial products. +No royalty is required, but we do ask for an acknowledgement in product +documentation, as described under LEGAL ISSUES. + + +LEGAL ISSUES +============ + +In plain English: + +1. We don't promise that this software works. (But if you find any bugs, + please let us know!) +2. You can use this software for whatever you want. You don't have to pay us. +3. You may not pretend that you wrote this software. If you use it in a + program, you must acknowledge somewhere in your documentation that + you've used the IJG code. + +In legalese: + +The authors make NO WARRANTY or representation, either express or implied, +with respect to this software, its quality, accuracy, merchantability, or +fitness for a particular purpose. This software is provided "AS IS", and you, +its user, assume the entire risk as to its quality and accuracy. + +This software is copyright (C) 1991-2012, Thomas G. Lane, Guido Vollbeding. +All Rights Reserved except as specified below. + +Permission is hereby granted to use, copy, modify, and distribute this +software (or portions thereof) for any purpose, without fee, subject to these +conditions: +(1) If any part of the source code for this software is distributed, then this +README file must be included, with this copyright and no-warranty notice +unaltered; and any additions, deletions, or changes to the original files +must be clearly indicated in accompanying documentation. +(2) If only executable code is distributed, then the accompanying +documentation must state that "this software is based in part on the work of +the Independent JPEG Group". +(3) Permission for use of this software is granted only if the user accepts +full responsibility for any undesirable consequences; the authors accept +NO LIABILITY for damages of any kind. + +These conditions apply to any software derived from or based on the IJG code, +not just to the unmodified library. If you use our work, you ought to +acknowledge us. + +Permission is NOT granted for the use of any IJG author's name or company name +in advertising or publicity relating to this software or products derived from +it. This software may be referred to only as "the Independent JPEG Group's +software". + +We specifically permit and encourage the use of this software as the basis of +commercial products, provided that all warranty or liability claims are +assumed by the product vendor. + + +ansi2knr.c is included in this distribution by permission of L. Peter Deutsch, +sole proprietor of its copyright holder, Aladdin Enterprises of Menlo Park, CA. +ansi2knr.c is NOT covered by the above copyright and conditions, but instead +by the usual distribution terms of the Free Software Foundation; principally, +that you must include source code if you redistribute it. (See the file +ansi2knr.c for full details.) However, since ansi2knr.c is not needed as part +of any program generated from the IJG code, this does not limit you more than +the foregoing paragraphs do. + +The Unix configuration script "configure" was produced with GNU Autoconf. +It is copyright by the Free Software Foundation but is freely distributable. +The same holds for its supporting scripts (config.guess, config.sub, +ltmain.sh). Another support script, install-sh, is copyright by X Consortium +but is also freely distributable. + +The IJG distribution formerly included code to read and write GIF files. +To avoid entanglement with the Unisys LZW patent, GIF reading support has +been removed altogether, and the GIF writer has been simplified to produce +"uncompressed GIFs". This technique does not use the LZW algorithm; the +resulting GIF files are larger than usual, but are readable by all standard +GIF decoders. + +We are required to state that + "The Graphics Interchange Format(c) is the Copyright property of + CompuServe Incorporated. GIF(sm) is a Service Mark property of + CompuServe Incorporated." + + +REFERENCES +========== + +We recommend reading one or more of these references before trying to +understand the innards of the JPEG software. + +The best short technical introduction to the JPEG compression algorithm is + Wallace, Gregory K. "The JPEG Still Picture Compression Standard", + Communications of the ACM, April 1991 (vol. 34 no. 4), pp. 30-44. +(Adjacent articles in that issue discuss MPEG motion picture compression, +applications of JPEG, and related topics.) If you don't have the CACM issue +handy, a PostScript file containing a revised version of Wallace's article is +available at http://www.ijg.org/files/wallace.ps.gz. The file (actually +a preprint for an article that appeared in IEEE Trans. Consumer Electronics) +omits the sample images that appeared in CACM, but it includes corrections +and some added material. Note: the Wallace article is copyright ACM and IEEE, +and it may not be used for commercial purposes. + +A somewhat less technical, more leisurely introduction to JPEG can be found in +"The Data Compression Book" by Mark Nelson and Jean-loup Gailly, published by +M&T Books (New York), 2nd ed. 1996, ISBN 1-55851-434-1. This book provides +good explanations and example C code for a multitude of compression methods +including JPEG. It is an excellent source if you are comfortable reading C +code but don't know much about data compression in general. The book's JPEG +sample code is far from industrial-strength, but when you are ready to look +at a full implementation, you've got one here... + +The best currently available description of JPEG is the textbook "JPEG Still +Image Data Compression Standard" by William B. Pennebaker and Joan L. +Mitchell, published by Van Nostrand Reinhold, 1993, ISBN 0-442-01272-1. +Price US$59.95, 638 pp. The book includes the complete text of the ISO JPEG +standards (DIS 10918-1 and draft DIS 10918-2). +Although this is by far the most detailed and comprehensive exposition of +JPEG publicly available, we point out that it is still missing an explanation +of the most essential properties and algorithms of the underlying DCT +technology. +If you think that you know about DCT-based JPEG after reading this book, +then you are in delusion. The real fundamentals and corresponding potential +of DCT-based JPEG are not publicly known so far, and that is the reason for +all the mistaken developments taking place in the image coding domain. + +The original JPEG standard is divided into two parts, Part 1 being the actual +specification, while Part 2 covers compliance testing methods. Part 1 is +titled "Digital Compression and Coding of Continuous-tone Still Images, +Part 1: Requirements and guidelines" and has document numbers ISO/IEC IS +10918-1, ITU-T T.81. Part 2 is titled "Digital Compression and Coding of +Continuous-tone Still Images, Part 2: Compliance testing" and has document +numbers ISO/IEC IS 10918-2, ITU-T T.83. +IJG JPEG 8 introduces an implementation of the JPEG SmartScale extension +which is specified in two documents: A contributed document at ITU and ISO +with title "ITU-T JPEG-Plus Proposal for Extending ITU-T T.81 for Advanced +Image Coding", April 2006, Geneva, Switzerland. The latest version of this +document is Revision 3. And a contributed document ISO/IEC JTC1/SC29/WG1 N +5799 with title "Evolution of JPEG", June/July 2011, Berlin, Germany. + +The JPEG standard does not specify all details of an interchangeable file +format. For the omitted details we follow the "JFIF" conventions, revision +1.02. JFIF 1.02 has been adopted as an Ecma International Technical Report +and thus received a formal publication status. It is available as a free +download in PDF format from +http://www.ecma-international.org/publications/techreports/E-TR-098.htm. +A PostScript version of the JFIF document is available at +http://www.ijg.org/files/jfif.ps.gz. There is also a plain text version at +http://www.ijg.org/files/jfif.txt.gz, but it is missing the figures. + +The TIFF 6.0 file format specification can be obtained by FTP from +ftp://ftp.sgi.com/graphics/tiff/TIFF6.ps.gz. The JPEG incorporation scheme +found in the TIFF 6.0 spec of 3-June-92 has a number of serious problems. +IJG does not recommend use of the TIFF 6.0 design (TIFF Compression tag 6). +Instead, we recommend the JPEG design proposed by TIFF Technical Note #2 +(Compression tag 7). Copies of this Note can be obtained from +http://www.ijg.org/files/. It is expected that the next revision +of the TIFF spec will replace the 6.0 JPEG design with the Note's design. +Although IJG's own code does not support TIFF/JPEG, the free libtiff library +uses our library to implement TIFF/JPEG per the Note. + + +ARCHIVE LOCATIONS +================= + +The "official" archive site for this software is www.ijg.org. +The most recent released version can always be found there in +directory "files". This particular version will be archived as +http://www.ijg.org/files/jpegsrc.v8d.tar.gz, and in Windows-compatible +"zip" archive format as http://www.ijg.org/files/jpegsr8d.zip. + +The JPEG FAQ (Frequently Asked Questions) article is a source of some +general information about JPEG. +It is available on the World Wide Web at http://www.faqs.org/faqs/jpeg-faq/ +and other news.answers archive sites, including the official news.answers +archive at rtfm.mit.edu: ftp://rtfm.mit.edu/pub/usenet/news.answers/jpeg-faq/. +If you don't have Web or FTP access, send e-mail to mail-server@rtfm.mit.edu +with body + send usenet/news.answers/jpeg-faq/part1 + send usenet/news.answers/jpeg-faq/part2 + + +ACKNOWLEDGMENTS +=============== + +Thank to Juergen Bruder for providing me with a copy of the common DCT +algorithm article, only to find out that I had come to the same result +in a more direct and comprehensible way with a more generative approach. + +Thank to Istvan Sebestyen and Joan L. Mitchell for inviting me to the +ITU JPEG (Study Group 16) meeting in Geneva, Switzerland. + +Thank to Thomas Wiegand and Gary Sullivan for inviting me to the +Joint Video Team (MPEG & ITU) meeting in Geneva, Switzerland. + +Thank to Thomas Richter and Daniel Lee for inviting me to the +ISO/IEC JTC1/SC29/WG1 (also known as JPEG, together with ITU-T SG16) +meeting in Berlin, Germany. + +Thank to John Korejwa and Massimo Ballerini for inviting me to +fruitful consultations in Boston, MA and Milan, Italy. + +Thank to Hendrik Elstner, Roland Fassauer, Simone Zuck, Guenther +Maier-Gerber, Walter Stoeber, Fred Schmitz, and Norbert Braunagel +for corresponding business development. + +Thank to Nico Zschach and Dirk Stelling of the technical support team +at the Digital Images company in Halle for providing me with extra +equipment for configuration tests. + +Thank to Richard F. Lyon (then of Foveon Inc.) for fruitful +communication about JPEG configuration in Sigma Photo Pro software. + +Thank to Andrew Finkenstadt for hosting the ijg.org site. + +Last but not least special thank to Thomas G. Lane for the original +design and development of this singular software package. + + +FILE FORMAT WARS +================ + +The ISO/IEC JTC1/SC29/WG1 standards committee (also known as JPEG, together +with ITU-T SG16) currently promotes different formats containing the name +"JPEG" which is misleading because these formats are incompatible with +original DCT-based JPEG and are based on faulty technologies. +IJG therefore does not and will not support such momentary mistakes +(see REFERENCES). +There exist also distributions under the name "OpenJPEG" promoting such +kind of formats which is misleading because they don't support original +JPEG images. +We have no sympathy for the promotion of inferior formats. Indeed, one of +the original reasons for developing this free software was to help force +convergence on common, interoperable format standards for JPEG files. +Don't use an incompatible file format! +(In any case, our decoder will remain capable of reading existing JPEG +image files indefinitely.) + +Furthermore, the ISO committee pretends to be "responsible for the popular +JPEG" in their public reports which is not true because they don't respond to +actual requirements for the maintenance of the original JPEG specification. + +There are currently distributions in circulation containing the name +"libjpeg" which claim to be a "derivative" or "fork" of the original +libjpeg, but don't have the features and are incompatible with formats +supported by actual IJG libjpeg distributions. Furthermore, they +violate the license conditions as described under LEGAL ISSUES above. +We have no sympathy for the release of misleading and illegal +distributions derived from obsolete code bases. +Don't use an obsolete code base! + + +TO DO +===== + +Version 8 is the first release of a new generation JPEG standard +to overcome the limitations of the original JPEG specification. +More features are being prepared for coming releases... + +Please send bug reports, offers of help, etc. to jpeg-info@jpegclub.org. diff --git a/jpeg/aclocal.m4 b/jpeg/aclocal.m4 new file mode 100644 index 0000000..9b38b97 --- /dev/null +++ b/jpeg/aclocal.m4 @@ -0,0 +1,9652 @@ +# generated automatically by aclocal 1.11.2 -*- Autoconf -*- + +# Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, +# 2005, 2006, 2007, 2008, 2009, 2010, 2011 Free Software Foundation, +# Inc. +# This file is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY, to the extent permitted by law; without +# even the implied warranty of MERCHANTABILITY or FITNESS FOR A +# PARTICULAR PURPOSE. + +m4_ifndef([AC_AUTOCONF_VERSION], + [m4_copy([m4_PACKAGE_VERSION], [AC_AUTOCONF_VERSION])])dnl +m4_if(m4_defn([AC_AUTOCONF_VERSION]), [2.68],, +[m4_warning([this file was generated for autoconf 2.68. +You have another version of autoconf. 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In configure, this macro expands +# each variable declared with _LT_DECL (and _LT_TAGDECL) into: +# +# ='`$ECHO "$" | $SED "$delay_single_quote_subst"`' +m4_defun([_LT_CONFIG_STATUS_DECLARATIONS], +[m4_foreach([_lt_var], m4_quote(lt_decl_all_varnames), + [m4_n([_LT_CONFIG_STATUS_DECLARE(_lt_var)])])]) + + +# _LT_LIBTOOL_TAGS +# ---------------- +# Output comment and list of tags supported by the script +m4_defun([_LT_LIBTOOL_TAGS], +[_LT_FORMAT_COMMENT([The names of the tagged configurations supported by this script])dnl +available_tags="_LT_TAGS"dnl +]) + + +# _LT_LIBTOOL_DECLARE(VARNAME, [TAG]) +# ----------------------------------- +# Extract the dictionary values for VARNAME (optionally with TAG) and +# expand to a commented shell variable setting: +# +# # Some comment about what VAR is for. +# visible_name=$lt_internal_name +m4_define([_LT_LIBTOOL_DECLARE], +[_LT_FORMAT_COMMENT(m4_quote(lt_dict_fetch([lt_decl_dict], [$1], + [description])))[]dnl +m4_pushdef([_libtool_name], + m4_quote(lt_dict_fetch([lt_decl_dict], [$1], [libtool_name])))[]dnl +m4_case(m4_quote(lt_dict_fetch([lt_decl_dict], [$1], [value])), + [0], [_libtool_name=[$]$1], + [1], [_libtool_name=$lt_[]$1], + [2], [_libtool_name=$lt_[]$1], + [_libtool_name=lt_dict_fetch([lt_decl_dict], [$1], [value])])[]dnl +m4_ifval([$2], [_$2])[]m4_popdef([_libtool_name])[]dnl +]) + + +# _LT_LIBTOOL_CONFIG_VARS +# ----------------------- +# Produce commented declarations of non-tagged libtool config variables +# suitable for insertion in the LIBTOOL CONFIG section of the `libtool' +# script. Tagged libtool config variables (even for the LIBTOOL CONFIG +# section) are produced by _LT_LIBTOOL_TAG_VARS. +m4_defun([_LT_LIBTOOL_CONFIG_VARS], +[m4_foreach([_lt_var], + m4_quote(_lt_decl_filter([tagged?], [no], [], lt_decl_varnames)), + [m4_n([_LT_LIBTOOL_DECLARE(_lt_var)])])]) + + +# _LT_LIBTOOL_TAG_VARS(TAG) +# ------------------------- +m4_define([_LT_LIBTOOL_TAG_VARS], +[m4_foreach([_lt_var], m4_quote(lt_decl_tag_varnames), + [m4_n([_LT_LIBTOOL_DECLARE(_lt_var, [$1])])])]) + + +# _LT_TAGVAR(VARNAME, [TAGNAME]) +# ------------------------------ +m4_define([_LT_TAGVAR], [m4_ifval([$2], [$1_$2], [$1])]) + + +# _LT_CONFIG_COMMANDS +# ------------------- +# Send accumulated output to $CONFIG_STATUS. Thanks to the lists of +# variables for single and double quote escaping we saved from calls +# to _LT_DECL, we can put quote escaped variables declarations +# into `config.status', and then the shell code to quote escape them in +# for loops in `config.status'. Finally, any additional code accumulated +# from calls to _LT_CONFIG_LIBTOOL_INIT is expanded. +m4_defun([_LT_CONFIG_COMMANDS], +[AC_PROVIDE_IFELSE([LT_OUTPUT], + dnl If the libtool generation code has been placed in $CONFIG_LT, + dnl instead of duplicating it all over again into config.status, + dnl then we will have config.status run $CONFIG_LT later, so it + dnl needs to know what name is stored there: + [AC_CONFIG_COMMANDS([libtool], + [$SHELL $CONFIG_LT || AS_EXIT(1)], [CONFIG_LT='$CONFIG_LT'])], + dnl If the libtool generation code is destined for config.status, + dnl expand the accumulated commands and init code now: + [AC_CONFIG_COMMANDS([libtool], + [_LT_OUTPUT_LIBTOOL_COMMANDS], [_LT_OUTPUT_LIBTOOL_COMMANDS_INIT])]) +])#_LT_CONFIG_COMMANDS + + +# Initialize. +m4_define([_LT_OUTPUT_LIBTOOL_COMMANDS_INIT], +[ + +# The HP-UX ksh and POSIX shell print the target directory to stdout +# if CDPATH is set. +(unset CDPATH) >/dev/null 2>&1 && unset CDPATH + +sed_quote_subst='$sed_quote_subst' +double_quote_subst='$double_quote_subst' +delay_variable_subst='$delay_variable_subst' +_LT_CONFIG_STATUS_DECLARATIONS +LTCC='$LTCC' +LTCFLAGS='$LTCFLAGS' +compiler='$compiler_DEFAULT' + +# A function that is used when there is no print builtin or printf. +func_fallback_echo () +{ + eval 'cat <<_LTECHO_EOF +\$[]1 +_LTECHO_EOF' +} + +# Quote evaled strings. +for var in lt_decl_all_varnames([[ \ +]], lt_decl_quote_varnames); do + case \`eval \\\\\$ECHO \\\\""\\\\\$\$var"\\\\"\` in + *[[\\\\\\\`\\"\\\$]]*) + eval "lt_\$var=\\\\\\"\\\`\\\$ECHO \\"\\\$\$var\\" | \\\$SED \\"\\\$sed_quote_subst\\"\\\`\\\\\\"" + ;; + *) + eval "lt_\$var=\\\\\\"\\\$\$var\\\\\\"" + ;; + esac +done + +# Double-quote double-evaled strings. +for var in lt_decl_all_varnames([[ \ +]], lt_decl_dquote_varnames); do + case \`eval \\\\\$ECHO \\\\""\\\\\$\$var"\\\\"\` in + *[[\\\\\\\`\\"\\\$]]*) + eval "lt_\$var=\\\\\\"\\\`\\\$ECHO \\"\\\$\$var\\" | \\\$SED -e \\"\\\$double_quote_subst\\" -e \\"\\\$sed_quote_subst\\" -e \\"\\\$delay_variable_subst\\"\\\`\\\\\\"" + ;; + *) + eval "lt_\$var=\\\\\\"\\\$\$var\\\\\\"" + ;; + esac +done + +_LT_OUTPUT_LIBTOOL_INIT +]) + +# _LT_GENERATED_FILE_INIT(FILE, [COMMENT]) +# ------------------------------------ +# Generate a child script FILE with all initialization necessary to +# reuse the environment learned by the parent script, and make the +# file executable. If COMMENT is supplied, it is inserted after the +# `#!' sequence but before initialization text begins. After this +# macro, additional text can be appended to FILE to form the body of +# the child script. The macro ends with non-zero status if the +# file could not be fully written (such as if the disk is full). +m4_ifdef([AS_INIT_GENERATED], +[m4_defun([_LT_GENERATED_FILE_INIT],[AS_INIT_GENERATED($@)])], +[m4_defun([_LT_GENERATED_FILE_INIT], +[m4_require([AS_PREPARE])]dnl +[m4_pushdef([AS_MESSAGE_LOG_FD])]dnl +[lt_write_fail=0 +cat >$1 <<_ASEOF || lt_write_fail=1 +#! $SHELL +# Generated by $as_me. +$2 +SHELL=\${CONFIG_SHELL-$SHELL} +export SHELL +_ASEOF +cat >>$1 <<\_ASEOF || lt_write_fail=1 +AS_SHELL_SANITIZE +_AS_PREPARE +exec AS_MESSAGE_FD>&1 +_ASEOF +test $lt_write_fail = 0 && chmod +x $1[]dnl +m4_popdef([AS_MESSAGE_LOG_FD])])])# _LT_GENERATED_FILE_INIT + +# LT_OUTPUT +# --------- +# This macro allows early generation of the libtool script (before +# AC_OUTPUT is called), incase it is used in configure for compilation +# tests. +AC_DEFUN([LT_OUTPUT], +[: ${CONFIG_LT=./config.lt} +AC_MSG_NOTICE([creating $CONFIG_LT]) +_LT_GENERATED_FILE_INIT(["$CONFIG_LT"], +[# Run this file to recreate a libtool stub with the current configuration.]) + +cat >>"$CONFIG_LT" <<\_LTEOF +lt_cl_silent=false +exec AS_MESSAGE_LOG_FD>>config.log +{ + echo + AS_BOX([Running $as_me.]) +} >&AS_MESSAGE_LOG_FD + +lt_cl_help="\ +\`$as_me' creates a local libtool stub from the current configuration, +for use in further configure time tests before the real libtool is +generated. + +Usage: $[0] [[OPTIONS]] + + -h, --help print this help, then exit + -V, --version print version number, then exit + -q, --quiet do not print progress messages + -d, --debug don't remove temporary files + +Report bugs to ." + +lt_cl_version="\ +m4_ifset([AC_PACKAGE_NAME], [AC_PACKAGE_NAME ])config.lt[]dnl +m4_ifset([AC_PACKAGE_VERSION], [ AC_PACKAGE_VERSION]) +configured by $[0], generated by m4_PACKAGE_STRING. + +Copyright (C) 2011 Free Software Foundation, Inc. +This config.lt script is free software; the Free Software Foundation +gives unlimited permision to copy, distribute and modify it." + +while test $[#] != 0 +do + case $[1] in + --version | --v* | -V ) + echo "$lt_cl_version"; exit 0 ;; + --help | --h* | -h ) + echo "$lt_cl_help"; exit 0 ;; + --debug | --d* | -d ) + debug=: ;; + --quiet | --q* | --silent | --s* | -q ) + lt_cl_silent=: ;; + + -*) AC_MSG_ERROR([unrecognized option: $[1] +Try \`$[0] --help' for more information.]) ;; + + *) AC_MSG_ERROR([unrecognized argument: $[1] +Try \`$[0] --help' for more information.]) ;; + esac + shift +done + +if $lt_cl_silent; then + exec AS_MESSAGE_FD>/dev/null +fi +_LTEOF + +cat >>"$CONFIG_LT" <<_LTEOF +_LT_OUTPUT_LIBTOOL_COMMANDS_INIT +_LTEOF + +cat >>"$CONFIG_LT" <<\_LTEOF +AC_MSG_NOTICE([creating $ofile]) +_LT_OUTPUT_LIBTOOL_COMMANDS +AS_EXIT(0) +_LTEOF +chmod +x "$CONFIG_LT" + +# configure is writing to config.log, but config.lt does its own redirection, +# appending to config.log, which fails on DOS, as config.log is still kept +# open by configure. Here we exec the FD to /dev/null, effectively closing +# config.log, so it can be properly (re)opened and appended to by config.lt. +lt_cl_success=: +test "$silent" = yes && + lt_config_lt_args="$lt_config_lt_args --quiet" +exec AS_MESSAGE_LOG_FD>/dev/null +$SHELL "$CONFIG_LT" $lt_config_lt_args || lt_cl_success=false +exec AS_MESSAGE_LOG_FD>>config.log +$lt_cl_success || AS_EXIT(1) +])# LT_OUTPUT + + +# _LT_CONFIG(TAG) +# --------------- +# If TAG is the built-in tag, create an initial libtool script with a +# default configuration from the untagged config vars. Otherwise add code +# to config.status for appending the configuration named by TAG from the +# matching tagged config vars. +m4_defun([_LT_CONFIG], +[m4_require([_LT_FILEUTILS_DEFAULTS])dnl +_LT_CONFIG_SAVE_COMMANDS([ + m4_define([_LT_TAG], m4_if([$1], [], [C], [$1]))dnl + m4_if(_LT_TAG, [C], [ + # See if we are running on zsh, and set the options which allow our + # commands through without removal of \ escapes. + if test -n "${ZSH_VERSION+set}" ; then + setopt NO_GLOB_SUBST + fi + + cfgfile="${ofile}T" + trap "$RM \"$cfgfile\"; exit 1" 1 2 15 + $RM "$cfgfile" + + cat <<_LT_EOF >> "$cfgfile" +#! $SHELL + +# `$ECHO "$ofile" | sed 's%^.*/%%'` - Provide generalized library-building support services. +# Generated automatically by $as_me ($PACKAGE$TIMESTAMP) $VERSION +# Libtool was configured on host `(hostname || uname -n) 2>/dev/null | sed 1q`: +# NOTE: Changes made to this file will be lost: look at ltmain.sh. +# +_LT_COPYING +_LT_LIBTOOL_TAGS + +# ### BEGIN LIBTOOL CONFIG +_LT_LIBTOOL_CONFIG_VARS +_LT_LIBTOOL_TAG_VARS +# ### END LIBTOOL CONFIG + +_LT_EOF + + case $host_os in + aix3*) + cat <<\_LT_EOF >> "$cfgfile" +# AIX sometimes has problems with the GCC collect2 program. For some +# reason, if we set the COLLECT_NAMES environment variable, the problems +# vanish in a puff of smoke. +if test "X${COLLECT_NAMES+set}" != Xset; then + COLLECT_NAMES= + export COLLECT_NAMES +fi +_LT_EOF + ;; + esac + + _LT_PROG_LTMAIN + + # We use sed instead of cat because bash on DJGPP gets confused if + # if finds mixed CR/LF and LF-only lines. Since sed operates in + # text mode, it properly converts lines to CR/LF. This bash problem + # is reportedly fixed, but why not run on old versions too? + sed '$q' "$ltmain" >> "$cfgfile" \ + || (rm -f "$cfgfile"; exit 1) + + _LT_PROG_REPLACE_SHELLFNS + + mv -f "$cfgfile" "$ofile" || + (rm -f "$ofile" && cp "$cfgfile" "$ofile" && rm -f "$cfgfile") + chmod +x "$ofile" +], +[cat <<_LT_EOF >> "$ofile" + +dnl Unfortunately we have to use $1 here, since _LT_TAG is not expanded +dnl in a comment (ie after a #). +# ### BEGIN LIBTOOL TAG CONFIG: $1 +_LT_LIBTOOL_TAG_VARS(_LT_TAG) +# ### END LIBTOOL TAG CONFIG: $1 +_LT_EOF +])dnl /m4_if +], +[m4_if([$1], [], [ + PACKAGE='$PACKAGE' + VERSION='$VERSION' + TIMESTAMP='$TIMESTAMP' + RM='$RM' + ofile='$ofile'], []) +])dnl /_LT_CONFIG_SAVE_COMMANDS +])# _LT_CONFIG + + +# LT_SUPPORTED_TAG(TAG) +# --------------------- +# Trace this macro to discover what tags are supported by the libtool +# --tag option, using: +# autoconf --trace 'LT_SUPPORTED_TAG:$1' +AC_DEFUN([LT_SUPPORTED_TAG], []) + + +# C support is built-in for now +m4_define([_LT_LANG_C_enabled], []) +m4_define([_LT_TAGS], []) + + +# LT_LANG(LANG) +# ------------- +# Enable libtool support for the given language if not already enabled. +AC_DEFUN([LT_LANG], +[AC_BEFORE([$0], [LT_OUTPUT])dnl +m4_case([$1], + [C], [_LT_LANG(C)], + [C++], [_LT_LANG(CXX)], + [Go], [_LT_LANG(GO)], + [Java], [_LT_LANG(GCJ)], + [Fortran 77], [_LT_LANG(F77)], + [Fortran], [_LT_LANG(FC)], + [Windows Resource], [_LT_LANG(RC)], + [m4_ifdef([_LT_LANG_]$1[_CONFIG], + [_LT_LANG($1)], + [m4_fatal([$0: unsupported language: "$1"])])])dnl +])# LT_LANG + + +# _LT_LANG(LANGNAME) +# ------------------ +m4_defun([_LT_LANG], +[m4_ifdef([_LT_LANG_]$1[_enabled], [], + [LT_SUPPORTED_TAG([$1])dnl + m4_append([_LT_TAGS], [$1 ])dnl + m4_define([_LT_LANG_]$1[_enabled], [])dnl + _LT_LANG_$1_CONFIG($1)])dnl +])# _LT_LANG + + +m4_ifndef([AC_PROG_GO], [ +# NOTE: This macro has been submitted for inclusion into # +# GNU Autoconf as AC_PROG_GO. When it is available in # +# a released version of Autoconf we should remove this # +# macro and use it instead. # +m4_defun([AC_PROG_GO], +[AC_LANG_PUSH(Go)dnl +AC_ARG_VAR([GOC], [Go compiler command])dnl +AC_ARG_VAR([GOFLAGS], [Go compiler flags])dnl +_AC_ARG_VAR_LDFLAGS()dnl +AC_CHECK_TOOL(GOC, gccgo) +if test -z "$GOC"; then + if test -n "$ac_tool_prefix"; then + AC_CHECK_PROG(GOC, [${ac_tool_prefix}gccgo], [${ac_tool_prefix}gccgo]) + fi +fi +if test -z "$GOC"; then + AC_CHECK_PROG(GOC, gccgo, gccgo, false) +fi +])#m4_defun +])#m4_ifndef + + +# _LT_LANG_DEFAULT_CONFIG +# ----------------------- +m4_defun([_LT_LANG_DEFAULT_CONFIG], +[AC_PROVIDE_IFELSE([AC_PROG_CXX], + [LT_LANG(CXX)], + [m4_define([AC_PROG_CXX], defn([AC_PROG_CXX])[LT_LANG(CXX)])]) + +AC_PROVIDE_IFELSE([AC_PROG_F77], + [LT_LANG(F77)], + [m4_define([AC_PROG_F77], defn([AC_PROG_F77])[LT_LANG(F77)])]) + +AC_PROVIDE_IFELSE([AC_PROG_FC], + [LT_LANG(FC)], + [m4_define([AC_PROG_FC], defn([AC_PROG_FC])[LT_LANG(FC)])]) + +dnl The call to [A][M_PROG_GCJ] is quoted like that to stop aclocal +dnl pulling things in needlessly. +AC_PROVIDE_IFELSE([AC_PROG_GCJ], + [LT_LANG(GCJ)], + [AC_PROVIDE_IFELSE([A][M_PROG_GCJ], + [LT_LANG(GCJ)], + [AC_PROVIDE_IFELSE([LT_PROG_GCJ], + [LT_LANG(GCJ)], + [m4_ifdef([AC_PROG_GCJ], + [m4_define([AC_PROG_GCJ], defn([AC_PROG_GCJ])[LT_LANG(GCJ)])]) + m4_ifdef([A][M_PROG_GCJ], + [m4_define([A][M_PROG_GCJ], defn([A][M_PROG_GCJ])[LT_LANG(GCJ)])]) + m4_ifdef([LT_PROG_GCJ], + [m4_define([LT_PROG_GCJ], defn([LT_PROG_GCJ])[LT_LANG(GCJ)])])])])]) + +AC_PROVIDE_IFELSE([AC_PROG_GO], + [LT_LANG(GO)], + [m4_define([AC_PROG_GO], defn([AC_PROG_GO])[LT_LANG(GO)])]) + +AC_PROVIDE_IFELSE([LT_PROG_RC], + [LT_LANG(RC)], + [m4_define([LT_PROG_RC], defn([LT_PROG_RC])[LT_LANG(RC)])]) +])# _LT_LANG_DEFAULT_CONFIG + +# Obsolete macros: +AU_DEFUN([AC_LIBTOOL_CXX], [LT_LANG(C++)]) +AU_DEFUN([AC_LIBTOOL_F77], [LT_LANG(Fortran 77)]) +AU_DEFUN([AC_LIBTOOL_FC], [LT_LANG(Fortran)]) +AU_DEFUN([AC_LIBTOOL_GCJ], [LT_LANG(Java)]) +AU_DEFUN([AC_LIBTOOL_RC], [LT_LANG(Windows Resource)]) +dnl aclocal-1.4 backwards compatibility: +dnl AC_DEFUN([AC_LIBTOOL_CXX], []) +dnl AC_DEFUN([AC_LIBTOOL_F77], []) +dnl AC_DEFUN([AC_LIBTOOL_FC], []) +dnl AC_DEFUN([AC_LIBTOOL_GCJ], []) +dnl AC_DEFUN([AC_LIBTOOL_RC], []) + + +# _LT_TAG_COMPILER +# ---------------- +m4_defun([_LT_TAG_COMPILER], +[AC_REQUIRE([AC_PROG_CC])dnl + +_LT_DECL([LTCC], [CC], [1], [A C compiler])dnl +_LT_DECL([LTCFLAGS], [CFLAGS], [1], [LTCC compiler flags])dnl +_LT_TAGDECL([CC], [compiler], [1], [A language specific compiler])dnl +_LT_TAGDECL([with_gcc], [GCC], [0], [Is the compiler the GNU compiler?])dnl + +# If no C compiler was specified, use CC. +LTCC=${LTCC-"$CC"} + +# If no C compiler flags were specified, use CFLAGS. +LTCFLAGS=${LTCFLAGS-"$CFLAGS"} + +# Allow CC to be a program name with arguments. +compiler=$CC +])# _LT_TAG_COMPILER + + +# _LT_COMPILER_BOILERPLATE +# ------------------------ +# Check for compiler boilerplate output or warnings with +# the simple compiler test code. +m4_defun([_LT_COMPILER_BOILERPLATE], +[m4_require([_LT_DECL_SED])dnl +ac_outfile=conftest.$ac_objext +echo "$lt_simple_compile_test_code" >conftest.$ac_ext +eval "$ac_compile" 2>&1 >/dev/null | $SED '/^$/d; /^ *+/d' >conftest.err +_lt_compiler_boilerplate=`cat conftest.err` +$RM conftest* +])# _LT_COMPILER_BOILERPLATE + + +# _LT_LINKER_BOILERPLATE +# ---------------------- +# Check for linker boilerplate output or warnings with +# the simple link test code. +m4_defun([_LT_LINKER_BOILERPLATE], +[m4_require([_LT_DECL_SED])dnl +ac_outfile=conftest.$ac_objext +echo "$lt_simple_link_test_code" >conftest.$ac_ext +eval "$ac_link" 2>&1 >/dev/null | $SED '/^$/d; /^ *+/d' >conftest.err +_lt_linker_boilerplate=`cat conftest.err` +$RM -r conftest* +])# _LT_LINKER_BOILERPLATE + +# _LT_REQUIRED_DARWIN_CHECKS +# ------------------------- +m4_defun_once([_LT_REQUIRED_DARWIN_CHECKS],[ + case $host_os in + rhapsody* | darwin*) + AC_CHECK_TOOL([DSYMUTIL], [dsymutil], [:]) + AC_CHECK_TOOL([NMEDIT], [nmedit], [:]) + AC_CHECK_TOOL([LIPO], [lipo], [:]) + AC_CHECK_TOOL([OTOOL], [otool], [:]) + AC_CHECK_TOOL([OTOOL64], [otool64], [:]) + _LT_DECL([], [DSYMUTIL], [1], + [Tool to manipulate archived DWARF debug symbol files on Mac OS X]) + _LT_DECL([], [NMEDIT], [1], + [Tool to change global to local symbols on Mac OS X]) + _LT_DECL([], [LIPO], [1], + [Tool to manipulate fat objects and archives on Mac OS X]) + _LT_DECL([], [OTOOL], [1], + [ldd/readelf like tool for Mach-O binaries on Mac OS X]) + _LT_DECL([], [OTOOL64], [1], + [ldd/readelf like tool for 64 bit Mach-O binaries on Mac OS X 10.4]) + + AC_CACHE_CHECK([for -single_module linker flag],[lt_cv_apple_cc_single_mod], + [lt_cv_apple_cc_single_mod=no + if test -z "${LT_MULTI_MODULE}"; then + # By default we will add the -single_module flag. You can override + # by either setting the environment variable LT_MULTI_MODULE + # non-empty at configure time, or by adding -multi_module to the + # link flags. + rm -rf libconftest.dylib* + echo "int foo(void){return 1;}" > conftest.c + echo "$LTCC $LTCFLAGS $LDFLAGS -o libconftest.dylib \ +-dynamiclib -Wl,-single_module conftest.c" >&AS_MESSAGE_LOG_FD + $LTCC $LTCFLAGS $LDFLAGS -o libconftest.dylib \ + -dynamiclib -Wl,-single_module conftest.c 2>conftest.err + _lt_result=$? + # If there is a non-empty error log, and "single_module" + # appears in it, assume the flag caused a linker warning + if test -s conftest.err && $GREP single_module conftest.err; then + cat conftest.err >&AS_MESSAGE_LOG_FD + # Otherwise, if the output was created with a 0 exit code from + # the compiler, it worked. + elif test -f libconftest.dylib && test $_lt_result -eq 0; then + lt_cv_apple_cc_single_mod=yes + else + cat conftest.err >&AS_MESSAGE_LOG_FD + fi + rm -rf libconftest.dylib* + rm -f conftest.* + fi]) + + AC_CACHE_CHECK([for -exported_symbols_list linker flag], + [lt_cv_ld_exported_symbols_list], + [lt_cv_ld_exported_symbols_list=no + save_LDFLAGS=$LDFLAGS + echo "_main" > conftest.sym + LDFLAGS="$LDFLAGS -Wl,-exported_symbols_list,conftest.sym" + AC_LINK_IFELSE([AC_LANG_PROGRAM([],[])], + [lt_cv_ld_exported_symbols_list=yes], + [lt_cv_ld_exported_symbols_list=no]) + LDFLAGS="$save_LDFLAGS" + ]) + + AC_CACHE_CHECK([for -force_load linker flag],[lt_cv_ld_force_load], + [lt_cv_ld_force_load=no + cat > conftest.c << _LT_EOF +int forced_loaded() { return 2;} +_LT_EOF + echo "$LTCC $LTCFLAGS -c -o conftest.o conftest.c" >&AS_MESSAGE_LOG_FD + $LTCC $LTCFLAGS -c -o conftest.o conftest.c 2>&AS_MESSAGE_LOG_FD + echo "$AR cru libconftest.a conftest.o" >&AS_MESSAGE_LOG_FD + $AR cru libconftest.a conftest.o 2>&AS_MESSAGE_LOG_FD + echo "$RANLIB libconftest.a" >&AS_MESSAGE_LOG_FD + $RANLIB libconftest.a 2>&AS_MESSAGE_LOG_FD + cat > conftest.c << _LT_EOF +int main() { return 0;} +_LT_EOF + echo "$LTCC $LTCFLAGS $LDFLAGS -o conftest conftest.c -Wl,-force_load,./libconftest.a" >&AS_MESSAGE_LOG_FD + $LTCC $LTCFLAGS $LDFLAGS -o conftest conftest.c -Wl,-force_load,./libconftest.a 2>conftest.err + _lt_result=$? + if test -s conftest.err && $GREP force_load conftest.err; then + cat conftest.err >&AS_MESSAGE_LOG_FD + elif test -f conftest && test $_lt_result -eq 0 && $GREP forced_load conftest >/dev/null 2>&1 ; then + lt_cv_ld_force_load=yes + else + cat conftest.err >&AS_MESSAGE_LOG_FD + fi + rm -f conftest.err libconftest.a conftest conftest.c + rm -rf conftest.dSYM + ]) + case $host_os in + rhapsody* | darwin1.[[012]]) + _lt_dar_allow_undefined='${wl}-undefined ${wl}suppress' ;; + darwin1.*) + _lt_dar_allow_undefined='${wl}-flat_namespace ${wl}-undefined ${wl}suppress' ;; + darwin*) # darwin 5.x on + # if running on 10.5 or later, the deployment target defaults + # to the OS version, if on x86, and 10.4, the deployment + # target defaults to 10.4. Don't you love it? + case ${MACOSX_DEPLOYMENT_TARGET-10.0},$host in + 10.0,*86*-darwin8*|10.0,*-darwin[[91]]*) + _lt_dar_allow_undefined='${wl}-undefined ${wl}dynamic_lookup' ;; + 10.[[012]]*) + _lt_dar_allow_undefined='${wl}-flat_namespace ${wl}-undefined ${wl}suppress' ;; + 10.*) + _lt_dar_allow_undefined='${wl}-undefined ${wl}dynamic_lookup' ;; + esac + ;; + esac + if test "$lt_cv_apple_cc_single_mod" = "yes"; then + _lt_dar_single_mod='$single_module' + fi + if test "$lt_cv_ld_exported_symbols_list" = "yes"; then + _lt_dar_export_syms=' ${wl}-exported_symbols_list,$output_objdir/${libname}-symbols.expsym' + else + _lt_dar_export_syms='~$NMEDIT -s $output_objdir/${libname}-symbols.expsym ${lib}' + fi + if test "$DSYMUTIL" != ":" && test "$lt_cv_ld_force_load" = "no"; then + _lt_dsymutil='~$DSYMUTIL $lib || :' + else + _lt_dsymutil= + fi + ;; + esac +]) + + +# _LT_DARWIN_LINKER_FEATURES([TAG]) +# --------------------------------- +# Checks for linker and compiler features on darwin +m4_defun([_LT_DARWIN_LINKER_FEATURES], +[ + m4_require([_LT_REQUIRED_DARWIN_CHECKS]) + _LT_TAGVAR(archive_cmds_need_lc, $1)=no + _LT_TAGVAR(hardcode_direct, $1)=no + _LT_TAGVAR(hardcode_automatic, $1)=yes + _LT_TAGVAR(hardcode_shlibpath_var, $1)=unsupported + if test "$lt_cv_ld_force_load" = "yes"; then + _LT_TAGVAR(whole_archive_flag_spec, $1)='`for conv in $convenience\"\"; do test -n \"$conv\" && new_convenience=\"$new_convenience ${wl}-force_load,$conv\"; done; func_echo_all \"$new_convenience\"`' + m4_case([$1], [F77], [_LT_TAGVAR(compiler_needs_object, $1)=yes], + [FC], [_LT_TAGVAR(compiler_needs_object, $1)=yes]) + else + _LT_TAGVAR(whole_archive_flag_spec, $1)='' + fi + _LT_TAGVAR(link_all_deplibs, $1)=yes + _LT_TAGVAR(allow_undefined_flag, $1)="$_lt_dar_allow_undefined" + case $cc_basename in + ifort*) _lt_dar_can_shared=yes ;; + *) _lt_dar_can_shared=$GCC ;; + esac + if test "$_lt_dar_can_shared" = "yes"; then + output_verbose_link_cmd=func_echo_all + _LT_TAGVAR(archive_cmds, $1)="\$CC -dynamiclib \$allow_undefined_flag -o \$lib \$libobjs \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring $_lt_dar_single_mod${_lt_dsymutil}" + _LT_TAGVAR(module_cmds, $1)="\$CC \$allow_undefined_flag -o \$lib -bundle \$libobjs \$deplibs \$compiler_flags${_lt_dsymutil}" + _LT_TAGVAR(archive_expsym_cmds, $1)="sed 's,^,_,' < \$export_symbols > \$output_objdir/\${libname}-symbols.expsym~\$CC -dynamiclib \$allow_undefined_flag -o \$lib \$libobjs \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring ${_lt_dar_single_mod}${_lt_dar_export_syms}${_lt_dsymutil}" + _LT_TAGVAR(module_expsym_cmds, $1)="sed -e 's,^,_,' < \$export_symbols > \$output_objdir/\${libname}-symbols.expsym~\$CC \$allow_undefined_flag -o \$lib -bundle \$libobjs \$deplibs \$compiler_flags${_lt_dar_export_syms}${_lt_dsymutil}" + m4_if([$1], [CXX], +[ if test "$lt_cv_apple_cc_single_mod" != "yes"; then + _LT_TAGVAR(archive_cmds, $1)="\$CC -r -keep_private_externs -nostdlib -o \${lib}-master.o \$libobjs~\$CC -dynamiclib \$allow_undefined_flag -o \$lib \${lib}-master.o \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring${_lt_dsymutil}" + _LT_TAGVAR(archive_expsym_cmds, $1)="sed 's,^,_,' < \$export_symbols > \$output_objdir/\${libname}-symbols.expsym~\$CC -r -keep_private_externs -nostdlib -o \${lib}-master.o \$libobjs~\$CC -dynamiclib \$allow_undefined_flag -o \$lib \${lib}-master.o \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring${_lt_dar_export_syms}${_lt_dsymutil}" + fi +],[]) + else + _LT_TAGVAR(ld_shlibs, $1)=no + fi +]) + +# _LT_SYS_MODULE_PATH_AIX([TAGNAME]) +# ---------------------------------- +# Links a minimal program and checks the executable +# for the system default hardcoded library path. In most cases, +# this is /usr/lib:/lib, but when the MPI compilers are used +# the location of the communication and MPI libs are included too. +# If we don't find anything, use the default library path according +# to the aix ld manual. +# Store the results from the different compilers for each TAGNAME. +# Allow to override them for all tags through lt_cv_aix_libpath. +m4_defun([_LT_SYS_MODULE_PATH_AIX], +[m4_require([_LT_DECL_SED])dnl +if test "${lt_cv_aix_libpath+set}" = set; then + aix_libpath=$lt_cv_aix_libpath +else + AC_CACHE_VAL([_LT_TAGVAR([lt_cv_aix_libpath_], [$1])], + [AC_LINK_IFELSE([AC_LANG_PROGRAM],[ + lt_aix_libpath_sed='[ + /Import File Strings/,/^$/ { + /^0/ { + s/^0 *\([^ ]*\) *$/\1/ + p + } + }]' + _LT_TAGVAR([lt_cv_aix_libpath_], [$1])=`dump -H conftest$ac_exeext 2>/dev/null | $SED -n -e "$lt_aix_libpath_sed"` + # Check for a 64-bit object if we didn't find anything. + if test -z "$_LT_TAGVAR([lt_cv_aix_libpath_], [$1])"; then + _LT_TAGVAR([lt_cv_aix_libpath_], [$1])=`dump -HX64 conftest$ac_exeext 2>/dev/null | $SED -n -e "$lt_aix_libpath_sed"` + fi],[]) + if test -z "$_LT_TAGVAR([lt_cv_aix_libpath_], [$1])"; then + _LT_TAGVAR([lt_cv_aix_libpath_], [$1])="/usr/lib:/lib" + fi + ]) + aix_libpath=$_LT_TAGVAR([lt_cv_aix_libpath_], [$1]) +fi +])# _LT_SYS_MODULE_PATH_AIX + + +# _LT_SHELL_INIT(ARG) +# ------------------- +m4_define([_LT_SHELL_INIT], +[m4_divert_text([M4SH-INIT], [$1 +])])# _LT_SHELL_INIT + + + +# _LT_PROG_ECHO_BACKSLASH +# ----------------------- +# Find how we can fake an echo command that does not interpret backslash. +# In particular, with Autoconf 2.60 or later we add some code to the start +# of the generated configure script which will find a shell with a builtin +# printf (which we can use as an echo command). +m4_defun([_LT_PROG_ECHO_BACKSLASH], +[ECHO='\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\' +ECHO=$ECHO$ECHO$ECHO$ECHO$ECHO +ECHO=$ECHO$ECHO$ECHO$ECHO$ECHO$ECHO + +AC_MSG_CHECKING([how to print strings]) +# Test print first, because it will be a builtin if present. +if test "X`( print -r -- -n ) 2>/dev/null`" = X-n && \ + test "X`print -r -- $ECHO 2>/dev/null`" = "X$ECHO"; then + ECHO='print -r --' +elif test "X`printf %s $ECHO 2>/dev/null`" = "X$ECHO"; then + ECHO='printf %s\n' +else + # Use this function as a fallback that always works. + func_fallback_echo () + { + eval 'cat <<_LTECHO_EOF +$[]1 +_LTECHO_EOF' + } + ECHO='func_fallback_echo' +fi + +# func_echo_all arg... +# Invoke $ECHO with all args, space-separated. +func_echo_all () +{ + $ECHO "$*" +} + +case "$ECHO" in + printf*) AC_MSG_RESULT([printf]) ;; + print*) AC_MSG_RESULT([print -r]) ;; + *) AC_MSG_RESULT([cat]) ;; +esac + +m4_ifdef([_AS_DETECT_SUGGESTED], +[_AS_DETECT_SUGGESTED([ + test -n "${ZSH_VERSION+set}${BASH_VERSION+set}" || ( + ECHO='\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\' + ECHO=$ECHO$ECHO$ECHO$ECHO$ECHO + ECHO=$ECHO$ECHO$ECHO$ECHO$ECHO$ECHO + PATH=/empty FPATH=/empty; export PATH FPATH + test "X`printf %s $ECHO`" = "X$ECHO" \ + || test "X`print -r -- $ECHO`" = "X$ECHO" )])]) + +_LT_DECL([], [SHELL], [1], [Shell to use when invoking shell scripts]) +_LT_DECL([], [ECHO], [1], [An echo program that protects backslashes]) +])# _LT_PROG_ECHO_BACKSLASH + + +# _LT_WITH_SYSROOT +# ---------------- +AC_DEFUN([_LT_WITH_SYSROOT], +[AC_MSG_CHECKING([for sysroot]) +AC_ARG_WITH([sysroot], +[ --with-sysroot[=DIR] Search for dependent libraries within DIR + (or the compiler's sysroot if not specified).], +[], [with_sysroot=no]) + +dnl lt_sysroot will always be passed unquoted. We quote it here +dnl in case the user passed a directory name. +lt_sysroot= +case ${with_sysroot} in #( + yes) + if test "$GCC" = yes; then + lt_sysroot=`$CC --print-sysroot 2>/dev/null` + fi + ;; #( + /*) + lt_sysroot=`echo "$with_sysroot" | sed -e "$sed_quote_subst"` + ;; #( + no|'') + ;; #( + *) + AC_MSG_RESULT([${with_sysroot}]) + AC_MSG_ERROR([The sysroot must be an absolute path.]) + ;; +esac + + AC_MSG_RESULT([${lt_sysroot:-no}]) +_LT_DECL([], [lt_sysroot], [0], [The root where to search for ]dnl +[dependent libraries, and in which our libraries should be installed.])]) + +# _LT_ENABLE_LOCK +# --------------- +m4_defun([_LT_ENABLE_LOCK], +[AC_ARG_ENABLE([libtool-lock], + [AS_HELP_STRING([--disable-libtool-lock], + [avoid locking (might break parallel builds)])]) +test "x$enable_libtool_lock" != xno && enable_libtool_lock=yes + +# Some flags need to be propagated to the compiler or linker for good +# libtool support. +case $host in +ia64-*-hpux*) + # Find out which ABI we are using. + echo 'int i;' > conftest.$ac_ext + if AC_TRY_EVAL(ac_compile); then + case `/usr/bin/file conftest.$ac_objext` in + *ELF-32*) + HPUX_IA64_MODE="32" + ;; + *ELF-64*) + HPUX_IA64_MODE="64" + ;; + esac + fi + rm -rf conftest* + ;; +*-*-irix6*) + # Find out which ABI we are using. + echo '[#]line '$LINENO' "configure"' > conftest.$ac_ext + if AC_TRY_EVAL(ac_compile); then + if test "$lt_cv_prog_gnu_ld" = yes; then + case `/usr/bin/file conftest.$ac_objext` in + *32-bit*) + LD="${LD-ld} -melf32bsmip" + ;; + *N32*) + LD="${LD-ld} -melf32bmipn32" + ;; + *64-bit*) + LD="${LD-ld} -melf64bmip" + ;; + esac + else + case `/usr/bin/file conftest.$ac_objext` in + *32-bit*) + LD="${LD-ld} -32" + ;; + *N32*) + LD="${LD-ld} -n32" + ;; + *64-bit*) + LD="${LD-ld} -64" + ;; + esac + fi + fi + rm -rf conftest* + ;; + +x86_64-*kfreebsd*-gnu|x86_64-*linux*|ppc*-*linux*|powerpc*-*linux*| \ +s390*-*linux*|s390*-*tpf*|sparc*-*linux*) + # Find out which ABI we are using. + echo 'int i;' > conftest.$ac_ext + if AC_TRY_EVAL(ac_compile); then + case `/usr/bin/file conftest.o` in + *32-bit*) + case $host in + x86_64-*kfreebsd*-gnu) + LD="${LD-ld} -m elf_i386_fbsd" + ;; + x86_64-*linux*) + LD="${LD-ld} -m elf_i386" + ;; + ppc64-*linux*|powerpc64-*linux*) + LD="${LD-ld} -m elf32ppclinux" + ;; + s390x-*linux*) + LD="${LD-ld} -m elf_s390" + ;; + sparc64-*linux*) + LD="${LD-ld} -m elf32_sparc" + ;; + esac + ;; + *64-bit*) + case $host in + x86_64-*kfreebsd*-gnu) + LD="${LD-ld} -m elf_x86_64_fbsd" + ;; + x86_64-*linux*) + LD="${LD-ld} -m elf_x86_64" + ;; + ppc*-*linux*|powerpc*-*linux*) + LD="${LD-ld} -m elf64ppc" + ;; + s390*-*linux*|s390*-*tpf*) + LD="${LD-ld} -m elf64_s390" + ;; + sparc*-*linux*) + LD="${LD-ld} -m elf64_sparc" + ;; + esac + ;; + esac + fi + rm -rf conftest* + ;; + +*-*-sco3.2v5*) + # On SCO OpenServer 5, we need -belf to get full-featured binaries. + SAVE_CFLAGS="$CFLAGS" + CFLAGS="$CFLAGS -belf" + AC_CACHE_CHECK([whether the C compiler needs -belf], lt_cv_cc_needs_belf, + [AC_LANG_PUSH(C) + AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],[[]])],[lt_cv_cc_needs_belf=yes],[lt_cv_cc_needs_belf=no]) + AC_LANG_POP]) + if test x"$lt_cv_cc_needs_belf" != x"yes"; then + # this is probably gcc 2.8.0, egcs 1.0 or newer; no need for -belf + CFLAGS="$SAVE_CFLAGS" + fi + ;; +*-*solaris*) + # Find out which ABI we are using. + echo 'int i;' > conftest.$ac_ext + if AC_TRY_EVAL(ac_compile); then + case `/usr/bin/file conftest.o` in + *64-bit*) + case $lt_cv_prog_gnu_ld in + yes*) + case $host in + i?86-*-solaris*) + LD="${LD-ld} -m elf_x86_64" + ;; + sparc*-*-solaris*) + LD="${LD-ld} -m elf64_sparc" + ;; + esac + # GNU ld 2.21 introduced _sol2 emulations. Use them if available. + if ${LD-ld} -V | grep _sol2 >/dev/null 2>&1; then + LD="${LD-ld}_sol2" + fi + ;; + *) + if ${LD-ld} -64 -r -o conftest2.o conftest.o >/dev/null 2>&1; then + LD="${LD-ld} -64" + fi + ;; + esac + ;; + esac + fi + rm -rf conftest* + ;; +esac + +need_locks="$enable_libtool_lock" +])# _LT_ENABLE_LOCK + + +# _LT_PROG_AR +# ----------- +m4_defun([_LT_PROG_AR], +[AC_CHECK_TOOLS(AR, [ar], false) +: ${AR=ar} +: ${AR_FLAGS=cru} +_LT_DECL([], [AR], [1], [The archiver]) +_LT_DECL([], [AR_FLAGS], [1], [Flags to create an archive]) + +AC_CACHE_CHECK([for archiver @FILE support], [lt_cv_ar_at_file], + [lt_cv_ar_at_file=no + AC_COMPILE_IFELSE([AC_LANG_PROGRAM], + [echo conftest.$ac_objext > conftest.lst + lt_ar_try='$AR $AR_FLAGS libconftest.a @conftest.lst >&AS_MESSAGE_LOG_FD' + AC_TRY_EVAL([lt_ar_try]) + if test "$ac_status" -eq 0; then + # Ensure the archiver fails upon bogus file names. + rm -f conftest.$ac_objext libconftest.a + AC_TRY_EVAL([lt_ar_try]) + if test "$ac_status" -ne 0; then + lt_cv_ar_at_file=@ + fi + fi + rm -f conftest.* libconftest.a + ]) + ]) + +if test "x$lt_cv_ar_at_file" = xno; then + archiver_list_spec= +else + archiver_list_spec=$lt_cv_ar_at_file +fi +_LT_DECL([], [archiver_list_spec], [1], + [How to feed a file listing to the archiver]) +])# _LT_PROG_AR + + +# _LT_CMD_OLD_ARCHIVE +# ------------------- +m4_defun([_LT_CMD_OLD_ARCHIVE], +[_LT_PROG_AR + +AC_CHECK_TOOL(STRIP, strip, :) +test -z "$STRIP" && STRIP=: +_LT_DECL([], [STRIP], [1], [A symbol stripping program]) + +AC_CHECK_TOOL(RANLIB, ranlib, :) +test -z "$RANLIB" && RANLIB=: +_LT_DECL([], [RANLIB], [1], + [Commands used to install an old-style archive]) + +# Determine commands to create old-style static archives. +old_archive_cmds='$AR $AR_FLAGS $oldlib$oldobjs' +old_postinstall_cmds='chmod 644 $oldlib' +old_postuninstall_cmds= + +if test -n "$RANLIB"; then + case $host_os in + openbsd*) + old_postinstall_cmds="$old_postinstall_cmds~\$RANLIB -t \$tool_oldlib" + ;; + *) + old_postinstall_cmds="$old_postinstall_cmds~\$RANLIB \$tool_oldlib" + ;; + esac + old_archive_cmds="$old_archive_cmds~\$RANLIB \$tool_oldlib" +fi + +case $host_os in + darwin*) + lock_old_archive_extraction=yes ;; + *) + lock_old_archive_extraction=no ;; +esac +_LT_DECL([], [old_postinstall_cmds], [2]) +_LT_DECL([], [old_postuninstall_cmds], [2]) +_LT_TAGDECL([], [old_archive_cmds], [2], + [Commands used to build an old-style archive]) +_LT_DECL([], [lock_old_archive_extraction], [0], + [Whether to use a lock for old archive extraction]) +])# _LT_CMD_OLD_ARCHIVE + + +# _LT_COMPILER_OPTION(MESSAGE, VARIABLE-NAME, FLAGS, +# [OUTPUT-FILE], [ACTION-SUCCESS], [ACTION-FAILURE]) +# ---------------------------------------------------------------- +# Check whether the given compiler option works +AC_DEFUN([_LT_COMPILER_OPTION], +[m4_require([_LT_FILEUTILS_DEFAULTS])dnl +m4_require([_LT_DECL_SED])dnl +AC_CACHE_CHECK([$1], [$2], + [$2=no + m4_if([$4], , [ac_outfile=conftest.$ac_objext], [ac_outfile=$4]) + echo "$lt_simple_compile_test_code" > conftest.$ac_ext + lt_compiler_flag="$3" + # Insert the option either (1) after the last *FLAGS variable, or + # (2) before a word containing "conftest.", or (3) at the end. + # Note that $ac_compile itself does not contain backslashes and begins + # with a dollar sign (not a hyphen), so the echo should work correctly. + # The option is referenced via a variable to avoid confusing sed. + lt_compile=`echo "$ac_compile" | $SED \ + -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \ + -e 's: [[^ ]]*conftest\.: $lt_compiler_flag&:; t' \ + -e 's:$: $lt_compiler_flag:'` + (eval echo "\"\$as_me:$LINENO: $lt_compile\"" >&AS_MESSAGE_LOG_FD) + (eval "$lt_compile" 2>conftest.err) + ac_status=$? + cat conftest.err >&AS_MESSAGE_LOG_FD + echo "$as_me:$LINENO: \$? = $ac_status" >&AS_MESSAGE_LOG_FD + if (exit $ac_status) && test -s "$ac_outfile"; then + # The compiler can only warn and ignore the option if not recognized + # So say no if there are warnings other than the usual output. + $ECHO "$_lt_compiler_boilerplate" | $SED '/^$/d' >conftest.exp + $SED '/^$/d; /^ *+/d' conftest.err >conftest.er2 + if test ! -s conftest.er2 || diff conftest.exp conftest.er2 >/dev/null; then + $2=yes + fi + fi + $RM conftest* +]) + +if test x"[$]$2" = xyes; then + m4_if([$5], , :, [$5]) +else + m4_if([$6], , :, [$6]) +fi +])# _LT_COMPILER_OPTION + +# Old name: +AU_ALIAS([AC_LIBTOOL_COMPILER_OPTION], [_LT_COMPILER_OPTION]) +dnl aclocal-1.4 backwards compatibility: +dnl AC_DEFUN([AC_LIBTOOL_COMPILER_OPTION], []) + + +# _LT_LINKER_OPTION(MESSAGE, VARIABLE-NAME, FLAGS, +# [ACTION-SUCCESS], [ACTION-FAILURE]) +# ---------------------------------------------------- +# Check whether the given linker option works +AC_DEFUN([_LT_LINKER_OPTION], +[m4_require([_LT_FILEUTILS_DEFAULTS])dnl +m4_require([_LT_DECL_SED])dnl +AC_CACHE_CHECK([$1], [$2], + [$2=no + save_LDFLAGS="$LDFLAGS" + LDFLAGS="$LDFLAGS $3" + echo "$lt_simple_link_test_code" > conftest.$ac_ext + if (eval $ac_link 2>conftest.err) && test -s conftest$ac_exeext; then + # The linker can only warn and ignore the option if not recognized + # So say no if there are warnings + if test -s conftest.err; then + # Append any errors to the config.log. + cat conftest.err 1>&AS_MESSAGE_LOG_FD + $ECHO "$_lt_linker_boilerplate" | $SED '/^$/d' > conftest.exp + $SED '/^$/d; /^ *+/d' conftest.err >conftest.er2 + if diff conftest.exp conftest.er2 >/dev/null; then + $2=yes + fi + else + $2=yes + fi + fi + $RM -r conftest* + LDFLAGS="$save_LDFLAGS" +]) + +if test x"[$]$2" = xyes; then + m4_if([$4], , :, [$4]) +else + m4_if([$5], , :, [$5]) +fi +])# _LT_LINKER_OPTION + +# Old name: +AU_ALIAS([AC_LIBTOOL_LINKER_OPTION], [_LT_LINKER_OPTION]) +dnl aclocal-1.4 backwards compatibility: +dnl AC_DEFUN([AC_LIBTOOL_LINKER_OPTION], []) + + +# LT_CMD_MAX_LEN +#--------------- +AC_DEFUN([LT_CMD_MAX_LEN], +[AC_REQUIRE([AC_CANONICAL_HOST])dnl +# find the maximum length of command line arguments +AC_MSG_CHECKING([the maximum length of command line arguments]) +AC_CACHE_VAL([lt_cv_sys_max_cmd_len], [dnl + i=0 + teststring="ABCD" + + case $build_os in + msdosdjgpp*) + # On DJGPP, this test can blow up pretty badly due to problems in libc + # (any single argument exceeding 2000 bytes causes a buffer overrun + # during glob expansion). Even if it were fixed, the result of this + # check would be larger than it should be. + lt_cv_sys_max_cmd_len=12288; # 12K is about right + ;; + + gnu*) + # Under GNU Hurd, this test is not required because there is + # no limit to the length of command line arguments. + # Libtool will interpret -1 as no limit whatsoever + lt_cv_sys_max_cmd_len=-1; + ;; + + cygwin* | mingw* | cegcc*) + # On Win9x/ME, this test blows up -- it succeeds, but takes + # about 5 minutes as the teststring grows exponentially. + # Worse, since 9x/ME are not pre-emptively multitasking, + # you end up with a "frozen" computer, even though with patience + # the test eventually succeeds (with a max line length of 256k). + # Instead, let's just punt: use the minimum linelength reported by + # all of the supported platforms: 8192 (on NT/2K/XP). + lt_cv_sys_max_cmd_len=8192; + ;; + + mint*) + # On MiNT this can take a long time and run out of memory. + lt_cv_sys_max_cmd_len=8192; + ;; + + amigaos*) + # On AmigaOS with pdksh, this test takes hours, literally. + # So we just punt and use a minimum line length of 8192. + lt_cv_sys_max_cmd_len=8192; + ;; + + netbsd* | freebsd* | openbsd* | darwin* | dragonfly*) + # This has been around since 386BSD, at least. Likely further. + if test -x /sbin/sysctl; then + lt_cv_sys_max_cmd_len=`/sbin/sysctl -n kern.argmax` + elif test -x /usr/sbin/sysctl; then + lt_cv_sys_max_cmd_len=`/usr/sbin/sysctl -n kern.argmax` + else + lt_cv_sys_max_cmd_len=65536 # usable default for all BSDs + fi + # And add a safety zone + lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \/ 4` + lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \* 3` + ;; + + interix*) + # We know the value 262144 and hardcode it with a safety zone (like BSD) + lt_cv_sys_max_cmd_len=196608 + ;; + + os2*) + # The test takes a long time on OS/2. + lt_cv_sys_max_cmd_len=8192 + ;; + + osf*) + # Dr. Hans Ekkehard Plesser reports seeing a kernel panic running configure + # due to this test when exec_disable_arg_limit is 1 on Tru64. It is not + # nice to cause kernel panics so lets avoid the loop below. + # First set a reasonable default. + lt_cv_sys_max_cmd_len=16384 + # + if test -x /sbin/sysconfig; then + case `/sbin/sysconfig -q proc exec_disable_arg_limit` in + *1*) lt_cv_sys_max_cmd_len=-1 ;; + esac + fi + ;; + sco3.2v5*) + lt_cv_sys_max_cmd_len=102400 + ;; + sysv5* | sco5v6* | sysv4.2uw2*) + kargmax=`grep ARG_MAX /etc/conf/cf.d/stune 2>/dev/null` + if test -n "$kargmax"; then + lt_cv_sys_max_cmd_len=`echo $kargmax | sed 's/.*[[ ]]//'` + else + lt_cv_sys_max_cmd_len=32768 + fi + ;; + *) + lt_cv_sys_max_cmd_len=`(getconf ARG_MAX) 2> /dev/null` + if test -n "$lt_cv_sys_max_cmd_len"; then + lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \/ 4` + lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \* 3` + else + # Make teststring a little bigger before we do anything with it. + # a 1K string should be a reasonable start. + for i in 1 2 3 4 5 6 7 8 ; do + teststring=$teststring$teststring + done + SHELL=${SHELL-${CONFIG_SHELL-/bin/sh}} + # If test is not a shell built-in, we'll probably end up computing a + # maximum length that is only half of the actual maximum length, but + # we can't tell. + while { test "X"`env echo "$teststring$teststring" 2>/dev/null` \ + = "X$teststring$teststring"; } >/dev/null 2>&1 && + test $i != 17 # 1/2 MB should be enough + do + i=`expr $i + 1` + teststring=$teststring$teststring + done + # Only check the string length outside the loop. + lt_cv_sys_max_cmd_len=`expr "X$teststring" : ".*" 2>&1` + teststring= + # Add a significant safety factor because C++ compilers can tack on + # massive amounts of additional arguments before passing them to the + # linker. It appears as though 1/2 is a usable value. + lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \/ 2` + fi + ;; + esac +]) +if test -n $lt_cv_sys_max_cmd_len ; then + AC_MSG_RESULT($lt_cv_sys_max_cmd_len) +else + AC_MSG_RESULT(none) +fi +max_cmd_len=$lt_cv_sys_max_cmd_len +_LT_DECL([], [max_cmd_len], [0], + [What is the maximum length of a command?]) +])# LT_CMD_MAX_LEN + +# Old name: +AU_ALIAS([AC_LIBTOOL_SYS_MAX_CMD_LEN], [LT_CMD_MAX_LEN]) +dnl aclocal-1.4 backwards compatibility: +dnl AC_DEFUN([AC_LIBTOOL_SYS_MAX_CMD_LEN], []) + + +# _LT_HEADER_DLFCN +# ---------------- +m4_defun([_LT_HEADER_DLFCN], +[AC_CHECK_HEADERS([dlfcn.h], [], [], [AC_INCLUDES_DEFAULT])dnl +])# _LT_HEADER_DLFCN + + +# _LT_TRY_DLOPEN_SELF (ACTION-IF-TRUE, ACTION-IF-TRUE-W-USCORE, +# ACTION-IF-FALSE, ACTION-IF-CROSS-COMPILING) +# ---------------------------------------------------------------- +m4_defun([_LT_TRY_DLOPEN_SELF], +[m4_require([_LT_HEADER_DLFCN])dnl +if test "$cross_compiling" = yes; then : + [$4] +else + lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2 + lt_status=$lt_dlunknown + cat > conftest.$ac_ext <<_LT_EOF +[#line $LINENO "configure" +#include "confdefs.h" + +#if HAVE_DLFCN_H +#include +#endif + +#include + +#ifdef RTLD_GLOBAL +# define LT_DLGLOBAL RTLD_GLOBAL +#else +# ifdef DL_GLOBAL +# define LT_DLGLOBAL DL_GLOBAL +# else +# define LT_DLGLOBAL 0 +# endif +#endif + +/* We may have to define LT_DLLAZY_OR_NOW in the command line if we + find out it does not work in some platform. */ +#ifndef LT_DLLAZY_OR_NOW +# ifdef RTLD_LAZY +# define LT_DLLAZY_OR_NOW RTLD_LAZY +# else +# ifdef DL_LAZY +# define LT_DLLAZY_OR_NOW DL_LAZY +# else +# ifdef RTLD_NOW +# define LT_DLLAZY_OR_NOW RTLD_NOW +# else +# ifdef DL_NOW +# define LT_DLLAZY_OR_NOW DL_NOW +# else +# define LT_DLLAZY_OR_NOW 0 +# endif +# endif +# endif +# endif +#endif + +/* When -fvisbility=hidden is used, assume the code has been annotated + correspondingly for the symbols needed. */ +#if defined(__GNUC__) && (((__GNUC__ == 3) && (__GNUC_MINOR__ >= 3)) || (__GNUC__ > 3)) +int fnord () __attribute__((visibility("default"))); +#endif + +int fnord () { return 42; } +int main () +{ + void *self = dlopen (0, LT_DLGLOBAL|LT_DLLAZY_OR_NOW); + int status = $lt_dlunknown; + + if (self) + { + if (dlsym (self,"fnord")) status = $lt_dlno_uscore; + else + { + if (dlsym( self,"_fnord")) status = $lt_dlneed_uscore; + else puts (dlerror ()); + } + /* dlclose (self); */ + } + else + puts (dlerror ()); + + return status; +}] +_LT_EOF + if AC_TRY_EVAL(ac_link) && test -s conftest${ac_exeext} 2>/dev/null; then + (./conftest; exit; ) >&AS_MESSAGE_LOG_FD 2>/dev/null + lt_status=$? + case x$lt_status in + x$lt_dlno_uscore) $1 ;; + x$lt_dlneed_uscore) $2 ;; + x$lt_dlunknown|x*) $3 ;; + esac + else : + # compilation failed + $3 + fi +fi +rm -fr conftest* +])# _LT_TRY_DLOPEN_SELF + + +# LT_SYS_DLOPEN_SELF +# ------------------ +AC_DEFUN([LT_SYS_DLOPEN_SELF], +[m4_require([_LT_HEADER_DLFCN])dnl +if test "x$enable_dlopen" != xyes; then + enable_dlopen=unknown + enable_dlopen_self=unknown + enable_dlopen_self_static=unknown +else + lt_cv_dlopen=no + lt_cv_dlopen_libs= + + case $host_os in + beos*) + lt_cv_dlopen="load_add_on" + lt_cv_dlopen_libs= + lt_cv_dlopen_self=yes + ;; + + mingw* | pw32* | cegcc*) + lt_cv_dlopen="LoadLibrary" + lt_cv_dlopen_libs= + ;; + + cygwin*) + lt_cv_dlopen="dlopen" + lt_cv_dlopen_libs= + ;; + + darwin*) + # if libdl is installed we need to link against it + AC_CHECK_LIB([dl], [dlopen], + [lt_cv_dlopen="dlopen" lt_cv_dlopen_libs="-ldl"],[ + lt_cv_dlopen="dyld" + lt_cv_dlopen_libs= + lt_cv_dlopen_self=yes + ]) + ;; + + *) + AC_CHECK_FUNC([shl_load], + [lt_cv_dlopen="shl_load"], + [AC_CHECK_LIB([dld], [shl_load], + [lt_cv_dlopen="shl_load" lt_cv_dlopen_libs="-ldld"], + [AC_CHECK_FUNC([dlopen], + [lt_cv_dlopen="dlopen"], + [AC_CHECK_LIB([dl], [dlopen], + [lt_cv_dlopen="dlopen" lt_cv_dlopen_libs="-ldl"], + [AC_CHECK_LIB([svld], [dlopen], + [lt_cv_dlopen="dlopen" lt_cv_dlopen_libs="-lsvld"], + [AC_CHECK_LIB([dld], [dld_link], + [lt_cv_dlopen="dld_link" lt_cv_dlopen_libs="-ldld"]) + ]) + ]) + ]) + ]) + ]) + ;; + esac + + if test "x$lt_cv_dlopen" != xno; then + enable_dlopen=yes + else + enable_dlopen=no + fi + + case $lt_cv_dlopen in + dlopen) + save_CPPFLAGS="$CPPFLAGS" + test "x$ac_cv_header_dlfcn_h" = xyes && CPPFLAGS="$CPPFLAGS -DHAVE_DLFCN_H" + + save_LDFLAGS="$LDFLAGS" + wl=$lt_prog_compiler_wl eval LDFLAGS=\"\$LDFLAGS $export_dynamic_flag_spec\" + + save_LIBS="$LIBS" + LIBS="$lt_cv_dlopen_libs $LIBS" + + AC_CACHE_CHECK([whether a program can dlopen itself], + lt_cv_dlopen_self, [dnl + _LT_TRY_DLOPEN_SELF( + lt_cv_dlopen_self=yes, lt_cv_dlopen_self=yes, + lt_cv_dlopen_self=no, lt_cv_dlopen_self=cross) + ]) + + if test "x$lt_cv_dlopen_self" = xyes; then + wl=$lt_prog_compiler_wl eval LDFLAGS=\"\$LDFLAGS $lt_prog_compiler_static\" + AC_CACHE_CHECK([whether a statically linked program can dlopen itself], + lt_cv_dlopen_self_static, [dnl + _LT_TRY_DLOPEN_SELF( + lt_cv_dlopen_self_static=yes, lt_cv_dlopen_self_static=yes, + lt_cv_dlopen_self_static=no, lt_cv_dlopen_self_static=cross) + ]) + fi + + CPPFLAGS="$save_CPPFLAGS" + LDFLAGS="$save_LDFLAGS" + LIBS="$save_LIBS" + ;; + esac + + case $lt_cv_dlopen_self in + yes|no) enable_dlopen_self=$lt_cv_dlopen_self ;; + *) enable_dlopen_self=unknown ;; + esac + + case $lt_cv_dlopen_self_static in + yes|no) enable_dlopen_self_static=$lt_cv_dlopen_self_static ;; + *) enable_dlopen_self_static=unknown ;; + esac +fi +_LT_DECL([dlopen_support], [enable_dlopen], [0], + [Whether dlopen is supported]) +_LT_DECL([dlopen_self], [enable_dlopen_self], [0], + [Whether dlopen of programs is supported]) +_LT_DECL([dlopen_self_static], [enable_dlopen_self_static], [0], + [Whether dlopen of statically linked programs is supported]) +])# LT_SYS_DLOPEN_SELF + +# Old name: +AU_ALIAS([AC_LIBTOOL_DLOPEN_SELF], [LT_SYS_DLOPEN_SELF]) +dnl aclocal-1.4 backwards compatibility: +dnl AC_DEFUN([AC_LIBTOOL_DLOPEN_SELF], []) + + +# _LT_COMPILER_C_O([TAGNAME]) +# --------------------------- +# Check to see if options -c and -o are simultaneously supported by compiler. +# This macro does not hard code the compiler like AC_PROG_CC_C_O. +m4_defun([_LT_COMPILER_C_O], +[m4_require([_LT_DECL_SED])dnl +m4_require([_LT_FILEUTILS_DEFAULTS])dnl +m4_require([_LT_TAG_COMPILER])dnl +AC_CACHE_CHECK([if $compiler supports -c -o file.$ac_objext], + [_LT_TAGVAR(lt_cv_prog_compiler_c_o, $1)], + [_LT_TAGVAR(lt_cv_prog_compiler_c_o, $1)=no + $RM -r conftest 2>/dev/null + mkdir conftest + cd conftest + mkdir out + echo "$lt_simple_compile_test_code" > conftest.$ac_ext + + lt_compiler_flag="-o out/conftest2.$ac_objext" + # Insert the option either (1) after the last *FLAGS variable, or + # (2) before a word containing "conftest.", or (3) at the end. + # Note that $ac_compile itself does not contain backslashes and begins + # with a dollar sign (not a hyphen), so the echo should work correctly. + lt_compile=`echo "$ac_compile" | $SED \ + -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \ + -e 's: [[^ ]]*conftest\.: $lt_compiler_flag&:; t' \ + -e 's:$: $lt_compiler_flag:'` + (eval echo "\"\$as_me:$LINENO: $lt_compile\"" >&AS_MESSAGE_LOG_FD) + (eval "$lt_compile" 2>out/conftest.err) + ac_status=$? + cat out/conftest.err >&AS_MESSAGE_LOG_FD + echo "$as_me:$LINENO: \$? = $ac_status" >&AS_MESSAGE_LOG_FD + if (exit $ac_status) && test -s out/conftest2.$ac_objext + then + # The compiler can only warn and ignore the option if not recognized + # So say no if there are warnings + $ECHO "$_lt_compiler_boilerplate" | $SED '/^$/d' > out/conftest.exp + $SED '/^$/d; /^ *+/d' out/conftest.err >out/conftest.er2 + if test ! -s out/conftest.er2 || diff out/conftest.exp out/conftest.er2 >/dev/null; then + _LT_TAGVAR(lt_cv_prog_compiler_c_o, $1)=yes + fi + fi + chmod u+w . 2>&AS_MESSAGE_LOG_FD + $RM conftest* + # SGI C++ compiler will create directory out/ii_files/ for + # template instantiation + test -d out/ii_files && $RM out/ii_files/* && rmdir out/ii_files + $RM out/* && rmdir out + cd .. + $RM -r conftest + $RM conftest* +]) +_LT_TAGDECL([compiler_c_o], [lt_cv_prog_compiler_c_o], [1], + [Does compiler simultaneously support -c and -o options?]) +])# _LT_COMPILER_C_O + + +# _LT_COMPILER_FILE_LOCKS([TAGNAME]) +# ---------------------------------- +# Check to see if we can do hard links to lock some files if needed +m4_defun([_LT_COMPILER_FILE_LOCKS], +[m4_require([_LT_ENABLE_LOCK])dnl +m4_require([_LT_FILEUTILS_DEFAULTS])dnl +_LT_COMPILER_C_O([$1]) + +hard_links="nottested" +if test "$_LT_TAGVAR(lt_cv_prog_compiler_c_o, $1)" = no && test "$need_locks" != no; then + # do not overwrite the value of need_locks provided by the user + AC_MSG_CHECKING([if we can lock with hard links]) + hard_links=yes + $RM conftest* + ln conftest.a conftest.b 2>/dev/null && hard_links=no + touch conftest.a + ln conftest.a conftest.b 2>&5 || hard_links=no + ln conftest.a conftest.b 2>/dev/null && hard_links=no + AC_MSG_RESULT([$hard_links]) + if test "$hard_links" = no; then + AC_MSG_WARN([`$CC' does not support `-c -o', so `make -j' may be unsafe]) + need_locks=warn + fi +else + need_locks=no +fi +_LT_DECL([], [need_locks], [1], [Must we lock files when doing compilation?]) +])# _LT_COMPILER_FILE_LOCKS + + +# _LT_CHECK_OBJDIR +# ---------------- +m4_defun([_LT_CHECK_OBJDIR], +[AC_CACHE_CHECK([for objdir], [lt_cv_objdir], +[rm -f .libs 2>/dev/null +mkdir .libs 2>/dev/null +if test -d .libs; then + lt_cv_objdir=.libs +else + # MS-DOS does not allow filenames that begin with a dot. + lt_cv_objdir=_libs +fi +rmdir .libs 2>/dev/null]) +objdir=$lt_cv_objdir +_LT_DECL([], [objdir], [0], + [The name of the directory that contains temporary libtool files])dnl +m4_pattern_allow([LT_OBJDIR])dnl +AC_DEFINE_UNQUOTED(LT_OBJDIR, "$lt_cv_objdir/", + [Define to the sub-directory in which libtool stores uninstalled libraries.]) +])# _LT_CHECK_OBJDIR + + +# _LT_LINKER_HARDCODE_LIBPATH([TAGNAME]) +# -------------------------------------- +# Check hardcoding attributes. +m4_defun([_LT_LINKER_HARDCODE_LIBPATH], +[AC_MSG_CHECKING([how to hardcode library paths into programs]) +_LT_TAGVAR(hardcode_action, $1)= +if test -n "$_LT_TAGVAR(hardcode_libdir_flag_spec, $1)" || + test -n "$_LT_TAGVAR(runpath_var, $1)" || + test "X$_LT_TAGVAR(hardcode_automatic, $1)" = "Xyes" ; then + + # We can hardcode non-existent directories. + if test "$_LT_TAGVAR(hardcode_direct, $1)" != no && + # If the only mechanism to avoid hardcoding is shlibpath_var, we + # have to relink, otherwise we might link with an installed library + # when we should be linking with a yet-to-be-installed one + ## test "$_LT_TAGVAR(hardcode_shlibpath_var, $1)" != no && + test "$_LT_TAGVAR(hardcode_minus_L, $1)" != no; then + # Linking always hardcodes the temporary library directory. + _LT_TAGVAR(hardcode_action, $1)=relink + else + # We can link without hardcoding, and we can hardcode nonexisting dirs. + _LT_TAGVAR(hardcode_action, $1)=immediate + fi +else + # We cannot hardcode anything, or else we can only hardcode existing + # directories. + _LT_TAGVAR(hardcode_action, $1)=unsupported +fi +AC_MSG_RESULT([$_LT_TAGVAR(hardcode_action, $1)]) + +if test "$_LT_TAGVAR(hardcode_action, $1)" = relink || + test "$_LT_TAGVAR(inherit_rpath, $1)" = yes; then + # Fast installation is not supported + enable_fast_install=no +elif test "$shlibpath_overrides_runpath" = yes || + test "$enable_shared" = no; then + # Fast installation is not necessary + enable_fast_install=needless +fi +_LT_TAGDECL([], [hardcode_action], [0], + [How to hardcode a shared library path into an executable]) +])# _LT_LINKER_HARDCODE_LIBPATH + + +# _LT_CMD_STRIPLIB +# ---------------- +m4_defun([_LT_CMD_STRIPLIB], +[m4_require([_LT_DECL_EGREP]) +striplib= +old_striplib= +AC_MSG_CHECKING([whether stripping libraries is possible]) +if test -n "$STRIP" && $STRIP -V 2>&1 | $GREP "GNU strip" >/dev/null; then + test -z "$old_striplib" && old_striplib="$STRIP --strip-debug" + test -z "$striplib" && striplib="$STRIP --strip-unneeded" + AC_MSG_RESULT([yes]) +else +# FIXME - insert some real tests, host_os isn't really good enough + case $host_os in + darwin*) + if test -n "$STRIP" ; then + striplib="$STRIP -x" + old_striplib="$STRIP -S" + AC_MSG_RESULT([yes]) + else + AC_MSG_RESULT([no]) + fi + ;; + *) + AC_MSG_RESULT([no]) + ;; + esac +fi +_LT_DECL([], [old_striplib], [1], [Commands to strip libraries]) +_LT_DECL([], [striplib], [1]) +])# _LT_CMD_STRIPLIB + + +# _LT_SYS_DYNAMIC_LINKER([TAG]) +# ----------------------------- +# PORTME Fill in your ld.so characteristics +m4_defun([_LT_SYS_DYNAMIC_LINKER], +[AC_REQUIRE([AC_CANONICAL_HOST])dnl +m4_require([_LT_DECL_EGREP])dnl +m4_require([_LT_FILEUTILS_DEFAULTS])dnl +m4_require([_LT_DECL_OBJDUMP])dnl +m4_require([_LT_DECL_SED])dnl +m4_require([_LT_CHECK_SHELL_FEATURES])dnl +AC_MSG_CHECKING([dynamic linker characteristics]) +m4_if([$1], + [], [ +if test "$GCC" = yes; then + case $host_os in + darwin*) lt_awk_arg="/^libraries:/,/LR/" ;; + *) lt_awk_arg="/^libraries:/" ;; + esac + case $host_os in + mingw* | cegcc*) lt_sed_strip_eq="s,=\([[A-Za-z]]:\),\1,g" ;; + *) lt_sed_strip_eq="s,=/,/,g" ;; + esac + lt_search_path_spec=`$CC -print-search-dirs | awk $lt_awk_arg | $SED -e "s/^libraries://" -e $lt_sed_strip_eq` + case $lt_search_path_spec in + *\;*) + # if the path contains ";" then we assume it to be the separator + # otherwise default to the standard path separator (i.e. ":") - it is + # assumed that no part of a normal pathname contains ";" but that should + # okay in the real world where ";" in dirpaths is itself problematic. + lt_search_path_spec=`$ECHO "$lt_search_path_spec" | $SED 's/;/ /g'` + ;; + *) + lt_search_path_spec=`$ECHO "$lt_search_path_spec" | $SED "s/$PATH_SEPARATOR/ /g"` + ;; + esac + # Ok, now we have the path, separated by spaces, we can step through it + # and add multilib dir if necessary. + lt_tmp_lt_search_path_spec= + lt_multi_os_dir=`$CC $CPPFLAGS $CFLAGS $LDFLAGS -print-multi-os-directory 2>/dev/null` + for lt_sys_path in $lt_search_path_spec; do + if test -d "$lt_sys_path/$lt_multi_os_dir"; then + lt_tmp_lt_search_path_spec="$lt_tmp_lt_search_path_spec $lt_sys_path/$lt_multi_os_dir" + else + test -d "$lt_sys_path" && \ + lt_tmp_lt_search_path_spec="$lt_tmp_lt_search_path_spec $lt_sys_path" + fi + done + lt_search_path_spec=`$ECHO "$lt_tmp_lt_search_path_spec" | awk ' +BEGIN {RS=" "; FS="/|\n";} { + lt_foo=""; + lt_count=0; + for (lt_i = NF; lt_i > 0; lt_i--) { + if ($lt_i != "" && $lt_i != ".") { + if ($lt_i == "..") { + lt_count++; + } else { + if (lt_count == 0) { + lt_foo="/" $lt_i lt_foo; + } else { + lt_count--; + } + } + } + } + if (lt_foo != "") { lt_freq[[lt_foo]]++; } + if (lt_freq[[lt_foo]] == 1) { print lt_foo; } +}'` + # AWK program above erroneously prepends '/' to C:/dos/paths + # for these hosts. + case $host_os in + mingw* | cegcc*) lt_search_path_spec=`$ECHO "$lt_search_path_spec" |\ + $SED 's,/\([[A-Za-z]]:\),\1,g'` ;; + esac + sys_lib_search_path_spec=`$ECHO "$lt_search_path_spec" | $lt_NL2SP` +else + sys_lib_search_path_spec="/lib /usr/lib /usr/local/lib" +fi]) +library_names_spec= +libname_spec='lib$name' +soname_spec= +shrext_cmds=".so" +postinstall_cmds= +postuninstall_cmds= +finish_cmds= +finish_eval= +shlibpath_var= +shlibpath_overrides_runpath=unknown +version_type=none +dynamic_linker="$host_os ld.so" +sys_lib_dlsearch_path_spec="/lib /usr/lib" +need_lib_prefix=unknown +hardcode_into_libs=no + +# when you set need_version to no, make sure it does not cause -set_version +# flags to be left without arguments +need_version=unknown + +case $host_os in +aix3*) + version_type=linux # correct to gnu/linux during the next big refactor + library_names_spec='${libname}${release}${shared_ext}$versuffix $libname.a' + shlibpath_var=LIBPATH + + # AIX 3 has no versioning support, so we append a major version to the name. + soname_spec='${libname}${release}${shared_ext}$major' + ;; + +aix[[4-9]]*) + version_type=linux # correct to gnu/linux during the next big refactor + need_lib_prefix=no + need_version=no + hardcode_into_libs=yes + if test "$host_cpu" = ia64; then + # AIX 5 supports IA64 + library_names_spec='${libname}${release}${shared_ext}$major ${libname}${release}${shared_ext}$versuffix $libname${shared_ext}' + shlibpath_var=LD_LIBRARY_PATH + else + # With GCC up to 2.95.x, collect2 would create an import file + # for dependence libraries. The import file would start with + # the line `#! .'. This would cause the generated library to + # depend on `.', always an invalid library. This was fixed in + # development snapshots of GCC prior to 3.0. + case $host_os in + aix4 | aix4.[[01]] | aix4.[[01]].*) + if { echo '#if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 97)' + echo ' yes ' + echo '#endif'; } | ${CC} -E - | $GREP yes > /dev/null; then + : + else + can_build_shared=no + fi + ;; + esac + # AIX (on Power*) has no versioning support, so currently we can not hardcode correct + # soname into executable. Probably we can add versioning support to + # collect2, so additional links can be useful in future. + if test "$aix_use_runtimelinking" = yes; then + # If using run time linking (on AIX 4.2 or later) use lib.so + # instead of lib.a to let people know that these are not + # typical AIX shared libraries. + library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}' + else + # We preserve .a as extension for shared libraries through AIX4.2 + # and later when we are not doing run time linking. + library_names_spec='${libname}${release}.a $libname.a' + soname_spec='${libname}${release}${shared_ext}$major' + fi + shlibpath_var=LIBPATH + fi + ;; + +amigaos*) + case $host_cpu in + powerpc) + # Since July 2007 AmigaOS4 officially supports .so libraries. + # When compiling the executable, add -use-dynld -Lsobjs: to the compileline. + library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}' + ;; + m68k) + library_names_spec='$libname.ixlibrary $libname.a' + # Create ${libname}_ixlibrary.a entries in /sys/libs. + finish_eval='for lib in `ls $libdir/*.ixlibrary 2>/dev/null`; do libname=`func_echo_all "$lib" | $SED '\''s%^.*/\([[^/]]*\)\.ixlibrary$%\1%'\''`; test $RM /sys/libs/${libname}_ixlibrary.a; $show "cd /sys/libs && $LN_S $lib ${libname}_ixlibrary.a"; cd /sys/libs && $LN_S $lib ${libname}_ixlibrary.a || exit 1; done' + ;; + esac + ;; + +beos*) + library_names_spec='${libname}${shared_ext}' + dynamic_linker="$host_os ld.so" + shlibpath_var=LIBRARY_PATH + ;; + +bsdi[[45]]*) + version_type=linux # correct to gnu/linux during the next big refactor + need_version=no + library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}' + soname_spec='${libname}${release}${shared_ext}$major' + finish_cmds='PATH="\$PATH:/sbin" ldconfig $libdir' + shlibpath_var=LD_LIBRARY_PATH + sys_lib_search_path_spec="/shlib /usr/lib /usr/X11/lib /usr/contrib/lib /lib /usr/local/lib" + sys_lib_dlsearch_path_spec="/shlib /usr/lib /usr/local/lib" + # the default ld.so.conf also contains /usr/contrib/lib and + # /usr/X11R6/lib (/usr/X11 is a link to /usr/X11R6), but let us allow + # libtool to hard-code these into programs + ;; + +cygwin* | mingw* | pw32* | cegcc*) + version_type=windows + shrext_cmds=".dll" + need_version=no + need_lib_prefix=no + + case $GCC,$cc_basename in + yes,*) + # gcc + library_names_spec='$libname.dll.a' + # DLL is installed to $(libdir)/../bin by postinstall_cmds + postinstall_cmds='base_file=`basename \${file}`~ + dlpath=`$SHELL 2>&1 -c '\''. $dir/'\''\${base_file}'\''i; echo \$dlname'\''`~ + dldir=$destdir/`dirname \$dlpath`~ + test -d \$dldir || mkdir -p \$dldir~ + $install_prog $dir/$dlname \$dldir/$dlname~ + chmod a+x \$dldir/$dlname~ + if test -n '\''$stripme'\'' && test -n '\''$striplib'\''; then + eval '\''$striplib \$dldir/$dlname'\'' || exit \$?; + fi' + postuninstall_cmds='dldll=`$SHELL 2>&1 -c '\''. $file; echo \$dlname'\''`~ + dlpath=$dir/\$dldll~ + $RM \$dlpath' + shlibpath_overrides_runpath=yes + + case $host_os in + cygwin*) + # Cygwin DLLs use 'cyg' prefix rather than 'lib' + soname_spec='`echo ${libname} | sed -e 's/^lib/cyg/'``echo ${release} | $SED -e 's/[[.]]/-/g'`${versuffix}${shared_ext}' +m4_if([$1], [],[ + sys_lib_search_path_spec="$sys_lib_search_path_spec /usr/lib/w32api"]) + ;; + mingw* | cegcc*) + # MinGW DLLs use traditional 'lib' prefix + soname_spec='${libname}`echo ${release} | $SED -e 's/[[.]]/-/g'`${versuffix}${shared_ext}' + ;; + pw32*) + # pw32 DLLs use 'pw' prefix rather than 'lib' + library_names_spec='`echo ${libname} | sed -e 's/^lib/pw/'``echo ${release} | $SED -e 's/[[.]]/-/g'`${versuffix}${shared_ext}' + ;; + esac + dynamic_linker='Win32 ld.exe' + ;; + + *,cl*) + # Native MSVC + libname_spec='$name' + soname_spec='${libname}`echo ${release} | $SED -e 's/[[.]]/-/g'`${versuffix}${shared_ext}' + library_names_spec='${libname}.dll.lib' + + case $build_os in + mingw*) + sys_lib_search_path_spec= + lt_save_ifs=$IFS + IFS=';' + for lt_path in $LIB + do + IFS=$lt_save_ifs + # Let DOS variable expansion print the short 8.3 style file name. + lt_path=`cd "$lt_path" 2>/dev/null && cmd //C "for %i in (".") do @echo %~si"` + sys_lib_search_path_spec="$sys_lib_search_path_spec $lt_path" + done + IFS=$lt_save_ifs + # Convert to MSYS style. + sys_lib_search_path_spec=`$ECHO "$sys_lib_search_path_spec" | sed -e 's|\\\\|/|g' -e 's| \\([[a-zA-Z]]\\):| /\\1|g' -e 's|^ ||'` + ;; + cygwin*) + # Convert to unix form, then to dos form, then back to unix form + # but this time dos style (no spaces!) so that the unix form looks + # like /cygdrive/c/PROGRA~1:/cygdr... + sys_lib_search_path_spec=`cygpath --path --unix "$LIB"` + sys_lib_search_path_spec=`cygpath --path --dos "$sys_lib_search_path_spec" 2>/dev/null` + sys_lib_search_path_spec=`cygpath --path --unix "$sys_lib_search_path_spec" | $SED -e "s/$PATH_SEPARATOR/ /g"` + ;; + *) + sys_lib_search_path_spec="$LIB" + if $ECHO "$sys_lib_search_path_spec" | [$GREP ';[c-zC-Z]:/' >/dev/null]; then + # It is most probably a Windows format PATH. + sys_lib_search_path_spec=`$ECHO "$sys_lib_search_path_spec" | $SED -e 's/;/ /g'` + else + sys_lib_search_path_spec=`$ECHO "$sys_lib_search_path_spec" | $SED -e "s/$PATH_SEPARATOR/ /g"` + fi + # FIXME: find the short name or the path components, as spaces are + # common. (e.g. "Program Files" -> "PROGRA~1") + ;; + esac + + # DLL is installed to $(libdir)/../bin by postinstall_cmds + postinstall_cmds='base_file=`basename \${file}`~ + dlpath=`$SHELL 2>&1 -c '\''. $dir/'\''\${base_file}'\''i; echo \$dlname'\''`~ + dldir=$destdir/`dirname \$dlpath`~ + test -d \$dldir || mkdir -p \$dldir~ + $install_prog $dir/$dlname \$dldir/$dlname' + postuninstall_cmds='dldll=`$SHELL 2>&1 -c '\''. $file; echo \$dlname'\''`~ + dlpath=$dir/\$dldll~ + $RM \$dlpath' + shlibpath_overrides_runpath=yes + dynamic_linker='Win32 link.exe' + ;; + + *) + # Assume MSVC wrapper + library_names_spec='${libname}`echo ${release} | $SED -e 's/[[.]]/-/g'`${versuffix}${shared_ext} $libname.lib' + dynamic_linker='Win32 ld.exe' + ;; + esac + # FIXME: first we should search . and the directory the executable is in + shlibpath_var=PATH + ;; + +darwin* | rhapsody*) + dynamic_linker="$host_os dyld" + version_type=darwin + need_lib_prefix=no + need_version=no + library_names_spec='${libname}${release}${major}$shared_ext ${libname}$shared_ext' + soname_spec='${libname}${release}${major}$shared_ext' + shlibpath_overrides_runpath=yes + shlibpath_var=DYLD_LIBRARY_PATH + shrext_cmds='`test .$module = .yes && echo .so || echo .dylib`' +m4_if([$1], [],[ + sys_lib_search_path_spec="$sys_lib_search_path_spec /usr/local/lib"]) + sys_lib_dlsearch_path_spec='/usr/local/lib /lib /usr/lib' + ;; + +dgux*) + version_type=linux # correct to gnu/linux during the next big refactor + need_lib_prefix=no + need_version=no + library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname$shared_ext' + soname_spec='${libname}${release}${shared_ext}$major' + shlibpath_var=LD_LIBRARY_PATH + ;; + +freebsd* | dragonfly*) + # DragonFly does not have aout. When/if they implement a new + # versioning mechanism, adjust this. + if test -x /usr/bin/objformat; then + objformat=`/usr/bin/objformat` + else + case $host_os in + freebsd[[23]].*) objformat=aout ;; + *) objformat=elf ;; + esac + fi + version_type=freebsd-$objformat + case $version_type in + freebsd-elf*) + library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext} $libname${shared_ext}' + need_version=no + need_lib_prefix=no + ;; + freebsd-*) + library_names_spec='${libname}${release}${shared_ext}$versuffix $libname${shared_ext}$versuffix' + need_version=yes + ;; + esac + shlibpath_var=LD_LIBRARY_PATH + case $host_os in + freebsd2.*) + shlibpath_overrides_runpath=yes + ;; + freebsd3.[[01]]* | freebsdelf3.[[01]]*) + shlibpath_overrides_runpath=yes + hardcode_into_libs=yes + ;; + freebsd3.[[2-9]]* | freebsdelf3.[[2-9]]* | \ + freebsd4.[[0-5]] | freebsdelf4.[[0-5]] | freebsd4.1.1 | freebsdelf4.1.1) + shlibpath_overrides_runpath=no + hardcode_into_libs=yes + ;; + *) # from 4.6 on, and DragonFly + shlibpath_overrides_runpath=yes + hardcode_into_libs=yes + ;; + esac + ;; + +gnu*) + version_type=linux # correct to gnu/linux during the next big refactor + need_lib_prefix=no + need_version=no + library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}${major} ${libname}${shared_ext}' + soname_spec='${libname}${release}${shared_ext}$major' + shlibpath_var=LD_LIBRARY_PATH + shlibpath_overrides_runpath=no + hardcode_into_libs=yes + ;; + +haiku*) + version_type=linux # correct to gnu/linux during the next big refactor + need_lib_prefix=no + need_version=no + dynamic_linker="$host_os runtime_loader" + library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}${major} ${libname}${shared_ext}' + soname_spec='${libname}${release}${shared_ext}$major' + shlibpath_var=LIBRARY_PATH + shlibpath_overrides_runpath=yes + sys_lib_dlsearch_path_spec='/boot/home/config/lib /boot/common/lib /boot/system/lib' + hardcode_into_libs=yes + ;; + +hpux9* | hpux10* | hpux11*) + # Give a soname corresponding to the major version so that dld.sl refuses to + # link against other versions. + version_type=sunos + need_lib_prefix=no + need_version=no + case $host_cpu in + ia64*) + shrext_cmds='.so' + hardcode_into_libs=yes + dynamic_linker="$host_os dld.so" + shlibpath_var=LD_LIBRARY_PATH + shlibpath_overrides_runpath=yes # Unless +noenvvar is specified. + library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}' + soname_spec='${libname}${release}${shared_ext}$major' + if test "X$HPUX_IA64_MODE" = X32; then + sys_lib_search_path_spec="/usr/lib/hpux32 /usr/local/lib/hpux32 /usr/local/lib" + else + sys_lib_search_path_spec="/usr/lib/hpux64 /usr/local/lib/hpux64" + fi + sys_lib_dlsearch_path_spec=$sys_lib_search_path_spec + ;; + hppa*64*) + shrext_cmds='.sl' + hardcode_into_libs=yes + dynamic_linker="$host_os dld.sl" + shlibpath_var=LD_LIBRARY_PATH # How should we handle SHLIB_PATH + shlibpath_overrides_runpath=yes # Unless +noenvvar is specified. + library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}' + soname_spec='${libname}${release}${shared_ext}$major' + sys_lib_search_path_spec="/usr/lib/pa20_64 /usr/ccs/lib/pa20_64" + sys_lib_dlsearch_path_spec=$sys_lib_search_path_spec + ;; + *) + shrext_cmds='.sl' + dynamic_linker="$host_os dld.sl" + shlibpath_var=SHLIB_PATH + shlibpath_overrides_runpath=no # +s is required to enable SHLIB_PATH + library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}' + soname_spec='${libname}${release}${shared_ext}$major' + ;; + esac + # HP-UX runs *really* slowly unless shared libraries are mode 555, ... + postinstall_cmds='chmod 555 $lib' + # or fails outright, so override atomically: + install_override_mode=555 + ;; + +interix[[3-9]]*) + version_type=linux # correct to gnu/linux during the next big refactor + need_lib_prefix=no + need_version=no + library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major ${libname}${shared_ext}' + soname_spec='${libname}${release}${shared_ext}$major' + dynamic_linker='Interix 3.x ld.so.1 (PE, like ELF)' + shlibpath_var=LD_LIBRARY_PATH + shlibpath_overrides_runpath=no + hardcode_into_libs=yes + ;; + +irix5* | irix6* | nonstopux*) + case $host_os in + nonstopux*) version_type=nonstopux ;; + *) + if test "$lt_cv_prog_gnu_ld" = yes; then + version_type=linux # correct to gnu/linux during the next big refactor + else + version_type=irix + fi ;; + esac + need_lib_prefix=no + need_version=no + soname_spec='${libname}${release}${shared_ext}$major' + library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major ${libname}${release}${shared_ext} $libname${shared_ext}' + case $host_os in + irix5* | nonstopux*) + libsuff= shlibsuff= + ;; + *) + case $LD in # libtool.m4 will add one of these switches to LD + *-32|*"-32 "|*-melf32bsmip|*"-melf32bsmip ") + libsuff= shlibsuff= libmagic=32-bit;; + *-n32|*"-n32 "|*-melf32bmipn32|*"-melf32bmipn32 ") + libsuff=32 shlibsuff=N32 libmagic=N32;; + *-64|*"-64 "|*-melf64bmip|*"-melf64bmip ") + libsuff=64 shlibsuff=64 libmagic=64-bit;; + *) libsuff= shlibsuff= libmagic=never-match;; + esac + ;; + esac + shlibpath_var=LD_LIBRARY${shlibsuff}_PATH + shlibpath_overrides_runpath=no + sys_lib_search_path_spec="/usr/lib${libsuff} /lib${libsuff} /usr/local/lib${libsuff}" + sys_lib_dlsearch_path_spec="/usr/lib${libsuff} /lib${libsuff}" + hardcode_into_libs=yes + ;; + +# No shared lib support for Linux oldld, aout, or coff. +linux*oldld* | linux*aout* | linux*coff*) + dynamic_linker=no + ;; + +# This must be glibc/ELF. +linux* | k*bsd*-gnu | kopensolaris*-gnu) + version_type=linux # correct to gnu/linux during the next big refactor + need_lib_prefix=no + need_version=no + library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}' + soname_spec='${libname}${release}${shared_ext}$major' + finish_cmds='PATH="\$PATH:/sbin" ldconfig -n $libdir' + shlibpath_var=LD_LIBRARY_PATH + shlibpath_overrides_runpath=no + + # Some binutils ld are patched to set DT_RUNPATH + AC_CACHE_VAL([lt_cv_shlibpath_overrides_runpath], + [lt_cv_shlibpath_overrides_runpath=no + save_LDFLAGS=$LDFLAGS + save_libdir=$libdir + eval "libdir=/foo; wl=\"$_LT_TAGVAR(lt_prog_compiler_wl, $1)\"; \ + LDFLAGS=\"\$LDFLAGS $_LT_TAGVAR(hardcode_libdir_flag_spec, $1)\"" + AC_LINK_IFELSE([AC_LANG_PROGRAM([],[])], + [AS_IF([ ($OBJDUMP -p conftest$ac_exeext) 2>/dev/null | grep "RUNPATH.*$libdir" >/dev/null], + [lt_cv_shlibpath_overrides_runpath=yes])]) + LDFLAGS=$save_LDFLAGS + libdir=$save_libdir + ]) + shlibpath_overrides_runpath=$lt_cv_shlibpath_overrides_runpath + + # This implies no fast_install, which is unacceptable. + # Some rework will be needed to allow for fast_install + # before this can be enabled. + hardcode_into_libs=yes + + # Append ld.so.conf contents to the search path + if test -f /etc/ld.so.conf; then + lt_ld_extra=`awk '/^include / { system(sprintf("cd /etc; cat %s 2>/dev/null", \[$]2)); skip = 1; } { if (!skip) print \[$]0; skip = 0; }' < /etc/ld.so.conf | $SED -e 's/#.*//;/^[ ]*hwcap[ ]/d;s/[:, ]/ /g;s/=[^=]*$//;s/=[^= ]* / /g;s/"//g;/^$/d' | tr '\n' ' '` + sys_lib_dlsearch_path_spec="/lib /usr/lib $lt_ld_extra" + fi + + # We used to test for /lib/ld.so.1 and disable shared libraries on + # powerpc, because MkLinux only supported shared libraries with the + # GNU dynamic linker. Since this was broken with cross compilers, + # most powerpc-linux boxes support dynamic linking these days and + # people can always --disable-shared, the test was removed, and we + # assume the GNU/Linux dynamic linker is in use. + dynamic_linker='GNU/Linux ld.so' + ;; + +netbsd*) + version_type=sunos + need_lib_prefix=no + need_version=no + if echo __ELF__ | $CC -E - | $GREP __ELF__ >/dev/null; then + library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${shared_ext}$versuffix' + finish_cmds='PATH="\$PATH:/sbin" ldconfig -m $libdir' + dynamic_linker='NetBSD (a.out) ld.so' + else + library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major ${libname}${shared_ext}' + soname_spec='${libname}${release}${shared_ext}$major' + dynamic_linker='NetBSD ld.elf_so' + fi + shlibpath_var=LD_LIBRARY_PATH + shlibpath_overrides_runpath=yes + hardcode_into_libs=yes + ;; + +newsos6) + version_type=linux # correct to gnu/linux during the next big refactor + library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}' + shlibpath_var=LD_LIBRARY_PATH + shlibpath_overrides_runpath=yes + ;; + +*nto* | *qnx*) + version_type=qnx + need_lib_prefix=no + need_version=no + library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}' + soname_spec='${libname}${release}${shared_ext}$major' + shlibpath_var=LD_LIBRARY_PATH + shlibpath_overrides_runpath=no + hardcode_into_libs=yes + dynamic_linker='ldqnx.so' + ;; + +openbsd*) + version_type=sunos + sys_lib_dlsearch_path_spec="/usr/lib" + need_lib_prefix=no + # Some older versions of OpenBSD (3.3 at least) *do* need versioned libs. + case $host_os in + openbsd3.3 | openbsd3.3.*) need_version=yes ;; + *) need_version=no ;; + esac + library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${shared_ext}$versuffix' + finish_cmds='PATH="\$PATH:/sbin" ldconfig -m $libdir' + shlibpath_var=LD_LIBRARY_PATH + if test -z "`echo __ELF__ | $CC -E - | $GREP __ELF__`" || test "$host_os-$host_cpu" = "openbsd2.8-powerpc"; then + case $host_os in + openbsd2.[[89]] | openbsd2.[[89]].*) + shlibpath_overrides_runpath=no + ;; + *) + shlibpath_overrides_runpath=yes + ;; + esac + else + shlibpath_overrides_runpath=yes + fi + ;; + +os2*) + libname_spec='$name' + shrext_cmds=".dll" + need_lib_prefix=no + library_names_spec='$libname${shared_ext} $libname.a' + dynamic_linker='OS/2 ld.exe' + shlibpath_var=LIBPATH + ;; + +osf3* | osf4* | osf5*) + version_type=osf + need_lib_prefix=no + need_version=no + soname_spec='${libname}${release}${shared_ext}$major' + library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}' + shlibpath_var=LD_LIBRARY_PATH + sys_lib_search_path_spec="/usr/shlib /usr/ccs/lib /usr/lib/cmplrs/cc /usr/lib /usr/local/lib /var/shlib" + sys_lib_dlsearch_path_spec="$sys_lib_search_path_spec" + ;; + +rdos*) + dynamic_linker=no + ;; + +solaris*) + version_type=linux # correct to gnu/linux during the next big refactor + need_lib_prefix=no + need_version=no + library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}' + soname_spec='${libname}${release}${shared_ext}$major' + shlibpath_var=LD_LIBRARY_PATH + shlibpath_overrides_runpath=yes + hardcode_into_libs=yes + # ldd complains unless libraries are executable + postinstall_cmds='chmod +x $lib' + ;; + +sunos4*) + version_type=sunos + library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${shared_ext}$versuffix' + finish_cmds='PATH="\$PATH:/usr/etc" ldconfig $libdir' + shlibpath_var=LD_LIBRARY_PATH + shlibpath_overrides_runpath=yes + if test "$with_gnu_ld" = yes; then + need_lib_prefix=no + fi + need_version=yes + ;; + +sysv4 | sysv4.3*) + version_type=linux # correct to gnu/linux during the next big refactor + library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}' + soname_spec='${libname}${release}${shared_ext}$major' + shlibpath_var=LD_LIBRARY_PATH + case $host_vendor in + sni) + shlibpath_overrides_runpath=no + need_lib_prefix=no + runpath_var=LD_RUN_PATH + ;; + siemens) + need_lib_prefix=no + ;; + motorola) + need_lib_prefix=no + need_version=no + shlibpath_overrides_runpath=no + sys_lib_search_path_spec='/lib /usr/lib /usr/ccs/lib' + ;; + esac + ;; + +sysv4*MP*) + if test -d /usr/nec ;then + version_type=linux # correct to gnu/linux during the next big refactor + library_names_spec='$libname${shared_ext}.$versuffix $libname${shared_ext}.$major $libname${shared_ext}' + soname_spec='$libname${shared_ext}.$major' + shlibpath_var=LD_LIBRARY_PATH + fi + ;; + +sysv5* | sco3.2v5* | sco5v6* | unixware* | OpenUNIX* | sysv4*uw2*) + version_type=freebsd-elf + need_lib_prefix=no + need_version=no + library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext} $libname${shared_ext}' + soname_spec='${libname}${release}${shared_ext}$major' + shlibpath_var=LD_LIBRARY_PATH + shlibpath_overrides_runpath=yes + hardcode_into_libs=yes + if test "$with_gnu_ld" = yes; then + sys_lib_search_path_spec='/usr/local/lib /usr/gnu/lib /usr/ccs/lib /usr/lib /lib' + else + sys_lib_search_path_spec='/usr/ccs/lib /usr/lib' + case $host_os in + sco3.2v5*) + sys_lib_search_path_spec="$sys_lib_search_path_spec /lib" + ;; + esac + fi + sys_lib_dlsearch_path_spec='/usr/lib' + ;; + +tpf*) + # TPF is a cross-target only. Preferred cross-host = GNU/Linux. + version_type=linux # correct to gnu/linux during the next big refactor + need_lib_prefix=no + need_version=no + library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}' + shlibpath_var=LD_LIBRARY_PATH + shlibpath_overrides_runpath=no + hardcode_into_libs=yes + ;; + +uts4*) + version_type=linux # correct to gnu/linux during the next big refactor + library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}' + soname_spec='${libname}${release}${shared_ext}$major' + shlibpath_var=LD_LIBRARY_PATH + ;; + +*) + dynamic_linker=no + ;; +esac +AC_MSG_RESULT([$dynamic_linker]) +test "$dynamic_linker" = no && can_build_shared=no + +variables_saved_for_relink="PATH $shlibpath_var $runpath_var" +if test "$GCC" = yes; then + variables_saved_for_relink="$variables_saved_for_relink GCC_EXEC_PREFIX COMPILER_PATH LIBRARY_PATH" +fi + +if test "${lt_cv_sys_lib_search_path_spec+set}" = set; then + sys_lib_search_path_spec="$lt_cv_sys_lib_search_path_spec" +fi +if test "${lt_cv_sys_lib_dlsearch_path_spec+set}" = set; then + sys_lib_dlsearch_path_spec="$lt_cv_sys_lib_dlsearch_path_spec" +fi + +_LT_DECL([], [variables_saved_for_relink], [1], + [Variables whose values should be saved in libtool wrapper scripts and + restored at link time]) +_LT_DECL([], [need_lib_prefix], [0], + [Do we need the "lib" prefix for modules?]) +_LT_DECL([], [need_version], [0], [Do we need a version for libraries?]) +_LT_DECL([], [version_type], [0], [Library versioning type]) +_LT_DECL([], [runpath_var], [0], [Shared library runtime path variable]) +_LT_DECL([], [shlibpath_var], [0],[Shared library path variable]) +_LT_DECL([], [shlibpath_overrides_runpath], [0], + [Is shlibpath searched before the hard-coded library search path?]) +_LT_DECL([], [libname_spec], [1], [Format of library name prefix]) +_LT_DECL([], [library_names_spec], [1], + [[List of archive names. First name is the real one, the rest are links. + The last name is the one that the linker finds with -lNAME]]) +_LT_DECL([], [soname_spec], [1], + [[The coded name of the library, if different from the real name]]) +_LT_DECL([], [install_override_mode], [1], + [Permission mode override for installation of shared libraries]) +_LT_DECL([], [postinstall_cmds], [2], + [Command to use after installation of a shared archive]) +_LT_DECL([], [postuninstall_cmds], [2], + [Command to use after uninstallation of a shared archive]) +_LT_DECL([], [finish_cmds], [2], + [Commands used to finish a libtool library installation in a directory]) +_LT_DECL([], [finish_eval], [1], + [[As "finish_cmds", except a single script fragment to be evaled but + not shown]]) +_LT_DECL([], [hardcode_into_libs], [0], + [Whether we should hardcode library paths into libraries]) +_LT_DECL([], [sys_lib_search_path_spec], [2], + [Compile-time system search path for libraries]) +_LT_DECL([], [sys_lib_dlsearch_path_spec], [2], + [Run-time system search path for libraries]) +])# _LT_SYS_DYNAMIC_LINKER + + +# _LT_PATH_TOOL_PREFIX(TOOL) +# -------------------------- +# find a file program which can recognize shared library +AC_DEFUN([_LT_PATH_TOOL_PREFIX], +[m4_require([_LT_DECL_EGREP])dnl +AC_MSG_CHECKING([for $1]) +AC_CACHE_VAL(lt_cv_path_MAGIC_CMD, +[case $MAGIC_CMD in +[[\\/*] | ?:[\\/]*]) + lt_cv_path_MAGIC_CMD="$MAGIC_CMD" # Let the user override the test with a path. + ;; +*) + lt_save_MAGIC_CMD="$MAGIC_CMD" + lt_save_ifs="$IFS"; IFS=$PATH_SEPARATOR +dnl $ac_dummy forces splitting on constant user-supplied paths. +dnl POSIX.2 word splitting is done only on the output of word expansions, +dnl not every word. This closes a longstanding sh security hole. + ac_dummy="m4_if([$2], , $PATH, [$2])" + for ac_dir in $ac_dummy; do + IFS="$lt_save_ifs" + test -z "$ac_dir" && ac_dir=. + if test -f $ac_dir/$1; then + lt_cv_path_MAGIC_CMD="$ac_dir/$1" + if test -n "$file_magic_test_file"; then + case $deplibs_check_method in + "file_magic "*) + file_magic_regex=`expr "$deplibs_check_method" : "file_magic \(.*\)"` + MAGIC_CMD="$lt_cv_path_MAGIC_CMD" + if eval $file_magic_cmd \$file_magic_test_file 2> /dev/null | + $EGREP "$file_magic_regex" > /dev/null; then + : + else + cat <<_LT_EOF 1>&2 + +*** Warning: the command libtool uses to detect shared libraries, +*** $file_magic_cmd, produces output that libtool cannot recognize. +*** The result is that libtool may fail to recognize shared libraries +*** as such. This will affect the creation of libtool libraries that +*** depend on shared libraries, but programs linked with such libtool +*** libraries will work regardless of this problem. Nevertheless, you +*** may want to report the problem to your system manager and/or to +*** bug-libtool@gnu.org + +_LT_EOF + fi ;; + esac + fi + break + fi + done + IFS="$lt_save_ifs" + MAGIC_CMD="$lt_save_MAGIC_CMD" + ;; +esac]) +MAGIC_CMD="$lt_cv_path_MAGIC_CMD" +if test -n "$MAGIC_CMD"; then + AC_MSG_RESULT($MAGIC_CMD) +else + AC_MSG_RESULT(no) +fi +_LT_DECL([], [MAGIC_CMD], [0], + [Used to examine libraries when file_magic_cmd begins with "file"])dnl +])# _LT_PATH_TOOL_PREFIX + +# Old name: +AU_ALIAS([AC_PATH_TOOL_PREFIX], [_LT_PATH_TOOL_PREFIX]) +dnl aclocal-1.4 backwards compatibility: +dnl AC_DEFUN([AC_PATH_TOOL_PREFIX], []) + + +# _LT_PATH_MAGIC +# -------------- +# find a file program which can recognize a shared library +m4_defun([_LT_PATH_MAGIC], +[_LT_PATH_TOOL_PREFIX(${ac_tool_prefix}file, /usr/bin$PATH_SEPARATOR$PATH) +if test -z "$lt_cv_path_MAGIC_CMD"; then + if test -n "$ac_tool_prefix"; then + _LT_PATH_TOOL_PREFIX(file, /usr/bin$PATH_SEPARATOR$PATH) + else + MAGIC_CMD=: + fi +fi +])# _LT_PATH_MAGIC + + +# LT_PATH_LD +# ---------- +# find the pathname to the GNU or non-GNU linker +AC_DEFUN([LT_PATH_LD], +[AC_REQUIRE([AC_PROG_CC])dnl +AC_REQUIRE([AC_CANONICAL_HOST])dnl +AC_REQUIRE([AC_CANONICAL_BUILD])dnl +m4_require([_LT_DECL_SED])dnl +m4_require([_LT_DECL_EGREP])dnl +m4_require([_LT_PROG_ECHO_BACKSLASH])dnl + +AC_ARG_WITH([gnu-ld], + [AS_HELP_STRING([--with-gnu-ld], + [assume the C compiler uses GNU ld @<:@default=no@:>@])], + [test "$withval" = no || with_gnu_ld=yes], + [with_gnu_ld=no])dnl + +ac_prog=ld +if test "$GCC" = yes; then + # Check if gcc -print-prog-name=ld gives a path. + AC_MSG_CHECKING([for ld used by $CC]) + case $host in + *-*-mingw*) + # gcc leaves a trailing carriage return which upsets mingw + ac_prog=`($CC -print-prog-name=ld) 2>&5 | tr -d '\015'` ;; + *) + ac_prog=`($CC -print-prog-name=ld) 2>&5` ;; + esac + case $ac_prog in + # Accept absolute paths. + [[\\/]]* | ?:[[\\/]]*) + re_direlt='/[[^/]][[^/]]*/\.\./' + # Canonicalize the pathname of ld + ac_prog=`$ECHO "$ac_prog"| $SED 's%\\\\%/%g'` + while $ECHO "$ac_prog" | $GREP "$re_direlt" > /dev/null 2>&1; do + ac_prog=`$ECHO $ac_prog| $SED "s%$re_direlt%/%"` + done + test -z "$LD" && LD="$ac_prog" + ;; + "") + # If it fails, then pretend we aren't using GCC. + ac_prog=ld + ;; + *) + # If it is relative, then search for the first ld in PATH. + with_gnu_ld=unknown + ;; + esac +elif test "$with_gnu_ld" = yes; then + AC_MSG_CHECKING([for GNU ld]) +else + AC_MSG_CHECKING([for non-GNU ld]) +fi +AC_CACHE_VAL(lt_cv_path_LD, +[if test -z "$LD"; then + lt_save_ifs="$IFS"; IFS=$PATH_SEPARATOR + for ac_dir in $PATH; do + IFS="$lt_save_ifs" + test -z "$ac_dir" && ac_dir=. + if test -f "$ac_dir/$ac_prog" || test -f "$ac_dir/$ac_prog$ac_exeext"; then + lt_cv_path_LD="$ac_dir/$ac_prog" + # Check to see if the program is GNU ld. I'd rather use --version, + # but apparently some variants of GNU ld only accept -v. + # Break only if it was the GNU/non-GNU ld that we prefer. + case `"$lt_cv_path_LD" -v 2>&1 &1 /dev/null 2>&1; then + lt_cv_deplibs_check_method='file_magic ^x86 archive import|^x86 DLL' + lt_cv_file_magic_cmd='func_win32_libid' + else + # Keep this pattern in sync with the one in func_win32_libid. + lt_cv_deplibs_check_method='file_magic file format (pei*-i386(.*architecture: i386)?|pe-arm-wince|pe-x86-64)' + lt_cv_file_magic_cmd='$OBJDUMP -f' + fi + ;; + +cegcc*) + # use the weaker test based on 'objdump'. See mingw*. + lt_cv_deplibs_check_method='file_magic file format pe-arm-.*little(.*architecture: arm)?' + lt_cv_file_magic_cmd='$OBJDUMP -f' + ;; + +darwin* | rhapsody*) + lt_cv_deplibs_check_method=pass_all + ;; + +freebsd* | dragonfly*) + if echo __ELF__ | $CC -E - | $GREP __ELF__ > /dev/null; then + case $host_cpu in + i*86 ) + # Not sure whether the presence of OpenBSD here was a mistake. + # Let's accept both of them until this is cleared up. + lt_cv_deplibs_check_method='file_magic (FreeBSD|OpenBSD|DragonFly)/i[[3-9]]86 (compact )?demand paged shared library' + lt_cv_file_magic_cmd=/usr/bin/file + lt_cv_file_magic_test_file=`echo /usr/lib/libc.so.*` + ;; + esac + else + lt_cv_deplibs_check_method=pass_all + fi + ;; + +gnu*) + lt_cv_deplibs_check_method=pass_all + ;; + +haiku*) + lt_cv_deplibs_check_method=pass_all + ;; + +hpux10.20* | hpux11*) + lt_cv_file_magic_cmd=/usr/bin/file + case $host_cpu in + ia64*) + lt_cv_deplibs_check_method='file_magic (s[[0-9]][[0-9]][[0-9]]|ELF-[[0-9]][[0-9]]) shared object file - IA64' + lt_cv_file_magic_test_file=/usr/lib/hpux32/libc.so + ;; + hppa*64*) + [lt_cv_deplibs_check_method='file_magic (s[0-9][0-9][0-9]|ELF[ -][0-9][0-9])(-bit)?( [LM]SB)? shared object( file)?[, -]* PA-RISC [0-9]\.[0-9]'] + lt_cv_file_magic_test_file=/usr/lib/pa20_64/libc.sl + ;; + *) + lt_cv_deplibs_check_method='file_magic (s[[0-9]][[0-9]][[0-9]]|PA-RISC[[0-9]]\.[[0-9]]) shared library' + lt_cv_file_magic_test_file=/usr/lib/libc.sl + ;; + esac + ;; + +interix[[3-9]]*) + # PIC code is broken on Interix 3.x, that's why |\.a not |_pic\.a here + lt_cv_deplibs_check_method='match_pattern /lib[[^/]]+(\.so|\.a)$' + ;; + +irix5* | irix6* | nonstopux*) + case $LD in + *-32|*"-32 ") libmagic=32-bit;; + *-n32|*"-n32 ") libmagic=N32;; + *-64|*"-64 ") libmagic=64-bit;; + *) libmagic=never-match;; + esac + lt_cv_deplibs_check_method=pass_all + ;; + +# This must be glibc/ELF. +linux* | k*bsd*-gnu | kopensolaris*-gnu) + lt_cv_deplibs_check_method=pass_all + ;; + +netbsd*) + if echo __ELF__ | $CC -E - | $GREP __ELF__ > /dev/null; then + lt_cv_deplibs_check_method='match_pattern /lib[[^/]]+(\.so\.[[0-9]]+\.[[0-9]]+|_pic\.a)$' + else + lt_cv_deplibs_check_method='match_pattern /lib[[^/]]+(\.so|_pic\.a)$' + fi + ;; + +newos6*) + lt_cv_deplibs_check_method='file_magic ELF [[0-9]][[0-9]]*-bit [[ML]]SB (executable|dynamic lib)' + lt_cv_file_magic_cmd=/usr/bin/file + lt_cv_file_magic_test_file=/usr/lib/libnls.so + ;; + +*nto* | *qnx*) + lt_cv_deplibs_check_method=pass_all + ;; + +openbsd*) + if test -z "`echo __ELF__ | $CC -E - | $GREP __ELF__`" || test "$host_os-$host_cpu" = "openbsd2.8-powerpc"; then + lt_cv_deplibs_check_method='match_pattern /lib[[^/]]+(\.so\.[[0-9]]+\.[[0-9]]+|\.so|_pic\.a)$' + else + lt_cv_deplibs_check_method='match_pattern /lib[[^/]]+(\.so\.[[0-9]]+\.[[0-9]]+|_pic\.a)$' + fi + ;; + +osf3* | osf4* | osf5*) + lt_cv_deplibs_check_method=pass_all + ;; + +rdos*) + lt_cv_deplibs_check_method=pass_all + ;; + +solaris*) + lt_cv_deplibs_check_method=pass_all + ;; + +sysv5* | sco3.2v5* | sco5v6* | unixware* | OpenUNIX* | sysv4*uw2*) + lt_cv_deplibs_check_method=pass_all + ;; + +sysv4 | sysv4.3*) + case $host_vendor in + motorola) + lt_cv_deplibs_check_method='file_magic ELF [[0-9]][[0-9]]*-bit [[ML]]SB (shared object|dynamic lib) M[[0-9]][[0-9]]* Version [[0-9]]' + lt_cv_file_magic_test_file=`echo /usr/lib/libc.so*` + ;; + ncr) + lt_cv_deplibs_check_method=pass_all + ;; + sequent) + lt_cv_file_magic_cmd='/bin/file' + lt_cv_deplibs_check_method='file_magic ELF [[0-9]][[0-9]]*-bit [[LM]]SB (shared object|dynamic lib )' + ;; + sni) + lt_cv_file_magic_cmd='/bin/file' + lt_cv_deplibs_check_method="file_magic ELF [[0-9]][[0-9]]*-bit [[LM]]SB dynamic lib" + lt_cv_file_magic_test_file=/lib/libc.so + ;; + siemens) + lt_cv_deplibs_check_method=pass_all + ;; + pc) + lt_cv_deplibs_check_method=pass_all + ;; + esac + ;; + +tpf*) + lt_cv_deplibs_check_method=pass_all + ;; +esac +]) + +file_magic_glob= +want_nocaseglob=no +if test "$build" = "$host"; then + case $host_os in + mingw* | pw32*) + if ( shopt | grep nocaseglob ) >/dev/null 2>&1; then + want_nocaseglob=yes + else + file_magic_glob=`echo aAbBcCdDeEfFgGhHiIjJkKlLmMnNoOpPqQrRsStTuUvVwWxXyYzZ | $SED -e "s/\(..\)/s\/[[\1]]\/[[\1]]\/g;/g"` + fi + ;; + esac +fi + +file_magic_cmd=$lt_cv_file_magic_cmd +deplibs_check_method=$lt_cv_deplibs_check_method +test -z "$deplibs_check_method" && deplibs_check_method=unknown + +_LT_DECL([], [deplibs_check_method], [1], + [Method to check whether dependent libraries are shared objects]) +_LT_DECL([], [file_magic_cmd], [1], + [Command to use when deplibs_check_method = "file_magic"]) +_LT_DECL([], [file_magic_glob], [1], + [How to find potential files when deplibs_check_method = "file_magic"]) +_LT_DECL([], [want_nocaseglob], [1], + [Find potential files using nocaseglob when deplibs_check_method = "file_magic"]) +])# _LT_CHECK_MAGIC_METHOD + + +# LT_PATH_NM +# ---------- +# find the pathname to a BSD- or MS-compatible name lister +AC_DEFUN([LT_PATH_NM], +[AC_REQUIRE([AC_PROG_CC])dnl +AC_CACHE_CHECK([for BSD- or MS-compatible name lister (nm)], lt_cv_path_NM, +[if test -n "$NM"; then + # Let the user override the test. + lt_cv_path_NM="$NM" +else + lt_nm_to_check="${ac_tool_prefix}nm" + if test -n "$ac_tool_prefix" && test "$build" = "$host"; then + lt_nm_to_check="$lt_nm_to_check nm" + fi + for lt_tmp_nm in $lt_nm_to_check; do + lt_save_ifs="$IFS"; IFS=$PATH_SEPARATOR + for ac_dir in $PATH /usr/ccs/bin/elf /usr/ccs/bin /usr/ucb /bin; do + IFS="$lt_save_ifs" + test -z "$ac_dir" && ac_dir=. + tmp_nm="$ac_dir/$lt_tmp_nm" + if test -f "$tmp_nm" || test -f "$tmp_nm$ac_exeext" ; then + # Check to see if the nm accepts a BSD-compat flag. + # Adding the `sed 1q' prevents false positives on HP-UX, which says: + # nm: unknown option "B" ignored + # Tru64's nm complains that /dev/null is an invalid object file + case `"$tmp_nm" -B /dev/null 2>&1 | sed '1q'` in + */dev/null* | *'Invalid file or object type'*) + lt_cv_path_NM="$tmp_nm -B" + break + ;; + *) + case `"$tmp_nm" -p /dev/null 2>&1 | sed '1q'` in + */dev/null*) + lt_cv_path_NM="$tmp_nm -p" + break + ;; + *) + lt_cv_path_NM=${lt_cv_path_NM="$tmp_nm"} # keep the first match, but + continue # so that we can try to find one that supports BSD flags + ;; + esac + ;; + esac + fi + done + IFS="$lt_save_ifs" + done + : ${lt_cv_path_NM=no} +fi]) +if test "$lt_cv_path_NM" != "no"; then + NM="$lt_cv_path_NM" +else + # Didn't find any BSD compatible name lister, look for dumpbin. + if test -n "$DUMPBIN"; then : + # Let the user override the test. + else + AC_CHECK_TOOLS(DUMPBIN, [dumpbin "link -dump"], :) + case `$DUMPBIN -symbols /dev/null 2>&1 | sed '1q'` in + *COFF*) + DUMPBIN="$DUMPBIN -symbols" + ;; + *) + DUMPBIN=: + ;; + esac + fi + AC_SUBST([DUMPBIN]) + if test "$DUMPBIN" != ":"; then + NM="$DUMPBIN" + fi +fi +test -z "$NM" && NM=nm +AC_SUBST([NM]) +_LT_DECL([], [NM], [1], [A BSD- or MS-compatible name lister])dnl + +AC_CACHE_CHECK([the name lister ($NM) interface], [lt_cv_nm_interface], + [lt_cv_nm_interface="BSD nm" + echo "int some_variable = 0;" > conftest.$ac_ext + (eval echo "\"\$as_me:$LINENO: $ac_compile\"" >&AS_MESSAGE_LOG_FD) + (eval "$ac_compile" 2>conftest.err) + cat conftest.err >&AS_MESSAGE_LOG_FD + (eval echo "\"\$as_me:$LINENO: $NM \\\"conftest.$ac_objext\\\"\"" >&AS_MESSAGE_LOG_FD) + (eval "$NM \"conftest.$ac_objext\"" 2>conftest.err > conftest.out) + cat conftest.err >&AS_MESSAGE_LOG_FD + (eval echo "\"\$as_me:$LINENO: output\"" >&AS_MESSAGE_LOG_FD) + cat conftest.out >&AS_MESSAGE_LOG_FD + if $GREP 'External.*some_variable' conftest.out > /dev/null; then + lt_cv_nm_interface="MS dumpbin" + fi + rm -f conftest*]) +])# LT_PATH_NM + +# Old names: +AU_ALIAS([AM_PROG_NM], [LT_PATH_NM]) +AU_ALIAS([AC_PROG_NM], [LT_PATH_NM]) +dnl aclocal-1.4 backwards compatibility: +dnl AC_DEFUN([AM_PROG_NM], []) +dnl AC_DEFUN([AC_PROG_NM], []) + +# _LT_CHECK_SHAREDLIB_FROM_LINKLIB +# -------------------------------- +# how to determine the name of the shared library +# associated with a specific link library. +# -- PORTME fill in with the dynamic library characteristics +m4_defun([_LT_CHECK_SHAREDLIB_FROM_LINKLIB], +[m4_require([_LT_DECL_EGREP]) +m4_require([_LT_DECL_OBJDUMP]) +m4_require([_LT_DECL_DLLTOOL]) +AC_CACHE_CHECK([how to associate runtime and link libraries], +lt_cv_sharedlib_from_linklib_cmd, +[lt_cv_sharedlib_from_linklib_cmd='unknown' + +case $host_os in +cygwin* | mingw* | pw32* | cegcc*) + # two different shell functions defined in ltmain.sh + # decide which to use based on capabilities of $DLLTOOL + case `$DLLTOOL --help 2>&1` in + *--identify-strict*) + lt_cv_sharedlib_from_linklib_cmd=func_cygming_dll_for_implib + ;; + *) + lt_cv_sharedlib_from_linklib_cmd=func_cygming_dll_for_implib_fallback + ;; + esac + ;; +*) + # fallback: assume linklib IS sharedlib + lt_cv_sharedlib_from_linklib_cmd="$ECHO" + ;; +esac +]) +sharedlib_from_linklib_cmd=$lt_cv_sharedlib_from_linklib_cmd +test -z "$sharedlib_from_linklib_cmd" && sharedlib_from_linklib_cmd=$ECHO + +_LT_DECL([], [sharedlib_from_linklib_cmd], [1], + [Command to associate shared and link libraries]) +])# _LT_CHECK_SHAREDLIB_FROM_LINKLIB + + +# _LT_PATH_MANIFEST_TOOL +# ---------------------- +# locate the manifest tool +m4_defun([_LT_PATH_MANIFEST_TOOL], +[AC_CHECK_TOOL(MANIFEST_TOOL, mt, :) +test -z "$MANIFEST_TOOL" && MANIFEST_TOOL=mt +AC_CACHE_CHECK([if $MANIFEST_TOOL is a manifest tool], [lt_cv_path_mainfest_tool], + [lt_cv_path_mainfest_tool=no + echo "$as_me:$LINENO: $MANIFEST_TOOL '-?'" >&AS_MESSAGE_LOG_FD + $MANIFEST_TOOL '-?' 2>conftest.err > conftest.out + cat conftest.err >&AS_MESSAGE_LOG_FD + if $GREP 'Manifest Tool' conftest.out > /dev/null; then + lt_cv_path_mainfest_tool=yes + fi + rm -f conftest*]) +if test "x$lt_cv_path_mainfest_tool" != xyes; then + MANIFEST_TOOL=: +fi +_LT_DECL([], [MANIFEST_TOOL], [1], [Manifest tool])dnl +])# _LT_PATH_MANIFEST_TOOL + + +# LT_LIB_M +# -------- +# check for math library +AC_DEFUN([LT_LIB_M], +[AC_REQUIRE([AC_CANONICAL_HOST])dnl +LIBM= +case $host in +*-*-beos* | *-*-cegcc* | *-*-cygwin* | *-*-haiku* | *-*-pw32* | *-*-darwin*) + # These system don't have libm, or don't need it + ;; +*-ncr-sysv4.3*) + AC_CHECK_LIB(mw, _mwvalidcheckl, LIBM="-lmw") + AC_CHECK_LIB(m, cos, LIBM="$LIBM -lm") + ;; +*) + AC_CHECK_LIB(m, cos, LIBM="-lm") + ;; +esac +AC_SUBST([LIBM]) +])# LT_LIB_M + +# Old name: +AU_ALIAS([AC_CHECK_LIBM], [LT_LIB_M]) +dnl aclocal-1.4 backwards compatibility: +dnl AC_DEFUN([AC_CHECK_LIBM], []) + + +# _LT_COMPILER_NO_RTTI([TAGNAME]) +# ------------------------------- +m4_defun([_LT_COMPILER_NO_RTTI], +[m4_require([_LT_TAG_COMPILER])dnl + +_LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1)= + +if test "$GCC" = yes; then + case $cc_basename in + nvcc*) + _LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1)=' -Xcompiler -fno-builtin' ;; + *) + _LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1)=' -fno-builtin' ;; + esac + + _LT_COMPILER_OPTION([if $compiler supports -fno-rtti -fno-exceptions], + lt_cv_prog_compiler_rtti_exceptions, + [-fno-rtti -fno-exceptions], [], + [_LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1)="$_LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1) -fno-rtti -fno-exceptions"]) +fi +_LT_TAGDECL([no_builtin_flag], [lt_prog_compiler_no_builtin_flag], [1], + [Compiler flag to turn off builtin functions]) +])# _LT_COMPILER_NO_RTTI + + +# _LT_CMD_GLOBAL_SYMBOLS +# ---------------------- +m4_defun([_LT_CMD_GLOBAL_SYMBOLS], +[AC_REQUIRE([AC_CANONICAL_HOST])dnl +AC_REQUIRE([AC_PROG_CC])dnl +AC_REQUIRE([AC_PROG_AWK])dnl +AC_REQUIRE([LT_PATH_NM])dnl +AC_REQUIRE([LT_PATH_LD])dnl +m4_require([_LT_DECL_SED])dnl +m4_require([_LT_DECL_EGREP])dnl +m4_require([_LT_TAG_COMPILER])dnl + +# Check for command to grab the raw symbol name followed by C symbol from nm. +AC_MSG_CHECKING([command to parse $NM output from $compiler object]) +AC_CACHE_VAL([lt_cv_sys_global_symbol_pipe], +[ +# These are sane defaults that work on at least a few old systems. +# [They come from Ultrix. What could be older than Ultrix?!! ;)] + +# Character class describing NM global symbol codes. +symcode='[[BCDEGRST]]' + +# Regexp to match symbols that can be accessed directly from C. +sympat='\([[_A-Za-z]][[_A-Za-z0-9]]*\)' + +# Define system-specific variables. +case $host_os in +aix*) + symcode='[[BCDT]]' + ;; +cygwin* | mingw* | pw32* | cegcc*) + symcode='[[ABCDGISTW]]' + ;; +hpux*) + if test "$host_cpu" = ia64; then + symcode='[[ABCDEGRST]]' + fi + ;; +irix* | nonstopux*) + symcode='[[BCDEGRST]]' + ;; +osf*) + symcode='[[BCDEGQRST]]' + ;; +solaris*) + symcode='[[BDRT]]' + ;; +sco3.2v5*) + symcode='[[DT]]' + ;; +sysv4.2uw2*) + symcode='[[DT]]' + ;; +sysv5* | sco5v6* | unixware* | OpenUNIX*) + symcode='[[ABDT]]' + ;; +sysv4) + symcode='[[DFNSTU]]' + ;; +esac + +# If we're using GNU nm, then use its standard symbol codes. +case `$NM -V 2>&1` in +*GNU* | *'with BFD'*) + symcode='[[ABCDGIRSTW]]' ;; +esac + +# Transform an extracted symbol line into a proper C declaration. +# Some systems (esp. on ia64) link data and code symbols differently, +# so use this general approach. +lt_cv_sys_global_symbol_to_cdecl="sed -n -e 's/^T .* \(.*\)$/extern int \1();/p' -e 's/^$symcode* .* \(.*\)$/extern char \1;/p'" + +# Transform an extracted symbol line into symbol name and symbol address +lt_cv_sys_global_symbol_to_c_name_address="sed -n -e 's/^: \([[^ ]]*\)[[ ]]*$/ {\\\"\1\\\", (void *) 0},/p' -e 's/^$symcode* \([[^ ]]*\) \([[^ ]]*\)$/ {\"\2\", (void *) \&\2},/p'" +lt_cv_sys_global_symbol_to_c_name_address_lib_prefix="sed -n -e 's/^: \([[^ ]]*\)[[ ]]*$/ {\\\"\1\\\", (void *) 0},/p' -e 's/^$symcode* \([[^ ]]*\) \(lib[[^ ]]*\)$/ {\"\2\", (void *) \&\2},/p' -e 's/^$symcode* \([[^ ]]*\) \([[^ ]]*\)$/ {\"lib\2\", (void *) \&\2},/p'" + +# Handle CRLF in mingw tool chain +opt_cr= +case $build_os in +mingw*) + opt_cr=`$ECHO 'x\{0,1\}' | tr x '\015'` # option cr in regexp + ;; +esac + +# Try without a prefix underscore, then with it. +for ac_symprfx in "" "_"; do + + # Transform symcode, sympat, and symprfx into a raw symbol and a C symbol. + symxfrm="\\1 $ac_symprfx\\2 \\2" + + # Write the raw and C identifiers. + if test "$lt_cv_nm_interface" = "MS dumpbin"; then + # Fake it for dumpbin and say T for any non-static function + # and D for any global variable. + # Also find C++ and __fastcall symbols from MSVC++, + # which start with @ or ?. + lt_cv_sys_global_symbol_pipe="$AWK ['"\ +" {last_section=section; section=\$ 3};"\ +" /^COFF SYMBOL TABLE/{for(i in hide) delete hide[i]};"\ +" /Section length .*#relocs.*(pick any)/{hide[last_section]=1};"\ +" \$ 0!~/External *\|/{next};"\ +" / 0+ UNDEF /{next}; / UNDEF \([^|]\)*()/{next};"\ +" {if(hide[section]) next};"\ +" {f=0}; \$ 0~/\(\).*\|/{f=1}; {printf f ? \"T \" : \"D \"};"\ +" {split(\$ 0, a, /\||\r/); split(a[2], s)};"\ +" s[1]~/^[@?]/{print s[1], s[1]; next};"\ +" s[1]~prfx {split(s[1],t,\"@\"); print t[1], substr(t[1],length(prfx))}"\ +" ' prfx=^$ac_symprfx]" + else + lt_cv_sys_global_symbol_pipe="sed -n -e 's/^.*[[ ]]\($symcode$symcode*\)[[ ]][[ ]]*$ac_symprfx$sympat$opt_cr$/$symxfrm/p'" + fi + lt_cv_sys_global_symbol_pipe="$lt_cv_sys_global_symbol_pipe | sed '/ __gnu_lto/d'" + + # Check to see that the pipe works correctly. + pipe_works=no + + rm -f conftest* + cat > conftest.$ac_ext <<_LT_EOF +#ifdef __cplusplus +extern "C" { +#endif +char nm_test_var; +void nm_test_func(void); +void nm_test_func(void){} +#ifdef __cplusplus +} +#endif +int main(){nm_test_var='a';nm_test_func();return(0);} +_LT_EOF + + if AC_TRY_EVAL(ac_compile); then + # Now try to grab the symbols. + nlist=conftest.nm + if AC_TRY_EVAL(NM conftest.$ac_objext \| "$lt_cv_sys_global_symbol_pipe" \> $nlist) && test -s "$nlist"; then + # Try sorting and uniquifying the output. + if sort "$nlist" | uniq > "$nlist"T; then + mv -f "$nlist"T "$nlist" + else + rm -f "$nlist"T + fi + + # Make sure that we snagged all the symbols we need. + if $GREP ' nm_test_var$' "$nlist" >/dev/null; then + if $GREP ' nm_test_func$' "$nlist" >/dev/null; then + cat <<_LT_EOF > conftest.$ac_ext +/* Keep this code in sync between libtool.m4, ltmain, lt_system.h, and tests. */ +#if defined(_WIN32) || defined(__CYGWIN__) || defined(_WIN32_WCE) +/* DATA imports from DLLs on WIN32 con't be const, because runtime + relocations are performed -- see ld's documentation on pseudo-relocs. */ +# define LT@&t@_DLSYM_CONST +#elif defined(__osf__) +/* This system does not cope well with relocations in const data. */ +# define LT@&t@_DLSYM_CONST +#else +# define LT@&t@_DLSYM_CONST const +#endif + +#ifdef __cplusplus +extern "C" { +#endif + +_LT_EOF + # Now generate the symbol file. + eval "$lt_cv_sys_global_symbol_to_cdecl"' < "$nlist" | $GREP -v main >> conftest.$ac_ext' + + cat <<_LT_EOF >> conftest.$ac_ext + +/* The mapping between symbol names and symbols. */ +LT@&t@_DLSYM_CONST struct { + const char *name; + void *address; +} +lt__PROGRAM__LTX_preloaded_symbols[[]] = +{ + { "@PROGRAM@", (void *) 0 }, +_LT_EOF + $SED "s/^$symcode$symcode* \(.*\) \(.*\)$/ {\"\2\", (void *) \&\2},/" < "$nlist" | $GREP -v main >> conftest.$ac_ext + cat <<\_LT_EOF >> conftest.$ac_ext + {0, (void *) 0} +}; + +/* This works around a problem in FreeBSD linker */ +#ifdef FREEBSD_WORKAROUND +static const void *lt_preloaded_setup() { + return lt__PROGRAM__LTX_preloaded_symbols; +} +#endif + +#ifdef __cplusplus +} +#endif +_LT_EOF + # Now try linking the two files. + mv conftest.$ac_objext conftstm.$ac_objext + lt_globsym_save_LIBS=$LIBS + lt_globsym_save_CFLAGS=$CFLAGS + LIBS="conftstm.$ac_objext" + CFLAGS="$CFLAGS$_LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1)" + if AC_TRY_EVAL(ac_link) && test -s conftest${ac_exeext}; then + pipe_works=yes + fi + LIBS=$lt_globsym_save_LIBS + CFLAGS=$lt_globsym_save_CFLAGS + else + echo "cannot find nm_test_func in $nlist" >&AS_MESSAGE_LOG_FD + fi + else + echo "cannot find nm_test_var in $nlist" >&AS_MESSAGE_LOG_FD + fi + else + echo "cannot run $lt_cv_sys_global_symbol_pipe" >&AS_MESSAGE_LOG_FD + fi + else + echo "$progname: failed program was:" >&AS_MESSAGE_LOG_FD + cat conftest.$ac_ext >&5 + fi + rm -rf conftest* conftst* + + # Do not use the global_symbol_pipe unless it works. + if test "$pipe_works" = yes; then + break + else + lt_cv_sys_global_symbol_pipe= + fi +done +]) +if test -z "$lt_cv_sys_global_symbol_pipe"; then + lt_cv_sys_global_symbol_to_cdecl= +fi +if test -z "$lt_cv_sys_global_symbol_pipe$lt_cv_sys_global_symbol_to_cdecl"; then + AC_MSG_RESULT(failed) +else + AC_MSG_RESULT(ok) +fi + +# Response file support. +if test "$lt_cv_nm_interface" = "MS dumpbin"; then + nm_file_list_spec='@' +elif $NM --help 2>/dev/null | grep '[[@]]FILE' >/dev/null; then + nm_file_list_spec='@' +fi + +_LT_DECL([global_symbol_pipe], [lt_cv_sys_global_symbol_pipe], [1], + [Take the output of nm and produce a listing of raw symbols and C names]) +_LT_DECL([global_symbol_to_cdecl], [lt_cv_sys_global_symbol_to_cdecl], [1], + [Transform the output of nm in a proper C declaration]) +_LT_DECL([global_symbol_to_c_name_address], + [lt_cv_sys_global_symbol_to_c_name_address], [1], + [Transform the output of nm in a C name address pair]) +_LT_DECL([global_symbol_to_c_name_address_lib_prefix], + [lt_cv_sys_global_symbol_to_c_name_address_lib_prefix], [1], + [Transform the output of nm in a C name address pair when lib prefix is needed]) +_LT_DECL([], [nm_file_list_spec], [1], + [Specify filename containing input files for $NM]) +]) # _LT_CMD_GLOBAL_SYMBOLS + + +# _LT_COMPILER_PIC([TAGNAME]) +# --------------------------- +m4_defun([_LT_COMPILER_PIC], +[m4_require([_LT_TAG_COMPILER])dnl +_LT_TAGVAR(lt_prog_compiler_wl, $1)= +_LT_TAGVAR(lt_prog_compiler_pic, $1)= +_LT_TAGVAR(lt_prog_compiler_static, $1)= + +m4_if([$1], [CXX], [ + # C++ specific cases for pic, static, wl, etc. + if test "$GXX" = yes; then + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' + _LT_TAGVAR(lt_prog_compiler_static, $1)='-static' + + case $host_os in + aix*) + # All AIX code is PIC. + if test "$host_cpu" = ia64; then + # AIX 5 now supports IA64 processor + _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' + fi + ;; + + amigaos*) + case $host_cpu in + powerpc) + # see comment about AmigaOS4 .so support + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC' + ;; + m68k) + # FIXME: we need at least 68020 code to build shared libraries, but + # adding the `-m68020' flag to GCC prevents building anything better, + # like `-m68040'. + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-m68020 -resident32 -malways-restore-a4' + ;; + esac + ;; + + beos* | irix5* | irix6* | nonstopux* | osf3* | osf4* | osf5*) + # PIC is the default for these OSes. + ;; + mingw* | cygwin* | os2* | pw32* | cegcc*) + # This hack is so that the source file can tell whether it is being + # built for inclusion in a dll (and should export symbols for example). + # Although the cygwin gcc ignores -fPIC, still need this for old-style + # (--disable-auto-import) libraries + m4_if([$1], [GCJ], [], + [_LT_TAGVAR(lt_prog_compiler_pic, $1)='-DDLL_EXPORT']) + ;; + darwin* | rhapsody*) + # PIC is the default on this platform + # Common symbols not allowed in MH_DYLIB files + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fno-common' + ;; + *djgpp*) + # DJGPP does not support shared libraries at all + _LT_TAGVAR(lt_prog_compiler_pic, $1)= + ;; + haiku*) + # PIC is the default for Haiku. + # The "-static" flag exists, but is broken. + _LT_TAGVAR(lt_prog_compiler_static, $1)= + ;; + interix[[3-9]]*) + # Interix 3.x gcc -fpic/-fPIC options generate broken code. + # Instead, we relocate shared libraries at runtime. + ;; + sysv4*MP*) + if test -d /usr/nec; then + _LT_TAGVAR(lt_prog_compiler_pic, $1)=-Kconform_pic + fi + ;; + hpux*) + # PIC is the default for 64-bit PA HP-UX, but not for 32-bit + # PA HP-UX. On IA64 HP-UX, PIC is the default but the pic flag + # sets the default TLS model and affects inlining. + case $host_cpu in + hppa*64*) + ;; + *) + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC' + ;; + esac + ;; + *qnx* | *nto*) + # QNX uses GNU C++, but need to define -shared option too, otherwise + # it will coredump. + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC -shared' + ;; + *) + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC' + ;; + esac + else + case $host_os in + aix[[4-9]]*) + # All AIX code is PIC. + if test "$host_cpu" = ia64; then + # AIX 5 now supports IA64 processor + _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' + else + _LT_TAGVAR(lt_prog_compiler_static, $1)='-bnso -bI:/lib/syscalls.exp' + fi + ;; + chorus*) + case $cc_basename in + cxch68*) + # Green Hills C++ Compiler + # _LT_TAGVAR(lt_prog_compiler_static, $1)="--no_auto_instantiation -u __main -u __premain -u _abort -r $COOL_DIR/lib/libOrb.a $MVME_DIR/lib/CC/libC.a $MVME_DIR/lib/classix/libcx.s.a" + ;; + esac + ;; + mingw* | cygwin* | os2* | pw32* | cegcc*) + # This hack is so that the source file can tell whether it is being + # built for inclusion in a dll (and should export symbols for example). + m4_if([$1], [GCJ], [], + [_LT_TAGVAR(lt_prog_compiler_pic, $1)='-DDLL_EXPORT']) + ;; + dgux*) + case $cc_basename in + ec++*) + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC' + ;; + ghcx*) + # Green Hills C++ Compiler + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-pic' + ;; + *) + ;; + esac + ;; + freebsd* | dragonfly*) + # FreeBSD uses GNU C++ + ;; + hpux9* | hpux10* | hpux11*) + case $cc_basename in + CC*) + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' + _LT_TAGVAR(lt_prog_compiler_static, $1)='${wl}-a ${wl}archive' + if test "$host_cpu" != ia64; then + _LT_TAGVAR(lt_prog_compiler_pic, $1)='+Z' + fi + ;; + aCC*) + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' + _LT_TAGVAR(lt_prog_compiler_static, $1)='${wl}-a ${wl}archive' + case $host_cpu in + hppa*64*|ia64*) + # +Z the default + ;; + *) + _LT_TAGVAR(lt_prog_compiler_pic, $1)='+Z' + ;; + esac + ;; + *) + ;; + esac + ;; + interix*) + # This is c89, which is MS Visual C++ (no shared libs) + # Anyone wants to do a port? + ;; + irix5* | irix6* | nonstopux*) + case $cc_basename in + CC*) + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' + _LT_TAGVAR(lt_prog_compiler_static, $1)='-non_shared' + # CC pic flag -KPIC is the default. + ;; + *) + ;; + esac + ;; + linux* | k*bsd*-gnu | kopensolaris*-gnu) + case $cc_basename in + KCC*) + # KAI C++ Compiler + _LT_TAGVAR(lt_prog_compiler_wl, $1)='--backend -Wl,' + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC' + ;; + ecpc* ) + # old Intel C++ for x86_64 which still supported -KPIC. + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC' + _LT_TAGVAR(lt_prog_compiler_static, $1)='-static' + ;; + icpc* ) + # Intel C++, used to be incompatible with GCC. + # ICC 10 doesn't accept -KPIC any more. + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC' + _LT_TAGVAR(lt_prog_compiler_static, $1)='-static' + ;; + pgCC* | pgcpp*) + # Portland Group C++ compiler + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fpic' + _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' + ;; + cxx*) + # Compaq C++ + # Make sure the PIC flag is empty. It appears that all Alpha + # Linux and Compaq Tru64 Unix objects are PIC. + _LT_TAGVAR(lt_prog_compiler_pic, $1)= + _LT_TAGVAR(lt_prog_compiler_static, $1)='-non_shared' + ;; + xlc* | xlC* | bgxl[[cC]]* | mpixl[[cC]]*) + # IBM XL 8.0, 9.0 on PPC and BlueGene + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-qpic' + _LT_TAGVAR(lt_prog_compiler_static, $1)='-qstaticlink' + ;; + *) + case `$CC -V 2>&1 | sed 5q` in + *Sun\ C*) + # Sun C++ 5.9 + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC' + _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Qoption ld ' + ;; + esac + ;; + esac + ;; + lynxos*) + ;; + m88k*) + ;; + mvs*) + case $cc_basename in + cxx*) + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-W c,exportall' + ;; + *) + ;; + esac + ;; + netbsd*) + ;; + *qnx* | *nto*) + # QNX uses GNU C++, but need to define -shared option too, otherwise + # it will coredump. + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC -shared' + ;; + osf3* | osf4* | osf5*) + case $cc_basename in + KCC*) + _LT_TAGVAR(lt_prog_compiler_wl, $1)='--backend -Wl,' + ;; + RCC*) + # Rational C++ 2.4.1 + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-pic' + ;; + cxx*) + # Digital/Compaq C++ + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' + # Make sure the PIC flag is empty. It appears that all Alpha + # Linux and Compaq Tru64 Unix objects are PIC. + _LT_TAGVAR(lt_prog_compiler_pic, $1)= + _LT_TAGVAR(lt_prog_compiler_static, $1)='-non_shared' + ;; + *) + ;; + esac + ;; + psos*) + ;; + solaris*) + case $cc_basename in + CC* | sunCC*) + # Sun C++ 4.2, 5.x and Centerline C++ + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC' + _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Qoption ld ' + ;; + gcx*) + # Green Hills C++ Compiler + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-PIC' + ;; + *) + ;; + esac + ;; + sunos4*) + case $cc_basename in + CC*) + # Sun C++ 4.x + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-pic' + _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' + ;; + lcc*) + # Lucid + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-pic' + ;; + *) + ;; + esac + ;; + sysv5* | unixware* | sco3.2v5* | sco5v6* | OpenUNIX*) + case $cc_basename in + CC*) + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC' + _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' + ;; + esac + ;; + tandem*) + case $cc_basename in + NCC*) + # NonStop-UX NCC 3.20 + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC' + ;; + *) + ;; + esac + ;; + vxworks*) + ;; + *) + _LT_TAGVAR(lt_prog_compiler_can_build_shared, $1)=no + ;; + esac + fi +], +[ + if test "$GCC" = yes; then + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' + _LT_TAGVAR(lt_prog_compiler_static, $1)='-static' + + case $host_os in + aix*) + # All AIX code is PIC. + if test "$host_cpu" = ia64; then + # AIX 5 now supports IA64 processor + _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' + fi + ;; + + amigaos*) + case $host_cpu in + powerpc) + # see comment about AmigaOS4 .so support + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC' + ;; + m68k) + # FIXME: we need at least 68020 code to build shared libraries, but + # adding the `-m68020' flag to GCC prevents building anything better, + # like `-m68040'. + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-m68020 -resident32 -malways-restore-a4' + ;; + esac + ;; + + beos* | irix5* | irix6* | nonstopux* | osf3* | osf4* | osf5*) + # PIC is the default for these OSes. + ;; + + mingw* | cygwin* | pw32* | os2* | cegcc*) + # This hack is so that the source file can tell whether it is being + # built for inclusion in a dll (and should export symbols for example). + # Although the cygwin gcc ignores -fPIC, still need this for old-style + # (--disable-auto-import) libraries + m4_if([$1], [GCJ], [], + [_LT_TAGVAR(lt_prog_compiler_pic, $1)='-DDLL_EXPORT']) + ;; + + darwin* | rhapsody*) + # PIC is the default on this platform + # Common symbols not allowed in MH_DYLIB files + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fno-common' + ;; + + haiku*) + # PIC is the default for Haiku. + # The "-static" flag exists, but is broken. + _LT_TAGVAR(lt_prog_compiler_static, $1)= + ;; + + hpux*) + # PIC is the default for 64-bit PA HP-UX, but not for 32-bit + # PA HP-UX. On IA64 HP-UX, PIC is the default but the pic flag + # sets the default TLS model and affects inlining. + case $host_cpu in + hppa*64*) + # +Z the default + ;; + *) + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC' + ;; + esac + ;; + + interix[[3-9]]*) + # Interix 3.x gcc -fpic/-fPIC options generate broken code. + # Instead, we relocate shared libraries at runtime. + ;; + + msdosdjgpp*) + # Just because we use GCC doesn't mean we suddenly get shared libraries + # on systems that don't support them. + _LT_TAGVAR(lt_prog_compiler_can_build_shared, $1)=no + enable_shared=no + ;; + + *nto* | *qnx*) + # QNX uses GNU C++, but need to define -shared option too, otherwise + # it will coredump. + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC -shared' + ;; + + sysv4*MP*) + if test -d /usr/nec; then + _LT_TAGVAR(lt_prog_compiler_pic, $1)=-Kconform_pic + fi + ;; + + *) + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC' + ;; + esac + + case $cc_basename in + nvcc*) # Cuda Compiler Driver 2.2 + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Xlinker ' + if test -n "$_LT_TAGVAR(lt_prog_compiler_pic, $1)"; then + _LT_TAGVAR(lt_prog_compiler_pic, $1)="-Xcompiler $_LT_TAGVAR(lt_prog_compiler_pic, $1)" + fi + ;; + esac + else + # PORTME Check for flag to pass linker flags through the system compiler. + case $host_os in + aix*) + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' + if test "$host_cpu" = ia64; then + # AIX 5 now supports IA64 processor + _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' + else + _LT_TAGVAR(lt_prog_compiler_static, $1)='-bnso -bI:/lib/syscalls.exp' + fi + ;; + + mingw* | cygwin* | pw32* | os2* | cegcc*) + # This hack is so that the source file can tell whether it is being + # built for inclusion in a dll (and should export symbols for example). + m4_if([$1], [GCJ], [], + [_LT_TAGVAR(lt_prog_compiler_pic, $1)='-DDLL_EXPORT']) + ;; + + hpux9* | hpux10* | hpux11*) + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' + # PIC is the default for IA64 HP-UX and 64-bit HP-UX, but + # not for PA HP-UX. + case $host_cpu in + hppa*64*|ia64*) + # +Z the default + ;; + *) + _LT_TAGVAR(lt_prog_compiler_pic, $1)='+Z' + ;; + esac + # Is there a better lt_prog_compiler_static that works with the bundled CC? + _LT_TAGVAR(lt_prog_compiler_static, $1)='${wl}-a ${wl}archive' + ;; + + irix5* | irix6* | nonstopux*) + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' + # PIC (with -KPIC) is the default. + _LT_TAGVAR(lt_prog_compiler_static, $1)='-non_shared' + ;; + + linux* | k*bsd*-gnu | kopensolaris*-gnu) + case $cc_basename in + # old Intel for x86_64 which still supported -KPIC. + ecc*) + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC' + _LT_TAGVAR(lt_prog_compiler_static, $1)='-static' + ;; + # icc used to be incompatible with GCC. + # ICC 10 doesn't accept -KPIC any more. + icc* | ifort*) + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC' + _LT_TAGVAR(lt_prog_compiler_static, $1)='-static' + ;; + # Lahey Fortran 8.1. + lf95*) + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' + _LT_TAGVAR(lt_prog_compiler_pic, $1)='--shared' + _LT_TAGVAR(lt_prog_compiler_static, $1)='--static' + ;; + nagfor*) + # NAG Fortran compiler + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,-Wl,,' + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-PIC' + _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' + ;; + pgcc* | pgf77* | pgf90* | pgf95* | pgfortran*) + # Portland Group compilers (*not* the Pentium gcc compiler, + # which looks to be a dead project) + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fpic' + _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' + ;; + ccc*) + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' + # All Alpha code is PIC. + _LT_TAGVAR(lt_prog_compiler_static, $1)='-non_shared' + ;; + xl* | bgxl* | bgf* | mpixl*) + # IBM XL C 8.0/Fortran 10.1, 11.1 on PPC and BlueGene + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-qpic' + _LT_TAGVAR(lt_prog_compiler_static, $1)='-qstaticlink' + ;; + *) + case `$CC -V 2>&1 | sed 5q` in + *Sun\ Ceres\ Fortran* | *Sun*Fortran*\ [[1-7]].* | *Sun*Fortran*\ 8.[[0-3]]*) + # Sun Fortran 8.3 passes all unrecognized flags to the linker + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC' + _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' + _LT_TAGVAR(lt_prog_compiler_wl, $1)='' + ;; + *Sun\ F* | *Sun*Fortran*) + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC' + _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Qoption ld ' + ;; + *Sun\ C*) + # Sun C 5.9 + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC' + _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' + ;; + *Intel*\ [[CF]]*Compiler*) + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC' + _LT_TAGVAR(lt_prog_compiler_static, $1)='-static' + ;; + *Portland\ Group*) + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fpic' + _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' + ;; + esac + ;; + esac + ;; + + newsos6) + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC' + _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' + ;; + + *nto* | *qnx*) + # QNX uses GNU C++, but need to define -shared option too, otherwise + # it will coredump. + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC -shared' + ;; + + osf3* | osf4* | osf5*) + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' + # All OSF/1 code is PIC. + _LT_TAGVAR(lt_prog_compiler_static, $1)='-non_shared' + ;; + + rdos*) + _LT_TAGVAR(lt_prog_compiler_static, $1)='-non_shared' + ;; + + solaris*) + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC' + _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' + case $cc_basename in + f77* | f90* | f95* | sunf77* | sunf90* | sunf95*) + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Qoption ld ';; + *) + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,';; + esac + ;; + + sunos4*) + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Qoption ld ' + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-PIC' + _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' + ;; + + sysv4 | sysv4.2uw2* | sysv4.3*) + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC' + _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' + ;; + + sysv4*MP*) + if test -d /usr/nec ;then + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-Kconform_pic' + _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' + fi + ;; + + sysv5* | unixware* | sco3.2v5* | sco5v6* | OpenUNIX*) + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC' + _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' + ;; + + unicos*) + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' + _LT_TAGVAR(lt_prog_compiler_can_build_shared, $1)=no + ;; + + uts4*) + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-pic' + _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' + ;; + + *) + _LT_TAGVAR(lt_prog_compiler_can_build_shared, $1)=no + ;; + esac + fi +]) +case $host_os in + # For platforms which do not support PIC, -DPIC is meaningless: + *djgpp*) + _LT_TAGVAR(lt_prog_compiler_pic, $1)= + ;; + *) + _LT_TAGVAR(lt_prog_compiler_pic, $1)="$_LT_TAGVAR(lt_prog_compiler_pic, $1)@&t@m4_if([$1],[],[ -DPIC],[m4_if([$1],[CXX],[ -DPIC],[])])" + ;; +esac + +AC_CACHE_CHECK([for $compiler option to produce PIC], + [_LT_TAGVAR(lt_cv_prog_compiler_pic, $1)], + [_LT_TAGVAR(lt_cv_prog_compiler_pic, $1)=$_LT_TAGVAR(lt_prog_compiler_pic, $1)]) +_LT_TAGVAR(lt_prog_compiler_pic, $1)=$_LT_TAGVAR(lt_cv_prog_compiler_pic, $1) + +# +# Check to make sure the PIC flag actually works. +# +if test -n "$_LT_TAGVAR(lt_prog_compiler_pic, $1)"; then + _LT_COMPILER_OPTION([if $compiler PIC flag $_LT_TAGVAR(lt_prog_compiler_pic, $1) works], + [_LT_TAGVAR(lt_cv_prog_compiler_pic_works, $1)], + [$_LT_TAGVAR(lt_prog_compiler_pic, $1)@&t@m4_if([$1],[],[ -DPIC],[m4_if([$1],[CXX],[ -DPIC],[])])], [], + [case $_LT_TAGVAR(lt_prog_compiler_pic, $1) in + "" | " "*) ;; + *) _LT_TAGVAR(lt_prog_compiler_pic, $1)=" $_LT_TAGVAR(lt_prog_compiler_pic, $1)" ;; + esac], + [_LT_TAGVAR(lt_prog_compiler_pic, $1)= + _LT_TAGVAR(lt_prog_compiler_can_build_shared, $1)=no]) +fi +_LT_TAGDECL([pic_flag], [lt_prog_compiler_pic], [1], + [Additional compiler flags for building library objects]) + +_LT_TAGDECL([wl], [lt_prog_compiler_wl], [1], + [How to pass a linker flag through the compiler]) +# +# Check to make sure the static flag actually works. +# +wl=$_LT_TAGVAR(lt_prog_compiler_wl, $1) eval lt_tmp_static_flag=\"$_LT_TAGVAR(lt_prog_compiler_static, $1)\" +_LT_LINKER_OPTION([if $compiler static flag $lt_tmp_static_flag works], + _LT_TAGVAR(lt_cv_prog_compiler_static_works, $1), + $lt_tmp_static_flag, + [], + [_LT_TAGVAR(lt_prog_compiler_static, $1)=]) +_LT_TAGDECL([link_static_flag], [lt_prog_compiler_static], [1], + [Compiler flag to prevent dynamic linking]) +])# _LT_COMPILER_PIC + + +# _LT_LINKER_SHLIBS([TAGNAME]) +# ---------------------------- +# See if the linker supports building shared libraries. +m4_defun([_LT_LINKER_SHLIBS], +[AC_REQUIRE([LT_PATH_LD])dnl +AC_REQUIRE([LT_PATH_NM])dnl +m4_require([_LT_PATH_MANIFEST_TOOL])dnl +m4_require([_LT_FILEUTILS_DEFAULTS])dnl +m4_require([_LT_DECL_EGREP])dnl +m4_require([_LT_DECL_SED])dnl +m4_require([_LT_CMD_GLOBAL_SYMBOLS])dnl +m4_require([_LT_TAG_COMPILER])dnl +AC_MSG_CHECKING([whether the $compiler linker ($LD) supports shared libraries]) +m4_if([$1], [CXX], [ + _LT_TAGVAR(export_symbols_cmds, $1)='$NM $libobjs $convenience | $global_symbol_pipe | $SED '\''s/.* //'\'' | sort | uniq > $export_symbols' + _LT_TAGVAR(exclude_expsyms, $1)=['_GLOBAL_OFFSET_TABLE_|_GLOBAL__F[ID]_.*'] + case $host_os in + aix[[4-9]]*) + # If we're using GNU nm, then we don't want the "-C" option. + # -C means demangle to AIX nm, but means don't demangle with GNU nm + # Also, AIX nm treats weak defined symbols like other global defined + # symbols, whereas GNU nm marks them as "W". + if $NM -V 2>&1 | $GREP 'GNU' > /dev/null; then + _LT_TAGVAR(export_symbols_cmds, $1)='$NM -Bpg $libobjs $convenience | awk '\''{ if (((\$ 2 == "T") || (\$ 2 == "D") || (\$ 2 == "B") || (\$ 2 == "W")) && ([substr](\$ 3,1,1) != ".")) { print \$ 3 } }'\'' | sort -u > $export_symbols' + else + _LT_TAGVAR(export_symbols_cmds, $1)='$NM -BCpg $libobjs $convenience | awk '\''{ if (((\$ 2 == "T") || (\$ 2 == "D") || (\$ 2 == "B")) && ([substr](\$ 3,1,1) != ".")) { print \$ 3 } }'\'' | sort -u > $export_symbols' + fi + ;; + pw32*) + _LT_TAGVAR(export_symbols_cmds, $1)="$ltdll_cmds" + ;; + cygwin* | mingw* | cegcc*) + case $cc_basename in + cl*) + _LT_TAGVAR(exclude_expsyms, $1)='_NULL_IMPORT_DESCRIPTOR|_IMPORT_DESCRIPTOR_.*' + ;; + *) + _LT_TAGVAR(export_symbols_cmds, $1)='$NM $libobjs $convenience | $global_symbol_pipe | $SED -e '\''/^[[BCDGRS]][[ ]]/s/.*[[ ]]\([[^ ]]*\)/\1 DATA/;s/^.*[[ ]]__nm__\([[^ ]]*\)[[ ]][[^ ]]*/\1 DATA/;/^I[[ ]]/d;/^[[AITW]][[ ]]/s/.* //'\'' | sort | uniq > $export_symbols' + _LT_TAGVAR(exclude_expsyms, $1)=['[_]+GLOBAL_OFFSET_TABLE_|[_]+GLOBAL__[FID]_.*|[_]+head_[A-Za-z0-9_]+_dll|[A-Za-z0-9_]+_dll_iname'] + ;; + esac + ;; + *) + _LT_TAGVAR(export_symbols_cmds, $1)='$NM $libobjs $convenience | $global_symbol_pipe | $SED '\''s/.* //'\'' | sort | uniq > $export_symbols' + ;; + esac +], [ + runpath_var= + _LT_TAGVAR(allow_undefined_flag, $1)= + _LT_TAGVAR(always_export_symbols, $1)=no + _LT_TAGVAR(archive_cmds, $1)= + _LT_TAGVAR(archive_expsym_cmds, $1)= + _LT_TAGVAR(compiler_needs_object, $1)=no + _LT_TAGVAR(enable_shared_with_static_runtimes, $1)=no + _LT_TAGVAR(export_dynamic_flag_spec, $1)= + _LT_TAGVAR(export_symbols_cmds, $1)='$NM $libobjs $convenience | $global_symbol_pipe | $SED '\''s/.* //'\'' | sort | uniq > $export_symbols' + _LT_TAGVAR(hardcode_automatic, $1)=no + _LT_TAGVAR(hardcode_direct, $1)=no + _LT_TAGVAR(hardcode_direct_absolute, $1)=no + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)= + _LT_TAGVAR(hardcode_libdir_separator, $1)= + _LT_TAGVAR(hardcode_minus_L, $1)=no + _LT_TAGVAR(hardcode_shlibpath_var, $1)=unsupported + _LT_TAGVAR(inherit_rpath, $1)=no + _LT_TAGVAR(link_all_deplibs, $1)=unknown + _LT_TAGVAR(module_cmds, $1)= + _LT_TAGVAR(module_expsym_cmds, $1)= + _LT_TAGVAR(old_archive_from_new_cmds, $1)= + _LT_TAGVAR(old_archive_from_expsyms_cmds, $1)= + _LT_TAGVAR(thread_safe_flag_spec, $1)= + _LT_TAGVAR(whole_archive_flag_spec, $1)= + # include_expsyms should be a list of space-separated symbols to be *always* + # included in the symbol list + _LT_TAGVAR(include_expsyms, $1)= + # exclude_expsyms can be an extended regexp of symbols to exclude + # it will be wrapped by ` (' and `)$', so one must not match beginning or + # end of line. Example: `a|bc|.*d.*' will exclude the symbols `a' and `bc', + # as well as any symbol that contains `d'. + _LT_TAGVAR(exclude_expsyms, $1)=['_GLOBAL_OFFSET_TABLE_|_GLOBAL__F[ID]_.*'] + # Although _GLOBAL_OFFSET_TABLE_ is a valid symbol C name, most a.out + # platforms (ab)use it in PIC code, but their linkers get confused if + # the symbol is explicitly referenced. Since portable code cannot + # rely on this symbol name, it's probably fine to never include it in + # preloaded symbol tables. + # Exclude shared library initialization/finalization symbols. +dnl Note also adjust exclude_expsyms for C++ above. + extract_expsyms_cmds= + + case $host_os in + cygwin* | mingw* | pw32* | cegcc*) + # FIXME: the MSVC++ port hasn't been tested in a loooong time + # When not using gcc, we currently assume that we are using + # Microsoft Visual C++. + if test "$GCC" != yes; then + with_gnu_ld=no + fi + ;; + interix*) + # we just hope/assume this is gcc and not c89 (= MSVC++) + with_gnu_ld=yes + ;; + openbsd*) + with_gnu_ld=no + ;; + esac + + _LT_TAGVAR(ld_shlibs, $1)=yes + + # On some targets, GNU ld is compatible enough with the native linker + # that we're better off using the native interface for both. + lt_use_gnu_ld_interface=no + if test "$with_gnu_ld" = yes; then + case $host_os in + aix*) + # The AIX port of GNU ld has always aspired to compatibility + # with the native linker. However, as the warning in the GNU ld + # block says, versions before 2.19.5* couldn't really create working + # shared libraries, regardless of the interface used. + case `$LD -v 2>&1` in + *\ \(GNU\ Binutils\)\ 2.19.5*) ;; + *\ \(GNU\ Binutils\)\ 2.[[2-9]]*) ;; + *\ \(GNU\ Binutils\)\ [[3-9]]*) ;; + *) + lt_use_gnu_ld_interface=yes + ;; + esac + ;; + *) + lt_use_gnu_ld_interface=yes + ;; + esac + fi + + if test "$lt_use_gnu_ld_interface" = yes; then + # If archive_cmds runs LD, not CC, wlarc should be empty + wlarc='${wl}' + + # Set some defaults for GNU ld with shared library support. These + # are reset later if shared libraries are not supported. Putting them + # here allows them to be overridden if necessary. + runpath_var=LD_RUN_PATH + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath ${wl}$libdir' + _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}--export-dynamic' + # ancient GNU ld didn't support --whole-archive et. al. + if $LD --help 2>&1 | $GREP 'no-whole-archive' > /dev/null; then + _LT_TAGVAR(whole_archive_flag_spec, $1)="$wlarc"'--whole-archive$convenience '"$wlarc"'--no-whole-archive' + else + _LT_TAGVAR(whole_archive_flag_spec, $1)= + fi + supports_anon_versioning=no + case `$LD -v 2>&1` in + *GNU\ gold*) supports_anon_versioning=yes ;; + *\ [[01]].* | *\ 2.[[0-9]].* | *\ 2.10.*) ;; # catch versions < 2.11 + *\ 2.11.93.0.2\ *) supports_anon_versioning=yes ;; # RH7.3 ... + *\ 2.11.92.0.12\ *) supports_anon_versioning=yes ;; # Mandrake 8.2 ... + *\ 2.11.*) ;; # other 2.11 versions + *) supports_anon_versioning=yes ;; + esac + + # See if GNU ld supports shared libraries. + case $host_os in + aix[[3-9]]*) + # On AIX/PPC, the GNU linker is very broken + if test "$host_cpu" != ia64; then + _LT_TAGVAR(ld_shlibs, $1)=no + cat <<_LT_EOF 1>&2 + +*** Warning: the GNU linker, at least up to release 2.19, is reported +*** to be unable to reliably create shared libraries on AIX. +*** Therefore, libtool is disabling shared libraries support. If you +*** really care for shared libraries, you may want to install binutils +*** 2.20 or above, or modify your PATH so that a non-GNU linker is found. +*** You will then need to restart the configuration process. + +_LT_EOF + fi + ;; + + amigaos*) + case $host_cpu in + powerpc) + # see comment about AmigaOS4 .so support + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib' + _LT_TAGVAR(archive_expsym_cmds, $1)='' + ;; + m68k) + _LT_TAGVAR(archive_cmds, $1)='$RM $output_objdir/a2ixlibrary.data~$ECHO "#define NAME $libname" > $output_objdir/a2ixlibrary.data~$ECHO "#define LIBRARY_ID 1" >> $output_objdir/a2ixlibrary.data~$ECHO "#define VERSION $major" >> $output_objdir/a2ixlibrary.data~$ECHO "#define REVISION $revision" >> $output_objdir/a2ixlibrary.data~$AR $AR_FLAGS $lib $libobjs~$RANLIB $lib~(cd $output_objdir && a2ixlibrary -32)' + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir' + _LT_TAGVAR(hardcode_minus_L, $1)=yes + ;; + esac + ;; + + beos*) + if $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then + _LT_TAGVAR(allow_undefined_flag, $1)=unsupported + # Joseph Beckenbach says some releases of gcc + # support --undefined. This deserves some investigation. FIXME + _LT_TAGVAR(archive_cmds, $1)='$CC -nostart $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib' + else + _LT_TAGVAR(ld_shlibs, $1)=no + fi + ;; + + cygwin* | mingw* | pw32* | cegcc*) + # _LT_TAGVAR(hardcode_libdir_flag_spec, $1) is actually meaningless, + # as there is no search path for DLLs. + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir' + _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}--export-all-symbols' + _LT_TAGVAR(allow_undefined_flag, $1)=unsupported + _LT_TAGVAR(always_export_symbols, $1)=no + _LT_TAGVAR(enable_shared_with_static_runtimes, $1)=yes + _LT_TAGVAR(export_symbols_cmds, $1)='$NM $libobjs $convenience | $global_symbol_pipe | $SED -e '\''/^[[BCDGRS]][[ ]]/s/.*[[ ]]\([[^ ]]*\)/\1 DATA/;s/^.*[[ ]]__nm__\([[^ ]]*\)[[ ]][[^ ]]*/\1 DATA/;/^I[[ ]]/d;/^[[AITW]][[ ]]/s/.* //'\'' | sort | uniq > $export_symbols' + _LT_TAGVAR(exclude_expsyms, $1)=['[_]+GLOBAL_OFFSET_TABLE_|[_]+GLOBAL__[FID]_.*|[_]+head_[A-Za-z0-9_]+_dll|[A-Za-z0-9_]+_dll_iname'] + + if $LD --help 2>&1 | $GREP 'auto-import' > /dev/null; then + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags -o $output_objdir/$soname ${wl}--enable-auto-image-base -Xlinker --out-implib -Xlinker $lib' + # If the export-symbols file already is a .def file (1st line + # is EXPORTS), use it as is; otherwise, prepend... + _LT_TAGVAR(archive_expsym_cmds, $1)='if test "x`$SED 1q $export_symbols`" = xEXPORTS; then + cp $export_symbols $output_objdir/$soname.def; + else + echo EXPORTS > $output_objdir/$soname.def; + cat $export_symbols >> $output_objdir/$soname.def; + fi~ + $CC -shared $output_objdir/$soname.def $libobjs $deplibs $compiler_flags -o $output_objdir/$soname ${wl}--enable-auto-image-base -Xlinker --out-implib -Xlinker $lib' + else + _LT_TAGVAR(ld_shlibs, $1)=no + fi + ;; + + haiku*) + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib' + _LT_TAGVAR(link_all_deplibs, $1)=yes + ;; + + interix[[3-9]]*) + _LT_TAGVAR(hardcode_direct, $1)=no + _LT_TAGVAR(hardcode_shlibpath_var, $1)=no + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath,$libdir' + _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}-E' + # Hack: On Interix 3.x, we cannot compile PIC because of a broken gcc. + # Instead, shared libraries are loaded at an image base (0x10000000 by + # default) and relocated if they conflict, which is a slow very memory + # consuming and fragmenting process. To avoid this, we pick a random, + # 256 KiB-aligned image base between 0x50000000 and 0x6FFC0000 at link + # time. Moving up from 0x10000000 also allows more sbrk(2) space. + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-h,$soname ${wl}--image-base,`expr ${RANDOM-$$} % 4096 / 2 \* 262144 + 1342177280` -o $lib' + _LT_TAGVAR(archive_expsym_cmds, $1)='sed "s,^,_," $export_symbols >$output_objdir/$soname.expsym~$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-h,$soname ${wl}--retain-symbols-file,$output_objdir/$soname.expsym ${wl}--image-base,`expr ${RANDOM-$$} % 4096 / 2 \* 262144 + 1342177280` -o $lib' + ;; + + gnu* | linux* | tpf* | k*bsd*-gnu | kopensolaris*-gnu) + tmp_diet=no + if test "$host_os" = linux-dietlibc; then + case $cc_basename in + diet\ *) tmp_diet=yes;; # linux-dietlibc with static linking (!diet-dyn) + esac + fi + if $LD --help 2>&1 | $EGREP ': supported targets:.* elf' > /dev/null \ + && test "$tmp_diet" = no + then + tmp_addflag=' $pic_flag' + tmp_sharedflag='-shared' + case $cc_basename,$host_cpu in + pgcc*) # Portland Group C compiler + _LT_TAGVAR(whole_archive_flag_spec, $1)='${wl}--whole-archive`for conv in $convenience\"\"; do test -n \"$conv\" && new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` ${wl}--no-whole-archive' + tmp_addflag=' $pic_flag' + ;; + pgf77* | pgf90* | pgf95* | pgfortran*) + # Portland Group f77 and f90 compilers + _LT_TAGVAR(whole_archive_flag_spec, $1)='${wl}--whole-archive`for conv in $convenience\"\"; do test -n \"$conv\" && new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` ${wl}--no-whole-archive' + tmp_addflag=' $pic_flag -Mnomain' ;; + ecc*,ia64* | icc*,ia64*) # Intel C compiler on ia64 + tmp_addflag=' -i_dynamic' ;; + efc*,ia64* | ifort*,ia64*) # Intel Fortran compiler on ia64 + tmp_addflag=' -i_dynamic -nofor_main' ;; + ifc* | ifort*) # Intel Fortran compiler + tmp_addflag=' -nofor_main' ;; + lf95*) # Lahey Fortran 8.1 + _LT_TAGVAR(whole_archive_flag_spec, $1)= + tmp_sharedflag='--shared' ;; + xl[[cC]]* | bgxl[[cC]]* | mpixl[[cC]]*) # IBM XL C 8.0 on PPC (deal with xlf below) + tmp_sharedflag='-qmkshrobj' + tmp_addflag= ;; + nvcc*) # Cuda Compiler Driver 2.2 + _LT_TAGVAR(whole_archive_flag_spec, $1)='${wl}--whole-archive`for conv in $convenience\"\"; do test -n \"$conv\" && new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` ${wl}--no-whole-archive' + _LT_TAGVAR(compiler_needs_object, $1)=yes + ;; + esac + case `$CC -V 2>&1 | sed 5q` in + *Sun\ C*) # Sun C 5.9 + _LT_TAGVAR(whole_archive_flag_spec, $1)='${wl}--whole-archive`new_convenience=; for conv in $convenience\"\"; do test -z \"$conv\" || new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` ${wl}--no-whole-archive' + _LT_TAGVAR(compiler_needs_object, $1)=yes + tmp_sharedflag='-G' ;; + *Sun\ F*) # Sun Fortran 8.3 + tmp_sharedflag='-G' ;; + esac + _LT_TAGVAR(archive_cmds, $1)='$CC '"$tmp_sharedflag""$tmp_addflag"' $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib' + + if test "x$supports_anon_versioning" = xyes; then + _LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $output_objdir/$libname.ver~ + cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $output_objdir/$libname.ver~ + echo "local: *; };" >> $output_objdir/$libname.ver~ + $CC '"$tmp_sharedflag""$tmp_addflag"' $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-version-script ${wl}$output_objdir/$libname.ver -o $lib' + fi + + case $cc_basename in + xlf* | bgf* | bgxlf* | mpixlf*) + # IBM XL Fortran 10.1 on PPC cannot create shared libs itself + _LT_TAGVAR(whole_archive_flag_spec, $1)='--whole-archive$convenience --no-whole-archive' + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath ${wl}$libdir' + _LT_TAGVAR(archive_cmds, $1)='$LD -shared $libobjs $deplibs $linker_flags -soname $soname -o $lib' + if test "x$supports_anon_versioning" = xyes; then + _LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $output_objdir/$libname.ver~ + cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $output_objdir/$libname.ver~ + echo "local: *; };" >> $output_objdir/$libname.ver~ + $LD -shared $libobjs $deplibs $linker_flags -soname $soname -version-script $output_objdir/$libname.ver -o $lib' + fi + ;; + esac + else + _LT_TAGVAR(ld_shlibs, $1)=no + fi + ;; + + netbsd*) + if echo __ELF__ | $CC -E - | $GREP __ELF__ >/dev/null; then + _LT_TAGVAR(archive_cmds, $1)='$LD -Bshareable $libobjs $deplibs $linker_flags -o $lib' + wlarc= + else + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib' + _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib' + fi + ;; + + solaris*) + if $LD -v 2>&1 | $GREP 'BFD 2\.8' > /dev/null; then + _LT_TAGVAR(ld_shlibs, $1)=no + cat <<_LT_EOF 1>&2 + +*** Warning: The releases 2.8.* of the GNU linker cannot reliably +*** create shared libraries on Solaris systems. Therefore, libtool +*** is disabling shared libraries support. We urge you to upgrade GNU +*** binutils to release 2.9.1 or newer. Another option is to modify +*** your PATH or compiler configuration so that the native linker is +*** used, and then restart. + +_LT_EOF + elif $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib' + _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib' + else + _LT_TAGVAR(ld_shlibs, $1)=no + fi + ;; + + sysv5* | sco3.2v5* | sco5v6* | unixware* | OpenUNIX*) + case `$LD -v 2>&1` in + *\ [[01]].* | *\ 2.[[0-9]].* | *\ 2.1[[0-5]].*) + _LT_TAGVAR(ld_shlibs, $1)=no + cat <<_LT_EOF 1>&2 + +*** Warning: Releases of the GNU linker prior to 2.16.91.0.3 can not +*** reliably create shared libraries on SCO systems. Therefore, libtool +*** is disabling shared libraries support. We urge you to upgrade GNU +*** binutils to release 2.16.91.0.3 or newer. Another option is to modify +*** your PATH or compiler configuration so that the native linker is +*** used, and then restart. + +_LT_EOF + ;; + *) + # For security reasons, it is highly recommended that you always + # use absolute paths for naming shared libraries, and exclude the + # DT_RUNPATH tag from executables and libraries. But doing so + # requires that you compile everything twice, which is a pain. + if $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath ${wl}$libdir' + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib' + _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib' + else + _LT_TAGVAR(ld_shlibs, $1)=no + fi + ;; + esac + ;; + + sunos4*) + _LT_TAGVAR(archive_cmds, $1)='$LD -assert pure-text -Bshareable -o $lib $libobjs $deplibs $linker_flags' + wlarc= + _LT_TAGVAR(hardcode_direct, $1)=yes + _LT_TAGVAR(hardcode_shlibpath_var, $1)=no + ;; + + *) + if $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib' + _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib' + else + _LT_TAGVAR(ld_shlibs, $1)=no + fi + ;; + esac + + if test "$_LT_TAGVAR(ld_shlibs, $1)" = no; then + runpath_var= + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)= + _LT_TAGVAR(export_dynamic_flag_spec, $1)= + _LT_TAGVAR(whole_archive_flag_spec, $1)= + fi + else + # PORTME fill in a description of your system's linker (not GNU ld) + case $host_os in + aix3*) + _LT_TAGVAR(allow_undefined_flag, $1)=unsupported + _LT_TAGVAR(always_export_symbols, $1)=yes + _LT_TAGVAR(archive_expsym_cmds, $1)='$LD -o $output_objdir/$soname $libobjs $deplibs $linker_flags -bE:$export_symbols -T512 -H512 -bM:SRE~$AR $AR_FLAGS $lib $output_objdir/$soname' + # Note: this linker hardcodes the directories in LIBPATH if there + # are no directories specified by -L. + _LT_TAGVAR(hardcode_minus_L, $1)=yes + if test "$GCC" = yes && test -z "$lt_prog_compiler_static"; then + # Neither direct hardcoding nor static linking is supported with a + # broken collect2. + _LT_TAGVAR(hardcode_direct, $1)=unsupported + fi + ;; + + aix[[4-9]]*) + if test "$host_cpu" = ia64; then + # On IA64, the linker does run time linking by default, so we don't + # have to do anything special. + aix_use_runtimelinking=no + exp_sym_flag='-Bexport' + no_entry_flag="" + else + # If we're using GNU nm, then we don't want the "-C" option. + # -C means demangle to AIX nm, but means don't demangle with GNU nm + # Also, AIX nm treats weak defined symbols like other global + # defined symbols, whereas GNU nm marks them as "W". + if $NM -V 2>&1 | $GREP 'GNU' > /dev/null; then + _LT_TAGVAR(export_symbols_cmds, $1)='$NM -Bpg $libobjs $convenience | awk '\''{ if (((\$ 2 == "T") || (\$ 2 == "D") || (\$ 2 == "B") || (\$ 2 == "W")) && ([substr](\$ 3,1,1) != ".")) { print \$ 3 } }'\'' | sort -u > $export_symbols' + else + _LT_TAGVAR(export_symbols_cmds, $1)='$NM -BCpg $libobjs $convenience | awk '\''{ if (((\$ 2 == "T") || (\$ 2 == "D") || (\$ 2 == "B")) && ([substr](\$ 3,1,1) != ".")) { print \$ 3 } }'\'' | sort -u > $export_symbols' + fi + aix_use_runtimelinking=no + + # Test if we are trying to use run time linking or normal + # AIX style linking. If -brtl is somewhere in LDFLAGS, we + # need to do runtime linking. + case $host_os in aix4.[[23]]|aix4.[[23]].*|aix[[5-9]]*) + for ld_flag in $LDFLAGS; do + if (test $ld_flag = "-brtl" || test $ld_flag = "-Wl,-brtl"); then + aix_use_runtimelinking=yes + break + fi + done + ;; + esac + + exp_sym_flag='-bexport' + no_entry_flag='-bnoentry' + fi + + # When large executables or shared objects are built, AIX ld can + # have problems creating the table of contents. If linking a library + # or program results in "error TOC overflow" add -mminimal-toc to + # CXXFLAGS/CFLAGS for g++/gcc. In the cases where that is not + # enough to fix the problem, add -Wl,-bbigtoc to LDFLAGS. + + _LT_TAGVAR(archive_cmds, $1)='' + _LT_TAGVAR(hardcode_direct, $1)=yes + _LT_TAGVAR(hardcode_direct_absolute, $1)=yes + _LT_TAGVAR(hardcode_libdir_separator, $1)=':' + _LT_TAGVAR(link_all_deplibs, $1)=yes + _LT_TAGVAR(file_list_spec, $1)='${wl}-f,' + + if test "$GCC" = yes; then + case $host_os in aix4.[[012]]|aix4.[[012]].*) + # We only want to do this on AIX 4.2 and lower, the check + # below for broken collect2 doesn't work under 4.3+ + collect2name=`${CC} -print-prog-name=collect2` + if test -f "$collect2name" && + strings "$collect2name" | $GREP resolve_lib_name >/dev/null + then + # We have reworked collect2 + : + else + # We have old collect2 + _LT_TAGVAR(hardcode_direct, $1)=unsupported + # It fails to find uninstalled libraries when the uninstalled + # path is not listed in the libpath. Setting hardcode_minus_L + # to unsupported forces relinking + _LT_TAGVAR(hardcode_minus_L, $1)=yes + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir' + _LT_TAGVAR(hardcode_libdir_separator, $1)= + fi + ;; + esac + shared_flag='-shared' + if test "$aix_use_runtimelinking" = yes; then + shared_flag="$shared_flag "'${wl}-G' + fi + else + # not using gcc + if test "$host_cpu" = ia64; then + # VisualAge C++, Version 5.5 for AIX 5L for IA-64, Beta 3 Release + # chokes on -Wl,-G. The following line is correct: + shared_flag='-G' + else + if test "$aix_use_runtimelinking" = yes; then + shared_flag='${wl}-G' + else + shared_flag='${wl}-bM:SRE' + fi + fi + fi + + _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}-bexpall' + # It seems that -bexpall does not export symbols beginning with + # underscore (_), so it is better to generate a list of symbols to export. + _LT_TAGVAR(always_export_symbols, $1)=yes + if test "$aix_use_runtimelinking" = yes; then + # Warning - without using the other runtime loading flags (-brtl), + # -berok will link without error, but may produce a broken library. + _LT_TAGVAR(allow_undefined_flag, $1)='-berok' + # Determine the default libpath from the value encoded in an + # empty executable. + _LT_SYS_MODULE_PATH_AIX([$1]) + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-blibpath:$libdir:'"$aix_libpath" + _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -o $output_objdir/$soname $libobjs $deplibs '"\${wl}$no_entry_flag"' $compiler_flags `if test "x${allow_undefined_flag}" != "x"; then func_echo_all "${wl}${allow_undefined_flag}"; else :; fi` '"\${wl}$exp_sym_flag:\$export_symbols $shared_flag" + else + if test "$host_cpu" = ia64; then + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-R $libdir:/usr/lib:/lib' + _LT_TAGVAR(allow_undefined_flag, $1)="-z nodefs" + _LT_TAGVAR(archive_expsym_cmds, $1)="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs '"\${wl}$no_entry_flag"' $compiler_flags ${wl}${allow_undefined_flag} '"\${wl}$exp_sym_flag:\$export_symbols" + else + # Determine the default libpath from the value encoded in an + # empty executable. + _LT_SYS_MODULE_PATH_AIX([$1]) + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-blibpath:$libdir:'"$aix_libpath" + # Warning - without using the other run time loading flags, + # -berok will link without error, but may produce a broken library. + _LT_TAGVAR(no_undefined_flag, $1)=' ${wl}-bernotok' + _LT_TAGVAR(allow_undefined_flag, $1)=' ${wl}-berok' + if test "$with_gnu_ld" = yes; then + # We only use this code for GNU lds that support --whole-archive. + _LT_TAGVAR(whole_archive_flag_spec, $1)='${wl}--whole-archive$convenience ${wl}--no-whole-archive' + else + # Exported symbols can be pulled into shared objects from archives + _LT_TAGVAR(whole_archive_flag_spec, $1)='$convenience' + fi + _LT_TAGVAR(archive_cmds_need_lc, $1)=yes + # This is similar to how AIX traditionally builds its shared libraries. + _LT_TAGVAR(archive_expsym_cmds, $1)="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs ${wl}-bnoentry $compiler_flags ${wl}-bE:$export_symbols${allow_undefined_flag}~$AR $AR_FLAGS $output_objdir/$libname$release.a $output_objdir/$soname' + fi + fi + ;; + + amigaos*) + case $host_cpu in + powerpc) + # see comment about AmigaOS4 .so support + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib' + _LT_TAGVAR(archive_expsym_cmds, $1)='' + ;; + m68k) + _LT_TAGVAR(archive_cmds, $1)='$RM $output_objdir/a2ixlibrary.data~$ECHO "#define NAME $libname" > $output_objdir/a2ixlibrary.data~$ECHO "#define LIBRARY_ID 1" >> $output_objdir/a2ixlibrary.data~$ECHO "#define VERSION $major" >> $output_objdir/a2ixlibrary.data~$ECHO "#define REVISION $revision" >> $output_objdir/a2ixlibrary.data~$AR $AR_FLAGS $lib $libobjs~$RANLIB $lib~(cd $output_objdir && a2ixlibrary -32)' + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir' + _LT_TAGVAR(hardcode_minus_L, $1)=yes + ;; + esac + ;; + + bsdi[[45]]*) + _LT_TAGVAR(export_dynamic_flag_spec, $1)=-rdynamic + ;; + + cygwin* | mingw* | pw32* | cegcc*) + # When not using gcc, we currently assume that we are using + # Microsoft Visual C++. + # hardcode_libdir_flag_spec is actually meaningless, as there is + # no search path for DLLs. + case $cc_basename in + cl*) + # Native MSVC + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)=' ' + _LT_TAGVAR(allow_undefined_flag, $1)=unsupported + _LT_TAGVAR(always_export_symbols, $1)=yes + _LT_TAGVAR(file_list_spec, $1)='@' + # Tell ltmain to make .lib files, not .a files. + libext=lib + # Tell ltmain to make .dll files, not .so files. + shrext_cmds=".dll" + # FIXME: Setting linknames here is a bad hack. + _LT_TAGVAR(archive_cmds, $1)='$CC -o $output_objdir/$soname $libobjs $compiler_flags $deplibs -Wl,-dll~linknames=' + _LT_TAGVAR(archive_expsym_cmds, $1)='if test "x`$SED 1q $export_symbols`" = xEXPORTS; then + sed -n -e 's/\\\\\\\(.*\\\\\\\)/-link\\\ -EXPORT:\\\\\\\1/' -e '1\\\!p' < $export_symbols > $output_objdir/$soname.exp; + else + sed -e 's/\\\\\\\(.*\\\\\\\)/-link\\\ -EXPORT:\\\\\\\1/' < $export_symbols > $output_objdir/$soname.exp; + fi~ + $CC -o $tool_output_objdir$soname $libobjs $compiler_flags $deplibs "@$tool_output_objdir$soname.exp" -Wl,-DLL,-IMPLIB:"$tool_output_objdir$libname.dll.lib"~ + linknames=' + # The linker will not automatically build a static lib if we build a DLL. + # _LT_TAGVAR(old_archive_from_new_cmds, $1)='true' + _LT_TAGVAR(enable_shared_with_static_runtimes, $1)=yes + _LT_TAGVAR(exclude_expsyms, $1)='_NULL_IMPORT_DESCRIPTOR|_IMPORT_DESCRIPTOR_.*' + _LT_TAGVAR(export_symbols_cmds, $1)='$NM $libobjs $convenience | $global_symbol_pipe | $SED -e '\''/^[[BCDGRS]][[ ]]/s/.*[[ ]]\([[^ ]]*\)/\1,DATA/'\'' | $SED -e '\''/^[[AITW]][[ ]]/s/.*[[ ]]//'\'' | sort | uniq > $export_symbols' + # Don't use ranlib + _LT_TAGVAR(old_postinstall_cmds, $1)='chmod 644 $oldlib' + _LT_TAGVAR(postlink_cmds, $1)='lt_outputfile="@OUTPUT@"~ + lt_tool_outputfile="@TOOL_OUTPUT@"~ + case $lt_outputfile in + *.exe|*.EXE) ;; + *) + lt_outputfile="$lt_outputfile.exe" + lt_tool_outputfile="$lt_tool_outputfile.exe" + ;; + esac~ + if test "$MANIFEST_TOOL" != ":" && test -f "$lt_outputfile.manifest"; then + $MANIFEST_TOOL -manifest "$lt_tool_outputfile.manifest" -outputresource:"$lt_tool_outputfile" || exit 1; + $RM "$lt_outputfile.manifest"; + fi' + ;; + *) + # Assume MSVC wrapper + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)=' ' + _LT_TAGVAR(allow_undefined_flag, $1)=unsupported + # Tell ltmain to make .lib files, not .a files. + libext=lib + # Tell ltmain to make .dll files, not .so files. + shrext_cmds=".dll" + # FIXME: Setting linknames here is a bad hack. + _LT_TAGVAR(archive_cmds, $1)='$CC -o $lib $libobjs $compiler_flags `func_echo_all "$deplibs" | $SED '\''s/ -lc$//'\''` -link -dll~linknames=' + # The linker will automatically build a .lib file if we build a DLL. + _LT_TAGVAR(old_archive_from_new_cmds, $1)='true' + # FIXME: Should let the user specify the lib program. + _LT_TAGVAR(old_archive_cmds, $1)='lib -OUT:$oldlib$oldobjs$old_deplibs' + _LT_TAGVAR(enable_shared_with_static_runtimes, $1)=yes + ;; + esac + ;; + + darwin* | rhapsody*) + _LT_DARWIN_LINKER_FEATURES($1) + ;; + + dgux*) + _LT_TAGVAR(archive_cmds, $1)='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags' + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir' + _LT_TAGVAR(hardcode_shlibpath_var, $1)=no + ;; + + # FreeBSD 2.2.[012] allows us to include c++rt0.o to get C++ constructor + # support. Future versions do this automatically, but an explicit c++rt0.o + # does not break anything, and helps significantly (at the cost of a little + # extra space). + freebsd2.2*) + _LT_TAGVAR(archive_cmds, $1)='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags /usr/lib/c++rt0.o' + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-R$libdir' + _LT_TAGVAR(hardcode_direct, $1)=yes + _LT_TAGVAR(hardcode_shlibpath_var, $1)=no + ;; + + # Unfortunately, older versions of FreeBSD 2 do not have this feature. + freebsd2.*) + _LT_TAGVAR(archive_cmds, $1)='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags' + _LT_TAGVAR(hardcode_direct, $1)=yes + _LT_TAGVAR(hardcode_minus_L, $1)=yes + _LT_TAGVAR(hardcode_shlibpath_var, $1)=no + ;; + + # FreeBSD 3 and greater uses gcc -shared to do shared libraries. + freebsd* | dragonfly*) + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags' + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-R$libdir' + _LT_TAGVAR(hardcode_direct, $1)=yes + _LT_TAGVAR(hardcode_shlibpath_var, $1)=no + ;; + + hpux9*) + if test "$GCC" = yes; then + _LT_TAGVAR(archive_cmds, $1)='$RM $output_objdir/$soname~$CC -shared $pic_flag ${wl}+b ${wl}$install_libdir -o $output_objdir/$soname $libobjs $deplibs $compiler_flags~test $output_objdir/$soname = $lib || mv $output_objdir/$soname $lib' + else + _LT_TAGVAR(archive_cmds, $1)='$RM $output_objdir/$soname~$LD -b +b $install_libdir -o $output_objdir/$soname $libobjs $deplibs $linker_flags~test $output_objdir/$soname = $lib || mv $output_objdir/$soname $lib' + fi + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}+b ${wl}$libdir' + _LT_TAGVAR(hardcode_libdir_separator, $1)=: + _LT_TAGVAR(hardcode_direct, $1)=yes + + # hardcode_minus_L: Not really in the search PATH, + # but as the default location of the library. + _LT_TAGVAR(hardcode_minus_L, $1)=yes + _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}-E' + ;; + + hpux10*) + if test "$GCC" = yes && test "$with_gnu_ld" = no; then + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag ${wl}+h ${wl}$soname ${wl}+b ${wl}$install_libdir -o $lib $libobjs $deplibs $compiler_flags' + else + _LT_TAGVAR(archive_cmds, $1)='$LD -b +h $soname +b $install_libdir -o $lib $libobjs $deplibs $linker_flags' + fi + if test "$with_gnu_ld" = no; then + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}+b ${wl}$libdir' + _LT_TAGVAR(hardcode_libdir_separator, $1)=: + _LT_TAGVAR(hardcode_direct, $1)=yes + _LT_TAGVAR(hardcode_direct_absolute, $1)=yes + _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}-E' + # hardcode_minus_L: Not really in the search PATH, + # but as the default location of the library. + _LT_TAGVAR(hardcode_minus_L, $1)=yes + fi + ;; + + hpux11*) + if test "$GCC" = yes && test "$with_gnu_ld" = no; then + case $host_cpu in + hppa*64*) + _LT_TAGVAR(archive_cmds, $1)='$CC -shared ${wl}+h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags' + ;; + ia64*) + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag ${wl}+h ${wl}$soname ${wl}+nodefaultrpath -o $lib $libobjs $deplibs $compiler_flags' + ;; + *) + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag ${wl}+h ${wl}$soname ${wl}+b ${wl}$install_libdir -o $lib $libobjs $deplibs $compiler_flags' + ;; + esac + else + case $host_cpu in + hppa*64*) + _LT_TAGVAR(archive_cmds, $1)='$CC -b ${wl}+h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags' + ;; + ia64*) + _LT_TAGVAR(archive_cmds, $1)='$CC -b ${wl}+h ${wl}$soname ${wl}+nodefaultrpath -o $lib $libobjs $deplibs $compiler_flags' + ;; + *) + m4_if($1, [], [ + # Older versions of the 11.00 compiler do not understand -b yet + # (HP92453-01 A.11.01.20 doesn't, HP92453-01 B.11.X.35175-35176.GP does) + _LT_LINKER_OPTION([if $CC understands -b], + _LT_TAGVAR(lt_cv_prog_compiler__b, $1), [-b], + [_LT_TAGVAR(archive_cmds, $1)='$CC -b ${wl}+h ${wl}$soname ${wl}+b ${wl}$install_libdir -o $lib $libobjs $deplibs $compiler_flags'], + [_LT_TAGVAR(archive_cmds, $1)='$LD -b +h $soname +b $install_libdir -o $lib $libobjs $deplibs $linker_flags'])], + [_LT_TAGVAR(archive_cmds, $1)='$CC -b ${wl}+h ${wl}$soname ${wl}+b ${wl}$install_libdir -o $lib $libobjs $deplibs $compiler_flags']) + ;; + esac + fi + if test "$with_gnu_ld" = no; then + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}+b ${wl}$libdir' + _LT_TAGVAR(hardcode_libdir_separator, $1)=: + + case $host_cpu in + hppa*64*|ia64*) + _LT_TAGVAR(hardcode_direct, $1)=no + _LT_TAGVAR(hardcode_shlibpath_var, $1)=no + ;; + *) + _LT_TAGVAR(hardcode_direct, $1)=yes + _LT_TAGVAR(hardcode_direct_absolute, $1)=yes + _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}-E' + + # hardcode_minus_L: Not really in the search PATH, + # but as the default location of the library. + _LT_TAGVAR(hardcode_minus_L, $1)=yes + ;; + esac + fi + ;; + + irix5* | irix6* | nonstopux*) + if test "$GCC" = yes; then + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-soname ${wl}$soname `test -n "$verstring" && func_echo_all "${wl}-set_version ${wl}$verstring"` ${wl}-update_registry ${wl}${output_objdir}/so_locations -o $lib' + # Try to use the -exported_symbol ld option, if it does not + # work, assume that -exports_file does not work either and + # implicitly export all symbols. + # This should be the same for all languages, so no per-tag cache variable. + AC_CACHE_CHECK([whether the $host_os linker accepts -exported_symbol], + [lt_cv_irix_exported_symbol], + [save_LDFLAGS="$LDFLAGS" + LDFLAGS="$LDFLAGS -shared ${wl}-exported_symbol ${wl}foo ${wl}-update_registry ${wl}/dev/null" + AC_LINK_IFELSE( + [AC_LANG_SOURCE( + [AC_LANG_CASE([C], [[int foo (void) { return 0; }]], + [C++], [[int foo (void) { return 0; }]], + [Fortran 77], [[ + subroutine foo + end]], + [Fortran], [[ + subroutine foo + end]])])], + [lt_cv_irix_exported_symbol=yes], + [lt_cv_irix_exported_symbol=no]) + LDFLAGS="$save_LDFLAGS"]) + if test "$lt_cv_irix_exported_symbol" = yes; then + _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-soname ${wl}$soname `test -n "$verstring" && func_echo_all "${wl}-set_version ${wl}$verstring"` ${wl}-update_registry ${wl}${output_objdir}/so_locations ${wl}-exports_file ${wl}$export_symbols -o $lib' + fi + else + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry ${output_objdir}/so_locations -o $lib' + _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry ${output_objdir}/so_locations -exports_file $export_symbols -o $lib' + fi + _LT_TAGVAR(archive_cmds_need_lc, $1)='no' + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath ${wl}$libdir' + _LT_TAGVAR(hardcode_libdir_separator, $1)=: + _LT_TAGVAR(inherit_rpath, $1)=yes + _LT_TAGVAR(link_all_deplibs, $1)=yes + ;; + + netbsd*) + if echo __ELF__ | $CC -E - | $GREP __ELF__ >/dev/null; then + _LT_TAGVAR(archive_cmds, $1)='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags' # a.out + else + _LT_TAGVAR(archive_cmds, $1)='$LD -shared -o $lib $libobjs $deplibs $linker_flags' # ELF + fi + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-R$libdir' + _LT_TAGVAR(hardcode_direct, $1)=yes + _LT_TAGVAR(hardcode_shlibpath_var, $1)=no + ;; + + newsos6) + _LT_TAGVAR(archive_cmds, $1)='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags' + _LT_TAGVAR(hardcode_direct, $1)=yes + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath ${wl}$libdir' + _LT_TAGVAR(hardcode_libdir_separator, $1)=: + _LT_TAGVAR(hardcode_shlibpath_var, $1)=no + ;; + + *nto* | *qnx*) + ;; + + openbsd*) + if test -f /usr/libexec/ld.so; then + _LT_TAGVAR(hardcode_direct, $1)=yes + _LT_TAGVAR(hardcode_shlibpath_var, $1)=no + _LT_TAGVAR(hardcode_direct_absolute, $1)=yes + if test -z "`echo __ELF__ | $CC -E - | $GREP __ELF__`" || test "$host_os-$host_cpu" = "openbsd2.8-powerpc"; then + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags' + _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags ${wl}-retain-symbols-file,$export_symbols' + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath,$libdir' + _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}-E' + else + case $host_os in + openbsd[[01]].* | openbsd2.[[0-7]] | openbsd2.[[0-7]].*) + _LT_TAGVAR(archive_cmds, $1)='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags' + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-R$libdir' + ;; + *) + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags' + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath,$libdir' + ;; + esac + fi + else + _LT_TAGVAR(ld_shlibs, $1)=no + fi + ;; + + os2*) + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir' + _LT_TAGVAR(hardcode_minus_L, $1)=yes + _LT_TAGVAR(allow_undefined_flag, $1)=unsupported + _LT_TAGVAR(archive_cmds, $1)='$ECHO "LIBRARY $libname INITINSTANCE" > $output_objdir/$libname.def~$ECHO "DESCRIPTION \"$libname\"" >> $output_objdir/$libname.def~echo DATA >> $output_objdir/$libname.def~echo " SINGLE NONSHARED" >> $output_objdir/$libname.def~echo EXPORTS >> $output_objdir/$libname.def~emxexp $libobjs >> $output_objdir/$libname.def~$CC -Zdll -Zcrtdll -o $lib $libobjs $deplibs $compiler_flags $output_objdir/$libname.def' + _LT_TAGVAR(old_archive_from_new_cmds, $1)='emximp -o $output_objdir/$libname.a $output_objdir/$libname.def' + ;; + + osf3*) + if test "$GCC" = yes; then + _LT_TAGVAR(allow_undefined_flag, $1)=' ${wl}-expect_unresolved ${wl}\*' + _LT_TAGVAR(archive_cmds, $1)='$CC -shared${allow_undefined_flag} $libobjs $deplibs $compiler_flags ${wl}-soname ${wl}$soname `test -n "$verstring" && func_echo_all "${wl}-set_version ${wl}$verstring"` ${wl}-update_registry ${wl}${output_objdir}/so_locations -o $lib' + else + _LT_TAGVAR(allow_undefined_flag, $1)=' -expect_unresolved \*' + _LT_TAGVAR(archive_cmds, $1)='$CC -shared${allow_undefined_flag} $libobjs $deplibs $compiler_flags -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry ${output_objdir}/so_locations -o $lib' + fi + _LT_TAGVAR(archive_cmds_need_lc, $1)='no' + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath ${wl}$libdir' + _LT_TAGVAR(hardcode_libdir_separator, $1)=: + ;; + + osf4* | osf5*) # as osf3* with the addition of -msym flag + if test "$GCC" = yes; then + _LT_TAGVAR(allow_undefined_flag, $1)=' ${wl}-expect_unresolved ${wl}\*' + _LT_TAGVAR(archive_cmds, $1)='$CC -shared${allow_undefined_flag} $pic_flag $libobjs $deplibs $compiler_flags ${wl}-msym ${wl}-soname ${wl}$soname `test -n "$verstring" && func_echo_all "${wl}-set_version ${wl}$verstring"` ${wl}-update_registry ${wl}${output_objdir}/so_locations -o $lib' + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath ${wl}$libdir' + else + _LT_TAGVAR(allow_undefined_flag, $1)=' -expect_unresolved \*' + _LT_TAGVAR(archive_cmds, $1)='$CC -shared${allow_undefined_flag} $libobjs $deplibs $compiler_flags -msym -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry ${output_objdir}/so_locations -o $lib' + _LT_TAGVAR(archive_expsym_cmds, $1)='for i in `cat $export_symbols`; do printf "%s %s\\n" -exported_symbol "\$i" >> $lib.exp; done; printf "%s\\n" "-hidden">> $lib.exp~ + $CC -shared${allow_undefined_flag} ${wl}-input ${wl}$lib.exp $compiler_flags $libobjs $deplibs -soname $soname `test -n "$verstring" && $ECHO "-set_version $verstring"` -update_registry ${output_objdir}/so_locations -o $lib~$RM $lib.exp' + + # Both c and cxx compiler support -rpath directly + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-rpath $libdir' + fi + _LT_TAGVAR(archive_cmds_need_lc, $1)='no' + _LT_TAGVAR(hardcode_libdir_separator, $1)=: + ;; + + solaris*) + _LT_TAGVAR(no_undefined_flag, $1)=' -z defs' + if test "$GCC" = yes; then + wlarc='${wl}' + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag ${wl}-z ${wl}text ${wl}-h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags' + _LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~ + $CC -shared $pic_flag ${wl}-z ${wl}text ${wl}-M ${wl}$lib.exp ${wl}-h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags~$RM $lib.exp' + else + case `$CC -V 2>&1` in + *"Compilers 5.0"*) + wlarc='' + _LT_TAGVAR(archive_cmds, $1)='$LD -G${allow_undefined_flag} -h $soname -o $lib $libobjs $deplibs $linker_flags' + _LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~ + $LD -G${allow_undefined_flag} -M $lib.exp -h $soname -o $lib $libobjs $deplibs $linker_flags~$RM $lib.exp' + ;; + *) + wlarc='${wl}' + _LT_TAGVAR(archive_cmds, $1)='$CC -G${allow_undefined_flag} -h $soname -o $lib $libobjs $deplibs $compiler_flags' + _LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~ + $CC -G${allow_undefined_flag} -M $lib.exp -h $soname -o $lib $libobjs $deplibs $compiler_flags~$RM $lib.exp' + ;; + esac + fi + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-R$libdir' + _LT_TAGVAR(hardcode_shlibpath_var, $1)=no + case $host_os in + solaris2.[[0-5]] | solaris2.[[0-5]].*) ;; + *) + # The compiler driver will combine and reorder linker options, + # but understands `-z linker_flag'. GCC discards it without `$wl', + # but is careful enough not to reorder. + # Supported since Solaris 2.6 (maybe 2.5.1?) + if test "$GCC" = yes; then + _LT_TAGVAR(whole_archive_flag_spec, $1)='${wl}-z ${wl}allextract$convenience ${wl}-z ${wl}defaultextract' + else + _LT_TAGVAR(whole_archive_flag_spec, $1)='-z allextract$convenience -z defaultextract' + fi + ;; + esac + _LT_TAGVAR(link_all_deplibs, $1)=yes + ;; + + sunos4*) + if test "x$host_vendor" = xsequent; then + # Use $CC to link under sequent, because it throws in some extra .o + # files that make .init and .fini sections work. + _LT_TAGVAR(archive_cmds, $1)='$CC -G ${wl}-h $soname -o $lib $libobjs $deplibs $compiler_flags' + else + _LT_TAGVAR(archive_cmds, $1)='$LD -assert pure-text -Bstatic -o $lib $libobjs $deplibs $linker_flags' + fi + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir' + _LT_TAGVAR(hardcode_direct, $1)=yes + _LT_TAGVAR(hardcode_minus_L, $1)=yes + _LT_TAGVAR(hardcode_shlibpath_var, $1)=no + ;; + + sysv4) + case $host_vendor in + sni) + _LT_TAGVAR(archive_cmds, $1)='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags' + _LT_TAGVAR(hardcode_direct, $1)=yes # is this really true??? + ;; + siemens) + ## LD is ld it makes a PLAMLIB + ## CC just makes a GrossModule. + _LT_TAGVAR(archive_cmds, $1)='$LD -G -o $lib $libobjs $deplibs $linker_flags' + _LT_TAGVAR(reload_cmds, $1)='$CC -r -o $output$reload_objs' + _LT_TAGVAR(hardcode_direct, $1)=no + ;; + motorola) + _LT_TAGVAR(archive_cmds, $1)='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags' + _LT_TAGVAR(hardcode_direct, $1)=no #Motorola manual says yes, but my tests say they lie + ;; + esac + runpath_var='LD_RUN_PATH' + _LT_TAGVAR(hardcode_shlibpath_var, $1)=no + ;; + + sysv4.3*) + _LT_TAGVAR(archive_cmds, $1)='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags' + _LT_TAGVAR(hardcode_shlibpath_var, $1)=no + _LT_TAGVAR(export_dynamic_flag_spec, $1)='-Bexport' + ;; + + sysv4*MP*) + if test -d /usr/nec; then + _LT_TAGVAR(archive_cmds, $1)='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags' + _LT_TAGVAR(hardcode_shlibpath_var, $1)=no + runpath_var=LD_RUN_PATH + hardcode_runpath_var=yes + _LT_TAGVAR(ld_shlibs, $1)=yes + fi + ;; + + sysv4*uw2* | sysv5OpenUNIX* | sysv5UnixWare7.[[01]].[[10]]* | unixware7* | sco3.2v5.0.[[024]]*) + _LT_TAGVAR(no_undefined_flag, $1)='${wl}-z,text' + _LT_TAGVAR(archive_cmds_need_lc, $1)=no + _LT_TAGVAR(hardcode_shlibpath_var, $1)=no + runpath_var='LD_RUN_PATH' + + if test "$GCC" = yes; then + _LT_TAGVAR(archive_cmds, $1)='$CC -shared ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags' + _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared ${wl}-Bexport:$export_symbols ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags' + else + _LT_TAGVAR(archive_cmds, $1)='$CC -G ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags' + _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -G ${wl}-Bexport:$export_symbols ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags' + fi + ;; + + sysv5* | sco3.2v5* | sco5v6*) + # Note: We can NOT use -z defs as we might desire, because we do not + # link with -lc, and that would cause any symbols used from libc to + # always be unresolved, which means just about no library would + # ever link correctly. If we're not using GNU ld we use -z text + # though, which does catch some bad symbols but isn't as heavy-handed + # as -z defs. + _LT_TAGVAR(no_undefined_flag, $1)='${wl}-z,text' + _LT_TAGVAR(allow_undefined_flag, $1)='${wl}-z,nodefs' + _LT_TAGVAR(archive_cmds_need_lc, $1)=no + _LT_TAGVAR(hardcode_shlibpath_var, $1)=no + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-R,$libdir' + _LT_TAGVAR(hardcode_libdir_separator, $1)=':' + _LT_TAGVAR(link_all_deplibs, $1)=yes + _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}-Bexport' + runpath_var='LD_RUN_PATH' + + if test "$GCC" = yes; then + _LT_TAGVAR(archive_cmds, $1)='$CC -shared ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags' + _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared ${wl}-Bexport:$export_symbols ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags' + else + _LT_TAGVAR(archive_cmds, $1)='$CC -G ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags' + _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -G ${wl}-Bexport:$export_symbols ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags' + fi + ;; + + uts4*) + _LT_TAGVAR(archive_cmds, $1)='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags' + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir' + _LT_TAGVAR(hardcode_shlibpath_var, $1)=no + ;; + + *) + _LT_TAGVAR(ld_shlibs, $1)=no + ;; + esac + + if test x$host_vendor = xsni; then + case $host in + sysv4 | sysv4.2uw2* | sysv4.3* | sysv5*) + _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}-Blargedynsym' + ;; + esac + fi + fi +]) +AC_MSG_RESULT([$_LT_TAGVAR(ld_shlibs, $1)]) +test "$_LT_TAGVAR(ld_shlibs, $1)" = no && can_build_shared=no + +_LT_TAGVAR(with_gnu_ld, $1)=$with_gnu_ld + +_LT_DECL([], [libext], [0], [Old archive suffix (normally "a")])dnl +_LT_DECL([], [shrext_cmds], [1], [Shared library suffix (normally ".so")])dnl +_LT_DECL([], [extract_expsyms_cmds], [2], + [The commands to extract the exported symbol list from a shared archive]) + +# +# Do we need to explicitly link libc? +# +case "x$_LT_TAGVAR(archive_cmds_need_lc, $1)" in +x|xyes) + # Assume -lc should be added + _LT_TAGVAR(archive_cmds_need_lc, $1)=yes + + if test "$enable_shared" = yes && test "$GCC" = yes; then + case $_LT_TAGVAR(archive_cmds, $1) in + *'~'*) + # FIXME: we may have to deal with multi-command sequences. + ;; + '$CC '*) + # Test whether the compiler implicitly links with -lc since on some + # systems, -lgcc has to come before -lc. If gcc already passes -lc + # to ld, don't add -lc before -lgcc. + AC_CACHE_CHECK([whether -lc should be explicitly linked in], + [lt_cv_]_LT_TAGVAR(archive_cmds_need_lc, $1), + [$RM conftest* + echo "$lt_simple_compile_test_code" > conftest.$ac_ext + + if AC_TRY_EVAL(ac_compile) 2>conftest.err; then + soname=conftest + lib=conftest + libobjs=conftest.$ac_objext + deplibs= + wl=$_LT_TAGVAR(lt_prog_compiler_wl, $1) + pic_flag=$_LT_TAGVAR(lt_prog_compiler_pic, $1) + compiler_flags=-v + linker_flags=-v + verstring= + output_objdir=. + libname=conftest + lt_save_allow_undefined_flag=$_LT_TAGVAR(allow_undefined_flag, $1) + _LT_TAGVAR(allow_undefined_flag, $1)= + if AC_TRY_EVAL(_LT_TAGVAR(archive_cmds, $1) 2\>\&1 \| $GREP \" -lc \" \>/dev/null 2\>\&1) + then + lt_cv_[]_LT_TAGVAR(archive_cmds_need_lc, $1)=no + else + lt_cv_[]_LT_TAGVAR(archive_cmds_need_lc, $1)=yes + fi + _LT_TAGVAR(allow_undefined_flag, $1)=$lt_save_allow_undefined_flag + else + cat conftest.err 1>&5 + fi + $RM conftest* + ]) + _LT_TAGVAR(archive_cmds_need_lc, $1)=$lt_cv_[]_LT_TAGVAR(archive_cmds_need_lc, $1) + ;; + esac + fi + ;; +esac + +_LT_TAGDECL([build_libtool_need_lc], [archive_cmds_need_lc], [0], + [Whether or not to add -lc for building shared libraries]) +_LT_TAGDECL([allow_libtool_libs_with_static_runtimes], + [enable_shared_with_static_runtimes], [0], + [Whether or not to disallow shared libs when runtime libs are static]) +_LT_TAGDECL([], [export_dynamic_flag_spec], [1], + [Compiler flag to allow reflexive dlopens]) +_LT_TAGDECL([], [whole_archive_flag_spec], [1], + [Compiler flag to generate shared objects directly from archives]) +_LT_TAGDECL([], [compiler_needs_object], [1], + [Whether the compiler copes with passing no objects directly]) +_LT_TAGDECL([], [old_archive_from_new_cmds], [2], + [Create an old-style archive from a shared archive]) +_LT_TAGDECL([], [old_archive_from_expsyms_cmds], [2], + [Create a temporary old-style archive to link instead of a shared archive]) +_LT_TAGDECL([], [archive_cmds], [2], [Commands used to build a shared archive]) +_LT_TAGDECL([], [archive_expsym_cmds], [2]) +_LT_TAGDECL([], [module_cmds], [2], + [Commands used to build a loadable module if different from building + a shared archive.]) +_LT_TAGDECL([], [module_expsym_cmds], [2]) +_LT_TAGDECL([], [with_gnu_ld], [1], + [Whether we are building with GNU ld or not]) +_LT_TAGDECL([], [allow_undefined_flag], [1], + [Flag that allows shared libraries with undefined symbols to be built]) +_LT_TAGDECL([], [no_undefined_flag], [1], + [Flag that enforces no undefined symbols]) +_LT_TAGDECL([], [hardcode_libdir_flag_spec], [1], + [Flag to hardcode $libdir into a binary during linking. + This must work even if $libdir does not exist]) +_LT_TAGDECL([], [hardcode_libdir_separator], [1], + [Whether we need a single "-rpath" flag with a separated argument]) +_LT_TAGDECL([], [hardcode_direct], [0], + [Set to "yes" if using DIR/libNAME${shared_ext} during linking hardcodes + DIR into the resulting binary]) +_LT_TAGDECL([], [hardcode_direct_absolute], [0], + [Set to "yes" if using DIR/libNAME${shared_ext} during linking hardcodes + DIR into the resulting binary and the resulting library dependency is + "absolute", i.e impossible to change by setting ${shlibpath_var} if the + library is relocated]) +_LT_TAGDECL([], [hardcode_minus_L], [0], + [Set to "yes" if using the -LDIR flag during linking hardcodes DIR + into the resulting binary]) +_LT_TAGDECL([], [hardcode_shlibpath_var], [0], + [Set to "yes" if using SHLIBPATH_VAR=DIR during linking hardcodes DIR + into the resulting binary]) +_LT_TAGDECL([], [hardcode_automatic], [0], + [Set to "yes" if building a shared library automatically hardcodes DIR + into the library and all subsequent libraries and executables linked + against it]) +_LT_TAGDECL([], [inherit_rpath], [0], + [Set to yes if linker adds runtime paths of dependent libraries + to runtime path list]) +_LT_TAGDECL([], [link_all_deplibs], [0], + [Whether libtool must link a program against all its dependency libraries]) +_LT_TAGDECL([], [always_export_symbols], [0], + [Set to "yes" if exported symbols are required]) +_LT_TAGDECL([], [export_symbols_cmds], [2], + [The commands to list exported symbols]) +_LT_TAGDECL([], [exclude_expsyms], [1], + [Symbols that should not be listed in the preloaded symbols]) +_LT_TAGDECL([], [include_expsyms], [1], + [Symbols that must always be exported]) +_LT_TAGDECL([], [prelink_cmds], [2], + [Commands necessary for linking programs (against libraries) with templates]) +_LT_TAGDECL([], [postlink_cmds], [2], + [Commands necessary for finishing linking programs]) +_LT_TAGDECL([], [file_list_spec], [1], + [Specify filename containing input files]) +dnl FIXME: Not yet implemented +dnl _LT_TAGDECL([], [thread_safe_flag_spec], [1], +dnl [Compiler flag to generate thread safe objects]) +])# _LT_LINKER_SHLIBS + + +# _LT_LANG_C_CONFIG([TAG]) +# ------------------------ +# Ensure that the configuration variables for a C compiler are suitably +# defined. These variables are subsequently used by _LT_CONFIG to write +# the compiler configuration to `libtool'. +m4_defun([_LT_LANG_C_CONFIG], +[m4_require([_LT_DECL_EGREP])dnl +lt_save_CC="$CC" +AC_LANG_PUSH(C) + +# Source file extension for C test sources. +ac_ext=c + +# Object file extension for compiled C test sources. +objext=o +_LT_TAGVAR(objext, $1)=$objext + +# Code to be used in simple compile tests +lt_simple_compile_test_code="int some_variable = 0;" + +# Code to be used in simple link tests +lt_simple_link_test_code='int main(){return(0);}' + +_LT_TAG_COMPILER +# Save the default compiler, since it gets overwritten when the other +# tags are being tested, and _LT_TAGVAR(compiler, []) is a NOP. +compiler_DEFAULT=$CC + +# save warnings/boilerplate of simple test code +_LT_COMPILER_BOILERPLATE +_LT_LINKER_BOILERPLATE + +if test -n "$compiler"; then + _LT_COMPILER_NO_RTTI($1) + _LT_COMPILER_PIC($1) + _LT_COMPILER_C_O($1) + _LT_COMPILER_FILE_LOCKS($1) + _LT_LINKER_SHLIBS($1) + _LT_SYS_DYNAMIC_LINKER($1) + _LT_LINKER_HARDCODE_LIBPATH($1) + LT_SYS_DLOPEN_SELF + _LT_CMD_STRIPLIB + + # Report which library types will actually be built + AC_MSG_CHECKING([if libtool supports shared libraries]) + AC_MSG_RESULT([$can_build_shared]) + + AC_MSG_CHECKING([whether to build shared libraries]) + test "$can_build_shared" = "no" && enable_shared=no + + # On AIX, shared libraries and static libraries use the same namespace, and + # are all built from PIC. + case $host_os in + aix3*) + test "$enable_shared" = yes && enable_static=no + if test -n "$RANLIB"; then + archive_cmds="$archive_cmds~\$RANLIB \$lib" + postinstall_cmds='$RANLIB $lib' + fi + ;; + + aix[[4-9]]*) + if test "$host_cpu" != ia64 && test "$aix_use_runtimelinking" = no ; then + test "$enable_shared" = yes && enable_static=no + fi + ;; + esac + AC_MSG_RESULT([$enable_shared]) + + AC_MSG_CHECKING([whether to build static libraries]) + # Make sure either enable_shared or enable_static is yes. + test "$enable_shared" = yes || enable_static=yes + AC_MSG_RESULT([$enable_static]) + + _LT_CONFIG($1) +fi +AC_LANG_POP +CC="$lt_save_CC" +])# _LT_LANG_C_CONFIG + + +# _LT_LANG_CXX_CONFIG([TAG]) +# -------------------------- +# Ensure that the configuration variables for a C++ compiler are suitably +# defined. These variables are subsequently used by _LT_CONFIG to write +# the compiler configuration to `libtool'. +m4_defun([_LT_LANG_CXX_CONFIG], +[m4_require([_LT_FILEUTILS_DEFAULTS])dnl +m4_require([_LT_DECL_EGREP])dnl +m4_require([_LT_PATH_MANIFEST_TOOL])dnl +if test -n "$CXX" && ( test "X$CXX" != "Xno" && + ( (test "X$CXX" = "Xg++" && `g++ -v >/dev/null 2>&1` ) || + (test "X$CXX" != "Xg++"))) ; then + AC_PROG_CXXCPP +else + _lt_caught_CXX_error=yes +fi + +AC_LANG_PUSH(C++) +_LT_TAGVAR(archive_cmds_need_lc, $1)=no +_LT_TAGVAR(allow_undefined_flag, $1)= +_LT_TAGVAR(always_export_symbols, $1)=no +_LT_TAGVAR(archive_expsym_cmds, $1)= +_LT_TAGVAR(compiler_needs_object, $1)=no +_LT_TAGVAR(export_dynamic_flag_spec, $1)= +_LT_TAGVAR(hardcode_direct, $1)=no +_LT_TAGVAR(hardcode_direct_absolute, $1)=no +_LT_TAGVAR(hardcode_libdir_flag_spec, $1)= +_LT_TAGVAR(hardcode_libdir_separator, $1)= +_LT_TAGVAR(hardcode_minus_L, $1)=no +_LT_TAGVAR(hardcode_shlibpath_var, $1)=unsupported +_LT_TAGVAR(hardcode_automatic, $1)=no +_LT_TAGVAR(inherit_rpath, $1)=no +_LT_TAGVAR(module_cmds, $1)= +_LT_TAGVAR(module_expsym_cmds, $1)= +_LT_TAGVAR(link_all_deplibs, $1)=unknown +_LT_TAGVAR(old_archive_cmds, $1)=$old_archive_cmds +_LT_TAGVAR(reload_flag, $1)=$reload_flag +_LT_TAGVAR(reload_cmds, $1)=$reload_cmds +_LT_TAGVAR(no_undefined_flag, $1)= +_LT_TAGVAR(whole_archive_flag_spec, $1)= +_LT_TAGVAR(enable_shared_with_static_runtimes, $1)=no + +# Source file extension for C++ test sources. +ac_ext=cpp + +# Object file extension for compiled C++ test sources. +objext=o +_LT_TAGVAR(objext, $1)=$objext + +# No sense in running all these tests if we already determined that +# the CXX compiler isn't working. Some variables (like enable_shared) +# are currently assumed to apply to all compilers on this platform, +# and will be corrupted by setting them based on a non-working compiler. +if test "$_lt_caught_CXX_error" != yes; then + # Code to be used in simple compile tests + lt_simple_compile_test_code="int some_variable = 0;" + + # Code to be used in simple link tests + lt_simple_link_test_code='int main(int, char *[[]]) { return(0); }' + + # ltmain only uses $CC for tagged configurations so make sure $CC is set. + _LT_TAG_COMPILER + + # save warnings/boilerplate of simple test code + _LT_COMPILER_BOILERPLATE + _LT_LINKER_BOILERPLATE + + # Allow CC to be a program name with arguments. + lt_save_CC=$CC + lt_save_CFLAGS=$CFLAGS + lt_save_LD=$LD + lt_save_GCC=$GCC + GCC=$GXX + lt_save_with_gnu_ld=$with_gnu_ld + lt_save_path_LD=$lt_cv_path_LD + if test -n "${lt_cv_prog_gnu_ldcxx+set}"; then + lt_cv_prog_gnu_ld=$lt_cv_prog_gnu_ldcxx + else + $as_unset lt_cv_prog_gnu_ld + fi + if test -n "${lt_cv_path_LDCXX+set}"; then + lt_cv_path_LD=$lt_cv_path_LDCXX + else + $as_unset lt_cv_path_LD + fi + test -z "${LDCXX+set}" || LD=$LDCXX + CC=${CXX-"c++"} + CFLAGS=$CXXFLAGS + compiler=$CC + _LT_TAGVAR(compiler, $1)=$CC + _LT_CC_BASENAME([$compiler]) + + if test -n "$compiler"; then + # We don't want -fno-exception when compiling C++ code, so set the + # no_builtin_flag separately + if test "$GXX" = yes; then + _LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1)=' -fno-builtin' + else + _LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1)= + fi + + if test "$GXX" = yes; then + # Set up default GNU C++ configuration + + LT_PATH_LD + + # Check if GNU C++ uses GNU ld as the underlying linker, since the + # archiving commands below assume that GNU ld is being used. + if test "$with_gnu_ld" = yes; then + _LT_TAGVAR(archive_cmds, $1)='$CC $pic_flag -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $wl$soname -o $lib' + _LT_TAGVAR(archive_expsym_cmds, $1)='$CC $pic_flag -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib' + + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath ${wl}$libdir' + _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}--export-dynamic' + + # If archive_cmds runs LD, not CC, wlarc should be empty + # XXX I think wlarc can be eliminated in ltcf-cxx, but I need to + # investigate it a little bit more. (MM) + wlarc='${wl}' + + # ancient GNU ld didn't support --whole-archive et. al. + if eval "`$CC -print-prog-name=ld` --help 2>&1" | + $GREP 'no-whole-archive' > /dev/null; then + _LT_TAGVAR(whole_archive_flag_spec, $1)="$wlarc"'--whole-archive$convenience '"$wlarc"'--no-whole-archive' + else + _LT_TAGVAR(whole_archive_flag_spec, $1)= + fi + else + with_gnu_ld=no + wlarc= + + # A generic and very simple default shared library creation + # command for GNU C++ for the case where it uses the native + # linker, instead of GNU ld. If possible, this setting should + # overridden to take advantage of the native linker features on + # the platform it is being used on. + _LT_TAGVAR(archive_cmds, $1)='$CC -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -o $lib' + fi + + # Commands to make compiler produce verbose output that lists + # what "hidden" libraries, object files and flags are used when + # linking a shared library. + output_verbose_link_cmd='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP -v "^Configured with:" | $GREP "\-L"' + + else + GXX=no + with_gnu_ld=no + wlarc= + fi + + # PORTME: fill in a description of your system's C++ link characteristics + AC_MSG_CHECKING([whether the $compiler linker ($LD) supports shared libraries]) + _LT_TAGVAR(ld_shlibs, $1)=yes + case $host_os in + aix3*) + # FIXME: insert proper C++ library support + _LT_TAGVAR(ld_shlibs, $1)=no + ;; + aix[[4-9]]*) + if test "$host_cpu" = ia64; then + # On IA64, the linker does run time linking by default, so we don't + # have to do anything special. + aix_use_runtimelinking=no + exp_sym_flag='-Bexport' + no_entry_flag="" + else + aix_use_runtimelinking=no + + # Test if we are trying to use run time linking or normal + # AIX style linking. If -brtl is somewhere in LDFLAGS, we + # need to do runtime linking. + case $host_os in aix4.[[23]]|aix4.[[23]].*|aix[[5-9]]*) + for ld_flag in $LDFLAGS; do + case $ld_flag in + *-brtl*) + aix_use_runtimelinking=yes + break + ;; + esac + done + ;; + esac + + exp_sym_flag='-bexport' + no_entry_flag='-bnoentry' + fi + + # When large executables or shared objects are built, AIX ld can + # have problems creating the table of contents. If linking a library + # or program results in "error TOC overflow" add -mminimal-toc to + # CXXFLAGS/CFLAGS for g++/gcc. In the cases where that is not + # enough to fix the problem, add -Wl,-bbigtoc to LDFLAGS. + + _LT_TAGVAR(archive_cmds, $1)='' + _LT_TAGVAR(hardcode_direct, $1)=yes + _LT_TAGVAR(hardcode_direct_absolute, $1)=yes + _LT_TAGVAR(hardcode_libdir_separator, $1)=':' + _LT_TAGVAR(link_all_deplibs, $1)=yes + _LT_TAGVAR(file_list_spec, $1)='${wl}-f,' + + if test "$GXX" = yes; then + case $host_os in aix4.[[012]]|aix4.[[012]].*) + # We only want to do this on AIX 4.2 and lower, the check + # below for broken collect2 doesn't work under 4.3+ + collect2name=`${CC} -print-prog-name=collect2` + if test -f "$collect2name" && + strings "$collect2name" | $GREP resolve_lib_name >/dev/null + then + # We have reworked collect2 + : + else + # We have old collect2 + _LT_TAGVAR(hardcode_direct, $1)=unsupported + # It fails to find uninstalled libraries when the uninstalled + # path is not listed in the libpath. Setting hardcode_minus_L + # to unsupported forces relinking + _LT_TAGVAR(hardcode_minus_L, $1)=yes + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir' + _LT_TAGVAR(hardcode_libdir_separator, $1)= + fi + esac + shared_flag='-shared' + if test "$aix_use_runtimelinking" = yes; then + shared_flag="$shared_flag "'${wl}-G' + fi + else + # not using gcc + if test "$host_cpu" = ia64; then + # VisualAge C++, Version 5.5 for AIX 5L for IA-64, Beta 3 Release + # chokes on -Wl,-G. The following line is correct: + shared_flag='-G' + else + if test "$aix_use_runtimelinking" = yes; then + shared_flag='${wl}-G' + else + shared_flag='${wl}-bM:SRE' + fi + fi + fi + + _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}-bexpall' + # It seems that -bexpall does not export symbols beginning with + # underscore (_), so it is better to generate a list of symbols to + # export. + _LT_TAGVAR(always_export_symbols, $1)=yes + if test "$aix_use_runtimelinking" = yes; then + # Warning - without using the other runtime loading flags (-brtl), + # -berok will link without error, but may produce a broken library. + _LT_TAGVAR(allow_undefined_flag, $1)='-berok' + # Determine the default libpath from the value encoded in an empty + # executable. + _LT_SYS_MODULE_PATH_AIX([$1]) + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-blibpath:$libdir:'"$aix_libpath" + + _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -o $output_objdir/$soname $libobjs $deplibs '"\${wl}$no_entry_flag"' $compiler_flags `if test "x${allow_undefined_flag}" != "x"; then func_echo_all "${wl}${allow_undefined_flag}"; else :; fi` '"\${wl}$exp_sym_flag:\$export_symbols $shared_flag" + else + if test "$host_cpu" = ia64; then + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-R $libdir:/usr/lib:/lib' + _LT_TAGVAR(allow_undefined_flag, $1)="-z nodefs" + _LT_TAGVAR(archive_expsym_cmds, $1)="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs '"\${wl}$no_entry_flag"' $compiler_flags ${wl}${allow_undefined_flag} '"\${wl}$exp_sym_flag:\$export_symbols" + else + # Determine the default libpath from the value encoded in an + # empty executable. + _LT_SYS_MODULE_PATH_AIX([$1]) + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-blibpath:$libdir:'"$aix_libpath" + # Warning - without using the other run time loading flags, + # -berok will link without error, but may produce a broken library. + _LT_TAGVAR(no_undefined_flag, $1)=' ${wl}-bernotok' + _LT_TAGVAR(allow_undefined_flag, $1)=' ${wl}-berok' + if test "$with_gnu_ld" = yes; then + # We only use this code for GNU lds that support --whole-archive. + _LT_TAGVAR(whole_archive_flag_spec, $1)='${wl}--whole-archive$convenience ${wl}--no-whole-archive' + else + # Exported symbols can be pulled into shared objects from archives + _LT_TAGVAR(whole_archive_flag_spec, $1)='$convenience' + fi + _LT_TAGVAR(archive_cmds_need_lc, $1)=yes + # This is similar to how AIX traditionally builds its shared + # libraries. + _LT_TAGVAR(archive_expsym_cmds, $1)="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs ${wl}-bnoentry $compiler_flags ${wl}-bE:$export_symbols${allow_undefined_flag}~$AR $AR_FLAGS $output_objdir/$libname$release.a $output_objdir/$soname' + fi + fi + ;; + + beos*) + if $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then + _LT_TAGVAR(allow_undefined_flag, $1)=unsupported + # Joseph Beckenbach says some releases of gcc + # support --undefined. This deserves some investigation. FIXME + _LT_TAGVAR(archive_cmds, $1)='$CC -nostart $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib' + else + _LT_TAGVAR(ld_shlibs, $1)=no + fi + ;; + + chorus*) + case $cc_basename in + *) + # FIXME: insert proper C++ library support + _LT_TAGVAR(ld_shlibs, $1)=no + ;; + esac + ;; + + cygwin* | mingw* | pw32* | cegcc*) + case $GXX,$cc_basename in + ,cl* | no,cl*) + # Native MSVC + # hardcode_libdir_flag_spec is actually meaningless, as there is + # no search path for DLLs. + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)=' ' + _LT_TAGVAR(allow_undefined_flag, $1)=unsupported + _LT_TAGVAR(always_export_symbols, $1)=yes + _LT_TAGVAR(file_list_spec, $1)='@' + # Tell ltmain to make .lib files, not .a files. + libext=lib + # Tell ltmain to make .dll files, not .so files. + shrext_cmds=".dll" + # FIXME: Setting linknames here is a bad hack. + _LT_TAGVAR(archive_cmds, $1)='$CC -o $output_objdir/$soname $libobjs $compiler_flags $deplibs -Wl,-dll~linknames=' + _LT_TAGVAR(archive_expsym_cmds, $1)='if test "x`$SED 1q $export_symbols`" = xEXPORTS; then + $SED -n -e 's/\\\\\\\(.*\\\\\\\)/-link\\\ -EXPORT:\\\\\\\1/' -e '1\\\!p' < $export_symbols > $output_objdir/$soname.exp; + else + $SED -e 's/\\\\\\\(.*\\\\\\\)/-link\\\ -EXPORT:\\\\\\\1/' < $export_symbols > $output_objdir/$soname.exp; + fi~ + $CC -o $tool_output_objdir$soname $libobjs $compiler_flags $deplibs "@$tool_output_objdir$soname.exp" -Wl,-DLL,-IMPLIB:"$tool_output_objdir$libname.dll.lib"~ + linknames=' + # The linker will not automatically build a static lib if we build a DLL. + # _LT_TAGVAR(old_archive_from_new_cmds, $1)='true' + _LT_TAGVAR(enable_shared_with_static_runtimes, $1)=yes + # Don't use ranlib + _LT_TAGVAR(old_postinstall_cmds, $1)='chmod 644 $oldlib' + _LT_TAGVAR(postlink_cmds, $1)='lt_outputfile="@OUTPUT@"~ + lt_tool_outputfile="@TOOL_OUTPUT@"~ + case $lt_outputfile in + *.exe|*.EXE) ;; + *) + lt_outputfile="$lt_outputfile.exe" + lt_tool_outputfile="$lt_tool_outputfile.exe" + ;; + esac~ + func_to_tool_file "$lt_outputfile"~ + if test "$MANIFEST_TOOL" != ":" && test -f "$lt_outputfile.manifest"; then + $MANIFEST_TOOL -manifest "$lt_tool_outputfile.manifest" -outputresource:"$lt_tool_outputfile" || exit 1; + $RM "$lt_outputfile.manifest"; + fi' + ;; + *) + # g++ + # _LT_TAGVAR(hardcode_libdir_flag_spec, $1) is actually meaningless, + # as there is no search path for DLLs. + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir' + _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}--export-all-symbols' + _LT_TAGVAR(allow_undefined_flag, $1)=unsupported + _LT_TAGVAR(always_export_symbols, $1)=no + _LT_TAGVAR(enable_shared_with_static_runtimes, $1)=yes + + if $LD --help 2>&1 | $GREP 'auto-import' > /dev/null; then + _LT_TAGVAR(archive_cmds, $1)='$CC -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -o $output_objdir/$soname ${wl}--enable-auto-image-base -Xlinker --out-implib -Xlinker $lib' + # If the export-symbols file already is a .def file (1st line + # is EXPORTS), use it as is; otherwise, prepend... + _LT_TAGVAR(archive_expsym_cmds, $1)='if test "x`$SED 1q $export_symbols`" = xEXPORTS; then + cp $export_symbols $output_objdir/$soname.def; + else + echo EXPORTS > $output_objdir/$soname.def; + cat $export_symbols >> $output_objdir/$soname.def; + fi~ + $CC -shared -nostdlib $output_objdir/$soname.def $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -o $output_objdir/$soname ${wl}--enable-auto-image-base -Xlinker --out-implib -Xlinker $lib' + else + _LT_TAGVAR(ld_shlibs, $1)=no + fi + ;; + esac + ;; + darwin* | rhapsody*) + _LT_DARWIN_LINKER_FEATURES($1) + ;; + + dgux*) + case $cc_basename in + ec++*) + # FIXME: insert proper C++ library support + _LT_TAGVAR(ld_shlibs, $1)=no + ;; + ghcx*) + # Green Hills C++ Compiler + # FIXME: insert proper C++ library support + _LT_TAGVAR(ld_shlibs, $1)=no + ;; + *) + # FIXME: insert proper C++ library support + _LT_TAGVAR(ld_shlibs, $1)=no + ;; + esac + ;; + + freebsd2.*) + # C++ shared libraries reported to be fairly broken before + # switch to ELF + _LT_TAGVAR(ld_shlibs, $1)=no + ;; + + freebsd-elf*) + _LT_TAGVAR(archive_cmds_need_lc, $1)=no + ;; + + freebsd* | dragonfly*) + # FreeBSD 3 and later use GNU C++ and GNU ld with standard ELF + # conventions + _LT_TAGVAR(ld_shlibs, $1)=yes + ;; + + gnu*) + ;; + + haiku*) + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib' + _LT_TAGVAR(link_all_deplibs, $1)=yes + ;; + + hpux9*) + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}+b ${wl}$libdir' + _LT_TAGVAR(hardcode_libdir_separator, $1)=: + _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}-E' + _LT_TAGVAR(hardcode_direct, $1)=yes + _LT_TAGVAR(hardcode_minus_L, $1)=yes # Not in the search PATH, + # but as the default + # location of the library. + + case $cc_basename in + CC*) + # FIXME: insert proper C++ library support + _LT_TAGVAR(ld_shlibs, $1)=no + ;; + aCC*) + _LT_TAGVAR(archive_cmds, $1)='$RM $output_objdir/$soname~$CC -b ${wl}+b ${wl}$install_libdir -o $output_objdir/$soname $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~test $output_objdir/$soname = $lib || mv $output_objdir/$soname $lib' + # Commands to make compiler produce verbose output that lists + # what "hidden" libraries, object files and flags are used when + # linking a shared library. + # + # There doesn't appear to be a way to prevent this compiler from + # explicitly linking system object files so we need to strip them + # from the output so that they don't get included in the library + # dependencies. + output_verbose_link_cmd='templist=`($CC -b $CFLAGS -v conftest.$objext 2>&1) | $EGREP "\-L"`; list=""; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; func_echo_all "$list"' + ;; + *) + if test "$GXX" = yes; then + _LT_TAGVAR(archive_cmds, $1)='$RM $output_objdir/$soname~$CC -shared -nostdlib $pic_flag ${wl}+b ${wl}$install_libdir -o $output_objdir/$soname $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~test $output_objdir/$soname = $lib || mv $output_objdir/$soname $lib' + else + # FIXME: insert proper C++ library support + _LT_TAGVAR(ld_shlibs, $1)=no + fi + ;; + esac + ;; + + hpux10*|hpux11*) + if test $with_gnu_ld = no; then + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}+b ${wl}$libdir' + _LT_TAGVAR(hardcode_libdir_separator, $1)=: + + case $host_cpu in + hppa*64*|ia64*) + ;; + *) + _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}-E' + ;; + esac + fi + case $host_cpu in + hppa*64*|ia64*) + _LT_TAGVAR(hardcode_direct, $1)=no + _LT_TAGVAR(hardcode_shlibpath_var, $1)=no + ;; + *) + _LT_TAGVAR(hardcode_direct, $1)=yes + _LT_TAGVAR(hardcode_direct_absolute, $1)=yes + _LT_TAGVAR(hardcode_minus_L, $1)=yes # Not in the search PATH, + # but as the default + # location of the library. + ;; + esac + + case $cc_basename in + CC*) + # FIXME: insert proper C++ library support + _LT_TAGVAR(ld_shlibs, $1)=no + ;; + aCC*) + case $host_cpu in + hppa*64*) + _LT_TAGVAR(archive_cmds, $1)='$CC -b ${wl}+h ${wl}$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags' + ;; + ia64*) + _LT_TAGVAR(archive_cmds, $1)='$CC -b ${wl}+h ${wl}$soname ${wl}+nodefaultrpath -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags' + ;; + *) + _LT_TAGVAR(archive_cmds, $1)='$CC -b ${wl}+h ${wl}$soname ${wl}+b ${wl}$install_libdir -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags' + ;; + esac + # Commands to make compiler produce verbose output that lists + # what "hidden" libraries, object files and flags are used when + # linking a shared library. + # + # There doesn't appear to be a way to prevent this compiler from + # explicitly linking system object files so we need to strip them + # from the output so that they don't get included in the library + # dependencies. + output_verbose_link_cmd='templist=`($CC -b $CFLAGS -v conftest.$objext 2>&1) | $GREP "\-L"`; list=""; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; func_echo_all "$list"' + ;; + *) + if test "$GXX" = yes; then + if test $with_gnu_ld = no; then + case $host_cpu in + hppa*64*) + _LT_TAGVAR(archive_cmds, $1)='$CC -shared -nostdlib -fPIC ${wl}+h ${wl}$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags' + ;; + ia64*) + _LT_TAGVAR(archive_cmds, $1)='$CC -shared -nostdlib $pic_flag ${wl}+h ${wl}$soname ${wl}+nodefaultrpath -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags' + ;; + *) + _LT_TAGVAR(archive_cmds, $1)='$CC -shared -nostdlib $pic_flag ${wl}+h ${wl}$soname ${wl}+b ${wl}$install_libdir -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags' + ;; + esac + fi + else + # FIXME: insert proper C++ library support + _LT_TAGVAR(ld_shlibs, $1)=no + fi + ;; + esac + ;; + + interix[[3-9]]*) + _LT_TAGVAR(hardcode_direct, $1)=no + _LT_TAGVAR(hardcode_shlibpath_var, $1)=no + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath,$libdir' + _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}-E' + # Hack: On Interix 3.x, we cannot compile PIC because of a broken gcc. + # Instead, shared libraries are loaded at an image base (0x10000000 by + # default) and relocated if they conflict, which is a slow very memory + # consuming and fragmenting process. To avoid this, we pick a random, + # 256 KiB-aligned image base between 0x50000000 and 0x6FFC0000 at link + # time. Moving up from 0x10000000 also allows more sbrk(2) space. + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-h,$soname ${wl}--image-base,`expr ${RANDOM-$$} % 4096 / 2 \* 262144 + 1342177280` -o $lib' + _LT_TAGVAR(archive_expsym_cmds, $1)='sed "s,^,_," $export_symbols >$output_objdir/$soname.expsym~$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-h,$soname ${wl}--retain-symbols-file,$output_objdir/$soname.expsym ${wl}--image-base,`expr ${RANDOM-$$} % 4096 / 2 \* 262144 + 1342177280` -o $lib' + ;; + irix5* | irix6*) + case $cc_basename in + CC*) + # SGI C++ + _LT_TAGVAR(archive_cmds, $1)='$CC -shared -all -multigot $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry ${output_objdir}/so_locations -o $lib' + + # Archives containing C++ object files must be created using + # "CC -ar", where "CC" is the IRIX C++ compiler. This is + # necessary to make sure instantiated templates are included + # in the archive. + _LT_TAGVAR(old_archive_cmds, $1)='$CC -ar -WR,-u -o $oldlib $oldobjs' + ;; + *) + if test "$GXX" = yes; then + if test "$with_gnu_ld" = no; then + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname ${wl}$soname `test -n "$verstring" && func_echo_all "${wl}-set_version ${wl}$verstring"` ${wl}-update_registry ${wl}${output_objdir}/so_locations -o $lib' + else + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname ${wl}$soname `test -n "$verstring" && func_echo_all "${wl}-set_version ${wl}$verstring"` -o $lib' + fi + fi + _LT_TAGVAR(link_all_deplibs, $1)=yes + ;; + esac + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath ${wl}$libdir' + _LT_TAGVAR(hardcode_libdir_separator, $1)=: + _LT_TAGVAR(inherit_rpath, $1)=yes + ;; + + linux* | k*bsd*-gnu | kopensolaris*-gnu) + case $cc_basename in + KCC*) + # Kuck and Associates, Inc. (KAI) C++ Compiler + + # KCC will only create a shared library if the output file + # ends with ".so" (or ".sl" for HP-UX), so rename the library + # to its proper name (with version) after linking. + _LT_TAGVAR(archive_cmds, $1)='tempext=`echo $shared_ext | $SED -e '\''s/\([[^()0-9A-Za-z{}]]\)/\\\\\1/g'\''`; templib=`echo $lib | $SED -e "s/\${tempext}\..*/.so/"`; $CC $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags --soname $soname -o \$templib; mv \$templib $lib' + _LT_TAGVAR(archive_expsym_cmds, $1)='tempext=`echo $shared_ext | $SED -e '\''s/\([[^()0-9A-Za-z{}]]\)/\\\\\1/g'\''`; templib=`echo $lib | $SED -e "s/\${tempext}\..*/.so/"`; $CC $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags --soname $soname -o \$templib ${wl}-retain-symbols-file,$export_symbols; mv \$templib $lib' + # Commands to make compiler produce verbose output that lists + # what "hidden" libraries, object files and flags are used when + # linking a shared library. + # + # There doesn't appear to be a way to prevent this compiler from + # explicitly linking system object files so we need to strip them + # from the output so that they don't get included in the library + # dependencies. + output_verbose_link_cmd='templist=`$CC $CFLAGS -v conftest.$objext -o libconftest$shared_ext 2>&1 | $GREP "ld"`; rm -f libconftest$shared_ext; list=""; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; func_echo_all "$list"' + + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath,$libdir' + _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}--export-dynamic' + + # Archives containing C++ object files must be created using + # "CC -Bstatic", where "CC" is the KAI C++ compiler. + _LT_TAGVAR(old_archive_cmds, $1)='$CC -Bstatic -o $oldlib $oldobjs' + ;; + icpc* | ecpc* ) + # Intel C++ + with_gnu_ld=yes + # version 8.0 and above of icpc choke on multiply defined symbols + # if we add $predep_objects and $postdep_objects, however 7.1 and + # earlier do not add the objects themselves. + case `$CC -V 2>&1` in + *"Version 7."*) + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $wl$soname -o $lib' + _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib' + ;; + *) # Version 8.0 or newer + tmp_idyn= + case $host_cpu in + ia64*) tmp_idyn=' -i_dynamic';; + esac + _LT_TAGVAR(archive_cmds, $1)='$CC -shared'"$tmp_idyn"' $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib' + _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared'"$tmp_idyn"' $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib' + ;; + esac + _LT_TAGVAR(archive_cmds_need_lc, $1)=no + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath,$libdir' + _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}--export-dynamic' + _LT_TAGVAR(whole_archive_flag_spec, $1)='${wl}--whole-archive$convenience ${wl}--no-whole-archive' + ;; + pgCC* | pgcpp*) + # Portland Group C++ compiler + case `$CC -V` in + *pgCC\ [[1-5]].* | *pgcpp\ [[1-5]].*) + _LT_TAGVAR(prelink_cmds, $1)='tpldir=Template.dir~ + rm -rf $tpldir~ + $CC --prelink_objects --instantiation_dir $tpldir $objs $libobjs $compile_deplibs~ + compile_command="$compile_command `find $tpldir -name \*.o | sort | $NL2SP`"' + _LT_TAGVAR(old_archive_cmds, $1)='tpldir=Template.dir~ + rm -rf $tpldir~ + $CC --prelink_objects --instantiation_dir $tpldir $oldobjs$old_deplibs~ + $AR $AR_FLAGS $oldlib$oldobjs$old_deplibs `find $tpldir -name \*.o | sort | $NL2SP`~ + $RANLIB $oldlib' + _LT_TAGVAR(archive_cmds, $1)='tpldir=Template.dir~ + rm -rf $tpldir~ + $CC --prelink_objects --instantiation_dir $tpldir $predep_objects $libobjs $deplibs $convenience $postdep_objects~ + $CC -shared $pic_flag $predep_objects $libobjs $deplibs `find $tpldir -name \*.o | sort | $NL2SP` $postdep_objects $compiler_flags ${wl}-soname ${wl}$soname -o $lib' + _LT_TAGVAR(archive_expsym_cmds, $1)='tpldir=Template.dir~ + rm -rf $tpldir~ + $CC --prelink_objects --instantiation_dir $tpldir $predep_objects $libobjs $deplibs $convenience $postdep_objects~ + $CC -shared $pic_flag $predep_objects $libobjs $deplibs `find $tpldir -name \*.o | sort | $NL2SP` $postdep_objects $compiler_flags ${wl}-soname ${wl}$soname ${wl}-retain-symbols-file ${wl}$export_symbols -o $lib' + ;; + *) # Version 6 and above use weak symbols + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname ${wl}$soname -o $lib' + _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $pic_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname ${wl}$soname ${wl}-retain-symbols-file ${wl}$export_symbols -o $lib' + ;; + esac + + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}--rpath ${wl}$libdir' + _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}--export-dynamic' + _LT_TAGVAR(whole_archive_flag_spec, $1)='${wl}--whole-archive`for conv in $convenience\"\"; do test -n \"$conv\" && new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` ${wl}--no-whole-archive' + ;; + cxx*) + # Compaq C++ + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $wl$soname -o $lib' + _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $wl$soname -o $lib ${wl}-retain-symbols-file $wl$export_symbols' + + runpath_var=LD_RUN_PATH + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-rpath $libdir' + _LT_TAGVAR(hardcode_libdir_separator, $1)=: + + # Commands to make compiler produce verbose output that lists + # what "hidden" libraries, object files and flags are used when + # linking a shared library. + # + # There doesn't appear to be a way to prevent this compiler from + # explicitly linking system object files so we need to strip them + # from the output so that they don't get included in the library + # dependencies. + output_verbose_link_cmd='templist=`$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP "ld"`; templist=`func_echo_all "$templist" | $SED "s/\(^.*ld.*\)\( .*ld .*$\)/\1/"`; list=""; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; func_echo_all "X$list" | $Xsed' + ;; + xl* | mpixl* | bgxl*) + # IBM XL 8.0 on PPC, with GNU ld + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath ${wl}$libdir' + _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}--export-dynamic' + _LT_TAGVAR(archive_cmds, $1)='$CC -qmkshrobj $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib' + if test "x$supports_anon_versioning" = xyes; then + _LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $output_objdir/$libname.ver~ + cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $output_objdir/$libname.ver~ + echo "local: *; };" >> $output_objdir/$libname.ver~ + $CC -qmkshrobj $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-version-script ${wl}$output_objdir/$libname.ver -o $lib' + fi + ;; + *) + case `$CC -V 2>&1 | sed 5q` in + *Sun\ C*) + # Sun C++ 5.9 + _LT_TAGVAR(no_undefined_flag, $1)=' -zdefs' + _LT_TAGVAR(archive_cmds, $1)='$CC -G${allow_undefined_flag} -h$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags' + _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -G${allow_undefined_flag} -h$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-retain-symbols-file ${wl}$export_symbols' + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-R$libdir' + _LT_TAGVAR(whole_archive_flag_spec, $1)='${wl}--whole-archive`new_convenience=; for conv in $convenience\"\"; do test -z \"$conv\" || new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` ${wl}--no-whole-archive' + _LT_TAGVAR(compiler_needs_object, $1)=yes + + # Not sure whether something based on + # $CC $CFLAGS -v conftest.$objext -o libconftest$shared_ext 2>&1 + # would be better. + output_verbose_link_cmd='func_echo_all' + + # Archives containing C++ object files must be created using + # "CC -xar", where "CC" is the Sun C++ compiler. This is + # necessary to make sure instantiated templates are included + # in the archive. + _LT_TAGVAR(old_archive_cmds, $1)='$CC -xar -o $oldlib $oldobjs' + ;; + esac + ;; + esac + ;; + + lynxos*) + # FIXME: insert proper C++ library support + _LT_TAGVAR(ld_shlibs, $1)=no + ;; + + m88k*) + # FIXME: insert proper C++ library support + _LT_TAGVAR(ld_shlibs, $1)=no + ;; + + mvs*) + case $cc_basename in + cxx*) + # FIXME: insert proper C++ library support + _LT_TAGVAR(ld_shlibs, $1)=no + ;; + *) + # FIXME: insert proper C++ library support + _LT_TAGVAR(ld_shlibs, $1)=no + ;; + esac + ;; + + netbsd*) + if echo __ELF__ | $CC -E - | $GREP __ELF__ >/dev/null; then + _LT_TAGVAR(archive_cmds, $1)='$LD -Bshareable -o $lib $predep_objects $libobjs $deplibs $postdep_objects $linker_flags' + wlarc= + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-R$libdir' + _LT_TAGVAR(hardcode_direct, $1)=yes + _LT_TAGVAR(hardcode_shlibpath_var, $1)=no + fi + # Workaround some broken pre-1.5 toolchains + output_verbose_link_cmd='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP conftest.$objext | $SED -e "s:-lgcc -lc -lgcc::"' + ;; + + *nto* | *qnx*) + _LT_TAGVAR(ld_shlibs, $1)=yes + ;; + + openbsd2*) + # C++ shared libraries are fairly broken + _LT_TAGVAR(ld_shlibs, $1)=no + ;; + + openbsd*) + if test -f /usr/libexec/ld.so; then + _LT_TAGVAR(hardcode_direct, $1)=yes + _LT_TAGVAR(hardcode_shlibpath_var, $1)=no + _LT_TAGVAR(hardcode_direct_absolute, $1)=yes + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -o $lib' + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath,$libdir' + if test -z "`echo __ELF__ | $CC -E - | grep __ELF__`" || test "$host_os-$host_cpu" = "openbsd2.8-powerpc"; then + _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $pic_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-retain-symbols-file,$export_symbols -o $lib' + _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}-E' + _LT_TAGVAR(whole_archive_flag_spec, $1)="$wlarc"'--whole-archive$convenience '"$wlarc"'--no-whole-archive' + fi + output_verbose_link_cmd=func_echo_all + else + _LT_TAGVAR(ld_shlibs, $1)=no + fi + ;; + + osf3* | osf4* | osf5*) + case $cc_basename in + KCC*) + # Kuck and Associates, Inc. (KAI) C++ Compiler + + # KCC will only create a shared library if the output file + # ends with ".so" (or ".sl" for HP-UX), so rename the library + # to its proper name (with version) after linking. + _LT_TAGVAR(archive_cmds, $1)='tempext=`echo $shared_ext | $SED -e '\''s/\([[^()0-9A-Za-z{}]]\)/\\\\\1/g'\''`; templib=`echo "$lib" | $SED -e "s/\${tempext}\..*/.so/"`; $CC $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags --soname $soname -o \$templib; mv \$templib $lib' + + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath,$libdir' + _LT_TAGVAR(hardcode_libdir_separator, $1)=: + + # Archives containing C++ object files must be created using + # the KAI C++ compiler. + case $host in + osf3*) _LT_TAGVAR(old_archive_cmds, $1)='$CC -Bstatic -o $oldlib $oldobjs' ;; + *) _LT_TAGVAR(old_archive_cmds, $1)='$CC -o $oldlib $oldobjs' ;; + esac + ;; + RCC*) + # Rational C++ 2.4.1 + # FIXME: insert proper C++ library support + _LT_TAGVAR(ld_shlibs, $1)=no + ;; + cxx*) + case $host in + osf3*) + _LT_TAGVAR(allow_undefined_flag, $1)=' ${wl}-expect_unresolved ${wl}\*' + _LT_TAGVAR(archive_cmds, $1)='$CC -shared${allow_undefined_flag} $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $soname `test -n "$verstring" && func_echo_all "${wl}-set_version $verstring"` -update_registry ${output_objdir}/so_locations -o $lib' + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath ${wl}$libdir' + ;; + *) + _LT_TAGVAR(allow_undefined_flag, $1)=' -expect_unresolved \*' + _LT_TAGVAR(archive_cmds, $1)='$CC -shared${allow_undefined_flag} $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -msym -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry ${output_objdir}/so_locations -o $lib' + _LT_TAGVAR(archive_expsym_cmds, $1)='for i in `cat $export_symbols`; do printf "%s %s\\n" -exported_symbol "\$i" >> $lib.exp; done~ + echo "-hidden">> $lib.exp~ + $CC -shared$allow_undefined_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -msym -soname $soname ${wl}-input ${wl}$lib.exp `test -n "$verstring" && $ECHO "-set_version $verstring"` -update_registry ${output_objdir}/so_locations -o $lib~ + $RM $lib.exp' + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-rpath $libdir' + ;; + esac + + _LT_TAGVAR(hardcode_libdir_separator, $1)=: + + # Commands to make compiler produce verbose output that lists + # what "hidden" libraries, object files and flags are used when + # linking a shared library. + # + # There doesn't appear to be a way to prevent this compiler from + # explicitly linking system object files so we need to strip them + # from the output so that they don't get included in the library + # dependencies. + output_verbose_link_cmd='templist=`$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP "ld" | $GREP -v "ld:"`; templist=`func_echo_all "$templist" | $SED "s/\(^.*ld.*\)\( .*ld.*$\)/\1/"`; list=""; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; func_echo_all "$list"' + ;; + *) + if test "$GXX" = yes && test "$with_gnu_ld" = no; then + _LT_TAGVAR(allow_undefined_flag, $1)=' ${wl}-expect_unresolved ${wl}\*' + case $host in + osf3*) + _LT_TAGVAR(archive_cmds, $1)='$CC -shared -nostdlib ${allow_undefined_flag} $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname ${wl}$soname `test -n "$verstring" && func_echo_all "${wl}-set_version ${wl}$verstring"` ${wl}-update_registry ${wl}${output_objdir}/so_locations -o $lib' + ;; + *) + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag -nostdlib ${allow_undefined_flag} $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-msym ${wl}-soname ${wl}$soname `test -n "$verstring" && func_echo_all "${wl}-set_version ${wl}$verstring"` ${wl}-update_registry ${wl}${output_objdir}/so_locations -o $lib' + ;; + esac + + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath ${wl}$libdir' + _LT_TAGVAR(hardcode_libdir_separator, $1)=: + + # Commands to make compiler produce verbose output that lists + # what "hidden" libraries, object files and flags are used when + # linking a shared library. + output_verbose_link_cmd='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP -v "^Configured with:" | $GREP "\-L"' + + else + # FIXME: insert proper C++ library support + _LT_TAGVAR(ld_shlibs, $1)=no + fi + ;; + esac + ;; + + psos*) + # FIXME: insert proper C++ library support + _LT_TAGVAR(ld_shlibs, $1)=no + ;; + + sunos4*) + case $cc_basename in + CC*) + # Sun C++ 4.x + # FIXME: insert proper C++ library support + _LT_TAGVAR(ld_shlibs, $1)=no + ;; + lcc*) + # Lucid + # FIXME: insert proper C++ library support + _LT_TAGVAR(ld_shlibs, $1)=no + ;; + *) + # FIXME: insert proper C++ library support + _LT_TAGVAR(ld_shlibs, $1)=no + ;; + esac + ;; + + solaris*) + case $cc_basename in + CC* | sunCC*) + # Sun C++ 4.2, 5.x and Centerline C++ + _LT_TAGVAR(archive_cmds_need_lc,$1)=yes + _LT_TAGVAR(no_undefined_flag, $1)=' -zdefs' + _LT_TAGVAR(archive_cmds, $1)='$CC -G${allow_undefined_flag} -h$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags' + _LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~ + $CC -G${allow_undefined_flag} ${wl}-M ${wl}$lib.exp -h$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~$RM $lib.exp' + + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-R$libdir' + _LT_TAGVAR(hardcode_shlibpath_var, $1)=no + case $host_os in + solaris2.[[0-5]] | solaris2.[[0-5]].*) ;; + *) + # The compiler driver will combine and reorder linker options, + # but understands `-z linker_flag'. + # Supported since Solaris 2.6 (maybe 2.5.1?) + _LT_TAGVAR(whole_archive_flag_spec, $1)='-z allextract$convenience -z defaultextract' + ;; + esac + _LT_TAGVAR(link_all_deplibs, $1)=yes + + output_verbose_link_cmd='func_echo_all' + + # Archives containing C++ object files must be created using + # "CC -xar", where "CC" is the Sun C++ compiler. This is + # necessary to make sure instantiated templates are included + # in the archive. + _LT_TAGVAR(old_archive_cmds, $1)='$CC -xar -o $oldlib $oldobjs' + ;; + gcx*) + # Green Hills C++ Compiler + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-h $wl$soname -o $lib' + + # The C++ compiler must be used to create the archive. + _LT_TAGVAR(old_archive_cmds, $1)='$CC $LDFLAGS -archive -o $oldlib $oldobjs' + ;; + *) + # GNU C++ compiler with Solaris linker + if test "$GXX" = yes && test "$with_gnu_ld" = no; then + _LT_TAGVAR(no_undefined_flag, $1)=' ${wl}-z ${wl}defs' + if $CC --version | $GREP -v '^2\.7' > /dev/null; then + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag -nostdlib $LDFLAGS $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-h $wl$soname -o $lib' + _LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~ + $CC -shared $pic_flag -nostdlib ${wl}-M $wl$lib.exp -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~$RM $lib.exp' + + # Commands to make compiler produce verbose output that lists + # what "hidden" libraries, object files and flags are used when + # linking a shared library. + output_verbose_link_cmd='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP -v "^Configured with:" | $GREP "\-L"' + else + # g++ 2.7 appears to require `-G' NOT `-shared' on this + # platform. + _LT_TAGVAR(archive_cmds, $1)='$CC -G -nostdlib $LDFLAGS $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-h $wl$soname -o $lib' + _LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~ + $CC -G -nostdlib ${wl}-M $wl$lib.exp -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~$RM $lib.exp' + + # Commands to make compiler produce verbose output that lists + # what "hidden" libraries, object files and flags are used when + # linking a shared library. + output_verbose_link_cmd='$CC -G $CFLAGS -v conftest.$objext 2>&1 | $GREP -v "^Configured with:" | $GREP "\-L"' + fi + + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-R $wl$libdir' + case $host_os in + solaris2.[[0-5]] | solaris2.[[0-5]].*) ;; + *) + _LT_TAGVAR(whole_archive_flag_spec, $1)='${wl}-z ${wl}allextract$convenience ${wl}-z ${wl}defaultextract' + ;; + esac + fi + ;; + esac + ;; + + sysv4*uw2* | sysv5OpenUNIX* | sysv5UnixWare7.[[01]].[[10]]* | unixware7* | sco3.2v5.0.[[024]]*) + _LT_TAGVAR(no_undefined_flag, $1)='${wl}-z,text' + _LT_TAGVAR(archive_cmds_need_lc, $1)=no + _LT_TAGVAR(hardcode_shlibpath_var, $1)=no + runpath_var='LD_RUN_PATH' + + case $cc_basename in + CC*) + _LT_TAGVAR(archive_cmds, $1)='$CC -G ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags' + _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -G ${wl}-Bexport:$export_symbols ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags' + ;; + *) + _LT_TAGVAR(archive_cmds, $1)='$CC -shared ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags' + _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared ${wl}-Bexport:$export_symbols ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags' + ;; + esac + ;; + + sysv5* | sco3.2v5* | sco5v6*) + # Note: We can NOT use -z defs as we might desire, because we do not + # link with -lc, and that would cause any symbols used from libc to + # always be unresolved, which means just about no library would + # ever link correctly. If we're not using GNU ld we use -z text + # though, which does catch some bad symbols but isn't as heavy-handed + # as -z defs. + _LT_TAGVAR(no_undefined_flag, $1)='${wl}-z,text' + _LT_TAGVAR(allow_undefined_flag, $1)='${wl}-z,nodefs' + _LT_TAGVAR(archive_cmds_need_lc, $1)=no + _LT_TAGVAR(hardcode_shlibpath_var, $1)=no + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-R,$libdir' + _LT_TAGVAR(hardcode_libdir_separator, $1)=':' + _LT_TAGVAR(link_all_deplibs, $1)=yes + _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}-Bexport' + runpath_var='LD_RUN_PATH' + + case $cc_basename in + CC*) + _LT_TAGVAR(archive_cmds, $1)='$CC -G ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags' + _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -G ${wl}-Bexport:$export_symbols ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags' + _LT_TAGVAR(old_archive_cmds, $1)='$CC -Tprelink_objects $oldobjs~ + '"$_LT_TAGVAR(old_archive_cmds, $1)" + _LT_TAGVAR(reload_cmds, $1)='$CC -Tprelink_objects $reload_objs~ + '"$_LT_TAGVAR(reload_cmds, $1)" + ;; + *) + _LT_TAGVAR(archive_cmds, $1)='$CC -shared ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags' + _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared ${wl}-Bexport:$export_symbols ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags' + ;; + esac + ;; + + tandem*) + case $cc_basename in + NCC*) + # NonStop-UX NCC 3.20 + # FIXME: insert proper C++ library support + _LT_TAGVAR(ld_shlibs, $1)=no + ;; + *) + # FIXME: insert proper C++ library support + _LT_TAGVAR(ld_shlibs, $1)=no + ;; + esac + ;; + + vxworks*) + # FIXME: insert proper C++ library support + _LT_TAGVAR(ld_shlibs, $1)=no + ;; + + *) + # FIXME: insert proper C++ library support + _LT_TAGVAR(ld_shlibs, $1)=no + ;; + esac + + AC_MSG_RESULT([$_LT_TAGVAR(ld_shlibs, $1)]) + test "$_LT_TAGVAR(ld_shlibs, $1)" = no && can_build_shared=no + + _LT_TAGVAR(GCC, $1)="$GXX" + _LT_TAGVAR(LD, $1)="$LD" + + ## CAVEAT EMPTOR: + ## There is no encapsulation within the following macros, do not change + ## the running order or otherwise move them around unless you know exactly + ## what you are doing... + _LT_SYS_HIDDEN_LIBDEPS($1) + _LT_COMPILER_PIC($1) + _LT_COMPILER_C_O($1) + _LT_COMPILER_FILE_LOCKS($1) + _LT_LINKER_SHLIBS($1) + _LT_SYS_DYNAMIC_LINKER($1) + _LT_LINKER_HARDCODE_LIBPATH($1) + + _LT_CONFIG($1) + fi # test -n "$compiler" + + CC=$lt_save_CC + CFLAGS=$lt_save_CFLAGS + LDCXX=$LD + LD=$lt_save_LD + GCC=$lt_save_GCC + with_gnu_ld=$lt_save_with_gnu_ld + lt_cv_path_LDCXX=$lt_cv_path_LD + lt_cv_path_LD=$lt_save_path_LD + lt_cv_prog_gnu_ldcxx=$lt_cv_prog_gnu_ld + lt_cv_prog_gnu_ld=$lt_save_with_gnu_ld +fi # test "$_lt_caught_CXX_error" != yes + +AC_LANG_POP +])# _LT_LANG_CXX_CONFIG + + +# _LT_FUNC_STRIPNAME_CNF +# ---------------------- +# func_stripname_cnf prefix suffix name +# strip PREFIX and SUFFIX off of NAME. +# PREFIX and SUFFIX must not contain globbing or regex special +# characters, hashes, percent signs, but SUFFIX may contain a leading +# dot (in which case that matches only a dot). +# +# This function is identical to the (non-XSI) version of func_stripname, +# except this one can be used by m4 code that may be executed by configure, +# rather than the libtool script. +m4_defun([_LT_FUNC_STRIPNAME_CNF],[dnl +AC_REQUIRE([_LT_DECL_SED]) +AC_REQUIRE([_LT_PROG_ECHO_BACKSLASH]) +func_stripname_cnf () +{ + case ${2} in + .*) func_stripname_result=`$ECHO "${3}" | $SED "s%^${1}%%; s%\\\\${2}\$%%"`;; + *) func_stripname_result=`$ECHO "${3}" | $SED "s%^${1}%%; s%${2}\$%%"`;; + esac +} # func_stripname_cnf +])# _LT_FUNC_STRIPNAME_CNF + +# _LT_SYS_HIDDEN_LIBDEPS([TAGNAME]) +# --------------------------------- +# Figure out "hidden" library dependencies from verbose +# compiler output when linking a shared library. +# Parse the compiler output and extract the necessary +# objects, libraries and library flags. +m4_defun([_LT_SYS_HIDDEN_LIBDEPS], +[m4_require([_LT_FILEUTILS_DEFAULTS])dnl +AC_REQUIRE([_LT_FUNC_STRIPNAME_CNF])dnl +# Dependencies to place before and after the object being linked: +_LT_TAGVAR(predep_objects, $1)= +_LT_TAGVAR(postdep_objects, $1)= +_LT_TAGVAR(predeps, $1)= +_LT_TAGVAR(postdeps, $1)= +_LT_TAGVAR(compiler_lib_search_path, $1)= + +dnl we can't use the lt_simple_compile_test_code here, +dnl because it contains code intended for an executable, +dnl not a library. It's possible we should let each +dnl tag define a new lt_????_link_test_code variable, +dnl but it's only used here... +m4_if([$1], [], [cat > conftest.$ac_ext <<_LT_EOF +int a; +void foo (void) { a = 0; } +_LT_EOF +], [$1], [CXX], [cat > conftest.$ac_ext <<_LT_EOF +class Foo +{ +public: + Foo (void) { a = 0; } +private: + int a; +}; +_LT_EOF +], [$1], [F77], [cat > conftest.$ac_ext <<_LT_EOF + subroutine foo + implicit none + integer*4 a + a=0 + return + end +_LT_EOF +], [$1], [FC], [cat > conftest.$ac_ext <<_LT_EOF + subroutine foo + implicit none + integer a + a=0 + return + end +_LT_EOF +], [$1], [GCJ], [cat > conftest.$ac_ext <<_LT_EOF +public class foo { + private int a; + public void bar (void) { + a = 0; + } +}; +_LT_EOF +], [$1], [GO], [cat > conftest.$ac_ext <<_LT_EOF +package foo +func foo() { +} +_LT_EOF +]) + +_lt_libdeps_save_CFLAGS=$CFLAGS +case "$CC $CFLAGS " in #( +*\ -flto*\ *) CFLAGS="$CFLAGS -fno-lto" ;; +*\ -fwhopr*\ *) CFLAGS="$CFLAGS -fno-whopr" ;; +*\ -fuse-linker-plugin*\ *) CFLAGS="$CFLAGS -fno-use-linker-plugin" ;; +esac + +dnl Parse the compiler output and extract the necessary +dnl objects, libraries and library flags. +if AC_TRY_EVAL(ac_compile); then + # Parse the compiler output and extract the necessary + # objects, libraries and library flags. + + # Sentinel used to keep track of whether or not we are before + # the conftest object file. + pre_test_object_deps_done=no + + for p in `eval "$output_verbose_link_cmd"`; do + case ${prev}${p} in + + -L* | -R* | -l*) + # Some compilers place space between "-{L,R}" and the path. + # Remove the space. + if test $p = "-L" || + test $p = "-R"; then + prev=$p + continue + fi + + # Expand the sysroot to ease extracting the directories later. + if test -z "$prev"; then + case $p in + -L*) func_stripname_cnf '-L' '' "$p"; prev=-L; p=$func_stripname_result ;; + -R*) func_stripname_cnf '-R' '' "$p"; prev=-R; p=$func_stripname_result ;; + -l*) func_stripname_cnf '-l' '' "$p"; prev=-l; p=$func_stripname_result ;; + esac + fi + case $p in + =*) func_stripname_cnf '=' '' "$p"; p=$lt_sysroot$func_stripname_result ;; + esac + if test "$pre_test_object_deps_done" = no; then + case ${prev} in + -L | -R) + # Internal compiler library paths should come after those + # provided the user. The postdeps already come after the + # user supplied libs so there is no need to process them. + if test -z "$_LT_TAGVAR(compiler_lib_search_path, $1)"; then + _LT_TAGVAR(compiler_lib_search_path, $1)="${prev}${p}" + else + _LT_TAGVAR(compiler_lib_search_path, $1)="${_LT_TAGVAR(compiler_lib_search_path, $1)} ${prev}${p}" + fi + ;; + # The "-l" case would never come before the object being + # linked, so don't bother handling this case. + esac + else + if test -z "$_LT_TAGVAR(postdeps, $1)"; then + _LT_TAGVAR(postdeps, $1)="${prev}${p}" + else + _LT_TAGVAR(postdeps, $1)="${_LT_TAGVAR(postdeps, $1)} ${prev}${p}" + fi + fi + prev= + ;; + + *.lto.$objext) ;; # Ignore GCC LTO objects + *.$objext) + # This assumes that the test object file only shows up + # once in the compiler output. + if test "$p" = "conftest.$objext"; then + pre_test_object_deps_done=yes + continue + fi + + if test "$pre_test_object_deps_done" = no; then + if test -z "$_LT_TAGVAR(predep_objects, $1)"; then + _LT_TAGVAR(predep_objects, $1)="$p" + else + _LT_TAGVAR(predep_objects, $1)="$_LT_TAGVAR(predep_objects, $1) $p" + fi + else + if test -z "$_LT_TAGVAR(postdep_objects, $1)"; then + _LT_TAGVAR(postdep_objects, $1)="$p" + else + _LT_TAGVAR(postdep_objects, $1)="$_LT_TAGVAR(postdep_objects, $1) $p" + fi + fi + ;; + + *) ;; # Ignore the rest. + + esac + done + + # Clean up. + rm -f a.out a.exe +else + echo "libtool.m4: error: problem compiling $1 test program" +fi + +$RM -f confest.$objext +CFLAGS=$_lt_libdeps_save_CFLAGS + +# PORTME: override above test on systems where it is broken +m4_if([$1], [CXX], +[case $host_os in +interix[[3-9]]*) + # Interix 3.5 installs completely hosed .la files for C++, so rather than + # hack all around it, let's just trust "g++" to DTRT. + _LT_TAGVAR(predep_objects,$1)= + _LT_TAGVAR(postdep_objects,$1)= + _LT_TAGVAR(postdeps,$1)= + ;; + +linux*) + case `$CC -V 2>&1 | sed 5q` in + *Sun\ C*) + # Sun C++ 5.9 + + # The more standards-conforming stlport4 library is + # incompatible with the Cstd library. Avoid specifying + # it if it's in CXXFLAGS. Ignore libCrun as + # -library=stlport4 depends on it. + case " $CXX $CXXFLAGS " in + *" -library=stlport4 "*) + solaris_use_stlport4=yes + ;; + esac + + if test "$solaris_use_stlport4" != yes; then + _LT_TAGVAR(postdeps,$1)='-library=Cstd -library=Crun' + fi + ;; + esac + ;; + +solaris*) + case $cc_basename in + CC* | sunCC*) + # The more standards-conforming stlport4 library is + # incompatible with the Cstd library. Avoid specifying + # it if it's in CXXFLAGS. Ignore libCrun as + # -library=stlport4 depends on it. + case " $CXX $CXXFLAGS " in + *" -library=stlport4 "*) + solaris_use_stlport4=yes + ;; + esac + + # Adding this requires a known-good setup of shared libraries for + # Sun compiler versions before 5.6, else PIC objects from an old + # archive will be linked into the output, leading to subtle bugs. + if test "$solaris_use_stlport4" != yes; then + _LT_TAGVAR(postdeps,$1)='-library=Cstd -library=Crun' + fi + ;; + esac + ;; +esac +]) + +case " $_LT_TAGVAR(postdeps, $1) " in +*" -lc "*) _LT_TAGVAR(archive_cmds_need_lc, $1)=no ;; +esac + _LT_TAGVAR(compiler_lib_search_dirs, $1)= +if test -n "${_LT_TAGVAR(compiler_lib_search_path, $1)}"; then + _LT_TAGVAR(compiler_lib_search_dirs, $1)=`echo " ${_LT_TAGVAR(compiler_lib_search_path, $1)}" | ${SED} -e 's! -L! !g' -e 's!^ !!'` +fi +_LT_TAGDECL([], [compiler_lib_search_dirs], [1], + [The directories searched by this compiler when creating a shared library]) +_LT_TAGDECL([], [predep_objects], [1], + [Dependencies to place before and after the objects being linked to + create a shared library]) +_LT_TAGDECL([], [postdep_objects], [1]) +_LT_TAGDECL([], [predeps], [1]) +_LT_TAGDECL([], [postdeps], [1]) +_LT_TAGDECL([], [compiler_lib_search_path], [1], + [The library search path used internally by the compiler when linking + a shared library]) +])# _LT_SYS_HIDDEN_LIBDEPS + + +# _LT_LANG_F77_CONFIG([TAG]) +# -------------------------- +# Ensure that the configuration variables for a Fortran 77 compiler are +# suitably defined. These variables are subsequently used by _LT_CONFIG +# to write the compiler configuration to `libtool'. +m4_defun([_LT_LANG_F77_CONFIG], +[AC_LANG_PUSH(Fortran 77) +if test -z "$F77" || test "X$F77" = "Xno"; then + _lt_disable_F77=yes +fi + +_LT_TAGVAR(archive_cmds_need_lc, $1)=no +_LT_TAGVAR(allow_undefined_flag, $1)= +_LT_TAGVAR(always_export_symbols, $1)=no +_LT_TAGVAR(archive_expsym_cmds, $1)= +_LT_TAGVAR(export_dynamic_flag_spec, $1)= +_LT_TAGVAR(hardcode_direct, $1)=no +_LT_TAGVAR(hardcode_direct_absolute, $1)=no +_LT_TAGVAR(hardcode_libdir_flag_spec, $1)= +_LT_TAGVAR(hardcode_libdir_separator, $1)= +_LT_TAGVAR(hardcode_minus_L, $1)=no +_LT_TAGVAR(hardcode_automatic, $1)=no +_LT_TAGVAR(inherit_rpath, $1)=no +_LT_TAGVAR(module_cmds, $1)= +_LT_TAGVAR(module_expsym_cmds, $1)= +_LT_TAGVAR(link_all_deplibs, $1)=unknown +_LT_TAGVAR(old_archive_cmds, $1)=$old_archive_cmds +_LT_TAGVAR(reload_flag, $1)=$reload_flag +_LT_TAGVAR(reload_cmds, $1)=$reload_cmds +_LT_TAGVAR(no_undefined_flag, $1)= +_LT_TAGVAR(whole_archive_flag_spec, $1)= +_LT_TAGVAR(enable_shared_with_static_runtimes, $1)=no + +# Source file extension for f77 test sources. +ac_ext=f + +# Object file extension for compiled f77 test sources. +objext=o +_LT_TAGVAR(objext, $1)=$objext + +# No sense in running all these tests if we already determined that +# the F77 compiler isn't working. Some variables (like enable_shared) +# are currently assumed to apply to all compilers on this platform, +# and will be corrupted by setting them based on a non-working compiler. +if test "$_lt_disable_F77" != yes; then + # Code to be used in simple compile tests + lt_simple_compile_test_code="\ + subroutine t + return + end +" + + # Code to be used in simple link tests + lt_simple_link_test_code="\ + program t + end +" + + # ltmain only uses $CC for tagged configurations so make sure $CC is set. + _LT_TAG_COMPILER + + # save warnings/boilerplate of simple test code + _LT_COMPILER_BOILERPLATE + _LT_LINKER_BOILERPLATE + + # Allow CC to be a program name with arguments. + lt_save_CC="$CC" + lt_save_GCC=$GCC + lt_save_CFLAGS=$CFLAGS + CC=${F77-"f77"} + CFLAGS=$FFLAGS + compiler=$CC + _LT_TAGVAR(compiler, $1)=$CC + _LT_CC_BASENAME([$compiler]) + GCC=$G77 + if test -n "$compiler"; then + AC_MSG_CHECKING([if libtool supports shared libraries]) + AC_MSG_RESULT([$can_build_shared]) + + AC_MSG_CHECKING([whether to build shared libraries]) + test "$can_build_shared" = "no" && enable_shared=no + + # On AIX, shared libraries and static libraries use the same namespace, and + # are all built from PIC. + case $host_os in + aix3*) + test "$enable_shared" = yes && enable_static=no + if test -n "$RANLIB"; then + archive_cmds="$archive_cmds~\$RANLIB \$lib" + postinstall_cmds='$RANLIB $lib' + fi + ;; + aix[[4-9]]*) + if test "$host_cpu" != ia64 && test "$aix_use_runtimelinking" = no ; then + test "$enable_shared" = yes && enable_static=no + fi + ;; + esac + AC_MSG_RESULT([$enable_shared]) + + AC_MSG_CHECKING([whether to build static libraries]) + # Make sure either enable_shared or enable_static is yes. + test "$enable_shared" = yes || enable_static=yes + AC_MSG_RESULT([$enable_static]) + + _LT_TAGVAR(GCC, $1)="$G77" + _LT_TAGVAR(LD, $1)="$LD" + + ## CAVEAT EMPTOR: + ## There is no encapsulation within the following macros, do not change + ## the running order or otherwise move them around unless you know exactly + ## what you are doing... + _LT_COMPILER_PIC($1) + _LT_COMPILER_C_O($1) + _LT_COMPILER_FILE_LOCKS($1) + _LT_LINKER_SHLIBS($1) + _LT_SYS_DYNAMIC_LINKER($1) + _LT_LINKER_HARDCODE_LIBPATH($1) + + _LT_CONFIG($1) + fi # test -n "$compiler" + + GCC=$lt_save_GCC + CC="$lt_save_CC" + CFLAGS="$lt_save_CFLAGS" +fi # test "$_lt_disable_F77" != yes + +AC_LANG_POP +])# _LT_LANG_F77_CONFIG + + +# _LT_LANG_FC_CONFIG([TAG]) +# ------------------------- +# Ensure that the configuration variables for a Fortran compiler are +# suitably defined. These variables are subsequently used by _LT_CONFIG +# to write the compiler configuration to `libtool'. +m4_defun([_LT_LANG_FC_CONFIG], +[AC_LANG_PUSH(Fortran) + +if test -z "$FC" || test "X$FC" = "Xno"; then + _lt_disable_FC=yes +fi + +_LT_TAGVAR(archive_cmds_need_lc, $1)=no +_LT_TAGVAR(allow_undefined_flag, $1)= +_LT_TAGVAR(always_export_symbols, $1)=no +_LT_TAGVAR(archive_expsym_cmds, $1)= +_LT_TAGVAR(export_dynamic_flag_spec, $1)= +_LT_TAGVAR(hardcode_direct, $1)=no +_LT_TAGVAR(hardcode_direct_absolute, $1)=no +_LT_TAGVAR(hardcode_libdir_flag_spec, $1)= +_LT_TAGVAR(hardcode_libdir_separator, $1)= +_LT_TAGVAR(hardcode_minus_L, $1)=no +_LT_TAGVAR(hardcode_automatic, $1)=no +_LT_TAGVAR(inherit_rpath, $1)=no +_LT_TAGVAR(module_cmds, $1)= +_LT_TAGVAR(module_expsym_cmds, $1)= +_LT_TAGVAR(link_all_deplibs, $1)=unknown +_LT_TAGVAR(old_archive_cmds, $1)=$old_archive_cmds +_LT_TAGVAR(reload_flag, $1)=$reload_flag +_LT_TAGVAR(reload_cmds, $1)=$reload_cmds +_LT_TAGVAR(no_undefined_flag, $1)= +_LT_TAGVAR(whole_archive_flag_spec, $1)= +_LT_TAGVAR(enable_shared_with_static_runtimes, $1)=no + +# Source file extension for fc test sources. +ac_ext=${ac_fc_srcext-f} + +# Object file extension for compiled fc test sources. +objext=o +_LT_TAGVAR(objext, $1)=$objext + +# No sense in running all these tests if we already determined that +# the FC compiler isn't working. Some variables (like enable_shared) +# are currently assumed to apply to all compilers on this platform, +# and will be corrupted by setting them based on a non-working compiler. +if test "$_lt_disable_FC" != yes; then + # Code to be used in simple compile tests + lt_simple_compile_test_code="\ + subroutine t + return + end +" + + # Code to be used in simple link tests + lt_simple_link_test_code="\ + program t + end +" + + # ltmain only uses $CC for tagged configurations so make sure $CC is set. + _LT_TAG_COMPILER + + # save warnings/boilerplate of simple test code + _LT_COMPILER_BOILERPLATE + _LT_LINKER_BOILERPLATE + + # Allow CC to be a program name with arguments. + lt_save_CC="$CC" + lt_save_GCC=$GCC + lt_save_CFLAGS=$CFLAGS + CC=${FC-"f95"} + CFLAGS=$FCFLAGS + compiler=$CC + GCC=$ac_cv_fc_compiler_gnu + + _LT_TAGVAR(compiler, $1)=$CC + _LT_CC_BASENAME([$compiler]) + + if test -n "$compiler"; then + AC_MSG_CHECKING([if libtool supports shared libraries]) + AC_MSG_RESULT([$can_build_shared]) + + AC_MSG_CHECKING([whether to build shared libraries]) + test "$can_build_shared" = "no" && enable_shared=no + + # On AIX, shared libraries and static libraries use the same namespace, and + # are all built from PIC. + case $host_os in + aix3*) + test "$enable_shared" = yes && enable_static=no + if test -n "$RANLIB"; then + archive_cmds="$archive_cmds~\$RANLIB \$lib" + postinstall_cmds='$RANLIB $lib' + fi + ;; + aix[[4-9]]*) + if test "$host_cpu" != ia64 && test "$aix_use_runtimelinking" = no ; then + test "$enable_shared" = yes && enable_static=no + fi + ;; + esac + AC_MSG_RESULT([$enable_shared]) + + AC_MSG_CHECKING([whether to build static libraries]) + # Make sure either enable_shared or enable_static is yes. + test "$enable_shared" = yes || enable_static=yes + AC_MSG_RESULT([$enable_static]) + + _LT_TAGVAR(GCC, $1)="$ac_cv_fc_compiler_gnu" + _LT_TAGVAR(LD, $1)="$LD" + + ## CAVEAT EMPTOR: + ## There is no encapsulation within the following macros, do not change + ## the running order or otherwise move them around unless you know exactly + ## what you are doing... + _LT_SYS_HIDDEN_LIBDEPS($1) + _LT_COMPILER_PIC($1) + _LT_COMPILER_C_O($1) + _LT_COMPILER_FILE_LOCKS($1) + _LT_LINKER_SHLIBS($1) + _LT_SYS_DYNAMIC_LINKER($1) + _LT_LINKER_HARDCODE_LIBPATH($1) + + _LT_CONFIG($1) + fi # test -n "$compiler" + + GCC=$lt_save_GCC + CC=$lt_save_CC + CFLAGS=$lt_save_CFLAGS +fi # test "$_lt_disable_FC" != yes + +AC_LANG_POP +])# _LT_LANG_FC_CONFIG + + +# _LT_LANG_GCJ_CONFIG([TAG]) +# -------------------------- +# Ensure that the configuration variables for the GNU Java Compiler compiler +# are suitably defined. These variables are subsequently used by _LT_CONFIG +# to write the compiler configuration to `libtool'. +m4_defun([_LT_LANG_GCJ_CONFIG], +[AC_REQUIRE([LT_PROG_GCJ])dnl +AC_LANG_SAVE + +# Source file extension for Java test sources. +ac_ext=java + +# Object file extension for compiled Java test sources. +objext=o +_LT_TAGVAR(objext, $1)=$objext + +# Code to be used in simple compile tests +lt_simple_compile_test_code="class foo {}" + +# Code to be used in simple link tests +lt_simple_link_test_code='public class conftest { public static void main(String[[]] argv) {}; }' + +# ltmain only uses $CC for tagged configurations so make sure $CC is set. +_LT_TAG_COMPILER + +# save warnings/boilerplate of simple test code +_LT_COMPILER_BOILERPLATE +_LT_LINKER_BOILERPLATE + +# Allow CC to be a program name with arguments. +lt_save_CC=$CC +lt_save_CFLAGS=$CFLAGS +lt_save_GCC=$GCC +GCC=yes +CC=${GCJ-"gcj"} +CFLAGS=$GCJFLAGS +compiler=$CC +_LT_TAGVAR(compiler, $1)=$CC +_LT_TAGVAR(LD, $1)="$LD" +_LT_CC_BASENAME([$compiler]) + +# GCJ did not exist at the time GCC didn't implicitly link libc in. +_LT_TAGVAR(archive_cmds_need_lc, $1)=no + +_LT_TAGVAR(old_archive_cmds, $1)=$old_archive_cmds +_LT_TAGVAR(reload_flag, $1)=$reload_flag +_LT_TAGVAR(reload_cmds, $1)=$reload_cmds + +if test -n "$compiler"; then + _LT_COMPILER_NO_RTTI($1) + _LT_COMPILER_PIC($1) + _LT_COMPILER_C_O($1) + _LT_COMPILER_FILE_LOCKS($1) + _LT_LINKER_SHLIBS($1) + _LT_LINKER_HARDCODE_LIBPATH($1) + + _LT_CONFIG($1) +fi + +AC_LANG_RESTORE + +GCC=$lt_save_GCC +CC=$lt_save_CC +CFLAGS=$lt_save_CFLAGS +])# _LT_LANG_GCJ_CONFIG + + +# _LT_LANG_GO_CONFIG([TAG]) +# -------------------------- +# Ensure that the configuration variables for the GNU Go compiler +# are suitably defined. These variables are subsequently used by _LT_CONFIG +# to write the compiler configuration to `libtool'. +m4_defun([_LT_LANG_GO_CONFIG], +[AC_REQUIRE([LT_PROG_GO])dnl +AC_LANG_SAVE + +# Source file extension for Go test sources. +ac_ext=go + +# Object file extension for compiled Go test sources. +objext=o +_LT_TAGVAR(objext, $1)=$objext + +# Code to be used in simple compile tests +lt_simple_compile_test_code="package main; func main() { }" + +# Code to be used in simple link tests +lt_simple_link_test_code='package main; func main() { }' + +# ltmain only uses $CC for tagged configurations so make sure $CC is set. +_LT_TAG_COMPILER + +# save warnings/boilerplate of simple test code +_LT_COMPILER_BOILERPLATE +_LT_LINKER_BOILERPLATE + +# Allow CC to be a program name with arguments. +lt_save_CC=$CC +lt_save_CFLAGS=$CFLAGS +lt_save_GCC=$GCC +GCC=yes +CC=${GOC-"gccgo"} +CFLAGS=$GOFLAGS +compiler=$CC +_LT_TAGVAR(compiler, $1)=$CC +_LT_TAGVAR(LD, $1)="$LD" +_LT_CC_BASENAME([$compiler]) + +# Go did not exist at the time GCC didn't implicitly link libc in. +_LT_TAGVAR(archive_cmds_need_lc, $1)=no + +_LT_TAGVAR(old_archive_cmds, $1)=$old_archive_cmds +_LT_TAGVAR(reload_flag, $1)=$reload_flag +_LT_TAGVAR(reload_cmds, $1)=$reload_cmds + +if test -n "$compiler"; then + _LT_COMPILER_NO_RTTI($1) + _LT_COMPILER_PIC($1) + _LT_COMPILER_C_O($1) + _LT_COMPILER_FILE_LOCKS($1) + _LT_LINKER_SHLIBS($1) + _LT_LINKER_HARDCODE_LIBPATH($1) + + _LT_CONFIG($1) +fi + +AC_LANG_RESTORE + +GCC=$lt_save_GCC +CC=$lt_save_CC +CFLAGS=$lt_save_CFLAGS +])# _LT_LANG_GO_CONFIG + + +# _LT_LANG_RC_CONFIG([TAG]) +# ------------------------- +# Ensure that the configuration variables for the Windows resource compiler +# are suitably defined. These variables are subsequently used by _LT_CONFIG +# to write the compiler configuration to `libtool'. +m4_defun([_LT_LANG_RC_CONFIG], +[AC_REQUIRE([LT_PROG_RC])dnl +AC_LANG_SAVE + +# Source file extension for RC test sources. +ac_ext=rc + +# Object file extension for compiled RC test sources. +objext=o +_LT_TAGVAR(objext, $1)=$objext + +# Code to be used in simple compile tests +lt_simple_compile_test_code='sample MENU { MENUITEM "&Soup", 100, CHECKED }' + +# Code to be used in simple link tests +lt_simple_link_test_code="$lt_simple_compile_test_code" + +# ltmain only uses $CC for tagged configurations so make sure $CC is set. +_LT_TAG_COMPILER + +# save warnings/boilerplate of simple test code +_LT_COMPILER_BOILERPLATE +_LT_LINKER_BOILERPLATE + +# Allow CC to be a program name with arguments. +lt_save_CC="$CC" +lt_save_CFLAGS=$CFLAGS +lt_save_GCC=$GCC +GCC= +CC=${RC-"windres"} +CFLAGS= +compiler=$CC +_LT_TAGVAR(compiler, $1)=$CC +_LT_CC_BASENAME([$compiler]) +_LT_TAGVAR(lt_cv_prog_compiler_c_o, $1)=yes + +if test -n "$compiler"; then + : + _LT_CONFIG($1) +fi + +GCC=$lt_save_GCC +AC_LANG_RESTORE +CC=$lt_save_CC +CFLAGS=$lt_save_CFLAGS +])# _LT_LANG_RC_CONFIG + + +# LT_PROG_GCJ +# ----------- +AC_DEFUN([LT_PROG_GCJ], +[m4_ifdef([AC_PROG_GCJ], [AC_PROG_GCJ], + [m4_ifdef([A][M_PROG_GCJ], [A][M_PROG_GCJ], + [AC_CHECK_TOOL(GCJ, gcj,) + test "x${GCJFLAGS+set}" = xset || GCJFLAGS="-g -O2" + AC_SUBST(GCJFLAGS)])])[]dnl +]) + +# Old name: +AU_ALIAS([LT_AC_PROG_GCJ], [LT_PROG_GCJ]) +dnl aclocal-1.4 backwards compatibility: +dnl AC_DEFUN([LT_AC_PROG_GCJ], []) + + +# LT_PROG_GO +# ---------- +AC_DEFUN([LT_PROG_GO], +[AC_CHECK_TOOL(GOC, gccgo,) +]) + + +# LT_PROG_RC +# ---------- +AC_DEFUN([LT_PROG_RC], +[AC_CHECK_TOOL(RC, windres,) +]) + +# Old name: +AU_ALIAS([LT_AC_PROG_RC], [LT_PROG_RC]) +dnl aclocal-1.4 backwards compatibility: +dnl AC_DEFUN([LT_AC_PROG_RC], []) + + +# _LT_DECL_EGREP +# -------------- +# If we don't have a new enough Autoconf to choose the best grep +# available, choose the one first in the user's PATH. +m4_defun([_LT_DECL_EGREP], +[AC_REQUIRE([AC_PROG_EGREP])dnl +AC_REQUIRE([AC_PROG_FGREP])dnl +test -z "$GREP" && GREP=grep +_LT_DECL([], [GREP], [1], [A grep program that handles long lines]) +_LT_DECL([], [EGREP], [1], [An ERE matcher]) +_LT_DECL([], [FGREP], [1], [A literal string matcher]) +dnl Non-bleeding-edge autoconf doesn't subst GREP, so do it here too +AC_SUBST([GREP]) +]) + + +# _LT_DECL_OBJDUMP +# -------------- +# If we don't have a new enough Autoconf to choose the best objdump +# available, choose the one first in the user's PATH. +m4_defun([_LT_DECL_OBJDUMP], +[AC_CHECK_TOOL(OBJDUMP, objdump, false) +test -z "$OBJDUMP" && OBJDUMP=objdump +_LT_DECL([], [OBJDUMP], [1], [An object symbol dumper]) +AC_SUBST([OBJDUMP]) +]) + +# _LT_DECL_DLLTOOL +# ---------------- +# Ensure DLLTOOL variable is set. +m4_defun([_LT_DECL_DLLTOOL], +[AC_CHECK_TOOL(DLLTOOL, dlltool, false) +test -z "$DLLTOOL" && DLLTOOL=dlltool +_LT_DECL([], [DLLTOOL], [1], [DLL creation program]) +AC_SUBST([DLLTOOL]) +]) + +# _LT_DECL_SED +# ------------ +# Check for a fully-functional sed program, that truncates +# as few characters as possible. Prefer GNU sed if found. +m4_defun([_LT_DECL_SED], +[AC_PROG_SED +test -z "$SED" && SED=sed +Xsed="$SED -e 1s/^X//" +_LT_DECL([], [SED], [1], [A sed program that does not truncate output]) +_LT_DECL([], [Xsed], ["\$SED -e 1s/^X//"], + [Sed that helps us avoid accidentally triggering echo(1) options like -n]) +])# _LT_DECL_SED + +m4_ifndef([AC_PROG_SED], [ +# NOTE: This macro has been submitted for inclusion into # +# GNU Autoconf as AC_PROG_SED. When it is available in # +# a released version of Autoconf we should remove this # +# macro and use it instead. # + +m4_defun([AC_PROG_SED], +[AC_MSG_CHECKING([for a sed that does not truncate output]) +AC_CACHE_VAL(lt_cv_path_SED, +[# Loop through the user's path and test for sed and gsed. +# Then use that list of sed's as ones to test for truncation. +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for lt_ac_prog in sed gsed; do + for ac_exec_ext in '' $ac_executable_extensions; do + if $as_executable_p "$as_dir/$lt_ac_prog$ac_exec_ext"; then + lt_ac_sed_list="$lt_ac_sed_list $as_dir/$lt_ac_prog$ac_exec_ext" + fi + done + done +done +IFS=$as_save_IFS +lt_ac_max=0 +lt_ac_count=0 +# Add /usr/xpg4/bin/sed as it is typically found on Solaris +# along with /bin/sed that truncates output. +for lt_ac_sed in $lt_ac_sed_list /usr/xpg4/bin/sed; do + test ! -f $lt_ac_sed && continue + cat /dev/null > conftest.in + lt_ac_count=0 + echo $ECHO_N "0123456789$ECHO_C" >conftest.in + # Check for GNU sed and select it if it is found. + if "$lt_ac_sed" --version 2>&1 < /dev/null | grep 'GNU' > /dev/null; then + lt_cv_path_SED=$lt_ac_sed + break + fi + while true; do + cat conftest.in conftest.in >conftest.tmp + mv conftest.tmp conftest.in + cp conftest.in conftest.nl + echo >>conftest.nl + $lt_ac_sed -e 's/a$//' < conftest.nl >conftest.out || break + cmp -s conftest.out conftest.nl || break + # 10000 chars as input seems more than enough + test $lt_ac_count -gt 10 && break + lt_ac_count=`expr $lt_ac_count + 1` + if test $lt_ac_count -gt $lt_ac_max; then + lt_ac_max=$lt_ac_count + lt_cv_path_SED=$lt_ac_sed + fi + done +done +]) +SED=$lt_cv_path_SED +AC_SUBST([SED]) +AC_MSG_RESULT([$SED]) +])#AC_PROG_SED +])#m4_ifndef + +# Old name: +AU_ALIAS([LT_AC_PROG_SED], [AC_PROG_SED]) +dnl aclocal-1.4 backwards compatibility: +dnl AC_DEFUN([LT_AC_PROG_SED], []) + + +# _LT_CHECK_SHELL_FEATURES +# ------------------------ +# Find out whether the shell is Bourne or XSI compatible, +# or has some other useful features. +m4_defun([_LT_CHECK_SHELL_FEATURES], +[AC_MSG_CHECKING([whether the shell understands some XSI constructs]) +# Try some XSI features +xsi_shell=no +( _lt_dummy="a/b/c" + test "${_lt_dummy##*/},${_lt_dummy%/*},${_lt_dummy#??}"${_lt_dummy%"$_lt_dummy"}, \ + = c,a/b,b/c, \ + && eval 'test $(( 1 + 1 )) -eq 2 \ + && test "${#_lt_dummy}" -eq 5' ) >/dev/null 2>&1 \ + && xsi_shell=yes +AC_MSG_RESULT([$xsi_shell]) +_LT_CONFIG_LIBTOOL_INIT([xsi_shell='$xsi_shell']) + +AC_MSG_CHECKING([whether the shell understands "+="]) +lt_shell_append=no +( foo=bar; set foo baz; eval "$[1]+=\$[2]" && test "$foo" = barbaz ) \ + >/dev/null 2>&1 \ + && lt_shell_append=yes +AC_MSG_RESULT([$lt_shell_append]) +_LT_CONFIG_LIBTOOL_INIT([lt_shell_append='$lt_shell_append']) + +if ( (MAIL=60; unset MAIL) || exit) >/dev/null 2>&1; then + lt_unset=unset +else + lt_unset=false +fi +_LT_DECL([], [lt_unset], [0], [whether the shell understands "unset"])dnl + +# test EBCDIC or ASCII +case `echo X|tr X '\101'` in + A) # ASCII based system + # \n is not interpreted correctly by Solaris 8 /usr/ucb/tr + lt_SP2NL='tr \040 \012' + lt_NL2SP='tr \015\012 \040\040' + ;; + *) # EBCDIC based system + lt_SP2NL='tr \100 \n' + lt_NL2SP='tr \r\n \100\100' + ;; +esac +_LT_DECL([SP2NL], [lt_SP2NL], [1], [turn spaces into newlines])dnl +_LT_DECL([NL2SP], [lt_NL2SP], [1], [turn newlines into spaces])dnl +])# _LT_CHECK_SHELL_FEATURES + + +# _LT_PROG_FUNCTION_REPLACE (FUNCNAME, REPLACEMENT-BODY) +# ------------------------------------------------------ +# In `$cfgfile', look for function FUNCNAME delimited by `^FUNCNAME ()$' and +# '^} FUNCNAME ', and replace its body with REPLACEMENT-BODY. +m4_defun([_LT_PROG_FUNCTION_REPLACE], +[dnl { +sed -e '/^$1 ()$/,/^} # $1 /c\ +$1 ()\ +{\ +m4_bpatsubsts([$2], [$], [\\], [^\([ ]\)], [\\\1]) +} # Extended-shell $1 implementation' "$cfgfile" > $cfgfile.tmp \ + && mv -f "$cfgfile.tmp" "$cfgfile" \ + || (rm -f "$cfgfile" && cp "$cfgfile.tmp" "$cfgfile" && rm -f "$cfgfile.tmp") +test 0 -eq $? || _lt_function_replace_fail=: +]) + + +# _LT_PROG_REPLACE_SHELLFNS +# ------------------------- +# Replace existing portable implementations of several shell functions with +# equivalent extended shell implementations where those features are available.. +m4_defun([_LT_PROG_REPLACE_SHELLFNS], +[if test x"$xsi_shell" = xyes; then + _LT_PROG_FUNCTION_REPLACE([func_dirname], [dnl + case ${1} in + */*) func_dirname_result="${1%/*}${2}" ;; + * ) func_dirname_result="${3}" ;; + esac]) + + _LT_PROG_FUNCTION_REPLACE([func_basename], [dnl + func_basename_result="${1##*/}"]) + + _LT_PROG_FUNCTION_REPLACE([func_dirname_and_basename], [dnl + case ${1} in + */*) func_dirname_result="${1%/*}${2}" ;; + * ) func_dirname_result="${3}" ;; + esac + func_basename_result="${1##*/}"]) + + _LT_PROG_FUNCTION_REPLACE([func_stripname], [dnl + # pdksh 5.2.14 does not do ${X%$Y} correctly if both X and Y are + # positional parameters, so assign one to ordinary parameter first. + func_stripname_result=${3} + func_stripname_result=${func_stripname_result#"${1}"} + func_stripname_result=${func_stripname_result%"${2}"}]) + + _LT_PROG_FUNCTION_REPLACE([func_split_long_opt], [dnl + func_split_long_opt_name=${1%%=*} + func_split_long_opt_arg=${1#*=}]) + + _LT_PROG_FUNCTION_REPLACE([func_split_short_opt], [dnl + func_split_short_opt_arg=${1#??} + func_split_short_opt_name=${1%"$func_split_short_opt_arg"}]) + + _LT_PROG_FUNCTION_REPLACE([func_lo2o], [dnl + case ${1} in + *.lo) func_lo2o_result=${1%.lo}.${objext} ;; + *) func_lo2o_result=${1} ;; + esac]) + + _LT_PROG_FUNCTION_REPLACE([func_xform], [ func_xform_result=${1%.*}.lo]) + + _LT_PROG_FUNCTION_REPLACE([func_arith], [ func_arith_result=$(( $[*] ))]) + + _LT_PROG_FUNCTION_REPLACE([func_len], [ func_len_result=${#1}]) +fi + +if test x"$lt_shell_append" = xyes; then + _LT_PROG_FUNCTION_REPLACE([func_append], [ eval "${1}+=\\${2}"]) + + _LT_PROG_FUNCTION_REPLACE([func_append_quoted], [dnl + func_quote_for_eval "${2}" +dnl m4 expansion turns \\\\ into \\, and then the shell eval turns that into \ + eval "${1}+=\\\\ \\$func_quote_for_eval_result"]) + + # Save a `func_append' function call where possible by direct use of '+=' + sed -e 's%func_append \([[a-zA-Z_]]\{1,\}\) "%\1+="%g' $cfgfile > $cfgfile.tmp \ + && mv -f "$cfgfile.tmp" "$cfgfile" \ + || (rm -f "$cfgfile" && cp "$cfgfile.tmp" "$cfgfile" && rm -f "$cfgfile.tmp") + test 0 -eq $? || _lt_function_replace_fail=: +else + # Save a `func_append' function call even when '+=' is not available + sed -e 's%func_append \([[a-zA-Z_]]\{1,\}\) "%\1="$\1%g' $cfgfile > $cfgfile.tmp \ + && mv -f "$cfgfile.tmp" "$cfgfile" \ + || (rm -f "$cfgfile" && cp "$cfgfile.tmp" "$cfgfile" && rm -f "$cfgfile.tmp") + test 0 -eq $? || _lt_function_replace_fail=: +fi + +if test x"$_lt_function_replace_fail" = x":"; then + AC_MSG_WARN([Unable to substitute extended shell functions in $ofile]) +fi +]) + +# _LT_PATH_CONVERSION_FUNCTIONS +# ----------------------------- +# Determine which file name conversion functions should be used by +# func_to_host_file (and, implicitly, by func_to_host_path). These are needed +# for certain cross-compile configurations and native mingw. +m4_defun([_LT_PATH_CONVERSION_FUNCTIONS], +[AC_REQUIRE([AC_CANONICAL_HOST])dnl +AC_REQUIRE([AC_CANONICAL_BUILD])dnl +AC_MSG_CHECKING([how to convert $build file names to $host format]) +AC_CACHE_VAL(lt_cv_to_host_file_cmd, +[case $host in + *-*-mingw* ) + case $build in + *-*-mingw* ) # actually msys + lt_cv_to_host_file_cmd=func_convert_file_msys_to_w32 + ;; + *-*-cygwin* ) + lt_cv_to_host_file_cmd=func_convert_file_cygwin_to_w32 + ;; + * ) # otherwise, assume *nix + lt_cv_to_host_file_cmd=func_convert_file_nix_to_w32 + ;; + esac + ;; + *-*-cygwin* ) + case $build in + *-*-mingw* ) # actually msys + lt_cv_to_host_file_cmd=func_convert_file_msys_to_cygwin + ;; + *-*-cygwin* ) + lt_cv_to_host_file_cmd=func_convert_file_noop + ;; + * ) # otherwise, assume *nix + lt_cv_to_host_file_cmd=func_convert_file_nix_to_cygwin + ;; + esac + ;; + * ) # unhandled hosts (and "normal" native builds) + lt_cv_to_host_file_cmd=func_convert_file_noop + ;; +esac +]) +to_host_file_cmd=$lt_cv_to_host_file_cmd +AC_MSG_RESULT([$lt_cv_to_host_file_cmd]) +_LT_DECL([to_host_file_cmd], [lt_cv_to_host_file_cmd], + [0], [convert $build file names to $host format])dnl + +AC_MSG_CHECKING([how to convert $build file names to toolchain format]) +AC_CACHE_VAL(lt_cv_to_tool_file_cmd, +[#assume ordinary cross tools, or native build. +lt_cv_to_tool_file_cmd=func_convert_file_noop +case $host in + *-*-mingw* ) + case $build in + *-*-mingw* ) # actually msys + lt_cv_to_tool_file_cmd=func_convert_file_msys_to_w32 + ;; + esac + ;; +esac +]) +to_tool_file_cmd=$lt_cv_to_tool_file_cmd +AC_MSG_RESULT([$lt_cv_to_tool_file_cmd]) +_LT_DECL([to_tool_file_cmd], [lt_cv_to_tool_file_cmd], + [0], [convert $build files to toolchain format])dnl +])# _LT_PATH_CONVERSION_FUNCTIONS + +# Helper functions for option handling. -*- Autoconf -*- +# +# Copyright (C) 2004, 2005, 2007, 2008, 2009 Free Software Foundation, +# Inc. +# Written by Gary V. Vaughan, 2004 +# +# This file is free software; the Free Software Foundation gives +# unlimited permission to copy and/or distribute it, with or without +# modifications, as long as this notice is preserved. + +# serial 7 ltoptions.m4 + +# This is to help aclocal find these macros, as it can't see m4_define. +AC_DEFUN([LTOPTIONS_VERSION], [m4_if([1])]) + + +# _LT_MANGLE_OPTION(MACRO-NAME, OPTION-NAME) +# ------------------------------------------ +m4_define([_LT_MANGLE_OPTION], +[[_LT_OPTION_]m4_bpatsubst($1__$2, [[^a-zA-Z0-9_]], [_])]) + + +# _LT_SET_OPTION(MACRO-NAME, OPTION-NAME) +# --------------------------------------- +# Set option OPTION-NAME for macro MACRO-NAME, and if there is a +# matching handler defined, dispatch to it. Other OPTION-NAMEs are +# saved as a flag. +m4_define([_LT_SET_OPTION], +[m4_define(_LT_MANGLE_OPTION([$1], [$2]))dnl +m4_ifdef(_LT_MANGLE_DEFUN([$1], [$2]), + _LT_MANGLE_DEFUN([$1], [$2]), + [m4_warning([Unknown $1 option `$2'])])[]dnl +]) + + +# _LT_IF_OPTION(MACRO-NAME, OPTION-NAME, IF-SET, [IF-NOT-SET]) +# ------------------------------------------------------------ +# Execute IF-SET if OPTION is set, IF-NOT-SET otherwise. +m4_define([_LT_IF_OPTION], +[m4_ifdef(_LT_MANGLE_OPTION([$1], [$2]), [$3], [$4])]) + + +# _LT_UNLESS_OPTIONS(MACRO-NAME, OPTION-LIST, IF-NOT-SET) +# ------------------------------------------------------- +# Execute IF-NOT-SET unless all options in OPTION-LIST for MACRO-NAME +# are set. +m4_define([_LT_UNLESS_OPTIONS], +[m4_foreach([_LT_Option], m4_split(m4_normalize([$2])), + [m4_ifdef(_LT_MANGLE_OPTION([$1], _LT_Option), + [m4_define([$0_found])])])[]dnl +m4_ifdef([$0_found], [m4_undefine([$0_found])], [$3 +])[]dnl +]) + + +# _LT_SET_OPTIONS(MACRO-NAME, OPTION-LIST) +# ---------------------------------------- +# OPTION-LIST is a space-separated list of Libtool options associated +# with MACRO-NAME. If any OPTION has a matching handler declared with +# LT_OPTION_DEFINE, dispatch to that macro; otherwise complain about +# the unknown option and exit. +m4_defun([_LT_SET_OPTIONS], +[# Set options +m4_foreach([_LT_Option], m4_split(m4_normalize([$2])), + [_LT_SET_OPTION([$1], _LT_Option)]) + +m4_if([$1],[LT_INIT],[ + dnl + dnl Simply set some default values (i.e off) if boolean options were not + dnl specified: + _LT_UNLESS_OPTIONS([LT_INIT], [dlopen], [enable_dlopen=no + ]) + _LT_UNLESS_OPTIONS([LT_INIT], [win32-dll], [enable_win32_dll=no + ]) + dnl + dnl If no reference was made to various pairs of opposing options, then + dnl we run the default mode handler for the pair. For example, if neither + dnl `shared' nor `disable-shared' was passed, we enable building of shared + dnl archives by default: + _LT_UNLESS_OPTIONS([LT_INIT], [shared disable-shared], [_LT_ENABLE_SHARED]) + _LT_UNLESS_OPTIONS([LT_INIT], [static disable-static], [_LT_ENABLE_STATIC]) + _LT_UNLESS_OPTIONS([LT_INIT], [pic-only no-pic], [_LT_WITH_PIC]) + _LT_UNLESS_OPTIONS([LT_INIT], [fast-install disable-fast-install], + [_LT_ENABLE_FAST_INSTALL]) + ]) +])# _LT_SET_OPTIONS + + + +# _LT_MANGLE_DEFUN(MACRO-NAME, OPTION-NAME) +# ----------------------------------------- +m4_define([_LT_MANGLE_DEFUN], +[[_LT_OPTION_DEFUN_]m4_bpatsubst(m4_toupper([$1__$2]), [[^A-Z0-9_]], [_])]) + + +# LT_OPTION_DEFINE(MACRO-NAME, OPTION-NAME, CODE) +# ----------------------------------------------- +m4_define([LT_OPTION_DEFINE], +[m4_define(_LT_MANGLE_DEFUN([$1], [$2]), [$3])[]dnl +])# LT_OPTION_DEFINE + + +# dlopen +# ------ +LT_OPTION_DEFINE([LT_INIT], [dlopen], [enable_dlopen=yes +]) + +AU_DEFUN([AC_LIBTOOL_DLOPEN], +[_LT_SET_OPTION([LT_INIT], [dlopen]) +AC_DIAGNOSE([obsolete], +[$0: Remove this warning and the call to _LT_SET_OPTION when you +put the `dlopen' option into LT_INIT's first parameter.]) +]) + +dnl aclocal-1.4 backwards compatibility: +dnl AC_DEFUN([AC_LIBTOOL_DLOPEN], []) + + +# win32-dll +# --------- +# Declare package support for building win32 dll's. +LT_OPTION_DEFINE([LT_INIT], [win32-dll], +[enable_win32_dll=yes + +case $host in +*-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-cegcc*) + AC_CHECK_TOOL(AS, as, false) + AC_CHECK_TOOL(DLLTOOL, dlltool, false) + AC_CHECK_TOOL(OBJDUMP, objdump, false) + ;; +esac + +test -z "$AS" && AS=as +_LT_DECL([], [AS], [1], [Assembler program])dnl + +test -z "$DLLTOOL" && DLLTOOL=dlltool +_LT_DECL([], [DLLTOOL], [1], [DLL creation program])dnl + +test -z "$OBJDUMP" && OBJDUMP=objdump +_LT_DECL([], [OBJDUMP], [1], [Object dumper program])dnl +])# win32-dll + +AU_DEFUN([AC_LIBTOOL_WIN32_DLL], +[AC_REQUIRE([AC_CANONICAL_HOST])dnl +_LT_SET_OPTION([LT_INIT], [win32-dll]) +AC_DIAGNOSE([obsolete], +[$0: Remove this warning and the call to _LT_SET_OPTION when you +put the `win32-dll' option into LT_INIT's first parameter.]) +]) + +dnl aclocal-1.4 backwards compatibility: +dnl AC_DEFUN([AC_LIBTOOL_WIN32_DLL], []) + + +# _LT_ENABLE_SHARED([DEFAULT]) +# ---------------------------- +# implement the --enable-shared flag, and supports the `shared' and +# `disable-shared' LT_INIT options. +# DEFAULT is either `yes' or `no'. If omitted, it defaults to `yes'. +m4_define([_LT_ENABLE_SHARED], +[m4_define([_LT_ENABLE_SHARED_DEFAULT], [m4_if($1, no, no, yes)])dnl +AC_ARG_ENABLE([shared], + [AS_HELP_STRING([--enable-shared@<:@=PKGS@:>@], + [build shared libraries @<:@default=]_LT_ENABLE_SHARED_DEFAULT[@:>@])], + [p=${PACKAGE-default} + case $enableval in + yes) enable_shared=yes ;; + no) enable_shared=no ;; + *) + enable_shared=no + # Look at the argument we got. We use all the common list separators. + lt_save_ifs="$IFS"; IFS="${IFS}$PATH_SEPARATOR," + for pkg in $enableval; do + IFS="$lt_save_ifs" + if test "X$pkg" = "X$p"; then + enable_shared=yes + fi + done + IFS="$lt_save_ifs" + ;; + esac], + [enable_shared=]_LT_ENABLE_SHARED_DEFAULT) + + _LT_DECL([build_libtool_libs], [enable_shared], [0], + [Whether or not to build shared libraries]) +])# _LT_ENABLE_SHARED + +LT_OPTION_DEFINE([LT_INIT], [shared], [_LT_ENABLE_SHARED([yes])]) +LT_OPTION_DEFINE([LT_INIT], [disable-shared], [_LT_ENABLE_SHARED([no])]) + +# Old names: +AC_DEFUN([AC_ENABLE_SHARED], +[_LT_SET_OPTION([LT_INIT], m4_if([$1], [no], [disable-])[shared]) +]) + +AC_DEFUN([AC_DISABLE_SHARED], +[_LT_SET_OPTION([LT_INIT], [disable-shared]) +]) + +AU_DEFUN([AM_ENABLE_SHARED], [AC_ENABLE_SHARED($@)]) +AU_DEFUN([AM_DISABLE_SHARED], [AC_DISABLE_SHARED($@)]) + +dnl aclocal-1.4 backwards compatibility: +dnl AC_DEFUN([AM_ENABLE_SHARED], []) +dnl AC_DEFUN([AM_DISABLE_SHARED], []) + + + +# _LT_ENABLE_STATIC([DEFAULT]) +# ---------------------------- +# implement the --enable-static flag, and support the `static' and +# `disable-static' LT_INIT options. +# DEFAULT is either `yes' or `no'. If omitted, it defaults to `yes'. +m4_define([_LT_ENABLE_STATIC], +[m4_define([_LT_ENABLE_STATIC_DEFAULT], [m4_if($1, no, no, yes)])dnl +AC_ARG_ENABLE([static], + [AS_HELP_STRING([--enable-static@<:@=PKGS@:>@], + [build static libraries @<:@default=]_LT_ENABLE_STATIC_DEFAULT[@:>@])], + [p=${PACKAGE-default} + case $enableval in + yes) enable_static=yes ;; + no) enable_static=no ;; + *) + enable_static=no + # Look at the argument we got. We use all the common list separators. + lt_save_ifs="$IFS"; IFS="${IFS}$PATH_SEPARATOR," + for pkg in $enableval; do + IFS="$lt_save_ifs" + if test "X$pkg" = "X$p"; then + enable_static=yes + fi + done + IFS="$lt_save_ifs" + ;; + esac], + [enable_static=]_LT_ENABLE_STATIC_DEFAULT) + + _LT_DECL([build_old_libs], [enable_static], [0], + [Whether or not to build static libraries]) +])# _LT_ENABLE_STATIC + +LT_OPTION_DEFINE([LT_INIT], [static], [_LT_ENABLE_STATIC([yes])]) +LT_OPTION_DEFINE([LT_INIT], [disable-static], [_LT_ENABLE_STATIC([no])]) + +# Old names: +AC_DEFUN([AC_ENABLE_STATIC], +[_LT_SET_OPTION([LT_INIT], m4_if([$1], [no], [disable-])[static]) +]) + +AC_DEFUN([AC_DISABLE_STATIC], +[_LT_SET_OPTION([LT_INIT], [disable-static]) +]) + +AU_DEFUN([AM_ENABLE_STATIC], [AC_ENABLE_STATIC($@)]) +AU_DEFUN([AM_DISABLE_STATIC], [AC_DISABLE_STATIC($@)]) + +dnl aclocal-1.4 backwards compatibility: +dnl AC_DEFUN([AM_ENABLE_STATIC], []) +dnl AC_DEFUN([AM_DISABLE_STATIC], []) + + + +# _LT_ENABLE_FAST_INSTALL([DEFAULT]) +# ---------------------------------- +# implement the --enable-fast-install flag, and support the `fast-install' +# and `disable-fast-install' LT_INIT options. +# DEFAULT is either `yes' or `no'. If omitted, it defaults to `yes'. +m4_define([_LT_ENABLE_FAST_INSTALL], +[m4_define([_LT_ENABLE_FAST_INSTALL_DEFAULT], [m4_if($1, no, no, yes)])dnl +AC_ARG_ENABLE([fast-install], + [AS_HELP_STRING([--enable-fast-install@<:@=PKGS@:>@], + [optimize for fast installation @<:@default=]_LT_ENABLE_FAST_INSTALL_DEFAULT[@:>@])], + [p=${PACKAGE-default} + case $enableval in + yes) enable_fast_install=yes ;; + no) enable_fast_install=no ;; + *) + enable_fast_install=no + # Look at the argument we got. We use all the common list separators. + lt_save_ifs="$IFS"; IFS="${IFS}$PATH_SEPARATOR," + for pkg in $enableval; do + IFS="$lt_save_ifs" + if test "X$pkg" = "X$p"; then + enable_fast_install=yes + fi + done + IFS="$lt_save_ifs" + ;; + esac], + [enable_fast_install=]_LT_ENABLE_FAST_INSTALL_DEFAULT) + +_LT_DECL([fast_install], [enable_fast_install], [0], + [Whether or not to optimize for fast installation])dnl +])# _LT_ENABLE_FAST_INSTALL + +LT_OPTION_DEFINE([LT_INIT], [fast-install], [_LT_ENABLE_FAST_INSTALL([yes])]) +LT_OPTION_DEFINE([LT_INIT], [disable-fast-install], [_LT_ENABLE_FAST_INSTALL([no])]) + +# Old names: +AU_DEFUN([AC_ENABLE_FAST_INSTALL], +[_LT_SET_OPTION([LT_INIT], m4_if([$1], [no], [disable-])[fast-install]) +AC_DIAGNOSE([obsolete], +[$0: Remove this warning and the call to _LT_SET_OPTION when you put +the `fast-install' option into LT_INIT's first parameter.]) +]) + +AU_DEFUN([AC_DISABLE_FAST_INSTALL], +[_LT_SET_OPTION([LT_INIT], [disable-fast-install]) +AC_DIAGNOSE([obsolete], +[$0: Remove this warning and the call to _LT_SET_OPTION when you put +the `disable-fast-install' option into LT_INIT's first parameter.]) +]) + +dnl aclocal-1.4 backwards compatibility: +dnl AC_DEFUN([AC_ENABLE_FAST_INSTALL], []) +dnl AC_DEFUN([AM_DISABLE_FAST_INSTALL], []) + + +# _LT_WITH_PIC([MODE]) +# -------------------- +# implement the --with-pic flag, and support the `pic-only' and `no-pic' +# LT_INIT options. +# MODE is either `yes' or `no'. If omitted, it defaults to `both'. +m4_define([_LT_WITH_PIC], +[AC_ARG_WITH([pic], + [AS_HELP_STRING([--with-pic@<:@=PKGS@:>@], + [try to use only PIC/non-PIC objects @<:@default=use both@:>@])], + [lt_p=${PACKAGE-default} + case $withval in + yes|no) pic_mode=$withval ;; + *) + pic_mode=default + # Look at the argument we got. We use all the common list separators. + lt_save_ifs="$IFS"; IFS="${IFS}$PATH_SEPARATOR," + for lt_pkg in $withval; do + IFS="$lt_save_ifs" + if test "X$lt_pkg" = "X$lt_p"; then + pic_mode=yes + fi + done + IFS="$lt_save_ifs" + ;; + esac], + [pic_mode=default]) + +test -z "$pic_mode" && pic_mode=m4_default([$1], [default]) + +_LT_DECL([], [pic_mode], [0], [What type of objects to build])dnl +])# _LT_WITH_PIC + +LT_OPTION_DEFINE([LT_INIT], [pic-only], [_LT_WITH_PIC([yes])]) +LT_OPTION_DEFINE([LT_INIT], [no-pic], [_LT_WITH_PIC([no])]) + +# Old name: +AU_DEFUN([AC_LIBTOOL_PICMODE], +[_LT_SET_OPTION([LT_INIT], [pic-only]) +AC_DIAGNOSE([obsolete], +[$0: Remove this warning and the call to _LT_SET_OPTION when you +put the `pic-only' option into LT_INIT's first parameter.]) +]) + +dnl aclocal-1.4 backwards compatibility: +dnl AC_DEFUN([AC_LIBTOOL_PICMODE], []) + + +m4_define([_LTDL_MODE], []) +LT_OPTION_DEFINE([LTDL_INIT], [nonrecursive], + [m4_define([_LTDL_MODE], [nonrecursive])]) +LT_OPTION_DEFINE([LTDL_INIT], [recursive], + [m4_define([_LTDL_MODE], [recursive])]) +LT_OPTION_DEFINE([LTDL_INIT], [subproject], + [m4_define([_LTDL_MODE], [subproject])]) + +m4_define([_LTDL_TYPE], []) +LT_OPTION_DEFINE([LTDL_INIT], [installable], + [m4_define([_LTDL_TYPE], [installable])]) +LT_OPTION_DEFINE([LTDL_INIT], [convenience], + [m4_define([_LTDL_TYPE], [convenience])]) + +# ltsugar.m4 -- libtool m4 base layer. -*-Autoconf-*- +# +# Copyright (C) 2004, 2005, 2007, 2008 Free Software Foundation, Inc. +# Written by Gary V. Vaughan, 2004 +# +# This file is free software; the Free Software Foundation gives +# unlimited permission to copy and/or distribute it, with or without +# modifications, as long as this notice is preserved. + +# serial 6 ltsugar.m4 + +# This is to help aclocal find these macros, as it can't see m4_define. +AC_DEFUN([LTSUGAR_VERSION], [m4_if([0.1])]) + + +# lt_join(SEP, ARG1, [ARG2...]) +# ----------------------------- +# Produce ARG1SEPARG2...SEPARGn, omitting [] arguments and their +# associated separator. +# Needed until we can rely on m4_join from Autoconf 2.62, since all earlier +# versions in m4sugar had bugs. +m4_define([lt_join], +[m4_if([$#], [1], [], + [$#], [2], [[$2]], + [m4_if([$2], [], [], [[$2]_])$0([$1], m4_shift(m4_shift($@)))])]) +m4_define([_lt_join], +[m4_if([$#$2], [2], [], + [m4_if([$2], [], [], [[$1$2]])$0([$1], m4_shift(m4_shift($@)))])]) + + +# lt_car(LIST) +# lt_cdr(LIST) +# ------------ +# Manipulate m4 lists. +# These macros are necessary as long as will still need to support +# Autoconf-2.59 which quotes differently. +m4_define([lt_car], [[$1]]) +m4_define([lt_cdr], +[m4_if([$#], 0, [m4_fatal([$0: cannot be called without arguments])], + [$#], 1, [], + [m4_dquote(m4_shift($@))])]) +m4_define([lt_unquote], $1) + + +# lt_append(MACRO-NAME, STRING, [SEPARATOR]) +# ------------------------------------------ +# Redefine MACRO-NAME to hold its former content plus `SEPARATOR'`STRING'. +# Note that neither SEPARATOR nor STRING are expanded; they are appended +# to MACRO-NAME as is (leaving the expansion for when MACRO-NAME is invoked). +# No SEPARATOR is output if MACRO-NAME was previously undefined (different +# than defined and empty). +# +# This macro is needed until we can rely on Autoconf 2.62, since earlier +# versions of m4sugar mistakenly expanded SEPARATOR but not STRING. +m4_define([lt_append], +[m4_define([$1], + m4_ifdef([$1], [m4_defn([$1])[$3]])[$2])]) + + + +# lt_combine(SEP, PREFIX-LIST, INFIX, SUFFIX1, [SUFFIX2...]) +# ---------------------------------------------------------- +# Produce a SEP delimited list of all paired combinations of elements of +# PREFIX-LIST with SUFFIX1 through SUFFIXn. Each element of the list +# has the form PREFIXmINFIXSUFFIXn. +# Needed until we can rely on m4_combine added in Autoconf 2.62. +m4_define([lt_combine], +[m4_if(m4_eval([$# > 3]), [1], + [m4_pushdef([_Lt_sep], [m4_define([_Lt_sep], m4_defn([lt_car]))])]]dnl +[[m4_foreach([_Lt_prefix], [$2], + [m4_foreach([_Lt_suffix], + ]m4_dquote(m4_dquote(m4_shift(m4_shift(m4_shift($@)))))[, + [_Lt_sep([$1])[]m4_defn([_Lt_prefix])[$3]m4_defn([_Lt_suffix])])])])]) + + +# lt_if_append_uniq(MACRO-NAME, VARNAME, [SEPARATOR], [UNIQ], [NOT-UNIQ]) +# ----------------------------------------------------------------------- +# Iff MACRO-NAME does not yet contain VARNAME, then append it (delimited +# by SEPARATOR if supplied) and expand UNIQ, else NOT-UNIQ. +m4_define([lt_if_append_uniq], +[m4_ifdef([$1], + [m4_if(m4_index([$3]m4_defn([$1])[$3], [$3$2$3]), [-1], + [lt_append([$1], [$2], [$3])$4], + [$5])], + [lt_append([$1], [$2], [$3])$4])]) + + +# lt_dict_add(DICT, KEY, VALUE) +# ----------------------------- +m4_define([lt_dict_add], +[m4_define([$1($2)], [$3])]) + + +# lt_dict_add_subkey(DICT, KEY, SUBKEY, VALUE) +# -------------------------------------------- +m4_define([lt_dict_add_subkey], +[m4_define([$1($2:$3)], [$4])]) + + +# lt_dict_fetch(DICT, KEY, [SUBKEY]) +# ---------------------------------- +m4_define([lt_dict_fetch], +[m4_ifval([$3], + m4_ifdef([$1($2:$3)], [m4_defn([$1($2:$3)])]), + m4_ifdef([$1($2)], [m4_defn([$1($2)])]))]) + + +# lt_if_dict_fetch(DICT, KEY, [SUBKEY], VALUE, IF-TRUE, [IF-FALSE]) +# ----------------------------------------------------------------- +m4_define([lt_if_dict_fetch], +[m4_if(lt_dict_fetch([$1], [$2], [$3]), [$4], + [$5], + [$6])]) + + +# lt_dict_filter(DICT, [SUBKEY], VALUE, [SEPARATOR], KEY, [...]) +# -------------------------------------------------------------- +m4_define([lt_dict_filter], +[m4_if([$5], [], [], + [lt_join(m4_quote(m4_default([$4], [[, ]])), + lt_unquote(m4_split(m4_normalize(m4_foreach(_Lt_key, lt_car([m4_shiftn(4, $@)]), + [lt_if_dict_fetch([$1], _Lt_key, [$2], [$3], [_Lt_key ])])))))])[]dnl +]) + +# ltversion.m4 -- version numbers -*- Autoconf -*- +# +# Copyright (C) 2004 Free Software Foundation, Inc. +# Written by Scott James Remnant, 2004 +# +# This file is free software; the Free Software Foundation gives +# unlimited permission to copy and/or distribute it, with or without +# modifications, as long as this notice is preserved. + +# @configure_input@ + +# serial 3337 ltversion.m4 +# This file is part of GNU Libtool + +m4_define([LT_PACKAGE_VERSION], [2.4.2]) +m4_define([LT_PACKAGE_REVISION], [1.3337]) + +AC_DEFUN([LTVERSION_VERSION], +[macro_version='2.4.2' +macro_revision='1.3337' +_LT_DECL(, macro_version, 0, [Which release of libtool.m4 was used?]) +_LT_DECL(, macro_revision, 0) +]) + +# lt~obsolete.m4 -- aclocal satisfying obsolete definitions. -*-Autoconf-*- +# +# Copyright (C) 2004, 2005, 2007, 2009 Free Software Foundation, Inc. +# Written by Scott James Remnant, 2004. +# +# This file is free software; the Free Software Foundation gives +# unlimited permission to copy and/or distribute it, with or without +# modifications, as long as this notice is preserved. + +# serial 5 lt~obsolete.m4 + +# These exist entirely to fool aclocal when bootstrapping libtool. +# +# In the past libtool.m4 has provided macros via AC_DEFUN (or AU_DEFUN) +# which have later been changed to m4_define as they aren't part of the +# exported API, or moved to Autoconf or Automake where they belong. +# +# The trouble is, aclocal is a bit thick. 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We just wanted to have am__tar + # and am__untar set. + test -n "${am_cv_prog_tar_$1}" && break + + # tar/untar a dummy directory, and stop if the command works + rm -rf conftest.dir + mkdir conftest.dir + echo GrepMe > conftest.dir/file + AM_RUN_LOG([tardir=conftest.dir && eval $am__tar_ >conftest.tar]) + rm -rf conftest.dir + if test -s conftest.tar; then + AM_RUN_LOG([$am__untar /dev/null 2>&1 && break + fi +done +rm -rf conftest.dir + +AC_CACHE_VAL([am_cv_prog_tar_$1], [am_cv_prog_tar_$1=$_am_tool]) +AC_MSG_RESULT([$am_cv_prog_tar_$1])]) +AC_SUBST([am__tar]) +AC_SUBST([am__untar]) +]) # _AM_PROG_TAR + diff --git a/jpeg/afiles b/jpeg/afiles new file mode 100644 index 0000000..a0e6ed4 --- /dev/null +++ b/jpeg/afiles @@ -0,0 +1,185 @@ +afiles +Jamfile +Makefile.am +Makefile.in +README +aclocal.m4 +ansi2knr.1 +ansi2knr.c +cderror.h +cdjpeg.c +cdjpeg.h +change.log +cjpeg.1 +cjpeg.c +ckconfig.c +coderules.txt +config.guess +config.sub +configure +configure.ac +depcomp +djpeg.1 +djpeg.c +example.c +filelist.txt +install-sh +install.txt +jaricom.c +jcapimin.c +jcapistd.c +jcarith.c +jccoefct.c +jccolor.c +jcdctmgr.c +jchuff.c +jcinit.c +jcmainct.c +jcmarker.c +jcmaster.c +jcomapi.c +jconfig.bcc +jconfig.cfg +jconfig.dj +jconfig.mac +jconfig.manx +jconfig.mc6 +jconfig.sas +jconfig.st +jconfig.txt +jconfig.vc +jconfig.vms +jconfig.wat +jcparam.c +jcprepct.c +jcsample.c +jctrans.c +jdapimin.c +jdapistd.c +jdarith.c +jdatadst.c +jdatasrc.c +jdcoefct.c +jdcolor.c +jdct.h +jddctmgr.c +jdhuff.c +jdinput.c +jdmainct.c +jdmarker.c +jdmaster.c +jdmerge.c +jdosaobj.txt +jdpostct.c +jdsample.c +jdtrans.c +jerror.c +jerror.h +jfdctflt.c +jfdctfst.c +jfdctint.c +jidctflt.c +jidctfst.c +jidctint.c +jinclude.h +jmemansi.c +jmemdos.c +jmemdosa.asm +jmemmac.c +jmemmgr.c +jmemname.c +jmemnobs.c +jmemsys.h +jmorecfg.h +jpegint.h +jpeglib.h +jpegsr8d.zip +jpegtran.1 +jpegtran.c +jquant1.c +jquant2.c +jutils.c +jversion.h +libjpeg.map +libjpeg.txt +ltmain.sh +makcjpeg.st +makdjpeg.st +makeadsw.vc6 +makeasln.v10 +makecdep.vc6 +makecdsp.vc6 +makecfil.v10 +makecmak.vc6 +makecvcx.v10 +makeddep.vc6 +makeddsp.vc6 +makedfil.v10 +makedmak.vc6 +makedvcx.v10 +makefile.ansi +makefile.bcc +makefile.dj +makefile.manx +makefile.mc6 +makefile.mms +makefile.sas +makefile.unix +makefile.vc +makefile.vms +makefile.wat +makejdep.vc6 +makejdsp.vc6 +makejdsw.vc6 +makejfil.v10 +makejmak.vc6 +makejsln.v10 +makejvcx.v10 +makeproj.mac +makerdep.vc6 +makerdsp.vc6 +makerfil.v10 +makermak.vc6 +makervcx.v10 +maketdep.vc6 +maketdsp.vc6 +maketfil.v10 +maketmak.vc6 +maketvcx.v10 +makewdep.vc6 +makewdsp.vc6 +makewfil.v10 +makewmak.vc6 +makewvcx.v10 +makljpeg.st +maktjpeg.st +makvms.opt +missing +rdbmp.c +rdcolmap.c +rdgif.c +rdjpgcom.1 +rdjpgcom.c +rdppm.c +rdrle.c +rdswitch.c +rdtarga.c +readme.dos +structure.txt +testimg.bmp +testimg.jpg +testimg.ppm +testimgp.jpg +testorig.jpg +testprog.jpg +transupp.c +transupp.h +usage.txt +wizard.txt +wrbmp.c +wrgif.c +wrjpgcom.1 +wrjpgcom.c +wrppm.c +wrrle.c +wrtarga.c diff --git a/jpeg/ansi2knr.1 b/jpeg/ansi2knr.1 new file mode 100644 index 0000000..f9ee5a6 --- /dev/null +++ b/jpeg/ansi2knr.1 @@ -0,0 +1,36 @@ +.TH ANSI2KNR 1 "19 Jan 1996" +.SH NAME +ansi2knr \- convert ANSI C to Kernighan & Ritchie C +.SH SYNOPSIS +.I ansi2knr +[--varargs] input_file [output_file] +.SH DESCRIPTION +If no output_file is supplied, output goes to stdout. +.br +There are no error messages. +.sp +.I ansi2knr +recognizes function definitions by seeing a non-keyword identifier at the left +margin, followed by a left parenthesis, with a right parenthesis as the last +character on the line, and with a left brace as the first token on the +following line (ignoring possible intervening comments). It will recognize a +multi-line header provided that no intervening line ends with a left or right +brace or a semicolon. These algorithms ignore whitespace and comments, except +that the function name must be the first thing on the line. +.sp +The following constructs will confuse it: +.br + - Any other construct that starts at the left margin and follows the +above syntax (such as a macro or function call). +.br + - Some macros that tinker with the syntax of the function header. +.sp +The --varargs switch is obsolete, and is recognized only for +backwards compatibility. The present version of +.I ansi2knr +will always attempt to convert a ... argument to va_alist and va_dcl. +.SH AUTHOR +L. Peter Deutsch wrote the original ansi2knr and +continues to maintain the current version; most of the code in the current +version is his work. ansi2knr also includes contributions by Francois +Pinard and Jim Avera . diff --git a/jpeg/ansi2knr.c b/jpeg/ansi2knr.c new file mode 100644 index 0000000..e84c210 --- /dev/null +++ b/jpeg/ansi2knr.c @@ -0,0 +1,739 @@ +/* Copyright (C) 1989, 2000 Aladdin Enterprises. All rights reserved. */ + +/*$Id: ansi2knr.c,v 1.14 2003/09/06 05:36:56 eggert Exp $*/ +/* Convert ANSI C function definitions to K&R ("traditional C") syntax */ + +/* +ansi2knr is distributed in the hope that it will be useful, but WITHOUT ANY +WARRANTY. No author or distributor accepts responsibility to anyone for the +consequences of using it or for whether it serves any particular purpose or +works at all, unless he says so in writing. Refer to the GNU General Public +License (the "GPL") for full details. + +Everyone is granted permission to copy, modify and redistribute ansi2knr, +but only under the conditions described in the GPL. A copy of this license +is supposed to have been given to you along with ansi2knr so you can know +your rights and responsibilities. It should be in a file named COPYLEFT, +or, if there is no file named COPYLEFT, a file named COPYING. Among other +things, the copyright notice and this notice must be preserved on all +copies. + +We explicitly state here what we believe is already implied by the GPL: if +the ansi2knr program is distributed as a separate set of sources and a +separate executable file which are aggregated on a storage medium together +with another program, this in itself does not bring the other program under +the GPL, nor does the mere fact that such a program or the procedures for +constructing it invoke the ansi2knr executable bring any other part of the +program under the GPL. +*/ + +/* + * Usage: + ansi2knr [--filename FILENAME] [INPUT_FILE [OUTPUT_FILE]] + * --filename provides the file name for the #line directive in the output, + * overriding input_file (if present). + * If no input_file is supplied, input is read from stdin. + * If no output_file is supplied, output goes to stdout. + * There are no error messages. + * + * ansi2knr recognizes function definitions by seeing a non-keyword + * identifier at the left margin, followed by a left parenthesis, with a + * right parenthesis as the last character on the line, and with a left + * brace as the first token on the following line (ignoring possible + * intervening comments and/or preprocessor directives), except that a line + * consisting of only + * identifier1(identifier2) + * will not be considered a function definition unless identifier2 is + * the word "void", and a line consisting of + * identifier1(identifier2, <>) + * will not be considered a function definition. + * ansi2knr will recognize a multi-line header provided that no intervening + * line ends with a left or right brace or a semicolon. These algorithms + * ignore whitespace, comments, and preprocessor directives, except that + * the function name must be the first thing on the line. The following + * constructs will confuse it: + * - Any other construct that starts at the left margin and + * follows the above syntax (such as a macro or function call). + * - Some macros that tinker with the syntax of function headers. + */ + +/* + * The original and principal author of ansi2knr is L. Peter Deutsch + * . Other authors are noted in the change history + * that follows (in reverse chronological order): + + lpd 2000-04-12 backs out Eggert's changes because of bugs: + - concatlits didn't declare the type of its bufend argument; + - concatlits didn't recognize when it was inside a comment; + - scanstring could scan backward past the beginning of the string; when + - the check for \ + newline in scanstring was unnecessary. + + 2000-03-05 Paul Eggert + + Add support for concatenated string literals. + * ansi2knr.c (concatlits): New decl. + (main): Invoke concatlits to concatenate string literals. + (scanstring): Handle backslash-newline correctly. Work with + character constants. Fix bug when scanning backwards through + backslash-quote. Check for unterminated strings. + (convert1): Parse character constants, too. + (appendline, concatlits): New functions. + * ansi2knr.1: Document this. + + lpd 1999-08-17 added code to allow preprocessor directives + wherever comments are allowed + lpd 1999-04-12 added minor fixes from Pavel Roskin + for clean compilation with + gcc -W -Wall + lpd 1999-03-22 added hack to recognize lines consisting of + identifier1(identifier2, xxx) as *not* being procedures + lpd 1999-02-03 made indentation of preprocessor commands consistent + lpd 1999-01-28 fixed two bugs: a '/' in an argument list caused an + endless loop; quoted strings within an argument list + confused the parser + lpd 1999-01-24 added a check for write errors on the output, + suggested by Jim Meyering + lpd 1998-11-09 added further hack to recognize identifier(void) + as being a procedure + lpd 1998-10-23 added hack to recognize lines consisting of + identifier1(identifier2) as *not* being procedures + lpd 1997-12-08 made input_file optional; only closes input and/or + output file if not stdin or stdout respectively; prints + usage message on stderr rather than stdout; adds + --filename switch (changes suggested by + ) + lpd 1996-01-21 added code to cope with not HAVE_CONFIG_H and with + compilers that don't understand void, as suggested by + Tom Lane + lpd 1996-01-15 changed to require that the first non-comment token + on the line following a function header be a left brace, + to reduce sensitivity to macros, as suggested by Tom Lane + + lpd 1995-06-22 removed #ifndefs whose sole purpose was to define + undefined preprocessor symbols as 0; changed all #ifdefs + for configuration symbols to #ifs + lpd 1995-04-05 changed copyright notice to make it clear that + including ansi2knr in a program does not bring the entire + program under the GPL + lpd 1994-12-18 added conditionals for systems where ctype macros + don't handle 8-bit characters properly, suggested by + Francois Pinard ; + removed --varargs switch (this is now the default) + lpd 1994-10-10 removed CONFIG_BROKETS conditional + lpd 1994-07-16 added some conditionals to help GNU `configure', + suggested by Francois Pinard ; + properly erase prototype args in function parameters, + contributed by Jim Avera ; + correct error in writeblanks (it shouldn't erase EOLs) + lpd 1989-xx-xx original version + */ + +/* Most of the conditionals here are to make ansi2knr work with */ +/* or without the GNU configure machinery. */ + +#if HAVE_CONFIG_H +# include +#endif + +#include +#include + +#if HAVE_CONFIG_H + +/* + For properly autoconfiguring ansi2knr, use AC_CONFIG_HEADER(config.h). + This will define HAVE_CONFIG_H and so, activate the following lines. + */ + +# if STDC_HEADERS || HAVE_STRING_H +# include +# else +# include +# endif + +#else /* not HAVE_CONFIG_H */ + +/* Otherwise do it the hard way */ + +# ifdef BSD +# include +# else +# ifdef VMS + extern int strlen(), strncmp(); +# else +# include +# endif +# endif + +#endif /* not HAVE_CONFIG_H */ + +#if STDC_HEADERS +# include +#else +/* + malloc and free should be declared in stdlib.h, + but if you've got a K&R compiler, they probably aren't. + */ +# ifdef MSDOS +# include +# else +# ifdef VMS + extern char *malloc(); + extern void free(); +# else + extern char *malloc(); + extern int free(); +# endif +# endif + +#endif + +/* Define NULL (for *very* old compilers). */ +#ifndef NULL +# define NULL (0) +#endif + +/* + * The ctype macros don't always handle 8-bit characters correctly. + * Compensate for this here. + */ +#ifdef isascii +# undef HAVE_ISASCII /* just in case */ +# define HAVE_ISASCII 1 +#else +#endif +#if STDC_HEADERS || !HAVE_ISASCII +# define is_ascii(c) 1 +#else +# define is_ascii(c) isascii(c) +#endif + +#define is_space(c) (is_ascii(c) && isspace(c)) +#define is_alpha(c) (is_ascii(c) && isalpha(c)) +#define is_alnum(c) (is_ascii(c) && isalnum(c)) + +/* Scanning macros */ +#define isidchar(ch) (is_alnum(ch) || (ch) == '_') +#define isidfirstchar(ch) (is_alpha(ch) || (ch) == '_') + +/* Forward references */ +char *ppdirforward(); +char *ppdirbackward(); +char *skipspace(); +char *scanstring(); +int writeblanks(); +int test1(); +int convert1(); + +/* The main program */ +int +main(argc, argv) + int argc; + char *argv[]; +{ FILE *in = stdin; + FILE *out = stdout; + char *filename = 0; + char *program_name = argv[0]; + char *output_name = 0; +#define bufsize 5000 /* arbitrary size */ + char *buf; + char *line; + char *more; + char *usage = + "Usage: ansi2knr [--filename FILENAME] [INPUT_FILE [OUTPUT_FILE]]\n"; + /* + * In previous versions, ansi2knr recognized a --varargs switch. + * If this switch was supplied, ansi2knr would attempt to convert + * a ... argument to va_alist and va_dcl; if this switch was not + * supplied, ansi2knr would simply drop any such arguments. + * Now, ansi2knr always does this conversion, and we only + * check for this switch for backward compatibility. + */ + int convert_varargs = 1; + int output_error; + + while ( argc > 1 && argv[1][0] == '-' ) { + if ( !strcmp(argv[1], "--varargs") ) { + convert_varargs = 1; + argc--; + argv++; + continue; + } + if ( !strcmp(argv[1], "--filename") && argc > 2 ) { + filename = argv[2]; + argc -= 2; + argv += 2; + continue; + } + fprintf(stderr, "%s: Unrecognized switch: %s\n", program_name, + argv[1]); + fprintf(stderr, usage); + exit(1); + } + switch ( argc ) + { + default: + fprintf(stderr, usage); + exit(0); + case 3: + output_name = argv[2]; + out = fopen(output_name, "w"); + if ( out == NULL ) { + fprintf(stderr, "%s: Cannot open output file %s\n", + program_name, output_name); + exit(1); + } + /* falls through */ + case 2: + in = fopen(argv[1], "r"); + if ( in == NULL ) { + fprintf(stderr, "%s: Cannot open input file %s\n", + program_name, argv[1]); + exit(1); + } + if ( filename == 0 ) + filename = argv[1]; + /* falls through */ + case 1: + break; + } + if ( filename ) + fprintf(out, "#line 1 \"%s\"\n", filename); + buf = malloc(bufsize); + if ( buf == NULL ) + { + fprintf(stderr, "Unable to allocate read buffer!\n"); + exit(1); + } + line = buf; + while ( fgets(line, (unsigned)(buf + bufsize - line), in) != NULL ) + { +test: line += strlen(line); + switch ( test1(buf) ) + { + case 2: /* a function header */ + convert1(buf, out, 1, convert_varargs); + break; + case 1: /* a function */ + /* Check for a { at the start of the next line. */ + more = ++line; +f: if ( line >= buf + (bufsize - 1) ) /* overflow check */ + goto wl; + if ( fgets(line, (unsigned)(buf + bufsize - line), in) == NULL ) + goto wl; + switch ( *skipspace(ppdirforward(more), 1) ) + { + case '{': + /* Definitely a function header. */ + convert1(buf, out, 0, convert_varargs); + fputs(more, out); + break; + case 0: + /* The next line was blank or a comment: */ + /* keep scanning for a non-comment. */ + line += strlen(line); + goto f; + default: + /* buf isn't a function header, but */ + /* more might be. */ + fputs(buf, out); + strcpy(buf, more); + line = buf; + goto test; + } + break; + case -1: /* maybe the start of a function */ + if ( line != buf + (bufsize - 1) ) /* overflow check */ + continue; + /* falls through */ + default: /* not a function */ +wl: fputs(buf, out); + break; + } + line = buf; + } + if ( line != buf ) + fputs(buf, out); + free(buf); + if ( output_name ) { + output_error = ferror(out); + output_error |= fclose(out); + } else { /* out == stdout */ + fflush(out); + output_error = ferror(out); + } + if ( output_error ) { + fprintf(stderr, "%s: error writing to %s\n", program_name, + (output_name ? output_name : "stdout")); + exit(1); + } + if ( in != stdin ) + fclose(in); + return 0; +} + +/* + * Skip forward or backward over one or more preprocessor directives. + */ +char * +ppdirforward(p) + char *p; +{ + for (; *p == '#'; ++p) { + for (; *p != '\r' && *p != '\n'; ++p) + if (*p == 0) + return p; + if (*p == '\r' && p[1] == '\n') + ++p; + } + return p; +} +char * +ppdirbackward(p, limit) + char *p; + char *limit; +{ + char *np = p; + + for (;; p = --np) { + if (*np == '\n' && np[-1] == '\r') + --np; + for (; np > limit && np[-1] != '\r' && np[-1] != '\n'; --np) + if (np[-1] == 0) + return np; + if (*np != '#') + return p; + } +} + +/* + * Skip over whitespace, comments, and preprocessor directives, + * in either direction. + */ +char * +skipspace(p, dir) + char *p; + int dir; /* 1 for forward, -1 for backward */ +{ + for ( ; ; ) { + while ( is_space(*p) ) + p += dir; + if ( !(*p == '/' && p[dir] == '*') ) + break; + p += dir; p += dir; + while ( !(*p == '*' && p[dir] == '/') ) { + if ( *p == 0 ) + return p; /* multi-line comment?? */ + p += dir; + } + p += dir; p += dir; + } + return p; +} + +/* Scan over a quoted string, in either direction. */ +char * +scanstring(p, dir) + char *p; + int dir; +{ + for (p += dir; ; p += dir) + if (*p == '"' && p[-dir] != '\\') + return p + dir; +} + +/* + * Write blanks over part of a string. + * Don't overwrite end-of-line characters. + */ +int +writeblanks(start, end) + char *start; + char *end; +{ char *p; + for ( p = start; p < end; p++ ) + if ( *p != '\r' && *p != '\n' ) + *p = ' '; + return 0; +} + +/* + * Test whether the string in buf is a function definition. + * The string may contain and/or end with a newline. + * Return as follows: + * 0 - definitely not a function definition; + * 1 - definitely a function definition; + * 2 - definitely a function prototype (NOT USED); + * -1 - may be the beginning of a function definition, + * append another line and look again. + * The reason we don't attempt to convert function prototypes is that + * Ghostscript's declaration-generating macros look too much like + * prototypes, and confuse the algorithms. + */ +int +test1(buf) + char *buf; +{ char *p = buf; + char *bend; + char *endfn; + int contin; + + if ( !isidfirstchar(*p) ) + return 0; /* no name at left margin */ + bend = skipspace(ppdirbackward(buf + strlen(buf) - 1, buf), -1); + switch ( *bend ) + { + case ';': contin = 0 /*2*/; break; + case ')': contin = 1; break; + case '{': return 0; /* not a function */ + case '}': return 0; /* not a function */ + default: contin = -1; + } + while ( isidchar(*p) ) + p++; + endfn = p; + p = skipspace(p, 1); + if ( *p++ != '(' ) + return 0; /* not a function */ + p = skipspace(p, 1); + if ( *p == ')' ) + return 0; /* no parameters */ + /* Check that the apparent function name isn't a keyword. */ + /* We only need to check for keywords that could be followed */ + /* by a left parenthesis (which, unfortunately, is most of them). */ + { static char *words[] = + { "asm", "auto", "case", "char", "const", "double", + "extern", "float", "for", "if", "int", "long", + "register", "return", "short", "signed", "sizeof", + "static", "switch", "typedef", "unsigned", + "void", "volatile", "while", 0 + }; + char **key = words; + char *kp; + unsigned len = endfn - buf; + + while ( (kp = *key) != 0 ) + { if ( strlen(kp) == len && !strncmp(kp, buf, len) ) + return 0; /* name is a keyword */ + key++; + } + } + { + char *id = p; + int len; + /* + * Check for identifier1(identifier2) and not + * identifier1(void), or identifier1(identifier2, xxxx). + */ + + while ( isidchar(*p) ) + p++; + len = p - id; + p = skipspace(p, 1); + if (*p == ',' || + (*p == ')' && (len != 4 || strncmp(id, "void", 4))) + ) + return 0; /* not a function */ + } + /* + * If the last significant character was a ), we need to count + * parentheses, because it might be part of a formal parameter + * that is a procedure. + */ + if (contin > 0) { + int level = 0; + + for (p = skipspace(buf, 1); *p; p = skipspace(p + 1, 1)) + level += (*p == '(' ? 1 : *p == ')' ? -1 : 0); + if (level > 0) + contin = -1; + } + return contin; +} + +/* Convert a recognized function definition or header to K&R syntax. */ +int +convert1(buf, out, header, convert_varargs) + char *buf; + FILE *out; + int header; /* Boolean */ + int convert_varargs; /* Boolean */ +{ char *endfn; + char *p; + /* + * The breaks table contains pointers to the beginning and end + * of each argument. + */ + char **breaks; + unsigned num_breaks = 2; /* for testing */ + char **btop; + char **bp; + char **ap; + char *vararg = 0; + + /* Pre-ANSI implementations don't agree on whether strchr */ + /* is called strchr or index, so we open-code it here. */ + for ( endfn = buf; *(endfn++) != '('; ) + ; +top: p = endfn; + breaks = (char **)malloc(sizeof(char *) * num_breaks * 2); + if ( breaks == NULL ) + { /* Couldn't allocate break table, give up */ + fprintf(stderr, "Unable to allocate break table!\n"); + fputs(buf, out); + return -1; + } + btop = breaks + num_breaks * 2 - 2; + bp = breaks; + /* Parse the argument list */ + do + { int level = 0; + char *lp = NULL; + char *rp = NULL; + char *end = NULL; + + if ( bp >= btop ) + { /* Filled up break table. */ + /* Allocate a bigger one and start over. */ + free((char *)breaks); + num_breaks <<= 1; + goto top; + } + *bp++ = p; + /* Find the end of the argument */ + for ( ; end == NULL; p++ ) + { switch(*p) + { + case ',': + if ( !level ) end = p; + break; + case '(': + if ( !level ) lp = p; + level++; + break; + case ')': + if ( --level < 0 ) end = p; + else rp = p; + break; + case '/': + if (p[1] == '*') + p = skipspace(p, 1) - 1; + break; + case '"': + p = scanstring(p, 1) - 1; + break; + default: + ; + } + } + /* Erase any embedded prototype parameters. */ + if ( lp && rp ) + writeblanks(lp + 1, rp); + p--; /* back up over terminator */ + /* Find the name being declared. */ + /* This is complicated because of procedure and */ + /* array modifiers. */ + for ( ; ; ) + { p = skipspace(p - 1, -1); + switch ( *p ) + { + case ']': /* skip array dimension(s) */ + case ')': /* skip procedure args OR name */ + { int level = 1; + while ( level ) + switch ( *--p ) + { + case ']': case ')': + level++; + break; + case '[': case '(': + level--; + break; + case '/': + if (p > buf && p[-1] == '*') + p = skipspace(p, -1) + 1; + break; + case '"': + p = scanstring(p, -1) + 1; + break; + default: ; + } + } + if ( *p == '(' && *skipspace(p + 1, 1) == '*' ) + { /* We found the name being declared */ + while ( !isidfirstchar(*p) ) + p = skipspace(p, 1) + 1; + goto found; + } + break; + default: + goto found; + } + } +found: if ( *p == '.' && p[-1] == '.' && p[-2] == '.' ) + { if ( convert_varargs ) + { *bp++ = "va_alist"; + vararg = p-2; + } + else + { p++; + if ( bp == breaks + 1 ) /* sole argument */ + writeblanks(breaks[0], p); + else + writeblanks(bp[-1] - 1, p); + bp--; + } + } + else + { while ( isidchar(*p) ) p--; + *bp++ = p+1; + } + p = end; + } + while ( *p++ == ',' ); + *bp = p; + /* Make a special check for 'void' arglist */ + if ( bp == breaks+2 ) + { p = skipspace(breaks[0], 1); + if ( !strncmp(p, "void", 4) ) + { p = skipspace(p+4, 1); + if ( p == breaks[2] - 1 ) + { bp = breaks; /* yup, pretend arglist is empty */ + writeblanks(breaks[0], p + 1); + } + } + } + /* Put out the function name and left parenthesis. */ + p = buf; + while ( p != endfn ) putc(*p, out), p++; + /* Put out the declaration. */ + if ( header ) + { fputs(");", out); + for ( p = breaks[0]; *p; p++ ) + if ( *p == '\r' || *p == '\n' ) + putc(*p, out); + } + else + { for ( ap = breaks+1; ap < bp; ap += 2 ) + { p = *ap; + while ( isidchar(*p) ) + putc(*p, out), p++; + if ( ap < bp - 1 ) + fputs(", ", out); + } + fputs(") ", out); + /* Put out the argument declarations */ + for ( ap = breaks+2; ap <= bp; ap += 2 ) + (*ap)[-1] = ';'; + if ( vararg != 0 ) + { *vararg = 0; + fputs(breaks[0], out); /* any prior args */ + fputs("va_dcl", out); /* the final arg */ + fputs(bp[0], out); + } + else + fputs(breaks[0], out); + } + free((char *)breaks); + return 0; +} diff --git a/jpeg/cderror.h b/jpeg/cderror.h new file mode 100644 index 0000000..e19c475 --- /dev/null +++ b/jpeg/cderror.h @@ -0,0 +1,134 @@ +/* + * cderror.h + * + * Copyright (C) 1994-1997, Thomas G. Lane. + * Modified 2009 by Guido Vollbeding. + * This file is part of the Independent JPEG Group's software. + * For conditions of distribution and use, see the accompanying README file. + * + * This file defines the error and message codes for the cjpeg/djpeg + * applications. These strings are not needed as part of the JPEG library + * proper. + * Edit this file to add new codes, or to translate the message strings to + * some other language. + */ + +/* + * To define the enum list of message codes, include this file without + * defining macro JMESSAGE. To create a message string table, include it + * again with a suitable JMESSAGE definition (see jerror.c for an example). + */ +#ifndef JMESSAGE +#ifndef CDERROR_H +#define CDERROR_H +/* First time through, define the enum list */ +#define JMAKE_ENUM_LIST +#else +/* Repeated inclusions of this file are no-ops unless JMESSAGE is defined */ +#define JMESSAGE(code,string) +#endif /* CDERROR_H */ +#endif /* JMESSAGE */ + +#ifdef JMAKE_ENUM_LIST + +typedef enum { + +#define JMESSAGE(code,string) code , + +#endif /* JMAKE_ENUM_LIST */ + +JMESSAGE(JMSG_FIRSTADDONCODE=1000, NULL) /* Must be first entry! */ + +#ifdef BMP_SUPPORTED +JMESSAGE(JERR_BMP_BADCMAP, "Unsupported BMP colormap format") +JMESSAGE(JERR_BMP_BADDEPTH, "Only 8- and 24-bit BMP files are supported") +JMESSAGE(JERR_BMP_BADHEADER, "Invalid BMP file: bad header length") +JMESSAGE(JERR_BMP_BADPLANES, "Invalid BMP file: biPlanes not equal to 1") +JMESSAGE(JERR_BMP_COLORSPACE, "BMP output must be grayscale or RGB") +JMESSAGE(JERR_BMP_COMPRESSED, "Sorry, compressed BMPs not yet supported") +JMESSAGE(JERR_BMP_EMPTY, "Empty BMP image") +JMESSAGE(JERR_BMP_NOT, "Not a BMP file - does not start with BM") +JMESSAGE(JTRC_BMP, "%ux%u 24-bit BMP image") +JMESSAGE(JTRC_BMP_MAPPED, "%ux%u 8-bit colormapped BMP image") +JMESSAGE(JTRC_BMP_OS2, "%ux%u 24-bit OS2 BMP image") +JMESSAGE(JTRC_BMP_OS2_MAPPED, "%ux%u 8-bit colormapped OS2 BMP image") +#endif /* BMP_SUPPORTED */ + +#ifdef GIF_SUPPORTED +JMESSAGE(JERR_GIF_BUG, "GIF output got confused") +JMESSAGE(JERR_GIF_CODESIZE, "Bogus GIF codesize %d") +JMESSAGE(JERR_GIF_COLORSPACE, "GIF output must be grayscale or RGB") +JMESSAGE(JERR_GIF_IMAGENOTFOUND, "Too few images in GIF file") +JMESSAGE(JERR_GIF_NOT, "Not a GIF file") +JMESSAGE(JTRC_GIF, "%ux%ux%d GIF image") +JMESSAGE(JTRC_GIF_BADVERSION, + "Warning: unexpected GIF version number '%c%c%c'") +JMESSAGE(JTRC_GIF_EXTENSION, "Ignoring GIF extension block of type 0x%02x") +JMESSAGE(JTRC_GIF_NONSQUARE, "Caution: nonsquare pixels in input") +JMESSAGE(JWRN_GIF_BADDATA, "Corrupt data in GIF file") +JMESSAGE(JWRN_GIF_CHAR, "Bogus char 0x%02x in GIF file, ignoring") +JMESSAGE(JWRN_GIF_ENDCODE, "Premature end of GIF image") +JMESSAGE(JWRN_GIF_NOMOREDATA, "Ran out of GIF bits") +#endif /* GIF_SUPPORTED */ + +#ifdef PPM_SUPPORTED +JMESSAGE(JERR_PPM_COLORSPACE, "PPM output must be grayscale or RGB") +JMESSAGE(JERR_PPM_NONNUMERIC, "Nonnumeric data in PPM file") +JMESSAGE(JERR_PPM_NOT, "Not a PPM/PGM file") +JMESSAGE(JTRC_PGM, "%ux%u PGM image") +JMESSAGE(JTRC_PGM_TEXT, "%ux%u text PGM image") +JMESSAGE(JTRC_PPM, "%ux%u PPM image") +JMESSAGE(JTRC_PPM_TEXT, "%ux%u text PPM image") +#endif /* PPM_SUPPORTED */ + +#ifdef RLE_SUPPORTED +JMESSAGE(JERR_RLE_BADERROR, "Bogus error code from RLE library") +JMESSAGE(JERR_RLE_COLORSPACE, "RLE output must be grayscale or RGB") +JMESSAGE(JERR_RLE_DIMENSIONS, "Image dimensions (%ux%u) too large for RLE") +JMESSAGE(JERR_RLE_EMPTY, "Empty RLE file") +JMESSAGE(JERR_RLE_EOF, "Premature EOF in RLE header") +JMESSAGE(JERR_RLE_MEM, "Insufficient memory for RLE header") +JMESSAGE(JERR_RLE_NOT, "Not an RLE file") +JMESSAGE(JERR_RLE_TOOMANYCHANNELS, "Cannot handle %d output channels for RLE") +JMESSAGE(JERR_RLE_UNSUPPORTED, "Cannot handle this RLE setup") +JMESSAGE(JTRC_RLE, "%ux%u full-color RLE file") +JMESSAGE(JTRC_RLE_FULLMAP, "%ux%u full-color RLE file with map of length %d") +JMESSAGE(JTRC_RLE_GRAY, "%ux%u grayscale RLE file") +JMESSAGE(JTRC_RLE_MAPGRAY, "%ux%u grayscale RLE file with map of length %d") +JMESSAGE(JTRC_RLE_MAPPED, "%ux%u colormapped RLE file with map of length %d") +#endif /* RLE_SUPPORTED */ + +#ifdef TARGA_SUPPORTED +JMESSAGE(JERR_TGA_BADCMAP, "Unsupported Targa colormap format") +JMESSAGE(JERR_TGA_BADPARMS, "Invalid or unsupported Targa file") +JMESSAGE(JERR_TGA_COLORSPACE, "Targa output must be grayscale or RGB") +JMESSAGE(JTRC_TGA, "%ux%u RGB Targa image") +JMESSAGE(JTRC_TGA_GRAY, "%ux%u grayscale Targa image") +JMESSAGE(JTRC_TGA_MAPPED, "%ux%u colormapped Targa image") +#else +JMESSAGE(JERR_TGA_NOTCOMP, "Targa support was not compiled") +#endif /* TARGA_SUPPORTED */ + +JMESSAGE(JERR_BAD_CMAP_FILE, + "Color map file is invalid or of unsupported format") +JMESSAGE(JERR_TOO_MANY_COLORS, + "Output file format cannot handle %d colormap entries") +JMESSAGE(JERR_UNGETC_FAILED, "ungetc failed") +#ifdef TARGA_SUPPORTED +JMESSAGE(JERR_UNKNOWN_FORMAT, + "Unrecognized input file format --- perhaps you need -targa") +#else +JMESSAGE(JERR_UNKNOWN_FORMAT, "Unrecognized input file format") +#endif +JMESSAGE(JERR_UNSUPPORTED_FORMAT, "Unsupported output file format") + +#ifdef JMAKE_ENUM_LIST + + JMSG_LASTADDONCODE +} ADDON_MESSAGE_CODE; + +#undef JMAKE_ENUM_LIST +#endif /* JMAKE_ENUM_LIST */ + +/* Zap JMESSAGE macro so that future re-inclusions do nothing by default */ +#undef JMESSAGE diff --git a/jpeg/cdjpeg.c b/jpeg/cdjpeg.c new file mode 100644 index 0000000..b6250ff --- /dev/null +++ b/jpeg/cdjpeg.c @@ -0,0 +1,181 @@ +/* + * cdjpeg.c + * + * Copyright (C) 1991-1997, Thomas G. Lane. + * This file is part of the Independent JPEG Group's software. + * For conditions of distribution and use, see the accompanying README file. + * + * This file contains common support routines used by the IJG application + * programs (cjpeg, djpeg, jpegtran). + */ + +#include "cdjpeg.h" /* Common decls for cjpeg/djpeg applications */ +#include /* to declare isupper(), tolower() */ +#ifdef NEED_SIGNAL_CATCHER +#include /* to declare signal() */ +#endif +#ifdef USE_SETMODE +#include /* to declare setmode()'s parameter macros */ +/* If you have setmode() but not , just delete this line: */ +#include /* to declare setmode() */ +#endif + + +/* + * Signal catcher to ensure that temporary files are removed before aborting. + * NB: for Amiga Manx C this is actually a global routine named _abort(); + * we put "#define signal_catcher _abort" in jconfig.h. Talk about bogus... + */ + +#ifdef NEED_SIGNAL_CATCHER + +static j_common_ptr sig_cinfo; + +void /* must be global for Manx C */ +signal_catcher (int signum) +{ + if (sig_cinfo != NULL) { + if (sig_cinfo->err != NULL) /* turn off trace output */ + sig_cinfo->err->trace_level = 0; + jpeg_destroy(sig_cinfo); /* clean up memory allocation & temp files */ + } + exit(EXIT_FAILURE); +} + + +GLOBAL(void) +enable_signal_catcher (j_common_ptr cinfo) +{ + sig_cinfo = cinfo; +#ifdef SIGINT /* not all systems have SIGINT */ + signal(SIGINT, signal_catcher); +#endif +#ifdef SIGTERM /* not all systems have SIGTERM */ + signal(SIGTERM, signal_catcher); +#endif +} + +#endif + + +/* + * Optional progress monitor: display a percent-done figure on stderr. + */ + +#ifdef PROGRESS_REPORT + +METHODDEF(void) +progress_monitor (j_common_ptr cinfo) +{ + cd_progress_ptr prog = (cd_progress_ptr) cinfo->progress; + int total_passes = prog->pub.total_passes + prog->total_extra_passes; + int percent_done = (int) (prog->pub.pass_counter*100L/prog->pub.pass_limit); + + if (percent_done != prog->percent_done) { + prog->percent_done = percent_done; + if (total_passes > 1) { + fprintf(stderr, "\rPass %d/%d: %3d%% ", + prog->pub.completed_passes + prog->completed_extra_passes + 1, + total_passes, percent_done); + } else { + fprintf(stderr, "\r %3d%% ", percent_done); + } + fflush(stderr); + } +} + + +GLOBAL(void) +start_progress_monitor (j_common_ptr cinfo, cd_progress_ptr progress) +{ + /* Enable progress display, unless trace output is on */ + if (cinfo->err->trace_level == 0) { + progress->pub.progress_monitor = progress_monitor; + progress->completed_extra_passes = 0; + progress->total_extra_passes = 0; + progress->percent_done = -1; + cinfo->progress = &progress->pub; + } +} + + +GLOBAL(void) +end_progress_monitor (j_common_ptr cinfo) +{ + /* Clear away progress display */ + if (cinfo->err->trace_level == 0) { + fprintf(stderr, "\r \r"); + fflush(stderr); + } +} + +#endif + + +/* + * Case-insensitive matching of possibly-abbreviated keyword switches. + * keyword is the constant keyword (must be lower case already), + * minchars is length of minimum legal abbreviation. + */ + +GLOBAL(boolean) +keymatch (char * arg, const char * keyword, int minchars) +{ + register int ca, ck; + register int nmatched = 0; + + while ((ca = *arg++) != '\0') { + if ((ck = *keyword++) == '\0') + return FALSE; /* arg longer than keyword, no good */ + if (isupper(ca)) /* force arg to lcase (assume ck is already) */ + ca = tolower(ca); + if (ca != ck) + return FALSE; /* no good */ + nmatched++; /* count matched characters */ + } + /* reached end of argument; fail if it's too short for unique abbrev */ + if (nmatched < minchars) + return FALSE; + return TRUE; /* A-OK */ +} + + +/* + * Routines to establish binary I/O mode for stdin and stdout. + * Non-Unix systems often require some hacking to get out of text mode. + */ + +GLOBAL(FILE *) +read_stdin (void) +{ + FILE * input_file = stdin; + +#ifdef USE_SETMODE /* need to hack file mode? */ + setmode(fileno(stdin), O_BINARY); +#endif +#ifdef USE_FDOPEN /* need to re-open in binary mode? */ + if ((input_file = fdopen(fileno(stdin), READ_BINARY)) == NULL) { + fprintf(stderr, "Cannot reopen stdin\n"); + exit(EXIT_FAILURE); + } +#endif + return input_file; +} + + +GLOBAL(FILE *) +write_stdout (void) +{ + FILE * output_file = stdout; + +#ifdef USE_SETMODE /* need to hack file mode? */ + setmode(fileno(stdout), O_BINARY); +#endif +#ifdef USE_FDOPEN /* need to re-open in binary mode? */ + if ((output_file = fdopen(fileno(stdout), WRITE_BINARY)) == NULL) { + fprintf(stderr, "Cannot reopen stdout\n"); + exit(EXIT_FAILURE); + } +#endif + return output_file; +} diff --git a/jpeg/cdjpeg.h b/jpeg/cdjpeg.h new file mode 100644 index 0000000..ed024ac --- /dev/null +++ b/jpeg/cdjpeg.h @@ -0,0 +1,187 @@ +/* + * cdjpeg.h + * + * Copyright (C) 1994-1997, Thomas G. Lane. + * This file is part of the Independent JPEG Group's software. + * For conditions of distribution and use, see the accompanying README file. + * + * This file contains common declarations for the sample applications + * cjpeg and djpeg. It is NOT used by the core JPEG library. + */ + +#define JPEG_CJPEG_DJPEG /* define proper options in jconfig.h */ +#define JPEG_INTERNAL_OPTIONS /* cjpeg.c,djpeg.c need to see xxx_SUPPORTED */ +#include "jinclude.h" +#include "jpeglib.h" +#include "jerror.h" /* get library error codes too */ +#include "cderror.h" /* get application-specific error codes */ + + +/* + * Object interface for cjpeg's source file decoding modules + */ + +typedef struct cjpeg_source_struct * cjpeg_source_ptr; + +struct cjpeg_source_struct { + JMETHOD(void, start_input, (j_compress_ptr cinfo, + cjpeg_source_ptr sinfo)); + JMETHOD(JDIMENSION, get_pixel_rows, (j_compress_ptr cinfo, + cjpeg_source_ptr sinfo)); + JMETHOD(void, finish_input, (j_compress_ptr cinfo, + cjpeg_source_ptr sinfo)); + + FILE *input_file; + + JSAMPARRAY buffer; + JDIMENSION buffer_height; +}; + + +/* + * Object interface for djpeg's output file encoding modules + */ + +typedef struct djpeg_dest_struct * djpeg_dest_ptr; + +struct djpeg_dest_struct { + /* start_output is called after jpeg_start_decompress finishes. + * The color map will be ready at this time, if one is needed. + */ + JMETHOD(void, start_output, (j_decompress_ptr cinfo, + djpeg_dest_ptr dinfo)); + /* Emit the specified number of pixel rows from the buffer. */ + JMETHOD(void, put_pixel_rows, (j_decompress_ptr cinfo, + djpeg_dest_ptr dinfo, + JDIMENSION rows_supplied)); + /* Finish up at the end of the image. */ + JMETHOD(void, finish_output, (j_decompress_ptr cinfo, + djpeg_dest_ptr dinfo)); + + /* Target file spec; filled in by djpeg.c after object is created. */ + FILE * output_file; + + /* Output pixel-row buffer. Created by module init or start_output. + * Width is cinfo->output_width * cinfo->output_components; + * height is buffer_height. + */ + JSAMPARRAY buffer; + JDIMENSION buffer_height; +}; + + +/* + * cjpeg/djpeg may need to perform extra passes to convert to or from + * the source/destination file format. The JPEG library does not know + * about these passes, but we'd like them to be counted by the progress + * monitor. We use an expanded progress monitor object to hold the + * additional pass count. + */ + +struct cdjpeg_progress_mgr { + struct jpeg_progress_mgr pub; /* fields known to JPEG library */ + int completed_extra_passes; /* extra passes completed */ + int total_extra_passes; /* total extra */ + /* last printed percentage stored here to avoid multiple printouts */ + int percent_done; +}; + +typedef struct cdjpeg_progress_mgr * cd_progress_ptr; + + +/* Short forms of external names for systems with brain-damaged linkers. */ + +#ifdef NEED_SHORT_EXTERNAL_NAMES +#define jinit_read_bmp jIRdBMP +#define jinit_write_bmp jIWrBMP +#define jinit_read_gif jIRdGIF +#define jinit_write_gif jIWrGIF +#define jinit_read_ppm jIRdPPM +#define jinit_write_ppm jIWrPPM +#define jinit_read_rle jIRdRLE +#define jinit_write_rle jIWrRLE +#define jinit_read_targa jIRdTarga +#define jinit_write_targa jIWrTarga +#define read_quant_tables RdQTables +#define read_scan_script RdScnScript +#define set_quality_ratings SetQRates +#define set_quant_slots SetQSlots +#define set_sample_factors SetSFacts +#define read_color_map RdCMap +#define enable_signal_catcher EnSigCatcher +#define start_progress_monitor StProgMon +#define end_progress_monitor EnProgMon +#define read_stdin RdStdin +#define write_stdout WrStdout +#endif /* NEED_SHORT_EXTERNAL_NAMES */ + +/* Module selection routines for I/O modules. */ + +EXTERN(cjpeg_source_ptr) jinit_read_bmp JPP((j_compress_ptr cinfo)); +EXTERN(djpeg_dest_ptr) jinit_write_bmp JPP((j_decompress_ptr cinfo, + boolean is_os2)); +EXTERN(cjpeg_source_ptr) jinit_read_gif JPP((j_compress_ptr cinfo)); +EXTERN(djpeg_dest_ptr) jinit_write_gif JPP((j_decompress_ptr cinfo)); +EXTERN(cjpeg_source_ptr) jinit_read_ppm JPP((j_compress_ptr cinfo)); +EXTERN(djpeg_dest_ptr) jinit_write_ppm JPP((j_decompress_ptr cinfo)); +EXTERN(cjpeg_source_ptr) jinit_read_rle JPP((j_compress_ptr cinfo)); +EXTERN(djpeg_dest_ptr) jinit_write_rle JPP((j_decompress_ptr cinfo)); +EXTERN(cjpeg_source_ptr) jinit_read_targa JPP((j_compress_ptr cinfo)); +EXTERN(djpeg_dest_ptr) jinit_write_targa JPP((j_decompress_ptr cinfo)); + +/* cjpeg support routines (in rdswitch.c) */ + +EXTERN(boolean) read_quant_tables JPP((j_compress_ptr cinfo, char * filename, + boolean force_baseline)); +EXTERN(boolean) read_scan_script JPP((j_compress_ptr cinfo, char * filename)); +EXTERN(boolean) set_quality_ratings JPP((j_compress_ptr cinfo, char *arg, + boolean force_baseline)); +EXTERN(boolean) set_quant_slots JPP((j_compress_ptr cinfo, char *arg)); +EXTERN(boolean) set_sample_factors JPP((j_compress_ptr cinfo, char *arg)); + +/* djpeg support routines (in rdcolmap.c) */ + +EXTERN(void) read_color_map JPP((j_decompress_ptr cinfo, FILE * infile)); + +/* common support routines (in cdjpeg.c) */ + +EXTERN(void) enable_signal_catcher JPP((j_common_ptr cinfo)); +EXTERN(void) start_progress_monitor JPP((j_common_ptr cinfo, + cd_progress_ptr progress)); +EXTERN(void) end_progress_monitor JPP((j_common_ptr cinfo)); +EXTERN(boolean) keymatch JPP((char * arg, const char * keyword, int minchars)); +EXTERN(FILE *) read_stdin JPP((void)); +EXTERN(FILE *) write_stdout JPP((void)); + +/* miscellaneous useful macros */ + +#ifdef DONT_USE_B_MODE /* define mode parameters for fopen() */ +#define READ_BINARY "r" +#define WRITE_BINARY "w" +#else +#ifdef VMS /* VMS is very nonstandard */ +#define READ_BINARY "rb", "ctx=stm" +#define WRITE_BINARY "wb", "ctx=stm" +#else /* standard ANSI-compliant case */ +#define READ_BINARY "rb" +#define WRITE_BINARY "wb" +#endif +#endif + +#ifndef EXIT_FAILURE /* define exit() codes if not provided */ +#define EXIT_FAILURE 1 +#endif +#ifndef EXIT_SUCCESS +#ifdef VMS +#define EXIT_SUCCESS 1 /* VMS is very nonstandard */ +#else +#define EXIT_SUCCESS 0 +#endif +#endif +#ifndef EXIT_WARNING +#ifdef VMS +#define EXIT_WARNING 1 /* VMS is very nonstandard */ +#else +#define EXIT_WARNING 2 +#endif +#endif diff --git a/jpeg/change.log b/jpeg/change.log new file mode 100644 index 0000000..729bca6 --- /dev/null +++ b/jpeg/change.log @@ -0,0 +1,346 @@ +CHANGE LOG for Independent JPEG Group's JPEG software + + +Version 8d 15-Jan-2012 +----------------------- + +Add cjpeg -rgb option to create RGB JPEG files. +Using this switch suppresses the conversion from RGB +colorspace input to the default YCbCr JPEG colorspace. +This feature allows true lossless JPEG coding of RGB color images. +The recommended command for this purpose is currently +cjpeg -rgb -block 1 -arithmetic. +SmartScale capable decoder (introduced with IJG JPEG 8) required. +Thank to Michael Koch for the initial suggestion. + +Add option to disable the region adjustment in the transupp crop code. +Thank to Jeffrey Friedl for the suggestion. + +Thank to Richard Jones and Edd Dawson for various minor corrections. + +Thank to Akim Demaille for configure.ac cleanup. + + +Version 8c 16-Jan-2011 +----------------------- + +Add option to compression library and cjpeg (-block N) to use +different DCT block size. +All N from 1 to 16 are possible. Default is 8 (baseline format). +Larger values produce higher compression, +smaller values produce higher quality. +SmartScale capable decoder (introduced with IJG JPEG 8) required. + + +Version 8b 16-May-2010 +----------------------- + +Repair problem in new memory source manager with corrupt JPEG data. +Thank to Ted Campbell and Samuel Chun for the report. + +Repair problem in Makefile.am test target. +Thank to anonymous user for the report. + +Support MinGW installation with automatic configure. +Thank to Volker Grabsch for the suggestion. + + +Version 8a 28-Feb-2010 +----------------------- + +Writing tables-only datastreams via jpeg_write_tables works again. + +Support 32-bit BMPs (RGB image with Alpha channel) for read in cjpeg. +Thank to Brett Blackham for the suggestion. + +Improve accuracy in floating point IDCT calculation. +Thank to Robert Hooke for the hint. + + +Version 8 10-Jan-2010 +---------------------- + +jpegtran now supports the same -scale option as djpeg for "lossless" resize. +An implementation of the JPEG SmartScale extension is required for this +feature. A (draft) specification of the JPEG SmartScale extension is +available as a contributed document at ITU and ISO. Revision 2 or later +of the document is required (latest document version is Revision 3). +The SmartScale extension will enable more features beside lossless resize +in future implementations, as described in the document (new compression +options). + +Add sanity check in BMP reader module to avoid cjpeg crash for empty input +image (thank to Isaev Ildar of ISP RAS, Moscow, RU for reporting this error). + +Add data source and destination managers for read from and write to +memory buffers. New API functions jpeg_mem_src and jpeg_mem_dest. +Thank to Roberto Boni from Italy for the suggestion. + + +Version 7 27-Jun-2009 +---------------------- + +New scaled DCTs implemented. +djpeg now supports scalings N/8 with all N from 1 to 16. +cjpeg now supports scalings 8/N with all N from 1 to 16. +Scaled DCTs with size larger than 8 are now also used for resolving the +common 2x2 chroma subsampling case without additional spatial resampling. +Separate spatial resampling for those kind of files is now only necessary +for N>8 scaling cases. +Furthermore, separate scaled DCT functions are provided for direct resolving +of the common asymmetric subsampling cases (2x1 and 1x2) without additional +spatial resampling. + +cjpeg -quality option has been extended for support of separate quality +settings for luminance and chrominance (or in general, for every provided +quantization table slot). +New API function jpeg_default_qtables() and q_scale_factor array in library. + +Added -nosmooth option to cjpeg, complementary to djpeg. +New variable "do_fancy_downsampling" in library, complement to fancy +upsampling. Fancy upsampling now uses direct DCT scaling with sizes +larger than 8. The old method is not reversible and has been removed. + +Support arithmetic entropy encoding and decoding. +Added files jaricom.c, jcarith.c, jdarith.c. + +Straighten the file structure: +Removed files jidctred.c, jcphuff.c, jchuff.h, jdphuff.c, jdhuff.h. + +jpegtran has a new "lossless" cropping feature. + +Implement -perfect option in jpegtran, new API function +jtransform_perfect_transform() in transupp. (DP 204_perfect.dpatch) + +Better error messages for jpegtran fopen failure. +(DP 203_jpegtran_errmsg.dpatch) + +Fix byte order issue with 16bit PPM/PGM files in rdppm.c/wrppm.c: +according to Netpbm, the de facto standard implementation of the PNM formats, +the most significant byte is first. (DP 203_rdppm.dpatch) + +Add -raw option to rdjpgcom not to mangle the output. +(DP 205_rdjpgcom_raw.dpatch) + +Make rdjpgcom locale aware. (DP 201_rdjpgcom_locale.dpatch) + +Add extern "C" to jpeglib.h. +This avoids the need to put extern "C" { ... } around #include "jpeglib.h" +in your C++ application. Defining the symbol DONT_USE_EXTERN_C in the +configuration prevents this. (DP 202_jpeglib.h_c++.dpatch) + + +Version 6b 27-Mar-1998 +----------------------- + +jpegtran has new features for lossless image transformations (rotation +and flipping) as well as "lossless" reduction to grayscale. + +jpegtran now copies comments by default; it has a -copy switch to enable +copying all APPn blocks as well, or to suppress comments. (Formerly it +always suppressed comments and APPn blocks.) jpegtran now also preserves +JFIF version and resolution information. + +New decompressor library feature: COM and APPn markers found in the input +file can be saved in memory for later use by the application. (Before, +you had to code this up yourself with a custom marker processor.) + +There is an unused field "void * client_data" now in compress and decompress +parameter structs; this may be useful in some applications. + +JFIF version number information is now saved by the decoder and accepted by +the encoder. jpegtran uses this to copy the source file's version number, +to ensure "jpegtran -copy all" won't create bogus files that contain JFXX +extensions but claim to be version 1.01. Applications that generate their +own JFXX extension markers also (finally) have a supported way to cause the +encoder to emit JFIF version number 1.02. + +djpeg's trace mode reports JFIF 1.02 thumbnail images as such, rather +than as unknown APP0 markers. + +In -verbose mode, djpeg and rdjpgcom will try to print the contents of +APP12 markers as text. Some digital cameras store useful text information +in APP12 markers. + +Handling of truncated data streams is more robust: blocks beyond the one in +which the error occurs will be output as uniform gray, or left unchanged +if decoding a progressive JPEG. The appearance no longer depends on the +Huffman tables being used. + +Huffman tables are checked for validity much more carefully than before. + +To avoid the Unisys LZW patent, djpeg's GIF output capability has been +changed to produce "uncompressed GIFs", and cjpeg's GIF input capability +has been removed altogether. We're not happy about it either, but there +seems to be no good alternative. + +The configure script now supports building libjpeg as a shared library +on many flavors of Unix (all the ones that GNU libtool knows how to +build shared libraries for). Use "./configure --enable-shared" to +try this out. + +New jconfig file and makefiles for Microsoft Visual C++ and Developer Studio. +Also, a jconfig file and a build script for Metrowerks CodeWarrior +on Apple Macintosh. makefile.dj has been updated for DJGPP v2, and there +are miscellaneous other minor improvements in the makefiles. + +jmemmac.c now knows how to create temporary files following Mac System 7 +conventions. + +djpeg's -map switch is now able to read raw-format PPM files reliably. + +cjpeg -progressive -restart no longer generates any unnecessary DRI markers. + +Multiple calls to jpeg_simple_progression for a single JPEG object +no longer leak memory. + + +Version 6a 7-Feb-96 +-------------------- + +Library initialization sequence modified to detect version mismatches +and struct field packing mismatches between library and calling application. +This change requires applications to be recompiled, but does not require +any application source code change. + +All routine declarations changed to the style "GLOBAL(type) name ...", +that is, GLOBAL, LOCAL, METHODDEF, EXTERN are now macros taking the +routine's return type as an argument. This makes it possible to add +Microsoft-style linkage keywords to all the routines by changing just +these macros. Note that any application code that was using these macros +will have to be changed. + +DCT coefficient quantization tables are now stored in normal array order +rather than zigzag order. Application code that calls jpeg_add_quant_table, +or otherwise manipulates quantization tables directly, will need to be +changed. If you need to make such code work with either older or newer +versions of the library, a test like "#if JPEG_LIB_VERSION >= 61" is +recommended. + +djpeg's trace capability now dumps DQT tables in natural order, not zigzag +order. This allows the trace output to be made into a "-qtables" file +more easily. + +New system-dependent memory manager module for use on Apple Macintosh. + +Fix bug in cjpeg's -smooth option: last one or two scanlines would be +duplicates of the prior line unless the image height mod 16 was 1 or 2. + +Repair minor problems in VMS, BCC, MC6 makefiles. + +New configure script based on latest GNU Autoconf. + +Correct the list of include files needed by MetroWerks C for ccommand(). + +Numerous small documentation updates. + + +Version 6 2-Aug-95 +------------------- + +Progressive JPEG support: library can read and write full progressive JPEG +files. A "buffered image" mode supports incremental decoding for on-the-fly +display of progressive images. Simply recompiling an existing IJG-v5-based +decoder with v6 should allow it to read progressive files, though of course +without any special progressive display. + +New "jpegtran" application performs lossless transcoding between different +JPEG formats; primarily, it can be used to convert baseline to progressive +JPEG and vice versa. In support of jpegtran, the library now allows lossless +reading and writing of JPEG files as DCT coefficient arrays. This ability +may be of use in other applications. + +Notes for programmers: +* We changed jpeg_start_decompress() to be able to suspend; this makes all +decoding modes available to suspending-input applications. However, +existing applications that use suspending input will need to be changed +to check the return value from jpeg_start_decompress(). You don't need to +do anything if you don't use a suspending data source. +* We changed the interface to the virtual array routines: access_virt_array +routines now take a count of the number of rows to access this time. The +last parameter to request_virt_array routines is now interpreted as the +maximum number of rows that may be accessed at once, but not necessarily +the height of every access. + + +Version 5b 15-Mar-95 +--------------------- + +Correct bugs with grayscale images having v_samp_factor > 1. + +jpeg_write_raw_data() now supports output suspension. + +Correct bugs in "configure" script for case of compiling in +a directory other than the one containing the source files. + +Repair bug in jquant1.c: sometimes didn't use as many colors as it could. + +Borland C makefile and jconfig file work under either MS-DOS or OS/2. + +Miscellaneous improvements to documentation. + + +Version 5a 7-Dec-94 +-------------------- + +Changed color conversion roundoff behavior so that grayscale values are +represented exactly. (This causes test image files to change.) + +Make ordered dither use 16x16 instead of 4x4 pattern for a small quality +improvement. + +New configure script based on latest GNU Autoconf. +Fix configure script to handle CFLAGS correctly. +Rename *.auto files to *.cfg, so that configure script still works if +file names have been truncated for DOS. + +Fix bug in rdbmp.c: didn't allow for extra data between header and image. + +Modify rdppm.c/wrppm.c to handle 2-byte raw PPM/PGM formats for 12-bit data. + +Fix several bugs in rdrle.c. + +NEED_SHORT_EXTERNAL_NAMES option was broken. + +Revise jerror.h/jerror.c for more flexibility in message table. + +Repair oversight in jmemname.c NO_MKTEMP case: file could be there +but unreadable. + + +Version 5 24-Sep-94 +-------------------- + +Version 5 represents a nearly complete redesign and rewrite of the IJG +software. Major user-visible changes include: + * Automatic configuration simplifies installation for most Unix systems. + * A range of speed vs. image quality tradeoffs are supported. + This includes resizing of an image during decompression: scaling down + by a factor of 1/2, 1/4, or 1/8 is handled very efficiently. + * New programs rdjpgcom and wrjpgcom allow insertion and extraction + of text comments in a JPEG file. + +The application programmer's interface to the library has changed completely. +Notable improvements include: + * We have eliminated the use of callback routines for handling the + uncompressed image data. The application now sees the library as a + set of routines that it calls to read or write image data on a + scanline-by-scanline basis. + * The application image data is represented in a conventional interleaved- + pixel format, rather than as a separate array for each color channel. + This can save a copying step in many programs. + * The handling of compressed data has been cleaned up: the application can + supply routines to source or sink the compressed data. It is possible to + suspend processing on source/sink buffer overrun, although this is not + supported in all operating modes. + * All static state has been eliminated from the library, so that multiple + instances of compression or decompression can be active concurrently. + * JPEG abbreviated datastream formats are supported, ie, quantization and + Huffman tables can be stored separately from the image data. + * And not only that, but the documentation of the library has improved + considerably! + + +The last widely used release before the version 5 rewrite was version 4A of +18-Feb-93. Change logs before that point have been discarded, since they +are not of much interest after the rewrite. diff --git a/jpeg/cjpeg.1 b/jpeg/cjpeg.1 new file mode 100644 index 0000000..c10f971 --- /dev/null +++ b/jpeg/cjpeg.1 @@ -0,0 +1,348 @@ +.TH CJPEG 1 "28 August 2011" +.SH NAME +cjpeg \- compress an image file to a JPEG file +.SH SYNOPSIS +.B cjpeg +[ +.I options +] +[ +.I filename +] +.LP +.SH DESCRIPTION +.LP +.B cjpeg +compresses the named image file, or the standard input if no file is +named, and produces a JPEG/JFIF file on the standard output. +The currently supported input file formats are: PPM (PBMPLUS color +format), PGM (PBMPLUS gray-scale format), BMP, Targa, and RLE (Utah Raster +Toolkit format). (RLE is supported only if the URT library is available.) +.SH OPTIONS +All switch names may be abbreviated; for example, +.B \-grayscale +may be written +.B \-gray +or +.BR \-gr . +Most of the "basic" switches can be abbreviated to as little as one letter. +Upper and lower case are equivalent (thus +.B \-BMP +is the same as +.BR \-bmp ). +British spellings are also accepted (e.g., +.BR \-greyscale ), +though for brevity these are not mentioned below. +.PP +The basic switches are: +.TP +.BI \-quality " N[,...]" +Scale quantization tables to adjust image quality. Quality is 0 (worst) to +100 (best); default is 75. (See below for more info.) +.TP +.B \-grayscale +Create monochrome JPEG file from color input. Be sure to use this switch when +compressing a grayscale BMP file, because +.B cjpeg +isn't bright enough to notice whether a BMP file uses only shades of gray. +By saying +.BR \-grayscale , +you'll get a smaller JPEG file that takes less time to process. +.TP +.B \-rgb +Create RGB JPEG file. +Using this switch suppresses the conversion from RGB +colorspace input to the default YCbCr JPEG colorspace. +Use this switch in combination with the +.BI \-block " N" +switch (see below) for lossless JPEG coding. +.TP +.B \-optimize +Perform optimization of entropy encoding parameters. Without this, default +encoding parameters are used. +.B \-optimize +usually makes the JPEG file a little smaller, but +.B cjpeg +runs somewhat slower and needs much more memory. Image quality and speed of +decompression are unaffected by +.BR \-optimize . +.TP +.B \-progressive +Create progressive JPEG file (see below). +.TP +.BI \-scale " M/N" +Scale the output image by a factor M/N. Currently supported scale factors are +M/N with all N from 1 to 16, where M is the destination DCT size, which is 8 +by default (see +.BI \-block " N" +switch below). +.TP +.B \-targa +Input file is Targa format. Targa files that contain an "identification" +field will not be automatically recognized by +.BR cjpeg ; +for such files you must specify +.B \-targa +to make +.B cjpeg +treat the input as Targa format. +For most Targa files, you won't need this switch. +.PP +The +.B \-quality +switch lets you trade off compressed file size against quality of the +reconstructed image: the higher the quality setting, the larger the JPEG file, +and the closer the output image will be to the original input. Normally you +want to use the lowest quality setting (smallest file) that decompresses into +something visually indistinguishable from the original image. For this +purpose the quality setting should be between 50 and 95; the default of 75 is +often about right. If you see defects at +.B \-quality +75, then go up 5 or 10 counts at a time until you are happy with the output +image. (The optimal setting will vary from one image to another.) +.PP +.B \-quality +100 will generate a quantization table of all 1's, minimizing loss in the +quantization step (but there is still information loss in subsampling, as well +as roundoff error). This setting is mainly of interest for experimental +purposes. Quality values above about 95 are +.B not +recommended for normal use; the compressed file size goes up dramatically for +hardly any gain in output image quality. +.PP +In the other direction, quality values below 50 will produce very small files +of low image quality. Settings around 5 to 10 might be useful in preparing an +index of a large image library, for example. Try +.B \-quality +2 (or so) for some amusing Cubist effects. (Note: quality +values below about 25 generate 2-byte quantization tables, which are +considered optional in the JPEG standard. +.B cjpeg +emits a warning message when you give such a quality value, because some +other JPEG programs may be unable to decode the resulting file. Use +.B \-baseline +if you need to ensure compatibility at low quality values.) +.PP +The +.B \-quality +option has been extended in IJG version 7 for support of separate quality +settings for luminance and chrominance (or in general, for every provided +quantization table slot). This feature is useful for high-quality +applications which cannot accept the damage of color data by coarse +subsampling settings. You can now easily reduce the color data amount more +smoothly with finer control without separate subsampling. The resulting file +is fully compliant with standard JPEG decoders. +Note that the +.B \-quality +ratings refer to the quantization table slots, and that the last value is +replicated if there are more q-table slots than parameters. The default +q-table slots are 0 for luminance and 1 for chrominance with default tables as +given in the JPEG standard. This is compatible with the old behaviour in case +that only one parameter is given, which is then used for both luminance and +chrominance (slots 0 and 1). More or custom quantization tables can be set +with +.B \-qtables +and assigned to components with +.B \-qslots +parameter (see the "wizard" switches below). +.B Caution: +You must explicitly add +.BI \-sample " 1x1" +for efficient separate color +quality selection, since the default value used by library is 2x2! +.PP +The +.B \-progressive +switch creates a "progressive JPEG" file. In this type of JPEG file, the data +is stored in multiple scans of increasing quality. If the file is being +transmitted over a slow communications link, the decoder can use the first +scan to display a low-quality image very quickly, and can then improve the +display with each subsequent scan. The final image is exactly equivalent to a +standard JPEG file of the same quality setting, and the total file size is +about the same --- often a little smaller. +.PP +Switches for advanced users: +.TP +.B \-arithmetic +Use arithmetic coding. +.B Caution: +arithmetic coded JPEG is not yet widely implemented, so many decoders will be +unable to view an arithmetic coded JPEG file at all. +.TP +.BI \-block " N" +Set DCT block size. All N from 1 to 16 are possible. +Default is 8 (baseline format). +Larger values produce higher compression, +smaller values produce higher quality +(exact DCT stage possible with 1 or 2; with the default quality of 75 and +default Luminance qtable the DCT+Quantization stage is lossless for N=1). +.B Caution: +An implementation of the JPEG SmartScale extension is required for this +feature. SmartScale enabled JPEG is not yet widely implemented, so many +decoders will be unable to view a SmartScale extended JPEG file at all. +.TP +.B \-dct int +Use integer DCT method (default). +.TP +.B \-dct fast +Use fast integer DCT (less accurate). +.TP +.B \-dct float +Use floating-point DCT method. +The float method is very slightly more accurate than the int method, but is +much slower unless your machine has very fast floating-point hardware. Also +note that results of the floating-point method may vary slightly across +machines, while the integer methods should give the same results everywhere. +The fast integer method is much less accurate than the other two. +.TP +.B \-nosmooth +Don't use high-quality downsampling. +.TP +.BI \-restart " N" +Emit a JPEG restart marker every N MCU rows, or every N MCU blocks if "B" is +attached to the number. +.B \-restart 0 +(the default) means no restart markers. +.TP +.BI \-smooth " N" +Smooth the input image to eliminate dithering noise. N, ranging from 1 to +100, indicates the strength of smoothing. 0 (the default) means no smoothing. +.TP +.BI \-maxmemory " N" +Set limit for amount of memory to use in processing large images. Value is +in thousands of bytes, or millions of bytes if "M" is attached to the +number. For example, +.B \-max 4m +selects 4000000 bytes. If more space is needed, temporary files will be used. +.TP +.BI \-outfile " name" +Send output image to the named file, not to standard output. +.TP +.B \-verbose +Enable debug printout. More +.BR \-v 's +give more output. Also, version information is printed at startup. +.TP +.B \-debug +Same as +.BR \-verbose . +.PP +The +.B \-restart +option inserts extra markers that allow a JPEG decoder to resynchronize after +a transmission error. Without restart markers, any damage to a compressed +file will usually ruin the image from the point of the error to the end of the +image; with restart markers, the damage is usually confined to the portion of +the image up to the next restart marker. Of course, the restart markers +occupy extra space. We recommend +.B \-restart 1 +for images that will be transmitted across unreliable networks such as Usenet. +.PP +The +.B \-smooth +option filters the input to eliminate fine-scale noise. This is often useful +when converting dithered images to JPEG: a moderate smoothing factor of 10 to +50 gets rid of dithering patterns in the input file, resulting in a smaller +JPEG file and a better-looking image. Too large a smoothing factor will +visibly blur the image, however. +.PP +Switches for wizards: +.TP +.B \-baseline +Force baseline-compatible quantization tables to be generated. This clamps +quantization values to 8 bits even at low quality settings. (This switch is +poorly named, since it does not ensure that the output is actually baseline +JPEG. For example, you can use +.B \-baseline +and +.B \-progressive +together.) +.TP +.BI \-qtables " file" +Use the quantization tables given in the specified text file. +.TP +.BI \-qslots " N[,...]" +Select which quantization table to use for each color component. +.TP +.BI \-sample " HxV[,...]" +Set JPEG sampling factors for each color component. +.TP +.BI \-scans " file" +Use the scan script given in the specified text file. +.PP +The "wizard" switches are intended for experimentation with JPEG. If you +don't know what you are doing, \fBdon't use them\fR. These switches are +documented further in the file wizard.txt. +.SH EXAMPLES +.LP +This example compresses the PPM file foo.ppm with a quality factor of +60 and saves the output as foo.jpg: +.IP +.B cjpeg \-quality +.I 60 foo.ppm +.B > +.I foo.jpg +.SH HINTS +Color GIF files are not the ideal input for JPEG; JPEG is really intended for +compressing full-color (24-bit) images. In particular, don't try to convert +cartoons, line drawings, and other images that have only a few distinct +colors. GIF works great on these, JPEG does not. If you want to convert a +GIF to JPEG, you should experiment with +.BR cjpeg 's +.B \-quality +and +.B \-smooth +options to get a satisfactory conversion. +.B \-smooth 10 +or so is often helpful. +.PP +Avoid running an image through a series of JPEG compression/decompression +cycles. Image quality loss will accumulate; after ten or so cycles the image +may be noticeably worse than it was after one cycle. It's best to use a +lossless format while manipulating an image, then convert to JPEG format when +you are ready to file the image away. +.PP +The +.B \-optimize +option to +.B cjpeg +is worth using when you are making a "final" version for posting or archiving. +It's also a win when you are using low quality settings to make very small +JPEG files; the percentage improvement is often a lot more than it is on +larger files. (At present, +.B \-optimize +mode is always selected when generating progressive JPEG files.) +.SH ENVIRONMENT +.TP +.B JPEGMEM +If this environment variable is set, its value is the default memory limit. +The value is specified as described for the +.B \-maxmemory +switch. +.B JPEGMEM +overrides the default value specified when the program was compiled, and +itself is overridden by an explicit +.BR \-maxmemory . +.SH SEE ALSO +.BR djpeg (1), +.BR jpegtran (1), +.BR rdjpgcom (1), +.BR wrjpgcom (1) +.br +.BR ppm (5), +.BR pgm (5) +.br +Wallace, Gregory K. "The JPEG Still Picture Compression Standard", +Communications of the ACM, April 1991 (vol. 34, no. 4), pp. 30-44. +.SH AUTHOR +Independent JPEG Group +.SH BUGS +GIF input files are no longer supported, to avoid the Unisys LZW patent. +(Conversion of GIF files to JPEG is usually a bad idea anyway.) +.PP +Not all variants of BMP and Targa file formats are supported. +.PP +The +.B \-targa +switch is not a bug, it's a feature. (It would be a bug if the Targa format +designers had not been clueless.) diff --git a/jpeg/cjpeg.c b/jpeg/cjpeg.c new file mode 100644 index 0000000..9a9a09a --- /dev/null +++ b/jpeg/cjpeg.c @@ -0,0 +1,643 @@ +/* + * cjpeg.c + * + * Copyright (C) 1991-1998, Thomas G. Lane. + * Modified 2003-2011 by Guido Vollbeding. + * This file is part of the Independent JPEG Group's software. + * For conditions of distribution and use, see the accompanying README file. + * + * This file contains a command-line user interface for the JPEG compressor. + * It should work on any system with Unix- or MS-DOS-style command lines. + * + * Two different command line styles are permitted, depending on the + * compile-time switch TWO_FILE_COMMANDLINE: + * cjpeg [options] inputfile outputfile + * cjpeg [options] [inputfile] + * In the second style, output is always to standard output, which you'd + * normally redirect to a file or pipe to some other program. Input is + * either from a named file or from standard input (typically redirected). + * The second style is convenient on Unix but is unhelpful on systems that + * don't support pipes. Also, you MUST use the first style if your system + * doesn't do binary I/O to stdin/stdout. + * To simplify script writing, the "-outfile" switch is provided. The syntax + * cjpeg [options] -outfile outputfile inputfile + * works regardless of which command line style is used. + */ + +#include "cdjpeg.h" /* Common decls for cjpeg/djpeg applications */ +#include "jversion.h" /* for version message */ + +#ifdef USE_CCOMMAND /* command-line reader for Macintosh */ +#ifdef __MWERKS__ +#include /* Metrowerks needs this */ +#include /* ... and this */ +#endif +#ifdef THINK_C +#include /* Think declares it here */ +#endif +#endif + + +/* Create the add-on message string table. */ + +#define JMESSAGE(code,string) string , + +static const char * const cdjpeg_message_table[] = { +#include "cderror.h" + NULL +}; + + +/* + * This routine determines what format the input file is, + * and selects the appropriate input-reading module. + * + * To determine which family of input formats the file belongs to, + * we may look only at the first byte of the file, since C does not + * guarantee that more than one character can be pushed back with ungetc. + * Looking at additional bytes would require one of these approaches: + * 1) assume we can fseek() the input file (fails for piped input); + * 2) assume we can push back more than one character (works in + * some C implementations, but unportable); + * 3) provide our own buffering (breaks input readers that want to use + * stdio directly, such as the RLE library); + * or 4) don't put back the data, and modify the input_init methods to assume + * they start reading after the start of file (also breaks RLE library). + * #1 is attractive for MS-DOS but is untenable on Unix. + * + * The most portable solution for file types that can't be identified by their + * first byte is to make the user tell us what they are. This is also the + * only approach for "raw" file types that contain only arbitrary values. + * We presently apply this method for Targa files. Most of the time Targa + * files start with 0x00, so we recognize that case. Potentially, however, + * a Targa file could start with any byte value (byte 0 is the length of the + * seldom-used ID field), so we provide a switch to force Targa input mode. + */ + +static boolean is_targa; /* records user -targa switch */ + + +LOCAL(cjpeg_source_ptr) +select_file_type (j_compress_ptr cinfo, FILE * infile) +{ + int c; + + if (is_targa) { +#ifdef TARGA_SUPPORTED + return jinit_read_targa(cinfo); +#else + ERREXIT(cinfo, JERR_TGA_NOTCOMP); +#endif + } + + if ((c = getc(infile)) == EOF) + ERREXIT(cinfo, JERR_INPUT_EMPTY); + if (ungetc(c, infile) == EOF) + ERREXIT(cinfo, JERR_UNGETC_FAILED); + + switch (c) { +#ifdef BMP_SUPPORTED + case 'B': + return jinit_read_bmp(cinfo); +#endif +#ifdef GIF_SUPPORTED + case 'G': + return jinit_read_gif(cinfo); +#endif +#ifdef PPM_SUPPORTED + case 'P': + return jinit_read_ppm(cinfo); +#endif +#ifdef RLE_SUPPORTED + case 'R': + return jinit_read_rle(cinfo); +#endif +#ifdef TARGA_SUPPORTED + case 0x00: + return jinit_read_targa(cinfo); +#endif + default: + ERREXIT(cinfo, JERR_UNKNOWN_FORMAT); + break; + } + + return NULL; /* suppress compiler warnings */ +} + + +/* + * Argument-parsing code. + * The switch parser is designed to be useful with DOS-style command line + * syntax, ie, intermixed switches and file names, where only the switches + * to the left of a given file name affect processing of that file. + * The main program in this file doesn't actually use this capability... + */ + + +static const char * progname; /* program name for error messages */ +static char * outfilename; /* for -outfile switch */ + + +LOCAL(void) +usage (void) +/* complain about bad command line */ +{ + fprintf(stderr, "usage: %s [switches] ", progname); +#ifdef TWO_FILE_COMMANDLINE + fprintf(stderr, "inputfile outputfile\n"); +#else + fprintf(stderr, "[inputfile]\n"); +#endif + + fprintf(stderr, "Switches (names may be abbreviated):\n"); + fprintf(stderr, " -quality N[,...] Compression quality (0..100; 5-95 is useful range)\n"); + fprintf(stderr, " -grayscale Create monochrome JPEG file\n"); + fprintf(stderr, " -rgb Create RGB JPEG file\n"); +#ifdef ENTROPY_OPT_SUPPORTED + fprintf(stderr, " -optimize Optimize Huffman table (smaller file, but slow compression)\n"); +#endif +#ifdef C_PROGRESSIVE_SUPPORTED + fprintf(stderr, " -progressive Create progressive JPEG file\n"); +#endif +#ifdef DCT_SCALING_SUPPORTED + fprintf(stderr, " -scale M/N Scale image by fraction M/N, eg, 1/2\n"); +#endif +#ifdef TARGA_SUPPORTED + fprintf(stderr, " -targa Input file is Targa format (usually not needed)\n"); +#endif + fprintf(stderr, "Switches for advanced users:\n"); +#ifdef C_ARITH_CODING_SUPPORTED + fprintf(stderr, " -arithmetic Use arithmetic coding\n"); +#endif +#ifdef DCT_SCALING_SUPPORTED + fprintf(stderr, " -block N DCT block size (1..16; default is 8)\n"); +#endif +#ifdef DCT_ISLOW_SUPPORTED + fprintf(stderr, " -dct int Use integer DCT method%s\n", + (JDCT_DEFAULT == JDCT_ISLOW ? " (default)" : "")); +#endif +#ifdef DCT_IFAST_SUPPORTED + fprintf(stderr, " -dct fast Use fast integer DCT (less accurate)%s\n", + (JDCT_DEFAULT == JDCT_IFAST ? " (default)" : "")); +#endif +#ifdef DCT_FLOAT_SUPPORTED + fprintf(stderr, " -dct float Use floating-point DCT method%s\n", + (JDCT_DEFAULT == JDCT_FLOAT ? " (default)" : "")); +#endif + fprintf(stderr, " -nosmooth Don't use high-quality downsampling\n"); + fprintf(stderr, " -restart N Set restart interval in rows, or in blocks with B\n"); +#ifdef INPUT_SMOOTHING_SUPPORTED + fprintf(stderr, " -smooth N Smooth dithered input (N=1..100 is strength)\n"); +#endif + fprintf(stderr, " -maxmemory N Maximum memory to use (in kbytes)\n"); + fprintf(stderr, " -outfile name Specify name for output file\n"); + fprintf(stderr, " -verbose or -debug Emit debug output\n"); + fprintf(stderr, "Switches for wizards:\n"); + fprintf(stderr, " -baseline Force baseline quantization tables\n"); + fprintf(stderr, " -qtables file Use quantization tables given in file\n"); + fprintf(stderr, " -qslots N[,...] Set component quantization tables\n"); + fprintf(stderr, " -sample HxV[,...] Set component sampling factors\n"); +#ifdef C_MULTISCAN_FILES_SUPPORTED + fprintf(stderr, " -scans file Create multi-scan JPEG per script file\n"); +#endif + exit(EXIT_FAILURE); +} + + +LOCAL(int) +parse_switches (j_compress_ptr cinfo, int argc, char **argv, + int last_file_arg_seen, boolean for_real) +/* Parse optional switches. + * Returns argv[] index of first file-name argument (== argc if none). + * Any file names with indexes <= last_file_arg_seen are ignored; + * they have presumably been processed in a previous iteration. + * (Pass 0 for last_file_arg_seen on the first or only iteration.) + * for_real is FALSE on the first (dummy) pass; we may skip any expensive + * processing. + */ +{ + int argn; + char * arg; + boolean force_baseline; + boolean simple_progressive; + char * qualityarg = NULL; /* saves -quality parm if any */ + char * qtablefile = NULL; /* saves -qtables filename if any */ + char * qslotsarg = NULL; /* saves -qslots parm if any */ + char * samplearg = NULL; /* saves -sample parm if any */ + char * scansarg = NULL; /* saves -scans parm if any */ + + /* Set up default JPEG parameters. */ + + force_baseline = FALSE; /* by default, allow 16-bit quantizers */ + simple_progressive = FALSE; + is_targa = FALSE; + outfilename = NULL; + cinfo->err->trace_level = 0; + + /* Scan command line options, adjust parameters */ + + for (argn = 1; argn < argc; argn++) { + arg = argv[argn]; + if (*arg != '-') { + /* Not a switch, must be a file name argument */ + if (argn <= last_file_arg_seen) { + outfilename = NULL; /* -outfile applies to just one input file */ + continue; /* ignore this name if previously processed */ + } + break; /* else done parsing switches */ + } + arg++; /* advance past switch marker character */ + + if (keymatch(arg, "arithmetic", 1)) { + /* Use arithmetic coding. */ +#ifdef C_ARITH_CODING_SUPPORTED + cinfo->arith_code = TRUE; +#else + fprintf(stderr, "%s: sorry, arithmetic coding not supported\n", + progname); + exit(EXIT_FAILURE); +#endif + + } else if (keymatch(arg, "baseline", 2)) { + /* Force baseline-compatible output (8-bit quantizer values). */ + force_baseline = TRUE; + + } else if (keymatch(arg, "block", 2)) { + /* Set DCT block size. */ +#if defined DCT_SCALING_SUPPORTED && JPEG_LIB_VERSION_MAJOR >= 8 && \ + (JPEG_LIB_VERSION_MAJOR > 8 || JPEG_LIB_VERSION_MINOR >= 3) + int val; + + if (++argn >= argc) /* advance to next argument */ + usage(); + if (sscanf(argv[argn], "%d", &val) != 1) + usage(); + if (val < 1 || val > 16) + usage(); + cinfo->block_size = val; +#else + fprintf(stderr, "%s: sorry, block size setting not supported\n", + progname); + exit(EXIT_FAILURE); +#endif + + } else if (keymatch(arg, "dct", 2)) { + /* Select DCT algorithm. */ + if (++argn >= argc) /* advance to next argument */ + usage(); + if (keymatch(argv[argn], "int", 1)) { + cinfo->dct_method = JDCT_ISLOW; + } else if (keymatch(argv[argn], "fast", 2)) { + cinfo->dct_method = JDCT_IFAST; + } else if (keymatch(argv[argn], "float", 2)) { + cinfo->dct_method = JDCT_FLOAT; + } else + usage(); + + } else if (keymatch(arg, "debug", 1) || keymatch(arg, "verbose", 1)) { + /* Enable debug printouts. */ + /* On first -d, print version identification */ + static boolean printed_version = FALSE; + + if (! printed_version) { + fprintf(stderr, "Independent JPEG Group's CJPEG, version %s\n%s\n", + JVERSION, JCOPYRIGHT); + printed_version = TRUE; + } + cinfo->err->trace_level++; + + } else if (keymatch(arg, "grayscale", 2) || keymatch(arg, "greyscale",2)) { + /* Force a monochrome JPEG file to be generated. */ + jpeg_set_colorspace(cinfo, JCS_GRAYSCALE); + + } else if (keymatch(arg, "rgb", 3)) { + /* Force an RGB JPEG file to be generated. */ + jpeg_set_colorspace(cinfo, JCS_RGB); + + } else if (keymatch(arg, "maxmemory", 3)) { + /* Maximum memory in Kb (or Mb with 'm'). */ + long lval; + char ch = 'x'; + + if (++argn >= argc) /* advance to next argument */ + usage(); + if (sscanf(argv[argn], "%ld%c", &lval, &ch) < 1) + usage(); + if (ch == 'm' || ch == 'M') + lval *= 1000L; + cinfo->mem->max_memory_to_use = lval * 1000L; + + } else if (keymatch(arg, "nosmooth", 3)) { + /* Suppress fancy downsampling */ + cinfo->do_fancy_downsampling = FALSE; + + } else if (keymatch(arg, "optimize", 1) || keymatch(arg, "optimise", 1)) { + /* Enable entropy parm optimization. */ +#ifdef ENTROPY_OPT_SUPPORTED + cinfo->optimize_coding = TRUE; +#else + fprintf(stderr, "%s: sorry, entropy optimization was not compiled\n", + progname); + exit(EXIT_FAILURE); +#endif + + } else if (keymatch(arg, "outfile", 4)) { + /* Set output file name. */ + if (++argn >= argc) /* advance to next argument */ + usage(); + outfilename = argv[argn]; /* save it away for later use */ + + } else if (keymatch(arg, "progressive", 1)) { + /* Select simple progressive mode. */ +#ifdef C_PROGRESSIVE_SUPPORTED + simple_progressive = TRUE; + /* We must postpone execution until num_components is known. */ +#else + fprintf(stderr, "%s: sorry, progressive output was not compiled\n", + progname); + exit(EXIT_FAILURE); +#endif + + } else if (keymatch(arg, "quality", 1)) { + /* Quality ratings (quantization table scaling factors). */ + if (++argn >= argc) /* advance to next argument */ + usage(); + qualityarg = argv[argn]; + + } else if (keymatch(arg, "qslots", 2)) { + /* Quantization table slot numbers. */ + if (++argn >= argc) /* advance to next argument */ + usage(); + qslotsarg = argv[argn]; + /* Must delay setting qslots until after we have processed any + * colorspace-determining switches, since jpeg_set_colorspace sets + * default quant table numbers. + */ + + } else if (keymatch(arg, "qtables", 2)) { + /* Quantization tables fetched from file. */ + if (++argn >= argc) /* advance to next argument */ + usage(); + qtablefile = argv[argn]; + /* We postpone actually reading the file in case -quality comes later. */ + + } else if (keymatch(arg, "restart", 1)) { + /* Restart interval in MCU rows (or in MCUs with 'b'). */ + long lval; + char ch = 'x'; + + if (++argn >= argc) /* advance to next argument */ + usage(); + if (sscanf(argv[argn], "%ld%c", &lval, &ch) < 1) + usage(); + if (lval < 0 || lval > 65535L) + usage(); + if (ch == 'b' || ch == 'B') { + cinfo->restart_interval = (unsigned int) lval; + cinfo->restart_in_rows = 0; /* else prior '-restart n' overrides me */ + } else { + cinfo->restart_in_rows = (int) lval; + /* restart_interval will be computed during startup */ + } + + } else if (keymatch(arg, "sample", 2)) { + /* Set sampling factors. */ + if (++argn >= argc) /* advance to next argument */ + usage(); + samplearg = argv[argn]; + /* Must delay setting sample factors until after we have processed any + * colorspace-determining switches, since jpeg_set_colorspace sets + * default sampling factors. + */ + + } else if (keymatch(arg, "scale", 4)) { + /* Scale the image by a fraction M/N. */ + if (++argn >= argc) /* advance to next argument */ + usage(); + if (sscanf(argv[argn], "%d/%d", + &cinfo->scale_num, &cinfo->scale_denom) != 2) + usage(); + + } else if (keymatch(arg, "scans", 4)) { + /* Set scan script. */ +#ifdef C_MULTISCAN_FILES_SUPPORTED + if (++argn >= argc) /* advance to next argument */ + usage(); + scansarg = argv[argn]; + /* We must postpone reading the file in case -progressive appears. */ +#else + fprintf(stderr, "%s: sorry, multi-scan output was not compiled\n", + progname); + exit(EXIT_FAILURE); +#endif + + } else if (keymatch(arg, "smooth", 2)) { + /* Set input smoothing factor. */ + int val; + + if (++argn >= argc) /* advance to next argument */ + usage(); + if (sscanf(argv[argn], "%d", &val) != 1) + usage(); + if (val < 0 || val > 100) + usage(); + cinfo->smoothing_factor = val; + + } else if (keymatch(arg, "targa", 1)) { + /* Input file is Targa format. */ + is_targa = TRUE; + + } else { + usage(); /* bogus switch */ + } + } + + /* Post-switch-scanning cleanup */ + + if (for_real) { + + /* Set quantization tables for selected quality. */ + /* Some or all may be overridden if -qtables is present. */ + if (qualityarg != NULL) /* process -quality if it was present */ + if (! set_quality_ratings(cinfo, qualityarg, force_baseline)) + usage(); + + if (qtablefile != NULL) /* process -qtables if it was present */ + if (! read_quant_tables(cinfo, qtablefile, force_baseline)) + usage(); + + if (qslotsarg != NULL) /* process -qslots if it was present */ + if (! set_quant_slots(cinfo, qslotsarg)) + usage(); + + if (samplearg != NULL) /* process -sample if it was present */ + if (! set_sample_factors(cinfo, samplearg)) + usage(); + +#ifdef C_PROGRESSIVE_SUPPORTED + if (simple_progressive) /* process -progressive; -scans can override */ + jpeg_simple_progression(cinfo); +#endif + +#ifdef C_MULTISCAN_FILES_SUPPORTED + if (scansarg != NULL) /* process -scans if it was present */ + if (! read_scan_script(cinfo, scansarg)) + usage(); +#endif + } + + return argn; /* return index of next arg (file name) */ +} + + +/* + * The main program. + */ + +int +main (int argc, char **argv) +{ + struct jpeg_compress_struct cinfo; + struct jpeg_error_mgr jerr; +#ifdef PROGRESS_REPORT + struct cdjpeg_progress_mgr progress; +#endif + int file_index; + cjpeg_source_ptr src_mgr; + FILE * input_file; + FILE * output_file; + JDIMENSION num_scanlines; + + /* On Mac, fetch a command line. */ +#ifdef USE_CCOMMAND + argc = ccommand(&argv); +#endif + + progname = argv[0]; + if (progname == NULL || progname[0] == 0) + progname = "cjpeg"; /* in case C library doesn't provide it */ + + /* Initialize the JPEG compression object with default error handling. */ + cinfo.err = jpeg_std_error(&jerr); + jpeg_create_compress(&cinfo); + /* Add some application-specific error messages (from cderror.h) */ + jerr.addon_message_table = cdjpeg_message_table; + jerr.first_addon_message = JMSG_FIRSTADDONCODE; + jerr.last_addon_message = JMSG_LASTADDONCODE; + + /* Now safe to enable signal catcher. */ +#ifdef NEED_SIGNAL_CATCHER + enable_signal_catcher((j_common_ptr) &cinfo); +#endif + + /* Initialize JPEG parameters. + * Much of this may be overridden later. + * In particular, we don't yet know the input file's color space, + * but we need to provide some value for jpeg_set_defaults() to work. + */ + + cinfo.in_color_space = JCS_RGB; /* arbitrary guess */ + jpeg_set_defaults(&cinfo); + + /* Scan command line to find file names. + * It is convenient to use just one switch-parsing routine, but the switch + * values read here are ignored; we will rescan the switches after opening + * the input file. + */ + + file_index = parse_switches(&cinfo, argc, argv, 0, FALSE); + +#ifdef TWO_FILE_COMMANDLINE + /* Must have either -outfile switch or explicit output file name */ + if (outfilename == NULL) { + if (file_index != argc-2) { + fprintf(stderr, "%s: must name one input and one output file\n", + progname); + usage(); + } + outfilename = argv[file_index+1]; + } else { + if (file_index != argc-1) { + fprintf(stderr, "%s: must name one input and one output file\n", + progname); + usage(); + } + } +#else + /* Unix style: expect zero or one file name */ + if (file_index < argc-1) { + fprintf(stderr, "%s: only one input file\n", progname); + usage(); + } +#endif /* TWO_FILE_COMMANDLINE */ + + /* Open the input file. */ + if (file_index < argc) { + if ((input_file = fopen(argv[file_index], READ_BINARY)) == NULL) { + fprintf(stderr, "%s: can't open %s\n", progname, argv[file_index]); + exit(EXIT_FAILURE); + } + } else { + /* default input file is stdin */ + input_file = read_stdin(); + } + + /* Open the output file. */ + if (outfilename != NULL) { + if ((output_file = fopen(outfilename, WRITE_BINARY)) == NULL) { + fprintf(stderr, "%s: can't open %s\n", progname, outfilename); + exit(EXIT_FAILURE); + } + } else { + /* default output file is stdout */ + output_file = write_stdout(); + } + +#ifdef PROGRESS_REPORT + start_progress_monitor((j_common_ptr) &cinfo, &progress); +#endif + + /* Figure out the input file format, and set up to read it. */ + src_mgr = select_file_type(&cinfo, input_file); + src_mgr->input_file = input_file; + + /* Read the input file header to obtain file size & colorspace. */ + (*src_mgr->start_input) (&cinfo, src_mgr); + + /* Now that we know input colorspace, fix colorspace-dependent defaults */ + jpeg_default_colorspace(&cinfo); + + /* Adjust default compression parameters by re-parsing the options */ + file_index = parse_switches(&cinfo, argc, argv, 0, TRUE); + + /* Specify data destination for compression */ + jpeg_stdio_dest(&cinfo, output_file); + + /* Start compressor */ + jpeg_start_compress(&cinfo, TRUE); + + /* Process data */ + while (cinfo.next_scanline < cinfo.image_height) { + num_scanlines = (*src_mgr->get_pixel_rows) (&cinfo, src_mgr); + (void) jpeg_write_scanlines(&cinfo, src_mgr->buffer, num_scanlines); + } + + /* Finish compression and release memory */ + (*src_mgr->finish_input) (&cinfo, src_mgr); + jpeg_finish_compress(&cinfo); + jpeg_destroy_compress(&cinfo); + + /* Close files, if we opened them */ + if (input_file != stdin) + fclose(input_file); + if (output_file != stdout) + fclose(output_file); + +#ifdef PROGRESS_REPORT + end_progress_monitor((j_common_ptr) &cinfo); +#endif + + /* All done. */ + exit(jerr.num_warnings ? EXIT_WARNING : EXIT_SUCCESS); + return 0; /* suppress no-return-value warnings */ +} diff --git a/jpeg/ckconfig.c b/jpeg/ckconfig.c new file mode 100644 index 0000000..e658623 --- /dev/null +++ b/jpeg/ckconfig.c @@ -0,0 +1,402 @@ +/* + * ckconfig.c + * + * Copyright (C) 1991-1994, Thomas G. Lane. + * This file is part of the Independent JPEG Group's software. + * For conditions of distribution and use, see the accompanying README file. + */ + +/* + * This program is intended to help you determine how to configure the JPEG + * software for installation on a particular system. The idea is to try to + * compile and execute this program. If your compiler fails to compile the + * program, make changes as indicated in the comments below. Once you can + * compile the program, run it, and it will produce a "jconfig.h" file for + * your system. + * + * As a general rule, each time you try to compile this program, + * pay attention only to the *first* error message you get from the compiler. + * Many C compilers will issue lots of spurious error messages once they + * have gotten confused. Go to the line indicated in the first error message, + * and read the comments preceding that line to see what to change. + * + * Almost all of the edits you may need to make to this program consist of + * changing a line that reads "#define SOME_SYMBOL" to "#undef SOME_SYMBOL", + * or vice versa. This is called defining or undefining that symbol. + */ + + +/* First we must see if your system has the include files we need. + * We start out with the assumption that your system has all the ANSI-standard + * include files. If you get any error trying to include one of these files, + * undefine the corresponding HAVE_xxx symbol. + */ + +#define HAVE_STDDEF_H /* replace 'define' by 'undef' if error here */ +#ifdef HAVE_STDDEF_H /* next line will be skipped if you undef... */ +#include +#endif + +#define HAVE_STDLIB_H /* same thing for stdlib.h */ +#ifdef HAVE_STDLIB_H +#include +#endif + +#include /* If you ain't got this, you ain't got C. */ + +/* We have to see if your string functions are defined by + * strings.h (old BSD convention) or string.h (everybody else). + * We try the non-BSD convention first; define NEED_BSD_STRINGS + * if the compiler says it can't find string.h. + */ + +#undef NEED_BSD_STRINGS + +#ifdef NEED_BSD_STRINGS +#include +#else +#include +#endif + +/* On some systems (especially older Unix machines), type size_t is + * defined only in the include file . If you get a failure + * on the size_t test below, try defining NEED_SYS_TYPES_H. + */ + +#undef NEED_SYS_TYPES_H /* start by assuming we don't need it */ +#ifdef NEED_SYS_TYPES_H +#include +#endif + + +/* Usually type size_t is defined in one of the include files we've included + * above. If not, you'll get an error on the "typedef size_t my_size_t;" line. + * In that case, first try defining NEED_SYS_TYPES_H just above. + * If that doesn't work, you'll have to search through your system library + * to figure out which include file defines "size_t". Look for a line that + * says "typedef something-or-other size_t;". Then, change the line below + * that says "#include " to instead include the file + * you found size_t in, and define NEED_SPECIAL_INCLUDE. If you can't find + * type size_t anywhere, try replacing "#include " with + * "typedef unsigned int size_t;". + */ + +#undef NEED_SPECIAL_INCLUDE /* assume we DON'T need it, for starters */ + +#ifdef NEED_SPECIAL_INCLUDE +#include +#endif + +typedef size_t my_size_t; /* The payoff: do we have size_t now? */ + + +/* The next question is whether your compiler supports ANSI-style function + * prototypes. You need to know this in order to choose between using + * makefile.ansi and using makefile.unix. + * The #define line below is set to assume you have ANSI function prototypes. + * If you get an error in this group of lines, undefine HAVE_PROTOTYPES. + */ + +#define HAVE_PROTOTYPES + +#ifdef HAVE_PROTOTYPES +int testfunction (int arg1, int * arg2); /* check prototypes */ + +struct methods_struct { /* check method-pointer declarations */ + int (*error_exit) (char *msgtext); + int (*trace_message) (char *msgtext); + int (*another_method) (void); +}; + +int testfunction (int arg1, int * arg2) /* check definitions */ +{ + return arg2[arg1]; +} + +int test2function (void) /* check void arg list */ +{ + return 0; +} +#endif + + +/* Now we want to find out if your compiler knows what "unsigned char" means. + * If you get an error on the "unsigned char un_char;" line, + * then undefine HAVE_UNSIGNED_CHAR. + */ + +#define HAVE_UNSIGNED_CHAR + +#ifdef HAVE_UNSIGNED_CHAR +unsigned char un_char; +#endif + + +/* Now we want to find out if your compiler knows what "unsigned short" means. + * If you get an error on the "unsigned short un_short;" line, + * then undefine HAVE_UNSIGNED_SHORT. + */ + +#define HAVE_UNSIGNED_SHORT + +#ifdef HAVE_UNSIGNED_SHORT +unsigned short un_short; +#endif + + +/* Now we want to find out if your compiler understands type "void". + * If you get an error anywhere in here, undefine HAVE_VOID. + */ + +#define HAVE_VOID + +#ifdef HAVE_VOID +/* Caution: a C++ compiler will insist on complete prototypes */ +typedef void * void_ptr; /* check void * */ +#ifdef HAVE_PROTOTYPES /* check ptr to function returning void */ +typedef void (*void_func) (int a, int b); +#else +typedef void (*void_func) (); +#endif + +#ifdef HAVE_PROTOTYPES /* check void function result */ +void test3function (void_ptr arg1, void_func arg2) +#else +void test3function (arg1, arg2) + void_ptr arg1; + void_func arg2; +#endif +{ + char * locptr = (char *) arg1; /* check casting to and from void * */ + arg1 = (void *) locptr; + (*arg2) (1, 2); /* check call of fcn returning void */ +} +#endif + + +/* Now we want to find out if your compiler knows what "const" means. + * If you get an error here, undefine HAVE_CONST. + */ + +#define HAVE_CONST + +#ifdef HAVE_CONST +static const int carray[3] = {1, 2, 3}; + +#ifdef HAVE_PROTOTYPES +int test4function (const int arg1) +#else +int test4function (arg1) + const int arg1; +#endif +{ + return carray[arg1]; +} +#endif + + +/* If you get an error or warning about this structure definition, + * define INCOMPLETE_TYPES_BROKEN. + */ + +#undef INCOMPLETE_TYPES_BROKEN + +#ifndef INCOMPLETE_TYPES_BROKEN +typedef struct undefined_structure * undef_struct_ptr; +#endif + + +/* If you get an error about duplicate names, + * define NEED_SHORT_EXTERNAL_NAMES. + */ + +#undef NEED_SHORT_EXTERNAL_NAMES + +#ifndef NEED_SHORT_EXTERNAL_NAMES + +int possibly_duplicate_function () +{ + return 0; +} + +int possibly_dupli_function () +{ + return 1; +} + +#endif + + + +/************************************************************************ + * OK, that's it. You should not have to change anything beyond this + * point in order to compile and execute this program. (You might get + * some warnings, but you can ignore them.) + * When you run the program, it will make a couple more tests that it + * can do automatically, and then it will create jconfig.h and print out + * any additional suggestions it has. + ************************************************************************ + */ + + +#ifdef HAVE_PROTOTYPES +int is_char_signed (int arg) +#else +int is_char_signed (arg) + int arg; +#endif +{ + if (arg == 189) { /* expected result for unsigned char */ + return 0; /* type char is unsigned */ + } + else if (arg != -67) { /* expected result for signed char */ + printf("Hmm, it seems 'char' is not eight bits wide on your machine.\n"); + printf("I fear the JPEG software will not work at all.\n\n"); + } + return 1; /* assume char is signed otherwise */ +} + + +#ifdef HAVE_PROTOTYPES +int is_shifting_signed (long arg) +#else +int is_shifting_signed (arg) + long arg; +#endif +/* See whether right-shift on a long is signed or not. */ +{ + long res = arg >> 4; + + if (res == -0x7F7E80CL) { /* expected result for signed shift */ + return 1; /* right shift is signed */ + } + /* see if unsigned-shift hack will fix it. */ + /* we can't just test exact value since it depends on width of long... */ + res |= (~0L) << (32-4); + if (res == -0x7F7E80CL) { /* expected result now? */ + return 0; /* right shift is unsigned */ + } + printf("Right shift isn't acting as I expect it to.\n"); + printf("I fear the JPEG software will not work at all.\n\n"); + return 0; /* try it with unsigned anyway */ +} + + +#ifdef HAVE_PROTOTYPES +int main (int argc, char ** argv) +#else +int main (argc, argv) + int argc; + char ** argv; +#endif +{ + char signed_char_check = (char) (-67); + FILE *outfile; + + /* Attempt to write jconfig.h */ + if ((outfile = fopen("jconfig.h", "w")) == NULL) { + printf("Failed to write jconfig.h\n"); + return 1; + } + + /* Write out all the info */ + fprintf(outfile, "/* jconfig.h --- generated by ckconfig.c */\n"); + fprintf(outfile, "/* see jconfig.txt for explanations */\n\n"); +#ifdef HAVE_PROTOTYPES + fprintf(outfile, "#define HAVE_PROTOTYPES\n"); +#else + fprintf(outfile, "#undef HAVE_PROTOTYPES\n"); +#endif +#ifdef HAVE_UNSIGNED_CHAR + fprintf(outfile, "#define HAVE_UNSIGNED_CHAR\n"); +#else + fprintf(outfile, "#undef HAVE_UNSIGNED_CHAR\n"); +#endif +#ifdef HAVE_UNSIGNED_SHORT + fprintf(outfile, "#define HAVE_UNSIGNED_SHORT\n"); +#else + fprintf(outfile, "#undef HAVE_UNSIGNED_SHORT\n"); +#endif +#ifdef HAVE_VOID + fprintf(outfile, "/* #define void char */\n"); +#else + fprintf(outfile, "#define void char\n"); +#endif +#ifdef HAVE_CONST + fprintf(outfile, "/* #define const */\n"); +#else + fprintf(outfile, "#define const\n"); +#endif + if (is_char_signed((int) signed_char_check)) + fprintf(outfile, "#undef CHAR_IS_UNSIGNED\n"); + else + fprintf(outfile, "#define CHAR_IS_UNSIGNED\n"); +#ifdef HAVE_STDDEF_H + fprintf(outfile, "#define HAVE_STDDEF_H\n"); +#else + fprintf(outfile, "#undef HAVE_STDDEF_H\n"); +#endif +#ifdef HAVE_STDLIB_H + fprintf(outfile, "#define HAVE_STDLIB_H\n"); +#else + fprintf(outfile, "#undef HAVE_STDLIB_H\n"); +#endif +#ifdef NEED_BSD_STRINGS + fprintf(outfile, "#define NEED_BSD_STRINGS\n"); +#else + fprintf(outfile, "#undef NEED_BSD_STRINGS\n"); +#endif +#ifdef NEED_SYS_TYPES_H + fprintf(outfile, "#define NEED_SYS_TYPES_H\n"); +#else + fprintf(outfile, "#undef NEED_SYS_TYPES_H\n"); +#endif + fprintf(outfile, "#undef NEED_FAR_POINTERS\n"); +#ifdef NEED_SHORT_EXTERNAL_NAMES + fprintf(outfile, "#define NEED_SHORT_EXTERNAL_NAMES\n"); +#else + fprintf(outfile, "#undef NEED_SHORT_EXTERNAL_NAMES\n"); +#endif +#ifdef INCOMPLETE_TYPES_BROKEN + fprintf(outfile, "#define INCOMPLETE_TYPES_BROKEN\n"); +#else + fprintf(outfile, "#undef INCOMPLETE_TYPES_BROKEN\n"); +#endif + fprintf(outfile, "\n#ifdef JPEG_INTERNALS\n\n"); + if (is_shifting_signed(-0x7F7E80B1L)) + fprintf(outfile, "#undef RIGHT_SHIFT_IS_UNSIGNED\n"); + else + fprintf(outfile, "#define RIGHT_SHIFT_IS_UNSIGNED\n"); + fprintf(outfile, "\n#endif /* JPEG_INTERNALS */\n"); + fprintf(outfile, "\n#ifdef JPEG_CJPEG_DJPEG\n\n"); + fprintf(outfile, "#define BMP_SUPPORTED /* BMP image file format */\n"); + fprintf(outfile, "#define GIF_SUPPORTED /* GIF image file format */\n"); + fprintf(outfile, "#define PPM_SUPPORTED /* PBMPLUS PPM/PGM image file format */\n"); + fprintf(outfile, "#undef RLE_SUPPORTED /* Utah RLE image file format */\n"); + fprintf(outfile, "#define TARGA_SUPPORTED /* Targa image file format */\n\n"); + fprintf(outfile, "#undef TWO_FILE_COMMANDLINE /* You may need this on non-Unix systems */\n"); + fprintf(outfile, "#undef NEED_SIGNAL_CATCHER /* Define this if you use jmemname.c */\n"); + fprintf(outfile, "#undef DONT_USE_B_MODE\n"); + fprintf(outfile, "/* #define PROGRESS_REPORT */ /* optional */\n"); + fprintf(outfile, "\n#endif /* JPEG_CJPEG_DJPEG */\n"); + + /* Close the jconfig.h file */ + fclose(outfile); + + /* User report */ + printf("Configuration check for Independent JPEG Group's software done.\n"); + printf("\nI have written the jconfig.h file for you.\n\n"); +#ifdef HAVE_PROTOTYPES + printf("You should use makefile.ansi as the starting point for your Makefile.\n"); +#else + printf("You should use makefile.unix as the starting point for your Makefile.\n"); +#endif + +#ifdef NEED_SPECIAL_INCLUDE + printf("\nYou'll need to change jconfig.h to include the system include file\n"); + printf("that you found type size_t in, or add a direct definition of type\n"); + printf("size_t if that's what you used. Just add it to the end.\n"); +#endif + + return 0; +} diff --git a/jpeg/coderules.txt b/jpeg/coderules.txt new file mode 100644 index 0000000..357929f --- /dev/null +++ b/jpeg/coderules.txt @@ -0,0 +1,118 @@ +IJG JPEG LIBRARY: CODING RULES + +Copyright (C) 1991-1996, Thomas G. Lane. +This file is part of the Independent JPEG Group's software. +For conditions of distribution and use, see the accompanying README file. + + +Since numerous people will be contributing code and bug fixes, it's important +to establish a common coding style. The goal of using similar coding styles +is much more important than the details of just what that style is. + +In general we follow the recommendations of "Recommended C Style and Coding +Standards" revision 6.1 (Cannon et al. as modified by Spencer, Keppel and +Brader). This document is available in the IJG FTP archive (see +jpeg/doc/cstyle.ms.tbl.Z, or cstyle.txt.Z for those without nroff/tbl). + +Block comments should be laid out thusly: + +/* + * Block comments in this style. + */ + +We indent statements in K&R style, e.g., + if (test) { + then-part; + } else { + else-part; + } +with two spaces per indentation level. (This indentation convention is +handled automatically by GNU Emacs and many other text editors.) + +Multi-word names should be written in lower case with underscores, e.g., +multi_word_name (not multiWordName). Preprocessor symbols and enum constants +are similar but upper case (MULTI_WORD_NAME). Names should be unique within +the first fifteen characters. (On some older systems, global names must be +unique within six characters. We accommodate this without cluttering the +source code by using macros to substitute shorter names.) + +We use function prototypes everywhere; we rely on automatic source code +transformation to feed prototype-less C compilers. Transformation is done +by the simple and portable tool 'ansi2knr.c' (courtesy of Ghostscript). +ansi2knr is not very bright, so it imposes a format requirement on function +declarations: the function name MUST BEGIN IN COLUMN 1. Thus all functions +should be written in the following style: + +LOCAL(int *) +function_name (int a, char *b) +{ + code... +} + +Note that each function definition must begin with GLOBAL(type), LOCAL(type), +or METHODDEF(type). These macros expand to "static type" or just "type" as +appropriate. They provide a readable indication of the routine's usage and +can readily be changed for special needs. (For instance, special linkage +keywords can be inserted for use in Windows DLLs.) + +ansi2knr does not transform method declarations (function pointers in +structs). We handle these with a macro JMETHOD, defined as + #ifdef HAVE_PROTOTYPES + #define JMETHOD(type,methodname,arglist) type (*methodname) arglist + #else + #define JMETHOD(type,methodname,arglist) type (*methodname) () + #endif +which is used like this: + struct function_pointers { + JMETHOD(void, init_entropy_encoder, (int somearg, jparms *jp)); + JMETHOD(void, term_entropy_encoder, (void)); + }; +Note the set of parentheses surrounding the parameter list. + +A similar solution is used for forward and external function declarations +(see the EXTERN and JPP macros). + +If the code is to work on non-ANSI compilers, we cannot rely on a prototype +declaration to coerce actual parameters into the right types. Therefore, use +explicit casts on actual parameters whenever the actual parameter type is not +identical to the formal parameter. Beware of implicit conversions to "int". + +It seems there are some non-ANSI compilers in which the sizeof() operator +is defined to return int, yet size_t is defined as long. Needless to say, +this is brain-damaged. Always use the SIZEOF() macro in place of sizeof(), +so that the result is guaranteed to be of type size_t. + + +The JPEG library is intended to be used within larger programs. Furthermore, +we want it to be reentrant so that it can be used by applications that process +multiple images concurrently. The following rules support these requirements: + +1. Avoid direct use of file I/O, "malloc", error report printouts, etc; +pass these through the common routines provided. + +2. Minimize global namespace pollution. Functions should be declared static +wherever possible. (Note that our method-based calling conventions help this +a lot: in many modules only the initialization function will ever need to be +called directly, so only that function need be externally visible.) All +global function names should begin with "jpeg_", and should have an +abbreviated name (unique in the first six characters) substituted by macro +when NEED_SHORT_EXTERNAL_NAMES is set. + +3. Don't use global variables; anything that must be used in another module +should be in the common data structures. + +4. Don't use static variables except for read-only constant tables. Variables +that should be private to a module can be placed into private structures (see +the system architecture document, structure.txt). + +5. Source file names should begin with "j" for files that are part of the +library proper; source files that are not part of the library, such as cjpeg.c +and djpeg.c, do not begin with "j". Keep source file names to eight +characters (plus ".c" or ".h", etc) to make life easy for MS-DOSers. Keep +compression and decompression code in separate source files --- some +applications may want only one half of the library. + +Note: these rules (particularly #4) are not followed religiously in the +modules that are used in cjpeg/djpeg but are not part of the JPEG library +proper. Those modules are not really intended to be used in other +applications. diff --git a/jpeg/config.guess b/jpeg/config.guess new file mode 100644 index 0000000..8152efd --- /dev/null +++ b/jpeg/config.guess @@ -0,0 +1,1522 @@ +#! /bin/sh +# Attempt to guess a canonical system name. +# Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, +# 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, +# 2011 Free Software Foundation, Inc. + +timestamp='2011-11-11' + +# This file is free software; you can redistribute it and/or modify it +# under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 2 of the License, or +# (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, but +# WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +# General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write to the Free Software +# Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA +# 02110-1301, USA. +# +# As a special exception to the GNU General Public License, if you +# distribute this file as part of a program that contains a +# configuration script generated by Autoconf, you may include it under +# the same distribution terms that you use for the rest of that program. + + +# Originally written by Per Bothner. Please send patches (context +# diff format) to and include a ChangeLog +# entry. +# +# This script attempts to guess a canonical system name similar to +# config.sub. If it succeeds, it prints the system name on stdout, and +# exits with 0. Otherwise, it exits with 1. +# +# You can get the latest version of this script from: +# http://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.guess;hb=HEAD + +me=`echo "$0" | sed -e 's,.*/,,'` + +usage="\ +Usage: $0 [OPTION] + +Output the configuration name of the system \`$me' is run on. + +Operation modes: + -h, --help print this help, then exit + -t, --time-stamp print date of last modification, then exit + -v, --version print version number, then exit + +Report bugs and patches to ." + +version="\ +GNU config.guess ($timestamp) + +Originally written by Per Bothner. +Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, +2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Free +Software Foundation, Inc. + +This is free software; see the source for copying conditions. There is NO +warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE." + +help=" +Try \`$me --help' for more information." + +# Parse command line +while test $# -gt 0 ; do + case $1 in + --time-stamp | --time* | -t ) + echo "$timestamp" ; exit ;; + --version | -v ) + echo "$version" ; exit ;; + --help | --h* | -h ) + echo "$usage"; exit ;; + -- ) # Stop option processing + shift; break ;; + - ) # Use stdin as input. + break ;; + -* ) + echo "$me: invalid option $1$help" >&2 + exit 1 ;; + * ) + break ;; + esac +done + +if test $# != 0; then + echo "$me: too many arguments$help" >&2 + exit 1 +fi + +trap 'exit 1' 1 2 15 + +# CC_FOR_BUILD -- compiler used by this script. Note that the use of a +# compiler to aid in system detection is discouraged as it requires +# temporary files to be created and, as you can see below, it is a +# headache to deal with in a portable fashion. + +# Historically, `CC_FOR_BUILD' used to be named `HOST_CC'. We still +# use `HOST_CC' if defined, but it is deprecated. + +# Portable tmp directory creation inspired by the Autoconf team. + +set_cc_for_build=' +trap "exitcode=\$?; (rm -f \$tmpfiles 2>/dev/null; rmdir \$tmp 2>/dev/null) && exit \$exitcode" 0 ; +trap "rm -f \$tmpfiles 2>/dev/null; rmdir \$tmp 2>/dev/null; exit 1" 1 2 13 15 ; +: ${TMPDIR=/tmp} ; + { tmp=`(umask 077 && mktemp -d "$TMPDIR/cgXXXXXX") 2>/dev/null` && test -n "$tmp" && test -d "$tmp" ; } || + { test -n "$RANDOM" && tmp=$TMPDIR/cg$$-$RANDOM && (umask 077 && mkdir $tmp) ; } || + { tmp=$TMPDIR/cg-$$ && (umask 077 && mkdir $tmp) && echo "Warning: creating insecure temp directory" >&2 ; } || + { echo "$me: cannot create a temporary directory in $TMPDIR" >&2 ; exit 1 ; } ; +dummy=$tmp/dummy ; +tmpfiles="$dummy.c $dummy.o $dummy.rel $dummy" ; +case $CC_FOR_BUILD,$HOST_CC,$CC in + ,,) echo "int x;" > $dummy.c ; + for c in cc gcc c89 c99 ; do + if ($c -c -o $dummy.o $dummy.c) >/dev/null 2>&1 ; then + CC_FOR_BUILD="$c"; break ; + fi ; + done ; + if test x"$CC_FOR_BUILD" = x ; then + CC_FOR_BUILD=no_compiler_found ; + fi + ;; + ,,*) CC_FOR_BUILD=$CC ;; + ,*,*) CC_FOR_BUILD=$HOST_CC ;; +esac ; set_cc_for_build= ;' + +# This is needed to find uname on a Pyramid OSx when run in the BSD universe. +# (ghazi@noc.rutgers.edu 1994-08-24) +if (test -f /.attbin/uname) >/dev/null 2>&1 ; then + PATH=$PATH:/.attbin ; export PATH +fi + +UNAME_MACHINE=`(uname -m) 2>/dev/null` || UNAME_MACHINE=unknown +UNAME_RELEASE=`(uname -r) 2>/dev/null` || UNAME_RELEASE=unknown +UNAME_SYSTEM=`(uname -s) 2>/dev/null` || UNAME_SYSTEM=unknown +UNAME_VERSION=`(uname -v) 2>/dev/null` || UNAME_VERSION=unknown + +# Note: order is significant - the case branches are not exclusive. + +case "${UNAME_MACHINE}:${UNAME_SYSTEM}:${UNAME_RELEASE}:${UNAME_VERSION}" in + *:NetBSD:*:*) + # NetBSD (nbsd) targets should (where applicable) match one or + # more of the tupples: *-*-netbsdelf*, *-*-netbsdaout*, + # *-*-netbsdecoff* and *-*-netbsd*. For targets that recently + # switched to ELF, *-*-netbsd* would select the old + # object file format. This provides both forward + # compatibility and a consistent mechanism for selecting the + # object file format. + # + # Note: NetBSD doesn't particularly care about the vendor + # portion of the name. We always set it to "unknown". + sysctl="sysctl -n hw.machine_arch" + UNAME_MACHINE_ARCH=`(/sbin/$sysctl 2>/dev/null || \ + /usr/sbin/$sysctl 2>/dev/null || echo unknown)` + case "${UNAME_MACHINE_ARCH}" in + armeb) machine=armeb-unknown ;; + arm*) machine=arm-unknown ;; + sh3el) machine=shl-unknown ;; + sh3eb) machine=sh-unknown ;; + sh5el) machine=sh5le-unknown ;; + *) machine=${UNAME_MACHINE_ARCH}-unknown ;; + esac + # The Operating System including object format, if it has switched + # to ELF recently, or will in the future. + case "${UNAME_MACHINE_ARCH}" in + arm*|i386|m68k|ns32k|sh3*|sparc|vax) + eval $set_cc_for_build + if echo __ELF__ | $CC_FOR_BUILD -E - 2>/dev/null \ + | grep -q __ELF__ + then + # Once all utilities can be ECOFF (netbsdecoff) or a.out (netbsdaout). + # Return netbsd for either. FIX? + os=netbsd + else + os=netbsdelf + fi + ;; + *) + os=netbsd + ;; + esac + # The OS release + # Debian GNU/NetBSD machines have a different userland, and + # thus, need a distinct triplet. However, they do not need + # kernel version information, so it can be replaced with a + # suitable tag, in the style of linux-gnu. + case "${UNAME_VERSION}" in + Debian*) + release='-gnu' + ;; + *) + release=`echo ${UNAME_RELEASE}|sed -e 's/[-_].*/\./'` + ;; + esac + # Since CPU_TYPE-MANUFACTURER-KERNEL-OPERATING_SYSTEM: + # contains redundant information, the shorter form: + # CPU_TYPE-MANUFACTURER-OPERATING_SYSTEM is used. + echo "${machine}-${os}${release}" + exit ;; + *:OpenBSD:*:*) + UNAME_MACHINE_ARCH=`arch | sed 's/OpenBSD.//'` + echo ${UNAME_MACHINE_ARCH}-unknown-openbsd${UNAME_RELEASE} + exit ;; + *:ekkoBSD:*:*) + echo ${UNAME_MACHINE}-unknown-ekkobsd${UNAME_RELEASE} + exit ;; + *:SolidBSD:*:*) + echo ${UNAME_MACHINE}-unknown-solidbsd${UNAME_RELEASE} + exit ;; + macppc:MirBSD:*:*) + echo powerpc-unknown-mirbsd${UNAME_RELEASE} + exit ;; + *:MirBSD:*:*) + echo ${UNAME_MACHINE}-unknown-mirbsd${UNAME_RELEASE} + exit ;; + alpha:OSF1:*:*) + case $UNAME_RELEASE in + *4.0) + UNAME_RELEASE=`/usr/sbin/sizer -v | awk '{print $3}'` + ;; + *5.*) + UNAME_RELEASE=`/usr/sbin/sizer -v | awk '{print $4}'` + ;; + esac + # According to Compaq, /usr/sbin/psrinfo has been available on + # OSF/1 and Tru64 systems produced since 1995. I hope that + # covers most systems running today. This code pipes the CPU + # types through head -n 1, so we only detect the type of CPU 0. + ALPHA_CPU_TYPE=`/usr/sbin/psrinfo -v | sed -n -e 's/^ The alpha \(.*\) processor.*$/\1/p' | head -n 1` + case "$ALPHA_CPU_TYPE" in + "EV4 (21064)") + UNAME_MACHINE="alpha" ;; + "EV4.5 (21064)") + UNAME_MACHINE="alpha" ;; + "LCA4 (21066/21068)") + UNAME_MACHINE="alpha" ;; + "EV5 (21164)") + UNAME_MACHINE="alphaev5" ;; + "EV5.6 (21164A)") + UNAME_MACHINE="alphaev56" ;; + "EV5.6 (21164PC)") + UNAME_MACHINE="alphapca56" ;; + "EV5.7 (21164PC)") + UNAME_MACHINE="alphapca57" ;; + "EV6 (21264)") + UNAME_MACHINE="alphaev6" ;; + "EV6.7 (21264A)") + UNAME_MACHINE="alphaev67" ;; + "EV6.8CB (21264C)") + UNAME_MACHINE="alphaev68" ;; + "EV6.8AL (21264B)") + UNAME_MACHINE="alphaev68" ;; + "EV6.8CX (21264D)") + UNAME_MACHINE="alphaev68" ;; + "EV6.9A (21264/EV69A)") + UNAME_MACHINE="alphaev69" ;; + "EV7 (21364)") + UNAME_MACHINE="alphaev7" ;; + "EV7.9 (21364A)") + UNAME_MACHINE="alphaev79" ;; + esac + # A Pn.n version is a patched version. + # A Vn.n version is a released version. + # A Tn.n version is a released field test version. + # A Xn.n version is an unreleased experimental baselevel. + # 1.2 uses "1.2" for uname -r. + echo ${UNAME_MACHINE}-dec-osf`echo ${UNAME_RELEASE} | sed -e 's/^[PVTX]//' | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz'` + # Reset EXIT trap before exiting to avoid spurious non-zero exit code. + exitcode=$? + trap '' 0 + exit $exitcode ;; + Alpha\ *:Windows_NT*:*) + # How do we know it's Interix rather than the generic POSIX subsystem? + # Should we change UNAME_MACHINE based on the output of uname instead + # of the specific Alpha model? + echo alpha-pc-interix + exit ;; + 21064:Windows_NT:50:3) + echo alpha-dec-winnt3.5 + exit ;; + Amiga*:UNIX_System_V:4.0:*) + echo m68k-unknown-sysv4 + exit ;; + *:[Aa]miga[Oo][Ss]:*:*) + echo ${UNAME_MACHINE}-unknown-amigaos + exit ;; + *:[Mm]orph[Oo][Ss]:*:*) + echo ${UNAME_MACHINE}-unknown-morphos + exit ;; + *:OS/390:*:*) + echo i370-ibm-openedition + exit ;; + *:z/VM:*:*) + echo s390-ibm-zvmoe + exit ;; + *:OS400:*:*) + echo powerpc-ibm-os400 + exit ;; + arm:RISC*:1.[012]*:*|arm:riscix:1.[012]*:*) + echo arm-acorn-riscix${UNAME_RELEASE} + exit ;; + arm:riscos:*:*|arm:RISCOS:*:*) + echo arm-unknown-riscos + exit ;; + SR2?01:HI-UX/MPP:*:* | SR8000:HI-UX/MPP:*:*) + echo hppa1.1-hitachi-hiuxmpp + exit ;; + Pyramid*:OSx*:*:* | MIS*:OSx*:*:* | MIS*:SMP_DC-OSx*:*:*) + # akee@wpdis03.wpafb.af.mil (Earle F. Ake) contributed MIS and NILE. + if test "`(/bin/universe) 2>/dev/null`" = att ; then + echo pyramid-pyramid-sysv3 + else + echo pyramid-pyramid-bsd + fi + exit ;; + NILE*:*:*:dcosx) + echo pyramid-pyramid-svr4 + exit ;; + DRS?6000:unix:4.0:6*) + echo sparc-icl-nx6 + exit ;; + DRS?6000:UNIX_SV:4.2*:7* | DRS?6000:isis:4.2*:7*) + case `/usr/bin/uname -p` in + sparc) echo sparc-icl-nx7; exit ;; + esac ;; + s390x:SunOS:*:*) + echo ${UNAME_MACHINE}-ibm-solaris2`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'` + exit ;; + sun4H:SunOS:5.*:*) + echo sparc-hal-solaris2`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'` + exit ;; + sun4*:SunOS:5.*:* | tadpole*:SunOS:5.*:*) + echo sparc-sun-solaris2`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'` + exit ;; + i86pc:AuroraUX:5.*:* | i86xen:AuroraUX:5.*:*) + echo i386-pc-auroraux${UNAME_RELEASE} + exit ;; + i86pc:SunOS:5.*:* | i86xen:SunOS:5.*:*) + eval $set_cc_for_build + SUN_ARCH="i386" + # If there is a compiler, see if it is configured for 64-bit objects. + # Note that the Sun cc does not turn __LP64__ into 1 like gcc does. + # This test works for both compilers. + if [ "$CC_FOR_BUILD" != 'no_compiler_found' ]; then + if (echo '#ifdef __amd64'; echo IS_64BIT_ARCH; echo '#endif') | \ + (CCOPTS= $CC_FOR_BUILD -E - 2>/dev/null) | \ + grep IS_64BIT_ARCH >/dev/null + then + SUN_ARCH="x86_64" + fi + fi + echo ${SUN_ARCH}-pc-solaris2`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'` + exit ;; + sun4*:SunOS:6*:*) + # According to config.sub, this is the proper way to canonicalize + # SunOS6. Hard to guess exactly what SunOS6 will be like, but + # it's likely to be more like Solaris than SunOS4. + echo sparc-sun-solaris3`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'` + exit ;; + sun4*:SunOS:*:*) + case "`/usr/bin/arch -k`" in + Series*|S4*) + UNAME_RELEASE=`uname -v` + ;; + esac + # Japanese Language versions have a version number like `4.1.3-JL'. + echo sparc-sun-sunos`echo ${UNAME_RELEASE}|sed -e 's/-/_/'` + exit ;; + sun3*:SunOS:*:*) + echo m68k-sun-sunos${UNAME_RELEASE} + exit ;; + sun*:*:4.2BSD:*) + UNAME_RELEASE=`(sed 1q /etc/motd | awk '{print substr($5,1,3)}') 2>/dev/null` + test "x${UNAME_RELEASE}" = "x" && UNAME_RELEASE=3 + case "`/bin/arch`" in + sun3) + echo m68k-sun-sunos${UNAME_RELEASE} + ;; + sun4) + echo sparc-sun-sunos${UNAME_RELEASE} + ;; + esac + exit ;; + aushp:SunOS:*:*) + echo sparc-auspex-sunos${UNAME_RELEASE} + exit ;; + # The situation for MiNT is a little confusing. The machine name + # can be virtually everything (everything which is not + # "atarist" or "atariste" at least should have a processor + # > m68000). The system name ranges from "MiNT" over "FreeMiNT" + # to the lowercase version "mint" (or "freemint"). Finally + # the system name "TOS" denotes a system which is actually not + # MiNT. But MiNT is downward compatible to TOS, so this should + # be no problem. + atarist[e]:*MiNT:*:* | atarist[e]:*mint:*:* | atarist[e]:*TOS:*:*) + echo m68k-atari-mint${UNAME_RELEASE} + exit ;; + atari*:*MiNT:*:* | atari*:*mint:*:* | atarist[e]:*TOS:*:*) + echo m68k-atari-mint${UNAME_RELEASE} + exit ;; + *falcon*:*MiNT:*:* | *falcon*:*mint:*:* | *falcon*:*TOS:*:*) + echo m68k-atari-mint${UNAME_RELEASE} + exit ;; + milan*:*MiNT:*:* | milan*:*mint:*:* | *milan*:*TOS:*:*) + echo m68k-milan-mint${UNAME_RELEASE} + exit ;; + hades*:*MiNT:*:* | hades*:*mint:*:* | *hades*:*TOS:*:*) + echo m68k-hades-mint${UNAME_RELEASE} + exit ;; + *:*MiNT:*:* | *:*mint:*:* | *:*TOS:*:*) + echo m68k-unknown-mint${UNAME_RELEASE} + exit ;; + m68k:machten:*:*) + echo m68k-apple-machten${UNAME_RELEASE} + exit ;; + powerpc:machten:*:*) + echo powerpc-apple-machten${UNAME_RELEASE} + exit ;; + RISC*:Mach:*:*) + echo mips-dec-mach_bsd4.3 + exit ;; + RISC*:ULTRIX:*:*) + echo mips-dec-ultrix${UNAME_RELEASE} + exit ;; + VAX*:ULTRIX*:*:*) + echo vax-dec-ultrix${UNAME_RELEASE} + exit ;; + 2020:CLIX:*:* | 2430:CLIX:*:*) + echo clipper-intergraph-clix${UNAME_RELEASE} + exit ;; + mips:*:*:UMIPS | mips:*:*:RISCos) + eval $set_cc_for_build + sed 's/^ //' << EOF >$dummy.c +#ifdef __cplusplus +#include /* for printf() prototype */ + int main (int argc, char *argv[]) { +#else + int main (argc, argv) int argc; char *argv[]; { +#endif + #if defined (host_mips) && defined (MIPSEB) + #if defined (SYSTYPE_SYSV) + printf ("mips-mips-riscos%ssysv\n", argv[1]); exit (0); + #endif + #if defined (SYSTYPE_SVR4) + printf ("mips-mips-riscos%ssvr4\n", argv[1]); exit (0); + #endif + #if defined (SYSTYPE_BSD43) || defined(SYSTYPE_BSD) + printf ("mips-mips-riscos%sbsd\n", argv[1]); exit (0); + #endif + #endif + exit (-1); + } +EOF + $CC_FOR_BUILD -o $dummy $dummy.c && + dummyarg=`echo "${UNAME_RELEASE}" | sed -n 's/\([0-9]*\).*/\1/p'` && + SYSTEM_NAME=`$dummy $dummyarg` && + { echo "$SYSTEM_NAME"; exit; } + echo mips-mips-riscos${UNAME_RELEASE} + exit ;; + Motorola:PowerMAX_OS:*:*) + echo powerpc-motorola-powermax + exit ;; + Motorola:*:4.3:PL8-*) + echo powerpc-harris-powermax + exit ;; + Night_Hawk:*:*:PowerMAX_OS | Synergy:PowerMAX_OS:*:*) + echo powerpc-harris-powermax + exit ;; + Night_Hawk:Power_UNIX:*:*) + echo powerpc-harris-powerunix + exit ;; + m88k:CX/UX:7*:*) + echo m88k-harris-cxux7 + exit ;; + m88k:*:4*:R4*) + echo m88k-motorola-sysv4 + exit ;; + m88k:*:3*:R3*) + echo m88k-motorola-sysv3 + exit ;; + AViiON:dgux:*:*) + # DG/UX returns AViiON for all architectures + UNAME_PROCESSOR=`/usr/bin/uname -p` + if [ $UNAME_PROCESSOR = mc88100 ] || [ $UNAME_PROCESSOR = mc88110 ] + then + if [ ${TARGET_BINARY_INTERFACE}x = m88kdguxelfx ] || \ + [ ${TARGET_BINARY_INTERFACE}x = x ] + then + echo m88k-dg-dgux${UNAME_RELEASE} + else + echo m88k-dg-dguxbcs${UNAME_RELEASE} + fi + else + echo i586-dg-dgux${UNAME_RELEASE} + fi + exit ;; + M88*:DolphinOS:*:*) # DolphinOS (SVR3) + echo m88k-dolphin-sysv3 + exit ;; + M88*:*:R3*:*) + # Delta 88k system running SVR3 + echo m88k-motorola-sysv3 + exit ;; + XD88*:*:*:*) # Tektronix XD88 system running UTekV (SVR3) + echo m88k-tektronix-sysv3 + exit ;; + Tek43[0-9][0-9]:UTek:*:*) # Tektronix 4300 system running UTek (BSD) + echo m68k-tektronix-bsd + exit ;; + *:IRIX*:*:*) + echo mips-sgi-irix`echo ${UNAME_RELEASE}|sed -e 's/-/_/g'` + exit ;; + ????????:AIX?:[12].1:2) # AIX 2.2.1 or AIX 2.1.1 is RT/PC AIX. + echo romp-ibm-aix # uname -m gives an 8 hex-code CPU id + exit ;; # Note that: echo "'`uname -s`'" gives 'AIX ' + i*86:AIX:*:*) + echo i386-ibm-aix + exit ;; + ia64:AIX:*:*) + if [ -x /usr/bin/oslevel ] ; then + IBM_REV=`/usr/bin/oslevel` + else + IBM_REV=${UNAME_VERSION}.${UNAME_RELEASE} + fi + echo ${UNAME_MACHINE}-ibm-aix${IBM_REV} + exit ;; + *:AIX:2:3) + if grep bos325 /usr/include/stdio.h >/dev/null 2>&1; then + eval $set_cc_for_build + sed 's/^ //' << EOF >$dummy.c + #include + + main() + { + if (!__power_pc()) + exit(1); + puts("powerpc-ibm-aix3.2.5"); + exit(0); + } +EOF + if $CC_FOR_BUILD -o $dummy $dummy.c && SYSTEM_NAME=`$dummy` + then + echo "$SYSTEM_NAME" + else + echo rs6000-ibm-aix3.2.5 + fi + elif grep bos324 /usr/include/stdio.h >/dev/null 2>&1; then + echo rs6000-ibm-aix3.2.4 + else + echo rs6000-ibm-aix3.2 + fi + exit ;; + *:AIX:*:[4567]) + IBM_CPU_ID=`/usr/sbin/lsdev -C -c processor -S available | sed 1q | awk '{ print $1 }'` + if /usr/sbin/lsattr -El ${IBM_CPU_ID} | grep ' POWER' >/dev/null 2>&1; then + IBM_ARCH=rs6000 + else + IBM_ARCH=powerpc + fi + if [ -x /usr/bin/oslevel ] ; then + IBM_REV=`/usr/bin/oslevel` + else + IBM_REV=${UNAME_VERSION}.${UNAME_RELEASE} + fi + echo ${IBM_ARCH}-ibm-aix${IBM_REV} + exit ;; + *:AIX:*:*) + echo rs6000-ibm-aix + exit ;; + ibmrt:4.4BSD:*|romp-ibm:BSD:*) + echo romp-ibm-bsd4.4 + exit ;; + ibmrt:*BSD:*|romp-ibm:BSD:*) # covers RT/PC BSD and + echo romp-ibm-bsd${UNAME_RELEASE} # 4.3 with uname added to + exit ;; # report: romp-ibm BSD 4.3 + *:BOSX:*:*) + echo rs6000-bull-bosx + exit ;; + DPX/2?00:B.O.S.:*:*) + echo m68k-bull-sysv3 + exit ;; + 9000/[34]??:4.3bsd:1.*:*) + echo m68k-hp-bsd + exit ;; + hp300:4.4BSD:*:* | 9000/[34]??:4.3bsd:2.*:*) + echo m68k-hp-bsd4.4 + exit ;; + 9000/[34678]??:HP-UX:*:*) + HPUX_REV=`echo ${UNAME_RELEASE}|sed -e 's/[^.]*.[0B]*//'` + case "${UNAME_MACHINE}" in + 9000/31? ) HP_ARCH=m68000 ;; + 9000/[34]?? ) HP_ARCH=m68k ;; + 9000/[678][0-9][0-9]) + if [ -x /usr/bin/getconf ]; then + sc_cpu_version=`/usr/bin/getconf SC_CPU_VERSION 2>/dev/null` + sc_kernel_bits=`/usr/bin/getconf SC_KERNEL_BITS 2>/dev/null` + case "${sc_cpu_version}" in + 523) HP_ARCH="hppa1.0" ;; # CPU_PA_RISC1_0 + 528) HP_ARCH="hppa1.1" ;; # CPU_PA_RISC1_1 + 532) # CPU_PA_RISC2_0 + case "${sc_kernel_bits}" in + 32) HP_ARCH="hppa2.0n" ;; + 64) HP_ARCH="hppa2.0w" ;; + '') HP_ARCH="hppa2.0" ;; # HP-UX 10.20 + esac ;; + esac + fi + if [ "${HP_ARCH}" = "" ]; then + eval $set_cc_for_build + sed 's/^ //' << EOF >$dummy.c + + #define _HPUX_SOURCE + #include + #include + + int main () + { + #if defined(_SC_KERNEL_BITS) + long bits = sysconf(_SC_KERNEL_BITS); + #endif + long cpu = sysconf (_SC_CPU_VERSION); + + switch (cpu) + { + case CPU_PA_RISC1_0: puts ("hppa1.0"); break; + case CPU_PA_RISC1_1: puts ("hppa1.1"); break; + case CPU_PA_RISC2_0: + #if defined(_SC_KERNEL_BITS) + switch (bits) + { + case 64: puts ("hppa2.0w"); break; + case 32: puts ("hppa2.0n"); break; + default: puts ("hppa2.0"); break; + } break; + #else /* !defined(_SC_KERNEL_BITS) */ + puts ("hppa2.0"); break; + #endif + default: puts ("hppa1.0"); break; + } + exit (0); + } +EOF + (CCOPTS= $CC_FOR_BUILD -o $dummy $dummy.c 2>/dev/null) && HP_ARCH=`$dummy` + test -z "$HP_ARCH" && HP_ARCH=hppa + fi ;; + esac + if [ ${HP_ARCH} = "hppa2.0w" ] + then + eval $set_cc_for_build + + # hppa2.0w-hp-hpux* has a 64-bit kernel and a compiler generating + # 32-bit code. hppa64-hp-hpux* has the same kernel and a compiler + # generating 64-bit code. GNU and HP use different nomenclature: + # + # $ CC_FOR_BUILD=cc ./config.guess + # => hppa2.0w-hp-hpux11.23 + # $ CC_FOR_BUILD="cc +DA2.0w" ./config.guess + # => hppa64-hp-hpux11.23 + + if echo __LP64__ | (CCOPTS= $CC_FOR_BUILD -E - 2>/dev/null) | + grep -q __LP64__ + then + HP_ARCH="hppa2.0w" + else + HP_ARCH="hppa64" + fi + fi + echo ${HP_ARCH}-hp-hpux${HPUX_REV} + exit ;; + ia64:HP-UX:*:*) + HPUX_REV=`echo ${UNAME_RELEASE}|sed -e 's/[^.]*.[0B]*//'` + echo ia64-hp-hpux${HPUX_REV} + exit ;; + 3050*:HI-UX:*:*) + eval $set_cc_for_build + sed 's/^ //' << EOF >$dummy.c + #include + int + main () + { + long cpu = sysconf (_SC_CPU_VERSION); + /* The order matters, because CPU_IS_HP_MC68K erroneously returns + true for CPU_PA_RISC1_0. CPU_IS_PA_RISC returns correct + results, however. */ + if (CPU_IS_PA_RISC (cpu)) + { + switch (cpu) + { + case CPU_PA_RISC1_0: puts ("hppa1.0-hitachi-hiuxwe2"); break; + case CPU_PA_RISC1_1: puts ("hppa1.1-hitachi-hiuxwe2"); break; + case CPU_PA_RISC2_0: puts ("hppa2.0-hitachi-hiuxwe2"); break; + default: puts ("hppa-hitachi-hiuxwe2"); break; + } + } + else if (CPU_IS_HP_MC68K (cpu)) + puts ("m68k-hitachi-hiuxwe2"); + else puts ("unknown-hitachi-hiuxwe2"); + exit (0); + } +EOF + $CC_FOR_BUILD -o $dummy $dummy.c && SYSTEM_NAME=`$dummy` && + { echo "$SYSTEM_NAME"; exit; } + echo unknown-hitachi-hiuxwe2 + exit ;; + 9000/7??:4.3bsd:*:* | 9000/8?[79]:4.3bsd:*:* ) + echo hppa1.1-hp-bsd + exit ;; + 9000/8??:4.3bsd:*:*) + echo hppa1.0-hp-bsd + exit ;; + *9??*:MPE/iX:*:* | *3000*:MPE/iX:*:*) + echo hppa1.0-hp-mpeix + exit ;; + hp7??:OSF1:*:* | hp8?[79]:OSF1:*:* ) + echo hppa1.1-hp-osf + exit ;; + hp8??:OSF1:*:*) + echo hppa1.0-hp-osf + exit ;; + i*86:OSF1:*:*) + if [ -x /usr/sbin/sysversion ] ; then + echo ${UNAME_MACHINE}-unknown-osf1mk + else + echo ${UNAME_MACHINE}-unknown-osf1 + fi + exit ;; + parisc*:Lites*:*:*) + echo hppa1.1-hp-lites + exit ;; + C1*:ConvexOS:*:* | convex:ConvexOS:C1*:*) + echo c1-convex-bsd + exit ;; + C2*:ConvexOS:*:* | convex:ConvexOS:C2*:*) + if getsysinfo -f scalar_acc + then echo c32-convex-bsd + else echo c2-convex-bsd + fi + exit ;; + C34*:ConvexOS:*:* | convex:ConvexOS:C34*:*) + echo c34-convex-bsd + exit ;; + C38*:ConvexOS:*:* | convex:ConvexOS:C38*:*) + echo c38-convex-bsd + exit ;; + C4*:ConvexOS:*:* | convex:ConvexOS:C4*:*) + echo c4-convex-bsd + exit ;; + CRAY*Y-MP:*:*:*) + echo ymp-cray-unicos${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/' + exit ;; + CRAY*[A-Z]90:*:*:*) + echo ${UNAME_MACHINE}-cray-unicos${UNAME_RELEASE} \ + | sed -e 's/CRAY.*\([A-Z]90\)/\1/' \ + -e y/ABCDEFGHIJKLMNOPQRSTUVWXYZ/abcdefghijklmnopqrstuvwxyz/ \ + -e 's/\.[^.]*$/.X/' + exit ;; + CRAY*TS:*:*:*) + echo t90-cray-unicos${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/' + exit ;; + CRAY*T3E:*:*:*) + echo alphaev5-cray-unicosmk${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/' + exit ;; + CRAY*SV1:*:*:*) + echo sv1-cray-unicos${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/' + exit ;; + *:UNICOS/mp:*:*) + echo craynv-cray-unicosmp${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/' + exit ;; + F30[01]:UNIX_System_V:*:* | F700:UNIX_System_V:*:*) + FUJITSU_PROC=`uname -m | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz'` + FUJITSU_SYS=`uname -p | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz' | sed -e 's/\///'` + FUJITSU_REL=`echo ${UNAME_RELEASE} | sed -e 's/ /_/'` + echo "${FUJITSU_PROC}-fujitsu-${FUJITSU_SYS}${FUJITSU_REL}" + exit ;; + 5000:UNIX_System_V:4.*:*) + FUJITSU_SYS=`uname -p | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz' | sed -e 's/\///'` + FUJITSU_REL=`echo ${UNAME_RELEASE} | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz' | sed -e 's/ /_/'` + echo "sparc-fujitsu-${FUJITSU_SYS}${FUJITSU_REL}" + exit ;; + i*86:BSD/386:*:* | i*86:BSD/OS:*:* | *:Ascend\ Embedded/OS:*:*) + echo ${UNAME_MACHINE}-pc-bsdi${UNAME_RELEASE} + exit ;; + sparc*:BSD/OS:*:*) + echo sparc-unknown-bsdi${UNAME_RELEASE} + exit ;; + *:BSD/OS:*:*) + echo ${UNAME_MACHINE}-unknown-bsdi${UNAME_RELEASE} + exit ;; + *:FreeBSD:*:*) + UNAME_PROCESSOR=`/usr/bin/uname -p` + case ${UNAME_PROCESSOR} in + amd64) + echo x86_64-unknown-freebsd`echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'` ;; + *) + echo ${UNAME_PROCESSOR}-unknown-freebsd`echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'` ;; + esac + exit ;; + i*:CYGWIN*:*) + echo ${UNAME_MACHINE}-pc-cygwin + exit ;; + *:MINGW*:*) + echo ${UNAME_MACHINE}-pc-mingw32 + exit ;; + i*:MSYS*:*) + echo ${UNAME_MACHINE}-pc-msys + exit ;; + i*:windows32*:*) + # uname -m includes "-pc" on this system. + echo ${UNAME_MACHINE}-mingw32 + exit ;; + i*:PW*:*) + echo ${UNAME_MACHINE}-pc-pw32 + exit ;; + *:Interix*:*) + case ${UNAME_MACHINE} in + x86) + echo i586-pc-interix${UNAME_RELEASE} + exit ;; + authenticamd | genuineintel | EM64T) + echo x86_64-unknown-interix${UNAME_RELEASE} + exit ;; + IA64) + echo ia64-unknown-interix${UNAME_RELEASE} + exit ;; + esac ;; + [345]86:Windows_95:* | [345]86:Windows_98:* | [345]86:Windows_NT:*) + echo i${UNAME_MACHINE}-pc-mks + exit ;; + 8664:Windows_NT:*) + echo x86_64-pc-mks + exit ;; + i*:Windows_NT*:* | Pentium*:Windows_NT*:*) + # How do we know it's Interix rather than the generic POSIX subsystem? + # It also conflicts with pre-2.0 versions of AT&T UWIN. Should we + # UNAME_MACHINE based on the output of uname instead of i386? + echo i586-pc-interix + exit ;; + i*:UWIN*:*) + echo ${UNAME_MACHINE}-pc-uwin + exit ;; + amd64:CYGWIN*:*:* | x86_64:CYGWIN*:*:*) + echo x86_64-unknown-cygwin + exit ;; + p*:CYGWIN*:*) + echo powerpcle-unknown-cygwin + exit ;; + prep*:SunOS:5.*:*) + echo powerpcle-unknown-solaris2`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'` + exit ;; + *:GNU:*:*) + # the GNU system + echo `echo ${UNAME_MACHINE}|sed -e 's,[-/].*$,,'`-unknown-gnu`echo ${UNAME_RELEASE}|sed -e 's,/.*$,,'` + exit ;; + *:GNU/*:*:*) + # other systems with GNU libc and userland + echo ${UNAME_MACHINE}-unknown-`echo ${UNAME_SYSTEM} | sed 's,^[^/]*/,,' | tr '[A-Z]' '[a-z]'``echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'`-gnu + exit ;; + i*86:Minix:*:*) + echo ${UNAME_MACHINE}-pc-minix + exit ;; + alpha:Linux:*:*) + case `sed -n '/^cpu model/s/^.*: \(.*\)/\1/p' < /proc/cpuinfo` in + EV5) UNAME_MACHINE=alphaev5 ;; + EV56) UNAME_MACHINE=alphaev56 ;; + PCA56) UNAME_MACHINE=alphapca56 ;; + PCA57) UNAME_MACHINE=alphapca56 ;; + EV6) UNAME_MACHINE=alphaev6 ;; + EV67) UNAME_MACHINE=alphaev67 ;; + EV68*) UNAME_MACHINE=alphaev68 ;; + esac + objdump --private-headers /bin/sh | grep -q ld.so.1 + if test "$?" = 0 ; then LIBC="libc1" ; else LIBC="" ; fi + echo ${UNAME_MACHINE}-unknown-linux-gnu${LIBC} + exit ;; + arm*:Linux:*:*) + eval $set_cc_for_build + if echo __ARM_EABI__ | $CC_FOR_BUILD -E - 2>/dev/null \ + | grep -q __ARM_EABI__ + then + echo ${UNAME_MACHINE}-unknown-linux-gnu + else + if echo __ARM_PCS_VFP | $CC_FOR_BUILD -E - 2>/dev/null \ + | grep -q __ARM_PCS_VFP + then + echo ${UNAME_MACHINE}-unknown-linux-gnueabi + else + echo ${UNAME_MACHINE}-unknown-linux-gnueabihf + fi + fi + exit ;; + avr32*:Linux:*:*) + echo ${UNAME_MACHINE}-unknown-linux-gnu + exit ;; + cris:Linux:*:*) + echo cris-axis-linux-gnu + exit ;; + crisv32:Linux:*:*) + echo crisv32-axis-linux-gnu + exit ;; + frv:Linux:*:*) + echo frv-unknown-linux-gnu + exit ;; + hexagon:Linux:*:*) + echo hexagon-unknown-linux-gnu + exit ;; + i*86:Linux:*:*) + LIBC=gnu + eval $set_cc_for_build + sed 's/^ //' << EOF >$dummy.c + #ifdef __dietlibc__ + LIBC=dietlibc + #endif +EOF + eval `$CC_FOR_BUILD -E $dummy.c 2>/dev/null | grep '^LIBC'` + echo "${UNAME_MACHINE}-pc-linux-${LIBC}" + exit ;; + ia64:Linux:*:*) + echo ${UNAME_MACHINE}-unknown-linux-gnu + exit ;; + m32r*:Linux:*:*) + echo ${UNAME_MACHINE}-unknown-linux-gnu + exit ;; + m68*:Linux:*:*) + echo ${UNAME_MACHINE}-unknown-linux-gnu + exit ;; + mips:Linux:*:* | mips64:Linux:*:*) + eval $set_cc_for_build + sed 's/^ //' << EOF >$dummy.c + #undef CPU + #undef ${UNAME_MACHINE} + #undef ${UNAME_MACHINE}el + #if defined(__MIPSEL__) || defined(__MIPSEL) || defined(_MIPSEL) || defined(MIPSEL) + CPU=${UNAME_MACHINE}el + #else + #if defined(__MIPSEB__) || defined(__MIPSEB) || defined(_MIPSEB) || defined(MIPSEB) + CPU=${UNAME_MACHINE} + #else + CPU= + #endif + #endif +EOF + eval `$CC_FOR_BUILD -E $dummy.c 2>/dev/null | grep '^CPU'` + test x"${CPU}" != x && { echo "${CPU}-unknown-linux-gnu"; exit; } + ;; + or32:Linux:*:*) + echo or32-unknown-linux-gnu + exit ;; + padre:Linux:*:*) + echo sparc-unknown-linux-gnu + exit ;; + parisc64:Linux:*:* | hppa64:Linux:*:*) + echo hppa64-unknown-linux-gnu + exit ;; + parisc:Linux:*:* | hppa:Linux:*:*) + # Look for CPU level + case `grep '^cpu[^a-z]*:' /proc/cpuinfo 2>/dev/null | cut -d' ' -f2` in + PA7*) echo hppa1.1-unknown-linux-gnu ;; + PA8*) echo hppa2.0-unknown-linux-gnu ;; + *) echo hppa-unknown-linux-gnu ;; + esac + exit ;; + ppc64:Linux:*:*) + echo powerpc64-unknown-linux-gnu + exit ;; + ppc:Linux:*:*) + echo powerpc-unknown-linux-gnu + exit ;; + s390:Linux:*:* | s390x:Linux:*:*) + echo ${UNAME_MACHINE}-ibm-linux + exit ;; + sh64*:Linux:*:*) + echo ${UNAME_MACHINE}-unknown-linux-gnu + exit ;; + sh*:Linux:*:*) + echo ${UNAME_MACHINE}-unknown-linux-gnu + exit ;; + sparc:Linux:*:* | sparc64:Linux:*:*) + echo ${UNAME_MACHINE}-unknown-linux-gnu + exit ;; + tile*:Linux:*:*) + echo ${UNAME_MACHINE}-unknown-linux-gnu + exit ;; + vax:Linux:*:*) + echo ${UNAME_MACHINE}-dec-linux-gnu + exit ;; + x86_64:Linux:*:*) + echo x86_64-unknown-linux-gnu + exit ;; + xtensa*:Linux:*:*) + echo ${UNAME_MACHINE}-unknown-linux-gnu + exit ;; + i*86:DYNIX/ptx:4*:*) + # ptx 4.0 does uname -s correctly, with DYNIX/ptx in there. + # earlier versions are messed up and put the nodename in both + # sysname and nodename. + echo i386-sequent-sysv4 + exit ;; + i*86:UNIX_SV:4.2MP:2.*) + # Unixware is an offshoot of SVR4, but it has its own version + # number series starting with 2... + # I am not positive that other SVR4 systems won't match this, + # I just have to hope. -- rms. + # Use sysv4.2uw... so that sysv4* matches it. + echo ${UNAME_MACHINE}-pc-sysv4.2uw${UNAME_VERSION} + exit ;; + i*86:OS/2:*:*) + # If we were able to find `uname', then EMX Unix compatibility + # is probably installed. + echo ${UNAME_MACHINE}-pc-os2-emx + exit ;; + i*86:XTS-300:*:STOP) + echo ${UNAME_MACHINE}-unknown-stop + exit ;; + i*86:atheos:*:*) + echo ${UNAME_MACHINE}-unknown-atheos + exit ;; + i*86:syllable:*:*) + echo ${UNAME_MACHINE}-pc-syllable + exit ;; + i*86:LynxOS:2.*:* | i*86:LynxOS:3.[01]*:* | i*86:LynxOS:4.[02]*:*) + echo i386-unknown-lynxos${UNAME_RELEASE} + exit ;; + i*86:*DOS:*:*) + echo ${UNAME_MACHINE}-pc-msdosdjgpp + exit ;; + i*86:*:4.*:* | i*86:SYSTEM_V:4.*:*) + UNAME_REL=`echo ${UNAME_RELEASE} | sed 's/\/MP$//'` + if grep Novell /usr/include/link.h >/dev/null 2>/dev/null; then + echo ${UNAME_MACHINE}-univel-sysv${UNAME_REL} + else + echo ${UNAME_MACHINE}-pc-sysv${UNAME_REL} + fi + exit ;; + i*86:*:5:[678]*) + # UnixWare 7.x, OpenUNIX and OpenServer 6. + case `/bin/uname -X | grep "^Machine"` in + *486*) UNAME_MACHINE=i486 ;; + *Pentium) UNAME_MACHINE=i586 ;; + *Pent*|*Celeron) UNAME_MACHINE=i686 ;; + esac + echo ${UNAME_MACHINE}-unknown-sysv${UNAME_RELEASE}${UNAME_SYSTEM}${UNAME_VERSION} + exit ;; + i*86:*:3.2:*) + if test -f /usr/options/cb.name; then + UNAME_REL=`sed -n 's/.*Version //p' /dev/null >/dev/null ; then + UNAME_REL=`(/bin/uname -X|grep Release|sed -e 's/.*= //')` + (/bin/uname -X|grep i80486 >/dev/null) && UNAME_MACHINE=i486 + (/bin/uname -X|grep '^Machine.*Pentium' >/dev/null) \ + && UNAME_MACHINE=i586 + (/bin/uname -X|grep '^Machine.*Pent *II' >/dev/null) \ + && UNAME_MACHINE=i686 + (/bin/uname -X|grep '^Machine.*Pentium Pro' >/dev/null) \ + && UNAME_MACHINE=i686 + echo ${UNAME_MACHINE}-pc-sco$UNAME_REL + else + echo ${UNAME_MACHINE}-pc-sysv32 + fi + exit ;; + pc:*:*:*) + # Left here for compatibility: + # uname -m prints for DJGPP always 'pc', but it prints nothing about + # the processor, so we play safe by assuming i586. + # Note: whatever this is, it MUST be the same as what config.sub + # prints for the "djgpp" host, or else GDB configury will decide that + # this is a cross-build. + echo i586-pc-msdosdjgpp + exit ;; + Intel:Mach:3*:*) + echo i386-pc-mach3 + exit ;; + paragon:*:*:*) + echo i860-intel-osf1 + exit ;; + i860:*:4.*:*) # i860-SVR4 + if grep Stardent /usr/include/sys/uadmin.h >/dev/null 2>&1 ; then + echo i860-stardent-sysv${UNAME_RELEASE} # Stardent Vistra i860-SVR4 + else # Add other i860-SVR4 vendors below as they are discovered. + echo i860-unknown-sysv${UNAME_RELEASE} # Unknown i860-SVR4 + fi + exit ;; + mini*:CTIX:SYS*5:*) + # "miniframe" + echo m68010-convergent-sysv + exit ;; + mc68k:UNIX:SYSTEM5:3.51m) + echo m68k-convergent-sysv + exit ;; + M680?0:D-NIX:5.3:*) + echo m68k-diab-dnix + exit ;; + M68*:*:R3V[5678]*:*) + test -r /sysV68 && { echo 'm68k-motorola-sysv'; exit; } ;; + 3[345]??:*:4.0:3.0 | 3[34]??A:*:4.0:3.0 | 3[34]??,*:*:4.0:3.0 | 3[34]??/*:*:4.0:3.0 | 4400:*:4.0:3.0 | 4850:*:4.0:3.0 | SKA40:*:4.0:3.0 | SDS2:*:4.0:3.0 | SHG2:*:4.0:3.0 | S7501*:*:4.0:3.0) + OS_REL='' + test -r /etc/.relid \ + && OS_REL=.`sed -n 's/[^ ]* [^ ]* \([0-9][0-9]\).*/\1/p' < /etc/.relid` + /bin/uname -p 2>/dev/null | grep 86 >/dev/null \ + && { echo i486-ncr-sysv4.3${OS_REL}; exit; } + /bin/uname -p 2>/dev/null | /bin/grep entium >/dev/null \ + && { echo i586-ncr-sysv4.3${OS_REL}; exit; } ;; + 3[34]??:*:4.0:* | 3[34]??,*:*:4.0:*) + /bin/uname -p 2>/dev/null | grep 86 >/dev/null \ + && { echo i486-ncr-sysv4; exit; } ;; + NCR*:*:4.2:* | MPRAS*:*:4.2:*) + OS_REL='.3' + test -r /etc/.relid \ + && OS_REL=.`sed -n 's/[^ ]* [^ ]* \([0-9][0-9]\).*/\1/p' < /etc/.relid` + /bin/uname -p 2>/dev/null | grep 86 >/dev/null \ + && { echo i486-ncr-sysv4.3${OS_REL}; exit; } + /bin/uname -p 2>/dev/null | /bin/grep entium >/dev/null \ + && { echo i586-ncr-sysv4.3${OS_REL}; exit; } + /bin/uname -p 2>/dev/null | /bin/grep pteron >/dev/null \ + && { echo i586-ncr-sysv4.3${OS_REL}; exit; } ;; + m68*:LynxOS:2.*:* | m68*:LynxOS:3.0*:*) + echo m68k-unknown-lynxos${UNAME_RELEASE} + exit ;; + mc68030:UNIX_System_V:4.*:*) + echo m68k-atari-sysv4 + exit ;; + TSUNAMI:LynxOS:2.*:*) + echo sparc-unknown-lynxos${UNAME_RELEASE} + exit ;; + rs6000:LynxOS:2.*:*) + echo rs6000-unknown-lynxos${UNAME_RELEASE} + exit ;; + PowerPC:LynxOS:2.*:* | PowerPC:LynxOS:3.[01]*:* | PowerPC:LynxOS:4.[02]*:*) + echo powerpc-unknown-lynxos${UNAME_RELEASE} + exit ;; + SM[BE]S:UNIX_SV:*:*) + echo mips-dde-sysv${UNAME_RELEASE} + exit ;; + RM*:ReliantUNIX-*:*:*) + echo mips-sni-sysv4 + exit ;; + RM*:SINIX-*:*:*) + echo mips-sni-sysv4 + exit ;; + *:SINIX-*:*:*) + if uname -p 2>/dev/null >/dev/null ; then + UNAME_MACHINE=`(uname -p) 2>/dev/null` + echo ${UNAME_MACHINE}-sni-sysv4 + else + echo ns32k-sni-sysv + fi + exit ;; + PENTIUM:*:4.0*:*) # Unisys `ClearPath HMP IX 4000' SVR4/MP effort + # says + echo i586-unisys-sysv4 + exit ;; + *:UNIX_System_V:4*:FTX*) + # From Gerald Hewes . + # How about differentiating between stratus architectures? -djm + echo hppa1.1-stratus-sysv4 + exit ;; + *:*:*:FTX*) + # From seanf@swdc.stratus.com. + echo i860-stratus-sysv4 + exit ;; + i*86:VOS:*:*) + # From Paul.Green@stratus.com. + echo ${UNAME_MACHINE}-stratus-vos + exit ;; + *:VOS:*:*) + # From Paul.Green@stratus.com. + echo hppa1.1-stratus-vos + exit ;; + mc68*:A/UX:*:*) + echo m68k-apple-aux${UNAME_RELEASE} + exit ;; + news*:NEWS-OS:6*:*) + echo mips-sony-newsos6 + exit ;; + R[34]000:*System_V*:*:* | R4000:UNIX_SYSV:*:* | R*000:UNIX_SV:*:*) + if [ -d /usr/nec ]; then + echo mips-nec-sysv${UNAME_RELEASE} + else + echo mips-unknown-sysv${UNAME_RELEASE} + fi + exit ;; + BeBox:BeOS:*:*) # BeOS running on hardware made by Be, PPC only. + echo powerpc-be-beos + exit ;; + BeMac:BeOS:*:*) # BeOS running on Mac or Mac clone, PPC only. + echo powerpc-apple-beos + exit ;; + BePC:BeOS:*:*) # BeOS running on Intel PC compatible. + echo i586-pc-beos + exit ;; + BePC:Haiku:*:*) # Haiku running on Intel PC compatible. + echo i586-pc-haiku + exit ;; + SX-4:SUPER-UX:*:*) + echo sx4-nec-superux${UNAME_RELEASE} + exit ;; + SX-5:SUPER-UX:*:*) + echo sx5-nec-superux${UNAME_RELEASE} + exit ;; + SX-6:SUPER-UX:*:*) + echo sx6-nec-superux${UNAME_RELEASE} + exit ;; + SX-7:SUPER-UX:*:*) + echo sx7-nec-superux${UNAME_RELEASE} + exit ;; + SX-8:SUPER-UX:*:*) + echo sx8-nec-superux${UNAME_RELEASE} + exit ;; + SX-8R:SUPER-UX:*:*) + echo sx8r-nec-superux${UNAME_RELEASE} + exit ;; + Power*:Rhapsody:*:*) + echo powerpc-apple-rhapsody${UNAME_RELEASE} + exit ;; + *:Rhapsody:*:*) + echo ${UNAME_MACHINE}-apple-rhapsody${UNAME_RELEASE} + exit ;; + *:Darwin:*:*) + UNAME_PROCESSOR=`uname -p` || UNAME_PROCESSOR=unknown + case $UNAME_PROCESSOR in + i386) + eval $set_cc_for_build + if [ "$CC_FOR_BUILD" != 'no_compiler_found' ]; then + if (echo '#ifdef __LP64__'; echo IS_64BIT_ARCH; echo '#endif') | \ + (CCOPTS= $CC_FOR_BUILD -E - 2>/dev/null) | \ + grep IS_64BIT_ARCH >/dev/null + then + UNAME_PROCESSOR="x86_64" + fi + fi ;; + unknown) UNAME_PROCESSOR=powerpc ;; + esac + echo ${UNAME_PROCESSOR}-apple-darwin${UNAME_RELEASE} + exit ;; + *:procnto*:*:* | *:QNX:[0123456789]*:*) + UNAME_PROCESSOR=`uname -p` + if test "$UNAME_PROCESSOR" = "x86"; then + UNAME_PROCESSOR=i386 + UNAME_MACHINE=pc + fi + echo ${UNAME_PROCESSOR}-${UNAME_MACHINE}-nto-qnx${UNAME_RELEASE} + exit ;; + *:QNX:*:4*) + echo i386-pc-qnx + exit ;; + NEO-?:NONSTOP_KERNEL:*:*) + echo neo-tandem-nsk${UNAME_RELEASE} + exit ;; + NSE-?:NONSTOP_KERNEL:*:*) + echo nse-tandem-nsk${UNAME_RELEASE} + exit ;; + NSR-?:NONSTOP_KERNEL:*:*) + echo nsr-tandem-nsk${UNAME_RELEASE} + exit ;; + *:NonStop-UX:*:*) + echo mips-compaq-nonstopux + exit ;; + BS2000:POSIX*:*:*) + echo bs2000-siemens-sysv + exit ;; + DS/*:UNIX_System_V:*:*) + echo ${UNAME_MACHINE}-${UNAME_SYSTEM}-${UNAME_RELEASE} + exit ;; + *:Plan9:*:*) + # "uname -m" is not consistent, so use $cputype instead. 386 + # is converted to i386 for consistency with other x86 + # operating systems. + if test "$cputype" = "386"; then + UNAME_MACHINE=i386 + else + UNAME_MACHINE="$cputype" + fi + echo ${UNAME_MACHINE}-unknown-plan9 + exit ;; + *:TOPS-10:*:*) + echo pdp10-unknown-tops10 + exit ;; + *:TENEX:*:*) + echo pdp10-unknown-tenex + exit ;; + KS10:TOPS-20:*:* | KL10:TOPS-20:*:* | TYPE4:TOPS-20:*:*) + echo pdp10-dec-tops20 + exit ;; + XKL-1:TOPS-20:*:* | TYPE5:TOPS-20:*:*) + echo pdp10-xkl-tops20 + exit ;; + *:TOPS-20:*:*) + echo pdp10-unknown-tops20 + exit ;; + *:ITS:*:*) + echo pdp10-unknown-its + exit ;; + SEI:*:*:SEIUX) + echo mips-sei-seiux${UNAME_RELEASE} + exit ;; + *:DragonFly:*:*) + echo ${UNAME_MACHINE}-unknown-dragonfly`echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'` + exit ;; + *:*VMS:*:*) + UNAME_MACHINE=`(uname -p) 2>/dev/null` + case "${UNAME_MACHINE}" in + A*) echo alpha-dec-vms ; exit ;; + I*) echo ia64-dec-vms ; exit ;; + V*) echo vax-dec-vms ; exit ;; + esac ;; + *:XENIX:*:SysV) + echo i386-pc-xenix + exit ;; + i*86:skyos:*:*) + echo ${UNAME_MACHINE}-pc-skyos`echo ${UNAME_RELEASE}` | sed -e 's/ .*$//' + exit ;; + i*86:rdos:*:*) + echo ${UNAME_MACHINE}-pc-rdos + exit ;; + i*86:AROS:*:*) + echo ${UNAME_MACHINE}-pc-aros + exit ;; +esac + +#echo '(No uname command or uname output not recognized.)' 1>&2 +#echo "${UNAME_MACHINE}:${UNAME_SYSTEM}:${UNAME_RELEASE}:${UNAME_VERSION}" 1>&2 + +eval $set_cc_for_build +cat >$dummy.c < +# include +#endif +main () +{ +#if defined (sony) +#if defined (MIPSEB) + /* BFD wants "bsd" instead of "newsos". Perhaps BFD should be changed, + I don't know.... */ + printf ("mips-sony-bsd\n"); exit (0); +#else +#include + printf ("m68k-sony-newsos%s\n", +#ifdef NEWSOS4 + "4" +#else + "" +#endif + ); exit (0); +#endif +#endif + +#if defined (__arm) && defined (__acorn) && defined (__unix) + printf ("arm-acorn-riscix\n"); exit (0); +#endif + +#if defined (hp300) && !defined (hpux) + printf ("m68k-hp-bsd\n"); exit (0); +#endif + +#if defined (NeXT) +#if !defined (__ARCHITECTURE__) +#define __ARCHITECTURE__ "m68k" +#endif + int version; + version=`(hostinfo | sed -n 's/.*NeXT Mach \([0-9]*\).*/\1/p') 2>/dev/null`; + if (version < 4) + printf ("%s-next-nextstep%d\n", __ARCHITECTURE__, version); + else + printf ("%s-next-openstep%d\n", __ARCHITECTURE__, version); + exit (0); +#endif + +#if defined (MULTIMAX) || defined (n16) +#if defined (UMAXV) + printf ("ns32k-encore-sysv\n"); exit (0); +#else +#if defined (CMU) + printf ("ns32k-encore-mach\n"); exit (0); +#else + printf ("ns32k-encore-bsd\n"); exit (0); +#endif +#endif +#endif + +#if defined (__386BSD__) + printf ("i386-pc-bsd\n"); exit (0); +#endif + +#if defined (sequent) +#if defined (i386) + printf ("i386-sequent-dynix\n"); exit (0); +#endif +#if defined (ns32000) + printf ("ns32k-sequent-dynix\n"); exit (0); +#endif +#endif + +#if defined (_SEQUENT_) + struct utsname un; + + uname(&un); + + if (strncmp(un.version, "V2", 2) == 0) { + printf ("i386-sequent-ptx2\n"); exit (0); + } + if (strncmp(un.version, "V1", 2) == 0) { /* XXX is V1 correct? */ + printf ("i386-sequent-ptx1\n"); exit (0); + } + printf ("i386-sequent-ptx\n"); exit (0); + +#endif + +#if defined (vax) +# if !defined (ultrix) +# include +# if defined (BSD) +# if BSD == 43 + printf ("vax-dec-bsd4.3\n"); exit (0); +# else +# if BSD == 199006 + printf ("vax-dec-bsd4.3reno\n"); exit (0); +# else + printf ("vax-dec-bsd\n"); exit (0); +# endif +# endif +# else + printf ("vax-dec-bsd\n"); exit (0); +# endif +# else + printf ("vax-dec-ultrix\n"); exit (0); +# endif +#endif + +#if defined (alliant) && defined (i860) + printf ("i860-alliant-bsd\n"); exit (0); +#endif + + exit (1); +} +EOF + +$CC_FOR_BUILD -o $dummy $dummy.c 2>/dev/null && SYSTEM_NAME=`$dummy` && + { echo "$SYSTEM_NAME"; exit; } + +# Apollos put the system type in the environment. + +test -d /usr/apollo && { echo ${ISP}-apollo-${SYSTYPE}; exit; } + +# Convex versions that predate uname can use getsysinfo(1) + +if [ -x /usr/convex/getsysinfo ] +then + case `getsysinfo -f cpu_type` in + c1*) + echo c1-convex-bsd + exit ;; + c2*) + if getsysinfo -f scalar_acc + then echo c32-convex-bsd + else echo c2-convex-bsd + fi + exit ;; + c34*) + echo c34-convex-bsd + exit ;; + c38*) + echo c38-convex-bsd + exit ;; + c4*) + echo c4-convex-bsd + exit ;; + esac +fi + +cat >&2 < in order to provide the needed +information to handle your system. + +config.guess timestamp = $timestamp + +uname -m = `(uname -m) 2>/dev/null || echo unknown` +uname -r = `(uname -r) 2>/dev/null || echo unknown` +uname -s = `(uname -s) 2>/dev/null || echo unknown` +uname -v = `(uname -v) 2>/dev/null || echo unknown` + +/usr/bin/uname -p = `(/usr/bin/uname -p) 2>/dev/null` +/bin/uname -X = `(/bin/uname -X) 2>/dev/null` + +hostinfo = `(hostinfo) 2>/dev/null` +/bin/universe = `(/bin/universe) 2>/dev/null` +/usr/bin/arch -k = `(/usr/bin/arch -k) 2>/dev/null` +/bin/arch = `(/bin/arch) 2>/dev/null` +/usr/bin/oslevel = `(/usr/bin/oslevel) 2>/dev/null` +/usr/convex/getsysinfo = `(/usr/convex/getsysinfo) 2>/dev/null` + +UNAME_MACHINE = ${UNAME_MACHINE} +UNAME_RELEASE = ${UNAME_RELEASE} +UNAME_SYSTEM = ${UNAME_SYSTEM} +UNAME_VERSION = ${UNAME_VERSION} +EOF + +exit 1 + +# Local variables: +# eval: (add-hook 'write-file-hooks 'time-stamp) +# time-stamp-start: "timestamp='" +# time-stamp-format: "%:y-%02m-%02d" +# time-stamp-end: "'" +# End: diff --git a/jpeg/config.sub b/jpeg/config.sub new file mode 100644 index 0000000..e76eaf4 --- /dev/null +++ b/jpeg/config.sub @@ -0,0 +1,1771 @@ +#! /bin/sh +# Configuration validation subroutine script. +# Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, +# 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, +# 2011 Free Software Foundation, Inc. + +timestamp='2011-11-11' + +# This file is (in principle) common to ALL GNU software. +# The presence of a machine in this file suggests that SOME GNU software +# can handle that machine. It does not imply ALL GNU software can. +# +# This file is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 2 of the License, or +# (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write to the Free Software +# Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA +# 02110-1301, USA. +# +# As a special exception to the GNU General Public License, if you +# distribute this file as part of a program that contains a +# configuration script generated by Autoconf, you may include it under +# the same distribution terms that you use for the rest of that program. + + +# Please send patches to . Submit a context +# diff and a properly formatted GNU ChangeLog entry. +# +# Configuration subroutine to validate and canonicalize a configuration type. +# Supply the specified configuration type as an argument. +# If it is invalid, we print an error message on stderr and exit with code 1. +# Otherwise, we print the canonical config type on stdout and succeed. + +# You can get the latest version of this script from: +# http://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.sub;hb=HEAD + +# This file is supposed to be the same for all GNU packages +# and recognize all the CPU types, system types and aliases +# that are meaningful with *any* GNU software. +# Each package is responsible for reporting which valid configurations +# it does not support. The user should be able to distinguish +# a failure to support a valid configuration from a meaningless +# configuration. + +# The goal of this file is to map all the various variations of a given +# machine specification into a single specification in the form: +# CPU_TYPE-MANUFACTURER-OPERATING_SYSTEM +# or in some cases, the newer four-part form: +# CPU_TYPE-MANUFACTURER-KERNEL-OPERATING_SYSTEM +# It is wrong to echo any other type of specification. + +me=`echo "$0" | sed -e 's,.*/,,'` + +usage="\ +Usage: $0 [OPTION] CPU-MFR-OPSYS + $0 [OPTION] ALIAS + +Canonicalize a configuration name. + +Operation modes: + -h, --help print this help, then exit + -t, --time-stamp print date of last modification, then exit + -v, --version print version number, then exit + +Report bugs and patches to ." + +version="\ +GNU config.sub ($timestamp) + +Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, +2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Free +Software Foundation, Inc. + +This is free software; see the source for copying conditions. There is NO +warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE." + +help=" +Try \`$me --help' for more information." + +# Parse command line +while test $# -gt 0 ; do + case $1 in + --time-stamp | --time* | -t ) + echo "$timestamp" ; exit ;; + --version | -v ) + echo "$version" ; exit ;; + --help | --h* | -h ) + echo "$usage"; exit ;; + -- ) # Stop option processing + shift; break ;; + - ) # Use stdin as input. + break ;; + -* ) + echo "$me: invalid option $1$help" + exit 1 ;; + + *local*) + # First pass through any local machine types. + echo $1 + exit ;; + + * ) + break ;; + esac +done + +case $# in + 0) echo "$me: missing argument$help" >&2 + exit 1;; + 1) ;; + *) echo "$me: too many arguments$help" >&2 + exit 1;; +esac + +# Separate what the user gave into CPU-COMPANY and OS or KERNEL-OS (if any). +# Here we must recognize all the valid KERNEL-OS combinations. +maybe_os=`echo $1 | sed 's/^\(.*\)-\([^-]*-[^-]*\)$/\2/'` +case $maybe_os in + nto-qnx* | linux-gnu* | linux-android* | linux-dietlibc | linux-newlib* | \ + linux-uclibc* | uclinux-uclibc* | uclinux-gnu* | kfreebsd*-gnu* | \ + knetbsd*-gnu* | netbsd*-gnu* | \ + kopensolaris*-gnu* | \ + storm-chaos* | os2-emx* | rtmk-nova*) + os=-$maybe_os + basic_machine=`echo $1 | sed 's/^\(.*\)-\([^-]*-[^-]*\)$/\1/'` + ;; + *) + basic_machine=`echo $1 | sed 's/-[^-]*$//'` + if [ $basic_machine != $1 ] + then os=`echo $1 | sed 's/.*-/-/'` + else os=; fi + ;; +esac + +### Let's recognize common machines as not being operating systems so +### that things like config.sub decstation-3100 work. We also +### recognize some manufacturers as not being operating systems, so we +### can provide default operating systems below. +case $os in + -sun*os*) + # Prevent following clause from handling this invalid input. + ;; + -dec* | -mips* | -sequent* | -encore* | -pc532* | -sgi* | -sony* | \ + -att* | -7300* | -3300* | -delta* | -motorola* | -sun[234]* | \ + -unicom* | -ibm* | -next | -hp | -isi* | -apollo | -altos* | \ + -convergent* | -ncr* | -news | -32* | -3600* | -3100* | -hitachi* |\ + -c[123]* | -convex* | -sun | -crds | -omron* | -dg | -ultra | -tti* | \ + -harris | -dolphin | -highlevel | -gould | -cbm | -ns | -masscomp | \ + -apple | -axis | -knuth | -cray | -microblaze) + os= + basic_machine=$1 + ;; + -bluegene*) + os=-cnk + ;; + -sim | -cisco | -oki | -wec | -winbond) + os= + basic_machine=$1 + ;; + -scout) + ;; + -wrs) + os=-vxworks + basic_machine=$1 + ;; + -chorusos*) + os=-chorusos + basic_machine=$1 + ;; + -chorusrdb) + os=-chorusrdb + basic_machine=$1 + ;; + -hiux*) + os=-hiuxwe2 + ;; + -sco6) + os=-sco5v6 + basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'` + ;; + -sco5) + os=-sco3.2v5 + basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'` + ;; + -sco4) + os=-sco3.2v4 + basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'` + ;; + -sco3.2.[4-9]*) + os=`echo $os | sed -e 's/sco3.2./sco3.2v/'` + basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'` + ;; + -sco3.2v[4-9]*) + # Don't forget version if it is 3.2v4 or newer. + basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'` + ;; + -sco5v6*) + # Don't forget version if it is 3.2v4 or newer. + basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'` + ;; + -sco*) + os=-sco3.2v2 + basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'` + ;; + -udk*) + basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'` + ;; + -isc) + os=-isc2.2 + basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'` + ;; + -clix*) + basic_machine=clipper-intergraph + ;; + -isc*) + basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'` + ;; + -lynx*) + os=-lynxos + ;; + -ptx*) + basic_machine=`echo $1 | sed -e 's/86-.*/86-sequent/'` + ;; + -windowsnt*) + os=`echo $os | sed -e 's/windowsnt/winnt/'` + ;; + -psos*) + os=-psos + ;; + -mint | -mint[0-9]*) + basic_machine=m68k-atari + os=-mint + ;; +esac + +# Decode aliases for certain CPU-COMPANY combinations. +case $basic_machine in + # Recognize the basic CPU types without company name. + # Some are omitted here because they have special meanings below. + 1750a | 580 \ + | a29k \ + | alpha | alphaev[4-8] | alphaev56 | alphaev6[78] | alphapca5[67] \ + | alpha64 | alpha64ev[4-8] | alpha64ev56 | alpha64ev6[78] | alpha64pca5[67] \ + | am33_2.0 \ + | arc | arm | arm[bl]e | arme[lb] | armv[2345] | armv[345][lb] | avr | avr32 \ + | be32 | be64 \ + | bfin \ + | c4x | clipper \ + | d10v | d30v | dlx | dsp16xx \ + | epiphany \ + | fido | fr30 | frv \ + | h8300 | h8500 | hppa | hppa1.[01] | hppa2.0 | hppa2.0[nw] | hppa64 \ + | hexagon \ + | i370 | i860 | i960 | ia64 \ + | ip2k | iq2000 \ + | le32 | le64 \ + | lm32 \ + | m32c | m32r | m32rle | m68000 | m68k | m88k \ + | maxq | mb | microblaze | mcore | mep | metag \ + | mips | mipsbe | mipseb | mipsel | mipsle \ + | mips16 \ + | mips64 | mips64el \ + | mips64octeon | mips64octeonel \ + | mips64orion | mips64orionel \ + | mips64r5900 | mips64r5900el \ + | mips64vr | mips64vrel \ + | mips64vr4100 | mips64vr4100el \ + | mips64vr4300 | mips64vr4300el \ + | mips64vr5000 | mips64vr5000el \ + | mips64vr5900 | mips64vr5900el \ + | mipsisa32 | mipsisa32el \ + | mipsisa32r2 | mipsisa32r2el \ + | mipsisa64 | mipsisa64el \ + | mipsisa64r2 | mipsisa64r2el \ + | mipsisa64sb1 | mipsisa64sb1el \ + | mipsisa64sr71k | mipsisa64sr71kel \ + | mipstx39 | mipstx39el \ + | mn10200 | mn10300 \ + | moxie \ + | mt \ + | msp430 \ + | nds32 | nds32le | nds32be \ + | nios | nios2 \ + | ns16k | ns32k \ + | open8 \ + | or32 \ + | pdp10 | pdp11 | pj | pjl \ + | powerpc | powerpc64 | powerpc64le | powerpcle \ + | pyramid \ + | rl78 | rx \ + | score \ + | sh | sh[1234] | sh[24]a | sh[24]aeb | sh[23]e | sh[34]eb | sheb | shbe | shle | sh[1234]le | sh3ele \ + | sh64 | sh64le \ + | sparc | sparc64 | sparc64b | sparc64v | sparc86x | sparclet | sparclite \ + | sparcv8 | sparcv9 | sparcv9b | sparcv9v \ + | spu \ + | tahoe | tic4x | tic54x | tic55x | tic6x | tic80 | tron \ + | ubicom32 \ + | v850 | v850e | v850e1 | v850e2 | v850es | v850e2v3 \ + | we32k \ + | x86 | xc16x | xstormy16 | xtensa \ + | z8k | z80) + basic_machine=$basic_machine-unknown + ;; + c54x) + basic_machine=tic54x-unknown + ;; + c55x) + basic_machine=tic55x-unknown + ;; + c6x) + basic_machine=tic6x-unknown + ;; + m6811 | m68hc11 | m6812 | m68hc12 | picochip) + # Motorola 68HC11/12. + basic_machine=$basic_machine-unknown + os=-none + ;; + m88110 | m680[12346]0 | m683?2 | m68360 | m5200 | v70 | w65 | z8k) + ;; + ms1) + basic_machine=mt-unknown + ;; + + strongarm | thumb | xscale) + basic_machine=arm-unknown + ;; + + xscaleeb) + basic_machine=armeb-unknown + ;; + + xscaleel) + basic_machine=armel-unknown + ;; + + # We use `pc' rather than `unknown' + # because (1) that's what they normally are, and + # (2) the word "unknown" tends to confuse beginning users. + i*86 | x86_64) + basic_machine=$basic_machine-pc + ;; + # Object if more than one company name word. + *-*-*) + echo Invalid configuration \`$1\': machine \`$basic_machine\' not recognized 1>&2 + exit 1 + ;; + # Recognize the basic CPU types with company name. + 580-* \ + | a29k-* \ + | alpha-* | alphaev[4-8]-* | alphaev56-* | alphaev6[78]-* \ + | alpha64-* | alpha64ev[4-8]-* | alpha64ev56-* | alpha64ev6[78]-* \ + | alphapca5[67]-* | alpha64pca5[67]-* | arc-* \ + | arm-* | armbe-* | armle-* | armeb-* | armv*-* \ + | avr-* | avr32-* \ + | be32-* | be64-* \ + | bfin-* | bs2000-* \ + | c[123]* | c30-* | [cjt]90-* | c4x-* \ + | clipper-* | craynv-* | cydra-* \ + | d10v-* | d30v-* | dlx-* \ + | elxsi-* \ + | f30[01]-* | f700-* | fido-* | fr30-* | frv-* | fx80-* \ + | h8300-* | h8500-* \ + | hppa-* | hppa1.[01]-* | hppa2.0-* | hppa2.0[nw]-* | hppa64-* \ + | hexagon-* \ + | i*86-* | i860-* | i960-* | ia64-* \ + | ip2k-* | iq2000-* \ + | le32-* | le64-* \ + | lm32-* \ + | m32c-* | m32r-* | m32rle-* \ + | m68000-* | m680[012346]0-* | m68360-* | m683?2-* | m68k-* \ + | m88110-* | m88k-* | maxq-* | mcore-* | metag-* | microblaze-* \ + | mips-* | mipsbe-* | mipseb-* | mipsel-* | mipsle-* \ + | mips16-* \ + | mips64-* | mips64el-* \ + | mips64octeon-* | mips64octeonel-* \ + | mips64orion-* | mips64orionel-* \ + | mips64r5900-* | mips64r5900el-* \ + | mips64vr-* | mips64vrel-* \ + | mips64vr4100-* | mips64vr4100el-* \ + | mips64vr4300-* | mips64vr4300el-* \ + | mips64vr5000-* | mips64vr5000el-* \ + | mips64vr5900-* | mips64vr5900el-* \ + | mipsisa32-* | mipsisa32el-* \ + | mipsisa32r2-* | mipsisa32r2el-* \ + | mipsisa64-* | mipsisa64el-* \ + | mipsisa64r2-* | mipsisa64r2el-* \ + | mipsisa64sb1-* | mipsisa64sb1el-* \ + | mipsisa64sr71k-* | mipsisa64sr71kel-* \ + | mipstx39-* | mipstx39el-* \ + | mmix-* \ + | mt-* \ + | msp430-* \ + | nds32-* | nds32le-* | nds32be-* \ + | nios-* | nios2-* \ + | none-* | np1-* | ns16k-* | ns32k-* \ + | open8-* \ + | orion-* \ + | pdp10-* | pdp11-* | pj-* | pjl-* | pn-* | power-* \ + | powerpc-* | powerpc64-* | powerpc64le-* | powerpcle-* \ + | pyramid-* \ + | rl78-* | romp-* | rs6000-* | rx-* \ + | sh-* | sh[1234]-* | sh[24]a-* | sh[24]aeb-* | sh[23]e-* | sh[34]eb-* | sheb-* | shbe-* \ + | shle-* | sh[1234]le-* | sh3ele-* | sh64-* | sh64le-* \ + | sparc-* | sparc64-* | sparc64b-* | sparc64v-* | sparc86x-* | sparclet-* \ + | sparclite-* \ + | sparcv8-* | sparcv9-* | sparcv9b-* | sparcv9v-* | sv1-* | sx?-* \ + | tahoe-* \ + | tic30-* | tic4x-* | tic54x-* | tic55x-* | tic6x-* | tic80-* \ + | tile*-* \ + | tron-* \ + | ubicom32-* \ + | v850-* | v850e-* | v850e1-* | v850es-* | v850e2-* | v850e2v3-* \ + | vax-* \ + | we32k-* \ + | x86-* | x86_64-* | xc16x-* | xps100-* \ + | xstormy16-* | xtensa*-* \ + | ymp-* \ + | z8k-* | z80-*) + ;; + # Recognize the basic CPU types without company name, with glob match. + xtensa*) + basic_machine=$basic_machine-unknown + ;; + # Recognize the various machine names and aliases which stand + # for a CPU type and a company and sometimes even an OS. + 386bsd) + basic_machine=i386-unknown + os=-bsd + ;; + 3b1 | 7300 | 7300-att | att-7300 | pc7300 | safari | unixpc) + basic_machine=m68000-att + ;; + 3b*) + basic_machine=we32k-att + ;; + a29khif) + basic_machine=a29k-amd + os=-udi + ;; + abacus) + basic_machine=abacus-unknown + ;; + adobe68k) + basic_machine=m68010-adobe + os=-scout + ;; + alliant | fx80) + basic_machine=fx80-alliant + ;; + altos | altos3068) + basic_machine=m68k-altos + ;; + am29k) + basic_machine=a29k-none + os=-bsd + ;; + amd64) + basic_machine=x86_64-pc + ;; + amd64-*) + basic_machine=x86_64-`echo $basic_machine | sed 's/^[^-]*-//'` + ;; + amdahl) + basic_machine=580-amdahl + os=-sysv + ;; + amiga | amiga-*) + basic_machine=m68k-unknown + ;; + amigaos | amigados) + basic_machine=m68k-unknown + os=-amigaos + ;; + amigaunix | amix) + basic_machine=m68k-unknown + os=-sysv4 + ;; + apollo68) + basic_machine=m68k-apollo + os=-sysv + ;; + apollo68bsd) + basic_machine=m68k-apollo + os=-bsd + ;; + aros) + basic_machine=i386-pc + os=-aros + ;; + aux) + basic_machine=m68k-apple + os=-aux + ;; + balance) + basic_machine=ns32k-sequent + os=-dynix + ;; + blackfin) + basic_machine=bfin-unknown + os=-linux + ;; + blackfin-*) + basic_machine=bfin-`echo $basic_machine | sed 's/^[^-]*-//'` + os=-linux + ;; + bluegene*) + basic_machine=powerpc-ibm + os=-cnk + ;; + c54x-*) + basic_machine=tic54x-`echo $basic_machine | sed 's/^[^-]*-//'` + ;; + c55x-*) + basic_machine=tic55x-`echo $basic_machine | sed 's/^[^-]*-//'` + ;; + c6x-*) + basic_machine=tic6x-`echo $basic_machine | sed 's/^[^-]*-//'` + ;; + c90) + basic_machine=c90-cray + os=-unicos + ;; + cegcc) + basic_machine=arm-unknown + os=-cegcc + ;; + convex-c1) + basic_machine=c1-convex + os=-bsd + ;; + convex-c2) + basic_machine=c2-convex + os=-bsd + ;; + convex-c32) + basic_machine=c32-convex + os=-bsd + ;; + convex-c34) + basic_machine=c34-convex + os=-bsd + ;; + convex-c38) + basic_machine=c38-convex + os=-bsd + ;; + cray | j90) + basic_machine=j90-cray + os=-unicos + ;; + craynv) + basic_machine=craynv-cray + os=-unicosmp + ;; + cr16 | cr16-*) + basic_machine=cr16-unknown + os=-elf + ;; + crds | unos) + basic_machine=m68k-crds + ;; + crisv32 | crisv32-* | etraxfs*) + basic_machine=crisv32-axis + ;; + cris | cris-* | etrax*) + basic_machine=cris-axis + ;; + crx) + basic_machine=crx-unknown + os=-elf + ;; + da30 | da30-*) + basic_machine=m68k-da30 + ;; + decstation | decstation-3100 | pmax | pmax-* | pmin | dec3100 | decstatn) + basic_machine=mips-dec + ;; + decsystem10* | dec10*) + basic_machine=pdp10-dec + os=-tops10 + ;; + decsystem20* | dec20*) + basic_machine=pdp10-dec + os=-tops20 + ;; + delta | 3300 | motorola-3300 | motorola-delta \ + | 3300-motorola | delta-motorola) + basic_machine=m68k-motorola + ;; + delta88) + basic_machine=m88k-motorola + os=-sysv3 + ;; + dicos) + basic_machine=i686-pc + os=-dicos + ;; + djgpp) + basic_machine=i586-pc + os=-msdosdjgpp + ;; + dpx20 | dpx20-*) + basic_machine=rs6000-bull + os=-bosx + ;; + dpx2* | dpx2*-bull) + basic_machine=m68k-bull + os=-sysv3 + ;; + ebmon29k) + basic_machine=a29k-amd + os=-ebmon + ;; + elxsi) + basic_machine=elxsi-elxsi + os=-bsd + ;; + encore | umax | mmax) + basic_machine=ns32k-encore + ;; + es1800 | OSE68k | ose68k | ose | OSE) + basic_machine=m68k-ericsson + os=-ose + ;; + fx2800) + basic_machine=i860-alliant + ;; + genix) + basic_machine=ns32k-ns + ;; + gmicro) + basic_machine=tron-gmicro + os=-sysv + ;; + go32) + basic_machine=i386-pc + os=-go32 + ;; + h3050r* | hiux*) + basic_machine=hppa1.1-hitachi + os=-hiuxwe2 + ;; + h8300hms) + basic_machine=h8300-hitachi + os=-hms + ;; + h8300xray) + basic_machine=h8300-hitachi + os=-xray + ;; + h8500hms) + basic_machine=h8500-hitachi + os=-hms + ;; + harris) + basic_machine=m88k-harris + os=-sysv3 + ;; + hp300-*) + basic_machine=m68k-hp + ;; + hp300bsd) + basic_machine=m68k-hp + os=-bsd + ;; + hp300hpux) + basic_machine=m68k-hp + os=-hpux + ;; + hp3k9[0-9][0-9] | hp9[0-9][0-9]) + basic_machine=hppa1.0-hp + ;; + hp9k2[0-9][0-9] | hp9k31[0-9]) + basic_machine=m68000-hp + ;; + hp9k3[2-9][0-9]) + basic_machine=m68k-hp + ;; + hp9k6[0-9][0-9] | hp6[0-9][0-9]) + basic_machine=hppa1.0-hp + ;; + hp9k7[0-79][0-9] | hp7[0-79][0-9]) + basic_machine=hppa1.1-hp + ;; + hp9k78[0-9] | hp78[0-9]) + # FIXME: really hppa2.0-hp + basic_machine=hppa1.1-hp + ;; + hp9k8[67]1 | hp8[67]1 | hp9k80[24] | hp80[24] | hp9k8[78]9 | hp8[78]9 | hp9k893 | hp893) + # FIXME: really hppa2.0-hp + basic_machine=hppa1.1-hp + ;; + hp9k8[0-9][13679] | hp8[0-9][13679]) + basic_machine=hppa1.1-hp + ;; + hp9k8[0-9][0-9] | hp8[0-9][0-9]) + basic_machine=hppa1.0-hp + ;; + hppa-next) + os=-nextstep3 + ;; + hppaosf) + basic_machine=hppa1.1-hp + os=-osf + ;; + hppro) + basic_machine=hppa1.1-hp + os=-proelf + ;; + i370-ibm* | ibm*) + basic_machine=i370-ibm + ;; +# I'm not sure what "Sysv32" means. Should this be sysv3.2? + i*86v32) + basic_machine=`echo $1 | sed -e 's/86.*/86-pc/'` + os=-sysv32 + ;; + i*86v4*) + basic_machine=`echo $1 | sed -e 's/86.*/86-pc/'` + os=-sysv4 + ;; + i*86v) + basic_machine=`echo $1 | sed -e 's/86.*/86-pc/'` + os=-sysv + ;; + i*86sol2) + basic_machine=`echo $1 | sed -e 's/86.*/86-pc/'` + os=-solaris2 + ;; + i386mach) + basic_machine=i386-mach + os=-mach + ;; + i386-vsta | vsta) + basic_machine=i386-unknown + os=-vsta + ;; + iris | iris4d) + basic_machine=mips-sgi + case $os in + -irix*) + ;; + *) + os=-irix4 + ;; + esac + ;; + isi68 | isi) + basic_machine=m68k-isi + os=-sysv + ;; + m68knommu) + basic_machine=m68k-unknown + os=-linux + ;; + m68knommu-*) + basic_machine=m68k-`echo $basic_machine | sed 's/^[^-]*-//'` + os=-linux + ;; + m88k-omron*) + basic_machine=m88k-omron + ;; + magnum | m3230) + basic_machine=mips-mips + os=-sysv + ;; + merlin) + basic_machine=ns32k-utek + os=-sysv + ;; + microblaze) + basic_machine=microblaze-xilinx + ;; + mingw32) + basic_machine=i386-pc + os=-mingw32 + ;; + mingw32ce) + basic_machine=arm-unknown + os=-mingw32ce + ;; + miniframe) + basic_machine=m68000-convergent + ;; + *mint | -mint[0-9]* | *MiNT | *MiNT[0-9]*) + basic_machine=m68k-atari + os=-mint + ;; + mips3*-*) + basic_machine=`echo $basic_machine | sed -e 's/mips3/mips64/'` + ;; + mips3*) + basic_machine=`echo $basic_machine | sed -e 's/mips3/mips64/'`-unknown + ;; + monitor) + basic_machine=m68k-rom68k + os=-coff + ;; + morphos) + basic_machine=powerpc-unknown + os=-morphos + ;; + msdos) + basic_machine=i386-pc + os=-msdos + ;; + ms1-*) + basic_machine=`echo $basic_machine | sed -e 's/ms1-/mt-/'` + ;; + msys) + basic_machine=i386-pc + os=-msys + ;; + mvs) + basic_machine=i370-ibm + os=-mvs + ;; + nacl) + basic_machine=le32-unknown + os=-nacl + ;; + ncr3000) + basic_machine=i486-ncr + os=-sysv4 + ;; + netbsd386) + basic_machine=i386-unknown + os=-netbsd + ;; + netwinder) + basic_machine=armv4l-rebel + os=-linux + ;; + news | news700 | news800 | news900) + basic_machine=m68k-sony + os=-newsos + ;; + news1000) + basic_machine=m68030-sony + os=-newsos + ;; + news-3600 | risc-news) + basic_machine=mips-sony + os=-newsos + ;; + necv70) + basic_machine=v70-nec + os=-sysv + ;; + next | m*-next ) + basic_machine=m68k-next + case $os in + -nextstep* ) + ;; + -ns2*) + os=-nextstep2 + ;; + *) + os=-nextstep3 + ;; + esac + ;; + nh3000) + basic_machine=m68k-harris + os=-cxux + ;; + nh[45]000) + basic_machine=m88k-harris + os=-cxux + ;; + nindy960) + basic_machine=i960-intel + os=-nindy + ;; + mon960) + basic_machine=i960-intel + os=-mon960 + ;; + nonstopux) + basic_machine=mips-compaq + os=-nonstopux + ;; + np1) + basic_machine=np1-gould + ;; + neo-tandem) + basic_machine=neo-tandem + ;; + nse-tandem) + basic_machine=nse-tandem + ;; + nsr-tandem) + basic_machine=nsr-tandem + ;; + op50n-* | op60c-*) + basic_machine=hppa1.1-oki + os=-proelf + ;; + openrisc | openrisc-*) + basic_machine=or32-unknown + ;; + os400) + basic_machine=powerpc-ibm + os=-os400 + ;; + OSE68000 | ose68000) + basic_machine=m68000-ericsson + os=-ose + ;; + os68k) + basic_machine=m68k-none + os=-os68k + ;; + pa-hitachi) + basic_machine=hppa1.1-hitachi + os=-hiuxwe2 + ;; + paragon) + basic_machine=i860-intel + os=-osf + ;; + parisc) + basic_machine=hppa-unknown + os=-linux + ;; + parisc-*) + basic_machine=hppa-`echo $basic_machine | sed 's/^[^-]*-//'` + os=-linux + ;; + pbd) + basic_machine=sparc-tti + ;; + pbb) + basic_machine=m68k-tti + ;; + pc532 | pc532-*) + basic_machine=ns32k-pc532 + ;; + pc98) + basic_machine=i386-pc + ;; + pc98-*) + basic_machine=i386-`echo $basic_machine | sed 's/^[^-]*-//'` + ;; + pentium | p5 | k5 | k6 | nexgen | viac3) + basic_machine=i586-pc + ;; + pentiumpro | p6 | 6x86 | athlon | athlon_*) + basic_machine=i686-pc + ;; + pentiumii | pentium2 | pentiumiii | pentium3) + basic_machine=i686-pc + ;; + pentium4) + basic_machine=i786-pc + ;; + pentium-* | p5-* | k5-* | k6-* | nexgen-* | viac3-*) + basic_machine=i586-`echo $basic_machine | sed 's/^[^-]*-//'` + ;; + pentiumpro-* | p6-* | 6x86-* | athlon-*) + basic_machine=i686-`echo $basic_machine | sed 's/^[^-]*-//'` + ;; + pentiumii-* | pentium2-* | pentiumiii-* | pentium3-*) + basic_machine=i686-`echo $basic_machine | sed 's/^[^-]*-//'` + ;; + pentium4-*) + basic_machine=i786-`echo $basic_machine | sed 's/^[^-]*-//'` + ;; + pn) + basic_machine=pn-gould + ;; + power) basic_machine=power-ibm + ;; + ppc | ppcbe) basic_machine=powerpc-unknown + ;; + ppc-* | ppcbe-*) + basic_machine=powerpc-`echo $basic_machine | sed 's/^[^-]*-//'` + ;; + ppcle | powerpclittle | ppc-le | powerpc-little) + basic_machine=powerpcle-unknown + ;; + ppcle-* | powerpclittle-*) + basic_machine=powerpcle-`echo $basic_machine | sed 's/^[^-]*-//'` + ;; + ppc64) basic_machine=powerpc64-unknown + ;; + ppc64-*) basic_machine=powerpc64-`echo $basic_machine | sed 's/^[^-]*-//'` + ;; + ppc64le | powerpc64little | ppc64-le | powerpc64-little) + basic_machine=powerpc64le-unknown + ;; + ppc64le-* | powerpc64little-*) + basic_machine=powerpc64le-`echo $basic_machine | sed 's/^[^-]*-//'` + ;; + ps2) + basic_machine=i386-ibm + ;; + pw32) + basic_machine=i586-unknown + os=-pw32 + ;; + rdos) + basic_machine=i386-pc + os=-rdos + ;; + rom68k) + basic_machine=m68k-rom68k + os=-coff + ;; + rm[46]00) + basic_machine=mips-siemens + ;; + rtpc | rtpc-*) + basic_machine=romp-ibm + ;; + s390 | s390-*) + basic_machine=s390-ibm + ;; + s390x | s390x-*) + basic_machine=s390x-ibm + ;; + sa29200) + basic_machine=a29k-amd + os=-udi + ;; + sb1) + basic_machine=mipsisa64sb1-unknown + ;; + sb1el) + basic_machine=mipsisa64sb1el-unknown + ;; + sde) + basic_machine=mipsisa32-sde + os=-elf + ;; + sei) + basic_machine=mips-sei + os=-seiux + ;; + sequent) + basic_machine=i386-sequent + ;; + sh) + basic_machine=sh-hitachi + os=-hms + ;; + sh5el) + basic_machine=sh5le-unknown + ;; + sh64) + basic_machine=sh64-unknown + ;; + sparclite-wrs | simso-wrs) + basic_machine=sparclite-wrs + os=-vxworks + ;; + sps7) + basic_machine=m68k-bull + os=-sysv2 + ;; + spur) + basic_machine=spur-unknown + ;; + st2000) + basic_machine=m68k-tandem + ;; + stratus) + basic_machine=i860-stratus + os=-sysv4 + ;; + strongarm-* | thumb-*) + basic_machine=arm-`echo $basic_machine | sed 's/^[^-]*-//'` + ;; + sun2) + basic_machine=m68000-sun + ;; + sun2os3) + basic_machine=m68000-sun + os=-sunos3 + ;; + sun2os4) + basic_machine=m68000-sun + os=-sunos4 + ;; + sun3os3) + basic_machine=m68k-sun + os=-sunos3 + ;; + sun3os4) + basic_machine=m68k-sun + os=-sunos4 + ;; + sun4os3) + basic_machine=sparc-sun + os=-sunos3 + ;; + sun4os4) + basic_machine=sparc-sun + os=-sunos4 + ;; + sun4sol2) + basic_machine=sparc-sun + os=-solaris2 + ;; + sun3 | sun3-*) + basic_machine=m68k-sun + ;; + sun4) + basic_machine=sparc-sun + ;; + sun386 | sun386i | roadrunner) + basic_machine=i386-sun + ;; + sv1) + basic_machine=sv1-cray + os=-unicos + ;; + symmetry) + basic_machine=i386-sequent + os=-dynix + ;; + t3e) + basic_machine=alphaev5-cray + os=-unicos + ;; + t90) + basic_machine=t90-cray + os=-unicos + ;; + tile*) + basic_machine=$basic_machine-unknown + os=-linux-gnu + ;; + tx39) + basic_machine=mipstx39-unknown + ;; + tx39el) + basic_machine=mipstx39el-unknown + ;; + toad1) + basic_machine=pdp10-xkl + os=-tops20 + ;; + tower | tower-32) + basic_machine=m68k-ncr + ;; + tpf) + basic_machine=s390x-ibm + os=-tpf + ;; + udi29k) + basic_machine=a29k-amd + os=-udi + ;; + ultra3) + basic_machine=a29k-nyu + os=-sym1 + ;; + v810 | necv810) + basic_machine=v810-nec + os=-none + ;; + vaxv) + basic_machine=vax-dec + os=-sysv + ;; + vms) + basic_machine=vax-dec + os=-vms + ;; + vpp*|vx|vx-*) + basic_machine=f301-fujitsu + ;; + vxworks960) + basic_machine=i960-wrs + os=-vxworks + ;; + vxworks68) + basic_machine=m68k-wrs + os=-vxworks + ;; + vxworks29k) + basic_machine=a29k-wrs + os=-vxworks + ;; + w65*) + basic_machine=w65-wdc + os=-none + ;; + w89k-*) + basic_machine=hppa1.1-winbond + os=-proelf + ;; + xbox) + basic_machine=i686-pc + os=-mingw32 + ;; + xps | xps100) + basic_machine=xps100-honeywell + ;; + xscale-* | xscalee[bl]-*) + basic_machine=`echo $basic_machine | sed 's/^xscale/arm/'` + ;; + ymp) + basic_machine=ymp-cray + os=-unicos + ;; + z8k-*-coff) + basic_machine=z8k-unknown + os=-sim + ;; + z80-*-coff) + basic_machine=z80-unknown + os=-sim + ;; + none) + basic_machine=none-none + os=-none + ;; + +# Here we handle the default manufacturer of certain CPU types. It is in +# some cases the only manufacturer, in others, it is the most popular. + w89k) + basic_machine=hppa1.1-winbond + ;; + op50n) + basic_machine=hppa1.1-oki + ;; + op60c) + basic_machine=hppa1.1-oki + ;; + romp) + basic_machine=romp-ibm + ;; + mmix) + basic_machine=mmix-knuth + ;; + rs6000) + basic_machine=rs6000-ibm + ;; + vax) + basic_machine=vax-dec + ;; + pdp10) + # there are many clones, so DEC is not a safe bet + basic_machine=pdp10-unknown + ;; + pdp11) + basic_machine=pdp11-dec + ;; + we32k) + basic_machine=we32k-att + ;; + sh[1234] | sh[24]a | sh[24]aeb | sh[34]eb | sh[1234]le | sh[23]ele) + basic_machine=sh-unknown + ;; + sparc | sparcv8 | sparcv9 | sparcv9b | sparcv9v) + basic_machine=sparc-sun + ;; + cydra) + basic_machine=cydra-cydrome + ;; + orion) + basic_machine=orion-highlevel + ;; + orion105) + basic_machine=clipper-highlevel + ;; + mac | mpw | mac-mpw) + basic_machine=m68k-apple + ;; + pmac | pmac-mpw) + basic_machine=powerpc-apple + ;; + *-unknown) + # Make sure to match an already-canonicalized machine name. + ;; + *) + echo Invalid configuration \`$1\': machine \`$basic_machine\' not recognized 1>&2 + exit 1 + ;; +esac + +# Here we canonicalize certain aliases for manufacturers. +case $basic_machine in + *-digital*) + basic_machine=`echo $basic_machine | sed 's/digital.*/dec/'` + ;; + *-commodore*) + basic_machine=`echo $basic_machine | sed 's/commodore.*/cbm/'` + ;; + *) + ;; +esac + +# Decode manufacturer-specific aliases for certain operating systems. + +if [ x"$os" != x"" ] +then +case $os in + # First match some system type aliases + # that might get confused with valid system types. + # -solaris* is a basic system type, with this one exception. + -auroraux) + os=-auroraux + ;; + -solaris1 | -solaris1.*) + os=`echo $os | sed -e 's|solaris1|sunos4|'` + ;; + -solaris) + os=-solaris2 + ;; + -svr4*) + os=-sysv4 + ;; + -unixware*) + os=-sysv4.2uw + ;; + -gnu/linux*) + os=`echo $os | sed -e 's|gnu/linux|linux-gnu|'` + ;; + # First accept the basic system types. + # The portable systems comes first. + # Each alternative MUST END IN A *, to match a version number. + # -sysv* is not here because it comes later, after sysvr4. + -gnu* | -bsd* | -mach* | -minix* | -genix* | -ultrix* | -irix* \ + | -*vms* | -sco* | -esix* | -isc* | -aix* | -cnk* | -sunos | -sunos[34]*\ + | -hpux* | -unos* | -osf* | -luna* | -dgux* | -auroraux* | -solaris* \ + | -sym* | -kopensolaris* \ + | -amigaos* | -amigados* | -msdos* | -newsos* | -unicos* | -aof* \ + | -aos* | -aros* \ + | -nindy* | -vxsim* | -vxworks* | -ebmon* | -hms* | -mvs* \ + | -clix* | -riscos* | -uniplus* | -iris* | -rtu* | -xenix* \ + | -hiux* | -386bsd* | -knetbsd* | -mirbsd* | -netbsd* \ + | -openbsd* | -solidbsd* \ + | -ekkobsd* | -kfreebsd* | -freebsd* | -riscix* | -lynxos* \ + | -bosx* | -nextstep* | -cxux* | -aout* | -elf* | -oabi* \ + | -ptx* | -coff* | -ecoff* | -winnt* | -domain* | -vsta* \ + | -udi* | -eabi* | -lites* | -ieee* | -go32* | -aux* \ + | -chorusos* | -chorusrdb* | -cegcc* \ + | -cygwin* | -msys* | -pe* | -psos* | -moss* | -proelf* | -rtems* \ + | -mingw32* | -linux-gnu* | -linux-android* \ + | -linux-newlib* | -linux-uclibc* \ + | -uxpv* | -beos* | -mpeix* | -udk* \ + | -interix* | -uwin* | -mks* | -rhapsody* | -darwin* | -opened* \ + | -openstep* | -oskit* | -conix* | -pw32* | -nonstopux* \ + | -storm-chaos* | -tops10* | -tenex* | -tops20* | -its* \ + | -os2* | -vos* | -palmos* | -uclinux* | -nucleus* \ + | -morphos* | -superux* | -rtmk* | -rtmk-nova* | -windiss* \ + | -powermax* | -dnix* | -nx6 | -nx7 | -sei* | -dragonfly* \ + | -skyos* | -haiku* | -rdos* | -toppers* | -drops* | -es*) + # Remember, each alternative MUST END IN *, to match a version number. + ;; + -qnx*) + case $basic_machine in + x86-* | i*86-*) + ;; + *) + os=-nto$os + ;; + esac + ;; + -nto-qnx*) + ;; + -nto*) + os=`echo $os | sed -e 's|nto|nto-qnx|'` + ;; + -sim | -es1800* | -hms* | -xray | -os68k* | -none* | -v88r* \ + | -windows* | -osx | -abug | -netware* | -os9* | -beos* | -haiku* \ + | -macos* | -mpw* | -magic* | -mmixware* | -mon960* | -lnews*) + ;; + -mac*) + os=`echo $os | sed -e 's|mac|macos|'` + ;; + -linux-dietlibc) + os=-linux-dietlibc + ;; + -linux*) + os=`echo $os | sed -e 's|linux|linux-gnu|'` + ;; + -sunos5*) + os=`echo $os | sed -e 's|sunos5|solaris2|'` + ;; + -sunos6*) + os=`echo $os | sed -e 's|sunos6|solaris3|'` + ;; + -opened*) + os=-openedition + ;; + -os400*) + os=-os400 + ;; + -wince*) + os=-wince + ;; + -osfrose*) + os=-osfrose + ;; + -osf*) + os=-osf + ;; + -utek*) + os=-bsd + ;; + -dynix*) + os=-bsd + ;; + -acis*) + os=-aos + ;; + -atheos*) + os=-atheos + ;; + -syllable*) + os=-syllable + ;; + -386bsd) + os=-bsd + ;; + -ctix* | -uts*) + os=-sysv + ;; + -nova*) + os=-rtmk-nova + ;; + -ns2 ) + os=-nextstep2 + ;; + -nsk*) + os=-nsk + ;; + # Preserve the version number of sinix5. + -sinix5.*) + os=`echo $os | sed -e 's|sinix|sysv|'` + ;; + -sinix*) + os=-sysv4 + ;; + -tpf*) + os=-tpf + ;; + -triton*) + os=-sysv3 + ;; + -oss*) + os=-sysv3 + ;; + -svr4) + os=-sysv4 + ;; + -svr3) + os=-sysv3 + ;; + -sysvr4) + os=-sysv4 + ;; + # This must come after -sysvr4. + -sysv*) + ;; + -ose*) + os=-ose + ;; + -es1800*) + os=-ose + ;; + -xenix) + os=-xenix + ;; + -*mint | -mint[0-9]* | -*MiNT | -MiNT[0-9]*) + os=-mint + ;; + -aros*) + os=-aros + ;; + -kaos*) + os=-kaos + ;; + -zvmoe) + os=-zvmoe + ;; + -dicos*) + os=-dicos + ;; + -nacl*) + ;; + -none) + ;; + *) + # Get rid of the `-' at the beginning of $os. + os=`echo $os | sed 's/[^-]*-//'` + echo Invalid configuration \`$1\': system \`$os\' not recognized 1>&2 + exit 1 + ;; +esac +else + +# Here we handle the default operating systems that come with various machines. +# The value should be what the vendor currently ships out the door with their +# machine or put another way, the most popular os provided with the machine. + +# Note that if you're going to try to match "-MANUFACTURER" here (say, +# "-sun"), then you have to tell the case statement up towards the top +# that MANUFACTURER isn't an operating system. Otherwise, code above +# will signal an error saying that MANUFACTURER isn't an operating +# system, and we'll never get to this point. + +case $basic_machine in + score-*) + os=-elf + ;; + spu-*) + os=-elf + ;; + *-acorn) + os=-riscix1.2 + ;; + arm*-rebel) + os=-linux + ;; + arm*-semi) + os=-aout + ;; + c4x-* | tic4x-*) + os=-coff + ;; + tic54x-*) + os=-coff + ;; + tic55x-*) + os=-coff + ;; + tic6x-*) + os=-coff + ;; + # This must come before the *-dec entry. + pdp10-*) + os=-tops20 + ;; + pdp11-*) + os=-none + ;; + *-dec | vax-*) + os=-ultrix4.2 + ;; + m68*-apollo) + os=-domain + ;; + i386-sun) + os=-sunos4.0.2 + ;; + m68000-sun) + os=-sunos3 + # This also exists in the configure program, but was not the + # default. + # os=-sunos4 + ;; + m68*-cisco) + os=-aout + ;; + mep-*) + os=-elf + ;; + mips*-cisco) + os=-elf + ;; + mips*-*) + os=-elf + ;; + or32-*) + os=-coff + ;; + *-tti) # must be before sparc entry or we get the wrong os. + os=-sysv3 + ;; + sparc-* | *-sun) + os=-sunos4.1.1 + ;; + *-be) + os=-beos + ;; + *-haiku) + os=-haiku + ;; + *-ibm) + os=-aix + ;; + *-knuth) + os=-mmixware + ;; + *-wec) + os=-proelf + ;; + *-winbond) + os=-proelf + ;; + *-oki) + os=-proelf + ;; + *-hp) + os=-hpux + ;; + *-hitachi) + os=-hiux + ;; + i860-* | *-att | *-ncr | *-altos | *-motorola | *-convergent) + os=-sysv + ;; + *-cbm) + os=-amigaos + ;; + *-dg) + os=-dgux + ;; + *-dolphin) + os=-sysv3 + ;; + m68k-ccur) + os=-rtu + ;; + m88k-omron*) + os=-luna + ;; + *-next ) + os=-nextstep + ;; + *-sequent) + os=-ptx + ;; + *-crds) + os=-unos + ;; + *-ns) + os=-genix + ;; + i370-*) + os=-mvs + ;; + *-next) + os=-nextstep3 + ;; + *-gould) + os=-sysv + ;; + *-highlevel) + os=-bsd + ;; + *-encore) + os=-bsd + ;; + *-sgi) + os=-irix + ;; + *-siemens) + os=-sysv4 + ;; + *-masscomp) + os=-rtu + ;; + f30[01]-fujitsu | f700-fujitsu) + os=-uxpv + ;; + *-rom68k) + os=-coff + ;; + *-*bug) + os=-coff + ;; + *-apple) + os=-macos + ;; + *-atari*) + os=-mint + ;; + *) + os=-none + ;; +esac +fi + +# Here we handle the case where we know the os, and the CPU type, but not the +# manufacturer. We pick the logical manufacturer. +vendor=unknown +case $basic_machine in + *-unknown) + case $os in + -riscix*) + vendor=acorn + ;; + -sunos*) + vendor=sun + ;; + -cnk*|-aix*) + vendor=ibm + ;; + -beos*) + vendor=be + ;; + -hpux*) + vendor=hp + ;; + -mpeix*) + vendor=hp + ;; + -hiux*) + vendor=hitachi + ;; + -unos*) + vendor=crds + ;; + -dgux*) + vendor=dg + ;; + -luna*) + vendor=omron + ;; + -genix*) + vendor=ns + ;; + -mvs* | -opened*) + vendor=ibm + ;; + -os400*) + vendor=ibm + ;; + -ptx*) + vendor=sequent + ;; + -tpf*) + vendor=ibm + ;; + -vxsim* | -vxworks* | -windiss*) + vendor=wrs + ;; + -aux*) + vendor=apple + ;; + -hms*) + vendor=hitachi + ;; + -mpw* | -macos*) + vendor=apple + ;; + -*mint | -mint[0-9]* | -*MiNT | -MiNT[0-9]*) + vendor=atari + ;; + -vos*) + vendor=stratus + ;; + esac + basic_machine=`echo $basic_machine | sed "s/unknown/$vendor/"` + ;; +esac + +echo $basic_machine$os +exit + +# Local variables: +# eval: (add-hook 'write-file-hooks 'time-stamp) +# time-stamp-start: "timestamp='" +# time-stamp-format: "%:y-%02m-%02d" +# time-stamp-end: "'" +# End: diff --git a/jpeg/configure b/jpeg/configure new file mode 100644 index 0000000..9ba1383 --- /dev/null +++ b/jpeg/configure @@ -0,0 +1,15928 @@ +#! /bin/sh +# Guess values for system-dependent variables and create Makefiles. +# Generated by GNU Autoconf 2.68 for libjpeg 8.4.0. +# +# +# Copyright (C) 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2001, +# 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 Free Software +# Foundation, Inc. +# +# +# This configure script is free software; the Free Software Foundation +# gives unlimited permission to copy, distribute and modify it. +## -------------------- ## +## M4sh Initialization. ## +## -------------------- ## + +# Be more Bourne compatible +DUALCASE=1; export DUALCASE # for MKS sh +if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then : + emulate sh + NULLCMD=: + # Pre-4.2 versions of Zsh do word splitting on ${1+"$@"}, which + # is contrary to our usage. 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But avoid the broken or +# incompatible versions: +# SysV /etc/install, /usr/sbin/install +# SunOS /usr/etc/install +# IRIX /sbin/install +# AIX /bin/install +# AmigaOS /C/install, which installs bootblocks on floppy discs +# AIX 4 /usr/bin/installbsd, which doesn't work without a -g flag +# AFS /usr/afsws/bin/install, which mishandles nonexistent args +# SVR4 /usr/ucb/install, which tries to use the nonexistent group "staff" +# OS/2's system install, which has a completely different semantic +# ./install, which can be erroneously created by make from ./install.sh. +# Reject install programs that cannot install multiple files. +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for a BSD-compatible install" >&5 +$as_echo_n "checking for a BSD-compatible install... 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It has an incompatible calling convention. + : + elif test $ac_prog = install && + grep pwplus "$as_dir/$ac_prog$ac_exec_ext" >/dev/null 2>&1; then + # program-specific install script used by HP pwplus--don't use. + : + else + rm -rf conftest.one conftest.two conftest.dir + echo one > conftest.one + echo two > conftest.two + mkdir conftest.dir + if "$as_dir/$ac_prog$ac_exec_ext" -c conftest.one conftest.two "`pwd`/conftest.dir" && + test -s conftest.one && test -s conftest.two && + test -s conftest.dir/conftest.one && + test -s conftest.dir/conftest.two + then + ac_cv_path_install="$as_dir/$ac_prog$ac_exec_ext -c" + break 3 + fi + fi + fi + done + done + ;; +esac + + done +IFS=$as_save_IFS + +rm -rf conftest.one conftest.two conftest.dir + +fi + if test "${ac_cv_path_install+set}" = set; then + INSTALL=$ac_cv_path_install + else + # As a last resort, use the slow shell script. Don't cache a + # value for INSTALL within a source directory, because that will + # break other packages using the cache if that directory is + # removed, or if the value is a relative name. + INSTALL=$ac_install_sh + fi +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $INSTALL" >&5 +$as_echo "$INSTALL" >&6; } + +# Use test -z because SunOS4 sh mishandles braces in ${var-val}. +# It thinks the first close brace ends the variable substitution. +test -z "$INSTALL_PROGRAM" && INSTALL_PROGRAM='${INSTALL}' + +test -z "$INSTALL_SCRIPT" && INSTALL_SCRIPT='${INSTALL}' + +test -z "$INSTALL_DATA" && INSTALL_DATA='${INSTALL} -m 644' + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether build environment is sane" >&5 +$as_echo_n "checking whether build environment is sane... " >&6; } +# Just in case +sleep 1 +echo timestamp > conftest.file +# Reject unsafe characters in $srcdir or the absolute working directory +# name. 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This can happen + # if, for instance, CONFIG_SHELL is bash and it inherits a + # broken ls alias from the environment. This has actually + # happened. Such a system could not be considered "sane". + as_fn_error $? "ls -t appears to fail. Make sure there is not a broken +alias in your environment" "$LINENO" 5 + fi + + test "$2" = conftest.file + ) +then + # Ok. + : +else + as_fn_error $? "newly created file is older than distributed files! +Check your system clock" "$LINENO" 5 +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 +$as_echo "yes" >&6; } +test "$program_prefix" != NONE && + program_transform_name="s&^&$program_prefix&;$program_transform_name" +# Use a double $ so make ignores it. +test "$program_suffix" != NONE && + program_transform_name="s&\$&$program_suffix&;$program_transform_name" +# Double any \ or $. +# By default was `s,x,x', remove it if useless. +ac_script='s/[\\$]/&&/g;s/;s,x,x,$//' +program_transform_name=`$as_echo "$program_transform_name" | sed "$ac_script"` + +# expand $ac_aux_dir to an absolute path +am_aux_dir=`cd $ac_aux_dir && pwd` + +if test x"${MISSING+set}" != xset; then + case $am_aux_dir in + *\ * | *\ *) + MISSING="\${SHELL} \"$am_aux_dir/missing\"" ;; + *) + MISSING="\${SHELL} $am_aux_dir/missing" ;; + esac +fi +# Use eval to expand $SHELL +if eval "$MISSING --run true"; then + am_missing_run="$MISSING --run " +else + am_missing_run= + { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: \`missing' script is too old or missing" >&5 +$as_echo "$as_me: WARNING: \`missing' script is too old or missing" >&2;} +fi + +if test x"${install_sh}" != xset; then + case $am_aux_dir in + *\ * | *\ *) + install_sh="\${SHELL} '$am_aux_dir/install-sh'" ;; + *) + install_sh="\${SHELL} $am_aux_dir/install-sh" + esac +fi + +# Installed binaries are usually stripped using `strip' when the user +# run `make install-strip'. However `strip' might not be the right +# tool to use in cross-compilation environments, therefore Automake +# will honor the `STRIP' environment variable to overrule this program. +if test "$cross_compiling" != no; then + if test -n "$ac_tool_prefix"; then + # Extract the first word of "${ac_tool_prefix}strip", so it can be a program name with args. +set dummy ${ac_tool_prefix}strip; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_STRIP+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$STRIP"; then + ac_cv_prog_STRIP="$STRIP" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then + ac_cv_prog_STRIP="${ac_tool_prefix}strip" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +STRIP=$ac_cv_prog_STRIP +if test -n "$STRIP"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $STRIP" >&5 +$as_echo "$STRIP" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + +fi +if test -z "$ac_cv_prog_STRIP"; then + ac_ct_STRIP=$STRIP + # Extract the first word of "strip", so it can be a program name with args. +set dummy strip; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_ac_ct_STRIP+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$ac_ct_STRIP"; then + ac_cv_prog_ac_ct_STRIP="$ac_ct_STRIP" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then + ac_cv_prog_ac_ct_STRIP="strip" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +ac_ct_STRIP=$ac_cv_prog_ac_ct_STRIP +if test -n "$ac_ct_STRIP"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_STRIP" >&5 +$as_echo "$ac_ct_STRIP" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + if test "x$ac_ct_STRIP" = x; then + STRIP=":" + else + case $cross_compiling:$ac_tool_warned in +yes:) +{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 +$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} +ac_tool_warned=yes ;; +esac + STRIP=$ac_ct_STRIP + fi +else + STRIP="$ac_cv_prog_STRIP" +fi + +fi +INSTALL_STRIP_PROGRAM="\$(install_sh) -c -s" + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for a thread-safe mkdir -p" >&5 +$as_echo_n "checking for a thread-safe mkdir -p... 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Don't cache a + # value for MKDIR_P within a source directory, because that will + # break other packages using the cache if that directory is + # removed, or if the value is a relative name. + MKDIR_P="$ac_install_sh -d" + fi +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $MKDIR_P" >&5 +$as_echo "$MKDIR_P" >&6; } + +mkdir_p="$MKDIR_P" +case $mkdir_p in + [\\/$]* | ?:[\\/]*) ;; + */*) mkdir_p="\$(top_builddir)/$mkdir_p" ;; +esac + +for ac_prog in gawk mawk nawk awk +do + # Extract the first word of "$ac_prog", so it can be a program name with args. +set dummy $ac_prog; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... 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" >&6; } +if ${ac_cv_prog_CC+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$CC"; then + ac_cv_prog_CC="$CC" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then + ac_cv_prog_CC="${ac_tool_prefix}gcc" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +CC=$ac_cv_prog_CC +if test -n "$CC"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5 +$as_echo "$CC" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + +fi +if test -z "$ac_cv_prog_CC"; then + ac_ct_CC=$CC + # Extract the first word of "gcc", so it can be a program name with args. +set dummy gcc; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_ac_ct_CC+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$ac_ct_CC"; then + ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then + ac_cv_prog_ac_ct_CC="gcc" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +ac_ct_CC=$ac_cv_prog_ac_ct_CC +if test -n "$ac_ct_CC"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_CC" >&5 +$as_echo "$ac_ct_CC" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + if test "x$ac_ct_CC" = x; then + CC="" + else + case $cross_compiling:$ac_tool_warned in +yes:) +{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 +$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} +ac_tool_warned=yes ;; +esac + CC=$ac_ct_CC + fi +else + CC="$ac_cv_prog_CC" +fi + +if test -z "$CC"; then + if test -n "$ac_tool_prefix"; then + # Extract the first word of "${ac_tool_prefix}cc", so it can be a program name with args. +set dummy ${ac_tool_prefix}cc; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_CC+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$CC"; then + ac_cv_prog_CC="$CC" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then + ac_cv_prog_CC="${ac_tool_prefix}cc" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +CC=$ac_cv_prog_CC +if test -n "$CC"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5 +$as_echo "$CC" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + + fi +fi +if test -z "$CC"; then + # Extract the first word of "cc", so it can be a program name with args. +set dummy cc; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_CC+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$CC"; then + ac_cv_prog_CC="$CC" # Let the user override the test. +else + ac_prog_rejected=no +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then + if test "$as_dir/$ac_word$ac_exec_ext" = "/usr/ucb/cc"; then + ac_prog_rejected=yes + continue + fi + ac_cv_prog_CC="cc" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +if test $ac_prog_rejected = yes; then + # We found a bogon in the path, so make sure we never use it. + set dummy $ac_cv_prog_CC + shift + if test $# != 0; then + # We chose a different compiler from the bogus one. + # However, it has the same basename, so the bogon will be chosen + # first if we set CC to just the basename; use the full file name. + shift + ac_cv_prog_CC="$as_dir/$ac_word${1+' '}$@" + fi +fi +fi +fi +CC=$ac_cv_prog_CC +if test -n "$CC"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5 +$as_echo "$CC" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + +fi +if test -z "$CC"; then + if test -n "$ac_tool_prefix"; then + for ac_prog in cl.exe + do + # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args. +set dummy $ac_tool_prefix$ac_prog; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_CC+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$CC"; then + ac_cv_prog_CC="$CC" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then + ac_cv_prog_CC="$ac_tool_prefix$ac_prog" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +CC=$ac_cv_prog_CC +if test -n "$CC"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5 +$as_echo "$CC" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + + test -n "$CC" && break + done +fi +if test -z "$CC"; then + ac_ct_CC=$CC + for ac_prog in cl.exe +do + # Extract the first word of "$ac_prog", so it can be a program name with args. +set dummy $ac_prog; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_ac_ct_CC+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$ac_ct_CC"; then + ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then + ac_cv_prog_ac_ct_CC="$ac_prog" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +ac_ct_CC=$ac_cv_prog_ac_ct_CC +if test -n "$ac_ct_CC"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_CC" >&5 +$as_echo "$ac_ct_CC" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + + test -n "$ac_ct_CC" && break +done + + if test "x$ac_ct_CC" = x; then + CC="" + else + case $cross_compiling:$ac_tool_warned in +yes:) +{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 +$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} +ac_tool_warned=yes ;; +esac + CC=$ac_ct_CC + fi +fi + +fi + + +test -z "$CC" && { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5 +$as_echo "$as_me: error: in \`$ac_pwd':" >&2;} +as_fn_error $? "no acceptable C compiler found in \$PATH +See \`config.log' for more details" "$LINENO" 5; } + +# Provide some information about the compiler. +$as_echo "$as_me:${as_lineno-$LINENO}: checking for C compiler version" >&5 +set X $ac_compile +ac_compiler=$2 +for ac_option in --version -v -V -qversion; do + { { ac_try="$ac_compiler $ac_option >&5" +case "(($ac_try" in + *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; + *) ac_try_echo=$ac_try;; +esac +eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\"" +$as_echo "$ac_try_echo"; } >&5 + (eval "$ac_compiler $ac_option >&5") 2>conftest.err + ac_status=$? + if test -s conftest.err; then + sed '10a\ +... rest of stderr output deleted ... + 10q' conftest.err >conftest.er1 + cat conftest.er1 >&5 + fi + rm -f conftest.er1 conftest.err + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; } +done + +cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +int +main () +{ + + ; + return 0; +} +_ACEOF +ac_clean_files_save=$ac_clean_files +ac_clean_files="$ac_clean_files a.out a.out.dSYM a.exe b.out" +# Try to create an executable without -o first, disregard a.out. +# It will help us diagnose broken compilers, and finding out an intuition +# of exeext. +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the C compiler works" >&5 +$as_echo_n "checking whether the C compiler works... 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We should not override ac_cv_exeext if it was cached, +# so that the user can short-circuit this test for compilers unknown to +# Autoconf. +for ac_file in $ac_files '' +do + test -f "$ac_file" || continue + case $ac_file in + *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg | *.map | *.inf | *.dSYM | *.o | *.obj ) + ;; + [ab].out ) + # We found the default executable, but exeext='' is most + # certainly right. + break;; + *.* ) + if test "${ac_cv_exeext+set}" = set && test "$ac_cv_exeext" != no; + then :; else + ac_cv_exeext=`expr "$ac_file" : '[^.]*\(\..*\)'` + fi + # We set ac_cv_exeext here because the later test for it is not + # safe: cross compilers may not add the suffix if given an `-o' + # argument, so we may need to know it at that point already. + # Even if this section looks crufty: it has the advantage of + # actually working. + break;; + * ) + break;; + esac +done +test "$ac_cv_exeext" = no && ac_cv_exeext= + +else + ac_file='' +fi +if test -z "$ac_file"; then : + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +$as_echo "$as_me: failed program was:" >&5 +sed 's/^/| /' conftest.$ac_ext >&5 + +{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5 +$as_echo "$as_me: error: in \`$ac_pwd':" >&2;} +as_fn_error 77 "C compiler cannot create executables +See \`config.log' for more details" "$LINENO" 5; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 +$as_echo "yes" >&6; } +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for C compiler default output file name" >&5 +$as_echo_n "checking for C compiler default output file name... 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For instance with Cygwin, `ls conftest' will +# work properly (i.e., refer to `conftest.exe'), while it won't with +# `rm'. +for ac_file in conftest.exe conftest conftest.*; do + test -f "$ac_file" || continue + case $ac_file in + *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg | *.map | *.inf | *.dSYM | *.o | *.obj ) ;; + *.* ) ac_cv_exeext=`expr "$ac_file" : '[^.]*\(\..*\)'` + break;; + * ) break;; + esac +done +else + { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5 +$as_echo "$as_me: error: in \`$ac_pwd':" >&2;} +as_fn_error $? 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It's necessary to write '\x00'==0 to get something + that's true only with -std. */ +int osf4_cc_array ['\x00' == 0 ? 1 : -1]; + +/* IBM C 6 for AIX is almost-ANSI by default, but it replaces macro parameters + inside strings and character constants. */ +#define FOO(x) 'x' +int xlc6_cc_array[FOO(a) == 'x' ? 1 : -1]; + +int test (int i, double x); +struct s1 {int (*f) (int a);}; +struct s2 {int (*f) (double a);}; +int pairnames (int, char **, FILE *(*)(struct buf *, struct stat *, int), int, int); +int argc; +char **argv; +int +main () +{ +return f (e, argv, 0) != argv[0] || f (e, argv, 1) != argv[1]; + ; + return 0; +} +_ACEOF +for ac_arg in '' -qlanglvl=extc89 -qlanglvl=ansi -std \ + -Ae "-Aa -D_HPUX_SOURCE" "-Xc -D__EXTENSIONS__" +do + CC="$ac_save_CC $ac_arg" + if ac_fn_c_try_compile "$LINENO"; then : + ac_cv_prog_cc_c89=$ac_arg +fi +rm -f core conftest.err conftest.$ac_objext + test "x$ac_cv_prog_cc_c89" != "xno" && break +done +rm -f conftest.$ac_ext +CC=$ac_save_CC + +fi +# AC_CACHE_VAL +case "x$ac_cv_prog_cc_c89" in + x) + { $as_echo "$as_me:${as_lineno-$LINENO}: result: none needed" >&5 +$as_echo "none needed" >&6; } ;; + xno) + { $as_echo "$as_me:${as_lineno-$LINENO}: result: unsupported" >&5 +$as_echo "unsupported" >&6; } ;; + *) + CC="$CC $ac_cv_prog_cc_c89" + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_c89" >&5 +$as_echo "$ac_cv_prog_cc_c89" >&6; } ;; +esac +if test "x$ac_cv_prog_cc_c89" != xno; then : + +fi + +ac_ext=c +ac_cpp='$CPP $CPPFLAGS' +ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5' +ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' +ac_compiler_gnu=$ac_cv_c_compiler_gnu + +depcc="$CC" am_compiler_list= + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking dependency style of $depcc" >&5 +$as_echo_n "checking dependency style of $depcc... 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So we grep stderr for any message + # that says an option was ignored or not supported. + # When given -MP, icc 7.0 and 7.1 complain thusly: + # icc: Command line warning: ignoring option '-M'; no argument required + # The diagnosis changed in icc 8.0: + # icc: Command line remark: option '-MP' not supported + if (grep 'ignoring option' conftest.err || + grep 'not supported' conftest.err) >/dev/null 2>&1; then :; else + am_cv_CC_dependencies_compiler_type=$depmode + break + fi + fi + done + + cd .. + rm -rf conftest.dir +else + am_cv_CC_dependencies_compiler_type=none +fi + +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $am_cv_CC_dependencies_compiler_type" >&5 +$as_echo "$am_cv_CC_dependencies_compiler_type" >&6; } +CCDEPMODE=depmode=$am_cv_CC_dependencies_compiler_type + + if + test "x$enable_dependency_tracking" != xno \ + && test "$am_cv_CC_dependencies_compiler_type" = gcc3; then + am__fastdepCC_TRUE= + am__fastdepCC_FALSE='#' +else + am__fastdepCC_TRUE='#' + am__fastdepCC_FALSE= +fi + + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for function prototypes" >&5 +$as_echo_n "checking for function prototypes... 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" >&6; } +if ${ac_cv_path_EGREP+:} false; then : + $as_echo_n "(cached) " >&6 +else + if echo a | $GREP -E '(a|b)' >/dev/null 2>&1 + then ac_cv_path_EGREP="$GREP -E" + else + if test -z "$EGREP"; then + ac_path_EGREP_found=false + # Loop through the user's path and test for each of PROGNAME-LIST + as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH$PATH_SEPARATOR/usr/xpg4/bin +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_prog in egrep; do + for ac_exec_ext in '' $ac_executable_extensions; do + ac_path_EGREP="$as_dir/$ac_prog$ac_exec_ext" + { test -f "$ac_path_EGREP" && $as_test_x "$ac_path_EGREP"; } || continue +# Check for GNU ac_path_EGREP and select it if it is found. + # Check for GNU $ac_path_EGREP +case `"$ac_path_EGREP" --version 2>&1` in +*GNU*) + ac_cv_path_EGREP="$ac_path_EGREP" ac_path_EGREP_found=:;; +*) + ac_count=0 + $as_echo_n 0123456789 >"conftest.in" + while : + do + cat "conftest.in" "conftest.in" >"conftest.tmp" + mv "conftest.tmp" "conftest.in" + cp "conftest.in" "conftest.nl" + $as_echo 'EGREP' >> "conftest.nl" + "$ac_path_EGREP" 'EGREP$' < "conftest.nl" >"conftest.out" 2>/dev/null || break + diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break + as_fn_arith $ac_count + 1 && ac_count=$as_val + if test $ac_count -gt ${ac_path_EGREP_max-0}; then + # Best one so far, save it but keep looking for a better one + ac_cv_path_EGREP="$ac_path_EGREP" + ac_path_EGREP_max=$ac_count + fi + # 10*(2^10) chars as input seems more than enough + test $ac_count -gt 10 && break + done + rm -f conftest.in conftest.tmp conftest.nl conftest.out;; +esac + + $ac_path_EGREP_found && break 3 + done + done + done +IFS=$as_save_IFS + if test -z "$ac_cv_path_EGREP"; then + as_fn_error $? "no acceptable egrep could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" "$LINENO" 5 + fi +else + ac_cv_path_EGREP=$EGREP +fi + + fi +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_EGREP" >&5 +$as_echo "$ac_cv_path_EGREP" >&6; } + EGREP="$ac_cv_path_EGREP" + + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for ANSI C header files" >&5 +$as_echo_n "checking for ANSI C header files... " >&6; } +if ${ac_cv_header_stdc+:} false; then : + $as_echo_n "(cached) " >&6 +else + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#include +#include +#include +#include + +int +main () +{ + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + ac_cv_header_stdc=yes +else + ac_cv_header_stdc=no +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext + +if test $ac_cv_header_stdc = yes; then + # SunOS 4.x string.h does not declare mem*, contrary to ANSI. + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#include + +_ACEOF +if (eval "$ac_cpp conftest.$ac_ext") 2>&5 | + $EGREP "memchr" >/dev/null 2>&1; then : + +else + ac_cv_header_stdc=no +fi +rm -f conftest* + +fi + +if test $ac_cv_header_stdc = yes; then + # ISC 2.0.2 stdlib.h does not declare free, contrary to ANSI. + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#include + +_ACEOF +if (eval "$ac_cpp conftest.$ac_ext") 2>&5 | + $EGREP "free" >/dev/null 2>&1; then : + +else + ac_cv_header_stdc=no +fi +rm -f conftest* + +fi + +if test $ac_cv_header_stdc = yes; then + # /bin/cc in Irix-4.0.5 gets non-ANSI ctype macros unless using -ansi. + if test "$cross_compiling" = yes; then : + : +else + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#include +#include +#if ((' ' & 0x0FF) == 0x020) +# define ISLOWER(c) ('a' <= (c) && (c) <= 'z') +# define TOUPPER(c) (ISLOWER(c) ? 'A' + ((c) - 'a') : (c)) +#else +# define ISLOWER(c) \ + (('a' <= (c) && (c) <= 'i') \ + || ('j' <= (c) && (c) <= 'r') \ + || ('s' <= (c) && (c) <= 'z')) +# define TOUPPER(c) (ISLOWER(c) ? ((c) | 0x40) : (c)) +#endif + +#define XOR(e, f) (((e) && !(f)) || (!(e) && (f))) +int +main () +{ + int i; + for (i = 0; i < 256; i++) + if (XOR (islower (i), ISLOWER (i)) + || toupper (i) != TOUPPER (i)) + return 2; + return 0; +} +_ACEOF +if ac_fn_c_try_run "$LINENO"; then : + +else + ac_cv_header_stdc=no +fi +rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \ + conftest.$ac_objext conftest.beam conftest.$ac_ext +fi + +fi +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_header_stdc" >&5 +$as_echo "$ac_cv_header_stdc" >&6; } +if test $ac_cv_header_stdc = yes; then + +$as_echo "#define STDC_HEADERS 1" >>confdefs.h + +fi + +# On IRIX 5.3, sys/types and inttypes.h are conflicting. +for ac_header in sys/types.h sys/stat.h stdlib.h string.h memory.h strings.h \ + inttypes.h stdint.h unistd.h +do : + as_ac_Header=`$as_echo "ac_cv_header_$ac_header" | $as_tr_sh` +ac_fn_c_check_header_compile "$LINENO" "$ac_header" "$as_ac_Header" "$ac_includes_default +" +if eval test \"x\$"$as_ac_Header"\" = x"yes"; then : + cat >>confdefs.h <<_ACEOF +#define `$as_echo "HAVE_$ac_header" | $as_tr_cpp` 1 +_ACEOF + +fi + +done + + + + +if test "$ac_cv_prog_cc_stdc" != no; then + U= ANSI2KNR= +else + U=_ ANSI2KNR=./ansi2knr +fi +# Ensure some checks needed by ansi2knr itself. + +for ac_header in string.h +do : + ac_fn_c_check_header_mongrel "$LINENO" "string.h" "ac_cv_header_string_h" "$ac_includes_default" +if test "x$ac_cv_header_string_h" = xyes; then : + cat >>confdefs.h <<_ACEOF +#define HAVE_STRING_H 1 +_ACEOF + +fi + +done + + + +# Add configure option --enable-maintainer-mode which enables +# dependency checking and generation useful to package maintainers. +# This is made an option to avoid confusing end users. + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to enable maintainer-specific portions of Makefiles" >&5 +$as_echo_n "checking whether to enable maintainer-specific portions of Makefiles... " >&6; } + # Check whether --enable-maintainer-mode was given. +if test "${enable_maintainer_mode+set}" = set; then : + enableval=$enable_maintainer_mode; USE_MAINTAINER_MODE=$enableval +else + USE_MAINTAINER_MODE=no +fi + + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $USE_MAINTAINER_MODE" >&5 +$as_echo "$USE_MAINTAINER_MODE" >&6; } + if test $USE_MAINTAINER_MODE = yes; then + MAINTAINER_MODE_TRUE= + MAINTAINER_MODE_FALSE='#' +else + MAINTAINER_MODE_TRUE='#' + MAINTAINER_MODE_FALSE= +fi + + MAINT=$MAINTAINER_MODE_TRUE + + + +# Check for programs +ac_ext=c +ac_cpp='$CPP $CPPFLAGS' +ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5' +ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' +ac_compiler_gnu=$ac_cv_c_compiler_gnu +if test -n "$ac_tool_prefix"; then + # Extract the first word of "${ac_tool_prefix}gcc", so it can be a program name with args. +set dummy ${ac_tool_prefix}gcc; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_CC+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$CC"; then + ac_cv_prog_CC="$CC" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then + ac_cv_prog_CC="${ac_tool_prefix}gcc" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +CC=$ac_cv_prog_CC +if test -n "$CC"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5 +$as_echo "$CC" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + +fi +if test -z "$ac_cv_prog_CC"; then + ac_ct_CC=$CC + # Extract the first word of "gcc", so it can be a program name with args. +set dummy gcc; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_ac_ct_CC+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$ac_ct_CC"; then + ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then + ac_cv_prog_ac_ct_CC="gcc" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +ac_ct_CC=$ac_cv_prog_ac_ct_CC +if test -n "$ac_ct_CC"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_CC" >&5 +$as_echo "$ac_ct_CC" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + if test "x$ac_ct_CC" = x; then + CC="" + else + case $cross_compiling:$ac_tool_warned in +yes:) +{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 +$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} +ac_tool_warned=yes ;; +esac + CC=$ac_ct_CC + fi +else + CC="$ac_cv_prog_CC" +fi + +if test -z "$CC"; then + if test -n "$ac_tool_prefix"; then + # Extract the first word of "${ac_tool_prefix}cc", so it can be a program name with args. +set dummy ${ac_tool_prefix}cc; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_CC+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$CC"; then + ac_cv_prog_CC="$CC" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then + ac_cv_prog_CC="${ac_tool_prefix}cc" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +CC=$ac_cv_prog_CC +if test -n "$CC"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5 +$as_echo "$CC" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + + fi +fi +if test -z "$CC"; then + # Extract the first word of "cc", so it can be a program name with args. +set dummy cc; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_CC+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$CC"; then + ac_cv_prog_CC="$CC" # Let the user override the test. +else + ac_prog_rejected=no +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then + if test "$as_dir/$ac_word$ac_exec_ext" = "/usr/ucb/cc"; then + ac_prog_rejected=yes + continue + fi + ac_cv_prog_CC="cc" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +if test $ac_prog_rejected = yes; then + # We found a bogon in the path, so make sure we never use it. + set dummy $ac_cv_prog_CC + shift + if test $# != 0; then + # We chose a different compiler from the bogus one. + # However, it has the same basename, so the bogon will be chosen + # first if we set CC to just the basename; use the full file name. + shift + ac_cv_prog_CC="$as_dir/$ac_word${1+' '}$@" + fi +fi +fi +fi +CC=$ac_cv_prog_CC +if test -n "$CC"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5 +$as_echo "$CC" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + +fi +if test -z "$CC"; then + if test -n "$ac_tool_prefix"; then + for ac_prog in cl.exe + do + # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args. +set dummy $ac_tool_prefix$ac_prog; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_CC+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$CC"; then + ac_cv_prog_CC="$CC" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then + ac_cv_prog_CC="$ac_tool_prefix$ac_prog" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +CC=$ac_cv_prog_CC +if test -n "$CC"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5 +$as_echo "$CC" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + + test -n "$CC" && break + done +fi +if test -z "$CC"; then + ac_ct_CC=$CC + for ac_prog in cl.exe +do + # Extract the first word of "$ac_prog", so it can be a program name with args. +set dummy $ac_prog; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_ac_ct_CC+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$ac_ct_CC"; then + ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then + ac_cv_prog_ac_ct_CC="$ac_prog" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +ac_ct_CC=$ac_cv_prog_ac_ct_CC +if test -n "$ac_ct_CC"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_CC" >&5 +$as_echo "$ac_ct_CC" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + + test -n "$ac_ct_CC" && break +done + + if test "x$ac_ct_CC" = x; then + CC="" + else + case $cross_compiling:$ac_tool_warned in +yes:) +{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 +$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} +ac_tool_warned=yes ;; +esac + CC=$ac_ct_CC + fi +fi + +fi + + +test -z "$CC" && { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5 +$as_echo "$as_me: error: in \`$ac_pwd':" >&2;} +as_fn_error $? "no acceptable C compiler found in \$PATH +See \`config.log' for more details" "$LINENO" 5; } + +# Provide some information about the compiler. +$as_echo "$as_me:${as_lineno-$LINENO}: checking for C compiler version" >&5 +set X $ac_compile +ac_compiler=$2 +for ac_option in --version -v -V -qversion; do + { { ac_try="$ac_compiler $ac_option >&5" +case "(($ac_try" in + *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; + *) ac_try_echo=$ac_try;; +esac +eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\"" +$as_echo "$ac_try_echo"; } >&5 + (eval "$ac_compiler $ac_option >&5") 2>conftest.err + ac_status=$? + if test -s conftest.err; then + sed '10a\ +... rest of stderr output deleted ... + 10q' conftest.err >conftest.er1 + cat conftest.er1 >&5 + fi + rm -f conftest.er1 conftest.err + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; } +done + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether we are using the GNU C compiler" >&5 +$as_echo_n "checking whether we are using the GNU C compiler... " >&6; } +if ${ac_cv_c_compiler_gnu+:} false; then : + $as_echo_n "(cached) " >&6 +else + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +int +main () +{ +#ifndef __GNUC__ + choke me +#endif + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + ac_compiler_gnu=yes +else + ac_compiler_gnu=no +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext +ac_cv_c_compiler_gnu=$ac_compiler_gnu + +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_c_compiler_gnu" >&5 +$as_echo "$ac_cv_c_compiler_gnu" >&6; } +if test $ac_compiler_gnu = yes; then + GCC=yes +else + GCC= +fi +ac_test_CFLAGS=${CFLAGS+set} +ac_save_CFLAGS=$CFLAGS +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC accepts -g" >&5 +$as_echo_n "checking whether $CC accepts -g... " >&6; } +if ${ac_cv_prog_cc_g+:} false; then : + $as_echo_n "(cached) " >&6 +else + ac_save_c_werror_flag=$ac_c_werror_flag + ac_c_werror_flag=yes + ac_cv_prog_cc_g=no + CFLAGS="-g" + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +int +main () +{ + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + ac_cv_prog_cc_g=yes +else + CFLAGS="" + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +int +main () +{ + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + +else + ac_c_werror_flag=$ac_save_c_werror_flag + CFLAGS="-g" + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +int +main () +{ + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + ac_cv_prog_cc_g=yes +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext + ac_c_werror_flag=$ac_save_c_werror_flag +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_g" >&5 +$as_echo "$ac_cv_prog_cc_g" >&6; } +if test "$ac_test_CFLAGS" = set; then + CFLAGS=$ac_save_CFLAGS +elif test $ac_cv_prog_cc_g = yes; then + if test "$GCC" = yes; then + CFLAGS="-g -O2" + else + CFLAGS="-g" + fi +else + if test "$GCC" = yes; then + CFLAGS="-O2" + else + CFLAGS= + fi +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $CC option to accept ISO C89" >&5 +$as_echo_n "checking for $CC option to accept ISO C89... " >&6; } +if ${ac_cv_prog_cc_c89+:} false; then : + $as_echo_n "(cached) " >&6 +else + ac_cv_prog_cc_c89=no +ac_save_CC=$CC +cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#include +#include +#include +#include +/* Most of the following tests are stolen from RCS 5.7's src/conf.sh. */ +struct buf { int x; }; +FILE * (*rcsopen) (struct buf *, struct stat *, int); +static char *e (p, i) + char **p; + int i; +{ + return p[i]; +} +static char *f (char * (*g) (char **, int), char **p, ...) +{ + char *s; + va_list v; + va_start (v,p); + s = g (p, va_arg (v,int)); + va_end (v); + return s; +} + +/* OSF 4.0 Compaq cc is some sort of almost-ANSI by default. It has + function prototypes and stuff, but not '\xHH' hex character constants. + These don't provoke an error unfortunately, instead are silently treated + as 'x'. The following induces an error, until -std is added to get + proper ANSI mode. Curiously '\x00'!='x' always comes out true, for an + array size at least. It's necessary to write '\x00'==0 to get something + that's true only with -std. */ +int osf4_cc_array ['\x00' == 0 ? 1 : -1]; + +/* IBM C 6 for AIX is almost-ANSI by default, but it replaces macro parameters + inside strings and character constants. */ +#define FOO(x) 'x' +int xlc6_cc_array[FOO(a) == 'x' ? 1 : -1]; + +int test (int i, double x); +struct s1 {int (*f) (int a);}; +struct s2 {int (*f) (double a);}; +int pairnames (int, char **, FILE *(*)(struct buf *, struct stat *, int), int, int); +int argc; +char **argv; +int +main () +{ +return f (e, argv, 0) != argv[0] || f (e, argv, 1) != argv[1]; + ; + return 0; +} +_ACEOF +for ac_arg in '' -qlanglvl=extc89 -qlanglvl=ansi -std \ + -Ae "-Aa -D_HPUX_SOURCE" "-Xc -D__EXTENSIONS__" +do + CC="$ac_save_CC $ac_arg" + if ac_fn_c_try_compile "$LINENO"; then : + ac_cv_prog_cc_c89=$ac_arg +fi +rm -f core conftest.err conftest.$ac_objext + test "x$ac_cv_prog_cc_c89" != "xno" && break +done +rm -f conftest.$ac_ext +CC=$ac_save_CC + +fi +# AC_CACHE_VAL +case "x$ac_cv_prog_cc_c89" in + x) + { $as_echo "$as_me:${as_lineno-$LINENO}: result: none needed" >&5 +$as_echo "none needed" >&6; } ;; + xno) + { $as_echo "$as_me:${as_lineno-$LINENO}: result: unsupported" >&5 +$as_echo "unsupported" >&6; } ;; + *) + CC="$CC $ac_cv_prog_cc_c89" + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_c89" >&5 +$as_echo "$ac_cv_prog_cc_c89" >&6; } ;; +esac +if test "x$ac_cv_prog_cc_c89" != xno; then : + +fi + +ac_ext=c +ac_cpp='$CPP $CPPFLAGS' +ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5' +ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' +ac_compiler_gnu=$ac_cv_c_compiler_gnu + +depcc="$CC" am_compiler_list= + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking dependency style of $depcc" >&5 +$as_echo_n "checking dependency style of $depcc... " >&6; } +if ${am_cv_CC_dependencies_compiler_type+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -z "$AMDEP_TRUE" && test -f "$am_depcomp"; then + # We make a subdir and do the tests there. Otherwise we can end up + # making bogus files that we don't know about and never remove. For + # instance it was reported that on HP-UX the gcc test will end up + # making a dummy file named `D' -- because `-MD' means `put the output + # in D'. + rm -rf conftest.dir + mkdir conftest.dir + # Copy depcomp to subdir because otherwise we won't find it if we're + # using a relative directory. + cp "$am_depcomp" conftest.dir + cd conftest.dir + # We will build objects and dependencies in a subdirectory because + # it helps to detect inapplicable dependency modes. For instance + # both Tru64's cc and ICC support -MD to output dependencies as a + # side effect of compilation, but ICC will put the dependencies in + # the current directory while Tru64 will put them in the object + # directory. + mkdir sub + + am_cv_CC_dependencies_compiler_type=none + if test "$am_compiler_list" = ""; then + am_compiler_list=`sed -n 's/^#*\([a-zA-Z0-9]*\))$/\1/p' < ./depcomp` + fi + am__universal=false + case " $depcc " in #( + *\ -arch\ *\ -arch\ *) am__universal=true ;; + esac + + for depmode in $am_compiler_list; do + # Setup a source with many dependencies, because some compilers + # like to wrap large dependency lists on column 80 (with \), and + # we should not choose a depcomp mode which is confused by this. + # + # We need to recreate these files for each test, as the compiler may + # overwrite some of them when testing with obscure command lines. + # This happens at least with the AIX C compiler. + : > sub/conftest.c + for i in 1 2 3 4 5 6; do + echo '#include "conftst'$i'.h"' >> sub/conftest.c + # Using `: > sub/conftst$i.h' creates only sub/conftst1.h with + # Solaris 8's {/usr,}/bin/sh. + touch sub/conftst$i.h + done + echo "${am__include} ${am__quote}sub/conftest.Po${am__quote}" > confmf + + # We check with `-c' and `-o' for the sake of the "dashmstdout" + # mode. It turns out that the SunPro C++ compiler does not properly + # handle `-M -o', and we need to detect this. Also, some Intel + # versions had trouble with output in subdirs + am__obj=sub/conftest.${OBJEXT-o} + am__minus_obj="-o $am__obj" + case $depmode in + gcc) + # This depmode causes a compiler race in universal mode. + test "$am__universal" = false || continue + ;; + nosideeffect) + # after this tag, mechanisms are not by side-effect, so they'll + # only be used when explicitly requested + if test "x$enable_dependency_tracking" = xyes; then + continue + else + break + fi + ;; + msvc7 | msvc7msys | msvisualcpp | msvcmsys) + # This compiler won't grok `-c -o', but also, the minuso test has + # not run yet. These depmodes are late enough in the game, and + # so weak that their functioning should not be impacted. + am__obj=conftest.${OBJEXT-o} + am__minus_obj= + ;; + none) break ;; + esac + if depmode=$depmode \ + source=sub/conftest.c object=$am__obj \ + depfile=sub/conftest.Po tmpdepfile=sub/conftest.TPo \ + $SHELL ./depcomp $depcc -c $am__minus_obj sub/conftest.c \ + >/dev/null 2>conftest.err && + grep sub/conftst1.h sub/conftest.Po > /dev/null 2>&1 && + grep sub/conftst6.h sub/conftest.Po > /dev/null 2>&1 && + grep $am__obj sub/conftest.Po > /dev/null 2>&1 && + ${MAKE-make} -s -f confmf > /dev/null 2>&1; then + # icc doesn't choke on unknown options, it will just issue warnings + # or remarks (even with -Werror). So we grep stderr for any message + # that says an option was ignored or not supported. + # When given -MP, icc 7.0 and 7.1 complain thusly: + # icc: Command line warning: ignoring option '-M'; no argument required + # The diagnosis changed in icc 8.0: + # icc: Command line remark: option '-MP' not supported + if (grep 'ignoring option' conftest.err || + grep 'not supported' conftest.err) >/dev/null 2>&1; then :; else + am_cv_CC_dependencies_compiler_type=$depmode + break + fi + fi + done + + cd .. + rm -rf conftest.dir +else + am_cv_CC_dependencies_compiler_type=none +fi + +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $am_cv_CC_dependencies_compiler_type" >&5 +$as_echo "$am_cv_CC_dependencies_compiler_type" >&6; } +CCDEPMODE=depmode=$am_cv_CC_dependencies_compiler_type + + if + test "x$enable_dependency_tracking" != xno \ + && test "$am_cv_CC_dependencies_compiler_type" = gcc3; then + am__fastdepCC_TRUE= + am__fastdepCC_FALSE='#' +else + am__fastdepCC_TRUE='#' + am__fastdepCC_FALSE= +fi + + + case $ac_cv_prog_cc_stdc in #( + no) : + ac_cv_prog_cc_c99=no; ac_cv_prog_cc_c89=no ;; #( + *) : + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $CC option to accept ISO C99" >&5 +$as_echo_n "checking for $CC option to accept ISO C99... " >&6; } +if ${ac_cv_prog_cc_c99+:} false; then : + $as_echo_n "(cached) " >&6 +else + ac_cv_prog_cc_c99=no +ac_save_CC=$CC +cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#include +#include +#include +#include +#include + +// Check varargs macros. These examples are taken from C99 6.10.3.5. +#define debug(...) fprintf (stderr, __VA_ARGS__) +#define showlist(...) puts (#__VA_ARGS__) +#define report(test,...) ((test) ? puts (#test) : printf (__VA_ARGS__)) +static void +test_varargs_macros (void) +{ + int x = 1234; + int y = 5678; + debug ("Flag"); + debug ("X = %d\n", x); + showlist (The first, second, and third items.); + report (x>y, "x is %d but y is %d", x, y); +} + +// Check long long types. +#define BIG64 18446744073709551615ull +#define BIG32 4294967295ul +#define BIG_OK (BIG64 / BIG32 == 4294967297ull && BIG64 % BIG32 == 0) +#if !BIG_OK + your preprocessor is broken; +#endif +#if BIG_OK +#else + your preprocessor is broken; +#endif +static long long int bignum = -9223372036854775807LL; +static unsigned long long int ubignum = BIG64; + +struct incomplete_array +{ + int datasize; + double data[]; +}; + +struct named_init { + int number; + const wchar_t *name; + double average; +}; + +typedef const char *ccp; + +static inline int +test_restrict (ccp restrict text) +{ + // See if C++-style comments work. + // Iterate through items via the restricted pointer. + // Also check for declarations in for loops. + for (unsigned int i = 0; *(text+i) != '\0'; ++i) + continue; + return 0; +} + +// Check varargs and va_copy. +static void +test_varargs (const char *format, ...) +{ + va_list args; + va_start (args, format); + va_list args_copy; + va_copy (args_copy, args); + + const char *str; + int number; + float fnumber; + + while (*format) + { + switch (*format++) + { + case 's': // string + str = va_arg (args_copy, const char *); + break; + case 'd': // int + number = va_arg (args_copy, int); + break; + case 'f': // float + fnumber = va_arg (args_copy, double); + break; + default: + break; + } + } + va_end (args_copy); + va_end (args); +} + +int +main () +{ + + // Check bool. + _Bool success = false; + + // Check restrict. + if (test_restrict ("String literal") == 0) + success = true; + char *restrict newvar = "Another string"; + + // Check varargs. + test_varargs ("s, d' f .", "string", 65, 34.234); + test_varargs_macros (); + + // Check flexible array members. + struct incomplete_array *ia = + malloc (sizeof (struct incomplete_array) + (sizeof (double) * 10)); + ia->datasize = 10; + for (int i = 0; i < ia->datasize; ++i) + ia->data[i] = i * 1.234; + + // Check named initializers. + struct named_init ni = { + .number = 34, + .name = L"Test wide string", + .average = 543.34343, + }; + + ni.number = 58; + + int dynamic_array[ni.number]; + dynamic_array[ni.number - 1] = 543; + + // work around unused variable warnings + return (!success || bignum == 0LL || ubignum == 0uLL || newvar[0] == 'x' + || dynamic_array[ni.number - 1] != 543); + + ; + return 0; +} +_ACEOF +for ac_arg in '' -std=gnu99 -std=c99 -c99 -AC99 -xc99=all -qlanglvl=extc99 +do + CC="$ac_save_CC $ac_arg" + if ac_fn_c_try_compile "$LINENO"; then : + ac_cv_prog_cc_c99=$ac_arg +fi +rm -f core conftest.err conftest.$ac_objext + test "x$ac_cv_prog_cc_c99" != "xno" && break +done +rm -f conftest.$ac_ext +CC=$ac_save_CC + +fi +# AC_CACHE_VAL +case "x$ac_cv_prog_cc_c99" in + x) + { $as_echo "$as_me:${as_lineno-$LINENO}: result: none needed" >&5 +$as_echo "none needed" >&6; } ;; + xno) + { $as_echo "$as_me:${as_lineno-$LINENO}: result: unsupported" >&5 +$as_echo "unsupported" >&6; } ;; + *) + CC="$CC $ac_cv_prog_cc_c99" + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_c99" >&5 +$as_echo "$ac_cv_prog_cc_c99" >&6; } ;; +esac +if test "x$ac_cv_prog_cc_c99" != xno; then : + ac_cv_prog_cc_stdc=$ac_cv_prog_cc_c99 +else + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $CC option to accept ISO C89" >&5 +$as_echo_n "checking for $CC option to accept ISO C89... " >&6; } +if ${ac_cv_prog_cc_c89+:} false; then : + $as_echo_n "(cached) " >&6 +else + ac_cv_prog_cc_c89=no +ac_save_CC=$CC +cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#include +#include +#include +#include +/* Most of the following tests are stolen from RCS 5.7's src/conf.sh. */ +struct buf { int x; }; +FILE * (*rcsopen) (struct buf *, struct stat *, int); +static char *e (p, i) + char **p; + int i; +{ + return p[i]; +} +static char *f (char * (*g) (char **, int), char **p, ...) +{ + char *s; + va_list v; + va_start (v,p); + s = g (p, va_arg (v,int)); + va_end (v); + return s; +} + +/* OSF 4.0 Compaq cc is some sort of almost-ANSI by default. It has + function prototypes and stuff, but not '\xHH' hex character constants. + These don't provoke an error unfortunately, instead are silently treated + as 'x'. The following induces an error, until -std is added to get + proper ANSI mode. Curiously '\x00'!='x' always comes out true, for an + array size at least. It's necessary to write '\x00'==0 to get something + that's true only with -std. */ +int osf4_cc_array ['\x00' == 0 ? 1 : -1]; + +/* IBM C 6 for AIX is almost-ANSI by default, but it replaces macro parameters + inside strings and character constants. */ +#define FOO(x) 'x' +int xlc6_cc_array[FOO(a) == 'x' ? 1 : -1]; + +int test (int i, double x); +struct s1 {int (*f) (int a);}; +struct s2 {int (*f) (double a);}; +int pairnames (int, char **, FILE *(*)(struct buf *, struct stat *, int), int, int); +int argc; +char **argv; +int +main () +{ +return f (e, argv, 0) != argv[0] || f (e, argv, 1) != argv[1]; + ; + return 0; +} +_ACEOF +for ac_arg in '' -qlanglvl=extc89 -qlanglvl=ansi -std \ + -Ae "-Aa -D_HPUX_SOURCE" "-Xc -D__EXTENSIONS__" +do + CC="$ac_save_CC $ac_arg" + if ac_fn_c_try_compile "$LINENO"; then : + ac_cv_prog_cc_c89=$ac_arg +fi +rm -f core conftest.err conftest.$ac_objext + test "x$ac_cv_prog_cc_c89" != "xno" && break +done +rm -f conftest.$ac_ext +CC=$ac_save_CC + +fi +# AC_CACHE_VAL +case "x$ac_cv_prog_cc_c89" in + x) + { $as_echo "$as_me:${as_lineno-$LINENO}: result: none needed" >&5 +$as_echo "none needed" >&6; } ;; + xno) + { $as_echo "$as_me:${as_lineno-$LINENO}: result: unsupported" >&5 +$as_echo "unsupported" >&6; } ;; + *) + CC="$CC $ac_cv_prog_cc_c89" + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_c89" >&5 +$as_echo "$ac_cv_prog_cc_c89" >&6; } ;; +esac +if test "x$ac_cv_prog_cc_c89" != xno; then : + ac_cv_prog_cc_stdc=$ac_cv_prog_cc_c89 +else + ac_cv_prog_cc_stdc=no +fi + +fi + ;; +esac + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $CC option to accept ISO Standard C" >&5 +$as_echo_n "checking for $CC option to accept ISO Standard C... " >&6; } + if ${ac_cv_prog_cc_stdc+:} false; then : + $as_echo_n "(cached) " >&6 +fi + + case $ac_cv_prog_cc_stdc in #( + no) : + { $as_echo "$as_me:${as_lineno-$LINENO}: result: unsupported" >&5 +$as_echo "unsupported" >&6; } ;; #( + '') : + { $as_echo "$as_me:${as_lineno-$LINENO}: result: none needed" >&5 +$as_echo "none needed" >&6; } ;; #( + *) : + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_stdc" >&5 +$as_echo "$ac_cv_prog_cc_stdc" >&6; } ;; +esac + +ac_ext=c +ac_cpp='$CPP $CPPFLAGS' +ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5' +ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' +ac_compiler_gnu=$ac_cv_c_compiler_gnu +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking how to run the C preprocessor" >&5 +$as_echo_n "checking how to run the C preprocessor... " >&6; } +# On Suns, sometimes $CPP names a directory. +if test -n "$CPP" && test -d "$CPP"; then + CPP= +fi +if test -z "$CPP"; then + if ${ac_cv_prog_CPP+:} false; then : + $as_echo_n "(cached) " >&6 +else + # Double quotes because CPP needs to be expanded + for CPP in "$CC -E" "$CC -E -traditional-cpp" "/lib/cpp" + do + ac_preproc_ok=false +for ac_c_preproc_warn_flag in '' yes +do + # Use a header file that comes with gcc, so configuring glibc + # with a fresh cross-compiler works. + # Prefer to if __STDC__ is defined, since + # exists even on freestanding compilers. + # On the NeXT, cc -E runs the code through the compiler's parser, + # not just through cpp. "Syntax error" is here to catch this case. + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#ifdef __STDC__ +# include +#else +# include +#endif + Syntax error +_ACEOF +if ac_fn_c_try_cpp "$LINENO"; then : + +else + # Broken: fails on valid input. +continue +fi +rm -f conftest.err conftest.i conftest.$ac_ext + + # OK, works on sane cases. Now check whether nonexistent headers + # can be detected and how. + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#include +_ACEOF +if ac_fn_c_try_cpp "$LINENO"; then : + # Broken: success on invalid input. +continue +else + # Passes both tests. +ac_preproc_ok=: +break +fi +rm -f conftest.err conftest.i conftest.$ac_ext + +done +# Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped. +rm -f conftest.i conftest.err conftest.$ac_ext +if $ac_preproc_ok; then : + break +fi + + done + ac_cv_prog_CPP=$CPP + +fi + CPP=$ac_cv_prog_CPP +else + ac_cv_prog_CPP=$CPP +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $CPP" >&5 +$as_echo "$CPP" >&6; } +ac_preproc_ok=false +for ac_c_preproc_warn_flag in '' yes +do + # Use a header file that comes with gcc, so configuring glibc + # with a fresh cross-compiler works. + # Prefer to if __STDC__ is defined, since + # exists even on freestanding compilers. + # On the NeXT, cc -E runs the code through the compiler's parser, + # not just through cpp. "Syntax error" is here to catch this case. + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#ifdef __STDC__ +# include +#else +# include +#endif + Syntax error +_ACEOF +if ac_fn_c_try_cpp "$LINENO"; then : + +else + # Broken: fails on valid input. +continue +fi +rm -f conftest.err conftest.i conftest.$ac_ext + + # OK, works on sane cases. Now check whether nonexistent headers + # can be detected and how. + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#include +_ACEOF +if ac_fn_c_try_cpp "$LINENO"; then : + # Broken: success on invalid input. +continue +else + # Passes both tests. +ac_preproc_ok=: +break +fi +rm -f conftest.err conftest.i conftest.$ac_ext + +done +# Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped. +rm -f conftest.i conftest.err conftest.$ac_ext +if $ac_preproc_ok; then : + +else + { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5 +$as_echo "$as_me: error: in \`$ac_pwd':" >&2;} +as_fn_error $? "C preprocessor \"$CPP\" fails sanity check +See \`config.log' for more details" "$LINENO" 5; } +fi + +ac_ext=c +ac_cpp='$CPP $CPPFLAGS' +ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5' +ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' +ac_compiler_gnu=$ac_cv_c_compiler_gnu + + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether ${MAKE-make} sets \$(MAKE)" >&5 +$as_echo_n "checking whether ${MAKE-make} sets \$(MAKE)... " >&6; } +set x ${MAKE-make} +ac_make=`$as_echo "$2" | sed 's/+/p/g; s/[^a-zA-Z0-9_]/_/g'` +if eval \${ac_cv_prog_make_${ac_make}_set+:} false; then : + $as_echo_n "(cached) " >&6 +else + cat >conftest.make <<\_ACEOF +SHELL = /bin/sh +all: + @echo '@@@%%%=$(MAKE)=@@@%%%' +_ACEOF +# GNU make sometimes prints "make[1]: Entering ...", which would confuse us. +case `${MAKE-make} -f conftest.make 2>/dev/null` in + *@@@%%%=?*=@@@%%%*) + eval ac_cv_prog_make_${ac_make}_set=yes;; + *) + eval ac_cv_prog_make_${ac_make}_set=no;; +esac +rm -f conftest.make +fi +if eval test \$ac_cv_prog_make_${ac_make}_set = yes; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 +$as_echo "yes" >&6; } + SET_MAKE= +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } + SET_MAKE="MAKE=${MAKE-make}" +fi + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether ln -s works" >&5 +$as_echo_n "checking whether ln -s works... " >&6; } +LN_S=$as_ln_s +if test "$LN_S" = "ln -s"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 +$as_echo "yes" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no, using $LN_S" >&5 +$as_echo "no, using $LN_S" >&6; } +fi + + +# Check if LD supports linker scripts, +# and define automake conditional HAVE_LD_VERSION_SCRIPT if so. +# Check whether --enable-ld-version-script was given. +if test "${enable_ld_version_script+set}" = set; then : + enableval=$enable_ld_version_script; have_ld_version_script=$enableval +fi + +if test -z "$have_ld_version_script"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: checking if LD -Wl,--version-script works" >&5 +$as_echo_n "checking if LD -Wl,--version-script works... " >&6; } + save_LDFLAGS="$LDFLAGS" + LDFLAGS="$LDFLAGS -Wl,--version-script=conftest.map" + cat > conftest.map <conftest.$ac_ext +/* end confdefs.h. */ + +int +main () +{ + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_link "$LINENO"; then : + have_ld_version_script=yes +else + have_ld_version_script=no +fi +rm -f core conftest.err conftest.$ac_objext \ + conftest$ac_exeext conftest.$ac_ext + rm -f conftest.map + LDFLAGS="$save_LDFLAGS" + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $have_ld_version_script" >&5 +$as_echo "$have_ld_version_script" >&6; } +fi + if test "$have_ld_version_script" = "yes"; then + HAVE_LD_VERSION_SCRIPT_TRUE= + HAVE_LD_VERSION_SCRIPT_FALSE='#' +else + HAVE_LD_VERSION_SCRIPT_TRUE='#' + HAVE_LD_VERSION_SCRIPT_FALSE= +fi + + +# See if compiler supports prototypes. +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for function prototypes" >&5 +$as_echo_n "checking for function prototypes... " >&6; } +if ${ijg_cv_have_prototypes+:} false; then : + $as_echo_n "(cached) " >&6 +else + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +int testfunction (int arg1, int * arg2); /* check prototypes */ +struct methods_struct { /* check method-pointer declarations */ + int (*error_exit) (char *msgtext); + int (*trace_message) (char *msgtext); + int (*another_method) (void); +}; +int testfunction (int arg1, int * arg2) /* check definitions */ +{ return arg2[arg1]; } +int test2function (void) /* check void arg list */ +{ return 0; } + +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + ijg_cv_have_prototypes=yes +else + ijg_cv_have_prototypes=no +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext +fi + +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ijg_cv_have_prototypes" >&5 +$as_echo "$ijg_cv_have_prototypes" >&6; } +if test $ijg_cv_have_prototypes = yes; then + +$as_echo "#define HAVE_PROTOTYPES 1" >>confdefs.h + +else + { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: Your compiler does not seem to know about function prototypes. + Perhaps it needs a special switch to enable ANSI C mode. + If so, we recommend running configure like this: + ./configure CC='cc -switch' + where -switch is the proper switch." >&5 +$as_echo "$as_me: WARNING: Your compiler does not seem to know about function prototypes. + Perhaps it needs a special switch to enable ANSI C mode. + If so, we recommend running configure like this: + ./configure CC='cc -switch' + where -switch is the proper switch." >&2;} +fi + +# Check header files +for ac_header in stddef.h stdlib.h locale.h +do : + as_ac_Header=`$as_echo "ac_cv_header_$ac_header" | $as_tr_sh` +ac_fn_c_check_header_mongrel "$LINENO" "$ac_header" "$as_ac_Header" "$ac_includes_default" +if eval test \"x\$"$as_ac_Header"\" = x"yes"; then : + cat >>confdefs.h <<_ACEOF +#define `$as_echo "HAVE_$ac_header" | $as_tr_cpp` 1 +_ACEOF + +fi + +done + +ac_fn_c_check_header_mongrel "$LINENO" "string.h" "ac_cv_header_string_h" "$ac_includes_default" +if test "x$ac_cv_header_string_h" = xyes; then : + +else + +$as_echo "#define NEED_BSD_STRINGS 1" >>confdefs.h + +fi + + + +# See whether type size_t is defined in any ANSI-standard places; +# if not, perhaps it is defined in . +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for size_t" >&5 +$as_echo_n "checking for size_t... " >&6; } +cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +#ifdef HAVE_STDDEF_H +#include +#endif +#ifdef HAVE_STDLIB_H +#include +#endif +#include +#ifdef NEED_BSD_STRINGS +#include +#else +#include +#endif +typedef size_t my_size_t; + +int +main () +{ + my_size_t foovar; + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + ijg_size_t_ok=yes +else + ijg_size_t_ok="not ANSI, perhaps it is in sys/types.h" +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ijg_size_t_ok" >&5 +$as_echo "$ijg_size_t_ok" >&6; } +if test "$ijg_size_t_ok" != yes; then + ac_fn_c_check_header_mongrel "$LINENO" "sys/types.h" "ac_cv_header_sys_types_h" "$ac_includes_default" +if test "x$ac_cv_header_sys_types_h" = xyes; then : + +$as_echo "#define NEED_SYS_TYPES_H 1" >>confdefs.h + + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#include +_ACEOF +if (eval "$ac_cpp conftest.$ac_ext") 2>&5 | + $EGREP "size_t" >/dev/null 2>&1; then : + ijg_size_t_ok="size_t is in sys/types.h" +else + ijg_size_t_ok=no +fi +rm -f conftest* + +else + ijg_size_t_ok=no +fi + + + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ijg_size_t_ok" >&5 +$as_echo "$ijg_size_t_ok" >&6; } + if test "$ijg_size_t_ok" = no; then + { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: Type size_t is not defined in any of the usual places. + Try putting '\"typedef unsigned int size_t;\"' in jconfig.h." >&5 +$as_echo "$as_me: WARNING: Type size_t is not defined in any of the usual places. + Try putting '\"typedef unsigned int size_t;\"' in jconfig.h." >&2;} + fi +fi + +# Check compiler characteristics +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for type unsigned char" >&5 +$as_echo_n "checking for type unsigned char... " >&6; } +cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +int +main () +{ + unsigned char un_char; + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 +$as_echo "yes" >&6; } + +$as_echo "#define HAVE_UNSIGNED_CHAR 1" >>confdefs.h + +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for type unsigned short" >&5 +$as_echo_n "checking for type unsigned short... " >&6; } +cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +int +main () +{ + unsigned short un_short; + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 +$as_echo "yes" >&6; } + +$as_echo "#define HAVE_UNSIGNED_SHORT 1" >>confdefs.h + +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for type void" >&5 +$as_echo_n "checking for type void... " >&6; } +cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +/* Caution: a C++ compiler will insist on valid prototypes */ +typedef void * void_ptr; /* check void * */ +#ifdef HAVE_PROTOTYPES /* check ptr to function returning void */ +typedef void (*void_func) (int a, int b); +#else +typedef void (*void_func) (); +#endif + +#ifdef HAVE_PROTOTYPES /* check void function result */ +void test3function (void_ptr arg1, void_func arg2) +#else +void test3function (arg1, arg2) + void_ptr arg1; + void_func arg2; +#endif +{ + char * locptr = (char *) arg1; /* check casting to and from void * */ + arg1 = (void *) locptr; + (*arg2) (1, 2); /* check call of fcn returning void */ +} + +int +main () +{ + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 +$as_echo "yes" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } + +$as_echo "#define void char" >>confdefs.h + +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for an ANSI C-conforming const" >&5 +$as_echo_n "checking for an ANSI C-conforming const... " >&6; } +if ${ac_cv_c_const+:} false; then : + $as_echo_n "(cached) " >&6 +else + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +int +main () +{ +/* FIXME: Include the comments suggested by Paul. */ +#ifndef __cplusplus + /* Ultrix mips cc rejects this. */ + typedef int charset[2]; + const charset cs; + /* SunOS 4.1.1 cc rejects this. */ + char const *const *pcpcc; + char **ppc; + /* NEC SVR4.0.2 mips cc rejects this. */ + struct point {int x, y;}; + static struct point const zero = {0,0}; + /* AIX XL C 1.02.0.0 rejects this. + It does not let you subtract one const X* pointer from another in + an arm of an if-expression whose if-part is not a constant + expression */ + const char *g = "string"; + pcpcc = &g + (g ? g-g : 0); + /* HPUX 7.0 cc rejects these. */ + ++pcpcc; + ppc = (char**) pcpcc; + pcpcc = (char const *const *) ppc; + { /* SCO 3.2v4 cc rejects this. */ + char *t; + char const *s = 0 ? (char *) 0 : (char const *) 0; + + *t++ = 0; + if (s) return 0; + } + { /* Someone thinks the Sun supposedly-ANSI compiler will reject this. */ + int x[] = {25, 17}; + const int *foo = &x[0]; + ++foo; + } + { /* Sun SC1.0 ANSI compiler rejects this -- but not the above. */ + typedef const int *iptr; + iptr p = 0; + ++p; + } + { /* AIX XL C 1.02.0.0 rejects this saying + "k.c", line 2.27: 1506-025 (S) Operand must be a modifiable lvalue. */ + struct s { int j; const int *ap[3]; }; + struct s *b; b->j = 5; + } + { /* ULTRIX-32 V3.1 (Rev 9) vcc rejects this */ + const int foo = 10; + if (!foo) return 0; + } + return !cs[0] && !zero.x; +#endif + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + ac_cv_c_const=yes +else + ac_cv_c_const=no +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_c_const" >&5 +$as_echo "$ac_cv_c_const" >&6; } +if test $ac_cv_c_const = no; then + +$as_echo "#define const /**/" >>confdefs.h + +fi + + +# Check for non-broken inline under various spellings +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for inline" >&5 +$as_echo_n "checking for inline... " >&6; } +ijg_cv_inline="" +cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +int +main () +{ +} __inline__ int foo() { return 0; } +int bar() { return foo(); + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + ijg_cv_inline="__inline__" +else + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +int +main () +{ +} __inline int foo() { return 0; } +int bar() { return foo(); + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + ijg_cv_inline="__inline" +else + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +int +main () +{ +} inline int foo() { return 0; } +int bar() { return foo(); + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + ijg_cv_inline="inline" +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ijg_cv_inline" >&5 +$as_echo "$ijg_cv_inline" >&6; } + +cat >>confdefs.h <<_ACEOF +#define INLINE $ijg_cv_inline +_ACEOF + + +# We cannot check for bogus warnings, but at least we can check for errors +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for broken incomplete types" >&5 +$as_echo_n "checking for broken incomplete types... " >&6; } +cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + typedef struct undefined_structure * undef_struct_ptr; +int +main () +{ + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + { $as_echo "$as_me:${as_lineno-$LINENO}: result: ok" >&5 +$as_echo "ok" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: broken" >&5 +$as_echo "broken" >&6; } + +$as_echo "#define INCOMPLETE_TYPES_BROKEN 1" >>confdefs.h + +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext + +# Test whether global names are unique to at least 15 chars +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for short external names" >&5 +$as_echo_n "checking for short external names... " >&6; } +cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +int possibly_duplicate_function () { return 0; } +int possibly_dupli_function () { return 1; } + +int +main () +{ + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_link "$LINENO"; then : + { $as_echo "$as_me:${as_lineno-$LINENO}: result: ok" >&5 +$as_echo "ok" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: short" >&5 +$as_echo "short" >&6; } + +$as_echo "#define NEED_SHORT_EXTERNAL_NAMES 1" >>confdefs.h + +fi +rm -f core conftest.err conftest.$ac_objext \ + conftest$ac_exeext conftest.$ac_ext + +# Run-time checks +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking to see if char is signed" >&5 +$as_echo_n "checking to see if char is signed... " >&6; } +if test "$cross_compiling" = yes; then : + { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: Assuming that char is signed on target machine. + If it is unsigned, this will be a little bit inefficient." >&5 +$as_echo "$as_me: WARNING: Assuming that char is signed on target machine. + If it is unsigned, this will be a little bit inefficient." >&2;} + +else + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +#ifdef HAVE_PROTOTYPES +int is_char_signed (int arg) +#else +int is_char_signed (arg) + int arg; +#endif +{ + if (arg == 189) { /* expected result for unsigned char */ + return 0; /* type char is unsigned */ + } + else if (arg != -67) { /* expected result for signed char */ + printf("Hmm, it seems 'char' is not eight bits wide on your machine.\n"); + printf("I fear the JPEG software will not work at all.\n\n"); + } + return 1; /* assume char is signed otherwise */ +} +char signed_char_check = (char) (-67); +int main() { + exit(is_char_signed((int) signed_char_check)); +} +_ACEOF +if ac_fn_c_try_run "$LINENO"; then : + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } + +$as_echo "#define CHAR_IS_UNSIGNED 1" >>confdefs.h + +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 +$as_echo "yes" >&6; } +fi +rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \ + conftest.$ac_objext conftest.beam conftest.$ac_ext +fi + + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking to see if right shift is signed" >&5 +$as_echo_n "checking to see if right shift is signed... " >&6; } +if test "$cross_compiling" = yes; then : + { $as_echo "$as_me:${as_lineno-$LINENO}: result: Assuming that right shift is signed on target machine." >&5 +$as_echo "Assuming that right shift is signed on target machine." >&6; } +else + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +#ifdef HAVE_PROTOTYPES +int is_shifting_signed (long arg) +#else +int is_shifting_signed (arg) + long arg; +#endif +/* See whether right-shift on a long is signed or not. */ +{ + long res = arg >> 4; + + if (res == -0x7F7E80CL) { /* expected result for signed shift */ + return 1; /* right shift is signed */ + } + /* see if unsigned-shift hack will fix it. */ + /* we can't just test exact value since it depends on width of long... */ + res |= (~0L) << (32-4); + if (res == -0x7F7E80CL) { /* expected result now? */ + return 0; /* right shift is unsigned */ + } + printf("Right shift isn't acting as I expect it to.\n"); + printf("I fear the JPEG software will not work at all.\n\n"); + return 0; /* try it with unsigned anyway */ +} +int main() { + exit(is_shifting_signed(-0x7F7E80B1L)); +} +_ACEOF +if ac_fn_c_try_run "$LINENO"; then : + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } + +$as_echo "#define RIGHT_SHIFT_IS_UNSIGNED 1" >>confdefs.h + +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 +$as_echo "yes" >&6; } +fi +rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \ + conftest.$ac_objext conftest.beam conftest.$ac_ext +fi + + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking to see if fopen accepts b spec" >&5 +$as_echo_n "checking to see if fopen accepts b spec... " >&6; } +if test "$cross_compiling" = yes; then : + { $as_echo "$as_me:${as_lineno-$LINENO}: result: Assuming that it does." >&5 +$as_echo "Assuming that it does." >&6; } +else + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +#include +int main() { + if (fopen("conftestdata", "wb") != NULL) + exit(0); + exit(1); +} +_ACEOF +if ac_fn_c_try_run "$LINENO"; then : + { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 +$as_echo "yes" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } + +$as_echo "#define DONT_USE_B_MODE 1" >>confdefs.h + +fi +rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \ + conftest.$ac_objext conftest.beam conftest.$ac_ext +fi + + +# Configure libtool +enable_win32_dll=yes + +case $host in +*-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-cegcc*) + if test -n "$ac_tool_prefix"; then + # Extract the first word of "${ac_tool_prefix}as", so it can be a program name with args. +set dummy ${ac_tool_prefix}as; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_AS+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$AS"; then + ac_cv_prog_AS="$AS" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then + ac_cv_prog_AS="${ac_tool_prefix}as" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +AS=$ac_cv_prog_AS +if test -n "$AS"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $AS" >&5 +$as_echo "$AS" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + +fi +if test -z "$ac_cv_prog_AS"; then + ac_ct_AS=$AS + # Extract the first word of "as", so it can be a program name with args. +set dummy as; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_ac_ct_AS+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$ac_ct_AS"; then + ac_cv_prog_ac_ct_AS="$ac_ct_AS" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then + ac_cv_prog_ac_ct_AS="as" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +ac_ct_AS=$ac_cv_prog_ac_ct_AS +if test -n "$ac_ct_AS"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_AS" >&5 +$as_echo "$ac_ct_AS" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + if test "x$ac_ct_AS" = x; then + AS="false" + else + case $cross_compiling:$ac_tool_warned in +yes:) +{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 +$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} +ac_tool_warned=yes ;; +esac + AS=$ac_ct_AS + fi +else + AS="$ac_cv_prog_AS" +fi + + if test -n "$ac_tool_prefix"; then + # Extract the first word of "${ac_tool_prefix}dlltool", so it can be a program name with args. +set dummy ${ac_tool_prefix}dlltool; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_DLLTOOL+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$DLLTOOL"; then + ac_cv_prog_DLLTOOL="$DLLTOOL" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then + ac_cv_prog_DLLTOOL="${ac_tool_prefix}dlltool" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +DLLTOOL=$ac_cv_prog_DLLTOOL +if test -n "$DLLTOOL"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $DLLTOOL" >&5 +$as_echo "$DLLTOOL" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + +fi +if test -z "$ac_cv_prog_DLLTOOL"; then + ac_ct_DLLTOOL=$DLLTOOL + # Extract the first word of "dlltool", so it can be a program name with args. +set dummy dlltool; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_ac_ct_DLLTOOL+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$ac_ct_DLLTOOL"; then + ac_cv_prog_ac_ct_DLLTOOL="$ac_ct_DLLTOOL" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then + ac_cv_prog_ac_ct_DLLTOOL="dlltool" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +ac_ct_DLLTOOL=$ac_cv_prog_ac_ct_DLLTOOL +if test -n "$ac_ct_DLLTOOL"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_DLLTOOL" >&5 +$as_echo "$ac_ct_DLLTOOL" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + if test "x$ac_ct_DLLTOOL" = x; then + DLLTOOL="false" + else + case $cross_compiling:$ac_tool_warned in +yes:) +{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 +$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} +ac_tool_warned=yes ;; +esac + DLLTOOL=$ac_ct_DLLTOOL + fi +else + DLLTOOL="$ac_cv_prog_DLLTOOL" +fi + + if test -n "$ac_tool_prefix"; then + # Extract the first word of "${ac_tool_prefix}objdump", so it can be a program name with args. +set dummy ${ac_tool_prefix}objdump; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_OBJDUMP+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$OBJDUMP"; then + ac_cv_prog_OBJDUMP="$OBJDUMP" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then + ac_cv_prog_OBJDUMP="${ac_tool_prefix}objdump" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +OBJDUMP=$ac_cv_prog_OBJDUMP +if test -n "$OBJDUMP"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $OBJDUMP" >&5 +$as_echo "$OBJDUMP" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + +fi +if test -z "$ac_cv_prog_OBJDUMP"; then + ac_ct_OBJDUMP=$OBJDUMP + # Extract the first word of "objdump", so it can be a program name with args. +set dummy objdump; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_ac_ct_OBJDUMP+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$ac_ct_OBJDUMP"; then + ac_cv_prog_ac_ct_OBJDUMP="$ac_ct_OBJDUMP" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then + ac_cv_prog_ac_ct_OBJDUMP="objdump" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +ac_ct_OBJDUMP=$ac_cv_prog_ac_ct_OBJDUMP +if test -n "$ac_ct_OBJDUMP"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_OBJDUMP" >&5 +$as_echo "$ac_ct_OBJDUMP" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + if test "x$ac_ct_OBJDUMP" = x; then + OBJDUMP="false" + else + case $cross_compiling:$ac_tool_warned in +yes:) +{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 +$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} +ac_tool_warned=yes ;; +esac + OBJDUMP=$ac_ct_OBJDUMP + fi +else + OBJDUMP="$ac_cv_prog_OBJDUMP" +fi + + ;; +esac + +test -z "$AS" && AS=as + + + + + +test -z "$DLLTOOL" && DLLTOOL=dlltool + + + + + +test -z "$OBJDUMP" && OBJDUMP=objdump + + + + + + + +case `pwd` in + *\ * | *\ *) + { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: Libtool does not cope well with whitespace in \`pwd\`" >&5 +$as_echo "$as_me: WARNING: Libtool does not cope well with whitespace in \`pwd\`" >&2;} ;; +esac + + + +macro_version='2.4.2' +macro_revision='1.3337' + + + + + + + + + + + + + +ltmain="$ac_aux_dir/ltmain.sh" + +# Backslashify metacharacters that are still active within +# double-quoted strings. +sed_quote_subst='s/\(["`$\\]\)/\\\1/g' + +# Same as above, but do not quote variable references. +double_quote_subst='s/\(["`\\]\)/\\\1/g' + +# Sed substitution to delay expansion of an escaped shell variable in a +# double_quote_subst'ed string. +delay_variable_subst='s/\\\\\\\\\\\$/\\\\\\$/g' + +# Sed substitution to delay expansion of an escaped single quote. +delay_single_quote_subst='s/'\''/'\'\\\\\\\'\''/g' + +# Sed substitution to avoid accidental globbing in evaled expressions +no_glob_subst='s/\*/\\\*/g' + +ECHO='\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\' +ECHO=$ECHO$ECHO$ECHO$ECHO$ECHO +ECHO=$ECHO$ECHO$ECHO$ECHO$ECHO$ECHO + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking how to print strings" >&5 +$as_echo_n "checking how to print strings... " >&6; } +# Test print first, because it will be a builtin if present. +if test "X`( print -r -- -n ) 2>/dev/null`" = X-n && \ + test "X`print -r -- $ECHO 2>/dev/null`" = "X$ECHO"; then + ECHO='print -r --' +elif test "X`printf %s $ECHO 2>/dev/null`" = "X$ECHO"; then + ECHO='printf %s\n' +else + # Use this function as a fallback that always works. + func_fallback_echo () + { + eval 'cat <<_LTECHO_EOF +$1 +_LTECHO_EOF' + } + ECHO='func_fallback_echo' +fi + +# func_echo_all arg... +# Invoke $ECHO with all args, space-separated. +func_echo_all () +{ + $ECHO "" +} + +case "$ECHO" in + printf*) { $as_echo "$as_me:${as_lineno-$LINENO}: result: printf" >&5 +$as_echo "printf" >&6; } ;; + print*) { $as_echo "$as_me:${as_lineno-$LINENO}: result: print -r" >&5 +$as_echo "print -r" >&6; } ;; + *) { $as_echo "$as_me:${as_lineno-$LINENO}: result: cat" >&5 +$as_echo "cat" >&6; } ;; +esac + + + + + + + + + + + + + + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for a sed that does not truncate output" >&5 +$as_echo_n "checking for a sed that does not truncate output... " >&6; } +if ${ac_cv_path_SED+:} false; then : + $as_echo_n "(cached) " >&6 +else + ac_script=s/aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa/bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb/ + for ac_i in 1 2 3 4 5 6 7; do + ac_script="$ac_script$as_nl$ac_script" + done + echo "$ac_script" 2>/dev/null | sed 99q >conftest.sed + { ac_script=; unset ac_script;} + if test -z "$SED"; then + ac_path_SED_found=false + # Loop through the user's path and test for each of PROGNAME-LIST + as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_prog in sed gsed; do + for ac_exec_ext in '' $ac_executable_extensions; do + ac_path_SED="$as_dir/$ac_prog$ac_exec_ext" + { test -f "$ac_path_SED" && $as_test_x "$ac_path_SED"; } || continue +# Check for GNU ac_path_SED and select it if it is found. + # Check for GNU $ac_path_SED +case `"$ac_path_SED" --version 2>&1` in +*GNU*) + ac_cv_path_SED="$ac_path_SED" ac_path_SED_found=:;; +*) + ac_count=0 + $as_echo_n 0123456789 >"conftest.in" + while : + do + cat "conftest.in" "conftest.in" >"conftest.tmp" + mv "conftest.tmp" "conftest.in" + cp "conftest.in" "conftest.nl" + $as_echo '' >> "conftest.nl" + "$ac_path_SED" -f conftest.sed < "conftest.nl" >"conftest.out" 2>/dev/null || break + diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break + as_fn_arith $ac_count + 1 && ac_count=$as_val + if test $ac_count -gt ${ac_path_SED_max-0}; then + # Best one so far, save it but keep looking for a better one + ac_cv_path_SED="$ac_path_SED" + ac_path_SED_max=$ac_count + fi + # 10*(2^10) chars as input seems more than enough + test $ac_count -gt 10 && break + done + rm -f conftest.in conftest.tmp conftest.nl conftest.out;; +esac + + $ac_path_SED_found && break 3 + done + done + done +IFS=$as_save_IFS + if test -z "$ac_cv_path_SED"; then + as_fn_error $? "no acceptable sed could be found in \$PATH" "$LINENO" 5 + fi +else + ac_cv_path_SED=$SED +fi + +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_SED" >&5 +$as_echo "$ac_cv_path_SED" >&6; } + SED="$ac_cv_path_SED" + rm -f conftest.sed + +test -z "$SED" && SED=sed +Xsed="$SED -e 1s/^X//" + + + + + + + + + + + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for fgrep" >&5 +$as_echo_n "checking for fgrep... " >&6; } +if ${ac_cv_path_FGREP+:} false; then : + $as_echo_n "(cached) " >&6 +else + if echo 'ab*c' | $GREP -F 'ab*c' >/dev/null 2>&1 + then ac_cv_path_FGREP="$GREP -F" + else + if test -z "$FGREP"; then + ac_path_FGREP_found=false + # Loop through the user's path and test for each of PROGNAME-LIST + as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH$PATH_SEPARATOR/usr/xpg4/bin +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_prog in fgrep; do + for ac_exec_ext in '' $ac_executable_extensions; do + ac_path_FGREP="$as_dir/$ac_prog$ac_exec_ext" + { test -f "$ac_path_FGREP" && $as_test_x "$ac_path_FGREP"; } || continue +# Check for GNU ac_path_FGREP and select it if it is found. + # Check for GNU $ac_path_FGREP +case `"$ac_path_FGREP" --version 2>&1` in +*GNU*) + ac_cv_path_FGREP="$ac_path_FGREP" ac_path_FGREP_found=:;; +*) + ac_count=0 + $as_echo_n 0123456789 >"conftest.in" + while : + do + cat "conftest.in" "conftest.in" >"conftest.tmp" + mv "conftest.tmp" "conftest.in" + cp "conftest.in" "conftest.nl" + $as_echo 'FGREP' >> "conftest.nl" + "$ac_path_FGREP" FGREP < "conftest.nl" >"conftest.out" 2>/dev/null || break + diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break + as_fn_arith $ac_count + 1 && ac_count=$as_val + if test $ac_count -gt ${ac_path_FGREP_max-0}; then + # Best one so far, save it but keep looking for a better one + ac_cv_path_FGREP="$ac_path_FGREP" + ac_path_FGREP_max=$ac_count + fi + # 10*(2^10) chars as input seems more than enough + test $ac_count -gt 10 && break + done + rm -f conftest.in conftest.tmp conftest.nl conftest.out;; +esac + + $ac_path_FGREP_found && break 3 + done + done + done +IFS=$as_save_IFS + if test -z "$ac_cv_path_FGREP"; then + as_fn_error $? "no acceptable fgrep could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" "$LINENO" 5 + fi +else + ac_cv_path_FGREP=$FGREP +fi + + fi +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_FGREP" >&5 +$as_echo "$ac_cv_path_FGREP" >&6; } + FGREP="$ac_cv_path_FGREP" + + +test -z "$GREP" && GREP=grep + + + + + + + + + + + + + + + + + + + +# Check whether --with-gnu-ld was given. +if test "${with_gnu_ld+set}" = set; then : + withval=$with_gnu_ld; test "$withval" = no || with_gnu_ld=yes +else + with_gnu_ld=no +fi + +ac_prog=ld +if test "$GCC" = yes; then + # Check if gcc -print-prog-name=ld gives a path. + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ld used by $CC" >&5 +$as_echo_n "checking for ld used by $CC... " >&6; } + case $host in + *-*-mingw*) + # gcc leaves a trailing carriage return which upsets mingw + ac_prog=`($CC -print-prog-name=ld) 2>&5 | tr -d '\015'` ;; + *) + ac_prog=`($CC -print-prog-name=ld) 2>&5` ;; + esac + case $ac_prog in + # Accept absolute paths. + [\\/]* | ?:[\\/]*) + re_direlt='/[^/][^/]*/\.\./' + # Canonicalize the pathname of ld + ac_prog=`$ECHO "$ac_prog"| $SED 's%\\\\%/%g'` + while $ECHO "$ac_prog" | $GREP "$re_direlt" > /dev/null 2>&1; do + ac_prog=`$ECHO $ac_prog| $SED "s%$re_direlt%/%"` + done + test -z "$LD" && LD="$ac_prog" + ;; + "") + # If it fails, then pretend we aren't using GCC. + ac_prog=ld + ;; + *) + # If it is relative, then search for the first ld in PATH. + with_gnu_ld=unknown + ;; + esac +elif test "$with_gnu_ld" = yes; then + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for GNU ld" >&5 +$as_echo_n "checking for GNU ld... " >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for non-GNU ld" >&5 +$as_echo_n "checking for non-GNU ld... " >&6; } +fi +if ${lt_cv_path_LD+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -z "$LD"; then + lt_save_ifs="$IFS"; IFS=$PATH_SEPARATOR + for ac_dir in $PATH; do + IFS="$lt_save_ifs" + test -z "$ac_dir" && ac_dir=. + if test -f "$ac_dir/$ac_prog" || test -f "$ac_dir/$ac_prog$ac_exeext"; then + lt_cv_path_LD="$ac_dir/$ac_prog" + # Check to see if the program is GNU ld. I'd rather use --version, + # but apparently some variants of GNU ld only accept -v. + # Break only if it was the GNU/non-GNU ld that we prefer. + case `"$lt_cv_path_LD" -v 2>&1 &5 +$as_echo "$LD" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi +test -z "$LD" && as_fn_error $? "no acceptable ld found in \$PATH" "$LINENO" 5 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if the linker ($LD) is GNU ld" >&5 +$as_echo_n "checking if the linker ($LD) is GNU ld... " >&6; } +if ${lt_cv_prog_gnu_ld+:} false; then : + $as_echo_n "(cached) " >&6 +else + # I'd rather use --version here, but apparently some GNU lds only accept -v. +case `$LD -v 2>&1 &5 +$as_echo "$lt_cv_prog_gnu_ld" >&6; } +with_gnu_ld=$lt_cv_prog_gnu_ld + + + + + + + + + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for BSD- or MS-compatible name lister (nm)" >&5 +$as_echo_n "checking for BSD- or MS-compatible name lister (nm)... " >&6; } +if ${lt_cv_path_NM+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$NM"; then + # Let the user override the test. + lt_cv_path_NM="$NM" +else + lt_nm_to_check="${ac_tool_prefix}nm" + if test -n "$ac_tool_prefix" && test "$build" = "$host"; then + lt_nm_to_check="$lt_nm_to_check nm" + fi + for lt_tmp_nm in $lt_nm_to_check; do + lt_save_ifs="$IFS"; IFS=$PATH_SEPARATOR + for ac_dir in $PATH /usr/ccs/bin/elf /usr/ccs/bin /usr/ucb /bin; do + IFS="$lt_save_ifs" + test -z "$ac_dir" && ac_dir=. + tmp_nm="$ac_dir/$lt_tmp_nm" + if test -f "$tmp_nm" || test -f "$tmp_nm$ac_exeext" ; then + # Check to see if the nm accepts a BSD-compat flag. + # Adding the `sed 1q' prevents false positives on HP-UX, which says: + # nm: unknown option "B" ignored + # Tru64's nm complains that /dev/null is an invalid object file + case `"$tmp_nm" -B /dev/null 2>&1 | sed '1q'` in + */dev/null* | *'Invalid file or object type'*) + lt_cv_path_NM="$tmp_nm -B" + break + ;; + *) + case `"$tmp_nm" -p /dev/null 2>&1 | sed '1q'` in + */dev/null*) + lt_cv_path_NM="$tmp_nm -p" + break + ;; + *) + lt_cv_path_NM=${lt_cv_path_NM="$tmp_nm"} # keep the first match, but + continue # so that we can try to find one that supports BSD flags + ;; + esac + ;; + esac + fi + done + IFS="$lt_save_ifs" + done + : ${lt_cv_path_NM=no} +fi +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_path_NM" >&5 +$as_echo "$lt_cv_path_NM" >&6; } +if test "$lt_cv_path_NM" != "no"; then + NM="$lt_cv_path_NM" +else + # Didn't find any BSD compatible name lister, look for dumpbin. + if test -n "$DUMPBIN"; then : + # Let the user override the test. + else + if test -n "$ac_tool_prefix"; then + for ac_prog in dumpbin "link -dump" + do + # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args. +set dummy $ac_tool_prefix$ac_prog; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_DUMPBIN+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$DUMPBIN"; then + ac_cv_prog_DUMPBIN="$DUMPBIN" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then + ac_cv_prog_DUMPBIN="$ac_tool_prefix$ac_prog" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +DUMPBIN=$ac_cv_prog_DUMPBIN +if test -n "$DUMPBIN"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $DUMPBIN" >&5 +$as_echo "$DUMPBIN" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + + test -n "$DUMPBIN" && break + done +fi +if test -z "$DUMPBIN"; then + ac_ct_DUMPBIN=$DUMPBIN + for ac_prog in dumpbin "link -dump" +do + # Extract the first word of "$ac_prog", so it can be a program name with args. +set dummy $ac_prog; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_ac_ct_DUMPBIN+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$ac_ct_DUMPBIN"; then + ac_cv_prog_ac_ct_DUMPBIN="$ac_ct_DUMPBIN" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then + ac_cv_prog_ac_ct_DUMPBIN="$ac_prog" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +ac_ct_DUMPBIN=$ac_cv_prog_ac_ct_DUMPBIN +if test -n "$ac_ct_DUMPBIN"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_DUMPBIN" >&5 +$as_echo "$ac_ct_DUMPBIN" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + + test -n "$ac_ct_DUMPBIN" && break +done + + if test "x$ac_ct_DUMPBIN" = x; then + DUMPBIN=":" + else + case $cross_compiling:$ac_tool_warned in +yes:) +{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 +$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} +ac_tool_warned=yes ;; +esac + DUMPBIN=$ac_ct_DUMPBIN + fi +fi + + case `$DUMPBIN -symbols /dev/null 2>&1 | sed '1q'` in + *COFF*) + DUMPBIN="$DUMPBIN -symbols" + ;; + *) + DUMPBIN=: + ;; + esac + fi + + if test "$DUMPBIN" != ":"; then + NM="$DUMPBIN" + fi +fi +test -z "$NM" && NM=nm + + + + + + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking the name lister ($NM) interface" >&5 +$as_echo_n "checking the name lister ($NM) interface... " >&6; } +if ${lt_cv_nm_interface+:} false; then : + $as_echo_n "(cached) " >&6 +else + lt_cv_nm_interface="BSD nm" + echo "int some_variable = 0;" > conftest.$ac_ext + (eval echo "\"\$as_me:$LINENO: $ac_compile\"" >&5) + (eval "$ac_compile" 2>conftest.err) + cat conftest.err >&5 + (eval echo "\"\$as_me:$LINENO: $NM \\\"conftest.$ac_objext\\\"\"" >&5) + (eval "$NM \"conftest.$ac_objext\"" 2>conftest.err > conftest.out) + cat conftest.err >&5 + (eval echo "\"\$as_me:$LINENO: output\"" >&5) + cat conftest.out >&5 + if $GREP 'External.*some_variable' conftest.out > /dev/null; then + lt_cv_nm_interface="MS dumpbin" + fi + rm -f conftest* +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_nm_interface" >&5 +$as_echo "$lt_cv_nm_interface" >&6; } + +# find the maximum length of command line arguments +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking the maximum length of command line arguments" >&5 +$as_echo_n "checking the maximum length of command line arguments... " >&6; } +if ${lt_cv_sys_max_cmd_len+:} false; then : + $as_echo_n "(cached) " >&6 +else + i=0 + teststring="ABCD" + + case $build_os in + msdosdjgpp*) + # On DJGPP, this test can blow up pretty badly due to problems in libc + # (any single argument exceeding 2000 bytes causes a buffer overrun + # during glob expansion). Even if it were fixed, the result of this + # check would be larger than it should be. + lt_cv_sys_max_cmd_len=12288; # 12K is about right + ;; + + gnu*) + # Under GNU Hurd, this test is not required because there is + # no limit to the length of command line arguments. + # Libtool will interpret -1 as no limit whatsoever + lt_cv_sys_max_cmd_len=-1; + ;; + + cygwin* | mingw* | cegcc*) + # On Win9x/ME, this test blows up -- it succeeds, but takes + # about 5 minutes as the teststring grows exponentially. + # Worse, since 9x/ME are not pre-emptively multitasking, + # you end up with a "frozen" computer, even though with patience + # the test eventually succeeds (with a max line length of 256k). + # Instead, let's just punt: use the minimum linelength reported by + # all of the supported platforms: 8192 (on NT/2K/XP). + lt_cv_sys_max_cmd_len=8192; + ;; + + mint*) + # On MiNT this can take a long time and run out of memory. + lt_cv_sys_max_cmd_len=8192; + ;; + + amigaos*) + # On AmigaOS with pdksh, this test takes hours, literally. + # So we just punt and use a minimum line length of 8192. + lt_cv_sys_max_cmd_len=8192; + ;; + + netbsd* | freebsd* | openbsd* | darwin* | dragonfly*) + # This has been around since 386BSD, at least. Likely further. + if test -x /sbin/sysctl; then + lt_cv_sys_max_cmd_len=`/sbin/sysctl -n kern.argmax` + elif test -x /usr/sbin/sysctl; then + lt_cv_sys_max_cmd_len=`/usr/sbin/sysctl -n kern.argmax` + else + lt_cv_sys_max_cmd_len=65536 # usable default for all BSDs + fi + # And add a safety zone + lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \/ 4` + lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \* 3` + ;; + + interix*) + # We know the value 262144 and hardcode it with a safety zone (like BSD) + lt_cv_sys_max_cmd_len=196608 + ;; + + os2*) + # The test takes a long time on OS/2. + lt_cv_sys_max_cmd_len=8192 + ;; + + osf*) + # Dr. Hans Ekkehard Plesser reports seeing a kernel panic running configure + # due to this test when exec_disable_arg_limit is 1 on Tru64. It is not + # nice to cause kernel panics so lets avoid the loop below. + # First set a reasonable default. + lt_cv_sys_max_cmd_len=16384 + # + if test -x /sbin/sysconfig; then + case `/sbin/sysconfig -q proc exec_disable_arg_limit` in + *1*) lt_cv_sys_max_cmd_len=-1 ;; + esac + fi + ;; + sco3.2v5*) + lt_cv_sys_max_cmd_len=102400 + ;; + sysv5* | sco5v6* | sysv4.2uw2*) + kargmax=`grep ARG_MAX /etc/conf/cf.d/stune 2>/dev/null` + if test -n "$kargmax"; then + lt_cv_sys_max_cmd_len=`echo $kargmax | sed 's/.*[ ]//'` + else + lt_cv_sys_max_cmd_len=32768 + fi + ;; + *) + lt_cv_sys_max_cmd_len=`(getconf ARG_MAX) 2> /dev/null` + if test -n "$lt_cv_sys_max_cmd_len"; then + lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \/ 4` + lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \* 3` + else + # Make teststring a little bigger before we do anything with it. + # a 1K string should be a reasonable start. + for i in 1 2 3 4 5 6 7 8 ; do + teststring=$teststring$teststring + done + SHELL=${SHELL-${CONFIG_SHELL-/bin/sh}} + # If test is not a shell built-in, we'll probably end up computing a + # maximum length that is only half of the actual maximum length, but + # we can't tell. + while { test "X"`env echo "$teststring$teststring" 2>/dev/null` \ + = "X$teststring$teststring"; } >/dev/null 2>&1 && + test $i != 17 # 1/2 MB should be enough + do + i=`expr $i + 1` + teststring=$teststring$teststring + done + # Only check the string length outside the loop. + lt_cv_sys_max_cmd_len=`expr "X$teststring" : ".*" 2>&1` + teststring= + # Add a significant safety factor because C++ compilers can tack on + # massive amounts of additional arguments before passing them to the + # linker. It appears as though 1/2 is a usable value. + lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \/ 2` + fi + ;; + esac + +fi + +if test -n $lt_cv_sys_max_cmd_len ; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_sys_max_cmd_len" >&5 +$as_echo "$lt_cv_sys_max_cmd_len" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: none" >&5 +$as_echo "none" >&6; } +fi +max_cmd_len=$lt_cv_sys_max_cmd_len + + + + + + +: ${CP="cp -f"} +: ${MV="mv -f"} +: ${RM="rm -f"} + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the shell understands some XSI constructs" >&5 +$as_echo_n "checking whether the shell understands some XSI constructs... " >&6; } +# Try some XSI features +xsi_shell=no +( _lt_dummy="a/b/c" + test "${_lt_dummy##*/},${_lt_dummy%/*},${_lt_dummy#??}"${_lt_dummy%"$_lt_dummy"}, \ + = c,a/b,b/c, \ + && eval 'test $(( 1 + 1 )) -eq 2 \ + && test "${#_lt_dummy}" -eq 5' ) >/dev/null 2>&1 \ + && xsi_shell=yes +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xsi_shell" >&5 +$as_echo "$xsi_shell" >&6; } + + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the shell understands \"+=\"" >&5 +$as_echo_n "checking whether the shell understands \"+=\"... " >&6; } +lt_shell_append=no +( foo=bar; set foo baz; eval "$1+=\$2" && test "$foo" = barbaz ) \ + >/dev/null 2>&1 \ + && lt_shell_append=yes +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_shell_append" >&5 +$as_echo "$lt_shell_append" >&6; } + + +if ( (MAIL=60; unset MAIL) || exit) >/dev/null 2>&1; then + lt_unset=unset +else + lt_unset=false +fi + + + + + +# test EBCDIC or ASCII +case `echo X|tr X '\101'` in + A) # ASCII based system + # \n is not interpreted correctly by Solaris 8 /usr/ucb/tr + lt_SP2NL='tr \040 \012' + lt_NL2SP='tr \015\012 \040\040' + ;; + *) # EBCDIC based system + lt_SP2NL='tr \100 \n' + lt_NL2SP='tr \r\n \100\100' + ;; +esac + + + + + + + + + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking how to convert $build file names to $host format" >&5 +$as_echo_n "checking how to convert $build file names to $host format... " >&6; } +if ${lt_cv_to_host_file_cmd+:} false; then : + $as_echo_n "(cached) " >&6 +else + case $host in + *-*-mingw* ) + case $build in + *-*-mingw* ) # actually msys + lt_cv_to_host_file_cmd=func_convert_file_msys_to_w32 + ;; + *-*-cygwin* ) + lt_cv_to_host_file_cmd=func_convert_file_cygwin_to_w32 + ;; + * ) # otherwise, assume *nix + lt_cv_to_host_file_cmd=func_convert_file_nix_to_w32 + ;; + esac + ;; + *-*-cygwin* ) + case $build in + *-*-mingw* ) # actually msys + lt_cv_to_host_file_cmd=func_convert_file_msys_to_cygwin + ;; + *-*-cygwin* ) + lt_cv_to_host_file_cmd=func_convert_file_noop + ;; + * ) # otherwise, assume *nix + lt_cv_to_host_file_cmd=func_convert_file_nix_to_cygwin + ;; + esac + ;; + * ) # unhandled hosts (and "normal" native builds) + lt_cv_to_host_file_cmd=func_convert_file_noop + ;; +esac + +fi + +to_host_file_cmd=$lt_cv_to_host_file_cmd +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_to_host_file_cmd" >&5 +$as_echo "$lt_cv_to_host_file_cmd" >&6; } + + + + + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking how to convert $build file names to toolchain format" >&5 +$as_echo_n "checking how to convert $build file names to toolchain format... " >&6; } +if ${lt_cv_to_tool_file_cmd+:} false; then : + $as_echo_n "(cached) " >&6 +else + #assume ordinary cross tools, or native build. +lt_cv_to_tool_file_cmd=func_convert_file_noop +case $host in + *-*-mingw* ) + case $build in + *-*-mingw* ) # actually msys + lt_cv_to_tool_file_cmd=func_convert_file_msys_to_w32 + ;; + esac + ;; +esac + +fi + +to_tool_file_cmd=$lt_cv_to_tool_file_cmd +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_to_tool_file_cmd" >&5 +$as_echo "$lt_cv_to_tool_file_cmd" >&6; } + + + + + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $LD option to reload object files" >&5 +$as_echo_n "checking for $LD option to reload object files... " >&6; } +if ${lt_cv_ld_reload_flag+:} false; then : + $as_echo_n "(cached) " >&6 +else + lt_cv_ld_reload_flag='-r' +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_ld_reload_flag" >&5 +$as_echo "$lt_cv_ld_reload_flag" >&6; } +reload_flag=$lt_cv_ld_reload_flag +case $reload_flag in +"" | " "*) ;; +*) reload_flag=" $reload_flag" ;; +esac +reload_cmds='$LD$reload_flag -o $output$reload_objs' +case $host_os in + cygwin* | mingw* | pw32* | cegcc*) + if test "$GCC" != yes; then + reload_cmds=false + fi + ;; + darwin*) + if test "$GCC" = yes; then + reload_cmds='$LTCC $LTCFLAGS -nostdlib ${wl}-r -o $output$reload_objs' + else + reload_cmds='$LD$reload_flag -o $output$reload_objs' + fi + ;; +esac + + + + + + + + + +if test -n "$ac_tool_prefix"; then + # Extract the first word of "${ac_tool_prefix}objdump", so it can be a program name with args. +set dummy ${ac_tool_prefix}objdump; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_OBJDUMP+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$OBJDUMP"; then + ac_cv_prog_OBJDUMP="$OBJDUMP" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then + ac_cv_prog_OBJDUMP="${ac_tool_prefix}objdump" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +OBJDUMP=$ac_cv_prog_OBJDUMP +if test -n "$OBJDUMP"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $OBJDUMP" >&5 +$as_echo "$OBJDUMP" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + +fi +if test -z "$ac_cv_prog_OBJDUMP"; then + ac_ct_OBJDUMP=$OBJDUMP + # Extract the first word of "objdump", so it can be a program name with args. +set dummy objdump; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_ac_ct_OBJDUMP+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$ac_ct_OBJDUMP"; then + ac_cv_prog_ac_ct_OBJDUMP="$ac_ct_OBJDUMP" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then + ac_cv_prog_ac_ct_OBJDUMP="objdump" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +ac_ct_OBJDUMP=$ac_cv_prog_ac_ct_OBJDUMP +if test -n "$ac_ct_OBJDUMP"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_OBJDUMP" >&5 +$as_echo "$ac_ct_OBJDUMP" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + if test "x$ac_ct_OBJDUMP" = x; then + OBJDUMP="false" + else + case $cross_compiling:$ac_tool_warned in +yes:) +{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 +$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} +ac_tool_warned=yes ;; +esac + OBJDUMP=$ac_ct_OBJDUMP + fi +else + OBJDUMP="$ac_cv_prog_OBJDUMP" +fi + +test -z "$OBJDUMP" && OBJDUMP=objdump + + + + + + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking how to recognize dependent libraries" >&5 +$as_echo_n "checking how to recognize dependent libraries... " >&6; } +if ${lt_cv_deplibs_check_method+:} false; then : + $as_echo_n "(cached) " >&6 +else + lt_cv_file_magic_cmd='$MAGIC_CMD' +lt_cv_file_magic_test_file= +lt_cv_deplibs_check_method='unknown' +# Need to set the preceding variable on all platforms that support +# interlibrary dependencies. +# 'none' -- dependencies not supported. +# `unknown' -- same as none, but documents that we really don't know. +# 'pass_all' -- all dependencies passed with no checks. +# 'test_compile' -- check by making test program. +# 'file_magic [[regex]]' -- check by looking for files in library path +# which responds to the $file_magic_cmd with a given extended regex. +# If you have `file' or equivalent on your system and you're not sure +# whether `pass_all' will *always* work, you probably want this one. + +case $host_os in +aix[4-9]*) + lt_cv_deplibs_check_method=pass_all + ;; + +beos*) + lt_cv_deplibs_check_method=pass_all + ;; + +bsdi[45]*) + lt_cv_deplibs_check_method='file_magic ELF [0-9][0-9]*-bit [ML]SB (shared object|dynamic lib)' + lt_cv_file_magic_cmd='/usr/bin/file -L' + lt_cv_file_magic_test_file=/shlib/libc.so + ;; + +cygwin*) + # func_win32_libid is a shell function defined in ltmain.sh + lt_cv_deplibs_check_method='file_magic ^x86 archive import|^x86 DLL' + lt_cv_file_magic_cmd='func_win32_libid' + ;; + +mingw* | pw32*) + # Base MSYS/MinGW do not provide the 'file' command needed by + # func_win32_libid shell function, so use a weaker test based on 'objdump', + # unless we find 'file', for example because we are cross-compiling. + # func_win32_libid assumes BSD nm, so disallow it if using MS dumpbin. + if ( test "$lt_cv_nm_interface" = "BSD nm" && file / ) >/dev/null 2>&1; then + lt_cv_deplibs_check_method='file_magic ^x86 archive import|^x86 DLL' + lt_cv_file_magic_cmd='func_win32_libid' + else + # Keep this pattern in sync with the one in func_win32_libid. + lt_cv_deplibs_check_method='file_magic file format (pei*-i386(.*architecture: i386)?|pe-arm-wince|pe-x86-64)' + lt_cv_file_magic_cmd='$OBJDUMP -f' + fi + ;; + +cegcc*) + # use the weaker test based on 'objdump'. See mingw*. + lt_cv_deplibs_check_method='file_magic file format pe-arm-.*little(.*architecture: arm)?' + lt_cv_file_magic_cmd='$OBJDUMP -f' + ;; + +darwin* | rhapsody*) + lt_cv_deplibs_check_method=pass_all + ;; + +freebsd* | dragonfly*) + if echo __ELF__ | $CC -E - | $GREP __ELF__ > /dev/null; then + case $host_cpu in + i*86 ) + # Not sure whether the presence of OpenBSD here was a mistake. + # Let's accept both of them until this is cleared up. + lt_cv_deplibs_check_method='file_magic (FreeBSD|OpenBSD|DragonFly)/i[3-9]86 (compact )?demand paged shared library' + lt_cv_file_magic_cmd=/usr/bin/file + lt_cv_file_magic_test_file=`echo /usr/lib/libc.so.*` + ;; + esac + else + lt_cv_deplibs_check_method=pass_all + fi + ;; + +gnu*) + lt_cv_deplibs_check_method=pass_all + ;; + +haiku*) + lt_cv_deplibs_check_method=pass_all + ;; + +hpux10.20* | hpux11*) + lt_cv_file_magic_cmd=/usr/bin/file + case $host_cpu in + ia64*) + lt_cv_deplibs_check_method='file_magic (s[0-9][0-9][0-9]|ELF-[0-9][0-9]) shared object file - IA64' + lt_cv_file_magic_test_file=/usr/lib/hpux32/libc.so + ;; + hppa*64*) + lt_cv_deplibs_check_method='file_magic (s[0-9][0-9][0-9]|ELF[ -][0-9][0-9])(-bit)?( [LM]SB)? shared object( file)?[, -]* PA-RISC [0-9]\.[0-9]' + lt_cv_file_magic_test_file=/usr/lib/pa20_64/libc.sl + ;; + *) + lt_cv_deplibs_check_method='file_magic (s[0-9][0-9][0-9]|PA-RISC[0-9]\.[0-9]) shared library' + lt_cv_file_magic_test_file=/usr/lib/libc.sl + ;; + esac + ;; + +interix[3-9]*) + # PIC code is broken on Interix 3.x, that's why |\.a not |_pic\.a here + lt_cv_deplibs_check_method='match_pattern /lib[^/]+(\.so|\.a)$' + ;; + +irix5* | irix6* | nonstopux*) + case $LD in + *-32|*"-32 ") libmagic=32-bit;; + *-n32|*"-n32 ") libmagic=N32;; + *-64|*"-64 ") libmagic=64-bit;; + *) libmagic=never-match;; + esac + lt_cv_deplibs_check_method=pass_all + ;; + +# This must be glibc/ELF. +linux* | k*bsd*-gnu | kopensolaris*-gnu) + lt_cv_deplibs_check_method=pass_all + ;; + +netbsd*) + if echo __ELF__ | $CC -E - | $GREP __ELF__ > /dev/null; then + lt_cv_deplibs_check_method='match_pattern /lib[^/]+(\.so\.[0-9]+\.[0-9]+|_pic\.a)$' + else + lt_cv_deplibs_check_method='match_pattern /lib[^/]+(\.so|_pic\.a)$' + fi + ;; + +newos6*) + lt_cv_deplibs_check_method='file_magic ELF [0-9][0-9]*-bit [ML]SB (executable|dynamic lib)' + lt_cv_file_magic_cmd=/usr/bin/file + lt_cv_file_magic_test_file=/usr/lib/libnls.so + ;; + +*nto* | *qnx*) + lt_cv_deplibs_check_method=pass_all + ;; + +openbsd*) + if test -z "`echo __ELF__ | $CC -E - | $GREP __ELF__`" || test "$host_os-$host_cpu" = "openbsd2.8-powerpc"; then + lt_cv_deplibs_check_method='match_pattern /lib[^/]+(\.so\.[0-9]+\.[0-9]+|\.so|_pic\.a)$' + else + lt_cv_deplibs_check_method='match_pattern /lib[^/]+(\.so\.[0-9]+\.[0-9]+|_pic\.a)$' + fi + ;; + +osf3* | osf4* | osf5*) + lt_cv_deplibs_check_method=pass_all + ;; + +rdos*) + lt_cv_deplibs_check_method=pass_all + ;; + +solaris*) + lt_cv_deplibs_check_method=pass_all + ;; + +sysv5* | sco3.2v5* | sco5v6* | unixware* | OpenUNIX* | sysv4*uw2*) + lt_cv_deplibs_check_method=pass_all + ;; + +sysv4 | sysv4.3*) + case $host_vendor in + motorola) + lt_cv_deplibs_check_method='file_magic ELF [0-9][0-9]*-bit [ML]SB (shared object|dynamic lib) M[0-9][0-9]* Version [0-9]' + lt_cv_file_magic_test_file=`echo /usr/lib/libc.so*` + ;; + ncr) + lt_cv_deplibs_check_method=pass_all + ;; + sequent) + lt_cv_file_magic_cmd='/bin/file' + lt_cv_deplibs_check_method='file_magic ELF [0-9][0-9]*-bit [LM]SB (shared object|dynamic lib )' + ;; + sni) + lt_cv_file_magic_cmd='/bin/file' + lt_cv_deplibs_check_method="file_magic ELF [0-9][0-9]*-bit [LM]SB dynamic lib" + lt_cv_file_magic_test_file=/lib/libc.so + ;; + siemens) + lt_cv_deplibs_check_method=pass_all + ;; + pc) + lt_cv_deplibs_check_method=pass_all + ;; + esac + ;; + +tpf*) + lt_cv_deplibs_check_method=pass_all + ;; +esac + +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_deplibs_check_method" >&5 +$as_echo "$lt_cv_deplibs_check_method" >&6; } + +file_magic_glob= +want_nocaseglob=no +if test "$build" = "$host"; then + case $host_os in + mingw* | pw32*) + if ( shopt | grep nocaseglob ) >/dev/null 2>&1; then + want_nocaseglob=yes + else + file_magic_glob=`echo aAbBcCdDeEfFgGhHiIjJkKlLmMnNoOpPqQrRsStTuUvVwWxXyYzZ | $SED -e "s/\(..\)/s\/[\1]\/[\1]\/g;/g"` + fi + ;; + esac +fi + +file_magic_cmd=$lt_cv_file_magic_cmd +deplibs_check_method=$lt_cv_deplibs_check_method +test -z "$deplibs_check_method" && deplibs_check_method=unknown + + + + + + + + + + + + + + + + + + + + + + +if test -n "$ac_tool_prefix"; then + # Extract the first word of "${ac_tool_prefix}dlltool", so it can be a program name with args. +set dummy ${ac_tool_prefix}dlltool; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_DLLTOOL+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$DLLTOOL"; then + ac_cv_prog_DLLTOOL="$DLLTOOL" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then + ac_cv_prog_DLLTOOL="${ac_tool_prefix}dlltool" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +DLLTOOL=$ac_cv_prog_DLLTOOL +if test -n "$DLLTOOL"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $DLLTOOL" >&5 +$as_echo "$DLLTOOL" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + +fi +if test -z "$ac_cv_prog_DLLTOOL"; then + ac_ct_DLLTOOL=$DLLTOOL + # Extract the first word of "dlltool", so it can be a program name with args. +set dummy dlltool; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_ac_ct_DLLTOOL+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$ac_ct_DLLTOOL"; then + ac_cv_prog_ac_ct_DLLTOOL="$ac_ct_DLLTOOL" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then + ac_cv_prog_ac_ct_DLLTOOL="dlltool" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +ac_ct_DLLTOOL=$ac_cv_prog_ac_ct_DLLTOOL +if test -n "$ac_ct_DLLTOOL"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_DLLTOOL" >&5 +$as_echo "$ac_ct_DLLTOOL" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + if test "x$ac_ct_DLLTOOL" = x; then + DLLTOOL="false" + else + case $cross_compiling:$ac_tool_warned in +yes:) +{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 +$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} +ac_tool_warned=yes ;; +esac + DLLTOOL=$ac_ct_DLLTOOL + fi +else + DLLTOOL="$ac_cv_prog_DLLTOOL" +fi + +test -z "$DLLTOOL" && DLLTOOL=dlltool + + + + + + + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking how to associate runtime and link libraries" >&5 +$as_echo_n "checking how to associate runtime and link libraries... " >&6; } +if ${lt_cv_sharedlib_from_linklib_cmd+:} false; then : + $as_echo_n "(cached) " >&6 +else + lt_cv_sharedlib_from_linklib_cmd='unknown' + +case $host_os in +cygwin* | mingw* | pw32* | cegcc*) + # two different shell functions defined in ltmain.sh + # decide which to use based on capabilities of $DLLTOOL + case `$DLLTOOL --help 2>&1` in + *--identify-strict*) + lt_cv_sharedlib_from_linklib_cmd=func_cygming_dll_for_implib + ;; + *) + lt_cv_sharedlib_from_linklib_cmd=func_cygming_dll_for_implib_fallback + ;; + esac + ;; +*) + # fallback: assume linklib IS sharedlib + lt_cv_sharedlib_from_linklib_cmd="$ECHO" + ;; +esac + +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_sharedlib_from_linklib_cmd" >&5 +$as_echo "$lt_cv_sharedlib_from_linklib_cmd" >&6; } +sharedlib_from_linklib_cmd=$lt_cv_sharedlib_from_linklib_cmd +test -z "$sharedlib_from_linklib_cmd" && sharedlib_from_linklib_cmd=$ECHO + + + + + + + +if test -n "$ac_tool_prefix"; then + for ac_prog in ar + do + # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args. +set dummy $ac_tool_prefix$ac_prog; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_AR+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$AR"; then + ac_cv_prog_AR="$AR" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then + ac_cv_prog_AR="$ac_tool_prefix$ac_prog" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +AR=$ac_cv_prog_AR +if test -n "$AR"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $AR" >&5 +$as_echo "$AR" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + + test -n "$AR" && break + done +fi +if test -z "$AR"; then + ac_ct_AR=$AR + for ac_prog in ar +do + # Extract the first word of "$ac_prog", so it can be a program name with args. +set dummy $ac_prog; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_ac_ct_AR+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$ac_ct_AR"; then + ac_cv_prog_ac_ct_AR="$ac_ct_AR" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then + ac_cv_prog_ac_ct_AR="$ac_prog" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +ac_ct_AR=$ac_cv_prog_ac_ct_AR +if test -n "$ac_ct_AR"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_AR" >&5 +$as_echo "$ac_ct_AR" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + + test -n "$ac_ct_AR" && break +done + + if test "x$ac_ct_AR" = x; then + AR="false" + else + case $cross_compiling:$ac_tool_warned in +yes:) +{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 +$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} +ac_tool_warned=yes ;; +esac + AR=$ac_ct_AR + fi +fi + +: ${AR=ar} +: ${AR_FLAGS=cru} + + + + + + + + + + + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for archiver @FILE support" >&5 +$as_echo_n "checking for archiver @FILE support... " >&6; } +if ${lt_cv_ar_at_file+:} false; then : + $as_echo_n "(cached) " >&6 +else + lt_cv_ar_at_file=no + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +int +main () +{ + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + echo conftest.$ac_objext > conftest.lst + lt_ar_try='$AR $AR_FLAGS libconftest.a @conftest.lst >&5' + { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$lt_ar_try\""; } >&5 + (eval $lt_ar_try) 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; } + if test "$ac_status" -eq 0; then + # Ensure the archiver fails upon bogus file names. + rm -f conftest.$ac_objext libconftest.a + { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$lt_ar_try\""; } >&5 + (eval $lt_ar_try) 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; } + if test "$ac_status" -ne 0; then + lt_cv_ar_at_file=@ + fi + fi + rm -f conftest.* libconftest.a + +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext + +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_ar_at_file" >&5 +$as_echo "$lt_cv_ar_at_file" >&6; } + +if test "x$lt_cv_ar_at_file" = xno; then + archiver_list_spec= +else + archiver_list_spec=$lt_cv_ar_at_file +fi + + + + + + + +if test -n "$ac_tool_prefix"; then + # Extract the first word of "${ac_tool_prefix}strip", so it can be a program name with args. +set dummy ${ac_tool_prefix}strip; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_STRIP+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$STRIP"; then + ac_cv_prog_STRIP="$STRIP" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then + ac_cv_prog_STRIP="${ac_tool_prefix}strip" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +STRIP=$ac_cv_prog_STRIP +if test -n "$STRIP"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $STRIP" >&5 +$as_echo "$STRIP" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + +fi +if test -z "$ac_cv_prog_STRIP"; then + ac_ct_STRIP=$STRIP + # Extract the first word of "strip", so it can be a program name with args. +set dummy strip; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_ac_ct_STRIP+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$ac_ct_STRIP"; then + ac_cv_prog_ac_ct_STRIP="$ac_ct_STRIP" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then + ac_cv_prog_ac_ct_STRIP="strip" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +ac_ct_STRIP=$ac_cv_prog_ac_ct_STRIP +if test -n "$ac_ct_STRIP"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_STRIP" >&5 +$as_echo "$ac_ct_STRIP" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + if test "x$ac_ct_STRIP" = x; then + STRIP=":" + else + case $cross_compiling:$ac_tool_warned in +yes:) +{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 +$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} +ac_tool_warned=yes ;; +esac + STRIP=$ac_ct_STRIP + fi +else + STRIP="$ac_cv_prog_STRIP" +fi + +test -z "$STRIP" && STRIP=: + + + + + + +if test -n "$ac_tool_prefix"; then + # Extract the first word of "${ac_tool_prefix}ranlib", so it can be a program name with args. +set dummy ${ac_tool_prefix}ranlib; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_RANLIB+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$RANLIB"; then + ac_cv_prog_RANLIB="$RANLIB" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then + ac_cv_prog_RANLIB="${ac_tool_prefix}ranlib" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +RANLIB=$ac_cv_prog_RANLIB +if test -n "$RANLIB"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $RANLIB" >&5 +$as_echo "$RANLIB" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + +fi +if test -z "$ac_cv_prog_RANLIB"; then + ac_ct_RANLIB=$RANLIB + # Extract the first word of "ranlib", so it can be a program name with args. +set dummy ranlib; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_ac_ct_RANLIB+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$ac_ct_RANLIB"; then + ac_cv_prog_ac_ct_RANLIB="$ac_ct_RANLIB" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then + ac_cv_prog_ac_ct_RANLIB="ranlib" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +ac_ct_RANLIB=$ac_cv_prog_ac_ct_RANLIB +if test -n "$ac_ct_RANLIB"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_RANLIB" >&5 +$as_echo "$ac_ct_RANLIB" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + if test "x$ac_ct_RANLIB" = x; then + RANLIB=":" + else + case $cross_compiling:$ac_tool_warned in +yes:) +{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 +$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} +ac_tool_warned=yes ;; +esac + RANLIB=$ac_ct_RANLIB + fi +else + RANLIB="$ac_cv_prog_RANLIB" +fi + +test -z "$RANLIB" && RANLIB=: + + + + + + +# Determine commands to create old-style static archives. +old_archive_cmds='$AR $AR_FLAGS $oldlib$oldobjs' +old_postinstall_cmds='chmod 644 $oldlib' +old_postuninstall_cmds= + +if test -n "$RANLIB"; then + case $host_os in + openbsd*) + old_postinstall_cmds="$old_postinstall_cmds~\$RANLIB -t \$tool_oldlib" + ;; + *) + old_postinstall_cmds="$old_postinstall_cmds~\$RANLIB \$tool_oldlib" + ;; + esac + old_archive_cmds="$old_archive_cmds~\$RANLIB \$tool_oldlib" +fi + +case $host_os in + darwin*) + lock_old_archive_extraction=yes ;; + *) + lock_old_archive_extraction=no ;; +esac + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +# If no C compiler was specified, use CC. +LTCC=${LTCC-"$CC"} + +# If no C compiler flags were specified, use CFLAGS. +LTCFLAGS=${LTCFLAGS-"$CFLAGS"} + +# Allow CC to be a program name with arguments. +compiler=$CC + + +# Check for command to grab the raw symbol name followed by C symbol from nm. +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking command to parse $NM output from $compiler object" >&5 +$as_echo_n "checking command to parse $NM output from $compiler object... " >&6; } +if ${lt_cv_sys_global_symbol_pipe+:} false; then : + $as_echo_n "(cached) " >&6 +else + +# These are sane defaults that work on at least a few old systems. +# [They come from Ultrix. What could be older than Ultrix?!! ;)] + +# Character class describing NM global symbol codes. +symcode='[BCDEGRST]' + +# Regexp to match symbols that can be accessed directly from C. +sympat='\([_A-Za-z][_A-Za-z0-9]*\)' + +# Define system-specific variables. +case $host_os in +aix*) + symcode='[BCDT]' + ;; +cygwin* | mingw* | pw32* | cegcc*) + symcode='[ABCDGISTW]' + ;; +hpux*) + if test "$host_cpu" = ia64; then + symcode='[ABCDEGRST]' + fi + ;; +irix* | nonstopux*) + symcode='[BCDEGRST]' + ;; +osf*) + symcode='[BCDEGQRST]' + ;; +solaris*) + symcode='[BDRT]' + ;; +sco3.2v5*) + symcode='[DT]' + ;; +sysv4.2uw2*) + symcode='[DT]' + ;; +sysv5* | sco5v6* | unixware* | OpenUNIX*) + symcode='[ABDT]' + ;; +sysv4) + symcode='[DFNSTU]' + ;; +esac + +# If we're using GNU nm, then use its standard symbol codes. +case `$NM -V 2>&1` in +*GNU* | *'with BFD'*) + symcode='[ABCDGIRSTW]' ;; +esac + +# Transform an extracted symbol line into a proper C declaration. +# Some systems (esp. on ia64) link data and code symbols differently, +# so use this general approach. +lt_cv_sys_global_symbol_to_cdecl="sed -n -e 's/^T .* \(.*\)$/extern int \1();/p' -e 's/^$symcode* .* \(.*\)$/extern char \1;/p'" + +# Transform an extracted symbol line into symbol name and symbol address +lt_cv_sys_global_symbol_to_c_name_address="sed -n -e 's/^: \([^ ]*\)[ ]*$/ {\\\"\1\\\", (void *) 0},/p' -e 's/^$symcode* \([^ ]*\) \([^ ]*\)$/ {\"\2\", (void *) \&\2},/p'" +lt_cv_sys_global_symbol_to_c_name_address_lib_prefix="sed -n -e 's/^: \([^ ]*\)[ ]*$/ {\\\"\1\\\", (void *) 0},/p' -e 's/^$symcode* \([^ ]*\) \(lib[^ ]*\)$/ {\"\2\", (void *) \&\2},/p' -e 's/^$symcode* \([^ ]*\) \([^ ]*\)$/ {\"lib\2\", (void *) \&\2},/p'" + +# Handle CRLF in mingw tool chain +opt_cr= +case $build_os in +mingw*) + opt_cr=`$ECHO 'x\{0,1\}' | tr x '\015'` # option cr in regexp + ;; +esac + +# Try without a prefix underscore, then with it. +for ac_symprfx in "" "_"; do + + # Transform symcode, sympat, and symprfx into a raw symbol and a C symbol. + symxfrm="\\1 $ac_symprfx\\2 \\2" + + # Write the raw and C identifiers. + if test "$lt_cv_nm_interface" = "MS dumpbin"; then + # Fake it for dumpbin and say T for any non-static function + # and D for any global variable. + # Also find C++ and __fastcall symbols from MSVC++, + # which start with @ or ?. + lt_cv_sys_global_symbol_pipe="$AWK '"\ +" {last_section=section; section=\$ 3};"\ +" /^COFF SYMBOL TABLE/{for(i in hide) delete hide[i]};"\ +" /Section length .*#relocs.*(pick any)/{hide[last_section]=1};"\ +" \$ 0!~/External *\|/{next};"\ +" / 0+ UNDEF /{next}; / UNDEF \([^|]\)*()/{next};"\ +" {if(hide[section]) next};"\ +" {f=0}; \$ 0~/\(\).*\|/{f=1}; {printf f ? \"T \" : \"D \"};"\ +" {split(\$ 0, a, /\||\r/); split(a[2], s)};"\ +" s[1]~/^[@?]/{print s[1], s[1]; next};"\ +" s[1]~prfx {split(s[1],t,\"@\"); print t[1], substr(t[1],length(prfx))}"\ +" ' prfx=^$ac_symprfx" + else + lt_cv_sys_global_symbol_pipe="sed -n -e 's/^.*[ ]\($symcode$symcode*\)[ ][ ]*$ac_symprfx$sympat$opt_cr$/$symxfrm/p'" + fi + lt_cv_sys_global_symbol_pipe="$lt_cv_sys_global_symbol_pipe | sed '/ __gnu_lto/d'" + + # Check to see that the pipe works correctly. + pipe_works=no + + rm -f conftest* + cat > conftest.$ac_ext <<_LT_EOF +#ifdef __cplusplus +extern "C" { +#endif +char nm_test_var; +void nm_test_func(void); +void nm_test_func(void){} +#ifdef __cplusplus +} +#endif +int main(){nm_test_var='a';nm_test_func();return(0);} +_LT_EOF + + if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5 + (eval $ac_compile) 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; then + # Now try to grab the symbols. + nlist=conftest.nm + if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$NM conftest.$ac_objext \| "$lt_cv_sys_global_symbol_pipe" \> $nlist\""; } >&5 + (eval $NM conftest.$ac_objext \| "$lt_cv_sys_global_symbol_pipe" \> $nlist) 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; } && test -s "$nlist"; then + # Try sorting and uniquifying the output. + if sort "$nlist" | uniq > "$nlist"T; then + mv -f "$nlist"T "$nlist" + else + rm -f "$nlist"T + fi + + # Make sure that we snagged all the symbols we need. + if $GREP ' nm_test_var$' "$nlist" >/dev/null; then + if $GREP ' nm_test_func$' "$nlist" >/dev/null; then + cat <<_LT_EOF > conftest.$ac_ext +/* Keep this code in sync between libtool.m4, ltmain, lt_system.h, and tests. */ +#if defined(_WIN32) || defined(__CYGWIN__) || defined(_WIN32_WCE) +/* DATA imports from DLLs on WIN32 con't be const, because runtime + relocations are performed -- see ld's documentation on pseudo-relocs. */ +# define LT_DLSYM_CONST +#elif defined(__osf__) +/* This system does not cope well with relocations in const data. */ +# define LT_DLSYM_CONST +#else +# define LT_DLSYM_CONST const +#endif + +#ifdef __cplusplus +extern "C" { +#endif + +_LT_EOF + # Now generate the symbol file. + eval "$lt_cv_sys_global_symbol_to_cdecl"' < "$nlist" | $GREP -v main >> conftest.$ac_ext' + + cat <<_LT_EOF >> conftest.$ac_ext + +/* The mapping between symbol names and symbols. */ +LT_DLSYM_CONST struct { + const char *name; + void *address; +} +lt__PROGRAM__LTX_preloaded_symbols[] = +{ + { "@PROGRAM@", (void *) 0 }, +_LT_EOF + $SED "s/^$symcode$symcode* \(.*\) \(.*\)$/ {\"\2\", (void *) \&\2},/" < "$nlist" | $GREP -v main >> conftest.$ac_ext + cat <<\_LT_EOF >> conftest.$ac_ext + {0, (void *) 0} +}; + +/* This works around a problem in FreeBSD linker */ +#ifdef FREEBSD_WORKAROUND +static const void *lt_preloaded_setup() { + return lt__PROGRAM__LTX_preloaded_symbols; +} +#endif + +#ifdef __cplusplus +} +#endif +_LT_EOF + # Now try linking the two files. + mv conftest.$ac_objext conftstm.$ac_objext + lt_globsym_save_LIBS=$LIBS + lt_globsym_save_CFLAGS=$CFLAGS + LIBS="conftstm.$ac_objext" + CFLAGS="$CFLAGS$lt_prog_compiler_no_builtin_flag" + if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_link\""; } >&5 + (eval $ac_link) 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; } && test -s conftest${ac_exeext}; then + pipe_works=yes + fi + LIBS=$lt_globsym_save_LIBS + CFLAGS=$lt_globsym_save_CFLAGS + else + echo "cannot find nm_test_func in $nlist" >&5 + fi + else + echo "cannot find nm_test_var in $nlist" >&5 + fi + else + echo "cannot run $lt_cv_sys_global_symbol_pipe" >&5 + fi + else + echo "$progname: failed program was:" >&5 + cat conftest.$ac_ext >&5 + fi + rm -rf conftest* conftst* + + # Do not use the global_symbol_pipe unless it works. + if test "$pipe_works" = yes; then + break + else + lt_cv_sys_global_symbol_pipe= + fi +done + +fi + +if test -z "$lt_cv_sys_global_symbol_pipe"; then + lt_cv_sys_global_symbol_to_cdecl= +fi +if test -z "$lt_cv_sys_global_symbol_pipe$lt_cv_sys_global_symbol_to_cdecl"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: failed" >&5 +$as_echo "failed" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: ok" >&5 +$as_echo "ok" >&6; } +fi + +# Response file support. +if test "$lt_cv_nm_interface" = "MS dumpbin"; then + nm_file_list_spec='@' +elif $NM --help 2>/dev/null | grep '[@]FILE' >/dev/null; then + nm_file_list_spec='@' +fi + + + + + + + + + + + + + + + + + + + + + + + + + + + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for sysroot" >&5 +$as_echo_n "checking for sysroot... " >&6; } + +# Check whether --with-sysroot was given. +if test "${with_sysroot+set}" = set; then : + withval=$with_sysroot; +else + with_sysroot=no +fi + + +lt_sysroot= +case ${with_sysroot} in #( + yes) + if test "$GCC" = yes; then + lt_sysroot=`$CC --print-sysroot 2>/dev/null` + fi + ;; #( + /*) + lt_sysroot=`echo "$with_sysroot" | sed -e "$sed_quote_subst"` + ;; #( + no|'') + ;; #( + *) + { $as_echo "$as_me:${as_lineno-$LINENO}: result: ${with_sysroot}" >&5 +$as_echo "${with_sysroot}" >&6; } + as_fn_error $? "The sysroot must be an absolute path." "$LINENO" 5 + ;; +esac + + { $as_echo "$as_me:${as_lineno-$LINENO}: result: ${lt_sysroot:-no}" >&5 +$as_echo "${lt_sysroot:-no}" >&6; } + + + + + +# Check whether --enable-libtool-lock was given. +if test "${enable_libtool_lock+set}" = set; then : + enableval=$enable_libtool_lock; +fi + +test "x$enable_libtool_lock" != xno && enable_libtool_lock=yes + +# Some flags need to be propagated to the compiler or linker for good +# libtool support. +case $host in +ia64-*-hpux*) + # Find out which ABI we are using. + echo 'int i;' > conftest.$ac_ext + if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5 + (eval $ac_compile) 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; then + case `/usr/bin/file conftest.$ac_objext` in + *ELF-32*) + HPUX_IA64_MODE="32" + ;; + *ELF-64*) + HPUX_IA64_MODE="64" + ;; + esac + fi + rm -rf conftest* + ;; +*-*-irix6*) + # Find out which ABI we are using. + echo '#line '$LINENO' "configure"' > conftest.$ac_ext + if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5 + (eval $ac_compile) 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; then + if test "$lt_cv_prog_gnu_ld" = yes; then + case `/usr/bin/file conftest.$ac_objext` in + *32-bit*) + LD="${LD-ld} -melf32bsmip" + ;; + *N32*) + LD="${LD-ld} -melf32bmipn32" + ;; + *64-bit*) + LD="${LD-ld} -melf64bmip" + ;; + esac + else + case `/usr/bin/file conftest.$ac_objext` in + *32-bit*) + LD="${LD-ld} -32" + ;; + *N32*) + LD="${LD-ld} -n32" + ;; + *64-bit*) + LD="${LD-ld} -64" + ;; + esac + fi + fi + rm -rf conftest* + ;; + +x86_64-*kfreebsd*-gnu|x86_64-*linux*|ppc*-*linux*|powerpc*-*linux*| \ +s390*-*linux*|s390*-*tpf*|sparc*-*linux*) + # Find out which ABI we are using. + echo 'int i;' > conftest.$ac_ext + if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5 + (eval $ac_compile) 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; then + case `/usr/bin/file conftest.o` in + *32-bit*) + case $host in + x86_64-*kfreebsd*-gnu) + LD="${LD-ld} -m elf_i386_fbsd" + ;; + x86_64-*linux*) + LD="${LD-ld} -m elf_i386" + ;; + ppc64-*linux*|powerpc64-*linux*) + LD="${LD-ld} -m elf32ppclinux" + ;; + s390x-*linux*) + LD="${LD-ld} -m elf_s390" + ;; + sparc64-*linux*) + LD="${LD-ld} -m elf32_sparc" + ;; + esac + ;; + *64-bit*) + case $host in + x86_64-*kfreebsd*-gnu) + LD="${LD-ld} -m elf_x86_64_fbsd" + ;; + x86_64-*linux*) + LD="${LD-ld} -m elf_x86_64" + ;; + ppc*-*linux*|powerpc*-*linux*) + LD="${LD-ld} -m elf64ppc" + ;; + s390*-*linux*|s390*-*tpf*) + LD="${LD-ld} -m elf64_s390" + ;; + sparc*-*linux*) + LD="${LD-ld} -m elf64_sparc" + ;; + esac + ;; + esac + fi + rm -rf conftest* + ;; + +*-*-sco3.2v5*) + # On SCO OpenServer 5, we need -belf to get full-featured binaries. + SAVE_CFLAGS="$CFLAGS" + CFLAGS="$CFLAGS -belf" + { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the C compiler needs -belf" >&5 +$as_echo_n "checking whether the C compiler needs -belf... " >&6; } +if ${lt_cv_cc_needs_belf+:} false; then : + $as_echo_n "(cached) " >&6 +else + ac_ext=c +ac_cpp='$CPP $CPPFLAGS' +ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5' +ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' +ac_compiler_gnu=$ac_cv_c_compiler_gnu + + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +int +main () +{ + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_link "$LINENO"; then : + lt_cv_cc_needs_belf=yes +else + lt_cv_cc_needs_belf=no +fi +rm -f core conftest.err conftest.$ac_objext \ + conftest$ac_exeext conftest.$ac_ext + ac_ext=c +ac_cpp='$CPP $CPPFLAGS' +ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5' +ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' +ac_compiler_gnu=$ac_cv_c_compiler_gnu + +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_cc_needs_belf" >&5 +$as_echo "$lt_cv_cc_needs_belf" >&6; } + if test x"$lt_cv_cc_needs_belf" != x"yes"; then + # this is probably gcc 2.8.0, egcs 1.0 or newer; no need for -belf + CFLAGS="$SAVE_CFLAGS" + fi + ;; +*-*solaris*) + # Find out which ABI we are using. + echo 'int i;' > conftest.$ac_ext + if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5 + (eval $ac_compile) 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; then + case `/usr/bin/file conftest.o` in + *64-bit*) + case $lt_cv_prog_gnu_ld in + yes*) + case $host in + i?86-*-solaris*) + LD="${LD-ld} -m elf_x86_64" + ;; + sparc*-*-solaris*) + LD="${LD-ld} -m elf64_sparc" + ;; + esac + # GNU ld 2.21 introduced _sol2 emulations. Use them if available. + if ${LD-ld} -V | grep _sol2 >/dev/null 2>&1; then + LD="${LD-ld}_sol2" + fi + ;; + *) + if ${LD-ld} -64 -r -o conftest2.o conftest.o >/dev/null 2>&1; then + LD="${LD-ld} -64" + fi + ;; + esac + ;; + esac + fi + rm -rf conftest* + ;; +esac + +need_locks="$enable_libtool_lock" + +if test -n "$ac_tool_prefix"; then + # Extract the first word of "${ac_tool_prefix}mt", so it can be a program name with args. +set dummy ${ac_tool_prefix}mt; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_MANIFEST_TOOL+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$MANIFEST_TOOL"; then + ac_cv_prog_MANIFEST_TOOL="$MANIFEST_TOOL" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then + ac_cv_prog_MANIFEST_TOOL="${ac_tool_prefix}mt" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +MANIFEST_TOOL=$ac_cv_prog_MANIFEST_TOOL +if test -n "$MANIFEST_TOOL"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $MANIFEST_TOOL" >&5 +$as_echo "$MANIFEST_TOOL" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + +fi +if test -z "$ac_cv_prog_MANIFEST_TOOL"; then + ac_ct_MANIFEST_TOOL=$MANIFEST_TOOL + # Extract the first word of "mt", so it can be a program name with args. +set dummy mt; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_ac_ct_MANIFEST_TOOL+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$ac_ct_MANIFEST_TOOL"; then + ac_cv_prog_ac_ct_MANIFEST_TOOL="$ac_ct_MANIFEST_TOOL" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then + ac_cv_prog_ac_ct_MANIFEST_TOOL="mt" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +ac_ct_MANIFEST_TOOL=$ac_cv_prog_ac_ct_MANIFEST_TOOL +if test -n "$ac_ct_MANIFEST_TOOL"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_MANIFEST_TOOL" >&5 +$as_echo "$ac_ct_MANIFEST_TOOL" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + if test "x$ac_ct_MANIFEST_TOOL" = x; then + MANIFEST_TOOL=":" + else + case $cross_compiling:$ac_tool_warned in +yes:) +{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 +$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} +ac_tool_warned=yes ;; +esac + MANIFEST_TOOL=$ac_ct_MANIFEST_TOOL + fi +else + MANIFEST_TOOL="$ac_cv_prog_MANIFEST_TOOL" +fi + +test -z "$MANIFEST_TOOL" && MANIFEST_TOOL=mt +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $MANIFEST_TOOL is a manifest tool" >&5 +$as_echo_n "checking if $MANIFEST_TOOL is a manifest tool... " >&6; } +if ${lt_cv_path_mainfest_tool+:} false; then : + $as_echo_n "(cached) " >&6 +else + lt_cv_path_mainfest_tool=no + echo "$as_me:$LINENO: $MANIFEST_TOOL '-?'" >&5 + $MANIFEST_TOOL '-?' 2>conftest.err > conftest.out + cat conftest.err >&5 + if $GREP 'Manifest Tool' conftest.out > /dev/null; then + lt_cv_path_mainfest_tool=yes + fi + rm -f conftest* +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_path_mainfest_tool" >&5 +$as_echo "$lt_cv_path_mainfest_tool" >&6; } +if test "x$lt_cv_path_mainfest_tool" != xyes; then + MANIFEST_TOOL=: +fi + + + + + + + case $host_os in + rhapsody* | darwin*) + if test -n "$ac_tool_prefix"; then + # Extract the first word of "${ac_tool_prefix}dsymutil", so it can be a program name with args. +set dummy ${ac_tool_prefix}dsymutil; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_DSYMUTIL+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$DSYMUTIL"; then + ac_cv_prog_DSYMUTIL="$DSYMUTIL" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then + ac_cv_prog_DSYMUTIL="${ac_tool_prefix}dsymutil" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +DSYMUTIL=$ac_cv_prog_DSYMUTIL +if test -n "$DSYMUTIL"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $DSYMUTIL" >&5 +$as_echo "$DSYMUTIL" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + +fi +if test -z "$ac_cv_prog_DSYMUTIL"; then + ac_ct_DSYMUTIL=$DSYMUTIL + # Extract the first word of "dsymutil", so it can be a program name with args. +set dummy dsymutil; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_ac_ct_DSYMUTIL+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$ac_ct_DSYMUTIL"; then + ac_cv_prog_ac_ct_DSYMUTIL="$ac_ct_DSYMUTIL" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then + ac_cv_prog_ac_ct_DSYMUTIL="dsymutil" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +ac_ct_DSYMUTIL=$ac_cv_prog_ac_ct_DSYMUTIL +if test -n "$ac_ct_DSYMUTIL"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_DSYMUTIL" >&5 +$as_echo "$ac_ct_DSYMUTIL" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + if test "x$ac_ct_DSYMUTIL" = x; then + DSYMUTIL=":" + else + case $cross_compiling:$ac_tool_warned in +yes:) +{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 +$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} +ac_tool_warned=yes ;; +esac + DSYMUTIL=$ac_ct_DSYMUTIL + fi +else + DSYMUTIL="$ac_cv_prog_DSYMUTIL" +fi + + if test -n "$ac_tool_prefix"; then + # Extract the first word of "${ac_tool_prefix}nmedit", so it can be a program name with args. +set dummy ${ac_tool_prefix}nmedit; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_NMEDIT+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$NMEDIT"; then + ac_cv_prog_NMEDIT="$NMEDIT" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then + ac_cv_prog_NMEDIT="${ac_tool_prefix}nmedit" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +NMEDIT=$ac_cv_prog_NMEDIT +if test -n "$NMEDIT"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $NMEDIT" >&5 +$as_echo "$NMEDIT" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + +fi +if test -z "$ac_cv_prog_NMEDIT"; then + ac_ct_NMEDIT=$NMEDIT + # Extract the first word of "nmedit", so it can be a program name with args. +set dummy nmedit; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_ac_ct_NMEDIT+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$ac_ct_NMEDIT"; then + ac_cv_prog_ac_ct_NMEDIT="$ac_ct_NMEDIT" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then + ac_cv_prog_ac_ct_NMEDIT="nmedit" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +ac_ct_NMEDIT=$ac_cv_prog_ac_ct_NMEDIT +if test -n "$ac_ct_NMEDIT"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_NMEDIT" >&5 +$as_echo "$ac_ct_NMEDIT" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + if test "x$ac_ct_NMEDIT" = x; then + NMEDIT=":" + else + case $cross_compiling:$ac_tool_warned in +yes:) +{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 +$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} +ac_tool_warned=yes ;; +esac + NMEDIT=$ac_ct_NMEDIT + fi +else + NMEDIT="$ac_cv_prog_NMEDIT" +fi + + if test -n "$ac_tool_prefix"; then + # Extract the first word of "${ac_tool_prefix}lipo", so it can be a program name with args. +set dummy ${ac_tool_prefix}lipo; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_LIPO+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$LIPO"; then + ac_cv_prog_LIPO="$LIPO" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then + ac_cv_prog_LIPO="${ac_tool_prefix}lipo" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +LIPO=$ac_cv_prog_LIPO +if test -n "$LIPO"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $LIPO" >&5 +$as_echo "$LIPO" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + +fi +if test -z "$ac_cv_prog_LIPO"; then + ac_ct_LIPO=$LIPO + # Extract the first word of "lipo", so it can be a program name with args. +set dummy lipo; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_ac_ct_LIPO+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$ac_ct_LIPO"; then + ac_cv_prog_ac_ct_LIPO="$ac_ct_LIPO" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then + ac_cv_prog_ac_ct_LIPO="lipo" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +ac_ct_LIPO=$ac_cv_prog_ac_ct_LIPO +if test -n "$ac_ct_LIPO"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_LIPO" >&5 +$as_echo "$ac_ct_LIPO" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + if test "x$ac_ct_LIPO" = x; then + LIPO=":" + else + case $cross_compiling:$ac_tool_warned in +yes:) +{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 +$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} +ac_tool_warned=yes ;; +esac + LIPO=$ac_ct_LIPO + fi +else + LIPO="$ac_cv_prog_LIPO" +fi + + if test -n "$ac_tool_prefix"; then + # Extract the first word of "${ac_tool_prefix}otool", so it can be a program name with args. +set dummy ${ac_tool_prefix}otool; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_OTOOL+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$OTOOL"; then + ac_cv_prog_OTOOL="$OTOOL" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then + ac_cv_prog_OTOOL="${ac_tool_prefix}otool" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +OTOOL=$ac_cv_prog_OTOOL +if test -n "$OTOOL"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $OTOOL" >&5 +$as_echo "$OTOOL" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + +fi +if test -z "$ac_cv_prog_OTOOL"; then + ac_ct_OTOOL=$OTOOL + # Extract the first word of "otool", so it can be a program name with args. +set dummy otool; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_ac_ct_OTOOL+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$ac_ct_OTOOL"; then + ac_cv_prog_ac_ct_OTOOL="$ac_ct_OTOOL" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then + ac_cv_prog_ac_ct_OTOOL="otool" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +ac_ct_OTOOL=$ac_cv_prog_ac_ct_OTOOL +if test -n "$ac_ct_OTOOL"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_OTOOL" >&5 +$as_echo "$ac_ct_OTOOL" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + if test "x$ac_ct_OTOOL" = x; then + OTOOL=":" + else + case $cross_compiling:$ac_tool_warned in +yes:) +{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 +$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} +ac_tool_warned=yes ;; +esac + OTOOL=$ac_ct_OTOOL + fi +else + OTOOL="$ac_cv_prog_OTOOL" +fi + + if test -n "$ac_tool_prefix"; then + # Extract the first word of "${ac_tool_prefix}otool64", so it can be a program name with args. +set dummy ${ac_tool_prefix}otool64; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_OTOOL64+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$OTOOL64"; then + ac_cv_prog_OTOOL64="$OTOOL64" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then + ac_cv_prog_OTOOL64="${ac_tool_prefix}otool64" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +OTOOL64=$ac_cv_prog_OTOOL64 +if test -n "$OTOOL64"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $OTOOL64" >&5 +$as_echo "$OTOOL64" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + +fi +if test -z "$ac_cv_prog_OTOOL64"; then + ac_ct_OTOOL64=$OTOOL64 + # Extract the first word of "otool64", so it can be a program name with args. +set dummy otool64; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_ac_ct_OTOOL64+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$ac_ct_OTOOL64"; then + ac_cv_prog_ac_ct_OTOOL64="$ac_ct_OTOOL64" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then + ac_cv_prog_ac_ct_OTOOL64="otool64" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +ac_ct_OTOOL64=$ac_cv_prog_ac_ct_OTOOL64 +if test -n "$ac_ct_OTOOL64"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_OTOOL64" >&5 +$as_echo "$ac_ct_OTOOL64" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + if test "x$ac_ct_OTOOL64" = x; then + OTOOL64=":" + else + case $cross_compiling:$ac_tool_warned in +yes:) +{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 +$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} +ac_tool_warned=yes ;; +esac + OTOOL64=$ac_ct_OTOOL64 + fi +else + OTOOL64="$ac_cv_prog_OTOOL64" +fi + + + + + + + + + + + + + + + + + + + + + + + + + + + + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for -single_module linker flag" >&5 +$as_echo_n "checking for -single_module linker flag... " >&6; } +if ${lt_cv_apple_cc_single_mod+:} false; then : + $as_echo_n "(cached) " >&6 +else + lt_cv_apple_cc_single_mod=no + if test -z "${LT_MULTI_MODULE}"; then + # By default we will add the -single_module flag. You can override + # by either setting the environment variable LT_MULTI_MODULE + # non-empty at configure time, or by adding -multi_module to the + # link flags. + rm -rf libconftest.dylib* + echo "int foo(void){return 1;}" > conftest.c + echo "$LTCC $LTCFLAGS $LDFLAGS -o libconftest.dylib \ +-dynamiclib -Wl,-single_module conftest.c" >&5 + $LTCC $LTCFLAGS $LDFLAGS -o libconftest.dylib \ + -dynamiclib -Wl,-single_module conftest.c 2>conftest.err + _lt_result=$? + # If there is a non-empty error log, and "single_module" + # appears in it, assume the flag caused a linker warning + if test -s conftest.err && $GREP single_module conftest.err; then + cat conftest.err >&5 + # Otherwise, if the output was created with a 0 exit code from + # the compiler, it worked. + elif test -f libconftest.dylib && test $_lt_result -eq 0; then + lt_cv_apple_cc_single_mod=yes + else + cat conftest.err >&5 + fi + rm -rf libconftest.dylib* + rm -f conftest.* + fi +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_apple_cc_single_mod" >&5 +$as_echo "$lt_cv_apple_cc_single_mod" >&6; } + + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for -exported_symbols_list linker flag" >&5 +$as_echo_n "checking for -exported_symbols_list linker flag... " >&6; } +if ${lt_cv_ld_exported_symbols_list+:} false; then : + $as_echo_n "(cached) " >&6 +else + lt_cv_ld_exported_symbols_list=no + save_LDFLAGS=$LDFLAGS + echo "_main" > conftest.sym + LDFLAGS="$LDFLAGS -Wl,-exported_symbols_list,conftest.sym" + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +int +main () +{ + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_link "$LINENO"; then : + lt_cv_ld_exported_symbols_list=yes +else + lt_cv_ld_exported_symbols_list=no +fi +rm -f core conftest.err conftest.$ac_objext \ + conftest$ac_exeext conftest.$ac_ext + LDFLAGS="$save_LDFLAGS" + +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_ld_exported_symbols_list" >&5 +$as_echo "$lt_cv_ld_exported_symbols_list" >&6; } + + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for -force_load linker flag" >&5 +$as_echo_n "checking for -force_load linker flag... " >&6; } +if ${lt_cv_ld_force_load+:} false; then : + $as_echo_n "(cached) " >&6 +else + lt_cv_ld_force_load=no + cat > conftest.c << _LT_EOF +int forced_loaded() { return 2;} +_LT_EOF + echo "$LTCC $LTCFLAGS -c -o conftest.o conftest.c" >&5 + $LTCC $LTCFLAGS -c -o conftest.o conftest.c 2>&5 + echo "$AR cru libconftest.a conftest.o" >&5 + $AR cru libconftest.a conftest.o 2>&5 + echo "$RANLIB libconftest.a" >&5 + $RANLIB libconftest.a 2>&5 + cat > conftest.c << _LT_EOF +int main() { return 0;} +_LT_EOF + echo "$LTCC $LTCFLAGS $LDFLAGS -o conftest conftest.c -Wl,-force_load,./libconftest.a" >&5 + $LTCC $LTCFLAGS $LDFLAGS -o conftest conftest.c -Wl,-force_load,./libconftest.a 2>conftest.err + _lt_result=$? + if test -s conftest.err && $GREP force_load conftest.err; then + cat conftest.err >&5 + elif test -f conftest && test $_lt_result -eq 0 && $GREP forced_load conftest >/dev/null 2>&1 ; then + lt_cv_ld_force_load=yes + else + cat conftest.err >&5 + fi + rm -f conftest.err libconftest.a conftest conftest.c + rm -rf conftest.dSYM + +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_ld_force_load" >&5 +$as_echo "$lt_cv_ld_force_load" >&6; } + case $host_os in + rhapsody* | darwin1.[012]) + _lt_dar_allow_undefined='${wl}-undefined ${wl}suppress' ;; + darwin1.*) + _lt_dar_allow_undefined='${wl}-flat_namespace ${wl}-undefined ${wl}suppress' ;; + darwin*) # darwin 5.x on + # if running on 10.5 or later, the deployment target defaults + # to the OS version, if on x86, and 10.4, the deployment + # target defaults to 10.4. Don't you love it? + case ${MACOSX_DEPLOYMENT_TARGET-10.0},$host in + 10.0,*86*-darwin8*|10.0,*-darwin[91]*) + _lt_dar_allow_undefined='${wl}-undefined ${wl}dynamic_lookup' ;; + 10.[012]*) + _lt_dar_allow_undefined='${wl}-flat_namespace ${wl}-undefined ${wl}suppress' ;; + 10.*) + _lt_dar_allow_undefined='${wl}-undefined ${wl}dynamic_lookup' ;; + esac + ;; + esac + if test "$lt_cv_apple_cc_single_mod" = "yes"; then + _lt_dar_single_mod='$single_module' + fi + if test "$lt_cv_ld_exported_symbols_list" = "yes"; then + _lt_dar_export_syms=' ${wl}-exported_symbols_list,$output_objdir/${libname}-symbols.expsym' + else + _lt_dar_export_syms='~$NMEDIT -s $output_objdir/${libname}-symbols.expsym ${lib}' + fi + if test "$DSYMUTIL" != ":" && test "$lt_cv_ld_force_load" = "no"; then + _lt_dsymutil='~$DSYMUTIL $lib || :' + else + _lt_dsymutil= + fi + ;; + esac + +for ac_header in dlfcn.h +do : + ac_fn_c_check_header_compile "$LINENO" "dlfcn.h" "ac_cv_header_dlfcn_h" "$ac_includes_default +" +if test "x$ac_cv_header_dlfcn_h" = xyes; then : + cat >>confdefs.h <<_ACEOF +#define HAVE_DLFCN_H 1 +_ACEOF + +fi + +done + + + + + +# Set options + + + + enable_dlopen=no + + + + # Check whether --enable-shared was given. +if test "${enable_shared+set}" = set; then : + enableval=$enable_shared; p=${PACKAGE-default} + case $enableval in + yes) enable_shared=yes ;; + no) enable_shared=no ;; + *) + enable_shared=no + # Look at the argument we got. We use all the common list separators. + lt_save_ifs="$IFS"; IFS="${IFS}$PATH_SEPARATOR," + for pkg in $enableval; do + IFS="$lt_save_ifs" + if test "X$pkg" = "X$p"; then + enable_shared=yes + fi + done + IFS="$lt_save_ifs" + ;; + esac +else + enable_shared=yes +fi + + + + + + + + + + # Check whether --enable-static was given. +if test "${enable_static+set}" = set; then : + enableval=$enable_static; p=${PACKAGE-default} + case $enableval in + yes) enable_static=yes ;; + no) enable_static=no ;; + *) + enable_static=no + # Look at the argument we got. We use all the common list separators. + lt_save_ifs="$IFS"; IFS="${IFS}$PATH_SEPARATOR," + for pkg in $enableval; do + IFS="$lt_save_ifs" + if test "X$pkg" = "X$p"; then + enable_static=yes + fi + done + IFS="$lt_save_ifs" + ;; + esac +else + enable_static=yes +fi + + + + + + + + + + +# Check whether --with-pic was given. +if test "${with_pic+set}" = set; then : + withval=$with_pic; lt_p=${PACKAGE-default} + case $withval in + yes|no) pic_mode=$withval ;; + *) + pic_mode=default + # Look at the argument we got. We use all the common list separators. + lt_save_ifs="$IFS"; IFS="${IFS}$PATH_SEPARATOR," + for lt_pkg in $withval; do + IFS="$lt_save_ifs" + if test "X$lt_pkg" = "X$lt_p"; then + pic_mode=yes + fi + done + IFS="$lt_save_ifs" + ;; + esac +else + pic_mode=default +fi + + +test -z "$pic_mode" && pic_mode=default + + + + + + + + # Check whether --enable-fast-install was given. +if test "${enable_fast_install+set}" = set; then : + enableval=$enable_fast_install; p=${PACKAGE-default} + case $enableval in + yes) enable_fast_install=yes ;; + no) enable_fast_install=no ;; + *) + enable_fast_install=no + # Look at the argument we got. We use all the common list separators. + lt_save_ifs="$IFS"; IFS="${IFS}$PATH_SEPARATOR," + for pkg in $enableval; do + IFS="$lt_save_ifs" + if test "X$pkg" = "X$p"; then + enable_fast_install=yes + fi + done + IFS="$lt_save_ifs" + ;; + esac +else + enable_fast_install=yes +fi + + + + + + + + + + + +# This can be used to rebuild libtool when needed +LIBTOOL_DEPS="$ltmain" + +# Always use our own libtool. +LIBTOOL='$(SHELL) $(top_builddir)/libtool' + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +test -z "$LN_S" && LN_S="ln -s" + + + + + + + + + + + + + + +if test -n "${ZSH_VERSION+set}" ; then + setopt NO_GLOB_SUBST +fi + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for objdir" >&5 +$as_echo_n "checking for objdir... " >&6; } +if ${lt_cv_objdir+:} false; then : + $as_echo_n "(cached) " >&6 +else + rm -f .libs 2>/dev/null +mkdir .libs 2>/dev/null +if test -d .libs; then + lt_cv_objdir=.libs +else + # MS-DOS does not allow filenames that begin with a dot. + lt_cv_objdir=_libs +fi +rmdir .libs 2>/dev/null +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_objdir" >&5 +$as_echo "$lt_cv_objdir" >&6; } +objdir=$lt_cv_objdir + + + + + +cat >>confdefs.h <<_ACEOF +#define LT_OBJDIR "$lt_cv_objdir/" +_ACEOF + + + + +case $host_os in +aix3*) + # AIX sometimes has problems with the GCC collect2 program. For some + # reason, if we set the COLLECT_NAMES environment variable, the problems + # vanish in a puff of smoke. + if test "X${COLLECT_NAMES+set}" != Xset; then + COLLECT_NAMES= + export COLLECT_NAMES + fi + ;; +esac + +# Global variables: +ofile=libtool +can_build_shared=yes + +# All known linkers require a `.a' archive for static linking (except MSVC, +# which needs '.lib'). +libext=a + +with_gnu_ld="$lt_cv_prog_gnu_ld" + +old_CC="$CC" +old_CFLAGS="$CFLAGS" + +# Set sane defaults for various variables +test -z "$CC" && CC=cc +test -z "$LTCC" && LTCC=$CC +test -z "$LTCFLAGS" && LTCFLAGS=$CFLAGS +test -z "$LD" && LD=ld +test -z "$ac_objext" && ac_objext=o + +for cc_temp in $compiler""; do + case $cc_temp in + compile | *[\\/]compile | ccache | *[\\/]ccache ) ;; + distcc | *[\\/]distcc | purify | *[\\/]purify ) ;; + \-*) ;; + *) break;; + esac +done +cc_basename=`$ECHO "$cc_temp" | $SED "s%.*/%%; s%^$host_alias-%%"` + + +# Only perform the check for file, if the check method requires it +test -z "$MAGIC_CMD" && MAGIC_CMD=file +case $deplibs_check_method in +file_magic*) + if test "$file_magic_cmd" = '$MAGIC_CMD'; then + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ${ac_tool_prefix}file" >&5 +$as_echo_n "checking for ${ac_tool_prefix}file... " >&6; } +if ${lt_cv_path_MAGIC_CMD+:} false; then : + $as_echo_n "(cached) " >&6 +else + case $MAGIC_CMD in +[\\/*] | ?:[\\/]*) + lt_cv_path_MAGIC_CMD="$MAGIC_CMD" # Let the user override the test with a path. + ;; +*) + lt_save_MAGIC_CMD="$MAGIC_CMD" + lt_save_ifs="$IFS"; IFS=$PATH_SEPARATOR + ac_dummy="/usr/bin$PATH_SEPARATOR$PATH" + for ac_dir in $ac_dummy; do + IFS="$lt_save_ifs" + test -z "$ac_dir" && ac_dir=. + if test -f $ac_dir/${ac_tool_prefix}file; then + lt_cv_path_MAGIC_CMD="$ac_dir/${ac_tool_prefix}file" + if test -n "$file_magic_test_file"; then + case $deplibs_check_method in + "file_magic "*) + file_magic_regex=`expr "$deplibs_check_method" : "file_magic \(.*\)"` + MAGIC_CMD="$lt_cv_path_MAGIC_CMD" + if eval $file_magic_cmd \$file_magic_test_file 2> /dev/null | + $EGREP "$file_magic_regex" > /dev/null; then + : + else + cat <<_LT_EOF 1>&2 + +*** Warning: the command libtool uses to detect shared libraries, +*** $file_magic_cmd, produces output that libtool cannot recognize. +*** The result is that libtool may fail to recognize shared libraries +*** as such. This will affect the creation of libtool libraries that +*** depend on shared libraries, but programs linked with such libtool +*** libraries will work regardless of this problem. Nevertheless, you +*** may want to report the problem to your system manager and/or to +*** bug-libtool@gnu.org + +_LT_EOF + fi ;; + esac + fi + break + fi + done + IFS="$lt_save_ifs" + MAGIC_CMD="$lt_save_MAGIC_CMD" + ;; +esac +fi + +MAGIC_CMD="$lt_cv_path_MAGIC_CMD" +if test -n "$MAGIC_CMD"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $MAGIC_CMD" >&5 +$as_echo "$MAGIC_CMD" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + + + + +if test -z "$lt_cv_path_MAGIC_CMD"; then + if test -n "$ac_tool_prefix"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for file" >&5 +$as_echo_n "checking for file... " >&6; } +if ${lt_cv_path_MAGIC_CMD+:} false; then : + $as_echo_n "(cached) " >&6 +else + case $MAGIC_CMD in +[\\/*] | ?:[\\/]*) + lt_cv_path_MAGIC_CMD="$MAGIC_CMD" # Let the user override the test with a path. + ;; +*) + lt_save_MAGIC_CMD="$MAGIC_CMD" + lt_save_ifs="$IFS"; IFS=$PATH_SEPARATOR + ac_dummy="/usr/bin$PATH_SEPARATOR$PATH" + for ac_dir in $ac_dummy; do + IFS="$lt_save_ifs" + test -z "$ac_dir" && ac_dir=. + if test -f $ac_dir/file; then + lt_cv_path_MAGIC_CMD="$ac_dir/file" + if test -n "$file_magic_test_file"; then + case $deplibs_check_method in + "file_magic "*) + file_magic_regex=`expr "$deplibs_check_method" : "file_magic \(.*\)"` + MAGIC_CMD="$lt_cv_path_MAGIC_CMD" + if eval $file_magic_cmd \$file_magic_test_file 2> /dev/null | + $EGREP "$file_magic_regex" > /dev/null; then + : + else + cat <<_LT_EOF 1>&2 + +*** Warning: the command libtool uses to detect shared libraries, +*** $file_magic_cmd, produces output that libtool cannot recognize. +*** The result is that libtool may fail to recognize shared libraries +*** as such. This will affect the creation of libtool libraries that +*** depend on shared libraries, but programs linked with such libtool +*** libraries will work regardless of this problem. Nevertheless, you +*** may want to report the problem to your system manager and/or to +*** bug-libtool@gnu.org + +_LT_EOF + fi ;; + esac + fi + break + fi + done + IFS="$lt_save_ifs" + MAGIC_CMD="$lt_save_MAGIC_CMD" + ;; +esac +fi + +MAGIC_CMD="$lt_cv_path_MAGIC_CMD" +if test -n "$MAGIC_CMD"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $MAGIC_CMD" >&5 +$as_echo "$MAGIC_CMD" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + + else + MAGIC_CMD=: + fi +fi + + fi + ;; +esac + +# Use C for the default configuration in the libtool script + +lt_save_CC="$CC" +ac_ext=c +ac_cpp='$CPP $CPPFLAGS' +ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5' +ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' +ac_compiler_gnu=$ac_cv_c_compiler_gnu + + +# Source file extension for C test sources. +ac_ext=c + +# Object file extension for compiled C test sources. +objext=o +objext=$objext + +# Code to be used in simple compile tests +lt_simple_compile_test_code="int some_variable = 0;" + +# Code to be used in simple link tests +lt_simple_link_test_code='int main(){return(0);}' + + + + + + + +# If no C compiler was specified, use CC. +LTCC=${LTCC-"$CC"} + +# If no C compiler flags were specified, use CFLAGS. +LTCFLAGS=${LTCFLAGS-"$CFLAGS"} + +# Allow CC to be a program name with arguments. +compiler=$CC + +# Save the default compiler, since it gets overwritten when the other +# tags are being tested, and _LT_TAGVAR(compiler, []) is a NOP. +compiler_DEFAULT=$CC + +# save warnings/boilerplate of simple test code +ac_outfile=conftest.$ac_objext +echo "$lt_simple_compile_test_code" >conftest.$ac_ext +eval "$ac_compile" 2>&1 >/dev/null | $SED '/^$/d; /^ *+/d' >conftest.err +_lt_compiler_boilerplate=`cat conftest.err` +$RM conftest* + +ac_outfile=conftest.$ac_objext +echo "$lt_simple_link_test_code" >conftest.$ac_ext +eval "$ac_link" 2>&1 >/dev/null | $SED '/^$/d; /^ *+/d' >conftest.err +_lt_linker_boilerplate=`cat conftest.err` +$RM -r conftest* + + +if test -n "$compiler"; then + +lt_prog_compiler_no_builtin_flag= + +if test "$GCC" = yes; then + case $cc_basename in + nvcc*) + lt_prog_compiler_no_builtin_flag=' -Xcompiler -fno-builtin' ;; + *) + lt_prog_compiler_no_builtin_flag=' -fno-builtin' ;; + esac + + { $as_echo "$as_me:${as_lineno-$LINENO}: checking if $compiler supports -fno-rtti -fno-exceptions" >&5 +$as_echo_n "checking if $compiler supports -fno-rtti -fno-exceptions... " >&6; } +if ${lt_cv_prog_compiler_rtti_exceptions+:} false; then : + $as_echo_n "(cached) " >&6 +else + lt_cv_prog_compiler_rtti_exceptions=no + ac_outfile=conftest.$ac_objext + echo "$lt_simple_compile_test_code" > conftest.$ac_ext + lt_compiler_flag="-fno-rtti -fno-exceptions" + # Insert the option either (1) after the last *FLAGS variable, or + # (2) before a word containing "conftest.", or (3) at the end. + # Note that $ac_compile itself does not contain backslashes and begins + # with a dollar sign (not a hyphen), so the echo should work correctly. + # The option is referenced via a variable to avoid confusing sed. + lt_compile=`echo "$ac_compile" | $SED \ + -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \ + -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \ + -e 's:$: $lt_compiler_flag:'` + (eval echo "\"\$as_me:$LINENO: $lt_compile\"" >&5) + (eval "$lt_compile" 2>conftest.err) + ac_status=$? + cat conftest.err >&5 + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + if (exit $ac_status) && test -s "$ac_outfile"; then + # The compiler can only warn and ignore the option if not recognized + # So say no if there are warnings other than the usual output. + $ECHO "$_lt_compiler_boilerplate" | $SED '/^$/d' >conftest.exp + $SED '/^$/d; /^ *+/d' conftest.err >conftest.er2 + if test ! -s conftest.er2 || diff conftest.exp conftest.er2 >/dev/null; then + lt_cv_prog_compiler_rtti_exceptions=yes + fi + fi + $RM conftest* + +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_rtti_exceptions" >&5 +$as_echo "$lt_cv_prog_compiler_rtti_exceptions" >&6; } + +if test x"$lt_cv_prog_compiler_rtti_exceptions" = xyes; then + lt_prog_compiler_no_builtin_flag="$lt_prog_compiler_no_builtin_flag -fno-rtti -fno-exceptions" +else + : +fi + +fi + + + + + + + lt_prog_compiler_wl= +lt_prog_compiler_pic= +lt_prog_compiler_static= + + + if test "$GCC" = yes; then + lt_prog_compiler_wl='-Wl,' + lt_prog_compiler_static='-static' + + case $host_os in + aix*) + # All AIX code is PIC. + if test "$host_cpu" = ia64; then + # AIX 5 now supports IA64 processor + lt_prog_compiler_static='-Bstatic' + fi + ;; + + amigaos*) + case $host_cpu in + powerpc) + # see comment about AmigaOS4 .so support + lt_prog_compiler_pic='-fPIC' + ;; + m68k) + # FIXME: we need at least 68020 code to build shared libraries, but + # adding the `-m68020' flag to GCC prevents building anything better, + # like `-m68040'. + lt_prog_compiler_pic='-m68020 -resident32 -malways-restore-a4' + ;; + esac + ;; + + beos* | irix5* | irix6* | nonstopux* | osf3* | osf4* | osf5*) + # PIC is the default for these OSes. + ;; + + mingw* | cygwin* | pw32* | os2* | cegcc*) + # This hack is so that the source file can tell whether it is being + # built for inclusion in a dll (and should export symbols for example). + # Although the cygwin gcc ignores -fPIC, still need this for old-style + # (--disable-auto-import) libraries + lt_prog_compiler_pic='-DDLL_EXPORT' + ;; + + darwin* | rhapsody*) + # PIC is the default on this platform + # Common symbols not allowed in MH_DYLIB files + lt_prog_compiler_pic='-fno-common' + ;; + + haiku*) + # PIC is the default for Haiku. + # The "-static" flag exists, but is broken. + lt_prog_compiler_static= + ;; + + hpux*) + # PIC is the default for 64-bit PA HP-UX, but not for 32-bit + # PA HP-UX. On IA64 HP-UX, PIC is the default but the pic flag + # sets the default TLS model and affects inlining. + case $host_cpu in + hppa*64*) + # +Z the default + ;; + *) + lt_prog_compiler_pic='-fPIC' + ;; + esac + ;; + + interix[3-9]*) + # Interix 3.x gcc -fpic/-fPIC options generate broken code. + # Instead, we relocate shared libraries at runtime. + ;; + + msdosdjgpp*) + # Just because we use GCC doesn't mean we suddenly get shared libraries + # on systems that don't support them. + lt_prog_compiler_can_build_shared=no + enable_shared=no + ;; + + *nto* | *qnx*) + # QNX uses GNU C++, but need to define -shared option too, otherwise + # it will coredump. + lt_prog_compiler_pic='-fPIC -shared' + ;; + + sysv4*MP*) + if test -d /usr/nec; then + lt_prog_compiler_pic=-Kconform_pic + fi + ;; + + *) + lt_prog_compiler_pic='-fPIC' + ;; + esac + + case $cc_basename in + nvcc*) # Cuda Compiler Driver 2.2 + lt_prog_compiler_wl='-Xlinker ' + if test -n "$lt_prog_compiler_pic"; then + lt_prog_compiler_pic="-Xcompiler $lt_prog_compiler_pic" + fi + ;; + esac + else + # PORTME Check for flag to pass linker flags through the system compiler. + case $host_os in + aix*) + lt_prog_compiler_wl='-Wl,' + if test "$host_cpu" = ia64; then + # AIX 5 now supports IA64 processor + lt_prog_compiler_static='-Bstatic' + else + lt_prog_compiler_static='-bnso -bI:/lib/syscalls.exp' + fi + ;; + + mingw* | cygwin* | pw32* | os2* | cegcc*) + # This hack is so that the source file can tell whether it is being + # built for inclusion in a dll (and should export symbols for example). + lt_prog_compiler_pic='-DDLL_EXPORT' + ;; + + hpux9* | hpux10* | hpux11*) + lt_prog_compiler_wl='-Wl,' + # PIC is the default for IA64 HP-UX and 64-bit HP-UX, but + # not for PA HP-UX. + case $host_cpu in + hppa*64*|ia64*) + # +Z the default + ;; + *) + lt_prog_compiler_pic='+Z' + ;; + esac + # Is there a better lt_prog_compiler_static that works with the bundled CC? + lt_prog_compiler_static='${wl}-a ${wl}archive' + ;; + + irix5* | irix6* | nonstopux*) + lt_prog_compiler_wl='-Wl,' + # PIC (with -KPIC) is the default. + lt_prog_compiler_static='-non_shared' + ;; + + linux* | k*bsd*-gnu | kopensolaris*-gnu) + case $cc_basename in + # old Intel for x86_64 which still supported -KPIC. + ecc*) + lt_prog_compiler_wl='-Wl,' + lt_prog_compiler_pic='-KPIC' + lt_prog_compiler_static='-static' + ;; + # icc used to be incompatible with GCC. + # ICC 10 doesn't accept -KPIC any more. + icc* | ifort*) + lt_prog_compiler_wl='-Wl,' + lt_prog_compiler_pic='-fPIC' + lt_prog_compiler_static='-static' + ;; + # Lahey Fortran 8.1. + lf95*) + lt_prog_compiler_wl='-Wl,' + lt_prog_compiler_pic='--shared' + lt_prog_compiler_static='--static' + ;; + nagfor*) + # NAG Fortran compiler + lt_prog_compiler_wl='-Wl,-Wl,,' + lt_prog_compiler_pic='-PIC' + lt_prog_compiler_static='-Bstatic' + ;; + pgcc* | pgf77* | pgf90* | pgf95* | pgfortran*) + # Portland Group compilers (*not* the Pentium gcc compiler, + # which looks to be a dead project) + lt_prog_compiler_wl='-Wl,' + lt_prog_compiler_pic='-fpic' + lt_prog_compiler_static='-Bstatic' + ;; + ccc*) + lt_prog_compiler_wl='-Wl,' + # All Alpha code is PIC. + lt_prog_compiler_static='-non_shared' + ;; + xl* | bgxl* | bgf* | mpixl*) + # IBM XL C 8.0/Fortran 10.1, 11.1 on PPC and BlueGene + lt_prog_compiler_wl='-Wl,' + lt_prog_compiler_pic='-qpic' + lt_prog_compiler_static='-qstaticlink' + ;; + *) + case `$CC -V 2>&1 | sed 5q` in + *Sun\ Ceres\ Fortran* | *Sun*Fortran*\ [1-7].* | *Sun*Fortran*\ 8.[0-3]*) + # Sun Fortran 8.3 passes all unrecognized flags to the linker + lt_prog_compiler_pic='-KPIC' + lt_prog_compiler_static='-Bstatic' + lt_prog_compiler_wl='' + ;; + *Sun\ F* | *Sun*Fortran*) + lt_prog_compiler_pic='-KPIC' + lt_prog_compiler_static='-Bstatic' + lt_prog_compiler_wl='-Qoption ld ' + ;; + *Sun\ C*) + # Sun C 5.9 + lt_prog_compiler_pic='-KPIC' + lt_prog_compiler_static='-Bstatic' + lt_prog_compiler_wl='-Wl,' + ;; + *Intel*\ [CF]*Compiler*) + lt_prog_compiler_wl='-Wl,' + lt_prog_compiler_pic='-fPIC' + lt_prog_compiler_static='-static' + ;; + *Portland\ Group*) + lt_prog_compiler_wl='-Wl,' + lt_prog_compiler_pic='-fpic' + lt_prog_compiler_static='-Bstatic' + ;; + esac + ;; + esac + ;; + + newsos6) + lt_prog_compiler_pic='-KPIC' + lt_prog_compiler_static='-Bstatic' + ;; + + *nto* | *qnx*) + # QNX uses GNU C++, but need to define -shared option too, otherwise + # it will coredump. + lt_prog_compiler_pic='-fPIC -shared' + ;; + + osf3* | osf4* | osf5*) + lt_prog_compiler_wl='-Wl,' + # All OSF/1 code is PIC. + lt_prog_compiler_static='-non_shared' + ;; + + rdos*) + lt_prog_compiler_static='-non_shared' + ;; + + solaris*) + lt_prog_compiler_pic='-KPIC' + lt_prog_compiler_static='-Bstatic' + case $cc_basename in + f77* | f90* | f95* | sunf77* | sunf90* | sunf95*) + lt_prog_compiler_wl='-Qoption ld ';; + *) + lt_prog_compiler_wl='-Wl,';; + esac + ;; + + sunos4*) + lt_prog_compiler_wl='-Qoption ld ' + lt_prog_compiler_pic='-PIC' + lt_prog_compiler_static='-Bstatic' + ;; + + sysv4 | sysv4.2uw2* | sysv4.3*) + lt_prog_compiler_wl='-Wl,' + lt_prog_compiler_pic='-KPIC' + lt_prog_compiler_static='-Bstatic' + ;; + + sysv4*MP*) + if test -d /usr/nec ;then + lt_prog_compiler_pic='-Kconform_pic' + lt_prog_compiler_static='-Bstatic' + fi + ;; + + sysv5* | unixware* | sco3.2v5* | sco5v6* | OpenUNIX*) + lt_prog_compiler_wl='-Wl,' + lt_prog_compiler_pic='-KPIC' + lt_prog_compiler_static='-Bstatic' + ;; + + unicos*) + lt_prog_compiler_wl='-Wl,' + lt_prog_compiler_can_build_shared=no + ;; + + uts4*) + lt_prog_compiler_pic='-pic' + lt_prog_compiler_static='-Bstatic' + ;; + + *) + lt_prog_compiler_can_build_shared=no + ;; + esac + fi + +case $host_os in + # For platforms which do not support PIC, -DPIC is meaningless: + *djgpp*) + lt_prog_compiler_pic= + ;; + *) + lt_prog_compiler_pic="$lt_prog_compiler_pic -DPIC" + ;; +esac + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $compiler option to produce PIC" >&5 +$as_echo_n "checking for $compiler option to produce PIC... " >&6; } +if ${lt_cv_prog_compiler_pic+:} false; then : + $as_echo_n "(cached) " >&6 +else + lt_cv_prog_compiler_pic=$lt_prog_compiler_pic +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_pic" >&5 +$as_echo "$lt_cv_prog_compiler_pic" >&6; } +lt_prog_compiler_pic=$lt_cv_prog_compiler_pic + +# +# Check to make sure the PIC flag actually works. +# +if test -n "$lt_prog_compiler_pic"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: checking if $compiler PIC flag $lt_prog_compiler_pic works" >&5 +$as_echo_n "checking if $compiler PIC flag $lt_prog_compiler_pic works... " >&6; } +if ${lt_cv_prog_compiler_pic_works+:} false; then : + $as_echo_n "(cached) " >&6 +else + lt_cv_prog_compiler_pic_works=no + ac_outfile=conftest.$ac_objext + echo "$lt_simple_compile_test_code" > conftest.$ac_ext + lt_compiler_flag="$lt_prog_compiler_pic -DPIC" + # Insert the option either (1) after the last *FLAGS variable, or + # (2) before a word containing "conftest.", or (3) at the end. + # Note that $ac_compile itself does not contain backslashes and begins + # with a dollar sign (not a hyphen), so the echo should work correctly. + # The option is referenced via a variable to avoid confusing sed. + lt_compile=`echo "$ac_compile" | $SED \ + -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \ + -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \ + -e 's:$: $lt_compiler_flag:'` + (eval echo "\"\$as_me:$LINENO: $lt_compile\"" >&5) + (eval "$lt_compile" 2>conftest.err) + ac_status=$? + cat conftest.err >&5 + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + if (exit $ac_status) && test -s "$ac_outfile"; then + # The compiler can only warn and ignore the option if not recognized + # So say no if there are warnings other than the usual output. + $ECHO "$_lt_compiler_boilerplate" | $SED '/^$/d' >conftest.exp + $SED '/^$/d; /^ *+/d' conftest.err >conftest.er2 + if test ! -s conftest.er2 || diff conftest.exp conftest.er2 >/dev/null; then + lt_cv_prog_compiler_pic_works=yes + fi + fi + $RM conftest* + +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_pic_works" >&5 +$as_echo "$lt_cv_prog_compiler_pic_works" >&6; } + +if test x"$lt_cv_prog_compiler_pic_works" = xyes; then + case $lt_prog_compiler_pic in + "" | " "*) ;; + *) lt_prog_compiler_pic=" $lt_prog_compiler_pic" ;; + esac +else + lt_prog_compiler_pic= + lt_prog_compiler_can_build_shared=no +fi + +fi + + + + + + + + + + + +# +# Check to make sure the static flag actually works. +# +wl=$lt_prog_compiler_wl eval lt_tmp_static_flag=\"$lt_prog_compiler_static\" +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $compiler static flag $lt_tmp_static_flag works" >&5 +$as_echo_n "checking if $compiler static flag $lt_tmp_static_flag works... " >&6; } +if ${lt_cv_prog_compiler_static_works+:} false; then : + $as_echo_n "(cached) " >&6 +else + lt_cv_prog_compiler_static_works=no + save_LDFLAGS="$LDFLAGS" + LDFLAGS="$LDFLAGS $lt_tmp_static_flag" + echo "$lt_simple_link_test_code" > conftest.$ac_ext + if (eval $ac_link 2>conftest.err) && test -s conftest$ac_exeext; then + # The linker can only warn and ignore the option if not recognized + # So say no if there are warnings + if test -s conftest.err; then + # Append any errors to the config.log. + cat conftest.err 1>&5 + $ECHO "$_lt_linker_boilerplate" | $SED '/^$/d' > conftest.exp + $SED '/^$/d; /^ *+/d' conftest.err >conftest.er2 + if diff conftest.exp conftest.er2 >/dev/null; then + lt_cv_prog_compiler_static_works=yes + fi + else + lt_cv_prog_compiler_static_works=yes + fi + fi + $RM -r conftest* + LDFLAGS="$save_LDFLAGS" + +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_static_works" >&5 +$as_echo "$lt_cv_prog_compiler_static_works" >&6; } + +if test x"$lt_cv_prog_compiler_static_works" = xyes; then + : +else + lt_prog_compiler_static= +fi + + + + + + + + { $as_echo "$as_me:${as_lineno-$LINENO}: checking if $compiler supports -c -o file.$ac_objext" >&5 +$as_echo_n "checking if $compiler supports -c -o file.$ac_objext... " >&6; } +if ${lt_cv_prog_compiler_c_o+:} false; then : + $as_echo_n "(cached) " >&6 +else + lt_cv_prog_compiler_c_o=no + $RM -r conftest 2>/dev/null + mkdir conftest + cd conftest + mkdir out + echo "$lt_simple_compile_test_code" > conftest.$ac_ext + + lt_compiler_flag="-o out/conftest2.$ac_objext" + # Insert the option either (1) after the last *FLAGS variable, or + # (2) before a word containing "conftest.", or (3) at the end. + # Note that $ac_compile itself does not contain backslashes and begins + # with a dollar sign (not a hyphen), so the echo should work correctly. + lt_compile=`echo "$ac_compile" | $SED \ + -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \ + -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \ + -e 's:$: $lt_compiler_flag:'` + (eval echo "\"\$as_me:$LINENO: $lt_compile\"" >&5) + (eval "$lt_compile" 2>out/conftest.err) + ac_status=$? + cat out/conftest.err >&5 + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + if (exit $ac_status) && test -s out/conftest2.$ac_objext + then + # The compiler can only warn and ignore the option if not recognized + # So say no if there are warnings + $ECHO "$_lt_compiler_boilerplate" | $SED '/^$/d' > out/conftest.exp + $SED '/^$/d; /^ *+/d' out/conftest.err >out/conftest.er2 + if test ! -s out/conftest.er2 || diff out/conftest.exp out/conftest.er2 >/dev/null; then + lt_cv_prog_compiler_c_o=yes + fi + fi + chmod u+w . 2>&5 + $RM conftest* + # SGI C++ compiler will create directory out/ii_files/ for + # template instantiation + test -d out/ii_files && $RM out/ii_files/* && rmdir out/ii_files + $RM out/* && rmdir out + cd .. + $RM -r conftest + $RM conftest* + +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_c_o" >&5 +$as_echo "$lt_cv_prog_compiler_c_o" >&6; } + + + + + + + { $as_echo "$as_me:${as_lineno-$LINENO}: checking if $compiler supports -c -o file.$ac_objext" >&5 +$as_echo_n "checking if $compiler supports -c -o file.$ac_objext... " >&6; } +if ${lt_cv_prog_compiler_c_o+:} false; then : + $as_echo_n "(cached) " >&6 +else + lt_cv_prog_compiler_c_o=no + $RM -r conftest 2>/dev/null + mkdir conftest + cd conftest + mkdir out + echo "$lt_simple_compile_test_code" > conftest.$ac_ext + + lt_compiler_flag="-o out/conftest2.$ac_objext" + # Insert the option either (1) after the last *FLAGS variable, or + # (2) before a word containing "conftest.", or (3) at the end. + # Note that $ac_compile itself does not contain backslashes and begins + # with a dollar sign (not a hyphen), so the echo should work correctly. + lt_compile=`echo "$ac_compile" | $SED \ + -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \ + -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \ + -e 's:$: $lt_compiler_flag:'` + (eval echo "\"\$as_me:$LINENO: $lt_compile\"" >&5) + (eval "$lt_compile" 2>out/conftest.err) + ac_status=$? + cat out/conftest.err >&5 + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + if (exit $ac_status) && test -s out/conftest2.$ac_objext + then + # The compiler can only warn and ignore the option if not recognized + # So say no if there are warnings + $ECHO "$_lt_compiler_boilerplate" | $SED '/^$/d' > out/conftest.exp + $SED '/^$/d; /^ *+/d' out/conftest.err >out/conftest.er2 + if test ! -s out/conftest.er2 || diff out/conftest.exp out/conftest.er2 >/dev/null; then + lt_cv_prog_compiler_c_o=yes + fi + fi + chmod u+w . 2>&5 + $RM conftest* + # SGI C++ compiler will create directory out/ii_files/ for + # template instantiation + test -d out/ii_files && $RM out/ii_files/* && rmdir out/ii_files + $RM out/* && rmdir out + cd .. + $RM -r conftest + $RM conftest* + +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_c_o" >&5 +$as_echo "$lt_cv_prog_compiler_c_o" >&6; } + + + + +hard_links="nottested" +if test "$lt_cv_prog_compiler_c_o" = no && test "$need_locks" != no; then + # do not overwrite the value of need_locks provided by the user + { $as_echo "$as_me:${as_lineno-$LINENO}: checking if we can lock with hard links" >&5 +$as_echo_n "checking if we can lock with hard links... " >&6; } + hard_links=yes + $RM conftest* + ln conftest.a conftest.b 2>/dev/null && hard_links=no + touch conftest.a + ln conftest.a conftest.b 2>&5 || hard_links=no + ln conftest.a conftest.b 2>/dev/null && hard_links=no + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $hard_links" >&5 +$as_echo "$hard_links" >&6; } + if test "$hard_links" = no; then + { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: \`$CC' does not support \`-c -o', so \`make -j' may be unsafe" >&5 +$as_echo "$as_me: WARNING: \`$CC' does not support \`-c -o', so \`make -j' may be unsafe" >&2;} + need_locks=warn + fi +else + need_locks=no +fi + + + + + + + { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the $compiler linker ($LD) supports shared libraries" >&5 +$as_echo_n "checking whether the $compiler linker ($LD) supports shared libraries... " >&6; } + + runpath_var= + allow_undefined_flag= + always_export_symbols=no + archive_cmds= + archive_expsym_cmds= + compiler_needs_object=no + enable_shared_with_static_runtimes=no + export_dynamic_flag_spec= + export_symbols_cmds='$NM $libobjs $convenience | $global_symbol_pipe | $SED '\''s/.* //'\'' | sort | uniq > $export_symbols' + hardcode_automatic=no + hardcode_direct=no + hardcode_direct_absolute=no + hardcode_libdir_flag_spec= + hardcode_libdir_separator= + hardcode_minus_L=no + hardcode_shlibpath_var=unsupported + inherit_rpath=no + link_all_deplibs=unknown + module_cmds= + module_expsym_cmds= + old_archive_from_new_cmds= + old_archive_from_expsyms_cmds= + thread_safe_flag_spec= + whole_archive_flag_spec= + # include_expsyms should be a list of space-separated symbols to be *always* + # included in the symbol list + include_expsyms= + # exclude_expsyms can be an extended regexp of symbols to exclude + # it will be wrapped by ` (' and `)$', so one must not match beginning or + # end of line. Example: `a|bc|.*d.*' will exclude the symbols `a' and `bc', + # as well as any symbol that contains `d'. + exclude_expsyms='_GLOBAL_OFFSET_TABLE_|_GLOBAL__F[ID]_.*' + # Although _GLOBAL_OFFSET_TABLE_ is a valid symbol C name, most a.out + # platforms (ab)use it in PIC code, but their linkers get confused if + # the symbol is explicitly referenced. Since portable code cannot + # rely on this symbol name, it's probably fine to never include it in + # preloaded symbol tables. + # Exclude shared library initialization/finalization symbols. + extract_expsyms_cmds= + + case $host_os in + cygwin* | mingw* | pw32* | cegcc*) + # FIXME: the MSVC++ port hasn't been tested in a loooong time + # When not using gcc, we currently assume that we are using + # Microsoft Visual C++. + if test "$GCC" != yes; then + with_gnu_ld=no + fi + ;; + interix*) + # we just hope/assume this is gcc and not c89 (= MSVC++) + with_gnu_ld=yes + ;; + openbsd*) + with_gnu_ld=no + ;; + esac + + ld_shlibs=yes + + # On some targets, GNU ld is compatible enough with the native linker + # that we're better off using the native interface for both. + lt_use_gnu_ld_interface=no + if test "$with_gnu_ld" = yes; then + case $host_os in + aix*) + # The AIX port of GNU ld has always aspired to compatibility + # with the native linker. However, as the warning in the GNU ld + # block says, versions before 2.19.5* couldn't really create working + # shared libraries, regardless of the interface used. + case `$LD -v 2>&1` in + *\ \(GNU\ Binutils\)\ 2.19.5*) ;; + *\ \(GNU\ Binutils\)\ 2.[2-9]*) ;; + *\ \(GNU\ Binutils\)\ [3-9]*) ;; + *) + lt_use_gnu_ld_interface=yes + ;; + esac + ;; + *) + lt_use_gnu_ld_interface=yes + ;; + esac + fi + + if test "$lt_use_gnu_ld_interface" = yes; then + # If archive_cmds runs LD, not CC, wlarc should be empty + wlarc='${wl}' + + # Set some defaults for GNU ld with shared library support. These + # are reset later if shared libraries are not supported. Putting them + # here allows them to be overridden if necessary. + runpath_var=LD_RUN_PATH + hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir' + export_dynamic_flag_spec='${wl}--export-dynamic' + # ancient GNU ld didn't support --whole-archive et. al. + if $LD --help 2>&1 | $GREP 'no-whole-archive' > /dev/null; then + whole_archive_flag_spec="$wlarc"'--whole-archive$convenience '"$wlarc"'--no-whole-archive' + else + whole_archive_flag_spec= + fi + supports_anon_versioning=no + case `$LD -v 2>&1` in + *GNU\ gold*) supports_anon_versioning=yes ;; + *\ [01].* | *\ 2.[0-9].* | *\ 2.10.*) ;; # catch versions < 2.11 + *\ 2.11.93.0.2\ *) supports_anon_versioning=yes ;; # RH7.3 ... + *\ 2.11.92.0.12\ *) supports_anon_versioning=yes ;; # Mandrake 8.2 ... + *\ 2.11.*) ;; # other 2.11 versions + *) supports_anon_versioning=yes ;; + esac + + # See if GNU ld supports shared libraries. + case $host_os in + aix[3-9]*) + # On AIX/PPC, the GNU linker is very broken + if test "$host_cpu" != ia64; then + ld_shlibs=no + cat <<_LT_EOF 1>&2 + +*** Warning: the GNU linker, at least up to release 2.19, is reported +*** to be unable to reliably create shared libraries on AIX. +*** Therefore, libtool is disabling shared libraries support. If you +*** really care for shared libraries, you may want to install binutils +*** 2.20 or above, or modify your PATH so that a non-GNU linker is found. +*** You will then need to restart the configuration process. + +_LT_EOF + fi + ;; + + amigaos*) + case $host_cpu in + powerpc) + # see comment about AmigaOS4 .so support + archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib' + archive_expsym_cmds='' + ;; + m68k) + archive_cmds='$RM $output_objdir/a2ixlibrary.data~$ECHO "#define NAME $libname" > $output_objdir/a2ixlibrary.data~$ECHO "#define LIBRARY_ID 1" >> $output_objdir/a2ixlibrary.data~$ECHO "#define VERSION $major" >> $output_objdir/a2ixlibrary.data~$ECHO "#define REVISION $revision" >> $output_objdir/a2ixlibrary.data~$AR $AR_FLAGS $lib $libobjs~$RANLIB $lib~(cd $output_objdir && a2ixlibrary -32)' + hardcode_libdir_flag_spec='-L$libdir' + hardcode_minus_L=yes + ;; + esac + ;; + + beos*) + if $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then + allow_undefined_flag=unsupported + # Joseph Beckenbach says some releases of gcc + # support --undefined. This deserves some investigation. FIXME + archive_cmds='$CC -nostart $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib' + else + ld_shlibs=no + fi + ;; + + cygwin* | mingw* | pw32* | cegcc*) + # _LT_TAGVAR(hardcode_libdir_flag_spec, ) is actually meaningless, + # as there is no search path for DLLs. + hardcode_libdir_flag_spec='-L$libdir' + export_dynamic_flag_spec='${wl}--export-all-symbols' + allow_undefined_flag=unsupported + always_export_symbols=no + enable_shared_with_static_runtimes=yes + export_symbols_cmds='$NM $libobjs $convenience | $global_symbol_pipe | $SED -e '\''/^[BCDGRS][ ]/s/.*[ ]\([^ ]*\)/\1 DATA/;s/^.*[ ]__nm__\([^ ]*\)[ ][^ ]*/\1 DATA/;/^I[ ]/d;/^[AITW][ ]/s/.* //'\'' | sort | uniq > $export_symbols' + exclude_expsyms='[_]+GLOBAL_OFFSET_TABLE_|[_]+GLOBAL__[FID]_.*|[_]+head_[A-Za-z0-9_]+_dll|[A-Za-z0-9_]+_dll_iname' + + if $LD --help 2>&1 | $GREP 'auto-import' > /dev/null; then + archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags -o $output_objdir/$soname ${wl}--enable-auto-image-base -Xlinker --out-implib -Xlinker $lib' + # If the export-symbols file already is a .def file (1st line + # is EXPORTS), use it as is; otherwise, prepend... + archive_expsym_cmds='if test "x`$SED 1q $export_symbols`" = xEXPORTS; then + cp $export_symbols $output_objdir/$soname.def; + else + echo EXPORTS > $output_objdir/$soname.def; + cat $export_symbols >> $output_objdir/$soname.def; + fi~ + $CC -shared $output_objdir/$soname.def $libobjs $deplibs $compiler_flags -o $output_objdir/$soname ${wl}--enable-auto-image-base -Xlinker --out-implib -Xlinker $lib' + else + ld_shlibs=no + fi + ;; + + haiku*) + archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib' + link_all_deplibs=yes + ;; + + interix[3-9]*) + hardcode_direct=no + hardcode_shlibpath_var=no + hardcode_libdir_flag_spec='${wl}-rpath,$libdir' + export_dynamic_flag_spec='${wl}-E' + # Hack: On Interix 3.x, we cannot compile PIC because of a broken gcc. + # Instead, shared libraries are loaded at an image base (0x10000000 by + # default) and relocated if they conflict, which is a slow very memory + # consuming and fragmenting process. To avoid this, we pick a random, + # 256 KiB-aligned image base between 0x50000000 and 0x6FFC0000 at link + # time. Moving up from 0x10000000 also allows more sbrk(2) space. + archive_cmds='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-h,$soname ${wl}--image-base,`expr ${RANDOM-$$} % 4096 / 2 \* 262144 + 1342177280` -o $lib' + archive_expsym_cmds='sed "s,^,_," $export_symbols >$output_objdir/$soname.expsym~$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-h,$soname ${wl}--retain-symbols-file,$output_objdir/$soname.expsym ${wl}--image-base,`expr ${RANDOM-$$} % 4096 / 2 \* 262144 + 1342177280` -o $lib' + ;; + + gnu* | linux* | tpf* | k*bsd*-gnu | kopensolaris*-gnu) + tmp_diet=no + if test "$host_os" = linux-dietlibc; then + case $cc_basename in + diet\ *) tmp_diet=yes;; # linux-dietlibc with static linking (!diet-dyn) + esac + fi + if $LD --help 2>&1 | $EGREP ': supported targets:.* elf' > /dev/null \ + && test "$tmp_diet" = no + then + tmp_addflag=' $pic_flag' + tmp_sharedflag='-shared' + case $cc_basename,$host_cpu in + pgcc*) # Portland Group C compiler + whole_archive_flag_spec='${wl}--whole-archive`for conv in $convenience\"\"; do test -n \"$conv\" && new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` ${wl}--no-whole-archive' + tmp_addflag=' $pic_flag' + ;; + pgf77* | pgf90* | pgf95* | pgfortran*) + # Portland Group f77 and f90 compilers + whole_archive_flag_spec='${wl}--whole-archive`for conv in $convenience\"\"; do test -n \"$conv\" && new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` ${wl}--no-whole-archive' + tmp_addflag=' $pic_flag -Mnomain' ;; + ecc*,ia64* | icc*,ia64*) # Intel C compiler on ia64 + tmp_addflag=' -i_dynamic' ;; + efc*,ia64* | ifort*,ia64*) # Intel Fortran compiler on ia64 + tmp_addflag=' -i_dynamic -nofor_main' ;; + ifc* | ifort*) # Intel Fortran compiler + tmp_addflag=' -nofor_main' ;; + lf95*) # Lahey Fortran 8.1 + whole_archive_flag_spec= + tmp_sharedflag='--shared' ;; + xl[cC]* | bgxl[cC]* | mpixl[cC]*) # IBM XL C 8.0 on PPC (deal with xlf below) + tmp_sharedflag='-qmkshrobj' + tmp_addflag= ;; + nvcc*) # Cuda Compiler Driver 2.2 + whole_archive_flag_spec='${wl}--whole-archive`for conv in $convenience\"\"; do test -n \"$conv\" && new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` ${wl}--no-whole-archive' + compiler_needs_object=yes + ;; + esac + case `$CC -V 2>&1 | sed 5q` in + *Sun\ C*) # Sun C 5.9 + whole_archive_flag_spec='${wl}--whole-archive`new_convenience=; for conv in $convenience\"\"; do test -z \"$conv\" || new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` ${wl}--no-whole-archive' + compiler_needs_object=yes + tmp_sharedflag='-G' ;; + *Sun\ F*) # Sun Fortran 8.3 + tmp_sharedflag='-G' ;; + esac + archive_cmds='$CC '"$tmp_sharedflag""$tmp_addflag"' $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib' + + if test "x$supports_anon_versioning" = xyes; then + archive_expsym_cmds='echo "{ global:" > $output_objdir/$libname.ver~ + cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $output_objdir/$libname.ver~ + echo "local: *; };" >> $output_objdir/$libname.ver~ + $CC '"$tmp_sharedflag""$tmp_addflag"' $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-version-script ${wl}$output_objdir/$libname.ver -o $lib' + fi + + case $cc_basename in + xlf* | bgf* | bgxlf* | mpixlf*) + # IBM XL Fortran 10.1 on PPC cannot create shared libs itself + whole_archive_flag_spec='--whole-archive$convenience --no-whole-archive' + hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir' + archive_cmds='$LD -shared $libobjs $deplibs $linker_flags -soname $soname -o $lib' + if test "x$supports_anon_versioning" = xyes; then + archive_expsym_cmds='echo "{ global:" > $output_objdir/$libname.ver~ + cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $output_objdir/$libname.ver~ + echo "local: *; };" >> $output_objdir/$libname.ver~ + $LD -shared $libobjs $deplibs $linker_flags -soname $soname -version-script $output_objdir/$libname.ver -o $lib' + fi + ;; + esac + else + ld_shlibs=no + fi + ;; + + netbsd*) + if echo __ELF__ | $CC -E - | $GREP __ELF__ >/dev/null; then + archive_cmds='$LD -Bshareable $libobjs $deplibs $linker_flags -o $lib' + wlarc= + else + archive_cmds='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib' + archive_expsym_cmds='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib' + fi + ;; + + solaris*) + if $LD -v 2>&1 | $GREP 'BFD 2\.8' > /dev/null; then + ld_shlibs=no + cat <<_LT_EOF 1>&2 + +*** Warning: The releases 2.8.* of the GNU linker cannot reliably +*** create shared libraries on Solaris systems. Therefore, libtool +*** is disabling shared libraries support. We urge you to upgrade GNU +*** binutils to release 2.9.1 or newer. Another option is to modify +*** your PATH or compiler configuration so that the native linker is +*** used, and then restart. + +_LT_EOF + elif $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then + archive_cmds='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib' + archive_expsym_cmds='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib' + else + ld_shlibs=no + fi + ;; + + sysv5* | sco3.2v5* | sco5v6* | unixware* | OpenUNIX*) + case `$LD -v 2>&1` in + *\ [01].* | *\ 2.[0-9].* | *\ 2.1[0-5].*) + ld_shlibs=no + cat <<_LT_EOF 1>&2 + +*** Warning: Releases of the GNU linker prior to 2.16.91.0.3 can not +*** reliably create shared libraries on SCO systems. Therefore, libtool +*** is disabling shared libraries support. We urge you to upgrade GNU +*** binutils to release 2.16.91.0.3 or newer. Another option is to modify +*** your PATH or compiler configuration so that the native linker is +*** used, and then restart. + +_LT_EOF + ;; + *) + # For security reasons, it is highly recommended that you always + # use absolute paths for naming shared libraries, and exclude the + # DT_RUNPATH tag from executables and libraries. But doing so + # requires that you compile everything twice, which is a pain. + if $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then + hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir' + archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib' + archive_expsym_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib' + else + ld_shlibs=no + fi + ;; + esac + ;; + + sunos4*) + archive_cmds='$LD -assert pure-text -Bshareable -o $lib $libobjs $deplibs $linker_flags' + wlarc= + hardcode_direct=yes + hardcode_shlibpath_var=no + ;; + + *) + if $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then + archive_cmds='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib' + archive_expsym_cmds='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib' + else + ld_shlibs=no + fi + ;; + esac + + if test "$ld_shlibs" = no; then + runpath_var= + hardcode_libdir_flag_spec= + export_dynamic_flag_spec= + whole_archive_flag_spec= + fi + else + # PORTME fill in a description of your system's linker (not GNU ld) + case $host_os in + aix3*) + allow_undefined_flag=unsupported + always_export_symbols=yes + archive_expsym_cmds='$LD -o $output_objdir/$soname $libobjs $deplibs $linker_flags -bE:$export_symbols -T512 -H512 -bM:SRE~$AR $AR_FLAGS $lib $output_objdir/$soname' + # Note: this linker hardcodes the directories in LIBPATH if there + # are no directories specified by -L. + hardcode_minus_L=yes + if test "$GCC" = yes && test -z "$lt_prog_compiler_static"; then + # Neither direct hardcoding nor static linking is supported with a + # broken collect2. + hardcode_direct=unsupported + fi + ;; + + aix[4-9]*) + if test "$host_cpu" = ia64; then + # On IA64, the linker does run time linking by default, so we don't + # have to do anything special. + aix_use_runtimelinking=no + exp_sym_flag='-Bexport' + no_entry_flag="" + else + # If we're using GNU nm, then we don't want the "-C" option. + # -C means demangle to AIX nm, but means don't demangle with GNU nm + # Also, AIX nm treats weak defined symbols like other global + # defined symbols, whereas GNU nm marks them as "W". + if $NM -V 2>&1 | $GREP 'GNU' > /dev/null; then + export_symbols_cmds='$NM -Bpg $libobjs $convenience | awk '\''{ if (((\$ 2 == "T") || (\$ 2 == "D") || (\$ 2 == "B") || (\$ 2 == "W")) && (substr(\$ 3,1,1) != ".")) { print \$ 3 } }'\'' | sort -u > $export_symbols' + else + export_symbols_cmds='$NM -BCpg $libobjs $convenience | awk '\''{ if (((\$ 2 == "T") || (\$ 2 == "D") || (\$ 2 == "B")) && (substr(\$ 3,1,1) != ".")) { print \$ 3 } }'\'' | sort -u > $export_symbols' + fi + aix_use_runtimelinking=no + + # Test if we are trying to use run time linking or normal + # AIX style linking. If -brtl is somewhere in LDFLAGS, we + # need to do runtime linking. + case $host_os in aix4.[23]|aix4.[23].*|aix[5-9]*) + for ld_flag in $LDFLAGS; do + if (test $ld_flag = "-brtl" || test $ld_flag = "-Wl,-brtl"); then + aix_use_runtimelinking=yes + break + fi + done + ;; + esac + + exp_sym_flag='-bexport' + no_entry_flag='-bnoentry' + fi + + # When large executables or shared objects are built, AIX ld can + # have problems creating the table of contents. If linking a library + # or program results in "error TOC overflow" add -mminimal-toc to + # CXXFLAGS/CFLAGS for g++/gcc. In the cases where that is not + # enough to fix the problem, add -Wl,-bbigtoc to LDFLAGS. + + archive_cmds='' + hardcode_direct=yes + hardcode_direct_absolute=yes + hardcode_libdir_separator=':' + link_all_deplibs=yes + file_list_spec='${wl}-f,' + + if test "$GCC" = yes; then + case $host_os in aix4.[012]|aix4.[012].*) + # We only want to do this on AIX 4.2 and lower, the check + # below for broken collect2 doesn't work under 4.3+ + collect2name=`${CC} -print-prog-name=collect2` + if test -f "$collect2name" && + strings "$collect2name" | $GREP resolve_lib_name >/dev/null + then + # We have reworked collect2 + : + else + # We have old collect2 + hardcode_direct=unsupported + # It fails to find uninstalled libraries when the uninstalled + # path is not listed in the libpath. Setting hardcode_minus_L + # to unsupported forces relinking + hardcode_minus_L=yes + hardcode_libdir_flag_spec='-L$libdir' + hardcode_libdir_separator= + fi + ;; + esac + shared_flag='-shared' + if test "$aix_use_runtimelinking" = yes; then + shared_flag="$shared_flag "'${wl}-G' + fi + else + # not using gcc + if test "$host_cpu" = ia64; then + # VisualAge C++, Version 5.5 for AIX 5L for IA-64, Beta 3 Release + # chokes on -Wl,-G. The following line is correct: + shared_flag='-G' + else + if test "$aix_use_runtimelinking" = yes; then + shared_flag='${wl}-G' + else + shared_flag='${wl}-bM:SRE' + fi + fi + fi + + export_dynamic_flag_spec='${wl}-bexpall' + # It seems that -bexpall does not export symbols beginning with + # underscore (_), so it is better to generate a list of symbols to export. + always_export_symbols=yes + if test "$aix_use_runtimelinking" = yes; then + # Warning - without using the other runtime loading flags (-brtl), + # -berok will link without error, but may produce a broken library. + allow_undefined_flag='-berok' + # Determine the default libpath from the value encoded in an + # empty executable. + if test "${lt_cv_aix_libpath+set}" = set; then + aix_libpath=$lt_cv_aix_libpath +else + if ${lt_cv_aix_libpath_+:} false; then : + $as_echo_n "(cached) " >&6 +else + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +int +main () +{ + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_link "$LINENO"; then : + + lt_aix_libpath_sed=' + /Import File Strings/,/^$/ { + /^0/ { + s/^0 *\([^ ]*\) *$/\1/ + p + } + }' + lt_cv_aix_libpath_=`dump -H conftest$ac_exeext 2>/dev/null | $SED -n -e "$lt_aix_libpath_sed"` + # Check for a 64-bit object if we didn't find anything. + if test -z "$lt_cv_aix_libpath_"; then + lt_cv_aix_libpath_=`dump -HX64 conftest$ac_exeext 2>/dev/null | $SED -n -e "$lt_aix_libpath_sed"` + fi +fi +rm -f core conftest.err conftest.$ac_objext \ + conftest$ac_exeext conftest.$ac_ext + if test -z "$lt_cv_aix_libpath_"; then + lt_cv_aix_libpath_="/usr/lib:/lib" + fi + +fi + + aix_libpath=$lt_cv_aix_libpath_ +fi + + hardcode_libdir_flag_spec='${wl}-blibpath:$libdir:'"$aix_libpath" + archive_expsym_cmds='$CC -o $output_objdir/$soname $libobjs $deplibs '"\${wl}$no_entry_flag"' $compiler_flags `if test "x${allow_undefined_flag}" != "x"; then func_echo_all "${wl}${allow_undefined_flag}"; else :; fi` '"\${wl}$exp_sym_flag:\$export_symbols $shared_flag" + else + if test "$host_cpu" = ia64; then + hardcode_libdir_flag_spec='${wl}-R $libdir:/usr/lib:/lib' + allow_undefined_flag="-z nodefs" + archive_expsym_cmds="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs '"\${wl}$no_entry_flag"' $compiler_flags ${wl}${allow_undefined_flag} '"\${wl}$exp_sym_flag:\$export_symbols" + else + # Determine the default libpath from the value encoded in an + # empty executable. + if test "${lt_cv_aix_libpath+set}" = set; then + aix_libpath=$lt_cv_aix_libpath +else + if ${lt_cv_aix_libpath_+:} false; then : + $as_echo_n "(cached) " >&6 +else + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +int +main () +{ + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_link "$LINENO"; then : + + lt_aix_libpath_sed=' + /Import File Strings/,/^$/ { + /^0/ { + s/^0 *\([^ ]*\) *$/\1/ + p + } + }' + lt_cv_aix_libpath_=`dump -H conftest$ac_exeext 2>/dev/null | $SED -n -e "$lt_aix_libpath_sed"` + # Check for a 64-bit object if we didn't find anything. + if test -z "$lt_cv_aix_libpath_"; then + lt_cv_aix_libpath_=`dump -HX64 conftest$ac_exeext 2>/dev/null | $SED -n -e "$lt_aix_libpath_sed"` + fi +fi +rm -f core conftest.err conftest.$ac_objext \ + conftest$ac_exeext conftest.$ac_ext + if test -z "$lt_cv_aix_libpath_"; then + lt_cv_aix_libpath_="/usr/lib:/lib" + fi + +fi + + aix_libpath=$lt_cv_aix_libpath_ +fi + + hardcode_libdir_flag_spec='${wl}-blibpath:$libdir:'"$aix_libpath" + # Warning - without using the other run time loading flags, + # -berok will link without error, but may produce a broken library. + no_undefined_flag=' ${wl}-bernotok' + allow_undefined_flag=' ${wl}-berok' + if test "$with_gnu_ld" = yes; then + # We only use this code for GNU lds that support --whole-archive. + whole_archive_flag_spec='${wl}--whole-archive$convenience ${wl}--no-whole-archive' + else + # Exported symbols can be pulled into shared objects from archives + whole_archive_flag_spec='$convenience' + fi + archive_cmds_need_lc=yes + # This is similar to how AIX traditionally builds its shared libraries. + archive_expsym_cmds="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs ${wl}-bnoentry $compiler_flags ${wl}-bE:$export_symbols${allow_undefined_flag}~$AR $AR_FLAGS $output_objdir/$libname$release.a $output_objdir/$soname' + fi + fi + ;; + + amigaos*) + case $host_cpu in + powerpc) + # see comment about AmigaOS4 .so support + archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib' + archive_expsym_cmds='' + ;; + m68k) + archive_cmds='$RM $output_objdir/a2ixlibrary.data~$ECHO "#define NAME $libname" > $output_objdir/a2ixlibrary.data~$ECHO "#define LIBRARY_ID 1" >> $output_objdir/a2ixlibrary.data~$ECHO "#define VERSION $major" >> $output_objdir/a2ixlibrary.data~$ECHO "#define REVISION $revision" >> $output_objdir/a2ixlibrary.data~$AR $AR_FLAGS $lib $libobjs~$RANLIB $lib~(cd $output_objdir && a2ixlibrary -32)' + hardcode_libdir_flag_spec='-L$libdir' + hardcode_minus_L=yes + ;; + esac + ;; + + bsdi[45]*) + export_dynamic_flag_spec=-rdynamic + ;; + + cygwin* | mingw* | pw32* | cegcc*) + # When not using gcc, we currently assume that we are using + # Microsoft Visual C++. + # hardcode_libdir_flag_spec is actually meaningless, as there is + # no search path for DLLs. + case $cc_basename in + cl*) + # Native MSVC + hardcode_libdir_flag_spec=' ' + allow_undefined_flag=unsupported + always_export_symbols=yes + file_list_spec='@' + # Tell ltmain to make .lib files, not .a files. + libext=lib + # Tell ltmain to make .dll files, not .so files. + shrext_cmds=".dll" + # FIXME: Setting linknames here is a bad hack. + archive_cmds='$CC -o $output_objdir/$soname $libobjs $compiler_flags $deplibs -Wl,-dll~linknames=' + archive_expsym_cmds='if test "x`$SED 1q $export_symbols`" = xEXPORTS; then + sed -n -e 's/\\\\\\\(.*\\\\\\\)/-link\\\ -EXPORT:\\\\\\\1/' -e '1\\\!p' < $export_symbols > $output_objdir/$soname.exp; + else + sed -e 's/\\\\\\\(.*\\\\\\\)/-link\\\ -EXPORT:\\\\\\\1/' < $export_symbols > $output_objdir/$soname.exp; + fi~ + $CC -o $tool_output_objdir$soname $libobjs $compiler_flags $deplibs "@$tool_output_objdir$soname.exp" -Wl,-DLL,-IMPLIB:"$tool_output_objdir$libname.dll.lib"~ + linknames=' + # The linker will not automatically build a static lib if we build a DLL. + # _LT_TAGVAR(old_archive_from_new_cmds, )='true' + enable_shared_with_static_runtimes=yes + exclude_expsyms='_NULL_IMPORT_DESCRIPTOR|_IMPORT_DESCRIPTOR_.*' + export_symbols_cmds='$NM $libobjs $convenience | $global_symbol_pipe | $SED -e '\''/^[BCDGRS][ ]/s/.*[ ]\([^ ]*\)/\1,DATA/'\'' | $SED -e '\''/^[AITW][ ]/s/.*[ ]//'\'' | sort | uniq > $export_symbols' + # Don't use ranlib + old_postinstall_cmds='chmod 644 $oldlib' + postlink_cmds='lt_outputfile="@OUTPUT@"~ + lt_tool_outputfile="@TOOL_OUTPUT@"~ + case $lt_outputfile in + *.exe|*.EXE) ;; + *) + lt_outputfile="$lt_outputfile.exe" + lt_tool_outputfile="$lt_tool_outputfile.exe" + ;; + esac~ + if test "$MANIFEST_TOOL" != ":" && test -f "$lt_outputfile.manifest"; then + $MANIFEST_TOOL -manifest "$lt_tool_outputfile.manifest" -outputresource:"$lt_tool_outputfile" || exit 1; + $RM "$lt_outputfile.manifest"; + fi' + ;; + *) + # Assume MSVC wrapper + hardcode_libdir_flag_spec=' ' + allow_undefined_flag=unsupported + # Tell ltmain to make .lib files, not .a files. + libext=lib + # Tell ltmain to make .dll files, not .so files. + shrext_cmds=".dll" + # FIXME: Setting linknames here is a bad hack. + archive_cmds='$CC -o $lib $libobjs $compiler_flags `func_echo_all "$deplibs" | $SED '\''s/ -lc$//'\''` -link -dll~linknames=' + # The linker will automatically build a .lib file if we build a DLL. + old_archive_from_new_cmds='true' + # FIXME: Should let the user specify the lib program. + old_archive_cmds='lib -OUT:$oldlib$oldobjs$old_deplibs' + enable_shared_with_static_runtimes=yes + ;; + esac + ;; + + darwin* | rhapsody*) + + + archive_cmds_need_lc=no + hardcode_direct=no + hardcode_automatic=yes + hardcode_shlibpath_var=unsupported + if test "$lt_cv_ld_force_load" = "yes"; then + whole_archive_flag_spec='`for conv in $convenience\"\"; do test -n \"$conv\" && new_convenience=\"$new_convenience ${wl}-force_load,$conv\"; done; func_echo_all \"$new_convenience\"`' + + else + whole_archive_flag_spec='' + fi + link_all_deplibs=yes + allow_undefined_flag="$_lt_dar_allow_undefined" + case $cc_basename in + ifort*) _lt_dar_can_shared=yes ;; + *) _lt_dar_can_shared=$GCC ;; + esac + if test "$_lt_dar_can_shared" = "yes"; then + output_verbose_link_cmd=func_echo_all + archive_cmds="\$CC -dynamiclib \$allow_undefined_flag -o \$lib \$libobjs \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring $_lt_dar_single_mod${_lt_dsymutil}" + module_cmds="\$CC \$allow_undefined_flag -o \$lib -bundle \$libobjs \$deplibs \$compiler_flags${_lt_dsymutil}" + archive_expsym_cmds="sed 's,^,_,' < \$export_symbols > \$output_objdir/\${libname}-symbols.expsym~\$CC -dynamiclib \$allow_undefined_flag -o \$lib \$libobjs \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring ${_lt_dar_single_mod}${_lt_dar_export_syms}${_lt_dsymutil}" + module_expsym_cmds="sed -e 's,^,_,' < \$export_symbols > \$output_objdir/\${libname}-symbols.expsym~\$CC \$allow_undefined_flag -o \$lib -bundle \$libobjs \$deplibs \$compiler_flags${_lt_dar_export_syms}${_lt_dsymutil}" + + else + ld_shlibs=no + fi + + ;; + + dgux*) + archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags' + hardcode_libdir_flag_spec='-L$libdir' + hardcode_shlibpath_var=no + ;; + + # FreeBSD 2.2.[012] allows us to include c++rt0.o to get C++ constructor + # support. Future versions do this automatically, but an explicit c++rt0.o + # does not break anything, and helps significantly (at the cost of a little + # extra space). + freebsd2.2*) + archive_cmds='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags /usr/lib/c++rt0.o' + hardcode_libdir_flag_spec='-R$libdir' + hardcode_direct=yes + hardcode_shlibpath_var=no + ;; + + # Unfortunately, older versions of FreeBSD 2 do not have this feature. + freebsd2.*) + archive_cmds='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags' + hardcode_direct=yes + hardcode_minus_L=yes + hardcode_shlibpath_var=no + ;; + + # FreeBSD 3 and greater uses gcc -shared to do shared libraries. + freebsd* | dragonfly*) + archive_cmds='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags' + hardcode_libdir_flag_spec='-R$libdir' + hardcode_direct=yes + hardcode_shlibpath_var=no + ;; + + hpux9*) + if test "$GCC" = yes; then + archive_cmds='$RM $output_objdir/$soname~$CC -shared $pic_flag ${wl}+b ${wl}$install_libdir -o $output_objdir/$soname $libobjs $deplibs $compiler_flags~test $output_objdir/$soname = $lib || mv $output_objdir/$soname $lib' + else + archive_cmds='$RM $output_objdir/$soname~$LD -b +b $install_libdir -o $output_objdir/$soname $libobjs $deplibs $linker_flags~test $output_objdir/$soname = $lib || mv $output_objdir/$soname $lib' + fi + hardcode_libdir_flag_spec='${wl}+b ${wl}$libdir' + hardcode_libdir_separator=: + hardcode_direct=yes + + # hardcode_minus_L: Not really in the search PATH, + # but as the default location of the library. + hardcode_minus_L=yes + export_dynamic_flag_spec='${wl}-E' + ;; + + hpux10*) + if test "$GCC" = yes && test "$with_gnu_ld" = no; then + archive_cmds='$CC -shared $pic_flag ${wl}+h ${wl}$soname ${wl}+b ${wl}$install_libdir -o $lib $libobjs $deplibs $compiler_flags' + else + archive_cmds='$LD -b +h $soname +b $install_libdir -o $lib $libobjs $deplibs $linker_flags' + fi + if test "$with_gnu_ld" = no; then + hardcode_libdir_flag_spec='${wl}+b ${wl}$libdir' + hardcode_libdir_separator=: + hardcode_direct=yes + hardcode_direct_absolute=yes + export_dynamic_flag_spec='${wl}-E' + # hardcode_minus_L: Not really in the search PATH, + # but as the default location of the library. + hardcode_minus_L=yes + fi + ;; + + hpux11*) + if test "$GCC" = yes && test "$with_gnu_ld" = no; then + case $host_cpu in + hppa*64*) + archive_cmds='$CC -shared ${wl}+h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags' + ;; + ia64*) + archive_cmds='$CC -shared $pic_flag ${wl}+h ${wl}$soname ${wl}+nodefaultrpath -o $lib $libobjs $deplibs $compiler_flags' + ;; + *) + archive_cmds='$CC -shared $pic_flag ${wl}+h ${wl}$soname ${wl}+b ${wl}$install_libdir -o $lib $libobjs $deplibs $compiler_flags' + ;; + esac + else + case $host_cpu in + hppa*64*) + archive_cmds='$CC -b ${wl}+h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags' + ;; + ia64*) + archive_cmds='$CC -b ${wl}+h ${wl}$soname ${wl}+nodefaultrpath -o $lib $libobjs $deplibs $compiler_flags' + ;; + *) + + # Older versions of the 11.00 compiler do not understand -b yet + # (HP92453-01 A.11.01.20 doesn't, HP92453-01 B.11.X.35175-35176.GP does) + { $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC understands -b" >&5 +$as_echo_n "checking if $CC understands -b... " >&6; } +if ${lt_cv_prog_compiler__b+:} false; then : + $as_echo_n "(cached) " >&6 +else + lt_cv_prog_compiler__b=no + save_LDFLAGS="$LDFLAGS" + LDFLAGS="$LDFLAGS -b" + echo "$lt_simple_link_test_code" > conftest.$ac_ext + if (eval $ac_link 2>conftest.err) && test -s conftest$ac_exeext; then + # The linker can only warn and ignore the option if not recognized + # So say no if there are warnings + if test -s conftest.err; then + # Append any errors to the config.log. + cat conftest.err 1>&5 + $ECHO "$_lt_linker_boilerplate" | $SED '/^$/d' > conftest.exp + $SED '/^$/d; /^ *+/d' conftest.err >conftest.er2 + if diff conftest.exp conftest.er2 >/dev/null; then + lt_cv_prog_compiler__b=yes + fi + else + lt_cv_prog_compiler__b=yes + fi + fi + $RM -r conftest* + LDFLAGS="$save_LDFLAGS" + +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler__b" >&5 +$as_echo "$lt_cv_prog_compiler__b" >&6; } + +if test x"$lt_cv_prog_compiler__b" = xyes; then + archive_cmds='$CC -b ${wl}+h ${wl}$soname ${wl}+b ${wl}$install_libdir -o $lib $libobjs $deplibs $compiler_flags' +else + archive_cmds='$LD -b +h $soname +b $install_libdir -o $lib $libobjs $deplibs $linker_flags' +fi + + ;; + esac + fi + if test "$with_gnu_ld" = no; then + hardcode_libdir_flag_spec='${wl}+b ${wl}$libdir' + hardcode_libdir_separator=: + + case $host_cpu in + hppa*64*|ia64*) + hardcode_direct=no + hardcode_shlibpath_var=no + ;; + *) + hardcode_direct=yes + hardcode_direct_absolute=yes + export_dynamic_flag_spec='${wl}-E' + + # hardcode_minus_L: Not really in the search PATH, + # but as the default location of the library. + hardcode_minus_L=yes + ;; + esac + fi + ;; + + irix5* | irix6* | nonstopux*) + if test "$GCC" = yes; then + archive_cmds='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-soname ${wl}$soname `test -n "$verstring" && func_echo_all "${wl}-set_version ${wl}$verstring"` ${wl}-update_registry ${wl}${output_objdir}/so_locations -o $lib' + # Try to use the -exported_symbol ld option, if it does not + # work, assume that -exports_file does not work either and + # implicitly export all symbols. + # This should be the same for all languages, so no per-tag cache variable. + { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the $host_os linker accepts -exported_symbol" >&5 +$as_echo_n "checking whether the $host_os linker accepts -exported_symbol... " >&6; } +if ${lt_cv_irix_exported_symbol+:} false; then : + $as_echo_n "(cached) " >&6 +else + save_LDFLAGS="$LDFLAGS" + LDFLAGS="$LDFLAGS -shared ${wl}-exported_symbol ${wl}foo ${wl}-update_registry ${wl}/dev/null" + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +int foo (void) { return 0; } +_ACEOF +if ac_fn_c_try_link "$LINENO"; then : + lt_cv_irix_exported_symbol=yes +else + lt_cv_irix_exported_symbol=no +fi +rm -f core conftest.err conftest.$ac_objext \ + conftest$ac_exeext conftest.$ac_ext + LDFLAGS="$save_LDFLAGS" +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_irix_exported_symbol" >&5 +$as_echo "$lt_cv_irix_exported_symbol" >&6; } + if test "$lt_cv_irix_exported_symbol" = yes; then + archive_expsym_cmds='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-soname ${wl}$soname `test -n "$verstring" && func_echo_all "${wl}-set_version ${wl}$verstring"` ${wl}-update_registry ${wl}${output_objdir}/so_locations ${wl}-exports_file ${wl}$export_symbols -o $lib' + fi + else + archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry ${output_objdir}/so_locations -o $lib' + archive_expsym_cmds='$CC -shared $libobjs $deplibs $compiler_flags -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry ${output_objdir}/so_locations -exports_file $export_symbols -o $lib' + fi + archive_cmds_need_lc='no' + hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir' + hardcode_libdir_separator=: + inherit_rpath=yes + link_all_deplibs=yes + ;; + + netbsd*) + if echo __ELF__ | $CC -E - | $GREP __ELF__ >/dev/null; then + archive_cmds='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags' # a.out + else + archive_cmds='$LD -shared -o $lib $libobjs $deplibs $linker_flags' # ELF + fi + hardcode_libdir_flag_spec='-R$libdir' + hardcode_direct=yes + hardcode_shlibpath_var=no + ;; + + newsos6) + archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags' + hardcode_direct=yes + hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir' + hardcode_libdir_separator=: + hardcode_shlibpath_var=no + ;; + + *nto* | *qnx*) + ;; + + openbsd*) + if test -f /usr/libexec/ld.so; then + hardcode_direct=yes + hardcode_shlibpath_var=no + hardcode_direct_absolute=yes + if test -z "`echo __ELF__ | $CC -E - | $GREP __ELF__`" || test "$host_os-$host_cpu" = "openbsd2.8-powerpc"; then + archive_cmds='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags' + archive_expsym_cmds='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags ${wl}-retain-symbols-file,$export_symbols' + hardcode_libdir_flag_spec='${wl}-rpath,$libdir' + export_dynamic_flag_spec='${wl}-E' + else + case $host_os in + openbsd[01].* | openbsd2.[0-7] | openbsd2.[0-7].*) + archive_cmds='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags' + hardcode_libdir_flag_spec='-R$libdir' + ;; + *) + archive_cmds='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags' + hardcode_libdir_flag_spec='${wl}-rpath,$libdir' + ;; + esac + fi + else + ld_shlibs=no + fi + ;; + + os2*) + hardcode_libdir_flag_spec='-L$libdir' + hardcode_minus_L=yes + allow_undefined_flag=unsupported + archive_cmds='$ECHO "LIBRARY $libname INITINSTANCE" > $output_objdir/$libname.def~$ECHO "DESCRIPTION \"$libname\"" >> $output_objdir/$libname.def~echo DATA >> $output_objdir/$libname.def~echo " SINGLE NONSHARED" >> $output_objdir/$libname.def~echo EXPORTS >> $output_objdir/$libname.def~emxexp $libobjs >> $output_objdir/$libname.def~$CC -Zdll -Zcrtdll -o $lib $libobjs $deplibs $compiler_flags $output_objdir/$libname.def' + old_archive_from_new_cmds='emximp -o $output_objdir/$libname.a $output_objdir/$libname.def' + ;; + + osf3*) + if test "$GCC" = yes; then + allow_undefined_flag=' ${wl}-expect_unresolved ${wl}\*' + archive_cmds='$CC -shared${allow_undefined_flag} $libobjs $deplibs $compiler_flags ${wl}-soname ${wl}$soname `test -n "$verstring" && func_echo_all "${wl}-set_version ${wl}$verstring"` ${wl}-update_registry ${wl}${output_objdir}/so_locations -o $lib' + else + allow_undefined_flag=' -expect_unresolved \*' + archive_cmds='$CC -shared${allow_undefined_flag} $libobjs $deplibs $compiler_flags -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry ${output_objdir}/so_locations -o $lib' + fi + archive_cmds_need_lc='no' + hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir' + hardcode_libdir_separator=: + ;; + + osf4* | osf5*) # as osf3* with the addition of -msym flag + if test "$GCC" = yes; then + allow_undefined_flag=' ${wl}-expect_unresolved ${wl}\*' + archive_cmds='$CC -shared${allow_undefined_flag} $pic_flag $libobjs $deplibs $compiler_flags ${wl}-msym ${wl}-soname ${wl}$soname `test -n "$verstring" && func_echo_all "${wl}-set_version ${wl}$verstring"` ${wl}-update_registry ${wl}${output_objdir}/so_locations -o $lib' + hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir' + else + allow_undefined_flag=' -expect_unresolved \*' + archive_cmds='$CC -shared${allow_undefined_flag} $libobjs $deplibs $compiler_flags -msym -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry ${output_objdir}/so_locations -o $lib' + archive_expsym_cmds='for i in `cat $export_symbols`; do printf "%s %s\\n" -exported_symbol "\$i" >> $lib.exp; done; printf "%s\\n" "-hidden">> $lib.exp~ + $CC -shared${allow_undefined_flag} ${wl}-input ${wl}$lib.exp $compiler_flags $libobjs $deplibs -soname $soname `test -n "$verstring" && $ECHO "-set_version $verstring"` -update_registry ${output_objdir}/so_locations -o $lib~$RM $lib.exp' + + # Both c and cxx compiler support -rpath directly + hardcode_libdir_flag_spec='-rpath $libdir' + fi + archive_cmds_need_lc='no' + hardcode_libdir_separator=: + ;; + + solaris*) + no_undefined_flag=' -z defs' + if test "$GCC" = yes; then + wlarc='${wl}' + archive_cmds='$CC -shared $pic_flag ${wl}-z ${wl}text ${wl}-h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags' + archive_expsym_cmds='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~ + $CC -shared $pic_flag ${wl}-z ${wl}text ${wl}-M ${wl}$lib.exp ${wl}-h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags~$RM $lib.exp' + else + case `$CC -V 2>&1` in + *"Compilers 5.0"*) + wlarc='' + archive_cmds='$LD -G${allow_undefined_flag} -h $soname -o $lib $libobjs $deplibs $linker_flags' + archive_expsym_cmds='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~ + $LD -G${allow_undefined_flag} -M $lib.exp -h $soname -o $lib $libobjs $deplibs $linker_flags~$RM $lib.exp' + ;; + *) + wlarc='${wl}' + archive_cmds='$CC -G${allow_undefined_flag} -h $soname -o $lib $libobjs $deplibs $compiler_flags' + archive_expsym_cmds='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~ + $CC -G${allow_undefined_flag} -M $lib.exp -h $soname -o $lib $libobjs $deplibs $compiler_flags~$RM $lib.exp' + ;; + esac + fi + hardcode_libdir_flag_spec='-R$libdir' + hardcode_shlibpath_var=no + case $host_os in + solaris2.[0-5] | solaris2.[0-5].*) ;; + *) + # The compiler driver will combine and reorder linker options, + # but understands `-z linker_flag'. GCC discards it without `$wl', + # but is careful enough not to reorder. + # Supported since Solaris 2.6 (maybe 2.5.1?) + if test "$GCC" = yes; then + whole_archive_flag_spec='${wl}-z ${wl}allextract$convenience ${wl}-z ${wl}defaultextract' + else + whole_archive_flag_spec='-z allextract$convenience -z defaultextract' + fi + ;; + esac + link_all_deplibs=yes + ;; + + sunos4*) + if test "x$host_vendor" = xsequent; then + # Use $CC to link under sequent, because it throws in some extra .o + # files that make .init and .fini sections work. + archive_cmds='$CC -G ${wl}-h $soname -o $lib $libobjs $deplibs $compiler_flags' + else + archive_cmds='$LD -assert pure-text -Bstatic -o $lib $libobjs $deplibs $linker_flags' + fi + hardcode_libdir_flag_spec='-L$libdir' + hardcode_direct=yes + hardcode_minus_L=yes + hardcode_shlibpath_var=no + ;; + + sysv4) + case $host_vendor in + sni) + archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags' + hardcode_direct=yes # is this really true??? + ;; + siemens) + ## LD is ld it makes a PLAMLIB + ## CC just makes a GrossModule. + archive_cmds='$LD -G -o $lib $libobjs $deplibs $linker_flags' + reload_cmds='$CC -r -o $output$reload_objs' + hardcode_direct=no + ;; + motorola) + archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags' + hardcode_direct=no #Motorola manual says yes, but my tests say they lie + ;; + esac + runpath_var='LD_RUN_PATH' + hardcode_shlibpath_var=no + ;; + + sysv4.3*) + archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags' + hardcode_shlibpath_var=no + export_dynamic_flag_spec='-Bexport' + ;; + + sysv4*MP*) + if test -d /usr/nec; then + archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags' + hardcode_shlibpath_var=no + runpath_var=LD_RUN_PATH + hardcode_runpath_var=yes + ld_shlibs=yes + fi + ;; + + sysv4*uw2* | sysv5OpenUNIX* | sysv5UnixWare7.[01].[10]* | unixware7* | sco3.2v5.0.[024]*) + no_undefined_flag='${wl}-z,text' + archive_cmds_need_lc=no + hardcode_shlibpath_var=no + runpath_var='LD_RUN_PATH' + + if test "$GCC" = yes; then + archive_cmds='$CC -shared ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags' + archive_expsym_cmds='$CC -shared ${wl}-Bexport:$export_symbols ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags' + else + archive_cmds='$CC -G ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags' + archive_expsym_cmds='$CC -G ${wl}-Bexport:$export_symbols ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags' + fi + ;; + + sysv5* | sco3.2v5* | sco5v6*) + # Note: We can NOT use -z defs as we might desire, because we do not + # link with -lc, and that would cause any symbols used from libc to + # always be unresolved, which means just about no library would + # ever link correctly. If we're not using GNU ld we use -z text + # though, which does catch some bad symbols but isn't as heavy-handed + # as -z defs. + no_undefined_flag='${wl}-z,text' + allow_undefined_flag='${wl}-z,nodefs' + archive_cmds_need_lc=no + hardcode_shlibpath_var=no + hardcode_libdir_flag_spec='${wl}-R,$libdir' + hardcode_libdir_separator=':' + link_all_deplibs=yes + export_dynamic_flag_spec='${wl}-Bexport' + runpath_var='LD_RUN_PATH' + + if test "$GCC" = yes; then + archive_cmds='$CC -shared ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags' + archive_expsym_cmds='$CC -shared ${wl}-Bexport:$export_symbols ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags' + else + archive_cmds='$CC -G ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags' + archive_expsym_cmds='$CC -G ${wl}-Bexport:$export_symbols ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags' + fi + ;; + + uts4*) + archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags' + hardcode_libdir_flag_spec='-L$libdir' + hardcode_shlibpath_var=no + ;; + + *) + ld_shlibs=no + ;; + esac + + if test x$host_vendor = xsni; then + case $host in + sysv4 | sysv4.2uw2* | sysv4.3* | sysv5*) + export_dynamic_flag_spec='${wl}-Blargedynsym' + ;; + esac + fi + fi + +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ld_shlibs" >&5 +$as_echo "$ld_shlibs" >&6; } +test "$ld_shlibs" = no && can_build_shared=no + +with_gnu_ld=$with_gnu_ld + + + + + + + + + + + + + + + +# +# Do we need to explicitly link libc? +# +case "x$archive_cmds_need_lc" in +x|xyes) + # Assume -lc should be added + archive_cmds_need_lc=yes + + if test "$enable_shared" = yes && test "$GCC" = yes; then + case $archive_cmds in + *'~'*) + # FIXME: we may have to deal with multi-command sequences. + ;; + '$CC '*) + # Test whether the compiler implicitly links with -lc since on some + # systems, -lgcc has to come before -lc. If gcc already passes -lc + # to ld, don't add -lc before -lgcc. + { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether -lc should be explicitly linked in" >&5 +$as_echo_n "checking whether -lc should be explicitly linked in... " >&6; } +if ${lt_cv_archive_cmds_need_lc+:} false; then : + $as_echo_n "(cached) " >&6 +else + $RM conftest* + echo "$lt_simple_compile_test_code" > conftest.$ac_ext + + if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5 + (eval $ac_compile) 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; } 2>conftest.err; then + soname=conftest + lib=conftest + libobjs=conftest.$ac_objext + deplibs= + wl=$lt_prog_compiler_wl + pic_flag=$lt_prog_compiler_pic + compiler_flags=-v + linker_flags=-v + verstring= + output_objdir=. + libname=conftest + lt_save_allow_undefined_flag=$allow_undefined_flag + allow_undefined_flag= + if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$archive_cmds 2\>\&1 \| $GREP \" -lc \" \>/dev/null 2\>\&1\""; } >&5 + (eval $archive_cmds 2\>\&1 \| $GREP \" -lc \" \>/dev/null 2\>\&1) 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; } + then + lt_cv_archive_cmds_need_lc=no + else + lt_cv_archive_cmds_need_lc=yes + fi + allow_undefined_flag=$lt_save_allow_undefined_flag + else + cat conftest.err 1>&5 + fi + $RM conftest* + +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_archive_cmds_need_lc" >&5 +$as_echo "$lt_cv_archive_cmds_need_lc" >&6; } + archive_cmds_need_lc=$lt_cv_archive_cmds_need_lc + ;; + esac + fi + ;; +esac + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + { $as_echo "$as_me:${as_lineno-$LINENO}: checking dynamic linker characteristics" >&5 +$as_echo_n "checking dynamic linker characteristics... " >&6; } + +if test "$GCC" = yes; then + case $host_os in + darwin*) lt_awk_arg="/^libraries:/,/LR/" ;; + *) lt_awk_arg="/^libraries:/" ;; + esac + case $host_os in + mingw* | cegcc*) lt_sed_strip_eq="s,=\([A-Za-z]:\),\1,g" ;; + *) lt_sed_strip_eq="s,=/,/,g" ;; + esac + lt_search_path_spec=`$CC -print-search-dirs | awk $lt_awk_arg | $SED -e "s/^libraries://" -e $lt_sed_strip_eq` + case $lt_search_path_spec in + *\;*) + # if the path contains ";" then we assume it to be the separator + # otherwise default to the standard path separator (i.e. ":") - it is + # assumed that no part of a normal pathname contains ";" but that should + # okay in the real world where ";" in dirpaths is itself problematic. + lt_search_path_spec=`$ECHO "$lt_search_path_spec" | $SED 's/;/ /g'` + ;; + *) + lt_search_path_spec=`$ECHO "$lt_search_path_spec" | $SED "s/$PATH_SEPARATOR/ /g"` + ;; + esac + # Ok, now we have the path, separated by spaces, we can step through it + # and add multilib dir if necessary. + lt_tmp_lt_search_path_spec= + lt_multi_os_dir=`$CC $CPPFLAGS $CFLAGS $LDFLAGS -print-multi-os-directory 2>/dev/null` + for lt_sys_path in $lt_search_path_spec; do + if test -d "$lt_sys_path/$lt_multi_os_dir"; then + lt_tmp_lt_search_path_spec="$lt_tmp_lt_search_path_spec $lt_sys_path/$lt_multi_os_dir" + else + test -d "$lt_sys_path" && \ + lt_tmp_lt_search_path_spec="$lt_tmp_lt_search_path_spec $lt_sys_path" + fi + done + lt_search_path_spec=`$ECHO "$lt_tmp_lt_search_path_spec" | awk ' +BEGIN {RS=" "; FS="/|\n";} { + lt_foo=""; + lt_count=0; + for (lt_i = NF; lt_i > 0; lt_i--) { + if ($lt_i != "" && $lt_i != ".") { + if ($lt_i == "..") { + lt_count++; + } else { + if (lt_count == 0) { + lt_foo="/" $lt_i lt_foo; + } else { + lt_count--; + } + } + } + } + if (lt_foo != "") { lt_freq[lt_foo]++; } + if (lt_freq[lt_foo] == 1) { print lt_foo; } +}'` + # AWK program above erroneously prepends '/' to C:/dos/paths + # for these hosts. + case $host_os in + mingw* | cegcc*) lt_search_path_spec=`$ECHO "$lt_search_path_spec" |\ + $SED 's,/\([A-Za-z]:\),\1,g'` ;; + esac + sys_lib_search_path_spec=`$ECHO "$lt_search_path_spec" | $lt_NL2SP` +else + sys_lib_search_path_spec="/lib /usr/lib /usr/local/lib" +fi +library_names_spec= +libname_spec='lib$name' +soname_spec= +shrext_cmds=".so" +postinstall_cmds= +postuninstall_cmds= +finish_cmds= +finish_eval= +shlibpath_var= +shlibpath_overrides_runpath=unknown +version_type=none +dynamic_linker="$host_os ld.so" +sys_lib_dlsearch_path_spec="/lib /usr/lib" +need_lib_prefix=unknown +hardcode_into_libs=no + +# when you set need_version to no, make sure it does not cause -set_version +# flags to be left without arguments +need_version=unknown + +case $host_os in +aix3*) + version_type=linux # correct to gnu/linux during the next big refactor + library_names_spec='${libname}${release}${shared_ext}$versuffix $libname.a' + shlibpath_var=LIBPATH + + # AIX 3 has no versioning support, so we append a major version to the name. + soname_spec='${libname}${release}${shared_ext}$major' + ;; + +aix[4-9]*) + version_type=linux # correct to gnu/linux during the next big refactor + need_lib_prefix=no + need_version=no + hardcode_into_libs=yes + if test "$host_cpu" = ia64; then + # AIX 5 supports IA64 + library_names_spec='${libname}${release}${shared_ext}$major ${libname}${release}${shared_ext}$versuffix $libname${shared_ext}' + shlibpath_var=LD_LIBRARY_PATH + else + # With GCC up to 2.95.x, collect2 would create an import file + # for dependence libraries. The import file would start with + # the line `#! .'. This would cause the generated library to + # depend on `.', always an invalid library. This was fixed in + # development snapshots of GCC prior to 3.0. + case $host_os in + aix4 | aix4.[01] | aix4.[01].*) + if { echo '#if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 97)' + echo ' yes ' + echo '#endif'; } | ${CC} -E - | $GREP yes > /dev/null; then + : + else + can_build_shared=no + fi + ;; + esac + # AIX (on Power*) has no versioning support, so currently we can not hardcode correct + # soname into executable. Probably we can add versioning support to + # collect2, so additional links can be useful in future. + if test "$aix_use_runtimelinking" = yes; then + # If using run time linking (on AIX 4.2 or later) use lib.so + # instead of lib.a to let people know that these are not + # typical AIX shared libraries. + library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}' + else + # We preserve .a as extension for shared libraries through AIX4.2 + # and later when we are not doing run time linking. + library_names_spec='${libname}${release}.a $libname.a' + soname_spec='${libname}${release}${shared_ext}$major' + fi + shlibpath_var=LIBPATH + fi + ;; + +amigaos*) + case $host_cpu in + powerpc) + # Since July 2007 AmigaOS4 officially supports .so libraries. + # When compiling the executable, add -use-dynld -Lsobjs: to the compileline. + library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}' + ;; + m68k) + library_names_spec='$libname.ixlibrary $libname.a' + # Create ${libname}_ixlibrary.a entries in /sys/libs. + finish_eval='for lib in `ls $libdir/*.ixlibrary 2>/dev/null`; do libname=`func_echo_all "$lib" | $SED '\''s%^.*/\([^/]*\)\.ixlibrary$%\1%'\''`; test $RM /sys/libs/${libname}_ixlibrary.a; $show "cd /sys/libs && $LN_S $lib ${libname}_ixlibrary.a"; cd /sys/libs && $LN_S $lib ${libname}_ixlibrary.a || exit 1; done' + ;; + esac + ;; + +beos*) + library_names_spec='${libname}${shared_ext}' + dynamic_linker="$host_os ld.so" + shlibpath_var=LIBRARY_PATH + ;; + +bsdi[45]*) + version_type=linux # correct to gnu/linux during the next big refactor + need_version=no + library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}' + soname_spec='${libname}${release}${shared_ext}$major' + finish_cmds='PATH="\$PATH:/sbin" ldconfig $libdir' + shlibpath_var=LD_LIBRARY_PATH + sys_lib_search_path_spec="/shlib /usr/lib /usr/X11/lib /usr/contrib/lib /lib /usr/local/lib" + sys_lib_dlsearch_path_spec="/shlib /usr/lib /usr/local/lib" + # the default ld.so.conf also contains /usr/contrib/lib and + # /usr/X11R6/lib (/usr/X11 is a link to /usr/X11R6), but let us allow + # libtool to hard-code these into programs + ;; + +cygwin* | mingw* | pw32* | cegcc*) + version_type=windows + shrext_cmds=".dll" + need_version=no + need_lib_prefix=no + + case $GCC,$cc_basename in + yes,*) + # gcc + library_names_spec='$libname.dll.a' + # DLL is installed to $(libdir)/../bin by postinstall_cmds + postinstall_cmds='base_file=`basename \${file}`~ + dlpath=`$SHELL 2>&1 -c '\''. $dir/'\''\${base_file}'\''i; echo \$dlname'\''`~ + dldir=$destdir/`dirname \$dlpath`~ + test -d \$dldir || mkdir -p \$dldir~ + $install_prog $dir/$dlname \$dldir/$dlname~ + chmod a+x \$dldir/$dlname~ + if test -n '\''$stripme'\'' && test -n '\''$striplib'\''; then + eval '\''$striplib \$dldir/$dlname'\'' || exit \$?; + fi' + postuninstall_cmds='dldll=`$SHELL 2>&1 -c '\''. $file; echo \$dlname'\''`~ + dlpath=$dir/\$dldll~ + $RM \$dlpath' + shlibpath_overrides_runpath=yes + + case $host_os in + cygwin*) + # Cygwin DLLs use 'cyg' prefix rather than 'lib' + soname_spec='`echo ${libname} | sed -e 's/^lib/cyg/'``echo ${release} | $SED -e 's/[.]/-/g'`${versuffix}${shared_ext}' + + sys_lib_search_path_spec="$sys_lib_search_path_spec /usr/lib/w32api" + ;; + mingw* | cegcc*) + # MinGW DLLs use traditional 'lib' prefix + soname_spec='${libname}`echo ${release} | $SED -e 's/[.]/-/g'`${versuffix}${shared_ext}' + ;; + pw32*) + # pw32 DLLs use 'pw' prefix rather than 'lib' + library_names_spec='`echo ${libname} | sed -e 's/^lib/pw/'``echo ${release} | $SED -e 's/[.]/-/g'`${versuffix}${shared_ext}' + ;; + esac + dynamic_linker='Win32 ld.exe' + ;; + + *,cl*) + # Native MSVC + libname_spec='$name' + soname_spec='${libname}`echo ${release} | $SED -e 's/[.]/-/g'`${versuffix}${shared_ext}' + library_names_spec='${libname}.dll.lib' + + case $build_os in + mingw*) + sys_lib_search_path_spec= + lt_save_ifs=$IFS + IFS=';' + for lt_path in $LIB + do + IFS=$lt_save_ifs + # Let DOS variable expansion print the short 8.3 style file name. + lt_path=`cd "$lt_path" 2>/dev/null && cmd //C "for %i in (".") do @echo %~si"` + sys_lib_search_path_spec="$sys_lib_search_path_spec $lt_path" + done + IFS=$lt_save_ifs + # Convert to MSYS style. + sys_lib_search_path_spec=`$ECHO "$sys_lib_search_path_spec" | sed -e 's|\\\\|/|g' -e 's| \\([a-zA-Z]\\):| /\\1|g' -e 's|^ ||'` + ;; + cygwin*) + # Convert to unix form, then to dos form, then back to unix form + # but this time dos style (no spaces!) so that the unix form looks + # like /cygdrive/c/PROGRA~1:/cygdr... + sys_lib_search_path_spec=`cygpath --path --unix "$LIB"` + sys_lib_search_path_spec=`cygpath --path --dos "$sys_lib_search_path_spec" 2>/dev/null` + sys_lib_search_path_spec=`cygpath --path --unix "$sys_lib_search_path_spec" | $SED -e "s/$PATH_SEPARATOR/ /g"` + ;; + *) + sys_lib_search_path_spec="$LIB" + if $ECHO "$sys_lib_search_path_spec" | $GREP ';[c-zC-Z]:/' >/dev/null; then + # It is most probably a Windows format PATH. + sys_lib_search_path_spec=`$ECHO "$sys_lib_search_path_spec" | $SED -e 's/;/ /g'` + else + sys_lib_search_path_spec=`$ECHO "$sys_lib_search_path_spec" | $SED -e "s/$PATH_SEPARATOR/ /g"` + fi + # FIXME: find the short name or the path components, as spaces are + # common. (e.g. "Program Files" -> "PROGRA~1") + ;; + esac + + # DLL is installed to $(libdir)/../bin by postinstall_cmds + postinstall_cmds='base_file=`basename \${file}`~ + dlpath=`$SHELL 2>&1 -c '\''. $dir/'\''\${base_file}'\''i; echo \$dlname'\''`~ + dldir=$destdir/`dirname \$dlpath`~ + test -d \$dldir || mkdir -p \$dldir~ + $install_prog $dir/$dlname \$dldir/$dlname' + postuninstall_cmds='dldll=`$SHELL 2>&1 -c '\''. $file; echo \$dlname'\''`~ + dlpath=$dir/\$dldll~ + $RM \$dlpath' + shlibpath_overrides_runpath=yes + dynamic_linker='Win32 link.exe' + ;; + + *) + # Assume MSVC wrapper + library_names_spec='${libname}`echo ${release} | $SED -e 's/[.]/-/g'`${versuffix}${shared_ext} $libname.lib' + dynamic_linker='Win32 ld.exe' + ;; + esac + # FIXME: first we should search . and the directory the executable is in + shlibpath_var=PATH + ;; + +darwin* | rhapsody*) + dynamic_linker="$host_os dyld" + version_type=darwin + need_lib_prefix=no + need_version=no + library_names_spec='${libname}${release}${major}$shared_ext ${libname}$shared_ext' + soname_spec='${libname}${release}${major}$shared_ext' + shlibpath_overrides_runpath=yes + shlibpath_var=DYLD_LIBRARY_PATH + shrext_cmds='`test .$module = .yes && echo .so || echo .dylib`' + + sys_lib_search_path_spec="$sys_lib_search_path_spec /usr/local/lib" + sys_lib_dlsearch_path_spec='/usr/local/lib /lib /usr/lib' + ;; + +dgux*) + version_type=linux # correct to gnu/linux during the next big refactor + need_lib_prefix=no + need_version=no + library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname$shared_ext' + soname_spec='${libname}${release}${shared_ext}$major' + shlibpath_var=LD_LIBRARY_PATH + ;; + +freebsd* | dragonfly*) + # DragonFly does not have aout. When/if they implement a new + # versioning mechanism, adjust this. + if test -x /usr/bin/objformat; then + objformat=`/usr/bin/objformat` + else + case $host_os in + freebsd[23].*) objformat=aout ;; + *) objformat=elf ;; + esac + fi + version_type=freebsd-$objformat + case $version_type in + freebsd-elf*) + library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext} $libname${shared_ext}' + need_version=no + need_lib_prefix=no + ;; + freebsd-*) + library_names_spec='${libname}${release}${shared_ext}$versuffix $libname${shared_ext}$versuffix' + need_version=yes + ;; + esac + shlibpath_var=LD_LIBRARY_PATH + case $host_os in + freebsd2.*) + shlibpath_overrides_runpath=yes + ;; + freebsd3.[01]* | freebsdelf3.[01]*) + shlibpath_overrides_runpath=yes + hardcode_into_libs=yes + ;; + freebsd3.[2-9]* | freebsdelf3.[2-9]* | \ + freebsd4.[0-5] | freebsdelf4.[0-5] | freebsd4.1.1 | freebsdelf4.1.1) + shlibpath_overrides_runpath=no + hardcode_into_libs=yes + ;; + *) # from 4.6 on, and DragonFly + shlibpath_overrides_runpath=yes + hardcode_into_libs=yes + ;; + esac + ;; + +gnu*) + version_type=linux # correct to gnu/linux during the next big refactor + need_lib_prefix=no + need_version=no + library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}${major} ${libname}${shared_ext}' + soname_spec='${libname}${release}${shared_ext}$major' + shlibpath_var=LD_LIBRARY_PATH + shlibpath_overrides_runpath=no + hardcode_into_libs=yes + ;; + +haiku*) + version_type=linux # correct to gnu/linux during the next big refactor + need_lib_prefix=no + need_version=no + dynamic_linker="$host_os runtime_loader" + library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}${major} ${libname}${shared_ext}' + soname_spec='${libname}${release}${shared_ext}$major' + shlibpath_var=LIBRARY_PATH + shlibpath_overrides_runpath=yes + sys_lib_dlsearch_path_spec='/boot/home/config/lib /boot/common/lib /boot/system/lib' + hardcode_into_libs=yes + ;; + +hpux9* | hpux10* | hpux11*) + # Give a soname corresponding to the major version so that dld.sl refuses to + # link against other versions. + version_type=sunos + need_lib_prefix=no + need_version=no + case $host_cpu in + ia64*) + shrext_cmds='.so' + hardcode_into_libs=yes + dynamic_linker="$host_os dld.so" + shlibpath_var=LD_LIBRARY_PATH + shlibpath_overrides_runpath=yes # Unless +noenvvar is specified. + library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}' + soname_spec='${libname}${release}${shared_ext}$major' + if test "X$HPUX_IA64_MODE" = X32; then + sys_lib_search_path_spec="/usr/lib/hpux32 /usr/local/lib/hpux32 /usr/local/lib" + else + sys_lib_search_path_spec="/usr/lib/hpux64 /usr/local/lib/hpux64" + fi + sys_lib_dlsearch_path_spec=$sys_lib_search_path_spec + ;; + hppa*64*) + shrext_cmds='.sl' + hardcode_into_libs=yes + dynamic_linker="$host_os dld.sl" + shlibpath_var=LD_LIBRARY_PATH # How should we handle SHLIB_PATH + shlibpath_overrides_runpath=yes # Unless +noenvvar is specified. + library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}' + soname_spec='${libname}${release}${shared_ext}$major' + sys_lib_search_path_spec="/usr/lib/pa20_64 /usr/ccs/lib/pa20_64" + sys_lib_dlsearch_path_spec=$sys_lib_search_path_spec + ;; + *) + shrext_cmds='.sl' + dynamic_linker="$host_os dld.sl" + shlibpath_var=SHLIB_PATH + shlibpath_overrides_runpath=no # +s is required to enable SHLIB_PATH + library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}' + soname_spec='${libname}${release}${shared_ext}$major' + ;; + esac + # HP-UX runs *really* slowly unless shared libraries are mode 555, ... + postinstall_cmds='chmod 555 $lib' + # or fails outright, so override atomically: + install_override_mode=555 + ;; + +interix[3-9]*) + version_type=linux # correct to gnu/linux during the next big refactor + need_lib_prefix=no + need_version=no + library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major ${libname}${shared_ext}' + soname_spec='${libname}${release}${shared_ext}$major' + dynamic_linker='Interix 3.x ld.so.1 (PE, like ELF)' + shlibpath_var=LD_LIBRARY_PATH + shlibpath_overrides_runpath=no + hardcode_into_libs=yes + ;; + +irix5* | irix6* | nonstopux*) + case $host_os in + nonstopux*) version_type=nonstopux ;; + *) + if test "$lt_cv_prog_gnu_ld" = yes; then + version_type=linux # correct to gnu/linux during the next big refactor + else + version_type=irix + fi ;; + esac + need_lib_prefix=no + need_version=no + soname_spec='${libname}${release}${shared_ext}$major' + library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major ${libname}${release}${shared_ext} $libname${shared_ext}' + case $host_os in + irix5* | nonstopux*) + libsuff= shlibsuff= + ;; + *) + case $LD in # libtool.m4 will add one of these switches to LD + *-32|*"-32 "|*-melf32bsmip|*"-melf32bsmip ") + libsuff= shlibsuff= libmagic=32-bit;; + *-n32|*"-n32 "|*-melf32bmipn32|*"-melf32bmipn32 ") + libsuff=32 shlibsuff=N32 libmagic=N32;; + *-64|*"-64 "|*-melf64bmip|*"-melf64bmip ") + libsuff=64 shlibsuff=64 libmagic=64-bit;; + *) libsuff= shlibsuff= libmagic=never-match;; + esac + ;; + esac + shlibpath_var=LD_LIBRARY${shlibsuff}_PATH + shlibpath_overrides_runpath=no + sys_lib_search_path_spec="/usr/lib${libsuff} /lib${libsuff} /usr/local/lib${libsuff}" + sys_lib_dlsearch_path_spec="/usr/lib${libsuff} /lib${libsuff}" + hardcode_into_libs=yes + ;; + +# No shared lib support for Linux oldld, aout, or coff. +linux*oldld* | linux*aout* | linux*coff*) + dynamic_linker=no + ;; + +# This must be glibc/ELF. +linux* | k*bsd*-gnu | kopensolaris*-gnu) + version_type=linux # correct to gnu/linux during the next big refactor + need_lib_prefix=no + need_version=no + library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}' + soname_spec='${libname}${release}${shared_ext}$major' + finish_cmds='PATH="\$PATH:/sbin" ldconfig -n $libdir' + shlibpath_var=LD_LIBRARY_PATH + shlibpath_overrides_runpath=no + + # Some binutils ld are patched to set DT_RUNPATH + if ${lt_cv_shlibpath_overrides_runpath+:} false; then : + $as_echo_n "(cached) " >&6 +else + lt_cv_shlibpath_overrides_runpath=no + save_LDFLAGS=$LDFLAGS + save_libdir=$libdir + eval "libdir=/foo; wl=\"$lt_prog_compiler_wl\"; \ + LDFLAGS=\"\$LDFLAGS $hardcode_libdir_flag_spec\"" + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +int +main () +{ + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_link "$LINENO"; then : + if ($OBJDUMP -p conftest$ac_exeext) 2>/dev/null | grep "RUNPATH.*$libdir" >/dev/null; then : + lt_cv_shlibpath_overrides_runpath=yes +fi +fi +rm -f core conftest.err conftest.$ac_objext \ + conftest$ac_exeext conftest.$ac_ext + LDFLAGS=$save_LDFLAGS + libdir=$save_libdir + +fi + + shlibpath_overrides_runpath=$lt_cv_shlibpath_overrides_runpath + + # This implies no fast_install, which is unacceptable. + # Some rework will be needed to allow for fast_install + # before this can be enabled. + hardcode_into_libs=yes + + # Append ld.so.conf contents to the search path + if test -f /etc/ld.so.conf; then + lt_ld_extra=`awk '/^include / { system(sprintf("cd /etc; cat %s 2>/dev/null", \$2)); skip = 1; } { if (!skip) print \$0; skip = 0; }' < /etc/ld.so.conf | $SED -e 's/#.*//;/^[ ]*hwcap[ ]/d;s/[:, ]/ /g;s/=[^=]*$//;s/=[^= ]* / /g;s/"//g;/^$/d' | tr '\n' ' '` + sys_lib_dlsearch_path_spec="/lib /usr/lib $lt_ld_extra" + fi + + # We used to test for /lib/ld.so.1 and disable shared libraries on + # powerpc, because MkLinux only supported shared libraries with the + # GNU dynamic linker. Since this was broken with cross compilers, + # most powerpc-linux boxes support dynamic linking these days and + # people can always --disable-shared, the test was removed, and we + # assume the GNU/Linux dynamic linker is in use. + dynamic_linker='GNU/Linux ld.so' + ;; + +netbsd*) + version_type=sunos + need_lib_prefix=no + need_version=no + if echo __ELF__ | $CC -E - | $GREP __ELF__ >/dev/null; then + library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${shared_ext}$versuffix' + finish_cmds='PATH="\$PATH:/sbin" ldconfig -m $libdir' + dynamic_linker='NetBSD (a.out) ld.so' + else + library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major ${libname}${shared_ext}' + soname_spec='${libname}${release}${shared_ext}$major' + dynamic_linker='NetBSD ld.elf_so' + fi + shlibpath_var=LD_LIBRARY_PATH + shlibpath_overrides_runpath=yes + hardcode_into_libs=yes + ;; + +newsos6) + version_type=linux # correct to gnu/linux during the next big refactor + library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}' + shlibpath_var=LD_LIBRARY_PATH + shlibpath_overrides_runpath=yes + ;; + +*nto* | *qnx*) + version_type=qnx + need_lib_prefix=no + need_version=no + library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}' + soname_spec='${libname}${release}${shared_ext}$major' + shlibpath_var=LD_LIBRARY_PATH + shlibpath_overrides_runpath=no + hardcode_into_libs=yes + dynamic_linker='ldqnx.so' + ;; + +openbsd*) + version_type=sunos + sys_lib_dlsearch_path_spec="/usr/lib" + need_lib_prefix=no + # Some older versions of OpenBSD (3.3 at least) *do* need versioned libs. + case $host_os in + openbsd3.3 | openbsd3.3.*) need_version=yes ;; + *) need_version=no ;; + esac + library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${shared_ext}$versuffix' + finish_cmds='PATH="\$PATH:/sbin" ldconfig -m $libdir' + shlibpath_var=LD_LIBRARY_PATH + if test -z "`echo __ELF__ | $CC -E - | $GREP __ELF__`" || test "$host_os-$host_cpu" = "openbsd2.8-powerpc"; then + case $host_os in + openbsd2.[89] | openbsd2.[89].*) + shlibpath_overrides_runpath=no + ;; + *) + shlibpath_overrides_runpath=yes + ;; + esac + else + shlibpath_overrides_runpath=yes + fi + ;; + +os2*) + libname_spec='$name' + shrext_cmds=".dll" + need_lib_prefix=no + library_names_spec='$libname${shared_ext} $libname.a' + dynamic_linker='OS/2 ld.exe' + shlibpath_var=LIBPATH + ;; + +osf3* | osf4* | osf5*) + version_type=osf + need_lib_prefix=no + need_version=no + soname_spec='${libname}${release}${shared_ext}$major' + library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}' + shlibpath_var=LD_LIBRARY_PATH + sys_lib_search_path_spec="/usr/shlib /usr/ccs/lib /usr/lib/cmplrs/cc /usr/lib /usr/local/lib /var/shlib" + sys_lib_dlsearch_path_spec="$sys_lib_search_path_spec" + ;; + +rdos*) + dynamic_linker=no + ;; + +solaris*) + version_type=linux # correct to gnu/linux during the next big refactor + need_lib_prefix=no + need_version=no + library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}' + soname_spec='${libname}${release}${shared_ext}$major' + shlibpath_var=LD_LIBRARY_PATH + shlibpath_overrides_runpath=yes + hardcode_into_libs=yes + # ldd complains unless libraries are executable + postinstall_cmds='chmod +x $lib' + ;; + +sunos4*) + version_type=sunos + library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${shared_ext}$versuffix' + finish_cmds='PATH="\$PATH:/usr/etc" ldconfig $libdir' + shlibpath_var=LD_LIBRARY_PATH + shlibpath_overrides_runpath=yes + if test "$with_gnu_ld" = yes; then + need_lib_prefix=no + fi + need_version=yes + ;; + +sysv4 | sysv4.3*) + version_type=linux # correct to gnu/linux during the next big refactor + library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}' + soname_spec='${libname}${release}${shared_ext}$major' + shlibpath_var=LD_LIBRARY_PATH + case $host_vendor in + sni) + shlibpath_overrides_runpath=no + need_lib_prefix=no + runpath_var=LD_RUN_PATH + ;; + siemens) + need_lib_prefix=no + ;; + motorola) + need_lib_prefix=no + need_version=no + shlibpath_overrides_runpath=no + sys_lib_search_path_spec='/lib /usr/lib /usr/ccs/lib' + ;; + esac + ;; + +sysv4*MP*) + if test -d /usr/nec ;then + version_type=linux # correct to gnu/linux during the next big refactor + library_names_spec='$libname${shared_ext}.$versuffix $libname${shared_ext}.$major $libname${shared_ext}' + soname_spec='$libname${shared_ext}.$major' + shlibpath_var=LD_LIBRARY_PATH + fi + ;; + +sysv5* | sco3.2v5* | sco5v6* | unixware* | OpenUNIX* | sysv4*uw2*) + version_type=freebsd-elf + need_lib_prefix=no + need_version=no + library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext} $libname${shared_ext}' + soname_spec='${libname}${release}${shared_ext}$major' + shlibpath_var=LD_LIBRARY_PATH + shlibpath_overrides_runpath=yes + hardcode_into_libs=yes + if test "$with_gnu_ld" = yes; then + sys_lib_search_path_spec='/usr/local/lib /usr/gnu/lib /usr/ccs/lib /usr/lib /lib' + else + sys_lib_search_path_spec='/usr/ccs/lib /usr/lib' + case $host_os in + sco3.2v5*) + sys_lib_search_path_spec="$sys_lib_search_path_spec /lib" + ;; + esac + fi + sys_lib_dlsearch_path_spec='/usr/lib' + ;; + +tpf*) + # TPF is a cross-target only. Preferred cross-host = GNU/Linux. + version_type=linux # correct to gnu/linux during the next big refactor + need_lib_prefix=no + need_version=no + library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}' + shlibpath_var=LD_LIBRARY_PATH + shlibpath_overrides_runpath=no + hardcode_into_libs=yes + ;; + +uts4*) + version_type=linux # correct to gnu/linux during the next big refactor + library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}' + soname_spec='${libname}${release}${shared_ext}$major' + shlibpath_var=LD_LIBRARY_PATH + ;; + +*) + dynamic_linker=no + ;; +esac +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $dynamic_linker" >&5 +$as_echo "$dynamic_linker" >&6; } +test "$dynamic_linker" = no && can_build_shared=no + +variables_saved_for_relink="PATH $shlibpath_var $runpath_var" +if test "$GCC" = yes; then + variables_saved_for_relink="$variables_saved_for_relink GCC_EXEC_PREFIX COMPILER_PATH LIBRARY_PATH" +fi + +if test "${lt_cv_sys_lib_search_path_spec+set}" = set; then + sys_lib_search_path_spec="$lt_cv_sys_lib_search_path_spec" +fi +if test "${lt_cv_sys_lib_dlsearch_path_spec+set}" = set; then + sys_lib_dlsearch_path_spec="$lt_cv_sys_lib_dlsearch_path_spec" +fi + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + { $as_echo "$as_me:${as_lineno-$LINENO}: checking how to hardcode library paths into programs" >&5 +$as_echo_n "checking how to hardcode library paths into programs... " >&6; } +hardcode_action= +if test -n "$hardcode_libdir_flag_spec" || + test -n "$runpath_var" || + test "X$hardcode_automatic" = "Xyes" ; then + + # We can hardcode non-existent directories. + if test "$hardcode_direct" != no && + # If the only mechanism to avoid hardcoding is shlibpath_var, we + # have to relink, otherwise we might link with an installed library + # when we should be linking with a yet-to-be-installed one + ## test "$_LT_TAGVAR(hardcode_shlibpath_var, )" != no && + test "$hardcode_minus_L" != no; then + # Linking always hardcodes the temporary library directory. + hardcode_action=relink + else + # We can link without hardcoding, and we can hardcode nonexisting dirs. + hardcode_action=immediate + fi +else + # We cannot hardcode anything, or else we can only hardcode existing + # directories. + hardcode_action=unsupported +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $hardcode_action" >&5 +$as_echo "$hardcode_action" >&6; } + +if test "$hardcode_action" = relink || + test "$inherit_rpath" = yes; then + # Fast installation is not supported + enable_fast_install=no +elif test "$shlibpath_overrides_runpath" = yes || + test "$enable_shared" = no; then + # Fast installation is not necessary + enable_fast_install=needless +fi + + + + + + + if test "x$enable_dlopen" != xyes; then + enable_dlopen=unknown + enable_dlopen_self=unknown + enable_dlopen_self_static=unknown +else + lt_cv_dlopen=no + lt_cv_dlopen_libs= + + case $host_os in + beos*) + lt_cv_dlopen="load_add_on" + lt_cv_dlopen_libs= + lt_cv_dlopen_self=yes + ;; + + mingw* | pw32* | cegcc*) + lt_cv_dlopen="LoadLibrary" + lt_cv_dlopen_libs= + ;; + + cygwin*) + lt_cv_dlopen="dlopen" + lt_cv_dlopen_libs= + ;; + + darwin*) + # if libdl is installed we need to link against it + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for dlopen in -ldl" >&5 +$as_echo_n "checking for dlopen in -ldl... " >&6; } +if ${ac_cv_lib_dl_dlopen+:} false; then : + $as_echo_n "(cached) " >&6 +else + ac_check_lib_save_LIBS=$LIBS +LIBS="-ldl $LIBS" +cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +/* Override any GCC internal prototype to avoid an error. + Use char because int might match the return type of a GCC + builtin and then its argument prototype would still apply. */ +#ifdef __cplusplus +extern "C" +#endif +char dlopen (); +int +main () +{ +return dlopen (); + ; + return 0; +} +_ACEOF +if ac_fn_c_try_link "$LINENO"; then : + ac_cv_lib_dl_dlopen=yes +else + ac_cv_lib_dl_dlopen=no +fi +rm -f core conftest.err conftest.$ac_objext \ + conftest$ac_exeext conftest.$ac_ext +LIBS=$ac_check_lib_save_LIBS +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_dl_dlopen" >&5 +$as_echo "$ac_cv_lib_dl_dlopen" >&6; } +if test "x$ac_cv_lib_dl_dlopen" = xyes; then : + lt_cv_dlopen="dlopen" lt_cv_dlopen_libs="-ldl" +else + + lt_cv_dlopen="dyld" + lt_cv_dlopen_libs= + lt_cv_dlopen_self=yes + +fi + + ;; + + *) + ac_fn_c_check_func "$LINENO" "shl_load" "ac_cv_func_shl_load" +if test "x$ac_cv_func_shl_load" = xyes; then : + lt_cv_dlopen="shl_load" +else + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for shl_load in -ldld" >&5 +$as_echo_n "checking for shl_load in -ldld... " >&6; } +if ${ac_cv_lib_dld_shl_load+:} false; then : + $as_echo_n "(cached) " >&6 +else + ac_check_lib_save_LIBS=$LIBS +LIBS="-ldld $LIBS" +cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +/* Override any GCC internal prototype to avoid an error. + Use char because int might match the return type of a GCC + builtin and then its argument prototype would still apply. */ +#ifdef __cplusplus +extern "C" +#endif +char shl_load (); +int +main () +{ +return shl_load (); + ; + return 0; +} +_ACEOF +if ac_fn_c_try_link "$LINENO"; then : + ac_cv_lib_dld_shl_load=yes +else + ac_cv_lib_dld_shl_load=no +fi +rm -f core conftest.err conftest.$ac_objext \ + conftest$ac_exeext conftest.$ac_ext +LIBS=$ac_check_lib_save_LIBS +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_dld_shl_load" >&5 +$as_echo "$ac_cv_lib_dld_shl_load" >&6; } +if test "x$ac_cv_lib_dld_shl_load" = xyes; then : + lt_cv_dlopen="shl_load" lt_cv_dlopen_libs="-ldld" +else + ac_fn_c_check_func "$LINENO" "dlopen" "ac_cv_func_dlopen" +if test "x$ac_cv_func_dlopen" = xyes; then : + lt_cv_dlopen="dlopen" +else + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for dlopen in -ldl" >&5 +$as_echo_n "checking for dlopen in -ldl... " >&6; } +if ${ac_cv_lib_dl_dlopen+:} false; then : + $as_echo_n "(cached) " >&6 +else + ac_check_lib_save_LIBS=$LIBS +LIBS="-ldl $LIBS" +cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +/* Override any GCC internal prototype to avoid an error. + Use char because int might match the return type of a GCC + builtin and then its argument prototype would still apply. */ +#ifdef __cplusplus +extern "C" +#endif +char dlopen (); +int +main () +{ +return dlopen (); + ; + return 0; +} +_ACEOF +if ac_fn_c_try_link "$LINENO"; then : + ac_cv_lib_dl_dlopen=yes +else + ac_cv_lib_dl_dlopen=no +fi +rm -f core conftest.err conftest.$ac_objext \ + conftest$ac_exeext conftest.$ac_ext +LIBS=$ac_check_lib_save_LIBS +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_dl_dlopen" >&5 +$as_echo "$ac_cv_lib_dl_dlopen" >&6; } +if test "x$ac_cv_lib_dl_dlopen" = xyes; then : + lt_cv_dlopen="dlopen" lt_cv_dlopen_libs="-ldl" +else + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for dlopen in -lsvld" >&5 +$as_echo_n "checking for dlopen in -lsvld... " >&6; } +if ${ac_cv_lib_svld_dlopen+:} false; then : + $as_echo_n "(cached) " >&6 +else + ac_check_lib_save_LIBS=$LIBS +LIBS="-lsvld $LIBS" +cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +/* Override any GCC internal prototype to avoid an error. + Use char because int might match the return type of a GCC + builtin and then its argument prototype would still apply. */ +#ifdef __cplusplus +extern "C" +#endif +char dlopen (); +int +main () +{ +return dlopen (); + ; + return 0; +} +_ACEOF +if ac_fn_c_try_link "$LINENO"; then : + ac_cv_lib_svld_dlopen=yes +else + ac_cv_lib_svld_dlopen=no +fi +rm -f core conftest.err conftest.$ac_objext \ + conftest$ac_exeext conftest.$ac_ext +LIBS=$ac_check_lib_save_LIBS +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_svld_dlopen" >&5 +$as_echo "$ac_cv_lib_svld_dlopen" >&6; } +if test "x$ac_cv_lib_svld_dlopen" = xyes; then : + lt_cv_dlopen="dlopen" lt_cv_dlopen_libs="-lsvld" +else + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for dld_link in -ldld" >&5 +$as_echo_n "checking for dld_link in -ldld... " >&6; } +if ${ac_cv_lib_dld_dld_link+:} false; then : + $as_echo_n "(cached) " >&6 +else + ac_check_lib_save_LIBS=$LIBS +LIBS="-ldld $LIBS" +cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +/* Override any GCC internal prototype to avoid an error. + Use char because int might match the return type of a GCC + builtin and then its argument prototype would still apply. */ +#ifdef __cplusplus +extern "C" +#endif +char dld_link (); +int +main () +{ +return dld_link (); + ; + return 0; +} +_ACEOF +if ac_fn_c_try_link "$LINENO"; then : + ac_cv_lib_dld_dld_link=yes +else + ac_cv_lib_dld_dld_link=no +fi +rm -f core conftest.err conftest.$ac_objext \ + conftest$ac_exeext conftest.$ac_ext +LIBS=$ac_check_lib_save_LIBS +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_dld_dld_link" >&5 +$as_echo "$ac_cv_lib_dld_dld_link" >&6; } +if test "x$ac_cv_lib_dld_dld_link" = xyes; then : + lt_cv_dlopen="dld_link" lt_cv_dlopen_libs="-ldld" +fi + + +fi + + +fi + + +fi + + +fi + + +fi + + ;; + esac + + if test "x$lt_cv_dlopen" != xno; then + enable_dlopen=yes + else + enable_dlopen=no + fi + + case $lt_cv_dlopen in + dlopen) + save_CPPFLAGS="$CPPFLAGS" + test "x$ac_cv_header_dlfcn_h" = xyes && CPPFLAGS="$CPPFLAGS -DHAVE_DLFCN_H" + + save_LDFLAGS="$LDFLAGS" + wl=$lt_prog_compiler_wl eval LDFLAGS=\"\$LDFLAGS $export_dynamic_flag_spec\" + + save_LIBS="$LIBS" + LIBS="$lt_cv_dlopen_libs $LIBS" + + { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether a program can dlopen itself" >&5 +$as_echo_n "checking whether a program can dlopen itself... " >&6; } +if ${lt_cv_dlopen_self+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test "$cross_compiling" = yes; then : + lt_cv_dlopen_self=cross +else + lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2 + lt_status=$lt_dlunknown + cat > conftest.$ac_ext <<_LT_EOF +#line $LINENO "configure" +#include "confdefs.h" + +#if HAVE_DLFCN_H +#include +#endif + +#include + +#ifdef RTLD_GLOBAL +# define LT_DLGLOBAL RTLD_GLOBAL +#else +# ifdef DL_GLOBAL +# define LT_DLGLOBAL DL_GLOBAL +# else +# define LT_DLGLOBAL 0 +# endif +#endif + +/* We may have to define LT_DLLAZY_OR_NOW in the command line if we + find out it does not work in some platform. */ +#ifndef LT_DLLAZY_OR_NOW +# ifdef RTLD_LAZY +# define LT_DLLAZY_OR_NOW RTLD_LAZY +# else +# ifdef DL_LAZY +# define LT_DLLAZY_OR_NOW DL_LAZY +# else +# ifdef RTLD_NOW +# define LT_DLLAZY_OR_NOW RTLD_NOW +# else +# ifdef DL_NOW +# define LT_DLLAZY_OR_NOW DL_NOW +# else +# define LT_DLLAZY_OR_NOW 0 +# endif +# endif +# endif +# endif +#endif + +/* When -fvisbility=hidden is used, assume the code has been annotated + correspondingly for the symbols needed. */ +#if defined(__GNUC__) && (((__GNUC__ == 3) && (__GNUC_MINOR__ >= 3)) || (__GNUC__ > 3)) +int fnord () __attribute__((visibility("default"))); +#endif + +int fnord () { return 42; } +int main () +{ + void *self = dlopen (0, LT_DLGLOBAL|LT_DLLAZY_OR_NOW); + int status = $lt_dlunknown; + + if (self) + { + if (dlsym (self,"fnord")) status = $lt_dlno_uscore; + else + { + if (dlsym( self,"_fnord")) status = $lt_dlneed_uscore; + else puts (dlerror ()); + } + /* dlclose (self); */ + } + else + puts (dlerror ()); + + return status; +} +_LT_EOF + if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_link\""; } >&5 + (eval $ac_link) 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; } && test -s conftest${ac_exeext} 2>/dev/null; then + (./conftest; exit; ) >&5 2>/dev/null + lt_status=$? + case x$lt_status in + x$lt_dlno_uscore) lt_cv_dlopen_self=yes ;; + x$lt_dlneed_uscore) lt_cv_dlopen_self=yes ;; + x$lt_dlunknown|x*) lt_cv_dlopen_self=no ;; + esac + else : + # compilation failed + lt_cv_dlopen_self=no + fi +fi +rm -fr conftest* + + +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_dlopen_self" >&5 +$as_echo "$lt_cv_dlopen_self" >&6; } + + if test "x$lt_cv_dlopen_self" = xyes; then + wl=$lt_prog_compiler_wl eval LDFLAGS=\"\$LDFLAGS $lt_prog_compiler_static\" + { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether a statically linked program can dlopen itself" >&5 +$as_echo_n "checking whether a statically linked program can dlopen itself... " >&6; } +if ${lt_cv_dlopen_self_static+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test "$cross_compiling" = yes; then : + lt_cv_dlopen_self_static=cross +else + lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2 + lt_status=$lt_dlunknown + cat > conftest.$ac_ext <<_LT_EOF +#line $LINENO "configure" +#include "confdefs.h" + +#if HAVE_DLFCN_H +#include +#endif + +#include + +#ifdef RTLD_GLOBAL +# define LT_DLGLOBAL RTLD_GLOBAL +#else +# ifdef DL_GLOBAL +# define LT_DLGLOBAL DL_GLOBAL +# else +# define LT_DLGLOBAL 0 +# endif +#endif + +/* We may have to define LT_DLLAZY_OR_NOW in the command line if we + find out it does not work in some platform. */ +#ifndef LT_DLLAZY_OR_NOW +# ifdef RTLD_LAZY +# define LT_DLLAZY_OR_NOW RTLD_LAZY +# else +# ifdef DL_LAZY +# define LT_DLLAZY_OR_NOW DL_LAZY +# else +# ifdef RTLD_NOW +# define LT_DLLAZY_OR_NOW RTLD_NOW +# else +# ifdef DL_NOW +# define LT_DLLAZY_OR_NOW DL_NOW +# else +# define LT_DLLAZY_OR_NOW 0 +# endif +# endif +# endif +# endif +#endif + +/* When -fvisbility=hidden is used, assume the code has been annotated + correspondingly for the symbols needed. */ +#if defined(__GNUC__) && (((__GNUC__ == 3) && (__GNUC_MINOR__ >= 3)) || (__GNUC__ > 3)) +int fnord () __attribute__((visibility("default"))); +#endif + +int fnord () { return 42; } +int main () +{ + void *self = dlopen (0, LT_DLGLOBAL|LT_DLLAZY_OR_NOW); + int status = $lt_dlunknown; + + if (self) + { + if (dlsym (self,"fnord")) status = $lt_dlno_uscore; + else + { + if (dlsym( self,"_fnord")) status = $lt_dlneed_uscore; + else puts (dlerror ()); + } + /* dlclose (self); */ + } + else + puts (dlerror ()); + + return status; +} +_LT_EOF + if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_link\""; } >&5 + (eval $ac_link) 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; } && test -s conftest${ac_exeext} 2>/dev/null; then + (./conftest; exit; ) >&5 2>/dev/null + lt_status=$? + case x$lt_status in + x$lt_dlno_uscore) lt_cv_dlopen_self_static=yes ;; + x$lt_dlneed_uscore) lt_cv_dlopen_self_static=yes ;; + x$lt_dlunknown|x*) lt_cv_dlopen_self_static=no ;; + esac + else : + # compilation failed + lt_cv_dlopen_self_static=no + fi +fi +rm -fr conftest* + + +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_dlopen_self_static" >&5 +$as_echo "$lt_cv_dlopen_self_static" >&6; } + fi + + CPPFLAGS="$save_CPPFLAGS" + LDFLAGS="$save_LDFLAGS" + LIBS="$save_LIBS" + ;; + esac + + case $lt_cv_dlopen_self in + yes|no) enable_dlopen_self=$lt_cv_dlopen_self ;; + *) enable_dlopen_self=unknown ;; + esac + + case $lt_cv_dlopen_self_static in + yes|no) enable_dlopen_self_static=$lt_cv_dlopen_self_static ;; + *) enable_dlopen_self_static=unknown ;; + esac +fi + + + + + + + + + + + + + + + + + +striplib= +old_striplib= +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether stripping libraries is possible" >&5 +$as_echo_n "checking whether stripping libraries is possible... " >&6; } +if test -n "$STRIP" && $STRIP -V 2>&1 | $GREP "GNU strip" >/dev/null; then + test -z "$old_striplib" && old_striplib="$STRIP --strip-debug" + test -z "$striplib" && striplib="$STRIP --strip-unneeded" + { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 +$as_echo "yes" >&6; } +else +# FIXME - insert some real tests, host_os isn't really good enough + case $host_os in + darwin*) + if test -n "$STRIP" ; then + striplib="$STRIP -x" + old_striplib="$STRIP -S" + { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 +$as_echo "yes" >&6; } + else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } + fi + ;; + *) + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } + ;; + esac +fi + + + + + + + + + + + + + # Report which library types will actually be built + { $as_echo "$as_me:${as_lineno-$LINENO}: checking if libtool supports shared libraries" >&5 +$as_echo_n "checking if libtool supports shared libraries... " >&6; } + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $can_build_shared" >&5 +$as_echo "$can_build_shared" >&6; } + + { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to build shared libraries" >&5 +$as_echo_n "checking whether to build shared libraries... " >&6; } + test "$can_build_shared" = "no" && enable_shared=no + + # On AIX, shared libraries and static libraries use the same namespace, and + # are all built from PIC. + case $host_os in + aix3*) + test "$enable_shared" = yes && enable_static=no + if test -n "$RANLIB"; then + archive_cmds="$archive_cmds~\$RANLIB \$lib" + postinstall_cmds='$RANLIB $lib' + fi + ;; + + aix[4-9]*) + if test "$host_cpu" != ia64 && test "$aix_use_runtimelinking" = no ; then + test "$enable_shared" = yes && enable_static=no + fi + ;; + esac + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $enable_shared" >&5 +$as_echo "$enable_shared" >&6; } + + { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to build static libraries" >&5 +$as_echo_n "checking whether to build static libraries... " >&6; } + # Make sure either enable_shared or enable_static is yes. + test "$enable_shared" = yes || enable_static=yes + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $enable_static" >&5 +$as_echo "$enable_static" >&6; } + + + + +fi +ac_ext=c +ac_cpp='$CPP $CPPFLAGS' +ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5' +ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' +ac_compiler_gnu=$ac_cv_c_compiler_gnu + +CC="$lt_save_CC" + + + + + + + + + + + + + + + + ac_config_commands="$ac_config_commands libtool" + + + + +# Only expand once: + + + +# Select memory manager depending on user input. +# If no "-enable-maxmem", use jmemnobs +MEMORYMGR='jmemnobs' +MAXMEM="no" +# Check whether --enable-maxmem was given. +if test "${enable_maxmem+set}" = set; then : + enableval=$enable_maxmem; MAXMEM="$enableval" +fi + +if test "x$MAXMEM" = xyes; then + MAXMEM=1 +fi +if test "x$MAXMEM" != xno; then + if test -n "`echo $MAXMEM | sed 's/[0-9]//g'`"; then + as_fn_error $? "non-numeric argument to --enable-maxmem" "$LINENO" 5 + fi + DEFAULTMAXMEM=`expr $MAXMEM \* 1048576` + +cat >>confdefs.h <<_ACEOF +#define DEFAULT_MAX_MEM ${DEFAULTMAXMEM} +_ACEOF + + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for 'tmpfile()'" >&5 +$as_echo_n "checking for 'tmpfile()'... " >&6; } + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#include +int +main () +{ + FILE * tfile = tmpfile(); + ; + return 0; +} +_ACEOF +if ac_fn_c_try_link "$LINENO"; then : + { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 +$as_echo "yes" >&6; } + MEMORYMGR='jmemansi' +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } + MEMORYMGR='jmemname' + + # Test for the need to remove temporary files using a signal handler + # (for cjpeg/djpeg) + +$as_echo "#define NEED_SIGNAL_CATCHER 1" >>confdefs.h + + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for 'mktemp()'" >&5 +$as_echo_n "checking for 'mktemp()'... " >&6; } + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +int +main () +{ + char fname[80]; mktemp(fname); + ; + return 0; +} +_ACEOF +if ac_fn_c_try_link "$LINENO"; then : + { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 +$as_echo "yes" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } + +$as_echo "#define NO_MKTEMP 1" >>confdefs.h + +fi +rm -f core conftest.err conftest.$ac_objext \ + conftest$ac_exeext conftest.$ac_ext +fi +rm -f core conftest.err conftest.$ac_objext \ + conftest$ac_exeext conftest.$ac_ext +fi + + +# Extract the library version IDs from jpeglib.h. +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking libjpeg version number" >&5 +$as_echo_n "checking libjpeg version number... " >&6; } +major=`sed -ne 's/^#define JPEG_LIB_VERSION_MAJOR *\([0-9][0-9]*\).*$/\1/p' $srcdir/jpeglib.h` +minor=`sed -ne 's/^#define JPEG_LIB_VERSION_MINOR *\([0-9][0-9]*\).*$/\1/p' $srcdir/jpeglib.h` +JPEG_LIB_VERSION=`expr $major + $minor`:0:$minor + +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $JPEG_LIB_VERSION" >&5 +$as_echo "$JPEG_LIB_VERSION" >&6; } + +ac_config_files="$ac_config_files Makefile" + +cat >confcache <<\_ACEOF +# This file is a shell script that caches the results of configure +# tests run on this system so they can be shared between configure +# scripts and configure runs, see configure's option --config-cache. +# It is not useful on other systems. If it contains results you don't +# want to keep, you may remove or edit it. +# +# config.status only pays attention to the cache file if you give it +# the --recheck option to rerun configure. +# +# `ac_cv_env_foo' variables (set or unset) will be overridden when +# loading this file, other *unset* `ac_cv_foo' will be assigned the +# following values. + +_ACEOF + +# The following way of writing the cache mishandles newlines in values, +# but we know of no workaround that is simple, portable, and efficient. +# So, we kill variables containing newlines. +# Ultrix sh set writes to stderr and can't be redirected directly, +# and sets the high bit in the cache file unless we assign to the vars. +( + for ac_var in `(set) 2>&1 | sed -n 's/^\([a-zA-Z_][a-zA-Z0-9_]*\)=.*/\1/p'`; do + eval ac_val=\$$ac_var + case $ac_val in #( + *${as_nl}*) + case $ac_var in #( + *_cv_*) { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: cache variable $ac_var contains a newline" >&5 +$as_echo "$as_me: WARNING: cache variable $ac_var contains a newline" >&2;} ;; + esac + case $ac_var in #( + _ | IFS | as_nl) ;; #( + BASH_ARGV | BASH_SOURCE) eval $ac_var= ;; #( + *) { eval $ac_var=; unset $ac_var;} ;; + esac ;; + esac + done + + (set) 2>&1 | + case $as_nl`(ac_space=' '; set) 2>&1` in #( + *${as_nl}ac_space=\ *) + # `set' does not quote correctly, so add quotes: double-quote + # substitution turns \\\\ into \\, and sed turns \\ into \. + sed -n \ + "s/'/'\\\\''/g; + s/^\\([_$as_cr_alnum]*_cv_[_$as_cr_alnum]*\\)=\\(.*\\)/\\1='\\2'/p" + ;; #( + *) + # `set' quotes correctly as required by POSIX, so do not add quotes. + sed -n "/^[_$as_cr_alnum]*_cv_[_$as_cr_alnum]*=/p" + ;; + esac | + sort +) | + sed ' + /^ac_cv_env_/b end + t clear + :clear + s/^\([^=]*\)=\(.*[{}].*\)$/test "${\1+set}" = set || &/ + t end + s/^\([^=]*\)=\(.*\)$/\1=${\1=\2}/ + :end' >>confcache +if diff "$cache_file" confcache >/dev/null 2>&1; then :; else + if test -w "$cache_file"; then + if test "x$cache_file" != "x/dev/null"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: updating cache $cache_file" >&5 +$as_echo "$as_me: updating cache $cache_file" >&6;} + if test ! -f "$cache_file" || test -h "$cache_file"; then + cat confcache >"$cache_file" + else + case $cache_file in #( + */* | ?:*) + mv -f confcache "$cache_file"$$ && + mv -f "$cache_file"$$ "$cache_file" ;; #( + *) + mv -f confcache "$cache_file" ;; + esac + fi + fi + else + { $as_echo "$as_me:${as_lineno-$LINENO}: not updating unwritable cache $cache_file" >&5 +$as_echo "$as_me: not updating unwritable cache $cache_file" >&6;} + fi +fi +rm -f confcache + +test "x$prefix" = xNONE && prefix=$ac_default_prefix +# Let make expand exec_prefix. +test "x$exec_prefix" = xNONE && exec_prefix='${prefix}' + +DEFS=-DHAVE_CONFIG_H + +ac_libobjs= +ac_ltlibobjs= +for ac_i in : $LIBOBJS; do test "x$ac_i" = x: && continue + # 1. Remove the extension, and $U if already installed. + ac_script='s/\$U\././;s/\.o$//;s/\.obj$//' + ac_i=`$as_echo "$ac_i" | sed "$ac_script"` + # 2. Prepend LIBOBJDIR. When used with automake>=1.10 LIBOBJDIR + # will be set to the directory where LIBOBJS objects are built. + as_fn_append ac_libobjs " \${LIBOBJDIR}$ac_i\$U.$ac_objext" + as_fn_append ac_ltlibobjs " \${LIBOBJDIR}$ac_i"'$U.lo' +done +LIBOBJS=$ac_libobjs + +LTLIBOBJS=$ac_ltlibobjs + + + if test -n "$EXEEXT"; then + am__EXEEXT_TRUE= + am__EXEEXT_FALSE='#' +else + am__EXEEXT_TRUE='#' + am__EXEEXT_FALSE= +fi + +if test -z "${AMDEP_TRUE}" && test -z "${AMDEP_FALSE}"; then + as_fn_error $? "conditional \"AMDEP\" was never defined. +Usually this means the macro was only invoked conditionally." "$LINENO" 5 +fi +if test -z "${am__fastdepCC_TRUE}" && test -z "${am__fastdepCC_FALSE}"; then + as_fn_error $? "conditional \"am__fastdepCC\" was never defined. +Usually this means the macro was only invoked conditionally." "$LINENO" 5 +fi +if test -z "${MAINTAINER_MODE_TRUE}" && test -z "${MAINTAINER_MODE_FALSE}"; then + as_fn_error $? "conditional \"MAINTAINER_MODE\" was never defined. +Usually this means the macro was only invoked conditionally." "$LINENO" 5 +fi +if test -z "${am__fastdepCC_TRUE}" && test -z "${am__fastdepCC_FALSE}"; then + as_fn_error $? "conditional \"am__fastdepCC\" was never defined. +Usually this means the macro was only invoked conditionally." "$LINENO" 5 +fi +if test -z "${HAVE_LD_VERSION_SCRIPT_TRUE}" && test -z "${HAVE_LD_VERSION_SCRIPT_FALSE}"; then + as_fn_error $? "conditional \"HAVE_LD_VERSION_SCRIPT\" was never defined. +Usually this means the macro was only invoked conditionally." "$LINENO" 5 +fi + +: "${CONFIG_STATUS=./config.status}" +ac_write_fail=0 +ac_clean_files_save=$ac_clean_files +ac_clean_files="$ac_clean_files $CONFIG_STATUS" +{ $as_echo "$as_me:${as_lineno-$LINENO}: creating $CONFIG_STATUS" >&5 +$as_echo "$as_me: creating $CONFIG_STATUS" >&6;} +as_write_fail=0 +cat >$CONFIG_STATUS <<_ASEOF || as_write_fail=1 +#! $SHELL +# Generated by $as_me. +# Run this file to recreate the current configuration. +# Compiler output produced by configure, useful for debugging +# configure, is in config.log if it exists. + +debug=false +ac_cs_recheck=false +ac_cs_silent=false + +SHELL=\${CONFIG_SHELL-$SHELL} +export SHELL +_ASEOF +cat >>$CONFIG_STATUS <<\_ASEOF || as_write_fail=1 +## -------------------- ## +## M4sh Initialization. ## +## -------------------- ## + +# Be more Bourne compatible +DUALCASE=1; export DUALCASE # for MKS sh +if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then : + emulate sh + NULLCMD=: + # Pre-4.2 versions of Zsh do word splitting on ${1+"$@"}, which + # is contrary to our usage. Disable this feature. + alias -g '${1+"$@"}'='"$@"' + setopt NO_GLOB_SUBST +else + case `(set -o) 2>/dev/null` in #( + *posix*) : + set -o posix ;; #( + *) : + ;; +esac +fi + + +as_nl=' +' +export as_nl +# Printing a long string crashes Solaris 7 /usr/bin/printf. +as_echo='\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\' +as_echo=$as_echo$as_echo$as_echo$as_echo$as_echo +as_echo=$as_echo$as_echo$as_echo$as_echo$as_echo$as_echo +# Prefer a ksh shell builtin over an external printf program on Solaris, +# but without wasting forks for bash or zsh. +if test -z "$BASH_VERSION$ZSH_VERSION" \ + && (test "X`print -r -- $as_echo`" = "X$as_echo") 2>/dev/null; then + as_echo='print -r --' + as_echo_n='print -rn --' +elif (test "X`printf %s $as_echo`" = "X$as_echo") 2>/dev/null; then + as_echo='printf %s\n' + as_echo_n='printf %s' +else + if test "X`(/usr/ucb/echo -n -n $as_echo) 2>/dev/null`" = "X-n $as_echo"; then + as_echo_body='eval /usr/ucb/echo -n "$1$as_nl"' + as_echo_n='/usr/ucb/echo -n' + else + as_echo_body='eval expr "X$1" : "X\\(.*\\)"' + as_echo_n_body='eval + arg=$1; + case $arg in #( + *"$as_nl"*) + expr "X$arg" : "X\\(.*\\)$as_nl"; + arg=`expr "X$arg" : ".*$as_nl\\(.*\\)"`;; + esac; + expr "X$arg" : "X\\(.*\\)" | tr -d "$as_nl" + ' + export as_echo_n_body + as_echo_n='sh -c $as_echo_n_body as_echo' + fi + export as_echo_body + as_echo='sh -c $as_echo_body as_echo' +fi + +# The user is always right. +if test "${PATH_SEPARATOR+set}" != set; then + PATH_SEPARATOR=: + (PATH='/bin;/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 && { + (PATH='/bin:/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 || + PATH_SEPARATOR=';' + } +fi + + +# IFS +# We need space, tab and new line, in precisely that order. Quoting is +# there to prevent editors from complaining about space-tab. +# (If _AS_PATH_WALK were called with IFS unset, it would disable word +# splitting by setting IFS to empty value.) +IFS=" "" $as_nl" + +# Find who we are. Look in the path if we contain no directory separator. +as_myself= +case $0 in #(( + *[\\/]* ) as_myself=$0 ;; + *) as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + test -r "$as_dir/$0" && as_myself=$as_dir/$0 && break + done +IFS=$as_save_IFS + + ;; +esac +# We did not find ourselves, most probably we were run as `sh COMMAND' +# in which case we are not to be found in the path. +if test "x$as_myself" = x; then + as_myself=$0 +fi +if test ! -f "$as_myself"; then + $as_echo "$as_myself: error: cannot find myself; rerun with an absolute file name" >&2 + exit 1 +fi + +# Unset variables that we do not need and which cause bugs (e.g. in +# pre-3.0 UWIN ksh). But do not cause bugs in bash 2.01; the "|| exit 1" +# suppresses any "Segmentation fault" message there. '((' could +# trigger a bug in pdksh 5.2.14. +for as_var in BASH_ENV ENV MAIL MAILPATH +do eval test x\${$as_var+set} = xset \ + && ( (unset $as_var) || exit 1) >/dev/null 2>&1 && unset $as_var || : +done +PS1='$ ' +PS2='> ' +PS4='+ ' + +# NLS nuisances. +LC_ALL=C +export LC_ALL +LANGUAGE=C +export LANGUAGE + +# CDPATH. +(unset CDPATH) >/dev/null 2>&1 && unset CDPATH + + +# as_fn_error STATUS ERROR [LINENO LOG_FD] +# ---------------------------------------- +# Output "`basename $0`: error: ERROR" to stderr. If LINENO and LOG_FD are +# provided, also output the error to LOG_FD, referencing LINENO. Then exit the +# script with STATUS, using 1 if that was 0. +as_fn_error () +{ + as_status=$1; test $as_status -eq 0 && as_status=1 + if test "$4"; then + as_lineno=${as_lineno-"$3"} as_lineno_stack=as_lineno_stack=$as_lineno_stack + $as_echo "$as_me:${as_lineno-$LINENO}: error: $2" >&$4 + fi + $as_echo "$as_me: error: $2" >&2 + as_fn_exit $as_status +} # as_fn_error + + +# as_fn_set_status STATUS +# ----------------------- +# Set $? to STATUS, without forking. +as_fn_set_status () +{ + return $1 +} # as_fn_set_status + +# as_fn_exit STATUS +# ----------------- +# Exit the shell with STATUS, even in a "trap 0" or "set -e" context. +as_fn_exit () +{ + set +e + as_fn_set_status $1 + exit $1 +} # as_fn_exit + +# as_fn_unset VAR +# --------------- +# Portably unset VAR. +as_fn_unset () +{ + { eval $1=; unset $1;} +} +as_unset=as_fn_unset +# as_fn_append VAR VALUE +# ---------------------- +# Append the text in VALUE to the end of the definition contained in VAR. Take +# advantage of any shell optimizations that allow amortized linear growth over +# repeated appends, instead of the typical quadratic growth present in naive +# implementations. +if (eval "as_var=1; as_var+=2; test x\$as_var = x12") 2>/dev/null; then : + eval 'as_fn_append () + { + eval $1+=\$2 + }' +else + as_fn_append () + { + eval $1=\$$1\$2 + } +fi # as_fn_append + +# as_fn_arith ARG... +# ------------------ +# Perform arithmetic evaluation on the ARGs, and store the result in the +# global $as_val. Take advantage of shells that can avoid forks. The arguments +# must be portable across $(()) and expr. +if (eval "test \$(( 1 + 1 )) = 2") 2>/dev/null; then : + eval 'as_fn_arith () + { + as_val=$(( $* )) + }' +else + as_fn_arith () + { + as_val=`expr "$@" || test $? -eq 1` + } +fi # as_fn_arith + + +if expr a : '\(a\)' >/dev/null 2>&1 && + test "X`expr 00001 : '.*\(...\)'`" = X001; then + as_expr=expr +else + as_expr=false +fi + +if (basename -- /) >/dev/null 2>&1 && test "X`basename -- / 2>&1`" = "X/"; then + as_basename=basename +else + as_basename=false +fi + +if (as_dir=`dirname -- /` && test "X$as_dir" = X/) >/dev/null 2>&1; then + as_dirname=dirname +else + as_dirname=false +fi + +as_me=`$as_basename -- "$0" || +$as_expr X/"$0" : '.*/\([^/][^/]*\)/*$' \| \ + X"$0" : 'X\(//\)$' \| \ + X"$0" : 'X\(/\)' \| . 2>/dev/null || +$as_echo X/"$0" | + sed '/^.*\/\([^/][^/]*\)\/*$/{ + s//\1/ + q + } + /^X\/\(\/\/\)$/{ + s//\1/ + q + } + /^X\/\(\/\).*/{ + s//\1/ + q + } + s/.*/./; q'` + +# Avoid depending upon Character Ranges. +as_cr_letters='abcdefghijklmnopqrstuvwxyz' +as_cr_LETTERS='ABCDEFGHIJKLMNOPQRSTUVWXYZ' +as_cr_Letters=$as_cr_letters$as_cr_LETTERS +as_cr_digits='0123456789' +as_cr_alnum=$as_cr_Letters$as_cr_digits + +ECHO_C= ECHO_N= ECHO_T= +case `echo -n x` in #((((( +-n*) + case `echo 'xy\c'` in + *c*) ECHO_T=' ';; # ECHO_T is single tab character. + xy) ECHO_C='\c';; + *) echo `echo ksh88 bug on AIX 6.1` > /dev/null + ECHO_T=' ';; + esac;; +*) + ECHO_N='-n';; +esac + +rm -f conf$$ conf$$.exe conf$$.file +if test -d conf$$.dir; then + rm -f conf$$.dir/conf$$.file +else + rm -f conf$$.dir + mkdir conf$$.dir 2>/dev/null +fi +if (echo >conf$$.file) 2>/dev/null; then + if ln -s conf$$.file conf$$ 2>/dev/null; then + as_ln_s='ln -s' + # ... but there are two gotchas: + # 1) On MSYS, both `ln -s file dir' and `ln file dir' fail. + # 2) DJGPP < 2.04 has no symlinks; `ln -s' creates a wrapper executable. + # In both cases, we have to default to `cp -p'. + ln -s conf$$.file conf$$.dir 2>/dev/null && test ! -f conf$$.exe || + as_ln_s='cp -p' + elif ln conf$$.file conf$$ 2>/dev/null; then + as_ln_s=ln + else + as_ln_s='cp -p' + fi +else + as_ln_s='cp -p' +fi +rm -f conf$$ conf$$.exe conf$$.dir/conf$$.file conf$$.file +rmdir conf$$.dir 2>/dev/null + + +# as_fn_mkdir_p +# ------------- +# Create "$as_dir" as a directory, including parents if necessary. +as_fn_mkdir_p () +{ + + case $as_dir in #( + -*) as_dir=./$as_dir;; + esac + test -d "$as_dir" || eval $as_mkdir_p || { + as_dirs= + while :; do + case $as_dir in #( + *\'*) as_qdir=`$as_echo "$as_dir" | sed "s/'/'\\\\\\\\''/g"`;; #'( + *) as_qdir=$as_dir;; + esac + as_dirs="'$as_qdir' $as_dirs" + as_dir=`$as_dirname -- "$as_dir" || +$as_expr X"$as_dir" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \ + X"$as_dir" : 'X\(//\)[^/]' \| \ + X"$as_dir" : 'X\(//\)$' \| \ + X"$as_dir" : 'X\(/\)' \| . 2>/dev/null || +$as_echo X"$as_dir" | + sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{ + s//\1/ + q + } + /^X\(\/\/\)[^/].*/{ + s//\1/ + q + } + /^X\(\/\/\)$/{ + s//\1/ + q + } + /^X\(\/\).*/{ + s//\1/ + q + } + s/.*/./; q'` + test -d "$as_dir" && break + done + test -z "$as_dirs" || eval "mkdir $as_dirs" + } || test -d "$as_dir" || as_fn_error $? "cannot create directory $as_dir" + + +} # as_fn_mkdir_p +if mkdir -p . 2>/dev/null; then + as_mkdir_p='mkdir -p "$as_dir"' +else + test -d ./-p && rmdir ./-p + as_mkdir_p=false +fi + +if test -x / >/dev/null 2>&1; then + as_test_x='test -x' +else + if ls -dL / >/dev/null 2>&1; then + as_ls_L_option=L + else + as_ls_L_option= + fi + as_test_x=' + eval sh -c '\'' + if test -d "$1"; then + test -d "$1/."; + else + case $1 in #( + -*)set "./$1";; + esac; + case `ls -ld'$as_ls_L_option' "$1" 2>/dev/null` in #(( + ???[sx]*):;;*)false;;esac;fi + '\'' sh + ' +fi +as_executable_p=$as_test_x + +# Sed expression to map a string onto a valid CPP name. +as_tr_cpp="eval sed 'y%*$as_cr_letters%P$as_cr_LETTERS%;s%[^_$as_cr_alnum]%_%g'" + +# Sed expression to map a string onto a valid variable name. +as_tr_sh="eval sed 'y%*+%pp%;s%[^_$as_cr_alnum]%_%g'" + + +exec 6>&1 +## ----------------------------------- ## +## Main body of $CONFIG_STATUS script. ## +## ----------------------------------- ## +_ASEOF +test $as_write_fail = 0 && chmod +x $CONFIG_STATUS || ac_write_fail=1 + +cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1 +# Save the log message, to keep $0 and so on meaningful, and to +# report actual input values of CONFIG_FILES etc. instead of their +# values after options handling. +ac_log=" +This file was extended by libjpeg $as_me 8.4.0, which was +generated by GNU Autoconf 2.68. Invocation command line was + + CONFIG_FILES = $CONFIG_FILES + CONFIG_HEADERS = $CONFIG_HEADERS + CONFIG_LINKS = $CONFIG_LINKS + CONFIG_COMMANDS = $CONFIG_COMMANDS + $ $0 $@ + +on `(hostname || uname -n) 2>/dev/null | sed 1q` +" + +_ACEOF + +case $ac_config_files in *" +"*) set x $ac_config_files; shift; ac_config_files=$*;; +esac + +case $ac_config_headers in *" +"*) set x $ac_config_headers; shift; ac_config_headers=$*;; +esac + + +cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1 +# Files that config.status was made for. +config_files="$ac_config_files" +config_headers="$ac_config_headers" +config_commands="$ac_config_commands" + +_ACEOF + +cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1 +ac_cs_usage="\ +\`$as_me' instantiates files and other configuration actions +from templates according to the current configuration. Unless the files +and actions are specified as TAGs, all are instantiated by default. + +Usage: $0 [OPTION]... [TAG]... + + -h, --help print this help, then exit + -V, --version print version number and configuration settings, then exit + --config print configuration, then exit + -q, --quiet, --silent + do not print progress messages + -d, --debug don't remove temporary files + --recheck update $as_me by reconfiguring in the same conditions + --file=FILE[:TEMPLATE] + instantiate the configuration file FILE + --header=FILE[:TEMPLATE] + instantiate the configuration header FILE + +Configuration files: +$config_files + +Configuration headers: +$config_headers + +Configuration commands: +$config_commands + +Report bugs to the package provider." + +_ACEOF +cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1 +ac_cs_config="`$as_echo "$ac_configure_args" | sed 's/^ //; s/[\\""\`\$]/\\\\&/g'`" +ac_cs_version="\\ +libjpeg config.status 8.4.0 +configured by $0, generated by GNU Autoconf 2.68, + with options \\"\$ac_cs_config\\" + +Copyright (C) 2010 Free Software Foundation, Inc. +This config.status script is free software; the Free Software Foundation +gives unlimited permission to copy, distribute and modify it." + +ac_pwd='$ac_pwd' +srcdir='$srcdir' +INSTALL='$INSTALL' +MKDIR_P='$MKDIR_P' +AWK='$AWK' +test -n "\$AWK" || AWK=awk +_ACEOF + +cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1 +# The default lists apply if the user does not specify any file. +ac_need_defaults=: +while test $# != 0 +do + case $1 in + --*=?*) + ac_option=`expr "X$1" : 'X\([^=]*\)='` + ac_optarg=`expr "X$1" : 'X[^=]*=\(.*\)'` + ac_shift=: + ;; + --*=) + ac_option=`expr "X$1" : 'X\([^=]*\)='` + ac_optarg= + ac_shift=: + ;; + *) + ac_option=$1 + ac_optarg=$2 + ac_shift=shift + ;; + esac + + case $ac_option in + # Handling of the options. + -recheck | --recheck | --rechec | --reche | --rech | --rec | --re | --r) + ac_cs_recheck=: ;; + --version | --versio | --versi | --vers | --ver | --ve | --v | -V ) + $as_echo "$ac_cs_version"; exit ;; + --config | --confi | --conf | --con | --co | --c ) + $as_echo "$ac_cs_config"; exit ;; + --debug | --debu | --deb | --de | --d | -d ) + debug=: ;; + --file | --fil | --fi | --f ) + $ac_shift + case $ac_optarg in + *\'*) ac_optarg=`$as_echo "$ac_optarg" | sed "s/'/'\\\\\\\\''/g"` ;; + '') as_fn_error $? "missing file argument" ;; + esac + as_fn_append CONFIG_FILES " '$ac_optarg'" + ac_need_defaults=false;; + --header | --heade | --head | --hea ) + $ac_shift + case $ac_optarg in + *\'*) ac_optarg=`$as_echo "$ac_optarg" | sed "s/'/'\\\\\\\\''/g"` ;; + esac + as_fn_append CONFIG_HEADERS " '$ac_optarg'" + ac_need_defaults=false;; + --he | --h) + # Conflict between --help and --header + as_fn_error $? "ambiguous option: \`$1' +Try \`$0 --help' for more information.";; + --help | --hel | -h ) + $as_echo "$ac_cs_usage"; exit ;; + -q | -quiet | --quiet | --quie | --qui | --qu | --q \ + | -silent | --silent | --silen | --sile | --sil | --si | --s) + ac_cs_silent=: ;; + + # This is an error. + -*) as_fn_error $? "unrecognized option: \`$1' +Try \`$0 --help' for more information." ;; + + *) as_fn_append ac_config_targets " $1" + ac_need_defaults=false ;; + + esac + shift +done + +ac_configure_extra_args= + +if $ac_cs_silent; then + exec 6>/dev/null + ac_configure_extra_args="$ac_configure_extra_args --silent" +fi + +_ACEOF +cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1 +if \$ac_cs_recheck; then + set X '$SHELL' '$0' $ac_configure_args \$ac_configure_extra_args --no-create --no-recursion + shift + \$as_echo "running CONFIG_SHELL=$SHELL \$*" >&6 + CONFIG_SHELL='$SHELL' + export CONFIG_SHELL + exec "\$@" +fi + +_ACEOF +cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1 +exec 5>>config.log +{ + echo + sed 'h;s/./-/g;s/^.../## /;s/...$/ ##/;p;x;p;x' <<_ASBOX +## Running $as_me. ## +_ASBOX + $as_echo "$ac_log" +} >&5 + +_ACEOF +cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1 +# +# INIT-COMMANDS +# +AMDEP_TRUE="$AMDEP_TRUE" ac_aux_dir="$ac_aux_dir" + + +# The HP-UX ksh and POSIX shell print the target directory to stdout +# if CDPATH is set. +(unset CDPATH) >/dev/null 2>&1 && unset CDPATH + +sed_quote_subst='$sed_quote_subst' +double_quote_subst='$double_quote_subst' +delay_variable_subst='$delay_variable_subst' +AS='`$ECHO "$AS" | $SED "$delay_single_quote_subst"`' +DLLTOOL='`$ECHO "$DLLTOOL" | $SED "$delay_single_quote_subst"`' +OBJDUMP='`$ECHO "$OBJDUMP" | $SED "$delay_single_quote_subst"`' +macro_version='`$ECHO "$macro_version" | $SED "$delay_single_quote_subst"`' +macro_revision='`$ECHO "$macro_revision" | $SED "$delay_single_quote_subst"`' +enable_shared='`$ECHO "$enable_shared" | $SED "$delay_single_quote_subst"`' +enable_static='`$ECHO "$enable_static" | $SED "$delay_single_quote_subst"`' +pic_mode='`$ECHO "$pic_mode" | $SED "$delay_single_quote_subst"`' +enable_fast_install='`$ECHO "$enable_fast_install" | $SED "$delay_single_quote_subst"`' +SHELL='`$ECHO "$SHELL" | $SED "$delay_single_quote_subst"`' +ECHO='`$ECHO "$ECHO" | $SED "$delay_single_quote_subst"`' +PATH_SEPARATOR='`$ECHO "$PATH_SEPARATOR" | $SED "$delay_single_quote_subst"`' +host_alias='`$ECHO "$host_alias" | $SED "$delay_single_quote_subst"`' +host='`$ECHO "$host" | $SED "$delay_single_quote_subst"`' +host_os='`$ECHO "$host_os" | $SED "$delay_single_quote_subst"`' +build_alias='`$ECHO "$build_alias" | $SED "$delay_single_quote_subst"`' +build='`$ECHO "$build" | $SED "$delay_single_quote_subst"`' +build_os='`$ECHO "$build_os" | $SED "$delay_single_quote_subst"`' +SED='`$ECHO "$SED" | $SED "$delay_single_quote_subst"`' +Xsed='`$ECHO "$Xsed" | $SED "$delay_single_quote_subst"`' +GREP='`$ECHO "$GREP" | $SED "$delay_single_quote_subst"`' +EGREP='`$ECHO "$EGREP" | $SED "$delay_single_quote_subst"`' +FGREP='`$ECHO "$FGREP" | $SED "$delay_single_quote_subst"`' +LD='`$ECHO "$LD" | $SED "$delay_single_quote_subst"`' +NM='`$ECHO "$NM" | $SED "$delay_single_quote_subst"`' +LN_S='`$ECHO "$LN_S" | $SED "$delay_single_quote_subst"`' +max_cmd_len='`$ECHO "$max_cmd_len" | $SED 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"$delay_single_quote_subst"`' +sharedlib_from_linklib_cmd='`$ECHO "$sharedlib_from_linklib_cmd" | $SED "$delay_single_quote_subst"`' +AR='`$ECHO "$AR" | $SED "$delay_single_quote_subst"`' +AR_FLAGS='`$ECHO "$AR_FLAGS" | $SED "$delay_single_quote_subst"`' +archiver_list_spec='`$ECHO "$archiver_list_spec" | $SED "$delay_single_quote_subst"`' +STRIP='`$ECHO "$STRIP" | $SED "$delay_single_quote_subst"`' +RANLIB='`$ECHO "$RANLIB" | $SED "$delay_single_quote_subst"`' +old_postinstall_cmds='`$ECHO "$old_postinstall_cmds" | $SED "$delay_single_quote_subst"`' +old_postuninstall_cmds='`$ECHO "$old_postuninstall_cmds" | $SED "$delay_single_quote_subst"`' +old_archive_cmds='`$ECHO "$old_archive_cmds" | $SED "$delay_single_quote_subst"`' +lock_old_archive_extraction='`$ECHO "$lock_old_archive_extraction" | $SED "$delay_single_quote_subst"`' +CC='`$ECHO "$CC" | $SED "$delay_single_quote_subst"`' +CFLAGS='`$ECHO "$CFLAGS" | $SED "$delay_single_quote_subst"`' +compiler='`$ECHO "$compiler" | $SED 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+lt_prog_compiler_pic='`$ECHO "$lt_prog_compiler_pic" | $SED "$delay_single_quote_subst"`' +lt_prog_compiler_wl='`$ECHO "$lt_prog_compiler_wl" | $SED "$delay_single_quote_subst"`' +lt_prog_compiler_static='`$ECHO "$lt_prog_compiler_static" | $SED "$delay_single_quote_subst"`' +lt_cv_prog_compiler_c_o='`$ECHO "$lt_cv_prog_compiler_c_o" | $SED "$delay_single_quote_subst"`' +need_locks='`$ECHO "$need_locks" | $SED "$delay_single_quote_subst"`' +MANIFEST_TOOL='`$ECHO "$MANIFEST_TOOL" | $SED "$delay_single_quote_subst"`' +DSYMUTIL='`$ECHO "$DSYMUTIL" | $SED "$delay_single_quote_subst"`' +NMEDIT='`$ECHO "$NMEDIT" | $SED "$delay_single_quote_subst"`' +LIPO='`$ECHO "$LIPO" | $SED "$delay_single_quote_subst"`' +OTOOL='`$ECHO "$OTOOL" | $SED "$delay_single_quote_subst"`' +OTOOL64='`$ECHO "$OTOOL64" | $SED "$delay_single_quote_subst"`' +libext='`$ECHO "$libext" | $SED "$delay_single_quote_subst"`' +shrext_cmds='`$ECHO "$shrext_cmds" | $SED "$delay_single_quote_subst"`' +extract_expsyms_cmds='`$ECHO "$extract_expsyms_cmds" | $SED "$delay_single_quote_subst"`' +archive_cmds_need_lc='`$ECHO "$archive_cmds_need_lc" | $SED "$delay_single_quote_subst"`' +enable_shared_with_static_runtimes='`$ECHO "$enable_shared_with_static_runtimes" | $SED "$delay_single_quote_subst"`' +export_dynamic_flag_spec='`$ECHO "$export_dynamic_flag_spec" | $SED "$delay_single_quote_subst"`' +whole_archive_flag_spec='`$ECHO "$whole_archive_flag_spec" | $SED "$delay_single_quote_subst"`' +compiler_needs_object='`$ECHO "$compiler_needs_object" | $SED "$delay_single_quote_subst"`' +old_archive_from_new_cmds='`$ECHO "$old_archive_from_new_cmds" | $SED "$delay_single_quote_subst"`' +old_archive_from_expsyms_cmds='`$ECHO "$old_archive_from_expsyms_cmds" | $SED "$delay_single_quote_subst"`' +archive_cmds='`$ECHO "$archive_cmds" | $SED "$delay_single_quote_subst"`' +archive_expsym_cmds='`$ECHO "$archive_expsym_cmds" | $SED "$delay_single_quote_subst"`' +module_cmds='`$ECHO "$module_cmds" | $SED "$delay_single_quote_subst"`' +module_expsym_cmds='`$ECHO "$module_expsym_cmds" | $SED "$delay_single_quote_subst"`' +with_gnu_ld='`$ECHO "$with_gnu_ld" | $SED "$delay_single_quote_subst"`' +allow_undefined_flag='`$ECHO "$allow_undefined_flag" | $SED "$delay_single_quote_subst"`' +no_undefined_flag='`$ECHO "$no_undefined_flag" | $SED "$delay_single_quote_subst"`' +hardcode_libdir_flag_spec='`$ECHO "$hardcode_libdir_flag_spec" | $SED "$delay_single_quote_subst"`' +hardcode_libdir_separator='`$ECHO "$hardcode_libdir_separator" | $SED "$delay_single_quote_subst"`' +hardcode_direct='`$ECHO "$hardcode_direct" | $SED "$delay_single_quote_subst"`' +hardcode_direct_absolute='`$ECHO "$hardcode_direct_absolute" | $SED "$delay_single_quote_subst"`' +hardcode_minus_L='`$ECHO "$hardcode_minus_L" | $SED "$delay_single_quote_subst"`' +hardcode_shlibpath_var='`$ECHO "$hardcode_shlibpath_var" | $SED "$delay_single_quote_subst"`' +hardcode_automatic='`$ECHO "$hardcode_automatic" | $SED "$delay_single_quote_subst"`' +inherit_rpath='`$ECHO "$inherit_rpath" | $SED "$delay_single_quote_subst"`' +link_all_deplibs='`$ECHO "$link_all_deplibs" | $SED "$delay_single_quote_subst"`' +always_export_symbols='`$ECHO "$always_export_symbols" | $SED "$delay_single_quote_subst"`' +export_symbols_cmds='`$ECHO "$export_symbols_cmds" | $SED "$delay_single_quote_subst"`' +exclude_expsyms='`$ECHO "$exclude_expsyms" | $SED "$delay_single_quote_subst"`' +include_expsyms='`$ECHO "$include_expsyms" | $SED "$delay_single_quote_subst"`' +prelink_cmds='`$ECHO "$prelink_cmds" | $SED "$delay_single_quote_subst"`' +postlink_cmds='`$ECHO "$postlink_cmds" | $SED "$delay_single_quote_subst"`' +file_list_spec='`$ECHO "$file_list_spec" | $SED "$delay_single_quote_subst"`' +variables_saved_for_relink='`$ECHO "$variables_saved_for_relink" | $SED "$delay_single_quote_subst"`' +need_lib_prefix='`$ECHO "$need_lib_prefix" | $SED "$delay_single_quote_subst"`' +need_version='`$ECHO "$need_version" | $SED "$delay_single_quote_subst"`' +version_type='`$ECHO "$version_type" | $SED "$delay_single_quote_subst"`' +runpath_var='`$ECHO "$runpath_var" | $SED "$delay_single_quote_subst"`' +shlibpath_var='`$ECHO "$shlibpath_var" | $SED "$delay_single_quote_subst"`' +shlibpath_overrides_runpath='`$ECHO "$shlibpath_overrides_runpath" | $SED "$delay_single_quote_subst"`' +libname_spec='`$ECHO "$libname_spec" | $SED "$delay_single_quote_subst"`' +library_names_spec='`$ECHO "$library_names_spec" | $SED "$delay_single_quote_subst"`' +soname_spec='`$ECHO "$soname_spec" | $SED "$delay_single_quote_subst"`' +install_override_mode='`$ECHO "$install_override_mode" | $SED "$delay_single_quote_subst"`' +postinstall_cmds='`$ECHO "$postinstall_cmds" | $SED "$delay_single_quote_subst"`' +postuninstall_cmds='`$ECHO "$postuninstall_cmds" | $SED "$delay_single_quote_subst"`' +finish_cmds='`$ECHO "$finish_cmds" | $SED "$delay_single_quote_subst"`' +finish_eval='`$ECHO "$finish_eval" | $SED "$delay_single_quote_subst"`' +hardcode_into_libs='`$ECHO "$hardcode_into_libs" | $SED "$delay_single_quote_subst"`' +sys_lib_search_path_spec='`$ECHO "$sys_lib_search_path_spec" | $SED "$delay_single_quote_subst"`' +sys_lib_dlsearch_path_spec='`$ECHO "$sys_lib_dlsearch_path_spec" | $SED "$delay_single_quote_subst"`' +hardcode_action='`$ECHO "$hardcode_action" | $SED "$delay_single_quote_subst"`' +enable_dlopen='`$ECHO "$enable_dlopen" | $SED "$delay_single_quote_subst"`' +enable_dlopen_self='`$ECHO "$enable_dlopen_self" | $SED "$delay_single_quote_subst"`' +enable_dlopen_self_static='`$ECHO "$enable_dlopen_self_static" | $SED "$delay_single_quote_subst"`' +old_striplib='`$ECHO "$old_striplib" | $SED "$delay_single_quote_subst"`' +striplib='`$ECHO "$striplib" | $SED "$delay_single_quote_subst"`' + +LTCC='$LTCC' +LTCFLAGS='$LTCFLAGS' +compiler='$compiler_DEFAULT' + +# A function that is used when there is no print builtin or printf. +func_fallback_echo () +{ + eval 'cat <<_LTECHO_EOF +\$1 +_LTECHO_EOF' +} + +# Quote evaled strings. +for var in AS \ +DLLTOOL \ +OBJDUMP \ +SHELL \ +ECHO \ +PATH_SEPARATOR \ +SED \ +GREP \ +EGREP \ +FGREP \ +LD \ +NM \ +LN_S \ +lt_SP2NL \ +lt_NL2SP \ +reload_flag \ +deplibs_check_method \ +file_magic_cmd \ +file_magic_glob \ +want_nocaseglob \ +sharedlib_from_linklib_cmd \ +AR \ +AR_FLAGS \ +archiver_list_spec \ +STRIP \ +RANLIB \ +CC \ +CFLAGS \ +compiler \ +lt_cv_sys_global_symbol_pipe \ +lt_cv_sys_global_symbol_to_cdecl \ +lt_cv_sys_global_symbol_to_c_name_address \ +lt_cv_sys_global_symbol_to_c_name_address_lib_prefix \ +nm_file_list_spec \ +lt_prog_compiler_no_builtin_flag \ +lt_prog_compiler_pic \ +lt_prog_compiler_wl \ +lt_prog_compiler_static \ +lt_cv_prog_compiler_c_o \ +need_locks \ +MANIFEST_TOOL \ +DSYMUTIL \ +NMEDIT \ +LIPO \ +OTOOL \ +OTOOL64 \ +shrext_cmds \ +export_dynamic_flag_spec \ +whole_archive_flag_spec \ +compiler_needs_object \ +with_gnu_ld \ +allow_undefined_flag \ +no_undefined_flag \ +hardcode_libdir_flag_spec \ +hardcode_libdir_separator \ +exclude_expsyms \ +include_expsyms \ +file_list_spec \ +variables_saved_for_relink \ +libname_spec \ +library_names_spec \ +soname_spec \ +install_override_mode \ +finish_eval \ +old_striplib \ +striplib; do + case \`eval \\\\\$ECHO \\\\""\\\\\$\$var"\\\\"\` in + *[\\\\\\\`\\"\\\$]*) + eval "lt_\$var=\\\\\\"\\\`\\\$ECHO \\"\\\$\$var\\" | \\\$SED \\"\\\$sed_quote_subst\\"\\\`\\\\\\"" + ;; + *) + eval "lt_\$var=\\\\\\"\\\$\$var\\\\\\"" + ;; + esac +done + +# Double-quote double-evaled strings. +for var in reload_cmds \ +old_postinstall_cmds \ +old_postuninstall_cmds \ +old_archive_cmds \ +extract_expsyms_cmds \ +old_archive_from_new_cmds \ +old_archive_from_expsyms_cmds \ +archive_cmds \ +archive_expsym_cmds \ +module_cmds \ +module_expsym_cmds \ +export_symbols_cmds \ +prelink_cmds \ +postlink_cmds \ +postinstall_cmds \ +postuninstall_cmds \ +finish_cmds \ +sys_lib_search_path_spec \ +sys_lib_dlsearch_path_spec; do + case \`eval \\\\\$ECHO \\\\""\\\\\$\$var"\\\\"\` in + *[\\\\\\\`\\"\\\$]*) + eval "lt_\$var=\\\\\\"\\\`\\\$ECHO \\"\\\$\$var\\" | \\\$SED -e \\"\\\$double_quote_subst\\" -e \\"\\\$sed_quote_subst\\" -e \\"\\\$delay_variable_subst\\"\\\`\\\\\\"" + ;; + *) + eval "lt_\$var=\\\\\\"\\\$\$var\\\\\\"" + ;; + esac +done + +ac_aux_dir='$ac_aux_dir' +xsi_shell='$xsi_shell' +lt_shell_append='$lt_shell_append' + +# See if we are running on zsh, and set the options which allow our +# commands through without removal of \ escapes INIT. +if test -n "\${ZSH_VERSION+set}" ; then + setopt NO_GLOB_SUBST +fi + + + PACKAGE='$PACKAGE' + VERSION='$VERSION' + TIMESTAMP='$TIMESTAMP' + RM='$RM' + ofile='$ofile' + + + + +_ACEOF + +cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1 + +# Handling of arguments. +for ac_config_target in $ac_config_targets +do + case $ac_config_target in + "jconfig.h") CONFIG_HEADERS="$CONFIG_HEADERS jconfig.h:jconfig.cfg" ;; + "depfiles") CONFIG_COMMANDS="$CONFIG_COMMANDS depfiles" ;; + "libtool") CONFIG_COMMANDS="$CONFIG_COMMANDS libtool" ;; + "Makefile") CONFIG_FILES="$CONFIG_FILES Makefile" ;; + + *) as_fn_error $? "invalid argument: \`$ac_config_target'" "$LINENO" 5;; + esac +done + + +# If the user did not use the arguments to specify the items to instantiate, +# then the envvar interface is used. Set only those that are not. +# We use the long form for the default assignment because of an extremely +# bizarre bug on SunOS 4.1.3. +if $ac_need_defaults; then + test "${CONFIG_FILES+set}" = set || CONFIG_FILES=$config_files + test "${CONFIG_HEADERS+set}" = set || CONFIG_HEADERS=$config_headers + test "${CONFIG_COMMANDS+set}" = set || CONFIG_COMMANDS=$config_commands +fi + +# Have a temporary directory for convenience. Make it in the build tree +# simply because there is no reason against having it here, and in addition, +# creating and moving files from /tmp can sometimes cause problems. +# Hook for its removal unless debugging. +# Note that there is a small window in which the directory will not be cleaned: +# after its creation but before its name has been assigned to `$tmp'. +$debug || +{ + tmp= ac_tmp= + trap 'exit_status=$? + : "${ac_tmp:=$tmp}" + { test ! -d "$ac_tmp" || rm -fr "$ac_tmp"; } && exit $exit_status +' 0 + trap 'as_fn_exit 1' 1 2 13 15 +} +# Create a (secure) tmp directory for tmp files. + +{ + tmp=`(umask 077 && mktemp -d "./confXXXXXX") 2>/dev/null` && + test -d "$tmp" +} || +{ + tmp=./conf$$-$RANDOM + (umask 077 && mkdir "$tmp") +} || as_fn_error $? "cannot create a temporary directory in ." "$LINENO" 5 +ac_tmp=$tmp + +# Set up the scripts for CONFIG_FILES section. +# No need to generate them if there are no CONFIG_FILES. +# This happens for instance with `./config.status config.h'. +if test -n "$CONFIG_FILES"; then + + +ac_cr=`echo X | tr X '\015'` +# On cygwin, bash can eat \r inside `` if the user requested igncr. +# But we know of no other shell where ac_cr would be empty at this +# point, so we can use a bashism as a fallback. +if test "x$ac_cr" = x; then + eval ac_cr=\$\'\\r\' +fi +ac_cs_awk_cr=`$AWK 'BEGIN { print "a\rb" }' /dev/null` +if test "$ac_cs_awk_cr" = "a${ac_cr}b"; then + ac_cs_awk_cr='\\r' +else + ac_cs_awk_cr=$ac_cr +fi + +echo 'BEGIN {' >"$ac_tmp/subs1.awk" && +_ACEOF + + +{ + echo "cat >conf$$subs.awk <<_ACEOF" && + echo "$ac_subst_vars" | sed 's/.*/&!$&$ac_delim/' && + echo "_ACEOF" +} >conf$$subs.sh || + as_fn_error $? "could not make $CONFIG_STATUS" "$LINENO" 5 +ac_delim_num=`echo "$ac_subst_vars" | grep -c '^'` +ac_delim='%!_!# ' +for ac_last_try in false false false false false :; do + . ./conf$$subs.sh || + as_fn_error $? "could not make $CONFIG_STATUS" "$LINENO" 5 + + ac_delim_n=`sed -n "s/.*$ac_delim\$/X/p" conf$$subs.awk | grep -c X` + if test $ac_delim_n = $ac_delim_num; then + break + elif $ac_last_try; then + as_fn_error $? "could not make $CONFIG_STATUS" "$LINENO" 5 + else + ac_delim="$ac_delim!$ac_delim _$ac_delim!! " + fi +done +rm -f conf$$subs.sh + +cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1 +cat >>"\$ac_tmp/subs1.awk" <<\\_ACAWK && +_ACEOF +sed -n ' +h +s/^/S["/; s/!.*/"]=/ +p +g +s/^[^!]*!// +:repl +t repl +s/'"$ac_delim"'$// +t delim +:nl +h +s/\(.\{148\}\)..*/\1/ +t more1 +s/["\\]/\\&/g; s/^/"/; s/$/\\n"\\/ +p +n +b repl +:more1 +s/["\\]/\\&/g; s/^/"/; s/$/"\\/ +p +g +s/.\{148\}// +t nl +:delim +h +s/\(.\{148\}\)..*/\1/ +t more2 +s/["\\]/\\&/g; s/^/"/; s/$/"/ +p +b +:more2 +s/["\\]/\\&/g; s/^/"/; s/$/"\\/ +p +g +s/.\{148\}// +t delim +' >$CONFIG_STATUS || ac_write_fail=1 +rm -f conf$$subs.awk +cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1 +_ACAWK +cat >>"\$ac_tmp/subs1.awk" <<_ACAWK && + for (key in S) S_is_set[key] = 1 + FS = "" + +} +{ + line = $ 0 + nfields = split(line, field, "@") + substed = 0 + len = length(field[1]) + for (i = 2; i < nfields; i++) { + key = field[i] + keylen = length(key) + if (S_is_set[key]) { + value = S[key] + line = substr(line, 1, len) "" value "" substr(line, len + keylen + 3) + len += length(value) + length(field[++i]) + substed = 1 + } else + len += 1 + keylen + } + + print line +} + +_ACAWK +_ACEOF +cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1 +if sed "s/$ac_cr//" < /dev/null > /dev/null 2>&1; then + sed "s/$ac_cr\$//; s/$ac_cr/$ac_cs_awk_cr/g" +else + cat +fi < "$ac_tmp/subs1.awk" > "$ac_tmp/subs.awk" \ + || as_fn_error $? "could not setup config files machinery" "$LINENO" 5 +_ACEOF + +# VPATH may cause trouble with some makes, so we remove sole $(srcdir), +# ${srcdir} and @srcdir@ entries from VPATH if srcdir is ".", strip leading and +# trailing colons and then remove the whole line if VPATH becomes empty +# (actually we leave an empty line to preserve line numbers). +if test "x$srcdir" = x.; then + ac_vpsub='/^[ ]*VPATH[ ]*=[ ]*/{ +h +s/// +s/^/:/ +s/[ ]*$/:/ +s/:\$(srcdir):/:/g +s/:\${srcdir}:/:/g +s/:@srcdir@:/:/g +s/^:*// +s/:*$// +x +s/\(=[ ]*\).*/\1/ +G +s/\n// +s/^[^=]*=[ ]*$// +}' +fi + +cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1 +fi # test -n "$CONFIG_FILES" + +# Set up the scripts for CONFIG_HEADERS section. +# No need to generate them if there are no CONFIG_HEADERS. +# This happens for instance with `./config.status Makefile'. +if test -n "$CONFIG_HEADERS"; then +cat >"$ac_tmp/defines.awk" <<\_ACAWK || +BEGIN { +_ACEOF + +# Transform confdefs.h into an awk script `defines.awk', embedded as +# here-document in config.status, that substitutes the proper values into +# config.h.in to produce config.h. + +# Create a delimiter string that does not exist in confdefs.h, to ease +# handling of long lines. +ac_delim='%!_!# ' +for ac_last_try in false false :; do + ac_tt=`sed -n "/$ac_delim/p" confdefs.h` + if test -z "$ac_tt"; then + break + elif $ac_last_try; then + as_fn_error $? "could not make $CONFIG_HEADERS" "$LINENO" 5 + else + ac_delim="$ac_delim!$ac_delim _$ac_delim!! " + fi +done + +# For the awk script, D is an array of macro values keyed by name, +# likewise P contains macro parameters if any. Preserve backslash +# newline sequences. + +ac_word_re=[_$as_cr_Letters][_$as_cr_alnum]* +sed -n ' +s/.\{148\}/&'"$ac_delim"'/g +t rset +:rset +s/^[ ]*#[ ]*define[ ][ ]*/ / +t def +d +:def +s/\\$// +t bsnl +s/["\\]/\\&/g +s/^ \('"$ac_word_re"'\)\(([^()]*)\)[ ]*\(.*\)/P["\1"]="\2"\ +D["\1"]=" \3"/p +s/^ \('"$ac_word_re"'\)[ ]*\(.*\)/D["\1"]=" \2"/p +d +:bsnl +s/["\\]/\\&/g +s/^ \('"$ac_word_re"'\)\(([^()]*)\)[ ]*\(.*\)/P["\1"]="\2"\ +D["\1"]=" \3\\\\\\n"\\/p +t cont +s/^ \('"$ac_word_re"'\)[ ]*\(.*\)/D["\1"]=" \2\\\\\\n"\\/p +t cont +d +:cont +n +s/.\{148\}/&'"$ac_delim"'/g +t clear +:clear +s/\\$// +t bsnlc +s/["\\]/\\&/g; s/^/"/; s/$/"/p +d +:bsnlc +s/["\\]/\\&/g; s/^/"/; s/$/\\\\\\n"\\/p +b cont +' >$CONFIG_STATUS || ac_write_fail=1 + +cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1 + for (key in D) D_is_set[key] = 1 + FS = "" +} +/^[\t ]*#[\t ]*(define|undef)[\t ]+$ac_word_re([\t (]|\$)/ { + line = \$ 0 + split(line, arg, " ") + if (arg[1] == "#") { + defundef = arg[2] + mac1 = arg[3] + } else { + defundef = substr(arg[1], 2) + mac1 = arg[2] + } + split(mac1, mac2, "(") #) + macro = mac2[1] + prefix = substr(line, 1, index(line, defundef) - 1) + if (D_is_set[macro]) { + # Preserve the white space surrounding the "#". + print prefix "define", macro P[macro] D[macro] + next + } else { + # Replace #undef with comments. This is necessary, for example, + # in the case of _POSIX_SOURCE, which is predefined and required + # on some systems where configure will not decide to define it. + if (defundef == "undef") { + print "/*", prefix defundef, macro, "*/" + next + } + } +} +{ print } +_ACAWK +_ACEOF +cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1 + as_fn_error $? "could not setup config headers machinery" "$LINENO" 5 +fi # test -n "$CONFIG_HEADERS" + + +eval set X " :F $CONFIG_FILES :H $CONFIG_HEADERS :C $CONFIG_COMMANDS" +shift +for ac_tag +do + case $ac_tag in + :[FHLC]) ac_mode=$ac_tag; continue;; + esac + case $ac_mode$ac_tag in + :[FHL]*:*);; + :L* | :C*:*) as_fn_error $? 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Generated by config.status. */ + configure_input='Generated from '` + $as_echo "$*" | sed 's|^[^:]*/||;s|:[^:]*/|, |g' + `' by configure.' + if test x"$ac_file" != x-; then + configure_input="$ac_file. $configure_input" + { $as_echo "$as_me:${as_lineno-$LINENO}: creating $ac_file" >&5 +$as_echo "$as_me: creating $ac_file" >&6;} + fi + # Neutralize special characters interpreted by sed in replacement strings. + case $configure_input in #( + *\&* | *\|* | *\\* ) + ac_sed_conf_input=`$as_echo "$configure_input" | + sed 's/[\\\\&|]/\\\\&/g'`;; #( + *) ac_sed_conf_input=$configure_input;; + esac + + case $ac_tag in + *:-:* | *:-) cat >"$ac_tmp/stdin" \ + || as_fn_error $? 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+need_version=$need_version + +# Library versioning type. +version_type=$version_type + +# Shared library runtime path variable. +runpath_var=$runpath_var + +# Shared library path variable. +shlibpath_var=$shlibpath_var + +# Is shlibpath searched before the hard-coded library search path? +shlibpath_overrides_runpath=$shlibpath_overrides_runpath + +# Format of library name prefix. +libname_spec=$lt_libname_spec + +# List of archive names. First name is the real one, the rest are links. +# The last name is the one that the linker finds with -lNAME +library_names_spec=$lt_library_names_spec + +# The coded name of the library, if different from the real name. +soname_spec=$lt_soname_spec + +# Permission mode override for installation of shared libraries. +install_override_mode=$lt_install_override_mode + +# Command to use after installation of a shared archive. +postinstall_cmds=$lt_postinstall_cmds + +# Command to use after uninstallation of a shared archive. +postuninstall_cmds=$lt_postuninstall_cmds + +# Commands used to finish a libtool library installation in a directory. +finish_cmds=$lt_finish_cmds + +# As "finish_cmds", except a single script fragment to be evaled but +# not shown. +finish_eval=$lt_finish_eval + +# Whether we should hardcode library paths into libraries. +hardcode_into_libs=$hardcode_into_libs + +# Compile-time system search path for libraries. +sys_lib_search_path_spec=$lt_sys_lib_search_path_spec + +# Run-time system search path for libraries. +sys_lib_dlsearch_path_spec=$lt_sys_lib_dlsearch_path_spec + +# Whether dlopen is supported. +dlopen_support=$enable_dlopen + +# Whether dlopen of programs is supported. +dlopen_self=$enable_dlopen_self + +# Whether dlopen of statically linked programs is supported. +dlopen_self_static=$enable_dlopen_self_static + +# Commands to strip libraries. +old_striplib=$lt_old_striplib +striplib=$lt_striplib + + +# The linker used to build libraries. +LD=$lt_LD + +# How to create reloadable object files. +reload_flag=$lt_reload_flag +reload_cmds=$lt_reload_cmds + +# Commands used to build an old-style archive. +old_archive_cmds=$lt_old_archive_cmds + +# A language specific compiler. +CC=$lt_compiler + +# Is the compiler the GNU compiler? +with_gcc=$GCC + +# Compiler flag to turn off builtin functions. +no_builtin_flag=$lt_lt_prog_compiler_no_builtin_flag + +# Additional compiler flags for building library objects. +pic_flag=$lt_lt_prog_compiler_pic + +# How to pass a linker flag through the compiler. +wl=$lt_lt_prog_compiler_wl + +# Compiler flag to prevent dynamic linking. +link_static_flag=$lt_lt_prog_compiler_static + +# Does compiler simultaneously support -c and -o options? +compiler_c_o=$lt_lt_cv_prog_compiler_c_o + +# Whether or not to add -lc for building shared libraries. +build_libtool_need_lc=$archive_cmds_need_lc + +# Whether or not to disallow shared libs when runtime libs are static. +allow_libtool_libs_with_static_runtimes=$enable_shared_with_static_runtimes + +# Compiler flag to allow reflexive dlopens. +export_dynamic_flag_spec=$lt_export_dynamic_flag_spec + +# Compiler flag to generate shared objects directly from archives. +whole_archive_flag_spec=$lt_whole_archive_flag_spec + +# Whether the compiler copes with passing no objects directly. +compiler_needs_object=$lt_compiler_needs_object + +# Create an old-style archive from a shared archive. +old_archive_from_new_cmds=$lt_old_archive_from_new_cmds + +# Create a temporary old-style archive to link instead of a shared archive. +old_archive_from_expsyms_cmds=$lt_old_archive_from_expsyms_cmds + +# Commands used to build a shared archive. +archive_cmds=$lt_archive_cmds +archive_expsym_cmds=$lt_archive_expsym_cmds + +# Commands used to build a loadable module if different from building +# a shared archive. +module_cmds=$lt_module_cmds +module_expsym_cmds=$lt_module_expsym_cmds + +# Whether we are building with GNU ld or not. +with_gnu_ld=$lt_with_gnu_ld + +# Flag that allows shared libraries with undefined symbols to be built. +allow_undefined_flag=$lt_allow_undefined_flag + +# Flag that enforces no undefined symbols. +no_undefined_flag=$lt_no_undefined_flag + +# Flag to hardcode \$libdir into a binary during linking. +# This must work even if \$libdir does not exist +hardcode_libdir_flag_spec=$lt_hardcode_libdir_flag_spec + +# Whether we need a single "-rpath" flag with a separated argument. +hardcode_libdir_separator=$lt_hardcode_libdir_separator + +# Set to "yes" if using DIR/libNAME\${shared_ext} during linking hardcodes +# DIR into the resulting binary. +hardcode_direct=$hardcode_direct + +# Set to "yes" if using DIR/libNAME\${shared_ext} during linking hardcodes +# DIR into the resulting binary and the resulting library dependency is +# "absolute",i.e impossible to change by setting \${shlibpath_var} if the +# library is relocated. +hardcode_direct_absolute=$hardcode_direct_absolute + +# Set to "yes" if using the -LDIR flag during linking hardcodes DIR +# into the resulting binary. +hardcode_minus_L=$hardcode_minus_L + +# Set to "yes" if using SHLIBPATH_VAR=DIR during linking hardcodes DIR +# into the resulting binary. +hardcode_shlibpath_var=$hardcode_shlibpath_var + +# Set to "yes" if building a shared library automatically hardcodes DIR +# into the library and all subsequent libraries and executables linked +# against it. +hardcode_automatic=$hardcode_automatic + +# Set to yes if linker adds runtime paths of dependent libraries +# to runtime path list. +inherit_rpath=$inherit_rpath + +# Whether libtool must link a program against all its dependency libraries. +link_all_deplibs=$link_all_deplibs + +# Set to "yes" if exported symbols are required. +always_export_symbols=$always_export_symbols + +# The commands to list exported symbols. +export_symbols_cmds=$lt_export_symbols_cmds + +# Symbols that should not be listed in the preloaded symbols. +exclude_expsyms=$lt_exclude_expsyms + +# Symbols that must always be exported. +include_expsyms=$lt_include_expsyms + +# Commands necessary for linking programs (against libraries) with templates. +prelink_cmds=$lt_prelink_cmds + +# Commands necessary for finishing linking programs. +postlink_cmds=$lt_postlink_cmds + +# Specify filename containing input files. +file_list_spec=$lt_file_list_spec + +# How to hardcode a shared library path into an executable. +hardcode_action=$hardcode_action + +# ### END LIBTOOL CONFIG + +_LT_EOF + + case $host_os in + aix3*) + cat <<\_LT_EOF >> "$cfgfile" +# AIX sometimes has problems with the GCC collect2 program. For some +# reason, if we set the COLLECT_NAMES environment variable, the problems +# vanish in a puff of smoke. +if test "X${COLLECT_NAMES+set}" != Xset; then + COLLECT_NAMES= + export COLLECT_NAMES +fi +_LT_EOF + ;; + esac + + +ltmain="$ac_aux_dir/ltmain.sh" + + + # We use sed instead of cat because bash on DJGPP gets confused if + # if finds mixed CR/LF and LF-only lines. Since sed operates in + # text mode, it properly converts lines to CR/LF. This bash problem + # is reportedly fixed, but why not run on old versions too? + sed '$q' "$ltmain" >> "$cfgfile" \ + || (rm -f "$cfgfile"; exit 1) + + if test x"$xsi_shell" = xyes; then + sed -e '/^func_dirname ()$/,/^} # func_dirname /c\ +func_dirname ()\ +{\ +\ case ${1} in\ +\ */*) func_dirname_result="${1%/*}${2}" ;;\ +\ * ) func_dirname_result="${3}" ;;\ +\ esac\ +} # Extended-shell func_dirname implementation' "$cfgfile" > $cfgfile.tmp \ + && mv -f "$cfgfile.tmp" "$cfgfile" \ + || (rm -f "$cfgfile" && cp "$cfgfile.tmp" "$cfgfile" && rm -f "$cfgfile.tmp") +test 0 -eq $? || _lt_function_replace_fail=: + + + sed -e '/^func_basename ()$/,/^} # func_basename /c\ +func_basename ()\ +{\ +\ func_basename_result="${1##*/}"\ +} # Extended-shell func_basename implementation' "$cfgfile" > $cfgfile.tmp \ + && mv -f "$cfgfile.tmp" "$cfgfile" \ + || (rm -f "$cfgfile" && cp "$cfgfile.tmp" "$cfgfile" && rm -f "$cfgfile.tmp") +test 0 -eq $? || _lt_function_replace_fail=: + + + sed -e '/^func_dirname_and_basename ()$/,/^} # func_dirname_and_basename /c\ +func_dirname_and_basename ()\ +{\ +\ case ${1} in\ +\ */*) func_dirname_result="${1%/*}${2}" ;;\ +\ * ) func_dirname_result="${3}" ;;\ +\ esac\ +\ func_basename_result="${1##*/}"\ +} # Extended-shell func_dirname_and_basename implementation' "$cfgfile" > $cfgfile.tmp \ + && mv -f "$cfgfile.tmp" "$cfgfile" \ + || (rm -f "$cfgfile" && cp "$cfgfile.tmp" "$cfgfile" && rm -f "$cfgfile.tmp") +test 0 -eq $? || _lt_function_replace_fail=: + + + sed -e '/^func_stripname ()$/,/^} # func_stripname /c\ +func_stripname ()\ +{\ +\ # pdksh 5.2.14 does not do ${X%$Y} correctly if both X and Y are\ +\ # positional parameters, so assign one to ordinary parameter first.\ +\ func_stripname_result=${3}\ +\ func_stripname_result=${func_stripname_result#"${1}"}\ +\ func_stripname_result=${func_stripname_result%"${2}"}\ +} # Extended-shell func_stripname implementation' "$cfgfile" > $cfgfile.tmp \ + && mv -f "$cfgfile.tmp" "$cfgfile" \ + || (rm -f "$cfgfile" && cp "$cfgfile.tmp" "$cfgfile" && rm -f "$cfgfile.tmp") +test 0 -eq $? || _lt_function_replace_fail=: + + + sed -e '/^func_split_long_opt ()$/,/^} # func_split_long_opt /c\ +func_split_long_opt ()\ +{\ +\ func_split_long_opt_name=${1%%=*}\ +\ func_split_long_opt_arg=${1#*=}\ +} # Extended-shell func_split_long_opt implementation' "$cfgfile" > $cfgfile.tmp \ + && mv -f "$cfgfile.tmp" "$cfgfile" \ + || (rm -f "$cfgfile" && cp "$cfgfile.tmp" "$cfgfile" && rm -f "$cfgfile.tmp") +test 0 -eq $? || _lt_function_replace_fail=: + + + sed -e '/^func_split_short_opt ()$/,/^} # func_split_short_opt /c\ +func_split_short_opt ()\ +{\ +\ func_split_short_opt_arg=${1#??}\ +\ func_split_short_opt_name=${1%"$func_split_short_opt_arg"}\ +} # Extended-shell func_split_short_opt implementation' "$cfgfile" > $cfgfile.tmp \ + && mv -f "$cfgfile.tmp" "$cfgfile" \ + || (rm -f "$cfgfile" && cp "$cfgfile.tmp" "$cfgfile" && rm -f "$cfgfile.tmp") +test 0 -eq $? || _lt_function_replace_fail=: + + + sed -e '/^func_lo2o ()$/,/^} # func_lo2o /c\ +func_lo2o ()\ +{\ +\ case ${1} in\ +\ *.lo) func_lo2o_result=${1%.lo}.${objext} ;;\ +\ *) func_lo2o_result=${1} ;;\ +\ esac\ +} # Extended-shell func_lo2o implementation' "$cfgfile" > $cfgfile.tmp \ + && mv -f "$cfgfile.tmp" "$cfgfile" \ + || (rm -f "$cfgfile" && cp "$cfgfile.tmp" "$cfgfile" && rm -f "$cfgfile.tmp") +test 0 -eq $? || _lt_function_replace_fail=: + + + sed -e '/^func_xform ()$/,/^} # func_xform /c\ +func_xform ()\ +{\ + func_xform_result=${1%.*}.lo\ +} # Extended-shell func_xform implementation' "$cfgfile" > $cfgfile.tmp \ + && mv -f "$cfgfile.tmp" "$cfgfile" \ + || (rm -f "$cfgfile" && cp "$cfgfile.tmp" "$cfgfile" && rm -f "$cfgfile.tmp") +test 0 -eq $? || _lt_function_replace_fail=: + + + sed -e '/^func_arith ()$/,/^} # func_arith /c\ +func_arith ()\ +{\ + func_arith_result=$(( $* ))\ +} # Extended-shell func_arith implementation' "$cfgfile" > $cfgfile.tmp \ + && mv -f "$cfgfile.tmp" "$cfgfile" \ + || (rm -f "$cfgfile" && cp "$cfgfile.tmp" "$cfgfile" && rm -f "$cfgfile.tmp") +test 0 -eq $? || _lt_function_replace_fail=: + + + sed -e '/^func_len ()$/,/^} # func_len /c\ +func_len ()\ +{\ + func_len_result=${#1}\ +} # Extended-shell func_len implementation' "$cfgfile" > $cfgfile.tmp \ + && mv -f "$cfgfile.tmp" "$cfgfile" \ + || (rm -f "$cfgfile" && cp "$cfgfile.tmp" "$cfgfile" && rm -f "$cfgfile.tmp") +test 0 -eq $? || _lt_function_replace_fail=: + +fi + +if test x"$lt_shell_append" = xyes; then + sed -e '/^func_append ()$/,/^} # func_append /c\ +func_append ()\ +{\ + eval "${1}+=\\${2}"\ +} # Extended-shell func_append implementation' "$cfgfile" > $cfgfile.tmp \ + && mv -f "$cfgfile.tmp" "$cfgfile" \ + || (rm -f "$cfgfile" && cp "$cfgfile.tmp" "$cfgfile" && rm -f "$cfgfile.tmp") +test 0 -eq $? || _lt_function_replace_fail=: + + + sed -e '/^func_append_quoted ()$/,/^} # func_append_quoted /c\ +func_append_quoted ()\ +{\ +\ func_quote_for_eval "${2}"\ +\ eval "${1}+=\\\\ \\$func_quote_for_eval_result"\ +} # Extended-shell func_append_quoted implementation' "$cfgfile" > $cfgfile.tmp \ + && mv -f "$cfgfile.tmp" "$cfgfile" \ + || (rm -f "$cfgfile" && cp "$cfgfile.tmp" "$cfgfile" && rm -f "$cfgfile.tmp") +test 0 -eq $? || _lt_function_replace_fail=: + + + # Save a `func_append' function call where possible by direct use of '+=' + sed -e 's%func_append \([a-zA-Z_]\{1,\}\) "%\1+="%g' $cfgfile > $cfgfile.tmp \ + && mv -f "$cfgfile.tmp" "$cfgfile" \ + || (rm -f "$cfgfile" && cp "$cfgfile.tmp" "$cfgfile" && rm -f "$cfgfile.tmp") + test 0 -eq $? || _lt_function_replace_fail=: +else + # Save a `func_append' function call even when '+=' is not available + sed -e 's%func_append \([a-zA-Z_]\{1,\}\) "%\1="$\1%g' $cfgfile > $cfgfile.tmp \ + && mv -f "$cfgfile.tmp" "$cfgfile" \ + || (rm -f "$cfgfile" && cp "$cfgfile.tmp" "$cfgfile" && rm -f "$cfgfile.tmp") + test 0 -eq $? || _lt_function_replace_fail=: +fi + +if test x"$_lt_function_replace_fail" = x":"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: Unable to substitute extended shell functions in $ofile" >&5 +$as_echo "$as_me: WARNING: Unable to substitute extended shell functions in $ofile" >&2;} +fi + + + mv -f "$cfgfile" "$ofile" || + (rm -f "$ofile" && cp "$cfgfile" "$ofile" && rm -f "$cfgfile") + chmod +x "$ofile" + + ;; + + esac +done # for ac_tag + + +as_fn_exit 0 +_ACEOF +ac_clean_files=$ac_clean_files_save + +test $ac_write_fail = 0 || + as_fn_error $? "write failure creating $CONFIG_STATUS" "$LINENO" 5 + + +# configure is writing to config.log, and then calls config.status. +# config.status does its own redirection, appending to config.log. +# Unfortunately, on DOS this fails, as config.log is still kept open +# by configure, so config.status won't be able to write to it; its +# output is simply discarded. So we exec the FD to /dev/null, +# effectively closing config.log, so it can be properly (re)opened and +# appended to by config.status. When coming back to configure, we +# need to make the FD available again. +if test "$no_create" != yes; then + ac_cs_success=: + ac_config_status_args= + test "$silent" = yes && + ac_config_status_args="$ac_config_status_args --quiet" + exec 5>/dev/null + $SHELL $CONFIG_STATUS $ac_config_status_args || ac_cs_success=false + exec 5>>config.log + # Use ||, not &&, to avoid exiting from the if with $? = 1, which + # would make configure fail if this is the last instruction. + $ac_cs_success || as_fn_exit 1 +fi +if test -n "$ac_unrecognized_opts" && test "$enable_option_checking" != no; then + { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: unrecognized options: $ac_unrecognized_opts" >&5 +$as_echo "$as_me: WARNING: unrecognized options: $ac_unrecognized_opts" >&2;} +fi + diff --git a/jpeg/configure.ac b/jpeg/configure.ac new file mode 100644 index 0000000..12293b0 --- /dev/null +++ b/jpeg/configure.ac @@ -0,0 +1,356 @@ +# IJG auto-configuration source file. +# Process this file with autoconf to produce a configure script. + +# +# Configure script for IJG libjpeg +# + +AC_INIT([libjpeg], [8.4.0]) + +# Directory where autotools helper scripts lives. +AC_CONFIG_AUX_DIR([.]) + +# Generate configuration headers. +AC_CONFIG_HEADERS([jconfig.h:jconfig.cfg]) + +# Hack: disable autoheader so that it doesn't overwrite our cfg template. +AUTOHEADER="echo autoheader ignored" + +# Check system type +AC_CANONICAL_TARGET + +# Initialize Automake +# Don't require all the GNU mandated files +AM_INIT_AUTOMAKE([-Wall -Werror -Wno-obsolete ansi2knr no-dist foreign]) + +# Make --enable-silent-rules the default. +# To get verbose build output you may configure +# with --disable-silent-rules or use "make V=1". +AM_SILENT_RULES([yes]) + +# This is required when using the de-ANSI-fication feature. +AM_C_PROTOTYPES + +# Add configure option --enable-maintainer-mode which enables +# dependency checking and generation useful to package maintainers. +# This is made an option to avoid confusing end users. +AM_MAINTAINER_MODE + +# Check for programs +AC_PROG_CC +AC_PROG_CC_STDC +AC_PROG_CPP +AC_PROG_INSTALL +AC_PROG_MAKE_SET +AC_PROG_LN_S + +# Check if LD supports linker scripts, +# and define automake conditional HAVE_LD_VERSION_SCRIPT if so. +AC_ARG_ENABLE([ld-version-script], + AS_HELP_STRING([--enable-ld-version-script], + [enable linker version script (default is enabled when possible)]), + [have_ld_version_script=$enableval], []) +if test -z "$have_ld_version_script"; then + AC_MSG_CHECKING([if LD -Wl,--version-script works]) + save_LDFLAGS="$LDFLAGS" + LDFLAGS="$LDFLAGS -Wl,--version-script=conftest.map" + cat > conftest.map < rather than standard .])]) + +# See whether type size_t is defined in any ANSI-standard places; +# if not, perhaps it is defined in . +AC_MSG_CHECKING([for size_t]) +AC_TRY_COMPILE([ +#ifdef HAVE_STDDEF_H +#include +#endif +#ifdef HAVE_STDLIB_H +#include +#endif +#include +#ifdef NEED_BSD_STRINGS +#include +#else +#include +#endif +typedef size_t my_size_t; +], + [ my_size_t foovar; ], + [ijg_size_t_ok=yes], + [ijg_size_t_ok="not ANSI, perhaps it is in sys/types.h"]) +AC_MSG_RESULT([$ijg_size_t_ok]) +if test "$ijg_size_t_ok" != yes; then + AC_CHECK_HEADER([sys/types.h], + [AC_DEFINE([NEED_SYS_TYPES_H], [1], + [Need to include in order to obtain size_t.]) + AC_EGREP_CPP([size_t], [#include ], + [ijg_size_t_ok="size_t is in sys/types.h"], + [ijg_size_t_ok=no])], + [ijg_size_t_ok=no]) + AC_MSG_RESULT([$ijg_size_t_ok]) + if test "$ijg_size_t_ok" = no; then + AC_MSG_WARN([Type size_t is not defined in any of the usual places. + Try putting '"typedef unsigned int size_t;"' in jconfig.h.]) + fi +fi + +# Check compiler characteristics +AC_MSG_CHECKING([for type unsigned char]) +AC_TRY_COMPILE([], [ unsigned char un_char; ], + [AC_MSG_RESULT(yes) + AC_DEFINE([HAVE_UNSIGNED_CHAR], [1], + [Compiler supports 'unsigned char'.])], + [AC_MSG_RESULT(no)]) + +AC_MSG_CHECKING([for type unsigned short]) +AC_TRY_COMPILE([], [ unsigned short un_short; ], + [AC_MSG_RESULT(yes) + AC_DEFINE([HAVE_UNSIGNED_SHORT], [1], + [Compiler supports 'unsigned short'.])], + [AC_MSG_RESULT(no)]) + +AC_MSG_CHECKING([for type void]) +AC_TRY_COMPILE([ +/* Caution: a C++ compiler will insist on valid prototypes */ +typedef void * void_ptr; /* check void * */ +#ifdef HAVE_PROTOTYPES /* check ptr to function returning void */ +typedef void (*void_func) (int a, int b); +#else +typedef void (*void_func) (); +#endif + +#ifdef HAVE_PROTOTYPES /* check void function result */ +void test3function (void_ptr arg1, void_func arg2) +#else +void test3function (arg1, arg2) + void_ptr arg1; + void_func arg2; +#endif +{ + char * locptr = (char *) arg1; /* check casting to and from void * */ + arg1 = (void *) locptr; + (*arg2) (1, 2); /* check call of fcn returning void */ +} +], [ ], + [AC_MSG_RESULT(yes)], + [AC_MSG_RESULT(no) + AC_DEFINE([void], [char], + [Define 'void' as 'char' for archaic compilers + that don't understand it.])]) +AC_C_CONST + +# Check for non-broken inline under various spellings +AC_MSG_CHECKING([for inline]) +ijg_cv_inline="" +AC_TRY_COMPILE([], [} __inline__ int foo() { return 0; } +int bar() { return foo();], ijg_cv_inline="__inline__", +[AC_TRY_COMPILE(, [} __inline int foo() { return 0; } +int bar() { return foo();], ijg_cv_inline="__inline", +[AC_TRY_COMPILE(, [} inline int foo() { return 0; } +int bar() { return foo();], ijg_cv_inline="inline")])]) +AC_MSG_RESULT($ijg_cv_inline) +AC_DEFINE_UNQUOTED([INLINE], [$ijg_cv_inline], + [How to obtain function inlining.]) + +# We cannot check for bogus warnings, but at least we can check for errors +AC_MSG_CHECKING([for broken incomplete types]) +AC_TRY_COMPILE([ typedef struct undefined_structure * undef_struct_ptr; ], + [], + [AC_MSG_RESULT(ok)], + [AC_MSG_RESULT(broken) + AC_DEFINE([INCOMPLETE_TYPES_BROKEN], [1], + [Compiler does not support pointers to unspecified + structures.])]) + +# Test whether global names are unique to at least 15 chars +AC_MSG_CHECKING([for short external names]) +AC_TRY_LINK([ +int possibly_duplicate_function () { return 0; } +int possibly_dupli_function () { return 1; } +], [], + [AC_MSG_RESULT(ok)], + [AC_MSG_RESULT(short) + AC_DEFINE([NEED_SHORT_EXTERNAL_NAMES], [1], + [Linker requires that global names be unique in + first 15 characters.])]) + +# Run-time checks +AC_MSG_CHECKING([to see if char is signed]) +AC_TRY_RUN([ +#ifdef HAVE_PROTOTYPES +int is_char_signed (int arg) +#else +int is_char_signed (arg) + int arg; +#endif +{ + if (arg == 189) { /* expected result for unsigned char */ + return 0; /* type char is unsigned */ + } + else if (arg != -67) { /* expected result for signed char */ + printf("Hmm, it seems 'char' is not eight bits wide on your machine.\n"); + printf("I fear the JPEG software will not work at all.\n\n"); + } + return 1; /* assume char is signed otherwise */ +} +char signed_char_check = (char) (-67); +int main() { + exit(is_char_signed((int) signed_char_check)); +}], [AC_MSG_RESULT(no) + AC_DEFINE([CHAR_IS_UNSIGNED], [1], + [Characters are unsigned])], + [AC_MSG_RESULT(yes)], +[AC_MSG_WARN([Assuming that char is signed on target machine. + If it is unsigned, this will be a little bit inefficient.]) +]) + +AC_MSG_CHECKING([to see if right shift is signed]) +AC_TRY_RUN([ +#ifdef HAVE_PROTOTYPES +int is_shifting_signed (long arg) +#else +int is_shifting_signed (arg) + long arg; +#endif +/* See whether right-shift on a long is signed or not. */ +{ + long res = arg >> 4; + + if (res == -0x7F7E80CL) { /* expected result for signed shift */ + return 1; /* right shift is signed */ + } + /* see if unsigned-shift hack will fix it. */ + /* we can't just test exact value since it depends on width of long... */ + res |= (~0L) << (32-4); + if (res == -0x7F7E80CL) { /* expected result now? */ + return 0; /* right shift is unsigned */ + } + printf("Right shift isn't acting as I expect it to.\n"); + printf("I fear the JPEG software will not work at all.\n\n"); + return 0; /* try it with unsigned anyway */ +} +int main() { + exit(is_shifting_signed(-0x7F7E80B1L)); +}], + [AC_MSG_RESULT(no) + AC_DEFINE([RIGHT_SHIFT_IS_UNSIGNED], [1], + [Broken compiler shifts signed values as an unsigned shift.])], + [AC_MSG_RESULT(yes)], + [AC_MSG_RESULT(Assuming that right shift is signed on target machine.)]) + +AC_MSG_CHECKING([to see if fopen accepts b spec]) +AC_TRY_RUN([ +#include +int main() { + if (fopen("conftestdata", "wb") != NULL) + exit(0); + exit(1); +}], + [AC_MSG_RESULT(yes)], + [AC_MSG_RESULT(no) + AC_DEFINE([DONT_USE_B_MODE], [1], + [Don't open files in binary mode.])], + [AC_MSG_RESULT(Assuming that it does.)]) + +# Configure libtool +AC_LIBTOOL_WIN32_DLL +AC_PROG_LIBTOOL + +# Select memory manager depending on user input. +# If no "-enable-maxmem", use jmemnobs +MEMORYMGR='jmemnobs' +MAXMEM="no" +AC_ARG_ENABLE([maxmem], +[ --enable-maxmem[=N] enable use of temp files, set max mem usage to N MB], +[MAXMEM="$enableval"]) +dnl [# support --with-maxmem for backwards compatibility with IJG V5.] +dnl AC_ARG_WITH(maxmem, , MAXMEM="$withval") +if test "x$MAXMEM" = xyes; then + MAXMEM=1 +fi +if test "x$MAXMEM" != xno; then + if test -n "`echo $MAXMEM | sed 's/[[0-9]]//g'`"; then + AC_MSG_ERROR(non-numeric argument to --enable-maxmem) + fi + DEFAULTMAXMEM=`expr $MAXMEM \* 1048576` + AC_DEFINE_UNQUOTED([DEFAULT_MAX_MEM], [${DEFAULTMAXMEM}], + [Maximum data space library will allocate.]) + AC_MSG_CHECKING([for 'tmpfile()']) + AC_TRY_LINK([#include ], [ FILE * tfile = tmpfile(); ], + [AC_MSG_RESULT(yes) + MEMORYMGR='jmemansi'], + [AC_MSG_RESULT(no) + dnl if tmpfile is not present, must use jmemname. + MEMORYMGR='jmemname' + + # Test for the need to remove temporary files using a signal handler + # (for cjpeg/djpeg) + AC_DEFINE([NEED_SIGNAL_CATCHER], [1], + [Need signal handler to clean up temporary files.]) + AC_MSG_CHECKING([for 'mktemp()']) + AC_TRY_LINK([], [ char fname[80]; mktemp(fname); ], + [AC_MSG_RESULT(yes)], + [AC_MSG_RESULT(no) + AC_DEFINE([NO_MKTEMP], [1], + [The mktemp() function is not available.])])]) +fi +AC_SUBST([MEMORYMGR]) + +# Extract the library version IDs from jpeglib.h. +AC_MSG_CHECKING([libjpeg version number]) +[major=`sed -ne 's/^#define JPEG_LIB_VERSION_MAJOR *\([0-9][0-9]*\).*$/\1/p' $srcdir/jpeglib.h` +minor=`sed -ne 's/^#define JPEG_LIB_VERSION_MINOR *\([0-9][0-9]*\).*$/\1/p' $srcdir/jpeglib.h`] +AC_SUBST([JPEG_LIB_VERSION], + [`expr $major + $minor`:0:$minor]) +AC_MSG_RESULT([$JPEG_LIB_VERSION]) + +AC_CONFIG_FILES([Makefile]) +AC_OUTPUT diff --git a/jpeg/depcomp b/jpeg/depcomp new file mode 100644 index 0000000..bd0ac08 --- /dev/null +++ b/jpeg/depcomp @@ -0,0 +1,688 @@ +#! /bin/sh +# depcomp - compile a program generating dependencies as side-effects + +scriptversion=2011-12-04.11; # UTC + +# Copyright (C) 1999, 2000, 2003, 2004, 2005, 2006, 2007, 2009, 2010, +# 2011 Free Software Foundation, Inc. + +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 2, or (at your option) +# any later version. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. + +# You should have received a copy of the GNU General Public License +# along with this program. If not, see . + +# As a special exception to the GNU General Public License, if you +# distribute this file as part of a program that contains a +# configuration script generated by Autoconf, you may include it under +# the same distribution terms that you use for the rest of that program. + +# Originally written by Alexandre Oliva . + +case $1 in + '') + echo "$0: No command. Try \`$0 --help' for more information." 1>&2 + exit 1; + ;; + -h | --h*) + cat <<\EOF +Usage: depcomp [--help] [--version] PROGRAM [ARGS] + +Run PROGRAMS ARGS to compile a file, generating dependencies +as side-effects. + +Environment variables: + depmode Dependency tracking mode. + source Source file read by `PROGRAMS ARGS'. + object Object file output by `PROGRAMS ARGS'. + DEPDIR directory where to store dependencies. + depfile Dependency file to output. + tmpdepfile Temporary file to use when outputting dependencies. + libtool Whether libtool is used (yes/no). + +Report bugs to . +EOF + exit $? + ;; + -v | --v*) + echo "depcomp $scriptversion" + exit $? + ;; +esac + +if test -z "$depmode" || test -z "$source" || test -z "$object"; then + echo "depcomp: Variables source, object and depmode must be set" 1>&2 + exit 1 +fi + +# Dependencies for sub/bar.o or sub/bar.obj go into sub/.deps/bar.Po. +depfile=${depfile-`echo "$object" | + sed 's|[^\\/]*$|'${DEPDIR-.deps}'/&|;s|\.\([^.]*\)$|.P\1|;s|Pobj$|Po|'`} +tmpdepfile=${tmpdepfile-`echo "$depfile" | sed 's/\.\([^.]*\)$/.T\1/'`} + +rm -f "$tmpdepfile" + +# Some modes work just like other modes, but use different flags. We +# parameterize here, but still list the modes in the big case below, +# to make depend.m4 easier to write. Note that we *cannot* use a case +# here, because this file can only contain one case statement. +if test "$depmode" = hp; then + # HP compiler uses -M and no extra arg. + gccflag=-M + depmode=gcc +fi + +if test "$depmode" = dashXmstdout; then + # This is just like dashmstdout with a different argument. + dashmflag=-xM + depmode=dashmstdout +fi + +cygpath_u="cygpath -u -f -" +if test "$depmode" = msvcmsys; then + # This is just like msvisualcpp but w/o cygpath translation. + # Just convert the backslash-escaped backslashes to single forward + # slashes to satisfy depend.m4 + cygpath_u='sed s,\\\\,/,g' + depmode=msvisualcpp +fi + +if test "$depmode" = msvc7msys; then + # This is just like msvc7 but w/o cygpath translation. + # Just convert the backslash-escaped backslashes to single forward + # slashes to satisfy depend.m4 + cygpath_u='sed s,\\\\,/,g' + depmode=msvc7 +fi + +case "$depmode" in +gcc3) +## gcc 3 implements dependency tracking that does exactly what +## we want. Yay! Note: for some reason libtool 1.4 doesn't like +## it if -MD -MP comes after the -MF stuff. Hmm. +## Unfortunately, FreeBSD c89 acceptance of flags depends upon +## the command line argument order; so add the flags where they +## appear in depend2.am. Note that the slowdown incurred here +## affects only configure: in makefiles, %FASTDEP% shortcuts this. + for arg + do + case $arg in + -c) set fnord "$@" -MT "$object" -MD -MP -MF "$tmpdepfile" "$arg" ;; + *) set fnord "$@" "$arg" ;; + esac + shift # fnord + shift # $arg + done + "$@" + stat=$? + if test $stat -eq 0; then : + else + rm -f "$tmpdepfile" + exit $stat + fi + mv "$tmpdepfile" "$depfile" + ;; + +gcc) +## There are various ways to get dependency output from gcc. Here's +## why we pick this rather obscure method: +## - Don't want to use -MD because we'd like the dependencies to end +## up in a subdir. Having to rename by hand is ugly. +## (We might end up doing this anyway to support other compilers.) +## - The DEPENDENCIES_OUTPUT environment variable makes gcc act like +## -MM, not -M (despite what the docs say). +## - Using -M directly means running the compiler twice (even worse +## than renaming). + if test -z "$gccflag"; then + gccflag=-MD, + fi + "$@" -Wp,"$gccflag$tmpdepfile" + stat=$? + if test $stat -eq 0; then : + else + rm -f "$tmpdepfile" + exit $stat + fi + rm -f "$depfile" + echo "$object : \\" > "$depfile" + alpha=ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz +## The second -e expression handles DOS-style file names with drive letters. + sed -e 's/^[^:]*: / /' \ + -e 's/^['$alpha']:\/[^:]*: / /' < "$tmpdepfile" >> "$depfile" +## This next piece of magic avoids the `deleted header file' problem. +## The problem is that when a header file which appears in a .P file +## is deleted, the dependency causes make to die (because there is +## typically no way to rebuild the header). We avoid this by adding +## dummy dependencies for each header file. Too bad gcc doesn't do +## this for us directly. + tr ' ' ' +' < "$tmpdepfile" | +## Some versions of gcc put a space before the `:'. On the theory +## that the space means something, we add a space to the output as +## well. hp depmode also adds that space, but also prefixes the VPATH +## to the object. Take care to not repeat it in the output. +## Some versions of the HPUX 10.20 sed can't process this invocation +## correctly. Breaking it into two sed invocations is a workaround. + sed -e 's/^\\$//' -e '/^$/d' -e "s|.*$object$||" -e '/:$/d' \ + | sed -e 's/$/ :/' >> "$depfile" + rm -f "$tmpdepfile" + ;; + +hp) + # This case exists only to let depend.m4 do its work. It works by + # looking at the text of this script. This case will never be run, + # since it is checked for above. + exit 1 + ;; + +sgi) + if test "$libtool" = yes; then + "$@" "-Wp,-MDupdate,$tmpdepfile" + else + "$@" -MDupdate "$tmpdepfile" + fi + stat=$? + if test $stat -eq 0; then : + else + rm -f "$tmpdepfile" + exit $stat + fi + rm -f "$depfile" + + if test -f "$tmpdepfile"; then # yes, the sourcefile depend on other files + echo "$object : \\" > "$depfile" + + # Clip off the initial element (the dependent). Don't try to be + # clever and replace this with sed code, as IRIX sed won't handle + # lines with more than a fixed number of characters (4096 in + # IRIX 6.2 sed, 8192 in IRIX 6.5). We also remove comment lines; + # the IRIX cc adds comments like `#:fec' to the end of the + # dependency line. + tr ' ' ' +' < "$tmpdepfile" \ + | sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' | \ + tr ' +' ' ' >> "$depfile" + echo >> "$depfile" + + # The second pass generates a dummy entry for each header file. + tr ' ' ' +' < "$tmpdepfile" \ + | sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' -e 's/$/:/' \ + >> "$depfile" + else + # The sourcefile does not contain any dependencies, so just + # store a dummy comment line, to avoid errors with the Makefile + # "include basename.Plo" scheme. + echo "#dummy" > "$depfile" + fi + rm -f "$tmpdepfile" + ;; + +aix) + # The C for AIX Compiler uses -M and outputs the dependencies + # in a .u file. In older versions, this file always lives in the + # current directory. Also, the AIX compiler puts `$object:' at the + # start of each line; $object doesn't have directory information. + # Version 6 uses the directory in both cases. + dir=`echo "$object" | sed -e 's|/[^/]*$|/|'` + test "x$dir" = "x$object" && dir= + base=`echo "$object" | sed -e 's|^.*/||' -e 's/\.o$//' -e 's/\.lo$//'` + if test "$libtool" = yes; then + tmpdepfile1=$dir$base.u + tmpdepfile2=$base.u + tmpdepfile3=$dir.libs/$base.u + "$@" -Wc,-M + else + tmpdepfile1=$dir$base.u + tmpdepfile2=$dir$base.u + tmpdepfile3=$dir$base.u + "$@" -M + fi + stat=$? + + if test $stat -eq 0; then : + else + rm -f "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3" + exit $stat + fi + + for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3" + do + test -f "$tmpdepfile" && break + done + if test -f "$tmpdepfile"; then + # Each line is of the form `foo.o: dependent.h'. + # Do two passes, one to just change these to + # `$object: dependent.h' and one to simply `dependent.h:'. + sed -e "s,^.*\.[a-z]*:,$object:," < "$tmpdepfile" > "$depfile" + # That's a tab and a space in the []. + sed -e 's,^.*\.[a-z]*:[ ]*,,' -e 's,$,:,' < "$tmpdepfile" >> "$depfile" + else + # The sourcefile does not contain any dependencies, so just + # store a dummy comment line, to avoid errors with the Makefile + # "include basename.Plo" scheme. + echo "#dummy" > "$depfile" + fi + rm -f "$tmpdepfile" + ;; + +icc) + # Intel's C compiler understands `-MD -MF file'. However on + # icc -MD -MF foo.d -c -o sub/foo.o sub/foo.c + # ICC 7.0 will fill foo.d with something like + # foo.o: sub/foo.c + # foo.o: sub/foo.h + # which is wrong. We want: + # sub/foo.o: sub/foo.c + # sub/foo.o: sub/foo.h + # sub/foo.c: + # sub/foo.h: + # ICC 7.1 will output + # foo.o: sub/foo.c sub/foo.h + # and will wrap long lines using \ : + # foo.o: sub/foo.c ... \ + # sub/foo.h ... \ + # ... + + "$@" -MD -MF "$tmpdepfile" + stat=$? + if test $stat -eq 0; then : + else + rm -f "$tmpdepfile" + exit $stat + fi + rm -f "$depfile" + # Each line is of the form `foo.o: dependent.h', + # or `foo.o: dep1.h dep2.h \', or ` dep3.h dep4.h \'. + # Do two passes, one to just change these to + # `$object: dependent.h' and one to simply `dependent.h:'. + sed "s,^[^:]*:,$object :," < "$tmpdepfile" > "$depfile" + # Some versions of the HPUX 10.20 sed can't process this invocation + # correctly. Breaking it into two sed invocations is a workaround. + sed 's,^[^:]*: \(.*\)$,\1,;s/^\\$//;/^$/d;/:$/d' < "$tmpdepfile" | + sed -e 's/$/ :/' >> "$depfile" + rm -f "$tmpdepfile" + ;; + +hp2) + # The "hp" stanza above does not work with aCC (C++) and HP's ia64 + # compilers, which have integrated preprocessors. The correct option + # to use with these is +Maked; it writes dependencies to a file named + # 'foo.d', which lands next to the object file, wherever that + # happens to be. + # Much of this is similar to the tru64 case; see comments there. + dir=`echo "$object" | sed -e 's|/[^/]*$|/|'` + test "x$dir" = "x$object" && dir= + base=`echo "$object" | sed -e 's|^.*/||' -e 's/\.o$//' -e 's/\.lo$//'` + if test "$libtool" = yes; then + tmpdepfile1=$dir$base.d + tmpdepfile2=$dir.libs/$base.d + "$@" -Wc,+Maked + else + tmpdepfile1=$dir$base.d + tmpdepfile2=$dir$base.d + "$@" +Maked + fi + stat=$? + if test $stat -eq 0; then : + else + rm -f "$tmpdepfile1" "$tmpdepfile2" + exit $stat + fi + + for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2" + do + test -f "$tmpdepfile" && break + done + if test -f "$tmpdepfile"; then + sed -e "s,^.*\.[a-z]*:,$object:," "$tmpdepfile" > "$depfile" + # Add `dependent.h:' lines. + sed -ne '2,${ + s/^ *// + s/ \\*$// + s/$/:/ + p + }' "$tmpdepfile" >> "$depfile" + else + echo "#dummy" > "$depfile" + fi + rm -f "$tmpdepfile" "$tmpdepfile2" + ;; + +tru64) + # The Tru64 compiler uses -MD to generate dependencies as a side + # effect. `cc -MD -o foo.o ...' puts the dependencies into `foo.o.d'. + # At least on Alpha/Redhat 6.1, Compaq CCC V6.2-504 seems to put + # dependencies in `foo.d' instead, so we check for that too. + # Subdirectories are respected. + dir=`echo "$object" | sed -e 's|/[^/]*$|/|'` + test "x$dir" = "x$object" && dir= + base=`echo "$object" | sed -e 's|^.*/||' -e 's/\.o$//' -e 's/\.lo$//'` + + if test "$libtool" = yes; then + # With Tru64 cc, shared objects can also be used to make a + # static library. This mechanism is used in libtool 1.4 series to + # handle both shared and static libraries in a single compilation. + # With libtool 1.4, dependencies were output in $dir.libs/$base.lo.d. + # + # With libtool 1.5 this exception was removed, and libtool now + # generates 2 separate objects for the 2 libraries. These two + # compilations output dependencies in $dir.libs/$base.o.d and + # in $dir$base.o.d. We have to check for both files, because + # one of the two compilations can be disabled. We should prefer + # $dir$base.o.d over $dir.libs/$base.o.d because the latter is + # automatically cleaned when .libs/ is deleted, while ignoring + # the former would cause a distcleancheck panic. + tmpdepfile1=$dir.libs/$base.lo.d # libtool 1.4 + tmpdepfile2=$dir$base.o.d # libtool 1.5 + tmpdepfile3=$dir.libs/$base.o.d # libtool 1.5 + tmpdepfile4=$dir.libs/$base.d # Compaq CCC V6.2-504 + "$@" -Wc,-MD + else + tmpdepfile1=$dir$base.o.d + tmpdepfile2=$dir$base.d + tmpdepfile3=$dir$base.d + tmpdepfile4=$dir$base.d + "$@" -MD + fi + + stat=$? + if test $stat -eq 0; then : + else + rm -f "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3" "$tmpdepfile4" + exit $stat + fi + + for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3" "$tmpdepfile4" + do + test -f "$tmpdepfile" && break + done + if test -f "$tmpdepfile"; then + sed -e "s,^.*\.[a-z]*:,$object:," < "$tmpdepfile" > "$depfile" + # That's a tab and a space in the []. + sed -e 's,^.*\.[a-z]*:[ ]*,,' -e 's,$,:,' < "$tmpdepfile" >> "$depfile" + else + echo "#dummy" > "$depfile" + fi + rm -f "$tmpdepfile" + ;; + +msvc7) + if test "$libtool" = yes; then + showIncludes=-Wc,-showIncludes + else + showIncludes=-showIncludes + fi + "$@" $showIncludes > "$tmpdepfile" + stat=$? + grep -v '^Note: including file: ' "$tmpdepfile" + if test "$stat" = 0; then : + else + rm -f "$tmpdepfile" + exit $stat + fi + rm -f "$depfile" + echo "$object : \\" > "$depfile" + # The first sed program below extracts the file names and escapes + # backslashes for cygpath. The second sed program outputs the file + # name when reading, but also accumulates all include files in the + # hold buffer in order to output them again at the end. This only + # works with sed implementations that can handle large buffers. + sed < "$tmpdepfile" -n ' +/^Note: including file: *\(.*\)/ { + s//\1/ + s/\\/\\\\/g + p +}' | $cygpath_u | sort -u | sed -n ' +s/ /\\ /g +s/\(.*\)/ \1 \\/p +s/.\(.*\) \\/\1:/ +H +$ { + s/.*/ / + G + p +}' >> "$depfile" + rm -f "$tmpdepfile" + ;; + +msvc7msys) + # This case exists only to let depend.m4 do its work. It works by + # looking at the text of this script. This case will never be run, + # since it is checked for above. + exit 1 + ;; + +#nosideeffect) + # This comment above is used by automake to tell side-effect + # dependency tracking mechanisms from slower ones. + +dashmstdout) + # Important note: in order to support this mode, a compiler *must* + # always write the preprocessed file to stdout, regardless of -o. + "$@" || exit $? + + # Remove the call to Libtool. + if test "$libtool" = yes; then + while test "X$1" != 'X--mode=compile'; do + shift + done + shift + fi + + # Remove `-o $object'. + IFS=" " + for arg + do + case $arg in + -o) + shift + ;; + $object) + shift + ;; + *) + set fnord "$@" "$arg" + shift # fnord + shift # $arg + ;; + esac + done + + test -z "$dashmflag" && dashmflag=-M + # Require at least two characters before searching for `:' + # in the target name. This is to cope with DOS-style filenames: + # a dependency such as `c:/foo/bar' could be seen as target `c' otherwise. + "$@" $dashmflag | + sed 's:^[ ]*[^: ][^:][^:]*\:[ ]*:'"$object"'\: :' > "$tmpdepfile" + rm -f "$depfile" + cat < "$tmpdepfile" > "$depfile" + tr ' ' ' +' < "$tmpdepfile" | \ +## Some versions of the HPUX 10.20 sed can't process this invocation +## correctly. Breaking it into two sed invocations is a workaround. + sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile" + rm -f "$tmpdepfile" + ;; + +dashXmstdout) + # This case only exists to satisfy depend.m4. It is never actually + # run, as this mode is specially recognized in the preamble. + exit 1 + ;; + +makedepend) + "$@" || exit $? + # Remove any Libtool call + if test "$libtool" = yes; then + while test "X$1" != 'X--mode=compile'; do + shift + done + shift + fi + # X makedepend + shift + cleared=no eat=no + for arg + do + case $cleared in + no) + set ""; shift + cleared=yes ;; + esac + if test $eat = yes; then + eat=no + continue + fi + case "$arg" in + -D*|-I*) + set fnord "$@" "$arg"; shift ;; + # Strip any option that makedepend may not understand. Remove + # the object too, otherwise makedepend will parse it as a source file. + -arch) + eat=yes ;; + -*|$object) + ;; + *) + set fnord "$@" "$arg"; shift ;; + esac + done + obj_suffix=`echo "$object" | sed 's/^.*\././'` + touch "$tmpdepfile" + ${MAKEDEPEND-makedepend} -o"$obj_suffix" -f"$tmpdepfile" "$@" + rm -f "$depfile" + # makedepend may prepend the VPATH from the source file name to the object. + # No need to regex-escape $object, excess matching of '.' is harmless. + sed "s|^.*\($object *:\)|\1|" "$tmpdepfile" > "$depfile" + sed '1,2d' "$tmpdepfile" | tr ' ' ' +' | \ +## Some versions of the HPUX 10.20 sed can't process this invocation +## correctly. Breaking it into two sed invocations is a workaround. + sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile" + rm -f "$tmpdepfile" "$tmpdepfile".bak + ;; + +cpp) + # Important note: in order to support this mode, a compiler *must* + # always write the preprocessed file to stdout. + "$@" || exit $? + + # Remove the call to Libtool. + if test "$libtool" = yes; then + while test "X$1" != 'X--mode=compile'; do + shift + done + shift + fi + + # Remove `-o $object'. + IFS=" " + for arg + do + case $arg in + -o) + shift + ;; + $object) + shift + ;; + *) + set fnord "$@" "$arg" + shift # fnord + shift # $arg + ;; + esac + done + + "$@" -E | + sed -n -e '/^# [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' \ + -e '/^#line [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' | + sed '$ s: \\$::' > "$tmpdepfile" + rm -f "$depfile" + echo "$object : \\" > "$depfile" + cat < "$tmpdepfile" >> "$depfile" + sed < "$tmpdepfile" '/^$/d;s/^ //;s/ \\$//;s/$/ :/' >> "$depfile" + rm -f "$tmpdepfile" + ;; + +msvisualcpp) + # Important note: in order to support this mode, a compiler *must* + # always write the preprocessed file to stdout. + "$@" || exit $? + + # Remove the call to Libtool. + if test "$libtool" = yes; then + while test "X$1" != 'X--mode=compile'; do + shift + done + shift + fi + + IFS=" " + for arg + do + case "$arg" in + -o) + shift + ;; + $object) + shift + ;; + "-Gm"|"/Gm"|"-Gi"|"/Gi"|"-ZI"|"/ZI") + set fnord "$@" + shift + shift + ;; + *) + set fnord "$@" "$arg" + shift + shift + ;; + esac + done + "$@" -E 2>/dev/null | + sed -n '/^#line [0-9][0-9]* "\([^"]*\)"/ s::\1:p' | $cygpath_u | sort -u > "$tmpdepfile" + rm -f "$depfile" + echo "$object : \\" > "$depfile" + sed < "$tmpdepfile" -n -e 's% %\\ %g' -e '/^\(.*\)$/ s:: \1 \\:p' >> "$depfile" + echo " " >> "$depfile" + sed < "$tmpdepfile" -n -e 's% %\\ %g' -e '/^\(.*\)$/ s::\1\::p' >> "$depfile" + rm -f "$tmpdepfile" + ;; + +msvcmsys) + # This case exists only to let depend.m4 do its work. It works by + # looking at the text of this script. This case will never be run, + # since it is checked for above. + exit 1 + ;; + +none) + exec "$@" + ;; + +*) + echo "Unknown depmode $depmode" 1>&2 + exit 1 + ;; +esac + +exit 0 + +# Local Variables: +# mode: shell-script +# sh-indentation: 2 +# eval: (add-hook 'write-file-hooks 'time-stamp) +# time-stamp-start: "scriptversion=" +# time-stamp-format: "%:y-%02m-%02d.%02H" +# time-stamp-time-zone: "UTC" +# time-stamp-end: "; # UTC" +# End: diff --git a/jpeg/djpeg.1 b/jpeg/djpeg.1 new file mode 100644 index 0000000..f3722d1 --- /dev/null +++ b/jpeg/djpeg.1 @@ -0,0 +1,252 @@ +.TH DJPEG 1 "3 October 2009" +.SH NAME +djpeg \- decompress a JPEG file to an image file +.SH SYNOPSIS +.B djpeg +[ +.I options +] +[ +.I filename +] +.LP +.SH DESCRIPTION +.LP +.B djpeg +decompresses the named JPEG file, or the standard input if no file is named, +and produces an image file on the standard output. PBMPLUS (PPM/PGM), BMP, +GIF, Targa, or RLE (Utah Raster Toolkit) output format can be selected. +(RLE is supported only if the URT library is available.) +.SH OPTIONS +All switch names may be abbreviated; for example, +.B \-grayscale +may be written +.B \-gray +or +.BR \-gr . +Most of the "basic" switches can be abbreviated to as little as one letter. +Upper and lower case are equivalent (thus +.B \-BMP +is the same as +.BR \-bmp ). +British spellings are also accepted (e.g., +.BR \-greyscale ), +though for brevity these are not mentioned below. +.PP +The basic switches are: +.TP +.BI \-colors " N" +Reduce image to at most N colors. This reduces the number of colors used in +the output image, so that it can be displayed on a colormapped display or +stored in a colormapped file format. For example, if you have an 8-bit +display, you'd need to reduce to 256 or fewer colors. +.TP +.BI \-quantize " N" +Same as +.BR \-colors . +.B \-colors +is the recommended name, +.B \-quantize +is provided only for backwards compatibility. +.TP +.B \-fast +Select recommended processing options for fast, low quality output. (The +default options are chosen for highest quality output.) Currently, this is +equivalent to \fB\-dct fast \-nosmooth \-onepass \-dither ordered\fR. +.TP +.B \-grayscale +Force gray-scale output even if JPEG file is color. Useful for viewing on +monochrome displays; also, +.B djpeg +runs noticeably faster in this mode. +.TP +.BI \-scale " M/N" +Scale the output image by a factor M/N. Currently supported scale factors are +M/N with all M from 1 to 16, where N is the source DCT size, which is 8 for +baseline JPEG. If the /N part is omitted, then M specifies the DCT scaled +size to be applied on the given input. For baseline JPEG this is equivalent +to M/8 scaling, since the source DCT size for baseline JPEG is 8. +Scaling is handy if the image is larger than your screen; also, +.B djpeg +runs much faster when scaling down the output. +.TP +.B \-bmp +Select BMP output format (Windows flavor). 8-bit colormapped format is +emitted if +.B \-colors +or +.B \-grayscale +is specified, or if the JPEG file is gray-scale; otherwise, 24-bit full-color +format is emitted. +.TP +.B \-gif +Select GIF output format. Since GIF does not support more than 256 colors, +.B \-colors 256 +is assumed (unless you specify a smaller number of colors). +.TP +.B \-os2 +Select BMP output format (OS/2 1.x flavor). 8-bit colormapped format is +emitted if +.B \-colors +or +.B \-grayscale +is specified, or if the JPEG file is gray-scale; otherwise, 24-bit full-color +format is emitted. +.TP +.B \-pnm +Select PBMPLUS (PPM/PGM) output format (this is the default format). +PGM is emitted if the JPEG file is gray-scale or if +.B \-grayscale +is specified; otherwise PPM is emitted. +.TP +.B \-rle +Select RLE output format. (Requires URT library.) +.TP +.B \-targa +Select Targa output format. Gray-scale format is emitted if the JPEG file is +gray-scale or if +.B \-grayscale +is specified; otherwise, colormapped format is emitted if +.B \-colors +is specified; otherwise, 24-bit full-color format is emitted. +.PP +Switches for advanced users: +.TP +.B \-dct int +Use integer DCT method (default). +.TP +.B \-dct fast +Use fast integer DCT (less accurate). +.TP +.B \-dct float +Use floating-point DCT method. +The float method is very slightly more accurate than the int method, but is +much slower unless your machine has very fast floating-point hardware. Also +note that results of the floating-point method may vary slightly across +machines, while the integer methods should give the same results everywhere. +The fast integer method is much less accurate than the other two. +.TP +.B \-dither fs +Use Floyd-Steinberg dithering in color quantization. +.TP +.B \-dither ordered +Use ordered dithering in color quantization. +.TP +.B \-dither none +Do not use dithering in color quantization. +By default, Floyd-Steinberg dithering is applied when quantizing colors; this +is slow but usually produces the best results. Ordered dither is a compromise +between speed and quality; no dithering is fast but usually looks awful. Note +that these switches have no effect unless color quantization is being done. +Ordered dither is only available in +.B \-onepass +mode. +.TP +.BI \-map " file" +Quantize to the colors used in the specified image file. This is useful for +producing multiple files with identical color maps, or for forcing a +predefined set of colors to be used. The +.I file +must be a GIF or PPM file. This option overrides +.B \-colors +and +.BR \-onepass . +.TP +.B \-nosmooth +Don't use high-quality upsampling. +.TP +.B \-onepass +Use one-pass instead of two-pass color quantization. The one-pass method is +faster and needs less memory, but it produces a lower-quality image. +.B \-onepass +is ignored unless you also say +.B \-colors +.IR N . +Also, the one-pass method is always used for gray-scale output (the two-pass +method is no improvement then). +.TP +.BI \-maxmemory " N" +Set limit for amount of memory to use in processing large images. Value is +in thousands of bytes, or millions of bytes if "M" is attached to the +number. For example, +.B \-max 4m +selects 4000000 bytes. If more space is needed, temporary files will be used. +.TP +.BI \-outfile " name" +Send output image to the named file, not to standard output. +.TP +.B \-verbose +Enable debug printout. More +.BR \-v 's +give more output. Also, version information is printed at startup. +.TP +.B \-debug +Same as +.BR \-verbose . +.SH EXAMPLES +.LP +This example decompresses the JPEG file foo.jpg, quantizes it to +256 colors, and saves the output in 8-bit BMP format in foo.bmp: +.IP +.B djpeg \-colors 256 \-bmp +.I foo.jpg +.B > +.I foo.bmp +.SH HINTS +To get a quick preview of an image, use the +.B \-grayscale +and/or +.B \-scale +switches. +.B \-grayscale \-scale 1/8 +is the fastest case. +.PP +Several options are available that trade off image quality to gain speed. +.B \-fast +turns on the recommended settings. +.PP +.B \-dct fast +and/or +.B \-nosmooth +gain speed at a small sacrifice in quality. +When producing a color-quantized image, +.B \-onepass \-dither ordered +is fast but much lower quality than the default behavior. +.B \-dither none +may give acceptable results in two-pass mode, but is seldom tolerable in +one-pass mode. +.PP +If you are fortunate enough to have very fast floating point hardware, +\fB\-dct float\fR may be even faster than \fB\-dct fast\fR. But on most +machines \fB\-dct float\fR is slower than \fB\-dct int\fR; in this case it is +not worth using, because its theoretical accuracy advantage is too small to be +significant in practice. +.SH ENVIRONMENT +.TP +.B JPEGMEM +If this environment variable is set, its value is the default memory limit. +The value is specified as described for the +.B \-maxmemory +switch. +.B JPEGMEM +overrides the default value specified when the program was compiled, and +itself is overridden by an explicit +.BR \-maxmemory . +.SH SEE ALSO +.BR cjpeg (1), +.BR jpegtran (1), +.BR rdjpgcom (1), +.BR wrjpgcom (1) +.br +.BR ppm (5), +.BR pgm (5) +.br +Wallace, Gregory K. "The JPEG Still Picture Compression Standard", +Communications of the ACM, April 1991 (vol. 34, no. 4), pp. 30-44. +.SH AUTHOR +Independent JPEG Group +.SH BUGS +To avoid the Unisys LZW patent, +.B djpeg +produces uncompressed GIF files. These are larger than they should be, but +are readable by standard GIF decoders. diff --git a/jpeg/djpeg.c b/jpeg/djpeg.c new file mode 100644 index 0000000..bc544dc --- /dev/null +++ b/jpeg/djpeg.c @@ -0,0 +1,617 @@ +/* + * djpeg.c + * + * Copyright (C) 1991-1997, Thomas G. Lane. + * Modified 2009 by Guido Vollbeding. + * This file is part of the Independent JPEG Group's software. + * For conditions of distribution and use, see the accompanying README file. + * + * This file contains a command-line user interface for the JPEG decompressor. + * It should work on any system with Unix- or MS-DOS-style command lines. + * + * Two different command line styles are permitted, depending on the + * compile-time switch TWO_FILE_COMMANDLINE: + * djpeg [options] inputfile outputfile + * djpeg [options] [inputfile] + * In the second style, output is always to standard output, which you'd + * normally redirect to a file or pipe to some other program. Input is + * either from a named file or from standard input (typically redirected). + * The second style is convenient on Unix but is unhelpful on systems that + * don't support pipes. Also, you MUST use the first style if your system + * doesn't do binary I/O to stdin/stdout. + * To simplify script writing, the "-outfile" switch is provided. The syntax + * djpeg [options] -outfile outputfile inputfile + * works regardless of which command line style is used. + */ + +#include "cdjpeg.h" /* Common decls for cjpeg/djpeg applications */ +#include "jversion.h" /* for version message */ + +#include /* to declare isprint() */ + +#ifdef USE_CCOMMAND /* command-line reader for Macintosh */ +#ifdef __MWERKS__ +#include /* Metrowerks needs this */ +#include /* ... and this */ +#endif +#ifdef THINK_C +#include /* Think declares it here */ +#endif +#endif + + +/* Create the add-on message string table. */ + +#define JMESSAGE(code,string) string , + +static const char * const cdjpeg_message_table[] = { +#include "cderror.h" + NULL +}; + + +/* + * This list defines the known output image formats + * (not all of which need be supported by a given version). + * You can change the default output format by defining DEFAULT_FMT; + * indeed, you had better do so if you undefine PPM_SUPPORTED. + */ + +typedef enum { + FMT_BMP, /* BMP format (Windows flavor) */ + FMT_GIF, /* GIF format */ + FMT_OS2, /* BMP format (OS/2 flavor) */ + FMT_PPM, /* PPM/PGM (PBMPLUS formats) */ + FMT_RLE, /* RLE format */ + FMT_TARGA, /* Targa format */ + FMT_TIFF /* TIFF format */ +} IMAGE_FORMATS; + +#ifndef DEFAULT_FMT /* so can override from CFLAGS in Makefile */ +#define DEFAULT_FMT FMT_PPM +#endif + +static IMAGE_FORMATS requested_fmt; + + +/* + * Argument-parsing code. + * The switch parser is designed to be useful with DOS-style command line + * syntax, ie, intermixed switches and file names, where only the switches + * to the left of a given file name affect processing of that file. + * The main program in this file doesn't actually use this capability... + */ + + +static const char * progname; /* program name for error messages */ +static char * outfilename; /* for -outfile switch */ + + +LOCAL(void) +usage (void) +/* complain about bad command line */ +{ + fprintf(stderr, "usage: %s [switches] ", progname); +#ifdef TWO_FILE_COMMANDLINE + fprintf(stderr, "inputfile outputfile\n"); +#else + fprintf(stderr, "[inputfile]\n"); +#endif + + fprintf(stderr, "Switches (names may be abbreviated):\n"); + fprintf(stderr, " -colors N Reduce image to no more than N colors\n"); + fprintf(stderr, " -fast Fast, low-quality processing\n"); + fprintf(stderr, " -grayscale Force grayscale output\n"); +#ifdef IDCT_SCALING_SUPPORTED + fprintf(stderr, " -scale M/N Scale output image by fraction M/N, eg, 1/8\n"); +#endif +#ifdef BMP_SUPPORTED + fprintf(stderr, " -bmp Select BMP output format (Windows style)%s\n", + (DEFAULT_FMT == FMT_BMP ? " (default)" : "")); +#endif +#ifdef GIF_SUPPORTED + fprintf(stderr, " -gif Select GIF output format%s\n", + (DEFAULT_FMT == FMT_GIF ? " (default)" : "")); +#endif +#ifdef BMP_SUPPORTED + fprintf(stderr, " -os2 Select BMP output format (OS/2 style)%s\n", + (DEFAULT_FMT == FMT_OS2 ? " (default)" : "")); +#endif +#ifdef PPM_SUPPORTED + fprintf(stderr, " -pnm Select PBMPLUS (PPM/PGM) output format%s\n", + (DEFAULT_FMT == FMT_PPM ? " (default)" : "")); +#endif +#ifdef RLE_SUPPORTED + fprintf(stderr, " -rle Select Utah RLE output format%s\n", + (DEFAULT_FMT == FMT_RLE ? " (default)" : "")); +#endif +#ifdef TARGA_SUPPORTED + fprintf(stderr, " -targa Select Targa output format%s\n", + (DEFAULT_FMT == FMT_TARGA ? " (default)" : "")); +#endif + fprintf(stderr, "Switches for advanced users:\n"); +#ifdef DCT_ISLOW_SUPPORTED + fprintf(stderr, " -dct int Use integer DCT method%s\n", + (JDCT_DEFAULT == JDCT_ISLOW ? " (default)" : "")); +#endif +#ifdef DCT_IFAST_SUPPORTED + fprintf(stderr, " -dct fast Use fast integer DCT (less accurate)%s\n", + (JDCT_DEFAULT == JDCT_IFAST ? " (default)" : "")); +#endif +#ifdef DCT_FLOAT_SUPPORTED + fprintf(stderr, " -dct float Use floating-point DCT method%s\n", + (JDCT_DEFAULT == JDCT_FLOAT ? " (default)" : "")); +#endif + fprintf(stderr, " -dither fs Use F-S dithering (default)\n"); + fprintf(stderr, " -dither none Don't use dithering in quantization\n"); + fprintf(stderr, " -dither ordered Use ordered dither (medium speed, quality)\n"); +#ifdef QUANT_2PASS_SUPPORTED + fprintf(stderr, " -map FILE Map to colors used in named image file\n"); +#endif + fprintf(stderr, " -nosmooth Don't use high-quality upsampling\n"); +#ifdef QUANT_1PASS_SUPPORTED + fprintf(stderr, " -onepass Use 1-pass quantization (fast, low quality)\n"); +#endif + fprintf(stderr, " -maxmemory N Maximum memory to use (in kbytes)\n"); + fprintf(stderr, " -outfile name Specify name for output file\n"); + fprintf(stderr, " -verbose or -debug Emit debug output\n"); + exit(EXIT_FAILURE); +} + + +LOCAL(int) +parse_switches (j_decompress_ptr cinfo, int argc, char **argv, + int last_file_arg_seen, boolean for_real) +/* Parse optional switches. + * Returns argv[] index of first file-name argument (== argc if none). + * Any file names with indexes <= last_file_arg_seen are ignored; + * they have presumably been processed in a previous iteration. + * (Pass 0 for last_file_arg_seen on the first or only iteration.) + * for_real is FALSE on the first (dummy) pass; we may skip any expensive + * processing. + */ +{ + int argn; + char * arg; + + /* Set up default JPEG parameters. */ + requested_fmt = DEFAULT_FMT; /* set default output file format */ + outfilename = NULL; + cinfo->err->trace_level = 0; + + /* Scan command line options, adjust parameters */ + + for (argn = 1; argn < argc; argn++) { + arg = argv[argn]; + if (*arg != '-') { + /* Not a switch, must be a file name argument */ + if (argn <= last_file_arg_seen) { + outfilename = NULL; /* -outfile applies to just one input file */ + continue; /* ignore this name if previously processed */ + } + break; /* else done parsing switches */ + } + arg++; /* advance past switch marker character */ + + if (keymatch(arg, "bmp", 1)) { + /* BMP output format. */ + requested_fmt = FMT_BMP; + + } else if (keymatch(arg, "colors", 1) || keymatch(arg, "colours", 1) || + keymatch(arg, "quantize", 1) || keymatch(arg, "quantise", 1)) { + /* Do color quantization. */ + int val; + + if (++argn >= argc) /* advance to next argument */ + usage(); + if (sscanf(argv[argn], "%d", &val) != 1) + usage(); + cinfo->desired_number_of_colors = val; + cinfo->quantize_colors = TRUE; + + } else if (keymatch(arg, "dct", 2)) { + /* Select IDCT algorithm. */ + if (++argn >= argc) /* advance to next argument */ + usage(); + if (keymatch(argv[argn], "int", 1)) { + cinfo->dct_method = JDCT_ISLOW; + } else if (keymatch(argv[argn], "fast", 2)) { + cinfo->dct_method = JDCT_IFAST; + } else if (keymatch(argv[argn], "float", 2)) { + cinfo->dct_method = JDCT_FLOAT; + } else + usage(); + + } else if (keymatch(arg, "dither", 2)) { + /* Select dithering algorithm. */ + if (++argn >= argc) /* advance to next argument */ + usage(); + if (keymatch(argv[argn], "fs", 2)) { + cinfo->dither_mode = JDITHER_FS; + } else if (keymatch(argv[argn], "none", 2)) { + cinfo->dither_mode = JDITHER_NONE; + } else if (keymatch(argv[argn], "ordered", 2)) { + cinfo->dither_mode = JDITHER_ORDERED; + } else + usage(); + + } else if (keymatch(arg, "debug", 1) || keymatch(arg, "verbose", 1)) { + /* Enable debug printouts. */ + /* On first -d, print version identification */ + static boolean printed_version = FALSE; + + if (! printed_version) { + fprintf(stderr, "Independent JPEG Group's DJPEG, version %s\n%s\n", + JVERSION, JCOPYRIGHT); + printed_version = TRUE; + } + cinfo->err->trace_level++; + + } else if (keymatch(arg, "fast", 1)) { + /* Select recommended processing options for quick-and-dirty output. */ + cinfo->two_pass_quantize = FALSE; + cinfo->dither_mode = JDITHER_ORDERED; + if (! cinfo->quantize_colors) /* don't override an earlier -colors */ + cinfo->desired_number_of_colors = 216; + cinfo->dct_method = JDCT_FASTEST; + cinfo->do_fancy_upsampling = FALSE; + + } else if (keymatch(arg, "gif", 1)) { + /* GIF output format. */ + requested_fmt = FMT_GIF; + + } else if (keymatch(arg, "grayscale", 2) || keymatch(arg, "greyscale",2)) { + /* Force monochrome output. */ + cinfo->out_color_space = JCS_GRAYSCALE; + + } else if (keymatch(arg, "map", 3)) { + /* Quantize to a color map taken from an input file. */ + if (++argn >= argc) /* advance to next argument */ + usage(); + if (for_real) { /* too expensive to do twice! */ +#ifdef QUANT_2PASS_SUPPORTED /* otherwise can't quantize to supplied map */ + FILE * mapfile; + + if ((mapfile = fopen(argv[argn], READ_BINARY)) == NULL) { + fprintf(stderr, "%s: can't open %s\n", progname, argv[argn]); + exit(EXIT_FAILURE); + } + read_color_map(cinfo, mapfile); + fclose(mapfile); + cinfo->quantize_colors = TRUE; +#else + ERREXIT(cinfo, JERR_NOT_COMPILED); +#endif + } + + } else if (keymatch(arg, "maxmemory", 3)) { + /* Maximum memory in Kb (or Mb with 'm'). */ + long lval; + char ch = 'x'; + + if (++argn >= argc) /* advance to next argument */ + usage(); + if (sscanf(argv[argn], "%ld%c", &lval, &ch) < 1) + usage(); + if (ch == 'm' || ch == 'M') + lval *= 1000L; + cinfo->mem->max_memory_to_use = lval * 1000L; + + } else if (keymatch(arg, "nosmooth", 3)) { + /* Suppress fancy upsampling */ + cinfo->do_fancy_upsampling = FALSE; + + } else if (keymatch(arg, "onepass", 3)) { + /* Use fast one-pass quantization. */ + cinfo->two_pass_quantize = FALSE; + + } else if (keymatch(arg, "os2", 3)) { + /* BMP output format (OS/2 flavor). */ + requested_fmt = FMT_OS2; + + } else if (keymatch(arg, "outfile", 4)) { + /* Set output file name. */ + if (++argn >= argc) /* advance to next argument */ + usage(); + outfilename = argv[argn]; /* save it away for later use */ + + } else if (keymatch(arg, "pnm", 1) || keymatch(arg, "ppm", 1)) { + /* PPM/PGM output format. */ + requested_fmt = FMT_PPM; + + } else if (keymatch(arg, "rle", 1)) { + /* RLE output format. */ + requested_fmt = FMT_RLE; + + } else if (keymatch(arg, "scale", 1)) { + /* Scale the output image by a fraction M/N. */ + if (++argn >= argc) /* advance to next argument */ + usage(); + if (sscanf(argv[argn], "%d/%d", + &cinfo->scale_num, &cinfo->scale_denom) < 1) + usage(); + + } else if (keymatch(arg, "targa", 1)) { + /* Targa output format. */ + requested_fmt = FMT_TARGA; + + } else { + usage(); /* bogus switch */ + } + } + + return argn; /* return index of next arg (file name) */ +} + + +/* + * Marker processor for COM and interesting APPn markers. + * This replaces the library's built-in processor, which just skips the marker. + * We want to print out the marker as text, to the extent possible. + * Note this code relies on a non-suspending data source. + */ + +LOCAL(unsigned int) +jpeg_getc (j_decompress_ptr cinfo) +/* Read next byte */ +{ + struct jpeg_source_mgr * datasrc = cinfo->src; + + if (datasrc->bytes_in_buffer == 0) { + if (! (*datasrc->fill_input_buffer) (cinfo)) + ERREXIT(cinfo, JERR_CANT_SUSPEND); + } + datasrc->bytes_in_buffer--; + return GETJOCTET(*datasrc->next_input_byte++); +} + + +METHODDEF(boolean) +print_text_marker (j_decompress_ptr cinfo) +{ + boolean traceit = (cinfo->err->trace_level >= 1); + INT32 length; + unsigned int ch; + unsigned int lastch = 0; + + length = jpeg_getc(cinfo) << 8; + length += jpeg_getc(cinfo); + length -= 2; /* discount the length word itself */ + + if (traceit) { + if (cinfo->unread_marker == JPEG_COM) + fprintf(stderr, "Comment, length %ld:\n", (long) length); + else /* assume it is an APPn otherwise */ + fprintf(stderr, "APP%d, length %ld:\n", + cinfo->unread_marker - JPEG_APP0, (long) length); + } + + while (--length >= 0) { + ch = jpeg_getc(cinfo); + if (traceit) { + /* Emit the character in a readable form. + * Nonprintables are converted to \nnn form, + * while \ is converted to \\. + * Newlines in CR, CR/LF, or LF form will be printed as one newline. + */ + if (ch == '\r') { + fprintf(stderr, "\n"); + } else if (ch == '\n') { + if (lastch != '\r') + fprintf(stderr, "\n"); + } else if (ch == '\\') { + fprintf(stderr, "\\\\"); + } else if (isprint(ch)) { + putc(ch, stderr); + } else { + fprintf(stderr, "\\%03o", ch); + } + lastch = ch; + } + } + + if (traceit) + fprintf(stderr, "\n"); + + return TRUE; +} + + +/* + * The main program. + */ + +int +main (int argc, char **argv) +{ + struct jpeg_decompress_struct cinfo; + struct jpeg_error_mgr jerr; +#ifdef PROGRESS_REPORT + struct cdjpeg_progress_mgr progress; +#endif + int file_index; + djpeg_dest_ptr dest_mgr = NULL; + FILE * input_file; + FILE * output_file; + JDIMENSION num_scanlines; + + /* On Mac, fetch a command line. */ +#ifdef USE_CCOMMAND + argc = ccommand(&argv); +#endif + + progname = argv[0]; + if (progname == NULL || progname[0] == 0) + progname = "djpeg"; /* in case C library doesn't provide it */ + + /* Initialize the JPEG decompression object with default error handling. */ + cinfo.err = jpeg_std_error(&jerr); + jpeg_create_decompress(&cinfo); + /* Add some application-specific error messages (from cderror.h) */ + jerr.addon_message_table = cdjpeg_message_table; + jerr.first_addon_message = JMSG_FIRSTADDONCODE; + jerr.last_addon_message = JMSG_LASTADDONCODE; + + /* Insert custom marker processor for COM and APP12. + * APP12 is used by some digital camera makers for textual info, + * so we provide the ability to display it as text. + * If you like, additional APPn marker types can be selected for display, + * but don't try to override APP0 or APP14 this way (see libjpeg.doc). + */ + jpeg_set_marker_processor(&cinfo, JPEG_COM, print_text_marker); + jpeg_set_marker_processor(&cinfo, JPEG_APP0+12, print_text_marker); + + /* Now safe to enable signal catcher. */ +#ifdef NEED_SIGNAL_CATCHER + enable_signal_catcher((j_common_ptr) &cinfo); +#endif + + /* Scan command line to find file names. */ + /* It is convenient to use just one switch-parsing routine, but the switch + * values read here are ignored; we will rescan the switches after opening + * the input file. + * (Exception: tracing level set here controls verbosity for COM markers + * found during jpeg_read_header...) + */ + + file_index = parse_switches(&cinfo, argc, argv, 0, FALSE); + +#ifdef TWO_FILE_COMMANDLINE + /* Must have either -outfile switch or explicit output file name */ + if (outfilename == NULL) { + if (file_index != argc-2) { + fprintf(stderr, "%s: must name one input and one output file\n", + progname); + usage(); + } + outfilename = argv[file_index+1]; + } else { + if (file_index != argc-1) { + fprintf(stderr, "%s: must name one input and one output file\n", + progname); + usage(); + } + } +#else + /* Unix style: expect zero or one file name */ + if (file_index < argc-1) { + fprintf(stderr, "%s: only one input file\n", progname); + usage(); + } +#endif /* TWO_FILE_COMMANDLINE */ + + /* Open the input file. */ + if (file_index < argc) { + if ((input_file = fopen(argv[file_index], READ_BINARY)) == NULL) { + fprintf(stderr, "%s: can't open %s\n", progname, argv[file_index]); + exit(EXIT_FAILURE); + } + } else { + /* default input file is stdin */ + input_file = read_stdin(); + } + + /* Open the output file. */ + if (outfilename != NULL) { + if ((output_file = fopen(outfilename, WRITE_BINARY)) == NULL) { + fprintf(stderr, "%s: can't open %s\n", progname, outfilename); + exit(EXIT_FAILURE); + } + } else { + /* default output file is stdout */ + output_file = write_stdout(); + } + +#ifdef PROGRESS_REPORT + start_progress_monitor((j_common_ptr) &cinfo, &progress); +#endif + + /* Specify data source for decompression */ + jpeg_stdio_src(&cinfo, input_file); + + /* Read file header, set default decompression parameters */ + (void) jpeg_read_header(&cinfo, TRUE); + + /* Adjust default decompression parameters by re-parsing the options */ + file_index = parse_switches(&cinfo, argc, argv, 0, TRUE); + + /* Initialize the output module now to let it override any crucial + * option settings (for instance, GIF wants to force color quantization). + */ + switch (requested_fmt) { +#ifdef BMP_SUPPORTED + case FMT_BMP: + dest_mgr = jinit_write_bmp(&cinfo, FALSE); + break; + case FMT_OS2: + dest_mgr = jinit_write_bmp(&cinfo, TRUE); + break; +#endif +#ifdef GIF_SUPPORTED + case FMT_GIF: + dest_mgr = jinit_write_gif(&cinfo); + break; +#endif +#ifdef PPM_SUPPORTED + case FMT_PPM: + dest_mgr = jinit_write_ppm(&cinfo); + break; +#endif +#ifdef RLE_SUPPORTED + case FMT_RLE: + dest_mgr = jinit_write_rle(&cinfo); + break; +#endif +#ifdef TARGA_SUPPORTED + case FMT_TARGA: + dest_mgr = jinit_write_targa(&cinfo); + break; +#endif + default: + ERREXIT(&cinfo, JERR_UNSUPPORTED_FORMAT); + break; + } + dest_mgr->output_file = output_file; + + /* Start decompressor */ + (void) jpeg_start_decompress(&cinfo); + + /* Write output file header */ + (*dest_mgr->start_output) (&cinfo, dest_mgr); + + /* Process data */ + while (cinfo.output_scanline < cinfo.output_height) { + num_scanlines = jpeg_read_scanlines(&cinfo, dest_mgr->buffer, + dest_mgr->buffer_height); + (*dest_mgr->put_pixel_rows) (&cinfo, dest_mgr, num_scanlines); + } + +#ifdef PROGRESS_REPORT + /* Hack: count final pass as done in case finish_output does an extra pass. + * The library won't have updated completed_passes. + */ + progress.pub.completed_passes = progress.pub.total_passes; +#endif + + /* Finish decompression and release memory. + * I must do it in this order because output module has allocated memory + * of lifespan JPOOL_IMAGE; it needs to finish before releasing memory. + */ + (*dest_mgr->finish_output) (&cinfo, dest_mgr); + (void) jpeg_finish_decompress(&cinfo); + jpeg_destroy_decompress(&cinfo); + + /* Close files, if we opened them */ + if (input_file != stdin) + fclose(input_file); + if (output_file != stdout) + fclose(output_file); + +#ifdef PROGRESS_REPORT + end_progress_monitor((j_common_ptr) &cinfo); +#endif + + /* All done. */ + exit(jerr.num_warnings ? EXIT_WARNING : EXIT_SUCCESS); + return 0; /* suppress no-return-value warnings */ +} diff --git a/jpeg/example.c b/jpeg/example.c new file mode 100644 index 0000000..1d6f6cc --- /dev/null +++ b/jpeg/example.c @@ -0,0 +1,433 @@ +/* + * example.c + * + * This file illustrates how to use the IJG code as a subroutine library + * to read or write JPEG image files. You should look at this code in + * conjunction with the documentation file libjpeg.txt. + * + * This code will not do anything useful as-is, but it may be helpful as a + * skeleton for constructing routines that call the JPEG library. + * + * We present these routines in the same coding style used in the JPEG code + * (ANSI function definitions, etc); but you are of course free to code your + * routines in a different style if you prefer. + */ + +#include + +/* + * Include file for users of JPEG library. + * You will need to have included system headers that define at least + * the typedefs FILE and size_t before you can include jpeglib.h. + * (stdio.h is sufficient on ANSI-conforming systems.) + * You may also wish to include "jerror.h". + */ + +#include "jpeglib.h" + +/* + * is used for the optional error recovery mechanism shown in + * the second part of the example. + */ + +#include + + + +/******************** JPEG COMPRESSION SAMPLE INTERFACE *******************/ + +/* This half of the example shows how to feed data into the JPEG compressor. + * We present a minimal version that does not worry about refinements such + * as error recovery (the JPEG code will just exit() if it gets an error). + */ + + +/* + * IMAGE DATA FORMATS: + * + * The standard input image format is a rectangular array of pixels, with + * each pixel having the same number of "component" values (color channels). + * Each pixel row is an array of JSAMPLEs (which typically are unsigned chars). + * If you are working with color data, then the color values for each pixel + * must be adjacent in the row; for example, R,G,B,R,G,B,R,G,B,... for 24-bit + * RGB color. + * + * For this example, we'll assume that this data structure matches the way + * our application has stored the image in memory, so we can just pass a + * pointer to our image buffer. In particular, let's say that the image is + * RGB color and is described by: + */ + +extern JSAMPLE * image_buffer; /* Points to large array of R,G,B-order data */ +extern int image_height; /* Number of rows in image */ +extern int image_width; /* Number of columns in image */ + + +/* + * Sample routine for JPEG compression. We assume that the target file name + * and a compression quality factor are passed in. + */ + +GLOBAL(void) +write_JPEG_file (char * filename, int quality) +{ + /* This struct contains the JPEG compression parameters and pointers to + * working space (which is allocated as needed by the JPEG library). + * It is possible to have several such structures, representing multiple + * compression/decompression processes, in existence at once. We refer + * to any one struct (and its associated working data) as a "JPEG object". + */ + struct jpeg_compress_struct cinfo; + /* This struct represents a JPEG error handler. It is declared separately + * because applications often want to supply a specialized error handler + * (see the second half of this file for an example). But here we just + * take the easy way out and use the standard error handler, which will + * print a message on stderr and call exit() if compression fails. + * Note that this struct must live as long as the main JPEG parameter + * struct, to avoid dangling-pointer problems. + */ + struct jpeg_error_mgr jerr; + /* More stuff */ + FILE * outfile; /* target file */ + JSAMPROW row_pointer[1]; /* pointer to JSAMPLE row[s] */ + int row_stride; /* physical row width in image buffer */ + + /* Step 1: allocate and initialize JPEG compression object */ + + /* We have to set up the error handler first, in case the initialization + * step fails. (Unlikely, but it could happen if you are out of memory.) + * This routine fills in the contents of struct jerr, and returns jerr's + * address which we place into the link field in cinfo. + */ + cinfo.err = jpeg_std_error(&jerr); + /* Now we can initialize the JPEG compression object. */ + jpeg_create_compress(&cinfo); + + /* Step 2: specify data destination (eg, a file) */ + /* Note: steps 2 and 3 can be done in either order. */ + + /* Here we use the library-supplied code to send compressed data to a + * stdio stream. You can also write your own code to do something else. + * VERY IMPORTANT: use "b" option to fopen() if you are on a machine that + * requires it in order to write binary files. + */ + if ((outfile = fopen(filename, "wb")) == NULL) { + fprintf(stderr, "can't open %s\n", filename); + exit(1); + } + jpeg_stdio_dest(&cinfo, outfile); + + /* Step 3: set parameters for compression */ + + /* First we supply a description of the input image. + * Four fields of the cinfo struct must be filled in: + */ + cinfo.image_width = image_width; /* image width and height, in pixels */ + cinfo.image_height = image_height; + cinfo.input_components = 3; /* # of color components per pixel */ + cinfo.in_color_space = JCS_RGB; /* colorspace of input image */ + /* Now use the library's routine to set default compression parameters. + * (You must set at least cinfo.in_color_space before calling this, + * since the defaults depend on the source color space.) + */ + jpeg_set_defaults(&cinfo); + /* Now you can set any non-default parameters you wish to. + * Here we just illustrate the use of quality (quantization table) scaling: + */ + jpeg_set_quality(&cinfo, quality, TRUE /* limit to baseline-JPEG values */); + + /* Step 4: Start compressor */ + + /* TRUE ensures that we will write a complete interchange-JPEG file. + * Pass TRUE unless you are very sure of what you're doing. + */ + jpeg_start_compress(&cinfo, TRUE); + + /* Step 5: while (scan lines remain to be written) */ + /* jpeg_write_scanlines(...); */ + + /* Here we use the library's state variable cinfo.next_scanline as the + * loop counter, so that we don't have to keep track ourselves. + * To keep things simple, we pass one scanline per call; you can pass + * more if you wish, though. + */ + row_stride = image_width * 3; /* JSAMPLEs per row in image_buffer */ + + while (cinfo.next_scanline < cinfo.image_height) { + /* jpeg_write_scanlines expects an array of pointers to scanlines. + * Here the array is only one element long, but you could pass + * more than one scanline at a time if that's more convenient. + */ + row_pointer[0] = & image_buffer[cinfo.next_scanline * row_stride]; + (void) jpeg_write_scanlines(&cinfo, row_pointer, 1); + } + + /* Step 6: Finish compression */ + + jpeg_finish_compress(&cinfo); + /* After finish_compress, we can close the output file. */ + fclose(outfile); + + /* Step 7: release JPEG compression object */ + + /* This is an important step since it will release a good deal of memory. */ + jpeg_destroy_compress(&cinfo); + + /* And we're done! */ +} + + +/* + * SOME FINE POINTS: + * + * In the above loop, we ignored the return value of jpeg_write_scanlines, + * which is the number of scanlines actually written. We could get away + * with this because we were only relying on the value of cinfo.next_scanline, + * which will be incremented correctly. If you maintain additional loop + * variables then you should be careful to increment them properly. + * Actually, for output to a stdio stream you needn't worry, because + * then jpeg_write_scanlines will write all the lines passed (or else exit + * with a fatal error). Partial writes can only occur if you use a data + * destination module that can demand suspension of the compressor. + * (If you don't know what that's for, you don't need it.) + * + * If the compressor requires full-image buffers (for entropy-coding + * optimization or a multi-scan JPEG file), it will create temporary + * files for anything that doesn't fit within the maximum-memory setting. + * (Note that temp files are NOT needed if you use the default parameters.) + * On some systems you may need to set up a signal handler to ensure that + * temporary files are deleted if the program is interrupted. See libjpeg.txt. + * + * Scanlines MUST be supplied in top-to-bottom order if you want your JPEG + * files to be compatible with everyone else's. If you cannot readily read + * your data in that order, you'll need an intermediate array to hold the + * image. See rdtarga.c or rdbmp.c for examples of handling bottom-to-top + * source data using the JPEG code's internal virtual-array mechanisms. + */ + + + +/******************** JPEG DECOMPRESSION SAMPLE INTERFACE *******************/ + +/* This half of the example shows how to read data from the JPEG decompressor. + * It's a bit more refined than the above, in that we show: + * (a) how to modify the JPEG library's standard error-reporting behavior; + * (b) how to allocate workspace using the library's memory manager. + * + * Just to make this example a little different from the first one, we'll + * assume that we do not intend to put the whole image into an in-memory + * buffer, but to send it line-by-line someplace else. We need a one- + * scanline-high JSAMPLE array as a work buffer, and we will let the JPEG + * memory manager allocate it for us. This approach is actually quite useful + * because we don't need to remember to deallocate the buffer separately: it + * will go away automatically when the JPEG object is cleaned up. + */ + + +/* + * ERROR HANDLING: + * + * The JPEG library's standard error handler (jerror.c) is divided into + * several "methods" which you can override individually. This lets you + * adjust the behavior without duplicating a lot of code, which you might + * have to update with each future release. + * + * Our example here shows how to override the "error_exit" method so that + * control is returned to the library's caller when a fatal error occurs, + * rather than calling exit() as the standard error_exit method does. + * + * We use C's setjmp/longjmp facility to return control. This means that the + * routine which calls the JPEG library must first execute a setjmp() call to + * establish the return point. We want the replacement error_exit to do a + * longjmp(). But we need to make the setjmp buffer accessible to the + * error_exit routine. To do this, we make a private extension of the + * standard JPEG error handler object. (If we were using C++, we'd say we + * were making a subclass of the regular error handler.) + * + * Here's the extended error handler struct: + */ + +struct my_error_mgr { + struct jpeg_error_mgr pub; /* "public" fields */ + + jmp_buf setjmp_buffer; /* for return to caller */ +}; + +typedef struct my_error_mgr * my_error_ptr; + +/* + * Here's the routine that will replace the standard error_exit method: + */ + +METHODDEF(void) +my_error_exit (j_common_ptr cinfo) +{ + /* cinfo->err really points to a my_error_mgr struct, so coerce pointer */ + my_error_ptr myerr = (my_error_ptr) cinfo->err; + + /* Always display the message. */ + /* We could postpone this until after returning, if we chose. */ + (*cinfo->err->output_message) (cinfo); + + /* Return control to the setjmp point */ + longjmp(myerr->setjmp_buffer, 1); +} + + +/* + * Sample routine for JPEG decompression. We assume that the source file name + * is passed in. We want to return 1 on success, 0 on error. + */ + + +GLOBAL(int) +read_JPEG_file (char * filename) +{ + /* This struct contains the JPEG decompression parameters and pointers to + * working space (which is allocated as needed by the JPEG library). + */ + struct jpeg_decompress_struct cinfo; + /* We use our private extension JPEG error handler. + * Note that this struct must live as long as the main JPEG parameter + * struct, to avoid dangling-pointer problems. + */ + struct my_error_mgr jerr; + /* More stuff */ + FILE * infile; /* source file */ + JSAMPARRAY buffer; /* Output row buffer */ + int row_stride; /* physical row width in output buffer */ + + /* In this example we want to open the input file before doing anything else, + * so that the setjmp() error recovery below can assume the file is open. + * VERY IMPORTANT: use "b" option to fopen() if you are on a machine that + * requires it in order to read binary files. + */ + + if ((infile = fopen(filename, "rb")) == NULL) { + fprintf(stderr, "can't open %s\n", filename); + return 0; + } + + /* Step 1: allocate and initialize JPEG decompression object */ + + /* We set up the normal JPEG error routines, then override error_exit. */ + cinfo.err = jpeg_std_error(&jerr.pub); + jerr.pub.error_exit = my_error_exit; + /* Establish the setjmp return context for my_error_exit to use. */ + if (setjmp(jerr.setjmp_buffer)) { + /* If we get here, the JPEG code has signaled an error. + * We need to clean up the JPEG object, close the input file, and return. + */ + jpeg_destroy_decompress(&cinfo); + fclose(infile); + return 0; + } + /* Now we can initialize the JPEG decompression object. */ + jpeg_create_decompress(&cinfo); + + /* Step 2: specify data source (eg, a file) */ + + jpeg_stdio_src(&cinfo, infile); + + /* Step 3: read file parameters with jpeg_read_header() */ + + (void) jpeg_read_header(&cinfo, TRUE); + /* We can ignore the return value from jpeg_read_header since + * (a) suspension is not possible with the stdio data source, and + * (b) we passed TRUE to reject a tables-only JPEG file as an error. + * See libjpeg.txt for more info. + */ + + /* Step 4: set parameters for decompression */ + + /* In this example, we don't need to change any of the defaults set by + * jpeg_read_header(), so we do nothing here. + */ + + /* Step 5: Start decompressor */ + + (void) jpeg_start_decompress(&cinfo); + /* We can ignore the return value since suspension is not possible + * with the stdio data source. + */ + + /* We may need to do some setup of our own at this point before reading + * the data. After jpeg_start_decompress() we have the correct scaled + * output image dimensions available, as well as the output colormap + * if we asked for color quantization. + * In this example, we need to make an output work buffer of the right size. + */ + /* JSAMPLEs per row in output buffer */ + row_stride = cinfo.output_width * cinfo.output_components; + /* Make a one-row-high sample array that will go away when done with image */ + buffer = (*cinfo.mem->alloc_sarray) + ((j_common_ptr) &cinfo, JPOOL_IMAGE, row_stride, 1); + + /* Step 6: while (scan lines remain to be read) */ + /* jpeg_read_scanlines(...); */ + + /* Here we use the library's state variable cinfo.output_scanline as the + * loop counter, so that we don't have to keep track ourselves. + */ + while (cinfo.output_scanline < cinfo.output_height) { + /* jpeg_read_scanlines expects an array of pointers to scanlines. + * Here the array is only one element long, but you could ask for + * more than one scanline at a time if that's more convenient. + */ + (void) jpeg_read_scanlines(&cinfo, buffer, 1); + /* Assume put_scanline_someplace wants a pointer and sample count. */ + put_scanline_someplace(buffer[0], row_stride); + } + + /* Step 7: Finish decompression */ + + (void) jpeg_finish_decompress(&cinfo); + /* We can ignore the return value since suspension is not possible + * with the stdio data source. + */ + + /* Step 8: Release JPEG decompression object */ + + /* This is an important step since it will release a good deal of memory. */ + jpeg_destroy_decompress(&cinfo); + + /* After finish_decompress, we can close the input file. + * Here we postpone it until after no more JPEG errors are possible, + * so as to simplify the setjmp error logic above. (Actually, I don't + * think that jpeg_destroy can do an error exit, but why assume anything...) + */ + fclose(infile); + + /* At this point you may want to check to see whether any corrupt-data + * warnings occurred (test whether jerr.pub.num_warnings is nonzero). + */ + + /* And we're done! */ + return 1; +} + + +/* + * SOME FINE POINTS: + * + * In the above code, we ignored the return value of jpeg_read_scanlines, + * which is the number of scanlines actually read. We could get away with + * this because we asked for only one line at a time and we weren't using + * a suspending data source. See libjpeg.txt for more info. + * + * We cheated a bit by calling alloc_sarray() after jpeg_start_decompress(); + * we should have done it beforehand to ensure that the space would be + * counted against the JPEG max_memory setting. In some systems the above + * code would risk an out-of-memory error. However, in general we don't + * know the output image dimensions before jpeg_start_decompress(), unless we + * call jpeg_calc_output_dimensions(). See libjpeg.txt for more about this. + * + * Scanlines are returned in the same order as they appear in the JPEG file, + * which is standardly top-to-bottom. If you must emit data bottom-to-top, + * you can use one of the virtual arrays provided by the JPEG memory manager + * to invert the data. See wrbmp.c for an example. + * + * As with compression, some operating modes may require temporary files. + * On some systems you may need to set up a signal handler to ensure that + * temporary files are deleted if the program is interrupted. See libjpeg.txt. + */ diff --git a/jpeg/filelist.txt b/jpeg/filelist.txt new file mode 100644 index 0000000..7e05386 --- /dev/null +++ b/jpeg/filelist.txt @@ -0,0 +1,215 @@ +IJG JPEG LIBRARY: FILE LIST + +Copyright (C) 1994-2009, Thomas G. Lane, Guido Vollbeding. +This file is part of the Independent JPEG Group's software. +For conditions of distribution and use, see the accompanying README file. + + +Here is a road map to the files in the IJG JPEG distribution. The +distribution includes the JPEG library proper, plus two application +programs ("cjpeg" and "djpeg") which use the library to convert JPEG +files to and from some other popular image formats. A third application +"jpegtran" uses the library to do lossless conversion between different +variants of JPEG. There are also two stand-alone applications, +"rdjpgcom" and "wrjpgcom". + + +THE JPEG LIBRARY +================ + +Include files: + +jpeglib.h JPEG library's exported data and function declarations. +jconfig.h Configuration declarations. Note: this file is not present + in the distribution; it is generated during installation. +jmorecfg.h Additional configuration declarations; need not be changed + for a standard installation. +jerror.h Declares JPEG library's error and trace message codes. +jinclude.h Central include file used by all IJG .c files to reference + system include files. +jpegint.h JPEG library's internal data structures. +jdct.h Private declarations for forward & reverse DCT subsystems. +jmemsys.h Private declarations for memory management subsystem. +jversion.h Version information. + +Applications using the library should include jpeglib.h (which in turn +includes jconfig.h and jmorecfg.h). Optionally, jerror.h may be included +if the application needs to reference individual JPEG error codes. The +other include files are intended for internal use and would not normally +be included by an application program. (cjpeg/djpeg/etc do use jinclude.h, +since its function is to improve portability of the whole IJG distribution. +Most other applications will directly include the system include files they +want, and hence won't need jinclude.h.) + + +C source code files: + +These files contain most of the functions intended to be called directly by +an application program: + +jcapimin.c Application program interface: core routines for compression. +jcapistd.c Application program interface: standard compression. +jdapimin.c Application program interface: core routines for decompression. +jdapistd.c Application program interface: standard decompression. +jcomapi.c Application program interface routines common to compression + and decompression. +jcparam.c Compression parameter setting helper routines. +jctrans.c API and library routines for transcoding compression. +jdtrans.c API and library routines for transcoding decompression. + +Compression side of the library: + +jcinit.c Initialization: determines which other modules to use. +jcmaster.c Master control: setup and inter-pass sequencing logic. +jcmainct.c Main buffer controller (preprocessor => JPEG compressor). +jcprepct.c Preprocessor buffer controller. +jccoefct.c Buffer controller for DCT coefficient buffer. +jccolor.c Color space conversion. +jcsample.c Downsampling. +jcdctmgr.c DCT manager (DCT implementation selection & control). +jfdctint.c Forward DCT using slow-but-accurate integer method. +jfdctfst.c Forward DCT using faster, less accurate integer method. +jfdctflt.c Forward DCT using floating-point arithmetic. +jchuff.c Huffman entropy coding. +jcarith.c Arithmetic entropy coding. +jcmarker.c JPEG marker writing. +jdatadst.c Data destination managers for memory and stdio output. + +Decompression side of the library: + +jdmaster.c Master control: determines which other modules to use. +jdinput.c Input controller: controls input processing modules. +jdmainct.c Main buffer controller (JPEG decompressor => postprocessor). +jdcoefct.c Buffer controller for DCT coefficient buffer. +jdpostct.c Postprocessor buffer controller. +jdmarker.c JPEG marker reading. +jdhuff.c Huffman entropy decoding. +jdarith.c Arithmetic entropy decoding. +jddctmgr.c IDCT manager (IDCT implementation selection & control). +jidctint.c Inverse DCT using slow-but-accurate integer method. +jidctfst.c Inverse DCT using faster, less accurate integer method. +jidctflt.c Inverse DCT using floating-point arithmetic. +jdsample.c Upsampling. +jdcolor.c Color space conversion. +jdmerge.c Merged upsampling/color conversion (faster, lower quality). +jquant1.c One-pass color quantization using a fixed-spacing colormap. +jquant2.c Two-pass color quantization using a custom-generated colormap. + Also handles one-pass quantization to an externally given map. +jdatasrc.c Data source managers for memory and stdio input. + +Support files for both compression and decompression: + +jaricom.c Tables for common use in arithmetic entropy encoding and + decoding routines. +jerror.c Standard error handling routines (application replaceable). +jmemmgr.c System-independent (more or less) memory management code. +jutils.c Miscellaneous utility routines. + +jmemmgr.c relies on a system-dependent memory management module. The IJG +distribution includes the following implementations of the system-dependent +module: + +jmemnobs.c "No backing store": assumes adequate virtual memory exists. +jmemansi.c Makes temporary files with ANSI-standard routine tmpfile(). +jmemname.c Makes temporary files with program-generated file names. +jmemdos.c Custom implementation for MS-DOS (16-bit environment only): + can use extended and expanded memory as well as temp files. +jmemmac.c Custom implementation for Apple Macintosh. + +Exactly one of the system-dependent modules should be configured into an +installed JPEG library (see install.txt for hints about which one to use). +On unusual systems you may find it worthwhile to make a special +system-dependent memory manager. + + +Non-C source code files: + +jmemdosa.asm 80x86 assembly code support for jmemdos.c; used only in + MS-DOS-specific configurations of the JPEG library. + + +CJPEG/DJPEG/JPEGTRAN +==================== + +Include files: + +cdjpeg.h Declarations shared by cjpeg/djpeg/jpegtran modules. +cderror.h Additional error and trace message codes for cjpeg et al. +transupp.h Declarations for jpegtran support routines in transupp.c. + +C source code files: + +cjpeg.c Main program for cjpeg. +djpeg.c Main program for djpeg. +jpegtran.c Main program for jpegtran. +cdjpeg.c Utility routines used by all three programs. +rdcolmap.c Code to read a colormap file for djpeg's "-map" switch. +rdswitch.c Code to process some of cjpeg's more complex switches. + Also used by jpegtran. +transupp.c Support code for jpegtran: lossless image manipulations. + +Image file reader modules for cjpeg: + +rdbmp.c BMP file input. +rdgif.c GIF file input (now just a stub). +rdppm.c PPM/PGM file input. +rdrle.c Utah RLE file input. +rdtarga.c Targa file input. + +Image file writer modules for djpeg: + +wrbmp.c BMP file output. +wrgif.c GIF file output (a mere shadow of its former self). +wrppm.c PPM/PGM file output. +wrrle.c Utah RLE file output. +wrtarga.c Targa file output. + + +RDJPGCOM/WRJPGCOM +================= + +C source code files: + +rdjpgcom.c Stand-alone rdjpgcom application. +wrjpgcom.c Stand-alone wrjpgcom application. + +These programs do not depend on the IJG library. They do use +jconfig.h and jinclude.h, only to improve portability. + + +ADDITIONAL FILES +================ + +Documentation (see README for a guide to the documentation files): + +README Master documentation file. +*.txt Other documentation files. +*.1 Documentation in Unix man page format. +change.log Version-to-version change highlights. +example.c Sample code for calling JPEG library. + +Configuration/installation files and programs (see install.txt for more info): + +configure Unix shell script to perform automatic configuration. +configure.ac Source file for use with Autoconf to generate configure. +ltmain.sh Support scripts for configure (from GNU libtool). +config.guess +config.sub +depcomp +missing +install-sh Install shell script for those Unix systems lacking one. +Makefile.in Makefile input for configure. +Makefile.am Source file for use with Automake to generate Makefile.in. +ckconfig.c Program to generate jconfig.h on non-Unix systems. +jconfig.txt Template for making jconfig.h by hand. +mak*.* Sample makefiles for particular systems. +jconfig.* Sample jconfig.h for particular systems. +libjpeg.map Script to generate shared library with versioned symbols. +aclocal.m4 M4 macro definitions for use with Autoconf. +ansi2knr.c De-ANSIfier for pre-ANSI C compilers (courtesy of + L. Peter Deutsch and Aladdin Enterprises). + +Test files (see install.txt for test procedure): + +test*.* Source and comparison files for confidence test. + These are binary image files, NOT text files. diff --git a/jpeg/install-sh b/jpeg/install-sh new file mode 100644 index 0000000..a9244eb --- /dev/null +++ b/jpeg/install-sh @@ -0,0 +1,527 @@ +#!/bin/sh +# install - install a program, script, or datafile + +scriptversion=2011-01-19.21; # UTC + +# This originates from X11R5 (mit/util/scripts/install.sh), which was +# later released in X11R6 (xc/config/util/install.sh) with the +# following copyright and license. +# +# Copyright (C) 1994 X Consortium +# +# Permission is hereby granted, free of charge, to any person obtaining a copy +# of this software and associated documentation files (the "Software"), to +# deal in the Software without restriction, including without limitation the +# rights to use, copy, modify, merge, publish, distribute, sublicense, and/or +# sell copies of the Software, and to permit persons to whom the Software is +# furnished to do so, subject to the following conditions: +# +# The above copyright notice and this permission notice shall be included in +# all copies or substantial portions of the Software. +# +# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +# X CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN +# AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNEC- +# TION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. +# +# Except as contained in this notice, the name of the X Consortium shall not +# be used in advertising or otherwise to promote the sale, use or other deal- +# ings in this Software without prior written authorization from the X Consor- +# tium. +# +# +# FSF changes to this file are in the public domain. +# +# Calling this script install-sh is preferred over install.sh, to prevent +# `make' implicit rules from creating a file called install from it +# when there is no Makefile. +# +# This script is compatible with the BSD install script, but was written +# from scratch. + +nl=' +' +IFS=" "" $nl" + +# set DOITPROG to echo to test this script + +# Don't use :- since 4.3BSD and earlier shells don't like it. +doit=${DOITPROG-} +if test -z "$doit"; then + doit_exec=exec +else + doit_exec=$doit +fi + +# Put in absolute file names if you don't have them in your path; +# or use environment vars. + +chgrpprog=${CHGRPPROG-chgrp} +chmodprog=${CHMODPROG-chmod} +chownprog=${CHOWNPROG-chown} +cmpprog=${CMPPROG-cmp} +cpprog=${CPPROG-cp} +mkdirprog=${MKDIRPROG-mkdir} +mvprog=${MVPROG-mv} +rmprog=${RMPROG-rm} +stripprog=${STRIPPROG-strip} + +posix_glob='?' +initialize_posix_glob=' + test "$posix_glob" != "?" || { + if (set -f) 2>/dev/null; then + posix_glob= + else + posix_glob=: + fi + } +' + +posix_mkdir= + +# Desired mode of installed file. +mode=0755 + +chgrpcmd= +chmodcmd=$chmodprog +chowncmd= +mvcmd=$mvprog +rmcmd="$rmprog -f" +stripcmd= + +src= +dst= +dir_arg= +dst_arg= + +copy_on_change=false +no_target_directory= + +usage="\ +Usage: $0 [OPTION]... [-T] SRCFILE DSTFILE + or: $0 [OPTION]... SRCFILES... DIRECTORY + or: $0 [OPTION]... -t DIRECTORY SRCFILES... + or: $0 [OPTION]... -d DIRECTORIES... + +In the 1st form, copy SRCFILE to DSTFILE. +In the 2nd and 3rd, copy all SRCFILES to DIRECTORY. +In the 4th, create DIRECTORIES. + +Options: + --help display this help and exit. + --version display version info and exit. + + -c (ignored) + -C install only if different (preserve the last data modification time) + -d create directories instead of installing files. + -g GROUP $chgrpprog installed files to GROUP. + -m MODE $chmodprog installed files to MODE. + -o USER $chownprog installed files to USER. + -s $stripprog installed files. + -t DIRECTORY install into DIRECTORY. + -T report an error if DSTFILE is a directory. + +Environment variables override the default commands: + CHGRPPROG CHMODPROG CHOWNPROG CMPPROG CPPROG MKDIRPROG MVPROG + RMPROG STRIPPROG +" + +while test $# -ne 0; do + case $1 in + -c) ;; + + -C) copy_on_change=true;; + + -d) dir_arg=true;; + + -g) chgrpcmd="$chgrpprog $2" + shift;; + + --help) echo "$usage"; exit $?;; + + -m) mode=$2 + case $mode in + *' '* | *' '* | *' +'* | *'*'* | *'?'* | *'['*) + echo "$0: invalid mode: $mode" >&2 + exit 1;; + esac + shift;; + + -o) chowncmd="$chownprog $2" + shift;; + + -s) stripcmd=$stripprog;; + + -t) dst_arg=$2 + # Protect names problematic for `test' and other utilities. + case $dst_arg in + -* | [=\(\)!]) dst_arg=./$dst_arg;; + esac + shift;; + + -T) no_target_directory=true;; + + --version) echo "$0 $scriptversion"; exit $?;; + + --) shift + break;; + + -*) echo "$0: invalid option: $1" >&2 + exit 1;; + + *) break;; + esac + shift +done + +if test $# -ne 0 && test -z "$dir_arg$dst_arg"; then + # When -d is used, all remaining arguments are directories to create. + # When -t is used, the destination is already specified. + # Otherwise, the last argument is the destination. Remove it from $@. + for arg + do + if test -n "$dst_arg"; then + # $@ is not empty: it contains at least $arg. + set fnord "$@" "$dst_arg" + shift # fnord + fi + shift # arg + dst_arg=$arg + # Protect names problematic for `test' and other utilities. + case $dst_arg in + -* | [=\(\)!]) dst_arg=./$dst_arg;; + esac + done +fi + +if test $# -eq 0; then + if test -z "$dir_arg"; then + echo "$0: no input file specified." >&2 + exit 1 + fi + # It's OK to call `install-sh -d' without argument. + # This can happen when creating conditional directories. + exit 0 +fi + +if test -z "$dir_arg"; then + do_exit='(exit $ret); exit $ret' + trap "ret=129; $do_exit" 1 + trap "ret=130; $do_exit" 2 + trap "ret=141; $do_exit" 13 + trap "ret=143; $do_exit" 15 + + # Set umask so as not to create temps with too-generous modes. + # However, 'strip' requires both read and write access to temps. + case $mode in + # Optimize common cases. + *644) cp_umask=133;; + *755) cp_umask=22;; + + *[0-7]) + if test -z "$stripcmd"; then + u_plus_rw= + else + u_plus_rw='% 200' + fi + cp_umask=`expr '(' 777 - $mode % 1000 ')' $u_plus_rw`;; + *) + if test -z "$stripcmd"; then + u_plus_rw= + else + u_plus_rw=,u+rw + fi + cp_umask=$mode$u_plus_rw;; + esac +fi + +for src +do + # Protect names problematic for `test' and other utilities. + case $src in + -* | [=\(\)!]) src=./$src;; + esac + + if test -n "$dir_arg"; then + dst=$src + dstdir=$dst + test -d "$dstdir" + dstdir_status=$? + else + + # Waiting for this to be detected by the "$cpprog $src $dsttmp" command + # might cause directories to be created, which would be especially bad + # if $src (and thus $dsttmp) contains '*'. + if test ! -f "$src" && test ! -d "$src"; then + echo "$0: $src does not exist." >&2 + exit 1 + fi + + if test -z "$dst_arg"; then + echo "$0: no destination specified." >&2 + exit 1 + fi + dst=$dst_arg + + # If destination is a directory, append the input filename; won't work + # if double slashes aren't ignored. + if test -d "$dst"; then + if test -n "$no_target_directory"; then + echo "$0: $dst_arg: Is a directory" >&2 + exit 1 + fi + dstdir=$dst + dst=$dstdir/`basename "$src"` + dstdir_status=0 + else + # Prefer dirname, but fall back on a substitute if dirname fails. + dstdir=` + (dirname "$dst") 2>/dev/null || + expr X"$dst" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \ + X"$dst" : 'X\(//\)[^/]' \| \ + X"$dst" : 'X\(//\)$' \| \ + X"$dst" : 'X\(/\)' \| . 2>/dev/null || + echo X"$dst" | + sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{ + s//\1/ + q + } + /^X\(\/\/\)[^/].*/{ + s//\1/ + q + } + /^X\(\/\/\)$/{ + s//\1/ + q + } + /^X\(\/\).*/{ + s//\1/ + q + } + s/.*/./; q' + ` + + test -d "$dstdir" + dstdir_status=$? + fi + fi + + obsolete_mkdir_used=false + + if test $dstdir_status != 0; then + case $posix_mkdir in + '') + # Create intermediate dirs using mode 755 as modified by the umask. + # This is like FreeBSD 'install' as of 1997-10-28. + umask=`umask` + case $stripcmd.$umask in + # Optimize common cases. + *[2367][2367]) mkdir_umask=$umask;; + .*0[02][02] | .[02][02] | .[02]) mkdir_umask=22;; + + *[0-7]) + mkdir_umask=`expr $umask + 22 \ + - $umask % 100 % 40 + $umask % 20 \ + - $umask % 10 % 4 + $umask % 2 + `;; + *) mkdir_umask=$umask,go-w;; + esac + + # With -d, create the new directory with the user-specified mode. + # Otherwise, rely on $mkdir_umask. + if test -n "$dir_arg"; then + mkdir_mode=-m$mode + else + mkdir_mode= + fi + + posix_mkdir=false + case $umask in + *[123567][0-7][0-7]) + # POSIX mkdir -p sets u+wx bits regardless of umask, which + # is incompatible with FreeBSD 'install' when (umask & 300) != 0. + ;; + *) + tmpdir=${TMPDIR-/tmp}/ins$RANDOM-$$ + trap 'ret=$?; rmdir "$tmpdir/d" "$tmpdir" 2>/dev/null; exit $ret' 0 + + if (umask $mkdir_umask && + exec $mkdirprog $mkdir_mode -p -- "$tmpdir/d") >/dev/null 2>&1 + then + if test -z "$dir_arg" || { + # Check for POSIX incompatibilities with -m. + # HP-UX 11.23 and IRIX 6.5 mkdir -m -p sets group- or + # other-writeable bit of parent directory when it shouldn't. + # FreeBSD 6.1 mkdir -m -p sets mode of existing directory. + ls_ld_tmpdir=`ls -ld "$tmpdir"` + case $ls_ld_tmpdir in + d????-?r-*) different_mode=700;; + d????-?--*) different_mode=755;; + *) false;; + esac && + $mkdirprog -m$different_mode -p -- "$tmpdir" && { + ls_ld_tmpdir_1=`ls -ld "$tmpdir"` + test "$ls_ld_tmpdir" = "$ls_ld_tmpdir_1" + } + } + then posix_mkdir=: + fi + rmdir "$tmpdir/d" "$tmpdir" + else + # Remove any dirs left behind by ancient mkdir implementations. + rmdir ./$mkdir_mode ./-p ./-- 2>/dev/null + fi + trap '' 0;; + esac;; + esac + + if + $posix_mkdir && ( + umask $mkdir_umask && + $doit_exec $mkdirprog $mkdir_mode -p -- "$dstdir" + ) + then : + else + + # The umask is ridiculous, or mkdir does not conform to POSIX, + # or it failed possibly due to a race condition. Create the + # directory the slow way, step by step, checking for races as we go. + + case $dstdir in + /*) prefix='/';; + [-=\(\)!]*) prefix='./';; + *) prefix='';; + esac + + eval "$initialize_posix_glob" + + oIFS=$IFS + IFS=/ + $posix_glob set -f + set fnord $dstdir + shift + $posix_glob set +f + IFS=$oIFS + + prefixes= + + for d + do + test X"$d" = X && continue + + prefix=$prefix$d + if test -d "$prefix"; then + prefixes= + else + if $posix_mkdir; then + (umask=$mkdir_umask && + $doit_exec $mkdirprog $mkdir_mode -p -- "$dstdir") && break + # Don't fail if two instances are running concurrently. + test -d "$prefix" || exit 1 + else + case $prefix in + *\'*) qprefix=`echo "$prefix" | sed "s/'/'\\\\\\\\''/g"`;; + *) qprefix=$prefix;; + esac + prefixes="$prefixes '$qprefix'" + fi + fi + prefix=$prefix/ + done + + if test -n "$prefixes"; then + # Don't fail if two instances are running concurrently. + (umask $mkdir_umask && + eval "\$doit_exec \$mkdirprog $prefixes") || + test -d "$dstdir" || exit 1 + obsolete_mkdir_used=true + fi + fi + fi + + if test -n "$dir_arg"; then + { test -z "$chowncmd" || $doit $chowncmd "$dst"; } && + { test -z "$chgrpcmd" || $doit $chgrpcmd "$dst"; } && + { test "$obsolete_mkdir_used$chowncmd$chgrpcmd" = false || + test -z "$chmodcmd" || $doit $chmodcmd $mode "$dst"; } || exit 1 + else + + # Make a couple of temp file names in the proper directory. + dsttmp=$dstdir/_inst.$$_ + rmtmp=$dstdir/_rm.$$_ + + # Trap to clean up those temp files at exit. + trap 'ret=$?; rm -f "$dsttmp" "$rmtmp" && exit $ret' 0 + + # Copy the file name to the temp name. + (umask $cp_umask && $doit_exec $cpprog "$src" "$dsttmp") && + + # and set any options; do chmod last to preserve setuid bits. + # + # If any of these fail, we abort the whole thing. If we want to + # ignore errors from any of these, just make sure not to ignore + # errors from the above "$doit $cpprog $src $dsttmp" command. + # + { test -z "$chowncmd" || $doit $chowncmd "$dsttmp"; } && + { test -z "$chgrpcmd" || $doit $chgrpcmd "$dsttmp"; } && + { test -z "$stripcmd" || $doit $stripcmd "$dsttmp"; } && + { test -z "$chmodcmd" || $doit $chmodcmd $mode "$dsttmp"; } && + + # If -C, don't bother to copy if it wouldn't change the file. + if $copy_on_change && + old=`LC_ALL=C ls -dlL "$dst" 2>/dev/null` && + new=`LC_ALL=C ls -dlL "$dsttmp" 2>/dev/null` && + + eval "$initialize_posix_glob" && + $posix_glob set -f && + set X $old && old=:$2:$4:$5:$6 && + set X $new && new=:$2:$4:$5:$6 && + $posix_glob set +f && + + test "$old" = "$new" && + $cmpprog "$dst" "$dsttmp" >/dev/null 2>&1 + then + rm -f "$dsttmp" + else + # Rename the file to the real destination. + $doit $mvcmd -f "$dsttmp" "$dst" 2>/dev/null || + + # The rename failed, perhaps because mv can't rename something else + # to itself, or perhaps because mv is so ancient that it does not + # support -f. + { + # Now remove or move aside any old file at destination location. + # We try this two ways since rm can't unlink itself on some + # systems and the destination file might be busy for other + # reasons. In this case, the final cleanup might fail but the new + # file should still install successfully. + { + test ! -f "$dst" || + $doit $rmcmd -f "$dst" 2>/dev/null || + { $doit $mvcmd -f "$dst" "$rmtmp" 2>/dev/null && + { $doit $rmcmd -f "$rmtmp" 2>/dev/null; :; } + } || + { echo "$0: cannot unlink or rename $dst" >&2 + (exit 1); exit 1 + } + } && + + # Now rename the file to the real destination. + $doit $mvcmd "$dsttmp" "$dst" + } + fi || exit 1 + + trap '' 0 + fi +done + +# Local variables: +# eval: (add-hook 'write-file-hooks 'time-stamp) +# time-stamp-start: "scriptversion=" +# time-stamp-format: "%:y-%02m-%02d.%02H" +# time-stamp-time-zone: "UTC" +# time-stamp-end: "; # UTC" +# End: diff --git a/jpeg/install.txt b/jpeg/install.txt new file mode 100644 index 0000000..04bed91 --- /dev/null +++ b/jpeg/install.txt @@ -0,0 +1,1096 @@ +INSTALLATION INSTRUCTIONS for the Independent JPEG Group's JPEG software + +Copyright (C) 1991-2011, Thomas G. Lane, Guido Vollbeding. +This file is part of the Independent JPEG Group's software. +For conditions of distribution and use, see the accompanying README file. + + +This file explains how to configure and install the IJG software. We have +tried to make this software extremely portable and flexible, so that it can be +adapted to almost any environment. The downside of this decision is that the +installation process is complicated. We have provided shortcuts to simplify +the task on common systems. But in any case, you will need at least a little +familiarity with C programming and program build procedures for your system. + +If you are only using this software as part of a larger program, the larger +program's installation procedure may take care of configuring the IJG code. +For example, Ghostscript's installation script will configure the IJG code. +You don't need to read this file if you just want to compile Ghostscript. + +If you are on a Unix machine, you may not need to read this file at all. +Try doing + ./configure + make + make test +If that doesn't complain, do + make install +(better do "make -n install" first to see if the makefile will put the files +where you want them). Read further if you run into snags or want to customize +the code for your system. + + +TABLE OF CONTENTS +----------------- + +Before you start +Configuring the software: + using the automatic "configure" script + using one of the supplied jconfig and makefile files + by hand +Building the software +Testing the software +Installing the software +Optional stuff +Optimization +Hints for specific systems + + +BEFORE YOU START +================ + +Before installing the software you must unpack the distributed source code. +Since you are reading this file, you have probably already succeeded in this +task. However, there is a potential for error if you needed to convert the +files to the local standard text file format (for example, if you are on +MS-DOS you may have converted LF end-of-line to CR/LF). You must apply +such conversion to all the files EXCEPT those whose names begin with "test". +The test files contain binary data; if you change them in any way then the +self-test will give bad results. + +Please check the last section of this file to see if there are hints for the +specific machine or compiler you are using. + + +CONFIGURING THE SOFTWARE +======================== + +To configure the IJG code for your system, you need to create two files: + * jconfig.h: contains values for system-dependent #define symbols. + * Makefile: controls the compilation process. +(On a non-Unix machine, you may create "project files" or some other +substitute for a Makefile. jconfig.h is needed in any environment.) + +We provide three different ways to generate these files: + * On a Unix system, you can just run the "configure" script. + * We provide sample jconfig files and makefiles for popular machines; + if your machine matches one of the samples, just copy the right sample + files to jconfig.h and Makefile. + * If all else fails, read the instructions below and make your own files. + + +Configuring the software using the automatic "configure" script +--------------------------------------------------------------- + +If you are on a Unix machine, you can just type + ./configure +and let the configure script construct appropriate configuration files. +If you're using "csh" on an old version of System V, you might need to type + sh configure +instead to prevent csh from trying to execute configure itself. +Expect configure to run for a few minutes, particularly on slower machines; +it works by compiling a series of test programs. + +Configure was created with GNU Autoconf and it follows the usual conventions +for GNU configure scripts. It makes a few assumptions that you may want to +override. You can do this by providing optional switches to configure: + +* Configure will build both static and shared libraries, if possible. +If you want to build libjpeg only as a static library, say + ./configure --disable-shared +If you want to build libjpeg only as a shared library, say + ./configure --disable-static +Configure uses GNU libtool to take care of system-dependent shared library +building methods. + +* Configure will use gcc (GNU C compiler) if it's available, otherwise cc. +To force a particular compiler to be selected, use the CC option, for example + ./configure CC='cc' +The same method can be used to include any unusual compiler switches. +For example, on HP-UX you probably want to say + ./configure CC='cc -Aa' +to get HP's compiler to run in ANSI mode. + +* The default CFLAGS setting is "-g" for non-gcc compilers, "-g -O2" for gcc. +You can override this by saying, for example, + ./configure CFLAGS='-O2' +if you want to compile without debugging support. + +* Configure will set up the makefile so that "make install" will install files +into /usr/local/bin, /usr/local/man, etc. You can specify an installation +prefix other than "/usr/local" by giving configure the option "--prefix=PATH". + +* If you don't have a lot of swap space, you may need to enable the IJG +software's internal virtual memory mechanism. To do this, give the option +"--enable-maxmem=N" where N is the default maxmemory limit in megabytes. +This is discussed in more detail under "Selecting a memory manager", below. +You probably don't need to worry about this on reasonably-sized Unix machines, +unless you plan to process very large images. + +Configure has some other features that are useful if you are cross-compiling +or working in a network of multiple machine types; but if you need those +features, you probably already know how to use them. + + +Configuring the software using one of the supplied jconfig and makefile files +----------------------------------------------------------------------------- + +If you have one of these systems, you can just use the provided configuration +files: + +Makefile jconfig file System and/or compiler + +makefile.manx jconfig.manx Amiga, Manx Aztec C +makefile.sas jconfig.sas Amiga, SAS C +makeproj.mac jconfig.mac Apple Macintosh, Metrowerks CodeWarrior +mak*jpeg.st jconfig.st Atari ST/STE/TT, Pure C or Turbo C +makefile.bcc jconfig.bcc MS-DOS or OS/2, Borland C +makefile.dj jconfig.dj MS-DOS, DJGPP (Delorie's port of GNU C) +makefile.mc6 jconfig.mc6 MS-DOS, Microsoft C (16-bit only) +makefile.wat jconfig.wat MS-DOS, OS/2, or Windows NT, Watcom C +makefile.vc jconfig.vc Windows NT/95, MS Visual C++ +make*.vc6 jconfig.vc Windows NT/95, MS Visual C++ 6 +make*.v10 jconfig.vc Windows NT/95, MS Visual C++ 2010 (v10) +makefile.mms jconfig.vms Digital VMS, with MMS software +makefile.vms jconfig.vms Digital VMS, without MMS software + +Copy the proper jconfig file to jconfig.h and the makefile to Makefile (or +whatever your system uses as the standard makefile name). For more info see +the appropriate system-specific hints section near the end of this file. + + +Configuring the software by hand +-------------------------------- + +First, generate a jconfig.h file. If you are moderately familiar with C, +the comments in jconfig.txt should be enough information to do this; just +copy jconfig.txt to jconfig.h and edit it appropriately. Otherwise, you may +prefer to use the ckconfig.c program. You will need to compile and execute +ckconfig.c by hand --- we hope you know at least enough to do that. +ckconfig.c may not compile the first try (in fact, the whole idea is for it +to fail if anything is going to). If you get compile errors, fix them by +editing ckconfig.c according to the directions given in ckconfig.c. Once +you get it to run, it will write a suitable jconfig.h file, and will also +print out some advice about which makefile to use. + +You may also want to look at the canned jconfig files, if there is one for a +system similar to yours. + +Second, select a makefile and copy it to Makefile (or whatever your system +uses as the standard makefile name). The most generic makefiles we provide +are + makefile.ansi: if your C compiler supports function prototypes + makefile.unix: if not. +(You have function prototypes if ckconfig.c put "#define HAVE_PROTOTYPES" +in jconfig.h.) You may want to start from one of the other makefiles if +there is one for a system similar to yours. + +Look over the selected Makefile and adjust options as needed. In particular +you may want to change the CC and CFLAGS definitions. For instance, if you +are using GCC, set CC=gcc. If you had to use any compiler switches to get +ckconfig.c to work, make sure the same switches are in CFLAGS. + +If you are on a system that doesn't use makefiles, you'll need to set up +project files (or whatever you do use) to compile all the source files and +link them into executable files cjpeg, djpeg, jpegtran, rdjpgcom, and wrjpgcom. +See the file lists in any of the makefiles to find out which files go into +each program. Note that the provided makefiles all make a "library" file +libjpeg first, but you don't have to do that if you don't want to; the file +lists identify which source files are actually needed for compression, +decompression, or both. As a last resort, you can make a batch script that +just compiles everything and links it all together; makefile.vms is an example +of this (it's for VMS systems that have no make-like utility). + +Here are comments about some specific configuration decisions you'll +need to make: + +Command line style +------------------ + +These programs can use a Unix-like command line style which supports +redirection and piping, like this: + cjpeg inputfile >outputfile + cjpeg outputfile + source program | cjpeg >outputfile +The simpler "two file" command line style is just + cjpeg inputfile outputfile +You may prefer the two-file style, particularly if you don't have pipes. + +You MUST use two-file style on any system that doesn't cope well with binary +data fed through stdin/stdout; this is true for some MS-DOS compilers, for +example. If you're not on a Unix system, it's safest to assume you need +two-file style. (But if your compiler provides either the Posix-standard +fdopen() library routine or a Microsoft-compatible setmode() routine, you +can safely use the Unix command line style, by defining USE_FDOPEN or +USE_SETMODE respectively.) + +To use the two-file style, make jconfig.h say "#define TWO_FILE_COMMANDLINE". + +Selecting a memory manager +-------------------------- + +The IJG code is capable of working on images that are too big to fit in main +memory; data is swapped out to temporary files as necessary. However, the +code to do this is rather system-dependent. We provide five different +memory managers: + +* jmemansi.c This version uses the ANSI-standard library routine tmpfile(), + which not all non-ANSI systems have. On some systems + tmpfile() may put the temporary file in a non-optimal + location; if you don't like what it does, use jmemname.c. + +* jmemname.c This version creates named temporary files. For anything + except a Unix machine, you'll need to configure the + select_file_name() routine appropriately; see the comments + near the head of jmemname.c. If you use this version, define + NEED_SIGNAL_CATCHER in jconfig.h to make sure the temp files + are removed if the program is aborted. + +* jmemnobs.c (That stands for No Backing Store :-).) This will compile on + almost any system, but it assumes you have enough main memory + or virtual memory to hold the biggest images you work with. + +* jmemdos.c This should be used with most 16-bit MS-DOS compilers. + See the system-specific notes about MS-DOS for more info. + IMPORTANT: if you use this, define USE_MSDOS_MEMMGR in + jconfig.h, and include the assembly file jmemdosa.asm in the + programs. The supplied makefiles and jconfig files for + 16-bit MS-DOS compilers already do both. + +* jmemmac.c Custom version for Apple Macintosh; see the system-specific + notes for Macintosh for more info. + +To use a particular memory manager, change the SYSDEPMEM variable in your +makefile to equal the corresponding object file name (for example, jmemansi.o +or jmemansi.obj for jmemansi.c). + +If you have plenty of (real or virtual) main memory, just use jmemnobs.c. +"Plenty" means about ten bytes for every pixel in the largest images +you plan to process, so a lot of systems don't meet this criterion. +If yours doesn't, try jmemansi.c first. If that doesn't compile, you'll have +to use jmemname.c; be sure to adjust select_file_name() for local conditions. +You may also need to change unlink() to remove() in close_backing_store(). + +Except with jmemnobs.c or jmemmac.c, you need to adjust the DEFAULT_MAX_MEM +setting to a reasonable value for your system (either by adding a #define for +DEFAULT_MAX_MEM to jconfig.h, or by adding a -D switch to the Makefile). +This value limits the amount of data space the program will attempt to +allocate. Code and static data space isn't counted, so the actual memory +needs for cjpeg or djpeg are typically 100 to 150Kb more than the max-memory +setting. Larger max-memory settings reduce the amount of I/O needed to +process a large image, but too large a value can result in "insufficient +memory" failures. On most Unix machines (and other systems with virtual +memory), just set DEFAULT_MAX_MEM to several million and forget it. At the +other end of the spectrum, for MS-DOS machines you probably can't go much +above 300K to 400K. (On MS-DOS the value refers to conventional memory only. +Extended/expanded memory is handled separately by jmemdos.c.) + + +BUILDING THE SOFTWARE +===================== + +Now you should be able to compile the software. Just say "make" (or +whatever's necessary to start the compilation). Have a cup of coffee. + +Here are some things that could go wrong: + +If your compiler complains about undefined structures, you should be able to +shut it up by putting "#define INCOMPLETE_TYPES_BROKEN" in jconfig.h. + +If you have trouble with missing system include files or inclusion of the +wrong ones, read jinclude.h. This shouldn't happen if you used configure +or ckconfig.c to set up jconfig.h. + +There are a fair number of routines that do not use all of their parameters; +some compilers will issue warnings about this, which you can ignore. There +are also a few configuration checks that may give "unreachable code" warnings. +Any other warning deserves investigation. + +If you don't have a getenv() library routine, define NO_GETENV. + +Also see the system-specific hints, below. + + +TESTING THE SOFTWARE +==================== + +As a quick test of functionality we've included a small sample image in +several forms: + testorig.jpg Starting point for the djpeg tests. + testimg.ppm The output of djpeg testorig.jpg + testimg.bmp The output of djpeg -bmp -colors 256 testorig.jpg + testimg.jpg The output of cjpeg testimg.ppm + testprog.jpg Progressive-mode equivalent of testorig.jpg. + testimgp.jpg The output of cjpeg -progressive -optimize testimg.ppm +(The first- and second-generation .jpg files aren't identical since the +default compression parameters are lossy.) If you can generate duplicates +of the testimg* files then you probably have working programs. + +With most of the makefiles, "make test" will perform the necessary +comparisons. + +If you're using a makefile that doesn't provide the test option, run djpeg +and cjpeg by hand and compare the output files to testimg* with whatever +binary file comparison tool you have. The files should be bit-for-bit +identical. + +If the programs complain "MAX_ALLOC_CHUNK is wrong, please fix", then you +need to reduce MAX_ALLOC_CHUNK to a value that fits in type size_t. +Try adding "#define MAX_ALLOC_CHUNK 65520L" to jconfig.h. A less likely +configuration error is "ALIGN_TYPE is wrong, please fix": defining ALIGN_TYPE +as long should take care of that one. + +If the cjpeg test run fails with "Missing Huffman code table entry", it's a +good bet that you needed to define RIGHT_SHIFT_IS_UNSIGNED. Go back to the +configuration step and run ckconfig.c. (This is a good plan for any other +test failure, too.) + +If you are using Unix (one-file) command line style on a non-Unix system, +it's a good idea to check that binary I/O through stdin/stdout actually +works. You should get the same results from "djpeg out.ppm" +as from "djpeg -outfile out.ppm testorig.jpg". Note that the makefiles all +use the latter style and therefore do not exercise stdin/stdout! If this +check fails, try recompiling with USE_SETMODE or USE_FDOPEN defined. +If it still doesn't work, better use two-file style. + +If you chose a memory manager other than jmemnobs.c, you should test that +temporary-file usage works. Try "djpeg -bmp -colors 256 -max 0 testorig.jpg" +and make sure its output matches testimg.bmp. If you have any really large +images handy, try compressing them with -optimize and/or decompressing with +-colors 256 to make sure your DEFAULT_MAX_MEM setting is not too large. + +NOTE: this is far from an exhaustive test of the JPEG software; some modules, +such as 1-pass color quantization, are not exercised at all. It's just a +quick test to give you some confidence that you haven't missed something +major. + + +INSTALLING THE SOFTWARE +======================= + +Once you're done with the above steps, you can install the software by +copying the executable files (cjpeg, djpeg, jpegtran, rdjpgcom, and wrjpgcom) +to wherever you normally install programs. On Unix systems, you'll also want +to put the man pages (cjpeg.1, djpeg.1, jpegtran.1, rdjpgcom.1, wrjpgcom.1) +in the man-page directory. The pre-fab makefiles don't support this step +since there's such a wide variety of installation procedures on different +systems. + +If you generated a Makefile with the "configure" script, you can just say + make install +to install the programs and their man pages into the standard places. +(You'll probably need to be root to do this.) We recommend first saying + make -n install +to see where configure thought the files should go. You may need to edit +the Makefile, particularly if your system's conventions for man page +filenames don't match what configure expects. + +If you want to install the IJG library itself, for use in compiling other +programs besides ours, then you need to put the four include files + jpeglib.h jerror.h jconfig.h jmorecfg.h +into your include-file directory, and put the library file libjpeg.a +(extension may vary depending on system) wherever library files go. +If you generated a Makefile with "configure", it will do what it thinks +is the right thing if you say + make install-lib + + +OPTIONAL STUFF +============== + +Progress monitor: + +If you like, you can #define PROGRESS_REPORT (in jconfig.h) to enable display +of percent-done progress reports. The routine provided in cdjpeg.c merely +prints percentages to stderr, but you can customize it to do something +fancier. + +Utah RLE file format support: + +We distribute the software with support for RLE image files (Utah Raster +Toolkit format) disabled, because the RLE support won't compile without the +Utah library. If you have URT version 3.1 or later, you can enable RLE +support as follows: + 1. #define RLE_SUPPORTED in jconfig.h. + 2. Add a -I option to CFLAGS in the Makefile for the directory + containing the URT .h files (typically the "include" + subdirectory of the URT distribution). + 3. Add -L... -lrle to LDLIBS in the Makefile, where ... specifies + the directory containing the URT "librle.a" file (typically the + "lib" subdirectory of the URT distribution). + +Support for 12-bit-deep pixel data: + +The JPEG standard allows either 8-bit or 12-bit data precision. (For color, +this means 8 or 12 bits per channel, of course.) If you need to work with +deeper than 8-bit data, you can compile the IJG code for 12-bit operation. +To do so: + 1. In jmorecfg.h, define BITS_IN_JSAMPLE as 12 rather than 8. + 2. In jconfig.h, undefine BMP_SUPPORTED, RLE_SUPPORTED, and TARGA_SUPPORTED, + because the code for those formats doesn't handle 12-bit data and won't + even compile. (The PPM code does work, as explained below. The GIF + code works too; it scales 8-bit GIF data to and from 12-bit depth + automatically.) + 3. Compile. Don't expect "make test" to pass, since the supplied test + files are for 8-bit data. + +Currently, 12-bit support does not work on 16-bit-int machines. + +Note that a 12-bit version will not read 8-bit JPEG files, nor vice versa; +so you'll want to keep around a regular 8-bit compilation as well. +(Run-time selection of data depth, to allow a single copy that does both, +is possible but would probably slow things down considerably; it's very low +on our to-do list.) + +The PPM reader (rdppm.c) can read 12-bit data from either text-format or +binary-format PPM and PGM files. Binary-format PPM/PGM files which have a +maxval greater than 255 are assumed to use 2 bytes per sample, MSB first +(big-endian order). As of early 1995, 2-byte binary format is not +officially supported by the PBMPLUS library, but it is expected that a +future release of PBMPLUS will support it. Note that the PPM reader will +read files of any maxval regardless of the BITS_IN_JSAMPLE setting; incoming +data is automatically rescaled to either maxval=255 or maxval=4095 as +appropriate for the cjpeg bit depth. + +The PPM writer (wrppm.c) will normally write 2-byte binary PPM or PGM +format, maxval 4095, when compiled with BITS_IN_JSAMPLE=12. Since this +format is not yet widely supported, you can disable it by compiling wrppm.c +with PPM_NORAWWORD defined; then the data is scaled down to 8 bits to make a +standard 1-byte/sample PPM or PGM file. (Yes, this means still another copy +of djpeg to keep around. But hopefully you won't need it for very long. +Poskanzer's supposed to get that new PBMPLUS release out Real Soon Now.) + +Of course, if you are working with 12-bit data, you probably have it stored +in some other, nonstandard format. In that case you'll probably want to +write your own I/O modules to read and write your format. + +Note that a 12-bit version of cjpeg always runs in "-optimize" mode, in +order to generate valid Huffman tables. This is necessary because our +default Huffman tables only cover 8-bit data. + +Removing code: + +If you need to make a smaller version of the JPEG software, some optional +functions can be removed at compile time. See the xxx_SUPPORTED #defines in +jconfig.h and jmorecfg.h. If at all possible, we recommend that you leave in +decoder support for all valid JPEG files, to ensure that you can read anyone's +output. Taking out support for image file formats that you don't use is the +most painless way to make the programs smaller. Another possibility is to +remove some of the DCT methods: in particular, the "IFAST" method may not be +enough faster than the others to be worth keeping on your machine. (If you +do remove ISLOW or IFAST, be sure to redefine JDCT_DEFAULT or JDCT_FASTEST +to a supported method, by adding a #define in jconfig.h.) + + +OPTIMIZATION +============ + +Unless you own a Cray, you'll probably be interested in making the JPEG +software go as fast as possible. This section covers some machine-dependent +optimizations you may want to try. We suggest that before trying any of +this, you first get the basic installation to pass the self-test step. +Repeat the self-test after any optimization to make sure that you haven't +broken anything. + +The integer DCT routines perform a lot of multiplications. These +multiplications must yield 32-bit results, but none of their input values +are more than 16 bits wide. On many machines, notably the 680x0 and 80x86 +CPUs, a 16x16=>32 bit multiply instruction is faster than a full 32x32=>32 +bit multiply. Unfortunately there is no portable way to specify such a +multiplication in C, but some compilers can generate one when you use the +right combination of casts. See the MULTIPLYxxx macro definitions in +jdct.h. If your compiler makes "int" be 32 bits and "short" be 16 bits, +defining SHORTxSHORT_32 is fairly likely to work. When experimenting with +alternate definitions, be sure to test not only whether the code still works +(use the self-test), but also whether it is actually faster --- on some +compilers, alternate definitions may compute the right answer, yet be slower +than the default. Timing cjpeg on a large PGM (grayscale) input file is the +best way to check this, as the DCT will be the largest fraction of the runtime +in that mode. (Note: some of the distributed compiler-specific jconfig files +already contain #define switches to select appropriate MULTIPLYxxx +definitions.) + +If your machine has sufficiently fast floating point hardware, you may find +that the float DCT method is faster than the integer DCT methods, even +after tweaking the integer multiply macros. In that case you may want to +make the float DCT be the default method. (The only objection to this is +that float DCT results may vary slightly across machines.) To do that, add +"#define JDCT_DEFAULT JDCT_FLOAT" to jconfig.h. Even if you don't change +the default, you should redefine JDCT_FASTEST, which is the method selected +by djpeg's -fast switch. Don't forget to update the documentation files +(usage.txt and/or cjpeg.1, djpeg.1) to agree with what you've done. + +If access to "short" arrays is slow on your machine, it may be a win to +define type JCOEF as int rather than short. This will cost a good deal of +memory though, particularly in some multi-pass modes, so don't do it unless +you have memory to burn and short is REALLY slow. + +If your compiler can compile function calls in-line, make sure the INLINE +macro in jmorecfg.h is defined as the keyword that marks a function +inline-able. Some compilers have a switch that tells the compiler to inline +any function it thinks is profitable (e.g., -finline-functions for gcc). +Enabling such a switch is likely to make the compiled code bigger but faster. + +In general, it's worth trying the maximum optimization level of your compiler, +and experimenting with any optional optimizations such as loop unrolling. +(Unfortunately, far too many compilers have optimizer bugs ... be prepared to +back off if the code fails self-test.) If you do any experimentation along +these lines, please report the optimal settings to jpeg-info@jpegclub.org so +we can mention them in future releases. Be sure to specify your machine and +compiler version. + + +HINTS FOR SPECIFIC SYSTEMS +========================== + +We welcome reports on changes needed for systems not mentioned here. Submit +'em to jpeg-info@jpegclub.org. Also, if configure or ckconfig.c is wrong +about how to configure the JPEG software for your system, please let us know. + + +Acorn RISC OS: + +(Thanks to Simon Middleton for these hints on compiling with Desktop C.) +After renaming the files according to Acorn conventions, take a copy of +makefile.ansi, change all occurrences of 'libjpeg.a' to 'libjpeg.o' and +change these definitions as indicated: + +CFLAGS= -throwback -IC: -Wn +LDLIBS=C:o.Stubs +SYSDEPMEM=jmemansi.o +LN=Link +AR=LibFile -c -o + +Also add a new line '.c.o:; $(cc) $< $(cflags) -c -o $@'. Remove the +lines '$(RM) libjpeg.o' and '$(AR2) libjpeg.o' and the 'jconfig.h' +dependency section. + +Copy jconfig.txt to jconfig.h. Edit jconfig.h to define TWO_FILE_COMMANDLINE +and CHAR_IS_UNSIGNED. + +Run the makefile using !AMU not !Make. If you want to use the 'clean' and +'test' makefile entries then you will have to fiddle with the syntax a bit +and rename the test files. + + +Amiga: + +SAS C 6.50 reportedly is too buggy to compile the IJG code properly. +A patch to update to 6.51 is available from SAS or AmiNet FTP sites. + +The supplied config files are set up to use jmemname.c as the memory +manager, with temporary files being created on the device named by +"JPEGTMP:". + + +Atari ST/STE/TT: + +Copy the project files makcjpeg.st, makdjpeg.st, maktjpeg.st, and makljpeg.st +to cjpeg.prj, djpeg.prj, jpegtran.prj, and libjpeg.prj respectively. The +project files should work as-is with Pure C. For Turbo C, change library +filenames "pc..." to "tc..." in each project file. Note that libjpeg.prj +selects jmemansi.c as the recommended memory manager. You'll probably want to +adjust the DEFAULT_MAX_MEM setting --- you want it to be a couple hundred K +less than your normal free memory. Put "#define DEFAULT_MAX_MEM nnnn" into +jconfig.h to do this. + +To use the 68881/68882 coprocessor for the floating point DCT, add the +compiler option "-8" to the project files and replace pcfltlib.lib with +pc881lib.lib in cjpeg.prj and djpeg.prj. Or if you don't have a +coprocessor, you may prefer to remove the float DCT code by undefining +DCT_FLOAT_SUPPORTED in jmorecfg.h (since without a coprocessor, the float +code will be too slow to be useful). In that case, you can delete +pcfltlib.lib from the project files. + +Note that you must make libjpeg.lib before making cjpeg.ttp, djpeg.ttp, +or jpegtran.ttp. You'll have to perform the self-test by hand. + +We haven't bothered to include project files for rdjpgcom and wrjpgcom. +Those source files should just be compiled by themselves; they don't +depend on the JPEG library. You can use the default.prj project file +of the Pure C distribution to make the programs. + +There is a bug in some older versions of the Turbo C library which causes the +space used by temporary files created with "tmpfile()" not to be freed after +an abnormal program exit. If you check your disk afterwards, you will find +cluster chains that are allocated but not used by a file. This should not +happen in cjpeg/djpeg/jpegtran, since we enable a signal catcher to explicitly +close temp files before exiting. But if you use the JPEG library with your +own code, be sure to supply a signal catcher, or else use a different +system-dependent memory manager. + + +Cray: + +Should you be so fortunate as to be running JPEG on a Cray YMP, there is a +compiler bug in old versions of Cray's Standard C (prior to 3.1). If you +still have an old compiler, you'll need to insert a line reading +"#pragma novector" just before the loop + for (i = 1; i <= (int) htbl->bits[l]; i++) + huffsize[p++] = (char) l; +in fix_huff_tbl (in V5beta1, line 204 of jchuff.c and line 176 of jdhuff.c). +[This bug may or may not still occur with the current IJG code, but it's +probably a dead issue anyway...] + + +HP-UX: + +If you have HP-UX 7.05 or later with the "software development" C compiler, +you should run the compiler in ANSI mode. If using the configure script, +say + ./configure CC='cc -Aa' +(or -Ae if you prefer). If configuring by hand, use makefile.ansi and add +"-Aa" to the CFLAGS line in the makefile. + +If you have a pre-7.05 system, or if you are using the non-ANSI C compiler +delivered with a minimum HP-UX system, then you must use makefile.unix +(and do NOT add -Aa); or just run configure without the CC option. + +On HP 9000 series 800 machines, the HP C compiler is buggy in revisions prior +to A.08.07. If you get complaints about "not a typedef name", you'll have to +use makefile.unix, or run configure without the CC option. + + +Macintosh, generic comments: + +The supplied user-interface files (cjpeg.c, djpeg.c, etc) are set up to +provide a Unix-style command line interface. You can use this interface on +the Mac by means of the ccommand() library routine provided by Metrowerks +CodeWarrior or Think C. This is only appropriate for testing the library, +however; to make a user-friendly equivalent of cjpeg/djpeg you'd really want +to develop a Mac-style user interface. There isn't a complete example +available at the moment, but there are some helpful starting points: +1. Sam Bushell's free "To JPEG" applet provides drag-and-drop conversion to +JPEG under System 7 and later. This only illustrates how to use the +compression half of the library, but it does a very nice job of that part. +The CodeWarrior source code is available from http://www.pobox.com/~jsam. +2. Jim Brunner prepared a Mac-style user interface for both compression and +decompression. Unfortunately, it hasn't been updated since IJG v4, and +the library's API has changed considerably since then. Still it may be of +some help, particularly as a guide to compiling the IJG code under Think C. +Jim's code is available from the Info-Mac archives, at sumex-aim.stanford.edu +or mirrors thereof; see file /info-mac/dev/src/jpeg-convert-c.hqx. + +jmemmac.c is the recommended memory manager back end for Macintosh. It uses +NewPtr/DisposePtr instead of malloc/free, and has a Mac-specific +implementation of jpeg_mem_available(). It also creates temporary files that +follow Mac conventions. (That part of the code relies on System-7-or-later OS +functions. See the comments in jmemmac.c if you need to run it on System 6.) +NOTE that USE_MAC_MEMMGR must be defined in jconfig.h to use jmemmac.c. + +You can also use jmemnobs.c, if you don't care about handling images larger +than available memory. If you use any memory manager back end other than +jmemmac.c, we recommend replacing "malloc" and "free" by "NewPtr" and +"DisposePtr", because Mac C libraries often have peculiar implementations of +malloc/free. (For instance, free() may not return the freed space to the +Mac Memory Manager. This is undesirable for the IJG code because jmemmgr.c +already clumps space requests.) + + +Macintosh, Metrowerks CodeWarrior: + +The Unix-command-line-style interface can be used by defining USE_CCOMMAND. +You'll also need to define TWO_FILE_COMMANDLINE to avoid stdin/stdout. +This means that when using the cjpeg/djpeg programs, you'll have to type the +input and output file names in the "Arguments" text-edit box, rather than +using the file radio buttons. (Perhaps USE_FDOPEN or USE_SETMODE would +eliminate the problem, but I haven't heard from anyone who's tried it.) + +On 680x0 Macs, Metrowerks defines type "double" as a 10-byte IEEE extended +float. jmemmgr.c won't like this: it wants sizeof(ALIGN_TYPE) to be a power +of 2. Add "#define ALIGN_TYPE long" to jconfig.h to eliminate the complaint. + +The supplied configuration file jconfig.mac can be used for your jconfig.h; +it includes all the recommended symbol definitions. If you have AppleScript +installed, you can run the supplied script makeproj.mac to create CodeWarrior +project files for the library and the testbed applications, then build the +library and applications. (Thanks to Dan Sears and Don Agro for this nifty +hack, which saves us from trying to maintain CodeWarrior project files as part +of the IJG distribution...) + + +Macintosh, Think C: + +The documentation in Jim Brunner's "JPEG Convert" source code (see above) +includes detailed build instructions for Think C; it's probably somewhat +out of date for the current release, but may be helpful. + +If you want to build the minimal command line version, proceed as follows. +You'll have to prepare project files for the programs; we don't include any +in the distribution since they are not text files. Use the file lists in +any of the supplied makefiles as a guide. Also add the ANSI and Unix C +libraries in a separate segment. You may need to divide the JPEG files into +more than one segment; we recommend dividing compression and decompression +modules. Define USE_CCOMMAND in jconfig.h so that the ccommand() routine is +called. You must also define TWO_FILE_COMMANDLINE because stdin/stdout +don't handle binary data correctly. + +On 680x0 Macs, Think C defines type "double" as a 12-byte IEEE extended float. +jmemmgr.c won't like this: it wants sizeof(ALIGN_TYPE) to be a power of 2. +Add "#define ALIGN_TYPE long" to jconfig.h to eliminate the complaint. + +jconfig.mac should work as a jconfig.h configuration file for Think C, +but the makeproj.mac AppleScript script is specific to CodeWarrior. Sorry. + + +MIPS R3000: + +MIPS's cc version 1.31 has a rather nasty optimization bug. Don't use -O +if you have that compiler version. (Use "cc -V" to check the version.) +Note that the R3000 chip is found in workstations from DEC and others. + + +MS-DOS, generic comments for 16-bit compilers: + +The IJG code is designed to work well in 80x86 "small" or "medium" memory +models (i.e., data pointers are 16 bits unless explicitly declared "far"; +code pointers can be either size). You may be able to use small model to +compile cjpeg or djpeg by itself, but you will probably have to use medium +model for any larger application. This won't make much difference in +performance. You *will* take a noticeable performance hit if you use a +large-data memory model, and you should avoid "huge" model if at all +possible. Be sure that NEED_FAR_POINTERS is defined in jconfig.h if you use +a small-data memory model; be sure it is NOT defined if you use a large-data +model. (The supplied makefiles and jconfig files for Borland and Microsoft C +compile in medium model and define NEED_FAR_POINTERS.) + +The DOS-specific memory manager, jmemdos.c, should be used if possible. +It needs some assembly-code routines which are in jmemdosa.asm; make sure +your makefile assembles that file and includes it in the library. If you +don't have a suitable assembler, you can get pre-assembled object files for +jmemdosa by FTP from ftp.uu.net:/graphics/jpeg/jdosaobj.zip. (DOS-oriented +distributions of the IJG source code often include these object files.) + +When using jmemdos.c, jconfig.h must define USE_MSDOS_MEMMGR and must set +MAX_ALLOC_CHUNK to less than 64K (65520L is a typical value). If your +C library's far-heap malloc() can't allocate blocks that large, reduce +MAX_ALLOC_CHUNK to whatever it can handle. + +If you can't use jmemdos.c for some reason --- for example, because you +don't have an assembler to assemble jmemdosa.asm --- you'll have to fall +back to jmemansi.c or jmemname.c. You'll probably still need to set +MAX_ALLOC_CHUNK in jconfig.h, because most DOS C libraries won't malloc() +more than 64K at a time. IMPORTANT: if you use jmemansi.c or jmemname.c, +you will have to compile in a large-data memory model in order to get the +right stdio library. Too bad. + +wrjpgcom needs to be compiled in large model, because it malloc()s a 64KB +work area to hold the comment text. If your C library's malloc can't +handle that, reduce MAX_COM_LENGTH as necessary in wrjpgcom.c. + +Most MS-DOS compilers treat stdin/stdout as text files, so you must use +two-file command line style. But if your compiler has either fdopen() or +setmode(), you can use one-file style if you like. To do this, define +USE_SETMODE or USE_FDOPEN so that stdin/stdout will be set to binary mode. +(USE_SETMODE seems to work with more DOS compilers than USE_FDOPEN.) You +should test that I/O through stdin/stdout produces the same results as I/O +to explicitly named files... the "make test" procedures in the supplied +makefiles do NOT use stdin/stdout. + + +MS-DOS, generic comments for 32-bit compilers: + +None of the above comments about memory models apply if you are using a +32-bit flat-memory-space environment, such as DJGPP or Watcom C. (And you +should use one if you have it, as performance will be much better than +8086-compatible code!) For flat-memory-space compilers, do NOT define +NEED_FAR_POINTERS, and do NOT use jmemdos.c. Use jmemnobs.c if the +environment supplies adequate virtual memory, otherwise use jmemansi.c or +jmemname.c. + +You'll still need to be careful about binary I/O through stdin/stdout. +See the last paragraph of the previous section. + + +MS-DOS, Borland C: + +Be sure to convert all the source files to DOS text format (CR/LF newlines). +Although Borland C will often work OK with unmodified Unix (LF newlines) +source files, sometimes it will give bogus compile errors. +"Illegal character '#'" is the most common such error. (This is true with +Borland C 3.1, but perhaps is fixed in newer releases.) + +If you want one-file command line style, just undefine TWO_FILE_COMMANDLINE. +jconfig.bcc already includes #define USE_SETMODE to make this work. +(fdopen does not work correctly.) + + +MS-DOS, Microsoft C: + +makefile.mc6 works with Microsoft C, DOS Visual C++, etc. It should only +be used if you want to build a 16-bit (small or medium memory model) program. + +If you want one-file command line style, just undefine TWO_FILE_COMMANDLINE. +jconfig.mc6 already includes #define USE_SETMODE to make this work. +(fdopen does not work correctly.) + +Note that this makefile assumes that the working copy of itself is called +"makefile". If you want to call it something else, say "makefile.mak", +be sure to adjust the dependency line that reads "$(RFILE) : makefile". +Otherwise the make will fail because it doesn't know how to create "makefile". +Worse, some releases of Microsoft's make utilities give an incorrect error +message in this situation. + +Old versions of MS C fail with an "out of macro expansion space" error +because they can't cope with the macro TRACEMS8 (defined in jerror.h). +If this happens to you, the easiest solution is to change TRACEMS8 to +expand to nothing. You'll lose the ability to dump out JPEG coefficient +tables with djpeg -debug -debug, but at least you can compile. + +Original MS C 6.0 is very buggy; it compiles incorrect code unless you turn +off optimization entirely (remove -O from CFLAGS). 6.00A is better, but it +still generates bad code if you enable loop optimizations (-Ol or -Ox). + +MS C 8.0 crashes when compiling jquant1.c with optimization switch /Oo ... +which is on by default. To work around this bug, compile that one file +with /Oo-. + + +Microsoft Windows (all versions), generic comments: + +Some Windows system include files define typedef boolean as "unsigned char". +The IJG code also defines typedef boolean, but we make it "int" by default. +This doesn't affect the IJG programs because we don't import those Windows +include files. But if you use the JPEG library in your own program, and some +of your program's files import one definition of boolean while some import the +other, you can get all sorts of mysterious problems. A good preventive step +is to make the IJG library use "unsigned char" for boolean. To do that, +add something like this to your jconfig.h file: + /* Define "boolean" as unsigned char, not int, per Windows custom */ + #ifndef __RPCNDR_H__ /* don't conflict if rpcndr.h already read */ + typedef unsigned char boolean; + #endif + #define HAVE_BOOLEAN /* prevent jmorecfg.h from redefining it */ +(This is already in jconfig.vc, by the way.) + +windef.h contains the declarations + #define far + #define FAR far +Since jmorecfg.h tries to define FAR as empty, you may get a compiler +warning if you include both jpeglib.h and windef.h (which windows.h +includes). To suppress the warning, you can put "#ifndef FAR"/"#endif" +around the line "#define FAR" in jmorecfg.h. +(Something like this is already in jmorecfg.h, by the way.) + +When using the library in a Windows application, you will almost certainly +want to modify or replace the error handler module jerror.c, since our +default error handler does a couple of inappropriate things: + 1. it tries to write error and warning messages on stderr; + 2. in event of a fatal error, it exits by calling exit(). + +A simple stopgap solution for problem 1 is to replace the line + fprintf(stderr, "%s\n", buffer); +(in output_message in jerror.c) with + MessageBox(GetActiveWindow(),buffer,"JPEG Error",MB_OK|MB_ICONERROR); +It's highly recommended that you at least do that much, since otherwise +error messages will disappear into nowhere. (Beginning with IJG v6b, this +code is already present in jerror.c; just define USE_WINDOWS_MESSAGEBOX in +jconfig.h to enable it.) + +The proper solution for problem 2 is to return control to your calling +application after a library error. This can be done with the setjmp/longjmp +technique discussed in libjpeg.txt and illustrated in example.c. (NOTE: +some older Windows C compilers provide versions of setjmp/longjmp that +don't actually work under Windows. You may need to use the Windows system +functions Catch and Throw instead.) + +The recommended memory manager under Windows is jmemnobs.c; in other words, +let Windows do any virtual memory management needed. You should NOT use +jmemdos.c nor jmemdosa.asm under Windows. + +For Windows 3.1, we recommend compiling in medium or large memory model; +for newer Windows versions, use a 32-bit flat memory model. (See the MS-DOS +sections above for more info about memory models.) In the 16-bit memory +models only, you'll need to put + #define MAX_ALLOC_CHUNK 65520L /* Maximum request to malloc() */ +into jconfig.h to limit allocation chunks to 64Kb. (Without that, you'd +have to use huge memory model, which slows things down unnecessarily.) +jmemnobs.c works without modification in large or flat memory models, but to +use medium model, you need to modify its jpeg_get_large and jpeg_free_large +routines to allocate far memory. In any case, you might like to replace +its calls to malloc and free with direct calls on Windows memory allocation +functions. + +You may also want to modify jdatasrc.c and jdatadst.c to use Windows file +operations rather than fread/fwrite. This is only necessary if your C +compiler doesn't provide a competent implementation of C stdio functions. + +You might want to tweak the RGB_xxx macros in jmorecfg.h so that the library +will accept or deliver color pixels in BGR sample order, not RGB; BGR order +is usually more convenient under Windows. Note that this change will break +the sample applications cjpeg/djpeg, but the library itself works fine. + + +Many people want to convert the IJG library into a DLL. This is reasonably +straightforward, but watch out for the following: + + 1. Don't try to compile as a DLL in small or medium memory model; use +large model, or even better, 32-bit flat model. Many places in the IJG code +assume the address of a local variable is an ordinary (not FAR) pointer; +that isn't true in a medium-model DLL. + + 2. Microsoft C cannot pass file pointers between applications and DLLs. +(See Microsoft Knowledge Base, PSS ID Number Q50336.) So jdatasrc.c and +jdatadst.c don't work if you open a file in your application and then pass +the pointer to the DLL. One workaround is to make jdatasrc.c/jdatadst.c +part of your main application rather than part of the DLL. + + 3. You'll probably need to modify the macros GLOBAL() and EXTERN() to +attach suitable linkage keywords to the exported routine names. Similarly, +you'll want to modify METHODDEF() and JMETHOD() to ensure function pointers +are declared in a way that lets application routines be called back through +the function pointers. These macros are in jmorecfg.h. Typical definitions +for a 16-bit DLL are: + #define GLOBAL(type) type _far _pascal _loadds _export + #define EXTERN(type) extern type _far _pascal _loadds + #define METHODDEF(type) static type _far _pascal + #define JMETHOD(type,methodname,arglist) \ + type (_far _pascal *methodname) arglist +For a 32-bit DLL you may want something like + #define GLOBAL(type) __declspec(dllexport) type + #define EXTERN(type) extern __declspec(dllexport) type +Although not all the GLOBAL routines are actually intended to be called by +the application, the performance cost of making them all DLL entry points is +negligible. + +The unmodified IJG library presents a very C-specific application interface, +so the resulting DLL is only usable from C or C++ applications. There has +been some talk of writing wrapper code that would present a simpler interface +usable from other languages, such as Visual Basic. This is on our to-do list +but hasn't been very high priority --- any volunteers out there? + + +Microsoft Windows, Borland C: + +The provided jconfig.bcc should work OK in a 32-bit Windows environment, +but you'll need to tweak it in a 16-bit environment (you'd need to define +NEED_FAR_POINTERS and MAX_ALLOC_CHUNK). Beware that makefile.bcc will need +alteration if you want to use it for Windows --- in particular, you should +use jmemnobs.c not jmemdos.c under Windows. + +Borland C++ 4.5 fails with an internal compiler error when trying to compile +jdmerge.c in 32-bit mode. If enough people complain, perhaps Borland will fix +it. In the meantime, the simplest known workaround is to add a redundant +definition of the variable range_limit in h2v1_merged_upsample(), at the head +of the block that handles odd image width (about line 268 in v6 jdmerge.c): + /* If image width is odd, do the last output column separately */ + if (cinfo->output_width & 1) { + register JSAMPLE * range_limit = cinfo->sample_range_limit; /* ADD THIS */ + cb = GETJSAMPLE(*inptr1); +Pretty bizarre, especially since the very similar routine h2v2_merged_upsample +doesn't trigger the bug. +Recent reports suggest that this bug does not occur with "bcc32a" (the +Pentium-optimized version of the compiler). + +Another report from a user of Borland C 4.5 was that incorrect code (leading +to a color shift in processed images) was produced if any of the following +optimization switch combinations were used: + -Ot -Og + -Ot -Op + -Ot -Om +So try backing off on optimization if you see such a problem. (Are there +several different releases all numbered "4.5"??) + + +Microsoft Windows, Microsoft Visual C++: + +jconfig.vc should work OK with any Microsoft compiler for a 32-bit memory +model. makefile.vc is intended for command-line use. (If you are using +the Developer Studio environment, you may prefer the DevStudio project +files; see below.) + +IJG JPEG 7 adds extern "C" to jpeglib.h. This avoids the need to put +extern "C" { ... } around #include "jpeglib.h" in your C++ application. +You can also force VC++ to treat the library as C++ code by renaming +all the *.c files to *.cpp (and adjusting the makefile to match). +In this case you also need to define the symbol DONT_USE_EXTERN_C in +the configuration to prevent jpeglib.h from using extern "C". + + +Microsoft Windows, Microsoft Visual C++ 6 Developer Studio: + +We include makefiles that should work as project files in DevStudio 6.0 or +later. There is a library makefile that builds the IJG library as a static +Win32 library, and application makefiles that build the sample applications +as Win32 console applications. (Even if you only want the library, we +recommend building the applications so that you can run the self-test.) + +To use: +1. Open the command prompt, change to the main directory and execute the + command line + NMAKE /f makefile.vc setup-vc6 + This will move jconfig.vc to jconfig.h and makefiles to project files. + (Note that the renaming is critical!) +2. Open the workspace file jpeg.dsw, build the library project. + (If you are using DevStudio more recent than 6.0, you'll probably + get a message saying that the project files are being updated.) +3. Open the workspace file apps.dsw, build the application projects. +4. To perform the self-test, execute the command line + NMAKE /f makefile.vc test-build +5. Move the application .exe files from `app`\Release to an + appropriate location on your path. + + +Microsoft Windows, Microsoft Visual C++ 2010 Developer Studio (v10): + +We include makefiles that should work as project files in Visual Studio +2010 or later. There is a library makefile that builds the IJG library +as a static Win32 library, and application makefiles that build the sample +applications as Win32 console applications. (Even if you only want the +library, we recommend building the applications so that you can run the +self-test.) + +To use: +1. Open the command prompt, change to the main directory and execute the + command line + NMAKE /f makefile.vc setup-v10 + This will move jconfig.vc to jconfig.h and makefiles to project files. + (Note that the renaming is critical!) +2. Open the solution file jpeg.sln, build the library project. + (If you are using Visual Studio more recent than 2010 (v10), you'll + probably get a message saying that the project files are being updated.) +3. Open the solution file apps.sln, build the application projects. +4. To perform the self-test, execute the command line + NMAKE /f makefile.vc test-build +5. Move the application .exe files from `app`\Release to an + appropriate location on your path. + +Note: +There seems to be an optimization bug in the compiler which causes the +self-test to fail with the color quantization option. +We have disabled optimization for the file jquant2.c in the library +project file which causes the self-test to pass properly. + + +OS/2, Borland C++: + +Watch out for optimization bugs in older Borland compilers; you may need +to back off the optimization switch settings. See the comments in +makefile.bcc. + + +SGI: + +On some SGI systems, you may need to set "AR2= ar -ts" in the Makefile. +If you are using configure, you can do this by saying + ./configure RANLIB='ar -ts' +This change is not needed on all SGIs. Use it only if the make fails at the +stage of linking the completed programs. + +On the MIPS R4000 architecture (Indy, etc.), the compiler option "-mips2" +reportedly speeds up the float DCT method substantially, enough to make it +faster than the default int method (but still slower than the fast int +method). If you use -mips2, you may want to alter the default DCT method to +be float. To do this, put "#define JDCT_DEFAULT JDCT_FLOAT" in jconfig.h. + + +VMS: + +On an Alpha/VMS system with MMS, be sure to use the "/Marco=Alpha=1" +qualifier with MMS when building the JPEG package. + +VAX/VMS v5.5-1 may have problems with the test step of the build procedure +reporting differences when it compares the original and test images. If the +error points to the last block of the files, it is most likely bogus and may +be safely ignored. It seems to be because the files are Stream_LF and +Backup/Compare has difficulty with the (presumably) null padded files. +This problem was not observed on VAX/VMS v6.1 or AXP/VMS v6.1. diff --git a/jpeg/jaricom.c b/jpeg/jaricom.c new file mode 100644 index 0000000..6900688 --- /dev/null +++ b/jpeg/jaricom.c @@ -0,0 +1,153 @@ +/* + * jaricom.c + * + * Developed 1997-2011 by Guido Vollbeding. + * This file is part of the Independent JPEG Group's software. + * For conditions of distribution and use, see the accompanying README file. + * + * This file contains probability estimation tables for common use in + * arithmetic entropy encoding and decoding routines. + * + * This data represents Table D.3 in the JPEG spec (D.2 in the draft), + * ISO/IEC IS 10918-1 and CCITT Recommendation ITU-T T.81, and Table 24 + * in the JBIG spec, ISO/IEC IS 11544 and CCITT Recommendation ITU-T T.82. + */ + +#define JPEG_INTERNALS +#include "jinclude.h" +#include "jpeglib.h" + +/* The following #define specifies the packing of the four components + * into the compact INT32 representation. + * Note that this formula must match the actual arithmetic encoder + * and decoder implementation. The implementation has to be changed + * if this formula is changed. + * The current organization is leaned on Markus Kuhn's JBIG + * implementation (jbig_tab.c). + */ + +#define V(i,a,b,c,d) (((INT32)a << 16) | ((INT32)c << 8) | ((INT32)d << 7) | b) + +const INT32 jpeg_aritab[113+1] = { +/* + * Index, Qe_Value, Next_Index_LPS, Next_Index_MPS, Switch_MPS + */ + V( 0, 0x5a1d, 1, 1, 1 ), + V( 1, 0x2586, 14, 2, 0 ), + V( 2, 0x1114, 16, 3, 0 ), + V( 3, 0x080b, 18, 4, 0 ), + V( 4, 0x03d8, 20, 5, 0 ), + V( 5, 0x01da, 23, 6, 0 ), + V( 6, 0x00e5, 25, 7, 0 ), + V( 7, 0x006f, 28, 8, 0 ), + V( 8, 0x0036, 30, 9, 0 ), + V( 9, 0x001a, 33, 10, 0 ), + V( 10, 0x000d, 35, 11, 0 ), + V( 11, 0x0006, 9, 12, 0 ), + V( 12, 0x0003, 10, 13, 0 ), + V( 13, 0x0001, 12, 13, 0 ), + V( 14, 0x5a7f, 15, 15, 1 ), + V( 15, 0x3f25, 36, 16, 0 ), + V( 16, 0x2cf2, 38, 17, 0 ), + V( 17, 0x207c, 39, 18, 0 ), + V( 18, 0x17b9, 40, 19, 0 ), + V( 19, 0x1182, 42, 20, 0 ), + V( 20, 0x0cef, 43, 21, 0 ), + V( 21, 0x09a1, 45, 22, 0 ), + V( 22, 0x072f, 46, 23, 0 ), + V( 23, 0x055c, 48, 24, 0 ), + V( 24, 0x0406, 49, 25, 0 ), + V( 25, 0x0303, 51, 26, 0 ), + V( 26, 0x0240, 52, 27, 0 ), + V( 27, 0x01b1, 54, 28, 0 ), + V( 28, 0x0144, 56, 29, 0 ), + V( 29, 0x00f5, 57, 30, 0 ), + V( 30, 0x00b7, 59, 31, 0 ), + V( 31, 0x008a, 60, 32, 0 ), + V( 32, 0x0068, 62, 33, 0 ), + V( 33, 0x004e, 63, 34, 0 ), + V( 34, 0x003b, 32, 35, 0 ), + V( 35, 0x002c, 33, 9, 0 ), + V( 36, 0x5ae1, 37, 37, 1 ), + V( 37, 0x484c, 64, 38, 0 ), + V( 38, 0x3a0d, 65, 39, 0 ), + V( 39, 0x2ef1, 67, 40, 0 ), + V( 40, 0x261f, 68, 41, 0 ), + V( 41, 0x1f33, 69, 42, 0 ), + V( 42, 0x19a8, 70, 43, 0 ), + V( 43, 0x1518, 72, 44, 0 ), + V( 44, 0x1177, 73, 45, 0 ), + V( 45, 0x0e74, 74, 46, 0 ), + V( 46, 0x0bfb, 75, 47, 0 ), + V( 47, 0x09f8, 77, 48, 0 ), + V( 48, 0x0861, 78, 49, 0 ), + V( 49, 0x0706, 79, 50, 0 ), + V( 50, 0x05cd, 48, 51, 0 ), + V( 51, 0x04de, 50, 52, 0 ), + V( 52, 0x040f, 50, 53, 0 ), + V( 53, 0x0363, 51, 54, 0 ), + V( 54, 0x02d4, 52, 55, 0 ), + V( 55, 0x025c, 53, 56, 0 ), + V( 56, 0x01f8, 54, 57, 0 ), + V( 57, 0x01a4, 55, 58, 0 ), + V( 58, 0x0160, 56, 59, 0 ), + V( 59, 0x0125, 57, 60, 0 ), + V( 60, 0x00f6, 58, 61, 0 ), + V( 61, 0x00cb, 59, 62, 0 ), + V( 62, 0x00ab, 61, 63, 0 ), + V( 63, 0x008f, 61, 32, 0 ), + V( 64, 0x5b12, 65, 65, 1 ), + V( 65, 0x4d04, 80, 66, 0 ), + V( 66, 0x412c, 81, 67, 0 ), + V( 67, 0x37d8, 82, 68, 0 ), + V( 68, 0x2fe8, 83, 69, 0 ), + V( 69, 0x293c, 84, 70, 0 ), + V( 70, 0x2379, 86, 71, 0 ), + V( 71, 0x1edf, 87, 72, 0 ), + V( 72, 0x1aa9, 87, 73, 0 ), + V( 73, 0x174e, 72, 74, 0 ), + V( 74, 0x1424, 72, 75, 0 ), + V( 75, 0x119c, 74, 76, 0 ), + V( 76, 0x0f6b, 74, 77, 0 ), + V( 77, 0x0d51, 75, 78, 0 ), + V( 78, 0x0bb6, 77, 79, 0 ), + V( 79, 0x0a40, 77, 48, 0 ), + V( 80, 0x5832, 80, 81, 1 ), + V( 81, 0x4d1c, 88, 82, 0 ), + V( 82, 0x438e, 89, 83, 0 ), + V( 83, 0x3bdd, 90, 84, 0 ), + V( 84, 0x34ee, 91, 85, 0 ), + V( 85, 0x2eae, 92, 86, 0 ), + V( 86, 0x299a, 93, 87, 0 ), + V( 87, 0x2516, 86, 71, 0 ), + V( 88, 0x5570, 88, 89, 1 ), + V( 89, 0x4ca9, 95, 90, 0 ), + V( 90, 0x44d9, 96, 91, 0 ), + V( 91, 0x3e22, 97, 92, 0 ), + V( 92, 0x3824, 99, 93, 0 ), + V( 93, 0x32b4, 99, 94, 0 ), + V( 94, 0x2e17, 93, 86, 0 ), + V( 95, 0x56a8, 95, 96, 1 ), + V( 96, 0x4f46, 101, 97, 0 ), + V( 97, 0x47e5, 102, 98, 0 ), + V( 98, 0x41cf, 103, 99, 0 ), + V( 99, 0x3c3d, 104, 100, 0 ), + V( 100, 0x375e, 99, 93, 0 ), + V( 101, 0x5231, 105, 102, 0 ), + V( 102, 0x4c0f, 106, 103, 0 ), + V( 103, 0x4639, 107, 104, 0 ), + V( 104, 0x415e, 103, 99, 0 ), + V( 105, 0x5627, 105, 106, 1 ), + V( 106, 0x50e7, 108, 107, 0 ), + V( 107, 0x4b85, 109, 103, 0 ), + V( 108, 0x5597, 110, 109, 0 ), + V( 109, 0x504f, 111, 107, 0 ), + V( 110, 0x5a10, 110, 111, 1 ), + V( 111, 0x5522, 112, 109, 0 ), + V( 112, 0x59eb, 112, 111, 1 ), +/* + * This last entry is used for fixed probability estimate of 0.5 + * as suggested in Section 10.3 Table 5 of ITU-T Rec. T.851. + */ + V( 113, 0x5a1d, 113, 113, 0 ) +}; diff --git a/jpeg/jcapimin.c b/jpeg/jcapimin.c new file mode 100644 index 0000000..639ce86 --- /dev/null +++ b/jpeg/jcapimin.c @@ -0,0 +1,288 @@ +/* + * jcapimin.c + * + * Copyright (C) 1994-1998, Thomas G. Lane. + * Modified 2003-2010 by Guido Vollbeding. + * This file is part of the Independent JPEG Group's software. + * For conditions of distribution and use, see the accompanying README file. + * + * This file contains application interface code for the compression half + * of the JPEG library. These are the "minimum" API routines that may be + * needed in either the normal full-compression case or the transcoding-only + * case. + * + * Most of the routines intended to be called directly by an application + * are in this file or in jcapistd.c. But also see jcparam.c for + * parameter-setup helper routines, jcomapi.c for routines shared by + * compression and decompression, and jctrans.c for the transcoding case. + */ + +#define JPEG_INTERNALS +#include "jinclude.h" +#include "jpeglib.h" + + +/* + * Initialization of a JPEG compression object. + * The error manager must already be set up (in case memory manager fails). + */ + +GLOBAL(void) +jpeg_CreateCompress (j_compress_ptr cinfo, int version, size_t structsize) +{ + int i; + + /* Guard against version mismatches between library and caller. */ + cinfo->mem = NULL; /* so jpeg_destroy knows mem mgr not called */ + if (version != JPEG_LIB_VERSION) + ERREXIT2(cinfo, JERR_BAD_LIB_VERSION, JPEG_LIB_VERSION, version); + if (structsize != SIZEOF(struct jpeg_compress_struct)) + ERREXIT2(cinfo, JERR_BAD_STRUCT_SIZE, + (int) SIZEOF(struct jpeg_compress_struct), (int) structsize); + + /* For debugging purposes, we zero the whole master structure. + * But the application has already set the err pointer, and may have set + * client_data, so we have to save and restore those fields. + * Note: if application hasn't set client_data, tools like Purify may + * complain here. + */ + { + struct jpeg_error_mgr * err = cinfo->err; + void * client_data = cinfo->client_data; /* ignore Purify complaint here */ + MEMZERO(cinfo, SIZEOF(struct jpeg_compress_struct)); + cinfo->err = err; + cinfo->client_data = client_data; + } + cinfo->is_decompressor = FALSE; + + /* Initialize a memory manager instance for this object */ + jinit_memory_mgr((j_common_ptr) cinfo); + + /* Zero out pointers to permanent structures. */ + cinfo->progress = NULL; + cinfo->dest = NULL; + + cinfo->comp_info = NULL; + + for (i = 0; i < NUM_QUANT_TBLS; i++) { + cinfo->quant_tbl_ptrs[i] = NULL; + cinfo->q_scale_factor[i] = 100; + } + + for (i = 0; i < NUM_HUFF_TBLS; i++) { + cinfo->dc_huff_tbl_ptrs[i] = NULL; + cinfo->ac_huff_tbl_ptrs[i] = NULL; + } + + /* Must do it here for emit_dqt in case jpeg_write_tables is used */ + cinfo->block_size = DCTSIZE; + cinfo->natural_order = jpeg_natural_order; + cinfo->lim_Se = DCTSIZE2-1; + + cinfo->script_space = NULL; + + cinfo->input_gamma = 1.0; /* in case application forgets */ + + /* OK, I'm ready */ + cinfo->global_state = CSTATE_START; +} + + +/* + * Destruction of a JPEG compression object + */ + +GLOBAL(void) +jpeg_destroy_compress (j_compress_ptr cinfo) +{ + jpeg_destroy((j_common_ptr) cinfo); /* use common routine */ +} + + +/* + * Abort processing of a JPEG compression operation, + * but don't destroy the object itself. + */ + +GLOBAL(void) +jpeg_abort_compress (j_compress_ptr cinfo) +{ + jpeg_abort((j_common_ptr) cinfo); /* use common routine */ +} + + +/* + * Forcibly suppress or un-suppress all quantization and Huffman tables. + * Marks all currently defined tables as already written (if suppress) + * or not written (if !suppress). This will control whether they get emitted + * by a subsequent jpeg_start_compress call. + * + * This routine is exported for use by applications that want to produce + * abbreviated JPEG datastreams. It logically belongs in jcparam.c, but + * since it is called by jpeg_start_compress, we put it here --- otherwise + * jcparam.o would be linked whether the application used it or not. + */ + +GLOBAL(void) +jpeg_suppress_tables (j_compress_ptr cinfo, boolean suppress) +{ + int i; + JQUANT_TBL * qtbl; + JHUFF_TBL * htbl; + + for (i = 0; i < NUM_QUANT_TBLS; i++) { + if ((qtbl = cinfo->quant_tbl_ptrs[i]) != NULL) + qtbl->sent_table = suppress; + } + + for (i = 0; i < NUM_HUFF_TBLS; i++) { + if ((htbl = cinfo->dc_huff_tbl_ptrs[i]) != NULL) + htbl->sent_table = suppress; + if ((htbl = cinfo->ac_huff_tbl_ptrs[i]) != NULL) + htbl->sent_table = suppress; + } +} + + +/* + * Finish JPEG compression. + * + * If a multipass operating mode was selected, this may do a great deal of + * work including most of the actual output. + */ + +GLOBAL(void) +jpeg_finish_compress (j_compress_ptr cinfo) +{ + JDIMENSION iMCU_row; + + if (cinfo->global_state == CSTATE_SCANNING || + cinfo->global_state == CSTATE_RAW_OK) { + /* Terminate first pass */ + if (cinfo->next_scanline < cinfo->image_height) + ERREXIT(cinfo, JERR_TOO_LITTLE_DATA); + (*cinfo->master->finish_pass) (cinfo); + } else if (cinfo->global_state != CSTATE_WRCOEFS) + ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state); + /* Perform any remaining passes */ + while (! cinfo->master->is_last_pass) { + (*cinfo->master->prepare_for_pass) (cinfo); + for (iMCU_row = 0; iMCU_row < cinfo->total_iMCU_rows; iMCU_row++) { + if (cinfo->progress != NULL) { + cinfo->progress->pass_counter = (long) iMCU_row; + cinfo->progress->pass_limit = (long) cinfo->total_iMCU_rows; + (*cinfo->progress->progress_monitor) ((j_common_ptr) cinfo); + } + /* We bypass the main controller and invoke coef controller directly; + * all work is being done from the coefficient buffer. + */ + if (! (*cinfo->coef->compress_data) (cinfo, (JSAMPIMAGE) NULL)) + ERREXIT(cinfo, JERR_CANT_SUSPEND); + } + (*cinfo->master->finish_pass) (cinfo); + } + /* Write EOI, do final cleanup */ + (*cinfo->marker->write_file_trailer) (cinfo); + (*cinfo->dest->term_destination) (cinfo); + /* We can use jpeg_abort to release memory and reset global_state */ + jpeg_abort((j_common_ptr) cinfo); +} + + +/* + * Write a special marker. + * This is only recommended for writing COM or APPn markers. + * Must be called after jpeg_start_compress() and before + * first call to jpeg_write_scanlines() or jpeg_write_raw_data(). + */ + +GLOBAL(void) +jpeg_write_marker (j_compress_ptr cinfo, int marker, + const JOCTET *dataptr, unsigned int datalen) +{ + JMETHOD(void, write_marker_byte, (j_compress_ptr info, int val)); + + if (cinfo->next_scanline != 0 || + (cinfo->global_state != CSTATE_SCANNING && + cinfo->global_state != CSTATE_RAW_OK && + cinfo->global_state != CSTATE_WRCOEFS)) + ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state); + + (*cinfo->marker->write_marker_header) (cinfo, marker, datalen); + write_marker_byte = cinfo->marker->write_marker_byte; /* copy for speed */ + while (datalen--) { + (*write_marker_byte) (cinfo, *dataptr); + dataptr++; + } +} + +/* Same, but piecemeal. */ + +GLOBAL(void) +jpeg_write_m_header (j_compress_ptr cinfo, int marker, unsigned int datalen) +{ + if (cinfo->next_scanline != 0 || + (cinfo->global_state != CSTATE_SCANNING && + cinfo->global_state != CSTATE_RAW_OK && + cinfo->global_state != CSTATE_WRCOEFS)) + ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state); + + (*cinfo->marker->write_marker_header) (cinfo, marker, datalen); +} + +GLOBAL(void) +jpeg_write_m_byte (j_compress_ptr cinfo, int val) +{ + (*cinfo->marker->write_marker_byte) (cinfo, val); +} + + +/* + * Alternate compression function: just write an abbreviated table file. + * Before calling this, all parameters and a data destination must be set up. + * + * To produce a pair of files containing abbreviated tables and abbreviated + * image data, one would proceed as follows: + * + * initialize JPEG object + * set JPEG parameters + * set destination to table file + * jpeg_write_tables(cinfo); + * set destination to image file + * jpeg_start_compress(cinfo, FALSE); + * write data... + * jpeg_finish_compress(cinfo); + * + * jpeg_write_tables has the side effect of marking all tables written + * (same as jpeg_suppress_tables(..., TRUE)). Thus a subsequent start_compress + * will not re-emit the tables unless it is passed write_all_tables=TRUE. + */ + +GLOBAL(void) +jpeg_write_tables (j_compress_ptr cinfo) +{ + if (cinfo->global_state != CSTATE_START) + ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state); + + /* (Re)initialize error mgr and destination modules */ + (*cinfo->err->reset_error_mgr) ((j_common_ptr) cinfo); + (*cinfo->dest->init_destination) (cinfo); + /* Initialize the marker writer ... bit of a crock to do it here. */ + jinit_marker_writer(cinfo); + /* Write them tables! */ + (*cinfo->marker->write_tables_only) (cinfo); + /* And clean up. */ + (*cinfo->dest->term_destination) (cinfo); + /* + * In library releases up through v6a, we called jpeg_abort() here to free + * any working memory allocated by the destination manager and marker + * writer. Some applications had a problem with that: they allocated space + * of their own from the library memory manager, and didn't want it to go + * away during write_tables. So now we do nothing. This will cause a + * memory leak if an app calls write_tables repeatedly without doing a full + * compression cycle or otherwise resetting the JPEG object. However, that + * seems less bad than unexpectedly freeing memory in the normal case. + * An app that prefers the old behavior can call jpeg_abort for itself after + * each call to jpeg_write_tables(). + */ +} diff --git a/jpeg/jcapistd.c b/jpeg/jcapistd.c new file mode 100644 index 0000000..c0320b1 --- /dev/null +++ b/jpeg/jcapistd.c @@ -0,0 +1,161 @@ +/* + * jcapistd.c + * + * Copyright (C) 1994-1996, Thomas G. Lane. + * This file is part of the Independent JPEG Group's software. + * For conditions of distribution and use, see the accompanying README file. + * + * This file contains application interface code for the compression half + * of the JPEG library. These are the "standard" API routines that are + * used in the normal full-compression case. They are not used by a + * transcoding-only application. Note that if an application links in + * jpeg_start_compress, it will end up linking in the entire compressor. + * We thus must separate this file from jcapimin.c to avoid linking the + * whole compression library into a transcoder. + */ + +#define JPEG_INTERNALS +#include "jinclude.h" +#include "jpeglib.h" + + +/* + * Compression initialization. + * Before calling this, all parameters and a data destination must be set up. + * + * We require a write_all_tables parameter as a failsafe check when writing + * multiple datastreams from the same compression object. Since prior runs + * will have left all the tables marked sent_table=TRUE, a subsequent run + * would emit an abbreviated stream (no tables) by default. This may be what + * is wanted, but for safety's sake it should not be the default behavior: + * programmers should have to make a deliberate choice to emit abbreviated + * images. Therefore the documentation and examples should encourage people + * to pass write_all_tables=TRUE; then it will take active thought to do the + * wrong thing. + */ + +GLOBAL(void) +jpeg_start_compress (j_compress_ptr cinfo, boolean write_all_tables) +{ + if (cinfo->global_state != CSTATE_START) + ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state); + + if (write_all_tables) + jpeg_suppress_tables(cinfo, FALSE); /* mark all tables to be written */ + + /* (Re)initialize error mgr and destination modules */ + (*cinfo->err->reset_error_mgr) ((j_common_ptr) cinfo); + (*cinfo->dest->init_destination) (cinfo); + /* Perform master selection of active modules */ + jinit_compress_master(cinfo); + /* Set up for the first pass */ + (*cinfo->master->prepare_for_pass) (cinfo); + /* Ready for application to drive first pass through jpeg_write_scanlines + * or jpeg_write_raw_data. + */ + cinfo->next_scanline = 0; + cinfo->global_state = (cinfo->raw_data_in ? CSTATE_RAW_OK : CSTATE_SCANNING); +} + + +/* + * Write some scanlines of data to the JPEG compressor. + * + * The return value will be the number of lines actually written. + * This should be less than the supplied num_lines only in case that + * the data destination module has requested suspension of the compressor, + * or if more than image_height scanlines are passed in. + * + * Note: we warn about excess calls to jpeg_write_scanlines() since + * this likely signals an application programmer error. However, + * excess scanlines passed in the last valid call are *silently* ignored, + * so that the application need not adjust num_lines for end-of-image + * when using a multiple-scanline buffer. + */ + +GLOBAL(JDIMENSION) +jpeg_write_scanlines (j_compress_ptr cinfo, JSAMPARRAY scanlines, + JDIMENSION num_lines) +{ + JDIMENSION row_ctr, rows_left; + + if (cinfo->global_state != CSTATE_SCANNING) + ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state); + if (cinfo->next_scanline >= cinfo->image_height) + WARNMS(cinfo, JWRN_TOO_MUCH_DATA); + + /* Call progress monitor hook if present */ + if (cinfo->progress != NULL) { + cinfo->progress->pass_counter = (long) cinfo->next_scanline; + cinfo->progress->pass_limit = (long) cinfo->image_height; + (*cinfo->progress->progress_monitor) ((j_common_ptr) cinfo); + } + + /* Give master control module another chance if this is first call to + * jpeg_write_scanlines. This lets output of the frame/scan headers be + * delayed so that application can write COM, etc, markers between + * jpeg_start_compress and jpeg_write_scanlines. + */ + if (cinfo->master->call_pass_startup) + (*cinfo->master->pass_startup) (cinfo); + + /* Ignore any extra scanlines at bottom of image. */ + rows_left = cinfo->image_height - cinfo->next_scanline; + if (num_lines > rows_left) + num_lines = rows_left; + + row_ctr = 0; + (*cinfo->main->process_data) (cinfo, scanlines, &row_ctr, num_lines); + cinfo->next_scanline += row_ctr; + return row_ctr; +} + + +/* + * Alternate entry point to write raw data. + * Processes exactly one iMCU row per call, unless suspended. + */ + +GLOBAL(JDIMENSION) +jpeg_write_raw_data (j_compress_ptr cinfo, JSAMPIMAGE data, + JDIMENSION num_lines) +{ + JDIMENSION lines_per_iMCU_row; + + if (cinfo->global_state != CSTATE_RAW_OK) + ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state); + if (cinfo->next_scanline >= cinfo->image_height) { + WARNMS(cinfo, JWRN_TOO_MUCH_DATA); + return 0; + } + + /* Call progress monitor hook if present */ + if (cinfo->progress != NULL) { + cinfo->progress->pass_counter = (long) cinfo->next_scanline; + cinfo->progress->pass_limit = (long) cinfo->image_height; + (*cinfo->progress->progress_monitor) ((j_common_ptr) cinfo); + } + + /* Give master control module another chance if this is first call to + * jpeg_write_raw_data. This lets output of the frame/scan headers be + * delayed so that application can write COM, etc, markers between + * jpeg_start_compress and jpeg_write_raw_data. + */ + if (cinfo->master->call_pass_startup) + (*cinfo->master->pass_startup) (cinfo); + + /* Verify that at least one iMCU row has been passed. */ + lines_per_iMCU_row = cinfo->max_v_samp_factor * DCTSIZE; + if (num_lines < lines_per_iMCU_row) + ERREXIT(cinfo, JERR_BUFFER_SIZE); + + /* Directly compress the row. */ + if (! (*cinfo->coef->compress_data) (cinfo, data)) { + /* If compressor did not consume the whole row, suspend processing. */ + return 0; + } + + /* OK, we processed one iMCU row. */ + cinfo->next_scanline += lines_per_iMCU_row; + return lines_per_iMCU_row; +} diff --git a/jpeg/jcarith.c b/jpeg/jcarith.c new file mode 100644 index 0000000..033f670 --- /dev/null +++ b/jpeg/jcarith.c @@ -0,0 +1,937 @@ +/* + * jcarith.c + * + * Developed 1997-2011 by Guido Vollbeding. + * This file is part of the Independent JPEG Group's software. + * For conditions of distribution and use, see the accompanying README file. + * + * This file contains portable arithmetic entropy encoding routines for JPEG + * (implementing the ISO/IEC IS 10918-1 and CCITT Recommendation ITU-T T.81). + * + * Both sequential and progressive modes are supported in this single module. + * + * Suspension is not currently supported in this module. + */ + +#define JPEG_INTERNALS +#include "jinclude.h" +#include "jpeglib.h" + + +/* Expanded entropy encoder object for arithmetic encoding. */ + +typedef struct { + struct jpeg_entropy_encoder pub; /* public fields */ + + INT32 c; /* C register, base of coding interval, layout as in sec. D.1.3 */ + INT32 a; /* A register, normalized size of coding interval */ + INT32 sc; /* counter for stacked 0xFF values which might overflow */ + INT32 zc; /* counter for pending 0x00 output values which might * + * be discarded at the end ("Pacman" termination) */ + int ct; /* bit shift counter, determines when next byte will be written */ + int buffer; /* buffer for most recent output byte != 0xFF */ + + int last_dc_val[MAX_COMPS_IN_SCAN]; /* last DC coef for each component */ + int dc_context[MAX_COMPS_IN_SCAN]; /* context index for DC conditioning */ + + unsigned int restarts_to_go; /* MCUs left in this restart interval */ + int next_restart_num; /* next restart number to write (0-7) */ + + /* Pointers to statistics areas (these workspaces have image lifespan) */ + unsigned char * dc_stats[NUM_ARITH_TBLS]; + unsigned char * ac_stats[NUM_ARITH_TBLS]; + + /* Statistics bin for coding with fixed probability 0.5 */ + unsigned char fixed_bin[4]; +} arith_entropy_encoder; + +typedef arith_entropy_encoder * arith_entropy_ptr; + +/* The following two definitions specify the allocation chunk size + * for the statistics area. + * According to sections F.1.4.4.1.3 and F.1.4.4.2, we need at least + * 49 statistics bins for DC, and 245 statistics bins for AC coding. + * + * We use a compact representation with 1 byte per statistics bin, + * thus the numbers directly represent byte sizes. + * This 1 byte per statistics bin contains the meaning of the MPS + * (more probable symbol) in the highest bit (mask 0x80), and the + * index into the probability estimation state machine table + * in the lower bits (mask 0x7F). + */ + +#define DC_STAT_BINS 64 +#define AC_STAT_BINS 256 + +/* NOTE: Uncomment the following #define if you want to use the + * given formula for calculating the AC conditioning parameter Kx + * for spectral selection progressive coding in section G.1.3.2 + * of the spec (Kx = Kmin + SRL (8 + Se - Kmin) 4). + * Although the spec and P&M authors claim that this "has proven + * to give good results for 8 bit precision samples", I'm not + * convinced yet that this is really beneficial. + * Early tests gave only very marginal compression enhancements + * (a few - around 5 or so - bytes even for very large files), + * which would turn out rather negative if we'd suppress the + * DAC (Define Arithmetic Conditioning) marker segments for + * the default parameters in the future. + * Note that currently the marker writing module emits 12-byte + * DAC segments for a full-component scan in a color image. + * This is not worth worrying about IMHO. However, since the + * spec defines the default values to be used if the tables + * are omitted (unlike Huffman tables, which are required + * anyway), one might optimize this behaviour in the future, + * and then it would be disadvantageous to use custom tables if + * they don't provide sufficient gain to exceed the DAC size. + * + * On the other hand, I'd consider it as a reasonable result + * that the conditioning has no significant influence on the + * compression performance. This means that the basic + * statistical model is already rather stable. + * + * Thus, at the moment, we use the default conditioning values + * anyway, and do not use the custom formula. + * +#define CALCULATE_SPECTRAL_CONDITIONING + */ + +/* IRIGHT_SHIFT is like RIGHT_SHIFT, but works on int rather than INT32. + * We assume that int right shift is unsigned if INT32 right shift is, + * which should be safe. + */ + +#ifdef RIGHT_SHIFT_IS_UNSIGNED +#define ISHIFT_TEMPS int ishift_temp; +#define IRIGHT_SHIFT(x,shft) \ + ((ishift_temp = (x)) < 0 ? \ + (ishift_temp >> (shft)) | ((~0) << (16-(shft))) : \ + (ishift_temp >> (shft))) +#else +#define ISHIFT_TEMPS +#define IRIGHT_SHIFT(x,shft) ((x) >> (shft)) +#endif + + +LOCAL(void) +emit_byte (int val, j_compress_ptr cinfo) +/* Write next output byte; we do not support suspension in this module. */ +{ + struct jpeg_destination_mgr * dest = cinfo->dest; + + *dest->next_output_byte++ = (JOCTET) val; + if (--dest->free_in_buffer == 0) + if (! (*dest->empty_output_buffer) (cinfo)) + ERREXIT(cinfo, JERR_CANT_SUSPEND); +} + + +/* + * Finish up at the end of an arithmetic-compressed scan. + */ + +METHODDEF(void) +finish_pass (j_compress_ptr cinfo) +{ + arith_entropy_ptr e = (arith_entropy_ptr) cinfo->entropy; + INT32 temp; + + /* Section D.1.8: Termination of encoding */ + + /* Find the e->c in the coding interval with the largest + * number of trailing zero bits */ + if ((temp = (e->a - 1 + e->c) & 0xFFFF0000L) < e->c) + e->c = temp + 0x8000L; + else + e->c = temp; + /* Send remaining bytes to output */ + e->c <<= e->ct; + if (e->c & 0xF8000000L) { + /* One final overflow has to be handled */ + if (e->buffer >= 0) { + if (e->zc) + do emit_byte(0x00, cinfo); + while (--e->zc); + emit_byte(e->buffer + 1, cinfo); + if (e->buffer + 1 == 0xFF) + emit_byte(0x00, cinfo); + } + e->zc += e->sc; /* carry-over converts stacked 0xFF bytes to 0x00 */ + e->sc = 0; + } else { + if (e->buffer == 0) + ++e->zc; + else if (e->buffer >= 0) { + if (e->zc) + do emit_byte(0x00, cinfo); + while (--e->zc); + emit_byte(e->buffer, cinfo); + } + if (e->sc) { + if (e->zc) + do emit_byte(0x00, cinfo); + while (--e->zc); + do { + emit_byte(0xFF, cinfo); + emit_byte(0x00, cinfo); + } while (--e->sc); + } + } + /* Output final bytes only if they are not 0x00 */ + if (e->c & 0x7FFF800L) { + if (e->zc) /* output final pending zero bytes */ + do emit_byte(0x00, cinfo); + while (--e->zc); + emit_byte((e->c >> 19) & 0xFF, cinfo); + if (((e->c >> 19) & 0xFF) == 0xFF) + emit_byte(0x00, cinfo); + if (e->c & 0x7F800L) { + emit_byte((e->c >> 11) & 0xFF, cinfo); + if (((e->c >> 11) & 0xFF) == 0xFF) + emit_byte(0x00, cinfo); + } + } +} + + +/* + * The core arithmetic encoding routine (common in JPEG and JBIG). + * This needs to go as fast as possible. + * Machine-dependent optimization facilities + * are not utilized in this portable implementation. + * However, this code should be fairly efficient and + * may be a good base for further optimizations anyway. + * + * Parameter 'val' to be encoded may be 0 or 1 (binary decision). + * + * Note: I've added full "Pacman" termination support to the + * byte output routines, which is equivalent to the optional + * Discard_final_zeros procedure (Figure D.15) in the spec. + * Thus, we always produce the shortest possible output + * stream compliant to the spec (no trailing zero bytes, + * except for FF stuffing). + * + * I've also introduced a new scheme for accessing + * the probability estimation state machine table, + * derived from Markus Kuhn's JBIG implementation. + */ + +LOCAL(void) +arith_encode (j_compress_ptr cinfo, unsigned char *st, int val) +{ + register arith_entropy_ptr e = (arith_entropy_ptr) cinfo->entropy; + register unsigned char nl, nm; + register INT32 qe, temp; + register int sv; + + /* Fetch values from our compact representation of Table D.3(D.2): + * Qe values and probability estimation state machine + */ + sv = *st; + qe = jpeg_aritab[sv & 0x7F]; /* => Qe_Value */ + nl = qe & 0xFF; qe >>= 8; /* Next_Index_LPS + Switch_MPS */ + nm = qe & 0xFF; qe >>= 8; /* Next_Index_MPS */ + + /* Encode & estimation procedures per sections D.1.4 & D.1.5 */ + e->a -= qe; + if (val != (sv >> 7)) { + /* Encode the less probable symbol */ + if (e->a >= qe) { + /* If the interval size (qe) for the less probable symbol (LPS) + * is larger than the interval size for the MPS, then exchange + * the two symbols for coding efficiency, otherwise code the LPS + * as usual: */ + e->c += e->a; + e->a = qe; + } + *st = (sv & 0x80) ^ nl; /* Estimate_after_LPS */ + } else { + /* Encode the more probable symbol */ + if (e->a >= 0x8000L) + return; /* A >= 0x8000 -> ready, no renormalization required */ + if (e->a < qe) { + /* If the interval size (qe) for the less probable symbol (LPS) + * is larger than the interval size for the MPS, then exchange + * the two symbols for coding efficiency: */ + e->c += e->a; + e->a = qe; + } + *st = (sv & 0x80) ^ nm; /* Estimate_after_MPS */ + } + + /* Renormalization & data output per section D.1.6 */ + do { + e->a <<= 1; + e->c <<= 1; + if (--e->ct == 0) { + /* Another byte is ready for output */ + temp = e->c >> 19; + if (temp > 0xFF) { + /* Handle overflow over all stacked 0xFF bytes */ + if (e->buffer >= 0) { + if (e->zc) + do emit_byte(0x00, cinfo); + while (--e->zc); + emit_byte(e->buffer + 1, cinfo); + if (e->buffer + 1 == 0xFF) + emit_byte(0x00, cinfo); + } + e->zc += e->sc; /* carry-over converts stacked 0xFF bytes to 0x00 */ + e->sc = 0; + /* Note: The 3 spacer bits in the C register guarantee + * that the new buffer byte can't be 0xFF here + * (see page 160 in the P&M JPEG book). */ + e->buffer = temp & 0xFF; /* new output byte, might overflow later */ + } else if (temp == 0xFF) { + ++e->sc; /* stack 0xFF byte (which might overflow later) */ + } else { + /* Output all stacked 0xFF bytes, they will not overflow any more */ + if (e->buffer == 0) + ++e->zc; + else if (e->buffer >= 0) { + if (e->zc) + do emit_byte(0x00, cinfo); + while (--e->zc); + emit_byte(e->buffer, cinfo); + } + if (e->sc) { + if (e->zc) + do emit_byte(0x00, cinfo); + while (--e->zc); + do { + emit_byte(0xFF, cinfo); + emit_byte(0x00, cinfo); + } while (--e->sc); + } + e->buffer = temp & 0xFF; /* new output byte (can still overflow) */ + } + e->c &= 0x7FFFFL; + e->ct += 8; + } + } while (e->a < 0x8000L); +} + + +/* + * Emit a restart marker & resynchronize predictions. + */ + +LOCAL(void) +emit_restart (j_compress_ptr cinfo, int restart_num) +{ + arith_entropy_ptr entropy = (arith_entropy_ptr) cinfo->entropy; + int ci; + jpeg_component_info * compptr; + + finish_pass(cinfo); + + emit_byte(0xFF, cinfo); + emit_byte(JPEG_RST0 + restart_num, cinfo); + + /* Re-initialize statistics areas */ + for (ci = 0; ci < cinfo->comps_in_scan; ci++) { + compptr = cinfo->cur_comp_info[ci]; + /* DC needs no table for refinement scan */ + if (cinfo->Ss == 0 && cinfo->Ah == 0) { + MEMZERO(entropy->dc_stats[compptr->dc_tbl_no], DC_STAT_BINS); + /* Reset DC predictions to 0 */ + entropy->last_dc_val[ci] = 0; + entropy->dc_context[ci] = 0; + } + /* AC needs no table when not present */ + if (cinfo->Se) { + MEMZERO(entropy->ac_stats[compptr->ac_tbl_no], AC_STAT_BINS); + } + } + + /* Reset arithmetic encoding variables */ + entropy->c = 0; + entropy->a = 0x10000L; + entropy->sc = 0; + entropy->zc = 0; + entropy->ct = 11; + entropy->buffer = -1; /* empty */ +} + + +/* + * MCU encoding for DC initial scan (either spectral selection, + * or first pass of successive approximation). + */ + +METHODDEF(boolean) +encode_mcu_DC_first (j_compress_ptr cinfo, JBLOCKROW *MCU_data) +{ + arith_entropy_ptr entropy = (arith_entropy_ptr) cinfo->entropy; + JBLOCKROW block; + unsigned char *st; + int blkn, ci, tbl; + int v, v2, m; + ISHIFT_TEMPS + + /* Emit restart marker if needed */ + if (cinfo->restart_interval) { + if (entropy->restarts_to_go == 0) { + emit_restart(cinfo, entropy->next_restart_num); + entropy->restarts_to_go = cinfo->restart_interval; + entropy->next_restart_num++; + entropy->next_restart_num &= 7; + } + entropy->restarts_to_go--; + } + + /* Encode the MCU data blocks */ + for (blkn = 0; blkn < cinfo->blocks_in_MCU; blkn++) { + block = MCU_data[blkn]; + ci = cinfo->MCU_membership[blkn]; + tbl = cinfo->cur_comp_info[ci]->dc_tbl_no; + + /* Compute the DC value after the required point transform by Al. + * This is simply an arithmetic right shift. + */ + m = IRIGHT_SHIFT((int) ((*block)[0]), cinfo->Al); + + /* Sections F.1.4.1 & F.1.4.4.1: Encoding of DC coefficients */ + + /* Table F.4: Point to statistics bin S0 for DC coefficient coding */ + st = entropy->dc_stats[tbl] + entropy->dc_context[ci]; + + /* Figure F.4: Encode_DC_DIFF */ + if ((v = m - entropy->last_dc_val[ci]) == 0) { + arith_encode(cinfo, st, 0); + entropy->dc_context[ci] = 0; /* zero diff category */ + } else { + entropy->last_dc_val[ci] = m; + arith_encode(cinfo, st, 1); + /* Figure F.6: Encoding nonzero value v */ + /* Figure F.7: Encoding the sign of v */ + if (v > 0) { + arith_encode(cinfo, st + 1, 0); /* Table F.4: SS = S0 + 1 */ + st += 2; /* Table F.4: SP = S0 + 2 */ + entropy->dc_context[ci] = 4; /* small positive diff category */ + } else { + v = -v; + arith_encode(cinfo, st + 1, 1); /* Table F.4: SS = S0 + 1 */ + st += 3; /* Table F.4: SN = S0 + 3 */ + entropy->dc_context[ci] = 8; /* small negative diff category */ + } + /* Figure F.8: Encoding the magnitude category of v */ + m = 0; + if (v -= 1) { + arith_encode(cinfo, st, 1); + m = 1; + v2 = v; + st = entropy->dc_stats[tbl] + 20; /* Table F.4: X1 = 20 */ + while (v2 >>= 1) { + arith_encode(cinfo, st, 1); + m <<= 1; + st += 1; + } + } + arith_encode(cinfo, st, 0); + /* Section F.1.4.4.1.2: Establish dc_context conditioning category */ + if (m < (int) ((1L << cinfo->arith_dc_L[tbl]) >> 1)) + entropy->dc_context[ci] = 0; /* zero diff category */ + else if (m > (int) ((1L << cinfo->arith_dc_U[tbl]) >> 1)) + entropy->dc_context[ci] += 8; /* large diff category */ + /* Figure F.9: Encoding the magnitude bit pattern of v */ + st += 14; + while (m >>= 1) + arith_encode(cinfo, st, (m & v) ? 1 : 0); + } + } + + return TRUE; +} + + +/* + * MCU encoding for AC initial scan (either spectral selection, + * or first pass of successive approximation). + */ + +METHODDEF(boolean) +encode_mcu_AC_first (j_compress_ptr cinfo, JBLOCKROW *MCU_data) +{ + arith_entropy_ptr entropy = (arith_entropy_ptr) cinfo->entropy; + JBLOCKROW block; + unsigned char *st; + int tbl, k, ke; + int v, v2, m; + const int * natural_order; + + /* Emit restart marker if needed */ + if (cinfo->restart_interval) { + if (entropy->restarts_to_go == 0) { + emit_restart(cinfo, entropy->next_restart_num); + entropy->restarts_to_go = cinfo->restart_interval; + entropy->next_restart_num++; + entropy->next_restart_num &= 7; + } + entropy->restarts_to_go--; + } + + natural_order = cinfo->natural_order; + + /* Encode the MCU data block */ + block = MCU_data[0]; + tbl = cinfo->cur_comp_info[0]->ac_tbl_no; + + /* Sections F.1.4.2 & F.1.4.4.2: Encoding of AC coefficients */ + + /* Establish EOB (end-of-block) index */ + for (ke = cinfo->Se; ke > 0; ke--) + /* We must apply the point transform by Al. For AC coefficients this + * is an integer division with rounding towards 0. To do this portably + * in C, we shift after obtaining the absolute value. + */ + if ((v = (*block)[natural_order[ke]]) >= 0) { + if (v >>= cinfo->Al) break; + } else { + v = -v; + if (v >>= cinfo->Al) break; + } + + /* Figure F.5: Encode_AC_Coefficients */ + for (k = cinfo->Ss; k <= ke; k++) { + st = entropy->ac_stats[tbl] + 3 * (k - 1); + arith_encode(cinfo, st, 0); /* EOB decision */ + for (;;) { + if ((v = (*block)[natural_order[k]]) >= 0) { + if (v >>= cinfo->Al) { + arith_encode(cinfo, st + 1, 1); + arith_encode(cinfo, entropy->fixed_bin, 0); + break; + } + } else { + v = -v; + if (v >>= cinfo->Al) { + arith_encode(cinfo, st + 1, 1); + arith_encode(cinfo, entropy->fixed_bin, 1); + break; + } + } + arith_encode(cinfo, st + 1, 0); st += 3; k++; + } + st += 2; + /* Figure F.8: Encoding the magnitude category of v */ + m = 0; + if (v -= 1) { + arith_encode(cinfo, st, 1); + m = 1; + v2 = v; + if (v2 >>= 1) { + arith_encode(cinfo, st, 1); + m <<= 1; + st = entropy->ac_stats[tbl] + + (k <= cinfo->arith_ac_K[tbl] ? 189 : 217); + while (v2 >>= 1) { + arith_encode(cinfo, st, 1); + m <<= 1; + st += 1; + } + } + } + arith_encode(cinfo, st, 0); + /* Figure F.9: Encoding the magnitude bit pattern of v */ + st += 14; + while (m >>= 1) + arith_encode(cinfo, st, (m & v) ? 1 : 0); + } + /* Encode EOB decision only if k <= cinfo->Se */ + if (k <= cinfo->Se) { + st = entropy->ac_stats[tbl] + 3 * (k - 1); + arith_encode(cinfo, st, 1); + } + + return TRUE; +} + + +/* + * MCU encoding for DC successive approximation refinement scan. + */ + +METHODDEF(boolean) +encode_mcu_DC_refine (j_compress_ptr cinfo, JBLOCKROW *MCU_data) +{ + arith_entropy_ptr entropy = (arith_entropy_ptr) cinfo->entropy; + unsigned char *st; + int Al, blkn; + + /* Emit restart marker if needed */ + if (cinfo->restart_interval) { + if (entropy->restarts_to_go == 0) { + emit_restart(cinfo, entropy->next_restart_num); + entropy->restarts_to_go = cinfo->restart_interval; + entropy->next_restart_num++; + entropy->next_restart_num &= 7; + } + entropy->restarts_to_go--; + } + + st = entropy->fixed_bin; /* use fixed probability estimation */ + Al = cinfo->Al; + + /* Encode the MCU data blocks */ + for (blkn = 0; blkn < cinfo->blocks_in_MCU; blkn++) { + /* We simply emit the Al'th bit of the DC coefficient value. */ + arith_encode(cinfo, st, (MCU_data[blkn][0][0] >> Al) & 1); + } + + return TRUE; +} + + +/* + * MCU encoding for AC successive approximation refinement scan. + */ + +METHODDEF(boolean) +encode_mcu_AC_refine (j_compress_ptr cinfo, JBLOCKROW *MCU_data) +{ + arith_entropy_ptr entropy = (arith_entropy_ptr) cinfo->entropy; + JBLOCKROW block; + unsigned char *st; + int tbl, k, ke, kex; + int v; + const int * natural_order; + + /* Emit restart marker if needed */ + if (cinfo->restart_interval) { + if (entropy->restarts_to_go == 0) { + emit_restart(cinfo, entropy->next_restart_num); + entropy->restarts_to_go = cinfo->restart_interval; + entropy->next_restart_num++; + entropy->next_restart_num &= 7; + } + entropy->restarts_to_go--; + } + + natural_order = cinfo->natural_order; + + /* Encode the MCU data block */ + block = MCU_data[0]; + tbl = cinfo->cur_comp_info[0]->ac_tbl_no; + + /* Section G.1.3.3: Encoding of AC coefficients */ + + /* Establish EOB (end-of-block) index */ + for (ke = cinfo->Se; ke > 0; ke--) + /* We must apply the point transform by Al. For AC coefficients this + * is an integer division with rounding towards 0. To do this portably + * in C, we shift after obtaining the absolute value. + */ + if ((v = (*block)[natural_order[ke]]) >= 0) { + if (v >>= cinfo->Al) break; + } else { + v = -v; + if (v >>= cinfo->Al) break; + } + + /* Establish EOBx (previous stage end-of-block) index */ + for (kex = ke; kex > 0; kex--) + if ((v = (*block)[natural_order[kex]]) >= 0) { + if (v >>= cinfo->Ah) break; + } else { + v = -v; + if (v >>= cinfo->Ah) break; + } + + /* Figure G.10: Encode_AC_Coefficients_SA */ + for (k = cinfo->Ss; k <= ke; k++) { + st = entropy->ac_stats[tbl] + 3 * (k - 1); + if (k > kex) + arith_encode(cinfo, st, 0); /* EOB decision */ + for (;;) { + if ((v = (*block)[natural_order[k]]) >= 0) { + if (v >>= cinfo->Al) { + if (v >> 1) /* previously nonzero coef */ + arith_encode(cinfo, st + 2, (v & 1)); + else { /* newly nonzero coef */ + arith_encode(cinfo, st + 1, 1); + arith_encode(cinfo, entropy->fixed_bin, 0); + } + break; + } + } else { + v = -v; + if (v >>= cinfo->Al) { + if (v >> 1) /* previously nonzero coef */ + arith_encode(cinfo, st + 2, (v & 1)); + else { /* newly nonzero coef */ + arith_encode(cinfo, st + 1, 1); + arith_encode(cinfo, entropy->fixed_bin, 1); + } + break; + } + } + arith_encode(cinfo, st + 1, 0); st += 3; k++; + } + } + /* Encode EOB decision only if k <= cinfo->Se */ + if (k <= cinfo->Se) { + st = entropy->ac_stats[tbl] + 3 * (k - 1); + arith_encode(cinfo, st, 1); + } + + return TRUE; +} + + +/* + * Encode and output one MCU's worth of arithmetic-compressed coefficients. + */ + +METHODDEF(boolean) +encode_mcu (j_compress_ptr cinfo, JBLOCKROW *MCU_data) +{ + arith_entropy_ptr entropy = (arith_entropy_ptr) cinfo->entropy; + jpeg_component_info * compptr; + JBLOCKROW block; + unsigned char *st; + int blkn, ci, tbl, k, ke; + int v, v2, m; + const int * natural_order; + + /* Emit restart marker if needed */ + if (cinfo->restart_interval) { + if (entropy->restarts_to_go == 0) { + emit_restart(cinfo, entropy->next_restart_num); + entropy->restarts_to_go = cinfo->restart_interval; + entropy->next_restart_num++; + entropy->next_restart_num &= 7; + } + entropy->restarts_to_go--; + } + + natural_order = cinfo->natural_order; + + /* Encode the MCU data blocks */ + for (blkn = 0; blkn < cinfo->blocks_in_MCU; blkn++) { + block = MCU_data[blkn]; + ci = cinfo->MCU_membership[blkn]; + compptr = cinfo->cur_comp_info[ci]; + + /* Sections F.1.4.1 & F.1.4.4.1: Encoding of DC coefficients */ + + tbl = compptr->dc_tbl_no; + + /* Table F.4: Point to statistics bin S0 for DC coefficient coding */ + st = entropy->dc_stats[tbl] + entropy->dc_context[ci]; + + /* Figure F.4: Encode_DC_DIFF */ + if ((v = (*block)[0] - entropy->last_dc_val[ci]) == 0) { + arith_encode(cinfo, st, 0); + entropy->dc_context[ci] = 0; /* zero diff category */ + } else { + entropy->last_dc_val[ci] = (*block)[0]; + arith_encode(cinfo, st, 1); + /* Figure F.6: Encoding nonzero value v */ + /* Figure F.7: Encoding the sign of v */ + if (v > 0) { + arith_encode(cinfo, st + 1, 0); /* Table F.4: SS = S0 + 1 */ + st += 2; /* Table F.4: SP = S0 + 2 */ + entropy->dc_context[ci] = 4; /* small positive diff category */ + } else { + v = -v; + arith_encode(cinfo, st + 1, 1); /* Table F.4: SS = S0 + 1 */ + st += 3; /* Table F.4: SN = S0 + 3 */ + entropy->dc_context[ci] = 8; /* small negative diff category */ + } + /* Figure F.8: Encoding the magnitude category of v */ + m = 0; + if (v -= 1) { + arith_encode(cinfo, st, 1); + m = 1; + v2 = v; + st = entropy->dc_stats[tbl] + 20; /* Table F.4: X1 = 20 */ + while (v2 >>= 1) { + arith_encode(cinfo, st, 1); + m <<= 1; + st += 1; + } + } + arith_encode(cinfo, st, 0); + /* Section F.1.4.4.1.2: Establish dc_context conditioning category */ + if (m < (int) ((1L << cinfo->arith_dc_L[tbl]) >> 1)) + entropy->dc_context[ci] = 0; /* zero diff category */ + else if (m > (int) ((1L << cinfo->arith_dc_U[tbl]) >> 1)) + entropy->dc_context[ci] += 8; /* large diff category */ + /* Figure F.9: Encoding the magnitude bit pattern of v */ + st += 14; + while (m >>= 1) + arith_encode(cinfo, st, (m & v) ? 1 : 0); + } + + /* Sections F.1.4.2 & F.1.4.4.2: Encoding of AC coefficients */ + + if ((ke = cinfo->lim_Se) == 0) continue; + tbl = compptr->ac_tbl_no; + + /* Establish EOB (end-of-block) index */ + do { + if ((*block)[natural_order[ke]]) break; + } while (--ke); + + /* Figure F.5: Encode_AC_Coefficients */ + for (k = 0; k < ke;) { + st = entropy->ac_stats[tbl] + 3 * k; + arith_encode(cinfo, st, 0); /* EOB decision */ + while ((v = (*block)[natural_order[++k]]) == 0) { + arith_encode(cinfo, st + 1, 0); + st += 3; + } + arith_encode(cinfo, st + 1, 1); + /* Figure F.6: Encoding nonzero value v */ + /* Figure F.7: Encoding the sign of v */ + if (v > 0) { + arith_encode(cinfo, entropy->fixed_bin, 0); + } else { + v = -v; + arith_encode(cinfo, entropy->fixed_bin, 1); + } + st += 2; + /* Figure F.8: Encoding the magnitude category of v */ + m = 0; + if (v -= 1) { + arith_encode(cinfo, st, 1); + m = 1; + v2 = v; + if (v2 >>= 1) { + arith_encode(cinfo, st, 1); + m <<= 1; + st = entropy->ac_stats[tbl] + + (k <= cinfo->arith_ac_K[tbl] ? 189 : 217); + while (v2 >>= 1) { + arith_encode(cinfo, st, 1); + m <<= 1; + st += 1; + } + } + } + arith_encode(cinfo, st, 0); + /* Figure F.9: Encoding the magnitude bit pattern of v */ + st += 14; + while (m >>= 1) + arith_encode(cinfo, st, (m & v) ? 1 : 0); + } + /* Encode EOB decision only if k < cinfo->lim_Se */ + if (k < cinfo->lim_Se) { + st = entropy->ac_stats[tbl] + 3 * k; + arith_encode(cinfo, st, 1); + } + } + + return TRUE; +} + + +/* + * Initialize for an arithmetic-compressed scan. + */ + +METHODDEF(void) +start_pass (j_compress_ptr cinfo, boolean gather_statistics) +{ + arith_entropy_ptr entropy = (arith_entropy_ptr) cinfo->entropy; + int ci, tbl; + jpeg_component_info * compptr; + + if (gather_statistics) + /* Make sure to avoid that in the master control logic! + * We are fully adaptive here and need no extra + * statistics gathering pass! + */ + ERREXIT(cinfo, JERR_NOT_COMPILED); + + /* We assume jcmaster.c already validated the progressive scan parameters. */ + + /* Select execution routines */ + if (cinfo->progressive_mode) { + if (cinfo->Ah == 0) { + if (cinfo->Ss == 0) + entropy->pub.encode_mcu = encode_mcu_DC_first; + else + entropy->pub.encode_mcu = encode_mcu_AC_first; + } else { + if (cinfo->Ss == 0) + entropy->pub.encode_mcu = encode_mcu_DC_refine; + else + entropy->pub.encode_mcu = encode_mcu_AC_refine; + } + } else + entropy->pub.encode_mcu = encode_mcu; + + /* Allocate & initialize requested statistics areas */ + for (ci = 0; ci < cinfo->comps_in_scan; ci++) { + compptr = cinfo->cur_comp_info[ci]; + /* DC needs no table for refinement scan */ + if (cinfo->Ss == 0 && cinfo->Ah == 0) { + tbl = compptr->dc_tbl_no; + if (tbl < 0 || tbl >= NUM_ARITH_TBLS) + ERREXIT1(cinfo, JERR_NO_ARITH_TABLE, tbl); + if (entropy->dc_stats[tbl] == NULL) + entropy->dc_stats[tbl] = (unsigned char *) (*cinfo->mem->alloc_small) + ((j_common_ptr) cinfo, JPOOL_IMAGE, DC_STAT_BINS); + MEMZERO(entropy->dc_stats[tbl], DC_STAT_BINS); + /* Initialize DC predictions to 0 */ + entropy->last_dc_val[ci] = 0; + entropy->dc_context[ci] = 0; + } + /* AC needs no table when not present */ + if (cinfo->Se) { + tbl = compptr->ac_tbl_no; + if (tbl < 0 || tbl >= NUM_ARITH_TBLS) + ERREXIT1(cinfo, JERR_NO_ARITH_TABLE, tbl); + if (entropy->ac_stats[tbl] == NULL) + entropy->ac_stats[tbl] = (unsigned char *) (*cinfo->mem->alloc_small) + ((j_common_ptr) cinfo, JPOOL_IMAGE, AC_STAT_BINS); + MEMZERO(entropy->ac_stats[tbl], AC_STAT_BINS); +#ifdef CALCULATE_SPECTRAL_CONDITIONING + if (cinfo->progressive_mode) + /* Section G.1.3.2: Set appropriate arithmetic conditioning value Kx */ + cinfo->arith_ac_K[tbl] = cinfo->Ss + ((8 + cinfo->Se - cinfo->Ss) >> 4); +#endif + } + } + + /* Initialize arithmetic encoding variables */ + entropy->c = 0; + entropy->a = 0x10000L; + entropy->sc = 0; + entropy->zc = 0; + entropy->ct = 11; + entropy->buffer = -1; /* empty */ + + /* Initialize restart stuff */ + entropy->restarts_to_go = cinfo->restart_interval; + entropy->next_restart_num = 0; +} + + +/* + * Module initialization routine for arithmetic entropy encoding. + */ + +GLOBAL(void) +jinit_arith_encoder (j_compress_ptr cinfo) +{ + arith_entropy_ptr entropy; + int i; + + entropy = (arith_entropy_ptr) + (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, + SIZEOF(arith_entropy_encoder)); + cinfo->entropy = (struct jpeg_entropy_encoder *) entropy; + entropy->pub.start_pass = start_pass; + entropy->pub.finish_pass = finish_pass; + + /* Mark tables unallocated */ + for (i = 0; i < NUM_ARITH_TBLS; i++) { + entropy->dc_stats[i] = NULL; + entropy->ac_stats[i] = NULL; + } + + /* Initialize index for fixed probability estimation */ + entropy->fixed_bin[0] = 113; +} diff --git a/jpeg/jccoefct.c b/jpeg/jccoefct.c new file mode 100644 index 0000000..924a703 --- /dev/null +++ b/jpeg/jccoefct.c @@ -0,0 +1,454 @@ +/* + * jccoefct.c + * + * Copyright (C) 1994-1997, Thomas G. Lane. + * Modified 2003-2011 by Guido Vollbeding. + * This file is part of the Independent JPEG Group's software. + * For conditions of distribution and use, see the accompanying README file. + * + * This file contains the coefficient buffer controller for compression. + * This controller is the top level of the JPEG compressor proper. + * The coefficient buffer lies between forward-DCT and entropy encoding steps. + */ + +#define JPEG_INTERNALS +#include "jinclude.h" +#include "jpeglib.h" + + +/* We use a full-image coefficient buffer when doing Huffman optimization, + * and also for writing multiple-scan JPEG files. In all cases, the DCT + * step is run during the first pass, and subsequent passes need only read + * the buffered coefficients. + */ +#ifdef ENTROPY_OPT_SUPPORTED +#define FULL_COEF_BUFFER_SUPPORTED +#else +#ifdef C_MULTISCAN_FILES_SUPPORTED +#define FULL_COEF_BUFFER_SUPPORTED +#endif +#endif + + +/* Private buffer controller object */ + +typedef struct { + struct jpeg_c_coef_controller pub; /* public fields */ + + JDIMENSION iMCU_row_num; /* iMCU row # within image */ + JDIMENSION mcu_ctr; /* counts MCUs processed in current row */ + int MCU_vert_offset; /* counts MCU rows within iMCU row */ + int MCU_rows_per_iMCU_row; /* number of such rows needed */ + + /* For single-pass compression, it's sufficient to buffer just one MCU + * (although this may prove a bit slow in practice). We allocate a + * workspace of C_MAX_BLOCKS_IN_MCU coefficient blocks, and reuse it for each + * MCU constructed and sent. (On 80x86, the workspace is FAR even though + * it's not really very big; this is to keep the module interfaces unchanged + * when a large coefficient buffer is necessary.) + * In multi-pass modes, this array points to the current MCU's blocks + * within the virtual arrays. + */ + JBLOCKROW MCU_buffer[C_MAX_BLOCKS_IN_MCU]; + + /* In multi-pass modes, we need a virtual block array for each component. */ + jvirt_barray_ptr whole_image[MAX_COMPONENTS]; +} my_coef_controller; + +typedef my_coef_controller * my_coef_ptr; + + +/* Forward declarations */ +METHODDEF(boolean) compress_data + JPP((j_compress_ptr cinfo, JSAMPIMAGE input_buf)); +#ifdef FULL_COEF_BUFFER_SUPPORTED +METHODDEF(boolean) compress_first_pass + JPP((j_compress_ptr cinfo, JSAMPIMAGE input_buf)); +METHODDEF(boolean) compress_output + JPP((j_compress_ptr cinfo, JSAMPIMAGE input_buf)); +#endif + + +LOCAL(void) +start_iMCU_row (j_compress_ptr cinfo) +/* Reset within-iMCU-row counters for a new row */ +{ + my_coef_ptr coef = (my_coef_ptr) cinfo->coef; + + /* In an interleaved scan, an MCU row is the same as an iMCU row. + * In a noninterleaved scan, an iMCU row has v_samp_factor MCU rows. + * But at the bottom of the image, process only what's left. + */ + if (cinfo->comps_in_scan > 1) { + coef->MCU_rows_per_iMCU_row = 1; + } else { + if (coef->iMCU_row_num < (cinfo->total_iMCU_rows-1)) + coef->MCU_rows_per_iMCU_row = cinfo->cur_comp_info[0]->v_samp_factor; + else + coef->MCU_rows_per_iMCU_row = cinfo->cur_comp_info[0]->last_row_height; + } + + coef->mcu_ctr = 0; + coef->MCU_vert_offset = 0; +} + + +/* + * Initialize for a processing pass. + */ + +METHODDEF(void) +start_pass_coef (j_compress_ptr cinfo, J_BUF_MODE pass_mode) +{ + my_coef_ptr coef = (my_coef_ptr) cinfo->coef; + + coef->iMCU_row_num = 0; + start_iMCU_row(cinfo); + + switch (pass_mode) { + case JBUF_PASS_THRU: + if (coef->whole_image[0] != NULL) + ERREXIT(cinfo, JERR_BAD_BUFFER_MODE); + coef->pub.compress_data = compress_data; + break; +#ifdef FULL_COEF_BUFFER_SUPPORTED + case JBUF_SAVE_AND_PASS: + if (coef->whole_image[0] == NULL) + ERREXIT(cinfo, JERR_BAD_BUFFER_MODE); + coef->pub.compress_data = compress_first_pass; + break; + case JBUF_CRANK_DEST: + if (coef->whole_image[0] == NULL) + ERREXIT(cinfo, JERR_BAD_BUFFER_MODE); + coef->pub.compress_data = compress_output; + break; +#endif + default: + ERREXIT(cinfo, JERR_BAD_BUFFER_MODE); + break; + } +} + + +/* + * Process some data in the single-pass case. + * We process the equivalent of one fully interleaved MCU row ("iMCU" row) + * per call, ie, v_samp_factor block rows for each component in the image. + * Returns TRUE if the iMCU row is completed, FALSE if suspended. + * + * NB: input_buf contains a plane for each component in image, + * which we index according to the component's SOF position. + */ + +METHODDEF(boolean) +compress_data (j_compress_ptr cinfo, JSAMPIMAGE input_buf) +{ + my_coef_ptr coef = (my_coef_ptr) cinfo->coef; + JDIMENSION MCU_col_num; /* index of current MCU within row */ + JDIMENSION last_MCU_col = cinfo->MCUs_per_row - 1; + JDIMENSION last_iMCU_row = cinfo->total_iMCU_rows - 1; + int blkn, bi, ci, yindex, yoffset, blockcnt; + JDIMENSION ypos, xpos; + jpeg_component_info *compptr; + forward_DCT_ptr forward_DCT; + + /* Loop to write as much as one whole iMCU row */ + for (yoffset = coef->MCU_vert_offset; yoffset < coef->MCU_rows_per_iMCU_row; + yoffset++) { + for (MCU_col_num = coef->mcu_ctr; MCU_col_num <= last_MCU_col; + MCU_col_num++) { + /* Determine where data comes from in input_buf and do the DCT thing. + * Each call on forward_DCT processes a horizontal row of DCT blocks + * as wide as an MCU; we rely on having allocated the MCU_buffer[] blocks + * sequentially. Dummy blocks at the right or bottom edge are filled in + * specially. The data in them does not matter for image reconstruction, + * so we fill them with values that will encode to the smallest amount of + * data, viz: all zeroes in the AC entries, DC entries equal to previous + * block's DC value. (Thanks to Thomas Kinsman for this idea.) + */ + blkn = 0; + for (ci = 0; ci < cinfo->comps_in_scan; ci++) { + compptr = cinfo->cur_comp_info[ci]; + forward_DCT = cinfo->fdct->forward_DCT[compptr->component_index]; + blockcnt = (MCU_col_num < last_MCU_col) ? compptr->MCU_width + : compptr->last_col_width; + xpos = MCU_col_num * compptr->MCU_sample_width; + ypos = yoffset * compptr->DCT_v_scaled_size; + /* ypos == (yoffset+yindex) * DCTSIZE */ + for (yindex = 0; yindex < compptr->MCU_height; yindex++) { + if (coef->iMCU_row_num < last_iMCU_row || + yoffset+yindex < compptr->last_row_height) { + (*forward_DCT) (cinfo, compptr, + input_buf[compptr->component_index], + coef->MCU_buffer[blkn], + ypos, xpos, (JDIMENSION) blockcnt); + if (blockcnt < compptr->MCU_width) { + /* Create some dummy blocks at the right edge of the image. */ + FMEMZERO((void FAR *) coef->MCU_buffer[blkn + blockcnt], + (compptr->MCU_width - blockcnt) * SIZEOF(JBLOCK)); + for (bi = blockcnt; bi < compptr->MCU_width; bi++) { + coef->MCU_buffer[blkn+bi][0][0] = coef->MCU_buffer[blkn+bi-1][0][0]; + } + } + } else { + /* Create a row of dummy blocks at the bottom of the image. */ + FMEMZERO((void FAR *) coef->MCU_buffer[blkn], + compptr->MCU_width * SIZEOF(JBLOCK)); + for (bi = 0; bi < compptr->MCU_width; bi++) { + coef->MCU_buffer[blkn+bi][0][0] = coef->MCU_buffer[blkn-1][0][0]; + } + } + blkn += compptr->MCU_width; + ypos += compptr->DCT_v_scaled_size; + } + } + /* Try to write the MCU. In event of a suspension failure, we will + * re-DCT the MCU on restart (a bit inefficient, could be fixed...) + */ + if (! (*cinfo->entropy->encode_mcu) (cinfo, coef->MCU_buffer)) { + /* Suspension forced; update state counters and exit */ + coef->MCU_vert_offset = yoffset; + coef->mcu_ctr = MCU_col_num; + return FALSE; + } + } + /* Completed an MCU row, but perhaps not an iMCU row */ + coef->mcu_ctr = 0; + } + /* Completed the iMCU row, advance counters for next one */ + coef->iMCU_row_num++; + start_iMCU_row(cinfo); + return TRUE; +} + + +#ifdef FULL_COEF_BUFFER_SUPPORTED + +/* + * Process some data in the first pass of a multi-pass case. + * We process the equivalent of one fully interleaved MCU row ("iMCU" row) + * per call, ie, v_samp_factor block rows for each component in the image. + * This amount of data is read from the source buffer, DCT'd and quantized, + * and saved into the virtual arrays. We also generate suitable dummy blocks + * as needed at the right and lower edges. (The dummy blocks are constructed + * in the virtual arrays, which have been padded appropriately.) This makes + * it possible for subsequent passes not to worry about real vs. dummy blocks. + * + * We must also emit the data to the entropy encoder. This is conveniently + * done by calling compress_output() after we've loaded the current strip + * of the virtual arrays. + * + * NB: input_buf contains a plane for each component in image. All + * components are DCT'd and loaded into the virtual arrays in this pass. + * However, it may be that only a subset of the components are emitted to + * the entropy encoder during this first pass; be careful about looking + * at the scan-dependent variables (MCU dimensions, etc). + */ + +METHODDEF(boolean) +compress_first_pass (j_compress_ptr cinfo, JSAMPIMAGE input_buf) +{ + my_coef_ptr coef = (my_coef_ptr) cinfo->coef; + JDIMENSION last_iMCU_row = cinfo->total_iMCU_rows - 1; + JDIMENSION blocks_across, MCUs_across, MCUindex; + int bi, ci, h_samp_factor, block_row, block_rows, ndummy; + JCOEF lastDC; + jpeg_component_info *compptr; + JBLOCKARRAY buffer; + JBLOCKROW thisblockrow, lastblockrow; + forward_DCT_ptr forward_DCT; + + for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components; + ci++, compptr++) { + /* Align the virtual buffer for this component. */ + buffer = (*cinfo->mem->access_virt_barray) + ((j_common_ptr) cinfo, coef->whole_image[ci], + coef->iMCU_row_num * compptr->v_samp_factor, + (JDIMENSION) compptr->v_samp_factor, TRUE); + /* Count non-dummy DCT block rows in this iMCU row. */ + if (coef->iMCU_row_num < last_iMCU_row) + block_rows = compptr->v_samp_factor; + else { + /* NB: can't use last_row_height here, since may not be set! */ + block_rows = (int) (compptr->height_in_blocks % compptr->v_samp_factor); + if (block_rows == 0) block_rows = compptr->v_samp_factor; + } + blocks_across = compptr->width_in_blocks; + h_samp_factor = compptr->h_samp_factor; + /* Count number of dummy blocks to be added at the right margin. */ + ndummy = (int) (blocks_across % h_samp_factor); + if (ndummy > 0) + ndummy = h_samp_factor - ndummy; + forward_DCT = cinfo->fdct->forward_DCT[ci]; + /* Perform DCT for all non-dummy blocks in this iMCU row. Each call + * on forward_DCT processes a complete horizontal row of DCT blocks. + */ + for (block_row = 0; block_row < block_rows; block_row++) { + thisblockrow = buffer[block_row]; + (*forward_DCT) (cinfo, compptr, input_buf[ci], thisblockrow, + (JDIMENSION) (block_row * compptr->DCT_v_scaled_size), + (JDIMENSION) 0, blocks_across); + if (ndummy > 0) { + /* Create dummy blocks at the right edge of the image. */ + thisblockrow += blocks_across; /* => first dummy block */ + FMEMZERO((void FAR *) thisblockrow, ndummy * SIZEOF(JBLOCK)); + lastDC = thisblockrow[-1][0]; + for (bi = 0; bi < ndummy; bi++) { + thisblockrow[bi][0] = lastDC; + } + } + } + /* If at end of image, create dummy block rows as needed. + * The tricky part here is that within each MCU, we want the DC values + * of the dummy blocks to match the last real block's DC value. + * This squeezes a few more bytes out of the resulting file... + */ + if (coef->iMCU_row_num == last_iMCU_row) { + blocks_across += ndummy; /* include lower right corner */ + MCUs_across = blocks_across / h_samp_factor; + for (block_row = block_rows; block_row < compptr->v_samp_factor; + block_row++) { + thisblockrow = buffer[block_row]; + lastblockrow = buffer[block_row-1]; + FMEMZERO((void FAR *) thisblockrow, + (size_t) (blocks_across * SIZEOF(JBLOCK))); + for (MCUindex = 0; MCUindex < MCUs_across; MCUindex++) { + lastDC = lastblockrow[h_samp_factor-1][0]; + for (bi = 0; bi < h_samp_factor; bi++) { + thisblockrow[bi][0] = lastDC; + } + thisblockrow += h_samp_factor; /* advance to next MCU in row */ + lastblockrow += h_samp_factor; + } + } + } + } + /* NB: compress_output will increment iMCU_row_num if successful. + * A suspension return will result in redoing all the work above next time. + */ + + /* Emit data to the entropy encoder, sharing code with subsequent passes */ + return compress_output(cinfo, input_buf); +} + + +/* + * Process some data in subsequent passes of a multi-pass case. + * We process the equivalent of one fully interleaved MCU row ("iMCU" row) + * per call, ie, v_samp_factor block rows for each component in the scan. + * The data is obtained from the virtual arrays and fed to the entropy coder. + * Returns TRUE if the iMCU row is completed, FALSE if suspended. + * + * NB: input_buf is ignored; it is likely to be a NULL pointer. + */ + +METHODDEF(boolean) +compress_output (j_compress_ptr cinfo, JSAMPIMAGE input_buf) +{ + my_coef_ptr coef = (my_coef_ptr) cinfo->coef; + JDIMENSION MCU_col_num; /* index of current MCU within row */ + int blkn, ci, xindex, yindex, yoffset; + JDIMENSION start_col; + JBLOCKARRAY buffer[MAX_COMPS_IN_SCAN]; + JBLOCKROW buffer_ptr; + jpeg_component_info *compptr; + + /* Align the virtual buffers for the components used in this scan. + * NB: during first pass, this is safe only because the buffers will + * already be aligned properly, so jmemmgr.c won't need to do any I/O. + */ + for (ci = 0; ci < cinfo->comps_in_scan; ci++) { + compptr = cinfo->cur_comp_info[ci]; + buffer[ci] = (*cinfo->mem->access_virt_barray) + ((j_common_ptr) cinfo, coef->whole_image[compptr->component_index], + coef->iMCU_row_num * compptr->v_samp_factor, + (JDIMENSION) compptr->v_samp_factor, FALSE); + } + + /* Loop to process one whole iMCU row */ + for (yoffset = coef->MCU_vert_offset; yoffset < coef->MCU_rows_per_iMCU_row; + yoffset++) { + for (MCU_col_num = coef->mcu_ctr; MCU_col_num < cinfo->MCUs_per_row; + MCU_col_num++) { + /* Construct list of pointers to DCT blocks belonging to this MCU */ + blkn = 0; /* index of current DCT block within MCU */ + for (ci = 0; ci < cinfo->comps_in_scan; ci++) { + compptr = cinfo->cur_comp_info[ci]; + start_col = MCU_col_num * compptr->MCU_width; + for (yindex = 0; yindex < compptr->MCU_height; yindex++) { + buffer_ptr = buffer[ci][yindex+yoffset] + start_col; + for (xindex = 0; xindex < compptr->MCU_width; xindex++) { + coef->MCU_buffer[blkn++] = buffer_ptr++; + } + } + } + /* Try to write the MCU. */ + if (! (*cinfo->entropy->encode_mcu) (cinfo, coef->MCU_buffer)) { + /* Suspension forced; update state counters and exit */ + coef->MCU_vert_offset = yoffset; + coef->mcu_ctr = MCU_col_num; + return FALSE; + } + } + /* Completed an MCU row, but perhaps not an iMCU row */ + coef->mcu_ctr = 0; + } + /* Completed the iMCU row, advance counters for next one */ + coef->iMCU_row_num++; + start_iMCU_row(cinfo); + return TRUE; +} + +#endif /* FULL_COEF_BUFFER_SUPPORTED */ + + +/* + * Initialize coefficient buffer controller. + */ + +GLOBAL(void) +jinit_c_coef_controller (j_compress_ptr cinfo, boolean need_full_buffer) +{ + my_coef_ptr coef; + + coef = (my_coef_ptr) + (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, + SIZEOF(my_coef_controller)); + cinfo->coef = (struct jpeg_c_coef_controller *) coef; + coef->pub.start_pass = start_pass_coef; + + /* Create the coefficient buffer. */ + if (need_full_buffer) { +#ifdef FULL_COEF_BUFFER_SUPPORTED + /* Allocate a full-image virtual array for each component, */ + /* padded to a multiple of samp_factor DCT blocks in each direction. */ + int ci; + jpeg_component_info *compptr; + + for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components; + ci++, compptr++) { + coef->whole_image[ci] = (*cinfo->mem->request_virt_barray) + ((j_common_ptr) cinfo, JPOOL_IMAGE, FALSE, + (JDIMENSION) jround_up((long) compptr->width_in_blocks, + (long) compptr->h_samp_factor), + (JDIMENSION) jround_up((long) compptr->height_in_blocks, + (long) compptr->v_samp_factor), + (JDIMENSION) compptr->v_samp_factor); + } +#else + ERREXIT(cinfo, JERR_BAD_BUFFER_MODE); +#endif + } else { + /* We only need a single-MCU buffer. */ + JBLOCKROW buffer; + int i; + + buffer = (JBLOCKROW) + (*cinfo->mem->alloc_large) ((j_common_ptr) cinfo, JPOOL_IMAGE, + C_MAX_BLOCKS_IN_MCU * SIZEOF(JBLOCK)); + for (i = 0; i < C_MAX_BLOCKS_IN_MCU; i++) { + coef->MCU_buffer[i] = buffer + i; + } + coef->whole_image[0] = NULL; /* flag for no virtual arrays */ + } +} diff --git a/jpeg/jccolor.c b/jpeg/jccolor.c new file mode 100644 index 0000000..3e2d0e9 --- /dev/null +++ b/jpeg/jccolor.c @@ -0,0 +1,490 @@ +/* + * jccolor.c + * + * Copyright (C) 1991-1996, Thomas G. Lane. + * Modified 2011 by Guido Vollbeding. + * This file is part of the Independent JPEG Group's software. + * For conditions of distribution and use, see the accompanying README file. + * + * This file contains input colorspace conversion routines. + */ + +#define JPEG_INTERNALS +#include "jinclude.h" +#include "jpeglib.h" + + +/* Private subobject */ + +typedef struct { + struct jpeg_color_converter pub; /* public fields */ + + /* Private state for RGB->YCC conversion */ + INT32 * rgb_ycc_tab; /* => table for RGB to YCbCr conversion */ +} my_color_converter; + +typedef my_color_converter * my_cconvert_ptr; + + +/**************** RGB -> YCbCr conversion: most common case **************/ + +/* + * YCbCr is defined per CCIR 601-1, except that Cb and Cr are + * normalized to the range 0..MAXJSAMPLE rather than -0.5 .. 0.5. + * The conversion equations to be implemented are therefore + * Y = 0.29900 * R + 0.58700 * G + 0.11400 * B + * Cb = -0.16874 * R - 0.33126 * G + 0.50000 * B + CENTERJSAMPLE + * Cr = 0.50000 * R - 0.41869 * G - 0.08131 * B + CENTERJSAMPLE + * (These numbers are derived from TIFF 6.0 section 21, dated 3-June-92.) + * Note: older versions of the IJG code used a zero offset of MAXJSAMPLE/2, + * rather than CENTERJSAMPLE, for Cb and Cr. This gave equal positive and + * negative swings for Cb/Cr, but meant that grayscale values (Cb=Cr=0) + * were not represented exactly. Now we sacrifice exact representation of + * maximum red and maximum blue in order to get exact grayscales. + * + * To avoid floating-point arithmetic, we represent the fractional constants + * as integers scaled up by 2^16 (about 4 digits precision); we have to divide + * the products by 2^16, with appropriate rounding, to get the correct answer. + * + * For even more speed, we avoid doing any multiplications in the inner loop + * by precalculating the constants times R,G,B for all possible values. + * For 8-bit JSAMPLEs this is very reasonable (only 256 entries per table); + * for 12-bit samples it is still acceptable. It's not very reasonable for + * 16-bit samples, but if you want lossless storage you shouldn't be changing + * colorspace anyway. + * The CENTERJSAMPLE offsets and the rounding fudge-factor of 0.5 are included + * in the tables to save adding them separately in the inner loop. + */ + +#define SCALEBITS 16 /* speediest right-shift on some machines */ +#define CBCR_OFFSET ((INT32) CENTERJSAMPLE << SCALEBITS) +#define ONE_HALF ((INT32) 1 << (SCALEBITS-1)) +#define FIX(x) ((INT32) ((x) * (1L< Y section */ +#define G_Y_OFF (1*(MAXJSAMPLE+1)) /* offset to G => Y section */ +#define B_Y_OFF (2*(MAXJSAMPLE+1)) /* etc. */ +#define R_CB_OFF (3*(MAXJSAMPLE+1)) +#define G_CB_OFF (4*(MAXJSAMPLE+1)) +#define B_CB_OFF (5*(MAXJSAMPLE+1)) +#define R_CR_OFF B_CB_OFF /* B=>Cb, R=>Cr are the same */ +#define G_CR_OFF (6*(MAXJSAMPLE+1)) +#define B_CR_OFF (7*(MAXJSAMPLE+1)) +#define TABLE_SIZE (8*(MAXJSAMPLE+1)) + + +/* + * Initialize for RGB->YCC colorspace conversion. + */ + +METHODDEF(void) +rgb_ycc_start (j_compress_ptr cinfo) +{ + my_cconvert_ptr cconvert = (my_cconvert_ptr) cinfo->cconvert; + INT32 * rgb_ycc_tab; + INT32 i; + + /* Allocate and fill in the conversion tables. */ + cconvert->rgb_ycc_tab = rgb_ycc_tab = (INT32 *) + (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, + (TABLE_SIZE * SIZEOF(INT32))); + + for (i = 0; i <= MAXJSAMPLE; i++) { + rgb_ycc_tab[i+R_Y_OFF] = FIX(0.29900) * i; + rgb_ycc_tab[i+G_Y_OFF] = FIX(0.58700) * i; + rgb_ycc_tab[i+B_Y_OFF] = FIX(0.11400) * i + ONE_HALF; + rgb_ycc_tab[i+R_CB_OFF] = (-FIX(0.16874)) * i; + rgb_ycc_tab[i+G_CB_OFF] = (-FIX(0.33126)) * i; + /* We use a rounding fudge-factor of 0.5-epsilon for Cb and Cr. + * This ensures that the maximum output will round to MAXJSAMPLE + * not MAXJSAMPLE+1, and thus that we don't have to range-limit. + */ + rgb_ycc_tab[i+B_CB_OFF] = FIX(0.50000) * i + CBCR_OFFSET + ONE_HALF-1; +/* B=>Cb and R=>Cr tables are the same + rgb_ycc_tab[i+R_CR_OFF] = FIX(0.50000) * i + CBCR_OFFSET + ONE_HALF-1; +*/ + rgb_ycc_tab[i+G_CR_OFF] = (-FIX(0.41869)) * i; + rgb_ycc_tab[i+B_CR_OFF] = (-FIX(0.08131)) * i; + } +} + + +/* + * Convert some rows of samples to the JPEG colorspace. + * + * Note that we change from the application's interleaved-pixel format + * to our internal noninterleaved, one-plane-per-component format. + * The input buffer is therefore three times as wide as the output buffer. + * + * A starting row offset is provided only for the output buffer. The caller + * can easily adjust the passed input_buf value to accommodate any row + * offset required on that side. + */ + +METHODDEF(void) +rgb_ycc_convert (j_compress_ptr cinfo, + JSAMPARRAY input_buf, JSAMPIMAGE output_buf, + JDIMENSION output_row, int num_rows) +{ + my_cconvert_ptr cconvert = (my_cconvert_ptr) cinfo->cconvert; + register int r, g, b; + register INT32 * ctab = cconvert->rgb_ycc_tab; + register JSAMPROW inptr; + register JSAMPROW outptr0, outptr1, outptr2; + register JDIMENSION col; + JDIMENSION num_cols = cinfo->image_width; + + while (--num_rows >= 0) { + inptr = *input_buf++; + outptr0 = output_buf[0][output_row]; + outptr1 = output_buf[1][output_row]; + outptr2 = output_buf[2][output_row]; + output_row++; + for (col = 0; col < num_cols; col++) { + r = GETJSAMPLE(inptr[RGB_RED]); + g = GETJSAMPLE(inptr[RGB_GREEN]); + b = GETJSAMPLE(inptr[RGB_BLUE]); + inptr += RGB_PIXELSIZE; + /* If the inputs are 0..MAXJSAMPLE, the outputs of these equations + * must be too; we do not need an explicit range-limiting operation. + * Hence the value being shifted is never negative, and we don't + * need the general RIGHT_SHIFT macro. + */ + /* Y */ + outptr0[col] = (JSAMPLE) + ((ctab[r+R_Y_OFF] + ctab[g+G_Y_OFF] + ctab[b+B_Y_OFF]) + >> SCALEBITS); + /* Cb */ + outptr1[col] = (JSAMPLE) + ((ctab[r+R_CB_OFF] + ctab[g+G_CB_OFF] + ctab[b+B_CB_OFF]) + >> SCALEBITS); + /* Cr */ + outptr2[col] = (JSAMPLE) + ((ctab[r+R_CR_OFF] + ctab[g+G_CR_OFF] + ctab[b+B_CR_OFF]) + >> SCALEBITS); + } + } +} + + +/**************** Cases other than RGB -> YCbCr **************/ + + +/* + * Convert some rows of samples to the JPEG colorspace. + * This version handles RGB->grayscale conversion, which is the same + * as the RGB->Y portion of RGB->YCbCr. + * We assume rgb_ycc_start has been called (we only use the Y tables). + */ + +METHODDEF(void) +rgb_gray_convert (j_compress_ptr cinfo, + JSAMPARRAY input_buf, JSAMPIMAGE output_buf, + JDIMENSION output_row, int num_rows) +{ + my_cconvert_ptr cconvert = (my_cconvert_ptr) cinfo->cconvert; + register int r, g, b; + register INT32 * ctab = cconvert->rgb_ycc_tab; + register JSAMPROW inptr; + register JSAMPROW outptr; + register JDIMENSION col; + JDIMENSION num_cols = cinfo->image_width; + + while (--num_rows >= 0) { + inptr = *input_buf++; + outptr = output_buf[0][output_row]; + output_row++; + for (col = 0; col < num_cols; col++) { + r = GETJSAMPLE(inptr[RGB_RED]); + g = GETJSAMPLE(inptr[RGB_GREEN]); + b = GETJSAMPLE(inptr[RGB_BLUE]); + inptr += RGB_PIXELSIZE; + /* Y */ + outptr[col] = (JSAMPLE) + ((ctab[r+R_Y_OFF] + ctab[g+G_Y_OFF] + ctab[b+B_Y_OFF]) + >> SCALEBITS); + } + } +} + + +/* + * Convert some rows of samples to the JPEG colorspace. + * This version handles Adobe-style CMYK->YCCK conversion, + * where we convert R=1-C, G=1-M, and B=1-Y to YCbCr using the same + * conversion as above, while passing K (black) unchanged. + * We assume rgb_ycc_start has been called. + */ + +METHODDEF(void) +cmyk_ycck_convert (j_compress_ptr cinfo, + JSAMPARRAY input_buf, JSAMPIMAGE output_buf, + JDIMENSION output_row, int num_rows) +{ + my_cconvert_ptr cconvert = (my_cconvert_ptr) cinfo->cconvert; + register int r, g, b; + register INT32 * ctab = cconvert->rgb_ycc_tab; + register JSAMPROW inptr; + register JSAMPROW outptr0, outptr1, outptr2, outptr3; + register JDIMENSION col; + JDIMENSION num_cols = cinfo->image_width; + + while (--num_rows >= 0) { + inptr = *input_buf++; + outptr0 = output_buf[0][output_row]; + outptr1 = output_buf[1][output_row]; + outptr2 = output_buf[2][output_row]; + outptr3 = output_buf[3][output_row]; + output_row++; + for (col = 0; col < num_cols; col++) { + r = MAXJSAMPLE - GETJSAMPLE(inptr[0]); + g = MAXJSAMPLE - GETJSAMPLE(inptr[1]); + b = MAXJSAMPLE - GETJSAMPLE(inptr[2]); + /* K passes through as-is */ + outptr3[col] = inptr[3]; /* don't need GETJSAMPLE here */ + inptr += 4; + /* If the inputs are 0..MAXJSAMPLE, the outputs of these equations + * must be too; we do not need an explicit range-limiting operation. + * Hence the value being shifted is never negative, and we don't + * need the general RIGHT_SHIFT macro. + */ + /* Y */ + outptr0[col] = (JSAMPLE) + ((ctab[r+R_Y_OFF] + ctab[g+G_Y_OFF] + ctab[b+B_Y_OFF]) + >> SCALEBITS); + /* Cb */ + outptr1[col] = (JSAMPLE) + ((ctab[r+R_CB_OFF] + ctab[g+G_CB_OFF] + ctab[b+B_CB_OFF]) + >> SCALEBITS); + /* Cr */ + outptr2[col] = (JSAMPLE) + ((ctab[r+R_CR_OFF] + ctab[g+G_CR_OFF] + ctab[b+B_CR_OFF]) + >> SCALEBITS); + } + } +} + + +/* + * Convert some rows of samples to the JPEG colorspace. + * This version handles grayscale output with no conversion. + * The source can be either plain grayscale or YCbCr (since Y == gray). + */ + +METHODDEF(void) +grayscale_convert (j_compress_ptr cinfo, + JSAMPARRAY input_buf, JSAMPIMAGE output_buf, + JDIMENSION output_row, int num_rows) +{ + register JSAMPROW inptr; + register JSAMPROW outptr; + register JDIMENSION col; + JDIMENSION num_cols = cinfo->image_width; + int instride = cinfo->input_components; + + while (--num_rows >= 0) { + inptr = *input_buf++; + outptr = output_buf[0][output_row]; + output_row++; + for (col = 0; col < num_cols; col++) { + outptr[col] = inptr[0]; /* don't need GETJSAMPLE() here */ + inptr += instride; + } + } +} + + +/* + * Convert some rows of samples to the JPEG colorspace. + * No colorspace conversion, but change from interleaved + * to separate-planes representation. + */ + +METHODDEF(void) +rgb_convert (j_compress_ptr cinfo, + JSAMPARRAY input_buf, JSAMPIMAGE output_buf, + JDIMENSION output_row, int num_rows) +{ + register JSAMPROW inptr; + register JSAMPROW outptr0, outptr1, outptr2; + register JDIMENSION col; + JDIMENSION num_cols = cinfo->image_width; + + while (--num_rows >= 0) { + inptr = *input_buf++; + outptr0 = output_buf[0][output_row]; + outptr1 = output_buf[1][output_row]; + outptr2 = output_buf[2][output_row]; + output_row++; + for (col = 0; col < num_cols; col++) { + /* We can dispense with GETJSAMPLE() here */ + outptr0[col] = inptr[RGB_RED]; + outptr1[col] = inptr[RGB_GREEN]; + outptr2[col] = inptr[RGB_BLUE]; + inptr += RGB_PIXELSIZE; + } + } +} + + +/* + * Convert some rows of samples to the JPEG colorspace. + * This version handles multi-component colorspaces without conversion. + * We assume input_components == num_components. + */ + +METHODDEF(void) +null_convert (j_compress_ptr cinfo, + JSAMPARRAY input_buf, JSAMPIMAGE output_buf, + JDIMENSION output_row, int num_rows) +{ + register JSAMPROW inptr; + register JSAMPROW outptr; + register JDIMENSION col; + register int ci; + int nc = cinfo->num_components; + JDIMENSION num_cols = cinfo->image_width; + + while (--num_rows >= 0) { + /* It seems fastest to make a separate pass for each component. */ + for (ci = 0; ci < nc; ci++) { + inptr = *input_buf; + outptr = output_buf[ci][output_row]; + for (col = 0; col < num_cols; col++) { + outptr[col] = inptr[ci]; /* don't need GETJSAMPLE() here */ + inptr += nc; + } + } + input_buf++; + output_row++; + } +} + + +/* + * Empty method for start_pass. + */ + +METHODDEF(void) +null_method (j_compress_ptr cinfo) +{ + /* no work needed */ +} + + +/* + * Module initialization routine for input colorspace conversion. + */ + +GLOBAL(void) +jinit_color_converter (j_compress_ptr cinfo) +{ + my_cconvert_ptr cconvert; + + cconvert = (my_cconvert_ptr) + (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, + SIZEOF(my_color_converter)); + cinfo->cconvert = (struct jpeg_color_converter *) cconvert; + /* set start_pass to null method until we find out differently */ + cconvert->pub.start_pass = null_method; + + /* Make sure input_components agrees with in_color_space */ + switch (cinfo->in_color_space) { + case JCS_GRAYSCALE: + if (cinfo->input_components != 1) + ERREXIT(cinfo, JERR_BAD_IN_COLORSPACE); + break; + + case JCS_RGB: + if (cinfo->input_components != RGB_PIXELSIZE) + ERREXIT(cinfo, JERR_BAD_IN_COLORSPACE); + break; + + case JCS_YCbCr: + if (cinfo->input_components != 3) + ERREXIT(cinfo, JERR_BAD_IN_COLORSPACE); + break; + + case JCS_CMYK: + case JCS_YCCK: + if (cinfo->input_components != 4) + ERREXIT(cinfo, JERR_BAD_IN_COLORSPACE); + break; + + default: /* JCS_UNKNOWN can be anything */ + if (cinfo->input_components < 1) + ERREXIT(cinfo, JERR_BAD_IN_COLORSPACE); + break; + } + + /* Check num_components, set conversion method based on requested space */ + switch (cinfo->jpeg_color_space) { + case JCS_GRAYSCALE: + if (cinfo->num_components != 1) + ERREXIT(cinfo, JERR_BAD_J_COLORSPACE); + if (cinfo->in_color_space == JCS_GRAYSCALE || + cinfo->in_color_space == JCS_YCbCr) + cconvert->pub.color_convert = grayscale_convert; + else if (cinfo->in_color_space == JCS_RGB) { + cconvert->pub.start_pass = rgb_ycc_start; + cconvert->pub.color_convert = rgb_gray_convert; + } else + ERREXIT(cinfo, JERR_CONVERSION_NOTIMPL); + break; + + case JCS_RGB: + if (cinfo->num_components != 3) + ERREXIT(cinfo, JERR_BAD_J_COLORSPACE); + if (cinfo->in_color_space == JCS_RGB) + cconvert->pub.color_convert = rgb_convert; + else + ERREXIT(cinfo, JERR_CONVERSION_NOTIMPL); + break; + + case JCS_YCbCr: + if (cinfo->num_components != 3) + ERREXIT(cinfo, JERR_BAD_J_COLORSPACE); + if (cinfo->in_color_space == JCS_RGB) { + cconvert->pub.start_pass = rgb_ycc_start; + cconvert->pub.color_convert = rgb_ycc_convert; + } else if (cinfo->in_color_space == JCS_YCbCr) + cconvert->pub.color_convert = null_convert; + else + ERREXIT(cinfo, JERR_CONVERSION_NOTIMPL); + break; + + case JCS_CMYK: + if (cinfo->num_components != 4) + ERREXIT(cinfo, JERR_BAD_J_COLORSPACE); + if (cinfo->in_color_space == JCS_CMYK) + cconvert->pub.color_convert = null_convert; + else + ERREXIT(cinfo, JERR_CONVERSION_NOTIMPL); + break; + + case JCS_YCCK: + if (cinfo->num_components != 4) + ERREXIT(cinfo, JERR_BAD_J_COLORSPACE); + if (cinfo->in_color_space == JCS_CMYK) { + cconvert->pub.start_pass = rgb_ycc_start; + cconvert->pub.color_convert = cmyk_ycck_convert; + } else if (cinfo->in_color_space == JCS_YCCK) + cconvert->pub.color_convert = null_convert; + else + ERREXIT(cinfo, JERR_CONVERSION_NOTIMPL); + break; + + default: /* allow null conversion of JCS_UNKNOWN */ + if (cinfo->jpeg_color_space != cinfo->in_color_space || + cinfo->num_components != cinfo->input_components) + ERREXIT(cinfo, JERR_CONVERSION_NOTIMPL); + cconvert->pub.color_convert = null_convert; + break; + } +} diff --git a/jpeg/jcdctmgr.c b/jpeg/jcdctmgr.c new file mode 100644 index 0000000..0bbdbb6 --- /dev/null +++ b/jpeg/jcdctmgr.c @@ -0,0 +1,482 @@ +/* + * jcdctmgr.c + * + * Copyright (C) 1994-1996, Thomas G. Lane. + * This file is part of the Independent JPEG Group's software. + * For conditions of distribution and use, see the accompanying README file. + * + * This file contains the forward-DCT management logic. + * This code selects a particular DCT implementation to be used, + * and it performs related housekeeping chores including coefficient + * quantization. + */ + +#define JPEG_INTERNALS +#include "jinclude.h" +#include "jpeglib.h" +#include "jdct.h" /* Private declarations for DCT subsystem */ + + +/* Private subobject for this module */ + +typedef struct { + struct jpeg_forward_dct pub; /* public fields */ + + /* Pointer to the DCT routine actually in use */ + forward_DCT_method_ptr do_dct[MAX_COMPONENTS]; + + /* The actual post-DCT divisors --- not identical to the quant table + * entries, because of scaling (especially for an unnormalized DCT). + * Each table is given in normal array order. + */ + DCTELEM * divisors[NUM_QUANT_TBLS]; + +#ifdef DCT_FLOAT_SUPPORTED + /* Same as above for the floating-point case. */ + float_DCT_method_ptr do_float_dct[MAX_COMPONENTS]; + FAST_FLOAT * float_divisors[NUM_QUANT_TBLS]; +#endif +} my_fdct_controller; + +typedef my_fdct_controller * my_fdct_ptr; + + +/* The current scaled-DCT routines require ISLOW-style divisor tables, + * so be sure to compile that code if either ISLOW or SCALING is requested. + */ +#ifdef DCT_ISLOW_SUPPORTED +#define PROVIDE_ISLOW_TABLES +#else +#ifdef DCT_SCALING_SUPPORTED +#define PROVIDE_ISLOW_TABLES +#endif +#endif + + +/* + * Perform forward DCT on one or more blocks of a component. + * + * The input samples are taken from the sample_data[] array starting at + * position start_row/start_col, and moving to the right for any additional + * blocks. The quantized coefficients are returned in coef_blocks[]. + */ + +METHODDEF(void) +forward_DCT (j_compress_ptr cinfo, jpeg_component_info * compptr, + JSAMPARRAY sample_data, JBLOCKROW coef_blocks, + JDIMENSION start_row, JDIMENSION start_col, + JDIMENSION num_blocks) +/* This version is used for integer DCT implementations. */ +{ + /* This routine is heavily used, so it's worth coding it tightly. */ + my_fdct_ptr fdct = (my_fdct_ptr) cinfo->fdct; + forward_DCT_method_ptr do_dct = fdct->do_dct[compptr->component_index]; + DCTELEM * divisors = fdct->divisors[compptr->quant_tbl_no]; + DCTELEM workspace[DCTSIZE2]; /* work area for FDCT subroutine */ + JDIMENSION bi; + + sample_data += start_row; /* fold in the vertical offset once */ + + for (bi = 0; bi < num_blocks; bi++, start_col += compptr->DCT_h_scaled_size) { + /* Perform the DCT */ + (*do_dct) (workspace, sample_data, start_col); + + /* Quantize/descale the coefficients, and store into coef_blocks[] */ + { register DCTELEM temp, qval; + register int i; + register JCOEFPTR output_ptr = coef_blocks[bi]; + + for (i = 0; i < DCTSIZE2; i++) { + qval = divisors[i]; + temp = workspace[i]; + /* Divide the coefficient value by qval, ensuring proper rounding. + * Since C does not specify the direction of rounding for negative + * quotients, we have to force the dividend positive for portability. + * + * In most files, at least half of the output values will be zero + * (at default quantization settings, more like three-quarters...) + * so we should ensure that this case is fast. On many machines, + * a comparison is enough cheaper than a divide to make a special test + * a win. Since both inputs will be nonnegative, we need only test + * for a < b to discover whether a/b is 0. + * If your machine's division is fast enough, define FAST_DIVIDE. + */ +#ifdef FAST_DIVIDE +#define DIVIDE_BY(a,b) a /= b +#else +#define DIVIDE_BY(a,b) if (a >= b) a /= b; else a = 0 +#endif + if (temp < 0) { + temp = -temp; + temp += qval>>1; /* for rounding */ + DIVIDE_BY(temp, qval); + temp = -temp; + } else { + temp += qval>>1; /* for rounding */ + DIVIDE_BY(temp, qval); + } + output_ptr[i] = (JCOEF) temp; + } + } + } +} + + +#ifdef DCT_FLOAT_SUPPORTED + +METHODDEF(void) +forward_DCT_float (j_compress_ptr cinfo, jpeg_component_info * compptr, + JSAMPARRAY sample_data, JBLOCKROW coef_blocks, + JDIMENSION start_row, JDIMENSION start_col, + JDIMENSION num_blocks) +/* This version is used for floating-point DCT implementations. */ +{ + /* This routine is heavily used, so it's worth coding it tightly. */ + my_fdct_ptr fdct = (my_fdct_ptr) cinfo->fdct; + float_DCT_method_ptr do_dct = fdct->do_float_dct[compptr->component_index]; + FAST_FLOAT * divisors = fdct->float_divisors[compptr->quant_tbl_no]; + FAST_FLOAT workspace[DCTSIZE2]; /* work area for FDCT subroutine */ + JDIMENSION bi; + + sample_data += start_row; /* fold in the vertical offset once */ + + for (bi = 0; bi < num_blocks; bi++, start_col += compptr->DCT_h_scaled_size) { + /* Perform the DCT */ + (*do_dct) (workspace, sample_data, start_col); + + /* Quantize/descale the coefficients, and store into coef_blocks[] */ + { register FAST_FLOAT temp; + register int i; + register JCOEFPTR output_ptr = coef_blocks[bi]; + + for (i = 0; i < DCTSIZE2; i++) { + /* Apply the quantization and scaling factor */ + temp = workspace[i] * divisors[i]; + /* Round to nearest integer. + * Since C does not specify the direction of rounding for negative + * quotients, we have to force the dividend positive for portability. + * The maximum coefficient size is +-16K (for 12-bit data), so this + * code should work for either 16-bit or 32-bit ints. + */ + output_ptr[i] = (JCOEF) ((int) (temp + (FAST_FLOAT) 16384.5) - 16384); + } + } + } +} + +#endif /* DCT_FLOAT_SUPPORTED */ + + +/* + * Initialize for a processing pass. + * Verify that all referenced Q-tables are present, and set up + * the divisor table for each one. + * In the current implementation, DCT of all components is done during + * the first pass, even if only some components will be output in the + * first scan. Hence all components should be examined here. + */ + +METHODDEF(void) +start_pass_fdctmgr (j_compress_ptr cinfo) +{ + my_fdct_ptr fdct = (my_fdct_ptr) cinfo->fdct; + int ci, qtblno, i; + jpeg_component_info *compptr; + int method = 0; + JQUANT_TBL * qtbl; + DCTELEM * dtbl; + + for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components; + ci++, compptr++) { + /* Select the proper DCT routine for this component's scaling */ + switch ((compptr->DCT_h_scaled_size << 8) + compptr->DCT_v_scaled_size) { +#ifdef DCT_SCALING_SUPPORTED + case ((1 << 8) + 1): + fdct->do_dct[ci] = jpeg_fdct_1x1; + method = JDCT_ISLOW; /* jfdctint uses islow-style table */ + break; + case ((2 << 8) + 2): + fdct->do_dct[ci] = jpeg_fdct_2x2; + method = JDCT_ISLOW; /* jfdctint uses islow-style table */ + break; + case ((3 << 8) + 3): + fdct->do_dct[ci] = jpeg_fdct_3x3; + method = JDCT_ISLOW; /* jfdctint uses islow-style table */ + break; + case ((4 << 8) + 4): + fdct->do_dct[ci] = jpeg_fdct_4x4; + method = JDCT_ISLOW; /* jfdctint uses islow-style table */ + break; + case ((5 << 8) + 5): + fdct->do_dct[ci] = jpeg_fdct_5x5; + method = JDCT_ISLOW; /* jfdctint uses islow-style table */ + break; + case ((6 << 8) + 6): + fdct->do_dct[ci] = jpeg_fdct_6x6; + method = JDCT_ISLOW; /* jfdctint uses islow-style table */ + break; + case ((7 << 8) + 7): + fdct->do_dct[ci] = jpeg_fdct_7x7; + method = JDCT_ISLOW; /* jfdctint uses islow-style table */ + break; + case ((9 << 8) + 9): + fdct->do_dct[ci] = jpeg_fdct_9x9; + method = JDCT_ISLOW; /* jfdctint uses islow-style table */ + break; + case ((10 << 8) + 10): + fdct->do_dct[ci] = jpeg_fdct_10x10; + method = JDCT_ISLOW; /* jfdctint uses islow-style table */ + break; + case ((11 << 8) + 11): + fdct->do_dct[ci] = jpeg_fdct_11x11; + method = JDCT_ISLOW; /* jfdctint uses islow-style table */ + break; + case ((12 << 8) + 12): + fdct->do_dct[ci] = jpeg_fdct_12x12; + method = JDCT_ISLOW; /* jfdctint uses islow-style table */ + break; + case ((13 << 8) + 13): + fdct->do_dct[ci] = jpeg_fdct_13x13; + method = JDCT_ISLOW; /* jfdctint uses islow-style table */ + break; + case ((14 << 8) + 14): + fdct->do_dct[ci] = jpeg_fdct_14x14; + method = JDCT_ISLOW; /* jfdctint uses islow-style table */ + break; + case ((15 << 8) + 15): + fdct->do_dct[ci] = jpeg_fdct_15x15; + method = JDCT_ISLOW; /* jfdctint uses islow-style table */ + break; + case ((16 << 8) + 16): + fdct->do_dct[ci] = jpeg_fdct_16x16; + method = JDCT_ISLOW; /* jfdctint uses islow-style table */ + break; + case ((16 << 8) + 8): + fdct->do_dct[ci] = jpeg_fdct_16x8; + method = JDCT_ISLOW; /* jfdctint uses islow-style table */ + break; + case ((14 << 8) + 7): + fdct->do_dct[ci] = jpeg_fdct_14x7; + method = JDCT_ISLOW; /* jfdctint uses islow-style table */ + break; + case ((12 << 8) + 6): + fdct->do_dct[ci] = jpeg_fdct_12x6; + method = JDCT_ISLOW; /* jfdctint uses islow-style table */ + break; + case ((10 << 8) + 5): + fdct->do_dct[ci] = jpeg_fdct_10x5; + method = JDCT_ISLOW; /* jfdctint uses islow-style table */ + break; + case ((8 << 8) + 4): + fdct->do_dct[ci] = jpeg_fdct_8x4; + method = JDCT_ISLOW; /* jfdctint uses islow-style table */ + break; + case ((6 << 8) + 3): + fdct->do_dct[ci] = jpeg_fdct_6x3; + method = JDCT_ISLOW; /* jfdctint uses islow-style table */ + break; + case ((4 << 8) + 2): + fdct->do_dct[ci] = jpeg_fdct_4x2; + method = JDCT_ISLOW; /* jfdctint uses islow-style table */ + break; + case ((2 << 8) + 1): + fdct->do_dct[ci] = jpeg_fdct_2x1; + method = JDCT_ISLOW; /* jfdctint uses islow-style table */ + break; + case ((8 << 8) + 16): + fdct->do_dct[ci] = jpeg_fdct_8x16; + method = JDCT_ISLOW; /* jfdctint uses islow-style table */ + break; + case ((7 << 8) + 14): + fdct->do_dct[ci] = jpeg_fdct_7x14; + method = JDCT_ISLOW; /* jfdctint uses islow-style table */ + break; + case ((6 << 8) + 12): + fdct->do_dct[ci] = jpeg_fdct_6x12; + method = JDCT_ISLOW; /* jfdctint uses islow-style table */ + break; + case ((5 << 8) + 10): + fdct->do_dct[ci] = jpeg_fdct_5x10; + method = JDCT_ISLOW; /* jfdctint uses islow-style table */ + break; + case ((4 << 8) + 8): + fdct->do_dct[ci] = jpeg_fdct_4x8; + method = JDCT_ISLOW; /* jfdctint uses islow-style table */ + break; + case ((3 << 8) + 6): + fdct->do_dct[ci] = jpeg_fdct_3x6; + method = JDCT_ISLOW; /* jfdctint uses islow-style table */ + break; + case ((2 << 8) + 4): + fdct->do_dct[ci] = jpeg_fdct_2x4; + method = JDCT_ISLOW; /* jfdctint uses islow-style table */ + break; + case ((1 << 8) + 2): + fdct->do_dct[ci] = jpeg_fdct_1x2; + method = JDCT_ISLOW; /* jfdctint uses islow-style table */ + break; +#endif + case ((DCTSIZE << 8) + DCTSIZE): + switch (cinfo->dct_method) { +#ifdef DCT_ISLOW_SUPPORTED + case JDCT_ISLOW: + fdct->do_dct[ci] = jpeg_fdct_islow; + method = JDCT_ISLOW; + break; +#endif +#ifdef DCT_IFAST_SUPPORTED + case JDCT_IFAST: + fdct->do_dct[ci] = jpeg_fdct_ifast; + method = JDCT_IFAST; + break; +#endif +#ifdef DCT_FLOAT_SUPPORTED + case JDCT_FLOAT: + fdct->do_float_dct[ci] = jpeg_fdct_float; + method = JDCT_FLOAT; + break; +#endif + default: + ERREXIT(cinfo, JERR_NOT_COMPILED); + break; + } + break; + default: + ERREXIT2(cinfo, JERR_BAD_DCTSIZE, + compptr->DCT_h_scaled_size, compptr->DCT_v_scaled_size); + break; + } + qtblno = compptr->quant_tbl_no; + /* Make sure specified quantization table is present */ + if (qtblno < 0 || qtblno >= NUM_QUANT_TBLS || + cinfo->quant_tbl_ptrs[qtblno] == NULL) + ERREXIT1(cinfo, JERR_NO_QUANT_TABLE, qtblno); + qtbl = cinfo->quant_tbl_ptrs[qtblno]; + /* Compute divisors for this quant table */ + /* We may do this more than once for same table, but it's not a big deal */ + switch (method) { +#ifdef PROVIDE_ISLOW_TABLES + case JDCT_ISLOW: + /* For LL&M IDCT method, divisors are equal to raw quantization + * coefficients multiplied by 8 (to counteract scaling). + */ + if (fdct->divisors[qtblno] == NULL) { + fdct->divisors[qtblno] = (DCTELEM *) + (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, + DCTSIZE2 * SIZEOF(DCTELEM)); + } + dtbl = fdct->divisors[qtblno]; + for (i = 0; i < DCTSIZE2; i++) { + dtbl[i] = ((DCTELEM) qtbl->quantval[i]) << 3; + } + fdct->pub.forward_DCT[ci] = forward_DCT; + break; +#endif +#ifdef DCT_IFAST_SUPPORTED + case JDCT_IFAST: + { + /* For AA&N IDCT method, divisors are equal to quantization + * coefficients scaled by scalefactor[row]*scalefactor[col], where + * scalefactor[0] = 1 + * scalefactor[k] = cos(k*PI/16) * sqrt(2) for k=1..7 + * We apply a further scale factor of 8. + */ +#define CONST_BITS 14 + static const INT16 aanscales[DCTSIZE2] = { + /* precomputed values scaled up by 14 bits */ + 16384, 22725, 21407, 19266, 16384, 12873, 8867, 4520, + 22725, 31521, 29692, 26722, 22725, 17855, 12299, 6270, + 21407, 29692, 27969, 25172, 21407, 16819, 11585, 5906, + 19266, 26722, 25172, 22654, 19266, 15137, 10426, 5315, + 16384, 22725, 21407, 19266, 16384, 12873, 8867, 4520, + 12873, 17855, 16819, 15137, 12873, 10114, 6967, 3552, + 8867, 12299, 11585, 10426, 8867, 6967, 4799, 2446, + 4520, 6270, 5906, 5315, 4520, 3552, 2446, 1247 + }; + SHIFT_TEMPS + + if (fdct->divisors[qtblno] == NULL) { + fdct->divisors[qtblno] = (DCTELEM *) + (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, + DCTSIZE2 * SIZEOF(DCTELEM)); + } + dtbl = fdct->divisors[qtblno]; + for (i = 0; i < DCTSIZE2; i++) { + dtbl[i] = (DCTELEM) + DESCALE(MULTIPLY16V16((INT32) qtbl->quantval[i], + (INT32) aanscales[i]), + CONST_BITS-3); + } + } + fdct->pub.forward_DCT[ci] = forward_DCT; + break; +#endif +#ifdef DCT_FLOAT_SUPPORTED + case JDCT_FLOAT: + { + /* For float AA&N IDCT method, divisors are equal to quantization + * coefficients scaled by scalefactor[row]*scalefactor[col], where + * scalefactor[0] = 1 + * scalefactor[k] = cos(k*PI/16) * sqrt(2) for k=1..7 + * We apply a further scale factor of 8. + * What's actually stored is 1/divisor so that the inner loop can + * use a multiplication rather than a division. + */ + FAST_FLOAT * fdtbl; + int row, col; + static const double aanscalefactor[DCTSIZE] = { + 1.0, 1.387039845, 1.306562965, 1.175875602, + 1.0, 0.785694958, 0.541196100, 0.275899379 + }; + + if (fdct->float_divisors[qtblno] == NULL) { + fdct->float_divisors[qtblno] = (FAST_FLOAT *) + (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, + DCTSIZE2 * SIZEOF(FAST_FLOAT)); + } + fdtbl = fdct->float_divisors[qtblno]; + i = 0; + for (row = 0; row < DCTSIZE; row++) { + for (col = 0; col < DCTSIZE; col++) { + fdtbl[i] = (FAST_FLOAT) + (1.0 / (((double) qtbl->quantval[i] * + aanscalefactor[row] * aanscalefactor[col] * 8.0))); + i++; + } + } + } + fdct->pub.forward_DCT[ci] = forward_DCT_float; + break; +#endif + default: + ERREXIT(cinfo, JERR_NOT_COMPILED); + break; + } + } +} + + +/* + * Initialize FDCT manager. + */ + +GLOBAL(void) +jinit_forward_dct (j_compress_ptr cinfo) +{ + my_fdct_ptr fdct; + int i; + + fdct = (my_fdct_ptr) + (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, + SIZEOF(my_fdct_controller)); + cinfo->fdct = (struct jpeg_forward_dct *) fdct; + fdct->pub.start_pass = start_pass_fdctmgr; + + /* Mark divisor tables unallocated */ + for (i = 0; i < NUM_QUANT_TBLS; i++) { + fdct->divisors[i] = NULL; +#ifdef DCT_FLOAT_SUPPORTED + fdct->float_divisors[i] = NULL; +#endif + } +} diff --git a/jpeg/jchuff.c b/jpeg/jchuff.c new file mode 100644 index 0000000..257d7aa --- /dev/null +++ b/jpeg/jchuff.c @@ -0,0 +1,1576 @@ +/* + * jchuff.c + * + * Copyright (C) 1991-1997, Thomas G. Lane. + * Modified 2006-2009 by Guido Vollbeding. + * This file is part of the Independent JPEG Group's software. + * For conditions of distribution and use, see the accompanying README file. + * + * This file contains Huffman entropy encoding routines. + * Both sequential and progressive modes are supported in this single module. + * + * Much of the complexity here has to do with supporting output suspension. + * If the data destination module demands suspension, we want to be able to + * back up to the start of the current MCU. To do this, we copy state + * variables into local working storage, and update them back to the + * permanent JPEG objects only upon successful completion of an MCU. + * + * We do not support output suspension for the progressive JPEG mode, since + * the library currently does not allow multiple-scan files to be written + * with output suspension. + */ + +#define JPEG_INTERNALS +#include "jinclude.h" +#include "jpeglib.h" + + +/* The legal range of a DCT coefficient is + * -1024 .. +1023 for 8-bit data; + * -16384 .. +16383 for 12-bit data. + * Hence the magnitude should always fit in 10 or 14 bits respectively. + */ + +#if BITS_IN_JSAMPLE == 8 +#define MAX_COEF_BITS 10 +#else +#define MAX_COEF_BITS 14 +#endif + +/* Derived data constructed for each Huffman table */ + +typedef struct { + unsigned int ehufco[256]; /* code for each symbol */ + char ehufsi[256]; /* length of code for each symbol */ + /* If no code has been allocated for a symbol S, ehufsi[S] contains 0 */ +} c_derived_tbl; + + +/* Expanded entropy encoder object for Huffman encoding. + * + * The savable_state subrecord contains fields that change within an MCU, + * but must not be updated permanently until we complete the MCU. + */ + +typedef struct { + INT32 put_buffer; /* current bit-accumulation buffer */ + int put_bits; /* # of bits now in it */ + int last_dc_val[MAX_COMPS_IN_SCAN]; /* last DC coef for each component */ +} savable_state; + +/* This macro is to work around compilers with missing or broken + * structure assignment. You'll need to fix this code if you have + * such a compiler and you change MAX_COMPS_IN_SCAN. + */ + +#ifndef NO_STRUCT_ASSIGN +#define ASSIGN_STATE(dest,src) ((dest) = (src)) +#else +#if MAX_COMPS_IN_SCAN == 4 +#define ASSIGN_STATE(dest,src) \ + ((dest).put_buffer = (src).put_buffer, \ + (dest).put_bits = (src).put_bits, \ + (dest).last_dc_val[0] = (src).last_dc_val[0], \ + (dest).last_dc_val[1] = (src).last_dc_val[1], \ + (dest).last_dc_val[2] = (src).last_dc_val[2], \ + (dest).last_dc_val[3] = (src).last_dc_val[3]) +#endif +#endif + + +typedef struct { + struct jpeg_entropy_encoder pub; /* public fields */ + + savable_state saved; /* Bit buffer & DC state at start of MCU */ + + /* These fields are NOT loaded into local working state. */ + unsigned int restarts_to_go; /* MCUs left in this restart interval */ + int next_restart_num; /* next restart number to write (0-7) */ + + /* Pointers to derived tables (these workspaces have image lifespan) */ + c_derived_tbl * dc_derived_tbls[NUM_HUFF_TBLS]; + c_derived_tbl * ac_derived_tbls[NUM_HUFF_TBLS]; + + /* Statistics tables for optimization */ + long * dc_count_ptrs[NUM_HUFF_TBLS]; + long * ac_count_ptrs[NUM_HUFF_TBLS]; + + /* Following fields used only in progressive mode */ + + /* Mode flag: TRUE for optimization, FALSE for actual data output */ + boolean gather_statistics; + + /* next_output_byte/free_in_buffer are local copies of cinfo->dest fields. + */ + JOCTET * next_output_byte; /* => next byte to write in buffer */ + size_t free_in_buffer; /* # of byte spaces remaining in buffer */ + j_compress_ptr cinfo; /* link to cinfo (needed for dump_buffer) */ + + /* Coding status for AC components */ + int ac_tbl_no; /* the table number of the single component */ + unsigned int EOBRUN; /* run length of EOBs */ + unsigned int BE; /* # of buffered correction bits before MCU */ + char * bit_buffer; /* buffer for correction bits (1 per char) */ + /* packing correction bits tightly would save some space but cost time... */ +} huff_entropy_encoder; + +typedef huff_entropy_encoder * huff_entropy_ptr; + +/* Working state while writing an MCU (sequential mode). + * This struct contains all the fields that are needed by subroutines. + */ + +typedef struct { + JOCTET * next_output_byte; /* => next byte to write in buffer */ + size_t free_in_buffer; /* # of byte spaces remaining in buffer */ + savable_state cur; /* Current bit buffer & DC state */ + j_compress_ptr cinfo; /* dump_buffer needs access to this */ +} working_state; + +/* MAX_CORR_BITS is the number of bits the AC refinement correction-bit + * buffer can hold. Larger sizes may slightly improve compression, but + * 1000 is already well into the realm of overkill. + * The minimum safe size is 64 bits. + */ + +#define MAX_CORR_BITS 1000 /* Max # of correction bits I can buffer */ + +/* IRIGHT_SHIFT is like RIGHT_SHIFT, but works on int rather than INT32. + * We assume that int right shift is unsigned if INT32 right shift is, + * which should be safe. + */ + +#ifdef RIGHT_SHIFT_IS_UNSIGNED +#define ISHIFT_TEMPS int ishift_temp; +#define IRIGHT_SHIFT(x,shft) \ + ((ishift_temp = (x)) < 0 ? \ + (ishift_temp >> (shft)) | ((~0) << (16-(shft))) : \ + (ishift_temp >> (shft))) +#else +#define ISHIFT_TEMPS +#define IRIGHT_SHIFT(x,shft) ((x) >> (shft)) +#endif + + +/* + * Compute the derived values for a Huffman table. + * This routine also performs some validation checks on the table. + */ + +LOCAL(void) +jpeg_make_c_derived_tbl (j_compress_ptr cinfo, boolean isDC, int tblno, + c_derived_tbl ** pdtbl) +{ + JHUFF_TBL *htbl; + c_derived_tbl *dtbl; + int p, i, l, lastp, si, maxsymbol; + char huffsize[257]; + unsigned int huffcode[257]; + unsigned int code; + + /* Note that huffsize[] and huffcode[] are filled in code-length order, + * paralleling the order of the symbols themselves in htbl->huffval[]. + */ + + /* Find the input Huffman table */ + if (tblno < 0 || tblno >= NUM_HUFF_TBLS) + ERREXIT1(cinfo, JERR_NO_HUFF_TABLE, tblno); + htbl = + isDC ? cinfo->dc_huff_tbl_ptrs[tblno] : cinfo->ac_huff_tbl_ptrs[tblno]; + if (htbl == NULL) + ERREXIT1(cinfo, JERR_NO_HUFF_TABLE, tblno); + + /* Allocate a workspace if we haven't already done so. */ + if (*pdtbl == NULL) + *pdtbl = (c_derived_tbl *) + (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, + SIZEOF(c_derived_tbl)); + dtbl = *pdtbl; + + /* Figure C.1: make table of Huffman code length for each symbol */ + + p = 0; + for (l = 1; l <= 16; l++) { + i = (int) htbl->bits[l]; + if (i < 0 || p + i > 256) /* protect against table overrun */ + ERREXIT(cinfo, JERR_BAD_HUFF_TABLE); + while (i--) + huffsize[p++] = (char) l; + } + huffsize[p] = 0; + lastp = p; + + /* Figure C.2: generate the codes themselves */ + /* We also validate that the counts represent a legal Huffman code tree. */ + + code = 0; + si = huffsize[0]; + p = 0; + while (huffsize[p]) { + while (((int) huffsize[p]) == si) { + huffcode[p++] = code; + code++; + } + /* code is now 1 more than the last code used for codelength si; but + * it must still fit in si bits, since no code is allowed to be all ones. + */ + if (((INT32) code) >= (((INT32) 1) << si)) + ERREXIT(cinfo, JERR_BAD_HUFF_TABLE); + code <<= 1; + si++; + } + + /* Figure C.3: generate encoding tables */ + /* These are code and size indexed by symbol value */ + + /* Set all codeless symbols to have code length 0; + * this lets us detect duplicate VAL entries here, and later + * allows emit_bits to detect any attempt to emit such symbols. + */ + MEMZERO(dtbl->ehufsi, SIZEOF(dtbl->ehufsi)); + + /* This is also a convenient place to check for out-of-range + * and duplicated VAL entries. We allow 0..255 for AC symbols + * but only 0..15 for DC. (We could constrain them further + * based on data depth and mode, but this seems enough.) + */ + maxsymbol = isDC ? 15 : 255; + + for (p = 0; p < lastp; p++) { + i = htbl->huffval[p]; + if (i < 0 || i > maxsymbol || dtbl->ehufsi[i]) + ERREXIT(cinfo, JERR_BAD_HUFF_TABLE); + dtbl->ehufco[i] = huffcode[p]; + dtbl->ehufsi[i] = huffsize[p]; + } +} + + +/* Outputting bytes to the file. + * NB: these must be called only when actually outputting, + * that is, entropy->gather_statistics == FALSE. + */ + +/* Emit a byte, taking 'action' if must suspend. */ +#define emit_byte_s(state,val,action) \ + { *(state)->next_output_byte++ = (JOCTET) (val); \ + if (--(state)->free_in_buffer == 0) \ + if (! dump_buffer_s(state)) \ + { action; } } + +/* Emit a byte */ +#define emit_byte_e(entropy,val) \ + { *(entropy)->next_output_byte++ = (JOCTET) (val); \ + if (--(entropy)->free_in_buffer == 0) \ + dump_buffer_e(entropy); } + + +LOCAL(boolean) +dump_buffer_s (working_state * state) +/* Empty the output buffer; return TRUE if successful, FALSE if must suspend */ +{ + struct jpeg_destination_mgr * dest = state->cinfo->dest; + + if (! (*dest->empty_output_buffer) (state->cinfo)) + return FALSE; + /* After a successful buffer dump, must reset buffer pointers */ + state->next_output_byte = dest->next_output_byte; + state->free_in_buffer = dest->free_in_buffer; + return TRUE; +} + + +LOCAL(void) +dump_buffer_e (huff_entropy_ptr entropy) +/* Empty the output buffer; we do not support suspension in this case. */ +{ + struct jpeg_destination_mgr * dest = entropy->cinfo->dest; + + if (! (*dest->empty_output_buffer) (entropy->cinfo)) + ERREXIT(entropy->cinfo, JERR_CANT_SUSPEND); + /* After a successful buffer dump, must reset buffer pointers */ + entropy->next_output_byte = dest->next_output_byte; + entropy->free_in_buffer = dest->free_in_buffer; +} + + +/* Outputting bits to the file */ + +/* Only the right 24 bits of put_buffer are used; the valid bits are + * left-justified in this part. At most 16 bits can be passed to emit_bits + * in one call, and we never retain more than 7 bits in put_buffer + * between calls, so 24 bits are sufficient. + */ + +INLINE +LOCAL(boolean) +emit_bits_s (working_state * state, unsigned int code, int size) +/* Emit some bits; return TRUE if successful, FALSE if must suspend */ +{ + /* This routine is heavily used, so it's worth coding tightly. */ + register INT32 put_buffer = (INT32) code; + register int put_bits = state->cur.put_bits; + + /* if size is 0, caller used an invalid Huffman table entry */ + if (size == 0) + ERREXIT(state->cinfo, JERR_HUFF_MISSING_CODE); + + put_buffer &= (((INT32) 1)<cur.put_buffer; /* and merge with old buffer contents */ + + while (put_bits >= 8) { + int c = (int) ((put_buffer >> 16) & 0xFF); + + emit_byte_s(state, c, return FALSE); + if (c == 0xFF) { /* need to stuff a zero byte? */ + emit_byte_s(state, 0, return FALSE); + } + put_buffer <<= 8; + put_bits -= 8; + } + + state->cur.put_buffer = put_buffer; /* update state variables */ + state->cur.put_bits = put_bits; + + return TRUE; +} + + +INLINE +LOCAL(void) +emit_bits_e (huff_entropy_ptr entropy, unsigned int code, int size) +/* Emit some bits, unless we are in gather mode */ +{ + /* This routine is heavily used, so it's worth coding tightly. */ + register INT32 put_buffer = (INT32) code; + register int put_bits = entropy->saved.put_bits; + + /* if size is 0, caller used an invalid Huffman table entry */ + if (size == 0) + ERREXIT(entropy->cinfo, JERR_HUFF_MISSING_CODE); + + if (entropy->gather_statistics) + return; /* do nothing if we're only getting stats */ + + put_buffer &= (((INT32) 1)<saved.put_buffer; + + while (put_bits >= 8) { + int c = (int) ((put_buffer >> 16) & 0xFF); + + emit_byte_e(entropy, c); + if (c == 0xFF) { /* need to stuff a zero byte? */ + emit_byte_e(entropy, 0); + } + put_buffer <<= 8; + put_bits -= 8; + } + + entropy->saved.put_buffer = put_buffer; /* update variables */ + entropy->saved.put_bits = put_bits; +} + + +LOCAL(boolean) +flush_bits_s (working_state * state) +{ + if (! emit_bits_s(state, 0x7F, 7)) /* fill any partial byte with ones */ + return FALSE; + state->cur.put_buffer = 0; /* and reset bit-buffer to empty */ + state->cur.put_bits = 0; + return TRUE; +} + + +LOCAL(void) +flush_bits_e (huff_entropy_ptr entropy) +{ + emit_bits_e(entropy, 0x7F, 7); /* fill any partial byte with ones */ + entropy->saved.put_buffer = 0; /* and reset bit-buffer to empty */ + entropy->saved.put_bits = 0; +} + + +/* + * Emit (or just count) a Huffman symbol. + */ + +INLINE +LOCAL(void) +emit_dc_symbol (huff_entropy_ptr entropy, int tbl_no, int symbol) +{ + if (entropy->gather_statistics) + entropy->dc_count_ptrs[tbl_no][symbol]++; + else { + c_derived_tbl * tbl = entropy->dc_derived_tbls[tbl_no]; + emit_bits_e(entropy, tbl->ehufco[symbol], tbl->ehufsi[symbol]); + } +} + + +INLINE +LOCAL(void) +emit_ac_symbol (huff_entropy_ptr entropy, int tbl_no, int symbol) +{ + if (entropy->gather_statistics) + entropy->ac_count_ptrs[tbl_no][symbol]++; + else { + c_derived_tbl * tbl = entropy->ac_derived_tbls[tbl_no]; + emit_bits_e(entropy, tbl->ehufco[symbol], tbl->ehufsi[symbol]); + } +} + + +/* + * Emit bits from a correction bit buffer. + */ + +LOCAL(void) +emit_buffered_bits (huff_entropy_ptr entropy, char * bufstart, + unsigned int nbits) +{ + if (entropy->gather_statistics) + return; /* no real work */ + + while (nbits > 0) { + emit_bits_e(entropy, (unsigned int) (*bufstart), 1); + bufstart++; + nbits--; + } +} + + +/* + * Emit any pending EOBRUN symbol. + */ + +LOCAL(void) +emit_eobrun (huff_entropy_ptr entropy) +{ + register int temp, nbits; + + if (entropy->EOBRUN > 0) { /* if there is any pending EOBRUN */ + temp = entropy->EOBRUN; + nbits = 0; + while ((temp >>= 1)) + nbits++; + /* safety check: shouldn't happen given limited correction-bit buffer */ + if (nbits > 14) + ERREXIT(entropy->cinfo, JERR_HUFF_MISSING_CODE); + + emit_ac_symbol(entropy, entropy->ac_tbl_no, nbits << 4); + if (nbits) + emit_bits_e(entropy, entropy->EOBRUN, nbits); + + entropy->EOBRUN = 0; + + /* Emit any buffered correction bits */ + emit_buffered_bits(entropy, entropy->bit_buffer, entropy->BE); + entropy->BE = 0; + } +} + + +/* + * Emit a restart marker & resynchronize predictions. + */ + +LOCAL(boolean) +emit_restart_s (working_state * state, int restart_num) +{ + int ci; + + if (! flush_bits_s(state)) + return FALSE; + + emit_byte_s(state, 0xFF, return FALSE); + emit_byte_s(state, JPEG_RST0 + restart_num, return FALSE); + + /* Re-initialize DC predictions to 0 */ + for (ci = 0; ci < state->cinfo->comps_in_scan; ci++) + state->cur.last_dc_val[ci] = 0; + + /* The restart counter is not updated until we successfully write the MCU. */ + + return TRUE; +} + + +LOCAL(void) +emit_restart_e (huff_entropy_ptr entropy, int restart_num) +{ + int ci; + + emit_eobrun(entropy); + + if (! entropy->gather_statistics) { + flush_bits_e(entropy); + emit_byte_e(entropy, 0xFF); + emit_byte_e(entropy, JPEG_RST0 + restart_num); + } + + if (entropy->cinfo->Ss == 0) { + /* Re-initialize DC predictions to 0 */ + for (ci = 0; ci < entropy->cinfo->comps_in_scan; ci++) + entropy->saved.last_dc_val[ci] = 0; + } else { + /* Re-initialize all AC-related fields to 0 */ + entropy->EOBRUN = 0; + entropy->BE = 0; + } +} + + +/* + * MCU encoding for DC initial scan (either spectral selection, + * or first pass of successive approximation). + */ + +METHODDEF(boolean) +encode_mcu_DC_first (j_compress_ptr cinfo, JBLOCKROW *MCU_data) +{ + huff_entropy_ptr entropy = (huff_entropy_ptr) cinfo->entropy; + register int temp, temp2; + register int nbits; + int blkn, ci; + int Al = cinfo->Al; + JBLOCKROW block; + jpeg_component_info * compptr; + ISHIFT_TEMPS + + entropy->next_output_byte = cinfo->dest->next_output_byte; + entropy->free_in_buffer = cinfo->dest->free_in_buffer; + + /* Emit restart marker if needed */ + if (cinfo->restart_interval) + if (entropy->restarts_to_go == 0) + emit_restart_e(entropy, entropy->next_restart_num); + + /* Encode the MCU data blocks */ + for (blkn = 0; blkn < cinfo->blocks_in_MCU; blkn++) { + block = MCU_data[blkn]; + ci = cinfo->MCU_membership[blkn]; + compptr = cinfo->cur_comp_info[ci]; + + /* Compute the DC value after the required point transform by Al. + * This is simply an arithmetic right shift. + */ + temp2 = IRIGHT_SHIFT((int) ((*block)[0]), Al); + + /* DC differences are figured on the point-transformed values. */ + temp = temp2 - entropy->saved.last_dc_val[ci]; + entropy->saved.last_dc_val[ci] = temp2; + + /* Encode the DC coefficient difference per section G.1.2.1 */ + temp2 = temp; + if (temp < 0) { + temp = -temp; /* temp is abs value of input */ + /* For a negative input, want temp2 = bitwise complement of abs(input) */ + /* This code assumes we are on a two's complement machine */ + temp2--; + } + + /* Find the number of bits needed for the magnitude of the coefficient */ + nbits = 0; + while (temp) { + nbits++; + temp >>= 1; + } + /* Check for out-of-range coefficient values. + * Since we're encoding a difference, the range limit is twice as much. + */ + if (nbits > MAX_COEF_BITS+1) + ERREXIT(cinfo, JERR_BAD_DCT_COEF); + + /* Count/emit the Huffman-coded symbol for the number of bits */ + emit_dc_symbol(entropy, compptr->dc_tbl_no, nbits); + + /* Emit that number of bits of the value, if positive, */ + /* or the complement of its magnitude, if negative. */ + if (nbits) /* emit_bits rejects calls with size 0 */ + emit_bits_e(entropy, (unsigned int) temp2, nbits); + } + + cinfo->dest->next_output_byte = entropy->next_output_byte; + cinfo->dest->free_in_buffer = entropy->free_in_buffer; + + /* Update restart-interval state too */ + if (cinfo->restart_interval) { + if (entropy->restarts_to_go == 0) { + entropy->restarts_to_go = cinfo->restart_interval; + entropy->next_restart_num++; + entropy->next_restart_num &= 7; + } + entropy->restarts_to_go--; + } + + return TRUE; +} + + +/* + * MCU encoding for AC initial scan (either spectral selection, + * or first pass of successive approximation). + */ + +METHODDEF(boolean) +encode_mcu_AC_first (j_compress_ptr cinfo, JBLOCKROW *MCU_data) +{ + huff_entropy_ptr entropy = (huff_entropy_ptr) cinfo->entropy; + register int temp, temp2; + register int nbits; + register int r, k; + int Se, Al; + const int * natural_order; + JBLOCKROW block; + + entropy->next_output_byte = cinfo->dest->next_output_byte; + entropy->free_in_buffer = cinfo->dest->free_in_buffer; + + /* Emit restart marker if needed */ + if (cinfo->restart_interval) + if (entropy->restarts_to_go == 0) + emit_restart_e(entropy, entropy->next_restart_num); + + Se = cinfo->Se; + Al = cinfo->Al; + natural_order = cinfo->natural_order; + + /* Encode the MCU data block */ + block = MCU_data[0]; + + /* Encode the AC coefficients per section G.1.2.2, fig. G.3 */ + + r = 0; /* r = run length of zeros */ + + for (k = cinfo->Ss; k <= Se; k++) { + if ((temp = (*block)[natural_order[k]]) == 0) { + r++; + continue; + } + /* We must apply the point transform by Al. For AC coefficients this + * is an integer division with rounding towards 0. To do this portably + * in C, we shift after obtaining the absolute value; so the code is + * interwoven with finding the abs value (temp) and output bits (temp2). + */ + if (temp < 0) { + temp = -temp; /* temp is abs value of input */ + temp >>= Al; /* apply the point transform */ + /* For a negative coef, want temp2 = bitwise complement of abs(coef) */ + temp2 = ~temp; + } else { + temp >>= Al; /* apply the point transform */ + temp2 = temp; + } + /* Watch out for case that nonzero coef is zero after point transform */ + if (temp == 0) { + r++; + continue; + } + + /* Emit any pending EOBRUN */ + if (entropy->EOBRUN > 0) + emit_eobrun(entropy); + /* if run length > 15, must emit special run-length-16 codes (0xF0) */ + while (r > 15) { + emit_ac_symbol(entropy, entropy->ac_tbl_no, 0xF0); + r -= 16; + } + + /* Find the number of bits needed for the magnitude of the coefficient */ + nbits = 1; /* there must be at least one 1 bit */ + while ((temp >>= 1)) + nbits++; + /* Check for out-of-range coefficient values */ + if (nbits > MAX_COEF_BITS) + ERREXIT(cinfo, JERR_BAD_DCT_COEF); + + /* Count/emit Huffman symbol for run length / number of bits */ + emit_ac_symbol(entropy, entropy->ac_tbl_no, (r << 4) + nbits); + + /* Emit that number of bits of the value, if positive, */ + /* or the complement of its magnitude, if negative. */ + emit_bits_e(entropy, (unsigned int) temp2, nbits); + + r = 0; /* reset zero run length */ + } + + if (r > 0) { /* If there are trailing zeroes, */ + entropy->EOBRUN++; /* count an EOB */ + if (entropy->EOBRUN == 0x7FFF) + emit_eobrun(entropy); /* force it out to avoid overflow */ + } + + cinfo->dest->next_output_byte = entropy->next_output_byte; + cinfo->dest->free_in_buffer = entropy->free_in_buffer; + + /* Update restart-interval state too */ + if (cinfo->restart_interval) { + if (entropy->restarts_to_go == 0) { + entropy->restarts_to_go = cinfo->restart_interval; + entropy->next_restart_num++; + entropy->next_restart_num &= 7; + } + entropy->restarts_to_go--; + } + + return TRUE; +} + + +/* + * MCU encoding for DC successive approximation refinement scan. + * Note: we assume such scans can be multi-component, although the spec + * is not very clear on the point. + */ + +METHODDEF(boolean) +encode_mcu_DC_refine (j_compress_ptr cinfo, JBLOCKROW *MCU_data) +{ + huff_entropy_ptr entropy = (huff_entropy_ptr) cinfo->entropy; + register int temp; + int blkn; + int Al = cinfo->Al; + JBLOCKROW block; + + entropy->next_output_byte = cinfo->dest->next_output_byte; + entropy->free_in_buffer = cinfo->dest->free_in_buffer; + + /* Emit restart marker if needed */ + if (cinfo->restart_interval) + if (entropy->restarts_to_go == 0) + emit_restart_e(entropy, entropy->next_restart_num); + + /* Encode the MCU data blocks */ + for (blkn = 0; blkn < cinfo->blocks_in_MCU; blkn++) { + block = MCU_data[blkn]; + + /* We simply emit the Al'th bit of the DC coefficient value. */ + temp = (*block)[0]; + emit_bits_e(entropy, (unsigned int) (temp >> Al), 1); + } + + cinfo->dest->next_output_byte = entropy->next_output_byte; + cinfo->dest->free_in_buffer = entropy->free_in_buffer; + + /* Update restart-interval state too */ + if (cinfo->restart_interval) { + if (entropy->restarts_to_go == 0) { + entropy->restarts_to_go = cinfo->restart_interval; + entropy->next_restart_num++; + entropy->next_restart_num &= 7; + } + entropy->restarts_to_go--; + } + + return TRUE; +} + + +/* + * MCU encoding for AC successive approximation refinement scan. + */ + +METHODDEF(boolean) +encode_mcu_AC_refine (j_compress_ptr cinfo, JBLOCKROW *MCU_data) +{ + huff_entropy_ptr entropy = (huff_entropy_ptr) cinfo->entropy; + register int temp; + register int r, k; + int EOB; + char *BR_buffer; + unsigned int BR; + int Se, Al; + const int * natural_order; + JBLOCKROW block; + int absvalues[DCTSIZE2]; + + entropy->next_output_byte = cinfo->dest->next_output_byte; + entropy->free_in_buffer = cinfo->dest->free_in_buffer; + + /* Emit restart marker if needed */ + if (cinfo->restart_interval) + if (entropy->restarts_to_go == 0) + emit_restart_e(entropy, entropy->next_restart_num); + + Se = cinfo->Se; + Al = cinfo->Al; + natural_order = cinfo->natural_order; + + /* Encode the MCU data block */ + block = MCU_data[0]; + + /* It is convenient to make a pre-pass to determine the transformed + * coefficients' absolute values and the EOB position. + */ + EOB = 0; + for (k = cinfo->Ss; k <= Se; k++) { + temp = (*block)[natural_order[k]]; + /* We must apply the point transform by Al. For AC coefficients this + * is an integer division with rounding towards 0. To do this portably + * in C, we shift after obtaining the absolute value. + */ + if (temp < 0) + temp = -temp; /* temp is abs value of input */ + temp >>= Al; /* apply the point transform */ + absvalues[k] = temp; /* save abs value for main pass */ + if (temp == 1) + EOB = k; /* EOB = index of last newly-nonzero coef */ + } + + /* Encode the AC coefficients per section G.1.2.3, fig. G.7 */ + + r = 0; /* r = run length of zeros */ + BR = 0; /* BR = count of buffered bits added now */ + BR_buffer = entropy->bit_buffer + entropy->BE; /* Append bits to buffer */ + + for (k = cinfo->Ss; k <= Se; k++) { + if ((temp = absvalues[k]) == 0) { + r++; + continue; + } + + /* Emit any required ZRLs, but not if they can be folded into EOB */ + while (r > 15 && k <= EOB) { + /* emit any pending EOBRUN and the BE correction bits */ + emit_eobrun(entropy); + /* Emit ZRL */ + emit_ac_symbol(entropy, entropy->ac_tbl_no, 0xF0); + r -= 16; + /* Emit buffered correction bits that must be associated with ZRL */ + emit_buffered_bits(entropy, BR_buffer, BR); + BR_buffer = entropy->bit_buffer; /* BE bits are gone now */ + BR = 0; + } + + /* If the coef was previously nonzero, it only needs a correction bit. + * NOTE: a straight translation of the spec's figure G.7 would suggest + * that we also need to test r > 15. But if r > 15, we can only get here + * if k > EOB, which implies that this coefficient is not 1. + */ + if (temp > 1) { + /* The correction bit is the next bit of the absolute value. */ + BR_buffer[BR++] = (char) (temp & 1); + continue; + } + + /* Emit any pending EOBRUN and the BE correction bits */ + emit_eobrun(entropy); + + /* Count/emit Huffman symbol for run length / number of bits */ + emit_ac_symbol(entropy, entropy->ac_tbl_no, (r << 4) + 1); + + /* Emit output bit for newly-nonzero coef */ + temp = ((*block)[natural_order[k]] < 0) ? 0 : 1; + emit_bits_e(entropy, (unsigned int) temp, 1); + + /* Emit buffered correction bits that must be associated with this code */ + emit_buffered_bits(entropy, BR_buffer, BR); + BR_buffer = entropy->bit_buffer; /* BE bits are gone now */ + BR = 0; + r = 0; /* reset zero run length */ + } + + if (r > 0 || BR > 0) { /* If there are trailing zeroes, */ + entropy->EOBRUN++; /* count an EOB */ + entropy->BE += BR; /* concat my correction bits to older ones */ + /* We force out the EOB if we risk either: + * 1. overflow of the EOB counter; + * 2. overflow of the correction bit buffer during the next MCU. + */ + if (entropy->EOBRUN == 0x7FFF || entropy->BE > (MAX_CORR_BITS-DCTSIZE2+1)) + emit_eobrun(entropy); + } + + cinfo->dest->next_output_byte = entropy->next_output_byte; + cinfo->dest->free_in_buffer = entropy->free_in_buffer; + + /* Update restart-interval state too */ + if (cinfo->restart_interval) { + if (entropy->restarts_to_go == 0) { + entropy->restarts_to_go = cinfo->restart_interval; + entropy->next_restart_num++; + entropy->next_restart_num &= 7; + } + entropy->restarts_to_go--; + } + + return TRUE; +} + + +/* Encode a single block's worth of coefficients */ + +LOCAL(boolean) +encode_one_block (working_state * state, JCOEFPTR block, int last_dc_val, + c_derived_tbl *dctbl, c_derived_tbl *actbl) +{ + register int temp, temp2; + register int nbits; + register int k, r, i; + int Se = state->cinfo->lim_Se; + const int * natural_order = state->cinfo->natural_order; + + /* Encode the DC coefficient difference per section F.1.2.1 */ + + temp = temp2 = block[0] - last_dc_val; + + if (temp < 0) { + temp = -temp; /* temp is abs value of input */ + /* For a negative input, want temp2 = bitwise complement of abs(input) */ + /* This code assumes we are on a two's complement machine */ + temp2--; + } + + /* Find the number of bits needed for the magnitude of the coefficient */ + nbits = 0; + while (temp) { + nbits++; + temp >>= 1; + } + /* Check for out-of-range coefficient values. + * Since we're encoding a difference, the range limit is twice as much. + */ + if (nbits > MAX_COEF_BITS+1) + ERREXIT(state->cinfo, JERR_BAD_DCT_COEF); + + /* Emit the Huffman-coded symbol for the number of bits */ + if (! emit_bits_s(state, dctbl->ehufco[nbits], dctbl->ehufsi[nbits])) + return FALSE; + + /* Emit that number of bits of the value, if positive, */ + /* or the complement of its magnitude, if negative. */ + if (nbits) /* emit_bits rejects calls with size 0 */ + if (! emit_bits_s(state, (unsigned int) temp2, nbits)) + return FALSE; + + /* Encode the AC coefficients per section F.1.2.2 */ + + r = 0; /* r = run length of zeros */ + + for (k = 1; k <= Se; k++) { + if ((temp = block[natural_order[k]]) == 0) { + r++; + } else { + /* if run length > 15, must emit special run-length-16 codes (0xF0) */ + while (r > 15) { + if (! emit_bits_s(state, actbl->ehufco[0xF0], actbl->ehufsi[0xF0])) + return FALSE; + r -= 16; + } + + temp2 = temp; + if (temp < 0) { + temp = -temp; /* temp is abs value of input */ + /* This code assumes we are on a two's complement machine */ + temp2--; + } + + /* Find the number of bits needed for the magnitude of the coefficient */ + nbits = 1; /* there must be at least one 1 bit */ + while ((temp >>= 1)) + nbits++; + /* Check for out-of-range coefficient values */ + if (nbits > MAX_COEF_BITS) + ERREXIT(state->cinfo, JERR_BAD_DCT_COEF); + + /* Emit Huffman symbol for run length / number of bits */ + i = (r << 4) + nbits; + if (! emit_bits_s(state, actbl->ehufco[i], actbl->ehufsi[i])) + return FALSE; + + /* Emit that number of bits of the value, if positive, */ + /* or the complement of its magnitude, if negative. */ + if (! emit_bits_s(state, (unsigned int) temp2, nbits)) + return FALSE; + + r = 0; + } + } + + /* If the last coef(s) were zero, emit an end-of-block code */ + if (r > 0) + if (! emit_bits_s(state, actbl->ehufco[0], actbl->ehufsi[0])) + return FALSE; + + return TRUE; +} + + +/* + * Encode and output one MCU's worth of Huffman-compressed coefficients. + */ + +METHODDEF(boolean) +encode_mcu_huff (j_compress_ptr cinfo, JBLOCKROW *MCU_data) +{ + huff_entropy_ptr entropy = (huff_entropy_ptr) cinfo->entropy; + working_state state; + int blkn, ci; + jpeg_component_info * compptr; + + /* Load up working state */ + state.next_output_byte = cinfo->dest->next_output_byte; + state.free_in_buffer = cinfo->dest->free_in_buffer; + ASSIGN_STATE(state.cur, entropy->saved); + state.cinfo = cinfo; + + /* Emit restart marker if needed */ + if (cinfo->restart_interval) { + if (entropy->restarts_to_go == 0) + if (! emit_restart_s(&state, entropy->next_restart_num)) + return FALSE; + } + + /* Encode the MCU data blocks */ + for (blkn = 0; blkn < cinfo->blocks_in_MCU; blkn++) { + ci = cinfo->MCU_membership[blkn]; + compptr = cinfo->cur_comp_info[ci]; + if (! encode_one_block(&state, + MCU_data[blkn][0], state.cur.last_dc_val[ci], + entropy->dc_derived_tbls[compptr->dc_tbl_no], + entropy->ac_derived_tbls[compptr->ac_tbl_no])) + return FALSE; + /* Update last_dc_val */ + state.cur.last_dc_val[ci] = MCU_data[blkn][0][0]; + } + + /* Completed MCU, so update state */ + cinfo->dest->next_output_byte = state.next_output_byte; + cinfo->dest->free_in_buffer = state.free_in_buffer; + ASSIGN_STATE(entropy->saved, state.cur); + + /* Update restart-interval state too */ + if (cinfo->restart_interval) { + if (entropy->restarts_to_go == 0) { + entropy->restarts_to_go = cinfo->restart_interval; + entropy->next_restart_num++; + entropy->next_restart_num &= 7; + } + entropy->restarts_to_go--; + } + + return TRUE; +} + + +/* + * Finish up at the end of a Huffman-compressed scan. + */ + +METHODDEF(void) +finish_pass_huff (j_compress_ptr cinfo) +{ + huff_entropy_ptr entropy = (huff_entropy_ptr) cinfo->entropy; + working_state state; + + if (cinfo->progressive_mode) { + entropy->next_output_byte = cinfo->dest->next_output_byte; + entropy->free_in_buffer = cinfo->dest->free_in_buffer; + + /* Flush out any buffered data */ + emit_eobrun(entropy); + flush_bits_e(entropy); + + cinfo->dest->next_output_byte = entropy->next_output_byte; + cinfo->dest->free_in_buffer = entropy->free_in_buffer; + } else { + /* Load up working state ... flush_bits needs it */ + state.next_output_byte = cinfo->dest->next_output_byte; + state.free_in_buffer = cinfo->dest->free_in_buffer; + ASSIGN_STATE(state.cur, entropy->saved); + state.cinfo = cinfo; + + /* Flush out the last data */ + if (! flush_bits_s(&state)) + ERREXIT(cinfo, JERR_CANT_SUSPEND); + + /* Update state */ + cinfo->dest->next_output_byte = state.next_output_byte; + cinfo->dest->free_in_buffer = state.free_in_buffer; + ASSIGN_STATE(entropy->saved, state.cur); + } +} + + +/* + * Huffman coding optimization. + * + * We first scan the supplied data and count the number of uses of each symbol + * that is to be Huffman-coded. (This process MUST agree with the code above.) + * Then we build a Huffman coding tree for the observed counts. + * Symbols which are not needed at all for the particular image are not + * assigned any code, which saves space in the DHT marker as well as in + * the compressed data. + */ + + +/* Process a single block's worth of coefficients */ + +LOCAL(void) +htest_one_block (j_compress_ptr cinfo, JCOEFPTR block, int last_dc_val, + long dc_counts[], long ac_counts[]) +{ + register int temp; + register int nbits; + register int k, r; + int Se = cinfo->lim_Se; + const int * natural_order = cinfo->natural_order; + + /* Encode the DC coefficient difference per section F.1.2.1 */ + + temp = block[0] - last_dc_val; + if (temp < 0) + temp = -temp; + + /* Find the number of bits needed for the magnitude of the coefficient */ + nbits = 0; + while (temp) { + nbits++; + temp >>= 1; + } + /* Check for out-of-range coefficient values. + * Since we're encoding a difference, the range limit is twice as much. + */ + if (nbits > MAX_COEF_BITS+1) + ERREXIT(cinfo, JERR_BAD_DCT_COEF); + + /* Count the Huffman symbol for the number of bits */ + dc_counts[nbits]++; + + /* Encode the AC coefficients per section F.1.2.2 */ + + r = 0; /* r = run length of zeros */ + + for (k = 1; k <= Se; k++) { + if ((temp = block[natural_order[k]]) == 0) { + r++; + } else { + /* if run length > 15, must emit special run-length-16 codes (0xF0) */ + while (r > 15) { + ac_counts[0xF0]++; + r -= 16; + } + + /* Find the number of bits needed for the magnitude of the coefficient */ + if (temp < 0) + temp = -temp; + + /* Find the number of bits needed for the magnitude of the coefficient */ + nbits = 1; /* there must be at least one 1 bit */ + while ((temp >>= 1)) + nbits++; + /* Check for out-of-range coefficient values */ + if (nbits > MAX_COEF_BITS) + ERREXIT(cinfo, JERR_BAD_DCT_COEF); + + /* Count Huffman symbol for run length / number of bits */ + ac_counts[(r << 4) + nbits]++; + + r = 0; + } + } + + /* If the last coef(s) were zero, emit an end-of-block code */ + if (r > 0) + ac_counts[0]++; +} + + +/* + * Trial-encode one MCU's worth of Huffman-compressed coefficients. + * No data is actually output, so no suspension return is possible. + */ + +METHODDEF(boolean) +encode_mcu_gather (j_compress_ptr cinfo, JBLOCKROW *MCU_data) +{ + huff_entropy_ptr entropy = (huff_entropy_ptr) cinfo->entropy; + int blkn, ci; + jpeg_component_info * compptr; + + /* Take care of restart intervals if needed */ + if (cinfo->restart_interval) { + if (entropy->restarts_to_go == 0) { + /* Re-initialize DC predictions to 0 */ + for (ci = 0; ci < cinfo->comps_in_scan; ci++) + entropy->saved.last_dc_val[ci] = 0; + /* Update restart state */ + entropy->restarts_to_go = cinfo->restart_interval; + } + entropy->restarts_to_go--; + } + + for (blkn = 0; blkn < cinfo->blocks_in_MCU; blkn++) { + ci = cinfo->MCU_membership[blkn]; + compptr = cinfo->cur_comp_info[ci]; + htest_one_block(cinfo, MCU_data[blkn][0], entropy->saved.last_dc_val[ci], + entropy->dc_count_ptrs[compptr->dc_tbl_no], + entropy->ac_count_ptrs[compptr->ac_tbl_no]); + entropy->saved.last_dc_val[ci] = MCU_data[blkn][0][0]; + } + + return TRUE; +} + + +/* + * Generate the best Huffman code table for the given counts, fill htbl. + * + * The JPEG standard requires that no symbol be assigned a codeword of all + * one bits (so that padding bits added at the end of a compressed segment + * can't look like a valid code). Because of the canonical ordering of + * codewords, this just means that there must be an unused slot in the + * longest codeword length category. Section K.2 of the JPEG spec suggests + * reserving such a slot by pretending that symbol 256 is a valid symbol + * with count 1. In theory that's not optimal; giving it count zero but + * including it in the symbol set anyway should give a better Huffman code. + * But the theoretically better code actually seems to come out worse in + * practice, because it produces more all-ones bytes (which incur stuffed + * zero bytes in the final file). In any case the difference is tiny. + * + * The JPEG standard requires Huffman codes to be no more than 16 bits long. + * If some symbols have a very small but nonzero probability, the Huffman tree + * must be adjusted to meet the code length restriction. We currently use + * the adjustment method suggested in JPEG section K.2. This method is *not* + * optimal; it may not choose the best possible limited-length code. But + * typically only very-low-frequency symbols will be given less-than-optimal + * lengths, so the code is almost optimal. Experimental comparisons against + * an optimal limited-length-code algorithm indicate that the difference is + * microscopic --- usually less than a hundredth of a percent of total size. + * So the extra complexity of an optimal algorithm doesn't seem worthwhile. + */ + +LOCAL(void) +jpeg_gen_optimal_table (j_compress_ptr cinfo, JHUFF_TBL * htbl, long freq[]) +{ +#define MAX_CLEN 32 /* assumed maximum initial code length */ + UINT8 bits[MAX_CLEN+1]; /* bits[k] = # of symbols with code length k */ + int codesize[257]; /* codesize[k] = code length of symbol k */ + int others[257]; /* next symbol in current branch of tree */ + int c1, c2; + int p, i, j; + long v; + + /* This algorithm is explained in section K.2 of the JPEG standard */ + + MEMZERO(bits, SIZEOF(bits)); + MEMZERO(codesize, SIZEOF(codesize)); + for (i = 0; i < 257; i++) + others[i] = -1; /* init links to empty */ + + freq[256] = 1; /* make sure 256 has a nonzero count */ + /* Including the pseudo-symbol 256 in the Huffman procedure guarantees + * that no real symbol is given code-value of all ones, because 256 + * will be placed last in the largest codeword category. + */ + + /* Huffman's basic algorithm to assign optimal code lengths to symbols */ + + for (;;) { + /* Find the smallest nonzero frequency, set c1 = its symbol */ + /* In case of ties, take the larger symbol number */ + c1 = -1; + v = 1000000000L; + for (i = 0; i <= 256; i++) { + if (freq[i] && freq[i] <= v) { + v = freq[i]; + c1 = i; + } + } + + /* Find the next smallest nonzero frequency, set c2 = its symbol */ + /* In case of ties, take the larger symbol number */ + c2 = -1; + v = 1000000000L; + for (i = 0; i <= 256; i++) { + if (freq[i] && freq[i] <= v && i != c1) { + v = freq[i]; + c2 = i; + } + } + + /* Done if we've merged everything into one frequency */ + if (c2 < 0) + break; + + /* Else merge the two counts/trees */ + freq[c1] += freq[c2]; + freq[c2] = 0; + + /* Increment the codesize of everything in c1's tree branch */ + codesize[c1]++; + while (others[c1] >= 0) { + c1 = others[c1]; + codesize[c1]++; + } + + others[c1] = c2; /* chain c2 onto c1's tree branch */ + + /* Increment the codesize of everything in c2's tree branch */ + codesize[c2]++; + while (others[c2] >= 0) { + c2 = others[c2]; + codesize[c2]++; + } + } + + /* Now count the number of symbols of each code length */ + for (i = 0; i <= 256; i++) { + if (codesize[i]) { + /* The JPEG standard seems to think that this can't happen, */ + /* but I'm paranoid... */ + if (codesize[i] > MAX_CLEN) + ERREXIT(cinfo, JERR_HUFF_CLEN_OVERFLOW); + + bits[codesize[i]]++; + } + } + + /* JPEG doesn't allow symbols with code lengths over 16 bits, so if the pure + * Huffman procedure assigned any such lengths, we must adjust the coding. + * Here is what the JPEG spec says about how this next bit works: + * Since symbols are paired for the longest Huffman code, the symbols are + * removed from this length category two at a time. The prefix for the pair + * (which is one bit shorter) is allocated to one of the pair; then, + * skipping the BITS entry for that prefix length, a code word from the next + * shortest nonzero BITS entry is converted into a prefix for two code words + * one bit longer. + */ + + for (i = MAX_CLEN; i > 16; i--) { + while (bits[i] > 0) { + j = i - 2; /* find length of new prefix to be used */ + while (bits[j] == 0) + j--; + + bits[i] -= 2; /* remove two symbols */ + bits[i-1]++; /* one goes in this length */ + bits[j+1] += 2; /* two new symbols in this length */ + bits[j]--; /* symbol of this length is now a prefix */ + } + } + + /* Remove the count for the pseudo-symbol 256 from the largest codelength */ + while (bits[i] == 0) /* find largest codelength still in use */ + i--; + bits[i]--; + + /* Return final symbol counts (only for lengths 0..16) */ + MEMCOPY(htbl->bits, bits, SIZEOF(htbl->bits)); + + /* Return a list of the symbols sorted by code length */ + /* It's not real clear to me why we don't need to consider the codelength + * changes made above, but the JPEG spec seems to think this works. + */ + p = 0; + for (i = 1; i <= MAX_CLEN; i++) { + for (j = 0; j <= 255; j++) { + if (codesize[j] == i) { + htbl->huffval[p] = (UINT8) j; + p++; + } + } + } + + /* Set sent_table FALSE so updated table will be written to JPEG file. */ + htbl->sent_table = FALSE; +} + + +/* + * Finish up a statistics-gathering pass and create the new Huffman tables. + */ + +METHODDEF(void) +finish_pass_gather (j_compress_ptr cinfo) +{ + huff_entropy_ptr entropy = (huff_entropy_ptr) cinfo->entropy; + int ci, tbl; + jpeg_component_info * compptr; + JHUFF_TBL **htblptr; + boolean did_dc[NUM_HUFF_TBLS]; + boolean did_ac[NUM_HUFF_TBLS]; + + /* It's important not to apply jpeg_gen_optimal_table more than once + * per table, because it clobbers the input frequency counts! + */ + if (cinfo->progressive_mode) + /* Flush out buffered data (all we care about is counting the EOB symbol) */ + emit_eobrun(entropy); + + MEMZERO(did_dc, SIZEOF(did_dc)); + MEMZERO(did_ac, SIZEOF(did_ac)); + + for (ci = 0; ci < cinfo->comps_in_scan; ci++) { + compptr = cinfo->cur_comp_info[ci]; + /* DC needs no table for refinement scan */ + if (cinfo->Ss == 0 && cinfo->Ah == 0) { + tbl = compptr->dc_tbl_no; + if (! did_dc[tbl]) { + htblptr = & cinfo->dc_huff_tbl_ptrs[tbl]; + if (*htblptr == NULL) + *htblptr = jpeg_alloc_huff_table((j_common_ptr) cinfo); + jpeg_gen_optimal_table(cinfo, *htblptr, entropy->dc_count_ptrs[tbl]); + did_dc[tbl] = TRUE; + } + } + /* AC needs no table when not present */ + if (cinfo->Se) { + tbl = compptr->ac_tbl_no; + if (! did_ac[tbl]) { + htblptr = & cinfo->ac_huff_tbl_ptrs[tbl]; + if (*htblptr == NULL) + *htblptr = jpeg_alloc_huff_table((j_common_ptr) cinfo); + jpeg_gen_optimal_table(cinfo, *htblptr, entropy->ac_count_ptrs[tbl]); + did_ac[tbl] = TRUE; + } + } + } +} + + +/* + * Initialize for a Huffman-compressed scan. + * If gather_statistics is TRUE, we do not output anything during the scan, + * just count the Huffman symbols used and generate Huffman code tables. + */ + +METHODDEF(void) +start_pass_huff (j_compress_ptr cinfo, boolean gather_statistics) +{ + huff_entropy_ptr entropy = (huff_entropy_ptr) cinfo->entropy; + int ci, tbl; + jpeg_component_info * compptr; + + if (gather_statistics) + entropy->pub.finish_pass = finish_pass_gather; + else + entropy->pub.finish_pass = finish_pass_huff; + + if (cinfo->progressive_mode) { + entropy->cinfo = cinfo; + entropy->gather_statistics = gather_statistics; + + /* We assume jcmaster.c already validated the scan parameters. */ + + /* Select execution routine */ + if (cinfo->Ah == 0) { + if (cinfo->Ss == 0) + entropy->pub.encode_mcu = encode_mcu_DC_first; + else + entropy->pub.encode_mcu = encode_mcu_AC_first; + } else { + if (cinfo->Ss == 0) + entropy->pub.encode_mcu = encode_mcu_DC_refine; + else { + entropy->pub.encode_mcu = encode_mcu_AC_refine; + /* AC refinement needs a correction bit buffer */ + if (entropy->bit_buffer == NULL) + entropy->bit_buffer = (char *) + (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, + MAX_CORR_BITS * SIZEOF(char)); + } + } + + /* Initialize AC stuff */ + entropy->ac_tbl_no = cinfo->cur_comp_info[0]->ac_tbl_no; + entropy->EOBRUN = 0; + entropy->BE = 0; + } else { + if (gather_statistics) + entropy->pub.encode_mcu = encode_mcu_gather; + else + entropy->pub.encode_mcu = encode_mcu_huff; + } + + for (ci = 0; ci < cinfo->comps_in_scan; ci++) { + compptr = cinfo->cur_comp_info[ci]; + /* DC needs no table for refinement scan */ + if (cinfo->Ss == 0 && cinfo->Ah == 0) { + tbl = compptr->dc_tbl_no; + if (gather_statistics) { + /* Check for invalid table index */ + /* (make_c_derived_tbl does this in the other path) */ + if (tbl < 0 || tbl >= NUM_HUFF_TBLS) + ERREXIT1(cinfo, JERR_NO_HUFF_TABLE, tbl); + /* Allocate and zero the statistics tables */ + /* Note that jpeg_gen_optimal_table expects 257 entries in each table! */ + if (entropy->dc_count_ptrs[tbl] == NULL) + entropy->dc_count_ptrs[tbl] = (long *) + (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, + 257 * SIZEOF(long)); + MEMZERO(entropy->dc_count_ptrs[tbl], 257 * SIZEOF(long)); + } else { + /* Compute derived values for Huffman tables */ + /* We may do this more than once for a table, but it's not expensive */ + jpeg_make_c_derived_tbl(cinfo, TRUE, tbl, + & entropy->dc_derived_tbls[tbl]); + } + /* Initialize DC predictions to 0 */ + entropy->saved.last_dc_val[ci] = 0; + } + /* AC needs no table when not present */ + if (cinfo->Se) { + tbl = compptr->ac_tbl_no; + if (gather_statistics) { + if (tbl < 0 || tbl >= NUM_HUFF_TBLS) + ERREXIT1(cinfo, JERR_NO_HUFF_TABLE, tbl); + if (entropy->ac_count_ptrs[tbl] == NULL) + entropy->ac_count_ptrs[tbl] = (long *) + (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, + 257 * SIZEOF(long)); + MEMZERO(entropy->ac_count_ptrs[tbl], 257 * SIZEOF(long)); + } else { + jpeg_make_c_derived_tbl(cinfo, FALSE, tbl, + & entropy->ac_derived_tbls[tbl]); + } + } + } + + /* Initialize bit buffer to empty */ + entropy->saved.put_buffer = 0; + entropy->saved.put_bits = 0; + + /* Initialize restart stuff */ + entropy->restarts_to_go = cinfo->restart_interval; + entropy->next_restart_num = 0; +} + + +/* + * Module initialization routine for Huffman entropy encoding. + */ + +GLOBAL(void) +jinit_huff_encoder (j_compress_ptr cinfo) +{ + huff_entropy_ptr entropy; + int i; + + entropy = (huff_entropy_ptr) + (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, + SIZEOF(huff_entropy_encoder)); + cinfo->entropy = (struct jpeg_entropy_encoder *) entropy; + entropy->pub.start_pass = start_pass_huff; + + /* Mark tables unallocated */ + for (i = 0; i < NUM_HUFF_TBLS; i++) { + entropy->dc_derived_tbls[i] = entropy->ac_derived_tbls[i] = NULL; + entropy->dc_count_ptrs[i] = entropy->ac_count_ptrs[i] = NULL; + } + + if (cinfo->progressive_mode) + entropy->bit_buffer = NULL; /* needed only in AC refinement scan */ +} diff --git a/jpeg/jcinit.c b/jpeg/jcinit.c new file mode 100644 index 0000000..0ba310f --- /dev/null +++ b/jpeg/jcinit.c @@ -0,0 +1,65 @@ +/* + * jcinit.c + * + * Copyright (C) 1991-1997, Thomas G. Lane. + * This file is part of the Independent JPEG Group's software. + * For conditions of distribution and use, see the accompanying README file. + * + * This file contains initialization logic for the JPEG compressor. + * This routine is in charge of selecting the modules to be executed and + * making an initialization call to each one. + * + * Logically, this code belongs in jcmaster.c. It's split out because + * linking this routine implies linking the entire compression library. + * For a transcoding-only application, we want to be able to use jcmaster.c + * without linking in the whole library. + */ + +#define JPEG_INTERNALS +#include "jinclude.h" +#include "jpeglib.h" + + +/* + * Master selection of compression modules. + * This is done once at the start of processing an image. We determine + * which modules will be used and give them appropriate initialization calls. + */ + +GLOBAL(void) +jinit_compress_master (j_compress_ptr cinfo) +{ + /* Initialize master control (includes parameter checking/processing) */ + jinit_c_master_control(cinfo, FALSE /* full compression */); + + /* Preprocessing */ + if (! cinfo->raw_data_in) { + jinit_color_converter(cinfo); + jinit_downsampler(cinfo); + jinit_c_prep_controller(cinfo, FALSE /* never need full buffer here */); + } + /* Forward DCT */ + jinit_forward_dct(cinfo); + /* Entropy encoding: either Huffman or arithmetic coding. */ + if (cinfo->arith_code) + jinit_arith_encoder(cinfo); + else { + jinit_huff_encoder(cinfo); + } + + /* Need a full-image coefficient buffer in any multi-pass mode. */ + jinit_c_coef_controller(cinfo, + (boolean) (cinfo->num_scans > 1 || cinfo->optimize_coding)); + jinit_c_main_controller(cinfo, FALSE /* never need full buffer here */); + + jinit_marker_writer(cinfo); + + /* We can now tell the memory manager to allocate virtual arrays. */ + (*cinfo->mem->realize_virt_arrays) ((j_common_ptr) cinfo); + + /* Write the datastream header (SOI) immediately. + * Frame and scan headers are postponed till later. + * This lets application insert special markers after the SOI. + */ + (*cinfo->marker->write_file_header) (cinfo); +} diff --git a/jpeg/jcmainct.c b/jpeg/jcmainct.c new file mode 100644 index 0000000..7de75d1 --- /dev/null +++ b/jpeg/jcmainct.c @@ -0,0 +1,293 @@ +/* + * jcmainct.c + * + * Copyright (C) 1994-1996, Thomas G. Lane. + * This file is part of the Independent JPEG Group's software. + * For conditions of distribution and use, see the accompanying README file. + * + * This file contains the main buffer controller for compression. + * The main buffer lies between the pre-processor and the JPEG + * compressor proper; it holds downsampled data in the JPEG colorspace. + */ + +#define JPEG_INTERNALS +#include "jinclude.h" +#include "jpeglib.h" + + +/* Note: currently, there is no operating mode in which a full-image buffer + * is needed at this step. If there were, that mode could not be used with + * "raw data" input, since this module is bypassed in that case. However, + * we've left the code here for possible use in special applications. + */ +#undef FULL_MAIN_BUFFER_SUPPORTED + + +/* Private buffer controller object */ + +typedef struct { + struct jpeg_c_main_controller pub; /* public fields */ + + JDIMENSION cur_iMCU_row; /* number of current iMCU row */ + JDIMENSION rowgroup_ctr; /* counts row groups received in iMCU row */ + boolean suspended; /* remember if we suspended output */ + J_BUF_MODE pass_mode; /* current operating mode */ + + /* If using just a strip buffer, this points to the entire set of buffers + * (we allocate one for each component). In the full-image case, this + * points to the currently accessible strips of the virtual arrays. + */ + JSAMPARRAY buffer[MAX_COMPONENTS]; + +#ifdef FULL_MAIN_BUFFER_SUPPORTED + /* If using full-image storage, this array holds pointers to virtual-array + * control blocks for each component. Unused if not full-image storage. + */ + jvirt_sarray_ptr whole_image[MAX_COMPONENTS]; +#endif +} my_main_controller; + +typedef my_main_controller * my_main_ptr; + + +/* Forward declarations */ +METHODDEF(void) process_data_simple_main + JPP((j_compress_ptr cinfo, JSAMPARRAY input_buf, + JDIMENSION *in_row_ctr, JDIMENSION in_rows_avail)); +#ifdef FULL_MAIN_BUFFER_SUPPORTED +METHODDEF(void) process_data_buffer_main + JPP((j_compress_ptr cinfo, JSAMPARRAY input_buf, + JDIMENSION *in_row_ctr, JDIMENSION in_rows_avail)); +#endif + + +/* + * Initialize for a processing pass. + */ + +METHODDEF(void) +start_pass_main (j_compress_ptr cinfo, J_BUF_MODE pass_mode) +{ + my_main_ptr main = (my_main_ptr) cinfo->main; + + /* Do nothing in raw-data mode. */ + if (cinfo->raw_data_in) + return; + + main->cur_iMCU_row = 0; /* initialize counters */ + main->rowgroup_ctr = 0; + main->suspended = FALSE; + main->pass_mode = pass_mode; /* save mode for use by process_data */ + + switch (pass_mode) { + case JBUF_PASS_THRU: +#ifdef FULL_MAIN_BUFFER_SUPPORTED + if (main->whole_image[0] != NULL) + ERREXIT(cinfo, JERR_BAD_BUFFER_MODE); +#endif + main->pub.process_data = process_data_simple_main; + break; +#ifdef FULL_MAIN_BUFFER_SUPPORTED + case JBUF_SAVE_SOURCE: + case JBUF_CRANK_DEST: + case JBUF_SAVE_AND_PASS: + if (main->whole_image[0] == NULL) + ERREXIT(cinfo, JERR_BAD_BUFFER_MODE); + main->pub.process_data = process_data_buffer_main; + break; +#endif + default: + ERREXIT(cinfo, JERR_BAD_BUFFER_MODE); + break; + } +} + + +/* + * Process some data. + * This routine handles the simple pass-through mode, + * where we have only a strip buffer. + */ + +METHODDEF(void) +process_data_simple_main (j_compress_ptr cinfo, + JSAMPARRAY input_buf, JDIMENSION *in_row_ctr, + JDIMENSION in_rows_avail) +{ + my_main_ptr main = (my_main_ptr) cinfo->main; + + while (main->cur_iMCU_row < cinfo->total_iMCU_rows) { + /* Read input data if we haven't filled the main buffer yet */ + if (main->rowgroup_ctr < (JDIMENSION) cinfo->min_DCT_v_scaled_size) + (*cinfo->prep->pre_process_data) (cinfo, + input_buf, in_row_ctr, in_rows_avail, + main->buffer, &main->rowgroup_ctr, + (JDIMENSION) cinfo->min_DCT_v_scaled_size); + + /* If we don't have a full iMCU row buffered, return to application for + * more data. Note that preprocessor will always pad to fill the iMCU row + * at the bottom of the image. + */ + if (main->rowgroup_ctr != (JDIMENSION) cinfo->min_DCT_v_scaled_size) + return; + + /* Send the completed row to the compressor */ + if (! (*cinfo->coef->compress_data) (cinfo, main->buffer)) { + /* If compressor did not consume the whole row, then we must need to + * suspend processing and return to the application. In this situation + * we pretend we didn't yet consume the last input row; otherwise, if + * it happened to be the last row of the image, the application would + * think we were done. + */ + if (! main->suspended) { + (*in_row_ctr)--; + main->suspended = TRUE; + } + return; + } + /* We did finish the row. Undo our little suspension hack if a previous + * call suspended; then mark the main buffer empty. + */ + if (main->suspended) { + (*in_row_ctr)++; + main->suspended = FALSE; + } + main->rowgroup_ctr = 0; + main->cur_iMCU_row++; + } +} + + +#ifdef FULL_MAIN_BUFFER_SUPPORTED + +/* + * Process some data. + * This routine handles all of the modes that use a full-size buffer. + */ + +METHODDEF(void) +process_data_buffer_main (j_compress_ptr cinfo, + JSAMPARRAY input_buf, JDIMENSION *in_row_ctr, + JDIMENSION in_rows_avail) +{ + my_main_ptr main = (my_main_ptr) cinfo->main; + int ci; + jpeg_component_info *compptr; + boolean writing = (main->pass_mode != JBUF_CRANK_DEST); + + while (main->cur_iMCU_row < cinfo->total_iMCU_rows) { + /* Realign the virtual buffers if at the start of an iMCU row. */ + if (main->rowgroup_ctr == 0) { + for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components; + ci++, compptr++) { + main->buffer[ci] = (*cinfo->mem->access_virt_sarray) + ((j_common_ptr) cinfo, main->whole_image[ci], + main->cur_iMCU_row * (compptr->v_samp_factor * DCTSIZE), + (JDIMENSION) (compptr->v_samp_factor * DCTSIZE), writing); + } + /* In a read pass, pretend we just read some source data. */ + if (! writing) { + *in_row_ctr += cinfo->max_v_samp_factor * DCTSIZE; + main->rowgroup_ctr = DCTSIZE; + } + } + + /* If a write pass, read input data until the current iMCU row is full. */ + /* Note: preprocessor will pad if necessary to fill the last iMCU row. */ + if (writing) { + (*cinfo->prep->pre_process_data) (cinfo, + input_buf, in_row_ctr, in_rows_avail, + main->buffer, &main->rowgroup_ctr, + (JDIMENSION) DCTSIZE); + /* Return to application if we need more data to fill the iMCU row. */ + if (main->rowgroup_ctr < DCTSIZE) + return; + } + + /* Emit data, unless this is a sink-only pass. */ + if (main->pass_mode != JBUF_SAVE_SOURCE) { + if (! (*cinfo->coef->compress_data) (cinfo, main->buffer)) { + /* If compressor did not consume the whole row, then we must need to + * suspend processing and return to the application. In this situation + * we pretend we didn't yet consume the last input row; otherwise, if + * it happened to be the last row of the image, the application would + * think we were done. + */ + if (! main->suspended) { + (*in_row_ctr)--; + main->suspended = TRUE; + } + return; + } + /* We did finish the row. Undo our little suspension hack if a previous + * call suspended; then mark the main buffer empty. + */ + if (main->suspended) { + (*in_row_ctr)++; + main->suspended = FALSE; + } + } + + /* If get here, we are done with this iMCU row. Mark buffer empty. */ + main->rowgroup_ctr = 0; + main->cur_iMCU_row++; + } +} + +#endif /* FULL_MAIN_BUFFER_SUPPORTED */ + + +/* + * Initialize main buffer controller. + */ + +GLOBAL(void) +jinit_c_main_controller (j_compress_ptr cinfo, boolean need_full_buffer) +{ + my_main_ptr main; + int ci; + jpeg_component_info *compptr; + + main = (my_main_ptr) + (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, + SIZEOF(my_main_controller)); + cinfo->main = (struct jpeg_c_main_controller *) main; + main->pub.start_pass = start_pass_main; + + /* We don't need to create a buffer in raw-data mode. */ + if (cinfo->raw_data_in) + return; + + /* Create the buffer. It holds downsampled data, so each component + * may be of a different size. + */ + if (need_full_buffer) { +#ifdef FULL_MAIN_BUFFER_SUPPORTED + /* Allocate a full-image virtual array for each component */ + /* Note we pad the bottom to a multiple of the iMCU height */ + for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components; + ci++, compptr++) { + main->whole_image[ci] = (*cinfo->mem->request_virt_sarray) + ((j_common_ptr) cinfo, JPOOL_IMAGE, FALSE, + compptr->width_in_blocks * compptr->DCT_h_scaled_size, + (JDIMENSION) jround_up((long) compptr->height_in_blocks, + (long) compptr->v_samp_factor) * DCTSIZE, + (JDIMENSION) (compptr->v_samp_factor * compptr->DCT_v_scaled_size)); + } +#else + ERREXIT(cinfo, JERR_BAD_BUFFER_MODE); +#endif + } else { +#ifdef FULL_MAIN_BUFFER_SUPPORTED + main->whole_image[0] = NULL; /* flag for no virtual arrays */ +#endif + /* Allocate a strip buffer for each component */ + for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components; + ci++, compptr++) { + main->buffer[ci] = (*cinfo->mem->alloc_sarray) + ((j_common_ptr) cinfo, JPOOL_IMAGE, + compptr->width_in_blocks * compptr->DCT_h_scaled_size, + (JDIMENSION) (compptr->v_samp_factor * compptr->DCT_v_scaled_size)); + } + } +} diff --git a/jpeg/jcmarker.c b/jpeg/jcmarker.c new file mode 100644 index 0000000..606c19a --- /dev/null +++ b/jpeg/jcmarker.c @@ -0,0 +1,682 @@ +/* + * jcmarker.c + * + * Copyright (C) 1991-1998, Thomas G. Lane. + * Modified 2003-2010 by Guido Vollbeding. + * This file is part of the Independent JPEG Group's software. + * For conditions of distribution and use, see the accompanying README file. + * + * This file contains routines to write JPEG datastream markers. + */ + +#define JPEG_INTERNALS +#include "jinclude.h" +#include "jpeglib.h" + + +typedef enum { /* JPEG marker codes */ + M_SOF0 = 0xc0, + M_SOF1 = 0xc1, + M_SOF2 = 0xc2, + M_SOF3 = 0xc3, + + M_SOF5 = 0xc5, + M_SOF6 = 0xc6, + M_SOF7 = 0xc7, + + M_JPG = 0xc8, + M_SOF9 = 0xc9, + M_SOF10 = 0xca, + M_SOF11 = 0xcb, + + M_SOF13 = 0xcd, + M_SOF14 = 0xce, + M_SOF15 = 0xcf, + + M_DHT = 0xc4, + + M_DAC = 0xcc, + + M_RST0 = 0xd0, + M_RST1 = 0xd1, + M_RST2 = 0xd2, + M_RST3 = 0xd3, + M_RST4 = 0xd4, + M_RST5 = 0xd5, + M_RST6 = 0xd6, + M_RST7 = 0xd7, + + M_SOI = 0xd8, + M_EOI = 0xd9, + M_SOS = 0xda, + M_DQT = 0xdb, + M_DNL = 0xdc, + M_DRI = 0xdd, + M_DHP = 0xde, + M_EXP = 0xdf, + + M_APP0 = 0xe0, + M_APP1 = 0xe1, + M_APP2 = 0xe2, + M_APP3 = 0xe3, + M_APP4 = 0xe4, + M_APP5 = 0xe5, + M_APP6 = 0xe6, + M_APP7 = 0xe7, + M_APP8 = 0xe8, + M_APP9 = 0xe9, + M_APP10 = 0xea, + M_APP11 = 0xeb, + M_APP12 = 0xec, + M_APP13 = 0xed, + M_APP14 = 0xee, + M_APP15 = 0xef, + + M_JPG0 = 0xf0, + M_JPG13 = 0xfd, + M_COM = 0xfe, + + M_TEM = 0x01, + + M_ERROR = 0x100 +} JPEG_MARKER; + + +/* Private state */ + +typedef struct { + struct jpeg_marker_writer pub; /* public fields */ + + unsigned int last_restart_interval; /* last DRI value emitted; 0 after SOI */ +} my_marker_writer; + +typedef my_marker_writer * my_marker_ptr; + + +/* + * Basic output routines. + * + * Note that we do not support suspension while writing a marker. + * Therefore, an application using suspension must ensure that there is + * enough buffer space for the initial markers (typ. 600-700 bytes) before + * calling jpeg_start_compress, and enough space to write the trailing EOI + * (a few bytes) before calling jpeg_finish_compress. Multipass compression + * modes are not supported at all with suspension, so those two are the only + * points where markers will be written. + */ + +LOCAL(void) +emit_byte (j_compress_ptr cinfo, int val) +/* Emit a byte */ +{ + struct jpeg_destination_mgr * dest = cinfo->dest; + + *(dest->next_output_byte)++ = (JOCTET) val; + if (--dest->free_in_buffer == 0) { + if (! (*dest->empty_output_buffer) (cinfo)) + ERREXIT(cinfo, JERR_CANT_SUSPEND); + } +} + + +LOCAL(void) +emit_marker (j_compress_ptr cinfo, JPEG_MARKER mark) +/* Emit a marker code */ +{ + emit_byte(cinfo, 0xFF); + emit_byte(cinfo, (int) mark); +} + + +LOCAL(void) +emit_2bytes (j_compress_ptr cinfo, int value) +/* Emit a 2-byte integer; these are always MSB first in JPEG files */ +{ + emit_byte(cinfo, (value >> 8) & 0xFF); + emit_byte(cinfo, value & 0xFF); +} + + +/* + * Routines to write specific marker types. + */ + +LOCAL(int) +emit_dqt (j_compress_ptr cinfo, int index) +/* Emit a DQT marker */ +/* Returns the precision used (0 = 8bits, 1 = 16bits) for baseline checking */ +{ + JQUANT_TBL * qtbl = cinfo->quant_tbl_ptrs[index]; + int prec; + int i; + + if (qtbl == NULL) + ERREXIT1(cinfo, JERR_NO_QUANT_TABLE, index); + + prec = 0; + for (i = 0; i <= cinfo->lim_Se; i++) { + if (qtbl->quantval[cinfo->natural_order[i]] > 255) + prec = 1; + } + + if (! qtbl->sent_table) { + emit_marker(cinfo, M_DQT); + + emit_2bytes(cinfo, + prec ? cinfo->lim_Se * 2 + 2 + 1 + 2 : cinfo->lim_Se + 1 + 1 + 2); + + emit_byte(cinfo, index + (prec<<4)); + + for (i = 0; i <= cinfo->lim_Se; i++) { + /* The table entries must be emitted in zigzag order. */ + unsigned int qval = qtbl->quantval[cinfo->natural_order[i]]; + if (prec) + emit_byte(cinfo, (int) (qval >> 8)); + emit_byte(cinfo, (int) (qval & 0xFF)); + } + + qtbl->sent_table = TRUE; + } + + return prec; +} + + +LOCAL(void) +emit_dht (j_compress_ptr cinfo, int index, boolean is_ac) +/* Emit a DHT marker */ +{ + JHUFF_TBL * htbl; + int length, i; + + if (is_ac) { + htbl = cinfo->ac_huff_tbl_ptrs[index]; + index += 0x10; /* output index has AC bit set */ + } else { + htbl = cinfo->dc_huff_tbl_ptrs[index]; + } + + if (htbl == NULL) + ERREXIT1(cinfo, JERR_NO_HUFF_TABLE, index); + + if (! htbl->sent_table) { + emit_marker(cinfo, M_DHT); + + length = 0; + for (i = 1; i <= 16; i++) + length += htbl->bits[i]; + + emit_2bytes(cinfo, length + 2 + 1 + 16); + emit_byte(cinfo, index); + + for (i = 1; i <= 16; i++) + emit_byte(cinfo, htbl->bits[i]); + + for (i = 0; i < length; i++) + emit_byte(cinfo, htbl->huffval[i]); + + htbl->sent_table = TRUE; + } +} + + +LOCAL(void) +emit_dac (j_compress_ptr cinfo) +/* Emit a DAC marker */ +/* Since the useful info is so small, we want to emit all the tables in */ +/* one DAC marker. Therefore this routine does its own scan of the table. */ +{ +#ifdef C_ARITH_CODING_SUPPORTED + char dc_in_use[NUM_ARITH_TBLS]; + char ac_in_use[NUM_ARITH_TBLS]; + int length, i; + jpeg_component_info *compptr; + + for (i = 0; i < NUM_ARITH_TBLS; i++) + dc_in_use[i] = ac_in_use[i] = 0; + + for (i = 0; i < cinfo->comps_in_scan; i++) { + compptr = cinfo->cur_comp_info[i]; + /* DC needs no table for refinement scan */ + if (cinfo->Ss == 0 && cinfo->Ah == 0) + dc_in_use[compptr->dc_tbl_no] = 1; + /* AC needs no table when not present */ + if (cinfo->Se) + ac_in_use[compptr->ac_tbl_no] = 1; + } + + length = 0; + for (i = 0; i < NUM_ARITH_TBLS; i++) + length += dc_in_use[i] + ac_in_use[i]; + + if (length) { + emit_marker(cinfo, M_DAC); + + emit_2bytes(cinfo, length*2 + 2); + + for (i = 0; i < NUM_ARITH_TBLS; i++) { + if (dc_in_use[i]) { + emit_byte(cinfo, i); + emit_byte(cinfo, cinfo->arith_dc_L[i] + (cinfo->arith_dc_U[i]<<4)); + } + if (ac_in_use[i]) { + emit_byte(cinfo, i + 0x10); + emit_byte(cinfo, cinfo->arith_ac_K[i]); + } + } + } +#endif /* C_ARITH_CODING_SUPPORTED */ +} + + +LOCAL(void) +emit_dri (j_compress_ptr cinfo) +/* Emit a DRI marker */ +{ + emit_marker(cinfo, M_DRI); + + emit_2bytes(cinfo, 4); /* fixed length */ + + emit_2bytes(cinfo, (int) cinfo->restart_interval); +} + + +LOCAL(void) +emit_sof (j_compress_ptr cinfo, JPEG_MARKER code) +/* Emit a SOF marker */ +{ + int ci; + jpeg_component_info *compptr; + + emit_marker(cinfo, code); + + emit_2bytes(cinfo, 3 * cinfo->num_components + 2 + 5 + 1); /* length */ + + /* Make sure image isn't bigger than SOF field can handle */ + if ((long) cinfo->jpeg_height > 65535L || + (long) cinfo->jpeg_width > 65535L) + ERREXIT1(cinfo, JERR_IMAGE_TOO_BIG, (unsigned int) 65535); + + emit_byte(cinfo, cinfo->data_precision); + emit_2bytes(cinfo, (int) cinfo->jpeg_height); + emit_2bytes(cinfo, (int) cinfo->jpeg_width); + + emit_byte(cinfo, cinfo->num_components); + + for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components; + ci++, compptr++) { + emit_byte(cinfo, compptr->component_id); + emit_byte(cinfo, (compptr->h_samp_factor << 4) + compptr->v_samp_factor); + emit_byte(cinfo, compptr->quant_tbl_no); + } +} + + +LOCAL(void) +emit_sos (j_compress_ptr cinfo) +/* Emit a SOS marker */ +{ + int i, td, ta; + jpeg_component_info *compptr; + + emit_marker(cinfo, M_SOS); + + emit_2bytes(cinfo, 2 * cinfo->comps_in_scan + 2 + 1 + 3); /* length */ + + emit_byte(cinfo, cinfo->comps_in_scan); + + for (i = 0; i < cinfo->comps_in_scan; i++) { + compptr = cinfo->cur_comp_info[i]; + emit_byte(cinfo, compptr->component_id); + + /* We emit 0 for unused field(s); this is recommended by the P&M text + * but does not seem to be specified in the standard. + */ + + /* DC needs no table for refinement scan */ + td = cinfo->Ss == 0 && cinfo->Ah == 0 ? compptr->dc_tbl_no : 0; + /* AC needs no table when not present */ + ta = cinfo->Se ? compptr->ac_tbl_no : 0; + + emit_byte(cinfo, (td << 4) + ta); + } + + emit_byte(cinfo, cinfo->Ss); + emit_byte(cinfo, cinfo->Se); + emit_byte(cinfo, (cinfo->Ah << 4) + cinfo->Al); +} + + +LOCAL(void) +emit_pseudo_sos (j_compress_ptr cinfo) +/* Emit a pseudo SOS marker */ +{ + emit_marker(cinfo, M_SOS); + + emit_2bytes(cinfo, 2 + 1 + 3); /* length */ + + emit_byte(cinfo, 0); /* Ns */ + + emit_byte(cinfo, 0); /* Ss */ + emit_byte(cinfo, cinfo->block_size * cinfo->block_size - 1); /* Se */ + emit_byte(cinfo, 0); /* Ah/Al */ +} + + +LOCAL(void) +emit_jfif_app0 (j_compress_ptr cinfo) +/* Emit a JFIF-compliant APP0 marker */ +{ + /* + * Length of APP0 block (2 bytes) + * Block ID (4 bytes - ASCII "JFIF") + * Zero byte (1 byte to terminate the ID string) + * Version Major, Minor (2 bytes - major first) + * Units (1 byte - 0x00 = none, 0x01 = inch, 0x02 = cm) + * Xdpu (2 bytes - dots per unit horizontal) + * Ydpu (2 bytes - dots per unit vertical) + * Thumbnail X size (1 byte) + * Thumbnail Y size (1 byte) + */ + + emit_marker(cinfo, M_APP0); + + emit_2bytes(cinfo, 2 + 4 + 1 + 2 + 1 + 2 + 2 + 1 + 1); /* length */ + + emit_byte(cinfo, 0x4A); /* Identifier: ASCII "JFIF" */ + emit_byte(cinfo, 0x46); + emit_byte(cinfo, 0x49); + emit_byte(cinfo, 0x46); + emit_byte(cinfo, 0); + emit_byte(cinfo, cinfo->JFIF_major_version); /* Version fields */ + emit_byte(cinfo, cinfo->JFIF_minor_version); + emit_byte(cinfo, cinfo->density_unit); /* Pixel size information */ + emit_2bytes(cinfo, (int) cinfo->X_density); + emit_2bytes(cinfo, (int) cinfo->Y_density); + emit_byte(cinfo, 0); /* No thumbnail image */ + emit_byte(cinfo, 0); +} + + +LOCAL(void) +emit_adobe_app14 (j_compress_ptr cinfo) +/* Emit an Adobe APP14 marker */ +{ + /* + * Length of APP14 block (2 bytes) + * Block ID (5 bytes - ASCII "Adobe") + * Version Number (2 bytes - currently 100) + * Flags0 (2 bytes - currently 0) + * Flags1 (2 bytes - currently 0) + * Color transform (1 byte) + * + * Although Adobe TN 5116 mentions Version = 101, all the Adobe files + * now in circulation seem to use Version = 100, so that's what we write. + * + * We write the color transform byte as 1 if the JPEG color space is + * YCbCr, 2 if it's YCCK, 0 otherwise. Adobe's definition has to do with + * whether the encoder performed a transformation, which is pretty useless. + */ + + emit_marker(cinfo, M_APP14); + + emit_2bytes(cinfo, 2 + 5 + 2 + 2 + 2 + 1); /* length */ + + emit_byte(cinfo, 0x41); /* Identifier: ASCII "Adobe" */ + emit_byte(cinfo, 0x64); + emit_byte(cinfo, 0x6F); + emit_byte(cinfo, 0x62); + emit_byte(cinfo, 0x65); + emit_2bytes(cinfo, 100); /* Version */ + emit_2bytes(cinfo, 0); /* Flags0 */ + emit_2bytes(cinfo, 0); /* Flags1 */ + switch (cinfo->jpeg_color_space) { + case JCS_YCbCr: + emit_byte(cinfo, 1); /* Color transform = 1 */ + break; + case JCS_YCCK: + emit_byte(cinfo, 2); /* Color transform = 2 */ + break; + default: + emit_byte(cinfo, 0); /* Color transform = 0 */ + break; + } +} + + +/* + * These routines allow writing an arbitrary marker with parameters. + * The only intended use is to emit COM or APPn markers after calling + * write_file_header and before calling write_frame_header. + * Other uses are not guaranteed to produce desirable results. + * Counting the parameter bytes properly is the caller's responsibility. + */ + +METHODDEF(void) +write_marker_header (j_compress_ptr cinfo, int marker, unsigned int datalen) +/* Emit an arbitrary marker header */ +{ + if (datalen > (unsigned int) 65533) /* safety check */ + ERREXIT(cinfo, JERR_BAD_LENGTH); + + emit_marker(cinfo, (JPEG_MARKER) marker); + + emit_2bytes(cinfo, (int) (datalen + 2)); /* total length */ +} + +METHODDEF(void) +write_marker_byte (j_compress_ptr cinfo, int val) +/* Emit one byte of marker parameters following write_marker_header */ +{ + emit_byte(cinfo, val); +} + + +/* + * Write datastream header. + * This consists of an SOI and optional APPn markers. + * We recommend use of the JFIF marker, but not the Adobe marker, + * when using YCbCr or grayscale data. The JFIF marker should NOT + * be used for any other JPEG colorspace. The Adobe marker is helpful + * to distinguish RGB, CMYK, and YCCK colorspaces. + * Note that an application can write additional header markers after + * jpeg_start_compress returns. + */ + +METHODDEF(void) +write_file_header (j_compress_ptr cinfo) +{ + my_marker_ptr marker = (my_marker_ptr) cinfo->marker; + + emit_marker(cinfo, M_SOI); /* first the SOI */ + + /* SOI is defined to reset restart interval to 0 */ + marker->last_restart_interval = 0; + + if (cinfo->write_JFIF_header) /* next an optional JFIF APP0 */ + emit_jfif_app0(cinfo); + if (cinfo->write_Adobe_marker) /* next an optional Adobe APP14 */ + emit_adobe_app14(cinfo); +} + + +/* + * Write frame header. + * This consists of DQT and SOFn markers, and a conditional pseudo SOS marker. + * Note that we do not emit the SOF until we have emitted the DQT(s). + * This avoids compatibility problems with incorrect implementations that + * try to error-check the quant table numbers as soon as they see the SOF. + */ + +METHODDEF(void) +write_frame_header (j_compress_ptr cinfo) +{ + int ci, prec; + boolean is_baseline; + jpeg_component_info *compptr; + + /* Emit DQT for each quantization table. + * Note that emit_dqt() suppresses any duplicate tables. + */ + prec = 0; + for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components; + ci++, compptr++) { + prec += emit_dqt(cinfo, compptr->quant_tbl_no); + } + /* now prec is nonzero iff there are any 16-bit quant tables. */ + + /* Check for a non-baseline specification. + * Note we assume that Huffman table numbers won't be changed later. + */ + if (cinfo->arith_code || cinfo->progressive_mode || + cinfo->data_precision != 8 || cinfo->block_size != DCTSIZE) { + is_baseline = FALSE; + } else { + is_baseline = TRUE; + for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components; + ci++, compptr++) { + if (compptr->dc_tbl_no > 1 || compptr->ac_tbl_no > 1) + is_baseline = FALSE; + } + if (prec && is_baseline) { + is_baseline = FALSE; + /* If it's baseline except for quantizer size, warn the user */ + TRACEMS(cinfo, 0, JTRC_16BIT_TABLES); + } + } + + /* Emit the proper SOF marker */ + if (cinfo->arith_code) { + if (cinfo->progressive_mode) + emit_sof(cinfo, M_SOF10); /* SOF code for progressive arithmetic */ + else + emit_sof(cinfo, M_SOF9); /* SOF code for sequential arithmetic */ + } else { + if (cinfo->progressive_mode) + emit_sof(cinfo, M_SOF2); /* SOF code for progressive Huffman */ + else if (is_baseline) + emit_sof(cinfo, M_SOF0); /* SOF code for baseline implementation */ + else + emit_sof(cinfo, M_SOF1); /* SOF code for non-baseline Huffman file */ + } + + /* Check to emit pseudo SOS marker */ + if (cinfo->progressive_mode && cinfo->block_size != DCTSIZE) + emit_pseudo_sos(cinfo); +} + + +/* + * Write scan header. + * This consists of DHT or DAC markers, optional DRI, and SOS. + * Compressed data will be written following the SOS. + */ + +METHODDEF(void) +write_scan_header (j_compress_ptr cinfo) +{ + my_marker_ptr marker = (my_marker_ptr) cinfo->marker; + int i; + jpeg_component_info *compptr; + + if (cinfo->arith_code) { + /* Emit arith conditioning info. We may have some duplication + * if the file has multiple scans, but it's so small it's hardly + * worth worrying about. + */ + emit_dac(cinfo); + } else { + /* Emit Huffman tables. + * Note that emit_dht() suppresses any duplicate tables. + */ + for (i = 0; i < cinfo->comps_in_scan; i++) { + compptr = cinfo->cur_comp_info[i]; + /* DC needs no table for refinement scan */ + if (cinfo->Ss == 0 && cinfo->Ah == 0) + emit_dht(cinfo, compptr->dc_tbl_no, FALSE); + /* AC needs no table when not present */ + if (cinfo->Se) + emit_dht(cinfo, compptr->ac_tbl_no, TRUE); + } + } + + /* Emit DRI if required --- note that DRI value could change for each scan. + * We avoid wasting space with unnecessary DRIs, however. + */ + if (cinfo->restart_interval != marker->last_restart_interval) { + emit_dri(cinfo); + marker->last_restart_interval = cinfo->restart_interval; + } + + emit_sos(cinfo); +} + + +/* + * Write datastream trailer. + */ + +METHODDEF(void) +write_file_trailer (j_compress_ptr cinfo) +{ + emit_marker(cinfo, M_EOI); +} + + +/* + * Write an abbreviated table-specification datastream. + * This consists of SOI, DQT and DHT tables, and EOI. + * Any table that is defined and not marked sent_table = TRUE will be + * emitted. Note that all tables will be marked sent_table = TRUE at exit. + */ + +METHODDEF(void) +write_tables_only (j_compress_ptr cinfo) +{ + int i; + + emit_marker(cinfo, M_SOI); + + for (i = 0; i < NUM_QUANT_TBLS; i++) { + if (cinfo->quant_tbl_ptrs[i] != NULL) + (void) emit_dqt(cinfo, i); + } + + if (! cinfo->arith_code) { + for (i = 0; i < NUM_HUFF_TBLS; i++) { + if (cinfo->dc_huff_tbl_ptrs[i] != NULL) + emit_dht(cinfo, i, FALSE); + if (cinfo->ac_huff_tbl_ptrs[i] != NULL) + emit_dht(cinfo, i, TRUE); + } + } + + emit_marker(cinfo, M_EOI); +} + + +/* + * Initialize the marker writer module. + */ + +GLOBAL(void) +jinit_marker_writer (j_compress_ptr cinfo) +{ + my_marker_ptr marker; + + /* Create the subobject */ + marker = (my_marker_ptr) + (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, + SIZEOF(my_marker_writer)); + cinfo->marker = (struct jpeg_marker_writer *) marker; + /* Initialize method pointers */ + marker->pub.write_file_header = write_file_header; + marker->pub.write_frame_header = write_frame_header; + marker->pub.write_scan_header = write_scan_header; + marker->pub.write_file_trailer = write_file_trailer; + marker->pub.write_tables_only = write_tables_only; + marker->pub.write_marker_header = write_marker_header; + marker->pub.write_marker_byte = write_marker_byte; + /* Initialize private state */ + marker->last_restart_interval = 0; +} diff --git a/jpeg/jcmaster.c b/jpeg/jcmaster.c new file mode 100644 index 0000000..caf80a5 --- /dev/null +++ b/jpeg/jcmaster.c @@ -0,0 +1,858 @@ +/* + * jcmaster.c + * + * Copyright (C) 1991-1997, Thomas G. Lane. + * Modified 2003-2011 by Guido Vollbeding. + * This file is part of the Independent JPEG Group's software. + * For conditions of distribution and use, see the accompanying README file. + * + * This file contains master control logic for the JPEG compressor. + * These routines are concerned with parameter validation, initial setup, + * and inter-pass control (determining the number of passes and the work + * to be done in each pass). + */ + +#define JPEG_INTERNALS +#include "jinclude.h" +#include "jpeglib.h" + + +/* Private state */ + +typedef enum { + main_pass, /* input data, also do first output step */ + huff_opt_pass, /* Huffman code optimization pass */ + output_pass /* data output pass */ +} c_pass_type; + +typedef struct { + struct jpeg_comp_master pub; /* public fields */ + + c_pass_type pass_type; /* the type of the current pass */ + + int pass_number; /* # of passes completed */ + int total_passes; /* total # of passes needed */ + + int scan_number; /* current index in scan_info[] */ +} my_comp_master; + +typedef my_comp_master * my_master_ptr; + + +/* + * Support routines that do various essential calculations. + */ + +/* + * Compute JPEG image dimensions and related values. + * NOTE: this is exported for possible use by application. + * Hence it mustn't do anything that can't be done twice. + */ + +GLOBAL(void) +jpeg_calc_jpeg_dimensions (j_compress_ptr cinfo) +/* Do computations that are needed before master selection phase */ +{ +#ifdef DCT_SCALING_SUPPORTED + + /* Sanity check on input image dimensions to prevent overflow in + * following calculation. + * We do check jpeg_width and jpeg_height in initial_setup below, + * but image_width and image_height can come from arbitrary data, + * and we need some space for multiplication by block_size. + */ + if (((long) cinfo->image_width >> 24) || ((long) cinfo->image_height >> 24)) + ERREXIT1(cinfo, JERR_IMAGE_TOO_BIG, (unsigned int) JPEG_MAX_DIMENSION); + + /* Compute actual JPEG image dimensions and DCT scaling choices. */ + if (cinfo->scale_num >= cinfo->scale_denom * cinfo->block_size) { + /* Provide block_size/1 scaling */ + cinfo->jpeg_width = cinfo->image_width * cinfo->block_size; + cinfo->jpeg_height = cinfo->image_height * cinfo->block_size; + cinfo->min_DCT_h_scaled_size = 1; + cinfo->min_DCT_v_scaled_size = 1; + } else if (cinfo->scale_num * 2 >= cinfo->scale_denom * cinfo->block_size) { + /* Provide block_size/2 scaling */ + cinfo->jpeg_width = (JDIMENSION) + jdiv_round_up((long) cinfo->image_width * cinfo->block_size, 2L); + cinfo->jpeg_height = (JDIMENSION) + jdiv_round_up((long) cinfo->image_height * cinfo->block_size, 2L); + cinfo->min_DCT_h_scaled_size = 2; + cinfo->min_DCT_v_scaled_size = 2; + } else if (cinfo->scale_num * 3 >= cinfo->scale_denom * cinfo->block_size) { + /* Provide block_size/3 scaling */ + cinfo->jpeg_width = (JDIMENSION) + jdiv_round_up((long) cinfo->image_width * cinfo->block_size, 3L); + cinfo->jpeg_height = (JDIMENSION) + jdiv_round_up((long) cinfo->image_height * cinfo->block_size, 3L); + cinfo->min_DCT_h_scaled_size = 3; + cinfo->min_DCT_v_scaled_size = 3; + } else if (cinfo->scale_num * 4 >= cinfo->scale_denom * cinfo->block_size) { + /* Provide block_size/4 scaling */ + cinfo->jpeg_width = (JDIMENSION) + jdiv_round_up((long) cinfo->image_width * cinfo->block_size, 4L); + cinfo->jpeg_height = (JDIMENSION) + jdiv_round_up((long) cinfo->image_height * cinfo->block_size, 4L); + cinfo->min_DCT_h_scaled_size = 4; + cinfo->min_DCT_v_scaled_size = 4; + } else if (cinfo->scale_num * 5 >= cinfo->scale_denom * cinfo->block_size) { + /* Provide block_size/5 scaling */ + cinfo->jpeg_width = (JDIMENSION) + jdiv_round_up((long) cinfo->image_width * cinfo->block_size, 5L); + cinfo->jpeg_height = (JDIMENSION) + jdiv_round_up((long) cinfo->image_height * cinfo->block_size, 5L); + cinfo->min_DCT_h_scaled_size = 5; + cinfo->min_DCT_v_scaled_size = 5; + } else if (cinfo->scale_num * 6 >= cinfo->scale_denom * cinfo->block_size) { + /* Provide block_size/6 scaling */ + cinfo->jpeg_width = (JDIMENSION) + jdiv_round_up((long) cinfo->image_width * cinfo->block_size, 6L); + cinfo->jpeg_height = (JDIMENSION) + jdiv_round_up((long) cinfo->image_height * cinfo->block_size, 6L); + cinfo->min_DCT_h_scaled_size = 6; + cinfo->min_DCT_v_scaled_size = 6; + } else if (cinfo->scale_num * 7 >= cinfo->scale_denom * cinfo->block_size) { + /* Provide block_size/7 scaling */ + cinfo->jpeg_width = (JDIMENSION) + jdiv_round_up((long) cinfo->image_width * cinfo->block_size, 7L); + cinfo->jpeg_height = (JDIMENSION) + jdiv_round_up((long) cinfo->image_height * cinfo->block_size, 7L); + cinfo->min_DCT_h_scaled_size = 7; + cinfo->min_DCT_v_scaled_size = 7; + } else if (cinfo->scale_num * 8 >= cinfo->scale_denom * cinfo->block_size) { + /* Provide block_size/8 scaling */ + cinfo->jpeg_width = (JDIMENSION) + jdiv_round_up((long) cinfo->image_width * cinfo->block_size, 8L); + cinfo->jpeg_height = (JDIMENSION) + jdiv_round_up((long) cinfo->image_height * cinfo->block_size, 8L); + cinfo->min_DCT_h_scaled_size = 8; + cinfo->min_DCT_v_scaled_size = 8; + } else if (cinfo->scale_num * 9 >= cinfo->scale_denom * cinfo->block_size) { + /* Provide block_size/9 scaling */ + cinfo->jpeg_width = (JDIMENSION) + jdiv_round_up((long) cinfo->image_width * cinfo->block_size, 9L); + cinfo->jpeg_height = (JDIMENSION) + jdiv_round_up((long) cinfo->image_height * cinfo->block_size, 9L); + cinfo->min_DCT_h_scaled_size = 9; + cinfo->min_DCT_v_scaled_size = 9; + } else if (cinfo->scale_num * 10 >= cinfo->scale_denom * cinfo->block_size) { + /* Provide block_size/10 scaling */ + cinfo->jpeg_width = (JDIMENSION) + jdiv_round_up((long) cinfo->image_width * cinfo->block_size, 10L); + cinfo->jpeg_height = (JDIMENSION) + jdiv_round_up((long) cinfo->image_height * cinfo->block_size, 10L); + cinfo->min_DCT_h_scaled_size = 10; + cinfo->min_DCT_v_scaled_size = 10; + } else if (cinfo->scale_num * 11 >= cinfo->scale_denom * cinfo->block_size) { + /* Provide block_size/11 scaling */ + cinfo->jpeg_width = (JDIMENSION) + jdiv_round_up((long) cinfo->image_width * cinfo->block_size, 11L); + cinfo->jpeg_height = (JDIMENSION) + jdiv_round_up((long) cinfo->image_height * cinfo->block_size, 11L); + cinfo->min_DCT_h_scaled_size = 11; + cinfo->min_DCT_v_scaled_size = 11; + } else if (cinfo->scale_num * 12 >= cinfo->scale_denom * cinfo->block_size) { + /* Provide block_size/12 scaling */ + cinfo->jpeg_width = (JDIMENSION) + jdiv_round_up((long) cinfo->image_width * cinfo->block_size, 12L); + cinfo->jpeg_height = (JDIMENSION) + jdiv_round_up((long) cinfo->image_height * cinfo->block_size, 12L); + cinfo->min_DCT_h_scaled_size = 12; + cinfo->min_DCT_v_scaled_size = 12; + } else if (cinfo->scale_num * 13 >= cinfo->scale_denom * cinfo->block_size) { + /* Provide block_size/13 scaling */ + cinfo->jpeg_width = (JDIMENSION) + jdiv_round_up((long) cinfo->image_width * cinfo->block_size, 13L); + cinfo->jpeg_height = (JDIMENSION) + jdiv_round_up((long) cinfo->image_height * cinfo->block_size, 13L); + cinfo->min_DCT_h_scaled_size = 13; + cinfo->min_DCT_v_scaled_size = 13; + } else if (cinfo->scale_num * 14 >= cinfo->scale_denom * cinfo->block_size) { + /* Provide block_size/14 scaling */ + cinfo->jpeg_width = (JDIMENSION) + jdiv_round_up((long) cinfo->image_width * cinfo->block_size, 14L); + cinfo->jpeg_height = (JDIMENSION) + jdiv_round_up((long) cinfo->image_height * cinfo->block_size, 14L); + cinfo->min_DCT_h_scaled_size = 14; + cinfo->min_DCT_v_scaled_size = 14; + } else if (cinfo->scale_num * 15 >= cinfo->scale_denom * cinfo->block_size) { + /* Provide block_size/15 scaling */ + cinfo->jpeg_width = (JDIMENSION) + jdiv_round_up((long) cinfo->image_width * cinfo->block_size, 15L); + cinfo->jpeg_height = (JDIMENSION) + jdiv_round_up((long) cinfo->image_height * cinfo->block_size, 15L); + cinfo->min_DCT_h_scaled_size = 15; + cinfo->min_DCT_v_scaled_size = 15; + } else { + /* Provide block_size/16 scaling */ + cinfo->jpeg_width = (JDIMENSION) + jdiv_round_up((long) cinfo->image_width * cinfo->block_size, 16L); + cinfo->jpeg_height = (JDIMENSION) + jdiv_round_up((long) cinfo->image_height * cinfo->block_size, 16L); + cinfo->min_DCT_h_scaled_size = 16; + cinfo->min_DCT_v_scaled_size = 16; + } + +#else /* !DCT_SCALING_SUPPORTED */ + + /* Hardwire it to "no scaling" */ + cinfo->jpeg_width = cinfo->image_width; + cinfo->jpeg_height = cinfo->image_height; + cinfo->min_DCT_h_scaled_size = DCTSIZE; + cinfo->min_DCT_v_scaled_size = DCTSIZE; + +#endif /* DCT_SCALING_SUPPORTED */ +} + + +LOCAL(void) +jpeg_calc_trans_dimensions (j_compress_ptr cinfo) +{ + if (cinfo->min_DCT_h_scaled_size != cinfo->min_DCT_v_scaled_size) + ERREXIT2(cinfo, JERR_BAD_DCTSIZE, + cinfo->min_DCT_h_scaled_size, cinfo->min_DCT_v_scaled_size); + + cinfo->block_size = cinfo->min_DCT_h_scaled_size; +} + + +LOCAL(void) +initial_setup (j_compress_ptr cinfo, boolean transcode_only) +/* Do computations that are needed before master selection phase */ +{ + int ci, ssize; + jpeg_component_info *compptr; + long samplesperrow; + JDIMENSION jd_samplesperrow; + + if (transcode_only) + jpeg_calc_trans_dimensions(cinfo); + else + jpeg_calc_jpeg_dimensions(cinfo); + + /* Sanity check on block_size */ + if (cinfo->block_size < 1 || cinfo->block_size > 16) + ERREXIT2(cinfo, JERR_BAD_DCTSIZE, cinfo->block_size, cinfo->block_size); + + /* Derive natural_order from block_size */ + switch (cinfo->block_size) { + case 2: cinfo->natural_order = jpeg_natural_order2; break; + case 3: cinfo->natural_order = jpeg_natural_order3; break; + case 4: cinfo->natural_order = jpeg_natural_order4; break; + case 5: cinfo->natural_order = jpeg_natural_order5; break; + case 6: cinfo->natural_order = jpeg_natural_order6; break; + case 7: cinfo->natural_order = jpeg_natural_order7; break; + default: cinfo->natural_order = jpeg_natural_order; break; + } + + /* Derive lim_Se from block_size */ + cinfo->lim_Se = cinfo->block_size < DCTSIZE ? + cinfo->block_size * cinfo->block_size - 1 : DCTSIZE2-1; + + /* Sanity check on image dimensions */ + if (cinfo->jpeg_height <= 0 || cinfo->jpeg_width <= 0 || + cinfo->num_components <= 0 || cinfo->input_components <= 0) + ERREXIT(cinfo, JERR_EMPTY_IMAGE); + + /* Make sure image isn't bigger than I can handle */ + if ((long) cinfo->jpeg_height > (long) JPEG_MAX_DIMENSION || + (long) cinfo->jpeg_width > (long) JPEG_MAX_DIMENSION) + ERREXIT1(cinfo, JERR_IMAGE_TOO_BIG, (unsigned int) JPEG_MAX_DIMENSION); + + /* Width of an input scanline must be representable as JDIMENSION. */ + samplesperrow = (long) cinfo->image_width * (long) cinfo->input_components; + jd_samplesperrow = (JDIMENSION) samplesperrow; + if ((long) jd_samplesperrow != samplesperrow) + ERREXIT(cinfo, JERR_WIDTH_OVERFLOW); + + /* For now, precision must match compiled-in value... */ + if (cinfo->data_precision != BITS_IN_JSAMPLE) + ERREXIT1(cinfo, JERR_BAD_PRECISION, cinfo->data_precision); + + /* Check that number of components won't exceed internal array sizes */ + if (cinfo->num_components > MAX_COMPONENTS) + ERREXIT2(cinfo, JERR_COMPONENT_COUNT, cinfo->num_components, + MAX_COMPONENTS); + + /* Compute maximum sampling factors; check factor validity */ + cinfo->max_h_samp_factor = 1; + cinfo->max_v_samp_factor = 1; + for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components; + ci++, compptr++) { + if (compptr->h_samp_factor<=0 || compptr->h_samp_factor>MAX_SAMP_FACTOR || + compptr->v_samp_factor<=0 || compptr->v_samp_factor>MAX_SAMP_FACTOR) + ERREXIT(cinfo, JERR_BAD_SAMPLING); + cinfo->max_h_samp_factor = MAX(cinfo->max_h_samp_factor, + compptr->h_samp_factor); + cinfo->max_v_samp_factor = MAX(cinfo->max_v_samp_factor, + compptr->v_samp_factor); + } + + /* Compute dimensions of components */ + for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components; + ci++, compptr++) { + /* Fill in the correct component_index value; don't rely on application */ + compptr->component_index = ci; + /* In selecting the actual DCT scaling for each component, we try to + * scale down the chroma components via DCT scaling rather than downsampling. + * This saves time if the downsampler gets to use 1:1 scaling. + * Note this code adapts subsampling ratios which are powers of 2. + */ + ssize = 1; +#ifdef DCT_SCALING_SUPPORTED + while (cinfo->min_DCT_h_scaled_size * ssize <= + (cinfo->do_fancy_downsampling ? DCTSIZE : DCTSIZE / 2) && + (cinfo->max_h_samp_factor % (compptr->h_samp_factor * ssize * 2)) == 0) { + ssize = ssize * 2; + } +#endif + compptr->DCT_h_scaled_size = cinfo->min_DCT_h_scaled_size * ssize; + ssize = 1; +#ifdef DCT_SCALING_SUPPORTED + while (cinfo->min_DCT_v_scaled_size * ssize <= + (cinfo->do_fancy_downsampling ? DCTSIZE : DCTSIZE / 2) && + (cinfo->max_v_samp_factor % (compptr->v_samp_factor * ssize * 2)) == 0) { + ssize = ssize * 2; + } +#endif + compptr->DCT_v_scaled_size = cinfo->min_DCT_v_scaled_size * ssize; + + /* We don't support DCT ratios larger than 2. */ + if (compptr->DCT_h_scaled_size > compptr->DCT_v_scaled_size * 2) + compptr->DCT_h_scaled_size = compptr->DCT_v_scaled_size * 2; + else if (compptr->DCT_v_scaled_size > compptr->DCT_h_scaled_size * 2) + compptr->DCT_v_scaled_size = compptr->DCT_h_scaled_size * 2; + + /* Size in DCT blocks */ + compptr->width_in_blocks = (JDIMENSION) + jdiv_round_up((long) cinfo->jpeg_width * (long) compptr->h_samp_factor, + (long) (cinfo->max_h_samp_factor * cinfo->block_size)); + compptr->height_in_blocks = (JDIMENSION) + jdiv_round_up((long) cinfo->jpeg_height * (long) compptr->v_samp_factor, + (long) (cinfo->max_v_samp_factor * cinfo->block_size)); + /* Size in samples */ + compptr->downsampled_width = (JDIMENSION) + jdiv_round_up((long) cinfo->jpeg_width * + (long) (compptr->h_samp_factor * compptr->DCT_h_scaled_size), + (long) (cinfo->max_h_samp_factor * cinfo->block_size)); + compptr->downsampled_height = (JDIMENSION) + jdiv_round_up((long) cinfo->jpeg_height * + (long) (compptr->v_samp_factor * compptr->DCT_v_scaled_size), + (long) (cinfo->max_v_samp_factor * cinfo->block_size)); + /* Mark component needed (this flag isn't actually used for compression) */ + compptr->component_needed = TRUE; + } + + /* Compute number of fully interleaved MCU rows (number of times that + * main controller will call coefficient controller). + */ + cinfo->total_iMCU_rows = (JDIMENSION) + jdiv_round_up((long) cinfo->jpeg_height, + (long) (cinfo->max_v_samp_factor * cinfo->block_size)); +} + + +#ifdef C_MULTISCAN_FILES_SUPPORTED + +LOCAL(void) +validate_script (j_compress_ptr cinfo) +/* Verify that the scan script in cinfo->scan_info[] is valid; also + * determine whether it uses progressive JPEG, and set cinfo->progressive_mode. + */ +{ + const jpeg_scan_info * scanptr; + int scanno, ncomps, ci, coefi, thisi; + int Ss, Se, Ah, Al; + boolean component_sent[MAX_COMPONENTS]; +#ifdef C_PROGRESSIVE_SUPPORTED + int * last_bitpos_ptr; + int last_bitpos[MAX_COMPONENTS][DCTSIZE2]; + /* -1 until that coefficient has been seen; then last Al for it */ +#endif + + if (cinfo->num_scans <= 0) + ERREXIT1(cinfo, JERR_BAD_SCAN_SCRIPT, 0); + + /* For sequential JPEG, all scans must have Ss=0, Se=DCTSIZE2-1; + * for progressive JPEG, no scan can have this. + */ + scanptr = cinfo->scan_info; + if (scanptr->Ss != 0 || scanptr->Se != DCTSIZE2-1) { +#ifdef C_PROGRESSIVE_SUPPORTED + cinfo->progressive_mode = TRUE; + last_bitpos_ptr = & last_bitpos[0][0]; + for (ci = 0; ci < cinfo->num_components; ci++) + for (coefi = 0; coefi < DCTSIZE2; coefi++) + *last_bitpos_ptr++ = -1; +#else + ERREXIT(cinfo, JERR_NOT_COMPILED); +#endif + } else { + cinfo->progressive_mode = FALSE; + for (ci = 0; ci < cinfo->num_components; ci++) + component_sent[ci] = FALSE; + } + + for (scanno = 1; scanno <= cinfo->num_scans; scanptr++, scanno++) { + /* Validate component indexes */ + ncomps = scanptr->comps_in_scan; + if (ncomps <= 0 || ncomps > MAX_COMPS_IN_SCAN) + ERREXIT2(cinfo, JERR_COMPONENT_COUNT, ncomps, MAX_COMPS_IN_SCAN); + for (ci = 0; ci < ncomps; ci++) { + thisi = scanptr->component_index[ci]; + if (thisi < 0 || thisi >= cinfo->num_components) + ERREXIT1(cinfo, JERR_BAD_SCAN_SCRIPT, scanno); + /* Components must appear in SOF order within each scan */ + if (ci > 0 && thisi <= scanptr->component_index[ci-1]) + ERREXIT1(cinfo, JERR_BAD_SCAN_SCRIPT, scanno); + } + /* Validate progression parameters */ + Ss = scanptr->Ss; + Se = scanptr->Se; + Ah = scanptr->Ah; + Al = scanptr->Al; + if (cinfo->progressive_mode) { +#ifdef C_PROGRESSIVE_SUPPORTED + /* The JPEG spec simply gives the ranges 0..13 for Ah and Al, but that + * seems wrong: the upper bound ought to depend on data precision. + * Perhaps they really meant 0..N+1 for N-bit precision. + * Here we allow 0..10 for 8-bit data; Al larger than 10 results in + * out-of-range reconstructed DC values during the first DC scan, + * which might cause problems for some decoders. + */ +#if BITS_IN_JSAMPLE == 8 +#define MAX_AH_AL 10 +#else +#define MAX_AH_AL 13 +#endif + if (Ss < 0 || Ss >= DCTSIZE2 || Se < Ss || Se >= DCTSIZE2 || + Ah < 0 || Ah > MAX_AH_AL || Al < 0 || Al > MAX_AH_AL) + ERREXIT1(cinfo, JERR_BAD_PROG_SCRIPT, scanno); + if (Ss == 0) { + if (Se != 0) /* DC and AC together not OK */ + ERREXIT1(cinfo, JERR_BAD_PROG_SCRIPT, scanno); + } else { + if (ncomps != 1) /* AC scans must be for only one component */ + ERREXIT1(cinfo, JERR_BAD_PROG_SCRIPT, scanno); + } + for (ci = 0; ci < ncomps; ci++) { + last_bitpos_ptr = & last_bitpos[scanptr->component_index[ci]][0]; + if (Ss != 0 && last_bitpos_ptr[0] < 0) /* AC without prior DC scan */ + ERREXIT1(cinfo, JERR_BAD_PROG_SCRIPT, scanno); + for (coefi = Ss; coefi <= Se; coefi++) { + if (last_bitpos_ptr[coefi] < 0) { + /* first scan of this coefficient */ + if (Ah != 0) + ERREXIT1(cinfo, JERR_BAD_PROG_SCRIPT, scanno); + } else { + /* not first scan */ + if (Ah != last_bitpos_ptr[coefi] || Al != Ah-1) + ERREXIT1(cinfo, JERR_BAD_PROG_SCRIPT, scanno); + } + last_bitpos_ptr[coefi] = Al; + } + } +#endif + } else { + /* For sequential JPEG, all progression parameters must be these: */ + if (Ss != 0 || Se != DCTSIZE2-1 || Ah != 0 || Al != 0) + ERREXIT1(cinfo, JERR_BAD_PROG_SCRIPT, scanno); + /* Make sure components are not sent twice */ + for (ci = 0; ci < ncomps; ci++) { + thisi = scanptr->component_index[ci]; + if (component_sent[thisi]) + ERREXIT1(cinfo, JERR_BAD_SCAN_SCRIPT, scanno); + component_sent[thisi] = TRUE; + } + } + } + + /* Now verify that everything got sent. */ + if (cinfo->progressive_mode) { +#ifdef C_PROGRESSIVE_SUPPORTED + /* For progressive mode, we only check that at least some DC data + * got sent for each component; the spec does not require that all bits + * of all coefficients be transmitted. Would it be wiser to enforce + * transmission of all coefficient bits?? + */ + for (ci = 0; ci < cinfo->num_components; ci++) { + if (last_bitpos[ci][0] < 0) + ERREXIT(cinfo, JERR_MISSING_DATA); + } +#endif + } else { + for (ci = 0; ci < cinfo->num_components; ci++) { + if (! component_sent[ci]) + ERREXIT(cinfo, JERR_MISSING_DATA); + } + } +} + + +LOCAL(void) +reduce_script (j_compress_ptr cinfo) +/* Adapt scan script for use with reduced block size; + * assume that script has been validated before. + */ +{ + jpeg_scan_info * scanptr; + int idxout, idxin; + + /* Circumvent const declaration for this function */ + scanptr = (jpeg_scan_info *) cinfo->scan_info; + idxout = 0; + + for (idxin = 0; idxin < cinfo->num_scans; idxin++) { + /* After skipping, idxout becomes smaller than idxin */ + if (idxin != idxout) + /* Copy rest of data; + * note we stay in given chunk of allocated memory. + */ + scanptr[idxout] = scanptr[idxin]; + if (scanptr[idxout].Ss > cinfo->lim_Se) + /* Entire scan out of range - skip this entry */ + continue; + if (scanptr[idxout].Se > cinfo->lim_Se) + /* Limit scan to end of block */ + scanptr[idxout].Se = cinfo->lim_Se; + idxout++; + } + + cinfo->num_scans = idxout; +} + +#endif /* C_MULTISCAN_FILES_SUPPORTED */ + + +LOCAL(void) +select_scan_parameters (j_compress_ptr cinfo) +/* Set up the scan parameters for the current scan */ +{ + int ci; + +#ifdef C_MULTISCAN_FILES_SUPPORTED + if (cinfo->scan_info != NULL) { + /* Prepare for current scan --- the script is already validated */ + my_master_ptr master = (my_master_ptr) cinfo->master; + const jpeg_scan_info * scanptr = cinfo->scan_info + master->scan_number; + + cinfo->comps_in_scan = scanptr->comps_in_scan; + for (ci = 0; ci < scanptr->comps_in_scan; ci++) { + cinfo->cur_comp_info[ci] = + &cinfo->comp_info[scanptr->component_index[ci]]; + } + if (cinfo->progressive_mode) { + cinfo->Ss = scanptr->Ss; + cinfo->Se = scanptr->Se; + cinfo->Ah = scanptr->Ah; + cinfo->Al = scanptr->Al; + return; + } + } + else +#endif + { + /* Prepare for single sequential-JPEG scan containing all components */ + if (cinfo->num_components > MAX_COMPS_IN_SCAN) + ERREXIT2(cinfo, JERR_COMPONENT_COUNT, cinfo->num_components, + MAX_COMPS_IN_SCAN); + cinfo->comps_in_scan = cinfo->num_components; + for (ci = 0; ci < cinfo->num_components; ci++) { + cinfo->cur_comp_info[ci] = &cinfo->comp_info[ci]; + } + } + cinfo->Ss = 0; + cinfo->Se = cinfo->block_size * cinfo->block_size - 1; + cinfo->Ah = 0; + cinfo->Al = 0; +} + + +LOCAL(void) +per_scan_setup (j_compress_ptr cinfo) +/* Do computations that are needed before processing a JPEG scan */ +/* cinfo->comps_in_scan and cinfo->cur_comp_info[] are already set */ +{ + int ci, mcublks, tmp; + jpeg_component_info *compptr; + + if (cinfo->comps_in_scan == 1) { + + /* Noninterleaved (single-component) scan */ + compptr = cinfo->cur_comp_info[0]; + + /* Overall image size in MCUs */ + cinfo->MCUs_per_row = compptr->width_in_blocks; + cinfo->MCU_rows_in_scan = compptr->height_in_blocks; + + /* For noninterleaved scan, always one block per MCU */ + compptr->MCU_width = 1; + compptr->MCU_height = 1; + compptr->MCU_blocks = 1; + compptr->MCU_sample_width = compptr->DCT_h_scaled_size; + compptr->last_col_width = 1; + /* For noninterleaved scans, it is convenient to define last_row_height + * as the number of block rows present in the last iMCU row. + */ + tmp = (int) (compptr->height_in_blocks % compptr->v_samp_factor); + if (tmp == 0) tmp = compptr->v_samp_factor; + compptr->last_row_height = tmp; + + /* Prepare array describing MCU composition */ + cinfo->blocks_in_MCU = 1; + cinfo->MCU_membership[0] = 0; + + } else { + + /* Interleaved (multi-component) scan */ + if (cinfo->comps_in_scan <= 0 || cinfo->comps_in_scan > MAX_COMPS_IN_SCAN) + ERREXIT2(cinfo, JERR_COMPONENT_COUNT, cinfo->comps_in_scan, + MAX_COMPS_IN_SCAN); + + /* Overall image size in MCUs */ + cinfo->MCUs_per_row = (JDIMENSION) + jdiv_round_up((long) cinfo->jpeg_width, + (long) (cinfo->max_h_samp_factor * cinfo->block_size)); + cinfo->MCU_rows_in_scan = (JDIMENSION) + jdiv_round_up((long) cinfo->jpeg_height, + (long) (cinfo->max_v_samp_factor * cinfo->block_size)); + + cinfo->blocks_in_MCU = 0; + + for (ci = 0; ci < cinfo->comps_in_scan; ci++) { + compptr = cinfo->cur_comp_info[ci]; + /* Sampling factors give # of blocks of component in each MCU */ + compptr->MCU_width = compptr->h_samp_factor; + compptr->MCU_height = compptr->v_samp_factor; + compptr->MCU_blocks = compptr->MCU_width * compptr->MCU_height; + compptr->MCU_sample_width = compptr->MCU_width * compptr->DCT_h_scaled_size; + /* Figure number of non-dummy blocks in last MCU column & row */ + tmp = (int) (compptr->width_in_blocks % compptr->MCU_width); + if (tmp == 0) tmp = compptr->MCU_width; + compptr->last_col_width = tmp; + tmp = (int) (compptr->height_in_blocks % compptr->MCU_height); + if (tmp == 0) tmp = compptr->MCU_height; + compptr->last_row_height = tmp; + /* Prepare array describing MCU composition */ + mcublks = compptr->MCU_blocks; + if (cinfo->blocks_in_MCU + mcublks > C_MAX_BLOCKS_IN_MCU) + ERREXIT(cinfo, JERR_BAD_MCU_SIZE); + while (mcublks-- > 0) { + cinfo->MCU_membership[cinfo->blocks_in_MCU++] = ci; + } + } + + } + + /* Convert restart specified in rows to actual MCU count. */ + /* Note that count must fit in 16 bits, so we provide limiting. */ + if (cinfo->restart_in_rows > 0) { + long nominal = (long) cinfo->restart_in_rows * (long) cinfo->MCUs_per_row; + cinfo->restart_interval = (unsigned int) MIN(nominal, 65535L); + } +} + + +/* + * Per-pass setup. + * This is called at the beginning of each pass. We determine which modules + * will be active during this pass and give them appropriate start_pass calls. + * We also set is_last_pass to indicate whether any more passes will be + * required. + */ + +METHODDEF(void) +prepare_for_pass (j_compress_ptr cinfo) +{ + my_master_ptr master = (my_master_ptr) cinfo->master; + + switch (master->pass_type) { + case main_pass: + /* Initial pass: will collect input data, and do either Huffman + * optimization or data output for the first scan. + */ + select_scan_parameters(cinfo); + per_scan_setup(cinfo); + if (! cinfo->raw_data_in) { + (*cinfo->cconvert->start_pass) (cinfo); + (*cinfo->downsample->start_pass) (cinfo); + (*cinfo->prep->start_pass) (cinfo, JBUF_PASS_THRU); + } + (*cinfo->fdct->start_pass) (cinfo); + (*cinfo->entropy->start_pass) (cinfo, cinfo->optimize_coding); + (*cinfo->coef->start_pass) (cinfo, + (master->total_passes > 1 ? + JBUF_SAVE_AND_PASS : JBUF_PASS_THRU)); + (*cinfo->main->start_pass) (cinfo, JBUF_PASS_THRU); + if (cinfo->optimize_coding) { + /* No immediate data output; postpone writing frame/scan headers */ + master->pub.call_pass_startup = FALSE; + } else { + /* Will write frame/scan headers at first jpeg_write_scanlines call */ + master->pub.call_pass_startup = TRUE; + } + break; +#ifdef ENTROPY_OPT_SUPPORTED + case huff_opt_pass: + /* Do Huffman optimization for a scan after the first one. */ + select_scan_parameters(cinfo); + per_scan_setup(cinfo); + if (cinfo->Ss != 0 || cinfo->Ah == 0) { + (*cinfo->entropy->start_pass) (cinfo, TRUE); + (*cinfo->coef->start_pass) (cinfo, JBUF_CRANK_DEST); + master->pub.call_pass_startup = FALSE; + break; + } + /* Special case: Huffman DC refinement scans need no Huffman table + * and therefore we can skip the optimization pass for them. + */ + master->pass_type = output_pass; + master->pass_number++; + /*FALLTHROUGH*/ +#endif + case output_pass: + /* Do a data-output pass. */ + /* We need not repeat per-scan setup if prior optimization pass did it. */ + if (! cinfo->optimize_coding) { + select_scan_parameters(cinfo); + per_scan_setup(cinfo); + } + (*cinfo->entropy->start_pass) (cinfo, FALSE); + (*cinfo->coef->start_pass) (cinfo, JBUF_CRANK_DEST); + /* We emit frame/scan headers now */ + if (master->scan_number == 0) + (*cinfo->marker->write_frame_header) (cinfo); + (*cinfo->marker->write_scan_header) (cinfo); + master->pub.call_pass_startup = FALSE; + break; + default: + ERREXIT(cinfo, JERR_NOT_COMPILED); + } + + master->pub.is_last_pass = (master->pass_number == master->total_passes-1); + + /* Set up progress monitor's pass info if present */ + if (cinfo->progress != NULL) { + cinfo->progress->completed_passes = master->pass_number; + cinfo->progress->total_passes = master->total_passes; + } +} + + +/* + * Special start-of-pass hook. + * This is called by jpeg_write_scanlines if call_pass_startup is TRUE. + * In single-pass processing, we need this hook because we don't want to + * write frame/scan headers during jpeg_start_compress; we want to let the + * application write COM markers etc. between jpeg_start_compress and the + * jpeg_write_scanlines loop. + * In multi-pass processing, this routine is not used. + */ + +METHODDEF(void) +pass_startup (j_compress_ptr cinfo) +{ + cinfo->master->call_pass_startup = FALSE; /* reset flag so call only once */ + + (*cinfo->marker->write_frame_header) (cinfo); + (*cinfo->marker->write_scan_header) (cinfo); +} + + +/* + * Finish up at end of pass. + */ + +METHODDEF(void) +finish_pass_master (j_compress_ptr cinfo) +{ + my_master_ptr master = (my_master_ptr) cinfo->master; + + /* The entropy coder always needs an end-of-pass call, + * either to analyze statistics or to flush its output buffer. + */ + (*cinfo->entropy->finish_pass) (cinfo); + + /* Update state for next pass */ + switch (master->pass_type) { + case main_pass: + /* next pass is either output of scan 0 (after optimization) + * or output of scan 1 (if no optimization). + */ + master->pass_type = output_pass; + if (! cinfo->optimize_coding) + master->scan_number++; + break; + case huff_opt_pass: + /* next pass is always output of current scan */ + master->pass_type = output_pass; + break; + case output_pass: + /* next pass is either optimization or output of next scan */ + if (cinfo->optimize_coding) + master->pass_type = huff_opt_pass; + master->scan_number++; + break; + } + + master->pass_number++; +} + + +/* + * Initialize master compression control. + */ + +GLOBAL(void) +jinit_c_master_control (j_compress_ptr cinfo, boolean transcode_only) +{ + my_master_ptr master; + + master = (my_master_ptr) + (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, + SIZEOF(my_comp_master)); + cinfo->master = (struct jpeg_comp_master *) master; + master->pub.prepare_for_pass = prepare_for_pass; + master->pub.pass_startup = pass_startup; + master->pub.finish_pass = finish_pass_master; + master->pub.is_last_pass = FALSE; + + /* Validate parameters, determine derived values */ + initial_setup(cinfo, transcode_only); + + if (cinfo->scan_info != NULL) { +#ifdef C_MULTISCAN_FILES_SUPPORTED + validate_script(cinfo); + if (cinfo->block_size < DCTSIZE) + reduce_script(cinfo); +#else + ERREXIT(cinfo, JERR_NOT_COMPILED); +#endif + } else { + cinfo->progressive_mode = FALSE; + cinfo->num_scans = 1; + } + + if ((cinfo->progressive_mode || cinfo->block_size < DCTSIZE) && + !cinfo->arith_code) /* TEMPORARY HACK ??? */ + /* assume default tables no good for progressive or downscale mode */ + cinfo->optimize_coding = TRUE; + + /* Initialize my private state */ + if (transcode_only) { + /* no main pass in transcoding */ + if (cinfo->optimize_coding) + master->pass_type = huff_opt_pass; + else + master->pass_type = output_pass; + } else { + /* for normal compression, first pass is always this type: */ + master->pass_type = main_pass; + } + master->scan_number = 0; + master->pass_number = 0; + if (cinfo->optimize_coding) + master->total_passes = cinfo->num_scans * 2; + else + master->total_passes = cinfo->num_scans; +} diff --git a/jpeg/jcomapi.c b/jpeg/jcomapi.c new file mode 100644 index 0000000..9b1fa75 --- /dev/null +++ b/jpeg/jcomapi.c @@ -0,0 +1,106 @@ +/* + * jcomapi.c + * + * Copyright (C) 1994-1997, Thomas G. Lane. + * This file is part of the Independent JPEG Group's software. + * For conditions of distribution and use, see the accompanying README file. + * + * This file contains application interface routines that are used for both + * compression and decompression. + */ + +#define JPEG_INTERNALS +#include "jinclude.h" +#include "jpeglib.h" + + +/* + * Abort processing of a JPEG compression or decompression operation, + * but don't destroy the object itself. + * + * For this, we merely clean up all the nonpermanent memory pools. + * Note that temp files (virtual arrays) are not allowed to belong to + * the permanent pool, so we will be able to close all temp files here. + * Closing a data source or destination, if necessary, is the application's + * responsibility. + */ + +GLOBAL(void) +jpeg_abort (j_common_ptr cinfo) +{ + int pool; + + /* Do nothing if called on a not-initialized or destroyed JPEG object. */ + if (cinfo->mem == NULL) + return; + + /* Releasing pools in reverse order might help avoid fragmentation + * with some (brain-damaged) malloc libraries. + */ + for (pool = JPOOL_NUMPOOLS-1; pool > JPOOL_PERMANENT; pool--) { + (*cinfo->mem->free_pool) (cinfo, pool); + } + + /* Reset overall state for possible reuse of object */ + if (cinfo->is_decompressor) { + cinfo->global_state = DSTATE_START; + /* Try to keep application from accessing now-deleted marker list. + * A bit kludgy to do it here, but this is the most central place. + */ + ((j_decompress_ptr) cinfo)->marker_list = NULL; + } else { + cinfo->global_state = CSTATE_START; + } +} + + +/* + * Destruction of a JPEG object. + * + * Everything gets deallocated except the master jpeg_compress_struct itself + * and the error manager struct. Both of these are supplied by the application + * and must be freed, if necessary, by the application. (Often they are on + * the stack and so don't need to be freed anyway.) + * Closing a data source or destination, if necessary, is the application's + * responsibility. + */ + +GLOBAL(void) +jpeg_destroy (j_common_ptr cinfo) +{ + /* We need only tell the memory manager to release everything. */ + /* NB: mem pointer is NULL if memory mgr failed to initialize. */ + if (cinfo->mem != NULL) + (*cinfo->mem->self_destruct) (cinfo); + cinfo->mem = NULL; /* be safe if jpeg_destroy is called twice */ + cinfo->global_state = 0; /* mark it destroyed */ +} + + +/* + * Convenience routines for allocating quantization and Huffman tables. + * (Would jutils.c be a more reasonable place to put these?) + */ + +GLOBAL(JQUANT_TBL *) +jpeg_alloc_quant_table (j_common_ptr cinfo) +{ + JQUANT_TBL *tbl; + + tbl = (JQUANT_TBL *) + (*cinfo->mem->alloc_small) (cinfo, JPOOL_PERMANENT, SIZEOF(JQUANT_TBL)); + tbl->sent_table = FALSE; /* make sure this is false in any new table */ + return tbl; +} + + +GLOBAL(JHUFF_TBL *) +jpeg_alloc_huff_table (j_common_ptr cinfo) +{ + JHUFF_TBL *tbl; + + tbl = (JHUFF_TBL *) + (*cinfo->mem->alloc_small) (cinfo, JPOOL_PERMANENT, SIZEOF(JHUFF_TBL)); + tbl->sent_table = FALSE; /* make sure this is false in any new table */ + return tbl; +} diff --git a/jpeg/jconfig.bcc b/jpeg/jconfig.bcc new file mode 100644 index 0000000..e4da3d7 --- /dev/null +++ b/jpeg/jconfig.bcc @@ -0,0 +1,48 @@ +/* jconfig.bcc --- jconfig.h for Borland C (Turbo C) on MS-DOS or OS/2. */ +/* see jconfig.txt for explanations */ + +#define HAVE_PROTOTYPES +#define HAVE_UNSIGNED_CHAR +#define HAVE_UNSIGNED_SHORT +/* #define void char */ +/* #define const */ +#undef CHAR_IS_UNSIGNED +#define HAVE_STDDEF_H +#define HAVE_STDLIB_H +#undef NEED_BSD_STRINGS +#undef NEED_SYS_TYPES_H +#ifdef __MSDOS__ +#define NEED_FAR_POINTERS /* for small or medium memory model */ +#endif +#undef NEED_SHORT_EXTERNAL_NAMES +#undef INCOMPLETE_TYPES_BROKEN /* this assumes you have -w-stu in CFLAGS */ + +#ifdef JPEG_INTERNALS + +#undef RIGHT_SHIFT_IS_UNSIGNED + +#ifdef __MSDOS__ +#define USE_MSDOS_MEMMGR /* Define this if you use jmemdos.c */ +#define MAX_ALLOC_CHUNK 65520L /* Maximum request to malloc() */ +#define USE_FMEM /* Borland has _fmemcpy() and _fmemset() */ +#endif + +#endif /* JPEG_INTERNALS */ + +#ifdef JPEG_CJPEG_DJPEG + +#define BMP_SUPPORTED /* BMP image file format */ +#define GIF_SUPPORTED /* GIF image file format */ +#define PPM_SUPPORTED /* PBMPLUS PPM/PGM image file format */ +#undef RLE_SUPPORTED /* Utah RLE image file format */ +#define TARGA_SUPPORTED /* Targa image file format */ + +#define TWO_FILE_COMMANDLINE +#define USE_SETMODE /* Borland has setmode() */ +#ifdef __MSDOS__ +#define NEED_SIGNAL_CATCHER /* Define this if you use jmemdos.c */ +#endif +#undef DONT_USE_B_MODE +#undef PROGRESS_REPORT /* optional */ + +#endif /* JPEG_CJPEG_DJPEG */ diff --git a/jpeg/jconfig.cfg b/jpeg/jconfig.cfg new file mode 100644 index 0000000..5269eb3 --- /dev/null +++ b/jpeg/jconfig.cfg @@ -0,0 +1,53 @@ +/* jconfig.cfg --- source file edited by configure script */ +/* see jconfig.txt for explanations */ + +#undef HAVE_PROTOTYPES +#undef HAVE_UNSIGNED_CHAR +#undef HAVE_UNSIGNED_SHORT +#undef void +#undef const +#undef CHAR_IS_UNSIGNED +#undef HAVE_STDDEF_H +#undef HAVE_STDLIB_H +#undef HAVE_LOCALE_H +#undef NEED_BSD_STRINGS +#undef NEED_SYS_TYPES_H +#undef NEED_FAR_POINTERS +#undef NEED_SHORT_EXTERNAL_NAMES +/* Define this if you get warnings about undefined structures. */ +#undef INCOMPLETE_TYPES_BROKEN + +/* Define "boolean" as unsigned char, not int, on Windows systems. */ +#ifdef _WIN32 +#ifndef __RPCNDR_H__ /* don't conflict if rpcndr.h already read */ +typedef unsigned char boolean; +#endif +#define HAVE_BOOLEAN /* prevent jmorecfg.h from redefining it */ +#endif + +#ifdef JPEG_INTERNALS + +#undef RIGHT_SHIFT_IS_UNSIGNED +#undef INLINE +/* These are for configuring the JPEG memory manager. */ +#undef DEFAULT_MAX_MEM +#undef NO_MKTEMP + +#endif /* JPEG_INTERNALS */ + +#ifdef JPEG_CJPEG_DJPEG + +#undef BMP_SUPPORTED /* BMP image file format */ +#undef GIF_SUPPORTED /* GIF image file format */ +#undef PPM_SUPPORTED /* PBMPLUS PPM/PGM image file format */ +#undef RLE_SUPPORTED /* Utah RLE image file format */ +#undef TARGA_SUPPORTED /* Targa image file format */ + +#undef TWO_FILE_COMMANDLINE +#undef NEED_SIGNAL_CATCHER +#undef DONT_USE_B_MODE + +/* Define this if you want percent-done progress reports from cjpeg/djpeg. */ +#undef PROGRESS_REPORT + +#endif /* JPEG_CJPEG_DJPEG */ diff --git a/jpeg/jconfig.dj b/jpeg/jconfig.dj new file mode 100644 index 0000000..a0d4092 --- /dev/null +++ b/jpeg/jconfig.dj @@ -0,0 +1,38 @@ +/* jconfig.dj --- jconfig.h for DJGPP (Delorie's GNU C port) on MS-DOS. */ +/* see jconfig.txt for explanations */ + +#define HAVE_PROTOTYPES +#define HAVE_UNSIGNED_CHAR +#define HAVE_UNSIGNED_SHORT +/* #define void char */ +/* #define const */ +#undef CHAR_IS_UNSIGNED +#define HAVE_STDDEF_H +#define HAVE_STDLIB_H +#undef NEED_BSD_STRINGS +#undef NEED_SYS_TYPES_H +#undef NEED_FAR_POINTERS /* DJGPP uses flat 32-bit addressing */ +#undef NEED_SHORT_EXTERNAL_NAMES +#undef INCOMPLETE_TYPES_BROKEN + +#ifdef JPEG_INTERNALS + +#undef RIGHT_SHIFT_IS_UNSIGNED + +#endif /* JPEG_INTERNALS */ + +#ifdef JPEG_CJPEG_DJPEG + +#define BMP_SUPPORTED /* BMP image file format */ +#define GIF_SUPPORTED /* GIF image file format */ +#define PPM_SUPPORTED /* PBMPLUS PPM/PGM image file format */ +#undef RLE_SUPPORTED /* Utah RLE image file format */ +#define TARGA_SUPPORTED /* Targa image file format */ + +#undef TWO_FILE_COMMANDLINE /* optional */ +#define USE_SETMODE /* Needed to make one-file style work in DJGPP */ +#undef NEED_SIGNAL_CATCHER /* Define this if you use jmemname.c */ +#undef DONT_USE_B_MODE +#undef PROGRESS_REPORT /* optional */ + +#endif /* JPEG_CJPEG_DJPEG */ diff --git a/jpeg/jconfig.mac b/jpeg/jconfig.mac new file mode 100644 index 0000000..70ed66c --- /dev/null +++ b/jpeg/jconfig.mac @@ -0,0 +1,43 @@ +/* jconfig.mac --- jconfig.h for CodeWarrior on Apple Macintosh */ +/* see jconfig.txt for explanations */ + +#define HAVE_PROTOTYPES +#define HAVE_UNSIGNED_CHAR +#define HAVE_UNSIGNED_SHORT +/* #define void char */ +/* #define const */ +#undef CHAR_IS_UNSIGNED +#define HAVE_STDDEF_H +#define HAVE_STDLIB_H +#undef NEED_BSD_STRINGS +#undef NEED_SYS_TYPES_H +#undef NEED_FAR_POINTERS +#undef NEED_SHORT_EXTERNAL_NAMES +#undef INCOMPLETE_TYPES_BROKEN + +#ifdef JPEG_INTERNALS + +#undef RIGHT_SHIFT_IS_UNSIGNED + +#define USE_MAC_MEMMGR /* Define this if you use jmemmac.c */ + +#define ALIGN_TYPE long /* Needed for 680x0 Macs */ + +#endif /* JPEG_INTERNALS */ + +#ifdef JPEG_CJPEG_DJPEG + +#define BMP_SUPPORTED /* BMP image file format */ +#define GIF_SUPPORTED /* GIF image file format */ +#define PPM_SUPPORTED /* PBMPLUS PPM/PGM image file format */ +#undef RLE_SUPPORTED /* Utah RLE image file format */ +#define TARGA_SUPPORTED /* Targa image file format */ + +#define USE_CCOMMAND /* Command line reader for Macintosh */ +#define TWO_FILE_COMMANDLINE /* Binary I/O thru stdin/stdout doesn't work */ + +#undef NEED_SIGNAL_CATCHER +#undef DONT_USE_B_MODE +#undef PROGRESS_REPORT /* optional */ + +#endif /* JPEG_CJPEG_DJPEG */ diff --git a/jpeg/jconfig.manx b/jpeg/jconfig.manx new file mode 100644 index 0000000..cd529d7 --- /dev/null +++ b/jpeg/jconfig.manx @@ -0,0 +1,43 @@ +/* jconfig.manx --- jconfig.h for Amiga systems using Manx Aztec C ver 5.x. */ +/* see jconfig.txt for explanations */ + +#define HAVE_PROTOTYPES +#define HAVE_UNSIGNED_CHAR +#define HAVE_UNSIGNED_SHORT +/* #define void char */ +/* #define const */ +#undef CHAR_IS_UNSIGNED +#define HAVE_STDDEF_H +#define HAVE_STDLIB_H +#undef NEED_BSD_STRINGS +#undef NEED_SYS_TYPES_H +#undef NEED_FAR_POINTERS +#undef NEED_SHORT_EXTERNAL_NAMES +#undef INCOMPLETE_TYPES_BROKEN + +#ifdef JPEG_INTERNALS + +#undef RIGHT_SHIFT_IS_UNSIGNED + +#define TEMP_DIRECTORY "JPEGTMP:" /* recommended setting for Amiga */ + +#define SHORTxSHORT_32 /* produces better DCT code with Aztec C */ + +#endif /* JPEG_INTERNALS */ + +#ifdef JPEG_CJPEG_DJPEG + +#define BMP_SUPPORTED /* BMP image file format */ +#define GIF_SUPPORTED /* GIF image file format */ +#define PPM_SUPPORTED /* PBMPLUS PPM/PGM image file format */ +#undef RLE_SUPPORTED /* Utah RLE image file format */ +#define TARGA_SUPPORTED /* Targa image file format */ + +#define TWO_FILE_COMMANDLINE +#define NEED_SIGNAL_CATCHER +#undef DONT_USE_B_MODE +#undef PROGRESS_REPORT /* optional */ + +#define signal_catcher _abort /* hack for Aztec C naming requirements */ + +#endif /* JPEG_CJPEG_DJPEG */ diff --git a/jpeg/jconfig.mc6 b/jpeg/jconfig.mc6 new file mode 100644 index 0000000..6b05e81 --- /dev/null +++ b/jpeg/jconfig.mc6 @@ -0,0 +1,52 @@ +/* jconfig.mc6 --- jconfig.h for Microsoft C on MS-DOS, version 6.00A & up. */ +/* see jconfig.txt for explanations */ + +#define HAVE_PROTOTYPES +#define HAVE_UNSIGNED_CHAR +#define HAVE_UNSIGNED_SHORT +/* #define void char */ +/* #define const */ +#undef CHAR_IS_UNSIGNED +#define HAVE_STDDEF_H +#define HAVE_STDLIB_H +#undef NEED_BSD_STRINGS +#undef NEED_SYS_TYPES_H +#define NEED_FAR_POINTERS /* for small or medium memory model */ +#undef NEED_SHORT_EXTERNAL_NAMES +#undef INCOMPLETE_TYPES_BROKEN + +#ifdef JPEG_INTERNALS + +#undef RIGHT_SHIFT_IS_UNSIGNED + +#define USE_MSDOS_MEMMGR /* Define this if you use jmemdos.c */ + +#define MAX_ALLOC_CHUNK 65520L /* Maximum request to malloc() */ + +#define USE_FMEM /* Microsoft has _fmemcpy() and _fmemset() */ + +#define NEED_FHEAPMIN /* far heap management routines are broken */ + +#define SHORTxLCONST_32 /* enable compiler-specific DCT optimization */ +/* Note: the above define is known to improve the code with Microsoft C 6.00A. + * I do not know whether it is good for later compiler versions. + * Please report any info on this point to jpeg-info@jpegclub.org. + */ + +#endif /* JPEG_INTERNALS */ + +#ifdef JPEG_CJPEG_DJPEG + +#define BMP_SUPPORTED /* BMP image file format */ +#define GIF_SUPPORTED /* GIF image file format */ +#define PPM_SUPPORTED /* PBMPLUS PPM/PGM image file format */ +#undef RLE_SUPPORTED /* Utah RLE image file format */ +#define TARGA_SUPPORTED /* Targa image file format */ + +#define TWO_FILE_COMMANDLINE +#define USE_SETMODE /* Microsoft has setmode() */ +#define NEED_SIGNAL_CATCHER /* Define this if you use jmemdos.c */ +#undef DONT_USE_B_MODE +#undef PROGRESS_REPORT /* optional */ + +#endif /* JPEG_CJPEG_DJPEG */ diff --git a/jpeg/jconfig.sas b/jpeg/jconfig.sas new file mode 100644 index 0000000..b8a1819 --- /dev/null +++ b/jpeg/jconfig.sas @@ -0,0 +1,43 @@ +/* jconfig.sas --- jconfig.h for Amiga systems using SAS C 6.0 and up. */ +/* see jconfig.txt for explanations */ + +#define HAVE_PROTOTYPES +#define HAVE_UNSIGNED_CHAR +#define HAVE_UNSIGNED_SHORT +/* #define void char */ +/* #define const */ +#undef CHAR_IS_UNSIGNED +#define HAVE_STDDEF_H +#define HAVE_STDLIB_H +#undef NEED_BSD_STRINGS +#undef NEED_SYS_TYPES_H +#undef NEED_FAR_POINTERS +#undef NEED_SHORT_EXTERNAL_NAMES +#undef INCOMPLETE_TYPES_BROKEN + +#ifdef JPEG_INTERNALS + +#undef RIGHT_SHIFT_IS_UNSIGNED + +#define TEMP_DIRECTORY "JPEGTMP:" /* recommended setting for Amiga */ + +#define NO_MKTEMP /* SAS C doesn't have mktemp() */ + +#define SHORTxSHORT_32 /* produces better DCT code with SAS C */ + +#endif /* JPEG_INTERNALS */ + +#ifdef JPEG_CJPEG_DJPEG + +#define BMP_SUPPORTED /* BMP image file format */ +#define GIF_SUPPORTED /* GIF image file format */ +#define PPM_SUPPORTED /* PBMPLUS PPM/PGM image file format */ +#undef RLE_SUPPORTED /* Utah RLE image file format */ +#define TARGA_SUPPORTED /* Targa image file format */ + +#define TWO_FILE_COMMANDLINE +#define NEED_SIGNAL_CATCHER +#undef DONT_USE_B_MODE +#undef PROGRESS_REPORT /* optional */ + +#endif /* JPEG_CJPEG_DJPEG */ diff --git a/jpeg/jconfig.st b/jpeg/jconfig.st new file mode 100644 index 0000000..5afa0b6 --- /dev/null +++ b/jpeg/jconfig.st @@ -0,0 +1,42 @@ +/* jconfig.st --- jconfig.h for Atari ST/STE/TT using Pure C or Turbo C. */ +/* see jconfig.txt for explanations */ + +#define HAVE_PROTOTYPES +#define HAVE_UNSIGNED_CHAR +#define HAVE_UNSIGNED_SHORT +/* #define void char */ +/* #define const */ +#undef CHAR_IS_UNSIGNED +#define HAVE_STDDEF_H +#define HAVE_STDLIB_H +#undef NEED_BSD_STRINGS +#undef NEED_SYS_TYPES_H +#undef NEED_FAR_POINTERS +#undef NEED_SHORT_EXTERNAL_NAMES +#define INCOMPLETE_TYPES_BROKEN /* suppress undefined-structure warnings */ + +#ifdef JPEG_INTERNALS + +#undef RIGHT_SHIFT_IS_UNSIGNED + +#define ALIGN_TYPE long /* apparently double is a weird size? */ + +#endif /* JPEG_INTERNALS */ + +#ifdef JPEG_CJPEG_DJPEG + +#define BMP_SUPPORTED /* BMP image file format */ +#define GIF_SUPPORTED /* GIF image file format */ +#define PPM_SUPPORTED /* PBMPLUS PPM/PGM image file format */ +#undef RLE_SUPPORTED /* Utah RLE image file format */ +#define TARGA_SUPPORTED /* Targa image file format */ + +#define TWO_FILE_COMMANDLINE /* optional -- undef if you like Unix style */ +/* Note: if you undef TWO_FILE_COMMANDLINE, you may need to define + * USE_SETMODE. Some Atari compilers require it, some do not. + */ +#define NEED_SIGNAL_CATCHER /* needed if you use jmemname.c */ +#undef DONT_USE_B_MODE +#undef PROGRESS_REPORT /* optional */ + +#endif /* JPEG_CJPEG_DJPEG */ diff --git a/jpeg/jconfig.txt b/jpeg/jconfig.txt new file mode 100644 index 0000000..b96d312 --- /dev/null +++ b/jpeg/jconfig.txt @@ -0,0 +1,164 @@ +/* + * jconfig.txt + * + * Copyright (C) 1991-1994, Thomas G. Lane. + * This file is part of the Independent JPEG Group's software. + * For conditions of distribution and use, see the accompanying README file. + * + * This file documents the configuration options that are required to + * customize the JPEG software for a particular system. + * + * The actual configuration options for a particular installation are stored + * in jconfig.h. On many machines, jconfig.h can be generated automatically + * or copied from one of the "canned" jconfig files that we supply. But if + * you need to generate a jconfig.h file by hand, this file tells you how. + * + * DO NOT EDIT THIS FILE --- IT WON'T ACCOMPLISH ANYTHING. + * EDIT A COPY NAMED JCONFIG.H. + */ + + +/* + * These symbols indicate the properties of your machine or compiler. + * #define the symbol if yes, #undef it if no. + */ + +/* Does your compiler support function prototypes? + * (If not, you also need to use ansi2knr, see install.txt) + */ +#define HAVE_PROTOTYPES + +/* Does your compiler support the declaration "unsigned char" ? + * How about "unsigned short" ? + */ +#define HAVE_UNSIGNED_CHAR +#define HAVE_UNSIGNED_SHORT + +/* Define "void" as "char" if your compiler doesn't know about type void. + * NOTE: be sure to define void such that "void *" represents the most general + * pointer type, e.g., that returned by malloc(). + */ +/* #define void char */ + +/* Define "const" as empty if your compiler doesn't know the "const" keyword. + */ +/* #define const */ + +/* Define this if an ordinary "char" type is unsigned. + * If you're not sure, leaving it undefined will work at some cost in speed. + * If you defined HAVE_UNSIGNED_CHAR then the speed difference is minimal. + */ +#undef CHAR_IS_UNSIGNED + +/* Define this if your system has an ANSI-conforming file. + */ +#define HAVE_STDDEF_H + +/* Define this if your system has an ANSI-conforming file. + */ +#define HAVE_STDLIB_H + +/* Define this if your system does not have an ANSI/SysV , + * but does have a BSD-style . + */ +#undef NEED_BSD_STRINGS + +/* Define this if your system does not provide typedef size_t in any of the + * ANSI-standard places (stddef.h, stdlib.h, or stdio.h), but places it in + * instead. + */ +#undef NEED_SYS_TYPES_H + +/* For 80x86 machines, you need to define NEED_FAR_POINTERS, + * unless you are using a large-data memory model or 80386 flat-memory mode. + * On less brain-damaged CPUs this symbol must not be defined. + * (Defining this symbol causes large data structures to be referenced through + * "far" pointers and to be allocated with a special version of malloc.) + */ +#undef NEED_FAR_POINTERS + +/* Define this if your linker needs global names to be unique in less + * than the first 15 characters. + */ +#undef NEED_SHORT_EXTERNAL_NAMES + +/* Although a real ANSI C compiler can deal perfectly well with pointers to + * unspecified structures (see "incomplete types" in the spec), a few pre-ANSI + * and pseudo-ANSI compilers get confused. To keep one of these bozos happy, + * define INCOMPLETE_TYPES_BROKEN. This is not recommended unless you + * actually get "missing structure definition" warnings or errors while + * compiling the JPEG code. + */ +#undef INCOMPLETE_TYPES_BROKEN + +/* Define "boolean" as unsigned char, not int, on Windows systems. + */ +#ifdef _WIN32 +#ifndef __RPCNDR_H__ /* don't conflict if rpcndr.h already read */ +typedef unsigned char boolean; +#endif +#define HAVE_BOOLEAN /* prevent jmorecfg.h from redefining it */ +#endif + + +/* + * The following options affect code selection within the JPEG library, + * but they don't need to be visible to applications using the library. + * To minimize application namespace pollution, the symbols won't be + * defined unless JPEG_INTERNALS has been defined. + */ + +#ifdef JPEG_INTERNALS + +/* Define this if your compiler implements ">>" on signed values as a logical + * (unsigned) shift; leave it undefined if ">>" is a signed (arithmetic) shift, + * which is the normal and rational definition. + */ +#undef RIGHT_SHIFT_IS_UNSIGNED + + +#endif /* JPEG_INTERNALS */ + + +/* + * The remaining options do not affect the JPEG library proper, + * but only the sample applications cjpeg/djpeg (see cjpeg.c, djpeg.c). + * Other applications can ignore these. + */ + +#ifdef JPEG_CJPEG_DJPEG + +/* These defines indicate which image (non-JPEG) file formats are allowed. */ + +#define BMP_SUPPORTED /* BMP image file format */ +#define GIF_SUPPORTED /* GIF image file format */ +#define PPM_SUPPORTED /* PBMPLUS PPM/PGM image file format */ +#undef RLE_SUPPORTED /* Utah RLE image file format */ +#define TARGA_SUPPORTED /* Targa image file format */ + +/* Define this if you want to name both input and output files on the command + * line, rather than using stdout and optionally stdin. You MUST do this if + * your system can't cope with binary I/O to stdin/stdout. See comments at + * head of cjpeg.c or djpeg.c. + */ +#undef TWO_FILE_COMMANDLINE + +/* Define this if your system needs explicit cleanup of temporary files. + * This is crucial under MS-DOS, where the temporary "files" may be areas + * of extended memory; on most other systems it's not as important. + */ +#undef NEED_SIGNAL_CATCHER + +/* By default, we open image files with fopen(...,"rb") or fopen(...,"wb"). + * This is necessary on systems that distinguish text files from binary files, + * and is harmless on most systems that don't. If you have one of the rare + * systems that complains about the "b" spec, define this symbol. + */ +#undef DONT_USE_B_MODE + +/* Define this if you want percent-done progress reports from cjpeg/djpeg. + */ +#undef PROGRESS_REPORT + + +#endif /* JPEG_CJPEG_DJPEG */ diff --git a/jpeg/jconfig.vc b/jpeg/jconfig.vc new file mode 100644 index 0000000..55d2b00 --- /dev/null +++ b/jpeg/jconfig.vc @@ -0,0 +1,45 @@ +/* jconfig.vc --- jconfig.h for Microsoft Visual C++ on Windows 95 or NT. */ +/* see jconfig.txt for explanations */ + +#define HAVE_PROTOTYPES +#define HAVE_UNSIGNED_CHAR +#define HAVE_UNSIGNED_SHORT +/* #define void char */ +/* #define const */ +#undef CHAR_IS_UNSIGNED +#define HAVE_STDDEF_H +#define HAVE_STDLIB_H +#undef NEED_BSD_STRINGS +#undef NEED_SYS_TYPES_H +#undef NEED_FAR_POINTERS /* we presume a 32-bit flat memory model */ +#undef NEED_SHORT_EXTERNAL_NAMES +#undef INCOMPLETE_TYPES_BROKEN + +/* Define "boolean" as unsigned char, not int, per Windows custom */ +#ifndef __RPCNDR_H__ /* don't conflict if rpcndr.h already read */ +typedef unsigned char boolean; +#endif +#define HAVE_BOOLEAN /* prevent jmorecfg.h from redefining it */ + + +#ifdef JPEG_INTERNALS + +#undef RIGHT_SHIFT_IS_UNSIGNED + +#endif /* JPEG_INTERNALS */ + +#ifdef JPEG_CJPEG_DJPEG + +#undef BMP_SUPPORTED /* BMP image file format */ +#undef GIF_SUPPORTED /* GIF image file format */ +#undef PPM_SUPPORTED /* PBMPLUS PPM/PGM image file format */ +#undef RLE_SUPPORTED /* Utah RLE image file format */ +#undef TARGA_SUPPORTED /* Targa image file format */ + +#define TWO_FILE_COMMANDLINE /* optional */ +#define USE_SETMODE /* Microsoft has setmode() */ +#undef NEED_SIGNAL_CATCHER +#undef DONT_USE_B_MODE +#undef PROGRESS_REPORT /* optional */ + +#endif /* JPEG_CJPEG_DJPEG */ diff --git a/jpeg/jconfig.vms b/jpeg/jconfig.vms new file mode 100644 index 0000000..8337b0b --- /dev/null +++ b/jpeg/jconfig.vms @@ -0,0 +1,37 @@ +/* jconfig.vms --- jconfig.h for use on Digital VMS. */ +/* see jconfig.txt for explanations */ + +#define HAVE_PROTOTYPES +#define HAVE_UNSIGNED_CHAR +#define HAVE_UNSIGNED_SHORT +/* #define void char */ +/* #define const */ +#undef CHAR_IS_UNSIGNED +#define HAVE_STDDEF_H +#define HAVE_STDLIB_H +#undef NEED_BSD_STRINGS +#undef NEED_SYS_TYPES_H +#undef NEED_FAR_POINTERS +#undef NEED_SHORT_EXTERNAL_NAMES +#undef INCOMPLETE_TYPES_BROKEN + +#ifdef JPEG_INTERNALS + +#undef RIGHT_SHIFT_IS_UNSIGNED + +#endif /* JPEG_INTERNALS */ + +#ifdef JPEG_CJPEG_DJPEG + +#define BMP_SUPPORTED /* BMP image file format */ +#define GIF_SUPPORTED /* GIF image file format */ +#define PPM_SUPPORTED /* PBMPLUS PPM/PGM image file format */ +#undef RLE_SUPPORTED /* Utah RLE image file format */ +#define TARGA_SUPPORTED /* Targa image file format */ + +#define TWO_FILE_COMMANDLINE /* Needed on VMS */ +#undef NEED_SIGNAL_CATCHER +#undef DONT_USE_B_MODE +#undef PROGRESS_REPORT /* optional */ + +#endif /* JPEG_CJPEG_DJPEG */ diff --git a/jpeg/jconfig.wat b/jpeg/jconfig.wat new file mode 100644 index 0000000..190cc75 --- /dev/null +++ b/jpeg/jconfig.wat @@ -0,0 +1,38 @@ +/* jconfig.wat --- jconfig.h for Watcom C/C++ on MS-DOS or OS/2. */ +/* see jconfig.txt for explanations */ + +#define HAVE_PROTOTYPES +#define HAVE_UNSIGNED_CHAR +#define HAVE_UNSIGNED_SHORT +/* #define void char */ +/* #define const */ +#define CHAR_IS_UNSIGNED +#define HAVE_STDDEF_H +#define HAVE_STDLIB_H +#undef NEED_BSD_STRINGS +#undef NEED_SYS_TYPES_H +#undef NEED_FAR_POINTERS /* Watcom uses flat 32-bit addressing */ +#undef NEED_SHORT_EXTERNAL_NAMES +#undef INCOMPLETE_TYPES_BROKEN + +#ifdef JPEG_INTERNALS + +#undef RIGHT_SHIFT_IS_UNSIGNED + +#endif /* JPEG_INTERNALS */ + +#ifdef JPEG_CJPEG_DJPEG + +#define BMP_SUPPORTED /* BMP image file format */ +#define GIF_SUPPORTED /* GIF image file format */ +#define PPM_SUPPORTED /* PBMPLUS PPM/PGM image file format */ +#undef RLE_SUPPORTED /* Utah RLE image file format */ +#define TARGA_SUPPORTED /* Targa image file format */ + +#undef TWO_FILE_COMMANDLINE /* optional */ +#define USE_SETMODE /* Needed to make one-file style work in Watcom */ +#undef NEED_SIGNAL_CATCHER /* Define this if you use jmemname.c */ +#undef DONT_USE_B_MODE +#undef PROGRESS_REPORT /* optional */ + +#endif /* JPEG_CJPEG_DJPEG */ diff --git a/jpeg/jcparam.c b/jpeg/jcparam.c new file mode 100644 index 0000000..c5e85dd --- /dev/null +++ b/jpeg/jcparam.c @@ -0,0 +1,632 @@ +/* + * jcparam.c + * + * Copyright (C) 1991-1998, Thomas G. Lane. + * Modified 2003-2008 by Guido Vollbeding. + * This file is part of the Independent JPEG Group's software. + * For conditions of distribution and use, see the accompanying README file. + * + * This file contains optional default-setting code for the JPEG compressor. + * Applications do not have to use this file, but those that don't use it + * must know a lot more about the innards of the JPEG code. + */ + +#define JPEG_INTERNALS +#include "jinclude.h" +#include "jpeglib.h" + + +/* + * Quantization table setup routines + */ + +GLOBAL(void) +jpeg_add_quant_table (j_compress_ptr cinfo, int which_tbl, + const unsigned int *basic_table, + int scale_factor, boolean force_baseline) +/* Define a quantization table equal to the basic_table times + * a scale factor (given as a percentage). + * If force_baseline is TRUE, the computed quantization table entries + * are limited to 1..255 for JPEG baseline compatibility. + */ +{ + JQUANT_TBL ** qtblptr; + int i; + long temp; + + /* Safety check to ensure start_compress not called yet. */ + if (cinfo->global_state != CSTATE_START) + ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state); + + if (which_tbl < 0 || which_tbl >= NUM_QUANT_TBLS) + ERREXIT1(cinfo, JERR_DQT_INDEX, which_tbl); + + qtblptr = & cinfo->quant_tbl_ptrs[which_tbl]; + + if (*qtblptr == NULL) + *qtblptr = jpeg_alloc_quant_table((j_common_ptr) cinfo); + + for (i = 0; i < DCTSIZE2; i++) { + temp = ((long) basic_table[i] * scale_factor + 50L) / 100L; + /* limit the values to the valid range */ + if (temp <= 0L) temp = 1L; + if (temp > 32767L) temp = 32767L; /* max quantizer needed for 12 bits */ + if (force_baseline && temp > 255L) + temp = 255L; /* limit to baseline range if requested */ + (*qtblptr)->quantval[i] = (UINT16) temp; + } + + /* Initialize sent_table FALSE so table will be written to JPEG file. */ + (*qtblptr)->sent_table = FALSE; +} + + +/* These are the sample quantization tables given in JPEG spec section K.1. + * The spec says that the values given produce "good" quality, and + * when divided by 2, "very good" quality. + */ +static const unsigned int std_luminance_quant_tbl[DCTSIZE2] = { + 16, 11, 10, 16, 24, 40, 51, 61, + 12, 12, 14, 19, 26, 58, 60, 55, + 14, 13, 16, 24, 40, 57, 69, 56, + 14, 17, 22, 29, 51, 87, 80, 62, + 18, 22, 37, 56, 68, 109, 103, 77, + 24, 35, 55, 64, 81, 104, 113, 92, + 49, 64, 78, 87, 103, 121, 120, 101, + 72, 92, 95, 98, 112, 100, 103, 99 +}; +static const unsigned int std_chrominance_quant_tbl[DCTSIZE2] = { + 17, 18, 24, 47, 99, 99, 99, 99, + 18, 21, 26, 66, 99, 99, 99, 99, + 24, 26, 56, 99, 99, 99, 99, 99, + 47, 66, 99, 99, 99, 99, 99, 99, + 99, 99, 99, 99, 99, 99, 99, 99, + 99, 99, 99, 99, 99, 99, 99, 99, + 99, 99, 99, 99, 99, 99, 99, 99, + 99, 99, 99, 99, 99, 99, 99, 99 +}; + + +GLOBAL(void) +jpeg_default_qtables (j_compress_ptr cinfo, boolean force_baseline) +/* Set or change the 'quality' (quantization) setting, using default tables + * and straight percentage-scaling quality scales. + * This entry point allows different scalings for luminance and chrominance. + */ +{ + /* Set up two quantization tables using the specified scaling */ + jpeg_add_quant_table(cinfo, 0, std_luminance_quant_tbl, + cinfo->q_scale_factor[0], force_baseline); + jpeg_add_quant_table(cinfo, 1, std_chrominance_quant_tbl, + cinfo->q_scale_factor[1], force_baseline); +} + + +GLOBAL(void) +jpeg_set_linear_quality (j_compress_ptr cinfo, int scale_factor, + boolean force_baseline) +/* Set or change the 'quality' (quantization) setting, using default tables + * and a straight percentage-scaling quality scale. In most cases it's better + * to use jpeg_set_quality (below); this entry point is provided for + * applications that insist on a linear percentage scaling. + */ +{ + /* Set up two quantization tables using the specified scaling */ + jpeg_add_quant_table(cinfo, 0, std_luminance_quant_tbl, + scale_factor, force_baseline); + jpeg_add_quant_table(cinfo, 1, std_chrominance_quant_tbl, + scale_factor, force_baseline); +} + + +GLOBAL(int) +jpeg_quality_scaling (int quality) +/* Convert a user-specified quality rating to a percentage scaling factor + * for an underlying quantization table, using our recommended scaling curve. + * The input 'quality' factor should be 0 (terrible) to 100 (very good). + */ +{ + /* Safety limit on quality factor. Convert 0 to 1 to avoid zero divide. */ + if (quality <= 0) quality = 1; + if (quality > 100) quality = 100; + + /* The basic table is used as-is (scaling 100) for a quality of 50. + * Qualities 50..100 are converted to scaling percentage 200 - 2*Q; + * note that at Q=100 the scaling is 0, which will cause jpeg_add_quant_table + * to make all the table entries 1 (hence, minimum quantization loss). + * Qualities 1..50 are converted to scaling percentage 5000/Q. + */ + if (quality < 50) + quality = 5000 / quality; + else + quality = 200 - quality*2; + + return quality; +} + + +GLOBAL(void) +jpeg_set_quality (j_compress_ptr cinfo, int quality, boolean force_baseline) +/* Set or change the 'quality' (quantization) setting, using default tables. + * This is the standard quality-adjusting entry point for typical user + * interfaces; only those who want detailed control over quantization tables + * would use the preceding three routines directly. + */ +{ + /* Convert user 0-100 rating to percentage scaling */ + quality = jpeg_quality_scaling(quality); + + /* Set up standard quality tables */ + jpeg_set_linear_quality(cinfo, quality, force_baseline); +} + + +/* + * Huffman table setup routines + */ + +LOCAL(void) +add_huff_table (j_compress_ptr cinfo, + JHUFF_TBL **htblptr, const UINT8 *bits, const UINT8 *val) +/* Define a Huffman table */ +{ + int nsymbols, len; + + if (*htblptr == NULL) + *htblptr = jpeg_alloc_huff_table((j_common_ptr) cinfo); + + /* Copy the number-of-symbols-of-each-code-length counts */ + MEMCOPY((*htblptr)->bits, bits, SIZEOF((*htblptr)->bits)); + + /* Validate the counts. We do this here mainly so we can copy the right + * number of symbols from the val[] array, without risking marching off + * the end of memory. jchuff.c will do a more thorough test later. + */ + nsymbols = 0; + for (len = 1; len <= 16; len++) + nsymbols += bits[len]; + if (nsymbols < 1 || nsymbols > 256) + ERREXIT(cinfo, JERR_BAD_HUFF_TABLE); + + MEMCOPY((*htblptr)->huffval, val, nsymbols * SIZEOF(UINT8)); + + /* Initialize sent_table FALSE so table will be written to JPEG file. */ + (*htblptr)->sent_table = FALSE; +} + + +LOCAL(void) +std_huff_tables (j_compress_ptr cinfo) +/* Set up the standard Huffman tables (cf. JPEG standard section K.3) */ +/* IMPORTANT: these are only valid for 8-bit data precision! */ +{ + static const UINT8 bits_dc_luminance[17] = + { /* 0-base */ 0, 0, 1, 5, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0 }; + static const UINT8 val_dc_luminance[] = + { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11 }; + + static const UINT8 bits_dc_chrominance[17] = + { /* 0-base */ 0, 0, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0 }; + static const UINT8 val_dc_chrominance[] = + { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11 }; + + static const UINT8 bits_ac_luminance[17] = + { /* 0-base */ 0, 0, 2, 1, 3, 3, 2, 4, 3, 5, 5, 4, 4, 0, 0, 1, 0x7d }; + static const UINT8 val_ac_luminance[] = + { 0x01, 0x02, 0x03, 0x00, 0x04, 0x11, 0x05, 0x12, + 0x21, 0x31, 0x41, 0x06, 0x13, 0x51, 0x61, 0x07, + 0x22, 0x71, 0x14, 0x32, 0x81, 0x91, 0xa1, 0x08, + 0x23, 0x42, 0xb1, 0xc1, 0x15, 0x52, 0xd1, 0xf0, + 0x24, 0x33, 0x62, 0x72, 0x82, 0x09, 0x0a, 0x16, + 0x17, 0x18, 0x19, 0x1a, 0x25, 0x26, 0x27, 0x28, + 0x29, 0x2a, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, + 0x3a, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48, 0x49, + 0x4a, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58, 0x59, + 0x5a, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69, + 0x6a, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78, 0x79, + 0x7a, 0x83, 0x84, 0x85, 0x86, 0x87, 0x88, 0x89, + 0x8a, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97, 0x98, + 0x99, 0x9a, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7, + 0xa8, 0xa9, 0xaa, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, + 0xb7, 0xb8, 0xb9, 0xba, 0xc2, 0xc3, 0xc4, 0xc5, + 0xc6, 0xc7, 0xc8, 0xc9, 0xca, 0xd2, 0xd3, 0xd4, + 0xd5, 0xd6, 0xd7, 0xd8, 0xd9, 0xda, 0xe1, 0xe2, + 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, 0xe8, 0xe9, 0xea, + 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, 0xf8, + 0xf9, 0xfa }; + + static const UINT8 bits_ac_chrominance[17] = + { /* 0-base */ 0, 0, 2, 1, 2, 4, 4, 3, 4, 7, 5, 4, 4, 0, 1, 2, 0x77 }; + static const UINT8 val_ac_chrominance[] = + { 0x00, 0x01, 0x02, 0x03, 0x11, 0x04, 0x05, 0x21, + 0x31, 0x06, 0x12, 0x41, 0x51, 0x07, 0x61, 0x71, + 0x13, 0x22, 0x32, 0x81, 0x08, 0x14, 0x42, 0x91, + 0xa1, 0xb1, 0xc1, 0x09, 0x23, 0x33, 0x52, 0xf0, + 0x15, 0x62, 0x72, 0xd1, 0x0a, 0x16, 0x24, 0x34, + 0xe1, 0x25, 0xf1, 0x17, 0x18, 0x19, 0x1a, 0x26, + 0x27, 0x28, 0x29, 0x2a, 0x35, 0x36, 0x37, 0x38, + 0x39, 0x3a, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48, + 0x49, 0x4a, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58, + 0x59, 0x5a, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, + 0x69, 0x6a, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78, + 0x79, 0x7a, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, + 0x88, 0x89, 0x8a, 0x92, 0x93, 0x94, 0x95, 0x96, + 0x97, 0x98, 0x99, 0x9a, 0xa2, 0xa3, 0xa4, 0xa5, + 0xa6, 0xa7, 0xa8, 0xa9, 0xaa, 0xb2, 0xb3, 0xb4, + 0xb5, 0xb6, 0xb7, 0xb8, 0xb9, 0xba, 0xc2, 0xc3, + 0xc4, 0xc5, 0xc6, 0xc7, 0xc8, 0xc9, 0xca, 0xd2, + 0xd3, 0xd4, 0xd5, 0xd6, 0xd7, 0xd8, 0xd9, 0xda, + 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, 0xe8, 0xe9, + 0xea, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, 0xf8, + 0xf9, 0xfa }; + + add_huff_table(cinfo, &cinfo->dc_huff_tbl_ptrs[0], + bits_dc_luminance, val_dc_luminance); + add_huff_table(cinfo, &cinfo->ac_huff_tbl_ptrs[0], + bits_ac_luminance, val_ac_luminance); + add_huff_table(cinfo, &cinfo->dc_huff_tbl_ptrs[1], + bits_dc_chrominance, val_dc_chrominance); + add_huff_table(cinfo, &cinfo->ac_huff_tbl_ptrs[1], + bits_ac_chrominance, val_ac_chrominance); +} + + +/* + * Default parameter setup for compression. + * + * Applications that don't choose to use this routine must do their + * own setup of all these parameters. Alternately, you can call this + * to establish defaults and then alter parameters selectively. This + * is the recommended approach since, if we add any new parameters, + * your code will still work (they'll be set to reasonable defaults). + */ + +GLOBAL(void) +jpeg_set_defaults (j_compress_ptr cinfo) +{ + int i; + + /* Safety check to ensure start_compress not called yet. */ + if (cinfo->global_state != CSTATE_START) + ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state); + + /* Allocate comp_info array large enough for maximum component count. + * Array is made permanent in case application wants to compress + * multiple images at same param settings. + */ + if (cinfo->comp_info == NULL) + cinfo->comp_info = (jpeg_component_info *) + (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_PERMANENT, + MAX_COMPONENTS * SIZEOF(jpeg_component_info)); + + /* Initialize everything not dependent on the color space */ + + cinfo->scale_num = 1; /* 1:1 scaling */ + cinfo->scale_denom = 1; + cinfo->data_precision = BITS_IN_JSAMPLE; + /* Set up two quantization tables using default quality of 75 */ + jpeg_set_quality(cinfo, 75, TRUE); + /* Set up two Huffman tables */ + std_huff_tables(cinfo); + + /* Initialize default arithmetic coding conditioning */ + for (i = 0; i < NUM_ARITH_TBLS; i++) { + cinfo->arith_dc_L[i] = 0; + cinfo->arith_dc_U[i] = 1; + cinfo->arith_ac_K[i] = 5; + } + + /* Default is no multiple-scan output */ + cinfo->scan_info = NULL; + cinfo->num_scans = 0; + + /* Expect normal source image, not raw downsampled data */ + cinfo->raw_data_in = FALSE; + + /* Use Huffman coding, not arithmetic coding, by default */ + cinfo->arith_code = FALSE; + + /* By default, don't do extra passes to optimize entropy coding */ + cinfo->optimize_coding = FALSE; + /* The standard Huffman tables are only valid for 8-bit data precision. + * If the precision is higher, force optimization on so that usable + * tables will be computed. This test can be removed if default tables + * are supplied that are valid for the desired precision. + */ + if (cinfo->data_precision > 8) + cinfo->optimize_coding = TRUE; + + /* By default, use the simpler non-cosited sampling alignment */ + cinfo->CCIR601_sampling = FALSE; + + /* By default, apply fancy downsampling */ + cinfo->do_fancy_downsampling = TRUE; + + /* No input smoothing */ + cinfo->smoothing_factor = 0; + + /* DCT algorithm preference */ + cinfo->dct_method = JDCT_DEFAULT; + + /* No restart markers */ + cinfo->restart_interval = 0; + cinfo->restart_in_rows = 0; + + /* Fill in default JFIF marker parameters. Note that whether the marker + * will actually be written is determined by jpeg_set_colorspace. + * + * By default, the library emits JFIF version code 1.01. + * An application that wants to emit JFIF 1.02 extension markers should set + * JFIF_minor_version to 2. We could probably get away with just defaulting + * to 1.02, but there may still be some decoders in use that will complain + * about that; saying 1.01 should minimize compatibility problems. + */ + cinfo->JFIF_major_version = 1; /* Default JFIF version = 1.01 */ + cinfo->JFIF_minor_version = 1; + cinfo->density_unit = 0; /* Pixel size is unknown by default */ + cinfo->X_density = 1; /* Pixel aspect ratio is square by default */ + cinfo->Y_density = 1; + + /* Choose JPEG colorspace based on input space, set defaults accordingly */ + + jpeg_default_colorspace(cinfo); +} + + +/* + * Select an appropriate JPEG colorspace for in_color_space. + */ + +GLOBAL(void) +jpeg_default_colorspace (j_compress_ptr cinfo) +{ + switch (cinfo->in_color_space) { + case JCS_GRAYSCALE: + jpeg_set_colorspace(cinfo, JCS_GRAYSCALE); + break; + case JCS_RGB: + jpeg_set_colorspace(cinfo, JCS_YCbCr); + break; + case JCS_YCbCr: + jpeg_set_colorspace(cinfo, JCS_YCbCr); + break; + case JCS_CMYK: + jpeg_set_colorspace(cinfo, JCS_CMYK); /* By default, no translation */ + break; + case JCS_YCCK: + jpeg_set_colorspace(cinfo, JCS_YCCK); + break; + case JCS_UNKNOWN: + jpeg_set_colorspace(cinfo, JCS_UNKNOWN); + break; + default: + ERREXIT(cinfo, JERR_BAD_IN_COLORSPACE); + } +} + + +/* + * Set the JPEG colorspace, and choose colorspace-dependent default values. + */ + +GLOBAL(void) +jpeg_set_colorspace (j_compress_ptr cinfo, J_COLOR_SPACE colorspace) +{ + jpeg_component_info * compptr; + int ci; + +#define SET_COMP(index,id,hsamp,vsamp,quant,dctbl,actbl) \ + (compptr = &cinfo->comp_info[index], \ + compptr->component_id = (id), \ + compptr->h_samp_factor = (hsamp), \ + compptr->v_samp_factor = (vsamp), \ + compptr->quant_tbl_no = (quant), \ + compptr->dc_tbl_no = (dctbl), \ + compptr->ac_tbl_no = (actbl) ) + + /* Safety check to ensure start_compress not called yet. */ + if (cinfo->global_state != CSTATE_START) + ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state); + + /* For all colorspaces, we use Q and Huff tables 0 for luminance components, + * tables 1 for chrominance components. + */ + + cinfo->jpeg_color_space = colorspace; + + cinfo->write_JFIF_header = FALSE; /* No marker for non-JFIF colorspaces */ + cinfo->write_Adobe_marker = FALSE; /* write no Adobe marker by default */ + + switch (colorspace) { + case JCS_GRAYSCALE: + cinfo->write_JFIF_header = TRUE; /* Write a JFIF marker */ + cinfo->num_components = 1; + /* JFIF specifies component ID 1 */ + SET_COMP(0, 1, 1,1, 0, 0,0); + break; + case JCS_RGB: + cinfo->write_Adobe_marker = TRUE; /* write Adobe marker to flag RGB */ + cinfo->num_components = 3; + SET_COMP(0, 0x52 /* 'R' */, 1,1, 0, 0,0); + SET_COMP(1, 0x47 /* 'G' */, 1,1, 0, 0,0); + SET_COMP(2, 0x42 /* 'B' */, 1,1, 0, 0,0); + break; + case JCS_YCbCr: + cinfo->write_JFIF_header = TRUE; /* Write a JFIF marker */ + cinfo->num_components = 3; + /* JFIF specifies component IDs 1,2,3 */ + /* We default to 2x2 subsamples of chrominance */ + SET_COMP(0, 1, 2,2, 0, 0,0); + SET_COMP(1, 2, 1,1, 1, 1,1); + SET_COMP(2, 3, 1,1, 1, 1,1); + break; + case JCS_CMYK: + cinfo->write_Adobe_marker = TRUE; /* write Adobe marker to flag CMYK */ + cinfo->num_components = 4; + SET_COMP(0, 0x43 /* 'C' */, 1,1, 0, 0,0); + SET_COMP(1, 0x4D /* 'M' */, 1,1, 0, 0,0); + SET_COMP(2, 0x59 /* 'Y' */, 1,1, 0, 0,0); + SET_COMP(3, 0x4B /* 'K' */, 1,1, 0, 0,0); + break; + case JCS_YCCK: + cinfo->write_Adobe_marker = TRUE; /* write Adobe marker to flag YCCK */ + cinfo->num_components = 4; + SET_COMP(0, 1, 2,2, 0, 0,0); + SET_COMP(1, 2, 1,1, 1, 1,1); + SET_COMP(2, 3, 1,1, 1, 1,1); + SET_COMP(3, 4, 2,2, 0, 0,0); + break; + case JCS_UNKNOWN: + cinfo->num_components = cinfo->input_components; + if (cinfo->num_components < 1 || cinfo->num_components > MAX_COMPONENTS) + ERREXIT2(cinfo, JERR_COMPONENT_COUNT, cinfo->num_components, + MAX_COMPONENTS); + for (ci = 0; ci < cinfo->num_components; ci++) { + SET_COMP(ci, ci, 1,1, 0, 0,0); + } + break; + default: + ERREXIT(cinfo, JERR_BAD_J_COLORSPACE); + } +} + + +#ifdef C_PROGRESSIVE_SUPPORTED + +LOCAL(jpeg_scan_info *) +fill_a_scan (jpeg_scan_info * scanptr, int ci, + int Ss, int Se, int Ah, int Al) +/* Support routine: generate one scan for specified component */ +{ + scanptr->comps_in_scan = 1; + scanptr->component_index[0] = ci; + scanptr->Ss = Ss; + scanptr->Se = Se; + scanptr->Ah = Ah; + scanptr->Al = Al; + scanptr++; + return scanptr; +} + +LOCAL(jpeg_scan_info *) +fill_scans (jpeg_scan_info * scanptr, int ncomps, + int Ss, int Se, int Ah, int Al) +/* Support routine: generate one scan for each component */ +{ + int ci; + + for (ci = 0; ci < ncomps; ci++) { + scanptr->comps_in_scan = 1; + scanptr->component_index[0] = ci; + scanptr->Ss = Ss; + scanptr->Se = Se; + scanptr->Ah = Ah; + scanptr->Al = Al; + scanptr++; + } + return scanptr; +} + +LOCAL(jpeg_scan_info *) +fill_dc_scans (jpeg_scan_info * scanptr, int ncomps, int Ah, int Al) +/* Support routine: generate interleaved DC scan if possible, else N scans */ +{ + int ci; + + if (ncomps <= MAX_COMPS_IN_SCAN) { + /* Single interleaved DC scan */ + scanptr->comps_in_scan = ncomps; + for (ci = 0; ci < ncomps; ci++) + scanptr->component_index[ci] = ci; + scanptr->Ss = scanptr->Se = 0; + scanptr->Ah = Ah; + scanptr->Al = Al; + scanptr++; + } else { + /* Noninterleaved DC scan for each component */ + scanptr = fill_scans(scanptr, ncomps, 0, 0, Ah, Al); + } + return scanptr; +} + + +/* + * Create a recommended progressive-JPEG script. + * cinfo->num_components and cinfo->jpeg_color_space must be correct. + */ + +GLOBAL(void) +jpeg_simple_progression (j_compress_ptr cinfo) +{ + int ncomps = cinfo->num_components; + int nscans; + jpeg_scan_info * scanptr; + + /* Safety check to ensure start_compress not called yet. */ + if (cinfo->global_state != CSTATE_START) + ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state); + + /* Figure space needed for script. Calculation must match code below! */ + if (ncomps == 3 && cinfo->jpeg_color_space == JCS_YCbCr) { + /* Custom script for YCbCr color images. */ + nscans = 10; + } else { + /* All-purpose script for other color spaces. */ + if (ncomps > MAX_COMPS_IN_SCAN) + nscans = 6 * ncomps; /* 2 DC + 4 AC scans per component */ + else + nscans = 2 + 4 * ncomps; /* 2 DC scans; 4 AC scans per component */ + } + + /* Allocate space for script. + * We need to put it in the permanent pool in case the application performs + * multiple compressions without changing the settings. To avoid a memory + * leak if jpeg_simple_progression is called repeatedly for the same JPEG + * object, we try to re-use previously allocated space, and we allocate + * enough space to handle YCbCr even if initially asked for grayscale. + */ + if (cinfo->script_space == NULL || cinfo->script_space_size < nscans) { + cinfo->script_space_size = MAX(nscans, 10); + cinfo->script_space = (jpeg_scan_info *) + (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_PERMANENT, + cinfo->script_space_size * SIZEOF(jpeg_scan_info)); + } + scanptr = cinfo->script_space; + cinfo->scan_info = scanptr; + cinfo->num_scans = nscans; + + if (ncomps == 3 && cinfo->jpeg_color_space == JCS_YCbCr) { + /* Custom script for YCbCr color images. */ + /* Initial DC scan */ + scanptr = fill_dc_scans(scanptr, ncomps, 0, 1); + /* Initial AC scan: get some luma data out in a hurry */ + scanptr = fill_a_scan(scanptr, 0, 1, 5, 0, 2); + /* Chroma data is too small to be worth expending many scans on */ + scanptr = fill_a_scan(scanptr, 2, 1, 63, 0, 1); + scanptr = fill_a_scan(scanptr, 1, 1, 63, 0, 1); + /* Complete spectral selection for luma AC */ + scanptr = fill_a_scan(scanptr, 0, 6, 63, 0, 2); + /* Refine next bit of luma AC */ + scanptr = fill_a_scan(scanptr, 0, 1, 63, 2, 1); + /* Finish DC successive approximation */ + scanptr = fill_dc_scans(scanptr, ncomps, 1, 0); + /* Finish AC successive approximation */ + scanptr = fill_a_scan(scanptr, 2, 1, 63, 1, 0); + scanptr = fill_a_scan(scanptr, 1, 1, 63, 1, 0); + /* Luma bottom bit comes last since it's usually largest scan */ + scanptr = fill_a_scan(scanptr, 0, 1, 63, 1, 0); + } else { + /* All-purpose script for other color spaces. */ + /* Successive approximation first pass */ + scanptr = fill_dc_scans(scanptr, ncomps, 0, 1); + scanptr = fill_scans(scanptr, ncomps, 1, 5, 0, 2); + scanptr = fill_scans(scanptr, ncomps, 6, 63, 0, 2); + /* Successive approximation second pass */ + scanptr = fill_scans(scanptr, ncomps, 1, 63, 2, 1); + /* Successive approximation final pass */ + scanptr = fill_dc_scans(scanptr, ncomps, 1, 0); + scanptr = fill_scans(scanptr, ncomps, 1, 63, 1, 0); + } +} + +#endif /* C_PROGRESSIVE_SUPPORTED */ diff --git a/jpeg/jcprepct.c b/jpeg/jcprepct.c new file mode 100644 index 0000000..be44cc4 --- /dev/null +++ b/jpeg/jcprepct.c @@ -0,0 +1,358 @@ +/* + * jcprepct.c + * + * Copyright (C) 1994-1996, Thomas G. Lane. + * This file is part of the Independent JPEG Group's software. + * For conditions of distribution and use, see the accompanying README file. + * + * This file contains the compression preprocessing controller. + * This controller manages the color conversion, downsampling, + * and edge expansion steps. + * + * Most of the complexity here is associated with buffering input rows + * as required by the downsampler. See the comments at the head of + * jcsample.c for the downsampler's needs. + */ + +#define JPEG_INTERNALS +#include "jinclude.h" +#include "jpeglib.h" + + +/* At present, jcsample.c can request context rows only for smoothing. + * In the future, we might also need context rows for CCIR601 sampling + * or other more-complex downsampling procedures. The code to support + * context rows should be compiled only if needed. + */ +#ifdef INPUT_SMOOTHING_SUPPORTED +#define CONTEXT_ROWS_SUPPORTED +#endif + + +/* + * For the simple (no-context-row) case, we just need to buffer one + * row group's worth of pixels for the downsampling step. At the bottom of + * the image, we pad to a full row group by replicating the last pixel row. + * The downsampler's last output row is then replicated if needed to pad + * out to a full iMCU row. + * + * When providing context rows, we must buffer three row groups' worth of + * pixels. Three row groups are physically allocated, but the row pointer + * arrays are made five row groups high, with the extra pointers above and + * below "wrapping around" to point to the last and first real row groups. + * This allows the downsampler to access the proper context rows. + * At the top and bottom of the image, we create dummy context rows by + * copying the first or last real pixel row. This copying could be avoided + * by pointer hacking as is done in jdmainct.c, but it doesn't seem worth the + * trouble on the compression side. + */ + + +/* Private buffer controller object */ + +typedef struct { + struct jpeg_c_prep_controller pub; /* public fields */ + + /* Downsampling input buffer. This buffer holds color-converted data + * until we have enough to do a downsample step. + */ + JSAMPARRAY color_buf[MAX_COMPONENTS]; + + JDIMENSION rows_to_go; /* counts rows remaining in source image */ + int next_buf_row; /* index of next row to store in color_buf */ + +#ifdef CONTEXT_ROWS_SUPPORTED /* only needed for context case */ + int this_row_group; /* starting row index of group to process */ + int next_buf_stop; /* downsample when we reach this index */ +#endif +} my_prep_controller; + +typedef my_prep_controller * my_prep_ptr; + + +/* + * Initialize for a processing pass. + */ + +METHODDEF(void) +start_pass_prep (j_compress_ptr cinfo, J_BUF_MODE pass_mode) +{ + my_prep_ptr prep = (my_prep_ptr) cinfo->prep; + + if (pass_mode != JBUF_PASS_THRU) + ERREXIT(cinfo, JERR_BAD_BUFFER_MODE); + + /* Initialize total-height counter for detecting bottom of image */ + prep->rows_to_go = cinfo->image_height; + /* Mark the conversion buffer empty */ + prep->next_buf_row = 0; +#ifdef CONTEXT_ROWS_SUPPORTED + /* Preset additional state variables for context mode. + * These aren't used in non-context mode, so we needn't test which mode. + */ + prep->this_row_group = 0; + /* Set next_buf_stop to stop after two row groups have been read in. */ + prep->next_buf_stop = 2 * cinfo->max_v_samp_factor; +#endif +} + + +/* + * Expand an image vertically from height input_rows to height output_rows, + * by duplicating the bottom row. + */ + +LOCAL(void) +expand_bottom_edge (JSAMPARRAY image_data, JDIMENSION num_cols, + int input_rows, int output_rows) +{ + register int row; + + for (row = input_rows; row < output_rows; row++) { + jcopy_sample_rows(image_data, input_rows-1, image_data, row, + 1, num_cols); + } +} + + +/* + * Process some data in the simple no-context case. + * + * Preprocessor output data is counted in "row groups". A row group + * is defined to be v_samp_factor sample rows of each component. + * Downsampling will produce this much data from each max_v_samp_factor + * input rows. + */ + +METHODDEF(void) +pre_process_data (j_compress_ptr cinfo, + JSAMPARRAY input_buf, JDIMENSION *in_row_ctr, + JDIMENSION in_rows_avail, + JSAMPIMAGE output_buf, JDIMENSION *out_row_group_ctr, + JDIMENSION out_row_groups_avail) +{ + my_prep_ptr prep = (my_prep_ptr) cinfo->prep; + int numrows, ci; + JDIMENSION inrows; + jpeg_component_info * compptr; + + while (*in_row_ctr < in_rows_avail && + *out_row_group_ctr < out_row_groups_avail) { + /* Do color conversion to fill the conversion buffer. */ + inrows = in_rows_avail - *in_row_ctr; + numrows = cinfo->max_v_samp_factor - prep->next_buf_row; + numrows = (int) MIN((JDIMENSION) numrows, inrows); + (*cinfo->cconvert->color_convert) (cinfo, input_buf + *in_row_ctr, + prep->color_buf, + (JDIMENSION) prep->next_buf_row, + numrows); + *in_row_ctr += numrows; + prep->next_buf_row += numrows; + prep->rows_to_go -= numrows; + /* If at bottom of image, pad to fill the conversion buffer. */ + if (prep->rows_to_go == 0 && + prep->next_buf_row < cinfo->max_v_samp_factor) { + for (ci = 0; ci < cinfo->num_components; ci++) { + expand_bottom_edge(prep->color_buf[ci], cinfo->image_width, + prep->next_buf_row, cinfo->max_v_samp_factor); + } + prep->next_buf_row = cinfo->max_v_samp_factor; + } + /* If we've filled the conversion buffer, empty it. */ + if (prep->next_buf_row == cinfo->max_v_samp_factor) { + (*cinfo->downsample->downsample) (cinfo, + prep->color_buf, (JDIMENSION) 0, + output_buf, *out_row_group_ctr); + prep->next_buf_row = 0; + (*out_row_group_ctr)++; + } + /* If at bottom of image, pad the output to a full iMCU height. + * Note we assume the caller is providing a one-iMCU-height output buffer! + */ + if (prep->rows_to_go == 0 && + *out_row_group_ctr < out_row_groups_avail) { + for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components; + ci++, compptr++) { + numrows = (compptr->v_samp_factor * compptr->DCT_v_scaled_size) / + cinfo->min_DCT_v_scaled_size; + expand_bottom_edge(output_buf[ci], + compptr->width_in_blocks * compptr->DCT_h_scaled_size, + (int) (*out_row_group_ctr * numrows), + (int) (out_row_groups_avail * numrows)); + } + *out_row_group_ctr = out_row_groups_avail; + break; /* can exit outer loop without test */ + } + } +} + + +#ifdef CONTEXT_ROWS_SUPPORTED + +/* + * Process some data in the context case. + */ + +METHODDEF(void) +pre_process_context (j_compress_ptr cinfo, + JSAMPARRAY input_buf, JDIMENSION *in_row_ctr, + JDIMENSION in_rows_avail, + JSAMPIMAGE output_buf, JDIMENSION *out_row_group_ctr, + JDIMENSION out_row_groups_avail) +{ + my_prep_ptr prep = (my_prep_ptr) cinfo->prep; + int numrows, ci; + int buf_height = cinfo->max_v_samp_factor * 3; + JDIMENSION inrows; + + while (*out_row_group_ctr < out_row_groups_avail) { + if (*in_row_ctr < in_rows_avail) { + /* Do color conversion to fill the conversion buffer. */ + inrows = in_rows_avail - *in_row_ctr; + numrows = prep->next_buf_stop - prep->next_buf_row; + numrows = (int) MIN((JDIMENSION) numrows, inrows); + (*cinfo->cconvert->color_convert) (cinfo, input_buf + *in_row_ctr, + prep->color_buf, + (JDIMENSION) prep->next_buf_row, + numrows); + /* Pad at top of image, if first time through */ + if (prep->rows_to_go == cinfo->image_height) { + for (ci = 0; ci < cinfo->num_components; ci++) { + int row; + for (row = 1; row <= cinfo->max_v_samp_factor; row++) { + jcopy_sample_rows(prep->color_buf[ci], 0, + prep->color_buf[ci], -row, + 1, cinfo->image_width); + } + } + } + *in_row_ctr += numrows; + prep->next_buf_row += numrows; + prep->rows_to_go -= numrows; + } else { + /* Return for more data, unless we are at the bottom of the image. */ + if (prep->rows_to_go != 0) + break; + /* When at bottom of image, pad to fill the conversion buffer. */ + if (prep->next_buf_row < prep->next_buf_stop) { + for (ci = 0; ci < cinfo->num_components; ci++) { + expand_bottom_edge(prep->color_buf[ci], cinfo->image_width, + prep->next_buf_row, prep->next_buf_stop); + } + prep->next_buf_row = prep->next_buf_stop; + } + } + /* If we've gotten enough data, downsample a row group. */ + if (prep->next_buf_row == prep->next_buf_stop) { + (*cinfo->downsample->downsample) (cinfo, + prep->color_buf, + (JDIMENSION) prep->this_row_group, + output_buf, *out_row_group_ctr); + (*out_row_group_ctr)++; + /* Advance pointers with wraparound as necessary. */ + prep->this_row_group += cinfo->max_v_samp_factor; + if (prep->this_row_group >= buf_height) + prep->this_row_group = 0; + if (prep->next_buf_row >= buf_height) + prep->next_buf_row = 0; + prep->next_buf_stop = prep->next_buf_row + cinfo->max_v_samp_factor; + } + } +} + + +/* + * Create the wrapped-around downsampling input buffer needed for context mode. + */ + +LOCAL(void) +create_context_buffer (j_compress_ptr cinfo) +{ + my_prep_ptr prep = (my_prep_ptr) cinfo->prep; + int rgroup_height = cinfo->max_v_samp_factor; + int ci, i; + jpeg_component_info * compptr; + JSAMPARRAY true_buffer, fake_buffer; + + /* Grab enough space for fake row pointers for all the components; + * we need five row groups' worth of pointers for each component. + */ + fake_buffer = (JSAMPARRAY) + (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, + (cinfo->num_components * 5 * rgroup_height) * + SIZEOF(JSAMPROW)); + + for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components; + ci++, compptr++) { + /* Allocate the actual buffer space (3 row groups) for this component. + * We make the buffer wide enough to allow the downsampler to edge-expand + * horizontally within the buffer, if it so chooses. + */ + true_buffer = (*cinfo->mem->alloc_sarray) + ((j_common_ptr) cinfo, JPOOL_IMAGE, + (JDIMENSION) (((long) compptr->width_in_blocks * + cinfo->min_DCT_h_scaled_size * + cinfo->max_h_samp_factor) / compptr->h_samp_factor), + (JDIMENSION) (3 * rgroup_height)); + /* Copy true buffer row pointers into the middle of the fake row array */ + MEMCOPY(fake_buffer + rgroup_height, true_buffer, + 3 * rgroup_height * SIZEOF(JSAMPROW)); + /* Fill in the above and below wraparound pointers */ + for (i = 0; i < rgroup_height; i++) { + fake_buffer[i] = true_buffer[2 * rgroup_height + i]; + fake_buffer[4 * rgroup_height + i] = true_buffer[i]; + } + prep->color_buf[ci] = fake_buffer + rgroup_height; + fake_buffer += 5 * rgroup_height; /* point to space for next component */ + } +} + +#endif /* CONTEXT_ROWS_SUPPORTED */ + + +/* + * Initialize preprocessing controller. + */ + +GLOBAL(void) +jinit_c_prep_controller (j_compress_ptr cinfo, boolean need_full_buffer) +{ + my_prep_ptr prep; + int ci; + jpeg_component_info * compptr; + + if (need_full_buffer) /* safety check */ + ERREXIT(cinfo, JERR_BAD_BUFFER_MODE); + + prep = (my_prep_ptr) + (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, + SIZEOF(my_prep_controller)); + cinfo->prep = (struct jpeg_c_prep_controller *) prep; + prep->pub.start_pass = start_pass_prep; + + /* Allocate the color conversion buffer. + * We make the buffer wide enough to allow the downsampler to edge-expand + * horizontally within the buffer, if it so chooses. + */ + if (cinfo->downsample->need_context_rows) { + /* Set up to provide context rows */ +#ifdef CONTEXT_ROWS_SUPPORTED + prep->pub.pre_process_data = pre_process_context; + create_context_buffer(cinfo); +#else + ERREXIT(cinfo, JERR_NOT_COMPILED); +#endif + } else { + /* No context, just make it tall enough for one row group */ + prep->pub.pre_process_data = pre_process_data; + for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components; + ci++, compptr++) { + prep->color_buf[ci] = (*cinfo->mem->alloc_sarray) + ((j_common_ptr) cinfo, JPOOL_IMAGE, + (JDIMENSION) (((long) compptr->width_in_blocks * + cinfo->min_DCT_h_scaled_size * + cinfo->max_h_samp_factor) / compptr->h_samp_factor), + (JDIMENSION) cinfo->max_v_samp_factor); + } + } +} diff --git a/jpeg/jcsample.c b/jpeg/jcsample.c new file mode 100644 index 0000000..4d36f85 --- /dev/null +++ b/jpeg/jcsample.c @@ -0,0 +1,545 @@ +/* + * jcsample.c + * + * Copyright (C) 1991-1996, Thomas G. Lane. + * This file is part of the Independent JPEG Group's software. + * For conditions of distribution and use, see the accompanying README file. + * + * This file contains downsampling routines. + * + * Downsampling input data is counted in "row groups". A row group + * is defined to be max_v_samp_factor pixel rows of each component, + * from which the downsampler produces v_samp_factor sample rows. + * A single row group is processed in each call to the downsampler module. + * + * The downsampler is responsible for edge-expansion of its output data + * to fill an integral number of DCT blocks horizontally. The source buffer + * may be modified if it is helpful for this purpose (the source buffer is + * allocated wide enough to correspond to the desired output width). + * The caller (the prep controller) is responsible for vertical padding. + * + * The downsampler may request "context rows" by setting need_context_rows + * during startup. In this case, the input arrays will contain at least + * one row group's worth of pixels above and below the passed-in data; + * the caller will create dummy rows at image top and bottom by replicating + * the first or last real pixel row. + * + * An excellent reference for image resampling is + * Digital Image Warping, George Wolberg, 1990. + * Pub. by IEEE Computer Society Press, Los Alamitos, CA. ISBN 0-8186-8944-7. + * + * The downsampling algorithm used here is a simple average of the source + * pixels covered by the output pixel. The hi-falutin sampling literature + * refers to this as a "box filter". In general the characteristics of a box + * filter are not very good, but for the specific cases we normally use (1:1 + * and 2:1 ratios) the box is equivalent to a "triangle filter" which is not + * nearly so bad. If you intend to use other sampling ratios, you'd be well + * advised to improve this code. + * + * A simple input-smoothing capability is provided. This is mainly intended + * for cleaning up color-dithered GIF input files (if you find it inadequate, + * we suggest using an external filtering program such as pnmconvol). When + * enabled, each input pixel P is replaced by a weighted sum of itself and its + * eight neighbors. P's weight is 1-8*SF and each neighbor's weight is SF, + * where SF = (smoothing_factor / 1024). + * Currently, smoothing is only supported for 2h2v sampling factors. + */ + +#define JPEG_INTERNALS +#include "jinclude.h" +#include "jpeglib.h" + + +/* Pointer to routine to downsample a single component */ +typedef JMETHOD(void, downsample1_ptr, + (j_compress_ptr cinfo, jpeg_component_info * compptr, + JSAMPARRAY input_data, JSAMPARRAY output_data)); + +/* Private subobject */ + +typedef struct { + struct jpeg_downsampler pub; /* public fields */ + + /* Downsampling method pointers, one per component */ + downsample1_ptr methods[MAX_COMPONENTS]; + + /* Height of an output row group for each component. */ + int rowgroup_height[MAX_COMPONENTS]; + + /* These arrays save pixel expansion factors so that int_downsample need not + * recompute them each time. They are unused for other downsampling methods. + */ + UINT8 h_expand[MAX_COMPONENTS]; + UINT8 v_expand[MAX_COMPONENTS]; +} my_downsampler; + +typedef my_downsampler * my_downsample_ptr; + + +/* + * Initialize for a downsampling pass. + */ + +METHODDEF(void) +start_pass_downsample (j_compress_ptr cinfo) +{ + /* no work for now */ +} + + +/* + * Expand a component horizontally from width input_cols to width output_cols, + * by duplicating the rightmost samples. + */ + +LOCAL(void) +expand_right_edge (JSAMPARRAY image_data, int num_rows, + JDIMENSION input_cols, JDIMENSION output_cols) +{ + register JSAMPROW ptr; + register JSAMPLE pixval; + register int count; + int row; + int numcols = (int) (output_cols - input_cols); + + if (numcols > 0) { + for (row = 0; row < num_rows; row++) { + ptr = image_data[row] + input_cols; + pixval = ptr[-1]; /* don't need GETJSAMPLE() here */ + for (count = numcols; count > 0; count--) + *ptr++ = pixval; + } + } +} + + +/* + * Do downsampling for a whole row group (all components). + * + * In this version we simply downsample each component independently. + */ + +METHODDEF(void) +sep_downsample (j_compress_ptr cinfo, + JSAMPIMAGE input_buf, JDIMENSION in_row_index, + JSAMPIMAGE output_buf, JDIMENSION out_row_group_index) +{ + my_downsample_ptr downsample = (my_downsample_ptr) cinfo->downsample; + int ci; + jpeg_component_info * compptr; + JSAMPARRAY in_ptr, out_ptr; + + for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components; + ci++, compptr++) { + in_ptr = input_buf[ci] + in_row_index; + out_ptr = output_buf[ci] + + (out_row_group_index * downsample->rowgroup_height[ci]); + (*downsample->methods[ci]) (cinfo, compptr, in_ptr, out_ptr); + } +} + + +/* + * Downsample pixel values of a single component. + * One row group is processed per call. + * This version handles arbitrary integral sampling ratios, without smoothing. + * Note that this version is not actually used for customary sampling ratios. + */ + +METHODDEF(void) +int_downsample (j_compress_ptr cinfo, jpeg_component_info * compptr, + JSAMPARRAY input_data, JSAMPARRAY output_data) +{ + my_downsample_ptr downsample = (my_downsample_ptr) cinfo->downsample; + int inrow, outrow, h_expand, v_expand, numpix, numpix2, h, v; + JDIMENSION outcol, outcol_h; /* outcol_h == outcol*h_expand */ + JDIMENSION output_cols = compptr->width_in_blocks * compptr->DCT_h_scaled_size; + JSAMPROW inptr, outptr; + INT32 outvalue; + + h_expand = downsample->h_expand[compptr->component_index]; + v_expand = downsample->v_expand[compptr->component_index]; + numpix = h_expand * v_expand; + numpix2 = numpix/2; + + /* Expand input data enough to let all the output samples be generated + * by the standard loop. Special-casing padded output would be more + * efficient. + */ + expand_right_edge(input_data, cinfo->max_v_samp_factor, + cinfo->image_width, output_cols * h_expand); + + inrow = outrow = 0; + while (inrow < cinfo->max_v_samp_factor) { + outptr = output_data[outrow]; + for (outcol = 0, outcol_h = 0; outcol < output_cols; + outcol++, outcol_h += h_expand) { + outvalue = 0; + for (v = 0; v < v_expand; v++) { + inptr = input_data[inrow+v] + outcol_h; + for (h = 0; h < h_expand; h++) { + outvalue += (INT32) GETJSAMPLE(*inptr++); + } + } + *outptr++ = (JSAMPLE) ((outvalue + numpix2) / numpix); + } + inrow += v_expand; + outrow++; + } +} + + +/* + * Downsample pixel values of a single component. + * This version handles the special case of a full-size component, + * without smoothing. + */ + +METHODDEF(void) +fullsize_downsample (j_compress_ptr cinfo, jpeg_component_info * compptr, + JSAMPARRAY input_data, JSAMPARRAY output_data) +{ + /* Copy the data */ + jcopy_sample_rows(input_data, 0, output_data, 0, + cinfo->max_v_samp_factor, cinfo->image_width); + /* Edge-expand */ + expand_right_edge(output_data, cinfo->max_v_samp_factor, cinfo->image_width, + compptr->width_in_blocks * compptr->DCT_h_scaled_size); +} + + +/* + * Downsample pixel values of a single component. + * This version handles the common case of 2:1 horizontal and 1:1 vertical, + * without smoothing. + * + * A note about the "bias" calculations: when rounding fractional values to + * integer, we do not want to always round 0.5 up to the next integer. + * If we did that, we'd introduce a noticeable bias towards larger values. + * Instead, this code is arranged so that 0.5 will be rounded up or down at + * alternate pixel locations (a simple ordered dither pattern). + */ + +METHODDEF(void) +h2v1_downsample (j_compress_ptr cinfo, jpeg_component_info * compptr, + JSAMPARRAY input_data, JSAMPARRAY output_data) +{ + int inrow; + JDIMENSION outcol; + JDIMENSION output_cols = compptr->width_in_blocks * compptr->DCT_h_scaled_size; + register JSAMPROW inptr, outptr; + register int bias; + + /* Expand input data enough to let all the output samples be generated + * by the standard loop. Special-casing padded output would be more + * efficient. + */ + expand_right_edge(input_data, cinfo->max_v_samp_factor, + cinfo->image_width, output_cols * 2); + + for (inrow = 0; inrow < cinfo->max_v_samp_factor; inrow++) { + outptr = output_data[inrow]; + inptr = input_data[inrow]; + bias = 0; /* bias = 0,1,0,1,... for successive samples */ + for (outcol = 0; outcol < output_cols; outcol++) { + *outptr++ = (JSAMPLE) ((GETJSAMPLE(*inptr) + GETJSAMPLE(inptr[1]) + + bias) >> 1); + bias ^= 1; /* 0=>1, 1=>0 */ + inptr += 2; + } + } +} + + +/* + * Downsample pixel values of a single component. + * This version handles the standard case of 2:1 horizontal and 2:1 vertical, + * without smoothing. + */ + +METHODDEF(void) +h2v2_downsample (j_compress_ptr cinfo, jpeg_component_info * compptr, + JSAMPARRAY input_data, JSAMPARRAY output_data) +{ + int inrow, outrow; + JDIMENSION outcol; + JDIMENSION output_cols = compptr->width_in_blocks * compptr->DCT_h_scaled_size; + register JSAMPROW inptr0, inptr1, outptr; + register int bias; + + /* Expand input data enough to let all the output samples be generated + * by the standard loop. Special-casing padded output would be more + * efficient. + */ + expand_right_edge(input_data, cinfo->max_v_samp_factor, + cinfo->image_width, output_cols * 2); + + inrow = outrow = 0; + while (inrow < cinfo->max_v_samp_factor) { + outptr = output_data[outrow]; + inptr0 = input_data[inrow]; + inptr1 = input_data[inrow+1]; + bias = 1; /* bias = 1,2,1,2,... for successive samples */ + for (outcol = 0; outcol < output_cols; outcol++) { + *outptr++ = (JSAMPLE) ((GETJSAMPLE(*inptr0) + GETJSAMPLE(inptr0[1]) + + GETJSAMPLE(*inptr1) + GETJSAMPLE(inptr1[1]) + + bias) >> 2); + bias ^= 3; /* 1=>2, 2=>1 */ + inptr0 += 2; inptr1 += 2; + } + inrow += 2; + outrow++; + } +} + + +#ifdef INPUT_SMOOTHING_SUPPORTED + +/* + * Downsample pixel values of a single component. + * This version handles the standard case of 2:1 horizontal and 2:1 vertical, + * with smoothing. One row of context is required. + */ + +METHODDEF(void) +h2v2_smooth_downsample (j_compress_ptr cinfo, jpeg_component_info * compptr, + JSAMPARRAY input_data, JSAMPARRAY output_data) +{ + int inrow, outrow; + JDIMENSION colctr; + JDIMENSION output_cols = compptr->width_in_blocks * compptr->DCT_h_scaled_size; + register JSAMPROW inptr0, inptr1, above_ptr, below_ptr, outptr; + INT32 membersum, neighsum, memberscale, neighscale; + + /* Expand input data enough to let all the output samples be generated + * by the standard loop. Special-casing padded output would be more + * efficient. + */ + expand_right_edge(input_data - 1, cinfo->max_v_samp_factor + 2, + cinfo->image_width, output_cols * 2); + + /* We don't bother to form the individual "smoothed" input pixel values; + * we can directly compute the output which is the average of the four + * smoothed values. Each of the four member pixels contributes a fraction + * (1-8*SF) to its own smoothed image and a fraction SF to each of the three + * other smoothed pixels, therefore a total fraction (1-5*SF)/4 to the final + * output. The four corner-adjacent neighbor pixels contribute a fraction + * SF to just one smoothed pixel, or SF/4 to the final output; while the + * eight edge-adjacent neighbors contribute SF to each of two smoothed + * pixels, or SF/2 overall. In order to use integer arithmetic, these + * factors are scaled by 2^16 = 65536. + * Also recall that SF = smoothing_factor / 1024. + */ + + memberscale = 16384 - cinfo->smoothing_factor * 80; /* scaled (1-5*SF)/4 */ + neighscale = cinfo->smoothing_factor * 16; /* scaled SF/4 */ + + inrow = outrow = 0; + while (inrow < cinfo->max_v_samp_factor) { + outptr = output_data[outrow]; + inptr0 = input_data[inrow]; + inptr1 = input_data[inrow+1]; + above_ptr = input_data[inrow-1]; + below_ptr = input_data[inrow+2]; + + /* Special case for first column: pretend column -1 is same as column 0 */ + membersum = GETJSAMPLE(*inptr0) + GETJSAMPLE(inptr0[1]) + + GETJSAMPLE(*inptr1) + GETJSAMPLE(inptr1[1]); + neighsum = GETJSAMPLE(*above_ptr) + GETJSAMPLE(above_ptr[1]) + + GETJSAMPLE(*below_ptr) + GETJSAMPLE(below_ptr[1]) + + GETJSAMPLE(*inptr0) + GETJSAMPLE(inptr0[2]) + + GETJSAMPLE(*inptr1) + GETJSAMPLE(inptr1[2]); + neighsum += neighsum; + neighsum += GETJSAMPLE(*above_ptr) + GETJSAMPLE(above_ptr[2]) + + GETJSAMPLE(*below_ptr) + GETJSAMPLE(below_ptr[2]); + membersum = membersum * memberscale + neighsum * neighscale; + *outptr++ = (JSAMPLE) ((membersum + 32768) >> 16); + inptr0 += 2; inptr1 += 2; above_ptr += 2; below_ptr += 2; + + for (colctr = output_cols - 2; colctr > 0; colctr--) { + /* sum of pixels directly mapped to this output element */ + membersum = GETJSAMPLE(*inptr0) + GETJSAMPLE(inptr0[1]) + + GETJSAMPLE(*inptr1) + GETJSAMPLE(inptr1[1]); + /* sum of edge-neighbor pixels */ + neighsum = GETJSAMPLE(*above_ptr) + GETJSAMPLE(above_ptr[1]) + + GETJSAMPLE(*below_ptr) + GETJSAMPLE(below_ptr[1]) + + GETJSAMPLE(inptr0[-1]) + GETJSAMPLE(inptr0[2]) + + GETJSAMPLE(inptr1[-1]) + GETJSAMPLE(inptr1[2]); + /* The edge-neighbors count twice as much as corner-neighbors */ + neighsum += neighsum; + /* Add in the corner-neighbors */ + neighsum += GETJSAMPLE(above_ptr[-1]) + GETJSAMPLE(above_ptr[2]) + + GETJSAMPLE(below_ptr[-1]) + GETJSAMPLE(below_ptr[2]); + /* form final output scaled up by 2^16 */ + membersum = membersum * memberscale + neighsum * neighscale; + /* round, descale and output it */ + *outptr++ = (JSAMPLE) ((membersum + 32768) >> 16); + inptr0 += 2; inptr1 += 2; above_ptr += 2; below_ptr += 2; + } + + /* Special case for last column */ + membersum = GETJSAMPLE(*inptr0) + GETJSAMPLE(inptr0[1]) + + GETJSAMPLE(*inptr1) + GETJSAMPLE(inptr1[1]); + neighsum = GETJSAMPLE(*above_ptr) + GETJSAMPLE(above_ptr[1]) + + GETJSAMPLE(*below_ptr) + GETJSAMPLE(below_ptr[1]) + + GETJSAMPLE(inptr0[-1]) + GETJSAMPLE(inptr0[1]) + + GETJSAMPLE(inptr1[-1]) + GETJSAMPLE(inptr1[1]); + neighsum += neighsum; + neighsum += GETJSAMPLE(above_ptr[-1]) + GETJSAMPLE(above_ptr[1]) + + GETJSAMPLE(below_ptr[-1]) + GETJSAMPLE(below_ptr[1]); + membersum = membersum * memberscale + neighsum * neighscale; + *outptr = (JSAMPLE) ((membersum + 32768) >> 16); + + inrow += 2; + outrow++; + } +} + + +/* + * Downsample pixel values of a single component. + * This version handles the special case of a full-size component, + * with smoothing. One row of context is required. + */ + +METHODDEF(void) +fullsize_smooth_downsample (j_compress_ptr cinfo, jpeg_component_info *compptr, + JSAMPARRAY input_data, JSAMPARRAY output_data) +{ + int inrow; + JDIMENSION colctr; + JDIMENSION output_cols = compptr->width_in_blocks * compptr->DCT_h_scaled_size; + register JSAMPROW inptr, above_ptr, below_ptr, outptr; + INT32 membersum, neighsum, memberscale, neighscale; + int colsum, lastcolsum, nextcolsum; + + /* Expand input data enough to let all the output samples be generated + * by the standard loop. Special-casing padded output would be more + * efficient. + */ + expand_right_edge(input_data - 1, cinfo->max_v_samp_factor + 2, + cinfo->image_width, output_cols); + + /* Each of the eight neighbor pixels contributes a fraction SF to the + * smoothed pixel, while the main pixel contributes (1-8*SF). In order + * to use integer arithmetic, these factors are multiplied by 2^16 = 65536. + * Also recall that SF = smoothing_factor / 1024. + */ + + memberscale = 65536L - cinfo->smoothing_factor * 512L; /* scaled 1-8*SF */ + neighscale = cinfo->smoothing_factor * 64; /* scaled SF */ + + for (inrow = 0; inrow < cinfo->max_v_samp_factor; inrow++) { + outptr = output_data[inrow]; + inptr = input_data[inrow]; + above_ptr = input_data[inrow-1]; + below_ptr = input_data[inrow+1]; + + /* Special case for first column */ + colsum = GETJSAMPLE(*above_ptr++) + GETJSAMPLE(*below_ptr++) + + GETJSAMPLE(*inptr); + membersum = GETJSAMPLE(*inptr++); + nextcolsum = GETJSAMPLE(*above_ptr) + GETJSAMPLE(*below_ptr) + + GETJSAMPLE(*inptr); + neighsum = colsum + (colsum - membersum) + nextcolsum; + membersum = membersum * memberscale + neighsum * neighscale; + *outptr++ = (JSAMPLE) ((membersum + 32768) >> 16); + lastcolsum = colsum; colsum = nextcolsum; + + for (colctr = output_cols - 2; colctr > 0; colctr--) { + membersum = GETJSAMPLE(*inptr++); + above_ptr++; below_ptr++; + nextcolsum = GETJSAMPLE(*above_ptr) + GETJSAMPLE(*below_ptr) + + GETJSAMPLE(*inptr); + neighsum = lastcolsum + (colsum - membersum) + nextcolsum; + membersum = membersum * memberscale + neighsum * neighscale; + *outptr++ = (JSAMPLE) ((membersum + 32768) >> 16); + lastcolsum = colsum; colsum = nextcolsum; + } + + /* Special case for last column */ + membersum = GETJSAMPLE(*inptr); + neighsum = lastcolsum + (colsum - membersum) + colsum; + membersum = membersum * memberscale + neighsum * neighscale; + *outptr = (JSAMPLE) ((membersum + 32768) >> 16); + + } +} + +#endif /* INPUT_SMOOTHING_SUPPORTED */ + + +/* + * Module initialization routine for downsampling. + * Note that we must select a routine for each component. + */ + +GLOBAL(void) +jinit_downsampler (j_compress_ptr cinfo) +{ + my_downsample_ptr downsample; + int ci; + jpeg_component_info * compptr; + boolean smoothok = TRUE; + int h_in_group, v_in_group, h_out_group, v_out_group; + + downsample = (my_downsample_ptr) + (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, + SIZEOF(my_downsampler)); + cinfo->downsample = (struct jpeg_downsampler *) downsample; + downsample->pub.start_pass = start_pass_downsample; + downsample->pub.downsample = sep_downsample; + downsample->pub.need_context_rows = FALSE; + + if (cinfo->CCIR601_sampling) + ERREXIT(cinfo, JERR_CCIR601_NOTIMPL); + + /* Verify we can handle the sampling factors, and set up method pointers */ + for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components; + ci++, compptr++) { + /* Compute size of an "output group" for DCT scaling. This many samples + * are to be converted from max_h_samp_factor * max_v_samp_factor pixels. + */ + h_out_group = (compptr->h_samp_factor * compptr->DCT_h_scaled_size) / + cinfo->min_DCT_h_scaled_size; + v_out_group = (compptr->v_samp_factor * compptr->DCT_v_scaled_size) / + cinfo->min_DCT_v_scaled_size; + h_in_group = cinfo->max_h_samp_factor; + v_in_group = cinfo->max_v_samp_factor; + downsample->rowgroup_height[ci] = v_out_group; /* save for use later */ + if (h_in_group == h_out_group && v_in_group == v_out_group) { +#ifdef INPUT_SMOOTHING_SUPPORTED + if (cinfo->smoothing_factor) { + downsample->methods[ci] = fullsize_smooth_downsample; + downsample->pub.need_context_rows = TRUE; + } else +#endif + downsample->methods[ci] = fullsize_downsample; + } else if (h_in_group == h_out_group * 2 && + v_in_group == v_out_group) { + smoothok = FALSE; + downsample->methods[ci] = h2v1_downsample; + } else if (h_in_group == h_out_group * 2 && + v_in_group == v_out_group * 2) { +#ifdef INPUT_SMOOTHING_SUPPORTED + if (cinfo->smoothing_factor) { + downsample->methods[ci] = h2v2_smooth_downsample; + downsample->pub.need_context_rows = TRUE; + } else +#endif + downsample->methods[ci] = h2v2_downsample; + } else if ((h_in_group % h_out_group) == 0 && + (v_in_group % v_out_group) == 0) { + smoothok = FALSE; + downsample->methods[ci] = int_downsample; + downsample->h_expand[ci] = (UINT8) (h_in_group / h_out_group); + downsample->v_expand[ci] = (UINT8) (v_in_group / v_out_group); + } else + ERREXIT(cinfo, JERR_FRACT_SAMPLE_NOTIMPL); + } + +#ifdef INPUT_SMOOTHING_SUPPORTED + if (cinfo->smoothing_factor && !smoothok) + TRACEMS(cinfo, 0, JTRC_SMOOTH_NOTIMPL); +#endif +} diff --git a/jpeg/jctrans.c b/jpeg/jctrans.c new file mode 100644 index 0000000..f7d7b81 --- /dev/null +++ b/jpeg/jctrans.c @@ -0,0 +1,382 @@ +/* + * jctrans.c + * + * Copyright (C) 1995-1998, Thomas G. Lane. + * Modified 2000-2011 by Guido Vollbeding. + * This file is part of the Independent JPEG Group's software. + * For conditions of distribution and use, see the accompanying README file. + * + * This file contains library routines for transcoding compression, + * that is, writing raw DCT coefficient arrays to an output JPEG file. + * The routines in jcapimin.c will also be needed by a transcoder. + */ + +#define JPEG_INTERNALS +#include "jinclude.h" +#include "jpeglib.h" + + +/* Forward declarations */ +LOCAL(void) transencode_master_selection + JPP((j_compress_ptr cinfo, jvirt_barray_ptr * coef_arrays)); +LOCAL(void) transencode_coef_controller + JPP((j_compress_ptr cinfo, jvirt_barray_ptr * coef_arrays)); + + +/* + * Compression initialization for writing raw-coefficient data. + * Before calling this, all parameters and a data destination must be set up. + * Call jpeg_finish_compress() to actually write the data. + * + * The number of passed virtual arrays must match cinfo->num_components. + * Note that the virtual arrays need not be filled or even realized at + * the time write_coefficients is called; indeed, if the virtual arrays + * were requested from this compression object's memory manager, they + * typically will be realized during this routine and filled afterwards. + */ + +GLOBAL(void) +jpeg_write_coefficients (j_compress_ptr cinfo, jvirt_barray_ptr * coef_arrays) +{ + if (cinfo->global_state != CSTATE_START) + ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state); + /* Mark all tables to be written */ + jpeg_suppress_tables(cinfo, FALSE); + /* (Re)initialize error mgr and destination modules */ + (*cinfo->err->reset_error_mgr) ((j_common_ptr) cinfo); + (*cinfo->dest->init_destination) (cinfo); + /* Perform master selection of active modules */ + transencode_master_selection(cinfo, coef_arrays); + /* Wait for jpeg_finish_compress() call */ + cinfo->next_scanline = 0; /* so jpeg_write_marker works */ + cinfo->global_state = CSTATE_WRCOEFS; +} + + +/* + * Initialize the compression object with default parameters, + * then copy from the source object all parameters needed for lossless + * transcoding. Parameters that can be varied without loss (such as + * scan script and Huffman optimization) are left in their default states. + */ + +GLOBAL(void) +jpeg_copy_critical_parameters (j_decompress_ptr srcinfo, + j_compress_ptr dstinfo) +{ + JQUANT_TBL ** qtblptr; + jpeg_component_info *incomp, *outcomp; + JQUANT_TBL *c_quant, *slot_quant; + int tblno, ci, coefi; + + /* Safety check to ensure start_compress not called yet. */ + if (dstinfo->global_state != CSTATE_START) + ERREXIT1(dstinfo, JERR_BAD_STATE, dstinfo->global_state); + /* Copy fundamental image dimensions */ + dstinfo->image_width = srcinfo->image_width; + dstinfo->image_height = srcinfo->image_height; + dstinfo->input_components = srcinfo->num_components; + dstinfo->in_color_space = srcinfo->jpeg_color_space; + dstinfo->jpeg_width = srcinfo->output_width; + dstinfo->jpeg_height = srcinfo->output_height; + dstinfo->min_DCT_h_scaled_size = srcinfo->min_DCT_h_scaled_size; + dstinfo->min_DCT_v_scaled_size = srcinfo->min_DCT_v_scaled_size; + /* Initialize all parameters to default values */ + jpeg_set_defaults(dstinfo); + /* jpeg_set_defaults may choose wrong colorspace, eg YCbCr if input is RGB. + * Fix it to get the right header markers for the image colorspace. + */ + jpeg_set_colorspace(dstinfo, srcinfo->jpeg_color_space); + dstinfo->data_precision = srcinfo->data_precision; + dstinfo->CCIR601_sampling = srcinfo->CCIR601_sampling; + /* Copy the source's quantization tables. */ + for (tblno = 0; tblno < NUM_QUANT_TBLS; tblno++) { + if (srcinfo->quant_tbl_ptrs[tblno] != NULL) { + qtblptr = & dstinfo->quant_tbl_ptrs[tblno]; + if (*qtblptr == NULL) + *qtblptr = jpeg_alloc_quant_table((j_common_ptr) dstinfo); + MEMCOPY((*qtblptr)->quantval, + srcinfo->quant_tbl_ptrs[tblno]->quantval, + SIZEOF((*qtblptr)->quantval)); + (*qtblptr)->sent_table = FALSE; + } + } + /* Copy the source's per-component info. + * Note we assume jpeg_set_defaults has allocated the dest comp_info array. + */ + dstinfo->num_components = srcinfo->num_components; + if (dstinfo->num_components < 1 || dstinfo->num_components > MAX_COMPONENTS) + ERREXIT2(dstinfo, JERR_COMPONENT_COUNT, dstinfo->num_components, + MAX_COMPONENTS); + for (ci = 0, incomp = srcinfo->comp_info, outcomp = dstinfo->comp_info; + ci < dstinfo->num_components; ci++, incomp++, outcomp++) { + outcomp->component_id = incomp->component_id; + outcomp->h_samp_factor = incomp->h_samp_factor; + outcomp->v_samp_factor = incomp->v_samp_factor; + outcomp->quant_tbl_no = incomp->quant_tbl_no; + /* Make sure saved quantization table for component matches the qtable + * slot. If not, the input file re-used this qtable slot. + * IJG encoder currently cannot duplicate this. + */ + tblno = outcomp->quant_tbl_no; + if (tblno < 0 || tblno >= NUM_QUANT_TBLS || + srcinfo->quant_tbl_ptrs[tblno] == NULL) + ERREXIT1(dstinfo, JERR_NO_QUANT_TABLE, tblno); + slot_quant = srcinfo->quant_tbl_ptrs[tblno]; + c_quant = incomp->quant_table; + if (c_quant != NULL) { + for (coefi = 0; coefi < DCTSIZE2; coefi++) { + if (c_quant->quantval[coefi] != slot_quant->quantval[coefi]) + ERREXIT1(dstinfo, JERR_MISMATCHED_QUANT_TABLE, tblno); + } + } + /* Note: we do not copy the source's Huffman table assignments; + * instead we rely on jpeg_set_colorspace to have made a suitable choice. + */ + } + /* Also copy JFIF version and resolution information, if available. + * Strictly speaking this isn't "critical" info, but it's nearly + * always appropriate to copy it if available. In particular, + * if the application chooses to copy JFIF 1.02 extension markers from + * the source file, we need to copy the version to make sure we don't + * emit a file that has 1.02 extensions but a claimed version of 1.01. + * We will *not*, however, copy version info from mislabeled "2.01" files. + */ + if (srcinfo->saw_JFIF_marker) { + if (srcinfo->JFIF_major_version == 1) { + dstinfo->JFIF_major_version = srcinfo->JFIF_major_version; + dstinfo->JFIF_minor_version = srcinfo->JFIF_minor_version; + } + dstinfo->density_unit = srcinfo->density_unit; + dstinfo->X_density = srcinfo->X_density; + dstinfo->Y_density = srcinfo->Y_density; + } +} + + +/* + * Master selection of compression modules for transcoding. + * This substitutes for jcinit.c's initialization of the full compressor. + */ + +LOCAL(void) +transencode_master_selection (j_compress_ptr cinfo, + jvirt_barray_ptr * coef_arrays) +{ + /* Initialize master control (includes parameter checking/processing) */ + jinit_c_master_control(cinfo, TRUE /* transcode only */); + + /* Entropy encoding: either Huffman or arithmetic coding. */ + if (cinfo->arith_code) + jinit_arith_encoder(cinfo); + else { + jinit_huff_encoder(cinfo); + } + + /* We need a special coefficient buffer controller. */ + transencode_coef_controller(cinfo, coef_arrays); + + jinit_marker_writer(cinfo); + + /* We can now tell the memory manager to allocate virtual arrays. */ + (*cinfo->mem->realize_virt_arrays) ((j_common_ptr) cinfo); + + /* Write the datastream header (SOI, JFIF) immediately. + * Frame and scan headers are postponed till later. + * This lets application insert special markers after the SOI. + */ + (*cinfo->marker->write_file_header) (cinfo); +} + + +/* + * The rest of this file is a special implementation of the coefficient + * buffer controller. This is similar to jccoefct.c, but it handles only + * output from presupplied virtual arrays. Furthermore, we generate any + * dummy padding blocks on-the-fly rather than expecting them to be present + * in the arrays. + */ + +/* Private buffer controller object */ + +typedef struct { + struct jpeg_c_coef_controller pub; /* public fields */ + + JDIMENSION iMCU_row_num; /* iMCU row # within image */ + JDIMENSION mcu_ctr; /* counts MCUs processed in current row */ + int MCU_vert_offset; /* counts MCU rows within iMCU row */ + int MCU_rows_per_iMCU_row; /* number of such rows needed */ + + /* Virtual block array for each component. */ + jvirt_barray_ptr * whole_image; + + /* Workspace for constructing dummy blocks at right/bottom edges. */ + JBLOCKROW dummy_buffer[C_MAX_BLOCKS_IN_MCU]; +} my_coef_controller; + +typedef my_coef_controller * my_coef_ptr; + + +LOCAL(void) +start_iMCU_row (j_compress_ptr cinfo) +/* Reset within-iMCU-row counters for a new row */ +{ + my_coef_ptr coef = (my_coef_ptr) cinfo->coef; + + /* In an interleaved scan, an MCU row is the same as an iMCU row. + * In a noninterleaved scan, an iMCU row has v_samp_factor MCU rows. + * But at the bottom of the image, process only what's left. + */ + if (cinfo->comps_in_scan > 1) { + coef->MCU_rows_per_iMCU_row = 1; + } else { + if (coef->iMCU_row_num < (cinfo->total_iMCU_rows-1)) + coef->MCU_rows_per_iMCU_row = cinfo->cur_comp_info[0]->v_samp_factor; + else + coef->MCU_rows_per_iMCU_row = cinfo->cur_comp_info[0]->last_row_height; + } + + coef->mcu_ctr = 0; + coef->MCU_vert_offset = 0; +} + + +/* + * Initialize for a processing pass. + */ + +METHODDEF(void) +start_pass_coef (j_compress_ptr cinfo, J_BUF_MODE pass_mode) +{ + my_coef_ptr coef = (my_coef_ptr) cinfo->coef; + + if (pass_mode != JBUF_CRANK_DEST) + ERREXIT(cinfo, JERR_BAD_BUFFER_MODE); + + coef->iMCU_row_num = 0; + start_iMCU_row(cinfo); +} + + +/* + * Process some data. + * We process the equivalent of one fully interleaved MCU row ("iMCU" row) + * per call, ie, v_samp_factor block rows for each component in the scan. + * The data is obtained from the virtual arrays and fed to the entropy coder. + * Returns TRUE if the iMCU row is completed, FALSE if suspended. + * + * NB: input_buf is ignored; it is likely to be a NULL pointer. + */ + +METHODDEF(boolean) +compress_output (j_compress_ptr cinfo, JSAMPIMAGE input_buf) +{ + my_coef_ptr coef = (my_coef_ptr) cinfo->coef; + JDIMENSION MCU_col_num; /* index of current MCU within row */ + JDIMENSION last_MCU_col = cinfo->MCUs_per_row - 1; + JDIMENSION last_iMCU_row = cinfo->total_iMCU_rows - 1; + int blkn, ci, xindex, yindex, yoffset, blockcnt; + JDIMENSION start_col; + JBLOCKARRAY buffer[MAX_COMPS_IN_SCAN]; + JBLOCKROW MCU_buffer[C_MAX_BLOCKS_IN_MCU]; + JBLOCKROW buffer_ptr; + jpeg_component_info *compptr; + + /* Align the virtual buffers for the components used in this scan. */ + for (ci = 0; ci < cinfo->comps_in_scan; ci++) { + compptr = cinfo->cur_comp_info[ci]; + buffer[ci] = (*cinfo->mem->access_virt_barray) + ((j_common_ptr) cinfo, coef->whole_image[compptr->component_index], + coef->iMCU_row_num * compptr->v_samp_factor, + (JDIMENSION) compptr->v_samp_factor, FALSE); + } + + /* Loop to process one whole iMCU row */ + for (yoffset = coef->MCU_vert_offset; yoffset < coef->MCU_rows_per_iMCU_row; + yoffset++) { + for (MCU_col_num = coef->mcu_ctr; MCU_col_num < cinfo->MCUs_per_row; + MCU_col_num++) { + /* Construct list of pointers to DCT blocks belonging to this MCU */ + blkn = 0; /* index of current DCT block within MCU */ + for (ci = 0; ci < cinfo->comps_in_scan; ci++) { + compptr = cinfo->cur_comp_info[ci]; + start_col = MCU_col_num * compptr->MCU_width; + blockcnt = (MCU_col_num < last_MCU_col) ? compptr->MCU_width + : compptr->last_col_width; + for (yindex = 0; yindex < compptr->MCU_height; yindex++) { + if (coef->iMCU_row_num < last_iMCU_row || + yindex+yoffset < compptr->last_row_height) { + /* Fill in pointers to real blocks in this row */ + buffer_ptr = buffer[ci][yindex+yoffset] + start_col; + for (xindex = 0; xindex < blockcnt; xindex++) + MCU_buffer[blkn++] = buffer_ptr++; + } else { + /* At bottom of image, need a whole row of dummy blocks */ + xindex = 0; + } + /* Fill in any dummy blocks needed in this row. + * Dummy blocks are filled in the same way as in jccoefct.c: + * all zeroes in the AC entries, DC entries equal to previous + * block's DC value. The init routine has already zeroed the + * AC entries, so we need only set the DC entries correctly. + */ + for (; xindex < compptr->MCU_width; xindex++) { + MCU_buffer[blkn] = coef->dummy_buffer[blkn]; + MCU_buffer[blkn][0][0] = MCU_buffer[blkn-1][0][0]; + blkn++; + } + } + } + /* Try to write the MCU. */ + if (! (*cinfo->entropy->encode_mcu) (cinfo, MCU_buffer)) { + /* Suspension forced; update state counters and exit */ + coef->MCU_vert_offset = yoffset; + coef->mcu_ctr = MCU_col_num; + return FALSE; + } + } + /* Completed an MCU row, but perhaps not an iMCU row */ + coef->mcu_ctr = 0; + } + /* Completed the iMCU row, advance counters for next one */ + coef->iMCU_row_num++; + start_iMCU_row(cinfo); + return TRUE; +} + + +/* + * Initialize coefficient buffer controller. + * + * Each passed coefficient array must be the right size for that + * coefficient: width_in_blocks wide and height_in_blocks high, + * with unitheight at least v_samp_factor. + */ + +LOCAL(void) +transencode_coef_controller (j_compress_ptr cinfo, + jvirt_barray_ptr * coef_arrays) +{ + my_coef_ptr coef; + JBLOCKROW buffer; + int i; + + coef = (my_coef_ptr) + (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, + SIZEOF(my_coef_controller)); + cinfo->coef = (struct jpeg_c_coef_controller *) coef; + coef->pub.start_pass = start_pass_coef; + coef->pub.compress_data = compress_output; + + /* Save pointer to virtual arrays */ + coef->whole_image = coef_arrays; + + /* Allocate and pre-zero space for dummy DCT blocks. */ + buffer = (JBLOCKROW) + (*cinfo->mem->alloc_large) ((j_common_ptr) cinfo, JPOOL_IMAGE, + C_MAX_BLOCKS_IN_MCU * SIZEOF(JBLOCK)); + FMEMZERO((void FAR *) buffer, C_MAX_BLOCKS_IN_MCU * SIZEOF(JBLOCK)); + for (i = 0; i < C_MAX_BLOCKS_IN_MCU; i++) { + coef->dummy_buffer[i] = buffer + i; + } +} diff --git a/jpeg/jdapimin.c b/jpeg/jdapimin.c new file mode 100644 index 0000000..7f1ce4c --- /dev/null +++ b/jpeg/jdapimin.c @@ -0,0 +1,396 @@ +/* + * jdapimin.c + * + * Copyright (C) 1994-1998, Thomas G. Lane. + * Modified 2009 by Guido Vollbeding. + * This file is part of the Independent JPEG Group's software. + * For conditions of distribution and use, see the accompanying README file. + * + * This file contains application interface code for the decompression half + * of the JPEG library. These are the "minimum" API routines that may be + * needed in either the normal full-decompression case or the + * transcoding-only case. + * + * Most of the routines intended to be called directly by an application + * are in this file or in jdapistd.c. But also see jcomapi.c for routines + * shared by compression and decompression, and jdtrans.c for the transcoding + * case. + */ + +#define JPEG_INTERNALS +#include "jinclude.h" +#include "jpeglib.h" + + +/* + * Initialization of a JPEG decompression object. + * The error manager must already be set up (in case memory manager fails). + */ + +GLOBAL(void) +jpeg_CreateDecompress (j_decompress_ptr cinfo, int version, size_t structsize) +{ + int i; + + /* Guard against version mismatches between library and caller. */ + cinfo->mem = NULL; /* so jpeg_destroy knows mem mgr not called */ + if (version != JPEG_LIB_VERSION) + ERREXIT2(cinfo, JERR_BAD_LIB_VERSION, JPEG_LIB_VERSION, version); + if (structsize != SIZEOF(struct jpeg_decompress_struct)) + ERREXIT2(cinfo, JERR_BAD_STRUCT_SIZE, + (int) SIZEOF(struct jpeg_decompress_struct), (int) structsize); + + /* For debugging purposes, we zero the whole master structure. + * But the application has already set the err pointer, and may have set + * client_data, so we have to save and restore those fields. + * Note: if application hasn't set client_data, tools like Purify may + * complain here. + */ + { + struct jpeg_error_mgr * err = cinfo->err; + void * client_data = cinfo->client_data; /* ignore Purify complaint here */ + MEMZERO(cinfo, SIZEOF(struct jpeg_decompress_struct)); + cinfo->err = err; + cinfo->client_data = client_data; + } + cinfo->is_decompressor = TRUE; + + /* Initialize a memory manager instance for this object */ + jinit_memory_mgr((j_common_ptr) cinfo); + + /* Zero out pointers to permanent structures. */ + cinfo->progress = NULL; + cinfo->src = NULL; + + for (i = 0; i < NUM_QUANT_TBLS; i++) + cinfo->quant_tbl_ptrs[i] = NULL; + + for (i = 0; i < NUM_HUFF_TBLS; i++) { + cinfo->dc_huff_tbl_ptrs[i] = NULL; + cinfo->ac_huff_tbl_ptrs[i] = NULL; + } + + /* Initialize marker processor so application can override methods + * for COM, APPn markers before calling jpeg_read_header. + */ + cinfo->marker_list = NULL; + jinit_marker_reader(cinfo); + + /* And initialize the overall input controller. */ + jinit_input_controller(cinfo); + + /* OK, I'm ready */ + cinfo->global_state = DSTATE_START; +} + + +/* + * Destruction of a JPEG decompression object + */ + +GLOBAL(void) +jpeg_destroy_decompress (j_decompress_ptr cinfo) +{ + jpeg_destroy((j_common_ptr) cinfo); /* use common routine */ +} + + +/* + * Abort processing of a JPEG decompression operation, + * but don't destroy the object itself. + */ + +GLOBAL(void) +jpeg_abort_decompress (j_decompress_ptr cinfo) +{ + jpeg_abort((j_common_ptr) cinfo); /* use common routine */ +} + + +/* + * Set default decompression parameters. + */ + +LOCAL(void) +default_decompress_parms (j_decompress_ptr cinfo) +{ + /* Guess the input colorspace, and set output colorspace accordingly. */ + /* (Wish JPEG committee had provided a real way to specify this...) */ + /* Note application may override our guesses. */ + switch (cinfo->num_components) { + case 1: + cinfo->jpeg_color_space = JCS_GRAYSCALE; + cinfo->out_color_space = JCS_GRAYSCALE; + break; + + case 3: + if (cinfo->saw_JFIF_marker) { + cinfo->jpeg_color_space = JCS_YCbCr; /* JFIF implies YCbCr */ + } else if (cinfo->saw_Adobe_marker) { + switch (cinfo->Adobe_transform) { + case 0: + cinfo->jpeg_color_space = JCS_RGB; + break; + case 1: + cinfo->jpeg_color_space = JCS_YCbCr; + break; + default: + WARNMS1(cinfo, JWRN_ADOBE_XFORM, cinfo->Adobe_transform); + cinfo->jpeg_color_space = JCS_YCbCr; /* assume it's YCbCr */ + break; + } + } else { + /* Saw no special markers, try to guess from the component IDs */ + int cid0 = cinfo->comp_info[0].component_id; + int cid1 = cinfo->comp_info[1].component_id; + int cid2 = cinfo->comp_info[2].component_id; + + if (cid0 == 1 && cid1 == 2 && cid2 == 3) + cinfo->jpeg_color_space = JCS_YCbCr; /* assume JFIF w/out marker */ + else if (cid0 == 82 && cid1 == 71 && cid2 == 66) + cinfo->jpeg_color_space = JCS_RGB; /* ASCII 'R', 'G', 'B' */ + else { + TRACEMS3(cinfo, 1, JTRC_UNKNOWN_IDS, cid0, cid1, cid2); + cinfo->jpeg_color_space = JCS_YCbCr; /* assume it's YCbCr */ + } + } + /* Always guess RGB is proper output colorspace. */ + cinfo->out_color_space = JCS_RGB; + break; + + case 4: + if (cinfo->saw_Adobe_marker) { + switch (cinfo->Adobe_transform) { + case 0: + cinfo->jpeg_color_space = JCS_CMYK; + break; + case 2: + cinfo->jpeg_color_space = JCS_YCCK; + break; + default: + WARNMS1(cinfo, JWRN_ADOBE_XFORM, cinfo->Adobe_transform); + cinfo->jpeg_color_space = JCS_YCCK; /* assume it's YCCK */ + break; + } + } else { + /* No special markers, assume straight CMYK. */ + cinfo->jpeg_color_space = JCS_CMYK; + } + cinfo->out_color_space = JCS_CMYK; + break; + + default: + cinfo->jpeg_color_space = JCS_UNKNOWN; + cinfo->out_color_space = JCS_UNKNOWN; + break; + } + + /* Set defaults for other decompression parameters. */ + cinfo->scale_num = cinfo->block_size; /* 1:1 scaling */ + cinfo->scale_denom = cinfo->block_size; + cinfo->output_gamma = 1.0; + cinfo->buffered_image = FALSE; + cinfo->raw_data_out = FALSE; + cinfo->dct_method = JDCT_DEFAULT; + cinfo->do_fancy_upsampling = TRUE; + cinfo->do_block_smoothing = TRUE; + cinfo->quantize_colors = FALSE; + /* We set these in case application only sets quantize_colors. */ + cinfo->dither_mode = JDITHER_FS; +#ifdef QUANT_2PASS_SUPPORTED + cinfo->two_pass_quantize = TRUE; +#else + cinfo->two_pass_quantize = FALSE; +#endif + cinfo->desired_number_of_colors = 256; + cinfo->colormap = NULL; + /* Initialize for no mode change in buffered-image mode. */ + cinfo->enable_1pass_quant = FALSE; + cinfo->enable_external_quant = FALSE; + cinfo->enable_2pass_quant = FALSE; +} + + +/* + * Decompression startup: read start of JPEG datastream to see what's there. + * Need only initialize JPEG object and supply a data source before calling. + * + * This routine will read as far as the first SOS marker (ie, actual start of + * compressed data), and will save all tables and parameters in the JPEG + * object. It will also initialize the decompression parameters to default + * values, and finally return JPEG_HEADER_OK. On return, the application may + * adjust the decompression parameters and then call jpeg_start_decompress. + * (Or, if the application only wanted to determine the image parameters, + * the data need not be decompressed. In that case, call jpeg_abort or + * jpeg_destroy to release any temporary space.) + * If an abbreviated (tables only) datastream is presented, the routine will + * return JPEG_HEADER_TABLES_ONLY upon reaching EOI. The application may then + * re-use the JPEG object to read the abbreviated image datastream(s). + * It is unnecessary (but OK) to call jpeg_abort in this case. + * The JPEG_SUSPENDED return code only occurs if the data source module + * requests suspension of the decompressor. In this case the application + * should load more source data and then re-call jpeg_read_header to resume + * processing. + * If a non-suspending data source is used and require_image is TRUE, then the + * return code need not be inspected since only JPEG_HEADER_OK is possible. + * + * This routine is now just a front end to jpeg_consume_input, with some + * extra error checking. + */ + +GLOBAL(int) +jpeg_read_header (j_decompress_ptr cinfo, boolean require_image) +{ + int retcode; + + if (cinfo->global_state != DSTATE_START && + cinfo->global_state != DSTATE_INHEADER) + ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state); + + retcode = jpeg_consume_input(cinfo); + + switch (retcode) { + case JPEG_REACHED_SOS: + retcode = JPEG_HEADER_OK; + break; + case JPEG_REACHED_EOI: + if (require_image) /* Complain if application wanted an image */ + ERREXIT(cinfo, JERR_NO_IMAGE); + /* Reset to start state; it would be safer to require the application to + * call jpeg_abort, but we can't change it now for compatibility reasons. + * A side effect is to free any temporary memory (there shouldn't be any). + */ + jpeg_abort((j_common_ptr) cinfo); /* sets state = DSTATE_START */ + retcode = JPEG_HEADER_TABLES_ONLY; + break; + case JPEG_SUSPENDED: + /* no work */ + break; + } + + return retcode; +} + + +/* + * Consume data in advance of what the decompressor requires. + * This can be called at any time once the decompressor object has + * been created and a data source has been set up. + * + * This routine is essentially a state machine that handles a couple + * of critical state-transition actions, namely initial setup and + * transition from header scanning to ready-for-start_decompress. + * All the actual input is done via the input controller's consume_input + * method. + */ + +GLOBAL(int) +jpeg_consume_input (j_decompress_ptr cinfo) +{ + int retcode = JPEG_SUSPENDED; + + /* NB: every possible DSTATE value should be listed in this switch */ + switch (cinfo->global_state) { + case DSTATE_START: + /* Start-of-datastream actions: reset appropriate modules */ + (*cinfo->inputctl->reset_input_controller) (cinfo); + /* Initialize application's data source module */ + (*cinfo->src->init_source) (cinfo); + cinfo->global_state = DSTATE_INHEADER; + /*FALLTHROUGH*/ + case DSTATE_INHEADER: + retcode = (*cinfo->inputctl->consume_input) (cinfo); + if (retcode == JPEG_REACHED_SOS) { /* Found SOS, prepare to decompress */ + /* Set up default parameters based on header data */ + default_decompress_parms(cinfo); + /* Set global state: ready for start_decompress */ + cinfo->global_state = DSTATE_READY; + } + break; + case DSTATE_READY: + /* Can't advance past first SOS until start_decompress is called */ + retcode = JPEG_REACHED_SOS; + break; + case DSTATE_PRELOAD: + case DSTATE_PRESCAN: + case DSTATE_SCANNING: + case DSTATE_RAW_OK: + case DSTATE_BUFIMAGE: + case DSTATE_BUFPOST: + case DSTATE_STOPPING: + retcode = (*cinfo->inputctl->consume_input) (cinfo); + break; + default: + ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state); + } + return retcode; +} + + +/* + * Have we finished reading the input file? + */ + +GLOBAL(boolean) +jpeg_input_complete (j_decompress_ptr cinfo) +{ + /* Check for valid jpeg object */ + if (cinfo->global_state < DSTATE_START || + cinfo->global_state > DSTATE_STOPPING) + ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state); + return cinfo->inputctl->eoi_reached; +} + + +/* + * Is there more than one scan? + */ + +GLOBAL(boolean) +jpeg_has_multiple_scans (j_decompress_ptr cinfo) +{ + /* Only valid after jpeg_read_header completes */ + if (cinfo->global_state < DSTATE_READY || + cinfo->global_state > DSTATE_STOPPING) + ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state); + return cinfo->inputctl->has_multiple_scans; +} + + +/* + * Finish JPEG decompression. + * + * This will normally just verify the file trailer and release temp storage. + * + * Returns FALSE if suspended. The return value need be inspected only if + * a suspending data source is used. + */ + +GLOBAL(boolean) +jpeg_finish_decompress (j_decompress_ptr cinfo) +{ + if ((cinfo->global_state == DSTATE_SCANNING || + cinfo->global_state == DSTATE_RAW_OK) && ! cinfo->buffered_image) { + /* Terminate final pass of non-buffered mode */ + if (cinfo->output_scanline < cinfo->output_height) + ERREXIT(cinfo, JERR_TOO_LITTLE_DATA); + (*cinfo->master->finish_output_pass) (cinfo); + cinfo->global_state = DSTATE_STOPPING; + } else if (cinfo->global_state == DSTATE_BUFIMAGE) { + /* Finishing after a buffered-image operation */ + cinfo->global_state = DSTATE_STOPPING; + } else if (cinfo->global_state != DSTATE_STOPPING) { + /* STOPPING = repeat call after a suspension, anything else is error */ + ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state); + } + /* Read until EOI */ + while (! cinfo->inputctl->eoi_reached) { + if ((*cinfo->inputctl->consume_input) (cinfo) == JPEG_SUSPENDED) + return FALSE; /* Suspend, come back later */ + } + /* Do final cleanup */ + (*cinfo->src->term_source) (cinfo); + /* We can use jpeg_abort to release memory and reset global_state */ + jpeg_abort((j_common_ptr) cinfo); + return TRUE; +} diff --git a/jpeg/jdapistd.c b/jpeg/jdapistd.c new file mode 100644 index 0000000..9d74537 --- /dev/null +++ b/jpeg/jdapistd.c @@ -0,0 +1,275 @@ +/* + * jdapistd.c + * + * Copyright (C) 1994-1996, Thomas G. Lane. + * This file is part of the Independent JPEG Group's software. + * For conditions of distribution and use, see the accompanying README file. + * + * This file contains application interface code for the decompression half + * of the JPEG library. These are the "standard" API routines that are + * used in the normal full-decompression case. They are not used by a + * transcoding-only application. Note that if an application links in + * jpeg_start_decompress, it will end up linking in the entire decompressor. + * We thus must separate this file from jdapimin.c to avoid linking the + * whole decompression library into a transcoder. + */ + +#define JPEG_INTERNALS +#include "jinclude.h" +#include "jpeglib.h" + + +/* Forward declarations */ +LOCAL(boolean) output_pass_setup JPP((j_decompress_ptr cinfo)); + + +/* + * Decompression initialization. + * jpeg_read_header must be completed before calling this. + * + * If a multipass operating mode was selected, this will do all but the + * last pass, and thus may take a great deal of time. + * + * Returns FALSE if suspended. The return value need be inspected only if + * a suspending data source is used. + */ + +GLOBAL(boolean) +jpeg_start_decompress (j_decompress_ptr cinfo) +{ + if (cinfo->global_state == DSTATE_READY) { + /* First call: initialize master control, select active modules */ + jinit_master_decompress(cinfo); + if (cinfo->buffered_image) { + /* No more work here; expecting jpeg_start_output next */ + cinfo->global_state = DSTATE_BUFIMAGE; + return TRUE; + } + cinfo->global_state = DSTATE_PRELOAD; + } + if (cinfo->global_state == DSTATE_PRELOAD) { + /* If file has multiple scans, absorb them all into the coef buffer */ + if (cinfo->inputctl->has_multiple_scans) { +#ifdef D_MULTISCAN_FILES_SUPPORTED + for (;;) { + int retcode; + /* Call progress monitor hook if present */ + if (cinfo->progress != NULL) + (*cinfo->progress->progress_monitor) ((j_common_ptr) cinfo); + /* Absorb some more input */ + retcode = (*cinfo->inputctl->consume_input) (cinfo); + if (retcode == JPEG_SUSPENDED) + return FALSE; + if (retcode == JPEG_REACHED_EOI) + break; + /* Advance progress counter if appropriate */ + if (cinfo->progress != NULL && + (retcode == JPEG_ROW_COMPLETED || retcode == JPEG_REACHED_SOS)) { + if (++cinfo->progress->pass_counter >= cinfo->progress->pass_limit) { + /* jdmaster underestimated number of scans; ratchet up one scan */ + cinfo->progress->pass_limit += (long) cinfo->total_iMCU_rows; + } + } + } +#else + ERREXIT(cinfo, JERR_NOT_COMPILED); +#endif /* D_MULTISCAN_FILES_SUPPORTED */ + } + cinfo->output_scan_number = cinfo->input_scan_number; + } else if (cinfo->global_state != DSTATE_PRESCAN) + ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state); + /* Perform any dummy output passes, and set up for the final pass */ + return output_pass_setup(cinfo); +} + + +/* + * Set up for an output pass, and perform any dummy pass(es) needed. + * Common subroutine for jpeg_start_decompress and jpeg_start_output. + * Entry: global_state = DSTATE_PRESCAN only if previously suspended. + * Exit: If done, returns TRUE and sets global_state for proper output mode. + * If suspended, returns FALSE and sets global_state = DSTATE_PRESCAN. + */ + +LOCAL(boolean) +output_pass_setup (j_decompress_ptr cinfo) +{ + if (cinfo->global_state != DSTATE_PRESCAN) { + /* First call: do pass setup */ + (*cinfo->master->prepare_for_output_pass) (cinfo); + cinfo->output_scanline = 0; + cinfo->global_state = DSTATE_PRESCAN; + } + /* Loop over any required dummy passes */ + while (cinfo->master->is_dummy_pass) { +#ifdef QUANT_2PASS_SUPPORTED + /* Crank through the dummy pass */ + while (cinfo->output_scanline < cinfo->output_height) { + JDIMENSION last_scanline; + /* Call progress monitor hook if present */ + if (cinfo->progress != NULL) { + cinfo->progress->pass_counter = (long) cinfo->output_scanline; + cinfo->progress->pass_limit = (long) cinfo->output_height; + (*cinfo->progress->progress_monitor) ((j_common_ptr) cinfo); + } + /* Process some data */ + last_scanline = cinfo->output_scanline; + (*cinfo->main->process_data) (cinfo, (JSAMPARRAY) NULL, + &cinfo->output_scanline, (JDIMENSION) 0); + if (cinfo->output_scanline == last_scanline) + return FALSE; /* No progress made, must suspend */ + } + /* Finish up dummy pass, and set up for another one */ + (*cinfo->master->finish_output_pass) (cinfo); + (*cinfo->master->prepare_for_output_pass) (cinfo); + cinfo->output_scanline = 0; +#else + ERREXIT(cinfo, JERR_NOT_COMPILED); +#endif /* QUANT_2PASS_SUPPORTED */ + } + /* Ready for application to drive output pass through + * jpeg_read_scanlines or jpeg_read_raw_data. + */ + cinfo->global_state = cinfo->raw_data_out ? DSTATE_RAW_OK : DSTATE_SCANNING; + return TRUE; +} + + +/* + * Read some scanlines of data from the JPEG decompressor. + * + * The return value will be the number of lines actually read. + * This may be less than the number requested in several cases, + * including bottom of image, data source suspension, and operating + * modes that emit multiple scanlines at a time. + * + * Note: we warn about excess calls to jpeg_read_scanlines() since + * this likely signals an application programmer error. However, + * an oversize buffer (max_lines > scanlines remaining) is not an error. + */ + +GLOBAL(JDIMENSION) +jpeg_read_scanlines (j_decompress_ptr cinfo, JSAMPARRAY scanlines, + JDIMENSION max_lines) +{ + JDIMENSION row_ctr; + + if (cinfo->global_state != DSTATE_SCANNING) + ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state); + if (cinfo->output_scanline >= cinfo->output_height) { + WARNMS(cinfo, JWRN_TOO_MUCH_DATA); + return 0; + } + + /* Call progress monitor hook if present */ + if (cinfo->progress != NULL) { + cinfo->progress->pass_counter = (long) cinfo->output_scanline; + cinfo->progress->pass_limit = (long) cinfo->output_height; + (*cinfo->progress->progress_monitor) ((j_common_ptr) cinfo); + } + + /* Process some data */ + row_ctr = 0; + (*cinfo->main->process_data) (cinfo, scanlines, &row_ctr, max_lines); + cinfo->output_scanline += row_ctr; + return row_ctr; +} + + +/* + * Alternate entry point to read raw data. + * Processes exactly one iMCU row per call, unless suspended. + */ + +GLOBAL(JDIMENSION) +jpeg_read_raw_data (j_decompress_ptr cinfo, JSAMPIMAGE data, + JDIMENSION max_lines) +{ + JDIMENSION lines_per_iMCU_row; + + if (cinfo->global_state != DSTATE_RAW_OK) + ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state); + if (cinfo->output_scanline >= cinfo->output_height) { + WARNMS(cinfo, JWRN_TOO_MUCH_DATA); + return 0; + } + + /* Call progress monitor hook if present */ + if (cinfo->progress != NULL) { + cinfo->progress->pass_counter = (long) cinfo->output_scanline; + cinfo->progress->pass_limit = (long) cinfo->output_height; + (*cinfo->progress->progress_monitor) ((j_common_ptr) cinfo); + } + + /* Verify that at least one iMCU row can be returned. */ + lines_per_iMCU_row = cinfo->max_v_samp_factor * cinfo->min_DCT_v_scaled_size; + if (max_lines < lines_per_iMCU_row) + ERREXIT(cinfo, JERR_BUFFER_SIZE); + + /* Decompress directly into user's buffer. */ + if (! (*cinfo->coef->decompress_data) (cinfo, data)) + return 0; /* suspension forced, can do nothing more */ + + /* OK, we processed one iMCU row. */ + cinfo->output_scanline += lines_per_iMCU_row; + return lines_per_iMCU_row; +} + + +/* Additional entry points for buffered-image mode. */ + +#ifdef D_MULTISCAN_FILES_SUPPORTED + +/* + * Initialize for an output pass in buffered-image mode. + */ + +GLOBAL(boolean) +jpeg_start_output (j_decompress_ptr cinfo, int scan_number) +{ + if (cinfo->global_state != DSTATE_BUFIMAGE && + cinfo->global_state != DSTATE_PRESCAN) + ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state); + /* Limit scan number to valid range */ + if (scan_number <= 0) + scan_number = 1; + if (cinfo->inputctl->eoi_reached && + scan_number > cinfo->input_scan_number) + scan_number = cinfo->input_scan_number; + cinfo->output_scan_number = scan_number; + /* Perform any dummy output passes, and set up for the real pass */ + return output_pass_setup(cinfo); +} + + +/* + * Finish up after an output pass in buffered-image mode. + * + * Returns FALSE if suspended. The return value need be inspected only if + * a suspending data source is used. + */ + +GLOBAL(boolean) +jpeg_finish_output (j_decompress_ptr cinfo) +{ + if ((cinfo->global_state == DSTATE_SCANNING || + cinfo->global_state == DSTATE_RAW_OK) && cinfo->buffered_image) { + /* Terminate this pass. */ + /* We do not require the whole pass to have been completed. */ + (*cinfo->master->finish_output_pass) (cinfo); + cinfo->global_state = DSTATE_BUFPOST; + } else if (cinfo->global_state != DSTATE_BUFPOST) { + /* BUFPOST = repeat call after a suspension, anything else is error */ + ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state); + } + /* Read markers looking for SOS or EOI */ + while (cinfo->input_scan_number <= cinfo->output_scan_number && + ! cinfo->inputctl->eoi_reached) { + if ((*cinfo->inputctl->consume_input) (cinfo) == JPEG_SUSPENDED) + return FALSE; /* Suspend, come back later */ + } + cinfo->global_state = DSTATE_BUFIMAGE; + return TRUE; +} + +#endif /* D_MULTISCAN_FILES_SUPPORTED */ diff --git a/jpeg/jdarith.c b/jpeg/jdarith.c new file mode 100644 index 0000000..092f8af --- /dev/null +++ b/jpeg/jdarith.c @@ -0,0 +1,776 @@ +/* + * jdarith.c + * + * Developed 1997-2011 by Guido Vollbeding. + * This file is part of the Independent JPEG Group's software. + * For conditions of distribution and use, see the accompanying README file. + * + * This file contains portable arithmetic entropy decoding routines for JPEG + * (implementing the ISO/IEC IS 10918-1 and CCITT Recommendation ITU-T T.81). + * + * Both sequential and progressive modes are supported in this single module. + * + * Suspension is not currently supported in this module. + */ + +#define JPEG_INTERNALS +#include "jinclude.h" +#include "jpeglib.h" + + +/* Expanded entropy decoder object for arithmetic decoding. */ + +typedef struct { + struct jpeg_entropy_decoder pub; /* public fields */ + + INT32 c; /* C register, base of coding interval + input bit buffer */ + INT32 a; /* A register, normalized size of coding interval */ + int ct; /* bit shift counter, # of bits left in bit buffer part of C */ + /* init: ct = -16 */ + /* run: ct = 0..7 */ + /* error: ct = -1 */ + int last_dc_val[MAX_COMPS_IN_SCAN]; /* last DC coef for each component */ + int dc_context[MAX_COMPS_IN_SCAN]; /* context index for DC conditioning */ + + unsigned int restarts_to_go; /* MCUs left in this restart interval */ + + /* Pointers to statistics areas (these workspaces have image lifespan) */ + unsigned char * dc_stats[NUM_ARITH_TBLS]; + unsigned char * ac_stats[NUM_ARITH_TBLS]; + + /* Statistics bin for coding with fixed probability 0.5 */ + unsigned char fixed_bin[4]; +} arith_entropy_decoder; + +typedef arith_entropy_decoder * arith_entropy_ptr; + +/* The following two definitions specify the allocation chunk size + * for the statistics area. + * According to sections F.1.4.4.1.3 and F.1.4.4.2, we need at least + * 49 statistics bins for DC, and 245 statistics bins for AC coding. + * + * We use a compact representation with 1 byte per statistics bin, + * thus the numbers directly represent byte sizes. + * This 1 byte per statistics bin contains the meaning of the MPS + * (more probable symbol) in the highest bit (mask 0x80), and the + * index into the probability estimation state machine table + * in the lower bits (mask 0x7F). + */ + +#define DC_STAT_BINS 64 +#define AC_STAT_BINS 256 + + +LOCAL(int) +get_byte (j_decompress_ptr cinfo) +/* Read next input byte; we do not support suspension in this module. */ +{ + struct jpeg_source_mgr * src = cinfo->src; + + if (src->bytes_in_buffer == 0) + if (! (*src->fill_input_buffer) (cinfo)) + ERREXIT(cinfo, JERR_CANT_SUSPEND); + src->bytes_in_buffer--; + return GETJOCTET(*src->next_input_byte++); +} + + +/* + * The core arithmetic decoding routine (common in JPEG and JBIG). + * This needs to go as fast as possible. + * Machine-dependent optimization facilities + * are not utilized in this portable implementation. + * However, this code should be fairly efficient and + * may be a good base for further optimizations anyway. + * + * Return value is 0 or 1 (binary decision). + * + * Note: I've changed the handling of the code base & bit + * buffer register C compared to other implementations + * based on the standards layout & procedures. + * While it also contains both the actual base of the + * coding interval (16 bits) and the next-bits buffer, + * the cut-point between these two parts is floating + * (instead of fixed) with the bit shift counter CT. + * Thus, we also need only one (variable instead of + * fixed size) shift for the LPS/MPS decision, and + * we can get away with any renormalization update + * of C (except for new data insertion, of course). + * + * I've also introduced a new scheme for accessing + * the probability estimation state machine table, + * derived from Markus Kuhn's JBIG implementation. + */ + +LOCAL(int) +arith_decode (j_decompress_ptr cinfo, unsigned char *st) +{ + register arith_entropy_ptr e = (arith_entropy_ptr) cinfo->entropy; + register unsigned char nl, nm; + register INT32 qe, temp; + register int sv, data; + + /* Renormalization & data input per section D.2.6 */ + while (e->a < 0x8000L) { + if (--e->ct < 0) { + /* Need to fetch next data byte */ + if (cinfo->unread_marker) + data = 0; /* stuff zero data */ + else { + data = get_byte(cinfo); /* read next input byte */ + if (data == 0xFF) { /* zero stuff or marker code */ + do data = get_byte(cinfo); + while (data == 0xFF); /* swallow extra 0xFF bytes */ + if (data == 0) + data = 0xFF; /* discard stuffed zero byte */ + else { + /* Note: Different from the Huffman decoder, hitting + * a marker while processing the compressed data + * segment is legal in arithmetic coding. + * The convention is to supply zero data + * then until decoding is complete. + */ + cinfo->unread_marker = data; + data = 0; + } + } + } + e->c = (e->c << 8) | data; /* insert data into C register */ + if ((e->ct += 8) < 0) /* update bit shift counter */ + /* Need more initial bytes */ + if (++e->ct == 0) + /* Got 2 initial bytes -> re-init A and exit loop */ + e->a = 0x8000L; /* => e->a = 0x10000L after loop exit */ + } + e->a <<= 1; + } + + /* Fetch values from our compact representation of Table D.3(D.2): + * Qe values and probability estimation state machine + */ + sv = *st; + qe = jpeg_aritab[sv & 0x7F]; /* => Qe_Value */ + nl = qe & 0xFF; qe >>= 8; /* Next_Index_LPS + Switch_MPS */ + nm = qe & 0xFF; qe >>= 8; /* Next_Index_MPS */ + + /* Decode & estimation procedures per sections D.2.4 & D.2.5 */ + temp = e->a - qe; + e->a = temp; + temp <<= e->ct; + if (e->c >= temp) { + e->c -= temp; + /* Conditional LPS (less probable symbol) exchange */ + if (e->a < qe) { + e->a = qe; + *st = (sv & 0x80) ^ nm; /* Estimate_after_MPS */ + } else { + e->a = qe; + *st = (sv & 0x80) ^ nl; /* Estimate_after_LPS */ + sv ^= 0x80; /* Exchange LPS/MPS */ + } + } else if (e->a < 0x8000L) { + /* Conditional MPS (more probable symbol) exchange */ + if (e->a < qe) { + *st = (sv & 0x80) ^ nl; /* Estimate_after_LPS */ + sv ^= 0x80; /* Exchange LPS/MPS */ + } else { + *st = (sv & 0x80) ^ nm; /* Estimate_after_MPS */ + } + } + + return sv >> 7; +} + + +/* + * Check for a restart marker & resynchronize decoder. + */ + +LOCAL(void) +process_restart (j_decompress_ptr cinfo) +{ + arith_entropy_ptr entropy = (arith_entropy_ptr) cinfo->entropy; + int ci; + jpeg_component_info * compptr; + + /* Advance past the RSTn marker */ + if (! (*cinfo->marker->read_restart_marker) (cinfo)) + ERREXIT(cinfo, JERR_CANT_SUSPEND); + + /* Re-initialize statistics areas */ + for (ci = 0; ci < cinfo->comps_in_scan; ci++) { + compptr = cinfo->cur_comp_info[ci]; + if (! cinfo->progressive_mode || (cinfo->Ss == 0 && cinfo->Ah == 0)) { + MEMZERO(entropy->dc_stats[compptr->dc_tbl_no], DC_STAT_BINS); + /* Reset DC predictions to 0 */ + entropy->last_dc_val[ci] = 0; + entropy->dc_context[ci] = 0; + } + if ((! cinfo->progressive_mode && cinfo->lim_Se) || + (cinfo->progressive_mode && cinfo->Ss)) { + MEMZERO(entropy->ac_stats[compptr->ac_tbl_no], AC_STAT_BINS); + } + } + + /* Reset arithmetic decoding variables */ + entropy->c = 0; + entropy->a = 0; + entropy->ct = -16; /* force reading 2 initial bytes to fill C */ + + /* Reset restart counter */ + entropy->restarts_to_go = cinfo->restart_interval; +} + + +/* + * Arithmetic MCU decoding. + * Each of these routines decodes and returns one MCU's worth of + * arithmetic-compressed coefficients. + * The coefficients are reordered from zigzag order into natural array order, + * but are not dequantized. + * + * The i'th block of the MCU is stored into the block pointed to by + * MCU_data[i]. WE ASSUME THIS AREA IS INITIALLY ZEROED BY THE CALLER. + */ + +/* + * MCU decoding for DC initial scan (either spectral selection, + * or first pass of successive approximation). + */ + +METHODDEF(boolean) +decode_mcu_DC_first (j_decompress_ptr cinfo, JBLOCKROW *MCU_data) +{ + arith_entropy_ptr entropy = (arith_entropy_ptr) cinfo->entropy; + JBLOCKROW block; + unsigned char *st; + int blkn, ci, tbl, sign; + int v, m; + + /* Process restart marker if needed */ + if (cinfo->restart_interval) { + if (entropy->restarts_to_go == 0) + process_restart(cinfo); + entropy->restarts_to_go--; + } + + if (entropy->ct == -1) return TRUE; /* if error do nothing */ + + /* Outer loop handles each block in the MCU */ + + for (blkn = 0; blkn < cinfo->blocks_in_MCU; blkn++) { + block = MCU_data[blkn]; + ci = cinfo->MCU_membership[blkn]; + tbl = cinfo->cur_comp_info[ci]->dc_tbl_no; + + /* Sections F.2.4.1 & F.1.4.4.1: Decoding of DC coefficients */ + + /* Table F.4: Point to statistics bin S0 for DC coefficient coding */ + st = entropy->dc_stats[tbl] + entropy->dc_context[ci]; + + /* Figure F.19: Decode_DC_DIFF */ + if (arith_decode(cinfo, st) == 0) + entropy->dc_context[ci] = 0; + else { + /* Figure F.21: Decoding nonzero value v */ + /* Figure F.22: Decoding the sign of v */ + sign = arith_decode(cinfo, st + 1); + st += 2; st += sign; + /* Figure F.23: Decoding the magnitude category of v */ + if ((m = arith_decode(cinfo, st)) != 0) { + st = entropy->dc_stats[tbl] + 20; /* Table F.4: X1 = 20 */ + while (arith_decode(cinfo, st)) { + if ((m <<= 1) == 0x8000) { + WARNMS(cinfo, JWRN_ARITH_BAD_CODE); + entropy->ct = -1; /* magnitude overflow */ + return TRUE; + } + st += 1; + } + } + /* Section F.1.4.4.1.2: Establish dc_context conditioning category */ + if (m < (int) ((1L << cinfo->arith_dc_L[tbl]) >> 1)) + entropy->dc_context[ci] = 0; /* zero diff category */ + else if (m > (int) ((1L << cinfo->arith_dc_U[tbl]) >> 1)) + entropy->dc_context[ci] = 12 + (sign * 4); /* large diff category */ + else + entropy->dc_context[ci] = 4 + (sign * 4); /* small diff category */ + v = m; + /* Figure F.24: Decoding the magnitude bit pattern of v */ + st += 14; + while (m >>= 1) + if (arith_decode(cinfo, st)) v |= m; + v += 1; if (sign) v = -v; + entropy->last_dc_val[ci] += v; + } + + /* Scale and output the DC coefficient (assumes jpeg_natural_order[0]=0) */ + (*block)[0] = (JCOEF) (entropy->last_dc_val[ci] << cinfo->Al); + } + + return TRUE; +} + + +/* + * MCU decoding for AC initial scan (either spectral selection, + * or first pass of successive approximation). + */ + +METHODDEF(boolean) +decode_mcu_AC_first (j_decompress_ptr cinfo, JBLOCKROW *MCU_data) +{ + arith_entropy_ptr entropy = (arith_entropy_ptr) cinfo->entropy; + JBLOCKROW block; + unsigned char *st; + int tbl, sign, k; + int v, m; + const int * natural_order; + + /* Process restart marker if needed */ + if (cinfo->restart_interval) { + if (entropy->restarts_to_go == 0) + process_restart(cinfo); + entropy->restarts_to_go--; + } + + if (entropy->ct == -1) return TRUE; /* if error do nothing */ + + natural_order = cinfo->natural_order; + + /* There is always only one block per MCU */ + block = MCU_data[0]; + tbl = cinfo->cur_comp_info[0]->ac_tbl_no; + + /* Sections F.2.4.2 & F.1.4.4.2: Decoding of AC coefficients */ + + /* Figure F.20: Decode_AC_coefficients */ + for (k = cinfo->Ss; k <= cinfo->Se; k++) { + st = entropy->ac_stats[tbl] + 3 * (k - 1); + if (arith_decode(cinfo, st)) break; /* EOB flag */ + while (arith_decode(cinfo, st + 1) == 0) { + st += 3; k++; + if (k > cinfo->Se) { + WARNMS(cinfo, JWRN_ARITH_BAD_CODE); + entropy->ct = -1; /* spectral overflow */ + return TRUE; + } + } + /* Figure F.21: Decoding nonzero value v */ + /* Figure F.22: Decoding the sign of v */ + sign = arith_decode(cinfo, entropy->fixed_bin); + st += 2; + /* Figure F.23: Decoding the magnitude category of v */ + if ((m = arith_decode(cinfo, st)) != 0) { + if (arith_decode(cinfo, st)) { + m <<= 1; + st = entropy->ac_stats[tbl] + + (k <= cinfo->arith_ac_K[tbl] ? 189 : 217); + while (arith_decode(cinfo, st)) { + if ((m <<= 1) == 0x8000) { + WARNMS(cinfo, JWRN_ARITH_BAD_CODE); + entropy->ct = -1; /* magnitude overflow */ + return TRUE; + } + st += 1; + } + } + } + v = m; + /* Figure F.24: Decoding the magnitude bit pattern of v */ + st += 14; + while (m >>= 1) + if (arith_decode(cinfo, st)) v |= m; + v += 1; if (sign) v = -v; + /* Scale and output coefficient in natural (dezigzagged) order */ + (*block)[natural_order[k]] = (JCOEF) (v << cinfo->Al); + } + + return TRUE; +} + + +/* + * MCU decoding for DC successive approximation refinement scan. + */ + +METHODDEF(boolean) +decode_mcu_DC_refine (j_decompress_ptr cinfo, JBLOCKROW *MCU_data) +{ + arith_entropy_ptr entropy = (arith_entropy_ptr) cinfo->entropy; + unsigned char *st; + int p1, blkn; + + /* Process restart marker if needed */ + if (cinfo->restart_interval) { + if (entropy->restarts_to_go == 0) + process_restart(cinfo); + entropy->restarts_to_go--; + } + + st = entropy->fixed_bin; /* use fixed probability estimation */ + p1 = 1 << cinfo->Al; /* 1 in the bit position being coded */ + + /* Outer loop handles each block in the MCU */ + + for (blkn = 0; blkn < cinfo->blocks_in_MCU; blkn++) { + /* Encoded data is simply the next bit of the two's-complement DC value */ + if (arith_decode(cinfo, st)) + MCU_data[blkn][0][0] |= p1; + } + + return TRUE; +} + + +/* + * MCU decoding for AC successive approximation refinement scan. + */ + +METHODDEF(boolean) +decode_mcu_AC_refine (j_decompress_ptr cinfo, JBLOCKROW *MCU_data) +{ + arith_entropy_ptr entropy = (arith_entropy_ptr) cinfo->entropy; + JBLOCKROW block; + JCOEFPTR thiscoef; + unsigned char *st; + int tbl, k, kex; + int p1, m1; + const int * natural_order; + + /* Process restart marker if needed */ + if (cinfo->restart_interval) { + if (entropy->restarts_to_go == 0) + process_restart(cinfo); + entropy->restarts_to_go--; + } + + if (entropy->ct == -1) return TRUE; /* if error do nothing */ + + natural_order = cinfo->natural_order; + + /* There is always only one block per MCU */ + block = MCU_data[0]; + tbl = cinfo->cur_comp_info[0]->ac_tbl_no; + + p1 = 1 << cinfo->Al; /* 1 in the bit position being coded */ + m1 = (-1) << cinfo->Al; /* -1 in the bit position being coded */ + + /* Establish EOBx (previous stage end-of-block) index */ + for (kex = cinfo->Se; kex > 0; kex--) + if ((*block)[natural_order[kex]]) break; + + for (k = cinfo->Ss; k <= cinfo->Se; k++) { + st = entropy->ac_stats[tbl] + 3 * (k - 1); + if (k > kex) + if (arith_decode(cinfo, st)) break; /* EOB flag */ + for (;;) { + thiscoef = *block + natural_order[k]; + if (*thiscoef) { /* previously nonzero coef */ + if (arith_decode(cinfo, st + 2)) { + if (*thiscoef < 0) + *thiscoef += m1; + else + *thiscoef += p1; + } + break; + } + if (arith_decode(cinfo, st + 1)) { /* newly nonzero coef */ + if (arith_decode(cinfo, entropy->fixed_bin)) + *thiscoef = m1; + else + *thiscoef = p1; + break; + } + st += 3; k++; + if (k > cinfo->Se) { + WARNMS(cinfo, JWRN_ARITH_BAD_CODE); + entropy->ct = -1; /* spectral overflow */ + return TRUE; + } + } + } + + return TRUE; +} + + +/* + * Decode one MCU's worth of arithmetic-compressed coefficients. + */ + +METHODDEF(boolean) +decode_mcu (j_decompress_ptr cinfo, JBLOCKROW *MCU_data) +{ + arith_entropy_ptr entropy = (arith_entropy_ptr) cinfo->entropy; + jpeg_component_info * compptr; + JBLOCKROW block; + unsigned char *st; + int blkn, ci, tbl, sign, k; + int v, m; + const int * natural_order; + + /* Process restart marker if needed */ + if (cinfo->restart_interval) { + if (entropy->restarts_to_go == 0) + process_restart(cinfo); + entropy->restarts_to_go--; + } + + if (entropy->ct == -1) return TRUE; /* if error do nothing */ + + natural_order = cinfo->natural_order; + + /* Outer loop handles each block in the MCU */ + + for (blkn = 0; blkn < cinfo->blocks_in_MCU; blkn++) { + block = MCU_data[blkn]; + ci = cinfo->MCU_membership[blkn]; + compptr = cinfo->cur_comp_info[ci]; + + /* Sections F.2.4.1 & F.1.4.4.1: Decoding of DC coefficients */ + + tbl = compptr->dc_tbl_no; + + /* Table F.4: Point to statistics bin S0 for DC coefficient coding */ + st = entropy->dc_stats[tbl] + entropy->dc_context[ci]; + + /* Figure F.19: Decode_DC_DIFF */ + if (arith_decode(cinfo, st) == 0) + entropy->dc_context[ci] = 0; + else { + /* Figure F.21: Decoding nonzero value v */ + /* Figure F.22: Decoding the sign of v */ + sign = arith_decode(cinfo, st + 1); + st += 2; st += sign; + /* Figure F.23: Decoding the magnitude category of v */ + if ((m = arith_decode(cinfo, st)) != 0) { + st = entropy->dc_stats[tbl] + 20; /* Table F.4: X1 = 20 */ + while (arith_decode(cinfo, st)) { + if ((m <<= 1) == 0x8000) { + WARNMS(cinfo, JWRN_ARITH_BAD_CODE); + entropy->ct = -1; /* magnitude overflow */ + return TRUE; + } + st += 1; + } + } + /* Section F.1.4.4.1.2: Establish dc_context conditioning category */ + if (m < (int) ((1L << cinfo->arith_dc_L[tbl]) >> 1)) + entropy->dc_context[ci] = 0; /* zero diff category */ + else if (m > (int) ((1L << cinfo->arith_dc_U[tbl]) >> 1)) + entropy->dc_context[ci] = 12 + (sign * 4); /* large diff category */ + else + entropy->dc_context[ci] = 4 + (sign * 4); /* small diff category */ + v = m; + /* Figure F.24: Decoding the magnitude bit pattern of v */ + st += 14; + while (m >>= 1) + if (arith_decode(cinfo, st)) v |= m; + v += 1; if (sign) v = -v; + entropy->last_dc_val[ci] += v; + } + + (*block)[0] = (JCOEF) entropy->last_dc_val[ci]; + + /* Sections F.2.4.2 & F.1.4.4.2: Decoding of AC coefficients */ + + if (cinfo->lim_Se == 0) continue; + tbl = compptr->ac_tbl_no; + k = 0; + + /* Figure F.20: Decode_AC_coefficients */ + do { + st = entropy->ac_stats[tbl] + 3 * k; + if (arith_decode(cinfo, st)) break; /* EOB flag */ + for (;;) { + k++; + if (arith_decode(cinfo, st + 1)) break; + st += 3; + if (k >= cinfo->lim_Se) { + WARNMS(cinfo, JWRN_ARITH_BAD_CODE); + entropy->ct = -1; /* spectral overflow */ + return TRUE; + } + } + /* Figure F.21: Decoding nonzero value v */ + /* Figure F.22: Decoding the sign of v */ + sign = arith_decode(cinfo, entropy->fixed_bin); + st += 2; + /* Figure F.23: Decoding the magnitude category of v */ + if ((m = arith_decode(cinfo, st)) != 0) { + if (arith_decode(cinfo, st)) { + m <<= 1; + st = entropy->ac_stats[tbl] + + (k <= cinfo->arith_ac_K[tbl] ? 189 : 217); + while (arith_decode(cinfo, st)) { + if ((m <<= 1) == 0x8000) { + WARNMS(cinfo, JWRN_ARITH_BAD_CODE); + entropy->ct = -1; /* magnitude overflow */ + return TRUE; + } + st += 1; + } + } + } + v = m; + /* Figure F.24: Decoding the magnitude bit pattern of v */ + st += 14; + while (m >>= 1) + if (arith_decode(cinfo, st)) v |= m; + v += 1; if (sign) v = -v; + (*block)[natural_order[k]] = (JCOEF) v; + } while (k < cinfo->lim_Se); + } + + return TRUE; +} + + +/* + * Initialize for an arithmetic-compressed scan. + */ + +METHODDEF(void) +start_pass (j_decompress_ptr cinfo) +{ + arith_entropy_ptr entropy = (arith_entropy_ptr) cinfo->entropy; + int ci, tbl; + jpeg_component_info * compptr; + + if (cinfo->progressive_mode) { + /* Validate progressive scan parameters */ + if (cinfo->Ss == 0) { + if (cinfo->Se != 0) + goto bad; + } else { + /* need not check Ss/Se < 0 since they came from unsigned bytes */ + if (cinfo->Se < cinfo->Ss || cinfo->Se > cinfo->lim_Se) + goto bad; + /* AC scans may have only one component */ + if (cinfo->comps_in_scan != 1) + goto bad; + } + if (cinfo->Ah != 0) { + /* Successive approximation refinement scan: must have Al = Ah-1. */ + if (cinfo->Ah-1 != cinfo->Al) + goto bad; + } + if (cinfo->Al > 13) { /* need not check for < 0 */ + bad: + ERREXIT4(cinfo, JERR_BAD_PROGRESSION, + cinfo->Ss, cinfo->Se, cinfo->Ah, cinfo->Al); + } + /* Update progression status, and verify that scan order is legal. + * Note that inter-scan inconsistencies are treated as warnings + * not fatal errors ... not clear if this is right way to behave. + */ + for (ci = 0; ci < cinfo->comps_in_scan; ci++) { + int coefi, cindex = cinfo->cur_comp_info[ci]->component_index; + int *coef_bit_ptr = & cinfo->coef_bits[cindex][0]; + if (cinfo->Ss && coef_bit_ptr[0] < 0) /* AC without prior DC scan */ + WARNMS2(cinfo, JWRN_BOGUS_PROGRESSION, cindex, 0); + for (coefi = cinfo->Ss; coefi <= cinfo->Se; coefi++) { + int expected = (coef_bit_ptr[coefi] < 0) ? 0 : coef_bit_ptr[coefi]; + if (cinfo->Ah != expected) + WARNMS2(cinfo, JWRN_BOGUS_PROGRESSION, cindex, coefi); + coef_bit_ptr[coefi] = cinfo->Al; + } + } + /* Select MCU decoding routine */ + if (cinfo->Ah == 0) { + if (cinfo->Ss == 0) + entropy->pub.decode_mcu = decode_mcu_DC_first; + else + entropy->pub.decode_mcu = decode_mcu_AC_first; + } else { + if (cinfo->Ss == 0) + entropy->pub.decode_mcu = decode_mcu_DC_refine; + else + entropy->pub.decode_mcu = decode_mcu_AC_refine; + } + } else { + /* Check that the scan parameters Ss, Se, Ah/Al are OK for sequential JPEG. + * This ought to be an error condition, but we make it a warning. + */ + if (cinfo->Ss != 0 || cinfo->Ah != 0 || cinfo->Al != 0 || + (cinfo->Se < DCTSIZE2 && cinfo->Se != cinfo->lim_Se)) + WARNMS(cinfo, JWRN_NOT_SEQUENTIAL); + /* Select MCU decoding routine */ + entropy->pub.decode_mcu = decode_mcu; + } + + /* Allocate & initialize requested statistics areas */ + for (ci = 0; ci < cinfo->comps_in_scan; ci++) { + compptr = cinfo->cur_comp_info[ci]; + if (! cinfo->progressive_mode || (cinfo->Ss == 0 && cinfo->Ah == 0)) { + tbl = compptr->dc_tbl_no; + if (tbl < 0 || tbl >= NUM_ARITH_TBLS) + ERREXIT1(cinfo, JERR_NO_ARITH_TABLE, tbl); + if (entropy->dc_stats[tbl] == NULL) + entropy->dc_stats[tbl] = (unsigned char *) (*cinfo->mem->alloc_small) + ((j_common_ptr) cinfo, JPOOL_IMAGE, DC_STAT_BINS); + MEMZERO(entropy->dc_stats[tbl], DC_STAT_BINS); + /* Initialize DC predictions to 0 */ + entropy->last_dc_val[ci] = 0; + entropy->dc_context[ci] = 0; + } + if ((! cinfo->progressive_mode && cinfo->lim_Se) || + (cinfo->progressive_mode && cinfo->Ss)) { + tbl = compptr->ac_tbl_no; + if (tbl < 0 || tbl >= NUM_ARITH_TBLS) + ERREXIT1(cinfo, JERR_NO_ARITH_TABLE, tbl); + if (entropy->ac_stats[tbl] == NULL) + entropy->ac_stats[tbl] = (unsigned char *) (*cinfo->mem->alloc_small) + ((j_common_ptr) cinfo, JPOOL_IMAGE, AC_STAT_BINS); + MEMZERO(entropy->ac_stats[tbl], AC_STAT_BINS); + } + } + + /* Initialize arithmetic decoding variables */ + entropy->c = 0; + entropy->a = 0; + entropy->ct = -16; /* force reading 2 initial bytes to fill C */ + + /* Initialize restart counter */ + entropy->restarts_to_go = cinfo->restart_interval; +} + + +/* + * Module initialization routine for arithmetic entropy decoding. + */ + +GLOBAL(void) +jinit_arith_decoder (j_decompress_ptr cinfo) +{ + arith_entropy_ptr entropy; + int i; + + entropy = (arith_entropy_ptr) + (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, + SIZEOF(arith_entropy_decoder)); + cinfo->entropy = (struct jpeg_entropy_decoder *) entropy; + entropy->pub.start_pass = start_pass; + + /* Mark tables unallocated */ + for (i = 0; i < NUM_ARITH_TBLS; i++) { + entropy->dc_stats[i] = NULL; + entropy->ac_stats[i] = NULL; + } + + /* Initialize index for fixed probability estimation */ + entropy->fixed_bin[0] = 113; + + if (cinfo->progressive_mode) { + /* Create progression status table */ + int *coef_bit_ptr, ci; + cinfo->coef_bits = (int (*)[DCTSIZE2]) + (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, + cinfo->num_components*DCTSIZE2*SIZEOF(int)); + coef_bit_ptr = & cinfo->coef_bits[0][0]; + for (ci = 0; ci < cinfo->num_components; ci++) + for (i = 0; i < DCTSIZE2; i++) + *coef_bit_ptr++ = -1; + } +} diff --git a/jpeg/jdatadst.c b/jpeg/jdatadst.c new file mode 100644 index 0000000..6981fb7 --- /dev/null +++ b/jpeg/jdatadst.c @@ -0,0 +1,267 @@ +/* + * jdatadst.c + * + * Copyright (C) 1994-1996, Thomas G. Lane. + * Modified 2009-2012 by Guido Vollbeding. + * This file is part of the Independent JPEG Group's software. + * For conditions of distribution and use, see the accompanying README file. + * + * This file contains compression data destination routines for the case of + * emitting JPEG data to memory or to a file (or any stdio stream). + * While these routines are sufficient for most applications, + * some will want to use a different destination manager. + * IMPORTANT: we assume that fwrite() will correctly transcribe an array of + * JOCTETs into 8-bit-wide elements on external storage. If char is wider + * than 8 bits on your machine, you may need to do some tweaking. + */ + +/* this is not a core library module, so it doesn't define JPEG_INTERNALS */ +#include "jinclude.h" +#include "jpeglib.h" +#include "jerror.h" + +#ifndef HAVE_STDLIB_H /* should declare malloc(),free() */ +extern void * malloc JPP((size_t size)); +extern void free JPP((void *ptr)); +#endif + + +/* Expanded data destination object for stdio output */ + +typedef struct { + struct jpeg_destination_mgr pub; /* public fields */ + + FILE * outfile; /* target stream */ + JOCTET * buffer; /* start of buffer */ +} my_destination_mgr; + +typedef my_destination_mgr * my_dest_ptr; + +#define OUTPUT_BUF_SIZE 4096 /* choose an efficiently fwrite'able size */ + + +/* Expanded data destination object for memory output */ + +typedef struct { + struct jpeg_destination_mgr pub; /* public fields */ + + unsigned char ** outbuffer; /* target buffer */ + unsigned long * outsize; + unsigned char * newbuffer; /* newly allocated buffer */ + JOCTET * buffer; /* start of buffer */ + size_t bufsize; +} my_mem_destination_mgr; + +typedef my_mem_destination_mgr * my_mem_dest_ptr; + + +/* + * Initialize destination --- called by jpeg_start_compress + * before any data is actually written. + */ + +METHODDEF(void) +init_destination (j_compress_ptr cinfo) +{ + my_dest_ptr dest = (my_dest_ptr) cinfo->dest; + + /* Allocate the output buffer --- it will be released when done with image */ + dest->buffer = (JOCTET *) + (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, + OUTPUT_BUF_SIZE * SIZEOF(JOCTET)); + + dest->pub.next_output_byte = dest->buffer; + dest->pub.free_in_buffer = OUTPUT_BUF_SIZE; +} + +METHODDEF(void) +init_mem_destination (j_compress_ptr cinfo) +{ + /* no work necessary here */ +} + + +/* + * Empty the output buffer --- called whenever buffer fills up. + * + * In typical applications, this should write the entire output buffer + * (ignoring the current state of next_output_byte & free_in_buffer), + * reset the pointer & count to the start of the buffer, and return TRUE + * indicating that the buffer has been dumped. + * + * In applications that need to be able to suspend compression due to output + * overrun, a FALSE return indicates that the buffer cannot be emptied now. + * In this situation, the compressor will return to its caller (possibly with + * an indication that it has not accepted all the supplied scanlines). The + * application should resume compression after it has made more room in the + * output buffer. Note that there are substantial restrictions on the use of + * suspension --- see the documentation. + * + * When suspending, the compressor will back up to a convenient restart point + * (typically the start of the current MCU). next_output_byte & free_in_buffer + * indicate where the restart point will be if the current call returns FALSE. + * Data beyond this point will be regenerated after resumption, so do not + * write it out when emptying the buffer externally. + */ + +METHODDEF(boolean) +empty_output_buffer (j_compress_ptr cinfo) +{ + my_dest_ptr dest = (my_dest_ptr) cinfo->dest; + + if (JFWRITE(dest->outfile, dest->buffer, OUTPUT_BUF_SIZE) != + (size_t) OUTPUT_BUF_SIZE) + ERREXIT(cinfo, JERR_FILE_WRITE); + + dest->pub.next_output_byte = dest->buffer; + dest->pub.free_in_buffer = OUTPUT_BUF_SIZE; + + return TRUE; +} + +METHODDEF(boolean) +empty_mem_output_buffer (j_compress_ptr cinfo) +{ + size_t nextsize; + JOCTET * nextbuffer; + my_mem_dest_ptr dest = (my_mem_dest_ptr) cinfo->dest; + + /* Try to allocate new buffer with double size */ + nextsize = dest->bufsize * 2; + nextbuffer = (JOCTET *) malloc(nextsize); + + if (nextbuffer == NULL) + ERREXIT1(cinfo, JERR_OUT_OF_MEMORY, 10); + + MEMCOPY(nextbuffer, dest->buffer, dest->bufsize); + + if (dest->newbuffer != NULL) + free(dest->newbuffer); + + dest->newbuffer = nextbuffer; + + dest->pub.next_output_byte = nextbuffer + dest->bufsize; + dest->pub.free_in_buffer = dest->bufsize; + + dest->buffer = nextbuffer; + dest->bufsize = nextsize; + + return TRUE; +} + + +/* + * Terminate destination --- called by jpeg_finish_compress + * after all data has been written. Usually needs to flush buffer. + * + * NB: *not* called by jpeg_abort or jpeg_destroy; surrounding + * application must deal with any cleanup that should happen even + * for error exit. + */ + +METHODDEF(void) +term_destination (j_compress_ptr cinfo) +{ + my_dest_ptr dest = (my_dest_ptr) cinfo->dest; + size_t datacount = OUTPUT_BUF_SIZE - dest->pub.free_in_buffer; + + /* Write any data remaining in the buffer */ + if (datacount > 0) { + if (JFWRITE(dest->outfile, dest->buffer, datacount) != datacount) + ERREXIT(cinfo, JERR_FILE_WRITE); + } + fflush(dest->outfile); + /* Make sure we wrote the output file OK */ + if (ferror(dest->outfile)) + ERREXIT(cinfo, JERR_FILE_WRITE); +} + +METHODDEF(void) +term_mem_destination (j_compress_ptr cinfo) +{ + my_mem_dest_ptr dest = (my_mem_dest_ptr) cinfo->dest; + + *dest->outbuffer = dest->buffer; + *dest->outsize = dest->bufsize - dest->pub.free_in_buffer; +} + + +/* + * Prepare for output to a stdio stream. + * The caller must have already opened the stream, and is responsible + * for closing it after finishing compression. + */ + +GLOBAL(void) +jpeg_stdio_dest (j_compress_ptr cinfo, FILE * outfile) +{ + my_dest_ptr dest; + + /* The destination object is made permanent so that multiple JPEG images + * can be written to the same file without re-executing jpeg_stdio_dest. + * This makes it dangerous to use this manager and a different destination + * manager serially with the same JPEG object, because their private object + * sizes may be different. Caveat programmer. + */ + if (cinfo->dest == NULL) { /* first time for this JPEG object? */ + cinfo->dest = (struct jpeg_destination_mgr *) + (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_PERMANENT, + SIZEOF(my_destination_mgr)); + } + + dest = (my_dest_ptr) cinfo->dest; + dest->pub.init_destination = init_destination; + dest->pub.empty_output_buffer = empty_output_buffer; + dest->pub.term_destination = term_destination; + dest->outfile = outfile; +} + + +/* + * Prepare for output to a memory buffer. + * The caller may supply an own initial buffer with appropriate size. + * Otherwise, or when the actual data output exceeds the given size, + * the library adapts the buffer size as necessary. + * The standard library functions malloc/free are used for allocating + * larger memory, so the buffer is available to the application after + * finishing compression, and then the application is responsible for + * freeing the requested memory. + */ + +GLOBAL(void) +jpeg_mem_dest (j_compress_ptr cinfo, + unsigned char ** outbuffer, unsigned long * outsize) +{ + my_mem_dest_ptr dest; + + if (outbuffer == NULL || outsize == NULL) /* sanity check */ + ERREXIT(cinfo, JERR_BUFFER_SIZE); + + /* The destination object is made permanent so that multiple JPEG images + * can be written to the same buffer without re-executing jpeg_mem_dest. + */ + if (cinfo->dest == NULL) { /* first time for this JPEG object? */ + cinfo->dest = (struct jpeg_destination_mgr *) + (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_PERMANENT, + SIZEOF(my_mem_destination_mgr)); + } + + dest = (my_mem_dest_ptr) cinfo->dest; + dest->pub.init_destination = init_mem_destination; + dest->pub.empty_output_buffer = empty_mem_output_buffer; + dest->pub.term_destination = term_mem_destination; + dest->outbuffer = outbuffer; + dest->outsize = outsize; + dest->newbuffer = NULL; + + if (*outbuffer == NULL || *outsize == 0) { + /* Allocate initial buffer */ + dest->newbuffer = *outbuffer = (unsigned char *) malloc(OUTPUT_BUF_SIZE); + if (dest->newbuffer == NULL) + ERREXIT1(cinfo, JERR_OUT_OF_MEMORY, 10); + *outsize = OUTPUT_BUF_SIZE; + } + + dest->pub.next_output_byte = dest->buffer = *outbuffer; + dest->pub.free_in_buffer = dest->bufsize = *outsize; +} diff --git a/jpeg/jdatasrc.c b/jpeg/jdatasrc.c new file mode 100644 index 0000000..7be59a8 --- /dev/null +++ b/jpeg/jdatasrc.c @@ -0,0 +1,275 @@ +/* + * jdatasrc.c + * + * Copyright (C) 1994-1996, Thomas G. Lane. + * Modified 2009-2011 by Guido Vollbeding. + * This file is part of the Independent JPEG Group's software. + * For conditions of distribution and use, see the accompanying README file. + * + * This file contains decompression data source routines for the case of + * reading JPEG data from memory or from a file (or any stdio stream). + * While these routines are sufficient for most applications, + * some will want to use a different source manager. + * IMPORTANT: we assume that fread() will correctly transcribe an array of + * JOCTETs from 8-bit-wide elements on external storage. If char is wider + * than 8 bits on your machine, you may need to do some tweaking. + */ + +/* this is not a core library module, so it doesn't define JPEG_INTERNALS */ +#include "jinclude.h" +#include "jpeglib.h" +#include "jerror.h" + + +/* Expanded data source object for stdio input */ + +typedef struct { + struct jpeg_source_mgr pub; /* public fields */ + + FILE * infile; /* source stream */ + JOCTET * buffer; /* start of buffer */ + boolean start_of_file; /* have we gotten any data yet? */ +} my_source_mgr; + +typedef my_source_mgr * my_src_ptr; + +#define INPUT_BUF_SIZE 4096 /* choose an efficiently fread'able size */ + + +/* + * Initialize source --- called by jpeg_read_header + * before any data is actually read. + */ + +METHODDEF(void) +init_source (j_decompress_ptr cinfo) +{ + my_src_ptr src = (my_src_ptr) cinfo->src; + + /* We reset the empty-input-file flag for each image, + * but we don't clear the input buffer. + * This is correct behavior for reading a series of images from one source. + */ + src->start_of_file = TRUE; +} + +METHODDEF(void) +init_mem_source (j_decompress_ptr cinfo) +{ + /* no work necessary here */ +} + + +/* + * Fill the input buffer --- called whenever buffer is emptied. + * + * In typical applications, this should read fresh data into the buffer + * (ignoring the current state of next_input_byte & bytes_in_buffer), + * reset the pointer & count to the start of the buffer, and return TRUE + * indicating that the buffer has been reloaded. It is not necessary to + * fill the buffer entirely, only to obtain at least one more byte. + * + * There is no such thing as an EOF return. If the end of the file has been + * reached, the routine has a choice of ERREXIT() or inserting fake data into + * the buffer. In most cases, generating a warning message and inserting a + * fake EOI marker is the best course of action --- this will allow the + * decompressor to output however much of the image is there. However, + * the resulting error message is misleading if the real problem is an empty + * input file, so we handle that case specially. + * + * In applications that need to be able to suspend compression due to input + * not being available yet, a FALSE return indicates that no more data can be + * obtained right now, but more may be forthcoming later. In this situation, + * the decompressor will return to its caller (with an indication of the + * number of scanlines it has read, if any). The application should resume + * decompression after it has loaded more data into the input buffer. Note + * that there are substantial restrictions on the use of suspension --- see + * the documentation. + * + * When suspending, the decompressor will back up to a convenient restart point + * (typically the start of the current MCU). next_input_byte & bytes_in_buffer + * indicate where the restart point will be if the current call returns FALSE. + * Data beyond this point must be rescanned after resumption, so move it to + * the front of the buffer rather than discarding it. + */ + +METHODDEF(boolean) +fill_input_buffer (j_decompress_ptr cinfo) +{ + my_src_ptr src = (my_src_ptr) cinfo->src; + size_t nbytes; + + nbytes = JFREAD(src->infile, src->buffer, INPUT_BUF_SIZE); + + if (nbytes <= 0) { + if (src->start_of_file) /* Treat empty input file as fatal error */ + ERREXIT(cinfo, JERR_INPUT_EMPTY); + WARNMS(cinfo, JWRN_JPEG_EOF); + /* Insert a fake EOI marker */ + src->buffer[0] = (JOCTET) 0xFF; + src->buffer[1] = (JOCTET) JPEG_EOI; + nbytes = 2; + } + + src->pub.next_input_byte = src->buffer; + src->pub.bytes_in_buffer = nbytes; + src->start_of_file = FALSE; + + return TRUE; +} + +METHODDEF(boolean) +fill_mem_input_buffer (j_decompress_ptr cinfo) +{ + static const JOCTET mybuffer[4] = { + (JOCTET) 0xFF, (JOCTET) JPEG_EOI, 0, 0 + }; + + /* The whole JPEG data is expected to reside in the supplied memory + * buffer, so any request for more data beyond the given buffer size + * is treated as an error. + */ + WARNMS(cinfo, JWRN_JPEG_EOF); + + /* Insert a fake EOI marker */ + + cinfo->src->next_input_byte = mybuffer; + cinfo->src->bytes_in_buffer = 2; + + return TRUE; +} + + +/* + * Skip data --- used to skip over a potentially large amount of + * uninteresting data (such as an APPn marker). + * + * Writers of suspendable-input applications must note that skip_input_data + * is not granted the right to give a suspension return. If the skip extends + * beyond the data currently in the buffer, the buffer can be marked empty so + * that the next read will cause a fill_input_buffer call that can suspend. + * Arranging for additional bytes to be discarded before reloading the input + * buffer is the application writer's problem. + */ + +METHODDEF(void) +skip_input_data (j_decompress_ptr cinfo, long num_bytes) +{ + struct jpeg_source_mgr * src = cinfo->src; + + /* Just a dumb implementation for now. Could use fseek() except + * it doesn't work on pipes. Not clear that being smart is worth + * any trouble anyway --- large skips are infrequent. + */ + if (num_bytes > 0) { + while (num_bytes > (long) src->bytes_in_buffer) { + num_bytes -= (long) src->bytes_in_buffer; + (void) (*src->fill_input_buffer) (cinfo); + /* note we assume that fill_input_buffer will never return FALSE, + * so suspension need not be handled. + */ + } + src->next_input_byte += (size_t) num_bytes; + src->bytes_in_buffer -= (size_t) num_bytes; + } +} + + +/* + * An additional method that can be provided by data source modules is the + * resync_to_restart method for error recovery in the presence of RST markers. + * For the moment, this source module just uses the default resync method + * provided by the JPEG library. That method assumes that no backtracking + * is possible. + */ + + +/* + * Terminate source --- called by jpeg_finish_decompress + * after all data has been read. Often a no-op. + * + * NB: *not* called by jpeg_abort or jpeg_destroy; surrounding + * application must deal with any cleanup that should happen even + * for error exit. + */ + +METHODDEF(void) +term_source (j_decompress_ptr cinfo) +{ + /* no work necessary here */ +} + + +/* + * Prepare for input from a stdio stream. + * The caller must have already opened the stream, and is responsible + * for closing it after finishing decompression. + */ + +GLOBAL(void) +jpeg_stdio_src (j_decompress_ptr cinfo, FILE * infile) +{ + my_src_ptr src; + + /* The source object and input buffer are made permanent so that a series + * of JPEG images can be read from the same file by calling jpeg_stdio_src + * only before the first one. (If we discarded the buffer at the end of + * one image, we'd likely lose the start of the next one.) + * This makes it unsafe to use this manager and a different source + * manager serially with the same JPEG object. Caveat programmer. + */ + if (cinfo->src == NULL) { /* first time for this JPEG object? */ + cinfo->src = (struct jpeg_source_mgr *) + (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_PERMANENT, + SIZEOF(my_source_mgr)); + src = (my_src_ptr) cinfo->src; + src->buffer = (JOCTET *) + (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_PERMANENT, + INPUT_BUF_SIZE * SIZEOF(JOCTET)); + } + + src = (my_src_ptr) cinfo->src; + src->pub.init_source = init_source; + src->pub.fill_input_buffer = fill_input_buffer; + src->pub.skip_input_data = skip_input_data; + src->pub.resync_to_restart = jpeg_resync_to_restart; /* use default method */ + src->pub.term_source = term_source; + src->infile = infile; + src->pub.bytes_in_buffer = 0; /* forces fill_input_buffer on first read */ + src->pub.next_input_byte = NULL; /* until buffer loaded */ +} + + +/* + * Prepare for input from a supplied memory buffer. + * The buffer must contain the whole JPEG data. + */ + +GLOBAL(void) +jpeg_mem_src (j_decompress_ptr cinfo, + unsigned char * inbuffer, unsigned long insize) +{ + struct jpeg_source_mgr * src; + + if (inbuffer == NULL || insize == 0) /* Treat empty input as fatal error */ + ERREXIT(cinfo, JERR_INPUT_EMPTY); + + /* The source object is made permanent so that a series of JPEG images + * can be read from the same buffer by calling jpeg_mem_src only before + * the first one. + */ + if (cinfo->src == NULL) { /* first time for this JPEG object? */ + cinfo->src = (struct jpeg_source_mgr *) + (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_PERMANENT, + SIZEOF(struct jpeg_source_mgr)); + } + + src = cinfo->src; + src->init_source = init_mem_source; + src->fill_input_buffer = fill_mem_input_buffer; + src->skip_input_data = skip_input_data; + src->resync_to_restart = jpeg_resync_to_restart; /* use default method */ + src->term_source = term_source; + src->bytes_in_buffer = (size_t) insize; + src->next_input_byte = (JOCTET *) inbuffer; +} diff --git a/jpeg/jdcoefct.c b/jpeg/jdcoefct.c new file mode 100644 index 0000000..ed02fc3 --- /dev/null +++ b/jpeg/jdcoefct.c @@ -0,0 +1,741 @@ +/* + * jdcoefct.c + * + * Copyright (C) 1994-1997, Thomas G. Lane. + * Modified 2002-2011 by Guido Vollbeding. + * This file is part of the Independent JPEG Group's software. + * For conditions of distribution and use, see the accompanying README file. + * + * This file contains the coefficient buffer controller for decompression. + * This controller is the top level of the JPEG decompressor proper. + * The coefficient buffer lies between entropy decoding and inverse-DCT steps. + * + * In buffered-image mode, this controller is the interface between + * input-oriented processing and output-oriented processing. + * Also, the input side (only) is used when reading a file for transcoding. + */ + +#define JPEG_INTERNALS +#include "jinclude.h" +#include "jpeglib.h" + +/* Block smoothing is only applicable for progressive JPEG, so: */ +#ifndef D_PROGRESSIVE_SUPPORTED +#undef BLOCK_SMOOTHING_SUPPORTED +#endif + +/* Private buffer controller object */ + +typedef struct { + struct jpeg_d_coef_controller pub; /* public fields */ + + /* These variables keep track of the current location of the input side. */ + /* cinfo->input_iMCU_row is also used for this. */ + JDIMENSION MCU_ctr; /* counts MCUs processed in current row */ + int MCU_vert_offset; /* counts MCU rows within iMCU row */ + int MCU_rows_per_iMCU_row; /* number of such rows needed */ + + /* The output side's location is represented by cinfo->output_iMCU_row. */ + + /* In single-pass modes, it's sufficient to buffer just one MCU. + * We allocate a workspace of D_MAX_BLOCKS_IN_MCU coefficient blocks, + * and let the entropy decoder write into that workspace each time. + * (On 80x86, the workspace is FAR even though it's not really very big; + * this is to keep the module interfaces unchanged when a large coefficient + * buffer is necessary.) + * In multi-pass modes, this array points to the current MCU's blocks + * within the virtual arrays; it is used only by the input side. + */ + JBLOCKROW MCU_buffer[D_MAX_BLOCKS_IN_MCU]; + +#ifdef D_MULTISCAN_FILES_SUPPORTED + /* In multi-pass modes, we need a virtual block array for each component. */ + jvirt_barray_ptr whole_image[MAX_COMPONENTS]; +#endif + +#ifdef BLOCK_SMOOTHING_SUPPORTED + /* When doing block smoothing, we latch coefficient Al values here */ + int * coef_bits_latch; +#define SAVED_COEFS 6 /* we save coef_bits[0..5] */ +#endif +} my_coef_controller; + +typedef my_coef_controller * my_coef_ptr; + +/* Forward declarations */ +METHODDEF(int) decompress_onepass + JPP((j_decompress_ptr cinfo, JSAMPIMAGE output_buf)); +#ifdef D_MULTISCAN_FILES_SUPPORTED +METHODDEF(int) decompress_data + JPP((j_decompress_ptr cinfo, JSAMPIMAGE output_buf)); +#endif +#ifdef BLOCK_SMOOTHING_SUPPORTED +LOCAL(boolean) smoothing_ok JPP((j_decompress_ptr cinfo)); +METHODDEF(int) decompress_smooth_data + JPP((j_decompress_ptr cinfo, JSAMPIMAGE output_buf)); +#endif + + +LOCAL(void) +start_iMCU_row (j_decompress_ptr cinfo) +/* Reset within-iMCU-row counters for a new row (input side) */ +{ + my_coef_ptr coef = (my_coef_ptr) cinfo->coef; + + /* In an interleaved scan, an MCU row is the same as an iMCU row. + * In a noninterleaved scan, an iMCU row has v_samp_factor MCU rows. + * But at the bottom of the image, process only what's left. + */ + if (cinfo->comps_in_scan > 1) { + coef->MCU_rows_per_iMCU_row = 1; + } else { + if (cinfo->input_iMCU_row < (cinfo->total_iMCU_rows-1)) + coef->MCU_rows_per_iMCU_row = cinfo->cur_comp_info[0]->v_samp_factor; + else + coef->MCU_rows_per_iMCU_row = cinfo->cur_comp_info[0]->last_row_height; + } + + coef->MCU_ctr = 0; + coef->MCU_vert_offset = 0; +} + + +/* + * Initialize for an input processing pass. + */ + +METHODDEF(void) +start_input_pass (j_decompress_ptr cinfo) +{ + cinfo->input_iMCU_row = 0; + start_iMCU_row(cinfo); +} + + +/* + * Initialize for an output processing pass. + */ + +METHODDEF(void) +start_output_pass (j_decompress_ptr cinfo) +{ +#ifdef BLOCK_SMOOTHING_SUPPORTED + my_coef_ptr coef = (my_coef_ptr) cinfo->coef; + + /* If multipass, check to see whether to use block smoothing on this pass */ + if (coef->pub.coef_arrays != NULL) { + if (cinfo->do_block_smoothing && smoothing_ok(cinfo)) + coef->pub.decompress_data = decompress_smooth_data; + else + coef->pub.decompress_data = decompress_data; + } +#endif + cinfo->output_iMCU_row = 0; +} + + +/* + * Decompress and return some data in the single-pass case. + * Always attempts to emit one fully interleaved MCU row ("iMCU" row). + * Input and output must run in lockstep since we have only a one-MCU buffer. + * Return value is JPEG_ROW_COMPLETED, JPEG_SCAN_COMPLETED, or JPEG_SUSPENDED. + * + * NB: output_buf contains a plane for each component in image, + * which we index according to the component's SOF position. + */ + +METHODDEF(int) +decompress_onepass (j_decompress_ptr cinfo, JSAMPIMAGE output_buf) +{ + my_coef_ptr coef = (my_coef_ptr) cinfo->coef; + JDIMENSION MCU_col_num; /* index of current MCU within row */ + JDIMENSION last_MCU_col = cinfo->MCUs_per_row - 1; + JDIMENSION last_iMCU_row = cinfo->total_iMCU_rows - 1; + int blkn, ci, xindex, yindex, yoffset, useful_width; + JSAMPARRAY output_ptr; + JDIMENSION start_col, output_col; + jpeg_component_info *compptr; + inverse_DCT_method_ptr inverse_DCT; + + /* Loop to process as much as one whole iMCU row */ + for (yoffset = coef->MCU_vert_offset; yoffset < coef->MCU_rows_per_iMCU_row; + yoffset++) { + for (MCU_col_num = coef->MCU_ctr; MCU_col_num <= last_MCU_col; + MCU_col_num++) { + /* Try to fetch an MCU. Entropy decoder expects buffer to be zeroed. */ + if (cinfo->lim_Se) /* can bypass in DC only case */ + FMEMZERO((void FAR *) coef->MCU_buffer[0], + (size_t) (cinfo->blocks_in_MCU * SIZEOF(JBLOCK))); + if (! (*cinfo->entropy->decode_mcu) (cinfo, coef->MCU_buffer)) { + /* Suspension forced; update state counters and exit */ + coef->MCU_vert_offset = yoffset; + coef->MCU_ctr = MCU_col_num; + return JPEG_SUSPENDED; + } + /* Determine where data should go in output_buf and do the IDCT thing. + * We skip dummy blocks at the right and bottom edges (but blkn gets + * incremented past them!). Note the inner loop relies on having + * allocated the MCU_buffer[] blocks sequentially. + */ + blkn = 0; /* index of current DCT block within MCU */ + for (ci = 0; ci < cinfo->comps_in_scan; ci++) { + compptr = cinfo->cur_comp_info[ci]; + /* Don't bother to IDCT an uninteresting component. */ + if (! compptr->component_needed) { + blkn += compptr->MCU_blocks; + continue; + } + inverse_DCT = cinfo->idct->inverse_DCT[compptr->component_index]; + useful_width = (MCU_col_num < last_MCU_col) ? compptr->MCU_width + : compptr->last_col_width; + output_ptr = output_buf[compptr->component_index] + + yoffset * compptr->DCT_v_scaled_size; + start_col = MCU_col_num * compptr->MCU_sample_width; + for (yindex = 0; yindex < compptr->MCU_height; yindex++) { + if (cinfo->input_iMCU_row < last_iMCU_row || + yoffset+yindex < compptr->last_row_height) { + output_col = start_col; + for (xindex = 0; xindex < useful_width; xindex++) { + (*inverse_DCT) (cinfo, compptr, + (JCOEFPTR) coef->MCU_buffer[blkn+xindex], + output_ptr, output_col); + output_col += compptr->DCT_h_scaled_size; + } + } + blkn += compptr->MCU_width; + output_ptr += compptr->DCT_v_scaled_size; + } + } + } + /* Completed an MCU row, but perhaps not an iMCU row */ + coef->MCU_ctr = 0; + } + /* Completed the iMCU row, advance counters for next one */ + cinfo->output_iMCU_row++; + if (++(cinfo->input_iMCU_row) < cinfo->total_iMCU_rows) { + start_iMCU_row(cinfo); + return JPEG_ROW_COMPLETED; + } + /* Completed the scan */ + (*cinfo->inputctl->finish_input_pass) (cinfo); + return JPEG_SCAN_COMPLETED; +} + + +/* + * Dummy consume-input routine for single-pass operation. + */ + +METHODDEF(int) +dummy_consume_data (j_decompress_ptr cinfo) +{ + return JPEG_SUSPENDED; /* Always indicate nothing was done */ +} + + +#ifdef D_MULTISCAN_FILES_SUPPORTED + +/* + * Consume input data and store it in the full-image coefficient buffer. + * We read as much as one fully interleaved MCU row ("iMCU" row) per call, + * ie, v_samp_factor block rows for each component in the scan. + * Return value is JPEG_ROW_COMPLETED, JPEG_SCAN_COMPLETED, or JPEG_SUSPENDED. + */ + +METHODDEF(int) +consume_data (j_decompress_ptr cinfo) +{ + my_coef_ptr coef = (my_coef_ptr) cinfo->coef; + JDIMENSION MCU_col_num; /* index of current MCU within row */ + int blkn, ci, xindex, yindex, yoffset; + JDIMENSION start_col; + JBLOCKARRAY buffer[MAX_COMPS_IN_SCAN]; + JBLOCKROW buffer_ptr; + jpeg_component_info *compptr; + + /* Align the virtual buffers for the components used in this scan. */ + for (ci = 0; ci < cinfo->comps_in_scan; ci++) { + compptr = cinfo->cur_comp_info[ci]; + buffer[ci] = (*cinfo->mem->access_virt_barray) + ((j_common_ptr) cinfo, coef->whole_image[compptr->component_index], + cinfo->input_iMCU_row * compptr->v_samp_factor, + (JDIMENSION) compptr->v_samp_factor, TRUE); + /* Note: entropy decoder expects buffer to be zeroed, + * but this is handled automatically by the memory manager + * because we requested a pre-zeroed array. + */ + } + + /* Loop to process one whole iMCU row */ + for (yoffset = coef->MCU_vert_offset; yoffset < coef->MCU_rows_per_iMCU_row; + yoffset++) { + for (MCU_col_num = coef->MCU_ctr; MCU_col_num < cinfo->MCUs_per_row; + MCU_col_num++) { + /* Construct list of pointers to DCT blocks belonging to this MCU */ + blkn = 0; /* index of current DCT block within MCU */ + for (ci = 0; ci < cinfo->comps_in_scan; ci++) { + compptr = cinfo->cur_comp_info[ci]; + start_col = MCU_col_num * compptr->MCU_width; + for (yindex = 0; yindex < compptr->MCU_height; yindex++) { + buffer_ptr = buffer[ci][yindex+yoffset] + start_col; + for (xindex = 0; xindex < compptr->MCU_width; xindex++) { + coef->MCU_buffer[blkn++] = buffer_ptr++; + } + } + } + /* Try to fetch the MCU. */ + if (! (*cinfo->entropy->decode_mcu) (cinfo, coef->MCU_buffer)) { + /* Suspension forced; update state counters and exit */ + coef->MCU_vert_offset = yoffset; + coef->MCU_ctr = MCU_col_num; + return JPEG_SUSPENDED; + } + } + /* Completed an MCU row, but perhaps not an iMCU row */ + coef->MCU_ctr = 0; + } + /* Completed the iMCU row, advance counters for next one */ + if (++(cinfo->input_iMCU_row) < cinfo->total_iMCU_rows) { + start_iMCU_row(cinfo); + return JPEG_ROW_COMPLETED; + } + /* Completed the scan */ + (*cinfo->inputctl->finish_input_pass) (cinfo); + return JPEG_SCAN_COMPLETED; +} + + +/* + * Decompress and return some data in the multi-pass case. + * Always attempts to emit one fully interleaved MCU row ("iMCU" row). + * Return value is JPEG_ROW_COMPLETED, JPEG_SCAN_COMPLETED, or JPEG_SUSPENDED. + * + * NB: output_buf contains a plane for each component in image. + */ + +METHODDEF(int) +decompress_data (j_decompress_ptr cinfo, JSAMPIMAGE output_buf) +{ + my_coef_ptr coef = (my_coef_ptr) cinfo->coef; + JDIMENSION last_iMCU_row = cinfo->total_iMCU_rows - 1; + JDIMENSION block_num; + int ci, block_row, block_rows; + JBLOCKARRAY buffer; + JBLOCKROW buffer_ptr; + JSAMPARRAY output_ptr; + JDIMENSION output_col; + jpeg_component_info *compptr; + inverse_DCT_method_ptr inverse_DCT; + + /* Force some input to be done if we are getting ahead of the input. */ + while (cinfo->input_scan_number < cinfo->output_scan_number || + (cinfo->input_scan_number == cinfo->output_scan_number && + cinfo->input_iMCU_row <= cinfo->output_iMCU_row)) { + if ((*cinfo->inputctl->consume_input)(cinfo) == JPEG_SUSPENDED) + return JPEG_SUSPENDED; + } + + /* OK, output from the virtual arrays. */ + for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components; + ci++, compptr++) { + /* Don't bother to IDCT an uninteresting component. */ + if (! compptr->component_needed) + continue; + /* Align the virtual buffer for this component. */ + buffer = (*cinfo->mem->access_virt_barray) + ((j_common_ptr) cinfo, coef->whole_image[ci], + cinfo->output_iMCU_row * compptr->v_samp_factor, + (JDIMENSION) compptr->v_samp_factor, FALSE); + /* Count non-dummy DCT block rows in this iMCU row. */ + if (cinfo->output_iMCU_row < last_iMCU_row) + block_rows = compptr->v_samp_factor; + else { + /* NB: can't use last_row_height here; it is input-side-dependent! */ + block_rows = (int) (compptr->height_in_blocks % compptr->v_samp_factor); + if (block_rows == 0) block_rows = compptr->v_samp_factor; + } + inverse_DCT = cinfo->idct->inverse_DCT[ci]; + output_ptr = output_buf[ci]; + /* Loop over all DCT blocks to be processed. */ + for (block_row = 0; block_row < block_rows; block_row++) { + buffer_ptr = buffer[block_row]; + output_col = 0; + for (block_num = 0; block_num < compptr->width_in_blocks; block_num++) { + (*inverse_DCT) (cinfo, compptr, (JCOEFPTR) buffer_ptr, + output_ptr, output_col); + buffer_ptr++; + output_col += compptr->DCT_h_scaled_size; + } + output_ptr += compptr->DCT_v_scaled_size; + } + } + + if (++(cinfo->output_iMCU_row) < cinfo->total_iMCU_rows) + return JPEG_ROW_COMPLETED; + return JPEG_SCAN_COMPLETED; +} + +#endif /* D_MULTISCAN_FILES_SUPPORTED */ + + +#ifdef BLOCK_SMOOTHING_SUPPORTED + +/* + * This code applies interblock smoothing as described by section K.8 + * of the JPEG standard: the first 5 AC coefficients are estimated from + * the DC values of a DCT block and its 8 neighboring blocks. + * We apply smoothing only for progressive JPEG decoding, and only if + * the coefficients it can estimate are not yet known to full precision. + */ + +/* Natural-order array positions of the first 5 zigzag-order coefficients */ +#define Q01_POS 1 +#define Q10_POS 8 +#define Q20_POS 16 +#define Q11_POS 9 +#define Q02_POS 2 + +/* + * Determine whether block smoothing is applicable and safe. + * We also latch the current states of the coef_bits[] entries for the + * AC coefficients; otherwise, if the input side of the decompressor + * advances into a new scan, we might think the coefficients are known + * more accurately than they really are. + */ + +LOCAL(boolean) +smoothing_ok (j_decompress_ptr cinfo) +{ + my_coef_ptr coef = (my_coef_ptr) cinfo->coef; + boolean smoothing_useful = FALSE; + int ci, coefi; + jpeg_component_info *compptr; + JQUANT_TBL * qtable; + int * coef_bits; + int * coef_bits_latch; + + if (! cinfo->progressive_mode || cinfo->coef_bits == NULL) + return FALSE; + + /* Allocate latch area if not already done */ + if (coef->coef_bits_latch == NULL) + coef->coef_bits_latch = (int *) + (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, + cinfo->num_components * + (SAVED_COEFS * SIZEOF(int))); + coef_bits_latch = coef->coef_bits_latch; + + for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components; + ci++, compptr++) { + /* All components' quantization values must already be latched. */ + if ((qtable = compptr->quant_table) == NULL) + return FALSE; + /* Verify DC & first 5 AC quantizers are nonzero to avoid zero-divide. */ + if (qtable->quantval[0] == 0 || + qtable->quantval[Q01_POS] == 0 || + qtable->quantval[Q10_POS] == 0 || + qtable->quantval[Q20_POS] == 0 || + qtable->quantval[Q11_POS] == 0 || + qtable->quantval[Q02_POS] == 0) + return FALSE; + /* DC values must be at least partly known for all components. */ + coef_bits = cinfo->coef_bits[ci]; + if (coef_bits[0] < 0) + return FALSE; + /* Block smoothing is helpful if some AC coefficients remain inaccurate. */ + for (coefi = 1; coefi <= 5; coefi++) { + coef_bits_latch[coefi] = coef_bits[coefi]; + if (coef_bits[coefi] != 0) + smoothing_useful = TRUE; + } + coef_bits_latch += SAVED_COEFS; + } + + return smoothing_useful; +} + + +/* + * Variant of decompress_data for use when doing block smoothing. + */ + +METHODDEF(int) +decompress_smooth_data (j_decompress_ptr cinfo, JSAMPIMAGE output_buf) +{ + my_coef_ptr coef = (my_coef_ptr) cinfo->coef; + JDIMENSION last_iMCU_row = cinfo->total_iMCU_rows - 1; + JDIMENSION block_num, last_block_column; + int ci, block_row, block_rows, access_rows; + JBLOCKARRAY buffer; + JBLOCKROW buffer_ptr, prev_block_row, next_block_row; + JSAMPARRAY output_ptr; + JDIMENSION output_col; + jpeg_component_info *compptr; + inverse_DCT_method_ptr inverse_DCT; + boolean first_row, last_row; + JBLOCK workspace; + int *coef_bits; + JQUANT_TBL *quanttbl; + INT32 Q00,Q01,Q02,Q10,Q11,Q20, num; + int DC1,DC2,DC3,DC4,DC5,DC6,DC7,DC8,DC9; + int Al, pred; + + /* Force some input to be done if we are getting ahead of the input. */ + while (cinfo->input_scan_number <= cinfo->output_scan_number && + ! cinfo->inputctl->eoi_reached) { + if (cinfo->input_scan_number == cinfo->output_scan_number) { + /* If input is working on current scan, we ordinarily want it to + * have completed the current row. But if input scan is DC, + * we want it to keep one row ahead so that next block row's DC + * values are up to date. + */ + JDIMENSION delta = (cinfo->Ss == 0) ? 1 : 0; + if (cinfo->input_iMCU_row > cinfo->output_iMCU_row+delta) + break; + } + if ((*cinfo->inputctl->consume_input)(cinfo) == JPEG_SUSPENDED) + return JPEG_SUSPENDED; + } + + /* OK, output from the virtual arrays. */ + for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components; + ci++, compptr++) { + /* Don't bother to IDCT an uninteresting component. */ + if (! compptr->component_needed) + continue; + /* Count non-dummy DCT block rows in this iMCU row. */ + if (cinfo->output_iMCU_row < last_iMCU_row) { + block_rows = compptr->v_samp_factor; + access_rows = block_rows * 2; /* this and next iMCU row */ + last_row = FALSE; + } else { + /* NB: can't use last_row_height here; it is input-side-dependent! */ + block_rows = (int) (compptr->height_in_blocks % compptr->v_samp_factor); + if (block_rows == 0) block_rows = compptr->v_samp_factor; + access_rows = block_rows; /* this iMCU row only */ + last_row = TRUE; + } + /* Align the virtual buffer for this component. */ + if (cinfo->output_iMCU_row > 0) { + access_rows += compptr->v_samp_factor; /* prior iMCU row too */ + buffer = (*cinfo->mem->access_virt_barray) + ((j_common_ptr) cinfo, coef->whole_image[ci], + (cinfo->output_iMCU_row - 1) * compptr->v_samp_factor, + (JDIMENSION) access_rows, FALSE); + buffer += compptr->v_samp_factor; /* point to current iMCU row */ + first_row = FALSE; + } else { + buffer = (*cinfo->mem->access_virt_barray) + ((j_common_ptr) cinfo, coef->whole_image[ci], + (JDIMENSION) 0, (JDIMENSION) access_rows, FALSE); + first_row = TRUE; + } + /* Fetch component-dependent info */ + coef_bits = coef->coef_bits_latch + (ci * SAVED_COEFS); + quanttbl = compptr->quant_table; + Q00 = quanttbl->quantval[0]; + Q01 = quanttbl->quantval[Q01_POS]; + Q10 = quanttbl->quantval[Q10_POS]; + Q20 = quanttbl->quantval[Q20_POS]; + Q11 = quanttbl->quantval[Q11_POS]; + Q02 = quanttbl->quantval[Q02_POS]; + inverse_DCT = cinfo->idct->inverse_DCT[ci]; + output_ptr = output_buf[ci]; + /* Loop over all DCT blocks to be processed. */ + for (block_row = 0; block_row < block_rows; block_row++) { + buffer_ptr = buffer[block_row]; + if (first_row && block_row == 0) + prev_block_row = buffer_ptr; + else + prev_block_row = buffer[block_row-1]; + if (last_row && block_row == block_rows-1) + next_block_row = buffer_ptr; + else + next_block_row = buffer[block_row+1]; + /* We fetch the surrounding DC values using a sliding-register approach. + * Initialize all nine here so as to do the right thing on narrow pics. + */ + DC1 = DC2 = DC3 = (int) prev_block_row[0][0]; + DC4 = DC5 = DC6 = (int) buffer_ptr[0][0]; + DC7 = DC8 = DC9 = (int) next_block_row[0][0]; + output_col = 0; + last_block_column = compptr->width_in_blocks - 1; + for (block_num = 0; block_num <= last_block_column; block_num++) { + /* Fetch current DCT block into workspace so we can modify it. */ + jcopy_block_row(buffer_ptr, (JBLOCKROW) workspace, (JDIMENSION) 1); + /* Update DC values */ + if (block_num < last_block_column) { + DC3 = (int) prev_block_row[1][0]; + DC6 = (int) buffer_ptr[1][0]; + DC9 = (int) next_block_row[1][0]; + } + /* Compute coefficient estimates per K.8. + * An estimate is applied only if coefficient is still zero, + * and is not known to be fully accurate. + */ + /* AC01 */ + if ((Al=coef_bits[1]) != 0 && workspace[1] == 0) { + num = 36 * Q00 * (DC4 - DC6); + if (num >= 0) { + pred = (int) (((Q01<<7) + num) / (Q01<<8)); + if (Al > 0 && pred >= (1< 0 && pred >= (1<= 0) { + pred = (int) (((Q10<<7) + num) / (Q10<<8)); + if (Al > 0 && pred >= (1< 0 && pred >= (1<= 0) { + pred = (int) (((Q20<<7) + num) / (Q20<<8)); + if (Al > 0 && pred >= (1< 0 && pred >= (1<= 0) { + pred = (int) (((Q11<<7) + num) / (Q11<<8)); + if (Al > 0 && pred >= (1< 0 && pred >= (1<= 0) { + pred = (int) (((Q02<<7) + num) / (Q02<<8)); + if (Al > 0 && pred >= (1< 0 && pred >= (1<DCT_h_scaled_size; + } + output_ptr += compptr->DCT_v_scaled_size; + } + } + + if (++(cinfo->output_iMCU_row) < cinfo->total_iMCU_rows) + return JPEG_ROW_COMPLETED; + return JPEG_SCAN_COMPLETED; +} + +#endif /* BLOCK_SMOOTHING_SUPPORTED */ + + +/* + * Initialize coefficient buffer controller. + */ + +GLOBAL(void) +jinit_d_coef_controller (j_decompress_ptr cinfo, boolean need_full_buffer) +{ + my_coef_ptr coef; + + coef = (my_coef_ptr) + (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, + SIZEOF(my_coef_controller)); + cinfo->coef = (struct jpeg_d_coef_controller *) coef; + coef->pub.start_input_pass = start_input_pass; + coef->pub.start_output_pass = start_output_pass; +#ifdef BLOCK_SMOOTHING_SUPPORTED + coef->coef_bits_latch = NULL; +#endif + + /* Create the coefficient buffer. */ + if (need_full_buffer) { +#ifdef D_MULTISCAN_FILES_SUPPORTED + /* Allocate a full-image virtual array for each component, */ + /* padded to a multiple of samp_factor DCT blocks in each direction. */ + /* Note we ask for a pre-zeroed array. */ + int ci, access_rows; + jpeg_component_info *compptr; + + for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components; + ci++, compptr++) { + access_rows = compptr->v_samp_factor; +#ifdef BLOCK_SMOOTHING_SUPPORTED + /* If block smoothing could be used, need a bigger window */ + if (cinfo->progressive_mode) + access_rows *= 3; +#endif + coef->whole_image[ci] = (*cinfo->mem->request_virt_barray) + ((j_common_ptr) cinfo, JPOOL_IMAGE, TRUE, + (JDIMENSION) jround_up((long) compptr->width_in_blocks, + (long) compptr->h_samp_factor), + (JDIMENSION) jround_up((long) compptr->height_in_blocks, + (long) compptr->v_samp_factor), + (JDIMENSION) access_rows); + } + coef->pub.consume_data = consume_data; + coef->pub.decompress_data = decompress_data; + coef->pub.coef_arrays = coef->whole_image; /* link to virtual arrays */ +#else + ERREXIT(cinfo, JERR_NOT_COMPILED); +#endif + } else { + /* We only need a single-MCU buffer. */ + JBLOCKROW buffer; + int i; + + buffer = (JBLOCKROW) + (*cinfo->mem->alloc_large) ((j_common_ptr) cinfo, JPOOL_IMAGE, + D_MAX_BLOCKS_IN_MCU * SIZEOF(JBLOCK)); + for (i = 0; i < D_MAX_BLOCKS_IN_MCU; i++) { + coef->MCU_buffer[i] = buffer + i; + } + if (cinfo->lim_Se == 0) /* DC only case: want to bypass later */ + FMEMZERO((void FAR *) buffer, + (size_t) (D_MAX_BLOCKS_IN_MCU * SIZEOF(JBLOCK))); + coef->pub.consume_data = dummy_consume_data; + coef->pub.decompress_data = decompress_onepass; + coef->pub.coef_arrays = NULL; /* flag for no virtual arrays */ + } +} diff --git a/jpeg/jdcolor.c b/jpeg/jdcolor.c new file mode 100644 index 0000000..83e4d06 --- /dev/null +++ b/jpeg/jdcolor.c @@ -0,0 +1,512 @@ +/* + * jdcolor.c + * + * Copyright (C) 1991-1997, Thomas G. Lane. + * Modified 2011 by Guido Vollbeding. + * This file is part of the Independent JPEG Group's software. + * For conditions of distribution and use, see the accompanying README file. + * + * This file contains output colorspace conversion routines. + */ + +#define JPEG_INTERNALS +#include "jinclude.h" +#include "jpeglib.h" + + +/* Private subobject */ + +typedef struct { + struct jpeg_color_deconverter pub; /* public fields */ + + /* Private state for YCC->RGB conversion */ + int * Cr_r_tab; /* => table for Cr to R conversion */ + int * Cb_b_tab; /* => table for Cb to B conversion */ + INT32 * Cr_g_tab; /* => table for Cr to G conversion */ + INT32 * Cb_g_tab; /* => table for Cb to G conversion */ + + /* Private state for RGB->Y conversion */ + INT32 * rgb_y_tab; /* => table for RGB to Y conversion */ +} my_color_deconverter; + +typedef my_color_deconverter * my_cconvert_ptr; + + +/**************** YCbCr -> RGB conversion: most common case **************/ +/**************** RGB -> Y conversion: less common case **************/ + +/* + * YCbCr is defined per CCIR 601-1, except that Cb and Cr are + * normalized to the range 0..MAXJSAMPLE rather than -0.5 .. 0.5. + * The conversion equations to be implemented are therefore + * + * R = Y + 1.40200 * Cr + * G = Y - 0.34414 * Cb - 0.71414 * Cr + * B = Y + 1.77200 * Cb + * + * Y = 0.29900 * R + 0.58700 * G + 0.11400 * B + * + * where Cb and Cr represent the incoming values less CENTERJSAMPLE. + * (These numbers are derived from TIFF 6.0 section 21, dated 3-June-92.) + * + * To avoid floating-point arithmetic, we represent the fractional constants + * as integers scaled up by 2^16 (about 4 digits precision); we have to divide + * the products by 2^16, with appropriate rounding, to get the correct answer. + * Notice that Y, being an integral input, does not contribute any fraction + * so it need not participate in the rounding. + * + * For even more speed, we avoid doing any multiplications in the inner loop + * by precalculating the constants times Cb and Cr for all possible values. + * For 8-bit JSAMPLEs this is very reasonable (only 256 entries per table); + * for 12-bit samples it is still acceptable. It's not very reasonable for + * 16-bit samples, but if you want lossless storage you shouldn't be changing + * colorspace anyway. + * The Cr=>R and Cb=>B values can be rounded to integers in advance; the + * values for the G calculation are left scaled up, since we must add them + * together before rounding. + */ + +#define SCALEBITS 16 /* speediest right-shift on some machines */ +#define ONE_HALF ((INT32) 1 << (SCALEBITS-1)) +#define FIX(x) ((INT32) ((x) * (1L<Y conversion and divide it up into + * three parts, instead of doing three alloc_small requests. This lets us + * use a single table base address, which can be held in a register in the + * inner loops on many machines (more than can hold all three addresses, + * anyway). + */ + +#define R_Y_OFF 0 /* offset to R => Y section */ +#define G_Y_OFF (1*(MAXJSAMPLE+1)) /* offset to G => Y section */ +#define B_Y_OFF (2*(MAXJSAMPLE+1)) /* etc. */ +#define TABLE_SIZE (3*(MAXJSAMPLE+1)) + + +/* + * Initialize tables for YCC->RGB colorspace conversion. + */ + +LOCAL(void) +build_ycc_rgb_table (j_decompress_ptr cinfo) +{ + my_cconvert_ptr cconvert = (my_cconvert_ptr) cinfo->cconvert; + int i; + INT32 x; + SHIFT_TEMPS + + cconvert->Cr_r_tab = (int *) + (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, + (MAXJSAMPLE+1) * SIZEOF(int)); + cconvert->Cb_b_tab = (int *) + (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, + (MAXJSAMPLE+1) * SIZEOF(int)); + cconvert->Cr_g_tab = (INT32 *) + (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, + (MAXJSAMPLE+1) * SIZEOF(INT32)); + cconvert->Cb_g_tab = (INT32 *) + (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, + (MAXJSAMPLE+1) * SIZEOF(INT32)); + + for (i = 0, x = -CENTERJSAMPLE; i <= MAXJSAMPLE; i++, x++) { + /* i is the actual input pixel value, in the range 0..MAXJSAMPLE */ + /* The Cb or Cr value we are thinking of is x = i - CENTERJSAMPLE */ + /* Cr=>R value is nearest int to 1.40200 * x */ + cconvert->Cr_r_tab[i] = (int) + RIGHT_SHIFT(FIX(1.40200) * x + ONE_HALF, SCALEBITS); + /* Cb=>B value is nearest int to 1.77200 * x */ + cconvert->Cb_b_tab[i] = (int) + RIGHT_SHIFT(FIX(1.77200) * x + ONE_HALF, SCALEBITS); + /* Cr=>G value is scaled-up -0.71414 * x */ + cconvert->Cr_g_tab[i] = (- FIX(0.71414)) * x; + /* Cb=>G value is scaled-up -0.34414 * x */ + /* We also add in ONE_HALF so that need not do it in inner loop */ + cconvert->Cb_g_tab[i] = (- FIX(0.34414)) * x + ONE_HALF; + } +} + + +/* + * Convert some rows of samples to the output colorspace. + * + * Note that we change from noninterleaved, one-plane-per-component format + * to interleaved-pixel format. The output buffer is therefore three times + * as wide as the input buffer. + * A starting row offset is provided only for the input buffer. The caller + * can easily adjust the passed output_buf value to accommodate any row + * offset required on that side. + */ + +METHODDEF(void) +ycc_rgb_convert (j_decompress_ptr cinfo, + JSAMPIMAGE input_buf, JDIMENSION input_row, + JSAMPARRAY output_buf, int num_rows) +{ + my_cconvert_ptr cconvert = (my_cconvert_ptr) cinfo->cconvert; + register int y, cb, cr; + register JSAMPROW outptr; + register JSAMPROW inptr0, inptr1, inptr2; + register JDIMENSION col; + JDIMENSION num_cols = cinfo->output_width; + /* copy these pointers into registers if possible */ + register JSAMPLE * range_limit = cinfo->sample_range_limit; + register int * Crrtab = cconvert->Cr_r_tab; + register int * Cbbtab = cconvert->Cb_b_tab; + register INT32 * Crgtab = cconvert->Cr_g_tab; + register INT32 * Cbgtab = cconvert->Cb_g_tab; + SHIFT_TEMPS + + while (--num_rows >= 0) { + inptr0 = input_buf[0][input_row]; + inptr1 = input_buf[1][input_row]; + inptr2 = input_buf[2][input_row]; + input_row++; + outptr = *output_buf++; + for (col = 0; col < num_cols; col++) { + y = GETJSAMPLE(inptr0[col]); + cb = GETJSAMPLE(inptr1[col]); + cr = GETJSAMPLE(inptr2[col]); + /* Range-limiting is essential due to noise introduced by DCT losses. */ + outptr[RGB_RED] = range_limit[y + Crrtab[cr]]; + outptr[RGB_GREEN] = range_limit[y + + ((int) RIGHT_SHIFT(Cbgtab[cb] + Crgtab[cr], + SCALEBITS))]; + outptr[RGB_BLUE] = range_limit[y + Cbbtab[cb]]; + outptr += RGB_PIXELSIZE; + } + } +} + + +/**************** Cases other than YCbCr -> RGB **************/ + + +/* + * Initialize for RGB->grayscale colorspace conversion. + */ + +LOCAL(void) +build_rgb_y_table (j_decompress_ptr cinfo) +{ + my_cconvert_ptr cconvert = (my_cconvert_ptr) cinfo->cconvert; + INT32 * rgb_y_tab; + INT32 i; + + /* Allocate and fill in the conversion tables. */ + cconvert->rgb_y_tab = rgb_y_tab = (INT32 *) + (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, + (TABLE_SIZE * SIZEOF(INT32))); + + for (i = 0; i <= MAXJSAMPLE; i++) { + rgb_y_tab[i+R_Y_OFF] = FIX(0.29900) * i; + rgb_y_tab[i+G_Y_OFF] = FIX(0.58700) * i; + rgb_y_tab[i+B_Y_OFF] = FIX(0.11400) * i + ONE_HALF; + } +} + + +/* + * Convert RGB to grayscale. + */ + +METHODDEF(void) +rgb_gray_convert (j_decompress_ptr cinfo, + JSAMPIMAGE input_buf, JDIMENSION input_row, + JSAMPARRAY output_buf, int num_rows) +{ + my_cconvert_ptr cconvert = (my_cconvert_ptr) cinfo->cconvert; + register int r, g, b; + register INT32 * ctab = cconvert->rgb_y_tab; + register JSAMPROW outptr; + register JSAMPROW inptr0, inptr1, inptr2; + register JDIMENSION col; + JDIMENSION num_cols = cinfo->output_width; + + while (--num_rows >= 0) { + inptr0 = input_buf[0][input_row]; + inptr1 = input_buf[1][input_row]; + inptr2 = input_buf[2][input_row]; + input_row++; + outptr = *output_buf++; + for (col = 0; col < num_cols; col++) { + r = GETJSAMPLE(inptr0[col]); + g = GETJSAMPLE(inptr1[col]); + b = GETJSAMPLE(inptr2[col]); + /* Y */ + outptr[col] = (JSAMPLE) + ((ctab[r+R_Y_OFF] + ctab[g+G_Y_OFF] + ctab[b+B_Y_OFF]) + >> SCALEBITS); + } + } +} + + +/* + * No colorspace change, but conversion from separate-planes + * to interleaved representation. + */ + +METHODDEF(void) +rgb_convert (j_decompress_ptr cinfo, + JSAMPIMAGE input_buf, JDIMENSION input_row, + JSAMPARRAY output_buf, int num_rows) +{ + register JSAMPROW outptr; + register JSAMPROW inptr0, inptr1, inptr2; + register JDIMENSION col; + JDIMENSION num_cols = cinfo->output_width; + + while (--num_rows >= 0) { + inptr0 = input_buf[0][input_row]; + inptr1 = input_buf[1][input_row]; + inptr2 = input_buf[2][input_row]; + input_row++; + outptr = *output_buf++; + for (col = 0; col < num_cols; col++) { + /* We can dispense with GETJSAMPLE() here */ + outptr[RGB_RED] = inptr0[col]; + outptr[RGB_GREEN] = inptr1[col]; + outptr[RGB_BLUE] = inptr2[col]; + outptr += RGB_PIXELSIZE; + } + } +} + + +/* + * Color conversion for no colorspace change: just copy the data, + * converting from separate-planes to interleaved representation. + */ + +METHODDEF(void) +null_convert (j_decompress_ptr cinfo, + JSAMPIMAGE input_buf, JDIMENSION input_row, + JSAMPARRAY output_buf, int num_rows) +{ + register JSAMPROW inptr, outptr; + register JDIMENSION count; + register int num_components = cinfo->num_components; + JDIMENSION num_cols = cinfo->output_width; + int ci; + + while (--num_rows >= 0) { + for (ci = 0; ci < num_components; ci++) { + inptr = input_buf[ci][input_row]; + outptr = output_buf[0] + ci; + for (count = num_cols; count > 0; count--) { + *outptr = *inptr++; /* needn't bother with GETJSAMPLE() here */ + outptr += num_components; + } + } + input_row++; + output_buf++; + } +} + + +/* + * Color conversion for grayscale: just copy the data. + * This also works for YCbCr -> grayscale conversion, in which + * we just copy the Y (luminance) component and ignore chrominance. + */ + +METHODDEF(void) +grayscale_convert (j_decompress_ptr cinfo, + JSAMPIMAGE input_buf, JDIMENSION input_row, + JSAMPARRAY output_buf, int num_rows) +{ + jcopy_sample_rows(input_buf[0], (int) input_row, output_buf, 0, + num_rows, cinfo->output_width); +} + + +/* + * Convert grayscale to RGB: just duplicate the graylevel three times. + * This is provided to support applications that don't want to cope + * with grayscale as a separate case. + */ + +METHODDEF(void) +gray_rgb_convert (j_decompress_ptr cinfo, + JSAMPIMAGE input_buf, JDIMENSION input_row, + JSAMPARRAY output_buf, int num_rows) +{ + register JSAMPROW inptr, outptr; + register JDIMENSION col; + JDIMENSION num_cols = cinfo->output_width; + + while (--num_rows >= 0) { + inptr = input_buf[0][input_row++]; + outptr = *output_buf++; + for (col = 0; col < num_cols; col++) { + /* We can dispense with GETJSAMPLE() here */ + outptr[RGB_RED] = outptr[RGB_GREEN] = outptr[RGB_BLUE] = inptr[col]; + outptr += RGB_PIXELSIZE; + } + } +} + + +/* + * Adobe-style YCCK->CMYK conversion. + * We convert YCbCr to R=1-C, G=1-M, and B=1-Y using the same + * conversion as above, while passing K (black) unchanged. + * We assume build_ycc_rgb_table has been called. + */ + +METHODDEF(void) +ycck_cmyk_convert (j_decompress_ptr cinfo, + JSAMPIMAGE input_buf, JDIMENSION input_row, + JSAMPARRAY output_buf, int num_rows) +{ + my_cconvert_ptr cconvert = (my_cconvert_ptr) cinfo->cconvert; + register int y, cb, cr; + register JSAMPROW outptr; + register JSAMPROW inptr0, inptr1, inptr2, inptr3; + register JDIMENSION col; + JDIMENSION num_cols = cinfo->output_width; + /* copy these pointers into registers if possible */ + register JSAMPLE * range_limit = cinfo->sample_range_limit; + register int * Crrtab = cconvert->Cr_r_tab; + register int * Cbbtab = cconvert->Cb_b_tab; + register INT32 * Crgtab = cconvert->Cr_g_tab; + register INT32 * Cbgtab = cconvert->Cb_g_tab; + SHIFT_TEMPS + + while (--num_rows >= 0) { + inptr0 = input_buf[0][input_row]; + inptr1 = input_buf[1][input_row]; + inptr2 = input_buf[2][input_row]; + inptr3 = input_buf[3][input_row]; + input_row++; + outptr = *output_buf++; + for (col = 0; col < num_cols; col++) { + y = GETJSAMPLE(inptr0[col]); + cb = GETJSAMPLE(inptr1[col]); + cr = GETJSAMPLE(inptr2[col]); + /* Range-limiting is essential due to noise introduced by DCT losses. */ + outptr[0] = range_limit[MAXJSAMPLE - (y + Crrtab[cr])]; /* red */ + outptr[1] = range_limit[MAXJSAMPLE - (y + /* green */ + ((int) RIGHT_SHIFT(Cbgtab[cb] + Crgtab[cr], + SCALEBITS)))]; + outptr[2] = range_limit[MAXJSAMPLE - (y + Cbbtab[cb])]; /* blue */ + /* K passes through unchanged */ + outptr[3] = inptr3[col]; /* don't need GETJSAMPLE here */ + outptr += 4; + } + } +} + + +/* + * Empty method for start_pass. + */ + +METHODDEF(void) +start_pass_dcolor (j_decompress_ptr cinfo) +{ + /* no work needed */ +} + + +/* + * Module initialization routine for output colorspace conversion. + */ + +GLOBAL(void) +jinit_color_deconverter (j_decompress_ptr cinfo) +{ + my_cconvert_ptr cconvert; + int ci; + + cconvert = (my_cconvert_ptr) + (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, + SIZEOF(my_color_deconverter)); + cinfo->cconvert = (struct jpeg_color_deconverter *) cconvert; + cconvert->pub.start_pass = start_pass_dcolor; + + /* Make sure num_components agrees with jpeg_color_space */ + switch (cinfo->jpeg_color_space) { + case JCS_GRAYSCALE: + if (cinfo->num_components != 1) + ERREXIT(cinfo, JERR_BAD_J_COLORSPACE); + break; + + case JCS_RGB: + case JCS_YCbCr: + if (cinfo->num_components != 3) + ERREXIT(cinfo, JERR_BAD_J_COLORSPACE); + break; + + case JCS_CMYK: + case JCS_YCCK: + if (cinfo->num_components != 4) + ERREXIT(cinfo, JERR_BAD_J_COLORSPACE); + break; + + default: /* JCS_UNKNOWN can be anything */ + if (cinfo->num_components < 1) + ERREXIT(cinfo, JERR_BAD_J_COLORSPACE); + break; + } + + /* Set out_color_components and conversion method based on requested space. + * Also clear the component_needed flags for any unused components, + * so that earlier pipeline stages can avoid useless computation. + */ + + switch (cinfo->out_color_space) { + case JCS_GRAYSCALE: + cinfo->out_color_components = 1; + if (cinfo->jpeg_color_space == JCS_GRAYSCALE || + cinfo->jpeg_color_space == JCS_YCbCr) { + cconvert->pub.color_convert = grayscale_convert; + /* For color->grayscale conversion, only the Y (0) component is needed */ + for (ci = 1; ci < cinfo->num_components; ci++) + cinfo->comp_info[ci].component_needed = FALSE; + } else if (cinfo->jpeg_color_space == JCS_RGB) { + cconvert->pub.color_convert = rgb_gray_convert; + build_rgb_y_table(cinfo); + } else + ERREXIT(cinfo, JERR_CONVERSION_NOTIMPL); + break; + + case JCS_RGB: + cinfo->out_color_components = RGB_PIXELSIZE; + if (cinfo->jpeg_color_space == JCS_YCbCr) { + cconvert->pub.color_convert = ycc_rgb_convert; + build_ycc_rgb_table(cinfo); + } else if (cinfo->jpeg_color_space == JCS_GRAYSCALE) { + cconvert->pub.color_convert = gray_rgb_convert; + } else if (cinfo->jpeg_color_space == JCS_RGB) { + cconvert->pub.color_convert = rgb_convert; + } else + ERREXIT(cinfo, JERR_CONVERSION_NOTIMPL); + break; + + case JCS_CMYK: + cinfo->out_color_components = 4; + if (cinfo->jpeg_color_space == JCS_YCCK) { + cconvert->pub.color_convert = ycck_cmyk_convert; + build_ycc_rgb_table(cinfo); + } else if (cinfo->jpeg_color_space == JCS_CMYK) { + cconvert->pub.color_convert = null_convert; + } else + ERREXIT(cinfo, JERR_CONVERSION_NOTIMPL); + break; + + default: + /* Permit null conversion to same output space */ + if (cinfo->out_color_space == cinfo->jpeg_color_space) { + cinfo->out_color_components = cinfo->num_components; + cconvert->pub.color_convert = null_convert; + } else /* unsupported non-null conversion */ + ERREXIT(cinfo, JERR_CONVERSION_NOTIMPL); + break; + } + + if (cinfo->quantize_colors) + cinfo->output_components = 1; /* single colormapped output component */ + else + cinfo->output_components = cinfo->out_color_components; +} diff --git a/jpeg/jdct.h b/jpeg/jdct.h new file mode 100644 index 0000000..360dec8 --- /dev/null +++ b/jpeg/jdct.h @@ -0,0 +1,393 @@ +/* + * jdct.h + * + * Copyright (C) 1994-1996, Thomas G. Lane. + * This file is part of the Independent JPEG Group's software. + * For conditions of distribution and use, see the accompanying README file. + * + * This include file contains common declarations for the forward and + * inverse DCT modules. These declarations are private to the DCT managers + * (jcdctmgr.c, jddctmgr.c) and the individual DCT algorithms. + * The individual DCT algorithms are kept in separate files to ease + * machine-dependent tuning (e.g., assembly coding). + */ + + +/* + * A forward DCT routine is given a pointer to an input sample array and + * a pointer to a work area of type DCTELEM[]; the DCT is to be performed + * in-place in that buffer. Type DCTELEM is int for 8-bit samples, INT32 + * for 12-bit samples. (NOTE: Floating-point DCT implementations use an + * array of type FAST_FLOAT, instead.) + * The input data is to be fetched from the sample array starting at a + * specified column. (Any row offset needed will be applied to the array + * pointer before it is passed to the FDCT code.) + * Note that the number of samples fetched by the FDCT routine is + * DCT_h_scaled_size * DCT_v_scaled_size. + * The DCT outputs are returned scaled up by a factor of 8; they therefore + * have a range of +-8K for 8-bit data, +-128K for 12-bit data. This + * convention improves accuracy in integer implementations and saves some + * work in floating-point ones. + * Quantization of the output coefficients is done by jcdctmgr.c. + */ + +#if BITS_IN_JSAMPLE == 8 +typedef int DCTELEM; /* 16 or 32 bits is fine */ +#else +typedef INT32 DCTELEM; /* must have 32 bits */ +#endif + +typedef JMETHOD(void, forward_DCT_method_ptr, (DCTELEM * data, + JSAMPARRAY sample_data, + JDIMENSION start_col)); +typedef JMETHOD(void, float_DCT_method_ptr, (FAST_FLOAT * data, + JSAMPARRAY sample_data, + JDIMENSION start_col)); + + +/* + * An inverse DCT routine is given a pointer to the input JBLOCK and a pointer + * to an output sample array. The routine must dequantize the input data as + * well as perform the IDCT; for dequantization, it uses the multiplier table + * pointed to by compptr->dct_table. The output data is to be placed into the + * sample array starting at a specified column. (Any row offset needed will + * be applied to the array pointer before it is passed to the IDCT code.) + * Note that the number of samples emitted by the IDCT routine is + * DCT_h_scaled_size * DCT_v_scaled_size. + */ + +/* typedef inverse_DCT_method_ptr is declared in jpegint.h */ + +/* + * Each IDCT routine has its own ideas about the best dct_table element type. + */ + +typedef MULTIPLIER ISLOW_MULT_TYPE; /* short or int, whichever is faster */ +#if BITS_IN_JSAMPLE == 8 +typedef MULTIPLIER IFAST_MULT_TYPE; /* 16 bits is OK, use short if faster */ +#define IFAST_SCALE_BITS 2 /* fractional bits in scale factors */ +#else +typedef INT32 IFAST_MULT_TYPE; /* need 32 bits for scaled quantizers */ +#define IFAST_SCALE_BITS 13 /* fractional bits in scale factors */ +#endif +typedef FAST_FLOAT FLOAT_MULT_TYPE; /* preferred floating type */ + + +/* + * Each IDCT routine is responsible for range-limiting its results and + * converting them to unsigned form (0..MAXJSAMPLE). The raw outputs could + * be quite far out of range if the input data is corrupt, so a bulletproof + * range-limiting step is required. We use a mask-and-table-lookup method + * to do the combined operations quickly. See the comments with + * prepare_range_limit_table (in jdmaster.c) for more info. + */ + +#define IDCT_range_limit(cinfo) ((cinfo)->sample_range_limit + CENTERJSAMPLE) + +#define RANGE_MASK (MAXJSAMPLE * 4 + 3) /* 2 bits wider than legal samples */ + + +/* Short forms of external names for systems with brain-damaged linkers. */ + +#ifdef NEED_SHORT_EXTERNAL_NAMES +#define jpeg_fdct_islow jFDislow +#define jpeg_fdct_ifast jFDifast +#define jpeg_fdct_float jFDfloat +#define jpeg_fdct_7x7 jFD7x7 +#define jpeg_fdct_6x6 jFD6x6 +#define jpeg_fdct_5x5 jFD5x5 +#define jpeg_fdct_4x4 jFD4x4 +#define jpeg_fdct_3x3 jFD3x3 +#define jpeg_fdct_2x2 jFD2x2 +#define jpeg_fdct_1x1 jFD1x1 +#define jpeg_fdct_9x9 jFD9x9 +#define jpeg_fdct_10x10 jFD10x10 +#define jpeg_fdct_11x11 jFD11x11 +#define jpeg_fdct_12x12 jFD12x12 +#define jpeg_fdct_13x13 jFD13x13 +#define jpeg_fdct_14x14 jFD14x14 +#define jpeg_fdct_15x15 jFD15x15 +#define jpeg_fdct_16x16 jFD16x16 +#define jpeg_fdct_16x8 jFD16x8 +#define jpeg_fdct_14x7 jFD14x7 +#define jpeg_fdct_12x6 jFD12x6 +#define jpeg_fdct_10x5 jFD10x5 +#define jpeg_fdct_8x4 jFD8x4 +#define jpeg_fdct_6x3 jFD6x3 +#define jpeg_fdct_4x2 jFD4x2 +#define jpeg_fdct_2x1 jFD2x1 +#define jpeg_fdct_8x16 jFD8x16 +#define jpeg_fdct_7x14 jFD7x14 +#define jpeg_fdct_6x12 jFD6x12 +#define jpeg_fdct_5x10 jFD5x10 +#define jpeg_fdct_4x8 jFD4x8 +#define jpeg_fdct_3x6 jFD3x6 +#define jpeg_fdct_2x4 jFD2x4 +#define jpeg_fdct_1x2 jFD1x2 +#define jpeg_idct_islow jRDislow +#define jpeg_idct_ifast jRDifast +#define jpeg_idct_float jRDfloat +#define jpeg_idct_7x7 jRD7x7 +#define jpeg_idct_6x6 jRD6x6 +#define jpeg_idct_5x5 jRD5x5 +#define jpeg_idct_4x4 jRD4x4 +#define jpeg_idct_3x3 jRD3x3 +#define jpeg_idct_2x2 jRD2x2 +#define jpeg_idct_1x1 jRD1x1 +#define jpeg_idct_9x9 jRD9x9 +#define jpeg_idct_10x10 jRD10x10 +#define jpeg_idct_11x11 jRD11x11 +#define jpeg_idct_12x12 jRD12x12 +#define jpeg_idct_13x13 jRD13x13 +#define jpeg_idct_14x14 jRD14x14 +#define jpeg_idct_15x15 jRD15x15 +#define jpeg_idct_16x16 jRD16x16 +#define jpeg_idct_16x8 jRD16x8 +#define jpeg_idct_14x7 jRD14x7 +#define jpeg_idct_12x6 jRD12x6 +#define jpeg_idct_10x5 jRD10x5 +#define jpeg_idct_8x4 jRD8x4 +#define jpeg_idct_6x3 jRD6x3 +#define jpeg_idct_4x2 jRD4x2 +#define jpeg_idct_2x1 jRD2x1 +#define jpeg_idct_8x16 jRD8x16 +#define jpeg_idct_7x14 jRD7x14 +#define jpeg_idct_6x12 jRD6x12 +#define jpeg_idct_5x10 jRD5x10 +#define jpeg_idct_4x8 jRD4x8 +#define jpeg_idct_3x6 jRD3x8 +#define jpeg_idct_2x4 jRD2x4 +#define jpeg_idct_1x2 jRD1x2 +#endif /* NEED_SHORT_EXTERNAL_NAMES */ + +/* Extern declarations for the forward and inverse DCT routines. */ + +EXTERN(void) jpeg_fdct_islow + JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col)); +EXTERN(void) jpeg_fdct_ifast + JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col)); +EXTERN(void) jpeg_fdct_float + JPP((FAST_FLOAT * data, JSAMPARRAY sample_data, JDIMENSION start_col)); +EXTERN(void) jpeg_fdct_7x7 + JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col)); +EXTERN(void) jpeg_fdct_6x6 + JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col)); +EXTERN(void) jpeg_fdct_5x5 + JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col)); +EXTERN(void) jpeg_fdct_4x4 + JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col)); +EXTERN(void) jpeg_fdct_3x3 + JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col)); +EXTERN(void) jpeg_fdct_2x2 + JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col)); +EXTERN(void) jpeg_fdct_1x1 + JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col)); +EXTERN(void) jpeg_fdct_9x9 + JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col)); +EXTERN(void) jpeg_fdct_10x10 + JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col)); +EXTERN(void) jpeg_fdct_11x11 + JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col)); +EXTERN(void) jpeg_fdct_12x12 + JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col)); +EXTERN(void) jpeg_fdct_13x13 + JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col)); +EXTERN(void) jpeg_fdct_14x14 + JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col)); +EXTERN(void) jpeg_fdct_15x15 + JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col)); +EXTERN(void) jpeg_fdct_16x16 + JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col)); +EXTERN(void) jpeg_fdct_16x8 + JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col)); +EXTERN(void) jpeg_fdct_14x7 + JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col)); +EXTERN(void) jpeg_fdct_12x6 + JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col)); +EXTERN(void) jpeg_fdct_10x5 + JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col)); +EXTERN(void) jpeg_fdct_8x4 + JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col)); +EXTERN(void) jpeg_fdct_6x3 + JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col)); +EXTERN(void) jpeg_fdct_4x2 + JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col)); +EXTERN(void) jpeg_fdct_2x1 + JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col)); +EXTERN(void) jpeg_fdct_8x16 + JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col)); +EXTERN(void) jpeg_fdct_7x14 + JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col)); +EXTERN(void) jpeg_fdct_6x12 + JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col)); +EXTERN(void) jpeg_fdct_5x10 + JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col)); +EXTERN(void) jpeg_fdct_4x8 + JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col)); +EXTERN(void) jpeg_fdct_3x6 + JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col)); +EXTERN(void) jpeg_fdct_2x4 + JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col)); +EXTERN(void) jpeg_fdct_1x2 + JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col)); + +EXTERN(void) jpeg_idct_islow + JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr, + JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col)); +EXTERN(void) jpeg_idct_ifast + JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr, + JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col)); +EXTERN(void) jpeg_idct_float + JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr, + JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col)); +EXTERN(void) jpeg_idct_7x7 + JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr, + JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col)); +EXTERN(void) jpeg_idct_6x6 + JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr, + JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col)); +EXTERN(void) jpeg_idct_5x5 + JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr, + JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col)); +EXTERN(void) jpeg_idct_4x4 + JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr, + JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col)); +EXTERN(void) jpeg_idct_3x3 + JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr, + JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col)); +EXTERN(void) jpeg_idct_2x2 + JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr, + JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col)); +EXTERN(void) jpeg_idct_1x1 + JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr, + JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col)); +EXTERN(void) jpeg_idct_9x9 + JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr, + JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col)); +EXTERN(void) jpeg_idct_10x10 + JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr, + JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col)); +EXTERN(void) jpeg_idct_11x11 + JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr, + JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col)); +EXTERN(void) jpeg_idct_12x12 + JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr, + JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col)); +EXTERN(void) jpeg_idct_13x13 + JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr, + JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col)); +EXTERN(void) jpeg_idct_14x14 + JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr, + JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col)); +EXTERN(void) jpeg_idct_15x15 + JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr, + JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col)); +EXTERN(void) jpeg_idct_16x16 + JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr, + JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col)); +EXTERN(void) jpeg_idct_16x8 + JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr, + JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col)); +EXTERN(void) jpeg_idct_14x7 + JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr, + JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col)); +EXTERN(void) jpeg_idct_12x6 + JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr, + JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col)); +EXTERN(void) jpeg_idct_10x5 + JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr, + JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col)); +EXTERN(void) jpeg_idct_8x4 + JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr, + JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col)); +EXTERN(void) jpeg_idct_6x3 + JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr, + JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col)); +EXTERN(void) jpeg_idct_4x2 + JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr, + JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col)); +EXTERN(void) jpeg_idct_2x1 + JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr, + JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col)); +EXTERN(void) jpeg_idct_8x16 + JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr, + JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col)); +EXTERN(void) jpeg_idct_7x14 + JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr, + JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col)); +EXTERN(void) jpeg_idct_6x12 + JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr, + JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col)); +EXTERN(void) jpeg_idct_5x10 + JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr, + JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col)); +EXTERN(void) jpeg_idct_4x8 + JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr, + JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col)); +EXTERN(void) jpeg_idct_3x6 + JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr, + JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col)); +EXTERN(void) jpeg_idct_2x4 + JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr, + JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col)); +EXTERN(void) jpeg_idct_1x2 + JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr, + JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col)); + + +/* + * Macros for handling fixed-point arithmetic; these are used by many + * but not all of the DCT/IDCT modules. + * + * All values are expected to be of type INT32. + * Fractional constants are scaled left by CONST_BITS bits. + * CONST_BITS is defined within each module using these macros, + * and may differ from one module to the next. + */ + +#define ONE ((INT32) 1) +#define CONST_SCALE (ONE << CONST_BITS) + +/* Convert a positive real constant to an integer scaled by CONST_SCALE. + * Caution: some C compilers fail to reduce "FIX(constant)" at compile time, + * thus causing a lot of useless floating-point operations at run time. + */ + +#define FIX(x) ((INT32) ((x) * CONST_SCALE + 0.5)) + +/* Descale and correctly round an INT32 value that's scaled by N bits. + * We assume RIGHT_SHIFT rounds towards minus infinity, so adding + * the fudge factor is correct for either sign of X. + */ + +#define DESCALE(x,n) RIGHT_SHIFT((x) + (ONE << ((n)-1)), n) + +/* Multiply an INT32 variable by an INT32 constant to yield an INT32 result. + * This macro is used only when the two inputs will actually be no more than + * 16 bits wide, so that a 16x16->32 bit multiply can be used instead of a + * full 32x32 multiply. This provides a useful speedup on many machines. + * Unfortunately there is no way to specify a 16x16->32 multiply portably + * in C, but some C compilers will do the right thing if you provide the + * correct combination of casts. + */ + +#ifdef SHORTxSHORT_32 /* may work if 'int' is 32 bits */ +#define MULTIPLY16C16(var,const) (((INT16) (var)) * ((INT16) (const))) +#endif +#ifdef SHORTxLCONST_32 /* known to work with Microsoft C 6.0 */ +#define MULTIPLY16C16(var,const) (((INT16) (var)) * ((INT32) (const))) +#endif + +#ifndef MULTIPLY16C16 /* default definition */ +#define MULTIPLY16C16(var,const) ((var) * (const)) +#endif + +/* Same except both inputs are variables. */ + +#ifdef SHORTxSHORT_32 /* may work if 'int' is 32 bits */ +#define MULTIPLY16V16(var1,var2) (((INT16) (var1)) * ((INT16) (var2))) +#endif + +#ifndef MULTIPLY16V16 /* default definition */ +#define MULTIPLY16V16(var1,var2) ((var1) * (var2)) +#endif diff --git a/jpeg/jddctmgr.c b/jpeg/jddctmgr.c new file mode 100644 index 0000000..0ded9d5 --- /dev/null +++ b/jpeg/jddctmgr.c @@ -0,0 +1,384 @@ +/* + * jddctmgr.c + * + * Copyright (C) 1994-1996, Thomas G. Lane. + * Modified 2002-2010 by Guido Vollbeding. + * This file is part of the Independent JPEG Group's software. + * For conditions of distribution and use, see the accompanying README file. + * + * This file contains the inverse-DCT management logic. + * This code selects a particular IDCT implementation to be used, + * and it performs related housekeeping chores. No code in this file + * is executed per IDCT step, only during output pass setup. + * + * Note that the IDCT routines are responsible for performing coefficient + * dequantization as well as the IDCT proper. This module sets up the + * dequantization multiplier table needed by the IDCT routine. + */ + +#define JPEG_INTERNALS +#include "jinclude.h" +#include "jpeglib.h" +#include "jdct.h" /* Private declarations for DCT subsystem */ + + +/* + * The decompressor input side (jdinput.c) saves away the appropriate + * quantization table for each component at the start of the first scan + * involving that component. (This is necessary in order to correctly + * decode files that reuse Q-table slots.) + * When we are ready to make an output pass, the saved Q-table is converted + * to a multiplier table that will actually be used by the IDCT routine. + * The multiplier table contents are IDCT-method-dependent. To support + * application changes in IDCT method between scans, we can remake the + * multiplier tables if necessary. + * In buffered-image mode, the first output pass may occur before any data + * has been seen for some components, and thus before their Q-tables have + * been saved away. To handle this case, multiplier tables are preset + * to zeroes; the result of the IDCT will be a neutral gray level. + */ + + +/* Private subobject for this module */ + +typedef struct { + struct jpeg_inverse_dct pub; /* public fields */ + + /* This array contains the IDCT method code that each multiplier table + * is currently set up for, or -1 if it's not yet set up. + * The actual multiplier tables are pointed to by dct_table in the + * per-component comp_info structures. + */ + int cur_method[MAX_COMPONENTS]; +} my_idct_controller; + +typedef my_idct_controller * my_idct_ptr; + + +/* Allocated multiplier tables: big enough for any supported variant */ + +typedef union { + ISLOW_MULT_TYPE islow_array[DCTSIZE2]; +#ifdef DCT_IFAST_SUPPORTED + IFAST_MULT_TYPE ifast_array[DCTSIZE2]; +#endif +#ifdef DCT_FLOAT_SUPPORTED + FLOAT_MULT_TYPE float_array[DCTSIZE2]; +#endif +} multiplier_table; + + +/* The current scaled-IDCT routines require ISLOW-style multiplier tables, + * so be sure to compile that code if either ISLOW or SCALING is requested. + */ +#ifdef DCT_ISLOW_SUPPORTED +#define PROVIDE_ISLOW_TABLES +#else +#ifdef IDCT_SCALING_SUPPORTED +#define PROVIDE_ISLOW_TABLES +#endif +#endif + + +/* + * Prepare for an output pass. + * Here we select the proper IDCT routine for each component and build + * a matching multiplier table. + */ + +METHODDEF(void) +start_pass (j_decompress_ptr cinfo) +{ + my_idct_ptr idct = (my_idct_ptr) cinfo->idct; + int ci, i; + jpeg_component_info *compptr; + int method = 0; + inverse_DCT_method_ptr method_ptr = NULL; + JQUANT_TBL * qtbl; + + for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components; + ci++, compptr++) { + /* Select the proper IDCT routine for this component's scaling */ + switch ((compptr->DCT_h_scaled_size << 8) + compptr->DCT_v_scaled_size) { +#ifdef IDCT_SCALING_SUPPORTED + case ((1 << 8) + 1): + method_ptr = jpeg_idct_1x1; + method = JDCT_ISLOW; /* jidctint uses islow-style table */ + break; + case ((2 << 8) + 2): + method_ptr = jpeg_idct_2x2; + method = JDCT_ISLOW; /* jidctint uses islow-style table */ + break; + case ((3 << 8) + 3): + method_ptr = jpeg_idct_3x3; + method = JDCT_ISLOW; /* jidctint uses islow-style table */ + break; + case ((4 << 8) + 4): + method_ptr = jpeg_idct_4x4; + method = JDCT_ISLOW; /* jidctint uses islow-style table */ + break; + case ((5 << 8) + 5): + method_ptr = jpeg_idct_5x5; + method = JDCT_ISLOW; /* jidctint uses islow-style table */ + break; + case ((6 << 8) + 6): + method_ptr = jpeg_idct_6x6; + method = JDCT_ISLOW; /* jidctint uses islow-style table */ + break; + case ((7 << 8) + 7): + method_ptr = jpeg_idct_7x7; + method = JDCT_ISLOW; /* jidctint uses islow-style table */ + break; + case ((9 << 8) + 9): + method_ptr = jpeg_idct_9x9; + method = JDCT_ISLOW; /* jidctint uses islow-style table */ + break; + case ((10 << 8) + 10): + method_ptr = jpeg_idct_10x10; + method = JDCT_ISLOW; /* jidctint uses islow-style table */ + break; + case ((11 << 8) + 11): + method_ptr = jpeg_idct_11x11; + method = JDCT_ISLOW; /* jidctint uses islow-style table */ + break; + case ((12 << 8) + 12): + method_ptr = jpeg_idct_12x12; + method = JDCT_ISLOW; /* jidctint uses islow-style table */ + break; + case ((13 << 8) + 13): + method_ptr = jpeg_idct_13x13; + method = JDCT_ISLOW; /* jidctint uses islow-style table */ + break; + case ((14 << 8) + 14): + method_ptr = jpeg_idct_14x14; + method = JDCT_ISLOW; /* jidctint uses islow-style table */ + break; + case ((15 << 8) + 15): + method_ptr = jpeg_idct_15x15; + method = JDCT_ISLOW; /* jidctint uses islow-style table */ + break; + case ((16 << 8) + 16): + method_ptr = jpeg_idct_16x16; + method = JDCT_ISLOW; /* jidctint uses islow-style table */ + break; + case ((16 << 8) + 8): + method_ptr = jpeg_idct_16x8; + method = JDCT_ISLOW; /* jidctint uses islow-style table */ + break; + case ((14 << 8) + 7): + method_ptr = jpeg_idct_14x7; + method = JDCT_ISLOW; /* jidctint uses islow-style table */ + break; + case ((12 << 8) + 6): + method_ptr = jpeg_idct_12x6; + method = JDCT_ISLOW; /* jidctint uses islow-style table */ + break; + case ((10 << 8) + 5): + method_ptr = jpeg_idct_10x5; + method = JDCT_ISLOW; /* jidctint uses islow-style table */ + break; + case ((8 << 8) + 4): + method_ptr = jpeg_idct_8x4; + method = JDCT_ISLOW; /* jidctint uses islow-style table */ + break; + case ((6 << 8) + 3): + method_ptr = jpeg_idct_6x3; + method = JDCT_ISLOW; /* jidctint uses islow-style table */ + break; + case ((4 << 8) + 2): + method_ptr = jpeg_idct_4x2; + method = JDCT_ISLOW; /* jidctint uses islow-style table */ + break; + case ((2 << 8) + 1): + method_ptr = jpeg_idct_2x1; + method = JDCT_ISLOW; /* jidctint uses islow-style table */ + break; + case ((8 << 8) + 16): + method_ptr = jpeg_idct_8x16; + method = JDCT_ISLOW; /* jidctint uses islow-style table */ + break; + case ((7 << 8) + 14): + method_ptr = jpeg_idct_7x14; + method = JDCT_ISLOW; /* jidctint uses islow-style table */ + break; + case ((6 << 8) + 12): + method_ptr = jpeg_idct_6x12; + method = JDCT_ISLOW; /* jidctint uses islow-style table */ + break; + case ((5 << 8) + 10): + method_ptr = jpeg_idct_5x10; + method = JDCT_ISLOW; /* jidctint uses islow-style table */ + break; + case ((4 << 8) + 8): + method_ptr = jpeg_idct_4x8; + method = JDCT_ISLOW; /* jidctint uses islow-style table */ + break; + case ((3 << 8) + 6): + method_ptr = jpeg_idct_3x6; + method = JDCT_ISLOW; /* jidctint uses islow-style table */ + break; + case ((2 << 8) + 4): + method_ptr = jpeg_idct_2x4; + method = JDCT_ISLOW; /* jidctint uses islow-style table */ + break; + case ((1 << 8) + 2): + method_ptr = jpeg_idct_1x2; + method = JDCT_ISLOW; /* jidctint uses islow-style table */ + break; +#endif + case ((DCTSIZE << 8) + DCTSIZE): + switch (cinfo->dct_method) { +#ifdef DCT_ISLOW_SUPPORTED + case JDCT_ISLOW: + method_ptr = jpeg_idct_islow; + method = JDCT_ISLOW; + break; +#endif +#ifdef DCT_IFAST_SUPPORTED + case JDCT_IFAST: + method_ptr = jpeg_idct_ifast; + method = JDCT_IFAST; + break; +#endif +#ifdef DCT_FLOAT_SUPPORTED + case JDCT_FLOAT: + method_ptr = jpeg_idct_float; + method = JDCT_FLOAT; + break; +#endif + default: + ERREXIT(cinfo, JERR_NOT_COMPILED); + break; + } + break; + default: + ERREXIT2(cinfo, JERR_BAD_DCTSIZE, + compptr->DCT_h_scaled_size, compptr->DCT_v_scaled_size); + break; + } + idct->pub.inverse_DCT[ci] = method_ptr; + /* Create multiplier table from quant table. + * However, we can skip this if the component is uninteresting + * or if we already built the table. Also, if no quant table + * has yet been saved for the component, we leave the + * multiplier table all-zero; we'll be reading zeroes from the + * coefficient controller's buffer anyway. + */ + if (! compptr->component_needed || idct->cur_method[ci] == method) + continue; + qtbl = compptr->quant_table; + if (qtbl == NULL) /* happens if no data yet for component */ + continue; + idct->cur_method[ci] = method; + switch (method) { +#ifdef PROVIDE_ISLOW_TABLES + case JDCT_ISLOW: + { + /* For LL&M IDCT method, multipliers are equal to raw quantization + * coefficients, but are stored as ints to ensure access efficiency. + */ + ISLOW_MULT_TYPE * ismtbl = (ISLOW_MULT_TYPE *) compptr->dct_table; + for (i = 0; i < DCTSIZE2; i++) { + ismtbl[i] = (ISLOW_MULT_TYPE) qtbl->quantval[i]; + } + } + break; +#endif +#ifdef DCT_IFAST_SUPPORTED + case JDCT_IFAST: + { + /* For AA&N IDCT method, multipliers are equal to quantization + * coefficients scaled by scalefactor[row]*scalefactor[col], where + * scalefactor[0] = 1 + * scalefactor[k] = cos(k*PI/16) * sqrt(2) for k=1..7 + * For integer operation, the multiplier table is to be scaled by + * IFAST_SCALE_BITS. + */ + IFAST_MULT_TYPE * ifmtbl = (IFAST_MULT_TYPE *) compptr->dct_table; +#define CONST_BITS 14 + static const INT16 aanscales[DCTSIZE2] = { + /* precomputed values scaled up by 14 bits */ + 16384, 22725, 21407, 19266, 16384, 12873, 8867, 4520, + 22725, 31521, 29692, 26722, 22725, 17855, 12299, 6270, + 21407, 29692, 27969, 25172, 21407, 16819, 11585, 5906, + 19266, 26722, 25172, 22654, 19266, 15137, 10426, 5315, + 16384, 22725, 21407, 19266, 16384, 12873, 8867, 4520, + 12873, 17855, 16819, 15137, 12873, 10114, 6967, 3552, + 8867, 12299, 11585, 10426, 8867, 6967, 4799, 2446, + 4520, 6270, 5906, 5315, 4520, 3552, 2446, 1247 + }; + SHIFT_TEMPS + + for (i = 0; i < DCTSIZE2; i++) { + ifmtbl[i] = (IFAST_MULT_TYPE) + DESCALE(MULTIPLY16V16((INT32) qtbl->quantval[i], + (INT32) aanscales[i]), + CONST_BITS-IFAST_SCALE_BITS); + } + } + break; +#endif +#ifdef DCT_FLOAT_SUPPORTED + case JDCT_FLOAT: + { + /* For float AA&N IDCT method, multipliers are equal to quantization + * coefficients scaled by scalefactor[row]*scalefactor[col], where + * scalefactor[0] = 1 + * scalefactor[k] = cos(k*PI/16) * sqrt(2) for k=1..7 + * We apply a further scale factor of 1/8. + */ + FLOAT_MULT_TYPE * fmtbl = (FLOAT_MULT_TYPE *) compptr->dct_table; + int row, col; + static const double aanscalefactor[DCTSIZE] = { + 1.0, 1.387039845, 1.306562965, 1.175875602, + 1.0, 0.785694958, 0.541196100, 0.275899379 + }; + + i = 0; + for (row = 0; row < DCTSIZE; row++) { + for (col = 0; col < DCTSIZE; col++) { + fmtbl[i] = (FLOAT_MULT_TYPE) + ((double) qtbl->quantval[i] * + aanscalefactor[row] * aanscalefactor[col] * 0.125); + i++; + } + } + } + break; +#endif + default: + ERREXIT(cinfo, JERR_NOT_COMPILED); + break; + } + } +} + + +/* + * Initialize IDCT manager. + */ + +GLOBAL(void) +jinit_inverse_dct (j_decompress_ptr cinfo) +{ + my_idct_ptr idct; + int ci; + jpeg_component_info *compptr; + + idct = (my_idct_ptr) + (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, + SIZEOF(my_idct_controller)); + cinfo->idct = (struct jpeg_inverse_dct *) idct; + idct->pub.start_pass = start_pass; + + for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components; + ci++, compptr++) { + /* Allocate and pre-zero a multiplier table for each component */ + compptr->dct_table = + (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, + SIZEOF(multiplier_table)); + MEMZERO(compptr->dct_table, SIZEOF(multiplier_table)); + /* Mark multiplier table not yet set up for any method */ + idct->cur_method[ci] = -1; + } +} diff --git a/jpeg/jdhuff.c b/jpeg/jdhuff.c new file mode 100644 index 0000000..06f92fe --- /dev/null +++ b/jpeg/jdhuff.c @@ -0,0 +1,1541 @@ +/* + * jdhuff.c + * + * Copyright (C) 1991-1997, Thomas G. Lane. + * Modified 2006-2009 by Guido Vollbeding. + * This file is part of the Independent JPEG Group's software. + * For conditions of distribution and use, see the accompanying README file. + * + * This file contains Huffman entropy decoding routines. + * Both sequential and progressive modes are supported in this single module. + * + * Much of the complexity here has to do with supporting input suspension. + * If the data source module demands suspension, we want to be able to back + * up to the start of the current MCU. To do this, we copy state variables + * into local working storage, and update them back to the permanent + * storage only upon successful completion of an MCU. + */ + +#define JPEG_INTERNALS +#include "jinclude.h" +#include "jpeglib.h" + + +/* Derived data constructed for each Huffman table */ + +#define HUFF_LOOKAHEAD 8 /* # of bits of lookahead */ + +typedef struct { + /* Basic tables: (element [0] of each array is unused) */ + INT32 maxcode[18]; /* largest code of length k (-1 if none) */ + /* (maxcode[17] is a sentinel to ensure jpeg_huff_decode terminates) */ + INT32 valoffset[17]; /* huffval[] offset for codes of length k */ + /* valoffset[k] = huffval[] index of 1st symbol of code length k, less + * the smallest code of length k; so given a code of length k, the + * corresponding symbol is huffval[code + valoffset[k]] + */ + + /* Link to public Huffman table (needed only in jpeg_huff_decode) */ + JHUFF_TBL *pub; + + /* Lookahead tables: indexed by the next HUFF_LOOKAHEAD bits of + * the input data stream. If the next Huffman code is no more + * than HUFF_LOOKAHEAD bits long, we can obtain its length and + * the corresponding symbol directly from these tables. + */ + int look_nbits[1< 32 bits on your machine, and shifting/masking longs is + * reasonably fast, making bit_buf_type be long and setting BIT_BUF_SIZE + * appropriately should be a win. Unfortunately we can't define the size + * with something like #define BIT_BUF_SIZE (sizeof(bit_buf_type)*8) + * because not all machines measure sizeof in 8-bit bytes. + */ + +typedef struct { /* Bitreading state saved across MCUs */ + bit_buf_type get_buffer; /* current bit-extraction buffer */ + int bits_left; /* # of unused bits in it */ +} bitread_perm_state; + +typedef struct { /* Bitreading working state within an MCU */ + /* Current data source location */ + /* We need a copy, rather than munging the original, in case of suspension */ + const JOCTET * next_input_byte; /* => next byte to read from source */ + size_t bytes_in_buffer; /* # of bytes remaining in source buffer */ + /* Bit input buffer --- note these values are kept in register variables, + * not in this struct, inside the inner loops. + */ + bit_buf_type get_buffer; /* current bit-extraction buffer */ + int bits_left; /* # of unused bits in it */ + /* Pointer needed by jpeg_fill_bit_buffer. */ + j_decompress_ptr cinfo; /* back link to decompress master record */ +} bitread_working_state; + +/* Macros to declare and load/save bitread local variables. */ +#define BITREAD_STATE_VARS \ + register bit_buf_type get_buffer; \ + register int bits_left; \ + bitread_working_state br_state + +#define BITREAD_LOAD_STATE(cinfop,permstate) \ + br_state.cinfo = cinfop; \ + br_state.next_input_byte = cinfop->src->next_input_byte; \ + br_state.bytes_in_buffer = cinfop->src->bytes_in_buffer; \ + get_buffer = permstate.get_buffer; \ + bits_left = permstate.bits_left; + +#define BITREAD_SAVE_STATE(cinfop,permstate) \ + cinfop->src->next_input_byte = br_state.next_input_byte; \ + cinfop->src->bytes_in_buffer = br_state.bytes_in_buffer; \ + permstate.get_buffer = get_buffer; \ + permstate.bits_left = bits_left + +/* + * These macros provide the in-line portion of bit fetching. + * Use CHECK_BIT_BUFFER to ensure there are N bits in get_buffer + * before using GET_BITS, PEEK_BITS, or DROP_BITS. + * The variables get_buffer and bits_left are assumed to be locals, + * but the state struct might not be (jpeg_huff_decode needs this). + * CHECK_BIT_BUFFER(state,n,action); + * Ensure there are N bits in get_buffer; if suspend, take action. + * val = GET_BITS(n); + * Fetch next N bits. + * val = PEEK_BITS(n); + * Fetch next N bits without removing them from the buffer. + * DROP_BITS(n); + * Discard next N bits. + * The value N should be a simple variable, not an expression, because it + * is evaluated multiple times. + */ + +#define CHECK_BIT_BUFFER(state,nbits,action) \ + { if (bits_left < (nbits)) { \ + if (! jpeg_fill_bit_buffer(&(state),get_buffer,bits_left,nbits)) \ + { action; } \ + get_buffer = (state).get_buffer; bits_left = (state).bits_left; } } + +#define GET_BITS(nbits) \ + (((int) (get_buffer >> (bits_left -= (nbits)))) & BIT_MASK(nbits)) + +#define PEEK_BITS(nbits) \ + (((int) (get_buffer >> (bits_left - (nbits)))) & BIT_MASK(nbits)) + +#define DROP_BITS(nbits) \ + (bits_left -= (nbits)) + + +/* + * Code for extracting next Huffman-coded symbol from input bit stream. + * Again, this is time-critical and we make the main paths be macros. + * + * We use a lookahead table to process codes of up to HUFF_LOOKAHEAD bits + * without looping. Usually, more than 95% of the Huffman codes will be 8 + * or fewer bits long. The few overlength codes are handled with a loop, + * which need not be inline code. + * + * Notes about the HUFF_DECODE macro: + * 1. Near the end of the data segment, we may fail to get enough bits + * for a lookahead. In that case, we do it the hard way. + * 2. If the lookahead table contains no entry, the next code must be + * more than HUFF_LOOKAHEAD bits long. + * 3. jpeg_huff_decode returns -1 if forced to suspend. + */ + +#define HUFF_DECODE(result,state,htbl,failaction,slowlabel) \ +{ register int nb, look; \ + if (bits_left < HUFF_LOOKAHEAD) { \ + if (! jpeg_fill_bit_buffer(&state,get_buffer,bits_left, 0)) {failaction;} \ + get_buffer = state.get_buffer; bits_left = state.bits_left; \ + if (bits_left < HUFF_LOOKAHEAD) { \ + nb = 1; goto slowlabel; \ + } \ + } \ + look = PEEK_BITS(HUFF_LOOKAHEAD); \ + if ((nb = htbl->look_nbits[look]) != 0) { \ + DROP_BITS(nb); \ + result = htbl->look_sym[look]; \ + } else { \ + nb = HUFF_LOOKAHEAD+1; \ +slowlabel: \ + if ((result=jpeg_huff_decode(&state,get_buffer,bits_left,htbl,nb)) < 0) \ + { failaction; } \ + get_buffer = state.get_buffer; bits_left = state.bits_left; \ + } \ +} + + +/* + * Expanded entropy decoder object for Huffman decoding. + * + * The savable_state subrecord contains fields that change within an MCU, + * but must not be updated permanently until we complete the MCU. + */ + +typedef struct { + unsigned int EOBRUN; /* remaining EOBs in EOBRUN */ + int last_dc_val[MAX_COMPS_IN_SCAN]; /* last DC coef for each component */ +} savable_state; + +/* This macro is to work around compilers with missing or broken + * structure assignment. You'll need to fix this code if you have + * such a compiler and you change MAX_COMPS_IN_SCAN. + */ + +#ifndef NO_STRUCT_ASSIGN +#define ASSIGN_STATE(dest,src) ((dest) = (src)) +#else +#if MAX_COMPS_IN_SCAN == 4 +#define ASSIGN_STATE(dest,src) \ + ((dest).EOBRUN = (src).EOBRUN, \ + (dest).last_dc_val[0] = (src).last_dc_val[0], \ + (dest).last_dc_val[1] = (src).last_dc_val[1], \ + (dest).last_dc_val[2] = (src).last_dc_val[2], \ + (dest).last_dc_val[3] = (src).last_dc_val[3]) +#endif +#endif + + +typedef struct { + struct jpeg_entropy_decoder pub; /* public fields */ + + /* These fields are loaded into local variables at start of each MCU. + * In case of suspension, we exit WITHOUT updating them. + */ + bitread_perm_state bitstate; /* Bit buffer at start of MCU */ + savable_state saved; /* Other state at start of MCU */ + + /* These fields are NOT loaded into local working state. */ + boolean insufficient_data; /* set TRUE after emitting warning */ + unsigned int restarts_to_go; /* MCUs left in this restart interval */ + + /* Following two fields used only in progressive mode */ + + /* Pointers to derived tables (these workspaces have image lifespan) */ + d_derived_tbl * derived_tbls[NUM_HUFF_TBLS]; + + d_derived_tbl * ac_derived_tbl; /* active table during an AC scan */ + + /* Following fields used only in sequential mode */ + + /* Pointers to derived tables (these workspaces have image lifespan) */ + d_derived_tbl * dc_derived_tbls[NUM_HUFF_TBLS]; + d_derived_tbl * ac_derived_tbls[NUM_HUFF_TBLS]; + + /* Precalculated info set up by start_pass for use in decode_mcu: */ + + /* Pointers to derived tables to be used for each block within an MCU */ + d_derived_tbl * dc_cur_tbls[D_MAX_BLOCKS_IN_MCU]; + d_derived_tbl * ac_cur_tbls[D_MAX_BLOCKS_IN_MCU]; + /* Whether we care about the DC and AC coefficient values for each block */ + int coef_limit[D_MAX_BLOCKS_IN_MCU]; +} huff_entropy_decoder; + +typedef huff_entropy_decoder * huff_entropy_ptr; + + +static const int jpeg_zigzag_order[8][8] = { + { 0, 1, 5, 6, 14, 15, 27, 28 }, + { 2, 4, 7, 13, 16, 26, 29, 42 }, + { 3, 8, 12, 17, 25, 30, 41, 43 }, + { 9, 11, 18, 24, 31, 40, 44, 53 }, + { 10, 19, 23, 32, 39, 45, 52, 54 }, + { 20, 22, 33, 38, 46, 51, 55, 60 }, + { 21, 34, 37, 47, 50, 56, 59, 61 }, + { 35, 36, 48, 49, 57, 58, 62, 63 } +}; + +static const int jpeg_zigzag_order7[7][7] = { + { 0, 1, 5, 6, 14, 15, 27 }, + { 2, 4, 7, 13, 16, 26, 28 }, + { 3, 8, 12, 17, 25, 29, 38 }, + { 9, 11, 18, 24, 30, 37, 39 }, + { 10, 19, 23, 31, 36, 40, 45 }, + { 20, 22, 32, 35, 41, 44, 46 }, + { 21, 33, 34, 42, 43, 47, 48 } +}; + +static const int jpeg_zigzag_order6[6][6] = { + { 0, 1, 5, 6, 14, 15 }, + { 2, 4, 7, 13, 16, 25 }, + { 3, 8, 12, 17, 24, 26 }, + { 9, 11, 18, 23, 27, 32 }, + { 10, 19, 22, 28, 31, 33 }, + { 20, 21, 29, 30, 34, 35 } +}; + +static const int jpeg_zigzag_order5[5][5] = { + { 0, 1, 5, 6, 14 }, + { 2, 4, 7, 13, 15 }, + { 3, 8, 12, 16, 21 }, + { 9, 11, 17, 20, 22 }, + { 10, 18, 19, 23, 24 } +}; + +static const int jpeg_zigzag_order4[4][4] = { + { 0, 1, 5, 6 }, + { 2, 4, 7, 12 }, + { 3, 8, 11, 13 }, + { 9, 10, 14, 15 } +}; + +static const int jpeg_zigzag_order3[3][3] = { + { 0, 1, 5 }, + { 2, 4, 6 }, + { 3, 7, 8 } +}; + +static const int jpeg_zigzag_order2[2][2] = { + { 0, 1 }, + { 2, 3 } +}; + + +/* + * Compute the derived values for a Huffman table. + * This routine also performs some validation checks on the table. + */ + +LOCAL(void) +jpeg_make_d_derived_tbl (j_decompress_ptr cinfo, boolean isDC, int tblno, + d_derived_tbl ** pdtbl) +{ + JHUFF_TBL *htbl; + d_derived_tbl *dtbl; + int p, i, l, si, numsymbols; + int lookbits, ctr; + char huffsize[257]; + unsigned int huffcode[257]; + unsigned int code; + + /* Note that huffsize[] and huffcode[] are filled in code-length order, + * paralleling the order of the symbols themselves in htbl->huffval[]. + */ + + /* Find the input Huffman table */ + if (tblno < 0 || tblno >= NUM_HUFF_TBLS) + ERREXIT1(cinfo, JERR_NO_HUFF_TABLE, tblno); + htbl = + isDC ? cinfo->dc_huff_tbl_ptrs[tblno] : cinfo->ac_huff_tbl_ptrs[tblno]; + if (htbl == NULL) + ERREXIT1(cinfo, JERR_NO_HUFF_TABLE, tblno); + + /* Allocate a workspace if we haven't already done so. */ + if (*pdtbl == NULL) + *pdtbl = (d_derived_tbl *) + (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, + SIZEOF(d_derived_tbl)); + dtbl = *pdtbl; + dtbl->pub = htbl; /* fill in back link */ + + /* Figure C.1: make table of Huffman code length for each symbol */ + + p = 0; + for (l = 1; l <= 16; l++) { + i = (int) htbl->bits[l]; + if (i < 0 || p + i > 256) /* protect against table overrun */ + ERREXIT(cinfo, JERR_BAD_HUFF_TABLE); + while (i--) + huffsize[p++] = (char) l; + } + huffsize[p] = 0; + numsymbols = p; + + /* Figure C.2: generate the codes themselves */ + /* We also validate that the counts represent a legal Huffman code tree. */ + + code = 0; + si = huffsize[0]; + p = 0; + while (huffsize[p]) { + while (((int) huffsize[p]) == si) { + huffcode[p++] = code; + code++; + } + /* code is now 1 more than the last code used for codelength si; but + * it must still fit in si bits, since no code is allowed to be all ones. + */ + if (((INT32) code) >= (((INT32) 1) << si)) + ERREXIT(cinfo, JERR_BAD_HUFF_TABLE); + code <<= 1; + si++; + } + + /* Figure F.15: generate decoding tables for bit-sequential decoding */ + + p = 0; + for (l = 1; l <= 16; l++) { + if (htbl->bits[l]) { + /* valoffset[l] = huffval[] index of 1st symbol of code length l, + * minus the minimum code of length l + */ + dtbl->valoffset[l] = (INT32) p - (INT32) huffcode[p]; + p += htbl->bits[l]; + dtbl->maxcode[l] = huffcode[p-1]; /* maximum code of length l */ + } else { + dtbl->maxcode[l] = -1; /* -1 if no codes of this length */ + } + } + dtbl->maxcode[17] = 0xFFFFFL; /* ensures jpeg_huff_decode terminates */ + + /* Compute lookahead tables to speed up decoding. + * First we set all the table entries to 0, indicating "too long"; + * then we iterate through the Huffman codes that are short enough and + * fill in all the entries that correspond to bit sequences starting + * with that code. + */ + + MEMZERO(dtbl->look_nbits, SIZEOF(dtbl->look_nbits)); + + p = 0; + for (l = 1; l <= HUFF_LOOKAHEAD; l++) { + for (i = 1; i <= (int) htbl->bits[l]; i++, p++) { + /* l = current code's length, p = its index in huffcode[] & huffval[]. */ + /* Generate left-justified code followed by all possible bit sequences */ + lookbits = huffcode[p] << (HUFF_LOOKAHEAD-l); + for (ctr = 1 << (HUFF_LOOKAHEAD-l); ctr > 0; ctr--) { + dtbl->look_nbits[lookbits] = l; + dtbl->look_sym[lookbits] = htbl->huffval[p]; + lookbits++; + } + } + } + + /* Validate symbols as being reasonable. + * For AC tables, we make no check, but accept all byte values 0..255. + * For DC tables, we require the symbols to be in range 0..15. + * (Tighter bounds could be applied depending on the data depth and mode, + * but this is sufficient to ensure safe decoding.) + */ + if (isDC) { + for (i = 0; i < numsymbols; i++) { + int sym = htbl->huffval[i]; + if (sym < 0 || sym > 15) + ERREXIT(cinfo, JERR_BAD_HUFF_TABLE); + } + } +} + + +/* + * Out-of-line code for bit fetching. + * Note: current values of get_buffer and bits_left are passed as parameters, + * but are returned in the corresponding fields of the state struct. + * + * On most machines MIN_GET_BITS should be 25 to allow the full 32-bit width + * of get_buffer to be used. (On machines with wider words, an even larger + * buffer could be used.) However, on some machines 32-bit shifts are + * quite slow and take time proportional to the number of places shifted. + * (This is true with most PC compilers, for instance.) In this case it may + * be a win to set MIN_GET_BITS to the minimum value of 15. This reduces the + * average shift distance at the cost of more calls to jpeg_fill_bit_buffer. + */ + +#ifdef SLOW_SHIFT_32 +#define MIN_GET_BITS 15 /* minimum allowable value */ +#else +#define MIN_GET_BITS (BIT_BUF_SIZE-7) +#endif + + +LOCAL(boolean) +jpeg_fill_bit_buffer (bitread_working_state * state, + register bit_buf_type get_buffer, register int bits_left, + int nbits) +/* Load up the bit buffer to a depth of at least nbits */ +{ + /* Copy heavily used state fields into locals (hopefully registers) */ + register const JOCTET * next_input_byte = state->next_input_byte; + register size_t bytes_in_buffer = state->bytes_in_buffer; + j_decompress_ptr cinfo = state->cinfo; + + /* Attempt to load at least MIN_GET_BITS bits into get_buffer. */ + /* (It is assumed that no request will be for more than that many bits.) */ + /* We fail to do so only if we hit a marker or are forced to suspend. */ + + if (cinfo->unread_marker == 0) { /* cannot advance past a marker */ + while (bits_left < MIN_GET_BITS) { + register int c; + + /* Attempt to read a byte */ + if (bytes_in_buffer == 0) { + if (! (*cinfo->src->fill_input_buffer) (cinfo)) + return FALSE; + next_input_byte = cinfo->src->next_input_byte; + bytes_in_buffer = cinfo->src->bytes_in_buffer; + } + bytes_in_buffer--; + c = GETJOCTET(*next_input_byte++); + + /* If it's 0xFF, check and discard stuffed zero byte */ + if (c == 0xFF) { + /* Loop here to discard any padding FF's on terminating marker, + * so that we can save a valid unread_marker value. NOTE: we will + * accept multiple FF's followed by a 0 as meaning a single FF data + * byte. This data pattern is not valid according to the standard. + */ + do { + if (bytes_in_buffer == 0) { + if (! (*cinfo->src->fill_input_buffer) (cinfo)) + return FALSE; + next_input_byte = cinfo->src->next_input_byte; + bytes_in_buffer = cinfo->src->bytes_in_buffer; + } + bytes_in_buffer--; + c = GETJOCTET(*next_input_byte++); + } while (c == 0xFF); + + if (c == 0) { + /* Found FF/00, which represents an FF data byte */ + c = 0xFF; + } else { + /* Oops, it's actually a marker indicating end of compressed data. + * Save the marker code for later use. + * Fine point: it might appear that we should save the marker into + * bitread working state, not straight into permanent state. But + * once we have hit a marker, we cannot need to suspend within the + * current MCU, because we will read no more bytes from the data + * source. So it is OK to update permanent state right away. + */ + cinfo->unread_marker = c; + /* See if we need to insert some fake zero bits. */ + goto no_more_bytes; + } + } + + /* OK, load c into get_buffer */ + get_buffer = (get_buffer << 8) | c; + bits_left += 8; + } /* end while */ + } else { + no_more_bytes: + /* We get here if we've read the marker that terminates the compressed + * data segment. There should be enough bits in the buffer register + * to satisfy the request; if so, no problem. + */ + if (nbits > bits_left) { + /* Uh-oh. Report corrupted data to user and stuff zeroes into + * the data stream, so that we can produce some kind of image. + * We use a nonvolatile flag to ensure that only one warning message + * appears per data segment. + */ + if (! ((huff_entropy_ptr) cinfo->entropy)->insufficient_data) { + WARNMS(cinfo, JWRN_HIT_MARKER); + ((huff_entropy_ptr) cinfo->entropy)->insufficient_data = TRUE; + } + /* Fill the buffer with zero bits */ + get_buffer <<= MIN_GET_BITS - bits_left; + bits_left = MIN_GET_BITS; + } + } + + /* Unload the local registers */ + state->next_input_byte = next_input_byte; + state->bytes_in_buffer = bytes_in_buffer; + state->get_buffer = get_buffer; + state->bits_left = bits_left; + + return TRUE; +} + + +/* + * Figure F.12: extend sign bit. + * On some machines, a shift and sub will be faster than a table lookup. + */ + +#ifdef AVOID_TABLES + +#define BIT_MASK(nbits) ((1<<(nbits))-1) +#define HUFF_EXTEND(x,s) ((x) < (1<<((s)-1)) ? (x) - ((1<<(s))-1) : (x)) + +#else + +#define BIT_MASK(nbits) bmask[nbits] +#define HUFF_EXTEND(x,s) ((x) <= bmask[(s) - 1] ? (x) - bmask[s] : (x)) + +static const int bmask[16] = /* bmask[n] is mask for n rightmost bits */ + { 0, 0x0001, 0x0003, 0x0007, 0x000F, 0x001F, 0x003F, 0x007F, 0x00FF, + 0x01FF, 0x03FF, 0x07FF, 0x0FFF, 0x1FFF, 0x3FFF, 0x7FFF }; + +#endif /* AVOID_TABLES */ + + +/* + * Out-of-line code for Huffman code decoding. + */ + +LOCAL(int) +jpeg_huff_decode (bitread_working_state * state, + register bit_buf_type get_buffer, register int bits_left, + d_derived_tbl * htbl, int min_bits) +{ + register int l = min_bits; + register INT32 code; + + /* HUFF_DECODE has determined that the code is at least min_bits */ + /* bits long, so fetch that many bits in one swoop. */ + + CHECK_BIT_BUFFER(*state, l, return -1); + code = GET_BITS(l); + + /* Collect the rest of the Huffman code one bit at a time. */ + /* This is per Figure F.16 in the JPEG spec. */ + + while (code > htbl->maxcode[l]) { + code <<= 1; + CHECK_BIT_BUFFER(*state, 1, return -1); + code |= GET_BITS(1); + l++; + } + + /* Unload the local registers */ + state->get_buffer = get_buffer; + state->bits_left = bits_left; + + /* With garbage input we may reach the sentinel value l = 17. */ + + if (l > 16) { + WARNMS(state->cinfo, JWRN_HUFF_BAD_CODE); + return 0; /* fake a zero as the safest result */ + } + + return htbl->pub->huffval[ (int) (code + htbl->valoffset[l]) ]; +} + + +/* + * Check for a restart marker & resynchronize decoder. + * Returns FALSE if must suspend. + */ + +LOCAL(boolean) +process_restart (j_decompress_ptr cinfo) +{ + huff_entropy_ptr entropy = (huff_entropy_ptr) cinfo->entropy; + int ci; + + /* Throw away any unused bits remaining in bit buffer; */ + /* include any full bytes in next_marker's count of discarded bytes */ + cinfo->marker->discarded_bytes += entropy->bitstate.bits_left / 8; + entropy->bitstate.bits_left = 0; + + /* Advance past the RSTn marker */ + if (! (*cinfo->marker->read_restart_marker) (cinfo)) + return FALSE; + + /* Re-initialize DC predictions to 0 */ + for (ci = 0; ci < cinfo->comps_in_scan; ci++) + entropy->saved.last_dc_val[ci] = 0; + /* Re-init EOB run count, too */ + entropy->saved.EOBRUN = 0; + + /* Reset restart counter */ + entropy->restarts_to_go = cinfo->restart_interval; + + /* Reset out-of-data flag, unless read_restart_marker left us smack up + * against a marker. In that case we will end up treating the next data + * segment as empty, and we can avoid producing bogus output pixels by + * leaving the flag set. + */ + if (cinfo->unread_marker == 0) + entropy->insufficient_data = FALSE; + + return TRUE; +} + + +/* + * Huffman MCU decoding. + * Each of these routines decodes and returns one MCU's worth of + * Huffman-compressed coefficients. + * The coefficients are reordered from zigzag order into natural array order, + * but are not dequantized. + * + * The i'th block of the MCU is stored into the block pointed to by + * MCU_data[i]. WE ASSUME THIS AREA IS INITIALLY ZEROED BY THE CALLER. + * (Wholesale zeroing is usually a little faster than retail...) + * + * We return FALSE if data source requested suspension. In that case no + * changes have been made to permanent state. (Exception: some output + * coefficients may already have been assigned. This is harmless for + * spectral selection, since we'll just re-assign them on the next call. + * Successive approximation AC refinement has to be more careful, however.) + */ + +/* + * MCU decoding for DC initial scan (either spectral selection, + * or first pass of successive approximation). + */ + +METHODDEF(boolean) +decode_mcu_DC_first (j_decompress_ptr cinfo, JBLOCKROW *MCU_data) +{ + huff_entropy_ptr entropy = (huff_entropy_ptr) cinfo->entropy; + int Al = cinfo->Al; + register int s, r; + int blkn, ci; + JBLOCKROW block; + BITREAD_STATE_VARS; + savable_state state; + d_derived_tbl * tbl; + jpeg_component_info * compptr; + + /* Process restart marker if needed; may have to suspend */ + if (cinfo->restart_interval) { + if (entropy->restarts_to_go == 0) + if (! process_restart(cinfo)) + return FALSE; + } + + /* If we've run out of data, just leave the MCU set to zeroes. + * This way, we return uniform gray for the remainder of the segment. + */ + if (! entropy->insufficient_data) { + + /* Load up working state */ + BITREAD_LOAD_STATE(cinfo,entropy->bitstate); + ASSIGN_STATE(state, entropy->saved); + + /* Outer loop handles each block in the MCU */ + + for (blkn = 0; blkn < cinfo->blocks_in_MCU; blkn++) { + block = MCU_data[blkn]; + ci = cinfo->MCU_membership[blkn]; + compptr = cinfo->cur_comp_info[ci]; + tbl = entropy->derived_tbls[compptr->dc_tbl_no]; + + /* Decode a single block's worth of coefficients */ + + /* Section F.2.2.1: decode the DC coefficient difference */ + HUFF_DECODE(s, br_state, tbl, return FALSE, label1); + if (s) { + CHECK_BIT_BUFFER(br_state, s, return FALSE); + r = GET_BITS(s); + s = HUFF_EXTEND(r, s); + } + + /* Convert DC difference to actual value, update last_dc_val */ + s += state.last_dc_val[ci]; + state.last_dc_val[ci] = s; + /* Scale and output the coefficient (assumes jpeg_natural_order[0]=0) */ + (*block)[0] = (JCOEF) (s << Al); + } + + /* Completed MCU, so update state */ + BITREAD_SAVE_STATE(cinfo,entropy->bitstate); + ASSIGN_STATE(entropy->saved, state); + } + + /* Account for restart interval (no-op if not using restarts) */ + entropy->restarts_to_go--; + + return TRUE; +} + + +/* + * MCU decoding for AC initial scan (either spectral selection, + * or first pass of successive approximation). + */ + +METHODDEF(boolean) +decode_mcu_AC_first (j_decompress_ptr cinfo, JBLOCKROW *MCU_data) +{ + huff_entropy_ptr entropy = (huff_entropy_ptr) cinfo->entropy; + register int s, k, r; + unsigned int EOBRUN; + int Se, Al; + const int * natural_order; + JBLOCKROW block; + BITREAD_STATE_VARS; + d_derived_tbl * tbl; + + /* Process restart marker if needed; may have to suspend */ + if (cinfo->restart_interval) { + if (entropy->restarts_to_go == 0) + if (! process_restart(cinfo)) + return FALSE; + } + + /* If we've run out of data, just leave the MCU set to zeroes. + * This way, we return uniform gray for the remainder of the segment. + */ + if (! entropy->insufficient_data) { + + Se = cinfo->Se; + Al = cinfo->Al; + natural_order = cinfo->natural_order; + + /* Load up working state. + * We can avoid loading/saving bitread state if in an EOB run. + */ + EOBRUN = entropy->saved.EOBRUN; /* only part of saved state we need */ + + /* There is always only one block per MCU */ + + if (EOBRUN > 0) /* if it's a band of zeroes... */ + EOBRUN--; /* ...process it now (we do nothing) */ + else { + BITREAD_LOAD_STATE(cinfo,entropy->bitstate); + block = MCU_data[0]; + tbl = entropy->ac_derived_tbl; + + for (k = cinfo->Ss; k <= Se; k++) { + HUFF_DECODE(s, br_state, tbl, return FALSE, label2); + r = s >> 4; + s &= 15; + if (s) { + k += r; + CHECK_BIT_BUFFER(br_state, s, return FALSE); + r = GET_BITS(s); + s = HUFF_EXTEND(r, s); + /* Scale and output coefficient in natural (dezigzagged) order */ + (*block)[natural_order[k]] = (JCOEF) (s << Al); + } else { + if (r == 15) { /* ZRL */ + k += 15; /* skip 15 zeroes in band */ + } else { /* EOBr, run length is 2^r + appended bits */ + EOBRUN = 1 << r; + if (r) { /* EOBr, r > 0 */ + CHECK_BIT_BUFFER(br_state, r, return FALSE); + r = GET_BITS(r); + EOBRUN += r; + } + EOBRUN--; /* this band is processed at this moment */ + break; /* force end-of-band */ + } + } + } + + BITREAD_SAVE_STATE(cinfo,entropy->bitstate); + } + + /* Completed MCU, so update state */ + entropy->saved.EOBRUN = EOBRUN; /* only part of saved state we need */ + } + + /* Account for restart interval (no-op if not using restarts) */ + entropy->restarts_to_go--; + + return TRUE; +} + + +/* + * MCU decoding for DC successive approximation refinement scan. + * Note: we assume such scans can be multi-component, although the spec + * is not very clear on the point. + */ + +METHODDEF(boolean) +decode_mcu_DC_refine (j_decompress_ptr cinfo, JBLOCKROW *MCU_data) +{ + huff_entropy_ptr entropy = (huff_entropy_ptr) cinfo->entropy; + int p1 = 1 << cinfo->Al; /* 1 in the bit position being coded */ + int blkn; + JBLOCKROW block; + BITREAD_STATE_VARS; + + /* Process restart marker if needed; may have to suspend */ + if (cinfo->restart_interval) { + if (entropy->restarts_to_go == 0) + if (! process_restart(cinfo)) + return FALSE; + } + + /* Not worth the cycles to check insufficient_data here, + * since we will not change the data anyway if we read zeroes. + */ + + /* Load up working state */ + BITREAD_LOAD_STATE(cinfo,entropy->bitstate); + + /* Outer loop handles each block in the MCU */ + + for (blkn = 0; blkn < cinfo->blocks_in_MCU; blkn++) { + block = MCU_data[blkn]; + + /* Encoded data is simply the next bit of the two's-complement DC value */ + CHECK_BIT_BUFFER(br_state, 1, return FALSE); + if (GET_BITS(1)) + (*block)[0] |= p1; + /* Note: since we use |=, repeating the assignment later is safe */ + } + + /* Completed MCU, so update state */ + BITREAD_SAVE_STATE(cinfo,entropy->bitstate); + + /* Account for restart interval (no-op if not using restarts) */ + entropy->restarts_to_go--; + + return TRUE; +} + + +/* + * MCU decoding for AC successive approximation refinement scan. + */ + +METHODDEF(boolean) +decode_mcu_AC_refine (j_decompress_ptr cinfo, JBLOCKROW *MCU_data) +{ + huff_entropy_ptr entropy = (huff_entropy_ptr) cinfo->entropy; + register int s, k, r; + unsigned int EOBRUN; + int Se, p1, m1; + const int * natural_order; + JBLOCKROW block; + JCOEFPTR thiscoef; + BITREAD_STATE_VARS; + d_derived_tbl * tbl; + int num_newnz; + int newnz_pos[DCTSIZE2]; + + /* Process restart marker if needed; may have to suspend */ + if (cinfo->restart_interval) { + if (entropy->restarts_to_go == 0) + if (! process_restart(cinfo)) + return FALSE; + } + + /* If we've run out of data, don't modify the MCU. + */ + if (! entropy->insufficient_data) { + + Se = cinfo->Se; + p1 = 1 << cinfo->Al; /* 1 in the bit position being coded */ + m1 = (-1) << cinfo->Al; /* -1 in the bit position being coded */ + natural_order = cinfo->natural_order; + + /* Load up working state */ + BITREAD_LOAD_STATE(cinfo,entropy->bitstate); + EOBRUN = entropy->saved.EOBRUN; /* only part of saved state we need */ + + /* There is always only one block per MCU */ + block = MCU_data[0]; + tbl = entropy->ac_derived_tbl; + + /* If we are forced to suspend, we must undo the assignments to any newly + * nonzero coefficients in the block, because otherwise we'd get confused + * next time about which coefficients were already nonzero. + * But we need not undo addition of bits to already-nonzero coefficients; + * instead, we can test the current bit to see if we already did it. + */ + num_newnz = 0; + + /* initialize coefficient loop counter to start of band */ + k = cinfo->Ss; + + if (EOBRUN == 0) { + for (; k <= Se; k++) { + HUFF_DECODE(s, br_state, tbl, goto undoit, label3); + r = s >> 4; + s &= 15; + if (s) { + if (s != 1) /* size of new coef should always be 1 */ + WARNMS(cinfo, JWRN_HUFF_BAD_CODE); + CHECK_BIT_BUFFER(br_state, 1, goto undoit); + if (GET_BITS(1)) + s = p1; /* newly nonzero coef is positive */ + else + s = m1; /* newly nonzero coef is negative */ + } else { + if (r != 15) { + EOBRUN = 1 << r; /* EOBr, run length is 2^r + appended bits */ + if (r) { + CHECK_BIT_BUFFER(br_state, r, goto undoit); + r = GET_BITS(r); + EOBRUN += r; + } + break; /* rest of block is handled by EOB logic */ + } + /* note s = 0 for processing ZRL */ + } + /* Advance over already-nonzero coefs and r still-zero coefs, + * appending correction bits to the nonzeroes. A correction bit is 1 + * if the absolute value of the coefficient must be increased. + */ + do { + thiscoef = *block + natural_order[k]; + if (*thiscoef != 0) { + CHECK_BIT_BUFFER(br_state, 1, goto undoit); + if (GET_BITS(1)) { + if ((*thiscoef & p1) == 0) { /* do nothing if already set it */ + if (*thiscoef >= 0) + *thiscoef += p1; + else + *thiscoef += m1; + } + } + } else { + if (--r < 0) + break; /* reached target zero coefficient */ + } + k++; + } while (k <= Se); + if (s) { + int pos = natural_order[k]; + /* Output newly nonzero coefficient */ + (*block)[pos] = (JCOEF) s; + /* Remember its position in case we have to suspend */ + newnz_pos[num_newnz++] = pos; + } + } + } + + if (EOBRUN > 0) { + /* Scan any remaining coefficient positions after the end-of-band + * (the last newly nonzero coefficient, if any). Append a correction + * bit to each already-nonzero coefficient. A correction bit is 1 + * if the absolute value of the coefficient must be increased. + */ + for (; k <= Se; k++) { + thiscoef = *block + natural_order[k]; + if (*thiscoef != 0) { + CHECK_BIT_BUFFER(br_state, 1, goto undoit); + if (GET_BITS(1)) { + if ((*thiscoef & p1) == 0) { /* do nothing if already changed it */ + if (*thiscoef >= 0) + *thiscoef += p1; + else + *thiscoef += m1; + } + } + } + } + /* Count one block completed in EOB run */ + EOBRUN--; + } + + /* Completed MCU, so update state */ + BITREAD_SAVE_STATE(cinfo,entropy->bitstate); + entropy->saved.EOBRUN = EOBRUN; /* only part of saved state we need */ + } + + /* Account for restart interval (no-op if not using restarts) */ + entropy->restarts_to_go--; + + return TRUE; + +undoit: + /* Re-zero any output coefficients that we made newly nonzero */ + while (num_newnz > 0) + (*block)[newnz_pos[--num_newnz]] = 0; + + return FALSE; +} + + +/* + * Decode one MCU's worth of Huffman-compressed coefficients, + * partial blocks. + */ + +METHODDEF(boolean) +decode_mcu_sub (j_decompress_ptr cinfo, JBLOCKROW *MCU_data) +{ + huff_entropy_ptr entropy = (huff_entropy_ptr) cinfo->entropy; + const int * natural_order; + int Se, blkn; + BITREAD_STATE_VARS; + savable_state state; + + /* Process restart marker if needed; may have to suspend */ + if (cinfo->restart_interval) { + if (entropy->restarts_to_go == 0) + if (! process_restart(cinfo)) + return FALSE; + } + + /* If we've run out of data, just leave the MCU set to zeroes. + * This way, we return uniform gray for the remainder of the segment. + */ + if (! entropy->insufficient_data) { + + natural_order = cinfo->natural_order; + Se = cinfo->lim_Se; + + /* Load up working state */ + BITREAD_LOAD_STATE(cinfo,entropy->bitstate); + ASSIGN_STATE(state, entropy->saved); + + /* Outer loop handles each block in the MCU */ + + for (blkn = 0; blkn < cinfo->blocks_in_MCU; blkn++) { + JBLOCKROW block = MCU_data[blkn]; + d_derived_tbl * htbl; + register int s, k, r; + int coef_limit, ci; + + /* Decode a single block's worth of coefficients */ + + /* Section F.2.2.1: decode the DC coefficient difference */ + htbl = entropy->dc_cur_tbls[blkn]; + HUFF_DECODE(s, br_state, htbl, return FALSE, label1); + + htbl = entropy->ac_cur_tbls[blkn]; + k = 1; + coef_limit = entropy->coef_limit[blkn]; + if (coef_limit) { + /* Convert DC difference to actual value, update last_dc_val */ + if (s) { + CHECK_BIT_BUFFER(br_state, s, return FALSE); + r = GET_BITS(s); + s = HUFF_EXTEND(r, s); + } + ci = cinfo->MCU_membership[blkn]; + s += state.last_dc_val[ci]; + state.last_dc_val[ci] = s; + /* Output the DC coefficient */ + (*block)[0] = (JCOEF) s; + + /* Section F.2.2.2: decode the AC coefficients */ + /* Since zeroes are skipped, output area must be cleared beforehand */ + for (; k < coef_limit; k++) { + HUFF_DECODE(s, br_state, htbl, return FALSE, label2); + + r = s >> 4; + s &= 15; + + if (s) { + k += r; + CHECK_BIT_BUFFER(br_state, s, return FALSE); + r = GET_BITS(s); + s = HUFF_EXTEND(r, s); + /* Output coefficient in natural (dezigzagged) order. + * Note: the extra entries in natural_order[] will save us + * if k > Se, which could happen if the data is corrupted. + */ + (*block)[natural_order[k]] = (JCOEF) s; + } else { + if (r != 15) + goto EndOfBlock; + k += 15; + } + } + } else { + if (s) { + CHECK_BIT_BUFFER(br_state, s, return FALSE); + DROP_BITS(s); + } + } + + /* Section F.2.2.2: decode the AC coefficients */ + /* In this path we just discard the values */ + for (; k <= Se; k++) { + HUFF_DECODE(s, br_state, htbl, return FALSE, label3); + + r = s >> 4; + s &= 15; + + if (s) { + k += r; + CHECK_BIT_BUFFER(br_state, s, return FALSE); + DROP_BITS(s); + } else { + if (r != 15) + break; + k += 15; + } + } + + EndOfBlock: ; + } + + /* Completed MCU, so update state */ + BITREAD_SAVE_STATE(cinfo,entropy->bitstate); + ASSIGN_STATE(entropy->saved, state); + } + + /* Account for restart interval (no-op if not using restarts) */ + entropy->restarts_to_go--; + + return TRUE; +} + + +/* + * Decode one MCU's worth of Huffman-compressed coefficients, + * full-size blocks. + */ + +METHODDEF(boolean) +decode_mcu (j_decompress_ptr cinfo, JBLOCKROW *MCU_data) +{ + huff_entropy_ptr entropy = (huff_entropy_ptr) cinfo->entropy; + int blkn; + BITREAD_STATE_VARS; + savable_state state; + + /* Process restart marker if needed; may have to suspend */ + if (cinfo->restart_interval) { + if (entropy->restarts_to_go == 0) + if (! process_restart(cinfo)) + return FALSE; + } + + /* If we've run out of data, just leave the MCU set to zeroes. + * This way, we return uniform gray for the remainder of the segment. + */ + if (! entropy->insufficient_data) { + + /* Load up working state */ + BITREAD_LOAD_STATE(cinfo,entropy->bitstate); + ASSIGN_STATE(state, entropy->saved); + + /* Outer loop handles each block in the MCU */ + + for (blkn = 0; blkn < cinfo->blocks_in_MCU; blkn++) { + JBLOCKROW block = MCU_data[blkn]; + d_derived_tbl * htbl; + register int s, k, r; + int coef_limit, ci; + + /* Decode a single block's worth of coefficients */ + + /* Section F.2.2.1: decode the DC coefficient difference */ + htbl = entropy->dc_cur_tbls[blkn]; + HUFF_DECODE(s, br_state, htbl, return FALSE, label1); + + htbl = entropy->ac_cur_tbls[blkn]; + k = 1; + coef_limit = entropy->coef_limit[blkn]; + if (coef_limit) { + /* Convert DC difference to actual value, update last_dc_val */ + if (s) { + CHECK_BIT_BUFFER(br_state, s, return FALSE); + r = GET_BITS(s); + s = HUFF_EXTEND(r, s); + } + ci = cinfo->MCU_membership[blkn]; + s += state.last_dc_val[ci]; + state.last_dc_val[ci] = s; + /* Output the DC coefficient */ + (*block)[0] = (JCOEF) s; + + /* Section F.2.2.2: decode the AC coefficients */ + /* Since zeroes are skipped, output area must be cleared beforehand */ + for (; k < coef_limit; k++) { + HUFF_DECODE(s, br_state, htbl, return FALSE, label2); + + r = s >> 4; + s &= 15; + + if (s) { + k += r; + CHECK_BIT_BUFFER(br_state, s, return FALSE); + r = GET_BITS(s); + s = HUFF_EXTEND(r, s); + /* Output coefficient in natural (dezigzagged) order. + * Note: the extra entries in jpeg_natural_order[] will save us + * if k >= DCTSIZE2, which could happen if the data is corrupted. + */ + (*block)[jpeg_natural_order[k]] = (JCOEF) s; + } else { + if (r != 15) + goto EndOfBlock; + k += 15; + } + } + } else { + if (s) { + CHECK_BIT_BUFFER(br_state, s, return FALSE); + DROP_BITS(s); + } + } + + /* Section F.2.2.2: decode the AC coefficients */ + /* In this path we just discard the values */ + for (; k < DCTSIZE2; k++) { + HUFF_DECODE(s, br_state, htbl, return FALSE, label3); + + r = s >> 4; + s &= 15; + + if (s) { + k += r; + CHECK_BIT_BUFFER(br_state, s, return FALSE); + DROP_BITS(s); + } else { + if (r != 15) + break; + k += 15; + } + } + + EndOfBlock: ; + } + + /* Completed MCU, so update state */ + BITREAD_SAVE_STATE(cinfo,entropy->bitstate); + ASSIGN_STATE(entropy->saved, state); + } + + /* Account for restart interval (no-op if not using restarts) */ + entropy->restarts_to_go--; + + return TRUE; +} + + +/* + * Initialize for a Huffman-compressed scan. + */ + +METHODDEF(void) +start_pass_huff_decoder (j_decompress_ptr cinfo) +{ + huff_entropy_ptr entropy = (huff_entropy_ptr) cinfo->entropy; + int ci, blkn, tbl, i; + jpeg_component_info * compptr; + + if (cinfo->progressive_mode) { + /* Validate progressive scan parameters */ + if (cinfo->Ss == 0) { + if (cinfo->Se != 0) + goto bad; + } else { + /* need not check Ss/Se < 0 since they came from unsigned bytes */ + if (cinfo->Se < cinfo->Ss || cinfo->Se > cinfo->lim_Se) + goto bad; + /* AC scans may have only one component */ + if (cinfo->comps_in_scan != 1) + goto bad; + } + if (cinfo->Ah != 0) { + /* Successive approximation refinement scan: must have Al = Ah-1. */ + if (cinfo->Ah-1 != cinfo->Al) + goto bad; + } + if (cinfo->Al > 13) { /* need not check for < 0 */ + /* Arguably the maximum Al value should be less than 13 for 8-bit precision, + * but the spec doesn't say so, and we try to be liberal about what we + * accept. Note: large Al values could result in out-of-range DC + * coefficients during early scans, leading to bizarre displays due to + * overflows in the IDCT math. But we won't crash. + */ + bad: + ERREXIT4(cinfo, JERR_BAD_PROGRESSION, + cinfo->Ss, cinfo->Se, cinfo->Ah, cinfo->Al); + } + /* Update progression status, and verify that scan order is legal. + * Note that inter-scan inconsistencies are treated as warnings + * not fatal errors ... not clear if this is right way to behave. + */ + for (ci = 0; ci < cinfo->comps_in_scan; ci++) { + int coefi, cindex = cinfo->cur_comp_info[ci]->component_index; + int *coef_bit_ptr = & cinfo->coef_bits[cindex][0]; + if (cinfo->Ss && coef_bit_ptr[0] < 0) /* AC without prior DC scan */ + WARNMS2(cinfo, JWRN_BOGUS_PROGRESSION, cindex, 0); + for (coefi = cinfo->Ss; coefi <= cinfo->Se; coefi++) { + int expected = (coef_bit_ptr[coefi] < 0) ? 0 : coef_bit_ptr[coefi]; + if (cinfo->Ah != expected) + WARNMS2(cinfo, JWRN_BOGUS_PROGRESSION, cindex, coefi); + coef_bit_ptr[coefi] = cinfo->Al; + } + } + + /* Select MCU decoding routine */ + if (cinfo->Ah == 0) { + if (cinfo->Ss == 0) + entropy->pub.decode_mcu = decode_mcu_DC_first; + else + entropy->pub.decode_mcu = decode_mcu_AC_first; + } else { + if (cinfo->Ss == 0) + entropy->pub.decode_mcu = decode_mcu_DC_refine; + else + entropy->pub.decode_mcu = decode_mcu_AC_refine; + } + + for (ci = 0; ci < cinfo->comps_in_scan; ci++) { + compptr = cinfo->cur_comp_info[ci]; + /* Make sure requested tables are present, and compute derived tables. + * We may build same derived table more than once, but it's not expensive. + */ + if (cinfo->Ss == 0) { + if (cinfo->Ah == 0) { /* DC refinement needs no table */ + tbl = compptr->dc_tbl_no; + jpeg_make_d_derived_tbl(cinfo, TRUE, tbl, + & entropy->derived_tbls[tbl]); + } + } else { + tbl = compptr->ac_tbl_no; + jpeg_make_d_derived_tbl(cinfo, FALSE, tbl, + & entropy->derived_tbls[tbl]); + /* remember the single active table */ + entropy->ac_derived_tbl = entropy->derived_tbls[tbl]; + } + /* Initialize DC predictions to 0 */ + entropy->saved.last_dc_val[ci] = 0; + } + + /* Initialize private state variables */ + entropy->saved.EOBRUN = 0; + } else { + /* Check that the scan parameters Ss, Se, Ah/Al are OK for sequential JPEG. + * This ought to be an error condition, but we make it a warning because + * there are some baseline files out there with all zeroes in these bytes. + */ + if (cinfo->Ss != 0 || cinfo->Ah != 0 || cinfo->Al != 0 || + ((cinfo->is_baseline || cinfo->Se < DCTSIZE2) && + cinfo->Se != cinfo->lim_Se)) + WARNMS(cinfo, JWRN_NOT_SEQUENTIAL); + + /* Select MCU decoding routine */ + /* We retain the hard-coded case for full-size blocks. + * This is not necessary, but it appears that this version is slightly + * more performant in the given implementation. + * With an improved implementation we would prefer a single optimized + * function. + */ + if (cinfo->lim_Se != DCTSIZE2-1) + entropy->pub.decode_mcu = decode_mcu_sub; + else + entropy->pub.decode_mcu = decode_mcu; + + for (ci = 0; ci < cinfo->comps_in_scan; ci++) { + compptr = cinfo->cur_comp_info[ci]; + /* Compute derived values for Huffman tables */ + /* We may do this more than once for a table, but it's not expensive */ + tbl = compptr->dc_tbl_no; + jpeg_make_d_derived_tbl(cinfo, TRUE, tbl, + & entropy->dc_derived_tbls[tbl]); + if (cinfo->lim_Se) { /* AC needs no table when not present */ + tbl = compptr->ac_tbl_no; + jpeg_make_d_derived_tbl(cinfo, FALSE, tbl, + & entropy->ac_derived_tbls[tbl]); + } + /* Initialize DC predictions to 0 */ + entropy->saved.last_dc_val[ci] = 0; + } + + /* Precalculate decoding info for each block in an MCU of this scan */ + for (blkn = 0; blkn < cinfo->blocks_in_MCU; blkn++) { + ci = cinfo->MCU_membership[blkn]; + compptr = cinfo->cur_comp_info[ci]; + /* Precalculate which table to use for each block */ + entropy->dc_cur_tbls[blkn] = entropy->dc_derived_tbls[compptr->dc_tbl_no]; + entropy->ac_cur_tbls[blkn] = entropy->ac_derived_tbls[compptr->ac_tbl_no]; + /* Decide whether we really care about the coefficient values */ + if (compptr->component_needed) { + ci = compptr->DCT_v_scaled_size; + i = compptr->DCT_h_scaled_size; + switch (cinfo->lim_Se) { + case (1*1-1): + entropy->coef_limit[blkn] = 1; + break; + case (2*2-1): + if (ci <= 0 || ci > 2) ci = 2; + if (i <= 0 || i > 2) i = 2; + entropy->coef_limit[blkn] = 1 + jpeg_zigzag_order2[ci - 1][i - 1]; + break; + case (3*3-1): + if (ci <= 0 || ci > 3) ci = 3; + if (i <= 0 || i > 3) i = 3; + entropy->coef_limit[blkn] = 1 + jpeg_zigzag_order3[ci - 1][i - 1]; + break; + case (4*4-1): + if (ci <= 0 || ci > 4) ci = 4; + if (i <= 0 || i > 4) i = 4; + entropy->coef_limit[blkn] = 1 + jpeg_zigzag_order4[ci - 1][i - 1]; + break; + case (5*5-1): + if (ci <= 0 || ci > 5) ci = 5; + if (i <= 0 || i > 5) i = 5; + entropy->coef_limit[blkn] = 1 + jpeg_zigzag_order5[ci - 1][i - 1]; + break; + case (6*6-1): + if (ci <= 0 || ci > 6) ci = 6; + if (i <= 0 || i > 6) i = 6; + entropy->coef_limit[blkn] = 1 + jpeg_zigzag_order6[ci - 1][i - 1]; + break; + case (7*7-1): + if (ci <= 0 || ci > 7) ci = 7; + if (i <= 0 || i > 7) i = 7; + entropy->coef_limit[blkn] = 1 + jpeg_zigzag_order7[ci - 1][i - 1]; + break; + default: + if (ci <= 0 || ci > 8) ci = 8; + if (i <= 0 || i > 8) i = 8; + entropy->coef_limit[blkn] = 1 + jpeg_zigzag_order[ci - 1][i - 1]; + break; + } + } else { + entropy->coef_limit[blkn] = 0; + } + } + } + + /* Initialize bitread state variables */ + entropy->bitstate.bits_left = 0; + entropy->bitstate.get_buffer = 0; /* unnecessary, but keeps Purify quiet */ + entropy->insufficient_data = FALSE; + + /* Initialize restart counter */ + entropy->restarts_to_go = cinfo->restart_interval; +} + + +/* + * Module initialization routine for Huffman entropy decoding. + */ + +GLOBAL(void) +jinit_huff_decoder (j_decompress_ptr cinfo) +{ + huff_entropy_ptr entropy; + int i; + + entropy = (huff_entropy_ptr) + (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, + SIZEOF(huff_entropy_decoder)); + cinfo->entropy = (struct jpeg_entropy_decoder *) entropy; + entropy->pub.start_pass = start_pass_huff_decoder; + + if (cinfo->progressive_mode) { + /* Create progression status table */ + int *coef_bit_ptr, ci; + cinfo->coef_bits = (int (*)[DCTSIZE2]) + (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, + cinfo->num_components*DCTSIZE2*SIZEOF(int)); + coef_bit_ptr = & cinfo->coef_bits[0][0]; + for (ci = 0; ci < cinfo->num_components; ci++) + for (i = 0; i < DCTSIZE2; i++) + *coef_bit_ptr++ = -1; + + /* Mark derived tables unallocated */ + for (i = 0; i < NUM_HUFF_TBLS; i++) { + entropy->derived_tbls[i] = NULL; + } + } else { + /* Mark tables unallocated */ + for (i = 0; i < NUM_HUFF_TBLS; i++) { + entropy->dc_derived_tbls[i] = entropy->ac_derived_tbls[i] = NULL; + } + } +} diff --git a/jpeg/jdinput.c b/jpeg/jdinput.c new file mode 100644 index 0000000..2c5c717 --- /dev/null +++ b/jpeg/jdinput.c @@ -0,0 +1,661 @@ +/* + * jdinput.c + * + * Copyright (C) 1991-1997, Thomas G. Lane. + * Modified 2002-2009 by Guido Vollbeding. + * This file is part of the Independent JPEG Group's software. + * For conditions of distribution and use, see the accompanying README file. + * + * This file contains input control logic for the JPEG decompressor. + * These routines are concerned with controlling the decompressor's input + * processing (marker reading and coefficient decoding). The actual input + * reading is done in jdmarker.c, jdhuff.c, and jdarith.c. + */ + +#define JPEG_INTERNALS +#include "jinclude.h" +#include "jpeglib.h" + + +/* Private state */ + +typedef struct { + struct jpeg_input_controller pub; /* public fields */ + + int inheaders; /* Nonzero until first SOS is reached */ +} my_input_controller; + +typedef my_input_controller * my_inputctl_ptr; + + +/* Forward declarations */ +METHODDEF(int) consume_markers JPP((j_decompress_ptr cinfo)); + + +/* + * Routines to calculate various quantities related to the size of the image. + */ + + +/* + * Compute output image dimensions and related values. + * NOTE: this is exported for possible use by application. + * Hence it mustn't do anything that can't be done twice. + */ + +GLOBAL(void) +jpeg_core_output_dimensions (j_decompress_ptr cinfo) +/* Do computations that are needed before master selection phase. + * This function is used for transcoding and full decompression. + */ +{ +#ifdef IDCT_SCALING_SUPPORTED + int ci; + jpeg_component_info *compptr; + + /* Compute actual output image dimensions and DCT scaling choices. */ + if (cinfo->scale_num * cinfo->block_size <= cinfo->scale_denom) { + /* Provide 1/block_size scaling */ + cinfo->output_width = (JDIMENSION) + jdiv_round_up((long) cinfo->image_width, (long) cinfo->block_size); + cinfo->output_height = (JDIMENSION) + jdiv_round_up((long) cinfo->image_height, (long) cinfo->block_size); + cinfo->min_DCT_h_scaled_size = 1; + cinfo->min_DCT_v_scaled_size = 1; + } else if (cinfo->scale_num * cinfo->block_size <= cinfo->scale_denom * 2) { + /* Provide 2/block_size scaling */ + cinfo->output_width = (JDIMENSION) + jdiv_round_up((long) cinfo->image_width * 2L, (long) cinfo->block_size); + cinfo->output_height = (JDIMENSION) + jdiv_round_up((long) cinfo->image_height * 2L, (long) cinfo->block_size); + cinfo->min_DCT_h_scaled_size = 2; + cinfo->min_DCT_v_scaled_size = 2; + } else if (cinfo->scale_num * cinfo->block_size <= cinfo->scale_denom * 3) { + /* Provide 3/block_size scaling */ + cinfo->output_width = (JDIMENSION) + jdiv_round_up((long) cinfo->image_width * 3L, (long) cinfo->block_size); + cinfo->output_height = (JDIMENSION) + jdiv_round_up((long) cinfo->image_height * 3L, (long) cinfo->block_size); + cinfo->min_DCT_h_scaled_size = 3; + cinfo->min_DCT_v_scaled_size = 3; + } else if (cinfo->scale_num * cinfo->block_size <= cinfo->scale_denom * 4) { + /* Provide 4/block_size scaling */ + cinfo->output_width = (JDIMENSION) + jdiv_round_up((long) cinfo->image_width * 4L, (long) cinfo->block_size); + cinfo->output_height = (JDIMENSION) + jdiv_round_up((long) cinfo->image_height * 4L, (long) cinfo->block_size); + cinfo->min_DCT_h_scaled_size = 4; + cinfo->min_DCT_v_scaled_size = 4; + } else if (cinfo->scale_num * cinfo->block_size <= cinfo->scale_denom * 5) { + /* Provide 5/block_size scaling */ + cinfo->output_width = (JDIMENSION) + jdiv_round_up((long) cinfo->image_width * 5L, (long) cinfo->block_size); + cinfo->output_height = (JDIMENSION) + jdiv_round_up((long) cinfo->image_height * 5L, (long) cinfo->block_size); + cinfo->min_DCT_h_scaled_size = 5; + cinfo->min_DCT_v_scaled_size = 5; + } else if (cinfo->scale_num * cinfo->block_size <= cinfo->scale_denom * 6) { + /* Provide 6/block_size scaling */ + cinfo->output_width = (JDIMENSION) + jdiv_round_up((long) cinfo->image_width * 6L, (long) cinfo->block_size); + cinfo->output_height = (JDIMENSION) + jdiv_round_up((long) cinfo->image_height * 6L, (long) cinfo->block_size); + cinfo->min_DCT_h_scaled_size = 6; + cinfo->min_DCT_v_scaled_size = 6; + } else if (cinfo->scale_num * cinfo->block_size <= cinfo->scale_denom * 7) { + /* Provide 7/block_size scaling */ + cinfo->output_width = (JDIMENSION) + jdiv_round_up((long) cinfo->image_width * 7L, (long) cinfo->block_size); + cinfo->output_height = (JDIMENSION) + jdiv_round_up((long) cinfo->image_height * 7L, (long) cinfo->block_size); + cinfo->min_DCT_h_scaled_size = 7; + cinfo->min_DCT_v_scaled_size = 7; + } else if (cinfo->scale_num * cinfo->block_size <= cinfo->scale_denom * 8) { + /* Provide 8/block_size scaling */ + cinfo->output_width = (JDIMENSION) + jdiv_round_up((long) cinfo->image_width * 8L, (long) cinfo->block_size); + cinfo->output_height = (JDIMENSION) + jdiv_round_up((long) cinfo->image_height * 8L, (long) cinfo->block_size); + cinfo->min_DCT_h_scaled_size = 8; + cinfo->min_DCT_v_scaled_size = 8; + } else if (cinfo->scale_num * cinfo->block_size <= cinfo->scale_denom * 9) { + /* Provide 9/block_size scaling */ + cinfo->output_width = (JDIMENSION) + jdiv_round_up((long) cinfo->image_width * 9L, (long) cinfo->block_size); + cinfo->output_height = (JDIMENSION) + jdiv_round_up((long) cinfo->image_height * 9L, (long) cinfo->block_size); + cinfo->min_DCT_h_scaled_size = 9; + cinfo->min_DCT_v_scaled_size = 9; + } else if (cinfo->scale_num * cinfo->block_size <= cinfo->scale_denom * 10) { + /* Provide 10/block_size scaling */ + cinfo->output_width = (JDIMENSION) + jdiv_round_up((long) cinfo->image_width * 10L, (long) cinfo->block_size); + cinfo->output_height = (JDIMENSION) + jdiv_round_up((long) cinfo->image_height * 10L, (long) cinfo->block_size); + cinfo->min_DCT_h_scaled_size = 10; + cinfo->min_DCT_v_scaled_size = 10; + } else if (cinfo->scale_num * cinfo->block_size <= cinfo->scale_denom * 11) { + /* Provide 11/block_size scaling */ + cinfo->output_width = (JDIMENSION) + jdiv_round_up((long) cinfo->image_width * 11L, (long) cinfo->block_size); + cinfo->output_height = (JDIMENSION) + jdiv_round_up((long) cinfo->image_height * 11L, (long) cinfo->block_size); + cinfo->min_DCT_h_scaled_size = 11; + cinfo->min_DCT_v_scaled_size = 11; + } else if (cinfo->scale_num * cinfo->block_size <= cinfo->scale_denom * 12) { + /* Provide 12/block_size scaling */ + cinfo->output_width = (JDIMENSION) + jdiv_round_up((long) cinfo->image_width * 12L, (long) cinfo->block_size); + cinfo->output_height = (JDIMENSION) + jdiv_round_up((long) cinfo->image_height * 12L, (long) cinfo->block_size); + cinfo->min_DCT_h_scaled_size = 12; + cinfo->min_DCT_v_scaled_size = 12; + } else if (cinfo->scale_num * cinfo->block_size <= cinfo->scale_denom * 13) { + /* Provide 13/block_size scaling */ + cinfo->output_width = (JDIMENSION) + jdiv_round_up((long) cinfo->image_width * 13L, (long) cinfo->block_size); + cinfo->output_height = (JDIMENSION) + jdiv_round_up((long) cinfo->image_height * 13L, (long) cinfo->block_size); + cinfo->min_DCT_h_scaled_size = 13; + cinfo->min_DCT_v_scaled_size = 13; + } else if (cinfo->scale_num * cinfo->block_size <= cinfo->scale_denom * 14) { + /* Provide 14/block_size scaling */ + cinfo->output_width = (JDIMENSION) + jdiv_round_up((long) cinfo->image_width * 14L, (long) cinfo->block_size); + cinfo->output_height = (JDIMENSION) + jdiv_round_up((long) cinfo->image_height * 14L, (long) cinfo->block_size); + cinfo->min_DCT_h_scaled_size = 14; + cinfo->min_DCT_v_scaled_size = 14; + } else if (cinfo->scale_num * cinfo->block_size <= cinfo->scale_denom * 15) { + /* Provide 15/block_size scaling */ + cinfo->output_width = (JDIMENSION) + jdiv_round_up((long) cinfo->image_width * 15L, (long) cinfo->block_size); + cinfo->output_height = (JDIMENSION) + jdiv_round_up((long) cinfo->image_height * 15L, (long) cinfo->block_size); + cinfo->min_DCT_h_scaled_size = 15; + cinfo->min_DCT_v_scaled_size = 15; + } else { + /* Provide 16/block_size scaling */ + cinfo->output_width = (JDIMENSION) + jdiv_round_up((long) cinfo->image_width * 16L, (long) cinfo->block_size); + cinfo->output_height = (JDIMENSION) + jdiv_round_up((long) cinfo->image_height * 16L, (long) cinfo->block_size); + cinfo->min_DCT_h_scaled_size = 16; + cinfo->min_DCT_v_scaled_size = 16; + } + + /* Recompute dimensions of components */ + for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components; + ci++, compptr++) { + compptr->DCT_h_scaled_size = cinfo->min_DCT_h_scaled_size; + compptr->DCT_v_scaled_size = cinfo->min_DCT_v_scaled_size; + } + +#else /* !IDCT_SCALING_SUPPORTED */ + + /* Hardwire it to "no scaling" */ + cinfo->output_width = cinfo->image_width; + cinfo->output_height = cinfo->image_height; + /* jdinput.c has already initialized DCT_scaled_size, + * and has computed unscaled downsampled_width and downsampled_height. + */ + +#endif /* IDCT_SCALING_SUPPORTED */ +} + + +LOCAL(void) +initial_setup (j_decompress_ptr cinfo) +/* Called once, when first SOS marker is reached */ +{ + int ci; + jpeg_component_info *compptr; + + /* Make sure image isn't bigger than I can handle */ + if ((long) cinfo->image_height > (long) JPEG_MAX_DIMENSION || + (long) cinfo->image_width > (long) JPEG_MAX_DIMENSION) + ERREXIT1(cinfo, JERR_IMAGE_TOO_BIG, (unsigned int) JPEG_MAX_DIMENSION); + + /* For now, precision must match compiled-in value... */ + if (cinfo->data_precision != BITS_IN_JSAMPLE) + ERREXIT1(cinfo, JERR_BAD_PRECISION, cinfo->data_precision); + + /* Check that number of components won't exceed internal array sizes */ + if (cinfo->num_components > MAX_COMPONENTS) + ERREXIT2(cinfo, JERR_COMPONENT_COUNT, cinfo->num_components, + MAX_COMPONENTS); + + /* Compute maximum sampling factors; check factor validity */ + cinfo->max_h_samp_factor = 1; + cinfo->max_v_samp_factor = 1; + for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components; + ci++, compptr++) { + if (compptr->h_samp_factor<=0 || compptr->h_samp_factor>MAX_SAMP_FACTOR || + compptr->v_samp_factor<=0 || compptr->v_samp_factor>MAX_SAMP_FACTOR) + ERREXIT(cinfo, JERR_BAD_SAMPLING); + cinfo->max_h_samp_factor = MAX(cinfo->max_h_samp_factor, + compptr->h_samp_factor); + cinfo->max_v_samp_factor = MAX(cinfo->max_v_samp_factor, + compptr->v_samp_factor); + } + + /* Derive block_size, natural_order, and lim_Se */ + if (cinfo->is_baseline || (cinfo->progressive_mode && + cinfo->comps_in_scan)) { /* no pseudo SOS marker */ + cinfo->block_size = DCTSIZE; + cinfo->natural_order = jpeg_natural_order; + cinfo->lim_Se = DCTSIZE2-1; + } else + switch (cinfo->Se) { + case (1*1-1): + cinfo->block_size = 1; + cinfo->natural_order = jpeg_natural_order; /* not needed */ + cinfo->lim_Se = cinfo->Se; + break; + case (2*2-1): + cinfo->block_size = 2; + cinfo->natural_order = jpeg_natural_order2; + cinfo->lim_Se = cinfo->Se; + break; + case (3*3-1): + cinfo->block_size = 3; + cinfo->natural_order = jpeg_natural_order3; + cinfo->lim_Se = cinfo->Se; + break; + case (4*4-1): + cinfo->block_size = 4; + cinfo->natural_order = jpeg_natural_order4; + cinfo->lim_Se = cinfo->Se; + break; + case (5*5-1): + cinfo->block_size = 5; + cinfo->natural_order = jpeg_natural_order5; + cinfo->lim_Se = cinfo->Se; + break; + case (6*6-1): + cinfo->block_size = 6; + cinfo->natural_order = jpeg_natural_order6; + cinfo->lim_Se = cinfo->Se; + break; + case (7*7-1): + cinfo->block_size = 7; + cinfo->natural_order = jpeg_natural_order7; + cinfo->lim_Se = cinfo->Se; + break; + case (8*8-1): + cinfo->block_size = 8; + cinfo->natural_order = jpeg_natural_order; + cinfo->lim_Se = DCTSIZE2-1; + break; + case (9*9-1): + cinfo->block_size = 9; + cinfo->natural_order = jpeg_natural_order; + cinfo->lim_Se = DCTSIZE2-1; + break; + case (10*10-1): + cinfo->block_size = 10; + cinfo->natural_order = jpeg_natural_order; + cinfo->lim_Se = DCTSIZE2-1; + break; + case (11*11-1): + cinfo->block_size = 11; + cinfo->natural_order = jpeg_natural_order; + cinfo->lim_Se = DCTSIZE2-1; + break; + case (12*12-1): + cinfo->block_size = 12; + cinfo->natural_order = jpeg_natural_order; + cinfo->lim_Se = DCTSIZE2-1; + break; + case (13*13-1): + cinfo->block_size = 13; + cinfo->natural_order = jpeg_natural_order; + cinfo->lim_Se = DCTSIZE2-1; + break; + case (14*14-1): + cinfo->block_size = 14; + cinfo->natural_order = jpeg_natural_order; + cinfo->lim_Se = DCTSIZE2-1; + break; + case (15*15-1): + cinfo->block_size = 15; + cinfo->natural_order = jpeg_natural_order; + cinfo->lim_Se = DCTSIZE2-1; + break; + case (16*16-1): + cinfo->block_size = 16; + cinfo->natural_order = jpeg_natural_order; + cinfo->lim_Se = DCTSIZE2-1; + break; + default: + ERREXIT4(cinfo, JERR_BAD_PROGRESSION, + cinfo->Ss, cinfo->Se, cinfo->Ah, cinfo->Al); + break; + } + + /* We initialize DCT_scaled_size and min_DCT_scaled_size to block_size. + * In the full decompressor, + * this will be overridden by jpeg_calc_output_dimensions in jdmaster.c; + * but in the transcoder, + * jpeg_calc_output_dimensions is not used, so we must do it here. + */ + cinfo->min_DCT_h_scaled_size = cinfo->block_size; + cinfo->min_DCT_v_scaled_size = cinfo->block_size; + + /* Compute dimensions of components */ + for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components; + ci++, compptr++) { + compptr->DCT_h_scaled_size = cinfo->block_size; + compptr->DCT_v_scaled_size = cinfo->block_size; + /* Size in DCT blocks */ + compptr->width_in_blocks = (JDIMENSION) + jdiv_round_up((long) cinfo->image_width * (long) compptr->h_samp_factor, + (long) (cinfo->max_h_samp_factor * cinfo->block_size)); + compptr->height_in_blocks = (JDIMENSION) + jdiv_round_up((long) cinfo->image_height * (long) compptr->v_samp_factor, + (long) (cinfo->max_v_samp_factor * cinfo->block_size)); + /* downsampled_width and downsampled_height will also be overridden by + * jdmaster.c if we are doing full decompression. The transcoder library + * doesn't use these values, but the calling application might. + */ + /* Size in samples */ + compptr->downsampled_width = (JDIMENSION) + jdiv_round_up((long) cinfo->image_width * (long) compptr->h_samp_factor, + (long) cinfo->max_h_samp_factor); + compptr->downsampled_height = (JDIMENSION) + jdiv_round_up((long) cinfo->image_height * (long) compptr->v_samp_factor, + (long) cinfo->max_v_samp_factor); + /* Mark component needed, until color conversion says otherwise */ + compptr->component_needed = TRUE; + /* Mark no quantization table yet saved for component */ + compptr->quant_table = NULL; + } + + /* Compute number of fully interleaved MCU rows. */ + cinfo->total_iMCU_rows = (JDIMENSION) + jdiv_round_up((long) cinfo->image_height, + (long) (cinfo->max_v_samp_factor * cinfo->block_size)); + + /* Decide whether file contains multiple scans */ + if (cinfo->comps_in_scan < cinfo->num_components || cinfo->progressive_mode) + cinfo->inputctl->has_multiple_scans = TRUE; + else + cinfo->inputctl->has_multiple_scans = FALSE; +} + + +LOCAL(void) +per_scan_setup (j_decompress_ptr cinfo) +/* Do computations that are needed before processing a JPEG scan */ +/* cinfo->comps_in_scan and cinfo->cur_comp_info[] were set from SOS marker */ +{ + int ci, mcublks, tmp; + jpeg_component_info *compptr; + + if (cinfo->comps_in_scan == 1) { + + /* Noninterleaved (single-component) scan */ + compptr = cinfo->cur_comp_info[0]; + + /* Overall image size in MCUs */ + cinfo->MCUs_per_row = compptr->width_in_blocks; + cinfo->MCU_rows_in_scan = compptr->height_in_blocks; + + /* For noninterleaved scan, always one block per MCU */ + compptr->MCU_width = 1; + compptr->MCU_height = 1; + compptr->MCU_blocks = 1; + compptr->MCU_sample_width = compptr->DCT_h_scaled_size; + compptr->last_col_width = 1; + /* For noninterleaved scans, it is convenient to define last_row_height + * as the number of block rows present in the last iMCU row. + */ + tmp = (int) (compptr->height_in_blocks % compptr->v_samp_factor); + if (tmp == 0) tmp = compptr->v_samp_factor; + compptr->last_row_height = tmp; + + /* Prepare array describing MCU composition */ + cinfo->blocks_in_MCU = 1; + cinfo->MCU_membership[0] = 0; + + } else { + + /* Interleaved (multi-component) scan */ + if (cinfo->comps_in_scan <= 0 || cinfo->comps_in_scan > MAX_COMPS_IN_SCAN) + ERREXIT2(cinfo, JERR_COMPONENT_COUNT, cinfo->comps_in_scan, + MAX_COMPS_IN_SCAN); + + /* Overall image size in MCUs */ + cinfo->MCUs_per_row = (JDIMENSION) + jdiv_round_up((long) cinfo->image_width, + (long) (cinfo->max_h_samp_factor * cinfo->block_size)); + cinfo->MCU_rows_in_scan = (JDIMENSION) + jdiv_round_up((long) cinfo->image_height, + (long) (cinfo->max_v_samp_factor * cinfo->block_size)); + + cinfo->blocks_in_MCU = 0; + + for (ci = 0; ci < cinfo->comps_in_scan; ci++) { + compptr = cinfo->cur_comp_info[ci]; + /* Sampling factors give # of blocks of component in each MCU */ + compptr->MCU_width = compptr->h_samp_factor; + compptr->MCU_height = compptr->v_samp_factor; + compptr->MCU_blocks = compptr->MCU_width * compptr->MCU_height; + compptr->MCU_sample_width = compptr->MCU_width * compptr->DCT_h_scaled_size; + /* Figure number of non-dummy blocks in last MCU column & row */ + tmp = (int) (compptr->width_in_blocks % compptr->MCU_width); + if (tmp == 0) tmp = compptr->MCU_width; + compptr->last_col_width = tmp; + tmp = (int) (compptr->height_in_blocks % compptr->MCU_height); + if (tmp == 0) tmp = compptr->MCU_height; + compptr->last_row_height = tmp; + /* Prepare array describing MCU composition */ + mcublks = compptr->MCU_blocks; + if (cinfo->blocks_in_MCU + mcublks > D_MAX_BLOCKS_IN_MCU) + ERREXIT(cinfo, JERR_BAD_MCU_SIZE); + while (mcublks-- > 0) { + cinfo->MCU_membership[cinfo->blocks_in_MCU++] = ci; + } + } + + } +} + + +/* + * Save away a copy of the Q-table referenced by each component present + * in the current scan, unless already saved during a prior scan. + * + * In a multiple-scan JPEG file, the encoder could assign different components + * the same Q-table slot number, but change table definitions between scans + * so that each component uses a different Q-table. (The IJG encoder is not + * currently capable of doing this, but other encoders might.) Since we want + * to be able to dequantize all the components at the end of the file, this + * means that we have to save away the table actually used for each component. + * We do this by copying the table at the start of the first scan containing + * the component. + * The JPEG spec prohibits the encoder from changing the contents of a Q-table + * slot between scans of a component using that slot. If the encoder does so + * anyway, this decoder will simply use the Q-table values that were current + * at the start of the first scan for the component. + * + * The decompressor output side looks only at the saved quant tables, + * not at the current Q-table slots. + */ + +LOCAL(void) +latch_quant_tables (j_decompress_ptr cinfo) +{ + int ci, qtblno; + jpeg_component_info *compptr; + JQUANT_TBL * qtbl; + + for (ci = 0; ci < cinfo->comps_in_scan; ci++) { + compptr = cinfo->cur_comp_info[ci]; + /* No work if we already saved Q-table for this component */ + if (compptr->quant_table != NULL) + continue; + /* Make sure specified quantization table is present */ + qtblno = compptr->quant_tbl_no; + if (qtblno < 0 || qtblno >= NUM_QUANT_TBLS || + cinfo->quant_tbl_ptrs[qtblno] == NULL) + ERREXIT1(cinfo, JERR_NO_QUANT_TABLE, qtblno); + /* OK, save away the quantization table */ + qtbl = (JQUANT_TBL *) + (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, + SIZEOF(JQUANT_TBL)); + MEMCOPY(qtbl, cinfo->quant_tbl_ptrs[qtblno], SIZEOF(JQUANT_TBL)); + compptr->quant_table = qtbl; + } +} + + +/* + * Initialize the input modules to read a scan of compressed data. + * The first call to this is done by jdmaster.c after initializing + * the entire decompressor (during jpeg_start_decompress). + * Subsequent calls come from consume_markers, below. + */ + +METHODDEF(void) +start_input_pass (j_decompress_ptr cinfo) +{ + per_scan_setup(cinfo); + latch_quant_tables(cinfo); + (*cinfo->entropy->start_pass) (cinfo); + (*cinfo->coef->start_input_pass) (cinfo); + cinfo->inputctl->consume_input = cinfo->coef->consume_data; +} + + +/* + * Finish up after inputting a compressed-data scan. + * This is called by the coefficient controller after it's read all + * the expected data of the scan. + */ + +METHODDEF(void) +finish_input_pass (j_decompress_ptr cinfo) +{ + cinfo->inputctl->consume_input = consume_markers; +} + + +/* + * Read JPEG markers before, between, or after compressed-data scans. + * Change state as necessary when a new scan is reached. + * Return value is JPEG_SUSPENDED, JPEG_REACHED_SOS, or JPEG_REACHED_EOI. + * + * The consume_input method pointer points either here or to the + * coefficient controller's consume_data routine, depending on whether + * we are reading a compressed data segment or inter-segment markers. + * + * Note: This function should NOT return a pseudo SOS marker (with zero + * component number) to the caller. A pseudo marker received by + * read_markers is processed and then skipped for other markers. + */ + +METHODDEF(int) +consume_markers (j_decompress_ptr cinfo) +{ + my_inputctl_ptr inputctl = (my_inputctl_ptr) cinfo->inputctl; + int val; + + if (inputctl->pub.eoi_reached) /* After hitting EOI, read no further */ + return JPEG_REACHED_EOI; + + for (;;) { /* Loop to pass pseudo SOS marker */ + val = (*cinfo->marker->read_markers) (cinfo); + + switch (val) { + case JPEG_REACHED_SOS: /* Found SOS */ + if (inputctl->inheaders) { /* 1st SOS */ + if (inputctl->inheaders == 1) + initial_setup(cinfo); + if (cinfo->comps_in_scan == 0) { /* pseudo SOS marker */ + inputctl->inheaders = 2; + break; + } + inputctl->inheaders = 0; + /* Note: start_input_pass must be called by jdmaster.c + * before any more input can be consumed. jdapimin.c is + * responsible for enforcing this sequencing. + */ + } else { /* 2nd or later SOS marker */ + if (! inputctl->pub.has_multiple_scans) + ERREXIT(cinfo, JERR_EOI_EXPECTED); /* Oops, I wasn't expecting this! */ + if (cinfo->comps_in_scan == 0) /* unexpected pseudo SOS marker */ + break; + start_input_pass(cinfo); + } + return val; + case JPEG_REACHED_EOI: /* Found EOI */ + inputctl->pub.eoi_reached = TRUE; + if (inputctl->inheaders) { /* Tables-only datastream, apparently */ + if (cinfo->marker->saw_SOF) + ERREXIT(cinfo, JERR_SOF_NO_SOS); + } else { + /* Prevent infinite loop in coef ctlr's decompress_data routine + * if user set output_scan_number larger than number of scans. + */ + if (cinfo->output_scan_number > cinfo->input_scan_number) + cinfo->output_scan_number = cinfo->input_scan_number; + } + return val; + case JPEG_SUSPENDED: + return val; + default: + return val; + } + } +} + + +/* + * Reset state to begin a fresh datastream. + */ + +METHODDEF(void) +reset_input_controller (j_decompress_ptr cinfo) +{ + my_inputctl_ptr inputctl = (my_inputctl_ptr) cinfo->inputctl; + + inputctl->pub.consume_input = consume_markers; + inputctl->pub.has_multiple_scans = FALSE; /* "unknown" would be better */ + inputctl->pub.eoi_reached = FALSE; + inputctl->inheaders = 1; + /* Reset other modules */ + (*cinfo->err->reset_error_mgr) ((j_common_ptr) cinfo); + (*cinfo->marker->reset_marker_reader) (cinfo); + /* Reset progression state -- would be cleaner if entropy decoder did this */ + cinfo->coef_bits = NULL; +} + + +/* + * Initialize the input controller module. + * This is called only once, when the decompression object is created. + */ + +GLOBAL(void) +jinit_input_controller (j_decompress_ptr cinfo) +{ + my_inputctl_ptr inputctl; + + /* Create subobject in permanent pool */ + inputctl = (my_inputctl_ptr) + (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_PERMANENT, + SIZEOF(my_input_controller)); + cinfo->inputctl = (struct jpeg_input_controller *) inputctl; + /* Initialize method pointers */ + inputctl->pub.consume_input = consume_markers; + inputctl->pub.reset_input_controller = reset_input_controller; + inputctl->pub.start_input_pass = start_input_pass; + inputctl->pub.finish_input_pass = finish_input_pass; + /* Initialize state: can't use reset_input_controller since we don't + * want to try to reset other modules yet. + */ + inputctl->pub.has_multiple_scans = FALSE; /* "unknown" would be better */ + inputctl->pub.eoi_reached = FALSE; + inputctl->inheaders = 1; +} diff --git a/jpeg/jdmainct.c b/jpeg/jdmainct.c new file mode 100644 index 0000000..02723ca --- /dev/null +++ b/jpeg/jdmainct.c @@ -0,0 +1,512 @@ +/* + * jdmainct.c + * + * Copyright (C) 1994-1996, Thomas G. Lane. + * This file is part of the Independent JPEG Group's software. + * For conditions of distribution and use, see the accompanying README file. + * + * This file contains the main buffer controller for decompression. + * The main buffer lies between the JPEG decompressor proper and the + * post-processor; it holds downsampled data in the JPEG colorspace. + * + * Note that this code is bypassed in raw-data mode, since the application + * supplies the equivalent of the main buffer in that case. + */ + +#define JPEG_INTERNALS +#include "jinclude.h" +#include "jpeglib.h" + + +/* + * In the current system design, the main buffer need never be a full-image + * buffer; any full-height buffers will be found inside the coefficient or + * postprocessing controllers. Nonetheless, the main controller is not + * trivial. Its responsibility is to provide context rows for upsampling/ + * rescaling, and doing this in an efficient fashion is a bit tricky. + * + * Postprocessor input data is counted in "row groups". A row group + * is defined to be (v_samp_factor * DCT_scaled_size / min_DCT_scaled_size) + * sample rows of each component. (We require DCT_scaled_size values to be + * chosen such that these numbers are integers. In practice DCT_scaled_size + * values will likely be powers of two, so we actually have the stronger + * condition that DCT_scaled_size / min_DCT_scaled_size is an integer.) + * Upsampling will typically produce max_v_samp_factor pixel rows from each + * row group (times any additional scale factor that the upsampler is + * applying). + * + * The coefficient controller will deliver data to us one iMCU row at a time; + * each iMCU row contains v_samp_factor * DCT_scaled_size sample rows, or + * exactly min_DCT_scaled_size row groups. (This amount of data corresponds + * to one row of MCUs when the image is fully interleaved.) Note that the + * number of sample rows varies across components, but the number of row + * groups does not. Some garbage sample rows may be included in the last iMCU + * row at the bottom of the image. + * + * Depending on the vertical scaling algorithm used, the upsampler may need + * access to the sample row(s) above and below its current input row group. + * The upsampler is required to set need_context_rows TRUE at global selection + * time if so. When need_context_rows is FALSE, this controller can simply + * obtain one iMCU row at a time from the coefficient controller and dole it + * out as row groups to the postprocessor. + * + * When need_context_rows is TRUE, this controller guarantees that the buffer + * passed to postprocessing contains at least one row group's worth of samples + * above and below the row group(s) being processed. Note that the context + * rows "above" the first passed row group appear at negative row offsets in + * the passed buffer. At the top and bottom of the image, the required + * context rows are manufactured by duplicating the first or last real sample + * row; this avoids having special cases in the upsampling inner loops. + * + * The amount of context is fixed at one row group just because that's a + * convenient number for this controller to work with. The existing + * upsamplers really only need one sample row of context. An upsampler + * supporting arbitrary output rescaling might wish for more than one row + * group of context when shrinking the image; tough, we don't handle that. + * (This is justified by the assumption that downsizing will be handled mostly + * by adjusting the DCT_scaled_size values, so that the actual scale factor at + * the upsample step needn't be much less than one.) + * + * To provide the desired context, we have to retain the last two row groups + * of one iMCU row while reading in the next iMCU row. (The last row group + * can't be processed until we have another row group for its below-context, + * and so we have to save the next-to-last group too for its above-context.) + * We could do this most simply by copying data around in our buffer, but + * that'd be very slow. We can avoid copying any data by creating a rather + * strange pointer structure. Here's how it works. We allocate a workspace + * consisting of M+2 row groups (where M = min_DCT_scaled_size is the number + * of row groups per iMCU row). We create two sets of redundant pointers to + * the workspace. Labeling the physical row groups 0 to M+1, the synthesized + * pointer lists look like this: + * M+1 M-1 + * master pointer --> 0 master pointer --> 0 + * 1 1 + * ... ... + * M-3 M-3 + * M-2 M + * M-1 M+1 + * M M-2 + * M+1 M-1 + * 0 0 + * We read alternate iMCU rows using each master pointer; thus the last two + * row groups of the previous iMCU row remain un-overwritten in the workspace. + * The pointer lists are set up so that the required context rows appear to + * be adjacent to the proper places when we pass the pointer lists to the + * upsampler. + * + * The above pictures describe the normal state of the pointer lists. + * At top and bottom of the image, we diddle the pointer lists to duplicate + * the first or last sample row as necessary (this is cheaper than copying + * sample rows around). + * + * This scheme breaks down if M < 2, ie, min_DCT_scaled_size is 1. In that + * situation each iMCU row provides only one row group so the buffering logic + * must be different (eg, we must read two iMCU rows before we can emit the + * first row group). For now, we simply do not support providing context + * rows when min_DCT_scaled_size is 1. That combination seems unlikely to + * be worth providing --- if someone wants a 1/8th-size preview, they probably + * want it quick and dirty, so a context-free upsampler is sufficient. + */ + + +/* Private buffer controller object */ + +typedef struct { + struct jpeg_d_main_controller pub; /* public fields */ + + /* Pointer to allocated workspace (M or M+2 row groups). */ + JSAMPARRAY buffer[MAX_COMPONENTS]; + + boolean buffer_full; /* Have we gotten an iMCU row from decoder? */ + JDIMENSION rowgroup_ctr; /* counts row groups output to postprocessor */ + + /* Remaining fields are only used in the context case. */ + + /* These are the master pointers to the funny-order pointer lists. */ + JSAMPIMAGE xbuffer[2]; /* pointers to weird pointer lists */ + + int whichptr; /* indicates which pointer set is now in use */ + int context_state; /* process_data state machine status */ + JDIMENSION rowgroups_avail; /* row groups available to postprocessor */ + JDIMENSION iMCU_row_ctr; /* counts iMCU rows to detect image top/bot */ +} my_main_controller; + +typedef my_main_controller * my_main_ptr; + +/* context_state values: */ +#define CTX_PREPARE_FOR_IMCU 0 /* need to prepare for MCU row */ +#define CTX_PROCESS_IMCU 1 /* feeding iMCU to postprocessor */ +#define CTX_POSTPONED_ROW 2 /* feeding postponed row group */ + + +/* Forward declarations */ +METHODDEF(void) process_data_simple_main + JPP((j_decompress_ptr cinfo, JSAMPARRAY output_buf, + JDIMENSION *out_row_ctr, JDIMENSION out_rows_avail)); +METHODDEF(void) process_data_context_main + JPP((j_decompress_ptr cinfo, JSAMPARRAY output_buf, + JDIMENSION *out_row_ctr, JDIMENSION out_rows_avail)); +#ifdef QUANT_2PASS_SUPPORTED +METHODDEF(void) process_data_crank_post + JPP((j_decompress_ptr cinfo, JSAMPARRAY output_buf, + JDIMENSION *out_row_ctr, JDIMENSION out_rows_avail)); +#endif + + +LOCAL(void) +alloc_funny_pointers (j_decompress_ptr cinfo) +/* Allocate space for the funny pointer lists. + * This is done only once, not once per pass. + */ +{ + my_main_ptr main = (my_main_ptr) cinfo->main; + int ci, rgroup; + int M = cinfo->min_DCT_v_scaled_size; + jpeg_component_info *compptr; + JSAMPARRAY xbuf; + + /* Get top-level space for component array pointers. + * We alloc both arrays with one call to save a few cycles. + */ + main->xbuffer[0] = (JSAMPIMAGE) + (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, + cinfo->num_components * 2 * SIZEOF(JSAMPARRAY)); + main->xbuffer[1] = main->xbuffer[0] + cinfo->num_components; + + for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components; + ci++, compptr++) { + rgroup = (compptr->v_samp_factor * compptr->DCT_v_scaled_size) / + cinfo->min_DCT_v_scaled_size; /* height of a row group of component */ + /* Get space for pointer lists --- M+4 row groups in each list. + * We alloc both pointer lists with one call to save a few cycles. + */ + xbuf = (JSAMPARRAY) + (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, + 2 * (rgroup * (M + 4)) * SIZEOF(JSAMPROW)); + xbuf += rgroup; /* want one row group at negative offsets */ + main->xbuffer[0][ci] = xbuf; + xbuf += rgroup * (M + 4); + main->xbuffer[1][ci] = xbuf; + } +} + + +LOCAL(void) +make_funny_pointers (j_decompress_ptr cinfo) +/* Create the funny pointer lists discussed in the comments above. + * The actual workspace is already allocated (in main->buffer), + * and the space for the pointer lists is allocated too. + * This routine just fills in the curiously ordered lists. + * This will be repeated at the beginning of each pass. + */ +{ + my_main_ptr main = (my_main_ptr) cinfo->main; + int ci, i, rgroup; + int M = cinfo->min_DCT_v_scaled_size; + jpeg_component_info *compptr; + JSAMPARRAY buf, xbuf0, xbuf1; + + for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components; + ci++, compptr++) { + rgroup = (compptr->v_samp_factor * compptr->DCT_v_scaled_size) / + cinfo->min_DCT_v_scaled_size; /* height of a row group of component */ + xbuf0 = main->xbuffer[0][ci]; + xbuf1 = main->xbuffer[1][ci]; + /* First copy the workspace pointers as-is */ + buf = main->buffer[ci]; + for (i = 0; i < rgroup * (M + 2); i++) { + xbuf0[i] = xbuf1[i] = buf[i]; + } + /* In the second list, put the last four row groups in swapped order */ + for (i = 0; i < rgroup * 2; i++) { + xbuf1[rgroup*(M-2) + i] = buf[rgroup*M + i]; + xbuf1[rgroup*M + i] = buf[rgroup*(M-2) + i]; + } + /* The wraparound pointers at top and bottom will be filled later + * (see set_wraparound_pointers, below). Initially we want the "above" + * pointers to duplicate the first actual data line. This only needs + * to happen in xbuffer[0]. + */ + for (i = 0; i < rgroup; i++) { + xbuf0[i - rgroup] = xbuf0[0]; + } + } +} + + +LOCAL(void) +set_wraparound_pointers (j_decompress_ptr cinfo) +/* Set up the "wraparound" pointers at top and bottom of the pointer lists. + * This changes the pointer list state from top-of-image to the normal state. + */ +{ + my_main_ptr main = (my_main_ptr) cinfo->main; + int ci, i, rgroup; + int M = cinfo->min_DCT_v_scaled_size; + jpeg_component_info *compptr; + JSAMPARRAY xbuf0, xbuf1; + + for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components; + ci++, compptr++) { + rgroup = (compptr->v_samp_factor * compptr->DCT_v_scaled_size) / + cinfo->min_DCT_v_scaled_size; /* height of a row group of component */ + xbuf0 = main->xbuffer[0][ci]; + xbuf1 = main->xbuffer[1][ci]; + for (i = 0; i < rgroup; i++) { + xbuf0[i - rgroup] = xbuf0[rgroup*(M+1) + i]; + xbuf1[i - rgroup] = xbuf1[rgroup*(M+1) + i]; + xbuf0[rgroup*(M+2) + i] = xbuf0[i]; + xbuf1[rgroup*(M+2) + i] = xbuf1[i]; + } + } +} + + +LOCAL(void) +set_bottom_pointers (j_decompress_ptr cinfo) +/* Change the pointer lists to duplicate the last sample row at the bottom + * of the image. whichptr indicates which xbuffer holds the final iMCU row. + * Also sets rowgroups_avail to indicate number of nondummy row groups in row. + */ +{ + my_main_ptr main = (my_main_ptr) cinfo->main; + int ci, i, rgroup, iMCUheight, rows_left; + jpeg_component_info *compptr; + JSAMPARRAY xbuf; + + for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components; + ci++, compptr++) { + /* Count sample rows in one iMCU row and in one row group */ + iMCUheight = compptr->v_samp_factor * compptr->DCT_v_scaled_size; + rgroup = iMCUheight / cinfo->min_DCT_v_scaled_size; + /* Count nondummy sample rows remaining for this component */ + rows_left = (int) (compptr->downsampled_height % (JDIMENSION) iMCUheight); + if (rows_left == 0) rows_left = iMCUheight; + /* Count nondummy row groups. Should get same answer for each component, + * so we need only do it once. + */ + if (ci == 0) { + main->rowgroups_avail = (JDIMENSION) ((rows_left-1) / rgroup + 1); + } + /* Duplicate the last real sample row rgroup*2 times; this pads out the + * last partial rowgroup and ensures at least one full rowgroup of context. + */ + xbuf = main->xbuffer[main->whichptr][ci]; + for (i = 0; i < rgroup * 2; i++) { + xbuf[rows_left + i] = xbuf[rows_left-1]; + } + } +} + + +/* + * Initialize for a processing pass. + */ + +METHODDEF(void) +start_pass_main (j_decompress_ptr cinfo, J_BUF_MODE pass_mode) +{ + my_main_ptr main = (my_main_ptr) cinfo->main; + + switch (pass_mode) { + case JBUF_PASS_THRU: + if (cinfo->upsample->need_context_rows) { + main->pub.process_data = process_data_context_main; + make_funny_pointers(cinfo); /* Create the xbuffer[] lists */ + main->whichptr = 0; /* Read first iMCU row into xbuffer[0] */ + main->context_state = CTX_PREPARE_FOR_IMCU; + main->iMCU_row_ctr = 0; + } else { + /* Simple case with no context needed */ + main->pub.process_data = process_data_simple_main; + } + main->buffer_full = FALSE; /* Mark buffer empty */ + main->rowgroup_ctr = 0; + break; +#ifdef QUANT_2PASS_SUPPORTED + case JBUF_CRANK_DEST: + /* For last pass of 2-pass quantization, just crank the postprocessor */ + main->pub.process_data = process_data_crank_post; + break; +#endif + default: + ERREXIT(cinfo, JERR_BAD_BUFFER_MODE); + break; + } +} + + +/* + * Process some data. + * This handles the simple case where no context is required. + */ + +METHODDEF(void) +process_data_simple_main (j_decompress_ptr cinfo, + JSAMPARRAY output_buf, JDIMENSION *out_row_ctr, + JDIMENSION out_rows_avail) +{ + my_main_ptr main = (my_main_ptr) cinfo->main; + JDIMENSION rowgroups_avail; + + /* Read input data if we haven't filled the main buffer yet */ + if (! main->buffer_full) { + if (! (*cinfo->coef->decompress_data) (cinfo, main->buffer)) + return; /* suspension forced, can do nothing more */ + main->buffer_full = TRUE; /* OK, we have an iMCU row to work with */ + } + + /* There are always min_DCT_scaled_size row groups in an iMCU row. */ + rowgroups_avail = (JDIMENSION) cinfo->min_DCT_v_scaled_size; + /* Note: at the bottom of the image, we may pass extra garbage row groups + * to the postprocessor. The postprocessor has to check for bottom + * of image anyway (at row resolution), so no point in us doing it too. + */ + + /* Feed the postprocessor */ + (*cinfo->post->post_process_data) (cinfo, main->buffer, + &main->rowgroup_ctr, rowgroups_avail, + output_buf, out_row_ctr, out_rows_avail); + + /* Has postprocessor consumed all the data yet? If so, mark buffer empty */ + if (main->rowgroup_ctr >= rowgroups_avail) { + main->buffer_full = FALSE; + main->rowgroup_ctr = 0; + } +} + + +/* + * Process some data. + * This handles the case where context rows must be provided. + */ + +METHODDEF(void) +process_data_context_main (j_decompress_ptr cinfo, + JSAMPARRAY output_buf, JDIMENSION *out_row_ctr, + JDIMENSION out_rows_avail) +{ + my_main_ptr main = (my_main_ptr) cinfo->main; + + /* Read input data if we haven't filled the main buffer yet */ + if (! main->buffer_full) { + if (! (*cinfo->coef->decompress_data) (cinfo, + main->xbuffer[main->whichptr])) + return; /* suspension forced, can do nothing more */ + main->buffer_full = TRUE; /* OK, we have an iMCU row to work with */ + main->iMCU_row_ctr++; /* count rows received */ + } + + /* Postprocessor typically will not swallow all the input data it is handed + * in one call (due to filling the output buffer first). Must be prepared + * to exit and restart. This switch lets us keep track of how far we got. + * Note that each case falls through to the next on successful completion. + */ + switch (main->context_state) { + case CTX_POSTPONED_ROW: + /* Call postprocessor using previously set pointers for postponed row */ + (*cinfo->post->post_process_data) (cinfo, main->xbuffer[main->whichptr], + &main->rowgroup_ctr, main->rowgroups_avail, + output_buf, out_row_ctr, out_rows_avail); + if (main->rowgroup_ctr < main->rowgroups_avail) + return; /* Need to suspend */ + main->context_state = CTX_PREPARE_FOR_IMCU; + if (*out_row_ctr >= out_rows_avail) + return; /* Postprocessor exactly filled output buf */ + /*FALLTHROUGH*/ + case CTX_PREPARE_FOR_IMCU: + /* Prepare to process first M-1 row groups of this iMCU row */ + main->rowgroup_ctr = 0; + main->rowgroups_avail = (JDIMENSION) (cinfo->min_DCT_v_scaled_size - 1); + /* Check for bottom of image: if so, tweak pointers to "duplicate" + * the last sample row, and adjust rowgroups_avail to ignore padding rows. + */ + if (main->iMCU_row_ctr == cinfo->total_iMCU_rows) + set_bottom_pointers(cinfo); + main->context_state = CTX_PROCESS_IMCU; + /*FALLTHROUGH*/ + case CTX_PROCESS_IMCU: + /* Call postprocessor using previously set pointers */ + (*cinfo->post->post_process_data) (cinfo, main->xbuffer[main->whichptr], + &main->rowgroup_ctr, main->rowgroups_avail, + output_buf, out_row_ctr, out_rows_avail); + if (main->rowgroup_ctr < main->rowgroups_avail) + return; /* Need to suspend */ + /* After the first iMCU, change wraparound pointers to normal state */ + if (main->iMCU_row_ctr == 1) + set_wraparound_pointers(cinfo); + /* Prepare to load new iMCU row using other xbuffer list */ + main->whichptr ^= 1; /* 0=>1 or 1=>0 */ + main->buffer_full = FALSE; + /* Still need to process last row group of this iMCU row, */ + /* which is saved at index M+1 of the other xbuffer */ + main->rowgroup_ctr = (JDIMENSION) (cinfo->min_DCT_v_scaled_size + 1); + main->rowgroups_avail = (JDIMENSION) (cinfo->min_DCT_v_scaled_size + 2); + main->context_state = CTX_POSTPONED_ROW; + } +} + + +/* + * Process some data. + * Final pass of two-pass quantization: just call the postprocessor. + * Source data will be the postprocessor controller's internal buffer. + */ + +#ifdef QUANT_2PASS_SUPPORTED + +METHODDEF(void) +process_data_crank_post (j_decompress_ptr cinfo, + JSAMPARRAY output_buf, JDIMENSION *out_row_ctr, + JDIMENSION out_rows_avail) +{ + (*cinfo->post->post_process_data) (cinfo, (JSAMPIMAGE) NULL, + (JDIMENSION *) NULL, (JDIMENSION) 0, + output_buf, out_row_ctr, out_rows_avail); +} + +#endif /* QUANT_2PASS_SUPPORTED */ + + +/* + * Initialize main buffer controller. + */ + +GLOBAL(void) +jinit_d_main_controller (j_decompress_ptr cinfo, boolean need_full_buffer) +{ + my_main_ptr main; + int ci, rgroup, ngroups; + jpeg_component_info *compptr; + + main = (my_main_ptr) + (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, + SIZEOF(my_main_controller)); + cinfo->main = (struct jpeg_d_main_controller *) main; + main->pub.start_pass = start_pass_main; + + if (need_full_buffer) /* shouldn't happen */ + ERREXIT(cinfo, JERR_BAD_BUFFER_MODE); + + /* Allocate the workspace. + * ngroups is the number of row groups we need. + */ + if (cinfo->upsample->need_context_rows) { + if (cinfo->min_DCT_v_scaled_size < 2) /* unsupported, see comments above */ + ERREXIT(cinfo, JERR_NOTIMPL); + alloc_funny_pointers(cinfo); /* Alloc space for xbuffer[] lists */ + ngroups = cinfo->min_DCT_v_scaled_size + 2; + } else { + ngroups = cinfo->min_DCT_v_scaled_size; + } + + for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components; + ci++, compptr++) { + rgroup = (compptr->v_samp_factor * compptr->DCT_v_scaled_size) / + cinfo->min_DCT_v_scaled_size; /* height of a row group of component */ + main->buffer[ci] = (*cinfo->mem->alloc_sarray) + ((j_common_ptr) cinfo, JPOOL_IMAGE, + compptr->width_in_blocks * compptr->DCT_h_scaled_size, + (JDIMENSION) (rgroup * ngroups)); + } +} diff --git a/jpeg/jdmarker.c b/jpeg/jdmarker.c new file mode 100644 index 0000000..f2a9cc4 --- /dev/null +++ b/jpeg/jdmarker.c @@ -0,0 +1,1406 @@ +/* + * jdmarker.c + * + * Copyright (C) 1991-1998, Thomas G. Lane. + * Modified 2009 by Guido Vollbeding. + * This file is part of the Independent JPEG Group's software. + * For conditions of distribution and use, see the accompanying README file. + * + * This file contains routines to decode JPEG datastream markers. + * Most of the complexity arises from our desire to support input + * suspension: if not all of the data for a marker is available, + * we must exit back to the application. On resumption, we reprocess + * the marker. + */ + +#define JPEG_INTERNALS +#include "jinclude.h" +#include "jpeglib.h" + + +typedef enum { /* JPEG marker codes */ + M_SOF0 = 0xc0, + M_SOF1 = 0xc1, + M_SOF2 = 0xc2, + M_SOF3 = 0xc3, + + M_SOF5 = 0xc5, + M_SOF6 = 0xc6, + M_SOF7 = 0xc7, + + M_JPG = 0xc8, + M_SOF9 = 0xc9, + M_SOF10 = 0xca, + M_SOF11 = 0xcb, + + M_SOF13 = 0xcd, + M_SOF14 = 0xce, + M_SOF15 = 0xcf, + + M_DHT = 0xc4, + + M_DAC = 0xcc, + + M_RST0 = 0xd0, + M_RST1 = 0xd1, + M_RST2 = 0xd2, + M_RST3 = 0xd3, + M_RST4 = 0xd4, + M_RST5 = 0xd5, + M_RST6 = 0xd6, + M_RST7 = 0xd7, + + M_SOI = 0xd8, + M_EOI = 0xd9, + M_SOS = 0xda, + M_DQT = 0xdb, + M_DNL = 0xdc, + M_DRI = 0xdd, + M_DHP = 0xde, + M_EXP = 0xdf, + + M_APP0 = 0xe0, + M_APP1 = 0xe1, + M_APP2 = 0xe2, + M_APP3 = 0xe3, + M_APP4 = 0xe4, + M_APP5 = 0xe5, + M_APP6 = 0xe6, + M_APP7 = 0xe7, + M_APP8 = 0xe8, + M_APP9 = 0xe9, + M_APP10 = 0xea, + M_APP11 = 0xeb, + M_APP12 = 0xec, + M_APP13 = 0xed, + M_APP14 = 0xee, + M_APP15 = 0xef, + + M_JPG0 = 0xf0, + M_JPG13 = 0xfd, + M_COM = 0xfe, + + M_TEM = 0x01, + + M_ERROR = 0x100 +} JPEG_MARKER; + + +/* Private state */ + +typedef struct { + struct jpeg_marker_reader pub; /* public fields */ + + /* Application-overridable marker processing methods */ + jpeg_marker_parser_method process_COM; + jpeg_marker_parser_method process_APPn[16]; + + /* Limit on marker data length to save for each marker type */ + unsigned int length_limit_COM; + unsigned int length_limit_APPn[16]; + + /* Status of COM/APPn marker saving */ + jpeg_saved_marker_ptr cur_marker; /* NULL if not processing a marker */ + unsigned int bytes_read; /* data bytes read so far in marker */ + /* Note: cur_marker is not linked into marker_list until it's all read. */ +} my_marker_reader; + +typedef my_marker_reader * my_marker_ptr; + + +/* + * Macros for fetching data from the data source module. + * + * At all times, cinfo->src->next_input_byte and ->bytes_in_buffer reflect + * the current restart point; we update them only when we have reached a + * suitable place to restart if a suspension occurs. + */ + +/* Declare and initialize local copies of input pointer/count */ +#define INPUT_VARS(cinfo) \ + struct jpeg_source_mgr * datasrc = (cinfo)->src; \ + const JOCTET * next_input_byte = datasrc->next_input_byte; \ + size_t bytes_in_buffer = datasrc->bytes_in_buffer + +/* Unload the local copies --- do this only at a restart boundary */ +#define INPUT_SYNC(cinfo) \ + ( datasrc->next_input_byte = next_input_byte, \ + datasrc->bytes_in_buffer = bytes_in_buffer ) + +/* Reload the local copies --- used only in MAKE_BYTE_AVAIL */ +#define INPUT_RELOAD(cinfo) \ + ( next_input_byte = datasrc->next_input_byte, \ + bytes_in_buffer = datasrc->bytes_in_buffer ) + +/* Internal macro for INPUT_BYTE and INPUT_2BYTES: make a byte available. + * Note we do *not* do INPUT_SYNC before calling fill_input_buffer, + * but we must reload the local copies after a successful fill. + */ +#define MAKE_BYTE_AVAIL(cinfo,action) \ + if (bytes_in_buffer == 0) { \ + if (! (*datasrc->fill_input_buffer) (cinfo)) \ + { action; } \ + INPUT_RELOAD(cinfo); \ + } + +/* Read a byte into variable V. + * If must suspend, take the specified action (typically "return FALSE"). + */ +#define INPUT_BYTE(cinfo,V,action) \ + MAKESTMT( MAKE_BYTE_AVAIL(cinfo,action); \ + bytes_in_buffer--; \ + V = GETJOCTET(*next_input_byte++); ) + +/* As above, but read two bytes interpreted as an unsigned 16-bit integer. + * V should be declared unsigned int or perhaps INT32. + */ +#define INPUT_2BYTES(cinfo,V,action) \ + MAKESTMT( MAKE_BYTE_AVAIL(cinfo,action); \ + bytes_in_buffer--; \ + V = ((unsigned int) GETJOCTET(*next_input_byte++)) << 8; \ + MAKE_BYTE_AVAIL(cinfo,action); \ + bytes_in_buffer--; \ + V += GETJOCTET(*next_input_byte++); ) + + +/* + * Routines to process JPEG markers. + * + * Entry condition: JPEG marker itself has been read and its code saved + * in cinfo->unread_marker; input restart point is just after the marker. + * + * Exit: if return TRUE, have read and processed any parameters, and have + * updated the restart point to point after the parameters. + * If return FALSE, was forced to suspend before reaching end of + * marker parameters; restart point has not been moved. Same routine + * will be called again after application supplies more input data. + * + * This approach to suspension assumes that all of a marker's parameters + * can fit into a single input bufferload. This should hold for "normal" + * markers. Some COM/APPn markers might have large parameter segments + * that might not fit. If we are simply dropping such a marker, we use + * skip_input_data to get past it, and thereby put the problem on the + * source manager's shoulders. If we are saving the marker's contents + * into memory, we use a slightly different convention: when forced to + * suspend, the marker processor updates the restart point to the end of + * what it's consumed (ie, the end of the buffer) before returning FALSE. + * On resumption, cinfo->unread_marker still contains the marker code, + * but the data source will point to the next chunk of marker data. + * The marker processor must retain internal state to deal with this. + * + * Note that we don't bother to avoid duplicate trace messages if a + * suspension occurs within marker parameters. Other side effects + * require more care. + */ + + +LOCAL(boolean) +get_soi (j_decompress_ptr cinfo) +/* Process an SOI marker */ +{ + int i; + + TRACEMS(cinfo, 1, JTRC_SOI); + + if (cinfo->marker->saw_SOI) + ERREXIT(cinfo, JERR_SOI_DUPLICATE); + + /* Reset all parameters that are defined to be reset by SOI */ + + for (i = 0; i < NUM_ARITH_TBLS; i++) { + cinfo->arith_dc_L[i] = 0; + cinfo->arith_dc_U[i] = 1; + cinfo->arith_ac_K[i] = 5; + } + cinfo->restart_interval = 0; + + /* Set initial assumptions for colorspace etc */ + + cinfo->jpeg_color_space = JCS_UNKNOWN; + cinfo->CCIR601_sampling = FALSE; /* Assume non-CCIR sampling??? */ + + cinfo->saw_JFIF_marker = FALSE; + cinfo->JFIF_major_version = 1; /* set default JFIF APP0 values */ + cinfo->JFIF_minor_version = 1; + cinfo->density_unit = 0; + cinfo->X_density = 1; + cinfo->Y_density = 1; + cinfo->saw_Adobe_marker = FALSE; + cinfo->Adobe_transform = 0; + + cinfo->marker->saw_SOI = TRUE; + + return TRUE; +} + + +LOCAL(boolean) +get_sof (j_decompress_ptr cinfo, boolean is_baseline, boolean is_prog, + boolean is_arith) +/* Process a SOFn marker */ +{ + INT32 length; + int c, ci; + jpeg_component_info * compptr; + INPUT_VARS(cinfo); + + cinfo->is_baseline = is_baseline; + cinfo->progressive_mode = is_prog; + cinfo->arith_code = is_arith; + + INPUT_2BYTES(cinfo, length, return FALSE); + + INPUT_BYTE(cinfo, cinfo->data_precision, return FALSE); + INPUT_2BYTES(cinfo, cinfo->image_height, return FALSE); + INPUT_2BYTES(cinfo, cinfo->image_width, return FALSE); + INPUT_BYTE(cinfo, cinfo->num_components, return FALSE); + + length -= 8; + + TRACEMS4(cinfo, 1, JTRC_SOF, cinfo->unread_marker, + (int) cinfo->image_width, (int) cinfo->image_height, + cinfo->num_components); + + if (cinfo->marker->saw_SOF) + ERREXIT(cinfo, JERR_SOF_DUPLICATE); + + /* We don't support files in which the image height is initially specified */ + /* as 0 and is later redefined by DNL. As long as we have to check that, */ + /* might as well have a general sanity check. */ + if (cinfo->image_height <= 0 || cinfo->image_width <= 0 + || cinfo->num_components <= 0) + ERREXIT(cinfo, JERR_EMPTY_IMAGE); + + if (length != (cinfo->num_components * 3)) + ERREXIT(cinfo, JERR_BAD_LENGTH); + + if (cinfo->comp_info == NULL) /* do only once, even if suspend */ + cinfo->comp_info = (jpeg_component_info *) (*cinfo->mem->alloc_small) + ((j_common_ptr) cinfo, JPOOL_IMAGE, + cinfo->num_components * SIZEOF(jpeg_component_info)); + + for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components; + ci++, compptr++) { + compptr->component_index = ci; + INPUT_BYTE(cinfo, compptr->component_id, return FALSE); + INPUT_BYTE(cinfo, c, return FALSE); + compptr->h_samp_factor = (c >> 4) & 15; + compptr->v_samp_factor = (c ) & 15; + INPUT_BYTE(cinfo, compptr->quant_tbl_no, return FALSE); + + TRACEMS4(cinfo, 1, JTRC_SOF_COMPONENT, + compptr->component_id, compptr->h_samp_factor, + compptr->v_samp_factor, compptr->quant_tbl_no); + } + + cinfo->marker->saw_SOF = TRUE; + + INPUT_SYNC(cinfo); + return TRUE; +} + + +LOCAL(boolean) +get_sos (j_decompress_ptr cinfo) +/* Process a SOS marker */ +{ + INT32 length; + int i, ci, n, c, cc; + jpeg_component_info * compptr; + INPUT_VARS(cinfo); + + if (! cinfo->marker->saw_SOF) + ERREXIT(cinfo, JERR_SOS_NO_SOF); + + INPUT_2BYTES(cinfo, length, return FALSE); + + INPUT_BYTE(cinfo, n, return FALSE); /* Number of components */ + + TRACEMS1(cinfo, 1, JTRC_SOS, n); + + if (length != (n * 2 + 6) || n > MAX_COMPS_IN_SCAN || + (n == 0 && !cinfo->progressive_mode)) + /* pseudo SOS marker only allowed in progressive mode */ + ERREXIT(cinfo, JERR_BAD_LENGTH); + + cinfo->comps_in_scan = n; + + /* Collect the component-spec parameters */ + + for (i = 0; i < n; i++) { + INPUT_BYTE(cinfo, cc, return FALSE); + INPUT_BYTE(cinfo, c, return FALSE); + + for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components; + ci++, compptr++) { + if (cc == compptr->component_id) + goto id_found; + } + + ERREXIT1(cinfo, JERR_BAD_COMPONENT_ID, cc); + + id_found: + + cinfo->cur_comp_info[i] = compptr; + compptr->dc_tbl_no = (c >> 4) & 15; + compptr->ac_tbl_no = (c ) & 15; + + TRACEMS3(cinfo, 1, JTRC_SOS_COMPONENT, cc, + compptr->dc_tbl_no, compptr->ac_tbl_no); + } + + /* Collect the additional scan parameters Ss, Se, Ah/Al. */ + INPUT_BYTE(cinfo, c, return FALSE); + cinfo->Ss = c; + INPUT_BYTE(cinfo, c, return FALSE); + cinfo->Se = c; + INPUT_BYTE(cinfo, c, return FALSE); + cinfo->Ah = (c >> 4) & 15; + cinfo->Al = (c ) & 15; + + TRACEMS4(cinfo, 1, JTRC_SOS_PARAMS, cinfo->Ss, cinfo->Se, + cinfo->Ah, cinfo->Al); + + /* Prepare to scan data & restart markers */ + cinfo->marker->next_restart_num = 0; + + /* Count another (non-pseudo) SOS marker */ + if (n) cinfo->input_scan_number++; + + INPUT_SYNC(cinfo); + return TRUE; +} + + +#ifdef D_ARITH_CODING_SUPPORTED + +LOCAL(boolean) +get_dac (j_decompress_ptr cinfo) +/* Process a DAC marker */ +{ + INT32 length; + int index, val; + INPUT_VARS(cinfo); + + INPUT_2BYTES(cinfo, length, return FALSE); + length -= 2; + + while (length > 0) { + INPUT_BYTE(cinfo, index, return FALSE); + INPUT_BYTE(cinfo, val, return FALSE); + + length -= 2; + + TRACEMS2(cinfo, 1, JTRC_DAC, index, val); + + if (index < 0 || index >= (2*NUM_ARITH_TBLS)) + ERREXIT1(cinfo, JERR_DAC_INDEX, index); + + if (index >= NUM_ARITH_TBLS) { /* define AC table */ + cinfo->arith_ac_K[index-NUM_ARITH_TBLS] = (UINT8) val; + } else { /* define DC table */ + cinfo->arith_dc_L[index] = (UINT8) (val & 0x0F); + cinfo->arith_dc_U[index] = (UINT8) (val >> 4); + if (cinfo->arith_dc_L[index] > cinfo->arith_dc_U[index]) + ERREXIT1(cinfo, JERR_DAC_VALUE, val); + } + } + + if (length != 0) + ERREXIT(cinfo, JERR_BAD_LENGTH); + + INPUT_SYNC(cinfo); + return TRUE; +} + +#else /* ! D_ARITH_CODING_SUPPORTED */ + +#define get_dac(cinfo) skip_variable(cinfo) + +#endif /* D_ARITH_CODING_SUPPORTED */ + + +LOCAL(boolean) +get_dht (j_decompress_ptr cinfo) +/* Process a DHT marker */ +{ + INT32 length; + UINT8 bits[17]; + UINT8 huffval[256]; + int i, index, count; + JHUFF_TBL **htblptr; + INPUT_VARS(cinfo); + + INPUT_2BYTES(cinfo, length, return FALSE); + length -= 2; + + while (length > 16) { + INPUT_BYTE(cinfo, index, return FALSE); + + TRACEMS1(cinfo, 1, JTRC_DHT, index); + + bits[0] = 0; + count = 0; + for (i = 1; i <= 16; i++) { + INPUT_BYTE(cinfo, bits[i], return FALSE); + count += bits[i]; + } + + length -= 1 + 16; + + TRACEMS8(cinfo, 2, JTRC_HUFFBITS, + bits[1], bits[2], bits[3], bits[4], + bits[5], bits[6], bits[7], bits[8]); + TRACEMS8(cinfo, 2, JTRC_HUFFBITS, + bits[9], bits[10], bits[11], bits[12], + bits[13], bits[14], bits[15], bits[16]); + + /* Here we just do minimal validation of the counts to avoid walking + * off the end of our table space. jdhuff.c will check more carefully. + */ + if (count > 256 || ((INT32) count) > length) + ERREXIT(cinfo, JERR_BAD_HUFF_TABLE); + + for (i = 0; i < count; i++) + INPUT_BYTE(cinfo, huffval[i], return FALSE); + + length -= count; + + if (index & 0x10) { /* AC table definition */ + index -= 0x10; + htblptr = &cinfo->ac_huff_tbl_ptrs[index]; + } else { /* DC table definition */ + htblptr = &cinfo->dc_huff_tbl_ptrs[index]; + } + + if (index < 0 || index >= NUM_HUFF_TBLS) + ERREXIT1(cinfo, JERR_DHT_INDEX, index); + + if (*htblptr == NULL) + *htblptr = jpeg_alloc_huff_table((j_common_ptr) cinfo); + + MEMCOPY((*htblptr)->bits, bits, SIZEOF((*htblptr)->bits)); + MEMCOPY((*htblptr)->huffval, huffval, SIZEOF((*htblptr)->huffval)); + } + + if (length != 0) + ERREXIT(cinfo, JERR_BAD_LENGTH); + + INPUT_SYNC(cinfo); + return TRUE; +} + + +LOCAL(boolean) +get_dqt (j_decompress_ptr cinfo) +/* Process a DQT marker */ +{ + INT32 length, count, i; + int n, prec; + unsigned int tmp; + JQUANT_TBL *quant_ptr; + const int *natural_order; + INPUT_VARS(cinfo); + + INPUT_2BYTES(cinfo, length, return FALSE); + length -= 2; + + while (length > 0) { + length--; + INPUT_BYTE(cinfo, n, return FALSE); + prec = n >> 4; + n &= 0x0F; + + TRACEMS2(cinfo, 1, JTRC_DQT, n, prec); + + if (n >= NUM_QUANT_TBLS) + ERREXIT1(cinfo, JERR_DQT_INDEX, n); + + if (cinfo->quant_tbl_ptrs[n] == NULL) + cinfo->quant_tbl_ptrs[n] = jpeg_alloc_quant_table((j_common_ptr) cinfo); + quant_ptr = cinfo->quant_tbl_ptrs[n]; + + if (prec) { + if (length < DCTSIZE2 * 2) { + /* Initialize full table for safety. */ + for (i = 0; i < DCTSIZE2; i++) { + quant_ptr->quantval[i] = 1; + } + count = length >> 1; + } else + count = DCTSIZE2; + } else { + if (length < DCTSIZE2) { + /* Initialize full table for safety. */ + for (i = 0; i < DCTSIZE2; i++) { + quant_ptr->quantval[i] = 1; + } + count = length; + } else + count = DCTSIZE2; + } + + switch (count) { + case (2*2): natural_order = jpeg_natural_order2; break; + case (3*3): natural_order = jpeg_natural_order3; break; + case (4*4): natural_order = jpeg_natural_order4; break; + case (5*5): natural_order = jpeg_natural_order5; break; + case (6*6): natural_order = jpeg_natural_order6; break; + case (7*7): natural_order = jpeg_natural_order7; break; + default: natural_order = jpeg_natural_order; break; + } + + for (i = 0; i < count; i++) { + if (prec) + INPUT_2BYTES(cinfo, tmp, return FALSE); + else + INPUT_BYTE(cinfo, tmp, return FALSE); + /* We convert the zigzag-order table to natural array order. */ + quant_ptr->quantval[natural_order[i]] = (UINT16) tmp; + } + + if (cinfo->err->trace_level >= 2) { + for (i = 0; i < DCTSIZE2; i += 8) { + TRACEMS8(cinfo, 2, JTRC_QUANTVALS, + quant_ptr->quantval[i], quant_ptr->quantval[i+1], + quant_ptr->quantval[i+2], quant_ptr->quantval[i+3], + quant_ptr->quantval[i+4], quant_ptr->quantval[i+5], + quant_ptr->quantval[i+6], quant_ptr->quantval[i+7]); + } + } + + length -= count; + if (prec) length -= count; + } + + if (length != 0) + ERREXIT(cinfo, JERR_BAD_LENGTH); + + INPUT_SYNC(cinfo); + return TRUE; +} + + +LOCAL(boolean) +get_dri (j_decompress_ptr cinfo) +/* Process a DRI marker */ +{ + INT32 length; + unsigned int tmp; + INPUT_VARS(cinfo); + + INPUT_2BYTES(cinfo, length, return FALSE); + + if (length != 4) + ERREXIT(cinfo, JERR_BAD_LENGTH); + + INPUT_2BYTES(cinfo, tmp, return FALSE); + + TRACEMS1(cinfo, 1, JTRC_DRI, tmp); + + cinfo->restart_interval = tmp; + + INPUT_SYNC(cinfo); + return TRUE; +} + + +/* + * Routines for processing APPn and COM markers. + * These are either saved in memory or discarded, per application request. + * APP0 and APP14 are specially checked to see if they are + * JFIF and Adobe markers, respectively. + */ + +#define APP0_DATA_LEN 14 /* Length of interesting data in APP0 */ +#define APP14_DATA_LEN 12 /* Length of interesting data in APP14 */ +#define APPN_DATA_LEN 14 /* Must be the largest of the above!! */ + + +LOCAL(void) +examine_app0 (j_decompress_ptr cinfo, JOCTET FAR * data, + unsigned int datalen, INT32 remaining) +/* Examine first few bytes from an APP0. + * Take appropriate action if it is a JFIF marker. + * datalen is # of bytes at data[], remaining is length of rest of marker data. + */ +{ + INT32 totallen = (INT32) datalen + remaining; + + if (datalen >= APP0_DATA_LEN && + GETJOCTET(data[0]) == 0x4A && + GETJOCTET(data[1]) == 0x46 && + GETJOCTET(data[2]) == 0x49 && + GETJOCTET(data[3]) == 0x46 && + GETJOCTET(data[4]) == 0) { + /* Found JFIF APP0 marker: save info */ + cinfo->saw_JFIF_marker = TRUE; + cinfo->JFIF_major_version = GETJOCTET(data[5]); + cinfo->JFIF_minor_version = GETJOCTET(data[6]); + cinfo->density_unit = GETJOCTET(data[7]); + cinfo->X_density = (GETJOCTET(data[8]) << 8) + GETJOCTET(data[9]); + cinfo->Y_density = (GETJOCTET(data[10]) << 8) + GETJOCTET(data[11]); + /* Check version. + * Major version must be 1, anything else signals an incompatible change. + * (We used to treat this as an error, but now it's a nonfatal warning, + * because some bozo at Hijaak couldn't read the spec.) + * Minor version should be 0..2, but process anyway if newer. + */ + if (cinfo->JFIF_major_version != 1) + WARNMS2(cinfo, JWRN_JFIF_MAJOR, + cinfo->JFIF_major_version, cinfo->JFIF_minor_version); + /* Generate trace messages */ + TRACEMS5(cinfo, 1, JTRC_JFIF, + cinfo->JFIF_major_version, cinfo->JFIF_minor_version, + cinfo->X_density, cinfo->Y_density, cinfo->density_unit); + /* Validate thumbnail dimensions and issue appropriate messages */ + if (GETJOCTET(data[12]) | GETJOCTET(data[13])) + TRACEMS2(cinfo, 1, JTRC_JFIF_THUMBNAIL, + GETJOCTET(data[12]), GETJOCTET(data[13])); + totallen -= APP0_DATA_LEN; + if (totallen != + ((INT32)GETJOCTET(data[12]) * (INT32)GETJOCTET(data[13]) * (INT32) 3)) + TRACEMS1(cinfo, 1, JTRC_JFIF_BADTHUMBNAILSIZE, (int) totallen); + } else if (datalen >= 6 && + GETJOCTET(data[0]) == 0x4A && + GETJOCTET(data[1]) == 0x46 && + GETJOCTET(data[2]) == 0x58 && + GETJOCTET(data[3]) == 0x58 && + GETJOCTET(data[4]) == 0) { + /* Found JFIF "JFXX" extension APP0 marker */ + /* The library doesn't actually do anything with these, + * but we try to produce a helpful trace message. + */ + switch (GETJOCTET(data[5])) { + case 0x10: + TRACEMS1(cinfo, 1, JTRC_THUMB_JPEG, (int) totallen); + break; + case 0x11: + TRACEMS1(cinfo, 1, JTRC_THUMB_PALETTE, (int) totallen); + break; + case 0x13: + TRACEMS1(cinfo, 1, JTRC_THUMB_RGB, (int) totallen); + break; + default: + TRACEMS2(cinfo, 1, JTRC_JFIF_EXTENSION, + GETJOCTET(data[5]), (int) totallen); + break; + } + } else { + /* Start of APP0 does not match "JFIF" or "JFXX", or too short */ + TRACEMS1(cinfo, 1, JTRC_APP0, (int) totallen); + } +} + + +LOCAL(void) +examine_app14 (j_decompress_ptr cinfo, JOCTET FAR * data, + unsigned int datalen, INT32 remaining) +/* Examine first few bytes from an APP14. + * Take appropriate action if it is an Adobe marker. + * datalen is # of bytes at data[], remaining is length of rest of marker data. + */ +{ + unsigned int version, flags0, flags1, transform; + + if (datalen >= APP14_DATA_LEN && + GETJOCTET(data[0]) == 0x41 && + GETJOCTET(data[1]) == 0x64 && + GETJOCTET(data[2]) == 0x6F && + GETJOCTET(data[3]) == 0x62 && + GETJOCTET(data[4]) == 0x65) { + /* Found Adobe APP14 marker */ + version = (GETJOCTET(data[5]) << 8) + GETJOCTET(data[6]); + flags0 = (GETJOCTET(data[7]) << 8) + GETJOCTET(data[8]); + flags1 = (GETJOCTET(data[9]) << 8) + GETJOCTET(data[10]); + transform = GETJOCTET(data[11]); + TRACEMS4(cinfo, 1, JTRC_ADOBE, version, flags0, flags1, transform); + cinfo->saw_Adobe_marker = TRUE; + cinfo->Adobe_transform = (UINT8) transform; + } else { + /* Start of APP14 does not match "Adobe", or too short */ + TRACEMS1(cinfo, 1, JTRC_APP14, (int) (datalen + remaining)); + } +} + + +METHODDEF(boolean) +get_interesting_appn (j_decompress_ptr cinfo) +/* Process an APP0 or APP14 marker without saving it */ +{ + INT32 length; + JOCTET b[APPN_DATA_LEN]; + unsigned int i, numtoread; + INPUT_VARS(cinfo); + + INPUT_2BYTES(cinfo, length, return FALSE); + length -= 2; + + /* get the interesting part of the marker data */ + if (length >= APPN_DATA_LEN) + numtoread = APPN_DATA_LEN; + else if (length > 0) + numtoread = (unsigned int) length; + else + numtoread = 0; + for (i = 0; i < numtoread; i++) + INPUT_BYTE(cinfo, b[i], return FALSE); + length -= numtoread; + + /* process it */ + switch (cinfo->unread_marker) { + case M_APP0: + examine_app0(cinfo, (JOCTET FAR *) b, numtoread, length); + break; + case M_APP14: + examine_app14(cinfo, (JOCTET FAR *) b, numtoread, length); + break; + default: + /* can't get here unless jpeg_save_markers chooses wrong processor */ + ERREXIT1(cinfo, JERR_UNKNOWN_MARKER, cinfo->unread_marker); + break; + } + + /* skip any remaining data -- could be lots */ + INPUT_SYNC(cinfo); + if (length > 0) + (*cinfo->src->skip_input_data) (cinfo, (long) length); + + return TRUE; +} + + +#ifdef SAVE_MARKERS_SUPPORTED + +METHODDEF(boolean) +save_marker (j_decompress_ptr cinfo) +/* Save an APPn or COM marker into the marker list */ +{ + my_marker_ptr marker = (my_marker_ptr) cinfo->marker; + jpeg_saved_marker_ptr cur_marker = marker->cur_marker; + unsigned int bytes_read, data_length; + JOCTET FAR * data; + INT32 length = 0; + INPUT_VARS(cinfo); + + if (cur_marker == NULL) { + /* begin reading a marker */ + INPUT_2BYTES(cinfo, length, return FALSE); + length -= 2; + if (length >= 0) { /* watch out for bogus length word */ + /* figure out how much we want to save */ + unsigned int limit; + if (cinfo->unread_marker == (int) M_COM) + limit = marker->length_limit_COM; + else + limit = marker->length_limit_APPn[cinfo->unread_marker - (int) M_APP0]; + if ((unsigned int) length < limit) + limit = (unsigned int) length; + /* allocate and initialize the marker item */ + cur_marker = (jpeg_saved_marker_ptr) + (*cinfo->mem->alloc_large) ((j_common_ptr) cinfo, JPOOL_IMAGE, + SIZEOF(struct jpeg_marker_struct) + limit); + cur_marker->next = NULL; + cur_marker->marker = (UINT8) cinfo->unread_marker; + cur_marker->original_length = (unsigned int) length; + cur_marker->data_length = limit; + /* data area is just beyond the jpeg_marker_struct */ + data = cur_marker->data = (JOCTET FAR *) (cur_marker + 1); + marker->cur_marker = cur_marker; + marker->bytes_read = 0; + bytes_read = 0; + data_length = limit; + } else { + /* deal with bogus length word */ + bytes_read = data_length = 0; + data = NULL; + } + } else { + /* resume reading a marker */ + bytes_read = marker->bytes_read; + data_length = cur_marker->data_length; + data = cur_marker->data + bytes_read; + } + + while (bytes_read < data_length) { + INPUT_SYNC(cinfo); /* move the restart point to here */ + marker->bytes_read = bytes_read; + /* If there's not at least one byte in buffer, suspend */ + MAKE_BYTE_AVAIL(cinfo, return FALSE); + /* Copy bytes with reasonable rapidity */ + while (bytes_read < data_length && bytes_in_buffer > 0) { + *data++ = *next_input_byte++; + bytes_in_buffer--; + bytes_read++; + } + } + + /* Done reading what we want to read */ + if (cur_marker != NULL) { /* will be NULL if bogus length word */ + /* Add new marker to end of list */ + if (cinfo->marker_list == NULL) { + cinfo->marker_list = cur_marker; + } else { + jpeg_saved_marker_ptr prev = cinfo->marker_list; + while (prev->next != NULL) + prev = prev->next; + prev->next = cur_marker; + } + /* Reset pointer & calc remaining data length */ + data = cur_marker->data; + length = cur_marker->original_length - data_length; + } + /* Reset to initial state for next marker */ + marker->cur_marker = NULL; + + /* Process the marker if interesting; else just make a generic trace msg */ + switch (cinfo->unread_marker) { + case M_APP0: + examine_app0(cinfo, data, data_length, length); + break; + case M_APP14: + examine_app14(cinfo, data, data_length, length); + break; + default: + TRACEMS2(cinfo, 1, JTRC_MISC_MARKER, cinfo->unread_marker, + (int) (data_length + length)); + break; + } + + /* skip any remaining data -- could be lots */ + INPUT_SYNC(cinfo); /* do before skip_input_data */ + if (length > 0) + (*cinfo->src->skip_input_data) (cinfo, (long) length); + + return TRUE; +} + +#endif /* SAVE_MARKERS_SUPPORTED */ + + +METHODDEF(boolean) +skip_variable (j_decompress_ptr cinfo) +/* Skip over an unknown or uninteresting variable-length marker */ +{ + INT32 length; + INPUT_VARS(cinfo); + + INPUT_2BYTES(cinfo, length, return FALSE); + length -= 2; + + TRACEMS2(cinfo, 1, JTRC_MISC_MARKER, cinfo->unread_marker, (int) length); + + INPUT_SYNC(cinfo); /* do before skip_input_data */ + if (length > 0) + (*cinfo->src->skip_input_data) (cinfo, (long) length); + + return TRUE; +} + + +/* + * Find the next JPEG marker, save it in cinfo->unread_marker. + * Returns FALSE if had to suspend before reaching a marker; + * in that case cinfo->unread_marker is unchanged. + * + * Note that the result might not be a valid marker code, + * but it will never be 0 or FF. + */ + +LOCAL(boolean) +next_marker (j_decompress_ptr cinfo) +{ + int c; + INPUT_VARS(cinfo); + + for (;;) { + INPUT_BYTE(cinfo, c, return FALSE); + /* Skip any non-FF bytes. + * This may look a bit inefficient, but it will not occur in a valid file. + * We sync after each discarded byte so that a suspending data source + * can discard the byte from its buffer. + */ + while (c != 0xFF) { + cinfo->marker->discarded_bytes++; + INPUT_SYNC(cinfo); + INPUT_BYTE(cinfo, c, return FALSE); + } + /* This loop swallows any duplicate FF bytes. Extra FFs are legal as + * pad bytes, so don't count them in discarded_bytes. We assume there + * will not be so many consecutive FF bytes as to overflow a suspending + * data source's input buffer. + */ + do { + INPUT_BYTE(cinfo, c, return FALSE); + } while (c == 0xFF); + if (c != 0) + break; /* found a valid marker, exit loop */ + /* Reach here if we found a stuffed-zero data sequence (FF/00). + * Discard it and loop back to try again. + */ + cinfo->marker->discarded_bytes += 2; + INPUT_SYNC(cinfo); + } + + if (cinfo->marker->discarded_bytes != 0) { + WARNMS2(cinfo, JWRN_EXTRANEOUS_DATA, cinfo->marker->discarded_bytes, c); + cinfo->marker->discarded_bytes = 0; + } + + cinfo->unread_marker = c; + + INPUT_SYNC(cinfo); + return TRUE; +} + + +LOCAL(boolean) +first_marker (j_decompress_ptr cinfo) +/* Like next_marker, but used to obtain the initial SOI marker. */ +/* For this marker, we do not allow preceding garbage or fill; otherwise, + * we might well scan an entire input file before realizing it ain't JPEG. + * If an application wants to process non-JFIF files, it must seek to the + * SOI before calling the JPEG library. + */ +{ + int c, c2; + INPUT_VARS(cinfo); + + INPUT_BYTE(cinfo, c, return FALSE); + INPUT_BYTE(cinfo, c2, return FALSE); + if (c != 0xFF || c2 != (int) M_SOI) + ERREXIT2(cinfo, JERR_NO_SOI, c, c2); + + cinfo->unread_marker = c2; + + INPUT_SYNC(cinfo); + return TRUE; +} + + +/* + * Read markers until SOS or EOI. + * + * Returns same codes as are defined for jpeg_consume_input: + * JPEG_SUSPENDED, JPEG_REACHED_SOS, or JPEG_REACHED_EOI. + * + * Note: This function may return a pseudo SOS marker (with zero + * component number) for treat by input controller's consume_input. + * consume_input itself should filter out (skip) the pseudo marker + * after processing for the caller. + */ + +METHODDEF(int) +read_markers (j_decompress_ptr cinfo) +{ + /* Outer loop repeats once for each marker. */ + for (;;) { + /* Collect the marker proper, unless we already did. */ + /* NB: first_marker() enforces the requirement that SOI appear first. */ + if (cinfo->unread_marker == 0) { + if (! cinfo->marker->saw_SOI) { + if (! first_marker(cinfo)) + return JPEG_SUSPENDED; + } else { + if (! next_marker(cinfo)) + return JPEG_SUSPENDED; + } + } + /* At this point cinfo->unread_marker contains the marker code and the + * input point is just past the marker proper, but before any parameters. + * A suspension will cause us to return with this state still true. + */ + switch (cinfo->unread_marker) { + case M_SOI: + if (! get_soi(cinfo)) + return JPEG_SUSPENDED; + break; + + case M_SOF0: /* Baseline */ + if (! get_sof(cinfo, TRUE, FALSE, FALSE)) + return JPEG_SUSPENDED; + break; + + case M_SOF1: /* Extended sequential, Huffman */ + if (! get_sof(cinfo, FALSE, FALSE, FALSE)) + return JPEG_SUSPENDED; + break; + + case M_SOF2: /* Progressive, Huffman */ + if (! get_sof(cinfo, FALSE, TRUE, FALSE)) + return JPEG_SUSPENDED; + break; + + case M_SOF9: /* Extended sequential, arithmetic */ + if (! get_sof(cinfo, FALSE, FALSE, TRUE)) + return JPEG_SUSPENDED; + break; + + case M_SOF10: /* Progressive, arithmetic */ + if (! get_sof(cinfo, FALSE, TRUE, TRUE)) + return JPEG_SUSPENDED; + break; + + /* Currently unsupported SOFn types */ + case M_SOF3: /* Lossless, Huffman */ + case M_SOF5: /* Differential sequential, Huffman */ + case M_SOF6: /* Differential progressive, Huffman */ + case M_SOF7: /* Differential lossless, Huffman */ + case M_JPG: /* Reserved for JPEG extensions */ + case M_SOF11: /* Lossless, arithmetic */ + case M_SOF13: /* Differential sequential, arithmetic */ + case M_SOF14: /* Differential progressive, arithmetic */ + case M_SOF15: /* Differential lossless, arithmetic */ + ERREXIT1(cinfo, JERR_SOF_UNSUPPORTED, cinfo->unread_marker); + break; + + case M_SOS: + if (! get_sos(cinfo)) + return JPEG_SUSPENDED; + cinfo->unread_marker = 0; /* processed the marker */ + return JPEG_REACHED_SOS; + + case M_EOI: + TRACEMS(cinfo, 1, JTRC_EOI); + cinfo->unread_marker = 0; /* processed the marker */ + return JPEG_REACHED_EOI; + + case M_DAC: + if (! get_dac(cinfo)) + return JPEG_SUSPENDED; + break; + + case M_DHT: + if (! get_dht(cinfo)) + return JPEG_SUSPENDED; + break; + + case M_DQT: + if (! get_dqt(cinfo)) + return JPEG_SUSPENDED; + break; + + case M_DRI: + if (! get_dri(cinfo)) + return JPEG_SUSPENDED; + break; + + case M_APP0: + case M_APP1: + case M_APP2: + case M_APP3: + case M_APP4: + case M_APP5: + case M_APP6: + case M_APP7: + case M_APP8: + case M_APP9: + case M_APP10: + case M_APP11: + case M_APP12: + case M_APP13: + case M_APP14: + case M_APP15: + if (! (*((my_marker_ptr) cinfo->marker)->process_APPn[ + cinfo->unread_marker - (int) M_APP0]) (cinfo)) + return JPEG_SUSPENDED; + break; + + case M_COM: + if (! (*((my_marker_ptr) cinfo->marker)->process_COM) (cinfo)) + return JPEG_SUSPENDED; + break; + + case M_RST0: /* these are all parameterless */ + case M_RST1: + case M_RST2: + case M_RST3: + case M_RST4: + case M_RST5: + case M_RST6: + case M_RST7: + case M_TEM: + TRACEMS1(cinfo, 1, JTRC_PARMLESS_MARKER, cinfo->unread_marker); + break; + + case M_DNL: /* Ignore DNL ... perhaps the wrong thing */ + if (! skip_variable(cinfo)) + return JPEG_SUSPENDED; + break; + + default: /* must be DHP, EXP, JPGn, or RESn */ + /* For now, we treat the reserved markers as fatal errors since they are + * likely to be used to signal incompatible JPEG Part 3 extensions. + * Once the JPEG 3 version-number marker is well defined, this code + * ought to change! + */ + ERREXIT1(cinfo, JERR_UNKNOWN_MARKER, cinfo->unread_marker); + break; + } + /* Successfully processed marker, so reset state variable */ + cinfo->unread_marker = 0; + } /* end loop */ +} + + +/* + * Read a restart marker, which is expected to appear next in the datastream; + * if the marker is not there, take appropriate recovery action. + * Returns FALSE if suspension is required. + * + * This is called by the entropy decoder after it has read an appropriate + * number of MCUs. cinfo->unread_marker may be nonzero if the entropy decoder + * has already read a marker from the data source. Under normal conditions + * cinfo->unread_marker will be reset to 0 before returning; if not reset, + * it holds a marker which the decoder will be unable to read past. + */ + +METHODDEF(boolean) +read_restart_marker (j_decompress_ptr cinfo) +{ + /* Obtain a marker unless we already did. */ + /* Note that next_marker will complain if it skips any data. */ + if (cinfo->unread_marker == 0) { + if (! next_marker(cinfo)) + return FALSE; + } + + if (cinfo->unread_marker == + ((int) M_RST0 + cinfo->marker->next_restart_num)) { + /* Normal case --- swallow the marker and let entropy decoder continue */ + TRACEMS1(cinfo, 3, JTRC_RST, cinfo->marker->next_restart_num); + cinfo->unread_marker = 0; + } else { + /* Uh-oh, the restart markers have been messed up. */ + /* Let the data source manager determine how to resync. */ + if (! (*cinfo->src->resync_to_restart) (cinfo, + cinfo->marker->next_restart_num)) + return FALSE; + } + + /* Update next-restart state */ + cinfo->marker->next_restart_num = (cinfo->marker->next_restart_num + 1) & 7; + + return TRUE; +} + + +/* + * This is the default resync_to_restart method for data source managers + * to use if they don't have any better approach. Some data source managers + * may be able to back up, or may have additional knowledge about the data + * which permits a more intelligent recovery strategy; such managers would + * presumably supply their own resync method. + * + * read_restart_marker calls resync_to_restart if it finds a marker other than + * the restart marker it was expecting. (This code is *not* used unless + * a nonzero restart interval has been declared.) cinfo->unread_marker is + * the marker code actually found (might be anything, except 0 or FF). + * The desired restart marker number (0..7) is passed as a parameter. + * This routine is supposed to apply whatever error recovery strategy seems + * appropriate in order to position the input stream to the next data segment. + * Note that cinfo->unread_marker is treated as a marker appearing before + * the current data-source input point; usually it should be reset to zero + * before returning. + * Returns FALSE if suspension is required. + * + * This implementation is substantially constrained by wanting to treat the + * input as a data stream; this means we can't back up. Therefore, we have + * only the following actions to work with: + * 1. Simply discard the marker and let the entropy decoder resume at next + * byte of file. + * 2. Read forward until we find another marker, discarding intervening + * data. (In theory we could look ahead within the current bufferload, + * without having to discard data if we don't find the desired marker. + * This idea is not implemented here, in part because it makes behavior + * dependent on buffer size and chance buffer-boundary positions.) + * 3. Leave the marker unread (by failing to zero cinfo->unread_marker). + * This will cause the entropy decoder to process an empty data segment, + * inserting dummy zeroes, and then we will reprocess the marker. + * + * #2 is appropriate if we think the desired marker lies ahead, while #3 is + * appropriate if the found marker is a future restart marker (indicating + * that we have missed the desired restart marker, probably because it got + * corrupted). + * We apply #2 or #3 if the found marker is a restart marker no more than + * two counts behind or ahead of the expected one. We also apply #2 if the + * found marker is not a legal JPEG marker code (it's certainly bogus data). + * If the found marker is a restart marker more than 2 counts away, we do #1 + * (too much risk that the marker is erroneous; with luck we will be able to + * resync at some future point). + * For any valid non-restart JPEG marker, we apply #3. This keeps us from + * overrunning the end of a scan. An implementation limited to single-scan + * files might find it better to apply #2 for markers other than EOI, since + * any other marker would have to be bogus data in that case. + */ + +GLOBAL(boolean) +jpeg_resync_to_restart (j_decompress_ptr cinfo, int desired) +{ + int marker = cinfo->unread_marker; + int action = 1; + + /* Always put up a warning. */ + WARNMS2(cinfo, JWRN_MUST_RESYNC, marker, desired); + + /* Outer loop handles repeated decision after scanning forward. */ + for (;;) { + if (marker < (int) M_SOF0) + action = 2; /* invalid marker */ + else if (marker < (int) M_RST0 || marker > (int) M_RST7) + action = 3; /* valid non-restart marker */ + else { + if (marker == ((int) M_RST0 + ((desired+1) & 7)) || + marker == ((int) M_RST0 + ((desired+2) & 7))) + action = 3; /* one of the next two expected restarts */ + else if (marker == ((int) M_RST0 + ((desired-1) & 7)) || + marker == ((int) M_RST0 + ((desired-2) & 7))) + action = 2; /* a prior restart, so advance */ + else + action = 1; /* desired restart or too far away */ + } + TRACEMS2(cinfo, 4, JTRC_RECOVERY_ACTION, marker, action); + switch (action) { + case 1: + /* Discard marker and let entropy decoder resume processing. */ + cinfo->unread_marker = 0; + return TRUE; + case 2: + /* Scan to the next marker, and repeat the decision loop. */ + if (! next_marker(cinfo)) + return FALSE; + marker = cinfo->unread_marker; + break; + case 3: + /* Return without advancing past this marker. */ + /* Entropy decoder will be forced to process an empty segment. */ + return TRUE; + } + } /* end loop */ +} + + +/* + * Reset marker processing state to begin a fresh datastream. + */ + +METHODDEF(void) +reset_marker_reader (j_decompress_ptr cinfo) +{ + my_marker_ptr marker = (my_marker_ptr) cinfo->marker; + + cinfo->comp_info = NULL; /* until allocated by get_sof */ + cinfo->input_scan_number = 0; /* no SOS seen yet */ + cinfo->unread_marker = 0; /* no pending marker */ + marker->pub.saw_SOI = FALSE; /* set internal state too */ + marker->pub.saw_SOF = FALSE; + marker->pub.discarded_bytes = 0; + marker->cur_marker = NULL; +} + + +/* + * Initialize the marker reader module. + * This is called only once, when the decompression object is created. + */ + +GLOBAL(void) +jinit_marker_reader (j_decompress_ptr cinfo) +{ + my_marker_ptr marker; + int i; + + /* Create subobject in permanent pool */ + marker = (my_marker_ptr) + (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_PERMANENT, + SIZEOF(my_marker_reader)); + cinfo->marker = (struct jpeg_marker_reader *) marker; + /* Initialize public method pointers */ + marker->pub.reset_marker_reader = reset_marker_reader; + marker->pub.read_markers = read_markers; + marker->pub.read_restart_marker = read_restart_marker; + /* Initialize COM/APPn processing. + * By default, we examine and then discard APP0 and APP14, + * but simply discard COM and all other APPn. + */ + marker->process_COM = skip_variable; + marker->length_limit_COM = 0; + for (i = 0; i < 16; i++) { + marker->process_APPn[i] = skip_variable; + marker->length_limit_APPn[i] = 0; + } + marker->process_APPn[0] = get_interesting_appn; + marker->process_APPn[14] = get_interesting_appn; + /* Reset marker processing state */ + reset_marker_reader(cinfo); +} + + +/* + * Control saving of COM and APPn markers into marker_list. + */ + +#ifdef SAVE_MARKERS_SUPPORTED + +GLOBAL(void) +jpeg_save_markers (j_decompress_ptr cinfo, int marker_code, + unsigned int length_limit) +{ + my_marker_ptr marker = (my_marker_ptr) cinfo->marker; + long maxlength; + jpeg_marker_parser_method processor; + + /* Length limit mustn't be larger than what we can allocate + * (should only be a concern in a 16-bit environment). + */ + maxlength = cinfo->mem->max_alloc_chunk - SIZEOF(struct jpeg_marker_struct); + if (((long) length_limit) > maxlength) + length_limit = (unsigned int) maxlength; + + /* Choose processor routine to use. + * APP0/APP14 have special requirements. + */ + if (length_limit) { + processor = save_marker; + /* If saving APP0/APP14, save at least enough for our internal use. */ + if (marker_code == (int) M_APP0 && length_limit < APP0_DATA_LEN) + length_limit = APP0_DATA_LEN; + else if (marker_code == (int) M_APP14 && length_limit < APP14_DATA_LEN) + length_limit = APP14_DATA_LEN; + } else { + processor = skip_variable; + /* If discarding APP0/APP14, use our regular on-the-fly processor. */ + if (marker_code == (int) M_APP0 || marker_code == (int) M_APP14) + processor = get_interesting_appn; + } + + if (marker_code == (int) M_COM) { + marker->process_COM = processor; + marker->length_limit_COM = length_limit; + } else if (marker_code >= (int) M_APP0 && marker_code <= (int) M_APP15) { + marker->process_APPn[marker_code - (int) M_APP0] = processor; + marker->length_limit_APPn[marker_code - (int) M_APP0] = length_limit; + } else + ERREXIT1(cinfo, JERR_UNKNOWN_MARKER, marker_code); +} + +#endif /* SAVE_MARKERS_SUPPORTED */ + + +/* + * Install a special processing method for COM or APPn markers. + */ + +GLOBAL(void) +jpeg_set_marker_processor (j_decompress_ptr cinfo, int marker_code, + jpeg_marker_parser_method routine) +{ + my_marker_ptr marker = (my_marker_ptr) cinfo->marker; + + if (marker_code == (int) M_COM) + marker->process_COM = routine; + else if (marker_code >= (int) M_APP0 && marker_code <= (int) M_APP15) + marker->process_APPn[marker_code - (int) M_APP0] = routine; + else + ERREXIT1(cinfo, JERR_UNKNOWN_MARKER, marker_code); +} diff --git a/jpeg/jdmaster.c b/jpeg/jdmaster.c new file mode 100644 index 0000000..fef72a2 --- /dev/null +++ b/jpeg/jdmaster.c @@ -0,0 +1,531 @@ +/* + * jdmaster.c + * + * Copyright (C) 1991-1997, Thomas G. Lane. + * Modified 2002-2011 by Guido Vollbeding. + * This file is part of the Independent JPEG Group's software. + * For conditions of distribution and use, see the accompanying README file. + * + * This file contains master control logic for the JPEG decompressor. + * These routines are concerned with selecting the modules to be executed + * and with determining the number of passes and the work to be done in each + * pass. + */ + +#define JPEG_INTERNALS +#include "jinclude.h" +#include "jpeglib.h" + + +/* Private state */ + +typedef struct { + struct jpeg_decomp_master pub; /* public fields */ + + int pass_number; /* # of passes completed */ + + boolean using_merged_upsample; /* TRUE if using merged upsample/cconvert */ + + /* Saved references to initialized quantizer modules, + * in case we need to switch modes. + */ + struct jpeg_color_quantizer * quantizer_1pass; + struct jpeg_color_quantizer * quantizer_2pass; +} my_decomp_master; + +typedef my_decomp_master * my_master_ptr; + + +/* + * Determine whether merged upsample/color conversion should be used. + * CRUCIAL: this must match the actual capabilities of jdmerge.c! + */ + +LOCAL(boolean) +use_merged_upsample (j_decompress_ptr cinfo) +{ +#ifdef UPSAMPLE_MERGING_SUPPORTED + /* Merging is the equivalent of plain box-filter upsampling */ + if (cinfo->do_fancy_upsampling || cinfo->CCIR601_sampling) + return FALSE; + /* jdmerge.c only supports YCC=>RGB color conversion */ + if (cinfo->jpeg_color_space != JCS_YCbCr || cinfo->num_components != 3 || + cinfo->out_color_space != JCS_RGB || + cinfo->out_color_components != RGB_PIXELSIZE) + return FALSE; + /* and it only handles 2h1v or 2h2v sampling ratios */ + if (cinfo->comp_info[0].h_samp_factor != 2 || + cinfo->comp_info[1].h_samp_factor != 1 || + cinfo->comp_info[2].h_samp_factor != 1 || + cinfo->comp_info[0].v_samp_factor > 2 || + cinfo->comp_info[1].v_samp_factor != 1 || + cinfo->comp_info[2].v_samp_factor != 1) + return FALSE; + /* furthermore, it doesn't work if we've scaled the IDCTs differently */ + if (cinfo->comp_info[0].DCT_h_scaled_size != cinfo->min_DCT_h_scaled_size || + cinfo->comp_info[1].DCT_h_scaled_size != cinfo->min_DCT_h_scaled_size || + cinfo->comp_info[2].DCT_h_scaled_size != cinfo->min_DCT_h_scaled_size || + cinfo->comp_info[0].DCT_v_scaled_size != cinfo->min_DCT_v_scaled_size || + cinfo->comp_info[1].DCT_v_scaled_size != cinfo->min_DCT_v_scaled_size || + cinfo->comp_info[2].DCT_v_scaled_size != cinfo->min_DCT_v_scaled_size) + return FALSE; + /* ??? also need to test for upsample-time rescaling, when & if supported */ + return TRUE; /* by golly, it'll work... */ +#else + return FALSE; +#endif +} + + +/* + * Compute output image dimensions and related values. + * NOTE: this is exported for possible use by application. + * Hence it mustn't do anything that can't be done twice. + * Also note that it may be called before the master module is initialized! + */ + +GLOBAL(void) +jpeg_calc_output_dimensions (j_decompress_ptr cinfo) +/* Do computations that are needed before master selection phase. + * This function is used for full decompression. + */ +{ +#ifdef IDCT_SCALING_SUPPORTED + int ci; + jpeg_component_info *compptr; +#endif + + /* Prevent application from calling me at wrong times */ + if (cinfo->global_state != DSTATE_READY) + ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state); + + /* Compute core output image dimensions and DCT scaling choices. */ + jpeg_core_output_dimensions(cinfo); + +#ifdef IDCT_SCALING_SUPPORTED + + /* In selecting the actual DCT scaling for each component, we try to + * scale up the chroma components via IDCT scaling rather than upsampling. + * This saves time if the upsampler gets to use 1:1 scaling. + * Note this code adapts subsampling ratios which are powers of 2. + */ + for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components; + ci++, compptr++) { + int ssize = 1; + while (cinfo->min_DCT_h_scaled_size * ssize <= + (cinfo->do_fancy_upsampling ? DCTSIZE : DCTSIZE / 2) && + (cinfo->max_h_samp_factor % (compptr->h_samp_factor * ssize * 2)) == 0) { + ssize = ssize * 2; + } + compptr->DCT_h_scaled_size = cinfo->min_DCT_h_scaled_size * ssize; + ssize = 1; + while (cinfo->min_DCT_v_scaled_size * ssize <= + (cinfo->do_fancy_upsampling ? DCTSIZE : DCTSIZE / 2) && + (cinfo->max_v_samp_factor % (compptr->v_samp_factor * ssize * 2)) == 0) { + ssize = ssize * 2; + } + compptr->DCT_v_scaled_size = cinfo->min_DCT_v_scaled_size * ssize; + + /* We don't support IDCT ratios larger than 2. */ + if (compptr->DCT_h_scaled_size > compptr->DCT_v_scaled_size * 2) + compptr->DCT_h_scaled_size = compptr->DCT_v_scaled_size * 2; + else if (compptr->DCT_v_scaled_size > compptr->DCT_h_scaled_size * 2) + compptr->DCT_v_scaled_size = compptr->DCT_h_scaled_size * 2; + } + + /* Recompute downsampled dimensions of components; + * application needs to know these if using raw downsampled data. + */ + for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components; + ci++, compptr++) { + /* Size in samples, after IDCT scaling */ + compptr->downsampled_width = (JDIMENSION) + jdiv_round_up((long) cinfo->image_width * + (long) (compptr->h_samp_factor * compptr->DCT_h_scaled_size), + (long) (cinfo->max_h_samp_factor * cinfo->block_size)); + compptr->downsampled_height = (JDIMENSION) + jdiv_round_up((long) cinfo->image_height * + (long) (compptr->v_samp_factor * compptr->DCT_v_scaled_size), + (long) (cinfo->max_v_samp_factor * cinfo->block_size)); + } + +#endif /* IDCT_SCALING_SUPPORTED */ + + /* Report number of components in selected colorspace. */ + /* Probably this should be in the color conversion module... */ + switch (cinfo->out_color_space) { + case JCS_GRAYSCALE: + cinfo->out_color_components = 1; + break; + case JCS_RGB: + cinfo->out_color_components = RGB_PIXELSIZE; + break; + case JCS_YCbCr: + cinfo->out_color_components = 3; + break; + case JCS_CMYK: + case JCS_YCCK: + cinfo->out_color_components = 4; + break; + default: /* else must be same colorspace as in file */ + cinfo->out_color_components = cinfo->num_components; + break; + } + cinfo->output_components = (cinfo->quantize_colors ? 1 : + cinfo->out_color_components); + + /* See if upsampler will want to emit more than one row at a time */ + if (use_merged_upsample(cinfo)) + cinfo->rec_outbuf_height = cinfo->max_v_samp_factor; + else + cinfo->rec_outbuf_height = 1; +} + + +/* + * Several decompression processes need to range-limit values to the range + * 0..MAXJSAMPLE; the input value may fall somewhat outside this range + * due to noise introduced by quantization, roundoff error, etc. These + * processes are inner loops and need to be as fast as possible. On most + * machines, particularly CPUs with pipelines or instruction prefetch, + * a (subscript-check-less) C table lookup + * x = sample_range_limit[x]; + * is faster than explicit tests + * if (x < 0) x = 0; + * else if (x > MAXJSAMPLE) x = MAXJSAMPLE; + * These processes all use a common table prepared by the routine below. + * + * For most steps we can mathematically guarantee that the initial value + * of x is within MAXJSAMPLE+1 of the legal range, so a table running from + * -(MAXJSAMPLE+1) to 2*MAXJSAMPLE+1 is sufficient. But for the initial + * limiting step (just after the IDCT), a wildly out-of-range value is + * possible if the input data is corrupt. To avoid any chance of indexing + * off the end of memory and getting a bad-pointer trap, we perform the + * post-IDCT limiting thus: + * x = range_limit[x & MASK]; + * where MASK is 2 bits wider than legal sample data, ie 10 bits for 8-bit + * samples. Under normal circumstances this is more than enough range and + * a correct output will be generated; with bogus input data the mask will + * cause wraparound, and we will safely generate a bogus-but-in-range output. + * For the post-IDCT step, we want to convert the data from signed to unsigned + * representation by adding CENTERJSAMPLE at the same time that we limit it. + * So the post-IDCT limiting table ends up looking like this: + * CENTERJSAMPLE,CENTERJSAMPLE+1,...,MAXJSAMPLE, + * MAXJSAMPLE (repeat 2*(MAXJSAMPLE+1)-CENTERJSAMPLE times), + * 0 (repeat 2*(MAXJSAMPLE+1)-CENTERJSAMPLE times), + * 0,1,...,CENTERJSAMPLE-1 + * Negative inputs select values from the upper half of the table after + * masking. + * + * We can save some space by overlapping the start of the post-IDCT table + * with the simpler range limiting table. The post-IDCT table begins at + * sample_range_limit + CENTERJSAMPLE. + * + * Note that the table is allocated in near data space on PCs; it's small + * enough and used often enough to justify this. + */ + +LOCAL(void) +prepare_range_limit_table (j_decompress_ptr cinfo) +/* Allocate and fill in the sample_range_limit table */ +{ + JSAMPLE * table; + int i; + + table = (JSAMPLE *) + (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, + (5 * (MAXJSAMPLE+1) + CENTERJSAMPLE) * SIZEOF(JSAMPLE)); + table += (MAXJSAMPLE+1); /* allow negative subscripts of simple table */ + cinfo->sample_range_limit = table; + /* First segment of "simple" table: limit[x] = 0 for x < 0 */ + MEMZERO(table - (MAXJSAMPLE+1), (MAXJSAMPLE+1) * SIZEOF(JSAMPLE)); + /* Main part of "simple" table: limit[x] = x */ + for (i = 0; i <= MAXJSAMPLE; i++) + table[i] = (JSAMPLE) i; + table += CENTERJSAMPLE; /* Point to where post-IDCT table starts */ + /* End of simple table, rest of first half of post-IDCT table */ + for (i = CENTERJSAMPLE; i < 2*(MAXJSAMPLE+1); i++) + table[i] = MAXJSAMPLE; + /* Second half of post-IDCT table */ + MEMZERO(table + (2 * (MAXJSAMPLE+1)), + (2 * (MAXJSAMPLE+1) - CENTERJSAMPLE) * SIZEOF(JSAMPLE)); + MEMCOPY(table + (4 * (MAXJSAMPLE+1) - CENTERJSAMPLE), + cinfo->sample_range_limit, CENTERJSAMPLE * SIZEOF(JSAMPLE)); +} + + +/* + * Master selection of decompression modules. + * This is done once at jpeg_start_decompress time. We determine + * which modules will be used and give them appropriate initialization calls. + * We also initialize the decompressor input side to begin consuming data. + * + * Since jpeg_read_header has finished, we know what is in the SOF + * and (first) SOS markers. We also have all the application parameter + * settings. + */ + +LOCAL(void) +master_selection (j_decompress_ptr cinfo) +{ + my_master_ptr master = (my_master_ptr) cinfo->master; + boolean use_c_buffer; + long samplesperrow; + JDIMENSION jd_samplesperrow; + + /* Initialize dimensions and other stuff */ + jpeg_calc_output_dimensions(cinfo); + prepare_range_limit_table(cinfo); + + /* Width of an output scanline must be representable as JDIMENSION. */ + samplesperrow = (long) cinfo->output_width * (long) cinfo->out_color_components; + jd_samplesperrow = (JDIMENSION) samplesperrow; + if ((long) jd_samplesperrow != samplesperrow) + ERREXIT(cinfo, JERR_WIDTH_OVERFLOW); + + /* Initialize my private state */ + master->pass_number = 0; + master->using_merged_upsample = use_merged_upsample(cinfo); + + /* Color quantizer selection */ + master->quantizer_1pass = NULL; + master->quantizer_2pass = NULL; + /* No mode changes if not using buffered-image mode. */ + if (! cinfo->quantize_colors || ! cinfo->buffered_image) { + cinfo->enable_1pass_quant = FALSE; + cinfo->enable_external_quant = FALSE; + cinfo->enable_2pass_quant = FALSE; + } + if (cinfo->quantize_colors) { + if (cinfo->raw_data_out) + ERREXIT(cinfo, JERR_NOTIMPL); + /* 2-pass quantizer only works in 3-component color space. */ + if (cinfo->out_color_components != 3) { + cinfo->enable_1pass_quant = TRUE; + cinfo->enable_external_quant = FALSE; + cinfo->enable_2pass_quant = FALSE; + cinfo->colormap = NULL; + } else if (cinfo->colormap != NULL) { + cinfo->enable_external_quant = TRUE; + } else if (cinfo->two_pass_quantize) { + cinfo->enable_2pass_quant = TRUE; + } else { + cinfo->enable_1pass_quant = TRUE; + } + + if (cinfo->enable_1pass_quant) { +#ifdef QUANT_1PASS_SUPPORTED + jinit_1pass_quantizer(cinfo); + master->quantizer_1pass = cinfo->cquantize; +#else + ERREXIT(cinfo, JERR_NOT_COMPILED); +#endif + } + + /* We use the 2-pass code to map to external colormaps. */ + if (cinfo->enable_2pass_quant || cinfo->enable_external_quant) { +#ifdef QUANT_2PASS_SUPPORTED + jinit_2pass_quantizer(cinfo); + master->quantizer_2pass = cinfo->cquantize; +#else + ERREXIT(cinfo, JERR_NOT_COMPILED); +#endif + } + /* If both quantizers are initialized, the 2-pass one is left active; + * this is necessary for starting with quantization to an external map. + */ + } + + /* Post-processing: in particular, color conversion first */ + if (! cinfo->raw_data_out) { + if (master->using_merged_upsample) { +#ifdef UPSAMPLE_MERGING_SUPPORTED + jinit_merged_upsampler(cinfo); /* does color conversion too */ +#else + ERREXIT(cinfo, JERR_NOT_COMPILED); +#endif + } else { + jinit_color_deconverter(cinfo); + jinit_upsampler(cinfo); + } + jinit_d_post_controller(cinfo, cinfo->enable_2pass_quant); + } + /* Inverse DCT */ + jinit_inverse_dct(cinfo); + /* Entropy decoding: either Huffman or arithmetic coding. */ + if (cinfo->arith_code) + jinit_arith_decoder(cinfo); + else { + jinit_huff_decoder(cinfo); + } + + /* Initialize principal buffer controllers. */ + use_c_buffer = cinfo->inputctl->has_multiple_scans || cinfo->buffered_image; + jinit_d_coef_controller(cinfo, use_c_buffer); + + if (! cinfo->raw_data_out) + jinit_d_main_controller(cinfo, FALSE /* never need full buffer here */); + + /* We can now tell the memory manager to allocate virtual arrays. */ + (*cinfo->mem->realize_virt_arrays) ((j_common_ptr) cinfo); + + /* Initialize input side of decompressor to consume first scan. */ + (*cinfo->inputctl->start_input_pass) (cinfo); + +#ifdef D_MULTISCAN_FILES_SUPPORTED + /* If jpeg_start_decompress will read the whole file, initialize + * progress monitoring appropriately. The input step is counted + * as one pass. + */ + if (cinfo->progress != NULL && ! cinfo->buffered_image && + cinfo->inputctl->has_multiple_scans) { + int nscans; + /* Estimate number of scans to set pass_limit. */ + if (cinfo->progressive_mode) { + /* Arbitrarily estimate 2 interleaved DC scans + 3 AC scans/component. */ + nscans = 2 + 3 * cinfo->num_components; + } else { + /* For a nonprogressive multiscan file, estimate 1 scan per component. */ + nscans = cinfo->num_components; + } + cinfo->progress->pass_counter = 0L; + cinfo->progress->pass_limit = (long) cinfo->total_iMCU_rows * nscans; + cinfo->progress->completed_passes = 0; + cinfo->progress->total_passes = (cinfo->enable_2pass_quant ? 3 : 2); + /* Count the input pass as done */ + master->pass_number++; + } +#endif /* D_MULTISCAN_FILES_SUPPORTED */ +} + + +/* + * Per-pass setup. + * This is called at the beginning of each output pass. We determine which + * modules will be active during this pass and give them appropriate + * start_pass calls. We also set is_dummy_pass to indicate whether this + * is a "real" output pass or a dummy pass for color quantization. + * (In the latter case, jdapistd.c will crank the pass to completion.) + */ + +METHODDEF(void) +prepare_for_output_pass (j_decompress_ptr cinfo) +{ + my_master_ptr master = (my_master_ptr) cinfo->master; + + if (master->pub.is_dummy_pass) { +#ifdef QUANT_2PASS_SUPPORTED + /* Final pass of 2-pass quantization */ + master->pub.is_dummy_pass = FALSE; + (*cinfo->cquantize->start_pass) (cinfo, FALSE); + (*cinfo->post->start_pass) (cinfo, JBUF_CRANK_DEST); + (*cinfo->main->start_pass) (cinfo, JBUF_CRANK_DEST); +#else + ERREXIT(cinfo, JERR_NOT_COMPILED); +#endif /* QUANT_2PASS_SUPPORTED */ + } else { + if (cinfo->quantize_colors && cinfo->colormap == NULL) { + /* Select new quantization method */ + if (cinfo->two_pass_quantize && cinfo->enable_2pass_quant) { + cinfo->cquantize = master->quantizer_2pass; + master->pub.is_dummy_pass = TRUE; + } else if (cinfo->enable_1pass_quant) { + cinfo->cquantize = master->quantizer_1pass; + } else { + ERREXIT(cinfo, JERR_MODE_CHANGE); + } + } + (*cinfo->idct->start_pass) (cinfo); + (*cinfo->coef->start_output_pass) (cinfo); + if (! cinfo->raw_data_out) { + if (! master->using_merged_upsample) + (*cinfo->cconvert->start_pass) (cinfo); + (*cinfo->upsample->start_pass) (cinfo); + if (cinfo->quantize_colors) + (*cinfo->cquantize->start_pass) (cinfo, master->pub.is_dummy_pass); + (*cinfo->post->start_pass) (cinfo, + (master->pub.is_dummy_pass ? JBUF_SAVE_AND_PASS : JBUF_PASS_THRU)); + (*cinfo->main->start_pass) (cinfo, JBUF_PASS_THRU); + } + } + + /* Set up progress monitor's pass info if present */ + if (cinfo->progress != NULL) { + cinfo->progress->completed_passes = master->pass_number; + cinfo->progress->total_passes = master->pass_number + + (master->pub.is_dummy_pass ? 2 : 1); + /* In buffered-image mode, we assume one more output pass if EOI not + * yet reached, but no more passes if EOI has been reached. + */ + if (cinfo->buffered_image && ! cinfo->inputctl->eoi_reached) { + cinfo->progress->total_passes += (cinfo->enable_2pass_quant ? 2 : 1); + } + } +} + + +/* + * Finish up at end of an output pass. + */ + +METHODDEF(void) +finish_output_pass (j_decompress_ptr cinfo) +{ + my_master_ptr master = (my_master_ptr) cinfo->master; + + if (cinfo->quantize_colors) + (*cinfo->cquantize->finish_pass) (cinfo); + master->pass_number++; +} + + +#ifdef D_MULTISCAN_FILES_SUPPORTED + +/* + * Switch to a new external colormap between output passes. + */ + +GLOBAL(void) +jpeg_new_colormap (j_decompress_ptr cinfo) +{ + my_master_ptr master = (my_master_ptr) cinfo->master; + + /* Prevent application from calling me at wrong times */ + if (cinfo->global_state != DSTATE_BUFIMAGE) + ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state); + + if (cinfo->quantize_colors && cinfo->enable_external_quant && + cinfo->colormap != NULL) { + /* Select 2-pass quantizer for external colormap use */ + cinfo->cquantize = master->quantizer_2pass; + /* Notify quantizer of colormap change */ + (*cinfo->cquantize->new_color_map) (cinfo); + master->pub.is_dummy_pass = FALSE; /* just in case */ + } else + ERREXIT(cinfo, JERR_MODE_CHANGE); +} + +#endif /* D_MULTISCAN_FILES_SUPPORTED */ + + +/* + * Initialize master decompression control and select active modules. + * This is performed at the start of jpeg_start_decompress. + */ + +GLOBAL(void) +jinit_master_decompress (j_decompress_ptr cinfo) +{ + my_master_ptr master; + + master = (my_master_ptr) + (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, + SIZEOF(my_decomp_master)); + cinfo->master = (struct jpeg_decomp_master *) master; + master->pub.prepare_for_output_pass = prepare_for_output_pass; + master->pub.finish_output_pass = finish_output_pass; + + master->pub.is_dummy_pass = FALSE; + + master_selection(cinfo); +} diff --git a/jpeg/jdmerge.c b/jpeg/jdmerge.c new file mode 100644 index 0000000..3744446 --- /dev/null +++ b/jpeg/jdmerge.c @@ -0,0 +1,400 @@ +/* + * jdmerge.c + * + * Copyright (C) 1994-1996, Thomas G. Lane. + * This file is part of the Independent JPEG Group's software. + * For conditions of distribution and use, see the accompanying README file. + * + * This file contains code for merged upsampling/color conversion. + * + * This file combines functions from jdsample.c and jdcolor.c; + * read those files first to understand what's going on. + * + * When the chroma components are to be upsampled by simple replication + * (ie, box filtering), we can save some work in color conversion by + * calculating all the output pixels corresponding to a pair of chroma + * samples at one time. In the conversion equations + * R = Y + K1 * Cr + * G = Y + K2 * Cb + K3 * Cr + * B = Y + K4 * Cb + * only the Y term varies among the group of pixels corresponding to a pair + * of chroma samples, so the rest of the terms can be calculated just once. + * At typical sampling ratios, this eliminates half or three-quarters of the + * multiplications needed for color conversion. + * + * This file currently provides implementations for the following cases: + * YCbCr => RGB color conversion only. + * Sampling ratios of 2h1v or 2h2v. + * No scaling needed at upsample time. + * Corner-aligned (non-CCIR601) sampling alignment. + * Other special cases could be added, but in most applications these are + * the only common cases. (For uncommon cases we fall back on the more + * general code in jdsample.c and jdcolor.c.) + */ + +#define JPEG_INTERNALS +#include "jinclude.h" +#include "jpeglib.h" + +#ifdef UPSAMPLE_MERGING_SUPPORTED + + +/* Private subobject */ + +typedef struct { + struct jpeg_upsampler pub; /* public fields */ + + /* Pointer to routine to do actual upsampling/conversion of one row group */ + JMETHOD(void, upmethod, (j_decompress_ptr cinfo, + JSAMPIMAGE input_buf, JDIMENSION in_row_group_ctr, + JSAMPARRAY output_buf)); + + /* Private state for YCC->RGB conversion */ + int * Cr_r_tab; /* => table for Cr to R conversion */ + int * Cb_b_tab; /* => table for Cb to B conversion */ + INT32 * Cr_g_tab; /* => table for Cr to G conversion */ + INT32 * Cb_g_tab; /* => table for Cb to G conversion */ + + /* For 2:1 vertical sampling, we produce two output rows at a time. + * We need a "spare" row buffer to hold the second output row if the + * application provides just a one-row buffer; we also use the spare + * to discard the dummy last row if the image height is odd. + */ + JSAMPROW spare_row; + boolean spare_full; /* T if spare buffer is occupied */ + + JDIMENSION out_row_width; /* samples per output row */ + JDIMENSION rows_to_go; /* counts rows remaining in image */ +} my_upsampler; + +typedef my_upsampler * my_upsample_ptr; + +#define SCALEBITS 16 /* speediest right-shift on some machines */ +#define ONE_HALF ((INT32) 1 << (SCALEBITS-1)) +#define FIX(x) ((INT32) ((x) * (1L<RGB colorspace conversion. + * This is taken directly from jdcolor.c; see that file for more info. + */ + +LOCAL(void) +build_ycc_rgb_table (j_decompress_ptr cinfo) +{ + my_upsample_ptr upsample = (my_upsample_ptr) cinfo->upsample; + int i; + INT32 x; + SHIFT_TEMPS + + upsample->Cr_r_tab = (int *) + (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, + (MAXJSAMPLE+1) * SIZEOF(int)); + upsample->Cb_b_tab = (int *) + (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, + (MAXJSAMPLE+1) * SIZEOF(int)); + upsample->Cr_g_tab = (INT32 *) + (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, + (MAXJSAMPLE+1) * SIZEOF(INT32)); + upsample->Cb_g_tab = (INT32 *) + (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, + (MAXJSAMPLE+1) * SIZEOF(INT32)); + + for (i = 0, x = -CENTERJSAMPLE; i <= MAXJSAMPLE; i++, x++) { + /* i is the actual input pixel value, in the range 0..MAXJSAMPLE */ + /* The Cb or Cr value we are thinking of is x = i - CENTERJSAMPLE */ + /* Cr=>R value is nearest int to 1.40200 * x */ + upsample->Cr_r_tab[i] = (int) + RIGHT_SHIFT(FIX(1.40200) * x + ONE_HALF, SCALEBITS); + /* Cb=>B value is nearest int to 1.77200 * x */ + upsample->Cb_b_tab[i] = (int) + RIGHT_SHIFT(FIX(1.77200) * x + ONE_HALF, SCALEBITS); + /* Cr=>G value is scaled-up -0.71414 * x */ + upsample->Cr_g_tab[i] = (- FIX(0.71414)) * x; + /* Cb=>G value is scaled-up -0.34414 * x */ + /* We also add in ONE_HALF so that need not do it in inner loop */ + upsample->Cb_g_tab[i] = (- FIX(0.34414)) * x + ONE_HALF; + } +} + + +/* + * Initialize for an upsampling pass. + */ + +METHODDEF(void) +start_pass_merged_upsample (j_decompress_ptr cinfo) +{ + my_upsample_ptr upsample = (my_upsample_ptr) cinfo->upsample; + + /* Mark the spare buffer empty */ + upsample->spare_full = FALSE; + /* Initialize total-height counter for detecting bottom of image */ + upsample->rows_to_go = cinfo->output_height; +} + + +/* + * Control routine to do upsampling (and color conversion). + * + * The control routine just handles the row buffering considerations. + */ + +METHODDEF(void) +merged_2v_upsample (j_decompress_ptr cinfo, + JSAMPIMAGE input_buf, JDIMENSION *in_row_group_ctr, + JDIMENSION in_row_groups_avail, + JSAMPARRAY output_buf, JDIMENSION *out_row_ctr, + JDIMENSION out_rows_avail) +/* 2:1 vertical sampling case: may need a spare row. */ +{ + my_upsample_ptr upsample = (my_upsample_ptr) cinfo->upsample; + JSAMPROW work_ptrs[2]; + JDIMENSION num_rows; /* number of rows returned to caller */ + + if (upsample->spare_full) { + /* If we have a spare row saved from a previous cycle, just return it. */ + jcopy_sample_rows(& upsample->spare_row, 0, output_buf + *out_row_ctr, 0, + 1, upsample->out_row_width); + num_rows = 1; + upsample->spare_full = FALSE; + } else { + /* Figure number of rows to return to caller. */ + num_rows = 2; + /* Not more than the distance to the end of the image. */ + if (num_rows > upsample->rows_to_go) + num_rows = upsample->rows_to_go; + /* And not more than what the client can accept: */ + out_rows_avail -= *out_row_ctr; + if (num_rows > out_rows_avail) + num_rows = out_rows_avail; + /* Create output pointer array for upsampler. */ + work_ptrs[0] = output_buf[*out_row_ctr]; + if (num_rows > 1) { + work_ptrs[1] = output_buf[*out_row_ctr + 1]; + } else { + work_ptrs[1] = upsample->spare_row; + upsample->spare_full = TRUE; + } + /* Now do the upsampling. */ + (*upsample->upmethod) (cinfo, input_buf, *in_row_group_ctr, work_ptrs); + } + + /* Adjust counts */ + *out_row_ctr += num_rows; + upsample->rows_to_go -= num_rows; + /* When the buffer is emptied, declare this input row group consumed */ + if (! upsample->spare_full) + (*in_row_group_ctr)++; +} + + +METHODDEF(void) +merged_1v_upsample (j_decompress_ptr cinfo, + JSAMPIMAGE input_buf, JDIMENSION *in_row_group_ctr, + JDIMENSION in_row_groups_avail, + JSAMPARRAY output_buf, JDIMENSION *out_row_ctr, + JDIMENSION out_rows_avail) +/* 1:1 vertical sampling case: much easier, never need a spare row. */ +{ + my_upsample_ptr upsample = (my_upsample_ptr) cinfo->upsample; + + /* Just do the upsampling. */ + (*upsample->upmethod) (cinfo, input_buf, *in_row_group_ctr, + output_buf + *out_row_ctr); + /* Adjust counts */ + (*out_row_ctr)++; + (*in_row_group_ctr)++; +} + + +/* + * These are the routines invoked by the control routines to do + * the actual upsampling/conversion. One row group is processed per call. + * + * Note: since we may be writing directly into application-supplied buffers, + * we have to be honest about the output width; we can't assume the buffer + * has been rounded up to an even width. + */ + + +/* + * Upsample and color convert for the case of 2:1 horizontal and 1:1 vertical. + */ + +METHODDEF(void) +h2v1_merged_upsample (j_decompress_ptr cinfo, + JSAMPIMAGE input_buf, JDIMENSION in_row_group_ctr, + JSAMPARRAY output_buf) +{ + my_upsample_ptr upsample = (my_upsample_ptr) cinfo->upsample; + register int y, cred, cgreen, cblue; + int cb, cr; + register JSAMPROW outptr; + JSAMPROW inptr0, inptr1, inptr2; + JDIMENSION col; + /* copy these pointers into registers if possible */ + register JSAMPLE * range_limit = cinfo->sample_range_limit; + int * Crrtab = upsample->Cr_r_tab; + int * Cbbtab = upsample->Cb_b_tab; + INT32 * Crgtab = upsample->Cr_g_tab; + INT32 * Cbgtab = upsample->Cb_g_tab; + SHIFT_TEMPS + + inptr0 = input_buf[0][in_row_group_ctr]; + inptr1 = input_buf[1][in_row_group_ctr]; + inptr2 = input_buf[2][in_row_group_ctr]; + outptr = output_buf[0]; + /* Loop for each pair of output pixels */ + for (col = cinfo->output_width >> 1; col > 0; col--) { + /* Do the chroma part of the calculation */ + cb = GETJSAMPLE(*inptr1++); + cr = GETJSAMPLE(*inptr2++); + cred = Crrtab[cr]; + cgreen = (int) RIGHT_SHIFT(Cbgtab[cb] + Crgtab[cr], SCALEBITS); + cblue = Cbbtab[cb]; + /* Fetch 2 Y values and emit 2 pixels */ + y = GETJSAMPLE(*inptr0++); + outptr[RGB_RED] = range_limit[y + cred]; + outptr[RGB_GREEN] = range_limit[y + cgreen]; + outptr[RGB_BLUE] = range_limit[y + cblue]; + outptr += RGB_PIXELSIZE; + y = GETJSAMPLE(*inptr0++); + outptr[RGB_RED] = range_limit[y + cred]; + outptr[RGB_GREEN] = range_limit[y + cgreen]; + outptr[RGB_BLUE] = range_limit[y + cblue]; + outptr += RGB_PIXELSIZE; + } + /* If image width is odd, do the last output column separately */ + if (cinfo->output_width & 1) { + cb = GETJSAMPLE(*inptr1); + cr = GETJSAMPLE(*inptr2); + cred = Crrtab[cr]; + cgreen = (int) RIGHT_SHIFT(Cbgtab[cb] + Crgtab[cr], SCALEBITS); + cblue = Cbbtab[cb]; + y = GETJSAMPLE(*inptr0); + outptr[RGB_RED] = range_limit[y + cred]; + outptr[RGB_GREEN] = range_limit[y + cgreen]; + outptr[RGB_BLUE] = range_limit[y + cblue]; + } +} + + +/* + * Upsample and color convert for the case of 2:1 horizontal and 2:1 vertical. + */ + +METHODDEF(void) +h2v2_merged_upsample (j_decompress_ptr cinfo, + JSAMPIMAGE input_buf, JDIMENSION in_row_group_ctr, + JSAMPARRAY output_buf) +{ + my_upsample_ptr upsample = (my_upsample_ptr) cinfo->upsample; + register int y, cred, cgreen, cblue; + int cb, cr; + register JSAMPROW outptr0, outptr1; + JSAMPROW inptr00, inptr01, inptr1, inptr2; + JDIMENSION col; + /* copy these pointers into registers if possible */ + register JSAMPLE * range_limit = cinfo->sample_range_limit; + int * Crrtab = upsample->Cr_r_tab; + int * Cbbtab = upsample->Cb_b_tab; + INT32 * Crgtab = upsample->Cr_g_tab; + INT32 * Cbgtab = upsample->Cb_g_tab; + SHIFT_TEMPS + + inptr00 = input_buf[0][in_row_group_ctr*2]; + inptr01 = input_buf[0][in_row_group_ctr*2 + 1]; + inptr1 = input_buf[1][in_row_group_ctr]; + inptr2 = input_buf[2][in_row_group_ctr]; + outptr0 = output_buf[0]; + outptr1 = output_buf[1]; + /* Loop for each group of output pixels */ + for (col = cinfo->output_width >> 1; col > 0; col--) { + /* Do the chroma part of the calculation */ + cb = GETJSAMPLE(*inptr1++); + cr = GETJSAMPLE(*inptr2++); + cred = Crrtab[cr]; + cgreen = (int) RIGHT_SHIFT(Cbgtab[cb] + Crgtab[cr], SCALEBITS); + cblue = Cbbtab[cb]; + /* Fetch 4 Y values and emit 4 pixels */ + y = GETJSAMPLE(*inptr00++); + outptr0[RGB_RED] = range_limit[y + cred]; + outptr0[RGB_GREEN] = range_limit[y + cgreen]; + outptr0[RGB_BLUE] = range_limit[y + cblue]; + outptr0 += RGB_PIXELSIZE; + y = GETJSAMPLE(*inptr00++); + outptr0[RGB_RED] = range_limit[y + cred]; + outptr0[RGB_GREEN] = range_limit[y + cgreen]; + outptr0[RGB_BLUE] = range_limit[y + cblue]; + outptr0 += RGB_PIXELSIZE; + y = GETJSAMPLE(*inptr01++); + outptr1[RGB_RED] = range_limit[y + cred]; + outptr1[RGB_GREEN] = range_limit[y + cgreen]; + outptr1[RGB_BLUE] = range_limit[y + cblue]; + outptr1 += RGB_PIXELSIZE; + y = GETJSAMPLE(*inptr01++); + outptr1[RGB_RED] = range_limit[y + cred]; + outptr1[RGB_GREEN] = range_limit[y + cgreen]; + outptr1[RGB_BLUE] = range_limit[y + cblue]; + outptr1 += RGB_PIXELSIZE; + } + /* If image width is odd, do the last output column separately */ + if (cinfo->output_width & 1) { + cb = GETJSAMPLE(*inptr1); + cr = GETJSAMPLE(*inptr2); + cred = Crrtab[cr]; + cgreen = (int) RIGHT_SHIFT(Cbgtab[cb] + Crgtab[cr], SCALEBITS); + cblue = Cbbtab[cb]; + y = GETJSAMPLE(*inptr00); + outptr0[RGB_RED] = range_limit[y + cred]; + outptr0[RGB_GREEN] = range_limit[y + cgreen]; + outptr0[RGB_BLUE] = range_limit[y + cblue]; + y = GETJSAMPLE(*inptr01); + outptr1[RGB_RED] = range_limit[y + cred]; + outptr1[RGB_GREEN] = range_limit[y + cgreen]; + outptr1[RGB_BLUE] = range_limit[y + cblue]; + } +} + + +/* + * Module initialization routine for merged upsampling/color conversion. + * + * NB: this is called under the conditions determined by use_merged_upsample() + * in jdmaster.c. That routine MUST correspond to the actual capabilities + * of this module; no safety checks are made here. + */ + +GLOBAL(void) +jinit_merged_upsampler (j_decompress_ptr cinfo) +{ + my_upsample_ptr upsample; + + upsample = (my_upsample_ptr) + (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, + SIZEOF(my_upsampler)); + cinfo->upsample = (struct jpeg_upsampler *) upsample; + upsample->pub.start_pass = start_pass_merged_upsample; + upsample->pub.need_context_rows = FALSE; + + upsample->out_row_width = cinfo->output_width * cinfo->out_color_components; + + if (cinfo->max_v_samp_factor == 2) { + upsample->pub.upsample = merged_2v_upsample; + upsample->upmethod = h2v2_merged_upsample; + /* Allocate a spare row buffer */ + upsample->spare_row = (JSAMPROW) + (*cinfo->mem->alloc_large) ((j_common_ptr) cinfo, JPOOL_IMAGE, + (size_t) (upsample->out_row_width * SIZEOF(JSAMPLE))); + } else { + upsample->pub.upsample = merged_1v_upsample; + upsample->upmethod = h2v1_merged_upsample; + /* No spare row needed */ + upsample->spare_row = NULL; + } + + build_ycc_rgb_table(cinfo); +} + +#endif /* UPSAMPLE_MERGING_SUPPORTED */ diff --git a/jpeg/jdosaobj.txt b/jpeg/jdosaobj.txt new file mode 100644 index 0000000..4318362 --- /dev/null +++ b/jpeg/jdosaobj.txt @@ -0,0 +1,16 @@ +This archive contains already-assembled object files for JMEMDOSA.ASM +of the Independent JPEG Group's JPEG package. These files will be helpful +if you want to compile the IJG code for DOS, but don't have an assembler. + +These files were prepared from the 3/13/1992 version of JMEMDOSA.ASM, +which is still unchanged as of mid-1998. You can use these files with +releases 3 through 6 of the IJG code, and probably future releases too. + +To use these files, copy the proper version to JMEMDOSA.OBJ. Make sure +this file has a newer date than JMEMDOSA.ASM. Then compile the code as +usual. + +Object files included: + +JDOSAMSC.OBJ For Microsoft C version 5 or later. +JDOSABCC.OBJ For Borland C version 3.0 or later. diff --git a/jpeg/jdpostct.c b/jpeg/jdpostct.c new file mode 100644 index 0000000..571563d --- /dev/null +++ b/jpeg/jdpostct.c @@ -0,0 +1,290 @@ +/* + * jdpostct.c + * + * Copyright (C) 1994-1996, Thomas G. Lane. + * This file is part of the Independent JPEG Group's software. + * For conditions of distribution and use, see the accompanying README file. + * + * This file contains the decompression postprocessing controller. + * This controller manages the upsampling, color conversion, and color + * quantization/reduction steps; specifically, it controls the buffering + * between upsample/color conversion and color quantization/reduction. + * + * If no color quantization/reduction is required, then this module has no + * work to do, and it just hands off to the upsample/color conversion code. + * An integrated upsample/convert/quantize process would replace this module + * entirely. + */ + +#define JPEG_INTERNALS +#include "jinclude.h" +#include "jpeglib.h" + + +/* Private buffer controller object */ + +typedef struct { + struct jpeg_d_post_controller pub; /* public fields */ + + /* Color quantization source buffer: this holds output data from + * the upsample/color conversion step to be passed to the quantizer. + * For two-pass color quantization, we need a full-image buffer; + * for one-pass operation, a strip buffer is sufficient. + */ + jvirt_sarray_ptr whole_image; /* virtual array, or NULL if one-pass */ + JSAMPARRAY buffer; /* strip buffer, or current strip of virtual */ + JDIMENSION strip_height; /* buffer size in rows */ + /* for two-pass mode only: */ + JDIMENSION starting_row; /* row # of first row in current strip */ + JDIMENSION next_row; /* index of next row to fill/empty in strip */ +} my_post_controller; + +typedef my_post_controller * my_post_ptr; + + +/* Forward declarations */ +METHODDEF(void) post_process_1pass + JPP((j_decompress_ptr cinfo, + JSAMPIMAGE input_buf, JDIMENSION *in_row_group_ctr, + JDIMENSION in_row_groups_avail, + JSAMPARRAY output_buf, JDIMENSION *out_row_ctr, + JDIMENSION out_rows_avail)); +#ifdef QUANT_2PASS_SUPPORTED +METHODDEF(void) post_process_prepass + JPP((j_decompress_ptr cinfo, + JSAMPIMAGE input_buf, JDIMENSION *in_row_group_ctr, + JDIMENSION in_row_groups_avail, + JSAMPARRAY output_buf, JDIMENSION *out_row_ctr, + JDIMENSION out_rows_avail)); +METHODDEF(void) post_process_2pass + JPP((j_decompress_ptr cinfo, + JSAMPIMAGE input_buf, JDIMENSION *in_row_group_ctr, + JDIMENSION in_row_groups_avail, + JSAMPARRAY output_buf, JDIMENSION *out_row_ctr, + JDIMENSION out_rows_avail)); +#endif + + +/* + * Initialize for a processing pass. + */ + +METHODDEF(void) +start_pass_dpost (j_decompress_ptr cinfo, J_BUF_MODE pass_mode) +{ + my_post_ptr post = (my_post_ptr) cinfo->post; + + switch (pass_mode) { + case JBUF_PASS_THRU: + if (cinfo->quantize_colors) { + /* Single-pass processing with color quantization. */ + post->pub.post_process_data = post_process_1pass; + /* We could be doing buffered-image output before starting a 2-pass + * color quantization; in that case, jinit_d_post_controller did not + * allocate a strip buffer. Use the virtual-array buffer as workspace. + */ + if (post->buffer == NULL) { + post->buffer = (*cinfo->mem->access_virt_sarray) + ((j_common_ptr) cinfo, post->whole_image, + (JDIMENSION) 0, post->strip_height, TRUE); + } + } else { + /* For single-pass processing without color quantization, + * I have no work to do; just call the upsampler directly. + */ + post->pub.post_process_data = cinfo->upsample->upsample; + } + break; +#ifdef QUANT_2PASS_SUPPORTED + case JBUF_SAVE_AND_PASS: + /* First pass of 2-pass quantization */ + if (post->whole_image == NULL) + ERREXIT(cinfo, JERR_BAD_BUFFER_MODE); + post->pub.post_process_data = post_process_prepass; + break; + case JBUF_CRANK_DEST: + /* Second pass of 2-pass quantization */ + if (post->whole_image == NULL) + ERREXIT(cinfo, JERR_BAD_BUFFER_MODE); + post->pub.post_process_data = post_process_2pass; + break; +#endif /* QUANT_2PASS_SUPPORTED */ + default: + ERREXIT(cinfo, JERR_BAD_BUFFER_MODE); + break; + } + post->starting_row = post->next_row = 0; +} + + +/* + * Process some data in the one-pass (strip buffer) case. + * This is used for color precision reduction as well as one-pass quantization. + */ + +METHODDEF(void) +post_process_1pass (j_decompress_ptr cinfo, + JSAMPIMAGE input_buf, JDIMENSION *in_row_group_ctr, + JDIMENSION in_row_groups_avail, + JSAMPARRAY output_buf, JDIMENSION *out_row_ctr, + JDIMENSION out_rows_avail) +{ + my_post_ptr post = (my_post_ptr) cinfo->post; + JDIMENSION num_rows, max_rows; + + /* Fill the buffer, but not more than what we can dump out in one go. */ + /* Note we rely on the upsampler to detect bottom of image. */ + max_rows = out_rows_avail - *out_row_ctr; + if (max_rows > post->strip_height) + max_rows = post->strip_height; + num_rows = 0; + (*cinfo->upsample->upsample) (cinfo, + input_buf, in_row_group_ctr, in_row_groups_avail, + post->buffer, &num_rows, max_rows); + /* Quantize and emit data. */ + (*cinfo->cquantize->color_quantize) (cinfo, + post->buffer, output_buf + *out_row_ctr, (int) num_rows); + *out_row_ctr += num_rows; +} + + +#ifdef QUANT_2PASS_SUPPORTED + +/* + * Process some data in the first pass of 2-pass quantization. + */ + +METHODDEF(void) +post_process_prepass (j_decompress_ptr cinfo, + JSAMPIMAGE input_buf, JDIMENSION *in_row_group_ctr, + JDIMENSION in_row_groups_avail, + JSAMPARRAY output_buf, JDIMENSION *out_row_ctr, + JDIMENSION out_rows_avail) +{ + my_post_ptr post = (my_post_ptr) cinfo->post; + JDIMENSION old_next_row, num_rows; + + /* Reposition virtual buffer if at start of strip. */ + if (post->next_row == 0) { + post->buffer = (*cinfo->mem->access_virt_sarray) + ((j_common_ptr) cinfo, post->whole_image, + post->starting_row, post->strip_height, TRUE); + } + + /* Upsample some data (up to a strip height's worth). */ + old_next_row = post->next_row; + (*cinfo->upsample->upsample) (cinfo, + input_buf, in_row_group_ctr, in_row_groups_avail, + post->buffer, &post->next_row, post->strip_height); + + /* Allow quantizer to scan new data. No data is emitted, */ + /* but we advance out_row_ctr so outer loop can tell when we're done. */ + if (post->next_row > old_next_row) { + num_rows = post->next_row - old_next_row; + (*cinfo->cquantize->color_quantize) (cinfo, post->buffer + old_next_row, + (JSAMPARRAY) NULL, (int) num_rows); + *out_row_ctr += num_rows; + } + + /* Advance if we filled the strip. */ + if (post->next_row >= post->strip_height) { + post->starting_row += post->strip_height; + post->next_row = 0; + } +} + + +/* + * Process some data in the second pass of 2-pass quantization. + */ + +METHODDEF(void) +post_process_2pass (j_decompress_ptr cinfo, + JSAMPIMAGE input_buf, JDIMENSION *in_row_group_ctr, + JDIMENSION in_row_groups_avail, + JSAMPARRAY output_buf, JDIMENSION *out_row_ctr, + JDIMENSION out_rows_avail) +{ + my_post_ptr post = (my_post_ptr) cinfo->post; + JDIMENSION num_rows, max_rows; + + /* Reposition virtual buffer if at start of strip. */ + if (post->next_row == 0) { + post->buffer = (*cinfo->mem->access_virt_sarray) + ((j_common_ptr) cinfo, post->whole_image, + post->starting_row, post->strip_height, FALSE); + } + + /* Determine number of rows to emit. */ + num_rows = post->strip_height - post->next_row; /* available in strip */ + max_rows = out_rows_avail - *out_row_ctr; /* available in output area */ + if (num_rows > max_rows) + num_rows = max_rows; + /* We have to check bottom of image here, can't depend on upsampler. */ + max_rows = cinfo->output_height - post->starting_row; + if (num_rows > max_rows) + num_rows = max_rows; + + /* Quantize and emit data. */ + (*cinfo->cquantize->color_quantize) (cinfo, + post->buffer + post->next_row, output_buf + *out_row_ctr, + (int) num_rows); + *out_row_ctr += num_rows; + + /* Advance if we filled the strip. */ + post->next_row += num_rows; + if (post->next_row >= post->strip_height) { + post->starting_row += post->strip_height; + post->next_row = 0; + } +} + +#endif /* QUANT_2PASS_SUPPORTED */ + + +/* + * Initialize postprocessing controller. + */ + +GLOBAL(void) +jinit_d_post_controller (j_decompress_ptr cinfo, boolean need_full_buffer) +{ + my_post_ptr post; + + post = (my_post_ptr) + (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, + SIZEOF(my_post_controller)); + cinfo->post = (struct jpeg_d_post_controller *) post; + post->pub.start_pass = start_pass_dpost; + post->whole_image = NULL; /* flag for no virtual arrays */ + post->buffer = NULL; /* flag for no strip buffer */ + + /* Create the quantization buffer, if needed */ + if (cinfo->quantize_colors) { + /* The buffer strip height is max_v_samp_factor, which is typically + * an efficient number of rows for upsampling to return. + * (In the presence of output rescaling, we might want to be smarter?) + */ + post->strip_height = (JDIMENSION) cinfo->max_v_samp_factor; + if (need_full_buffer) { + /* Two-pass color quantization: need full-image storage. */ + /* We round up the number of rows to a multiple of the strip height. */ +#ifdef QUANT_2PASS_SUPPORTED + post->whole_image = (*cinfo->mem->request_virt_sarray) + ((j_common_ptr) cinfo, JPOOL_IMAGE, FALSE, + cinfo->output_width * cinfo->out_color_components, + (JDIMENSION) jround_up((long) cinfo->output_height, + (long) post->strip_height), + post->strip_height); +#else + ERREXIT(cinfo, JERR_BAD_BUFFER_MODE); +#endif /* QUANT_2PASS_SUPPORTED */ + } else { + /* One-pass color quantization: just make a strip buffer. */ + post->buffer = (*cinfo->mem->alloc_sarray) + ((j_common_ptr) cinfo, JPOOL_IMAGE, + cinfo->output_width * cinfo->out_color_components, + post->strip_height); + } + } +} diff --git a/jpeg/jdsample.c b/jpeg/jdsample.c new file mode 100644 index 0000000..7bc8885 --- /dev/null +++ b/jpeg/jdsample.c @@ -0,0 +1,361 @@ +/* + * jdsample.c + * + * Copyright (C) 1991-1996, Thomas G. Lane. + * Modified 2002-2008 by Guido Vollbeding. + * This file is part of the Independent JPEG Group's software. + * For conditions of distribution and use, see the accompanying README file. + * + * This file contains upsampling routines. + * + * Upsampling input data is counted in "row groups". A row group + * is defined to be (v_samp_factor * DCT_v_scaled_size / min_DCT_v_scaled_size) + * sample rows of each component. Upsampling will normally produce + * max_v_samp_factor pixel rows from each row group (but this could vary + * if the upsampler is applying a scale factor of its own). + * + * An excellent reference for image resampling is + * Digital Image Warping, George Wolberg, 1990. + * Pub. by IEEE Computer Society Press, Los Alamitos, CA. ISBN 0-8186-8944-7. + */ + +#define JPEG_INTERNALS +#include "jinclude.h" +#include "jpeglib.h" + + +/* Pointer to routine to upsample a single component */ +typedef JMETHOD(void, upsample1_ptr, + (j_decompress_ptr cinfo, jpeg_component_info * compptr, + JSAMPARRAY input_data, JSAMPARRAY * output_data_ptr)); + +/* Private subobject */ + +typedef struct { + struct jpeg_upsampler pub; /* public fields */ + + /* Color conversion buffer. When using separate upsampling and color + * conversion steps, this buffer holds one upsampled row group until it + * has been color converted and output. + * Note: we do not allocate any storage for component(s) which are full-size, + * ie do not need rescaling. The corresponding entry of color_buf[] is + * simply set to point to the input data array, thereby avoiding copying. + */ + JSAMPARRAY color_buf[MAX_COMPONENTS]; + + /* Per-component upsampling method pointers */ + upsample1_ptr methods[MAX_COMPONENTS]; + + int next_row_out; /* counts rows emitted from color_buf */ + JDIMENSION rows_to_go; /* counts rows remaining in image */ + + /* Height of an input row group for each component. */ + int rowgroup_height[MAX_COMPONENTS]; + + /* These arrays save pixel expansion factors so that int_expand need not + * recompute them each time. They are unused for other upsampling methods. + */ + UINT8 h_expand[MAX_COMPONENTS]; + UINT8 v_expand[MAX_COMPONENTS]; +} my_upsampler; + +typedef my_upsampler * my_upsample_ptr; + + +/* + * Initialize for an upsampling pass. + */ + +METHODDEF(void) +start_pass_upsample (j_decompress_ptr cinfo) +{ + my_upsample_ptr upsample = (my_upsample_ptr) cinfo->upsample; + + /* Mark the conversion buffer empty */ + upsample->next_row_out = cinfo->max_v_samp_factor; + /* Initialize total-height counter for detecting bottom of image */ + upsample->rows_to_go = cinfo->output_height; +} + + +/* + * Control routine to do upsampling (and color conversion). + * + * In this version we upsample each component independently. + * We upsample one row group into the conversion buffer, then apply + * color conversion a row at a time. + */ + +METHODDEF(void) +sep_upsample (j_decompress_ptr cinfo, + JSAMPIMAGE input_buf, JDIMENSION *in_row_group_ctr, + JDIMENSION in_row_groups_avail, + JSAMPARRAY output_buf, JDIMENSION *out_row_ctr, + JDIMENSION out_rows_avail) +{ + my_upsample_ptr upsample = (my_upsample_ptr) cinfo->upsample; + int ci; + jpeg_component_info * compptr; + JDIMENSION num_rows; + + /* Fill the conversion buffer, if it's empty */ + if (upsample->next_row_out >= cinfo->max_v_samp_factor) { + for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components; + ci++, compptr++) { + /* Invoke per-component upsample method. Notice we pass a POINTER + * to color_buf[ci], so that fullsize_upsample can change it. + */ + (*upsample->methods[ci]) (cinfo, compptr, + input_buf[ci] + (*in_row_group_ctr * upsample->rowgroup_height[ci]), + upsample->color_buf + ci); + } + upsample->next_row_out = 0; + } + + /* Color-convert and emit rows */ + + /* How many we have in the buffer: */ + num_rows = (JDIMENSION) (cinfo->max_v_samp_factor - upsample->next_row_out); + /* Not more than the distance to the end of the image. Need this test + * in case the image height is not a multiple of max_v_samp_factor: + */ + if (num_rows > upsample->rows_to_go) + num_rows = upsample->rows_to_go; + /* And not more than what the client can accept: */ + out_rows_avail -= *out_row_ctr; + if (num_rows > out_rows_avail) + num_rows = out_rows_avail; + + (*cinfo->cconvert->color_convert) (cinfo, upsample->color_buf, + (JDIMENSION) upsample->next_row_out, + output_buf + *out_row_ctr, + (int) num_rows); + + /* Adjust counts */ + *out_row_ctr += num_rows; + upsample->rows_to_go -= num_rows; + upsample->next_row_out += num_rows; + /* When the buffer is emptied, declare this input row group consumed */ + if (upsample->next_row_out >= cinfo->max_v_samp_factor) + (*in_row_group_ctr)++; +} + + +/* + * These are the routines invoked by sep_upsample to upsample pixel values + * of a single component. One row group is processed per call. + */ + + +/* + * For full-size components, we just make color_buf[ci] point at the + * input buffer, and thus avoid copying any data. Note that this is + * safe only because sep_upsample doesn't declare the input row group + * "consumed" until we are done color converting and emitting it. + */ + +METHODDEF(void) +fullsize_upsample (j_decompress_ptr cinfo, jpeg_component_info * compptr, + JSAMPARRAY input_data, JSAMPARRAY * output_data_ptr) +{ + *output_data_ptr = input_data; +} + + +/* + * This is a no-op version used for "uninteresting" components. + * These components will not be referenced by color conversion. + */ + +METHODDEF(void) +noop_upsample (j_decompress_ptr cinfo, jpeg_component_info * compptr, + JSAMPARRAY input_data, JSAMPARRAY * output_data_ptr) +{ + *output_data_ptr = NULL; /* safety check */ +} + + +/* + * This version handles any integral sampling ratios. + * This is not used for typical JPEG files, so it need not be fast. + * Nor, for that matter, is it particularly accurate: the algorithm is + * simple replication of the input pixel onto the corresponding output + * pixels. The hi-falutin sampling literature refers to this as a + * "box filter". A box filter tends to introduce visible artifacts, + * so if you are actually going to use 3:1 or 4:1 sampling ratios + * you would be well advised to improve this code. + */ + +METHODDEF(void) +int_upsample (j_decompress_ptr cinfo, jpeg_component_info * compptr, + JSAMPARRAY input_data, JSAMPARRAY * output_data_ptr) +{ + my_upsample_ptr upsample = (my_upsample_ptr) cinfo->upsample; + JSAMPARRAY output_data = *output_data_ptr; + register JSAMPROW inptr, outptr; + register JSAMPLE invalue; + register int h; + JSAMPROW outend; + int h_expand, v_expand; + int inrow, outrow; + + h_expand = upsample->h_expand[compptr->component_index]; + v_expand = upsample->v_expand[compptr->component_index]; + + inrow = outrow = 0; + while (outrow < cinfo->max_v_samp_factor) { + /* Generate one output row with proper horizontal expansion */ + inptr = input_data[inrow]; + outptr = output_data[outrow]; + outend = outptr + cinfo->output_width; + while (outptr < outend) { + invalue = *inptr++; /* don't need GETJSAMPLE() here */ + for (h = h_expand; h > 0; h--) { + *outptr++ = invalue; + } + } + /* Generate any additional output rows by duplicating the first one */ + if (v_expand > 1) { + jcopy_sample_rows(output_data, outrow, output_data, outrow+1, + v_expand-1, cinfo->output_width); + } + inrow++; + outrow += v_expand; + } +} + + +/* + * Fast processing for the common case of 2:1 horizontal and 1:1 vertical. + * It's still a box filter. + */ + +METHODDEF(void) +h2v1_upsample (j_decompress_ptr cinfo, jpeg_component_info * compptr, + JSAMPARRAY input_data, JSAMPARRAY * output_data_ptr) +{ + JSAMPARRAY output_data = *output_data_ptr; + register JSAMPROW inptr, outptr; + register JSAMPLE invalue; + JSAMPROW outend; + int outrow; + + for (outrow = 0; outrow < cinfo->max_v_samp_factor; outrow++) { + inptr = input_data[outrow]; + outptr = output_data[outrow]; + outend = outptr + cinfo->output_width; + while (outptr < outend) { + invalue = *inptr++; /* don't need GETJSAMPLE() here */ + *outptr++ = invalue; + *outptr++ = invalue; + } + } +} + + +/* + * Fast processing for the common case of 2:1 horizontal and 2:1 vertical. + * It's still a box filter. + */ + +METHODDEF(void) +h2v2_upsample (j_decompress_ptr cinfo, jpeg_component_info * compptr, + JSAMPARRAY input_data, JSAMPARRAY * output_data_ptr) +{ + JSAMPARRAY output_data = *output_data_ptr; + register JSAMPROW inptr, outptr; + register JSAMPLE invalue; + JSAMPROW outend; + int inrow, outrow; + + inrow = outrow = 0; + while (outrow < cinfo->max_v_samp_factor) { + inptr = input_data[inrow]; + outptr = output_data[outrow]; + outend = outptr + cinfo->output_width; + while (outptr < outend) { + invalue = *inptr++; /* don't need GETJSAMPLE() here */ + *outptr++ = invalue; + *outptr++ = invalue; + } + jcopy_sample_rows(output_data, outrow, output_data, outrow+1, + 1, cinfo->output_width); + inrow++; + outrow += 2; + } +} + + +/* + * Module initialization routine for upsampling. + */ + +GLOBAL(void) +jinit_upsampler (j_decompress_ptr cinfo) +{ + my_upsample_ptr upsample; + int ci; + jpeg_component_info * compptr; + boolean need_buffer; + int h_in_group, v_in_group, h_out_group, v_out_group; + + upsample = (my_upsample_ptr) + (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, + SIZEOF(my_upsampler)); + cinfo->upsample = (struct jpeg_upsampler *) upsample; + upsample->pub.start_pass = start_pass_upsample; + upsample->pub.upsample = sep_upsample; + upsample->pub.need_context_rows = FALSE; /* until we find out differently */ + + if (cinfo->CCIR601_sampling) /* this isn't supported */ + ERREXIT(cinfo, JERR_CCIR601_NOTIMPL); + + /* Verify we can handle the sampling factors, select per-component methods, + * and create storage as needed. + */ + for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components; + ci++, compptr++) { + /* Compute size of an "input group" after IDCT scaling. This many samples + * are to be converted to max_h_samp_factor * max_v_samp_factor pixels. + */ + h_in_group = (compptr->h_samp_factor * compptr->DCT_h_scaled_size) / + cinfo->min_DCT_h_scaled_size; + v_in_group = (compptr->v_samp_factor * compptr->DCT_v_scaled_size) / + cinfo->min_DCT_v_scaled_size; + h_out_group = cinfo->max_h_samp_factor; + v_out_group = cinfo->max_v_samp_factor; + upsample->rowgroup_height[ci] = v_in_group; /* save for use later */ + need_buffer = TRUE; + if (! compptr->component_needed) { + /* Don't bother to upsample an uninteresting component. */ + upsample->methods[ci] = noop_upsample; + need_buffer = FALSE; + } else if (h_in_group == h_out_group && v_in_group == v_out_group) { + /* Fullsize components can be processed without any work. */ + upsample->methods[ci] = fullsize_upsample; + need_buffer = FALSE; + } else if (h_in_group * 2 == h_out_group && + v_in_group == v_out_group) { + /* Special case for 2h1v upsampling */ + upsample->methods[ci] = h2v1_upsample; + } else if (h_in_group * 2 == h_out_group && + v_in_group * 2 == v_out_group) { + /* Special case for 2h2v upsampling */ + upsample->methods[ci] = h2v2_upsample; + } else if ((h_out_group % h_in_group) == 0 && + (v_out_group % v_in_group) == 0) { + /* Generic integral-factors upsampling method */ + upsample->methods[ci] = int_upsample; + upsample->h_expand[ci] = (UINT8) (h_out_group / h_in_group); + upsample->v_expand[ci] = (UINT8) (v_out_group / v_in_group); + } else + ERREXIT(cinfo, JERR_FRACT_SAMPLE_NOTIMPL); + if (need_buffer) { + upsample->color_buf[ci] = (*cinfo->mem->alloc_sarray) + ((j_common_ptr) cinfo, JPOOL_IMAGE, + (JDIMENSION) jround_up((long) cinfo->output_width, + (long) cinfo->max_h_samp_factor), + (JDIMENSION) cinfo->max_v_samp_factor); + } + } +} diff --git a/jpeg/jdtrans.c b/jpeg/jdtrans.c new file mode 100644 index 0000000..22dd47f --- /dev/null +++ b/jpeg/jdtrans.c @@ -0,0 +1,140 @@ +/* + * jdtrans.c + * + * Copyright (C) 1995-1997, Thomas G. Lane. + * Modified 2000-2009 by Guido Vollbeding. + * This file is part of the Independent JPEG Group's software. + * For conditions of distribution and use, see the accompanying README file. + * + * This file contains library routines for transcoding decompression, + * that is, reading raw DCT coefficient arrays from an input JPEG file. + * The routines in jdapimin.c will also be needed by a transcoder. + */ + +#define JPEG_INTERNALS +#include "jinclude.h" +#include "jpeglib.h" + + +/* Forward declarations */ +LOCAL(void) transdecode_master_selection JPP((j_decompress_ptr cinfo)); + + +/* + * Read the coefficient arrays from a JPEG file. + * jpeg_read_header must be completed before calling this. + * + * The entire image is read into a set of virtual coefficient-block arrays, + * one per component. The return value is a pointer to the array of + * virtual-array descriptors. These can be manipulated directly via the + * JPEG memory manager, or handed off to jpeg_write_coefficients(). + * To release the memory occupied by the virtual arrays, call + * jpeg_finish_decompress() when done with the data. + * + * An alternative usage is to simply obtain access to the coefficient arrays + * during a buffered-image-mode decompression operation. This is allowed + * after any jpeg_finish_output() call. The arrays can be accessed until + * jpeg_finish_decompress() is called. (Note that any call to the library + * may reposition the arrays, so don't rely on access_virt_barray() results + * to stay valid across library calls.) + * + * Returns NULL if suspended. This case need be checked only if + * a suspending data source is used. + */ + +GLOBAL(jvirt_barray_ptr *) +jpeg_read_coefficients (j_decompress_ptr cinfo) +{ + if (cinfo->global_state == DSTATE_READY) { + /* First call: initialize active modules */ + transdecode_master_selection(cinfo); + cinfo->global_state = DSTATE_RDCOEFS; + } + if (cinfo->global_state == DSTATE_RDCOEFS) { + /* Absorb whole file into the coef buffer */ + for (;;) { + int retcode; + /* Call progress monitor hook if present */ + if (cinfo->progress != NULL) + (*cinfo->progress->progress_monitor) ((j_common_ptr) cinfo); + /* Absorb some more input */ + retcode = (*cinfo->inputctl->consume_input) (cinfo); + if (retcode == JPEG_SUSPENDED) + return NULL; + if (retcode == JPEG_REACHED_EOI) + break; + /* Advance progress counter if appropriate */ + if (cinfo->progress != NULL && + (retcode == JPEG_ROW_COMPLETED || retcode == JPEG_REACHED_SOS)) { + if (++cinfo->progress->pass_counter >= cinfo->progress->pass_limit) { + /* startup underestimated number of scans; ratchet up one scan */ + cinfo->progress->pass_limit += (long) cinfo->total_iMCU_rows; + } + } + } + /* Set state so that jpeg_finish_decompress does the right thing */ + cinfo->global_state = DSTATE_STOPPING; + } + /* At this point we should be in state DSTATE_STOPPING if being used + * standalone, or in state DSTATE_BUFIMAGE if being invoked to get access + * to the coefficients during a full buffered-image-mode decompression. + */ + if ((cinfo->global_state == DSTATE_STOPPING || + cinfo->global_state == DSTATE_BUFIMAGE) && cinfo->buffered_image) { + return cinfo->coef->coef_arrays; + } + /* Oops, improper usage */ + ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state); + return NULL; /* keep compiler happy */ +} + + +/* + * Master selection of decompression modules for transcoding. + * This substitutes for jdmaster.c's initialization of the full decompressor. + */ + +LOCAL(void) +transdecode_master_selection (j_decompress_ptr cinfo) +{ + /* This is effectively a buffered-image operation. */ + cinfo->buffered_image = TRUE; + + /* Compute output image dimensions and related values. */ + jpeg_core_output_dimensions(cinfo); + + /* Entropy decoding: either Huffman or arithmetic coding. */ + if (cinfo->arith_code) + jinit_arith_decoder(cinfo); + else { + jinit_huff_decoder(cinfo); + } + + /* Always get a full-image coefficient buffer. */ + jinit_d_coef_controller(cinfo, TRUE); + + /* We can now tell the memory manager to allocate virtual arrays. */ + (*cinfo->mem->realize_virt_arrays) ((j_common_ptr) cinfo); + + /* Initialize input side of decompressor to consume first scan. */ + (*cinfo->inputctl->start_input_pass) (cinfo); + + /* Initialize progress monitoring. */ + if (cinfo->progress != NULL) { + int nscans; + /* Estimate number of scans to set pass_limit. */ + if (cinfo->progressive_mode) { + /* Arbitrarily estimate 2 interleaved DC scans + 3 AC scans/component. */ + nscans = 2 + 3 * cinfo->num_components; + } else if (cinfo->inputctl->has_multiple_scans) { + /* For a nonprogressive multiscan file, estimate 1 scan per component. */ + nscans = cinfo->num_components; + } else { + nscans = 1; + } + cinfo->progress->pass_counter = 0L; + cinfo->progress->pass_limit = (long) cinfo->total_iMCU_rows * nscans; + cinfo->progress->completed_passes = 0; + cinfo->progress->total_passes = 1; + } +} diff --git a/jpeg/jerror.c b/jpeg/jerror.c new file mode 100644 index 0000000..3da7be8 --- /dev/null +++ b/jpeg/jerror.c @@ -0,0 +1,252 @@ +/* + * jerror.c + * + * Copyright (C) 1991-1998, Thomas G. Lane. + * This file is part of the Independent JPEG Group's software. + * For conditions of distribution and use, see the accompanying README file. + * + * This file contains simple error-reporting and trace-message routines. + * These are suitable for Unix-like systems and others where writing to + * stderr is the right thing to do. Many applications will want to replace + * some or all of these routines. + * + * If you define USE_WINDOWS_MESSAGEBOX in jconfig.h or in the makefile, + * you get a Windows-specific hack to display error messages in a dialog box. + * It ain't much, but it beats dropping error messages into the bit bucket, + * which is what happens to output to stderr under most Windows C compilers. + * + * These routines are used by both the compression and decompression code. + */ + +/* this is not a core library module, so it doesn't define JPEG_INTERNALS */ +#include "jinclude.h" +#include "jpeglib.h" +#include "jversion.h" +#include "jerror.h" + +#ifdef USE_WINDOWS_MESSAGEBOX +#include +#endif + +#ifndef EXIT_FAILURE /* define exit() codes if not provided */ +#define EXIT_FAILURE 1 +#endif + + +/* + * Create the message string table. + * We do this from the master message list in jerror.h by re-reading + * jerror.h with a suitable definition for macro JMESSAGE. + * The message table is made an external symbol just in case any applications + * want to refer to it directly. + */ + +#ifdef NEED_SHORT_EXTERNAL_NAMES +#define jpeg_std_message_table jMsgTable +#endif + +#define JMESSAGE(code,string) string , + +const char * const jpeg_std_message_table[] = { +#include "jerror.h" + NULL +}; + + +/* + * Error exit handler: must not return to caller. + * + * Applications may override this if they want to get control back after + * an error. Typically one would longjmp somewhere instead of exiting. + * The setjmp buffer can be made a private field within an expanded error + * handler object. Note that the info needed to generate an error message + * is stored in the error object, so you can generate the message now or + * later, at your convenience. + * You should make sure that the JPEG object is cleaned up (with jpeg_abort + * or jpeg_destroy) at some point. + */ + +METHODDEF(void) +error_exit (j_common_ptr cinfo) +{ + /* Always display the message */ + (*cinfo->err->output_message) (cinfo); + + /* Let the memory manager delete any temp files before we die */ + jpeg_destroy(cinfo); + + exit(EXIT_FAILURE); +} + + +/* + * Actual output of an error or trace message. + * Applications may override this method to send JPEG messages somewhere + * other than stderr. + * + * On Windows, printing to stderr is generally completely useless, + * so we provide optional code to produce an error-dialog popup. + * Most Windows applications will still prefer to override this routine, + * but if they don't, it'll do something at least marginally useful. + * + * NOTE: to use the library in an environment that doesn't support the + * C stdio library, you may have to delete the call to fprintf() entirely, + * not just not use this routine. + */ + +METHODDEF(void) +output_message (j_common_ptr cinfo) +{ + char buffer[JMSG_LENGTH_MAX]; + + /* Create the message */ + (*cinfo->err->format_message) (cinfo, buffer); + +#ifdef USE_WINDOWS_MESSAGEBOX + /* Display it in a message dialog box */ + MessageBox(GetActiveWindow(), buffer, "JPEG Library Error", + MB_OK | MB_ICONERROR); +#else + /* Send it to stderr, adding a newline */ + fprintf(stderr, "%s\n", buffer); +#endif +} + + +/* + * Decide whether to emit a trace or warning message. + * msg_level is one of: + * -1: recoverable corrupt-data warning, may want to abort. + * 0: important advisory messages (always display to user). + * 1: first level of tracing detail. + * 2,3,...: successively more detailed tracing messages. + * An application might override this method if it wanted to abort on warnings + * or change the policy about which messages to display. + */ + +METHODDEF(void) +emit_message (j_common_ptr cinfo, int msg_level) +{ + struct jpeg_error_mgr * err = cinfo->err; + + if (msg_level < 0) { + /* It's a warning message. Since corrupt files may generate many warnings, + * the policy implemented here is to show only the first warning, + * unless trace_level >= 3. + */ + if (err->num_warnings == 0 || err->trace_level >= 3) + (*err->output_message) (cinfo); + /* Always count warnings in num_warnings. */ + err->num_warnings++; + } else { + /* It's a trace message. Show it if trace_level >= msg_level. */ + if (err->trace_level >= msg_level) + (*err->output_message) (cinfo); + } +} + + +/* + * Format a message string for the most recent JPEG error or message. + * The message is stored into buffer, which should be at least JMSG_LENGTH_MAX + * characters. Note that no '\n' character is added to the string. + * Few applications should need to override this method. + */ + +METHODDEF(void) +format_message (j_common_ptr cinfo, char * buffer) +{ + struct jpeg_error_mgr * err = cinfo->err; + int msg_code = err->msg_code; + const char * msgtext = NULL; + const char * msgptr; + char ch; + boolean isstring; + + /* Look up message string in proper table */ + if (msg_code > 0 && msg_code <= err->last_jpeg_message) { + msgtext = err->jpeg_message_table[msg_code]; + } else if (err->addon_message_table != NULL && + msg_code >= err->first_addon_message && + msg_code <= err->last_addon_message) { + msgtext = err->addon_message_table[msg_code - err->first_addon_message]; + } + + /* Defend against bogus message number */ + if (msgtext == NULL) { + err->msg_parm.i[0] = msg_code; + msgtext = err->jpeg_message_table[0]; + } + + /* Check for string parameter, as indicated by %s in the message text */ + isstring = FALSE; + msgptr = msgtext; + while ((ch = *msgptr++) != '\0') { + if (ch == '%') { + if (*msgptr == 's') isstring = TRUE; + break; + } + } + + /* Format the message into the passed buffer */ + if (isstring) + sprintf(buffer, msgtext, err->msg_parm.s); + else + sprintf(buffer, msgtext, + err->msg_parm.i[0], err->msg_parm.i[1], + err->msg_parm.i[2], err->msg_parm.i[3], + err->msg_parm.i[4], err->msg_parm.i[5], + err->msg_parm.i[6], err->msg_parm.i[7]); +} + + +/* + * Reset error state variables at start of a new image. + * This is called during compression startup to reset trace/error + * processing to default state, without losing any application-specific + * method pointers. An application might possibly want to override + * this method if it has additional error processing state. + */ + +METHODDEF(void) +reset_error_mgr (j_common_ptr cinfo) +{ + cinfo->err->num_warnings = 0; + /* trace_level is not reset since it is an application-supplied parameter */ + cinfo->err->msg_code = 0; /* may be useful as a flag for "no error" */ +} + + +/* + * Fill in the standard error-handling methods in a jpeg_error_mgr object. + * Typical call is: + * struct jpeg_compress_struct cinfo; + * struct jpeg_error_mgr err; + * + * cinfo.err = jpeg_std_error(&err); + * after which the application may override some of the methods. + */ + +GLOBAL(struct jpeg_error_mgr *) +jpeg_std_error (struct jpeg_error_mgr * err) +{ + err->error_exit = error_exit; + err->emit_message = emit_message; + err->output_message = output_message; + err->format_message = format_message; + err->reset_error_mgr = reset_error_mgr; + + err->trace_level = 0; /* default = no tracing */ + err->num_warnings = 0; /* no warnings emitted yet */ + err->msg_code = 0; /* may be useful as a flag for "no error" */ + + /* Initialize message table pointers */ + err->jpeg_message_table = jpeg_std_message_table; + err->last_jpeg_message = (int) JMSG_LASTMSGCODE - 1; + + err->addon_message_table = NULL; + err->first_addon_message = 0; /* for safety */ + err->last_addon_message = 0; + + return err; +} diff --git a/jpeg/jerror.h b/jpeg/jerror.h new file mode 100644 index 0000000..1cfb2b1 --- /dev/null +++ b/jpeg/jerror.h @@ -0,0 +1,304 @@ +/* + * jerror.h + * + * Copyright (C) 1994-1997, Thomas G. Lane. + * Modified 1997-2009 by Guido Vollbeding. + * This file is part of the Independent JPEG Group's software. + * For conditions of distribution and use, see the accompanying README file. + * + * This file defines the error and message codes for the JPEG library. + * Edit this file to add new codes, or to translate the message strings to + * some other language. + * A set of error-reporting macros are defined too. Some applications using + * the JPEG library may wish to include this file to get the error codes + * and/or the macros. + */ + +/* + * To define the enum list of message codes, include this file without + * defining macro JMESSAGE. To create a message string table, include it + * again with a suitable JMESSAGE definition (see jerror.c for an example). + */ +#ifndef JMESSAGE +#ifndef JERROR_H +/* First time through, define the enum list */ +#define JMAKE_ENUM_LIST +#else +/* Repeated inclusions of this file are no-ops unless JMESSAGE is defined */ +#define JMESSAGE(code,string) +#endif /* JERROR_H */ +#endif /* JMESSAGE */ + +#ifdef JMAKE_ENUM_LIST + +typedef enum { + +#define JMESSAGE(code,string) code , + +#endif /* JMAKE_ENUM_LIST */ + +JMESSAGE(JMSG_NOMESSAGE, "Bogus message code %d") /* Must be first entry! */ + +/* For maintenance convenience, list is alphabetical by message code name */ +JMESSAGE(JERR_BAD_ALIGN_TYPE, "ALIGN_TYPE is wrong, please fix") +JMESSAGE(JERR_BAD_ALLOC_CHUNK, "MAX_ALLOC_CHUNK is wrong, please fix") +JMESSAGE(JERR_BAD_BUFFER_MODE, "Bogus buffer control mode") +JMESSAGE(JERR_BAD_COMPONENT_ID, "Invalid component ID %d in SOS") +JMESSAGE(JERR_BAD_CROP_SPEC, "Invalid crop request") +JMESSAGE(JERR_BAD_DCT_COEF, "DCT coefficient out of range") +JMESSAGE(JERR_BAD_DCTSIZE, "DCT scaled block size %dx%d not supported") +JMESSAGE(JERR_BAD_DROP_SAMPLING, + "Component index %d: mismatching sampling ratio %d:%d, %d:%d, %c") +JMESSAGE(JERR_BAD_HUFF_TABLE, "Bogus Huffman table definition") +JMESSAGE(JERR_BAD_IN_COLORSPACE, "Bogus input colorspace") +JMESSAGE(JERR_BAD_J_COLORSPACE, "Bogus JPEG colorspace") +JMESSAGE(JERR_BAD_LENGTH, "Bogus marker length") +JMESSAGE(JERR_BAD_LIB_VERSION, + "Wrong JPEG library version: library is %d, caller expects %d") +JMESSAGE(JERR_BAD_MCU_SIZE, "Sampling factors too large for interleaved scan") +JMESSAGE(JERR_BAD_POOL_ID, "Invalid memory pool code %d") +JMESSAGE(JERR_BAD_PRECISION, "Unsupported JPEG data precision %d") +JMESSAGE(JERR_BAD_PROGRESSION, + "Invalid progressive parameters Ss=%d Se=%d Ah=%d Al=%d") +JMESSAGE(JERR_BAD_PROG_SCRIPT, + "Invalid progressive parameters at scan script entry %d") +JMESSAGE(JERR_BAD_SAMPLING, "Bogus sampling factors") +JMESSAGE(JERR_BAD_SCAN_SCRIPT, "Invalid scan script at entry %d") +JMESSAGE(JERR_BAD_STATE, "Improper call to JPEG library in state %d") +JMESSAGE(JERR_BAD_STRUCT_SIZE, + "JPEG parameter struct mismatch: library thinks size is %u, caller expects %u") +JMESSAGE(JERR_BAD_VIRTUAL_ACCESS, "Bogus virtual array access") +JMESSAGE(JERR_BUFFER_SIZE, "Buffer passed to JPEG library is too small") +JMESSAGE(JERR_CANT_SUSPEND, "Suspension not allowed here") +JMESSAGE(JERR_CCIR601_NOTIMPL, "CCIR601 sampling not implemented yet") +JMESSAGE(JERR_COMPONENT_COUNT, "Too many color components: %d, max %d") +JMESSAGE(JERR_CONVERSION_NOTIMPL, "Unsupported color conversion request") +JMESSAGE(JERR_DAC_INDEX, "Bogus DAC index %d") +JMESSAGE(JERR_DAC_VALUE, "Bogus DAC value 0x%x") +JMESSAGE(JERR_DHT_INDEX, "Bogus DHT index %d") +JMESSAGE(JERR_DQT_INDEX, "Bogus DQT index %d") +JMESSAGE(JERR_EMPTY_IMAGE, "Empty JPEG image (DNL not supported)") +JMESSAGE(JERR_EMS_READ, "Read from EMS failed") +JMESSAGE(JERR_EMS_WRITE, "Write to EMS failed") +JMESSAGE(JERR_EOI_EXPECTED, "Didn't expect more than one scan") +JMESSAGE(JERR_FILE_READ, "Input file read error") +JMESSAGE(JERR_FILE_WRITE, "Output file write error --- out of disk space?") +JMESSAGE(JERR_FRACT_SAMPLE_NOTIMPL, "Fractional sampling not implemented yet") +JMESSAGE(JERR_HUFF_CLEN_OVERFLOW, "Huffman code size table overflow") +JMESSAGE(JERR_HUFF_MISSING_CODE, "Missing Huffman code table entry") +JMESSAGE(JERR_IMAGE_TOO_BIG, "Maximum supported image dimension is %u pixels") +JMESSAGE(JERR_INPUT_EMPTY, "Empty input file") +JMESSAGE(JERR_INPUT_EOF, "Premature end of input file") +JMESSAGE(JERR_MISMATCHED_QUANT_TABLE, + "Cannot transcode due to multiple use of quantization table %d") +JMESSAGE(JERR_MISSING_DATA, "Scan script does not transmit all data") +JMESSAGE(JERR_MODE_CHANGE, "Invalid color quantization mode change") +JMESSAGE(JERR_NOTIMPL, "Not implemented yet") +JMESSAGE(JERR_NOT_COMPILED, "Requested feature was omitted at compile time") +JMESSAGE(JERR_NO_ARITH_TABLE, "Arithmetic table 0x%02x was not defined") +JMESSAGE(JERR_NO_BACKING_STORE, "Backing store not supported") +JMESSAGE(JERR_NO_HUFF_TABLE, "Huffman table 0x%02x was not defined") +JMESSAGE(JERR_NO_IMAGE, "JPEG datastream contains no image") +JMESSAGE(JERR_NO_QUANT_TABLE, "Quantization table 0x%02x was not defined") +JMESSAGE(JERR_NO_SOI, "Not a JPEG file: starts with 0x%02x 0x%02x") +JMESSAGE(JERR_OUT_OF_MEMORY, "Insufficient memory (case %d)") +JMESSAGE(JERR_QUANT_COMPONENTS, + "Cannot quantize more than %d color components") +JMESSAGE(JERR_QUANT_FEW_COLORS, "Cannot quantize to fewer than %d colors") +JMESSAGE(JERR_QUANT_MANY_COLORS, "Cannot quantize to more than %d colors") +JMESSAGE(JERR_SOF_DUPLICATE, "Invalid JPEG file structure: two SOF markers") +JMESSAGE(JERR_SOF_NO_SOS, "Invalid JPEG file structure: missing SOS marker") +JMESSAGE(JERR_SOF_UNSUPPORTED, "Unsupported JPEG process: SOF type 0x%02x") +JMESSAGE(JERR_SOI_DUPLICATE, "Invalid JPEG file structure: two SOI markers") +JMESSAGE(JERR_SOS_NO_SOF, "Invalid JPEG file structure: SOS before SOF") +JMESSAGE(JERR_TFILE_CREATE, "Failed to create temporary file %s") +JMESSAGE(JERR_TFILE_READ, "Read failed on temporary file") +JMESSAGE(JERR_TFILE_SEEK, "Seek failed on temporary file") +JMESSAGE(JERR_TFILE_WRITE, + "Write failed on temporary file --- out of disk space?") +JMESSAGE(JERR_TOO_LITTLE_DATA, "Application transferred too few scanlines") +JMESSAGE(JERR_UNKNOWN_MARKER, "Unsupported marker type 0x%02x") +JMESSAGE(JERR_VIRTUAL_BUG, "Virtual array controller messed up") +JMESSAGE(JERR_WIDTH_OVERFLOW, "Image too wide for this implementation") +JMESSAGE(JERR_XMS_READ, "Read from XMS failed") +JMESSAGE(JERR_XMS_WRITE, "Write to XMS failed") +JMESSAGE(JMSG_COPYRIGHT, JCOPYRIGHT) +JMESSAGE(JMSG_VERSION, JVERSION) +JMESSAGE(JTRC_16BIT_TABLES, + "Caution: quantization tables are too coarse for baseline JPEG") +JMESSAGE(JTRC_ADOBE, + "Adobe APP14 marker: version %d, flags 0x%04x 0x%04x, transform %d") +JMESSAGE(JTRC_APP0, "Unknown APP0 marker (not JFIF), length %u") +JMESSAGE(JTRC_APP14, "Unknown APP14 marker (not Adobe), length %u") +JMESSAGE(JTRC_DAC, "Define Arithmetic Table 0x%02x: 0x%02x") +JMESSAGE(JTRC_DHT, "Define Huffman Table 0x%02x") +JMESSAGE(JTRC_DQT, "Define Quantization Table %d precision %d") +JMESSAGE(JTRC_DRI, "Define Restart Interval %u") +JMESSAGE(JTRC_EMS_CLOSE, "Freed EMS handle %u") +JMESSAGE(JTRC_EMS_OPEN, "Obtained EMS handle %u") +JMESSAGE(JTRC_EOI, "End Of Image") +JMESSAGE(JTRC_HUFFBITS, " %3d %3d %3d %3d %3d %3d %3d %3d") +JMESSAGE(JTRC_JFIF, "JFIF APP0 marker: version %d.%02d, density %dx%d %d") +JMESSAGE(JTRC_JFIF_BADTHUMBNAILSIZE, + "Warning: thumbnail image size does not match data length %u") +JMESSAGE(JTRC_JFIF_EXTENSION, + "JFIF extension marker: type 0x%02x, length %u") +JMESSAGE(JTRC_JFIF_THUMBNAIL, " with %d x %d thumbnail image") +JMESSAGE(JTRC_MISC_MARKER, "Miscellaneous marker 0x%02x, length %u") +JMESSAGE(JTRC_PARMLESS_MARKER, "Unexpected marker 0x%02x") +JMESSAGE(JTRC_QUANTVALS, " %4u %4u %4u %4u %4u %4u %4u %4u") +JMESSAGE(JTRC_QUANT_3_NCOLORS, "Quantizing to %d = %d*%d*%d colors") +JMESSAGE(JTRC_QUANT_NCOLORS, "Quantizing to %d colors") +JMESSAGE(JTRC_QUANT_SELECTED, "Selected %d colors for quantization") +JMESSAGE(JTRC_RECOVERY_ACTION, "At marker 0x%02x, recovery action %d") +JMESSAGE(JTRC_RST, "RST%d") +JMESSAGE(JTRC_SMOOTH_NOTIMPL, + "Smoothing not supported with nonstandard sampling ratios") +JMESSAGE(JTRC_SOF, "Start Of Frame 0x%02x: width=%u, height=%u, components=%d") +JMESSAGE(JTRC_SOF_COMPONENT, " Component %d: %dhx%dv q=%d") +JMESSAGE(JTRC_SOI, "Start of Image") +JMESSAGE(JTRC_SOS, "Start Of Scan: %d components") +JMESSAGE(JTRC_SOS_COMPONENT, " Component %d: dc=%d ac=%d") +JMESSAGE(JTRC_SOS_PARAMS, " Ss=%d, Se=%d, Ah=%d, Al=%d") +JMESSAGE(JTRC_TFILE_CLOSE, "Closed temporary file %s") +JMESSAGE(JTRC_TFILE_OPEN, "Opened temporary file %s") +JMESSAGE(JTRC_THUMB_JPEG, + "JFIF extension marker: JPEG-compressed thumbnail image, length %u") +JMESSAGE(JTRC_THUMB_PALETTE, + "JFIF extension marker: palette thumbnail image, length %u") +JMESSAGE(JTRC_THUMB_RGB, + "JFIF extension marker: RGB thumbnail image, length %u") +JMESSAGE(JTRC_UNKNOWN_IDS, + "Unrecognized component IDs %d %d %d, assuming YCbCr") +JMESSAGE(JTRC_XMS_CLOSE, "Freed XMS handle %u") +JMESSAGE(JTRC_XMS_OPEN, "Obtained XMS handle %u") +JMESSAGE(JWRN_ADOBE_XFORM, "Unknown Adobe color transform code %d") +JMESSAGE(JWRN_ARITH_BAD_CODE, "Corrupt JPEG data: bad arithmetic code") +JMESSAGE(JWRN_BOGUS_PROGRESSION, + "Inconsistent progression sequence for component %d coefficient %d") +JMESSAGE(JWRN_EXTRANEOUS_DATA, + "Corrupt JPEG data: %u extraneous bytes before marker 0x%02x") +JMESSAGE(JWRN_HIT_MARKER, "Corrupt JPEG data: premature end of data segment") +JMESSAGE(JWRN_HUFF_BAD_CODE, "Corrupt JPEG data: bad Huffman code") +JMESSAGE(JWRN_JFIF_MAJOR, "Warning: unknown JFIF revision number %d.%02d") +JMESSAGE(JWRN_JPEG_EOF, "Premature end of JPEG file") +JMESSAGE(JWRN_MUST_RESYNC, + "Corrupt JPEG data: found marker 0x%02x instead of RST%d") +JMESSAGE(JWRN_NOT_SEQUENTIAL, "Invalid SOS parameters for sequential JPEG") +JMESSAGE(JWRN_TOO_MUCH_DATA, "Application transferred too many scanlines") + +#ifdef JMAKE_ENUM_LIST + + JMSG_LASTMSGCODE +} J_MESSAGE_CODE; + +#undef JMAKE_ENUM_LIST +#endif /* JMAKE_ENUM_LIST */ + +/* Zap JMESSAGE macro so that future re-inclusions do nothing by default */ +#undef JMESSAGE + + +#ifndef JERROR_H +#define JERROR_H + +/* Macros to simplify using the error and trace message stuff */ +/* The first parameter is either type of cinfo pointer */ + +/* Fatal errors (print message and exit) */ +#define ERREXIT(cinfo,code) \ + ((cinfo)->err->msg_code = (code), \ + (*(cinfo)->err->error_exit) ((j_common_ptr) (cinfo))) +#define ERREXIT1(cinfo,code,p1) \ + ((cinfo)->err->msg_code = (code), \ + (cinfo)->err->msg_parm.i[0] = (p1), \ + (*(cinfo)->err->error_exit) ((j_common_ptr) (cinfo))) +#define ERREXIT2(cinfo,code,p1,p2) \ + ((cinfo)->err->msg_code = (code), \ + (cinfo)->err->msg_parm.i[0] = (p1), \ + (cinfo)->err->msg_parm.i[1] = (p2), \ + (*(cinfo)->err->error_exit) ((j_common_ptr) (cinfo))) +#define ERREXIT3(cinfo,code,p1,p2,p3) \ + ((cinfo)->err->msg_code = (code), \ + (cinfo)->err->msg_parm.i[0] = (p1), \ + (cinfo)->err->msg_parm.i[1] = (p2), \ + (cinfo)->err->msg_parm.i[2] = (p3), \ + (*(cinfo)->err->error_exit) ((j_common_ptr) (cinfo))) +#define ERREXIT4(cinfo,code,p1,p2,p3,p4) \ + ((cinfo)->err->msg_code = (code), \ + (cinfo)->err->msg_parm.i[0] = (p1), \ + (cinfo)->err->msg_parm.i[1] = (p2), \ + (cinfo)->err->msg_parm.i[2] = (p3), \ + (cinfo)->err->msg_parm.i[3] = (p4), \ + (*(cinfo)->err->error_exit) ((j_common_ptr) (cinfo))) +#define ERREXIT6(cinfo,code,p1,p2,p3,p4,p5,p6) \ + ((cinfo)->err->msg_code = (code), \ + (cinfo)->err->msg_parm.i[0] = (p1), \ + (cinfo)->err->msg_parm.i[1] = (p2), \ + (cinfo)->err->msg_parm.i[2] = (p3), \ + (cinfo)->err->msg_parm.i[3] = (p4), \ + (cinfo)->err->msg_parm.i[4] = (p5), \ + (cinfo)->err->msg_parm.i[5] = (p6), \ + (*(cinfo)->err->error_exit) ((j_common_ptr) (cinfo))) +#define ERREXITS(cinfo,code,str) \ + ((cinfo)->err->msg_code = (code), \ + strncpy((cinfo)->err->msg_parm.s, (str), JMSG_STR_PARM_MAX), \ + (*(cinfo)->err->error_exit) ((j_common_ptr) (cinfo))) + +#define MAKESTMT(stuff) do { stuff } while (0) + +/* Nonfatal errors (we can keep going, but the data is probably corrupt) */ +#define WARNMS(cinfo,code) \ + ((cinfo)->err->msg_code = (code), \ + (*(cinfo)->err->emit_message) ((j_common_ptr) (cinfo), -1)) +#define WARNMS1(cinfo,code,p1) \ + ((cinfo)->err->msg_code = (code), \ + (cinfo)->err->msg_parm.i[0] = (p1), \ + (*(cinfo)->err->emit_message) ((j_common_ptr) (cinfo), -1)) +#define WARNMS2(cinfo,code,p1,p2) \ + ((cinfo)->err->msg_code = (code), \ + (cinfo)->err->msg_parm.i[0] = (p1), \ + (cinfo)->err->msg_parm.i[1] = (p2), \ + (*(cinfo)->err->emit_message) ((j_common_ptr) (cinfo), -1)) + +/* Informational/debugging messages */ +#define TRACEMS(cinfo,lvl,code) \ + ((cinfo)->err->msg_code = (code), \ + (*(cinfo)->err->emit_message) ((j_common_ptr) (cinfo), (lvl))) +#define TRACEMS1(cinfo,lvl,code,p1) \ + ((cinfo)->err->msg_code = (code), \ + (cinfo)->err->msg_parm.i[0] = (p1), \ + (*(cinfo)->err->emit_message) ((j_common_ptr) (cinfo), (lvl))) +#define TRACEMS2(cinfo,lvl,code,p1,p2) \ + ((cinfo)->err->msg_code = (code), \ + (cinfo)->err->msg_parm.i[0] = (p1), \ + (cinfo)->err->msg_parm.i[1] = (p2), \ + (*(cinfo)->err->emit_message) ((j_common_ptr) (cinfo), (lvl))) +#define TRACEMS3(cinfo,lvl,code,p1,p2,p3) \ + MAKESTMT(int * _mp = (cinfo)->err->msg_parm.i; \ + _mp[0] = (p1); _mp[1] = (p2); _mp[2] = (p3); \ + (cinfo)->err->msg_code = (code); \ + (*(cinfo)->err->emit_message) ((j_common_ptr) (cinfo), (lvl)); ) +#define TRACEMS4(cinfo,lvl,code,p1,p2,p3,p4) \ + MAKESTMT(int * _mp = (cinfo)->err->msg_parm.i; \ + _mp[0] = (p1); _mp[1] = (p2); _mp[2] = (p3); _mp[3] = (p4); \ + (cinfo)->err->msg_code = (code); \ + (*(cinfo)->err->emit_message) ((j_common_ptr) (cinfo), (lvl)); ) +#define TRACEMS5(cinfo,lvl,code,p1,p2,p3,p4,p5) \ + MAKESTMT(int * _mp = (cinfo)->err->msg_parm.i; \ + _mp[0] = (p1); _mp[1] = (p2); _mp[2] = (p3); _mp[3] = (p4); \ + _mp[4] = (p5); \ + (cinfo)->err->msg_code = (code); \ + (*(cinfo)->err->emit_message) ((j_common_ptr) (cinfo), (lvl)); ) +#define TRACEMS8(cinfo,lvl,code,p1,p2,p3,p4,p5,p6,p7,p8) \ + MAKESTMT(int * _mp = (cinfo)->err->msg_parm.i; \ + _mp[0] = (p1); _mp[1] = (p2); _mp[2] = (p3); _mp[3] = (p4); \ + _mp[4] = (p5); _mp[5] = (p6); _mp[6] = (p7); _mp[7] = (p8); \ + (cinfo)->err->msg_code = (code); \ + (*(cinfo)->err->emit_message) ((j_common_ptr) (cinfo), (lvl)); ) +#define TRACEMSS(cinfo,lvl,code,str) \ + ((cinfo)->err->msg_code = (code), \ + strncpy((cinfo)->err->msg_parm.s, (str), JMSG_STR_PARM_MAX), \ + (*(cinfo)->err->emit_message) ((j_common_ptr) (cinfo), (lvl))) + +#endif /* JERROR_H */ diff --git a/jpeg/jfdctflt.c b/jpeg/jfdctflt.c new file mode 100644 index 0000000..74d0d86 --- /dev/null +++ b/jpeg/jfdctflt.c @@ -0,0 +1,174 @@ +/* + * jfdctflt.c + * + * Copyright (C) 1994-1996, Thomas G. Lane. + * Modified 2003-2009 by Guido Vollbeding. + * This file is part of the Independent JPEG Group's software. + * For conditions of distribution and use, see the accompanying README file. + * + * This file contains a floating-point implementation of the + * forward DCT (Discrete Cosine Transform). + * + * This implementation should be more accurate than either of the integer + * DCT implementations. However, it may not give the same results on all + * machines because of differences in roundoff behavior. Speed will depend + * on the hardware's floating point capacity. + * + * A 2-D DCT can be done by 1-D DCT on each row followed by 1-D DCT + * on each column. Direct algorithms are also available, but they are + * much more complex and seem not to be any faster when reduced to code. + * + * This implementation is based on Arai, Agui, and Nakajima's algorithm for + * scaled DCT. Their original paper (Trans. IEICE E-71(11):1095) is in + * Japanese, but the algorithm is described in the Pennebaker & Mitchell + * JPEG textbook (see REFERENCES section in file README). The following code + * is based directly on figure 4-8 in P&M. + * While an 8-point DCT cannot be done in less than 11 multiplies, it is + * possible to arrange the computation so that many of the multiplies are + * simple scalings of the final outputs. These multiplies can then be + * folded into the multiplications or divisions by the JPEG quantization + * table entries. The AA&N method leaves only 5 multiplies and 29 adds + * to be done in the DCT itself. + * The primary disadvantage of this method is that with a fixed-point + * implementation, accuracy is lost due to imprecise representation of the + * scaled quantization values. However, that problem does not arise if + * we use floating point arithmetic. + */ + +#define JPEG_INTERNALS +#include "jinclude.h" +#include "jpeglib.h" +#include "jdct.h" /* Private declarations for DCT subsystem */ + +#ifdef DCT_FLOAT_SUPPORTED + + +/* + * This module is specialized to the case DCTSIZE = 8. + */ + +#if DCTSIZE != 8 + Sorry, this code only copes with 8x8 DCTs. /* deliberate syntax err */ +#endif + + +/* + * Perform the forward DCT on one block of samples. + */ + +GLOBAL(void) +jpeg_fdct_float (FAST_FLOAT * data, JSAMPARRAY sample_data, JDIMENSION start_col) +{ + FAST_FLOAT tmp0, tmp1, tmp2, tmp3, tmp4, tmp5, tmp6, tmp7; + FAST_FLOAT tmp10, tmp11, tmp12, tmp13; + FAST_FLOAT z1, z2, z3, z4, z5, z11, z13; + FAST_FLOAT *dataptr; + JSAMPROW elemptr; + int ctr; + + /* Pass 1: process rows. */ + + dataptr = data; + for (ctr = 0; ctr < DCTSIZE; ctr++) { + elemptr = sample_data[ctr] + start_col; + + /* Load data into workspace */ + tmp0 = (FAST_FLOAT) (GETJSAMPLE(elemptr[0]) + GETJSAMPLE(elemptr[7])); + tmp7 = (FAST_FLOAT) (GETJSAMPLE(elemptr[0]) - GETJSAMPLE(elemptr[7])); + tmp1 = (FAST_FLOAT) (GETJSAMPLE(elemptr[1]) + GETJSAMPLE(elemptr[6])); + tmp6 = (FAST_FLOAT) (GETJSAMPLE(elemptr[1]) - GETJSAMPLE(elemptr[6])); + tmp2 = (FAST_FLOAT) (GETJSAMPLE(elemptr[2]) + GETJSAMPLE(elemptr[5])); + tmp5 = (FAST_FLOAT) (GETJSAMPLE(elemptr[2]) - GETJSAMPLE(elemptr[5])); + tmp3 = (FAST_FLOAT) (GETJSAMPLE(elemptr[3]) + GETJSAMPLE(elemptr[4])); + tmp4 = (FAST_FLOAT) (GETJSAMPLE(elemptr[3]) - GETJSAMPLE(elemptr[4])); + + /* Even part */ + + tmp10 = tmp0 + tmp3; /* phase 2 */ + tmp13 = tmp0 - tmp3; + tmp11 = tmp1 + tmp2; + tmp12 = tmp1 - tmp2; + + /* Apply unsigned->signed conversion */ + dataptr[0] = tmp10 + tmp11 - 8 * CENTERJSAMPLE; /* phase 3 */ + dataptr[4] = tmp10 - tmp11; + + z1 = (tmp12 + tmp13) * ((FAST_FLOAT) 0.707106781); /* c4 */ + dataptr[2] = tmp13 + z1; /* phase 5 */ + dataptr[6] = tmp13 - z1; + + /* Odd part */ + + tmp10 = tmp4 + tmp5; /* phase 2 */ + tmp11 = tmp5 + tmp6; + tmp12 = tmp6 + tmp7; + + /* The rotator is modified from fig 4-8 to avoid extra negations. */ + z5 = (tmp10 - tmp12) * ((FAST_FLOAT) 0.382683433); /* c6 */ + z2 = ((FAST_FLOAT) 0.541196100) * tmp10 + z5; /* c2-c6 */ + z4 = ((FAST_FLOAT) 1.306562965) * tmp12 + z5; /* c2+c6 */ + z3 = tmp11 * ((FAST_FLOAT) 0.707106781); /* c4 */ + + z11 = tmp7 + z3; /* phase 5 */ + z13 = tmp7 - z3; + + dataptr[5] = z13 + z2; /* phase 6 */ + dataptr[3] = z13 - z2; + dataptr[1] = z11 + z4; + dataptr[7] = z11 - z4; + + dataptr += DCTSIZE; /* advance pointer to next row */ + } + + /* Pass 2: process columns. */ + + dataptr = data; + for (ctr = DCTSIZE-1; ctr >= 0; ctr--) { + tmp0 = dataptr[DCTSIZE*0] + dataptr[DCTSIZE*7]; + tmp7 = dataptr[DCTSIZE*0] - dataptr[DCTSIZE*7]; + tmp1 = dataptr[DCTSIZE*1] + dataptr[DCTSIZE*6]; + tmp6 = dataptr[DCTSIZE*1] - dataptr[DCTSIZE*6]; + tmp2 = dataptr[DCTSIZE*2] + dataptr[DCTSIZE*5]; + tmp5 = dataptr[DCTSIZE*2] - dataptr[DCTSIZE*5]; + tmp3 = dataptr[DCTSIZE*3] + dataptr[DCTSIZE*4]; + tmp4 = dataptr[DCTSIZE*3] - dataptr[DCTSIZE*4]; + + /* Even part */ + + tmp10 = tmp0 + tmp3; /* phase 2 */ + tmp13 = tmp0 - tmp3; + tmp11 = tmp1 + tmp2; + tmp12 = tmp1 - tmp2; + + dataptr[DCTSIZE*0] = tmp10 + tmp11; /* phase 3 */ + dataptr[DCTSIZE*4] = tmp10 - tmp11; + + z1 = (tmp12 + tmp13) * ((FAST_FLOAT) 0.707106781); /* c4 */ + dataptr[DCTSIZE*2] = tmp13 + z1; /* phase 5 */ + dataptr[DCTSIZE*6] = tmp13 - z1; + + /* Odd part */ + + tmp10 = tmp4 + tmp5; /* phase 2 */ + tmp11 = tmp5 + tmp6; + tmp12 = tmp6 + tmp7; + + /* The rotator is modified from fig 4-8 to avoid extra negations. */ + z5 = (tmp10 - tmp12) * ((FAST_FLOAT) 0.382683433); /* c6 */ + z2 = ((FAST_FLOAT) 0.541196100) * tmp10 + z5; /* c2-c6 */ + z4 = ((FAST_FLOAT) 1.306562965) * tmp12 + z5; /* c2+c6 */ + z3 = tmp11 * ((FAST_FLOAT) 0.707106781); /* c4 */ + + z11 = tmp7 + z3; /* phase 5 */ + z13 = tmp7 - z3; + + dataptr[DCTSIZE*5] = z13 + z2; /* phase 6 */ + dataptr[DCTSIZE*3] = z13 - z2; + dataptr[DCTSIZE*1] = z11 + z4; + dataptr[DCTSIZE*7] = z11 - z4; + + dataptr++; /* advance pointer to next column */ + } +} + +#endif /* DCT_FLOAT_SUPPORTED */ diff --git a/jpeg/jfdctfst.c b/jpeg/jfdctfst.c new file mode 100644 index 0000000..8cad5f2 --- /dev/null +++ b/jpeg/jfdctfst.c @@ -0,0 +1,230 @@ +/* + * jfdctfst.c + * + * Copyright (C) 1994-1996, Thomas G. Lane. + * Modified 2003-2009 by Guido Vollbeding. + * This file is part of the Independent JPEG Group's software. + * For conditions of distribution and use, see the accompanying README file. + * + * This file contains a fast, not so accurate integer implementation of the + * forward DCT (Discrete Cosine Transform). + * + * A 2-D DCT can be done by 1-D DCT on each row followed by 1-D DCT + * on each column. Direct algorithms are also available, but they are + * much more complex and seem not to be any faster when reduced to code. + * + * This implementation is based on Arai, Agui, and Nakajima's algorithm for + * scaled DCT. Their original paper (Trans. IEICE E-71(11):1095) is in + * Japanese, but the algorithm is described in the Pennebaker & Mitchell + * JPEG textbook (see REFERENCES section in file README). The following code + * is based directly on figure 4-8 in P&M. + * While an 8-point DCT cannot be done in less than 11 multiplies, it is + * possible to arrange the computation so that many of the multiplies are + * simple scalings of the final outputs. These multiplies can then be + * folded into the multiplications or divisions by the JPEG quantization + * table entries. The AA&N method leaves only 5 multiplies and 29 adds + * to be done in the DCT itself. + * The primary disadvantage of this method is that with fixed-point math, + * accuracy is lost due to imprecise representation of the scaled + * quantization values. The smaller the quantization table entry, the less + * precise the scaled value, so this implementation does worse with high- + * quality-setting files than with low-quality ones. + */ + +#define JPEG_INTERNALS +#include "jinclude.h" +#include "jpeglib.h" +#include "jdct.h" /* Private declarations for DCT subsystem */ + +#ifdef DCT_IFAST_SUPPORTED + + +/* + * This module is specialized to the case DCTSIZE = 8. + */ + +#if DCTSIZE != 8 + Sorry, this code only copes with 8x8 DCTs. /* deliberate syntax err */ +#endif + + +/* Scaling decisions are generally the same as in the LL&M algorithm; + * see jfdctint.c for more details. However, we choose to descale + * (right shift) multiplication products as soon as they are formed, + * rather than carrying additional fractional bits into subsequent additions. + * This compromises accuracy slightly, but it lets us save a few shifts. + * More importantly, 16-bit arithmetic is then adequate (for 8-bit samples) + * everywhere except in the multiplications proper; this saves a good deal + * of work on 16-bit-int machines. + * + * Again to save a few shifts, the intermediate results between pass 1 and + * pass 2 are not upscaled, but are represented only to integral precision. + * + * A final compromise is to represent the multiplicative constants to only + * 8 fractional bits, rather than 13. This saves some shifting work on some + * machines, and may also reduce the cost of multiplication (since there + * are fewer one-bits in the constants). + */ + +#define CONST_BITS 8 + + +/* Some C compilers fail to reduce "FIX(constant)" at compile time, thus + * causing a lot of useless floating-point operations at run time. + * To get around this we use the following pre-calculated constants. + * If you change CONST_BITS you may want to add appropriate values. + * (With a reasonable C compiler, you can just rely on the FIX() macro...) + */ + +#if CONST_BITS == 8 +#define FIX_0_382683433 ((INT32) 98) /* FIX(0.382683433) */ +#define FIX_0_541196100 ((INT32) 139) /* FIX(0.541196100) */ +#define FIX_0_707106781 ((INT32) 181) /* FIX(0.707106781) */ +#define FIX_1_306562965 ((INT32) 334) /* FIX(1.306562965) */ +#else +#define FIX_0_382683433 FIX(0.382683433) +#define FIX_0_541196100 FIX(0.541196100) +#define FIX_0_707106781 FIX(0.707106781) +#define FIX_1_306562965 FIX(1.306562965) +#endif + + +/* We can gain a little more speed, with a further compromise in accuracy, + * by omitting the addition in a descaling shift. This yields an incorrectly + * rounded result half the time... + */ + +#ifndef USE_ACCURATE_ROUNDING +#undef DESCALE +#define DESCALE(x,n) RIGHT_SHIFT(x, n) +#endif + + +/* Multiply a DCTELEM variable by an INT32 constant, and immediately + * descale to yield a DCTELEM result. + */ + +#define MULTIPLY(var,const) ((DCTELEM) DESCALE((var) * (const), CONST_BITS)) + + +/* + * Perform the forward DCT on one block of samples. + */ + +GLOBAL(void) +jpeg_fdct_ifast (DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col) +{ + DCTELEM tmp0, tmp1, tmp2, tmp3, tmp4, tmp5, tmp6, tmp7; + DCTELEM tmp10, tmp11, tmp12, tmp13; + DCTELEM z1, z2, z3, z4, z5, z11, z13; + DCTELEM *dataptr; + JSAMPROW elemptr; + int ctr; + SHIFT_TEMPS + + /* Pass 1: process rows. */ + + dataptr = data; + for (ctr = 0; ctr < DCTSIZE; ctr++) { + elemptr = sample_data[ctr] + start_col; + + /* Load data into workspace */ + tmp0 = GETJSAMPLE(elemptr[0]) + GETJSAMPLE(elemptr[7]); + tmp7 = GETJSAMPLE(elemptr[0]) - GETJSAMPLE(elemptr[7]); + tmp1 = GETJSAMPLE(elemptr[1]) + GETJSAMPLE(elemptr[6]); + tmp6 = GETJSAMPLE(elemptr[1]) - GETJSAMPLE(elemptr[6]); + tmp2 = GETJSAMPLE(elemptr[2]) + GETJSAMPLE(elemptr[5]); + tmp5 = GETJSAMPLE(elemptr[2]) - GETJSAMPLE(elemptr[5]); + tmp3 = GETJSAMPLE(elemptr[3]) + GETJSAMPLE(elemptr[4]); + tmp4 = GETJSAMPLE(elemptr[3]) - GETJSAMPLE(elemptr[4]); + + /* Even part */ + + tmp10 = tmp0 + tmp3; /* phase 2 */ + tmp13 = tmp0 - tmp3; + tmp11 = tmp1 + tmp2; + tmp12 = tmp1 - tmp2; + + /* Apply unsigned->signed conversion */ + dataptr[0] = tmp10 + tmp11 - 8 * CENTERJSAMPLE; /* phase 3 */ + dataptr[4] = tmp10 - tmp11; + + z1 = MULTIPLY(tmp12 + tmp13, FIX_0_707106781); /* c4 */ + dataptr[2] = tmp13 + z1; /* phase 5 */ + dataptr[6] = tmp13 - z1; + + /* Odd part */ + + tmp10 = tmp4 + tmp5; /* phase 2 */ + tmp11 = tmp5 + tmp6; + tmp12 = tmp6 + tmp7; + + /* The rotator is modified from fig 4-8 to avoid extra negations. */ + z5 = MULTIPLY(tmp10 - tmp12, FIX_0_382683433); /* c6 */ + z2 = MULTIPLY(tmp10, FIX_0_541196100) + z5; /* c2-c6 */ + z4 = MULTIPLY(tmp12, FIX_1_306562965) + z5; /* c2+c6 */ + z3 = MULTIPLY(tmp11, FIX_0_707106781); /* c4 */ + + z11 = tmp7 + z3; /* phase 5 */ + z13 = tmp7 - z3; + + dataptr[5] = z13 + z2; /* phase 6 */ + dataptr[3] = z13 - z2; + dataptr[1] = z11 + z4; + dataptr[7] = z11 - z4; + + dataptr += DCTSIZE; /* advance pointer to next row */ + } + + /* Pass 2: process columns. */ + + dataptr = data; + for (ctr = DCTSIZE-1; ctr >= 0; ctr--) { + tmp0 = dataptr[DCTSIZE*0] + dataptr[DCTSIZE*7]; + tmp7 = dataptr[DCTSIZE*0] - dataptr[DCTSIZE*7]; + tmp1 = dataptr[DCTSIZE*1] + dataptr[DCTSIZE*6]; + tmp6 = dataptr[DCTSIZE*1] - dataptr[DCTSIZE*6]; + tmp2 = dataptr[DCTSIZE*2] + dataptr[DCTSIZE*5]; + tmp5 = dataptr[DCTSIZE*2] - dataptr[DCTSIZE*5]; + tmp3 = dataptr[DCTSIZE*3] + dataptr[DCTSIZE*4]; + tmp4 = dataptr[DCTSIZE*3] - dataptr[DCTSIZE*4]; + + /* Even part */ + + tmp10 = tmp0 + tmp3; /* phase 2 */ + tmp13 = tmp0 - tmp3; + tmp11 = tmp1 + tmp2; + tmp12 = tmp1 - tmp2; + + dataptr[DCTSIZE*0] = tmp10 + tmp11; /* phase 3 */ + dataptr[DCTSIZE*4] = tmp10 - tmp11; + + z1 = MULTIPLY(tmp12 + tmp13, FIX_0_707106781); /* c4 */ + dataptr[DCTSIZE*2] = tmp13 + z1; /* phase 5 */ + dataptr[DCTSIZE*6] = tmp13 - z1; + + /* Odd part */ + + tmp10 = tmp4 + tmp5; /* phase 2 */ + tmp11 = tmp5 + tmp6; + tmp12 = tmp6 + tmp7; + + /* The rotator is modified from fig 4-8 to avoid extra negations. */ + z5 = MULTIPLY(tmp10 - tmp12, FIX_0_382683433); /* c6 */ + z2 = MULTIPLY(tmp10, FIX_0_541196100) + z5; /* c2-c6 */ + z4 = MULTIPLY(tmp12, FIX_1_306562965) + z5; /* c2+c6 */ + z3 = MULTIPLY(tmp11, FIX_0_707106781); /* c4 */ + + z11 = tmp7 + z3; /* phase 5 */ + z13 = tmp7 - z3; + + dataptr[DCTSIZE*5] = z13 + z2; /* phase 6 */ + dataptr[DCTSIZE*3] = z13 - z2; + dataptr[DCTSIZE*1] = z11 + z4; + dataptr[DCTSIZE*7] = z11 - z4; + + dataptr++; /* advance pointer to next column */ + } +} + +#endif /* DCT_IFAST_SUPPORTED */ diff --git a/jpeg/jfdctint.c b/jpeg/jfdctint.c new file mode 100644 index 0000000..1dde58c --- /dev/null +++ b/jpeg/jfdctint.c @@ -0,0 +1,4348 @@ +/* + * jfdctint.c + * + * Copyright (C) 1991-1996, Thomas G. Lane. + * Modification developed 2003-2009 by Guido Vollbeding. + * This file is part of the Independent JPEG Group's software. + * For conditions of distribution and use, see the accompanying README file. + * + * This file contains a slow-but-accurate integer implementation of the + * forward DCT (Discrete Cosine Transform). + * + * A 2-D DCT can be done by 1-D DCT on each row followed by 1-D DCT + * on each column. Direct algorithms are also available, but they are + * much more complex and seem not to be any faster when reduced to code. + * + * This implementation is based on an algorithm described in + * C. Loeffler, A. Ligtenberg and G. Moschytz, "Practical Fast 1-D DCT + * Algorithms with 11 Multiplications", Proc. Int'l. Conf. on Acoustics, + * Speech, and Signal Processing 1989 (ICASSP '89), pp. 988-991. + * The primary algorithm described there uses 11 multiplies and 29 adds. + * We use their alternate method with 12 multiplies and 32 adds. + * The advantage of this method is that no data path contains more than one + * multiplication; this allows a very simple and accurate implementation in + * scaled fixed-point arithmetic, with a minimal number of shifts. + * + * We also provide FDCT routines with various input sample block sizes for + * direct resolution reduction or enlargement and for direct resolving the + * common 2x1 and 1x2 subsampling cases without additional resampling: NxN + * (N=1...16), 2NxN, and Nx2N (N=1...8) pixels for one 8x8 output DCT block. + * + * For N<8 we fill the remaining block coefficients with zero. + * For N>8 we apply a partial N-point FDCT on the input samples, computing + * just the lower 8 frequency coefficients and discarding the rest. + * + * We must scale the output coefficients of the N-point FDCT appropriately + * to the standard 8-point FDCT level by 8/N per 1-D pass. This scaling + * is folded into the constant multipliers (pass 2) and/or final/initial + * shifting. + * + * CAUTION: We rely on the FIX() macro except for the N=1,2,4,8 cases + * since there would be too many additional constants to pre-calculate. + */ + +#define JPEG_INTERNALS +#include "jinclude.h" +#include "jpeglib.h" +#include "jdct.h" /* Private declarations for DCT subsystem */ + +#ifdef DCT_ISLOW_SUPPORTED + + +/* + * This module is specialized to the case DCTSIZE = 8. + */ + +#if DCTSIZE != 8 + Sorry, this code only copes with 8x8 DCT blocks. /* deliberate syntax err */ +#endif + + +/* + * The poop on this scaling stuff is as follows: + * + * Each 1-D DCT step produces outputs which are a factor of sqrt(N) + * larger than the true DCT outputs. The final outputs are therefore + * a factor of N larger than desired; since N=8 this can be cured by + * a simple right shift at the end of the algorithm. The advantage of + * this arrangement is that we save two multiplications per 1-D DCT, + * because the y0 and y4 outputs need not be divided by sqrt(N). + * In the IJG code, this factor of 8 is removed by the quantization step + * (in jcdctmgr.c), NOT in this module. + * + * We have to do addition and subtraction of the integer inputs, which + * is no problem, and multiplication by fractional constants, which is + * a problem to do in integer arithmetic. We multiply all the constants + * by CONST_SCALE and convert them to integer constants (thus retaining + * CONST_BITS bits of precision in the constants). After doing a + * multiplication we have to divide the product by CONST_SCALE, with proper + * rounding, to produce the correct output. This division can be done + * cheaply as a right shift of CONST_BITS bits. We postpone shifting + * as long as possible so that partial sums can be added together with + * full fractional precision. + * + * The outputs of the first pass are scaled up by PASS1_BITS bits so that + * they are represented to better-than-integral precision. These outputs + * require BITS_IN_JSAMPLE + PASS1_BITS + 3 bits; this fits in a 16-bit word + * with the recommended scaling. (For 12-bit sample data, the intermediate + * array is INT32 anyway.) + * + * To avoid overflow of the 32-bit intermediate results in pass 2, we must + * have BITS_IN_JSAMPLE + CONST_BITS + PASS1_BITS <= 26. Error analysis + * shows that the values given below are the most effective. + */ + +#if BITS_IN_JSAMPLE == 8 +#define CONST_BITS 13 +#define PASS1_BITS 2 +#else +#define CONST_BITS 13 +#define PASS1_BITS 1 /* lose a little precision to avoid overflow */ +#endif + +/* Some C compilers fail to reduce "FIX(constant)" at compile time, thus + * causing a lot of useless floating-point operations at run time. + * To get around this we use the following pre-calculated constants. + * If you change CONST_BITS you may want to add appropriate values. + * (With a reasonable C compiler, you can just rely on the FIX() macro...) + */ + +#if CONST_BITS == 13 +#define FIX_0_298631336 ((INT32) 2446) /* FIX(0.298631336) */ +#define FIX_0_390180644 ((INT32) 3196) /* FIX(0.390180644) */ +#define FIX_0_541196100 ((INT32) 4433) /* FIX(0.541196100) */ +#define FIX_0_765366865 ((INT32) 6270) /* FIX(0.765366865) */ +#define FIX_0_899976223 ((INT32) 7373) /* FIX(0.899976223) */ +#define FIX_1_175875602 ((INT32) 9633) /* FIX(1.175875602) */ +#define FIX_1_501321110 ((INT32) 12299) /* FIX(1.501321110) */ +#define FIX_1_847759065 ((INT32) 15137) /* FIX(1.847759065) */ +#define FIX_1_961570560 ((INT32) 16069) /* FIX(1.961570560) */ +#define FIX_2_053119869 ((INT32) 16819) /* FIX(2.053119869) */ +#define FIX_2_562915447 ((INT32) 20995) /* FIX(2.562915447) */ +#define FIX_3_072711026 ((INT32) 25172) /* FIX(3.072711026) */ +#else +#define FIX_0_298631336 FIX(0.298631336) +#define FIX_0_390180644 FIX(0.390180644) +#define FIX_0_541196100 FIX(0.541196100) +#define FIX_0_765366865 FIX(0.765366865) +#define FIX_0_899976223 FIX(0.899976223) +#define FIX_1_175875602 FIX(1.175875602) +#define FIX_1_501321110 FIX(1.501321110) +#define FIX_1_847759065 FIX(1.847759065) +#define FIX_1_961570560 FIX(1.961570560) +#define FIX_2_053119869 FIX(2.053119869) +#define FIX_2_562915447 FIX(2.562915447) +#define FIX_3_072711026 FIX(3.072711026) +#endif + + +/* Multiply an INT32 variable by an INT32 constant to yield an INT32 result. + * For 8-bit samples with the recommended scaling, all the variable + * and constant values involved are no more than 16 bits wide, so a + * 16x16->32 bit multiply can be used instead of a full 32x32 multiply. + * For 12-bit samples, a full 32-bit multiplication will be needed. + */ + +#if BITS_IN_JSAMPLE == 8 +#define MULTIPLY(var,const) MULTIPLY16C16(var,const) +#else +#define MULTIPLY(var,const) ((var) * (const)) +#endif + + +/* + * Perform the forward DCT on one block of samples. + */ + +GLOBAL(void) +jpeg_fdct_islow (DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col) +{ + INT32 tmp0, tmp1, tmp2, tmp3; + INT32 tmp10, tmp11, tmp12, tmp13; + INT32 z1; + DCTELEM *dataptr; + JSAMPROW elemptr; + int ctr; + SHIFT_TEMPS + + /* Pass 1: process rows. */ + /* Note results are scaled up by sqrt(8) compared to a true DCT; */ + /* furthermore, we scale the results by 2**PASS1_BITS. */ + + dataptr = data; + for (ctr = 0; ctr < DCTSIZE; ctr++) { + elemptr = sample_data[ctr] + start_col; + + /* Even part per LL&M figure 1 --- note that published figure is faulty; + * rotator "sqrt(2)*c1" should be "sqrt(2)*c6". + */ + + tmp0 = GETJSAMPLE(elemptr[0]) + GETJSAMPLE(elemptr[7]); + tmp1 = GETJSAMPLE(elemptr[1]) + GETJSAMPLE(elemptr[6]); + tmp2 = GETJSAMPLE(elemptr[2]) + GETJSAMPLE(elemptr[5]); + tmp3 = GETJSAMPLE(elemptr[3]) + GETJSAMPLE(elemptr[4]); + + tmp10 = tmp0 + tmp3; + tmp12 = tmp0 - tmp3; + tmp11 = tmp1 + tmp2; + tmp13 = tmp1 - tmp2; + + tmp0 = GETJSAMPLE(elemptr[0]) - GETJSAMPLE(elemptr[7]); + tmp1 = GETJSAMPLE(elemptr[1]) - GETJSAMPLE(elemptr[6]); + tmp2 = GETJSAMPLE(elemptr[2]) - GETJSAMPLE(elemptr[5]); + tmp3 = GETJSAMPLE(elemptr[3]) - GETJSAMPLE(elemptr[4]); + + /* Apply unsigned->signed conversion */ + dataptr[0] = (DCTELEM) ((tmp10 + tmp11 - 8 * CENTERJSAMPLE) << PASS1_BITS); + dataptr[4] = (DCTELEM) ((tmp10 - tmp11) << PASS1_BITS); + + z1 = MULTIPLY(tmp12 + tmp13, FIX_0_541196100); + /* Add fudge factor here for final descale. */ + z1 += ONE << (CONST_BITS-PASS1_BITS-1); + dataptr[2] = (DCTELEM) RIGHT_SHIFT(z1 + MULTIPLY(tmp12, FIX_0_765366865), + CONST_BITS-PASS1_BITS); + dataptr[6] = (DCTELEM) RIGHT_SHIFT(z1 - MULTIPLY(tmp13, FIX_1_847759065), + CONST_BITS-PASS1_BITS); + + /* Odd part per figure 8 --- note paper omits factor of sqrt(2). + * cK represents sqrt(2) * cos(K*pi/16). + * i0..i3 in the paper are tmp0..tmp3 here. + */ + + tmp10 = tmp0 + tmp3; + tmp11 = tmp1 + tmp2; + tmp12 = tmp0 + tmp2; + tmp13 = tmp1 + tmp3; + z1 = MULTIPLY(tmp12 + tmp13, FIX_1_175875602); /* c3 */ + /* Add fudge factor here for final descale. */ + z1 += ONE << (CONST_BITS-PASS1_BITS-1); + + tmp0 = MULTIPLY(tmp0, FIX_1_501321110); /* c1+c3-c5-c7 */ + tmp1 = MULTIPLY(tmp1, FIX_3_072711026); /* c1+c3+c5-c7 */ + tmp2 = MULTIPLY(tmp2, FIX_2_053119869); /* c1+c3-c5+c7 */ + tmp3 = MULTIPLY(tmp3, FIX_0_298631336); /* -c1+c3+c5-c7 */ + tmp10 = MULTIPLY(tmp10, - FIX_0_899976223); /* c7-c3 */ + tmp11 = MULTIPLY(tmp11, - FIX_2_562915447); /* -c1-c3 */ + tmp12 = MULTIPLY(tmp12, - FIX_0_390180644); /* c5-c3 */ + tmp13 = MULTIPLY(tmp13, - FIX_1_961570560); /* -c3-c5 */ + + tmp12 += z1; + tmp13 += z1; + + dataptr[1] = (DCTELEM) + RIGHT_SHIFT(tmp0 + tmp10 + tmp12, CONST_BITS-PASS1_BITS); + dataptr[3] = (DCTELEM) + RIGHT_SHIFT(tmp1 + tmp11 + tmp13, CONST_BITS-PASS1_BITS); + dataptr[5] = (DCTELEM) + RIGHT_SHIFT(tmp2 + tmp11 + tmp12, CONST_BITS-PASS1_BITS); + dataptr[7] = (DCTELEM) + RIGHT_SHIFT(tmp3 + tmp10 + tmp13, CONST_BITS-PASS1_BITS); + + dataptr += DCTSIZE; /* advance pointer to next row */ + } + + /* Pass 2: process columns. + * We remove the PASS1_BITS scaling, but leave the results scaled up + * by an overall factor of 8. + */ + + dataptr = data; + for (ctr = DCTSIZE-1; ctr >= 0; ctr--) { + /* Even part per LL&M figure 1 --- note that published figure is faulty; + * rotator "sqrt(2)*c1" should be "sqrt(2)*c6". + */ + + tmp0 = dataptr[DCTSIZE*0] + dataptr[DCTSIZE*7]; + tmp1 = dataptr[DCTSIZE*1] + dataptr[DCTSIZE*6]; + tmp2 = dataptr[DCTSIZE*2] + dataptr[DCTSIZE*5]; + tmp3 = dataptr[DCTSIZE*3] + dataptr[DCTSIZE*4]; + + /* Add fudge factor here for final descale. */ + tmp10 = tmp0 + tmp3 + (ONE << (PASS1_BITS-1)); + tmp12 = tmp0 - tmp3; + tmp11 = tmp1 + tmp2; + tmp13 = tmp1 - tmp2; + + tmp0 = dataptr[DCTSIZE*0] - dataptr[DCTSIZE*7]; + tmp1 = dataptr[DCTSIZE*1] - dataptr[DCTSIZE*6]; + tmp2 = dataptr[DCTSIZE*2] - dataptr[DCTSIZE*5]; + tmp3 = dataptr[DCTSIZE*3] - dataptr[DCTSIZE*4]; + + dataptr[DCTSIZE*0] = (DCTELEM) RIGHT_SHIFT(tmp10 + tmp11, PASS1_BITS); + dataptr[DCTSIZE*4] = (DCTELEM) RIGHT_SHIFT(tmp10 - tmp11, PASS1_BITS); + + z1 = MULTIPLY(tmp12 + tmp13, FIX_0_541196100); + /* Add fudge factor here for final descale. */ + z1 += ONE << (CONST_BITS+PASS1_BITS-1); + dataptr[DCTSIZE*2] = (DCTELEM) + RIGHT_SHIFT(z1 + MULTIPLY(tmp12, FIX_0_765366865), CONST_BITS+PASS1_BITS); + dataptr[DCTSIZE*6] = (DCTELEM) + RIGHT_SHIFT(z1 - MULTIPLY(tmp13, FIX_1_847759065), CONST_BITS+PASS1_BITS); + + /* Odd part per figure 8 --- note paper omits factor of sqrt(2). + * cK represents sqrt(2) * cos(K*pi/16). + * i0..i3 in the paper are tmp0..tmp3 here. + */ + + tmp10 = tmp0 + tmp3; + tmp11 = tmp1 + tmp2; + tmp12 = tmp0 + tmp2; + tmp13 = tmp1 + tmp3; + z1 = MULTIPLY(tmp12 + tmp13, FIX_1_175875602); /* c3 */ + /* Add fudge factor here for final descale. */ + z1 += ONE << (CONST_BITS+PASS1_BITS-1); + + tmp0 = MULTIPLY(tmp0, FIX_1_501321110); /* c1+c3-c5-c7 */ + tmp1 = MULTIPLY(tmp1, FIX_3_072711026); /* c1+c3+c5-c7 */ + tmp2 = MULTIPLY(tmp2, FIX_2_053119869); /* c1+c3-c5+c7 */ + tmp3 = MULTIPLY(tmp3, FIX_0_298631336); /* -c1+c3+c5-c7 */ + tmp10 = MULTIPLY(tmp10, - FIX_0_899976223); /* c7-c3 */ + tmp11 = MULTIPLY(tmp11, - FIX_2_562915447); /* -c1-c3 */ + tmp12 = MULTIPLY(tmp12, - FIX_0_390180644); /* c5-c3 */ + tmp13 = MULTIPLY(tmp13, - FIX_1_961570560); /* -c3-c5 */ + + tmp12 += z1; + tmp13 += z1; + + dataptr[DCTSIZE*1] = (DCTELEM) + RIGHT_SHIFT(tmp0 + tmp10 + tmp12, CONST_BITS+PASS1_BITS); + dataptr[DCTSIZE*3] = (DCTELEM) + RIGHT_SHIFT(tmp1 + tmp11 + tmp13, CONST_BITS+PASS1_BITS); + dataptr[DCTSIZE*5] = (DCTELEM) + RIGHT_SHIFT(tmp2 + tmp11 + tmp12, CONST_BITS+PASS1_BITS); + dataptr[DCTSIZE*7] = (DCTELEM) + RIGHT_SHIFT(tmp3 + tmp10 + tmp13, CONST_BITS+PASS1_BITS); + + dataptr++; /* advance pointer to next column */ + } +} + +#ifdef DCT_SCALING_SUPPORTED + + +/* + * Perform the forward DCT on a 7x7 sample block. + */ + +GLOBAL(void) +jpeg_fdct_7x7 (DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col) +{ + INT32 tmp0, tmp1, tmp2, tmp3; + INT32 tmp10, tmp11, tmp12; + INT32 z1, z2, z3; + DCTELEM *dataptr; + JSAMPROW elemptr; + int ctr; + SHIFT_TEMPS + + /* Pre-zero output coefficient block. */ + MEMZERO(data, SIZEOF(DCTELEM) * DCTSIZE2); + + /* Pass 1: process rows. */ + /* Note results are scaled up by sqrt(8) compared to a true DCT; */ + /* furthermore, we scale the results by 2**PASS1_BITS. */ + /* cK represents sqrt(2) * cos(K*pi/14). */ + + dataptr = data; + for (ctr = 0; ctr < 7; ctr++) { + elemptr = sample_data[ctr] + start_col; + + /* Even part */ + + tmp0 = GETJSAMPLE(elemptr[0]) + GETJSAMPLE(elemptr[6]); + tmp1 = GETJSAMPLE(elemptr[1]) + GETJSAMPLE(elemptr[5]); + tmp2 = GETJSAMPLE(elemptr[2]) + GETJSAMPLE(elemptr[4]); + tmp3 = GETJSAMPLE(elemptr[3]); + + tmp10 = GETJSAMPLE(elemptr[0]) - GETJSAMPLE(elemptr[6]); + tmp11 = GETJSAMPLE(elemptr[1]) - GETJSAMPLE(elemptr[5]); + tmp12 = GETJSAMPLE(elemptr[2]) - GETJSAMPLE(elemptr[4]); + + z1 = tmp0 + tmp2; + /* Apply unsigned->signed conversion */ + dataptr[0] = (DCTELEM) + ((z1 + tmp1 + tmp3 - 7 * CENTERJSAMPLE) << PASS1_BITS); + tmp3 += tmp3; + z1 -= tmp3; + z1 -= tmp3; + z1 = MULTIPLY(z1, FIX(0.353553391)); /* (c2+c6-c4)/2 */ + z2 = MULTIPLY(tmp0 - tmp2, FIX(0.920609002)); /* (c2+c4-c6)/2 */ + z3 = MULTIPLY(tmp1 - tmp2, FIX(0.314692123)); /* c6 */ + dataptr[2] = (DCTELEM) DESCALE(z1 + z2 + z3, CONST_BITS-PASS1_BITS); + z1 -= z2; + z2 = MULTIPLY(tmp0 - tmp1, FIX(0.881747734)); /* c4 */ + dataptr[4] = (DCTELEM) + DESCALE(z2 + z3 - MULTIPLY(tmp1 - tmp3, FIX(0.707106781)), /* c2+c6-c4 */ + CONST_BITS-PASS1_BITS); + dataptr[6] = (DCTELEM) DESCALE(z1 + z2, CONST_BITS-PASS1_BITS); + + /* Odd part */ + + tmp1 = MULTIPLY(tmp10 + tmp11, FIX(0.935414347)); /* (c3+c1-c5)/2 */ + tmp2 = MULTIPLY(tmp10 - tmp11, FIX(0.170262339)); /* (c3+c5-c1)/2 */ + tmp0 = tmp1 - tmp2; + tmp1 += tmp2; + tmp2 = MULTIPLY(tmp11 + tmp12, - FIX(1.378756276)); /* -c1 */ + tmp1 += tmp2; + tmp3 = MULTIPLY(tmp10 + tmp12, FIX(0.613604268)); /* c5 */ + tmp0 += tmp3; + tmp2 += tmp3 + MULTIPLY(tmp12, FIX(1.870828693)); /* c3+c1-c5 */ + + dataptr[1] = (DCTELEM) DESCALE(tmp0, CONST_BITS-PASS1_BITS); + dataptr[3] = (DCTELEM) DESCALE(tmp1, CONST_BITS-PASS1_BITS); + dataptr[5] = (DCTELEM) DESCALE(tmp2, CONST_BITS-PASS1_BITS); + + dataptr += DCTSIZE; /* advance pointer to next row */ + } + + /* Pass 2: process columns. + * We remove the PASS1_BITS scaling, but leave the results scaled up + * by an overall factor of 8. + * We must also scale the output by (8/7)**2 = 64/49, which we fold + * into the constant multipliers: + * cK now represents sqrt(2) * cos(K*pi/14) * 64/49. + */ + + dataptr = data; + for (ctr = 0; ctr < 7; ctr++) { + /* Even part */ + + tmp0 = dataptr[DCTSIZE*0] + dataptr[DCTSIZE*6]; + tmp1 = dataptr[DCTSIZE*1] + dataptr[DCTSIZE*5]; + tmp2 = dataptr[DCTSIZE*2] + dataptr[DCTSIZE*4]; + tmp3 = dataptr[DCTSIZE*3]; + + tmp10 = dataptr[DCTSIZE*0] - dataptr[DCTSIZE*6]; + tmp11 = dataptr[DCTSIZE*1] - dataptr[DCTSIZE*5]; + tmp12 = dataptr[DCTSIZE*2] - dataptr[DCTSIZE*4]; + + z1 = tmp0 + tmp2; + dataptr[DCTSIZE*0] = (DCTELEM) + DESCALE(MULTIPLY(z1 + tmp1 + tmp3, FIX(1.306122449)), /* 64/49 */ + CONST_BITS+PASS1_BITS); + tmp3 += tmp3; + z1 -= tmp3; + z1 -= tmp3; + z1 = MULTIPLY(z1, FIX(0.461784020)); /* (c2+c6-c4)/2 */ + z2 = MULTIPLY(tmp0 - tmp2, FIX(1.202428084)); /* (c2+c4-c6)/2 */ + z3 = MULTIPLY(tmp1 - tmp2, FIX(0.411026446)); /* c6 */ + dataptr[DCTSIZE*2] = (DCTELEM) DESCALE(z1 + z2 + z3, CONST_BITS+PASS1_BITS); + z1 -= z2; + z2 = MULTIPLY(tmp0 - tmp1, FIX(1.151670509)); /* c4 */ + dataptr[DCTSIZE*4] = (DCTELEM) + DESCALE(z2 + z3 - MULTIPLY(tmp1 - tmp3, FIX(0.923568041)), /* c2+c6-c4 */ + CONST_BITS+PASS1_BITS); + dataptr[DCTSIZE*6] = (DCTELEM) DESCALE(z1 + z2, CONST_BITS+PASS1_BITS); + + /* Odd part */ + + tmp1 = MULTIPLY(tmp10 + tmp11, FIX(1.221765677)); /* (c3+c1-c5)/2 */ + tmp2 = MULTIPLY(tmp10 - tmp11, FIX(0.222383464)); /* (c3+c5-c1)/2 */ + tmp0 = tmp1 - tmp2; + tmp1 += tmp2; + tmp2 = MULTIPLY(tmp11 + tmp12, - FIX(1.800824523)); /* -c1 */ + tmp1 += tmp2; + tmp3 = MULTIPLY(tmp10 + tmp12, FIX(0.801442310)); /* c5 */ + tmp0 += tmp3; + tmp2 += tmp3 + MULTIPLY(tmp12, FIX(2.443531355)); /* c3+c1-c5 */ + + dataptr[DCTSIZE*1] = (DCTELEM) DESCALE(tmp0, CONST_BITS+PASS1_BITS); + dataptr[DCTSIZE*3] = (DCTELEM) DESCALE(tmp1, CONST_BITS+PASS1_BITS); + dataptr[DCTSIZE*5] = (DCTELEM) DESCALE(tmp2, CONST_BITS+PASS1_BITS); + + dataptr++; /* advance pointer to next column */ + } +} + + +/* + * Perform the forward DCT on a 6x6 sample block. + */ + +GLOBAL(void) +jpeg_fdct_6x6 (DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col) +{ + INT32 tmp0, tmp1, tmp2; + INT32 tmp10, tmp11, tmp12; + DCTELEM *dataptr; + JSAMPROW elemptr; + int ctr; + SHIFT_TEMPS + + /* Pre-zero output coefficient block. */ + MEMZERO(data, SIZEOF(DCTELEM) * DCTSIZE2); + + /* Pass 1: process rows. */ + /* Note results are scaled up by sqrt(8) compared to a true DCT; */ + /* furthermore, we scale the results by 2**PASS1_BITS. */ + /* cK represents sqrt(2) * cos(K*pi/12). */ + + dataptr = data; + for (ctr = 0; ctr < 6; ctr++) { + elemptr = sample_data[ctr] + start_col; + + /* Even part */ + + tmp0 = GETJSAMPLE(elemptr[0]) + GETJSAMPLE(elemptr[5]); + tmp11 = GETJSAMPLE(elemptr[1]) + GETJSAMPLE(elemptr[4]); + tmp2 = GETJSAMPLE(elemptr[2]) + GETJSAMPLE(elemptr[3]); + + tmp10 = tmp0 + tmp2; + tmp12 = tmp0 - tmp2; + + tmp0 = GETJSAMPLE(elemptr[0]) - GETJSAMPLE(elemptr[5]); + tmp1 = GETJSAMPLE(elemptr[1]) - GETJSAMPLE(elemptr[4]); + tmp2 = GETJSAMPLE(elemptr[2]) - GETJSAMPLE(elemptr[3]); + + /* Apply unsigned->signed conversion */ + dataptr[0] = (DCTELEM) + ((tmp10 + tmp11 - 6 * CENTERJSAMPLE) << PASS1_BITS); + dataptr[2] = (DCTELEM) + DESCALE(MULTIPLY(tmp12, FIX(1.224744871)), /* c2 */ + CONST_BITS-PASS1_BITS); + dataptr[4] = (DCTELEM) + DESCALE(MULTIPLY(tmp10 - tmp11 - tmp11, FIX(0.707106781)), /* c4 */ + CONST_BITS-PASS1_BITS); + + /* Odd part */ + + tmp10 = DESCALE(MULTIPLY(tmp0 + tmp2, FIX(0.366025404)), /* c5 */ + CONST_BITS-PASS1_BITS); + + dataptr[1] = (DCTELEM) (tmp10 + ((tmp0 + tmp1) << PASS1_BITS)); + dataptr[3] = (DCTELEM) ((tmp0 - tmp1 - tmp2) << PASS1_BITS); + dataptr[5] = (DCTELEM) (tmp10 + ((tmp2 - tmp1) << PASS1_BITS)); + + dataptr += DCTSIZE; /* advance pointer to next row */ + } + + /* Pass 2: process columns. + * We remove the PASS1_BITS scaling, but leave the results scaled up + * by an overall factor of 8. + * We must also scale the output by (8/6)**2 = 16/9, which we fold + * into the constant multipliers: + * cK now represents sqrt(2) * cos(K*pi/12) * 16/9. + */ + + dataptr = data; + for (ctr = 0; ctr < 6; ctr++) { + /* Even part */ + + tmp0 = dataptr[DCTSIZE*0] + dataptr[DCTSIZE*5]; + tmp11 = dataptr[DCTSIZE*1] + dataptr[DCTSIZE*4]; + tmp2 = dataptr[DCTSIZE*2] + dataptr[DCTSIZE*3]; + + tmp10 = tmp0 + tmp2; + tmp12 = tmp0 - tmp2; + + tmp0 = dataptr[DCTSIZE*0] - dataptr[DCTSIZE*5]; + tmp1 = dataptr[DCTSIZE*1] - dataptr[DCTSIZE*4]; + tmp2 = dataptr[DCTSIZE*2] - dataptr[DCTSIZE*3]; + + dataptr[DCTSIZE*0] = (DCTELEM) + DESCALE(MULTIPLY(tmp10 + tmp11, FIX(1.777777778)), /* 16/9 */ + CONST_BITS+PASS1_BITS); + dataptr[DCTSIZE*2] = (DCTELEM) + DESCALE(MULTIPLY(tmp12, FIX(2.177324216)), /* c2 */ + CONST_BITS+PASS1_BITS); + dataptr[DCTSIZE*4] = (DCTELEM) + DESCALE(MULTIPLY(tmp10 - tmp11 - tmp11, FIX(1.257078722)), /* c4 */ + CONST_BITS+PASS1_BITS); + + /* Odd part */ + + tmp10 = MULTIPLY(tmp0 + tmp2, FIX(0.650711829)); /* c5 */ + + dataptr[DCTSIZE*1] = (DCTELEM) + DESCALE(tmp10 + MULTIPLY(tmp0 + tmp1, FIX(1.777777778)), /* 16/9 */ + CONST_BITS+PASS1_BITS); + dataptr[DCTSIZE*3] = (DCTELEM) + DESCALE(MULTIPLY(tmp0 - tmp1 - tmp2, FIX(1.777777778)), /* 16/9 */ + CONST_BITS+PASS1_BITS); + dataptr[DCTSIZE*5] = (DCTELEM) + DESCALE(tmp10 + MULTIPLY(tmp2 - tmp1, FIX(1.777777778)), /* 16/9 */ + CONST_BITS+PASS1_BITS); + + dataptr++; /* advance pointer to next column */ + } +} + + +/* + * Perform the forward DCT on a 5x5 sample block. + */ + +GLOBAL(void) +jpeg_fdct_5x5 (DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col) +{ + INT32 tmp0, tmp1, tmp2; + INT32 tmp10, tmp11; + DCTELEM *dataptr; + JSAMPROW elemptr; + int ctr; + SHIFT_TEMPS + + /* Pre-zero output coefficient block. */ + MEMZERO(data, SIZEOF(DCTELEM) * DCTSIZE2); + + /* Pass 1: process rows. */ + /* Note results are scaled up by sqrt(8) compared to a true DCT; */ + /* furthermore, we scale the results by 2**PASS1_BITS. */ + /* We scale the results further by 2 as part of output adaption */ + /* scaling for different DCT size. */ + /* cK represents sqrt(2) * cos(K*pi/10). */ + + dataptr = data; + for (ctr = 0; ctr < 5; ctr++) { + elemptr = sample_data[ctr] + start_col; + + /* Even part */ + + tmp0 = GETJSAMPLE(elemptr[0]) + GETJSAMPLE(elemptr[4]); + tmp1 = GETJSAMPLE(elemptr[1]) + GETJSAMPLE(elemptr[3]); + tmp2 = GETJSAMPLE(elemptr[2]); + + tmp10 = tmp0 + tmp1; + tmp11 = tmp0 - tmp1; + + tmp0 = GETJSAMPLE(elemptr[0]) - GETJSAMPLE(elemptr[4]); + tmp1 = GETJSAMPLE(elemptr[1]) - GETJSAMPLE(elemptr[3]); + + /* Apply unsigned->signed conversion */ + dataptr[0] = (DCTELEM) + ((tmp10 + tmp2 - 5 * CENTERJSAMPLE) << (PASS1_BITS+1)); + tmp11 = MULTIPLY(tmp11, FIX(0.790569415)); /* (c2+c4)/2 */ + tmp10 -= tmp2 << 2; + tmp10 = MULTIPLY(tmp10, FIX(0.353553391)); /* (c2-c4)/2 */ + dataptr[2] = (DCTELEM) DESCALE(tmp11 + tmp10, CONST_BITS-PASS1_BITS-1); + dataptr[4] = (DCTELEM) DESCALE(tmp11 - tmp10, CONST_BITS-PASS1_BITS-1); + + /* Odd part */ + + tmp10 = MULTIPLY(tmp0 + tmp1, FIX(0.831253876)); /* c3 */ + + dataptr[1] = (DCTELEM) + DESCALE(tmp10 + MULTIPLY(tmp0, FIX(0.513743148)), /* c1-c3 */ + CONST_BITS-PASS1_BITS-1); + dataptr[3] = (DCTELEM) + DESCALE(tmp10 - MULTIPLY(tmp1, FIX(2.176250899)), /* c1+c3 */ + CONST_BITS-PASS1_BITS-1); + + dataptr += DCTSIZE; /* advance pointer to next row */ + } + + /* Pass 2: process columns. + * We remove the PASS1_BITS scaling, but leave the results scaled up + * by an overall factor of 8. + * We must also scale the output by (8/5)**2 = 64/25, which we partially + * fold into the constant multipliers (other part was done in pass 1): + * cK now represents sqrt(2) * cos(K*pi/10) * 32/25. + */ + + dataptr = data; + for (ctr = 0; ctr < 5; ctr++) { + /* Even part */ + + tmp0 = dataptr[DCTSIZE*0] + dataptr[DCTSIZE*4]; + tmp1 = dataptr[DCTSIZE*1] + dataptr[DCTSIZE*3]; + tmp2 = dataptr[DCTSIZE*2]; + + tmp10 = tmp0 + tmp1; + tmp11 = tmp0 - tmp1; + + tmp0 = dataptr[DCTSIZE*0] - dataptr[DCTSIZE*4]; + tmp1 = dataptr[DCTSIZE*1] - dataptr[DCTSIZE*3]; + + dataptr[DCTSIZE*0] = (DCTELEM) + DESCALE(MULTIPLY(tmp10 + tmp2, FIX(1.28)), /* 32/25 */ + CONST_BITS+PASS1_BITS); + tmp11 = MULTIPLY(tmp11, FIX(1.011928851)); /* (c2+c4)/2 */ + tmp10 -= tmp2 << 2; + tmp10 = MULTIPLY(tmp10, FIX(0.452548340)); /* (c2-c4)/2 */ + dataptr[DCTSIZE*2] = (DCTELEM) DESCALE(tmp11 + tmp10, CONST_BITS+PASS1_BITS); + dataptr[DCTSIZE*4] = (DCTELEM) DESCALE(tmp11 - tmp10, CONST_BITS+PASS1_BITS); + + /* Odd part */ + + tmp10 = MULTIPLY(tmp0 + tmp1, FIX(1.064004961)); /* c3 */ + + dataptr[DCTSIZE*1] = (DCTELEM) + DESCALE(tmp10 + MULTIPLY(tmp0, FIX(0.657591230)), /* c1-c3 */ + CONST_BITS+PASS1_BITS); + dataptr[DCTSIZE*3] = (DCTELEM) + DESCALE(tmp10 - MULTIPLY(tmp1, FIX(2.785601151)), /* c1+c3 */ + CONST_BITS+PASS1_BITS); + + dataptr++; /* advance pointer to next column */ + } +} + + +/* + * Perform the forward DCT on a 4x4 sample block. + */ + +GLOBAL(void) +jpeg_fdct_4x4 (DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col) +{ + INT32 tmp0, tmp1; + INT32 tmp10, tmp11; + DCTELEM *dataptr; + JSAMPROW elemptr; + int ctr; + SHIFT_TEMPS + + /* Pre-zero output coefficient block. */ + MEMZERO(data, SIZEOF(DCTELEM) * DCTSIZE2); + + /* Pass 1: process rows. */ + /* Note results are scaled up by sqrt(8) compared to a true DCT; */ + /* furthermore, we scale the results by 2**PASS1_BITS. */ + /* We must also scale the output by (8/4)**2 = 2**2, which we add here. */ + /* cK represents sqrt(2) * cos(K*pi/16) [refers to 8-point FDCT]. */ + + dataptr = data; + for (ctr = 0; ctr < 4; ctr++) { + elemptr = sample_data[ctr] + start_col; + + /* Even part */ + + tmp0 = GETJSAMPLE(elemptr[0]) + GETJSAMPLE(elemptr[3]); + tmp1 = GETJSAMPLE(elemptr[1]) + GETJSAMPLE(elemptr[2]); + + tmp10 = GETJSAMPLE(elemptr[0]) - GETJSAMPLE(elemptr[3]); + tmp11 = GETJSAMPLE(elemptr[1]) - GETJSAMPLE(elemptr[2]); + + /* Apply unsigned->signed conversion */ + dataptr[0] = (DCTELEM) + ((tmp0 + tmp1 - 4 * CENTERJSAMPLE) << (PASS1_BITS+2)); + dataptr[2] = (DCTELEM) ((tmp0 - tmp1) << (PASS1_BITS+2)); + + /* Odd part */ + + tmp0 = MULTIPLY(tmp10 + tmp11, FIX_0_541196100); /* c6 */ + /* Add fudge factor here for final descale. */ + tmp0 += ONE << (CONST_BITS-PASS1_BITS-3); + + dataptr[1] = (DCTELEM) + RIGHT_SHIFT(tmp0 + MULTIPLY(tmp10, FIX_0_765366865), /* c2-c6 */ + CONST_BITS-PASS1_BITS-2); + dataptr[3] = (DCTELEM) + RIGHT_SHIFT(tmp0 - MULTIPLY(tmp11, FIX_1_847759065), /* c2+c6 */ + CONST_BITS-PASS1_BITS-2); + + dataptr += DCTSIZE; /* advance pointer to next row */ + } + + /* Pass 2: process columns. + * We remove the PASS1_BITS scaling, but leave the results scaled up + * by an overall factor of 8. + */ + + dataptr = data; + for (ctr = 0; ctr < 4; ctr++) { + /* Even part */ + + /* Add fudge factor here for final descale. */ + tmp0 = dataptr[DCTSIZE*0] + dataptr[DCTSIZE*3] + (ONE << (PASS1_BITS-1)); + tmp1 = dataptr[DCTSIZE*1] + dataptr[DCTSIZE*2]; + + tmp10 = dataptr[DCTSIZE*0] - dataptr[DCTSIZE*3]; + tmp11 = dataptr[DCTSIZE*1] - dataptr[DCTSIZE*2]; + + dataptr[DCTSIZE*0] = (DCTELEM) RIGHT_SHIFT(tmp0 + tmp1, PASS1_BITS); + dataptr[DCTSIZE*2] = (DCTELEM) RIGHT_SHIFT(tmp0 - tmp1, PASS1_BITS); + + /* Odd part */ + + tmp0 = MULTIPLY(tmp10 + tmp11, FIX_0_541196100); /* c6 */ + /* Add fudge factor here for final descale. */ + tmp0 += ONE << (CONST_BITS+PASS1_BITS-1); + + dataptr[DCTSIZE*1] = (DCTELEM) + RIGHT_SHIFT(tmp0 + MULTIPLY(tmp10, FIX_0_765366865), /* c2-c6 */ + CONST_BITS+PASS1_BITS); + dataptr[DCTSIZE*3] = (DCTELEM) + RIGHT_SHIFT(tmp0 - MULTIPLY(tmp11, FIX_1_847759065), /* c2+c6 */ + CONST_BITS+PASS1_BITS); + + dataptr++; /* advance pointer to next column */ + } +} + + +/* + * Perform the forward DCT on a 3x3 sample block. + */ + +GLOBAL(void) +jpeg_fdct_3x3 (DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col) +{ + INT32 tmp0, tmp1, tmp2; + DCTELEM *dataptr; + JSAMPROW elemptr; + int ctr; + SHIFT_TEMPS + + /* Pre-zero output coefficient block. */ + MEMZERO(data, SIZEOF(DCTELEM) * DCTSIZE2); + + /* Pass 1: process rows. */ + /* Note results are scaled up by sqrt(8) compared to a true DCT; */ + /* furthermore, we scale the results by 2**PASS1_BITS. */ + /* We scale the results further by 2**2 as part of output adaption */ + /* scaling for different DCT size. */ + /* cK represents sqrt(2) * cos(K*pi/6). */ + + dataptr = data; + for (ctr = 0; ctr < 3; ctr++) { + elemptr = sample_data[ctr] + start_col; + + /* Even part */ + + tmp0 = GETJSAMPLE(elemptr[0]) + GETJSAMPLE(elemptr[2]); + tmp1 = GETJSAMPLE(elemptr[1]); + + tmp2 = GETJSAMPLE(elemptr[0]) - GETJSAMPLE(elemptr[2]); + + /* Apply unsigned->signed conversion */ + dataptr[0] = (DCTELEM) + ((tmp0 + tmp1 - 3 * CENTERJSAMPLE) << (PASS1_BITS+2)); + dataptr[2] = (DCTELEM) + DESCALE(MULTIPLY(tmp0 - tmp1 - tmp1, FIX(0.707106781)), /* c2 */ + CONST_BITS-PASS1_BITS-2); + + /* Odd part */ + + dataptr[1] = (DCTELEM) + DESCALE(MULTIPLY(tmp2, FIX(1.224744871)), /* c1 */ + CONST_BITS-PASS1_BITS-2); + + dataptr += DCTSIZE; /* advance pointer to next row */ + } + + /* Pass 2: process columns. + * We remove the PASS1_BITS scaling, but leave the results scaled up + * by an overall factor of 8. + * We must also scale the output by (8/3)**2 = 64/9, which we partially + * fold into the constant multipliers (other part was done in pass 1): + * cK now represents sqrt(2) * cos(K*pi/6) * 16/9. + */ + + dataptr = data; + for (ctr = 0; ctr < 3; ctr++) { + /* Even part */ + + tmp0 = dataptr[DCTSIZE*0] + dataptr[DCTSIZE*2]; + tmp1 = dataptr[DCTSIZE*1]; + + tmp2 = dataptr[DCTSIZE*0] - dataptr[DCTSIZE*2]; + + dataptr[DCTSIZE*0] = (DCTELEM) + DESCALE(MULTIPLY(tmp0 + tmp1, FIX(1.777777778)), /* 16/9 */ + CONST_BITS+PASS1_BITS); + dataptr[DCTSIZE*2] = (DCTELEM) + DESCALE(MULTIPLY(tmp0 - tmp1 - tmp1, FIX(1.257078722)), /* c2 */ + CONST_BITS+PASS1_BITS); + + /* Odd part */ + + dataptr[DCTSIZE*1] = (DCTELEM) + DESCALE(MULTIPLY(tmp2, FIX(2.177324216)), /* c1 */ + CONST_BITS+PASS1_BITS); + + dataptr++; /* advance pointer to next column */ + } +} + + +/* + * Perform the forward DCT on a 2x2 sample block. + */ + +GLOBAL(void) +jpeg_fdct_2x2 (DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col) +{ + INT32 tmp0, tmp1, tmp2, tmp3; + JSAMPROW elemptr; + + /* Pre-zero output coefficient block. */ + MEMZERO(data, SIZEOF(DCTELEM) * DCTSIZE2); + + /* Pass 1: process rows. */ + /* Note results are scaled up by sqrt(8) compared to a true DCT. */ + + /* Row 0 */ + elemptr = sample_data[0] + start_col; + + tmp0 = GETJSAMPLE(elemptr[0]) + GETJSAMPLE(elemptr[1]); + tmp1 = GETJSAMPLE(elemptr[0]) - GETJSAMPLE(elemptr[1]); + + /* Row 1 */ + elemptr = sample_data[1] + start_col; + + tmp2 = GETJSAMPLE(elemptr[0]) + GETJSAMPLE(elemptr[1]); + tmp3 = GETJSAMPLE(elemptr[0]) - GETJSAMPLE(elemptr[1]); + + /* Pass 2: process columns. + * We leave the results scaled up by an overall factor of 8. + * We must also scale the output by (8/2)**2 = 2**4. + */ + + /* Column 0 */ + /* Apply unsigned->signed conversion */ + data[DCTSIZE*0] = (DCTELEM) ((tmp0 + tmp2 - 4 * CENTERJSAMPLE) << 4); + data[DCTSIZE*1] = (DCTELEM) ((tmp0 - tmp2) << 4); + + /* Column 1 */ + data[DCTSIZE*0+1] = (DCTELEM) ((tmp1 + tmp3) << 4); + data[DCTSIZE*1+1] = (DCTELEM) ((tmp1 - tmp3) << 4); +} + + +/* + * Perform the forward DCT on a 1x1 sample block. + */ + +GLOBAL(void) +jpeg_fdct_1x1 (DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col) +{ + /* Pre-zero output coefficient block. */ + MEMZERO(data, SIZEOF(DCTELEM) * DCTSIZE2); + + /* We leave the result scaled up by an overall factor of 8. */ + /* We must also scale the output by (8/1)**2 = 2**6. */ + /* Apply unsigned->signed conversion */ + data[0] = (DCTELEM) + ((GETJSAMPLE(sample_data[0][start_col]) - CENTERJSAMPLE) << 6); +} + + +/* + * Perform the forward DCT on a 9x9 sample block. + */ + +GLOBAL(void) +jpeg_fdct_9x9 (DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col) +{ + INT32 tmp0, tmp1, tmp2, tmp3, tmp4; + INT32 tmp10, tmp11, tmp12, tmp13; + INT32 z1, z2; + DCTELEM workspace[8]; + DCTELEM *dataptr; + DCTELEM *wsptr; + JSAMPROW elemptr; + int ctr; + SHIFT_TEMPS + + /* Pass 1: process rows. */ + /* Note results are scaled up by sqrt(8) compared to a true DCT; */ + /* we scale the results further by 2 as part of output adaption */ + /* scaling for different DCT size. */ + /* cK represents sqrt(2) * cos(K*pi/18). */ + + dataptr = data; + ctr = 0; + for (;;) { + elemptr = sample_data[ctr] + start_col; + + /* Even part */ + + tmp0 = GETJSAMPLE(elemptr[0]) + GETJSAMPLE(elemptr[8]); + tmp1 = GETJSAMPLE(elemptr[1]) + GETJSAMPLE(elemptr[7]); + tmp2 = GETJSAMPLE(elemptr[2]) + GETJSAMPLE(elemptr[6]); + tmp3 = GETJSAMPLE(elemptr[3]) + GETJSAMPLE(elemptr[5]); + tmp4 = GETJSAMPLE(elemptr[4]); + + tmp10 = GETJSAMPLE(elemptr[0]) - GETJSAMPLE(elemptr[8]); + tmp11 = GETJSAMPLE(elemptr[1]) - GETJSAMPLE(elemptr[7]); + tmp12 = GETJSAMPLE(elemptr[2]) - GETJSAMPLE(elemptr[6]); + tmp13 = GETJSAMPLE(elemptr[3]) - GETJSAMPLE(elemptr[5]); + + z1 = tmp0 + tmp2 + tmp3; + z2 = tmp1 + tmp4; + /* Apply unsigned->signed conversion */ + dataptr[0] = (DCTELEM) ((z1 + z2 - 9 * CENTERJSAMPLE) << 1); + dataptr[6] = (DCTELEM) + DESCALE(MULTIPLY(z1 - z2 - z2, FIX(0.707106781)), /* c6 */ + CONST_BITS-1); + z1 = MULTIPLY(tmp0 - tmp2, FIX(1.328926049)); /* c2 */ + z2 = MULTIPLY(tmp1 - tmp4 - tmp4, FIX(0.707106781)); /* c6 */ + dataptr[2] = (DCTELEM) + DESCALE(MULTIPLY(tmp2 - tmp3, FIX(1.083350441)) /* c4 */ + + z1 + z2, CONST_BITS-1); + dataptr[4] = (DCTELEM) + DESCALE(MULTIPLY(tmp3 - tmp0, FIX(0.245575608)) /* c8 */ + + z1 - z2, CONST_BITS-1); + + /* Odd part */ + + dataptr[3] = (DCTELEM) + DESCALE(MULTIPLY(tmp10 - tmp12 - tmp13, FIX(1.224744871)), /* c3 */ + CONST_BITS-1); + + tmp11 = MULTIPLY(tmp11, FIX(1.224744871)); /* c3 */ + tmp0 = MULTIPLY(tmp10 + tmp12, FIX(0.909038955)); /* c5 */ + tmp1 = MULTIPLY(tmp10 + tmp13, FIX(0.483689525)); /* c7 */ + + dataptr[1] = (DCTELEM) DESCALE(tmp11 + tmp0 + tmp1, CONST_BITS-1); + + tmp2 = MULTIPLY(tmp12 - tmp13, FIX(1.392728481)); /* c1 */ + + dataptr[5] = (DCTELEM) DESCALE(tmp0 - tmp11 - tmp2, CONST_BITS-1); + dataptr[7] = (DCTELEM) DESCALE(tmp1 - tmp11 + tmp2, CONST_BITS-1); + + ctr++; + + if (ctr != DCTSIZE) { + if (ctr == 9) + break; /* Done. */ + dataptr += DCTSIZE; /* advance pointer to next row */ + } else + dataptr = workspace; /* switch pointer to extended workspace */ + } + + /* Pass 2: process columns. + * We leave the results scaled up by an overall factor of 8. + * We must also scale the output by (8/9)**2 = 64/81, which we partially + * fold into the constant multipliers and final/initial shifting: + * cK now represents sqrt(2) * cos(K*pi/18) * 128/81. + */ + + dataptr = data; + wsptr = workspace; + for (ctr = DCTSIZE-1; ctr >= 0; ctr--) { + /* Even part */ + + tmp0 = dataptr[DCTSIZE*0] + wsptr[DCTSIZE*0]; + tmp1 = dataptr[DCTSIZE*1] + dataptr[DCTSIZE*7]; + tmp2 = dataptr[DCTSIZE*2] + dataptr[DCTSIZE*6]; + tmp3 = dataptr[DCTSIZE*3] + dataptr[DCTSIZE*5]; + tmp4 = dataptr[DCTSIZE*4]; + + tmp10 = dataptr[DCTSIZE*0] - wsptr[DCTSIZE*0]; + tmp11 = dataptr[DCTSIZE*1] - dataptr[DCTSIZE*7]; + tmp12 = dataptr[DCTSIZE*2] - dataptr[DCTSIZE*6]; + tmp13 = dataptr[DCTSIZE*3] - dataptr[DCTSIZE*5]; + + z1 = tmp0 + tmp2 + tmp3; + z2 = tmp1 + tmp4; + dataptr[DCTSIZE*0] = (DCTELEM) + DESCALE(MULTIPLY(z1 + z2, FIX(1.580246914)), /* 128/81 */ + CONST_BITS+2); + dataptr[DCTSIZE*6] = (DCTELEM) + DESCALE(MULTIPLY(z1 - z2 - z2, FIX(1.117403309)), /* c6 */ + CONST_BITS+2); + z1 = MULTIPLY(tmp0 - tmp2, FIX(2.100031287)); /* c2 */ + z2 = MULTIPLY(tmp1 - tmp4 - tmp4, FIX(1.117403309)); /* c6 */ + dataptr[DCTSIZE*2] = (DCTELEM) + DESCALE(MULTIPLY(tmp2 - tmp3, FIX(1.711961190)) /* c4 */ + + z1 + z2, CONST_BITS+2); + dataptr[DCTSIZE*4] = (DCTELEM) + DESCALE(MULTIPLY(tmp3 - tmp0, FIX(0.388070096)) /* c8 */ + + z1 - z2, CONST_BITS+2); + + /* Odd part */ + + dataptr[DCTSIZE*3] = (DCTELEM) + DESCALE(MULTIPLY(tmp10 - tmp12 - tmp13, FIX(1.935399303)), /* c3 */ + CONST_BITS+2); + + tmp11 = MULTIPLY(tmp11, FIX(1.935399303)); /* c3 */ + tmp0 = MULTIPLY(tmp10 + tmp12, FIX(1.436506004)); /* c5 */ + tmp1 = MULTIPLY(tmp10 + tmp13, FIX(0.764348879)); /* c7 */ + + dataptr[DCTSIZE*1] = (DCTELEM) + DESCALE(tmp11 + tmp0 + tmp1, CONST_BITS+2); + + tmp2 = MULTIPLY(tmp12 - tmp13, FIX(2.200854883)); /* c1 */ + + dataptr[DCTSIZE*5] = (DCTELEM) + DESCALE(tmp0 - tmp11 - tmp2, CONST_BITS+2); + dataptr[DCTSIZE*7] = (DCTELEM) + DESCALE(tmp1 - tmp11 + tmp2, CONST_BITS+2); + + dataptr++; /* advance pointer to next column */ + wsptr++; /* advance pointer to next column */ + } +} + + +/* + * Perform the forward DCT on a 10x10 sample block. + */ + +GLOBAL(void) +jpeg_fdct_10x10 (DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col) +{ + INT32 tmp0, tmp1, tmp2, tmp3, tmp4; + INT32 tmp10, tmp11, tmp12, tmp13, tmp14; + DCTELEM workspace[8*2]; + DCTELEM *dataptr; + DCTELEM *wsptr; + JSAMPROW elemptr; + int ctr; + SHIFT_TEMPS + + /* Pass 1: process rows. */ + /* Note results are scaled up by sqrt(8) compared to a true DCT; */ + /* we scale the results further by 2 as part of output adaption */ + /* scaling for different DCT size. */ + /* cK represents sqrt(2) * cos(K*pi/20). */ + + dataptr = data; + ctr = 0; + for (;;) { + elemptr = sample_data[ctr] + start_col; + + /* Even part */ + + tmp0 = GETJSAMPLE(elemptr[0]) + GETJSAMPLE(elemptr[9]); + tmp1 = GETJSAMPLE(elemptr[1]) + GETJSAMPLE(elemptr[8]); + tmp12 = GETJSAMPLE(elemptr[2]) + GETJSAMPLE(elemptr[7]); + tmp3 = GETJSAMPLE(elemptr[3]) + GETJSAMPLE(elemptr[6]); + tmp4 = GETJSAMPLE(elemptr[4]) + GETJSAMPLE(elemptr[5]); + + tmp10 = tmp0 + tmp4; + tmp13 = tmp0 - tmp4; + tmp11 = tmp1 + tmp3; + tmp14 = tmp1 - tmp3; + + tmp0 = GETJSAMPLE(elemptr[0]) - GETJSAMPLE(elemptr[9]); + tmp1 = GETJSAMPLE(elemptr[1]) - GETJSAMPLE(elemptr[8]); + tmp2 = GETJSAMPLE(elemptr[2]) - GETJSAMPLE(elemptr[7]); + tmp3 = GETJSAMPLE(elemptr[3]) - GETJSAMPLE(elemptr[6]); + tmp4 = GETJSAMPLE(elemptr[4]) - GETJSAMPLE(elemptr[5]); + + /* Apply unsigned->signed conversion */ + dataptr[0] = (DCTELEM) + ((tmp10 + tmp11 + tmp12 - 10 * CENTERJSAMPLE) << 1); + tmp12 += tmp12; + dataptr[4] = (DCTELEM) + DESCALE(MULTIPLY(tmp10 - tmp12, FIX(1.144122806)) - /* c4 */ + MULTIPLY(tmp11 - tmp12, FIX(0.437016024)), /* c8 */ + CONST_BITS-1); + tmp10 = MULTIPLY(tmp13 + tmp14, FIX(0.831253876)); /* c6 */ + dataptr[2] = (DCTELEM) + DESCALE(tmp10 + MULTIPLY(tmp13, FIX(0.513743148)), /* c2-c6 */ + CONST_BITS-1); + dataptr[6] = (DCTELEM) + DESCALE(tmp10 - MULTIPLY(tmp14, FIX(2.176250899)), /* c2+c6 */ + CONST_BITS-1); + + /* Odd part */ + + tmp10 = tmp0 + tmp4; + tmp11 = tmp1 - tmp3; + dataptr[5] = (DCTELEM) ((tmp10 - tmp11 - tmp2) << 1); + tmp2 <<= CONST_BITS; + dataptr[1] = (DCTELEM) + DESCALE(MULTIPLY(tmp0, FIX(1.396802247)) + /* c1 */ + MULTIPLY(tmp1, FIX(1.260073511)) + tmp2 + /* c3 */ + MULTIPLY(tmp3, FIX(0.642039522)) + /* c7 */ + MULTIPLY(tmp4, FIX(0.221231742)), /* c9 */ + CONST_BITS-1); + tmp12 = MULTIPLY(tmp0 - tmp4, FIX(0.951056516)) - /* (c3+c7)/2 */ + MULTIPLY(tmp1 + tmp3, FIX(0.587785252)); /* (c1-c9)/2 */ + tmp13 = MULTIPLY(tmp10 + tmp11, FIX(0.309016994)) + /* (c3-c7)/2 */ + (tmp11 << (CONST_BITS - 1)) - tmp2; + dataptr[3] = (DCTELEM) DESCALE(tmp12 + tmp13, CONST_BITS-1); + dataptr[7] = (DCTELEM) DESCALE(tmp12 - tmp13, CONST_BITS-1); + + ctr++; + + if (ctr != DCTSIZE) { + if (ctr == 10) + break; /* Done. */ + dataptr += DCTSIZE; /* advance pointer to next row */ + } else + dataptr = workspace; /* switch pointer to extended workspace */ + } + + /* Pass 2: process columns. + * We leave the results scaled up by an overall factor of 8. + * We must also scale the output by (8/10)**2 = 16/25, which we partially + * fold into the constant multipliers and final/initial shifting: + * cK now represents sqrt(2) * cos(K*pi/20) * 32/25. + */ + + dataptr = data; + wsptr = workspace; + for (ctr = DCTSIZE-1; ctr >= 0; ctr--) { + /* Even part */ + + tmp0 = dataptr[DCTSIZE*0] + wsptr[DCTSIZE*1]; + tmp1 = dataptr[DCTSIZE*1] + wsptr[DCTSIZE*0]; + tmp12 = dataptr[DCTSIZE*2] + dataptr[DCTSIZE*7]; + tmp3 = dataptr[DCTSIZE*3] + dataptr[DCTSIZE*6]; + tmp4 = dataptr[DCTSIZE*4] + dataptr[DCTSIZE*5]; + + tmp10 = tmp0 + tmp4; + tmp13 = tmp0 - tmp4; + tmp11 = tmp1 + tmp3; + tmp14 = tmp1 - tmp3; + + tmp0 = dataptr[DCTSIZE*0] - wsptr[DCTSIZE*1]; + tmp1 = dataptr[DCTSIZE*1] - wsptr[DCTSIZE*0]; + tmp2 = dataptr[DCTSIZE*2] - dataptr[DCTSIZE*7]; + tmp3 = dataptr[DCTSIZE*3] - dataptr[DCTSIZE*6]; + tmp4 = dataptr[DCTSIZE*4] - dataptr[DCTSIZE*5]; + + dataptr[DCTSIZE*0] = (DCTELEM) + DESCALE(MULTIPLY(tmp10 + tmp11 + tmp12, FIX(1.28)), /* 32/25 */ + CONST_BITS+2); + tmp12 += tmp12; + dataptr[DCTSIZE*4] = (DCTELEM) + DESCALE(MULTIPLY(tmp10 - tmp12, FIX(1.464477191)) - /* c4 */ + MULTIPLY(tmp11 - tmp12, FIX(0.559380511)), /* c8 */ + CONST_BITS+2); + tmp10 = MULTIPLY(tmp13 + tmp14, FIX(1.064004961)); /* c6 */ + dataptr[DCTSIZE*2] = (DCTELEM) + DESCALE(tmp10 + MULTIPLY(tmp13, FIX(0.657591230)), /* c2-c6 */ + CONST_BITS+2); + dataptr[DCTSIZE*6] = (DCTELEM) + DESCALE(tmp10 - MULTIPLY(tmp14, FIX(2.785601151)), /* c2+c6 */ + CONST_BITS+2); + + /* Odd part */ + + tmp10 = tmp0 + tmp4; + tmp11 = tmp1 - tmp3; + dataptr[DCTSIZE*5] = (DCTELEM) + DESCALE(MULTIPLY(tmp10 - tmp11 - tmp2, FIX(1.28)), /* 32/25 */ + CONST_BITS+2); + tmp2 = MULTIPLY(tmp2, FIX(1.28)); /* 32/25 */ + dataptr[DCTSIZE*1] = (DCTELEM) + DESCALE(MULTIPLY(tmp0, FIX(1.787906876)) + /* c1 */ + MULTIPLY(tmp1, FIX(1.612894094)) + tmp2 + /* c3 */ + MULTIPLY(tmp3, FIX(0.821810588)) + /* c7 */ + MULTIPLY(tmp4, FIX(0.283176630)), /* c9 */ + CONST_BITS+2); + tmp12 = MULTIPLY(tmp0 - tmp4, FIX(1.217352341)) - /* (c3+c7)/2 */ + MULTIPLY(tmp1 + tmp3, FIX(0.752365123)); /* (c1-c9)/2 */ + tmp13 = MULTIPLY(tmp10 + tmp11, FIX(0.395541753)) + /* (c3-c7)/2 */ + MULTIPLY(tmp11, FIX(0.64)) - tmp2; /* 16/25 */ + dataptr[DCTSIZE*3] = (DCTELEM) DESCALE(tmp12 + tmp13, CONST_BITS+2); + dataptr[DCTSIZE*7] = (DCTELEM) DESCALE(tmp12 - tmp13, CONST_BITS+2); + + dataptr++; /* advance pointer to next column */ + wsptr++; /* advance pointer to next column */ + } +} + + +/* + * Perform the forward DCT on an 11x11 sample block. + */ + +GLOBAL(void) +jpeg_fdct_11x11 (DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col) +{ + INT32 tmp0, tmp1, tmp2, tmp3, tmp4, tmp5; + INT32 tmp10, tmp11, tmp12, tmp13, tmp14; + INT32 z1, z2, z3; + DCTELEM workspace[8*3]; + DCTELEM *dataptr; + DCTELEM *wsptr; + JSAMPROW elemptr; + int ctr; + SHIFT_TEMPS + + /* Pass 1: process rows. */ + /* Note results are scaled up by sqrt(8) compared to a true DCT; */ + /* we scale the results further by 2 as part of output adaption */ + /* scaling for different DCT size. */ + /* cK represents sqrt(2) * cos(K*pi/22). */ + + dataptr = data; + ctr = 0; + for (;;) { + elemptr = sample_data[ctr] + start_col; + + /* Even part */ + + tmp0 = GETJSAMPLE(elemptr[0]) + GETJSAMPLE(elemptr[10]); + tmp1 = GETJSAMPLE(elemptr[1]) + GETJSAMPLE(elemptr[9]); + tmp2 = GETJSAMPLE(elemptr[2]) + GETJSAMPLE(elemptr[8]); + tmp3 = GETJSAMPLE(elemptr[3]) + GETJSAMPLE(elemptr[7]); + tmp4 = GETJSAMPLE(elemptr[4]) + GETJSAMPLE(elemptr[6]); + tmp5 = GETJSAMPLE(elemptr[5]); + + tmp10 = GETJSAMPLE(elemptr[0]) - GETJSAMPLE(elemptr[10]); + tmp11 = GETJSAMPLE(elemptr[1]) - GETJSAMPLE(elemptr[9]); + tmp12 = GETJSAMPLE(elemptr[2]) - GETJSAMPLE(elemptr[8]); + tmp13 = GETJSAMPLE(elemptr[3]) - GETJSAMPLE(elemptr[7]); + tmp14 = GETJSAMPLE(elemptr[4]) - GETJSAMPLE(elemptr[6]); + + /* Apply unsigned->signed conversion */ + dataptr[0] = (DCTELEM) + ((tmp0 + tmp1 + tmp2 + tmp3 + tmp4 + tmp5 - 11 * CENTERJSAMPLE) << 1); + tmp5 += tmp5; + tmp0 -= tmp5; + tmp1 -= tmp5; + tmp2 -= tmp5; + tmp3 -= tmp5; + tmp4 -= tmp5; + z1 = MULTIPLY(tmp0 + tmp3, FIX(1.356927976)) + /* c2 */ + MULTIPLY(tmp2 + tmp4, FIX(0.201263574)); /* c10 */ + z2 = MULTIPLY(tmp1 - tmp3, FIX(0.926112931)); /* c6 */ + z3 = MULTIPLY(tmp0 - tmp1, FIX(1.189712156)); /* c4 */ + dataptr[2] = (DCTELEM) + DESCALE(z1 + z2 - MULTIPLY(tmp3, FIX(1.018300590)) /* c2+c8-c6 */ + - MULTIPLY(tmp4, FIX(1.390975730)), /* c4+c10 */ + CONST_BITS-1); + dataptr[4] = (DCTELEM) + DESCALE(z2 + z3 + MULTIPLY(tmp1, FIX(0.062335650)) /* c4-c6-c10 */ + - MULTIPLY(tmp2, FIX(1.356927976)) /* c2 */ + + MULTIPLY(tmp4, FIX(0.587485545)), /* c8 */ + CONST_BITS-1); + dataptr[6] = (DCTELEM) + DESCALE(z1 + z3 - MULTIPLY(tmp0, FIX(1.620527200)) /* c2+c4-c6 */ + - MULTIPLY(tmp2, FIX(0.788749120)), /* c8+c10 */ + CONST_BITS-1); + + /* Odd part */ + + tmp1 = MULTIPLY(tmp10 + tmp11, FIX(1.286413905)); /* c3 */ + tmp2 = MULTIPLY(tmp10 + tmp12, FIX(1.068791298)); /* c5 */ + tmp3 = MULTIPLY(tmp10 + tmp13, FIX(0.764581576)); /* c7 */ + tmp0 = tmp1 + tmp2 + tmp3 - MULTIPLY(tmp10, FIX(1.719967871)) /* c7+c5+c3-c1 */ + + MULTIPLY(tmp14, FIX(0.398430003)); /* c9 */ + tmp4 = MULTIPLY(tmp11 + tmp12, - FIX(0.764581576)); /* -c7 */ + tmp5 = MULTIPLY(tmp11 + tmp13, - FIX(1.399818907)); /* -c1 */ + tmp1 += tmp4 + tmp5 + MULTIPLY(tmp11, FIX(1.276416582)) /* c9+c7+c1-c3 */ + - MULTIPLY(tmp14, FIX(1.068791298)); /* c5 */ + tmp10 = MULTIPLY(tmp12 + tmp13, FIX(0.398430003)); /* c9 */ + tmp2 += tmp4 + tmp10 - MULTIPLY(tmp12, FIX(1.989053629)) /* c9+c5+c3-c7 */ + + MULTIPLY(tmp14, FIX(1.399818907)); /* c1 */ + tmp3 += tmp5 + tmp10 + MULTIPLY(tmp13, FIX(1.305598626)) /* c1+c5-c9-c7 */ + - MULTIPLY(tmp14, FIX(1.286413905)); /* c3 */ + + dataptr[1] = (DCTELEM) DESCALE(tmp0, CONST_BITS-1); + dataptr[3] = (DCTELEM) DESCALE(tmp1, CONST_BITS-1); + dataptr[5] = (DCTELEM) DESCALE(tmp2, CONST_BITS-1); + dataptr[7] = (DCTELEM) DESCALE(tmp3, CONST_BITS-1); + + ctr++; + + if (ctr != DCTSIZE) { + if (ctr == 11) + break; /* Done. */ + dataptr += DCTSIZE; /* advance pointer to next row */ + } else + dataptr = workspace; /* switch pointer to extended workspace */ + } + + /* Pass 2: process columns. + * We leave the results scaled up by an overall factor of 8. + * We must also scale the output by (8/11)**2 = 64/121, which we partially + * fold into the constant multipliers and final/initial shifting: + * cK now represents sqrt(2) * cos(K*pi/22) * 128/121. + */ + + dataptr = data; + wsptr = workspace; + for (ctr = DCTSIZE-1; ctr >= 0; ctr--) { + /* Even part */ + + tmp0 = dataptr[DCTSIZE*0] + wsptr[DCTSIZE*2]; + tmp1 = dataptr[DCTSIZE*1] + wsptr[DCTSIZE*1]; + tmp2 = dataptr[DCTSIZE*2] + wsptr[DCTSIZE*0]; + tmp3 = dataptr[DCTSIZE*3] + dataptr[DCTSIZE*7]; + tmp4 = dataptr[DCTSIZE*4] + dataptr[DCTSIZE*6]; + tmp5 = dataptr[DCTSIZE*5]; + + tmp10 = dataptr[DCTSIZE*0] - wsptr[DCTSIZE*2]; + tmp11 = dataptr[DCTSIZE*1] - wsptr[DCTSIZE*1]; + tmp12 = dataptr[DCTSIZE*2] - wsptr[DCTSIZE*0]; + tmp13 = dataptr[DCTSIZE*3] - dataptr[DCTSIZE*7]; + tmp14 = dataptr[DCTSIZE*4] - dataptr[DCTSIZE*6]; + + dataptr[DCTSIZE*0] = (DCTELEM) + DESCALE(MULTIPLY(tmp0 + tmp1 + tmp2 + tmp3 + tmp4 + tmp5, + FIX(1.057851240)), /* 128/121 */ + CONST_BITS+2); + tmp5 += tmp5; + tmp0 -= tmp5; + tmp1 -= tmp5; + tmp2 -= tmp5; + tmp3 -= tmp5; + tmp4 -= tmp5; + z1 = MULTIPLY(tmp0 + tmp3, FIX(1.435427942)) + /* c2 */ + MULTIPLY(tmp2 + tmp4, FIX(0.212906922)); /* c10 */ + z2 = MULTIPLY(tmp1 - tmp3, FIX(0.979689713)); /* c6 */ + z3 = MULTIPLY(tmp0 - tmp1, FIX(1.258538479)); /* c4 */ + dataptr[DCTSIZE*2] = (DCTELEM) + DESCALE(z1 + z2 - MULTIPLY(tmp3, FIX(1.077210542)) /* c2+c8-c6 */ + - MULTIPLY(tmp4, FIX(1.471445400)), /* c4+c10 */ + CONST_BITS+2); + dataptr[DCTSIZE*4] = (DCTELEM) + DESCALE(z2 + z3 + MULTIPLY(tmp1, FIX(0.065941844)) /* c4-c6-c10 */ + - MULTIPLY(tmp2, FIX(1.435427942)) /* c2 */ + + MULTIPLY(tmp4, FIX(0.621472312)), /* c8 */ + CONST_BITS+2); + dataptr[DCTSIZE*6] = (DCTELEM) + DESCALE(z1 + z3 - MULTIPLY(tmp0, FIX(1.714276708)) /* c2+c4-c6 */ + - MULTIPLY(tmp2, FIX(0.834379234)), /* c8+c10 */ + CONST_BITS+2); + + /* Odd part */ + + tmp1 = MULTIPLY(tmp10 + tmp11, FIX(1.360834544)); /* c3 */ + tmp2 = MULTIPLY(tmp10 + tmp12, FIX(1.130622199)); /* c5 */ + tmp3 = MULTIPLY(tmp10 + tmp13, FIX(0.808813568)); /* c7 */ + tmp0 = tmp1 + tmp2 + tmp3 - MULTIPLY(tmp10, FIX(1.819470145)) /* c7+c5+c3-c1 */ + + MULTIPLY(tmp14, FIX(0.421479672)); /* c9 */ + tmp4 = MULTIPLY(tmp11 + tmp12, - FIX(0.808813568)); /* -c7 */ + tmp5 = MULTIPLY(tmp11 + tmp13, - FIX(1.480800167)); /* -c1 */ + tmp1 += tmp4 + tmp5 + MULTIPLY(tmp11, FIX(1.350258864)) /* c9+c7+c1-c3 */ + - MULTIPLY(tmp14, FIX(1.130622199)); /* c5 */ + tmp10 = MULTIPLY(tmp12 + tmp13, FIX(0.421479672)); /* c9 */ + tmp2 += tmp4 + tmp10 - MULTIPLY(tmp12, FIX(2.104122847)) /* c9+c5+c3-c7 */ + + MULTIPLY(tmp14, FIX(1.480800167)); /* c1 */ + tmp3 += tmp5 + tmp10 + MULTIPLY(tmp13, FIX(1.381129125)) /* c1+c5-c9-c7 */ + - MULTIPLY(tmp14, FIX(1.360834544)); /* c3 */ + + dataptr[DCTSIZE*1] = (DCTELEM) DESCALE(tmp0, CONST_BITS+2); + dataptr[DCTSIZE*3] = (DCTELEM) DESCALE(tmp1, CONST_BITS+2); + dataptr[DCTSIZE*5] = (DCTELEM) DESCALE(tmp2, CONST_BITS+2); + dataptr[DCTSIZE*7] = (DCTELEM) DESCALE(tmp3, CONST_BITS+2); + + dataptr++; /* advance pointer to next column */ + wsptr++; /* advance pointer to next column */ + } +} + + +/* + * Perform the forward DCT on a 12x12 sample block. + */ + +GLOBAL(void) +jpeg_fdct_12x12 (DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col) +{ + INT32 tmp0, tmp1, tmp2, tmp3, tmp4, tmp5; + INT32 tmp10, tmp11, tmp12, tmp13, tmp14, tmp15; + DCTELEM workspace[8*4]; + DCTELEM *dataptr; + DCTELEM *wsptr; + JSAMPROW elemptr; + int ctr; + SHIFT_TEMPS + + /* Pass 1: process rows. */ + /* Note results are scaled up by sqrt(8) compared to a true DCT. */ + /* cK represents sqrt(2) * cos(K*pi/24). */ + + dataptr = data; + ctr = 0; + for (;;) { + elemptr = sample_data[ctr] + start_col; + + /* Even part */ + + tmp0 = GETJSAMPLE(elemptr[0]) + GETJSAMPLE(elemptr[11]); + tmp1 = GETJSAMPLE(elemptr[1]) + GETJSAMPLE(elemptr[10]); + tmp2 = GETJSAMPLE(elemptr[2]) + GETJSAMPLE(elemptr[9]); + tmp3 = GETJSAMPLE(elemptr[3]) + GETJSAMPLE(elemptr[8]); + tmp4 = GETJSAMPLE(elemptr[4]) + GETJSAMPLE(elemptr[7]); + tmp5 = GETJSAMPLE(elemptr[5]) + GETJSAMPLE(elemptr[6]); + + tmp10 = tmp0 + tmp5; + tmp13 = tmp0 - tmp5; + tmp11 = tmp1 + tmp4; + tmp14 = tmp1 - tmp4; + tmp12 = tmp2 + tmp3; + tmp15 = tmp2 - tmp3; + + tmp0 = GETJSAMPLE(elemptr[0]) - GETJSAMPLE(elemptr[11]); + tmp1 = GETJSAMPLE(elemptr[1]) - GETJSAMPLE(elemptr[10]); + tmp2 = GETJSAMPLE(elemptr[2]) - GETJSAMPLE(elemptr[9]); + tmp3 = GETJSAMPLE(elemptr[3]) - GETJSAMPLE(elemptr[8]); + tmp4 = GETJSAMPLE(elemptr[4]) - GETJSAMPLE(elemptr[7]); + tmp5 = GETJSAMPLE(elemptr[5]) - GETJSAMPLE(elemptr[6]); + + /* Apply unsigned->signed conversion */ + dataptr[0] = (DCTELEM) (tmp10 + tmp11 + tmp12 - 12 * CENTERJSAMPLE); + dataptr[6] = (DCTELEM) (tmp13 - tmp14 - tmp15); + dataptr[4] = (DCTELEM) + DESCALE(MULTIPLY(tmp10 - tmp12, FIX(1.224744871)), /* c4 */ + CONST_BITS); + dataptr[2] = (DCTELEM) + DESCALE(tmp14 - tmp15 + MULTIPLY(tmp13 + tmp15, FIX(1.366025404)), /* c2 */ + CONST_BITS); + + /* Odd part */ + + tmp10 = MULTIPLY(tmp1 + tmp4, FIX_0_541196100); /* c9 */ + tmp14 = tmp10 + MULTIPLY(tmp1, FIX_0_765366865); /* c3-c9 */ + tmp15 = tmp10 - MULTIPLY(tmp4, FIX_1_847759065); /* c3+c9 */ + tmp12 = MULTIPLY(tmp0 + tmp2, FIX(1.121971054)); /* c5 */ + tmp13 = MULTIPLY(tmp0 + tmp3, FIX(0.860918669)); /* c7 */ + tmp10 = tmp12 + tmp13 + tmp14 - MULTIPLY(tmp0, FIX(0.580774953)) /* c5+c7-c1 */ + + MULTIPLY(tmp5, FIX(0.184591911)); /* c11 */ + tmp11 = MULTIPLY(tmp2 + tmp3, - FIX(0.184591911)); /* -c11 */ + tmp12 += tmp11 - tmp15 - MULTIPLY(tmp2, FIX(2.339493912)) /* c1+c5-c11 */ + + MULTIPLY(tmp5, FIX(0.860918669)); /* c7 */ + tmp13 += tmp11 - tmp14 + MULTIPLY(tmp3, FIX(0.725788011)) /* c1+c11-c7 */ + - MULTIPLY(tmp5, FIX(1.121971054)); /* c5 */ + tmp11 = tmp15 + MULTIPLY(tmp0 - tmp3, FIX(1.306562965)) /* c3 */ + - MULTIPLY(tmp2 + tmp5, FIX_0_541196100); /* c9 */ + + dataptr[1] = (DCTELEM) DESCALE(tmp10, CONST_BITS); + dataptr[3] = (DCTELEM) DESCALE(tmp11, CONST_BITS); + dataptr[5] = (DCTELEM) DESCALE(tmp12, CONST_BITS); + dataptr[7] = (DCTELEM) DESCALE(tmp13, CONST_BITS); + + ctr++; + + if (ctr != DCTSIZE) { + if (ctr == 12) + break; /* Done. */ + dataptr += DCTSIZE; /* advance pointer to next row */ + } else + dataptr = workspace; /* switch pointer to extended workspace */ + } + + /* Pass 2: process columns. + * We leave the results scaled up by an overall factor of 8. + * We must also scale the output by (8/12)**2 = 4/9, which we partially + * fold into the constant multipliers and final shifting: + * cK now represents sqrt(2) * cos(K*pi/24) * 8/9. + */ + + dataptr = data; + wsptr = workspace; + for (ctr = DCTSIZE-1; ctr >= 0; ctr--) { + /* Even part */ + + tmp0 = dataptr[DCTSIZE*0] + wsptr[DCTSIZE*3]; + tmp1 = dataptr[DCTSIZE*1] + wsptr[DCTSIZE*2]; + tmp2 = dataptr[DCTSIZE*2] + wsptr[DCTSIZE*1]; + tmp3 = dataptr[DCTSIZE*3] + wsptr[DCTSIZE*0]; + tmp4 = dataptr[DCTSIZE*4] + dataptr[DCTSIZE*7]; + tmp5 = dataptr[DCTSIZE*5] + dataptr[DCTSIZE*6]; + + tmp10 = tmp0 + tmp5; + tmp13 = tmp0 - tmp5; + tmp11 = tmp1 + tmp4; + tmp14 = tmp1 - tmp4; + tmp12 = tmp2 + tmp3; + tmp15 = tmp2 - tmp3; + + tmp0 = dataptr[DCTSIZE*0] - wsptr[DCTSIZE*3]; + tmp1 = dataptr[DCTSIZE*1] - wsptr[DCTSIZE*2]; + tmp2 = dataptr[DCTSIZE*2] - wsptr[DCTSIZE*1]; + tmp3 = dataptr[DCTSIZE*3] - wsptr[DCTSIZE*0]; + tmp4 = dataptr[DCTSIZE*4] - dataptr[DCTSIZE*7]; + tmp5 = dataptr[DCTSIZE*5] - dataptr[DCTSIZE*6]; + + dataptr[DCTSIZE*0] = (DCTELEM) + DESCALE(MULTIPLY(tmp10 + tmp11 + tmp12, FIX(0.888888889)), /* 8/9 */ + CONST_BITS+1); + dataptr[DCTSIZE*6] = (DCTELEM) + DESCALE(MULTIPLY(tmp13 - tmp14 - tmp15, FIX(0.888888889)), /* 8/9 */ + CONST_BITS+1); + dataptr[DCTSIZE*4] = (DCTELEM) + DESCALE(MULTIPLY(tmp10 - tmp12, FIX(1.088662108)), /* c4 */ + CONST_BITS+1); + dataptr[DCTSIZE*2] = (DCTELEM) + DESCALE(MULTIPLY(tmp14 - tmp15, FIX(0.888888889)) + /* 8/9 */ + MULTIPLY(tmp13 + tmp15, FIX(1.214244803)), /* c2 */ + CONST_BITS+1); + + /* Odd part */ + + tmp10 = MULTIPLY(tmp1 + tmp4, FIX(0.481063200)); /* c9 */ + tmp14 = tmp10 + MULTIPLY(tmp1, FIX(0.680326102)); /* c3-c9 */ + tmp15 = tmp10 - MULTIPLY(tmp4, FIX(1.642452502)); /* c3+c9 */ + tmp12 = MULTIPLY(tmp0 + tmp2, FIX(0.997307603)); /* c5 */ + tmp13 = MULTIPLY(tmp0 + tmp3, FIX(0.765261039)); /* c7 */ + tmp10 = tmp12 + tmp13 + tmp14 - MULTIPLY(tmp0, FIX(0.516244403)) /* c5+c7-c1 */ + + MULTIPLY(tmp5, FIX(0.164081699)); /* c11 */ + tmp11 = MULTIPLY(tmp2 + tmp3, - FIX(0.164081699)); /* -c11 */ + tmp12 += tmp11 - tmp15 - MULTIPLY(tmp2, FIX(2.079550144)) /* c1+c5-c11 */ + + MULTIPLY(tmp5, FIX(0.765261039)); /* c7 */ + tmp13 += tmp11 - tmp14 + MULTIPLY(tmp3, FIX(0.645144899)) /* c1+c11-c7 */ + - MULTIPLY(tmp5, FIX(0.997307603)); /* c5 */ + tmp11 = tmp15 + MULTIPLY(tmp0 - tmp3, FIX(1.161389302)) /* c3 */ + - MULTIPLY(tmp2 + tmp5, FIX(0.481063200)); /* c9 */ + + dataptr[DCTSIZE*1] = (DCTELEM) DESCALE(tmp10, CONST_BITS+1); + dataptr[DCTSIZE*3] = (DCTELEM) DESCALE(tmp11, CONST_BITS+1); + dataptr[DCTSIZE*5] = (DCTELEM) DESCALE(tmp12, CONST_BITS+1); + dataptr[DCTSIZE*7] = (DCTELEM) DESCALE(tmp13, CONST_BITS+1); + + dataptr++; /* advance pointer to next column */ + wsptr++; /* advance pointer to next column */ + } +} + + +/* + * Perform the forward DCT on a 13x13 sample block. + */ + +GLOBAL(void) +jpeg_fdct_13x13 (DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col) +{ + INT32 tmp0, tmp1, tmp2, tmp3, tmp4, tmp5, tmp6; + INT32 tmp10, tmp11, tmp12, tmp13, tmp14, tmp15; + INT32 z1, z2; + DCTELEM workspace[8*5]; + DCTELEM *dataptr; + DCTELEM *wsptr; + JSAMPROW elemptr; + int ctr; + SHIFT_TEMPS + + /* Pass 1: process rows. */ + /* Note results are scaled up by sqrt(8) compared to a true DCT. */ + /* cK represents sqrt(2) * cos(K*pi/26). */ + + dataptr = data; + ctr = 0; + for (;;) { + elemptr = sample_data[ctr] + start_col; + + /* Even part */ + + tmp0 = GETJSAMPLE(elemptr[0]) + GETJSAMPLE(elemptr[12]); + tmp1 = GETJSAMPLE(elemptr[1]) + GETJSAMPLE(elemptr[11]); + tmp2 = GETJSAMPLE(elemptr[2]) + GETJSAMPLE(elemptr[10]); + tmp3 = GETJSAMPLE(elemptr[3]) + GETJSAMPLE(elemptr[9]); + tmp4 = GETJSAMPLE(elemptr[4]) + GETJSAMPLE(elemptr[8]); + tmp5 = GETJSAMPLE(elemptr[5]) + GETJSAMPLE(elemptr[7]); + tmp6 = GETJSAMPLE(elemptr[6]); + + tmp10 = GETJSAMPLE(elemptr[0]) - GETJSAMPLE(elemptr[12]); + tmp11 = GETJSAMPLE(elemptr[1]) - GETJSAMPLE(elemptr[11]); + tmp12 = GETJSAMPLE(elemptr[2]) - GETJSAMPLE(elemptr[10]); + tmp13 = GETJSAMPLE(elemptr[3]) - GETJSAMPLE(elemptr[9]); + tmp14 = GETJSAMPLE(elemptr[4]) - GETJSAMPLE(elemptr[8]); + tmp15 = GETJSAMPLE(elemptr[5]) - GETJSAMPLE(elemptr[7]); + + /* Apply unsigned->signed conversion */ + dataptr[0] = (DCTELEM) + (tmp0 + tmp1 + tmp2 + tmp3 + tmp4 + tmp5 + tmp6 - 13 * CENTERJSAMPLE); + tmp6 += tmp6; + tmp0 -= tmp6; + tmp1 -= tmp6; + tmp2 -= tmp6; + tmp3 -= tmp6; + tmp4 -= tmp6; + tmp5 -= tmp6; + dataptr[2] = (DCTELEM) + DESCALE(MULTIPLY(tmp0, FIX(1.373119086)) + /* c2 */ + MULTIPLY(tmp1, FIX(1.058554052)) + /* c6 */ + MULTIPLY(tmp2, FIX(0.501487041)) - /* c10 */ + MULTIPLY(tmp3, FIX(0.170464608)) - /* c12 */ + MULTIPLY(tmp4, FIX(0.803364869)) - /* c8 */ + MULTIPLY(tmp5, FIX(1.252223920)), /* c4 */ + CONST_BITS); + z1 = MULTIPLY(tmp0 - tmp2, FIX(1.155388986)) - /* (c4+c6)/2 */ + MULTIPLY(tmp3 - tmp4, FIX(0.435816023)) - /* (c2-c10)/2 */ + MULTIPLY(tmp1 - tmp5, FIX(0.316450131)); /* (c8-c12)/2 */ + z2 = MULTIPLY(tmp0 + tmp2, FIX(0.096834934)) - /* (c4-c6)/2 */ + MULTIPLY(tmp3 + tmp4, FIX(0.937303064)) + /* (c2+c10)/2 */ + MULTIPLY(tmp1 + tmp5, FIX(0.486914739)); /* (c8+c12)/2 */ + + dataptr[4] = (DCTELEM) DESCALE(z1 + z2, CONST_BITS); + dataptr[6] = (DCTELEM) DESCALE(z1 - z2, CONST_BITS); + + /* Odd part */ + + tmp1 = MULTIPLY(tmp10 + tmp11, FIX(1.322312651)); /* c3 */ + tmp2 = MULTIPLY(tmp10 + tmp12, FIX(1.163874945)); /* c5 */ + tmp3 = MULTIPLY(tmp10 + tmp13, FIX(0.937797057)) + /* c7 */ + MULTIPLY(tmp14 + tmp15, FIX(0.338443458)); /* c11 */ + tmp0 = tmp1 + tmp2 + tmp3 - + MULTIPLY(tmp10, FIX(2.020082300)) + /* c3+c5+c7-c1 */ + MULTIPLY(tmp14, FIX(0.318774355)); /* c9-c11 */ + tmp4 = MULTIPLY(tmp14 - tmp15, FIX(0.937797057)) - /* c7 */ + MULTIPLY(tmp11 + tmp12, FIX(0.338443458)); /* c11 */ + tmp5 = MULTIPLY(tmp11 + tmp13, - FIX(1.163874945)); /* -c5 */ + tmp1 += tmp4 + tmp5 + + MULTIPLY(tmp11, FIX(0.837223564)) - /* c5+c9+c11-c3 */ + MULTIPLY(tmp14, FIX(2.341699410)); /* c1+c7 */ + tmp6 = MULTIPLY(tmp12 + tmp13, - FIX(0.657217813)); /* -c9 */ + tmp2 += tmp4 + tmp6 - + MULTIPLY(tmp12, FIX(1.572116027)) + /* c1+c5-c9-c11 */ + MULTIPLY(tmp15, FIX(2.260109708)); /* c3+c7 */ + tmp3 += tmp5 + tmp6 + + MULTIPLY(tmp13, FIX(2.205608352)) - /* c3+c5+c9-c7 */ + MULTIPLY(tmp15, FIX(1.742345811)); /* c1+c11 */ + + dataptr[1] = (DCTELEM) DESCALE(tmp0, CONST_BITS); + dataptr[3] = (DCTELEM) DESCALE(tmp1, CONST_BITS); + dataptr[5] = (DCTELEM) DESCALE(tmp2, CONST_BITS); + dataptr[7] = (DCTELEM) DESCALE(tmp3, CONST_BITS); + + ctr++; + + if (ctr != DCTSIZE) { + if (ctr == 13) + break; /* Done. */ + dataptr += DCTSIZE; /* advance pointer to next row */ + } else + dataptr = workspace; /* switch pointer to extended workspace */ + } + + /* Pass 2: process columns. + * We leave the results scaled up by an overall factor of 8. + * We must also scale the output by (8/13)**2 = 64/169, which we partially + * fold into the constant multipliers and final shifting: + * cK now represents sqrt(2) * cos(K*pi/26) * 128/169. + */ + + dataptr = data; + wsptr = workspace; + for (ctr = DCTSIZE-1; ctr >= 0; ctr--) { + /* Even part */ + + tmp0 = dataptr[DCTSIZE*0] + wsptr[DCTSIZE*4]; + tmp1 = dataptr[DCTSIZE*1] + wsptr[DCTSIZE*3]; + tmp2 = dataptr[DCTSIZE*2] + wsptr[DCTSIZE*2]; + tmp3 = dataptr[DCTSIZE*3] + wsptr[DCTSIZE*1]; + tmp4 = dataptr[DCTSIZE*4] + wsptr[DCTSIZE*0]; + tmp5 = dataptr[DCTSIZE*5] + dataptr[DCTSIZE*7]; + tmp6 = dataptr[DCTSIZE*6]; + + tmp10 = dataptr[DCTSIZE*0] - wsptr[DCTSIZE*4]; + tmp11 = dataptr[DCTSIZE*1] - wsptr[DCTSIZE*3]; + tmp12 = dataptr[DCTSIZE*2] - wsptr[DCTSIZE*2]; + tmp13 = dataptr[DCTSIZE*3] - wsptr[DCTSIZE*1]; + tmp14 = dataptr[DCTSIZE*4] - wsptr[DCTSIZE*0]; + tmp15 = dataptr[DCTSIZE*5] - dataptr[DCTSIZE*7]; + + dataptr[DCTSIZE*0] = (DCTELEM) + DESCALE(MULTIPLY(tmp0 + tmp1 + tmp2 + tmp3 + tmp4 + tmp5 + tmp6, + FIX(0.757396450)), /* 128/169 */ + CONST_BITS+1); + tmp6 += tmp6; + tmp0 -= tmp6; + tmp1 -= tmp6; + tmp2 -= tmp6; + tmp3 -= tmp6; + tmp4 -= tmp6; + tmp5 -= tmp6; + dataptr[DCTSIZE*2] = (DCTELEM) + DESCALE(MULTIPLY(tmp0, FIX(1.039995521)) + /* c2 */ + MULTIPLY(tmp1, FIX(0.801745081)) + /* c6 */ + MULTIPLY(tmp2, FIX(0.379824504)) - /* c10 */ + MULTIPLY(tmp3, FIX(0.129109289)) - /* c12 */ + MULTIPLY(tmp4, FIX(0.608465700)) - /* c8 */ + MULTIPLY(tmp5, FIX(0.948429952)), /* c4 */ + CONST_BITS+1); + z1 = MULTIPLY(tmp0 - tmp2, FIX(0.875087516)) - /* (c4+c6)/2 */ + MULTIPLY(tmp3 - tmp4, FIX(0.330085509)) - /* (c2-c10)/2 */ + MULTIPLY(tmp1 - tmp5, FIX(0.239678205)); /* (c8-c12)/2 */ + z2 = MULTIPLY(tmp0 + tmp2, FIX(0.073342435)) - /* (c4-c6)/2 */ + MULTIPLY(tmp3 + tmp4, FIX(0.709910013)) + /* (c2+c10)/2 */ + MULTIPLY(tmp1 + tmp5, FIX(0.368787494)); /* (c8+c12)/2 */ + + dataptr[DCTSIZE*4] = (DCTELEM) DESCALE(z1 + z2, CONST_BITS+1); + dataptr[DCTSIZE*6] = (DCTELEM) DESCALE(z1 - z2, CONST_BITS+1); + + /* Odd part */ + + tmp1 = MULTIPLY(tmp10 + tmp11, FIX(1.001514908)); /* c3 */ + tmp2 = MULTIPLY(tmp10 + tmp12, FIX(0.881514751)); /* c5 */ + tmp3 = MULTIPLY(tmp10 + tmp13, FIX(0.710284161)) + /* c7 */ + MULTIPLY(tmp14 + tmp15, FIX(0.256335874)); /* c11 */ + tmp0 = tmp1 + tmp2 + tmp3 - + MULTIPLY(tmp10, FIX(1.530003162)) + /* c3+c5+c7-c1 */ + MULTIPLY(tmp14, FIX(0.241438564)); /* c9-c11 */ + tmp4 = MULTIPLY(tmp14 - tmp15, FIX(0.710284161)) - /* c7 */ + MULTIPLY(tmp11 + tmp12, FIX(0.256335874)); /* c11 */ + tmp5 = MULTIPLY(tmp11 + tmp13, - FIX(0.881514751)); /* -c5 */ + tmp1 += tmp4 + tmp5 + + MULTIPLY(tmp11, FIX(0.634110155)) - /* c5+c9+c11-c3 */ + MULTIPLY(tmp14, FIX(1.773594819)); /* c1+c7 */ + tmp6 = MULTIPLY(tmp12 + tmp13, - FIX(0.497774438)); /* -c9 */ + tmp2 += tmp4 + tmp6 - + MULTIPLY(tmp12, FIX(1.190715098)) + /* c1+c5-c9-c11 */ + MULTIPLY(tmp15, FIX(1.711799069)); /* c3+c7 */ + tmp3 += tmp5 + tmp6 + + MULTIPLY(tmp13, FIX(1.670519935)) - /* c3+c5+c9-c7 */ + MULTIPLY(tmp15, FIX(1.319646532)); /* c1+c11 */ + + dataptr[DCTSIZE*1] = (DCTELEM) DESCALE(tmp0, CONST_BITS+1); + dataptr[DCTSIZE*3] = (DCTELEM) DESCALE(tmp1, CONST_BITS+1); + dataptr[DCTSIZE*5] = (DCTELEM) DESCALE(tmp2, CONST_BITS+1); + dataptr[DCTSIZE*7] = (DCTELEM) DESCALE(tmp3, CONST_BITS+1); + + dataptr++; /* advance pointer to next column */ + wsptr++; /* advance pointer to next column */ + } +} + + +/* + * Perform the forward DCT on a 14x14 sample block. + */ + +GLOBAL(void) +jpeg_fdct_14x14 (DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col) +{ + INT32 tmp0, tmp1, tmp2, tmp3, tmp4, tmp5, tmp6; + INT32 tmp10, tmp11, tmp12, tmp13, tmp14, tmp15, tmp16; + DCTELEM workspace[8*6]; + DCTELEM *dataptr; + DCTELEM *wsptr; + JSAMPROW elemptr; + int ctr; + SHIFT_TEMPS + + /* Pass 1: process rows. */ + /* Note results are scaled up by sqrt(8) compared to a true DCT. */ + /* cK represents sqrt(2) * cos(K*pi/28). */ + + dataptr = data; + ctr = 0; + for (;;) { + elemptr = sample_data[ctr] + start_col; + + /* Even part */ + + tmp0 = GETJSAMPLE(elemptr[0]) + GETJSAMPLE(elemptr[13]); + tmp1 = GETJSAMPLE(elemptr[1]) + GETJSAMPLE(elemptr[12]); + tmp2 = GETJSAMPLE(elemptr[2]) + GETJSAMPLE(elemptr[11]); + tmp13 = GETJSAMPLE(elemptr[3]) + GETJSAMPLE(elemptr[10]); + tmp4 = GETJSAMPLE(elemptr[4]) + GETJSAMPLE(elemptr[9]); + tmp5 = GETJSAMPLE(elemptr[5]) + GETJSAMPLE(elemptr[8]); + tmp6 = GETJSAMPLE(elemptr[6]) + GETJSAMPLE(elemptr[7]); + + tmp10 = tmp0 + tmp6; + tmp14 = tmp0 - tmp6; + tmp11 = tmp1 + tmp5; + tmp15 = tmp1 - tmp5; + tmp12 = tmp2 + tmp4; + tmp16 = tmp2 - tmp4; + + tmp0 = GETJSAMPLE(elemptr[0]) - GETJSAMPLE(elemptr[13]); + tmp1 = GETJSAMPLE(elemptr[1]) - GETJSAMPLE(elemptr[12]); + tmp2 = GETJSAMPLE(elemptr[2]) - GETJSAMPLE(elemptr[11]); + tmp3 = GETJSAMPLE(elemptr[3]) - GETJSAMPLE(elemptr[10]); + tmp4 = GETJSAMPLE(elemptr[4]) - GETJSAMPLE(elemptr[9]); + tmp5 = GETJSAMPLE(elemptr[5]) - GETJSAMPLE(elemptr[8]); + tmp6 = GETJSAMPLE(elemptr[6]) - GETJSAMPLE(elemptr[7]); + + /* Apply unsigned->signed conversion */ + dataptr[0] = (DCTELEM) + (tmp10 + tmp11 + tmp12 + tmp13 - 14 * CENTERJSAMPLE); + tmp13 += tmp13; + dataptr[4] = (DCTELEM) + DESCALE(MULTIPLY(tmp10 - tmp13, FIX(1.274162392)) + /* c4 */ + MULTIPLY(tmp11 - tmp13, FIX(0.314692123)) - /* c12 */ + MULTIPLY(tmp12 - tmp13, FIX(0.881747734)), /* c8 */ + CONST_BITS); + + tmp10 = MULTIPLY(tmp14 + tmp15, FIX(1.105676686)); /* c6 */ + + dataptr[2] = (DCTELEM) + DESCALE(tmp10 + MULTIPLY(tmp14, FIX(0.273079590)) /* c2-c6 */ + + MULTIPLY(tmp16, FIX(0.613604268)), /* c10 */ + CONST_BITS); + dataptr[6] = (DCTELEM) + DESCALE(tmp10 - MULTIPLY(tmp15, FIX(1.719280954)) /* c6+c10 */ + - MULTIPLY(tmp16, FIX(1.378756276)), /* c2 */ + CONST_BITS); + + /* Odd part */ + + tmp10 = tmp1 + tmp2; + tmp11 = tmp5 - tmp4; + dataptr[7] = (DCTELEM) (tmp0 - tmp10 + tmp3 - tmp11 - tmp6); + tmp3 <<= CONST_BITS; + tmp10 = MULTIPLY(tmp10, - FIX(0.158341681)); /* -c13 */ + tmp11 = MULTIPLY(tmp11, FIX(1.405321284)); /* c1 */ + tmp10 += tmp11 - tmp3; + tmp11 = MULTIPLY(tmp0 + tmp2, FIX(1.197448846)) + /* c5 */ + MULTIPLY(tmp4 + tmp6, FIX(0.752406978)); /* c9 */ + dataptr[5] = (DCTELEM) + DESCALE(tmp10 + tmp11 - MULTIPLY(tmp2, FIX(2.373959773)) /* c3+c5-c13 */ + + MULTIPLY(tmp4, FIX(1.119999435)), /* c1+c11-c9 */ + CONST_BITS); + tmp12 = MULTIPLY(tmp0 + tmp1, FIX(1.334852607)) + /* c3 */ + MULTIPLY(tmp5 - tmp6, FIX(0.467085129)); /* c11 */ + dataptr[3] = (DCTELEM) + DESCALE(tmp10 + tmp12 - MULTIPLY(tmp1, FIX(0.424103948)) /* c3-c9-c13 */ + - MULTIPLY(tmp5, FIX(3.069855259)), /* c1+c5+c11 */ + CONST_BITS); + dataptr[1] = (DCTELEM) + DESCALE(tmp11 + tmp12 + tmp3 + tmp6 - + MULTIPLY(tmp0 + tmp6, FIX(1.126980169)), /* c3+c5-c1 */ + CONST_BITS); + + ctr++; + + if (ctr != DCTSIZE) { + if (ctr == 14) + break; /* Done. */ + dataptr += DCTSIZE; /* advance pointer to next row */ + } else + dataptr = workspace; /* switch pointer to extended workspace */ + } + + /* Pass 2: process columns. + * We leave the results scaled up by an overall factor of 8. + * We must also scale the output by (8/14)**2 = 16/49, which we partially + * fold into the constant multipliers and final shifting: + * cK now represents sqrt(2) * cos(K*pi/28) * 32/49. + */ + + dataptr = data; + wsptr = workspace; + for (ctr = DCTSIZE-1; ctr >= 0; ctr--) { + /* Even part */ + + tmp0 = dataptr[DCTSIZE*0] + wsptr[DCTSIZE*5]; + tmp1 = dataptr[DCTSIZE*1] + wsptr[DCTSIZE*4]; + tmp2 = dataptr[DCTSIZE*2] + wsptr[DCTSIZE*3]; + tmp13 = dataptr[DCTSIZE*3] + wsptr[DCTSIZE*2]; + tmp4 = dataptr[DCTSIZE*4] + wsptr[DCTSIZE*1]; + tmp5 = dataptr[DCTSIZE*5] + wsptr[DCTSIZE*0]; + tmp6 = dataptr[DCTSIZE*6] + dataptr[DCTSIZE*7]; + + tmp10 = tmp0 + tmp6; + tmp14 = tmp0 - tmp6; + tmp11 = tmp1 + tmp5; + tmp15 = tmp1 - tmp5; + tmp12 = tmp2 + tmp4; + tmp16 = tmp2 - tmp4; + + tmp0 = dataptr[DCTSIZE*0] - wsptr[DCTSIZE*5]; + tmp1 = dataptr[DCTSIZE*1] - wsptr[DCTSIZE*4]; + tmp2 = dataptr[DCTSIZE*2] - wsptr[DCTSIZE*3]; + tmp3 = dataptr[DCTSIZE*3] - wsptr[DCTSIZE*2]; + tmp4 = dataptr[DCTSIZE*4] - wsptr[DCTSIZE*1]; + tmp5 = dataptr[DCTSIZE*5] - wsptr[DCTSIZE*0]; + tmp6 = dataptr[DCTSIZE*6] - dataptr[DCTSIZE*7]; + + dataptr[DCTSIZE*0] = (DCTELEM) + DESCALE(MULTIPLY(tmp10 + tmp11 + tmp12 + tmp13, + FIX(0.653061224)), /* 32/49 */ + CONST_BITS+1); + tmp13 += tmp13; + dataptr[DCTSIZE*4] = (DCTELEM) + DESCALE(MULTIPLY(tmp10 - tmp13, FIX(0.832106052)) + /* c4 */ + MULTIPLY(tmp11 - tmp13, FIX(0.205513223)) - /* c12 */ + MULTIPLY(tmp12 - tmp13, FIX(0.575835255)), /* c8 */ + CONST_BITS+1); + + tmp10 = MULTIPLY(tmp14 + tmp15, FIX(0.722074570)); /* c6 */ + + dataptr[DCTSIZE*2] = (DCTELEM) + DESCALE(tmp10 + MULTIPLY(tmp14, FIX(0.178337691)) /* c2-c6 */ + + MULTIPLY(tmp16, FIX(0.400721155)), /* c10 */ + CONST_BITS+1); + dataptr[DCTSIZE*6] = (DCTELEM) + DESCALE(tmp10 - MULTIPLY(tmp15, FIX(1.122795725)) /* c6+c10 */ + - MULTIPLY(tmp16, FIX(0.900412262)), /* c2 */ + CONST_BITS+1); + + /* Odd part */ + + tmp10 = tmp1 + tmp2; + tmp11 = tmp5 - tmp4; + dataptr[DCTSIZE*7] = (DCTELEM) + DESCALE(MULTIPLY(tmp0 - tmp10 + tmp3 - tmp11 - tmp6, + FIX(0.653061224)), /* 32/49 */ + CONST_BITS+1); + tmp3 = MULTIPLY(tmp3 , FIX(0.653061224)); /* 32/49 */ + tmp10 = MULTIPLY(tmp10, - FIX(0.103406812)); /* -c13 */ + tmp11 = MULTIPLY(tmp11, FIX(0.917760839)); /* c1 */ + tmp10 += tmp11 - tmp3; + tmp11 = MULTIPLY(tmp0 + tmp2, FIX(0.782007410)) + /* c5 */ + MULTIPLY(tmp4 + tmp6, FIX(0.491367823)); /* c9 */ + dataptr[DCTSIZE*5] = (DCTELEM) + DESCALE(tmp10 + tmp11 - MULTIPLY(tmp2, FIX(1.550341076)) /* c3+c5-c13 */ + + MULTIPLY(tmp4, FIX(0.731428202)), /* c1+c11-c9 */ + CONST_BITS+1); + tmp12 = MULTIPLY(tmp0 + tmp1, FIX(0.871740478)) + /* c3 */ + MULTIPLY(tmp5 - tmp6, FIX(0.305035186)); /* c11 */ + dataptr[DCTSIZE*3] = (DCTELEM) + DESCALE(tmp10 + tmp12 - MULTIPLY(tmp1, FIX(0.276965844)) /* c3-c9-c13 */ + - MULTIPLY(tmp5, FIX(2.004803435)), /* c1+c5+c11 */ + CONST_BITS+1); + dataptr[DCTSIZE*1] = (DCTELEM) + DESCALE(tmp11 + tmp12 + tmp3 + - MULTIPLY(tmp0, FIX(0.735987049)) /* c3+c5-c1 */ + - MULTIPLY(tmp6, FIX(0.082925825)), /* c9-c11-c13 */ + CONST_BITS+1); + + dataptr++; /* advance pointer to next column */ + wsptr++; /* advance pointer to next column */ + } +} + + +/* + * Perform the forward DCT on a 15x15 sample block. + */ + +GLOBAL(void) +jpeg_fdct_15x15 (DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col) +{ + INT32 tmp0, tmp1, tmp2, tmp3, tmp4, tmp5, tmp6, tmp7; + INT32 tmp10, tmp11, tmp12, tmp13, tmp14, tmp15, tmp16; + INT32 z1, z2, z3; + DCTELEM workspace[8*7]; + DCTELEM *dataptr; + DCTELEM *wsptr; + JSAMPROW elemptr; + int ctr; + SHIFT_TEMPS + + /* Pass 1: process rows. */ + /* Note results are scaled up by sqrt(8) compared to a true DCT. */ + /* cK represents sqrt(2) * cos(K*pi/30). */ + + dataptr = data; + ctr = 0; + for (;;) { + elemptr = sample_data[ctr] + start_col; + + /* Even part */ + + tmp0 = GETJSAMPLE(elemptr[0]) + GETJSAMPLE(elemptr[14]); + tmp1 = GETJSAMPLE(elemptr[1]) + GETJSAMPLE(elemptr[13]); + tmp2 = GETJSAMPLE(elemptr[2]) + GETJSAMPLE(elemptr[12]); + tmp3 = GETJSAMPLE(elemptr[3]) + GETJSAMPLE(elemptr[11]); + tmp4 = GETJSAMPLE(elemptr[4]) + GETJSAMPLE(elemptr[10]); + tmp5 = GETJSAMPLE(elemptr[5]) + GETJSAMPLE(elemptr[9]); + tmp6 = GETJSAMPLE(elemptr[6]) + GETJSAMPLE(elemptr[8]); + tmp7 = GETJSAMPLE(elemptr[7]); + + tmp10 = GETJSAMPLE(elemptr[0]) - GETJSAMPLE(elemptr[14]); + tmp11 = GETJSAMPLE(elemptr[1]) - GETJSAMPLE(elemptr[13]); + tmp12 = GETJSAMPLE(elemptr[2]) - GETJSAMPLE(elemptr[12]); + tmp13 = GETJSAMPLE(elemptr[3]) - GETJSAMPLE(elemptr[11]); + tmp14 = GETJSAMPLE(elemptr[4]) - GETJSAMPLE(elemptr[10]); + tmp15 = GETJSAMPLE(elemptr[5]) - GETJSAMPLE(elemptr[9]); + tmp16 = GETJSAMPLE(elemptr[6]) - GETJSAMPLE(elemptr[8]); + + z1 = tmp0 + tmp4 + tmp5; + z2 = tmp1 + tmp3 + tmp6; + z3 = tmp2 + tmp7; + /* Apply unsigned->signed conversion */ + dataptr[0] = (DCTELEM) (z1 + z2 + z3 - 15 * CENTERJSAMPLE); + z3 += z3; + dataptr[6] = (DCTELEM) + DESCALE(MULTIPLY(z1 - z3, FIX(1.144122806)) - /* c6 */ + MULTIPLY(z2 - z3, FIX(0.437016024)), /* c12 */ + CONST_BITS); + tmp2 += ((tmp1 + tmp4) >> 1) - tmp7 - tmp7; + z1 = MULTIPLY(tmp3 - tmp2, FIX(1.531135173)) - /* c2+c14 */ + MULTIPLY(tmp6 - tmp2, FIX(2.238241955)); /* c4+c8 */ + z2 = MULTIPLY(tmp5 - tmp2, FIX(0.798468008)) - /* c8-c14 */ + MULTIPLY(tmp0 - tmp2, FIX(0.091361227)); /* c2-c4 */ + z3 = MULTIPLY(tmp0 - tmp3, FIX(1.383309603)) + /* c2 */ + MULTIPLY(tmp6 - tmp5, FIX(0.946293579)) + /* c8 */ + MULTIPLY(tmp1 - tmp4, FIX(0.790569415)); /* (c6+c12)/2 */ + + dataptr[2] = (DCTELEM) DESCALE(z1 + z3, CONST_BITS); + dataptr[4] = (DCTELEM) DESCALE(z2 + z3, CONST_BITS); + + /* Odd part */ + + tmp2 = MULTIPLY(tmp10 - tmp12 - tmp13 + tmp15 + tmp16, + FIX(1.224744871)); /* c5 */ + tmp1 = MULTIPLY(tmp10 - tmp14 - tmp15, FIX(1.344997024)) + /* c3 */ + MULTIPLY(tmp11 - tmp13 - tmp16, FIX(0.831253876)); /* c9 */ + tmp12 = MULTIPLY(tmp12, FIX(1.224744871)); /* c5 */ + tmp4 = MULTIPLY(tmp10 - tmp16, FIX(1.406466353)) + /* c1 */ + MULTIPLY(tmp11 + tmp14, FIX(1.344997024)) + /* c3 */ + MULTIPLY(tmp13 + tmp15, FIX(0.575212477)); /* c11 */ + tmp0 = MULTIPLY(tmp13, FIX(0.475753014)) - /* c7-c11 */ + MULTIPLY(tmp14, FIX(0.513743148)) + /* c3-c9 */ + MULTIPLY(tmp16, FIX(1.700497885)) + tmp4 + tmp12; /* c1+c13 */ + tmp3 = MULTIPLY(tmp10, - FIX(0.355500862)) - /* -(c1-c7) */ + MULTIPLY(tmp11, FIX(2.176250899)) - /* c3+c9 */ + MULTIPLY(tmp15, FIX(0.869244010)) + tmp4 - tmp12; /* c11+c13 */ + + dataptr[1] = (DCTELEM) DESCALE(tmp0, CONST_BITS); + dataptr[3] = (DCTELEM) DESCALE(tmp1, CONST_BITS); + dataptr[5] = (DCTELEM) DESCALE(tmp2, CONST_BITS); + dataptr[7] = (DCTELEM) DESCALE(tmp3, CONST_BITS); + + ctr++; + + if (ctr != DCTSIZE) { + if (ctr == 15) + break; /* Done. */ + dataptr += DCTSIZE; /* advance pointer to next row */ + } else + dataptr = workspace; /* switch pointer to extended workspace */ + } + + /* Pass 2: process columns. + * We leave the results scaled up by an overall factor of 8. + * We must also scale the output by (8/15)**2 = 64/225, which we partially + * fold into the constant multipliers and final shifting: + * cK now represents sqrt(2) * cos(K*pi/30) * 256/225. + */ + + dataptr = data; + wsptr = workspace; + for (ctr = DCTSIZE-1; ctr >= 0; ctr--) { + /* Even part */ + + tmp0 = dataptr[DCTSIZE*0] + wsptr[DCTSIZE*6]; + tmp1 = dataptr[DCTSIZE*1] + wsptr[DCTSIZE*5]; + tmp2 = dataptr[DCTSIZE*2] + wsptr[DCTSIZE*4]; + tmp3 = dataptr[DCTSIZE*3] + wsptr[DCTSIZE*3]; + tmp4 = dataptr[DCTSIZE*4] + wsptr[DCTSIZE*2]; + tmp5 = dataptr[DCTSIZE*5] + wsptr[DCTSIZE*1]; + tmp6 = dataptr[DCTSIZE*6] + wsptr[DCTSIZE*0]; + tmp7 = dataptr[DCTSIZE*7]; + + tmp10 = dataptr[DCTSIZE*0] - wsptr[DCTSIZE*6]; + tmp11 = dataptr[DCTSIZE*1] - wsptr[DCTSIZE*5]; + tmp12 = dataptr[DCTSIZE*2] - wsptr[DCTSIZE*4]; + tmp13 = dataptr[DCTSIZE*3] - wsptr[DCTSIZE*3]; + tmp14 = dataptr[DCTSIZE*4] - wsptr[DCTSIZE*2]; + tmp15 = dataptr[DCTSIZE*5] - wsptr[DCTSIZE*1]; + tmp16 = dataptr[DCTSIZE*6] - wsptr[DCTSIZE*0]; + + z1 = tmp0 + tmp4 + tmp5; + z2 = tmp1 + tmp3 + tmp6; + z3 = tmp2 + tmp7; + dataptr[DCTSIZE*0] = (DCTELEM) + DESCALE(MULTIPLY(z1 + z2 + z3, FIX(1.137777778)), /* 256/225 */ + CONST_BITS+2); + z3 += z3; + dataptr[DCTSIZE*6] = (DCTELEM) + DESCALE(MULTIPLY(z1 - z3, FIX(1.301757503)) - /* c6 */ + MULTIPLY(z2 - z3, FIX(0.497227121)), /* c12 */ + CONST_BITS+2); + tmp2 += ((tmp1 + tmp4) >> 1) - tmp7 - tmp7; + z1 = MULTIPLY(tmp3 - tmp2, FIX(1.742091575)) - /* c2+c14 */ + MULTIPLY(tmp6 - tmp2, FIX(2.546621957)); /* c4+c8 */ + z2 = MULTIPLY(tmp5 - tmp2, FIX(0.908479156)) - /* c8-c14 */ + MULTIPLY(tmp0 - tmp2, FIX(0.103948774)); /* c2-c4 */ + z3 = MULTIPLY(tmp0 - tmp3, FIX(1.573898926)) + /* c2 */ + MULTIPLY(tmp6 - tmp5, FIX(1.076671805)) + /* c8 */ + MULTIPLY(tmp1 - tmp4, FIX(0.899492312)); /* (c6+c12)/2 */ + + dataptr[DCTSIZE*2] = (DCTELEM) DESCALE(z1 + z3, CONST_BITS+2); + dataptr[DCTSIZE*4] = (DCTELEM) DESCALE(z2 + z3, CONST_BITS+2); + + /* Odd part */ + + tmp2 = MULTIPLY(tmp10 - tmp12 - tmp13 + tmp15 + tmp16, + FIX(1.393487498)); /* c5 */ + tmp1 = MULTIPLY(tmp10 - tmp14 - tmp15, FIX(1.530307725)) + /* c3 */ + MULTIPLY(tmp11 - tmp13 - tmp16, FIX(0.945782187)); /* c9 */ + tmp12 = MULTIPLY(tmp12, FIX(1.393487498)); /* c5 */ + tmp4 = MULTIPLY(tmp10 - tmp16, FIX(1.600246161)) + /* c1 */ + MULTIPLY(tmp11 + tmp14, FIX(1.530307725)) + /* c3 */ + MULTIPLY(tmp13 + tmp15, FIX(0.654463974)); /* c11 */ + tmp0 = MULTIPLY(tmp13, FIX(0.541301207)) - /* c7-c11 */ + MULTIPLY(tmp14, FIX(0.584525538)) + /* c3-c9 */ + MULTIPLY(tmp16, FIX(1.934788705)) + tmp4 + tmp12; /* c1+c13 */ + tmp3 = MULTIPLY(tmp10, - FIX(0.404480980)) - /* -(c1-c7) */ + MULTIPLY(tmp11, FIX(2.476089912)) - /* c3+c9 */ + MULTIPLY(tmp15, FIX(0.989006518)) + tmp4 - tmp12; /* c11+c13 */ + + dataptr[DCTSIZE*1] = (DCTELEM) DESCALE(tmp0, CONST_BITS+2); + dataptr[DCTSIZE*3] = (DCTELEM) DESCALE(tmp1, CONST_BITS+2); + dataptr[DCTSIZE*5] = (DCTELEM) DESCALE(tmp2, CONST_BITS+2); + dataptr[DCTSIZE*7] = (DCTELEM) DESCALE(tmp3, CONST_BITS+2); + + dataptr++; /* advance pointer to next column */ + wsptr++; /* advance pointer to next column */ + } +} + + +/* + * Perform the forward DCT on a 16x16 sample block. + */ + +GLOBAL(void) +jpeg_fdct_16x16 (DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col) +{ + INT32 tmp0, tmp1, tmp2, tmp3, tmp4, tmp5, tmp6, tmp7; + INT32 tmp10, tmp11, tmp12, tmp13, tmp14, tmp15, tmp16, tmp17; + DCTELEM workspace[DCTSIZE2]; + DCTELEM *dataptr; + DCTELEM *wsptr; + JSAMPROW elemptr; + int ctr; + SHIFT_TEMPS + + /* Pass 1: process rows. */ + /* Note results are scaled up by sqrt(8) compared to a true DCT; */ + /* furthermore, we scale the results by 2**PASS1_BITS. */ + /* cK represents sqrt(2) * cos(K*pi/32). */ + + dataptr = data; + ctr = 0; + for (;;) { + elemptr = sample_data[ctr] + start_col; + + /* Even part */ + + tmp0 = GETJSAMPLE(elemptr[0]) + GETJSAMPLE(elemptr[15]); + tmp1 = GETJSAMPLE(elemptr[1]) + GETJSAMPLE(elemptr[14]); + tmp2 = GETJSAMPLE(elemptr[2]) + GETJSAMPLE(elemptr[13]); + tmp3 = GETJSAMPLE(elemptr[3]) + GETJSAMPLE(elemptr[12]); + tmp4 = GETJSAMPLE(elemptr[4]) + GETJSAMPLE(elemptr[11]); + tmp5 = GETJSAMPLE(elemptr[5]) + GETJSAMPLE(elemptr[10]); + tmp6 = GETJSAMPLE(elemptr[6]) + GETJSAMPLE(elemptr[9]); + tmp7 = GETJSAMPLE(elemptr[7]) + GETJSAMPLE(elemptr[8]); + + tmp10 = tmp0 + tmp7; + tmp14 = tmp0 - tmp7; + tmp11 = tmp1 + tmp6; + tmp15 = tmp1 - tmp6; + tmp12 = tmp2 + tmp5; + tmp16 = tmp2 - tmp5; + tmp13 = tmp3 + tmp4; + tmp17 = tmp3 - tmp4; + + tmp0 = GETJSAMPLE(elemptr[0]) - GETJSAMPLE(elemptr[15]); + tmp1 = GETJSAMPLE(elemptr[1]) - GETJSAMPLE(elemptr[14]); + tmp2 = GETJSAMPLE(elemptr[2]) - GETJSAMPLE(elemptr[13]); + tmp3 = GETJSAMPLE(elemptr[3]) - GETJSAMPLE(elemptr[12]); + tmp4 = GETJSAMPLE(elemptr[4]) - GETJSAMPLE(elemptr[11]); + tmp5 = GETJSAMPLE(elemptr[5]) - GETJSAMPLE(elemptr[10]); + tmp6 = GETJSAMPLE(elemptr[6]) - GETJSAMPLE(elemptr[9]); + tmp7 = GETJSAMPLE(elemptr[7]) - GETJSAMPLE(elemptr[8]); + + /* Apply unsigned->signed conversion */ + dataptr[0] = (DCTELEM) + ((tmp10 + tmp11 + tmp12 + tmp13 - 16 * CENTERJSAMPLE) << PASS1_BITS); + dataptr[4] = (DCTELEM) + DESCALE(MULTIPLY(tmp10 - tmp13, FIX(1.306562965)) + /* c4[16] = c2[8] */ + MULTIPLY(tmp11 - tmp12, FIX_0_541196100), /* c12[16] = c6[8] */ + CONST_BITS-PASS1_BITS); + + tmp10 = MULTIPLY(tmp17 - tmp15, FIX(0.275899379)) + /* c14[16] = c7[8] */ + MULTIPLY(tmp14 - tmp16, FIX(1.387039845)); /* c2[16] = c1[8] */ + + dataptr[2] = (DCTELEM) + DESCALE(tmp10 + MULTIPLY(tmp15, FIX(1.451774982)) /* c6+c14 */ + + MULTIPLY(tmp16, FIX(2.172734804)), /* c2+c10 */ + CONST_BITS-PASS1_BITS); + dataptr[6] = (DCTELEM) + DESCALE(tmp10 - MULTIPLY(tmp14, FIX(0.211164243)) /* c2-c6 */ + - MULTIPLY(tmp17, FIX(1.061594338)), /* c10+c14 */ + CONST_BITS-PASS1_BITS); + + /* Odd part */ + + tmp11 = MULTIPLY(tmp0 + tmp1, FIX(1.353318001)) + /* c3 */ + MULTIPLY(tmp6 - tmp7, FIX(0.410524528)); /* c13 */ + tmp12 = MULTIPLY(tmp0 + tmp2, FIX(1.247225013)) + /* c5 */ + MULTIPLY(tmp5 + tmp7, FIX(0.666655658)); /* c11 */ + tmp13 = MULTIPLY(tmp0 + tmp3, FIX(1.093201867)) + /* c7 */ + MULTIPLY(tmp4 - tmp7, FIX(0.897167586)); /* c9 */ + tmp14 = MULTIPLY(tmp1 + tmp2, FIX(0.138617169)) + /* c15 */ + MULTIPLY(tmp6 - tmp5, FIX(1.407403738)); /* c1 */ + tmp15 = MULTIPLY(tmp1 + tmp3, - FIX(0.666655658)) + /* -c11 */ + MULTIPLY(tmp4 + tmp6, - FIX(1.247225013)); /* -c5 */ + tmp16 = MULTIPLY(tmp2 + tmp3, - FIX(1.353318001)) + /* -c3 */ + MULTIPLY(tmp5 - tmp4, FIX(0.410524528)); /* c13 */ + tmp10 = tmp11 + tmp12 + tmp13 - + MULTIPLY(tmp0, FIX(2.286341144)) + /* c7+c5+c3-c1 */ + MULTIPLY(tmp7, FIX(0.779653625)); /* c15+c13-c11+c9 */ + tmp11 += tmp14 + tmp15 + MULTIPLY(tmp1, FIX(0.071888074)) /* c9-c3-c15+c11 */ + - MULTIPLY(tmp6, FIX(1.663905119)); /* c7+c13+c1-c5 */ + tmp12 += tmp14 + tmp16 - MULTIPLY(tmp2, FIX(1.125726048)) /* c7+c5+c15-c3 */ + + MULTIPLY(tmp5, FIX(1.227391138)); /* c9-c11+c1-c13 */ + tmp13 += tmp15 + tmp16 + MULTIPLY(tmp3, FIX(1.065388962)) /* c15+c3+c11-c7 */ + + MULTIPLY(tmp4, FIX(2.167985692)); /* c1+c13+c5-c9 */ + + dataptr[1] = (DCTELEM) DESCALE(tmp10, CONST_BITS-PASS1_BITS); + dataptr[3] = (DCTELEM) DESCALE(tmp11, CONST_BITS-PASS1_BITS); + dataptr[5] = (DCTELEM) DESCALE(tmp12, CONST_BITS-PASS1_BITS); + dataptr[7] = (DCTELEM) DESCALE(tmp13, CONST_BITS-PASS1_BITS); + + ctr++; + + if (ctr != DCTSIZE) { + if (ctr == DCTSIZE * 2) + break; /* Done. */ + dataptr += DCTSIZE; /* advance pointer to next row */ + } else + dataptr = workspace; /* switch pointer to extended workspace */ + } + + /* Pass 2: process columns. + * We remove the PASS1_BITS scaling, but leave the results scaled up + * by an overall factor of 8. + * We must also scale the output by (8/16)**2 = 1/2**2. + */ + + dataptr = data; + wsptr = workspace; + for (ctr = DCTSIZE-1; ctr >= 0; ctr--) { + /* Even part */ + + tmp0 = dataptr[DCTSIZE*0] + wsptr[DCTSIZE*7]; + tmp1 = dataptr[DCTSIZE*1] + wsptr[DCTSIZE*6]; + tmp2 = dataptr[DCTSIZE*2] + wsptr[DCTSIZE*5]; + tmp3 = dataptr[DCTSIZE*3] + wsptr[DCTSIZE*4]; + tmp4 = dataptr[DCTSIZE*4] + wsptr[DCTSIZE*3]; + tmp5 = dataptr[DCTSIZE*5] + wsptr[DCTSIZE*2]; + tmp6 = dataptr[DCTSIZE*6] + wsptr[DCTSIZE*1]; + tmp7 = dataptr[DCTSIZE*7] + wsptr[DCTSIZE*0]; + + tmp10 = tmp0 + tmp7; + tmp14 = tmp0 - tmp7; + tmp11 = tmp1 + tmp6; + tmp15 = tmp1 - tmp6; + tmp12 = tmp2 + tmp5; + tmp16 = tmp2 - tmp5; + tmp13 = tmp3 + tmp4; + tmp17 = tmp3 - tmp4; + + tmp0 = dataptr[DCTSIZE*0] - wsptr[DCTSIZE*7]; + tmp1 = dataptr[DCTSIZE*1] - wsptr[DCTSIZE*6]; + tmp2 = dataptr[DCTSIZE*2] - wsptr[DCTSIZE*5]; + tmp3 = dataptr[DCTSIZE*3] - wsptr[DCTSIZE*4]; + tmp4 = dataptr[DCTSIZE*4] - wsptr[DCTSIZE*3]; + tmp5 = dataptr[DCTSIZE*5] - wsptr[DCTSIZE*2]; + tmp6 = dataptr[DCTSIZE*6] - wsptr[DCTSIZE*1]; + tmp7 = dataptr[DCTSIZE*7] - wsptr[DCTSIZE*0]; + + dataptr[DCTSIZE*0] = (DCTELEM) + DESCALE(tmp10 + tmp11 + tmp12 + tmp13, PASS1_BITS+2); + dataptr[DCTSIZE*4] = (DCTELEM) + DESCALE(MULTIPLY(tmp10 - tmp13, FIX(1.306562965)) + /* c4[16] = c2[8] */ + MULTIPLY(tmp11 - tmp12, FIX_0_541196100), /* c12[16] = c6[8] */ + CONST_BITS+PASS1_BITS+2); + + tmp10 = MULTIPLY(tmp17 - tmp15, FIX(0.275899379)) + /* c14[16] = c7[8] */ + MULTIPLY(tmp14 - tmp16, FIX(1.387039845)); /* c2[16] = c1[8] */ + + dataptr[DCTSIZE*2] = (DCTELEM) + DESCALE(tmp10 + MULTIPLY(tmp15, FIX(1.451774982)) /* c6+c14 */ + + MULTIPLY(tmp16, FIX(2.172734804)), /* c2+10 */ + CONST_BITS+PASS1_BITS+2); + dataptr[DCTSIZE*6] = (DCTELEM) + DESCALE(tmp10 - MULTIPLY(tmp14, FIX(0.211164243)) /* c2-c6 */ + - MULTIPLY(tmp17, FIX(1.061594338)), /* c10+c14 */ + CONST_BITS+PASS1_BITS+2); + + /* Odd part */ + + tmp11 = MULTIPLY(tmp0 + tmp1, FIX(1.353318001)) + /* c3 */ + MULTIPLY(tmp6 - tmp7, FIX(0.410524528)); /* c13 */ + tmp12 = MULTIPLY(tmp0 + tmp2, FIX(1.247225013)) + /* c5 */ + MULTIPLY(tmp5 + tmp7, FIX(0.666655658)); /* c11 */ + tmp13 = MULTIPLY(tmp0 + tmp3, FIX(1.093201867)) + /* c7 */ + MULTIPLY(tmp4 - tmp7, FIX(0.897167586)); /* c9 */ + tmp14 = MULTIPLY(tmp1 + tmp2, FIX(0.138617169)) + /* c15 */ + MULTIPLY(tmp6 - tmp5, FIX(1.407403738)); /* c1 */ + tmp15 = MULTIPLY(tmp1 + tmp3, - FIX(0.666655658)) + /* -c11 */ + MULTIPLY(tmp4 + tmp6, - FIX(1.247225013)); /* -c5 */ + tmp16 = MULTIPLY(tmp2 + tmp3, - FIX(1.353318001)) + /* -c3 */ + MULTIPLY(tmp5 - tmp4, FIX(0.410524528)); /* c13 */ + tmp10 = tmp11 + tmp12 + tmp13 - + MULTIPLY(tmp0, FIX(2.286341144)) + /* c7+c5+c3-c1 */ + MULTIPLY(tmp7, FIX(0.779653625)); /* c15+c13-c11+c9 */ + tmp11 += tmp14 + tmp15 + MULTIPLY(tmp1, FIX(0.071888074)) /* c9-c3-c15+c11 */ + - MULTIPLY(tmp6, FIX(1.663905119)); /* c7+c13+c1-c5 */ + tmp12 += tmp14 + tmp16 - MULTIPLY(tmp2, FIX(1.125726048)) /* c7+c5+c15-c3 */ + + MULTIPLY(tmp5, FIX(1.227391138)); /* c9-c11+c1-c13 */ + tmp13 += tmp15 + tmp16 + MULTIPLY(tmp3, FIX(1.065388962)) /* c15+c3+c11-c7 */ + + MULTIPLY(tmp4, FIX(2.167985692)); /* c1+c13+c5-c9 */ + + dataptr[DCTSIZE*1] = (DCTELEM) DESCALE(tmp10, CONST_BITS+PASS1_BITS+2); + dataptr[DCTSIZE*3] = (DCTELEM) DESCALE(tmp11, CONST_BITS+PASS1_BITS+2); + dataptr[DCTSIZE*5] = (DCTELEM) DESCALE(tmp12, CONST_BITS+PASS1_BITS+2); + dataptr[DCTSIZE*7] = (DCTELEM) DESCALE(tmp13, CONST_BITS+PASS1_BITS+2); + + dataptr++; /* advance pointer to next column */ + wsptr++; /* advance pointer to next column */ + } +} + + +/* + * Perform the forward DCT on a 16x8 sample block. + * + * 16-point FDCT in pass 1 (rows), 8-point in pass 2 (columns). + */ + +GLOBAL(void) +jpeg_fdct_16x8 (DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col) +{ + INT32 tmp0, tmp1, tmp2, tmp3, tmp4, tmp5, tmp6, tmp7; + INT32 tmp10, tmp11, tmp12, tmp13, tmp14, tmp15, tmp16, tmp17; + INT32 z1; + DCTELEM *dataptr; + JSAMPROW elemptr; + int ctr; + SHIFT_TEMPS + + /* Pass 1: process rows. */ + /* Note results are scaled up by sqrt(8) compared to a true DCT; */ + /* furthermore, we scale the results by 2**PASS1_BITS. */ + /* 16-point FDCT kernel, cK represents sqrt(2) * cos(K*pi/32). */ + + dataptr = data; + ctr = 0; + for (ctr = 0; ctr < DCTSIZE; ctr++) { + elemptr = sample_data[ctr] + start_col; + + /* Even part */ + + tmp0 = GETJSAMPLE(elemptr[0]) + GETJSAMPLE(elemptr[15]); + tmp1 = GETJSAMPLE(elemptr[1]) + GETJSAMPLE(elemptr[14]); + tmp2 = GETJSAMPLE(elemptr[2]) + GETJSAMPLE(elemptr[13]); + tmp3 = GETJSAMPLE(elemptr[3]) + GETJSAMPLE(elemptr[12]); + tmp4 = GETJSAMPLE(elemptr[4]) + GETJSAMPLE(elemptr[11]); + tmp5 = GETJSAMPLE(elemptr[5]) + GETJSAMPLE(elemptr[10]); + tmp6 = GETJSAMPLE(elemptr[6]) + GETJSAMPLE(elemptr[9]); + tmp7 = GETJSAMPLE(elemptr[7]) + GETJSAMPLE(elemptr[8]); + + tmp10 = tmp0 + tmp7; + tmp14 = tmp0 - tmp7; + tmp11 = tmp1 + tmp6; + tmp15 = tmp1 - tmp6; + tmp12 = tmp2 + tmp5; + tmp16 = tmp2 - tmp5; + tmp13 = tmp3 + tmp4; + tmp17 = tmp3 - tmp4; + + tmp0 = GETJSAMPLE(elemptr[0]) - GETJSAMPLE(elemptr[15]); + tmp1 = GETJSAMPLE(elemptr[1]) - GETJSAMPLE(elemptr[14]); + tmp2 = GETJSAMPLE(elemptr[2]) - GETJSAMPLE(elemptr[13]); + tmp3 = GETJSAMPLE(elemptr[3]) - GETJSAMPLE(elemptr[12]); + tmp4 = GETJSAMPLE(elemptr[4]) - GETJSAMPLE(elemptr[11]); + tmp5 = GETJSAMPLE(elemptr[5]) - GETJSAMPLE(elemptr[10]); + tmp6 = GETJSAMPLE(elemptr[6]) - GETJSAMPLE(elemptr[9]); + tmp7 = GETJSAMPLE(elemptr[7]) - GETJSAMPLE(elemptr[8]); + + /* Apply unsigned->signed conversion */ + dataptr[0] = (DCTELEM) + ((tmp10 + tmp11 + tmp12 + tmp13 - 16 * CENTERJSAMPLE) << PASS1_BITS); + dataptr[4] = (DCTELEM) + DESCALE(MULTIPLY(tmp10 - tmp13, FIX(1.306562965)) + /* c4[16] = c2[8] */ + MULTIPLY(tmp11 - tmp12, FIX_0_541196100), /* c12[16] = c6[8] */ + CONST_BITS-PASS1_BITS); + + tmp10 = MULTIPLY(tmp17 - tmp15, FIX(0.275899379)) + /* c14[16] = c7[8] */ + MULTIPLY(tmp14 - tmp16, FIX(1.387039845)); /* c2[16] = c1[8] */ + + dataptr[2] = (DCTELEM) + DESCALE(tmp10 + MULTIPLY(tmp15, FIX(1.451774982)) /* c6+c14 */ + + MULTIPLY(tmp16, FIX(2.172734804)), /* c2+c10 */ + CONST_BITS-PASS1_BITS); + dataptr[6] = (DCTELEM) + DESCALE(tmp10 - MULTIPLY(tmp14, FIX(0.211164243)) /* c2-c6 */ + - MULTIPLY(tmp17, FIX(1.061594338)), /* c10+c14 */ + CONST_BITS-PASS1_BITS); + + /* Odd part */ + + tmp11 = MULTIPLY(tmp0 + tmp1, FIX(1.353318001)) + /* c3 */ + MULTIPLY(tmp6 - tmp7, FIX(0.410524528)); /* c13 */ + tmp12 = MULTIPLY(tmp0 + tmp2, FIX(1.247225013)) + /* c5 */ + MULTIPLY(tmp5 + tmp7, FIX(0.666655658)); /* c11 */ + tmp13 = MULTIPLY(tmp0 + tmp3, FIX(1.093201867)) + /* c7 */ + MULTIPLY(tmp4 - tmp7, FIX(0.897167586)); /* c9 */ + tmp14 = MULTIPLY(tmp1 + tmp2, FIX(0.138617169)) + /* c15 */ + MULTIPLY(tmp6 - tmp5, FIX(1.407403738)); /* c1 */ + tmp15 = MULTIPLY(tmp1 + tmp3, - FIX(0.666655658)) + /* -c11 */ + MULTIPLY(tmp4 + tmp6, - FIX(1.247225013)); /* -c5 */ + tmp16 = MULTIPLY(tmp2 + tmp3, - FIX(1.353318001)) + /* -c3 */ + MULTIPLY(tmp5 - tmp4, FIX(0.410524528)); /* c13 */ + tmp10 = tmp11 + tmp12 + tmp13 - + MULTIPLY(tmp0, FIX(2.286341144)) + /* c7+c5+c3-c1 */ + MULTIPLY(tmp7, FIX(0.779653625)); /* c15+c13-c11+c9 */ + tmp11 += tmp14 + tmp15 + MULTIPLY(tmp1, FIX(0.071888074)) /* c9-c3-c15+c11 */ + - MULTIPLY(tmp6, FIX(1.663905119)); /* c7+c13+c1-c5 */ + tmp12 += tmp14 + tmp16 - MULTIPLY(tmp2, FIX(1.125726048)) /* c7+c5+c15-c3 */ + + MULTIPLY(tmp5, FIX(1.227391138)); /* c9-c11+c1-c13 */ + tmp13 += tmp15 + tmp16 + MULTIPLY(tmp3, FIX(1.065388962)) /* c15+c3+c11-c7 */ + + MULTIPLY(tmp4, FIX(2.167985692)); /* c1+c13+c5-c9 */ + + dataptr[1] = (DCTELEM) DESCALE(tmp10, CONST_BITS-PASS1_BITS); + dataptr[3] = (DCTELEM) DESCALE(tmp11, CONST_BITS-PASS1_BITS); + dataptr[5] = (DCTELEM) DESCALE(tmp12, CONST_BITS-PASS1_BITS); + dataptr[7] = (DCTELEM) DESCALE(tmp13, CONST_BITS-PASS1_BITS); + + dataptr += DCTSIZE; /* advance pointer to next row */ + } + + /* Pass 2: process columns. + * We remove the PASS1_BITS scaling, but leave the results scaled up + * by an overall factor of 8. + * We must also scale the output by 8/16 = 1/2. + */ + + dataptr = data; + for (ctr = DCTSIZE-1; ctr >= 0; ctr--) { + /* Even part per LL&M figure 1 --- note that published figure is faulty; + * rotator "sqrt(2)*c1" should be "sqrt(2)*c6". + */ + + tmp0 = dataptr[DCTSIZE*0] + dataptr[DCTSIZE*7]; + tmp1 = dataptr[DCTSIZE*1] + dataptr[DCTSIZE*6]; + tmp2 = dataptr[DCTSIZE*2] + dataptr[DCTSIZE*5]; + tmp3 = dataptr[DCTSIZE*3] + dataptr[DCTSIZE*4]; + + tmp10 = tmp0 + tmp3; + tmp12 = tmp0 - tmp3; + tmp11 = tmp1 + tmp2; + tmp13 = tmp1 - tmp2; + + tmp0 = dataptr[DCTSIZE*0] - dataptr[DCTSIZE*7]; + tmp1 = dataptr[DCTSIZE*1] - dataptr[DCTSIZE*6]; + tmp2 = dataptr[DCTSIZE*2] - dataptr[DCTSIZE*5]; + tmp3 = dataptr[DCTSIZE*3] - dataptr[DCTSIZE*4]; + + dataptr[DCTSIZE*0] = (DCTELEM) DESCALE(tmp10 + tmp11, PASS1_BITS+1); + dataptr[DCTSIZE*4] = (DCTELEM) DESCALE(tmp10 - tmp11, PASS1_BITS+1); + + z1 = MULTIPLY(tmp12 + tmp13, FIX_0_541196100); + dataptr[DCTSIZE*2] = (DCTELEM) DESCALE(z1 + MULTIPLY(tmp12, FIX_0_765366865), + CONST_BITS+PASS1_BITS+1); + dataptr[DCTSIZE*6] = (DCTELEM) DESCALE(z1 - MULTIPLY(tmp13, FIX_1_847759065), + CONST_BITS+PASS1_BITS+1); + + /* Odd part per figure 8 --- note paper omits factor of sqrt(2). + * 8-point FDCT kernel, cK represents sqrt(2) * cos(K*pi/16). + * i0..i3 in the paper are tmp0..tmp3 here. + */ + + tmp10 = tmp0 + tmp3; + tmp11 = tmp1 + tmp2; + tmp12 = tmp0 + tmp2; + tmp13 = tmp1 + tmp3; + z1 = MULTIPLY(tmp12 + tmp13, FIX_1_175875602); /* c3 */ + + tmp0 = MULTIPLY(tmp0, FIX_1_501321110); /* c1+c3-c5-c7 */ + tmp1 = MULTIPLY(tmp1, FIX_3_072711026); /* c1+c3+c5-c7 */ + tmp2 = MULTIPLY(tmp2, FIX_2_053119869); /* c1+c3-c5+c7 */ + tmp3 = MULTIPLY(tmp3, FIX_0_298631336); /* -c1+c3+c5-c7 */ + tmp10 = MULTIPLY(tmp10, - FIX_0_899976223); /* c7-c3 */ + tmp11 = MULTIPLY(tmp11, - FIX_2_562915447); /* -c1-c3 */ + tmp12 = MULTIPLY(tmp12, - FIX_0_390180644); /* c5-c3 */ + tmp13 = MULTIPLY(tmp13, - FIX_1_961570560); /* -c3-c5 */ + + tmp12 += z1; + tmp13 += z1; + + dataptr[DCTSIZE*1] = (DCTELEM) DESCALE(tmp0 + tmp10 + tmp12, + CONST_BITS+PASS1_BITS+1); + dataptr[DCTSIZE*3] = (DCTELEM) DESCALE(tmp1 + tmp11 + tmp13, + CONST_BITS+PASS1_BITS+1); + dataptr[DCTSIZE*5] = (DCTELEM) DESCALE(tmp2 + tmp11 + tmp12, + CONST_BITS+PASS1_BITS+1); + dataptr[DCTSIZE*7] = (DCTELEM) DESCALE(tmp3 + tmp10 + tmp13, + CONST_BITS+PASS1_BITS+1); + + dataptr++; /* advance pointer to next column */ + } +} + + +/* + * Perform the forward DCT on a 14x7 sample block. + * + * 14-point FDCT in pass 1 (rows), 7-point in pass 2 (columns). + */ + +GLOBAL(void) +jpeg_fdct_14x7 (DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col) +{ + INT32 tmp0, tmp1, tmp2, tmp3, tmp4, tmp5, tmp6; + INT32 tmp10, tmp11, tmp12, tmp13, tmp14, tmp15, tmp16; + INT32 z1, z2, z3; + DCTELEM *dataptr; + JSAMPROW elemptr; + int ctr; + SHIFT_TEMPS + + /* Zero bottom row of output coefficient block. */ + MEMZERO(&data[DCTSIZE*7], SIZEOF(DCTELEM) * DCTSIZE); + + /* Pass 1: process rows. */ + /* Note results are scaled up by sqrt(8) compared to a true DCT; */ + /* furthermore, we scale the results by 2**PASS1_BITS. */ + /* 14-point FDCT kernel, cK represents sqrt(2) * cos(K*pi/28). */ + + dataptr = data; + for (ctr = 0; ctr < 7; ctr++) { + elemptr = sample_data[ctr] + start_col; + + /* Even part */ + + tmp0 = GETJSAMPLE(elemptr[0]) + GETJSAMPLE(elemptr[13]); + tmp1 = GETJSAMPLE(elemptr[1]) + GETJSAMPLE(elemptr[12]); + tmp2 = GETJSAMPLE(elemptr[2]) + GETJSAMPLE(elemptr[11]); + tmp13 = GETJSAMPLE(elemptr[3]) + GETJSAMPLE(elemptr[10]); + tmp4 = GETJSAMPLE(elemptr[4]) + GETJSAMPLE(elemptr[9]); + tmp5 = GETJSAMPLE(elemptr[5]) + GETJSAMPLE(elemptr[8]); + tmp6 = GETJSAMPLE(elemptr[6]) + GETJSAMPLE(elemptr[7]); + + tmp10 = tmp0 + tmp6; + tmp14 = tmp0 - tmp6; + tmp11 = tmp1 + tmp5; + tmp15 = tmp1 - tmp5; + tmp12 = tmp2 + tmp4; + tmp16 = tmp2 - tmp4; + + tmp0 = GETJSAMPLE(elemptr[0]) - GETJSAMPLE(elemptr[13]); + tmp1 = GETJSAMPLE(elemptr[1]) - GETJSAMPLE(elemptr[12]); + tmp2 = GETJSAMPLE(elemptr[2]) - GETJSAMPLE(elemptr[11]); + tmp3 = GETJSAMPLE(elemptr[3]) - GETJSAMPLE(elemptr[10]); + tmp4 = GETJSAMPLE(elemptr[4]) - GETJSAMPLE(elemptr[9]); + tmp5 = GETJSAMPLE(elemptr[5]) - GETJSAMPLE(elemptr[8]); + tmp6 = GETJSAMPLE(elemptr[6]) - GETJSAMPLE(elemptr[7]); + + /* Apply unsigned->signed conversion */ + dataptr[0] = (DCTELEM) + ((tmp10 + tmp11 + tmp12 + tmp13 - 14 * CENTERJSAMPLE) << PASS1_BITS); + tmp13 += tmp13; + dataptr[4] = (DCTELEM) + DESCALE(MULTIPLY(tmp10 - tmp13, FIX(1.274162392)) + /* c4 */ + MULTIPLY(tmp11 - tmp13, FIX(0.314692123)) - /* c12 */ + MULTIPLY(tmp12 - tmp13, FIX(0.881747734)), /* c8 */ + CONST_BITS-PASS1_BITS); + + tmp10 = MULTIPLY(tmp14 + tmp15, FIX(1.105676686)); /* c6 */ + + dataptr[2] = (DCTELEM) + DESCALE(tmp10 + MULTIPLY(tmp14, FIX(0.273079590)) /* c2-c6 */ + + MULTIPLY(tmp16, FIX(0.613604268)), /* c10 */ + CONST_BITS-PASS1_BITS); + dataptr[6] = (DCTELEM) + DESCALE(tmp10 - MULTIPLY(tmp15, FIX(1.719280954)) /* c6+c10 */ + - MULTIPLY(tmp16, FIX(1.378756276)), /* c2 */ + CONST_BITS-PASS1_BITS); + + /* Odd part */ + + tmp10 = tmp1 + tmp2; + tmp11 = tmp5 - tmp4; + dataptr[7] = (DCTELEM) ((tmp0 - tmp10 + tmp3 - tmp11 - tmp6) << PASS1_BITS); + tmp3 <<= CONST_BITS; + tmp10 = MULTIPLY(tmp10, - FIX(0.158341681)); /* -c13 */ + tmp11 = MULTIPLY(tmp11, FIX(1.405321284)); /* c1 */ + tmp10 += tmp11 - tmp3; + tmp11 = MULTIPLY(tmp0 + tmp2, FIX(1.197448846)) + /* c5 */ + MULTIPLY(tmp4 + tmp6, FIX(0.752406978)); /* c9 */ + dataptr[5] = (DCTELEM) + DESCALE(tmp10 + tmp11 - MULTIPLY(tmp2, FIX(2.373959773)) /* c3+c5-c13 */ + + MULTIPLY(tmp4, FIX(1.119999435)), /* c1+c11-c9 */ + CONST_BITS-PASS1_BITS); + tmp12 = MULTIPLY(tmp0 + tmp1, FIX(1.334852607)) + /* c3 */ + MULTIPLY(tmp5 - tmp6, FIX(0.467085129)); /* c11 */ + dataptr[3] = (DCTELEM) + DESCALE(tmp10 + tmp12 - MULTIPLY(tmp1, FIX(0.424103948)) /* c3-c9-c13 */ + - MULTIPLY(tmp5, FIX(3.069855259)), /* c1+c5+c11 */ + CONST_BITS-PASS1_BITS); + dataptr[1] = (DCTELEM) + DESCALE(tmp11 + tmp12 + tmp3 + tmp6 - + MULTIPLY(tmp0 + tmp6, FIX(1.126980169)), /* c3+c5-c1 */ + CONST_BITS-PASS1_BITS); + + dataptr += DCTSIZE; /* advance pointer to next row */ + } + + /* Pass 2: process columns. + * We remove the PASS1_BITS scaling, but leave the results scaled up + * by an overall factor of 8. + * We must also scale the output by (8/14)*(8/7) = 32/49, which we + * partially fold into the constant multipliers and final shifting: + * 7-point FDCT kernel, cK represents sqrt(2) * cos(K*pi/14) * 64/49. + */ + + dataptr = data; + for (ctr = DCTSIZE-1; ctr >= 0; ctr--) { + /* Even part */ + + tmp0 = dataptr[DCTSIZE*0] + dataptr[DCTSIZE*6]; + tmp1 = dataptr[DCTSIZE*1] + dataptr[DCTSIZE*5]; + tmp2 = dataptr[DCTSIZE*2] + dataptr[DCTSIZE*4]; + tmp3 = dataptr[DCTSIZE*3]; + + tmp10 = dataptr[DCTSIZE*0] - dataptr[DCTSIZE*6]; + tmp11 = dataptr[DCTSIZE*1] - dataptr[DCTSIZE*5]; + tmp12 = dataptr[DCTSIZE*2] - dataptr[DCTSIZE*4]; + + z1 = tmp0 + tmp2; + dataptr[DCTSIZE*0] = (DCTELEM) + DESCALE(MULTIPLY(z1 + tmp1 + tmp3, FIX(1.306122449)), /* 64/49 */ + CONST_BITS+PASS1_BITS+1); + tmp3 += tmp3; + z1 -= tmp3; + z1 -= tmp3; + z1 = MULTIPLY(z1, FIX(0.461784020)); /* (c2+c6-c4)/2 */ + z2 = MULTIPLY(tmp0 - tmp2, FIX(1.202428084)); /* (c2+c4-c6)/2 */ + z3 = MULTIPLY(tmp1 - tmp2, FIX(0.411026446)); /* c6 */ + dataptr[DCTSIZE*2] = (DCTELEM) DESCALE(z1 + z2 + z3, CONST_BITS+PASS1_BITS+1); + z1 -= z2; + z2 = MULTIPLY(tmp0 - tmp1, FIX(1.151670509)); /* c4 */ + dataptr[DCTSIZE*4] = (DCTELEM) + DESCALE(z2 + z3 - MULTIPLY(tmp1 - tmp3, FIX(0.923568041)), /* c2+c6-c4 */ + CONST_BITS+PASS1_BITS+1); + dataptr[DCTSIZE*6] = (DCTELEM) DESCALE(z1 + z2, CONST_BITS+PASS1_BITS+1); + + /* Odd part */ + + tmp1 = MULTIPLY(tmp10 + tmp11, FIX(1.221765677)); /* (c3+c1-c5)/2 */ + tmp2 = MULTIPLY(tmp10 - tmp11, FIX(0.222383464)); /* (c3+c5-c1)/2 */ + tmp0 = tmp1 - tmp2; + tmp1 += tmp2; + tmp2 = MULTIPLY(tmp11 + tmp12, - FIX(1.800824523)); /* -c1 */ + tmp1 += tmp2; + tmp3 = MULTIPLY(tmp10 + tmp12, FIX(0.801442310)); /* c5 */ + tmp0 += tmp3; + tmp2 += tmp3 + MULTIPLY(tmp12, FIX(2.443531355)); /* c3+c1-c5 */ + + dataptr[DCTSIZE*1] = (DCTELEM) DESCALE(tmp0, CONST_BITS+PASS1_BITS+1); + dataptr[DCTSIZE*3] = (DCTELEM) DESCALE(tmp1, CONST_BITS+PASS1_BITS+1); + dataptr[DCTSIZE*5] = (DCTELEM) DESCALE(tmp2, CONST_BITS+PASS1_BITS+1); + + dataptr++; /* advance pointer to next column */ + } +} + + +/* + * Perform the forward DCT on a 12x6 sample block. + * + * 12-point FDCT in pass 1 (rows), 6-point in pass 2 (columns). + */ + +GLOBAL(void) +jpeg_fdct_12x6 (DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col) +{ + INT32 tmp0, tmp1, tmp2, tmp3, tmp4, tmp5; + INT32 tmp10, tmp11, tmp12, tmp13, tmp14, tmp15; + DCTELEM *dataptr; + JSAMPROW elemptr; + int ctr; + SHIFT_TEMPS + + /* Zero 2 bottom rows of output coefficient block. */ + MEMZERO(&data[DCTSIZE*6], SIZEOF(DCTELEM) * DCTSIZE * 2); + + /* Pass 1: process rows. */ + /* Note results are scaled up by sqrt(8) compared to a true DCT; */ + /* furthermore, we scale the results by 2**PASS1_BITS. */ + /* 12-point FDCT kernel, cK represents sqrt(2) * cos(K*pi/24). */ + + dataptr = data; + for (ctr = 0; ctr < 6; ctr++) { + elemptr = sample_data[ctr] + start_col; + + /* Even part */ + + tmp0 = GETJSAMPLE(elemptr[0]) + GETJSAMPLE(elemptr[11]); + tmp1 = GETJSAMPLE(elemptr[1]) + GETJSAMPLE(elemptr[10]); + tmp2 = GETJSAMPLE(elemptr[2]) + GETJSAMPLE(elemptr[9]); + tmp3 = GETJSAMPLE(elemptr[3]) + GETJSAMPLE(elemptr[8]); + tmp4 = GETJSAMPLE(elemptr[4]) + GETJSAMPLE(elemptr[7]); + tmp5 = GETJSAMPLE(elemptr[5]) + GETJSAMPLE(elemptr[6]); + + tmp10 = tmp0 + tmp5; + tmp13 = tmp0 - tmp5; + tmp11 = tmp1 + tmp4; + tmp14 = tmp1 - tmp4; + tmp12 = tmp2 + tmp3; + tmp15 = tmp2 - tmp3; + + tmp0 = GETJSAMPLE(elemptr[0]) - GETJSAMPLE(elemptr[11]); + tmp1 = GETJSAMPLE(elemptr[1]) - GETJSAMPLE(elemptr[10]); + tmp2 = GETJSAMPLE(elemptr[2]) - GETJSAMPLE(elemptr[9]); + tmp3 = GETJSAMPLE(elemptr[3]) - GETJSAMPLE(elemptr[8]); + tmp4 = GETJSAMPLE(elemptr[4]) - GETJSAMPLE(elemptr[7]); + tmp5 = GETJSAMPLE(elemptr[5]) - GETJSAMPLE(elemptr[6]); + + /* Apply unsigned->signed conversion */ + dataptr[0] = (DCTELEM) + ((tmp10 + tmp11 + tmp12 - 12 * CENTERJSAMPLE) << PASS1_BITS); + dataptr[6] = (DCTELEM) ((tmp13 - tmp14 - tmp15) << PASS1_BITS); + dataptr[4] = (DCTELEM) + DESCALE(MULTIPLY(tmp10 - tmp12, FIX(1.224744871)), /* c4 */ + CONST_BITS-PASS1_BITS); + dataptr[2] = (DCTELEM) + DESCALE(tmp14 - tmp15 + MULTIPLY(tmp13 + tmp15, FIX(1.366025404)), /* c2 */ + CONST_BITS-PASS1_BITS); + + /* Odd part */ + + tmp10 = MULTIPLY(tmp1 + tmp4, FIX_0_541196100); /* c9 */ + tmp14 = tmp10 + MULTIPLY(tmp1, FIX_0_765366865); /* c3-c9 */ + tmp15 = tmp10 - MULTIPLY(tmp4, FIX_1_847759065); /* c3+c9 */ + tmp12 = MULTIPLY(tmp0 + tmp2, FIX(1.121971054)); /* c5 */ + tmp13 = MULTIPLY(tmp0 + tmp3, FIX(0.860918669)); /* c7 */ + tmp10 = tmp12 + tmp13 + tmp14 - MULTIPLY(tmp0, FIX(0.580774953)) /* c5+c7-c1 */ + + MULTIPLY(tmp5, FIX(0.184591911)); /* c11 */ + tmp11 = MULTIPLY(tmp2 + tmp3, - FIX(0.184591911)); /* -c11 */ + tmp12 += tmp11 - tmp15 - MULTIPLY(tmp2, FIX(2.339493912)) /* c1+c5-c11 */ + + MULTIPLY(tmp5, FIX(0.860918669)); /* c7 */ + tmp13 += tmp11 - tmp14 + MULTIPLY(tmp3, FIX(0.725788011)) /* c1+c11-c7 */ + - MULTIPLY(tmp5, FIX(1.121971054)); /* c5 */ + tmp11 = tmp15 + MULTIPLY(tmp0 - tmp3, FIX(1.306562965)) /* c3 */ + - MULTIPLY(tmp2 + tmp5, FIX_0_541196100); /* c9 */ + + dataptr[1] = (DCTELEM) DESCALE(tmp10, CONST_BITS-PASS1_BITS); + dataptr[3] = (DCTELEM) DESCALE(tmp11, CONST_BITS-PASS1_BITS); + dataptr[5] = (DCTELEM) DESCALE(tmp12, CONST_BITS-PASS1_BITS); + dataptr[7] = (DCTELEM) DESCALE(tmp13, CONST_BITS-PASS1_BITS); + + dataptr += DCTSIZE; /* advance pointer to next row */ + } + + /* Pass 2: process columns. + * We remove the PASS1_BITS scaling, but leave the results scaled up + * by an overall factor of 8. + * We must also scale the output by (8/12)*(8/6) = 8/9, which we + * partially fold into the constant multipliers and final shifting: + * 6-point FDCT kernel, cK represents sqrt(2) * cos(K*pi/12) * 16/9. + */ + + dataptr = data; + for (ctr = DCTSIZE-1; ctr >= 0; ctr--) { + /* Even part */ + + tmp0 = dataptr[DCTSIZE*0] + dataptr[DCTSIZE*5]; + tmp11 = dataptr[DCTSIZE*1] + dataptr[DCTSIZE*4]; + tmp2 = dataptr[DCTSIZE*2] + dataptr[DCTSIZE*3]; + + tmp10 = tmp0 + tmp2; + tmp12 = tmp0 - tmp2; + + tmp0 = dataptr[DCTSIZE*0] - dataptr[DCTSIZE*5]; + tmp1 = dataptr[DCTSIZE*1] - dataptr[DCTSIZE*4]; + tmp2 = dataptr[DCTSIZE*2] - dataptr[DCTSIZE*3]; + + dataptr[DCTSIZE*0] = (DCTELEM) + DESCALE(MULTIPLY(tmp10 + tmp11, FIX(1.777777778)), /* 16/9 */ + CONST_BITS+PASS1_BITS+1); + dataptr[DCTSIZE*2] = (DCTELEM) + DESCALE(MULTIPLY(tmp12, FIX(2.177324216)), /* c2 */ + CONST_BITS+PASS1_BITS+1); + dataptr[DCTSIZE*4] = (DCTELEM) + DESCALE(MULTIPLY(tmp10 - tmp11 - tmp11, FIX(1.257078722)), /* c4 */ + CONST_BITS+PASS1_BITS+1); + + /* Odd part */ + + tmp10 = MULTIPLY(tmp0 + tmp2, FIX(0.650711829)); /* c5 */ + + dataptr[DCTSIZE*1] = (DCTELEM) + DESCALE(tmp10 + MULTIPLY(tmp0 + tmp1, FIX(1.777777778)), /* 16/9 */ + CONST_BITS+PASS1_BITS+1); + dataptr[DCTSIZE*3] = (DCTELEM) + DESCALE(MULTIPLY(tmp0 - tmp1 - tmp2, FIX(1.777777778)), /* 16/9 */ + CONST_BITS+PASS1_BITS+1); + dataptr[DCTSIZE*5] = (DCTELEM) + DESCALE(tmp10 + MULTIPLY(tmp2 - tmp1, FIX(1.777777778)), /* 16/9 */ + CONST_BITS+PASS1_BITS+1); + + dataptr++; /* advance pointer to next column */ + } +} + + +/* + * Perform the forward DCT on a 10x5 sample block. + * + * 10-point FDCT in pass 1 (rows), 5-point in pass 2 (columns). + */ + +GLOBAL(void) +jpeg_fdct_10x5 (DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col) +{ + INT32 tmp0, tmp1, tmp2, tmp3, tmp4; + INT32 tmp10, tmp11, tmp12, tmp13, tmp14; + DCTELEM *dataptr; + JSAMPROW elemptr; + int ctr; + SHIFT_TEMPS + + /* Zero 3 bottom rows of output coefficient block. */ + MEMZERO(&data[DCTSIZE*5], SIZEOF(DCTELEM) * DCTSIZE * 3); + + /* Pass 1: process rows. */ + /* Note results are scaled up by sqrt(8) compared to a true DCT; */ + /* furthermore, we scale the results by 2**PASS1_BITS. */ + /* 10-point FDCT kernel, cK represents sqrt(2) * cos(K*pi/20). */ + + dataptr = data; + for (ctr = 0; ctr < 5; ctr++) { + elemptr = sample_data[ctr] + start_col; + + /* Even part */ + + tmp0 = GETJSAMPLE(elemptr[0]) + GETJSAMPLE(elemptr[9]); + tmp1 = GETJSAMPLE(elemptr[1]) + GETJSAMPLE(elemptr[8]); + tmp12 = GETJSAMPLE(elemptr[2]) + GETJSAMPLE(elemptr[7]); + tmp3 = GETJSAMPLE(elemptr[3]) + GETJSAMPLE(elemptr[6]); + tmp4 = GETJSAMPLE(elemptr[4]) + GETJSAMPLE(elemptr[5]); + + tmp10 = tmp0 + tmp4; + tmp13 = tmp0 - tmp4; + tmp11 = tmp1 + tmp3; + tmp14 = tmp1 - tmp3; + + tmp0 = GETJSAMPLE(elemptr[0]) - GETJSAMPLE(elemptr[9]); + tmp1 = GETJSAMPLE(elemptr[1]) - GETJSAMPLE(elemptr[8]); + tmp2 = GETJSAMPLE(elemptr[2]) - GETJSAMPLE(elemptr[7]); + tmp3 = GETJSAMPLE(elemptr[3]) - GETJSAMPLE(elemptr[6]); + tmp4 = GETJSAMPLE(elemptr[4]) - GETJSAMPLE(elemptr[5]); + + /* Apply unsigned->signed conversion */ + dataptr[0] = (DCTELEM) + ((tmp10 + tmp11 + tmp12 - 10 * CENTERJSAMPLE) << PASS1_BITS); + tmp12 += tmp12; + dataptr[4] = (DCTELEM) + DESCALE(MULTIPLY(tmp10 - tmp12, FIX(1.144122806)) - /* c4 */ + MULTIPLY(tmp11 - tmp12, FIX(0.437016024)), /* c8 */ + CONST_BITS-PASS1_BITS); + tmp10 = MULTIPLY(tmp13 + tmp14, FIX(0.831253876)); /* c6 */ + dataptr[2] = (DCTELEM) + DESCALE(tmp10 + MULTIPLY(tmp13, FIX(0.513743148)), /* c2-c6 */ + CONST_BITS-PASS1_BITS); + dataptr[6] = (DCTELEM) + DESCALE(tmp10 - MULTIPLY(tmp14, FIX(2.176250899)), /* c2+c6 */ + CONST_BITS-PASS1_BITS); + + /* Odd part */ + + tmp10 = tmp0 + tmp4; + tmp11 = tmp1 - tmp3; + dataptr[5] = (DCTELEM) ((tmp10 - tmp11 - tmp2) << PASS1_BITS); + tmp2 <<= CONST_BITS; + dataptr[1] = (DCTELEM) + DESCALE(MULTIPLY(tmp0, FIX(1.396802247)) + /* c1 */ + MULTIPLY(tmp1, FIX(1.260073511)) + tmp2 + /* c3 */ + MULTIPLY(tmp3, FIX(0.642039522)) + /* c7 */ + MULTIPLY(tmp4, FIX(0.221231742)), /* c9 */ + CONST_BITS-PASS1_BITS); + tmp12 = MULTIPLY(tmp0 - tmp4, FIX(0.951056516)) - /* (c3+c7)/2 */ + MULTIPLY(tmp1 + tmp3, FIX(0.587785252)); /* (c1-c9)/2 */ + tmp13 = MULTIPLY(tmp10 + tmp11, FIX(0.309016994)) + /* (c3-c7)/2 */ + (tmp11 << (CONST_BITS - 1)) - tmp2; + dataptr[3] = (DCTELEM) DESCALE(tmp12 + tmp13, CONST_BITS-PASS1_BITS); + dataptr[7] = (DCTELEM) DESCALE(tmp12 - tmp13, CONST_BITS-PASS1_BITS); + + dataptr += DCTSIZE; /* advance pointer to next row */ + } + + /* Pass 2: process columns. + * We remove the PASS1_BITS scaling, but leave the results scaled up + * by an overall factor of 8. + * We must also scale the output by (8/10)*(8/5) = 32/25, which we + * fold into the constant multipliers: + * 5-point FDCT kernel, cK represents sqrt(2) * cos(K*pi/10) * 32/25. + */ + + dataptr = data; + for (ctr = DCTSIZE-1; ctr >= 0; ctr--) { + /* Even part */ + + tmp0 = dataptr[DCTSIZE*0] + dataptr[DCTSIZE*4]; + tmp1 = dataptr[DCTSIZE*1] + dataptr[DCTSIZE*3]; + tmp2 = dataptr[DCTSIZE*2]; + + tmp10 = tmp0 + tmp1; + tmp11 = tmp0 - tmp1; + + tmp0 = dataptr[DCTSIZE*0] - dataptr[DCTSIZE*4]; + tmp1 = dataptr[DCTSIZE*1] - dataptr[DCTSIZE*3]; + + dataptr[DCTSIZE*0] = (DCTELEM) + DESCALE(MULTIPLY(tmp10 + tmp2, FIX(1.28)), /* 32/25 */ + CONST_BITS+PASS1_BITS); + tmp11 = MULTIPLY(tmp11, FIX(1.011928851)); /* (c2+c4)/2 */ + tmp10 -= tmp2 << 2; + tmp10 = MULTIPLY(tmp10, FIX(0.452548340)); /* (c2-c4)/2 */ + dataptr[DCTSIZE*2] = (DCTELEM) DESCALE(tmp11 + tmp10, CONST_BITS+PASS1_BITS); + dataptr[DCTSIZE*4] = (DCTELEM) DESCALE(tmp11 - tmp10, CONST_BITS+PASS1_BITS); + + /* Odd part */ + + tmp10 = MULTIPLY(tmp0 + tmp1, FIX(1.064004961)); /* c3 */ + + dataptr[DCTSIZE*1] = (DCTELEM) + DESCALE(tmp10 + MULTIPLY(tmp0, FIX(0.657591230)), /* c1-c3 */ + CONST_BITS+PASS1_BITS); + dataptr[DCTSIZE*3] = (DCTELEM) + DESCALE(tmp10 - MULTIPLY(tmp1, FIX(2.785601151)), /* c1+c3 */ + CONST_BITS+PASS1_BITS); + + dataptr++; /* advance pointer to next column */ + } +} + + +/* + * Perform the forward DCT on an 8x4 sample block. + * + * 8-point FDCT in pass 1 (rows), 4-point in pass 2 (columns). + */ + +GLOBAL(void) +jpeg_fdct_8x4 (DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col) +{ + INT32 tmp0, tmp1, tmp2, tmp3; + INT32 tmp10, tmp11, tmp12, tmp13; + INT32 z1; + DCTELEM *dataptr; + JSAMPROW elemptr; + int ctr; + SHIFT_TEMPS + + /* Zero 4 bottom rows of output coefficient block. */ + MEMZERO(&data[DCTSIZE*4], SIZEOF(DCTELEM) * DCTSIZE * 4); + + /* Pass 1: process rows. */ + /* Note results are scaled up by sqrt(8) compared to a true DCT; */ + /* furthermore, we scale the results by 2**PASS1_BITS. */ + /* We must also scale the output by 8/4 = 2, which we add here. */ + + dataptr = data; + for (ctr = 0; ctr < 4; ctr++) { + elemptr = sample_data[ctr] + start_col; + + /* Even part per LL&M figure 1 --- note that published figure is faulty; + * rotator "sqrt(2)*c1" should be "sqrt(2)*c6". + */ + + tmp0 = GETJSAMPLE(elemptr[0]) + GETJSAMPLE(elemptr[7]); + tmp1 = GETJSAMPLE(elemptr[1]) + GETJSAMPLE(elemptr[6]); + tmp2 = GETJSAMPLE(elemptr[2]) + GETJSAMPLE(elemptr[5]); + tmp3 = GETJSAMPLE(elemptr[3]) + GETJSAMPLE(elemptr[4]); + + tmp10 = tmp0 + tmp3; + tmp12 = tmp0 - tmp3; + tmp11 = tmp1 + tmp2; + tmp13 = tmp1 - tmp2; + + tmp0 = GETJSAMPLE(elemptr[0]) - GETJSAMPLE(elemptr[7]); + tmp1 = GETJSAMPLE(elemptr[1]) - GETJSAMPLE(elemptr[6]); + tmp2 = GETJSAMPLE(elemptr[2]) - GETJSAMPLE(elemptr[5]); + tmp3 = GETJSAMPLE(elemptr[3]) - GETJSAMPLE(elemptr[4]); + + /* Apply unsigned->signed conversion */ + dataptr[0] = (DCTELEM) + ((tmp10 + tmp11 - 8 * CENTERJSAMPLE) << (PASS1_BITS+1)); + dataptr[4] = (DCTELEM) ((tmp10 - tmp11) << (PASS1_BITS+1)); + + z1 = MULTIPLY(tmp12 + tmp13, FIX_0_541196100); + /* Add fudge factor here for final descale. */ + z1 += ONE << (CONST_BITS-PASS1_BITS-2); + dataptr[2] = (DCTELEM) RIGHT_SHIFT(z1 + MULTIPLY(tmp12, FIX_0_765366865), + CONST_BITS-PASS1_BITS-1); + dataptr[6] = (DCTELEM) RIGHT_SHIFT(z1 - MULTIPLY(tmp13, FIX_1_847759065), + CONST_BITS-PASS1_BITS-1); + + /* Odd part per figure 8 --- note paper omits factor of sqrt(2). + * 8-point FDCT kernel, cK represents sqrt(2) * cos(K*pi/16). + * i0..i3 in the paper are tmp0..tmp3 here. + */ + + tmp10 = tmp0 + tmp3; + tmp11 = tmp1 + tmp2; + tmp12 = tmp0 + tmp2; + tmp13 = tmp1 + tmp3; + z1 = MULTIPLY(tmp12 + tmp13, FIX_1_175875602); /* c3 */ + /* Add fudge factor here for final descale. */ + z1 += ONE << (CONST_BITS-PASS1_BITS-2); + + tmp0 = MULTIPLY(tmp0, FIX_1_501321110); /* c1+c3-c5-c7 */ + tmp1 = MULTIPLY(tmp1, FIX_3_072711026); /* c1+c3+c5-c7 */ + tmp2 = MULTIPLY(tmp2, FIX_2_053119869); /* c1+c3-c5+c7 */ + tmp3 = MULTIPLY(tmp3, FIX_0_298631336); /* -c1+c3+c5-c7 */ + tmp10 = MULTIPLY(tmp10, - FIX_0_899976223); /* c7-c3 */ + tmp11 = MULTIPLY(tmp11, - FIX_2_562915447); /* -c1-c3 */ + tmp12 = MULTIPLY(tmp12, - FIX_0_390180644); /* c5-c3 */ + tmp13 = MULTIPLY(tmp13, - FIX_1_961570560); /* -c3-c5 */ + + tmp12 += z1; + tmp13 += z1; + + dataptr[1] = (DCTELEM) + RIGHT_SHIFT(tmp0 + tmp10 + tmp12, CONST_BITS-PASS1_BITS-1); + dataptr[3] = (DCTELEM) + RIGHT_SHIFT(tmp1 + tmp11 + tmp13, CONST_BITS-PASS1_BITS-1); + dataptr[5] = (DCTELEM) + RIGHT_SHIFT(tmp2 + tmp11 + tmp12, CONST_BITS-PASS1_BITS-1); + dataptr[7] = (DCTELEM) + RIGHT_SHIFT(tmp3 + tmp10 + tmp13, CONST_BITS-PASS1_BITS-1); + + dataptr += DCTSIZE; /* advance pointer to next row */ + } + + /* Pass 2: process columns. + * We remove the PASS1_BITS scaling, but leave the results scaled up + * by an overall factor of 8. + * 4-point FDCT kernel, cK represents sqrt(2) * cos(K*pi/16). + */ + + dataptr = data; + for (ctr = DCTSIZE-1; ctr >= 0; ctr--) { + /* Even part */ + + /* Add fudge factor here for final descale. */ + tmp0 = dataptr[DCTSIZE*0] + dataptr[DCTSIZE*3] + (ONE << (PASS1_BITS-1)); + tmp1 = dataptr[DCTSIZE*1] + dataptr[DCTSIZE*2]; + + tmp10 = dataptr[DCTSIZE*0] - dataptr[DCTSIZE*3]; + tmp11 = dataptr[DCTSIZE*1] - dataptr[DCTSIZE*2]; + + dataptr[DCTSIZE*0] = (DCTELEM) RIGHT_SHIFT(tmp0 + tmp1, PASS1_BITS); + dataptr[DCTSIZE*2] = (DCTELEM) RIGHT_SHIFT(tmp0 - tmp1, PASS1_BITS); + + /* Odd part */ + + tmp0 = MULTIPLY(tmp10 + tmp11, FIX_0_541196100); /* c6 */ + /* Add fudge factor here for final descale. */ + tmp0 += ONE << (CONST_BITS+PASS1_BITS-1); + + dataptr[DCTSIZE*1] = (DCTELEM) + RIGHT_SHIFT(tmp0 + MULTIPLY(tmp10, FIX_0_765366865), /* c2-c6 */ + CONST_BITS+PASS1_BITS); + dataptr[DCTSIZE*3] = (DCTELEM) + RIGHT_SHIFT(tmp0 - MULTIPLY(tmp11, FIX_1_847759065), /* c2+c6 */ + CONST_BITS+PASS1_BITS); + + dataptr++; /* advance pointer to next column */ + } +} + + +/* + * Perform the forward DCT on a 6x3 sample block. + * + * 6-point FDCT in pass 1 (rows), 3-point in pass 2 (columns). + */ + +GLOBAL(void) +jpeg_fdct_6x3 (DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col) +{ + INT32 tmp0, tmp1, tmp2; + INT32 tmp10, tmp11, tmp12; + DCTELEM *dataptr; + JSAMPROW elemptr; + int ctr; + SHIFT_TEMPS + + /* Pre-zero output coefficient block. */ + MEMZERO(data, SIZEOF(DCTELEM) * DCTSIZE2); + + /* Pass 1: process rows. */ + /* Note results are scaled up by sqrt(8) compared to a true DCT; */ + /* furthermore, we scale the results by 2**PASS1_BITS. */ + /* We scale the results further by 2 as part of output adaption */ + /* scaling for different DCT size. */ + /* 6-point FDCT kernel, cK represents sqrt(2) * cos(K*pi/12). */ + + dataptr = data; + for (ctr = 0; ctr < 3; ctr++) { + elemptr = sample_data[ctr] + start_col; + + /* Even part */ + + tmp0 = GETJSAMPLE(elemptr[0]) + GETJSAMPLE(elemptr[5]); + tmp11 = GETJSAMPLE(elemptr[1]) + GETJSAMPLE(elemptr[4]); + tmp2 = GETJSAMPLE(elemptr[2]) + GETJSAMPLE(elemptr[3]); + + tmp10 = tmp0 + tmp2; + tmp12 = tmp0 - tmp2; + + tmp0 = GETJSAMPLE(elemptr[0]) - GETJSAMPLE(elemptr[5]); + tmp1 = GETJSAMPLE(elemptr[1]) - GETJSAMPLE(elemptr[4]); + tmp2 = GETJSAMPLE(elemptr[2]) - GETJSAMPLE(elemptr[3]); + + /* Apply unsigned->signed conversion */ + dataptr[0] = (DCTELEM) + ((tmp10 + tmp11 - 6 * CENTERJSAMPLE) << (PASS1_BITS+1)); + dataptr[2] = (DCTELEM) + DESCALE(MULTIPLY(tmp12, FIX(1.224744871)), /* c2 */ + CONST_BITS-PASS1_BITS-1); + dataptr[4] = (DCTELEM) + DESCALE(MULTIPLY(tmp10 - tmp11 - tmp11, FIX(0.707106781)), /* c4 */ + CONST_BITS-PASS1_BITS-1); + + /* Odd part */ + + tmp10 = DESCALE(MULTIPLY(tmp0 + tmp2, FIX(0.366025404)), /* c5 */ + CONST_BITS-PASS1_BITS-1); + + dataptr[1] = (DCTELEM) (tmp10 + ((tmp0 + tmp1) << (PASS1_BITS+1))); + dataptr[3] = (DCTELEM) ((tmp0 - tmp1 - tmp2) << (PASS1_BITS+1)); + dataptr[5] = (DCTELEM) (tmp10 + ((tmp2 - tmp1) << (PASS1_BITS+1))); + + dataptr += DCTSIZE; /* advance pointer to next row */ + } + + /* Pass 2: process columns. + * We remove the PASS1_BITS scaling, but leave the results scaled up + * by an overall factor of 8. + * We must also scale the output by (8/6)*(8/3) = 32/9, which we partially + * fold into the constant multipliers (other part was done in pass 1): + * 3-point FDCT kernel, cK represents sqrt(2) * cos(K*pi/6) * 16/9. + */ + + dataptr = data; + for (ctr = 0; ctr < 6; ctr++) { + /* Even part */ + + tmp0 = dataptr[DCTSIZE*0] + dataptr[DCTSIZE*2]; + tmp1 = dataptr[DCTSIZE*1]; + + tmp2 = dataptr[DCTSIZE*0] - dataptr[DCTSIZE*2]; + + dataptr[DCTSIZE*0] = (DCTELEM) + DESCALE(MULTIPLY(tmp0 + tmp1, FIX(1.777777778)), /* 16/9 */ + CONST_BITS+PASS1_BITS); + dataptr[DCTSIZE*2] = (DCTELEM) + DESCALE(MULTIPLY(tmp0 - tmp1 - tmp1, FIX(1.257078722)), /* c2 */ + CONST_BITS+PASS1_BITS); + + /* Odd part */ + + dataptr[DCTSIZE*1] = (DCTELEM) + DESCALE(MULTIPLY(tmp2, FIX(2.177324216)), /* c1 */ + CONST_BITS+PASS1_BITS); + + dataptr++; /* advance pointer to next column */ + } +} + + +/* + * Perform the forward DCT on a 4x2 sample block. + * + * 4-point FDCT in pass 1 (rows), 2-point in pass 2 (columns). + */ + +GLOBAL(void) +jpeg_fdct_4x2 (DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col) +{ + INT32 tmp0, tmp1; + INT32 tmp10, tmp11; + DCTELEM *dataptr; + JSAMPROW elemptr; + int ctr; + SHIFT_TEMPS + + /* Pre-zero output coefficient block. */ + MEMZERO(data, SIZEOF(DCTELEM) * DCTSIZE2); + + /* Pass 1: process rows. */ + /* Note results are scaled up by sqrt(8) compared to a true DCT; */ + /* furthermore, we scale the results by 2**PASS1_BITS. */ + /* We must also scale the output by (8/4)*(8/2) = 2**3, which we add here. */ + /* 4-point FDCT kernel, */ + /* cK represents sqrt(2) * cos(K*pi/16) [refers to 8-point FDCT]. */ + + dataptr = data; + for (ctr = 0; ctr < 2; ctr++) { + elemptr = sample_data[ctr] + start_col; + + /* Even part */ + + tmp0 = GETJSAMPLE(elemptr[0]) + GETJSAMPLE(elemptr[3]); + tmp1 = GETJSAMPLE(elemptr[1]) + GETJSAMPLE(elemptr[2]); + + tmp10 = GETJSAMPLE(elemptr[0]) - GETJSAMPLE(elemptr[3]); + tmp11 = GETJSAMPLE(elemptr[1]) - GETJSAMPLE(elemptr[2]); + + /* Apply unsigned->signed conversion */ + dataptr[0] = (DCTELEM) + ((tmp0 + tmp1 - 4 * CENTERJSAMPLE) << (PASS1_BITS+3)); + dataptr[2] = (DCTELEM) ((tmp0 - tmp1) << (PASS1_BITS+3)); + + /* Odd part */ + + tmp0 = MULTIPLY(tmp10 + tmp11, FIX_0_541196100); /* c6 */ + /* Add fudge factor here for final descale. */ + tmp0 += ONE << (CONST_BITS-PASS1_BITS-4); + + dataptr[1] = (DCTELEM) + RIGHT_SHIFT(tmp0 + MULTIPLY(tmp10, FIX_0_765366865), /* c2-c6 */ + CONST_BITS-PASS1_BITS-3); + dataptr[3] = (DCTELEM) + RIGHT_SHIFT(tmp0 - MULTIPLY(tmp11, FIX_1_847759065), /* c2+c6 */ + CONST_BITS-PASS1_BITS-3); + + dataptr += DCTSIZE; /* advance pointer to next row */ + } + + /* Pass 2: process columns. + * We remove the PASS1_BITS scaling, but leave the results scaled up + * by an overall factor of 8. + */ + + dataptr = data; + for (ctr = 0; ctr < 4; ctr++) { + /* Even part */ + + /* Add fudge factor here for final descale. */ + tmp0 = dataptr[DCTSIZE*0] + (ONE << (PASS1_BITS-1)); + tmp1 = dataptr[DCTSIZE*1]; + + dataptr[DCTSIZE*0] = (DCTELEM) RIGHT_SHIFT(tmp0 + tmp1, PASS1_BITS); + + /* Odd part */ + + dataptr[DCTSIZE*1] = (DCTELEM) RIGHT_SHIFT(tmp0 - tmp1, PASS1_BITS); + + dataptr++; /* advance pointer to next column */ + } +} + + +/* + * Perform the forward DCT on a 2x1 sample block. + * + * 2-point FDCT in pass 1 (rows), 1-point in pass 2 (columns). + */ + +GLOBAL(void) +jpeg_fdct_2x1 (DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col) +{ + INT32 tmp0, tmp1; + JSAMPROW elemptr; + + /* Pre-zero output coefficient block. */ + MEMZERO(data, SIZEOF(DCTELEM) * DCTSIZE2); + + elemptr = sample_data[0] + start_col; + + tmp0 = GETJSAMPLE(elemptr[0]); + tmp1 = GETJSAMPLE(elemptr[1]); + + /* We leave the results scaled up by an overall factor of 8. + * We must also scale the output by (8/2)*(8/1) = 2**5. + */ + + /* Even part */ + /* Apply unsigned->signed conversion */ + data[0] = (DCTELEM) ((tmp0 + tmp1 - 2 * CENTERJSAMPLE) << 5); + + /* Odd part */ + data[1] = (DCTELEM) ((tmp0 - tmp1) << 5); +} + + +/* + * Perform the forward DCT on an 8x16 sample block. + * + * 8-point FDCT in pass 1 (rows), 16-point in pass 2 (columns). + */ + +GLOBAL(void) +jpeg_fdct_8x16 (DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col) +{ + INT32 tmp0, tmp1, tmp2, tmp3, tmp4, tmp5, tmp6, tmp7; + INT32 tmp10, tmp11, tmp12, tmp13, tmp14, tmp15, tmp16, tmp17; + INT32 z1; + DCTELEM workspace[DCTSIZE2]; + DCTELEM *dataptr; + DCTELEM *wsptr; + JSAMPROW elemptr; + int ctr; + SHIFT_TEMPS + + /* Pass 1: process rows. */ + /* Note results are scaled up by sqrt(8) compared to a true DCT; */ + /* furthermore, we scale the results by 2**PASS1_BITS. */ + + dataptr = data; + ctr = 0; + for (;;) { + elemptr = sample_data[ctr] + start_col; + + /* Even part per LL&M figure 1 --- note that published figure is faulty; + * rotator "sqrt(2)*c1" should be "sqrt(2)*c6". + */ + + tmp0 = GETJSAMPLE(elemptr[0]) + GETJSAMPLE(elemptr[7]); + tmp1 = GETJSAMPLE(elemptr[1]) + GETJSAMPLE(elemptr[6]); + tmp2 = GETJSAMPLE(elemptr[2]) + GETJSAMPLE(elemptr[5]); + tmp3 = GETJSAMPLE(elemptr[3]) + GETJSAMPLE(elemptr[4]); + + tmp10 = tmp0 + tmp3; + tmp12 = tmp0 - tmp3; + tmp11 = tmp1 + tmp2; + tmp13 = tmp1 - tmp2; + + tmp0 = GETJSAMPLE(elemptr[0]) - GETJSAMPLE(elemptr[7]); + tmp1 = GETJSAMPLE(elemptr[1]) - GETJSAMPLE(elemptr[6]); + tmp2 = GETJSAMPLE(elemptr[2]) - GETJSAMPLE(elemptr[5]); + tmp3 = GETJSAMPLE(elemptr[3]) - GETJSAMPLE(elemptr[4]); + + /* Apply unsigned->signed conversion */ + dataptr[0] = (DCTELEM) ((tmp10 + tmp11 - 8 * CENTERJSAMPLE) << PASS1_BITS); + dataptr[4] = (DCTELEM) ((tmp10 - tmp11) << PASS1_BITS); + + z1 = MULTIPLY(tmp12 + tmp13, FIX_0_541196100); + dataptr[2] = (DCTELEM) DESCALE(z1 + MULTIPLY(tmp12, FIX_0_765366865), + CONST_BITS-PASS1_BITS); + dataptr[6] = (DCTELEM) DESCALE(z1 - MULTIPLY(tmp13, FIX_1_847759065), + CONST_BITS-PASS1_BITS); + + /* Odd part per figure 8 --- note paper omits factor of sqrt(2). + * 8-point FDCT kernel, cK represents sqrt(2) * cos(K*pi/16). + * i0..i3 in the paper are tmp0..tmp3 here. + */ + + tmp10 = tmp0 + tmp3; + tmp11 = tmp1 + tmp2; + tmp12 = tmp0 + tmp2; + tmp13 = tmp1 + tmp3; + z1 = MULTIPLY(tmp12 + tmp13, FIX_1_175875602); /* c3 */ + + tmp0 = MULTIPLY(tmp0, FIX_1_501321110); /* c1+c3-c5-c7 */ + tmp1 = MULTIPLY(tmp1, FIX_3_072711026); /* c1+c3+c5-c7 */ + tmp2 = MULTIPLY(tmp2, FIX_2_053119869); /* c1+c3-c5+c7 */ + tmp3 = MULTIPLY(tmp3, FIX_0_298631336); /* -c1+c3+c5-c7 */ + tmp10 = MULTIPLY(tmp10, - FIX_0_899976223); /* c7-c3 */ + tmp11 = MULTIPLY(tmp11, - FIX_2_562915447); /* -c1-c3 */ + tmp12 = MULTIPLY(tmp12, - FIX_0_390180644); /* c5-c3 */ + tmp13 = MULTIPLY(tmp13, - FIX_1_961570560); /* -c3-c5 */ + + tmp12 += z1; + tmp13 += z1; + + dataptr[1] = (DCTELEM) DESCALE(tmp0 + tmp10 + tmp12, CONST_BITS-PASS1_BITS); + dataptr[3] = (DCTELEM) DESCALE(tmp1 + tmp11 + tmp13, CONST_BITS-PASS1_BITS); + dataptr[5] = (DCTELEM) DESCALE(tmp2 + tmp11 + tmp12, CONST_BITS-PASS1_BITS); + dataptr[7] = (DCTELEM) DESCALE(tmp3 + tmp10 + tmp13, CONST_BITS-PASS1_BITS); + + ctr++; + + if (ctr != DCTSIZE) { + if (ctr == DCTSIZE * 2) + break; /* Done. */ + dataptr += DCTSIZE; /* advance pointer to next row */ + } else + dataptr = workspace; /* switch pointer to extended workspace */ + } + + /* Pass 2: process columns. + * We remove the PASS1_BITS scaling, but leave the results scaled up + * by an overall factor of 8. + * We must also scale the output by 8/16 = 1/2. + * 16-point FDCT kernel, cK represents sqrt(2) * cos(K*pi/32). + */ + + dataptr = data; + wsptr = workspace; + for (ctr = DCTSIZE-1; ctr >= 0; ctr--) { + /* Even part */ + + tmp0 = dataptr[DCTSIZE*0] + wsptr[DCTSIZE*7]; + tmp1 = dataptr[DCTSIZE*1] + wsptr[DCTSIZE*6]; + tmp2 = dataptr[DCTSIZE*2] + wsptr[DCTSIZE*5]; + tmp3 = dataptr[DCTSIZE*3] + wsptr[DCTSIZE*4]; + tmp4 = dataptr[DCTSIZE*4] + wsptr[DCTSIZE*3]; + tmp5 = dataptr[DCTSIZE*5] + wsptr[DCTSIZE*2]; + tmp6 = dataptr[DCTSIZE*6] + wsptr[DCTSIZE*1]; + tmp7 = dataptr[DCTSIZE*7] + wsptr[DCTSIZE*0]; + + tmp10 = tmp0 + tmp7; + tmp14 = tmp0 - tmp7; + tmp11 = tmp1 + tmp6; + tmp15 = tmp1 - tmp6; + tmp12 = tmp2 + tmp5; + tmp16 = tmp2 - tmp5; + tmp13 = tmp3 + tmp4; + tmp17 = tmp3 - tmp4; + + tmp0 = dataptr[DCTSIZE*0] - wsptr[DCTSIZE*7]; + tmp1 = dataptr[DCTSIZE*1] - wsptr[DCTSIZE*6]; + tmp2 = dataptr[DCTSIZE*2] - wsptr[DCTSIZE*5]; + tmp3 = dataptr[DCTSIZE*3] - wsptr[DCTSIZE*4]; + tmp4 = dataptr[DCTSIZE*4] - wsptr[DCTSIZE*3]; + tmp5 = dataptr[DCTSIZE*5] - wsptr[DCTSIZE*2]; + tmp6 = dataptr[DCTSIZE*6] - wsptr[DCTSIZE*1]; + tmp7 = dataptr[DCTSIZE*7] - wsptr[DCTSIZE*0]; + + dataptr[DCTSIZE*0] = (DCTELEM) + DESCALE(tmp10 + tmp11 + tmp12 + tmp13, PASS1_BITS+1); + dataptr[DCTSIZE*4] = (DCTELEM) + DESCALE(MULTIPLY(tmp10 - tmp13, FIX(1.306562965)) + /* c4[16] = c2[8] */ + MULTIPLY(tmp11 - tmp12, FIX_0_541196100), /* c12[16] = c6[8] */ + CONST_BITS+PASS1_BITS+1); + + tmp10 = MULTIPLY(tmp17 - tmp15, FIX(0.275899379)) + /* c14[16] = c7[8] */ + MULTIPLY(tmp14 - tmp16, FIX(1.387039845)); /* c2[16] = c1[8] */ + + dataptr[DCTSIZE*2] = (DCTELEM) + DESCALE(tmp10 + MULTIPLY(tmp15, FIX(1.451774982)) /* c6+c14 */ + + MULTIPLY(tmp16, FIX(2.172734804)), /* c2+c10 */ + CONST_BITS+PASS1_BITS+1); + dataptr[DCTSIZE*6] = (DCTELEM) + DESCALE(tmp10 - MULTIPLY(tmp14, FIX(0.211164243)) /* c2-c6 */ + - MULTIPLY(tmp17, FIX(1.061594338)), /* c10+c14 */ + CONST_BITS+PASS1_BITS+1); + + /* Odd part */ + + tmp11 = MULTIPLY(tmp0 + tmp1, FIX(1.353318001)) + /* c3 */ + MULTIPLY(tmp6 - tmp7, FIX(0.410524528)); /* c13 */ + tmp12 = MULTIPLY(tmp0 + tmp2, FIX(1.247225013)) + /* c5 */ + MULTIPLY(tmp5 + tmp7, FIX(0.666655658)); /* c11 */ + tmp13 = MULTIPLY(tmp0 + tmp3, FIX(1.093201867)) + /* c7 */ + MULTIPLY(tmp4 - tmp7, FIX(0.897167586)); /* c9 */ + tmp14 = MULTIPLY(tmp1 + tmp2, FIX(0.138617169)) + /* c15 */ + MULTIPLY(tmp6 - tmp5, FIX(1.407403738)); /* c1 */ + tmp15 = MULTIPLY(tmp1 + tmp3, - FIX(0.666655658)) + /* -c11 */ + MULTIPLY(tmp4 + tmp6, - FIX(1.247225013)); /* -c5 */ + tmp16 = MULTIPLY(tmp2 + tmp3, - FIX(1.353318001)) + /* -c3 */ + MULTIPLY(tmp5 - tmp4, FIX(0.410524528)); /* c13 */ + tmp10 = tmp11 + tmp12 + tmp13 - + MULTIPLY(tmp0, FIX(2.286341144)) + /* c7+c5+c3-c1 */ + MULTIPLY(tmp7, FIX(0.779653625)); /* c15+c13-c11+c9 */ + tmp11 += tmp14 + tmp15 + MULTIPLY(tmp1, FIX(0.071888074)) /* c9-c3-c15+c11 */ + - MULTIPLY(tmp6, FIX(1.663905119)); /* c7+c13+c1-c5 */ + tmp12 += tmp14 + tmp16 - MULTIPLY(tmp2, FIX(1.125726048)) /* c7+c5+c15-c3 */ + + MULTIPLY(tmp5, FIX(1.227391138)); /* c9-c11+c1-c13 */ + tmp13 += tmp15 + tmp16 + MULTIPLY(tmp3, FIX(1.065388962)) /* c15+c3+c11-c7 */ + + MULTIPLY(tmp4, FIX(2.167985692)); /* c1+c13+c5-c9 */ + + dataptr[DCTSIZE*1] = (DCTELEM) DESCALE(tmp10, CONST_BITS+PASS1_BITS+1); + dataptr[DCTSIZE*3] = (DCTELEM) DESCALE(tmp11, CONST_BITS+PASS1_BITS+1); + dataptr[DCTSIZE*5] = (DCTELEM) DESCALE(tmp12, CONST_BITS+PASS1_BITS+1); + dataptr[DCTSIZE*7] = (DCTELEM) DESCALE(tmp13, CONST_BITS+PASS1_BITS+1); + + dataptr++; /* advance pointer to next column */ + wsptr++; /* advance pointer to next column */ + } +} + + +/* + * Perform the forward DCT on a 7x14 sample block. + * + * 7-point FDCT in pass 1 (rows), 14-point in pass 2 (columns). + */ + +GLOBAL(void) +jpeg_fdct_7x14 (DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col) +{ + INT32 tmp0, tmp1, tmp2, tmp3, tmp4, tmp5, tmp6; + INT32 tmp10, tmp11, tmp12, tmp13, tmp14, tmp15, tmp16; + INT32 z1, z2, z3; + DCTELEM workspace[8*6]; + DCTELEM *dataptr; + DCTELEM *wsptr; + JSAMPROW elemptr; + int ctr; + SHIFT_TEMPS + + /* Pre-zero output coefficient block. */ + MEMZERO(data, SIZEOF(DCTELEM) * DCTSIZE2); + + /* Pass 1: process rows. */ + /* Note results are scaled up by sqrt(8) compared to a true DCT; */ + /* furthermore, we scale the results by 2**PASS1_BITS. */ + /* 7-point FDCT kernel, cK represents sqrt(2) * cos(K*pi/14). */ + + dataptr = data; + ctr = 0; + for (;;) { + elemptr = sample_data[ctr] + start_col; + + /* Even part */ + + tmp0 = GETJSAMPLE(elemptr[0]) + GETJSAMPLE(elemptr[6]); + tmp1 = GETJSAMPLE(elemptr[1]) + GETJSAMPLE(elemptr[5]); + tmp2 = GETJSAMPLE(elemptr[2]) + GETJSAMPLE(elemptr[4]); + tmp3 = GETJSAMPLE(elemptr[3]); + + tmp10 = GETJSAMPLE(elemptr[0]) - GETJSAMPLE(elemptr[6]); + tmp11 = GETJSAMPLE(elemptr[1]) - GETJSAMPLE(elemptr[5]); + tmp12 = GETJSAMPLE(elemptr[2]) - GETJSAMPLE(elemptr[4]); + + z1 = tmp0 + tmp2; + /* Apply unsigned->signed conversion */ + dataptr[0] = (DCTELEM) + ((z1 + tmp1 + tmp3 - 7 * CENTERJSAMPLE) << PASS1_BITS); + tmp3 += tmp3; + z1 -= tmp3; + z1 -= tmp3; + z1 = MULTIPLY(z1, FIX(0.353553391)); /* (c2+c6-c4)/2 */ + z2 = MULTIPLY(tmp0 - tmp2, FIX(0.920609002)); /* (c2+c4-c6)/2 */ + z3 = MULTIPLY(tmp1 - tmp2, FIX(0.314692123)); /* c6 */ + dataptr[2] = (DCTELEM) DESCALE(z1 + z2 + z3, CONST_BITS-PASS1_BITS); + z1 -= z2; + z2 = MULTIPLY(tmp0 - tmp1, FIX(0.881747734)); /* c4 */ + dataptr[4] = (DCTELEM) + DESCALE(z2 + z3 - MULTIPLY(tmp1 - tmp3, FIX(0.707106781)), /* c2+c6-c4 */ + CONST_BITS-PASS1_BITS); + dataptr[6] = (DCTELEM) DESCALE(z1 + z2, CONST_BITS-PASS1_BITS); + + /* Odd part */ + + tmp1 = MULTIPLY(tmp10 + tmp11, FIX(0.935414347)); /* (c3+c1-c5)/2 */ + tmp2 = MULTIPLY(tmp10 - tmp11, FIX(0.170262339)); /* (c3+c5-c1)/2 */ + tmp0 = tmp1 - tmp2; + tmp1 += tmp2; + tmp2 = MULTIPLY(tmp11 + tmp12, - FIX(1.378756276)); /* -c1 */ + tmp1 += tmp2; + tmp3 = MULTIPLY(tmp10 + tmp12, FIX(0.613604268)); /* c5 */ + tmp0 += tmp3; + tmp2 += tmp3 + MULTIPLY(tmp12, FIX(1.870828693)); /* c3+c1-c5 */ + + dataptr[1] = (DCTELEM) DESCALE(tmp0, CONST_BITS-PASS1_BITS); + dataptr[3] = (DCTELEM) DESCALE(tmp1, CONST_BITS-PASS1_BITS); + dataptr[5] = (DCTELEM) DESCALE(tmp2, CONST_BITS-PASS1_BITS); + + ctr++; + + if (ctr != DCTSIZE) { + if (ctr == 14) + break; /* Done. */ + dataptr += DCTSIZE; /* advance pointer to next row */ + } else + dataptr = workspace; /* switch pointer to extended workspace */ + } + + /* Pass 2: process columns. + * We remove the PASS1_BITS scaling, but leave the results scaled up + * by an overall factor of 8. + * We must also scale the output by (8/7)*(8/14) = 32/49, which we + * fold into the constant multipliers: + * 14-point FDCT kernel, cK represents sqrt(2) * cos(K*pi/28) * 32/49. + */ + + dataptr = data; + wsptr = workspace; + for (ctr = 0; ctr < 7; ctr++) { + /* Even part */ + + tmp0 = dataptr[DCTSIZE*0] + wsptr[DCTSIZE*5]; + tmp1 = dataptr[DCTSIZE*1] + wsptr[DCTSIZE*4]; + tmp2 = dataptr[DCTSIZE*2] + wsptr[DCTSIZE*3]; + tmp13 = dataptr[DCTSIZE*3] + wsptr[DCTSIZE*2]; + tmp4 = dataptr[DCTSIZE*4] + wsptr[DCTSIZE*1]; + tmp5 = dataptr[DCTSIZE*5] + wsptr[DCTSIZE*0]; + tmp6 = dataptr[DCTSIZE*6] + dataptr[DCTSIZE*7]; + + tmp10 = tmp0 + tmp6; + tmp14 = tmp0 - tmp6; + tmp11 = tmp1 + tmp5; + tmp15 = tmp1 - tmp5; + tmp12 = tmp2 + tmp4; + tmp16 = tmp2 - tmp4; + + tmp0 = dataptr[DCTSIZE*0] - wsptr[DCTSIZE*5]; + tmp1 = dataptr[DCTSIZE*1] - wsptr[DCTSIZE*4]; + tmp2 = dataptr[DCTSIZE*2] - wsptr[DCTSIZE*3]; + tmp3 = dataptr[DCTSIZE*3] - wsptr[DCTSIZE*2]; + tmp4 = dataptr[DCTSIZE*4] - wsptr[DCTSIZE*1]; + tmp5 = dataptr[DCTSIZE*5] - wsptr[DCTSIZE*0]; + tmp6 = dataptr[DCTSIZE*6] - dataptr[DCTSIZE*7]; + + dataptr[DCTSIZE*0] = (DCTELEM) + DESCALE(MULTIPLY(tmp10 + tmp11 + tmp12 + tmp13, + FIX(0.653061224)), /* 32/49 */ + CONST_BITS+PASS1_BITS); + tmp13 += tmp13; + dataptr[DCTSIZE*4] = (DCTELEM) + DESCALE(MULTIPLY(tmp10 - tmp13, FIX(0.832106052)) + /* c4 */ + MULTIPLY(tmp11 - tmp13, FIX(0.205513223)) - /* c12 */ + MULTIPLY(tmp12 - tmp13, FIX(0.575835255)), /* c8 */ + CONST_BITS+PASS1_BITS); + + tmp10 = MULTIPLY(tmp14 + tmp15, FIX(0.722074570)); /* c6 */ + + dataptr[DCTSIZE*2] = (DCTELEM) + DESCALE(tmp10 + MULTIPLY(tmp14, FIX(0.178337691)) /* c2-c6 */ + + MULTIPLY(tmp16, FIX(0.400721155)), /* c10 */ + CONST_BITS+PASS1_BITS); + dataptr[DCTSIZE*6] = (DCTELEM) + DESCALE(tmp10 - MULTIPLY(tmp15, FIX(1.122795725)) /* c6+c10 */ + - MULTIPLY(tmp16, FIX(0.900412262)), /* c2 */ + CONST_BITS+PASS1_BITS); + + /* Odd part */ + + tmp10 = tmp1 + tmp2; + tmp11 = tmp5 - tmp4; + dataptr[DCTSIZE*7] = (DCTELEM) + DESCALE(MULTIPLY(tmp0 - tmp10 + tmp3 - tmp11 - tmp6, + FIX(0.653061224)), /* 32/49 */ + CONST_BITS+PASS1_BITS); + tmp3 = MULTIPLY(tmp3 , FIX(0.653061224)); /* 32/49 */ + tmp10 = MULTIPLY(tmp10, - FIX(0.103406812)); /* -c13 */ + tmp11 = MULTIPLY(tmp11, FIX(0.917760839)); /* c1 */ + tmp10 += tmp11 - tmp3; + tmp11 = MULTIPLY(tmp0 + tmp2, FIX(0.782007410)) + /* c5 */ + MULTIPLY(tmp4 + tmp6, FIX(0.491367823)); /* c9 */ + dataptr[DCTSIZE*5] = (DCTELEM) + DESCALE(tmp10 + tmp11 - MULTIPLY(tmp2, FIX(1.550341076)) /* c3+c5-c13 */ + + MULTIPLY(tmp4, FIX(0.731428202)), /* c1+c11-c9 */ + CONST_BITS+PASS1_BITS); + tmp12 = MULTIPLY(tmp0 + tmp1, FIX(0.871740478)) + /* c3 */ + MULTIPLY(tmp5 - tmp6, FIX(0.305035186)); /* c11 */ + dataptr[DCTSIZE*3] = (DCTELEM) + DESCALE(tmp10 + tmp12 - MULTIPLY(tmp1, FIX(0.276965844)) /* c3-c9-c13 */ + - MULTIPLY(tmp5, FIX(2.004803435)), /* c1+c5+c11 */ + CONST_BITS+PASS1_BITS); + dataptr[DCTSIZE*1] = (DCTELEM) + DESCALE(tmp11 + tmp12 + tmp3 + - MULTIPLY(tmp0, FIX(0.735987049)) /* c3+c5-c1 */ + - MULTIPLY(tmp6, FIX(0.082925825)), /* c9-c11-c13 */ + CONST_BITS+PASS1_BITS); + + dataptr++; /* advance pointer to next column */ + wsptr++; /* advance pointer to next column */ + } +} + + +/* + * Perform the forward DCT on a 6x12 sample block. + * + * 6-point FDCT in pass 1 (rows), 12-point in pass 2 (columns). + */ + +GLOBAL(void) +jpeg_fdct_6x12 (DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col) +{ + INT32 tmp0, tmp1, tmp2, tmp3, tmp4, tmp5; + INT32 tmp10, tmp11, tmp12, tmp13, tmp14, tmp15; + DCTELEM workspace[8*4]; + DCTELEM *dataptr; + DCTELEM *wsptr; + JSAMPROW elemptr; + int ctr; + SHIFT_TEMPS + + /* Pre-zero output coefficient block. */ + MEMZERO(data, SIZEOF(DCTELEM) * DCTSIZE2); + + /* Pass 1: process rows. */ + /* Note results are scaled up by sqrt(8) compared to a true DCT; */ + /* furthermore, we scale the results by 2**PASS1_BITS. */ + /* 6-point FDCT kernel, cK represents sqrt(2) * cos(K*pi/12). */ + + dataptr = data; + ctr = 0; + for (;;) { + elemptr = sample_data[ctr] + start_col; + + /* Even part */ + + tmp0 = GETJSAMPLE(elemptr[0]) + GETJSAMPLE(elemptr[5]); + tmp11 = GETJSAMPLE(elemptr[1]) + GETJSAMPLE(elemptr[4]); + tmp2 = GETJSAMPLE(elemptr[2]) + GETJSAMPLE(elemptr[3]); + + tmp10 = tmp0 + tmp2; + tmp12 = tmp0 - tmp2; + + tmp0 = GETJSAMPLE(elemptr[0]) - GETJSAMPLE(elemptr[5]); + tmp1 = GETJSAMPLE(elemptr[1]) - GETJSAMPLE(elemptr[4]); + tmp2 = GETJSAMPLE(elemptr[2]) - GETJSAMPLE(elemptr[3]); + + /* Apply unsigned->signed conversion */ + dataptr[0] = (DCTELEM) + ((tmp10 + tmp11 - 6 * CENTERJSAMPLE) << PASS1_BITS); + dataptr[2] = (DCTELEM) + DESCALE(MULTIPLY(tmp12, FIX(1.224744871)), /* c2 */ + CONST_BITS-PASS1_BITS); + dataptr[4] = (DCTELEM) + DESCALE(MULTIPLY(tmp10 - tmp11 - tmp11, FIX(0.707106781)), /* c4 */ + CONST_BITS-PASS1_BITS); + + /* Odd part */ + + tmp10 = DESCALE(MULTIPLY(tmp0 + tmp2, FIX(0.366025404)), /* c5 */ + CONST_BITS-PASS1_BITS); + + dataptr[1] = (DCTELEM) (tmp10 + ((tmp0 + tmp1) << PASS1_BITS)); + dataptr[3] = (DCTELEM) ((tmp0 - tmp1 - tmp2) << PASS1_BITS); + dataptr[5] = (DCTELEM) (tmp10 + ((tmp2 - tmp1) << PASS1_BITS)); + + ctr++; + + if (ctr != DCTSIZE) { + if (ctr == 12) + break; /* Done. */ + dataptr += DCTSIZE; /* advance pointer to next row */ + } else + dataptr = workspace; /* switch pointer to extended workspace */ + } + + /* Pass 2: process columns. + * We remove the PASS1_BITS scaling, but leave the results scaled up + * by an overall factor of 8. + * We must also scale the output by (8/6)*(8/12) = 8/9, which we + * fold into the constant multipliers: + * 12-point FDCT kernel, cK represents sqrt(2) * cos(K*pi/24) * 8/9. + */ + + dataptr = data; + wsptr = workspace; + for (ctr = 0; ctr < 6; ctr++) { + /* Even part */ + + tmp0 = dataptr[DCTSIZE*0] + wsptr[DCTSIZE*3]; + tmp1 = dataptr[DCTSIZE*1] + wsptr[DCTSIZE*2]; + tmp2 = dataptr[DCTSIZE*2] + wsptr[DCTSIZE*1]; + tmp3 = dataptr[DCTSIZE*3] + wsptr[DCTSIZE*0]; + tmp4 = dataptr[DCTSIZE*4] + dataptr[DCTSIZE*7]; + tmp5 = dataptr[DCTSIZE*5] + dataptr[DCTSIZE*6]; + + tmp10 = tmp0 + tmp5; + tmp13 = tmp0 - tmp5; + tmp11 = tmp1 + tmp4; + tmp14 = tmp1 - tmp4; + tmp12 = tmp2 + tmp3; + tmp15 = tmp2 - tmp3; + + tmp0 = dataptr[DCTSIZE*0] - wsptr[DCTSIZE*3]; + tmp1 = dataptr[DCTSIZE*1] - wsptr[DCTSIZE*2]; + tmp2 = dataptr[DCTSIZE*2] - wsptr[DCTSIZE*1]; + tmp3 = dataptr[DCTSIZE*3] - wsptr[DCTSIZE*0]; + tmp4 = dataptr[DCTSIZE*4] - dataptr[DCTSIZE*7]; + tmp5 = dataptr[DCTSIZE*5] - dataptr[DCTSIZE*6]; + + dataptr[DCTSIZE*0] = (DCTELEM) + DESCALE(MULTIPLY(tmp10 + tmp11 + tmp12, FIX(0.888888889)), /* 8/9 */ + CONST_BITS+PASS1_BITS); + dataptr[DCTSIZE*6] = (DCTELEM) + DESCALE(MULTIPLY(tmp13 - tmp14 - tmp15, FIX(0.888888889)), /* 8/9 */ + CONST_BITS+PASS1_BITS); + dataptr[DCTSIZE*4] = (DCTELEM) + DESCALE(MULTIPLY(tmp10 - tmp12, FIX(1.088662108)), /* c4 */ + CONST_BITS+PASS1_BITS); + dataptr[DCTSIZE*2] = (DCTELEM) + DESCALE(MULTIPLY(tmp14 - tmp15, FIX(0.888888889)) + /* 8/9 */ + MULTIPLY(tmp13 + tmp15, FIX(1.214244803)), /* c2 */ + CONST_BITS+PASS1_BITS); + + /* Odd part */ + + tmp10 = MULTIPLY(tmp1 + tmp4, FIX(0.481063200)); /* c9 */ + tmp14 = tmp10 + MULTIPLY(tmp1, FIX(0.680326102)); /* c3-c9 */ + tmp15 = tmp10 - MULTIPLY(tmp4, FIX(1.642452502)); /* c3+c9 */ + tmp12 = MULTIPLY(tmp0 + tmp2, FIX(0.997307603)); /* c5 */ + tmp13 = MULTIPLY(tmp0 + tmp3, FIX(0.765261039)); /* c7 */ + tmp10 = tmp12 + tmp13 + tmp14 - MULTIPLY(tmp0, FIX(0.516244403)) /* c5+c7-c1 */ + + MULTIPLY(tmp5, FIX(0.164081699)); /* c11 */ + tmp11 = MULTIPLY(tmp2 + tmp3, - FIX(0.164081699)); /* -c11 */ + tmp12 += tmp11 - tmp15 - MULTIPLY(tmp2, FIX(2.079550144)) /* c1+c5-c11 */ + + MULTIPLY(tmp5, FIX(0.765261039)); /* c7 */ + tmp13 += tmp11 - tmp14 + MULTIPLY(tmp3, FIX(0.645144899)) /* c1+c11-c7 */ + - MULTIPLY(tmp5, FIX(0.997307603)); /* c5 */ + tmp11 = tmp15 + MULTIPLY(tmp0 - tmp3, FIX(1.161389302)) /* c3 */ + - MULTIPLY(tmp2 + tmp5, FIX(0.481063200)); /* c9 */ + + dataptr[DCTSIZE*1] = (DCTELEM) DESCALE(tmp10, CONST_BITS+PASS1_BITS); + dataptr[DCTSIZE*3] = (DCTELEM) DESCALE(tmp11, CONST_BITS+PASS1_BITS); + dataptr[DCTSIZE*5] = (DCTELEM) DESCALE(tmp12, CONST_BITS+PASS1_BITS); + dataptr[DCTSIZE*7] = (DCTELEM) DESCALE(tmp13, CONST_BITS+PASS1_BITS); + + dataptr++; /* advance pointer to next column */ + wsptr++; /* advance pointer to next column */ + } +} + + +/* + * Perform the forward DCT on a 5x10 sample block. + * + * 5-point FDCT in pass 1 (rows), 10-point in pass 2 (columns). + */ + +GLOBAL(void) +jpeg_fdct_5x10 (DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col) +{ + INT32 tmp0, tmp1, tmp2, tmp3, tmp4; + INT32 tmp10, tmp11, tmp12, tmp13, tmp14; + DCTELEM workspace[8*2]; + DCTELEM *dataptr; + DCTELEM *wsptr; + JSAMPROW elemptr; + int ctr; + SHIFT_TEMPS + + /* Pre-zero output coefficient block. */ + MEMZERO(data, SIZEOF(DCTELEM) * DCTSIZE2); + + /* Pass 1: process rows. */ + /* Note results are scaled up by sqrt(8) compared to a true DCT; */ + /* furthermore, we scale the results by 2**PASS1_BITS. */ + /* 5-point FDCT kernel, cK represents sqrt(2) * cos(K*pi/10). */ + + dataptr = data; + ctr = 0; + for (;;) { + elemptr = sample_data[ctr] + start_col; + + /* Even part */ + + tmp0 = GETJSAMPLE(elemptr[0]) + GETJSAMPLE(elemptr[4]); + tmp1 = GETJSAMPLE(elemptr[1]) + GETJSAMPLE(elemptr[3]); + tmp2 = GETJSAMPLE(elemptr[2]); + + tmp10 = tmp0 + tmp1; + tmp11 = tmp0 - tmp1; + + tmp0 = GETJSAMPLE(elemptr[0]) - GETJSAMPLE(elemptr[4]); + tmp1 = GETJSAMPLE(elemptr[1]) - GETJSAMPLE(elemptr[3]); + + /* Apply unsigned->signed conversion */ + dataptr[0] = (DCTELEM) + ((tmp10 + tmp2 - 5 * CENTERJSAMPLE) << PASS1_BITS); + tmp11 = MULTIPLY(tmp11, FIX(0.790569415)); /* (c2+c4)/2 */ + tmp10 -= tmp2 << 2; + tmp10 = MULTIPLY(tmp10, FIX(0.353553391)); /* (c2-c4)/2 */ + dataptr[2] = (DCTELEM) DESCALE(tmp11 + tmp10, CONST_BITS-PASS1_BITS); + dataptr[4] = (DCTELEM) DESCALE(tmp11 - tmp10, CONST_BITS-PASS1_BITS); + + /* Odd part */ + + tmp10 = MULTIPLY(tmp0 + tmp1, FIX(0.831253876)); /* c3 */ + + dataptr[1] = (DCTELEM) + DESCALE(tmp10 + MULTIPLY(tmp0, FIX(0.513743148)), /* c1-c3 */ + CONST_BITS-PASS1_BITS); + dataptr[3] = (DCTELEM) + DESCALE(tmp10 - MULTIPLY(tmp1, FIX(2.176250899)), /* c1+c3 */ + CONST_BITS-PASS1_BITS); + + ctr++; + + if (ctr != DCTSIZE) { + if (ctr == 10) + break; /* Done. */ + dataptr += DCTSIZE; /* advance pointer to next row */ + } else + dataptr = workspace; /* switch pointer to extended workspace */ + } + + /* Pass 2: process columns. + * We remove the PASS1_BITS scaling, but leave the results scaled up + * by an overall factor of 8. + * We must also scale the output by (8/5)*(8/10) = 32/25, which we + * fold into the constant multipliers: + * 10-point FDCT kernel, cK represents sqrt(2) * cos(K*pi/20) * 32/25. + */ + + dataptr = data; + wsptr = workspace; + for (ctr = 0; ctr < 5; ctr++) { + /* Even part */ + + tmp0 = dataptr[DCTSIZE*0] + wsptr[DCTSIZE*1]; + tmp1 = dataptr[DCTSIZE*1] + wsptr[DCTSIZE*0]; + tmp12 = dataptr[DCTSIZE*2] + dataptr[DCTSIZE*7]; + tmp3 = dataptr[DCTSIZE*3] + dataptr[DCTSIZE*6]; + tmp4 = dataptr[DCTSIZE*4] + dataptr[DCTSIZE*5]; + + tmp10 = tmp0 + tmp4; + tmp13 = tmp0 - tmp4; + tmp11 = tmp1 + tmp3; + tmp14 = tmp1 - tmp3; + + tmp0 = dataptr[DCTSIZE*0] - wsptr[DCTSIZE*1]; + tmp1 = dataptr[DCTSIZE*1] - wsptr[DCTSIZE*0]; + tmp2 = dataptr[DCTSIZE*2] - dataptr[DCTSIZE*7]; + tmp3 = dataptr[DCTSIZE*3] - dataptr[DCTSIZE*6]; + tmp4 = dataptr[DCTSIZE*4] - dataptr[DCTSIZE*5]; + + dataptr[DCTSIZE*0] = (DCTELEM) + DESCALE(MULTIPLY(tmp10 + tmp11 + tmp12, FIX(1.28)), /* 32/25 */ + CONST_BITS+PASS1_BITS); + tmp12 += tmp12; + dataptr[DCTSIZE*4] = (DCTELEM) + DESCALE(MULTIPLY(tmp10 - tmp12, FIX(1.464477191)) - /* c4 */ + MULTIPLY(tmp11 - tmp12, FIX(0.559380511)), /* c8 */ + CONST_BITS+PASS1_BITS); + tmp10 = MULTIPLY(tmp13 + tmp14, FIX(1.064004961)); /* c6 */ + dataptr[DCTSIZE*2] = (DCTELEM) + DESCALE(tmp10 + MULTIPLY(tmp13, FIX(0.657591230)), /* c2-c6 */ + CONST_BITS+PASS1_BITS); + dataptr[DCTSIZE*6] = (DCTELEM) + DESCALE(tmp10 - MULTIPLY(tmp14, FIX(2.785601151)), /* c2+c6 */ + CONST_BITS+PASS1_BITS); + + /* Odd part */ + + tmp10 = tmp0 + tmp4; + tmp11 = tmp1 - tmp3; + dataptr[DCTSIZE*5] = (DCTELEM) + DESCALE(MULTIPLY(tmp10 - tmp11 - tmp2, FIX(1.28)), /* 32/25 */ + CONST_BITS+PASS1_BITS); + tmp2 = MULTIPLY(tmp2, FIX(1.28)); /* 32/25 */ + dataptr[DCTSIZE*1] = (DCTELEM) + DESCALE(MULTIPLY(tmp0, FIX(1.787906876)) + /* c1 */ + MULTIPLY(tmp1, FIX(1.612894094)) + tmp2 + /* c3 */ + MULTIPLY(tmp3, FIX(0.821810588)) + /* c7 */ + MULTIPLY(tmp4, FIX(0.283176630)), /* c9 */ + CONST_BITS+PASS1_BITS); + tmp12 = MULTIPLY(tmp0 - tmp4, FIX(1.217352341)) - /* (c3+c7)/2 */ + MULTIPLY(tmp1 + tmp3, FIX(0.752365123)); /* (c1-c9)/2 */ + tmp13 = MULTIPLY(tmp10 + tmp11, FIX(0.395541753)) + /* (c3-c7)/2 */ + MULTIPLY(tmp11, FIX(0.64)) - tmp2; /* 16/25 */ + dataptr[DCTSIZE*3] = (DCTELEM) DESCALE(tmp12 + tmp13, CONST_BITS+PASS1_BITS); + dataptr[DCTSIZE*7] = (DCTELEM) DESCALE(tmp12 - tmp13, CONST_BITS+PASS1_BITS); + + dataptr++; /* advance pointer to next column */ + wsptr++; /* advance pointer to next column */ + } +} + + +/* + * Perform the forward DCT on a 4x8 sample block. + * + * 4-point FDCT in pass 1 (rows), 8-point in pass 2 (columns). + */ + +GLOBAL(void) +jpeg_fdct_4x8 (DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col) +{ + INT32 tmp0, tmp1, tmp2, tmp3; + INT32 tmp10, tmp11, tmp12, tmp13; + INT32 z1; + DCTELEM *dataptr; + JSAMPROW elemptr; + int ctr; + SHIFT_TEMPS + + /* Pre-zero output coefficient block. */ + MEMZERO(data, SIZEOF(DCTELEM) * DCTSIZE2); + + /* Pass 1: process rows. */ + /* Note results are scaled up by sqrt(8) compared to a true DCT; */ + /* furthermore, we scale the results by 2**PASS1_BITS. */ + /* We must also scale the output by 8/4 = 2, which we add here. */ + /* 4-point FDCT kernel, cK represents sqrt(2) * cos(K*pi/16). */ + + dataptr = data; + for (ctr = 0; ctr < DCTSIZE; ctr++) { + elemptr = sample_data[ctr] + start_col; + + /* Even part */ + + tmp0 = GETJSAMPLE(elemptr[0]) + GETJSAMPLE(elemptr[3]); + tmp1 = GETJSAMPLE(elemptr[1]) + GETJSAMPLE(elemptr[2]); + + tmp10 = GETJSAMPLE(elemptr[0]) - GETJSAMPLE(elemptr[3]); + tmp11 = GETJSAMPLE(elemptr[1]) - GETJSAMPLE(elemptr[2]); + + /* Apply unsigned->signed conversion */ + dataptr[0] = (DCTELEM) + ((tmp0 + tmp1 - 4 * CENTERJSAMPLE) << (PASS1_BITS+1)); + dataptr[2] = (DCTELEM) ((tmp0 - tmp1) << (PASS1_BITS+1)); + + /* Odd part */ + + tmp0 = MULTIPLY(tmp10 + tmp11, FIX_0_541196100); /* c6 */ + /* Add fudge factor here for final descale. */ + tmp0 += ONE << (CONST_BITS-PASS1_BITS-2); + + dataptr[1] = (DCTELEM) + RIGHT_SHIFT(tmp0 + MULTIPLY(tmp10, FIX_0_765366865), /* c2-c6 */ + CONST_BITS-PASS1_BITS-1); + dataptr[3] = (DCTELEM) + RIGHT_SHIFT(tmp0 - MULTIPLY(tmp11, FIX_1_847759065), /* c2+c6 */ + CONST_BITS-PASS1_BITS-1); + + dataptr += DCTSIZE; /* advance pointer to next row */ + } + + /* Pass 2: process columns. + * We remove the PASS1_BITS scaling, but leave the results scaled up + * by an overall factor of 8. + */ + + dataptr = data; + for (ctr = 0; ctr < 4; ctr++) { + /* Even part per LL&M figure 1 --- note that published figure is faulty; + * rotator "sqrt(2)*c1" should be "sqrt(2)*c6". + */ + + tmp0 = dataptr[DCTSIZE*0] + dataptr[DCTSIZE*7]; + tmp1 = dataptr[DCTSIZE*1] + dataptr[DCTSIZE*6]; + tmp2 = dataptr[DCTSIZE*2] + dataptr[DCTSIZE*5]; + tmp3 = dataptr[DCTSIZE*3] + dataptr[DCTSIZE*4]; + + /* Add fudge factor here for final descale. */ + tmp10 = tmp0 + tmp3 + (ONE << (PASS1_BITS-1)); + tmp12 = tmp0 - tmp3; + tmp11 = tmp1 + tmp2; + tmp13 = tmp1 - tmp2; + + tmp0 = dataptr[DCTSIZE*0] - dataptr[DCTSIZE*7]; + tmp1 = dataptr[DCTSIZE*1] - dataptr[DCTSIZE*6]; + tmp2 = dataptr[DCTSIZE*2] - dataptr[DCTSIZE*5]; + tmp3 = dataptr[DCTSIZE*3] - dataptr[DCTSIZE*4]; + + dataptr[DCTSIZE*0] = (DCTELEM) RIGHT_SHIFT(tmp10 + tmp11, PASS1_BITS); + dataptr[DCTSIZE*4] = (DCTELEM) RIGHT_SHIFT(tmp10 - tmp11, PASS1_BITS); + + z1 = MULTIPLY(tmp12 + tmp13, FIX_0_541196100); + /* Add fudge factor here for final descale. */ + z1 += ONE << (CONST_BITS+PASS1_BITS-1); + dataptr[DCTSIZE*2] = (DCTELEM) + RIGHT_SHIFT(z1 + MULTIPLY(tmp12, FIX_0_765366865), CONST_BITS+PASS1_BITS); + dataptr[DCTSIZE*6] = (DCTELEM) + RIGHT_SHIFT(z1 - MULTIPLY(tmp13, FIX_1_847759065), CONST_BITS+PASS1_BITS); + + /* Odd part per figure 8 --- note paper omits factor of sqrt(2). + * 8-point FDCT kernel, cK represents sqrt(2) * cos(K*pi/16). + * i0..i3 in the paper are tmp0..tmp3 here. + */ + + tmp10 = tmp0 + tmp3; + tmp11 = tmp1 + tmp2; + tmp12 = tmp0 + tmp2; + tmp13 = tmp1 + tmp3; + z1 = MULTIPLY(tmp12 + tmp13, FIX_1_175875602); /* c3 */ + /* Add fudge factor here for final descale. */ + z1 += ONE << (CONST_BITS+PASS1_BITS-1); + + tmp0 = MULTIPLY(tmp0, FIX_1_501321110); /* c1+c3-c5-c7 */ + tmp1 = MULTIPLY(tmp1, FIX_3_072711026); /* c1+c3+c5-c7 */ + tmp2 = MULTIPLY(tmp2, FIX_2_053119869); /* c1+c3-c5+c7 */ + tmp3 = MULTIPLY(tmp3, FIX_0_298631336); /* -c1+c3+c5-c7 */ + tmp10 = MULTIPLY(tmp10, - FIX_0_899976223); /* c7-c3 */ + tmp11 = MULTIPLY(tmp11, - FIX_2_562915447); /* -c1-c3 */ + tmp12 = MULTIPLY(tmp12, - FIX_0_390180644); /* c5-c3 */ + tmp13 = MULTIPLY(tmp13, - FIX_1_961570560); /* -c3-c5 */ + + tmp12 += z1; + tmp13 += z1; + + dataptr[DCTSIZE*1] = (DCTELEM) + RIGHT_SHIFT(tmp0 + tmp10 + tmp12, CONST_BITS+PASS1_BITS); + dataptr[DCTSIZE*3] = (DCTELEM) + RIGHT_SHIFT(tmp1 + tmp11 + tmp13, CONST_BITS+PASS1_BITS); + dataptr[DCTSIZE*5] = (DCTELEM) + RIGHT_SHIFT(tmp2 + tmp11 + tmp12, CONST_BITS+PASS1_BITS); + dataptr[DCTSIZE*7] = (DCTELEM) + RIGHT_SHIFT(tmp3 + tmp10 + tmp13, CONST_BITS+PASS1_BITS); + + dataptr++; /* advance pointer to next column */ + } +} + + +/* + * Perform the forward DCT on a 3x6 sample block. + * + * 3-point FDCT in pass 1 (rows), 6-point in pass 2 (columns). + */ + +GLOBAL(void) +jpeg_fdct_3x6 (DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col) +{ + INT32 tmp0, tmp1, tmp2; + INT32 tmp10, tmp11, tmp12; + DCTELEM *dataptr; + JSAMPROW elemptr; + int ctr; + SHIFT_TEMPS + + /* Pre-zero output coefficient block. */ + MEMZERO(data, SIZEOF(DCTELEM) * DCTSIZE2); + + /* Pass 1: process rows. */ + /* Note results are scaled up by sqrt(8) compared to a true DCT; */ + /* furthermore, we scale the results by 2**PASS1_BITS. */ + /* We scale the results further by 2 as part of output adaption */ + /* scaling for different DCT size. */ + /* 3-point FDCT kernel, cK represents sqrt(2) * cos(K*pi/6). */ + + dataptr = data; + for (ctr = 0; ctr < 6; ctr++) { + elemptr = sample_data[ctr] + start_col; + + /* Even part */ + + tmp0 = GETJSAMPLE(elemptr[0]) + GETJSAMPLE(elemptr[2]); + tmp1 = GETJSAMPLE(elemptr[1]); + + tmp2 = GETJSAMPLE(elemptr[0]) - GETJSAMPLE(elemptr[2]); + + /* Apply unsigned->signed conversion */ + dataptr[0] = (DCTELEM) + ((tmp0 + tmp1 - 3 * CENTERJSAMPLE) << (PASS1_BITS+1)); + dataptr[2] = (DCTELEM) + DESCALE(MULTIPLY(tmp0 - tmp1 - tmp1, FIX(0.707106781)), /* c2 */ + CONST_BITS-PASS1_BITS-1); + + /* Odd part */ + + dataptr[1] = (DCTELEM) + DESCALE(MULTIPLY(tmp2, FIX(1.224744871)), /* c1 */ + CONST_BITS-PASS1_BITS-1); + + dataptr += DCTSIZE; /* advance pointer to next row */ + } + + /* Pass 2: process columns. + * We remove the PASS1_BITS scaling, but leave the results scaled up + * by an overall factor of 8. + * We must also scale the output by (8/6)*(8/3) = 32/9, which we partially + * fold into the constant multipliers (other part was done in pass 1): + * 6-point FDCT kernel, cK represents sqrt(2) * cos(K*pi/12) * 16/9. + */ + + dataptr = data; + for (ctr = 0; ctr < 3; ctr++) { + /* Even part */ + + tmp0 = dataptr[DCTSIZE*0] + dataptr[DCTSIZE*5]; + tmp11 = dataptr[DCTSIZE*1] + dataptr[DCTSIZE*4]; + tmp2 = dataptr[DCTSIZE*2] + dataptr[DCTSIZE*3]; + + tmp10 = tmp0 + tmp2; + tmp12 = tmp0 - tmp2; + + tmp0 = dataptr[DCTSIZE*0] - dataptr[DCTSIZE*5]; + tmp1 = dataptr[DCTSIZE*1] - dataptr[DCTSIZE*4]; + tmp2 = dataptr[DCTSIZE*2] - dataptr[DCTSIZE*3]; + + dataptr[DCTSIZE*0] = (DCTELEM) + DESCALE(MULTIPLY(tmp10 + tmp11, FIX(1.777777778)), /* 16/9 */ + CONST_BITS+PASS1_BITS); + dataptr[DCTSIZE*2] = (DCTELEM) + DESCALE(MULTIPLY(tmp12, FIX(2.177324216)), /* c2 */ + CONST_BITS+PASS1_BITS); + dataptr[DCTSIZE*4] = (DCTELEM) + DESCALE(MULTIPLY(tmp10 - tmp11 - tmp11, FIX(1.257078722)), /* c4 */ + CONST_BITS+PASS1_BITS); + + /* Odd part */ + + tmp10 = MULTIPLY(tmp0 + tmp2, FIX(0.650711829)); /* c5 */ + + dataptr[DCTSIZE*1] = (DCTELEM) + DESCALE(tmp10 + MULTIPLY(tmp0 + tmp1, FIX(1.777777778)), /* 16/9 */ + CONST_BITS+PASS1_BITS); + dataptr[DCTSIZE*3] = (DCTELEM) + DESCALE(MULTIPLY(tmp0 - tmp1 - tmp2, FIX(1.777777778)), /* 16/9 */ + CONST_BITS+PASS1_BITS); + dataptr[DCTSIZE*5] = (DCTELEM) + DESCALE(tmp10 + MULTIPLY(tmp2 - tmp1, FIX(1.777777778)), /* 16/9 */ + CONST_BITS+PASS1_BITS); + + dataptr++; /* advance pointer to next column */ + } +} + + +/* + * Perform the forward DCT on a 2x4 sample block. + * + * 2-point FDCT in pass 1 (rows), 4-point in pass 2 (columns). + */ + +GLOBAL(void) +jpeg_fdct_2x4 (DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col) +{ + INT32 tmp0, tmp1; + INT32 tmp10, tmp11; + DCTELEM *dataptr; + JSAMPROW elemptr; + int ctr; + SHIFT_TEMPS + + /* Pre-zero output coefficient block. */ + MEMZERO(data, SIZEOF(DCTELEM) * DCTSIZE2); + + /* Pass 1: process rows. */ + /* Note results are scaled up by sqrt(8) compared to a true DCT. */ + /* We must also scale the output by (8/2)*(8/4) = 2**3, which we add here. */ + + dataptr = data; + for (ctr = 0; ctr < 4; ctr++) { + elemptr = sample_data[ctr] + start_col; + + /* Even part */ + + tmp0 = GETJSAMPLE(elemptr[0]); + tmp1 = GETJSAMPLE(elemptr[1]); + + /* Apply unsigned->signed conversion */ + dataptr[0] = (DCTELEM) ((tmp0 + tmp1 - 2 * CENTERJSAMPLE) << 3); + + /* Odd part */ + + dataptr[1] = (DCTELEM) ((tmp0 - tmp1) << 3); + + dataptr += DCTSIZE; /* advance pointer to next row */ + } + + /* Pass 2: process columns. + * We leave the results scaled up by an overall factor of 8. + * 4-point FDCT kernel, + * cK represents sqrt(2) * cos(K*pi/16) [refers to 8-point FDCT]. + */ + + dataptr = data; + for (ctr = 0; ctr < 2; ctr++) { + /* Even part */ + + tmp0 = dataptr[DCTSIZE*0] + dataptr[DCTSIZE*3]; + tmp1 = dataptr[DCTSIZE*1] + dataptr[DCTSIZE*2]; + + tmp10 = dataptr[DCTSIZE*0] - dataptr[DCTSIZE*3]; + tmp11 = dataptr[DCTSIZE*1] - dataptr[DCTSIZE*2]; + + dataptr[DCTSIZE*0] = (DCTELEM) (tmp0 + tmp1); + dataptr[DCTSIZE*2] = (DCTELEM) (tmp0 - tmp1); + + /* Odd part */ + + tmp0 = MULTIPLY(tmp10 + tmp11, FIX_0_541196100); /* c6 */ + /* Add fudge factor here for final descale. */ + tmp0 += ONE << (CONST_BITS-1); + + dataptr[DCTSIZE*1] = (DCTELEM) + RIGHT_SHIFT(tmp0 + MULTIPLY(tmp10, FIX_0_765366865), /* c2-c6 */ + CONST_BITS); + dataptr[DCTSIZE*3] = (DCTELEM) + RIGHT_SHIFT(tmp0 - MULTIPLY(tmp11, FIX_1_847759065), /* c2+c6 */ + CONST_BITS); + + dataptr++; /* advance pointer to next column */ + } +} + + +/* + * Perform the forward DCT on a 1x2 sample block. + * + * 1-point FDCT in pass 1 (rows), 2-point in pass 2 (columns). + */ + +GLOBAL(void) +jpeg_fdct_1x2 (DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col) +{ + INT32 tmp0, tmp1; + + /* Pre-zero output coefficient block. */ + MEMZERO(data, SIZEOF(DCTELEM) * DCTSIZE2); + + tmp0 = GETJSAMPLE(sample_data[0][start_col]); + tmp1 = GETJSAMPLE(sample_data[1][start_col]); + + /* We leave the results scaled up by an overall factor of 8. + * We must also scale the output by (8/1)*(8/2) = 2**5. + */ + + /* Even part */ + /* Apply unsigned->signed conversion */ + data[DCTSIZE*0] = (DCTELEM) ((tmp0 + tmp1 - 2 * CENTERJSAMPLE) << 5); + + /* Odd part */ + data[DCTSIZE*1] = (DCTELEM) ((tmp0 - tmp1) << 5); +} + +#endif /* DCT_SCALING_SUPPORTED */ +#endif /* DCT_ISLOW_SUPPORTED */ diff --git a/jpeg/jidctflt.c b/jpeg/jidctflt.c new file mode 100644 index 0000000..23ae9d3 --- /dev/null +++ b/jpeg/jidctflt.c @@ -0,0 +1,235 @@ +/* + * jidctflt.c + * + * Copyright (C) 1994-1998, Thomas G. Lane. + * Modified 2010 by Guido Vollbeding. + * This file is part of the Independent JPEG Group's software. + * For conditions of distribution and use, see the accompanying README file. + * + * This file contains a floating-point implementation of the + * inverse DCT (Discrete Cosine Transform). In the IJG code, this routine + * must also perform dequantization of the input coefficients. + * + * This implementation should be more accurate than either of the integer + * IDCT implementations. However, it may not give the same results on all + * machines because of differences in roundoff behavior. Speed will depend + * on the hardware's floating point capacity. + * + * A 2-D IDCT can be done by 1-D IDCT on each column followed by 1-D IDCT + * on each row (or vice versa, but it's more convenient to emit a row at + * a time). Direct algorithms are also available, but they are much more + * complex and seem not to be any faster when reduced to code. + * + * This implementation is based on Arai, Agui, and Nakajima's algorithm for + * scaled DCT. Their original paper (Trans. IEICE E-71(11):1095) is in + * Japanese, but the algorithm is described in the Pennebaker & Mitchell + * JPEG textbook (see REFERENCES section in file README). The following code + * is based directly on figure 4-8 in P&M. + * While an 8-point DCT cannot be done in less than 11 multiplies, it is + * possible to arrange the computation so that many of the multiplies are + * simple scalings of the final outputs. These multiplies can then be + * folded into the multiplications or divisions by the JPEG quantization + * table entries. The AA&N method leaves only 5 multiplies and 29 adds + * to be done in the DCT itself. + * The primary disadvantage of this method is that with a fixed-point + * implementation, accuracy is lost due to imprecise representation of the + * scaled quantization values. However, that problem does not arise if + * we use floating point arithmetic. + */ + +#define JPEG_INTERNALS +#include "jinclude.h" +#include "jpeglib.h" +#include "jdct.h" /* Private declarations for DCT subsystem */ + +#ifdef DCT_FLOAT_SUPPORTED + + +/* + * This module is specialized to the case DCTSIZE = 8. + */ + +#if DCTSIZE != 8 + Sorry, this code only copes with 8x8 DCTs. /* deliberate syntax err */ +#endif + + +/* Dequantize a coefficient by multiplying it by the multiplier-table + * entry; produce a float result. + */ + +#define DEQUANTIZE(coef,quantval) (((FAST_FLOAT) (coef)) * (quantval)) + + +/* + * Perform dequantization and inverse DCT on one block of coefficients. + */ + +GLOBAL(void) +jpeg_idct_float (j_decompress_ptr cinfo, jpeg_component_info * compptr, + JCOEFPTR coef_block, + JSAMPARRAY output_buf, JDIMENSION output_col) +{ + FAST_FLOAT tmp0, tmp1, tmp2, tmp3, tmp4, tmp5, tmp6, tmp7; + FAST_FLOAT tmp10, tmp11, tmp12, tmp13; + FAST_FLOAT z5, z10, z11, z12, z13; + JCOEFPTR inptr; + FLOAT_MULT_TYPE * quantptr; + FAST_FLOAT * wsptr; + JSAMPROW outptr; + JSAMPLE *range_limit = cinfo->sample_range_limit; + int ctr; + FAST_FLOAT workspace[DCTSIZE2]; /* buffers data between passes */ + + /* Pass 1: process columns from input, store into work array. */ + + inptr = coef_block; + quantptr = (FLOAT_MULT_TYPE *) compptr->dct_table; + wsptr = workspace; + for (ctr = DCTSIZE; ctr > 0; ctr--) { + /* Due to quantization, we will usually find that many of the input + * coefficients are zero, especially the AC terms. We can exploit this + * by short-circuiting the IDCT calculation for any column in which all + * the AC terms are zero. In that case each output is equal to the + * DC coefficient (with scale factor as needed). + * With typical images and quantization tables, half or more of the + * column DCT calculations can be simplified this way. + */ + + if (inptr[DCTSIZE*1] == 0 && inptr[DCTSIZE*2] == 0 && + inptr[DCTSIZE*3] == 0 && inptr[DCTSIZE*4] == 0 && + inptr[DCTSIZE*5] == 0 && inptr[DCTSIZE*6] == 0 && + inptr[DCTSIZE*7] == 0) { + /* AC terms all zero */ + FAST_FLOAT dcval = DEQUANTIZE(inptr[DCTSIZE*0], quantptr[DCTSIZE*0]); + + wsptr[DCTSIZE*0] = dcval; + wsptr[DCTSIZE*1] = dcval; + wsptr[DCTSIZE*2] = dcval; + wsptr[DCTSIZE*3] = dcval; + wsptr[DCTSIZE*4] = dcval; + wsptr[DCTSIZE*5] = dcval; + wsptr[DCTSIZE*6] = dcval; + wsptr[DCTSIZE*7] = dcval; + + inptr++; /* advance pointers to next column */ + quantptr++; + wsptr++; + continue; + } + + /* Even part */ + + tmp0 = DEQUANTIZE(inptr[DCTSIZE*0], quantptr[DCTSIZE*0]); + tmp1 = DEQUANTIZE(inptr[DCTSIZE*2], quantptr[DCTSIZE*2]); + tmp2 = DEQUANTIZE(inptr[DCTSIZE*4], quantptr[DCTSIZE*4]); + tmp3 = DEQUANTIZE(inptr[DCTSIZE*6], quantptr[DCTSIZE*6]); + + tmp10 = tmp0 + tmp2; /* phase 3 */ + tmp11 = tmp0 - tmp2; + + tmp13 = tmp1 + tmp3; /* phases 5-3 */ + tmp12 = (tmp1 - tmp3) * ((FAST_FLOAT) 1.414213562) - tmp13; /* 2*c4 */ + + tmp0 = tmp10 + tmp13; /* phase 2 */ + tmp3 = tmp10 - tmp13; + tmp1 = tmp11 + tmp12; + tmp2 = tmp11 - tmp12; + + /* Odd part */ + + tmp4 = DEQUANTIZE(inptr[DCTSIZE*1], quantptr[DCTSIZE*1]); + tmp5 = DEQUANTIZE(inptr[DCTSIZE*3], quantptr[DCTSIZE*3]); + tmp6 = DEQUANTIZE(inptr[DCTSIZE*5], quantptr[DCTSIZE*5]); + tmp7 = DEQUANTIZE(inptr[DCTSIZE*7], quantptr[DCTSIZE*7]); + + z13 = tmp6 + tmp5; /* phase 6 */ + z10 = tmp6 - tmp5; + z11 = tmp4 + tmp7; + z12 = tmp4 - tmp7; + + tmp7 = z11 + z13; /* phase 5 */ + tmp11 = (z11 - z13) * ((FAST_FLOAT) 1.414213562); /* 2*c4 */ + + z5 = (z10 + z12) * ((FAST_FLOAT) 1.847759065); /* 2*c2 */ + tmp10 = z5 - z12 * ((FAST_FLOAT) 1.082392200); /* 2*(c2-c6) */ + tmp12 = z5 - z10 * ((FAST_FLOAT) 2.613125930); /* 2*(c2+c6) */ + + tmp6 = tmp12 - tmp7; /* phase 2 */ + tmp5 = tmp11 - tmp6; + tmp4 = tmp10 - tmp5; + + wsptr[DCTSIZE*0] = tmp0 + tmp7; + wsptr[DCTSIZE*7] = tmp0 - tmp7; + wsptr[DCTSIZE*1] = tmp1 + tmp6; + wsptr[DCTSIZE*6] = tmp1 - tmp6; + wsptr[DCTSIZE*2] = tmp2 + tmp5; + wsptr[DCTSIZE*5] = tmp2 - tmp5; + wsptr[DCTSIZE*3] = tmp3 + tmp4; + wsptr[DCTSIZE*4] = tmp3 - tmp4; + + inptr++; /* advance pointers to next column */ + quantptr++; + wsptr++; + } + + /* Pass 2: process rows from work array, store into output array. */ + + wsptr = workspace; + for (ctr = 0; ctr < DCTSIZE; ctr++) { + outptr = output_buf[ctr] + output_col; + /* Rows of zeroes can be exploited in the same way as we did with columns. + * However, the column calculation has created many nonzero AC terms, so + * the simplification applies less often (typically 5% to 10% of the time). + * And testing floats for zero is relatively expensive, so we don't bother. + */ + + /* Even part */ + + /* Apply signed->unsigned and prepare float->int conversion */ + z5 = wsptr[0] + ((FAST_FLOAT) CENTERJSAMPLE + (FAST_FLOAT) 0.5); + tmp10 = z5 + wsptr[4]; + tmp11 = z5 - wsptr[4]; + + tmp13 = wsptr[2] + wsptr[6]; + tmp12 = (wsptr[2] - wsptr[6]) * ((FAST_FLOAT) 1.414213562) - tmp13; + + tmp0 = tmp10 + tmp13; + tmp3 = tmp10 - tmp13; + tmp1 = tmp11 + tmp12; + tmp2 = tmp11 - tmp12; + + /* Odd part */ + + z13 = wsptr[5] + wsptr[3]; + z10 = wsptr[5] - wsptr[3]; + z11 = wsptr[1] + wsptr[7]; + z12 = wsptr[1] - wsptr[7]; + + tmp7 = z11 + z13; + tmp11 = (z11 - z13) * ((FAST_FLOAT) 1.414213562); + + z5 = (z10 + z12) * ((FAST_FLOAT) 1.847759065); /* 2*c2 */ + tmp10 = z5 - z12 * ((FAST_FLOAT) 1.082392200); /* 2*(c2-c6) */ + tmp12 = z5 - z10 * ((FAST_FLOAT) 2.613125930); /* 2*(c2+c6) */ + + tmp6 = tmp12 - tmp7; + tmp5 = tmp11 - tmp6; + tmp4 = tmp10 - tmp5; + + /* Final output stage: float->int conversion and range-limit */ + + outptr[0] = range_limit[((int) (tmp0 + tmp7)) & RANGE_MASK]; + outptr[7] = range_limit[((int) (tmp0 - tmp7)) & RANGE_MASK]; + outptr[1] = range_limit[((int) (tmp1 + tmp6)) & RANGE_MASK]; + outptr[6] = range_limit[((int) (tmp1 - tmp6)) & RANGE_MASK]; + outptr[2] = range_limit[((int) (tmp2 + tmp5)) & RANGE_MASK]; + outptr[5] = range_limit[((int) (tmp2 - tmp5)) & RANGE_MASK]; + outptr[3] = range_limit[((int) (tmp3 + tmp4)) & RANGE_MASK]; + outptr[4] = range_limit[((int) (tmp3 - tmp4)) & RANGE_MASK]; + + wsptr += DCTSIZE; /* advance pointer to next row */ + } +} + +#endif /* DCT_FLOAT_SUPPORTED */ diff --git a/jpeg/jidctfst.c b/jpeg/jidctfst.c new file mode 100644 index 0000000..dba4216 --- /dev/null +++ b/jpeg/jidctfst.c @@ -0,0 +1,368 @@ +/* + * jidctfst.c + * + * Copyright (C) 1994-1998, Thomas G. Lane. + * This file is part of the Independent JPEG Group's software. + * For conditions of distribution and use, see the accompanying README file. + * + * This file contains a fast, not so accurate integer implementation of the + * inverse DCT (Discrete Cosine Transform). In the IJG code, this routine + * must also perform dequantization of the input coefficients. + * + * A 2-D IDCT can be done by 1-D IDCT on each column followed by 1-D IDCT + * on each row (or vice versa, but it's more convenient to emit a row at + * a time). Direct algorithms are also available, but they are much more + * complex and seem not to be any faster when reduced to code. + * + * This implementation is based on Arai, Agui, and Nakajima's algorithm for + * scaled DCT. Their original paper (Trans. IEICE E-71(11):1095) is in + * Japanese, but the algorithm is described in the Pennebaker & Mitchell + * JPEG textbook (see REFERENCES section in file README). The following code + * is based directly on figure 4-8 in P&M. + * While an 8-point DCT cannot be done in less than 11 multiplies, it is + * possible to arrange the computation so that many of the multiplies are + * simple scalings of the final outputs. These multiplies can then be + * folded into the multiplications or divisions by the JPEG quantization + * table entries. The AA&N method leaves only 5 multiplies and 29 adds + * to be done in the DCT itself. + * The primary disadvantage of this method is that with fixed-point math, + * accuracy is lost due to imprecise representation of the scaled + * quantization values. The smaller the quantization table entry, the less + * precise the scaled value, so this implementation does worse with high- + * quality-setting files than with low-quality ones. + */ + +#define JPEG_INTERNALS +#include "jinclude.h" +#include "jpeglib.h" +#include "jdct.h" /* Private declarations for DCT subsystem */ + +#ifdef DCT_IFAST_SUPPORTED + + +/* + * This module is specialized to the case DCTSIZE = 8. + */ + +#if DCTSIZE != 8 + Sorry, this code only copes with 8x8 DCTs. /* deliberate syntax err */ +#endif + + +/* Scaling decisions are generally the same as in the LL&M algorithm; + * see jidctint.c for more details. However, we choose to descale + * (right shift) multiplication products as soon as they are formed, + * rather than carrying additional fractional bits into subsequent additions. + * This compromises accuracy slightly, but it lets us save a few shifts. + * More importantly, 16-bit arithmetic is then adequate (for 8-bit samples) + * everywhere except in the multiplications proper; this saves a good deal + * of work on 16-bit-int machines. + * + * The dequantized coefficients are not integers because the AA&N scaling + * factors have been incorporated. We represent them scaled up by PASS1_BITS, + * so that the first and second IDCT rounds have the same input scaling. + * For 8-bit JSAMPLEs, we choose IFAST_SCALE_BITS = PASS1_BITS so as to + * avoid a descaling shift; this compromises accuracy rather drastically + * for small quantization table entries, but it saves a lot of shifts. + * For 12-bit JSAMPLEs, there's no hope of using 16x16 multiplies anyway, + * so we use a much larger scaling factor to preserve accuracy. + * + * A final compromise is to represent the multiplicative constants to only + * 8 fractional bits, rather than 13. This saves some shifting work on some + * machines, and may also reduce the cost of multiplication (since there + * are fewer one-bits in the constants). + */ + +#if BITS_IN_JSAMPLE == 8 +#define CONST_BITS 8 +#define PASS1_BITS 2 +#else +#define CONST_BITS 8 +#define PASS1_BITS 1 /* lose a little precision to avoid overflow */ +#endif + +/* Some C compilers fail to reduce "FIX(constant)" at compile time, thus + * causing a lot of useless floating-point operations at run time. + * To get around this we use the following pre-calculated constants. + * If you change CONST_BITS you may want to add appropriate values. + * (With a reasonable C compiler, you can just rely on the FIX() macro...) + */ + +#if CONST_BITS == 8 +#define FIX_1_082392200 ((INT32) 277) /* FIX(1.082392200) */ +#define FIX_1_414213562 ((INT32) 362) /* FIX(1.414213562) */ +#define FIX_1_847759065 ((INT32) 473) /* FIX(1.847759065) */ +#define FIX_2_613125930 ((INT32) 669) /* FIX(2.613125930) */ +#else +#define FIX_1_082392200 FIX(1.082392200) +#define FIX_1_414213562 FIX(1.414213562) +#define FIX_1_847759065 FIX(1.847759065) +#define FIX_2_613125930 FIX(2.613125930) +#endif + + +/* We can gain a little more speed, with a further compromise in accuracy, + * by omitting the addition in a descaling shift. This yields an incorrectly + * rounded result half the time... + */ + +#ifndef USE_ACCURATE_ROUNDING +#undef DESCALE +#define DESCALE(x,n) RIGHT_SHIFT(x, n) +#endif + + +/* Multiply a DCTELEM variable by an INT32 constant, and immediately + * descale to yield a DCTELEM result. + */ + +#define MULTIPLY(var,const) ((DCTELEM) DESCALE((var) * (const), CONST_BITS)) + + +/* Dequantize a coefficient by multiplying it by the multiplier-table + * entry; produce a DCTELEM result. For 8-bit data a 16x16->16 + * multiplication will do. For 12-bit data, the multiplier table is + * declared INT32, so a 32-bit multiply will be used. + */ + +#if BITS_IN_JSAMPLE == 8 +#define DEQUANTIZE(coef,quantval) (((IFAST_MULT_TYPE) (coef)) * (quantval)) +#else +#define DEQUANTIZE(coef,quantval) \ + DESCALE((coef)*(quantval), IFAST_SCALE_BITS-PASS1_BITS) +#endif + + +/* Like DESCALE, but applies to a DCTELEM and produces an int. + * We assume that int right shift is unsigned if INT32 right shift is. + */ + +#ifdef RIGHT_SHIFT_IS_UNSIGNED +#define ISHIFT_TEMPS DCTELEM ishift_temp; +#if BITS_IN_JSAMPLE == 8 +#define DCTELEMBITS 16 /* DCTELEM may be 16 or 32 bits */ +#else +#define DCTELEMBITS 32 /* DCTELEM must be 32 bits */ +#endif +#define IRIGHT_SHIFT(x,shft) \ + ((ishift_temp = (x)) < 0 ? \ + (ishift_temp >> (shft)) | ((~((DCTELEM) 0)) << (DCTELEMBITS-(shft))) : \ + (ishift_temp >> (shft))) +#else +#define ISHIFT_TEMPS +#define IRIGHT_SHIFT(x,shft) ((x) >> (shft)) +#endif + +#ifdef USE_ACCURATE_ROUNDING +#define IDESCALE(x,n) ((int) IRIGHT_SHIFT((x) + (1 << ((n)-1)), n)) +#else +#define IDESCALE(x,n) ((int) IRIGHT_SHIFT(x, n)) +#endif + + +/* + * Perform dequantization and inverse DCT on one block of coefficients. + */ + +GLOBAL(void) +jpeg_idct_ifast (j_decompress_ptr cinfo, jpeg_component_info * compptr, + JCOEFPTR coef_block, + JSAMPARRAY output_buf, JDIMENSION output_col) +{ + DCTELEM tmp0, tmp1, tmp2, tmp3, tmp4, tmp5, tmp6, tmp7; + DCTELEM tmp10, tmp11, tmp12, tmp13; + DCTELEM z5, z10, z11, z12, z13; + JCOEFPTR inptr; + IFAST_MULT_TYPE * quantptr; + int * wsptr; + JSAMPROW outptr; + JSAMPLE *range_limit = IDCT_range_limit(cinfo); + int ctr; + int workspace[DCTSIZE2]; /* buffers data between passes */ + SHIFT_TEMPS /* for DESCALE */ + ISHIFT_TEMPS /* for IDESCALE */ + + /* Pass 1: process columns from input, store into work array. */ + + inptr = coef_block; + quantptr = (IFAST_MULT_TYPE *) compptr->dct_table; + wsptr = workspace; + for (ctr = DCTSIZE; ctr > 0; ctr--) { + /* Due to quantization, we will usually find that many of the input + * coefficients are zero, especially the AC terms. We can exploit this + * by short-circuiting the IDCT calculation for any column in which all + * the AC terms are zero. In that case each output is equal to the + * DC coefficient (with scale factor as needed). + * With typical images and quantization tables, half or more of the + * column DCT calculations can be simplified this way. + */ + + if (inptr[DCTSIZE*1] == 0 && inptr[DCTSIZE*2] == 0 && + inptr[DCTSIZE*3] == 0 && inptr[DCTSIZE*4] == 0 && + inptr[DCTSIZE*5] == 0 && inptr[DCTSIZE*6] == 0 && + inptr[DCTSIZE*7] == 0) { + /* AC terms all zero */ + int dcval = (int) DEQUANTIZE(inptr[DCTSIZE*0], quantptr[DCTSIZE*0]); + + wsptr[DCTSIZE*0] = dcval; + wsptr[DCTSIZE*1] = dcval; + wsptr[DCTSIZE*2] = dcval; + wsptr[DCTSIZE*3] = dcval; + wsptr[DCTSIZE*4] = dcval; + wsptr[DCTSIZE*5] = dcval; + wsptr[DCTSIZE*6] = dcval; + wsptr[DCTSIZE*7] = dcval; + + inptr++; /* advance pointers to next column */ + quantptr++; + wsptr++; + continue; + } + + /* Even part */ + + tmp0 = DEQUANTIZE(inptr[DCTSIZE*0], quantptr[DCTSIZE*0]); + tmp1 = DEQUANTIZE(inptr[DCTSIZE*2], quantptr[DCTSIZE*2]); + tmp2 = DEQUANTIZE(inptr[DCTSIZE*4], quantptr[DCTSIZE*4]); + tmp3 = DEQUANTIZE(inptr[DCTSIZE*6], quantptr[DCTSIZE*6]); + + tmp10 = tmp0 + tmp2; /* phase 3 */ + tmp11 = tmp0 - tmp2; + + tmp13 = tmp1 + tmp3; /* phases 5-3 */ + tmp12 = MULTIPLY(tmp1 - tmp3, FIX_1_414213562) - tmp13; /* 2*c4 */ + + tmp0 = tmp10 + tmp13; /* phase 2 */ + tmp3 = tmp10 - tmp13; + tmp1 = tmp11 + tmp12; + tmp2 = tmp11 - tmp12; + + /* Odd part */ + + tmp4 = DEQUANTIZE(inptr[DCTSIZE*1], quantptr[DCTSIZE*1]); + tmp5 = DEQUANTIZE(inptr[DCTSIZE*3], quantptr[DCTSIZE*3]); + tmp6 = DEQUANTIZE(inptr[DCTSIZE*5], quantptr[DCTSIZE*5]); + tmp7 = DEQUANTIZE(inptr[DCTSIZE*7], quantptr[DCTSIZE*7]); + + z13 = tmp6 + tmp5; /* phase 6 */ + z10 = tmp6 - tmp5; + z11 = tmp4 + tmp7; + z12 = tmp4 - tmp7; + + tmp7 = z11 + z13; /* phase 5 */ + tmp11 = MULTIPLY(z11 - z13, FIX_1_414213562); /* 2*c4 */ + + z5 = MULTIPLY(z10 + z12, FIX_1_847759065); /* 2*c2 */ + tmp10 = MULTIPLY(z12, FIX_1_082392200) - z5; /* 2*(c2-c6) */ + tmp12 = MULTIPLY(z10, - FIX_2_613125930) + z5; /* -2*(c2+c6) */ + + tmp6 = tmp12 - tmp7; /* phase 2 */ + tmp5 = tmp11 - tmp6; + tmp4 = tmp10 + tmp5; + + wsptr[DCTSIZE*0] = (int) (tmp0 + tmp7); + wsptr[DCTSIZE*7] = (int) (tmp0 - tmp7); + wsptr[DCTSIZE*1] = (int) (tmp1 + tmp6); + wsptr[DCTSIZE*6] = (int) (tmp1 - tmp6); + wsptr[DCTSIZE*2] = (int) (tmp2 + tmp5); + wsptr[DCTSIZE*5] = (int) (tmp2 - tmp5); + wsptr[DCTSIZE*4] = (int) (tmp3 + tmp4); + wsptr[DCTSIZE*3] = (int) (tmp3 - tmp4); + + inptr++; /* advance pointers to next column */ + quantptr++; + wsptr++; + } + + /* Pass 2: process rows from work array, store into output array. */ + /* Note that we must descale the results by a factor of 8 == 2**3, */ + /* and also undo the PASS1_BITS scaling. */ + + wsptr = workspace; + for (ctr = 0; ctr < DCTSIZE; ctr++) { + outptr = output_buf[ctr] + output_col; + /* Rows of zeroes can be exploited in the same way as we did with columns. + * However, the column calculation has created many nonzero AC terms, so + * the simplification applies less often (typically 5% to 10% of the time). + * On machines with very fast multiplication, it's possible that the + * test takes more time than it's worth. In that case this section + * may be commented out. + */ + +#ifndef NO_ZERO_ROW_TEST + if (wsptr[1] == 0 && wsptr[2] == 0 && wsptr[3] == 0 && wsptr[4] == 0 && + wsptr[5] == 0 && wsptr[6] == 0 && wsptr[7] == 0) { + /* AC terms all zero */ + JSAMPLE dcval = range_limit[IDESCALE(wsptr[0], PASS1_BITS+3) + & RANGE_MASK]; + + outptr[0] = dcval; + outptr[1] = dcval; + outptr[2] = dcval; + outptr[3] = dcval; + outptr[4] = dcval; + outptr[5] = dcval; + outptr[6] = dcval; + outptr[7] = dcval; + + wsptr += DCTSIZE; /* advance pointer to next row */ + continue; + } +#endif + + /* Even part */ + + tmp10 = ((DCTELEM) wsptr[0] + (DCTELEM) wsptr[4]); + tmp11 = ((DCTELEM) wsptr[0] - (DCTELEM) wsptr[4]); + + tmp13 = ((DCTELEM) wsptr[2] + (DCTELEM) wsptr[6]); + tmp12 = MULTIPLY((DCTELEM) wsptr[2] - (DCTELEM) wsptr[6], FIX_1_414213562) + - tmp13; + + tmp0 = tmp10 + tmp13; + tmp3 = tmp10 - tmp13; + tmp1 = tmp11 + tmp12; + tmp2 = tmp11 - tmp12; + + /* Odd part */ + + z13 = (DCTELEM) wsptr[5] + (DCTELEM) wsptr[3]; + z10 = (DCTELEM) wsptr[5] - (DCTELEM) wsptr[3]; + z11 = (DCTELEM) wsptr[1] + (DCTELEM) wsptr[7]; + z12 = (DCTELEM) wsptr[1] - (DCTELEM) wsptr[7]; + + tmp7 = z11 + z13; /* phase 5 */ + tmp11 = MULTIPLY(z11 - z13, FIX_1_414213562); /* 2*c4 */ + + z5 = MULTIPLY(z10 + z12, FIX_1_847759065); /* 2*c2 */ + tmp10 = MULTIPLY(z12, FIX_1_082392200) - z5; /* 2*(c2-c6) */ + tmp12 = MULTIPLY(z10, - FIX_2_613125930) + z5; /* -2*(c2+c6) */ + + tmp6 = tmp12 - tmp7; /* phase 2 */ + tmp5 = tmp11 - tmp6; + tmp4 = tmp10 + tmp5; + + /* Final output stage: scale down by a factor of 8 and range-limit */ + + outptr[0] = range_limit[IDESCALE(tmp0 + tmp7, PASS1_BITS+3) + & RANGE_MASK]; + outptr[7] = range_limit[IDESCALE(tmp0 - tmp7, PASS1_BITS+3) + & RANGE_MASK]; + outptr[1] = range_limit[IDESCALE(tmp1 + tmp6, PASS1_BITS+3) + & RANGE_MASK]; + outptr[6] = range_limit[IDESCALE(tmp1 - tmp6, PASS1_BITS+3) + & RANGE_MASK]; + outptr[2] = range_limit[IDESCALE(tmp2 + tmp5, PASS1_BITS+3) + & RANGE_MASK]; + outptr[5] = range_limit[IDESCALE(tmp2 - tmp5, PASS1_BITS+3) + & RANGE_MASK]; + outptr[4] = range_limit[IDESCALE(tmp3 + tmp4, PASS1_BITS+3) + & RANGE_MASK]; + outptr[3] = range_limit[IDESCALE(tmp3 - tmp4, PASS1_BITS+3) + & RANGE_MASK]; + + wsptr += DCTSIZE; /* advance pointer to next row */ + } +} + +#endif /* DCT_IFAST_SUPPORTED */ diff --git a/jpeg/jidctint.c b/jpeg/jidctint.c new file mode 100644 index 0000000..dcdf7ce --- /dev/null +++ b/jpeg/jidctint.c @@ -0,0 +1,5137 @@ +/* + * jidctint.c + * + * Copyright (C) 1991-1998, Thomas G. Lane. + * Modification developed 2002-2009 by Guido Vollbeding. + * This file is part of the Independent JPEG Group's software. + * For conditions of distribution and use, see the accompanying README file. + * + * This file contains a slow-but-accurate integer implementation of the + * inverse DCT (Discrete Cosine Transform). In the IJG code, this routine + * must also perform dequantization of the input coefficients. + * + * A 2-D IDCT can be done by 1-D IDCT on each column followed by 1-D IDCT + * on each row (or vice versa, but it's more convenient to emit a row at + * a time). Direct algorithms are also available, but they are much more + * complex and seem not to be any faster when reduced to code. + * + * This implementation is based on an algorithm described in + * C. Loeffler, A. Ligtenberg and G. Moschytz, "Practical Fast 1-D DCT + * Algorithms with 11 Multiplications", Proc. Int'l. Conf. on Acoustics, + * Speech, and Signal Processing 1989 (ICASSP '89), pp. 988-991. + * The primary algorithm described there uses 11 multiplies and 29 adds. + * We use their alternate method with 12 multiplies and 32 adds. + * The advantage of this method is that no data path contains more than one + * multiplication; this allows a very simple and accurate implementation in + * scaled fixed-point arithmetic, with a minimal number of shifts. + * + * We also provide IDCT routines with various output sample block sizes for + * direct resolution reduction or enlargement and for direct resolving the + * common 2x1 and 1x2 subsampling cases without additional resampling: NxN + * (N=1...16), 2NxN, and Nx2N (N=1...8) pixels for one 8x8 input DCT block. + * + * For N<8 we simply take the corresponding low-frequency coefficients of + * the 8x8 input DCT block and apply an NxN point IDCT on the sub-block + * to yield the downscaled outputs. + * This can be seen as direct low-pass downsampling from the DCT domain + * point of view rather than the usual spatial domain point of view, + * yielding significant computational savings and results at least + * as good as common bilinear (averaging) spatial downsampling. + * + * For N>8 we apply a partial NxN IDCT on the 8 input coefficients as + * lower frequencies and higher frequencies assumed to be zero. + * It turns out that the computational effort is similar to the 8x8 IDCT + * regarding the output size. + * Furthermore, the scaling and descaling is the same for all IDCT sizes. + * + * CAUTION: We rely on the FIX() macro except for the N=1,2,4,8 cases + * since there would be too many additional constants to pre-calculate. + */ + +#define JPEG_INTERNALS +#include "jinclude.h" +#include "jpeglib.h" +#include "jdct.h" /* Private declarations for DCT subsystem */ + +#ifdef DCT_ISLOW_SUPPORTED + + +/* + * This module is specialized to the case DCTSIZE = 8. + */ + +#if DCTSIZE != 8 + Sorry, this code only copes with 8x8 DCT blocks. /* deliberate syntax err */ +#endif + + +/* + * The poop on this scaling stuff is as follows: + * + * Each 1-D IDCT step produces outputs which are a factor of sqrt(N) + * larger than the true IDCT outputs. The final outputs are therefore + * a factor of N larger than desired; since N=8 this can be cured by + * a simple right shift at the end of the algorithm. The advantage of + * this arrangement is that we save two multiplications per 1-D IDCT, + * because the y0 and y4 inputs need not be divided by sqrt(N). + * + * We have to do addition and subtraction of the integer inputs, which + * is no problem, and multiplication by fractional constants, which is + * a problem to do in integer arithmetic. We multiply all the constants + * by CONST_SCALE and convert them to integer constants (thus retaining + * CONST_BITS bits of precision in the constants). After doing a + * multiplication we have to divide the product by CONST_SCALE, with proper + * rounding, to produce the correct output. This division can be done + * cheaply as a right shift of CONST_BITS bits. We postpone shifting + * as long as possible so that partial sums can be added together with + * full fractional precision. + * + * The outputs of the first pass are scaled up by PASS1_BITS bits so that + * they are represented to better-than-integral precision. These outputs + * require BITS_IN_JSAMPLE + PASS1_BITS + 3 bits; this fits in a 16-bit word + * with the recommended scaling. (To scale up 12-bit sample data further, an + * intermediate INT32 array would be needed.) + * + * To avoid overflow of the 32-bit intermediate results in pass 2, we must + * have BITS_IN_JSAMPLE + CONST_BITS + PASS1_BITS <= 26. Error analysis + * shows that the values given below are the most effective. + */ + +#if BITS_IN_JSAMPLE == 8 +#define CONST_BITS 13 +#define PASS1_BITS 2 +#else +#define CONST_BITS 13 +#define PASS1_BITS 1 /* lose a little precision to avoid overflow */ +#endif + +/* Some C compilers fail to reduce "FIX(constant)" at compile time, thus + * causing a lot of useless floating-point operations at run time. + * To get around this we use the following pre-calculated constants. + * If you change CONST_BITS you may want to add appropriate values. + * (With a reasonable C compiler, you can just rely on the FIX() macro...) + */ + +#if CONST_BITS == 13 +#define FIX_0_298631336 ((INT32) 2446) /* FIX(0.298631336) */ +#define FIX_0_390180644 ((INT32) 3196) /* FIX(0.390180644) */ +#define FIX_0_541196100 ((INT32) 4433) /* FIX(0.541196100) */ +#define FIX_0_765366865 ((INT32) 6270) /* FIX(0.765366865) */ +#define FIX_0_899976223 ((INT32) 7373) /* FIX(0.899976223) */ +#define FIX_1_175875602 ((INT32) 9633) /* FIX(1.175875602) */ +#define FIX_1_501321110 ((INT32) 12299) /* FIX(1.501321110) */ +#define FIX_1_847759065 ((INT32) 15137) /* FIX(1.847759065) */ +#define FIX_1_961570560 ((INT32) 16069) /* FIX(1.961570560) */ +#define FIX_2_053119869 ((INT32) 16819) /* FIX(2.053119869) */ +#define FIX_2_562915447 ((INT32) 20995) /* FIX(2.562915447) */ +#define FIX_3_072711026 ((INT32) 25172) /* FIX(3.072711026) */ +#else +#define FIX_0_298631336 FIX(0.298631336) +#define FIX_0_390180644 FIX(0.390180644) +#define FIX_0_541196100 FIX(0.541196100) +#define FIX_0_765366865 FIX(0.765366865) +#define FIX_0_899976223 FIX(0.899976223) +#define FIX_1_175875602 FIX(1.175875602) +#define FIX_1_501321110 FIX(1.501321110) +#define FIX_1_847759065 FIX(1.847759065) +#define FIX_1_961570560 FIX(1.961570560) +#define FIX_2_053119869 FIX(2.053119869) +#define FIX_2_562915447 FIX(2.562915447) +#define FIX_3_072711026 FIX(3.072711026) +#endif + + +/* Multiply an INT32 variable by an INT32 constant to yield an INT32 result. + * For 8-bit samples with the recommended scaling, all the variable + * and constant values involved are no more than 16 bits wide, so a + * 16x16->32 bit multiply can be used instead of a full 32x32 multiply. + * For 12-bit samples, a full 32-bit multiplication will be needed. + */ + +#if BITS_IN_JSAMPLE == 8 +#define MULTIPLY(var,const) MULTIPLY16C16(var,const) +#else +#define MULTIPLY(var,const) ((var) * (const)) +#endif + + +/* Dequantize a coefficient by multiplying it by the multiplier-table + * entry; produce an int result. In this module, both inputs and result + * are 16 bits or less, so either int or short multiply will work. + */ + +#define DEQUANTIZE(coef,quantval) (((ISLOW_MULT_TYPE) (coef)) * (quantval)) + + +/* + * Perform dequantization and inverse DCT on one block of coefficients. + */ + +GLOBAL(void) +jpeg_idct_islow (j_decompress_ptr cinfo, jpeg_component_info * compptr, + JCOEFPTR coef_block, + JSAMPARRAY output_buf, JDIMENSION output_col) +{ + INT32 tmp0, tmp1, tmp2, tmp3; + INT32 tmp10, tmp11, tmp12, tmp13; + INT32 z1, z2, z3; + JCOEFPTR inptr; + ISLOW_MULT_TYPE * quantptr; + int * wsptr; + JSAMPROW outptr; + JSAMPLE *range_limit = IDCT_range_limit(cinfo); + int ctr; + int workspace[DCTSIZE2]; /* buffers data between passes */ + SHIFT_TEMPS + + /* Pass 1: process columns from input, store into work array. */ + /* Note results are scaled up by sqrt(8) compared to a true IDCT; */ + /* furthermore, we scale the results by 2**PASS1_BITS. */ + + inptr = coef_block; + quantptr = (ISLOW_MULT_TYPE *) compptr->dct_table; + wsptr = workspace; + for (ctr = DCTSIZE; ctr > 0; ctr--) { + /* Due to quantization, we will usually find that many of the input + * coefficients are zero, especially the AC terms. We can exploit this + * by short-circuiting the IDCT calculation for any column in which all + * the AC terms are zero. In that case each output is equal to the + * DC coefficient (with scale factor as needed). + * With typical images and quantization tables, half or more of the + * column DCT calculations can be simplified this way. + */ + + if (inptr[DCTSIZE*1] == 0 && inptr[DCTSIZE*2] == 0 && + inptr[DCTSIZE*3] == 0 && inptr[DCTSIZE*4] == 0 && + inptr[DCTSIZE*5] == 0 && inptr[DCTSIZE*6] == 0 && + inptr[DCTSIZE*7] == 0) { + /* AC terms all zero */ + int dcval = DEQUANTIZE(inptr[DCTSIZE*0], quantptr[DCTSIZE*0]) << PASS1_BITS; + + wsptr[DCTSIZE*0] = dcval; + wsptr[DCTSIZE*1] = dcval; + wsptr[DCTSIZE*2] = dcval; + wsptr[DCTSIZE*3] = dcval; + wsptr[DCTSIZE*4] = dcval; + wsptr[DCTSIZE*5] = dcval; + wsptr[DCTSIZE*6] = dcval; + wsptr[DCTSIZE*7] = dcval; + + inptr++; /* advance pointers to next column */ + quantptr++; + wsptr++; + continue; + } + + /* Even part: reverse the even part of the forward DCT. */ + /* The rotator is sqrt(2)*c(-6). */ + + z2 = DEQUANTIZE(inptr[DCTSIZE*2], quantptr[DCTSIZE*2]); + z3 = DEQUANTIZE(inptr[DCTSIZE*6], quantptr[DCTSIZE*6]); + + z1 = MULTIPLY(z2 + z3, FIX_0_541196100); + tmp2 = z1 + MULTIPLY(z2, FIX_0_765366865); + tmp3 = z1 - MULTIPLY(z3, FIX_1_847759065); + + z2 = DEQUANTIZE(inptr[DCTSIZE*0], quantptr[DCTSIZE*0]); + z3 = DEQUANTIZE(inptr[DCTSIZE*4], quantptr[DCTSIZE*4]); + z2 <<= CONST_BITS; + z3 <<= CONST_BITS; + /* Add fudge factor here for final descale. */ + z2 += ONE << (CONST_BITS-PASS1_BITS-1); + + tmp0 = z2 + z3; + tmp1 = z2 - z3; + + tmp10 = tmp0 + tmp2; + tmp13 = tmp0 - tmp2; + tmp11 = tmp1 + tmp3; + tmp12 = tmp1 - tmp3; + + /* Odd part per figure 8; the matrix is unitary and hence its + * transpose is its inverse. i0..i3 are y7,y5,y3,y1 respectively. + */ + + tmp0 = DEQUANTIZE(inptr[DCTSIZE*7], quantptr[DCTSIZE*7]); + tmp1 = DEQUANTIZE(inptr[DCTSIZE*5], quantptr[DCTSIZE*5]); + tmp2 = DEQUANTIZE(inptr[DCTSIZE*3], quantptr[DCTSIZE*3]); + tmp3 = DEQUANTIZE(inptr[DCTSIZE*1], quantptr[DCTSIZE*1]); + + z2 = tmp0 + tmp2; + z3 = tmp1 + tmp3; + + z1 = MULTIPLY(z2 + z3, FIX_1_175875602); /* sqrt(2) * c3 */ + z2 = MULTIPLY(z2, - FIX_1_961570560); /* sqrt(2) * (-c3-c5) */ + z3 = MULTIPLY(z3, - FIX_0_390180644); /* sqrt(2) * (c5-c3) */ + z2 += z1; + z3 += z1; + + z1 = MULTIPLY(tmp0 + tmp3, - FIX_0_899976223); /* sqrt(2) * (c7-c3) */ + tmp0 = MULTIPLY(tmp0, FIX_0_298631336); /* sqrt(2) * (-c1+c3+c5-c7) */ + tmp3 = MULTIPLY(tmp3, FIX_1_501321110); /* sqrt(2) * ( c1+c3-c5-c7) */ + tmp0 += z1 + z2; + tmp3 += z1 + z3; + + z1 = MULTIPLY(tmp1 + tmp2, - FIX_2_562915447); /* sqrt(2) * (-c1-c3) */ + tmp1 = MULTIPLY(tmp1, FIX_2_053119869); /* sqrt(2) * ( c1+c3-c5+c7) */ + tmp2 = MULTIPLY(tmp2, FIX_3_072711026); /* sqrt(2) * ( c1+c3+c5-c7) */ + tmp1 += z1 + z3; + tmp2 += z1 + z2; + + /* Final output stage: inputs are tmp10..tmp13, tmp0..tmp3 */ + + wsptr[DCTSIZE*0] = (int) RIGHT_SHIFT(tmp10 + tmp3, CONST_BITS-PASS1_BITS); + wsptr[DCTSIZE*7] = (int) RIGHT_SHIFT(tmp10 - tmp3, CONST_BITS-PASS1_BITS); + wsptr[DCTSIZE*1] = (int) RIGHT_SHIFT(tmp11 + tmp2, CONST_BITS-PASS1_BITS); + wsptr[DCTSIZE*6] = (int) RIGHT_SHIFT(tmp11 - tmp2, CONST_BITS-PASS1_BITS); + wsptr[DCTSIZE*2] = (int) RIGHT_SHIFT(tmp12 + tmp1, CONST_BITS-PASS1_BITS); + wsptr[DCTSIZE*5] = (int) RIGHT_SHIFT(tmp12 - tmp1, CONST_BITS-PASS1_BITS); + wsptr[DCTSIZE*3] = (int) RIGHT_SHIFT(tmp13 + tmp0, CONST_BITS-PASS1_BITS); + wsptr[DCTSIZE*4] = (int) RIGHT_SHIFT(tmp13 - tmp0, CONST_BITS-PASS1_BITS); + + inptr++; /* advance pointers to next column */ + quantptr++; + wsptr++; + } + + /* Pass 2: process rows from work array, store into output array. */ + /* Note that we must descale the results by a factor of 8 == 2**3, */ + /* and also undo the PASS1_BITS scaling. */ + + wsptr = workspace; + for (ctr = 0; ctr < DCTSIZE; ctr++) { + outptr = output_buf[ctr] + output_col; + /* Rows of zeroes can be exploited in the same way as we did with columns. + * However, the column calculation has created many nonzero AC terms, so + * the simplification applies less often (typically 5% to 10% of the time). + * On machines with very fast multiplication, it's possible that the + * test takes more time than it's worth. In that case this section + * may be commented out. + */ + +#ifndef NO_ZERO_ROW_TEST + if (wsptr[1] == 0 && wsptr[2] == 0 && wsptr[3] == 0 && wsptr[4] == 0 && + wsptr[5] == 0 && wsptr[6] == 0 && wsptr[7] == 0) { + /* AC terms all zero */ + JSAMPLE dcval = range_limit[(int) DESCALE((INT32) wsptr[0], PASS1_BITS+3) + & RANGE_MASK]; + + outptr[0] = dcval; + outptr[1] = dcval; + outptr[2] = dcval; + outptr[3] = dcval; + outptr[4] = dcval; + outptr[5] = dcval; + outptr[6] = dcval; + outptr[7] = dcval; + + wsptr += DCTSIZE; /* advance pointer to next row */ + continue; + } +#endif + + /* Even part: reverse the even part of the forward DCT. */ + /* The rotator is sqrt(2)*c(-6). */ + + z2 = (INT32) wsptr[2]; + z3 = (INT32) wsptr[6]; + + z1 = MULTIPLY(z2 + z3, FIX_0_541196100); + tmp2 = z1 + MULTIPLY(z2, FIX_0_765366865); + tmp3 = z1 - MULTIPLY(z3, FIX_1_847759065); + + /* Add fudge factor here for final descale. */ + z2 = (INT32) wsptr[0] + (ONE << (PASS1_BITS+2)); + z3 = (INT32) wsptr[4]; + + tmp0 = (z2 + z3) << CONST_BITS; + tmp1 = (z2 - z3) << CONST_BITS; + + tmp10 = tmp0 + tmp2; + tmp13 = tmp0 - tmp2; + tmp11 = tmp1 + tmp3; + tmp12 = tmp1 - tmp3; + + /* Odd part per figure 8; the matrix is unitary and hence its + * transpose is its inverse. i0..i3 are y7,y5,y3,y1 respectively. + */ + + tmp0 = (INT32) wsptr[7]; + tmp1 = (INT32) wsptr[5]; + tmp2 = (INT32) wsptr[3]; + tmp3 = (INT32) wsptr[1]; + + z2 = tmp0 + tmp2; + z3 = tmp1 + tmp3; + + z1 = MULTIPLY(z2 + z3, FIX_1_175875602); /* sqrt(2) * c3 */ + z2 = MULTIPLY(z2, - FIX_1_961570560); /* sqrt(2) * (-c3-c5) */ + z3 = MULTIPLY(z3, - FIX_0_390180644); /* sqrt(2) * (c5-c3) */ + z2 += z1; + z3 += z1; + + z1 = MULTIPLY(tmp0 + tmp3, - FIX_0_899976223); /* sqrt(2) * (c7-c3) */ + tmp0 = MULTIPLY(tmp0, FIX_0_298631336); /* sqrt(2) * (-c1+c3+c5-c7) */ + tmp3 = MULTIPLY(tmp3, FIX_1_501321110); /* sqrt(2) * ( c1+c3-c5-c7) */ + tmp0 += z1 + z2; + tmp3 += z1 + z3; + + z1 = MULTIPLY(tmp1 + tmp2, - FIX_2_562915447); /* sqrt(2) * (-c1-c3) */ + tmp1 = MULTIPLY(tmp1, FIX_2_053119869); /* sqrt(2) * ( c1+c3-c5+c7) */ + tmp2 = MULTIPLY(tmp2, FIX_3_072711026); /* sqrt(2) * ( c1+c3+c5-c7) */ + tmp1 += z1 + z3; + tmp2 += z1 + z2; + + /* Final output stage: inputs are tmp10..tmp13, tmp0..tmp3 */ + + outptr[0] = range_limit[(int) RIGHT_SHIFT(tmp10 + tmp3, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[7] = range_limit[(int) RIGHT_SHIFT(tmp10 - tmp3, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[1] = range_limit[(int) RIGHT_SHIFT(tmp11 + tmp2, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[6] = range_limit[(int) RIGHT_SHIFT(tmp11 - tmp2, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[2] = range_limit[(int) RIGHT_SHIFT(tmp12 + tmp1, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[5] = range_limit[(int) RIGHT_SHIFT(tmp12 - tmp1, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[3] = range_limit[(int) RIGHT_SHIFT(tmp13 + tmp0, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[4] = range_limit[(int) RIGHT_SHIFT(tmp13 - tmp0, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + + wsptr += DCTSIZE; /* advance pointer to next row */ + } +} + +#ifdef IDCT_SCALING_SUPPORTED + + +/* + * Perform dequantization and inverse DCT on one block of coefficients, + * producing a 7x7 output block. + * + * Optimized algorithm with 12 multiplications in the 1-D kernel. + * cK represents sqrt(2) * cos(K*pi/14). + */ + +GLOBAL(void) +jpeg_idct_7x7 (j_decompress_ptr cinfo, jpeg_component_info * compptr, + JCOEFPTR coef_block, + JSAMPARRAY output_buf, JDIMENSION output_col) +{ + INT32 tmp0, tmp1, tmp2, tmp10, tmp11, tmp12, tmp13; + INT32 z1, z2, z3; + JCOEFPTR inptr; + ISLOW_MULT_TYPE * quantptr; + int * wsptr; + JSAMPROW outptr; + JSAMPLE *range_limit = IDCT_range_limit(cinfo); + int ctr; + int workspace[7*7]; /* buffers data between passes */ + SHIFT_TEMPS + + /* Pass 1: process columns from input, store into work array. */ + + inptr = coef_block; + quantptr = (ISLOW_MULT_TYPE *) compptr->dct_table; + wsptr = workspace; + for (ctr = 0; ctr < 7; ctr++, inptr++, quantptr++, wsptr++) { + /* Even part */ + + tmp13 = DEQUANTIZE(inptr[DCTSIZE*0], quantptr[DCTSIZE*0]); + tmp13 <<= CONST_BITS; + /* Add fudge factor here for final descale. */ + tmp13 += ONE << (CONST_BITS-PASS1_BITS-1); + + z1 = DEQUANTIZE(inptr[DCTSIZE*2], quantptr[DCTSIZE*2]); + z2 = DEQUANTIZE(inptr[DCTSIZE*4], quantptr[DCTSIZE*4]); + z3 = DEQUANTIZE(inptr[DCTSIZE*6], quantptr[DCTSIZE*6]); + + tmp10 = MULTIPLY(z2 - z3, FIX(0.881747734)); /* c4 */ + tmp12 = MULTIPLY(z1 - z2, FIX(0.314692123)); /* c6 */ + tmp11 = tmp10 + tmp12 + tmp13 - MULTIPLY(z2, FIX(1.841218003)); /* c2+c4-c6 */ + tmp0 = z1 + z3; + z2 -= tmp0; + tmp0 = MULTIPLY(tmp0, FIX(1.274162392)) + tmp13; /* c2 */ + tmp10 += tmp0 - MULTIPLY(z3, FIX(0.077722536)); /* c2-c4-c6 */ + tmp12 += tmp0 - MULTIPLY(z1, FIX(2.470602249)); /* c2+c4+c6 */ + tmp13 += MULTIPLY(z2, FIX(1.414213562)); /* c0 */ + + /* Odd part */ + + z1 = DEQUANTIZE(inptr[DCTSIZE*1], quantptr[DCTSIZE*1]); + z2 = DEQUANTIZE(inptr[DCTSIZE*3], quantptr[DCTSIZE*3]); + z3 = DEQUANTIZE(inptr[DCTSIZE*5], quantptr[DCTSIZE*5]); + + tmp1 = MULTIPLY(z1 + z2, FIX(0.935414347)); /* (c3+c1-c5)/2 */ + tmp2 = MULTIPLY(z1 - z2, FIX(0.170262339)); /* (c3+c5-c1)/2 */ + tmp0 = tmp1 - tmp2; + tmp1 += tmp2; + tmp2 = MULTIPLY(z2 + z3, - FIX(1.378756276)); /* -c1 */ + tmp1 += tmp2; + z2 = MULTIPLY(z1 + z3, FIX(0.613604268)); /* c5 */ + tmp0 += z2; + tmp2 += z2 + MULTIPLY(z3, FIX(1.870828693)); /* c3+c1-c5 */ + + /* Final output stage */ + + wsptr[7*0] = (int) RIGHT_SHIFT(tmp10 + tmp0, CONST_BITS-PASS1_BITS); + wsptr[7*6] = (int) RIGHT_SHIFT(tmp10 - tmp0, CONST_BITS-PASS1_BITS); + wsptr[7*1] = (int) RIGHT_SHIFT(tmp11 + tmp1, CONST_BITS-PASS1_BITS); + wsptr[7*5] = (int) RIGHT_SHIFT(tmp11 - tmp1, CONST_BITS-PASS1_BITS); + wsptr[7*2] = (int) RIGHT_SHIFT(tmp12 + tmp2, CONST_BITS-PASS1_BITS); + wsptr[7*4] = (int) RIGHT_SHIFT(tmp12 - tmp2, CONST_BITS-PASS1_BITS); + wsptr[7*3] = (int) RIGHT_SHIFT(tmp13, CONST_BITS-PASS1_BITS); + } + + /* Pass 2: process 7 rows from work array, store into output array. */ + + wsptr = workspace; + for (ctr = 0; ctr < 7; ctr++) { + outptr = output_buf[ctr] + output_col; + + /* Even part */ + + /* Add fudge factor here for final descale. */ + tmp13 = (INT32) wsptr[0] + (ONE << (PASS1_BITS+2)); + tmp13 <<= CONST_BITS; + + z1 = (INT32) wsptr[2]; + z2 = (INT32) wsptr[4]; + z3 = (INT32) wsptr[6]; + + tmp10 = MULTIPLY(z2 - z3, FIX(0.881747734)); /* c4 */ + tmp12 = MULTIPLY(z1 - z2, FIX(0.314692123)); /* c6 */ + tmp11 = tmp10 + tmp12 + tmp13 - MULTIPLY(z2, FIX(1.841218003)); /* c2+c4-c6 */ + tmp0 = z1 + z3; + z2 -= tmp0; + tmp0 = MULTIPLY(tmp0, FIX(1.274162392)) + tmp13; /* c2 */ + tmp10 += tmp0 - MULTIPLY(z3, FIX(0.077722536)); /* c2-c4-c6 */ + tmp12 += tmp0 - MULTIPLY(z1, FIX(2.470602249)); /* c2+c4+c6 */ + tmp13 += MULTIPLY(z2, FIX(1.414213562)); /* c0 */ + + /* Odd part */ + + z1 = (INT32) wsptr[1]; + z2 = (INT32) wsptr[3]; + z3 = (INT32) wsptr[5]; + + tmp1 = MULTIPLY(z1 + z2, FIX(0.935414347)); /* (c3+c1-c5)/2 */ + tmp2 = MULTIPLY(z1 - z2, FIX(0.170262339)); /* (c3+c5-c1)/2 */ + tmp0 = tmp1 - tmp2; + tmp1 += tmp2; + tmp2 = MULTIPLY(z2 + z3, - FIX(1.378756276)); /* -c1 */ + tmp1 += tmp2; + z2 = MULTIPLY(z1 + z3, FIX(0.613604268)); /* c5 */ + tmp0 += z2; + tmp2 += z2 + MULTIPLY(z3, FIX(1.870828693)); /* c3+c1-c5 */ + + /* Final output stage */ + + outptr[0] = range_limit[(int) RIGHT_SHIFT(tmp10 + tmp0, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[6] = range_limit[(int) RIGHT_SHIFT(tmp10 - tmp0, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[1] = range_limit[(int) RIGHT_SHIFT(tmp11 + tmp1, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[5] = range_limit[(int) RIGHT_SHIFT(tmp11 - tmp1, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[2] = range_limit[(int) RIGHT_SHIFT(tmp12 + tmp2, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[4] = range_limit[(int) RIGHT_SHIFT(tmp12 - tmp2, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[3] = range_limit[(int) RIGHT_SHIFT(tmp13, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + + wsptr += 7; /* advance pointer to next row */ + } +} + + +/* + * Perform dequantization and inverse DCT on one block of coefficients, + * producing a reduced-size 6x6 output block. + * + * Optimized algorithm with 3 multiplications in the 1-D kernel. + * cK represents sqrt(2) * cos(K*pi/12). + */ + +GLOBAL(void) +jpeg_idct_6x6 (j_decompress_ptr cinfo, jpeg_component_info * compptr, + JCOEFPTR coef_block, + JSAMPARRAY output_buf, JDIMENSION output_col) +{ + INT32 tmp0, tmp1, tmp2, tmp10, tmp11, tmp12; + INT32 z1, z2, z3; + JCOEFPTR inptr; + ISLOW_MULT_TYPE * quantptr; + int * wsptr; + JSAMPROW outptr; + JSAMPLE *range_limit = IDCT_range_limit(cinfo); + int ctr; + int workspace[6*6]; /* buffers data between passes */ + SHIFT_TEMPS + + /* Pass 1: process columns from input, store into work array. */ + + inptr = coef_block; + quantptr = (ISLOW_MULT_TYPE *) compptr->dct_table; + wsptr = workspace; + for (ctr = 0; ctr < 6; ctr++, inptr++, quantptr++, wsptr++) { + /* Even part */ + + tmp0 = DEQUANTIZE(inptr[DCTSIZE*0], quantptr[DCTSIZE*0]); + tmp0 <<= CONST_BITS; + /* Add fudge factor here for final descale. */ + tmp0 += ONE << (CONST_BITS-PASS1_BITS-1); + tmp2 = DEQUANTIZE(inptr[DCTSIZE*4], quantptr[DCTSIZE*4]); + tmp10 = MULTIPLY(tmp2, FIX(0.707106781)); /* c4 */ + tmp1 = tmp0 + tmp10; + tmp11 = RIGHT_SHIFT(tmp0 - tmp10 - tmp10, CONST_BITS-PASS1_BITS); + tmp10 = DEQUANTIZE(inptr[DCTSIZE*2], quantptr[DCTSIZE*2]); + tmp0 = MULTIPLY(tmp10, FIX(1.224744871)); /* c2 */ + tmp10 = tmp1 + tmp0; + tmp12 = tmp1 - tmp0; + + /* Odd part */ + + z1 = DEQUANTIZE(inptr[DCTSIZE*1], quantptr[DCTSIZE*1]); + z2 = DEQUANTIZE(inptr[DCTSIZE*3], quantptr[DCTSIZE*3]); + z3 = DEQUANTIZE(inptr[DCTSIZE*5], quantptr[DCTSIZE*5]); + tmp1 = MULTIPLY(z1 + z3, FIX(0.366025404)); /* c5 */ + tmp0 = tmp1 + ((z1 + z2) << CONST_BITS); + tmp2 = tmp1 + ((z3 - z2) << CONST_BITS); + tmp1 = (z1 - z2 - z3) << PASS1_BITS; + + /* Final output stage */ + + wsptr[6*0] = (int) RIGHT_SHIFT(tmp10 + tmp0, CONST_BITS-PASS1_BITS); + wsptr[6*5] = (int) RIGHT_SHIFT(tmp10 - tmp0, CONST_BITS-PASS1_BITS); + wsptr[6*1] = (int) (tmp11 + tmp1); + wsptr[6*4] = (int) (tmp11 - tmp1); + wsptr[6*2] = (int) RIGHT_SHIFT(tmp12 + tmp2, CONST_BITS-PASS1_BITS); + wsptr[6*3] = (int) RIGHT_SHIFT(tmp12 - tmp2, CONST_BITS-PASS1_BITS); + } + + /* Pass 2: process 6 rows from work array, store into output array. */ + + wsptr = workspace; + for (ctr = 0; ctr < 6; ctr++) { + outptr = output_buf[ctr] + output_col; + + /* Even part */ + + /* Add fudge factor here for final descale. */ + tmp0 = (INT32) wsptr[0] + (ONE << (PASS1_BITS+2)); + tmp0 <<= CONST_BITS; + tmp2 = (INT32) wsptr[4]; + tmp10 = MULTIPLY(tmp2, FIX(0.707106781)); /* c4 */ + tmp1 = tmp0 + tmp10; + tmp11 = tmp0 - tmp10 - tmp10; + tmp10 = (INT32) wsptr[2]; + tmp0 = MULTIPLY(tmp10, FIX(1.224744871)); /* c2 */ + tmp10 = tmp1 + tmp0; + tmp12 = tmp1 - tmp0; + + /* Odd part */ + + z1 = (INT32) wsptr[1]; + z2 = (INT32) wsptr[3]; + z3 = (INT32) wsptr[5]; + tmp1 = MULTIPLY(z1 + z3, FIX(0.366025404)); /* c5 */ + tmp0 = tmp1 + ((z1 + z2) << CONST_BITS); + tmp2 = tmp1 + ((z3 - z2) << CONST_BITS); + tmp1 = (z1 - z2 - z3) << CONST_BITS; + + /* Final output stage */ + + outptr[0] = range_limit[(int) RIGHT_SHIFT(tmp10 + tmp0, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[5] = range_limit[(int) RIGHT_SHIFT(tmp10 - tmp0, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[1] = range_limit[(int) RIGHT_SHIFT(tmp11 + tmp1, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[4] = range_limit[(int) RIGHT_SHIFT(tmp11 - tmp1, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[2] = range_limit[(int) RIGHT_SHIFT(tmp12 + tmp2, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[3] = range_limit[(int) RIGHT_SHIFT(tmp12 - tmp2, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + + wsptr += 6; /* advance pointer to next row */ + } +} + + +/* + * Perform dequantization and inverse DCT on one block of coefficients, + * producing a reduced-size 5x5 output block. + * + * Optimized algorithm with 5 multiplications in the 1-D kernel. + * cK represents sqrt(2) * cos(K*pi/10). + */ + +GLOBAL(void) +jpeg_idct_5x5 (j_decompress_ptr cinfo, jpeg_component_info * compptr, + JCOEFPTR coef_block, + JSAMPARRAY output_buf, JDIMENSION output_col) +{ + INT32 tmp0, tmp1, tmp10, tmp11, tmp12; + INT32 z1, z2, z3; + JCOEFPTR inptr; + ISLOW_MULT_TYPE * quantptr; + int * wsptr; + JSAMPROW outptr; + JSAMPLE *range_limit = IDCT_range_limit(cinfo); + int ctr; + int workspace[5*5]; /* buffers data between passes */ + SHIFT_TEMPS + + /* Pass 1: process columns from input, store into work array. */ + + inptr = coef_block; + quantptr = (ISLOW_MULT_TYPE *) compptr->dct_table; + wsptr = workspace; + for (ctr = 0; ctr < 5; ctr++, inptr++, quantptr++, wsptr++) { + /* Even part */ + + tmp12 = DEQUANTIZE(inptr[DCTSIZE*0], quantptr[DCTSIZE*0]); + tmp12 <<= CONST_BITS; + /* Add fudge factor here for final descale. */ + tmp12 += ONE << (CONST_BITS-PASS1_BITS-1); + tmp0 = DEQUANTIZE(inptr[DCTSIZE*2], quantptr[DCTSIZE*2]); + tmp1 = DEQUANTIZE(inptr[DCTSIZE*4], quantptr[DCTSIZE*4]); + z1 = MULTIPLY(tmp0 + tmp1, FIX(0.790569415)); /* (c2+c4)/2 */ + z2 = MULTIPLY(tmp0 - tmp1, FIX(0.353553391)); /* (c2-c4)/2 */ + z3 = tmp12 + z2; + tmp10 = z3 + z1; + tmp11 = z3 - z1; + tmp12 -= z2 << 2; + + /* Odd part */ + + z2 = DEQUANTIZE(inptr[DCTSIZE*1], quantptr[DCTSIZE*1]); + z3 = DEQUANTIZE(inptr[DCTSIZE*3], quantptr[DCTSIZE*3]); + + z1 = MULTIPLY(z2 + z3, FIX(0.831253876)); /* c3 */ + tmp0 = z1 + MULTIPLY(z2, FIX(0.513743148)); /* c1-c3 */ + tmp1 = z1 - MULTIPLY(z3, FIX(2.176250899)); /* c1+c3 */ + + /* Final output stage */ + + wsptr[5*0] = (int) RIGHT_SHIFT(tmp10 + tmp0, CONST_BITS-PASS1_BITS); + wsptr[5*4] = (int) RIGHT_SHIFT(tmp10 - tmp0, CONST_BITS-PASS1_BITS); + wsptr[5*1] = (int) RIGHT_SHIFT(tmp11 + tmp1, CONST_BITS-PASS1_BITS); + wsptr[5*3] = (int) RIGHT_SHIFT(tmp11 - tmp1, CONST_BITS-PASS1_BITS); + wsptr[5*2] = (int) RIGHT_SHIFT(tmp12, CONST_BITS-PASS1_BITS); + } + + /* Pass 2: process 5 rows from work array, store into output array. */ + + wsptr = workspace; + for (ctr = 0; ctr < 5; ctr++) { + outptr = output_buf[ctr] + output_col; + + /* Even part */ + + /* Add fudge factor here for final descale. */ + tmp12 = (INT32) wsptr[0] + (ONE << (PASS1_BITS+2)); + tmp12 <<= CONST_BITS; + tmp0 = (INT32) wsptr[2]; + tmp1 = (INT32) wsptr[4]; + z1 = MULTIPLY(tmp0 + tmp1, FIX(0.790569415)); /* (c2+c4)/2 */ + z2 = MULTIPLY(tmp0 - tmp1, FIX(0.353553391)); /* (c2-c4)/2 */ + z3 = tmp12 + z2; + tmp10 = z3 + z1; + tmp11 = z3 - z1; + tmp12 -= z2 << 2; + + /* Odd part */ + + z2 = (INT32) wsptr[1]; + z3 = (INT32) wsptr[3]; + + z1 = MULTIPLY(z2 + z3, FIX(0.831253876)); /* c3 */ + tmp0 = z1 + MULTIPLY(z2, FIX(0.513743148)); /* c1-c3 */ + tmp1 = z1 - MULTIPLY(z3, FIX(2.176250899)); /* c1+c3 */ + + /* Final output stage */ + + outptr[0] = range_limit[(int) RIGHT_SHIFT(tmp10 + tmp0, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[4] = range_limit[(int) RIGHT_SHIFT(tmp10 - tmp0, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[1] = range_limit[(int) RIGHT_SHIFT(tmp11 + tmp1, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[3] = range_limit[(int) RIGHT_SHIFT(tmp11 - tmp1, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[2] = range_limit[(int) RIGHT_SHIFT(tmp12, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + + wsptr += 5; /* advance pointer to next row */ + } +} + + +/* + * Perform dequantization and inverse DCT on one block of coefficients, + * producing a reduced-size 4x4 output block. + * + * Optimized algorithm with 3 multiplications in the 1-D kernel. + * cK represents sqrt(2) * cos(K*pi/16) [refers to 8-point IDCT]. + */ + +GLOBAL(void) +jpeg_idct_4x4 (j_decompress_ptr cinfo, jpeg_component_info * compptr, + JCOEFPTR coef_block, + JSAMPARRAY output_buf, JDIMENSION output_col) +{ + INT32 tmp0, tmp2, tmp10, tmp12; + INT32 z1, z2, z3; + JCOEFPTR inptr; + ISLOW_MULT_TYPE * quantptr; + int * wsptr; + JSAMPROW outptr; + JSAMPLE *range_limit = IDCT_range_limit(cinfo); + int ctr; + int workspace[4*4]; /* buffers data between passes */ + SHIFT_TEMPS + + /* Pass 1: process columns from input, store into work array. */ + + inptr = coef_block; + quantptr = (ISLOW_MULT_TYPE *) compptr->dct_table; + wsptr = workspace; + for (ctr = 0; ctr < 4; ctr++, inptr++, quantptr++, wsptr++) { + /* Even part */ + + tmp0 = DEQUANTIZE(inptr[DCTSIZE*0], quantptr[DCTSIZE*0]); + tmp2 = DEQUANTIZE(inptr[DCTSIZE*2], quantptr[DCTSIZE*2]); + + tmp10 = (tmp0 + tmp2) << PASS1_BITS; + tmp12 = (tmp0 - tmp2) << PASS1_BITS; + + /* Odd part */ + /* Same rotation as in the even part of the 8x8 LL&M IDCT */ + + z2 = DEQUANTIZE(inptr[DCTSIZE*1], quantptr[DCTSIZE*1]); + z3 = DEQUANTIZE(inptr[DCTSIZE*3], quantptr[DCTSIZE*3]); + + z1 = MULTIPLY(z2 + z3, FIX_0_541196100); /* c6 */ + /* Add fudge factor here for final descale. */ + z1 += ONE << (CONST_BITS-PASS1_BITS-1); + tmp0 = RIGHT_SHIFT(z1 + MULTIPLY(z2, FIX_0_765366865), /* c2-c6 */ + CONST_BITS-PASS1_BITS); + tmp2 = RIGHT_SHIFT(z1 - MULTIPLY(z3, FIX_1_847759065), /* c2+c6 */ + CONST_BITS-PASS1_BITS); + + /* Final output stage */ + + wsptr[4*0] = (int) (tmp10 + tmp0); + wsptr[4*3] = (int) (tmp10 - tmp0); + wsptr[4*1] = (int) (tmp12 + tmp2); + wsptr[4*2] = (int) (tmp12 - tmp2); + } + + /* Pass 2: process 4 rows from work array, store into output array. */ + + wsptr = workspace; + for (ctr = 0; ctr < 4; ctr++) { + outptr = output_buf[ctr] + output_col; + + /* Even part */ + + /* Add fudge factor here for final descale. */ + tmp0 = (INT32) wsptr[0] + (ONE << (PASS1_BITS+2)); + tmp2 = (INT32) wsptr[2]; + + tmp10 = (tmp0 + tmp2) << CONST_BITS; + tmp12 = (tmp0 - tmp2) << CONST_BITS; + + /* Odd part */ + /* Same rotation as in the even part of the 8x8 LL&M IDCT */ + + z2 = (INT32) wsptr[1]; + z3 = (INT32) wsptr[3]; + + z1 = MULTIPLY(z2 + z3, FIX_0_541196100); /* c6 */ + tmp0 = z1 + MULTIPLY(z2, FIX_0_765366865); /* c2-c6 */ + tmp2 = z1 - MULTIPLY(z3, FIX_1_847759065); /* c2+c6 */ + + /* Final output stage */ + + outptr[0] = range_limit[(int) RIGHT_SHIFT(tmp10 + tmp0, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[3] = range_limit[(int) RIGHT_SHIFT(tmp10 - tmp0, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[1] = range_limit[(int) RIGHT_SHIFT(tmp12 + tmp2, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[2] = range_limit[(int) RIGHT_SHIFT(tmp12 - tmp2, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + + wsptr += 4; /* advance pointer to next row */ + } +} + + +/* + * Perform dequantization and inverse DCT on one block of coefficients, + * producing a reduced-size 3x3 output block. + * + * Optimized algorithm with 2 multiplications in the 1-D kernel. + * cK represents sqrt(2) * cos(K*pi/6). + */ + +GLOBAL(void) +jpeg_idct_3x3 (j_decompress_ptr cinfo, jpeg_component_info * compptr, + JCOEFPTR coef_block, + JSAMPARRAY output_buf, JDIMENSION output_col) +{ + INT32 tmp0, tmp2, tmp10, tmp12; + JCOEFPTR inptr; + ISLOW_MULT_TYPE * quantptr; + int * wsptr; + JSAMPROW outptr; + JSAMPLE *range_limit = IDCT_range_limit(cinfo); + int ctr; + int workspace[3*3]; /* buffers data between passes */ + SHIFT_TEMPS + + /* Pass 1: process columns from input, store into work array. */ + + inptr = coef_block; + quantptr = (ISLOW_MULT_TYPE *) compptr->dct_table; + wsptr = workspace; + for (ctr = 0; ctr < 3; ctr++, inptr++, quantptr++, wsptr++) { + /* Even part */ + + tmp0 = DEQUANTIZE(inptr[DCTSIZE*0], quantptr[DCTSIZE*0]); + tmp0 <<= CONST_BITS; + /* Add fudge factor here for final descale. */ + tmp0 += ONE << (CONST_BITS-PASS1_BITS-1); + tmp2 = DEQUANTIZE(inptr[DCTSIZE*2], quantptr[DCTSIZE*2]); + tmp12 = MULTIPLY(tmp2, FIX(0.707106781)); /* c2 */ + tmp10 = tmp0 + tmp12; + tmp2 = tmp0 - tmp12 - tmp12; + + /* Odd part */ + + tmp12 = DEQUANTIZE(inptr[DCTSIZE*1], quantptr[DCTSIZE*1]); + tmp0 = MULTIPLY(tmp12, FIX(1.224744871)); /* c1 */ + + /* Final output stage */ + + wsptr[3*0] = (int) RIGHT_SHIFT(tmp10 + tmp0, CONST_BITS-PASS1_BITS); + wsptr[3*2] = (int) RIGHT_SHIFT(tmp10 - tmp0, CONST_BITS-PASS1_BITS); + wsptr[3*1] = (int) RIGHT_SHIFT(tmp2, CONST_BITS-PASS1_BITS); + } + + /* Pass 2: process 3 rows from work array, store into output array. */ + + wsptr = workspace; + for (ctr = 0; ctr < 3; ctr++) { + outptr = output_buf[ctr] + output_col; + + /* Even part */ + + /* Add fudge factor here for final descale. */ + tmp0 = (INT32) wsptr[0] + (ONE << (PASS1_BITS+2)); + tmp0 <<= CONST_BITS; + tmp2 = (INT32) wsptr[2]; + tmp12 = MULTIPLY(tmp2, FIX(0.707106781)); /* c2 */ + tmp10 = tmp0 + tmp12; + tmp2 = tmp0 - tmp12 - tmp12; + + /* Odd part */ + + tmp12 = (INT32) wsptr[1]; + tmp0 = MULTIPLY(tmp12, FIX(1.224744871)); /* c1 */ + + /* Final output stage */ + + outptr[0] = range_limit[(int) RIGHT_SHIFT(tmp10 + tmp0, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[2] = range_limit[(int) RIGHT_SHIFT(tmp10 - tmp0, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[1] = range_limit[(int) RIGHT_SHIFT(tmp2, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + + wsptr += 3; /* advance pointer to next row */ + } +} + + +/* + * Perform dequantization and inverse DCT on one block of coefficients, + * producing a reduced-size 2x2 output block. + * + * Multiplication-less algorithm. + */ + +GLOBAL(void) +jpeg_idct_2x2 (j_decompress_ptr cinfo, jpeg_component_info * compptr, + JCOEFPTR coef_block, + JSAMPARRAY output_buf, JDIMENSION output_col) +{ + INT32 tmp0, tmp1, tmp2, tmp3, tmp4, tmp5; + ISLOW_MULT_TYPE * quantptr; + JSAMPROW outptr; + JSAMPLE *range_limit = IDCT_range_limit(cinfo); + SHIFT_TEMPS + + /* Pass 1: process columns from input. */ + + quantptr = (ISLOW_MULT_TYPE *) compptr->dct_table; + + /* Column 0 */ + tmp4 = DEQUANTIZE(coef_block[DCTSIZE*0], quantptr[DCTSIZE*0]); + tmp5 = DEQUANTIZE(coef_block[DCTSIZE*1], quantptr[DCTSIZE*1]); + /* Add fudge factor here for final descale. */ + tmp4 += ONE << 2; + + tmp0 = tmp4 + tmp5; + tmp2 = tmp4 - tmp5; + + /* Column 1 */ + tmp4 = DEQUANTIZE(coef_block[DCTSIZE*0+1], quantptr[DCTSIZE*0+1]); + tmp5 = DEQUANTIZE(coef_block[DCTSIZE*1+1], quantptr[DCTSIZE*1+1]); + + tmp1 = tmp4 + tmp5; + tmp3 = tmp4 - tmp5; + + /* Pass 2: process 2 rows, store into output array. */ + + /* Row 0 */ + outptr = output_buf[0] + output_col; + + outptr[0] = range_limit[(int) RIGHT_SHIFT(tmp0 + tmp1, 3) & RANGE_MASK]; + outptr[1] = range_limit[(int) RIGHT_SHIFT(tmp0 - tmp1, 3) & RANGE_MASK]; + + /* Row 1 */ + outptr = output_buf[1] + output_col; + + outptr[0] = range_limit[(int) RIGHT_SHIFT(tmp2 + tmp3, 3) & RANGE_MASK]; + outptr[1] = range_limit[(int) RIGHT_SHIFT(tmp2 - tmp3, 3) & RANGE_MASK]; +} + + +/* + * Perform dequantization and inverse DCT on one block of coefficients, + * producing a reduced-size 1x1 output block. + * + * We hardly need an inverse DCT routine for this: just take the + * average pixel value, which is one-eighth of the DC coefficient. + */ + +GLOBAL(void) +jpeg_idct_1x1 (j_decompress_ptr cinfo, jpeg_component_info * compptr, + JCOEFPTR coef_block, + JSAMPARRAY output_buf, JDIMENSION output_col) +{ + int dcval; + ISLOW_MULT_TYPE * quantptr; + JSAMPLE *range_limit = IDCT_range_limit(cinfo); + SHIFT_TEMPS + + /* 1x1 is trivial: just take the DC coefficient divided by 8. */ + quantptr = (ISLOW_MULT_TYPE *) compptr->dct_table; + dcval = DEQUANTIZE(coef_block[0], quantptr[0]); + dcval = (int) DESCALE((INT32) dcval, 3); + + output_buf[0][output_col] = range_limit[dcval & RANGE_MASK]; +} + + +/* + * Perform dequantization and inverse DCT on one block of coefficients, + * producing a 9x9 output block. + * + * Optimized algorithm with 10 multiplications in the 1-D kernel. + * cK represents sqrt(2) * cos(K*pi/18). + */ + +GLOBAL(void) +jpeg_idct_9x9 (j_decompress_ptr cinfo, jpeg_component_info * compptr, + JCOEFPTR coef_block, + JSAMPARRAY output_buf, JDIMENSION output_col) +{ + INT32 tmp0, tmp1, tmp2, tmp3, tmp10, tmp11, tmp12, tmp13, tmp14; + INT32 z1, z2, z3, z4; + JCOEFPTR inptr; + ISLOW_MULT_TYPE * quantptr; + int * wsptr; + JSAMPROW outptr; + JSAMPLE *range_limit = IDCT_range_limit(cinfo); + int ctr; + int workspace[8*9]; /* buffers data between passes */ + SHIFT_TEMPS + + /* Pass 1: process columns from input, store into work array. */ + + inptr = coef_block; + quantptr = (ISLOW_MULT_TYPE *) compptr->dct_table; + wsptr = workspace; + for (ctr = 0; ctr < 8; ctr++, inptr++, quantptr++, wsptr++) { + /* Even part */ + + tmp0 = DEQUANTIZE(inptr[DCTSIZE*0], quantptr[DCTSIZE*0]); + tmp0 <<= CONST_BITS; + /* Add fudge factor here for final descale. */ + tmp0 += ONE << (CONST_BITS-PASS1_BITS-1); + + z1 = DEQUANTIZE(inptr[DCTSIZE*2], quantptr[DCTSIZE*2]); + z2 = DEQUANTIZE(inptr[DCTSIZE*4], quantptr[DCTSIZE*4]); + z3 = DEQUANTIZE(inptr[DCTSIZE*6], quantptr[DCTSIZE*6]); + + tmp3 = MULTIPLY(z3, FIX(0.707106781)); /* c6 */ + tmp1 = tmp0 + tmp3; + tmp2 = tmp0 - tmp3 - tmp3; + + tmp0 = MULTIPLY(z1 - z2, FIX(0.707106781)); /* c6 */ + tmp11 = tmp2 + tmp0; + tmp14 = tmp2 - tmp0 - tmp0; + + tmp0 = MULTIPLY(z1 + z2, FIX(1.328926049)); /* c2 */ + tmp2 = MULTIPLY(z1, FIX(1.083350441)); /* c4 */ + tmp3 = MULTIPLY(z2, FIX(0.245575608)); /* c8 */ + + tmp10 = tmp1 + tmp0 - tmp3; + tmp12 = tmp1 - tmp0 + tmp2; + tmp13 = tmp1 - tmp2 + tmp3; + + /* Odd part */ + + z1 = DEQUANTIZE(inptr[DCTSIZE*1], quantptr[DCTSIZE*1]); + z2 = DEQUANTIZE(inptr[DCTSIZE*3], quantptr[DCTSIZE*3]); + z3 = DEQUANTIZE(inptr[DCTSIZE*5], quantptr[DCTSIZE*5]); + z4 = DEQUANTIZE(inptr[DCTSIZE*7], quantptr[DCTSIZE*7]); + + z2 = MULTIPLY(z2, - FIX(1.224744871)); /* -c3 */ + + tmp2 = MULTIPLY(z1 + z3, FIX(0.909038955)); /* c5 */ + tmp3 = MULTIPLY(z1 + z4, FIX(0.483689525)); /* c7 */ + tmp0 = tmp2 + tmp3 - z2; + tmp1 = MULTIPLY(z3 - z4, FIX(1.392728481)); /* c1 */ + tmp2 += z2 - tmp1; + tmp3 += z2 + tmp1; + tmp1 = MULTIPLY(z1 - z3 - z4, FIX(1.224744871)); /* c3 */ + + /* Final output stage */ + + wsptr[8*0] = (int) RIGHT_SHIFT(tmp10 + tmp0, CONST_BITS-PASS1_BITS); + wsptr[8*8] = (int) RIGHT_SHIFT(tmp10 - tmp0, CONST_BITS-PASS1_BITS); + wsptr[8*1] = (int) RIGHT_SHIFT(tmp11 + tmp1, CONST_BITS-PASS1_BITS); + wsptr[8*7] = (int) RIGHT_SHIFT(tmp11 - tmp1, CONST_BITS-PASS1_BITS); + wsptr[8*2] = (int) RIGHT_SHIFT(tmp12 + tmp2, CONST_BITS-PASS1_BITS); + wsptr[8*6] = (int) RIGHT_SHIFT(tmp12 - tmp2, CONST_BITS-PASS1_BITS); + wsptr[8*3] = (int) RIGHT_SHIFT(tmp13 + tmp3, CONST_BITS-PASS1_BITS); + wsptr[8*5] = (int) RIGHT_SHIFT(tmp13 - tmp3, CONST_BITS-PASS1_BITS); + wsptr[8*4] = (int) RIGHT_SHIFT(tmp14, CONST_BITS-PASS1_BITS); + } + + /* Pass 2: process 9 rows from work array, store into output array. */ + + wsptr = workspace; + for (ctr = 0; ctr < 9; ctr++) { + outptr = output_buf[ctr] + output_col; + + /* Even part */ + + /* Add fudge factor here for final descale. */ + tmp0 = (INT32) wsptr[0] + (ONE << (PASS1_BITS+2)); + tmp0 <<= CONST_BITS; + + z1 = (INT32) wsptr[2]; + z2 = (INT32) wsptr[4]; + z3 = (INT32) wsptr[6]; + + tmp3 = MULTIPLY(z3, FIX(0.707106781)); /* c6 */ + tmp1 = tmp0 + tmp3; + tmp2 = tmp0 - tmp3 - tmp3; + + tmp0 = MULTIPLY(z1 - z2, FIX(0.707106781)); /* c6 */ + tmp11 = tmp2 + tmp0; + tmp14 = tmp2 - tmp0 - tmp0; + + tmp0 = MULTIPLY(z1 + z2, FIX(1.328926049)); /* c2 */ + tmp2 = MULTIPLY(z1, FIX(1.083350441)); /* c4 */ + tmp3 = MULTIPLY(z2, FIX(0.245575608)); /* c8 */ + + tmp10 = tmp1 + tmp0 - tmp3; + tmp12 = tmp1 - tmp0 + tmp2; + tmp13 = tmp1 - tmp2 + tmp3; + + /* Odd part */ + + z1 = (INT32) wsptr[1]; + z2 = (INT32) wsptr[3]; + z3 = (INT32) wsptr[5]; + z4 = (INT32) wsptr[7]; + + z2 = MULTIPLY(z2, - FIX(1.224744871)); /* -c3 */ + + tmp2 = MULTIPLY(z1 + z3, FIX(0.909038955)); /* c5 */ + tmp3 = MULTIPLY(z1 + z4, FIX(0.483689525)); /* c7 */ + tmp0 = tmp2 + tmp3 - z2; + tmp1 = MULTIPLY(z3 - z4, FIX(1.392728481)); /* c1 */ + tmp2 += z2 - tmp1; + tmp3 += z2 + tmp1; + tmp1 = MULTIPLY(z1 - z3 - z4, FIX(1.224744871)); /* c3 */ + + /* Final output stage */ + + outptr[0] = range_limit[(int) RIGHT_SHIFT(tmp10 + tmp0, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[8] = range_limit[(int) RIGHT_SHIFT(tmp10 - tmp0, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[1] = range_limit[(int) RIGHT_SHIFT(tmp11 + tmp1, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[7] = range_limit[(int) RIGHT_SHIFT(tmp11 - tmp1, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[2] = range_limit[(int) RIGHT_SHIFT(tmp12 + tmp2, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[6] = range_limit[(int) RIGHT_SHIFT(tmp12 - tmp2, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[3] = range_limit[(int) RIGHT_SHIFT(tmp13 + tmp3, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[5] = range_limit[(int) RIGHT_SHIFT(tmp13 - tmp3, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[4] = range_limit[(int) RIGHT_SHIFT(tmp14, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + + wsptr += 8; /* advance pointer to next row */ + } +} + + +/* + * Perform dequantization and inverse DCT on one block of coefficients, + * producing a 10x10 output block. + * + * Optimized algorithm with 12 multiplications in the 1-D kernel. + * cK represents sqrt(2) * cos(K*pi/20). + */ + +GLOBAL(void) +jpeg_idct_10x10 (j_decompress_ptr cinfo, jpeg_component_info * compptr, + JCOEFPTR coef_block, + JSAMPARRAY output_buf, JDIMENSION output_col) +{ + INT32 tmp10, tmp11, tmp12, tmp13, tmp14; + INT32 tmp20, tmp21, tmp22, tmp23, tmp24; + INT32 z1, z2, z3, z4, z5; + JCOEFPTR inptr; + ISLOW_MULT_TYPE * quantptr; + int * wsptr; + JSAMPROW outptr; + JSAMPLE *range_limit = IDCT_range_limit(cinfo); + int ctr; + int workspace[8*10]; /* buffers data between passes */ + SHIFT_TEMPS + + /* Pass 1: process columns from input, store into work array. */ + + inptr = coef_block; + quantptr = (ISLOW_MULT_TYPE *) compptr->dct_table; + wsptr = workspace; + for (ctr = 0; ctr < 8; ctr++, inptr++, quantptr++, wsptr++) { + /* Even part */ + + z3 = DEQUANTIZE(inptr[DCTSIZE*0], quantptr[DCTSIZE*0]); + z3 <<= CONST_BITS; + /* Add fudge factor here for final descale. */ + z3 += ONE << (CONST_BITS-PASS1_BITS-1); + z4 = DEQUANTIZE(inptr[DCTSIZE*4], quantptr[DCTSIZE*4]); + z1 = MULTIPLY(z4, FIX(1.144122806)); /* c4 */ + z2 = MULTIPLY(z4, FIX(0.437016024)); /* c8 */ + tmp10 = z3 + z1; + tmp11 = z3 - z2; + + tmp22 = RIGHT_SHIFT(z3 - ((z1 - z2) << 1), /* c0 = (c4-c8)*2 */ + CONST_BITS-PASS1_BITS); + + z2 = DEQUANTIZE(inptr[DCTSIZE*2], quantptr[DCTSIZE*2]); + z3 = DEQUANTIZE(inptr[DCTSIZE*6], quantptr[DCTSIZE*6]); + + z1 = MULTIPLY(z2 + z3, FIX(0.831253876)); /* c6 */ + tmp12 = z1 + MULTIPLY(z2, FIX(0.513743148)); /* c2-c6 */ + tmp13 = z1 - MULTIPLY(z3, FIX(2.176250899)); /* c2+c6 */ + + tmp20 = tmp10 + tmp12; + tmp24 = tmp10 - tmp12; + tmp21 = tmp11 + tmp13; + tmp23 = tmp11 - tmp13; + + /* Odd part */ + + z1 = DEQUANTIZE(inptr[DCTSIZE*1], quantptr[DCTSIZE*1]); + z2 = DEQUANTIZE(inptr[DCTSIZE*3], quantptr[DCTSIZE*3]); + z3 = DEQUANTIZE(inptr[DCTSIZE*5], quantptr[DCTSIZE*5]); + z4 = DEQUANTIZE(inptr[DCTSIZE*7], quantptr[DCTSIZE*7]); + + tmp11 = z2 + z4; + tmp13 = z2 - z4; + + tmp12 = MULTIPLY(tmp13, FIX(0.309016994)); /* (c3-c7)/2 */ + z5 = z3 << CONST_BITS; + + z2 = MULTIPLY(tmp11, FIX(0.951056516)); /* (c3+c7)/2 */ + z4 = z5 + tmp12; + + tmp10 = MULTIPLY(z1, FIX(1.396802247)) + z2 + z4; /* c1 */ + tmp14 = MULTIPLY(z1, FIX(0.221231742)) - z2 + z4; /* c9 */ + + z2 = MULTIPLY(tmp11, FIX(0.587785252)); /* (c1-c9)/2 */ + z4 = z5 - tmp12 - (tmp13 << (CONST_BITS - 1)); + + tmp12 = (z1 - tmp13 - z3) << PASS1_BITS; + + tmp11 = MULTIPLY(z1, FIX(1.260073511)) - z2 - z4; /* c3 */ + tmp13 = MULTIPLY(z1, FIX(0.642039522)) - z2 + z4; /* c7 */ + + /* Final output stage */ + + wsptr[8*0] = (int) RIGHT_SHIFT(tmp20 + tmp10, CONST_BITS-PASS1_BITS); + wsptr[8*9] = (int) RIGHT_SHIFT(tmp20 - tmp10, CONST_BITS-PASS1_BITS); + wsptr[8*1] = (int) RIGHT_SHIFT(tmp21 + tmp11, CONST_BITS-PASS1_BITS); + wsptr[8*8] = (int) RIGHT_SHIFT(tmp21 - tmp11, CONST_BITS-PASS1_BITS); + wsptr[8*2] = (int) (tmp22 + tmp12); + wsptr[8*7] = (int) (tmp22 - tmp12); + wsptr[8*3] = (int) RIGHT_SHIFT(tmp23 + tmp13, CONST_BITS-PASS1_BITS); + wsptr[8*6] = (int) RIGHT_SHIFT(tmp23 - tmp13, CONST_BITS-PASS1_BITS); + wsptr[8*4] = (int) RIGHT_SHIFT(tmp24 + tmp14, CONST_BITS-PASS1_BITS); + wsptr[8*5] = (int) RIGHT_SHIFT(tmp24 - tmp14, CONST_BITS-PASS1_BITS); + } + + /* Pass 2: process 10 rows from work array, store into output array. */ + + wsptr = workspace; + for (ctr = 0; ctr < 10; ctr++) { + outptr = output_buf[ctr] + output_col; + + /* Even part */ + + /* Add fudge factor here for final descale. */ + z3 = (INT32) wsptr[0] + (ONE << (PASS1_BITS+2)); + z3 <<= CONST_BITS; + z4 = (INT32) wsptr[4]; + z1 = MULTIPLY(z4, FIX(1.144122806)); /* c4 */ + z2 = MULTIPLY(z4, FIX(0.437016024)); /* c8 */ + tmp10 = z3 + z1; + tmp11 = z3 - z2; + + tmp22 = z3 - ((z1 - z2) << 1); /* c0 = (c4-c8)*2 */ + + z2 = (INT32) wsptr[2]; + z3 = (INT32) wsptr[6]; + + z1 = MULTIPLY(z2 + z3, FIX(0.831253876)); /* c6 */ + tmp12 = z1 + MULTIPLY(z2, FIX(0.513743148)); /* c2-c6 */ + tmp13 = z1 - MULTIPLY(z3, FIX(2.176250899)); /* c2+c6 */ + + tmp20 = tmp10 + tmp12; + tmp24 = tmp10 - tmp12; + tmp21 = tmp11 + tmp13; + tmp23 = tmp11 - tmp13; + + /* Odd part */ + + z1 = (INT32) wsptr[1]; + z2 = (INT32) wsptr[3]; + z3 = (INT32) wsptr[5]; + z3 <<= CONST_BITS; + z4 = (INT32) wsptr[7]; + + tmp11 = z2 + z4; + tmp13 = z2 - z4; + + tmp12 = MULTIPLY(tmp13, FIX(0.309016994)); /* (c3-c7)/2 */ + + z2 = MULTIPLY(tmp11, FIX(0.951056516)); /* (c3+c7)/2 */ + z4 = z3 + tmp12; + + tmp10 = MULTIPLY(z1, FIX(1.396802247)) + z2 + z4; /* c1 */ + tmp14 = MULTIPLY(z1, FIX(0.221231742)) - z2 + z4; /* c9 */ + + z2 = MULTIPLY(tmp11, FIX(0.587785252)); /* (c1-c9)/2 */ + z4 = z3 - tmp12 - (tmp13 << (CONST_BITS - 1)); + + tmp12 = ((z1 - tmp13) << CONST_BITS) - z3; + + tmp11 = MULTIPLY(z1, FIX(1.260073511)) - z2 - z4; /* c3 */ + tmp13 = MULTIPLY(z1, FIX(0.642039522)) - z2 + z4; /* c7 */ + + /* Final output stage */ + + outptr[0] = range_limit[(int) RIGHT_SHIFT(tmp20 + tmp10, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[9] = range_limit[(int) RIGHT_SHIFT(tmp20 - tmp10, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[1] = range_limit[(int) RIGHT_SHIFT(tmp21 + tmp11, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[8] = range_limit[(int) RIGHT_SHIFT(tmp21 - tmp11, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[2] = range_limit[(int) RIGHT_SHIFT(tmp22 + tmp12, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[7] = range_limit[(int) RIGHT_SHIFT(tmp22 - tmp12, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[3] = range_limit[(int) RIGHT_SHIFT(tmp23 + tmp13, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[6] = range_limit[(int) RIGHT_SHIFT(tmp23 - tmp13, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[4] = range_limit[(int) RIGHT_SHIFT(tmp24 + tmp14, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[5] = range_limit[(int) RIGHT_SHIFT(tmp24 - tmp14, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + + wsptr += 8; /* advance pointer to next row */ + } +} + + +/* + * Perform dequantization and inverse DCT on one block of coefficients, + * producing a 11x11 output block. + * + * Optimized algorithm with 24 multiplications in the 1-D kernel. + * cK represents sqrt(2) * cos(K*pi/22). + */ + +GLOBAL(void) +jpeg_idct_11x11 (j_decompress_ptr cinfo, jpeg_component_info * compptr, + JCOEFPTR coef_block, + JSAMPARRAY output_buf, JDIMENSION output_col) +{ + INT32 tmp10, tmp11, tmp12, tmp13, tmp14; + INT32 tmp20, tmp21, tmp22, tmp23, tmp24, tmp25; + INT32 z1, z2, z3, z4; + JCOEFPTR inptr; + ISLOW_MULT_TYPE * quantptr; + int * wsptr; + JSAMPROW outptr; + JSAMPLE *range_limit = IDCT_range_limit(cinfo); + int ctr; + int workspace[8*11]; /* buffers data between passes */ + SHIFT_TEMPS + + /* Pass 1: process columns from input, store into work array. */ + + inptr = coef_block; + quantptr = (ISLOW_MULT_TYPE *) compptr->dct_table; + wsptr = workspace; + for (ctr = 0; ctr < 8; ctr++, inptr++, quantptr++, wsptr++) { + /* Even part */ + + tmp10 = DEQUANTIZE(inptr[DCTSIZE*0], quantptr[DCTSIZE*0]); + tmp10 <<= CONST_BITS; + /* Add fudge factor here for final descale. */ + tmp10 += ONE << (CONST_BITS-PASS1_BITS-1); + + z1 = DEQUANTIZE(inptr[DCTSIZE*2], quantptr[DCTSIZE*2]); + z2 = DEQUANTIZE(inptr[DCTSIZE*4], quantptr[DCTSIZE*4]); + z3 = DEQUANTIZE(inptr[DCTSIZE*6], quantptr[DCTSIZE*6]); + + tmp20 = MULTIPLY(z2 - z3, FIX(2.546640132)); /* c2+c4 */ + tmp23 = MULTIPLY(z2 - z1, FIX(0.430815045)); /* c2-c6 */ + z4 = z1 + z3; + tmp24 = MULTIPLY(z4, - FIX(1.155664402)); /* -(c2-c10) */ + z4 -= z2; + tmp25 = tmp10 + MULTIPLY(z4, FIX(1.356927976)); /* c2 */ + tmp21 = tmp20 + tmp23 + tmp25 - + MULTIPLY(z2, FIX(1.821790775)); /* c2+c4+c10-c6 */ + tmp20 += tmp25 + MULTIPLY(z3, FIX(2.115825087)); /* c4+c6 */ + tmp23 += tmp25 - MULTIPLY(z1, FIX(1.513598477)); /* c6+c8 */ + tmp24 += tmp25; + tmp22 = tmp24 - MULTIPLY(z3, FIX(0.788749120)); /* c8+c10 */ + tmp24 += MULTIPLY(z2, FIX(1.944413522)) - /* c2+c8 */ + MULTIPLY(z1, FIX(1.390975730)); /* c4+c10 */ + tmp25 = tmp10 - MULTIPLY(z4, FIX(1.414213562)); /* c0 */ + + /* Odd part */ + + z1 = DEQUANTIZE(inptr[DCTSIZE*1], quantptr[DCTSIZE*1]); + z2 = DEQUANTIZE(inptr[DCTSIZE*3], quantptr[DCTSIZE*3]); + z3 = DEQUANTIZE(inptr[DCTSIZE*5], quantptr[DCTSIZE*5]); + z4 = DEQUANTIZE(inptr[DCTSIZE*7], quantptr[DCTSIZE*7]); + + tmp11 = z1 + z2; + tmp14 = MULTIPLY(tmp11 + z3 + z4, FIX(0.398430003)); /* c9 */ + tmp11 = MULTIPLY(tmp11, FIX(0.887983902)); /* c3-c9 */ + tmp12 = MULTIPLY(z1 + z3, FIX(0.670361295)); /* c5-c9 */ + tmp13 = tmp14 + MULTIPLY(z1 + z4, FIX(0.366151574)); /* c7-c9 */ + tmp10 = tmp11 + tmp12 + tmp13 - + MULTIPLY(z1, FIX(0.923107866)); /* c7+c5+c3-c1-2*c9 */ + z1 = tmp14 - MULTIPLY(z2 + z3, FIX(1.163011579)); /* c7+c9 */ + tmp11 += z1 + MULTIPLY(z2, FIX(2.073276588)); /* c1+c7+3*c9-c3 */ + tmp12 += z1 - MULTIPLY(z3, FIX(1.192193623)); /* c3+c5-c7-c9 */ + z1 = MULTIPLY(z2 + z4, - FIX(1.798248910)); /* -(c1+c9) */ + tmp11 += z1; + tmp13 += z1 + MULTIPLY(z4, FIX(2.102458632)); /* c1+c5+c9-c7 */ + tmp14 += MULTIPLY(z2, - FIX(1.467221301)) + /* -(c5+c9) */ + MULTIPLY(z3, FIX(1.001388905)) - /* c1-c9 */ + MULTIPLY(z4, FIX(1.684843907)); /* c3+c9 */ + + /* Final output stage */ + + wsptr[8*0] = (int) RIGHT_SHIFT(tmp20 + tmp10, CONST_BITS-PASS1_BITS); + wsptr[8*10] = (int) RIGHT_SHIFT(tmp20 - tmp10, CONST_BITS-PASS1_BITS); + wsptr[8*1] = (int) RIGHT_SHIFT(tmp21 + tmp11, CONST_BITS-PASS1_BITS); + wsptr[8*9] = (int) RIGHT_SHIFT(tmp21 - tmp11, CONST_BITS-PASS1_BITS); + wsptr[8*2] = (int) RIGHT_SHIFT(tmp22 + tmp12, CONST_BITS-PASS1_BITS); + wsptr[8*8] = (int) RIGHT_SHIFT(tmp22 - tmp12, CONST_BITS-PASS1_BITS); + wsptr[8*3] = (int) RIGHT_SHIFT(tmp23 + tmp13, CONST_BITS-PASS1_BITS); + wsptr[8*7] = (int) RIGHT_SHIFT(tmp23 - tmp13, CONST_BITS-PASS1_BITS); + wsptr[8*4] = (int) RIGHT_SHIFT(tmp24 + tmp14, CONST_BITS-PASS1_BITS); + wsptr[8*6] = (int) RIGHT_SHIFT(tmp24 - tmp14, CONST_BITS-PASS1_BITS); + wsptr[8*5] = (int) RIGHT_SHIFT(tmp25, CONST_BITS-PASS1_BITS); + } + + /* Pass 2: process 11 rows from work array, store into output array. */ + + wsptr = workspace; + for (ctr = 0; ctr < 11; ctr++) { + outptr = output_buf[ctr] + output_col; + + /* Even part */ + + /* Add fudge factor here for final descale. */ + tmp10 = (INT32) wsptr[0] + (ONE << (PASS1_BITS+2)); + tmp10 <<= CONST_BITS; + + z1 = (INT32) wsptr[2]; + z2 = (INT32) wsptr[4]; + z3 = (INT32) wsptr[6]; + + tmp20 = MULTIPLY(z2 - z3, FIX(2.546640132)); /* c2+c4 */ + tmp23 = MULTIPLY(z2 - z1, FIX(0.430815045)); /* c2-c6 */ + z4 = z1 + z3; + tmp24 = MULTIPLY(z4, - FIX(1.155664402)); /* -(c2-c10) */ + z4 -= z2; + tmp25 = tmp10 + MULTIPLY(z4, FIX(1.356927976)); /* c2 */ + tmp21 = tmp20 + tmp23 + tmp25 - + MULTIPLY(z2, FIX(1.821790775)); /* c2+c4+c10-c6 */ + tmp20 += tmp25 + MULTIPLY(z3, FIX(2.115825087)); /* c4+c6 */ + tmp23 += tmp25 - MULTIPLY(z1, FIX(1.513598477)); /* c6+c8 */ + tmp24 += tmp25; + tmp22 = tmp24 - MULTIPLY(z3, FIX(0.788749120)); /* c8+c10 */ + tmp24 += MULTIPLY(z2, FIX(1.944413522)) - /* c2+c8 */ + MULTIPLY(z1, FIX(1.390975730)); /* c4+c10 */ + tmp25 = tmp10 - MULTIPLY(z4, FIX(1.414213562)); /* c0 */ + + /* Odd part */ + + z1 = (INT32) wsptr[1]; + z2 = (INT32) wsptr[3]; + z3 = (INT32) wsptr[5]; + z4 = (INT32) wsptr[7]; + + tmp11 = z1 + z2; + tmp14 = MULTIPLY(tmp11 + z3 + z4, FIX(0.398430003)); /* c9 */ + tmp11 = MULTIPLY(tmp11, FIX(0.887983902)); /* c3-c9 */ + tmp12 = MULTIPLY(z1 + z3, FIX(0.670361295)); /* c5-c9 */ + tmp13 = tmp14 + MULTIPLY(z1 + z4, FIX(0.366151574)); /* c7-c9 */ + tmp10 = tmp11 + tmp12 + tmp13 - + MULTIPLY(z1, FIX(0.923107866)); /* c7+c5+c3-c1-2*c9 */ + z1 = tmp14 - MULTIPLY(z2 + z3, FIX(1.163011579)); /* c7+c9 */ + tmp11 += z1 + MULTIPLY(z2, FIX(2.073276588)); /* c1+c7+3*c9-c3 */ + tmp12 += z1 - MULTIPLY(z3, FIX(1.192193623)); /* c3+c5-c7-c9 */ + z1 = MULTIPLY(z2 + z4, - FIX(1.798248910)); /* -(c1+c9) */ + tmp11 += z1; + tmp13 += z1 + MULTIPLY(z4, FIX(2.102458632)); /* c1+c5+c9-c7 */ + tmp14 += MULTIPLY(z2, - FIX(1.467221301)) + /* -(c5+c9) */ + MULTIPLY(z3, FIX(1.001388905)) - /* c1-c9 */ + MULTIPLY(z4, FIX(1.684843907)); /* c3+c9 */ + + /* Final output stage */ + + outptr[0] = range_limit[(int) RIGHT_SHIFT(tmp20 + tmp10, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[10] = range_limit[(int) RIGHT_SHIFT(tmp20 - tmp10, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[1] = range_limit[(int) RIGHT_SHIFT(tmp21 + tmp11, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[9] = range_limit[(int) RIGHT_SHIFT(tmp21 - tmp11, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[2] = range_limit[(int) RIGHT_SHIFT(tmp22 + tmp12, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[8] = range_limit[(int) RIGHT_SHIFT(tmp22 - tmp12, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[3] = range_limit[(int) RIGHT_SHIFT(tmp23 + tmp13, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[7] = range_limit[(int) RIGHT_SHIFT(tmp23 - tmp13, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[4] = range_limit[(int) RIGHT_SHIFT(tmp24 + tmp14, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[6] = range_limit[(int) RIGHT_SHIFT(tmp24 - tmp14, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[5] = range_limit[(int) RIGHT_SHIFT(tmp25, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + + wsptr += 8; /* advance pointer to next row */ + } +} + + +/* + * Perform dequantization and inverse DCT on one block of coefficients, + * producing a 12x12 output block. + * + * Optimized algorithm with 15 multiplications in the 1-D kernel. + * cK represents sqrt(2) * cos(K*pi/24). + */ + +GLOBAL(void) +jpeg_idct_12x12 (j_decompress_ptr cinfo, jpeg_component_info * compptr, + JCOEFPTR coef_block, + JSAMPARRAY output_buf, JDIMENSION output_col) +{ + INT32 tmp10, tmp11, tmp12, tmp13, tmp14, tmp15; + INT32 tmp20, tmp21, tmp22, tmp23, tmp24, tmp25; + INT32 z1, z2, z3, z4; + JCOEFPTR inptr; + ISLOW_MULT_TYPE * quantptr; + int * wsptr; + JSAMPROW outptr; + JSAMPLE *range_limit = IDCT_range_limit(cinfo); + int ctr; + int workspace[8*12]; /* buffers data between passes */ + SHIFT_TEMPS + + /* Pass 1: process columns from input, store into work array. */ + + inptr = coef_block; + quantptr = (ISLOW_MULT_TYPE *) compptr->dct_table; + wsptr = workspace; + for (ctr = 0; ctr < 8; ctr++, inptr++, quantptr++, wsptr++) { + /* Even part */ + + z3 = DEQUANTIZE(inptr[DCTSIZE*0], quantptr[DCTSIZE*0]); + z3 <<= CONST_BITS; + /* Add fudge factor here for final descale. */ + z3 += ONE << (CONST_BITS-PASS1_BITS-1); + + z4 = DEQUANTIZE(inptr[DCTSIZE*4], quantptr[DCTSIZE*4]); + z4 = MULTIPLY(z4, FIX(1.224744871)); /* c4 */ + + tmp10 = z3 + z4; + tmp11 = z3 - z4; + + z1 = DEQUANTIZE(inptr[DCTSIZE*2], quantptr[DCTSIZE*2]); + z4 = MULTIPLY(z1, FIX(1.366025404)); /* c2 */ + z1 <<= CONST_BITS; + z2 = DEQUANTIZE(inptr[DCTSIZE*6], quantptr[DCTSIZE*6]); + z2 <<= CONST_BITS; + + tmp12 = z1 - z2; + + tmp21 = z3 + tmp12; + tmp24 = z3 - tmp12; + + tmp12 = z4 + z2; + + tmp20 = tmp10 + tmp12; + tmp25 = tmp10 - tmp12; + + tmp12 = z4 - z1 - z2; + + tmp22 = tmp11 + tmp12; + tmp23 = tmp11 - tmp12; + + /* Odd part */ + + z1 = DEQUANTIZE(inptr[DCTSIZE*1], quantptr[DCTSIZE*1]); + z2 = DEQUANTIZE(inptr[DCTSIZE*3], quantptr[DCTSIZE*3]); + z3 = DEQUANTIZE(inptr[DCTSIZE*5], quantptr[DCTSIZE*5]); + z4 = DEQUANTIZE(inptr[DCTSIZE*7], quantptr[DCTSIZE*7]); + + tmp11 = MULTIPLY(z2, FIX(1.306562965)); /* c3 */ + tmp14 = MULTIPLY(z2, - FIX_0_541196100); /* -c9 */ + + tmp10 = z1 + z3; + tmp15 = MULTIPLY(tmp10 + z4, FIX(0.860918669)); /* c7 */ + tmp12 = tmp15 + MULTIPLY(tmp10, FIX(0.261052384)); /* c5-c7 */ + tmp10 = tmp12 + tmp11 + MULTIPLY(z1, FIX(0.280143716)); /* c1-c5 */ + tmp13 = MULTIPLY(z3 + z4, - FIX(1.045510580)); /* -(c7+c11) */ + tmp12 += tmp13 + tmp14 - MULTIPLY(z3, FIX(1.478575242)); /* c1+c5-c7-c11 */ + tmp13 += tmp15 - tmp11 + MULTIPLY(z4, FIX(1.586706681)); /* c1+c11 */ + tmp15 += tmp14 - MULTIPLY(z1, FIX(0.676326758)) - /* c7-c11 */ + MULTIPLY(z4, FIX(1.982889723)); /* c5+c7 */ + + z1 -= z4; + z2 -= z3; + z3 = MULTIPLY(z1 + z2, FIX_0_541196100); /* c9 */ + tmp11 = z3 + MULTIPLY(z1, FIX_0_765366865); /* c3-c9 */ + tmp14 = z3 - MULTIPLY(z2, FIX_1_847759065); /* c3+c9 */ + + /* Final output stage */ + + wsptr[8*0] = (int) RIGHT_SHIFT(tmp20 + tmp10, CONST_BITS-PASS1_BITS); + wsptr[8*11] = (int) RIGHT_SHIFT(tmp20 - tmp10, CONST_BITS-PASS1_BITS); + wsptr[8*1] = (int) RIGHT_SHIFT(tmp21 + tmp11, CONST_BITS-PASS1_BITS); + wsptr[8*10] = (int) RIGHT_SHIFT(tmp21 - tmp11, CONST_BITS-PASS1_BITS); + wsptr[8*2] = (int) RIGHT_SHIFT(tmp22 + tmp12, CONST_BITS-PASS1_BITS); + wsptr[8*9] = (int) RIGHT_SHIFT(tmp22 - tmp12, CONST_BITS-PASS1_BITS); + wsptr[8*3] = (int) RIGHT_SHIFT(tmp23 + tmp13, CONST_BITS-PASS1_BITS); + wsptr[8*8] = (int) RIGHT_SHIFT(tmp23 - tmp13, CONST_BITS-PASS1_BITS); + wsptr[8*4] = (int) RIGHT_SHIFT(tmp24 + tmp14, CONST_BITS-PASS1_BITS); + wsptr[8*7] = (int) RIGHT_SHIFT(tmp24 - tmp14, CONST_BITS-PASS1_BITS); + wsptr[8*5] = (int) RIGHT_SHIFT(tmp25 + tmp15, CONST_BITS-PASS1_BITS); + wsptr[8*6] = (int) RIGHT_SHIFT(tmp25 - tmp15, CONST_BITS-PASS1_BITS); + } + + /* Pass 2: process 12 rows from work array, store into output array. */ + + wsptr = workspace; + for (ctr = 0; ctr < 12; ctr++) { + outptr = output_buf[ctr] + output_col; + + /* Even part */ + + /* Add fudge factor here for final descale. */ + z3 = (INT32) wsptr[0] + (ONE << (PASS1_BITS+2)); + z3 <<= CONST_BITS; + + z4 = (INT32) wsptr[4]; + z4 = MULTIPLY(z4, FIX(1.224744871)); /* c4 */ + + tmp10 = z3 + z4; + tmp11 = z3 - z4; + + z1 = (INT32) wsptr[2]; + z4 = MULTIPLY(z1, FIX(1.366025404)); /* c2 */ + z1 <<= CONST_BITS; + z2 = (INT32) wsptr[6]; + z2 <<= CONST_BITS; + + tmp12 = z1 - z2; + + tmp21 = z3 + tmp12; + tmp24 = z3 - tmp12; + + tmp12 = z4 + z2; + + tmp20 = tmp10 + tmp12; + tmp25 = tmp10 - tmp12; + + tmp12 = z4 - z1 - z2; + + tmp22 = tmp11 + tmp12; + tmp23 = tmp11 - tmp12; + + /* Odd part */ + + z1 = (INT32) wsptr[1]; + z2 = (INT32) wsptr[3]; + z3 = (INT32) wsptr[5]; + z4 = (INT32) wsptr[7]; + + tmp11 = MULTIPLY(z2, FIX(1.306562965)); /* c3 */ + tmp14 = MULTIPLY(z2, - FIX_0_541196100); /* -c9 */ + + tmp10 = z1 + z3; + tmp15 = MULTIPLY(tmp10 + z4, FIX(0.860918669)); /* c7 */ + tmp12 = tmp15 + MULTIPLY(tmp10, FIX(0.261052384)); /* c5-c7 */ + tmp10 = tmp12 + tmp11 + MULTIPLY(z1, FIX(0.280143716)); /* c1-c5 */ + tmp13 = MULTIPLY(z3 + z4, - FIX(1.045510580)); /* -(c7+c11) */ + tmp12 += tmp13 + tmp14 - MULTIPLY(z3, FIX(1.478575242)); /* c1+c5-c7-c11 */ + tmp13 += tmp15 - tmp11 + MULTIPLY(z4, FIX(1.586706681)); /* c1+c11 */ + tmp15 += tmp14 - MULTIPLY(z1, FIX(0.676326758)) - /* c7-c11 */ + MULTIPLY(z4, FIX(1.982889723)); /* c5+c7 */ + + z1 -= z4; + z2 -= z3; + z3 = MULTIPLY(z1 + z2, FIX_0_541196100); /* c9 */ + tmp11 = z3 + MULTIPLY(z1, FIX_0_765366865); /* c3-c9 */ + tmp14 = z3 - MULTIPLY(z2, FIX_1_847759065); /* c3+c9 */ + + /* Final output stage */ + + outptr[0] = range_limit[(int) RIGHT_SHIFT(tmp20 + tmp10, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[11] = range_limit[(int) RIGHT_SHIFT(tmp20 - tmp10, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[1] = range_limit[(int) RIGHT_SHIFT(tmp21 + tmp11, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[10] = range_limit[(int) RIGHT_SHIFT(tmp21 - tmp11, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[2] = range_limit[(int) RIGHT_SHIFT(tmp22 + tmp12, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[9] = range_limit[(int) RIGHT_SHIFT(tmp22 - tmp12, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[3] = range_limit[(int) RIGHT_SHIFT(tmp23 + tmp13, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[8] = range_limit[(int) RIGHT_SHIFT(tmp23 - tmp13, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[4] = range_limit[(int) RIGHT_SHIFT(tmp24 + tmp14, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[7] = range_limit[(int) RIGHT_SHIFT(tmp24 - tmp14, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[5] = range_limit[(int) RIGHT_SHIFT(tmp25 + tmp15, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[6] = range_limit[(int) RIGHT_SHIFT(tmp25 - tmp15, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + + wsptr += 8; /* advance pointer to next row */ + } +} + + +/* + * Perform dequantization and inverse DCT on one block of coefficients, + * producing a 13x13 output block. + * + * Optimized algorithm with 29 multiplications in the 1-D kernel. + * cK represents sqrt(2) * cos(K*pi/26). + */ + +GLOBAL(void) +jpeg_idct_13x13 (j_decompress_ptr cinfo, jpeg_component_info * compptr, + JCOEFPTR coef_block, + JSAMPARRAY output_buf, JDIMENSION output_col) +{ + INT32 tmp10, tmp11, tmp12, tmp13, tmp14, tmp15; + INT32 tmp20, tmp21, tmp22, tmp23, tmp24, tmp25, tmp26; + INT32 z1, z2, z3, z4; + JCOEFPTR inptr; + ISLOW_MULT_TYPE * quantptr; + int * wsptr; + JSAMPROW outptr; + JSAMPLE *range_limit = IDCT_range_limit(cinfo); + int ctr; + int workspace[8*13]; /* buffers data between passes */ + SHIFT_TEMPS + + /* Pass 1: process columns from input, store into work array. */ + + inptr = coef_block; + quantptr = (ISLOW_MULT_TYPE *) compptr->dct_table; + wsptr = workspace; + for (ctr = 0; ctr < 8; ctr++, inptr++, quantptr++, wsptr++) { + /* Even part */ + + z1 = DEQUANTIZE(inptr[DCTSIZE*0], quantptr[DCTSIZE*0]); + z1 <<= CONST_BITS; + /* Add fudge factor here for final descale. */ + z1 += ONE << (CONST_BITS-PASS1_BITS-1); + + z2 = DEQUANTIZE(inptr[DCTSIZE*2], quantptr[DCTSIZE*2]); + z3 = DEQUANTIZE(inptr[DCTSIZE*4], quantptr[DCTSIZE*4]); + z4 = DEQUANTIZE(inptr[DCTSIZE*6], quantptr[DCTSIZE*6]); + + tmp10 = z3 + z4; + tmp11 = z3 - z4; + + tmp12 = MULTIPLY(tmp10, FIX(1.155388986)); /* (c4+c6)/2 */ + tmp13 = MULTIPLY(tmp11, FIX(0.096834934)) + z1; /* (c4-c6)/2 */ + + tmp20 = MULTIPLY(z2, FIX(1.373119086)) + tmp12 + tmp13; /* c2 */ + tmp22 = MULTIPLY(z2, FIX(0.501487041)) - tmp12 + tmp13; /* c10 */ + + tmp12 = MULTIPLY(tmp10, FIX(0.316450131)); /* (c8-c12)/2 */ + tmp13 = MULTIPLY(tmp11, FIX(0.486914739)) + z1; /* (c8+c12)/2 */ + + tmp21 = MULTIPLY(z2, FIX(1.058554052)) - tmp12 + tmp13; /* c6 */ + tmp25 = MULTIPLY(z2, - FIX(1.252223920)) + tmp12 + tmp13; /* c4 */ + + tmp12 = MULTIPLY(tmp10, FIX(0.435816023)); /* (c2-c10)/2 */ + tmp13 = MULTIPLY(tmp11, FIX(0.937303064)) - z1; /* (c2+c10)/2 */ + + tmp23 = MULTIPLY(z2, - FIX(0.170464608)) - tmp12 - tmp13; /* c12 */ + tmp24 = MULTIPLY(z2, - FIX(0.803364869)) + tmp12 - tmp13; /* c8 */ + + tmp26 = MULTIPLY(tmp11 - z2, FIX(1.414213562)) + z1; /* c0 */ + + /* Odd part */ + + z1 = DEQUANTIZE(inptr[DCTSIZE*1], quantptr[DCTSIZE*1]); + z2 = DEQUANTIZE(inptr[DCTSIZE*3], quantptr[DCTSIZE*3]); + z3 = DEQUANTIZE(inptr[DCTSIZE*5], quantptr[DCTSIZE*5]); + z4 = DEQUANTIZE(inptr[DCTSIZE*7], quantptr[DCTSIZE*7]); + + tmp11 = MULTIPLY(z1 + z2, FIX(1.322312651)); /* c3 */ + tmp12 = MULTIPLY(z1 + z3, FIX(1.163874945)); /* c5 */ + tmp15 = z1 + z4; + tmp13 = MULTIPLY(tmp15, FIX(0.937797057)); /* c7 */ + tmp10 = tmp11 + tmp12 + tmp13 - + MULTIPLY(z1, FIX(2.020082300)); /* c7+c5+c3-c1 */ + tmp14 = MULTIPLY(z2 + z3, - FIX(0.338443458)); /* -c11 */ + tmp11 += tmp14 + MULTIPLY(z2, FIX(0.837223564)); /* c5+c9+c11-c3 */ + tmp12 += tmp14 - MULTIPLY(z3, FIX(1.572116027)); /* c1+c5-c9-c11 */ + tmp14 = MULTIPLY(z2 + z4, - FIX(1.163874945)); /* -c5 */ + tmp11 += tmp14; + tmp13 += tmp14 + MULTIPLY(z4, FIX(2.205608352)); /* c3+c5+c9-c7 */ + tmp14 = MULTIPLY(z3 + z4, - FIX(0.657217813)); /* -c9 */ + tmp12 += tmp14; + tmp13 += tmp14; + tmp15 = MULTIPLY(tmp15, FIX(0.338443458)); /* c11 */ + tmp14 = tmp15 + MULTIPLY(z1, FIX(0.318774355)) - /* c9-c11 */ + MULTIPLY(z2, FIX(0.466105296)); /* c1-c7 */ + z1 = MULTIPLY(z3 - z2, FIX(0.937797057)); /* c7 */ + tmp14 += z1; + tmp15 += z1 + MULTIPLY(z3, FIX(0.384515595)) - /* c3-c7 */ + MULTIPLY(z4, FIX(1.742345811)); /* c1+c11 */ + + /* Final output stage */ + + wsptr[8*0] = (int) RIGHT_SHIFT(tmp20 + tmp10, CONST_BITS-PASS1_BITS); + wsptr[8*12] = (int) RIGHT_SHIFT(tmp20 - tmp10, CONST_BITS-PASS1_BITS); + wsptr[8*1] = (int) RIGHT_SHIFT(tmp21 + tmp11, CONST_BITS-PASS1_BITS); + wsptr[8*11] = (int) RIGHT_SHIFT(tmp21 - tmp11, CONST_BITS-PASS1_BITS); + wsptr[8*2] = (int) RIGHT_SHIFT(tmp22 + tmp12, CONST_BITS-PASS1_BITS); + wsptr[8*10] = (int) RIGHT_SHIFT(tmp22 - tmp12, CONST_BITS-PASS1_BITS); + wsptr[8*3] = (int) RIGHT_SHIFT(tmp23 + tmp13, CONST_BITS-PASS1_BITS); + wsptr[8*9] = (int) RIGHT_SHIFT(tmp23 - tmp13, CONST_BITS-PASS1_BITS); + wsptr[8*4] = (int) RIGHT_SHIFT(tmp24 + tmp14, CONST_BITS-PASS1_BITS); + wsptr[8*8] = (int) RIGHT_SHIFT(tmp24 - tmp14, CONST_BITS-PASS1_BITS); + wsptr[8*5] = (int) RIGHT_SHIFT(tmp25 + tmp15, CONST_BITS-PASS1_BITS); + wsptr[8*7] = (int) RIGHT_SHIFT(tmp25 - tmp15, CONST_BITS-PASS1_BITS); + wsptr[8*6] = (int) RIGHT_SHIFT(tmp26, CONST_BITS-PASS1_BITS); + } + + /* Pass 2: process 13 rows from work array, store into output array. */ + + wsptr = workspace; + for (ctr = 0; ctr < 13; ctr++) { + outptr = output_buf[ctr] + output_col; + + /* Even part */ + + /* Add fudge factor here for final descale. */ + z1 = (INT32) wsptr[0] + (ONE << (PASS1_BITS+2)); + z1 <<= CONST_BITS; + + z2 = (INT32) wsptr[2]; + z3 = (INT32) wsptr[4]; + z4 = (INT32) wsptr[6]; + + tmp10 = z3 + z4; + tmp11 = z3 - z4; + + tmp12 = MULTIPLY(tmp10, FIX(1.155388986)); /* (c4+c6)/2 */ + tmp13 = MULTIPLY(tmp11, FIX(0.096834934)) + z1; /* (c4-c6)/2 */ + + tmp20 = MULTIPLY(z2, FIX(1.373119086)) + tmp12 + tmp13; /* c2 */ + tmp22 = MULTIPLY(z2, FIX(0.501487041)) - tmp12 + tmp13; /* c10 */ + + tmp12 = MULTIPLY(tmp10, FIX(0.316450131)); /* (c8-c12)/2 */ + tmp13 = MULTIPLY(tmp11, FIX(0.486914739)) + z1; /* (c8+c12)/2 */ + + tmp21 = MULTIPLY(z2, FIX(1.058554052)) - tmp12 + tmp13; /* c6 */ + tmp25 = MULTIPLY(z2, - FIX(1.252223920)) + tmp12 + tmp13; /* c4 */ + + tmp12 = MULTIPLY(tmp10, FIX(0.435816023)); /* (c2-c10)/2 */ + tmp13 = MULTIPLY(tmp11, FIX(0.937303064)) - z1; /* (c2+c10)/2 */ + + tmp23 = MULTIPLY(z2, - FIX(0.170464608)) - tmp12 - tmp13; /* c12 */ + tmp24 = MULTIPLY(z2, - FIX(0.803364869)) + tmp12 - tmp13; /* c8 */ + + tmp26 = MULTIPLY(tmp11 - z2, FIX(1.414213562)) + z1; /* c0 */ + + /* Odd part */ + + z1 = (INT32) wsptr[1]; + z2 = (INT32) wsptr[3]; + z3 = (INT32) wsptr[5]; + z4 = (INT32) wsptr[7]; + + tmp11 = MULTIPLY(z1 + z2, FIX(1.322312651)); /* c3 */ + tmp12 = MULTIPLY(z1 + z3, FIX(1.163874945)); /* c5 */ + tmp15 = z1 + z4; + tmp13 = MULTIPLY(tmp15, FIX(0.937797057)); /* c7 */ + tmp10 = tmp11 + tmp12 + tmp13 - + MULTIPLY(z1, FIX(2.020082300)); /* c7+c5+c3-c1 */ + tmp14 = MULTIPLY(z2 + z3, - FIX(0.338443458)); /* -c11 */ + tmp11 += tmp14 + MULTIPLY(z2, FIX(0.837223564)); /* c5+c9+c11-c3 */ + tmp12 += tmp14 - MULTIPLY(z3, FIX(1.572116027)); /* c1+c5-c9-c11 */ + tmp14 = MULTIPLY(z2 + z4, - FIX(1.163874945)); /* -c5 */ + tmp11 += tmp14; + tmp13 += tmp14 + MULTIPLY(z4, FIX(2.205608352)); /* c3+c5+c9-c7 */ + tmp14 = MULTIPLY(z3 + z4, - FIX(0.657217813)); /* -c9 */ + tmp12 += tmp14; + tmp13 += tmp14; + tmp15 = MULTIPLY(tmp15, FIX(0.338443458)); /* c11 */ + tmp14 = tmp15 + MULTIPLY(z1, FIX(0.318774355)) - /* c9-c11 */ + MULTIPLY(z2, FIX(0.466105296)); /* c1-c7 */ + z1 = MULTIPLY(z3 - z2, FIX(0.937797057)); /* c7 */ + tmp14 += z1; + tmp15 += z1 + MULTIPLY(z3, FIX(0.384515595)) - /* c3-c7 */ + MULTIPLY(z4, FIX(1.742345811)); /* c1+c11 */ + + /* Final output stage */ + + outptr[0] = range_limit[(int) RIGHT_SHIFT(tmp20 + tmp10, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[12] = range_limit[(int) RIGHT_SHIFT(tmp20 - tmp10, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[1] = range_limit[(int) RIGHT_SHIFT(tmp21 + tmp11, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[11] = range_limit[(int) RIGHT_SHIFT(tmp21 - tmp11, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[2] = range_limit[(int) RIGHT_SHIFT(tmp22 + tmp12, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[10] = range_limit[(int) RIGHT_SHIFT(tmp22 - tmp12, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[3] = range_limit[(int) RIGHT_SHIFT(tmp23 + tmp13, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[9] = range_limit[(int) RIGHT_SHIFT(tmp23 - tmp13, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[4] = range_limit[(int) RIGHT_SHIFT(tmp24 + tmp14, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[8] = range_limit[(int) RIGHT_SHIFT(tmp24 - tmp14, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[5] = range_limit[(int) RIGHT_SHIFT(tmp25 + tmp15, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[7] = range_limit[(int) RIGHT_SHIFT(tmp25 - tmp15, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[6] = range_limit[(int) RIGHT_SHIFT(tmp26, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + + wsptr += 8; /* advance pointer to next row */ + } +} + + +/* + * Perform dequantization and inverse DCT on one block of coefficients, + * producing a 14x14 output block. + * + * Optimized algorithm with 20 multiplications in the 1-D kernel. + * cK represents sqrt(2) * cos(K*pi/28). + */ + +GLOBAL(void) +jpeg_idct_14x14 (j_decompress_ptr cinfo, jpeg_component_info * compptr, + JCOEFPTR coef_block, + JSAMPARRAY output_buf, JDIMENSION output_col) +{ + INT32 tmp10, tmp11, tmp12, tmp13, tmp14, tmp15, tmp16; + INT32 tmp20, tmp21, tmp22, tmp23, tmp24, tmp25, tmp26; + INT32 z1, z2, z3, z4; + JCOEFPTR inptr; + ISLOW_MULT_TYPE * quantptr; + int * wsptr; + JSAMPROW outptr; + JSAMPLE *range_limit = IDCT_range_limit(cinfo); + int ctr; + int workspace[8*14]; /* buffers data between passes */ + SHIFT_TEMPS + + /* Pass 1: process columns from input, store into work array. */ + + inptr = coef_block; + quantptr = (ISLOW_MULT_TYPE *) compptr->dct_table; + wsptr = workspace; + for (ctr = 0; ctr < 8; ctr++, inptr++, quantptr++, wsptr++) { + /* Even part */ + + z1 = DEQUANTIZE(inptr[DCTSIZE*0], quantptr[DCTSIZE*0]); + z1 <<= CONST_BITS; + /* Add fudge factor here for final descale. */ + z1 += ONE << (CONST_BITS-PASS1_BITS-1); + z4 = DEQUANTIZE(inptr[DCTSIZE*4], quantptr[DCTSIZE*4]); + z2 = MULTIPLY(z4, FIX(1.274162392)); /* c4 */ + z3 = MULTIPLY(z4, FIX(0.314692123)); /* c12 */ + z4 = MULTIPLY(z4, FIX(0.881747734)); /* c8 */ + + tmp10 = z1 + z2; + tmp11 = z1 + z3; + tmp12 = z1 - z4; + + tmp23 = RIGHT_SHIFT(z1 - ((z2 + z3 - z4) << 1), /* c0 = (c4+c12-c8)*2 */ + CONST_BITS-PASS1_BITS); + + z1 = DEQUANTIZE(inptr[DCTSIZE*2], quantptr[DCTSIZE*2]); + z2 = DEQUANTIZE(inptr[DCTSIZE*6], quantptr[DCTSIZE*6]); + + z3 = MULTIPLY(z1 + z2, FIX(1.105676686)); /* c6 */ + + tmp13 = z3 + MULTIPLY(z1, FIX(0.273079590)); /* c2-c6 */ + tmp14 = z3 - MULTIPLY(z2, FIX(1.719280954)); /* c6+c10 */ + tmp15 = MULTIPLY(z1, FIX(0.613604268)) - /* c10 */ + MULTIPLY(z2, FIX(1.378756276)); /* c2 */ + + tmp20 = tmp10 + tmp13; + tmp26 = tmp10 - tmp13; + tmp21 = tmp11 + tmp14; + tmp25 = tmp11 - tmp14; + tmp22 = tmp12 + tmp15; + tmp24 = tmp12 - tmp15; + + /* Odd part */ + + z1 = DEQUANTIZE(inptr[DCTSIZE*1], quantptr[DCTSIZE*1]); + z2 = DEQUANTIZE(inptr[DCTSIZE*3], quantptr[DCTSIZE*3]); + z3 = DEQUANTIZE(inptr[DCTSIZE*5], quantptr[DCTSIZE*5]); + z4 = DEQUANTIZE(inptr[DCTSIZE*7], quantptr[DCTSIZE*7]); + tmp13 = z4 << CONST_BITS; + + tmp14 = z1 + z3; + tmp11 = MULTIPLY(z1 + z2, FIX(1.334852607)); /* c3 */ + tmp12 = MULTIPLY(tmp14, FIX(1.197448846)); /* c5 */ + tmp10 = tmp11 + tmp12 + tmp13 - MULTIPLY(z1, FIX(1.126980169)); /* c3+c5-c1 */ + tmp14 = MULTIPLY(tmp14, FIX(0.752406978)); /* c9 */ + tmp16 = tmp14 - MULTIPLY(z1, FIX(1.061150426)); /* c9+c11-c13 */ + z1 -= z2; + tmp15 = MULTIPLY(z1, FIX(0.467085129)) - tmp13; /* c11 */ + tmp16 += tmp15; + z1 += z4; + z4 = MULTIPLY(z2 + z3, - FIX(0.158341681)) - tmp13; /* -c13 */ + tmp11 += z4 - MULTIPLY(z2, FIX(0.424103948)); /* c3-c9-c13 */ + tmp12 += z4 - MULTIPLY(z3, FIX(2.373959773)); /* c3+c5-c13 */ + z4 = MULTIPLY(z3 - z2, FIX(1.405321284)); /* c1 */ + tmp14 += z4 + tmp13 - MULTIPLY(z3, FIX(1.6906431334)); /* c1+c9-c11 */ + tmp15 += z4 + MULTIPLY(z2, FIX(0.674957567)); /* c1+c11-c5 */ + + tmp13 = (z1 - z3) << PASS1_BITS; + + /* Final output stage */ + + wsptr[8*0] = (int) RIGHT_SHIFT(tmp20 + tmp10, CONST_BITS-PASS1_BITS); + wsptr[8*13] = (int) RIGHT_SHIFT(tmp20 - tmp10, CONST_BITS-PASS1_BITS); + wsptr[8*1] = (int) RIGHT_SHIFT(tmp21 + tmp11, CONST_BITS-PASS1_BITS); + wsptr[8*12] = (int) RIGHT_SHIFT(tmp21 - tmp11, CONST_BITS-PASS1_BITS); + wsptr[8*2] = (int) RIGHT_SHIFT(tmp22 + tmp12, CONST_BITS-PASS1_BITS); + wsptr[8*11] = (int) RIGHT_SHIFT(tmp22 - tmp12, CONST_BITS-PASS1_BITS); + wsptr[8*3] = (int) (tmp23 + tmp13); + wsptr[8*10] = (int) (tmp23 - tmp13); + wsptr[8*4] = (int) RIGHT_SHIFT(tmp24 + tmp14, CONST_BITS-PASS1_BITS); + wsptr[8*9] = (int) RIGHT_SHIFT(tmp24 - tmp14, CONST_BITS-PASS1_BITS); + wsptr[8*5] = (int) RIGHT_SHIFT(tmp25 + tmp15, CONST_BITS-PASS1_BITS); + wsptr[8*8] = (int) RIGHT_SHIFT(tmp25 - tmp15, CONST_BITS-PASS1_BITS); + wsptr[8*6] = (int) RIGHT_SHIFT(tmp26 + tmp16, CONST_BITS-PASS1_BITS); + wsptr[8*7] = (int) RIGHT_SHIFT(tmp26 - tmp16, CONST_BITS-PASS1_BITS); + } + + /* Pass 2: process 14 rows from work array, store into output array. */ + + wsptr = workspace; + for (ctr = 0; ctr < 14; ctr++) { + outptr = output_buf[ctr] + output_col; + + /* Even part */ + + /* Add fudge factor here for final descale. */ + z1 = (INT32) wsptr[0] + (ONE << (PASS1_BITS+2)); + z1 <<= CONST_BITS; + z4 = (INT32) wsptr[4]; + z2 = MULTIPLY(z4, FIX(1.274162392)); /* c4 */ + z3 = MULTIPLY(z4, FIX(0.314692123)); /* c12 */ + z4 = MULTIPLY(z4, FIX(0.881747734)); /* c8 */ + + tmp10 = z1 + z2; + tmp11 = z1 + z3; + tmp12 = z1 - z4; + + tmp23 = z1 - ((z2 + z3 - z4) << 1); /* c0 = (c4+c12-c8)*2 */ + + z1 = (INT32) wsptr[2]; + z2 = (INT32) wsptr[6]; + + z3 = MULTIPLY(z1 + z2, FIX(1.105676686)); /* c6 */ + + tmp13 = z3 + MULTIPLY(z1, FIX(0.273079590)); /* c2-c6 */ + tmp14 = z3 - MULTIPLY(z2, FIX(1.719280954)); /* c6+c10 */ + tmp15 = MULTIPLY(z1, FIX(0.613604268)) - /* c10 */ + MULTIPLY(z2, FIX(1.378756276)); /* c2 */ + + tmp20 = tmp10 + tmp13; + tmp26 = tmp10 - tmp13; + tmp21 = tmp11 + tmp14; + tmp25 = tmp11 - tmp14; + tmp22 = tmp12 + tmp15; + tmp24 = tmp12 - tmp15; + + /* Odd part */ + + z1 = (INT32) wsptr[1]; + z2 = (INT32) wsptr[3]; + z3 = (INT32) wsptr[5]; + z4 = (INT32) wsptr[7]; + z4 <<= CONST_BITS; + + tmp14 = z1 + z3; + tmp11 = MULTIPLY(z1 + z2, FIX(1.334852607)); /* c3 */ + tmp12 = MULTIPLY(tmp14, FIX(1.197448846)); /* c5 */ + tmp10 = tmp11 + tmp12 + z4 - MULTIPLY(z1, FIX(1.126980169)); /* c3+c5-c1 */ + tmp14 = MULTIPLY(tmp14, FIX(0.752406978)); /* c9 */ + tmp16 = tmp14 - MULTIPLY(z1, FIX(1.061150426)); /* c9+c11-c13 */ + z1 -= z2; + tmp15 = MULTIPLY(z1, FIX(0.467085129)) - z4; /* c11 */ + tmp16 += tmp15; + tmp13 = MULTIPLY(z2 + z3, - FIX(0.158341681)) - z4; /* -c13 */ + tmp11 += tmp13 - MULTIPLY(z2, FIX(0.424103948)); /* c3-c9-c13 */ + tmp12 += tmp13 - MULTIPLY(z3, FIX(2.373959773)); /* c3+c5-c13 */ + tmp13 = MULTIPLY(z3 - z2, FIX(1.405321284)); /* c1 */ + tmp14 += tmp13 + z4 - MULTIPLY(z3, FIX(1.6906431334)); /* c1+c9-c11 */ + tmp15 += tmp13 + MULTIPLY(z2, FIX(0.674957567)); /* c1+c11-c5 */ + + tmp13 = ((z1 - z3) << CONST_BITS) + z4; + + /* Final output stage */ + + outptr[0] = range_limit[(int) RIGHT_SHIFT(tmp20 + tmp10, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[13] = range_limit[(int) RIGHT_SHIFT(tmp20 - tmp10, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[1] = range_limit[(int) RIGHT_SHIFT(tmp21 + tmp11, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[12] = range_limit[(int) RIGHT_SHIFT(tmp21 - tmp11, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[2] = range_limit[(int) RIGHT_SHIFT(tmp22 + tmp12, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[11] = range_limit[(int) RIGHT_SHIFT(tmp22 - tmp12, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[3] = range_limit[(int) RIGHT_SHIFT(tmp23 + tmp13, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[10] = range_limit[(int) RIGHT_SHIFT(tmp23 - tmp13, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[4] = range_limit[(int) RIGHT_SHIFT(tmp24 + tmp14, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[9] = range_limit[(int) RIGHT_SHIFT(tmp24 - tmp14, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[5] = range_limit[(int) RIGHT_SHIFT(tmp25 + tmp15, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[8] = range_limit[(int) RIGHT_SHIFT(tmp25 - tmp15, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[6] = range_limit[(int) RIGHT_SHIFT(tmp26 + tmp16, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[7] = range_limit[(int) RIGHT_SHIFT(tmp26 - tmp16, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + + wsptr += 8; /* advance pointer to next row */ + } +} + + +/* + * Perform dequantization and inverse DCT on one block of coefficients, + * producing a 15x15 output block. + * + * Optimized algorithm with 22 multiplications in the 1-D kernel. + * cK represents sqrt(2) * cos(K*pi/30). + */ + +GLOBAL(void) +jpeg_idct_15x15 (j_decompress_ptr cinfo, jpeg_component_info * compptr, + JCOEFPTR coef_block, + JSAMPARRAY output_buf, JDIMENSION output_col) +{ + INT32 tmp10, tmp11, tmp12, tmp13, tmp14, tmp15, tmp16; + INT32 tmp20, tmp21, tmp22, tmp23, tmp24, tmp25, tmp26, tmp27; + INT32 z1, z2, z3, z4; + JCOEFPTR inptr; + ISLOW_MULT_TYPE * quantptr; + int * wsptr; + JSAMPROW outptr; + JSAMPLE *range_limit = IDCT_range_limit(cinfo); + int ctr; + int workspace[8*15]; /* buffers data between passes */ + SHIFT_TEMPS + + /* Pass 1: process columns from input, store into work array. */ + + inptr = coef_block; + quantptr = (ISLOW_MULT_TYPE *) compptr->dct_table; + wsptr = workspace; + for (ctr = 0; ctr < 8; ctr++, inptr++, quantptr++, wsptr++) { + /* Even part */ + + z1 = DEQUANTIZE(inptr[DCTSIZE*0], quantptr[DCTSIZE*0]); + z1 <<= CONST_BITS; + /* Add fudge factor here for final descale. */ + z1 += ONE << (CONST_BITS-PASS1_BITS-1); + + z2 = DEQUANTIZE(inptr[DCTSIZE*2], quantptr[DCTSIZE*2]); + z3 = DEQUANTIZE(inptr[DCTSIZE*4], quantptr[DCTSIZE*4]); + z4 = DEQUANTIZE(inptr[DCTSIZE*6], quantptr[DCTSIZE*6]); + + tmp10 = MULTIPLY(z4, FIX(0.437016024)); /* c12 */ + tmp11 = MULTIPLY(z4, FIX(1.144122806)); /* c6 */ + + tmp12 = z1 - tmp10; + tmp13 = z1 + tmp11; + z1 -= (tmp11 - tmp10) << 1; /* c0 = (c6-c12)*2 */ + + z4 = z2 - z3; + z3 += z2; + tmp10 = MULTIPLY(z3, FIX(1.337628990)); /* (c2+c4)/2 */ + tmp11 = MULTIPLY(z4, FIX(0.045680613)); /* (c2-c4)/2 */ + z2 = MULTIPLY(z2, FIX(1.439773946)); /* c4+c14 */ + + tmp20 = tmp13 + tmp10 + tmp11; + tmp23 = tmp12 - tmp10 + tmp11 + z2; + + tmp10 = MULTIPLY(z3, FIX(0.547059574)); /* (c8+c14)/2 */ + tmp11 = MULTIPLY(z4, FIX(0.399234004)); /* (c8-c14)/2 */ + + tmp25 = tmp13 - tmp10 - tmp11; + tmp26 = tmp12 + tmp10 - tmp11 - z2; + + tmp10 = MULTIPLY(z3, FIX(0.790569415)); /* (c6+c12)/2 */ + tmp11 = MULTIPLY(z4, FIX(0.353553391)); /* (c6-c12)/2 */ + + tmp21 = tmp12 + tmp10 + tmp11; + tmp24 = tmp13 - tmp10 + tmp11; + tmp11 += tmp11; + tmp22 = z1 + tmp11; /* c10 = c6-c12 */ + tmp27 = z1 - tmp11 - tmp11; /* c0 = (c6-c12)*2 */ + + /* Odd part */ + + z1 = DEQUANTIZE(inptr[DCTSIZE*1], quantptr[DCTSIZE*1]); + z2 = DEQUANTIZE(inptr[DCTSIZE*3], quantptr[DCTSIZE*3]); + z4 = DEQUANTIZE(inptr[DCTSIZE*5], quantptr[DCTSIZE*5]); + z3 = MULTIPLY(z4, FIX(1.224744871)); /* c5 */ + z4 = DEQUANTIZE(inptr[DCTSIZE*7], quantptr[DCTSIZE*7]); + + tmp13 = z2 - z4; + tmp15 = MULTIPLY(z1 + tmp13, FIX(0.831253876)); /* c9 */ + tmp11 = tmp15 + MULTIPLY(z1, FIX(0.513743148)); /* c3-c9 */ + tmp14 = tmp15 - MULTIPLY(tmp13, FIX(2.176250899)); /* c3+c9 */ + + tmp13 = MULTIPLY(z2, - FIX(0.831253876)); /* -c9 */ + tmp15 = MULTIPLY(z2, - FIX(1.344997024)); /* -c3 */ + z2 = z1 - z4; + tmp12 = z3 + MULTIPLY(z2, FIX(1.406466353)); /* c1 */ + + tmp10 = tmp12 + MULTIPLY(z4, FIX(2.457431844)) - tmp15; /* c1+c7 */ + tmp16 = tmp12 - MULTIPLY(z1, FIX(1.112434820)) + tmp13; /* c1-c13 */ + tmp12 = MULTIPLY(z2, FIX(1.224744871)) - z3; /* c5 */ + z2 = MULTIPLY(z1 + z4, FIX(0.575212477)); /* c11 */ + tmp13 += z2 + MULTIPLY(z1, FIX(0.475753014)) - z3; /* c7-c11 */ + tmp15 += z2 - MULTIPLY(z4, FIX(0.869244010)) + z3; /* c11+c13 */ + + /* Final output stage */ + + wsptr[8*0] = (int) RIGHT_SHIFT(tmp20 + tmp10, CONST_BITS-PASS1_BITS); + wsptr[8*14] = (int) RIGHT_SHIFT(tmp20 - tmp10, CONST_BITS-PASS1_BITS); + wsptr[8*1] = (int) RIGHT_SHIFT(tmp21 + tmp11, CONST_BITS-PASS1_BITS); + wsptr[8*13] = (int) RIGHT_SHIFT(tmp21 - tmp11, CONST_BITS-PASS1_BITS); + wsptr[8*2] = (int) RIGHT_SHIFT(tmp22 + tmp12, CONST_BITS-PASS1_BITS); + wsptr[8*12] = (int) RIGHT_SHIFT(tmp22 - tmp12, CONST_BITS-PASS1_BITS); + wsptr[8*3] = (int) RIGHT_SHIFT(tmp23 + tmp13, CONST_BITS-PASS1_BITS); + wsptr[8*11] = (int) RIGHT_SHIFT(tmp23 - tmp13, CONST_BITS-PASS1_BITS); + wsptr[8*4] = (int) RIGHT_SHIFT(tmp24 + tmp14, CONST_BITS-PASS1_BITS); + wsptr[8*10] = (int) RIGHT_SHIFT(tmp24 - tmp14, CONST_BITS-PASS1_BITS); + wsptr[8*5] = (int) RIGHT_SHIFT(tmp25 + tmp15, CONST_BITS-PASS1_BITS); + wsptr[8*9] = (int) RIGHT_SHIFT(tmp25 - tmp15, CONST_BITS-PASS1_BITS); + wsptr[8*6] = (int) RIGHT_SHIFT(tmp26 + tmp16, CONST_BITS-PASS1_BITS); + wsptr[8*8] = (int) RIGHT_SHIFT(tmp26 - tmp16, CONST_BITS-PASS1_BITS); + wsptr[8*7] = (int) RIGHT_SHIFT(tmp27, CONST_BITS-PASS1_BITS); + } + + /* Pass 2: process 15 rows from work array, store into output array. */ + + wsptr = workspace; + for (ctr = 0; ctr < 15; ctr++) { + outptr = output_buf[ctr] + output_col; + + /* Even part */ + + /* Add fudge factor here for final descale. */ + z1 = (INT32) wsptr[0] + (ONE << (PASS1_BITS+2)); + z1 <<= CONST_BITS; + + z2 = (INT32) wsptr[2]; + z3 = (INT32) wsptr[4]; + z4 = (INT32) wsptr[6]; + + tmp10 = MULTIPLY(z4, FIX(0.437016024)); /* c12 */ + tmp11 = MULTIPLY(z4, FIX(1.144122806)); /* c6 */ + + tmp12 = z1 - tmp10; + tmp13 = z1 + tmp11; + z1 -= (tmp11 - tmp10) << 1; /* c0 = (c6-c12)*2 */ + + z4 = z2 - z3; + z3 += z2; + tmp10 = MULTIPLY(z3, FIX(1.337628990)); /* (c2+c4)/2 */ + tmp11 = MULTIPLY(z4, FIX(0.045680613)); /* (c2-c4)/2 */ + z2 = MULTIPLY(z2, FIX(1.439773946)); /* c4+c14 */ + + tmp20 = tmp13 + tmp10 + tmp11; + tmp23 = tmp12 - tmp10 + tmp11 + z2; + + tmp10 = MULTIPLY(z3, FIX(0.547059574)); /* (c8+c14)/2 */ + tmp11 = MULTIPLY(z4, FIX(0.399234004)); /* (c8-c14)/2 */ + + tmp25 = tmp13 - tmp10 - tmp11; + tmp26 = tmp12 + tmp10 - tmp11 - z2; + + tmp10 = MULTIPLY(z3, FIX(0.790569415)); /* (c6+c12)/2 */ + tmp11 = MULTIPLY(z4, FIX(0.353553391)); /* (c6-c12)/2 */ + + tmp21 = tmp12 + tmp10 + tmp11; + tmp24 = tmp13 - tmp10 + tmp11; + tmp11 += tmp11; + tmp22 = z1 + tmp11; /* c10 = c6-c12 */ + tmp27 = z1 - tmp11 - tmp11; /* c0 = (c6-c12)*2 */ + + /* Odd part */ + + z1 = (INT32) wsptr[1]; + z2 = (INT32) wsptr[3]; + z4 = (INT32) wsptr[5]; + z3 = MULTIPLY(z4, FIX(1.224744871)); /* c5 */ + z4 = (INT32) wsptr[7]; + + tmp13 = z2 - z4; + tmp15 = MULTIPLY(z1 + tmp13, FIX(0.831253876)); /* c9 */ + tmp11 = tmp15 + MULTIPLY(z1, FIX(0.513743148)); /* c3-c9 */ + tmp14 = tmp15 - MULTIPLY(tmp13, FIX(2.176250899)); /* c3+c9 */ + + tmp13 = MULTIPLY(z2, - FIX(0.831253876)); /* -c9 */ + tmp15 = MULTIPLY(z2, - FIX(1.344997024)); /* -c3 */ + z2 = z1 - z4; + tmp12 = z3 + MULTIPLY(z2, FIX(1.406466353)); /* c1 */ + + tmp10 = tmp12 + MULTIPLY(z4, FIX(2.457431844)) - tmp15; /* c1+c7 */ + tmp16 = tmp12 - MULTIPLY(z1, FIX(1.112434820)) + tmp13; /* c1-c13 */ + tmp12 = MULTIPLY(z2, FIX(1.224744871)) - z3; /* c5 */ + z2 = MULTIPLY(z1 + z4, FIX(0.575212477)); /* c11 */ + tmp13 += z2 + MULTIPLY(z1, FIX(0.475753014)) - z3; /* c7-c11 */ + tmp15 += z2 - MULTIPLY(z4, FIX(0.869244010)) + z3; /* c11+c13 */ + + /* Final output stage */ + + outptr[0] = range_limit[(int) RIGHT_SHIFT(tmp20 + tmp10, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[14] = range_limit[(int) RIGHT_SHIFT(tmp20 - tmp10, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[1] = range_limit[(int) RIGHT_SHIFT(tmp21 + tmp11, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[13] = range_limit[(int) RIGHT_SHIFT(tmp21 - tmp11, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[2] = range_limit[(int) RIGHT_SHIFT(tmp22 + tmp12, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[12] = range_limit[(int) RIGHT_SHIFT(tmp22 - tmp12, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[3] = range_limit[(int) RIGHT_SHIFT(tmp23 + tmp13, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[11] = range_limit[(int) RIGHT_SHIFT(tmp23 - tmp13, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[4] = range_limit[(int) RIGHT_SHIFT(tmp24 + tmp14, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[10] = range_limit[(int) RIGHT_SHIFT(tmp24 - tmp14, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[5] = range_limit[(int) RIGHT_SHIFT(tmp25 + tmp15, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[9] = range_limit[(int) RIGHT_SHIFT(tmp25 - tmp15, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[6] = range_limit[(int) RIGHT_SHIFT(tmp26 + tmp16, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[8] = range_limit[(int) RIGHT_SHIFT(tmp26 - tmp16, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[7] = range_limit[(int) RIGHT_SHIFT(tmp27, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + + wsptr += 8; /* advance pointer to next row */ + } +} + + +/* + * Perform dequantization and inverse DCT on one block of coefficients, + * producing a 16x16 output block. + * + * Optimized algorithm with 28 multiplications in the 1-D kernel. + * cK represents sqrt(2) * cos(K*pi/32). + */ + +GLOBAL(void) +jpeg_idct_16x16 (j_decompress_ptr cinfo, jpeg_component_info * compptr, + JCOEFPTR coef_block, + JSAMPARRAY output_buf, JDIMENSION output_col) +{ + INT32 tmp0, tmp1, tmp2, tmp3, tmp10, tmp11, tmp12, tmp13; + INT32 tmp20, tmp21, tmp22, tmp23, tmp24, tmp25, tmp26, tmp27; + INT32 z1, z2, z3, z4; + JCOEFPTR inptr; + ISLOW_MULT_TYPE * quantptr; + int * wsptr; + JSAMPROW outptr; + JSAMPLE *range_limit = IDCT_range_limit(cinfo); + int ctr; + int workspace[8*16]; /* buffers data between passes */ + SHIFT_TEMPS + + /* Pass 1: process columns from input, store into work array. */ + + inptr = coef_block; + quantptr = (ISLOW_MULT_TYPE *) compptr->dct_table; + wsptr = workspace; + for (ctr = 0; ctr < 8; ctr++, inptr++, quantptr++, wsptr++) { + /* Even part */ + + tmp0 = DEQUANTIZE(inptr[DCTSIZE*0], quantptr[DCTSIZE*0]); + tmp0 <<= CONST_BITS; + /* Add fudge factor here for final descale. */ + tmp0 += 1 << (CONST_BITS-PASS1_BITS-1); + + z1 = DEQUANTIZE(inptr[DCTSIZE*4], quantptr[DCTSIZE*4]); + tmp1 = MULTIPLY(z1, FIX(1.306562965)); /* c4[16] = c2[8] */ + tmp2 = MULTIPLY(z1, FIX_0_541196100); /* c12[16] = c6[8] */ + + tmp10 = tmp0 + tmp1; + tmp11 = tmp0 - tmp1; + tmp12 = tmp0 + tmp2; + tmp13 = tmp0 - tmp2; + + z1 = DEQUANTIZE(inptr[DCTSIZE*2], quantptr[DCTSIZE*2]); + z2 = DEQUANTIZE(inptr[DCTSIZE*6], quantptr[DCTSIZE*6]); + z3 = z1 - z2; + z4 = MULTIPLY(z3, FIX(0.275899379)); /* c14[16] = c7[8] */ + z3 = MULTIPLY(z3, FIX(1.387039845)); /* c2[16] = c1[8] */ + + tmp0 = z3 + MULTIPLY(z2, FIX_2_562915447); /* (c6+c2)[16] = (c3+c1)[8] */ + tmp1 = z4 + MULTIPLY(z1, FIX_0_899976223); /* (c6-c14)[16] = (c3-c7)[8] */ + tmp2 = z3 - MULTIPLY(z1, FIX(0.601344887)); /* (c2-c10)[16] = (c1-c5)[8] */ + tmp3 = z4 - MULTIPLY(z2, FIX(0.509795579)); /* (c10-c14)[16] = (c5-c7)[8] */ + + tmp20 = tmp10 + tmp0; + tmp27 = tmp10 - tmp0; + tmp21 = tmp12 + tmp1; + tmp26 = tmp12 - tmp1; + tmp22 = tmp13 + tmp2; + tmp25 = tmp13 - tmp2; + tmp23 = tmp11 + tmp3; + tmp24 = tmp11 - tmp3; + + /* Odd part */ + + z1 = DEQUANTIZE(inptr[DCTSIZE*1], quantptr[DCTSIZE*1]); + z2 = DEQUANTIZE(inptr[DCTSIZE*3], quantptr[DCTSIZE*3]); + z3 = DEQUANTIZE(inptr[DCTSIZE*5], quantptr[DCTSIZE*5]); + z4 = DEQUANTIZE(inptr[DCTSIZE*7], quantptr[DCTSIZE*7]); + + tmp11 = z1 + z3; + + tmp1 = MULTIPLY(z1 + z2, FIX(1.353318001)); /* c3 */ + tmp2 = MULTIPLY(tmp11, FIX(1.247225013)); /* c5 */ + tmp3 = MULTIPLY(z1 + z4, FIX(1.093201867)); /* c7 */ + tmp10 = MULTIPLY(z1 - z4, FIX(0.897167586)); /* c9 */ + tmp11 = MULTIPLY(tmp11, FIX(0.666655658)); /* c11 */ + tmp12 = MULTIPLY(z1 - z2, FIX(0.410524528)); /* c13 */ + tmp0 = tmp1 + tmp2 + tmp3 - + MULTIPLY(z1, FIX(2.286341144)); /* c7+c5+c3-c1 */ + tmp13 = tmp10 + tmp11 + tmp12 - + MULTIPLY(z1, FIX(1.835730603)); /* c9+c11+c13-c15 */ + z1 = MULTIPLY(z2 + z3, FIX(0.138617169)); /* c15 */ + tmp1 += z1 + MULTIPLY(z2, FIX(0.071888074)); /* c9+c11-c3-c15 */ + tmp2 += z1 - MULTIPLY(z3, FIX(1.125726048)); /* c5+c7+c15-c3 */ + z1 = MULTIPLY(z3 - z2, FIX(1.407403738)); /* c1 */ + tmp11 += z1 - MULTIPLY(z3, FIX(0.766367282)); /* c1+c11-c9-c13 */ + tmp12 += z1 + MULTIPLY(z2, FIX(1.971951411)); /* c1+c5+c13-c7 */ + z2 += z4; + z1 = MULTIPLY(z2, - FIX(0.666655658)); /* -c11 */ + tmp1 += z1; + tmp3 += z1 + MULTIPLY(z4, FIX(1.065388962)); /* c3+c11+c15-c7 */ + z2 = MULTIPLY(z2, - FIX(1.247225013)); /* -c5 */ + tmp10 += z2 + MULTIPLY(z4, FIX(3.141271809)); /* c1+c5+c9-c13 */ + tmp12 += z2; + z2 = MULTIPLY(z3 + z4, - FIX(1.353318001)); /* -c3 */ + tmp2 += z2; + tmp3 += z2; + z2 = MULTIPLY(z4 - z3, FIX(0.410524528)); /* c13 */ + tmp10 += z2; + tmp11 += z2; + + /* Final output stage */ + + wsptr[8*0] = (int) RIGHT_SHIFT(tmp20 + tmp0, CONST_BITS-PASS1_BITS); + wsptr[8*15] = (int) RIGHT_SHIFT(tmp20 - tmp0, CONST_BITS-PASS1_BITS); + wsptr[8*1] = (int) RIGHT_SHIFT(tmp21 + tmp1, CONST_BITS-PASS1_BITS); + wsptr[8*14] = (int) RIGHT_SHIFT(tmp21 - tmp1, CONST_BITS-PASS1_BITS); + wsptr[8*2] = (int) RIGHT_SHIFT(tmp22 + tmp2, CONST_BITS-PASS1_BITS); + wsptr[8*13] = (int) RIGHT_SHIFT(tmp22 - tmp2, CONST_BITS-PASS1_BITS); + wsptr[8*3] = (int) RIGHT_SHIFT(tmp23 + tmp3, CONST_BITS-PASS1_BITS); + wsptr[8*12] = (int) RIGHT_SHIFT(tmp23 - tmp3, CONST_BITS-PASS1_BITS); + wsptr[8*4] = (int) RIGHT_SHIFT(tmp24 + tmp10, CONST_BITS-PASS1_BITS); + wsptr[8*11] = (int) RIGHT_SHIFT(tmp24 - tmp10, CONST_BITS-PASS1_BITS); + wsptr[8*5] = (int) RIGHT_SHIFT(tmp25 + tmp11, CONST_BITS-PASS1_BITS); + wsptr[8*10] = (int) RIGHT_SHIFT(tmp25 - tmp11, CONST_BITS-PASS1_BITS); + wsptr[8*6] = (int) RIGHT_SHIFT(tmp26 + tmp12, CONST_BITS-PASS1_BITS); + wsptr[8*9] = (int) RIGHT_SHIFT(tmp26 - tmp12, CONST_BITS-PASS1_BITS); + wsptr[8*7] = (int) RIGHT_SHIFT(tmp27 + tmp13, CONST_BITS-PASS1_BITS); + wsptr[8*8] = (int) RIGHT_SHIFT(tmp27 - tmp13, CONST_BITS-PASS1_BITS); + } + + /* Pass 2: process 16 rows from work array, store into output array. */ + + wsptr = workspace; + for (ctr = 0; ctr < 16; ctr++) { + outptr = output_buf[ctr] + output_col; + + /* Even part */ + + /* Add fudge factor here for final descale. */ + tmp0 = (INT32) wsptr[0] + (ONE << (PASS1_BITS+2)); + tmp0 <<= CONST_BITS; + + z1 = (INT32) wsptr[4]; + tmp1 = MULTIPLY(z1, FIX(1.306562965)); /* c4[16] = c2[8] */ + tmp2 = MULTIPLY(z1, FIX_0_541196100); /* c12[16] = c6[8] */ + + tmp10 = tmp0 + tmp1; + tmp11 = tmp0 - tmp1; + tmp12 = tmp0 + tmp2; + tmp13 = tmp0 - tmp2; + + z1 = (INT32) wsptr[2]; + z2 = (INT32) wsptr[6]; + z3 = z1 - z2; + z4 = MULTIPLY(z3, FIX(0.275899379)); /* c14[16] = c7[8] */ + z3 = MULTIPLY(z3, FIX(1.387039845)); /* c2[16] = c1[8] */ + + tmp0 = z3 + MULTIPLY(z2, FIX_2_562915447); /* (c6+c2)[16] = (c3+c1)[8] */ + tmp1 = z4 + MULTIPLY(z1, FIX_0_899976223); /* (c6-c14)[16] = (c3-c7)[8] */ + tmp2 = z3 - MULTIPLY(z1, FIX(0.601344887)); /* (c2-c10)[16] = (c1-c5)[8] */ + tmp3 = z4 - MULTIPLY(z2, FIX(0.509795579)); /* (c10-c14)[16] = (c5-c7)[8] */ + + tmp20 = tmp10 + tmp0; + tmp27 = tmp10 - tmp0; + tmp21 = tmp12 + tmp1; + tmp26 = tmp12 - tmp1; + tmp22 = tmp13 + tmp2; + tmp25 = tmp13 - tmp2; + tmp23 = tmp11 + tmp3; + tmp24 = tmp11 - tmp3; + + /* Odd part */ + + z1 = (INT32) wsptr[1]; + z2 = (INT32) wsptr[3]; + z3 = (INT32) wsptr[5]; + z4 = (INT32) wsptr[7]; + + tmp11 = z1 + z3; + + tmp1 = MULTIPLY(z1 + z2, FIX(1.353318001)); /* c3 */ + tmp2 = MULTIPLY(tmp11, FIX(1.247225013)); /* c5 */ + tmp3 = MULTIPLY(z1 + z4, FIX(1.093201867)); /* c7 */ + tmp10 = MULTIPLY(z1 - z4, FIX(0.897167586)); /* c9 */ + tmp11 = MULTIPLY(tmp11, FIX(0.666655658)); /* c11 */ + tmp12 = MULTIPLY(z1 - z2, FIX(0.410524528)); /* c13 */ + tmp0 = tmp1 + tmp2 + tmp3 - + MULTIPLY(z1, FIX(2.286341144)); /* c7+c5+c3-c1 */ + tmp13 = tmp10 + tmp11 + tmp12 - + MULTIPLY(z1, FIX(1.835730603)); /* c9+c11+c13-c15 */ + z1 = MULTIPLY(z2 + z3, FIX(0.138617169)); /* c15 */ + tmp1 += z1 + MULTIPLY(z2, FIX(0.071888074)); /* c9+c11-c3-c15 */ + tmp2 += z1 - MULTIPLY(z3, FIX(1.125726048)); /* c5+c7+c15-c3 */ + z1 = MULTIPLY(z3 - z2, FIX(1.407403738)); /* c1 */ + tmp11 += z1 - MULTIPLY(z3, FIX(0.766367282)); /* c1+c11-c9-c13 */ + tmp12 += z1 + MULTIPLY(z2, FIX(1.971951411)); /* c1+c5+c13-c7 */ + z2 += z4; + z1 = MULTIPLY(z2, - FIX(0.666655658)); /* -c11 */ + tmp1 += z1; + tmp3 += z1 + MULTIPLY(z4, FIX(1.065388962)); /* c3+c11+c15-c7 */ + z2 = MULTIPLY(z2, - FIX(1.247225013)); /* -c5 */ + tmp10 += z2 + MULTIPLY(z4, FIX(3.141271809)); /* c1+c5+c9-c13 */ + tmp12 += z2; + z2 = MULTIPLY(z3 + z4, - FIX(1.353318001)); /* -c3 */ + tmp2 += z2; + tmp3 += z2; + z2 = MULTIPLY(z4 - z3, FIX(0.410524528)); /* c13 */ + tmp10 += z2; + tmp11 += z2; + + /* Final output stage */ + + outptr[0] = range_limit[(int) RIGHT_SHIFT(tmp20 + tmp0, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[15] = range_limit[(int) RIGHT_SHIFT(tmp20 - tmp0, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[1] = range_limit[(int) RIGHT_SHIFT(tmp21 + tmp1, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[14] = range_limit[(int) RIGHT_SHIFT(tmp21 - tmp1, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[2] = range_limit[(int) RIGHT_SHIFT(tmp22 + tmp2, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[13] = range_limit[(int) RIGHT_SHIFT(tmp22 - tmp2, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[3] = range_limit[(int) RIGHT_SHIFT(tmp23 + tmp3, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[12] = range_limit[(int) RIGHT_SHIFT(tmp23 - tmp3, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[4] = range_limit[(int) RIGHT_SHIFT(tmp24 + tmp10, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[11] = range_limit[(int) RIGHT_SHIFT(tmp24 - tmp10, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[5] = range_limit[(int) RIGHT_SHIFT(tmp25 + tmp11, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[10] = range_limit[(int) RIGHT_SHIFT(tmp25 - tmp11, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[6] = range_limit[(int) RIGHT_SHIFT(tmp26 + tmp12, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[9] = range_limit[(int) RIGHT_SHIFT(tmp26 - tmp12, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[7] = range_limit[(int) RIGHT_SHIFT(tmp27 + tmp13, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[8] = range_limit[(int) RIGHT_SHIFT(tmp27 - tmp13, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + + wsptr += 8; /* advance pointer to next row */ + } +} + + +/* + * Perform dequantization and inverse DCT on one block of coefficients, + * producing a 16x8 output block. + * + * 8-point IDCT in pass 1 (columns), 16-point in pass 2 (rows). + */ + +GLOBAL(void) +jpeg_idct_16x8 (j_decompress_ptr cinfo, jpeg_component_info * compptr, + JCOEFPTR coef_block, + JSAMPARRAY output_buf, JDIMENSION output_col) +{ + INT32 tmp0, tmp1, tmp2, tmp3, tmp10, tmp11, tmp12, tmp13; + INT32 tmp20, tmp21, tmp22, tmp23, tmp24, tmp25, tmp26, tmp27; + INT32 z1, z2, z3, z4; + JCOEFPTR inptr; + ISLOW_MULT_TYPE * quantptr; + int * wsptr; + JSAMPROW outptr; + JSAMPLE *range_limit = IDCT_range_limit(cinfo); + int ctr; + int workspace[8*8]; /* buffers data between passes */ + SHIFT_TEMPS + + /* Pass 1: process columns from input, store into work array. */ + /* Note results are scaled up by sqrt(8) compared to a true IDCT; */ + /* furthermore, we scale the results by 2**PASS1_BITS. */ + + inptr = coef_block; + quantptr = (ISLOW_MULT_TYPE *) compptr->dct_table; + wsptr = workspace; + for (ctr = DCTSIZE; ctr > 0; ctr--) { + /* Due to quantization, we will usually find that many of the input + * coefficients are zero, especially the AC terms. We can exploit this + * by short-circuiting the IDCT calculation for any column in which all + * the AC terms are zero. In that case each output is equal to the + * DC coefficient (with scale factor as needed). + * With typical images and quantization tables, half or more of the + * column DCT calculations can be simplified this way. + */ + + if (inptr[DCTSIZE*1] == 0 && inptr[DCTSIZE*2] == 0 && + inptr[DCTSIZE*3] == 0 && inptr[DCTSIZE*4] == 0 && + inptr[DCTSIZE*5] == 0 && inptr[DCTSIZE*6] == 0 && + inptr[DCTSIZE*7] == 0) { + /* AC terms all zero */ + int dcval = DEQUANTIZE(inptr[DCTSIZE*0], quantptr[DCTSIZE*0]) << PASS1_BITS; + + wsptr[DCTSIZE*0] = dcval; + wsptr[DCTSIZE*1] = dcval; + wsptr[DCTSIZE*2] = dcval; + wsptr[DCTSIZE*3] = dcval; + wsptr[DCTSIZE*4] = dcval; + wsptr[DCTSIZE*5] = dcval; + wsptr[DCTSIZE*6] = dcval; + wsptr[DCTSIZE*7] = dcval; + + inptr++; /* advance pointers to next column */ + quantptr++; + wsptr++; + continue; + } + + /* Even part: reverse the even part of the forward DCT. */ + /* The rotator is sqrt(2)*c(-6). */ + + z2 = DEQUANTIZE(inptr[DCTSIZE*2], quantptr[DCTSIZE*2]); + z3 = DEQUANTIZE(inptr[DCTSIZE*6], quantptr[DCTSIZE*6]); + + z1 = MULTIPLY(z2 + z3, FIX_0_541196100); + tmp2 = z1 + MULTIPLY(z2, FIX_0_765366865); + tmp3 = z1 - MULTIPLY(z3, FIX_1_847759065); + + z2 = DEQUANTIZE(inptr[DCTSIZE*0], quantptr[DCTSIZE*0]); + z3 = DEQUANTIZE(inptr[DCTSIZE*4], quantptr[DCTSIZE*4]); + z2 <<= CONST_BITS; + z3 <<= CONST_BITS; + /* Add fudge factor here for final descale. */ + z2 += ONE << (CONST_BITS-PASS1_BITS-1); + + tmp0 = z2 + z3; + tmp1 = z2 - z3; + + tmp10 = tmp0 + tmp2; + tmp13 = tmp0 - tmp2; + tmp11 = tmp1 + tmp3; + tmp12 = tmp1 - tmp3; + + /* Odd part per figure 8; the matrix is unitary and hence its + * transpose is its inverse. i0..i3 are y7,y5,y3,y1 respectively. + */ + + tmp0 = DEQUANTIZE(inptr[DCTSIZE*7], quantptr[DCTSIZE*7]); + tmp1 = DEQUANTIZE(inptr[DCTSIZE*5], quantptr[DCTSIZE*5]); + tmp2 = DEQUANTIZE(inptr[DCTSIZE*3], quantptr[DCTSIZE*3]); + tmp3 = DEQUANTIZE(inptr[DCTSIZE*1], quantptr[DCTSIZE*1]); + + z2 = tmp0 + tmp2; + z3 = tmp1 + tmp3; + + z1 = MULTIPLY(z2 + z3, FIX_1_175875602); /* sqrt(2) * c3 */ + z2 = MULTIPLY(z2, - FIX_1_961570560); /* sqrt(2) * (-c3-c5) */ + z3 = MULTIPLY(z3, - FIX_0_390180644); /* sqrt(2) * (c5-c3) */ + z2 += z1; + z3 += z1; + + z1 = MULTIPLY(tmp0 + tmp3, - FIX_0_899976223); /* sqrt(2) * (c7-c3) */ + tmp0 = MULTIPLY(tmp0, FIX_0_298631336); /* sqrt(2) * (-c1+c3+c5-c7) */ + tmp3 = MULTIPLY(tmp3, FIX_1_501321110); /* sqrt(2) * ( c1+c3-c5-c7) */ + tmp0 += z1 + z2; + tmp3 += z1 + z3; + + z1 = MULTIPLY(tmp1 + tmp2, - FIX_2_562915447); /* sqrt(2) * (-c1-c3) */ + tmp1 = MULTIPLY(tmp1, FIX_2_053119869); /* sqrt(2) * ( c1+c3-c5+c7) */ + tmp2 = MULTIPLY(tmp2, FIX_3_072711026); /* sqrt(2) * ( c1+c3+c5-c7) */ + tmp1 += z1 + z3; + tmp2 += z1 + z2; + + /* Final output stage: inputs are tmp10..tmp13, tmp0..tmp3 */ + + wsptr[DCTSIZE*0] = (int) RIGHT_SHIFT(tmp10 + tmp3, CONST_BITS-PASS1_BITS); + wsptr[DCTSIZE*7] = (int) RIGHT_SHIFT(tmp10 - tmp3, CONST_BITS-PASS1_BITS); + wsptr[DCTSIZE*1] = (int) RIGHT_SHIFT(tmp11 + tmp2, CONST_BITS-PASS1_BITS); + wsptr[DCTSIZE*6] = (int) RIGHT_SHIFT(tmp11 - tmp2, CONST_BITS-PASS1_BITS); + wsptr[DCTSIZE*2] = (int) RIGHT_SHIFT(tmp12 + tmp1, CONST_BITS-PASS1_BITS); + wsptr[DCTSIZE*5] = (int) RIGHT_SHIFT(tmp12 - tmp1, CONST_BITS-PASS1_BITS); + wsptr[DCTSIZE*3] = (int) RIGHT_SHIFT(tmp13 + tmp0, CONST_BITS-PASS1_BITS); + wsptr[DCTSIZE*4] = (int) RIGHT_SHIFT(tmp13 - tmp0, CONST_BITS-PASS1_BITS); + + inptr++; /* advance pointers to next column */ + quantptr++; + wsptr++; + } + + /* Pass 2: process 8 rows from work array, store into output array. + * 16-point IDCT kernel, cK represents sqrt(2) * cos(K*pi/32). + */ + wsptr = workspace; + for (ctr = 0; ctr < 8; ctr++) { + outptr = output_buf[ctr] + output_col; + + /* Even part */ + + /* Add fudge factor here for final descale. */ + tmp0 = (INT32) wsptr[0] + (ONE << (PASS1_BITS+2)); + tmp0 <<= CONST_BITS; + + z1 = (INT32) wsptr[4]; + tmp1 = MULTIPLY(z1, FIX(1.306562965)); /* c4[16] = c2[8] */ + tmp2 = MULTIPLY(z1, FIX_0_541196100); /* c12[16] = c6[8] */ + + tmp10 = tmp0 + tmp1; + tmp11 = tmp0 - tmp1; + tmp12 = tmp0 + tmp2; + tmp13 = tmp0 - tmp2; + + z1 = (INT32) wsptr[2]; + z2 = (INT32) wsptr[6]; + z3 = z1 - z2; + z4 = MULTIPLY(z3, FIX(0.275899379)); /* c14[16] = c7[8] */ + z3 = MULTIPLY(z3, FIX(1.387039845)); /* c2[16] = c1[8] */ + + tmp0 = z3 + MULTIPLY(z2, FIX_2_562915447); /* (c6+c2)[16] = (c3+c1)[8] */ + tmp1 = z4 + MULTIPLY(z1, FIX_0_899976223); /* (c6-c14)[16] = (c3-c7)[8] */ + tmp2 = z3 - MULTIPLY(z1, FIX(0.601344887)); /* (c2-c10)[16] = (c1-c5)[8] */ + tmp3 = z4 - MULTIPLY(z2, FIX(0.509795579)); /* (c10-c14)[16] = (c5-c7)[8] */ + + tmp20 = tmp10 + tmp0; + tmp27 = tmp10 - tmp0; + tmp21 = tmp12 + tmp1; + tmp26 = tmp12 - tmp1; + tmp22 = tmp13 + tmp2; + tmp25 = tmp13 - tmp2; + tmp23 = tmp11 + tmp3; + tmp24 = tmp11 - tmp3; + + /* Odd part */ + + z1 = (INT32) wsptr[1]; + z2 = (INT32) wsptr[3]; + z3 = (INT32) wsptr[5]; + z4 = (INT32) wsptr[7]; + + tmp11 = z1 + z3; + + tmp1 = MULTIPLY(z1 + z2, FIX(1.353318001)); /* c3 */ + tmp2 = MULTIPLY(tmp11, FIX(1.247225013)); /* c5 */ + tmp3 = MULTIPLY(z1 + z4, FIX(1.093201867)); /* c7 */ + tmp10 = MULTIPLY(z1 - z4, FIX(0.897167586)); /* c9 */ + tmp11 = MULTIPLY(tmp11, FIX(0.666655658)); /* c11 */ + tmp12 = MULTIPLY(z1 - z2, FIX(0.410524528)); /* c13 */ + tmp0 = tmp1 + tmp2 + tmp3 - + MULTIPLY(z1, FIX(2.286341144)); /* c7+c5+c3-c1 */ + tmp13 = tmp10 + tmp11 + tmp12 - + MULTIPLY(z1, FIX(1.835730603)); /* c9+c11+c13-c15 */ + z1 = MULTIPLY(z2 + z3, FIX(0.138617169)); /* c15 */ + tmp1 += z1 + MULTIPLY(z2, FIX(0.071888074)); /* c9+c11-c3-c15 */ + tmp2 += z1 - MULTIPLY(z3, FIX(1.125726048)); /* c5+c7+c15-c3 */ + z1 = MULTIPLY(z3 - z2, FIX(1.407403738)); /* c1 */ + tmp11 += z1 - MULTIPLY(z3, FIX(0.766367282)); /* c1+c11-c9-c13 */ + tmp12 += z1 + MULTIPLY(z2, FIX(1.971951411)); /* c1+c5+c13-c7 */ + z2 += z4; + z1 = MULTIPLY(z2, - FIX(0.666655658)); /* -c11 */ + tmp1 += z1; + tmp3 += z1 + MULTIPLY(z4, FIX(1.065388962)); /* c3+c11+c15-c7 */ + z2 = MULTIPLY(z2, - FIX(1.247225013)); /* -c5 */ + tmp10 += z2 + MULTIPLY(z4, FIX(3.141271809)); /* c1+c5+c9-c13 */ + tmp12 += z2; + z2 = MULTIPLY(z3 + z4, - FIX(1.353318001)); /* -c3 */ + tmp2 += z2; + tmp3 += z2; + z2 = MULTIPLY(z4 - z3, FIX(0.410524528)); /* c13 */ + tmp10 += z2; + tmp11 += z2; + + /* Final output stage */ + + outptr[0] = range_limit[(int) RIGHT_SHIFT(tmp20 + tmp0, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[15] = range_limit[(int) RIGHT_SHIFT(tmp20 - tmp0, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[1] = range_limit[(int) RIGHT_SHIFT(tmp21 + tmp1, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[14] = range_limit[(int) RIGHT_SHIFT(tmp21 - tmp1, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[2] = range_limit[(int) RIGHT_SHIFT(tmp22 + tmp2, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[13] = range_limit[(int) RIGHT_SHIFT(tmp22 - tmp2, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[3] = range_limit[(int) RIGHT_SHIFT(tmp23 + tmp3, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[12] = range_limit[(int) RIGHT_SHIFT(tmp23 - tmp3, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[4] = range_limit[(int) RIGHT_SHIFT(tmp24 + tmp10, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[11] = range_limit[(int) RIGHT_SHIFT(tmp24 - tmp10, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[5] = range_limit[(int) RIGHT_SHIFT(tmp25 + tmp11, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[10] = range_limit[(int) RIGHT_SHIFT(tmp25 - tmp11, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[6] = range_limit[(int) RIGHT_SHIFT(tmp26 + tmp12, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[9] = range_limit[(int) RIGHT_SHIFT(tmp26 - tmp12, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[7] = range_limit[(int) RIGHT_SHIFT(tmp27 + tmp13, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[8] = range_limit[(int) RIGHT_SHIFT(tmp27 - tmp13, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + + wsptr += 8; /* advance pointer to next row */ + } +} + + +/* + * Perform dequantization and inverse DCT on one block of coefficients, + * producing a 14x7 output block. + * + * 7-point IDCT in pass 1 (columns), 14-point in pass 2 (rows). + */ + +GLOBAL(void) +jpeg_idct_14x7 (j_decompress_ptr cinfo, jpeg_component_info * compptr, + JCOEFPTR coef_block, + JSAMPARRAY output_buf, JDIMENSION output_col) +{ + INT32 tmp10, tmp11, tmp12, tmp13, tmp14, tmp15, tmp16; + INT32 tmp20, tmp21, tmp22, tmp23, tmp24, tmp25, tmp26; + INT32 z1, z2, z3, z4; + JCOEFPTR inptr; + ISLOW_MULT_TYPE * quantptr; + int * wsptr; + JSAMPROW outptr; + JSAMPLE *range_limit = IDCT_range_limit(cinfo); + int ctr; + int workspace[8*7]; /* buffers data between passes */ + SHIFT_TEMPS + + /* Pass 1: process columns from input, store into work array. + * 7-point IDCT kernel, cK represents sqrt(2) * cos(K*pi/14). + */ + inptr = coef_block; + quantptr = (ISLOW_MULT_TYPE *) compptr->dct_table; + wsptr = workspace; + for (ctr = 0; ctr < 8; ctr++, inptr++, quantptr++, wsptr++) { + /* Even part */ + + tmp23 = DEQUANTIZE(inptr[DCTSIZE*0], quantptr[DCTSIZE*0]); + tmp23 <<= CONST_BITS; + /* Add fudge factor here for final descale. */ + tmp23 += ONE << (CONST_BITS-PASS1_BITS-1); + + z1 = DEQUANTIZE(inptr[DCTSIZE*2], quantptr[DCTSIZE*2]); + z2 = DEQUANTIZE(inptr[DCTSIZE*4], quantptr[DCTSIZE*4]); + z3 = DEQUANTIZE(inptr[DCTSIZE*6], quantptr[DCTSIZE*6]); + + tmp20 = MULTIPLY(z2 - z3, FIX(0.881747734)); /* c4 */ + tmp22 = MULTIPLY(z1 - z2, FIX(0.314692123)); /* c6 */ + tmp21 = tmp20 + tmp22 + tmp23 - MULTIPLY(z2, FIX(1.841218003)); /* c2+c4-c6 */ + tmp10 = z1 + z3; + z2 -= tmp10; + tmp10 = MULTIPLY(tmp10, FIX(1.274162392)) + tmp23; /* c2 */ + tmp20 += tmp10 - MULTIPLY(z3, FIX(0.077722536)); /* c2-c4-c6 */ + tmp22 += tmp10 - MULTIPLY(z1, FIX(2.470602249)); /* c2+c4+c6 */ + tmp23 += MULTIPLY(z2, FIX(1.414213562)); /* c0 */ + + /* Odd part */ + + z1 = DEQUANTIZE(inptr[DCTSIZE*1], quantptr[DCTSIZE*1]); + z2 = DEQUANTIZE(inptr[DCTSIZE*3], quantptr[DCTSIZE*3]); + z3 = DEQUANTIZE(inptr[DCTSIZE*5], quantptr[DCTSIZE*5]); + + tmp11 = MULTIPLY(z1 + z2, FIX(0.935414347)); /* (c3+c1-c5)/2 */ + tmp12 = MULTIPLY(z1 - z2, FIX(0.170262339)); /* (c3+c5-c1)/2 */ + tmp10 = tmp11 - tmp12; + tmp11 += tmp12; + tmp12 = MULTIPLY(z2 + z3, - FIX(1.378756276)); /* -c1 */ + tmp11 += tmp12; + z2 = MULTIPLY(z1 + z3, FIX(0.613604268)); /* c5 */ + tmp10 += z2; + tmp12 += z2 + MULTIPLY(z3, FIX(1.870828693)); /* c3+c1-c5 */ + + /* Final output stage */ + + wsptr[8*0] = (int) RIGHT_SHIFT(tmp20 + tmp10, CONST_BITS-PASS1_BITS); + wsptr[8*6] = (int) RIGHT_SHIFT(tmp20 - tmp10, CONST_BITS-PASS1_BITS); + wsptr[8*1] = (int) RIGHT_SHIFT(tmp21 + tmp11, CONST_BITS-PASS1_BITS); + wsptr[8*5] = (int) RIGHT_SHIFT(tmp21 - tmp11, CONST_BITS-PASS1_BITS); + wsptr[8*2] = (int) RIGHT_SHIFT(tmp22 + tmp12, CONST_BITS-PASS1_BITS); + wsptr[8*4] = (int) RIGHT_SHIFT(tmp22 - tmp12, CONST_BITS-PASS1_BITS); + wsptr[8*3] = (int) RIGHT_SHIFT(tmp23, CONST_BITS-PASS1_BITS); + } + + /* Pass 2: process 7 rows from work array, store into output array. + * 14-point IDCT kernel, cK represents sqrt(2) * cos(K*pi/28). + */ + wsptr = workspace; + for (ctr = 0; ctr < 7; ctr++) { + outptr = output_buf[ctr] + output_col; + + /* Even part */ + + /* Add fudge factor here for final descale. */ + z1 = (INT32) wsptr[0] + (ONE << (PASS1_BITS+2)); + z1 <<= CONST_BITS; + z4 = (INT32) wsptr[4]; + z2 = MULTIPLY(z4, FIX(1.274162392)); /* c4 */ + z3 = MULTIPLY(z4, FIX(0.314692123)); /* c12 */ + z4 = MULTIPLY(z4, FIX(0.881747734)); /* c8 */ + + tmp10 = z1 + z2; + tmp11 = z1 + z3; + tmp12 = z1 - z4; + + tmp23 = z1 - ((z2 + z3 - z4) << 1); /* c0 = (c4+c12-c8)*2 */ + + z1 = (INT32) wsptr[2]; + z2 = (INT32) wsptr[6]; + + z3 = MULTIPLY(z1 + z2, FIX(1.105676686)); /* c6 */ + + tmp13 = z3 + MULTIPLY(z1, FIX(0.273079590)); /* c2-c6 */ + tmp14 = z3 - MULTIPLY(z2, FIX(1.719280954)); /* c6+c10 */ + tmp15 = MULTIPLY(z1, FIX(0.613604268)) - /* c10 */ + MULTIPLY(z2, FIX(1.378756276)); /* c2 */ + + tmp20 = tmp10 + tmp13; + tmp26 = tmp10 - tmp13; + tmp21 = tmp11 + tmp14; + tmp25 = tmp11 - tmp14; + tmp22 = tmp12 + tmp15; + tmp24 = tmp12 - tmp15; + + /* Odd part */ + + z1 = (INT32) wsptr[1]; + z2 = (INT32) wsptr[3]; + z3 = (INT32) wsptr[5]; + z4 = (INT32) wsptr[7]; + z4 <<= CONST_BITS; + + tmp14 = z1 + z3; + tmp11 = MULTIPLY(z1 + z2, FIX(1.334852607)); /* c3 */ + tmp12 = MULTIPLY(tmp14, FIX(1.197448846)); /* c5 */ + tmp10 = tmp11 + tmp12 + z4 - MULTIPLY(z1, FIX(1.126980169)); /* c3+c5-c1 */ + tmp14 = MULTIPLY(tmp14, FIX(0.752406978)); /* c9 */ + tmp16 = tmp14 - MULTIPLY(z1, FIX(1.061150426)); /* c9+c11-c13 */ + z1 -= z2; + tmp15 = MULTIPLY(z1, FIX(0.467085129)) - z4; /* c11 */ + tmp16 += tmp15; + tmp13 = MULTIPLY(z2 + z3, - FIX(0.158341681)) - z4; /* -c13 */ + tmp11 += tmp13 - MULTIPLY(z2, FIX(0.424103948)); /* c3-c9-c13 */ + tmp12 += tmp13 - MULTIPLY(z3, FIX(2.373959773)); /* c3+c5-c13 */ + tmp13 = MULTIPLY(z3 - z2, FIX(1.405321284)); /* c1 */ + tmp14 += tmp13 + z4 - MULTIPLY(z3, FIX(1.6906431334)); /* c1+c9-c11 */ + tmp15 += tmp13 + MULTIPLY(z2, FIX(0.674957567)); /* c1+c11-c5 */ + + tmp13 = ((z1 - z3) << CONST_BITS) + z4; + + /* Final output stage */ + + outptr[0] = range_limit[(int) RIGHT_SHIFT(tmp20 + tmp10, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[13] = range_limit[(int) RIGHT_SHIFT(tmp20 - tmp10, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[1] = range_limit[(int) RIGHT_SHIFT(tmp21 + tmp11, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[12] = range_limit[(int) RIGHT_SHIFT(tmp21 - tmp11, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[2] = range_limit[(int) RIGHT_SHIFT(tmp22 + tmp12, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[11] = range_limit[(int) RIGHT_SHIFT(tmp22 - tmp12, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[3] = range_limit[(int) RIGHT_SHIFT(tmp23 + tmp13, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[10] = range_limit[(int) RIGHT_SHIFT(tmp23 - tmp13, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[4] = range_limit[(int) RIGHT_SHIFT(tmp24 + tmp14, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[9] = range_limit[(int) RIGHT_SHIFT(tmp24 - tmp14, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[5] = range_limit[(int) RIGHT_SHIFT(tmp25 + tmp15, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[8] = range_limit[(int) RIGHT_SHIFT(tmp25 - tmp15, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[6] = range_limit[(int) RIGHT_SHIFT(tmp26 + tmp16, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[7] = range_limit[(int) RIGHT_SHIFT(tmp26 - tmp16, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + + wsptr += 8; /* advance pointer to next row */ + } +} + + +/* + * Perform dequantization and inverse DCT on one block of coefficients, + * producing a 12x6 output block. + * + * 6-point IDCT in pass 1 (columns), 12-point in pass 2 (rows). + */ + +GLOBAL(void) +jpeg_idct_12x6 (j_decompress_ptr cinfo, jpeg_component_info * compptr, + JCOEFPTR coef_block, + JSAMPARRAY output_buf, JDIMENSION output_col) +{ + INT32 tmp10, tmp11, tmp12, tmp13, tmp14, tmp15; + INT32 tmp20, tmp21, tmp22, tmp23, tmp24, tmp25; + INT32 z1, z2, z3, z4; + JCOEFPTR inptr; + ISLOW_MULT_TYPE * quantptr; + int * wsptr; + JSAMPROW outptr; + JSAMPLE *range_limit = IDCT_range_limit(cinfo); + int ctr; + int workspace[8*6]; /* buffers data between passes */ + SHIFT_TEMPS + + /* Pass 1: process columns from input, store into work array. + * 6-point IDCT kernel, cK represents sqrt(2) * cos(K*pi/12). + */ + inptr = coef_block; + quantptr = (ISLOW_MULT_TYPE *) compptr->dct_table; + wsptr = workspace; + for (ctr = 0; ctr < 8; ctr++, inptr++, quantptr++, wsptr++) { + /* Even part */ + + tmp10 = DEQUANTIZE(inptr[DCTSIZE*0], quantptr[DCTSIZE*0]); + tmp10 <<= CONST_BITS; + /* Add fudge factor here for final descale. */ + tmp10 += ONE << (CONST_BITS-PASS1_BITS-1); + tmp12 = DEQUANTIZE(inptr[DCTSIZE*4], quantptr[DCTSIZE*4]); + tmp20 = MULTIPLY(tmp12, FIX(0.707106781)); /* c4 */ + tmp11 = tmp10 + tmp20; + tmp21 = RIGHT_SHIFT(tmp10 - tmp20 - tmp20, CONST_BITS-PASS1_BITS); + tmp20 = DEQUANTIZE(inptr[DCTSIZE*2], quantptr[DCTSIZE*2]); + tmp10 = MULTIPLY(tmp20, FIX(1.224744871)); /* c2 */ + tmp20 = tmp11 + tmp10; + tmp22 = tmp11 - tmp10; + + /* Odd part */ + + z1 = DEQUANTIZE(inptr[DCTSIZE*1], quantptr[DCTSIZE*1]); + z2 = DEQUANTIZE(inptr[DCTSIZE*3], quantptr[DCTSIZE*3]); + z3 = DEQUANTIZE(inptr[DCTSIZE*5], quantptr[DCTSIZE*5]); + tmp11 = MULTIPLY(z1 + z3, FIX(0.366025404)); /* c5 */ + tmp10 = tmp11 + ((z1 + z2) << CONST_BITS); + tmp12 = tmp11 + ((z3 - z2) << CONST_BITS); + tmp11 = (z1 - z2 - z3) << PASS1_BITS; + + /* Final output stage */ + + wsptr[8*0] = (int) RIGHT_SHIFT(tmp20 + tmp10, CONST_BITS-PASS1_BITS); + wsptr[8*5] = (int) RIGHT_SHIFT(tmp20 - tmp10, CONST_BITS-PASS1_BITS); + wsptr[8*1] = (int) (tmp21 + tmp11); + wsptr[8*4] = (int) (tmp21 - tmp11); + wsptr[8*2] = (int) RIGHT_SHIFT(tmp22 + tmp12, CONST_BITS-PASS1_BITS); + wsptr[8*3] = (int) RIGHT_SHIFT(tmp22 - tmp12, CONST_BITS-PASS1_BITS); + } + + /* Pass 2: process 6 rows from work array, store into output array. + * 12-point IDCT kernel, cK represents sqrt(2) * cos(K*pi/24). + */ + wsptr = workspace; + for (ctr = 0; ctr < 6; ctr++) { + outptr = output_buf[ctr] + output_col; + + /* Even part */ + + /* Add fudge factor here for final descale. */ + z3 = (INT32) wsptr[0] + (ONE << (PASS1_BITS+2)); + z3 <<= CONST_BITS; + + z4 = (INT32) wsptr[4]; + z4 = MULTIPLY(z4, FIX(1.224744871)); /* c4 */ + + tmp10 = z3 + z4; + tmp11 = z3 - z4; + + z1 = (INT32) wsptr[2]; + z4 = MULTIPLY(z1, FIX(1.366025404)); /* c2 */ + z1 <<= CONST_BITS; + z2 = (INT32) wsptr[6]; + z2 <<= CONST_BITS; + + tmp12 = z1 - z2; + + tmp21 = z3 + tmp12; + tmp24 = z3 - tmp12; + + tmp12 = z4 + z2; + + tmp20 = tmp10 + tmp12; + tmp25 = tmp10 - tmp12; + + tmp12 = z4 - z1 - z2; + + tmp22 = tmp11 + tmp12; + tmp23 = tmp11 - tmp12; + + /* Odd part */ + + z1 = (INT32) wsptr[1]; + z2 = (INT32) wsptr[3]; + z3 = (INT32) wsptr[5]; + z4 = (INT32) wsptr[7]; + + tmp11 = MULTIPLY(z2, FIX(1.306562965)); /* c3 */ + tmp14 = MULTIPLY(z2, - FIX_0_541196100); /* -c9 */ + + tmp10 = z1 + z3; + tmp15 = MULTIPLY(tmp10 + z4, FIX(0.860918669)); /* c7 */ + tmp12 = tmp15 + MULTIPLY(tmp10, FIX(0.261052384)); /* c5-c7 */ + tmp10 = tmp12 + tmp11 + MULTIPLY(z1, FIX(0.280143716)); /* c1-c5 */ + tmp13 = MULTIPLY(z3 + z4, - FIX(1.045510580)); /* -(c7+c11) */ + tmp12 += tmp13 + tmp14 - MULTIPLY(z3, FIX(1.478575242)); /* c1+c5-c7-c11 */ + tmp13 += tmp15 - tmp11 + MULTIPLY(z4, FIX(1.586706681)); /* c1+c11 */ + tmp15 += tmp14 - MULTIPLY(z1, FIX(0.676326758)) - /* c7-c11 */ + MULTIPLY(z4, FIX(1.982889723)); /* c5+c7 */ + + z1 -= z4; + z2 -= z3; + z3 = MULTIPLY(z1 + z2, FIX_0_541196100); /* c9 */ + tmp11 = z3 + MULTIPLY(z1, FIX_0_765366865); /* c3-c9 */ + tmp14 = z3 - MULTIPLY(z2, FIX_1_847759065); /* c3+c9 */ + + /* Final output stage */ + + outptr[0] = range_limit[(int) RIGHT_SHIFT(tmp20 + tmp10, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[11] = range_limit[(int) RIGHT_SHIFT(tmp20 - tmp10, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[1] = range_limit[(int) RIGHT_SHIFT(tmp21 + tmp11, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[10] = range_limit[(int) RIGHT_SHIFT(tmp21 - tmp11, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[2] = range_limit[(int) RIGHT_SHIFT(tmp22 + tmp12, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[9] = range_limit[(int) RIGHT_SHIFT(tmp22 - tmp12, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[3] = range_limit[(int) RIGHT_SHIFT(tmp23 + tmp13, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[8] = range_limit[(int) RIGHT_SHIFT(tmp23 - tmp13, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[4] = range_limit[(int) RIGHT_SHIFT(tmp24 + tmp14, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[7] = range_limit[(int) RIGHT_SHIFT(tmp24 - tmp14, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[5] = range_limit[(int) RIGHT_SHIFT(tmp25 + tmp15, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[6] = range_limit[(int) RIGHT_SHIFT(tmp25 - tmp15, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + + wsptr += 8; /* advance pointer to next row */ + } +} + + +/* + * Perform dequantization and inverse DCT on one block of coefficients, + * producing a 10x5 output block. + * + * 5-point IDCT in pass 1 (columns), 10-point in pass 2 (rows). + */ + +GLOBAL(void) +jpeg_idct_10x5 (j_decompress_ptr cinfo, jpeg_component_info * compptr, + JCOEFPTR coef_block, + JSAMPARRAY output_buf, JDIMENSION output_col) +{ + INT32 tmp10, tmp11, tmp12, tmp13, tmp14; + INT32 tmp20, tmp21, tmp22, tmp23, tmp24; + INT32 z1, z2, z3, z4; + JCOEFPTR inptr; + ISLOW_MULT_TYPE * quantptr; + int * wsptr; + JSAMPROW outptr; + JSAMPLE *range_limit = IDCT_range_limit(cinfo); + int ctr; + int workspace[8*5]; /* buffers data between passes */ + SHIFT_TEMPS + + /* Pass 1: process columns from input, store into work array. + * 5-point IDCT kernel, cK represents sqrt(2) * cos(K*pi/10). + */ + inptr = coef_block; + quantptr = (ISLOW_MULT_TYPE *) compptr->dct_table; + wsptr = workspace; + for (ctr = 0; ctr < 8; ctr++, inptr++, quantptr++, wsptr++) { + /* Even part */ + + tmp12 = DEQUANTIZE(inptr[DCTSIZE*0], quantptr[DCTSIZE*0]); + tmp12 <<= CONST_BITS; + /* Add fudge factor here for final descale. */ + tmp12 += ONE << (CONST_BITS-PASS1_BITS-1); + tmp13 = DEQUANTIZE(inptr[DCTSIZE*2], quantptr[DCTSIZE*2]); + tmp14 = DEQUANTIZE(inptr[DCTSIZE*4], quantptr[DCTSIZE*4]); + z1 = MULTIPLY(tmp13 + tmp14, FIX(0.790569415)); /* (c2+c4)/2 */ + z2 = MULTIPLY(tmp13 - tmp14, FIX(0.353553391)); /* (c2-c4)/2 */ + z3 = tmp12 + z2; + tmp10 = z3 + z1; + tmp11 = z3 - z1; + tmp12 -= z2 << 2; + + /* Odd part */ + + z2 = DEQUANTIZE(inptr[DCTSIZE*1], quantptr[DCTSIZE*1]); + z3 = DEQUANTIZE(inptr[DCTSIZE*3], quantptr[DCTSIZE*3]); + + z1 = MULTIPLY(z2 + z3, FIX(0.831253876)); /* c3 */ + tmp13 = z1 + MULTIPLY(z2, FIX(0.513743148)); /* c1-c3 */ + tmp14 = z1 - MULTIPLY(z3, FIX(2.176250899)); /* c1+c3 */ + + /* Final output stage */ + + wsptr[8*0] = (int) RIGHT_SHIFT(tmp10 + tmp13, CONST_BITS-PASS1_BITS); + wsptr[8*4] = (int) RIGHT_SHIFT(tmp10 - tmp13, CONST_BITS-PASS1_BITS); + wsptr[8*1] = (int) RIGHT_SHIFT(tmp11 + tmp14, CONST_BITS-PASS1_BITS); + wsptr[8*3] = (int) RIGHT_SHIFT(tmp11 - tmp14, CONST_BITS-PASS1_BITS); + wsptr[8*2] = (int) RIGHT_SHIFT(tmp12, CONST_BITS-PASS1_BITS); + } + + /* Pass 2: process 5 rows from work array, store into output array. + * 10-point IDCT kernel, cK represents sqrt(2) * cos(K*pi/20). + */ + wsptr = workspace; + for (ctr = 0; ctr < 5; ctr++) { + outptr = output_buf[ctr] + output_col; + + /* Even part */ + + /* Add fudge factor here for final descale. */ + z3 = (INT32) wsptr[0] + (ONE << (PASS1_BITS+2)); + z3 <<= CONST_BITS; + z4 = (INT32) wsptr[4]; + z1 = MULTIPLY(z4, FIX(1.144122806)); /* c4 */ + z2 = MULTIPLY(z4, FIX(0.437016024)); /* c8 */ + tmp10 = z3 + z1; + tmp11 = z3 - z2; + + tmp22 = z3 - ((z1 - z2) << 1); /* c0 = (c4-c8)*2 */ + + z2 = (INT32) wsptr[2]; + z3 = (INT32) wsptr[6]; + + z1 = MULTIPLY(z2 + z3, FIX(0.831253876)); /* c6 */ + tmp12 = z1 + MULTIPLY(z2, FIX(0.513743148)); /* c2-c6 */ + tmp13 = z1 - MULTIPLY(z3, FIX(2.176250899)); /* c2+c6 */ + + tmp20 = tmp10 + tmp12; + tmp24 = tmp10 - tmp12; + tmp21 = tmp11 + tmp13; + tmp23 = tmp11 - tmp13; + + /* Odd part */ + + z1 = (INT32) wsptr[1]; + z2 = (INT32) wsptr[3]; + z3 = (INT32) wsptr[5]; + z3 <<= CONST_BITS; + z4 = (INT32) wsptr[7]; + + tmp11 = z2 + z4; + tmp13 = z2 - z4; + + tmp12 = MULTIPLY(tmp13, FIX(0.309016994)); /* (c3-c7)/2 */ + + z2 = MULTIPLY(tmp11, FIX(0.951056516)); /* (c3+c7)/2 */ + z4 = z3 + tmp12; + + tmp10 = MULTIPLY(z1, FIX(1.396802247)) + z2 + z4; /* c1 */ + tmp14 = MULTIPLY(z1, FIX(0.221231742)) - z2 + z4; /* c9 */ + + z2 = MULTIPLY(tmp11, FIX(0.587785252)); /* (c1-c9)/2 */ + z4 = z3 - tmp12 - (tmp13 << (CONST_BITS - 1)); + + tmp12 = ((z1 - tmp13) << CONST_BITS) - z3; + + tmp11 = MULTIPLY(z1, FIX(1.260073511)) - z2 - z4; /* c3 */ + tmp13 = MULTIPLY(z1, FIX(0.642039522)) - z2 + z4; /* c7 */ + + /* Final output stage */ + + outptr[0] = range_limit[(int) RIGHT_SHIFT(tmp20 + tmp10, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[9] = range_limit[(int) RIGHT_SHIFT(tmp20 - tmp10, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[1] = range_limit[(int) RIGHT_SHIFT(tmp21 + tmp11, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[8] = range_limit[(int) RIGHT_SHIFT(tmp21 - tmp11, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[2] = range_limit[(int) RIGHT_SHIFT(tmp22 + tmp12, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[7] = range_limit[(int) RIGHT_SHIFT(tmp22 - tmp12, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[3] = range_limit[(int) RIGHT_SHIFT(tmp23 + tmp13, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[6] = range_limit[(int) RIGHT_SHIFT(tmp23 - tmp13, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[4] = range_limit[(int) RIGHT_SHIFT(tmp24 + tmp14, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[5] = range_limit[(int) RIGHT_SHIFT(tmp24 - tmp14, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + + wsptr += 8; /* advance pointer to next row */ + } +} + + +/* + * Perform dequantization and inverse DCT on one block of coefficients, + * producing a 8x4 output block. + * + * 4-point IDCT in pass 1 (columns), 8-point in pass 2 (rows). + */ + +GLOBAL(void) +jpeg_idct_8x4 (j_decompress_ptr cinfo, jpeg_component_info * compptr, + JCOEFPTR coef_block, + JSAMPARRAY output_buf, JDIMENSION output_col) +{ + INT32 tmp0, tmp1, tmp2, tmp3; + INT32 tmp10, tmp11, tmp12, tmp13; + INT32 z1, z2, z3; + JCOEFPTR inptr; + ISLOW_MULT_TYPE * quantptr; + int * wsptr; + JSAMPROW outptr; + JSAMPLE *range_limit = IDCT_range_limit(cinfo); + int ctr; + int workspace[8*4]; /* buffers data between passes */ + SHIFT_TEMPS + + /* Pass 1: process columns from input, store into work array. + * 4-point IDCT kernel, cK represents sqrt(2) * cos(K*pi/16). + */ + inptr = coef_block; + quantptr = (ISLOW_MULT_TYPE *) compptr->dct_table; + wsptr = workspace; + for (ctr = 0; ctr < 8; ctr++, inptr++, quantptr++, wsptr++) { + /* Even part */ + + tmp0 = DEQUANTIZE(inptr[DCTSIZE*0], quantptr[DCTSIZE*0]); + tmp2 = DEQUANTIZE(inptr[DCTSIZE*2], quantptr[DCTSIZE*2]); + + tmp10 = (tmp0 + tmp2) << PASS1_BITS; + tmp12 = (tmp0 - tmp2) << PASS1_BITS; + + /* Odd part */ + /* Same rotation as in the even part of the 8x8 LL&M IDCT */ + + z2 = DEQUANTIZE(inptr[DCTSIZE*1], quantptr[DCTSIZE*1]); + z3 = DEQUANTIZE(inptr[DCTSIZE*3], quantptr[DCTSIZE*3]); + + z1 = MULTIPLY(z2 + z3, FIX_0_541196100); /* c6 */ + /* Add fudge factor here for final descale. */ + z1 += ONE << (CONST_BITS-PASS1_BITS-1); + tmp0 = RIGHT_SHIFT(z1 + MULTIPLY(z2, FIX_0_765366865), /* c2-c6 */ + CONST_BITS-PASS1_BITS); + tmp2 = RIGHT_SHIFT(z1 - MULTIPLY(z3, FIX_1_847759065), /* c2+c6 */ + CONST_BITS-PASS1_BITS); + + /* Final output stage */ + + wsptr[8*0] = (int) (tmp10 + tmp0); + wsptr[8*3] = (int) (tmp10 - tmp0); + wsptr[8*1] = (int) (tmp12 + tmp2); + wsptr[8*2] = (int) (tmp12 - tmp2); + } + + /* Pass 2: process rows from work array, store into output array. */ + /* Note that we must descale the results by a factor of 8 == 2**3, */ + /* and also undo the PASS1_BITS scaling. */ + + wsptr = workspace; + for (ctr = 0; ctr < 4; ctr++) { + outptr = output_buf[ctr] + output_col; + + /* Even part: reverse the even part of the forward DCT. */ + /* The rotator is sqrt(2)*c(-6). */ + + z2 = (INT32) wsptr[2]; + z3 = (INT32) wsptr[6]; + + z1 = MULTIPLY(z2 + z3, FIX_0_541196100); + tmp2 = z1 + MULTIPLY(z2, FIX_0_765366865); + tmp3 = z1 - MULTIPLY(z3, FIX_1_847759065); + + /* Add fudge factor here for final descale. */ + z2 = (INT32) wsptr[0] + (ONE << (PASS1_BITS+2)); + z3 = (INT32) wsptr[4]; + + tmp0 = (z2 + z3) << CONST_BITS; + tmp1 = (z2 - z3) << CONST_BITS; + + tmp10 = tmp0 + tmp2; + tmp13 = tmp0 - tmp2; + tmp11 = tmp1 + tmp3; + tmp12 = tmp1 - tmp3; + + /* Odd part per figure 8; the matrix is unitary and hence its + * transpose is its inverse. i0..i3 are y7,y5,y3,y1 respectively. + */ + + tmp0 = (INT32) wsptr[7]; + tmp1 = (INT32) wsptr[5]; + tmp2 = (INT32) wsptr[3]; + tmp3 = (INT32) wsptr[1]; + + z2 = tmp0 + tmp2; + z3 = tmp1 + tmp3; + + z1 = MULTIPLY(z2 + z3, FIX_1_175875602); /* sqrt(2) * c3 */ + z2 = MULTIPLY(z2, - FIX_1_961570560); /* sqrt(2) * (-c3-c5) */ + z3 = MULTIPLY(z3, - FIX_0_390180644); /* sqrt(2) * (c5-c3) */ + z2 += z1; + z3 += z1; + + z1 = MULTIPLY(tmp0 + tmp3, - FIX_0_899976223); /* sqrt(2) * (c7-c3) */ + tmp0 = MULTIPLY(tmp0, FIX_0_298631336); /* sqrt(2) * (-c1+c3+c5-c7) */ + tmp3 = MULTIPLY(tmp3, FIX_1_501321110); /* sqrt(2) * ( c1+c3-c5-c7) */ + tmp0 += z1 + z2; + tmp3 += z1 + z3; + + z1 = MULTIPLY(tmp1 + tmp2, - FIX_2_562915447); /* sqrt(2) * (-c1-c3) */ + tmp1 = MULTIPLY(tmp1, FIX_2_053119869); /* sqrt(2) * ( c1+c3-c5+c7) */ + tmp2 = MULTIPLY(tmp2, FIX_3_072711026); /* sqrt(2) * ( c1+c3+c5-c7) */ + tmp1 += z1 + z3; + tmp2 += z1 + z2; + + /* Final output stage: inputs are tmp10..tmp13, tmp0..tmp3 */ + + outptr[0] = range_limit[(int) RIGHT_SHIFT(tmp10 + tmp3, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[7] = range_limit[(int) RIGHT_SHIFT(tmp10 - tmp3, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[1] = range_limit[(int) RIGHT_SHIFT(tmp11 + tmp2, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[6] = range_limit[(int) RIGHT_SHIFT(tmp11 - tmp2, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[2] = range_limit[(int) RIGHT_SHIFT(tmp12 + tmp1, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[5] = range_limit[(int) RIGHT_SHIFT(tmp12 - tmp1, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[3] = range_limit[(int) RIGHT_SHIFT(tmp13 + tmp0, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[4] = range_limit[(int) RIGHT_SHIFT(tmp13 - tmp0, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + + wsptr += DCTSIZE; /* advance pointer to next row */ + } +} + + +/* + * Perform dequantization and inverse DCT on one block of coefficients, + * producing a reduced-size 6x3 output block. + * + * 3-point IDCT in pass 1 (columns), 6-point in pass 2 (rows). + */ + +GLOBAL(void) +jpeg_idct_6x3 (j_decompress_ptr cinfo, jpeg_component_info * compptr, + JCOEFPTR coef_block, + JSAMPARRAY output_buf, JDIMENSION output_col) +{ + INT32 tmp0, tmp1, tmp2, tmp10, tmp11, tmp12; + INT32 z1, z2, z3; + JCOEFPTR inptr; + ISLOW_MULT_TYPE * quantptr; + int * wsptr; + JSAMPROW outptr; + JSAMPLE *range_limit = IDCT_range_limit(cinfo); + int ctr; + int workspace[6*3]; /* buffers data between passes */ + SHIFT_TEMPS + + /* Pass 1: process columns from input, store into work array. + * 3-point IDCT kernel, cK represents sqrt(2) * cos(K*pi/6). + */ + inptr = coef_block; + quantptr = (ISLOW_MULT_TYPE *) compptr->dct_table; + wsptr = workspace; + for (ctr = 0; ctr < 6; ctr++, inptr++, quantptr++, wsptr++) { + /* Even part */ + + tmp0 = DEQUANTIZE(inptr[DCTSIZE*0], quantptr[DCTSIZE*0]); + tmp0 <<= CONST_BITS; + /* Add fudge factor here for final descale. */ + tmp0 += ONE << (CONST_BITS-PASS1_BITS-1); + tmp2 = DEQUANTIZE(inptr[DCTSIZE*2], quantptr[DCTSIZE*2]); + tmp12 = MULTIPLY(tmp2, FIX(0.707106781)); /* c2 */ + tmp10 = tmp0 + tmp12; + tmp2 = tmp0 - tmp12 - tmp12; + + /* Odd part */ + + tmp12 = DEQUANTIZE(inptr[DCTSIZE*1], quantptr[DCTSIZE*1]); + tmp0 = MULTIPLY(tmp12, FIX(1.224744871)); /* c1 */ + + /* Final output stage */ + + wsptr[6*0] = (int) RIGHT_SHIFT(tmp10 + tmp0, CONST_BITS-PASS1_BITS); + wsptr[6*2] = (int) RIGHT_SHIFT(tmp10 - tmp0, CONST_BITS-PASS1_BITS); + wsptr[6*1] = (int) RIGHT_SHIFT(tmp2, CONST_BITS-PASS1_BITS); + } + + /* Pass 2: process 3 rows from work array, store into output array. + * 6-point IDCT kernel, cK represents sqrt(2) * cos(K*pi/12). + */ + wsptr = workspace; + for (ctr = 0; ctr < 3; ctr++) { + outptr = output_buf[ctr] + output_col; + + /* Even part */ + + /* Add fudge factor here for final descale. */ + tmp0 = (INT32) wsptr[0] + (ONE << (PASS1_BITS+2)); + tmp0 <<= CONST_BITS; + tmp2 = (INT32) wsptr[4]; + tmp10 = MULTIPLY(tmp2, FIX(0.707106781)); /* c4 */ + tmp1 = tmp0 + tmp10; + tmp11 = tmp0 - tmp10 - tmp10; + tmp10 = (INT32) wsptr[2]; + tmp0 = MULTIPLY(tmp10, FIX(1.224744871)); /* c2 */ + tmp10 = tmp1 + tmp0; + tmp12 = tmp1 - tmp0; + + /* Odd part */ + + z1 = (INT32) wsptr[1]; + z2 = (INT32) wsptr[3]; + z3 = (INT32) wsptr[5]; + tmp1 = MULTIPLY(z1 + z3, FIX(0.366025404)); /* c5 */ + tmp0 = tmp1 + ((z1 + z2) << CONST_BITS); + tmp2 = tmp1 + ((z3 - z2) << CONST_BITS); + tmp1 = (z1 - z2 - z3) << CONST_BITS; + + /* Final output stage */ + + outptr[0] = range_limit[(int) RIGHT_SHIFT(tmp10 + tmp0, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[5] = range_limit[(int) RIGHT_SHIFT(tmp10 - tmp0, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[1] = range_limit[(int) RIGHT_SHIFT(tmp11 + tmp1, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[4] = range_limit[(int) RIGHT_SHIFT(tmp11 - tmp1, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[2] = range_limit[(int) RIGHT_SHIFT(tmp12 + tmp2, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[3] = range_limit[(int) RIGHT_SHIFT(tmp12 - tmp2, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + + wsptr += 6; /* advance pointer to next row */ + } +} + + +/* + * Perform dequantization and inverse DCT on one block of coefficients, + * producing a 4x2 output block. + * + * 2-point IDCT in pass 1 (columns), 4-point in pass 2 (rows). + */ + +GLOBAL(void) +jpeg_idct_4x2 (j_decompress_ptr cinfo, jpeg_component_info * compptr, + JCOEFPTR coef_block, + JSAMPARRAY output_buf, JDIMENSION output_col) +{ + INT32 tmp0, tmp2, tmp10, tmp12; + INT32 z1, z2, z3; + JCOEFPTR inptr; + ISLOW_MULT_TYPE * quantptr; + INT32 * wsptr; + JSAMPROW outptr; + JSAMPLE *range_limit = IDCT_range_limit(cinfo); + int ctr; + INT32 workspace[4*2]; /* buffers data between passes */ + SHIFT_TEMPS + + /* Pass 1: process columns from input, store into work array. */ + + inptr = coef_block; + quantptr = (ISLOW_MULT_TYPE *) compptr->dct_table; + wsptr = workspace; + for (ctr = 0; ctr < 4; ctr++, inptr++, quantptr++, wsptr++) { + /* Even part */ + + tmp10 = DEQUANTIZE(inptr[DCTSIZE*0], quantptr[DCTSIZE*0]); + + /* Odd part */ + + tmp0 = DEQUANTIZE(inptr[DCTSIZE*1], quantptr[DCTSIZE*1]); + + /* Final output stage */ + + wsptr[4*0] = tmp10 + tmp0; + wsptr[4*1] = tmp10 - tmp0; + } + + /* Pass 2: process 2 rows from work array, store into output array. + * 4-point IDCT kernel, + * cK represents sqrt(2) * cos(K*pi/16) [refers to 8-point IDCT]. + */ + wsptr = workspace; + for (ctr = 0; ctr < 2; ctr++) { + outptr = output_buf[ctr] + output_col; + + /* Even part */ + + /* Add fudge factor here for final descale. */ + tmp0 = wsptr[0] + (ONE << 2); + tmp2 = wsptr[2]; + + tmp10 = (tmp0 + tmp2) << CONST_BITS; + tmp12 = (tmp0 - tmp2) << CONST_BITS; + + /* Odd part */ + /* Same rotation as in the even part of the 8x8 LL&M IDCT */ + + z2 = wsptr[1]; + z3 = wsptr[3]; + + z1 = MULTIPLY(z2 + z3, FIX_0_541196100); /* c6 */ + tmp0 = z1 + MULTIPLY(z2, FIX_0_765366865); /* c2-c6 */ + tmp2 = z1 - MULTIPLY(z3, FIX_1_847759065); /* c2+c6 */ + + /* Final output stage */ + + outptr[0] = range_limit[(int) RIGHT_SHIFT(tmp10 + tmp0, + CONST_BITS+3) + & RANGE_MASK]; + outptr[3] = range_limit[(int) RIGHT_SHIFT(tmp10 - tmp0, + CONST_BITS+3) + & RANGE_MASK]; + outptr[1] = range_limit[(int) RIGHT_SHIFT(tmp12 + tmp2, + CONST_BITS+3) + & RANGE_MASK]; + outptr[2] = range_limit[(int) RIGHT_SHIFT(tmp12 - tmp2, + CONST_BITS+3) + & RANGE_MASK]; + + wsptr += 4; /* advance pointer to next row */ + } +} + + +/* + * Perform dequantization and inverse DCT on one block of coefficients, + * producing a 2x1 output block. + * + * 1-point IDCT in pass 1 (columns), 2-point in pass 2 (rows). + */ + +GLOBAL(void) +jpeg_idct_2x1 (j_decompress_ptr cinfo, jpeg_component_info * compptr, + JCOEFPTR coef_block, + JSAMPARRAY output_buf, JDIMENSION output_col) +{ + INT32 tmp0, tmp10; + ISLOW_MULT_TYPE * quantptr; + JSAMPROW outptr; + JSAMPLE *range_limit = IDCT_range_limit(cinfo); + SHIFT_TEMPS + + /* Pass 1: empty. */ + + /* Pass 2: process 1 row from input, store into output array. */ + + quantptr = (ISLOW_MULT_TYPE *) compptr->dct_table; + outptr = output_buf[0] + output_col; + + /* Even part */ + + tmp10 = DEQUANTIZE(coef_block[0], quantptr[0]); + /* Add fudge factor here for final descale. */ + tmp10 += ONE << 2; + + /* Odd part */ + + tmp0 = DEQUANTIZE(coef_block[1], quantptr[1]); + + /* Final output stage */ + + outptr[0] = range_limit[(int) RIGHT_SHIFT(tmp10 + tmp0, 3) & RANGE_MASK]; + outptr[1] = range_limit[(int) RIGHT_SHIFT(tmp10 - tmp0, 3) & RANGE_MASK]; +} + + +/* + * Perform dequantization and inverse DCT on one block of coefficients, + * producing a 8x16 output block. + * + * 16-point IDCT in pass 1 (columns), 8-point in pass 2 (rows). + */ + +GLOBAL(void) +jpeg_idct_8x16 (j_decompress_ptr cinfo, jpeg_component_info * compptr, + JCOEFPTR coef_block, + JSAMPARRAY output_buf, JDIMENSION output_col) +{ + INT32 tmp0, tmp1, tmp2, tmp3, tmp10, tmp11, tmp12, tmp13; + INT32 tmp20, tmp21, tmp22, tmp23, tmp24, tmp25, tmp26, tmp27; + INT32 z1, z2, z3, z4; + JCOEFPTR inptr; + ISLOW_MULT_TYPE * quantptr; + int * wsptr; + JSAMPROW outptr; + JSAMPLE *range_limit = IDCT_range_limit(cinfo); + int ctr; + int workspace[8*16]; /* buffers data between passes */ + SHIFT_TEMPS + + /* Pass 1: process columns from input, store into work array. + * 16-point IDCT kernel, cK represents sqrt(2) * cos(K*pi/32). + */ + inptr = coef_block; + quantptr = (ISLOW_MULT_TYPE *) compptr->dct_table; + wsptr = workspace; + for (ctr = 0; ctr < 8; ctr++, inptr++, quantptr++, wsptr++) { + /* Even part */ + + tmp0 = DEQUANTIZE(inptr[DCTSIZE*0], quantptr[DCTSIZE*0]); + tmp0 <<= CONST_BITS; + /* Add fudge factor here for final descale. */ + tmp0 += ONE << (CONST_BITS-PASS1_BITS-1); + + z1 = DEQUANTIZE(inptr[DCTSIZE*4], quantptr[DCTSIZE*4]); + tmp1 = MULTIPLY(z1, FIX(1.306562965)); /* c4[16] = c2[8] */ + tmp2 = MULTIPLY(z1, FIX_0_541196100); /* c12[16] = c6[8] */ + + tmp10 = tmp0 + tmp1; + tmp11 = tmp0 - tmp1; + tmp12 = tmp0 + tmp2; + tmp13 = tmp0 - tmp2; + + z1 = DEQUANTIZE(inptr[DCTSIZE*2], quantptr[DCTSIZE*2]); + z2 = DEQUANTIZE(inptr[DCTSIZE*6], quantptr[DCTSIZE*6]); + z3 = z1 - z2; + z4 = MULTIPLY(z3, FIX(0.275899379)); /* c14[16] = c7[8] */ + z3 = MULTIPLY(z3, FIX(1.387039845)); /* c2[16] = c1[8] */ + + tmp0 = z3 + MULTIPLY(z2, FIX_2_562915447); /* (c6+c2)[16] = (c3+c1)[8] */ + tmp1 = z4 + MULTIPLY(z1, FIX_0_899976223); /* (c6-c14)[16] = (c3-c7)[8] */ + tmp2 = z3 - MULTIPLY(z1, FIX(0.601344887)); /* (c2-c10)[16] = (c1-c5)[8] */ + tmp3 = z4 - MULTIPLY(z2, FIX(0.509795579)); /* (c10-c14)[16] = (c5-c7)[8] */ + + tmp20 = tmp10 + tmp0; + tmp27 = tmp10 - tmp0; + tmp21 = tmp12 + tmp1; + tmp26 = tmp12 - tmp1; + tmp22 = tmp13 + tmp2; + tmp25 = tmp13 - tmp2; + tmp23 = tmp11 + tmp3; + tmp24 = tmp11 - tmp3; + + /* Odd part */ + + z1 = DEQUANTIZE(inptr[DCTSIZE*1], quantptr[DCTSIZE*1]); + z2 = DEQUANTIZE(inptr[DCTSIZE*3], quantptr[DCTSIZE*3]); + z3 = DEQUANTIZE(inptr[DCTSIZE*5], quantptr[DCTSIZE*5]); + z4 = DEQUANTIZE(inptr[DCTSIZE*7], quantptr[DCTSIZE*7]); + + tmp11 = z1 + z3; + + tmp1 = MULTIPLY(z1 + z2, FIX(1.353318001)); /* c3 */ + tmp2 = MULTIPLY(tmp11, FIX(1.247225013)); /* c5 */ + tmp3 = MULTIPLY(z1 + z4, FIX(1.093201867)); /* c7 */ + tmp10 = MULTIPLY(z1 - z4, FIX(0.897167586)); /* c9 */ + tmp11 = MULTIPLY(tmp11, FIX(0.666655658)); /* c11 */ + tmp12 = MULTIPLY(z1 - z2, FIX(0.410524528)); /* c13 */ + tmp0 = tmp1 + tmp2 + tmp3 - + MULTIPLY(z1, FIX(2.286341144)); /* c7+c5+c3-c1 */ + tmp13 = tmp10 + tmp11 + tmp12 - + MULTIPLY(z1, FIX(1.835730603)); /* c9+c11+c13-c15 */ + z1 = MULTIPLY(z2 + z3, FIX(0.138617169)); /* c15 */ + tmp1 += z1 + MULTIPLY(z2, FIX(0.071888074)); /* c9+c11-c3-c15 */ + tmp2 += z1 - MULTIPLY(z3, FIX(1.125726048)); /* c5+c7+c15-c3 */ + z1 = MULTIPLY(z3 - z2, FIX(1.407403738)); /* c1 */ + tmp11 += z1 - MULTIPLY(z3, FIX(0.766367282)); /* c1+c11-c9-c13 */ + tmp12 += z1 + MULTIPLY(z2, FIX(1.971951411)); /* c1+c5+c13-c7 */ + z2 += z4; + z1 = MULTIPLY(z2, - FIX(0.666655658)); /* -c11 */ + tmp1 += z1; + tmp3 += z1 + MULTIPLY(z4, FIX(1.065388962)); /* c3+c11+c15-c7 */ + z2 = MULTIPLY(z2, - FIX(1.247225013)); /* -c5 */ + tmp10 += z2 + MULTIPLY(z4, FIX(3.141271809)); /* c1+c5+c9-c13 */ + tmp12 += z2; + z2 = MULTIPLY(z3 + z4, - FIX(1.353318001)); /* -c3 */ + tmp2 += z2; + tmp3 += z2; + z2 = MULTIPLY(z4 - z3, FIX(0.410524528)); /* c13 */ + tmp10 += z2; + tmp11 += z2; + + /* Final output stage */ + + wsptr[8*0] = (int) RIGHT_SHIFT(tmp20 + tmp0, CONST_BITS-PASS1_BITS); + wsptr[8*15] = (int) RIGHT_SHIFT(tmp20 - tmp0, CONST_BITS-PASS1_BITS); + wsptr[8*1] = (int) RIGHT_SHIFT(tmp21 + tmp1, CONST_BITS-PASS1_BITS); + wsptr[8*14] = (int) RIGHT_SHIFT(tmp21 - tmp1, CONST_BITS-PASS1_BITS); + wsptr[8*2] = (int) RIGHT_SHIFT(tmp22 + tmp2, CONST_BITS-PASS1_BITS); + wsptr[8*13] = (int) RIGHT_SHIFT(tmp22 - tmp2, CONST_BITS-PASS1_BITS); + wsptr[8*3] = (int) RIGHT_SHIFT(tmp23 + tmp3, CONST_BITS-PASS1_BITS); + wsptr[8*12] = (int) RIGHT_SHIFT(tmp23 - tmp3, CONST_BITS-PASS1_BITS); + wsptr[8*4] = (int) RIGHT_SHIFT(tmp24 + tmp10, CONST_BITS-PASS1_BITS); + wsptr[8*11] = (int) RIGHT_SHIFT(tmp24 - tmp10, CONST_BITS-PASS1_BITS); + wsptr[8*5] = (int) RIGHT_SHIFT(tmp25 + tmp11, CONST_BITS-PASS1_BITS); + wsptr[8*10] = (int) RIGHT_SHIFT(tmp25 - tmp11, CONST_BITS-PASS1_BITS); + wsptr[8*6] = (int) RIGHT_SHIFT(tmp26 + tmp12, CONST_BITS-PASS1_BITS); + wsptr[8*9] = (int) RIGHT_SHIFT(tmp26 - tmp12, CONST_BITS-PASS1_BITS); + wsptr[8*7] = (int) RIGHT_SHIFT(tmp27 + tmp13, CONST_BITS-PASS1_BITS); + wsptr[8*8] = (int) RIGHT_SHIFT(tmp27 - tmp13, CONST_BITS-PASS1_BITS); + } + + /* Pass 2: process rows from work array, store into output array. */ + /* Note that we must descale the results by a factor of 8 == 2**3, */ + /* and also undo the PASS1_BITS scaling. */ + + wsptr = workspace; + for (ctr = 0; ctr < 16; ctr++) { + outptr = output_buf[ctr] + output_col; + + /* Even part: reverse the even part of the forward DCT. */ + /* The rotator is sqrt(2)*c(-6). */ + + z2 = (INT32) wsptr[2]; + z3 = (INT32) wsptr[6]; + + z1 = MULTIPLY(z2 + z3, FIX_0_541196100); + tmp2 = z1 + MULTIPLY(z2, FIX_0_765366865); + tmp3 = z1 - MULTIPLY(z3, FIX_1_847759065); + + /* Add fudge factor here for final descale. */ + z2 = (INT32) wsptr[0] + (ONE << (PASS1_BITS+2)); + z3 = (INT32) wsptr[4]; + + tmp0 = (z2 + z3) << CONST_BITS; + tmp1 = (z2 - z3) << CONST_BITS; + + tmp10 = tmp0 + tmp2; + tmp13 = tmp0 - tmp2; + tmp11 = tmp1 + tmp3; + tmp12 = tmp1 - tmp3; + + /* Odd part per figure 8; the matrix is unitary and hence its + * transpose is its inverse. i0..i3 are y7,y5,y3,y1 respectively. + */ + + tmp0 = (INT32) wsptr[7]; + tmp1 = (INT32) wsptr[5]; + tmp2 = (INT32) wsptr[3]; + tmp3 = (INT32) wsptr[1]; + + z2 = tmp0 + tmp2; + z3 = tmp1 + tmp3; + + z1 = MULTIPLY(z2 + z3, FIX_1_175875602); /* sqrt(2) * c3 */ + z2 = MULTIPLY(z2, - FIX_1_961570560); /* sqrt(2) * (-c3-c5) */ + z3 = MULTIPLY(z3, - FIX_0_390180644); /* sqrt(2) * (c5-c3) */ + z2 += z1; + z3 += z1; + + z1 = MULTIPLY(tmp0 + tmp3, - FIX_0_899976223); /* sqrt(2) * (c7-c3) */ + tmp0 = MULTIPLY(tmp0, FIX_0_298631336); /* sqrt(2) * (-c1+c3+c5-c7) */ + tmp3 = MULTIPLY(tmp3, FIX_1_501321110); /* sqrt(2) * ( c1+c3-c5-c7) */ + tmp0 += z1 + z2; + tmp3 += z1 + z3; + + z1 = MULTIPLY(tmp1 + tmp2, - FIX_2_562915447); /* sqrt(2) * (-c1-c3) */ + tmp1 = MULTIPLY(tmp1, FIX_2_053119869); /* sqrt(2) * ( c1+c3-c5+c7) */ + tmp2 = MULTIPLY(tmp2, FIX_3_072711026); /* sqrt(2) * ( c1+c3+c5-c7) */ + tmp1 += z1 + z3; + tmp2 += z1 + z2; + + /* Final output stage: inputs are tmp10..tmp13, tmp0..tmp3 */ + + outptr[0] = range_limit[(int) RIGHT_SHIFT(tmp10 + tmp3, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[7] = range_limit[(int) RIGHT_SHIFT(tmp10 - tmp3, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[1] = range_limit[(int) RIGHT_SHIFT(tmp11 + tmp2, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[6] = range_limit[(int) RIGHT_SHIFT(tmp11 - tmp2, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[2] = range_limit[(int) RIGHT_SHIFT(tmp12 + tmp1, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[5] = range_limit[(int) RIGHT_SHIFT(tmp12 - tmp1, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[3] = range_limit[(int) RIGHT_SHIFT(tmp13 + tmp0, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[4] = range_limit[(int) RIGHT_SHIFT(tmp13 - tmp0, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + + wsptr += DCTSIZE; /* advance pointer to next row */ + } +} + + +/* + * Perform dequantization and inverse DCT on one block of coefficients, + * producing a 7x14 output block. + * + * 14-point IDCT in pass 1 (columns), 7-point in pass 2 (rows). + */ + +GLOBAL(void) +jpeg_idct_7x14 (j_decompress_ptr cinfo, jpeg_component_info * compptr, + JCOEFPTR coef_block, + JSAMPARRAY output_buf, JDIMENSION output_col) +{ + INT32 tmp10, tmp11, tmp12, tmp13, tmp14, tmp15, tmp16; + INT32 tmp20, tmp21, tmp22, tmp23, tmp24, tmp25, tmp26; + INT32 z1, z2, z3, z4; + JCOEFPTR inptr; + ISLOW_MULT_TYPE * quantptr; + int * wsptr; + JSAMPROW outptr; + JSAMPLE *range_limit = IDCT_range_limit(cinfo); + int ctr; + int workspace[7*14]; /* buffers data between passes */ + SHIFT_TEMPS + + /* Pass 1: process columns from input, store into work array. + * 14-point IDCT kernel, cK represents sqrt(2) * cos(K*pi/28). + */ + inptr = coef_block; + quantptr = (ISLOW_MULT_TYPE *) compptr->dct_table; + wsptr = workspace; + for (ctr = 0; ctr < 7; ctr++, inptr++, quantptr++, wsptr++) { + /* Even part */ + + z1 = DEQUANTIZE(inptr[DCTSIZE*0], quantptr[DCTSIZE*0]); + z1 <<= CONST_BITS; + /* Add fudge factor here for final descale. */ + z1 += ONE << (CONST_BITS-PASS1_BITS-1); + z4 = DEQUANTIZE(inptr[DCTSIZE*4], quantptr[DCTSIZE*4]); + z2 = MULTIPLY(z4, FIX(1.274162392)); /* c4 */ + z3 = MULTIPLY(z4, FIX(0.314692123)); /* c12 */ + z4 = MULTIPLY(z4, FIX(0.881747734)); /* c8 */ + + tmp10 = z1 + z2; + tmp11 = z1 + z3; + tmp12 = z1 - z4; + + tmp23 = RIGHT_SHIFT(z1 - ((z2 + z3 - z4) << 1), /* c0 = (c4+c12-c8)*2 */ + CONST_BITS-PASS1_BITS); + + z1 = DEQUANTIZE(inptr[DCTSIZE*2], quantptr[DCTSIZE*2]); + z2 = DEQUANTIZE(inptr[DCTSIZE*6], quantptr[DCTSIZE*6]); + + z3 = MULTIPLY(z1 + z2, FIX(1.105676686)); /* c6 */ + + tmp13 = z3 + MULTIPLY(z1, FIX(0.273079590)); /* c2-c6 */ + tmp14 = z3 - MULTIPLY(z2, FIX(1.719280954)); /* c6+c10 */ + tmp15 = MULTIPLY(z1, FIX(0.613604268)) - /* c10 */ + MULTIPLY(z2, FIX(1.378756276)); /* c2 */ + + tmp20 = tmp10 + tmp13; + tmp26 = tmp10 - tmp13; + tmp21 = tmp11 + tmp14; + tmp25 = tmp11 - tmp14; + tmp22 = tmp12 + tmp15; + tmp24 = tmp12 - tmp15; + + /* Odd part */ + + z1 = DEQUANTIZE(inptr[DCTSIZE*1], quantptr[DCTSIZE*1]); + z2 = DEQUANTIZE(inptr[DCTSIZE*3], quantptr[DCTSIZE*3]); + z3 = DEQUANTIZE(inptr[DCTSIZE*5], quantptr[DCTSIZE*5]); + z4 = DEQUANTIZE(inptr[DCTSIZE*7], quantptr[DCTSIZE*7]); + tmp13 = z4 << CONST_BITS; + + tmp14 = z1 + z3; + tmp11 = MULTIPLY(z1 + z2, FIX(1.334852607)); /* c3 */ + tmp12 = MULTIPLY(tmp14, FIX(1.197448846)); /* c5 */ + tmp10 = tmp11 + tmp12 + tmp13 - MULTIPLY(z1, FIX(1.126980169)); /* c3+c5-c1 */ + tmp14 = MULTIPLY(tmp14, FIX(0.752406978)); /* c9 */ + tmp16 = tmp14 - MULTIPLY(z1, FIX(1.061150426)); /* c9+c11-c13 */ + z1 -= z2; + tmp15 = MULTIPLY(z1, FIX(0.467085129)) - tmp13; /* c11 */ + tmp16 += tmp15; + z1 += z4; + z4 = MULTIPLY(z2 + z3, - FIX(0.158341681)) - tmp13; /* -c13 */ + tmp11 += z4 - MULTIPLY(z2, FIX(0.424103948)); /* c3-c9-c13 */ + tmp12 += z4 - MULTIPLY(z3, FIX(2.373959773)); /* c3+c5-c13 */ + z4 = MULTIPLY(z3 - z2, FIX(1.405321284)); /* c1 */ + tmp14 += z4 + tmp13 - MULTIPLY(z3, FIX(1.6906431334)); /* c1+c9-c11 */ + tmp15 += z4 + MULTIPLY(z2, FIX(0.674957567)); /* c1+c11-c5 */ + + tmp13 = (z1 - z3) << PASS1_BITS; + + /* Final output stage */ + + wsptr[7*0] = (int) RIGHT_SHIFT(tmp20 + tmp10, CONST_BITS-PASS1_BITS); + wsptr[7*13] = (int) RIGHT_SHIFT(tmp20 - tmp10, CONST_BITS-PASS1_BITS); + wsptr[7*1] = (int) RIGHT_SHIFT(tmp21 + tmp11, CONST_BITS-PASS1_BITS); + wsptr[7*12] = (int) RIGHT_SHIFT(tmp21 - tmp11, CONST_BITS-PASS1_BITS); + wsptr[7*2] = (int) RIGHT_SHIFT(tmp22 + tmp12, CONST_BITS-PASS1_BITS); + wsptr[7*11] = (int) RIGHT_SHIFT(tmp22 - tmp12, CONST_BITS-PASS1_BITS); + wsptr[7*3] = (int) (tmp23 + tmp13); + wsptr[7*10] = (int) (tmp23 - tmp13); + wsptr[7*4] = (int) RIGHT_SHIFT(tmp24 + tmp14, CONST_BITS-PASS1_BITS); + wsptr[7*9] = (int) RIGHT_SHIFT(tmp24 - tmp14, CONST_BITS-PASS1_BITS); + wsptr[7*5] = (int) RIGHT_SHIFT(tmp25 + tmp15, CONST_BITS-PASS1_BITS); + wsptr[7*8] = (int) RIGHT_SHIFT(tmp25 - tmp15, CONST_BITS-PASS1_BITS); + wsptr[7*6] = (int) RIGHT_SHIFT(tmp26 + tmp16, CONST_BITS-PASS1_BITS); + wsptr[7*7] = (int) RIGHT_SHIFT(tmp26 - tmp16, CONST_BITS-PASS1_BITS); + } + + /* Pass 2: process 14 rows from work array, store into output array. + * 7-point IDCT kernel, cK represents sqrt(2) * cos(K*pi/14). + */ + wsptr = workspace; + for (ctr = 0; ctr < 14; ctr++) { + outptr = output_buf[ctr] + output_col; + + /* Even part */ + + /* Add fudge factor here for final descale. */ + tmp23 = (INT32) wsptr[0] + (ONE << (PASS1_BITS+2)); + tmp23 <<= CONST_BITS; + + z1 = (INT32) wsptr[2]; + z2 = (INT32) wsptr[4]; + z3 = (INT32) wsptr[6]; + + tmp20 = MULTIPLY(z2 - z3, FIX(0.881747734)); /* c4 */ + tmp22 = MULTIPLY(z1 - z2, FIX(0.314692123)); /* c6 */ + tmp21 = tmp20 + tmp22 + tmp23 - MULTIPLY(z2, FIX(1.841218003)); /* c2+c4-c6 */ + tmp10 = z1 + z3; + z2 -= tmp10; + tmp10 = MULTIPLY(tmp10, FIX(1.274162392)) + tmp23; /* c2 */ + tmp20 += tmp10 - MULTIPLY(z3, FIX(0.077722536)); /* c2-c4-c6 */ + tmp22 += tmp10 - MULTIPLY(z1, FIX(2.470602249)); /* c2+c4+c6 */ + tmp23 += MULTIPLY(z2, FIX(1.414213562)); /* c0 */ + + /* Odd part */ + + z1 = (INT32) wsptr[1]; + z2 = (INT32) wsptr[3]; + z3 = (INT32) wsptr[5]; + + tmp11 = MULTIPLY(z1 + z2, FIX(0.935414347)); /* (c3+c1-c5)/2 */ + tmp12 = MULTIPLY(z1 - z2, FIX(0.170262339)); /* (c3+c5-c1)/2 */ + tmp10 = tmp11 - tmp12; + tmp11 += tmp12; + tmp12 = MULTIPLY(z2 + z3, - FIX(1.378756276)); /* -c1 */ + tmp11 += tmp12; + z2 = MULTIPLY(z1 + z3, FIX(0.613604268)); /* c5 */ + tmp10 += z2; + tmp12 += z2 + MULTIPLY(z3, FIX(1.870828693)); /* c3+c1-c5 */ + + /* Final output stage */ + + outptr[0] = range_limit[(int) RIGHT_SHIFT(tmp20 + tmp10, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[6] = range_limit[(int) RIGHT_SHIFT(tmp20 - tmp10, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[1] = range_limit[(int) RIGHT_SHIFT(tmp21 + tmp11, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[5] = range_limit[(int) RIGHT_SHIFT(tmp21 - tmp11, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[2] = range_limit[(int) RIGHT_SHIFT(tmp22 + tmp12, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[4] = range_limit[(int) RIGHT_SHIFT(tmp22 - tmp12, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[3] = range_limit[(int) RIGHT_SHIFT(tmp23, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + + wsptr += 7; /* advance pointer to next row */ + } +} + + +/* + * Perform dequantization and inverse DCT on one block of coefficients, + * producing a 6x12 output block. + * + * 12-point IDCT in pass 1 (columns), 6-point in pass 2 (rows). + */ + +GLOBAL(void) +jpeg_idct_6x12 (j_decompress_ptr cinfo, jpeg_component_info * compptr, + JCOEFPTR coef_block, + JSAMPARRAY output_buf, JDIMENSION output_col) +{ + INT32 tmp10, tmp11, tmp12, tmp13, tmp14, tmp15; + INT32 tmp20, tmp21, tmp22, tmp23, tmp24, tmp25; + INT32 z1, z2, z3, z4; + JCOEFPTR inptr; + ISLOW_MULT_TYPE * quantptr; + int * wsptr; + JSAMPROW outptr; + JSAMPLE *range_limit = IDCT_range_limit(cinfo); + int ctr; + int workspace[6*12]; /* buffers data between passes */ + SHIFT_TEMPS + + /* Pass 1: process columns from input, store into work array. + * 12-point IDCT kernel, cK represents sqrt(2) * cos(K*pi/24). + */ + inptr = coef_block; + quantptr = (ISLOW_MULT_TYPE *) compptr->dct_table; + wsptr = workspace; + for (ctr = 0; ctr < 6; ctr++, inptr++, quantptr++, wsptr++) { + /* Even part */ + + z3 = DEQUANTIZE(inptr[DCTSIZE*0], quantptr[DCTSIZE*0]); + z3 <<= CONST_BITS; + /* Add fudge factor here for final descale. */ + z3 += ONE << (CONST_BITS-PASS1_BITS-1); + + z4 = DEQUANTIZE(inptr[DCTSIZE*4], quantptr[DCTSIZE*4]); + z4 = MULTIPLY(z4, FIX(1.224744871)); /* c4 */ + + tmp10 = z3 + z4; + tmp11 = z3 - z4; + + z1 = DEQUANTIZE(inptr[DCTSIZE*2], quantptr[DCTSIZE*2]); + z4 = MULTIPLY(z1, FIX(1.366025404)); /* c2 */ + z1 <<= CONST_BITS; + z2 = DEQUANTIZE(inptr[DCTSIZE*6], quantptr[DCTSIZE*6]); + z2 <<= CONST_BITS; + + tmp12 = z1 - z2; + + tmp21 = z3 + tmp12; + tmp24 = z3 - tmp12; + + tmp12 = z4 + z2; + + tmp20 = tmp10 + tmp12; + tmp25 = tmp10 - tmp12; + + tmp12 = z4 - z1 - z2; + + tmp22 = tmp11 + tmp12; + tmp23 = tmp11 - tmp12; + + /* Odd part */ + + z1 = DEQUANTIZE(inptr[DCTSIZE*1], quantptr[DCTSIZE*1]); + z2 = DEQUANTIZE(inptr[DCTSIZE*3], quantptr[DCTSIZE*3]); + z3 = DEQUANTIZE(inptr[DCTSIZE*5], quantptr[DCTSIZE*5]); + z4 = DEQUANTIZE(inptr[DCTSIZE*7], quantptr[DCTSIZE*7]); + + tmp11 = MULTIPLY(z2, FIX(1.306562965)); /* c3 */ + tmp14 = MULTIPLY(z2, - FIX_0_541196100); /* -c9 */ + + tmp10 = z1 + z3; + tmp15 = MULTIPLY(tmp10 + z4, FIX(0.860918669)); /* c7 */ + tmp12 = tmp15 + MULTIPLY(tmp10, FIX(0.261052384)); /* c5-c7 */ + tmp10 = tmp12 + tmp11 + MULTIPLY(z1, FIX(0.280143716)); /* c1-c5 */ + tmp13 = MULTIPLY(z3 + z4, - FIX(1.045510580)); /* -(c7+c11) */ + tmp12 += tmp13 + tmp14 - MULTIPLY(z3, FIX(1.478575242)); /* c1+c5-c7-c11 */ + tmp13 += tmp15 - tmp11 + MULTIPLY(z4, FIX(1.586706681)); /* c1+c11 */ + tmp15 += tmp14 - MULTIPLY(z1, FIX(0.676326758)) - /* c7-c11 */ + MULTIPLY(z4, FIX(1.982889723)); /* c5+c7 */ + + z1 -= z4; + z2 -= z3; + z3 = MULTIPLY(z1 + z2, FIX_0_541196100); /* c9 */ + tmp11 = z3 + MULTIPLY(z1, FIX_0_765366865); /* c3-c9 */ + tmp14 = z3 - MULTIPLY(z2, FIX_1_847759065); /* c3+c9 */ + + /* Final output stage */ + + wsptr[6*0] = (int) RIGHT_SHIFT(tmp20 + tmp10, CONST_BITS-PASS1_BITS); + wsptr[6*11] = (int) RIGHT_SHIFT(tmp20 - tmp10, CONST_BITS-PASS1_BITS); + wsptr[6*1] = (int) RIGHT_SHIFT(tmp21 + tmp11, CONST_BITS-PASS1_BITS); + wsptr[6*10] = (int) RIGHT_SHIFT(tmp21 - tmp11, CONST_BITS-PASS1_BITS); + wsptr[6*2] = (int) RIGHT_SHIFT(tmp22 + tmp12, CONST_BITS-PASS1_BITS); + wsptr[6*9] = (int) RIGHT_SHIFT(tmp22 - tmp12, CONST_BITS-PASS1_BITS); + wsptr[6*3] = (int) RIGHT_SHIFT(tmp23 + tmp13, CONST_BITS-PASS1_BITS); + wsptr[6*8] = (int) RIGHT_SHIFT(tmp23 - tmp13, CONST_BITS-PASS1_BITS); + wsptr[6*4] = (int) RIGHT_SHIFT(tmp24 + tmp14, CONST_BITS-PASS1_BITS); + wsptr[6*7] = (int) RIGHT_SHIFT(tmp24 - tmp14, CONST_BITS-PASS1_BITS); + wsptr[6*5] = (int) RIGHT_SHIFT(tmp25 + tmp15, CONST_BITS-PASS1_BITS); + wsptr[6*6] = (int) RIGHT_SHIFT(tmp25 - tmp15, CONST_BITS-PASS1_BITS); + } + + /* Pass 2: process 12 rows from work array, store into output array. + * 6-point IDCT kernel, cK represents sqrt(2) * cos(K*pi/12). + */ + wsptr = workspace; + for (ctr = 0; ctr < 12; ctr++) { + outptr = output_buf[ctr] + output_col; + + /* Even part */ + + /* Add fudge factor here for final descale. */ + tmp10 = (INT32) wsptr[0] + (ONE << (PASS1_BITS+2)); + tmp10 <<= CONST_BITS; + tmp12 = (INT32) wsptr[4]; + tmp20 = MULTIPLY(tmp12, FIX(0.707106781)); /* c4 */ + tmp11 = tmp10 + tmp20; + tmp21 = tmp10 - tmp20 - tmp20; + tmp20 = (INT32) wsptr[2]; + tmp10 = MULTIPLY(tmp20, FIX(1.224744871)); /* c2 */ + tmp20 = tmp11 + tmp10; + tmp22 = tmp11 - tmp10; + + /* Odd part */ + + z1 = (INT32) wsptr[1]; + z2 = (INT32) wsptr[3]; + z3 = (INT32) wsptr[5]; + tmp11 = MULTIPLY(z1 + z3, FIX(0.366025404)); /* c5 */ + tmp10 = tmp11 + ((z1 + z2) << CONST_BITS); + tmp12 = tmp11 + ((z3 - z2) << CONST_BITS); + tmp11 = (z1 - z2 - z3) << CONST_BITS; + + /* Final output stage */ + + outptr[0] = range_limit[(int) RIGHT_SHIFT(tmp20 + tmp10, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[5] = range_limit[(int) RIGHT_SHIFT(tmp20 - tmp10, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[1] = range_limit[(int) RIGHT_SHIFT(tmp21 + tmp11, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[4] = range_limit[(int) RIGHT_SHIFT(tmp21 - tmp11, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[2] = range_limit[(int) RIGHT_SHIFT(tmp22 + tmp12, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[3] = range_limit[(int) RIGHT_SHIFT(tmp22 - tmp12, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + + wsptr += 6; /* advance pointer to next row */ + } +} + + +/* + * Perform dequantization and inverse DCT on one block of coefficients, + * producing a 5x10 output block. + * + * 10-point IDCT in pass 1 (columns), 5-point in pass 2 (rows). + */ + +GLOBAL(void) +jpeg_idct_5x10 (j_decompress_ptr cinfo, jpeg_component_info * compptr, + JCOEFPTR coef_block, + JSAMPARRAY output_buf, JDIMENSION output_col) +{ + INT32 tmp10, tmp11, tmp12, tmp13, tmp14; + INT32 tmp20, tmp21, tmp22, tmp23, tmp24; + INT32 z1, z2, z3, z4, z5; + JCOEFPTR inptr; + ISLOW_MULT_TYPE * quantptr; + int * wsptr; + JSAMPROW outptr; + JSAMPLE *range_limit = IDCT_range_limit(cinfo); + int ctr; + int workspace[5*10]; /* buffers data between passes */ + SHIFT_TEMPS + + /* Pass 1: process columns from input, store into work array. + * 10-point IDCT kernel, cK represents sqrt(2) * cos(K*pi/20). + */ + inptr = coef_block; + quantptr = (ISLOW_MULT_TYPE *) compptr->dct_table; + wsptr = workspace; + for (ctr = 0; ctr < 5; ctr++, inptr++, quantptr++, wsptr++) { + /* Even part */ + + z3 = DEQUANTIZE(inptr[DCTSIZE*0], quantptr[DCTSIZE*0]); + z3 <<= CONST_BITS; + /* Add fudge factor here for final descale. */ + z3 += ONE << (CONST_BITS-PASS1_BITS-1); + z4 = DEQUANTIZE(inptr[DCTSIZE*4], quantptr[DCTSIZE*4]); + z1 = MULTIPLY(z4, FIX(1.144122806)); /* c4 */ + z2 = MULTIPLY(z4, FIX(0.437016024)); /* c8 */ + tmp10 = z3 + z1; + tmp11 = z3 - z2; + + tmp22 = RIGHT_SHIFT(z3 - ((z1 - z2) << 1), /* c0 = (c4-c8)*2 */ + CONST_BITS-PASS1_BITS); + + z2 = DEQUANTIZE(inptr[DCTSIZE*2], quantptr[DCTSIZE*2]); + z3 = DEQUANTIZE(inptr[DCTSIZE*6], quantptr[DCTSIZE*6]); + + z1 = MULTIPLY(z2 + z3, FIX(0.831253876)); /* c6 */ + tmp12 = z1 + MULTIPLY(z2, FIX(0.513743148)); /* c2-c6 */ + tmp13 = z1 - MULTIPLY(z3, FIX(2.176250899)); /* c2+c6 */ + + tmp20 = tmp10 + tmp12; + tmp24 = tmp10 - tmp12; + tmp21 = tmp11 + tmp13; + tmp23 = tmp11 - tmp13; + + /* Odd part */ + + z1 = DEQUANTIZE(inptr[DCTSIZE*1], quantptr[DCTSIZE*1]); + z2 = DEQUANTIZE(inptr[DCTSIZE*3], quantptr[DCTSIZE*3]); + z3 = DEQUANTIZE(inptr[DCTSIZE*5], quantptr[DCTSIZE*5]); + z4 = DEQUANTIZE(inptr[DCTSIZE*7], quantptr[DCTSIZE*7]); + + tmp11 = z2 + z4; + tmp13 = z2 - z4; + + tmp12 = MULTIPLY(tmp13, FIX(0.309016994)); /* (c3-c7)/2 */ + z5 = z3 << CONST_BITS; + + z2 = MULTIPLY(tmp11, FIX(0.951056516)); /* (c3+c7)/2 */ + z4 = z5 + tmp12; + + tmp10 = MULTIPLY(z1, FIX(1.396802247)) + z2 + z4; /* c1 */ + tmp14 = MULTIPLY(z1, FIX(0.221231742)) - z2 + z4; /* c9 */ + + z2 = MULTIPLY(tmp11, FIX(0.587785252)); /* (c1-c9)/2 */ + z4 = z5 - tmp12 - (tmp13 << (CONST_BITS - 1)); + + tmp12 = (z1 - tmp13 - z3) << PASS1_BITS; + + tmp11 = MULTIPLY(z1, FIX(1.260073511)) - z2 - z4; /* c3 */ + tmp13 = MULTIPLY(z1, FIX(0.642039522)) - z2 + z4; /* c7 */ + + /* Final output stage */ + + wsptr[5*0] = (int) RIGHT_SHIFT(tmp20 + tmp10, CONST_BITS-PASS1_BITS); + wsptr[5*9] = (int) RIGHT_SHIFT(tmp20 - tmp10, CONST_BITS-PASS1_BITS); + wsptr[5*1] = (int) RIGHT_SHIFT(tmp21 + tmp11, CONST_BITS-PASS1_BITS); + wsptr[5*8] = (int) RIGHT_SHIFT(tmp21 - tmp11, CONST_BITS-PASS1_BITS); + wsptr[5*2] = (int) (tmp22 + tmp12); + wsptr[5*7] = (int) (tmp22 - tmp12); + wsptr[5*3] = (int) RIGHT_SHIFT(tmp23 + tmp13, CONST_BITS-PASS1_BITS); + wsptr[5*6] = (int) RIGHT_SHIFT(tmp23 - tmp13, CONST_BITS-PASS1_BITS); + wsptr[5*4] = (int) RIGHT_SHIFT(tmp24 + tmp14, CONST_BITS-PASS1_BITS); + wsptr[5*5] = (int) RIGHT_SHIFT(tmp24 - tmp14, CONST_BITS-PASS1_BITS); + } + + /* Pass 2: process 10 rows from work array, store into output array. + * 5-point IDCT kernel, cK represents sqrt(2) * cos(K*pi/10). + */ + wsptr = workspace; + for (ctr = 0; ctr < 10; ctr++) { + outptr = output_buf[ctr] + output_col; + + /* Even part */ + + /* Add fudge factor here for final descale. */ + tmp12 = (INT32) wsptr[0] + (ONE << (PASS1_BITS+2)); + tmp12 <<= CONST_BITS; + tmp13 = (INT32) wsptr[2]; + tmp14 = (INT32) wsptr[4]; + z1 = MULTIPLY(tmp13 + tmp14, FIX(0.790569415)); /* (c2+c4)/2 */ + z2 = MULTIPLY(tmp13 - tmp14, FIX(0.353553391)); /* (c2-c4)/2 */ + z3 = tmp12 + z2; + tmp10 = z3 + z1; + tmp11 = z3 - z1; + tmp12 -= z2 << 2; + + /* Odd part */ + + z2 = (INT32) wsptr[1]; + z3 = (INT32) wsptr[3]; + + z1 = MULTIPLY(z2 + z3, FIX(0.831253876)); /* c3 */ + tmp13 = z1 + MULTIPLY(z2, FIX(0.513743148)); /* c1-c3 */ + tmp14 = z1 - MULTIPLY(z3, FIX(2.176250899)); /* c1+c3 */ + + /* Final output stage */ + + outptr[0] = range_limit[(int) RIGHT_SHIFT(tmp10 + tmp13, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[4] = range_limit[(int) RIGHT_SHIFT(tmp10 - tmp13, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[1] = range_limit[(int) RIGHT_SHIFT(tmp11 + tmp14, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[3] = range_limit[(int) RIGHT_SHIFT(tmp11 - tmp14, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[2] = range_limit[(int) RIGHT_SHIFT(tmp12, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + + wsptr += 5; /* advance pointer to next row */ + } +} + + +/* + * Perform dequantization and inverse DCT on one block of coefficients, + * producing a 4x8 output block. + * + * 8-point IDCT in pass 1 (columns), 4-point in pass 2 (rows). + */ + +GLOBAL(void) +jpeg_idct_4x8 (j_decompress_ptr cinfo, jpeg_component_info * compptr, + JCOEFPTR coef_block, + JSAMPARRAY output_buf, JDIMENSION output_col) +{ + INT32 tmp0, tmp1, tmp2, tmp3; + INT32 tmp10, tmp11, tmp12, tmp13; + INT32 z1, z2, z3; + JCOEFPTR inptr; + ISLOW_MULT_TYPE * quantptr; + int * wsptr; + JSAMPROW outptr; + JSAMPLE *range_limit = IDCT_range_limit(cinfo); + int ctr; + int workspace[4*8]; /* buffers data between passes */ + SHIFT_TEMPS + + /* Pass 1: process columns from input, store into work array. */ + /* Note results are scaled up by sqrt(8) compared to a true IDCT; */ + /* furthermore, we scale the results by 2**PASS1_BITS. */ + + inptr = coef_block; + quantptr = (ISLOW_MULT_TYPE *) compptr->dct_table; + wsptr = workspace; + for (ctr = 4; ctr > 0; ctr--) { + /* Due to quantization, we will usually find that many of the input + * coefficients are zero, especially the AC terms. We can exploit this + * by short-circuiting the IDCT calculation for any column in which all + * the AC terms are zero. In that case each output is equal to the + * DC coefficient (with scale factor as needed). + * With typical images and quantization tables, half or more of the + * column DCT calculations can be simplified this way. + */ + + if (inptr[DCTSIZE*1] == 0 && inptr[DCTSIZE*2] == 0 && + inptr[DCTSIZE*3] == 0 && inptr[DCTSIZE*4] == 0 && + inptr[DCTSIZE*5] == 0 && inptr[DCTSIZE*6] == 0 && + inptr[DCTSIZE*7] == 0) { + /* AC terms all zero */ + int dcval = DEQUANTIZE(inptr[DCTSIZE*0], quantptr[DCTSIZE*0]) << PASS1_BITS; + + wsptr[4*0] = dcval; + wsptr[4*1] = dcval; + wsptr[4*2] = dcval; + wsptr[4*3] = dcval; + wsptr[4*4] = dcval; + wsptr[4*5] = dcval; + wsptr[4*6] = dcval; + wsptr[4*7] = dcval; + + inptr++; /* advance pointers to next column */ + quantptr++; + wsptr++; + continue; + } + + /* Even part: reverse the even part of the forward DCT. */ + /* The rotator is sqrt(2)*c(-6). */ + + z2 = DEQUANTIZE(inptr[DCTSIZE*2], quantptr[DCTSIZE*2]); + z3 = DEQUANTIZE(inptr[DCTSIZE*6], quantptr[DCTSIZE*6]); + + z1 = MULTIPLY(z2 + z3, FIX_0_541196100); + tmp2 = z1 + MULTIPLY(z2, FIX_0_765366865); + tmp3 = z1 - MULTIPLY(z3, FIX_1_847759065); + + z2 = DEQUANTIZE(inptr[DCTSIZE*0], quantptr[DCTSIZE*0]); + z3 = DEQUANTIZE(inptr[DCTSIZE*4], quantptr[DCTSIZE*4]); + z2 <<= CONST_BITS; + z3 <<= CONST_BITS; + /* Add fudge factor here for final descale. */ + z2 += ONE << (CONST_BITS-PASS1_BITS-1); + + tmp0 = z2 + z3; + tmp1 = z2 - z3; + + tmp10 = tmp0 + tmp2; + tmp13 = tmp0 - tmp2; + tmp11 = tmp1 + tmp3; + tmp12 = tmp1 - tmp3; + + /* Odd part per figure 8; the matrix is unitary and hence its + * transpose is its inverse. i0..i3 are y7,y5,y3,y1 respectively. + */ + + tmp0 = DEQUANTIZE(inptr[DCTSIZE*7], quantptr[DCTSIZE*7]); + tmp1 = DEQUANTIZE(inptr[DCTSIZE*5], quantptr[DCTSIZE*5]); + tmp2 = DEQUANTIZE(inptr[DCTSIZE*3], quantptr[DCTSIZE*3]); + tmp3 = DEQUANTIZE(inptr[DCTSIZE*1], quantptr[DCTSIZE*1]); + + z2 = tmp0 + tmp2; + z3 = tmp1 + tmp3; + + z1 = MULTIPLY(z2 + z3, FIX_1_175875602); /* sqrt(2) * c3 */ + z2 = MULTIPLY(z2, - FIX_1_961570560); /* sqrt(2) * (-c3-c5) */ + z3 = MULTIPLY(z3, - FIX_0_390180644); /* sqrt(2) * (c5-c3) */ + z2 += z1; + z3 += z1; + + z1 = MULTIPLY(tmp0 + tmp3, - FIX_0_899976223); /* sqrt(2) * (c7-c3) */ + tmp0 = MULTIPLY(tmp0, FIX_0_298631336); /* sqrt(2) * (-c1+c3+c5-c7) */ + tmp3 = MULTIPLY(tmp3, FIX_1_501321110); /* sqrt(2) * ( c1+c3-c5-c7) */ + tmp0 += z1 + z2; + tmp3 += z1 + z3; + + z1 = MULTIPLY(tmp1 + tmp2, - FIX_2_562915447); /* sqrt(2) * (-c1-c3) */ + tmp1 = MULTIPLY(tmp1, FIX_2_053119869); /* sqrt(2) * ( c1+c3-c5+c7) */ + tmp2 = MULTIPLY(tmp2, FIX_3_072711026); /* sqrt(2) * ( c1+c3+c5-c7) */ + tmp1 += z1 + z3; + tmp2 += z1 + z2; + + /* Final output stage: inputs are tmp10..tmp13, tmp0..tmp3 */ + + wsptr[4*0] = (int) RIGHT_SHIFT(tmp10 + tmp3, CONST_BITS-PASS1_BITS); + wsptr[4*7] = (int) RIGHT_SHIFT(tmp10 - tmp3, CONST_BITS-PASS1_BITS); + wsptr[4*1] = (int) RIGHT_SHIFT(tmp11 + tmp2, CONST_BITS-PASS1_BITS); + wsptr[4*6] = (int) RIGHT_SHIFT(tmp11 - tmp2, CONST_BITS-PASS1_BITS); + wsptr[4*2] = (int) RIGHT_SHIFT(tmp12 + tmp1, CONST_BITS-PASS1_BITS); + wsptr[4*5] = (int) RIGHT_SHIFT(tmp12 - tmp1, CONST_BITS-PASS1_BITS); + wsptr[4*3] = (int) RIGHT_SHIFT(tmp13 + tmp0, CONST_BITS-PASS1_BITS); + wsptr[4*4] = (int) RIGHT_SHIFT(tmp13 - tmp0, CONST_BITS-PASS1_BITS); + + inptr++; /* advance pointers to next column */ + quantptr++; + wsptr++; + } + + /* Pass 2: process 8 rows from work array, store into output array. + * 4-point IDCT kernel, cK represents sqrt(2) * cos(K*pi/16). + */ + wsptr = workspace; + for (ctr = 0; ctr < 8; ctr++) { + outptr = output_buf[ctr] + output_col; + + /* Even part */ + + /* Add fudge factor here for final descale. */ + tmp0 = (INT32) wsptr[0] + (ONE << (PASS1_BITS+2)); + tmp2 = (INT32) wsptr[2]; + + tmp10 = (tmp0 + tmp2) << CONST_BITS; + tmp12 = (tmp0 - tmp2) << CONST_BITS; + + /* Odd part */ + /* Same rotation as in the even part of the 8x8 LL&M IDCT */ + + z2 = (INT32) wsptr[1]; + z3 = (INT32) wsptr[3]; + + z1 = MULTIPLY(z2 + z3, FIX_0_541196100); /* c6 */ + tmp0 = z1 + MULTIPLY(z2, FIX_0_765366865); /* c2-c6 */ + tmp2 = z1 - MULTIPLY(z3, FIX_1_847759065); /* c2+c6 */ + + /* Final output stage */ + + outptr[0] = range_limit[(int) RIGHT_SHIFT(tmp10 + tmp0, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[3] = range_limit[(int) RIGHT_SHIFT(tmp10 - tmp0, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[1] = range_limit[(int) RIGHT_SHIFT(tmp12 + tmp2, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[2] = range_limit[(int) RIGHT_SHIFT(tmp12 - tmp2, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + + wsptr += 4; /* advance pointer to next row */ + } +} + + +/* + * Perform dequantization and inverse DCT on one block of coefficients, + * producing a reduced-size 3x6 output block. + * + * 6-point IDCT in pass 1 (columns), 3-point in pass 2 (rows). + */ + +GLOBAL(void) +jpeg_idct_3x6 (j_decompress_ptr cinfo, jpeg_component_info * compptr, + JCOEFPTR coef_block, + JSAMPARRAY output_buf, JDIMENSION output_col) +{ + INT32 tmp0, tmp1, tmp2, tmp10, tmp11, tmp12; + INT32 z1, z2, z3; + JCOEFPTR inptr; + ISLOW_MULT_TYPE * quantptr; + int * wsptr; + JSAMPROW outptr; + JSAMPLE *range_limit = IDCT_range_limit(cinfo); + int ctr; + int workspace[3*6]; /* buffers data between passes */ + SHIFT_TEMPS + + /* Pass 1: process columns from input, store into work array. + * 6-point IDCT kernel, cK represents sqrt(2) * cos(K*pi/12). + */ + inptr = coef_block; + quantptr = (ISLOW_MULT_TYPE *) compptr->dct_table; + wsptr = workspace; + for (ctr = 0; ctr < 3; ctr++, inptr++, quantptr++, wsptr++) { + /* Even part */ + + tmp0 = DEQUANTIZE(inptr[DCTSIZE*0], quantptr[DCTSIZE*0]); + tmp0 <<= CONST_BITS; + /* Add fudge factor here for final descale. */ + tmp0 += ONE << (CONST_BITS-PASS1_BITS-1); + tmp2 = DEQUANTIZE(inptr[DCTSIZE*4], quantptr[DCTSIZE*4]); + tmp10 = MULTIPLY(tmp2, FIX(0.707106781)); /* c4 */ + tmp1 = tmp0 + tmp10; + tmp11 = RIGHT_SHIFT(tmp0 - tmp10 - tmp10, CONST_BITS-PASS1_BITS); + tmp10 = DEQUANTIZE(inptr[DCTSIZE*2], quantptr[DCTSIZE*2]); + tmp0 = MULTIPLY(tmp10, FIX(1.224744871)); /* c2 */ + tmp10 = tmp1 + tmp0; + tmp12 = tmp1 - tmp0; + + /* Odd part */ + + z1 = DEQUANTIZE(inptr[DCTSIZE*1], quantptr[DCTSIZE*1]); + z2 = DEQUANTIZE(inptr[DCTSIZE*3], quantptr[DCTSIZE*3]); + z3 = DEQUANTIZE(inptr[DCTSIZE*5], quantptr[DCTSIZE*5]); + tmp1 = MULTIPLY(z1 + z3, FIX(0.366025404)); /* c5 */ + tmp0 = tmp1 + ((z1 + z2) << CONST_BITS); + tmp2 = tmp1 + ((z3 - z2) << CONST_BITS); + tmp1 = (z1 - z2 - z3) << PASS1_BITS; + + /* Final output stage */ + + wsptr[3*0] = (int) RIGHT_SHIFT(tmp10 + tmp0, CONST_BITS-PASS1_BITS); + wsptr[3*5] = (int) RIGHT_SHIFT(tmp10 - tmp0, CONST_BITS-PASS1_BITS); + wsptr[3*1] = (int) (tmp11 + tmp1); + wsptr[3*4] = (int) (tmp11 - tmp1); + wsptr[3*2] = (int) RIGHT_SHIFT(tmp12 + tmp2, CONST_BITS-PASS1_BITS); + wsptr[3*3] = (int) RIGHT_SHIFT(tmp12 - tmp2, CONST_BITS-PASS1_BITS); + } + + /* Pass 2: process 6 rows from work array, store into output array. + * 3-point IDCT kernel, cK represents sqrt(2) * cos(K*pi/6). + */ + wsptr = workspace; + for (ctr = 0; ctr < 6; ctr++) { + outptr = output_buf[ctr] + output_col; + + /* Even part */ + + /* Add fudge factor here for final descale. */ + tmp0 = (INT32) wsptr[0] + (ONE << (PASS1_BITS+2)); + tmp0 <<= CONST_BITS; + tmp2 = (INT32) wsptr[2]; + tmp12 = MULTIPLY(tmp2, FIX(0.707106781)); /* c2 */ + tmp10 = tmp0 + tmp12; + tmp2 = tmp0 - tmp12 - tmp12; + + /* Odd part */ + + tmp12 = (INT32) wsptr[1]; + tmp0 = MULTIPLY(tmp12, FIX(1.224744871)); /* c1 */ + + /* Final output stage */ + + outptr[0] = range_limit[(int) RIGHT_SHIFT(tmp10 + tmp0, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[2] = range_limit[(int) RIGHT_SHIFT(tmp10 - tmp0, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + outptr[1] = range_limit[(int) RIGHT_SHIFT(tmp2, + CONST_BITS+PASS1_BITS+3) + & RANGE_MASK]; + + wsptr += 3; /* advance pointer to next row */ + } +} + + +/* + * Perform dequantization and inverse DCT on one block of coefficients, + * producing a 2x4 output block. + * + * 4-point IDCT in pass 1 (columns), 2-point in pass 2 (rows). + */ + +GLOBAL(void) +jpeg_idct_2x4 (j_decompress_ptr cinfo, jpeg_component_info * compptr, + JCOEFPTR coef_block, + JSAMPARRAY output_buf, JDIMENSION output_col) +{ + INT32 tmp0, tmp2, tmp10, tmp12; + INT32 z1, z2, z3; + JCOEFPTR inptr; + ISLOW_MULT_TYPE * quantptr; + INT32 * wsptr; + JSAMPROW outptr; + JSAMPLE *range_limit = IDCT_range_limit(cinfo); + int ctr; + INT32 workspace[2*4]; /* buffers data between passes */ + SHIFT_TEMPS + + /* Pass 1: process columns from input, store into work array. + * 4-point IDCT kernel, + * cK represents sqrt(2) * cos(K*pi/16) [refers to 8-point IDCT]. + */ + inptr = coef_block; + quantptr = (ISLOW_MULT_TYPE *) compptr->dct_table; + wsptr = workspace; + for (ctr = 0; ctr < 2; ctr++, inptr++, quantptr++, wsptr++) { + /* Even part */ + + tmp0 = DEQUANTIZE(inptr[DCTSIZE*0], quantptr[DCTSIZE*0]); + tmp2 = DEQUANTIZE(inptr[DCTSIZE*2], quantptr[DCTSIZE*2]); + + tmp10 = (tmp0 + tmp2) << CONST_BITS; + tmp12 = (tmp0 - tmp2) << CONST_BITS; + + /* Odd part */ + /* Same rotation as in the even part of the 8x8 LL&M IDCT */ + + z2 = DEQUANTIZE(inptr[DCTSIZE*1], quantptr[DCTSIZE*1]); + z3 = DEQUANTIZE(inptr[DCTSIZE*3], quantptr[DCTSIZE*3]); + + z1 = MULTIPLY(z2 + z3, FIX_0_541196100); /* c6 */ + tmp0 = z1 + MULTIPLY(z2, FIX_0_765366865); /* c2-c6 */ + tmp2 = z1 - MULTIPLY(z3, FIX_1_847759065); /* c2+c6 */ + + /* Final output stage */ + + wsptr[2*0] = tmp10 + tmp0; + wsptr[2*3] = tmp10 - tmp0; + wsptr[2*1] = tmp12 + tmp2; + wsptr[2*2] = tmp12 - tmp2; + } + + /* Pass 2: process 4 rows from work array, store into output array. */ + + wsptr = workspace; + for (ctr = 0; ctr < 4; ctr++) { + outptr = output_buf[ctr] + output_col; + + /* Even part */ + + /* Add fudge factor here for final descale. */ + tmp10 = wsptr[0] + (ONE << (CONST_BITS+2)); + + /* Odd part */ + + tmp0 = wsptr[1]; + + /* Final output stage */ + + outptr[0] = range_limit[(int) RIGHT_SHIFT(tmp10 + tmp0, CONST_BITS+3) + & RANGE_MASK]; + outptr[1] = range_limit[(int) RIGHT_SHIFT(tmp10 - tmp0, CONST_BITS+3) + & RANGE_MASK]; + + wsptr += 2; /* advance pointer to next row */ + } +} + + +/* + * Perform dequantization and inverse DCT on one block of coefficients, + * producing a 1x2 output block. + * + * 2-point IDCT in pass 1 (columns), 1-point in pass 2 (rows). + */ + +GLOBAL(void) +jpeg_idct_1x2 (j_decompress_ptr cinfo, jpeg_component_info * compptr, + JCOEFPTR coef_block, + JSAMPARRAY output_buf, JDIMENSION output_col) +{ + INT32 tmp0, tmp10; + ISLOW_MULT_TYPE * quantptr; + JSAMPLE *range_limit = IDCT_range_limit(cinfo); + SHIFT_TEMPS + + /* Process 1 column from input, store into output array. */ + + quantptr = (ISLOW_MULT_TYPE *) compptr->dct_table; + + /* Even part */ + + tmp10 = DEQUANTIZE(coef_block[DCTSIZE*0], quantptr[DCTSIZE*0]); + /* Add fudge factor here for final descale. */ + tmp10 += ONE << 2; + + /* Odd part */ + + tmp0 = DEQUANTIZE(coef_block[DCTSIZE*1], quantptr[DCTSIZE*1]); + + /* Final output stage */ + + output_buf[0][output_col] = range_limit[(int) RIGHT_SHIFT(tmp10 + tmp0, 3) + & RANGE_MASK]; + output_buf[1][output_col] = range_limit[(int) RIGHT_SHIFT(tmp10 - tmp0, 3) + & RANGE_MASK]; +} + +#endif /* IDCT_SCALING_SUPPORTED */ +#endif /* DCT_ISLOW_SUPPORTED */ diff --git a/jpeg/jinclude.h b/jpeg/jinclude.h new file mode 100644 index 0000000..0a4f151 --- /dev/null +++ b/jpeg/jinclude.h @@ -0,0 +1,91 @@ +/* + * jinclude.h + * + * Copyright (C) 1991-1994, Thomas G. Lane. + * This file is part of the Independent JPEG Group's software. + * For conditions of distribution and use, see the accompanying README file. + * + * This file exists to provide a single place to fix any problems with + * including the wrong system include files. (Common problems are taken + * care of by the standard jconfig symbols, but on really weird systems + * you may have to edit this file.) + * + * NOTE: this file is NOT intended to be included by applications using the + * JPEG library. Most applications need only include jpeglib.h. + */ + + +/* Include auto-config file to find out which system include files we need. */ + +#include "jconfig.h" /* auto configuration options */ +#define JCONFIG_INCLUDED /* so that jpeglib.h doesn't do it again */ + +/* + * We need the NULL macro and size_t typedef. + * On an ANSI-conforming system it is sufficient to include . + * Otherwise, we get them from or ; we may have to + * pull in as well. + * Note that the core JPEG library does not require ; + * only the default error handler and data source/destination modules do. + * But we must pull it in because of the references to FILE in jpeglib.h. + * You can remove those references if you want to compile without . + */ + +#ifdef HAVE_STDDEF_H +#include +#endif + +#ifdef HAVE_STDLIB_H +#include +#endif + +#ifdef NEED_SYS_TYPES_H +#include +#endif + +#include + +/* + * We need memory copying and zeroing functions, plus strncpy(). + * ANSI and System V implementations declare these in . + * BSD doesn't have the mem() functions, but it does have bcopy()/bzero(). + * Some systems may declare memset and memcpy in . + * + * NOTE: we assume the size parameters to these functions are of type size_t. + * Change the casts in these macros if not! + */ + +#ifdef NEED_BSD_STRINGS + +#include +#define MEMZERO(target,size) bzero((void *)(target), (size_t)(size)) +#define MEMCOPY(dest,src,size) bcopy((const void *)(src), (void *)(dest), (size_t)(size)) + +#else /* not BSD, assume ANSI/SysV string lib */ + +#include +#define MEMZERO(target,size) memset((void *)(target), 0, (size_t)(size)) +#define MEMCOPY(dest,src,size) memcpy((void *)(dest), (const void *)(src), (size_t)(size)) + +#endif + +/* + * In ANSI C, and indeed any rational implementation, size_t is also the + * type returned by sizeof(). However, it seems there are some irrational + * implementations out there, in which sizeof() returns an int even though + * size_t is defined as long or unsigned long. To ensure consistent results + * we always use this SIZEOF() macro in place of using sizeof() directly. + */ + +#define SIZEOF(object) ((size_t) sizeof(object)) + +/* + * The modules that use fread() and fwrite() always invoke them through + * these macros. On some systems you may need to twiddle the argument casts. + * CAUTION: argument order is different from underlying functions! + */ + +#define JFREAD(file,buf,sizeofbuf) \ + ((size_t) fread((void *) (buf), (size_t) 1, (size_t) (sizeofbuf), (file))) +#define JFWRITE(file,buf,sizeofbuf) \ + ((size_t) fwrite((const void *) (buf), (size_t) 1, (size_t) (sizeofbuf), (file))) diff --git a/jpeg/jmemansi.c b/jpeg/jmemansi.c new file mode 100644 index 0000000..2d93e49 --- /dev/null +++ b/jpeg/jmemansi.c @@ -0,0 +1,167 @@ +/* + * jmemansi.c + * + * Copyright (C) 1992-1996, Thomas G. Lane. + * This file is part of the Independent JPEG Group's software. + * For conditions of distribution and use, see the accompanying README file. + * + * This file provides a simple generic implementation of the system- + * dependent portion of the JPEG memory manager. This implementation + * assumes that you have the ANSI-standard library routine tmpfile(). + * Also, the problem of determining the amount of memory available + * is shoved onto the user. + */ + +#define JPEG_INTERNALS +#include "jinclude.h" +#include "jpeglib.h" +#include "jmemsys.h" /* import the system-dependent declarations */ + +#ifndef HAVE_STDLIB_H /* should declare malloc(),free() */ +extern void * malloc JPP((size_t size)); +extern void free JPP((void *ptr)); +#endif + +#ifndef SEEK_SET /* pre-ANSI systems may not define this; */ +#define SEEK_SET 0 /* if not, assume 0 is correct */ +#endif + + +/* + * Memory allocation and freeing are controlled by the regular library + * routines malloc() and free(). + */ + +GLOBAL(void *) +jpeg_get_small (j_common_ptr cinfo, size_t sizeofobject) +{ + return (void *) malloc(sizeofobject); +} + +GLOBAL(void) +jpeg_free_small (j_common_ptr cinfo, void * object, size_t sizeofobject) +{ + free(object); +} + + +/* + * "Large" objects are treated the same as "small" ones. + * NB: although we include FAR keywords in the routine declarations, + * this file won't actually work in 80x86 small/medium model; at least, + * you probably won't be able to process useful-size images in only 64KB. + */ + +GLOBAL(void FAR *) +jpeg_get_large (j_common_ptr cinfo, size_t sizeofobject) +{ + return (void FAR *) malloc(sizeofobject); +} + +GLOBAL(void) +jpeg_free_large (j_common_ptr cinfo, void FAR * object, size_t sizeofobject) +{ + free(object); +} + + +/* + * This routine computes the total memory space available for allocation. + * It's impossible to do this in a portable way; our current solution is + * to make the user tell us (with a default value set at compile time). + * If you can actually get the available space, it's a good idea to subtract + * a slop factor of 5% or so. + */ + +#ifndef DEFAULT_MAX_MEM /* so can override from makefile */ +#define DEFAULT_MAX_MEM 1000000L /* default: one megabyte */ +#endif + +GLOBAL(long) +jpeg_mem_available (j_common_ptr cinfo, long min_bytes_needed, + long max_bytes_needed, long already_allocated) +{ + return cinfo->mem->max_memory_to_use - already_allocated; +} + + +/* + * Backing store (temporary file) management. + * Backing store objects are only used when the value returned by + * jpeg_mem_available is less than the total space needed. You can dispense + * with these routines if you have plenty of virtual memory; see jmemnobs.c. + */ + + +METHODDEF(void) +read_backing_store (j_common_ptr cinfo, backing_store_ptr info, + void FAR * buffer_address, + long file_offset, long byte_count) +{ + if (fseek(info->temp_file, file_offset, SEEK_SET)) + ERREXIT(cinfo, JERR_TFILE_SEEK); + if (JFREAD(info->temp_file, buffer_address, byte_count) + != (size_t) byte_count) + ERREXIT(cinfo, JERR_TFILE_READ); +} + + +METHODDEF(void) +write_backing_store (j_common_ptr cinfo, backing_store_ptr info, + void FAR * buffer_address, + long file_offset, long byte_count) +{ + if (fseek(info->temp_file, file_offset, SEEK_SET)) + ERREXIT(cinfo, JERR_TFILE_SEEK); + if (JFWRITE(info->temp_file, buffer_address, byte_count) + != (size_t) byte_count) + ERREXIT(cinfo, JERR_TFILE_WRITE); +} + + +METHODDEF(void) +close_backing_store (j_common_ptr cinfo, backing_store_ptr info) +{ + fclose(info->temp_file); + /* Since this implementation uses tmpfile() to create the file, + * no explicit file deletion is needed. + */ +} + + +/* + * Initial opening of a backing-store object. + * + * This version uses tmpfile(), which constructs a suitable file name + * behind the scenes. We don't have to use info->temp_name[] at all; + * indeed, we can't even find out the actual name of the temp file. + */ + +GLOBAL(void) +jpeg_open_backing_store (j_common_ptr cinfo, backing_store_ptr info, + long total_bytes_needed) +{ + if ((info->temp_file = tmpfile()) == NULL) + ERREXITS(cinfo, JERR_TFILE_CREATE, ""); + info->read_backing_store = read_backing_store; + info->write_backing_store = write_backing_store; + info->close_backing_store = close_backing_store; +} + + +/* + * These routines take care of any system-dependent initialization and + * cleanup required. + */ + +GLOBAL(long) +jpeg_mem_init (j_common_ptr cinfo) +{ + return DEFAULT_MAX_MEM; /* default for max_memory_to_use */ +} + +GLOBAL(void) +jpeg_mem_term (j_common_ptr cinfo) +{ + /* no work */ +} diff --git a/jpeg/jmemdos.c b/jpeg/jmemdos.c new file mode 100644 index 0000000..60b45c6 --- /dev/null +++ b/jpeg/jmemdos.c @@ -0,0 +1,638 @@ +/* + * jmemdos.c + * + * Copyright (C) 1992-1997, Thomas G. Lane. + * This file is part of the Independent JPEG Group's software. + * For conditions of distribution and use, see the accompanying README file. + * + * This file provides an MS-DOS-compatible implementation of the system- + * dependent portion of the JPEG memory manager. Temporary data can be + * stored in extended or expanded memory as well as in regular DOS files. + * + * If you use this file, you must be sure that NEED_FAR_POINTERS is defined + * if you compile in a small-data memory model; it should NOT be defined if + * you use a large-data memory model. This file is not recommended if you + * are using a flat-memory-space 386 environment such as DJGCC or Watcom C. + * Also, this code will NOT work if struct fields are aligned on greater than + * 2-byte boundaries. + * + * Based on code contributed by Ge' Weijers. + */ + +/* + * If you have both extended and expanded memory, you may want to change the + * order in which they are tried in jopen_backing_store. On a 286 machine + * expanded memory is usually faster, since extended memory access involves + * an expensive protected-mode-and-back switch. On 386 and better, extended + * memory is usually faster. As distributed, the code tries extended memory + * first (what? not everyone has a 386? :-). + * + * You can disable use of extended/expanded memory entirely by altering these + * definitions or overriding them from the Makefile (eg, -DEMS_SUPPORTED=0). + */ + +#ifndef XMS_SUPPORTED +#define XMS_SUPPORTED 1 +#endif +#ifndef EMS_SUPPORTED +#define EMS_SUPPORTED 1 +#endif + + +#define JPEG_INTERNALS +#include "jinclude.h" +#include "jpeglib.h" +#include "jmemsys.h" /* import the system-dependent declarations */ + +#ifndef HAVE_STDLIB_H /* should declare these */ +extern void * malloc JPP((size_t size)); +extern void free JPP((void *ptr)); +extern char * getenv JPP((const char * name)); +#endif + +#ifdef NEED_FAR_POINTERS + +#ifdef __TURBOC__ +/* These definitions work for Borland C (Turbo C) */ +#include /* need farmalloc(), farfree() */ +#define far_malloc(x) farmalloc(x) +#define far_free(x) farfree(x) +#else +/* These definitions work for Microsoft C and compatible compilers */ +#include /* need _fmalloc(), _ffree() */ +#define far_malloc(x) _fmalloc(x) +#define far_free(x) _ffree(x) +#endif + +#else /* not NEED_FAR_POINTERS */ + +#define far_malloc(x) malloc(x) +#define far_free(x) free(x) + +#endif /* NEED_FAR_POINTERS */ + +#ifdef DONT_USE_B_MODE /* define mode parameters for fopen() */ +#define READ_BINARY "r" +#else +#define READ_BINARY "rb" +#endif + +#ifndef USE_MSDOS_MEMMGR /* make sure user got configuration right */ + You forgot to define USE_MSDOS_MEMMGR in jconfig.h. /* deliberate syntax error */ +#endif + +#if MAX_ALLOC_CHUNK >= 65535L /* make sure jconfig.h got this right */ + MAX_ALLOC_CHUNK should be less than 64K. /* deliberate syntax error */ +#endif + + +/* + * Declarations for assembly-language support routines (see jmemdosa.asm). + * + * The functions are declared "far" as are all their pointer arguments; + * this ensures the assembly source code will work regardless of the + * compiler memory model. We assume "short" is 16 bits, "long" is 32. + */ + +typedef void far * XMSDRIVER; /* actually a pointer to code */ +typedef struct { /* registers for calling XMS driver */ + unsigned short ax, dx, bx; + void far * ds_si; + } XMScontext; +typedef struct { /* registers for calling EMS driver */ + unsigned short ax, dx, bx; + void far * ds_si; + } EMScontext; + +extern short far jdos_open JPP((short far * handle, char far * filename)); +extern short far jdos_close JPP((short handle)); +extern short far jdos_seek JPP((short handle, long offset)); +extern short far jdos_read JPP((short handle, void far * buffer, + unsigned short count)); +extern short far jdos_write JPP((short handle, void far * buffer, + unsigned short count)); +extern void far jxms_getdriver JPP((XMSDRIVER far *)); +extern void far jxms_calldriver JPP((XMSDRIVER, XMScontext far *)); +extern short far jems_available JPP((void)); +extern void far jems_calldriver JPP((EMScontext far *)); + + +/* + * Selection of a file name for a temporary file. + * This is highly system-dependent, and you may want to customize it. + */ + +static int next_file_num; /* to distinguish among several temp files */ + +LOCAL(void) +select_file_name (char * fname) +{ + const char * env; + char * ptr; + FILE * tfile; + + /* Keep generating file names till we find one that's not in use */ + for (;;) { + /* Get temp directory name from environment TMP or TEMP variable; + * if none, use "." + */ + if ((env = (const char *) getenv("TMP")) == NULL) + if ((env = (const char *) getenv("TEMP")) == NULL) + env = "."; + if (*env == '\0') /* null string means "." */ + env = "."; + ptr = fname; /* copy name to fname */ + while (*env != '\0') + *ptr++ = *env++; + if (ptr[-1] != '\\' && ptr[-1] != '/') + *ptr++ = '\\'; /* append backslash if not in env variable */ + /* Append a suitable file name */ + next_file_num++; /* advance counter */ + sprintf(ptr, "JPG%03d.TMP", next_file_num); + /* Probe to see if file name is already in use */ + if ((tfile = fopen(fname, READ_BINARY)) == NULL) + break; + fclose(tfile); /* oops, it's there; close tfile & try again */ + } +} + + +/* + * Near-memory allocation and freeing are controlled by the regular library + * routines malloc() and free(). + */ + +GLOBAL(void *) +jpeg_get_small (j_common_ptr cinfo, size_t sizeofobject) +{ + return (void *) malloc(sizeofobject); +} + +GLOBAL(void) +jpeg_free_small (j_common_ptr cinfo, void * object, size_t sizeofobject) +{ + free(object); +} + + +/* + * "Large" objects are allocated in far memory, if possible + */ + +GLOBAL(void FAR *) +jpeg_get_large (j_common_ptr cinfo, size_t sizeofobject) +{ + return (void FAR *) far_malloc(sizeofobject); +} + +GLOBAL(void) +jpeg_free_large (j_common_ptr cinfo, void FAR * object, size_t sizeofobject) +{ + far_free(object); +} + + +/* + * This routine computes the total memory space available for allocation. + * It's impossible to do this in a portable way; our current solution is + * to make the user tell us (with a default value set at compile time). + * If you can actually get the available space, it's a good idea to subtract + * a slop factor of 5% or so. + */ + +#ifndef DEFAULT_MAX_MEM /* so can override from makefile */ +#define DEFAULT_MAX_MEM 300000L /* for total usage about 450K */ +#endif + +GLOBAL(long) +jpeg_mem_available (j_common_ptr cinfo, long min_bytes_needed, + long max_bytes_needed, long already_allocated) +{ + return cinfo->mem->max_memory_to_use - already_allocated; +} + + +/* + * Backing store (temporary file) management. + * Backing store objects are only used when the value returned by + * jpeg_mem_available is less than the total space needed. You can dispense + * with these routines if you have plenty of virtual memory; see jmemnobs.c. + */ + +/* + * For MS-DOS we support three types of backing storage: + * 1. Conventional DOS files. We access these by direct DOS calls rather + * than via the stdio package. This provides a bit better performance, + * but the real reason is that the buffers to be read or written are FAR. + * The stdio library for small-data memory models can't cope with that. + * 2. Extended memory, accessed per the XMS V2.0 specification. + * 3. Expanded memory, accessed per the LIM/EMS 4.0 specification. + * You'll need copies of those specs to make sense of the related code. + * The specs are available by Internet FTP from the SIMTEL archives + * (oak.oakland.edu and its various mirror sites). See files + * pub/msdos/microsoft/xms20.arc and pub/msdos/info/limems41.zip. + */ + + +/* + * Access methods for a DOS file. + */ + + +METHODDEF(void) +read_file_store (j_common_ptr cinfo, backing_store_ptr info, + void FAR * buffer_address, + long file_offset, long byte_count) +{ + if (jdos_seek(info->handle.file_handle, file_offset)) + ERREXIT(cinfo, JERR_TFILE_SEEK); + /* Since MAX_ALLOC_CHUNK is less than 64K, byte_count will be too. */ + if (byte_count > 65535L) /* safety check */ + ERREXIT(cinfo, JERR_BAD_ALLOC_CHUNK); + if (jdos_read(info->handle.file_handle, buffer_address, + (unsigned short) byte_count)) + ERREXIT(cinfo, JERR_TFILE_READ); +} + + +METHODDEF(void) +write_file_store (j_common_ptr cinfo, backing_store_ptr info, + void FAR * buffer_address, + long file_offset, long byte_count) +{ + if (jdos_seek(info->handle.file_handle, file_offset)) + ERREXIT(cinfo, JERR_TFILE_SEEK); + /* Since MAX_ALLOC_CHUNK is less than 64K, byte_count will be too. */ + if (byte_count > 65535L) /* safety check */ + ERREXIT(cinfo, JERR_BAD_ALLOC_CHUNK); + if (jdos_write(info->handle.file_handle, buffer_address, + (unsigned short) byte_count)) + ERREXIT(cinfo, JERR_TFILE_WRITE); +} + + +METHODDEF(void) +close_file_store (j_common_ptr cinfo, backing_store_ptr info) +{ + jdos_close(info->handle.file_handle); /* close the file */ + remove(info->temp_name); /* delete the file */ +/* If your system doesn't have remove(), try unlink() instead. + * remove() is the ANSI-standard name for this function, but + * unlink() was more common in pre-ANSI systems. + */ + TRACEMSS(cinfo, 1, JTRC_TFILE_CLOSE, info->temp_name); +} + + +LOCAL(boolean) +open_file_store (j_common_ptr cinfo, backing_store_ptr info, + long total_bytes_needed) +{ + short handle; + + select_file_name(info->temp_name); + if (jdos_open((short far *) & handle, (char far *) info->temp_name)) { + /* might as well exit since jpeg_open_backing_store will fail anyway */ + ERREXITS(cinfo, JERR_TFILE_CREATE, info->temp_name); + return FALSE; + } + info->handle.file_handle = handle; + info->read_backing_store = read_file_store; + info->write_backing_store = write_file_store; + info->close_backing_store = close_file_store; + TRACEMSS(cinfo, 1, JTRC_TFILE_OPEN, info->temp_name); + return TRUE; /* succeeded */ +} + + +/* + * Access methods for extended memory. + */ + +#if XMS_SUPPORTED + +static XMSDRIVER xms_driver; /* saved address of XMS driver */ + +typedef union { /* either long offset or real-mode pointer */ + long offset; + void far * ptr; + } XMSPTR; + +typedef struct { /* XMS move specification structure */ + long length; + XMSH src_handle; + XMSPTR src; + XMSH dst_handle; + XMSPTR dst; + } XMSspec; + +#define ODD(X) (((X) & 1L) != 0) + + +METHODDEF(void) +read_xms_store (j_common_ptr cinfo, backing_store_ptr info, + void FAR * buffer_address, + long file_offset, long byte_count) +{ + XMScontext ctx; + XMSspec spec; + char endbuffer[2]; + + /* The XMS driver can't cope with an odd length, so handle the last byte + * specially if byte_count is odd. We don't expect this to be common. + */ + + spec.length = byte_count & (~ 1L); + spec.src_handle = info->handle.xms_handle; + spec.src.offset = file_offset; + spec.dst_handle = 0; + spec.dst.ptr = buffer_address; + + ctx.ds_si = (void far *) & spec; + ctx.ax = 0x0b00; /* EMB move */ + jxms_calldriver(xms_driver, (XMScontext far *) & ctx); + if (ctx.ax != 1) + ERREXIT(cinfo, JERR_XMS_READ); + + if (ODD(byte_count)) { + read_xms_store(cinfo, info, (void FAR *) endbuffer, + file_offset + byte_count - 1L, 2L); + ((char FAR *) buffer_address)[byte_count - 1L] = endbuffer[0]; + } +} + + +METHODDEF(void) +write_xms_store (j_common_ptr cinfo, backing_store_ptr info, + void FAR * buffer_address, + long file_offset, long byte_count) +{ + XMScontext ctx; + XMSspec spec; + char endbuffer[2]; + + /* The XMS driver can't cope with an odd length, so handle the last byte + * specially if byte_count is odd. We don't expect this to be common. + */ + + spec.length = byte_count & (~ 1L); + spec.src_handle = 0; + spec.src.ptr = buffer_address; + spec.dst_handle = info->handle.xms_handle; + spec.dst.offset = file_offset; + + ctx.ds_si = (void far *) & spec; + ctx.ax = 0x0b00; /* EMB move */ + jxms_calldriver(xms_driver, (XMScontext far *) & ctx); + if (ctx.ax != 1) + ERREXIT(cinfo, JERR_XMS_WRITE); + + if (ODD(byte_count)) { + read_xms_store(cinfo, info, (void FAR *) endbuffer, + file_offset + byte_count - 1L, 2L); + endbuffer[0] = ((char FAR *) buffer_address)[byte_count - 1L]; + write_xms_store(cinfo, info, (void FAR *) endbuffer, + file_offset + byte_count - 1L, 2L); + } +} + + +METHODDEF(void) +close_xms_store (j_common_ptr cinfo, backing_store_ptr info) +{ + XMScontext ctx; + + ctx.dx = info->handle.xms_handle; + ctx.ax = 0x0a00; + jxms_calldriver(xms_driver, (XMScontext far *) & ctx); + TRACEMS1(cinfo, 1, JTRC_XMS_CLOSE, info->handle.xms_handle); + /* we ignore any error return from the driver */ +} + + +LOCAL(boolean) +open_xms_store (j_common_ptr cinfo, backing_store_ptr info, + long total_bytes_needed) +{ + XMScontext ctx; + + /* Get address of XMS driver */ + jxms_getdriver((XMSDRIVER far *) & xms_driver); + if (xms_driver == NULL) + return FALSE; /* no driver to be had */ + + /* Get version number, must be >= 2.00 */ + ctx.ax = 0x0000; + jxms_calldriver(xms_driver, (XMScontext far *) & ctx); + if (ctx.ax < (unsigned short) 0x0200) + return FALSE; + + /* Try to get space (expressed in kilobytes) */ + ctx.dx = (unsigned short) ((total_bytes_needed + 1023L) >> 10); + ctx.ax = 0x0900; + jxms_calldriver(xms_driver, (XMScontext far *) & ctx); + if (ctx.ax != 1) + return FALSE; + + /* Succeeded, save the handle and away we go */ + info->handle.xms_handle = ctx.dx; + info->read_backing_store = read_xms_store; + info->write_backing_store = write_xms_store; + info->close_backing_store = close_xms_store; + TRACEMS1(cinfo, 1, JTRC_XMS_OPEN, ctx.dx); + return TRUE; /* succeeded */ +} + +#endif /* XMS_SUPPORTED */ + + +/* + * Access methods for expanded memory. + */ + +#if EMS_SUPPORTED + +/* The EMS move specification structure requires word and long fields aligned + * at odd byte boundaries. Some compilers will align struct fields at even + * byte boundaries. While it's usually possible to force byte alignment, + * that causes an overall performance penalty and may pose problems in merging + * JPEG into a larger application. Instead we accept some rather dirty code + * here. Note this code would fail if the hardware did not allow odd-byte + * word & long accesses, but all 80x86 CPUs do. + */ + +typedef void far * EMSPTR; + +typedef union { /* EMS move specification structure */ + long length; /* It's easy to access first 4 bytes */ + char bytes[18]; /* Misaligned fields in here! */ + } EMSspec; + +/* Macros for accessing misaligned fields */ +#define FIELD_AT(spec,offset,type) (*((type *) &(spec.bytes[offset]))) +#define SRC_TYPE(spec) FIELD_AT(spec,4,char) +#define SRC_HANDLE(spec) FIELD_AT(spec,5,EMSH) +#define SRC_OFFSET(spec) FIELD_AT(spec,7,unsigned short) +#define SRC_PAGE(spec) FIELD_AT(spec,9,unsigned short) +#define SRC_PTR(spec) FIELD_AT(spec,7,EMSPTR) +#define DST_TYPE(spec) FIELD_AT(spec,11,char) +#define DST_HANDLE(spec) FIELD_AT(spec,12,EMSH) +#define DST_OFFSET(spec) FIELD_AT(spec,14,unsigned short) +#define DST_PAGE(spec) FIELD_AT(spec,16,unsigned short) +#define DST_PTR(spec) FIELD_AT(spec,14,EMSPTR) + +#define EMSPAGESIZE 16384L /* gospel, see the EMS specs */ + +#define HIBYTE(W) (((W) >> 8) & 0xFF) +#define LOBYTE(W) ((W) & 0xFF) + + +METHODDEF(void) +read_ems_store (j_common_ptr cinfo, backing_store_ptr info, + void FAR * buffer_address, + long file_offset, long byte_count) +{ + EMScontext ctx; + EMSspec spec; + + spec.length = byte_count; + SRC_TYPE(spec) = 1; + SRC_HANDLE(spec) = info->handle.ems_handle; + SRC_PAGE(spec) = (unsigned short) (file_offset / EMSPAGESIZE); + SRC_OFFSET(spec) = (unsigned short) (file_offset % EMSPAGESIZE); + DST_TYPE(spec) = 0; + DST_HANDLE(spec) = 0; + DST_PTR(spec) = buffer_address; + + ctx.ds_si = (void far *) & spec; + ctx.ax = 0x5700; /* move memory region */ + jems_calldriver((EMScontext far *) & ctx); + if (HIBYTE(ctx.ax) != 0) + ERREXIT(cinfo, JERR_EMS_READ); +} + + +METHODDEF(void) +write_ems_store (j_common_ptr cinfo, backing_store_ptr info, + void FAR * buffer_address, + long file_offset, long byte_count) +{ + EMScontext ctx; + EMSspec spec; + + spec.length = byte_count; + SRC_TYPE(spec) = 0; + SRC_HANDLE(spec) = 0; + SRC_PTR(spec) = buffer_address; + DST_TYPE(spec) = 1; + DST_HANDLE(spec) = info->handle.ems_handle; + DST_PAGE(spec) = (unsigned short) (file_offset / EMSPAGESIZE); + DST_OFFSET(spec) = (unsigned short) (file_offset % EMSPAGESIZE); + + ctx.ds_si = (void far *) & spec; + ctx.ax = 0x5700; /* move memory region */ + jems_calldriver((EMScontext far *) & ctx); + if (HIBYTE(ctx.ax) != 0) + ERREXIT(cinfo, JERR_EMS_WRITE); +} + + +METHODDEF(void) +close_ems_store (j_common_ptr cinfo, backing_store_ptr info) +{ + EMScontext ctx; + + ctx.ax = 0x4500; + ctx.dx = info->handle.ems_handle; + jems_calldriver((EMScontext far *) & ctx); + TRACEMS1(cinfo, 1, JTRC_EMS_CLOSE, info->handle.ems_handle); + /* we ignore any error return from the driver */ +} + + +LOCAL(boolean) +open_ems_store (j_common_ptr cinfo, backing_store_ptr info, + long total_bytes_needed) +{ + EMScontext ctx; + + /* Is EMS driver there? */ + if (! jems_available()) + return FALSE; + + /* Get status, make sure EMS is OK */ + ctx.ax = 0x4000; + jems_calldriver((EMScontext far *) & ctx); + if (HIBYTE(ctx.ax) != 0) + return FALSE; + + /* Get version, must be >= 4.0 */ + ctx.ax = 0x4600; + jems_calldriver((EMScontext far *) & ctx); + if (HIBYTE(ctx.ax) != 0 || LOBYTE(ctx.ax) < 0x40) + return FALSE; + + /* Try to allocate requested space */ + ctx.ax = 0x4300; + ctx.bx = (unsigned short) ((total_bytes_needed + EMSPAGESIZE-1L) / EMSPAGESIZE); + jems_calldriver((EMScontext far *) & ctx); + if (HIBYTE(ctx.ax) != 0) + return FALSE; + + /* Succeeded, save the handle and away we go */ + info->handle.ems_handle = ctx.dx; + info->read_backing_store = read_ems_store; + info->write_backing_store = write_ems_store; + info->close_backing_store = close_ems_store; + TRACEMS1(cinfo, 1, JTRC_EMS_OPEN, ctx.dx); + return TRUE; /* succeeded */ +} + +#endif /* EMS_SUPPORTED */ + + +/* + * Initial opening of a backing-store object. + */ + +GLOBAL(void) +jpeg_open_backing_store (j_common_ptr cinfo, backing_store_ptr info, + long total_bytes_needed) +{ + /* Try extended memory, then expanded memory, then regular file. */ +#if XMS_SUPPORTED + if (open_xms_store(cinfo, info, total_bytes_needed)) + return; +#endif +#if EMS_SUPPORTED + if (open_ems_store(cinfo, info, total_bytes_needed)) + return; +#endif + if (open_file_store(cinfo, info, total_bytes_needed)) + return; + ERREXITS(cinfo, JERR_TFILE_CREATE, ""); +} + + +/* + * These routines take care of any system-dependent initialization and + * cleanup required. + */ + +GLOBAL(long) +jpeg_mem_init (j_common_ptr cinfo) +{ + next_file_num = 0; /* initialize temp file name generator */ + return DEFAULT_MAX_MEM; /* default for max_memory_to_use */ +} + +GLOBAL(void) +jpeg_mem_term (j_common_ptr cinfo) +{ + /* Microsoft C, at least in v6.00A, will not successfully reclaim freed + * blocks of size > 32Kbytes unless we give it a kick in the rear, like so: + */ +#ifdef NEED_FHEAPMIN + _fheapmin(); +#endif +} diff --git a/jpeg/jmemdosa.asm b/jpeg/jmemdosa.asm new file mode 100644 index 0000000..ecd4372 --- /dev/null +++ b/jpeg/jmemdosa.asm @@ -0,0 +1,379 @@ +; +; jmemdosa.asm +; +; Copyright (C) 1992, Thomas G. Lane. +; This file is part of the Independent JPEG Group's software. +; For conditions of distribution and use, see the accompanying README file. +; +; This file contains low-level interface routines to support the MS-DOS +; backing store manager (jmemdos.c). Routines are provided to access disk +; files through direct DOS calls, and to access XMS and EMS drivers. +; +; This file should assemble with Microsoft's MASM or any compatible +; assembler (including Borland's Turbo Assembler). If you haven't got +; a compatible assembler, better fall back to jmemansi.c or jmemname.c. +; +; To minimize dependence on the C compiler's register usage conventions, +; we save and restore all 8086 registers, even though most compilers only +; require SI,DI,DS to be preserved. Also, we use only 16-bit-wide return +; values, which everybody returns in AX. +; +; Based on code contributed by Ge' Weijers. +; + +JMEMDOSA_TXT segment byte public 'CODE' + + assume cs:JMEMDOSA_TXT + + public _jdos_open + public _jdos_close + public _jdos_seek + public _jdos_read + public _jdos_write + public _jxms_getdriver + public _jxms_calldriver + public _jems_available + public _jems_calldriver + +; +; short far jdos_open (short far * handle, char far * filename) +; +; Create and open a temporary file +; +_jdos_open proc far + push bp ; linkage + mov bp,sp + push si ; save all registers for safety + push di + push bx + push cx + push dx + push es + push ds + mov cx,0 ; normal file attributes + lds dx,dword ptr [bp+10] ; get filename pointer + mov ah,3ch ; create file + int 21h + jc open_err ; if failed, return error code + lds bx,dword ptr [bp+6] ; get handle pointer + mov word ptr [bx],ax ; save the handle + xor ax,ax ; return zero for OK +open_err: pop ds ; restore registers and exit + pop es + pop dx + pop cx + pop bx + pop di + pop si + pop bp + ret +_jdos_open endp + + +; +; short far jdos_close (short handle) +; +; Close the file handle +; +_jdos_close proc far + push bp ; linkage + mov bp,sp + push si ; save all registers for safety + push di + push bx + push cx + push dx + push es + push ds + mov bx,word ptr [bp+6] ; file handle + mov ah,3eh ; close file + int 21h + jc close_err ; if failed, return error code + xor ax,ax ; return zero for OK +close_err: pop ds ; restore registers and exit + pop es + pop dx + pop cx + pop bx + pop di + pop si + pop bp + ret +_jdos_close endp + + +; +; short far jdos_seek (short handle, long offset) +; +; Set file position +; +_jdos_seek proc far + push bp ; linkage + mov bp,sp + push si ; save all registers for safety + push di + push bx + push cx + push dx + push es + push ds + mov bx,word ptr [bp+6] ; file handle + mov dx,word ptr [bp+8] ; LS offset + mov cx,word ptr [bp+10] ; MS offset + mov ax,4200h ; absolute seek + int 21h + jc seek_err ; if failed, return error code + xor ax,ax ; return zero for OK +seek_err: pop ds ; restore registers and exit + pop es + pop dx + pop cx + pop bx + pop di + pop si + pop bp + ret +_jdos_seek endp + + +; +; short far jdos_read (short handle, void far * buffer, unsigned short count) +; +; Read from file +; +_jdos_read proc far + push bp ; linkage + mov bp,sp + push si ; save all registers for safety + push di + push bx + push cx + push dx + push es + push ds + mov bx,word ptr [bp+6] ; file handle + lds dx,dword ptr [bp+8] ; buffer address + mov cx,word ptr [bp+12] ; number of bytes + mov ah,3fh ; read file + int 21h + jc read_err ; if failed, return error code + cmp ax,word ptr [bp+12] ; make sure all bytes were read + je read_ok + mov ax,1 ; else return 1 for not OK + jmp short read_err +read_ok: xor ax,ax ; return zero for OK +read_err: pop ds ; restore registers and exit + pop es + pop dx + pop cx + pop bx + pop di + pop si + pop bp + ret +_jdos_read endp + + +; +; short far jdos_write (short handle, void far * buffer, unsigned short count) +; +; Write to file +; +_jdos_write proc far + push bp ; linkage + mov bp,sp + push si ; save all registers for safety + push di + push bx + push cx + push dx + push es + push ds + mov bx,word ptr [bp+6] ; file handle + lds dx,dword ptr [bp+8] ; buffer address + mov cx,word ptr [bp+12] ; number of bytes + mov ah,40h ; write file + int 21h + jc write_err ; if failed, return error code + cmp ax,word ptr [bp+12] ; make sure all bytes written + je write_ok + mov ax,1 ; else return 1 for not OK + jmp short write_err +write_ok: xor ax,ax ; return zero for OK +write_err: pop ds ; restore registers and exit + pop es + pop dx + pop cx + pop bx + pop di + pop si + pop bp + ret +_jdos_write endp + + +; +; void far jxms_getdriver (XMSDRIVER far *) +; +; Get the address of the XMS driver, or NULL if not available +; +_jxms_getdriver proc far + push bp ; linkage + mov bp,sp + push si ; save all registers for safety + push di + push bx + push cx + push dx + push es + push ds + mov ax,4300h ; call multiplex interrupt with + int 2fh ; a magic cookie, hex 4300 + cmp al,80h ; AL should contain hex 80 + je xmsavail + xor dx,dx ; no XMS driver available + xor ax,ax ; return a nil pointer + jmp short xmsavail_done +xmsavail: mov ax,4310h ; fetch driver address with + int 2fh ; another magic cookie + mov dx,es ; copy address to dx:ax + mov ax,bx +xmsavail_done: les bx,dword ptr [bp+6] ; get pointer to return value + mov word ptr es:[bx],ax + mov word ptr es:[bx+2],dx + pop ds ; restore registers and exit + pop es + pop dx + pop cx + pop bx + pop di + pop si + pop bp + ret +_jxms_getdriver endp + + +; +; void far jxms_calldriver (XMSDRIVER, XMScontext far *) +; +; The XMScontext structure contains values for the AX,DX,BX,SI,DS registers. +; These are loaded, the XMS call is performed, and the new values of the +; AX,DX,BX registers are written back to the context structure. +; +_jxms_calldriver proc far + push bp ; linkage + mov bp,sp + push si ; save all registers for safety + push di + push bx + push cx + push dx + push es + push ds + les bx,dword ptr [bp+10] ; get XMScontext pointer + mov ax,word ptr es:[bx] ; load registers + mov dx,word ptr es:[bx+2] + mov si,word ptr es:[bx+6] + mov ds,word ptr es:[bx+8] + mov bx,word ptr es:[bx+4] + call dword ptr [bp+6] ; call the driver + mov cx,bx ; save returned BX for a sec + les bx,dword ptr [bp+10] ; get XMScontext pointer + mov word ptr es:[bx],ax ; put back ax,dx,bx + mov word ptr es:[bx+2],dx + mov word ptr es:[bx+4],cx + pop ds ; restore registers and exit + pop es + pop dx + pop cx + pop bx + pop di + pop si + pop bp + ret +_jxms_calldriver endp + + +; +; short far jems_available (void) +; +; Have we got an EMS driver? (this comes straight from the EMS 4.0 specs) +; +_jems_available proc far + push si ; save all registers for safety + push di + push bx + push cx + push dx + push es + push ds + mov ax,3567h ; get interrupt vector 67h + int 21h + push cs + pop ds + mov di,000ah ; check offs 10 in returned seg + lea si,ASCII_device_name ; against literal string + mov cx,8 + cld + repe cmpsb + jne no_ems + mov ax,1 ; match, it's there + jmp short avail_done +no_ems: xor ax,ax ; it's not there +avail_done: pop ds ; restore registers and exit + pop es + pop dx + pop cx + pop bx + pop di + pop si + ret + +ASCII_device_name db "EMMXXXX0" + +_jems_available endp + + +; +; void far jems_calldriver (EMScontext far *) +; +; The EMScontext structure contains values for the AX,DX,BX,SI,DS registers. +; These are loaded, the EMS trap is performed, and the new values of the +; AX,DX,BX registers are written back to the context structure. +; +_jems_calldriver proc far + push bp ; linkage + mov bp,sp + push si ; save all registers for safety + push di + push bx + push cx + push dx + push es + push ds + les bx,dword ptr [bp+6] ; get EMScontext pointer + mov ax,word ptr es:[bx] ; load registers + mov dx,word ptr es:[bx+2] + mov si,word ptr es:[bx+6] + mov ds,word ptr es:[bx+8] + mov bx,word ptr es:[bx+4] + int 67h ; call the EMS driver + mov cx,bx ; save returned BX for a sec + les bx,dword ptr [bp+6] ; get EMScontext pointer + mov word ptr es:[bx],ax ; put back ax,dx,bx + mov word ptr es:[bx+2],dx + mov word ptr es:[bx+4],cx + pop ds ; restore registers and exit + pop es + pop dx + pop cx + pop bx + pop di + pop si + pop bp + ret +_jems_calldriver endp + +JMEMDOSA_TXT ends + + end diff --git a/jpeg/jmemmac.c b/jpeg/jmemmac.c new file mode 100644 index 0000000..106f9be --- /dev/null +++ b/jpeg/jmemmac.c @@ -0,0 +1,289 @@ +/* + * jmemmac.c + * + * Copyright (C) 1992-1997, Thomas G. Lane. + * This file is part of the Independent JPEG Group's software. + * For conditions of distribution and use, see the accompanying README file. + * + * jmemmac.c provides an Apple Macintosh implementation of the system- + * dependent portion of the JPEG memory manager. + * + * If you use jmemmac.c, then you must define USE_MAC_MEMMGR in the + * JPEG_INTERNALS part of jconfig.h. + * + * jmemmac.c uses the Macintosh toolbox routines NewPtr and DisposePtr + * instead of malloc and free. It accurately determines the amount of + * memory available by using CompactMem. Notice that if left to its + * own devices, this code can chew up all available space in the + * application's zone, with the exception of the rather small "slop" + * factor computed in jpeg_mem_available(). The application can ensure + * that more space is left over by reducing max_memory_to_use. + * + * Large images are swapped to disk using temporary files and System 7.0+'s + * temporary folder functionality. + * + * Note that jmemmac.c depends on two features of MacOS that were first + * introduced in System 7: FindFolder and the FSSpec-based calls. + * If your application uses jmemmac.c and is run under System 6 or earlier, + * and the jpeg library decides it needs a temporary file, it will abort, + * printing error messages about requiring System 7. (If no temporary files + * are created, it will run fine.) + * + * If you want to use jmemmac.c in an application that might be used with + * System 6 or earlier, then you should remove dependencies on FindFolder + * and the FSSpec calls. You will need to replace FindFolder with some + * other mechanism for finding a place to put temporary files, and you + * should replace the FSSpec calls with their HFS equivalents: + * + * FSpDelete -> HDelete + * FSpGetFInfo -> HGetFInfo + * FSpCreate -> HCreate + * FSpOpenDF -> HOpen *** Note: not HOpenDF *** + * FSMakeFSSpec -> (fill in spec by hand.) + * + * (Use HOpen instead of HOpenDF. HOpen is just a glue-interface to PBHOpen, + * which is on all HFS macs. HOpenDF is a System 7 addition which avoids the + * ages-old problem of names starting with a period.) + * + * Contributed by Sam Bushell (jsam@iagu.on.net) and + * Dan Gildor (gyld@in-touch.com). + */ + +#define JPEG_INTERNALS +#include "jinclude.h" +#include "jpeglib.h" +#include "jmemsys.h" /* import the system-dependent declarations */ + +#ifndef USE_MAC_MEMMGR /* make sure user got configuration right */ + You forgot to define USE_MAC_MEMMGR in jconfig.h. /* deliberate syntax error */ +#endif + +#include /* we use the MacOS memory manager */ +#include /* we use the MacOS File stuff */ +#include /* we use the MacOS HFS stuff */ +#include /* for smSystemScript */ +#include /* we use Gestalt to test for specific functionality */ + +#ifndef TEMP_FILE_NAME /* can override from jconfig.h or Makefile */ +#define TEMP_FILE_NAME "JPG%03d.TMP" +#endif + +static int next_file_num; /* to distinguish among several temp files */ + + +/* + * Memory allocation and freeing are controlled by the MacOS library + * routines NewPtr() and DisposePtr(), which allocate fixed-address + * storage. Unfortunately, the IJG library isn't smart enough to cope + * with relocatable storage. + */ + +GLOBAL(void *) +jpeg_get_small (j_common_ptr cinfo, size_t sizeofobject) +{ + return (void *) NewPtr(sizeofobject); +} + +GLOBAL(void) +jpeg_free_small (j_common_ptr cinfo, void * object, size_t sizeofobject) +{ + DisposePtr((Ptr) object); +} + + +/* + * "Large" objects are treated the same as "small" ones. + * NB: we include FAR keywords in the routine declarations simply for + * consistency with the rest of the IJG code; FAR should expand to empty + * on rational architectures like the Mac. + */ + +GLOBAL(void FAR *) +jpeg_get_large (j_common_ptr cinfo, size_t sizeofobject) +{ + return (void FAR *) NewPtr(sizeofobject); +} + +GLOBAL(void) +jpeg_free_large (j_common_ptr cinfo, void FAR * object, size_t sizeofobject) +{ + DisposePtr((Ptr) object); +} + + +/* + * This routine computes the total memory space available for allocation. + */ + +GLOBAL(long) +jpeg_mem_available (j_common_ptr cinfo, long min_bytes_needed, + long max_bytes_needed, long already_allocated) +{ + long limit = cinfo->mem->max_memory_to_use - already_allocated; + long slop, mem; + + /* Don't ask for more than what application has told us we may use */ + if (max_bytes_needed > limit && limit > 0) + max_bytes_needed = limit; + /* Find whether there's a big enough free block in the heap. + * CompactMem tries to create a contiguous block of the requested size, + * and then returns the size of the largest free block (which could be + * much more or much less than we asked for). + * We add some slop to ensure we don't use up all available memory. + */ + slop = max_bytes_needed / 16 + 32768L; + mem = CompactMem(max_bytes_needed + slop) - slop; + if (mem < 0) + mem = 0; /* sigh, couldn't even get the slop */ + /* Don't take more than the application says we can have */ + if (mem > limit && limit > 0) + mem = limit; + return mem; +} + + +/* + * Backing store (temporary file) management. + * Backing store objects are only used when the value returned by + * jpeg_mem_available is less than the total space needed. You can dispense + * with these routines if you have plenty of virtual memory; see jmemnobs.c. + */ + + +METHODDEF(void) +read_backing_store (j_common_ptr cinfo, backing_store_ptr info, + void FAR * buffer_address, + long file_offset, long byte_count) +{ + long bytes = byte_count; + long retVal; + + if ( SetFPos ( info->temp_file, fsFromStart, file_offset ) != noErr ) + ERREXIT(cinfo, JERR_TFILE_SEEK); + + retVal = FSRead ( info->temp_file, &bytes, + (unsigned char *) buffer_address ); + if ( retVal != noErr || bytes != byte_count ) + ERREXIT(cinfo, JERR_TFILE_READ); +} + + +METHODDEF(void) +write_backing_store (j_common_ptr cinfo, backing_store_ptr info, + void FAR * buffer_address, + long file_offset, long byte_count) +{ + long bytes = byte_count; + long retVal; + + if ( SetFPos ( info->temp_file, fsFromStart, file_offset ) != noErr ) + ERREXIT(cinfo, JERR_TFILE_SEEK); + + retVal = FSWrite ( info->temp_file, &bytes, + (unsigned char *) buffer_address ); + if ( retVal != noErr || bytes != byte_count ) + ERREXIT(cinfo, JERR_TFILE_WRITE); +} + + +METHODDEF(void) +close_backing_store (j_common_ptr cinfo, backing_store_ptr info) +{ + FSClose ( info->temp_file ); + FSpDelete ( &(info->tempSpec) ); +} + + +/* + * Initial opening of a backing-store object. + * + * This version uses FindFolder to find the Temporary Items folder, + * and puts the temporary file in there. + */ + +GLOBAL(void) +jpeg_open_backing_store (j_common_ptr cinfo, backing_store_ptr info, + long total_bytes_needed) +{ + short tmpRef, vRefNum; + long dirID; + FInfo finderInfo; + FSSpec theSpec; + Str255 fName; + OSErr osErr; + long gestaltResponse = 0; + + /* Check that FSSpec calls are available. */ + osErr = Gestalt( gestaltFSAttr, &gestaltResponse ); + if ( ( osErr != noErr ) + || !( gestaltResponse & (1<temp_name, TEMP_FILE_NAME, next_file_num); + strcpy ( (Ptr)fName+1, info->temp_name ); + *fName = strlen (info->temp_name); + osErr = FSMakeFSSpec ( vRefNum, dirID, fName, &theSpec ); + + if ( (osErr = FSpGetFInfo ( &theSpec, &finderInfo ) ) != noErr ) + break; + } + + osErr = FSpCreate ( &theSpec, '????', '????', smSystemScript ); + if ( osErr != noErr ) + ERREXITS(cinfo, JERR_TFILE_CREATE, info->temp_name); + + osErr = FSpOpenDF ( &theSpec, fsRdWrPerm, &(info->temp_file) ); + if ( osErr != noErr ) + ERREXITS(cinfo, JERR_TFILE_CREATE, info->temp_name); + + info->tempSpec = theSpec; + + info->read_backing_store = read_backing_store; + info->write_backing_store = write_backing_store; + info->close_backing_store = close_backing_store; + TRACEMSS(cinfo, 1, JTRC_TFILE_OPEN, info->temp_name); +} + + +/* + * These routines take care of any system-dependent initialization and + * cleanup required. + */ + +GLOBAL(long) +jpeg_mem_init (j_common_ptr cinfo) +{ + next_file_num = 0; + + /* max_memory_to_use will be initialized to FreeMem()'s result; + * the calling application might later reduce it, for example + * to leave room to invoke multiple JPEG objects. + * Note that FreeMem returns the total number of free bytes; + * it may not be possible to allocate a single block of this size. + */ + return FreeMem(); +} + +GLOBAL(void) +jpeg_mem_term (j_common_ptr cinfo) +{ + /* no work */ +} diff --git a/jpeg/jmemmgr.c b/jpeg/jmemmgr.c new file mode 100644 index 0000000..f0e83fb --- /dev/null +++ b/jpeg/jmemmgr.c @@ -0,0 +1,1119 @@ +/* + * jmemmgr.c + * + * Copyright (C) 1991-1997, Thomas G. Lane. + * Modified 2011 by Guido Vollbeding. + * This file is part of the Independent JPEG Group's software. + * For conditions of distribution and use, see the accompanying README file. + * + * This file contains the JPEG system-independent memory management + * routines. This code is usable across a wide variety of machines; most + * of the system dependencies have been isolated in a separate file. + * The major functions provided here are: + * * pool-based allocation and freeing of memory; + * * policy decisions about how to divide available memory among the + * virtual arrays; + * * control logic for swapping virtual arrays between main memory and + * backing storage. + * The separate system-dependent file provides the actual backing-storage + * access code, and it contains the policy decision about how much total + * main memory to use. + * This file is system-dependent in the sense that some of its functions + * are unnecessary in some systems. For example, if there is enough virtual + * memory so that backing storage will never be used, much of the virtual + * array control logic could be removed. (Of course, if you have that much + * memory then you shouldn't care about a little bit of unused code...) + */ + +#define JPEG_INTERNALS +#define AM_MEMORY_MANAGER /* we define jvirt_Xarray_control structs */ +#include "jinclude.h" +#include "jpeglib.h" +#include "jmemsys.h" /* import the system-dependent declarations */ + +#ifndef NO_GETENV +#ifndef HAVE_STDLIB_H /* should declare getenv() */ +extern char * getenv JPP((const char * name)); +#endif +#endif + + +/* + * Some important notes: + * The allocation routines provided here must never return NULL. + * They should exit to error_exit if unsuccessful. + * + * It's not a good idea to try to merge the sarray and barray routines, + * even though they are textually almost the same, because samples are + * usually stored as bytes while coefficients are shorts or ints. Thus, + * in machines where byte pointers have a different representation from + * word pointers, the resulting machine code could not be the same. + */ + + +/* + * Many machines require storage alignment: longs must start on 4-byte + * boundaries, doubles on 8-byte boundaries, etc. On such machines, malloc() + * always returns pointers that are multiples of the worst-case alignment + * requirement, and we had better do so too. + * There isn't any really portable way to determine the worst-case alignment + * requirement. This module assumes that the alignment requirement is + * multiples of sizeof(ALIGN_TYPE). + * By default, we define ALIGN_TYPE as double. This is necessary on some + * workstations (where doubles really do need 8-byte alignment) and will work + * fine on nearly everything. If your machine has lesser alignment needs, + * you can save a few bytes by making ALIGN_TYPE smaller. + * The only place I know of where this will NOT work is certain Macintosh + * 680x0 compilers that define double as a 10-byte IEEE extended float. + * Doing 10-byte alignment is counterproductive because longwords won't be + * aligned well. Put "#define ALIGN_TYPE long" in jconfig.h if you have + * such a compiler. + */ + +#ifndef ALIGN_TYPE /* so can override from jconfig.h */ +#define ALIGN_TYPE double +#endif + + +/* + * We allocate objects from "pools", where each pool is gotten with a single + * request to jpeg_get_small() or jpeg_get_large(). There is no per-object + * overhead within a pool, except for alignment padding. Each pool has a + * header with a link to the next pool of the same class. + * Small and large pool headers are identical except that the latter's + * link pointer must be FAR on 80x86 machines. + * Notice that the "real" header fields are union'ed with a dummy ALIGN_TYPE + * field. This forces the compiler to make SIZEOF(small_pool_hdr) a multiple + * of the alignment requirement of ALIGN_TYPE. + */ + +typedef union small_pool_struct * small_pool_ptr; + +typedef union small_pool_struct { + struct { + small_pool_ptr next; /* next in list of pools */ + size_t bytes_used; /* how many bytes already used within pool */ + size_t bytes_left; /* bytes still available in this pool */ + } hdr; + ALIGN_TYPE dummy; /* included in union to ensure alignment */ +} small_pool_hdr; + +typedef union large_pool_struct FAR * large_pool_ptr; + +typedef union large_pool_struct { + struct { + large_pool_ptr next; /* next in list of pools */ + size_t bytes_used; /* how many bytes already used within pool */ + size_t bytes_left; /* bytes still available in this pool */ + } hdr; + ALIGN_TYPE dummy; /* included in union to ensure alignment */ +} large_pool_hdr; + + +/* + * Here is the full definition of a memory manager object. + */ + +typedef struct { + struct jpeg_memory_mgr pub; /* public fields */ + + /* Each pool identifier (lifetime class) names a linked list of pools. */ + small_pool_ptr small_list[JPOOL_NUMPOOLS]; + large_pool_ptr large_list[JPOOL_NUMPOOLS]; + + /* Since we only have one lifetime class of virtual arrays, only one + * linked list is necessary (for each datatype). Note that the virtual + * array control blocks being linked together are actually stored somewhere + * in the small-pool list. + */ + jvirt_sarray_ptr virt_sarray_list; + jvirt_barray_ptr virt_barray_list; + + /* This counts total space obtained from jpeg_get_small/large */ + long total_space_allocated; + + /* alloc_sarray and alloc_barray set this value for use by virtual + * array routines. + */ + JDIMENSION last_rowsperchunk; /* from most recent alloc_sarray/barray */ +} my_memory_mgr; + +typedef my_memory_mgr * my_mem_ptr; + + +/* + * The control blocks for virtual arrays. + * Note that these blocks are allocated in the "small" pool area. + * System-dependent info for the associated backing store (if any) is hidden + * inside the backing_store_info struct. + */ + +struct jvirt_sarray_control { + JSAMPARRAY mem_buffer; /* => the in-memory buffer */ + JDIMENSION rows_in_array; /* total virtual array height */ + JDIMENSION samplesperrow; /* width of array (and of memory buffer) */ + JDIMENSION maxaccess; /* max rows accessed by access_virt_sarray */ + JDIMENSION rows_in_mem; /* height of memory buffer */ + JDIMENSION rowsperchunk; /* allocation chunk size in mem_buffer */ + JDIMENSION cur_start_row; /* first logical row # in the buffer */ + JDIMENSION first_undef_row; /* row # of first uninitialized row */ + boolean pre_zero; /* pre-zero mode requested? */ + boolean dirty; /* do current buffer contents need written? */ + boolean b_s_open; /* is backing-store data valid? */ + jvirt_sarray_ptr next; /* link to next virtual sarray control block */ + backing_store_info b_s_info; /* System-dependent control info */ +}; + +struct jvirt_barray_control { + JBLOCKARRAY mem_buffer; /* => the in-memory buffer */ + JDIMENSION rows_in_array; /* total virtual array height */ + JDIMENSION blocksperrow; /* width of array (and of memory buffer) */ + JDIMENSION maxaccess; /* max rows accessed by access_virt_barray */ + JDIMENSION rows_in_mem; /* height of memory buffer */ + JDIMENSION rowsperchunk; /* allocation chunk size in mem_buffer */ + JDIMENSION cur_start_row; /* first logical row # in the buffer */ + JDIMENSION first_undef_row; /* row # of first uninitialized row */ + boolean pre_zero; /* pre-zero mode requested? */ + boolean dirty; /* do current buffer contents need written? */ + boolean b_s_open; /* is backing-store data valid? */ + jvirt_barray_ptr next; /* link to next virtual barray control block */ + backing_store_info b_s_info; /* System-dependent control info */ +}; + + +#ifdef MEM_STATS /* optional extra stuff for statistics */ + +LOCAL(void) +print_mem_stats (j_common_ptr cinfo, int pool_id) +{ + my_mem_ptr mem = (my_mem_ptr) cinfo->mem; + small_pool_ptr shdr_ptr; + large_pool_ptr lhdr_ptr; + + /* Since this is only a debugging stub, we can cheat a little by using + * fprintf directly rather than going through the trace message code. + * This is helpful because message parm array can't handle longs. + */ + fprintf(stderr, "Freeing pool %d, total space = %ld\n", + pool_id, mem->total_space_allocated); + + for (lhdr_ptr = mem->large_list[pool_id]; lhdr_ptr != NULL; + lhdr_ptr = lhdr_ptr->hdr.next) { + fprintf(stderr, " Large chunk used %ld\n", + (long) lhdr_ptr->hdr.bytes_used); + } + + for (shdr_ptr = mem->small_list[pool_id]; shdr_ptr != NULL; + shdr_ptr = shdr_ptr->hdr.next) { + fprintf(stderr, " Small chunk used %ld free %ld\n", + (long) shdr_ptr->hdr.bytes_used, + (long) shdr_ptr->hdr.bytes_left); + } +} + +#endif /* MEM_STATS */ + + +LOCAL(void) +out_of_memory (j_common_ptr cinfo, int which) +/* Report an out-of-memory error and stop execution */ +/* If we compiled MEM_STATS support, report alloc requests before dying */ +{ +#ifdef MEM_STATS + cinfo->err->trace_level = 2; /* force self_destruct to report stats */ +#endif + ERREXIT1(cinfo, JERR_OUT_OF_MEMORY, which); +} + + +/* + * Allocation of "small" objects. + * + * For these, we use pooled storage. When a new pool must be created, + * we try to get enough space for the current request plus a "slop" factor, + * where the slop will be the amount of leftover space in the new pool. + * The speed vs. space tradeoff is largely determined by the slop values. + * A different slop value is provided for each pool class (lifetime), + * and we also distinguish the first pool of a class from later ones. + * NOTE: the values given work fairly well on both 16- and 32-bit-int + * machines, but may be too small if longs are 64 bits or more. + */ + +static const size_t first_pool_slop[JPOOL_NUMPOOLS] = +{ + 1600, /* first PERMANENT pool */ + 16000 /* first IMAGE pool */ +}; + +static const size_t extra_pool_slop[JPOOL_NUMPOOLS] = +{ + 0, /* additional PERMANENT pools */ + 5000 /* additional IMAGE pools */ +}; + +#define MIN_SLOP 50 /* greater than 0 to avoid futile looping */ + + +METHODDEF(void *) +alloc_small (j_common_ptr cinfo, int pool_id, size_t sizeofobject) +/* Allocate a "small" object */ +{ + my_mem_ptr mem = (my_mem_ptr) cinfo->mem; + small_pool_ptr hdr_ptr, prev_hdr_ptr; + char * data_ptr; + size_t odd_bytes, min_request, slop; + + /* Check for unsatisfiable request (do now to ensure no overflow below) */ + if (sizeofobject > (size_t) (MAX_ALLOC_CHUNK-SIZEOF(small_pool_hdr))) + out_of_memory(cinfo, 1); /* request exceeds malloc's ability */ + + /* Round up the requested size to a multiple of SIZEOF(ALIGN_TYPE) */ + odd_bytes = sizeofobject % SIZEOF(ALIGN_TYPE); + if (odd_bytes > 0) + sizeofobject += SIZEOF(ALIGN_TYPE) - odd_bytes; + + /* See if space is available in any existing pool */ + if (pool_id < 0 || pool_id >= JPOOL_NUMPOOLS) + ERREXIT1(cinfo, JERR_BAD_POOL_ID, pool_id); /* safety check */ + prev_hdr_ptr = NULL; + hdr_ptr = mem->small_list[pool_id]; + while (hdr_ptr != NULL) { + if (hdr_ptr->hdr.bytes_left >= sizeofobject) + break; /* found pool with enough space */ + prev_hdr_ptr = hdr_ptr; + hdr_ptr = hdr_ptr->hdr.next; + } + + /* Time to make a new pool? */ + if (hdr_ptr == NULL) { + /* min_request is what we need now, slop is what will be leftover */ + min_request = sizeofobject + SIZEOF(small_pool_hdr); + if (prev_hdr_ptr == NULL) /* first pool in class? */ + slop = first_pool_slop[pool_id]; + else + slop = extra_pool_slop[pool_id]; + /* Don't ask for more than MAX_ALLOC_CHUNK */ + if (slop > (size_t) (MAX_ALLOC_CHUNK-min_request)) + slop = (size_t) (MAX_ALLOC_CHUNK-min_request); + /* Try to get space, if fail reduce slop and try again */ + for (;;) { + hdr_ptr = (small_pool_ptr) jpeg_get_small(cinfo, min_request + slop); + if (hdr_ptr != NULL) + break; + slop /= 2; + if (slop < MIN_SLOP) /* give up when it gets real small */ + out_of_memory(cinfo, 2); /* jpeg_get_small failed */ + } + mem->total_space_allocated += min_request + slop; + /* Success, initialize the new pool header and add to end of list */ + hdr_ptr->hdr.next = NULL; + hdr_ptr->hdr.bytes_used = 0; + hdr_ptr->hdr.bytes_left = sizeofobject + slop; + if (prev_hdr_ptr == NULL) /* first pool in class? */ + mem->small_list[pool_id] = hdr_ptr; + else + prev_hdr_ptr->hdr.next = hdr_ptr; + } + + /* OK, allocate the object from the current pool */ + data_ptr = (char *) (hdr_ptr + 1); /* point to first data byte in pool */ + data_ptr += hdr_ptr->hdr.bytes_used; /* point to place for object */ + hdr_ptr->hdr.bytes_used += sizeofobject; + hdr_ptr->hdr.bytes_left -= sizeofobject; + + return (void *) data_ptr; +} + + +/* + * Allocation of "large" objects. + * + * The external semantics of these are the same as "small" objects, + * except that FAR pointers are used on 80x86. However the pool + * management heuristics are quite different. We assume that each + * request is large enough that it may as well be passed directly to + * jpeg_get_large; the pool management just links everything together + * so that we can free it all on demand. + * Note: the major use of "large" objects is in JSAMPARRAY and JBLOCKARRAY + * structures. The routines that create these structures (see below) + * deliberately bunch rows together to ensure a large request size. + */ + +METHODDEF(void FAR *) +alloc_large (j_common_ptr cinfo, int pool_id, size_t sizeofobject) +/* Allocate a "large" object */ +{ + my_mem_ptr mem = (my_mem_ptr) cinfo->mem; + large_pool_ptr hdr_ptr; + size_t odd_bytes; + + /* Check for unsatisfiable request (do now to ensure no overflow below) */ + if (sizeofobject > (size_t) (MAX_ALLOC_CHUNK-SIZEOF(large_pool_hdr))) + out_of_memory(cinfo, 3); /* request exceeds malloc's ability */ + + /* Round up the requested size to a multiple of SIZEOF(ALIGN_TYPE) */ + odd_bytes = sizeofobject % SIZEOF(ALIGN_TYPE); + if (odd_bytes > 0) + sizeofobject += SIZEOF(ALIGN_TYPE) - odd_bytes; + + /* Always make a new pool */ + if (pool_id < 0 || pool_id >= JPOOL_NUMPOOLS) + ERREXIT1(cinfo, JERR_BAD_POOL_ID, pool_id); /* safety check */ + + hdr_ptr = (large_pool_ptr) jpeg_get_large(cinfo, sizeofobject + + SIZEOF(large_pool_hdr)); + if (hdr_ptr == NULL) + out_of_memory(cinfo, 4); /* jpeg_get_large failed */ + mem->total_space_allocated += sizeofobject + SIZEOF(large_pool_hdr); + + /* Success, initialize the new pool header and add to list */ + hdr_ptr->hdr.next = mem->large_list[pool_id]; + /* We maintain space counts in each pool header for statistical purposes, + * even though they are not needed for allocation. + */ + hdr_ptr->hdr.bytes_used = sizeofobject; + hdr_ptr->hdr.bytes_left = 0; + mem->large_list[pool_id] = hdr_ptr; + + return (void FAR *) (hdr_ptr + 1); /* point to first data byte in pool */ +} + + +/* + * Creation of 2-D sample arrays. + * The pointers are in near heap, the samples themselves in FAR heap. + * + * To minimize allocation overhead and to allow I/O of large contiguous + * blocks, we allocate the sample rows in groups of as many rows as possible + * without exceeding MAX_ALLOC_CHUNK total bytes per allocation request. + * NB: the virtual array control routines, later in this file, know about + * this chunking of rows. The rowsperchunk value is left in the mem manager + * object so that it can be saved away if this sarray is the workspace for + * a virtual array. + */ + +METHODDEF(JSAMPARRAY) +alloc_sarray (j_common_ptr cinfo, int pool_id, + JDIMENSION samplesperrow, JDIMENSION numrows) +/* Allocate a 2-D sample array */ +{ + my_mem_ptr mem = (my_mem_ptr) cinfo->mem; + JSAMPARRAY result; + JSAMPROW workspace; + JDIMENSION rowsperchunk, currow, i; + long ltemp; + + /* Calculate max # of rows allowed in one allocation chunk */ + ltemp = (MAX_ALLOC_CHUNK-SIZEOF(large_pool_hdr)) / + ((long) samplesperrow * SIZEOF(JSAMPLE)); + if (ltemp <= 0) + ERREXIT(cinfo, JERR_WIDTH_OVERFLOW); + if (ltemp < (long) numrows) + rowsperchunk = (JDIMENSION) ltemp; + else + rowsperchunk = numrows; + mem->last_rowsperchunk = rowsperchunk; + + /* Get space for row pointers (small object) */ + result = (JSAMPARRAY) alloc_small(cinfo, pool_id, + (size_t) (numrows * SIZEOF(JSAMPROW))); + + /* Get the rows themselves (large objects) */ + currow = 0; + while (currow < numrows) { + rowsperchunk = MIN(rowsperchunk, numrows - currow); + workspace = (JSAMPROW) alloc_large(cinfo, pool_id, + (size_t) ((size_t) rowsperchunk * (size_t) samplesperrow + * SIZEOF(JSAMPLE))); + for (i = rowsperchunk; i > 0; i--) { + result[currow++] = workspace; + workspace += samplesperrow; + } + } + + return result; +} + + +/* + * Creation of 2-D coefficient-block arrays. + * This is essentially the same as the code for sample arrays, above. + */ + +METHODDEF(JBLOCKARRAY) +alloc_barray (j_common_ptr cinfo, int pool_id, + JDIMENSION blocksperrow, JDIMENSION numrows) +/* Allocate a 2-D coefficient-block array */ +{ + my_mem_ptr mem = (my_mem_ptr) cinfo->mem; + JBLOCKARRAY result; + JBLOCKROW workspace; + JDIMENSION rowsperchunk, currow, i; + long ltemp; + + /* Calculate max # of rows allowed in one allocation chunk */ + ltemp = (MAX_ALLOC_CHUNK-SIZEOF(large_pool_hdr)) / + ((long) blocksperrow * SIZEOF(JBLOCK)); + if (ltemp <= 0) + ERREXIT(cinfo, JERR_WIDTH_OVERFLOW); + if (ltemp < (long) numrows) + rowsperchunk = (JDIMENSION) ltemp; + else + rowsperchunk = numrows; + mem->last_rowsperchunk = rowsperchunk; + + /* Get space for row pointers (small object) */ + result = (JBLOCKARRAY) alloc_small(cinfo, pool_id, + (size_t) (numrows * SIZEOF(JBLOCKROW))); + + /* Get the rows themselves (large objects) */ + currow = 0; + while (currow < numrows) { + rowsperchunk = MIN(rowsperchunk, numrows - currow); + workspace = (JBLOCKROW) alloc_large(cinfo, pool_id, + (size_t) ((size_t) rowsperchunk * (size_t) blocksperrow + * SIZEOF(JBLOCK))); + for (i = rowsperchunk; i > 0; i--) { + result[currow++] = workspace; + workspace += blocksperrow; + } + } + + return result; +} + + +/* + * About virtual array management: + * + * The above "normal" array routines are only used to allocate strip buffers + * (as wide as the image, but just a few rows high). Full-image-sized buffers + * are handled as "virtual" arrays. The array is still accessed a strip at a + * time, but the memory manager must save the whole array for repeated + * accesses. The intended implementation is that there is a strip buffer in + * memory (as high as is possible given the desired memory limit), plus a + * backing file that holds the rest of the array. + * + * The request_virt_array routines are told the total size of the image and + * the maximum number of rows that will be accessed at once. The in-memory + * buffer must be at least as large as the maxaccess value. + * + * The request routines create control blocks but not the in-memory buffers. + * That is postponed until realize_virt_arrays is called. At that time the + * total amount of space needed is known (approximately, anyway), so free + * memory can be divided up fairly. + * + * The access_virt_array routines are responsible for making a specific strip + * area accessible (after reading or writing the backing file, if necessary). + * Note that the access routines are told whether the caller intends to modify + * the accessed strip; during a read-only pass this saves having to rewrite + * data to disk. The access routines are also responsible for pre-zeroing + * any newly accessed rows, if pre-zeroing was requested. + * + * In current usage, the access requests are usually for nonoverlapping + * strips; that is, successive access start_row numbers differ by exactly + * num_rows = maxaccess. This means we can get good performance with simple + * buffer dump/reload logic, by making the in-memory buffer be a multiple + * of the access height; then there will never be accesses across bufferload + * boundaries. The code will still work with overlapping access requests, + * but it doesn't handle bufferload overlaps very efficiently. + */ + + +METHODDEF(jvirt_sarray_ptr) +request_virt_sarray (j_common_ptr cinfo, int pool_id, boolean pre_zero, + JDIMENSION samplesperrow, JDIMENSION numrows, + JDIMENSION maxaccess) +/* Request a virtual 2-D sample array */ +{ + my_mem_ptr mem = (my_mem_ptr) cinfo->mem; + jvirt_sarray_ptr result; + + /* Only IMAGE-lifetime virtual arrays are currently supported */ + if (pool_id != JPOOL_IMAGE) + ERREXIT1(cinfo, JERR_BAD_POOL_ID, pool_id); /* safety check */ + + /* get control block */ + result = (jvirt_sarray_ptr) alloc_small(cinfo, pool_id, + SIZEOF(struct jvirt_sarray_control)); + + result->mem_buffer = NULL; /* marks array not yet realized */ + result->rows_in_array = numrows; + result->samplesperrow = samplesperrow; + result->maxaccess = maxaccess; + result->pre_zero = pre_zero; + result->b_s_open = FALSE; /* no associated backing-store object */ + result->next = mem->virt_sarray_list; /* add to list of virtual arrays */ + mem->virt_sarray_list = result; + + return result; +} + + +METHODDEF(jvirt_barray_ptr) +request_virt_barray (j_common_ptr cinfo, int pool_id, boolean pre_zero, + JDIMENSION blocksperrow, JDIMENSION numrows, + JDIMENSION maxaccess) +/* Request a virtual 2-D coefficient-block array */ +{ + my_mem_ptr mem = (my_mem_ptr) cinfo->mem; + jvirt_barray_ptr result; + + /* Only IMAGE-lifetime virtual arrays are currently supported */ + if (pool_id != JPOOL_IMAGE) + ERREXIT1(cinfo, JERR_BAD_POOL_ID, pool_id); /* safety check */ + + /* get control block */ + result = (jvirt_barray_ptr) alloc_small(cinfo, pool_id, + SIZEOF(struct jvirt_barray_control)); + + result->mem_buffer = NULL; /* marks array not yet realized */ + result->rows_in_array = numrows; + result->blocksperrow = blocksperrow; + result->maxaccess = maxaccess; + result->pre_zero = pre_zero; + result->b_s_open = FALSE; /* no associated backing-store object */ + result->next = mem->virt_barray_list; /* add to list of virtual arrays */ + mem->virt_barray_list = result; + + return result; +} + + +METHODDEF(void) +realize_virt_arrays (j_common_ptr cinfo) +/* Allocate the in-memory buffers for any unrealized virtual arrays */ +{ + my_mem_ptr mem = (my_mem_ptr) cinfo->mem; + long space_per_minheight, maximum_space, avail_mem; + long minheights, max_minheights; + jvirt_sarray_ptr sptr; + jvirt_barray_ptr bptr; + + /* Compute the minimum space needed (maxaccess rows in each buffer) + * and the maximum space needed (full image height in each buffer). + * These may be of use to the system-dependent jpeg_mem_available routine. + */ + space_per_minheight = 0; + maximum_space = 0; + for (sptr = mem->virt_sarray_list; sptr != NULL; sptr = sptr->next) { + if (sptr->mem_buffer == NULL) { /* if not realized yet */ + space_per_minheight += (long) sptr->maxaccess * + (long) sptr->samplesperrow * SIZEOF(JSAMPLE); + maximum_space += (long) sptr->rows_in_array * + (long) sptr->samplesperrow * SIZEOF(JSAMPLE); + } + } + for (bptr = mem->virt_barray_list; bptr != NULL; bptr = bptr->next) { + if (bptr->mem_buffer == NULL) { /* if not realized yet */ + space_per_minheight += (long) bptr->maxaccess * + (long) bptr->blocksperrow * SIZEOF(JBLOCK); + maximum_space += (long) bptr->rows_in_array * + (long) bptr->blocksperrow * SIZEOF(JBLOCK); + } + } + + if (space_per_minheight <= 0) + return; /* no unrealized arrays, no work */ + + /* Determine amount of memory to actually use; this is system-dependent. */ + avail_mem = jpeg_mem_available(cinfo, space_per_minheight, maximum_space, + mem->total_space_allocated); + + /* If the maximum space needed is available, make all the buffers full + * height; otherwise parcel it out with the same number of minheights + * in each buffer. + */ + if (avail_mem >= maximum_space) + max_minheights = 1000000000L; + else { + max_minheights = avail_mem / space_per_minheight; + /* If there doesn't seem to be enough space, try to get the minimum + * anyway. This allows a "stub" implementation of jpeg_mem_available(). + */ + if (max_minheights <= 0) + max_minheights = 1; + } + + /* Allocate the in-memory buffers and initialize backing store as needed. */ + + for (sptr = mem->virt_sarray_list; sptr != NULL; sptr = sptr->next) { + if (sptr->mem_buffer == NULL) { /* if not realized yet */ + minheights = ((long) sptr->rows_in_array - 1L) / sptr->maxaccess + 1L; + if (minheights <= max_minheights) { + /* This buffer fits in memory */ + sptr->rows_in_mem = sptr->rows_in_array; + } else { + /* It doesn't fit in memory, create backing store. */ + sptr->rows_in_mem = (JDIMENSION) (max_minheights * sptr->maxaccess); + jpeg_open_backing_store(cinfo, & sptr->b_s_info, + (long) sptr->rows_in_array * + (long) sptr->samplesperrow * + (long) SIZEOF(JSAMPLE)); + sptr->b_s_open = TRUE; + } + sptr->mem_buffer = alloc_sarray(cinfo, JPOOL_IMAGE, + sptr->samplesperrow, sptr->rows_in_mem); + sptr->rowsperchunk = mem->last_rowsperchunk; + sptr->cur_start_row = 0; + sptr->first_undef_row = 0; + sptr->dirty = FALSE; + } + } + + for (bptr = mem->virt_barray_list; bptr != NULL; bptr = bptr->next) { + if (bptr->mem_buffer == NULL) { /* if not realized yet */ + minheights = ((long) bptr->rows_in_array - 1L) / bptr->maxaccess + 1L; + if (minheights <= max_minheights) { + /* This buffer fits in memory */ + bptr->rows_in_mem = bptr->rows_in_array; + } else { + /* It doesn't fit in memory, create backing store. */ + bptr->rows_in_mem = (JDIMENSION) (max_minheights * bptr->maxaccess); + jpeg_open_backing_store(cinfo, & bptr->b_s_info, + (long) bptr->rows_in_array * + (long) bptr->blocksperrow * + (long) SIZEOF(JBLOCK)); + bptr->b_s_open = TRUE; + } + bptr->mem_buffer = alloc_barray(cinfo, JPOOL_IMAGE, + bptr->blocksperrow, bptr->rows_in_mem); + bptr->rowsperchunk = mem->last_rowsperchunk; + bptr->cur_start_row = 0; + bptr->first_undef_row = 0; + bptr->dirty = FALSE; + } + } +} + + +LOCAL(void) +do_sarray_io (j_common_ptr cinfo, jvirt_sarray_ptr ptr, boolean writing) +/* Do backing store read or write of a virtual sample array */ +{ + long bytesperrow, file_offset, byte_count, rows, thisrow, i; + + bytesperrow = (long) ptr->samplesperrow * SIZEOF(JSAMPLE); + file_offset = ptr->cur_start_row * bytesperrow; + /* Loop to read or write each allocation chunk in mem_buffer */ + for (i = 0; i < (long) ptr->rows_in_mem; i += ptr->rowsperchunk) { + /* One chunk, but check for short chunk at end of buffer */ + rows = MIN((long) ptr->rowsperchunk, (long) ptr->rows_in_mem - i); + /* Transfer no more than is currently defined */ + thisrow = (long) ptr->cur_start_row + i; + rows = MIN(rows, (long) ptr->first_undef_row - thisrow); + /* Transfer no more than fits in file */ + rows = MIN(rows, (long) ptr->rows_in_array - thisrow); + if (rows <= 0) /* this chunk might be past end of file! */ + break; + byte_count = rows * bytesperrow; + if (writing) + (*ptr->b_s_info.write_backing_store) (cinfo, & ptr->b_s_info, + (void FAR *) ptr->mem_buffer[i], + file_offset, byte_count); + else + (*ptr->b_s_info.read_backing_store) (cinfo, & ptr->b_s_info, + (void FAR *) ptr->mem_buffer[i], + file_offset, byte_count); + file_offset += byte_count; + } +} + + +LOCAL(void) +do_barray_io (j_common_ptr cinfo, jvirt_barray_ptr ptr, boolean writing) +/* Do backing store read or write of a virtual coefficient-block array */ +{ + long bytesperrow, file_offset, byte_count, rows, thisrow, i; + + bytesperrow = (long) ptr->blocksperrow * SIZEOF(JBLOCK); + file_offset = ptr->cur_start_row * bytesperrow; + /* Loop to read or write each allocation chunk in mem_buffer */ + for (i = 0; i < (long) ptr->rows_in_mem; i += ptr->rowsperchunk) { + /* One chunk, but check for short chunk at end of buffer */ + rows = MIN((long) ptr->rowsperchunk, (long) ptr->rows_in_mem - i); + /* Transfer no more than is currently defined */ + thisrow = (long) ptr->cur_start_row + i; + rows = MIN(rows, (long) ptr->first_undef_row - thisrow); + /* Transfer no more than fits in file */ + rows = MIN(rows, (long) ptr->rows_in_array - thisrow); + if (rows <= 0) /* this chunk might be past end of file! */ + break; + byte_count = rows * bytesperrow; + if (writing) + (*ptr->b_s_info.write_backing_store) (cinfo, & ptr->b_s_info, + (void FAR *) ptr->mem_buffer[i], + file_offset, byte_count); + else + (*ptr->b_s_info.read_backing_store) (cinfo, & ptr->b_s_info, + (void FAR *) ptr->mem_buffer[i], + file_offset, byte_count); + file_offset += byte_count; + } +} + + +METHODDEF(JSAMPARRAY) +access_virt_sarray (j_common_ptr cinfo, jvirt_sarray_ptr ptr, + JDIMENSION start_row, JDIMENSION num_rows, + boolean writable) +/* Access the part of a virtual sample array starting at start_row */ +/* and extending for num_rows rows. writable is true if */ +/* caller intends to modify the accessed area. */ +{ + JDIMENSION end_row = start_row + num_rows; + JDIMENSION undef_row; + + /* debugging check */ + if (end_row > ptr->rows_in_array || num_rows > ptr->maxaccess || + ptr->mem_buffer == NULL) + ERREXIT(cinfo, JERR_BAD_VIRTUAL_ACCESS); + + /* Make the desired part of the virtual array accessible */ + if (start_row < ptr->cur_start_row || + end_row > ptr->cur_start_row+ptr->rows_in_mem) { + if (! ptr->b_s_open) + ERREXIT(cinfo, JERR_VIRTUAL_BUG); + /* Flush old buffer contents if necessary */ + if (ptr->dirty) { + do_sarray_io(cinfo, ptr, TRUE); + ptr->dirty = FALSE; + } + /* Decide what part of virtual array to access. + * Algorithm: if target address > current window, assume forward scan, + * load starting at target address. If target address < current window, + * assume backward scan, load so that target area is top of window. + * Note that when switching from forward write to forward read, will have + * start_row = 0, so the limiting case applies and we load from 0 anyway. + */ + if (start_row > ptr->cur_start_row) { + ptr->cur_start_row = start_row; + } else { + /* use long arithmetic here to avoid overflow & unsigned problems */ + long ltemp; + + ltemp = (long) end_row - (long) ptr->rows_in_mem; + if (ltemp < 0) + ltemp = 0; /* don't fall off front end of file */ + ptr->cur_start_row = (JDIMENSION) ltemp; + } + /* Read in the selected part of the array. + * During the initial write pass, we will do no actual read + * because the selected part is all undefined. + */ + do_sarray_io(cinfo, ptr, FALSE); + } + /* Ensure the accessed part of the array is defined; prezero if needed. + * To improve locality of access, we only prezero the part of the array + * that the caller is about to access, not the entire in-memory array. + */ + if (ptr->first_undef_row < end_row) { + if (ptr->first_undef_row < start_row) { + if (writable) /* writer skipped over a section of array */ + ERREXIT(cinfo, JERR_BAD_VIRTUAL_ACCESS); + undef_row = start_row; /* but reader is allowed to read ahead */ + } else { + undef_row = ptr->first_undef_row; + } + if (writable) + ptr->first_undef_row = end_row; + if (ptr->pre_zero) { + size_t bytesperrow = (size_t) ptr->samplesperrow * SIZEOF(JSAMPLE); + undef_row -= ptr->cur_start_row; /* make indexes relative to buffer */ + end_row -= ptr->cur_start_row; + while (undef_row < end_row) { + FMEMZERO((void FAR *) ptr->mem_buffer[undef_row], bytesperrow); + undef_row++; + } + } else { + if (! writable) /* reader looking at undefined data */ + ERREXIT(cinfo, JERR_BAD_VIRTUAL_ACCESS); + } + } + /* Flag the buffer dirty if caller will write in it */ + if (writable) + ptr->dirty = TRUE; + /* Return address of proper part of the buffer */ + return ptr->mem_buffer + (start_row - ptr->cur_start_row); +} + + +METHODDEF(JBLOCKARRAY) +access_virt_barray (j_common_ptr cinfo, jvirt_barray_ptr ptr, + JDIMENSION start_row, JDIMENSION num_rows, + boolean writable) +/* Access the part of a virtual block array starting at start_row */ +/* and extending for num_rows rows. writable is true if */ +/* caller intends to modify the accessed area. */ +{ + JDIMENSION end_row = start_row + num_rows; + JDIMENSION undef_row; + + /* debugging check */ + if (end_row > ptr->rows_in_array || num_rows > ptr->maxaccess || + ptr->mem_buffer == NULL) + ERREXIT(cinfo, JERR_BAD_VIRTUAL_ACCESS); + + /* Make the desired part of the virtual array accessible */ + if (start_row < ptr->cur_start_row || + end_row > ptr->cur_start_row+ptr->rows_in_mem) { + if (! ptr->b_s_open) + ERREXIT(cinfo, JERR_VIRTUAL_BUG); + /* Flush old buffer contents if necessary */ + if (ptr->dirty) { + do_barray_io(cinfo, ptr, TRUE); + ptr->dirty = FALSE; + } + /* Decide what part of virtual array to access. + * Algorithm: if target address > current window, assume forward scan, + * load starting at target address. If target address < current window, + * assume backward scan, load so that target area is top of window. + * Note that when switching from forward write to forward read, will have + * start_row = 0, so the limiting case applies and we load from 0 anyway. + */ + if (start_row > ptr->cur_start_row) { + ptr->cur_start_row = start_row; + } else { + /* use long arithmetic here to avoid overflow & unsigned problems */ + long ltemp; + + ltemp = (long) end_row - (long) ptr->rows_in_mem; + if (ltemp < 0) + ltemp = 0; /* don't fall off front end of file */ + ptr->cur_start_row = (JDIMENSION) ltemp; + } + /* Read in the selected part of the array. + * During the initial write pass, we will do no actual read + * because the selected part is all undefined. + */ + do_barray_io(cinfo, ptr, FALSE); + } + /* Ensure the accessed part of the array is defined; prezero if needed. + * To improve locality of access, we only prezero the part of the array + * that the caller is about to access, not the entire in-memory array. + */ + if (ptr->first_undef_row < end_row) { + if (ptr->first_undef_row < start_row) { + if (writable) /* writer skipped over a section of array */ + ERREXIT(cinfo, JERR_BAD_VIRTUAL_ACCESS); + undef_row = start_row; /* but reader is allowed to read ahead */ + } else { + undef_row = ptr->first_undef_row; + } + if (writable) + ptr->first_undef_row = end_row; + if (ptr->pre_zero) { + size_t bytesperrow = (size_t) ptr->blocksperrow * SIZEOF(JBLOCK); + undef_row -= ptr->cur_start_row; /* make indexes relative to buffer */ + end_row -= ptr->cur_start_row; + while (undef_row < end_row) { + FMEMZERO((void FAR *) ptr->mem_buffer[undef_row], bytesperrow); + undef_row++; + } + } else { + if (! writable) /* reader looking at undefined data */ + ERREXIT(cinfo, JERR_BAD_VIRTUAL_ACCESS); + } + } + /* Flag the buffer dirty if caller will write in it */ + if (writable) + ptr->dirty = TRUE; + /* Return address of proper part of the buffer */ + return ptr->mem_buffer + (start_row - ptr->cur_start_row); +} + + +/* + * Release all objects belonging to a specified pool. + */ + +METHODDEF(void) +free_pool (j_common_ptr cinfo, int pool_id) +{ + my_mem_ptr mem = (my_mem_ptr) cinfo->mem; + small_pool_ptr shdr_ptr; + large_pool_ptr lhdr_ptr; + size_t space_freed; + + if (pool_id < 0 || pool_id >= JPOOL_NUMPOOLS) + ERREXIT1(cinfo, JERR_BAD_POOL_ID, pool_id); /* safety check */ + +#ifdef MEM_STATS + if (cinfo->err->trace_level > 1) + print_mem_stats(cinfo, pool_id); /* print pool's memory usage statistics */ +#endif + + /* If freeing IMAGE pool, close any virtual arrays first */ + if (pool_id == JPOOL_IMAGE) { + jvirt_sarray_ptr sptr; + jvirt_barray_ptr bptr; + + for (sptr = mem->virt_sarray_list; sptr != NULL; sptr = sptr->next) { + if (sptr->b_s_open) { /* there may be no backing store */ + sptr->b_s_open = FALSE; /* prevent recursive close if error */ + (*sptr->b_s_info.close_backing_store) (cinfo, & sptr->b_s_info); + } + } + mem->virt_sarray_list = NULL; + for (bptr = mem->virt_barray_list; bptr != NULL; bptr = bptr->next) { + if (bptr->b_s_open) { /* there may be no backing store */ + bptr->b_s_open = FALSE; /* prevent recursive close if error */ + (*bptr->b_s_info.close_backing_store) (cinfo, & bptr->b_s_info); + } + } + mem->virt_barray_list = NULL; + } + + /* Release large objects */ + lhdr_ptr = mem->large_list[pool_id]; + mem->large_list[pool_id] = NULL; + + while (lhdr_ptr != NULL) { + large_pool_ptr next_lhdr_ptr = lhdr_ptr->hdr.next; + space_freed = lhdr_ptr->hdr.bytes_used + + lhdr_ptr->hdr.bytes_left + + SIZEOF(large_pool_hdr); + jpeg_free_large(cinfo, (void FAR *) lhdr_ptr, space_freed); + mem->total_space_allocated -= space_freed; + lhdr_ptr = next_lhdr_ptr; + } + + /* Release small objects */ + shdr_ptr = mem->small_list[pool_id]; + mem->small_list[pool_id] = NULL; + + while (shdr_ptr != NULL) { + small_pool_ptr next_shdr_ptr = shdr_ptr->hdr.next; + space_freed = shdr_ptr->hdr.bytes_used + + shdr_ptr->hdr.bytes_left + + SIZEOF(small_pool_hdr); + jpeg_free_small(cinfo, (void *) shdr_ptr, space_freed); + mem->total_space_allocated -= space_freed; + shdr_ptr = next_shdr_ptr; + } +} + + +/* + * Close up shop entirely. + * Note that this cannot be called unless cinfo->mem is non-NULL. + */ + +METHODDEF(void) +self_destruct (j_common_ptr cinfo) +{ + int pool; + + /* Close all backing store, release all memory. + * Releasing pools in reverse order might help avoid fragmentation + * with some (brain-damaged) malloc libraries. + */ + for (pool = JPOOL_NUMPOOLS-1; pool >= JPOOL_PERMANENT; pool--) { + free_pool(cinfo, pool); + } + + /* Release the memory manager control block too. */ + jpeg_free_small(cinfo, (void *) cinfo->mem, SIZEOF(my_memory_mgr)); + cinfo->mem = NULL; /* ensures I will be called only once */ + + jpeg_mem_term(cinfo); /* system-dependent cleanup */ +} + + +/* + * Memory manager initialization. + * When this is called, only the error manager pointer is valid in cinfo! + */ + +GLOBAL(void) +jinit_memory_mgr (j_common_ptr cinfo) +{ + my_mem_ptr mem; + long max_to_use; + int pool; + size_t test_mac; + + cinfo->mem = NULL; /* for safety if init fails */ + + /* Check for configuration errors. + * SIZEOF(ALIGN_TYPE) should be a power of 2; otherwise, it probably + * doesn't reflect any real hardware alignment requirement. + * The test is a little tricky: for X>0, X and X-1 have no one-bits + * in common if and only if X is a power of 2, ie has only one one-bit. + * Some compilers may give an "unreachable code" warning here; ignore it. + */ + if ((SIZEOF(ALIGN_TYPE) & (SIZEOF(ALIGN_TYPE)-1)) != 0) + ERREXIT(cinfo, JERR_BAD_ALIGN_TYPE); + /* MAX_ALLOC_CHUNK must be representable as type size_t, and must be + * a multiple of SIZEOF(ALIGN_TYPE). + * Again, an "unreachable code" warning may be ignored here. + * But a "constant too large" warning means you need to fix MAX_ALLOC_CHUNK. + */ + test_mac = (size_t) MAX_ALLOC_CHUNK; + if ((long) test_mac != MAX_ALLOC_CHUNK || + (MAX_ALLOC_CHUNK % SIZEOF(ALIGN_TYPE)) != 0) + ERREXIT(cinfo, JERR_BAD_ALLOC_CHUNK); + + max_to_use = jpeg_mem_init(cinfo); /* system-dependent initialization */ + + /* Attempt to allocate memory manager's control block */ + mem = (my_mem_ptr) jpeg_get_small(cinfo, SIZEOF(my_memory_mgr)); + + if (mem == NULL) { + jpeg_mem_term(cinfo); /* system-dependent cleanup */ + ERREXIT1(cinfo, JERR_OUT_OF_MEMORY, 0); + } + + /* OK, fill in the method pointers */ + mem->pub.alloc_small = alloc_small; + mem->pub.alloc_large = alloc_large; + mem->pub.alloc_sarray = alloc_sarray; + mem->pub.alloc_barray = alloc_barray; + mem->pub.request_virt_sarray = request_virt_sarray; + mem->pub.request_virt_barray = request_virt_barray; + mem->pub.realize_virt_arrays = realize_virt_arrays; + mem->pub.access_virt_sarray = access_virt_sarray; + mem->pub.access_virt_barray = access_virt_barray; + mem->pub.free_pool = free_pool; + mem->pub.self_destruct = self_destruct; + + /* Make MAX_ALLOC_CHUNK accessible to other modules */ + mem->pub.max_alloc_chunk = MAX_ALLOC_CHUNK; + + /* Initialize working state */ + mem->pub.max_memory_to_use = max_to_use; + + for (pool = JPOOL_NUMPOOLS-1; pool >= JPOOL_PERMANENT; pool--) { + mem->small_list[pool] = NULL; + mem->large_list[pool] = NULL; + } + mem->virt_sarray_list = NULL; + mem->virt_barray_list = NULL; + + mem->total_space_allocated = SIZEOF(my_memory_mgr); + + /* Declare ourselves open for business */ + cinfo->mem = & mem->pub; + + /* Check for an environment variable JPEGMEM; if found, override the + * default max_memory setting from jpeg_mem_init. Note that the + * surrounding application may again override this value. + * If your system doesn't support getenv(), define NO_GETENV to disable + * this feature. + */ +#ifndef NO_GETENV + { char * memenv; + + if ((memenv = getenv("JPEGMEM")) != NULL) { + char ch = 'x'; + + if (sscanf(memenv, "%ld%c", &max_to_use, &ch) > 0) { + if (ch == 'm' || ch == 'M') + max_to_use *= 1000L; + mem->pub.max_memory_to_use = max_to_use * 1000L; + } + } + } +#endif + +} diff --git a/jpeg/jmemname.c b/jpeg/jmemname.c new file mode 100644 index 0000000..ed96dee --- /dev/null +++ b/jpeg/jmemname.c @@ -0,0 +1,276 @@ +/* + * jmemname.c + * + * Copyright (C) 1992-1997, Thomas G. Lane. + * This file is part of the Independent JPEG Group's software. + * For conditions of distribution and use, see the accompanying README file. + * + * This file provides a generic implementation of the system-dependent + * portion of the JPEG memory manager. This implementation assumes that + * you must explicitly construct a name for each temp file. + * Also, the problem of determining the amount of memory available + * is shoved onto the user. + */ + +#define JPEG_INTERNALS +#include "jinclude.h" +#include "jpeglib.h" +#include "jmemsys.h" /* import the system-dependent declarations */ + +#ifndef HAVE_STDLIB_H /* should declare malloc(),free() */ +extern void * malloc JPP((size_t size)); +extern void free JPP((void *ptr)); +#endif + +#ifndef SEEK_SET /* pre-ANSI systems may not define this; */ +#define SEEK_SET 0 /* if not, assume 0 is correct */ +#endif + +#ifdef DONT_USE_B_MODE /* define mode parameters for fopen() */ +#define READ_BINARY "r" +#define RW_BINARY "w+" +#else +#ifdef VMS /* VMS is very nonstandard */ +#define READ_BINARY "rb", "ctx=stm" +#define RW_BINARY "w+b", "ctx=stm" +#else /* standard ANSI-compliant case */ +#define READ_BINARY "rb" +#define RW_BINARY "w+b" +#endif +#endif + + +/* + * Selection of a file name for a temporary file. + * This is system-dependent! + * + * The code as given is suitable for most Unix systems, and it is easily + * modified for most non-Unix systems. Some notes: + * 1. The temp file is created in the directory named by TEMP_DIRECTORY. + * The default value is /usr/tmp, which is the conventional place for + * creating large temp files on Unix. On other systems you'll probably + * want to change the file location. You can do this by editing the + * #define, or (preferred) by defining TEMP_DIRECTORY in jconfig.h. + * + * 2. If you need to change the file name as well as its location, + * you can override the TEMP_FILE_NAME macro. (Note that this is + * actually a printf format string; it must contain %s and %d.) + * Few people should need to do this. + * + * 3. mktemp() is used to ensure that multiple processes running + * simultaneously won't select the same file names. If your system + * doesn't have mktemp(), define NO_MKTEMP to do it the hard way. + * (If you don't have , also define NO_ERRNO_H.) + * + * 4. You probably want to define NEED_SIGNAL_CATCHER so that cjpeg.c/djpeg.c + * will cause the temp files to be removed if you stop the program early. + */ + +#ifndef TEMP_DIRECTORY /* can override from jconfig.h or Makefile */ +#define TEMP_DIRECTORY "/usr/tmp/" /* recommended setting for Unix */ +#endif + +static int next_file_num; /* to distinguish among several temp files */ + +#ifdef NO_MKTEMP + +#ifndef TEMP_FILE_NAME /* can override from jconfig.h or Makefile */ +#define TEMP_FILE_NAME "%sJPG%03d.TMP" +#endif + +#ifndef NO_ERRNO_H +#include /* to define ENOENT */ +#endif + +/* ANSI C specifies that errno is a macro, but on older systems it's more + * likely to be a plain int variable. And not all versions of errno.h + * bother to declare it, so we have to in order to be most portable. Thus: + */ +#ifndef errno +extern int errno; +#endif + + +LOCAL(void) +select_file_name (char * fname) +{ + FILE * tfile; + + /* Keep generating file names till we find one that's not in use */ + for (;;) { + next_file_num++; /* advance counter */ + sprintf(fname, TEMP_FILE_NAME, TEMP_DIRECTORY, next_file_num); + if ((tfile = fopen(fname, READ_BINARY)) == NULL) { + /* fopen could have failed for a reason other than the file not + * being there; for example, file there but unreadable. + * If isn't available, then we cannot test the cause. + */ +#ifdef ENOENT + if (errno != ENOENT) + continue; +#endif + break; + } + fclose(tfile); /* oops, it's there; close tfile & try again */ + } +} + +#else /* ! NO_MKTEMP */ + +/* Note that mktemp() requires the initial filename to end in six X's */ +#ifndef TEMP_FILE_NAME /* can override from jconfig.h or Makefile */ +#define TEMP_FILE_NAME "%sJPG%dXXXXXX" +#endif + +LOCAL(void) +select_file_name (char * fname) +{ + next_file_num++; /* advance counter */ + sprintf(fname, TEMP_FILE_NAME, TEMP_DIRECTORY, next_file_num); + mktemp(fname); /* make sure file name is unique */ + /* mktemp replaces the trailing XXXXXX with a unique string of characters */ +} + +#endif /* NO_MKTEMP */ + + +/* + * Memory allocation and freeing are controlled by the regular library + * routines malloc() and free(). + */ + +GLOBAL(void *) +jpeg_get_small (j_common_ptr cinfo, size_t sizeofobject) +{ + return (void *) malloc(sizeofobject); +} + +GLOBAL(void) +jpeg_free_small (j_common_ptr cinfo, void * object, size_t sizeofobject) +{ + free(object); +} + + +/* + * "Large" objects are treated the same as "small" ones. + * NB: although we include FAR keywords in the routine declarations, + * this file won't actually work in 80x86 small/medium model; at least, + * you probably won't be able to process useful-size images in only 64KB. + */ + +GLOBAL(void FAR *) +jpeg_get_large (j_common_ptr cinfo, size_t sizeofobject) +{ + return (void FAR *) malloc(sizeofobject); +} + +GLOBAL(void) +jpeg_free_large (j_common_ptr cinfo, void FAR * object, size_t sizeofobject) +{ + free(object); +} + + +/* + * This routine computes the total memory space available for allocation. + * It's impossible to do this in a portable way; our current solution is + * to make the user tell us (with a default value set at compile time). + * If you can actually get the available space, it's a good idea to subtract + * a slop factor of 5% or so. + */ + +#ifndef DEFAULT_MAX_MEM /* so can override from makefile */ +#define DEFAULT_MAX_MEM 1000000L /* default: one megabyte */ +#endif + +GLOBAL(long) +jpeg_mem_available (j_common_ptr cinfo, long min_bytes_needed, + long max_bytes_needed, long already_allocated) +{ + return cinfo->mem->max_memory_to_use - already_allocated; +} + + +/* + * Backing store (temporary file) management. + * Backing store objects are only used when the value returned by + * jpeg_mem_available is less than the total space needed. You can dispense + * with these routines if you have plenty of virtual memory; see jmemnobs.c. + */ + + +METHODDEF(void) +read_backing_store (j_common_ptr cinfo, backing_store_ptr info, + void FAR * buffer_address, + long file_offset, long byte_count) +{ + if (fseek(info->temp_file, file_offset, SEEK_SET)) + ERREXIT(cinfo, JERR_TFILE_SEEK); + if (JFREAD(info->temp_file, buffer_address, byte_count) + != (size_t) byte_count) + ERREXIT(cinfo, JERR_TFILE_READ); +} + + +METHODDEF(void) +write_backing_store (j_common_ptr cinfo, backing_store_ptr info, + void FAR * buffer_address, + long file_offset, long byte_count) +{ + if (fseek(info->temp_file, file_offset, SEEK_SET)) + ERREXIT(cinfo, JERR_TFILE_SEEK); + if (JFWRITE(info->temp_file, buffer_address, byte_count) + != (size_t) byte_count) + ERREXIT(cinfo, JERR_TFILE_WRITE); +} + + +METHODDEF(void) +close_backing_store (j_common_ptr cinfo, backing_store_ptr info) +{ + fclose(info->temp_file); /* close the file */ + unlink(info->temp_name); /* delete the file */ +/* If your system doesn't have unlink(), use remove() instead. + * remove() is the ANSI-standard name for this function, but if + * your system was ANSI you'd be using jmemansi.c, right? + */ + TRACEMSS(cinfo, 1, JTRC_TFILE_CLOSE, info->temp_name); +} + + +/* + * Initial opening of a backing-store object. + */ + +GLOBAL(void) +jpeg_open_backing_store (j_common_ptr cinfo, backing_store_ptr info, + long total_bytes_needed) +{ + select_file_name(info->temp_name); + if ((info->temp_file = fopen(info->temp_name, RW_BINARY)) == NULL) + ERREXITS(cinfo, JERR_TFILE_CREATE, info->temp_name); + info->read_backing_store = read_backing_store; + info->write_backing_store = write_backing_store; + info->close_backing_store = close_backing_store; + TRACEMSS(cinfo, 1, JTRC_TFILE_OPEN, info->temp_name); +} + + +/* + * These routines take care of any system-dependent initialization and + * cleanup required. + */ + +GLOBAL(long) +jpeg_mem_init (j_common_ptr cinfo) +{ + next_file_num = 0; /* initialize temp file name generator */ + return DEFAULT_MAX_MEM; /* default for max_memory_to_use */ +} + +GLOBAL(void) +jpeg_mem_term (j_common_ptr cinfo) +{ + /* no work */ +} diff --git a/jpeg/jmemnobs.c b/jpeg/jmemnobs.c new file mode 100644 index 0000000..eb8c337 --- /dev/null +++ b/jpeg/jmemnobs.c @@ -0,0 +1,109 @@ +/* + * jmemnobs.c + * + * Copyright (C) 1992-1996, Thomas G. Lane. + * This file is part of the Independent JPEG Group's software. + * For conditions of distribution and use, see the accompanying README file. + * + * This file provides a really simple implementation of the system- + * dependent portion of the JPEG memory manager. This implementation + * assumes that no backing-store files are needed: all required space + * can be obtained from malloc(). + * This is very portable in the sense that it'll compile on almost anything, + * but you'd better have lots of main memory (or virtual memory) if you want + * to process big images. + * Note that the max_memory_to_use option is ignored by this implementation. + */ + +#define JPEG_INTERNALS +#include "jinclude.h" +#include "jpeglib.h" +#include "jmemsys.h" /* import the system-dependent declarations */ + +#ifndef HAVE_STDLIB_H /* should declare malloc(),free() */ +extern void * malloc JPP((size_t size)); +extern void free JPP((void *ptr)); +#endif + + +/* + * Memory allocation and freeing are controlled by the regular library + * routines malloc() and free(). + */ + +GLOBAL(void *) +jpeg_get_small (j_common_ptr cinfo, size_t sizeofobject) +{ + return (void *) malloc(sizeofobject); +} + +GLOBAL(void) +jpeg_free_small (j_common_ptr cinfo, void * object, size_t sizeofobject) +{ + free(object); +} + + +/* + * "Large" objects are treated the same as "small" ones. + * NB: although we include FAR keywords in the routine declarations, + * this file won't actually work in 80x86 small/medium model; at least, + * you probably won't be able to process useful-size images in only 64KB. + */ + +GLOBAL(void FAR *) +jpeg_get_large (j_common_ptr cinfo, size_t sizeofobject) +{ + return (void FAR *) malloc(sizeofobject); +} + +GLOBAL(void) +jpeg_free_large (j_common_ptr cinfo, void FAR * object, size_t sizeofobject) +{ + free(object); +} + + +/* + * This routine computes the total memory space available for allocation. + * Here we always say, "we got all you want bud!" + */ + +GLOBAL(long) +jpeg_mem_available (j_common_ptr cinfo, long min_bytes_needed, + long max_bytes_needed, long already_allocated) +{ + return max_bytes_needed; +} + + +/* + * Backing store (temporary file) management. + * Since jpeg_mem_available always promised the moon, + * this should never be called and we can just error out. + */ + +GLOBAL(void) +jpeg_open_backing_store (j_common_ptr cinfo, backing_store_ptr info, + long total_bytes_needed) +{ + ERREXIT(cinfo, JERR_NO_BACKING_STORE); +} + + +/* + * These routines take care of any system-dependent initialization and + * cleanup required. Here, there isn't any. + */ + +GLOBAL(long) +jpeg_mem_init (j_common_ptr cinfo) +{ + return 0; /* just set max_memory_to_use to 0 */ +} + +GLOBAL(void) +jpeg_mem_term (j_common_ptr cinfo) +{ + /* no work */ +} diff --git a/jpeg/jmemsys.h b/jpeg/jmemsys.h new file mode 100644 index 0000000..6c3c6d3 --- /dev/null +++ b/jpeg/jmemsys.h @@ -0,0 +1,198 @@ +/* + * jmemsys.h + * + * Copyright (C) 1992-1997, Thomas G. Lane. + * This file is part of the Independent JPEG Group's software. + * For conditions of distribution and use, see the accompanying README file. + * + * This include file defines the interface between the system-independent + * and system-dependent portions of the JPEG memory manager. No other + * modules need include it. (The system-independent portion is jmemmgr.c; + * there are several different versions of the system-dependent portion.) + * + * This file works as-is for the system-dependent memory managers supplied + * in the IJG distribution. You may need to modify it if you write a + * custom memory manager. If system-dependent changes are needed in + * this file, the best method is to #ifdef them based on a configuration + * symbol supplied in jconfig.h, as we have done with USE_MSDOS_MEMMGR + * and USE_MAC_MEMMGR. + */ + + +/* Short forms of external names for systems with brain-damaged linkers. */ + +#ifdef NEED_SHORT_EXTERNAL_NAMES +#define jpeg_get_small jGetSmall +#define jpeg_free_small jFreeSmall +#define jpeg_get_large jGetLarge +#define jpeg_free_large jFreeLarge +#define jpeg_mem_available jMemAvail +#define jpeg_open_backing_store jOpenBackStore +#define jpeg_mem_init jMemInit +#define jpeg_mem_term jMemTerm +#endif /* NEED_SHORT_EXTERNAL_NAMES */ + + +/* + * These two functions are used to allocate and release small chunks of + * memory. (Typically the total amount requested through jpeg_get_small is + * no more than 20K or so; this will be requested in chunks of a few K each.) + * Behavior should be the same as for the standard library functions malloc + * and free; in particular, jpeg_get_small must return NULL on failure. + * On most systems, these ARE malloc and free. jpeg_free_small is passed the + * size of the object being freed, just in case it's needed. + * On an 80x86 machine using small-data memory model, these manage near heap. + */ + +EXTERN(void *) jpeg_get_small JPP((j_common_ptr cinfo, size_t sizeofobject)); +EXTERN(void) jpeg_free_small JPP((j_common_ptr cinfo, void * object, + size_t sizeofobject)); + +/* + * These two functions are used to allocate and release large chunks of + * memory (up to the total free space designated by jpeg_mem_available). + * The interface is the same as above, except that on an 80x86 machine, + * far pointers are used. On most other machines these are identical to + * the jpeg_get/free_small routines; but we keep them separate anyway, + * in case a different allocation strategy is desirable for large chunks. + */ + +EXTERN(void FAR *) jpeg_get_large JPP((j_common_ptr cinfo, + size_t sizeofobject)); +EXTERN(void) jpeg_free_large JPP((j_common_ptr cinfo, void FAR * object, + size_t sizeofobject)); + +/* + * The macro MAX_ALLOC_CHUNK designates the maximum number of bytes that may + * be requested in a single call to jpeg_get_large (and jpeg_get_small for that + * matter, but that case should never come into play). This macro is needed + * to model the 64Kb-segment-size limit of far addressing on 80x86 machines. + * On those machines, we expect that jconfig.h will provide a proper value. + * On machines with 32-bit flat address spaces, any large constant may be used. + * + * NB: jmemmgr.c expects that MAX_ALLOC_CHUNK will be representable as type + * size_t and will be a multiple of sizeof(align_type). + */ + +#ifndef MAX_ALLOC_CHUNK /* may be overridden in jconfig.h */ +#define MAX_ALLOC_CHUNK 1000000000L +#endif + +/* + * This routine computes the total space still available for allocation by + * jpeg_get_large. If more space than this is needed, backing store will be + * used. NOTE: any memory already allocated must not be counted. + * + * There is a minimum space requirement, corresponding to the minimum + * feasible buffer sizes; jmemmgr.c will request that much space even if + * jpeg_mem_available returns zero. The maximum space needed, enough to hold + * all working storage in memory, is also passed in case it is useful. + * Finally, the total space already allocated is passed. If no better + * method is available, cinfo->mem->max_memory_to_use - already_allocated + * is often a suitable calculation. + * + * It is OK for jpeg_mem_available to underestimate the space available + * (that'll just lead to more backing-store access than is really necessary). + * However, an overestimate will lead to failure. Hence it's wise to subtract + * a slop factor from the true available space. 5% should be enough. + * + * On machines with lots of virtual memory, any large constant may be returned. + * Conversely, zero may be returned to always use the minimum amount of memory. + */ + +EXTERN(long) jpeg_mem_available JPP((j_common_ptr cinfo, + long min_bytes_needed, + long max_bytes_needed, + long already_allocated)); + + +/* + * This structure holds whatever state is needed to access a single + * backing-store object. The read/write/close method pointers are called + * by jmemmgr.c to manipulate the backing-store object; all other fields + * are private to the system-dependent backing store routines. + */ + +#define TEMP_NAME_LENGTH 64 /* max length of a temporary file's name */ + + +#ifdef USE_MSDOS_MEMMGR /* DOS-specific junk */ + +typedef unsigned short XMSH; /* type of extended-memory handles */ +typedef unsigned short EMSH; /* type of expanded-memory handles */ + +typedef union { + short file_handle; /* DOS file handle if it's a temp file */ + XMSH xms_handle; /* handle if it's a chunk of XMS */ + EMSH ems_handle; /* handle if it's a chunk of EMS */ +} handle_union; + +#endif /* USE_MSDOS_MEMMGR */ + +#ifdef USE_MAC_MEMMGR /* Mac-specific junk */ +#include +#endif /* USE_MAC_MEMMGR */ + + +typedef struct backing_store_struct * backing_store_ptr; + +typedef struct backing_store_struct { + /* Methods for reading/writing/closing this backing-store object */ + JMETHOD(void, read_backing_store, (j_common_ptr cinfo, + backing_store_ptr info, + void FAR * buffer_address, + long file_offset, long byte_count)); + JMETHOD(void, write_backing_store, (j_common_ptr cinfo, + backing_store_ptr info, + void FAR * buffer_address, + long file_offset, long byte_count)); + JMETHOD(void, close_backing_store, (j_common_ptr cinfo, + backing_store_ptr info)); + + /* Private fields for system-dependent backing-store management */ +#ifdef USE_MSDOS_MEMMGR + /* For the MS-DOS manager (jmemdos.c), we need: */ + handle_union handle; /* reference to backing-store storage object */ + char temp_name[TEMP_NAME_LENGTH]; /* name if it's a file */ +#else +#ifdef USE_MAC_MEMMGR + /* For the Mac manager (jmemmac.c), we need: */ + short temp_file; /* file reference number to temp file */ + FSSpec tempSpec; /* the FSSpec for the temp file */ + char temp_name[TEMP_NAME_LENGTH]; /* name if it's a file */ +#else + /* For a typical implementation with temp files, we need: */ + FILE * temp_file; /* stdio reference to temp file */ + char temp_name[TEMP_NAME_LENGTH]; /* name of temp file */ +#endif +#endif +} backing_store_info; + + +/* + * Initial opening of a backing-store object. This must fill in the + * read/write/close pointers in the object. The read/write routines + * may take an error exit if the specified maximum file size is exceeded. + * (If jpeg_mem_available always returns a large value, this routine can + * just take an error exit.) + */ + +EXTERN(void) jpeg_open_backing_store JPP((j_common_ptr cinfo, + backing_store_ptr info, + long total_bytes_needed)); + + +/* + * These routines take care of any system-dependent initialization and + * cleanup required. jpeg_mem_init will be called before anything is + * allocated (and, therefore, nothing in cinfo is of use except the error + * manager pointer). It should return a suitable default value for + * max_memory_to_use; this may subsequently be overridden by the surrounding + * application. (Note that max_memory_to_use is only important if + * jpeg_mem_available chooses to consult it ... no one else will.) + * jpeg_mem_term may assume that all requested memory has been freed and that + * all opened backing-store objects have been closed. + */ + +EXTERN(long) jpeg_mem_init JPP((j_common_ptr cinfo)); +EXTERN(void) jpeg_mem_term JPP((j_common_ptr cinfo)); diff --git a/jpeg/jmorecfg.h b/jpeg/jmorecfg.h new file mode 100644 index 0000000..6c085c3 --- /dev/null +++ b/jpeg/jmorecfg.h @@ -0,0 +1,369 @@ +/* + * jmorecfg.h + * + * Copyright (C) 1991-1997, Thomas G. Lane. + * Modified 1997-2011 by Guido Vollbeding. + * This file is part of the Independent JPEG Group's software. + * For conditions of distribution and use, see the accompanying README file. + * + * This file contains additional configuration options that customize the + * JPEG software for special applications or support machine-dependent + * optimizations. Most users will not need to touch this file. + */ + + +/* + * Define BITS_IN_JSAMPLE as either + * 8 for 8-bit sample values (the usual setting) + * 12 for 12-bit sample values + * Only 8 and 12 are legal data precisions for lossy JPEG according to the + * JPEG standard, and the IJG code does not support anything else! + * We do not support run-time selection of data precision, sorry. + */ + +#define BITS_IN_JSAMPLE 8 /* use 8 or 12 */ + + +/* + * Maximum number of components (color channels) allowed in JPEG image. + * To meet the letter of the JPEG spec, set this to 255. However, darn + * few applications need more than 4 channels (maybe 5 for CMYK + alpha + * mask). We recommend 10 as a reasonable compromise; use 4 if you are + * really short on memory. (Each allowed component costs a hundred or so + * bytes of storage, whether actually used in an image or not.) + */ + +#define MAX_COMPONENTS 10 /* maximum number of image components */ + + +/* + * Basic data types. + * You may need to change these if you have a machine with unusual data + * type sizes; for example, "char" not 8 bits, "short" not 16 bits, + * or "long" not 32 bits. We don't care whether "int" is 16 or 32 bits, + * but it had better be at least 16. + */ + +/* Representation of a single sample (pixel element value). + * We frequently allocate large arrays of these, so it's important to keep + * them small. But if you have memory to burn and access to char or short + * arrays is very slow on your hardware, you might want to change these. + */ + +#if BITS_IN_JSAMPLE == 8 +/* JSAMPLE should be the smallest type that will hold the values 0..255. + * You can use a signed char by having GETJSAMPLE mask it with 0xFF. + */ + +#ifdef HAVE_UNSIGNED_CHAR + +typedef unsigned char JSAMPLE; +#define GETJSAMPLE(value) ((int) (value)) + +#else /* not HAVE_UNSIGNED_CHAR */ + +typedef char JSAMPLE; +#ifdef CHAR_IS_UNSIGNED +#define GETJSAMPLE(value) ((int) (value)) +#else +#define GETJSAMPLE(value) ((int) (value) & 0xFF) +#endif /* CHAR_IS_UNSIGNED */ + +#endif /* HAVE_UNSIGNED_CHAR */ + +#define MAXJSAMPLE 255 +#define CENTERJSAMPLE 128 + +#endif /* BITS_IN_JSAMPLE == 8 */ + + +#if BITS_IN_JSAMPLE == 12 +/* JSAMPLE should be the smallest type that will hold the values 0..4095. + * On nearly all machines "short" will do nicely. + */ + +typedef short JSAMPLE; +#define GETJSAMPLE(value) ((int) (value)) + +#define MAXJSAMPLE 4095 +#define CENTERJSAMPLE 2048 + +#endif /* BITS_IN_JSAMPLE == 12 */ + + +/* Representation of a DCT frequency coefficient. + * This should be a signed value of at least 16 bits; "short" is usually OK. + * Again, we allocate large arrays of these, but you can change to int + * if you have memory to burn and "short" is really slow. + */ + +typedef short JCOEF; + + +/* Compressed datastreams are represented as arrays of JOCTET. + * These must be EXACTLY 8 bits wide, at least once they are written to + * external storage. Note that when using the stdio data source/destination + * managers, this is also the data type passed to fread/fwrite. + */ + +#ifdef HAVE_UNSIGNED_CHAR + +typedef unsigned char JOCTET; +#define GETJOCTET(value) (value) + +#else /* not HAVE_UNSIGNED_CHAR */ + +typedef char JOCTET; +#ifdef CHAR_IS_UNSIGNED +#define GETJOCTET(value) (value) +#else +#define GETJOCTET(value) ((value) & 0xFF) +#endif /* CHAR_IS_UNSIGNED */ + +#endif /* HAVE_UNSIGNED_CHAR */ + + +/* These typedefs are used for various table entries and so forth. + * They must be at least as wide as specified; but making them too big + * won't cost a huge amount of memory, so we don't provide special + * extraction code like we did for JSAMPLE. (In other words, these + * typedefs live at a different point on the speed/space tradeoff curve.) + */ + +/* UINT8 must hold at least the values 0..255. */ + +#ifdef HAVE_UNSIGNED_CHAR +typedef unsigned char UINT8; +#else /* not HAVE_UNSIGNED_CHAR */ +#ifdef CHAR_IS_UNSIGNED +typedef char UINT8; +#else /* not CHAR_IS_UNSIGNED */ +typedef short UINT8; +#endif /* CHAR_IS_UNSIGNED */ +#endif /* HAVE_UNSIGNED_CHAR */ + +/* UINT16 must hold at least the values 0..65535. */ + +#ifdef HAVE_UNSIGNED_SHORT +typedef unsigned short UINT16; +#else /* not HAVE_UNSIGNED_SHORT */ +typedef unsigned int UINT16; +#endif /* HAVE_UNSIGNED_SHORT */ + +/* INT16 must hold at least the values -32768..32767. */ + +#ifndef XMD_H /* X11/xmd.h correctly defines INT16 */ +typedef short INT16; +#endif + +/* INT32 must hold at least signed 32-bit values. */ + +#ifndef XMD_H /* X11/xmd.h correctly defines INT32 */ +#ifndef _BASETSD_H_ /* Microsoft defines it in basetsd.h */ +#ifndef _BASETSD_H /* MinGW is slightly different */ +#ifndef QGLOBAL_H /* Qt defines it in qglobal.h */ +typedef long INT32; +#endif +#endif +#endif +#endif + +/* Datatype used for image dimensions. The JPEG standard only supports + * images up to 64K*64K due to 16-bit fields in SOF markers. Therefore + * "unsigned int" is sufficient on all machines. However, if you need to + * handle larger images and you don't mind deviating from the spec, you + * can change this datatype. + */ + +typedef unsigned int JDIMENSION; + +#define JPEG_MAX_DIMENSION 65500L /* a tad under 64K to prevent overflows */ + + +/* These macros are used in all function definitions and extern declarations. + * You could modify them if you need to change function linkage conventions; + * in particular, you'll need to do that to make the library a Windows DLL. + * Another application is to make all functions global for use with debuggers + * or code profilers that require it. + */ + +/* a function called through method pointers: */ +#define METHODDEF(type) static type +/* a function used only in its module: */ +#define LOCAL(type) static type +/* a function referenced thru EXTERNs: */ +#define GLOBAL(type) type +/* a reference to a GLOBAL function: */ +#define EXTERN(type) extern type + + +/* This macro is used to declare a "method", that is, a function pointer. + * We want to supply prototype parameters if the compiler can cope. + * Note that the arglist parameter must be parenthesized! + * Again, you can customize this if you need special linkage keywords. + */ + +#ifdef HAVE_PROTOTYPES +#define JMETHOD(type,methodname,arglist) type (*methodname) arglist +#else +#define JMETHOD(type,methodname,arglist) type (*methodname) () +#endif + + +/* Here is the pseudo-keyword for declaring pointers that must be "far" + * on 80x86 machines. Most of the specialized coding for 80x86 is handled + * by just saying "FAR *" where such a pointer is needed. In a few places + * explicit coding is needed; see uses of the NEED_FAR_POINTERS symbol. + */ + +#ifndef FAR +#ifdef NEED_FAR_POINTERS +#define FAR far +#else +#define FAR +#endif +#endif + + +/* + * On a few systems, type boolean and/or its values FALSE, TRUE may appear + * in standard header files. Or you may have conflicts with application- + * specific header files that you want to include together with these files. + * Defining HAVE_BOOLEAN before including jpeglib.h should make it work. + */ + +#ifndef HAVE_BOOLEAN +typedef int boolean; +#endif +#ifndef FALSE /* in case these macros already exist */ +#define FALSE 0 /* values of boolean */ +#endif +#ifndef TRUE +#define TRUE 1 +#endif + + +/* + * The remaining options affect code selection within the JPEG library, + * but they don't need to be visible to most applications using the library. + * To minimize application namespace pollution, the symbols won't be + * defined unless JPEG_INTERNALS or JPEG_INTERNAL_OPTIONS has been defined. + */ + +#ifdef JPEG_INTERNALS +#define JPEG_INTERNAL_OPTIONS +#endif + +#ifdef JPEG_INTERNAL_OPTIONS + + +/* + * These defines indicate whether to include various optional functions. + * Undefining some of these symbols will produce a smaller but less capable + * library. Note that you can leave certain source files out of the + * compilation/linking process if you've #undef'd the corresponding symbols. + * (You may HAVE to do that if your compiler doesn't like null source files.) + */ + +/* Capability options common to encoder and decoder: */ + +#define DCT_ISLOW_SUPPORTED /* slow but accurate integer algorithm */ +#define DCT_IFAST_SUPPORTED /* faster, less accurate integer method */ +#define DCT_FLOAT_SUPPORTED /* floating-point: accurate, fast on fast HW */ + +/* Encoder capability options: */ + +#define C_ARITH_CODING_SUPPORTED /* Arithmetic coding back end? */ +#define C_MULTISCAN_FILES_SUPPORTED /* Multiple-scan JPEG files? */ +#define C_PROGRESSIVE_SUPPORTED /* Progressive JPEG? (Requires MULTISCAN)*/ +#define DCT_SCALING_SUPPORTED /* Input rescaling via DCT? (Requires DCT_ISLOW)*/ +#define ENTROPY_OPT_SUPPORTED /* Optimization of entropy coding parms? */ +/* Note: if you selected 12-bit data precision, it is dangerous to turn off + * ENTROPY_OPT_SUPPORTED. The standard Huffman tables are only good for 8-bit + * precision, so jchuff.c normally uses entropy optimization to compute + * usable tables for higher precision. If you don't want to do optimization, + * you'll have to supply different default Huffman tables. + * The exact same statements apply for progressive JPEG: the default tables + * don't work for progressive mode. (This may get fixed, however.) + */ +#define INPUT_SMOOTHING_SUPPORTED /* Input image smoothing option? */ + +/* Decoder capability options: */ + +#define D_ARITH_CODING_SUPPORTED /* Arithmetic coding back end? */ +#define D_MULTISCAN_FILES_SUPPORTED /* Multiple-scan JPEG files? */ +#define D_PROGRESSIVE_SUPPORTED /* Progressive JPEG? (Requires MULTISCAN)*/ +#define IDCT_SCALING_SUPPORTED /* Output rescaling via IDCT? */ +#define SAVE_MARKERS_SUPPORTED /* jpeg_save_markers() needed? */ +#define BLOCK_SMOOTHING_SUPPORTED /* Block smoothing? (Progressive only) */ +#undef UPSAMPLE_SCALING_SUPPORTED /* Output rescaling at upsample stage? */ +#define UPSAMPLE_MERGING_SUPPORTED /* Fast path for sloppy upsampling? */ +#define QUANT_1PASS_SUPPORTED /* 1-pass color quantization? */ +#define QUANT_2PASS_SUPPORTED /* 2-pass color quantization? */ + +/* more capability options later, no doubt */ + + +/* + * Ordering of RGB data in scanlines passed to or from the application. + * If your application wants to deal with data in the order B,G,R, just + * change these macros. You can also deal with formats such as R,G,B,X + * (one extra byte per pixel) by changing RGB_PIXELSIZE. Note that changing + * the offsets will also change the order in which colormap data is organized. + * RESTRICTIONS: + * 1. The sample applications cjpeg,djpeg do NOT support modified RGB formats. + * 2. The color quantizer modules will not behave desirably if RGB_PIXELSIZE + * is not 3 (they don't understand about dummy color components!). So you + * can't use color quantization if you change that value. + */ + +#define RGB_RED 0 /* Offset of Red in an RGB scanline element */ +#define RGB_GREEN 1 /* Offset of Green */ +#define RGB_BLUE 2 /* Offset of Blue */ +#define RGB_PIXELSIZE 3 /* JSAMPLEs per RGB scanline element */ + + +/* Definitions for speed-related optimizations. */ + + +/* If your compiler supports inline functions, define INLINE + * as the inline keyword; otherwise define it as empty. + */ + +#ifndef INLINE +#ifdef __GNUC__ /* for instance, GNU C knows about inline */ +#define INLINE __inline__ +#endif +#ifndef INLINE +#define INLINE /* default is to define it as empty */ +#endif +#endif + + +/* On some machines (notably 68000 series) "int" is 32 bits, but multiplying + * two 16-bit shorts is faster than multiplying two ints. Define MULTIPLIER + * as short on such a machine. MULTIPLIER must be at least 16 bits wide. + */ + +#ifndef MULTIPLIER +#define MULTIPLIER int /* type for fastest integer multiply */ +#endif + + +/* FAST_FLOAT should be either float or double, whichever is done faster + * by your compiler. (Note that this type is only used in the floating point + * DCT routines, so it only matters if you've defined DCT_FLOAT_SUPPORTED.) + * Typically, float is faster in ANSI C compilers, while double is faster in + * pre-ANSI compilers (because they insist on converting to double anyway). + * The code below therefore chooses float if we have ANSI-style prototypes. + */ + +#ifndef FAST_FLOAT +#ifdef HAVE_PROTOTYPES +#define FAST_FLOAT float +#else +#define FAST_FLOAT double +#endif +#endif + +#endif /* JPEG_INTERNAL_OPTIONS */ diff --git a/jpeg/jpegint.h b/jpeg/jpegint.h new file mode 100644 index 0000000..c0d5c14 --- /dev/null +++ b/jpeg/jpegint.h @@ -0,0 +1,426 @@ +/* + * jpegint.h + * + * Copyright (C) 1991-1997, Thomas G. Lane. + * Modified 1997-2011 by Guido Vollbeding. + * This file is part of the Independent JPEG Group's software. + * For conditions of distribution and use, see the accompanying README file. + * + * This file provides common declarations for the various JPEG modules. + * These declarations are considered internal to the JPEG library; most + * applications using the library shouldn't need to include this file. + */ + + +/* Declarations for both compression & decompression */ + +typedef enum { /* Operating modes for buffer controllers */ + JBUF_PASS_THRU, /* Plain stripwise operation */ + /* Remaining modes require a full-image buffer to have been created */ + JBUF_SAVE_SOURCE, /* Run source subobject only, save output */ + JBUF_CRANK_DEST, /* Run dest subobject only, using saved data */ + JBUF_SAVE_AND_PASS /* Run both subobjects, save output */ +} J_BUF_MODE; + +/* Values of global_state field (jdapi.c has some dependencies on ordering!) */ +#define CSTATE_START 100 /* after create_compress */ +#define CSTATE_SCANNING 101 /* start_compress done, write_scanlines OK */ +#define CSTATE_RAW_OK 102 /* start_compress done, write_raw_data OK */ +#define CSTATE_WRCOEFS 103 /* jpeg_write_coefficients done */ +#define DSTATE_START 200 /* after create_decompress */ +#define DSTATE_INHEADER 201 /* reading header markers, no SOS yet */ +#define DSTATE_READY 202 /* found SOS, ready for start_decompress */ +#define DSTATE_PRELOAD 203 /* reading multiscan file in start_decompress*/ +#define DSTATE_PRESCAN 204 /* performing dummy pass for 2-pass quant */ +#define DSTATE_SCANNING 205 /* start_decompress done, read_scanlines OK */ +#define DSTATE_RAW_OK 206 /* start_decompress done, read_raw_data OK */ +#define DSTATE_BUFIMAGE 207 /* expecting jpeg_start_output */ +#define DSTATE_BUFPOST 208 /* looking for SOS/EOI in jpeg_finish_output */ +#define DSTATE_RDCOEFS 209 /* reading file in jpeg_read_coefficients */ +#define DSTATE_STOPPING 210 /* looking for EOI in jpeg_finish_decompress */ + + +/* Declarations for compression modules */ + +/* Master control module */ +struct jpeg_comp_master { + JMETHOD(void, prepare_for_pass, (j_compress_ptr cinfo)); + JMETHOD(void, pass_startup, (j_compress_ptr cinfo)); + JMETHOD(void, finish_pass, (j_compress_ptr cinfo)); + + /* State variables made visible to other modules */ + boolean call_pass_startup; /* True if pass_startup must be called */ + boolean is_last_pass; /* True during last pass */ +}; + +/* Main buffer control (downsampled-data buffer) */ +struct jpeg_c_main_controller { + JMETHOD(void, start_pass, (j_compress_ptr cinfo, J_BUF_MODE pass_mode)); + JMETHOD(void, process_data, (j_compress_ptr cinfo, + JSAMPARRAY input_buf, JDIMENSION *in_row_ctr, + JDIMENSION in_rows_avail)); +}; + +/* Compression preprocessing (downsampling input buffer control) */ +struct jpeg_c_prep_controller { + JMETHOD(void, start_pass, (j_compress_ptr cinfo, J_BUF_MODE pass_mode)); + JMETHOD(void, pre_process_data, (j_compress_ptr cinfo, + JSAMPARRAY input_buf, + JDIMENSION *in_row_ctr, + JDIMENSION in_rows_avail, + JSAMPIMAGE output_buf, + JDIMENSION *out_row_group_ctr, + JDIMENSION out_row_groups_avail)); +}; + +/* Coefficient buffer control */ +struct jpeg_c_coef_controller { + JMETHOD(void, start_pass, (j_compress_ptr cinfo, J_BUF_MODE pass_mode)); + JMETHOD(boolean, compress_data, (j_compress_ptr cinfo, + JSAMPIMAGE input_buf)); +}; + +/* Colorspace conversion */ +struct jpeg_color_converter { + JMETHOD(void, start_pass, (j_compress_ptr cinfo)); + JMETHOD(void, color_convert, (j_compress_ptr cinfo, + JSAMPARRAY input_buf, JSAMPIMAGE output_buf, + JDIMENSION output_row, int num_rows)); +}; + +/* Downsampling */ +struct jpeg_downsampler { + JMETHOD(void, start_pass, (j_compress_ptr cinfo)); + JMETHOD(void, downsample, (j_compress_ptr cinfo, + JSAMPIMAGE input_buf, JDIMENSION in_row_index, + JSAMPIMAGE output_buf, + JDIMENSION out_row_group_index)); + + boolean need_context_rows; /* TRUE if need rows above & below */ +}; + +/* Forward DCT (also controls coefficient quantization) */ +typedef JMETHOD(void, forward_DCT_ptr, + (j_compress_ptr cinfo, jpeg_component_info * compptr, + JSAMPARRAY sample_data, JBLOCKROW coef_blocks, + JDIMENSION start_row, JDIMENSION start_col, + JDIMENSION num_blocks)); + +struct jpeg_forward_dct { + JMETHOD(void, start_pass, (j_compress_ptr cinfo)); + /* It is useful to allow each component to have a separate FDCT method. */ + forward_DCT_ptr forward_DCT[MAX_COMPONENTS]; +}; + +/* Entropy encoding */ +struct jpeg_entropy_encoder { + JMETHOD(void, start_pass, (j_compress_ptr cinfo, boolean gather_statistics)); + JMETHOD(boolean, encode_mcu, (j_compress_ptr cinfo, JBLOCKROW *MCU_data)); + JMETHOD(void, finish_pass, (j_compress_ptr cinfo)); +}; + +/* Marker writing */ +struct jpeg_marker_writer { + JMETHOD(void, write_file_header, (j_compress_ptr cinfo)); + JMETHOD(void, write_frame_header, (j_compress_ptr cinfo)); + JMETHOD(void, write_scan_header, (j_compress_ptr cinfo)); + JMETHOD(void, write_file_trailer, (j_compress_ptr cinfo)); + JMETHOD(void, write_tables_only, (j_compress_ptr cinfo)); + /* These routines are exported to allow insertion of extra markers */ + /* Probably only COM and APPn markers should be written this way */ + JMETHOD(void, write_marker_header, (j_compress_ptr cinfo, int marker, + unsigned int datalen)); + JMETHOD(void, write_marker_byte, (j_compress_ptr cinfo, int val)); +}; + + +/* Declarations for decompression modules */ + +/* Master control module */ +struct jpeg_decomp_master { + JMETHOD(void, prepare_for_output_pass, (j_decompress_ptr cinfo)); + JMETHOD(void, finish_output_pass, (j_decompress_ptr cinfo)); + + /* State variables made visible to other modules */ + boolean is_dummy_pass; /* True during 1st pass for 2-pass quant */ +}; + +/* Input control module */ +struct jpeg_input_controller { + JMETHOD(int, consume_input, (j_decompress_ptr cinfo)); + JMETHOD(void, reset_input_controller, (j_decompress_ptr cinfo)); + JMETHOD(void, start_input_pass, (j_decompress_ptr cinfo)); + JMETHOD(void, finish_input_pass, (j_decompress_ptr cinfo)); + + /* State variables made visible to other modules */ + boolean has_multiple_scans; /* True if file has multiple scans */ + boolean eoi_reached; /* True when EOI has been consumed */ +}; + +/* Main buffer control (downsampled-data buffer) */ +struct jpeg_d_main_controller { + JMETHOD(void, start_pass, (j_decompress_ptr cinfo, J_BUF_MODE pass_mode)); + JMETHOD(void, process_data, (j_decompress_ptr cinfo, + JSAMPARRAY output_buf, JDIMENSION *out_row_ctr, + JDIMENSION out_rows_avail)); +}; + +/* Coefficient buffer control */ +struct jpeg_d_coef_controller { + JMETHOD(void, start_input_pass, (j_decompress_ptr cinfo)); + JMETHOD(int, consume_data, (j_decompress_ptr cinfo)); + JMETHOD(void, start_output_pass, (j_decompress_ptr cinfo)); + JMETHOD(int, decompress_data, (j_decompress_ptr cinfo, + JSAMPIMAGE output_buf)); + /* Pointer to array of coefficient virtual arrays, or NULL if none */ + jvirt_barray_ptr *coef_arrays; +}; + +/* Decompression postprocessing (color quantization buffer control) */ +struct jpeg_d_post_controller { + JMETHOD(void, start_pass, (j_decompress_ptr cinfo, J_BUF_MODE pass_mode)); + JMETHOD(void, post_process_data, (j_decompress_ptr cinfo, + JSAMPIMAGE input_buf, + JDIMENSION *in_row_group_ctr, + JDIMENSION in_row_groups_avail, + JSAMPARRAY output_buf, + JDIMENSION *out_row_ctr, + JDIMENSION out_rows_avail)); +}; + +/* Marker reading & parsing */ +struct jpeg_marker_reader { + JMETHOD(void, reset_marker_reader, (j_decompress_ptr cinfo)); + /* Read markers until SOS or EOI. + * Returns same codes as are defined for jpeg_consume_input: + * JPEG_SUSPENDED, JPEG_REACHED_SOS, or JPEG_REACHED_EOI. + */ + JMETHOD(int, read_markers, (j_decompress_ptr cinfo)); + /* Read a restart marker --- exported for use by entropy decoder only */ + jpeg_marker_parser_method read_restart_marker; + + /* State of marker reader --- nominally internal, but applications + * supplying COM or APPn handlers might like to know the state. + */ + boolean saw_SOI; /* found SOI? */ + boolean saw_SOF; /* found SOF? */ + int next_restart_num; /* next restart number expected (0-7) */ + unsigned int discarded_bytes; /* # of bytes skipped looking for a marker */ +}; + +/* Entropy decoding */ +struct jpeg_entropy_decoder { + JMETHOD(void, start_pass, (j_decompress_ptr cinfo)); + JMETHOD(boolean, decode_mcu, (j_decompress_ptr cinfo, + JBLOCKROW *MCU_data)); +}; + +/* Inverse DCT (also performs dequantization) */ +typedef JMETHOD(void, inverse_DCT_method_ptr, + (j_decompress_ptr cinfo, jpeg_component_info * compptr, + JCOEFPTR coef_block, + JSAMPARRAY output_buf, JDIMENSION output_col)); + +struct jpeg_inverse_dct { + JMETHOD(void, start_pass, (j_decompress_ptr cinfo)); + /* It is useful to allow each component to have a separate IDCT method. */ + inverse_DCT_method_ptr inverse_DCT[MAX_COMPONENTS]; +}; + +/* Upsampling (note that upsampler must also call color converter) */ +struct jpeg_upsampler { + JMETHOD(void, start_pass, (j_decompress_ptr cinfo)); + JMETHOD(void, upsample, (j_decompress_ptr cinfo, + JSAMPIMAGE input_buf, + JDIMENSION *in_row_group_ctr, + JDIMENSION in_row_groups_avail, + JSAMPARRAY output_buf, + JDIMENSION *out_row_ctr, + JDIMENSION out_rows_avail)); + + boolean need_context_rows; /* TRUE if need rows above & below */ +}; + +/* Colorspace conversion */ +struct jpeg_color_deconverter { + JMETHOD(void, start_pass, (j_decompress_ptr cinfo)); + JMETHOD(void, color_convert, (j_decompress_ptr cinfo, + JSAMPIMAGE input_buf, JDIMENSION input_row, + JSAMPARRAY output_buf, int num_rows)); +}; + +/* Color quantization or color precision reduction */ +struct jpeg_color_quantizer { + JMETHOD(void, start_pass, (j_decompress_ptr cinfo, boolean is_pre_scan)); + JMETHOD(void, color_quantize, (j_decompress_ptr cinfo, + JSAMPARRAY input_buf, JSAMPARRAY output_buf, + int num_rows)); + JMETHOD(void, finish_pass, (j_decompress_ptr cinfo)); + JMETHOD(void, new_color_map, (j_decompress_ptr cinfo)); +}; + + +/* Miscellaneous useful macros */ + +#undef MAX +#define MAX(a,b) ((a) > (b) ? (a) : (b)) +#undef MIN +#define MIN(a,b) ((a) < (b) ? (a) : (b)) + + +/* We assume that right shift corresponds to signed division by 2 with + * rounding towards minus infinity. This is correct for typical "arithmetic + * shift" instructions that shift in copies of the sign bit. But some + * C compilers implement >> with an unsigned shift. For these machines you + * must define RIGHT_SHIFT_IS_UNSIGNED. + * RIGHT_SHIFT provides a proper signed right shift of an INT32 quantity. + * It is only applied with constant shift counts. SHIFT_TEMPS must be + * included in the variables of any routine using RIGHT_SHIFT. + */ + +#ifdef RIGHT_SHIFT_IS_UNSIGNED +#define SHIFT_TEMPS INT32 shift_temp; +#define RIGHT_SHIFT(x,shft) \ + ((shift_temp = (x)) < 0 ? \ + (shift_temp >> (shft)) | ((~((INT32) 0)) << (32-(shft))) : \ + (shift_temp >> (shft))) +#else +#define SHIFT_TEMPS +#define RIGHT_SHIFT(x,shft) ((x) >> (shft)) +#endif + + +/* Short forms of external names for systems with brain-damaged linkers. */ + +#ifdef NEED_SHORT_EXTERNAL_NAMES +#define jinit_compress_master jICompress +#define jinit_c_master_control jICMaster +#define jinit_c_main_controller jICMainC +#define jinit_c_prep_controller jICPrepC +#define jinit_c_coef_controller jICCoefC +#define jinit_color_converter jICColor +#define jinit_downsampler jIDownsampler +#define jinit_forward_dct jIFDCT +#define jinit_huff_encoder jIHEncoder +#define jinit_arith_encoder jIAEncoder +#define jinit_marker_writer jIMWriter +#define jinit_master_decompress jIDMaster +#define jinit_d_main_controller jIDMainC +#define jinit_d_coef_controller jIDCoefC +#define jinit_d_post_controller jIDPostC +#define jinit_input_controller jIInCtlr +#define jinit_marker_reader jIMReader +#define jinit_huff_decoder jIHDecoder +#define jinit_arith_decoder jIADecoder +#define jinit_inverse_dct jIIDCT +#define jinit_upsampler jIUpsampler +#define jinit_color_deconverter jIDColor +#define jinit_1pass_quantizer jI1Quant +#define jinit_2pass_quantizer jI2Quant +#define jinit_merged_upsampler jIMUpsampler +#define jinit_memory_mgr jIMemMgr +#define jdiv_round_up jDivRound +#define jround_up jRound +#define jzero_far jZeroFar +#define jcopy_sample_rows jCopySamples +#define jcopy_block_row jCopyBlocks +#define jpeg_zigzag_order jZIGTable +#define jpeg_natural_order jZAGTable +#define jpeg_natural_order7 jZAG7Table +#define jpeg_natural_order6 jZAG6Table +#define jpeg_natural_order5 jZAG5Table +#define jpeg_natural_order4 jZAG4Table +#define jpeg_natural_order3 jZAG3Table +#define jpeg_natural_order2 jZAG2Table +#define jpeg_aritab jAriTab +#endif /* NEED_SHORT_EXTERNAL_NAMES */ + + +/* On normal machines we can apply MEMCOPY() and MEMZERO() to sample arrays + * and coefficient-block arrays. This won't work on 80x86 because the arrays + * are FAR and we're assuming a small-pointer memory model. However, some + * DOS compilers provide far-pointer versions of memcpy() and memset() even + * in the small-model libraries. These will be used if USE_FMEM is defined. + * Otherwise, the routines in jutils.c do it the hard way. + */ + +#ifndef NEED_FAR_POINTERS /* normal case, same as regular macro */ +#define FMEMZERO(target,size) MEMZERO(target,size) +#else /* 80x86 case */ +#ifdef USE_FMEM +#define FMEMZERO(target,size) _fmemset((void FAR *)(target), 0, (size_t)(size)) +#else +EXTERN(void) jzero_far JPP((void FAR * target, size_t bytestozero)); +#define FMEMZERO(target,size) jzero_far(target, size) +#endif +#endif + + +/* Compression module initialization routines */ +EXTERN(void) jinit_compress_master JPP((j_compress_ptr cinfo)); +EXTERN(void) jinit_c_master_control JPP((j_compress_ptr cinfo, + boolean transcode_only)); +EXTERN(void) jinit_c_main_controller JPP((j_compress_ptr cinfo, + boolean need_full_buffer)); +EXTERN(void) jinit_c_prep_controller JPP((j_compress_ptr cinfo, + boolean need_full_buffer)); +EXTERN(void) jinit_c_coef_controller JPP((j_compress_ptr cinfo, + boolean need_full_buffer)); +EXTERN(void) jinit_color_converter JPP((j_compress_ptr cinfo)); +EXTERN(void) jinit_downsampler JPP((j_compress_ptr cinfo)); +EXTERN(void) jinit_forward_dct JPP((j_compress_ptr cinfo)); +EXTERN(void) jinit_huff_encoder JPP((j_compress_ptr cinfo)); +EXTERN(void) jinit_arith_encoder JPP((j_compress_ptr cinfo)); +EXTERN(void) jinit_marker_writer JPP((j_compress_ptr cinfo)); +/* Decompression module initialization routines */ +EXTERN(void) jinit_master_decompress JPP((j_decompress_ptr cinfo)); +EXTERN(void) jinit_d_main_controller JPP((j_decompress_ptr cinfo, + boolean need_full_buffer)); +EXTERN(void) jinit_d_coef_controller JPP((j_decompress_ptr cinfo, + boolean need_full_buffer)); +EXTERN(void) jinit_d_post_controller JPP((j_decompress_ptr cinfo, + boolean need_full_buffer)); +EXTERN(void) jinit_input_controller JPP((j_decompress_ptr cinfo)); +EXTERN(void) jinit_marker_reader JPP((j_decompress_ptr cinfo)); +EXTERN(void) jinit_huff_decoder JPP((j_decompress_ptr cinfo)); +EXTERN(void) jinit_arith_decoder JPP((j_decompress_ptr cinfo)); +EXTERN(void) jinit_inverse_dct JPP((j_decompress_ptr cinfo)); +EXTERN(void) jinit_upsampler JPP((j_decompress_ptr cinfo)); +EXTERN(void) jinit_color_deconverter JPP((j_decompress_ptr cinfo)); +EXTERN(void) jinit_1pass_quantizer JPP((j_decompress_ptr cinfo)); +EXTERN(void) jinit_2pass_quantizer JPP((j_decompress_ptr cinfo)); +EXTERN(void) jinit_merged_upsampler JPP((j_decompress_ptr cinfo)); +/* Memory manager initialization */ +EXTERN(void) jinit_memory_mgr JPP((j_common_ptr cinfo)); + +/* Utility routines in jutils.c */ +EXTERN(long) jdiv_round_up JPP((long a, long b)); +EXTERN(long) jround_up JPP((long a, long b)); +EXTERN(void) jcopy_sample_rows JPP((JSAMPARRAY input_array, int source_row, + JSAMPARRAY output_array, int dest_row, + int num_rows, JDIMENSION num_cols)); +EXTERN(void) jcopy_block_row JPP((JBLOCKROW input_row, JBLOCKROW output_row, + JDIMENSION num_blocks)); +/* Constant tables in jutils.c */ +#if 0 /* This table is not actually needed in v6a */ +extern const int jpeg_zigzag_order[]; /* natural coef order to zigzag order */ +#endif +extern const int jpeg_natural_order[]; /* zigzag coef order to natural order */ +extern const int jpeg_natural_order7[]; /* zz to natural order for 7x7 block */ +extern const int jpeg_natural_order6[]; /* zz to natural order for 6x6 block */ +extern const int jpeg_natural_order5[]; /* zz to natural order for 5x5 block */ +extern const int jpeg_natural_order4[]; /* zz to natural order for 4x4 block */ +extern const int jpeg_natural_order3[]; /* zz to natural order for 3x3 block */ +extern const int jpeg_natural_order2[]; /* zz to natural order for 2x2 block */ + +/* Arithmetic coding probability estimation tables in jaricom.c */ +extern const INT32 jpeg_aritab[]; + +/* Suppress undefined-structure complaints if necessary. */ + +#ifdef INCOMPLETE_TYPES_BROKEN +#ifndef AM_MEMORY_MANAGER /* only jmemmgr.c defines these */ +struct jvirt_sarray_control { long dummy; }; +struct jvirt_barray_control { long dummy; }; +#endif +#endif /* INCOMPLETE_TYPES_BROKEN */ diff --git a/jpeg/jpeglib.h b/jpeg/jpeglib.h new file mode 100644 index 0000000..1327cff --- /dev/null +++ b/jpeg/jpeglib.h @@ -0,0 +1,1160 @@ +/* + * jpeglib.h + * + * Copyright (C) 1991-1998, Thomas G. Lane. + * Modified 2002-2011 by Guido Vollbeding. + * This file is part of the Independent JPEG Group's software. + * For conditions of distribution and use, see the accompanying README file. + * + * This file defines the application interface for the JPEG library. + * Most applications using the library need only include this file, + * and perhaps jerror.h if they want to know the exact error codes. + */ + +#ifndef JPEGLIB_H +#define JPEGLIB_H + +/* + * First we include the configuration files that record how this + * installation of the JPEG library is set up. jconfig.h can be + * generated automatically for many systems. jmorecfg.h contains + * manual configuration options that most people need not worry about. + */ + +#ifndef JCONFIG_INCLUDED /* in case jinclude.h already did */ +#include "jconfig.h" /* widely used configuration options */ +#endif +#include "jmorecfg.h" /* seldom changed options */ + + +#ifdef __cplusplus +#ifndef DONT_USE_EXTERN_C +extern "C" { +#endif +#endif + +/* Version IDs for the JPEG library. + * Might be useful for tests like "#if JPEG_LIB_VERSION >= 80". + */ + +#define JPEG_LIB_VERSION 80 /* Compatibility version 8.0 */ +#define JPEG_LIB_VERSION_MAJOR 8 +#define JPEG_LIB_VERSION_MINOR 4 + + +/* Various constants determining the sizes of things. + * All of these are specified by the JPEG standard, so don't change them + * if you want to be compatible. + */ + +#define DCTSIZE 8 /* The basic DCT block is 8x8 coefficients */ +#define DCTSIZE2 64 /* DCTSIZE squared; # of elements in a block */ +#define NUM_QUANT_TBLS 4 /* Quantization tables are numbered 0..3 */ +#define NUM_HUFF_TBLS 4 /* Huffman tables are numbered 0..3 */ +#define NUM_ARITH_TBLS 16 /* Arith-coding tables are numbered 0..15 */ +#define MAX_COMPS_IN_SCAN 4 /* JPEG limit on # of components in one scan */ +#define MAX_SAMP_FACTOR 4 /* JPEG limit on sampling factors */ +/* Unfortunately, some bozo at Adobe saw no reason to be bound by the standard; + * the PostScript DCT filter can emit files with many more than 10 blocks/MCU. + * If you happen to run across such a file, you can up D_MAX_BLOCKS_IN_MCU + * to handle it. We even let you do this from the jconfig.h file. However, + * we strongly discourage changing C_MAX_BLOCKS_IN_MCU; just because Adobe + * sometimes emits noncompliant files doesn't mean you should too. + */ +#define C_MAX_BLOCKS_IN_MCU 10 /* compressor's limit on blocks per MCU */ +#ifndef D_MAX_BLOCKS_IN_MCU +#define D_MAX_BLOCKS_IN_MCU 10 /* decompressor's limit on blocks per MCU */ +#endif + + +/* Data structures for images (arrays of samples and of DCT coefficients). + * On 80x86 machines, the image arrays are too big for near pointers, + * but the pointer arrays can fit in near memory. + */ + +typedef JSAMPLE FAR *JSAMPROW; /* ptr to one image row of pixel samples. */ +typedef JSAMPROW *JSAMPARRAY; /* ptr to some rows (a 2-D sample array) */ +typedef JSAMPARRAY *JSAMPIMAGE; /* a 3-D sample array: top index is color */ + +typedef JCOEF JBLOCK[DCTSIZE2]; /* one block of coefficients */ +typedef JBLOCK FAR *JBLOCKROW; /* pointer to one row of coefficient blocks */ +typedef JBLOCKROW *JBLOCKARRAY; /* a 2-D array of coefficient blocks */ +typedef JBLOCKARRAY *JBLOCKIMAGE; /* a 3-D array of coefficient blocks */ + +typedef JCOEF FAR *JCOEFPTR; /* useful in a couple of places */ + + +/* Types for JPEG compression parameters and working tables. */ + + +/* DCT coefficient quantization tables. */ + +typedef struct { + /* This array gives the coefficient quantizers in natural array order + * (not the zigzag order in which they are stored in a JPEG DQT marker). + * CAUTION: IJG versions prior to v6a kept this array in zigzag order. + */ + UINT16 quantval[DCTSIZE2]; /* quantization step for each coefficient */ + /* This field is used only during compression. It's initialized FALSE when + * the table is created, and set TRUE when it's been output to the file. + * You could suppress output of a table by setting this to TRUE. + * (See jpeg_suppress_tables for an example.) + */ + boolean sent_table; /* TRUE when table has been output */ +} JQUANT_TBL; + + +/* Huffman coding tables. */ + +typedef struct { + /* These two fields directly represent the contents of a JPEG DHT marker */ + UINT8 bits[17]; /* bits[k] = # of symbols with codes of */ + /* length k bits; bits[0] is unused */ + UINT8 huffval[256]; /* The symbols, in order of incr code length */ + /* This field is used only during compression. It's initialized FALSE when + * the table is created, and set TRUE when it's been output to the file. + * You could suppress output of a table by setting this to TRUE. + * (See jpeg_suppress_tables for an example.) + */ + boolean sent_table; /* TRUE when table has been output */ +} JHUFF_TBL; + + +/* Basic info about one component (color channel). */ + +typedef struct { + /* These values are fixed over the whole image. */ + /* For compression, they must be supplied by parameter setup; */ + /* for decompression, they are read from the SOF marker. */ + int component_id; /* identifier for this component (0..255) */ + int component_index; /* its index in SOF or cinfo->comp_info[] */ + int h_samp_factor; /* horizontal sampling factor (1..4) */ + int v_samp_factor; /* vertical sampling factor (1..4) */ + int quant_tbl_no; /* quantization table selector (0..3) */ + /* These values may vary between scans. */ + /* For compression, they must be supplied by parameter setup; */ + /* for decompression, they are read from the SOS marker. */ + /* The decompressor output side may not use these variables. */ + int dc_tbl_no; /* DC entropy table selector (0..3) */ + int ac_tbl_no; /* AC entropy table selector (0..3) */ + + /* Remaining fields should be treated as private by applications. */ + + /* These values are computed during compression or decompression startup: */ + /* Component's size in DCT blocks. + * Any dummy blocks added to complete an MCU are not counted; therefore + * these values do not depend on whether a scan is interleaved or not. + */ + JDIMENSION width_in_blocks; + JDIMENSION height_in_blocks; + /* Size of a DCT block in samples, + * reflecting any scaling we choose to apply during the DCT step. + * Values from 1 to 16 are supported. + * Note that different components may receive different DCT scalings. + */ + int DCT_h_scaled_size; + int DCT_v_scaled_size; + /* The downsampled dimensions are the component's actual, unpadded number + * of samples at the main buffer (preprocessing/compression interface); + * DCT scaling is included, so + * downsampled_width = ceil(image_width * Hi/Hmax * DCT_h_scaled_size/DCTSIZE) + * and similarly for height. + */ + JDIMENSION downsampled_width; /* actual width in samples */ + JDIMENSION downsampled_height; /* actual height in samples */ + /* This flag is used only for decompression. In cases where some of the + * components will be ignored (eg grayscale output from YCbCr image), + * we can skip most computations for the unused components. + */ + boolean component_needed; /* do we need the value of this component? */ + + /* These values are computed before starting a scan of the component. */ + /* The decompressor output side may not use these variables. */ + int MCU_width; /* number of blocks per MCU, horizontally */ + int MCU_height; /* number of blocks per MCU, vertically */ + int MCU_blocks; /* MCU_width * MCU_height */ + int MCU_sample_width; /* MCU width in samples: MCU_width * DCT_h_scaled_size */ + int last_col_width; /* # of non-dummy blocks across in last MCU */ + int last_row_height; /* # of non-dummy blocks down in last MCU */ + + /* Saved quantization table for component; NULL if none yet saved. + * See jdinput.c comments about the need for this information. + * This field is currently used only for decompression. + */ + JQUANT_TBL * quant_table; + + /* Private per-component storage for DCT or IDCT subsystem. */ + void * dct_table; +} jpeg_component_info; + + +/* The script for encoding a multiple-scan file is an array of these: */ + +typedef struct { + int comps_in_scan; /* number of components encoded in this scan */ + int component_index[MAX_COMPS_IN_SCAN]; /* their SOF/comp_info[] indexes */ + int Ss, Se; /* progressive JPEG spectral selection parms */ + int Ah, Al; /* progressive JPEG successive approx. parms */ +} jpeg_scan_info; + +/* The decompressor can save APPn and COM markers in a list of these: */ + +typedef struct jpeg_marker_struct FAR * jpeg_saved_marker_ptr; + +struct jpeg_marker_struct { + jpeg_saved_marker_ptr next; /* next in list, or NULL */ + UINT8 marker; /* marker code: JPEG_COM, or JPEG_APP0+n */ + unsigned int original_length; /* # bytes of data in the file */ + unsigned int data_length; /* # bytes of data saved at data[] */ + JOCTET FAR * data; /* the data contained in the marker */ + /* the marker length word is not counted in data_length or original_length */ +}; + +/* Known color spaces. */ + +typedef enum { + JCS_UNKNOWN, /* error/unspecified */ + JCS_GRAYSCALE, /* monochrome */ + JCS_RGB, /* red/green/blue */ + JCS_YCbCr, /* Y/Cb/Cr (also known as YUV) */ + JCS_CMYK, /* C/M/Y/K */ + JCS_YCCK /* Y/Cb/Cr/K */ +} J_COLOR_SPACE; + +/* DCT/IDCT algorithm options. */ + +typedef enum { + JDCT_ISLOW, /* slow but accurate integer algorithm */ + JDCT_IFAST, /* faster, less accurate integer method */ + JDCT_FLOAT /* floating-point: accurate, fast on fast HW */ +} J_DCT_METHOD; + +#ifndef JDCT_DEFAULT /* may be overridden in jconfig.h */ +#define JDCT_DEFAULT JDCT_ISLOW +#endif +#ifndef JDCT_FASTEST /* may be overridden in jconfig.h */ +#define JDCT_FASTEST JDCT_IFAST +#endif + +/* Dithering options for decompression. */ + +typedef enum { + JDITHER_NONE, /* no dithering */ + JDITHER_ORDERED, /* simple ordered dither */ + JDITHER_FS /* Floyd-Steinberg error diffusion dither */ +} J_DITHER_MODE; + + +/* Common fields between JPEG compression and decompression master structs. */ + +#define jpeg_common_fields \ + struct jpeg_error_mgr * err; /* Error handler module */\ + struct jpeg_memory_mgr * mem; /* Memory manager module */\ + struct jpeg_progress_mgr * progress; /* Progress monitor, or NULL if none */\ + void * client_data; /* Available for use by application */\ + boolean is_decompressor; /* So common code can tell which is which */\ + int global_state /* For checking call sequence validity */ + +/* Routines that are to be used by both halves of the library are declared + * to receive a pointer to this structure. There are no actual instances of + * jpeg_common_struct, only of jpeg_compress_struct and jpeg_decompress_struct. + */ +struct jpeg_common_struct { + jpeg_common_fields; /* Fields common to both master struct types */ + /* Additional fields follow in an actual jpeg_compress_struct or + * jpeg_decompress_struct. All three structs must agree on these + * initial fields! (This would be a lot cleaner in C++.) + */ +}; + +typedef struct jpeg_common_struct * j_common_ptr; +typedef struct jpeg_compress_struct * j_compress_ptr; +typedef struct jpeg_decompress_struct * j_decompress_ptr; + + +/* Master record for a compression instance */ + +struct jpeg_compress_struct { + jpeg_common_fields; /* Fields shared with jpeg_decompress_struct */ + + /* Destination for compressed data */ + struct jpeg_destination_mgr * dest; + + /* Description of source image --- these fields must be filled in by + * outer application before starting compression. in_color_space must + * be correct before you can even call jpeg_set_defaults(). + */ + + JDIMENSION image_width; /* input image width */ + JDIMENSION image_height; /* input image height */ + int input_components; /* # of color components in input image */ + J_COLOR_SPACE in_color_space; /* colorspace of input image */ + + double input_gamma; /* image gamma of input image */ + + /* Compression parameters --- these fields must be set before calling + * jpeg_start_compress(). We recommend calling jpeg_set_defaults() to + * initialize everything to reasonable defaults, then changing anything + * the application specifically wants to change. That way you won't get + * burnt when new parameters are added. Also note that there are several + * helper routines to simplify changing parameters. + */ + + unsigned int scale_num, scale_denom; /* fraction by which to scale image */ + + JDIMENSION jpeg_width; /* scaled JPEG image width */ + JDIMENSION jpeg_height; /* scaled JPEG image height */ + /* Dimensions of actual JPEG image that will be written to file, + * derived from input dimensions by scaling factors above. + * These fields are computed by jpeg_start_compress(). + * You can also use jpeg_calc_jpeg_dimensions() to determine these values + * in advance of calling jpeg_start_compress(). + */ + + int data_precision; /* bits of precision in image data */ + + int num_components; /* # of color components in JPEG image */ + J_COLOR_SPACE jpeg_color_space; /* colorspace of JPEG image */ + + jpeg_component_info * comp_info; + /* comp_info[i] describes component that appears i'th in SOF */ + + JQUANT_TBL * quant_tbl_ptrs[NUM_QUANT_TBLS]; + int q_scale_factor[NUM_QUANT_TBLS]; + /* ptrs to coefficient quantization tables, or NULL if not defined, + * and corresponding scale factors (percentage, initialized 100). + */ + + JHUFF_TBL * dc_huff_tbl_ptrs[NUM_HUFF_TBLS]; + JHUFF_TBL * ac_huff_tbl_ptrs[NUM_HUFF_TBLS]; + /* ptrs to Huffman coding tables, or NULL if not defined */ + + UINT8 arith_dc_L[NUM_ARITH_TBLS]; /* L values for DC arith-coding tables */ + UINT8 arith_dc_U[NUM_ARITH_TBLS]; /* U values for DC arith-coding tables */ + UINT8 arith_ac_K[NUM_ARITH_TBLS]; /* Kx values for AC arith-coding tables */ + + int num_scans; /* # of entries in scan_info array */ + const jpeg_scan_info * scan_info; /* script for multi-scan file, or NULL */ + /* The default value of scan_info is NULL, which causes a single-scan + * sequential JPEG file to be emitted. To create a multi-scan file, + * set num_scans and scan_info to point to an array of scan definitions. + */ + + boolean raw_data_in; /* TRUE=caller supplies downsampled data */ + boolean arith_code; /* TRUE=arithmetic coding, FALSE=Huffman */ + boolean optimize_coding; /* TRUE=optimize entropy encoding parms */ + boolean CCIR601_sampling; /* TRUE=first samples are cosited */ + boolean do_fancy_downsampling; /* TRUE=apply fancy downsampling */ + int smoothing_factor; /* 1..100, or 0 for no input smoothing */ + J_DCT_METHOD dct_method; /* DCT algorithm selector */ + + /* The restart interval can be specified in absolute MCUs by setting + * restart_interval, or in MCU rows by setting restart_in_rows + * (in which case the correct restart_interval will be figured + * for each scan). + */ + unsigned int restart_interval; /* MCUs per restart, or 0 for no restart */ + int restart_in_rows; /* if > 0, MCU rows per restart interval */ + + /* Parameters controlling emission of special markers. */ + + boolean write_JFIF_header; /* should a JFIF marker be written? */ + UINT8 JFIF_major_version; /* What to write for the JFIF version number */ + UINT8 JFIF_minor_version; + /* These three values are not used by the JPEG code, merely copied */ + /* into the JFIF APP0 marker. density_unit can be 0 for unknown, */ + /* 1 for dots/inch, or 2 for dots/cm. Note that the pixel aspect */ + /* ratio is defined by X_density/Y_density even when density_unit=0. */ + UINT8 density_unit; /* JFIF code for pixel size units */ + UINT16 X_density; /* Horizontal pixel density */ + UINT16 Y_density; /* Vertical pixel density */ + boolean write_Adobe_marker; /* should an Adobe marker be written? */ + + /* State variable: index of next scanline to be written to + * jpeg_write_scanlines(). Application may use this to control its + * processing loop, e.g., "while (next_scanline < image_height)". + */ + + JDIMENSION next_scanline; /* 0 .. image_height-1 */ + + /* Remaining fields are known throughout compressor, but generally + * should not be touched by a surrounding application. + */ + + /* + * These fields are computed during compression startup + */ + boolean progressive_mode; /* TRUE if scan script uses progressive mode */ + int max_h_samp_factor; /* largest h_samp_factor */ + int max_v_samp_factor; /* largest v_samp_factor */ + + int min_DCT_h_scaled_size; /* smallest DCT_h_scaled_size of any component */ + int min_DCT_v_scaled_size; /* smallest DCT_v_scaled_size of any component */ + + JDIMENSION total_iMCU_rows; /* # of iMCU rows to be input to coef ctlr */ + /* The coefficient controller receives data in units of MCU rows as defined + * for fully interleaved scans (whether the JPEG file is interleaved or not). + * There are v_samp_factor * DCTSIZE sample rows of each component in an + * "iMCU" (interleaved MCU) row. + */ + + /* + * These fields are valid during any one scan. + * They describe the components and MCUs actually appearing in the scan. + */ + int comps_in_scan; /* # of JPEG components in this scan */ + jpeg_component_info * cur_comp_info[MAX_COMPS_IN_SCAN]; + /* *cur_comp_info[i] describes component that appears i'th in SOS */ + + JDIMENSION MCUs_per_row; /* # of MCUs across the image */ + JDIMENSION MCU_rows_in_scan; /* # of MCU rows in the image */ + + int blocks_in_MCU; /* # of DCT blocks per MCU */ + int MCU_membership[C_MAX_BLOCKS_IN_MCU]; + /* MCU_membership[i] is index in cur_comp_info of component owning */ + /* i'th block in an MCU */ + + int Ss, Se, Ah, Al; /* progressive JPEG parameters for scan */ + + int block_size; /* the basic DCT block size: 1..16 */ + const int * natural_order; /* natural-order position array */ + int lim_Se; /* min( Se, DCTSIZE2-1 ) */ + + /* + * Links to compression subobjects (methods and private variables of modules) + */ + struct jpeg_comp_master * master; + struct jpeg_c_main_controller * main; + struct jpeg_c_prep_controller * prep; + struct jpeg_c_coef_controller * coef; + struct jpeg_marker_writer * marker; + struct jpeg_color_converter * cconvert; + struct jpeg_downsampler * downsample; + struct jpeg_forward_dct * fdct; + struct jpeg_entropy_encoder * entropy; + jpeg_scan_info * script_space; /* workspace for jpeg_simple_progression */ + int script_space_size; +}; + + +/* Master record for a decompression instance */ + +struct jpeg_decompress_struct { + jpeg_common_fields; /* Fields shared with jpeg_compress_struct */ + + /* Source of compressed data */ + struct jpeg_source_mgr * src; + + /* Basic description of image --- filled in by jpeg_read_header(). */ + /* Application may inspect these values to decide how to process image. */ + + JDIMENSION image_width; /* nominal image width (from SOF marker) */ + JDIMENSION image_height; /* nominal image height */ + int num_components; /* # of color components in JPEG image */ + J_COLOR_SPACE jpeg_color_space; /* colorspace of JPEG image */ + + /* Decompression processing parameters --- these fields must be set before + * calling jpeg_start_decompress(). Note that jpeg_read_header() initializes + * them to default values. + */ + + J_COLOR_SPACE out_color_space; /* colorspace for output */ + + unsigned int scale_num, scale_denom; /* fraction by which to scale image */ + + double output_gamma; /* image gamma wanted in output */ + + boolean buffered_image; /* TRUE=multiple output passes */ + boolean raw_data_out; /* TRUE=downsampled data wanted */ + + J_DCT_METHOD dct_method; /* IDCT algorithm selector */ + boolean do_fancy_upsampling; /* TRUE=apply fancy upsampling */ + boolean do_block_smoothing; /* TRUE=apply interblock smoothing */ + + boolean quantize_colors; /* TRUE=colormapped output wanted */ + /* the following are ignored if not quantize_colors: */ + J_DITHER_MODE dither_mode; /* type of color dithering to use */ + boolean two_pass_quantize; /* TRUE=use two-pass color quantization */ + int desired_number_of_colors; /* max # colors to use in created colormap */ + /* these are significant only in buffered-image mode: */ + boolean enable_1pass_quant; /* enable future use of 1-pass quantizer */ + boolean enable_external_quant;/* enable future use of external colormap */ + boolean enable_2pass_quant; /* enable future use of 2-pass quantizer */ + + /* Description of actual output image that will be returned to application. + * These fields are computed by jpeg_start_decompress(). + * You can also use jpeg_calc_output_dimensions() to determine these values + * in advance of calling jpeg_start_decompress(). + */ + + JDIMENSION output_width; /* scaled image width */ + JDIMENSION output_height; /* scaled image height */ + int out_color_components; /* # of color components in out_color_space */ + int output_components; /* # of color components returned */ + /* output_components is 1 (a colormap index) when quantizing colors; + * otherwise it equals out_color_components. + */ + int rec_outbuf_height; /* min recommended height of scanline buffer */ + /* If the buffer passed to jpeg_read_scanlines() is less than this many rows + * high, space and time will be wasted due to unnecessary data copying. + * Usually rec_outbuf_height will be 1 or 2, at most 4. + */ + + /* When quantizing colors, the output colormap is described by these fields. + * The application can supply a colormap by setting colormap non-NULL before + * calling jpeg_start_decompress; otherwise a colormap is created during + * jpeg_start_decompress or jpeg_start_output. + * The map has out_color_components rows and actual_number_of_colors columns. + */ + int actual_number_of_colors; /* number of entries in use */ + JSAMPARRAY colormap; /* The color map as a 2-D pixel array */ + + /* State variables: these variables indicate the progress of decompression. + * The application may examine these but must not modify them. + */ + + /* Row index of next scanline to be read from jpeg_read_scanlines(). + * Application may use this to control its processing loop, e.g., + * "while (output_scanline < output_height)". + */ + JDIMENSION output_scanline; /* 0 .. output_height-1 */ + + /* Current input scan number and number of iMCU rows completed in scan. + * These indicate the progress of the decompressor input side. + */ + int input_scan_number; /* Number of SOS markers seen so far */ + JDIMENSION input_iMCU_row; /* Number of iMCU rows completed */ + + /* The "output scan number" is the notional scan being displayed by the + * output side. The decompressor will not allow output scan/row number + * to get ahead of input scan/row, but it can fall arbitrarily far behind. + */ + int output_scan_number; /* Nominal scan number being displayed */ + JDIMENSION output_iMCU_row; /* Number of iMCU rows read */ + + /* Current progression status. coef_bits[c][i] indicates the precision + * with which component c's DCT coefficient i (in zigzag order) is known. + * It is -1 when no data has yet been received, otherwise it is the point + * transform (shift) value for the most recent scan of the coefficient + * (thus, 0 at completion of the progression). + * This pointer is NULL when reading a non-progressive file. + */ + int (*coef_bits)[DCTSIZE2]; /* -1 or current Al value for each coef */ + + /* Internal JPEG parameters --- the application usually need not look at + * these fields. Note that the decompressor output side may not use + * any parameters that can change between scans. + */ + + /* Quantization and Huffman tables are carried forward across input + * datastreams when processing abbreviated JPEG datastreams. + */ + + JQUANT_TBL * quant_tbl_ptrs[NUM_QUANT_TBLS]; + /* ptrs to coefficient quantization tables, or NULL if not defined */ + + JHUFF_TBL * dc_huff_tbl_ptrs[NUM_HUFF_TBLS]; + JHUFF_TBL * ac_huff_tbl_ptrs[NUM_HUFF_TBLS]; + /* ptrs to Huffman coding tables, or NULL if not defined */ + + /* These parameters are never carried across datastreams, since they + * are given in SOF/SOS markers or defined to be reset by SOI. + */ + + int data_precision; /* bits of precision in image data */ + + jpeg_component_info * comp_info; + /* comp_info[i] describes component that appears i'th in SOF */ + + boolean is_baseline; /* TRUE if Baseline SOF0 encountered */ + boolean progressive_mode; /* TRUE if SOFn specifies progressive mode */ + boolean arith_code; /* TRUE=arithmetic coding, FALSE=Huffman */ + + UINT8 arith_dc_L[NUM_ARITH_TBLS]; /* L values for DC arith-coding tables */ + UINT8 arith_dc_U[NUM_ARITH_TBLS]; /* U values for DC arith-coding tables */ + UINT8 arith_ac_K[NUM_ARITH_TBLS]; /* Kx values for AC arith-coding tables */ + + unsigned int restart_interval; /* MCUs per restart interval, or 0 for no restart */ + + /* These fields record data obtained from optional markers recognized by + * the JPEG library. + */ + boolean saw_JFIF_marker; /* TRUE iff a JFIF APP0 marker was found */ + /* Data copied from JFIF marker; only valid if saw_JFIF_marker is TRUE: */ + UINT8 JFIF_major_version; /* JFIF version number */ + UINT8 JFIF_minor_version; + UINT8 density_unit; /* JFIF code for pixel size units */ + UINT16 X_density; /* Horizontal pixel density */ + UINT16 Y_density; /* Vertical pixel density */ + boolean saw_Adobe_marker; /* TRUE iff an Adobe APP14 marker was found */ + UINT8 Adobe_transform; /* Color transform code from Adobe marker */ + + boolean CCIR601_sampling; /* TRUE=first samples are cosited */ + + /* Aside from the specific data retained from APPn markers known to the + * library, the uninterpreted contents of any or all APPn and COM markers + * can be saved in a list for examination by the application. + */ + jpeg_saved_marker_ptr marker_list; /* Head of list of saved markers */ + + /* Remaining fields are known throughout decompressor, but generally + * should not be touched by a surrounding application. + */ + + /* + * These fields are computed during decompression startup + */ + int max_h_samp_factor; /* largest h_samp_factor */ + int max_v_samp_factor; /* largest v_samp_factor */ + + int min_DCT_h_scaled_size; /* smallest DCT_h_scaled_size of any component */ + int min_DCT_v_scaled_size; /* smallest DCT_v_scaled_size of any component */ + + JDIMENSION total_iMCU_rows; /* # of iMCU rows in image */ + /* The coefficient controller's input and output progress is measured in + * units of "iMCU" (interleaved MCU) rows. These are the same as MCU rows + * in fully interleaved JPEG scans, but are used whether the scan is + * interleaved or not. We define an iMCU row as v_samp_factor DCT block + * rows of each component. Therefore, the IDCT output contains + * v_samp_factor*DCT_v_scaled_size sample rows of a component per iMCU row. + */ + + JSAMPLE * sample_range_limit; /* table for fast range-limiting */ + + /* + * These fields are valid during any one scan. + * They describe the components and MCUs actually appearing in the scan. + * Note that the decompressor output side must not use these fields. + */ + int comps_in_scan; /* # of JPEG components in this scan */ + jpeg_component_info * cur_comp_info[MAX_COMPS_IN_SCAN]; + /* *cur_comp_info[i] describes component that appears i'th in SOS */ + + JDIMENSION MCUs_per_row; /* # of MCUs across the image */ + JDIMENSION MCU_rows_in_scan; /* # of MCU rows in the image */ + + int blocks_in_MCU; /* # of DCT blocks per MCU */ + int MCU_membership[D_MAX_BLOCKS_IN_MCU]; + /* MCU_membership[i] is index in cur_comp_info of component owning */ + /* i'th block in an MCU */ + + int Ss, Se, Ah, Al; /* progressive JPEG parameters for scan */ + + /* These fields are derived from Se of first SOS marker. + */ + int block_size; /* the basic DCT block size: 1..16 */ + const int * natural_order; /* natural-order position array for entropy decode */ + int lim_Se; /* min( Se, DCTSIZE2-1 ) for entropy decode */ + + /* This field is shared between entropy decoder and marker parser. + * It is either zero or the code of a JPEG marker that has been + * read from the data source, but has not yet been processed. + */ + int unread_marker; + + /* + * Links to decompression subobjects (methods, private variables of modules) + */ + struct jpeg_decomp_master * master; + struct jpeg_d_main_controller * main; + struct jpeg_d_coef_controller * coef; + struct jpeg_d_post_controller * post; + struct jpeg_input_controller * inputctl; + struct jpeg_marker_reader * marker; + struct jpeg_entropy_decoder * entropy; + struct jpeg_inverse_dct * idct; + struct jpeg_upsampler * upsample; + struct jpeg_color_deconverter * cconvert; + struct jpeg_color_quantizer * cquantize; +}; + + +/* "Object" declarations for JPEG modules that may be supplied or called + * directly by the surrounding application. + * As with all objects in the JPEG library, these structs only define the + * publicly visible methods and state variables of a module. Additional + * private fields may exist after the public ones. + */ + + +/* Error handler object */ + +struct jpeg_error_mgr { + /* Error exit handler: does not return to caller */ + JMETHOD(void, error_exit, (j_common_ptr cinfo)); + /* Conditionally emit a trace or warning message */ + JMETHOD(void, emit_message, (j_common_ptr cinfo, int msg_level)); + /* Routine that actually outputs a trace or error message */ + JMETHOD(void, output_message, (j_common_ptr cinfo)); + /* Format a message string for the most recent JPEG error or message */ + JMETHOD(void, format_message, (j_common_ptr cinfo, char * buffer)); +#define JMSG_LENGTH_MAX 200 /* recommended size of format_message buffer */ + /* Reset error state variables at start of a new image */ + JMETHOD(void, reset_error_mgr, (j_common_ptr cinfo)); + + /* The message ID code and any parameters are saved here. + * A message can have one string parameter or up to 8 int parameters. + */ + int msg_code; +#define JMSG_STR_PARM_MAX 80 + union { + int i[8]; + char s[JMSG_STR_PARM_MAX]; + } msg_parm; + + /* Standard state variables for error facility */ + + int trace_level; /* max msg_level that will be displayed */ + + /* For recoverable corrupt-data errors, we emit a warning message, + * but keep going unless emit_message chooses to abort. emit_message + * should count warnings in num_warnings. The surrounding application + * can check for bad data by seeing if num_warnings is nonzero at the + * end of processing. + */ + long num_warnings; /* number of corrupt-data warnings */ + + /* These fields point to the table(s) of error message strings. + * An application can change the table pointer to switch to a different + * message list (typically, to change the language in which errors are + * reported). Some applications may wish to add additional error codes + * that will be handled by the JPEG library error mechanism; the second + * table pointer is used for this purpose. + * + * First table includes all errors generated by JPEG library itself. + * Error code 0 is reserved for a "no such error string" message. + */ + const char * const * jpeg_message_table; /* Library errors */ + int last_jpeg_message; /* Table contains strings 0..last_jpeg_message */ + /* Second table can be added by application (see cjpeg/djpeg for example). + * It contains strings numbered first_addon_message..last_addon_message. + */ + const char * const * addon_message_table; /* Non-library errors */ + int first_addon_message; /* code for first string in addon table */ + int last_addon_message; /* code for last string in addon table */ +}; + + +/* Progress monitor object */ + +struct jpeg_progress_mgr { + JMETHOD(void, progress_monitor, (j_common_ptr cinfo)); + + long pass_counter; /* work units completed in this pass */ + long pass_limit; /* total number of work units in this pass */ + int completed_passes; /* passes completed so far */ + int total_passes; /* total number of passes expected */ +}; + + +/* Data destination object for compression */ + +struct jpeg_destination_mgr { + JOCTET * next_output_byte; /* => next byte to write in buffer */ + size_t free_in_buffer; /* # of byte spaces remaining in buffer */ + + JMETHOD(void, init_destination, (j_compress_ptr cinfo)); + JMETHOD(boolean, empty_output_buffer, (j_compress_ptr cinfo)); + JMETHOD(void, term_destination, (j_compress_ptr cinfo)); +}; + + +/* Data source object for decompression */ + +struct jpeg_source_mgr { + const JOCTET * next_input_byte; /* => next byte to read from buffer */ + size_t bytes_in_buffer; /* # of bytes remaining in buffer */ + + JMETHOD(void, init_source, (j_decompress_ptr cinfo)); + JMETHOD(boolean, fill_input_buffer, (j_decompress_ptr cinfo)); + JMETHOD(void, skip_input_data, (j_decompress_ptr cinfo, long num_bytes)); + JMETHOD(boolean, resync_to_restart, (j_decompress_ptr cinfo, int desired)); + JMETHOD(void, term_source, (j_decompress_ptr cinfo)); +}; + + +/* Memory manager object. + * Allocates "small" objects (a few K total), "large" objects (tens of K), + * and "really big" objects (virtual arrays with backing store if needed). + * The memory manager does not allow individual objects to be freed; rather, + * each created object is assigned to a pool, and whole pools can be freed + * at once. This is faster and more convenient than remembering exactly what + * to free, especially where malloc()/free() are not too speedy. + * NB: alloc routines never return NULL. They exit to error_exit if not + * successful. + */ + +#define JPOOL_PERMANENT 0 /* lasts until master record is destroyed */ +#define JPOOL_IMAGE 1 /* lasts until done with image/datastream */ +#define JPOOL_NUMPOOLS 2 + +typedef struct jvirt_sarray_control * jvirt_sarray_ptr; +typedef struct jvirt_barray_control * jvirt_barray_ptr; + + +struct jpeg_memory_mgr { + /* Method pointers */ + JMETHOD(void *, alloc_small, (j_common_ptr cinfo, int pool_id, + size_t sizeofobject)); + JMETHOD(void FAR *, alloc_large, (j_common_ptr cinfo, int pool_id, + size_t sizeofobject)); + JMETHOD(JSAMPARRAY, alloc_sarray, (j_common_ptr cinfo, int pool_id, + JDIMENSION samplesperrow, + JDIMENSION numrows)); + JMETHOD(JBLOCKARRAY, alloc_barray, (j_common_ptr cinfo, int pool_id, + JDIMENSION blocksperrow, + JDIMENSION numrows)); + JMETHOD(jvirt_sarray_ptr, request_virt_sarray, (j_common_ptr cinfo, + int pool_id, + boolean pre_zero, + JDIMENSION samplesperrow, + JDIMENSION numrows, + JDIMENSION maxaccess)); + JMETHOD(jvirt_barray_ptr, request_virt_barray, (j_common_ptr cinfo, + int pool_id, + boolean pre_zero, + JDIMENSION blocksperrow, + JDIMENSION numrows, + JDIMENSION maxaccess)); + JMETHOD(void, realize_virt_arrays, (j_common_ptr cinfo)); + JMETHOD(JSAMPARRAY, access_virt_sarray, (j_common_ptr cinfo, + jvirt_sarray_ptr ptr, + JDIMENSION start_row, + JDIMENSION num_rows, + boolean writable)); + JMETHOD(JBLOCKARRAY, access_virt_barray, (j_common_ptr cinfo, + jvirt_barray_ptr ptr, + JDIMENSION start_row, + JDIMENSION num_rows, + boolean writable)); + JMETHOD(void, free_pool, (j_common_ptr cinfo, int pool_id)); + JMETHOD(void, self_destruct, (j_common_ptr cinfo)); + + /* Limit on memory allocation for this JPEG object. (Note that this is + * merely advisory, not a guaranteed maximum; it only affects the space + * used for virtual-array buffers.) May be changed by outer application + * after creating the JPEG object. + */ + long max_memory_to_use; + + /* Maximum allocation request accepted by alloc_large. */ + long max_alloc_chunk; +}; + + +/* Routine signature for application-supplied marker processing methods. + * Need not pass marker code since it is stored in cinfo->unread_marker. + */ +typedef JMETHOD(boolean, jpeg_marker_parser_method, (j_decompress_ptr cinfo)); + + +/* Declarations for routines called by application. + * The JPP macro hides prototype parameters from compilers that can't cope. + * Note JPP requires double parentheses. + */ + +#ifdef HAVE_PROTOTYPES +#define JPP(arglist) arglist +#else +#define JPP(arglist) () +#endif + + +/* Short forms of external names for systems with brain-damaged linkers. + * We shorten external names to be unique in the first six letters, which + * is good enough for all known systems. + * (If your compiler itself needs names to be unique in less than 15 + * characters, you are out of luck. Get a better compiler.) + */ + +#ifdef NEED_SHORT_EXTERNAL_NAMES +#define jpeg_std_error jStdError +#define jpeg_CreateCompress jCreaCompress +#define jpeg_CreateDecompress jCreaDecompress +#define jpeg_destroy_compress jDestCompress +#define jpeg_destroy_decompress jDestDecompress +#define jpeg_stdio_dest jStdDest +#define jpeg_stdio_src jStdSrc +#define jpeg_mem_dest jMemDest +#define jpeg_mem_src jMemSrc +#define jpeg_set_defaults jSetDefaults +#define jpeg_set_colorspace jSetColorspace +#define jpeg_default_colorspace jDefColorspace +#define jpeg_set_quality jSetQuality +#define jpeg_set_linear_quality jSetLQuality +#define jpeg_default_qtables jDefQTables +#define jpeg_add_quant_table jAddQuantTable +#define jpeg_quality_scaling jQualityScaling +#define jpeg_simple_progression jSimProgress +#define jpeg_suppress_tables jSuppressTables +#define jpeg_alloc_quant_table jAlcQTable +#define jpeg_alloc_huff_table jAlcHTable +#define jpeg_start_compress jStrtCompress +#define jpeg_write_scanlines jWrtScanlines +#define jpeg_finish_compress jFinCompress +#define jpeg_calc_jpeg_dimensions jCjpegDimensions +#define jpeg_write_raw_data jWrtRawData +#define jpeg_write_marker jWrtMarker +#define jpeg_write_m_header jWrtMHeader +#define jpeg_write_m_byte jWrtMByte +#define jpeg_write_tables jWrtTables +#define jpeg_read_header jReadHeader +#define jpeg_start_decompress jStrtDecompress +#define jpeg_read_scanlines jReadScanlines +#define jpeg_finish_decompress jFinDecompress +#define jpeg_read_raw_data jReadRawData +#define jpeg_has_multiple_scans jHasMultScn +#define jpeg_start_output jStrtOutput +#define jpeg_finish_output jFinOutput +#define jpeg_input_complete jInComplete +#define jpeg_new_colormap jNewCMap +#define jpeg_consume_input jConsumeInput +#define jpeg_core_output_dimensions jCoreDimensions +#define jpeg_calc_output_dimensions jCalcDimensions +#define jpeg_save_markers jSaveMarkers +#define jpeg_set_marker_processor jSetMarker +#define jpeg_read_coefficients jReadCoefs +#define jpeg_write_coefficients jWrtCoefs +#define jpeg_copy_critical_parameters jCopyCrit +#define jpeg_abort_compress jAbrtCompress +#define jpeg_abort_decompress jAbrtDecompress +#define jpeg_abort jAbort +#define jpeg_destroy jDestroy +#define jpeg_resync_to_restart jResyncRestart +#endif /* NEED_SHORT_EXTERNAL_NAMES */ + + +/* Default error-management setup */ +EXTERN(struct jpeg_error_mgr *) jpeg_std_error + JPP((struct jpeg_error_mgr * err)); + +/* Initialization of JPEG compression objects. + * jpeg_create_compress() and jpeg_create_decompress() are the exported + * names that applications should call. These expand to calls on + * jpeg_CreateCompress and jpeg_CreateDecompress with additional information + * passed for version mismatch checking. + * NB: you must set up the error-manager BEFORE calling jpeg_create_xxx. + */ +#define jpeg_create_compress(cinfo) \ + jpeg_CreateCompress((cinfo), JPEG_LIB_VERSION, \ + (size_t) sizeof(struct jpeg_compress_struct)) +#define jpeg_create_decompress(cinfo) \ + jpeg_CreateDecompress((cinfo), JPEG_LIB_VERSION, \ + (size_t) sizeof(struct jpeg_decompress_struct)) +EXTERN(void) jpeg_CreateCompress JPP((j_compress_ptr cinfo, + int version, size_t structsize)); +EXTERN(void) jpeg_CreateDecompress JPP((j_decompress_ptr cinfo, + int version, size_t structsize)); +/* Destruction of JPEG compression objects */ +EXTERN(void) jpeg_destroy_compress JPP((j_compress_ptr cinfo)); +EXTERN(void) jpeg_destroy_decompress JPP((j_decompress_ptr cinfo)); + +/* Standard data source and destination managers: stdio streams. */ +/* Caller is responsible for opening the file before and closing after. */ +EXTERN(void) jpeg_stdio_dest JPP((j_compress_ptr cinfo, FILE * outfile)); +EXTERN(void) jpeg_stdio_src JPP((j_decompress_ptr cinfo, FILE * infile)); + +/* Data source and destination managers: memory buffers. */ +EXTERN(void) jpeg_mem_dest JPP((j_compress_ptr cinfo, + unsigned char ** outbuffer, + unsigned long * outsize)); +EXTERN(void) jpeg_mem_src JPP((j_decompress_ptr cinfo, + unsigned char * inbuffer, + unsigned long insize)); + +/* Default parameter setup for compression */ +EXTERN(void) jpeg_set_defaults JPP((j_compress_ptr cinfo)); +/* Compression parameter setup aids */ +EXTERN(void) jpeg_set_colorspace JPP((j_compress_ptr cinfo, + J_COLOR_SPACE colorspace)); +EXTERN(void) jpeg_default_colorspace JPP((j_compress_ptr cinfo)); +EXTERN(void) jpeg_set_quality JPP((j_compress_ptr cinfo, int quality, + boolean force_baseline)); +EXTERN(void) jpeg_set_linear_quality JPP((j_compress_ptr cinfo, + int scale_factor, + boolean force_baseline)); +EXTERN(void) jpeg_default_qtables JPP((j_compress_ptr cinfo, + boolean force_baseline)); +EXTERN(void) jpeg_add_quant_table JPP((j_compress_ptr cinfo, int which_tbl, + const unsigned int *basic_table, + int scale_factor, + boolean force_baseline)); +EXTERN(int) jpeg_quality_scaling JPP((int quality)); +EXTERN(void) jpeg_simple_progression JPP((j_compress_ptr cinfo)); +EXTERN(void) jpeg_suppress_tables JPP((j_compress_ptr cinfo, + boolean suppress)); +EXTERN(JQUANT_TBL *) jpeg_alloc_quant_table JPP((j_common_ptr cinfo)); +EXTERN(JHUFF_TBL *) jpeg_alloc_huff_table JPP((j_common_ptr cinfo)); + +/* Main entry points for compression */ +EXTERN(void) jpeg_start_compress JPP((j_compress_ptr cinfo, + boolean write_all_tables)); +EXTERN(JDIMENSION) jpeg_write_scanlines JPP((j_compress_ptr cinfo, + JSAMPARRAY scanlines, + JDIMENSION num_lines)); +EXTERN(void) jpeg_finish_compress JPP((j_compress_ptr cinfo)); + +/* Precalculate JPEG dimensions for current compression parameters. */ +EXTERN(void) jpeg_calc_jpeg_dimensions JPP((j_compress_ptr cinfo)); + +/* Replaces jpeg_write_scanlines when writing raw downsampled data. */ +EXTERN(JDIMENSION) jpeg_write_raw_data JPP((j_compress_ptr cinfo, + JSAMPIMAGE data, + JDIMENSION num_lines)); + +/* Write a special marker. See libjpeg.txt concerning safe usage. */ +EXTERN(void) jpeg_write_marker + JPP((j_compress_ptr cinfo, int marker, + const JOCTET * dataptr, unsigned int datalen)); +/* Same, but piecemeal. */ +EXTERN(void) jpeg_write_m_header + JPP((j_compress_ptr cinfo, int marker, unsigned int datalen)); +EXTERN(void) jpeg_write_m_byte + JPP((j_compress_ptr cinfo, int val)); + +/* Alternate compression function: just write an abbreviated table file */ +EXTERN(void) jpeg_write_tables JPP((j_compress_ptr cinfo)); + +/* Decompression startup: read start of JPEG datastream to see what's there */ +EXTERN(int) jpeg_read_header JPP((j_decompress_ptr cinfo, + boolean require_image)); +/* Return value is one of: */ +#define JPEG_SUSPENDED 0 /* Suspended due to lack of input data */ +#define JPEG_HEADER_OK 1 /* Found valid image datastream */ +#define JPEG_HEADER_TABLES_ONLY 2 /* Found valid table-specs-only datastream */ +/* If you pass require_image = TRUE (normal case), you need not check for + * a TABLES_ONLY return code; an abbreviated file will cause an error exit. + * JPEG_SUSPENDED is only possible if you use a data source module that can + * give a suspension return (the stdio source module doesn't). + */ + +/* Main entry points for decompression */ +EXTERN(boolean) jpeg_start_decompress JPP((j_decompress_ptr cinfo)); +EXTERN(JDIMENSION) jpeg_read_scanlines JPP((j_decompress_ptr cinfo, + JSAMPARRAY scanlines, + JDIMENSION max_lines)); +EXTERN(boolean) jpeg_finish_decompress JPP((j_decompress_ptr cinfo)); + +/* Replaces jpeg_read_scanlines when reading raw downsampled data. */ +EXTERN(JDIMENSION) jpeg_read_raw_data JPP((j_decompress_ptr cinfo, + JSAMPIMAGE data, + JDIMENSION max_lines)); + +/* Additional entry points for buffered-image mode. */ +EXTERN(boolean) jpeg_has_multiple_scans JPP((j_decompress_ptr cinfo)); +EXTERN(boolean) jpeg_start_output JPP((j_decompress_ptr cinfo, + int scan_number)); +EXTERN(boolean) jpeg_finish_output JPP((j_decompress_ptr cinfo)); +EXTERN(boolean) jpeg_input_complete JPP((j_decompress_ptr cinfo)); +EXTERN(void) jpeg_new_colormap JPP((j_decompress_ptr cinfo)); +EXTERN(int) jpeg_consume_input JPP((j_decompress_ptr cinfo)); +/* Return value is one of: */ +/* #define JPEG_SUSPENDED 0 Suspended due to lack of input data */ +#define JPEG_REACHED_SOS 1 /* Reached start of new scan */ +#define JPEG_REACHED_EOI 2 /* Reached end of image */ +#define JPEG_ROW_COMPLETED 3 /* Completed one iMCU row */ +#define JPEG_SCAN_COMPLETED 4 /* Completed last iMCU row of a scan */ + +/* Precalculate output dimensions for current decompression parameters. */ +EXTERN(void) jpeg_core_output_dimensions JPP((j_decompress_ptr cinfo)); +EXTERN(void) jpeg_calc_output_dimensions JPP((j_decompress_ptr cinfo)); + +/* Control saving of COM and APPn markers into marker_list. */ +EXTERN(void) jpeg_save_markers + JPP((j_decompress_ptr cinfo, int marker_code, + unsigned int length_limit)); + +/* Install a special processing method for COM or APPn markers. */ +EXTERN(void) jpeg_set_marker_processor + JPP((j_decompress_ptr cinfo, int marker_code, + jpeg_marker_parser_method routine)); + +/* Read or write raw DCT coefficients --- useful for lossless transcoding. */ +EXTERN(jvirt_barray_ptr *) jpeg_read_coefficients JPP((j_decompress_ptr cinfo)); +EXTERN(void) jpeg_write_coefficients JPP((j_compress_ptr cinfo, + jvirt_barray_ptr * coef_arrays)); +EXTERN(void) jpeg_copy_critical_parameters JPP((j_decompress_ptr srcinfo, + j_compress_ptr dstinfo)); + +/* If you choose to abort compression or decompression before completing + * jpeg_finish_(de)compress, then you need to clean up to release memory, + * temporary files, etc. You can just call jpeg_destroy_(de)compress + * if you're done with the JPEG object, but if you want to clean it up and + * reuse it, call this: + */ +EXTERN(void) jpeg_abort_compress JPP((j_compress_ptr cinfo)); +EXTERN(void) jpeg_abort_decompress JPP((j_decompress_ptr cinfo)); + +/* Generic versions of jpeg_abort and jpeg_destroy that work on either + * flavor of JPEG object. These may be more convenient in some places. + */ +EXTERN(void) jpeg_abort JPP((j_common_ptr cinfo)); +EXTERN(void) jpeg_destroy JPP((j_common_ptr cinfo)); + +/* Default restart-marker-resync procedure for use by data source modules */ +EXTERN(boolean) jpeg_resync_to_restart JPP((j_decompress_ptr cinfo, + int desired)); + + +/* These marker codes are exported since applications and data source modules + * are likely to want to use them. + */ + +#define JPEG_RST0 0xD0 /* RST0 marker code */ +#define JPEG_EOI 0xD9 /* EOI marker code */ +#define JPEG_APP0 0xE0 /* APP0 marker code */ +#define JPEG_COM 0xFE /* COM marker code */ + + +/* If we have a brain-damaged compiler that emits warnings (or worse, errors) + * for structure definitions that are never filled in, keep it quiet by + * supplying dummy definitions for the various substructures. + */ + +#ifdef INCOMPLETE_TYPES_BROKEN +#ifndef JPEG_INTERNALS /* will be defined in jpegint.h */ +struct jvirt_sarray_control { long dummy; }; +struct jvirt_barray_control { long dummy; }; +struct jpeg_comp_master { long dummy; }; +struct jpeg_c_main_controller { long dummy; }; +struct jpeg_c_prep_controller { long dummy; }; +struct jpeg_c_coef_controller { long dummy; }; +struct jpeg_marker_writer { long dummy; }; +struct jpeg_color_converter { long dummy; }; +struct jpeg_downsampler { long dummy; }; +struct jpeg_forward_dct { long dummy; }; +struct jpeg_entropy_encoder { long dummy; }; +struct jpeg_decomp_master { long dummy; }; +struct jpeg_d_main_controller { long dummy; }; +struct jpeg_d_coef_controller { long dummy; }; +struct jpeg_d_post_controller { long dummy; }; +struct jpeg_input_controller { long dummy; }; +struct jpeg_marker_reader { long dummy; }; +struct jpeg_entropy_decoder { long dummy; }; +struct jpeg_inverse_dct { long dummy; }; +struct jpeg_upsampler { long dummy; }; +struct jpeg_color_deconverter { long dummy; }; +struct jpeg_color_quantizer { long dummy; }; +#endif /* JPEG_INTERNALS */ +#endif /* INCOMPLETE_TYPES_BROKEN */ + + +/* + * The JPEG library modules define JPEG_INTERNALS before including this file. + * The internal structure declarations are read only when that is true. + * Applications using the library should not include jpegint.h, but may wish + * to include jerror.h. + */ + +#ifdef JPEG_INTERNALS +#include "jpegint.h" /* fetch private declarations */ +#include "jerror.h" /* fetch error codes too */ +#endif + +#ifdef __cplusplus +#ifndef DONT_USE_EXTERN_C +} +#endif +#endif + +#endif /* JPEGLIB_H */ diff --git a/jpeg/jpegsr8d.zip b/jpeg/jpegsr8d.zip new file mode 100644 index 0000000..9a12a90 Binary files /dev/null and b/jpeg/jpegsr8d.zip differ diff --git a/jpeg/jpegtran.1 b/jpeg/jpegtran.1 new file mode 100644 index 0000000..0ad1bbc --- /dev/null +++ b/jpeg/jpegtran.1 @@ -0,0 +1,285 @@ +.TH JPEGTRAN 1 "28 December 2009" +.SH NAME +jpegtran \- lossless transformation of JPEG files +.SH SYNOPSIS +.B jpegtran +[ +.I options +] +[ +.I filename +] +.LP +.SH DESCRIPTION +.LP +.B jpegtran +performs various useful transformations of JPEG files. +It can translate the coded representation from one variant of JPEG to another, +for example from baseline JPEG to progressive JPEG or vice versa. It can also +perform some rearrangements of the image data, for example turning an image +from landscape to portrait format by rotation. +.PP +.B jpegtran +works by rearranging the compressed data (DCT coefficients), without +ever fully decoding the image. Therefore, its transformations are lossless: +there is no image degradation at all, which would not be true if you used +.B djpeg +followed by +.B cjpeg +to accomplish the same conversion. But by the same token, +.B jpegtran +cannot perform lossy operations such as changing the image quality. +.PP +.B jpegtran +reads the named JPEG/JFIF file, or the standard input if no file is +named, and produces a JPEG/JFIF file on the standard output. +.SH OPTIONS +All switch names may be abbreviated; for example, +.B \-optimize +may be written +.B \-opt +or +.BR \-o . +Upper and lower case are equivalent. +British spellings are also accepted (e.g., +.BR \-optimise ), +though for brevity these are not mentioned below. +.PP +To specify the coded JPEG representation used in the output file, +.B jpegtran +accepts a subset of the switches recognized by +.BR cjpeg : +.TP +.B \-optimize +Perform optimization of entropy encoding parameters. +.TP +.B \-progressive +Create progressive JPEG file. +.TP +.BI \-restart " N" +Emit a JPEG restart marker every N MCU rows, or every N MCU blocks if "B" is +attached to the number. +.TP +.B \-arithmetic +Use arithmetic coding. +.TP +.BI \-scans " file" +Use the scan script given in the specified text file. +.PP +See +.BR cjpeg (1) +for more details about these switches. +If you specify none of these switches, you get a plain baseline-JPEG output +file. The quality setting and so forth are determined by the input file. +.PP +The image can be losslessly transformed by giving one of these switches: +.TP +.B \-flip horizontal +Mirror image horizontally (left-right). +.TP +.B \-flip vertical +Mirror image vertically (top-bottom). +.TP +.B \-rotate 90 +Rotate image 90 degrees clockwise. +.TP +.B \-rotate 180 +Rotate image 180 degrees. +.TP +.B \-rotate 270 +Rotate image 270 degrees clockwise (or 90 ccw). +.TP +.B \-transpose +Transpose image (across UL-to-LR axis). +.TP +.B \-transverse +Transverse transpose (across UR-to-LL axis). +.IP +The transpose transformation has no restrictions regarding image dimensions. +The other transformations operate rather oddly if the image dimensions are not +a multiple of the iMCU size (usually 8 or 16 pixels), because they can only +transform complete blocks of DCT coefficient data in the desired way. +.IP +.BR jpegtran 's +default behavior when transforming an odd-size image is designed +to preserve exact reversibility and mathematical consistency of the +transformation set. As stated, transpose is able to flip the entire image +area. Horizontal mirroring leaves any partial iMCU column at the right edge +untouched, but is able to flip all rows of the image. Similarly, vertical +mirroring leaves any partial iMCU row at the bottom edge untouched, but is +able to flip all columns. The other transforms can be built up as sequences +of transpose and flip operations; for consistency, their actions on edge +pixels are defined to be the same as the end result of the corresponding +transpose-and-flip sequence. +.IP +For practical use, you may prefer to discard any untransformable edge pixels +rather than having a strange-looking strip along the right and/or bottom edges +of a transformed image. To do this, add the +.B \-trim +switch: +.TP +.B \-trim +Drop non-transformable edge blocks. +.IP +Obviously, a transformation with +.B \-trim +is not reversible, so strictly speaking +.B jpegtran +with this switch is not lossless. Also, the expected mathematical +equivalences between the transformations no longer hold. For example, +.B \-rot 270 -trim +trims only the bottom edge, but +.B \-rot 90 -trim +followed by +.B \-rot 180 -trim +trims both edges. +.IP +If you are only interested in perfect transformation, add the +.B \-perfect +switch: +.TP +.B \-perfect +Fails with an error if the transformation is not perfect. +.IP +For example you may want to do +.IP +.B (jpegtran \-rot 90 -perfect +.I foo.jpg +.B || djpeg +.I foo.jpg +.B | pnmflip \-r90 | cjpeg) +.IP +to do a perfect rotation if available or an approximated one if not. +.PP +We also offer a lossless-crop option, which discards data outside a given +image region but losslessly preserves what is inside. Like the rotate and +flip transforms, lossless crop is restricted by the current JPEG format: the +upper left corner of the selected region must fall on an iMCU boundary. If +this does not hold for the given crop parameters, we silently move the upper +left corner up and/or left to make it so, simultaneously increasing the region +dimensions to keep the lower right crop corner unchanged. (Thus, the output +image covers at least the requested region, but may cover more.) + +The image can be losslessly cropped by giving the switch: +.TP +.B \-crop WxH+X+Y +Crop to a rectangular subarea of width W, height H starting at point X,Y. +.PP +Other not-strictly-lossless transformation switches are: +.TP +.B \-grayscale +Force grayscale output. +.IP +This option discards the chrominance channels if the input image is YCbCr +(ie, a standard color JPEG), resulting in a grayscale JPEG file. The +luminance channel is preserved exactly, so this is a better method of reducing +to grayscale than decompression, conversion, and recompression. This switch +is particularly handy for fixing a monochrome picture that was mistakenly +encoded as a color JPEG. (In such a case, the space savings from getting rid +of the near-empty chroma channels won't be large; but the decoding time for +a grayscale JPEG is substantially less than that for a color JPEG.) +.TP +.BI \-scale " M/N" +Scale the output image by a factor M/N. +.IP +Currently supported scale factors are M/N with all M from 1 to 16, where N is +the source DCT size, which is 8 for baseline JPEG. If the /N part is omitted, +then M specifies the DCT scaled size to be applied on the given input. For +baseline JPEG this is equivalent to M/8 scaling, since the source DCT size +for baseline JPEG is 8. +.B Caution: +An implementation of the JPEG SmartScale extension is required for this +feature. SmartScale enabled JPEG is not yet widely implemented, so many +decoders will be unable to view a SmartScale extended JPEG file at all. +.PP +.B jpegtran +also recognizes these switches that control what to do with "extra" markers, +such as comment blocks: +.TP +.B \-copy none +Copy no extra markers from source file. This setting suppresses all +comments and other excess baggage present in the source file. +.TP +.B \-copy comments +Copy only comment markers. This setting copies comments from the source file, +but discards any other inessential (for image display) data. +.TP +.B \-copy all +Copy all extra markers. This setting preserves miscellaneous markers +found in the source file, such as JFIF thumbnails, Exif data, and Photoshop +settings. In some files these extra markers can be sizable. +.IP +The default behavior is +.BR "\-copy comments" . +(Note: in IJG releases v6 and v6a, +.B jpegtran +always did the equivalent of +.BR "\-copy none" .) +.PP +Additional switches recognized by jpegtran are: +.TP +.BI \-maxmemory " N" +Set limit for amount of memory to use in processing large images. Value is +in thousands of bytes, or millions of bytes if "M" is attached to the +number. For example, +.B \-max 4m +selects 4000000 bytes. If more space is needed, temporary files will be used. +.TP +.BI \-outfile " name" +Send output image to the named file, not to standard output. +.TP +.B \-verbose +Enable debug printout. More +.BR \-v 's +give more output. Also, version information is printed at startup. +.TP +.B \-debug +Same as +.BR \-verbose . +.SH EXAMPLES +.LP +This example converts a baseline JPEG file to progressive form: +.IP +.B jpegtran \-progressive +.I foo.jpg +.B > +.I fooprog.jpg +.PP +This example rotates an image 90 degrees clockwise, discarding any +unrotatable edge pixels: +.IP +.B jpegtran \-rot 90 -trim +.I foo.jpg +.B > +.I foo90.jpg +.SH ENVIRONMENT +.TP +.B JPEGMEM +If this environment variable is set, its value is the default memory limit. +The value is specified as described for the +.B \-maxmemory +switch. +.B JPEGMEM +overrides the default value specified when the program was compiled, and +itself is overridden by an explicit +.BR \-maxmemory . +.SH SEE ALSO +.BR cjpeg (1), +.BR djpeg (1), +.BR rdjpgcom (1), +.BR wrjpgcom (1) +.br +Wallace, Gregory K. "The JPEG Still Picture Compression Standard", +Communications of the ACM, April 1991 (vol. 34, no. 4), pp. 30-44. +.SH AUTHOR +Independent JPEG Group +.SH BUGS +The transform options can't transform odd-size images perfectly. Use +.B \-trim +or +.B \-perfect +if you don't like the results. +.PP +The entire image is read into memory and then written out again, even in +cases where this isn't really necessary. Expect swapping on large images, +especially when using the more complex transform options. diff --git a/jpeg/jpegtran.c b/jpeg/jpegtran.c new file mode 100644 index 0000000..e539e91 --- /dev/null +++ b/jpeg/jpegtran.c @@ -0,0 +1,560 @@ +/* + * jpegtran.c + * + * Copyright (C) 1995-2011, Thomas G. Lane, Guido Vollbeding. + * This file is part of the Independent JPEG Group's software. + * For conditions of distribution and use, see the accompanying README file. + * + * This file contains a command-line user interface for JPEG transcoding. + * It is very similar to cjpeg.c, and partly to djpeg.c, but provides + * lossless transcoding between different JPEG file formats. It also + * provides some lossless and sort-of-lossless transformations of JPEG data. + */ + +#include "cdjpeg.h" /* Common decls for cjpeg/djpeg applications */ +#include "transupp.h" /* Support routines for jpegtran */ +#include "jversion.h" /* for version message */ + +#ifdef USE_CCOMMAND /* command-line reader for Macintosh */ +#ifdef __MWERKS__ +#include /* Metrowerks needs this */ +#include /* ... and this */ +#endif +#ifdef THINK_C +#include /* Think declares it here */ +#endif +#endif + + +/* + * Argument-parsing code. + * The switch parser is designed to be useful with DOS-style command line + * syntax, ie, intermixed switches and file names, where only the switches + * to the left of a given file name affect processing of that file. + * The main program in this file doesn't actually use this capability... + */ + + +static const char * progname; /* program name for error messages */ +static char * outfilename; /* for -outfile switch */ +static char * scaleoption; /* -scale switch */ +static JCOPY_OPTION copyoption; /* -copy switch */ +static jpeg_transform_info transformoption; /* image transformation options */ + + +LOCAL(void) +usage (void) +/* complain about bad command line */ +{ + fprintf(stderr, "usage: %s [switches] ", progname); +#ifdef TWO_FILE_COMMANDLINE + fprintf(stderr, "inputfile outputfile\n"); +#else + fprintf(stderr, "[inputfile]\n"); +#endif + + fprintf(stderr, "Switches (names may be abbreviated):\n"); + fprintf(stderr, " -copy none Copy no extra markers from source file\n"); + fprintf(stderr, " -copy comments Copy only comment markers (default)\n"); + fprintf(stderr, " -copy all Copy all extra markers\n"); +#ifdef ENTROPY_OPT_SUPPORTED + fprintf(stderr, " -optimize Optimize Huffman table (smaller file, but slow compression)\n"); +#endif +#ifdef C_PROGRESSIVE_SUPPORTED + fprintf(stderr, " -progressive Create progressive JPEG file\n"); +#endif + fprintf(stderr, "Switches for modifying the image:\n"); +#if TRANSFORMS_SUPPORTED + fprintf(stderr, " -crop WxH+X+Y Crop to a rectangular subarea\n"); + fprintf(stderr, " -grayscale Reduce to grayscale (omit color data)\n"); + fprintf(stderr, " -flip [horizontal|vertical] Mirror image (left-right or top-bottom)\n"); + fprintf(stderr, " -perfect Fail if there is non-transformable edge blocks\n"); + fprintf(stderr, " -rotate [90|180|270] Rotate image (degrees clockwise)\n"); +#endif + fprintf(stderr, " -scale M/N Scale output image by fraction M/N, eg, 1/8\n"); +#if TRANSFORMS_SUPPORTED + fprintf(stderr, " -transpose Transpose image\n"); + fprintf(stderr, " -transverse Transverse transpose image\n"); + fprintf(stderr, " -trim Drop non-transformable edge blocks\n"); +#endif + fprintf(stderr, "Switches for advanced users:\n"); +#ifdef C_ARITH_CODING_SUPPORTED + fprintf(stderr, " -arithmetic Use arithmetic coding\n"); +#endif + fprintf(stderr, " -restart N Set restart interval in rows, or in blocks with B\n"); + fprintf(stderr, " -maxmemory N Maximum memory to use (in kbytes)\n"); + fprintf(stderr, " -outfile name Specify name for output file\n"); + fprintf(stderr, " -verbose or -debug Emit debug output\n"); + fprintf(stderr, "Switches for wizards:\n"); +#ifdef C_MULTISCAN_FILES_SUPPORTED + fprintf(stderr, " -scans file Create multi-scan JPEG per script file\n"); +#endif + exit(EXIT_FAILURE); +} + + +LOCAL(void) +select_transform (JXFORM_CODE transform) +/* Silly little routine to detect multiple transform options, + * which we can't handle. + */ +{ +#if TRANSFORMS_SUPPORTED + if (transformoption.transform == JXFORM_NONE || + transformoption.transform == transform) { + transformoption.transform = transform; + } else { + fprintf(stderr, "%s: can only do one image transformation at a time\n", + progname); + usage(); + } +#else + fprintf(stderr, "%s: sorry, image transformation was not compiled\n", + progname); + exit(EXIT_FAILURE); +#endif +} + + +LOCAL(int) +parse_switches (j_compress_ptr cinfo, int argc, char **argv, + int last_file_arg_seen, boolean for_real) +/* Parse optional switches. + * Returns argv[] index of first file-name argument (== argc if none). + * Any file names with indexes <= last_file_arg_seen are ignored; + * they have presumably been processed in a previous iteration. + * (Pass 0 for last_file_arg_seen on the first or only iteration.) + * for_real is FALSE on the first (dummy) pass; we may skip any expensive + * processing. + */ +{ + int argn; + char * arg; + boolean simple_progressive; + char * scansarg = NULL; /* saves -scans parm if any */ + + /* Set up default JPEG parameters. */ + simple_progressive = FALSE; + outfilename = NULL; + scaleoption = NULL; + copyoption = JCOPYOPT_DEFAULT; + transformoption.transform = JXFORM_NONE; + transformoption.perfect = FALSE; + transformoption.trim = FALSE; + transformoption.force_grayscale = FALSE; + transformoption.crop = FALSE; + cinfo->err->trace_level = 0; + + /* Scan command line options, adjust parameters */ + + for (argn = 1; argn < argc; argn++) { + arg = argv[argn]; + if (*arg != '-') { + /* Not a switch, must be a file name argument */ + if (argn <= last_file_arg_seen) { + outfilename = NULL; /* -outfile applies to just one input file */ + continue; /* ignore this name if previously processed */ + } + break; /* else done parsing switches */ + } + arg++; /* advance past switch marker character */ + + if (keymatch(arg, "arithmetic", 1)) { + /* Use arithmetic coding. */ +#ifdef C_ARITH_CODING_SUPPORTED + cinfo->arith_code = TRUE; +#else + fprintf(stderr, "%s: sorry, arithmetic coding not supported\n", + progname); + exit(EXIT_FAILURE); +#endif + + } else if (keymatch(arg, "copy", 2)) { + /* Select which extra markers to copy. */ + if (++argn >= argc) /* advance to next argument */ + usage(); + if (keymatch(argv[argn], "none", 1)) { + copyoption = JCOPYOPT_NONE; + } else if (keymatch(argv[argn], "comments", 1)) { + copyoption = JCOPYOPT_COMMENTS; + } else if (keymatch(argv[argn], "all", 1)) { + copyoption = JCOPYOPT_ALL; + } else + usage(); + + } else if (keymatch(arg, "crop", 2)) { + /* Perform lossless cropping. */ +#if TRANSFORMS_SUPPORTED + if (++argn >= argc) /* advance to next argument */ + usage(); + if (! jtransform_parse_crop_spec(&transformoption, argv[argn])) { + fprintf(stderr, "%s: bogus -crop argument '%s'\n", + progname, argv[argn]); + exit(EXIT_FAILURE); + } +#else + select_transform(JXFORM_NONE); /* force an error */ +#endif + + } else if (keymatch(arg, "debug", 1) || keymatch(arg, "verbose", 1)) { + /* Enable debug printouts. */ + /* On first -d, print version identification */ + static boolean printed_version = FALSE; + + if (! printed_version) { + fprintf(stderr, "Independent JPEG Group's JPEGTRAN, version %s\n%s\n", + JVERSION, JCOPYRIGHT); + printed_version = TRUE; + } + cinfo->err->trace_level++; + + } else if (keymatch(arg, "flip", 1)) { + /* Mirror left-right or top-bottom. */ + if (++argn >= argc) /* advance to next argument */ + usage(); + if (keymatch(argv[argn], "horizontal", 1)) + select_transform(JXFORM_FLIP_H); + else if (keymatch(argv[argn], "vertical", 1)) + select_transform(JXFORM_FLIP_V); + else + usage(); + + } else if (keymatch(arg, "grayscale", 1) || keymatch(arg, "greyscale",1)) { + /* Force to grayscale. */ +#if TRANSFORMS_SUPPORTED + transformoption.force_grayscale = TRUE; +#else + select_transform(JXFORM_NONE); /* force an error */ +#endif + + } else if (keymatch(arg, "maxmemory", 3)) { + /* Maximum memory in Kb (or Mb with 'm'). */ + long lval; + char ch = 'x'; + + if (++argn >= argc) /* advance to next argument */ + usage(); + if (sscanf(argv[argn], "%ld%c", &lval, &ch) < 1) + usage(); + if (ch == 'm' || ch == 'M') + lval *= 1000L; + cinfo->mem->max_memory_to_use = lval * 1000L; + + } else if (keymatch(arg, "optimize", 1) || keymatch(arg, "optimise", 1)) { + /* Enable entropy parm optimization. */ +#ifdef ENTROPY_OPT_SUPPORTED + cinfo->optimize_coding = TRUE; +#else + fprintf(stderr, "%s: sorry, entropy optimization was not compiled\n", + progname); + exit(EXIT_FAILURE); +#endif + + } else if (keymatch(arg, "outfile", 4)) { + /* Set output file name. */ + if (++argn >= argc) /* advance to next argument */ + usage(); + outfilename = argv[argn]; /* save it away for later use */ + + } else if (keymatch(arg, "perfect", 2)) { + /* Fail if there is any partial edge MCUs that the transform can't + * handle. */ + transformoption.perfect = TRUE; + + } else if (keymatch(arg, "progressive", 2)) { + /* Select simple progressive mode. */ +#ifdef C_PROGRESSIVE_SUPPORTED + simple_progressive = TRUE; + /* We must postpone execution until num_components is known. */ +#else + fprintf(stderr, "%s: sorry, progressive output was not compiled\n", + progname); + exit(EXIT_FAILURE); +#endif + + } else if (keymatch(arg, "restart", 1)) { + /* Restart interval in MCU rows (or in MCUs with 'b'). */ + long lval; + char ch = 'x'; + + if (++argn >= argc) /* advance to next argument */ + usage(); + if (sscanf(argv[argn], "%ld%c", &lval, &ch) < 1) + usage(); + if (lval < 0 || lval > 65535L) + usage(); + if (ch == 'b' || ch == 'B') { + cinfo->restart_interval = (unsigned int) lval; + cinfo->restart_in_rows = 0; /* else prior '-restart n' overrides me */ + } else { + cinfo->restart_in_rows = (int) lval; + /* restart_interval will be computed during startup */ + } + + } else if (keymatch(arg, "rotate", 2)) { + /* Rotate 90, 180, or 270 degrees (measured clockwise). */ + if (++argn >= argc) /* advance to next argument */ + usage(); + if (keymatch(argv[argn], "90", 2)) + select_transform(JXFORM_ROT_90); + else if (keymatch(argv[argn], "180", 3)) + select_transform(JXFORM_ROT_180); + else if (keymatch(argv[argn], "270", 3)) + select_transform(JXFORM_ROT_270); + else + usage(); + + } else if (keymatch(arg, "scale", 4)) { + /* Scale the output image by a fraction M/N. */ + if (++argn >= argc) /* advance to next argument */ + usage(); + scaleoption = argv[argn]; + /* We must postpone processing until decompression startup. */ + + } else if (keymatch(arg, "scans", 1)) { + /* Set scan script. */ +#ifdef C_MULTISCAN_FILES_SUPPORTED + if (++argn >= argc) /* advance to next argument */ + usage(); + scansarg = argv[argn]; + /* We must postpone reading the file in case -progressive appears. */ +#else + fprintf(stderr, "%s: sorry, multi-scan output was not compiled\n", + progname); + exit(EXIT_FAILURE); +#endif + + } else if (keymatch(arg, "transpose", 1)) { + /* Transpose (across UL-to-LR axis). */ + select_transform(JXFORM_TRANSPOSE); + + } else if (keymatch(arg, "transverse", 6)) { + /* Transverse transpose (across UR-to-LL axis). */ + select_transform(JXFORM_TRANSVERSE); + + } else if (keymatch(arg, "trim", 3)) { + /* Trim off any partial edge MCUs that the transform can't handle. */ + transformoption.trim = TRUE; + + } else { + usage(); /* bogus switch */ + } + } + + /* Post-switch-scanning cleanup */ + + if (for_real) { + +#ifdef C_PROGRESSIVE_SUPPORTED + if (simple_progressive) /* process -progressive; -scans can override */ + jpeg_simple_progression(cinfo); +#endif + +#ifdef C_MULTISCAN_FILES_SUPPORTED + if (scansarg != NULL) /* process -scans if it was present */ + if (! read_scan_script(cinfo, scansarg)) + usage(); +#endif + } + + return argn; /* return index of next arg (file name) */ +} + + +/* + * The main program. + */ + +int +main (int argc, char **argv) +{ + struct jpeg_decompress_struct srcinfo; + struct jpeg_compress_struct dstinfo; + struct jpeg_error_mgr jsrcerr, jdsterr; +#ifdef PROGRESS_REPORT + struct cdjpeg_progress_mgr progress; +#endif + jvirt_barray_ptr * src_coef_arrays; + jvirt_barray_ptr * dst_coef_arrays; + int file_index; + /* We assume all-in-memory processing and can therefore use only a + * single file pointer for sequential input and output operation. + */ + FILE * fp; + + /* On Mac, fetch a command line. */ +#ifdef USE_CCOMMAND + argc = ccommand(&argv); +#endif + + progname = argv[0]; + if (progname == NULL || progname[0] == 0) + progname = "jpegtran"; /* in case C library doesn't provide it */ + + /* Initialize the JPEG decompression object with default error handling. */ + srcinfo.err = jpeg_std_error(&jsrcerr); + jpeg_create_decompress(&srcinfo); + /* Initialize the JPEG compression object with default error handling. */ + dstinfo.err = jpeg_std_error(&jdsterr); + jpeg_create_compress(&dstinfo); + + /* Now safe to enable signal catcher. + * Note: we assume only the decompression object will have virtual arrays. + */ +#ifdef NEED_SIGNAL_CATCHER + enable_signal_catcher((j_common_ptr) &srcinfo); +#endif + + /* Scan command line to find file names. + * It is convenient to use just one switch-parsing routine, but the switch + * values read here are mostly ignored; we will rescan the switches after + * opening the input file. Also note that most of the switches affect the + * destination JPEG object, so we parse into that and then copy over what + * needs to affects the source too. + */ + + file_index = parse_switches(&dstinfo, argc, argv, 0, FALSE); + jsrcerr.trace_level = jdsterr.trace_level; + srcinfo.mem->max_memory_to_use = dstinfo.mem->max_memory_to_use; + +#ifdef TWO_FILE_COMMANDLINE + /* Must have either -outfile switch or explicit output file name */ + if (outfilename == NULL) { + if (file_index != argc-2) { + fprintf(stderr, "%s: must name one input and one output file\n", + progname); + usage(); + } + outfilename = argv[file_index+1]; + } else { + if (file_index != argc-1) { + fprintf(stderr, "%s: must name one input and one output file\n", + progname); + usage(); + } + } +#else + /* Unix style: expect zero or one file name */ + if (file_index < argc-1) { + fprintf(stderr, "%s: only one input file\n", progname); + usage(); + } +#endif /* TWO_FILE_COMMANDLINE */ + + /* Open the input file. */ + if (file_index < argc) { + if ((fp = fopen(argv[file_index], READ_BINARY)) == NULL) { + fprintf(stderr, "%s: can't open %s for reading\n", progname, argv[file_index]); + exit(EXIT_FAILURE); + } + } else { + /* default input file is stdin */ + fp = read_stdin(); + } + +#ifdef PROGRESS_REPORT + start_progress_monitor((j_common_ptr) &dstinfo, &progress); +#endif + + /* Specify data source for decompression */ + jpeg_stdio_src(&srcinfo, fp); + + /* Enable saving of extra markers that we want to copy */ + jcopy_markers_setup(&srcinfo, copyoption); + + /* Read file header */ + (void) jpeg_read_header(&srcinfo, TRUE); + + /* Adjust default decompression parameters */ + if (scaleoption != NULL) + if (sscanf(scaleoption, "%d/%d", + &srcinfo.scale_num, &srcinfo.scale_denom) < 1) + usage(); + + /* Any space needed by a transform option must be requested before + * jpeg_read_coefficients so that memory allocation will be done right. + */ +#if TRANSFORMS_SUPPORTED + /* Fail right away if -perfect is given and transformation is not perfect. + */ + if (!jtransform_request_workspace(&srcinfo, &transformoption)) { + fprintf(stderr, "%s: transformation is not perfect\n", progname); + exit(EXIT_FAILURE); + } +#endif + + /* Read source file as DCT coefficients */ + src_coef_arrays = jpeg_read_coefficients(&srcinfo); + + /* Initialize destination compression parameters from source values */ + jpeg_copy_critical_parameters(&srcinfo, &dstinfo); + + /* Adjust destination parameters if required by transform options; + * also find out which set of coefficient arrays will hold the output. + */ +#if TRANSFORMS_SUPPORTED + dst_coef_arrays = jtransform_adjust_parameters(&srcinfo, &dstinfo, + src_coef_arrays, + &transformoption); +#else + dst_coef_arrays = src_coef_arrays; +#endif + + /* Close input file, if we opened it. + * Note: we assume that jpeg_read_coefficients consumed all input + * until JPEG_REACHED_EOI, and that jpeg_finish_decompress will + * only consume more while (! cinfo->inputctl->eoi_reached). + * We cannot call jpeg_finish_decompress here since we still need the + * virtual arrays allocated from the source object for processing. + */ + if (fp != stdin) + fclose(fp); + + /* Open the output file. */ + if (outfilename != NULL) { + if ((fp = fopen(outfilename, WRITE_BINARY)) == NULL) { + fprintf(stderr, "%s: can't open %s for writing\n", progname, outfilename); + exit(EXIT_FAILURE); + } + } else { + /* default output file is stdout */ + fp = write_stdout(); + } + + /* Adjust default compression parameters by re-parsing the options */ + file_index = parse_switches(&dstinfo, argc, argv, 0, TRUE); + + /* Specify data destination for compression */ + jpeg_stdio_dest(&dstinfo, fp); + + /* Start compressor (note no image data is actually written here) */ + jpeg_write_coefficients(&dstinfo, dst_coef_arrays); + + /* Copy to the output file any extra markers that we want to preserve */ + jcopy_markers_execute(&srcinfo, &dstinfo, copyoption); + + /* Execute image transformation, if any */ +#if TRANSFORMS_SUPPORTED + jtransform_execute_transformation(&srcinfo, &dstinfo, + src_coef_arrays, + &transformoption); +#endif + + /* Finish compression and release memory */ + jpeg_finish_compress(&dstinfo); + jpeg_destroy_compress(&dstinfo); + (void) jpeg_finish_decompress(&srcinfo); + jpeg_destroy_decompress(&srcinfo); + + /* Close output file, if we opened it */ + if (fp != stdout) + fclose(fp); + +#ifdef PROGRESS_REPORT + end_progress_monitor((j_common_ptr) &dstinfo); +#endif + + /* All done. */ + exit(jsrcerr.num_warnings + jdsterr.num_warnings ?EXIT_WARNING:EXIT_SUCCESS); + return 0; /* suppress no-return-value warnings */ +} diff --git a/jpeg/jquant1.c b/jpeg/jquant1.c new file mode 100644 index 0000000..9d11f70 --- /dev/null +++ b/jpeg/jquant1.c @@ -0,0 +1,857 @@ +/* + * jquant1.c + * + * Copyright (C) 1991-1996, Thomas G. Lane. + * Modified 2011 by Guido Vollbeding. + * This file is part of the Independent JPEG Group's software. + * For conditions of distribution and use, see the accompanying README file. + * + * This file contains 1-pass color quantization (color mapping) routines. + * These routines provide mapping to a fixed color map using equally spaced + * color values. Optional Floyd-Steinberg or ordered dithering is available. + */ + +#define JPEG_INTERNALS +#include "jinclude.h" +#include "jpeglib.h" + +#ifdef QUANT_1PASS_SUPPORTED + + +/* + * The main purpose of 1-pass quantization is to provide a fast, if not very + * high quality, colormapped output capability. A 2-pass quantizer usually + * gives better visual quality; however, for quantized grayscale output this + * quantizer is perfectly adequate. Dithering is highly recommended with this + * quantizer, though you can turn it off if you really want to. + * + * In 1-pass quantization the colormap must be chosen in advance of seeing the + * image. We use a map consisting of all combinations of Ncolors[i] color + * values for the i'th component. The Ncolors[] values are chosen so that + * their product, the total number of colors, is no more than that requested. + * (In most cases, the product will be somewhat less.) + * + * Since the colormap is orthogonal, the representative value for each color + * component can be determined without considering the other components; + * then these indexes can be combined into a colormap index by a standard + * N-dimensional-array-subscript calculation. Most of the arithmetic involved + * can be precalculated and stored in the lookup table colorindex[]. + * colorindex[i][j] maps pixel value j in component i to the nearest + * representative value (grid plane) for that component; this index is + * multiplied by the array stride for component i, so that the + * index of the colormap entry closest to a given pixel value is just + * sum( colorindex[component-number][pixel-component-value] ) + * Aside from being fast, this scheme allows for variable spacing between + * representative values with no additional lookup cost. + * + * If gamma correction has been applied in color conversion, it might be wise + * to adjust the color grid spacing so that the representative colors are + * equidistant in linear space. At this writing, gamma correction is not + * implemented by jdcolor, so nothing is done here. + */ + + +/* Declarations for ordered dithering. + * + * We use a standard 16x16 ordered dither array. The basic concept of ordered + * dithering is described in many references, for instance Dale Schumacher's + * chapter II.2 of Graphics Gems II (James Arvo, ed. Academic Press, 1991). + * In place of Schumacher's comparisons against a "threshold" value, we add a + * "dither" value to the input pixel and then round the result to the nearest + * output value. The dither value is equivalent to (0.5 - threshold) times + * the distance between output values. For ordered dithering, we assume that + * the output colors are equally spaced; if not, results will probably be + * worse, since the dither may be too much or too little at a given point. + * + * The normal calculation would be to form pixel value + dither, range-limit + * this to 0..MAXJSAMPLE, and then index into the colorindex table as usual. + * We can skip the separate range-limiting step by extending the colorindex + * table in both directions. + */ + +#define ODITHER_SIZE 16 /* dimension of dither matrix */ +/* NB: if ODITHER_SIZE is not a power of 2, ODITHER_MASK uses will break */ +#define ODITHER_CELLS (ODITHER_SIZE*ODITHER_SIZE) /* # cells in matrix */ +#define ODITHER_MASK (ODITHER_SIZE-1) /* mask for wrapping around counters */ + +typedef int ODITHER_MATRIX[ODITHER_SIZE][ODITHER_SIZE]; +typedef int (*ODITHER_MATRIX_PTR)[ODITHER_SIZE]; + +static const UINT8 base_dither_matrix[ODITHER_SIZE][ODITHER_SIZE] = { + /* Bayer's order-4 dither array. Generated by the code given in + * Stephen Hawley's article "Ordered Dithering" in Graphics Gems I. + * The values in this array must range from 0 to ODITHER_CELLS-1. + */ + { 0,192, 48,240, 12,204, 60,252, 3,195, 51,243, 15,207, 63,255 }, + { 128, 64,176,112,140, 76,188,124,131, 67,179,115,143, 79,191,127 }, + { 32,224, 16,208, 44,236, 28,220, 35,227, 19,211, 47,239, 31,223 }, + { 160, 96,144, 80,172,108,156, 92,163, 99,147, 83,175,111,159, 95 }, + { 8,200, 56,248, 4,196, 52,244, 11,203, 59,251, 7,199, 55,247 }, + { 136, 72,184,120,132, 68,180,116,139, 75,187,123,135, 71,183,119 }, + { 40,232, 24,216, 36,228, 20,212, 43,235, 27,219, 39,231, 23,215 }, + { 168,104,152, 88,164,100,148, 84,171,107,155, 91,167,103,151, 87 }, + { 2,194, 50,242, 14,206, 62,254, 1,193, 49,241, 13,205, 61,253 }, + { 130, 66,178,114,142, 78,190,126,129, 65,177,113,141, 77,189,125 }, + { 34,226, 18,210, 46,238, 30,222, 33,225, 17,209, 45,237, 29,221 }, + { 162, 98,146, 82,174,110,158, 94,161, 97,145, 81,173,109,157, 93 }, + { 10,202, 58,250, 6,198, 54,246, 9,201, 57,249, 5,197, 53,245 }, + { 138, 74,186,122,134, 70,182,118,137, 73,185,121,133, 69,181,117 }, + { 42,234, 26,218, 38,230, 22,214, 41,233, 25,217, 37,229, 21,213 }, + { 170,106,154, 90,166,102,150, 86,169,105,153, 89,165,101,149, 85 } +}; + + +/* Declarations for Floyd-Steinberg dithering. + * + * Errors are accumulated into the array fserrors[], at a resolution of + * 1/16th of a pixel count. The error at a given pixel is propagated + * to its not-yet-processed neighbors using the standard F-S fractions, + * ... (here) 7/16 + * 3/16 5/16 1/16 + * We work left-to-right on even rows, right-to-left on odd rows. + * + * We can get away with a single array (holding one row's worth of errors) + * by using it to store the current row's errors at pixel columns not yet + * processed, but the next row's errors at columns already processed. We + * need only a few extra variables to hold the errors immediately around the + * current column. (If we are lucky, those variables are in registers, but + * even if not, they're probably cheaper to access than array elements are.) + * + * The fserrors[] array is indexed [component#][position]. + * We provide (#columns + 2) entries per component; the extra entry at each + * end saves us from special-casing the first and last pixels. + * + * Note: on a wide image, we might not have enough room in a PC's near data + * segment to hold the error array; so it is allocated with alloc_large. + */ + +#if BITS_IN_JSAMPLE == 8 +typedef INT16 FSERROR; /* 16 bits should be enough */ +typedef int LOCFSERROR; /* use 'int' for calculation temps */ +#else +typedef INT32 FSERROR; /* may need more than 16 bits */ +typedef INT32 LOCFSERROR; /* be sure calculation temps are big enough */ +#endif + +typedef FSERROR FAR *FSERRPTR; /* pointer to error array (in FAR storage!) */ + + +/* Private subobject */ + +#define MAX_Q_COMPS 4 /* max components I can handle */ + +typedef struct { + struct jpeg_color_quantizer pub; /* public fields */ + + /* Initially allocated colormap is saved here */ + JSAMPARRAY sv_colormap; /* The color map as a 2-D pixel array */ + int sv_actual; /* number of entries in use */ + + JSAMPARRAY colorindex; /* Precomputed mapping for speed */ + /* colorindex[i][j] = index of color closest to pixel value j in component i, + * premultiplied as described above. Since colormap indexes must fit into + * JSAMPLEs, the entries of this array will too. + */ + boolean is_padded; /* is the colorindex padded for odither? */ + + int Ncolors[MAX_Q_COMPS]; /* # of values alloced to each component */ + + /* Variables for ordered dithering */ + int row_index; /* cur row's vertical index in dither matrix */ + ODITHER_MATRIX_PTR odither[MAX_Q_COMPS]; /* one dither array per component */ + + /* Variables for Floyd-Steinberg dithering */ + FSERRPTR fserrors[MAX_Q_COMPS]; /* accumulated errors */ + boolean on_odd_row; /* flag to remember which row we are on */ +} my_cquantizer; + +typedef my_cquantizer * my_cquantize_ptr; + + +/* + * Policy-making subroutines for create_colormap and create_colorindex. + * These routines determine the colormap to be used. The rest of the module + * only assumes that the colormap is orthogonal. + * + * * select_ncolors decides how to divvy up the available colors + * among the components. + * * output_value defines the set of representative values for a component. + * * largest_input_value defines the mapping from input values to + * representative values for a component. + * Note that the latter two routines may impose different policies for + * different components, though this is not currently done. + */ + + +LOCAL(int) +select_ncolors (j_decompress_ptr cinfo, int Ncolors[]) +/* Determine allocation of desired colors to components, */ +/* and fill in Ncolors[] array to indicate choice. */ +/* Return value is total number of colors (product of Ncolors[] values). */ +{ + int nc = cinfo->out_color_components; /* number of color components */ + int max_colors = cinfo->desired_number_of_colors; + int total_colors, iroot, i, j; + boolean changed; + long temp; + static const int RGB_order[3] = { RGB_GREEN, RGB_RED, RGB_BLUE }; + + /* We can allocate at least the nc'th root of max_colors per component. */ + /* Compute floor(nc'th root of max_colors). */ + iroot = 1; + do { + iroot++; + temp = iroot; /* set temp = iroot ** nc */ + for (i = 1; i < nc; i++) + temp *= iroot; + } while (temp <= (long) max_colors); /* repeat till iroot exceeds root */ + iroot--; /* now iroot = floor(root) */ + + /* Must have at least 2 color values per component */ + if (iroot < 2) + ERREXIT1(cinfo, JERR_QUANT_FEW_COLORS, (int) temp); + + /* Initialize to iroot color values for each component */ + total_colors = 1; + for (i = 0; i < nc; i++) { + Ncolors[i] = iroot; + total_colors *= iroot; + } + /* We may be able to increment the count for one or more components without + * exceeding max_colors, though we know not all can be incremented. + * Sometimes, the first component can be incremented more than once! + * (Example: for 16 colors, we start at 2*2*2, go to 3*2*2, then 4*2*2.) + * In RGB colorspace, try to increment G first, then R, then B. + */ + do { + changed = FALSE; + for (i = 0; i < nc; i++) { + j = (cinfo->out_color_space == JCS_RGB ? RGB_order[i] : i); + /* calculate new total_colors if Ncolors[j] is incremented */ + temp = total_colors / Ncolors[j]; + temp *= Ncolors[j]+1; /* done in long arith to avoid oflo */ + if (temp > (long) max_colors) + break; /* won't fit, done with this pass */ + Ncolors[j]++; /* OK, apply the increment */ + total_colors = (int) temp; + changed = TRUE; + } + } while (changed); + + return total_colors; +} + + +LOCAL(int) +output_value (j_decompress_ptr cinfo, int ci, int j, int maxj) +/* Return j'th output value, where j will range from 0 to maxj */ +/* The output values must fall in 0..MAXJSAMPLE in increasing order */ +{ + /* We always provide values 0 and MAXJSAMPLE for each component; + * any additional values are equally spaced between these limits. + * (Forcing the upper and lower values to the limits ensures that + * dithering can't produce a color outside the selected gamut.) + */ + return (int) (((INT32) j * MAXJSAMPLE + maxj/2) / maxj); +} + + +LOCAL(int) +largest_input_value (j_decompress_ptr cinfo, int ci, int j, int maxj) +/* Return largest input value that should map to j'th output value */ +/* Must have largest(j=0) >= 0, and largest(j=maxj) >= MAXJSAMPLE */ +{ + /* Breakpoints are halfway between values returned by output_value */ + return (int) (((INT32) (2*j + 1) * MAXJSAMPLE + maxj) / (2*maxj)); +} + + +/* + * Create the colormap. + */ + +LOCAL(void) +create_colormap (j_decompress_ptr cinfo) +{ + my_cquantize_ptr cquantize = (my_cquantize_ptr) cinfo->cquantize; + JSAMPARRAY colormap; /* Created colormap */ + int total_colors; /* Number of distinct output colors */ + int i,j,k, nci, blksize, blkdist, ptr, val; + + /* Select number of colors for each component */ + total_colors = select_ncolors(cinfo, cquantize->Ncolors); + + /* Report selected color counts */ + if (cinfo->out_color_components == 3) + TRACEMS4(cinfo, 1, JTRC_QUANT_3_NCOLORS, + total_colors, cquantize->Ncolors[0], + cquantize->Ncolors[1], cquantize->Ncolors[2]); + else + TRACEMS1(cinfo, 1, JTRC_QUANT_NCOLORS, total_colors); + + /* Allocate and fill in the colormap. */ + /* The colors are ordered in the map in standard row-major order, */ + /* i.e. rightmost (highest-indexed) color changes most rapidly. */ + + colormap = (*cinfo->mem->alloc_sarray) + ((j_common_ptr) cinfo, JPOOL_IMAGE, + (JDIMENSION) total_colors, (JDIMENSION) cinfo->out_color_components); + + /* blksize is number of adjacent repeated entries for a component */ + /* blkdist is distance between groups of identical entries for a component */ + blkdist = total_colors; + + for (i = 0; i < cinfo->out_color_components; i++) { + /* fill in colormap entries for i'th color component */ + nci = cquantize->Ncolors[i]; /* # of distinct values for this color */ + blksize = blkdist / nci; + for (j = 0; j < nci; j++) { + /* Compute j'th output value (out of nci) for component */ + val = output_value(cinfo, i, j, nci-1); + /* Fill in all colormap entries that have this value of this component */ + for (ptr = j * blksize; ptr < total_colors; ptr += blkdist) { + /* fill in blksize entries beginning at ptr */ + for (k = 0; k < blksize; k++) + colormap[i][ptr+k] = (JSAMPLE) val; + } + } + blkdist = blksize; /* blksize of this color is blkdist of next */ + } + + /* Save the colormap in private storage, + * where it will survive color quantization mode changes. + */ + cquantize->sv_colormap = colormap; + cquantize->sv_actual = total_colors; +} + + +/* + * Create the color index table. + */ + +LOCAL(void) +create_colorindex (j_decompress_ptr cinfo) +{ + my_cquantize_ptr cquantize = (my_cquantize_ptr) cinfo->cquantize; + JSAMPROW indexptr; + int i,j,k, nci, blksize, val, pad; + + /* For ordered dither, we pad the color index tables by MAXJSAMPLE in + * each direction (input index values can be -MAXJSAMPLE .. 2*MAXJSAMPLE). + * This is not necessary in the other dithering modes. However, we + * flag whether it was done in case user changes dithering mode. + */ + if (cinfo->dither_mode == JDITHER_ORDERED) { + pad = MAXJSAMPLE*2; + cquantize->is_padded = TRUE; + } else { + pad = 0; + cquantize->is_padded = FALSE; + } + + cquantize->colorindex = (*cinfo->mem->alloc_sarray) + ((j_common_ptr) cinfo, JPOOL_IMAGE, + (JDIMENSION) (MAXJSAMPLE+1 + pad), + (JDIMENSION) cinfo->out_color_components); + + /* blksize is number of adjacent repeated entries for a component */ + blksize = cquantize->sv_actual; + + for (i = 0; i < cinfo->out_color_components; i++) { + /* fill in colorindex entries for i'th color component */ + nci = cquantize->Ncolors[i]; /* # of distinct values for this color */ + blksize = blksize / nci; + + /* adjust colorindex pointers to provide padding at negative indexes. */ + if (pad) + cquantize->colorindex[i] += MAXJSAMPLE; + + /* in loop, val = index of current output value, */ + /* and k = largest j that maps to current val */ + indexptr = cquantize->colorindex[i]; + val = 0; + k = largest_input_value(cinfo, i, 0, nci-1); + for (j = 0; j <= MAXJSAMPLE; j++) { + while (j > k) /* advance val if past boundary */ + k = largest_input_value(cinfo, i, ++val, nci-1); + /* premultiply so that no multiplication needed in main processing */ + indexptr[j] = (JSAMPLE) (val * blksize); + } + /* Pad at both ends if necessary */ + if (pad) + for (j = 1; j <= MAXJSAMPLE; j++) { + indexptr[-j] = indexptr[0]; + indexptr[MAXJSAMPLE+j] = indexptr[MAXJSAMPLE]; + } + } +} + + +/* + * Create an ordered-dither array for a component having ncolors + * distinct output values. + */ + +LOCAL(ODITHER_MATRIX_PTR) +make_odither_array (j_decompress_ptr cinfo, int ncolors) +{ + ODITHER_MATRIX_PTR odither; + int j,k; + INT32 num,den; + + odither = (ODITHER_MATRIX_PTR) + (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, + SIZEOF(ODITHER_MATRIX)); + /* The inter-value distance for this color is MAXJSAMPLE/(ncolors-1). + * Hence the dither value for the matrix cell with fill order f + * (f=0..N-1) should be (N-1-2*f)/(2*N) * MAXJSAMPLE/(ncolors-1). + * On 16-bit-int machine, be careful to avoid overflow. + */ + den = 2 * ODITHER_CELLS * ((INT32) (ncolors - 1)); + for (j = 0; j < ODITHER_SIZE; j++) { + for (k = 0; k < ODITHER_SIZE; k++) { + num = ((INT32) (ODITHER_CELLS-1 - 2*((int)base_dither_matrix[j][k]))) + * MAXJSAMPLE; + /* Ensure round towards zero despite C's lack of consistency + * about rounding negative values in integer division... + */ + odither[j][k] = (int) (num<0 ? -((-num)/den) : num/den); + } + } + return odither; +} + + +/* + * Create the ordered-dither tables. + * Components having the same number of representative colors may + * share a dither table. + */ + +LOCAL(void) +create_odither_tables (j_decompress_ptr cinfo) +{ + my_cquantize_ptr cquantize = (my_cquantize_ptr) cinfo->cquantize; + ODITHER_MATRIX_PTR odither; + int i, j, nci; + + for (i = 0; i < cinfo->out_color_components; i++) { + nci = cquantize->Ncolors[i]; /* # of distinct values for this color */ + odither = NULL; /* search for matching prior component */ + for (j = 0; j < i; j++) { + if (nci == cquantize->Ncolors[j]) { + odither = cquantize->odither[j]; + break; + } + } + if (odither == NULL) /* need a new table? */ + odither = make_odither_array(cinfo, nci); + cquantize->odither[i] = odither; + } +} + + +/* + * Map some rows of pixels to the output colormapped representation. + */ + +METHODDEF(void) +color_quantize (j_decompress_ptr cinfo, JSAMPARRAY input_buf, + JSAMPARRAY output_buf, int num_rows) +/* General case, no dithering */ +{ + my_cquantize_ptr cquantize = (my_cquantize_ptr) cinfo->cquantize; + JSAMPARRAY colorindex = cquantize->colorindex; + register int pixcode, ci; + register JSAMPROW ptrin, ptrout; + int row; + JDIMENSION col; + JDIMENSION width = cinfo->output_width; + register int nc = cinfo->out_color_components; + + for (row = 0; row < num_rows; row++) { + ptrin = input_buf[row]; + ptrout = output_buf[row]; + for (col = width; col > 0; col--) { + pixcode = 0; + for (ci = 0; ci < nc; ci++) { + pixcode += GETJSAMPLE(colorindex[ci][GETJSAMPLE(*ptrin++)]); + } + *ptrout++ = (JSAMPLE) pixcode; + } + } +} + + +METHODDEF(void) +color_quantize3 (j_decompress_ptr cinfo, JSAMPARRAY input_buf, + JSAMPARRAY output_buf, int num_rows) +/* Fast path for out_color_components==3, no dithering */ +{ + my_cquantize_ptr cquantize = (my_cquantize_ptr) cinfo->cquantize; + register int pixcode; + register JSAMPROW ptrin, ptrout; + JSAMPROW colorindex0 = cquantize->colorindex[0]; + JSAMPROW colorindex1 = cquantize->colorindex[1]; + JSAMPROW colorindex2 = cquantize->colorindex[2]; + int row; + JDIMENSION col; + JDIMENSION width = cinfo->output_width; + + for (row = 0; row < num_rows; row++) { + ptrin = input_buf[row]; + ptrout = output_buf[row]; + for (col = width; col > 0; col--) { + pixcode = GETJSAMPLE(colorindex0[GETJSAMPLE(*ptrin++)]); + pixcode += GETJSAMPLE(colorindex1[GETJSAMPLE(*ptrin++)]); + pixcode += GETJSAMPLE(colorindex2[GETJSAMPLE(*ptrin++)]); + *ptrout++ = (JSAMPLE) pixcode; + } + } +} + + +METHODDEF(void) +quantize_ord_dither (j_decompress_ptr cinfo, JSAMPARRAY input_buf, + JSAMPARRAY output_buf, int num_rows) +/* General case, with ordered dithering */ +{ + my_cquantize_ptr cquantize = (my_cquantize_ptr) cinfo->cquantize; + register JSAMPROW input_ptr; + register JSAMPROW output_ptr; + JSAMPROW colorindex_ci; + int * dither; /* points to active row of dither matrix */ + int row_index, col_index; /* current indexes into dither matrix */ + int nc = cinfo->out_color_components; + int ci; + int row; + JDIMENSION col; + JDIMENSION width = cinfo->output_width; + + for (row = 0; row < num_rows; row++) { + /* Initialize output values to 0 so can process components separately */ + FMEMZERO((void FAR *) output_buf[row], + (size_t) (width * SIZEOF(JSAMPLE))); + row_index = cquantize->row_index; + for (ci = 0; ci < nc; ci++) { + input_ptr = input_buf[row] + ci; + output_ptr = output_buf[row]; + colorindex_ci = cquantize->colorindex[ci]; + dither = cquantize->odither[ci][row_index]; + col_index = 0; + + for (col = width; col > 0; col--) { + /* Form pixel value + dither, range-limit to 0..MAXJSAMPLE, + * select output value, accumulate into output code for this pixel. + * Range-limiting need not be done explicitly, as we have extended + * the colorindex table to produce the right answers for out-of-range + * inputs. The maximum dither is +- MAXJSAMPLE; this sets the + * required amount of padding. + */ + *output_ptr += colorindex_ci[GETJSAMPLE(*input_ptr)+dither[col_index]]; + input_ptr += nc; + output_ptr++; + col_index = (col_index + 1) & ODITHER_MASK; + } + } + /* Advance row index for next row */ + row_index = (row_index + 1) & ODITHER_MASK; + cquantize->row_index = row_index; + } +} + + +METHODDEF(void) +quantize3_ord_dither (j_decompress_ptr cinfo, JSAMPARRAY input_buf, + JSAMPARRAY output_buf, int num_rows) +/* Fast path for out_color_components==3, with ordered dithering */ +{ + my_cquantize_ptr cquantize = (my_cquantize_ptr) cinfo->cquantize; + register int pixcode; + register JSAMPROW input_ptr; + register JSAMPROW output_ptr; + JSAMPROW colorindex0 = cquantize->colorindex[0]; + JSAMPROW colorindex1 = cquantize->colorindex[1]; + JSAMPROW colorindex2 = cquantize->colorindex[2]; + int * dither0; /* points to active row of dither matrix */ + int * dither1; + int * dither2; + int row_index, col_index; /* current indexes into dither matrix */ + int row; + JDIMENSION col; + JDIMENSION width = cinfo->output_width; + + for (row = 0; row < num_rows; row++) { + row_index = cquantize->row_index; + input_ptr = input_buf[row]; + output_ptr = output_buf[row]; + dither0 = cquantize->odither[0][row_index]; + dither1 = cquantize->odither[1][row_index]; + dither2 = cquantize->odither[2][row_index]; + col_index = 0; + + for (col = width; col > 0; col--) { + pixcode = GETJSAMPLE(colorindex0[GETJSAMPLE(*input_ptr++) + + dither0[col_index]]); + pixcode += GETJSAMPLE(colorindex1[GETJSAMPLE(*input_ptr++) + + dither1[col_index]]); + pixcode += GETJSAMPLE(colorindex2[GETJSAMPLE(*input_ptr++) + + dither2[col_index]]); + *output_ptr++ = (JSAMPLE) pixcode; + col_index = (col_index + 1) & ODITHER_MASK; + } + row_index = (row_index + 1) & ODITHER_MASK; + cquantize->row_index = row_index; + } +} + + +METHODDEF(void) +quantize_fs_dither (j_decompress_ptr cinfo, JSAMPARRAY input_buf, + JSAMPARRAY output_buf, int num_rows) +/* General case, with Floyd-Steinberg dithering */ +{ + my_cquantize_ptr cquantize = (my_cquantize_ptr) cinfo->cquantize; + register LOCFSERROR cur; /* current error or pixel value */ + LOCFSERROR belowerr; /* error for pixel below cur */ + LOCFSERROR bpreverr; /* error for below/prev col */ + LOCFSERROR bnexterr; /* error for below/next col */ + LOCFSERROR delta; + register FSERRPTR errorptr; /* => fserrors[] at column before current */ + register JSAMPROW input_ptr; + register JSAMPROW output_ptr; + JSAMPROW colorindex_ci; + JSAMPROW colormap_ci; + int pixcode; + int nc = cinfo->out_color_components; + int dir; /* 1 for left-to-right, -1 for right-to-left */ + int dirnc; /* dir * nc */ + int ci; + int row; + JDIMENSION col; + JDIMENSION width = cinfo->output_width; + JSAMPLE *range_limit = cinfo->sample_range_limit; + SHIFT_TEMPS + + for (row = 0; row < num_rows; row++) { + /* Initialize output values to 0 so can process components separately */ + FMEMZERO((void FAR *) output_buf[row], + (size_t) (width * SIZEOF(JSAMPLE))); + for (ci = 0; ci < nc; ci++) { + input_ptr = input_buf[row] + ci; + output_ptr = output_buf[row]; + if (cquantize->on_odd_row) { + /* work right to left in this row */ + input_ptr += (width-1) * nc; /* so point to rightmost pixel */ + output_ptr += width-1; + dir = -1; + dirnc = -nc; + errorptr = cquantize->fserrors[ci] + (width+1); /* => entry after last column */ + } else { + /* work left to right in this row */ + dir = 1; + dirnc = nc; + errorptr = cquantize->fserrors[ci]; /* => entry before first column */ + } + colorindex_ci = cquantize->colorindex[ci]; + colormap_ci = cquantize->sv_colormap[ci]; + /* Preset error values: no error propagated to first pixel from left */ + cur = 0; + /* and no error propagated to row below yet */ + belowerr = bpreverr = 0; + + for (col = width; col > 0; col--) { + /* cur holds the error propagated from the previous pixel on the + * current line. Add the error propagated from the previous line + * to form the complete error correction term for this pixel, and + * round the error term (which is expressed * 16) to an integer. + * RIGHT_SHIFT rounds towards minus infinity, so adding 8 is correct + * for either sign of the error value. + * Note: errorptr points to *previous* column's array entry. + */ + cur = RIGHT_SHIFT(cur + errorptr[dir] + 8, 4); + /* Form pixel value + error, and range-limit to 0..MAXJSAMPLE. + * The maximum error is +- MAXJSAMPLE; this sets the required size + * of the range_limit array. + */ + cur += GETJSAMPLE(*input_ptr); + cur = GETJSAMPLE(range_limit[cur]); + /* Select output value, accumulate into output code for this pixel */ + pixcode = GETJSAMPLE(colorindex_ci[cur]); + *output_ptr += (JSAMPLE) pixcode; + /* Compute actual representation error at this pixel */ + /* Note: we can do this even though we don't have the final */ + /* pixel code, because the colormap is orthogonal. */ + cur -= GETJSAMPLE(colormap_ci[pixcode]); + /* Compute error fractions to be propagated to adjacent pixels. + * Add these into the running sums, and simultaneously shift the + * next-line error sums left by 1 column. + */ + bnexterr = cur; + delta = cur * 2; + cur += delta; /* form error * 3 */ + errorptr[0] = (FSERROR) (bpreverr + cur); + cur += delta; /* form error * 5 */ + bpreverr = belowerr + cur; + belowerr = bnexterr; + cur += delta; /* form error * 7 */ + /* At this point cur contains the 7/16 error value to be propagated + * to the next pixel on the current line, and all the errors for the + * next line have been shifted over. We are therefore ready to move on. + */ + input_ptr += dirnc; /* advance input ptr to next column */ + output_ptr += dir; /* advance output ptr to next column */ + errorptr += dir; /* advance errorptr to current column */ + } + /* Post-loop cleanup: we must unload the final error value into the + * final fserrors[] entry. Note we need not unload belowerr because + * it is for the dummy column before or after the actual array. + */ + errorptr[0] = (FSERROR) bpreverr; /* unload prev err into array */ + } + cquantize->on_odd_row = (cquantize->on_odd_row ? FALSE : TRUE); + } +} + + +/* + * Allocate workspace for Floyd-Steinberg errors. + */ + +LOCAL(void) +alloc_fs_workspace (j_decompress_ptr cinfo) +{ + my_cquantize_ptr cquantize = (my_cquantize_ptr) cinfo->cquantize; + size_t arraysize; + int i; + + arraysize = (size_t) ((cinfo->output_width + 2) * SIZEOF(FSERROR)); + for (i = 0; i < cinfo->out_color_components; i++) { + cquantize->fserrors[i] = (FSERRPTR) + (*cinfo->mem->alloc_large)((j_common_ptr) cinfo, JPOOL_IMAGE, arraysize); + } +} + + +/* + * Initialize for one-pass color quantization. + */ + +METHODDEF(void) +start_pass_1_quant (j_decompress_ptr cinfo, boolean is_pre_scan) +{ + my_cquantize_ptr cquantize = (my_cquantize_ptr) cinfo->cquantize; + size_t arraysize; + int i; + + /* Install my colormap. */ + cinfo->colormap = cquantize->sv_colormap; + cinfo->actual_number_of_colors = cquantize->sv_actual; + + /* Initialize for desired dithering mode. */ + switch (cinfo->dither_mode) { + case JDITHER_NONE: + if (cinfo->out_color_components == 3) + cquantize->pub.color_quantize = color_quantize3; + else + cquantize->pub.color_quantize = color_quantize; + break; + case JDITHER_ORDERED: + if (cinfo->out_color_components == 3) + cquantize->pub.color_quantize = quantize3_ord_dither; + else + cquantize->pub.color_quantize = quantize_ord_dither; + cquantize->row_index = 0; /* initialize state for ordered dither */ + /* If user changed to ordered dither from another mode, + * we must recreate the color index table with padding. + * This will cost extra space, but probably isn't very likely. + */ + if (! cquantize->is_padded) + create_colorindex(cinfo); + /* Create ordered-dither tables if we didn't already. */ + if (cquantize->odither[0] == NULL) + create_odither_tables(cinfo); + break; + case JDITHER_FS: + cquantize->pub.color_quantize = quantize_fs_dither; + cquantize->on_odd_row = FALSE; /* initialize state for F-S dither */ + /* Allocate Floyd-Steinberg workspace if didn't already. */ + if (cquantize->fserrors[0] == NULL) + alloc_fs_workspace(cinfo); + /* Initialize the propagated errors to zero. */ + arraysize = (size_t) ((cinfo->output_width + 2) * SIZEOF(FSERROR)); + for (i = 0; i < cinfo->out_color_components; i++) + FMEMZERO((void FAR *) cquantize->fserrors[i], arraysize); + break; + default: + ERREXIT(cinfo, JERR_NOT_COMPILED); + break; + } +} + + +/* + * Finish up at the end of the pass. + */ + +METHODDEF(void) +finish_pass_1_quant (j_decompress_ptr cinfo) +{ + /* no work in 1-pass case */ +} + + +/* + * Switch to a new external colormap between output passes. + * Shouldn't get to this module! + */ + +METHODDEF(void) +new_color_map_1_quant (j_decompress_ptr cinfo) +{ + ERREXIT(cinfo, JERR_MODE_CHANGE); +} + + +/* + * Module initialization routine for 1-pass color quantization. + */ + +GLOBAL(void) +jinit_1pass_quantizer (j_decompress_ptr cinfo) +{ + my_cquantize_ptr cquantize; + + cquantize = (my_cquantize_ptr) + (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, + SIZEOF(my_cquantizer)); + cinfo->cquantize = (struct jpeg_color_quantizer *) cquantize; + cquantize->pub.start_pass = start_pass_1_quant; + cquantize->pub.finish_pass = finish_pass_1_quant; + cquantize->pub.new_color_map = new_color_map_1_quant; + cquantize->fserrors[0] = NULL; /* Flag FS workspace not allocated */ + cquantize->odither[0] = NULL; /* Also flag odither arrays not allocated */ + + /* Make sure my internal arrays won't overflow */ + if (cinfo->out_color_components > MAX_Q_COMPS) + ERREXIT1(cinfo, JERR_QUANT_COMPONENTS, MAX_Q_COMPS); + /* Make sure colormap indexes can be represented by JSAMPLEs */ + if (cinfo->desired_number_of_colors > (MAXJSAMPLE+1)) + ERREXIT1(cinfo, JERR_QUANT_MANY_COLORS, MAXJSAMPLE+1); + + /* Create the colormap and color index table. */ + create_colormap(cinfo); + create_colorindex(cinfo); + + /* Allocate Floyd-Steinberg workspace now if requested. + * We do this now since it is FAR storage and may affect the memory + * manager's space calculations. If the user changes to FS dither + * mode in a later pass, we will allocate the space then, and will + * possibly overrun the max_memory_to_use setting. + */ + if (cinfo->dither_mode == JDITHER_FS) + alloc_fs_workspace(cinfo); +} + +#endif /* QUANT_1PASS_SUPPORTED */ diff --git a/jpeg/jquant2.c b/jpeg/jquant2.c new file mode 100644 index 0000000..38fc2af --- /dev/null +++ b/jpeg/jquant2.c @@ -0,0 +1,1311 @@ +/* + * jquant2.c + * + * Copyright (C) 1991-1996, Thomas G. Lane. + * Modified 2011 by Guido Vollbeding. + * This file is part of the Independent JPEG Group's software. + * For conditions of distribution and use, see the accompanying README file. + * + * This file contains 2-pass color quantization (color mapping) routines. + * These routines provide selection of a custom color map for an image, + * followed by mapping of the image to that color map, with optional + * Floyd-Steinberg dithering. + * It is also possible to use just the second pass to map to an arbitrary + * externally-given color map. + * + * Note: ordered dithering is not supported, since there isn't any fast + * way to compute intercolor distances; it's unclear that ordered dither's + * fundamental assumptions even hold with an irregularly spaced color map. + */ + +#define JPEG_INTERNALS +#include "jinclude.h" +#include "jpeglib.h" + +#ifdef QUANT_2PASS_SUPPORTED + + +/* + * This module implements the well-known Heckbert paradigm for color + * quantization. Most of the ideas used here can be traced back to + * Heckbert's seminal paper + * Heckbert, Paul. "Color Image Quantization for Frame Buffer Display", + * Proc. SIGGRAPH '82, Computer Graphics v.16 #3 (July 1982), pp 297-304. + * + * In the first pass over the image, we accumulate a histogram showing the + * usage count of each possible color. To keep the histogram to a reasonable + * size, we reduce the precision of the input; typical practice is to retain + * 5 or 6 bits per color, so that 8 or 4 different input values are counted + * in the same histogram cell. + * + * Next, the color-selection step begins with a box representing the whole + * color space, and repeatedly splits the "largest" remaining box until we + * have as many boxes as desired colors. Then the mean color in each + * remaining box becomes one of the possible output colors. + * + * The second pass over the image maps each input pixel to the closest output + * color (optionally after applying a Floyd-Steinberg dithering correction). + * This mapping is logically trivial, but making it go fast enough requires + * considerable care. + * + * Heckbert-style quantizers vary a good deal in their policies for choosing + * the "largest" box and deciding where to cut it. The particular policies + * used here have proved out well in experimental comparisons, but better ones + * may yet be found. + * + * In earlier versions of the IJG code, this module quantized in YCbCr color + * space, processing the raw upsampled data without a color conversion step. + * This allowed the color conversion math to be done only once per colormap + * entry, not once per pixel. However, that optimization precluded other + * useful optimizations (such as merging color conversion with upsampling) + * and it also interfered with desired capabilities such as quantizing to an + * externally-supplied colormap. We have therefore abandoned that approach. + * The present code works in the post-conversion color space, typically RGB. + * + * To improve the visual quality of the results, we actually work in scaled + * RGB space, giving G distances more weight than R, and R in turn more than + * B. To do everything in integer math, we must use integer scale factors. + * The 2/3/1 scale factors used here correspond loosely to the relative + * weights of the colors in the NTSC grayscale equation. + * If you want to use this code to quantize a non-RGB color space, you'll + * probably need to change these scale factors. + */ + +#define R_SCALE 2 /* scale R distances by this much */ +#define G_SCALE 3 /* scale G distances by this much */ +#define B_SCALE 1 /* and B by this much */ + +/* Relabel R/G/B as components 0/1/2, respecting the RGB ordering defined + * in jmorecfg.h. As the code stands, it will do the right thing for R,G,B + * and B,G,R orders. If you define some other weird order in jmorecfg.h, + * you'll get compile errors until you extend this logic. In that case + * you'll probably want to tweak the histogram sizes too. + */ + +#if RGB_RED == 0 +#define C0_SCALE R_SCALE +#endif +#if RGB_BLUE == 0 +#define C0_SCALE B_SCALE +#endif +#if RGB_GREEN == 1 +#define C1_SCALE G_SCALE +#endif +#if RGB_RED == 2 +#define C2_SCALE R_SCALE +#endif +#if RGB_BLUE == 2 +#define C2_SCALE B_SCALE +#endif + + +/* + * First we have the histogram data structure and routines for creating it. + * + * The number of bits of precision can be adjusted by changing these symbols. + * We recommend keeping 6 bits for G and 5 each for R and B. + * If you have plenty of memory and cycles, 6 bits all around gives marginally + * better results; if you are short of memory, 5 bits all around will save + * some space but degrade the results. + * To maintain a fully accurate histogram, we'd need to allocate a "long" + * (preferably unsigned long) for each cell. In practice this is overkill; + * we can get by with 16 bits per cell. Few of the cell counts will overflow, + * and clamping those that do overflow to the maximum value will give close- + * enough results. This reduces the recommended histogram size from 256Kb + * to 128Kb, which is a useful savings on PC-class machines. + * (In the second pass the histogram space is re-used for pixel mapping data; + * in that capacity, each cell must be able to store zero to the number of + * desired colors. 16 bits/cell is plenty for that too.) + * Since the JPEG code is intended to run in small memory model on 80x86 + * machines, we can't just allocate the histogram in one chunk. Instead + * of a true 3-D array, we use a row of pointers to 2-D arrays. Each + * pointer corresponds to a C0 value (typically 2^5 = 32 pointers) and + * each 2-D array has 2^6*2^5 = 2048 or 2^6*2^6 = 4096 entries. Note that + * on 80x86 machines, the pointer row is in near memory but the actual + * arrays are in far memory (same arrangement as we use for image arrays). + */ + +#define MAXNUMCOLORS (MAXJSAMPLE+1) /* maximum size of colormap */ + +/* These will do the right thing for either R,G,B or B,G,R color order, + * but you may not like the results for other color orders. + */ +#define HIST_C0_BITS 5 /* bits of precision in R/B histogram */ +#define HIST_C1_BITS 6 /* bits of precision in G histogram */ +#define HIST_C2_BITS 5 /* bits of precision in B/R histogram */ + +/* Number of elements along histogram axes. */ +#define HIST_C0_ELEMS (1<cquantize; + register JSAMPROW ptr; + register histptr histp; + register hist3d histogram = cquantize->histogram; + int row; + JDIMENSION col; + JDIMENSION width = cinfo->output_width; + + for (row = 0; row < num_rows; row++) { + ptr = input_buf[row]; + for (col = width; col > 0; col--) { + /* get pixel value and index into the histogram */ + histp = & histogram[GETJSAMPLE(ptr[0]) >> C0_SHIFT] + [GETJSAMPLE(ptr[1]) >> C1_SHIFT] + [GETJSAMPLE(ptr[2]) >> C2_SHIFT]; + /* increment, check for overflow and undo increment if so. */ + if (++(*histp) <= 0) + (*histp)--; + ptr += 3; + } + } +} + + +/* + * Next we have the really interesting routines: selection of a colormap + * given the completed histogram. + * These routines work with a list of "boxes", each representing a rectangular + * subset of the input color space (to histogram precision). + */ + +typedef struct { + /* The bounds of the box (inclusive); expressed as histogram indexes */ + int c0min, c0max; + int c1min, c1max; + int c2min, c2max; + /* The volume (actually 2-norm) of the box */ + INT32 volume; + /* The number of nonzero histogram cells within this box */ + long colorcount; +} box; + +typedef box * boxptr; + + +LOCAL(boxptr) +find_biggest_color_pop (boxptr boxlist, int numboxes) +/* Find the splittable box with the largest color population */ +/* Returns NULL if no splittable boxes remain */ +{ + register boxptr boxp; + register int i; + register long maxc = 0; + boxptr which = NULL; + + for (i = 0, boxp = boxlist; i < numboxes; i++, boxp++) { + if (boxp->colorcount > maxc && boxp->volume > 0) { + which = boxp; + maxc = boxp->colorcount; + } + } + return which; +} + + +LOCAL(boxptr) +find_biggest_volume (boxptr boxlist, int numboxes) +/* Find the splittable box with the largest (scaled) volume */ +/* Returns NULL if no splittable boxes remain */ +{ + register boxptr boxp; + register int i; + register INT32 maxv = 0; + boxptr which = NULL; + + for (i = 0, boxp = boxlist; i < numboxes; i++, boxp++) { + if (boxp->volume > maxv) { + which = boxp; + maxv = boxp->volume; + } + } + return which; +} + + +LOCAL(void) +update_box (j_decompress_ptr cinfo, boxptr boxp) +/* Shrink the min/max bounds of a box to enclose only nonzero elements, */ +/* and recompute its volume and population */ +{ + my_cquantize_ptr cquantize = (my_cquantize_ptr) cinfo->cquantize; + hist3d histogram = cquantize->histogram; + histptr histp; + int c0,c1,c2; + int c0min,c0max,c1min,c1max,c2min,c2max; + INT32 dist0,dist1,dist2; + long ccount; + + c0min = boxp->c0min; c0max = boxp->c0max; + c1min = boxp->c1min; c1max = boxp->c1max; + c2min = boxp->c2min; c2max = boxp->c2max; + + if (c0max > c0min) + for (c0 = c0min; c0 <= c0max; c0++) + for (c1 = c1min; c1 <= c1max; c1++) { + histp = & histogram[c0][c1][c2min]; + for (c2 = c2min; c2 <= c2max; c2++) + if (*histp++ != 0) { + boxp->c0min = c0min = c0; + goto have_c0min; + } + } + have_c0min: + if (c0max > c0min) + for (c0 = c0max; c0 >= c0min; c0--) + for (c1 = c1min; c1 <= c1max; c1++) { + histp = & histogram[c0][c1][c2min]; + for (c2 = c2min; c2 <= c2max; c2++) + if (*histp++ != 0) { + boxp->c0max = c0max = c0; + goto have_c0max; + } + } + have_c0max: + if (c1max > c1min) + for (c1 = c1min; c1 <= c1max; c1++) + for (c0 = c0min; c0 <= c0max; c0++) { + histp = & histogram[c0][c1][c2min]; + for (c2 = c2min; c2 <= c2max; c2++) + if (*histp++ != 0) { + boxp->c1min = c1min = c1; + goto have_c1min; + } + } + have_c1min: + if (c1max > c1min) + for (c1 = c1max; c1 >= c1min; c1--) + for (c0 = c0min; c0 <= c0max; c0++) { + histp = & histogram[c0][c1][c2min]; + for (c2 = c2min; c2 <= c2max; c2++) + if (*histp++ != 0) { + boxp->c1max = c1max = c1; + goto have_c1max; + } + } + have_c1max: + if (c2max > c2min) + for (c2 = c2min; c2 <= c2max; c2++) + for (c0 = c0min; c0 <= c0max; c0++) { + histp = & histogram[c0][c1min][c2]; + for (c1 = c1min; c1 <= c1max; c1++, histp += HIST_C2_ELEMS) + if (*histp != 0) { + boxp->c2min = c2min = c2; + goto have_c2min; + } + } + have_c2min: + if (c2max > c2min) + for (c2 = c2max; c2 >= c2min; c2--) + for (c0 = c0min; c0 <= c0max; c0++) { + histp = & histogram[c0][c1min][c2]; + for (c1 = c1min; c1 <= c1max; c1++, histp += HIST_C2_ELEMS) + if (*histp != 0) { + boxp->c2max = c2max = c2; + goto have_c2max; + } + } + have_c2max: + + /* Update box volume. + * We use 2-norm rather than real volume here; this biases the method + * against making long narrow boxes, and it has the side benefit that + * a box is splittable iff norm > 0. + * Since the differences are expressed in histogram-cell units, + * we have to shift back to JSAMPLE units to get consistent distances; + * after which, we scale according to the selected distance scale factors. + */ + dist0 = ((c0max - c0min) << C0_SHIFT) * C0_SCALE; + dist1 = ((c1max - c1min) << C1_SHIFT) * C1_SCALE; + dist2 = ((c2max - c2min) << C2_SHIFT) * C2_SCALE; + boxp->volume = dist0*dist0 + dist1*dist1 + dist2*dist2; + + /* Now scan remaining volume of box and compute population */ + ccount = 0; + for (c0 = c0min; c0 <= c0max; c0++) + for (c1 = c1min; c1 <= c1max; c1++) { + histp = & histogram[c0][c1][c2min]; + for (c2 = c2min; c2 <= c2max; c2++, histp++) + if (*histp != 0) { + ccount++; + } + } + boxp->colorcount = ccount; +} + + +LOCAL(int) +median_cut (j_decompress_ptr cinfo, boxptr boxlist, int numboxes, + int desired_colors) +/* Repeatedly select and split the largest box until we have enough boxes */ +{ + int n,lb; + int c0,c1,c2,cmax; + register boxptr b1,b2; + + while (numboxes < desired_colors) { + /* Select box to split. + * Current algorithm: by population for first half, then by volume. + */ + if (numboxes*2 <= desired_colors) { + b1 = find_biggest_color_pop(boxlist, numboxes); + } else { + b1 = find_biggest_volume(boxlist, numboxes); + } + if (b1 == NULL) /* no splittable boxes left! */ + break; + b2 = &boxlist[numboxes]; /* where new box will go */ + /* Copy the color bounds to the new box. */ + b2->c0max = b1->c0max; b2->c1max = b1->c1max; b2->c2max = b1->c2max; + b2->c0min = b1->c0min; b2->c1min = b1->c1min; b2->c2min = b1->c2min; + /* Choose which axis to split the box on. + * Current algorithm: longest scaled axis. + * See notes in update_box about scaling distances. + */ + c0 = ((b1->c0max - b1->c0min) << C0_SHIFT) * C0_SCALE; + c1 = ((b1->c1max - b1->c1min) << C1_SHIFT) * C1_SCALE; + c2 = ((b1->c2max - b1->c2min) << C2_SHIFT) * C2_SCALE; + /* We want to break any ties in favor of green, then red, blue last. + * This code does the right thing for R,G,B or B,G,R color orders only. + */ +#if RGB_RED == 0 + cmax = c1; n = 1; + if (c0 > cmax) { cmax = c0; n = 0; } + if (c2 > cmax) { n = 2; } +#else + cmax = c1; n = 1; + if (c2 > cmax) { cmax = c2; n = 2; } + if (c0 > cmax) { n = 0; } +#endif + /* Choose split point along selected axis, and update box bounds. + * Current algorithm: split at halfway point. + * (Since the box has been shrunk to minimum volume, + * any split will produce two nonempty subboxes.) + * Note that lb value is max for lower box, so must be < old max. + */ + switch (n) { + case 0: + lb = (b1->c0max + b1->c0min) / 2; + b1->c0max = lb; + b2->c0min = lb+1; + break; + case 1: + lb = (b1->c1max + b1->c1min) / 2; + b1->c1max = lb; + b2->c1min = lb+1; + break; + case 2: + lb = (b1->c2max + b1->c2min) / 2; + b1->c2max = lb; + b2->c2min = lb+1; + break; + } + /* Update stats for boxes */ + update_box(cinfo, b1); + update_box(cinfo, b2); + numboxes++; + } + return numboxes; +} + + +LOCAL(void) +compute_color (j_decompress_ptr cinfo, boxptr boxp, int icolor) +/* Compute representative color for a box, put it in colormap[icolor] */ +{ + /* Current algorithm: mean weighted by pixels (not colors) */ + /* Note it is important to get the rounding correct! */ + my_cquantize_ptr cquantize = (my_cquantize_ptr) cinfo->cquantize; + hist3d histogram = cquantize->histogram; + histptr histp; + int c0,c1,c2; + int c0min,c0max,c1min,c1max,c2min,c2max; + long count; + long total = 0; + long c0total = 0; + long c1total = 0; + long c2total = 0; + + c0min = boxp->c0min; c0max = boxp->c0max; + c1min = boxp->c1min; c1max = boxp->c1max; + c2min = boxp->c2min; c2max = boxp->c2max; + + for (c0 = c0min; c0 <= c0max; c0++) + for (c1 = c1min; c1 <= c1max; c1++) { + histp = & histogram[c0][c1][c2min]; + for (c2 = c2min; c2 <= c2max; c2++) { + if ((count = *histp++) != 0) { + total += count; + c0total += ((c0 << C0_SHIFT) + ((1<>1)) * count; + c1total += ((c1 << C1_SHIFT) + ((1<>1)) * count; + c2total += ((c2 << C2_SHIFT) + ((1<>1)) * count; + } + } + } + + cinfo->colormap[0][icolor] = (JSAMPLE) ((c0total + (total>>1)) / total); + cinfo->colormap[1][icolor] = (JSAMPLE) ((c1total + (total>>1)) / total); + cinfo->colormap[2][icolor] = (JSAMPLE) ((c2total + (total>>1)) / total); +} + + +LOCAL(void) +select_colors (j_decompress_ptr cinfo, int desired_colors) +/* Master routine for color selection */ +{ + boxptr boxlist; + int numboxes; + int i; + + /* Allocate workspace for box list */ + boxlist = (boxptr) (*cinfo->mem->alloc_small) + ((j_common_ptr) cinfo, JPOOL_IMAGE, desired_colors * SIZEOF(box)); + /* Initialize one box containing whole space */ + numboxes = 1; + boxlist[0].c0min = 0; + boxlist[0].c0max = MAXJSAMPLE >> C0_SHIFT; + boxlist[0].c1min = 0; + boxlist[0].c1max = MAXJSAMPLE >> C1_SHIFT; + boxlist[0].c2min = 0; + boxlist[0].c2max = MAXJSAMPLE >> C2_SHIFT; + /* Shrink it to actually-used volume and set its statistics */ + update_box(cinfo, & boxlist[0]); + /* Perform median-cut to produce final box list */ + numboxes = median_cut(cinfo, boxlist, numboxes, desired_colors); + /* Compute the representative color for each box, fill colormap */ + for (i = 0; i < numboxes; i++) + compute_color(cinfo, & boxlist[i], i); + cinfo->actual_number_of_colors = numboxes; + TRACEMS1(cinfo, 1, JTRC_QUANT_SELECTED, numboxes); +} + + +/* + * These routines are concerned with the time-critical task of mapping input + * colors to the nearest color in the selected colormap. + * + * We re-use the histogram space as an "inverse color map", essentially a + * cache for the results of nearest-color searches. All colors within a + * histogram cell will be mapped to the same colormap entry, namely the one + * closest to the cell's center. This may not be quite the closest entry to + * the actual input color, but it's almost as good. A zero in the cache + * indicates we haven't found the nearest color for that cell yet; the array + * is cleared to zeroes before starting the mapping pass. When we find the + * nearest color for a cell, its colormap index plus one is recorded in the + * cache for future use. The pass2 scanning routines call fill_inverse_cmap + * when they need to use an unfilled entry in the cache. + * + * Our method of efficiently finding nearest colors is based on the "locally + * sorted search" idea described by Heckbert and on the incremental distance + * calculation described by Spencer W. Thomas in chapter III.1 of Graphics + * Gems II (James Arvo, ed. Academic Press, 1991). Thomas points out that + * the distances from a given colormap entry to each cell of the histogram can + * be computed quickly using an incremental method: the differences between + * distances to adjacent cells themselves differ by a constant. This allows a + * fairly fast implementation of the "brute force" approach of computing the + * distance from every colormap entry to every histogram cell. Unfortunately, + * it needs a work array to hold the best-distance-so-far for each histogram + * cell (because the inner loop has to be over cells, not colormap entries). + * The work array elements have to be INT32s, so the work array would need + * 256Kb at our recommended precision. This is not feasible in DOS machines. + * + * To get around these problems, we apply Thomas' method to compute the + * nearest colors for only the cells within a small subbox of the histogram. + * The work array need be only as big as the subbox, so the memory usage + * problem is solved. Furthermore, we need not fill subboxes that are never + * referenced in pass2; many images use only part of the color gamut, so a + * fair amount of work is saved. An additional advantage of this + * approach is that we can apply Heckbert's locality criterion to quickly + * eliminate colormap entries that are far away from the subbox; typically + * three-fourths of the colormap entries are rejected by Heckbert's criterion, + * and we need not compute their distances to individual cells in the subbox. + * The speed of this approach is heavily influenced by the subbox size: too + * small means too much overhead, too big loses because Heckbert's criterion + * can't eliminate as many colormap entries. Empirically the best subbox + * size seems to be about 1/512th of the histogram (1/8th in each direction). + * + * Thomas' article also describes a refined method which is asymptotically + * faster than the brute-force method, but it is also far more complex and + * cannot efficiently be applied to small subboxes. It is therefore not + * useful for programs intended to be portable to DOS machines. On machines + * with plenty of memory, filling the whole histogram in one shot with Thomas' + * refined method might be faster than the present code --- but then again, + * it might not be any faster, and it's certainly more complicated. + */ + + +/* log2(histogram cells in update box) for each axis; this can be adjusted */ +#define BOX_C0_LOG (HIST_C0_BITS-3) +#define BOX_C1_LOG (HIST_C1_BITS-3) +#define BOX_C2_LOG (HIST_C2_BITS-3) + +#define BOX_C0_ELEMS (1<actual_number_of_colors; + int maxc0, maxc1, maxc2; + int centerc0, centerc1, centerc2; + int i, x, ncolors; + INT32 minmaxdist, min_dist, max_dist, tdist; + INT32 mindist[MAXNUMCOLORS]; /* min distance to colormap entry i */ + + /* Compute true coordinates of update box's upper corner and center. + * Actually we compute the coordinates of the center of the upper-corner + * histogram cell, which are the upper bounds of the volume we care about. + * Note that since ">>" rounds down, the "center" values may be closer to + * min than to max; hence comparisons to them must be "<=", not "<". + */ + maxc0 = minc0 + ((1 << BOX_C0_SHIFT) - (1 << C0_SHIFT)); + centerc0 = (minc0 + maxc0) >> 1; + maxc1 = minc1 + ((1 << BOX_C1_SHIFT) - (1 << C1_SHIFT)); + centerc1 = (minc1 + maxc1) >> 1; + maxc2 = minc2 + ((1 << BOX_C2_SHIFT) - (1 << C2_SHIFT)); + centerc2 = (minc2 + maxc2) >> 1; + + /* For each color in colormap, find: + * 1. its minimum squared-distance to any point in the update box + * (zero if color is within update box); + * 2. its maximum squared-distance to any point in the update box. + * Both of these can be found by considering only the corners of the box. + * We save the minimum distance for each color in mindist[]; + * only the smallest maximum distance is of interest. + */ + minmaxdist = 0x7FFFFFFFL; + + for (i = 0; i < numcolors; i++) { + /* We compute the squared-c0-distance term, then add in the other two. */ + x = GETJSAMPLE(cinfo->colormap[0][i]); + if (x < minc0) { + tdist = (x - minc0) * C0_SCALE; + min_dist = tdist*tdist; + tdist = (x - maxc0) * C0_SCALE; + max_dist = tdist*tdist; + } else if (x > maxc0) { + tdist = (x - maxc0) * C0_SCALE; + min_dist = tdist*tdist; + tdist = (x - minc0) * C0_SCALE; + max_dist = tdist*tdist; + } else { + /* within cell range so no contribution to min_dist */ + min_dist = 0; + if (x <= centerc0) { + tdist = (x - maxc0) * C0_SCALE; + max_dist = tdist*tdist; + } else { + tdist = (x - minc0) * C0_SCALE; + max_dist = tdist*tdist; + } + } + + x = GETJSAMPLE(cinfo->colormap[1][i]); + if (x < minc1) { + tdist = (x - minc1) * C1_SCALE; + min_dist += tdist*tdist; + tdist = (x - maxc1) * C1_SCALE; + max_dist += tdist*tdist; + } else if (x > maxc1) { + tdist = (x - maxc1) * C1_SCALE; + min_dist += tdist*tdist; + tdist = (x - minc1) * C1_SCALE; + max_dist += tdist*tdist; + } else { + /* within cell range so no contribution to min_dist */ + if (x <= centerc1) { + tdist = (x - maxc1) * C1_SCALE; + max_dist += tdist*tdist; + } else { + tdist = (x - minc1) * C1_SCALE; + max_dist += tdist*tdist; + } + } + + x = GETJSAMPLE(cinfo->colormap[2][i]); + if (x < minc2) { + tdist = (x - minc2) * C2_SCALE; + min_dist += tdist*tdist; + tdist = (x - maxc2) * C2_SCALE; + max_dist += tdist*tdist; + } else if (x > maxc2) { + tdist = (x - maxc2) * C2_SCALE; + min_dist += tdist*tdist; + tdist = (x - minc2) * C2_SCALE; + max_dist += tdist*tdist; + } else { + /* within cell range so no contribution to min_dist */ + if (x <= centerc2) { + tdist = (x - maxc2) * C2_SCALE; + max_dist += tdist*tdist; + } else { + tdist = (x - minc2) * C2_SCALE; + max_dist += tdist*tdist; + } + } + + mindist[i] = min_dist; /* save away the results */ + if (max_dist < minmaxdist) + minmaxdist = max_dist; + } + + /* Now we know that no cell in the update box is more than minmaxdist + * away from some colormap entry. Therefore, only colors that are + * within minmaxdist of some part of the box need be considered. + */ + ncolors = 0; + for (i = 0; i < numcolors; i++) { + if (mindist[i] <= minmaxdist) + colorlist[ncolors++] = (JSAMPLE) i; + } + return ncolors; +} + + +LOCAL(void) +find_best_colors (j_decompress_ptr cinfo, int minc0, int minc1, int minc2, + int numcolors, JSAMPLE colorlist[], JSAMPLE bestcolor[]) +/* Find the closest colormap entry for each cell in the update box, + * given the list of candidate colors prepared by find_nearby_colors. + * Return the indexes of the closest entries in the bestcolor[] array. + * This routine uses Thomas' incremental distance calculation method to + * find the distance from a colormap entry to successive cells in the box. + */ +{ + int ic0, ic1, ic2; + int i, icolor; + register INT32 * bptr; /* pointer into bestdist[] array */ + JSAMPLE * cptr; /* pointer into bestcolor[] array */ + INT32 dist0, dist1; /* initial distance values */ + register INT32 dist2; /* current distance in inner loop */ + INT32 xx0, xx1; /* distance increments */ + register INT32 xx2; + INT32 inc0, inc1, inc2; /* initial values for increments */ + /* This array holds the distance to the nearest-so-far color for each cell */ + INT32 bestdist[BOX_C0_ELEMS * BOX_C1_ELEMS * BOX_C2_ELEMS]; + + /* Initialize best-distance for each cell of the update box */ + bptr = bestdist; + for (i = BOX_C0_ELEMS*BOX_C1_ELEMS*BOX_C2_ELEMS-1; i >= 0; i--) + *bptr++ = 0x7FFFFFFFL; + + /* For each color selected by find_nearby_colors, + * compute its distance to the center of each cell in the box. + * If that's less than best-so-far, update best distance and color number. + */ + + /* Nominal steps between cell centers ("x" in Thomas article) */ +#define STEP_C0 ((1 << C0_SHIFT) * C0_SCALE) +#define STEP_C1 ((1 << C1_SHIFT) * C1_SCALE) +#define STEP_C2 ((1 << C2_SHIFT) * C2_SCALE) + + for (i = 0; i < numcolors; i++) { + icolor = GETJSAMPLE(colorlist[i]); + /* Compute (square of) distance from minc0/c1/c2 to this color */ + inc0 = (minc0 - GETJSAMPLE(cinfo->colormap[0][icolor])) * C0_SCALE; + dist0 = inc0*inc0; + inc1 = (minc1 - GETJSAMPLE(cinfo->colormap[1][icolor])) * C1_SCALE; + dist0 += inc1*inc1; + inc2 = (minc2 - GETJSAMPLE(cinfo->colormap[2][icolor])) * C2_SCALE; + dist0 += inc2*inc2; + /* Form the initial difference increments */ + inc0 = inc0 * (2 * STEP_C0) + STEP_C0 * STEP_C0; + inc1 = inc1 * (2 * STEP_C1) + STEP_C1 * STEP_C1; + inc2 = inc2 * (2 * STEP_C2) + STEP_C2 * STEP_C2; + /* Now loop over all cells in box, updating distance per Thomas method */ + bptr = bestdist; + cptr = bestcolor; + xx0 = inc0; + for (ic0 = BOX_C0_ELEMS-1; ic0 >= 0; ic0--) { + dist1 = dist0; + xx1 = inc1; + for (ic1 = BOX_C1_ELEMS-1; ic1 >= 0; ic1--) { + dist2 = dist1; + xx2 = inc2; + for (ic2 = BOX_C2_ELEMS-1; ic2 >= 0; ic2--) { + if (dist2 < *bptr) { + *bptr = dist2; + *cptr = (JSAMPLE) icolor; + } + dist2 += xx2; + xx2 += 2 * STEP_C2 * STEP_C2; + bptr++; + cptr++; + } + dist1 += xx1; + xx1 += 2 * STEP_C1 * STEP_C1; + } + dist0 += xx0; + xx0 += 2 * STEP_C0 * STEP_C0; + } + } +} + + +LOCAL(void) +fill_inverse_cmap (j_decompress_ptr cinfo, int c0, int c1, int c2) +/* Fill the inverse-colormap entries in the update box that contains */ +/* histogram cell c0/c1/c2. (Only that one cell MUST be filled, but */ +/* we can fill as many others as we wish.) */ +{ + my_cquantize_ptr cquantize = (my_cquantize_ptr) cinfo->cquantize; + hist3d histogram = cquantize->histogram; + int minc0, minc1, minc2; /* lower left corner of update box */ + int ic0, ic1, ic2; + register JSAMPLE * cptr; /* pointer into bestcolor[] array */ + register histptr cachep; /* pointer into main cache array */ + /* This array lists the candidate colormap indexes. */ + JSAMPLE colorlist[MAXNUMCOLORS]; + int numcolors; /* number of candidate colors */ + /* This array holds the actually closest colormap index for each cell. */ + JSAMPLE bestcolor[BOX_C0_ELEMS * BOX_C1_ELEMS * BOX_C2_ELEMS]; + + /* Convert cell coordinates to update box ID */ + c0 >>= BOX_C0_LOG; + c1 >>= BOX_C1_LOG; + c2 >>= BOX_C2_LOG; + + /* Compute true coordinates of update box's origin corner. + * Actually we compute the coordinates of the center of the corner + * histogram cell, which are the lower bounds of the volume we care about. + */ + minc0 = (c0 << BOX_C0_SHIFT) + ((1 << C0_SHIFT) >> 1); + minc1 = (c1 << BOX_C1_SHIFT) + ((1 << C1_SHIFT) >> 1); + minc2 = (c2 << BOX_C2_SHIFT) + ((1 << C2_SHIFT) >> 1); + + /* Determine which colormap entries are close enough to be candidates + * for the nearest entry to some cell in the update box. + */ + numcolors = find_nearby_colors(cinfo, minc0, minc1, minc2, colorlist); + + /* Determine the actually nearest colors. */ + find_best_colors(cinfo, minc0, minc1, minc2, numcolors, colorlist, + bestcolor); + + /* Save the best color numbers (plus 1) in the main cache array */ + c0 <<= BOX_C0_LOG; /* convert ID back to base cell indexes */ + c1 <<= BOX_C1_LOG; + c2 <<= BOX_C2_LOG; + cptr = bestcolor; + for (ic0 = 0; ic0 < BOX_C0_ELEMS; ic0++) { + for (ic1 = 0; ic1 < BOX_C1_ELEMS; ic1++) { + cachep = & histogram[c0+ic0][c1+ic1][c2]; + for (ic2 = 0; ic2 < BOX_C2_ELEMS; ic2++) { + *cachep++ = (histcell) (GETJSAMPLE(*cptr++) + 1); + } + } + } +} + + +/* + * Map some rows of pixels to the output colormapped representation. + */ + +METHODDEF(void) +pass2_no_dither (j_decompress_ptr cinfo, + JSAMPARRAY input_buf, JSAMPARRAY output_buf, int num_rows) +/* This version performs no dithering */ +{ + my_cquantize_ptr cquantize = (my_cquantize_ptr) cinfo->cquantize; + hist3d histogram = cquantize->histogram; + register JSAMPROW inptr, outptr; + register histptr cachep; + register int c0, c1, c2; + int row; + JDIMENSION col; + JDIMENSION width = cinfo->output_width; + + for (row = 0; row < num_rows; row++) { + inptr = input_buf[row]; + outptr = output_buf[row]; + for (col = width; col > 0; col--) { + /* get pixel value and index into the cache */ + c0 = GETJSAMPLE(*inptr++) >> C0_SHIFT; + c1 = GETJSAMPLE(*inptr++) >> C1_SHIFT; + c2 = GETJSAMPLE(*inptr++) >> C2_SHIFT; + cachep = & histogram[c0][c1][c2]; + /* If we have not seen this color before, find nearest colormap entry */ + /* and update the cache */ + if (*cachep == 0) + fill_inverse_cmap(cinfo, c0,c1,c2); + /* Now emit the colormap index for this cell */ + *outptr++ = (JSAMPLE) (*cachep - 1); + } + } +} + + +METHODDEF(void) +pass2_fs_dither (j_decompress_ptr cinfo, + JSAMPARRAY input_buf, JSAMPARRAY output_buf, int num_rows) +/* This version performs Floyd-Steinberg dithering */ +{ + my_cquantize_ptr cquantize = (my_cquantize_ptr) cinfo->cquantize; + hist3d histogram = cquantize->histogram; + register LOCFSERROR cur0, cur1, cur2; /* current error or pixel value */ + LOCFSERROR belowerr0, belowerr1, belowerr2; /* error for pixel below cur */ + LOCFSERROR bpreverr0, bpreverr1, bpreverr2; /* error for below/prev col */ + register FSERRPTR errorptr; /* => fserrors[] at column before current */ + JSAMPROW inptr; /* => current input pixel */ + JSAMPROW outptr; /* => current output pixel */ + histptr cachep; + int dir; /* +1 or -1 depending on direction */ + int dir3; /* 3*dir, for advancing inptr & errorptr */ + int row; + JDIMENSION col; + JDIMENSION width = cinfo->output_width; + JSAMPLE *range_limit = cinfo->sample_range_limit; + int *error_limit = cquantize->error_limiter; + JSAMPROW colormap0 = cinfo->colormap[0]; + JSAMPROW colormap1 = cinfo->colormap[1]; + JSAMPROW colormap2 = cinfo->colormap[2]; + SHIFT_TEMPS + + for (row = 0; row < num_rows; row++) { + inptr = input_buf[row]; + outptr = output_buf[row]; + if (cquantize->on_odd_row) { + /* work right to left in this row */ + inptr += (width-1) * 3; /* so point to rightmost pixel */ + outptr += width-1; + dir = -1; + dir3 = -3; + errorptr = cquantize->fserrors + (width+1)*3; /* => entry after last column */ + cquantize->on_odd_row = FALSE; /* flip for next time */ + } else { + /* work left to right in this row */ + dir = 1; + dir3 = 3; + errorptr = cquantize->fserrors; /* => entry before first real column */ + cquantize->on_odd_row = TRUE; /* flip for next time */ + } + /* Preset error values: no error propagated to first pixel from left */ + cur0 = cur1 = cur2 = 0; + /* and no error propagated to row below yet */ + belowerr0 = belowerr1 = belowerr2 = 0; + bpreverr0 = bpreverr1 = bpreverr2 = 0; + + for (col = width; col > 0; col--) { + /* curN holds the error propagated from the previous pixel on the + * current line. Add the error propagated from the previous line + * to form the complete error correction term for this pixel, and + * round the error term (which is expressed * 16) to an integer. + * RIGHT_SHIFT rounds towards minus infinity, so adding 8 is correct + * for either sign of the error value. + * Note: errorptr points to *previous* column's array entry. + */ + cur0 = RIGHT_SHIFT(cur0 + errorptr[dir3+0] + 8, 4); + cur1 = RIGHT_SHIFT(cur1 + errorptr[dir3+1] + 8, 4); + cur2 = RIGHT_SHIFT(cur2 + errorptr[dir3+2] + 8, 4); + /* Limit the error using transfer function set by init_error_limit. + * See comments with init_error_limit for rationale. + */ + cur0 = error_limit[cur0]; + cur1 = error_limit[cur1]; + cur2 = error_limit[cur2]; + /* Form pixel value + error, and range-limit to 0..MAXJSAMPLE. + * The maximum error is +- MAXJSAMPLE (or less with error limiting); + * this sets the required size of the range_limit array. + */ + cur0 += GETJSAMPLE(inptr[0]); + cur1 += GETJSAMPLE(inptr[1]); + cur2 += GETJSAMPLE(inptr[2]); + cur0 = GETJSAMPLE(range_limit[cur0]); + cur1 = GETJSAMPLE(range_limit[cur1]); + cur2 = GETJSAMPLE(range_limit[cur2]); + /* Index into the cache with adjusted pixel value */ + cachep = & histogram[cur0>>C0_SHIFT][cur1>>C1_SHIFT][cur2>>C2_SHIFT]; + /* If we have not seen this color before, find nearest colormap */ + /* entry and update the cache */ + if (*cachep == 0) + fill_inverse_cmap(cinfo, cur0>>C0_SHIFT,cur1>>C1_SHIFT,cur2>>C2_SHIFT); + /* Now emit the colormap index for this cell */ + { register int pixcode = *cachep - 1; + *outptr = (JSAMPLE) pixcode; + /* Compute representation error for this pixel */ + cur0 -= GETJSAMPLE(colormap0[pixcode]); + cur1 -= GETJSAMPLE(colormap1[pixcode]); + cur2 -= GETJSAMPLE(colormap2[pixcode]); + } + /* Compute error fractions to be propagated to adjacent pixels. + * Add these into the running sums, and simultaneously shift the + * next-line error sums left by 1 column. + */ + { register LOCFSERROR bnexterr, delta; + + bnexterr = cur0; /* Process component 0 */ + delta = cur0 * 2; + cur0 += delta; /* form error * 3 */ + errorptr[0] = (FSERROR) (bpreverr0 + cur0); + cur0 += delta; /* form error * 5 */ + bpreverr0 = belowerr0 + cur0; + belowerr0 = bnexterr; + cur0 += delta; /* form error * 7 */ + bnexterr = cur1; /* Process component 1 */ + delta = cur1 * 2; + cur1 += delta; /* form error * 3 */ + errorptr[1] = (FSERROR) (bpreverr1 + cur1); + cur1 += delta; /* form error * 5 */ + bpreverr1 = belowerr1 + cur1; + belowerr1 = bnexterr; + cur1 += delta; /* form error * 7 */ + bnexterr = cur2; /* Process component 2 */ + delta = cur2 * 2; + cur2 += delta; /* form error * 3 */ + errorptr[2] = (FSERROR) (bpreverr2 + cur2); + cur2 += delta; /* form error * 5 */ + bpreverr2 = belowerr2 + cur2; + belowerr2 = bnexterr; + cur2 += delta; /* form error * 7 */ + } + /* At this point curN contains the 7/16 error value to be propagated + * to the next pixel on the current line, and all the errors for the + * next line have been shifted over. We are therefore ready to move on. + */ + inptr += dir3; /* Advance pixel pointers to next column */ + outptr += dir; + errorptr += dir3; /* advance errorptr to current column */ + } + /* Post-loop cleanup: we must unload the final error values into the + * final fserrors[] entry. Note we need not unload belowerrN because + * it is for the dummy column before or after the actual array. + */ + errorptr[0] = (FSERROR) bpreverr0; /* unload prev errs into array */ + errorptr[1] = (FSERROR) bpreverr1; + errorptr[2] = (FSERROR) bpreverr2; + } +} + + +/* + * Initialize the error-limiting transfer function (lookup table). + * The raw F-S error computation can potentially compute error values of up to + * +- MAXJSAMPLE. But we want the maximum correction applied to a pixel to be + * much less, otherwise obviously wrong pixels will be created. (Typical + * effects include weird fringes at color-area boundaries, isolated bright + * pixels in a dark area, etc.) The standard advice for avoiding this problem + * is to ensure that the "corners" of the color cube are allocated as output + * colors; then repeated errors in the same direction cannot cause cascading + * error buildup. However, that only prevents the error from getting + * completely out of hand; Aaron Giles reports that error limiting improves + * the results even with corner colors allocated. + * A simple clamping of the error values to about +- MAXJSAMPLE/8 works pretty + * well, but the smoother transfer function used below is even better. Thanks + * to Aaron Giles for this idea. + */ + +LOCAL(void) +init_error_limit (j_decompress_ptr cinfo) +/* Allocate and fill in the error_limiter table */ +{ + my_cquantize_ptr cquantize = (my_cquantize_ptr) cinfo->cquantize; + int * table; + int in, out; + + table = (int *) (*cinfo->mem->alloc_small) + ((j_common_ptr) cinfo, JPOOL_IMAGE, (MAXJSAMPLE*2+1) * SIZEOF(int)); + table += MAXJSAMPLE; /* so can index -MAXJSAMPLE .. +MAXJSAMPLE */ + cquantize->error_limiter = table; + +#define STEPSIZE ((MAXJSAMPLE+1)/16) + /* Map errors 1:1 up to +- MAXJSAMPLE/16 */ + out = 0; + for (in = 0; in < STEPSIZE; in++, out++) { + table[in] = out; table[-in] = -out; + } + /* Map errors 1:2 up to +- 3*MAXJSAMPLE/16 */ + for (; in < STEPSIZE*3; in++, out += (in&1) ? 0 : 1) { + table[in] = out; table[-in] = -out; + } + /* Clamp the rest to final out value (which is (MAXJSAMPLE+1)/8) */ + for (; in <= MAXJSAMPLE; in++) { + table[in] = out; table[-in] = -out; + } +#undef STEPSIZE +} + + +/* + * Finish up at the end of each pass. + */ + +METHODDEF(void) +finish_pass1 (j_decompress_ptr cinfo) +{ + my_cquantize_ptr cquantize = (my_cquantize_ptr) cinfo->cquantize; + + /* Select the representative colors and fill in cinfo->colormap */ + cinfo->colormap = cquantize->sv_colormap; + select_colors(cinfo, cquantize->desired); + /* Force next pass to zero the color index table */ + cquantize->needs_zeroed = TRUE; +} + + +METHODDEF(void) +finish_pass2 (j_decompress_ptr cinfo) +{ + /* no work */ +} + + +/* + * Initialize for each processing pass. + */ + +METHODDEF(void) +start_pass_2_quant (j_decompress_ptr cinfo, boolean is_pre_scan) +{ + my_cquantize_ptr cquantize = (my_cquantize_ptr) cinfo->cquantize; + hist3d histogram = cquantize->histogram; + int i; + + /* Only F-S dithering or no dithering is supported. */ + /* If user asks for ordered dither, give him F-S. */ + if (cinfo->dither_mode != JDITHER_NONE) + cinfo->dither_mode = JDITHER_FS; + + if (is_pre_scan) { + /* Set up method pointers */ + cquantize->pub.color_quantize = prescan_quantize; + cquantize->pub.finish_pass = finish_pass1; + cquantize->needs_zeroed = TRUE; /* Always zero histogram */ + } else { + /* Set up method pointers */ + if (cinfo->dither_mode == JDITHER_FS) + cquantize->pub.color_quantize = pass2_fs_dither; + else + cquantize->pub.color_quantize = pass2_no_dither; + cquantize->pub.finish_pass = finish_pass2; + + /* Make sure color count is acceptable */ + i = cinfo->actual_number_of_colors; + if (i < 1) + ERREXIT1(cinfo, JERR_QUANT_FEW_COLORS, 1); + if (i > MAXNUMCOLORS) + ERREXIT1(cinfo, JERR_QUANT_MANY_COLORS, MAXNUMCOLORS); + + if (cinfo->dither_mode == JDITHER_FS) { + size_t arraysize = (size_t) ((cinfo->output_width + 2) * + (3 * SIZEOF(FSERROR))); + /* Allocate Floyd-Steinberg workspace if we didn't already. */ + if (cquantize->fserrors == NULL) + cquantize->fserrors = (FSERRPTR) (*cinfo->mem->alloc_large) + ((j_common_ptr) cinfo, JPOOL_IMAGE, arraysize); + /* Initialize the propagated errors to zero. */ + FMEMZERO((void FAR *) cquantize->fserrors, arraysize); + /* Make the error-limit table if we didn't already. */ + if (cquantize->error_limiter == NULL) + init_error_limit(cinfo); + cquantize->on_odd_row = FALSE; + } + + } + /* Zero the histogram or inverse color map, if necessary */ + if (cquantize->needs_zeroed) { + for (i = 0; i < HIST_C0_ELEMS; i++) { + FMEMZERO((void FAR *) histogram[i], + HIST_C1_ELEMS*HIST_C2_ELEMS * SIZEOF(histcell)); + } + cquantize->needs_zeroed = FALSE; + } +} + + +/* + * Switch to a new external colormap between output passes. + */ + +METHODDEF(void) +new_color_map_2_quant (j_decompress_ptr cinfo) +{ + my_cquantize_ptr cquantize = (my_cquantize_ptr) cinfo->cquantize; + + /* Reset the inverse color map */ + cquantize->needs_zeroed = TRUE; +} + + +/* + * Module initialization routine for 2-pass color quantization. + */ + +GLOBAL(void) +jinit_2pass_quantizer (j_decompress_ptr cinfo) +{ + my_cquantize_ptr cquantize; + int i; + + cquantize = (my_cquantize_ptr) + (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, + SIZEOF(my_cquantizer)); + cinfo->cquantize = (struct jpeg_color_quantizer *) cquantize; + cquantize->pub.start_pass = start_pass_2_quant; + cquantize->pub.new_color_map = new_color_map_2_quant; + cquantize->fserrors = NULL; /* flag optional arrays not allocated */ + cquantize->error_limiter = NULL; + + /* Make sure jdmaster didn't give me a case I can't handle */ + if (cinfo->out_color_components != 3) + ERREXIT(cinfo, JERR_NOTIMPL); + + /* Allocate the histogram/inverse colormap storage */ + cquantize->histogram = (hist3d) (*cinfo->mem->alloc_small) + ((j_common_ptr) cinfo, JPOOL_IMAGE, HIST_C0_ELEMS * SIZEOF(hist2d)); + for (i = 0; i < HIST_C0_ELEMS; i++) { + cquantize->histogram[i] = (hist2d) (*cinfo->mem->alloc_large) + ((j_common_ptr) cinfo, JPOOL_IMAGE, + HIST_C1_ELEMS*HIST_C2_ELEMS * SIZEOF(histcell)); + } + cquantize->needs_zeroed = TRUE; /* histogram is garbage now */ + + /* Allocate storage for the completed colormap, if required. + * We do this now since it is FAR storage and may affect + * the memory manager's space calculations. + */ + if (cinfo->enable_2pass_quant) { + /* Make sure color count is acceptable */ + int desired = cinfo->desired_number_of_colors; + /* Lower bound on # of colors ... somewhat arbitrary as long as > 0 */ + if (desired < 8) + ERREXIT1(cinfo, JERR_QUANT_FEW_COLORS, 8); + /* Make sure colormap indexes can be represented by JSAMPLEs */ + if (desired > MAXNUMCOLORS) + ERREXIT1(cinfo, JERR_QUANT_MANY_COLORS, MAXNUMCOLORS); + cquantize->sv_colormap = (*cinfo->mem->alloc_sarray) + ((j_common_ptr) cinfo,JPOOL_IMAGE, (JDIMENSION) desired, (JDIMENSION) 3); + cquantize->desired = desired; + } else + cquantize->sv_colormap = NULL; + + /* Only F-S dithering or no dithering is supported. */ + /* If user asks for ordered dither, give him F-S. */ + if (cinfo->dither_mode != JDITHER_NONE) + cinfo->dither_mode = JDITHER_FS; + + /* Allocate Floyd-Steinberg workspace if necessary. + * This isn't really needed until pass 2, but again it is FAR storage. + * Although we will cope with a later change in dither_mode, + * we do not promise to honor max_memory_to_use if dither_mode changes. + */ + if (cinfo->dither_mode == JDITHER_FS) { + cquantize->fserrors = (FSERRPTR) (*cinfo->mem->alloc_large) + ((j_common_ptr) cinfo, JPOOL_IMAGE, + (size_t) ((cinfo->output_width + 2) * (3 * SIZEOF(FSERROR)))); + /* Might as well create the error-limiting table too. */ + init_error_limit(cinfo); + } +} + +#endif /* QUANT_2PASS_SUPPORTED */ diff --git a/jpeg/jutils.c b/jpeg/jutils.c new file mode 100644 index 0000000..5b16b6d --- /dev/null +++ b/jpeg/jutils.c @@ -0,0 +1,227 @@ +/* + * jutils.c + * + * Copyright (C) 1991-1996, Thomas G. Lane. + * Modified 2009-2011 by Guido Vollbeding. + * This file is part of the Independent JPEG Group's software. + * For conditions of distribution and use, see the accompanying README file. + * + * This file contains tables and miscellaneous utility routines needed + * for both compression and decompression. + * Note we prefix all global names with "j" to minimize conflicts with + * a surrounding application. + */ + +#define JPEG_INTERNALS +#include "jinclude.h" +#include "jpeglib.h" + + +/* + * jpeg_zigzag_order[i] is the zigzag-order position of the i'th element + * of a DCT block read in natural order (left to right, top to bottom). + */ + +#if 0 /* This table is not actually needed in v6a */ + +const int jpeg_zigzag_order[DCTSIZE2] = { + 0, 1, 5, 6, 14, 15, 27, 28, + 2, 4, 7, 13, 16, 26, 29, 42, + 3, 8, 12, 17, 25, 30, 41, 43, + 9, 11, 18, 24, 31, 40, 44, 53, + 10, 19, 23, 32, 39, 45, 52, 54, + 20, 22, 33, 38, 46, 51, 55, 60, + 21, 34, 37, 47, 50, 56, 59, 61, + 35, 36, 48, 49, 57, 58, 62, 63 +}; + +#endif + +/* + * jpeg_natural_order[i] is the natural-order position of the i'th element + * of zigzag order. + * + * When reading corrupted data, the Huffman decoders could attempt + * to reference an entry beyond the end of this array (if the decoded + * zero run length reaches past the end of the block). To prevent + * wild stores without adding an inner-loop test, we put some extra + * "63"s after the real entries. This will cause the extra coefficient + * to be stored in location 63 of the block, not somewhere random. + * The worst case would be a run-length of 15, which means we need 16 + * fake entries. + */ + +const int jpeg_natural_order[DCTSIZE2+16] = { + 0, 1, 8, 16, 9, 2, 3, 10, + 17, 24, 32, 25, 18, 11, 4, 5, + 12, 19, 26, 33, 40, 48, 41, 34, + 27, 20, 13, 6, 7, 14, 21, 28, + 35, 42, 49, 56, 57, 50, 43, 36, + 29, 22, 15, 23, 30, 37, 44, 51, + 58, 59, 52, 45, 38, 31, 39, 46, + 53, 60, 61, 54, 47, 55, 62, 63, + 63, 63, 63, 63, 63, 63, 63, 63, /* extra entries for safety in decoder */ + 63, 63, 63, 63, 63, 63, 63, 63 +}; + +const int jpeg_natural_order7[7*7+16] = { + 0, 1, 8, 16, 9, 2, 3, 10, + 17, 24, 32, 25, 18, 11, 4, 5, + 12, 19, 26, 33, 40, 48, 41, 34, + 27, 20, 13, 6, 14, 21, 28, 35, + 42, 49, 50, 43, 36, 29, 22, 30, + 37, 44, 51, 52, 45, 38, 46, 53, + 54, + 63, 63, 63, 63, 63, 63, 63, 63, /* extra entries for safety in decoder */ + 63, 63, 63, 63, 63, 63, 63, 63 +}; + +const int jpeg_natural_order6[6*6+16] = { + 0, 1, 8, 16, 9, 2, 3, 10, + 17, 24, 32, 25, 18, 11, 4, 5, + 12, 19, 26, 33, 40, 41, 34, 27, + 20, 13, 21, 28, 35, 42, 43, 36, + 29, 37, 44, 45, + 63, 63, 63, 63, 63, 63, 63, 63, /* extra entries for safety in decoder */ + 63, 63, 63, 63, 63, 63, 63, 63 +}; + +const int jpeg_natural_order5[5*5+16] = { + 0, 1, 8, 16, 9, 2, 3, 10, + 17, 24, 32, 25, 18, 11, 4, 12, + 19, 26, 33, 34, 27, 20, 28, 35, + 36, + 63, 63, 63, 63, 63, 63, 63, 63, /* extra entries for safety in decoder */ + 63, 63, 63, 63, 63, 63, 63, 63 +}; + +const int jpeg_natural_order4[4*4+16] = { + 0, 1, 8, 16, 9, 2, 3, 10, + 17, 24, 25, 18, 11, 19, 26, 27, + 63, 63, 63, 63, 63, 63, 63, 63, /* extra entries for safety in decoder */ + 63, 63, 63, 63, 63, 63, 63, 63 +}; + +const int jpeg_natural_order3[3*3+16] = { + 0, 1, 8, 16, 9, 2, 10, 17, + 18, + 63, 63, 63, 63, 63, 63, 63, 63, /* extra entries for safety in decoder */ + 63, 63, 63, 63, 63, 63, 63, 63 +}; + +const int jpeg_natural_order2[2*2+16] = { + 0, 1, 8, 9, + 63, 63, 63, 63, 63, 63, 63, 63, /* extra entries for safety in decoder */ + 63, 63, 63, 63, 63, 63, 63, 63 +}; + + +/* + * Arithmetic utilities + */ + +GLOBAL(long) +jdiv_round_up (long a, long b) +/* Compute a/b rounded up to next integer, ie, ceil(a/b) */ +/* Assumes a >= 0, b > 0 */ +{ + return (a + b - 1L) / b; +} + + +GLOBAL(long) +jround_up (long a, long b) +/* Compute a rounded up to next multiple of b, ie, ceil(a/b)*b */ +/* Assumes a >= 0, b > 0 */ +{ + a += b - 1L; + return a - (a % b); +} + + +/* On normal machines we can apply MEMCOPY() and MEMZERO() to sample arrays + * and coefficient-block arrays. This won't work on 80x86 because the arrays + * are FAR and we're assuming a small-pointer memory model. However, some + * DOS compilers provide far-pointer versions of memcpy() and memset() even + * in the small-model libraries. These will be used if USE_FMEM is defined. + * Otherwise, the routines below do it the hard way. (The performance cost + * is not all that great, because these routines aren't very heavily used.) + */ + +#ifndef NEED_FAR_POINTERS /* normal case, same as regular macro */ +#define FMEMCOPY(dest,src,size) MEMCOPY(dest,src,size) +#else /* 80x86 case, define if we can */ +#ifdef USE_FMEM +#define FMEMCOPY(dest,src,size) _fmemcpy((void FAR *)(dest), (const void FAR *)(src), (size_t)(size)) +#else +/* This function is for use by the FMEMZERO macro defined in jpegint.h. + * Do not call this function directly, use the FMEMZERO macro instead. + */ +GLOBAL(void) +jzero_far (void FAR * target, size_t bytestozero) +/* Zero out a chunk of FAR memory. */ +/* This might be sample-array data, block-array data, or alloc_large data. */ +{ + register char FAR * ptr = (char FAR *) target; + register size_t count; + + for (count = bytestozero; count > 0; count--) { + *ptr++ = 0; + } +} +#endif +#endif + + +GLOBAL(void) +jcopy_sample_rows (JSAMPARRAY input_array, int source_row, + JSAMPARRAY output_array, int dest_row, + int num_rows, JDIMENSION num_cols) +/* Copy some rows of samples from one place to another. + * num_rows rows are copied from input_array[source_row++] + * to output_array[dest_row++]; these areas may overlap for duplication. + * The source and destination arrays must be at least as wide as num_cols. + */ +{ + register JSAMPROW inptr, outptr; +#ifdef FMEMCOPY + register size_t count = (size_t) (num_cols * SIZEOF(JSAMPLE)); +#else + register JDIMENSION count; +#endif + register int row; + + input_array += source_row; + output_array += dest_row; + + for (row = num_rows; row > 0; row--) { + inptr = *input_array++; + outptr = *output_array++; +#ifdef FMEMCOPY + FMEMCOPY(outptr, inptr, count); +#else + for (count = num_cols; count > 0; count--) + *outptr++ = *inptr++; /* needn't bother with GETJSAMPLE() here */ +#endif + } +} + + +GLOBAL(void) +jcopy_block_row (JBLOCKROW input_row, JBLOCKROW output_row, + JDIMENSION num_blocks) +/* Copy a row of coefficient blocks from one place to another. */ +{ +#ifdef FMEMCOPY + FMEMCOPY(output_row, input_row, num_blocks * (DCTSIZE2 * SIZEOF(JCOEF))); +#else + register JCOEFPTR inptr, outptr; + register long count; + + inptr = (JCOEFPTR) input_row; + outptr = (JCOEFPTR) output_row; + for (count = (long) num_blocks * DCTSIZE2; count > 0; count--) { + *outptr++ = *inptr++; + } +#endif +} diff --git a/jpeg/jversion.h b/jpeg/jversion.h new file mode 100644 index 0000000..5d49151 --- /dev/null +++ b/jpeg/jversion.h @@ -0,0 +1,14 @@ +/* + * jversion.h + * + * Copyright (C) 1991-2012, Thomas G. Lane, Guido Vollbeding. + * This file is part of the Independent JPEG Group's software. + * For conditions of distribution and use, see the accompanying README file. + * + * This file contains software version identification. + */ + + +#define JVERSION "8d 15-Jan-2012" + +#define JCOPYRIGHT "Copyright (C) 2012, Thomas G. Lane, Guido Vollbeding" diff --git a/jpeg/libjpeg.map b/jpeg/libjpeg.map new file mode 100644 index 0000000..ac77dca --- /dev/null +++ b/jpeg/libjpeg.map @@ -0,0 +1,4 @@ +LIBJPEG_8.0 { + global: + *; +}; diff --git a/jpeg/libjpeg.txt b/jpeg/libjpeg.txt new file mode 100644 index 0000000..9702669 --- /dev/null +++ b/jpeg/libjpeg.txt @@ -0,0 +1,3085 @@ +USING THE IJG JPEG LIBRARY + +Copyright (C) 1994-2011, Thomas G. Lane, Guido Vollbeding. +This file is part of the Independent JPEG Group's software. +For conditions of distribution and use, see the accompanying README file. + + +This file describes how to use the IJG JPEG library within an application +program. Read it if you want to write a program that uses the library. + +The file example.c provides heavily commented skeleton code for calling the +JPEG library. Also see jpeglib.h (the include file to be used by application +programs) for full details about data structures and function parameter lists. +The library source code, of course, is the ultimate reference. + +Note that there have been *major* changes from the application interface +presented by IJG version 4 and earlier versions. The old design had several +inherent limitations, and it had accumulated a lot of cruft as we added +features while trying to minimize application-interface changes. We have +sacrificed backward compatibility in the version 5 rewrite, but we think the +improvements justify this. + + +TABLE OF CONTENTS +----------------- + +Overview: + Functions provided by the library + Outline of typical usage +Basic library usage: + Data formats + Compression details + Decompression details + Mechanics of usage: include files, linking, etc +Advanced features: + Compression parameter selection + Decompression parameter selection + Special color spaces + Error handling + Compressed data handling (source and destination managers) + I/O suspension + Progressive JPEG support + Buffered-image mode + Abbreviated datastreams and multiple images + Special markers + Raw (downsampled) image data + Really raw data: DCT coefficients + Progress monitoring + Memory management + Memory usage + Library compile-time options + Portability considerations + Notes for MS-DOS implementors + +You should read at least the overview and basic usage sections before trying +to program with the library. The sections on advanced features can be read +if and when you need them. + + +OVERVIEW +======== + +Functions provided by the library +--------------------------------- + +The IJG JPEG library provides C code to read and write JPEG-compressed image +files. The surrounding application program receives or supplies image data a +scanline at a time, using a straightforward uncompressed image format. All +details of color conversion and other preprocessing/postprocessing can be +handled by the library. + +The library includes a substantial amount of code that is not covered by the +JPEG standard but is necessary for typical applications of JPEG. These +functions preprocess the image before JPEG compression or postprocess it after +decompression. They include colorspace conversion, downsampling/upsampling, +and color quantization. The application indirectly selects use of this code +by specifying the format in which it wishes to supply or receive image data. +For example, if colormapped output is requested, then the decompression +library automatically invokes color quantization. + +A wide range of quality vs. speed tradeoffs are possible in JPEG processing, +and even more so in decompression postprocessing. The decompression library +provides multiple implementations that cover most of the useful tradeoffs, +ranging from very-high-quality down to fast-preview operation. On the +compression side we have generally not provided low-quality choices, since +compression is normally less time-critical. It should be understood that the +low-quality modes may not meet the JPEG standard's accuracy requirements; +nonetheless, they are useful for viewers. + +A word about functions *not* provided by the library. We handle a subset of +the ISO JPEG standard; most baseline, extended-sequential, and progressive +JPEG processes are supported. (Our subset includes all features now in common +use.) Unsupported ISO options include: + * Hierarchical storage + * Lossless JPEG + * DNL marker + * Nonintegral subsampling ratios +We support both 8- and 12-bit data precision, but this is a compile-time +choice rather than a run-time choice; hence it is difficult to use both +precisions in a single application. + +By itself, the library handles only interchange JPEG datastreams --- in +particular the widely used JFIF file format. The library can be used by +surrounding code to process interchange or abbreviated JPEG datastreams that +are embedded in more complex file formats. (For example, this library is +used by the free LIBTIFF library to support JPEG compression in TIFF.) + + +Outline of typical usage +------------------------ + +The rough outline of a JPEG compression operation is: + + Allocate and initialize a JPEG compression object + Specify the destination for the compressed data (eg, a file) + Set parameters for compression, including image size & colorspace + jpeg_start_compress(...); + while (scan lines remain to be written) + jpeg_write_scanlines(...); + jpeg_finish_compress(...); + Release the JPEG compression object + +A JPEG compression object holds parameters and working state for the JPEG +library. We make creation/destruction of the object separate from starting +or finishing compression of an image; the same object can be re-used for a +series of image compression operations. This makes it easy to re-use the +same parameter settings for a sequence of images. Re-use of a JPEG object +also has important implications for processing abbreviated JPEG datastreams, +as discussed later. + +The image data to be compressed is supplied to jpeg_write_scanlines() from +in-memory buffers. If the application is doing file-to-file compression, +reading image data from the source file is the application's responsibility. +The library emits compressed data by calling a "data destination manager", +which typically will write the data into a file; but the application can +provide its own destination manager to do something else. + +Similarly, the rough outline of a JPEG decompression operation is: + + Allocate and initialize a JPEG decompression object + Specify the source of the compressed data (eg, a file) + Call jpeg_read_header() to obtain image info + Set parameters for decompression + jpeg_start_decompress(...); + while (scan lines remain to be read) + jpeg_read_scanlines(...); + jpeg_finish_decompress(...); + Release the JPEG decompression object + +This is comparable to the compression outline except that reading the +datastream header is a separate step. This is helpful because information +about the image's size, colorspace, etc is available when the application +selects decompression parameters. For example, the application can choose an +output scaling ratio that will fit the image into the available screen size. + +The decompression library obtains compressed data by calling a data source +manager, which typically will read the data from a file; but other behaviors +can be obtained with a custom source manager. Decompressed data is delivered +into in-memory buffers passed to jpeg_read_scanlines(). + +It is possible to abort an incomplete compression or decompression operation +by calling jpeg_abort(); or, if you do not need to retain the JPEG object, +simply release it by calling jpeg_destroy(). + +JPEG compression and decompression objects are two separate struct types. +However, they share some common fields, and certain routines such as +jpeg_destroy() can work on either type of object. + +The JPEG library has no static variables: all state is in the compression +or decompression object. Therefore it is possible to process multiple +compression and decompression operations concurrently, using multiple JPEG +objects. + +Both compression and decompression can be done in an incremental memory-to- +memory fashion, if suitable source/destination managers are used. See the +section on "I/O suspension" for more details. + + +BASIC LIBRARY USAGE +=================== + +Data formats +------------ + +Before diving into procedural details, it is helpful to understand the +image data format that the JPEG library expects or returns. + +The standard input image format is a rectangular array of pixels, with each +pixel having the same number of "component" or "sample" values (color +channels). You must specify how many components there are and the colorspace +interpretation of the components. Most applications will use RGB data +(three components per pixel) or grayscale data (one component per pixel). +PLEASE NOTE THAT RGB DATA IS THREE SAMPLES PER PIXEL, GRAYSCALE ONLY ONE. +A remarkable number of people manage to miss this, only to find that their +programs don't work with grayscale JPEG files. + +There is no provision for colormapped input. JPEG files are always full-color +or full grayscale (or sometimes another colorspace such as CMYK). You can +feed in a colormapped image by expanding it to full-color format. However +JPEG often doesn't work very well with source data that has been colormapped, +because of dithering noise. This is discussed in more detail in the JPEG FAQ +and the other references mentioned in the README file. + +Pixels are stored by scanlines, with each scanline running from left to +right. The component values for each pixel are adjacent in the row; for +example, R,G,B,R,G,B,R,G,B,... for 24-bit RGB color. Each scanline is an +array of data type JSAMPLE --- which is typically "unsigned char", unless +you've changed jmorecfg.h. (You can also change the RGB pixel layout, say +to B,G,R order, by modifying jmorecfg.h. But see the restrictions listed in +that file before doing so.) + +A 2-D array of pixels is formed by making a list of pointers to the starts of +scanlines; so the scanlines need not be physically adjacent in memory. Even +if you process just one scanline at a time, you must make a one-element +pointer array to conform to this structure. Pointers to JSAMPLE rows are of +type JSAMPROW, and the pointer to the pointer array is of type JSAMPARRAY. + +The library accepts or supplies one or more complete scanlines per call. +It is not possible to process part of a row at a time. Scanlines are always +processed top-to-bottom. You can process an entire image in one call if you +have it all in memory, but usually it's simplest to process one scanline at +a time. + +For best results, source data values should have the precision specified by +BITS_IN_JSAMPLE (normally 8 bits). For instance, if you choose to compress +data that's only 6 bits/channel, you should left-justify each value in a +byte before passing it to the compressor. If you need to compress data +that has more than 8 bits/channel, compile with BITS_IN_JSAMPLE = 12. +(See "Library compile-time options", later.) + + +The data format returned by the decompressor is the same in all details, +except that colormapped output is supported. (Again, a JPEG file is never +colormapped. But you can ask the decompressor to perform on-the-fly color +quantization to deliver colormapped output.) If you request colormapped +output then the returned data array contains a single JSAMPLE per pixel; +its value is an index into a color map. The color map is represented as +a 2-D JSAMPARRAY in which each row holds the values of one color component, +that is, colormap[i][j] is the value of the i'th color component for pixel +value (map index) j. Note that since the colormap indexes are stored in +JSAMPLEs, the maximum number of colors is limited by the size of JSAMPLE +(ie, at most 256 colors for an 8-bit JPEG library). + + +Compression details +------------------- + +Here we revisit the JPEG compression outline given in the overview. + +1. Allocate and initialize a JPEG compression object. + +A JPEG compression object is a "struct jpeg_compress_struct". (It also has +a bunch of subsidiary structures which are allocated via malloc(), but the +application doesn't control those directly.) This struct can be just a local +variable in the calling routine, if a single routine is going to execute the +whole JPEG compression sequence. Otherwise it can be static or allocated +from malloc(). + +You will also need a structure representing a JPEG error handler. The part +of this that the library cares about is a "struct jpeg_error_mgr". If you +are providing your own error handler, you'll typically want to embed the +jpeg_error_mgr struct in a larger structure; this is discussed later under +"Error handling". For now we'll assume you are just using the default error +handler. The default error handler will print JPEG error/warning messages +on stderr, and it will call exit() if a fatal error occurs. + +You must initialize the error handler structure, store a pointer to it into +the JPEG object's "err" field, and then call jpeg_create_compress() to +initialize the rest of the JPEG object. + +Typical code for this step, if you are using the default error handler, is + + struct jpeg_compress_struct cinfo; + struct jpeg_error_mgr jerr; + ... + cinfo.err = jpeg_std_error(&jerr); + jpeg_create_compress(&cinfo); + +jpeg_create_compress allocates a small amount of memory, so it could fail +if you are out of memory. In that case it will exit via the error handler; +that's why the error handler must be initialized first. + + +2. Specify the destination for the compressed data (eg, a file). + +As previously mentioned, the JPEG library delivers compressed data to a +"data destination" module. The library includes one data destination +module which knows how to write to a stdio stream. You can use your own +destination module if you want to do something else, as discussed later. + +If you use the standard destination module, you must open the target stdio +stream beforehand. Typical code for this step looks like: + + FILE * outfile; + ... + if ((outfile = fopen(filename, "wb")) == NULL) { + fprintf(stderr, "can't open %s\n", filename); + exit(1); + } + jpeg_stdio_dest(&cinfo, outfile); + +where the last line invokes the standard destination module. + +WARNING: it is critical that the binary compressed data be delivered to the +output file unchanged. On non-Unix systems the stdio library may perform +newline translation or otherwise corrupt binary data. To suppress this +behavior, you may need to use a "b" option to fopen (as shown above), or use +setmode() or another routine to put the stdio stream in binary mode. See +cjpeg.c and djpeg.c for code that has been found to work on many systems. + +You can select the data destination after setting other parameters (step 3), +if that's more convenient. You may not change the destination between +calling jpeg_start_compress() and jpeg_finish_compress(). + + +3. Set parameters for compression, including image size & colorspace. + +You must supply information about the source image by setting the following +fields in the JPEG object (cinfo structure): + + image_width Width of image, in pixels + image_height Height of image, in pixels + input_components Number of color channels (samples per pixel) + in_color_space Color space of source image + +The image dimensions are, hopefully, obvious. JPEG supports image dimensions +of 1 to 64K pixels in either direction. The input color space is typically +RGB or grayscale, and input_components is 3 or 1 accordingly. (See "Special +color spaces", later, for more info.) The in_color_space field must be +assigned one of the J_COLOR_SPACE enum constants, typically JCS_RGB or +JCS_GRAYSCALE. + +JPEG has a large number of compression parameters that determine how the +image is encoded. Most applications don't need or want to know about all +these parameters. You can set all the parameters to reasonable defaults by +calling jpeg_set_defaults(); then, if there are particular values you want +to change, you can do so after that. The "Compression parameter selection" +section tells about all the parameters. + +You must set in_color_space correctly before calling jpeg_set_defaults(), +because the defaults depend on the source image colorspace. However the +other three source image parameters need not be valid until you call +jpeg_start_compress(). There's no harm in calling jpeg_set_defaults() more +than once, if that happens to be convenient. + +Typical code for a 24-bit RGB source image is + + cinfo.image_width = Width; /* image width and height, in pixels */ + cinfo.image_height = Height; + cinfo.input_components = 3; /* # of color components per pixel */ + cinfo.in_color_space = JCS_RGB; /* colorspace of input image */ + + jpeg_set_defaults(&cinfo); + /* Make optional parameter settings here */ + + +4. jpeg_start_compress(...); + +After you have established the data destination and set all the necessary +source image info and other parameters, call jpeg_start_compress() to begin +a compression cycle. This will initialize internal state, allocate working +storage, and emit the first few bytes of the JPEG datastream header. + +Typical code: + + jpeg_start_compress(&cinfo, TRUE); + +The "TRUE" parameter ensures that a complete JPEG interchange datastream +will be written. This is appropriate in most cases. If you think you might +want to use an abbreviated datastream, read the section on abbreviated +datastreams, below. + +Once you have called jpeg_start_compress(), you may not alter any JPEG +parameters or other fields of the JPEG object until you have completed +the compression cycle. + + +5. while (scan lines remain to be written) + jpeg_write_scanlines(...); + +Now write all the required image data by calling jpeg_write_scanlines() +one or more times. You can pass one or more scanlines in each call, up +to the total image height. In most applications it is convenient to pass +just one or a few scanlines at a time. The expected format for the passed +data is discussed under "Data formats", above. + +Image data should be written in top-to-bottom scanline order. The JPEG spec +contains some weasel wording about how top and bottom are application-defined +terms (a curious interpretation of the English language...) but if you want +your files to be compatible with everyone else's, you WILL use top-to-bottom +order. If the source data must be read in bottom-to-top order, you can use +the JPEG library's virtual array mechanism to invert the data efficiently. +Examples of this can be found in the sample application cjpeg. + +The library maintains a count of the number of scanlines written so far +in the next_scanline field of the JPEG object. Usually you can just use +this variable as the loop counter, so that the loop test looks like +"while (cinfo.next_scanline < cinfo.image_height)". + +Code for this step depends heavily on the way that you store the source data. +example.c shows the following code for the case of a full-size 2-D source +array containing 3-byte RGB pixels: + + JSAMPROW row_pointer[1]; /* pointer to a single row */ + int row_stride; /* physical row width in buffer */ + + row_stride = image_width * 3; /* JSAMPLEs per row in image_buffer */ + + while (cinfo.next_scanline < cinfo.image_height) { + row_pointer[0] = & image_buffer[cinfo.next_scanline * row_stride]; + jpeg_write_scanlines(&cinfo, row_pointer, 1); + } + +jpeg_write_scanlines() returns the number of scanlines actually written. +This will normally be equal to the number passed in, so you can usually +ignore the return value. It is different in just two cases: + * If you try to write more scanlines than the declared image height, + the additional scanlines are ignored. + * If you use a suspending data destination manager, output buffer overrun + will cause the compressor to return before accepting all the passed lines. + This feature is discussed under "I/O suspension", below. The normal + stdio destination manager will NOT cause this to happen. +In any case, the return value is the same as the change in the value of +next_scanline. + + +6. jpeg_finish_compress(...); + +After all the image data has been written, call jpeg_finish_compress() to +complete the compression cycle. This step is ESSENTIAL to ensure that the +last bufferload of data is written to the data destination. +jpeg_finish_compress() also releases working memory associated with the JPEG +object. + +Typical code: + + jpeg_finish_compress(&cinfo); + +If using the stdio destination manager, don't forget to close the output +stdio stream (if necessary) afterwards. + +If you have requested a multi-pass operating mode, such as Huffman code +optimization, jpeg_finish_compress() will perform the additional passes using +data buffered by the first pass. In this case jpeg_finish_compress() may take +quite a while to complete. With the default compression parameters, this will +not happen. + +It is an error to call jpeg_finish_compress() before writing the necessary +total number of scanlines. If you wish to abort compression, call +jpeg_abort() as discussed below. + +After completing a compression cycle, you may dispose of the JPEG object +as discussed next, or you may use it to compress another image. In that case +return to step 2, 3, or 4 as appropriate. If you do not change the +destination manager, the new datastream will be written to the same target. +If you do not change any JPEG parameters, the new datastream will be written +with the same parameters as before. Note that you can change the input image +dimensions freely between cycles, but if you change the input colorspace, you +should call jpeg_set_defaults() to adjust for the new colorspace; and then +you'll need to repeat all of step 3. + + +7. Release the JPEG compression object. + +When you are done with a JPEG compression object, destroy it by calling +jpeg_destroy_compress(). This will free all subsidiary memory (regardless of +the previous state of the object). Or you can call jpeg_destroy(), which +works for either compression or decompression objects --- this may be more +convenient if you are sharing code between compression and decompression +cases. (Actually, these routines are equivalent except for the declared type +of the passed pointer. To avoid gripes from ANSI C compilers, jpeg_destroy() +should be passed a j_common_ptr.) + +If you allocated the jpeg_compress_struct structure from malloc(), freeing +it is your responsibility --- jpeg_destroy() won't. Ditto for the error +handler structure. + +Typical code: + + jpeg_destroy_compress(&cinfo); + + +8. Aborting. + +If you decide to abort a compression cycle before finishing, you can clean up +in either of two ways: + +* If you don't need the JPEG object any more, just call + jpeg_destroy_compress() or jpeg_destroy() to release memory. This is + legitimate at any point after calling jpeg_create_compress() --- in fact, + it's safe even if jpeg_create_compress() fails. + +* If you want to re-use the JPEG object, call jpeg_abort_compress(), or call + jpeg_abort() which works on both compression and decompression objects. + This will return the object to an idle state, releasing any working memory. + jpeg_abort() is allowed at any time after successful object creation. + +Note that cleaning up the data destination, if required, is your +responsibility; neither of these routines will call term_destination(). +(See "Compressed data handling", below, for more about that.) + +jpeg_destroy() and jpeg_abort() are the only safe calls to make on a JPEG +object that has reported an error by calling error_exit (see "Error handling" +for more info). The internal state of such an object is likely to be out of +whack. Either of these two routines will return the object to a known state. + + +Decompression details +--------------------- + +Here we revisit the JPEG decompression outline given in the overview. + +1. Allocate and initialize a JPEG decompression object. + +This is just like initialization for compression, as discussed above, +except that the object is a "struct jpeg_decompress_struct" and you +call jpeg_create_decompress(). Error handling is exactly the same. + +Typical code: + + struct jpeg_decompress_struct cinfo; + struct jpeg_error_mgr jerr; + ... + cinfo.err = jpeg_std_error(&jerr); + jpeg_create_decompress(&cinfo); + +(Both here and in the IJG code, we usually use variable name "cinfo" for +both compression and decompression objects.) + + +2. Specify the source of the compressed data (eg, a file). + +As previously mentioned, the JPEG library reads compressed data from a "data +source" module. The library includes one data source module which knows how +to read from a stdio stream. You can use your own source module if you want +to do something else, as discussed later. + +If you use the standard source module, you must open the source stdio stream +beforehand. Typical code for this step looks like: + + FILE * infile; + ... + if ((infile = fopen(filename, "rb")) == NULL) { + fprintf(stderr, "can't open %s\n", filename); + exit(1); + } + jpeg_stdio_src(&cinfo, infile); + +where the last line invokes the standard source module. + +WARNING: it is critical that the binary compressed data be read unchanged. +On non-Unix systems the stdio library may perform newline translation or +otherwise corrupt binary data. To suppress this behavior, you may need to use +a "b" option to fopen (as shown above), or use setmode() or another routine to +put the stdio stream in binary mode. See cjpeg.c and djpeg.c for code that +has been found to work on many systems. + +You may not change the data source between calling jpeg_read_header() and +jpeg_finish_decompress(). If you wish to read a series of JPEG images from +a single source file, you should repeat the jpeg_read_header() to +jpeg_finish_decompress() sequence without reinitializing either the JPEG +object or the data source module; this prevents buffered input data from +being discarded. + + +3. Call jpeg_read_header() to obtain image info. + +Typical code for this step is just + + jpeg_read_header(&cinfo, TRUE); + +This will read the source datastream header markers, up to the beginning +of the compressed data proper. On return, the image dimensions and other +info have been stored in the JPEG object. The application may wish to +consult this information before selecting decompression parameters. + +More complex code is necessary if + * A suspending data source is used --- in that case jpeg_read_header() + may return before it has read all the header data. See "I/O suspension", + below. The normal stdio source manager will NOT cause this to happen. + * Abbreviated JPEG files are to be processed --- see the section on + abbreviated datastreams. Standard applications that deal only in + interchange JPEG files need not be concerned with this case either. + +It is permissible to stop at this point if you just wanted to find out the +image dimensions and other header info for a JPEG file. In that case, +call jpeg_destroy() when you are done with the JPEG object, or call +jpeg_abort() to return it to an idle state before selecting a new data +source and reading another header. + + +4. Set parameters for decompression. + +jpeg_read_header() sets appropriate default decompression parameters based on +the properties of the image (in particular, its colorspace). However, you +may well want to alter these defaults before beginning the decompression. +For example, the default is to produce full color output from a color file. +If you want colormapped output you must ask for it. Other options allow the +returned image to be scaled and allow various speed/quality tradeoffs to be +selected. "Decompression parameter selection", below, gives details. + +If the defaults are appropriate, nothing need be done at this step. + +Note that all default values are set by each call to jpeg_read_header(). +If you reuse a decompression object, you cannot expect your parameter +settings to be preserved across cycles, as you can for compression. +You must set desired parameter values each time. + + +5. jpeg_start_decompress(...); + +Once the parameter values are satisfactory, call jpeg_start_decompress() to +begin decompression. This will initialize internal state, allocate working +memory, and prepare for returning data. + +Typical code is just + + jpeg_start_decompress(&cinfo); + +If you have requested a multi-pass operating mode, such as 2-pass color +quantization, jpeg_start_decompress() will do everything needed before data +output can begin. In this case jpeg_start_decompress() may take quite a while +to complete. With a single-scan (non progressive) JPEG file and default +decompression parameters, this will not happen; jpeg_start_decompress() will +return quickly. + +After this call, the final output image dimensions, including any requested +scaling, are available in the JPEG object; so is the selected colormap, if +colormapped output has been requested. Useful fields include + + output_width image width and height, as scaled + output_height + out_color_components # of color components in out_color_space + output_components # of color components returned per pixel + colormap the selected colormap, if any + actual_number_of_colors number of entries in colormap + +output_components is 1 (a colormap index) when quantizing colors; otherwise it +equals out_color_components. It is the number of JSAMPLE values that will be +emitted per pixel in the output arrays. + +Typically you will need to allocate data buffers to hold the incoming image. +You will need output_width * output_components JSAMPLEs per scanline in your +output buffer, and a total of output_height scanlines will be returned. + +Note: if you are using the JPEG library's internal memory manager to allocate +data buffers (as djpeg does), then the manager's protocol requires that you +request large buffers *before* calling jpeg_start_decompress(). This is a +little tricky since the output_XXX fields are not normally valid then. You +can make them valid by calling jpeg_calc_output_dimensions() after setting the +relevant parameters (scaling, output color space, and quantization flag). + + +6. while (scan lines remain to be read) + jpeg_read_scanlines(...); + +Now you can read the decompressed image data by calling jpeg_read_scanlines() +one or more times. At each call, you pass in the maximum number of scanlines +to be read (ie, the height of your working buffer); jpeg_read_scanlines() +will return up to that many lines. The return value is the number of lines +actually read. The format of the returned data is discussed under "Data +formats", above. Don't forget that grayscale and color JPEGs will return +different data formats! + +Image data is returned in top-to-bottom scanline order. If you must write +out the image in bottom-to-top order, you can use the JPEG library's virtual +array mechanism to invert the data efficiently. Examples of this can be +found in the sample application djpeg. + +The library maintains a count of the number of scanlines returned so far +in the output_scanline field of the JPEG object. Usually you can just use +this variable as the loop counter, so that the loop test looks like +"while (cinfo.output_scanline < cinfo.output_height)". (Note that the test +should NOT be against image_height, unless you never use scaling. The +image_height field is the height of the original unscaled image.) +The return value always equals the change in the value of output_scanline. + +If you don't use a suspending data source, it is safe to assume that +jpeg_read_scanlines() reads at least one scanline per call, until the +bottom of the image has been reached. + +If you use a buffer larger than one scanline, it is NOT safe to assume that +jpeg_read_scanlines() fills it. (The current implementation returns only a +few scanlines per call, no matter how large a buffer you pass.) So you must +always provide a loop that calls jpeg_read_scanlines() repeatedly until the +whole image has been read. + + +7. jpeg_finish_decompress(...); + +After all the image data has been read, call jpeg_finish_decompress() to +complete the decompression cycle. This causes working memory associated +with the JPEG object to be released. + +Typical code: + + jpeg_finish_decompress(&cinfo); + +If using the stdio source manager, don't forget to close the source stdio +stream if necessary. + +It is an error to call jpeg_finish_decompress() before reading the correct +total number of scanlines. If you wish to abort decompression, call +jpeg_abort() as discussed below. + +After completing a decompression cycle, you may dispose of the JPEG object as +discussed next, or you may use it to decompress another image. In that case +return to step 2 or 3 as appropriate. If you do not change the source +manager, the next image will be read from the same source. + + +8. Release the JPEG decompression object. + +When you are done with a JPEG decompression object, destroy it by calling +jpeg_destroy_decompress() or jpeg_destroy(). The previous discussion of +destroying compression objects applies here too. + +Typical code: + + jpeg_destroy_decompress(&cinfo); + + +9. Aborting. + +You can abort a decompression cycle by calling jpeg_destroy_decompress() or +jpeg_destroy() if you don't need the JPEG object any more, or +jpeg_abort_decompress() or jpeg_abort() if you want to reuse the object. +The previous discussion of aborting compression cycles applies here too. + + +Mechanics of usage: include files, linking, etc +----------------------------------------------- + +Applications using the JPEG library should include the header file jpeglib.h +to obtain declarations of data types and routines. Before including +jpeglib.h, include system headers that define at least the typedefs FILE and +size_t. On ANSI-conforming systems, including is sufficient; on +older Unix systems, you may need to define size_t. + +If the application needs to refer to individual JPEG library error codes, also +include jerror.h to define those symbols. + +jpeglib.h indirectly includes the files jconfig.h and jmorecfg.h. If you are +installing the JPEG header files in a system directory, you will want to +install all four files: jpeglib.h, jerror.h, jconfig.h, jmorecfg.h. + +The most convenient way to include the JPEG code into your executable program +is to prepare a library file ("libjpeg.a", or a corresponding name on non-Unix +machines) and reference it at your link step. If you use only half of the +library (only compression or only decompression), only that much code will be +included from the library, unless your linker is hopelessly brain-damaged. +The supplied makefiles build libjpeg.a automatically (see install.txt). + +While you can build the JPEG library as a shared library if the whim strikes +you, we don't really recommend it. The trouble with shared libraries is that +at some point you'll probably try to substitute a new version of the library +without recompiling the calling applications. That generally doesn't work +because the parameter struct declarations usually change with each new +version. In other words, the library's API is *not* guaranteed binary +compatible across versions; we only try to ensure source-code compatibility. +(In hindsight, it might have been smarter to hide the parameter structs from +applications and introduce a ton of access functions instead. Too late now, +however.) + +On some systems your application may need to set up a signal handler to ensure +that temporary files are deleted if the program is interrupted. This is most +critical if you are on MS-DOS and use the jmemdos.c memory manager back end; +it will try to grab extended memory for temp files, and that space will NOT be +freed automatically. See cjpeg.c or djpeg.c for an example signal handler. + +It may be worth pointing out that the core JPEG library does not actually +require the stdio library: only the default source/destination managers and +error handler need it. You can use the library in a stdio-less environment +if you replace those modules and use jmemnobs.c (or another memory manager of +your own devising). More info about the minimum system library requirements +may be found in jinclude.h. + + +ADVANCED FEATURES +================= + +Compression parameter selection +------------------------------- + +This section describes all the optional parameters you can set for JPEG +compression, as well as the "helper" routines provided to assist in this +task. Proper setting of some parameters requires detailed understanding +of the JPEG standard; if you don't know what a parameter is for, it's best +not to mess with it! See REFERENCES in the README file for pointers to +more info about JPEG. + +It's a good idea to call jpeg_set_defaults() first, even if you plan to set +all the parameters; that way your code is more likely to work with future JPEG +libraries that have additional parameters. For the same reason, we recommend +you use a helper routine where one is provided, in preference to twiddling +cinfo fields directly. + +The helper routines are: + +jpeg_set_defaults (j_compress_ptr cinfo) + This routine sets all JPEG parameters to reasonable defaults, using + only the input image's color space (field in_color_space, which must + already be set in cinfo). Many applications will only need to use + this routine and perhaps jpeg_set_quality(). + +jpeg_set_colorspace (j_compress_ptr cinfo, J_COLOR_SPACE colorspace) + Sets the JPEG file's colorspace (field jpeg_color_space) as specified, + and sets other color-space-dependent parameters appropriately. See + "Special color spaces", below, before using this. A large number of + parameters, including all per-component parameters, are set by this + routine; if you want to twiddle individual parameters you should call + jpeg_set_colorspace() before rather than after. + +jpeg_default_colorspace (j_compress_ptr cinfo) + Selects an appropriate JPEG colorspace based on cinfo->in_color_space, + and calls jpeg_set_colorspace(). This is actually a subroutine of + jpeg_set_defaults(). It's broken out in case you want to change + just the colorspace-dependent JPEG parameters. + +jpeg_set_quality (j_compress_ptr cinfo, int quality, boolean force_baseline) + Constructs JPEG quantization tables appropriate for the indicated + quality setting. The quality value is expressed on the 0..100 scale + recommended by IJG (cjpeg's "-quality" switch uses this routine). + Note that the exact mapping from quality values to tables may change + in future IJG releases as more is learned about DCT quantization. + If the force_baseline parameter is TRUE, then the quantization table + entries are constrained to the range 1..255 for full JPEG baseline + compatibility. In the current implementation, this only makes a + difference for quality settings below 25, and it effectively prevents + very small/low quality files from being generated. The IJG decoder + is capable of reading the non-baseline files generated at low quality + settings when force_baseline is FALSE, but other decoders may not be. + +jpeg_set_linear_quality (j_compress_ptr cinfo, int scale_factor, + boolean force_baseline) + Same as jpeg_set_quality() except that the generated tables are the + sample tables given in the JPEC spec section K.1, multiplied by the + specified scale factor (which is expressed as a percentage; thus + scale_factor = 100 reproduces the spec's tables). Note that larger + scale factors give lower quality. This entry point is useful for + conforming to the Adobe PostScript DCT conventions, but we do not + recommend linear scaling as a user-visible quality scale otherwise. + force_baseline again constrains the computed table entries to 1..255. + +int jpeg_quality_scaling (int quality) + Converts a value on the IJG-recommended quality scale to a linear + scaling percentage. Note that this routine may change or go away + in future releases --- IJG may choose to adopt a scaling method that + can't be expressed as a simple scalar multiplier, in which case the + premise of this routine collapses. Caveat user. + +jpeg_default_qtables (j_compress_ptr cinfo, boolean force_baseline) + Set default quantization tables with linear q_scale_factor[] values + (see below). + +jpeg_add_quant_table (j_compress_ptr cinfo, int which_tbl, + const unsigned int *basic_table, + int scale_factor, boolean force_baseline) + Allows an arbitrary quantization table to be created. which_tbl + indicates which table slot to fill. basic_table points to an array + of 64 unsigned ints given in normal array order. These values are + multiplied by scale_factor/100 and then clamped to the range 1..65535 + (or to 1..255 if force_baseline is TRUE). + CAUTION: prior to library version 6a, jpeg_add_quant_table expected + the basic table to be given in JPEG zigzag order. If you need to + write code that works with either older or newer versions of this + routine, you must check the library version number. Something like + "#if JPEG_LIB_VERSION >= 61" is the right test. + +jpeg_simple_progression (j_compress_ptr cinfo) + Generates a default scan script for writing a progressive-JPEG file. + This is the recommended method of creating a progressive file, + unless you want to make a custom scan sequence. You must ensure that + the JPEG color space is set correctly before calling this routine. + + +Compression parameters (cinfo fields) include: + +int block_size + Set DCT block size. All N from 1 to 16 are possible. + Default is 8 (baseline format). + Larger values produce higher compression, + smaller values produce higher quality. + An exact DCT stage is possible with 1 or 2. + With the default quality of 75 and default Luminance qtable + the DCT+Quantization stage is lossless for value 1. + Note that values other than 8 require a SmartScale capable decoder, + introduced with IJG JPEG 8. Setting the block_size parameter for + compression works with version 8c and later. + +J_DCT_METHOD dct_method + Selects the algorithm used for the DCT step. Choices are: + JDCT_ISLOW: slow but accurate integer algorithm + JDCT_IFAST: faster, less accurate integer method + JDCT_FLOAT: floating-point method + JDCT_DEFAULT: default method (normally JDCT_ISLOW) + JDCT_FASTEST: fastest method (normally JDCT_IFAST) + The FLOAT method is very slightly more accurate than the ISLOW method, + but may give different results on different machines due to varying + roundoff behavior. The integer methods should give the same results + on all machines. On machines with sufficiently fast FP hardware, the + floating-point method may also be the fastest. The IFAST method is + considerably less accurate than the other two; its use is not + recommended if high quality is a concern. JDCT_DEFAULT and + JDCT_FASTEST are macros configurable by each installation. + +unsigned int scale_num, scale_denom + Scale the image by the fraction scale_num/scale_denom. Default is + 1/1, or no scaling. Currently, the supported scaling ratios are + M/N with all N from 1 to 16, where M is the destination DCT size, + which is 8 by default (see block_size parameter above). + (The library design allows for arbitrary scaling ratios but this + is not likely to be implemented any time soon.) + +J_COLOR_SPACE jpeg_color_space +int num_components + The JPEG color space and corresponding number of components; see + "Special color spaces", below, for more info. We recommend using + jpeg_set_color_space() if you want to change these. + +boolean optimize_coding + TRUE causes the compressor to compute optimal Huffman coding tables + for the image. This requires an extra pass over the data and + therefore costs a good deal of space and time. The default is + FALSE, which tells the compressor to use the supplied or default + Huffman tables. In most cases optimal tables save only a few percent + of file size compared to the default tables. Note that when this is + TRUE, you need not supply Huffman tables at all, and any you do + supply will be overwritten. + +unsigned int restart_interval +int restart_in_rows + To emit restart markers in the JPEG file, set one of these nonzero. + Set restart_interval to specify the exact interval in MCU blocks. + Set restart_in_rows to specify the interval in MCU rows. (If + restart_in_rows is not 0, then restart_interval is set after the + image width in MCUs is computed.) Defaults are zero (no restarts). + One restart marker per MCU row is often a good choice. + NOTE: the overhead of restart markers is higher in grayscale JPEG + files than in color files, and MUCH higher in progressive JPEGs. + If you use restarts, you may want to use larger intervals in those + cases. + +const jpeg_scan_info * scan_info +int num_scans + By default, scan_info is NULL; this causes the compressor to write a + single-scan sequential JPEG file. If not NULL, scan_info points to + an array of scan definition records of length num_scans. The + compressor will then write a JPEG file having one scan for each scan + definition record. This is used to generate noninterleaved or + progressive JPEG files. The library checks that the scan array + defines a valid JPEG scan sequence. (jpeg_simple_progression creates + a suitable scan definition array for progressive JPEG.) This is + discussed further under "Progressive JPEG support". + +boolean do_fancy_downsampling + If TRUE, use direct DCT scaling with DCT size > 8 for downsampling + of chroma components. + If FALSE, use only DCT size <= 8 and simple separate downsampling. + Default is TRUE. + For better image stability in multiple generation compression cycles + it is preferable that this value matches the corresponding + do_fancy_upsampling value in decompression. + +int smoothing_factor + If non-zero, the input image is smoothed; the value should be 1 for + minimal smoothing to 100 for maximum smoothing. Consult jcsample.c + for details of the smoothing algorithm. The default is zero. + +boolean write_JFIF_header + If TRUE, a JFIF APP0 marker is emitted. jpeg_set_defaults() and + jpeg_set_colorspace() set this TRUE if a JFIF-legal JPEG color space + (ie, YCbCr or grayscale) is selected, otherwise FALSE. + +UINT8 JFIF_major_version +UINT8 JFIF_minor_version + The version number to be written into the JFIF marker. + jpeg_set_defaults() initializes the version to 1.01 (major=minor=1). + You should set it to 1.02 (major=1, minor=2) if you plan to write + any JFIF 1.02 extension markers. + +UINT8 density_unit +UINT16 X_density +UINT16 Y_density + The resolution information to be written into the JFIF marker; + not used otherwise. density_unit may be 0 for unknown, + 1 for dots/inch, or 2 for dots/cm. The default values are 0,1,1 + indicating square pixels of unknown size. + +boolean write_Adobe_marker + If TRUE, an Adobe APP14 marker is emitted. jpeg_set_defaults() and + jpeg_set_colorspace() set this TRUE if JPEG color space RGB, CMYK, + or YCCK is selected, otherwise FALSE. It is generally a bad idea + to set both write_JFIF_header and write_Adobe_marker. In fact, + you probably shouldn't change the default settings at all --- the + default behavior ensures that the JPEG file's color space can be + recognized by the decoder. + +JQUANT_TBL * quant_tbl_ptrs[NUM_QUANT_TBLS] + Pointers to coefficient quantization tables, one per table slot, + or NULL if no table is defined for a slot. Usually these should + be set via one of the above helper routines; jpeg_add_quant_table() + is general enough to define any quantization table. The other + routines will set up table slot 0 for luminance quality and table + slot 1 for chrominance. + +int q_scale_factor[NUM_QUANT_TBLS] + Linear quantization scaling factors (percentage, initialized 100) + for use with jpeg_default_qtables(). + See rdswitch.c and cjpeg.c for an example of usage. + Note that the q_scale_factor[] fields are the "linear" scales, so you + have to convert from user-defined ratings via jpeg_quality_scaling(). + Here is an example code which corresponds to cjpeg -quality 90,70: + + jpeg_set_defaults(cinfo); + + /* Set luminance quality 90. */ + cinfo->q_scale_factor[0] = jpeg_quality_scaling(90); + /* Set chrominance quality 70. */ + cinfo->q_scale_factor[1] = jpeg_quality_scaling(70); + + jpeg_default_qtables(cinfo, force_baseline); + + CAUTION: You must also set 1x1 subsampling for efficient separate + color quality selection, since the default value used by library + is 2x2: + + cinfo->comp_info[0].v_samp_factor = 1; + cinfo->comp_info[0].h_samp_factor = 1; + +JHUFF_TBL * dc_huff_tbl_ptrs[NUM_HUFF_TBLS] +JHUFF_TBL * ac_huff_tbl_ptrs[NUM_HUFF_TBLS] + Pointers to Huffman coding tables, one per table slot, or NULL if + no table is defined for a slot. Slots 0 and 1 are filled with the + JPEG sample tables by jpeg_set_defaults(). If you need to allocate + more table structures, jpeg_alloc_huff_table() may be used. + Note that optimal Huffman tables can be computed for an image + by setting optimize_coding, as discussed above; there's seldom + any need to mess with providing your own Huffman tables. + + +The actual dimensions of the JPEG image that will be written to the file are +given by the following fields. These are computed from the input image +dimensions and the compression parameters by jpeg_start_compress(). You can +also call jpeg_calc_jpeg_dimensions() to obtain the values that will result +from the current parameter settings. This can be useful if you are trying +to pick a scaling ratio that will get close to a desired target size. + +JDIMENSION jpeg_width Actual dimensions of output image. +JDIMENSION jpeg_height + + +Per-component parameters are stored in the struct cinfo.comp_info[i] for +component number i. Note that components here refer to components of the +JPEG color space, *not* the source image color space. A suitably large +comp_info[] array is allocated by jpeg_set_defaults(); if you choose not +to use that routine, it's up to you to allocate the array. + +int component_id + The one-byte identifier code to be recorded in the JPEG file for + this component. For the standard color spaces, we recommend you + leave the default values alone. + +int h_samp_factor +int v_samp_factor + Horizontal and vertical sampling factors for the component; must + be 1..4 according to the JPEG standard. Note that larger sampling + factors indicate a higher-resolution component; many people find + this behavior quite unintuitive. The default values are 2,2 for + luminance components and 1,1 for chrominance components, except + for grayscale where 1,1 is used. + +int quant_tbl_no + Quantization table number for component. The default value is + 0 for luminance components and 1 for chrominance components. + +int dc_tbl_no +int ac_tbl_no + DC and AC entropy coding table numbers. The default values are + 0 for luminance components and 1 for chrominance components. + +int component_index + Must equal the component's index in comp_info[]. (Beginning in + release v6, the compressor library will fill this in automatically; + you don't have to.) + + +Decompression parameter selection +--------------------------------- + +Decompression parameter selection is somewhat simpler than compression +parameter selection, since all of the JPEG internal parameters are +recorded in the source file and need not be supplied by the application. +(Unless you are working with abbreviated files, in which case see +"Abbreviated datastreams", below.) Decompression parameters control +the postprocessing done on the image to deliver it in a format suitable +for the application's use. Many of the parameters control speed/quality +tradeoffs, in which faster decompression may be obtained at the price of +a poorer-quality image. The defaults select the highest quality (slowest) +processing. + +The following fields in the JPEG object are set by jpeg_read_header() and +may be useful to the application in choosing decompression parameters: + +JDIMENSION image_width Width and height of image +JDIMENSION image_height +int num_components Number of color components +J_COLOR_SPACE jpeg_color_space Colorspace of image +boolean saw_JFIF_marker TRUE if a JFIF APP0 marker was seen + UINT8 JFIF_major_version Version information from JFIF marker + UINT8 JFIF_minor_version + UINT8 density_unit Resolution data from JFIF marker + UINT16 X_density + UINT16 Y_density +boolean saw_Adobe_marker TRUE if an Adobe APP14 marker was seen + UINT8 Adobe_transform Color transform code from Adobe marker + +The JPEG color space, unfortunately, is something of a guess since the JPEG +standard proper does not provide a way to record it. In practice most files +adhere to the JFIF or Adobe conventions, and the decoder will recognize these +correctly. See "Special color spaces", below, for more info. + + +The decompression parameters that determine the basic properties of the +returned image are: + +J_COLOR_SPACE out_color_space + Output color space. jpeg_read_header() sets an appropriate default + based on jpeg_color_space; typically it will be RGB or grayscale. + The application can change this field to request output in a different + colorspace. For example, set it to JCS_GRAYSCALE to get grayscale + output from a color file. (This is useful for previewing: grayscale + output is faster than full color since the color components need not + be processed.) Note that not all possible color space transforms are + currently implemented; you may need to extend jdcolor.c if you want an + unusual conversion. + +unsigned int scale_num, scale_denom + Scale the image by the fraction scale_num/scale_denom. Currently, + the supported scaling ratios are M/N with all M from 1 to 16, where + N is the source DCT size, which is 8 for baseline JPEG. (The library + design allows for arbitrary scaling ratios but this is not likely + to be implemented any time soon.) The values are initialized by + jpeg_read_header() with the source DCT size. For baseline JPEG + this is 8/8. If you change only the scale_num value while leaving + the other unchanged, then this specifies the DCT scaled size to be + applied on the given input. For baseline JPEG this is equivalent + to M/8 scaling, since the source DCT size for baseline JPEG is 8. + Smaller scaling ratios permit significantly faster decoding since + fewer pixels need be processed and a simpler IDCT method can be used. + +boolean quantize_colors + If set TRUE, colormapped output will be delivered. Default is FALSE, + meaning that full-color output will be delivered. + +The next three parameters are relevant only if quantize_colors is TRUE. + +int desired_number_of_colors + Maximum number of colors to use in generating a library-supplied color + map (the actual number of colors is returned in a different field). + Default 256. Ignored when the application supplies its own color map. + +boolean two_pass_quantize + If TRUE, an extra pass over the image is made to select a custom color + map for the image. This usually looks a lot better than the one-size- + fits-all colormap that is used otherwise. Default is TRUE. Ignored + when the application supplies its own color map. + +J_DITHER_MODE dither_mode + Selects color dithering method. Supported values are: + JDITHER_NONE no dithering: fast, very low quality + JDITHER_ORDERED ordered dither: moderate speed and quality + JDITHER_FS Floyd-Steinberg dither: slow, high quality + Default is JDITHER_FS. (At present, ordered dither is implemented + only in the single-pass, standard-colormap case. If you ask for + ordered dither when two_pass_quantize is TRUE or when you supply + an external color map, you'll get F-S dithering.) + +When quantize_colors is TRUE, the target color map is described by the next +two fields. colormap is set to NULL by jpeg_read_header(). The application +can supply a color map by setting colormap non-NULL and setting +actual_number_of_colors to the map size. Otherwise, jpeg_start_decompress() +selects a suitable color map and sets these two fields itself. +[Implementation restriction: at present, an externally supplied colormap is +only accepted for 3-component output color spaces.] + +JSAMPARRAY colormap + The color map, represented as a 2-D pixel array of out_color_components + rows and actual_number_of_colors columns. Ignored if not quantizing. + CAUTION: if the JPEG library creates its own colormap, the storage + pointed to by this field is released by jpeg_finish_decompress(). + Copy the colormap somewhere else first, if you want to save it. + +int actual_number_of_colors + The number of colors in the color map. + +Additional decompression parameters that the application may set include: + +J_DCT_METHOD dct_method + Selects the algorithm used for the DCT step. Choices are the same + as described above for compression. + +boolean do_fancy_upsampling + If TRUE, use direct DCT scaling with DCT size > 8 for upsampling + of chroma components. + If FALSE, use only DCT size <= 8 and simple separate upsampling. + Default is TRUE. + For better image stability in multiple generation compression cycles + it is preferable that this value matches the corresponding + do_fancy_downsampling value in compression. + +boolean do_block_smoothing + If TRUE, interblock smoothing is applied in early stages of decoding + progressive JPEG files; if FALSE, not. Default is TRUE. Early + progression stages look "fuzzy" with smoothing, "blocky" without. + In any case, block smoothing ceases to be applied after the first few + AC coefficients are known to full accuracy, so it is relevant only + when using buffered-image mode for progressive images. + +boolean enable_1pass_quant +boolean enable_external_quant +boolean enable_2pass_quant + These are significant only in buffered-image mode, which is + described in its own section below. + + +The output image dimensions are given by the following fields. These are +computed from the source image dimensions and the decompression parameters +by jpeg_start_decompress(). You can also call jpeg_calc_output_dimensions() +to obtain the values that will result from the current parameter settings. +This can be useful if you are trying to pick a scaling ratio that will get +close to a desired target size. It's also important if you are using the +JPEG library's memory manager to allocate output buffer space, because you +are supposed to request such buffers *before* jpeg_start_decompress(). + +JDIMENSION output_width Actual dimensions of output image. +JDIMENSION output_height +int out_color_components Number of color components in out_color_space. +int output_components Number of color components returned. +int rec_outbuf_height Recommended height of scanline buffer. + +When quantizing colors, output_components is 1, indicating a single color map +index per pixel. Otherwise it equals out_color_components. The output arrays +are required to be output_width * output_components JSAMPLEs wide. + +rec_outbuf_height is the recommended minimum height (in scanlines) of the +buffer passed to jpeg_read_scanlines(). If the buffer is smaller, the +library will still work, but time will be wasted due to unnecessary data +copying. In high-quality modes, rec_outbuf_height is always 1, but some +faster, lower-quality modes set it to larger values (typically 2 to 4). +If you are going to ask for a high-speed processing mode, you may as well +go to the trouble of honoring rec_outbuf_height so as to avoid data copying. +(An output buffer larger than rec_outbuf_height lines is OK, but won't +provide any material speed improvement over that height.) + + +Special color spaces +-------------------- + +The JPEG standard itself is "color blind" and doesn't specify any particular +color space. It is customary to convert color data to a luminance/chrominance +color space before compressing, since this permits greater compression. The +existing de-facto JPEG file format standards specify YCbCr or grayscale data +(JFIF), or grayscale, RGB, YCbCr, CMYK, or YCCK (Adobe). For special +applications such as multispectral images, other color spaces can be used, +but it must be understood that such files will be unportable. + +The JPEG library can handle the most common colorspace conversions (namely +RGB <=> YCbCr and CMYK <=> YCCK). It can also deal with data of an unknown +color space, passing it through without conversion. If you deal extensively +with an unusual color space, you can easily extend the library to understand +additional color spaces and perform appropriate conversions. + +For compression, the source data's color space is specified by field +in_color_space. This is transformed to the JPEG file's color space given +by jpeg_color_space. jpeg_set_defaults() chooses a reasonable JPEG color +space depending on in_color_space, but you can override this by calling +jpeg_set_colorspace(). Of course you must select a supported transformation. +jccolor.c currently supports the following transformations: + RGB => YCbCr + RGB => GRAYSCALE + YCbCr => GRAYSCALE + CMYK => YCCK +plus the null transforms: GRAYSCALE => GRAYSCALE, RGB => RGB, +YCbCr => YCbCr, CMYK => CMYK, YCCK => YCCK, and UNKNOWN => UNKNOWN. + +The de-facto file format standards (JFIF and Adobe) specify APPn markers that +indicate the color space of the JPEG file. It is important to ensure that +these are written correctly, or omitted if the JPEG file's color space is not +one of the ones supported by the de-facto standards. jpeg_set_colorspace() +will set the compression parameters to include or omit the APPn markers +properly, so long as it is told the truth about the JPEG color space. +For example, if you are writing some random 3-component color space without +conversion, don't try to fake out the library by setting in_color_space and +jpeg_color_space to JCS_YCbCr; use JCS_UNKNOWN. You may want to write an +APPn marker of your own devising to identify the colorspace --- see "Special +markers", below. + +When told that the color space is UNKNOWN, the library will default to using +luminance-quality compression parameters for all color components. You may +well want to change these parameters. See the source code for +jpeg_set_colorspace(), in jcparam.c, for details. + +For decompression, the JPEG file's color space is given in jpeg_color_space, +and this is transformed to the output color space out_color_space. +jpeg_read_header's setting of jpeg_color_space can be relied on if the file +conforms to JFIF or Adobe conventions, but otherwise it is no better than a +guess. If you know the JPEG file's color space for certain, you can override +jpeg_read_header's guess by setting jpeg_color_space. jpeg_read_header also +selects a default output color space based on (its guess of) jpeg_color_space; +set out_color_space to override this. Again, you must select a supported +transformation. jdcolor.c currently supports + YCbCr => RGB + YCbCr => GRAYSCALE + RGB => GRAYSCALE + GRAYSCALE => RGB + YCCK => CMYK +as well as the null transforms. (Since GRAYSCALE=>RGB is provided, an +application can force grayscale JPEGs to look like color JPEGs if it only +wants to handle one case.) + +The two-pass color quantizer, jquant2.c, is specialized to handle RGB data +(it weights distances appropriately for RGB colors). You'll need to modify +the code if you want to use it for non-RGB output color spaces. Note that +jquant2.c is used to map to an application-supplied colormap as well as for +the normal two-pass colormap selection process. + +CAUTION: it appears that Adobe Photoshop writes inverted data in CMYK JPEG +files: 0 represents 100% ink coverage, rather than 0% ink as you'd expect. +This is arguably a bug in Photoshop, but if you need to work with Photoshop +CMYK files, you will have to deal with it in your application. We cannot +"fix" this in the library by inverting the data during the CMYK<=>YCCK +transform, because that would break other applications, notably Ghostscript. +Photoshop versions prior to 3.0 write EPS files containing JPEG-encoded CMYK +data in the same inverted-YCCK representation used in bare JPEG files, but +the surrounding PostScript code performs an inversion using the PS image +operator. I am told that Photoshop 3.0 will write uninverted YCCK in +EPS/JPEG files, and will omit the PS-level inversion. (But the data +polarity used in bare JPEG files will not change in 3.0.) In either case, +the JPEG library must not invert the data itself, or else Ghostscript would +read these EPS files incorrectly. + + +Error handling +-------------- + +When the default error handler is used, any error detected inside the JPEG +routines will cause a message to be printed on stderr, followed by exit(). +You can supply your own error handling routines to override this behavior +and to control the treatment of nonfatal warnings and trace/debug messages. +The file example.c illustrates the most common case, which is to have the +application regain control after an error rather than exiting. + +The JPEG library never writes any message directly; it always goes through +the error handling routines. Three classes of messages are recognized: + * Fatal errors: the library cannot continue. + * Warnings: the library can continue, but the data is corrupt, and a + damaged output image is likely to result. + * Trace/informational messages. These come with a trace level indicating + the importance of the message; you can control the verbosity of the + program by adjusting the maximum trace level that will be displayed. + +You may, if you wish, simply replace the entire JPEG error handling module +(jerror.c) with your own code. However, you can avoid code duplication by +only replacing some of the routines depending on the behavior you need. +This is accomplished by calling jpeg_std_error() as usual, but then overriding +some of the method pointers in the jpeg_error_mgr struct, as illustrated by +example.c. + +All of the error handling routines will receive a pointer to the JPEG object +(a j_common_ptr which points to either a jpeg_compress_struct or a +jpeg_decompress_struct; if you need to tell which, test the is_decompressor +field). This struct includes a pointer to the error manager struct in its +"err" field. Frequently, custom error handler routines will need to access +additional data which is not known to the JPEG library or the standard error +handler. The most convenient way to do this is to embed either the JPEG +object or the jpeg_error_mgr struct in a larger structure that contains +additional fields; then casting the passed pointer provides access to the +additional fields. Again, see example.c for one way to do it. (Beginning +with IJG version 6b, there is also a void pointer "client_data" in each +JPEG object, which the application can also use to find related data. +The library does not touch client_data at all.) + +The individual methods that you might wish to override are: + +error_exit (j_common_ptr cinfo) + Receives control for a fatal error. Information sufficient to + generate the error message has been stored in cinfo->err; call + output_message to display it. Control must NOT return to the caller; + generally this routine will exit() or longjmp() somewhere. + Typically you would override this routine to get rid of the exit() + default behavior. Note that if you continue processing, you should + clean up the JPEG object with jpeg_abort() or jpeg_destroy(). + +output_message (j_common_ptr cinfo) + Actual output of any JPEG message. Override this to send messages + somewhere other than stderr. Note that this method does not know + how to generate a message, only where to send it. + +format_message (j_common_ptr cinfo, char * buffer) + Constructs a readable error message string based on the error info + stored in cinfo->err. This method is called by output_message. Few + applications should need to override this method. One possible + reason for doing so is to implement dynamic switching of error message + language. + +emit_message (j_common_ptr cinfo, int msg_level) + Decide whether or not to emit a warning or trace message; if so, + calls output_message. The main reason for overriding this method + would be to abort on warnings. msg_level is -1 for warnings, + 0 and up for trace messages. + +Only error_exit() and emit_message() are called from the rest of the JPEG +library; the other two are internal to the error handler. + +The actual message texts are stored in an array of strings which is pointed to +by the field err->jpeg_message_table. The messages are numbered from 0 to +err->last_jpeg_message, and it is these code numbers that are used in the +JPEG library code. You could replace the message texts (for instance, with +messages in French or German) by changing the message table pointer. See +jerror.h for the default texts. CAUTION: this table will almost certainly +change or grow from one library version to the next. + +It may be useful for an application to add its own message texts that are +handled by the same mechanism. The error handler supports a second "add-on" +message table for this purpose. To define an addon table, set the pointer +err->addon_message_table and the message numbers err->first_addon_message and +err->last_addon_message. If you number the addon messages beginning at 1000 +or so, you won't have to worry about conflicts with the library's built-in +messages. See the sample applications cjpeg/djpeg for an example of using +addon messages (the addon messages are defined in cderror.h). + +Actual invocation of the error handler is done via macros defined in jerror.h: + ERREXITn(...) for fatal errors + WARNMSn(...) for corrupt-data warnings + TRACEMSn(...) for trace and informational messages. +These macros store the message code and any additional parameters into the +error handler struct, then invoke the error_exit() or emit_message() method. +The variants of each macro are for varying numbers of additional parameters. +The additional parameters are inserted into the generated message using +standard printf() format codes. + +See jerror.h and jerror.c for further details. + + +Compressed data handling (source and destination managers) +---------------------------------------------------------- + +The JPEG compression library sends its compressed data to a "destination +manager" module. The default destination manager just writes the data to a +memory buffer or to a stdio stream, but you can provide your own manager to +do something else. Similarly, the decompression library calls a "source +manager" to obtain the compressed data; you can provide your own source +manager if you want the data to come from somewhere other than a memory +buffer or a stdio stream. + +In both cases, compressed data is processed a bufferload at a time: the +destination or source manager provides a work buffer, and the library invokes +the manager only when the buffer is filled or emptied. (You could define a +one-character buffer to force the manager to be invoked for each byte, but +that would be rather inefficient.) The buffer's size and location are +controlled by the manager, not by the library. For example, the memory +source manager just makes the buffer pointer and length point to the original +data in memory. In this case the buffer-reload procedure will be invoked +only if the decompressor ran off the end of the datastream, which would +indicate an erroneous datastream. + +The work buffer is defined as an array of datatype JOCTET, which is generally +"char" or "unsigned char". On a machine where char is not exactly 8 bits +wide, you must define JOCTET as a wider data type and then modify the data +source and destination modules to transcribe the work arrays into 8-bit units +on external storage. + +A data destination manager struct contains a pointer and count defining the +next byte to write in the work buffer and the remaining free space: + + JOCTET * next_output_byte; /* => next byte to write in buffer */ + size_t free_in_buffer; /* # of byte spaces remaining in buffer */ + +The library increments the pointer and decrements the count until the buffer +is filled. The manager's empty_output_buffer method must reset the pointer +and count. The manager is expected to remember the buffer's starting address +and total size in private fields not visible to the library. + +A data destination manager provides three methods: + +init_destination (j_compress_ptr cinfo) + Initialize destination. This is called by jpeg_start_compress() + before any data is actually written. It must initialize + next_output_byte and free_in_buffer. free_in_buffer must be + initialized to a positive value. + +empty_output_buffer (j_compress_ptr cinfo) + This is called whenever the buffer has filled (free_in_buffer + reaches zero). In typical applications, it should write out the + *entire* buffer (use the saved start address and buffer length; + ignore the current state of next_output_byte and free_in_buffer). + Then reset the pointer & count to the start of the buffer, and + return TRUE indicating that the buffer has been dumped. + free_in_buffer must be set to a positive value when TRUE is + returned. A FALSE return should only be used when I/O suspension is + desired (this operating mode is discussed in the next section). + +term_destination (j_compress_ptr cinfo) + Terminate destination --- called by jpeg_finish_compress() after all + data has been written. In most applications, this must flush any + data remaining in the buffer. Use either next_output_byte or + free_in_buffer to determine how much data is in the buffer. + +term_destination() is NOT called by jpeg_abort() or jpeg_destroy(). If you +want the destination manager to be cleaned up during an abort, you must do it +yourself. + +You will also need code to create a jpeg_destination_mgr struct, fill in its +method pointers, and insert a pointer to the struct into the "dest" field of +the JPEG compression object. This can be done in-line in your setup code if +you like, but it's probably cleaner to provide a separate routine similar to +the jpeg_stdio_dest() or jpeg_mem_dest() routines of the supplied destination +managers. + +Decompression source managers follow a parallel design, but with some +additional frammishes. The source manager struct contains a pointer and count +defining the next byte to read from the work buffer and the number of bytes +remaining: + + const JOCTET * next_input_byte; /* => next byte to read from buffer */ + size_t bytes_in_buffer; /* # of bytes remaining in buffer */ + +The library increments the pointer and decrements the count until the buffer +is emptied. The manager's fill_input_buffer method must reset the pointer and +count. In most applications, the manager must remember the buffer's starting +address and total size in private fields not visible to the library. + +A data source manager provides five methods: + +init_source (j_decompress_ptr cinfo) + Initialize source. This is called by jpeg_read_header() before any + data is actually read. Unlike init_destination(), it may leave + bytes_in_buffer set to 0 (in which case a fill_input_buffer() call + will occur immediately). + +fill_input_buffer (j_decompress_ptr cinfo) + This is called whenever bytes_in_buffer has reached zero and more + data is wanted. In typical applications, it should read fresh data + into the buffer (ignoring the current state of next_input_byte and + bytes_in_buffer), reset the pointer & count to the start of the + buffer, and return TRUE indicating that the buffer has been reloaded. + It is not necessary to fill the buffer entirely, only to obtain at + least one more byte. bytes_in_buffer MUST be set to a positive value + if TRUE is returned. A FALSE return should only be used when I/O + suspension is desired (this mode is discussed in the next section). + +skip_input_data (j_decompress_ptr cinfo, long num_bytes) + Skip num_bytes worth of data. The buffer pointer and count should + be advanced over num_bytes input bytes, refilling the buffer as + needed. This is used to skip over a potentially large amount of + uninteresting data (such as an APPn marker). In some applications + it may be possible to optimize away the reading of the skipped data, + but it's not clear that being smart is worth much trouble; large + skips are uncommon. bytes_in_buffer may be zero on return. + A zero or negative skip count should be treated as a no-op. + +resync_to_restart (j_decompress_ptr cinfo, int desired) + This routine is called only when the decompressor has failed to find + a restart (RSTn) marker where one is expected. Its mission is to + find a suitable point for resuming decompression. For most + applications, we recommend that you just use the default resync + procedure, jpeg_resync_to_restart(). However, if you are able to back + up in the input data stream, or if you have a-priori knowledge about + the likely location of restart markers, you may be able to do better. + Read the read_restart_marker() and jpeg_resync_to_restart() routines + in jdmarker.c if you think you'd like to implement your own resync + procedure. + +term_source (j_decompress_ptr cinfo) + Terminate source --- called by jpeg_finish_decompress() after all + data has been read. Often a no-op. + +For both fill_input_buffer() and skip_input_data(), there is no such thing +as an EOF return. If the end of the file has been reached, the routine has +a choice of exiting via ERREXIT() or inserting fake data into the buffer. +In most cases, generating a warning message and inserting a fake EOI marker +is the best course of action --- this will allow the decompressor to output +however much of the image is there. In pathological cases, the decompressor +may swallow the EOI and again demand data ... just keep feeding it fake EOIs. +jdatasrc.c illustrates the recommended error recovery behavior. + +term_source() is NOT called by jpeg_abort() or jpeg_destroy(). If you want +the source manager to be cleaned up during an abort, you must do it yourself. + +You will also need code to create a jpeg_source_mgr struct, fill in its method +pointers, and insert a pointer to the struct into the "src" field of the JPEG +decompression object. This can be done in-line in your setup code if you +like, but it's probably cleaner to provide a separate routine similar to the +jpeg_stdio_src() or jpeg_mem_src() routines of the supplied source managers. + +For more information, consult the memory and stdio source and destination +managers in jdatasrc.c and jdatadst.c. + + +I/O suspension +-------------- + +Some applications need to use the JPEG library as an incremental memory-to- +memory filter: when the compressed data buffer is filled or emptied, they want +control to return to the outer loop, rather than expecting that the buffer can +be emptied or reloaded within the data source/destination manager subroutine. +The library supports this need by providing an "I/O suspension" mode, which we +describe in this section. + +The I/O suspension mode is not a panacea: nothing is guaranteed about the +maximum amount of time spent in any one call to the library, so it will not +eliminate response-time problems in single-threaded applications. If you +need guaranteed response time, we suggest you "bite the bullet" and implement +a real multi-tasking capability. + +To use I/O suspension, cooperation is needed between the calling application +and the data source or destination manager; you will always need a custom +source/destination manager. (Please read the previous section if you haven't +already.) The basic idea is that the empty_output_buffer() or +fill_input_buffer() routine is a no-op, merely returning FALSE to indicate +that it has done nothing. Upon seeing this, the JPEG library suspends +operation and returns to its caller. The surrounding application is +responsible for emptying or refilling the work buffer before calling the +JPEG library again. + +Compression suspension: + +For compression suspension, use an empty_output_buffer() routine that returns +FALSE; typically it will not do anything else. This will cause the +compressor to return to the caller of jpeg_write_scanlines(), with the return +value indicating that not all the supplied scanlines have been accepted. +The application must make more room in the output buffer, adjust the output +buffer pointer/count appropriately, and then call jpeg_write_scanlines() +again, pointing to the first unconsumed scanline. + +When forced to suspend, the compressor will backtrack to a convenient stopping +point (usually the start of the current MCU); it will regenerate some output +data when restarted. Therefore, although empty_output_buffer() is only +called when the buffer is filled, you should NOT write out the entire buffer +after a suspension. Write only the data up to the current position of +next_output_byte/free_in_buffer. The data beyond that point will be +regenerated after resumption. + +Because of the backtracking behavior, a good-size output buffer is essential +for efficiency; you don't want the compressor to suspend often. (In fact, an +overly small buffer could lead to infinite looping, if a single MCU required +more data than would fit in the buffer.) We recommend a buffer of at least +several Kbytes. You may want to insert explicit code to ensure that you don't +call jpeg_write_scanlines() unless there is a reasonable amount of space in +the output buffer; in other words, flush the buffer before trying to compress +more data. + +The compressor does not allow suspension while it is trying to write JPEG +markers at the beginning and end of the file. This means that: + * At the beginning of a compression operation, there must be enough free + space in the output buffer to hold the header markers (typically 600 or + so bytes). The recommended buffer size is bigger than this anyway, so + this is not a problem as long as you start with an empty buffer. However, + this restriction might catch you if you insert large special markers, such + as a JFIF thumbnail image, without flushing the buffer afterwards. + * When you call jpeg_finish_compress(), there must be enough space in the + output buffer to emit any buffered data and the final EOI marker. In the + current implementation, half a dozen bytes should suffice for this, but + for safety's sake we recommend ensuring that at least 100 bytes are free + before calling jpeg_finish_compress(). + +A more significant restriction is that jpeg_finish_compress() cannot suspend. +This means you cannot use suspension with multi-pass operating modes, namely +Huffman code optimization and multiple-scan output. Those modes write the +whole file during jpeg_finish_compress(), which will certainly result in +buffer overrun. (Note that this restriction applies only to compression, +not decompression. The decompressor supports input suspension in all of its +operating modes.) + +Decompression suspension: + +For decompression suspension, use a fill_input_buffer() routine that simply +returns FALSE (except perhaps during error recovery, as discussed below). +This will cause the decompressor to return to its caller with an indication +that suspension has occurred. This can happen at four places: + * jpeg_read_header(): will return JPEG_SUSPENDED. + * jpeg_start_decompress(): will return FALSE, rather than its usual TRUE. + * jpeg_read_scanlines(): will return the number of scanlines already + completed (possibly 0). + * jpeg_finish_decompress(): will return FALSE, rather than its usual TRUE. +The surrounding application must recognize these cases, load more data into +the input buffer, and repeat the call. In the case of jpeg_read_scanlines(), +increment the passed pointers past any scanlines successfully read. + +Just as with compression, the decompressor will typically backtrack to a +convenient restart point before suspending. When fill_input_buffer() is +called, next_input_byte/bytes_in_buffer point to the current restart point, +which is where the decompressor will backtrack to if FALSE is returned. +The data beyond that position must NOT be discarded if you suspend; it needs +to be re-read upon resumption. In most implementations, you'll need to shift +this data down to the start of your work buffer and then load more data after +it. Again, this behavior means that a several-Kbyte work buffer is essential +for decent performance; furthermore, you should load a reasonable amount of +new data before resuming decompression. (If you loaded, say, only one new +byte each time around, you could waste a LOT of cycles.) + +The skip_input_data() source manager routine requires special care in a +suspension scenario. This routine is NOT granted the ability to suspend the +decompressor; it can decrement bytes_in_buffer to zero, but no more. If the +requested skip distance exceeds the amount of data currently in the input +buffer, then skip_input_data() must set bytes_in_buffer to zero and record the +additional skip distance somewhere else. The decompressor will immediately +call fill_input_buffer(), which should return FALSE, which will cause a +suspension return. The surrounding application must then arrange to discard +the recorded number of bytes before it resumes loading the input buffer. +(Yes, this design is rather baroque, but it avoids complexity in the far more +common case where a non-suspending source manager is used.) + +If the input data has been exhausted, we recommend that you emit a warning +and insert dummy EOI markers just as a non-suspending data source manager +would do. This can be handled either in the surrounding application logic or +within fill_input_buffer(); the latter is probably more efficient. If +fill_input_buffer() knows that no more data is available, it can set the +pointer/count to point to a dummy EOI marker and then return TRUE just as +though it had read more data in a non-suspending situation. + +The decompressor does not attempt to suspend within standard JPEG markers; +instead it will backtrack to the start of the marker and reprocess the whole +marker next time. Hence the input buffer must be large enough to hold the +longest standard marker in the file. Standard JPEG markers should normally +not exceed a few hundred bytes each (DHT tables are typically the longest). +We recommend at least a 2K buffer for performance reasons, which is much +larger than any correct marker is likely to be. For robustness against +damaged marker length counts, you may wish to insert a test in your +application for the case that the input buffer is completely full and yet +the decoder has suspended without consuming any data --- otherwise, if this +situation did occur, it would lead to an endless loop. (The library can't +provide this test since it has no idea whether "the buffer is full", or +even whether there is a fixed-size input buffer.) + +The input buffer would need to be 64K to allow for arbitrary COM or APPn +markers, but these are handled specially: they are either saved into allocated +memory, or skipped over by calling skip_input_data(). In the former case, +suspension is handled correctly, and in the latter case, the problem of +buffer overrun is placed on skip_input_data's shoulders, as explained above. +Note that if you provide your own marker handling routine for large markers, +you should consider how to deal with buffer overflow. + +Multiple-buffer management: + +In some applications it is desirable to store the compressed data in a linked +list of buffer areas, so as to avoid data copying. This can be handled by +having empty_output_buffer() or fill_input_buffer() set the pointer and count +to reference the next available buffer; FALSE is returned only if no more +buffers are available. Although seemingly straightforward, there is a +pitfall in this approach: the backtrack that occurs when FALSE is returned +could back up into an earlier buffer. For example, when fill_input_buffer() +is called, the current pointer & count indicate the backtrack restart point. +Since fill_input_buffer() will set the pointer and count to refer to a new +buffer, the restart position must be saved somewhere else. Suppose a second +call to fill_input_buffer() occurs in the same library call, and no +additional input data is available, so fill_input_buffer must return FALSE. +If the JPEG library has not moved the pointer/count forward in the current +buffer, then *the correct restart point is the saved position in the prior +buffer*. Prior buffers may be discarded only after the library establishes +a restart point within a later buffer. Similar remarks apply for output into +a chain of buffers. + +The library will never attempt to backtrack over a skip_input_data() call, +so any skipped data can be permanently discarded. You still have to deal +with the case of skipping not-yet-received data, however. + +It's much simpler to use only a single buffer; when fill_input_buffer() is +called, move any unconsumed data (beyond the current pointer/count) down to +the beginning of this buffer and then load new data into the remaining buffer +space. This approach requires a little more data copying but is far easier +to get right. + + +Progressive JPEG support +------------------------ + +Progressive JPEG rearranges the stored data into a series of scans of +increasing quality. In situations where a JPEG file is transmitted across a +slow communications link, a decoder can generate a low-quality image very +quickly from the first scan, then gradually improve the displayed quality as +more scans are received. The final image after all scans are complete is +identical to that of a regular (sequential) JPEG file of the same quality +setting. Progressive JPEG files are often slightly smaller than equivalent +sequential JPEG files, but the possibility of incremental display is the main +reason for using progressive JPEG. + +The IJG encoder library generates progressive JPEG files when given a +suitable "scan script" defining how to divide the data into scans. +Creation of progressive JPEG files is otherwise transparent to the encoder. +Progressive JPEG files can also be read transparently by the decoder library. +If the decoding application simply uses the library as defined above, it +will receive a final decoded image without any indication that the file was +progressive. Of course, this approach does not allow incremental display. +To perform incremental display, an application needs to use the decoder +library's "buffered-image" mode, in which it receives a decoded image +multiple times. + +Each displayed scan requires about as much work to decode as a full JPEG +image of the same size, so the decoder must be fairly fast in relation to the +data transmission rate in order to make incremental display useful. However, +it is possible to skip displaying the image and simply add the incoming bits +to the decoder's coefficient buffer. This is fast because only Huffman +decoding need be done, not IDCT, upsampling, colorspace conversion, etc. +The IJG decoder library allows the application to switch dynamically between +displaying the image and simply absorbing the incoming bits. A properly +coded application can automatically adapt the number of display passes to +suit the time available as the image is received. Also, a final +higher-quality display cycle can be performed from the buffered data after +the end of the file is reached. + +Progressive compression: + +To create a progressive JPEG file (or a multiple-scan sequential JPEG file), +set the scan_info cinfo field to point to an array of scan descriptors, and +perform compression as usual. Instead of constructing your own scan list, +you can call the jpeg_simple_progression() helper routine to create a +recommended progression sequence; this method should be used by all +applications that don't want to get involved in the nitty-gritty of +progressive scan sequence design. (If you want to provide user control of +scan sequences, you may wish to borrow the scan script reading code found +in rdswitch.c, so that you can read scan script files just like cjpeg's.) +When scan_info is not NULL, the compression library will store DCT'd data +into a buffer array as jpeg_write_scanlines() is called, and will emit all +the requested scans during jpeg_finish_compress(). This implies that +multiple-scan output cannot be created with a suspending data destination +manager, since jpeg_finish_compress() does not support suspension. We +should also note that the compressor currently forces Huffman optimization +mode when creating a progressive JPEG file, because the default Huffman +tables are unsuitable for progressive files. + +Progressive decompression: + +When buffered-image mode is not used, the decoder library will read all of +a multi-scan file during jpeg_start_decompress(), so that it can provide a +final decoded image. (Here "multi-scan" means either progressive or +multi-scan sequential.) This makes multi-scan files transparent to the +decoding application. However, existing applications that used suspending +input with version 5 of the IJG library will need to be modified to check +for a suspension return from jpeg_start_decompress(). + +To perform incremental display, an application must use the library's +buffered-image mode. This is described in the next section. + + +Buffered-image mode +------------------- + +In buffered-image mode, the library stores the partially decoded image in a +coefficient buffer, from which it can be read out as many times as desired. +This mode is typically used for incremental display of progressive JPEG files, +but it can be used with any JPEG file. Each scan of a progressive JPEG file +adds more data (more detail) to the buffered image. The application can +display in lockstep with the source file (one display pass per input scan), +or it can allow input processing to outrun display processing. By making +input and display processing run independently, it is possible for the +application to adapt progressive display to a wide range of data transmission +rates. + +The basic control flow for buffered-image decoding is + + jpeg_create_decompress() + set data source + jpeg_read_header() + set overall decompression parameters + cinfo.buffered_image = TRUE; /* select buffered-image mode */ + jpeg_start_decompress() + for (each output pass) { + adjust output decompression parameters if required + jpeg_start_output() /* start a new output pass */ + for (all scanlines in image) { + jpeg_read_scanlines() + display scanlines + } + jpeg_finish_output() /* terminate output pass */ + } + jpeg_finish_decompress() + jpeg_destroy_decompress() + +This differs from ordinary unbuffered decoding in that there is an additional +level of looping. The application can choose how many output passes to make +and how to display each pass. + +The simplest approach to displaying progressive images is to do one display +pass for each scan appearing in the input file. In this case the outer loop +condition is typically + while (! jpeg_input_complete(&cinfo)) +and the start-output call should read + jpeg_start_output(&cinfo, cinfo.input_scan_number); +The second parameter to jpeg_start_output() indicates which scan of the input +file is to be displayed; the scans are numbered starting at 1 for this +purpose. (You can use a loop counter starting at 1 if you like, but using +the library's input scan counter is easier.) The library automatically reads +data as necessary to complete each requested scan, and jpeg_finish_output() +advances to the next scan or end-of-image marker (hence input_scan_number +will be incremented by the time control arrives back at jpeg_start_output()). +With this technique, data is read from the input file only as needed, and +input and output processing run in lockstep. + +After reading the final scan and reaching the end of the input file, the +buffered image remains available; it can be read additional times by +repeating the jpeg_start_output()/jpeg_read_scanlines()/jpeg_finish_output() +sequence. For example, a useful technique is to use fast one-pass color +quantization for display passes made while the image is arriving, followed by +a final display pass using two-pass quantization for highest quality. This +is done by changing the library parameters before the final output pass. +Changing parameters between passes is discussed in detail below. + +In general the last scan of a progressive file cannot be recognized as such +until after it is read, so a post-input display pass is the best approach if +you want special processing in the final pass. + +When done with the image, be sure to call jpeg_finish_decompress() to release +the buffered image (or just use jpeg_destroy_decompress()). + +If input data arrives faster than it can be displayed, the application can +cause the library to decode input data in advance of what's needed to produce +output. This is done by calling the routine jpeg_consume_input(). +The return value is one of the following: + JPEG_REACHED_SOS: reached an SOS marker (the start of a new scan) + JPEG_REACHED_EOI: reached the EOI marker (end of image) + JPEG_ROW_COMPLETED: completed reading one MCU row of compressed data + JPEG_SCAN_COMPLETED: completed reading last MCU row of current scan + JPEG_SUSPENDED: suspended before completing any of the above +(JPEG_SUSPENDED can occur only if a suspending data source is used.) This +routine can be called at any time after initializing the JPEG object. It +reads some additional data and returns when one of the indicated significant +events occurs. (If called after the EOI marker is reached, it will +immediately return JPEG_REACHED_EOI without attempting to read more data.) + +The library's output processing will automatically call jpeg_consume_input() +whenever the output processing overtakes the input; thus, simple lockstep +display requires no direct calls to jpeg_consume_input(). But by adding +calls to jpeg_consume_input(), you can absorb data in advance of what is +being displayed. This has two benefits: + * You can limit buildup of unprocessed data in your input buffer. + * You can eliminate extra display passes by paying attention to the + state of the library's input processing. + +The first of these benefits only requires interspersing calls to +jpeg_consume_input() with your display operations and any other processing +you may be doing. To avoid wasting cycles due to backtracking, it's best to +call jpeg_consume_input() only after a hundred or so new bytes have arrived. +This is discussed further under "I/O suspension", above. (Note: the JPEG +library currently is not thread-safe. You must not call jpeg_consume_input() +from one thread of control if a different library routine is working on the +same JPEG object in another thread.) + +When input arrives fast enough that more than one new scan is available +before you start a new output pass, you may as well skip the output pass +corresponding to the completed scan. This occurs for free if you pass +cinfo.input_scan_number as the target scan number to jpeg_start_output(). +The input_scan_number field is simply the index of the scan currently being +consumed by the input processor. You can ensure that this is up-to-date by +emptying the input buffer just before calling jpeg_start_output(): call +jpeg_consume_input() repeatedly until it returns JPEG_SUSPENDED or +JPEG_REACHED_EOI. + +The target scan number passed to jpeg_start_output() is saved in the +cinfo.output_scan_number field. The library's output processing calls +jpeg_consume_input() whenever the current input scan number and row within +that scan is less than or equal to the current output scan number and row. +Thus, input processing can "get ahead" of the output processing but is not +allowed to "fall behind". You can achieve several different effects by +manipulating this interlock rule. For example, if you pass a target scan +number greater than the current input scan number, the output processor will +wait until that scan starts to arrive before producing any output. (To avoid +an infinite loop, the target scan number is automatically reset to the last +scan number when the end of image is reached. Thus, if you specify a large +target scan number, the library will just absorb the entire input file and +then perform an output pass. This is effectively the same as what +jpeg_start_decompress() does when you don't select buffered-image mode.) +When you pass a target scan number equal to the current input scan number, +the image is displayed no faster than the current input scan arrives. The +final possibility is to pass a target scan number less than the current input +scan number; this disables the input/output interlock and causes the output +processor to simply display whatever it finds in the image buffer, without +waiting for input. (However, the library will not accept a target scan +number less than one, so you can't avoid waiting for the first scan.) + +When data is arriving faster than the output display processing can advance +through the image, jpeg_consume_input() will store data into the buffered +image beyond the point at which the output processing is reading data out +again. If the input arrives fast enough, it may "wrap around" the buffer to +the point where the input is more than one whole scan ahead of the output. +If the output processing simply proceeds through its display pass without +paying attention to the input, the effect seen on-screen is that the lower +part of the image is one or more scans better in quality than the upper part. +Then, when the next output scan is started, you have a choice of what target +scan number to use. The recommended choice is to use the current input scan +number at that time, which implies that you've skipped the output scans +corresponding to the input scans that were completed while you processed the +previous output scan. In this way, the decoder automatically adapts its +speed to the arriving data, by skipping output scans as necessary to keep up +with the arriving data. + +When using this strategy, you'll want to be sure that you perform a final +output pass after receiving all the data; otherwise your last display may not +be full quality across the whole screen. So the right outer loop logic is +something like this: + do { + absorb any waiting input by calling jpeg_consume_input() + final_pass = jpeg_input_complete(&cinfo); + adjust output decompression parameters if required + jpeg_start_output(&cinfo, cinfo.input_scan_number); + ... + jpeg_finish_output() + } while (! final_pass); +rather than quitting as soon as jpeg_input_complete() returns TRUE. This +arrangement makes it simple to use higher-quality decoding parameters +for the final pass. But if you don't want to use special parameters for +the final pass, the right loop logic is like this: + for (;;) { + absorb any waiting input by calling jpeg_consume_input() + jpeg_start_output(&cinfo, cinfo.input_scan_number); + ... + jpeg_finish_output() + if (jpeg_input_complete(&cinfo) && + cinfo.input_scan_number == cinfo.output_scan_number) + break; + } +In this case you don't need to know in advance whether an output pass is to +be the last one, so it's not necessary to have reached EOF before starting +the final output pass; rather, what you want to test is whether the output +pass was performed in sync with the final input scan. This form of the loop +will avoid an extra output pass whenever the decoder is able (or nearly able) +to keep up with the incoming data. + +When the data transmission speed is high, you might begin a display pass, +then find that much or all of the file has arrived before you can complete +the pass. (You can detect this by noting the JPEG_REACHED_EOI return code +from jpeg_consume_input(), or equivalently by testing jpeg_input_complete().) +In this situation you may wish to abort the current display pass and start a +new one using the newly arrived information. To do so, just call +jpeg_finish_output() and then start a new pass with jpeg_start_output(). + +A variant strategy is to abort and restart display if more than one complete +scan arrives during an output pass; this can be detected by noting +JPEG_REACHED_SOS returns and/or examining cinfo.input_scan_number. This +idea should be employed with caution, however, since the display process +might never get to the bottom of the image before being aborted, resulting +in the lower part of the screen being several passes worse than the upper. +In most cases it's probably best to abort an output pass only if the whole +file has arrived and you want to begin the final output pass immediately. + +When receiving data across a communication link, we recommend always using +the current input scan number for the output target scan number; if a +higher-quality final pass is to be done, it should be started (aborting any +incomplete output pass) as soon as the end of file is received. However, +many other strategies are possible. For example, the application can examine +the parameters of the current input scan and decide whether to display it or +not. If the scan contains only chroma data, one might choose not to use it +as the target scan, expecting that the scan will be small and will arrive +quickly. To skip to the next scan, call jpeg_consume_input() until it +returns JPEG_REACHED_SOS or JPEG_REACHED_EOI. Or just use the next higher +number as the target scan for jpeg_start_output(); but that method doesn't +let you inspect the next scan's parameters before deciding to display it. + + +In buffered-image mode, jpeg_start_decompress() never performs input and +thus never suspends. An application that uses input suspension with +buffered-image mode must be prepared for suspension returns from these +routines: +* jpeg_start_output() performs input only if you request 2-pass quantization + and the target scan isn't fully read yet. (This is discussed below.) +* jpeg_read_scanlines(), as always, returns the number of scanlines that it + was able to produce before suspending. +* jpeg_finish_output() will read any markers following the target scan, + up to the end of the file or the SOS marker that begins another scan. + (But it reads no input if jpeg_consume_input() has already reached the + end of the file or a SOS marker beyond the target output scan.) +* jpeg_finish_decompress() will read until the end of file, and thus can + suspend if the end hasn't already been reached (as can be tested by + calling jpeg_input_complete()). +jpeg_start_output(), jpeg_finish_output(), and jpeg_finish_decompress() +all return TRUE if they completed their tasks, FALSE if they had to suspend. +In the event of a FALSE return, the application must load more input data +and repeat the call. Applications that use non-suspending data sources need +not check the return values of these three routines. + + +It is possible to change decoding parameters between output passes in the +buffered-image mode. The decoder library currently supports only very +limited changes of parameters. ONLY THE FOLLOWING parameter changes are +allowed after jpeg_start_decompress() is called: +* dct_method can be changed before each call to jpeg_start_output(). + For example, one could use a fast DCT method for early scans, changing + to a higher quality method for the final scan. +* dither_mode can be changed before each call to jpeg_start_output(); + of course this has no impact if not using color quantization. Typically + one would use ordered dither for initial passes, then switch to + Floyd-Steinberg dither for the final pass. Caution: changing dither mode + can cause more memory to be allocated by the library. Although the amount + of memory involved is not large (a scanline or so), it may cause the + initial max_memory_to_use specification to be exceeded, which in the worst + case would result in an out-of-memory failure. +* do_block_smoothing can be changed before each call to jpeg_start_output(). + This setting is relevant only when decoding a progressive JPEG image. + During the first DC-only scan, block smoothing provides a very "fuzzy" look + instead of the very "blocky" look seen without it; which is better seems a + matter of personal taste. But block smoothing is nearly always a win + during later stages, especially when decoding a successive-approximation + image: smoothing helps to hide the slight blockiness that otherwise shows + up on smooth gradients until the lowest coefficient bits are sent. +* Color quantization mode can be changed under the rules described below. + You *cannot* change between full-color and quantized output (because that + would alter the required I/O buffer sizes), but you can change which + quantization method is used. + +When generating color-quantized output, changing quantization method is a +very useful way of switching between high-speed and high-quality display. +The library allows you to change among its three quantization methods: +1. Single-pass quantization to a fixed color cube. + Selected by cinfo.two_pass_quantize = FALSE and cinfo.colormap = NULL. +2. Single-pass quantization to an application-supplied colormap. + Selected by setting cinfo.colormap to point to the colormap (the value of + two_pass_quantize is ignored); also set cinfo.actual_number_of_colors. +3. Two-pass quantization to a colormap chosen specifically for the image. + Selected by cinfo.two_pass_quantize = TRUE and cinfo.colormap = NULL. + (This is the default setting selected by jpeg_read_header, but it is + probably NOT what you want for the first pass of progressive display!) +These methods offer successively better quality and lesser speed. However, +only the first method is available for quantizing in non-RGB color spaces. + +IMPORTANT: because the different quantizer methods have very different +working-storage requirements, the library requires you to indicate which +one(s) you intend to use before you call jpeg_start_decompress(). (If we did +not require this, the max_memory_to_use setting would be a complete fiction.) +You do this by setting one or more of these three cinfo fields to TRUE: + enable_1pass_quant Fixed color cube colormap + enable_external_quant Externally-supplied colormap + enable_2pass_quant Two-pass custom colormap +All three are initialized FALSE by jpeg_read_header(). But +jpeg_start_decompress() automatically sets TRUE the one selected by the +current two_pass_quantize and colormap settings, so you only need to set the +enable flags for any other quantization methods you plan to change to later. + +After setting the enable flags correctly at jpeg_start_decompress() time, you +can change to any enabled quantization method by setting two_pass_quantize +and colormap properly just before calling jpeg_start_output(). The following +special rules apply: +1. You must explicitly set cinfo.colormap to NULL when switching to 1-pass + or 2-pass mode from a different mode, or when you want the 2-pass + quantizer to be re-run to generate a new colormap. +2. To switch to an external colormap, or to change to a different external + colormap than was used on the prior pass, you must call + jpeg_new_colormap() after setting cinfo.colormap. +NOTE: if you want to use the same colormap as was used in the prior pass, +you should not do either of these things. This will save some nontrivial +switchover costs. +(These requirements exist because cinfo.colormap will always be non-NULL +after completing a prior output pass, since both the 1-pass and 2-pass +quantizers set it to point to their output colormaps. Thus you have to +do one of these two things to notify the library that something has changed. +Yup, it's a bit klugy, but it's necessary to do it this way for backwards +compatibility.) + +Note that in buffered-image mode, the library generates any requested colormap +during jpeg_start_output(), not during jpeg_start_decompress(). + +When using two-pass quantization, jpeg_start_output() makes a pass over the +buffered image to determine the optimum color map; it therefore may take a +significant amount of time, whereas ordinarily it does little work. The +progress monitor hook is called during this pass, if defined. It is also +important to realize that if the specified target scan number is greater than +or equal to the current input scan number, jpeg_start_output() will attempt +to consume input as it makes this pass. If you use a suspending data source, +you need to check for a FALSE return from jpeg_start_output() under these +conditions. The combination of 2-pass quantization and a not-yet-fully-read +target scan is the only case in which jpeg_start_output() will consume input. + + +Application authors who support buffered-image mode may be tempted to use it +for all JPEG images, even single-scan ones. This will work, but it is +inefficient: there is no need to create an image-sized coefficient buffer for +single-scan images. Requesting buffered-image mode for such an image wastes +memory. Worse, it can cost time on large images, since the buffered data has +to be swapped out or written to a temporary file. If you are concerned about +maximum performance on baseline JPEG files, you should use buffered-image +mode only when the incoming file actually has multiple scans. This can be +tested by calling jpeg_has_multiple_scans(), which will return a correct +result at any time after jpeg_read_header() completes. + +It is also worth noting that when you use jpeg_consume_input() to let input +processing get ahead of output processing, the resulting pattern of access to +the coefficient buffer is quite nonsequential. It's best to use the memory +manager jmemnobs.c if you can (ie, if you have enough real or virtual main +memory). If not, at least make sure that max_memory_to_use is set as high as +possible. If the JPEG memory manager has to use a temporary file, you will +probably see a lot of disk traffic and poor performance. (This could be +improved with additional work on the memory manager, but we haven't gotten +around to it yet.) + +In some applications it may be convenient to use jpeg_consume_input() for all +input processing, including reading the initial markers; that is, you may +wish to call jpeg_consume_input() instead of jpeg_read_header() during +startup. This works, but note that you must check for JPEG_REACHED_SOS and +JPEG_REACHED_EOI return codes as the equivalent of jpeg_read_header's codes. +Once the first SOS marker has been reached, you must call +jpeg_start_decompress() before jpeg_consume_input() will consume more input; +it'll just keep returning JPEG_REACHED_SOS until you do. If you read a +tables-only file this way, jpeg_consume_input() will return JPEG_REACHED_EOI +without ever returning JPEG_REACHED_SOS; be sure to check for this case. +If this happens, the decompressor will not read any more input until you call +jpeg_abort() to reset it. It is OK to call jpeg_consume_input() even when not +using buffered-image mode, but in that case it's basically a no-op after the +initial markers have been read: it will just return JPEG_SUSPENDED. + + +Abbreviated datastreams and multiple images +------------------------------------------- + +A JPEG compression or decompression object can be reused to process multiple +images. This saves a small amount of time per image by eliminating the +"create" and "destroy" operations, but that isn't the real purpose of the +feature. Rather, reuse of an object provides support for abbreviated JPEG +datastreams. Object reuse can also simplify processing a series of images in +a single input or output file. This section explains these features. + +A JPEG file normally contains several hundred bytes worth of quantization +and Huffman tables. In a situation where many images will be stored or +transmitted with identical tables, this may represent an annoying overhead. +The JPEG standard therefore permits tables to be omitted. The standard +defines three classes of JPEG datastreams: + * "Interchange" datastreams contain an image and all tables needed to decode + the image. These are the usual kind of JPEG file. + * "Abbreviated image" datastreams contain an image, but are missing some or + all of the tables needed to decode that image. + * "Abbreviated table specification" (henceforth "tables-only") datastreams + contain only table specifications. +To decode an abbreviated image, it is necessary to load the missing table(s) +into the decoder beforehand. This can be accomplished by reading a separate +tables-only file. A variant scheme uses a series of images in which the first +image is an interchange (complete) datastream, while subsequent ones are +abbreviated and rely on the tables loaded by the first image. It is assumed +that once the decoder has read a table, it will remember that table until a +new definition for the same table number is encountered. + +It is the application designer's responsibility to figure out how to associate +the correct tables with an abbreviated image. While abbreviated datastreams +can be useful in a closed environment, their use is strongly discouraged in +any situation where data exchange with other applications might be needed. +Caveat designer. + +The JPEG library provides support for reading and writing any combination of +tables-only datastreams and abbreviated images. In both compression and +decompression objects, a quantization or Huffman table will be retained for +the lifetime of the object, unless it is overwritten by a new table definition. + + +To create abbreviated image datastreams, it is only necessary to tell the +compressor not to emit some or all of the tables it is using. Each +quantization and Huffman table struct contains a boolean field "sent_table", +which normally is initialized to FALSE. For each table used by the image, the +header-writing process emits the table and sets sent_table = TRUE unless it is +already TRUE. (In normal usage, this prevents outputting the same table +definition multiple times, as would otherwise occur because the chroma +components typically share tables.) Thus, setting this field to TRUE before +calling jpeg_start_compress() will prevent the table from being written at +all. + +If you want to create a "pure" abbreviated image file containing no tables, +just call "jpeg_suppress_tables(&cinfo, TRUE)" after constructing all the +tables. If you want to emit some but not all tables, you'll need to set the +individual sent_table fields directly. + +To create an abbreviated image, you must also call jpeg_start_compress() +with a second parameter of FALSE, not TRUE. Otherwise jpeg_start_compress() +will force all the sent_table fields to FALSE. (This is a safety feature to +prevent abbreviated images from being created accidentally.) + +To create a tables-only file, perform the same parameter setup that you +normally would, but instead of calling jpeg_start_compress() and so on, call +jpeg_write_tables(&cinfo). This will write an abbreviated datastream +containing only SOI, DQT and/or DHT markers, and EOI. All the quantization +and Huffman tables that are currently defined in the compression object will +be emitted unless their sent_tables flag is already TRUE, and then all the +sent_tables flags will be set TRUE. + +A sure-fire way to create matching tables-only and abbreviated image files +is to proceed as follows: + + create JPEG compression object + set JPEG parameters + set destination to tables-only file + jpeg_write_tables(&cinfo); + set destination to image file + jpeg_start_compress(&cinfo, FALSE); + write data... + jpeg_finish_compress(&cinfo); + +Since the JPEG parameters are not altered between writing the table file and +the abbreviated image file, the same tables are sure to be used. Of course, +you can repeat the jpeg_start_compress() ... jpeg_finish_compress() sequence +many times to produce many abbreviated image files matching the table file. + +You cannot suppress output of the computed Huffman tables when Huffman +optimization is selected. (If you could, there'd be no way to decode the +image...) Generally, you don't want to set optimize_coding = TRUE when +you are trying to produce abbreviated files. + +In some cases you might want to compress an image using tables which are +not stored in the application, but are defined in an interchange or +tables-only file readable by the application. This can be done by setting up +a JPEG decompression object to read the specification file, then copying the +tables into your compression object. See jpeg_copy_critical_parameters() +for an example of copying quantization tables. + + +To read abbreviated image files, you simply need to load the proper tables +into the decompression object before trying to read the abbreviated image. +If the proper tables are stored in the application program, you can just +allocate the table structs and fill in their contents directly. For example, +to load a fixed quantization table into table slot "n": + + if (cinfo.quant_tbl_ptrs[n] == NULL) + cinfo.quant_tbl_ptrs[n] = jpeg_alloc_quant_table((j_common_ptr) &cinfo); + quant_ptr = cinfo.quant_tbl_ptrs[n]; /* quant_ptr is JQUANT_TBL* */ + for (i = 0; i < 64; i++) { + /* Qtable[] is desired quantization table, in natural array order */ + quant_ptr->quantval[i] = Qtable[i]; + } + +Code to load a fixed Huffman table is typically (for AC table "n"): + + if (cinfo.ac_huff_tbl_ptrs[n] == NULL) + cinfo.ac_huff_tbl_ptrs[n] = jpeg_alloc_huff_table((j_common_ptr) &cinfo); + huff_ptr = cinfo.ac_huff_tbl_ptrs[n]; /* huff_ptr is JHUFF_TBL* */ + for (i = 1; i <= 16; i++) { + /* counts[i] is number of Huffman codes of length i bits, i=1..16 */ + huff_ptr->bits[i] = counts[i]; + } + for (i = 0; i < 256; i++) { + /* symbols[] is the list of Huffman symbols, in code-length order */ + huff_ptr->huffval[i] = symbols[i]; + } + +(Note that trying to set cinfo.quant_tbl_ptrs[n] to point directly at a +constant JQUANT_TBL object is not safe. If the incoming file happened to +contain a quantization table definition, your master table would get +overwritten! Instead allocate a working table copy and copy the master table +into it, as illustrated above. Ditto for Huffman tables, of course.) + +You might want to read the tables from a tables-only file, rather than +hard-wiring them into your application. The jpeg_read_header() call is +sufficient to read a tables-only file. You must pass a second parameter of +FALSE to indicate that you do not require an image to be present. Thus, the +typical scenario is + + create JPEG decompression object + set source to tables-only file + jpeg_read_header(&cinfo, FALSE); + set source to abbreviated image file + jpeg_read_header(&cinfo, TRUE); + set decompression parameters + jpeg_start_decompress(&cinfo); + read data... + jpeg_finish_decompress(&cinfo); + +In some cases, you may want to read a file without knowing whether it contains +an image or just tables. In that case, pass FALSE and check the return value +from jpeg_read_header(): it will be JPEG_HEADER_OK if an image was found, +JPEG_HEADER_TABLES_ONLY if only tables were found. (A third return value, +JPEG_SUSPENDED, is possible when using a suspending data source manager.) +Note that jpeg_read_header() will not complain if you read an abbreviated +image for which you haven't loaded the missing tables; the missing-table check +occurs later, in jpeg_start_decompress(). + + +It is possible to read a series of images from a single source file by +repeating the jpeg_read_header() ... jpeg_finish_decompress() sequence, +without releasing/recreating the JPEG object or the data source module. +(If you did reinitialize, any partial bufferload left in the data source +buffer at the end of one image would be discarded, causing you to lose the +start of the next image.) When you use this method, stored tables are +automatically carried forward, so some of the images can be abbreviated images +that depend on tables from earlier images. + +If you intend to write a series of images into a single destination file, +you might want to make a specialized data destination module that doesn't +flush the output buffer at term_destination() time. This would speed things +up by some trifling amount. Of course, you'd need to remember to flush the +buffer after the last image. You can make the later images be abbreviated +ones by passing FALSE to jpeg_start_compress(). + + +Special markers +--------------- + +Some applications may need to insert or extract special data in the JPEG +datastream. The JPEG standard provides marker types "COM" (comment) and +"APP0" through "APP15" (application) to hold application-specific data. +Unfortunately, the use of these markers is not specified by the standard. +COM markers are fairly widely used to hold user-supplied text. The JFIF file +format spec uses APP0 markers with specified initial strings to hold certain +data. Adobe applications use APP14 markers beginning with the string "Adobe" +for miscellaneous data. Other APPn markers are rarely seen, but might +contain almost anything. + +If you wish to store user-supplied text, we recommend you use COM markers +and place readable 7-bit ASCII text in them. Newline conventions are not +standardized --- expect to find LF (Unix style), CR/LF (DOS style), or CR +(Mac style). A robust COM reader should be able to cope with random binary +garbage, including nulls, since some applications generate COM markers +containing non-ASCII junk. (But yours should not be one of them.) + +For program-supplied data, use an APPn marker, and be sure to begin it with an +identifying string so that you can tell whether the marker is actually yours. +It's probably best to avoid using APP0 or APP14 for any private markers. +(NOTE: the upcoming SPIFF standard will use APP8 markers; we recommend you +not use APP8 markers for any private purposes, either.) + +Keep in mind that at most 65533 bytes can be put into one marker, but you +can have as many markers as you like. + +By default, the IJG compression library will write a JFIF APP0 marker if the +selected JPEG colorspace is grayscale or YCbCr, or an Adobe APP14 marker if +the selected colorspace is RGB, CMYK, or YCCK. You can disable this, but +we don't recommend it. The decompression library will recognize JFIF and +Adobe markers and will set the JPEG colorspace properly when one is found. + + +You can write special markers immediately following the datastream header by +calling jpeg_write_marker() after jpeg_start_compress() and before the first +call to jpeg_write_scanlines(). When you do this, the markers appear after +the SOI and the JFIF APP0 and Adobe APP14 markers (if written), but before +all else. Specify the marker type parameter as "JPEG_COM" for COM or +"JPEG_APP0 + n" for APPn. (Actually, jpeg_write_marker will let you write +any marker type, but we don't recommend writing any other kinds of marker.) +For example, to write a user comment string pointed to by comment_text: + jpeg_write_marker(cinfo, JPEG_COM, comment_text, strlen(comment_text)); + +If it's not convenient to store all the marker data in memory at once, +you can instead call jpeg_write_m_header() followed by multiple calls to +jpeg_write_m_byte(). If you do it this way, it's your responsibility to +call jpeg_write_m_byte() exactly the number of times given in the length +parameter to jpeg_write_m_header(). (This method lets you empty the +output buffer partway through a marker, which might be important when +using a suspending data destination module. In any case, if you are using +a suspending destination, you should flush its buffer after inserting +any special markers. See "I/O suspension".) + +Or, if you prefer to synthesize the marker byte sequence yourself, +you can just cram it straight into the data destination module. + +If you are writing JFIF 1.02 extension markers (thumbnail images), don't +forget to set cinfo.JFIF_minor_version = 2 so that the encoder will write the +correct JFIF version number in the JFIF header marker. The library's default +is to write version 1.01, but that's wrong if you insert any 1.02 extension +markers. (We could probably get away with just defaulting to 1.02, but there +used to be broken decoders that would complain about unknown minor version +numbers. To reduce compatibility risks it's safest not to write 1.02 unless +you are actually using 1.02 extensions.) + + +When reading, two methods of handling special markers are available: +1. You can ask the library to save the contents of COM and/or APPn markers +into memory, and then examine them at your leisure afterwards. +2. You can supply your own routine to process COM and/or APPn markers +on-the-fly as they are read. +The first method is simpler to use, especially if you are using a suspending +data source; writing a marker processor that copes with input suspension is +not easy (consider what happens if the marker is longer than your available +input buffer). However, the second method conserves memory since the marker +data need not be kept around after it's been processed. + +For either method, you'd normally set up marker handling after creating a +decompression object and before calling jpeg_read_header(), because the +markers of interest will typically be near the head of the file and so will +be scanned by jpeg_read_header. Once you've established a marker handling +method, it will be used for the life of that decompression object +(potentially many datastreams), unless you change it. Marker handling is +determined separately for COM markers and for each APPn marker code. + + +To save the contents of special markers in memory, call + jpeg_save_markers(cinfo, marker_code, length_limit) +where marker_code is the marker type to save, JPEG_COM or JPEG_APP0+n. +(To arrange to save all the special marker types, you need to call this +routine 17 times, for COM and APP0-APP15.) If the incoming marker is longer +than length_limit data bytes, only length_limit bytes will be saved; this +parameter allows you to avoid chewing up memory when you only need to see the +first few bytes of a potentially large marker. If you want to save all the +data, set length_limit to 0xFFFF; that is enough since marker lengths are only +16 bits. As a special case, setting length_limit to 0 prevents that marker +type from being saved at all. (That is the default behavior, in fact.) + +After jpeg_read_header() completes, you can examine the special markers by +following the cinfo->marker_list pointer chain. All the special markers in +the file appear in this list, in order of their occurrence in the file (but +omitting any markers of types you didn't ask for). Both the original data +length and the saved data length are recorded for each list entry; the latter +will not exceed length_limit for the particular marker type. Note that these +lengths exclude the marker length word, whereas the stored representation +within the JPEG file includes it. (Hence the maximum data length is really +only 65533.) + +It is possible that additional special markers appear in the file beyond the +SOS marker at which jpeg_read_header stops; if so, the marker list will be +extended during reading of the rest of the file. This is not expected to be +common, however. If you are short on memory you may want to reset the length +limit to zero for all marker types after finishing jpeg_read_header, to +ensure that the max_memory_to_use setting cannot be exceeded due to addition +of later markers. + +The marker list remains stored until you call jpeg_finish_decompress or +jpeg_abort, at which point the memory is freed and the list is set to empty. +(jpeg_destroy also releases the storage, of course.) + +Note that the library is internally interested in APP0 and APP14 markers; +if you try to set a small nonzero length limit on these types, the library +will silently force the length up to the minimum it wants. (But you can set +a zero length limit to prevent them from being saved at all.) Also, in a +16-bit environment, the maximum length limit may be constrained to less than +65533 by malloc() limitations. It is therefore best not to assume that the +effective length limit is exactly what you set it to be. + + +If you want to supply your own marker-reading routine, you do it by calling +jpeg_set_marker_processor(). A marker processor routine must have the +signature + boolean jpeg_marker_parser_method (j_decompress_ptr cinfo) +Although the marker code is not explicitly passed, the routine can find it +in cinfo->unread_marker. At the time of call, the marker proper has been +read from the data source module. The processor routine is responsible for +reading the marker length word and the remaining parameter bytes, if any. +Return TRUE to indicate success. (FALSE should be returned only if you are +using a suspending data source and it tells you to suspend. See the standard +marker processors in jdmarker.c for appropriate coding methods if you need to +use a suspending data source.) + +If you override the default APP0 or APP14 processors, it is up to you to +recognize JFIF and Adobe markers if you want colorspace recognition to occur +properly. We recommend copying and extending the default processors if you +want to do that. (A better idea is to save these marker types for later +examination by calling jpeg_save_markers(); that method doesn't interfere +with the library's own processing of these markers.) + +jpeg_set_marker_processor() and jpeg_save_markers() are mutually exclusive +--- if you call one it overrides any previous call to the other, for the +particular marker type specified. + +A simple example of an external COM processor can be found in djpeg.c. +Also, see jpegtran.c for an example of using jpeg_save_markers. + + +Raw (downsampled) image data +---------------------------- + +Some applications need to supply already-downsampled image data to the JPEG +compressor, or to receive raw downsampled data from the decompressor. The +library supports this requirement by allowing the application to write or +read raw data, bypassing the normal preprocessing or postprocessing steps. +The interface is different from the standard one and is somewhat harder to +use. If your interest is merely in bypassing color conversion, we recommend +that you use the standard interface and simply set jpeg_color_space = +in_color_space (or jpeg_color_space = out_color_space for decompression). +The mechanism described in this section is necessary only to supply or +receive downsampled image data, in which not all components have the same +dimensions. + + +To compress raw data, you must supply the data in the colorspace to be used +in the JPEG file (please read the earlier section on Special color spaces) +and downsampled to the sampling factors specified in the JPEG parameters. +You must supply the data in the format used internally by the JPEG library, +namely a JSAMPIMAGE array. This is an array of pointers to two-dimensional +arrays, each of type JSAMPARRAY. Each 2-D array holds the values for one +color component. This structure is necessary since the components are of +different sizes. If the image dimensions are not a multiple of the MCU size, +you must also pad the data correctly (usually, this is done by replicating +the last column and/or row). The data must be padded to a multiple of a DCT +block in each component: that is, each downsampled row must contain a +multiple of 8 valid samples, and there must be a multiple of 8 sample rows +for each component. (For applications such as conversion of digital TV +images, the standard image size is usually a multiple of the DCT block size, +so that no padding need actually be done.) + +The procedure for compression of raw data is basically the same as normal +compression, except that you call jpeg_write_raw_data() in place of +jpeg_write_scanlines(). Before calling jpeg_start_compress(), you must do +the following: + * Set cinfo->raw_data_in to TRUE. (It is set FALSE by jpeg_set_defaults().) + This notifies the library that you will be supplying raw data. + Furthermore, set cinfo->do_fancy_downsampling to FALSE if you want to use + real downsampled data. (It is set TRUE by jpeg_set_defaults().) + * Ensure jpeg_color_space is correct --- an explicit jpeg_set_colorspace() + call is a good idea. Note that since color conversion is bypassed, + in_color_space is ignored, except that jpeg_set_defaults() uses it to + choose the default jpeg_color_space setting. + * Ensure the sampling factors, cinfo->comp_info[i].h_samp_factor and + cinfo->comp_info[i].v_samp_factor, are correct. Since these indicate the + dimensions of the data you are supplying, it's wise to set them + explicitly, rather than assuming the library's defaults are what you want. + +To pass raw data to the library, call jpeg_write_raw_data() in place of +jpeg_write_scanlines(). The two routines work similarly except that +jpeg_write_raw_data takes a JSAMPIMAGE data array rather than JSAMPARRAY. +The scanlines count passed to and returned from jpeg_write_raw_data is +measured in terms of the component with the largest v_samp_factor. + +jpeg_write_raw_data() processes one MCU row per call, which is to say +v_samp_factor*DCTSIZE sample rows of each component. The passed num_lines +value must be at least max_v_samp_factor*DCTSIZE, and the return value will +be exactly that amount (or possibly some multiple of that amount, in future +library versions). This is true even on the last call at the bottom of the +image; don't forget to pad your data as necessary. + +The required dimensions of the supplied data can be computed for each +component as + cinfo->comp_info[i].width_in_blocks*DCTSIZE samples per row + cinfo->comp_info[i].height_in_blocks*DCTSIZE rows in image +after jpeg_start_compress() has initialized those fields. If the valid data +is smaller than this, it must be padded appropriately. For some sampling +factors and image sizes, additional dummy DCT blocks are inserted to make +the image a multiple of the MCU dimensions. The library creates such dummy +blocks itself; it does not read them from your supplied data. Therefore you +need never pad by more than DCTSIZE samples. An example may help here. +Assume 2h2v downsampling of YCbCr data, that is + cinfo->comp_info[0].h_samp_factor = 2 for Y + cinfo->comp_info[0].v_samp_factor = 2 + cinfo->comp_info[1].h_samp_factor = 1 for Cb + cinfo->comp_info[1].v_samp_factor = 1 + cinfo->comp_info[2].h_samp_factor = 1 for Cr + cinfo->comp_info[2].v_samp_factor = 1 +and suppose that the nominal image dimensions (cinfo->image_width and +cinfo->image_height) are 101x101 pixels. Then jpeg_start_compress() will +compute downsampled_width = 101 and width_in_blocks = 13 for Y, +downsampled_width = 51 and width_in_blocks = 7 for Cb and Cr (and the same +for the height fields). You must pad the Y data to at least 13*8 = 104 +columns and rows, the Cb/Cr data to at least 7*8 = 56 columns and rows. The +MCU height is max_v_samp_factor = 2 DCT rows so you must pass at least 16 +scanlines on each call to jpeg_write_raw_data(), which is to say 16 actual +sample rows of Y and 8 each of Cb and Cr. A total of 7 MCU rows are needed, +so you must pass a total of 7*16 = 112 "scanlines". The last DCT block row +of Y data is dummy, so it doesn't matter what you pass for it in the data +arrays, but the scanlines count must total up to 112 so that all of the Cb +and Cr data gets passed. + +Output suspension is supported with raw-data compression: if the data +destination module suspends, jpeg_write_raw_data() will return 0. +In this case the same data rows must be passed again on the next call. + + +Decompression with raw data output implies bypassing all postprocessing. +You must deal with the color space and sampling factors present in the +incoming file. If your application only handles, say, 2h1v YCbCr data, +you must check for and fail on other color spaces or other sampling factors. +The library will not convert to a different color space for you. + +To obtain raw data output, set cinfo->raw_data_out = TRUE before +jpeg_start_decompress() (it is set FALSE by jpeg_read_header()). Be sure to +verify that the color space and sampling factors are ones you can handle. +Furthermore, set cinfo->do_fancy_upsampling = FALSE if you want to get real +downsampled data (it is set TRUE by jpeg_read_header()). +Then call jpeg_read_raw_data() in place of jpeg_read_scanlines(). The +decompression process is otherwise the same as usual. + +jpeg_read_raw_data() returns one MCU row per call, and thus you must pass a +buffer of at least max_v_samp_factor*DCTSIZE scanlines (scanline counting is +the same as for raw-data compression). The buffer you pass must be large +enough to hold the actual data plus padding to DCT-block boundaries. As with +compression, any entirely dummy DCT blocks are not processed so you need not +allocate space for them, but the total scanline count includes them. The +above example of computing buffer dimensions for raw-data compression is +equally valid for decompression. + +Input suspension is supported with raw-data decompression: if the data source +module suspends, jpeg_read_raw_data() will return 0. You can also use +buffered-image mode to read raw data in multiple passes. + + +Really raw data: DCT coefficients +--------------------------------- + +It is possible to read or write the contents of a JPEG file as raw DCT +coefficients. This facility is mainly intended for use in lossless +transcoding between different JPEG file formats. Other possible applications +include lossless cropping of a JPEG image, lossless reassembly of a +multi-strip or multi-tile TIFF/JPEG file into a single JPEG datastream, etc. + +To read the contents of a JPEG file as DCT coefficients, open the file and do +jpeg_read_header() as usual. But instead of calling jpeg_start_decompress() +and jpeg_read_scanlines(), call jpeg_read_coefficients(). This will read the +entire image into a set of virtual coefficient-block arrays, one array per +component. The return value is a pointer to an array of virtual-array +descriptors. Each virtual array can be accessed directly using the JPEG +memory manager's access_virt_barray method (see Memory management, below, +and also read structure.txt's discussion of virtual array handling). Or, +for simple transcoding to a different JPEG file format, the array list can +just be handed directly to jpeg_write_coefficients(). + +Each block in the block arrays contains quantized coefficient values in +normal array order (not JPEG zigzag order). The block arrays contain only +DCT blocks containing real data; any entirely-dummy blocks added to fill out +interleaved MCUs at the right or bottom edges of the image are discarded +during reading and are not stored in the block arrays. (The size of each +block array can be determined from the width_in_blocks and height_in_blocks +fields of the component's comp_info entry.) This is also the data format +expected by jpeg_write_coefficients(). + +When you are done using the virtual arrays, call jpeg_finish_decompress() +to release the array storage and return the decompression object to an idle +state; or just call jpeg_destroy() if you don't need to reuse the object. + +If you use a suspending data source, jpeg_read_coefficients() will return +NULL if it is forced to suspend; a non-NULL return value indicates successful +completion. You need not test for a NULL return value when using a +non-suspending data source. + +It is also possible to call jpeg_read_coefficients() to obtain access to the +decoder's coefficient arrays during a normal decode cycle in buffered-image +mode. This frammish might be useful for progressively displaying an incoming +image and then re-encoding it without loss. To do this, decode in buffered- +image mode as discussed previously, then call jpeg_read_coefficients() after +the last jpeg_finish_output() call. The arrays will be available for your use +until you call jpeg_finish_decompress(). + + +To write the contents of a JPEG file as DCT coefficients, you must provide +the DCT coefficients stored in virtual block arrays. You can either pass +block arrays read from an input JPEG file by jpeg_read_coefficients(), or +allocate virtual arrays from the JPEG compression object and fill them +yourself. In either case, jpeg_write_coefficients() is substituted for +jpeg_start_compress() and jpeg_write_scanlines(). Thus the sequence is + * Create compression object + * Set all compression parameters as necessary + * Request virtual arrays if needed + * jpeg_write_coefficients() + * jpeg_finish_compress() + * Destroy or re-use compression object +jpeg_write_coefficients() is passed a pointer to an array of virtual block +array descriptors; the number of arrays is equal to cinfo.num_components. + +The virtual arrays need only have been requested, not realized, before +jpeg_write_coefficients() is called. A side-effect of +jpeg_write_coefficients() is to realize any virtual arrays that have been +requested from the compression object's memory manager. Thus, when obtaining +the virtual arrays from the compression object, you should fill the arrays +after calling jpeg_write_coefficients(). The data is actually written out +when you call jpeg_finish_compress(); jpeg_write_coefficients() only writes +the file header. + +When writing raw DCT coefficients, it is crucial that the JPEG quantization +tables and sampling factors match the way the data was encoded, or the +resulting file will be invalid. For transcoding from an existing JPEG file, +we recommend using jpeg_copy_critical_parameters(). This routine initializes +all the compression parameters to default values (like jpeg_set_defaults()), +then copies the critical information from a source decompression object. +The decompression object should have just been used to read the entire +JPEG input file --- that is, it should be awaiting jpeg_finish_decompress(). + +jpeg_write_coefficients() marks all tables stored in the compression object +as needing to be written to the output file (thus, it acts like +jpeg_start_compress(cinfo, TRUE)). This is for safety's sake, to avoid +emitting abbreviated JPEG files by accident. If you really want to emit an +abbreviated JPEG file, call jpeg_suppress_tables(), or set the tables' +individual sent_table flags, between calling jpeg_write_coefficients() and +jpeg_finish_compress(). + + +Progress monitoring +------------------- + +Some applications may need to regain control from the JPEG library every so +often. The typical use of this feature is to produce a percent-done bar or +other progress display. (For a simple example, see cjpeg.c or djpeg.c.) +Although you do get control back frequently during the data-transferring pass +(the jpeg_read_scanlines or jpeg_write_scanlines loop), any additional passes +will occur inside jpeg_finish_compress or jpeg_start_decompress; those +routines may take a long time to execute, and you don't get control back +until they are done. + +You can define a progress-monitor routine which will be called periodically +by the library. No guarantees are made about how often this call will occur, +so we don't recommend you use it for mouse tracking or anything like that. +At present, a call will occur once per MCU row, scanline, or sample row +group, whichever unit is convenient for the current processing mode; so the +wider the image, the longer the time between calls. During the data +transferring pass, only one call occurs per call of jpeg_read_scanlines or +jpeg_write_scanlines, so don't pass a large number of scanlines at once if +you want fine resolution in the progress count. (If you really need to use +the callback mechanism for time-critical tasks like mouse tracking, you could +insert additional calls inside some of the library's inner loops.) + +To establish a progress-monitor callback, create a struct jpeg_progress_mgr, +fill in its progress_monitor field with a pointer to your callback routine, +and set cinfo->progress to point to the struct. The callback will be called +whenever cinfo->progress is non-NULL. (This pointer is set to NULL by +jpeg_create_compress or jpeg_create_decompress; the library will not change +it thereafter. So if you allocate dynamic storage for the progress struct, +make sure it will live as long as the JPEG object does. Allocating from the +JPEG memory manager with lifetime JPOOL_PERMANENT will work nicely.) You +can use the same callback routine for both compression and decompression. + +The jpeg_progress_mgr struct contains four fields which are set by the library: + long pass_counter; /* work units completed in this pass */ + long pass_limit; /* total number of work units in this pass */ + int completed_passes; /* passes completed so far */ + int total_passes; /* total number of passes expected */ +During any one pass, pass_counter increases from 0 up to (not including) +pass_limit; the step size is usually but not necessarily 1. The pass_limit +value may change from one pass to another. The expected total number of +passes is in total_passes, and the number of passes already completed is in +completed_passes. Thus the fraction of work completed may be estimated as + completed_passes + (pass_counter/pass_limit) + -------------------------------------------- + total_passes +ignoring the fact that the passes may not be equal amounts of work. + +When decompressing, pass_limit can even change within a pass, because it +depends on the number of scans in the JPEG file, which isn't always known in +advance. The computed fraction-of-work-done may jump suddenly (if the library +discovers it has overestimated the number of scans) or even decrease (in the +opposite case). It is not wise to put great faith in the work estimate. + +When using the decompressor's buffered-image mode, the progress monitor work +estimate is likely to be completely unhelpful, because the library has no way +to know how many output passes will be demanded of it. Currently, the library +sets total_passes based on the assumption that there will be one more output +pass if the input file end hasn't yet been read (jpeg_input_complete() isn't +TRUE), but no more output passes if the file end has been reached when the +output pass is started. This means that total_passes will rise as additional +output passes are requested. If you have a way of determining the input file +size, estimating progress based on the fraction of the file that's been read +will probably be more useful than using the library's value. + + +Memory management +----------------- + +This section covers some key facts about the JPEG library's built-in memory +manager. For more info, please read structure.txt's section about the memory +manager, and consult the source code if necessary. + +All memory and temporary file allocation within the library is done via the +memory manager. If necessary, you can replace the "back end" of the memory +manager to control allocation yourself (for example, if you don't want the +library to use malloc() and free() for some reason). + +Some data is allocated "permanently" and will not be freed until the JPEG +object is destroyed. Most data is allocated "per image" and is freed by +jpeg_finish_compress, jpeg_finish_decompress, or jpeg_abort. You can call the +memory manager yourself to allocate structures that will automatically be +freed at these times. Typical code for this is + ptr = (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, size); +Use JPOOL_PERMANENT to get storage that lasts as long as the JPEG object. +Use alloc_large instead of alloc_small for anything bigger than a few Kbytes. +There are also alloc_sarray and alloc_barray routines that automatically +build 2-D sample or block arrays. + +The library's minimum space requirements to process an image depend on the +image's width, but not on its height, because the library ordinarily works +with "strip" buffers that are as wide as the image but just a few rows high. +Some operating modes (eg, two-pass color quantization) require full-image +buffers. Such buffers are treated as "virtual arrays": only the current strip +need be in memory, and the rest can be swapped out to a temporary file. + +If you use the simplest memory manager back end (jmemnobs.c), then no +temporary files are used; virtual arrays are simply malloc()'d. Images bigger +than memory can be processed only if your system supports virtual memory. +The other memory manager back ends support temporary files of various flavors +and thus work in machines without virtual memory. They may also be useful on +Unix machines if you need to process images that exceed available swap space. + +When using temporary files, the library will make the in-memory buffers for +its virtual arrays just big enough to stay within a "maximum memory" setting. +Your application can set this limit by setting cinfo->mem->max_memory_to_use +after creating the JPEG object. (Of course, there is still a minimum size for +the buffers, so the max-memory setting is effective only if it is bigger than +the minimum space needed.) If you allocate any large structures yourself, you +must allocate them before jpeg_start_compress() or jpeg_start_decompress() in +order to have them counted against the max memory limit. Also keep in mind +that space allocated with alloc_small() is ignored, on the assumption that +it's too small to be worth worrying about; so a reasonable safety margin +should be left when setting max_memory_to_use. + +If you use the jmemname.c or jmemdos.c memory manager back end, it is +important to clean up the JPEG object properly to ensure that the temporary +files get deleted. (This is especially crucial with jmemdos.c, where the +"temporary files" may be extended-memory segments; if they are not freed, +DOS will require a reboot to recover the memory.) Thus, with these memory +managers, it's a good idea to provide a signal handler that will trap any +early exit from your program. The handler should call either jpeg_abort() +or jpeg_destroy() for any active JPEG objects. A handler is not needed with +jmemnobs.c, and shouldn't be necessary with jmemansi.c or jmemmac.c either, +since the C library is supposed to take care of deleting files made with +tmpfile(). + + +Memory usage +------------ + +Working memory requirements while performing compression or decompression +depend on image dimensions, image characteristics (such as colorspace and +JPEG process), and operating mode (application-selected options). + +As of v6b, the decompressor requires: + 1. About 24K in more-or-less-fixed-size data. This varies a bit depending + on operating mode and image characteristics (particularly color vs. + grayscale), but it doesn't depend on image dimensions. + 2. Strip buffers (of size proportional to the image width) for IDCT and + upsampling results. The worst case for commonly used sampling factors + is about 34 bytes * width in pixels for a color image. A grayscale image + only needs about 8 bytes per pixel column. + 3. A full-image DCT coefficient buffer is needed to decode a multi-scan JPEG + file (including progressive JPEGs), or whenever you select buffered-image + mode. This takes 2 bytes/coefficient. At typical 2x2 sampling, that's + 3 bytes per pixel for a color image. Worst case (1x1 sampling) requires + 6 bytes/pixel. For grayscale, figure 2 bytes/pixel. + 4. To perform 2-pass color quantization, the decompressor also needs a + 128K color lookup table and a full-image pixel buffer (3 bytes/pixel). +This does not count any memory allocated by the application, such as a +buffer to hold the final output image. + +The above figures are valid for 8-bit JPEG data precision and a machine with +32-bit ints. For 12-bit JPEG data, double the size of the strip buffers and +quantization pixel buffer. The "fixed-size" data will be somewhat smaller +with 16-bit ints, larger with 64-bit ints. Also, CMYK or other unusual +color spaces will require different amounts of space. + +The full-image coefficient and pixel buffers, if needed at all, do not +have to be fully RAM resident; you can have the library use temporary +files instead when the total memory usage would exceed a limit you set. +(But if your OS supports virtual memory, it's probably better to just use +jmemnobs and let the OS do the swapping.) + +The compressor's memory requirements are similar, except that it has no need +for color quantization. Also, it needs a full-image DCT coefficient buffer +if Huffman-table optimization is asked for, even if progressive mode is not +requested. + +If you need more detailed information about memory usage in a particular +situation, you can enable the MEM_STATS code in jmemmgr.c. + + +Library compile-time options +---------------------------- + +A number of compile-time options are available by modifying jmorecfg.h. + +The JPEG standard provides for both the baseline 8-bit DCT process and +a 12-bit DCT process. The IJG code supports 12-bit JPEG if you define +BITS_IN_JSAMPLE as 12 rather than 8. Note that this causes JSAMPLE to be +larger than a char, so it affects the surrounding application's image data. +The sample applications cjpeg and djpeg can support 12-bit mode only for PPM +and GIF file formats; you must disable the other file formats to compile a +12-bit cjpeg or djpeg. (install.txt has more information about that.) +At present, a 12-bit library can handle *only* 12-bit images, not both +precisions. (If you need to include both 8- and 12-bit libraries in a single +application, you could probably do it by defining NEED_SHORT_EXTERNAL_NAMES +for just one of the copies. You'd have to access the 8-bit and 12-bit copies +from separate application source files. This is untested ... if you try it, +we'd like to hear whether it works!) + +Note that a 12-bit library always compresses in Huffman optimization mode, +in order to generate valid Huffman tables. This is necessary because our +default Huffman tables only cover 8-bit data. If you need to output 12-bit +files in one pass, you'll have to supply suitable default Huffman tables. +You may also want to supply your own DCT quantization tables; the existing +quality-scaling code has been developed for 8-bit use, and probably doesn't +generate especially good tables for 12-bit. + +The maximum number of components (color channels) in the image is determined +by MAX_COMPONENTS. The JPEG standard allows up to 255 components, but we +expect that few applications will need more than four or so. + +On machines with unusual data type sizes, you may be able to improve +performance or reduce memory space by tweaking the various typedefs in +jmorecfg.h. In particular, on some RISC CPUs, access to arrays of "short"s +is quite slow; consider trading memory for speed by making JCOEF, INT16, and +UINT16 be "int" or "unsigned int". UINT8 is also a candidate to become int. +You probably don't want to make JSAMPLE be int unless you have lots of memory +to burn. + +You can reduce the size of the library by compiling out various optional +functions. To do this, undefine xxx_SUPPORTED symbols as necessary. + +You can also save a few K by not having text error messages in the library; +the standard error message table occupies about 5Kb. This is particularly +reasonable for embedded applications where there's no good way to display +a message anyway. To do this, remove the creation of the message table +(jpeg_std_message_table[]) from jerror.c, and alter format_message to do +something reasonable without it. You could output the numeric value of the +message code number, for example. If you do this, you can also save a couple +more K by modifying the TRACEMSn() macros in jerror.h to expand to nothing; +you don't need trace capability anyway, right? + + +Portability considerations +-------------------------- + +The JPEG library has been written to be extremely portable; the sample +applications cjpeg and djpeg are slightly less so. This section summarizes +the design goals in this area. (If you encounter any bugs that cause the +library to be less portable than is claimed here, we'd appreciate hearing +about them.) + +The code works fine on ANSI C, C++, and pre-ANSI C compilers, using any of +the popular system include file setups, and some not-so-popular ones too. +See install.txt for configuration procedures. + +The code is not dependent on the exact sizes of the C data types. As +distributed, we make the assumptions that + char is at least 8 bits wide + short is at least 16 bits wide + int is at least 16 bits wide + long is at least 32 bits wide +(These are the minimum requirements of the ANSI C standard.) Wider types will +work fine, although memory may be used inefficiently if char is much larger +than 8 bits or short is much bigger than 16 bits. The code should work +equally well with 16- or 32-bit ints. + +In a system where these assumptions are not met, you may be able to make the +code work by modifying the typedefs in jmorecfg.h. However, you will probably +have difficulty if int is less than 16 bits wide, since references to plain +int abound in the code. + +char can be either signed or unsigned, although the code runs faster if an +unsigned char type is available. If char is wider than 8 bits, you will need +to redefine JOCTET and/or provide custom data source/destination managers so +that JOCTET represents exactly 8 bits of data on external storage. + +The JPEG library proper does not assume ASCII representation of characters. +But some of the image file I/O modules in cjpeg/djpeg do have ASCII +dependencies in file-header manipulation; so does cjpeg's select_file_type() +routine. + +The JPEG library does not rely heavily on the C library. In particular, C +stdio is used only by the data source/destination modules and the error +handler, all of which are application-replaceable. (cjpeg/djpeg are more +heavily dependent on stdio.) malloc and free are called only from the memory +manager "back end" module, so you can use a different memory allocator by +replacing that one file. + +The code generally assumes that C names must be unique in the first 15 +characters. However, global function names can be made unique in the +first 6 characters by defining NEED_SHORT_EXTERNAL_NAMES. + +More info about porting the code may be gleaned by reading jconfig.txt, +jmorecfg.h, and jinclude.h. + + +Notes for MS-DOS implementors +----------------------------- + +The IJG code is designed to work efficiently in 80x86 "small" or "medium" +memory models (i.e., data pointers are 16 bits unless explicitly declared +"far"; code pointers can be either size). You may be able to use small +model to compile cjpeg or djpeg by itself, but you will probably have to use +medium model for any larger application. This won't make much difference in +performance. You *will* take a noticeable performance hit if you use a +large-data memory model (perhaps 10%-25%), and you should avoid "huge" model +if at all possible. + +The JPEG library typically needs 2Kb-3Kb of stack space. It will also +malloc about 20K-30K of near heap space while executing (and lots of far +heap, but that doesn't count in this calculation). This figure will vary +depending on selected operating mode, and to a lesser extent on image size. +There is also about 5Kb-6Kb of constant data which will be allocated in the +near data segment (about 4Kb of this is the error message table). +Thus you have perhaps 20K available for other modules' static data and near +heap space before you need to go to a larger memory model. The C library's +static data will account for several K of this, but that still leaves a good +deal for your needs. (If you are tight on space, you could reduce the sizes +of the I/O buffers allocated by jdatasrc.c and jdatadst.c, say from 4K to +1K. Another possibility is to move the error message table to far memory; +this should be doable with only localized hacking on jerror.c.) + +About 2K of the near heap space is "permanent" memory that will not be +released until you destroy the JPEG object. This is only an issue if you +save a JPEG object between compression or decompression operations. + +Far data space may also be a tight resource when you are dealing with large +images. The most memory-intensive case is decompression with two-pass color +quantization, or single-pass quantization to an externally supplied color +map. This requires a 128Kb color lookup table plus strip buffers amounting +to about 40 bytes per column for typical sampling ratios (eg, about 25600 +bytes for a 640-pixel-wide image). You may not be able to process wide +images if you have large data structures of your own. + +Of course, all of these concerns vanish if you use a 32-bit flat-memory-model +compiler, such as DJGPP or Watcom C. We highly recommend flat model if you +can use it; the JPEG library is significantly faster in flat model. diff --git a/jpeg/ltmain.sh b/jpeg/ltmain.sh new file mode 100644 index 0000000..63ae69d --- /dev/null +++ b/jpeg/ltmain.sh @@ -0,0 +1,9655 @@ + +# libtool (GNU libtool) 2.4.2 +# Written by Gordon Matzigkeit , 1996 + +# Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2003, 2004, 2005, 2006, +# 2007, 2008, 2009, 2010, 2011 Free Software Foundation, Inc. +# This is free software; see the source for copying conditions. There is NO +# warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. + +# GNU Libtool is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 2 of the License, or +# (at your option) any later version. +# +# As a special exception to the GNU General Public License, +# if you distribute this file as part of a program or library that +# is built using GNU Libtool, you may include this file under the +# same distribution terms that you use for the rest of that program. +# +# GNU Libtool is distributed in the hope that it will be useful, but +# WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +# General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with GNU Libtool; see the file COPYING. If not, a copy +# can be downloaded from http://www.gnu.org/licenses/gpl.html, +# or obtained by writing to the Free Software Foundation, Inc., +# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + +# Usage: $progname [OPTION]... [MODE-ARG]... +# +# Provide generalized library-building support services. +# +# --config show all configuration variables +# --debug enable verbose shell tracing +# -n, --dry-run display commands without modifying any files +# --features display basic configuration information and exit +# --mode=MODE use operation mode MODE +# --preserve-dup-deps don't remove duplicate dependency libraries +# --quiet, --silent don't print informational messages +# --no-quiet, --no-silent +# print informational messages (default) +# --no-warn don't display warning messages +# --tag=TAG use configuration variables from tag TAG +# -v, --verbose print more informational messages than default +# --no-verbose don't print the extra informational messages +# --version print version information +# -h, --help, --help-all print short, long, or detailed help message +# +# MODE must be one of the following: +# +# clean remove files from the build directory +# compile compile a source file into a libtool object +# execute automatically set library path, then run a program +# finish complete the installation of libtool libraries +# install install libraries or executables +# link create a library or an executable +# uninstall remove libraries from an installed directory +# +# MODE-ARGS vary depending on the MODE. When passed as first option, +# `--mode=MODE' may be abbreviated as `MODE' or a unique abbreviation of that. +# Try `$progname --help --mode=MODE' for a more detailed description of MODE. +# +# When reporting a bug, please describe a test case to reproduce it and +# include the following information: +# +# host-triplet: $host +# shell: $SHELL +# compiler: $LTCC +# compiler flags: $LTCFLAGS +# linker: $LD (gnu? $with_gnu_ld) +# $progname: (GNU libtool) 2.4.2 +# automake: $automake_version +# autoconf: $autoconf_version +# +# Report bugs to . +# GNU libtool home page: . +# General help using GNU software: . + +PROGRAM=libtool +PACKAGE=libtool +VERSION=2.4.2 +TIMESTAMP="" +package_revision=1.3337 + +# Be Bourne compatible +if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then + emulate sh + NULLCMD=: + # Zsh 3.x and 4.x performs word splitting on ${1+"$@"}, which + # is contrary to our usage. Disable this feature. + alias -g '${1+"$@"}'='"$@"' + setopt NO_GLOB_SUBST +else + case `(set -o) 2>/dev/null` in *posix*) set -o posix;; esac +fi +BIN_SH=xpg4; export BIN_SH # for Tru64 +DUALCASE=1; export DUALCASE # for MKS sh + +# A function that is used when there is no print builtin or printf. +func_fallback_echo () +{ + eval 'cat <<_LTECHO_EOF +$1 +_LTECHO_EOF' +} + +# NLS nuisances: We save the old values to restore during execute mode. +lt_user_locale= +lt_safe_locale= +for lt_var in LANG LANGUAGE LC_ALL LC_CTYPE LC_COLLATE LC_MESSAGES +do + eval "if test \"\${$lt_var+set}\" = set; then + save_$lt_var=\$$lt_var + $lt_var=C + export $lt_var + lt_user_locale=\"$lt_var=\\\$save_\$lt_var; \$lt_user_locale\" + lt_safe_locale=\"$lt_var=C; \$lt_safe_locale\" + fi" +done +LC_ALL=C +LANGUAGE=C +export LANGUAGE LC_ALL + +$lt_unset CDPATH + + +# Work around backward compatibility issue on IRIX 6.5. On IRIX 6.4+, sh +# is ksh but when the shell is invoked as "sh" and the current value of +# the _XPG environment variable is not equal to 1 (one), the special +# positional parameter $0, within a function call, is the name of the +# function. +progpath="$0" + + + +: ${CP="cp -f"} +test "${ECHO+set}" = set || ECHO=${as_echo-'printf %s\n'} +: ${MAKE="make"} +: ${MKDIR="mkdir"} +: ${MV="mv -f"} +: ${RM="rm -f"} +: ${SHELL="${CONFIG_SHELL-/bin/sh}"} +: ${Xsed="$SED -e 1s/^X//"} + +# Global variables: +EXIT_SUCCESS=0 +EXIT_FAILURE=1 +EXIT_MISMATCH=63 # $? = 63 is used to indicate version mismatch to missing. +EXIT_SKIP=77 # $? = 77 is used to indicate a skipped test to automake. + +exit_status=$EXIT_SUCCESS + +# Make sure IFS has a sensible default +lt_nl=' +' +IFS=" $lt_nl" + +dirname="s,/[^/]*$,," +basename="s,^.*/,," + +# func_dirname file append nondir_replacement +# Compute the dirname of FILE. If nonempty, add APPEND to the result, +# otherwise set result to NONDIR_REPLACEMENT. +func_dirname () +{ + func_dirname_result=`$ECHO "${1}" | $SED "$dirname"` + if test "X$func_dirname_result" = "X${1}"; then + func_dirname_result="${3}" + else + func_dirname_result="$func_dirname_result${2}" + fi +} # func_dirname may be replaced by extended shell implementation + + +# func_basename file +func_basename () +{ + func_basename_result=`$ECHO "${1}" | $SED "$basename"` +} # func_basename may be replaced by extended shell implementation + + +# func_dirname_and_basename file append nondir_replacement +# perform func_basename and func_dirname in a single function +# call: +# dirname: Compute the dirname of FILE. If nonempty, +# add APPEND to the result, otherwise set result +# to NONDIR_REPLACEMENT. +# value returned in "$func_dirname_result" +# basename: Compute filename of FILE. +# value retuned in "$func_basename_result" +# Implementation must be kept synchronized with func_dirname +# and func_basename. For efficiency, we do not delegate to +# those functions but instead duplicate the functionality here. +func_dirname_and_basename () +{ + # Extract subdirectory from the argument. + func_dirname_result=`$ECHO "${1}" | $SED -e "$dirname"` + if test "X$func_dirname_result" = "X${1}"; then + func_dirname_result="${3}" + else + func_dirname_result="$func_dirname_result${2}" + fi + func_basename_result=`$ECHO "${1}" | $SED -e "$basename"` +} # func_dirname_and_basename may be replaced by extended shell implementation + + +# func_stripname prefix suffix name +# strip PREFIX and SUFFIX off of NAME. +# PREFIX and SUFFIX must not contain globbing or regex special +# characters, hashes, percent signs, but SUFFIX may contain a leading +# dot (in which case that matches only a dot). +# func_strip_suffix prefix name +func_stripname () +{ + case ${2} in + .*) func_stripname_result=`$ECHO "${3}" | $SED "s%^${1}%%; s%\\\\${2}\$%%"`;; + *) func_stripname_result=`$ECHO "${3}" | $SED "s%^${1}%%; s%${2}\$%%"`;; + esac +} # func_stripname may be replaced by extended shell implementation + + +# These SED scripts presuppose an absolute path with a trailing slash. +pathcar='s,^/\([^/]*\).*$,\1,' +pathcdr='s,^/[^/]*,,' +removedotparts=':dotsl + s@/\./@/@g + t dotsl + s,/\.$,/,' +collapseslashes='s@/\{1,\}@/@g' +finalslash='s,/*$,/,' + +# func_normal_abspath PATH +# Remove doubled-up and trailing slashes, "." path components, +# and cancel out any ".." path components in PATH after making +# it an absolute path. +# value returned in "$func_normal_abspath_result" +func_normal_abspath () +{ + # Start from root dir and reassemble the path. + func_normal_abspath_result= + func_normal_abspath_tpath=$1 + func_normal_abspath_altnamespace= + case $func_normal_abspath_tpath in + "") + # Empty path, that just means $cwd. + func_stripname '' '/' "`pwd`" + func_normal_abspath_result=$func_stripname_result + return + ;; + # The next three entries are used to spot a run of precisely + # two leading slashes without using negated character classes; + # we take advantage of case's first-match behaviour. + ///*) + # Unusual form of absolute path, do nothing. + ;; + //*) + # Not necessarily an ordinary path; POSIX reserves leading '//' + # and for example Cygwin uses it to access remote file shares + # over CIFS/SMB, so we conserve a leading double slash if found. + func_normal_abspath_altnamespace=/ + ;; + /*) + # Absolute path, do nothing. + ;; + *) + # Relative path, prepend $cwd. + func_normal_abspath_tpath=`pwd`/$func_normal_abspath_tpath + ;; + esac + # Cancel out all the simple stuff to save iterations. We also want + # the path to end with a slash for ease of parsing, so make sure + # there is one (and only one) here. + func_normal_abspath_tpath=`$ECHO "$func_normal_abspath_tpath" | $SED \ + -e "$removedotparts" -e "$collapseslashes" -e "$finalslash"` + while :; do + # Processed it all yet? + if test "$func_normal_abspath_tpath" = / ; then + # If we ascended to the root using ".." the result may be empty now. + if test -z "$func_normal_abspath_result" ; then + func_normal_abspath_result=/ + fi + break + fi + func_normal_abspath_tcomponent=`$ECHO "$func_normal_abspath_tpath" | $SED \ + -e "$pathcar"` + func_normal_abspath_tpath=`$ECHO "$func_normal_abspath_tpath" | $SED \ + -e "$pathcdr"` + # Figure out what to do with it + case $func_normal_abspath_tcomponent in + "") + # Trailing empty path component, ignore it. + ;; + ..) + # Parent dir; strip last assembled component from result. + func_dirname "$func_normal_abspath_result" + func_normal_abspath_result=$func_dirname_result + ;; + *) + # Actual path component, append it. + func_normal_abspath_result=$func_normal_abspath_result/$func_normal_abspath_tcomponent + ;; + esac + done + # Restore leading double-slash if one was found on entry. + func_normal_abspath_result=$func_normal_abspath_altnamespace$func_normal_abspath_result +} + +# func_relative_path SRCDIR DSTDIR +# generates a relative path from SRCDIR to DSTDIR, with a trailing +# slash if non-empty, suitable for immediately appending a filename +# without needing to append a separator. +# value returned in "$func_relative_path_result" +func_relative_path () +{ + func_relative_path_result= + func_normal_abspath "$1" + func_relative_path_tlibdir=$func_normal_abspath_result + func_normal_abspath "$2" + func_relative_path_tbindir=$func_normal_abspath_result + + # Ascend the tree starting from libdir + while :; do + # check if we have found a prefix of bindir + case $func_relative_path_tbindir in + $func_relative_path_tlibdir) + # found an exact match + func_relative_path_tcancelled= + break + ;; + $func_relative_path_tlibdir*) + # found a matching prefix + func_stripname "$func_relative_path_tlibdir" '' "$func_relative_path_tbindir" + func_relative_path_tcancelled=$func_stripname_result + if test -z "$func_relative_path_result"; then + func_relative_path_result=. + fi + break + ;; + *) + func_dirname $func_relative_path_tlibdir + func_relative_path_tlibdir=${func_dirname_result} + if test "x$func_relative_path_tlibdir" = x ; then + # Have to descend all the way to the root! + func_relative_path_result=../$func_relative_path_result + func_relative_path_tcancelled=$func_relative_path_tbindir + break + fi + func_relative_path_result=../$func_relative_path_result + ;; + esac + done + + # Now calculate path; take care to avoid doubling-up slashes. + func_stripname '' '/' "$func_relative_path_result" + func_relative_path_result=$func_stripname_result + func_stripname '/' '/' "$func_relative_path_tcancelled" + if test "x$func_stripname_result" != x ; then + func_relative_path_result=${func_relative_path_result}/${func_stripname_result} + fi + + # Normalisation. If bindir is libdir, return empty string, + # else relative path ending with a slash; either way, target + # file name can be directly appended. + if test ! -z "$func_relative_path_result"; then + func_stripname './' '' "$func_relative_path_result/" + func_relative_path_result=$func_stripname_result + fi +} + +# The name of this program: +func_dirname_and_basename "$progpath" +progname=$func_basename_result + +# Make sure we have an absolute path for reexecution: +case $progpath in + [\\/]*|[A-Za-z]:\\*) ;; + *[\\/]*) + progdir=$func_dirname_result + progdir=`cd "$progdir" && pwd` + progpath="$progdir/$progname" + ;; + *) + save_IFS="$IFS" + IFS=${PATH_SEPARATOR-:} + for progdir in $PATH; do + IFS="$save_IFS" + test -x "$progdir/$progname" && break + done + IFS="$save_IFS" + test -n "$progdir" || progdir=`pwd` + progpath="$progdir/$progname" + ;; +esac + +# Sed substitution that helps us do robust quoting. It backslashifies +# metacharacters that are still active within double-quoted strings. +Xsed="${SED}"' -e 1s/^X//' +sed_quote_subst='s/\([`"$\\]\)/\\\1/g' + +# Same as above, but do not quote variable references. +double_quote_subst='s/\(["`\\]\)/\\\1/g' + +# Sed substitution that turns a string into a regex matching for the +# string literally. +sed_make_literal_regex='s,[].[^$\\*\/],\\&,g' + +# Sed substitution that converts a w32 file name or path +# which contains forward slashes, into one that contains +# (escaped) backslashes. A very naive implementation. +lt_sed_naive_backslashify='s|\\\\*|\\|g;s|/|\\|g;s|\\|\\\\|g' + +# Re-`\' parameter expansions in output of double_quote_subst that were +# `\'-ed in input to the same. If an odd number of `\' preceded a '$' +# in input to double_quote_subst, that '$' was protected from expansion. +# Since each input `\' is now two `\'s, look for any number of runs of +# four `\'s followed by two `\'s and then a '$'. `\' that '$'. +bs='\\' +bs2='\\\\' +bs4='\\\\\\\\' +dollar='\$' +sed_double_backslash="\ + s/$bs4/&\\ +/g + s/^$bs2$dollar/$bs&/ + s/\\([^$bs]\\)$bs2$dollar/\\1$bs2$bs$dollar/g + s/\n//g" + +# Standard options: +opt_dry_run=false +opt_help=false +opt_quiet=false +opt_verbose=false +opt_warning=: + +# func_echo arg... +# Echo program name prefixed message, along with the current mode +# name if it has been set yet. +func_echo () +{ + $ECHO "$progname: ${opt_mode+$opt_mode: }$*" +} + +# func_verbose arg... +# Echo program name prefixed message in verbose mode only. +func_verbose () +{ + $opt_verbose && func_echo ${1+"$@"} + + # A bug in bash halts the script if the last line of a function + # fails when set -e is in force, so we need another command to + # work around that: + : +} + +# func_echo_all arg... +# Invoke $ECHO with all args, space-separated. +func_echo_all () +{ + $ECHO "$*" +} + +# func_error arg... +# Echo program name prefixed message to standard error. +func_error () +{ + $ECHO "$progname: ${opt_mode+$opt_mode: }"${1+"$@"} 1>&2 +} + +# func_warning arg... +# Echo program name prefixed warning message to standard error. +func_warning () +{ + $opt_warning && $ECHO "$progname: ${opt_mode+$opt_mode: }warning: "${1+"$@"} 1>&2 + + # bash bug again: + : +} + +# func_fatal_error arg... +# Echo program name prefixed message to standard error, and exit. +func_fatal_error () +{ + func_error ${1+"$@"} + exit $EXIT_FAILURE +} + +# func_fatal_help arg... +# Echo program name prefixed message to standard error, followed by +# a help hint, and exit. +func_fatal_help () +{ + func_error ${1+"$@"} + func_fatal_error "$help" +} +help="Try \`$progname --help' for more information." ## default + + +# func_grep expression filename +# Check whether EXPRESSION matches any line of FILENAME, without output. +func_grep () +{ + $GREP "$1" "$2" >/dev/null 2>&1 +} + + +# func_mkdir_p directory-path +# Make sure the entire path to DIRECTORY-PATH is available. +func_mkdir_p () +{ + my_directory_path="$1" + my_dir_list= + + if test -n "$my_directory_path" && test "$opt_dry_run" != ":"; then + + # Protect directory names starting with `-' + case $my_directory_path in + -*) my_directory_path="./$my_directory_path" ;; + esac + + # While some portion of DIR does not yet exist... + while test ! -d "$my_directory_path"; do + # ...make a list in topmost first order. Use a colon delimited + # list incase some portion of path contains whitespace. + my_dir_list="$my_directory_path:$my_dir_list" + + # If the last portion added has no slash in it, the list is done + case $my_directory_path in */*) ;; *) break ;; esac + + # ...otherwise throw away the child directory and loop + my_directory_path=`$ECHO "$my_directory_path" | $SED -e "$dirname"` + done + my_dir_list=`$ECHO "$my_dir_list" | $SED 's,:*$,,'` + + save_mkdir_p_IFS="$IFS"; IFS=':' + for my_dir in $my_dir_list; do + IFS="$save_mkdir_p_IFS" + # mkdir can fail with a `File exist' error if two processes + # try to create one of the directories concurrently. Don't + # stop in that case! + $MKDIR "$my_dir" 2>/dev/null || : + done + IFS="$save_mkdir_p_IFS" + + # Bail out if we (or some other process) failed to create a directory. + test -d "$my_directory_path" || \ + func_fatal_error "Failed to create \`$1'" + fi +} + + +# func_mktempdir [string] +# Make a temporary directory that won't clash with other running +# libtool processes, and avoids race conditions if possible. If +# given, STRING is the basename for that directory. +func_mktempdir () +{ + my_template="${TMPDIR-/tmp}/${1-$progname}" + + if test "$opt_dry_run" = ":"; then + # Return a directory name, but don't create it in dry-run mode + my_tmpdir="${my_template}-$$" + else + + # If mktemp works, use that first and foremost + my_tmpdir=`mktemp -d "${my_template}-XXXXXXXX" 2>/dev/null` + + if test ! -d "$my_tmpdir"; then + # Failing that, at least try and use $RANDOM to avoid a race + my_tmpdir="${my_template}-${RANDOM-0}$$" + + save_mktempdir_umask=`umask` + umask 0077 + $MKDIR "$my_tmpdir" + umask $save_mktempdir_umask + fi + + # If we're not in dry-run mode, bomb out on failure + test -d "$my_tmpdir" || \ + func_fatal_error "cannot create temporary directory \`$my_tmpdir'" + fi + + $ECHO "$my_tmpdir" +} + + +# func_quote_for_eval arg +# Aesthetically quote ARG to be evaled later. +# This function returns two values: FUNC_QUOTE_FOR_EVAL_RESULT +# is double-quoted, suitable for a subsequent eval, whereas +# FUNC_QUOTE_FOR_EVAL_UNQUOTED_RESULT has merely all characters +# which are still active within double quotes backslashified. +func_quote_for_eval () +{ + case $1 in + *[\\\`\"\$]*) + func_quote_for_eval_unquoted_result=`$ECHO "$1" | $SED "$sed_quote_subst"` ;; + *) + func_quote_for_eval_unquoted_result="$1" ;; + esac + + case $func_quote_for_eval_unquoted_result in + # Double-quote args containing shell metacharacters to delay + # word splitting, command substitution and and variable + # expansion for a subsequent eval. + # Many Bourne shells cannot handle close brackets correctly + # in scan sets, so we specify it separately. + *[\[\~\#\^\&\*\(\)\{\}\|\;\<\>\?\'\ \ ]*|*]*|"") + func_quote_for_eval_result="\"$func_quote_for_eval_unquoted_result\"" + ;; + *) + func_quote_for_eval_result="$func_quote_for_eval_unquoted_result" + esac +} + + +# func_quote_for_expand arg +# Aesthetically quote ARG to be evaled later; same as above, +# but do not quote variable references. +func_quote_for_expand () +{ + case $1 in + *[\\\`\"]*) + my_arg=`$ECHO "$1" | $SED \ + -e "$double_quote_subst" -e "$sed_double_backslash"` ;; + *) + my_arg="$1" ;; + esac + + case $my_arg in + # Double-quote args containing shell metacharacters to delay + # word splitting and command substitution for a subsequent eval. + # Many Bourne shells cannot handle close brackets correctly + # in scan sets, so we specify it separately. + *[\[\~\#\^\&\*\(\)\{\}\|\;\<\>\?\'\ \ ]*|*]*|"") + my_arg="\"$my_arg\"" + ;; + esac + + func_quote_for_expand_result="$my_arg" +} + + +# func_show_eval cmd [fail_exp] +# Unless opt_silent is true, then output CMD. Then, if opt_dryrun is +# not true, evaluate CMD. If the evaluation of CMD fails, and FAIL_EXP +# is given, then evaluate it. +func_show_eval () +{ + my_cmd="$1" + my_fail_exp="${2-:}" + + ${opt_silent-false} || { + func_quote_for_expand "$my_cmd" + eval "func_echo $func_quote_for_expand_result" + } + + if ${opt_dry_run-false}; then :; else + eval "$my_cmd" + my_status=$? + if test "$my_status" -eq 0; then :; else + eval "(exit $my_status); $my_fail_exp" + fi + fi +} + + +# func_show_eval_locale cmd [fail_exp] +# Unless opt_silent is true, then output CMD. Then, if opt_dryrun is +# not true, evaluate CMD. If the evaluation of CMD fails, and FAIL_EXP +# is given, then evaluate it. Use the saved locale for evaluation. +func_show_eval_locale () +{ + my_cmd="$1" + my_fail_exp="${2-:}" + + ${opt_silent-false} || { + func_quote_for_expand "$my_cmd" + eval "func_echo $func_quote_for_expand_result" + } + + if ${opt_dry_run-false}; then :; else + eval "$lt_user_locale + $my_cmd" + my_status=$? + eval "$lt_safe_locale" + if test "$my_status" -eq 0; then :; else + eval "(exit $my_status); $my_fail_exp" + fi + fi +} + +# func_tr_sh +# Turn $1 into a string suitable for a shell variable name. +# Result is stored in $func_tr_sh_result. All characters +# not in the set a-zA-Z0-9_ are replaced with '_'. Further, +# if $1 begins with a digit, a '_' is prepended as well. +func_tr_sh () +{ + case $1 in + [0-9]* | *[!a-zA-Z0-9_]*) + func_tr_sh_result=`$ECHO "$1" | $SED 's/^\([0-9]\)/_\1/; s/[^a-zA-Z0-9_]/_/g'` + ;; + * ) + func_tr_sh_result=$1 + ;; + esac +} + + +# func_version +# Echo version message to standard output and exit. +func_version () +{ + $opt_debug + + $SED -n '/(C)/!b go + :more + /\./!{ + N + s/\n# / / + b more + } + :go + /^# '$PROGRAM' (GNU /,/# warranty; / { + s/^# // + s/^# *$// + s/\((C)\)[ 0-9,-]*\( [1-9][0-9]*\)/\1\2/ + p + }' < "$progpath" + exit $? +} + +# func_usage +# Echo short help message to standard output and exit. +func_usage () +{ + $opt_debug + + $SED -n '/^# Usage:/,/^# *.*--help/ { + s/^# // + s/^# *$// + s/\$progname/'$progname'/ + p + }' < "$progpath" + echo + $ECHO "run \`$progname --help | more' for full usage" + exit $? +} + +# func_help [NOEXIT] +# Echo long help message to standard output and exit, +# unless 'noexit' is passed as argument. +func_help () +{ + $opt_debug + + $SED -n '/^# Usage:/,/# Report bugs to/ { + :print + s/^# // + s/^# *$// + s*\$progname*'$progname'* + s*\$host*'"$host"'* + s*\$SHELL*'"$SHELL"'* + s*\$LTCC*'"$LTCC"'* + s*\$LTCFLAGS*'"$LTCFLAGS"'* + s*\$LD*'"$LD"'* + s/\$with_gnu_ld/'"$with_gnu_ld"'/ + s/\$automake_version/'"`(${AUTOMAKE-automake} --version) 2>/dev/null |$SED 1q`"'/ + s/\$autoconf_version/'"`(${AUTOCONF-autoconf} --version) 2>/dev/null |$SED 1q`"'/ + p + d + } + /^# .* home page:/b print + /^# General help using/b print + ' < "$progpath" + ret=$? + if test -z "$1"; then + exit $ret + fi +} + +# func_missing_arg argname +# Echo program name prefixed message to standard error and set global +# exit_cmd. +func_missing_arg () +{ + $opt_debug + + func_error "missing argument for $1." + exit_cmd=exit +} + + +# func_split_short_opt shortopt +# Set func_split_short_opt_name and func_split_short_opt_arg shell +# variables after splitting SHORTOPT after the 2nd character. +func_split_short_opt () +{ + my_sed_short_opt='1s/^\(..\).*$/\1/;q' + my_sed_short_rest='1s/^..\(.*\)$/\1/;q' + + func_split_short_opt_name=`$ECHO "$1" | $SED "$my_sed_short_opt"` + func_split_short_opt_arg=`$ECHO "$1" | $SED "$my_sed_short_rest"` +} # func_split_short_opt may be replaced by extended shell implementation + + +# func_split_long_opt longopt +# Set func_split_long_opt_name and func_split_long_opt_arg shell +# variables after splitting LONGOPT at the `=' sign. +func_split_long_opt () +{ + my_sed_long_opt='1s/^\(--[^=]*\)=.*/\1/;q' + my_sed_long_arg='1s/^--[^=]*=//' + + func_split_long_opt_name=`$ECHO "$1" | $SED "$my_sed_long_opt"` + func_split_long_opt_arg=`$ECHO "$1" | $SED "$my_sed_long_arg"` +} # func_split_long_opt may be replaced by extended shell implementation + +exit_cmd=: + + + + + +magic="%%%MAGIC variable%%%" +magic_exe="%%%MAGIC EXE variable%%%" + +# Global variables. +nonopt= +preserve_args= +lo2o="s/\\.lo\$/.${objext}/" +o2lo="s/\\.${objext}\$/.lo/" +extracted_archives= +extracted_serial=0 + +# If this variable is set in any of the actions, the command in it +# will be execed at the end. This prevents here-documents from being +# left over by shells. +exec_cmd= + +# func_append var value +# Append VALUE to the end of shell variable VAR. +func_append () +{ + eval "${1}=\$${1}\${2}" +} # func_append may be replaced by extended shell implementation + +# func_append_quoted var value +# Quote VALUE and append to the end of shell variable VAR, separated +# by a space. +func_append_quoted () +{ + func_quote_for_eval "${2}" + eval "${1}=\$${1}\\ \$func_quote_for_eval_result" +} # func_append_quoted may be replaced by extended shell implementation + + +# func_arith arithmetic-term... +func_arith () +{ + func_arith_result=`expr "${@}"` +} # func_arith may be replaced by extended shell implementation + + +# func_len string +# STRING may not start with a hyphen. +func_len () +{ + func_len_result=`expr "${1}" : ".*" 2>/dev/null || echo $max_cmd_len` +} # func_len may be replaced by extended shell implementation + + +# func_lo2o object +func_lo2o () +{ + func_lo2o_result=`$ECHO "${1}" | $SED "$lo2o"` +} # func_lo2o may be replaced by extended shell implementation + + +# func_xform libobj-or-source +func_xform () +{ + func_xform_result=`$ECHO "${1}" | $SED 's/\.[^.]*$/.lo/'` +} # func_xform may be replaced by extended shell implementation + + +# func_fatal_configuration arg... +# Echo program name prefixed message to standard error, followed by +# a configuration failure hint, and exit. +func_fatal_configuration () +{ + func_error ${1+"$@"} + func_error "See the $PACKAGE documentation for more information." + func_fatal_error "Fatal configuration error." +} + + +# func_config +# Display the configuration for all the tags in this script. +func_config () +{ + re_begincf='^# ### BEGIN LIBTOOL' + re_endcf='^# ### END LIBTOOL' + + # Default configuration. + $SED "1,/$re_begincf CONFIG/d;/$re_endcf CONFIG/,\$d" < "$progpath" + + # Now print the configurations for the tags. + for tagname in $taglist; do + $SED -n "/$re_begincf TAG CONFIG: $tagname\$/,/$re_endcf TAG CONFIG: $tagname\$/p" < "$progpath" + done + + exit $? +} + +# func_features +# Display the features supported by this script. +func_features () +{ + echo "host: $host" + if test "$build_libtool_libs" = yes; then + echo "enable shared libraries" + else + echo "disable shared libraries" + fi + if test "$build_old_libs" = yes; then + echo "enable static libraries" + else + echo "disable static libraries" + fi + + exit $? +} + +# func_enable_tag tagname +# Verify that TAGNAME is valid, and either flag an error and exit, or +# enable the TAGNAME tag. We also add TAGNAME to the global $taglist +# variable here. +func_enable_tag () +{ + # Global variable: + tagname="$1" + + re_begincf="^# ### BEGIN LIBTOOL TAG CONFIG: $tagname\$" + re_endcf="^# ### END LIBTOOL TAG CONFIG: $tagname\$" + sed_extractcf="/$re_begincf/,/$re_endcf/p" + + # Validate tagname. + case $tagname in + *[!-_A-Za-z0-9,/]*) + func_fatal_error "invalid tag name: $tagname" + ;; + esac + + # Don't test for the "default" C tag, as we know it's + # there but not specially marked. + case $tagname in + CC) ;; + *) + if $GREP "$re_begincf" "$progpath" >/dev/null 2>&1; then + taglist="$taglist $tagname" + + # Evaluate the configuration. Be careful to quote the path + # and the sed script, to avoid splitting on whitespace, but + # also don't use non-portable quotes within backquotes within + # quotes we have to do it in 2 steps: + extractedcf=`$SED -n -e "$sed_extractcf" < "$progpath"` + eval "$extractedcf" + else + func_error "ignoring unknown tag $tagname" + fi + ;; + esac +} + +# func_check_version_match +# Ensure that we are using m4 macros, and libtool script from the same +# release of libtool. +func_check_version_match () +{ + if test "$package_revision" != "$macro_revision"; then + if test "$VERSION" != "$macro_version"; then + if test -z "$macro_version"; then + cat >&2 <<_LT_EOF +$progname: Version mismatch error. This is $PACKAGE $VERSION, but the +$progname: definition of this LT_INIT comes from an older release. +$progname: You should recreate aclocal.m4 with macros from $PACKAGE $VERSION +$progname: and run autoconf again. +_LT_EOF + else + cat >&2 <<_LT_EOF +$progname: Version mismatch error. This is $PACKAGE $VERSION, but the +$progname: definition of this LT_INIT comes from $PACKAGE $macro_version. +$progname: You should recreate aclocal.m4 with macros from $PACKAGE $VERSION +$progname: and run autoconf again. +_LT_EOF + fi + else + cat >&2 <<_LT_EOF +$progname: Version mismatch error. This is $PACKAGE $VERSION, revision $package_revision, +$progname: but the definition of this LT_INIT comes from revision $macro_revision. +$progname: You should recreate aclocal.m4 with macros from revision $package_revision +$progname: of $PACKAGE $VERSION and run autoconf again. +_LT_EOF + fi + + exit $EXIT_MISMATCH + fi +} + + +# Shorthand for --mode=foo, only valid as the first argument +case $1 in +clean|clea|cle|cl) + shift; set dummy --mode clean ${1+"$@"}; shift + ;; +compile|compil|compi|comp|com|co|c) + shift; set dummy --mode compile ${1+"$@"}; shift + ;; +execute|execut|execu|exec|exe|ex|e) + shift; set dummy --mode execute ${1+"$@"}; shift + ;; +finish|finis|fini|fin|fi|f) + shift; set dummy --mode finish ${1+"$@"}; shift + ;; +install|instal|insta|inst|ins|in|i) + shift; set dummy --mode install ${1+"$@"}; shift + ;; +link|lin|li|l) + shift; set dummy --mode link ${1+"$@"}; shift + ;; +uninstall|uninstal|uninsta|uninst|unins|unin|uni|un|u) + shift; set dummy --mode uninstall ${1+"$@"}; shift + ;; +esac + + + +# Option defaults: +opt_debug=: +opt_dry_run=false +opt_config=false +opt_preserve_dup_deps=false +opt_features=false +opt_finish=false +opt_help=false +opt_help_all=false +opt_silent=: +opt_warning=: +opt_verbose=: +opt_silent=false +opt_verbose=false + + +# Parse options once, thoroughly. This comes as soon as possible in the +# script to make things like `--version' happen as quickly as we can. +{ + # this just eases exit handling + while test $# -gt 0; do + opt="$1" + shift + case $opt in + --debug|-x) opt_debug='set -x' + func_echo "enabling shell trace mode" + $opt_debug + ;; + --dry-run|--dryrun|-n) + opt_dry_run=: + ;; + --config) + opt_config=: +func_config + ;; + --dlopen|-dlopen) + optarg="$1" + opt_dlopen="${opt_dlopen+$opt_dlopen +}$optarg" + shift + ;; + --preserve-dup-deps) + opt_preserve_dup_deps=: + ;; + --features) + opt_features=: +func_features + ;; + --finish) + opt_finish=: +set dummy --mode finish ${1+"$@"}; shift + ;; + --help) + opt_help=: + ;; + --help-all) + opt_help_all=: +opt_help=': help-all' + ;; + --mode) + test $# = 0 && func_missing_arg $opt && break + optarg="$1" + opt_mode="$optarg" +case $optarg in + # Valid mode arguments: + clean|compile|execute|finish|install|link|relink|uninstall) ;; + + # Catch anything else as an error + *) func_error "invalid argument for $opt" + exit_cmd=exit + break + ;; +esac + shift + ;; + --no-silent|--no-quiet) + opt_silent=false +func_append preserve_args " $opt" + ;; + --no-warning|--no-warn) + opt_warning=false +func_append preserve_args " $opt" + ;; + --no-verbose) + opt_verbose=false +func_append preserve_args " $opt" + ;; + --silent|--quiet) + opt_silent=: +func_append preserve_args " $opt" + opt_verbose=false + ;; + --verbose|-v) + opt_verbose=: +func_append preserve_args " $opt" +opt_silent=false + ;; + --tag) + test $# = 0 && func_missing_arg $opt && break + optarg="$1" + opt_tag="$optarg" +func_append preserve_args " $opt $optarg" +func_enable_tag "$optarg" + shift + ;; + + -\?|-h) func_usage ;; + --help) func_help ;; + --version) func_version ;; + + # Separate optargs to long options: + --*=*) + func_split_long_opt "$opt" + set dummy "$func_split_long_opt_name" "$func_split_long_opt_arg" ${1+"$@"} + shift + ;; + + # Separate non-argument short options: + -\?*|-h*|-n*|-v*) + func_split_short_opt "$opt" + set dummy "$func_split_short_opt_name" "-$func_split_short_opt_arg" ${1+"$@"} + shift + ;; + + --) break ;; + -*) func_fatal_help "unrecognized option \`$opt'" ;; + *) set dummy "$opt" ${1+"$@"}; shift; break ;; + esac + done + + # Validate options: + + # save first non-option argument + if test "$#" -gt 0; then + nonopt="$opt" + shift + fi + + # preserve --debug + test "$opt_debug" = : || func_append preserve_args " --debug" + + case $host in + *cygwin* | *mingw* | *pw32* | *cegcc*) + # don't eliminate duplications in $postdeps and $predeps + opt_duplicate_compiler_generated_deps=: + ;; + *) + opt_duplicate_compiler_generated_deps=$opt_preserve_dup_deps + ;; + esac + + $opt_help || { + # Sanity checks first: + func_check_version_match + + if test "$build_libtool_libs" != yes && test "$build_old_libs" != yes; then + func_fatal_configuration "not configured to build any kind of library" + fi + + # Darwin sucks + eval std_shrext=\"$shrext_cmds\" + + # Only execute mode is allowed to have -dlopen flags. + if test -n "$opt_dlopen" && test "$opt_mode" != execute; then + func_error "unrecognized option \`-dlopen'" + $ECHO "$help" 1>&2 + exit $EXIT_FAILURE + fi + + # Change the help message to a mode-specific one. + generic_help="$help" + help="Try \`$progname --help --mode=$opt_mode' for more information." + } + + + # Bail if the options were screwed + $exit_cmd $EXIT_FAILURE +} + + + + +## ----------- ## +## Main. ## +## ----------- ## + +# func_lalib_p file +# True iff FILE is a libtool `.la' library or `.lo' object file. +# This function is only a basic sanity check; it will hardly flush out +# determined imposters. +func_lalib_p () +{ + test -f "$1" && + $SED -e 4q "$1" 2>/dev/null \ + | $GREP "^# Generated by .*$PACKAGE" > /dev/null 2>&1 +} + +# func_lalib_unsafe_p file +# True iff FILE is a libtool `.la' library or `.lo' object file. +# This function implements the same check as func_lalib_p without +# resorting to external programs. To this end, it redirects stdin and +# closes it afterwards, without saving the original file descriptor. +# As a safety measure, use it only where a negative result would be +# fatal anyway. Works if `file' does not exist. +func_lalib_unsafe_p () +{ + lalib_p=no + if test -f "$1" && test -r "$1" && exec 5<&0 <"$1"; then + for lalib_p_l in 1 2 3 4 + do + read lalib_p_line + case "$lalib_p_line" in + \#\ Generated\ by\ *$PACKAGE* ) lalib_p=yes; break;; + esac + done + exec 0<&5 5<&- + fi + test "$lalib_p" = yes +} + +# func_ltwrapper_script_p file +# True iff FILE is a libtool wrapper script +# This function is only a basic sanity check; it will hardly flush out +# determined imposters. +func_ltwrapper_script_p () +{ + func_lalib_p "$1" +} + +# func_ltwrapper_executable_p file +# True iff FILE is a libtool wrapper executable +# This function is only a basic sanity check; it will hardly flush out +# determined imposters. +func_ltwrapper_executable_p () +{ + func_ltwrapper_exec_suffix= + case $1 in + *.exe) ;; + *) func_ltwrapper_exec_suffix=.exe ;; + esac + $GREP "$magic_exe" "$1$func_ltwrapper_exec_suffix" >/dev/null 2>&1 +} + +# func_ltwrapper_scriptname file +# Assumes file is an ltwrapper_executable +# uses $file to determine the appropriate filename for a +# temporary ltwrapper_script. +func_ltwrapper_scriptname () +{ + func_dirname_and_basename "$1" "" "." + func_stripname '' '.exe' "$func_basename_result" + func_ltwrapper_scriptname_result="$func_dirname_result/$objdir/${func_stripname_result}_ltshwrapper" +} + +# func_ltwrapper_p file +# True iff FILE is a libtool wrapper script or wrapper executable +# This function is only a basic sanity check; it will hardly flush out +# determined imposters. +func_ltwrapper_p () +{ + func_ltwrapper_script_p "$1" || func_ltwrapper_executable_p "$1" +} + + +# func_execute_cmds commands fail_cmd +# Execute tilde-delimited COMMANDS. +# If FAIL_CMD is given, eval that upon failure. +# FAIL_CMD may read-access the current command in variable CMD! +func_execute_cmds () +{ + $opt_debug + save_ifs=$IFS; IFS='~' + for cmd in $1; do + IFS=$save_ifs + eval cmd=\"$cmd\" + func_show_eval "$cmd" "${2-:}" + done + IFS=$save_ifs +} + + +# func_source file +# Source FILE, adding directory component if necessary. +# Note that it is not necessary on cygwin/mingw to append a dot to +# FILE even if both FILE and FILE.exe exist: automatic-append-.exe +# behavior happens only for exec(3), not for open(2)! Also, sourcing +# `FILE.' does not work on cygwin managed mounts. +func_source () +{ + $opt_debug + case $1 in + */* | *\\*) . "$1" ;; + *) . "./$1" ;; + esac +} + + +# func_resolve_sysroot PATH +# Replace a leading = in PATH with a sysroot. Store the result into +# func_resolve_sysroot_result +func_resolve_sysroot () +{ + func_resolve_sysroot_result=$1 + case $func_resolve_sysroot_result in + =*) + func_stripname '=' '' "$func_resolve_sysroot_result" + func_resolve_sysroot_result=$lt_sysroot$func_stripname_result + ;; + esac +} + +# func_replace_sysroot PATH +# If PATH begins with the sysroot, replace it with = and +# store the result into func_replace_sysroot_result. +func_replace_sysroot () +{ + case "$lt_sysroot:$1" in + ?*:"$lt_sysroot"*) + func_stripname "$lt_sysroot" '' "$1" + func_replace_sysroot_result="=$func_stripname_result" + ;; + *) + # Including no sysroot. + func_replace_sysroot_result=$1 + ;; + esac +} + +# func_infer_tag arg +# Infer tagged configuration to use if any are available and +# if one wasn't chosen via the "--tag" command line option. +# Only attempt this if the compiler in the base compile +# command doesn't match the default compiler. +# arg is usually of the form 'gcc ...' +func_infer_tag () +{ + $opt_debug + if test -n "$available_tags" && test -z "$tagname"; then + CC_quoted= + for arg in $CC; do + func_append_quoted CC_quoted "$arg" + done + CC_expanded=`func_echo_all $CC` + CC_quoted_expanded=`func_echo_all $CC_quoted` + case $@ in + # Blanks in the command may have been stripped by the calling shell, + # but not from the CC environment variable when configure was run. + " $CC "* | "$CC "* | " $CC_expanded "* | "$CC_expanded "* | \ + " $CC_quoted"* | "$CC_quoted "* | " $CC_quoted_expanded "* | "$CC_quoted_expanded "*) ;; + # Blanks at the start of $base_compile will cause this to fail + # if we don't check for them as well. + *) + for z in $available_tags; do + if $GREP "^# ### BEGIN LIBTOOL TAG CONFIG: $z$" < "$progpath" > /dev/null; then + # Evaluate the configuration. + eval "`${SED} -n -e '/^# ### BEGIN LIBTOOL TAG CONFIG: '$z'$/,/^# ### END LIBTOOL TAG CONFIG: '$z'$/p' < $progpath`" + CC_quoted= + for arg in $CC; do + # Double-quote args containing other shell metacharacters. + func_append_quoted CC_quoted "$arg" + done + CC_expanded=`func_echo_all $CC` + CC_quoted_expanded=`func_echo_all $CC_quoted` + case "$@ " in + " $CC "* | "$CC "* | " $CC_expanded "* | "$CC_expanded "* | \ + " $CC_quoted"* | "$CC_quoted "* | " $CC_quoted_expanded "* | "$CC_quoted_expanded "*) + # The compiler in the base compile command matches + # the one in the tagged configuration. + # Assume this is the tagged configuration we want. + tagname=$z + break + ;; + esac + fi + done + # If $tagname still isn't set, then no tagged configuration + # was found and let the user know that the "--tag" command + # line option must be used. + if test -z "$tagname"; then + func_echo "unable to infer tagged configuration" + func_fatal_error "specify a tag with \`--tag'" +# else +# func_verbose "using $tagname tagged configuration" + fi + ;; + esac + fi +} + + + +# func_write_libtool_object output_name pic_name nonpic_name +# Create a libtool object file (analogous to a ".la" file), +# but don't create it if we're doing a dry run. +func_write_libtool_object () +{ + write_libobj=${1} + if test "$build_libtool_libs" = yes; then + write_lobj=\'${2}\' + else + write_lobj=none + fi + + if test "$build_old_libs" = yes; then + write_oldobj=\'${3}\' + else + write_oldobj=none + fi + + $opt_dry_run || { + cat >${write_libobj}T </dev/null` + if test "$?" -eq 0 && test -n "${func_convert_core_file_wine_to_w32_tmp}"; then + func_convert_core_file_wine_to_w32_result=`$ECHO "$func_convert_core_file_wine_to_w32_tmp" | + $SED -e "$lt_sed_naive_backslashify"` + else + func_convert_core_file_wine_to_w32_result= + fi + fi +} +# end: func_convert_core_file_wine_to_w32 + + +# func_convert_core_path_wine_to_w32 ARG +# Helper function used by path conversion functions when $build is *nix, and +# $host is mingw, cygwin, or some other w32 environment. Relies on a correctly +# configured wine environment available, with the winepath program in $build's +# $PATH. Assumes ARG has no leading or trailing path separator characters. +# +# ARG is path to be converted from $build format to win32. +# Result is available in $func_convert_core_path_wine_to_w32_result. +# Unconvertible file (directory) names in ARG are skipped; if no directory names +# are convertible, then the result may be empty. +func_convert_core_path_wine_to_w32 () +{ + $opt_debug + # unfortunately, winepath doesn't convert paths, only file names + func_convert_core_path_wine_to_w32_result="" + if test -n "$1"; then + oldIFS=$IFS + IFS=: + for func_convert_core_path_wine_to_w32_f in $1; do + IFS=$oldIFS + func_convert_core_file_wine_to_w32 "$func_convert_core_path_wine_to_w32_f" + if test -n "$func_convert_core_file_wine_to_w32_result" ; then + if test -z "$func_convert_core_path_wine_to_w32_result"; then + func_convert_core_path_wine_to_w32_result="$func_convert_core_file_wine_to_w32_result" + else + func_append func_convert_core_path_wine_to_w32_result ";$func_convert_core_file_wine_to_w32_result" + fi + fi + done + IFS=$oldIFS + fi +} +# end: func_convert_core_path_wine_to_w32 + + +# func_cygpath ARGS... +# Wrapper around calling the cygpath program via LT_CYGPATH. This is used when +# when (1) $build is *nix and Cygwin is hosted via a wine environment; or (2) +# $build is MSYS and $host is Cygwin, or (3) $build is Cygwin. In case (1) or +# (2), returns the Cygwin file name or path in func_cygpath_result (input +# file name or path is assumed to be in w32 format, as previously converted +# from $build's *nix or MSYS format). In case (3), returns the w32 file name +# or path in func_cygpath_result (input file name or path is assumed to be in +# Cygwin format). Returns an empty string on error. +# +# ARGS are passed to cygpath, with the last one being the file name or path to +# be converted. +# +# Specify the absolute *nix (or w32) name to cygpath in the LT_CYGPATH +# environment variable; do not put it in $PATH. +func_cygpath () +{ + $opt_debug + if test -n "$LT_CYGPATH" && test -f "$LT_CYGPATH"; then + func_cygpath_result=`$LT_CYGPATH "$@" 2>/dev/null` + if test "$?" -ne 0; then + # on failure, ensure result is empty + func_cygpath_result= + fi + else + func_cygpath_result= + func_error "LT_CYGPATH is empty or specifies non-existent file: \`$LT_CYGPATH'" + fi +} +#end: func_cygpath + + +# func_convert_core_msys_to_w32 ARG +# Convert file name or path ARG from MSYS format to w32 format. Return +# result in func_convert_core_msys_to_w32_result. +func_convert_core_msys_to_w32 () +{ + $opt_debug + # awkward: cmd appends spaces to result + func_convert_core_msys_to_w32_result=`( cmd //c echo "$1" ) 2>/dev/null | + $SED -e 's/[ ]*$//' -e "$lt_sed_naive_backslashify"` +} +#end: func_convert_core_msys_to_w32 + + +# func_convert_file_check ARG1 ARG2 +# Verify that ARG1 (a file name in $build format) was converted to $host +# format in ARG2. Otherwise, emit an error message, but continue (resetting +# func_to_host_file_result to ARG1). +func_convert_file_check () +{ + $opt_debug + if test -z "$2" && test -n "$1" ; then + func_error "Could not determine host file name corresponding to" + func_error " \`$1'" + func_error "Continuing, but uninstalled executables may not work." + # Fallback: + func_to_host_file_result="$1" + fi +} +# end func_convert_file_check + + +# func_convert_path_check FROM_PATHSEP TO_PATHSEP FROM_PATH TO_PATH +# Verify that FROM_PATH (a path in $build format) was converted to $host +# format in TO_PATH. Otherwise, emit an error message, but continue, resetting +# func_to_host_file_result to a simplistic fallback value (see below). +func_convert_path_check () +{ + $opt_debug + if test -z "$4" && test -n "$3"; then + func_error "Could not determine the host path corresponding to" + func_error " \`$3'" + func_error "Continuing, but uninstalled executables may not work." + # Fallback. This is a deliberately simplistic "conversion" and + # should not be "improved". See libtool.info. + if test "x$1" != "x$2"; then + lt_replace_pathsep_chars="s|$1|$2|g" + func_to_host_path_result=`echo "$3" | + $SED -e "$lt_replace_pathsep_chars"` + else + func_to_host_path_result="$3" + fi + fi +} +# end func_convert_path_check + + +# func_convert_path_front_back_pathsep FRONTPAT BACKPAT REPL ORIG +# Modifies func_to_host_path_result by prepending REPL if ORIG matches FRONTPAT +# and appending REPL if ORIG matches BACKPAT. +func_convert_path_front_back_pathsep () +{ + $opt_debug + case $4 in + $1 ) func_to_host_path_result="$3$func_to_host_path_result" + ;; + esac + case $4 in + $2 ) func_append func_to_host_path_result "$3" + ;; + esac +} +# end func_convert_path_front_back_pathsep + + +################################################## +# $build to $host FILE NAME CONVERSION FUNCTIONS # +################################################## +# invoked via `$to_host_file_cmd ARG' +# +# In each case, ARG is the path to be converted from $build to $host format. +# Result will be available in $func_to_host_file_result. + + +# func_to_host_file ARG +# Converts the file name ARG from $build format to $host format. Return result +# in func_to_host_file_result. +func_to_host_file () +{ + $opt_debug + $to_host_file_cmd "$1" +} +# end func_to_host_file + + +# func_to_tool_file ARG LAZY +# converts the file name ARG from $build format to toolchain format. Return +# result in func_to_tool_file_result. If the conversion in use is listed +# in (the comma separated) LAZY, no conversion takes place. +func_to_tool_file () +{ + $opt_debug + case ,$2, in + *,"$to_tool_file_cmd",*) + func_to_tool_file_result=$1 + ;; + *) + $to_tool_file_cmd "$1" + func_to_tool_file_result=$func_to_host_file_result + ;; + esac +} +# end func_to_tool_file + + +# func_convert_file_noop ARG +# Copy ARG to func_to_host_file_result. +func_convert_file_noop () +{ + func_to_host_file_result="$1" +} +# end func_convert_file_noop + + +# func_convert_file_msys_to_w32 ARG +# Convert file name ARG from (mingw) MSYS to (mingw) w32 format; automatic +# conversion to w32 is not available inside the cwrapper. Returns result in +# func_to_host_file_result. +func_convert_file_msys_to_w32 () +{ + $opt_debug + func_to_host_file_result="$1" + if test -n "$1"; then + func_convert_core_msys_to_w32 "$1" + func_to_host_file_result="$func_convert_core_msys_to_w32_result" + fi + func_convert_file_check "$1" "$func_to_host_file_result" +} +# end func_convert_file_msys_to_w32 + + +# func_convert_file_cygwin_to_w32 ARG +# Convert file name ARG from Cygwin to w32 format. Returns result in +# func_to_host_file_result. +func_convert_file_cygwin_to_w32 () +{ + $opt_debug + func_to_host_file_result="$1" + if test -n "$1"; then + # because $build is cygwin, we call "the" cygpath in $PATH; no need to use + # LT_CYGPATH in this case. + func_to_host_file_result=`cygpath -m "$1"` + fi + func_convert_file_check "$1" "$func_to_host_file_result" +} +# end func_convert_file_cygwin_to_w32 + + +# func_convert_file_nix_to_w32 ARG +# Convert file name ARG from *nix to w32 format. Requires a wine environment +# and a working winepath. Returns result in func_to_host_file_result. +func_convert_file_nix_to_w32 () +{ + $opt_debug + func_to_host_file_result="$1" + if test -n "$1"; then + func_convert_core_file_wine_to_w32 "$1" + func_to_host_file_result="$func_convert_core_file_wine_to_w32_result" + fi + func_convert_file_check "$1" "$func_to_host_file_result" +} +# end func_convert_file_nix_to_w32 + + +# func_convert_file_msys_to_cygwin ARG +# Convert file name ARG from MSYS to Cygwin format. Requires LT_CYGPATH set. +# Returns result in func_to_host_file_result. +func_convert_file_msys_to_cygwin () +{ + $opt_debug + func_to_host_file_result="$1" + if test -n "$1"; then + func_convert_core_msys_to_w32 "$1" + func_cygpath -u "$func_convert_core_msys_to_w32_result" + func_to_host_file_result="$func_cygpath_result" + fi + func_convert_file_check "$1" "$func_to_host_file_result" +} +# end func_convert_file_msys_to_cygwin + + +# func_convert_file_nix_to_cygwin ARG +# Convert file name ARG from *nix to Cygwin format. Requires Cygwin installed +# in a wine environment, working winepath, and LT_CYGPATH set. Returns result +# in func_to_host_file_result. +func_convert_file_nix_to_cygwin () +{ + $opt_debug + func_to_host_file_result="$1" + if test -n "$1"; then + # convert from *nix to w32, then use cygpath to convert from w32 to cygwin. + func_convert_core_file_wine_to_w32 "$1" + func_cygpath -u "$func_convert_core_file_wine_to_w32_result" + func_to_host_file_result="$func_cygpath_result" + fi + func_convert_file_check "$1" "$func_to_host_file_result" +} +# end func_convert_file_nix_to_cygwin + + +############################################# +# $build to $host PATH CONVERSION FUNCTIONS # +############################################# +# invoked via `$to_host_path_cmd ARG' +# +# In each case, ARG is the path to be converted from $build to $host format. +# The result will be available in $func_to_host_path_result. +# +# Path separators are also converted from $build format to $host format. If +# ARG begins or ends with a path separator character, it is preserved (but +# converted to $host format) on output. +# +# All path conversion functions are named using the following convention: +# file name conversion function : func_convert_file_X_to_Y () +# path conversion function : func_convert_path_X_to_Y () +# where, for any given $build/$host combination the 'X_to_Y' value is the +# same. If conversion functions are added for new $build/$host combinations, +# the two new functions must follow this pattern, or func_init_to_host_path_cmd +# will break. + + +# func_init_to_host_path_cmd +# Ensures that function "pointer" variable $to_host_path_cmd is set to the +# appropriate value, based on the value of $to_host_file_cmd. +to_host_path_cmd= +func_init_to_host_path_cmd () +{ + $opt_debug + if test -z "$to_host_path_cmd"; then + func_stripname 'func_convert_file_' '' "$to_host_file_cmd" + to_host_path_cmd="func_convert_path_${func_stripname_result}" + fi +} + + +# func_to_host_path ARG +# Converts the path ARG from $build format to $host format. Return result +# in func_to_host_path_result. +func_to_host_path () +{ + $opt_debug + func_init_to_host_path_cmd + $to_host_path_cmd "$1" +} +# end func_to_host_path + + +# func_convert_path_noop ARG +# Copy ARG to func_to_host_path_result. +func_convert_path_noop () +{ + func_to_host_path_result="$1" +} +# end func_convert_path_noop + + +# func_convert_path_msys_to_w32 ARG +# Convert path ARG from (mingw) MSYS to (mingw) w32 format; automatic +# conversion to w32 is not available inside the cwrapper. Returns result in +# func_to_host_path_result. +func_convert_path_msys_to_w32 () +{ + $opt_debug + func_to_host_path_result="$1" + if test -n "$1"; then + # Remove leading and trailing path separator characters from ARG. MSYS + # behavior is inconsistent here; cygpath turns them into '.;' and ';.'; + # and winepath ignores them completely. + func_stripname : : "$1" + func_to_host_path_tmp1=$func_stripname_result + func_convert_core_msys_to_w32 "$func_to_host_path_tmp1" + func_to_host_path_result="$func_convert_core_msys_to_w32_result" + func_convert_path_check : ";" \ + "$func_to_host_path_tmp1" "$func_to_host_path_result" + func_convert_path_front_back_pathsep ":*" "*:" ";" "$1" + fi +} +# end func_convert_path_msys_to_w32 + + +# func_convert_path_cygwin_to_w32 ARG +# Convert path ARG from Cygwin to w32 format. Returns result in +# func_to_host_file_result. +func_convert_path_cygwin_to_w32 () +{ + $opt_debug + func_to_host_path_result="$1" + if test -n "$1"; then + # See func_convert_path_msys_to_w32: + func_stripname : : "$1" + func_to_host_path_tmp1=$func_stripname_result + func_to_host_path_result=`cygpath -m -p "$func_to_host_path_tmp1"` + func_convert_path_check : ";" \ + "$func_to_host_path_tmp1" "$func_to_host_path_result" + func_convert_path_front_back_pathsep ":*" "*:" ";" "$1" + fi +} +# end func_convert_path_cygwin_to_w32 + + +# func_convert_path_nix_to_w32 ARG +# Convert path ARG from *nix to w32 format. Requires a wine environment and +# a working winepath. Returns result in func_to_host_file_result. +func_convert_path_nix_to_w32 () +{ + $opt_debug + func_to_host_path_result="$1" + if test -n "$1"; then + # See func_convert_path_msys_to_w32: + func_stripname : : "$1" + func_to_host_path_tmp1=$func_stripname_result + func_convert_core_path_wine_to_w32 "$func_to_host_path_tmp1" + func_to_host_path_result="$func_convert_core_path_wine_to_w32_result" + func_convert_path_check : ";" \ + "$func_to_host_path_tmp1" "$func_to_host_path_result" + func_convert_path_front_back_pathsep ":*" "*:" ";" "$1" + fi +} +# end func_convert_path_nix_to_w32 + + +# func_convert_path_msys_to_cygwin ARG +# Convert path ARG from MSYS to Cygwin format. Requires LT_CYGPATH set. +# Returns result in func_to_host_file_result. +func_convert_path_msys_to_cygwin () +{ + $opt_debug + func_to_host_path_result="$1" + if test -n "$1"; then + # See func_convert_path_msys_to_w32: + func_stripname : : "$1" + func_to_host_path_tmp1=$func_stripname_result + func_convert_core_msys_to_w32 "$func_to_host_path_tmp1" + func_cygpath -u -p "$func_convert_core_msys_to_w32_result" + func_to_host_path_result="$func_cygpath_result" + func_convert_path_check : : \ + "$func_to_host_path_tmp1" "$func_to_host_path_result" + func_convert_path_front_back_pathsep ":*" "*:" : "$1" + fi +} +# end func_convert_path_msys_to_cygwin + + +# func_convert_path_nix_to_cygwin ARG +# Convert path ARG from *nix to Cygwin format. Requires Cygwin installed in a +# a wine environment, working winepath, and LT_CYGPATH set. Returns result in +# func_to_host_file_result. +func_convert_path_nix_to_cygwin () +{ + $opt_debug + func_to_host_path_result="$1" + if test -n "$1"; then + # Remove leading and trailing path separator characters from + # ARG. msys behavior is inconsistent here, cygpath turns them + # into '.;' and ';.', and winepath ignores them completely. + func_stripname : : "$1" + func_to_host_path_tmp1=$func_stripname_result + func_convert_core_path_wine_to_w32 "$func_to_host_path_tmp1" + func_cygpath -u -p "$func_convert_core_path_wine_to_w32_result" + func_to_host_path_result="$func_cygpath_result" + func_convert_path_check : : \ + "$func_to_host_path_tmp1" "$func_to_host_path_result" + func_convert_path_front_back_pathsep ":*" "*:" : "$1" + fi +} +# end func_convert_path_nix_to_cygwin + + +# func_mode_compile arg... +func_mode_compile () +{ + $opt_debug + # Get the compilation command and the source file. + base_compile= + srcfile="$nonopt" # always keep a non-empty value in "srcfile" + suppress_opt=yes + suppress_output= + arg_mode=normal + libobj= + later= + pie_flag= + + for arg + do + case $arg_mode in + arg ) + # do not "continue". Instead, add this to base_compile + lastarg="$arg" + arg_mode=normal + ;; + + target ) + libobj="$arg" + arg_mode=normal + continue + ;; + + normal ) + # Accept any command-line options. + case $arg in + -o) + test -n "$libobj" && \ + func_fatal_error "you cannot specify \`-o' more than once" + arg_mode=target + continue + ;; + + -pie | -fpie | -fPIE) + func_append pie_flag " $arg" + continue + ;; + + -shared | -static | -prefer-pic | -prefer-non-pic) + func_append later " $arg" + continue + ;; + + -no-suppress) + suppress_opt=no + continue + ;; + + -Xcompiler) + arg_mode=arg # the next one goes into the "base_compile" arg list + continue # The current "srcfile" will either be retained or + ;; # replaced later. I would guess that would be a bug. + + -Wc,*) + func_stripname '-Wc,' '' "$arg" + args=$func_stripname_result + lastarg= + save_ifs="$IFS"; IFS=',' + for arg in $args; do + IFS="$save_ifs" + func_append_quoted lastarg "$arg" + done + IFS="$save_ifs" + func_stripname ' ' '' "$lastarg" + lastarg=$func_stripname_result + + # Add the arguments to base_compile. + func_append base_compile " $lastarg" + continue + ;; + + *) + # Accept the current argument as the source file. + # The previous "srcfile" becomes the current argument. + # + lastarg="$srcfile" + srcfile="$arg" + ;; + esac # case $arg + ;; + esac # case $arg_mode + + # Aesthetically quote the previous argument. + func_append_quoted base_compile "$lastarg" + done # for arg + + case $arg_mode in + arg) + func_fatal_error "you must specify an argument for -Xcompile" + ;; + target) + func_fatal_error "you must specify a target with \`-o'" + ;; + *) + # Get the name of the library object. + test -z "$libobj" && { + func_basename "$srcfile" + libobj="$func_basename_result" + } + ;; + esac + + # Recognize several different file suffixes. + # If the user specifies -o file.o, it is replaced with file.lo + case $libobj in + *.[cCFSifmso] | \ + *.ada | *.adb | *.ads | *.asm | \ + *.c++ | *.cc | *.ii | *.class | *.cpp | *.cxx | \ + *.[fF][09]? | *.for | *.java | *.go | *.obj | *.sx | *.cu | *.cup) + func_xform "$libobj" + libobj=$func_xform_result + ;; + esac + + case $libobj in + *.lo) func_lo2o "$libobj"; obj=$func_lo2o_result ;; + *) + func_fatal_error "cannot determine name of library object from \`$libobj'" + ;; + esac + + func_infer_tag $base_compile + + for arg in $later; do + case $arg in + -shared) + test "$build_libtool_libs" != yes && \ + func_fatal_configuration "can not build a shared library" + build_old_libs=no + continue + ;; + + -static) + build_libtool_libs=no + build_old_libs=yes + continue + ;; + + -prefer-pic) + pic_mode=yes + continue + ;; + + -prefer-non-pic) + pic_mode=no + continue + ;; + esac + done + + func_quote_for_eval "$libobj" + test "X$libobj" != "X$func_quote_for_eval_result" \ + && $ECHO "X$libobj" | $GREP '[]~#^*{};<>?"'"'"' &()|`$[]' \ + && func_warning "libobj name \`$libobj' may not contain shell special characters." + func_dirname_and_basename "$obj" "/" "" + objname="$func_basename_result" + xdir="$func_dirname_result" + lobj=${xdir}$objdir/$objname + + test -z "$base_compile" && \ + func_fatal_help "you must specify a compilation command" + + # Delete any leftover library objects. + if test "$build_old_libs" = yes; then + removelist="$obj $lobj $libobj ${libobj}T" + else + removelist="$lobj $libobj ${libobj}T" + fi + + # On Cygwin there's no "real" PIC flag so we must build both object types + case $host_os in + cygwin* | mingw* | pw32* | os2* | cegcc*) + pic_mode=default + ;; + esac + if test "$pic_mode" = no && test "$deplibs_check_method" != pass_all; then + # non-PIC code in shared libraries is not supported + pic_mode=default + fi + + # Calculate the filename of the output object if compiler does + # not support -o with -c + if test "$compiler_c_o" = no; then + output_obj=`$ECHO "$srcfile" | $SED 's%^.*/%%; s%\.[^.]*$%%'`.${objext} + lockfile="$output_obj.lock" + else + output_obj= + need_locks=no + lockfile= + fi + + # Lock this critical section if it is needed + # We use this script file to make the link, it avoids creating a new file + if test "$need_locks" = yes; then + until $opt_dry_run || ln "$progpath" "$lockfile" 2>/dev/null; do + func_echo "Waiting for $lockfile to be removed" + sleep 2 + done + elif test "$need_locks" = warn; then + if test -f "$lockfile"; then + $ECHO "\ +*** ERROR, $lockfile exists and contains: +`cat $lockfile 2>/dev/null` + +This indicates that another process is trying to use the same +temporary object file, and libtool could not work around it because +your compiler does not support \`-c' and \`-o' together. If you +repeat this compilation, it may succeed, by chance, but you had better +avoid parallel builds (make -j) in this platform, or get a better +compiler." + + $opt_dry_run || $RM $removelist + exit $EXIT_FAILURE + fi + func_append removelist " $output_obj" + $ECHO "$srcfile" > "$lockfile" + fi + + $opt_dry_run || $RM $removelist + func_append removelist " $lockfile" + trap '$opt_dry_run || $RM $removelist; exit $EXIT_FAILURE' 1 2 15 + + func_to_tool_file "$srcfile" func_convert_file_msys_to_w32 + srcfile=$func_to_tool_file_result + func_quote_for_eval "$srcfile" + qsrcfile=$func_quote_for_eval_result + + # Only build a PIC object if we are building libtool libraries. + if test "$build_libtool_libs" = yes; then + # Without this assignment, base_compile gets emptied. + fbsd_hideous_sh_bug=$base_compile + + if test "$pic_mode" != no; then + command="$base_compile $qsrcfile $pic_flag" + else + # Don't build PIC code + command="$base_compile $qsrcfile" + fi + + func_mkdir_p "$xdir$objdir" + + if test -z "$output_obj"; then + # Place PIC objects in $objdir + func_append command " -o $lobj" + fi + + func_show_eval_locale "$command" \ + 'test -n "$output_obj" && $RM $removelist; exit $EXIT_FAILURE' + + if test "$need_locks" = warn && + test "X`cat $lockfile 2>/dev/null`" != "X$srcfile"; then + $ECHO "\ +*** ERROR, $lockfile contains: +`cat $lockfile 2>/dev/null` + +but it should contain: +$srcfile + +This indicates that another process is trying to use the same +temporary object file, and libtool could not work around it because +your compiler does not support \`-c' and \`-o' together. If you +repeat this compilation, it may succeed, by chance, but you had better +avoid parallel builds (make -j) in this platform, or get a better +compiler." + + $opt_dry_run || $RM $removelist + exit $EXIT_FAILURE + fi + + # Just move the object if needed, then go on to compile the next one + if test -n "$output_obj" && test "X$output_obj" != "X$lobj"; then + func_show_eval '$MV "$output_obj" "$lobj"' \ + 'error=$?; $opt_dry_run || $RM $removelist; exit $error' + fi + + # Allow error messages only from the first compilation. + if test "$suppress_opt" = yes; then + suppress_output=' >/dev/null 2>&1' + fi + fi + + # Only build a position-dependent object if we build old libraries. + if test "$build_old_libs" = yes; then + if test "$pic_mode" != yes; then + # Don't build PIC code + command="$base_compile $qsrcfile$pie_flag" + else + command="$base_compile $qsrcfile $pic_flag" + fi + if test "$compiler_c_o" = yes; then + func_append command " -o $obj" + fi + + # Suppress compiler output if we already did a PIC compilation. + func_append command "$suppress_output" + func_show_eval_locale "$command" \ + '$opt_dry_run || $RM $removelist; exit $EXIT_FAILURE' + + if test "$need_locks" = warn && + test "X`cat $lockfile 2>/dev/null`" != "X$srcfile"; then + $ECHO "\ +*** ERROR, $lockfile contains: +`cat $lockfile 2>/dev/null` + +but it should contain: +$srcfile + +This indicates that another process is trying to use the same +temporary object file, and libtool could not work around it because +your compiler does not support \`-c' and \`-o' together. If you +repeat this compilation, it may succeed, by chance, but you had better +avoid parallel builds (make -j) in this platform, or get a better +compiler." + + $opt_dry_run || $RM $removelist + exit $EXIT_FAILURE + fi + + # Just move the object if needed + if test -n "$output_obj" && test "X$output_obj" != "X$obj"; then + func_show_eval '$MV "$output_obj" "$obj"' \ + 'error=$?; $opt_dry_run || $RM $removelist; exit $error' + fi + fi + + $opt_dry_run || { + func_write_libtool_object "$libobj" "$objdir/$objname" "$objname" + + # Unlock the critical section if it was locked + if test "$need_locks" != no; then + removelist=$lockfile + $RM "$lockfile" + fi + } + + exit $EXIT_SUCCESS +} + +$opt_help || { + test "$opt_mode" = compile && func_mode_compile ${1+"$@"} +} + +func_mode_help () +{ + # We need to display help for each of the modes. + case $opt_mode in + "") + # Generic help is extracted from the usage comments + # at the start of this file. + func_help + ;; + + clean) + $ECHO \ +"Usage: $progname [OPTION]... --mode=clean RM [RM-OPTION]... FILE... + +Remove files from the build directory. + +RM is the name of the program to use to delete files associated with each FILE +(typically \`/bin/rm'). RM-OPTIONS are options (such as \`-f') to be passed +to RM. + +If FILE is a libtool library, object or program, all the files associated +with it are deleted. Otherwise, only FILE itself is deleted using RM." + ;; + + compile) + $ECHO \ +"Usage: $progname [OPTION]... --mode=compile COMPILE-COMMAND... SOURCEFILE + +Compile a source file into a libtool library object. + +This mode accepts the following additional options: + + -o OUTPUT-FILE set the output file name to OUTPUT-FILE + -no-suppress do not suppress compiler output for multiple passes + -prefer-pic try to build PIC objects only + -prefer-non-pic try to build non-PIC objects only + -shared do not build a \`.o' file suitable for static linking + -static only build a \`.o' file suitable for static linking + -Wc,FLAG pass FLAG directly to the compiler + +COMPILE-COMMAND is a command to be used in creating a \`standard' object file +from the given SOURCEFILE. + +The output file name is determined by removing the directory component from +SOURCEFILE, then substituting the C source code suffix \`.c' with the +library object suffix, \`.lo'." + ;; + + execute) + $ECHO \ +"Usage: $progname [OPTION]... --mode=execute COMMAND [ARGS]... + +Automatically set library path, then run a program. + +This mode accepts the following additional options: + + -dlopen FILE add the directory containing FILE to the library path + +This mode sets the library path environment variable according to \`-dlopen' +flags. + +If any of the ARGS are libtool executable wrappers, then they are translated +into their corresponding uninstalled binary, and any of their required library +directories are added to the library path. + +Then, COMMAND is executed, with ARGS as arguments." + ;; + + finish) + $ECHO \ +"Usage: $progname [OPTION]... --mode=finish [LIBDIR]... + +Complete the installation of libtool libraries. + +Each LIBDIR is a directory that contains libtool libraries. + +The commands that this mode executes may require superuser privileges. Use +the \`--dry-run' option if you just want to see what would be executed." + ;; + + install) + $ECHO \ +"Usage: $progname [OPTION]... --mode=install INSTALL-COMMAND... + +Install executables or libraries. + +INSTALL-COMMAND is the installation command. The first component should be +either the \`install' or \`cp' program. + +The following components of INSTALL-COMMAND are treated specially: + + -inst-prefix-dir PREFIX-DIR Use PREFIX-DIR as a staging area for installation + +The rest of the components are interpreted as arguments to that command (only +BSD-compatible install options are recognized)." + ;; + + link) + $ECHO \ +"Usage: $progname [OPTION]... --mode=link LINK-COMMAND... + +Link object files or libraries together to form another library, or to +create an executable program. + +LINK-COMMAND is a command using the C compiler that you would use to create +a program from several object files. + +The following components of LINK-COMMAND are treated specially: + + -all-static do not do any dynamic linking at all + -avoid-version do not add a version suffix if possible + -bindir BINDIR specify path to binaries directory (for systems where + libraries must be found in the PATH setting at runtime) + -dlopen FILE \`-dlpreopen' FILE if it cannot be dlopened at runtime + -dlpreopen FILE link in FILE and add its symbols to lt_preloaded_symbols + -export-dynamic allow symbols from OUTPUT-FILE to be resolved with dlsym(3) + -export-symbols SYMFILE + try to export only the symbols listed in SYMFILE + -export-symbols-regex REGEX + try to export only the symbols matching REGEX + -LLIBDIR search LIBDIR for required installed libraries + -lNAME OUTPUT-FILE requires the installed library libNAME + -module build a library that can dlopened + -no-fast-install disable the fast-install mode + -no-install link a not-installable executable + -no-undefined declare that a library does not refer to external symbols + -o OUTPUT-FILE create OUTPUT-FILE from the specified objects + -objectlist FILE Use a list of object files found in FILE to specify objects + -precious-files-regex REGEX + don't remove output files matching REGEX + -release RELEASE specify package release information + -rpath LIBDIR the created library will eventually be installed in LIBDIR + -R[ ]LIBDIR add LIBDIR to the runtime path of programs and libraries + -shared only do dynamic linking of libtool libraries + -shrext SUFFIX override the standard shared library file extension + -static do not do any dynamic linking of uninstalled libtool libraries + -static-libtool-libs + do not do any dynamic linking of libtool libraries + -version-info CURRENT[:REVISION[:AGE]] + specify library version info [each variable defaults to 0] + -weak LIBNAME declare that the target provides the LIBNAME interface + -Wc,FLAG + -Xcompiler FLAG pass linker-specific FLAG directly to the compiler + -Wl,FLAG + -Xlinker FLAG pass linker-specific FLAG directly to the linker + -XCClinker FLAG pass link-specific FLAG to the compiler driver (CC) + +All other options (arguments beginning with \`-') are ignored. + +Every other argument is treated as a filename. Files ending in \`.la' are +treated as uninstalled libtool libraries, other files are standard or library +object files. + +If the OUTPUT-FILE ends in \`.la', then a libtool library is created, +only library objects (\`.lo' files) may be specified, and \`-rpath' is +required, except when creating a convenience library. + +If OUTPUT-FILE ends in \`.a' or \`.lib', then a standard library is created +using \`ar' and \`ranlib', or on Windows using \`lib'. + +If OUTPUT-FILE ends in \`.lo' or \`.${objext}', then a reloadable object file +is created, otherwise an executable program is created." + ;; + + uninstall) + $ECHO \ +"Usage: $progname [OPTION]... --mode=uninstall RM [RM-OPTION]... FILE... + +Remove libraries from an installation directory. + +RM is the name of the program to use to delete files associated with each FILE +(typically \`/bin/rm'). RM-OPTIONS are options (such as \`-f') to be passed +to RM. + +If FILE is a libtool library, all the files associated with it are deleted. +Otherwise, only FILE itself is deleted using RM." + ;; + + *) + func_fatal_help "invalid operation mode \`$opt_mode'" + ;; + esac + + echo + $ECHO "Try \`$progname --help' for more information about other modes." +} + +# Now that we've collected a possible --mode arg, show help if necessary +if $opt_help; then + if test "$opt_help" = :; then + func_mode_help + else + { + func_help noexit + for opt_mode in compile link execute install finish uninstall clean; do + func_mode_help + done + } | sed -n '1p; 2,$s/^Usage:/ or: /p' + { + func_help noexit + for opt_mode in compile link execute install finish uninstall clean; do + echo + func_mode_help + done + } | + sed '1d + /^When reporting/,/^Report/{ + H + d + } + $x + /information about other modes/d + /more detailed .*MODE/d + s/^Usage:.*--mode=\([^ ]*\) .*/Description of \1 mode:/' + fi + exit $? +fi + + +# func_mode_execute arg... +func_mode_execute () +{ + $opt_debug + # The first argument is the command name. + cmd="$nonopt" + test -z "$cmd" && \ + func_fatal_help "you must specify a COMMAND" + + # Handle -dlopen flags immediately. + for file in $opt_dlopen; do + test -f "$file" \ + || func_fatal_help "\`$file' is not a file" + + dir= + case $file in + *.la) + func_resolve_sysroot "$file" + file=$func_resolve_sysroot_result + + # Check to see that this really is a libtool archive. + func_lalib_unsafe_p "$file" \ + || func_fatal_help "\`$lib' is not a valid libtool archive" + + # Read the libtool library. + dlname= + library_names= + func_source "$file" + + # Skip this library if it cannot be dlopened. + if test -z "$dlname"; then + # Warn if it was a shared library. + test -n "$library_names" && \ + func_warning "\`$file' was not linked with \`-export-dynamic'" + continue + fi + + func_dirname "$file" "" "." + dir="$func_dirname_result" + + if test -f "$dir/$objdir/$dlname"; then + func_append dir "/$objdir" + else + if test ! -f "$dir/$dlname"; then + func_fatal_error "cannot find \`$dlname' in \`$dir' or \`$dir/$objdir'" + fi + fi + ;; + + *.lo) + # Just add the directory containing the .lo file. + func_dirname "$file" "" "." + dir="$func_dirname_result" + ;; + + *) + func_warning "\`-dlopen' is ignored for non-libtool libraries and objects" + continue + ;; + esac + + # Get the absolute pathname. + absdir=`cd "$dir" && pwd` + test -n "$absdir" && dir="$absdir" + + # Now add the directory to shlibpath_var. + if eval "test -z \"\$$shlibpath_var\""; then + eval "$shlibpath_var=\"\$dir\"" + else + eval "$shlibpath_var=\"\$dir:\$$shlibpath_var\"" + fi + done + + # This variable tells wrapper scripts just to set shlibpath_var + # rather than running their programs. + libtool_execute_magic="$magic" + + # Check if any of the arguments is a wrapper script. + args= + for file + do + case $file in + -* | *.la | *.lo ) ;; + *) + # Do a test to see if this is really a libtool program. + if func_ltwrapper_script_p "$file"; then + func_source "$file" + # Transform arg to wrapped name. + file="$progdir/$program" + elif func_ltwrapper_executable_p "$file"; then + func_ltwrapper_scriptname "$file" + func_source "$func_ltwrapper_scriptname_result" + # Transform arg to wrapped name. + file="$progdir/$program" + fi + ;; + esac + # Quote arguments (to preserve shell metacharacters). + func_append_quoted args "$file" + done + + if test "X$opt_dry_run" = Xfalse; then + if test -n "$shlibpath_var"; then + # Export the shlibpath_var. + eval "export $shlibpath_var" + fi + + # Restore saved environment variables + for lt_var in LANG LANGUAGE LC_ALL LC_CTYPE LC_COLLATE LC_MESSAGES + do + eval "if test \"\${save_$lt_var+set}\" = set; then + $lt_var=\$save_$lt_var; export $lt_var + else + $lt_unset $lt_var + fi" + done + + # Now prepare to actually exec the command. + exec_cmd="\$cmd$args" + else + # Display what would be done. + if test -n "$shlibpath_var"; then + eval "\$ECHO \"\$shlibpath_var=\$$shlibpath_var\"" + echo "export $shlibpath_var" + fi + $ECHO "$cmd$args" + exit $EXIT_SUCCESS + fi +} + +test "$opt_mode" = execute && func_mode_execute ${1+"$@"} + + +# func_mode_finish arg... +func_mode_finish () +{ + $opt_debug + libs= + libdirs= + admincmds= + + for opt in "$nonopt" ${1+"$@"} + do + if test -d "$opt"; then + func_append libdirs " $opt" + + elif test -f "$opt"; then + if func_lalib_unsafe_p "$opt"; then + func_append libs " $opt" + else + func_warning "\`$opt' is not a valid libtool archive" + fi + + else + func_fatal_error "invalid argument \`$opt'" + fi + done + + if test -n "$libs"; then + if test -n "$lt_sysroot"; then + sysroot_regex=`$ECHO "$lt_sysroot" | $SED "$sed_make_literal_regex"` + sysroot_cmd="s/\([ ']\)$sysroot_regex/\1/g;" + else + sysroot_cmd= + fi + + # Remove sysroot references + if $opt_dry_run; then + for lib in $libs; do + echo "removing references to $lt_sysroot and \`=' prefixes from $lib" + done + else + tmpdir=`func_mktempdir` + for lib in $libs; do + sed -e "${sysroot_cmd} s/\([ ']-[LR]\)=/\1/g; s/\([ ']\)=/\1/g" $lib \ + > $tmpdir/tmp-la + mv -f $tmpdir/tmp-la $lib + done + ${RM}r "$tmpdir" + fi + fi + + if test -n "$finish_cmds$finish_eval" && test -n "$libdirs"; then + for libdir in $libdirs; do + if test -n "$finish_cmds"; then + # Do each command in the finish commands. + func_execute_cmds "$finish_cmds" 'admincmds="$admincmds +'"$cmd"'"' + fi + if test -n "$finish_eval"; then + # Do the single finish_eval. + eval cmds=\"$finish_eval\" + $opt_dry_run || eval "$cmds" || func_append admincmds " + $cmds" + fi + done + fi + + # Exit here if they wanted silent mode. + $opt_silent && exit $EXIT_SUCCESS + + if test -n "$finish_cmds$finish_eval" && test -n "$libdirs"; then + echo "----------------------------------------------------------------------" + echo "Libraries have been installed in:" + for libdir in $libdirs; do + $ECHO " $libdir" + done + echo + echo "If you ever happen to want to link against installed libraries" + echo "in a given directory, LIBDIR, you must either use libtool, and" + echo "specify the full pathname of the library, or use the \`-LLIBDIR'" + echo "flag during linking and do at least one of the following:" + if test -n "$shlibpath_var"; then + echo " - add LIBDIR to the \`$shlibpath_var' environment variable" + echo " during execution" + fi + if test -n "$runpath_var"; then + echo " - add LIBDIR to the \`$runpath_var' environment variable" + echo " during linking" + fi + if test -n "$hardcode_libdir_flag_spec"; then + libdir=LIBDIR + eval flag=\"$hardcode_libdir_flag_spec\" + + $ECHO " - use the \`$flag' linker flag" + fi + if test -n "$admincmds"; then + $ECHO " - have your system administrator run these commands:$admincmds" + fi + if test -f /etc/ld.so.conf; then + echo " - have your system administrator add LIBDIR to \`/etc/ld.so.conf'" + fi + echo + + echo "See any operating system documentation about shared libraries for" + case $host in + solaris2.[6789]|solaris2.1[0-9]) + echo "more information, such as the ld(1), crle(1) and ld.so(8) manual" + echo "pages." + ;; + *) + echo "more information, such as the ld(1) and ld.so(8) manual pages." + ;; + esac + echo "----------------------------------------------------------------------" + fi + exit $EXIT_SUCCESS +} + +test "$opt_mode" = finish && func_mode_finish ${1+"$@"} + + +# func_mode_install arg... +func_mode_install () +{ + $opt_debug + # There may be an optional sh(1) argument at the beginning of + # install_prog (especially on Windows NT). + if test "$nonopt" = "$SHELL" || test "$nonopt" = /bin/sh || + # Allow the use of GNU shtool's install command. + case $nonopt in *shtool*) :;; *) false;; esac; then + # Aesthetically quote it. + func_quote_for_eval "$nonopt" + install_prog="$func_quote_for_eval_result " + arg=$1 + shift + else + install_prog= + arg=$nonopt + fi + + # The real first argument should be the name of the installation program. + # Aesthetically quote it. + func_quote_for_eval "$arg" + func_append install_prog "$func_quote_for_eval_result" + install_shared_prog=$install_prog + case " $install_prog " in + *[\\\ /]cp\ *) install_cp=: ;; + *) install_cp=false ;; + esac + + # We need to accept at least all the BSD install flags. + dest= + files= + opts= + prev= + install_type= + isdir=no + stripme= + no_mode=: + for arg + do + arg2= + if test -n "$dest"; then + func_append files " $dest" + dest=$arg + continue + fi + + case $arg in + -d) isdir=yes ;; + -f) + if $install_cp; then :; else + prev=$arg + fi + ;; + -g | -m | -o) + prev=$arg + ;; + -s) + stripme=" -s" + continue + ;; + -*) + ;; + *) + # If the previous option needed an argument, then skip it. + if test -n "$prev"; then + if test "x$prev" = x-m && test -n "$install_override_mode"; then + arg2=$install_override_mode + no_mode=false + fi + prev= + else + dest=$arg + continue + fi + ;; + esac + + # Aesthetically quote the argument. + func_quote_for_eval "$arg" + func_append install_prog " $func_quote_for_eval_result" + if test -n "$arg2"; then + func_quote_for_eval "$arg2" + fi + func_append install_shared_prog " $func_quote_for_eval_result" + done + + test -z "$install_prog" && \ + func_fatal_help "you must specify an install program" + + test -n "$prev" && \ + func_fatal_help "the \`$prev' option requires an argument" + + if test -n "$install_override_mode" && $no_mode; then + if $install_cp; then :; else + func_quote_for_eval "$install_override_mode" + func_append install_shared_prog " -m $func_quote_for_eval_result" + fi + fi + + if test -z "$files"; then + if test -z "$dest"; then + func_fatal_help "no file or destination specified" + else + func_fatal_help "you must specify a destination" + fi + fi + + # Strip any trailing slash from the destination. + func_stripname '' '/' "$dest" + dest=$func_stripname_result + + # Check to see that the destination is a directory. + test -d "$dest" && isdir=yes + if test "$isdir" = yes; then + destdir="$dest" + destname= + else + func_dirname_and_basename "$dest" "" "." + destdir="$func_dirname_result" + destname="$func_basename_result" + + # Not a directory, so check to see that there is only one file specified. + set dummy $files; shift + test "$#" -gt 1 && \ + func_fatal_help "\`$dest' is not a directory" + fi + case $destdir in + [\\/]* | [A-Za-z]:[\\/]*) ;; + *) + for file in $files; do + case $file in + *.lo) ;; + *) + func_fatal_help "\`$destdir' must be an absolute directory name" + ;; + esac + done + ;; + esac + + # This variable tells wrapper scripts just to set variables rather + # than running their programs. + libtool_install_magic="$magic" + + staticlibs= + future_libdirs= + current_libdirs= + for file in $files; do + + # Do each installation. + case $file in + *.$libext) + # Do the static libraries later. + func_append staticlibs " $file" + ;; + + *.la) + func_resolve_sysroot "$file" + file=$func_resolve_sysroot_result + + # Check to see that this really is a libtool archive. + func_lalib_unsafe_p "$file" \ + || func_fatal_help "\`$file' is not a valid libtool archive" + + library_names= + old_library= + relink_command= + func_source "$file" + + # Add the libdir to current_libdirs if it is the destination. + if test "X$destdir" = "X$libdir"; then + case "$current_libdirs " in + *" $libdir "*) ;; + *) func_append current_libdirs " $libdir" ;; + esac + else + # Note the libdir as a future libdir. + case "$future_libdirs " in + *" $libdir "*) ;; + *) func_append future_libdirs " $libdir" ;; + esac + fi + + func_dirname "$file" "/" "" + dir="$func_dirname_result" + func_append dir "$objdir" + + if test -n "$relink_command"; then + # Determine the prefix the user has applied to our future dir. + inst_prefix_dir=`$ECHO "$destdir" | $SED -e "s%$libdir\$%%"` + + # Don't allow the user to place us outside of our expected + # location b/c this prevents finding dependent libraries that + # are installed to the same prefix. + # At present, this check doesn't affect windows .dll's that + # are installed into $libdir/../bin (currently, that works fine) + # but it's something to keep an eye on. + test "$inst_prefix_dir" = "$destdir" && \ + func_fatal_error "error: cannot install \`$file' to a directory not ending in $libdir" + + if test -n "$inst_prefix_dir"; then + # Stick the inst_prefix_dir data into the link command. + relink_command=`$ECHO "$relink_command" | $SED "s%@inst_prefix_dir@%-inst-prefix-dir $inst_prefix_dir%"` + else + relink_command=`$ECHO "$relink_command" | $SED "s%@inst_prefix_dir@%%"` + fi + + func_warning "relinking \`$file'" + func_show_eval "$relink_command" \ + 'func_fatal_error "error: relink \`$file'\'' with the above command before installing it"' + fi + + # See the names of the shared library. + set dummy $library_names; shift + if test -n "$1"; then + realname="$1" + shift + + srcname="$realname" + test -n "$relink_command" && srcname="$realname"T + + # Install the shared library and build the symlinks. + func_show_eval "$install_shared_prog $dir/$srcname $destdir/$realname" \ + 'exit $?' + tstripme="$stripme" + case $host_os in + cygwin* | mingw* | pw32* | cegcc*) + case $realname in + *.dll.a) + tstripme="" + ;; + esac + ;; + esac + if test -n "$tstripme" && test -n "$striplib"; then + func_show_eval "$striplib $destdir/$realname" 'exit $?' + fi + + if test "$#" -gt 0; then + # Delete the old symlinks, and create new ones. + # Try `ln -sf' first, because the `ln' binary might depend on + # the symlink we replace! Solaris /bin/ln does not understand -f, + # so we also need to try rm && ln -s. + for linkname + do + test "$linkname" != "$realname" \ + && func_show_eval "(cd $destdir && { $LN_S -f $realname $linkname || { $RM $linkname && $LN_S $realname $linkname; }; })" + done + fi + + # Do each command in the postinstall commands. + lib="$destdir/$realname" + func_execute_cmds "$postinstall_cmds" 'exit $?' + fi + + # Install the pseudo-library for information purposes. + func_basename "$file" + name="$func_basename_result" + instname="$dir/$name"i + func_show_eval "$install_prog $instname $destdir/$name" 'exit $?' + + # Maybe install the static library, too. + test -n "$old_library" && func_append staticlibs " $dir/$old_library" + ;; + + *.lo) + # Install (i.e. copy) a libtool object. + + # Figure out destination file name, if it wasn't already specified. + if test -n "$destname"; then + destfile="$destdir/$destname" + else + func_basename "$file" + destfile="$func_basename_result" + destfile="$destdir/$destfile" + fi + + # Deduce the name of the destination old-style object file. + case $destfile in + *.lo) + func_lo2o "$destfile" + staticdest=$func_lo2o_result + ;; + *.$objext) + staticdest="$destfile" + destfile= + ;; + *) + func_fatal_help "cannot copy a libtool object to \`$destfile'" + ;; + esac + + # Install the libtool object if requested. + test -n "$destfile" && \ + func_show_eval "$install_prog $file $destfile" 'exit $?' + + # Install the old object if enabled. + if test "$build_old_libs" = yes; then + # Deduce the name of the old-style object file. + func_lo2o "$file" + staticobj=$func_lo2o_result + func_show_eval "$install_prog \$staticobj \$staticdest" 'exit $?' + fi + exit $EXIT_SUCCESS + ;; + + *) + # Figure out destination file name, if it wasn't already specified. + if test -n "$destname"; then + destfile="$destdir/$destname" + else + func_basename "$file" + destfile="$func_basename_result" + destfile="$destdir/$destfile" + fi + + # If the file is missing, and there is a .exe on the end, strip it + # because it is most likely a libtool script we actually want to + # install + stripped_ext="" + case $file in + *.exe) + if test ! -f "$file"; then + func_stripname '' '.exe' "$file" + file=$func_stripname_result + stripped_ext=".exe" + fi + ;; + esac + + # Do a test to see if this is really a libtool program. + case $host in + *cygwin* | *mingw*) + if func_ltwrapper_executable_p "$file"; then + func_ltwrapper_scriptname "$file" + wrapper=$func_ltwrapper_scriptname_result + else + func_stripname '' '.exe' "$file" + wrapper=$func_stripname_result + fi + ;; + *) + wrapper=$file + ;; + esac + if func_ltwrapper_script_p "$wrapper"; then + notinst_deplibs= + relink_command= + + func_source "$wrapper" + + # Check the variables that should have been set. + test -z "$generated_by_libtool_version" && \ + func_fatal_error "invalid libtool wrapper script \`$wrapper'" + + finalize=yes + for lib in $notinst_deplibs; do + # Check to see that each library is installed. + libdir= + if test -f "$lib"; then + func_source "$lib" + fi + libfile="$libdir/"`$ECHO "$lib" | $SED 's%^.*/%%g'` ### testsuite: skip nested quoting test + if test -n "$libdir" && test ! -f "$libfile"; then + func_warning "\`$lib' has not been installed in \`$libdir'" + finalize=no + fi + done + + relink_command= + func_source "$wrapper" + + outputname= + if test "$fast_install" = no && test -n "$relink_command"; then + $opt_dry_run || { + if test "$finalize" = yes; then + tmpdir=`func_mktempdir` + func_basename "$file$stripped_ext" + file="$func_basename_result" + outputname="$tmpdir/$file" + # Replace the output file specification. + relink_command=`$ECHO "$relink_command" | $SED 's%@OUTPUT@%'"$outputname"'%g'` + + $opt_silent || { + func_quote_for_expand "$relink_command" + eval "func_echo $func_quote_for_expand_result" + } + if eval "$relink_command"; then : + else + func_error "error: relink \`$file' with the above command before installing it" + $opt_dry_run || ${RM}r "$tmpdir" + continue + fi + file="$outputname" + else + func_warning "cannot relink \`$file'" + fi + } + else + # Install the binary that we compiled earlier. + file=`$ECHO "$file$stripped_ext" | $SED "s%\([^/]*\)$%$objdir/\1%"` + fi + fi + + # remove .exe since cygwin /usr/bin/install will append another + # one anyway + case $install_prog,$host in + */usr/bin/install*,*cygwin*) + case $file:$destfile in + *.exe:*.exe) + # this is ok + ;; + *.exe:*) + destfile=$destfile.exe + ;; + *:*.exe) + func_stripname '' '.exe' "$destfile" + destfile=$func_stripname_result + ;; + esac + ;; + esac + func_show_eval "$install_prog\$stripme \$file \$destfile" 'exit $?' + $opt_dry_run || if test -n "$outputname"; then + ${RM}r "$tmpdir" + fi + ;; + esac + done + + for file in $staticlibs; do + func_basename "$file" + name="$func_basename_result" + + # Set up the ranlib parameters. + oldlib="$destdir/$name" + func_to_tool_file "$oldlib" func_convert_file_msys_to_w32 + tool_oldlib=$func_to_tool_file_result + + func_show_eval "$install_prog \$file \$oldlib" 'exit $?' + + if test -n "$stripme" && test -n "$old_striplib"; then + func_show_eval "$old_striplib $tool_oldlib" 'exit $?' + fi + + # Do each command in the postinstall commands. + func_execute_cmds "$old_postinstall_cmds" 'exit $?' + done + + test -n "$future_libdirs" && \ + func_warning "remember to run \`$progname --finish$future_libdirs'" + + if test -n "$current_libdirs"; then + # Maybe just do a dry run. + $opt_dry_run && current_libdirs=" -n$current_libdirs" + exec_cmd='$SHELL $progpath $preserve_args --finish$current_libdirs' + else + exit $EXIT_SUCCESS + fi +} + +test "$opt_mode" = install && func_mode_install ${1+"$@"} + + +# func_generate_dlsyms outputname originator pic_p +# Extract symbols from dlprefiles and create ${outputname}S.o with +# a dlpreopen symbol table. +func_generate_dlsyms () +{ + $opt_debug + my_outputname="$1" + my_originator="$2" + my_pic_p="${3-no}" + my_prefix=`$ECHO "$my_originator" | sed 's%[^a-zA-Z0-9]%_%g'` + my_dlsyms= + + if test -n "$dlfiles$dlprefiles" || test "$dlself" != no; then + if test -n "$NM" && test -n "$global_symbol_pipe"; then + my_dlsyms="${my_outputname}S.c" + else + func_error "not configured to extract global symbols from dlpreopened files" + fi + fi + + if test -n "$my_dlsyms"; then + case $my_dlsyms in + "") ;; + *.c) + # Discover the nlist of each of the dlfiles. + nlist="$output_objdir/${my_outputname}.nm" + + func_show_eval "$RM $nlist ${nlist}S ${nlist}T" + + # Parse the name list into a source file. + func_verbose "creating $output_objdir/$my_dlsyms" + + $opt_dry_run || $ECHO > "$output_objdir/$my_dlsyms" "\ +/* $my_dlsyms - symbol resolution table for \`$my_outputname' dlsym emulation. */ +/* Generated by $PROGRAM (GNU $PACKAGE$TIMESTAMP) $VERSION */ + +#ifdef __cplusplus +extern \"C\" { +#endif + +#if defined(__GNUC__) && (((__GNUC__ == 4) && (__GNUC_MINOR__ >= 4)) || (__GNUC__ > 4)) +#pragma GCC diagnostic ignored \"-Wstrict-prototypes\" +#endif + +/* Keep this code in sync between libtool.m4, ltmain, lt_system.h, and tests. */ +#if defined(_WIN32) || defined(__CYGWIN__) || defined(_WIN32_WCE) +/* DATA imports from DLLs on WIN32 con't be const, because runtime + relocations are performed -- see ld's documentation on pseudo-relocs. */ +# define LT_DLSYM_CONST +#elif defined(__osf__) +/* This system does not cope well with relocations in const data. */ +# define LT_DLSYM_CONST +#else +# define LT_DLSYM_CONST const +#endif + +/* External symbol declarations for the compiler. */\ +" + + if test "$dlself" = yes; then + func_verbose "generating symbol list for \`$output'" + + $opt_dry_run || echo ': @PROGRAM@ ' > "$nlist" + + # Add our own program objects to the symbol list. + progfiles=`$ECHO "$objs$old_deplibs" | $SP2NL | $SED "$lo2o" | $NL2SP` + for progfile in $progfiles; do + func_to_tool_file "$progfile" func_convert_file_msys_to_w32 + func_verbose "extracting global C symbols from \`$func_to_tool_file_result'" + $opt_dry_run || eval "$NM $func_to_tool_file_result | $global_symbol_pipe >> '$nlist'" + done + + if test -n "$exclude_expsyms"; then + $opt_dry_run || { + eval '$EGREP -v " ($exclude_expsyms)$" "$nlist" > "$nlist"T' + eval '$MV "$nlist"T "$nlist"' + } + fi + + if test -n "$export_symbols_regex"; then + $opt_dry_run || { + eval '$EGREP -e "$export_symbols_regex" "$nlist" > "$nlist"T' + eval '$MV "$nlist"T "$nlist"' + } + fi + + # Prepare the list of exported symbols + if test -z "$export_symbols"; then + export_symbols="$output_objdir/$outputname.exp" + $opt_dry_run || { + $RM $export_symbols + eval "${SED} -n -e '/^: @PROGRAM@ $/d' -e 's/^.* \(.*\)$/\1/p' "'< "$nlist" > "$export_symbols"' + case $host in + *cygwin* | *mingw* | *cegcc* ) + eval "echo EXPORTS "'> "$output_objdir/$outputname.def"' + eval 'cat "$export_symbols" >> "$output_objdir/$outputname.def"' + ;; + esac + } + else + $opt_dry_run || { + eval "${SED} -e 's/\([].[*^$]\)/\\\\\1/g' -e 's/^/ /' -e 's/$/$/'"' < "$export_symbols" > "$output_objdir/$outputname.exp"' + eval '$GREP -f "$output_objdir/$outputname.exp" < "$nlist" > "$nlist"T' + eval '$MV "$nlist"T "$nlist"' + case $host in + *cygwin* | *mingw* | *cegcc* ) + eval "echo EXPORTS "'> "$output_objdir/$outputname.def"' + eval 'cat "$nlist" >> "$output_objdir/$outputname.def"' + ;; + esac + } + fi + fi + + for dlprefile in $dlprefiles; do + func_verbose "extracting global C symbols from \`$dlprefile'" + func_basename "$dlprefile" + name="$func_basename_result" + case $host in + *cygwin* | *mingw* | *cegcc* ) + # if an import library, we need to obtain dlname + if func_win32_import_lib_p "$dlprefile"; then + func_tr_sh "$dlprefile" + eval "curr_lafile=\$libfile_$func_tr_sh_result" + dlprefile_dlbasename="" + if test -n "$curr_lafile" && func_lalib_p "$curr_lafile"; then + # Use subshell, to avoid clobbering current variable values + dlprefile_dlname=`source "$curr_lafile" && echo "$dlname"` + if test -n "$dlprefile_dlname" ; then + func_basename "$dlprefile_dlname" + dlprefile_dlbasename="$func_basename_result" + else + # no lafile. user explicitly requested -dlpreopen . + $sharedlib_from_linklib_cmd "$dlprefile" + dlprefile_dlbasename=$sharedlib_from_linklib_result + fi + fi + $opt_dry_run || { + if test -n "$dlprefile_dlbasename" ; then + eval '$ECHO ": $dlprefile_dlbasename" >> "$nlist"' + else + func_warning "Could not compute DLL name from $name" + eval '$ECHO ": $name " >> "$nlist"' + fi + func_to_tool_file "$dlprefile" func_convert_file_msys_to_w32 + eval "$NM \"$func_to_tool_file_result\" 2>/dev/null | $global_symbol_pipe | + $SED -e '/I __imp/d' -e 's/I __nm_/D /;s/_nm__//' >> '$nlist'" + } + else # not an import lib + $opt_dry_run || { + eval '$ECHO ": $name " >> "$nlist"' + func_to_tool_file "$dlprefile" func_convert_file_msys_to_w32 + eval "$NM \"$func_to_tool_file_result\" 2>/dev/null | $global_symbol_pipe >> '$nlist'" + } + fi + ;; + *) + $opt_dry_run || { + eval '$ECHO ": $name " >> "$nlist"' + func_to_tool_file "$dlprefile" func_convert_file_msys_to_w32 + eval "$NM \"$func_to_tool_file_result\" 2>/dev/null | $global_symbol_pipe >> '$nlist'" + } + ;; + esac + done + + $opt_dry_run || { + # Make sure we have at least an empty file. + test -f "$nlist" || : > "$nlist" + + if test -n "$exclude_expsyms"; then + $EGREP -v " ($exclude_expsyms)$" "$nlist" > "$nlist"T + $MV "$nlist"T "$nlist" + fi + + # Try sorting and uniquifying the output. + if $GREP -v "^: " < "$nlist" | + if sort -k 3 /dev/null 2>&1; then + sort -k 3 + else + sort +2 + fi | + uniq > "$nlist"S; then + : + else + $GREP -v "^: " < "$nlist" > "$nlist"S + fi + + if test -f "$nlist"S; then + eval "$global_symbol_to_cdecl"' < "$nlist"S >> "$output_objdir/$my_dlsyms"' + else + echo '/* NONE */' >> "$output_objdir/$my_dlsyms" + fi + + echo >> "$output_objdir/$my_dlsyms" "\ + +/* The mapping between symbol names and symbols. */ +typedef struct { + const char *name; + void *address; +} lt_dlsymlist; +extern LT_DLSYM_CONST lt_dlsymlist +lt_${my_prefix}_LTX_preloaded_symbols[]; +LT_DLSYM_CONST lt_dlsymlist +lt_${my_prefix}_LTX_preloaded_symbols[] = +{\ + { \"$my_originator\", (void *) 0 }," + + case $need_lib_prefix in + no) + eval "$global_symbol_to_c_name_address" < "$nlist" >> "$output_objdir/$my_dlsyms" + ;; + *) + eval "$global_symbol_to_c_name_address_lib_prefix" < "$nlist" >> "$output_objdir/$my_dlsyms" + ;; + esac + echo >> "$output_objdir/$my_dlsyms" "\ + {0, (void *) 0} +}; + +/* This works around a problem in FreeBSD linker */ +#ifdef FREEBSD_WORKAROUND +static const void *lt_preloaded_setup() { + return lt_${my_prefix}_LTX_preloaded_symbols; +} +#endif + +#ifdef __cplusplus +} +#endif\ +" + } # !$opt_dry_run + + pic_flag_for_symtable= + case "$compile_command " in + *" -static "*) ;; + *) + case $host in + # compiling the symbol table file with pic_flag works around + # a FreeBSD bug that causes programs to crash when -lm is + # linked before any other PIC object. But we must not use + # pic_flag when linking with -static. The problem exists in + # FreeBSD 2.2.6 and is fixed in FreeBSD 3.1. + *-*-freebsd2.*|*-*-freebsd3.0*|*-*-freebsdelf3.0*) + pic_flag_for_symtable=" $pic_flag -DFREEBSD_WORKAROUND" ;; + *-*-hpux*) + pic_flag_for_symtable=" $pic_flag" ;; + *) + if test "X$my_pic_p" != Xno; then + pic_flag_for_symtable=" $pic_flag" + fi + ;; + esac + ;; + esac + symtab_cflags= + for arg in $LTCFLAGS; do + case $arg in + -pie | -fpie | -fPIE) ;; + *) func_append symtab_cflags " $arg" ;; + esac + done + + # Now compile the dynamic symbol file. + func_show_eval '(cd $output_objdir && $LTCC$symtab_cflags -c$no_builtin_flag$pic_flag_for_symtable "$my_dlsyms")' 'exit $?' + + # Clean up the generated files. + func_show_eval '$RM "$output_objdir/$my_dlsyms" "$nlist" "${nlist}S" "${nlist}T"' + + # Transform the symbol file into the correct name. + symfileobj="$output_objdir/${my_outputname}S.$objext" + case $host in + *cygwin* | *mingw* | *cegcc* ) + if test -f "$output_objdir/$my_outputname.def"; then + compile_command=`$ECHO "$compile_command" | $SED "s%@SYMFILE@%$output_objdir/$my_outputname.def $symfileobj%"` + finalize_command=`$ECHO "$finalize_command" | $SED "s%@SYMFILE@%$output_objdir/$my_outputname.def $symfileobj%"` + else + compile_command=`$ECHO "$compile_command" | $SED "s%@SYMFILE@%$symfileobj%"` + finalize_command=`$ECHO "$finalize_command" | $SED "s%@SYMFILE@%$symfileobj%"` + fi + ;; + *) + compile_command=`$ECHO "$compile_command" | $SED "s%@SYMFILE@%$symfileobj%"` + finalize_command=`$ECHO "$finalize_command" | $SED "s%@SYMFILE@%$symfileobj%"` + ;; + esac + ;; + *) + func_fatal_error "unknown suffix for \`$my_dlsyms'" + ;; + esac + else + # We keep going just in case the user didn't refer to + # lt_preloaded_symbols. The linker will fail if global_symbol_pipe + # really was required. + + # Nullify the symbol file. + compile_command=`$ECHO "$compile_command" | $SED "s% @SYMFILE@%%"` + finalize_command=`$ECHO "$finalize_command" | $SED "s% @SYMFILE@%%"` + fi +} + +# func_win32_libid arg +# return the library type of file 'arg' +# +# Need a lot of goo to handle *both* DLLs and import libs +# Has to be a shell function in order to 'eat' the argument +# that is supplied when $file_magic_command is called. +# Despite the name, also deal with 64 bit binaries. +func_win32_libid () +{ + $opt_debug + win32_libid_type="unknown" + win32_fileres=`file -L $1 2>/dev/null` + case $win32_fileres in + *ar\ archive\ import\ library*) # definitely import + win32_libid_type="x86 archive import" + ;; + *ar\ archive*) # could be an import, or static + # Keep the egrep pattern in sync with the one in _LT_CHECK_MAGIC_METHOD. + if eval $OBJDUMP -f $1 | $SED -e '10q' 2>/dev/null | + $EGREP 'file format (pei*-i386(.*architecture: i386)?|pe-arm-wince|pe-x86-64)' >/dev/null; then + func_to_tool_file "$1" func_convert_file_msys_to_w32 + win32_nmres=`eval $NM -f posix -A \"$func_to_tool_file_result\" | + $SED -n -e ' + 1,100{ + / I /{ + s,.*,import, + p + q + } + }'` + case $win32_nmres in + import*) win32_libid_type="x86 archive import";; + *) win32_libid_type="x86 archive static";; + esac + fi + ;; + *DLL*) + win32_libid_type="x86 DLL" + ;; + *executable*) # but shell scripts are "executable" too... + case $win32_fileres in + *MS\ Windows\ PE\ Intel*) + win32_libid_type="x86 DLL" + ;; + esac + ;; + esac + $ECHO "$win32_libid_type" +} + +# func_cygming_dll_for_implib ARG +# +# Platform-specific function to extract the +# name of the DLL associated with the specified +# import library ARG. +# Invoked by eval'ing the libtool variable +# $sharedlib_from_linklib_cmd +# Result is available in the variable +# $sharedlib_from_linklib_result +func_cygming_dll_for_implib () +{ + $opt_debug + sharedlib_from_linklib_result=`$DLLTOOL --identify-strict --identify "$1"` +} + +# func_cygming_dll_for_implib_fallback_core SECTION_NAME LIBNAMEs +# +# The is the core of a fallback implementation of a +# platform-specific function to extract the name of the +# DLL associated with the specified import library LIBNAME. +# +# SECTION_NAME is either .idata$6 or .idata$7, depending +# on the platform and compiler that created the implib. +# +# Echos the name of the DLL associated with the +# specified import library. +func_cygming_dll_for_implib_fallback_core () +{ + $opt_debug + match_literal=`$ECHO "$1" | $SED "$sed_make_literal_regex"` + $OBJDUMP -s --section "$1" "$2" 2>/dev/null | + $SED '/^Contents of section '"$match_literal"':/{ + # Place marker at beginning of archive member dllname section + s/.*/====MARK====/ + p + d + } + # These lines can sometimes be longer than 43 characters, but + # are always uninteresting + /:[ ]*file format pe[i]\{,1\}-/d + /^In archive [^:]*:/d + # Ensure marker is printed + /^====MARK====/p + # Remove all lines with less than 43 characters + /^.\{43\}/!d + # From remaining lines, remove first 43 characters + s/^.\{43\}//' | + $SED -n ' + # Join marker and all lines until next marker into a single line + /^====MARK====/ b para + H + $ b para + b + :para + x + s/\n//g + # Remove the marker + s/^====MARK====// + # Remove trailing dots and whitespace + s/[\. \t]*$// + # Print + /./p' | + # we now have a list, one entry per line, of the stringified + # contents of the appropriate section of all members of the + # archive which possess that section. Heuristic: eliminate + # all those which have a first or second character that is + # a '.' (that is, objdump's representation of an unprintable + # character.) This should work for all archives with less than + # 0x302f exports -- but will fail for DLLs whose name actually + # begins with a literal '.' or a single character followed by + # a '.'. + # + # Of those that remain, print the first one. + $SED -e '/^\./d;/^.\./d;q' +} + +# func_cygming_gnu_implib_p ARG +# This predicate returns with zero status (TRUE) if +# ARG is a GNU/binutils-style import library. Returns +# with nonzero status (FALSE) otherwise. +func_cygming_gnu_implib_p () +{ + $opt_debug + func_to_tool_file "$1" func_convert_file_msys_to_w32 + func_cygming_gnu_implib_tmp=`$NM "$func_to_tool_file_result" | eval "$global_symbol_pipe" | $EGREP ' (_head_[A-Za-z0-9_]+_[ad]l*|[A-Za-z0-9_]+_[ad]l*_iname)$'` + test -n "$func_cygming_gnu_implib_tmp" +} + +# func_cygming_ms_implib_p ARG +# This predicate returns with zero status (TRUE) if +# ARG is an MS-style import library. Returns +# with nonzero status (FALSE) otherwise. +func_cygming_ms_implib_p () +{ + $opt_debug + func_to_tool_file "$1" func_convert_file_msys_to_w32 + func_cygming_ms_implib_tmp=`$NM "$func_to_tool_file_result" | eval "$global_symbol_pipe" | $GREP '_NULL_IMPORT_DESCRIPTOR'` + test -n "$func_cygming_ms_implib_tmp" +} + +# func_cygming_dll_for_implib_fallback ARG +# Platform-specific function to extract the +# name of the DLL associated with the specified +# import library ARG. +# +# This fallback implementation is for use when $DLLTOOL +# does not support the --identify-strict option. +# Invoked by eval'ing the libtool variable +# $sharedlib_from_linklib_cmd +# Result is available in the variable +# $sharedlib_from_linklib_result +func_cygming_dll_for_implib_fallback () +{ + $opt_debug + if func_cygming_gnu_implib_p "$1" ; then + # binutils import library + sharedlib_from_linklib_result=`func_cygming_dll_for_implib_fallback_core '.idata$7' "$1"` + elif func_cygming_ms_implib_p "$1" ; then + # ms-generated import library + sharedlib_from_linklib_result=`func_cygming_dll_for_implib_fallback_core '.idata$6' "$1"` + else + # unknown + sharedlib_from_linklib_result="" + fi +} + + +# func_extract_an_archive dir oldlib +func_extract_an_archive () +{ + $opt_debug + f_ex_an_ar_dir="$1"; shift + f_ex_an_ar_oldlib="$1" + if test "$lock_old_archive_extraction" = yes; then + lockfile=$f_ex_an_ar_oldlib.lock + until $opt_dry_run || ln "$progpath" "$lockfile" 2>/dev/null; do + func_echo "Waiting for $lockfile to be removed" + sleep 2 + done + fi + func_show_eval "(cd \$f_ex_an_ar_dir && $AR x \"\$f_ex_an_ar_oldlib\")" \ + 'stat=$?; rm -f "$lockfile"; exit $stat' + if test "$lock_old_archive_extraction" = yes; then + $opt_dry_run || rm -f "$lockfile" + fi + if ($AR t "$f_ex_an_ar_oldlib" | sort | sort -uc >/dev/null 2>&1); then + : + else + func_fatal_error "object name conflicts in archive: $f_ex_an_ar_dir/$f_ex_an_ar_oldlib" + fi +} + + +# func_extract_archives gentop oldlib ... +func_extract_archives () +{ + $opt_debug + my_gentop="$1"; shift + my_oldlibs=${1+"$@"} + my_oldobjs="" + my_xlib="" + my_xabs="" + my_xdir="" + + for my_xlib in $my_oldlibs; do + # Extract the objects. + case $my_xlib in + [\\/]* | [A-Za-z]:[\\/]*) my_xabs="$my_xlib" ;; + *) my_xabs=`pwd`"/$my_xlib" ;; + esac + func_basename "$my_xlib" + my_xlib="$func_basename_result" + my_xlib_u=$my_xlib + while :; do + case " $extracted_archives " in + *" $my_xlib_u "*) + func_arith $extracted_serial + 1 + extracted_serial=$func_arith_result + my_xlib_u=lt$extracted_serial-$my_xlib ;; + *) break ;; + esac + done + extracted_archives="$extracted_archives $my_xlib_u" + my_xdir="$my_gentop/$my_xlib_u" + + func_mkdir_p "$my_xdir" + + case $host in + *-darwin*) + func_verbose "Extracting $my_xabs" + # Do not bother doing anything if just a dry run + $opt_dry_run || { + darwin_orig_dir=`pwd` + cd $my_xdir || exit $? + darwin_archive=$my_xabs + darwin_curdir=`pwd` + darwin_base_archive=`basename "$darwin_archive"` + darwin_arches=`$LIPO -info "$darwin_archive" 2>/dev/null | $GREP Architectures 2>/dev/null || true` + if test -n "$darwin_arches"; then + darwin_arches=`$ECHO "$darwin_arches" | $SED -e 's/.*are://'` + darwin_arch= + func_verbose "$darwin_base_archive has multiple architectures $darwin_arches" + for darwin_arch in $darwin_arches ; do + func_mkdir_p "unfat-$$/${darwin_base_archive}-${darwin_arch}" + $LIPO -thin $darwin_arch -output "unfat-$$/${darwin_base_archive}-${darwin_arch}/${darwin_base_archive}" "${darwin_archive}" + cd "unfat-$$/${darwin_base_archive}-${darwin_arch}" + func_extract_an_archive "`pwd`" "${darwin_base_archive}" + cd "$darwin_curdir" + $RM "unfat-$$/${darwin_base_archive}-${darwin_arch}/${darwin_base_archive}" + done # $darwin_arches + ## Okay now we've a bunch of thin objects, gotta fatten them up :) + darwin_filelist=`find unfat-$$ -type f -name \*.o -print -o -name \*.lo -print | $SED -e "$basename" | sort -u` + darwin_file= + darwin_files= + for darwin_file in $darwin_filelist; do + darwin_files=`find unfat-$$ -name $darwin_file -print | sort | $NL2SP` + $LIPO -create -output "$darwin_file" $darwin_files + done # $darwin_filelist + $RM -rf unfat-$$ + cd "$darwin_orig_dir" + else + cd $darwin_orig_dir + func_extract_an_archive "$my_xdir" "$my_xabs" + fi # $darwin_arches + } # !$opt_dry_run + ;; + *) + func_extract_an_archive "$my_xdir" "$my_xabs" + ;; + esac + my_oldobjs="$my_oldobjs "`find $my_xdir -name \*.$objext -print -o -name \*.lo -print | sort | $NL2SP` + done + + func_extract_archives_result="$my_oldobjs" +} + + +# func_emit_wrapper [arg=no] +# +# Emit a libtool wrapper script on stdout. +# Don't directly open a file because we may want to +# incorporate the script contents within a cygwin/mingw +# wrapper executable. Must ONLY be called from within +# func_mode_link because it depends on a number of variables +# set therein. +# +# ARG is the value that the WRAPPER_SCRIPT_BELONGS_IN_OBJDIR +# variable will take. If 'yes', then the emitted script +# will assume that the directory in which it is stored is +# the $objdir directory. This is a cygwin/mingw-specific +# behavior. +func_emit_wrapper () +{ + func_emit_wrapper_arg1=${1-no} + + $ECHO "\ +#! $SHELL + +# $output - temporary wrapper script for $objdir/$outputname +# Generated by $PROGRAM (GNU $PACKAGE$TIMESTAMP) $VERSION +# +# The $output program cannot be directly executed until all the libtool +# libraries that it depends on are installed. +# +# This wrapper script should never be moved out of the build directory. +# If it is, it will not operate correctly. + +# Sed substitution that helps us do robust quoting. It backslashifies +# metacharacters that are still active within double-quoted strings. +sed_quote_subst='$sed_quote_subst' + +# Be Bourne compatible +if test -n \"\${ZSH_VERSION+set}\" && (emulate sh) >/dev/null 2>&1; then + emulate sh + NULLCMD=: + # Zsh 3.x and 4.x performs word splitting on \${1+\"\$@\"}, which + # is contrary to our usage. Disable this feature. + alias -g '\${1+\"\$@\"}'='\"\$@\"' + setopt NO_GLOB_SUBST +else + case \`(set -o) 2>/dev/null\` in *posix*) set -o posix;; esac +fi +BIN_SH=xpg4; export BIN_SH # for Tru64 +DUALCASE=1; export DUALCASE # for MKS sh + +# The HP-UX ksh and POSIX shell print the target directory to stdout +# if CDPATH is set. +(unset CDPATH) >/dev/null 2>&1 && unset CDPATH + +relink_command=\"$relink_command\" + +# This environment variable determines our operation mode. +if test \"\$libtool_install_magic\" = \"$magic\"; then + # install mode needs the following variables: + generated_by_libtool_version='$macro_version' + notinst_deplibs='$notinst_deplibs' +else + # When we are sourced in execute mode, \$file and \$ECHO are already set. + if test \"\$libtool_execute_magic\" != \"$magic\"; then + file=\"\$0\"" + + qECHO=`$ECHO "$ECHO" | $SED "$sed_quote_subst"` + $ECHO "\ + +# A function that is used when there is no print builtin or printf. +func_fallback_echo () +{ + eval 'cat <<_LTECHO_EOF +\$1 +_LTECHO_EOF' +} + ECHO=\"$qECHO\" + fi + +# Very basic option parsing. These options are (a) specific to +# the libtool wrapper, (b) are identical between the wrapper +# /script/ and the wrapper /executable/ which is used only on +# windows platforms, and (c) all begin with the string "--lt-" +# (application programs are unlikely to have options which match +# this pattern). +# +# There are only two supported options: --lt-debug and +# --lt-dump-script. There is, deliberately, no --lt-help. +# +# The first argument to this parsing function should be the +# script's $0 value, followed by "$@". +lt_option_debug= +func_parse_lt_options () +{ + lt_script_arg0=\$0 + shift + for lt_opt + do + case \"\$lt_opt\" in + --lt-debug) lt_option_debug=1 ;; + --lt-dump-script) + lt_dump_D=\`\$ECHO \"X\$lt_script_arg0\" | $SED -e 's/^X//' -e 's%/[^/]*$%%'\` + test \"X\$lt_dump_D\" = \"X\$lt_script_arg0\" && lt_dump_D=. + lt_dump_F=\`\$ECHO \"X\$lt_script_arg0\" | $SED -e 's/^X//' -e 's%^.*/%%'\` + cat \"\$lt_dump_D/\$lt_dump_F\" + exit 0 + ;; + --lt-*) + \$ECHO \"Unrecognized --lt- option: '\$lt_opt'\" 1>&2 + exit 1 + ;; + esac + done + + # Print the debug banner immediately: + if test -n \"\$lt_option_debug\"; then + echo \"${outputname}:${output}:\${LINENO}: libtool wrapper (GNU $PACKAGE$TIMESTAMP) $VERSION\" 1>&2 + fi +} + +# Used when --lt-debug. Prints its arguments to stdout +# (redirection is the responsibility of the caller) +func_lt_dump_args () +{ + lt_dump_args_N=1; + for lt_arg + do + \$ECHO \"${outputname}:${output}:\${LINENO}: newargv[\$lt_dump_args_N]: \$lt_arg\" + lt_dump_args_N=\`expr \$lt_dump_args_N + 1\` + done +} + +# Core function for launching the target application +func_exec_program_core () +{ +" + case $host in + # Backslashes separate directories on plain windows + *-*-mingw | *-*-os2* | *-cegcc*) + $ECHO "\ + if test -n \"\$lt_option_debug\"; then + \$ECHO \"${outputname}:${output}:\${LINENO}: newargv[0]: \$progdir\\\\\$program\" 1>&2 + func_lt_dump_args \${1+\"\$@\"} 1>&2 + fi + exec \"\$progdir\\\\\$program\" \${1+\"\$@\"} +" + ;; + + *) + $ECHO "\ + if test -n \"\$lt_option_debug\"; then + \$ECHO \"${outputname}:${output}:\${LINENO}: newargv[0]: \$progdir/\$program\" 1>&2 + func_lt_dump_args \${1+\"\$@\"} 1>&2 + fi + exec \"\$progdir/\$program\" \${1+\"\$@\"} +" + ;; + esac + $ECHO "\ + \$ECHO \"\$0: cannot exec \$program \$*\" 1>&2 + exit 1 +} + +# A function to encapsulate launching the target application +# Strips options in the --lt-* namespace from \$@ and +# launches target application with the remaining arguments. +func_exec_program () +{ + case \" \$* \" in + *\\ --lt-*) + for lt_wr_arg + do + case \$lt_wr_arg in + --lt-*) ;; + *) set x \"\$@\" \"\$lt_wr_arg\"; shift;; + esac + shift + done ;; + esac + func_exec_program_core \${1+\"\$@\"} +} + + # Parse options + func_parse_lt_options \"\$0\" \${1+\"\$@\"} + + # Find the directory that this script lives in. + thisdir=\`\$ECHO \"\$file\" | $SED 's%/[^/]*$%%'\` + test \"x\$thisdir\" = \"x\$file\" && thisdir=. + + # Follow symbolic links until we get to the real thisdir. + file=\`ls -ld \"\$file\" | $SED -n 's/.*-> //p'\` + while test -n \"\$file\"; do + destdir=\`\$ECHO \"\$file\" | $SED 's%/[^/]*\$%%'\` + + # If there was a directory component, then change thisdir. + if test \"x\$destdir\" != \"x\$file\"; then + case \"\$destdir\" in + [\\\\/]* | [A-Za-z]:[\\\\/]*) thisdir=\"\$destdir\" ;; + *) thisdir=\"\$thisdir/\$destdir\" ;; + esac + fi + + file=\`\$ECHO \"\$file\" | $SED 's%^.*/%%'\` + file=\`ls -ld \"\$thisdir/\$file\" | $SED -n 's/.*-> //p'\` + done + + # Usually 'no', except on cygwin/mingw when embedded into + # the cwrapper. + WRAPPER_SCRIPT_BELONGS_IN_OBJDIR=$func_emit_wrapper_arg1 + if test \"\$WRAPPER_SCRIPT_BELONGS_IN_OBJDIR\" = \"yes\"; then + # special case for '.' + if test \"\$thisdir\" = \".\"; then + thisdir=\`pwd\` + fi + # remove .libs from thisdir + case \"\$thisdir\" in + *[\\\\/]$objdir ) thisdir=\`\$ECHO \"\$thisdir\" | $SED 's%[\\\\/][^\\\\/]*$%%'\` ;; + $objdir ) thisdir=. ;; + esac + fi + + # Try to get the absolute directory name. + absdir=\`cd \"\$thisdir\" && pwd\` + test -n \"\$absdir\" && thisdir=\"\$absdir\" +" + + if test "$fast_install" = yes; then + $ECHO "\ + program=lt-'$outputname'$exeext + progdir=\"\$thisdir/$objdir\" + + if test ! -f \"\$progdir/\$program\" || + { file=\`ls -1dt \"\$progdir/\$program\" \"\$progdir/../\$program\" 2>/dev/null | ${SED} 1q\`; \\ + test \"X\$file\" != \"X\$progdir/\$program\"; }; then + + file=\"\$\$-\$program\" + + if test ! -d \"\$progdir\"; then + $MKDIR \"\$progdir\" + else + $RM \"\$progdir/\$file\" + fi" + + $ECHO "\ + + # relink executable if necessary + if test -n \"\$relink_command\"; then + if relink_command_output=\`eval \$relink_command 2>&1\`; then : + else + $ECHO \"\$relink_command_output\" >&2 + $RM \"\$progdir/\$file\" + exit 1 + fi + fi + + $MV \"\$progdir/\$file\" \"\$progdir/\$program\" 2>/dev/null || + { $RM \"\$progdir/\$program\"; + $MV \"\$progdir/\$file\" \"\$progdir/\$program\"; } + $RM \"\$progdir/\$file\" + fi" + else + $ECHO "\ + program='$outputname' + progdir=\"\$thisdir/$objdir\" +" + fi + + $ECHO "\ + + if test -f \"\$progdir/\$program\"; then" + + # fixup the dll searchpath if we need to. + # + # Fix the DLL searchpath if we need to. Do this before prepending + # to shlibpath, because on Windows, both are PATH and uninstalled + # libraries must come first. + if test -n "$dllsearchpath"; then + $ECHO "\ + # Add the dll search path components to the executable PATH + PATH=$dllsearchpath:\$PATH +" + fi + + # Export our shlibpath_var if we have one. + if test "$shlibpath_overrides_runpath" = yes && test -n "$shlibpath_var" && test -n "$temp_rpath"; then + $ECHO "\ + # Add our own library path to $shlibpath_var + $shlibpath_var=\"$temp_rpath\$$shlibpath_var\" + + # Some systems cannot cope with colon-terminated $shlibpath_var + # The second colon is a workaround for a bug in BeOS R4 sed + $shlibpath_var=\`\$ECHO \"\$$shlibpath_var\" | $SED 's/::*\$//'\` + + export $shlibpath_var +" + fi + + $ECHO "\ + if test \"\$libtool_execute_magic\" != \"$magic\"; then + # Run the actual program with our arguments. + func_exec_program \${1+\"\$@\"} + fi + else + # The program doesn't exist. + \$ECHO \"\$0: error: \\\`\$progdir/\$program' does not exist\" 1>&2 + \$ECHO \"This script is just a wrapper for \$program.\" 1>&2 + \$ECHO \"See the $PACKAGE documentation for more information.\" 1>&2 + exit 1 + fi +fi\ +" +} + + +# func_emit_cwrapperexe_src +# emit the source code for a wrapper executable on stdout +# Must ONLY be called from within func_mode_link because +# it depends on a number of variable set therein. +func_emit_cwrapperexe_src () +{ + cat < +#include +#ifdef _MSC_VER +# include +# include +# include +#else +# include +# include +# ifdef __CYGWIN__ +# include +# endif +#endif +#include +#include +#include +#include +#include +#include +#include +#include + +/* declarations of non-ANSI functions */ +#if defined(__MINGW32__) +# ifdef __STRICT_ANSI__ +int _putenv (const char *); +# endif +#elif defined(__CYGWIN__) +# ifdef __STRICT_ANSI__ +char *realpath (const char *, char *); +int putenv (char *); +int setenv (const char *, const char *, int); +# endif +/* #elif defined (other platforms) ... */ +#endif + +/* portability defines, excluding path handling macros */ +#if defined(_MSC_VER) +# define setmode _setmode +# define stat _stat +# define chmod _chmod +# define getcwd _getcwd +# define putenv _putenv +# define S_IXUSR _S_IEXEC +# ifndef _INTPTR_T_DEFINED +# define _INTPTR_T_DEFINED +# define intptr_t int +# endif +#elif defined(__MINGW32__) +# define setmode _setmode +# define stat _stat +# define chmod _chmod +# define getcwd _getcwd +# define putenv _putenv +#elif defined(__CYGWIN__) +# define HAVE_SETENV +# define FOPEN_WB "wb" +/* #elif defined (other platforms) ... */ +#endif + +#if defined(PATH_MAX) +# define LT_PATHMAX PATH_MAX +#elif defined(MAXPATHLEN) +# define LT_PATHMAX MAXPATHLEN +#else +# define LT_PATHMAX 1024 +#endif + +#ifndef S_IXOTH +# define S_IXOTH 0 +#endif +#ifndef S_IXGRP +# define S_IXGRP 0 +#endif + +/* path handling portability macros */ +#ifndef DIR_SEPARATOR +# define DIR_SEPARATOR '/' +# define PATH_SEPARATOR ':' +#endif + +#if defined (_WIN32) || defined (__MSDOS__) || defined (__DJGPP__) || \ + defined (__OS2__) +# define HAVE_DOS_BASED_FILE_SYSTEM +# define FOPEN_WB "wb" +# ifndef DIR_SEPARATOR_2 +# define DIR_SEPARATOR_2 '\\' +# endif +# ifndef PATH_SEPARATOR_2 +# define PATH_SEPARATOR_2 ';' +# endif +#endif + +#ifndef DIR_SEPARATOR_2 +# define IS_DIR_SEPARATOR(ch) ((ch) == DIR_SEPARATOR) +#else /* DIR_SEPARATOR_2 */ +# define IS_DIR_SEPARATOR(ch) \ + (((ch) == DIR_SEPARATOR) || ((ch) == DIR_SEPARATOR_2)) +#endif /* DIR_SEPARATOR_2 */ + +#ifndef PATH_SEPARATOR_2 +# define IS_PATH_SEPARATOR(ch) ((ch) == PATH_SEPARATOR) +#else /* PATH_SEPARATOR_2 */ +# define IS_PATH_SEPARATOR(ch) ((ch) == PATH_SEPARATOR_2) +#endif /* PATH_SEPARATOR_2 */ + +#ifndef FOPEN_WB +# define FOPEN_WB "w" +#endif +#ifndef _O_BINARY +# define _O_BINARY 0 +#endif + +#define XMALLOC(type, num) ((type *) xmalloc ((num) * sizeof(type))) +#define XFREE(stale) do { \ + if (stale) { free ((void *) stale); stale = 0; } \ +} while (0) + +#if defined(LT_DEBUGWRAPPER) +static int lt_debug = 1; +#else +static int lt_debug = 0; +#endif + +const char *program_name = "libtool-wrapper"; /* in case xstrdup fails */ + +void *xmalloc (size_t num); +char *xstrdup (const char *string); +const char *base_name (const char *name); +char *find_executable (const char *wrapper); +char *chase_symlinks (const char *pathspec); +int make_executable (const char *path); +int check_executable (const char *path); +char *strendzap (char *str, const char *pat); +void lt_debugprintf (const char *file, int line, const char *fmt, ...); +void lt_fatal (const char *file, int line, const char *message, ...); +static const char *nonnull (const char *s); +static const char *nonempty (const char *s); +void lt_setenv (const char *name, const char *value); +char *lt_extend_str (const char *orig_value, const char *add, int to_end); +void lt_update_exe_path (const char *name, const char *value); +void lt_update_lib_path (const char *name, const char *value); +char **prepare_spawn (char **argv); +void lt_dump_script (FILE *f); +EOF + + cat <= 0) + && (st.st_mode & (S_IXUSR | S_IXGRP | S_IXOTH))) + return 1; + else + return 0; +} + +int +make_executable (const char *path) +{ + int rval = 0; + struct stat st; + + lt_debugprintf (__FILE__, __LINE__, "(make_executable): %s\n", + nonempty (path)); + if ((!path) || (!*path)) + return 0; + + if (stat (path, &st) >= 0) + { + rval = chmod (path, st.st_mode | S_IXOTH | S_IXGRP | S_IXUSR); + } + return rval; +} + +/* Searches for the full path of the wrapper. Returns + newly allocated full path name if found, NULL otherwise + Does not chase symlinks, even on platforms that support them. +*/ +char * +find_executable (const char *wrapper) +{ + int has_slash = 0; + const char *p; + const char *p_next; + /* static buffer for getcwd */ + char tmp[LT_PATHMAX + 1]; + int tmp_len; + char *concat_name; + + lt_debugprintf (__FILE__, __LINE__, "(find_executable): %s\n", + nonempty (wrapper)); + + if ((wrapper == NULL) || (*wrapper == '\0')) + return NULL; + + /* Absolute path? */ +#if defined (HAVE_DOS_BASED_FILE_SYSTEM) + if (isalpha ((unsigned char) wrapper[0]) && wrapper[1] == ':') + { + concat_name = xstrdup (wrapper); + if (check_executable (concat_name)) + return concat_name; + XFREE (concat_name); + } + else + { +#endif + if (IS_DIR_SEPARATOR (wrapper[0])) + { + concat_name = xstrdup (wrapper); + if (check_executable (concat_name)) + return concat_name; + XFREE (concat_name); + } +#if defined (HAVE_DOS_BASED_FILE_SYSTEM) + } +#endif + + for (p = wrapper; *p; p++) + if (*p == '/') + { + has_slash = 1; + break; + } + if (!has_slash) + { + /* no slashes; search PATH */ + const char *path = getenv ("PATH"); + if (path != NULL) + { + for (p = path; *p; p = p_next) + { + const char *q; + size_t p_len; + for (q = p; *q; q++) + if (IS_PATH_SEPARATOR (*q)) + break; + p_len = q - p; + p_next = (*q == '\0' ? q : q + 1); + if (p_len == 0) + { + /* empty path: current directory */ + if (getcwd (tmp, LT_PATHMAX) == NULL) + lt_fatal (__FILE__, __LINE__, "getcwd failed: %s", + nonnull (strerror (errno))); + tmp_len = strlen (tmp); + concat_name = + XMALLOC (char, tmp_len + 1 + strlen (wrapper) + 1); + memcpy (concat_name, tmp, tmp_len); + concat_name[tmp_len] = '/'; + strcpy (concat_name + tmp_len + 1, wrapper); + } + else + { + concat_name = + XMALLOC (char, p_len + 1 + strlen (wrapper) + 1); + memcpy (concat_name, p, p_len); + concat_name[p_len] = '/'; + strcpy (concat_name + p_len + 1, wrapper); + } + if (check_executable (concat_name)) + return concat_name; + XFREE (concat_name); + } + } + /* not found in PATH; assume curdir */ + } + /* Relative path | not found in path: prepend cwd */ + if (getcwd (tmp, LT_PATHMAX) == NULL) + lt_fatal (__FILE__, __LINE__, "getcwd failed: %s", + nonnull (strerror (errno))); + tmp_len = strlen (tmp); + concat_name = XMALLOC (char, tmp_len + 1 + strlen (wrapper) + 1); + memcpy (concat_name, tmp, tmp_len); + concat_name[tmp_len] = '/'; + strcpy (concat_name + tmp_len + 1, wrapper); + + if (check_executable (concat_name)) + return concat_name; + XFREE (concat_name); + return NULL; +} + +char * +chase_symlinks (const char *pathspec) +{ +#ifndef S_ISLNK + return xstrdup (pathspec); +#else + char buf[LT_PATHMAX]; + struct stat s; + char *tmp_pathspec = xstrdup (pathspec); + char *p; + int has_symlinks = 0; + while (strlen (tmp_pathspec) && !has_symlinks) + { + lt_debugprintf (__FILE__, __LINE__, + "checking path component for symlinks: %s\n", + tmp_pathspec); + if (lstat (tmp_pathspec, &s) == 0) + { + if (S_ISLNK (s.st_mode) != 0) + { + has_symlinks = 1; + break; + } + + /* search backwards for last DIR_SEPARATOR */ + p = tmp_pathspec + strlen (tmp_pathspec) - 1; + while ((p > tmp_pathspec) && (!IS_DIR_SEPARATOR (*p))) + p--; + if ((p == tmp_pathspec) && (!IS_DIR_SEPARATOR (*p))) + { + /* no more DIR_SEPARATORS left */ + break; + } + *p = '\0'; + } + else + { + lt_fatal (__FILE__, __LINE__, + "error accessing file \"%s\": %s", + tmp_pathspec, nonnull (strerror (errno))); + } + } + XFREE (tmp_pathspec); + + if (!has_symlinks) + { + return xstrdup (pathspec); + } + + tmp_pathspec = realpath (pathspec, buf); + if (tmp_pathspec == 0) + { + lt_fatal (__FILE__, __LINE__, + "could not follow symlinks for %s", pathspec); + } + return xstrdup (tmp_pathspec); +#endif +} + +char * +strendzap (char *str, const char *pat) +{ + size_t len, patlen; + + assert (str != NULL); + assert (pat != NULL); + + len = strlen (str); + patlen = strlen (pat); + + if (patlen <= len) + { + str += len - patlen; + if (strcmp (str, pat) == 0) + *str = '\0'; + } + return str; +} + +void +lt_debugprintf (const char *file, int line, const char *fmt, ...) +{ + va_list args; + if (lt_debug) + { + (void) fprintf (stderr, "%s:%s:%d: ", program_name, file, line); + va_start (args, fmt); + (void) vfprintf (stderr, fmt, args); + va_end (args); + } +} + +static void +lt_error_core (int exit_status, const char *file, + int line, const char *mode, + const char *message, va_list ap) +{ + fprintf (stderr, "%s:%s:%d: %s: ", program_name, file, line, mode); + vfprintf (stderr, message, ap); + fprintf (stderr, ".\n"); + + if (exit_status >= 0) + exit (exit_status); +} + +void +lt_fatal (const char *file, int line, const char *message, ...) +{ + va_list ap; + va_start (ap, message); + lt_error_core (EXIT_FAILURE, file, line, "FATAL", message, ap); + va_end (ap); +} + +static const char * +nonnull (const char *s) +{ + return s ? s : "(null)"; +} + +static const char * +nonempty (const char *s) +{ + return (s && !*s) ? "(empty)" : nonnull (s); +} + +void +lt_setenv (const char *name, const char *value) +{ + lt_debugprintf (__FILE__, __LINE__, + "(lt_setenv) setting '%s' to '%s'\n", + nonnull (name), nonnull (value)); + { +#ifdef HAVE_SETENV + /* always make a copy, for consistency with !HAVE_SETENV */ + char *str = xstrdup (value); + setenv (name, str, 1); +#else + int len = strlen (name) + 1 + strlen (value) + 1; + char *str = XMALLOC (char, len); + sprintf (str, "%s=%s", name, value); + if (putenv (str) != EXIT_SUCCESS) + { + XFREE (str); + } +#endif + } +} + +char * +lt_extend_str (const char *orig_value, const char *add, int to_end) +{ + char *new_value; + if (orig_value && *orig_value) + { + int orig_value_len = strlen (orig_value); + int add_len = strlen (add); + new_value = XMALLOC (char, add_len + orig_value_len + 1); + if (to_end) + { + strcpy (new_value, orig_value); + strcpy (new_value + orig_value_len, add); + } + else + { + strcpy (new_value, add); + strcpy (new_value + add_len, orig_value); + } + } + else + { + new_value = xstrdup (add); + } + return new_value; +} + +void +lt_update_exe_path (const char *name, const char *value) +{ + lt_debugprintf (__FILE__, __LINE__, + "(lt_update_exe_path) modifying '%s' by prepending '%s'\n", + nonnull (name), nonnull (value)); + + if (name && *name && value && *value) + { + char *new_value = lt_extend_str (getenv (name), value, 0); + /* some systems can't cope with a ':'-terminated path #' */ + int len = strlen (new_value); + while (((len = strlen (new_value)) > 0) && IS_PATH_SEPARATOR (new_value[len-1])) + { + new_value[len-1] = '\0'; + } + lt_setenv (name, new_value); + XFREE (new_value); + } +} + +void +lt_update_lib_path (const char *name, const char *value) +{ + lt_debugprintf (__FILE__, __LINE__, + "(lt_update_lib_path) modifying '%s' by prepending '%s'\n", + nonnull (name), nonnull (value)); + + if (name && *name && value && *value) + { + char *new_value = lt_extend_str (getenv (name), value, 0); + lt_setenv (name, new_value); + XFREE (new_value); + } +} + +EOF + case $host_os in + mingw*) + cat <<"EOF" + +/* Prepares an argument vector before calling spawn(). + Note that spawn() does not by itself call the command interpreter + (getenv ("COMSPEC") != NULL ? getenv ("COMSPEC") : + ({ OSVERSIONINFO v; v.dwOSVersionInfoSize = sizeof(OSVERSIONINFO); + GetVersionEx(&v); + v.dwPlatformId == VER_PLATFORM_WIN32_NT; + }) ? "cmd.exe" : "command.com"). + Instead it simply concatenates the arguments, separated by ' ', and calls + CreateProcess(). We must quote the arguments since Win32 CreateProcess() + interprets characters like ' ', '\t', '\\', '"' (but not '<' and '>') in a + special way: + - Space and tab are interpreted as delimiters. They are not treated as + delimiters if they are surrounded by double quotes: "...". + - Unescaped double quotes are removed from the input. Their only effect is + that within double quotes, space and tab are treated like normal + characters. + - Backslashes not followed by double quotes are not special. + - But 2*n+1 backslashes followed by a double quote become + n backslashes followed by a double quote (n >= 0): + \" -> " + \\\" -> \" + \\\\\" -> \\" + */ +#define SHELL_SPECIAL_CHARS "\"\\ \001\002\003\004\005\006\007\010\011\012\013\014\015\016\017\020\021\022\023\024\025\026\027\030\031\032\033\034\035\036\037" +#define SHELL_SPACE_CHARS " \001\002\003\004\005\006\007\010\011\012\013\014\015\016\017\020\021\022\023\024\025\026\027\030\031\032\033\034\035\036\037" +char ** +prepare_spawn (char **argv) +{ + size_t argc; + char **new_argv; + size_t i; + + /* Count number of arguments. */ + for (argc = 0; argv[argc] != NULL; argc++) + ; + + /* Allocate new argument vector. */ + new_argv = XMALLOC (char *, argc + 1); + + /* Put quoted arguments into the new argument vector. */ + for (i = 0; i < argc; i++) + { + const char *string = argv[i]; + + if (string[0] == '\0') + new_argv[i] = xstrdup ("\"\""); + else if (strpbrk (string, SHELL_SPECIAL_CHARS) != NULL) + { + int quote_around = (strpbrk (string, SHELL_SPACE_CHARS) != NULL); + size_t length; + unsigned int backslashes; + const char *s; + char *quoted_string; + char *p; + + length = 0; + backslashes = 0; + if (quote_around) + length++; + for (s = string; *s != '\0'; s++) + { + char c = *s; + if (c == '"') + length += backslashes + 1; + length++; + if (c == '\\') + backslashes++; + else + backslashes = 0; + } + if (quote_around) + length += backslashes + 1; + + quoted_string = XMALLOC (char, length + 1); + + p = quoted_string; + backslashes = 0; + if (quote_around) + *p++ = '"'; + for (s = string; *s != '\0'; s++) + { + char c = *s; + if (c == '"') + { + unsigned int j; + for (j = backslashes + 1; j > 0; j--) + *p++ = '\\'; + } + *p++ = c; + if (c == '\\') + backslashes++; + else + backslashes = 0; + } + if (quote_around) + { + unsigned int j; + for (j = backslashes; j > 0; j--) + *p++ = '\\'; + *p++ = '"'; + } + *p = '\0'; + + new_argv[i] = quoted_string; + } + else + new_argv[i] = (char *) string; + } + new_argv[argc] = NULL; + + return new_argv; +} +EOF + ;; + esac + + cat <<"EOF" +void lt_dump_script (FILE* f) +{ +EOF + func_emit_wrapper yes | + $SED -n -e ' +s/^\(.\{79\}\)\(..*\)/\1\ +\2/ +h +s/\([\\"]\)/\\\1/g +s/$/\\n/ +s/\([^\n]*\).*/ fputs ("\1", f);/p +g +D' + cat <<"EOF" +} +EOF +} +# end: func_emit_cwrapperexe_src + +# func_win32_import_lib_p ARG +# True if ARG is an import lib, as indicated by $file_magic_cmd +func_win32_import_lib_p () +{ + $opt_debug + case `eval $file_magic_cmd \"\$1\" 2>/dev/null | $SED -e 10q` in + *import*) : ;; + *) false ;; + esac +} + +# func_mode_link arg... +func_mode_link () +{ + $opt_debug + case $host in + *-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-os2* | *-cegcc*) + # It is impossible to link a dll without this setting, and + # we shouldn't force the makefile maintainer to figure out + # which system we are compiling for in order to pass an extra + # flag for every libtool invocation. + # allow_undefined=no + + # FIXME: Unfortunately, there are problems with the above when trying + # to make a dll which has undefined symbols, in which case not + # even a static library is built. For now, we need to specify + # -no-undefined on the libtool link line when we can be certain + # that all symbols are satisfied, otherwise we get a static library. + allow_undefined=yes + ;; + *) + allow_undefined=yes + ;; + esac + libtool_args=$nonopt + base_compile="$nonopt $@" + compile_command=$nonopt + finalize_command=$nonopt + + compile_rpath= + finalize_rpath= + compile_shlibpath= + finalize_shlibpath= + convenience= + old_convenience= + deplibs= + old_deplibs= + compiler_flags= + linker_flags= + dllsearchpath= + lib_search_path=`pwd` + inst_prefix_dir= + new_inherited_linker_flags= + + avoid_version=no + bindir= + dlfiles= + dlprefiles= + dlself=no + export_dynamic=no + export_symbols= + export_symbols_regex= + generated= + libobjs= + ltlibs= + module=no + no_install=no + objs= + non_pic_objects= + precious_files_regex= + prefer_static_libs=no + preload=no + prev= + prevarg= + release= + rpath= + xrpath= + perm_rpath= + temp_rpath= + thread_safe=no + vinfo= + vinfo_number=no + weak_libs= + single_module="${wl}-single_module" + func_infer_tag $base_compile + + # We need to know -static, to get the right output filenames. + for arg + do + case $arg in + -shared) + test "$build_libtool_libs" != yes && \ + func_fatal_configuration "can not build a shared library" + build_old_libs=no + break + ;; + -all-static | -static | -static-libtool-libs) + case $arg in + -all-static) + if test "$build_libtool_libs" = yes && test -z "$link_static_flag"; then + func_warning "complete static linking is impossible in this configuration" + fi + if test -n "$link_static_flag"; then + dlopen_self=$dlopen_self_static + fi + prefer_static_libs=yes + ;; + -static) + if test -z "$pic_flag" && test -n "$link_static_flag"; then + dlopen_self=$dlopen_self_static + fi + prefer_static_libs=built + ;; + -static-libtool-libs) + if test -z "$pic_flag" && test -n "$link_static_flag"; then + dlopen_self=$dlopen_self_static + fi + prefer_static_libs=yes + ;; + esac + build_libtool_libs=no + build_old_libs=yes + break + ;; + esac + done + + # See if our shared archives depend on static archives. + test -n "$old_archive_from_new_cmds" && build_old_libs=yes + + # Go through the arguments, transforming them on the way. + while test "$#" -gt 0; do + arg="$1" + shift + func_quote_for_eval "$arg" + qarg=$func_quote_for_eval_unquoted_result + func_append libtool_args " $func_quote_for_eval_result" + + # If the previous option needs an argument, assign it. + if test -n "$prev"; then + case $prev in + output) + func_append compile_command " @OUTPUT@" + func_append finalize_command " @OUTPUT@" + ;; + esac + + case $prev in + bindir) + bindir="$arg" + prev= + continue + ;; + dlfiles|dlprefiles) + if test "$preload" = no; then + # Add the symbol object into the linking commands. + func_append compile_command " @SYMFILE@" + func_append finalize_command " @SYMFILE@" + preload=yes + fi + case $arg in + *.la | *.lo) ;; # We handle these cases below. + force) + if test "$dlself" = no; then + dlself=needless + export_dynamic=yes + fi + prev= + continue + ;; + self) + if test "$prev" = dlprefiles; then + dlself=yes + elif test "$prev" = dlfiles && test "$dlopen_self" != yes; then + dlself=yes + else + dlself=needless + export_dynamic=yes + fi + prev= + continue + ;; + *) + if test "$prev" = dlfiles; then + func_append dlfiles " $arg" + else + func_append dlprefiles " $arg" + fi + prev= + continue + ;; + esac + ;; + expsyms) + export_symbols="$arg" + test -f "$arg" \ + || func_fatal_error "symbol file \`$arg' does not exist" + prev= + continue + ;; + expsyms_regex) + export_symbols_regex="$arg" + prev= + continue + ;; + framework) + case $host in + *-*-darwin*) + case "$deplibs " in + *" $qarg.ltframework "*) ;; + *) func_append deplibs " $qarg.ltframework" # this is fixed later + ;; + esac + ;; + esac + prev= + continue + ;; + inst_prefix) + inst_prefix_dir="$arg" + prev= + continue + ;; + objectlist) + if test -f "$arg"; then + save_arg=$arg + moreargs= + for fil in `cat "$save_arg"` + do +# func_append moreargs " $fil" + arg=$fil + # A libtool-controlled object. + + # Check to see that this really is a libtool object. + if func_lalib_unsafe_p "$arg"; then + pic_object= + non_pic_object= + + # Read the .lo file + func_source "$arg" + + if test -z "$pic_object" || + test -z "$non_pic_object" || + test "$pic_object" = none && + test "$non_pic_object" = none; then + func_fatal_error "cannot find name of object for \`$arg'" + fi + + # Extract subdirectory from the argument. + func_dirname "$arg" "/" "" + xdir="$func_dirname_result" + + if test "$pic_object" != none; then + # Prepend the subdirectory the object is found in. + pic_object="$xdir$pic_object" + + if test "$prev" = dlfiles; then + if test "$build_libtool_libs" = yes && test "$dlopen_support" = yes; then + func_append dlfiles " $pic_object" + prev= + continue + else + # If libtool objects are unsupported, then we need to preload. + prev=dlprefiles + fi + fi + + # CHECK ME: I think I busted this. -Ossama + if test "$prev" = dlprefiles; then + # Preload the old-style object. + func_append dlprefiles " $pic_object" + prev= + fi + + # A PIC object. + func_append libobjs " $pic_object" + arg="$pic_object" + fi + + # Non-PIC object. + if test "$non_pic_object" != none; then + # Prepend the subdirectory the object is found in. + non_pic_object="$xdir$non_pic_object" + + # A standard non-PIC object + func_append non_pic_objects " $non_pic_object" + if test -z "$pic_object" || test "$pic_object" = none ; then + arg="$non_pic_object" + fi + else + # If the PIC object exists, use it instead. + # $xdir was prepended to $pic_object above. + non_pic_object="$pic_object" + func_append non_pic_objects " $non_pic_object" + fi + else + # Only an error if not doing a dry-run. + if $opt_dry_run; then + # Extract subdirectory from the argument. + func_dirname "$arg" "/" "" + xdir="$func_dirname_result" + + func_lo2o "$arg" + pic_object=$xdir$objdir/$func_lo2o_result + non_pic_object=$xdir$func_lo2o_result + func_append libobjs " $pic_object" + func_append non_pic_objects " $non_pic_object" + else + func_fatal_error "\`$arg' is not a valid libtool object" + fi + fi + done + else + func_fatal_error "link input file \`$arg' does not exist" + fi + arg=$save_arg + prev= + continue + ;; + precious_regex) + precious_files_regex="$arg" + prev= + continue + ;; + release) + release="-$arg" + prev= + continue + ;; + rpath | xrpath) + # We need an absolute path. + case $arg in + [\\/]* | [A-Za-z]:[\\/]*) ;; + *) + func_fatal_error "only absolute run-paths are allowed" + ;; + esac + if test "$prev" = rpath; then + case "$rpath " in + *" $arg "*) ;; + *) func_append rpath " $arg" ;; + esac + else + case "$xrpath " in + *" $arg "*) ;; + *) func_append xrpath " $arg" ;; + esac + fi + prev= + continue + ;; + shrext) + shrext_cmds="$arg" + prev= + continue + ;; + weak) + func_append weak_libs " $arg" + prev= + continue + ;; + xcclinker) + func_append linker_flags " $qarg" + func_append compiler_flags " $qarg" + prev= + func_append compile_command " $qarg" + func_append finalize_command " $qarg" + continue + ;; + xcompiler) + func_append compiler_flags " $qarg" + prev= + func_append compile_command " $qarg" + func_append finalize_command " $qarg" + continue + ;; + xlinker) + func_append linker_flags " $qarg" + func_append compiler_flags " $wl$qarg" + prev= + func_append compile_command " $wl$qarg" + func_append finalize_command " $wl$qarg" + continue + ;; + *) + eval "$prev=\"\$arg\"" + prev= + continue + ;; + esac + fi # test -n "$prev" + + prevarg="$arg" + + case $arg in + -all-static) + if test -n "$link_static_flag"; then + # See comment for -static flag below, for more details. + func_append compile_command " $link_static_flag" + func_append finalize_command " $link_static_flag" + fi + continue + ;; + + -allow-undefined) + # FIXME: remove this flag sometime in the future. + func_fatal_error "\`-allow-undefined' must not be used because it is the default" + ;; + + -avoid-version) + avoid_version=yes + continue + ;; + + -bindir) + prev=bindir + continue + ;; + + -dlopen) + prev=dlfiles + continue + ;; + + -dlpreopen) + prev=dlprefiles + continue + ;; + + -export-dynamic) + export_dynamic=yes + continue + ;; + + -export-symbols | -export-symbols-regex) + if test -n "$export_symbols" || test -n "$export_symbols_regex"; then + func_fatal_error "more than one -exported-symbols argument is not allowed" + fi + if test "X$arg" = "X-export-symbols"; then + prev=expsyms + else + prev=expsyms_regex + fi + continue + ;; + + -framework) + prev=framework + continue + ;; + + -inst-prefix-dir) + prev=inst_prefix + continue + ;; + + # The native IRIX linker understands -LANG:*, -LIST:* and -LNO:* + # so, if we see these flags be careful not to treat them like -L + -L[A-Z][A-Z]*:*) + case $with_gcc/$host in + no/*-*-irix* | /*-*-irix*) + func_append compile_command " $arg" + func_append finalize_command " $arg" + ;; + esac + continue + ;; + + -L*) + func_stripname "-L" '' "$arg" + if test -z "$func_stripname_result"; then + if test "$#" -gt 0; then + func_fatal_error "require no space between \`-L' and \`$1'" + else + func_fatal_error "need path for \`-L' option" + fi + fi + func_resolve_sysroot "$func_stripname_result" + dir=$func_resolve_sysroot_result + # We need an absolute path. + case $dir in + [\\/]* | [A-Za-z]:[\\/]*) ;; + *) + absdir=`cd "$dir" && pwd` + test -z "$absdir" && \ + func_fatal_error "cannot determine absolute directory name of \`$dir'" + dir="$absdir" + ;; + esac + case "$deplibs " in + *" -L$dir "* | *" $arg "*) + # Will only happen for absolute or sysroot arguments + ;; + *) + # Preserve sysroot, but never include relative directories + case $dir in + [\\/]* | [A-Za-z]:[\\/]* | =*) func_append deplibs " $arg" ;; + *) func_append deplibs " -L$dir" ;; + esac + func_append lib_search_path " $dir" + ;; + esac + case $host in + *-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-os2* | *-cegcc*) + testbindir=`$ECHO "$dir" | $SED 's*/lib$*/bin*'` + case :$dllsearchpath: in + *":$dir:"*) ;; + ::) dllsearchpath=$dir;; + *) func_append dllsearchpath ":$dir";; + esac + case :$dllsearchpath: in + *":$testbindir:"*) ;; + ::) dllsearchpath=$testbindir;; + *) func_append dllsearchpath ":$testbindir";; + esac + ;; + esac + continue + ;; + + -l*) + if test "X$arg" = "X-lc" || test "X$arg" = "X-lm"; then + case $host in + *-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-beos* | *-cegcc* | *-*-haiku*) + # These systems don't actually have a C or math library (as such) + continue + ;; + *-*-os2*) + # These systems don't actually have a C library (as such) + test "X$arg" = "X-lc" && continue + ;; + *-*-openbsd* | *-*-freebsd* | *-*-dragonfly*) + # Do not include libc due to us having libc/libc_r. + test "X$arg" = "X-lc" && continue + ;; + *-*-rhapsody* | *-*-darwin1.[012]) + # Rhapsody C and math libraries are in the System framework + func_append deplibs " System.ltframework" + continue + ;; + *-*-sco3.2v5* | *-*-sco5v6*) + # Causes problems with __ctype + test "X$arg" = "X-lc" && continue + ;; + *-*-sysv4.2uw2* | *-*-sysv5* | *-*-unixware* | *-*-OpenUNIX*) + # Compiler inserts libc in the correct place for threads to work + test "X$arg" = "X-lc" && continue + ;; + esac + elif test "X$arg" = "X-lc_r"; then + case $host in + *-*-openbsd* | *-*-freebsd* | *-*-dragonfly*) + # Do not include libc_r directly, use -pthread flag. + continue + ;; + esac + fi + func_append deplibs " $arg" + continue + ;; + + -module) + module=yes + continue + ;; + + # Tru64 UNIX uses -model [arg] to determine the layout of C++ + # classes, name mangling, and exception handling. + # Darwin uses the -arch flag to determine output architecture. + -model|-arch|-isysroot|--sysroot) + func_append compiler_flags " $arg" + func_append compile_command " $arg" + func_append finalize_command " $arg" + prev=xcompiler + continue + ;; + + -mt|-mthreads|-kthread|-Kthread|-pthread|-pthreads|--thread-safe \ + |-threads|-fopenmp|-openmp|-mp|-xopenmp|-omp|-qsmp=*) + func_append compiler_flags " $arg" + func_append compile_command " $arg" + func_append finalize_command " $arg" + case "$new_inherited_linker_flags " in + *" $arg "*) ;; + * ) func_append new_inherited_linker_flags " $arg" ;; + esac + continue + ;; + + -multi_module) + single_module="${wl}-multi_module" + continue + ;; + + -no-fast-install) + fast_install=no + continue + ;; + + -no-install) + case $host in + *-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-os2* | *-*-darwin* | *-cegcc*) + # The PATH hackery in wrapper scripts is required on Windows + # and Darwin in order for the loader to find any dlls it needs. + func_warning "\`-no-install' is ignored for $host" + func_warning "assuming \`-no-fast-install' instead" + fast_install=no + ;; + *) no_install=yes ;; + esac + continue + ;; + + -no-undefined) + allow_undefined=no + continue + ;; + + -objectlist) + prev=objectlist + continue + ;; + + -o) prev=output ;; + + -precious-files-regex) + prev=precious_regex + continue + ;; + + -release) + prev=release + continue + ;; + + -rpath) + prev=rpath + continue + ;; + + -R) + prev=xrpath + continue + ;; + + -R*) + func_stripname '-R' '' "$arg" + dir=$func_stripname_result + # We need an absolute path. + case $dir in + [\\/]* | [A-Za-z]:[\\/]*) ;; + =*) + func_stripname '=' '' "$dir" + dir=$lt_sysroot$func_stripname_result + ;; + *) + func_fatal_error "only absolute run-paths are allowed" + ;; + esac + case "$xrpath " in + *" $dir "*) ;; + *) func_append xrpath " $dir" ;; + esac + continue + ;; + + -shared) + # The effects of -shared are defined in a previous loop. + continue + ;; + + -shrext) + prev=shrext + continue + ;; + + -static | -static-libtool-libs) + # The effects of -static are defined in a previous loop. + # We used to do the same as -all-static on platforms that + # didn't have a PIC flag, but the assumption that the effects + # would be equivalent was wrong. It would break on at least + # Digital Unix and AIX. + continue + ;; + + -thread-safe) + thread_safe=yes + continue + ;; + + -version-info) + prev=vinfo + continue + ;; + + -version-number) + prev=vinfo + vinfo_number=yes + continue + ;; + + -weak) + prev=weak + continue + ;; + + -Wc,*) + func_stripname '-Wc,' '' "$arg" + args=$func_stripname_result + arg= + save_ifs="$IFS"; IFS=',' + for flag in $args; do + IFS="$save_ifs" + func_quote_for_eval "$flag" + func_append arg " $func_quote_for_eval_result" + func_append compiler_flags " $func_quote_for_eval_result" + done + IFS="$save_ifs" + func_stripname ' ' '' "$arg" + arg=$func_stripname_result + ;; + + -Wl,*) + func_stripname '-Wl,' '' "$arg" + args=$func_stripname_result + arg= + save_ifs="$IFS"; IFS=',' + for flag in $args; do + IFS="$save_ifs" + func_quote_for_eval "$flag" + func_append arg " $wl$func_quote_for_eval_result" + func_append compiler_flags " $wl$func_quote_for_eval_result" + func_append linker_flags " $func_quote_for_eval_result" + done + IFS="$save_ifs" + func_stripname ' ' '' "$arg" + arg=$func_stripname_result + ;; + + -Xcompiler) + prev=xcompiler + continue + ;; + + -Xlinker) + prev=xlinker + continue + ;; + + -XCClinker) + prev=xcclinker + continue + ;; + + # -msg_* for osf cc + -msg_*) + func_quote_for_eval "$arg" + arg="$func_quote_for_eval_result" + ;; + + # Flags to be passed through unchanged, with rationale: + # -64, -mips[0-9] enable 64-bit mode for the SGI compiler + # -r[0-9][0-9]* specify processor for the SGI compiler + # -xarch=*, -xtarget=* enable 64-bit mode for the Sun compiler + # +DA*, +DD* enable 64-bit mode for the HP compiler + # -q* compiler args for the IBM compiler + # -m*, -t[45]*, -txscale* architecture-specific flags for GCC + # -F/path path to uninstalled frameworks, gcc on darwin + # -p, -pg, --coverage, -fprofile-* profiling flags for GCC + # @file GCC response files + # -tp=* Portland pgcc target processor selection + # --sysroot=* for sysroot support + # -O*, -flto*, -fwhopr*, -fuse-linker-plugin GCC link-time optimization + -64|-mips[0-9]|-r[0-9][0-9]*|-xarch=*|-xtarget=*|+DA*|+DD*|-q*|-m*| \ + -t[45]*|-txscale*|-p|-pg|--coverage|-fprofile-*|-F*|@*|-tp=*|--sysroot=*| \ + -O*|-flto*|-fwhopr*|-fuse-linker-plugin) + func_quote_for_eval "$arg" + arg="$func_quote_for_eval_result" + func_append compile_command " $arg" + func_append finalize_command " $arg" + func_append compiler_flags " $arg" + continue + ;; + + # Some other compiler flag. + -* | +*) + func_quote_for_eval "$arg" + arg="$func_quote_for_eval_result" + ;; + + *.$objext) + # A standard object. + func_append objs " $arg" + ;; + + *.lo) + # A libtool-controlled object. + + # Check to see that this really is a libtool object. + if func_lalib_unsafe_p "$arg"; then + pic_object= + non_pic_object= + + # Read the .lo file + func_source "$arg" + + if test -z "$pic_object" || + test -z "$non_pic_object" || + test "$pic_object" = none && + test "$non_pic_object" = none; then + func_fatal_error "cannot find name of object for \`$arg'" + fi + + # Extract subdirectory from the argument. + func_dirname "$arg" "/" "" + xdir="$func_dirname_result" + + if test "$pic_object" != none; then + # Prepend the subdirectory the object is found in. + pic_object="$xdir$pic_object" + + if test "$prev" = dlfiles; then + if test "$build_libtool_libs" = yes && test "$dlopen_support" = yes; then + func_append dlfiles " $pic_object" + prev= + continue + else + # If libtool objects are unsupported, then we need to preload. + prev=dlprefiles + fi + fi + + # CHECK ME: I think I busted this. -Ossama + if test "$prev" = dlprefiles; then + # Preload the old-style object. + func_append dlprefiles " $pic_object" + prev= + fi + + # A PIC object. + func_append libobjs " $pic_object" + arg="$pic_object" + fi + + # Non-PIC object. + if test "$non_pic_object" != none; then + # Prepend the subdirectory the object is found in. + non_pic_object="$xdir$non_pic_object" + + # A standard non-PIC object + func_append non_pic_objects " $non_pic_object" + if test -z "$pic_object" || test "$pic_object" = none ; then + arg="$non_pic_object" + fi + else + # If the PIC object exists, use it instead. + # $xdir was prepended to $pic_object above. + non_pic_object="$pic_object" + func_append non_pic_objects " $non_pic_object" + fi + else + # Only an error if not doing a dry-run. + if $opt_dry_run; then + # Extract subdirectory from the argument. + func_dirname "$arg" "/" "" + xdir="$func_dirname_result" + + func_lo2o "$arg" + pic_object=$xdir$objdir/$func_lo2o_result + non_pic_object=$xdir$func_lo2o_result + func_append libobjs " $pic_object" + func_append non_pic_objects " $non_pic_object" + else + func_fatal_error "\`$arg' is not a valid libtool object" + fi + fi + ;; + + *.$libext) + # An archive. + func_append deplibs " $arg" + func_append old_deplibs " $arg" + continue + ;; + + *.la) + # A libtool-controlled library. + + func_resolve_sysroot "$arg" + if test "$prev" = dlfiles; then + # This library was specified with -dlopen. + func_append dlfiles " $func_resolve_sysroot_result" + prev= + elif test "$prev" = dlprefiles; then + # The library was specified with -dlpreopen. + func_append dlprefiles " $func_resolve_sysroot_result" + prev= + else + func_append deplibs " $func_resolve_sysroot_result" + fi + continue + ;; + + # Some other compiler argument. + *) + # Unknown arguments in both finalize_command and compile_command need + # to be aesthetically quoted because they are evaled later. + func_quote_for_eval "$arg" + arg="$func_quote_for_eval_result" + ;; + esac # arg + + # Now actually substitute the argument into the commands. + if test -n "$arg"; then + func_append compile_command " $arg" + func_append finalize_command " $arg" + fi + done # argument parsing loop + + test -n "$prev" && \ + func_fatal_help "the \`$prevarg' option requires an argument" + + if test "$export_dynamic" = yes && test -n "$export_dynamic_flag_spec"; then + eval arg=\"$export_dynamic_flag_spec\" + func_append compile_command " $arg" + func_append finalize_command " $arg" + fi + + oldlibs= + # calculate the name of the file, without its directory + func_basename "$output" + outputname="$func_basename_result" + libobjs_save="$libobjs" + + if test -n "$shlibpath_var"; then + # get the directories listed in $shlibpath_var + eval shlib_search_path=\`\$ECHO \"\${$shlibpath_var}\" \| \$SED \'s/:/ /g\'\` + else + shlib_search_path= + fi + eval sys_lib_search_path=\"$sys_lib_search_path_spec\" + eval sys_lib_dlsearch_path=\"$sys_lib_dlsearch_path_spec\" + + func_dirname "$output" "/" "" + output_objdir="$func_dirname_result$objdir" + func_to_tool_file "$output_objdir/" + tool_output_objdir=$func_to_tool_file_result + # Create the object directory. + func_mkdir_p "$output_objdir" + + # Determine the type of output + case $output in + "") + func_fatal_help "you must specify an output file" + ;; + *.$libext) linkmode=oldlib ;; + *.lo | *.$objext) linkmode=obj ;; + *.la) linkmode=lib ;; + *) linkmode=prog ;; # Anything else should be a program. + esac + + specialdeplibs= + + libs= + # Find all interdependent deplibs by searching for libraries + # that are linked more than once (e.g. -la -lb -la) + for deplib in $deplibs; do + if $opt_preserve_dup_deps ; then + case "$libs " in + *" $deplib "*) func_append specialdeplibs " $deplib" ;; + esac + fi + func_append libs " $deplib" + done + + if test "$linkmode" = lib; then + libs="$predeps $libs $compiler_lib_search_path $postdeps" + + # Compute libraries that are listed more than once in $predeps + # $postdeps and mark them as special (i.e., whose duplicates are + # not to be eliminated). + pre_post_deps= + if $opt_duplicate_compiler_generated_deps; then + for pre_post_dep in $predeps $postdeps; do + case "$pre_post_deps " in + *" $pre_post_dep "*) func_append specialdeplibs " $pre_post_deps" ;; + esac + func_append pre_post_deps " $pre_post_dep" + done + fi + pre_post_deps= + fi + + deplibs= + newdependency_libs= + newlib_search_path= + need_relink=no # whether we're linking any uninstalled libtool libraries + notinst_deplibs= # not-installed libtool libraries + notinst_path= # paths that contain not-installed libtool libraries + + case $linkmode in + lib) + passes="conv dlpreopen link" + for file in $dlfiles $dlprefiles; do + case $file in + *.la) ;; + *) + func_fatal_help "libraries can \`-dlopen' only libtool libraries: $file" + ;; + esac + done + ;; + prog) + compile_deplibs= + finalize_deplibs= + alldeplibs=no + newdlfiles= + newdlprefiles= + passes="conv scan dlopen dlpreopen link" + ;; + *) passes="conv" + ;; + esac + + for pass in $passes; do + # The preopen pass in lib mode reverses $deplibs; put it back here + # so that -L comes before libs that need it for instance... + if test "$linkmode,$pass" = "lib,link"; then + ## FIXME: Find the place where the list is rebuilt in the wrong + ## order, and fix it there properly + tmp_deplibs= + for deplib in $deplibs; do + tmp_deplibs="$deplib $tmp_deplibs" + done + deplibs="$tmp_deplibs" + fi + + if test "$linkmode,$pass" = "lib,link" || + test "$linkmode,$pass" = "prog,scan"; then + libs="$deplibs" + deplibs= + fi + if test "$linkmode" = prog; then + case $pass in + dlopen) libs="$dlfiles" ;; + dlpreopen) libs="$dlprefiles" ;; + link) libs="$deplibs %DEPLIBS% $dependency_libs" ;; + esac + fi + if test "$linkmode,$pass" = "lib,dlpreopen"; then + # Collect and forward deplibs of preopened libtool libs + for lib in $dlprefiles; do + # Ignore non-libtool-libs + dependency_libs= + func_resolve_sysroot "$lib" + case $lib in + *.la) func_source "$func_resolve_sysroot_result" ;; + esac + + # Collect preopened libtool deplibs, except any this library + # has declared as weak libs + for deplib in $dependency_libs; do + func_basename "$deplib" + deplib_base=$func_basename_result + case " $weak_libs " in + *" $deplib_base "*) ;; + *) func_append deplibs " $deplib" ;; + esac + done + done + libs="$dlprefiles" + fi + if test "$pass" = dlopen; then + # Collect dlpreopened libraries + save_deplibs="$deplibs" + deplibs= + fi + + for deplib in $libs; do + lib= + found=no + case $deplib in + -mt|-mthreads|-kthread|-Kthread|-pthread|-pthreads|--thread-safe \ + |-threads|-fopenmp|-openmp|-mp|-xopenmp|-omp|-qsmp=*) + if test "$linkmode,$pass" = "prog,link"; then + compile_deplibs="$deplib $compile_deplibs" + finalize_deplibs="$deplib $finalize_deplibs" + else + func_append compiler_flags " $deplib" + if test "$linkmode" = lib ; then + case "$new_inherited_linker_flags " in + *" $deplib "*) ;; + * ) func_append new_inherited_linker_flags " $deplib" ;; + esac + fi + fi + continue + ;; + -l*) + if test "$linkmode" != lib && test "$linkmode" != prog; then + func_warning "\`-l' is ignored for archives/objects" + continue + fi + func_stripname '-l' '' "$deplib" + name=$func_stripname_result + if test "$linkmode" = lib; then + searchdirs="$newlib_search_path $lib_search_path $compiler_lib_search_dirs $sys_lib_search_path $shlib_search_path" + else + searchdirs="$newlib_search_path $lib_search_path $sys_lib_search_path $shlib_search_path" + fi + for searchdir in $searchdirs; do + for search_ext in .la $std_shrext .so .a; do + # Search the libtool library + lib="$searchdir/lib${name}${search_ext}" + if test -f "$lib"; then + if test "$search_ext" = ".la"; then + found=yes + else + found=no + fi + break 2 + fi + done + done + if test "$found" != yes; then + # deplib doesn't seem to be a libtool library + if test "$linkmode,$pass" = "prog,link"; then + compile_deplibs="$deplib $compile_deplibs" + finalize_deplibs="$deplib $finalize_deplibs" + else + deplibs="$deplib $deplibs" + test "$linkmode" = lib && newdependency_libs="$deplib $newdependency_libs" + fi + continue + else # deplib is a libtool library + # If $allow_libtool_libs_with_static_runtimes && $deplib is a stdlib, + # We need to do some special things here, and not later. + if test "X$allow_libtool_libs_with_static_runtimes" = "Xyes" ; then + case " $predeps $postdeps " in + *" $deplib "*) + if func_lalib_p "$lib"; then + library_names= + old_library= + func_source "$lib" + for l in $old_library $library_names; do + ll="$l" + done + if test "X$ll" = "X$old_library" ; then # only static version available + found=no + func_dirname "$lib" "" "." + ladir="$func_dirname_result" + lib=$ladir/$old_library + if test "$linkmode,$pass" = "prog,link"; then + compile_deplibs="$deplib $compile_deplibs" + finalize_deplibs="$deplib $finalize_deplibs" + else + deplibs="$deplib $deplibs" + test "$linkmode" = lib && newdependency_libs="$deplib $newdependency_libs" + fi + continue + fi + fi + ;; + *) ;; + esac + fi + fi + ;; # -l + *.ltframework) + if test "$linkmode,$pass" = "prog,link"; then + compile_deplibs="$deplib $compile_deplibs" + finalize_deplibs="$deplib $finalize_deplibs" + else + deplibs="$deplib $deplibs" + if test "$linkmode" = lib ; then + case "$new_inherited_linker_flags " in + *" $deplib "*) ;; + * ) func_append new_inherited_linker_flags " $deplib" ;; + esac + fi + fi + continue + ;; + -L*) + case $linkmode in + lib) + deplibs="$deplib $deplibs" + test "$pass" = conv && continue + newdependency_libs="$deplib $newdependency_libs" + func_stripname '-L' '' "$deplib" + func_resolve_sysroot "$func_stripname_result" + func_append newlib_search_path " $func_resolve_sysroot_result" + ;; + prog) + if test "$pass" = conv; then + deplibs="$deplib $deplibs" + continue + fi + if test "$pass" = scan; then + deplibs="$deplib $deplibs" + else + compile_deplibs="$deplib $compile_deplibs" + finalize_deplibs="$deplib $finalize_deplibs" + fi + func_stripname '-L' '' "$deplib" + func_resolve_sysroot "$func_stripname_result" + func_append newlib_search_path " $func_resolve_sysroot_result" + ;; + *) + func_warning "\`-L' is ignored for archives/objects" + ;; + esac # linkmode + continue + ;; # -L + -R*) + if test "$pass" = link; then + func_stripname '-R' '' "$deplib" + func_resolve_sysroot "$func_stripname_result" + dir=$func_resolve_sysroot_result + # Make sure the xrpath contains only unique directories. + case "$xrpath " in + *" $dir "*) ;; + *) func_append xrpath " $dir" ;; + esac + fi + deplibs="$deplib $deplibs" + continue + ;; + *.la) + func_resolve_sysroot "$deplib" + lib=$func_resolve_sysroot_result + ;; + *.$libext) + if test "$pass" = conv; then + deplibs="$deplib $deplibs" + continue + fi + case $linkmode in + lib) + # Linking convenience modules into shared libraries is allowed, + # but linking other static libraries is non-portable. + case " $dlpreconveniencelibs " in + *" $deplib "*) ;; + *) + valid_a_lib=no + case $deplibs_check_method in + match_pattern*) + set dummy $deplibs_check_method; shift + match_pattern_regex=`expr "$deplibs_check_method" : "$1 \(.*\)"` + if eval "\$ECHO \"$deplib\"" 2>/dev/null | $SED 10q \ + | $EGREP "$match_pattern_regex" > /dev/null; then + valid_a_lib=yes + fi + ;; + pass_all) + valid_a_lib=yes + ;; + esac + if test "$valid_a_lib" != yes; then + echo + $ECHO "*** Warning: Trying to link with static lib archive $deplib." + echo "*** I have the capability to make that library automatically link in when" + echo "*** you link to this library. But I can only do this if you have a" + echo "*** shared version of the library, which you do not appear to have" + echo "*** because the file extensions .$libext of this argument makes me believe" + echo "*** that it is just a static archive that I should not use here." + else + echo + $ECHO "*** Warning: Linking the shared library $output against the" + $ECHO "*** static library $deplib is not portable!" + deplibs="$deplib $deplibs" + fi + ;; + esac + continue + ;; + prog) + if test "$pass" != link; then + deplibs="$deplib $deplibs" + else + compile_deplibs="$deplib $compile_deplibs" + finalize_deplibs="$deplib $finalize_deplibs" + fi + continue + ;; + esac # linkmode + ;; # *.$libext + *.lo | *.$objext) + if test "$pass" = conv; then + deplibs="$deplib $deplibs" + elif test "$linkmode" = prog; then + if test "$pass" = dlpreopen || test "$dlopen_support" != yes || test "$build_libtool_libs" = no; then + # If there is no dlopen support or we're linking statically, + # we need to preload. + func_append newdlprefiles " $deplib" + compile_deplibs="$deplib $compile_deplibs" + finalize_deplibs="$deplib $finalize_deplibs" + else + func_append newdlfiles " $deplib" + fi + fi + continue + ;; + %DEPLIBS%) + alldeplibs=yes + continue + ;; + esac # case $deplib + + if test "$found" = yes || test -f "$lib"; then : + else + func_fatal_error "cannot find the library \`$lib' or unhandled argument \`$deplib'" + fi + + # Check to see that this really is a libtool archive. + func_lalib_unsafe_p "$lib" \ + || func_fatal_error "\`$lib' is not a valid libtool archive" + + func_dirname "$lib" "" "." + ladir="$func_dirname_result" + + dlname= + dlopen= + dlpreopen= + libdir= + library_names= + old_library= + inherited_linker_flags= + # If the library was installed with an old release of libtool, + # it will not redefine variables installed, or shouldnotlink + installed=yes + shouldnotlink=no + avoidtemprpath= + + + # Read the .la file + func_source "$lib" + + # Convert "-framework foo" to "foo.ltframework" + if test -n "$inherited_linker_flags"; then + tmp_inherited_linker_flags=`$ECHO "$inherited_linker_flags" | $SED 's/-framework \([^ $]*\)/\1.ltframework/g'` + for tmp_inherited_linker_flag in $tmp_inherited_linker_flags; do + case " $new_inherited_linker_flags " in + *" $tmp_inherited_linker_flag "*) ;; + *) func_append new_inherited_linker_flags " $tmp_inherited_linker_flag";; + esac + done + fi + dependency_libs=`$ECHO " $dependency_libs" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'` + if test "$linkmode,$pass" = "lib,link" || + test "$linkmode,$pass" = "prog,scan" || + { test "$linkmode" != prog && test "$linkmode" != lib; }; then + test -n "$dlopen" && func_append dlfiles " $dlopen" + test -n "$dlpreopen" && func_append dlprefiles " $dlpreopen" + fi + + if test "$pass" = conv; then + # Only check for convenience libraries + deplibs="$lib $deplibs" + if test -z "$libdir"; then + if test -z "$old_library"; then + func_fatal_error "cannot find name of link library for \`$lib'" + fi + # It is a libtool convenience library, so add in its objects. + func_append convenience " $ladir/$objdir/$old_library" + func_append old_convenience " $ladir/$objdir/$old_library" + elif test "$linkmode" != prog && test "$linkmode" != lib; then + func_fatal_error "\`$lib' is not a convenience library" + fi + tmp_libs= + for deplib in $dependency_libs; do + deplibs="$deplib $deplibs" + if $opt_preserve_dup_deps ; then + case "$tmp_libs " in + *" $deplib "*) func_append specialdeplibs " $deplib" ;; + esac + fi + func_append tmp_libs " $deplib" + done + continue + fi # $pass = conv + + + # Get the name of the library we link against. + linklib= + if test -n "$old_library" && + { test "$prefer_static_libs" = yes || + test "$prefer_static_libs,$installed" = "built,no"; }; then + linklib=$old_library + else + for l in $old_library $library_names; do + linklib="$l" + done + fi + if test -z "$linklib"; then + func_fatal_error "cannot find name of link library for \`$lib'" + fi + + # This library was specified with -dlopen. + if test "$pass" = dlopen; then + if test -z "$libdir"; then + func_fatal_error "cannot -dlopen a convenience library: \`$lib'" + fi + if test -z "$dlname" || + test "$dlopen_support" != yes || + test "$build_libtool_libs" = no; then + # If there is no dlname, no dlopen support or we're linking + # statically, we need to preload. We also need to preload any + # dependent libraries so libltdl's deplib preloader doesn't + # bomb out in the load deplibs phase. + func_append dlprefiles " $lib $dependency_libs" + else + func_append newdlfiles " $lib" + fi + continue + fi # $pass = dlopen + + # We need an absolute path. + case $ladir in + [\\/]* | [A-Za-z]:[\\/]*) abs_ladir="$ladir" ;; + *) + abs_ladir=`cd "$ladir" && pwd` + if test -z "$abs_ladir"; then + func_warning "cannot determine absolute directory name of \`$ladir'" + func_warning "passing it literally to the linker, although it might fail" + abs_ladir="$ladir" + fi + ;; + esac + func_basename "$lib" + laname="$func_basename_result" + + # Find the relevant object directory and library name. + if test "X$installed" = Xyes; then + if test ! -f "$lt_sysroot$libdir/$linklib" && test -f "$abs_ladir/$linklib"; then + func_warning "library \`$lib' was moved." + dir="$ladir" + absdir="$abs_ladir" + libdir="$abs_ladir" + else + dir="$lt_sysroot$libdir" + absdir="$lt_sysroot$libdir" + fi + test "X$hardcode_automatic" = Xyes && avoidtemprpath=yes + else + if test ! -f "$ladir/$objdir/$linklib" && test -f "$abs_ladir/$linklib"; then + dir="$ladir" + absdir="$abs_ladir" + # Remove this search path later + func_append notinst_path " $abs_ladir" + else + dir="$ladir/$objdir" + absdir="$abs_ladir/$objdir" + # Remove this search path later + func_append notinst_path " $abs_ladir" + fi + fi # $installed = yes + func_stripname 'lib' '.la' "$laname" + name=$func_stripname_result + + # This library was specified with -dlpreopen. + if test "$pass" = dlpreopen; then + if test -z "$libdir" && test "$linkmode" = prog; then + func_fatal_error "only libraries may -dlpreopen a convenience library: \`$lib'" + fi + case "$host" in + # special handling for platforms with PE-DLLs. + *cygwin* | *mingw* | *cegcc* ) + # Linker will automatically link against shared library if both + # static and shared are present. Therefore, ensure we extract + # symbols from the import library if a shared library is present + # (otherwise, the dlopen module name will be incorrect). We do + # this by putting the import library name into $newdlprefiles. + # We recover the dlopen module name by 'saving' the la file + # name in a special purpose variable, and (later) extracting the + # dlname from the la file. + if test -n "$dlname"; then + func_tr_sh "$dir/$linklib" + eval "libfile_$func_tr_sh_result=\$abs_ladir/\$laname" + func_append newdlprefiles " $dir/$linklib" + else + func_append newdlprefiles " $dir/$old_library" + # Keep a list of preopened convenience libraries to check + # that they are being used correctly in the link pass. + test -z "$libdir" && \ + func_append dlpreconveniencelibs " $dir/$old_library" + fi + ;; + * ) + # Prefer using a static library (so that no silly _DYNAMIC symbols + # are required to link). + if test -n "$old_library"; then + func_append newdlprefiles " $dir/$old_library" + # Keep a list of preopened convenience libraries to check + # that they are being used correctly in the link pass. + test -z "$libdir" && \ + func_append dlpreconveniencelibs " $dir/$old_library" + # Otherwise, use the dlname, so that lt_dlopen finds it. + elif test -n "$dlname"; then + func_append newdlprefiles " $dir/$dlname" + else + func_append newdlprefiles " $dir/$linklib" + fi + ;; + esac + fi # $pass = dlpreopen + + if test -z "$libdir"; then + # Link the convenience library + if test "$linkmode" = lib; then + deplibs="$dir/$old_library $deplibs" + elif test "$linkmode,$pass" = "prog,link"; then + compile_deplibs="$dir/$old_library $compile_deplibs" + finalize_deplibs="$dir/$old_library $finalize_deplibs" + else + deplibs="$lib $deplibs" # used for prog,scan pass + fi + continue + fi + + + if test "$linkmode" = prog && test "$pass" != link; then + func_append newlib_search_path " $ladir" + deplibs="$lib $deplibs" + + linkalldeplibs=no + if test "$link_all_deplibs" != no || test -z "$library_names" || + test "$build_libtool_libs" = no; then + linkalldeplibs=yes + fi + + tmp_libs= + for deplib in $dependency_libs; do + case $deplib in + -L*) func_stripname '-L' '' "$deplib" + func_resolve_sysroot "$func_stripname_result" + func_append newlib_search_path " $func_resolve_sysroot_result" + ;; + esac + # Need to link against all dependency_libs? + if test "$linkalldeplibs" = yes; then + deplibs="$deplib $deplibs" + else + # Need to hardcode shared library paths + # or/and link against static libraries + newdependency_libs="$deplib $newdependency_libs" + fi + if $opt_preserve_dup_deps ; then + case "$tmp_libs " in + *" $deplib "*) func_append specialdeplibs " $deplib" ;; + esac + fi + func_append tmp_libs " $deplib" + done # for deplib + continue + fi # $linkmode = prog... + + if test "$linkmode,$pass" = "prog,link"; then + if test -n "$library_names" && + { { test "$prefer_static_libs" = no || + test "$prefer_static_libs,$installed" = "built,yes"; } || + test -z "$old_library"; }; then + # We need to hardcode the library path + if test -n "$shlibpath_var" && test -z "$avoidtemprpath" ; then + # Make sure the rpath contains only unique directories. + case "$temp_rpath:" in + *"$absdir:"*) ;; + *) func_append temp_rpath "$absdir:" ;; + esac + fi + + # Hardcode the library path. + # Skip directories that are in the system default run-time + # search path. + case " $sys_lib_dlsearch_path " in + *" $absdir "*) ;; + *) + case "$compile_rpath " in + *" $absdir "*) ;; + *) func_append compile_rpath " $absdir" ;; + esac + ;; + esac + case " $sys_lib_dlsearch_path " in + *" $libdir "*) ;; + *) + case "$finalize_rpath " in + *" $libdir "*) ;; + *) func_append finalize_rpath " $libdir" ;; + esac + ;; + esac + fi # $linkmode,$pass = prog,link... + + if test "$alldeplibs" = yes && + { test "$deplibs_check_method" = pass_all || + { test "$build_libtool_libs" = yes && + test -n "$library_names"; }; }; then + # We only need to search for static libraries + continue + fi + fi + + link_static=no # Whether the deplib will be linked statically + use_static_libs=$prefer_static_libs + if test "$use_static_libs" = built && test "$installed" = yes; then + use_static_libs=no + fi + if test -n "$library_names" && + { test "$use_static_libs" = no || test -z "$old_library"; }; then + case $host in + *cygwin* | *mingw* | *cegcc*) + # No point in relinking DLLs because paths are not encoded + func_append notinst_deplibs " $lib" + need_relink=no + ;; + *) + if test "$installed" = no; then + func_append notinst_deplibs " $lib" + need_relink=yes + fi + ;; + esac + # This is a shared library + + # Warn about portability, can't link against -module's on some + # systems (darwin). Don't bleat about dlopened modules though! + dlopenmodule="" + for dlpremoduletest in $dlprefiles; do + if test "X$dlpremoduletest" = "X$lib"; then + dlopenmodule="$dlpremoduletest" + break + fi + done + if test -z "$dlopenmodule" && test "$shouldnotlink" = yes && test "$pass" = link; then + echo + if test "$linkmode" = prog; then + $ECHO "*** Warning: Linking the executable $output against the loadable module" + else + $ECHO "*** Warning: Linking the shared library $output against the loadable module" + fi + $ECHO "*** $linklib is not portable!" + fi + if test "$linkmode" = lib && + test "$hardcode_into_libs" = yes; then + # Hardcode the library path. + # Skip directories that are in the system default run-time + # search path. + case " $sys_lib_dlsearch_path " in + *" $absdir "*) ;; + *) + case "$compile_rpath " in + *" $absdir "*) ;; + *) func_append compile_rpath " $absdir" ;; + esac + ;; + esac + case " $sys_lib_dlsearch_path " in + *" $libdir "*) ;; + *) + case "$finalize_rpath " in + *" $libdir "*) ;; + *) func_append finalize_rpath " $libdir" ;; + esac + ;; + esac + fi + + if test -n "$old_archive_from_expsyms_cmds"; then + # figure out the soname + set dummy $library_names + shift + realname="$1" + shift + libname=`eval "\\$ECHO \"$libname_spec\""` + # use dlname if we got it. it's perfectly good, no? + if test -n "$dlname"; then + soname="$dlname" + elif test -n "$soname_spec"; then + # bleh windows + case $host in + *cygwin* | mingw* | *cegcc*) + func_arith $current - $age + major=$func_arith_result + versuffix="-$major" + ;; + esac + eval soname=\"$soname_spec\" + else + soname="$realname" + fi + + # Make a new name for the extract_expsyms_cmds to use + soroot="$soname" + func_basename "$soroot" + soname="$func_basename_result" + func_stripname 'lib' '.dll' "$soname" + newlib=libimp-$func_stripname_result.a + + # If the library has no export list, then create one now + if test -f "$output_objdir/$soname-def"; then : + else + func_verbose "extracting exported symbol list from \`$soname'" + func_execute_cmds "$extract_expsyms_cmds" 'exit $?' + fi + + # Create $newlib + if test -f "$output_objdir/$newlib"; then :; else + func_verbose "generating import library for \`$soname'" + func_execute_cmds "$old_archive_from_expsyms_cmds" 'exit $?' + fi + # make sure the library variables are pointing to the new library + dir=$output_objdir + linklib=$newlib + fi # test -n "$old_archive_from_expsyms_cmds" + + if test "$linkmode" = prog || test "$opt_mode" != relink; then + add_shlibpath= + add_dir= + add= + lib_linked=yes + case $hardcode_action in + immediate | unsupported) + if test "$hardcode_direct" = no; then + add="$dir/$linklib" + case $host in + *-*-sco3.2v5.0.[024]*) add_dir="-L$dir" ;; + *-*-sysv4*uw2*) add_dir="-L$dir" ;; + *-*-sysv5OpenUNIX* | *-*-sysv5UnixWare7.[01].[10]* | \ + *-*-unixware7*) add_dir="-L$dir" ;; + *-*-darwin* ) + # if the lib is a (non-dlopened) module then we can not + # link against it, someone is ignoring the earlier warnings + if /usr/bin/file -L $add 2> /dev/null | + $GREP ": [^:]* bundle" >/dev/null ; then + if test "X$dlopenmodule" != "X$lib"; then + $ECHO "*** Warning: lib $linklib is a module, not a shared library" + if test -z "$old_library" ; then + echo + echo "*** And there doesn't seem to be a static archive available" + echo "*** The link will probably fail, sorry" + else + add="$dir/$old_library" + fi + elif test -n "$old_library"; then + add="$dir/$old_library" + fi + fi + esac + elif test "$hardcode_minus_L" = no; then + case $host in + *-*-sunos*) add_shlibpath="$dir" ;; + esac + add_dir="-L$dir" + add="-l$name" + elif test "$hardcode_shlibpath_var" = no; then + add_shlibpath="$dir" + add="-l$name" + else + lib_linked=no + fi + ;; + relink) + if test "$hardcode_direct" = yes && + test "$hardcode_direct_absolute" = no; then + add="$dir/$linklib" + elif test "$hardcode_minus_L" = yes; then + add_dir="-L$absdir" + # Try looking first in the location we're being installed to. + if test -n "$inst_prefix_dir"; then + case $libdir in + [\\/]*) + func_append add_dir " -L$inst_prefix_dir$libdir" + ;; + esac + fi + add="-l$name" + elif test "$hardcode_shlibpath_var" = yes; then + add_shlibpath="$dir" + add="-l$name" + else + lib_linked=no + fi + ;; + *) lib_linked=no ;; + esac + + if test "$lib_linked" != yes; then + func_fatal_configuration "unsupported hardcode properties" + fi + + if test -n "$add_shlibpath"; then + case :$compile_shlibpath: in + *":$add_shlibpath:"*) ;; + *) func_append compile_shlibpath "$add_shlibpath:" ;; + esac + fi + if test "$linkmode" = prog; then + test -n "$add_dir" && compile_deplibs="$add_dir $compile_deplibs" + test -n "$add" && compile_deplibs="$add $compile_deplibs" + else + test -n "$add_dir" && deplibs="$add_dir $deplibs" + test -n "$add" && deplibs="$add $deplibs" + if test "$hardcode_direct" != yes && + test "$hardcode_minus_L" != yes && + test "$hardcode_shlibpath_var" = yes; then + case :$finalize_shlibpath: in + *":$libdir:"*) ;; + *) func_append finalize_shlibpath "$libdir:" ;; + esac + fi + fi + fi + + if test "$linkmode" = prog || test "$opt_mode" = relink; then + add_shlibpath= + add_dir= + add= + # Finalize command for both is simple: just hardcode it. + if test "$hardcode_direct" = yes && + test "$hardcode_direct_absolute" = no; then + add="$libdir/$linklib" + elif test "$hardcode_minus_L" = yes; then + add_dir="-L$libdir" + add="-l$name" + elif test "$hardcode_shlibpath_var" = yes; then + case :$finalize_shlibpath: in + *":$libdir:"*) ;; + *) func_append finalize_shlibpath "$libdir:" ;; + esac + add="-l$name" + elif test "$hardcode_automatic" = yes; then + if test -n "$inst_prefix_dir" && + test -f "$inst_prefix_dir$libdir/$linklib" ; then + add="$inst_prefix_dir$libdir/$linklib" + else + add="$libdir/$linklib" + fi + else + # We cannot seem to hardcode it, guess we'll fake it. + add_dir="-L$libdir" + # Try looking first in the location we're being installed to. + if test -n "$inst_prefix_dir"; then + case $libdir in + [\\/]*) + func_append add_dir " -L$inst_prefix_dir$libdir" + ;; + esac + fi + add="-l$name" + fi + + if test "$linkmode" = prog; then + test -n "$add_dir" && finalize_deplibs="$add_dir $finalize_deplibs" + test -n "$add" && finalize_deplibs="$add $finalize_deplibs" + else + test -n "$add_dir" && deplibs="$add_dir $deplibs" + test -n "$add" && deplibs="$add $deplibs" + fi + fi + elif test "$linkmode" = prog; then + # Here we assume that one of hardcode_direct or hardcode_minus_L + # is not unsupported. This is valid on all known static and + # shared platforms. + if test "$hardcode_direct" != unsupported; then + test -n "$old_library" && linklib="$old_library" + compile_deplibs="$dir/$linklib $compile_deplibs" + finalize_deplibs="$dir/$linklib $finalize_deplibs" + else + compile_deplibs="-l$name -L$dir $compile_deplibs" + finalize_deplibs="-l$name -L$dir $finalize_deplibs" + fi + elif test "$build_libtool_libs" = yes; then + # Not a shared library + if test "$deplibs_check_method" != pass_all; then + # We're trying link a shared library against a static one + # but the system doesn't support it. + + # Just print a warning and add the library to dependency_libs so + # that the program can be linked against the static library. + echo + $ECHO "*** Warning: This system can not link to static lib archive $lib." + echo "*** I have the capability to make that library automatically link in when" + echo "*** you link to this library. But I can only do this if you have a" + echo "*** shared version of the library, which you do not appear to have." + if test "$module" = yes; then + echo "*** But as you try to build a module library, libtool will still create " + echo "*** a static module, that should work as long as the dlopening application" + echo "*** is linked with the -dlopen flag to resolve symbols at runtime." + if test -z "$global_symbol_pipe"; then + echo + echo "*** However, this would only work if libtool was able to extract symbol" + echo "*** lists from a program, using \`nm' or equivalent, but libtool could" + echo "*** not find such a program. So, this module is probably useless." + echo "*** \`nm' from GNU binutils and a full rebuild may help." + fi + if test "$build_old_libs" = no; then + build_libtool_libs=module + build_old_libs=yes + else + build_libtool_libs=no + fi + fi + else + deplibs="$dir/$old_library $deplibs" + link_static=yes + fi + fi # link shared/static library? + + if test "$linkmode" = lib; then + if test -n "$dependency_libs" && + { test "$hardcode_into_libs" != yes || + test "$build_old_libs" = yes || + test "$link_static" = yes; }; then + # Extract -R from dependency_libs + temp_deplibs= + for libdir in $dependency_libs; do + case $libdir in + -R*) func_stripname '-R' '' "$libdir" + temp_xrpath=$func_stripname_result + case " $xrpath " in + *" $temp_xrpath "*) ;; + *) func_append xrpath " $temp_xrpath";; + esac;; + *) func_append temp_deplibs " $libdir";; + esac + done + dependency_libs="$temp_deplibs" + fi + + func_append newlib_search_path " $absdir" + # Link against this library + test "$link_static" = no && newdependency_libs="$abs_ladir/$laname $newdependency_libs" + # ... and its dependency_libs + tmp_libs= + for deplib in $dependency_libs; do + newdependency_libs="$deplib $newdependency_libs" + case $deplib in + -L*) func_stripname '-L' '' "$deplib" + func_resolve_sysroot "$func_stripname_result";; + *) func_resolve_sysroot "$deplib" ;; + esac + if $opt_preserve_dup_deps ; then + case "$tmp_libs " in + *" $func_resolve_sysroot_result "*) + func_append specialdeplibs " $func_resolve_sysroot_result" ;; + esac + fi + func_append tmp_libs " $func_resolve_sysroot_result" + done + + if test "$link_all_deplibs" != no; then + # Add the search paths of all dependency libraries + for deplib in $dependency_libs; do + path= + case $deplib in + -L*) path="$deplib" ;; + *.la) + func_resolve_sysroot "$deplib" + deplib=$func_resolve_sysroot_result + func_dirname "$deplib" "" "." + dir=$func_dirname_result + # We need an absolute path. + case $dir in + [\\/]* | [A-Za-z]:[\\/]*) absdir="$dir" ;; + *) + absdir=`cd "$dir" && pwd` + if test -z "$absdir"; then + func_warning "cannot determine absolute directory name of \`$dir'" + absdir="$dir" + fi + ;; + esac + if $GREP "^installed=no" $deplib > /dev/null; then + case $host in + *-*-darwin*) + depdepl= + eval deplibrary_names=`${SED} -n -e 's/^library_names=\(.*\)$/\1/p' $deplib` + if test -n "$deplibrary_names" ; then + for tmp in $deplibrary_names ; do + depdepl=$tmp + done + if test -f "$absdir/$objdir/$depdepl" ; then + depdepl="$absdir/$objdir/$depdepl" + darwin_install_name=`${OTOOL} -L $depdepl | awk '{if (NR == 2) {print $1;exit}}'` + if test -z "$darwin_install_name"; then + darwin_install_name=`${OTOOL64} -L $depdepl | awk '{if (NR == 2) {print $1;exit}}'` + fi + func_append compiler_flags " ${wl}-dylib_file ${wl}${darwin_install_name}:${depdepl}" + func_append linker_flags " -dylib_file ${darwin_install_name}:${depdepl}" + path= + fi + fi + ;; + *) + path="-L$absdir/$objdir" + ;; + esac + else + eval libdir=`${SED} -n -e 's/^libdir=\(.*\)$/\1/p' $deplib` + test -z "$libdir" && \ + func_fatal_error "\`$deplib' is not a valid libtool archive" + test "$absdir" != "$libdir" && \ + func_warning "\`$deplib' seems to be moved" + + path="-L$absdir" + fi + ;; + esac + case " $deplibs " in + *" $path "*) ;; + *) deplibs="$path $deplibs" ;; + esac + done + fi # link_all_deplibs != no + fi # linkmode = lib + done # for deplib in $libs + if test "$pass" = link; then + if test "$linkmode" = "prog"; then + compile_deplibs="$new_inherited_linker_flags $compile_deplibs" + finalize_deplibs="$new_inherited_linker_flags $finalize_deplibs" + else + compiler_flags="$compiler_flags "`$ECHO " $new_inherited_linker_flags" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'` + fi + fi + dependency_libs="$newdependency_libs" + if test "$pass" = dlpreopen; then + # Link the dlpreopened libraries before other libraries + for deplib in $save_deplibs; do + deplibs="$deplib $deplibs" + done + fi + if test "$pass" != dlopen; then + if test "$pass" != conv; then + # Make sure lib_search_path contains only unique directories. + lib_search_path= + for dir in $newlib_search_path; do + case "$lib_search_path " in + *" $dir "*) ;; + *) func_append lib_search_path " $dir" ;; + esac + done + newlib_search_path= + fi + + if test "$linkmode,$pass" != "prog,link"; then + vars="deplibs" + else + vars="compile_deplibs finalize_deplibs" + fi + for var in $vars dependency_libs; do + # Add libraries to $var in reverse order + eval tmp_libs=\"\$$var\" + new_libs= + for deplib in $tmp_libs; do + # FIXME: Pedantically, this is the right thing to do, so + # that some nasty dependency loop isn't accidentally + # broken: + #new_libs="$deplib $new_libs" + # Pragmatically, this seems to cause very few problems in + # practice: + case $deplib in + -L*) new_libs="$deplib $new_libs" ;; + -R*) ;; + *) + # And here is the reason: when a library appears more + # than once as an explicit dependence of a library, or + # is implicitly linked in more than once by the + # compiler, it is considered special, and multiple + # occurrences thereof are not removed. Compare this + # with having the same library being listed as a + # dependency of multiple other libraries: in this case, + # we know (pedantically, we assume) the library does not + # need to be listed more than once, so we keep only the + # last copy. This is not always right, but it is rare + # enough that we require users that really mean to play + # such unportable linking tricks to link the library + # using -Wl,-lname, so that libtool does not consider it + # for duplicate removal. + case " $specialdeplibs " in + *" $deplib "*) new_libs="$deplib $new_libs" ;; + *) + case " $new_libs " in + *" $deplib "*) ;; + *) new_libs="$deplib $new_libs" ;; + esac + ;; + esac + ;; + esac + done + tmp_libs= + for deplib in $new_libs; do + case $deplib in + -L*) + case " $tmp_libs " in + *" $deplib "*) ;; + *) func_append tmp_libs " $deplib" ;; + esac + ;; + *) func_append tmp_libs " $deplib" ;; + esac + done + eval $var=\"$tmp_libs\" + done # for var + fi + # Last step: remove runtime libs from dependency_libs + # (they stay in deplibs) + tmp_libs= + for i in $dependency_libs ; do + case " $predeps $postdeps $compiler_lib_search_path " in + *" $i "*) + i="" + ;; + esac + if test -n "$i" ; then + func_append tmp_libs " $i" + fi + done + dependency_libs=$tmp_libs + done # for pass + if test "$linkmode" = prog; then + dlfiles="$newdlfiles" + fi + if test "$linkmode" = prog || test "$linkmode" = lib; then + dlprefiles="$newdlprefiles" + fi + + case $linkmode in + oldlib) + if test -n "$dlfiles$dlprefiles" || test "$dlself" != no; then + func_warning "\`-dlopen' is ignored for archives" + fi + + case " $deplibs" in + *\ -l* | *\ -L*) + func_warning "\`-l' and \`-L' are ignored for archives" ;; + esac + + test -n "$rpath" && \ + func_warning "\`-rpath' is ignored for archives" + + test -n "$xrpath" && \ + func_warning "\`-R' is ignored for archives" + + test -n "$vinfo" && \ + func_warning "\`-version-info/-version-number' is ignored for archives" + + test -n "$release" && \ + func_warning "\`-release' is ignored for archives" + + test -n "$export_symbols$export_symbols_regex" && \ + func_warning "\`-export-symbols' is ignored for archives" + + # Now set the variables for building old libraries. + build_libtool_libs=no + oldlibs="$output" + func_append objs "$old_deplibs" + ;; + + lib) + # Make sure we only generate libraries of the form `libNAME.la'. + case $outputname in + lib*) + func_stripname 'lib' '.la' "$outputname" + name=$func_stripname_result + eval shared_ext=\"$shrext_cmds\" + eval libname=\"$libname_spec\" + ;; + *) + test "$module" = no && \ + func_fatal_help "libtool library \`$output' must begin with \`lib'" + + if test "$need_lib_prefix" != no; then + # Add the "lib" prefix for modules if required + func_stripname '' '.la' "$outputname" + name=$func_stripname_result + eval shared_ext=\"$shrext_cmds\" + eval libname=\"$libname_spec\" + else + func_stripname '' '.la' "$outputname" + libname=$func_stripname_result + fi + ;; + esac + + if test -n "$objs"; then + if test "$deplibs_check_method" != pass_all; then + func_fatal_error "cannot build libtool library \`$output' from non-libtool objects on this host:$objs" + else + echo + $ECHO "*** Warning: Linking the shared library $output against the non-libtool" + $ECHO "*** objects $objs is not portable!" + func_append libobjs " $objs" + fi + fi + + test "$dlself" != no && \ + func_warning "\`-dlopen self' is ignored for libtool libraries" + + set dummy $rpath + shift + test "$#" -gt 1 && \ + func_warning "ignoring multiple \`-rpath's for a libtool library" + + install_libdir="$1" + + oldlibs= + if test -z "$rpath"; then + if test "$build_libtool_libs" = yes; then + # Building a libtool convenience library. + # Some compilers have problems with a `.al' extension so + # convenience libraries should have the same extension an + # archive normally would. + oldlibs="$output_objdir/$libname.$libext $oldlibs" + build_libtool_libs=convenience + build_old_libs=yes + fi + + test -n "$vinfo" && \ + func_warning "\`-version-info/-version-number' is ignored for convenience libraries" + + test -n "$release" && \ + func_warning "\`-release' is ignored for convenience libraries" + else + + # Parse the version information argument. + save_ifs="$IFS"; IFS=':' + set dummy $vinfo 0 0 0 + shift + IFS="$save_ifs" + + test -n "$7" && \ + func_fatal_help "too many parameters to \`-version-info'" + + # convert absolute version numbers to libtool ages + # this retains compatibility with .la files and attempts + # to make the code below a bit more comprehensible + + case $vinfo_number in + yes) + number_major="$1" + number_minor="$2" + number_revision="$3" + # + # There are really only two kinds -- those that + # use the current revision as the major version + # and those that subtract age and use age as + # a minor version. But, then there is irix + # which has an extra 1 added just for fun + # + case $version_type in + # correct linux to gnu/linux during the next big refactor + darwin|linux|osf|windows|none) + func_arith $number_major + $number_minor + current=$func_arith_result + age="$number_minor" + revision="$number_revision" + ;; + freebsd-aout|freebsd-elf|qnx|sunos) + current="$number_major" + revision="$number_minor" + age="0" + ;; + irix|nonstopux) + func_arith $number_major + $number_minor + current=$func_arith_result + age="$number_minor" + revision="$number_minor" + lt_irix_increment=no + ;; + esac + ;; + no) + current="$1" + revision="$2" + age="$3" + ;; + esac + + # Check that each of the things are valid numbers. + case $current in + 0|[1-9]|[1-9][0-9]|[1-9][0-9][0-9]|[1-9][0-9][0-9][0-9]|[1-9][0-9][0-9][0-9][0-9]) ;; + *) + func_error "CURRENT \`$current' must be a nonnegative integer" + func_fatal_error "\`$vinfo' is not valid version information" + ;; + esac + + case $revision in + 0|[1-9]|[1-9][0-9]|[1-9][0-9][0-9]|[1-9][0-9][0-9][0-9]|[1-9][0-9][0-9][0-9][0-9]) ;; + *) + func_error "REVISION \`$revision' must be a nonnegative integer" + func_fatal_error "\`$vinfo' is not valid version information" + ;; + esac + + case $age in + 0|[1-9]|[1-9][0-9]|[1-9][0-9][0-9]|[1-9][0-9][0-9][0-9]|[1-9][0-9][0-9][0-9][0-9]) ;; + *) + func_error "AGE \`$age' must be a nonnegative integer" + func_fatal_error "\`$vinfo' is not valid version information" + ;; + esac + + if test "$age" -gt "$current"; then + func_error "AGE \`$age' is greater than the current interface number \`$current'" + func_fatal_error "\`$vinfo' is not valid version information" + fi + + # Calculate the version variables. + major= + versuffix= + verstring= + case $version_type in + none) ;; + + darwin) + # Like Linux, but with the current version available in + # verstring for coding it into the library header + func_arith $current - $age + major=.$func_arith_result + versuffix="$major.$age.$revision" + # Darwin ld doesn't like 0 for these options... + func_arith $current + 1 + minor_current=$func_arith_result + xlcverstring="${wl}-compatibility_version ${wl}$minor_current ${wl}-current_version ${wl}$minor_current.$revision" + verstring="-compatibility_version $minor_current -current_version $minor_current.$revision" + ;; + + freebsd-aout) + major=".$current" + versuffix=".$current.$revision"; + ;; + + freebsd-elf) + major=".$current" + versuffix=".$current" + ;; + + irix | nonstopux) + if test "X$lt_irix_increment" = "Xno"; then + func_arith $current - $age + else + func_arith $current - $age + 1 + fi + major=$func_arith_result + + case $version_type in + nonstopux) verstring_prefix=nonstopux ;; + *) verstring_prefix=sgi ;; + esac + verstring="$verstring_prefix$major.$revision" + + # Add in all the interfaces that we are compatible with. + loop=$revision + while test "$loop" -ne 0; do + func_arith $revision - $loop + iface=$func_arith_result + func_arith $loop - 1 + loop=$func_arith_result + verstring="$verstring_prefix$major.$iface:$verstring" + done + + # Before this point, $major must not contain `.'. + major=.$major + versuffix="$major.$revision" + ;; + + linux) # correct to gnu/linux during the next big refactor + func_arith $current - $age + major=.$func_arith_result + versuffix="$major.$age.$revision" + ;; + + osf) + func_arith $current - $age + major=.$func_arith_result + versuffix=".$current.$age.$revision" + verstring="$current.$age.$revision" + + # Add in all the interfaces that we are compatible with. + loop=$age + while test "$loop" -ne 0; do + func_arith $current - $loop + iface=$func_arith_result + func_arith $loop - 1 + loop=$func_arith_result + verstring="$verstring:${iface}.0" + done + + # Make executables depend on our current version. + func_append verstring ":${current}.0" + ;; + + qnx) + major=".$current" + versuffix=".$current" + ;; + + sunos) + major=".$current" + versuffix=".$current.$revision" + ;; + + windows) + # Use '-' rather than '.', since we only want one + # extension on DOS 8.3 filesystems. + func_arith $current - $age + major=$func_arith_result + versuffix="-$major" + ;; + + *) + func_fatal_configuration "unknown library version type \`$version_type'" + ;; + esac + + # Clear the version info if we defaulted, and they specified a release. + if test -z "$vinfo" && test -n "$release"; then + major= + case $version_type in + darwin) + # we can't check for "0.0" in archive_cmds due to quoting + # problems, so we reset it completely + verstring= + ;; + *) + verstring="0.0" + ;; + esac + if test "$need_version" = no; then + versuffix= + else + versuffix=".0.0" + fi + fi + + # Remove version info from name if versioning should be avoided + if test "$avoid_version" = yes && test "$need_version" = no; then + major= + versuffix= + verstring="" + fi + + # Check to see if the archive will have undefined symbols. + if test "$allow_undefined" = yes; then + if test "$allow_undefined_flag" = unsupported; then + func_warning "undefined symbols not allowed in $host shared libraries" + build_libtool_libs=no + build_old_libs=yes + fi + else + # Don't allow undefined symbols. + allow_undefined_flag="$no_undefined_flag" + fi + + fi + + func_generate_dlsyms "$libname" "$libname" "yes" + func_append libobjs " $symfileobj" + test "X$libobjs" = "X " && libobjs= + + if test "$opt_mode" != relink; then + # Remove our outputs, but don't remove object files since they + # may have been created when compiling PIC objects. + removelist= + tempremovelist=`$ECHO "$output_objdir/*"` + for p in $tempremovelist; do + case $p in + *.$objext | *.gcno) + ;; + $output_objdir/$outputname | $output_objdir/$libname.* | $output_objdir/${libname}${release}.*) + if test "X$precious_files_regex" != "X"; then + if $ECHO "$p" | $EGREP -e "$precious_files_regex" >/dev/null 2>&1 + then + continue + fi + fi + func_append removelist " $p" + ;; + *) ;; + esac + done + test -n "$removelist" && \ + func_show_eval "${RM}r \$removelist" + fi + + # Now set the variables for building old libraries. + if test "$build_old_libs" = yes && test "$build_libtool_libs" != convenience ; then + func_append oldlibs " $output_objdir/$libname.$libext" + + # Transform .lo files to .o files. + oldobjs="$objs "`$ECHO "$libobjs" | $SP2NL | $SED "/\.${libext}$/d; $lo2o" | $NL2SP` + fi + + # Eliminate all temporary directories. + #for path in $notinst_path; do + # lib_search_path=`$ECHO "$lib_search_path " | $SED "s% $path % %g"` + # deplibs=`$ECHO "$deplibs " | $SED "s% -L$path % %g"` + # dependency_libs=`$ECHO "$dependency_libs " | $SED "s% -L$path % %g"` + #done + + if test -n "$xrpath"; then + # If the user specified any rpath flags, then add them. + temp_xrpath= + for libdir in $xrpath; do + func_replace_sysroot "$libdir" + func_append temp_xrpath " -R$func_replace_sysroot_result" + case "$finalize_rpath " in + *" $libdir "*) ;; + *) func_append finalize_rpath " $libdir" ;; + esac + done + if test "$hardcode_into_libs" != yes || test "$build_old_libs" = yes; then + dependency_libs="$temp_xrpath $dependency_libs" + fi + fi + + # Make sure dlfiles contains only unique files that won't be dlpreopened + old_dlfiles="$dlfiles" + dlfiles= + for lib in $old_dlfiles; do + case " $dlprefiles $dlfiles " in + *" $lib "*) ;; + *) func_append dlfiles " $lib" ;; + esac + done + + # Make sure dlprefiles contains only unique files + old_dlprefiles="$dlprefiles" + dlprefiles= + for lib in $old_dlprefiles; do + case "$dlprefiles " in + *" $lib "*) ;; + *) func_append dlprefiles " $lib" ;; + esac + done + + if test "$build_libtool_libs" = yes; then + if test -n "$rpath"; then + case $host in + *-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-os2* | *-*-beos* | *-cegcc* | *-*-haiku*) + # these systems don't actually have a c library (as such)! + ;; + *-*-rhapsody* | *-*-darwin1.[012]) + # Rhapsody C library is in the System framework + func_append deplibs " System.ltframework" + ;; + *-*-netbsd*) + # Don't link with libc until the a.out ld.so is fixed. + ;; + *-*-openbsd* | *-*-freebsd* | *-*-dragonfly*) + # Do not include libc due to us having libc/libc_r. + ;; + *-*-sco3.2v5* | *-*-sco5v6*) + # Causes problems with __ctype + ;; + *-*-sysv4.2uw2* | *-*-sysv5* | *-*-unixware* | *-*-OpenUNIX*) + # Compiler inserts libc in the correct place for threads to work + ;; + *) + # Add libc to deplibs on all other systems if necessary. + if test "$build_libtool_need_lc" = "yes"; then + func_append deplibs " -lc" + fi + ;; + esac + fi + + # Transform deplibs into only deplibs that can be linked in shared. + name_save=$name + libname_save=$libname + release_save=$release + versuffix_save=$versuffix + major_save=$major + # I'm not sure if I'm treating the release correctly. I think + # release should show up in the -l (ie -lgmp5) so we don't want to + # add it in twice. Is that correct? + release="" + versuffix="" + major="" + newdeplibs= + droppeddeps=no + case $deplibs_check_method in + pass_all) + # Don't check for shared/static. Everything works. + # This might be a little naive. We might want to check + # whether the library exists or not. But this is on + # osf3 & osf4 and I'm not really sure... Just + # implementing what was already the behavior. + newdeplibs=$deplibs + ;; + test_compile) + # This code stresses the "libraries are programs" paradigm to its + # limits. Maybe even breaks it. We compile a program, linking it + # against the deplibs as a proxy for the library. Then we can check + # whether they linked in statically or dynamically with ldd. + $opt_dry_run || $RM conftest.c + cat > conftest.c </dev/null` + $nocaseglob + else + potential_libs=`ls $i/$libnameglob[.-]* 2>/dev/null` + fi + for potent_lib in $potential_libs; do + # Follow soft links. + if ls -lLd "$potent_lib" 2>/dev/null | + $GREP " -> " >/dev/null; then + continue + fi + # The statement above tries to avoid entering an + # endless loop below, in case of cyclic links. + # We might still enter an endless loop, since a link + # loop can be closed while we follow links, + # but so what? + potlib="$potent_lib" + while test -h "$potlib" 2>/dev/null; do + potliblink=`ls -ld $potlib | ${SED} 's/.* -> //'` + case $potliblink in + [\\/]* | [A-Za-z]:[\\/]*) potlib="$potliblink";; + *) potlib=`$ECHO "$potlib" | $SED 's,[^/]*$,,'`"$potliblink";; + esac + done + if eval $file_magic_cmd \"\$potlib\" 2>/dev/null | + $SED -e 10q | + $EGREP "$file_magic_regex" > /dev/null; then + func_append newdeplibs " $a_deplib" + a_deplib="" + break 2 + fi + done + done + fi + if test -n "$a_deplib" ; then + droppeddeps=yes + echo + $ECHO "*** Warning: linker path does not have real file for library $a_deplib." + echo "*** I have the capability to make that library automatically link in when" + echo "*** you link to this library. But I can only do this if you have a" + echo "*** shared version of the library, which you do not appear to have" + echo "*** because I did check the linker path looking for a file starting" + if test -z "$potlib" ; then + $ECHO "*** with $libname but no candidates were found. (...for file magic test)" + else + $ECHO "*** with $libname and none of the candidates passed a file format test" + $ECHO "*** using a file magic. Last file checked: $potlib" + fi + fi + ;; + *) + # Add a -L argument. + func_append newdeplibs " $a_deplib" + ;; + esac + done # Gone through all deplibs. + ;; + match_pattern*) + set dummy $deplibs_check_method; shift + match_pattern_regex=`expr "$deplibs_check_method" : "$1 \(.*\)"` + for a_deplib in $deplibs; do + case $a_deplib in + -l*) + func_stripname -l '' "$a_deplib" + name=$func_stripname_result + if test "X$allow_libtool_libs_with_static_runtimes" = "Xyes" ; then + case " $predeps $postdeps " in + *" $a_deplib "*) + func_append newdeplibs " $a_deplib" + a_deplib="" + ;; + esac + fi + if test -n "$a_deplib" ; then + libname=`eval "\\$ECHO \"$libname_spec\""` + for i in $lib_search_path $sys_lib_search_path $shlib_search_path; do + potential_libs=`ls $i/$libname[.-]* 2>/dev/null` + for potent_lib in $potential_libs; do + potlib="$potent_lib" # see symlink-check above in file_magic test + if eval "\$ECHO \"$potent_lib\"" 2>/dev/null | $SED 10q | \ + $EGREP "$match_pattern_regex" > /dev/null; then + func_append newdeplibs " $a_deplib" + a_deplib="" + break 2 + fi + done + done + fi + if test -n "$a_deplib" ; then + droppeddeps=yes + echo + $ECHO "*** Warning: linker path does not have real file for library $a_deplib." + echo "*** I have the capability to make that library automatically link in when" + echo "*** you link to this library. But I can only do this if you have a" + echo "*** shared version of the library, which you do not appear to have" + echo "*** because I did check the linker path looking for a file starting" + if test -z "$potlib" ; then + $ECHO "*** with $libname but no candidates were found. (...for regex pattern test)" + else + $ECHO "*** with $libname and none of the candidates passed a file format test" + $ECHO "*** using a regex pattern. Last file checked: $potlib" + fi + fi + ;; + *) + # Add a -L argument. + func_append newdeplibs " $a_deplib" + ;; + esac + done # Gone through all deplibs. + ;; + none | unknown | *) + newdeplibs="" + tmp_deplibs=`$ECHO " $deplibs" | $SED 's/ -lc$//; s/ -[LR][^ ]*//g'` + if test "X$allow_libtool_libs_with_static_runtimes" = "Xyes" ; then + for i in $predeps $postdeps ; do + # can't use Xsed below, because $i might contain '/' + tmp_deplibs=`$ECHO " $tmp_deplibs" | $SED "s,$i,,"` + done + fi + case $tmp_deplibs in + *[!\ \ ]*) + echo + if test "X$deplibs_check_method" = "Xnone"; then + echo "*** Warning: inter-library dependencies are not supported in this platform." + else + echo "*** Warning: inter-library dependencies are not known to be supported." + fi + echo "*** All declared inter-library dependencies are being dropped." + droppeddeps=yes + ;; + esac + ;; + esac + versuffix=$versuffix_save + major=$major_save + release=$release_save + libname=$libname_save + name=$name_save + + case $host in + *-*-rhapsody* | *-*-darwin1.[012]) + # On Rhapsody replace the C library with the System framework + newdeplibs=`$ECHO " $newdeplibs" | $SED 's/ -lc / System.ltframework /'` + ;; + esac + + if test "$droppeddeps" = yes; then + if test "$module" = yes; then + echo + echo "*** Warning: libtool could not satisfy all declared inter-library" + $ECHO "*** dependencies of module $libname. Therefore, libtool will create" + echo "*** a static module, that should work as long as the dlopening" + echo "*** application is linked with the -dlopen flag." + if test -z "$global_symbol_pipe"; then + echo + echo "*** However, this would only work if libtool was able to extract symbol" + echo "*** lists from a program, using \`nm' or equivalent, but libtool could" + echo "*** not find such a program. So, this module is probably useless." + echo "*** \`nm' from GNU binutils and a full rebuild may help." + fi + if test "$build_old_libs" = no; then + oldlibs="$output_objdir/$libname.$libext" + build_libtool_libs=module + build_old_libs=yes + else + build_libtool_libs=no + fi + else + echo "*** The inter-library dependencies that have been dropped here will be" + echo "*** automatically added whenever a program is linked with this library" + echo "*** or is declared to -dlopen it." + + if test "$allow_undefined" = no; then + echo + echo "*** Since this library must not contain undefined symbols," + echo "*** because either the platform does not support them or" + echo "*** it was explicitly requested with -no-undefined," + echo "*** libtool will only create a static version of it." + if test "$build_old_libs" = no; then + oldlibs="$output_objdir/$libname.$libext" + build_libtool_libs=module + build_old_libs=yes + else + build_libtool_libs=no + fi + fi + fi + fi + # Done checking deplibs! + deplibs=$newdeplibs + fi + # Time to change all our "foo.ltframework" stuff back to "-framework foo" + case $host in + *-*-darwin*) + newdeplibs=`$ECHO " $newdeplibs" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'` + new_inherited_linker_flags=`$ECHO " $new_inherited_linker_flags" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'` + deplibs=`$ECHO " $deplibs" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'` + ;; + esac + + # move library search paths that coincide with paths to not yet + # installed libraries to the beginning of the library search list + new_libs= + for path in $notinst_path; do + case " $new_libs " in + *" -L$path/$objdir "*) ;; + *) + case " $deplibs " in + *" -L$path/$objdir "*) + func_append new_libs " -L$path/$objdir" ;; + esac + ;; + esac + done + for deplib in $deplibs; do + case $deplib in + -L*) + case " $new_libs " in + *" $deplib "*) ;; + *) func_append new_libs " $deplib" ;; + esac + ;; + *) func_append new_libs " $deplib" ;; + esac + done + deplibs="$new_libs" + + # All the library-specific variables (install_libdir is set above). + library_names= + old_library= + dlname= + + # Test again, we may have decided not to build it any more + if test "$build_libtool_libs" = yes; then + # Remove ${wl} instances when linking with ld. + # FIXME: should test the right _cmds variable. + case $archive_cmds in + *\$LD\ *) wl= ;; + esac + if test "$hardcode_into_libs" = yes; then + # Hardcode the library paths + hardcode_libdirs= + dep_rpath= + rpath="$finalize_rpath" + test "$opt_mode" != relink && rpath="$compile_rpath$rpath" + for libdir in $rpath; do + if test -n "$hardcode_libdir_flag_spec"; then + if test -n "$hardcode_libdir_separator"; then + func_replace_sysroot "$libdir" + libdir=$func_replace_sysroot_result + if test -z "$hardcode_libdirs"; then + hardcode_libdirs="$libdir" + else + # Just accumulate the unique libdirs. + case $hardcode_libdir_separator$hardcode_libdirs$hardcode_libdir_separator in + *"$hardcode_libdir_separator$libdir$hardcode_libdir_separator"*) + ;; + *) + func_append hardcode_libdirs "$hardcode_libdir_separator$libdir" + ;; + esac + fi + else + eval flag=\"$hardcode_libdir_flag_spec\" + func_append dep_rpath " $flag" + fi + elif test -n "$runpath_var"; then + case "$perm_rpath " in + *" $libdir "*) ;; + *) func_append perm_rpath " $libdir" ;; + esac + fi + done + # Substitute the hardcoded libdirs into the rpath. + if test -n "$hardcode_libdir_separator" && + test -n "$hardcode_libdirs"; then + libdir="$hardcode_libdirs" + eval "dep_rpath=\"$hardcode_libdir_flag_spec\"" + fi + if test -n "$runpath_var" && test -n "$perm_rpath"; then + # We should set the runpath_var. + rpath= + for dir in $perm_rpath; do + func_append rpath "$dir:" + done + eval "$runpath_var='$rpath\$$runpath_var'; export $runpath_var" + fi + test -n "$dep_rpath" && deplibs="$dep_rpath $deplibs" + fi + + shlibpath="$finalize_shlibpath" + test "$opt_mode" != relink && shlibpath="$compile_shlibpath$shlibpath" + if test -n "$shlibpath"; then + eval "$shlibpath_var='$shlibpath\$$shlibpath_var'; export $shlibpath_var" + fi + + # Get the real and link names of the library. + eval shared_ext=\"$shrext_cmds\" + eval library_names=\"$library_names_spec\" + set dummy $library_names + shift + realname="$1" + shift + + if test -n "$soname_spec"; then + eval soname=\"$soname_spec\" + else + soname="$realname" + fi + if test -z "$dlname"; then + dlname=$soname + fi + + lib="$output_objdir/$realname" + linknames= + for link + do + func_append linknames " $link" + done + + # Use standard objects if they are pic + test -z "$pic_flag" && libobjs=`$ECHO "$libobjs" | $SP2NL | $SED "$lo2o" | $NL2SP` + test "X$libobjs" = "X " && libobjs= + + delfiles= + if test -n "$export_symbols" && test -n "$include_expsyms"; then + $opt_dry_run || cp "$export_symbols" "$output_objdir/$libname.uexp" + export_symbols="$output_objdir/$libname.uexp" + func_append delfiles " $export_symbols" + fi + + orig_export_symbols= + case $host_os in + cygwin* | mingw* | cegcc*) + if test -n "$export_symbols" && test -z "$export_symbols_regex"; then + # exporting using user supplied symfile + if test "x`$SED 1q $export_symbols`" != xEXPORTS; then + # and it's NOT already a .def file. Must figure out + # which of the given symbols are data symbols and tag + # them as such. So, trigger use of export_symbols_cmds. + # export_symbols gets reassigned inside the "prepare + # the list of exported symbols" if statement, so the + # include_expsyms logic still works. + orig_export_symbols="$export_symbols" + export_symbols= + always_export_symbols=yes + fi + fi + ;; + esac + + # Prepare the list of exported symbols + if test -z "$export_symbols"; then + if test "$always_export_symbols" = yes || test -n "$export_symbols_regex"; then + func_verbose "generating symbol list for \`$libname.la'" + export_symbols="$output_objdir/$libname.exp" + $opt_dry_run || $RM $export_symbols + cmds=$export_symbols_cmds + save_ifs="$IFS"; IFS='~' + for cmd1 in $cmds; do + IFS="$save_ifs" + # Take the normal branch if the nm_file_list_spec branch + # doesn't work or if tool conversion is not needed. + case $nm_file_list_spec~$to_tool_file_cmd in + *~func_convert_file_noop | *~func_convert_file_msys_to_w32 | ~*) + try_normal_branch=yes + eval cmd=\"$cmd1\" + func_len " $cmd" + len=$func_len_result + ;; + *) + try_normal_branch=no + ;; + esac + if test "$try_normal_branch" = yes \ + && { test "$len" -lt "$max_cmd_len" \ + || test "$max_cmd_len" -le -1; } + then + func_show_eval "$cmd" 'exit $?' + skipped_export=false + elif test -n "$nm_file_list_spec"; then + func_basename "$output" + output_la=$func_basename_result + save_libobjs=$libobjs + save_output=$output + output=${output_objdir}/${output_la}.nm + func_to_tool_file "$output" + libobjs=$nm_file_list_spec$func_to_tool_file_result + func_append delfiles " $output" + func_verbose "creating $NM input file list: $output" + for obj in $save_libobjs; do + func_to_tool_file "$obj" + $ECHO "$func_to_tool_file_result" + done > "$output" + eval cmd=\"$cmd1\" + func_show_eval "$cmd" 'exit $?' + output=$save_output + libobjs=$save_libobjs + skipped_export=false + else + # The command line is too long to execute in one step. + func_verbose "using reloadable object file for export list..." + skipped_export=: + # Break out early, otherwise skipped_export may be + # set to false by a later but shorter cmd. + break + fi + done + IFS="$save_ifs" + if test -n "$export_symbols_regex" && test "X$skipped_export" != "X:"; then + func_show_eval '$EGREP -e "$export_symbols_regex" "$export_symbols" > "${export_symbols}T"' + func_show_eval '$MV "${export_symbols}T" "$export_symbols"' + fi + fi + fi + + if test -n "$export_symbols" && test -n "$include_expsyms"; then + tmp_export_symbols="$export_symbols" + test -n "$orig_export_symbols" && tmp_export_symbols="$orig_export_symbols" + $opt_dry_run || eval '$ECHO "$include_expsyms" | $SP2NL >> "$tmp_export_symbols"' + fi + + if test "X$skipped_export" != "X:" && test -n "$orig_export_symbols"; then + # The given exports_symbols file has to be filtered, so filter it. + func_verbose "filter symbol list for \`$libname.la' to tag DATA exports" + # FIXME: $output_objdir/$libname.filter potentially contains lots of + # 's' commands which not all seds can handle. GNU sed should be fine + # though. Also, the filter scales superlinearly with the number of + # global variables. join(1) would be nice here, but unfortunately + # isn't a blessed tool. + $opt_dry_run || $SED -e '/[ ,]DATA/!d;s,\(.*\)\([ \,].*\),s|^\1$|\1\2|,' < $export_symbols > $output_objdir/$libname.filter + func_append delfiles " $export_symbols $output_objdir/$libname.filter" + export_symbols=$output_objdir/$libname.def + $opt_dry_run || $SED -f $output_objdir/$libname.filter < $orig_export_symbols > $export_symbols + fi + + tmp_deplibs= + for test_deplib in $deplibs; do + case " $convenience " in + *" $test_deplib "*) ;; + *) + func_append tmp_deplibs " $test_deplib" + ;; + esac + done + deplibs="$tmp_deplibs" + + if test -n "$convenience"; then + if test -n "$whole_archive_flag_spec" && + test "$compiler_needs_object" = yes && + test -z "$libobjs"; then + # extract the archives, so we have objects to list. + # TODO: could optimize this to just extract one archive. + whole_archive_flag_spec= + fi + if test -n "$whole_archive_flag_spec"; then + save_libobjs=$libobjs + eval libobjs=\"\$libobjs $whole_archive_flag_spec\" + test "X$libobjs" = "X " && libobjs= + else + gentop="$output_objdir/${outputname}x" + func_append generated " $gentop" + + func_extract_archives $gentop $convenience + func_append libobjs " $func_extract_archives_result" + test "X$libobjs" = "X " && libobjs= + fi + fi + + if test "$thread_safe" = yes && test -n "$thread_safe_flag_spec"; then + eval flag=\"$thread_safe_flag_spec\" + func_append linker_flags " $flag" + fi + + # Make a backup of the uninstalled library when relinking + if test "$opt_mode" = relink; then + $opt_dry_run || eval '(cd $output_objdir && $RM ${realname}U && $MV $realname ${realname}U)' || exit $? + fi + + # Do each of the archive commands. + if test "$module" = yes && test -n "$module_cmds" ; then + if test -n "$export_symbols" && test -n "$module_expsym_cmds"; then + eval test_cmds=\"$module_expsym_cmds\" + cmds=$module_expsym_cmds + else + eval test_cmds=\"$module_cmds\" + cmds=$module_cmds + fi + else + if test -n "$export_symbols" && test -n "$archive_expsym_cmds"; then + eval test_cmds=\"$archive_expsym_cmds\" + cmds=$archive_expsym_cmds + else + eval test_cmds=\"$archive_cmds\" + cmds=$archive_cmds + fi + fi + + if test "X$skipped_export" != "X:" && + func_len " $test_cmds" && + len=$func_len_result && + test "$len" -lt "$max_cmd_len" || test "$max_cmd_len" -le -1; then + : + else + # The command line is too long to link in one step, link piecewise + # or, if using GNU ld and skipped_export is not :, use a linker + # script. + + # Save the value of $output and $libobjs because we want to + # use them later. If we have whole_archive_flag_spec, we + # want to use save_libobjs as it was before + # whole_archive_flag_spec was expanded, because we can't + # assume the linker understands whole_archive_flag_spec. + # This may have to be revisited, in case too many + # convenience libraries get linked in and end up exceeding + # the spec. + if test -z "$convenience" || test -z "$whole_archive_flag_spec"; then + save_libobjs=$libobjs + fi + save_output=$output + func_basename "$output" + output_la=$func_basename_result + + # Clear the reloadable object creation command queue and + # initialize k to one. + test_cmds= + concat_cmds= + objlist= + last_robj= + k=1 + + if test -n "$save_libobjs" && test "X$skipped_export" != "X:" && test "$with_gnu_ld" = yes; then + output=${output_objdir}/${output_la}.lnkscript + func_verbose "creating GNU ld script: $output" + echo 'INPUT (' > $output + for obj in $save_libobjs + do + func_to_tool_file "$obj" + $ECHO "$func_to_tool_file_result" >> $output + done + echo ')' >> $output + func_append delfiles " $output" + func_to_tool_file "$output" + output=$func_to_tool_file_result + elif test -n "$save_libobjs" && test "X$skipped_export" != "X:" && test "X$file_list_spec" != X; then + output=${output_objdir}/${output_la}.lnk + func_verbose "creating linker input file list: $output" + : > $output + set x $save_libobjs + shift + firstobj= + if test "$compiler_needs_object" = yes; then + firstobj="$1 " + shift + fi + for obj + do + func_to_tool_file "$obj" + $ECHO "$func_to_tool_file_result" >> $output + done + func_append delfiles " $output" + func_to_tool_file "$output" + output=$firstobj\"$file_list_spec$func_to_tool_file_result\" + else + if test -n "$save_libobjs"; then + func_verbose "creating reloadable object files..." + output=$output_objdir/$output_la-${k}.$objext + eval test_cmds=\"$reload_cmds\" + func_len " $test_cmds" + len0=$func_len_result + len=$len0 + + # Loop over the list of objects to be linked. + for obj in $save_libobjs + do + func_len " $obj" + func_arith $len + $func_len_result + len=$func_arith_result + if test "X$objlist" = X || + test "$len" -lt "$max_cmd_len"; then + func_append objlist " $obj" + else + # The command $test_cmds is almost too long, add a + # command to the queue. + if test "$k" -eq 1 ; then + # The first file doesn't have a previous command to add. + reload_objs=$objlist + eval concat_cmds=\"$reload_cmds\" + else + # All subsequent reloadable object files will link in + # the last one created. + reload_objs="$objlist $last_robj" + eval concat_cmds=\"\$concat_cmds~$reload_cmds~\$RM $last_robj\" + fi + last_robj=$output_objdir/$output_la-${k}.$objext + func_arith $k + 1 + k=$func_arith_result + output=$output_objdir/$output_la-${k}.$objext + objlist=" $obj" + func_len " $last_robj" + func_arith $len0 + $func_len_result + len=$func_arith_result + fi + done + # Handle the remaining objects by creating one last + # reloadable object file. All subsequent reloadable object + # files will link in the last one created. + test -z "$concat_cmds" || concat_cmds=$concat_cmds~ + reload_objs="$objlist $last_robj" + eval concat_cmds=\"\${concat_cmds}$reload_cmds\" + if test -n "$last_robj"; then + eval concat_cmds=\"\${concat_cmds}~\$RM $last_robj\" + fi + func_append delfiles " $output" + + else + output= + fi + + if ${skipped_export-false}; then + func_verbose "generating symbol list for \`$libname.la'" + export_symbols="$output_objdir/$libname.exp" + $opt_dry_run || $RM $export_symbols + libobjs=$output + # Append the command to create the export file. + test -z "$concat_cmds" || concat_cmds=$concat_cmds~ + eval concat_cmds=\"\$concat_cmds$export_symbols_cmds\" + if test -n "$last_robj"; then + eval concat_cmds=\"\$concat_cmds~\$RM $last_robj\" + fi + fi + + test -n "$save_libobjs" && + func_verbose "creating a temporary reloadable object file: $output" + + # Loop through the commands generated above and execute them. + save_ifs="$IFS"; IFS='~' + for cmd in $concat_cmds; do + IFS="$save_ifs" + $opt_silent || { + func_quote_for_expand "$cmd" + eval "func_echo $func_quote_for_expand_result" + } + $opt_dry_run || eval "$cmd" || { + lt_exit=$? + + # Restore the uninstalled library and exit + if test "$opt_mode" = relink; then + ( cd "$output_objdir" && \ + $RM "${realname}T" && \ + $MV "${realname}U" "$realname" ) + fi + + exit $lt_exit + } + done + IFS="$save_ifs" + + if test -n "$export_symbols_regex" && ${skipped_export-false}; then + func_show_eval '$EGREP -e "$export_symbols_regex" "$export_symbols" > "${export_symbols}T"' + func_show_eval '$MV "${export_symbols}T" "$export_symbols"' + fi + fi + + if ${skipped_export-false}; then + if test -n "$export_symbols" && test -n "$include_expsyms"; then + tmp_export_symbols="$export_symbols" + test -n "$orig_export_symbols" && tmp_export_symbols="$orig_export_symbols" + $opt_dry_run || eval '$ECHO "$include_expsyms" | $SP2NL >> "$tmp_export_symbols"' + fi + + if test -n "$orig_export_symbols"; then + # The given exports_symbols file has to be filtered, so filter it. + func_verbose "filter symbol list for \`$libname.la' to tag DATA exports" + # FIXME: $output_objdir/$libname.filter potentially contains lots of + # 's' commands which not all seds can handle. GNU sed should be fine + # though. Also, the filter scales superlinearly with the number of + # global variables. join(1) would be nice here, but unfortunately + # isn't a blessed tool. + $opt_dry_run || $SED -e '/[ ,]DATA/!d;s,\(.*\)\([ \,].*\),s|^\1$|\1\2|,' < $export_symbols > $output_objdir/$libname.filter + func_append delfiles " $export_symbols $output_objdir/$libname.filter" + export_symbols=$output_objdir/$libname.def + $opt_dry_run || $SED -f $output_objdir/$libname.filter < $orig_export_symbols > $export_symbols + fi + fi + + libobjs=$output + # Restore the value of output. + output=$save_output + + if test -n "$convenience" && test -n "$whole_archive_flag_spec"; then + eval libobjs=\"\$libobjs $whole_archive_flag_spec\" + test "X$libobjs" = "X " && libobjs= + fi + # Expand the library linking commands again to reset the + # value of $libobjs for piecewise linking. + + # Do each of the archive commands. + if test "$module" = yes && test -n "$module_cmds" ; then + if test -n "$export_symbols" && test -n "$module_expsym_cmds"; then + cmds=$module_expsym_cmds + else + cmds=$module_cmds + fi + else + if test -n "$export_symbols" && test -n "$archive_expsym_cmds"; then + cmds=$archive_expsym_cmds + else + cmds=$archive_cmds + fi + fi + fi + + if test -n "$delfiles"; then + # Append the command to remove temporary files to $cmds. + eval cmds=\"\$cmds~\$RM $delfiles\" + fi + + # Add any objects from preloaded convenience libraries + if test -n "$dlprefiles"; then + gentop="$output_objdir/${outputname}x" + func_append generated " $gentop" + + func_extract_archives $gentop $dlprefiles + func_append libobjs " $func_extract_archives_result" + test "X$libobjs" = "X " && libobjs= + fi + + save_ifs="$IFS"; IFS='~' + for cmd in $cmds; do + IFS="$save_ifs" + eval cmd=\"$cmd\" + $opt_silent || { + func_quote_for_expand "$cmd" + eval "func_echo $func_quote_for_expand_result" + } + $opt_dry_run || eval "$cmd" || { + lt_exit=$? + + # Restore the uninstalled library and exit + if test "$opt_mode" = relink; then + ( cd "$output_objdir" && \ + $RM "${realname}T" && \ + $MV "${realname}U" "$realname" ) + fi + + exit $lt_exit + } + done + IFS="$save_ifs" + + # Restore the uninstalled library and exit + if test "$opt_mode" = relink; then + $opt_dry_run || eval '(cd $output_objdir && $RM ${realname}T && $MV $realname ${realname}T && $MV ${realname}U $realname)' || exit $? + + if test -n "$convenience"; then + if test -z "$whole_archive_flag_spec"; then + func_show_eval '${RM}r "$gentop"' + fi + fi + + exit $EXIT_SUCCESS + fi + + # Create links to the real library. + for linkname in $linknames; do + if test "$realname" != "$linkname"; then + func_show_eval '(cd "$output_objdir" && $RM "$linkname" && $LN_S "$realname" "$linkname")' 'exit $?' + fi + done + + # If -module or -export-dynamic was specified, set the dlname. + if test "$module" = yes || test "$export_dynamic" = yes; then + # On all known operating systems, these are identical. + dlname="$soname" + fi + fi + ;; + + obj) + if test -n "$dlfiles$dlprefiles" || test "$dlself" != no; then + func_warning "\`-dlopen' is ignored for objects" + fi + + case " $deplibs" in + *\ -l* | *\ -L*) + func_warning "\`-l' and \`-L' are ignored for objects" ;; + esac + + test -n "$rpath" && \ + func_warning "\`-rpath' is ignored for objects" + + test -n "$xrpath" && \ + func_warning "\`-R' is ignored for objects" + + test -n "$vinfo" && \ + func_warning "\`-version-info' is ignored for objects" + + test -n "$release" && \ + func_warning "\`-release' is ignored for objects" + + case $output in + *.lo) + test -n "$objs$old_deplibs" && \ + func_fatal_error "cannot build library object \`$output' from non-libtool objects" + + libobj=$output + func_lo2o "$libobj" + obj=$func_lo2o_result + ;; + *) + libobj= + obj="$output" + ;; + esac + + # Delete the old objects. + $opt_dry_run || $RM $obj $libobj + + # Objects from convenience libraries. This assumes + # single-version convenience libraries. Whenever we create + # different ones for PIC/non-PIC, this we'll have to duplicate + # the extraction. + reload_conv_objs= + gentop= + # reload_cmds runs $LD directly, so let us get rid of + # -Wl from whole_archive_flag_spec and hope we can get by with + # turning comma into space.. + wl= + + if test -n "$convenience"; then + if test -n "$whole_archive_flag_spec"; then + eval tmp_whole_archive_flags=\"$whole_archive_flag_spec\" + reload_conv_objs=$reload_objs\ `$ECHO "$tmp_whole_archive_flags" | $SED 's|,| |g'` + else + gentop="$output_objdir/${obj}x" + func_append generated " $gentop" + + func_extract_archives $gentop $convenience + reload_conv_objs="$reload_objs $func_extract_archives_result" + fi + fi + + # If we're not building shared, we need to use non_pic_objs + test "$build_libtool_libs" != yes && libobjs="$non_pic_objects" + + # Create the old-style object. + reload_objs="$objs$old_deplibs "`$ECHO "$libobjs" | $SP2NL | $SED "/\.${libext}$/d; /\.lib$/d; $lo2o" | $NL2SP`" $reload_conv_objs" ### testsuite: skip nested quoting test + + output="$obj" + func_execute_cmds "$reload_cmds" 'exit $?' + + # Exit if we aren't doing a library object file. + if test -z "$libobj"; then + if test -n "$gentop"; then + func_show_eval '${RM}r "$gentop"' + fi + + exit $EXIT_SUCCESS + fi + + if test "$build_libtool_libs" != yes; then + if test -n "$gentop"; then + func_show_eval '${RM}r "$gentop"' + fi + + # Create an invalid libtool object if no PIC, so that we don't + # accidentally link it into a program. + # $show "echo timestamp > $libobj" + # $opt_dry_run || eval "echo timestamp > $libobj" || exit $? + exit $EXIT_SUCCESS + fi + + if test -n "$pic_flag" || test "$pic_mode" != default; then + # Only do commands if we really have different PIC objects. + reload_objs="$libobjs $reload_conv_objs" + output="$libobj" + func_execute_cmds "$reload_cmds" 'exit $?' + fi + + if test -n "$gentop"; then + func_show_eval '${RM}r "$gentop"' + fi + + exit $EXIT_SUCCESS + ;; + + prog) + case $host in + *cygwin*) func_stripname '' '.exe' "$output" + output=$func_stripname_result.exe;; + esac + test -n "$vinfo" && \ + func_warning "\`-version-info' is ignored for programs" + + test -n "$release" && \ + func_warning "\`-release' is ignored for programs" + + test "$preload" = yes \ + && test "$dlopen_support" = unknown \ + && test "$dlopen_self" = unknown \ + && test "$dlopen_self_static" = unknown && \ + func_warning "\`LT_INIT([dlopen])' not used. Assuming no dlopen support." + + case $host in + *-*-rhapsody* | *-*-darwin1.[012]) + # On Rhapsody replace the C library is the System framework + compile_deplibs=`$ECHO " $compile_deplibs" | $SED 's/ -lc / System.ltframework /'` + finalize_deplibs=`$ECHO " $finalize_deplibs" | $SED 's/ -lc / System.ltframework /'` + ;; + esac + + case $host in + *-*-darwin*) + # Don't allow lazy linking, it breaks C++ global constructors + # But is supposedly fixed on 10.4 or later (yay!). + if test "$tagname" = CXX ; then + case ${MACOSX_DEPLOYMENT_TARGET-10.0} in + 10.[0123]) + func_append compile_command " ${wl}-bind_at_load" + func_append finalize_command " ${wl}-bind_at_load" + ;; + esac + fi + # Time to change all our "foo.ltframework" stuff back to "-framework foo" + compile_deplibs=`$ECHO " $compile_deplibs" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'` + finalize_deplibs=`$ECHO " $finalize_deplibs" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'` + ;; + esac + + + # move library search paths that coincide with paths to not yet + # installed libraries to the beginning of the library search list + new_libs= + for path in $notinst_path; do + case " $new_libs " in + *" -L$path/$objdir "*) ;; + *) + case " $compile_deplibs " in + *" -L$path/$objdir "*) + func_append new_libs " -L$path/$objdir" ;; + esac + ;; + esac + done + for deplib in $compile_deplibs; do + case $deplib in + -L*) + case " $new_libs " in + *" $deplib "*) ;; + *) func_append new_libs " $deplib" ;; + esac + ;; + *) func_append new_libs " $deplib" ;; + esac + done + compile_deplibs="$new_libs" + + + func_append compile_command " $compile_deplibs" + func_append finalize_command " $finalize_deplibs" + + if test -n "$rpath$xrpath"; then + # If the user specified any rpath flags, then add them. + for libdir in $rpath $xrpath; do + # This is the magic to use -rpath. + case "$finalize_rpath " in + *" $libdir "*) ;; + *) func_append finalize_rpath " $libdir" ;; + esac + done + fi + + # Now hardcode the library paths + rpath= + hardcode_libdirs= + for libdir in $compile_rpath $finalize_rpath; do + if test -n "$hardcode_libdir_flag_spec"; then + if test -n "$hardcode_libdir_separator"; then + if test -z "$hardcode_libdirs"; then + hardcode_libdirs="$libdir" + else + # Just accumulate the unique libdirs. + case $hardcode_libdir_separator$hardcode_libdirs$hardcode_libdir_separator in + *"$hardcode_libdir_separator$libdir$hardcode_libdir_separator"*) + ;; + *) + func_append hardcode_libdirs "$hardcode_libdir_separator$libdir" + ;; + esac + fi + else + eval flag=\"$hardcode_libdir_flag_spec\" + func_append rpath " $flag" + fi + elif test -n "$runpath_var"; then + case "$perm_rpath " in + *" $libdir "*) ;; + *) func_append perm_rpath " $libdir" ;; + esac + fi + case $host in + *-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-os2* | *-cegcc*) + testbindir=`${ECHO} "$libdir" | ${SED} -e 's*/lib$*/bin*'` + case :$dllsearchpath: in + *":$libdir:"*) ;; + ::) dllsearchpath=$libdir;; + *) func_append dllsearchpath ":$libdir";; + esac + case :$dllsearchpath: in + *":$testbindir:"*) ;; + ::) dllsearchpath=$testbindir;; + *) func_append dllsearchpath ":$testbindir";; + esac + ;; + esac + done + # Substitute the hardcoded libdirs into the rpath. + if test -n "$hardcode_libdir_separator" && + test -n "$hardcode_libdirs"; then + libdir="$hardcode_libdirs" + eval rpath=\" $hardcode_libdir_flag_spec\" + fi + compile_rpath="$rpath" + + rpath= + hardcode_libdirs= + for libdir in $finalize_rpath; do + if test -n "$hardcode_libdir_flag_spec"; then + if test -n "$hardcode_libdir_separator"; then + if test -z "$hardcode_libdirs"; then + hardcode_libdirs="$libdir" + else + # Just accumulate the unique libdirs. + case $hardcode_libdir_separator$hardcode_libdirs$hardcode_libdir_separator in + *"$hardcode_libdir_separator$libdir$hardcode_libdir_separator"*) + ;; + *) + func_append hardcode_libdirs "$hardcode_libdir_separator$libdir" + ;; + esac + fi + else + eval flag=\"$hardcode_libdir_flag_spec\" + func_append rpath " $flag" + fi + elif test -n "$runpath_var"; then + case "$finalize_perm_rpath " in + *" $libdir "*) ;; + *) func_append finalize_perm_rpath " $libdir" ;; + esac + fi + done + # Substitute the hardcoded libdirs into the rpath. + if test -n "$hardcode_libdir_separator" && + test -n "$hardcode_libdirs"; then + libdir="$hardcode_libdirs" + eval rpath=\" $hardcode_libdir_flag_spec\" + fi + finalize_rpath="$rpath" + + if test -n "$libobjs" && test "$build_old_libs" = yes; then + # Transform all the library objects into standard objects. + compile_command=`$ECHO "$compile_command" | $SP2NL | $SED "$lo2o" | $NL2SP` + finalize_command=`$ECHO "$finalize_command" | $SP2NL | $SED "$lo2o" | $NL2SP` + fi + + func_generate_dlsyms "$outputname" "@PROGRAM@" "no" + + # template prelinking step + if test -n "$prelink_cmds"; then + func_execute_cmds "$prelink_cmds" 'exit $?' + fi + + wrappers_required=yes + case $host in + *cegcc* | *mingw32ce*) + # Disable wrappers for cegcc and mingw32ce hosts, we are cross compiling anyway. + wrappers_required=no + ;; + *cygwin* | *mingw* ) + if test "$build_libtool_libs" != yes; then + wrappers_required=no + fi + ;; + *) + if test "$need_relink" = no || test "$build_libtool_libs" != yes; then + wrappers_required=no + fi + ;; + esac + if test "$wrappers_required" = no; then + # Replace the output file specification. + compile_command=`$ECHO "$compile_command" | $SED 's%@OUTPUT@%'"$output"'%g'` + link_command="$compile_command$compile_rpath" + + # We have no uninstalled library dependencies, so finalize right now. + exit_status=0 + func_show_eval "$link_command" 'exit_status=$?' + + if test -n "$postlink_cmds"; then + func_to_tool_file "$output" + postlink_cmds=`func_echo_all "$postlink_cmds" | $SED -e 's%@OUTPUT@%'"$output"'%g' -e 's%@TOOL_OUTPUT@%'"$func_to_tool_file_result"'%g'` + func_execute_cmds "$postlink_cmds" 'exit $?' + fi + + # Delete the generated files. + if test -f "$output_objdir/${outputname}S.${objext}"; then + func_show_eval '$RM "$output_objdir/${outputname}S.${objext}"' + fi + + exit $exit_status + fi + + if test -n "$compile_shlibpath$finalize_shlibpath"; then + compile_command="$shlibpath_var=\"$compile_shlibpath$finalize_shlibpath\$$shlibpath_var\" $compile_command" + fi + if test -n "$finalize_shlibpath"; then + finalize_command="$shlibpath_var=\"$finalize_shlibpath\$$shlibpath_var\" $finalize_command" + fi + + compile_var= + finalize_var= + if test -n "$runpath_var"; then + if test -n "$perm_rpath"; then + # We should set the runpath_var. + rpath= + for dir in $perm_rpath; do + func_append rpath "$dir:" + done + compile_var="$runpath_var=\"$rpath\$$runpath_var\" " + fi + if test -n "$finalize_perm_rpath"; then + # We should set the runpath_var. + rpath= + for dir in $finalize_perm_rpath; do + func_append rpath "$dir:" + done + finalize_var="$runpath_var=\"$rpath\$$runpath_var\" " + fi + fi + + if test "$no_install" = yes; then + # We don't need to create a wrapper script. + link_command="$compile_var$compile_command$compile_rpath" + # Replace the output file specification. + link_command=`$ECHO "$link_command" | $SED 's%@OUTPUT@%'"$output"'%g'` + # Delete the old output file. + $opt_dry_run || $RM $output + # Link the executable and exit + func_show_eval "$link_command" 'exit $?' + + if test -n "$postlink_cmds"; then + func_to_tool_file "$output" + postlink_cmds=`func_echo_all "$postlink_cmds" | $SED -e 's%@OUTPUT@%'"$output"'%g' -e 's%@TOOL_OUTPUT@%'"$func_to_tool_file_result"'%g'` + func_execute_cmds "$postlink_cmds" 'exit $?' + fi + + exit $EXIT_SUCCESS + fi + + if test "$hardcode_action" = relink; then + # Fast installation is not supported + link_command="$compile_var$compile_command$compile_rpath" + relink_command="$finalize_var$finalize_command$finalize_rpath" + + func_warning "this platform does not like uninstalled shared libraries" + func_warning "\`$output' will be relinked during installation" + else + if test "$fast_install" != no; then + link_command="$finalize_var$compile_command$finalize_rpath" + if test "$fast_install" = yes; then + relink_command=`$ECHO "$compile_var$compile_command$compile_rpath" | $SED 's%@OUTPUT@%\$progdir/\$file%g'` + else + # fast_install is set to needless + relink_command= + fi + else + link_command="$compile_var$compile_command$compile_rpath" + relink_command="$finalize_var$finalize_command$finalize_rpath" + fi + fi + + # Replace the output file specification. + link_command=`$ECHO "$link_command" | $SED 's%@OUTPUT@%'"$output_objdir/$outputname"'%g'` + + # Delete the old output files. + $opt_dry_run || $RM $output $output_objdir/$outputname $output_objdir/lt-$outputname + + func_show_eval "$link_command" 'exit $?' + + if test -n "$postlink_cmds"; then + func_to_tool_file "$output_objdir/$outputname" + postlink_cmds=`func_echo_all "$postlink_cmds" | $SED -e 's%@OUTPUT@%'"$output_objdir/$outputname"'%g' -e 's%@TOOL_OUTPUT@%'"$func_to_tool_file_result"'%g'` + func_execute_cmds "$postlink_cmds" 'exit $?' + fi + + # Now create the wrapper script. + func_verbose "creating $output" + + # Quote the relink command for shipping. + if test -n "$relink_command"; then + # Preserve any variables that may affect compiler behavior + for var in $variables_saved_for_relink; do + if eval test -z \"\${$var+set}\"; then + relink_command="{ test -z \"\${$var+set}\" || $lt_unset $var || { $var=; export $var; }; }; $relink_command" + elif eval var_value=\$$var; test -z "$var_value"; then + relink_command="$var=; export $var; $relink_command" + else + func_quote_for_eval "$var_value" + relink_command="$var=$func_quote_for_eval_result; export $var; $relink_command" + fi + done + relink_command="(cd `pwd`; $relink_command)" + relink_command=`$ECHO "$relink_command" | $SED "$sed_quote_subst"` + fi + + # Only actually do things if not in dry run mode. + $opt_dry_run || { + # win32 will think the script is a binary if it has + # a .exe suffix, so we strip it off here. + case $output in + *.exe) func_stripname '' '.exe' "$output" + output=$func_stripname_result ;; + esac + # test for cygwin because mv fails w/o .exe extensions + case $host in + *cygwin*) + exeext=.exe + func_stripname '' '.exe' "$outputname" + outputname=$func_stripname_result ;; + *) exeext= ;; + esac + case $host in + *cygwin* | *mingw* ) + func_dirname_and_basename "$output" "" "." + output_name=$func_basename_result + output_path=$func_dirname_result + cwrappersource="$output_path/$objdir/lt-$output_name.c" + cwrapper="$output_path/$output_name.exe" + $RM $cwrappersource $cwrapper + trap "$RM $cwrappersource $cwrapper; exit $EXIT_FAILURE" 1 2 15 + + func_emit_cwrapperexe_src > $cwrappersource + + # The wrapper executable is built using the $host compiler, + # because it contains $host paths and files. If cross- + # compiling, it, like the target executable, must be + # executed on the $host or under an emulation environment. + $opt_dry_run || { + $LTCC $LTCFLAGS -o $cwrapper $cwrappersource + $STRIP $cwrapper + } + + # Now, create the wrapper script for func_source use: + func_ltwrapper_scriptname $cwrapper + $RM $func_ltwrapper_scriptname_result + trap "$RM $func_ltwrapper_scriptname_result; exit $EXIT_FAILURE" 1 2 15 + $opt_dry_run || { + # note: this script will not be executed, so do not chmod. + if test "x$build" = "x$host" ; then + $cwrapper --lt-dump-script > $func_ltwrapper_scriptname_result + else + func_emit_wrapper no > $func_ltwrapper_scriptname_result + fi + } + ;; + * ) + $RM $output + trap "$RM $output; exit $EXIT_FAILURE" 1 2 15 + + func_emit_wrapper no > $output + chmod +x $output + ;; + esac + } + exit $EXIT_SUCCESS + ;; + esac + + # See if we need to build an old-fashioned archive. + for oldlib in $oldlibs; do + + if test "$build_libtool_libs" = convenience; then + oldobjs="$libobjs_save $symfileobj" + addlibs="$convenience" + build_libtool_libs=no + else + if test "$build_libtool_libs" = module; then + oldobjs="$libobjs_save" + build_libtool_libs=no + else + oldobjs="$old_deplibs $non_pic_objects" + if test "$preload" = yes && test -f "$symfileobj"; then + func_append oldobjs " $symfileobj" + fi + fi + addlibs="$old_convenience" + fi + + if test -n "$addlibs"; then + gentop="$output_objdir/${outputname}x" + func_append generated " $gentop" + + func_extract_archives $gentop $addlibs + func_append oldobjs " $func_extract_archives_result" + fi + + # Do each command in the archive commands. + if test -n "$old_archive_from_new_cmds" && test "$build_libtool_libs" = yes; then + cmds=$old_archive_from_new_cmds + else + + # Add any objects from preloaded convenience libraries + if test -n "$dlprefiles"; then + gentop="$output_objdir/${outputname}x" + func_append generated " $gentop" + + func_extract_archives $gentop $dlprefiles + func_append oldobjs " $func_extract_archives_result" + fi + + # POSIX demands no paths to be encoded in archives. We have + # to avoid creating archives with duplicate basenames if we + # might have to extract them afterwards, e.g., when creating a + # static archive out of a convenience library, or when linking + # the entirety of a libtool archive into another (currently + # not supported by libtool). + if (for obj in $oldobjs + do + func_basename "$obj" + $ECHO "$func_basename_result" + done | sort | sort -uc >/dev/null 2>&1); then + : + else + echo "copying selected object files to avoid basename conflicts..." + gentop="$output_objdir/${outputname}x" + func_append generated " $gentop" + func_mkdir_p "$gentop" + save_oldobjs=$oldobjs + oldobjs= + counter=1 + for obj in $save_oldobjs + do + func_basename "$obj" + objbase="$func_basename_result" + case " $oldobjs " in + " ") oldobjs=$obj ;; + *[\ /]"$objbase "*) + while :; do + # Make sure we don't pick an alternate name that also + # overlaps. + newobj=lt$counter-$objbase + func_arith $counter + 1 + counter=$func_arith_result + case " $oldobjs " in + *[\ /]"$newobj "*) ;; + *) if test ! -f "$gentop/$newobj"; then break; fi ;; + esac + done + func_show_eval "ln $obj $gentop/$newobj || cp $obj $gentop/$newobj" + func_append oldobjs " $gentop/$newobj" + ;; + *) func_append oldobjs " $obj" ;; + esac + done + fi + func_to_tool_file "$oldlib" func_convert_file_msys_to_w32 + tool_oldlib=$func_to_tool_file_result + eval cmds=\"$old_archive_cmds\" + + func_len " $cmds" + len=$func_len_result + if test "$len" -lt "$max_cmd_len" || test "$max_cmd_len" -le -1; then + cmds=$old_archive_cmds + elif test -n "$archiver_list_spec"; then + func_verbose "using command file archive linking..." + for obj in $oldobjs + do + func_to_tool_file "$obj" + $ECHO "$func_to_tool_file_result" + done > $output_objdir/$libname.libcmd + func_to_tool_file "$output_objdir/$libname.libcmd" + oldobjs=" $archiver_list_spec$func_to_tool_file_result" + cmds=$old_archive_cmds + else + # the command line is too long to link in one step, link in parts + func_verbose "using piecewise archive linking..." + save_RANLIB=$RANLIB + RANLIB=: + objlist= + concat_cmds= + save_oldobjs=$oldobjs + oldobjs= + # Is there a better way of finding the last object in the list? + for obj in $save_oldobjs + do + last_oldobj=$obj + done + eval test_cmds=\"$old_archive_cmds\" + func_len " $test_cmds" + len0=$func_len_result + len=$len0 + for obj in $save_oldobjs + do + func_len " $obj" + func_arith $len + $func_len_result + len=$func_arith_result + func_append objlist " $obj" + if test "$len" -lt "$max_cmd_len"; then + : + else + # the above command should be used before it gets too long + oldobjs=$objlist + if test "$obj" = "$last_oldobj" ; then + RANLIB=$save_RANLIB + fi + test -z "$concat_cmds" || concat_cmds=$concat_cmds~ + eval concat_cmds=\"\${concat_cmds}$old_archive_cmds\" + objlist= + len=$len0 + fi + done + RANLIB=$save_RANLIB + oldobjs=$objlist + if test "X$oldobjs" = "X" ; then + eval cmds=\"\$concat_cmds\" + else + eval cmds=\"\$concat_cmds~\$old_archive_cmds\" + fi + fi + fi + func_execute_cmds "$cmds" 'exit $?' + done + + test -n "$generated" && \ + func_show_eval "${RM}r$generated" + + # Now create the libtool archive. + case $output in + *.la) + old_library= + test "$build_old_libs" = yes && old_library="$libname.$libext" + func_verbose "creating $output" + + # Preserve any variables that may affect compiler behavior + for var in $variables_saved_for_relink; do + if eval test -z \"\${$var+set}\"; then + relink_command="{ test -z \"\${$var+set}\" || $lt_unset $var || { $var=; export $var; }; }; $relink_command" + elif eval var_value=\$$var; test -z "$var_value"; then + relink_command="$var=; export $var; $relink_command" + else + func_quote_for_eval "$var_value" + relink_command="$var=$func_quote_for_eval_result; export $var; $relink_command" + fi + done + # Quote the link command for shipping. + relink_command="(cd `pwd`; $SHELL $progpath $preserve_args --mode=relink $libtool_args @inst_prefix_dir@)" + relink_command=`$ECHO "$relink_command" | $SED "$sed_quote_subst"` + if test "$hardcode_automatic" = yes ; then + relink_command= + fi + + # Only create the output if not a dry run. + $opt_dry_run || { + for installed in no yes; do + if test "$installed" = yes; then + if test -z "$install_libdir"; then + break + fi + output="$output_objdir/$outputname"i + # Replace all uninstalled libtool libraries with the installed ones + newdependency_libs= + for deplib in $dependency_libs; do + case $deplib in + *.la) + func_basename "$deplib" + name="$func_basename_result" + func_resolve_sysroot "$deplib" + eval libdir=`${SED} -n -e 's/^libdir=\(.*\)$/\1/p' $func_resolve_sysroot_result` + test -z "$libdir" && \ + func_fatal_error "\`$deplib' is not a valid libtool archive" + func_append newdependency_libs " ${lt_sysroot:+=}$libdir/$name" + ;; + -L*) + func_stripname -L '' "$deplib" + func_replace_sysroot "$func_stripname_result" + func_append newdependency_libs " -L$func_replace_sysroot_result" + ;; + -R*) + func_stripname -R '' "$deplib" + func_replace_sysroot "$func_stripname_result" + func_append newdependency_libs " -R$func_replace_sysroot_result" + ;; + *) func_append newdependency_libs " $deplib" ;; + esac + done + dependency_libs="$newdependency_libs" + newdlfiles= + + for lib in $dlfiles; do + case $lib in + *.la) + func_basename "$lib" + name="$func_basename_result" + eval libdir=`${SED} -n -e 's/^libdir=\(.*\)$/\1/p' $lib` + test -z "$libdir" && \ + func_fatal_error "\`$lib' is not a valid libtool archive" + func_append newdlfiles " ${lt_sysroot:+=}$libdir/$name" + ;; + *) func_append newdlfiles " $lib" ;; + esac + done + dlfiles="$newdlfiles" + newdlprefiles= + for lib in $dlprefiles; do + case $lib in + *.la) + # Only pass preopened files to the pseudo-archive (for + # eventual linking with the app. that links it) if we + # didn't already link the preopened objects directly into + # the library: + func_basename "$lib" + name="$func_basename_result" + eval libdir=`${SED} -n -e 's/^libdir=\(.*\)$/\1/p' $lib` + test -z "$libdir" && \ + func_fatal_error "\`$lib' is not a valid libtool archive" + func_append newdlprefiles " ${lt_sysroot:+=}$libdir/$name" + ;; + esac + done + dlprefiles="$newdlprefiles" + else + newdlfiles= + for lib in $dlfiles; do + case $lib in + [\\/]* | [A-Za-z]:[\\/]*) abs="$lib" ;; + *) abs=`pwd`"/$lib" ;; + esac + func_append newdlfiles " $abs" + done + dlfiles="$newdlfiles" + newdlprefiles= + for lib in $dlprefiles; do + case $lib in + [\\/]* | [A-Za-z]:[\\/]*) abs="$lib" ;; + *) abs=`pwd`"/$lib" ;; + esac + func_append newdlprefiles " $abs" + done + dlprefiles="$newdlprefiles" + fi + $RM $output + # place dlname in correct position for cygwin + # In fact, it would be nice if we could use this code for all target + # systems that can't hard-code library paths into their executables + # and that have no shared library path variable independent of PATH, + # but it turns out we can't easily determine that from inspecting + # libtool variables, so we have to hard-code the OSs to which it + # applies here; at the moment, that means platforms that use the PE + # object format with DLL files. See the long comment at the top of + # tests/bindir.at for full details. + tdlname=$dlname + case $host,$output,$installed,$module,$dlname in + *cygwin*,*lai,yes,no,*.dll | *mingw*,*lai,yes,no,*.dll | *cegcc*,*lai,yes,no,*.dll) + # If a -bindir argument was supplied, place the dll there. + if test "x$bindir" != x ; + then + func_relative_path "$install_libdir" "$bindir" + tdlname=$func_relative_path_result$dlname + else + # Otherwise fall back on heuristic. + tdlname=../bin/$dlname + fi + ;; + esac + $ECHO > $output "\ +# $outputname - a libtool library file +# Generated by $PROGRAM (GNU $PACKAGE$TIMESTAMP) $VERSION +# +# Please DO NOT delete this file! +# It is necessary for linking the library. + +# The name that we can dlopen(3). +dlname='$tdlname' + +# Names of this library. +library_names='$library_names' + +# The name of the static archive. +old_library='$old_library' + +# Linker flags that can not go in dependency_libs. +inherited_linker_flags='$new_inherited_linker_flags' + +# Libraries that this one depends upon. +dependency_libs='$dependency_libs' + +# Names of additional weak libraries provided by this library +weak_library_names='$weak_libs' + +# Version information for $libname. +current=$current +age=$age +revision=$revision + +# Is this an already installed library? +installed=$installed + +# Should we warn about portability when linking against -modules? +shouldnotlink=$module + +# Files to dlopen/dlpreopen +dlopen='$dlfiles' +dlpreopen='$dlprefiles' + +# Directory that this library needs to be installed in: +libdir='$install_libdir'" + if test "$installed" = no && test "$need_relink" = yes; then + $ECHO >> $output "\ +relink_command=\"$relink_command\"" + fi + done + } + + # Do a symbolic link so that the libtool archive can be found in + # LD_LIBRARY_PATH before the program is installed. + func_show_eval '( cd "$output_objdir" && $RM "$outputname" && $LN_S "../$outputname" "$outputname" )' 'exit $?' + ;; + esac + exit $EXIT_SUCCESS +} + +{ test "$opt_mode" = link || test "$opt_mode" = relink; } && + func_mode_link ${1+"$@"} + + +# func_mode_uninstall arg... +func_mode_uninstall () +{ + $opt_debug + RM="$nonopt" + files= + rmforce= + exit_status=0 + + # This variable tells wrapper scripts just to set variables rather + # than running their programs. + libtool_install_magic="$magic" + + for arg + do + case $arg in + -f) func_append RM " $arg"; rmforce=yes ;; + -*) func_append RM " $arg" ;; + *) func_append files " $arg" ;; + esac + done + + test -z "$RM" && \ + func_fatal_help "you must specify an RM program" + + rmdirs= + + for file in $files; do + func_dirname "$file" "" "." + dir="$func_dirname_result" + if test "X$dir" = X.; then + odir="$objdir" + else + odir="$dir/$objdir" + fi + func_basename "$file" + name="$func_basename_result" + test "$opt_mode" = uninstall && odir="$dir" + + # Remember odir for removal later, being careful to avoid duplicates + if test "$opt_mode" = clean; then + case " $rmdirs " in + *" $odir "*) ;; + *) func_append rmdirs " $odir" ;; + esac + fi + + # Don't error if the file doesn't exist and rm -f was used. + if { test -L "$file"; } >/dev/null 2>&1 || + { test -h "$file"; } >/dev/null 2>&1 || + test -f "$file"; then + : + elif test -d "$file"; then + exit_status=1 + continue + elif test "$rmforce" = yes; then + continue + fi + + rmfiles="$file" + + case $name in + *.la) + # Possibly a libtool archive, so verify it. + if func_lalib_p "$file"; then + func_source $dir/$name + + # Delete the libtool libraries and symlinks. + for n in $library_names; do + func_append rmfiles " $odir/$n" + done + test -n "$old_library" && func_append rmfiles " $odir/$old_library" + + case "$opt_mode" in + clean) + case " $library_names " in + *" $dlname "*) ;; + *) test -n "$dlname" && func_append rmfiles " $odir/$dlname" ;; + esac + test -n "$libdir" && func_append rmfiles " $odir/$name $odir/${name}i" + ;; + uninstall) + if test -n "$library_names"; then + # Do each command in the postuninstall commands. + func_execute_cmds "$postuninstall_cmds" 'test "$rmforce" = yes || exit_status=1' + fi + + if test -n "$old_library"; then + # Do each command in the old_postuninstall commands. + func_execute_cmds "$old_postuninstall_cmds" 'test "$rmforce" = yes || exit_status=1' + fi + # FIXME: should reinstall the best remaining shared library. + ;; + esac + fi + ;; + + *.lo) + # Possibly a libtool object, so verify it. + if func_lalib_p "$file"; then + + # Read the .lo file + func_source $dir/$name + + # Add PIC object to the list of files to remove. + if test -n "$pic_object" && + test "$pic_object" != none; then + func_append rmfiles " $dir/$pic_object" + fi + + # Add non-PIC object to the list of files to remove. + if test -n "$non_pic_object" && + test "$non_pic_object" != none; then + func_append rmfiles " $dir/$non_pic_object" + fi + fi + ;; + + *) + if test "$opt_mode" = clean ; then + noexename=$name + case $file in + *.exe) + func_stripname '' '.exe' "$file" + file=$func_stripname_result + func_stripname '' '.exe' "$name" + noexename=$func_stripname_result + # $file with .exe has already been added to rmfiles, + # add $file without .exe + func_append rmfiles " $file" + ;; + esac + # Do a test to see if this is a libtool program. + if func_ltwrapper_p "$file"; then + if func_ltwrapper_executable_p "$file"; then + func_ltwrapper_scriptname "$file" + relink_command= + func_source $func_ltwrapper_scriptname_result + func_append rmfiles " $func_ltwrapper_scriptname_result" + else + relink_command= + func_source $dir/$noexename + fi + + # note $name still contains .exe if it was in $file originally + # as does the version of $file that was added into $rmfiles + func_append rmfiles " $odir/$name $odir/${name}S.${objext}" + if test "$fast_install" = yes && test -n "$relink_command"; then + func_append rmfiles " $odir/lt-$name" + fi + if test "X$noexename" != "X$name" ; then + func_append rmfiles " $odir/lt-${noexename}.c" + fi + fi + fi + ;; + esac + func_show_eval "$RM $rmfiles" 'exit_status=1' + done + + # Try to remove the ${objdir}s in the directories where we deleted files + for dir in $rmdirs; do + if test -d "$dir"; then + func_show_eval "rmdir $dir >/dev/null 2>&1" + fi + done + + exit $exit_status +} + +{ test "$opt_mode" = uninstall || test "$opt_mode" = clean; } && + func_mode_uninstall ${1+"$@"} + +test -z "$opt_mode" && { + help="$generic_help" + func_fatal_help "you must specify a MODE" +} + +test -z "$exec_cmd" && \ + func_fatal_help "invalid operation mode \`$opt_mode'" + +if test -n "$exec_cmd"; then + eval exec "$exec_cmd" + exit $EXIT_FAILURE +fi + +exit $exit_status + + +# The TAGs below are defined such that we never get into a situation +# in which we disable both kinds of libraries. Given conflicting +# choices, we go for a static library, that is the most portable, +# since we can't tell whether shared libraries were disabled because +# the user asked for that or because the platform doesn't support +# them. This is particularly important on AIX, because we don't +# support having both static and shared libraries enabled at the same +# time on that platform, so we default to a shared-only configuration. +# If a disable-shared tag is given, we'll fallback to a static-only +# configuration. But we'll never go from static-only to shared-only. + +# ### BEGIN LIBTOOL TAG CONFIG: disable-shared +build_libtool_libs=no +build_old_libs=yes +# ### END LIBTOOL TAG CONFIG: disable-shared + +# ### BEGIN LIBTOOL TAG CONFIG: disable-static +build_old_libs=`case $build_libtool_libs in yes) echo no;; *) echo yes;; esac` +# ### END LIBTOOL TAG CONFIG: disable-static + +# Local Variables: +# mode:shell-script +# sh-indentation:2 +# End: +# vi:sw=2 + diff --git a/jpeg/makcjpeg.st b/jpeg/makcjpeg.st new file mode 100644 index 0000000..628f533 --- /dev/null +++ b/jpeg/makcjpeg.st @@ -0,0 +1,36 @@ +; Project file for Independent JPEG Group's software +; +; This project file is for Atari ST/STE/TT systems using Pure C or Turbo C. +; Thanks to Frank Moehle, B. Setzepfandt, and Guido Vollbeding. +; +; To use this file, rename it to cjpeg.prj. +; If you are using Turbo C, change filenames beginning with "pc..." to "tc..." +; Read installation instructions before trying to make the program! +; +; +; * * * Output file * * * +cjpeg.ttp +; +; * * * COMPILER OPTIONS * * * +.C[-P] ; absolute calls +.C[-M] ; and no string merging, folks +.C[-w-cln] ; no "constant is long" warnings +.C[-w-par] ; no "parameter xxxx unused" +.C[-w-rch] ; no "unreachable code" +.C[-wsig] ; warn if significant digits may be lost += +; * * * * List of modules * * * * +pcstart.o +cjpeg.c (cdjpeg.h,jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jerror.h,cderror.h,jversion.h) +cdjpeg.c (cdjpeg.h,jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jerror.h,cderror.h) +rdswitch.c (cdjpeg.h,jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jerror.h,cderror.h) +rdppm.c (cdjpeg.h,jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jerror.h,cderror.h) +rdgif.c (cdjpeg.h,jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jerror.h,cderror.h) +rdtarga.c (cdjpeg.h,jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jerror.h,cderror.h) +rdbmp.c (cdjpeg.h,jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jerror.h,cderror.h) +rdrle.c (cdjpeg.h,jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jerror.h,cderror.h) +libjpeg.lib ; built by libjpeg.prj +pcfltlib.lib ; floating point library +; the float library can be omitted if you've turned off DCT_FLOAT_SUPPORTED +pcstdlib.lib ; standard library +pcextlib.lib ; extended library diff --git a/jpeg/makdjpeg.st b/jpeg/makdjpeg.st new file mode 100644 index 0000000..4b61404 --- /dev/null +++ b/jpeg/makdjpeg.st @@ -0,0 +1,36 @@ +; Project file for Independent JPEG Group's software +; +; This project file is for Atari ST/STE/TT systems using Pure C or Turbo C. +; Thanks to Frank Moehle, B. Setzepfandt, and Guido Vollbeding. +; +; To use this file, rename it to djpeg.prj. +; If you are using Turbo C, change filenames beginning with "pc..." to "tc..." +; Read installation instructions before trying to make the program! +; +; +; * * * Output file * * * +djpeg.ttp +; +; * * * COMPILER OPTIONS * * * +.C[-P] ; absolute calls +.C[-M] ; and no string merging, folks +.C[-w-cln] ; no "constant is long" warnings +.C[-w-par] ; no "parameter xxxx unused" +.C[-w-rch] ; no "unreachable code" +.C[-wsig] ; warn if significant digits may be lost += +; * * * * List of modules * * * * +pcstart.o +djpeg.c (cdjpeg.h,jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jerror.h,cderror.h,jversion.h) +cdjpeg.c (cdjpeg.h,jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jerror.h,cderror.h) +rdcolmap.c (cdjpeg.h,jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jerror.h,cderror.h) +wrppm.c (cdjpeg.h,jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jerror.h,cderror.h) +wrgif.c (cdjpeg.h,jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jerror.h,cderror.h) +wrtarga.c (cdjpeg.h,jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jerror.h,cderror.h) +wrbmp.c (cdjpeg.h,jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jerror.h,cderror.h) +wrrle.c (cdjpeg.h,jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jerror.h,cderror.h) +libjpeg.lib ; built by libjpeg.prj +pcfltlib.lib ; floating point library +; the float library can be omitted if you've turned off DCT_FLOAT_SUPPORTED +pcstdlib.lib ; standard library +pcextlib.lib ; extended library diff --git a/jpeg/makeadsw.vc6 b/jpeg/makeadsw.vc6 new file mode 100644 index 0000000..b44838f --- /dev/null +++ b/jpeg/makeadsw.vc6 @@ -0,0 +1,77 @@ +Microsoft Developer Studio Workspace File, Format Version 6.00 +# WARNUNG: DIESE ARBEITSBEREICHSDATEI DARF NICHT BEARBEITET ODER GELÖSCHT WERDEN! + +############################################################################### + +Project: "cjpeg"=".\cjpeg.dsp" - Package Owner=<4> + +Package=<5> +{{{ +}}} + +Package=<4> +{{{ +}}} + +############################################################################### + +Project: "djpeg"=".\djpeg.dsp" - Package Owner=<4> + +Package=<5> +{{{ +}}} + +Package=<4> +{{{ +}}} + +############################################################################### + +Project: "jpegtran"=".\jpegtran.dsp" - Package Owner=<4> + +Package=<5> +{{{ +}}} + +Package=<4> +{{{ +}}} + +############################################################################### + +Project: "rdjpgcom"=".\rdjpgcom.dsp" - Package Owner=<4> + +Package=<5> +{{{ +}}} + +Package=<4> +{{{ +}}} + +############################################################################### + +Project: "wrjpgcom"=".\wrjpgcom.dsp" - Package Owner=<4> + +Package=<5> +{{{ +}}} + +Package=<4> +{{{ +}}} + +############################################################################### + +Global: + +Package=<5> +{{{ +}}} + +Package=<3> +{{{ +}}} + +############################################################################### + diff --git a/jpeg/makeasln.v10 b/jpeg/makeasln.v10 new file mode 100644 index 0000000..ab96a9f --- /dev/null +++ b/jpeg/makeasln.v10 @@ -0,0 +1,33 @@ + +Microsoft Visual Studio Solution File, Format Version 11.00 +# Visual C++ Express 2010 +Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "cjpeg", "cjpeg.vcxproj", "{2E7FAAD9-2F58-4BDE-81F2-1D6D3FB8BF57}" +EndProject +Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "djpeg", "djpeg.vcxproj", "{11043137-B453-4DFA-9010-4D2B9DC1545C}" +EndProject +Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "jpegtran", "jpegtran.vcxproj", "{025BAC50-51B5-4FFE-BC47-3F920BB4047E}" +EndProject +Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "rdjpgcom", "rdjpgcom.vcxproj", "{C81513DB-78DC-46BC-BC98-82E745203976}" +EndProject +Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "wrjpgcom", "wrjpgcom.vcxproj", "{B57065D4-DDDA-4668-BAF5-2D49270C973C}" +EndProject +Global + GlobalSection(SolutionConfigurationPlatforms) = preSolution + Release|Win32 = Release|Win32 + EndGlobalSection + GlobalSection(ProjectConfigurationPlatforms) = postSolution + {2E7FAAD9-2F58-4BDE-81F2-1D6D3FB8BF57}.Release|Win32.ActiveCfg = Release|Win32 + {2E7FAAD9-2F58-4BDE-81F2-1D6D3FB8BF57}.Release|Win32.Build.0 = Release|Win32 + {11043137-B453-4DFA-9010-4D2B9DC1545C}.Release|Win32.ActiveCfg = Release|Win32 + {11043137-B453-4DFA-9010-4D2B9DC1545C}.Release|Win32.Build.0 = Release|Win32 + {025BAC50-51B5-4FFE-BC47-3F920BB4047E}.Release|Win32.ActiveCfg = Release|Win32 + {025BAC50-51B5-4FFE-BC47-3F920BB4047E}.Release|Win32.Build.0 = Release|Win32 + {C81513DB-78DC-46BC-BC98-82E745203976}.Release|Win32.ActiveCfg = Release|Win32 + {C81513DB-78DC-46BC-BC98-82E745203976}.Release|Win32.Build.0 = Release|Win32 + {B57065D4-DDDA-4668-BAF5-2D49270C973C}.Release|Win32.ActiveCfg = Release|Win32 + {B57065D4-DDDA-4668-BAF5-2D49270C973C}.Release|Win32.Build.0 = Release|Win32 + EndGlobalSection + GlobalSection(SolutionProperties) = preSolution + HideSolutionNode = FALSE + EndGlobalSection +EndGlobal diff --git a/jpeg/makecdep.vc6 b/jpeg/makecdep.vc6 new file mode 100644 index 0000000..32443db --- /dev/null +++ b/jpeg/makecdep.vc6 @@ -0,0 +1,82 @@ +# Microsoft Developer Studio erstellte Abhängigkeitsdatei, einbezogen von cjpeg.mak + +.\cdjpeg.c : \ + ".\cderror.h"\ + ".\cdjpeg.h"\ + ".\jconfig.h"\ + ".\jerror.h"\ + ".\jinclude.h"\ + ".\jmorecfg.h"\ + ".\jpeglib.h"\ + + +.\cjpeg.c : \ + ".\cderror.h"\ + ".\cdjpeg.h"\ + ".\jconfig.h"\ + ".\jerror.h"\ + ".\jinclude.h"\ + ".\jmorecfg.h"\ + ".\jpeglib.h"\ + ".\jversion.h"\ + + +.\rdbmp.c : \ + ".\cderror.h"\ + ".\cdjpeg.h"\ + ".\jconfig.h"\ + ".\jerror.h"\ + ".\jinclude.h"\ + ".\jmorecfg.h"\ + ".\jpeglib.h"\ + + +.\rdgif.c : \ + ".\cderror.h"\ + ".\cdjpeg.h"\ + ".\jconfig.h"\ + ".\jerror.h"\ + ".\jinclude.h"\ + ".\jmorecfg.h"\ + ".\jpeglib.h"\ + + +.\rdppm.c : \ + ".\cderror.h"\ + ".\cdjpeg.h"\ + ".\jconfig.h"\ + ".\jerror.h"\ + ".\jinclude.h"\ + ".\jmorecfg.h"\ + ".\jpeglib.h"\ + + +.\rdrle.c : \ + ".\cderror.h"\ + ".\cdjpeg.h"\ + ".\jconfig.h"\ + ".\jerror.h"\ + ".\jinclude.h"\ + ".\jmorecfg.h"\ + ".\jpeglib.h"\ + + +.\rdswitch.c : \ + ".\cderror.h"\ + ".\cdjpeg.h"\ + ".\jconfig.h"\ + ".\jerror.h"\ + ".\jinclude.h"\ + ".\jmorecfg.h"\ + ".\jpeglib.h"\ + + +.\rdtarga.c : \ + ".\cderror.h"\ + ".\cdjpeg.h"\ + ".\jconfig.h"\ + ".\jerror.h"\ + ".\jinclude.h"\ + ".\jmorecfg.h"\ + ".\jpeglib.h"\ + diff --git a/jpeg/makecdsp.vc6 b/jpeg/makecdsp.vc6 new file mode 100644 index 0000000..2cc2f8a --- /dev/null +++ b/jpeg/makecdsp.vc6 @@ -0,0 +1,130 @@ +# Microsoft Developer Studio Project File - Name="cjpeg" - Package Owner=<4> +# Microsoft Developer Studio Generated Build File, Format Version 6.00 +# ** NICHT BEARBEITEN ** + +# TARGTYPE "Win32 (x86) Console Application" 0x0103 + +CFG=cjpeg - Win32 +!MESSAGE Dies ist kein gültiges Makefile. Zum Erstellen dieses Projekts mit NMAKE +!MESSAGE verwenden Sie den Befehl "Makefile exportieren" und führen Sie den Befehl +!MESSAGE +!MESSAGE NMAKE /f "cjpeg.mak". +!MESSAGE +!MESSAGE Sie können beim Ausführen von NMAKE eine Konfiguration angeben +!MESSAGE durch Definieren des Makros CFG in der Befehlszeile. Zum Beispiel: +!MESSAGE +!MESSAGE NMAKE /f "cjpeg.mak" CFG="cjpeg - Win32" +!MESSAGE +!MESSAGE Für die Konfiguration stehen zur Auswahl: +!MESSAGE +!MESSAGE "cjpeg - Win32" (basierend auf "Win32 (x86) Console Application") +!MESSAGE + +# Begin Project +# PROP AllowPerConfigDependencies 0 +# PROP Scc_ProjName "" +# PROP Scc_LocalPath "" +CPP=cl.exe +RSC=rc.exe +# PROP BASE Use_MFC 0 +# PROP BASE Use_Debug_Libraries 0 +# PROP BASE Output_Dir ".\cjpeg\Release" +# PROP BASE Intermediate_Dir ".\cjpeg\Release" +# PROP BASE Target_Dir ".\cjpeg" +# PROP Use_MFC 0 +# PROP Use_Debug_Libraries 0 +# PROP Output_Dir ".\cjpeg\Release" +# PROP Intermediate_Dir ".\cjpeg\Release" +# PROP Ignore_Export_Lib 0 +# PROP Target_Dir ".\cjpeg" +# ADD BASE CPP /nologo /W3 /GX /O2 /D "WIN32" /D "NDEBUG" /D "_CONSOLE" /YX /c +# ADD CPP /nologo /G6 /MT /W3 /GX /Ox /Oa /Ob2 /D "WIN32" /D "NDEBUG" /D "_CONSOLE" /YX /FD /c +# ADD BASE RSC /l 0x409 /d "NDEBUG" +# ADD RSC /l 0x409 /d "NDEBUG" +BSC32=bscmake.exe +# ADD BASE BSC32 /nologo +# ADD BSC32 /nologo +LINK32=link.exe +# ADD BASE LINK32 kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib /nologo /subsystem:console /machine:I386 +# ADD LINK32 Release\jpeg.lib kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib /nologo /subsystem:console /machine:I386 +# Begin Target + +# Name "cjpeg - Win32" +# Begin Group "Quellcodedateien" + +# PROP Default_Filter "cpp;c;cxx;rc;def;r;odl;idl;hpj;bat;for;f90" +# Begin Source File + +SOURCE=.\cdjpeg.c +# End Source File +# Begin Source File + +SOURCE=.\cjpeg.c +# End Source File +# Begin Source File + +SOURCE=.\rdbmp.c +# End Source File +# Begin Source File + +SOURCE=.\rdgif.c +# End Source File +# Begin Source File + +SOURCE=.\rdppm.c +# End Source File +# Begin Source File + +SOURCE=.\rdrle.c +# End Source File +# Begin Source File + +SOURCE=.\rdswitch.c +# End Source File +# Begin Source File + +SOURCE=.\rdtarga.c +# End Source File +# End Group +# Begin Group "Header-Dateien" + +# PROP Default_Filter "h;hpp;hxx;hm;inl;fi;fd" +# Begin Source File + +SOURCE=.\cderror.h +# End Source File +# Begin Source File + +SOURCE=.\cdjpeg.h +# End Source File +# Begin Source File + +SOURCE=.\jconfig.h +# End Source File +# Begin Source File + +SOURCE=.\jerror.h +# End Source File +# Begin Source File + +SOURCE=.\jinclude.h +# End Source File +# Begin Source File + +SOURCE=.\jmorecfg.h +# End Source File +# Begin Source File + +SOURCE=.\jpeglib.h +# End Source File +# Begin Source File + +SOURCE=.\jversion.h +# End Source File +# End Group +# Begin Group "Ressourcendateien" + +# PROP Default_Filter "ico;cur;bmp;dlg;rc2;rct;bin;cnt;rtf;gif;jpg;jpeg;jpe" +# End Group +# End Target +# End Project diff --git a/jpeg/makecfil.v10 b/jpeg/makecfil.v10 new file mode 100644 index 0000000..d16cb2c --- /dev/null +++ b/jpeg/makecfil.v10 @@ -0,0 +1,69 @@ + + + + + {4FC737F1-C7A5-4376-A066-2A32D752A2FF} + cpp;c;cc;cxx;def;odl;idl;hpj;bat;asm;asmx + + + {93995380-89BD-4b04-88EB-625FBE52EBFB} + h;hpp;hxx;hm;inl;inc;xsd + + + {67DA6AB6-F800-4c08-8B7A-83BB121AAD01} + rc;ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe;resx;tiff;tif;png;wav;mfcribbon-ms + + + + + Header Files + + + Header Files + + + Header Files + + + Header Files + + + Header Files + + + Header Files + + + Header Files + + + Header Files + + + + + Source Files + + + Source Files + + + Source Files + + + Source Files + + + Source Files + + + Source Files + + + Source Files + + + Source Files + + + \ No newline at end of file diff --git a/jpeg/makecmak.vc6 b/jpeg/makecmak.vc6 new file mode 100644 index 0000000..74a230e --- /dev/null +++ b/jpeg/makecmak.vc6 @@ -0,0 +1,159 @@ +# Microsoft Developer Studio Generated NMAKE File, Based on cjpeg.dsp +!IF "$(CFG)" == "" +CFG=cjpeg - Win32 +!MESSAGE Keine Konfiguration angegeben. cjpeg - Win32 wird als Standard verwendet. +!ENDIF + +!IF "$(CFG)" != "cjpeg - Win32" +!MESSAGE Ungltige Konfiguration "$(CFG)" angegeben. +!MESSAGE Sie k”nnen beim Ausfhren von NMAKE eine Konfiguration angeben +!MESSAGE durch Definieren des Makros CFG in der Befehlszeile. Zum Beispiel: +!MESSAGE +!MESSAGE NMAKE /f "cjpeg.mak" CFG="cjpeg - Win32" +!MESSAGE +!MESSAGE Fr die Konfiguration stehen zur Auswahl: +!MESSAGE +!MESSAGE "cjpeg - Win32" (basierend auf "Win32 (x86) Console Application") +!MESSAGE +!ERROR Eine ungltige Konfiguration wurde angegeben. +!ENDIF + +!IF "$(OS)" == "Windows_NT" +NULL= +!ELSE +NULL=nul +!ENDIF + +CPP=cl.exe +RSC=rc.exe +OUTDIR=.\cjpeg\Release +INTDIR=.\cjpeg\Release +# Begin Custom Macros +OutDir=.\cjpeg\Release +# End Custom Macros + +ALL : "$(OUTDIR)\cjpeg.exe" + + +CLEAN : + -@erase "$(INTDIR)\cdjpeg.obj" + -@erase "$(INTDIR)\cjpeg.obj" + -@erase "$(INTDIR)\rdbmp.obj" + -@erase "$(INTDIR)\rdgif.obj" + -@erase "$(INTDIR)\rdppm.obj" + -@erase "$(INTDIR)\rdrle.obj" + -@erase "$(INTDIR)\rdswitch.obj" + -@erase "$(INTDIR)\rdtarga.obj" + -@erase "$(INTDIR)\vc60.idb" + -@erase "$(OUTDIR)\cjpeg.exe" + +"$(OUTDIR)" : + if not exist "$(OUTDIR)/$(NULL)" mkdir "$(OUTDIR)" + +BSC32=bscmake.exe +BSC32_FLAGS=/nologo /o"$(OUTDIR)\cjpeg.bsc" +BSC32_SBRS= \ + +LINK32=link.exe +LINK32_FLAGS=Release\jpeg.lib kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib /nologo /subsystem:console /incremental:no /pdb:"$(OUTDIR)\cjpeg.pdb" /machine:I386 /out:"$(OUTDIR)\cjpeg.exe" +LINK32_OBJS= \ + "$(INTDIR)\cdjpeg.obj" \ + "$(INTDIR)\cjpeg.obj" \ + "$(INTDIR)\rdbmp.obj" \ + "$(INTDIR)\rdgif.obj" \ + "$(INTDIR)\rdppm.obj" \ + "$(INTDIR)\rdrle.obj" \ + "$(INTDIR)\rdswitch.obj" \ + "$(INTDIR)\rdtarga.obj" + +"$(OUTDIR)\cjpeg.exe" : "$(OUTDIR)" $(DEF_FILE) $(LINK32_OBJS) + $(LINK32) @<< + $(LINK32_FLAGS) $(LINK32_OBJS) +<< + +CPP_PROJ=/nologo /G6 /MT /W3 /GX /Ox /Oa /Ob2 /D "WIN32" /D "NDEBUG" /D "_CONSOLE" /Fp"$(INTDIR)\cjpeg.pch" /YX /Fo"$(INTDIR)\\" /Fd"$(INTDIR)\\" /FD /c + +.c{$(INTDIR)}.obj:: + $(CPP) @<< + $(CPP_PROJ) $< +<< + +.cpp{$(INTDIR)}.obj:: + $(CPP) @<< + $(CPP_PROJ) $< +<< + +.cxx{$(INTDIR)}.obj:: + $(CPP) @<< + $(CPP_PROJ) $< +<< + +.c{$(INTDIR)}.sbr:: + $(CPP) @<< + $(CPP_PROJ) $< +<< + +.cpp{$(INTDIR)}.sbr:: + $(CPP) @<< + $(CPP_PROJ) $< +<< + +.cxx{$(INTDIR)}.sbr:: + $(CPP) @<< + $(CPP_PROJ) $< +<< + + +!IF "$(NO_EXTERNAL_DEPS)" != "1" +!IF EXISTS("cjpeg.dep") +!INCLUDE "cjpeg.dep" +!ELSE +!MESSAGE Warning: cannot find "cjpeg.dep" +!ENDIF +!ENDIF + + +!IF "$(CFG)" == "cjpeg - Win32" +SOURCE=.\cdjpeg.c + +"$(INTDIR)\cdjpeg.obj" : $(SOURCE) "$(INTDIR)" + + +SOURCE=.\cjpeg.c + +"$(INTDIR)\cjpeg.obj" : $(SOURCE) "$(INTDIR)" + + +SOURCE=.\rdbmp.c + +"$(INTDIR)\rdbmp.obj" : $(SOURCE) "$(INTDIR)" + + +SOURCE=.\rdgif.c + +"$(INTDIR)\rdgif.obj" : $(SOURCE) "$(INTDIR)" + + +SOURCE=.\rdppm.c + +"$(INTDIR)\rdppm.obj" : $(SOURCE) "$(INTDIR)" + + +SOURCE=.\rdrle.c + +"$(INTDIR)\rdrle.obj" : $(SOURCE) "$(INTDIR)" + + +SOURCE=.\rdswitch.c + +"$(INTDIR)\rdswitch.obj" : $(SOURCE) "$(INTDIR)" + + +SOURCE=.\rdtarga.c + +"$(INTDIR)\rdtarga.obj" : $(SOURCE) "$(INTDIR)" + + + +!ENDIF + diff --git a/jpeg/makecvcx.v10 b/jpeg/makecvcx.v10 new file mode 100644 index 0000000..ed1ceef --- /dev/null +++ b/jpeg/makecvcx.v10 @@ -0,0 +1,76 @@ + + + + + Release + Win32 + + + + {2E7FAAD9-2F58-4BDE-81F2-1D6D3FB8BF57} + Win32Proj + cjpeg + + + + Application + false + true + Unicode + + + + + + + + + + false + $(ProjectName)\$(Configuration)\ + $(ProjectName)\$(Configuration)\ + + + + Level3 + NotUsing + Full + true + false + WIN32;NDEBUG;_CONSOLE;_CRT_SECURE_NO_WARNINGS + true + true + 4996 + + + Console + true + true + true + Release\jpeg.lib;kernel32.lib;user32.lib;gdi32.lib;winspool.lib;comdlg32.lib;advapi32.lib;shell32.lib;ole32.lib;oleaut32.lib;uuid.lib;odbc32.lib;odbccp32.lib;%(AdditionalDependencies) + + + + + + + + + + + + + + + + + + + + + + + + + + \ No newline at end of file diff --git a/jpeg/makeddep.vc6 b/jpeg/makeddep.vc6 new file mode 100644 index 0000000..4d2b3ad --- /dev/null +++ b/jpeg/makeddep.vc6 @@ -0,0 +1,82 @@ +# Microsoft Developer Studio erstellte Abhängigkeitsdatei, einbezogen von djpeg.mak + +.\cdjpeg.c : \ + ".\cderror.h"\ + ".\cdjpeg.h"\ + ".\jconfig.h"\ + ".\jerror.h"\ + ".\jinclude.h"\ + ".\jmorecfg.h"\ + ".\jpeglib.h"\ + + +.\djpeg.c : \ + ".\cderror.h"\ + ".\cdjpeg.h"\ + ".\jconfig.h"\ + ".\jerror.h"\ + ".\jinclude.h"\ + ".\jmorecfg.h"\ + ".\jpeglib.h"\ + ".\jversion.h"\ + + +.\rdcolmap.c : \ + ".\cderror.h"\ + ".\cdjpeg.h"\ + ".\jconfig.h"\ + ".\jerror.h"\ + ".\jinclude.h"\ + ".\jmorecfg.h"\ + ".\jpeglib.h"\ + + +.\wrbmp.c : \ + ".\cderror.h"\ + ".\cdjpeg.h"\ + ".\jconfig.h"\ + ".\jerror.h"\ + ".\jinclude.h"\ + ".\jmorecfg.h"\ + ".\jpeglib.h"\ + + +.\wrgif.c : \ + ".\cderror.h"\ + ".\cdjpeg.h"\ + ".\jconfig.h"\ + ".\jerror.h"\ + ".\jinclude.h"\ + ".\jmorecfg.h"\ + ".\jpeglib.h"\ + + +.\wrppm.c : \ + ".\cderror.h"\ + ".\cdjpeg.h"\ + ".\jconfig.h"\ + ".\jerror.h"\ + ".\jinclude.h"\ + ".\jmorecfg.h"\ + ".\jpeglib.h"\ + + +.\wrrle.c : \ + ".\cderror.h"\ + ".\cdjpeg.h"\ + ".\jconfig.h"\ + ".\jerror.h"\ + ".\jinclude.h"\ + ".\jmorecfg.h"\ + ".\jpeglib.h"\ + + +.\wrtarga.c : \ + ".\cderror.h"\ + ".\cdjpeg.h"\ + ".\jconfig.h"\ + ".\jerror.h"\ + ".\jinclude.h"\ + ".\jmorecfg.h"\ + ".\jpeglib.h"\ + diff --git a/jpeg/makeddsp.vc6 b/jpeg/makeddsp.vc6 new file mode 100644 index 0000000..252f8c7 --- /dev/null +++ b/jpeg/makeddsp.vc6 @@ -0,0 +1,130 @@ +# Microsoft Developer Studio Project File - Name="djpeg" - Package Owner=<4> +# Microsoft Developer Studio Generated Build File, Format Version 6.00 +# ** NICHT BEARBEITEN ** + +# TARGTYPE "Win32 (x86) Console Application" 0x0103 + +CFG=djpeg - Win32 +!MESSAGE Dies ist kein gültiges Makefile. Zum Erstellen dieses Projekts mit NMAKE +!MESSAGE verwenden Sie den Befehl "Makefile exportieren" und führen Sie den Befehl +!MESSAGE +!MESSAGE NMAKE /f "djpeg.mak". +!MESSAGE +!MESSAGE Sie können beim Ausführen von NMAKE eine Konfiguration angeben +!MESSAGE durch Definieren des Makros CFG in der Befehlszeile. Zum Beispiel: +!MESSAGE +!MESSAGE NMAKE /f "djpeg.mak" CFG="djpeg - Win32" +!MESSAGE +!MESSAGE Für die Konfiguration stehen zur Auswahl: +!MESSAGE +!MESSAGE "djpeg - Win32" (basierend auf "Win32 (x86) Console Application") +!MESSAGE + +# Begin Project +# PROP AllowPerConfigDependencies 0 +# PROP Scc_ProjName "" +# PROP Scc_LocalPath "" +CPP=cl.exe +RSC=rc.exe +# PROP BASE Use_MFC 0 +# PROP BASE Use_Debug_Libraries 0 +# PROP BASE Output_Dir ".\djpeg\Release" +# PROP BASE Intermediate_Dir ".\djpeg\Release" +# PROP BASE Target_Dir ".\djpeg" +# PROP Use_MFC 0 +# PROP Use_Debug_Libraries 0 +# PROP Output_Dir ".\djpeg\Release" +# PROP Intermediate_Dir ".\djpeg\Release" +# PROP Ignore_Export_Lib 0 +# PROP Target_Dir ".\djpeg" +# ADD BASE CPP /nologo /W3 /GX /O2 /D "WIN32" /D "NDEBUG" /D "_CONSOLE" /YX /c +# ADD CPP /nologo /G6 /MT /W3 /GX /Ox /Oa /Ob2 /D "WIN32" /D "NDEBUG" /D "_CONSOLE" /YX /FD /c +# ADD BASE RSC /l 0x409 /d "NDEBUG" +# ADD RSC /l 0x409 /d "NDEBUG" +BSC32=bscmake.exe +# ADD BASE BSC32 /nologo +# ADD BSC32 /nologo +LINK32=link.exe +# ADD BASE LINK32 kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib /nologo /subsystem:console /machine:I386 +# ADD LINK32 Release\jpeg.lib kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib /nologo /subsystem:console /machine:I386 +# Begin Target + +# Name "djpeg - Win32" +# Begin Group "Quellcodedateien" + +# PROP Default_Filter "cpp;c;cxx;rc;def;r;odl;idl;hpj;bat;for;f90" +# Begin Source File + +SOURCE=.\cdjpeg.c +# End Source File +# Begin Source File + +SOURCE=.\djpeg.c +# End Source File +# Begin Source File + +SOURCE=.\rdcolmap.c +# End Source File +# Begin Source File + +SOURCE=.\wrbmp.c +# End Source File +# Begin Source File + +SOURCE=.\wrgif.c +# End Source File +# Begin Source File + +SOURCE=.\wrppm.c +# End Source File +# Begin Source File + +SOURCE=.\wrrle.c +# End Source File +# Begin Source File + +SOURCE=.\wrtarga.c +# End Source File +# End Group +# Begin Group "Header-Dateien" + +# PROP Default_Filter "h;hpp;hxx;hm;inl;fi;fd" +# Begin Source File + +SOURCE=.\cderror.h +# End Source File +# Begin Source File + +SOURCE=.\cdjpeg.h +# End Source File +# Begin Source File + +SOURCE=.\jconfig.h +# End Source File +# Begin Source File + +SOURCE=.\jerror.h +# End Source File +# Begin Source File + +SOURCE=.\jinclude.h +# End Source File +# Begin Source File + +SOURCE=.\jmorecfg.h +# End Source File +# Begin Source File + +SOURCE=.\jpeglib.h +# End Source File +# Begin Source File + +SOURCE=.\jversion.h +# End Source File +# End Group +# Begin Group "Ressourcendateien" + +# PROP Default_Filter "ico;cur;bmp;dlg;rc2;rct;bin;cnt;rtf;gif;jpg;jpeg;jpe" +# End Group +# End Target +# End Project diff --git a/jpeg/makedfil.v10 b/jpeg/makedfil.v10 new file mode 100644 index 0000000..92f321c --- /dev/null +++ b/jpeg/makedfil.v10 @@ -0,0 +1,69 @@ + + + + + {4FC737F1-C7A5-4376-A066-2A32D752A2FF} + cpp;c;cc;cxx;def;odl;idl;hpj;bat;asm;asmx + + + {93995380-89BD-4b04-88EB-625FBE52EBFB} + h;hpp;hxx;hm;inl;inc;xsd + + + {67DA6AB6-F800-4c08-8B7A-83BB121AAD01} + rc;ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe;resx;tiff;tif;png;wav;mfcribbon-ms + + + + + Header Files + + + Header Files + + + Header Files + + + Header Files + + + Header Files + + + Header Files + + + Header Files + + + Header Files + + + + + Source Files + + + Source Files + + + Source Files + + + Source Files + + + Source Files + + + Source Files + + + Source Files + + + Source Files + + + \ No newline at end of file diff --git a/jpeg/makedmak.vc6 b/jpeg/makedmak.vc6 new file mode 100644 index 0000000..5d7e778 --- /dev/null +++ b/jpeg/makedmak.vc6 @@ -0,0 +1,159 @@ +# Microsoft Developer Studio Generated NMAKE File, Based on djpeg.dsp +!IF "$(CFG)" == "" +CFG=djpeg - Win32 +!MESSAGE Keine Konfiguration angegeben. djpeg - Win32 wird als Standard verwendet. +!ENDIF + +!IF "$(CFG)" != "djpeg - Win32" +!MESSAGE Ungltige Konfiguration "$(CFG)" angegeben. +!MESSAGE Sie k”nnen beim Ausfhren von NMAKE eine Konfiguration angeben +!MESSAGE durch Definieren des Makros CFG in der Befehlszeile. Zum Beispiel: +!MESSAGE +!MESSAGE NMAKE /f "djpeg.mak" CFG="djpeg - Win32" +!MESSAGE +!MESSAGE Fr die Konfiguration stehen zur Auswahl: +!MESSAGE +!MESSAGE "djpeg - Win32" (basierend auf "Win32 (x86) Console Application") +!MESSAGE +!ERROR Eine ungltige Konfiguration wurde angegeben. +!ENDIF + +!IF "$(OS)" == "Windows_NT" +NULL= +!ELSE +NULL=nul +!ENDIF + +CPP=cl.exe +RSC=rc.exe +OUTDIR=.\djpeg\Release +INTDIR=.\djpeg\Release +# Begin Custom Macros +OutDir=.\djpeg\Release +# End Custom Macros + +ALL : "$(OUTDIR)\djpeg.exe" + + +CLEAN : + -@erase "$(INTDIR)\cdjpeg.obj" + -@erase "$(INTDIR)\djpeg.obj" + -@erase "$(INTDIR)\rdcolmap.obj" + -@erase "$(INTDIR)\vc60.idb" + -@erase "$(INTDIR)\wrbmp.obj" + -@erase "$(INTDIR)\wrgif.obj" + -@erase "$(INTDIR)\wrppm.obj" + -@erase "$(INTDIR)\wrrle.obj" + -@erase "$(INTDIR)\wrtarga.obj" + -@erase "$(OUTDIR)\djpeg.exe" + +"$(OUTDIR)" : + if not exist "$(OUTDIR)/$(NULL)" mkdir "$(OUTDIR)" + +BSC32=bscmake.exe +BSC32_FLAGS=/nologo /o"$(OUTDIR)\djpeg.bsc" +BSC32_SBRS= \ + +LINK32=link.exe +LINK32_FLAGS=Release\jpeg.lib kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib /nologo /subsystem:console /incremental:no /pdb:"$(OUTDIR)\djpeg.pdb" /machine:I386 /out:"$(OUTDIR)\djpeg.exe" +LINK32_OBJS= \ + "$(INTDIR)\cdjpeg.obj" \ + "$(INTDIR)\djpeg.obj" \ + "$(INTDIR)\rdcolmap.obj" \ + "$(INTDIR)\wrbmp.obj" \ + "$(INTDIR)\wrgif.obj" \ + "$(INTDIR)\wrppm.obj" \ + "$(INTDIR)\wrrle.obj" \ + "$(INTDIR)\wrtarga.obj" + +"$(OUTDIR)\djpeg.exe" : "$(OUTDIR)" $(DEF_FILE) $(LINK32_OBJS) + $(LINK32) @<< + $(LINK32_FLAGS) $(LINK32_OBJS) +<< + +CPP_PROJ=/nologo /G6 /MT /W3 /GX /Ox /Oa /Ob2 /D "WIN32" /D "NDEBUG" /D "_CONSOLE" /Fp"$(INTDIR)\djpeg.pch" /YX /Fo"$(INTDIR)\\" /Fd"$(INTDIR)\\" /FD /c + +.c{$(INTDIR)}.obj:: + $(CPP) @<< + $(CPP_PROJ) $< +<< + +.cpp{$(INTDIR)}.obj:: + $(CPP) @<< + $(CPP_PROJ) $< +<< + +.cxx{$(INTDIR)}.obj:: + $(CPP) @<< + $(CPP_PROJ) $< +<< + +.c{$(INTDIR)}.sbr:: + $(CPP) @<< + $(CPP_PROJ) $< +<< + +.cpp{$(INTDIR)}.sbr:: + $(CPP) @<< + $(CPP_PROJ) $< +<< + +.cxx{$(INTDIR)}.sbr:: + $(CPP) @<< + $(CPP_PROJ) $< +<< + + +!IF "$(NO_EXTERNAL_DEPS)" != "1" +!IF EXISTS("djpeg.dep") +!INCLUDE "djpeg.dep" +!ELSE +!MESSAGE Warning: cannot find "djpeg.dep" +!ENDIF +!ENDIF + + +!IF "$(CFG)" == "djpeg - Win32" +SOURCE=.\cdjpeg.c + +"$(INTDIR)\cdjpeg.obj" : $(SOURCE) "$(INTDIR)" + + +SOURCE=.\djpeg.c + +"$(INTDIR)\djpeg.obj" : $(SOURCE) "$(INTDIR)" + + +SOURCE=.\rdcolmap.c + +"$(INTDIR)\rdcolmap.obj" : $(SOURCE) "$(INTDIR)" + + +SOURCE=.\wrbmp.c + +"$(INTDIR)\wrbmp.obj" : $(SOURCE) "$(INTDIR)" + + +SOURCE=.\wrgif.c + +"$(INTDIR)\wrgif.obj" : $(SOURCE) "$(INTDIR)" + + +SOURCE=.\wrppm.c + +"$(INTDIR)\wrppm.obj" : $(SOURCE) "$(INTDIR)" + + +SOURCE=.\wrrle.c + +"$(INTDIR)\wrrle.obj" : $(SOURCE) "$(INTDIR)" + + +SOURCE=.\wrtarga.c + +"$(INTDIR)\wrtarga.obj" : $(SOURCE) "$(INTDIR)" + + + +!ENDIF + diff --git a/jpeg/makedvcx.v10 b/jpeg/makedvcx.v10 new file mode 100644 index 0000000..d3e4cbf --- /dev/null +++ b/jpeg/makedvcx.v10 @@ -0,0 +1,76 @@ + + + + + Release + Win32 + + + + {11043137-B453-4DFA-9010-4D2B9DC1545C} + Win32Proj + djpeg + + + + Application + false + true + Unicode + + + + + + + + + + false + $(ProjectName)\$(Configuration)\ + $(ProjectName)\$(Configuration)\ + + + + Level3 + NotUsing + Full + true + false + WIN32;NDEBUG;_CONSOLE;_CRT_SECURE_NO_WARNINGS + true + true + 4996 + + + Console + true + true + true + Release\jpeg.lib;kernel32.lib;user32.lib;gdi32.lib;winspool.lib;comdlg32.lib;advapi32.lib;shell32.lib;ole32.lib;oleaut32.lib;uuid.lib;odbc32.lib;odbccp32.lib;%(AdditionalDependencies) + + + + + + + + + + + + + + + + + + + + + + + + + + \ No newline at end of file diff --git a/jpeg/makefile.ansi b/jpeg/makefile.ansi new file mode 100644 index 0000000..7d0499f --- /dev/null +++ b/jpeg/makefile.ansi @@ -0,0 +1,221 @@ +# Makefile for Independent JPEG Group's software + +# This makefile is suitable for Unix-like systems with ANSI-capable compilers. +# If you have a non-ANSI compiler, makefile.unix is a better starting point. + +# Read installation instructions before saying "make" !! + +# The name of your C compiler: +CC= cc + +# You may need to adjust these cc options: +CFLAGS= -O +# Generally, we recommend defining any configuration symbols in jconfig.h, +# NOT via -D switches here. + +# Link-time cc options: +LDFLAGS= + +# To link any special libraries, add the necessary -l commands here. +LDLIBS= + +# Put here the object file name for the correct system-dependent memory +# manager file. For Unix this is usually jmemnobs.o, but you may want +# to use jmemansi.o or jmemname.o if you have limited swap space. +SYSDEPMEM= jmemnobs.o + +# miscellaneous OS-dependent stuff +# linker +LN= $(CC) +# file deletion command +RM= rm -f +# library (.a) file creation command +AR= ar rc +# second step in .a creation (use "touch" if not needed) +AR2= ranlib + +# End of configurable options. + + +# source files: JPEG library proper +LIBSOURCES= jaricom.c jcapimin.c jcapistd.c jcarith.c jccoefct.c jccolor.c \ + jcdctmgr.c jchuff.c jcinit.c jcmainct.c jcmarker.c jcmaster.c \ + jcomapi.c jcparam.c jcprepct.c jcsample.c jctrans.c jdapimin.c \ + jdapistd.c jdarith.c jdatadst.c jdatasrc.c jdcoefct.c jdcolor.c \ + jddctmgr.c jdhuff.c jdinput.c jdmainct.c jdmarker.c jdmaster.c \ + jdmerge.c jdpostct.c jdsample.c jdtrans.c jerror.c jfdctflt.c \ + jfdctfst.c jfdctint.c jidctflt.c jidctfst.c jidctint.c jquant1.c \ + jquant2.c jutils.c jmemmgr.c +# memmgr back ends: compile only one of these into a working library +SYSDEPSOURCES= jmemansi.c jmemname.c jmemnobs.c jmemdos.c jmemmac.c +# source files: cjpeg/djpeg/jpegtran applications, also rdjpgcom/wrjpgcom +APPSOURCES= cjpeg.c djpeg.c jpegtran.c rdjpgcom.c wrjpgcom.c cdjpeg.c \ + rdcolmap.c rdswitch.c transupp.c rdppm.c wrppm.c rdgif.c wrgif.c \ + rdtarga.c wrtarga.c rdbmp.c wrbmp.c rdrle.c wrrle.c +SOURCES= $(LIBSOURCES) $(SYSDEPSOURCES) $(APPSOURCES) +# files included by source files +INCLUDES= jdct.h jerror.h jinclude.h jmemsys.h jmorecfg.h jpegint.h \ + jpeglib.h jversion.h cdjpeg.h cderror.h transupp.h +# documentation, test, and support files +DOCS= README install.txt usage.txt cjpeg.1 djpeg.1 jpegtran.1 rdjpgcom.1 \ + wrjpgcom.1 wizard.txt example.c libjpeg.txt structure.txt \ + coderules.txt filelist.txt change.log +MKFILES= configure Makefile.in makefile.ansi makefile.unix makefile.bcc \ + makefile.mc6 makefile.dj makefile.wat makefile.vc makejdsw.vc6 \ + makeadsw.vc6 makejdep.vc6 makejdsp.vc6 makejmak.vc6 makecdep.vc6 \ + makecdsp.vc6 makecmak.vc6 makeddep.vc6 makeddsp.vc6 makedmak.vc6 \ + maketdep.vc6 maketdsp.vc6 maketmak.vc6 makerdep.vc6 makerdsp.vc6 \ + makermak.vc6 makewdep.vc6 makewdsp.vc6 makewmak.vc6 makejsln.v10 \ + makeasln.v10 makejvcx.v10 makejfil.v10 makecvcx.v10 makecfil.v10 \ + makedvcx.v10 makedfil.v10 maketvcx.v10 maketfil.v10 makervcx.v10 \ + makerfil.v10 makewvcx.v10 makewfil.v10 makeproj.mac makcjpeg.st \ + makdjpeg.st makljpeg.st maktjpeg.st makefile.manx makefile.sas \ + makefile.mms makefile.vms makvms.opt +CONFIGFILES= jconfig.cfg jconfig.bcc jconfig.mc6 jconfig.dj jconfig.wat \ + jconfig.vc jconfig.mac jconfig.st jconfig.manx jconfig.sas \ + jconfig.vms +CONFIGUREFILES= config.guess config.sub install-sh ltmain.sh depcomp missing +OTHERFILES= jconfig.txt ckconfig.c ansi2knr.c ansi2knr.1 jmemdosa.asm \ + libjpeg.map +TESTFILES= testorig.jpg testimg.ppm testimg.bmp testimg.jpg testprog.jpg \ + testimgp.jpg +DISTFILES= $(DOCS) $(MKFILES) $(CONFIGFILES) $(SOURCES) $(INCLUDES) \ + $(CONFIGUREFILES) $(OTHERFILES) $(TESTFILES) +# library object files common to compression and decompression +COMOBJECTS= jaricom.o jcomapi.o jutils.o jerror.o jmemmgr.o $(SYSDEPMEM) +# compression library object files +CLIBOBJECTS= jcapimin.o jcapistd.o jcarith.o jctrans.o jcparam.o \ + jdatadst.o jcinit.o jcmaster.o jcmarker.o jcmainct.o jcprepct.o \ + jccoefct.o jccolor.o jcsample.o jchuff.o jcdctmgr.o jfdctfst.o \ + jfdctflt.o jfdctint.o +# decompression library object files +DLIBOBJECTS= jdapimin.o jdapistd.o jdarith.o jdtrans.o jdatasrc.o \ + jdmaster.o jdinput.o jdmarker.o jdhuff.o jdmainct.o \ + jdcoefct.o jdpostct.o jddctmgr.o jidctfst.o jidctflt.o \ + jidctint.o jdsample.o jdcolor.o jquant1.o jquant2.o jdmerge.o +# These objectfiles are included in libjpeg.a +LIBOBJECTS= $(CLIBOBJECTS) $(DLIBOBJECTS) $(COMOBJECTS) +# object files for sample applications (excluding library files) +COBJECTS= cjpeg.o rdppm.o rdgif.o rdtarga.o rdrle.o rdbmp.o rdswitch.o \ + cdjpeg.o +DOBJECTS= djpeg.o wrppm.o wrgif.o wrtarga.o wrrle.o wrbmp.o rdcolmap.o \ + cdjpeg.o +TROBJECTS= jpegtran.o rdswitch.o cdjpeg.o transupp.o + + +all: libjpeg.a cjpeg djpeg jpegtran rdjpgcom wrjpgcom + +libjpeg.a: $(LIBOBJECTS) + $(RM) libjpeg.a + $(AR) libjpeg.a $(LIBOBJECTS) + $(AR2) libjpeg.a + +cjpeg: $(COBJECTS) libjpeg.a + $(LN) $(LDFLAGS) -o cjpeg $(COBJECTS) libjpeg.a $(LDLIBS) + +djpeg: $(DOBJECTS) libjpeg.a + $(LN) $(LDFLAGS) -o djpeg $(DOBJECTS) libjpeg.a $(LDLIBS) + +jpegtran: $(TROBJECTS) libjpeg.a + $(LN) $(LDFLAGS) -o jpegtran $(TROBJECTS) libjpeg.a $(LDLIBS) + +rdjpgcom: rdjpgcom.o + $(LN) $(LDFLAGS) -o rdjpgcom rdjpgcom.o $(LDLIBS) + +wrjpgcom: wrjpgcom.o + $(LN) $(LDFLAGS) -o wrjpgcom wrjpgcom.o $(LDLIBS) + +jconfig.h: jconfig.txt + echo You must prepare a system-dependent jconfig.h file. + echo Please read the installation directions in install.txt. + exit 1 + +clean: + $(RM) *.o cjpeg djpeg jpegtran libjpeg.a rdjpgcom wrjpgcom + $(RM) core testout* + +test: cjpeg djpeg jpegtran + $(RM) testout* + ./djpeg -dct int -ppm -outfile testout.ppm testorig.jpg + ./djpeg -dct int -bmp -colors 256 -outfile testout.bmp testorig.jpg + ./cjpeg -dct int -outfile testout.jpg testimg.ppm + ./djpeg -dct int -ppm -outfile testoutp.ppm testprog.jpg + ./cjpeg -dct int -progressive -opt -outfile testoutp.jpg testimg.ppm + ./jpegtran -outfile testoutt.jpg testprog.jpg + cmp testimg.ppm testout.ppm + cmp testimg.bmp testout.bmp + cmp testimg.jpg testout.jpg + cmp testimg.ppm testoutp.ppm + cmp testimgp.jpg testoutp.jpg + cmp testorig.jpg testoutt.jpg + + +jaricom.o: jaricom.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jcapimin.o: jcapimin.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jcapistd.o: jcapistd.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jcarith.o: jcarith.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jccoefct.o: jccoefct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jccolor.o: jccolor.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jcdctmgr.o: jcdctmgr.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h +jchuff.o: jchuff.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jcinit.o: jcinit.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jcmainct.o: jcmainct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jcmarker.o: jcmarker.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jcmaster.o: jcmaster.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jcomapi.o: jcomapi.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jcparam.o: jcparam.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jcprepct.o: jcprepct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jcsample.o: jcsample.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jctrans.o: jctrans.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jdapimin.o: jdapimin.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jdapistd.o: jdapistd.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jdarith.o: jdarith.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jdatadst.o: jdatadst.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h +jdatasrc.o: jdatasrc.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h +jdcoefct.o: jdcoefct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jdcolor.o: jdcolor.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jddctmgr.o: jddctmgr.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h +jdhuff.o: jdhuff.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jdinput.o: jdinput.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jdmainct.o: jdmainct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jdmarker.o: jdmarker.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jdmaster.o: jdmaster.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jdmerge.o: jdmerge.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jdpostct.o: jdpostct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jdsample.o: jdsample.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jdtrans.o: jdtrans.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jerror.o: jerror.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jversion.h jerror.h +jfdctflt.o: jfdctflt.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h +jfdctfst.o: jfdctfst.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h +jfdctint.o: jfdctint.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h +jidctflt.o: jidctflt.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h +jidctfst.o: jidctfst.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h +jidctint.o: jidctint.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h +jquant1.o: jquant1.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jquant2.o: jquant2.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jutils.o: jutils.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jmemmgr.o: jmemmgr.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h +jmemansi.o: jmemansi.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h +jmemname.o: jmemname.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h +jmemnobs.o: jmemnobs.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h +jmemdos.o: jmemdos.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h +jmemmac.o: jmemmac.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h +cjpeg.o: cjpeg.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h jversion.h +djpeg.o: djpeg.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h jversion.h +jpegtran.o: jpegtran.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h transupp.h jversion.h +rdjpgcom.o: rdjpgcom.c jinclude.h jconfig.h +wrjpgcom.o: wrjpgcom.c jinclude.h jconfig.h +cdjpeg.o: cdjpeg.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h +rdcolmap.o: rdcolmap.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h +rdswitch.o: rdswitch.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h +transupp.o: transupp.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h transupp.h +rdppm.o: rdppm.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h +wrppm.o: wrppm.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h +rdgif.o: rdgif.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h +wrgif.o: wrgif.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h +rdtarga.o: rdtarga.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h +wrtarga.o: wrtarga.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h +rdbmp.o: rdbmp.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h +wrbmp.o: wrbmp.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h +rdrle.o: rdrle.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h +wrrle.o: wrrle.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h diff --git a/jpeg/makefile.bcc b/jpeg/makefile.bcc new file mode 100644 index 0000000..d89e09b --- /dev/null +++ b/jpeg/makefile.bcc @@ -0,0 +1,292 @@ +# Makefile for Independent JPEG Group's software + +# This makefile is suitable for Borland C on MS-DOS or OS/2. +# It works with Borland C++ for DOS, revision 3.0 or later, +# and has been tested with Borland C++ for OS/2. +# Watch out for optimization bugs in the OS/2 compilers --- see notes below! +# Thanks to Tom Wright and Ge' Weijers (original DOS) and +# Ken Porter (OS/2) for this file. + +# Read installation instructions before saying "make" !! + +# Are we under DOS or OS/2? +!if !$d(DOS) && !$d(OS2) +!if $d(__OS2__) +OS2=1 +!else +DOS=1 +!endif +!endif + +# The name of your C compiler: +CC= bcc + +# You may need to adjust these cc options: +!if $d(DOS) +CFLAGS= -O2 -mm -w-par -w-stu -w-ccc -w-rch +!else +CFLAGS= -O1 -w-par -w-stu -w-ccc -w-rch +!endif +# -O2 enables full code optimization (for pre-3.0 Borland C++, use -O -G -Z). +# -O2 is buggy in Borland OS/2 C++ revision 2.0, so use -O1 there for now. +# If you have Borland OS/2 C++ revision 1.0, use -O or no optimization at all. +# -mm selects medium memory model (near data, far code pointers; DOS only!) +# -w-par suppresses warnings about unused function parameters +# -w-stu suppresses warnings about incomplete structures +# -w-ccc suppresses warnings about compile-time-constant conditions +# -w-rch suppresses warnings about unreachable code +# Generally, we recommend defining any configuration symbols in jconfig.h, +# NOT via -D switches here. + +# Link-time cc options: +!if $d(DOS) +LDFLAGS= -mm +# memory model option here must match CFLAGS! +!else +LDFLAGS= +# -lai full-screen app +# -lc case-significant link +!endif + +# Put here the object file name for the correct system-dependent memory +# manager file. +# For DOS, we recommend jmemdos.c and jmemdosa.asm. +# For OS/2, we recommend jmemnobs.c (flat memory!) +# SYSDEPMEMLIB must list the same files with "+" signs for the librarian. +!if $d(DOS) +SYSDEPMEM= jmemdos.obj jmemdosa.obj +SYSDEPMEMLIB= +jmemdos.obj +jmemdosa.obj +!else +SYSDEPMEM= jmemnobs.obj +SYSDEPMEMLIB= +jmemnobs.obj +!endif + +# End of configurable options. + + +# source files: JPEG library proper +LIBSOURCES= jaricom.c jcapimin.c jcapistd.c jcarith.c jccoefct.c jccolor.c \ + jcdctmgr.c jchuff.c jcinit.c jcmainct.c jcmarker.c jcmaster.c \ + jcomapi.c jcparam.c jcprepct.c jcsample.c jctrans.c jdapimin.c \ + jdapistd.c jdarith.c jdatadst.c jdatasrc.c jdcoefct.c jdcolor.c \ + jddctmgr.c jdhuff.c jdinput.c jdmainct.c jdmarker.c jdmaster.c \ + jdmerge.c jdpostct.c jdsample.c jdtrans.c jerror.c jfdctflt.c \ + jfdctfst.c jfdctint.c jidctflt.c jidctfst.c jidctint.c jquant1.c \ + jquant2.c jutils.c jmemmgr.c +# memmgr back ends: compile only one of these into a working library +SYSDEPSOURCES= jmemansi.c jmemname.c jmemnobs.c jmemdos.c jmemmac.c +# source files: cjpeg/djpeg/jpegtran applications, also rdjpgcom/wrjpgcom +APPSOURCES= cjpeg.c djpeg.c jpegtran.c rdjpgcom.c wrjpgcom.c cdjpeg.c \ + rdcolmap.c rdswitch.c transupp.c rdppm.c wrppm.c rdgif.c wrgif.c \ + rdtarga.c wrtarga.c rdbmp.c wrbmp.c rdrle.c wrrle.c +SOURCES= $(LIBSOURCES) $(SYSDEPSOURCES) $(APPSOURCES) +# files included by source files +INCLUDES= jdct.h jerror.h jinclude.h jmemsys.h jmorecfg.h jpegint.h \ + jpeglib.h jversion.h cdjpeg.h cderror.h transupp.h +# documentation, test, and support files +DOCS= README install.txt usage.txt cjpeg.1 djpeg.1 jpegtran.1 rdjpgcom.1 \ + wrjpgcom.1 wizard.txt example.c libjpeg.txt structure.txt \ + coderules.txt filelist.txt change.log +MKFILES= configure Makefile.in makefile.ansi makefile.unix makefile.bcc \ + makefile.mc6 makefile.dj makefile.wat makefile.vc makejdsw.vc6 \ + makeadsw.vc6 makejdep.vc6 makejdsp.vc6 makejmak.vc6 makecdep.vc6 \ + makecdsp.vc6 makecmak.vc6 makeddep.vc6 makeddsp.vc6 makedmak.vc6 \ + maketdep.vc6 maketdsp.vc6 maketmak.vc6 makerdep.vc6 makerdsp.vc6 \ + makermak.vc6 makewdep.vc6 makewdsp.vc6 makewmak.vc6 makejsln.v10 \ + makeasln.v10 makejvcx.v10 makejfil.v10 makecvcx.v10 makecfil.v10 \ + makedvcx.v10 makedfil.v10 maketvcx.v10 maketfil.v10 makervcx.v10 \ + makerfil.v10 makewvcx.v10 makewfil.v10 makeproj.mac makcjpeg.st \ + makdjpeg.st makljpeg.st maktjpeg.st makefile.manx makefile.sas \ + makefile.mms makefile.vms makvms.opt +CONFIGFILES= jconfig.cfg jconfig.bcc jconfig.mc6 jconfig.dj jconfig.wat \ + jconfig.vc jconfig.mac jconfig.st jconfig.manx jconfig.sas \ + jconfig.vms +CONFIGUREFILES= config.guess config.sub install-sh ltmain.sh depcomp missing +OTHERFILES= jconfig.txt ckconfig.c ansi2knr.c ansi2knr.1 jmemdosa.asm \ + libjpeg.map +TESTFILES= testorig.jpg testimg.ppm testimg.bmp testimg.jpg testprog.jpg \ + testimgp.jpg +DISTFILES= $(DOCS) $(MKFILES) $(CONFIGFILES) $(SOURCES) $(INCLUDES) \ + $(CONFIGUREFILES) $(OTHERFILES) $(TESTFILES) +# library object files common to compression and decompression +COMOBJECTS= jaricom.obj jcomapi.obj jutils.obj jerror.obj jmemmgr.obj $(SYSDEPMEM) +# compression library object files +CLIBOBJECTS= jcapimin.obj jcapistd.obj jcarith.obj jctrans.obj jcparam.obj \ + jdatadst.obj jcinit.obj jcmaster.obj jcmarker.obj jcmainct.obj \ + jcprepct.obj jccoefct.obj jccolor.obj jcsample.obj jchuff.obj \ + jcdctmgr.obj jfdctfst.obj jfdctflt.obj jfdctint.obj +# decompression library object files +DLIBOBJECTS= jdapimin.obj jdapistd.obj jdarith.obj jdtrans.obj jdatasrc.obj \ + jdmaster.obj jdinput.obj jdmarker.obj jdhuff.obj jdmainct.obj \ + jdcoefct.obj jdpostct.obj jddctmgr.obj jidctfst.obj jidctflt.obj \ + jidctint.obj jdsample.obj jdcolor.obj jquant1.obj jquant2.obj \ + jdmerge.obj +# These objectfiles are included in libjpeg.lib +LIBOBJECTS= $(CLIBOBJECTS) $(DLIBOBJECTS) $(COMOBJECTS) +# object files for sample applications (excluding library files) +COBJECTS= cjpeg.obj rdppm.obj rdgif.obj rdtarga.obj rdrle.obj rdbmp.obj \ + rdswitch.obj cdjpeg.obj +DOBJECTS= djpeg.obj wrppm.obj wrgif.obj wrtarga.obj wrrle.obj wrbmp.obj \ + rdcolmap.obj cdjpeg.obj +TROBJECTS= jpegtran.obj rdswitch.obj cdjpeg.obj transupp.obj + + +all: libjpeg.lib cjpeg.exe djpeg.exe jpegtran.exe rdjpgcom.exe wrjpgcom.exe + +libjpeg.lib: $(LIBOBJECTS) + - del libjpeg.lib + tlib libjpeg.lib /E /C @&&| ++jcapimin.obj +jcapistd.obj +jcarith.obj +jctrans.obj +jcparam.obj & ++jdatadst.obj +jcinit.obj +jcmaster.obj +jcmarker.obj +jcmainct.obj & ++jcprepct.obj +jccoefct.obj +jccolor.obj +jcsample.obj +jchuff.obj & ++jcdctmgr.obj +jfdctfst.obj +jfdctflt.obj +jfdctint.obj +jdapimin.obj & ++jdapistd.obj +jdarith.obj +jdtrans.obj +jdatasrc.obj +jdmaster.obj & ++jdinput.obj +jdmarker.obj +jdhuff.obj +jdmainct.obj +jdcoefct.obj & ++jdpostct.obj +jddctmgr.obj +jidctfst.obj +jidctflt.obj +jidctint.obj & ++jdsample.obj +jdcolor.obj +jquant1.obj +jquant2.obj +jdmerge.obj & ++jaricom.obj +jcomapi.obj +jutils.obj +jerror.obj +jmemmgr.obj & +$(SYSDEPMEMLIB) +| + +cjpeg.exe: $(COBJECTS) libjpeg.lib + $(CC) $(LDFLAGS) -ecjpeg.exe $(COBJECTS) libjpeg.lib + +djpeg.exe: $(DOBJECTS) libjpeg.lib + $(CC) $(LDFLAGS) -edjpeg.exe $(DOBJECTS) libjpeg.lib + +jpegtran.exe: $(TROBJECTS) libjpeg.lib + $(CC) $(LDFLAGS) -ejpegtran.exe $(TROBJECTS) libjpeg.lib + +rdjpgcom.exe: rdjpgcom.c +!if $d(DOS) + $(CC) -ms -O rdjpgcom.c +!else + $(CC) $(CFLAGS) rdjpgcom.c +!endif + +# On DOS, wrjpgcom needs large model so it can malloc a 64K chunk +wrjpgcom.exe: wrjpgcom.c +!if $d(DOS) + $(CC) -ml -O wrjpgcom.c +!else + $(CC) $(CFLAGS) wrjpgcom.c +!endif + +# This "{}" syntax allows Borland Make to "batch" source files. +# In this way, each run of the compiler can build many modules. +.c.obj: + $(CC) $(CFLAGS) -c{ $<} + +jconfig.h: jconfig.txt + echo You must prepare a system-dependent jconfig.h file. + echo Please read the installation directions in install.txt. + exit 1 + +clean: + - del *.obj + - del libjpeg.lib + - del cjpeg.exe + - del djpeg.exe + - del jpegtran.exe + - del rdjpgcom.exe + - del wrjpgcom.exe + - del testout*.* + +test: cjpeg.exe djpeg.exe jpegtran.exe + - del testout*.* + djpeg -dct int -ppm -outfile testout.ppm testorig.jpg + djpeg -dct int -bmp -colors 256 -outfile testout.bmp testorig.jpg + cjpeg -dct int -outfile testout.jpg testimg.ppm + djpeg -dct int -ppm -outfile testoutp.ppm testprog.jpg + cjpeg -dct int -progressive -opt -outfile testoutp.jpg testimg.ppm + jpegtran -outfile testoutt.jpg testprog.jpg +!if $d(DOS) + fc /b testimg.ppm testout.ppm + fc /b testimg.bmp testout.bmp + fc /b testimg.jpg testout.jpg + fc /b testimg.ppm testoutp.ppm + fc /b testimgp.jpg testoutp.jpg + fc /b testorig.jpg testoutt.jpg +!else + echo n > n.tmp + comp testimg.ppm testout.ppm < n.tmp + comp testimg.bmp testout.bmp < n.tmp + comp testimg.jpg testout.jpg < n.tmp + comp testimg.ppm testoutp.ppm < n.tmp + comp testimgp.jpg testoutp.jpg < n.tmp + comp testorig.jpg testoutt.jpg < n.tmp + del n.tmp +!endif + + +jaricom.obj: jaricom.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jcapimin.obj: jcapimin.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jcapistd.obj: jcapistd.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jcarith.obj: jcarith.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jccoefct.obj: jccoefct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jccolor.obj: jccolor.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jcdctmgr.obj: jcdctmgr.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h +jchuff.obj: jchuff.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jcinit.obj: jcinit.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jcmainct.obj: jcmainct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jcmarker.obj: jcmarker.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jcmaster.obj: jcmaster.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jcomapi.obj: jcomapi.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jcparam.obj: jcparam.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jcprepct.obj: jcprepct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jcsample.obj: jcsample.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jctrans.obj: jctrans.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jdapimin.obj: jdapimin.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jdapistd.obj: jdapistd.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jdarith.obj: jdarith.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jdatadst.obj: jdatadst.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h +jdatasrc.obj: jdatasrc.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h +jdcoefct.obj: jdcoefct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jdcolor.obj: jdcolor.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jddctmgr.obj: jddctmgr.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h +jdhuff.obj: jdhuff.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jdinput.obj: jdinput.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jdmainct.obj: jdmainct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jdmarker.obj: jdmarker.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jdmaster.obj: jdmaster.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jdmerge.obj: jdmerge.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jdpostct.obj: jdpostct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jdsample.obj: jdsample.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jdtrans.obj: jdtrans.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jerror.obj: jerror.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jversion.h jerror.h +jfdctflt.obj: jfdctflt.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h +jfdctfst.obj: jfdctfst.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h +jfdctint.obj: jfdctint.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h +jidctflt.obj: jidctflt.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h +jidctfst.obj: jidctfst.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h +jidctint.obj: jidctint.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h +jquant1.obj: jquant1.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jquant2.obj: jquant2.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jutils.obj: jutils.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jmemmgr.obj: jmemmgr.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h +jmemansi.obj: jmemansi.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h +jmemname.obj: jmemname.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h +jmemnobs.obj: jmemnobs.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h +jmemdos.obj: jmemdos.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h +jmemmac.obj: jmemmac.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h +cjpeg.obj: cjpeg.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h jversion.h +djpeg.obj: djpeg.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h jversion.h +jpegtran.obj: jpegtran.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h transupp.h jversion.h +rdjpgcom.obj: rdjpgcom.c jinclude.h jconfig.h +wrjpgcom.obj: wrjpgcom.c jinclude.h jconfig.h +cdjpeg.obj: cdjpeg.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h +rdcolmap.obj: rdcolmap.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h +rdswitch.obj: rdswitch.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h +transupp.obj: transupp.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h transupp.h +rdppm.obj: rdppm.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h +wrppm.obj: wrppm.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h +rdgif.obj: rdgif.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h +wrgif.obj: wrgif.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h +rdtarga.obj: rdtarga.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h +wrtarga.obj: wrtarga.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h +rdbmp.obj: rdbmp.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h +wrbmp.obj: wrbmp.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h +rdrle.obj: rdrle.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h +wrrle.obj: wrrle.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h +jmemdosa.obj: jmemdosa.asm + tasm /mx jmemdosa.asm diff --git a/jpeg/makefile.dj b/jpeg/makefile.dj new file mode 100644 index 0000000..37b6ee7 --- /dev/null +++ b/jpeg/makefile.dj @@ -0,0 +1,227 @@ +# Makefile for Independent JPEG Group's software + +# This makefile is for DJGPP (Delorie's GNU C port on MS-DOS), v2.0 or later. +# Thanks to Frank J. Donahoe for this version. + +# Read installation instructions before saying "make" !! + +# The name of your C compiler: +CC= gcc + +# You may need to adjust these cc options: +CFLAGS= -O2 -Wall -I. +# Generally, we recommend defining any configuration symbols in jconfig.h, +# NOT via -D switches here. + +# Link-time cc options: +LDFLAGS= -s + +# To link any special libraries, add the necessary -l commands here. +LDLIBS= + +# Put here the object file name for the correct system-dependent memory +# manager file. For DJGPP this is usually jmemnobs.o, but you could +# use jmemname.o if you want to use named temp files instead of swap space. +SYSDEPMEM= jmemnobs.o + +# miscellaneous OS-dependent stuff +# linker +LN= $(CC) +# file deletion command +RM= del +# library (.a) file creation command +AR= ar rc +# second step in .a creation (use "touch" if not needed) +AR2= ranlib + +# End of configurable options. + + +# source files: JPEG library proper +LIBSOURCES= jaricom.c jcapimin.c jcapistd.c jcarith.c jccoefct.c jccolor.c \ + jcdctmgr.c jchuff.c jcinit.c jcmainct.c jcmarker.c jcmaster.c \ + jcomapi.c jcparam.c jcprepct.c jcsample.c jctrans.c jdapimin.c \ + jdapistd.c jdarith.c jdatadst.c jdatasrc.c jdcoefct.c jdcolor.c \ + jddctmgr.c jdhuff.c jdinput.c jdmainct.c jdmarker.c jdmaster.c \ + jdmerge.c jdpostct.c jdsample.c jdtrans.c jerror.c jfdctflt.c \ + jfdctfst.c jfdctint.c jidctflt.c jidctfst.c jidctint.c jquant1.c \ + jquant2.c jutils.c jmemmgr.c +# memmgr back ends: compile only one of these into a working library +SYSDEPSOURCES= jmemansi.c jmemname.c jmemnobs.c jmemdos.c jmemmac.c +# source files: cjpeg/djpeg/jpegtran applications, also rdjpgcom/wrjpgcom +APPSOURCES= cjpeg.c djpeg.c jpegtran.c rdjpgcom.c wrjpgcom.c cdjpeg.c \ + rdcolmap.c rdswitch.c transupp.c rdppm.c wrppm.c rdgif.c wrgif.c \ + rdtarga.c wrtarga.c rdbmp.c wrbmp.c rdrle.c wrrle.c +SOURCES= $(LIBSOURCES) $(SYSDEPSOURCES) $(APPSOURCES) +# files included by source files +INCLUDES= jdct.h jerror.h jinclude.h jmemsys.h jmorecfg.h jpegint.h \ + jpeglib.h jversion.h cdjpeg.h cderror.h transupp.h +# documentation, test, and support files +DOCS= README install.txt usage.txt cjpeg.1 djpeg.1 jpegtran.1 rdjpgcom.1 \ + wrjpgcom.1 wizard.txt example.c libjpeg.txt structure.txt \ + coderules.txt filelist.txt change.log +MKFILES= configure Makefile.in makefile.ansi makefile.unix makefile.bcc \ + makefile.mc6 makefile.dj makefile.wat makefile.vc makejdsw.vc6 \ + makeadsw.vc6 makejdep.vc6 makejdsp.vc6 makejmak.vc6 makecdep.vc6 \ + makecdsp.vc6 makecmak.vc6 makeddep.vc6 makeddsp.vc6 makedmak.vc6 \ + maketdep.vc6 maketdsp.vc6 maketmak.vc6 makerdep.vc6 makerdsp.vc6 \ + makermak.vc6 makewdep.vc6 makewdsp.vc6 makewmak.vc6 makejsln.v10 \ + makeasln.v10 makejvcx.v10 makejfil.v10 makecvcx.v10 makecfil.v10 \ + makedvcx.v10 makedfil.v10 maketvcx.v10 maketfil.v10 makervcx.v10 \ + makerfil.v10 makewvcx.v10 makewfil.v10 makeproj.mac makcjpeg.st \ + makdjpeg.st makljpeg.st maktjpeg.st makefile.manx makefile.sas \ + makefile.mms makefile.vms makvms.opt +CONFIGFILES= jconfig.cfg jconfig.bcc jconfig.mc6 jconfig.dj jconfig.wat \ + jconfig.vc jconfig.mac jconfig.st jconfig.manx jconfig.sas \ + jconfig.vms +CONFIGUREFILES= config.guess config.sub install-sh ltmain.sh depcomp missing +OTHERFILES= jconfig.txt ckconfig.c ansi2knr.c ansi2knr.1 jmemdosa.asm \ + libjpeg.map +TESTFILES= testorig.jpg testimg.ppm testimg.bmp testimg.jpg testprog.jpg \ + testimgp.jpg +DISTFILES= $(DOCS) $(MKFILES) $(CONFIGFILES) $(SOURCES) $(INCLUDES) \ + $(CONFIGUREFILES) $(OTHERFILES) $(TESTFILES) +# library object files common to compression and decompression +COMOBJECTS= jaricom.o jcomapi.o jutils.o jerror.o jmemmgr.o $(SYSDEPMEM) +# compression library object files +CLIBOBJECTS= jcapimin.o jcapistd.o jcarith.o jctrans.o jcparam.o \ + jdatadst.o jcinit.o jcmaster.o jcmarker.o jcmainct.o jcprepct.o \ + jccoefct.o jccolor.o jcsample.o jchuff.o jcdctmgr.o jfdctfst.o \ + jfdctflt.o jfdctint.o +# decompression library object files +DLIBOBJECTS= jdapimin.o jdapistd.o jdarith.o jdtrans.o jdatasrc.o \ + jdmaster.o jdinput.o jdmarker.o jdhuff.o jdmainct.o \ + jdcoefct.o jdpostct.o jddctmgr.o jidctfst.o jidctflt.o \ + jidctint.o jdsample.o jdcolor.o jquant1.o jquant2.o jdmerge.o +# These objectfiles are included in libjpeg.a +LIBOBJECTS= $(CLIBOBJECTS) $(DLIBOBJECTS) $(COMOBJECTS) +# object files for sample applications (excluding library files) +COBJECTS= cjpeg.o rdppm.o rdgif.o rdtarga.o rdrle.o rdbmp.o rdswitch.o \ + cdjpeg.o +DOBJECTS= djpeg.o wrppm.o wrgif.o wrtarga.o wrrle.o wrbmp.o rdcolmap.o \ + cdjpeg.o +TROBJECTS= jpegtran.o rdswitch.o cdjpeg.o transupp.o + + +all: libjpeg.a cjpeg.exe djpeg.exe jpegtran.exe rdjpgcom.exe wrjpgcom.exe + +libjpeg.a: $(LIBOBJECTS) + $(RM) libjpeg.a + $(AR) libjpeg.a $(LIBOBJECTS) + $(AR2) libjpeg.a + +cjpeg.exe: $(COBJECTS) libjpeg.a + $(LN) $(LDFLAGS) -o cjpeg.exe $(COBJECTS) libjpeg.a $(LDLIBS) + +djpeg.exe: $(DOBJECTS) libjpeg.a + $(LN) $(LDFLAGS) -o djpeg.exe $(DOBJECTS) libjpeg.a $(LDLIBS) + +jpegtran.exe: $(TROBJECTS) libjpeg.a + $(LN) $(LDFLAGS) -o jpegtran.exe $(TROBJECTS) libjpeg.a $(LDLIBS) + +rdjpgcom.exe: rdjpgcom.o + $(LN) $(LDFLAGS) -o rdjpgcom.exe rdjpgcom.o $(LDLIBS) + +wrjpgcom.exe: wrjpgcom.o + $(LN) $(LDFLAGS) -o wrjpgcom.exe wrjpgcom.o $(LDLIBS) + +jconfig.h: jconfig.txt + echo You must prepare a system-dependent jconfig.h file. + echo Please read the installation directions in install.txt. + exit 1 + +clean: + $(RM) *.o + $(RM) cjpeg.exe + $(RM) djpeg.exe + $(RM) jpegtran.exe + $(RM) rdjpgcom.exe + $(RM) wrjpgcom.exe + $(RM) libjpeg.a + $(RM) testout*.* + +test: cjpeg.exe djpeg.exe jpegtran.exe + $(RM) testout*.* + ./djpeg -dct int -ppm -outfile testout.ppm testorig.jpg + ./djpeg -dct int -bmp -colors 256 -outfile testout.bmp testorig.jpg + ./cjpeg -dct int -outfile testout.jpg testimg.ppm + ./djpeg -dct int -ppm -outfile testoutp.ppm testprog.jpg + ./cjpeg -dct int -progressive -opt -outfile testoutp.jpg testimg.ppm + ./jpegtran -outfile testoutt.jpg testprog.jpg + fc /b testimg.ppm testout.ppm + fc /b testimg.bmp testout.bmp + fc /b testimg.jpg testout.jpg + fc /b testimg.ppm testoutp.ppm + fc /b testimgp.jpg testoutp.jpg + fc /b testorig.jpg testoutt.jpg + + +jaricom.o: jaricom.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jcapimin.o: jcapimin.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jcapistd.o: jcapistd.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jcarith.o: jcarith.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jccoefct.o: jccoefct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jccolor.o: jccolor.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jcdctmgr.o: jcdctmgr.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h +jchuff.o: jchuff.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jcinit.o: jcinit.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jcmainct.o: jcmainct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jcmarker.o: jcmarker.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jcmaster.o: jcmaster.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jcomapi.o: jcomapi.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jcparam.o: jcparam.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jcprepct.o: jcprepct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jcsample.o: jcsample.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jctrans.o: jctrans.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jdapimin.o: jdapimin.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jdapistd.o: jdapistd.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jdarith.o: jdarith.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jdatadst.o: jdatadst.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h +jdatasrc.o: jdatasrc.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h +jdcoefct.o: jdcoefct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jdcolor.o: jdcolor.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jddctmgr.o: jddctmgr.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h +jdhuff.o: jdhuff.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jdinput.o: jdinput.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jdmainct.o: jdmainct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jdmarker.o: jdmarker.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jdmaster.o: jdmaster.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jdmerge.o: jdmerge.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jdpostct.o: jdpostct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jdsample.o: jdsample.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jdtrans.o: jdtrans.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jerror.o: jerror.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jversion.h jerror.h +jfdctflt.o: jfdctflt.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h +jfdctfst.o: jfdctfst.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h +jfdctint.o: jfdctint.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h +jidctflt.o: jidctflt.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h +jidctfst.o: jidctfst.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h +jidctint.o: jidctint.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h +jquant1.o: jquant1.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jquant2.o: jquant2.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jutils.o: jutils.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jmemmgr.o: jmemmgr.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h +jmemansi.o: jmemansi.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h +jmemname.o: jmemname.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h +jmemnobs.o: jmemnobs.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h +jmemdos.o: jmemdos.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h +jmemmac.o: jmemmac.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h +cjpeg.o: cjpeg.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h jversion.h +djpeg.o: djpeg.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h jversion.h +jpegtran.o: jpegtran.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h transupp.h jversion.h +rdjpgcom.o: rdjpgcom.c jinclude.h jconfig.h +wrjpgcom.o: wrjpgcom.c jinclude.h jconfig.h +cdjpeg.o: cdjpeg.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h +rdcolmap.o: rdcolmap.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h +rdswitch.o: rdswitch.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h +transupp.o: transupp.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h transupp.h +rdppm.o: rdppm.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h +wrppm.o: wrppm.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h +rdgif.o: rdgif.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h +wrgif.o: wrgif.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h +rdtarga.o: rdtarga.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h +wrtarga.o: wrtarga.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h +rdbmp.o: rdbmp.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h +wrbmp.o: wrbmp.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h +rdrle.o: rdrle.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h +wrrle.o: wrrle.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h diff --git a/jpeg/makefile.manx b/jpeg/makefile.manx new file mode 100644 index 0000000..471f408 --- /dev/null +++ b/jpeg/makefile.manx @@ -0,0 +1,221 @@ +# Makefile for Independent JPEG Group's software + +# This makefile is for Amiga systems using Manx Aztec C ver 5.x. +# Thanks to D.J. James (djjames@cup.portal.com) for this version. + +# Read installation instructions before saying "make" !! + +# The name of your C compiler: +CC= cc + +# You may need to adjust these cc options: +# Uncomment for generic 68000 code (will work on any Amiga) +ARCHFLAGS= -sn + +# Uncomment for 68020/68030 code (faster, but won't run on 68000 CPU) +#ARCHFLAGS= -c2 + +CFLAGS= -MC -MD $(ARCHFLAGS) -spfam -r4 + +# Link-time cc options: +LDFLAGS= -g + +# To link any special libraries, add the necessary -l commands here. +LDLIBS= -lml -lcl + +# Put here the object file name for the correct system-dependent memory +# manager file. For Amiga we recommend jmemname.o. +SYSDEPMEM= jmemname.o + +# miscellaneous OS-dependent stuff +# linker +LN= ln +# file deletion command +RM= delete quiet +# library (.lib) file creation command +AR= lb + +# End of configurable options. + + +# source files: JPEG library proper +LIBSOURCES= jaricom.c jcapimin.c jcapistd.c jcarith.c jccoefct.c jccolor.c \ + jcdctmgr.c jchuff.c jcinit.c jcmainct.c jcmarker.c jcmaster.c \ + jcomapi.c jcparam.c jcprepct.c jcsample.c jctrans.c jdapimin.c \ + jdapistd.c jdarith.c jdatadst.c jdatasrc.c jdcoefct.c jdcolor.c \ + jddctmgr.c jdhuff.c jdinput.c jdmainct.c jdmarker.c jdmaster.c \ + jdmerge.c jdpostct.c jdsample.c jdtrans.c jerror.c jfdctflt.c \ + jfdctfst.c jfdctint.c jidctflt.c jidctfst.c jidctint.c jquant1.c \ + jquant2.c jutils.c jmemmgr.c +# memmgr back ends: compile only one of these into a working library +SYSDEPSOURCES= jmemansi.c jmemname.c jmemnobs.c jmemdos.c jmemmac.c +# source files: cjpeg/djpeg/jpegtran applications, also rdjpgcom/wrjpgcom +APPSOURCES= cjpeg.c djpeg.c jpegtran.c rdjpgcom.c wrjpgcom.c cdjpeg.c \ + rdcolmap.c rdswitch.c transupp.c rdppm.c wrppm.c rdgif.c wrgif.c \ + rdtarga.c wrtarga.c rdbmp.c wrbmp.c rdrle.c wrrle.c +SOURCES= $(LIBSOURCES) $(SYSDEPSOURCES) $(APPSOURCES) +# files included by source files +INCLUDES= jdct.h jerror.h jinclude.h jmemsys.h jmorecfg.h jpegint.h \ + jpeglib.h jversion.h cdjpeg.h cderror.h transupp.h +# documentation, test, and support files +DOCS= README install.txt usage.txt cjpeg.1 djpeg.1 jpegtran.1 rdjpgcom.1 \ + wrjpgcom.1 wizard.txt example.c libjpeg.txt structure.txt \ + coderules.txt filelist.txt change.log +MKFILES= configure Makefile.in makefile.ansi makefile.unix makefile.bcc \ + makefile.mc6 makefile.dj makefile.wat makefile.vc makejdsw.vc6 \ + makeadsw.vc6 makejdep.vc6 makejdsp.vc6 makejmak.vc6 makecdep.vc6 \ + makecdsp.vc6 makecmak.vc6 makeddep.vc6 makeddsp.vc6 makedmak.vc6 \ + maketdep.vc6 maketdsp.vc6 maketmak.vc6 makerdep.vc6 makerdsp.vc6 \ + makermak.vc6 makewdep.vc6 makewdsp.vc6 makewmak.vc6 makejsln.v10 \ + makeasln.v10 makejvcx.v10 makejfil.v10 makecvcx.v10 makecfil.v10 \ + makedvcx.v10 makedfil.v10 maketvcx.v10 maketfil.v10 makervcx.v10 \ + makerfil.v10 makewvcx.v10 makewfil.v10 makeproj.mac makcjpeg.st \ + makdjpeg.st makljpeg.st maktjpeg.st makefile.manx makefile.sas \ + makefile.mms makefile.vms makvms.opt +CONFIGFILES= jconfig.cfg jconfig.bcc jconfig.mc6 jconfig.dj jconfig.wat \ + jconfig.vc jconfig.mac jconfig.st jconfig.manx jconfig.sas \ + jconfig.vms +CONFIGUREFILES= config.guess config.sub install-sh ltmain.sh depcomp missing +OTHERFILES= jconfig.txt ckconfig.c ansi2knr.c ansi2knr.1 jmemdosa.asm \ + libjpeg.map +TESTFILES= testorig.jpg testimg.ppm testimg.bmp testimg.jpg testprog.jpg \ + testimgp.jpg +DISTFILES= $(DOCS) $(MKFILES) $(CONFIGFILES) $(SOURCES) $(INCLUDES) \ + $(CONFIGUREFILES) $(OTHERFILES) $(TESTFILES) +# library object files common to compression and decompression +COMOBJECTS= jaricom.o jcomapi.o jutils.o jerror.o jmemmgr.o $(SYSDEPMEM) +# compression library object files +CLIBOBJECTS= jcapimin.o jcapistd.o jcarith.o jctrans.o jcparam.o \ + jdatadst.o jcinit.o jcmaster.o jcmarker.o jcmainct.o jcprepct.o \ + jccoefct.o jccolor.o jcsample.o jchuff.o jcdctmgr.o jfdctfst.o \ + jfdctflt.o jfdctint.o +# decompression library object files +DLIBOBJECTS= jdapimin.o jdapistd.o jdarith.o jdtrans.o jdatasrc.o \ + jdmaster.o jdinput.o jdmarker.o jdhuff.o jdmainct.o \ + jdcoefct.o jdpostct.o jddctmgr.o jidctfst.o jidctflt.o \ + jidctint.o jdsample.o jdcolor.o jquant1.o jquant2.o jdmerge.o +# These objectfiles are included in libjpeg.lib +LIBOBJECTS= $(CLIBOBJECTS) $(DLIBOBJECTS) $(COMOBJECTS) +# object files for sample applications (excluding library files) +COBJECTS= cjpeg.o rdppm.o rdgif.o rdtarga.o rdrle.o rdbmp.o rdswitch.o \ + cdjpeg.o +DOBJECTS= djpeg.o wrppm.o wrgif.o wrtarga.o wrrle.o wrbmp.o rdcolmap.o \ + cdjpeg.o +TROBJECTS= jpegtran.o rdswitch.o cdjpeg.o transupp.o + + +all: libjpeg.lib cjpeg djpeg jpegtran rdjpgcom wrjpgcom + +libjpeg.lib: $(LIBOBJECTS) + -$(RM) libjpeg.lib + $(AR) libjpeg.lib $(LIBOBJECTS) + +cjpeg: $(COBJECTS) libjpeg.lib + $(LN) $(LDFLAGS) -o cjpeg $(COBJECTS) libjpeg.lib $(LDLIBS) + +djpeg: $(DOBJECTS) libjpeg.lib + $(LN) $(LDFLAGS) -o djpeg $(DOBJECTS) libjpeg.lib $(LDLIBS) + +jpegtran: $(TROBJECTS) libjpeg.lib + $(LN) $(LDFLAGS) -o jpegtran $(TROBJECTS) libjpeg.lib $(LDLIBS) + +rdjpgcom: rdjpgcom.o + $(LN) $(LDFLAGS) -o rdjpgcom rdjpgcom.o $(LDLIBS) + +wrjpgcom: wrjpgcom.o + $(LN) $(LDFLAGS) -o wrjpgcom wrjpgcom.o $(LDLIBS) + +jconfig.h: jconfig.txt + echo You must prepare a system-dependent jconfig.h file. + echo Please read the installation directions in install.txt. + exit 1 + +clean: + -$(RM) *.o cjpeg djpeg jpegtran libjpeg.lib rdjpgcom wrjpgcom + -$(RM) core testout*.* + +test: cjpeg djpeg jpegtran + -$(RM) testout*.* + djpeg -dct int -ppm -outfile testout.ppm testorig.jpg + djpeg -dct int -bmp -colors 256 -outfile testout.bmp testorig.jpg + cjpeg -dct int -outfile testout.jpg testimg.ppm + djpeg -dct int -ppm -outfile testoutp.ppm testprog.jpg + cjpeg -dct int -progressive -opt -outfile testoutp.jpg testimg.ppm + jpegtran -outfile testoutt.jpg testprog.jpg + cmp testimg.ppm testout.ppm + cmp testimg.bmp testout.bmp + cmp testimg.jpg testout.jpg + cmp testimg.ppm testoutp.ppm + cmp testimgp.jpg testoutp.jpg + cmp testorig.jpg testoutt.jpg + + +jaricom.o: jaricom.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jcapimin.o: jcapimin.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jcapistd.o: jcapistd.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jcarith.o: jcarith.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jccoefct.o: jccoefct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jccolor.o: jccolor.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jcdctmgr.o: jcdctmgr.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h +jchuff.o: jchuff.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jcinit.o: jcinit.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jcmainct.o: jcmainct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jcmarker.o: jcmarker.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jcmaster.o: jcmaster.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jcomapi.o: jcomapi.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jcparam.o: jcparam.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jcprepct.o: jcprepct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jcsample.o: jcsample.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jctrans.o: jctrans.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jdapimin.o: jdapimin.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jdapistd.o: jdapistd.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jdarith.o: jdarith.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jdatadst.o: jdatadst.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h +jdatasrc.o: jdatasrc.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h +jdcoefct.o: jdcoefct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jdcolor.o: jdcolor.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jddctmgr.o: jddctmgr.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h +jdhuff.o: jdhuff.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jdinput.o: jdinput.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jdmainct.o: jdmainct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jdmarker.o: jdmarker.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jdmaster.o: jdmaster.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jdmerge.o: jdmerge.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jdpostct.o: jdpostct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jdsample.o: jdsample.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jdtrans.o: jdtrans.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jerror.o: jerror.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jversion.h jerror.h +jfdctflt.o: jfdctflt.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h +jfdctfst.o: jfdctfst.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h +jfdctint.o: jfdctint.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h +jidctflt.o: jidctflt.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h +jidctfst.o: jidctfst.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h +jidctint.o: jidctint.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h +jquant1.o: jquant1.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jquant2.o: jquant2.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jutils.o: jutils.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jmemmgr.o: jmemmgr.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h +jmemansi.o: jmemansi.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h +jmemname.o: jmemname.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h +jmemnobs.o: jmemnobs.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h +jmemdos.o: jmemdos.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h +jmemmac.o: jmemmac.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h +cjpeg.o: cjpeg.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h jversion.h +djpeg.o: djpeg.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h jversion.h +jpegtran.o: jpegtran.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h transupp.h jversion.h +rdjpgcom.o: rdjpgcom.c jinclude.h jconfig.h +wrjpgcom.o: wrjpgcom.c jinclude.h jconfig.h +cdjpeg.o: cdjpeg.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h +rdcolmap.o: rdcolmap.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h +rdswitch.o: rdswitch.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h +transupp.o: transupp.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h transupp.h +rdppm.o: rdppm.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h +wrppm.o: wrppm.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h +rdgif.o: rdgif.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h +wrgif.o: wrgif.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h +rdtarga.o: rdtarga.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h +wrtarga.o: wrtarga.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h +rdbmp.o: rdbmp.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h +wrbmp.o: wrbmp.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h +rdrle.o: rdrle.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h +wrrle.o: wrrle.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h diff --git a/jpeg/makefile.mc6 b/jpeg/makefile.mc6 new file mode 100644 index 0000000..1ee83be --- /dev/null +++ b/jpeg/makefile.mc6 @@ -0,0 +1,256 @@ +# Makefile for Independent JPEG Group's software + +# This makefile is for Microsoft C for MS-DOS, version 6.00A and up. +# Use NMAKE, not Microsoft's brain-damaged MAKE. +# Thanks to Alan Wright and Chris Turner of Olivetti Research Ltd. + +# Read installation instructions before saying "nmake" !! + +# You may need to adjust these compiler options: +CFLAGS = -AM -Oecigt -Gs -W3 +# -AM medium memory model (or use -AS for small model, if you remove features) +# -Oecigt -Gs maximum safe optimisation (-Ol has bugs in MSC 6.00A) +# -W3 warning level 3 +# You might also want to add -G2 if you have an 80286, etc. +# Generally, we recommend defining any configuration symbols in jconfig.h, +# NOT via -D switches here. + +# Jan-Herman Buining suggests the following switches for MS C 8.0 and a 486: +# CFLAGS = /AM /f- /FPi87 /G3 /Gs /Gy /Ob1 /Oc /Oe /Og /Oi /Ol /On /Oo /Ot \ +# /OV4 /W3 +# except for jquant1.c, which must be compiled with /Oo- to avoid a compiler +# crash. + +# Ingar Steinsland suggests the following switches when building +# a 16-bit Windows DLL: +# CFLAGS = -ALw -Gsw -Zpe -W3 -O2 -Zi -Zd + +# Put here the object file name for the correct system-dependent memory +# manager file. For DOS, we recommend jmemdos.c and jmemdosa.asm. +# (But not for Windows; see install.txt if you use this makefile for Windows.) +SYSDEPMEM= jmemdos.obj jmemdosa.obj +# SYSDEPMEMLIB must list the same files with "+" signs for the librarian. +SYSDEPMEMLIB= +jmemdos.obj +jmemdosa.obj + +# End of configurable options. + + +# source files: JPEG library proper +LIBSOURCES= jaricom.c jcapimin.c jcapistd.c jcarith.c jccoefct.c jccolor.c \ + jcdctmgr.c jchuff.c jcinit.c jcmainct.c jcmarker.c jcmaster.c \ + jcomapi.c jcparam.c jcprepct.c jcsample.c jctrans.c jdapimin.c \ + jdapistd.c jdarith.c jdatadst.c jdatasrc.c jdcoefct.c jdcolor.c \ + jddctmgr.c jdhuff.c jdinput.c jdmainct.c jdmarker.c jdmaster.c \ + jdmerge.c jdpostct.c jdsample.c jdtrans.c jerror.c jfdctflt.c \ + jfdctfst.c jfdctint.c jidctflt.c jidctfst.c jidctint.c jquant1.c \ + jquant2.c jutils.c jmemmgr.c +# memmgr back ends: compile only one of these into a working library +SYSDEPSOURCES= jmemansi.c jmemname.c jmemnobs.c jmemdos.c jmemmac.c +# source files: cjpeg/djpeg/jpegtran applications, also rdjpgcom/wrjpgcom +APPSOURCES= cjpeg.c djpeg.c jpegtran.c rdjpgcom.c wrjpgcom.c cdjpeg.c \ + rdcolmap.c rdswitch.c transupp.c rdppm.c wrppm.c rdgif.c wrgif.c \ + rdtarga.c wrtarga.c rdbmp.c wrbmp.c rdrle.c wrrle.c +SOURCES= $(LIBSOURCES) $(SYSDEPSOURCES) $(APPSOURCES) +# files included by source files +INCLUDES= jdct.h jerror.h jinclude.h jmemsys.h jmorecfg.h jpegint.h \ + jpeglib.h jversion.h cdjpeg.h cderror.h transupp.h +# documentation, test, and support files +DOCS= README install.txt usage.txt cjpeg.1 djpeg.1 jpegtran.1 rdjpgcom.1 \ + wrjpgcom.1 wizard.txt example.c libjpeg.txt structure.txt \ + coderules.txt filelist.txt change.log +MKFILES= configure Makefile.in makefile.ansi makefile.unix makefile.bcc \ + makefile.mc6 makefile.dj makefile.wat makefile.vc makejdsw.vc6 \ + makeadsw.vc6 makejdep.vc6 makejdsp.vc6 makejmak.vc6 makecdep.vc6 \ + makecdsp.vc6 makecmak.vc6 makeddep.vc6 makeddsp.vc6 makedmak.vc6 \ + maketdep.vc6 maketdsp.vc6 maketmak.vc6 makerdep.vc6 makerdsp.vc6 \ + makermak.vc6 makewdep.vc6 makewdsp.vc6 makewmak.vc6 makejsln.v10 \ + makeasln.v10 makejvcx.v10 makejfil.v10 makecvcx.v10 makecfil.v10 \ + makedvcx.v10 makedfil.v10 maketvcx.v10 maketfil.v10 makervcx.v10 \ + makerfil.v10 makewvcx.v10 makewfil.v10 makeproj.mac makcjpeg.st \ + makdjpeg.st makljpeg.st maktjpeg.st makefile.manx makefile.sas \ + makefile.mms makefile.vms makvms.opt +CONFIGFILES= jconfig.cfg jconfig.bcc jconfig.mc6 jconfig.dj jconfig.wat \ + jconfig.vc jconfig.mac jconfig.st jconfig.manx jconfig.sas \ + jconfig.vms +CONFIGUREFILES= config.guess config.sub install-sh ltmain.sh depcomp missing +OTHERFILES= jconfig.txt ckconfig.c ansi2knr.c ansi2knr.1 jmemdosa.asm \ + libjpeg.map +TESTFILES= testorig.jpg testimg.ppm testimg.bmp testimg.jpg testprog.jpg \ + testimgp.jpg +DISTFILES= $(DOCS) $(MKFILES) $(CONFIGFILES) $(SOURCES) $(INCLUDES) \ + $(CONFIGUREFILES) $(OTHERFILES) $(TESTFILES) +# library object files common to compression and decompression +COMOBJECTS= jaricom.obj jcomapi.obj jutils.obj jerror.obj jmemmgr.obj $(SYSDEPMEM) +# compression library object files +CLIBOBJECTS= jcapimin.obj jcapistd.obj jcarith.obj jctrans.obj jcparam.obj \ + jdatadst.obj jcinit.obj jcmaster.obj jcmarker.obj jcmainct.obj \ + jcprepct.obj jccoefct.obj jccolor.obj jcsample.obj jchuff.obj \ + jcdctmgr.obj jfdctfst.obj jfdctflt.obj jfdctint.obj +# decompression library object files +DLIBOBJECTS= jdapimin.obj jdapistd.obj jdarith.obj jdtrans.obj jdatasrc.obj \ + jdmaster.obj jdinput.obj jdmarker.obj jdhuff.obj jdmainct.obj \ + jdcoefct.obj jdpostct.obj jddctmgr.obj jidctfst.obj jidctflt.obj \ + jidctint.obj jdsample.obj jdcolor.obj jquant1.obj jquant2.obj \ + jdmerge.obj +# These objectfiles are included in libjpeg.lib +LIBOBJECTS= $(CLIBOBJECTS) $(DLIBOBJECTS) $(COMOBJECTS) +# object files for sample applications (excluding library files) +COBJECTS= cjpeg.obj rdppm.obj rdgif.obj rdtarga.obj rdrle.obj rdbmp.obj \ + rdswitch.obj cdjpeg.obj +DOBJECTS= djpeg.obj wrppm.obj wrgif.obj wrtarga.obj wrrle.obj wrbmp.obj \ + rdcolmap.obj cdjpeg.obj +TROBJECTS= jpegtran.obj rdswitch.obj cdjpeg.obj transupp.obj + +# need linker response file because file list > 128 chars +RFILE = libjpeg.ans + + +all: libjpeg.lib cjpeg.exe djpeg.exe jpegtran.exe rdjpgcom.exe wrjpgcom.exe + +libjpeg.lib: $(LIBOBJECTS) $(RFILE) + del libjpeg.lib + lib @$(RFILE) + +# linker response file for building libjpeg.lib +$(RFILE) : makefile + del $(RFILE) + echo libjpeg.lib >$(RFILE) +# silly want-to-create-it prompt: + echo y >>$(RFILE) + echo +jcapimin.obj +jcapistd.obj +jcarith.obj +jctrans.obj & >>$(RFILE) + echo +jcparam.obj +jdatadst.obj +jcinit.obj +jcmaster.obj & >>$(RFILE) + echo +jcmarker.obj +jcmainct.obj +jcprepct.obj & >>$(RFILE) + echo +jccoefct.obj +jccolor.obj +jcsample.obj +jchuff.obj & >>$(RFILE) + echo +jcdctmgr.obj +jfdctfst.obj +jfdctflt.obj & >>$(RFILE) + echo +jfdctint.obj +jdapimin.obj +jdapistd.obj & >>$(RFILE) + echo +jdarith.obj +jdtrans.obj +jdatasrc.obj +jdmaster.obj & >>$(RFILE) + echo +jdinput.obj +jdmarker.obj +jdhuff.obj +jdmainct.obj & >>$(RFILE) + echo +jdcoefct.obj +jdpostct.obj +jddctmgr.obj & >>$(RFILE) + echo +jidctfst.obj +jidctflt.obj +jidctint.obj & >>$(RFILE) + echo +jdsample.obj +jdcolor.obj +jquant1.obj & >>$(RFILE) + echo +jquant2.obj +jdmerge.obj +jaricom.obj +jcomapi.obj & >>$(RFILE) + echo +jutils.obj +jerror.obj +jmemmgr.obj & >>$(RFILE) + echo $(SYSDEPMEMLIB) ; >>$(RFILE) + +cjpeg.exe: $(COBJECTS) libjpeg.lib + echo $(COBJECTS) >cjpeg.lst + link /STACK:4096 /EXEPACK @cjpeg.lst, cjpeg.exe, , libjpeg.lib, ; + del cjpeg.lst + +djpeg.exe: $(DOBJECTS) libjpeg.lib + echo $(DOBJECTS) >djpeg.lst + link /STACK:4096 /EXEPACK @djpeg.lst, djpeg.exe, , libjpeg.lib, ; + del djpeg.lst + +jpegtran.exe: $(TROBJECTS) libjpeg.lib + link /STACK:4096 /EXEPACK $(TROBJECTS), jpegtran.exe, , libjpeg.lib, ; + +rdjpgcom.exe: rdjpgcom.c + $(CC) -AS -O -W3 rdjpgcom.c + +# wrjpgcom needs large model so it can malloc a 64K chunk +wrjpgcom.exe: wrjpgcom.c + $(CC) -AL -O -W3 wrjpgcom.c + +jconfig.h: jconfig.txt + echo You must prepare a system-dependent jconfig.h file. + echo Please read the installation directions in install.txt. + exit 1 + +clean: + del *.obj + del libjpeg.lib + del cjpeg.exe + del djpeg.exe + del jpegtran.exe + del rdjpgcom.exe + del wrjpgcom.exe + del testout*.* + +test: cjpeg.exe djpeg.exe jpegtran.exe + del testout*.* + djpeg -dct int -ppm -outfile testout.ppm testorig.jpg + djpeg -dct int -bmp -colors 256 -outfile testout.bmp testorig.jpg + cjpeg -dct int -outfile testout.jpg testimg.ppm + djpeg -dct int -ppm -outfile testoutp.ppm testprog.jpg + cjpeg -dct int -progressive -opt -outfile testoutp.jpg testimg.ppm + jpegtran -outfile testoutt.jpg testprog.jpg + fc /b testimg.ppm testout.ppm + fc /b testimg.bmp testout.bmp + fc /b testimg.jpg testout.jpg + fc /b testimg.ppm testoutp.ppm + fc /b testimgp.jpg testoutp.jpg + fc /b testorig.jpg testoutt.jpg + + +jaricom.obj: jaricom.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jcapimin.obj: jcapimin.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jcapistd.obj: jcapistd.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jcarith.obj: jcarith.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jccoefct.obj: jccoefct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jccolor.obj: jccolor.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jcdctmgr.obj: jcdctmgr.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h +jchuff.obj: jchuff.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jcinit.obj: jcinit.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jcmainct.obj: jcmainct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jcmarker.obj: jcmarker.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jcmaster.obj: jcmaster.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jcomapi.obj: jcomapi.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jcparam.obj: jcparam.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jcprepct.obj: jcprepct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jcsample.obj: jcsample.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jctrans.obj: jctrans.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jdapimin.obj: jdapimin.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jdapistd.obj: jdapistd.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jdarith.obj: jdarith.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jdatadst.obj: jdatadst.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h +jdatasrc.obj: jdatasrc.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h +jdcoefct.obj: jdcoefct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jdcolor.obj: jdcolor.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jddctmgr.obj: jddctmgr.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h +jdhuff.obj: jdhuff.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jdinput.obj: jdinput.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jdmainct.obj: jdmainct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jdmarker.obj: jdmarker.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jdmaster.obj: jdmaster.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jdmerge.obj: jdmerge.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jdpostct.obj: jdpostct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jdsample.obj: jdsample.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jdtrans.obj: jdtrans.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jerror.obj: jerror.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jversion.h jerror.h +jfdctflt.obj: jfdctflt.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h +jfdctfst.obj: jfdctfst.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h +jfdctint.obj: jfdctint.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h +jidctflt.obj: jidctflt.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h +jidctfst.obj: jidctfst.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h +jidctint.obj: jidctint.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h +jquant1.obj: jquant1.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jquant2.obj: jquant2.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jutils.obj: jutils.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jmemmgr.obj: jmemmgr.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h +jmemansi.obj: jmemansi.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h +jmemname.obj: jmemname.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h +jmemnobs.obj: jmemnobs.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h +jmemdos.obj: jmemdos.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h +jmemmac.obj: jmemmac.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h +cjpeg.obj: cjpeg.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h jversion.h +djpeg.obj: djpeg.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h jversion.h +jpegtran.obj: jpegtran.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h transupp.h jversion.h +rdjpgcom.obj: rdjpgcom.c jinclude.h jconfig.h +wrjpgcom.obj: wrjpgcom.c jinclude.h jconfig.h +cdjpeg.obj: cdjpeg.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h +rdcolmap.obj: rdcolmap.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h +rdswitch.obj: rdswitch.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h +transupp.obj: transupp.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h transupp.h +rdppm.obj: rdppm.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h +wrppm.obj: wrppm.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h +rdgif.obj: rdgif.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h +wrgif.obj: wrgif.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h +rdtarga.obj: rdtarga.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h +wrtarga.obj: wrtarga.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h +rdbmp.obj: rdbmp.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h +wrbmp.obj: wrbmp.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h +rdrle.obj: rdrle.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h +wrrle.obj: wrrle.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h +jmemdosa.obj : jmemdosa.asm + masm /mx $*; diff --git a/jpeg/makefile.mms b/jpeg/makefile.mms new file mode 100644 index 0000000..6019dfa --- /dev/null +++ b/jpeg/makefile.mms @@ -0,0 +1,225 @@ +# Makefile for Independent JPEG Group's software + +# This makefile is for use with MMS on Digital VMS systems. +# Thanks to Rick Dyson (dyson@iowasp.physics.uiowa.edu) +# and Tim Bell (tbell@netcom.com) for their help. + +# Read installation instructions before saying "MMS" !! + +# You may need to adjust these cc options: +CFLAGS= $(CFLAGS) /NoDebug /Optimize +# Generally, we recommend defining any configuration symbols in jconfig.h, +# NOT via /Define switches here. +.ifdef ALPHA +OPT= +.else +OPT= ,Sys$Disk:[]MAKVMS.OPT/Option +.endif + +# Put here the object file name for the correct system-dependent memory +# manager file. For Unix this is usually jmemnobs.o, but you may want +# to use jmemansi.o or jmemname.o if you have limited swap space. +SYSDEPMEM= jmemnobs.obj + +# End of configurable options. + + +# source files: JPEG library proper +LIBSOURCES= jaricom.c jcapimin.c jcapistd.c jcarith.c jccoefct.c jccolor.c \ + jcdctmgr.c jchuff.c jcinit.c jcmainct.c jcmarker.c jcmaster.c \ + jcomapi.c jcparam.c jcprepct.c jcsample.c jctrans.c jdapimin.c \ + jdapistd.c jdarith.c jdatadst.c jdatasrc.c jdcoefct.c jdcolor.c \ + jddctmgr.c jdhuff.c jdinput.c jdmainct.c jdmarker.c jdmaster.c \ + jdmerge.c jdpostct.c jdsample.c jdtrans.c jerror.c jfdctflt.c \ + jfdctfst.c jfdctint.c jidctflt.c jidctfst.c jidctint.c jquant1.c \ + jquant2.c jutils.c jmemmgr.c +# memmgr back ends: compile only one of these into a working library +SYSDEPSOURCES= jmemansi.c jmemname.c jmemnobs.c jmemdos.c jmemmac.c +# source files: cjpeg/djpeg/jpegtran applications, also rdjpgcom/wrjpgcom +APPSOURCES= cjpeg.c djpeg.c jpegtran.c rdjpgcom.c wrjpgcom.c cdjpeg.c \ + rdcolmap.c rdswitch.c transupp.c rdppm.c wrppm.c rdgif.c wrgif.c \ + rdtarga.c wrtarga.c rdbmp.c wrbmp.c rdrle.c wrrle.c +SOURCES= $(LIBSOURCES) $(SYSDEPSOURCES) $(APPSOURCES) +# files included by source files +INCLUDES= jdct.h jerror.h jinclude.h jmemsys.h jmorecfg.h jpegint.h \ + jpeglib.h jversion.h cdjpeg.h cderror.h transupp.h +# documentation, test, and support files +DOCS= README install.txt usage.txt cjpeg.1 djpeg.1 jpegtran.1 rdjpgcom.1 \ + wrjpgcom.1 wizard.txt example.c libjpeg.txt structure.txt \ + coderules.txt filelist.txt change.log +MKFILES= configure Makefile.in makefile.ansi makefile.unix makefile.bcc \ + makefile.mc6 makefile.dj makefile.wat makefile.vc makejdsw.vc6 \ + makeadsw.vc6 makejdep.vc6 makejdsp.vc6 makejmak.vc6 makecdep.vc6 \ + makecdsp.vc6 makecmak.vc6 makeddep.vc6 makeddsp.vc6 makedmak.vc6 \ + maketdep.vc6 maketdsp.vc6 maketmak.vc6 makerdep.vc6 makerdsp.vc6 \ + makermak.vc6 makewdep.vc6 makewdsp.vc6 makewmak.vc6 makejsln.v10 \ + makeasln.v10 makejvcx.v10 makejfil.v10 makecvcx.v10 makecfil.v10 \ + makedvcx.v10 makedfil.v10 maketvcx.v10 maketfil.v10 makervcx.v10 \ + makerfil.v10 makewvcx.v10 makewfil.v10 makeproj.mac makcjpeg.st \ + makdjpeg.st makljpeg.st maktjpeg.st makefile.manx makefile.sas \ + makefile.mms makefile.vms makvms.opt +CONFIGFILES= jconfig.cfg jconfig.bcc jconfig.mc6 jconfig.dj jconfig.wat \ + jconfig.vc jconfig.mac jconfig.st jconfig.manx jconfig.sas \ + jconfig.vms +CONFIGUREFILES= config.guess config.sub install-sh ltmain.sh depcomp missing +OTHERFILES= jconfig.txt ckconfig.c ansi2knr.c ansi2knr.1 jmemdosa.asm \ + libjpeg.map +TESTFILES= testorig.jpg testimg.ppm testimg.bmp testimg.jpg testprog.jpg \ + testimgp.jpg +DISTFILES= $(DOCS) $(MKFILES) $(CONFIGFILES) $(SOURCES) $(INCLUDES) \ + $(CONFIGUREFILES) $(OTHERFILES) $(TESTFILES) +# library object files common to compression and decompression +COMOBJECTS= jaricom.obj jcomapi.obj jutils.obj jerror.obj jmemmgr.obj $(SYSDEPMEM) +# compression library object files +CLIBOBJECTS= jcapimin.obj jcapistd.obj jcarith.obj jctrans.obj jcparam.obj \ + jdatadst.obj jcinit.obj jcmaster.obj jcmarker.obj jcmainct.obj \ + jcprepct.obj jccoefct.obj jccolor.obj jcsample.obj jchuff.obj \ + jcdctmgr.obj jfdctfst.obj jfdctflt.obj jfdctint.obj +# decompression library object files +DLIBOBJECTS= jdapimin.obj jdapistd.obj jdarith.obj jdtrans.obj jdatasrc.obj \ + jdmaster.obj jdinput.obj jdmarker.obj jdhuff.obj jdmainct.obj \ + jdcoefct.obj jdpostct.obj jddctmgr.obj jidctfst.obj jidctflt.obj \ + jidctint.obj jdsample.obj jdcolor.obj jquant1.obj jquant2.obj \ + jdmerge.obj +# These objectfiles are included in libjpeg.olb +LIBOBJECTS= $(CLIBOBJECTS) $(DLIBOBJECTS) $(COMOBJECTS) +# object files for sample applications (excluding library files) +COBJECTS= cjpeg.obj rdppm.obj rdgif.obj rdtarga.obj rdrle.obj rdbmp.obj \ + rdswitch.obj cdjpeg.obj +DOBJECTS= djpeg.obj wrppm.obj wrgif.obj wrtarga.obj wrrle.obj wrbmp.obj \ + rdcolmap.obj cdjpeg.obj +TROBJECTS= jpegtran.obj rdswitch.obj cdjpeg.obj transupp.obj +# objectfile lists with commas --- what a crock +COBJLIST= cjpeg.obj,rdppm.obj,rdgif.obj,rdtarga.obj,rdrle.obj,rdbmp.obj,\ + rdswitch.obj,cdjpeg.obj +DOBJLIST= djpeg.obj,wrppm.obj,wrgif.obj,wrtarga.obj,wrrle.obj,wrbmp.obj,\ + rdcolmap.obj,cdjpeg.obj +TROBJLIST= jpegtran.obj,rdswitch.obj,cdjpeg.obj,transupp.obj +LIBOBJLIST= jaricom.obj,jcapimin.obj,jcapistd.obj,jcarith.obj,jctrans.obj,\ + jcparam.obj,jdatadst.obj,jcinit.obj,jcmaster.obj,jcmarker.obj,\ + jcmainct.obj,jcprepct.obj,jccoefct.obj,jccolor.obj,jcsample.obj,\ + jchuff.obj,jcdctmgr.obj,jfdctfst.obj,jfdctflt.obj,jfdctint.obj,\ + jdapimin.obj,jdapistd.obj,jdarith.obj,jdtrans.obj,jdatasrc.obj,\ + jdmaster.obj,jdinput.obj,jdmarker.obj,jdhuff.obj,jdmainct.obj,\ + jdcoefct.obj,jdpostct.obj,jddctmgr.obj,jidctfst.obj,jidctflt.obj,\ + jidctint.obj,jdsample.obj,jdcolor.obj,jquant1.obj,jquant2.obj,\ + jdmerge.obj,jcomapi.obj,jutils.obj,jerror.obj,jmemmgr.obj,$(SYSDEPMEM) + + +.first + @- Define /NoLog Sys Sys$Library + +ALL : libjpeg.olb cjpeg.exe djpeg.exe jpegtran.exe rdjpgcom.exe wrjpgcom.exe + @ Continue + +libjpeg.olb : $(LIBOBJECTS) + Library /Create libjpeg.olb $(LIBOBJLIST) + +cjpeg.exe : $(COBJECTS) libjpeg.olb + $(LINK) $(LFLAGS) /Executable = cjpeg.exe $(COBJLIST),libjpeg.olb/Library$(OPT) + +djpeg.exe : $(DOBJECTS) libjpeg.olb + $(LINK) $(LFLAGS) /Executable = djpeg.exe $(DOBJLIST),libjpeg.olb/Library$(OPT) + +jpegtran.exe : $(TROBJECTS) libjpeg.olb + $(LINK) $(LFLAGS) /Executable = jpegtran.exe $(TROBJLIST),libjpeg.olb/Library$(OPT) + +rdjpgcom.exe : rdjpgcom.obj + $(LINK) $(LFLAGS) /Executable = rdjpgcom.exe rdjpgcom.obj$(OPT) + +wrjpgcom.exe : wrjpgcom.obj + $(LINK) $(LFLAGS) /Executable = wrjpgcom.exe wrjpgcom.obj$(OPT) + +jconfig.h : jconfig.vms + @- Copy jconfig.vms jconfig.h + +clean : + @- Set Protection = Owner:RWED *.*;-1 + @- Set Protection = Owner:RWED *.OBJ + - Purge /NoLog /NoConfirm *.* + - Delete /NoLog /NoConfirm *.OBJ; + +test : cjpeg.exe djpeg.exe jpegtran.exe + mcr sys$disk:[]djpeg -dct int -ppm -outfile testout.ppm testorig.jpg + mcr sys$disk:[]djpeg -dct int -bmp -colors 256 -outfile testout.bmp testorig.jpg + mcr sys$disk:[]cjpeg -dct int -outfile testout.jpg testimg.ppm + mcr sys$disk:[]djpeg -dct int -ppm -outfile testoutp.ppm testprog.jpg + mcr sys$disk:[]cjpeg -dct int -progressive -opt -outfile testoutp.jpg testimg.ppm + mcr sys$disk:[]jpegtran -outfile testoutt.jpg testprog.jpg + - Backup /Compare/Log testimg.ppm testout.ppm + - Backup /Compare/Log testimg.bmp testout.bmp + - Backup /Compare/Log testimg.jpg testout.jpg + - Backup /Compare/Log testimg.ppm testoutp.ppm + - Backup /Compare/Log testimgp.jpg testoutp.jpg + - Backup /Compare/Log testorig.jpg testoutt.jpg + + +jaricom.obj : jaricom.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jcapimin.obj : jcapimin.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jcapistd.obj : jcapistd.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jcarith.obj : jcarith.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jccoefct.obj : jccoefct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jccolor.obj : jccolor.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jcdctmgr.obj : jcdctmgr.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h +jchuff.obj : jchuff.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jcinit.obj : jcinit.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jcmainct.obj : jcmainct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jcmarker.obj : jcmarker.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jcmaster.obj : jcmaster.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jcomapi.obj : jcomapi.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jcparam.obj : jcparam.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jcprepct.obj : jcprepct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jcsample.obj : jcsample.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jctrans.obj : jctrans.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jdapimin.obj : jdapimin.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jdapistd.obj : jdapistd.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jdarith.obj : jdarith.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jdatadst.obj : jdatadst.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h +jdatasrc.obj : jdatasrc.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h +jdcoefct.obj : jdcoefct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jdcolor.obj : jdcolor.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jddctmgr.obj : jddctmgr.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h +jdhuff.obj : jdhuff.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jdinput.obj : jdinput.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jdmainct.obj : jdmainct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jdmarker.obj : jdmarker.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jdmaster.obj : jdmaster.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jdmerge.obj : jdmerge.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jdpostct.obj : jdpostct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jdsample.obj : jdsample.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jdtrans.obj : jdtrans.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jerror.obj : jerror.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jversion.h jerror.h +jfdctflt.obj : jfdctflt.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h +jfdctfst.obj : jfdctfst.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h +jfdctint.obj : jfdctint.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h +jidctflt.obj : jidctflt.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h +jidctfst.obj : jidctfst.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h +jidctint.obj : jidctint.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h +jquant1.obj : jquant1.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jquant2.obj : jquant2.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jutils.obj : jutils.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jmemmgr.obj : jmemmgr.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h +jmemansi.obj : jmemansi.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h +jmemname.obj : jmemname.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h +jmemnobs.obj : jmemnobs.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h +jmemdos.obj : jmemdos.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h +jmemmac.obj : jmemmac.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h +cjpeg.obj : cjpeg.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h jversion.h +djpeg.obj : djpeg.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h jversion.h +jpegtran.obj : jpegtran.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h transupp.h jversion.h +rdjpgcom.obj : rdjpgcom.c jinclude.h jconfig.h +wrjpgcom.obj : wrjpgcom.c jinclude.h jconfig.h +cdjpeg.obj : cdjpeg.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h +rdcolmap.obj : rdcolmap.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h +rdswitch.obj : rdswitch.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h +transupp.obj : transupp.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h transupp.h +rdppm.obj : rdppm.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h +wrppm.obj : wrppm.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h +rdgif.obj : rdgif.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h +wrgif.obj : wrgif.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h +rdtarga.obj : rdtarga.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h +wrtarga.obj : wrtarga.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h +rdbmp.obj : rdbmp.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h +wrbmp.obj : wrbmp.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h +rdrle.obj : rdrle.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h +wrrle.obj : wrrle.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h diff --git a/jpeg/makefile.sas b/jpeg/makefile.sas new file mode 100644 index 0000000..252f8fb --- /dev/null +++ b/jpeg/makefile.sas @@ -0,0 +1,259 @@ +# Makefile for Independent JPEG Group's software + +# This makefile is for Amiga systems using SAS C 6.0 and up. +# Thanks to Ed Hanway, Mark Rinfret, and Jim Zepeda. + +# Read installation instructions before saying "make" !! + +# The name of your C compiler: +CC= sc + +# You may need to adjust these cc options: +# Uncomment the following lines for generic 680x0 version +ARCHFLAGS= cpu=any +SUFFIX= + +# Uncomment the following lines for 68030-only version +#ARCHFLAGS= cpu=68030 +#SUFFIX=.030 + +CFLAGS= nostackcheck data=near parms=register optimize $(ARCHFLAGS) \ + ignore=104 ignore=304 ignore=306 +# ignore=104 disables warnings for mismatched const qualifiers +# ignore=304 disables warnings for variables being optimized out +# ignore=306 disables warnings for the inlining of functions +# Generally, we recommend defining any configuration symbols in jconfig.h, +# NOT via define switches here. + +# Link-time cc options: +LDFLAGS= SC SD ND BATCH + +# To link any special libraries, add the necessary commands here. +LDLIBS= LIB:scm.lib LIB:sc.lib + +# Put here the object file name for the correct system-dependent memory +# manager file. For Amiga we recommend jmemname.o. +SYSDEPMEM= jmemname.o + +# miscellaneous OS-dependent stuff +# linker +LN= slink +# file deletion command +RM= delete quiet +# library (.lib) file creation command +AR= oml + +# End of configurable options. + + +# source files: JPEG library proper +LIBSOURCES= jaricom.c jcapimin.c jcapistd.c jcarith.c jccoefct.c jccolor.c \ + jcdctmgr.c jchuff.c jcinit.c jcmainct.c jcmarker.c jcmaster.c \ + jcomapi.c jcparam.c jcprepct.c jcsample.c jctrans.c jdapimin.c \ + jdapistd.c jdarith.c jdatadst.c jdatasrc.c jdcoefct.c jdcolor.c \ + jddctmgr.c jdhuff.c jdinput.c jdmainct.c jdmarker.c jdmaster.c \ + jdmerge.c jdpostct.c jdsample.c jdtrans.c jerror.c jfdctflt.c \ + jfdctfst.c jfdctint.c jidctflt.c jidctfst.c jidctint.c jquant1.c \ + jquant2.c jutils.c jmemmgr.c +# memmgr back ends: compile only one of these into a working library +SYSDEPSOURCES= jmemansi.c jmemname.c jmemnobs.c jmemdos.c jmemmac.c +# source files: cjpeg/djpeg/jpegtran applications, also rdjpgcom/wrjpgcom +APPSOURCES= cjpeg.c djpeg.c jpegtran.c rdjpgcom.c wrjpgcom.c cdjpeg.c \ + rdcolmap.c rdswitch.c transupp.c rdppm.c wrppm.c rdgif.c wrgif.c \ + rdtarga.c wrtarga.c rdbmp.c wrbmp.c rdrle.c wrrle.c +SOURCES= $(LIBSOURCES) $(SYSDEPSOURCES) $(APPSOURCES) +# files included by source files +INCLUDES= jdct.h jerror.h jinclude.h jmemsys.h jmorecfg.h jpegint.h \ + jpeglib.h jversion.h cdjpeg.h cderror.h transupp.h +# documentation, test, and support files +DOCS= README install.txt usage.txt cjpeg.1 djpeg.1 jpegtran.1 rdjpgcom.1 \ + wrjpgcom.1 wizard.txt example.c libjpeg.txt structure.txt \ + coderules.txt filelist.txt change.log +MKFILES= configure Makefile.in makefile.ansi makefile.unix makefile.bcc \ + makefile.mc6 makefile.dj makefile.wat makefile.vc makejdsw.vc6 \ + makeadsw.vc6 makejdep.vc6 makejdsp.vc6 makejmak.vc6 makecdep.vc6 \ + makecdsp.vc6 makecmak.vc6 makeddep.vc6 makeddsp.vc6 makedmak.vc6 \ + maketdep.vc6 maketdsp.vc6 maketmak.vc6 makerdep.vc6 makerdsp.vc6 \ + makermak.vc6 makewdep.vc6 makewdsp.vc6 makewmak.vc6 makejsln.v10 \ + makeasln.v10 makejvcx.v10 makejfil.v10 makecvcx.v10 makecfil.v10 \ + makedvcx.v10 makedfil.v10 maketvcx.v10 maketfil.v10 makervcx.v10 \ + makerfil.v10 makewvcx.v10 makewfil.v10 makeproj.mac makcjpeg.st \ + makdjpeg.st makljpeg.st maktjpeg.st makefile.manx makefile.sas \ + makefile.mms makefile.vms makvms.opt +CONFIGFILES= jconfig.cfg jconfig.bcc jconfig.mc6 jconfig.dj jconfig.wat \ + jconfig.vc jconfig.mac jconfig.st jconfig.manx jconfig.sas \ + jconfig.vms +CONFIGUREFILES= config.guess config.sub install-sh ltmain.sh depcomp missing +OTHERFILES= jconfig.txt ckconfig.c ansi2knr.c ansi2knr.1 jmemdosa.asm \ + libjpeg.map +TESTFILES= testorig.jpg testimg.ppm testimg.bmp testimg.jpg testprog.jpg \ + testimgp.jpg +DISTFILES= $(DOCS) $(MKFILES) $(CONFIGFILES) $(SOURCES) $(INCLUDES) \ + $(CONFIGUREFILES) $(OTHERFILES) $(TESTFILES) +# library object files common to compression and decompression +COMOBJECTS= jaricom.o jcomapi.o jutils.o jerror.o jmemmgr.o $(SYSDEPMEM) +# compression library object files +CLIBOBJECTS= jcapimin.o jcapistd.o jcarith.o jctrans.o jcparam.o \ + jdatadst.o jcinit.o jcmaster.o jcmarker.o jcmainct.o jcprepct.o \ + jccoefct.o jccolor.o jcsample.o jchuff.o jcdctmgr.o jfdctfst.o \ + jfdctflt.o jfdctint.o +# decompression library object files +DLIBOBJECTS= jdapimin.o jdapistd.o jdarith.o jdtrans.o jdatasrc.o \ + jdmaster.o jdinput.o jdmarker.o jdhuff.o jdmainct.o \ + jdcoefct.o jdpostct.o jddctmgr.o jidctfst.o jidctflt.o \ + jidctint.o jdsample.o jdcolor.o jquant1.o jquant2.o jdmerge.o +# These objectfiles are included in libjpeg.lib +LIBOBJECTS= $(CLIBOBJECTS) $(DLIBOBJECTS) $(COMOBJECTS) +# object files for sample applications (excluding library files) +COBJECTS= cjpeg.o rdppm.o rdgif.o rdtarga.o rdrle.o rdbmp.o rdswitch.o \ + cdjpeg.o +DOBJECTS= djpeg.o wrppm.o wrgif.o wrtarga.o wrrle.o wrbmp.o rdcolmap.o \ + cdjpeg.o +TROBJECTS= jpegtran.o rdswitch.o cdjpeg.o transupp.o + + +all: libjpeg.lib cjpeg$(SUFFIX) djpeg$(SUFFIX) jpegtran$(SUFFIX) rdjpgcom$(SUFFIX) wrjpgcom$(SUFFIX) + +# note: do several AR steps to avoid command line length limitations + +libjpeg.lib: $(LIBOBJECTS) + -$(RM) libjpeg.lib + $(AR) libjpeg.lib r $(CLIBOBJECTS) + $(AR) libjpeg.lib r $(DLIBOBJECTS) + $(AR) libjpeg.lib r $(COMOBJECTS) + +cjpeg$(SUFFIX): $(COBJECTS) libjpeg.lib + $(LN) + +# You may want to adjust these compiler options: +CFLAGS= $(cflags) $(cdebug) $(cvars) -I. +# Generally, we recommend defining any configuration symbols in jconfig.h, +# NOT via -D switches here. + +# Link-time options: +LDFLAGS= $(ldebug) $(conlflags) + +# To link any special libraries, add the necessary commands here. +LDLIBS= $(conlibs) + +# Put here the object file name for the correct system-dependent memory +# manager file. For NT we suggest jmemnobs.obj, which expects the OS to +# provide adequate virtual memory. +SYSDEPMEM= jmemnobs.obj + +# miscellaneous OS-dependent stuff +# file deletion command +RM= del + +# End of configurable options. + + +# source files: JPEG library proper +LIBSOURCES= jaricom.c jcapimin.c jcapistd.c jcarith.c jccoefct.c jccolor.c \ + jcdctmgr.c jchuff.c jcinit.c jcmainct.c jcmarker.c jcmaster.c \ + jcomapi.c jcparam.c jcprepct.c jcsample.c jctrans.c jdapimin.c \ + jdapistd.c jdarith.c jdatadst.c jdatasrc.c jdcoefct.c jdcolor.c \ + jddctmgr.c jdhuff.c jdinput.c jdmainct.c jdmarker.c jdmaster.c \ + jdmerge.c jdpostct.c jdsample.c jdtrans.c jerror.c jfdctflt.c \ + jfdctfst.c jfdctint.c jidctflt.c jidctfst.c jidctint.c jquant1.c \ + jquant2.c jutils.c jmemmgr.c +# memmgr back ends: compile only one of these into a working library +SYSDEPSOURCES= jmemansi.c jmemname.c jmemnobs.c jmemdos.c jmemmac.c +# source files: cjpeg/djpeg/jpegtran applications, also rdjpgcom/wrjpgcom +APPSOURCES= cjpeg.c djpeg.c jpegtran.c rdjpgcom.c wrjpgcom.c cdjpeg.c \ + rdcolmap.c rdswitch.c transupp.c rdppm.c wrppm.c rdgif.c wrgif.c \ + rdtarga.c wrtarga.c rdbmp.c wrbmp.c rdrle.c wrrle.c +SOURCES= $(LIBSOURCES) $(SYSDEPSOURCES) $(APPSOURCES) +# files included by source files +INCLUDES= jdct.h jerror.h jinclude.h jmemsys.h jmorecfg.h jpegint.h \ + jpeglib.h jversion.h cdjpeg.h cderror.h transupp.h +# documentation, test, and support files +DOCS= README install.txt usage.txt cjpeg.1 djpeg.1 jpegtran.1 rdjpgcom.1 \ + wrjpgcom.1 wizard.txt example.c libjpeg.txt structure.txt \ + coderules.txt filelist.txt change.log +MKFILES= configure Makefile.in makefile.ansi makefile.unix makefile.bcc \ + makefile.mc6 makefile.dj makefile.wat makefile.vc makejdsw.vc6 \ + makeadsw.vc6 makejdep.vc6 makejdsp.vc6 makejmak.vc6 makecdep.vc6 \ + makecdsp.vc6 makecmak.vc6 makeddep.vc6 makeddsp.vc6 makedmak.vc6 \ + maketdep.vc6 maketdsp.vc6 maketmak.vc6 makerdep.vc6 makerdsp.vc6 \ + makermak.vc6 makewdep.vc6 makewdsp.vc6 makewmak.vc6 makejsln.v10 \ + makeasln.v10 makejvcx.v10 makejfil.v10 makecvcx.v10 makecfil.v10 \ + makedvcx.v10 makedfil.v10 maketvcx.v10 maketfil.v10 makervcx.v10 \ + makerfil.v10 makewvcx.v10 makewfil.v10 makeproj.mac makcjpeg.st \ + makdjpeg.st makljpeg.st maktjpeg.st makefile.manx makefile.sas \ + makefile.mms makefile.vms makvms.opt +CONFIGFILES= jconfig.cfg jconfig.bcc jconfig.mc6 jconfig.dj jconfig.wat \ + jconfig.vc jconfig.mac jconfig.st jconfig.manx jconfig.sas \ + jconfig.vms +CONFIGUREFILES= config.guess config.sub install-sh ltmain.sh depcomp missing +OTHERFILES= jconfig.txt ckconfig.c ansi2knr.c ansi2knr.1 jmemdosa.asm \ + libjpeg.map +TESTFILES= testorig.jpg testimg.ppm testimg.bmp testimg.jpg testprog.jpg \ + testimgp.jpg +DISTFILES= $(DOCS) $(MKFILES) $(CONFIGFILES) $(SOURCES) $(INCLUDES) \ + $(CONFIGUREFILES) $(OTHERFILES) $(TESTFILES) +# library object files common to compression and decompression +COMOBJECTS= jaricom.obj jcomapi.obj jutils.obj jerror.obj jmemmgr.obj $(SYSDEPMEM) +# compression library object files +CLIBOBJECTS= jcapimin.obj jcapistd.obj jcarith.obj jctrans.obj jcparam.obj \ + jdatadst.obj jcinit.obj jcmaster.obj jcmarker.obj jcmainct.obj \ + jcprepct.obj jccoefct.obj jccolor.obj jcsample.obj jchuff.obj \ + jcdctmgr.obj jfdctfst.obj jfdctflt.obj jfdctint.obj +# decompression library object files +DLIBOBJECTS= jdapimin.obj jdapistd.obj jdarith.obj jdtrans.obj jdatasrc.obj \ + jdmaster.obj jdinput.obj jdmarker.obj jdhuff.obj jdmainct.obj \ + jdcoefct.obj jdpostct.obj jddctmgr.obj jidctfst.obj jidctflt.obj \ + jidctint.obj jdsample.obj jdcolor.obj jquant1.obj jquant2.obj \ + jdmerge.obj +# These objectfiles are included in libjpeg.lib +LIBOBJECTS= $(CLIBOBJECTS) $(DLIBOBJECTS) $(COMOBJECTS) +# object files for sample applications (excluding library files) +COBJECTS= cjpeg.obj rdppm.obj rdgif.obj rdtarga.obj rdrle.obj rdbmp.obj \ + rdswitch.obj cdjpeg.obj +DOBJECTS= djpeg.obj wrppm.obj wrgif.obj wrtarga.obj wrrle.obj wrbmp.obj \ + rdcolmap.obj cdjpeg.obj +TROBJECTS= jpegtran.obj rdswitch.obj cdjpeg.obj transupp.obj + +# Template command for compiling .c to .obj +.c.obj: + $(cc) $(CFLAGS) $*.c + + +all: libjpeg.lib cjpeg.exe djpeg.exe jpegtran.exe rdjpgcom.exe wrjpgcom.exe + +libjpeg.lib: $(LIBOBJECTS) + $(RM) libjpeg.lib + lib -out:libjpeg.lib $(LIBOBJECTS) + +cjpeg.exe: $(COBJECTS) libjpeg.lib + $(link) $(LDFLAGS) -out:cjpeg.exe $(COBJECTS) libjpeg.lib $(LDLIBS) + +djpeg.exe: $(DOBJECTS) libjpeg.lib + $(link) $(LDFLAGS) -out:djpeg.exe $(DOBJECTS) libjpeg.lib $(LDLIBS) + +jpegtran.exe: $(TROBJECTS) libjpeg.lib + $(link) $(LDFLAGS) -out:jpegtran.exe $(TROBJECTS) libjpeg.lib $(LDLIBS) + +rdjpgcom.exe: rdjpgcom.obj + $(link) $(LDFLAGS) -out:rdjpgcom.exe rdjpgcom.obj $(LDLIBS) + +wrjpgcom.exe: wrjpgcom.obj + $(link) $(LDFLAGS) -out:wrjpgcom.exe wrjpgcom.obj $(LDLIBS) + + +clean: + $(RM) *.obj *.exe libjpeg.lib + $(RM) testout* + +setup-vc6: + ren jconfig.vc jconfig.h + ren makejdsw.vc6 jpeg.dsw + ren makeadsw.vc6 apps.dsw + ren makejmak.vc6 jpeg.mak + ren makejdep.vc6 jpeg.dep + ren makejdsp.vc6 jpeg.dsp + ren makecmak.vc6 cjpeg.mak + ren makecdep.vc6 cjpeg.dep + ren makecdsp.vc6 cjpeg.dsp + ren makedmak.vc6 djpeg.mak + ren makeddep.vc6 djpeg.dep + ren makeddsp.vc6 djpeg.dsp + ren maketmak.vc6 jpegtran.mak + ren maketdep.vc6 jpegtran.dep + ren maketdsp.vc6 jpegtran.dsp + ren makermak.vc6 rdjpgcom.mak + ren makerdep.vc6 rdjpgcom.dep + ren makerdsp.vc6 rdjpgcom.dsp + ren makewmak.vc6 wrjpgcom.mak + ren makewdep.vc6 wrjpgcom.dep + ren makewdsp.vc6 wrjpgcom.dsp + +setup-v10: + ren jconfig.vc jconfig.h + ren makejsln.v10 jpeg.sln + ren makeasln.v10 apps.sln + ren makejvcx.v10 jpeg.vcxproj + ren makejfil.v10 jpeg.vcxproj.filters + ren makecvcx.v10 cjpeg.vcxproj + ren makecfil.v10 cjpeg.vcxproj.filters + ren makedvcx.v10 djpeg.vcxproj + ren makedfil.v10 djpeg.vcxproj.filters + ren maketvcx.v10 jpegtran.vcxproj + ren maketfil.v10 jpegtran.vcxproj.filters + ren makervcx.v10 rdjpgcom.vcxproj + ren makerfil.v10 rdjpgcom.vcxproj.filters + ren makewvcx.v10 wrjpgcom.vcxproj + ren makewfil.v10 wrjpgcom.vcxproj.filters + +test: + IF EXIST testout* $(RM) testout* + .\djpeg -dct int -ppm -outfile testout.ppm testorig.jpg + .\djpeg -dct int -bmp -colors 256 -outfile testout.bmp testorig.jpg + .\cjpeg -dct int -outfile testout.jpg testimg.ppm + .\djpeg -dct int -ppm -outfile testoutp.ppm testprog.jpg + .\cjpeg -dct int -progressive -opt -outfile testoutp.jpg testimg.ppm + .\jpegtran -outfile testoutt.jpg testprog.jpg + fc /b testimg.ppm testout.ppm + fc /b testimg.bmp testout.bmp + fc /b testimg.jpg testout.jpg + fc /b testimg.ppm testoutp.ppm + fc /b testimgp.jpg testoutp.jpg + fc /b testorig.jpg testoutt.jpg + +test-build: + IF EXIST testout* $(RM) testout* + .\djpeg\Release\djpeg -dct int -ppm -outfile testout.ppm testorig.jpg + .\djpeg\Release\djpeg -dct int -bmp -colors 256 -outfile testout.bmp testorig.jpg + .\cjpeg\Release\cjpeg -dct int -outfile testout.jpg testimg.ppm + .\djpeg\Release\djpeg -dct int -ppm -outfile testoutp.ppm testprog.jpg + .\cjpeg\Release\cjpeg -dct int -progressive -opt -outfile testoutp.jpg testimg.ppm + .\jpegtran\Release\jpegtran -outfile testoutt.jpg testprog.jpg + fc /b testimg.ppm testout.ppm + fc /b testimg.bmp testout.bmp + fc /b testimg.jpg testout.jpg + fc /b testimg.ppm testoutp.ppm + fc /b testimgp.jpg testoutp.jpg + fc /b testorig.jpg testoutt.jpg + + +jaricom.obj: jaricom.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jcapimin.obj: jcapimin.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jcapistd.obj: jcapistd.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jcarith.obj: jcarith.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jccoefct.obj: jccoefct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jccolor.obj: jccolor.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jcdctmgr.obj: jcdctmgr.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h +jchuff.obj: jchuff.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jcinit.obj: jcinit.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jcmainct.obj: jcmainct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jcmarker.obj: jcmarker.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jcmaster.obj: jcmaster.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jcomapi.obj: jcomapi.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jcparam.obj: jcparam.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jcprepct.obj: jcprepct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jcsample.obj: jcsample.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jctrans.obj: jctrans.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jdapimin.obj: jdapimin.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jdapistd.obj: jdapistd.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jdarith.obj: jdarith.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jdatadst.obj: jdatadst.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h +jdatasrc.obj: jdatasrc.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h +jdcoefct.obj: jdcoefct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jdcolor.obj: jdcolor.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jddctmgr.obj: jddctmgr.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h +jdhuff.obj: jdhuff.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jdinput.obj: jdinput.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jdmainct.obj: jdmainct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jdmarker.obj: jdmarker.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jdmaster.obj: jdmaster.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jdmerge.obj: jdmerge.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jdpostct.obj: jdpostct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jdsample.obj: jdsample.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jdtrans.obj: jdtrans.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jerror.obj: jerror.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jversion.h jerror.h +jfdctflt.obj: jfdctflt.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h +jfdctfst.obj: jfdctfst.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h +jfdctint.obj: jfdctint.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h +jidctflt.obj: jidctflt.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h +jidctfst.obj: jidctfst.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h +jidctint.obj: jidctint.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h +jquant1.obj: jquant1.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jquant2.obj: jquant2.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jutils.obj: jutils.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jmemmgr.obj: jmemmgr.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h +jmemansi.obj: jmemansi.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h +jmemname.obj: jmemname.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h +jmemnobs.obj: jmemnobs.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h +jmemdos.obj: jmemdos.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h +jmemmac.obj: jmemmac.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h +cjpeg.obj: cjpeg.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h jversion.h +djpeg.obj: djpeg.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h jversion.h +jpegtran.obj: jpegtran.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h transupp.h jversion.h +rdjpgcom.obj: rdjpgcom.c jinclude.h jconfig.h +wrjpgcom.obj: wrjpgcom.c jinclude.h jconfig.h +cdjpeg.obj: cdjpeg.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h +rdcolmap.obj: rdcolmap.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h +rdswitch.obj: rdswitch.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h +transupp.obj: transupp.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h transupp.h +rdppm.obj: rdppm.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h +wrppm.obj: wrppm.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h +rdgif.obj: rdgif.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h +wrgif.obj: wrgif.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h +rdtarga.obj: rdtarga.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h +wrtarga.obj: wrtarga.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h +rdbmp.obj: rdbmp.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h +wrbmp.obj: wrbmp.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h +rdrle.obj: rdrle.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h +wrrle.obj: wrrle.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h diff --git a/jpeg/makefile.vms b/jpeg/makefile.vms new file mode 100644 index 0000000..a07d070 --- /dev/null +++ b/jpeg/makefile.vms @@ -0,0 +1,142 @@ +$! Makefile for Independent JPEG Group's software +$! +$! This is a command procedure for Digital VMS systems that do not have MMS. +$! It builds the JPEG software by brute force, recompiling everything whether +$! or not it is necessary. It then runs the basic self-test. +$! Thanks to Rick Dyson (dyson@iowasp.physics.uiowa.edu) +$! and Tim Bell (tbell@netcom.com) for their help. +$! +$! Read installation instructions before running this!! +$! +$ If F$Mode () .eqs. "INTERACTIVE" +$ Then +$ VERIFY = F$Verify (0) +$ Else +$ VERIFY = F$Verify (1) +$ EndIf +$ On Control_Y Then GoTo End +$ On Error Then GoTo End +$ +$ If F$GetSyi ("HW_MODEL") .gt. 1023 +$ Then +$ OPT = "" +$ Else +$ OPT = ",Sys$Disk:[]makvms.opt/Option" +$ EndIf +$ +$ DoCompile := CC /NoDebug /Optimize /NoList +$! +$ DoCompile jaricom.c +$ DoCompile jcapimin.c +$ DoCompile jcapistd.c +$ DoCompile jcarith.c +$ DoCompile jctrans.c +$ DoCompile jcparam.c +$ DoCompile jdatadst.c +$ DoCompile jcinit.c +$ DoCompile jcmaster.c +$ DoCompile jcmarker.c +$ DoCompile jcmainct.c +$ DoCompile jcprepct.c +$ DoCompile jccoefct.c +$ DoCompile jccolor.c +$ DoCompile jcsample.c +$ DoCompile jchuff.c +$ DoCompile jcdctmgr.c +$ DoCompile jfdctfst.c +$ DoCompile jfdctflt.c +$ DoCompile jfdctint.c +$ DoCompile jdapimin.c +$ DoCompile jdapistd.c +$ DoCompile jdarith.c +$ DoCompile jdtrans.c +$ DoCompile jdatasrc.c +$ DoCompile jdmaster.c +$ DoCompile jdinput.c +$ DoCompile jdmarker.c +$ DoCompile jdhuff.c +$ DoCompile jdmainct.c +$ DoCompile jdcoefct.c +$ DoCompile jdpostct.c +$ DoCompile jddctmgr.c +$ DoCompile jidctfst.c +$ DoCompile jidctflt.c +$ DoCompile jidctint.c +$ DoCompile jdsample.c +$ DoCompile jdcolor.c +$ DoCompile jquant1.c +$ DoCompile jquant2.c +$ DoCompile jdmerge.c +$ DoCompile jcomapi.c +$ DoCompile jutils.c +$ DoCompile jerror.c +$ DoCompile jmemmgr.c +$ DoCompile jmemnobs.c +$! +$ Library /Create libjpeg.olb jaricom.obj,jcapimin.obj,jcapistd.obj, - + jcarith.obj,jctrans.obj,jcparam.obj,jdatadst.obj,jcinit.obj, - + jcmaster.obj,jcmarker.obj,jcmainct.obj,jcprepct.obj,jccoefct.obj, - + jccolor.obj,jcsample.obj,jchuff.obj,jcdctmgr.obj,jfdctfst.obj, - + jfdctflt.obj,jfdctint.obj,jdapimin.obj,jdapistd.obj,jdarith.obj, - + jdtrans.obj,jdatasrc.obj,jdmaster.obj,jdinput.obj,jdmarker.obj, - + jdhuff.obj,jdmainct.obj,jdcoefct.obj,jdpostct.obj,jddctmgr.obj, - + jidctfst.obj,jidctflt.obj,jidctint.obj,jdsample.obj,jdcolor.obj, - + jquant1.obj,jquant2.obj,jdmerge.obj,jcomapi.obj,jutils.obj, - + jerror.obj,jmemmgr.obj,jmemnobs.obj +$! +$ DoCompile cjpeg.c +$ DoCompile rdppm.c +$ DoCompile rdgif.c +$ DoCompile rdtarga.c +$ DoCompile rdrle.c +$ DoCompile rdbmp.c +$ DoCompile rdswitch.c +$ DoCompile cdjpeg.c +$! +$ Link /NoMap /Executable = cjpeg.exe cjpeg.obj,rdppm.obj,rdgif.obj, - + rdtarga.obj,rdrle.obj,rdbmp.obj,rdswitch.obj,cdjpeg.obj,libjpeg.olb/Library'OPT' +$! +$ DoCompile djpeg.c +$ DoCompile wrppm.c +$ DoCompile wrgif.c +$ DoCompile wrtarga.c +$ DoCompile wrrle.c +$ DoCompile wrbmp.c +$ DoCompile rdcolmap.c +$ DoCompile cdjpeg.c +$! +$ Link /NoMap /Executable = djpeg.exe djpeg.obj,wrppm.obj,wrgif.obj, - + wrtarga.obj,wrrle.obj,wrbmp.obj,rdcolmap.obj,cdjpeg.obj,libjpeg.olb/Library'OPT' +$! +$ DoCompile jpegtran.c +$ DoCompile rdswitch.c +$ DoCompile cdjpeg.c +$ DoCompile transupp.c +$! +$ Link /NoMap /Executable = jpegtran.exe jpegtran.obj,rdswitch.obj, - + cdjpeg.obj,transupp.obj,libjpeg.olb/Library'OPT' +$! +$ DoCompile rdjpgcom.c +$ Link /NoMap /Executable = rdjpgcom.exe rdjpgcom.obj'OPT' +$! +$ DoCompile wrjpgcom.c +$ Link /NoMap /Executable = wrjpgcom.exe wrjpgcom.obj'OPT' +$! +$! Run the self-test +$! +$ mcr sys$disk:[]djpeg -dct int -ppm -outfile testout.ppm testorig.jpg +$ mcr sys$disk:[]djpeg -dct int -bmp -colors 256 -outfile testout.bmp testorig.jpg +$ mcr sys$disk:[]cjpeg -dct int -outfile testout.jpg testimg.ppm +$ mcr sys$disk:[]djpeg -dct int -ppm -outfile testoutp.ppm testprog.jpg +$ mcr sys$disk:[]cjpeg -dct int -progressive -opt -outfile testoutp.jpg testimg.ppm +$ mcr sys$disk:[]jpegtran -outfile testoutt.jpg testprog.jpg +$ Backup /Compare/Log testimg.ppm testout.ppm +$ Backup /Compare/Log testimg.bmp testout.bmp +$ Backup /Compare/Log testimg.jpg testout.jpg +$ Backup /Compare/Log testimg.ppm testoutp.ppm +$ Backup /Compare/Log testimgp.jpg testoutp.jpg +$ Backup /Compare/Log testorig.jpg testoutt.jpg +$! +$End: +$ If Verify Then Set Verify +$ Exit diff --git a/jpeg/makefile.wat b/jpeg/makefile.wat new file mode 100644 index 0000000..a3e652b --- /dev/null +++ b/jpeg/makefile.wat @@ -0,0 +1,240 @@ +# Makefile for Independent JPEG Group's software + +# This makefile is suitable for Watcom C/C++ 10.0 on MS-DOS (using +# dos4g extender), OS/2, and Windows NT console mode. +# Thanks to Janos Haide, jhaide@btrvtech.com. + +# Read installation instructions before saying "wmake" !! + +# Uncomment line for desired system +SYSTEM=DOS +#SYSTEM=OS2 +#SYSTEM=NT + +# The name of your C compiler: +CC= wcl386 + +# You may need to adjust these cc options: +CFLAGS= -4r -ort -wx -zq -bt=$(SYSTEM) +# Caution: avoid -ol or -ox; these generate bad code with 10.0 or 10.0a. +# Generally, we recommend defining any configuration symbols in jconfig.h, +# NOT via -D switches here. + +# Link-time cc options: +!ifeq SYSTEM DOS +LDFLAGS= -zq -l=dos4g +!else ifeq SYSTEM OS2 +LDFLAGS= -zq -l=os2v2 +!else ifeq SYSTEM NT +LDFLAGS= -zq -l=nt +!endif + +# Put here the object file name for the correct system-dependent memory +# manager file. jmemnobs should work fine for dos4g or OS/2 environment. +SYSDEPMEM= jmemnobs.obj + +# End of configurable options. + + +# source files: JPEG library proper +LIBSOURCES= jaricom.c jcapimin.c jcapistd.c jcarith.c jccoefct.c jccolor.c & + jcdctmgr.c jchuff.c jcinit.c jcmainct.c jcmarker.c jcmaster.c & + jcomapi.c jcparam.c jcprepct.c jcsample.c jctrans.c jdapimin.c & + jdapistd.c jdarith.c jdatadst.c jdatasrc.c jdcoefct.c jdcolor.c & + jddctmgr.c jdhuff.c jdinput.c jdmainct.c jdmarker.c jdmaster.c & + jdmerge.c jdpostct.c jdsample.c jdtrans.c jerror.c jfdctflt.c & + jfdctfst.c jfdctint.c jidctflt.c jidctfst.c jidctint.c jquant1.c & + jquant2.c jutils.c jmemmgr.c +# memmgr back ends: compile only one of these into a working library +SYSDEPSOURCES= jmemansi.c jmemname.c jmemnobs.c jmemdos.c jmemmac.c +# source files: cjpeg/djpeg/jpegtran applications, also rdjpgcom/wrjpgcom +APPSOURCES= cjpeg.c djpeg.c jpegtran.c rdjpgcom.c wrjpgcom.c cdjpeg.c & + rdcolmap.c rdswitch.c transupp.c rdppm.c wrppm.c rdgif.c wrgif.c & + rdtarga.c wrtarga.c rdbmp.c wrbmp.c rdrle.c wrrle.c +SOURCES= $(LIBSOURCES) $(SYSDEPSOURCES) $(APPSOURCES) +# files included by source files +INCLUDES= jdct.h jerror.h jinclude.h jmemsys.h jmorecfg.h jpegint.h & + jpeglib.h jversion.h cdjpeg.h cderror.h transupp.h +# documentation, test, and support files +DOCS= README install.txt usage.txt cjpeg.1 djpeg.1 jpegtran.1 rdjpgcom.1 & + wrjpgcom.1 wizard.txt example.c libjpeg.txt structure.txt & + coderules.txt filelist.txt change.log +MKFILES= configure Makefile.in makefile.ansi makefile.unix makefile.bcc & + makefile.mc6 makefile.dj makefile.wat makefile.vc makejdsw.vc6 & + makeadsw.vc6 makejdep.vc6 makejdsp.vc6 makejmak.vc6 makecdep.vc6 & + makecdsp.vc6 makecmak.vc6 makeddep.vc6 makeddsp.vc6 makedmak.vc6 & + maketdep.vc6 maketdsp.vc6 maketmak.vc6 makerdep.vc6 makerdsp.vc6 & + makermak.vc6 makewdep.vc6 makewdsp.vc6 makewmak.vc6 makejsln.v10 & + makeasln.v10 makejvcx.v10 makejfil.v10 makecvcx.v10 makecfil.v10 & + makedvcx.v10 makedfil.v10 maketvcx.v10 maketfil.v10 makervcx.v10 & + makerfil.v10 makewvcx.v10 makewfil.v10 makeproj.mac makcjpeg.st & + makdjpeg.st makljpeg.st maktjpeg.st makefile.manx makefile.sas & + makefile.mms makefile.vms makvms.opt +CONFIGFILES= jconfig.cfg jconfig.bcc jconfig.mc6 jconfig.dj jconfig.wat & + jconfig.vc jconfig.mac jconfig.st jconfig.manx jconfig.sas & + jconfig.vms +CONFIGUREFILES= config.guess config.sub install-sh ltmain.sh depcomp missing +OTHERFILES= jconfig.txt ckconfig.c ansi2knr.c ansi2knr.1 jmemdosa.asm & + libjpeg.map +TESTFILES= testorig.jpg testimg.ppm testimg.bmp testimg.jpg testprog.jpg & + testimgp.jpg +DISTFILES= $(DOCS) $(MKFILES) $(CONFIGFILES) $(SOURCES) $(INCLUDES) & + $(CONFIGUREFILES) $(OTHERFILES) $(TESTFILES) +# library object files common to compression and decompression +COMOBJECTS= jaricom.obj jcomapi.obj jutils.obj jerror.obj jmemmgr.obj $(SYSDEPMEM) +# compression library object files +CLIBOBJECTS= jcapimin.obj jcapistd.obj jcarith.obj jctrans.obj jcparam.obj & + jdatadst.obj jcinit.obj jcmaster.obj jcmarker.obj jcmainct.obj & + jcprepct.obj jccoefct.obj jccolor.obj jcsample.obj jchuff.obj & + jcdctmgr.obj jfdctfst.obj jfdctflt.obj jfdctint.obj +# decompression library object files +DLIBOBJECTS= jdapimin.obj jdapistd.obj jdarith.obj jdtrans.obj jdatasrc.obj & + jdmaster.obj jdinput.obj jdmarker.obj jdhuff.obj jdmainct.obj & + jdcoefct.obj jdpostct.obj jddctmgr.obj jidctfst.obj jidctflt.obj & + jidctint.obj jdsample.obj jdcolor.obj jquant1.obj jquant2.obj & + jdmerge.obj +# These objectfiles are included in libjpeg.lib +LIBOBJECTS= $(CLIBOBJECTS) $(DLIBOBJECTS) $(COMOBJECTS) +# object files for sample applications (excluding library files) +COBJECTS= cjpeg.obj rdppm.obj rdgif.obj rdtarga.obj rdrle.obj rdbmp.obj & + rdswitch.obj cdjpeg.obj +DOBJECTS= djpeg.obj wrppm.obj wrgif.obj wrtarga.obj wrrle.obj wrbmp.obj & + rdcolmap.obj cdjpeg.obj +TROBJECTS= jpegtran.obj rdswitch.obj cdjpeg.obj transupp.obj + + +all: libjpeg.lib cjpeg.exe djpeg.exe jpegtran.exe rdjpgcom.exe wrjpgcom.exe + +libjpeg.lib: $(LIBOBJECTS) + - del libjpeg.lib + * wlib -n libjpeg.lib $(LIBOBJECTS) + +cjpeg.exe: $(COBJECTS) libjpeg.lib + $(CC) $(LDFLAGS) $(COBJECTS) libjpeg.lib + +djpeg.exe: $(DOBJECTS) libjpeg.lib + $(CC) $(LDFLAGS) $(DOBJECTS) libjpeg.lib + +jpegtran.exe: $(TROBJECTS) libjpeg.lib + $(CC) $(LDFLAGS) $(TROBJECTS) libjpeg.lib + +rdjpgcom.exe: rdjpgcom.c + $(CC) $(CFLAGS) $(LDFLAGS) rdjpgcom.c + +wrjpgcom.exe: wrjpgcom.c + $(CC) $(CFLAGS) $(LDFLAGS) wrjpgcom.c + +.c.obj: + $(CC) $(CFLAGS) -c $< + +jconfig.h: jconfig.txt + echo You must prepare a system-dependent jconfig.h file. + echo Please read the installation directions in install.txt. + exit 1 + +clean: .SYMBOLIC + - del *.obj + - del libjpeg.lib + - del cjpeg.exe + - del djpeg.exe + - del jpegtran.exe + - del rdjpgcom.exe + - del wrjpgcom.exe + - del testout*.* + +test: cjpeg.exe djpeg.exe jpegtran.exe .SYMBOLIC + - del testout*.* + djpeg -dct int -ppm -outfile testout.ppm testorig.jpg + djpeg -dct int -bmp -colors 256 -outfile testout.bmp testorig.jpg + cjpeg -dct int -outfile testout.jpg testimg.ppm + djpeg -dct int -ppm -outfile testoutp.ppm testprog.jpg + cjpeg -dct int -progressive -opt -outfile testoutp.jpg testimg.ppm + jpegtran -outfile testoutt.jpg testprog.jpg +!ifeq SYSTEM DOS + fc /b testimg.ppm testout.ppm + fc /b testimg.bmp testout.bmp + fc /b testimg.jpg testout.jpg + fc /b testimg.ppm testoutp.ppm + fc /b testimgp.jpg testoutp.jpg + fc /b testorig.jpg testoutt.jpg +!else + echo n > n.tmp + comp testimg.ppm testout.ppm < n.tmp + comp testimg.bmp testout.bmp < n.tmp + comp testimg.jpg testout.jpg < n.tmp + comp testimg.ppm testoutp.ppm < n.tmp + comp testimgp.jpg testoutp.jpg < n.tmp + comp testorig.jpg testoutt.jpg < n.tmp + del n.tmp +!endif + + +jaricom.obj: jaricom.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jcapimin.obj: jcapimin.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jcapistd.obj: jcapistd.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jcarith.obj: jcarith.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jccoefct.obj: jccoefct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jccolor.obj: jccolor.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jcdctmgr.obj: jcdctmgr.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h +jchuff.obj: jchuff.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jcinit.obj: jcinit.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jcmainct.obj: jcmainct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jcmarker.obj: jcmarker.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jcmaster.obj: jcmaster.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jcomapi.obj: jcomapi.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jcparam.obj: jcparam.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jcprepct.obj: jcprepct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jcsample.obj: jcsample.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jctrans.obj: jctrans.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jdapimin.obj: jdapimin.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jdapistd.obj: jdapistd.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jdarith.obj: jdarith.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jdatadst.obj: jdatadst.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h +jdatasrc.obj: jdatasrc.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h +jdcoefct.obj: jdcoefct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jdcolor.obj: jdcolor.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jddctmgr.obj: jddctmgr.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h +jdhuff.obj: jdhuff.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jdinput.obj: jdinput.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jdmainct.obj: jdmainct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jdmarker.obj: jdmarker.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jdmaster.obj: jdmaster.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jdmerge.obj: jdmerge.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jdpostct.obj: jdpostct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jdsample.obj: jdsample.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jdtrans.obj: jdtrans.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jerror.obj: jerror.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jversion.h jerror.h +jfdctflt.obj: jfdctflt.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h +jfdctfst.obj: jfdctfst.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h +jfdctint.obj: jfdctint.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h +jidctflt.obj: jidctflt.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h +jidctfst.obj: jidctfst.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h +jidctint.obj: jidctint.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h +jquant1.obj: jquant1.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jquant2.obj: jquant2.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jutils.obj: jutils.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h +jmemmgr.obj: jmemmgr.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h +jmemansi.obj: jmemansi.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h +jmemname.obj: jmemname.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h +jmemnobs.obj: jmemnobs.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h +jmemdos.obj: jmemdos.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h +jmemmac.obj: jmemmac.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h +cjpeg.obj: cjpeg.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h jversion.h +djpeg.obj: djpeg.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h jversion.h +jpegtran.obj: jpegtran.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h transupp.h jversion.h +rdjpgcom.obj: rdjpgcom.c jinclude.h jconfig.h +wrjpgcom.obj: wrjpgcom.c jinclude.h jconfig.h +cdjpeg.obj: cdjpeg.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h +rdcolmap.obj: rdcolmap.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h +rdswitch.obj: rdswitch.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h +transupp.obj: transupp.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h transupp.h +rdppm.obj: rdppm.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h +wrppm.obj: wrppm.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h +rdgif.obj: rdgif.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h +wrgif.obj: wrgif.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h +rdtarga.obj: rdtarga.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h +wrtarga.obj: wrtarga.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h +rdbmp.obj: rdbmp.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h +wrbmp.obj: wrbmp.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h +rdrle.obj: rdrle.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h +wrrle.obj: wrrle.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h diff --git a/jpeg/makejdep.vc6 b/jpeg/makejdep.vc6 new file mode 100644 index 0000000..d373edf --- /dev/null +++ b/jpeg/makejdep.vc6 @@ -0,0 +1,423 @@ +# Microsoft Developer Studio erstellte Abhängigkeitsdatei, einbezogen von jpeg.mak + +.\jaricom.c : \ + ".\jconfig.h"\ + ".\jerror.h"\ + ".\jinclude.h"\ + ".\jmorecfg.h"\ + ".\jpegint.h"\ + ".\jpeglib.h"\ + + +.\jcapimin.c : \ + ".\jconfig.h"\ + ".\jerror.h"\ + ".\jinclude.h"\ + ".\jmorecfg.h"\ + ".\jpegint.h"\ + ".\jpeglib.h"\ + + +.\jcapistd.c : \ + ".\jconfig.h"\ + ".\jerror.h"\ + ".\jinclude.h"\ + ".\jmorecfg.h"\ + ".\jpegint.h"\ + ".\jpeglib.h"\ + + +.\jcarith.c : \ + ".\jconfig.h"\ + ".\jerror.h"\ + ".\jinclude.h"\ + ".\jmorecfg.h"\ + ".\jpegint.h"\ + ".\jpeglib.h"\ + + +.\jccoefct.c : \ + ".\jconfig.h"\ + ".\jerror.h"\ + ".\jinclude.h"\ + ".\jmorecfg.h"\ + ".\jpegint.h"\ + ".\jpeglib.h"\ + + +.\jccolor.c : \ + ".\jconfig.h"\ + ".\jerror.h"\ + ".\jinclude.h"\ + ".\jmorecfg.h"\ + ".\jpegint.h"\ + ".\jpeglib.h"\ + + +.\jcdctmgr.c : \ + ".\jconfig.h"\ + ".\jdct.h"\ + ".\jerror.h"\ + ".\jinclude.h"\ + ".\jmorecfg.h"\ + ".\jpegint.h"\ + ".\jpeglib.h"\ + + +.\jchuff.c : \ + ".\jconfig.h"\ + ".\jerror.h"\ + ".\jinclude.h"\ + ".\jmorecfg.h"\ + ".\jpegint.h"\ + ".\jpeglib.h"\ + + +.\jcinit.c : \ + ".\jconfig.h"\ + ".\jerror.h"\ + ".\jinclude.h"\ + ".\jmorecfg.h"\ + ".\jpegint.h"\ + ".\jpeglib.h"\ + + +.\jcmainct.c : \ + ".\jconfig.h"\ + ".\jerror.h"\ + ".\jinclude.h"\ + ".\jmorecfg.h"\ + ".\jpegint.h"\ + ".\jpeglib.h"\ + + +.\jcmarker.c : \ + ".\jconfig.h"\ + ".\jerror.h"\ + ".\jinclude.h"\ + ".\jmorecfg.h"\ + ".\jpegint.h"\ + ".\jpeglib.h"\ + + +.\jcmaster.c : \ + ".\jconfig.h"\ + ".\jerror.h"\ + ".\jinclude.h"\ + ".\jmorecfg.h"\ + ".\jpegint.h"\ + ".\jpeglib.h"\ + + +.\jcomapi.c : \ + ".\jconfig.h"\ + ".\jerror.h"\ + ".\jinclude.h"\ + ".\jmorecfg.h"\ + ".\jpegint.h"\ + ".\jpeglib.h"\ + + +.\jcparam.c : \ + ".\jconfig.h"\ + ".\jerror.h"\ + ".\jinclude.h"\ + ".\jmorecfg.h"\ + ".\jpegint.h"\ + ".\jpeglib.h"\ + + +.\jcprepct.c : \ + ".\jconfig.h"\ + ".\jerror.h"\ + ".\jinclude.h"\ + ".\jmorecfg.h"\ + ".\jpegint.h"\ + ".\jpeglib.h"\ + + +.\jcsample.c : \ + ".\jconfig.h"\ + ".\jerror.h"\ + ".\jinclude.h"\ + ".\jmorecfg.h"\ + ".\jpegint.h"\ + ".\jpeglib.h"\ + + +.\jctrans.c : \ + ".\jconfig.h"\ + ".\jerror.h"\ + ".\jinclude.h"\ + ".\jmorecfg.h"\ + ".\jpegint.h"\ + ".\jpeglib.h"\ + + +.\jdapimin.c : \ + ".\jconfig.h"\ + ".\jerror.h"\ + ".\jinclude.h"\ + ".\jmorecfg.h"\ + ".\jpegint.h"\ + ".\jpeglib.h"\ + + +.\jdapistd.c : \ + ".\jconfig.h"\ + ".\jerror.h"\ + ".\jinclude.h"\ + ".\jmorecfg.h"\ + ".\jpegint.h"\ + ".\jpeglib.h"\ + + +.\jdarith.c : \ + ".\jconfig.h"\ + ".\jerror.h"\ + ".\jinclude.h"\ + ".\jmorecfg.h"\ + ".\jpegint.h"\ + ".\jpeglib.h"\ + + +.\jdatadst.c : \ + ".\jconfig.h"\ + ".\jerror.h"\ + ".\jinclude.h"\ + ".\jmorecfg.h"\ + ".\jpeglib.h"\ + + +.\jdatasrc.c : \ + ".\jconfig.h"\ + ".\jerror.h"\ + ".\jinclude.h"\ + ".\jmorecfg.h"\ + ".\jpeglib.h"\ + + +.\jdcoefct.c : \ + ".\jconfig.h"\ + ".\jerror.h"\ + ".\jinclude.h"\ + ".\jmorecfg.h"\ + ".\jpegint.h"\ + ".\jpeglib.h"\ + + +.\jdcolor.c : \ + ".\jconfig.h"\ + ".\jerror.h"\ + ".\jinclude.h"\ + ".\jmorecfg.h"\ + ".\jpegint.h"\ + ".\jpeglib.h"\ + + +.\jddctmgr.c : \ + ".\jconfig.h"\ + ".\jdct.h"\ + ".\jerror.h"\ + ".\jinclude.h"\ + ".\jmorecfg.h"\ + ".\jpegint.h"\ + ".\jpeglib.h"\ + + +.\jdhuff.c : \ + ".\jconfig.h"\ + ".\jerror.h"\ + ".\jinclude.h"\ + ".\jmorecfg.h"\ + ".\jpegint.h"\ + ".\jpeglib.h"\ + + +.\jdinput.c : \ + ".\jconfig.h"\ + ".\jerror.h"\ + ".\jinclude.h"\ + ".\jmorecfg.h"\ + ".\jpegint.h"\ + ".\jpeglib.h"\ + + +.\jdmainct.c : \ + ".\jconfig.h"\ + ".\jerror.h"\ + ".\jinclude.h"\ + ".\jmorecfg.h"\ + ".\jpegint.h"\ + ".\jpeglib.h"\ + + +.\jdmarker.c : \ + ".\jconfig.h"\ + ".\jerror.h"\ + ".\jinclude.h"\ + ".\jmorecfg.h"\ + ".\jpegint.h"\ + ".\jpeglib.h"\ + + +.\jdmaster.c : \ + ".\jconfig.h"\ + ".\jerror.h"\ + ".\jinclude.h"\ + ".\jmorecfg.h"\ + ".\jpegint.h"\ + ".\jpeglib.h"\ + + +.\jdmerge.c : \ + ".\jconfig.h"\ + ".\jerror.h"\ + ".\jinclude.h"\ + ".\jmorecfg.h"\ + ".\jpegint.h"\ + ".\jpeglib.h"\ + + +.\jdpostct.c : \ + ".\jconfig.h"\ + ".\jerror.h"\ + ".\jinclude.h"\ + ".\jmorecfg.h"\ + ".\jpegint.h"\ + ".\jpeglib.h"\ + + +.\jdsample.c : \ + ".\jconfig.h"\ + ".\jerror.h"\ + ".\jinclude.h"\ + ".\jmorecfg.h"\ + ".\jpegint.h"\ + ".\jpeglib.h"\ + + +.\jdtrans.c : \ + ".\jconfig.h"\ + ".\jerror.h"\ + ".\jinclude.h"\ + ".\jmorecfg.h"\ + ".\jpegint.h"\ + ".\jpeglib.h"\ + + +.\jerror.c : \ + ".\jconfig.h"\ + ".\jerror.h"\ + ".\jinclude.h"\ + ".\jmorecfg.h"\ + ".\jpeglib.h"\ + ".\jversion.h"\ + + +.\jfdctflt.c : \ + ".\jconfig.h"\ + ".\jdct.h"\ + ".\jerror.h"\ + ".\jinclude.h"\ + ".\jmorecfg.h"\ + ".\jpegint.h"\ + ".\jpeglib.h"\ + + +.\jfdctfst.c : \ + ".\jconfig.h"\ + ".\jdct.h"\ + ".\jerror.h"\ + ".\jinclude.h"\ + ".\jmorecfg.h"\ + ".\jpegint.h"\ + ".\jpeglib.h"\ + + +.\jfdctint.c : \ + ".\jconfig.h"\ + ".\jdct.h"\ + ".\jerror.h"\ + ".\jinclude.h"\ + ".\jmorecfg.h"\ + ".\jpegint.h"\ + ".\jpeglib.h"\ + + +.\jidctflt.c : \ + ".\jconfig.h"\ + ".\jdct.h"\ + ".\jerror.h"\ + ".\jinclude.h"\ + ".\jmorecfg.h"\ + ".\jpegint.h"\ + ".\jpeglib.h"\ + + +.\jidctfst.c : \ + ".\jconfig.h"\ + ".\jdct.h"\ + ".\jerror.h"\ + ".\jinclude.h"\ + ".\jmorecfg.h"\ + ".\jpegint.h"\ + ".\jpeglib.h"\ + + +.\jidctint.c : \ + ".\jconfig.h"\ + ".\jdct.h"\ + ".\jerror.h"\ + ".\jinclude.h"\ + ".\jmorecfg.h"\ + ".\jpegint.h"\ + ".\jpeglib.h"\ + + +.\jmemmgr.c : \ + ".\jconfig.h"\ + ".\jerror.h"\ + ".\jinclude.h"\ + ".\jmemsys.h"\ + ".\jmorecfg.h"\ + ".\jpegint.h"\ + ".\jpeglib.h"\ + + +.\jmemnobs.c : \ + ".\jconfig.h"\ + ".\jerror.h"\ + ".\jinclude.h"\ + ".\jmemsys.h"\ + ".\jmorecfg.h"\ + ".\jpegint.h"\ + ".\jpeglib.h"\ + + +.\jquant1.c : \ + ".\jconfig.h"\ + ".\jerror.h"\ + ".\jinclude.h"\ + ".\jmorecfg.h"\ + ".\jpegint.h"\ + ".\jpeglib.h"\ + + +.\jquant2.c : \ + ".\jconfig.h"\ + ".\jerror.h"\ + ".\jinclude.h"\ + ".\jmorecfg.h"\ + ".\jpegint.h"\ + ".\jpeglib.h"\ + + +.\jutils.c : \ + ".\jconfig.h"\ + ".\jerror.h"\ + ".\jinclude.h"\ + ".\jmorecfg.h"\ + ".\jpegint.h"\ + ".\jpeglib.h"\ + diff --git a/jpeg/makejdsp.vc6 b/jpeg/makejdsp.vc6 new file mode 100644 index 0000000..2576fc2 --- /dev/null +++ b/jpeg/makejdsp.vc6 @@ -0,0 +1,285 @@ +# Microsoft Developer Studio Project File - Name="jpeg" - Package Owner=<4> +# Microsoft Developer Studio Generated Build File, Format Version 6.00 +# ** NICHT BEARBEITEN ** + +# TARGTYPE "Win32 (x86) Static Library" 0x0104 + +CFG=jpeg - Win32 +!MESSAGE Dies ist kein gültiges Makefile. Zum Erstellen dieses Projekts mit NMAKE +!MESSAGE verwenden Sie den Befehl "Makefile exportieren" und führen Sie den Befehl +!MESSAGE +!MESSAGE NMAKE /f "jpeg.mak". +!MESSAGE +!MESSAGE Sie können beim Ausführen von NMAKE eine Konfiguration angeben +!MESSAGE durch Definieren des Makros CFG in der Befehlszeile. Zum Beispiel: +!MESSAGE +!MESSAGE NMAKE /f "jpeg.mak" CFG="jpeg - Win32" +!MESSAGE +!MESSAGE Für die Konfiguration stehen zur Auswahl: +!MESSAGE +!MESSAGE "jpeg - Win32" (basierend auf "Win32 (x86) Static Library") +!MESSAGE + +# Begin Project +# PROP AllowPerConfigDependencies 0 +# PROP Scc_ProjName "" +# PROP Scc_LocalPath "" +CPP=cl.exe +RSC=rc.exe +# PROP BASE Use_MFC 0 +# PROP BASE Use_Debug_Libraries 0 +# PROP BASE Output_Dir ".\Release" +# PROP BASE Intermediate_Dir ".\Release" +# PROP BASE Target_Dir "" +# PROP Use_MFC 0 +# PROP Use_Debug_Libraries 0 +# PROP Output_Dir ".\Release" +# PROP Intermediate_Dir ".\Release" +# PROP Target_Dir "" +# ADD BASE CPP /nologo /W3 /GX /O2 /D "WIN32" /D "NDEBUG" /D "_WINDOWS" /YX /c +# ADD CPP /nologo /G6 /MT /W3 /GX /Ox /Oa /Ob2 /D "WIN32" /D "NDEBUG" /D "_WINDOWS" /YX /FD /c +# ADD BASE RSC /l 0x407 +# ADD RSC /l 0x407 +BSC32=bscmake.exe +# ADD BASE BSC32 /nologo +# ADD BSC32 /nologo +LIB32=link.exe -lib +# ADD BASE LIB32 /nologo +# ADD LIB32 /nologo +# Begin Target + +# Name "jpeg - Win32" +# Begin Group "Quellcodedateien" + +# PROP Default_Filter "cpp;c;cxx;rc;def;r;odl;idl;hpj;bat;for;f90" +# Begin Source File + +SOURCE=.\jaricom.c +# End Source File +# Begin Source File + +SOURCE=.\jcapimin.c +# End Source File +# Begin Source File + +SOURCE=.\jcapistd.c +# End Source File +# Begin Source File + +SOURCE=.\jcarith.c +# End Source File +# Begin Source File + +SOURCE=.\jccoefct.c +# End Source File +# Begin Source File + +SOURCE=.\jccolor.c +# End Source File +# Begin Source File + +SOURCE=.\jcdctmgr.c +# End Source File +# Begin Source File + +SOURCE=.\jchuff.c +# End Source File +# Begin Source File + +SOURCE=.\jcinit.c +# End Source File +# Begin Source File + +SOURCE=.\jcmainct.c +# End Source File +# Begin Source File + +SOURCE=.\jcmarker.c +# End Source File +# Begin Source File + +SOURCE=.\jcmaster.c +# End Source File +# Begin Source File + +SOURCE=.\jcomapi.c +# End Source File +# Begin Source File + +SOURCE=.\jcparam.c +# End Source File +# Begin Source File + +SOURCE=.\jcprepct.c +# End Source File +# Begin Source File + +SOURCE=.\jcsample.c +# End Source File +# Begin Source File + +SOURCE=.\jctrans.c +# End Source File +# Begin Source File + +SOURCE=.\jdapimin.c +# End Source File +# Begin Source File + +SOURCE=.\jdapistd.c +# End Source File +# Begin Source File + +SOURCE=.\jdarith.c +# End Source File +# Begin Source File + +SOURCE=.\jdatadst.c +# End Source File +# Begin Source File + +SOURCE=.\jdatasrc.c +# End Source File +# Begin Source File + +SOURCE=.\jdcoefct.c +# End Source File +# Begin Source File + +SOURCE=.\jdcolor.c +# End Source File +# Begin Source File + +SOURCE=.\jddctmgr.c +# End Source File +# Begin Source File + +SOURCE=.\jdhuff.c +# End Source File +# Begin Source File + +SOURCE=.\jdinput.c +# End Source File +# Begin Source File + +SOURCE=.\jdmainct.c +# End Source File +# Begin Source File + +SOURCE=.\jdmarker.c +# End Source File +# Begin Source File + +SOURCE=.\jdmaster.c +# End Source File +# Begin Source File + +SOURCE=.\jdmerge.c +# End Source File +# Begin Source File + +SOURCE=.\jdpostct.c +# End Source File +# Begin Source File + +SOURCE=.\jdsample.c +# End Source File +# Begin Source File + +SOURCE=.\jdtrans.c +# End Source File +# Begin Source File + +SOURCE=.\jerror.c +# End Source File +# Begin Source File + +SOURCE=.\jfdctflt.c +# End Source File +# Begin Source File + +SOURCE=.\jfdctfst.c +# End Source File +# Begin Source File + +SOURCE=.\jfdctint.c +# End Source File +# Begin Source File + +SOURCE=.\jidctflt.c +# End Source File +# Begin Source File + +SOURCE=.\jidctfst.c +# End Source File +# Begin Source File + +SOURCE=.\jidctint.c +# End Source File +# Begin Source File + +SOURCE=.\jmemmgr.c +# End Source File +# Begin Source File + +SOURCE=.\jmemnobs.c +# End Source File +# Begin Source File + +SOURCE=.\jquant1.c +# End Source File +# Begin Source File + +SOURCE=.\jquant2.c +# End Source File +# Begin Source File + +SOURCE=.\jutils.c +# End Source File +# End Group +# Begin Group "Header-Dateien" + +# PROP Default_Filter "h;hpp;hxx;hm;inl;fi;fd" +# Begin Source File + +SOURCE=.\jconfig.h +# End Source File +# Begin Source File + +SOURCE=.\jdct.h +# End Source File +# Begin Source File + +SOURCE=.\jerror.h +# End Source File +# Begin Source File + +SOURCE=.\jinclude.h +# End Source File +# Begin Source File + +SOURCE=.\jmemsys.h +# End Source File +# Begin Source File + +SOURCE=.\jmorecfg.h +# End Source File +# Begin Source File + +SOURCE=.\jpegint.h +# End Source File +# Begin Source File + +SOURCE=.\jpeglib.h +# End Source File +# Begin Source File + +SOURCE=.\jversion.h +# End Source File +# End Group +# Begin Group "Ressourcendateien" + +# PROP Default_Filter "ico;cur;bmp;dlg;rc2;rct;bin;cnt;rtf;gif;jpg;jpeg;jpe" +# End Group +# End Target +# End Project diff --git a/jpeg/makejdsw.vc6 b/jpeg/makejdsw.vc6 new file mode 100644 index 0000000..8913f62 --- /dev/null +++ b/jpeg/makejdsw.vc6 @@ -0,0 +1,29 @@ +Microsoft Developer Studio Workspace File, Format Version 6.00 +# WARNUNG: DIESE ARBEITSBEREICHSDATEI DARF NICHT BEARBEITET ODER GELÖSCHT WERDEN! + +############################################################################### + +Project: "jpeg"=".\jpeg.dsp" - Package Owner=<4> + +Package=<5> +{{{ +}}} + +Package=<4> +{{{ +}}} + +############################################################################### + +Global: + +Package=<5> +{{{ +}}} + +Package=<3> +{{{ +}}} + +############################################################################### + diff --git a/jpeg/makejfil.v10 b/jpeg/makejfil.v10 new file mode 100644 index 0000000..5accea2 --- /dev/null +++ b/jpeg/makejfil.v10 @@ -0,0 +1,186 @@ + + + + + {4FC737F1-C7A5-4376-A066-2A32D752A2FF} + cpp;c;cc;cxx;def;odl;idl;hpj;bat;asm;asmx + + + {93995380-89BD-4b04-88EB-625FBE52EBFB} + h;hpp;hxx;hm;inl;inc;xsd + + + {67DA6AB6-F800-4c08-8B7A-83BB121AAD01} + rc;ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe;resx;tiff;tif;png;wav;mfcribbon-ms + + + + + Header Files + + + Header Files + + + Header Files + + + Header Files + + + Header Files + + + Header Files + + + Header Files + + + Header Files + + + Header Files + + + + + Source Files + + + Source Files + + + Source Files + + + Source Files + + + Source Files + + + Source Files + + + Source Files + + + Source Files + + + Source Files + + + Source Files + + + Source Files + + + Source Files + + + Source Files + + + Source Files + + + Source Files + + + Source Files + + + Source Files + + + Source Files + + + Source Files + + + Source Files + + + Source Files + + + Source Files + + + Source Files + + + Source Files + + + Source Files + + + Source Files + + + Source Files + + + Source Files + + + Source Files + + + Source Files + + + Source Files + + + Source Files + + + Source Files + + + Source Files + + + Source Files + + + Source Files + + + Source Files + + + Source Files + + + Source Files + + + Source Files + + + Source Files + + + Source Files + + + Source Files + + + Source Files + + + Source Files + + + Source Files + + + \ No newline at end of file diff --git a/jpeg/makejmak.vc6 b/jpeg/makejmak.vc6 new file mode 100644 index 0000000..88a4eb3 --- /dev/null +++ b/jpeg/makejmak.vc6 @@ -0,0 +1,425 @@ +# Microsoft Developer Studio Generated NMAKE File, Based on jpeg.dsp +!IF "$(CFG)" == "" +CFG=jpeg - Win32 +!MESSAGE Keine Konfiguration angegeben. jpeg - Win32 wird als Standard verwendet. +!ENDIF + +!IF "$(CFG)" != "jpeg - Win32" +!MESSAGE Ungltige Konfiguration "$(CFG)" angegeben. +!MESSAGE Sie k”nnen beim Ausfhren von NMAKE eine Konfiguration angeben +!MESSAGE durch Definieren des Makros CFG in der Befehlszeile. Zum Beispiel: +!MESSAGE +!MESSAGE NMAKE /f "jpeg.mak" CFG="jpeg - Win32" +!MESSAGE +!MESSAGE Fr die Konfiguration stehen zur Auswahl: +!MESSAGE +!MESSAGE "jpeg - Win32" (basierend auf "Win32 (x86) Static Library") +!MESSAGE +!ERROR Eine ungltige Konfiguration wurde angegeben. +!ENDIF + +!IF "$(OS)" == "Windows_NT" +NULL= +!ELSE +NULL=nul +!ENDIF + +OUTDIR=.\Release +INTDIR=.\Release +# Begin Custom Macros +OutDir=.\Release +# End Custom Macros + +ALL : "$(OUTDIR)\jpeg.lib" + + +CLEAN : + -@erase "$(INTDIR)\jaricom.obj" + -@erase "$(INTDIR)\jcapimin.obj" + -@erase "$(INTDIR)\jcapistd.obj" + -@erase "$(INTDIR)\jcarith.obj" + -@erase "$(INTDIR)\jccoefct.obj" + -@erase "$(INTDIR)\jccolor.obj" + -@erase "$(INTDIR)\jcdctmgr.obj" + -@erase "$(INTDIR)\jchuff.obj" + -@erase "$(INTDIR)\jcinit.obj" + -@erase "$(INTDIR)\jcmainct.obj" + -@erase "$(INTDIR)\jcmarker.obj" + -@erase "$(INTDIR)\jcmaster.obj" + -@erase "$(INTDIR)\jcomapi.obj" + -@erase "$(INTDIR)\jcparam.obj" + -@erase 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-@erase "$(INTDIR)\jquant1.obj" + -@erase "$(INTDIR)\jquant2.obj" + -@erase "$(INTDIR)\jutils.obj" + -@erase "$(INTDIR)\vc60.idb" + -@erase "$(OUTDIR)\jpeg.lib" + +"$(OUTDIR)" : + if not exist "$(OUTDIR)/$(NULL)" mkdir "$(OUTDIR)" + +CPP=cl.exe +CPP_PROJ=/nologo /G6 /MT /W3 /GX /Ox /Oa /Ob2 /D "WIN32" /D "NDEBUG" /D "_WINDOWS" /Fp"$(INTDIR)\jpeg.pch" /YX /Fo"$(INTDIR)\\" /Fd"$(INTDIR)\\" /FD /c + +.c{$(INTDIR)}.obj:: + $(CPP) @<< + $(CPP_PROJ) $< +<< + +.cpp{$(INTDIR)}.obj:: + $(CPP) @<< + $(CPP_PROJ) $< +<< + +.cxx{$(INTDIR)}.obj:: + $(CPP) @<< + $(CPP_PROJ) $< +<< + +.c{$(INTDIR)}.sbr:: + $(CPP) @<< + $(CPP_PROJ) $< +<< + +.cpp{$(INTDIR)}.sbr:: + $(CPP) @<< + $(CPP_PROJ) $< +<< + +.cxx{$(INTDIR)}.sbr:: + $(CPP) @<< + $(CPP_PROJ) $< +<< + +RSC=rc.exe +BSC32=bscmake.exe +BSC32_FLAGS=/nologo /o"$(OUTDIR)\jpeg.bsc" +BSC32_SBRS= \ + +LIB32=link.exe -lib +LIB32_FLAGS=/nologo /out:"$(OUTDIR)\jpeg.lib" +LIB32_OBJS= \ + "$(INTDIR)\jaricom.obj" \ + "$(INTDIR)\jcapimin.obj" \ + "$(INTDIR)\jcapistd.obj" \ + "$(INTDIR)\jcarith.obj" \ + "$(INTDIR)\jccoefct.obj" \ + "$(INTDIR)\jccolor.obj" \ + "$(INTDIR)\jcdctmgr.obj" \ + "$(INTDIR)\jchuff.obj" \ + "$(INTDIR)\jcinit.obj" \ + "$(INTDIR)\jcmainct.obj" \ + "$(INTDIR)\jcmarker.obj" \ + "$(INTDIR)\jcmaster.obj" \ + "$(INTDIR)\jcomapi.obj" \ + "$(INTDIR)\jcparam.obj" \ + "$(INTDIR)\jcprepct.obj" \ + "$(INTDIR)\jcsample.obj" \ + "$(INTDIR)\jctrans.obj" \ + "$(INTDIR)\jdapimin.obj" \ + "$(INTDIR)\jdapistd.obj" \ + "$(INTDIR)\jdarith.obj" \ + "$(INTDIR)\jdatadst.obj" \ + "$(INTDIR)\jdatasrc.obj" \ + "$(INTDIR)\jdcoefct.obj" \ + "$(INTDIR)\jdcolor.obj" \ + "$(INTDIR)\jddctmgr.obj" \ + "$(INTDIR)\jdhuff.obj" \ + "$(INTDIR)\jdinput.obj" \ + "$(INTDIR)\jdmainct.obj" \ + "$(INTDIR)\jdmarker.obj" \ + "$(INTDIR)\jdmaster.obj" \ + "$(INTDIR)\jdmerge.obj" \ + "$(INTDIR)\jdpostct.obj" \ + "$(INTDIR)\jdsample.obj" \ + "$(INTDIR)\jdtrans.obj" \ + "$(INTDIR)\jerror.obj" \ + "$(INTDIR)\jfdctflt.obj" \ + "$(INTDIR)\jfdctfst.obj" \ + 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$(SOURCE) "$(INTDIR)" + + +SOURCE=.\jcdctmgr.c + +"$(INTDIR)\jcdctmgr.obj" : $(SOURCE) "$(INTDIR)" + + +SOURCE=.\jchuff.c + +"$(INTDIR)\jchuff.obj" : $(SOURCE) "$(INTDIR)" + + +SOURCE=.\jcinit.c + +"$(INTDIR)\jcinit.obj" : $(SOURCE) "$(INTDIR)" + + +SOURCE=.\jcmainct.c + +"$(INTDIR)\jcmainct.obj" : $(SOURCE) "$(INTDIR)" + + +SOURCE=.\jcmarker.c + +"$(INTDIR)\jcmarker.obj" : $(SOURCE) "$(INTDIR)" + + +SOURCE=.\jcmaster.c + +"$(INTDIR)\jcmaster.obj" : $(SOURCE) "$(INTDIR)" + + +SOURCE=.\jcomapi.c + +"$(INTDIR)\jcomapi.obj" : $(SOURCE) "$(INTDIR)" + + +SOURCE=.\jcparam.c + +"$(INTDIR)\jcparam.obj" : $(SOURCE) "$(INTDIR)" + + +SOURCE=.\jcprepct.c + +"$(INTDIR)\jcprepct.obj" : $(SOURCE) "$(INTDIR)" + + +SOURCE=.\jcsample.c + +"$(INTDIR)\jcsample.obj" : $(SOURCE) "$(INTDIR)" + + +SOURCE=.\jctrans.c + +"$(INTDIR)\jctrans.obj" : $(SOURCE) "$(INTDIR)" + + +SOURCE=.\jdapimin.c + +"$(INTDIR)\jdapimin.obj" : $(SOURCE) "$(INTDIR)" + + +SOURCE=.\jdapistd.c + +"$(INTDIR)\jdapistd.obj" : $(SOURCE) "$(INTDIR)" + + +SOURCE=.\jdarith.c + +"$(INTDIR)\jdarith.obj" : $(SOURCE) "$(INTDIR)" + + +SOURCE=.\jdatadst.c + +"$(INTDIR)\jdatadst.obj" : $(SOURCE) "$(INTDIR)" + + +SOURCE=.\jdatasrc.c + +"$(INTDIR)\jdatasrc.obj" : $(SOURCE) "$(INTDIR)" + + +SOURCE=.\jdcoefct.c + +"$(INTDIR)\jdcoefct.obj" : $(SOURCE) "$(INTDIR)" + + +SOURCE=.\jdcolor.c + +"$(INTDIR)\jdcolor.obj" : $(SOURCE) "$(INTDIR)" + + +SOURCE=.\jddctmgr.c + +"$(INTDIR)\jddctmgr.obj" : $(SOURCE) "$(INTDIR)" + + +SOURCE=.\jdhuff.c + +"$(INTDIR)\jdhuff.obj" : $(SOURCE) "$(INTDIR)" + + +SOURCE=.\jdinput.c + +"$(INTDIR)\jdinput.obj" : $(SOURCE) "$(INTDIR)" + + +SOURCE=.\jdmainct.c + +"$(INTDIR)\jdmainct.obj" : $(SOURCE) "$(INTDIR)" + + +SOURCE=.\jdmarker.c + +"$(INTDIR)\jdmarker.obj" : $(SOURCE) "$(INTDIR)" + + +SOURCE=.\jdmaster.c + +"$(INTDIR)\jdmaster.obj" : $(SOURCE) "$(INTDIR)" + + +SOURCE=.\jdmerge.c + +"$(INTDIR)\jdmerge.obj" : $(SOURCE) "$(INTDIR)" + + +SOURCE=.\jdpostct.c + +"$(INTDIR)\jdpostct.obj" : $(SOURCE) "$(INTDIR)" + + +SOURCE=.\jdsample.c + +"$(INTDIR)\jdsample.obj" : $(SOURCE) "$(INTDIR)" + + +SOURCE=.\jdtrans.c + +"$(INTDIR)\jdtrans.obj" : $(SOURCE) "$(INTDIR)" + + +SOURCE=.\jerror.c + +"$(INTDIR)\jerror.obj" : $(SOURCE) "$(INTDIR)" + + +SOURCE=.\jfdctflt.c + +"$(INTDIR)\jfdctflt.obj" : $(SOURCE) "$(INTDIR)" + + +SOURCE=.\jfdctfst.c + +"$(INTDIR)\jfdctfst.obj" : $(SOURCE) "$(INTDIR)" + + +SOURCE=.\jfdctint.c + +"$(INTDIR)\jfdctint.obj" : $(SOURCE) "$(INTDIR)" + + +SOURCE=.\jidctflt.c + +"$(INTDIR)\jidctflt.obj" : $(SOURCE) "$(INTDIR)" + + +SOURCE=.\jidctfst.c + +"$(INTDIR)\jidctfst.obj" : $(SOURCE) "$(INTDIR)" + + +SOURCE=.\jidctint.c + +"$(INTDIR)\jidctint.obj" : $(SOURCE) "$(INTDIR)" + + +SOURCE=.\jmemmgr.c + +"$(INTDIR)\jmemmgr.obj" : $(SOURCE) "$(INTDIR)" + + +SOURCE=.\jmemnobs.c + +"$(INTDIR)\jmemnobs.obj" : $(SOURCE) "$(INTDIR)" + + +SOURCE=.\jquant1.c + +"$(INTDIR)\jquant1.obj" : $(SOURCE) "$(INTDIR)" + + +SOURCE=.\jquant2.c + +"$(INTDIR)\jquant2.obj" : $(SOURCE) "$(INTDIR)" + + +SOURCE=.\jutils.c + +"$(INTDIR)\jutils.obj" : $(SOURCE) "$(INTDIR)" + + + +!ENDIF + diff --git a/jpeg/makejsln.v10 b/jpeg/makejsln.v10 new file mode 100644 index 0000000..292de1f --- /dev/null +++ b/jpeg/makejsln.v10 @@ -0,0 +1,17 @@ + +Microsoft Visual Studio Solution File, Format Version 11.00 +# Visual C++ Express 2010 +Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "jpeg", "jpeg.vcxproj", "{019DBD2A-273D-4BA4-BF86-B5EFE2ED76B1}" +EndProject +Global + GlobalSection(SolutionConfigurationPlatforms) = preSolution + Release|Win32 = Release|Win32 + EndGlobalSection + GlobalSection(ProjectConfigurationPlatforms) = postSolution + {019DBD2A-273D-4BA4-BF86-B5EFE2ED76B1}.Release|Win32.ActiveCfg = Release|Win32 + {019DBD2A-273D-4BA4-BF86-B5EFE2ED76B1}.Release|Win32.Build.0 = Release|Win32 + EndGlobalSection + GlobalSection(SolutionProperties) = preSolution + HideSolutionNode = FALSE + EndGlobalSection +EndGlobal diff --git a/jpeg/makejvcx.v10 b/jpeg/makejvcx.v10 new file mode 100644 index 0000000..c7a898e --- /dev/null +++ b/jpeg/makejvcx.v10 @@ -0,0 +1,112 @@ + + + + + Release + Win32 + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + Disabled + false + + + + + {019DBD2A-273D-4BA4-BF86-B5EFE2ED76B1} + Win32Proj + jpeg + + + + StaticLibrary + false + true + Unicode + + + + + + + + + + + + Level3 + NotUsing + Full + true + false + WIN32;NDEBUG;_LIB;_CRT_SECURE_NO_WARNINGS + true + true + + + Windows + true + true + true + + + + + + \ No newline at end of file diff --git a/jpeg/makeproj.mac b/jpeg/makeproj.mac new file mode 100644 index 0000000..e5b5102 --- /dev/null +++ b/jpeg/makeproj.mac @@ -0,0 +1,213 @@ +-- +-- makeproj.mac +-- +-- This AppleScript builds Code Warrior PRO Release 2 project files for the +-- libjpeg library as well as the test programs 'cjpeg', 'djpeg', 'jpegtran'. +-- (We'd distribute real project files, except they're not text +-- and would create maintenance headaches.) +-- +-- The script then compiles and links the library and the test programs. +-- NOTE: if you haven't already created a 'jconfig.h' file, the script +-- automatically copies 'jconfig.mac' to 'jconfig.h'. +-- +-- To use this script, you must have AppleScript 1.1 or later installed +-- and a suitable AppleScript editor like Script Editor or Script Debugger +-- (http://www.latenightsw.com). Open this file with your AppleScript +-- editor and execute the "run" command to build the projects. +-- +-- Thanks to Dan Sears and Don Agro for this script. +-- Questions about this script can be addressed to dogpark@interlog.com +-- + +on run + + choose folder with prompt ">>> Select IJG source folder <<<" + set ijg_folder to result + + choose folder with prompt ">>> Select MetroWerks folder <<<" + set cw_folder to result + + -- if jconfig.h doesn't already exist, copy jconfig.mac + + tell application "Finder" + if not (exists file "jconfig.h" of ijg_folder) then + duplicate {file "jconfig.mac" of folder ijg_folder} + select file "jconfig.mac copy" of folder ijg_folder + set name of selection to "jconfig.h" + end if + end tell + + tell application "CodeWarrior IDE 2.1" + with timeout of 10000 seconds + + -- create libjpeg project + + activate + Create Project (ijg_folder as string) & "libjpeg.proj" + Set Preferences of panel "Target Settings" to {Target Name:"libjpeg"} + Set Preferences of panel "PPC Project" to {File Name:"libjpeg"} + Set Preferences of panel "Target Settings" to {Linker:"MacOS PPC Linker"} + Set Preferences of panel "PPC Project" to {Project Type:library} + Set Preferences of panel "C/C++ Compiler" to {ANSI Strict:true} + Set Preferences of panel "C/C++ Compiler" to {Enums Always Ints:true} + Set Preferences of panel "PPC Codegen" to {Struct Alignment:PowerPC} + Set Preferences of panel "PPC Linker" to {Generate SYM File:false} + + Add Files (ijg_folder as string) & "jaricom.c" To Segment 1 + Add Files (ijg_folder as string) & "jcapimin.c" To Segment 1 + Add Files (ijg_folder as string) & "jcapistd.c" To Segment 1 + Add Files (ijg_folder as string) & "jcarith.c" To Segment 1 + Add Files (ijg_folder as string) & "jctrans.c" To Segment 1 + Add Files (ijg_folder as string) & "jcparam.c" To Segment 1 + Add Files (ijg_folder as string) & "jdatadst.c" To Segment 1 + Add Files (ijg_folder as string) & "jcinit.c" To Segment 1 + Add Files (ijg_folder as string) & "jcmaster.c" To Segment 1 + Add Files (ijg_folder as string) & "jcmarker.c" To Segment 1 + Add Files (ijg_folder as string) & "jcmainct.c" To Segment 1 + Add Files (ijg_folder as string) & "jcprepct.c" To Segment 1 + Add Files (ijg_folder as string) & "jccoefct.c" To Segment 1 + Add Files (ijg_folder as string) & "jccolor.c" To Segment 1 + Add Files (ijg_folder as string) & "jcsample.c" To Segment 1 + Add Files (ijg_folder as string) & "jchuff.c" To Segment 1 + Add Files (ijg_folder as string) & "jcdctmgr.c" To Segment 1 + Add Files (ijg_folder as string) & "jfdctfst.c" To Segment 1 + Add Files (ijg_folder as string) & "jfdctflt.c" To Segment 1 + Add Files (ijg_folder as string) & "jfdctint.c" To Segment 1 + Add Files (ijg_folder as string) & "jdapimin.c" To Segment 1 + Add Files (ijg_folder as string) & "jdapistd.c" To Segment 1 + Add Files (ijg_folder as string) & "jdarith.c" To Segment 1 + Add Files (ijg_folder as string) & "jdtrans.c" To Segment 1 + Add Files (ijg_folder as string) & "jdatasrc.c" To Segment 1 + Add Files (ijg_folder as string) & "jdmaster.c" To Segment 1 + Add Files (ijg_folder as string) & "jdinput.c" To Segment 1 + Add Files (ijg_folder as string) & "jdmarker.c" To Segment 1 + Add Files (ijg_folder as string) & "jdhuff.c" To Segment 1 + Add Files (ijg_folder as string) & "jdmainct.c" To Segment 1 + Add Files (ijg_folder as string) & "jdcoefct.c" To Segment 1 + Add Files (ijg_folder as string) & "jdpostct.c" To Segment 1 + Add Files (ijg_folder as string) & "jddctmgr.c" To Segment 1 + Add Files (ijg_folder as string) & "jidctfst.c" To Segment 1 + Add Files (ijg_folder as string) & "jidctflt.c" To Segment 1 + Add Files (ijg_folder as string) & "jidctint.c" To Segment 1 + Add Files (ijg_folder as string) & "jdsample.c" To Segment 1 + Add Files (ijg_folder as string) & "jdcolor.c" To Segment 1 + Add Files (ijg_folder as string) & "jquant1.c" To Segment 1 + Add Files (ijg_folder as string) & "jquant2.c" To Segment 1 + Add Files (ijg_folder as string) & "jdmerge.c" To Segment 1 + Add Files (ijg_folder as string) & "jcomapi.c" To Segment 1 + Add Files (ijg_folder as string) & "jutils.c" To Segment 1 + Add Files (ijg_folder as string) & "jerror.c" To Segment 1 + Add Files (ijg_folder as string) & "jmemmgr.c" To Segment 1 + Add Files (ijg_folder as string) & "jmemmac.c" To Segment 1 + + -- compile and link the library + + Make Project + Close Project + + -- create cjpeg project + + activate + Create Project (ijg_folder as string) & "cjpeg.proj" + Set Preferences of panel "Target Settings" to {Target Name:"cjpeg"} + Set Preferences of panel "PPC Project" to {File Name:"cjpeg"} + Set Preferences of panel "Target Settings" to {Linker:"MacOS PPC Linker"} + Set Preferences of panel "C/C++ Compiler" to {ANSI Strict:true} + Set Preferences of panel "C/C++ Compiler" to {Enums Always Ints:true} + Set Preferences of panel "PPC Codegen" to {Struct Alignment:PowerPC} + Set Preferences of panel "PPC Linker" to {Generate SYM File:false} + + Add Files (ijg_folder as string) & "cjpeg.c" To Segment 1 + Add Files (ijg_folder as string) & "rdppm.c" To Segment 1 + Add Files (ijg_folder as string) & "rdgif.c" To Segment 1 + Add Files (ijg_folder as string) & "rdtarga.c" To Segment 1 + Add Files (ijg_folder as string) & "rdrle.c" To Segment 1 + Add Files (ijg_folder as string) & "rdbmp.c" To Segment 1 + Add Files (ijg_folder as string) & "rdswitch.c" To Segment 1 + Add Files (ijg_folder as string) & "cdjpeg.c" To Segment 1 + + Add Files (ijg_folder as string) & "libjpeg" To Segment 2 + + Add Files (cw_folder as string) & "Metrowerks CodeWarrior:Metrowerks Standard Library:MSL C:Bin:MSL C.PPC.Lib" To Segment 3 + Add Files (cw_folder as string) & "Metrowerks CodeWarrior:Metrowerks Standard Library:MSL C:Bin:MSL SIOUX.PPC.Lib" To Segment 3 + Add Files (cw_folder as string) & "Metrowerks CodeWarrior:MacOS Support:Libraries:Runtime:Runtime PPC:MSL RuntimePPC.Lib" To Segment 3 + + Add Files (cw_folder as string) & "Metrowerks CodeWarrior:MacOS Support:Libraries:MacOS Common:InterfaceLib" To Segment 4 + Add Files (cw_folder as string) & "Metrowerks CodeWarrior:MacOS Support:Libraries:MacOS Common:MathLib" To Segment 4 + + -- compile and link cjpeg + + Make Project + Close Project + + -- create djpeg project + + activate + Create Project (ijg_folder as string) & "djpeg.proj" + Set Preferences of panel "Target Settings" to {Target Name:"djpeg"} + Set Preferences of panel "PPC Project" to {File Name:"djpeg"} + Set Preferences of panel "Target Settings" to {Linker:"MacOS PPC Linker"} + Set Preferences of panel "C/C++ Compiler" to {ANSI Strict:true} + Set Preferences of panel "C/C++ Compiler" to {Enums Always Ints:true} + Set Preferences of panel "PPC Codegen" to {Struct Alignment:PowerPC} + Set Preferences of panel "PPC Linker" to {Generate SYM File:false} + + Add Files (ijg_folder as string) & "djpeg.c" To Segment 1 + Add Files (ijg_folder as string) & "wrppm.c" To Segment 1 + Add Files (ijg_folder as string) & "wrgif.c" To Segment 1 + Add Files (ijg_folder as string) & "wrtarga.c" To Segment 1 + Add Files (ijg_folder as string) & "wrrle.c" To Segment 1 + Add Files (ijg_folder as string) & "wrbmp.c" To Segment 1 + Add Files (ijg_folder as string) & "rdcolmap.c" To Segment 1 + Add Files (ijg_folder as string) & "cdjpeg.c" To Segment 1 + + Add Files (ijg_folder as string) & "libjpeg" To Segment 2 + + Add Files (cw_folder as string) & "Metrowerks CodeWarrior:Metrowerks Standard Library:MSL C:Bin:MSL C.PPC.Lib" To Segment 3 + Add Files (cw_folder as string) & "Metrowerks CodeWarrior:Metrowerks Standard Library:MSL C:Bin:MSL SIOUX.PPC.Lib" To Segment 3 + Add Files (cw_folder as string) & "Metrowerks CodeWarrior:MacOS Support:Libraries:Runtime:Runtime PPC:MSL RuntimePPC.Lib" To Segment 3 + + Add Files (cw_folder as string) & "Metrowerks CodeWarrior:MacOS Support:Libraries:MacOS Common:InterfaceLib" To Segment 4 + Add Files (cw_folder as string) & "Metrowerks CodeWarrior:MacOS Support:Libraries:MacOS Common:MathLib" To Segment 4 + + -- compile and link djpeg + + Make Project + Close Project + + -- create jpegtran project + + activate + Create Project (ijg_folder as string) & "jpegtran.proj" + Set Preferences of panel "Target Settings" to {Target Name:"jpegtran"} + Set Preferences of panel "PPC Project" to {File Name:"jpegtran"} + Set Preferences of panel "Target Settings" to {Linker:"MacOS PPC Linker"} + Set Preferences of panel "C/C++ Compiler" to {ANSI Strict:true} + Set Preferences of panel "C/C++ Compiler" to {Enums Always Ints:true} + Set Preferences of panel "PPC Codegen" to {Struct Alignment:PowerPC} + Set Preferences of panel "PPC Linker" to {Generate SYM File:false} + + Add Files (ijg_folder as string) & "jpegtran.c" To Segment 1 + Add Files (ijg_folder as string) & "rdswitch.c" To Segment 1 + Add Files (ijg_folder as string) & "cdjpeg.c" To Segment 1 + Add Files (ijg_folder as string) & "transupp.c" To Segment 1 + + Add Files (ijg_folder as string) & "libjpeg" To Segment 2 + + Add Files (cw_folder as string) & "Metrowerks CodeWarrior:Metrowerks Standard Library:MSL C:Bin:MSL C.PPC.Lib" To Segment 3 + Add Files (cw_folder as string) & "Metrowerks CodeWarrior:Metrowerks Standard Library:MSL C:Bin:MSL SIOUX.PPC.Lib" To Segment 3 + Add Files (cw_folder as string) & "Metrowerks CodeWarrior:MacOS Support:Libraries:Runtime:Runtime PPC:MSL RuntimePPC.Lib" To Segment 3 + + Add Files (cw_folder as string) & "Metrowerks CodeWarrior:MacOS Support:Libraries:MacOS Common:InterfaceLib" To Segment 4 + Add Files (cw_folder as string) & "Metrowerks CodeWarrior:MacOS Support:Libraries:MacOS Common:MathLib" To Segment 4 + + -- compile and link jpegtran + + Make Project + Close Project + + quit + + end timeout + end tell +end run diff --git a/jpeg/makerdep.vc6 b/jpeg/makerdep.vc6 new file mode 100644 index 0000000..d2dac9d --- /dev/null +++ b/jpeg/makerdep.vc6 @@ -0,0 +1,6 @@ +# Microsoft Developer Studio erstellte Abhängigkeitsdatei, einbezogen von rdjpgcom.mak + +.\rdjpgcom.c : \ + ".\jconfig.h"\ + ".\jinclude.h"\ + diff --git a/jpeg/makerdsp.vc6 b/jpeg/makerdsp.vc6 new file mode 100644 index 0000000..6efb442 --- /dev/null +++ b/jpeg/makerdsp.vc6 @@ -0,0 +1,78 @@ +# Microsoft Developer Studio Project File - Name="rdjpgcom" - Package Owner=<4> +# Microsoft Developer Studio Generated Build File, Format Version 6.00 +# ** NICHT BEARBEITEN ** + +# TARGTYPE "Win32 (x86) Console Application" 0x0103 + +CFG=rdjpgcom - Win32 +!MESSAGE Dies ist kein gültiges Makefile. Zum Erstellen dieses Projekts mit NMAKE +!MESSAGE verwenden Sie den Befehl "Makefile exportieren" und führen Sie den Befehl +!MESSAGE +!MESSAGE NMAKE /f "rdjpgcom.mak". +!MESSAGE +!MESSAGE Sie können beim Ausführen von NMAKE eine Konfiguration angeben +!MESSAGE durch Definieren des Makros CFG in der Befehlszeile. Zum Beispiel: +!MESSAGE +!MESSAGE NMAKE /f "rdjpgcom.mak" CFG="rdjpgcom - Win32" +!MESSAGE +!MESSAGE Für die Konfiguration stehen zur Auswahl: +!MESSAGE +!MESSAGE "rdjpgcom - Win32" (basierend auf "Win32 (x86) Console Application") +!MESSAGE + +# Begin Project +# PROP AllowPerConfigDependencies 0 +# PROP Scc_ProjName "" +# PROP Scc_LocalPath "" +CPP=cl.exe +RSC=rc.exe +# PROP BASE Use_MFC 0 +# PROP BASE Use_Debug_Libraries 0 +# PROP BASE Output_Dir ".\rdjpgcom\Release" +# PROP BASE Intermediate_Dir ".\rdjpgcom\Release" +# PROP BASE Target_Dir ".\rdjpgcom" +# PROP Use_MFC 0 +# PROP Use_Debug_Libraries 0 +# PROP Output_Dir ".\rdjpgcom\Release" +# PROP Intermediate_Dir ".\rdjpgcom\Release" +# PROP Ignore_Export_Lib 0 +# PROP Target_Dir ".\rdjpgcom" +# ADD BASE CPP /nologo /W3 /GX /O2 /D "WIN32" /D "NDEBUG" /D "_CONSOLE" /YX /c +# ADD CPP /nologo /G6 /MT /W3 /GX /Ox /Oa /Ob2 /D "WIN32" /D "NDEBUG" /D "_CONSOLE" /YX /FD /c +# ADD BASE RSC /l 0x409 /d "NDEBUG" +# ADD RSC /l 0x409 /d "NDEBUG" +BSC32=bscmake.exe +# ADD BASE BSC32 /nologo +# ADD BSC32 /nologo +LINK32=link.exe +# ADD BASE LINK32 kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib /nologo /subsystem:console /machine:I386 +# ADD LINK32 Release\jpeg.lib kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib /nologo /subsystem:console /machine:I386 +# Begin Target + +# Name "rdjpgcom - Win32" +# Begin Group "Quellcodedateien" + +# PROP Default_Filter "cpp;c;cxx;rc;def;r;odl;idl;hpj;bat;for;f90" +# Begin Source File + +SOURCE=.\rdjpgcom.c +# End Source File +# End Group +# Begin Group "Header-Dateien" + +# PROP Default_Filter "h;hpp;hxx;hm;inl;fi;fd" +# Begin Source File + +SOURCE=.\jconfig.h +# End Source File +# Begin Source File + +SOURCE=.\jinclude.h +# End Source File +# End Group +# Begin Group "Ressourcendateien" + +# PROP Default_Filter "ico;cur;bmp;dlg;rc2;rct;bin;cnt;rtf;gif;jpg;jpeg;jpe" +# End Group +# End Target +# End Project diff --git a/jpeg/makerfil.v10 b/jpeg/makerfil.v10 new file mode 100644 index 0000000..4660d49 --- /dev/null +++ b/jpeg/makerfil.v10 @@ -0,0 +1,30 @@ + + + + + {4FC737F1-C7A5-4376-A066-2A32D752A2FF} + cpp;c;cc;cxx;def;odl;idl;hpj;bat;asm;asmx + + + {93995380-89BD-4b04-88EB-625FBE52EBFB} + h;hpp;hxx;hm;inl;inc;xsd + + + {67DA6AB6-F800-4c08-8B7A-83BB121AAD01} + rc;ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe;resx;tiff;tif;png;wav;mfcribbon-ms + + + + + Header Files + + + Header Files + + + + + Source Files + + + \ No newline at end of file diff --git a/jpeg/makermak.vc6 b/jpeg/makermak.vc6 new file mode 100644 index 0000000..b54ea7d --- /dev/null +++ b/jpeg/makermak.vc6 @@ -0,0 +1,110 @@ +# Microsoft Developer Studio Generated NMAKE File, Based on rdjpgcom.dsp +!IF "$(CFG)" == "" +CFG=rdjpgcom - Win32 +!MESSAGE Keine Konfiguration angegeben. rdjpgcom - Win32 wird als Standard verwendet. +!ENDIF + +!IF "$(CFG)" != "rdjpgcom - Win32" +!MESSAGE Ungltige Konfiguration "$(CFG)" angegeben. +!MESSAGE Sie k”nnen beim Ausfhren von NMAKE eine Konfiguration angeben +!MESSAGE durch Definieren des Makros CFG in der Befehlszeile. Zum Beispiel: +!MESSAGE +!MESSAGE NMAKE /f "rdjpgcom.mak" CFG="rdjpgcom - Win32" +!MESSAGE +!MESSAGE Fr die Konfiguration stehen zur Auswahl: +!MESSAGE +!MESSAGE "rdjpgcom - Win32" (basierend auf "Win32 (x86) Console Application") +!MESSAGE +!ERROR Eine ungltige Konfiguration wurde angegeben. +!ENDIF + +!IF "$(OS)" == "Windows_NT" +NULL= +!ELSE +NULL=nul +!ENDIF + +CPP=cl.exe +RSC=rc.exe +OUTDIR=.\rdjpgcom\Release +INTDIR=.\rdjpgcom\Release +# Begin Custom Macros +OutDir=.\rdjpgcom\Release +# End Custom Macros + +ALL : "$(OUTDIR)\rdjpgcom.exe" + + +CLEAN : + -@erase "$(INTDIR)\rdjpgcom.obj" + -@erase "$(INTDIR)\vc60.idb" + -@erase "$(OUTDIR)\rdjpgcom.exe" + +"$(OUTDIR)" : + if not exist "$(OUTDIR)/$(NULL)" mkdir "$(OUTDIR)" + +BSC32=bscmake.exe +BSC32_FLAGS=/nologo /o"$(OUTDIR)\rdjpgcom.bsc" +BSC32_SBRS= \ + +LINK32=link.exe +LINK32_FLAGS=Release\jpeg.lib kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib /nologo /subsystem:console /incremental:no /pdb:"$(OUTDIR)\rdjpgcom.pdb" /machine:I386 /out:"$(OUTDIR)\rdjpgcom.exe" +LINK32_OBJS= \ + "$(INTDIR)\rdjpgcom.obj" + +"$(OUTDIR)\rdjpgcom.exe" : "$(OUTDIR)" $(DEF_FILE) $(LINK32_OBJS) + $(LINK32) @<< + $(LINK32_FLAGS) $(LINK32_OBJS) +<< + +CPP_PROJ=/nologo /G6 /MT /W3 /GX /Ox /Oa /Ob2 /D "WIN32" /D "NDEBUG" /D "_CONSOLE" /Fp"$(INTDIR)\rdjpgcom.pch" /YX /Fo"$(INTDIR)\\" /Fd"$(INTDIR)\\" /FD /c + +.c{$(INTDIR)}.obj:: + $(CPP) @<< + $(CPP_PROJ) $< +<< + +.cpp{$(INTDIR)}.obj:: + $(CPP) @<< + $(CPP_PROJ) $< +<< + +.cxx{$(INTDIR)}.obj:: + $(CPP) @<< + $(CPP_PROJ) $< +<< + +.c{$(INTDIR)}.sbr:: + $(CPP) @<< + $(CPP_PROJ) $< +<< + +.cpp{$(INTDIR)}.sbr:: + $(CPP) @<< + $(CPP_PROJ) $< +<< + +.cxx{$(INTDIR)}.sbr:: + $(CPP) @<< + $(CPP_PROJ) $< +<< + + +!IF "$(NO_EXTERNAL_DEPS)" != "1" +!IF EXISTS("rdjpgcom.dep") +!INCLUDE "rdjpgcom.dep" +!ELSE +!MESSAGE Warning: cannot find "rdjpgcom.dep" +!ENDIF +!ENDIF + + +!IF "$(CFG)" == "rdjpgcom - Win32" +SOURCE=.\rdjpgcom.c + +"$(INTDIR)\rdjpgcom.obj" : $(SOURCE) "$(INTDIR)" + + + +!ENDIF + diff --git a/jpeg/makervcx.v10 b/jpeg/makervcx.v10 new file mode 100644 index 0000000..f34017f --- /dev/null +++ b/jpeg/makervcx.v10 @@ -0,0 +1,62 @@ + + + + + Release + Win32 + + + + {C81513DB-78DC-46BC-BC98-82E745203976} + Win32Proj + rdjpgcom + + + + Application + false + true + Unicode + + + + + + + + + + false + $(ProjectName)\$(Configuration)\ + $(ProjectName)\$(Configuration)\ + + + + Level3 + NotUsing + Full + true + false + WIN32;NDEBUG;_CONSOLE;_CRT_SECURE_NO_WARNINGS + true + true + 4996 + + + Console + true + true + true + + + + + + + + + + + + + \ No newline at end of file diff --git a/jpeg/maketdep.vc6 b/jpeg/maketdep.vc6 new file mode 100644 index 0000000..acebae9 --- /dev/null +++ b/jpeg/maketdep.vc6 @@ -0,0 +1,43 @@ +# Microsoft Developer Studio erstellte Abhängigkeitsdatei, einbezogen von jpegtran.mak + +.\cdjpeg.c : \ + ".\cderror.h"\ + ".\cdjpeg.h"\ + ".\jconfig.h"\ + ".\jerror.h"\ + ".\jinclude.h"\ + ".\jmorecfg.h"\ + ".\jpeglib.h"\ + + +.\jpegtran.c : \ + ".\cderror.h"\ + ".\cdjpeg.h"\ + ".\jconfig.h"\ + ".\jerror.h"\ + ".\jinclude.h"\ + ".\jmorecfg.h"\ + ".\jpeglib.h"\ + ".\jversion.h"\ + ".\transupp.h"\ + + +.\rdswitch.c : \ + ".\cderror.h"\ + ".\cdjpeg.h"\ + ".\jconfig.h"\ + ".\jerror.h"\ + ".\jinclude.h"\ + ".\jmorecfg.h"\ + ".\jpeglib.h"\ + + +.\transupp.c : \ + ".\jconfig.h"\ + ".\jerror.h"\ + ".\jinclude.h"\ + ".\jmorecfg.h"\ + ".\jpegint.h"\ + ".\jpeglib.h"\ + ".\transupp.h"\ + diff --git a/jpeg/maketdsp.vc6 b/jpeg/maketdsp.vc6 new file mode 100644 index 0000000..42e7312 --- /dev/null +++ b/jpeg/maketdsp.vc6 @@ -0,0 +1,122 @@ +# Microsoft Developer Studio Project File - Name="jpegtran" - Package Owner=<4> +# Microsoft Developer Studio Generated Build File, Format Version 6.00 +# ** NICHT BEARBEITEN ** + +# TARGTYPE "Win32 (x86) Console Application" 0x0103 + +CFG=jpegtran - Win32 +!MESSAGE Dies ist kein gültiges Makefile. Zum Erstellen dieses Projekts mit NMAKE +!MESSAGE verwenden Sie den Befehl "Makefile exportieren" und führen Sie den Befehl +!MESSAGE +!MESSAGE NMAKE /f "jpegtran.mak". +!MESSAGE +!MESSAGE Sie können beim Ausführen von NMAKE eine Konfiguration angeben +!MESSAGE durch Definieren des Makros CFG in der Befehlszeile. Zum Beispiel: +!MESSAGE +!MESSAGE NMAKE /f "jpegtran.mak" CFG="jpegtran - Win32" +!MESSAGE +!MESSAGE Für die Konfiguration stehen zur Auswahl: +!MESSAGE +!MESSAGE "jpegtran - Win32" (basierend auf "Win32 (x86) Console Application") +!MESSAGE + +# Begin Project +# PROP AllowPerConfigDependencies 0 +# PROP Scc_ProjName "" +# PROP Scc_LocalPath "" +CPP=cl.exe +RSC=rc.exe +# PROP BASE Use_MFC 0 +# PROP BASE Use_Debug_Libraries 0 +# PROP BASE Output_Dir ".\jpegtran\Release" +# PROP BASE Intermediate_Dir ".\jpegtran\Release" +# PROP BASE Target_Dir ".\jpegtran" +# PROP Use_MFC 0 +# PROP Use_Debug_Libraries 0 +# PROP Output_Dir ".\jpegtran\Release" +# PROP Intermediate_Dir ".\jpegtran\Release" +# PROP Ignore_Export_Lib 0 +# PROP Target_Dir ".\jpegtran" +# ADD BASE CPP /nologo /W3 /GX /O2 /D "WIN32" /D "NDEBUG" /D "_CONSOLE" /YX /c +# ADD CPP /nologo /G6 /MT /W3 /GX /Ox /Oa /Ob2 /D "WIN32" /D "NDEBUG" /D "_CONSOLE" /YX /FD /c +# ADD BASE RSC /l 0x409 /d "NDEBUG" +# ADD RSC /l 0x409 /d "NDEBUG" +BSC32=bscmake.exe +# ADD BASE BSC32 /nologo +# ADD BSC32 /nologo +LINK32=link.exe +# ADD BASE LINK32 kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib /nologo /subsystem:console /machine:I386 +# ADD LINK32 Release\jpeg.lib kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib /nologo /subsystem:console /machine:I386 +# Begin Target + +# Name "jpegtran - Win32" +# Begin Group "Quellcodedateien" + +# PROP Default_Filter "cpp;c;cxx;rc;def;r;odl;idl;hpj;bat;for;f90" +# Begin Source File + +SOURCE=.\cdjpeg.c +# End Source File +# Begin Source File + +SOURCE=.\jpegtran.c +# End Source File +# Begin Source File + +SOURCE=.\rdswitch.c +# End Source File +# Begin Source File + +SOURCE=.\transupp.c +# End Source File +# End Group +# Begin Group "Header-Dateien" + +# PROP Default_Filter "h;hpp;hxx;hm;inl;fi;fd" +# Begin Source File + +SOURCE=.\cderror.h +# End Source File +# Begin Source File + +SOURCE=.\cdjpeg.h +# End Source File +# Begin Source File + +SOURCE=.\jconfig.h +# End Source File +# Begin Source File + +SOURCE=.\jerror.h +# End Source File +# Begin Source File + +SOURCE=.\jinclude.h +# End Source File +# Begin Source File + +SOURCE=.\jmorecfg.h +# End Source File +# Begin Source File + +SOURCE=.\jpegint.h +# End Source File +# Begin Source File + +SOURCE=.\jpeglib.h +# End Source File +# Begin Source File + +SOURCE=.\jversion.h +# End Source File +# Begin Source File + +SOURCE=.\transupp.h +# End Source File +# End Group +# Begin Group "Ressourcendateien" + +# PROP Default_Filter "ico;cur;bmp;dlg;rc2;rct;bin;cnt;rtf;gif;jpg;jpeg;jpe" +# End Group +# End Target +# End Project diff --git a/jpeg/maketfil.v10 b/jpeg/maketfil.v10 new file mode 100644 index 0000000..e772792 --- /dev/null +++ b/jpeg/maketfil.v10 @@ -0,0 +1,63 @@ + + + + + {4FC737F1-C7A5-4376-A066-2A32D752A2FF} + cpp;c;cc;cxx;def;odl;idl;hpj;bat;asm;asmx + + + {93995380-89BD-4b04-88EB-625FBE52EBFB} + h;hpp;hxx;hm;inl;inc;xsd + + + {67DA6AB6-F800-4c08-8B7A-83BB121AAD01} + rc;ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe;resx;tiff;tif;png;wav;mfcribbon-ms + + + + + Header Files + + + Header Files + + + Header Files + + + Header Files + + + Header Files + + + Header Files + + + Header Files + + + Header Files + + + Header Files + + + Header Files + + + + + Source Files + + + Source Files + + + Source Files + + + Source Files + + + \ No newline at end of file diff --git a/jpeg/maketmak.vc6 b/jpeg/maketmak.vc6 new file mode 100644 index 0000000..4ef27fd --- /dev/null +++ b/jpeg/maketmak.vc6 @@ -0,0 +1,131 @@ +# Microsoft Developer Studio Generated NMAKE File, Based on jpegtran.dsp +!IF "$(CFG)" == "" +CFG=jpegtran - Win32 +!MESSAGE Keine Konfiguration angegeben. jpegtran - Win32 wird als Standard verwendet. +!ENDIF + +!IF "$(CFG)" != "jpegtran - Win32" +!MESSAGE Ungltige Konfiguration "$(CFG)" angegeben. +!MESSAGE Sie k”nnen beim Ausfhren von NMAKE eine Konfiguration angeben +!MESSAGE durch Definieren des Makros CFG in der Befehlszeile. Zum Beispiel: +!MESSAGE +!MESSAGE NMAKE /f "jpegtran.mak" CFG="jpegtran - Win32" +!MESSAGE +!MESSAGE Fr die Konfiguration stehen zur Auswahl: +!MESSAGE +!MESSAGE "jpegtran - Win32" (basierend auf "Win32 (x86) Console Application") +!MESSAGE +!ERROR Eine ungltige Konfiguration wurde angegeben. +!ENDIF + +!IF "$(OS)" == "Windows_NT" +NULL= +!ELSE +NULL=nul +!ENDIF + +CPP=cl.exe +RSC=rc.exe +OUTDIR=.\jpegtran\Release +INTDIR=.\jpegtran\Release +# Begin Custom Macros +OutDir=.\jpegtran\Release +# End Custom Macros + +ALL : "$(OUTDIR)\jpegtran.exe" + + +CLEAN : + -@erase "$(INTDIR)\cdjpeg.obj" + -@erase "$(INTDIR)\jpegtran.obj" + -@erase "$(INTDIR)\rdswitch.obj" + -@erase "$(INTDIR)\transupp.obj" + -@erase "$(INTDIR)\vc60.idb" + -@erase "$(OUTDIR)\jpegtran.exe" + +"$(OUTDIR)" : + if not exist "$(OUTDIR)/$(NULL)" mkdir "$(OUTDIR)" + +BSC32=bscmake.exe +BSC32_FLAGS=/nologo /o"$(OUTDIR)\jpegtran.bsc" +BSC32_SBRS= \ + +LINK32=link.exe +LINK32_FLAGS=Release\jpeg.lib kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib /nologo /subsystem:console /incremental:no /pdb:"$(OUTDIR)\jpegtran.pdb" /machine:I386 /out:"$(OUTDIR)\jpegtran.exe" +LINK32_OBJS= \ + "$(INTDIR)\cdjpeg.obj" \ + "$(INTDIR)\jpegtran.obj" \ + "$(INTDIR)\rdswitch.obj" \ + "$(INTDIR)\transupp.obj" + +"$(OUTDIR)\jpegtran.exe" : "$(OUTDIR)" $(DEF_FILE) $(LINK32_OBJS) + $(LINK32) @<< + $(LINK32_FLAGS) $(LINK32_OBJS) +<< + +CPP_PROJ=/nologo /G6 /MT /W3 /GX /Ox /Oa /Ob2 /D "WIN32" /D "NDEBUG" /D "_CONSOLE" /Fp"$(INTDIR)\jpegtran.pch" /YX /Fo"$(INTDIR)\\" /Fd"$(INTDIR)\\" /FD /c + +.c{$(INTDIR)}.obj:: + $(CPP) @<< + $(CPP_PROJ) $< +<< + +.cpp{$(INTDIR)}.obj:: + $(CPP) @<< + $(CPP_PROJ) $< +<< + +.cxx{$(INTDIR)}.obj:: + $(CPP) @<< + $(CPP_PROJ) $< +<< + +.c{$(INTDIR)}.sbr:: + $(CPP) @<< + $(CPP_PROJ) $< +<< + +.cpp{$(INTDIR)}.sbr:: + $(CPP) @<< + $(CPP_PROJ) $< +<< + +.cxx{$(INTDIR)}.sbr:: + $(CPP) @<< + $(CPP_PROJ) $< +<< + + +!IF "$(NO_EXTERNAL_DEPS)" != "1" +!IF EXISTS("jpegtran.dep") +!INCLUDE "jpegtran.dep" +!ELSE +!MESSAGE Warning: cannot find "jpegtran.dep" +!ENDIF +!ENDIF + + +!IF "$(CFG)" == "jpegtran - Win32" +SOURCE=.\cdjpeg.c + +"$(INTDIR)\cdjpeg.obj" : $(SOURCE) "$(INTDIR)" + + +SOURCE=.\jpegtran.c + +"$(INTDIR)\jpegtran.obj" : $(SOURCE) "$(INTDIR)" + + +SOURCE=.\rdswitch.c + +"$(INTDIR)\rdswitch.obj" : $(SOURCE) "$(INTDIR)" + + +SOURCE=.\transupp.c + +"$(INTDIR)\transupp.obj" : $(SOURCE) "$(INTDIR)" + + + +!ENDIF + diff --git a/jpeg/maketvcx.v10 b/jpeg/maketvcx.v10 new file mode 100644 index 0000000..b8e7203 --- /dev/null +++ b/jpeg/maketvcx.v10 @@ -0,0 +1,74 @@ + + + + + Release + Win32 + + + + {025BAC50-51B5-4FFE-BC47-3F920BB4047E} + Win32Proj + jpegtran + + + + Application + false + true + Unicode + + + + + + + + + + false + $(ProjectName)\$(Configuration)\ + $(ProjectName)\$(Configuration)\ + + + + Level3 + NotUsing + Full + true + false + WIN32;NDEBUG;_CONSOLE;_CRT_SECURE_NO_WARNINGS + true + true + 4996 + + + Console + true + true + true + Release\jpeg.lib;kernel32.lib;user32.lib;gdi32.lib;winspool.lib;comdlg32.lib;advapi32.lib;shell32.lib;ole32.lib;oleaut32.lib;uuid.lib;odbc32.lib;odbccp32.lib;%(AdditionalDependencies) + + + + + + + + + + + + + + + + + + + + + + + + \ No newline at end of file diff --git a/jpeg/makewdep.vc6 b/jpeg/makewdep.vc6 new file mode 100644 index 0000000..358146f --- /dev/null +++ b/jpeg/makewdep.vc6 @@ -0,0 +1,6 @@ +# Microsoft Developer Studio erstellte Abhängigkeitsdatei, einbezogen von wrjpgcom.mak + +.\wrjpgcom.c : \ + ".\jconfig.h"\ + ".\jinclude.h"\ + diff --git a/jpeg/makewdsp.vc6 b/jpeg/makewdsp.vc6 new file mode 100644 index 0000000..b572e8a --- /dev/null +++ b/jpeg/makewdsp.vc6 @@ -0,0 +1,78 @@ +# Microsoft Developer Studio Project File - Name="wrjpgcom" - Package Owner=<4> +# Microsoft Developer Studio Generated Build File, Format Version 6.00 +# ** NICHT BEARBEITEN ** + +# TARGTYPE "Win32 (x86) Console Application" 0x0103 + +CFG=wrjpgcom - Win32 +!MESSAGE Dies ist kein gültiges Makefile. Zum Erstellen dieses Projekts mit NMAKE +!MESSAGE verwenden Sie den Befehl "Makefile exportieren" und führen Sie den Befehl +!MESSAGE +!MESSAGE NMAKE /f "wrjpgcom.mak". +!MESSAGE +!MESSAGE Sie können beim Ausführen von NMAKE eine Konfiguration angeben +!MESSAGE durch Definieren des Makros CFG in der Befehlszeile. Zum Beispiel: +!MESSAGE +!MESSAGE NMAKE /f "wrjpgcom.mak" CFG="wrjpgcom - Win32" +!MESSAGE +!MESSAGE Für die Konfiguration stehen zur Auswahl: +!MESSAGE +!MESSAGE "wrjpgcom - Win32" (basierend auf "Win32 (x86) Console Application") +!MESSAGE + +# Begin Project +# PROP AllowPerConfigDependencies 0 +# PROP Scc_ProjName "" +# PROP Scc_LocalPath "" +CPP=cl.exe +RSC=rc.exe +# PROP BASE Use_MFC 0 +# PROP BASE Use_Debug_Libraries 0 +# PROP BASE Output_Dir ".\wrjpgcom\Release" +# PROP BASE Intermediate_Dir ".\wrjpgcom\Release" +# PROP BASE Target_Dir ".\wrjpgcom" +# PROP Use_MFC 0 +# PROP Use_Debug_Libraries 0 +# PROP Output_Dir ".\wrjpgcom\Release" +# PROP Intermediate_Dir ".\wrjpgcom\Release" +# PROP Ignore_Export_Lib 0 +# PROP Target_Dir ".\wrjpgcom" +# ADD BASE CPP /nologo /W3 /GX /O2 /D "WIN32" /D "NDEBUG" /D "_CONSOLE" /YX /c +# ADD CPP /nologo /G6 /MT /W3 /GX /Ox /Oa /Ob2 /D "WIN32" /D "NDEBUG" /D "_CONSOLE" /YX /FD /c +# ADD BASE RSC /l 0x409 /d "NDEBUG" +# ADD RSC /l 0x409 /d "NDEBUG" +BSC32=bscmake.exe +# ADD BASE BSC32 /nologo +# ADD BSC32 /nologo +LINK32=link.exe +# ADD BASE LINK32 kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib /nologo /subsystem:console /machine:I386 +# ADD LINK32 Release\jpeg.lib kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib /nologo /subsystem:console /machine:I386 +# Begin Target + +# Name "wrjpgcom - Win32" +# Begin Group "Quellcodedateien" + +# PROP Default_Filter "cpp;c;cxx;rc;def;r;odl;idl;hpj;bat;for;f90" +# Begin Source File + +SOURCE=.\wrjpgcom.c +# End Source File +# End Group +# Begin Group "Header-Dateien" + +# PROP Default_Filter "h;hpp;hxx;hm;inl;fi;fd" +# Begin Source File + +SOURCE=.\jconfig.h +# End Source File +# Begin Source File + +SOURCE=.\jinclude.h +# End Source File +# End Group +# Begin Group "Ressourcendateien" + +# PROP Default_Filter "ico;cur;bmp;dlg;rc2;rct;bin;cnt;rtf;gif;jpg;jpeg;jpe" +# End Group +# End Target +# End Project diff --git a/jpeg/makewfil.v10 b/jpeg/makewfil.v10 new file mode 100644 index 0000000..370fa14 --- /dev/null +++ b/jpeg/makewfil.v10 @@ -0,0 +1,30 @@ + + + + + {4FC737F1-C7A5-4376-A066-2A32D752A2FF} + cpp;c;cc;cxx;def;odl;idl;hpj;bat;asm;asmx + + + {93995380-89BD-4b04-88EB-625FBE52EBFB} + h;hpp;hxx;hm;inl;inc;xsd + + + {67DA6AB6-F800-4c08-8B7A-83BB121AAD01} + rc;ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe;resx;tiff;tif;png;wav;mfcribbon-ms + + + + + Header Files + + + Header Files + + + + + Source Files + + + \ No newline at end of file diff --git a/jpeg/makewmak.vc6 b/jpeg/makewmak.vc6 new file mode 100644 index 0000000..27c73f3 --- /dev/null +++ b/jpeg/makewmak.vc6 @@ -0,0 +1,110 @@ +# Microsoft Developer Studio Generated NMAKE File, Based on wrjpgcom.dsp +!IF "$(CFG)" == "" +CFG=wrjpgcom - Win32 +!MESSAGE Keine Konfiguration angegeben. wrjpgcom - Win32 wird als Standard verwendet. +!ENDIF + +!IF "$(CFG)" != "wrjpgcom - Win32" +!MESSAGE Ungltige Konfiguration "$(CFG)" angegeben. +!MESSAGE Sie k”nnen beim Ausfhren von NMAKE eine Konfiguration angeben +!MESSAGE durch Definieren des Makros CFG in der Befehlszeile. Zum Beispiel: +!MESSAGE +!MESSAGE NMAKE /f "wrjpgcom.mak" CFG="wrjpgcom - Win32" +!MESSAGE +!MESSAGE Fr die Konfiguration stehen zur Auswahl: +!MESSAGE +!MESSAGE "wrjpgcom - Win32" (basierend auf "Win32 (x86) Console Application") +!MESSAGE +!ERROR Eine ungltige Konfiguration wurde angegeben. +!ENDIF + +!IF "$(OS)" == "Windows_NT" +NULL= +!ELSE +NULL=nul +!ENDIF + +CPP=cl.exe +RSC=rc.exe +OUTDIR=.\wrjpgcom\Release +INTDIR=.\wrjpgcom\Release +# Begin Custom Macros +OutDir=.\wrjpgcom\Release +# End Custom Macros + +ALL : "$(OUTDIR)\wrjpgcom.exe" + + +CLEAN : + -@erase "$(INTDIR)\vc60.idb" + -@erase "$(INTDIR)\wrjpgcom.obj" + -@erase "$(OUTDIR)\wrjpgcom.exe" + +"$(OUTDIR)" : + if not exist "$(OUTDIR)/$(NULL)" mkdir "$(OUTDIR)" + +BSC32=bscmake.exe +BSC32_FLAGS=/nologo /o"$(OUTDIR)\wrjpgcom.bsc" +BSC32_SBRS= \ + +LINK32=link.exe +LINK32_FLAGS=Release\jpeg.lib kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib /nologo /subsystem:console /incremental:no /pdb:"$(OUTDIR)\wrjpgcom.pdb" /machine:I386 /out:"$(OUTDIR)\wrjpgcom.exe" +LINK32_OBJS= \ + "$(INTDIR)\wrjpgcom.obj" + +"$(OUTDIR)\wrjpgcom.exe" : "$(OUTDIR)" $(DEF_FILE) $(LINK32_OBJS) + $(LINK32) @<< + $(LINK32_FLAGS) $(LINK32_OBJS) +<< + +CPP_PROJ=/nologo /G6 /MT /W3 /GX /Ox /Oa /Ob2 /D "WIN32" /D "NDEBUG" /D "_CONSOLE" /Fp"$(INTDIR)\wrjpgcom.pch" /YX /Fo"$(INTDIR)\\" /Fd"$(INTDIR)\\" /FD /c + +.c{$(INTDIR)}.obj:: + $(CPP) @<< + $(CPP_PROJ) $< +<< + +.cpp{$(INTDIR)}.obj:: + $(CPP) @<< + $(CPP_PROJ) $< +<< + +.cxx{$(INTDIR)}.obj:: + $(CPP) @<< + $(CPP_PROJ) $< +<< + +.c{$(INTDIR)}.sbr:: + $(CPP) @<< + $(CPP_PROJ) $< +<< + +.cpp{$(INTDIR)}.sbr:: + $(CPP) @<< + $(CPP_PROJ) $< +<< + +.cxx{$(INTDIR)}.sbr:: + $(CPP) @<< + $(CPP_PROJ) $< +<< + + +!IF "$(NO_EXTERNAL_DEPS)" != "1" +!IF EXISTS("wrjpgcom.dep") +!INCLUDE "wrjpgcom.dep" +!ELSE +!MESSAGE Warning: cannot find "wrjpgcom.dep" +!ENDIF +!ENDIF + + +!IF "$(CFG)" == "wrjpgcom - Win32" +SOURCE=.\wrjpgcom.c + +"$(INTDIR)\wrjpgcom.obj" : $(SOURCE) "$(INTDIR)" + + + +!ENDIF + diff --git a/jpeg/makewvcx.v10 b/jpeg/makewvcx.v10 new file mode 100644 index 0000000..b7ce0b4 --- /dev/null +++ b/jpeg/makewvcx.v10 @@ -0,0 +1,62 @@ + + + + + Release + Win32 + + + + {B57065D4-DDDA-4668-BAF5-2D49270C973C} + Win32Proj + wrjpgcom + + + + Application + false + true + Unicode + + + + + + + + + + false + $(ProjectName)\$(Configuration)\ + $(ProjectName)\$(Configuration)\ + + + + Level3 + NotUsing + Full + true + false + WIN32;NDEBUG;_CONSOLE;_CRT_SECURE_NO_WARNINGS + true + true + 4996 + + + Console + true + true + true + + + + + + + + + + + + + \ No newline at end of file diff --git a/jpeg/makljpeg.st b/jpeg/makljpeg.st new file mode 100644 index 0000000..cc1ba01 --- /dev/null +++ b/jpeg/makljpeg.st @@ -0,0 +1,68 @@ +; Project file for Independent JPEG Group's software +; +; This project file is for Atari ST/STE/TT systems using Pure C or Turbo C. +; Thanks to Frank Moehle, B. Setzepfandt, and Guido Vollbeding. +; +; To use this file, rename it to libjpeg.prj. +; Read installation instructions before trying to make the program! +; +; +; * * * Output file * * * +libjpeg.lib +; +; * * * COMPILER OPTIONS * * * +.C[-P] ; absolute calls +.C[-M] ; and no string merging, folks +.C[-w-cln] ; no "constant is long" warnings +.C[-w-par] ; no "parameter xxxx unused" +.C[-w-rch] ; no "unreachable code" +.C[-wsig] ; warn if significant digits may be lost +.L[-J] ; link new Obj-format (so we get a library) += +; * * * * List of modules * * * * +jaricom.c (jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jpegint.h,jerror.h) +jcapimin.c (jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jpegint.h,jerror.h) +jcapistd.c (jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jpegint.h,jerror.h) +jcarith.c (jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jpegint.h,jerror.h) +jccoefct.c (jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jpegint.h,jerror.h) +jccolor.c (jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jpegint.h,jerror.h) +jcdctmgr.c (jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jpegint.h,jerror.h,jdct.h) +jchuff.c (jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jpegint.h,jerror.h) +jcinit.c (jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jpegint.h,jerror.h) +jcmainct.c (jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jpegint.h,jerror.h) +jcmarker.c (jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jpegint.h,jerror.h) +jcmaster.c (jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jpegint.h,jerror.h) +jcomapi.c (jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jpegint.h,jerror.h) +jcparam.c (jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jpegint.h,jerror.h) +jcprepct.c (jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jpegint.h,jerror.h) +jcsample.c (jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jpegint.h,jerror.h) +jctrans.c (jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jpegint.h,jerror.h) +jdapimin.c (jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jpegint.h,jerror.h) +jdapistd.c (jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jpegint.h,jerror.h) +jdarith.c (jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jpegint.h,jerror.h) +jdatadst.c (jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jerror.h) +jdatasrc.c (jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jerror.h) +jdcoefct.c (jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jpegint.h,jerror.h) +jdcolor.c (jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jpegint.h,jerror.h) +jddctmgr.c (jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jpegint.h,jerror.h,jdct.h) +jdhuff.c (jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jpegint.h,jerror.h) +jdinput.c (jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jpegint.h,jerror.h) +jdmainct.c (jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jpegint.h,jerror.h) +jdmarker.c (jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jpegint.h,jerror.h) +jdmaster.c (jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jpegint.h,jerror.h) +jdmerge.c (jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jpegint.h,jerror.h) +jdpostct.c (jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jpegint.h,jerror.h) +jdsample.c (jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jpegint.h,jerror.h) +jdtrans.c (jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jpegint.h,jerror.h) +jerror.c (jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jversion.h,jerror.h) +jfdctflt.c (jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jpegint.h,jerror.h,jdct.h) +jfdctfst.c (jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jpegint.h,jerror.h,jdct.h) +jfdctint.c (jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jpegint.h,jerror.h,jdct.h) +jidctflt.c (jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jpegint.h,jerror.h,jdct.h) +jidctfst.c (jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jpegint.h,jerror.h,jdct.h) +jidctint.c (jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jpegint.h,jerror.h,jdct.h) +jquant1.c (jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jpegint.h,jerror.h) +jquant2.c (jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jpegint.h,jerror.h) +jutils.c (jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jpegint.h,jerror.h) +jmemmgr.c (jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jpegint.h,jerror.h,jmemsys.h) +jmemansi.c (jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jpegint.h,jerror.h,jmemsys.h) diff --git a/jpeg/maktjpeg.st b/jpeg/maktjpeg.st new file mode 100644 index 0000000..43f078a --- /dev/null +++ b/jpeg/maktjpeg.st @@ -0,0 +1,30 @@ +; Project file for Independent JPEG Group's software +; +; This project file is for Atari ST/STE/TT systems using Pure C or Turbo C. +; Thanks to Frank Moehle, B. Setzepfandt, and Guido Vollbeding. +; +; To use this file, rename it to jpegtran.prj. +; If you are using Turbo C, change filenames beginning with "pc..." to "tc..." +; Read installation instructions before trying to make the program! +; +; +; * * * Output file * * * +jpegtran.ttp +; +; * * * COMPILER OPTIONS * * * +.C[-P] ; absolute calls +.C[-M] ; and no string merging, folks +.C[-w-cln] ; no "constant is long" warnings +.C[-w-par] ; no "parameter xxxx unused" +.C[-w-rch] ; no "unreachable code" +.C[-wsig] ; warn if significant digits may be lost += +; * * * * List of modules * * * * +pcstart.o +jpegtran.c (cdjpeg.h,jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jerror.h,cderror.h,transupp.h,jversion.h) +cdjpeg.c (cdjpeg.h,jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jerror.h,cderror.h) +rdswitch.c (cdjpeg.h,jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jerror.h,cderror.h) +transupp.c (jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jpegint.h,jerror.h,transupp.h) +libjpeg.lib ; built by libjpeg.prj +pcstdlib.lib ; standard library +pcextlib.lib ; extended library diff --git a/jpeg/makvms.opt b/jpeg/makvms.opt new file mode 100644 index 0000000..675e8fe --- /dev/null +++ b/jpeg/makvms.opt @@ -0,0 +1,4 @@ +! A pointer to the VAX/VMS C Run-Time Shareable Library. +! This file is needed by makefile.mms and makefile.vms, +! but only for the older VAX C compiler. DEC C does not need it. +Sys$Library:VAXCRTL.EXE /Share diff --git a/jpeg/missing b/jpeg/missing new file mode 100644 index 0000000..28055d2 --- /dev/null +++ b/jpeg/missing @@ -0,0 +1,376 @@ +#! /bin/sh +# Common stub for a few missing GNU programs while installing. + +scriptversion=2009-04-28.21; # UTC + +# Copyright (C) 1996, 1997, 1999, 2000, 2002, 2003, 2004, 2005, 2006, +# 2008, 2009 Free Software Foundation, Inc. +# Originally by Fran,cois Pinard , 1996. + +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 2, or (at your option) +# any later version. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. + +# You should have received a copy of the GNU General Public License +# along with this program. If not, see . + +# As a special exception to the GNU General Public License, if you +# distribute this file as part of a program that contains a +# configuration script generated by Autoconf, you may include it under +# the same distribution terms that you use for the rest of that program. + +if test $# -eq 0; then + echo 1>&2 "Try \`$0 --help' for more information" + exit 1 +fi + +run=: +sed_output='s/.* --output[ =]\([^ ]*\).*/\1/p' +sed_minuso='s/.* -o \([^ ]*\).*/\1/p' + +# In the cases where this matters, `missing' is being run in the +# srcdir already. +if test -f configure.ac; then + configure_ac=configure.ac +else + configure_ac=configure.in +fi + +msg="missing on your system" + +case $1 in +--run) + # Try to run requested program, and just exit if it succeeds. + run= + shift + "$@" && exit 0 + # Exit code 63 means version mismatch. This often happens + # when the user try to use an ancient version of a tool on + # a file that requires a minimum version. In this case we + # we should proceed has if the program had been absent, or + # if --run hadn't been passed. + if test $? = 63; then + run=: + msg="probably too old" + fi + ;; + + -h|--h|--he|--hel|--help) + echo "\ +$0 [OPTION]... PROGRAM [ARGUMENT]... + +Handle \`PROGRAM [ARGUMENT]...' for when PROGRAM is missing, or return an +error status if there is no known handling for PROGRAM. + +Options: + -h, --help display this help and exit + -v, --version output version information and exit + --run try to run the given command, and emulate it if it fails + +Supported PROGRAM values: + aclocal touch file \`aclocal.m4' + autoconf touch file \`configure' + autoheader touch file \`config.h.in' + autom4te touch the output file, or create a stub one + automake touch all \`Makefile.in' files + bison create \`y.tab.[ch]', if possible, from existing .[ch] + flex create \`lex.yy.c', if possible, from existing .c + help2man touch the output file + lex create \`lex.yy.c', if possible, from existing .c + makeinfo touch the output file + tar try tar, gnutar, gtar, then tar without non-portable flags + yacc create \`y.tab.[ch]', if possible, from existing .[ch] + +Version suffixes to PROGRAM as well as the prefixes \`gnu-', \`gnu', and +\`g' are ignored when checking the name. + +Send bug reports to ." + exit $? + ;; + + -v|--v|--ve|--ver|--vers|--versi|--versio|--version) + echo "missing $scriptversion (GNU Automake)" + exit $? + ;; + + -*) + echo 1>&2 "$0: Unknown \`$1' option" + echo 1>&2 "Try \`$0 --help' for more information" + exit 1 + ;; + +esac + +# normalize program name to check for. +program=`echo "$1" | sed ' + s/^gnu-//; t + s/^gnu//; t + s/^g//; t'` + +# Now exit if we have it, but it failed. Also exit now if we +# don't have it and --version was passed (most likely to detect +# the program). This is about non-GNU programs, so use $1 not +# $program. +case $1 in + lex*|yacc*) + # Not GNU programs, they don't have --version. + ;; + + tar*) + if test -n "$run"; then + echo 1>&2 "ERROR: \`tar' requires --run" + exit 1 + elif test "x$2" = "x--version" || test "x$2" = "x--help"; then + exit 1 + fi + ;; + + *) + if test -z "$run" && ($1 --version) > /dev/null 2>&1; then + # We have it, but it failed. + exit 1 + elif test "x$2" = "x--version" || test "x$2" = "x--help"; then + # Could not run --version or --help. This is probably someone + # running `$TOOL --version' or `$TOOL --help' to check whether + # $TOOL exists and not knowing $TOOL uses missing. + exit 1 + fi + ;; +esac + +# If it does not exist, or fails to run (possibly an outdated version), +# try to emulate it. +case $program in + aclocal*) + echo 1>&2 "\ +WARNING: \`$1' is $msg. You should only need it if + you modified \`acinclude.m4' or \`${configure_ac}'. You might want + to install the \`Automake' and \`Perl' packages. Grab them from + any GNU archive site." + touch aclocal.m4 + ;; + + autoconf*) + echo 1>&2 "\ +WARNING: \`$1' is $msg. You should only need it if + you modified \`${configure_ac}'. You might want to install the + \`Autoconf' and \`GNU m4' packages. Grab them from any GNU + archive site." + touch configure + ;; + + autoheader*) + echo 1>&2 "\ +WARNING: \`$1' is $msg. You should only need it if + you modified \`acconfig.h' or \`${configure_ac}'. You might want + to install the \`Autoconf' and \`GNU m4' packages. Grab them + from any GNU archive site." + files=`sed -n 's/^[ ]*A[CM]_CONFIG_HEADER(\([^)]*\)).*/\1/p' ${configure_ac}` + test -z "$files" && files="config.h" + touch_files= + for f in $files; do + case $f in + *:*) touch_files="$touch_files "`echo "$f" | + sed -e 's/^[^:]*://' -e 's/:.*//'`;; + *) touch_files="$touch_files $f.in";; + esac + done + touch $touch_files + ;; + + automake*) + echo 1>&2 "\ +WARNING: \`$1' is $msg. You should only need it if + you modified \`Makefile.am', \`acinclude.m4' or \`${configure_ac}'. + You might want to install the \`Automake' and \`Perl' packages. + Grab them from any GNU archive site." + find . -type f -name Makefile.am -print | + sed 's/\.am$/.in/' | + while read f; do touch "$f"; done + ;; + + autom4te*) + echo 1>&2 "\ +WARNING: \`$1' is needed, but is $msg. + You might have modified some files without having the + proper tools for further handling them. + You can get \`$1' as part of \`Autoconf' from any GNU + archive site." + + file=`echo "$*" | sed -n "$sed_output"` + test -z "$file" && file=`echo "$*" | sed -n "$sed_minuso"` + if test -f "$file"; then + touch $file + else + test -z "$file" || exec >$file + echo "#! /bin/sh" + echo "# Created by GNU Automake missing as a replacement of" + echo "# $ $@" + echo "exit 0" + chmod +x $file + exit 1 + fi + ;; + + bison*|yacc*) + echo 1>&2 "\ +WARNING: \`$1' $msg. You should only need it if + you modified a \`.y' file. You may need the \`Bison' package + in order for those modifications to take effect. You can get + \`Bison' from any GNU archive site." + rm -f y.tab.c y.tab.h + if test $# -ne 1; then + eval LASTARG="\${$#}" + case $LASTARG in + *.y) + SRCFILE=`echo "$LASTARG" | sed 's/y$/c/'` + if test -f "$SRCFILE"; then + cp "$SRCFILE" y.tab.c + fi + SRCFILE=`echo "$LASTARG" | sed 's/y$/h/'` + if test -f "$SRCFILE"; then + cp "$SRCFILE" y.tab.h + fi + ;; + esac + fi + if test ! -f y.tab.h; then + echo >y.tab.h + fi + if test ! -f y.tab.c; then + echo 'main() { return 0; }' >y.tab.c + fi + ;; + + lex*|flex*) + echo 1>&2 "\ +WARNING: \`$1' is $msg. You should only need it if + you modified a \`.l' file. You may need the \`Flex' package + in order for those modifications to take effect. You can get + \`Flex' from any GNU archive site." + rm -f lex.yy.c + if test $# -ne 1; then + eval LASTARG="\${$#}" + case $LASTARG in + *.l) + SRCFILE=`echo "$LASTARG" | sed 's/l$/c/'` + if test -f "$SRCFILE"; then + cp "$SRCFILE" lex.yy.c + fi + ;; + esac + fi + if test ! -f lex.yy.c; then + echo 'main() { return 0; }' >lex.yy.c + fi + ;; + + help2man*) + echo 1>&2 "\ +WARNING: \`$1' is $msg. You should only need it if + you modified a dependency of a manual page. You may need the + \`Help2man' package in order for those modifications to take + effect. You can get \`Help2man' from any GNU archive site." + + file=`echo "$*" | sed -n "$sed_output"` + test -z "$file" && file=`echo "$*" | sed -n "$sed_minuso"` + if test -f "$file"; then + touch $file + else + test -z "$file" || exec >$file + echo ".ab help2man is required to generate this page" + exit $? + fi + ;; + + makeinfo*) + echo 1>&2 "\ +WARNING: \`$1' is $msg. You should only need it if + you modified a \`.texi' or \`.texinfo' file, or any other file + indirectly affecting the aspect of the manual. The spurious + call might also be the consequence of using a buggy \`make' (AIX, + DU, IRIX). You might want to install the \`Texinfo' package or + the \`GNU make' package. Grab either from any GNU archive site." + # The file to touch is that specified with -o ... + file=`echo "$*" | sed -n "$sed_output"` + test -z "$file" && file=`echo "$*" | sed -n "$sed_minuso"` + if test -z "$file"; then + # ... or it is the one specified with @setfilename ... + infile=`echo "$*" | sed 's/.* \([^ ]*\) *$/\1/'` + file=`sed -n ' + /^@setfilename/{ + s/.* \([^ ]*\) *$/\1/ + p + q + }' $infile` + # ... or it is derived from the source name (dir/f.texi becomes f.info) + test -z "$file" && file=`echo "$infile" | sed 's,.*/,,;s,.[^.]*$,,'`.info + fi + # If the file does not exist, the user really needs makeinfo; + # let's fail without touching anything. + test -f $file || exit 1 + touch $file + ;; + + tar*) + shift + + # We have already tried tar in the generic part. + # Look for gnutar/gtar before invocation to avoid ugly error + # messages. + if (gnutar --version > /dev/null 2>&1); then + gnutar "$@" && exit 0 + fi + if (gtar --version > /dev/null 2>&1); then + gtar "$@" && exit 0 + fi + firstarg="$1" + if shift; then + case $firstarg in + *o*) + firstarg=`echo "$firstarg" | sed s/o//` + tar "$firstarg" "$@" && exit 0 + ;; + esac + case $firstarg in + *h*) + firstarg=`echo "$firstarg" | sed s/h//` + tar "$firstarg" "$@" && exit 0 + ;; + esac + fi + + echo 1>&2 "\ +WARNING: I can't seem to be able to run \`tar' with the given arguments. + You may want to install GNU tar or Free paxutils, or check the + command line arguments." + exit 1 + ;; + + *) + echo 1>&2 "\ +WARNING: \`$1' is needed, and is $msg. + You might have modified some files without having the + proper tools for further handling them. Check the \`README' file, + it often tells you about the needed prerequisites for installing + this package. You may also peek at any GNU archive site, in case + some other package would contain this missing \`$1' program." + exit 1 + ;; +esac + +exit 0 + +# Local variables: +# eval: (add-hook 'write-file-hooks 'time-stamp) +# time-stamp-start: "scriptversion=" +# time-stamp-format: "%:y-%02m-%02d.%02H" +# time-stamp-time-zone: "UTC" +# time-stamp-end: "; # UTC" +# End: diff --git a/jpeg/rdbmp.c b/jpeg/rdbmp.c new file mode 100644 index 0000000..fd773d4 --- /dev/null +++ b/jpeg/rdbmp.c @@ -0,0 +1,480 @@ +/* + * rdbmp.c + * + * Copyright (C) 1994-1996, Thomas G. Lane. + * Modified 2009-2010 by Guido Vollbeding. + * This file is part of the Independent JPEG Group's software. + * For conditions of distribution and use, see the accompanying README file. + * + * This file contains routines to read input images in Microsoft "BMP" + * format (MS Windows 3.x, OS/2 1.x, and OS/2 2.x flavors). + * Currently, only 8-bit and 24-bit images are supported, not 1-bit or + * 4-bit (feeding such low-depth images into JPEG would be silly anyway). + * Also, we don't support RLE-compressed files. + * + * These routines may need modification for non-Unix environments or + * specialized applications. As they stand, they assume input from + * an ordinary stdio stream. They further assume that reading begins + * at the start of the file; start_input may need work if the + * user interface has already read some data (e.g., to determine that + * the file is indeed BMP format). + * + * This code contributed by James Arthur Boucher. + */ + +#include "cdjpeg.h" /* Common decls for cjpeg/djpeg applications */ + +#ifdef BMP_SUPPORTED + + +/* Macros to deal with unsigned chars as efficiently as compiler allows */ + +#ifdef HAVE_UNSIGNED_CHAR +typedef unsigned char U_CHAR; +#define UCH(x) ((int) (x)) +#else /* !HAVE_UNSIGNED_CHAR */ +#ifdef CHAR_IS_UNSIGNED +typedef char U_CHAR; +#define UCH(x) ((int) (x)) +#else +typedef char U_CHAR; +#define UCH(x) ((int) (x) & 0xFF) +#endif +#endif /* HAVE_UNSIGNED_CHAR */ + + +#define ReadOK(file,buffer,len) (JFREAD(file,buffer,len) == ((size_t) (len))) + + +/* Private version of data source object */ + +typedef struct _bmp_source_struct * bmp_source_ptr; + +typedef struct _bmp_source_struct { + struct cjpeg_source_struct pub; /* public fields */ + + j_compress_ptr cinfo; /* back link saves passing separate parm */ + + JSAMPARRAY colormap; /* BMP colormap (converted to my format) */ + + jvirt_sarray_ptr whole_image; /* Needed to reverse row order */ + JDIMENSION source_row; /* Current source row number */ + JDIMENSION row_width; /* Physical width of scanlines in file */ + + int bits_per_pixel; /* remembers 8- or 24-bit format */ +} bmp_source_struct; + + +LOCAL(int) +read_byte (bmp_source_ptr sinfo) +/* Read next byte from BMP file */ +{ + register FILE *infile = sinfo->pub.input_file; + register int c; + + if ((c = getc(infile)) == EOF) + ERREXIT(sinfo->cinfo, JERR_INPUT_EOF); + return c; +} + + +LOCAL(void) +read_colormap (bmp_source_ptr sinfo, int cmaplen, int mapentrysize) +/* Read the colormap from a BMP file */ +{ + int i; + + switch (mapentrysize) { + case 3: + /* BGR format (occurs in OS/2 files) */ + for (i = 0; i < cmaplen; i++) { + sinfo->colormap[2][i] = (JSAMPLE) read_byte(sinfo); + sinfo->colormap[1][i] = (JSAMPLE) read_byte(sinfo); + sinfo->colormap[0][i] = (JSAMPLE) read_byte(sinfo); + } + break; + case 4: + /* BGR0 format (occurs in MS Windows files) */ + for (i = 0; i < cmaplen; i++) { + sinfo->colormap[2][i] = (JSAMPLE) read_byte(sinfo); + sinfo->colormap[1][i] = (JSAMPLE) read_byte(sinfo); + sinfo->colormap[0][i] = (JSAMPLE) read_byte(sinfo); + (void) read_byte(sinfo); + } + break; + default: + ERREXIT(sinfo->cinfo, JERR_BMP_BADCMAP); + break; + } +} + + +/* + * Read one row of pixels. + * The image has been read into the whole_image array, but is otherwise + * unprocessed. We must read it out in top-to-bottom row order, and if + * it is an 8-bit image, we must expand colormapped pixels to 24bit format. + */ + +METHODDEF(JDIMENSION) +get_8bit_row (j_compress_ptr cinfo, cjpeg_source_ptr sinfo) +/* This version is for reading 8-bit colormap indexes */ +{ + bmp_source_ptr source = (bmp_source_ptr) sinfo; + register JSAMPARRAY colormap = source->colormap; + JSAMPARRAY image_ptr; + register int t; + register JSAMPROW inptr, outptr; + register JDIMENSION col; + + /* Fetch next row from virtual array */ + source->source_row--; + image_ptr = (*cinfo->mem->access_virt_sarray) + ((j_common_ptr) cinfo, source->whole_image, + source->source_row, (JDIMENSION) 1, FALSE); + + /* Expand the colormap indexes to real data */ + inptr = image_ptr[0]; + outptr = source->pub.buffer[0]; + for (col = cinfo->image_width; col > 0; col--) { + t = GETJSAMPLE(*inptr++); + *outptr++ = colormap[0][t]; /* can omit GETJSAMPLE() safely */ + *outptr++ = colormap[1][t]; + *outptr++ = colormap[2][t]; + } + + return 1; +} + + +METHODDEF(JDIMENSION) +get_24bit_row (j_compress_ptr cinfo, cjpeg_source_ptr sinfo) +/* This version is for reading 24-bit pixels */ +{ + bmp_source_ptr source = (bmp_source_ptr) sinfo; + JSAMPARRAY image_ptr; + register JSAMPROW inptr, outptr; + register JDIMENSION col; + + /* Fetch next row from virtual array */ + source->source_row--; + image_ptr = (*cinfo->mem->access_virt_sarray) + ((j_common_ptr) cinfo, source->whole_image, + source->source_row, (JDIMENSION) 1, FALSE); + + /* Transfer data. Note source values are in BGR order + * (even though Microsoft's own documents say the opposite). + */ + inptr = image_ptr[0]; + outptr = source->pub.buffer[0]; + for (col = cinfo->image_width; col > 0; col--) { + outptr[2] = *inptr++; /* can omit GETJSAMPLE() safely */ + outptr[1] = *inptr++; + outptr[0] = *inptr++; + outptr += 3; + } + + return 1; +} + + +METHODDEF(JDIMENSION) +get_32bit_row (j_compress_ptr cinfo, cjpeg_source_ptr sinfo) +/* This version is for reading 32-bit pixels */ +{ + bmp_source_ptr source = (bmp_source_ptr) sinfo; + JSAMPARRAY image_ptr; + register JSAMPROW inptr, outptr; + register JDIMENSION col; + + /* Fetch next row from virtual array */ + source->source_row--; + image_ptr = (*cinfo->mem->access_virt_sarray) + ((j_common_ptr) cinfo, source->whole_image, + source->source_row, (JDIMENSION) 1, FALSE); + /* Transfer data. Note source values are in BGR order + * (even though Microsoft's own documents say the opposite). + */ + inptr = image_ptr[0]; + outptr = source->pub.buffer[0]; + for (col = cinfo->image_width; col > 0; col--) { + outptr[2] = *inptr++; /* can omit GETJSAMPLE() safely */ + outptr[1] = *inptr++; + outptr[0] = *inptr++; + inptr++; /* skip the 4th byte (Alpha channel) */ + outptr += 3; + } + + return 1; +} + + +/* + * This method loads the image into whole_image during the first call on + * get_pixel_rows. The get_pixel_rows pointer is then adjusted to call + * get_8bit_row, get_24bit_row, or get_32bit_row on subsequent calls. + */ + +METHODDEF(JDIMENSION) +preload_image (j_compress_ptr cinfo, cjpeg_source_ptr sinfo) +{ + bmp_source_ptr source = (bmp_source_ptr) sinfo; + register FILE *infile = source->pub.input_file; + register int c; + register JSAMPROW out_ptr; + JSAMPARRAY image_ptr; + JDIMENSION row, col; + cd_progress_ptr progress = (cd_progress_ptr) cinfo->progress; + + /* Read the data into a virtual array in input-file row order. */ + for (row = 0; row < cinfo->image_height; row++) { + if (progress != NULL) { + progress->pub.pass_counter = (long) row; + progress->pub.pass_limit = (long) cinfo->image_height; + (*progress->pub.progress_monitor) ((j_common_ptr) cinfo); + } + image_ptr = (*cinfo->mem->access_virt_sarray) + ((j_common_ptr) cinfo, source->whole_image, + row, (JDIMENSION) 1, TRUE); + out_ptr = image_ptr[0]; + for (col = source->row_width; col > 0; col--) { + /* inline copy of read_byte() for speed */ + if ((c = getc(infile)) == EOF) + ERREXIT(cinfo, JERR_INPUT_EOF); + *out_ptr++ = (JSAMPLE) c; + } + } + if (progress != NULL) + progress->completed_extra_passes++; + + /* Set up to read from the virtual array in top-to-bottom order */ + switch (source->bits_per_pixel) { + case 8: + source->pub.get_pixel_rows = get_8bit_row; + break; + case 24: + source->pub.get_pixel_rows = get_24bit_row; + break; + case 32: + source->pub.get_pixel_rows = get_32bit_row; + break; + default: + ERREXIT(cinfo, JERR_BMP_BADDEPTH); + } + source->source_row = cinfo->image_height; + + /* And read the first row */ + return (*source->pub.get_pixel_rows) (cinfo, sinfo); +} + + +/* + * Read the file header; return image size and component count. + */ + +METHODDEF(void) +start_input_bmp (j_compress_ptr cinfo, cjpeg_source_ptr sinfo) +{ + bmp_source_ptr source = (bmp_source_ptr) sinfo; + U_CHAR bmpfileheader[14]; + U_CHAR bmpinfoheader[64]; +#define GET_2B(array,offset) ((unsigned int) UCH(array[offset]) + \ + (((unsigned int) UCH(array[offset+1])) << 8)) +#define GET_4B(array,offset) ((INT32) UCH(array[offset]) + \ + (((INT32) UCH(array[offset+1])) << 8) + \ + (((INT32) UCH(array[offset+2])) << 16) + \ + (((INT32) UCH(array[offset+3])) << 24)) + INT32 bfOffBits; + INT32 headerSize; + INT32 biWidth; + INT32 biHeight; + unsigned int biPlanes; + INT32 biCompression; + INT32 biXPelsPerMeter,biYPelsPerMeter; + INT32 biClrUsed = 0; + int mapentrysize = 0; /* 0 indicates no colormap */ + INT32 bPad; + JDIMENSION row_width; + + /* Read and verify the bitmap file header */ + if (! ReadOK(source->pub.input_file, bmpfileheader, 14)) + ERREXIT(cinfo, JERR_INPUT_EOF); + if (GET_2B(bmpfileheader,0) != 0x4D42) /* 'BM' */ + ERREXIT(cinfo, JERR_BMP_NOT); + bfOffBits = (INT32) GET_4B(bmpfileheader,10); + /* We ignore the remaining fileheader fields */ + + /* The infoheader might be 12 bytes (OS/2 1.x), 40 bytes (Windows), + * or 64 bytes (OS/2 2.x). Check the first 4 bytes to find out which. + */ + if (! ReadOK(source->pub.input_file, bmpinfoheader, 4)) + ERREXIT(cinfo, JERR_INPUT_EOF); + headerSize = (INT32) GET_4B(bmpinfoheader,0); + if (headerSize < 12 || headerSize > 64) + ERREXIT(cinfo, JERR_BMP_BADHEADER); + if (! ReadOK(source->pub.input_file, bmpinfoheader+4, headerSize-4)) + ERREXIT(cinfo, JERR_INPUT_EOF); + + switch ((int) headerSize) { + case 12: + /* Decode OS/2 1.x header (Microsoft calls this a BITMAPCOREHEADER) */ + biWidth = (INT32) GET_2B(bmpinfoheader,4); + biHeight = (INT32) GET_2B(bmpinfoheader,6); + biPlanes = GET_2B(bmpinfoheader,8); + source->bits_per_pixel = (int) GET_2B(bmpinfoheader,10); + + switch (source->bits_per_pixel) { + case 8: /* colormapped image */ + mapentrysize = 3; /* OS/2 uses RGBTRIPLE colormap */ + TRACEMS2(cinfo, 1, JTRC_BMP_OS2_MAPPED, (int) biWidth, (int) biHeight); + break; + case 24: /* RGB image */ + TRACEMS2(cinfo, 1, JTRC_BMP_OS2, (int) biWidth, (int) biHeight); + break; + default: + ERREXIT(cinfo, JERR_BMP_BADDEPTH); + break; + } + break; + case 40: + case 64: + /* Decode Windows 3.x header (Microsoft calls this a BITMAPINFOHEADER) */ + /* or OS/2 2.x header, which has additional fields that we ignore */ + biWidth = GET_4B(bmpinfoheader,4); + biHeight = GET_4B(bmpinfoheader,8); + biPlanes = GET_2B(bmpinfoheader,12); + source->bits_per_pixel = (int) GET_2B(bmpinfoheader,14); + biCompression = GET_4B(bmpinfoheader,16); + biXPelsPerMeter = GET_4B(bmpinfoheader,24); + biYPelsPerMeter = GET_4B(bmpinfoheader,28); + biClrUsed = GET_4B(bmpinfoheader,32); + /* biSizeImage, biClrImportant fields are ignored */ + + switch (source->bits_per_pixel) { + case 8: /* colormapped image */ + mapentrysize = 4; /* Windows uses RGBQUAD colormap */ + TRACEMS2(cinfo, 1, JTRC_BMP_MAPPED, (int) biWidth, (int) biHeight); + break; + case 24: /* RGB image */ + TRACEMS2(cinfo, 1, JTRC_BMP, (int) biWidth, (int) biHeight); + break; + case 32: /* RGB image + Alpha channel */ + TRACEMS2(cinfo, 1, JTRC_BMP, (int) biWidth, (int) biHeight); + break; + default: + ERREXIT(cinfo, JERR_BMP_BADDEPTH); + break; + } + if (biCompression != 0) + ERREXIT(cinfo, JERR_BMP_COMPRESSED); + + if (biXPelsPerMeter > 0 && biYPelsPerMeter > 0) { + /* Set JFIF density parameters from the BMP data */ + cinfo->X_density = (UINT16) (biXPelsPerMeter/100); /* 100 cm per meter */ + cinfo->Y_density = (UINT16) (biYPelsPerMeter/100); + cinfo->density_unit = 2; /* dots/cm */ + } + break; + default: + ERREXIT(cinfo, JERR_BMP_BADHEADER); + return; + } + + if (biWidth <= 0 || biHeight <= 0) + ERREXIT(cinfo, JERR_BMP_EMPTY); + if (biPlanes != 1) + ERREXIT(cinfo, JERR_BMP_BADPLANES); + + /* Compute distance to bitmap data --- will adjust for colormap below */ + bPad = bfOffBits - (headerSize + 14); + + /* Read the colormap, if any */ + if (mapentrysize > 0) { + if (biClrUsed <= 0) + biClrUsed = 256; /* assume it's 256 */ + else if (biClrUsed > 256) + ERREXIT(cinfo, JERR_BMP_BADCMAP); + /* Allocate space to store the colormap */ + source->colormap = (*cinfo->mem->alloc_sarray) + ((j_common_ptr) cinfo, JPOOL_IMAGE, + (JDIMENSION) biClrUsed, (JDIMENSION) 3); + /* and read it from the file */ + read_colormap(source, (int) biClrUsed, mapentrysize); + /* account for size of colormap */ + bPad -= biClrUsed * mapentrysize; + } + + /* Skip any remaining pad bytes */ + if (bPad < 0) /* incorrect bfOffBits value? */ + ERREXIT(cinfo, JERR_BMP_BADHEADER); + while (--bPad >= 0) { + (void) read_byte(source); + } + + /* Compute row width in file, including padding to 4-byte boundary */ + if (source->bits_per_pixel == 24) + row_width = (JDIMENSION) (biWidth * 3); + else if (source->bits_per_pixel == 32) + row_width = (JDIMENSION) (biWidth * 4); + else + row_width = (JDIMENSION) biWidth; + while ((row_width & 3) != 0) row_width++; + source->row_width = row_width; + + /* Allocate space for inversion array, prepare for preload pass */ + source->whole_image = (*cinfo->mem->request_virt_sarray) + ((j_common_ptr) cinfo, JPOOL_IMAGE, FALSE, + row_width, (JDIMENSION) biHeight, (JDIMENSION) 1); + source->pub.get_pixel_rows = preload_image; + if (cinfo->progress != NULL) { + cd_progress_ptr progress = (cd_progress_ptr) cinfo->progress; + progress->total_extra_passes++; /* count file input as separate pass */ + } + + /* Allocate one-row buffer for returned data */ + source->pub.buffer = (*cinfo->mem->alloc_sarray) + ((j_common_ptr) cinfo, JPOOL_IMAGE, + (JDIMENSION) (biWidth * 3), (JDIMENSION) 1); + source->pub.buffer_height = 1; + + cinfo->in_color_space = JCS_RGB; + cinfo->input_components = 3; + cinfo->data_precision = 8; + cinfo->image_width = (JDIMENSION) biWidth; + cinfo->image_height = (JDIMENSION) biHeight; +} + + +/* + * Finish up at the end of the file. + */ + +METHODDEF(void) +finish_input_bmp (j_compress_ptr cinfo, cjpeg_source_ptr sinfo) +{ + /* no work */ +} + + +/* + * The module selection routine for BMP format input. + */ + +GLOBAL(cjpeg_source_ptr) +jinit_read_bmp (j_compress_ptr cinfo) +{ + bmp_source_ptr source; + + /* Create module interface object */ + source = (bmp_source_ptr) + (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, + SIZEOF(bmp_source_struct)); + source->cinfo = cinfo; /* make back link for subroutines */ + /* Fill in method ptrs, except get_pixel_rows which start_input sets */ + source->pub.start_input = start_input_bmp; + source->pub.finish_input = finish_input_bmp; + + return (cjpeg_source_ptr) source; +} + +#endif /* BMP_SUPPORTED */ diff --git a/jpeg/rdcolmap.c b/jpeg/rdcolmap.c new file mode 100644 index 0000000..42b3437 --- /dev/null +++ b/jpeg/rdcolmap.c @@ -0,0 +1,253 @@ +/* + * rdcolmap.c + * + * Copyright (C) 1994-1996, Thomas G. Lane. + * This file is part of the Independent JPEG Group's software. + * For conditions of distribution and use, see the accompanying README file. + * + * This file implements djpeg's "-map file" switch. It reads a source image + * and constructs a colormap to be supplied to the JPEG decompressor. + * + * Currently, these file formats are supported for the map file: + * GIF: the contents of the GIF's global colormap are used. + * PPM (either text or raw flavor): the entire file is read and + * each unique pixel value is entered in the map. + * Note that reading a large PPM file will be horrendously slow. + * Typically, a PPM-format map file should contain just one pixel + * of each desired color. Such a file can be extracted from an + * ordinary image PPM file with ppmtomap(1). + * + * Rescaling a PPM that has a maxval unequal to MAXJSAMPLE is not + * currently implemented. + */ + +#include "cdjpeg.h" /* Common decls for cjpeg/djpeg applications */ + +#ifdef QUANT_2PASS_SUPPORTED /* otherwise can't quantize to supplied map */ + +/* Portions of this code are based on the PBMPLUS library, which is: +** +** Copyright (C) 1988 by Jef Poskanzer. +** +** Permission to use, copy, modify, and distribute this software and its +** documentation for any purpose and without fee is hereby granted, provided +** that the above copyright notice appear in all copies and that both that +** copyright notice and this permission notice appear in supporting +** documentation. This software is provided "as is" without express or +** implied warranty. +*/ + + +/* + * Add a (potentially) new color to the color map. + */ + +LOCAL(void) +add_map_entry (j_decompress_ptr cinfo, int R, int G, int B) +{ + JSAMPROW colormap0 = cinfo->colormap[0]; + JSAMPROW colormap1 = cinfo->colormap[1]; + JSAMPROW colormap2 = cinfo->colormap[2]; + int ncolors = cinfo->actual_number_of_colors; + int index; + + /* Check for duplicate color. */ + for (index = 0; index < ncolors; index++) { + if (GETJSAMPLE(colormap0[index]) == R && + GETJSAMPLE(colormap1[index]) == G && + GETJSAMPLE(colormap2[index]) == B) + return; /* color is already in map */ + } + + /* Check for map overflow. */ + if (ncolors >= (MAXJSAMPLE+1)) + ERREXIT1(cinfo, JERR_QUANT_MANY_COLORS, (MAXJSAMPLE+1)); + + /* OK, add color to map. */ + colormap0[ncolors] = (JSAMPLE) R; + colormap1[ncolors] = (JSAMPLE) G; + colormap2[ncolors] = (JSAMPLE) B; + cinfo->actual_number_of_colors++; +} + + +/* + * Extract color map from a GIF file. + */ + +LOCAL(void) +read_gif_map (j_decompress_ptr cinfo, FILE * infile) +{ + int header[13]; + int i, colormaplen; + int R, G, B; + + /* Initial 'G' has already been read by read_color_map */ + /* Read the rest of the GIF header and logical screen descriptor */ + for (i = 1; i < 13; i++) { + if ((header[i] = getc(infile)) == EOF) + ERREXIT(cinfo, JERR_BAD_CMAP_FILE); + } + + /* Verify GIF Header */ + if (header[1] != 'I' || header[2] != 'F') + ERREXIT(cinfo, JERR_BAD_CMAP_FILE); + + /* There must be a global color map. */ + if ((header[10] & 0x80) == 0) + ERREXIT(cinfo, JERR_BAD_CMAP_FILE); + + /* OK, fetch it. */ + colormaplen = 2 << (header[10] & 0x07); + + for (i = 0; i < colormaplen; i++) { + R = getc(infile); + G = getc(infile); + B = getc(infile); + if (R == EOF || G == EOF || B == EOF) + ERREXIT(cinfo, JERR_BAD_CMAP_FILE); + add_map_entry(cinfo, + R << (BITS_IN_JSAMPLE-8), + G << (BITS_IN_JSAMPLE-8), + B << (BITS_IN_JSAMPLE-8)); + } +} + + +/* Support routines for reading PPM */ + + +LOCAL(int) +pbm_getc (FILE * infile) +/* Read next char, skipping over any comments */ +/* A comment/newline sequence is returned as a newline */ +{ + register int ch; + + ch = getc(infile); + if (ch == '#') { + do { + ch = getc(infile); + } while (ch != '\n' && ch != EOF); + } + return ch; +} + + +LOCAL(unsigned int) +read_pbm_integer (j_decompress_ptr cinfo, FILE * infile) +/* Read an unsigned decimal integer from the PPM file */ +/* Swallows one trailing character after the integer */ +/* Note that on a 16-bit-int machine, only values up to 64k can be read. */ +/* This should not be a problem in practice. */ +{ + register int ch; + register unsigned int val; + + /* Skip any leading whitespace */ + do { + ch = pbm_getc(infile); + if (ch == EOF) + ERREXIT(cinfo, JERR_BAD_CMAP_FILE); + } while (ch == ' ' || ch == '\t' || ch == '\n' || ch == '\r'); + + if (ch < '0' || ch > '9') + ERREXIT(cinfo, JERR_BAD_CMAP_FILE); + + val = ch - '0'; + while ((ch = pbm_getc(infile)) >= '0' && ch <= '9') { + val *= 10; + val += ch - '0'; + } + return val; +} + + +/* + * Extract color map from a PPM file. + */ + +LOCAL(void) +read_ppm_map (j_decompress_ptr cinfo, FILE * infile) +{ + int c; + unsigned int w, h, maxval, row, col; + int R, G, B; + + /* Initial 'P' has already been read by read_color_map */ + c = getc(infile); /* save format discriminator for a sec */ + + /* while we fetch the remaining header info */ + w = read_pbm_integer(cinfo, infile); + h = read_pbm_integer(cinfo, infile); + maxval = read_pbm_integer(cinfo, infile); + + if (w <= 0 || h <= 0 || maxval <= 0) /* error check */ + ERREXIT(cinfo, JERR_BAD_CMAP_FILE); + + /* For now, we don't support rescaling from an unusual maxval. */ + if (maxval != (unsigned int) MAXJSAMPLE) + ERREXIT(cinfo, JERR_BAD_CMAP_FILE); + + switch (c) { + case '3': /* it's a text-format PPM file */ + for (row = 0; row < h; row++) { + for (col = 0; col < w; col++) { + R = read_pbm_integer(cinfo, infile); + G = read_pbm_integer(cinfo, infile); + B = read_pbm_integer(cinfo, infile); + add_map_entry(cinfo, R, G, B); + } + } + break; + + case '6': /* it's a raw-format PPM file */ + for (row = 0; row < h; row++) { + for (col = 0; col < w; col++) { + R = getc(infile); + G = getc(infile); + B = getc(infile); + if (R == EOF || G == EOF || B == EOF) + ERREXIT(cinfo, JERR_BAD_CMAP_FILE); + add_map_entry(cinfo, R, G, B); + } + } + break; + + default: + ERREXIT(cinfo, JERR_BAD_CMAP_FILE); + break; + } +} + + +/* + * Main entry point from djpeg.c. + * Input: opened input file (from file name argument on command line). + * Output: colormap and actual_number_of_colors fields are set in cinfo. + */ + +GLOBAL(void) +read_color_map (j_decompress_ptr cinfo, FILE * infile) +{ + /* Allocate space for a color map of maximum supported size. */ + cinfo->colormap = (*cinfo->mem->alloc_sarray) + ((j_common_ptr) cinfo, JPOOL_IMAGE, + (JDIMENSION) (MAXJSAMPLE+1), (JDIMENSION) 3); + cinfo->actual_number_of_colors = 0; /* initialize map to empty */ + + /* Read first byte to determine file format */ + switch (getc(infile)) { + case 'G': + read_gif_map(cinfo, infile); + break; + case 'P': + read_ppm_map(cinfo, infile); + break; + default: + ERREXIT(cinfo, JERR_BAD_CMAP_FILE); + break; + } +} + +#endif /* QUANT_2PASS_SUPPORTED */ diff --git a/jpeg/rdgif.c b/jpeg/rdgif.c new file mode 100644 index 0000000..b27c167 --- /dev/null +++ b/jpeg/rdgif.c @@ -0,0 +1,38 @@ +/* + * rdgif.c + * + * Copyright (C) 1991-1997, Thomas G. Lane. + * This file is part of the Independent JPEG Group's software. + * For conditions of distribution and use, see the accompanying README file. + * + * This file contains routines to read input images in GIF format. + * + ***************************************************************************** + * NOTE: to avoid entanglements with Unisys' patent on LZW compression, * + * the ability to read GIF files has been removed from the IJG distribution. * + * Sorry about that. * + ***************************************************************************** + * + * We are required to state that + * "The Graphics Interchange Format(c) is the Copyright property of + * CompuServe Incorporated. GIF(sm) is a Service Mark property of + * CompuServe Incorporated." + */ + +#include "cdjpeg.h" /* Common decls for cjpeg/djpeg applications */ + +#ifdef GIF_SUPPORTED + +/* + * The module selection routine for GIF format input. + */ + +GLOBAL(cjpeg_source_ptr) +jinit_read_gif (j_compress_ptr cinfo) +{ + fprintf(stderr, "GIF input is unsupported for legal reasons. Sorry.\n"); + exit(EXIT_FAILURE); + return NULL; /* keep compiler happy */ +} + +#endif /* GIF_SUPPORTED */ diff --git a/jpeg/rdjpgcom.1 b/jpeg/rdjpgcom.1 new file mode 100644 index 0000000..97611df --- /dev/null +++ b/jpeg/rdjpgcom.1 @@ -0,0 +1,63 @@ +.TH RDJPGCOM 1 "02 April 2009" +.SH NAME +rdjpgcom \- display text comments from a JPEG file +.SH SYNOPSIS +.B rdjpgcom +[ +.B \-raw +] +[ +.B \-verbose +] +[ +.I filename +] +.LP +.SH DESCRIPTION +.LP +.B rdjpgcom +reads the named JPEG/JFIF file, or the standard input if no file is named, +and prints any text comments found in the file on the standard output. +.PP +The JPEG standard allows "comment" (COM) blocks to occur within a JPEG file. +Although the standard doesn't actually define what COM blocks are for, they +are widely used to hold user-supplied text strings. This lets you add +annotations, titles, index terms, etc to your JPEG files, and later retrieve +them as text. COM blocks do not interfere with the image stored in the JPEG +file. The maximum size of a COM block is 64K, but you can have as many of +them as you like in one JPEG file. +.SH OPTIONS +.TP +.B \-raw +Normally +.B rdjpgcom +escapes non-printable characters in comments, for security reasons. +This option avoids that. +.PP +.B \-verbose +Causes +.B rdjpgcom +to also display the JPEG image dimensions. +.PP +Switch names may be abbreviated, and are not case sensitive. +.SH HINTS +.B rdjpgcom +does not depend on the IJG JPEG library. Its source code is intended as an +illustration of the minimum amount of code required to parse a JPEG file +header correctly. +.PP +In +.B \-verbose +mode, +.B rdjpgcom +will also attempt to print the contents of any "APP12" markers as text. +Some digital cameras produce APP12 markers containing useful textual +information. If you like, you can modify the source code to print +other APPn marker types as well. +.SH SEE ALSO +.BR cjpeg (1), +.BR djpeg (1), +.BR jpegtran (1), +.BR wrjpgcom (1) +.SH AUTHOR +Independent JPEG Group diff --git a/jpeg/rdjpgcom.c b/jpeg/rdjpgcom.c new file mode 100644 index 0000000..3719154 --- /dev/null +++ b/jpeg/rdjpgcom.c @@ -0,0 +1,515 @@ +/* + * rdjpgcom.c + * + * Copyright (C) 1994-1997, Thomas G. Lane. + * Modified 2009 by Bill Allombert, Guido Vollbeding. + * This file is part of the Independent JPEG Group's software. + * For conditions of distribution and use, see the accompanying README file. + * + * This file contains a very simple stand-alone application that displays + * the text in COM (comment) markers in a JFIF file. + * This may be useful as an example of the minimum logic needed to parse + * JPEG markers. + */ + +#define JPEG_CJPEG_DJPEG /* to get the command-line config symbols */ +#include "jinclude.h" /* get auto-config symbols, */ + +#ifdef HAVE_LOCALE_H +#include /* Bill Allombert: use locale for isprint */ +#endif +#include /* to declare isupper(), tolower() */ +#ifdef USE_SETMODE +#include /* to declare setmode()'s parameter macros */ +/* If you have setmode() but not , just delete this line: */ +#include /* to declare setmode() */ +#endif + +#ifdef USE_CCOMMAND /* command-line reader for Macintosh */ +#ifdef __MWERKS__ +#include /* Metrowerks needs this */ +#include /* ... and this */ +#endif +#ifdef THINK_C +#include /* Think declares it here */ +#endif +#endif + +#ifdef DONT_USE_B_MODE /* define mode parameters for fopen() */ +#define READ_BINARY "r" +#else +#ifdef VMS /* VMS is very nonstandard */ +#define READ_BINARY "rb", "ctx=stm" +#else /* standard ANSI-compliant case */ +#define READ_BINARY "rb" +#endif +#endif + +#ifndef EXIT_FAILURE /* define exit() codes if not provided */ +#define EXIT_FAILURE 1 +#endif +#ifndef EXIT_SUCCESS +#ifdef VMS +#define EXIT_SUCCESS 1 /* VMS is very nonstandard */ +#else +#define EXIT_SUCCESS 0 +#endif +#endif + + +/* + * These macros are used to read the input file. + * To reuse this code in another application, you might need to change these. + */ + +static FILE * infile; /* input JPEG file */ + +/* Return next input byte, or EOF if no more */ +#define NEXTBYTE() getc(infile) + + +/* Error exit handler */ +#define ERREXIT(msg) (fprintf(stderr, "%s\n", msg), exit(EXIT_FAILURE)) + + +/* Read one byte, testing for EOF */ +static int +read_1_byte (void) +{ + int c; + + c = NEXTBYTE(); + if (c == EOF) + ERREXIT("Premature EOF in JPEG file"); + return c; +} + +/* Read 2 bytes, convert to unsigned int */ +/* All 2-byte quantities in JPEG markers are MSB first */ +static unsigned int +read_2_bytes (void) +{ + int c1, c2; + + c1 = NEXTBYTE(); + if (c1 == EOF) + ERREXIT("Premature EOF in JPEG file"); + c2 = NEXTBYTE(); + if (c2 == EOF) + ERREXIT("Premature EOF in JPEG file"); + return (((unsigned int) c1) << 8) + ((unsigned int) c2); +} + + +/* + * JPEG markers consist of one or more 0xFF bytes, followed by a marker + * code byte (which is not an FF). Here are the marker codes of interest + * in this program. (See jdmarker.c for a more complete list.) + */ + +#define M_SOF0 0xC0 /* Start Of Frame N */ +#define M_SOF1 0xC1 /* N indicates which compression process */ +#define M_SOF2 0xC2 /* Only SOF0-SOF2 are now in common use */ +#define M_SOF3 0xC3 +#define M_SOF5 0xC5 /* NB: codes C4 and CC are NOT SOF markers */ +#define M_SOF6 0xC6 +#define M_SOF7 0xC7 +#define M_SOF9 0xC9 +#define M_SOF10 0xCA +#define M_SOF11 0xCB +#define M_SOF13 0xCD +#define M_SOF14 0xCE +#define M_SOF15 0xCF +#define M_SOI 0xD8 /* Start Of Image (beginning of datastream) */ +#define M_EOI 0xD9 /* End Of Image (end of datastream) */ +#define M_SOS 0xDA /* Start Of Scan (begins compressed data) */ +#define M_APP0 0xE0 /* Application-specific marker, type N */ +#define M_APP12 0xEC /* (we don't bother to list all 16 APPn's) */ +#define M_COM 0xFE /* COMment */ + + +/* + * Find the next JPEG marker and return its marker code. + * We expect at least one FF byte, possibly more if the compressor used FFs + * to pad the file. + * There could also be non-FF garbage between markers. The treatment of such + * garbage is unspecified; we choose to skip over it but emit a warning msg. + * NB: this routine must not be used after seeing SOS marker, since it will + * not deal correctly with FF/00 sequences in the compressed image data... + */ + +static int +next_marker (void) +{ + int c; + int discarded_bytes = 0; + + /* Find 0xFF byte; count and skip any non-FFs. */ + c = read_1_byte(); + while (c != 0xFF) { + discarded_bytes++; + c = read_1_byte(); + } + /* Get marker code byte, swallowing any duplicate FF bytes. Extra FFs + * are legal as pad bytes, so don't count them in discarded_bytes. + */ + do { + c = read_1_byte(); + } while (c == 0xFF); + + if (discarded_bytes != 0) { + fprintf(stderr, "Warning: garbage data found in JPEG file\n"); + } + + return c; +} + + +/* + * Read the initial marker, which should be SOI. + * For a JFIF file, the first two bytes of the file should be literally + * 0xFF M_SOI. To be more general, we could use next_marker, but if the + * input file weren't actually JPEG at all, next_marker might read the whole + * file and then return a misleading error message... + */ + +static int +first_marker (void) +{ + int c1, c2; + + c1 = NEXTBYTE(); + c2 = NEXTBYTE(); + if (c1 != 0xFF || c2 != M_SOI) + ERREXIT("Not a JPEG file"); + return c2; +} + + +/* + * Most types of marker are followed by a variable-length parameter segment. + * This routine skips over the parameters for any marker we don't otherwise + * want to process. + * Note that we MUST skip the parameter segment explicitly in order not to + * be fooled by 0xFF bytes that might appear within the parameter segment; + * such bytes do NOT introduce new markers. + */ + +static void +skip_variable (void) +/* Skip over an unknown or uninteresting variable-length marker */ +{ + unsigned int length; + + /* Get the marker parameter length count */ + length = read_2_bytes(); + /* Length includes itself, so must be at least 2 */ + if (length < 2) + ERREXIT("Erroneous JPEG marker length"); + length -= 2; + /* Skip over the remaining bytes */ + while (length > 0) { + (void) read_1_byte(); + length--; + } +} + + +/* + * Process a COM marker. + * We want to print out the marker contents as legible text; + * we must guard against non-text junk and varying newline representations. + */ + +static void +process_COM (int raw) +{ + unsigned int length; + int ch; + int lastch = 0; + + /* Bill Allombert: set locale properly for isprint */ +#ifdef HAVE_LOCALE_H + setlocale(LC_CTYPE, ""); +#endif + + /* Get the marker parameter length count */ + length = read_2_bytes(); + /* Length includes itself, so must be at least 2 */ + if (length < 2) + ERREXIT("Erroneous JPEG marker length"); + length -= 2; + + while (length > 0) { + ch = read_1_byte(); + if (raw) { + putc(ch, stdout); + /* Emit the character in a readable form. + * Nonprintables are converted to \nnn form, + * while \ is converted to \\. + * Newlines in CR, CR/LF, or LF form will be printed as one newline. + */ + } else if (ch == '\r') { + printf("\n"); + } else if (ch == '\n') { + if (lastch != '\r') + printf("\n"); + } else if (ch == '\\') { + printf("\\\\"); + } else if (isprint(ch)) { + putc(ch, stdout); + } else { + printf("\\%03o", ch); + } + lastch = ch; + length--; + } + printf("\n"); + + /* Bill Allombert: revert to C locale */ +#ifdef HAVE_LOCALE_H + setlocale(LC_CTYPE, "C"); +#endif +} + + +/* + * Process a SOFn marker. + * This code is only needed if you want to know the image dimensions... + */ + +static void +process_SOFn (int marker) +{ + unsigned int length; + unsigned int image_height, image_width; + int data_precision, num_components; + const char * process; + int ci; + + length = read_2_bytes(); /* usual parameter length count */ + + data_precision = read_1_byte(); + image_height = read_2_bytes(); + image_width = read_2_bytes(); + num_components = read_1_byte(); + + switch (marker) { + case M_SOF0: process = "Baseline"; break; + case M_SOF1: process = "Extended sequential"; break; + case M_SOF2: process = "Progressive"; break; + case M_SOF3: process = "Lossless"; break; + case M_SOF5: process = "Differential sequential"; break; + case M_SOF6: process = "Differential progressive"; break; + case M_SOF7: process = "Differential lossless"; break; + case M_SOF9: process = "Extended sequential, arithmetic coding"; break; + case M_SOF10: process = "Progressive, arithmetic coding"; break; + case M_SOF11: process = "Lossless, arithmetic coding"; break; + case M_SOF13: process = "Differential sequential, arithmetic coding"; break; + case M_SOF14: process = "Differential progressive, arithmetic coding"; break; + case M_SOF15: process = "Differential lossless, arithmetic coding"; break; + default: process = "Unknown"; break; + } + + printf("JPEG image is %uw * %uh, %d color components, %d bits per sample\n", + image_width, image_height, num_components, data_precision); + printf("JPEG process: %s\n", process); + + if (length != (unsigned int) (8 + num_components * 3)) + ERREXIT("Bogus SOF marker length"); + + for (ci = 0; ci < num_components; ci++) { + (void) read_1_byte(); /* Component ID code */ + (void) read_1_byte(); /* H, V sampling factors */ + (void) read_1_byte(); /* Quantization table number */ + } +} + + +/* + * Parse the marker stream until SOS or EOI is seen; + * display any COM markers. + * While the companion program wrjpgcom will always insert COM markers before + * SOFn, other implementations might not, so we scan to SOS before stopping. + * If we were only interested in the image dimensions, we would stop at SOFn. + * (Conversely, if we only cared about COM markers, there would be no need + * for special code to handle SOFn; we could treat it like other markers.) + */ + +static int +scan_JPEG_header (int verbose, int raw) +{ + int marker; + + /* Expect SOI at start of file */ + if (first_marker() != M_SOI) + ERREXIT("Expected SOI marker first"); + + /* Scan miscellaneous markers until we reach SOS. */ + for (;;) { + marker = next_marker(); + switch (marker) { + /* Note that marker codes 0xC4, 0xC8, 0xCC are not, and must not be, + * treated as SOFn. C4 in particular is actually DHT. + */ + case M_SOF0: /* Baseline */ + case M_SOF1: /* Extended sequential, Huffman */ + case M_SOF2: /* Progressive, Huffman */ + case M_SOF3: /* Lossless, Huffman */ + case M_SOF5: /* Differential sequential, Huffman */ + case M_SOF6: /* Differential progressive, Huffman */ + case M_SOF7: /* Differential lossless, Huffman */ + case M_SOF9: /* Extended sequential, arithmetic */ + case M_SOF10: /* Progressive, arithmetic */ + case M_SOF11: /* Lossless, arithmetic */ + case M_SOF13: /* Differential sequential, arithmetic */ + case M_SOF14: /* Differential progressive, arithmetic */ + case M_SOF15: /* Differential lossless, arithmetic */ + if (verbose) + process_SOFn(marker); + else + skip_variable(); + break; + + case M_SOS: /* stop before hitting compressed data */ + return marker; + + case M_EOI: /* in case it's a tables-only JPEG stream */ + return marker; + + case M_COM: + process_COM(raw); + break; + + case M_APP12: + /* Some digital camera makers put useful textual information into + * APP12 markers, so we print those out too when in -verbose mode. + */ + if (verbose) { + printf("APP12 contains:\n"); + process_COM(raw); + } else + skip_variable(); + break; + + default: /* Anything else just gets skipped */ + skip_variable(); /* we assume it has a parameter count... */ + break; + } + } /* end loop */ +} + + +/* Command line parsing code */ + +static const char * progname; /* program name for error messages */ + + +static void +usage (void) +/* complain about bad command line */ +{ + fprintf(stderr, "rdjpgcom displays any textual comments in a JPEG file.\n"); + + fprintf(stderr, "Usage: %s [switches] [inputfile]\n", progname); + + fprintf(stderr, "Switches (names may be abbreviated):\n"); + fprintf(stderr, " -raw Display non-printable characters in comments (unsafe)\n"); + fprintf(stderr, " -verbose Also display dimensions of JPEG image\n"); + + exit(EXIT_FAILURE); +} + + +static int +keymatch (char * arg, const char * keyword, int minchars) +/* Case-insensitive matching of (possibly abbreviated) keyword switches. */ +/* keyword is the constant keyword (must be lower case already), */ +/* minchars is length of minimum legal abbreviation. */ +{ + register int ca, ck; + register int nmatched = 0; + + while ((ca = *arg++) != '\0') { + if ((ck = *keyword++) == '\0') + return 0; /* arg longer than keyword, no good */ + if (isupper(ca)) /* force arg to lcase (assume ck is already) */ + ca = tolower(ca); + if (ca != ck) + return 0; /* no good */ + nmatched++; /* count matched characters */ + } + /* reached end of argument; fail if it's too short for unique abbrev */ + if (nmatched < minchars) + return 0; + return 1; /* A-OK */ +} + + +/* + * The main program. + */ + +int +main (int argc, char **argv) +{ + int argn; + char * arg; + int verbose = 0, raw = 0; + + /* On Mac, fetch a command line. */ +#ifdef USE_CCOMMAND + argc = ccommand(&argv); +#endif + + progname = argv[0]; + if (progname == NULL || progname[0] == 0) + progname = "rdjpgcom"; /* in case C library doesn't provide it */ + + /* Parse switches, if any */ + for (argn = 1; argn < argc; argn++) { + arg = argv[argn]; + if (arg[0] != '-') + break; /* not switch, must be file name */ + arg++; /* advance over '-' */ + if (keymatch(arg, "verbose", 1)) { + verbose++; + } else if (keymatch(arg, "raw", 1)) { + raw = 1; + } else + usage(); + } + + /* Open the input file. */ + /* Unix style: expect zero or one file name */ + if (argn < argc-1) { + fprintf(stderr, "%s: only one input file\n", progname); + usage(); + } + if (argn < argc) { + if ((infile = fopen(argv[argn], READ_BINARY)) == NULL) { + fprintf(stderr, "%s: can't open %s\n", progname, argv[argn]); + exit(EXIT_FAILURE); + } + } else { + /* default input file is stdin */ +#ifdef USE_SETMODE /* need to hack file mode? */ + setmode(fileno(stdin), O_BINARY); +#endif +#ifdef USE_FDOPEN /* need to re-open in binary mode? */ + if ((infile = fdopen(fileno(stdin), READ_BINARY)) == NULL) { + fprintf(stderr, "%s: can't open stdin\n", progname); + exit(EXIT_FAILURE); + } +#else + infile = stdin; +#endif + } + + /* Scan the JPEG headers. */ + (void) scan_JPEG_header(verbose, raw); + + /* All done. */ + exit(EXIT_SUCCESS); + return 0; /* suppress no-return-value warnings */ +} diff --git a/jpeg/rdppm.c b/jpeg/rdppm.c new file mode 100644 index 0000000..a757022 --- /dev/null +++ b/jpeg/rdppm.c @@ -0,0 +1,459 @@ +/* + * rdppm.c + * + * Copyright (C) 1991-1997, Thomas G. Lane. + * Modified 2009 by Bill Allombert, Guido Vollbeding. + * This file is part of the Independent JPEG Group's software. + * For conditions of distribution and use, see the accompanying README file. + * + * This file contains routines to read input images in PPM/PGM format. + * The extended 2-byte-per-sample raw PPM/PGM formats are supported. + * The PBMPLUS library is NOT required to compile this software + * (but it is highly useful as a set of PPM image manipulation programs). + * + * These routines may need modification for non-Unix environments or + * specialized applications. As they stand, they assume input from + * an ordinary stdio stream. They further assume that reading begins + * at the start of the file; start_input may need work if the + * user interface has already read some data (e.g., to determine that + * the file is indeed PPM format). + */ + +#include "cdjpeg.h" /* Common decls for cjpeg/djpeg applications */ + +#ifdef PPM_SUPPORTED + + +/* Portions of this code are based on the PBMPLUS library, which is: +** +** Copyright (C) 1988 by Jef Poskanzer. +** +** Permission to use, copy, modify, and distribute this software and its +** documentation for any purpose and without fee is hereby granted, provided +** that the above copyright notice appear in all copies and that both that +** copyright notice and this permission notice appear in supporting +** documentation. This software is provided "as is" without express or +** implied warranty. +*/ + + +/* Macros to deal with unsigned chars as efficiently as compiler allows */ + +#ifdef HAVE_UNSIGNED_CHAR +typedef unsigned char U_CHAR; +#define UCH(x) ((int) (x)) +#else /* !HAVE_UNSIGNED_CHAR */ +#ifdef CHAR_IS_UNSIGNED +typedef char U_CHAR; +#define UCH(x) ((int) (x)) +#else +typedef char U_CHAR; +#define UCH(x) ((int) (x) & 0xFF) +#endif +#endif /* HAVE_UNSIGNED_CHAR */ + + +#define ReadOK(file,buffer,len) (JFREAD(file,buffer,len) == ((size_t) (len))) + + +/* + * On most systems, reading individual bytes with getc() is drastically less + * efficient than buffering a row at a time with fread(). On PCs, we must + * allocate the buffer in near data space, because we are assuming small-data + * memory model, wherein fread() can't reach far memory. If you need to + * process very wide images on a PC, you might have to compile in large-memory + * model, or else replace fread() with a getc() loop --- which will be much + * slower. + */ + + +/* Private version of data source object */ + +typedef struct { + struct cjpeg_source_struct pub; /* public fields */ + + U_CHAR *iobuffer; /* non-FAR pointer to I/O buffer */ + JSAMPROW pixrow; /* FAR pointer to same */ + size_t buffer_width; /* width of I/O buffer */ + JSAMPLE *rescale; /* => maxval-remapping array, or NULL */ +} ppm_source_struct; + +typedef ppm_source_struct * ppm_source_ptr; + + +LOCAL(int) +pbm_getc (FILE * infile) +/* Read next char, skipping over any comments */ +/* A comment/newline sequence is returned as a newline */ +{ + register int ch; + + ch = getc(infile); + if (ch == '#') { + do { + ch = getc(infile); + } while (ch != '\n' && ch != EOF); + } + return ch; +} + + +LOCAL(unsigned int) +read_pbm_integer (j_compress_ptr cinfo, FILE * infile) +/* Read an unsigned decimal integer from the PPM file */ +/* Swallows one trailing character after the integer */ +/* Note that on a 16-bit-int machine, only values up to 64k can be read. */ +/* This should not be a problem in practice. */ +{ + register int ch; + register unsigned int val; + + /* Skip any leading whitespace */ + do { + ch = pbm_getc(infile); + if (ch == EOF) + ERREXIT(cinfo, JERR_INPUT_EOF); + } while (ch == ' ' || ch == '\t' || ch == '\n' || ch == '\r'); + + if (ch < '0' || ch > '9') + ERREXIT(cinfo, JERR_PPM_NONNUMERIC); + + val = ch - '0'; + while ((ch = pbm_getc(infile)) >= '0' && ch <= '9') { + val *= 10; + val += ch - '0'; + } + return val; +} + + +/* + * Read one row of pixels. + * + * We provide several different versions depending on input file format. + * In all cases, input is scaled to the size of JSAMPLE. + * + * A really fast path is provided for reading byte/sample raw files with + * maxval = MAXJSAMPLE, which is the normal case for 8-bit data. + */ + + +METHODDEF(JDIMENSION) +get_text_gray_row (j_compress_ptr cinfo, cjpeg_source_ptr sinfo) +/* This version is for reading text-format PGM files with any maxval */ +{ + ppm_source_ptr source = (ppm_source_ptr) sinfo; + FILE * infile = source->pub.input_file; + register JSAMPROW ptr; + register JSAMPLE *rescale = source->rescale; + JDIMENSION col; + + ptr = source->pub.buffer[0]; + for (col = cinfo->image_width; col > 0; col--) { + *ptr++ = rescale[read_pbm_integer(cinfo, infile)]; + } + return 1; +} + + +METHODDEF(JDIMENSION) +get_text_rgb_row (j_compress_ptr cinfo, cjpeg_source_ptr sinfo) +/* This version is for reading text-format PPM files with any maxval */ +{ + ppm_source_ptr source = (ppm_source_ptr) sinfo; + FILE * infile = source->pub.input_file; + register JSAMPROW ptr; + register JSAMPLE *rescale = source->rescale; + JDIMENSION col; + + ptr = source->pub.buffer[0]; + for (col = cinfo->image_width; col > 0; col--) { + *ptr++ = rescale[read_pbm_integer(cinfo, infile)]; + *ptr++ = rescale[read_pbm_integer(cinfo, infile)]; + *ptr++ = rescale[read_pbm_integer(cinfo, infile)]; + } + return 1; +} + + +METHODDEF(JDIMENSION) +get_scaled_gray_row (j_compress_ptr cinfo, cjpeg_source_ptr sinfo) +/* This version is for reading raw-byte-format PGM files with any maxval */ +{ + ppm_source_ptr source = (ppm_source_ptr) sinfo; + register JSAMPROW ptr; + register U_CHAR * bufferptr; + register JSAMPLE *rescale = source->rescale; + JDIMENSION col; + + if (! ReadOK(source->pub.input_file, source->iobuffer, source->buffer_width)) + ERREXIT(cinfo, JERR_INPUT_EOF); + ptr = source->pub.buffer[0]; + bufferptr = source->iobuffer; + for (col = cinfo->image_width; col > 0; col--) { + *ptr++ = rescale[UCH(*bufferptr++)]; + } + return 1; +} + + +METHODDEF(JDIMENSION) +get_scaled_rgb_row (j_compress_ptr cinfo, cjpeg_source_ptr sinfo) +/* This version is for reading raw-byte-format PPM files with any maxval */ +{ + ppm_source_ptr source = (ppm_source_ptr) sinfo; + register JSAMPROW ptr; + register U_CHAR * bufferptr; + register JSAMPLE *rescale = source->rescale; + JDIMENSION col; + + if (! ReadOK(source->pub.input_file, source->iobuffer, source->buffer_width)) + ERREXIT(cinfo, JERR_INPUT_EOF); + ptr = source->pub.buffer[0]; + bufferptr = source->iobuffer; + for (col = cinfo->image_width; col > 0; col--) { + *ptr++ = rescale[UCH(*bufferptr++)]; + *ptr++ = rescale[UCH(*bufferptr++)]; + *ptr++ = rescale[UCH(*bufferptr++)]; + } + return 1; +} + + +METHODDEF(JDIMENSION) +get_raw_row (j_compress_ptr cinfo, cjpeg_source_ptr sinfo) +/* This version is for reading raw-byte-format files with maxval = MAXJSAMPLE. + * In this case we just read right into the JSAMPLE buffer! + * Note that same code works for PPM and PGM files. + */ +{ + ppm_source_ptr source = (ppm_source_ptr) sinfo; + + if (! ReadOK(source->pub.input_file, source->iobuffer, source->buffer_width)) + ERREXIT(cinfo, JERR_INPUT_EOF); + return 1; +} + + +METHODDEF(JDIMENSION) +get_word_gray_row (j_compress_ptr cinfo, cjpeg_source_ptr sinfo) +/* This version is for reading raw-word-format PGM files with any maxval */ +{ + ppm_source_ptr source = (ppm_source_ptr) sinfo; + register JSAMPROW ptr; + register U_CHAR * bufferptr; + register JSAMPLE *rescale = source->rescale; + JDIMENSION col; + + if (! ReadOK(source->pub.input_file, source->iobuffer, source->buffer_width)) + ERREXIT(cinfo, JERR_INPUT_EOF); + ptr = source->pub.buffer[0]; + bufferptr = source->iobuffer; + for (col = cinfo->image_width; col > 0; col--) { + register int temp; + temp = UCH(*bufferptr++) << 8; + temp |= UCH(*bufferptr++); + *ptr++ = rescale[temp]; + } + return 1; +} + + +METHODDEF(JDIMENSION) +get_word_rgb_row (j_compress_ptr cinfo, cjpeg_source_ptr sinfo) +/* This version is for reading raw-word-format PPM files with any maxval */ +{ + ppm_source_ptr source = (ppm_source_ptr) sinfo; + register JSAMPROW ptr; + register U_CHAR * bufferptr; + register JSAMPLE *rescale = source->rescale; + JDIMENSION col; + + if (! ReadOK(source->pub.input_file, source->iobuffer, source->buffer_width)) + ERREXIT(cinfo, JERR_INPUT_EOF); + ptr = source->pub.buffer[0]; + bufferptr = source->iobuffer; + for (col = cinfo->image_width; col > 0; col--) { + register int temp; + temp = UCH(*bufferptr++) << 8; + temp |= UCH(*bufferptr++); + *ptr++ = rescale[temp]; + temp = UCH(*bufferptr++) << 8; + temp |= UCH(*bufferptr++); + *ptr++ = rescale[temp]; + temp = UCH(*bufferptr++) << 8; + temp |= UCH(*bufferptr++); + *ptr++ = rescale[temp]; + } + return 1; +} + + +/* + * Read the file header; return image size and component count. + */ + +METHODDEF(void) +start_input_ppm (j_compress_ptr cinfo, cjpeg_source_ptr sinfo) +{ + ppm_source_ptr source = (ppm_source_ptr) sinfo; + int c; + unsigned int w, h, maxval; + boolean need_iobuffer, use_raw_buffer, need_rescale; + + if (getc(source->pub.input_file) != 'P') + ERREXIT(cinfo, JERR_PPM_NOT); + + c = getc(source->pub.input_file); /* subformat discriminator character */ + + /* detect unsupported variants (ie, PBM) before trying to read header */ + switch (c) { + case '2': /* it's a text-format PGM file */ + case '3': /* it's a text-format PPM file */ + case '5': /* it's a raw-format PGM file */ + case '6': /* it's a raw-format PPM file */ + break; + default: + ERREXIT(cinfo, JERR_PPM_NOT); + break; + } + + /* fetch the remaining header info */ + w = read_pbm_integer(cinfo, source->pub.input_file); + h = read_pbm_integer(cinfo, source->pub.input_file); + maxval = read_pbm_integer(cinfo, source->pub.input_file); + + if (w <= 0 || h <= 0 || maxval <= 0) /* error check */ + ERREXIT(cinfo, JERR_PPM_NOT); + + cinfo->data_precision = BITS_IN_JSAMPLE; /* we always rescale data to this */ + cinfo->image_width = (JDIMENSION) w; + cinfo->image_height = (JDIMENSION) h; + + /* initialize flags to most common settings */ + need_iobuffer = TRUE; /* do we need an I/O buffer? */ + use_raw_buffer = FALSE; /* do we map input buffer onto I/O buffer? */ + need_rescale = TRUE; /* do we need a rescale array? */ + + switch (c) { + case '2': /* it's a text-format PGM file */ + cinfo->input_components = 1; + cinfo->in_color_space = JCS_GRAYSCALE; + TRACEMS2(cinfo, 1, JTRC_PGM_TEXT, w, h); + source->pub.get_pixel_rows = get_text_gray_row; + need_iobuffer = FALSE; + break; + + case '3': /* it's a text-format PPM file */ + cinfo->input_components = 3; + cinfo->in_color_space = JCS_RGB; + TRACEMS2(cinfo, 1, JTRC_PPM_TEXT, w, h); + source->pub.get_pixel_rows = get_text_rgb_row; + need_iobuffer = FALSE; + break; + + case '5': /* it's a raw-format PGM file */ + cinfo->input_components = 1; + cinfo->in_color_space = JCS_GRAYSCALE; + TRACEMS2(cinfo, 1, JTRC_PGM, w, h); + if (maxval > 255) { + source->pub.get_pixel_rows = get_word_gray_row; + } else if (maxval == MAXJSAMPLE && SIZEOF(JSAMPLE) == SIZEOF(U_CHAR)) { + source->pub.get_pixel_rows = get_raw_row; + use_raw_buffer = TRUE; + need_rescale = FALSE; + } else { + source->pub.get_pixel_rows = get_scaled_gray_row; + } + break; + + case '6': /* it's a raw-format PPM file */ + cinfo->input_components = 3; + cinfo->in_color_space = JCS_RGB; + TRACEMS2(cinfo, 1, JTRC_PPM, w, h); + if (maxval > 255) { + source->pub.get_pixel_rows = get_word_rgb_row; + } else if (maxval == MAXJSAMPLE && SIZEOF(JSAMPLE) == SIZEOF(U_CHAR)) { + source->pub.get_pixel_rows = get_raw_row; + use_raw_buffer = TRUE; + need_rescale = FALSE; + } else { + source->pub.get_pixel_rows = get_scaled_rgb_row; + } + break; + } + + /* Allocate space for I/O buffer: 1 or 3 bytes or words/pixel. */ + if (need_iobuffer) { + source->buffer_width = (size_t) w * cinfo->input_components * + ((maxval<=255) ? SIZEOF(U_CHAR) : (2*SIZEOF(U_CHAR))); + source->iobuffer = (U_CHAR *) + (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, + source->buffer_width); + } + + /* Create compressor input buffer. */ + if (use_raw_buffer) { + /* For unscaled raw-input case, we can just map it onto the I/O buffer. */ + /* Synthesize a JSAMPARRAY pointer structure */ + /* Cast here implies near->far pointer conversion on PCs */ + source->pixrow = (JSAMPROW) source->iobuffer; + source->pub.buffer = & source->pixrow; + source->pub.buffer_height = 1; + } else { + /* Need to translate anyway, so make a separate sample buffer. */ + source->pub.buffer = (*cinfo->mem->alloc_sarray) + ((j_common_ptr) cinfo, JPOOL_IMAGE, + (JDIMENSION) w * cinfo->input_components, (JDIMENSION) 1); + source->pub.buffer_height = 1; + } + + /* Compute the rescaling array if required. */ + if (need_rescale) { + INT32 val, half_maxval; + + /* On 16-bit-int machines we have to be careful of maxval = 65535 */ + source->rescale = (JSAMPLE *) + (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, + (size_t) (((long) maxval + 1L) * SIZEOF(JSAMPLE))); + half_maxval = maxval / 2; + for (val = 0; val <= (INT32) maxval; val++) { + /* The multiplication here must be done in 32 bits to avoid overflow */ + source->rescale[val] = (JSAMPLE) ((val*MAXJSAMPLE + half_maxval)/maxval); + } + } +} + + +/* + * Finish up at the end of the file. + */ + +METHODDEF(void) +finish_input_ppm (j_compress_ptr cinfo, cjpeg_source_ptr sinfo) +{ + /* no work */ +} + + +/* + * The module selection routine for PPM format input. + */ + +GLOBAL(cjpeg_source_ptr) +jinit_read_ppm (j_compress_ptr cinfo) +{ + ppm_source_ptr source; + + /* Create module interface object */ + source = (ppm_source_ptr) + (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, + SIZEOF(ppm_source_struct)); + /* Fill in method ptrs, except get_pixel_rows which start_input sets */ + source->pub.start_input = start_input_ppm; + source->pub.finish_input = finish_input_ppm; + + return (cjpeg_source_ptr) source; +} + +#endif /* PPM_SUPPORTED */ diff --git a/jpeg/rdrle.c b/jpeg/rdrle.c new file mode 100644 index 0000000..542bc37 --- /dev/null +++ b/jpeg/rdrle.c @@ -0,0 +1,387 @@ +/* + * rdrle.c + * + * Copyright (C) 1991-1996, Thomas G. Lane. + * This file is part of the Independent JPEG Group's software. + * For conditions of distribution and use, see the accompanying README file. + * + * This file contains routines to read input images in Utah RLE format. + * The Utah Raster Toolkit library is required (version 3.1 or later). + * + * These routines may need modification for non-Unix environments or + * specialized applications. As they stand, they assume input from + * an ordinary stdio stream. They further assume that reading begins + * at the start of the file; start_input may need work if the + * user interface has already read some data (e.g., to determine that + * the file is indeed RLE format). + * + * Based on code contributed by Mike Lijewski, + * with updates from Robert Hutchinson. + */ + +#include "cdjpeg.h" /* Common decls for cjpeg/djpeg applications */ + +#ifdef RLE_SUPPORTED + +/* rle.h is provided by the Utah Raster Toolkit. */ + +#include + +/* + * We assume that JSAMPLE has the same representation as rle_pixel, + * to wit, "unsigned char". Hence we can't cope with 12- or 16-bit samples. + */ + +#if BITS_IN_JSAMPLE != 8 + Sorry, this code only copes with 8-bit JSAMPLEs. /* deliberate syntax err */ +#endif + +/* + * We support the following types of RLE files: + * + * GRAYSCALE - 8 bits, no colormap + * MAPPEDGRAY - 8 bits, 1 channel colomap + * PSEUDOCOLOR - 8 bits, 3 channel colormap + * TRUECOLOR - 24 bits, 3 channel colormap + * DIRECTCOLOR - 24 bits, no colormap + * + * For now, we ignore any alpha channel in the image. + */ + +typedef enum + { GRAYSCALE, MAPPEDGRAY, PSEUDOCOLOR, TRUECOLOR, DIRECTCOLOR } rle_kind; + + +/* + * Since RLE stores scanlines bottom-to-top, we have to invert the image + * to conform to JPEG's top-to-bottom order. To do this, we read the + * incoming image into a virtual array on the first get_pixel_rows call, + * then fetch the required row from the virtual array on subsequent calls. + */ + +typedef struct _rle_source_struct * rle_source_ptr; + +typedef struct _rle_source_struct { + struct cjpeg_source_struct pub; /* public fields */ + + rle_kind visual; /* actual type of input file */ + jvirt_sarray_ptr image; /* virtual array to hold the image */ + JDIMENSION row; /* current row # in the virtual array */ + rle_hdr header; /* Input file information */ + rle_pixel** rle_row; /* holds a row returned by rle_getrow() */ + +} rle_source_struct; + + +/* + * Read the file header; return image size and component count. + */ + +METHODDEF(void) +start_input_rle (j_compress_ptr cinfo, cjpeg_source_ptr sinfo) +{ + rle_source_ptr source = (rle_source_ptr) sinfo; + JDIMENSION width, height; +#ifdef PROGRESS_REPORT + cd_progress_ptr progress = (cd_progress_ptr) cinfo->progress; +#endif + + /* Use RLE library routine to get the header info */ + source->header = *rle_hdr_init(NULL); + source->header.rle_file = source->pub.input_file; + switch (rle_get_setup(&(source->header))) { + case RLE_SUCCESS: + /* A-OK */ + break; + case RLE_NOT_RLE: + ERREXIT(cinfo, JERR_RLE_NOT); + break; + case RLE_NO_SPACE: + ERREXIT(cinfo, JERR_RLE_MEM); + break; + case RLE_EMPTY: + ERREXIT(cinfo, JERR_RLE_EMPTY); + break; + case RLE_EOF: + ERREXIT(cinfo, JERR_RLE_EOF); + break; + default: + ERREXIT(cinfo, JERR_RLE_BADERROR); + break; + } + + /* Figure out what we have, set private vars and return values accordingly */ + + width = source->header.xmax - source->header.xmin + 1; + height = source->header.ymax - source->header.ymin + 1; + source->header.xmin = 0; /* realign horizontally */ + source->header.xmax = width-1; + + cinfo->image_width = width; + cinfo->image_height = height; + cinfo->data_precision = 8; /* we can only handle 8 bit data */ + + if (source->header.ncolors == 1 && source->header.ncmap == 0) { + source->visual = GRAYSCALE; + TRACEMS2(cinfo, 1, JTRC_RLE_GRAY, width, height); + } else if (source->header.ncolors == 1 && source->header.ncmap == 1) { + source->visual = MAPPEDGRAY; + TRACEMS3(cinfo, 1, JTRC_RLE_MAPGRAY, width, height, + 1 << source->header.cmaplen); + } else if (source->header.ncolors == 1 && source->header.ncmap == 3) { + source->visual = PSEUDOCOLOR; + TRACEMS3(cinfo, 1, JTRC_RLE_MAPPED, width, height, + 1 << source->header.cmaplen); + } else if (source->header.ncolors == 3 && source->header.ncmap == 3) { + source->visual = TRUECOLOR; + TRACEMS3(cinfo, 1, JTRC_RLE_FULLMAP, width, height, + 1 << source->header.cmaplen); + } else if (source->header.ncolors == 3 && source->header.ncmap == 0) { + source->visual = DIRECTCOLOR; + TRACEMS2(cinfo, 1, JTRC_RLE, width, height); + } else + ERREXIT(cinfo, JERR_RLE_UNSUPPORTED); + + if (source->visual == GRAYSCALE || source->visual == MAPPEDGRAY) { + cinfo->in_color_space = JCS_GRAYSCALE; + cinfo->input_components = 1; + } else { + cinfo->in_color_space = JCS_RGB; + cinfo->input_components = 3; + } + + /* + * A place to hold each scanline while it's converted. + * (GRAYSCALE scanlines don't need converting) + */ + if (source->visual != GRAYSCALE) { + source->rle_row = (rle_pixel**) (*cinfo->mem->alloc_sarray) + ((j_common_ptr) cinfo, JPOOL_IMAGE, + (JDIMENSION) width, (JDIMENSION) cinfo->input_components); + } + + /* request a virtual array to hold the image */ + source->image = (*cinfo->mem->request_virt_sarray) + ((j_common_ptr) cinfo, JPOOL_IMAGE, FALSE, + (JDIMENSION) (width * source->header.ncolors), + (JDIMENSION) height, (JDIMENSION) 1); + +#ifdef PROGRESS_REPORT + if (progress != NULL) { + /* count file input as separate pass */ + progress->total_extra_passes++; + } +#endif + + source->pub.buffer_height = 1; +} + + +/* + * Read one row of pixels. + * Called only after load_image has read the image into the virtual array. + * Used for GRAYSCALE, MAPPEDGRAY, TRUECOLOR, and DIRECTCOLOR images. + */ + +METHODDEF(JDIMENSION) +get_rle_row (j_compress_ptr cinfo, cjpeg_source_ptr sinfo) +{ + rle_source_ptr source = (rle_source_ptr) sinfo; + + source->row--; + source->pub.buffer = (*cinfo->mem->access_virt_sarray) + ((j_common_ptr) cinfo, source->image, source->row, (JDIMENSION) 1, FALSE); + + return 1; +} + +/* + * Read one row of pixels. + * Called only after load_image has read the image into the virtual array. + * Used for PSEUDOCOLOR images. + */ + +METHODDEF(JDIMENSION) +get_pseudocolor_row (j_compress_ptr cinfo, cjpeg_source_ptr sinfo) +{ + rle_source_ptr source = (rle_source_ptr) sinfo; + JSAMPROW src_row, dest_row; + JDIMENSION col; + rle_map *colormap; + int val; + + colormap = source->header.cmap; + dest_row = source->pub.buffer[0]; + source->row--; + src_row = * (*cinfo->mem->access_virt_sarray) + ((j_common_ptr) cinfo, source->image, source->row, (JDIMENSION) 1, FALSE); + + for (col = cinfo->image_width; col > 0; col--) { + val = GETJSAMPLE(*src_row++); + *dest_row++ = (JSAMPLE) (colormap[val ] >> 8); + *dest_row++ = (JSAMPLE) (colormap[val + 256] >> 8); + *dest_row++ = (JSAMPLE) (colormap[val + 512] >> 8); + } + + return 1; +} + + +/* + * Load the image into a virtual array. We have to do this because RLE + * files start at the lower left while the JPEG standard has them starting + * in the upper left. This is called the first time we want to get a row + * of input. What we do is load the RLE data into the array and then call + * the appropriate routine to read one row from the array. Before returning, + * we set source->pub.get_pixel_rows so that subsequent calls go straight to + * the appropriate row-reading routine. + */ + +METHODDEF(JDIMENSION) +load_image (j_compress_ptr cinfo, cjpeg_source_ptr sinfo) +{ + rle_source_ptr source = (rle_source_ptr) sinfo; + JDIMENSION row, col; + JSAMPROW scanline, red_ptr, green_ptr, blue_ptr; + rle_pixel **rle_row; + rle_map *colormap; + char channel; +#ifdef PROGRESS_REPORT + cd_progress_ptr progress = (cd_progress_ptr) cinfo->progress; +#endif + + colormap = source->header.cmap; + rle_row = source->rle_row; + + /* Read the RLE data into our virtual array. + * We assume here that (a) rle_pixel is represented the same as JSAMPLE, + * and (b) we are not on a machine where FAR pointers differ from regular. + */ + RLE_CLR_BIT(source->header, RLE_ALPHA); /* don't read the alpha channel */ + +#ifdef PROGRESS_REPORT + if (progress != NULL) { + progress->pub.pass_limit = cinfo->image_height; + progress->pub.pass_counter = 0; + (*progress->pub.progress_monitor) ((j_common_ptr) cinfo); + } +#endif + + switch (source->visual) { + + case GRAYSCALE: + case PSEUDOCOLOR: + for (row = 0; row < cinfo->image_height; row++) { + rle_row = (rle_pixel **) (*cinfo->mem->access_virt_sarray) + ((j_common_ptr) cinfo, source->image, row, (JDIMENSION) 1, TRUE); + rle_getrow(&source->header, rle_row); +#ifdef PROGRESS_REPORT + if (progress != NULL) { + progress->pub.pass_counter++; + (*progress->pub.progress_monitor) ((j_common_ptr) cinfo); + } +#endif + } + break; + + case MAPPEDGRAY: + case TRUECOLOR: + for (row = 0; row < cinfo->image_height; row++) { + scanline = * (*cinfo->mem->access_virt_sarray) + ((j_common_ptr) cinfo, source->image, row, (JDIMENSION) 1, TRUE); + rle_row = source->rle_row; + rle_getrow(&source->header, rle_row); + + for (col = 0; col < cinfo->image_width; col++) { + for (channel = 0; channel < source->header.ncolors; channel++) { + *scanline++ = (JSAMPLE) + (colormap[GETJSAMPLE(rle_row[channel][col]) + 256 * channel] >> 8); + } + } + +#ifdef PROGRESS_REPORT + if (progress != NULL) { + progress->pub.pass_counter++; + (*progress->pub.progress_monitor) ((j_common_ptr) cinfo); + } +#endif + } + break; + + case DIRECTCOLOR: + for (row = 0; row < cinfo->image_height; row++) { + scanline = * (*cinfo->mem->access_virt_sarray) + ((j_common_ptr) cinfo, source->image, row, (JDIMENSION) 1, TRUE); + rle_getrow(&source->header, rle_row); + + red_ptr = rle_row[0]; + green_ptr = rle_row[1]; + blue_ptr = rle_row[2]; + + for (col = cinfo->image_width; col > 0; col--) { + *scanline++ = *red_ptr++; + *scanline++ = *green_ptr++; + *scanline++ = *blue_ptr++; + } + +#ifdef PROGRESS_REPORT + if (progress != NULL) { + progress->pub.pass_counter++; + (*progress->pub.progress_monitor) ((j_common_ptr) cinfo); + } +#endif + } + } + +#ifdef PROGRESS_REPORT + if (progress != NULL) + progress->completed_extra_passes++; +#endif + + /* Set up to call proper row-extraction routine in future */ + if (source->visual == PSEUDOCOLOR) { + source->pub.buffer = source->rle_row; + source->pub.get_pixel_rows = get_pseudocolor_row; + } else { + source->pub.get_pixel_rows = get_rle_row; + } + source->row = cinfo->image_height; + + /* And fetch the topmost (bottommost) row */ + return (*source->pub.get_pixel_rows) (cinfo, sinfo); +} + + +/* + * Finish up at the end of the file. + */ + +METHODDEF(void) +finish_input_rle (j_compress_ptr cinfo, cjpeg_source_ptr sinfo) +{ + /* no work */ +} + + +/* + * The module selection routine for RLE format input. + */ + +GLOBAL(cjpeg_source_ptr) +jinit_read_rle (j_compress_ptr cinfo) +{ + rle_source_ptr source; + + /* Create module interface object */ + source = (rle_source_ptr) + (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, + SIZEOF(rle_source_struct)); + /* Fill in method ptrs */ + source->pub.start_input = start_input_rle; + source->pub.finish_input = finish_input_rle; + source->pub.get_pixel_rows = load_image; + + return (cjpeg_source_ptr) source; +} + +#endif /* RLE_SUPPORTED */ diff --git a/jpeg/rdswitch.c b/jpeg/rdswitch.c new file mode 100644 index 0000000..7a839af --- /dev/null +++ b/jpeg/rdswitch.c @@ -0,0 +1,365 @@ +/* + * rdswitch.c + * + * Copyright (C) 1991-1996, Thomas G. Lane. + * This file is part of the Independent JPEG Group's software. + * For conditions of distribution and use, see the accompanying README file. + * + * This file contains routines to process some of cjpeg's more complicated + * command-line switches. Switches processed here are: + * -qtables file Read quantization tables from text file + * -scans file Read scan script from text file + * -quality N[,N,...] Set quality ratings + * -qslots N[,N,...] Set component quantization table selectors + * -sample HxV[,HxV,...] Set component sampling factors + */ + +#include "cdjpeg.h" /* Common decls for cjpeg/djpeg applications */ +#include /* to declare isdigit(), isspace() */ + + +LOCAL(int) +text_getc (FILE * file) +/* Read next char, skipping over any comments (# to end of line) */ +/* A comment/newline sequence is returned as a newline */ +{ + register int ch; + + ch = getc(file); + if (ch == '#') { + do { + ch = getc(file); + } while (ch != '\n' && ch != EOF); + } + return ch; +} + + +LOCAL(boolean) +read_text_integer (FILE * file, long * result, int * termchar) +/* Read an unsigned decimal integer from a file, store it in result */ +/* Reads one trailing character after the integer; returns it in termchar */ +{ + register int ch; + register long val; + + /* Skip any leading whitespace, detect EOF */ + do { + ch = text_getc(file); + if (ch == EOF) { + *termchar = ch; + return FALSE; + } + } while (isspace(ch)); + + if (! isdigit(ch)) { + *termchar = ch; + return FALSE; + } + + val = ch - '0'; + while ((ch = text_getc(file)) != EOF) { + if (! isdigit(ch)) + break; + val *= 10; + val += ch - '0'; + } + *result = val; + *termchar = ch; + return TRUE; +} + + +GLOBAL(boolean) +read_quant_tables (j_compress_ptr cinfo, char * filename, boolean force_baseline) +/* Read a set of quantization tables from the specified file. + * The file is plain ASCII text: decimal numbers with whitespace between. + * Comments preceded by '#' may be included in the file. + * There may be one to NUM_QUANT_TBLS tables in the file, each of 64 values. + * The tables are implicitly numbered 0,1,etc. + * NOTE: does not affect the qslots mapping, which will default to selecting + * table 0 for luminance (or primary) components, 1 for chrominance components. + * You must use -qslots if you want a different component->table mapping. + */ +{ + FILE * fp; + int tblno, i, termchar; + long val; + unsigned int table[DCTSIZE2]; + + if ((fp = fopen(filename, "r")) == NULL) { + fprintf(stderr, "Can't open table file %s\n", filename); + return FALSE; + } + tblno = 0; + + while (read_text_integer(fp, &val, &termchar)) { /* read 1st element of table */ + if (tblno >= NUM_QUANT_TBLS) { + fprintf(stderr, "Too many tables in file %s\n", filename); + fclose(fp); + return FALSE; + } + table[0] = (unsigned int) val; + for (i = 1; i < DCTSIZE2; i++) { + if (! read_text_integer(fp, &val, &termchar)) { + fprintf(stderr, "Invalid table data in file %s\n", filename); + fclose(fp); + return FALSE; + } + table[i] = (unsigned int) val; + } + jpeg_add_quant_table(cinfo, tblno, table, cinfo->q_scale_factor[tblno], + force_baseline); + tblno++; + } + + if (termchar != EOF) { + fprintf(stderr, "Non-numeric data in file %s\n", filename); + fclose(fp); + return FALSE; + } + + fclose(fp); + return TRUE; +} + + +#ifdef C_MULTISCAN_FILES_SUPPORTED + +LOCAL(boolean) +read_scan_integer (FILE * file, long * result, int * termchar) +/* Variant of read_text_integer that always looks for a non-space termchar; + * this simplifies parsing of punctuation in scan scripts. + */ +{ + register int ch; + + if (! read_text_integer(file, result, termchar)) + return FALSE; + ch = *termchar; + while (ch != EOF && isspace(ch)) + ch = text_getc(file); + if (isdigit(ch)) { /* oops, put it back */ + if (ungetc(ch, file) == EOF) + return FALSE; + ch = ' '; + } else { + /* Any separators other than ';' and ':' are ignored; + * this allows user to insert commas, etc, if desired. + */ + if (ch != EOF && ch != ';' && ch != ':') + ch = ' '; + } + *termchar = ch; + return TRUE; +} + + +GLOBAL(boolean) +read_scan_script (j_compress_ptr cinfo, char * filename) +/* Read a scan script from the specified text file. + * Each entry in the file defines one scan to be emitted. + * Entries are separated by semicolons ';'. + * An entry contains one to four component indexes, + * optionally followed by a colon ':' and four progressive-JPEG parameters. + * The component indexes denote which component(s) are to be transmitted + * in the current scan. The first component has index 0. + * Sequential JPEG is used if the progressive-JPEG parameters are omitted. + * The file is free format text: any whitespace may appear between numbers + * and the ':' and ';' punctuation marks. Also, other punctuation (such + * as commas or dashes) can be placed between numbers if desired. + * Comments preceded by '#' may be included in the file. + * Note: we do very little validity checking here; + * jcmaster.c will validate the script parameters. + */ +{ + FILE * fp; + int scanno, ncomps, termchar; + long val; + jpeg_scan_info * scanptr; +#define MAX_SCANS 100 /* quite arbitrary limit */ + jpeg_scan_info scans[MAX_SCANS]; + + if ((fp = fopen(filename, "r")) == NULL) { + fprintf(stderr, "Can't open scan definition file %s\n", filename); + return FALSE; + } + scanptr = scans; + scanno = 0; + + while (read_scan_integer(fp, &val, &termchar)) { + if (scanno >= MAX_SCANS) { + fprintf(stderr, "Too many scans defined in file %s\n", filename); + fclose(fp); + return FALSE; + } + scanptr->component_index[0] = (int) val; + ncomps = 1; + while (termchar == ' ') { + if (ncomps >= MAX_COMPS_IN_SCAN) { + fprintf(stderr, "Too many components in one scan in file %s\n", + filename); + fclose(fp); + return FALSE; + } + if (! read_scan_integer(fp, &val, &termchar)) + goto bogus; + scanptr->component_index[ncomps] = (int) val; + ncomps++; + } + scanptr->comps_in_scan = ncomps; + if (termchar == ':') { + if (! read_scan_integer(fp, &val, &termchar) || termchar != ' ') + goto bogus; + scanptr->Ss = (int) val; + if (! read_scan_integer(fp, &val, &termchar) || termchar != ' ') + goto bogus; + scanptr->Se = (int) val; + if (! read_scan_integer(fp, &val, &termchar) || termchar != ' ') + goto bogus; + scanptr->Ah = (int) val; + if (! read_scan_integer(fp, &val, &termchar)) + goto bogus; + scanptr->Al = (int) val; + } else { + /* set non-progressive parameters */ + scanptr->Ss = 0; + scanptr->Se = DCTSIZE2-1; + scanptr->Ah = 0; + scanptr->Al = 0; + } + if (termchar != ';' && termchar != EOF) { +bogus: + fprintf(stderr, "Invalid scan entry format in file %s\n", filename); + fclose(fp); + return FALSE; + } + scanptr++, scanno++; + } + + if (termchar != EOF) { + fprintf(stderr, "Non-numeric data in file %s\n", filename); + fclose(fp); + return FALSE; + } + + if (scanno > 0) { + /* Stash completed scan list in cinfo structure. + * NOTE: for cjpeg's use, JPOOL_IMAGE is the right lifetime for this data, + * but if you want to compress multiple images you'd want JPOOL_PERMANENT. + */ + scanptr = (jpeg_scan_info *) + (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, + scanno * SIZEOF(jpeg_scan_info)); + MEMCOPY(scanptr, scans, scanno * SIZEOF(jpeg_scan_info)); + cinfo->scan_info = scanptr; + cinfo->num_scans = scanno; + } + + fclose(fp); + return TRUE; +} + +#endif /* C_MULTISCAN_FILES_SUPPORTED */ + + +GLOBAL(boolean) +set_quality_ratings (j_compress_ptr cinfo, char *arg, boolean force_baseline) +/* Process a quality-ratings parameter string, of the form + * N[,N,...] + * If there are more q-table slots than parameters, the last value is replicated. + */ +{ + int val = 75; /* default value */ + int tblno; + char ch; + + for (tblno = 0; tblno < NUM_QUANT_TBLS; tblno++) { + if (*arg) { + ch = ','; /* if not set by sscanf, will be ',' */ + if (sscanf(arg, "%d%c", &val, &ch) < 1) + return FALSE; + if (ch != ',') /* syntax check */ + return FALSE; + /* Convert user 0-100 rating to percentage scaling */ + cinfo->q_scale_factor[tblno] = jpeg_quality_scaling(val); + while (*arg && *arg++ != ',') /* advance to next segment of arg string */ + ; + } else { + /* reached end of parameter, set remaining factors to last value */ + cinfo->q_scale_factor[tblno] = jpeg_quality_scaling(val); + } + } + jpeg_default_qtables(cinfo, force_baseline); + return TRUE; +} + + +GLOBAL(boolean) +set_quant_slots (j_compress_ptr cinfo, char *arg) +/* Process a quantization-table-selectors parameter string, of the form + * N[,N,...] + * If there are more components than parameters, the last value is replicated. + */ +{ + int val = 0; /* default table # */ + int ci; + char ch; + + for (ci = 0; ci < MAX_COMPONENTS; ci++) { + if (*arg) { + ch = ','; /* if not set by sscanf, will be ',' */ + if (sscanf(arg, "%d%c", &val, &ch) < 1) + return FALSE; + if (ch != ',') /* syntax check */ + return FALSE; + if (val < 0 || val >= NUM_QUANT_TBLS) { + fprintf(stderr, "JPEG quantization tables are numbered 0..%d\n", + NUM_QUANT_TBLS-1); + return FALSE; + } + cinfo->comp_info[ci].quant_tbl_no = val; + while (*arg && *arg++ != ',') /* advance to next segment of arg string */ + ; + } else { + /* reached end of parameter, set remaining components to last table */ + cinfo->comp_info[ci].quant_tbl_no = val; + } + } + return TRUE; +} + + +GLOBAL(boolean) +set_sample_factors (j_compress_ptr cinfo, char *arg) +/* Process a sample-factors parameter string, of the form + * HxV[,HxV,...] + * If there are more components than parameters, "1x1" is assumed for the rest. + */ +{ + int ci, val1, val2; + char ch1, ch2; + + for (ci = 0; ci < MAX_COMPONENTS; ci++) { + if (*arg) { + ch2 = ','; /* if not set by sscanf, will be ',' */ + if (sscanf(arg, "%d%c%d%c", &val1, &ch1, &val2, &ch2) < 3) + return FALSE; + if ((ch1 != 'x' && ch1 != 'X') || ch2 != ',') /* syntax check */ + return FALSE; + if (val1 <= 0 || val1 > 4 || val2 <= 0 || val2 > 4) { + fprintf(stderr, "JPEG sampling factors must be 1..4\n"); + return FALSE; + } + cinfo->comp_info[ci].h_samp_factor = val1; + cinfo->comp_info[ci].v_samp_factor = val2; + while (*arg && *arg++ != ',') /* advance to next segment of arg string */ + ; + } else { + /* reached end of parameter, set remaining components to 1x1 sampling */ + cinfo->comp_info[ci].h_samp_factor = 1; + cinfo->comp_info[ci].v_samp_factor = 1; + } + } + return TRUE; +} diff --git a/jpeg/rdtarga.c b/jpeg/rdtarga.c new file mode 100644 index 0000000..4c2cd26 --- /dev/null +++ b/jpeg/rdtarga.c @@ -0,0 +1,500 @@ +/* + * rdtarga.c + * + * Copyright (C) 1991-1996, Thomas G. Lane. + * This file is part of the Independent JPEG Group's software. + * For conditions of distribution and use, see the accompanying README file. + * + * This file contains routines to read input images in Targa format. + * + * These routines may need modification for non-Unix environments or + * specialized applications. As they stand, they assume input from + * an ordinary stdio stream. They further assume that reading begins + * at the start of the file; start_input may need work if the + * user interface has already read some data (e.g., to determine that + * the file is indeed Targa format). + * + * Based on code contributed by Lee Daniel Crocker. + */ + +#include "cdjpeg.h" /* Common decls for cjpeg/djpeg applications */ + +#ifdef TARGA_SUPPORTED + + +/* Macros to deal with unsigned chars as efficiently as compiler allows */ + +#ifdef HAVE_UNSIGNED_CHAR +typedef unsigned char U_CHAR; +#define UCH(x) ((int) (x)) +#else /* !HAVE_UNSIGNED_CHAR */ +#ifdef CHAR_IS_UNSIGNED +typedef char U_CHAR; +#define UCH(x) ((int) (x)) +#else +typedef char U_CHAR; +#define UCH(x) ((int) (x) & 0xFF) +#endif +#endif /* HAVE_UNSIGNED_CHAR */ + + +#define ReadOK(file,buffer,len) (JFREAD(file,buffer,len) == ((size_t) (len))) + + +/* Private version of data source object */ + +typedef struct _tga_source_struct * tga_source_ptr; + +typedef struct _tga_source_struct { + struct cjpeg_source_struct pub; /* public fields */ + + j_compress_ptr cinfo; /* back link saves passing separate parm */ + + JSAMPARRAY colormap; /* Targa colormap (converted to my format) */ + + jvirt_sarray_ptr whole_image; /* Needed if funny input row order */ + JDIMENSION current_row; /* Current logical row number to read */ + + /* Pointer to routine to extract next Targa pixel from input file */ + JMETHOD(void, read_pixel, (tga_source_ptr sinfo)); + + /* Result of read_pixel is delivered here: */ + U_CHAR tga_pixel[4]; + + int pixel_size; /* Bytes per Targa pixel (1 to 4) */ + + /* State info for reading RLE-coded pixels; both counts must be init to 0 */ + int block_count; /* # of pixels remaining in RLE block */ + int dup_pixel_count; /* # of times to duplicate previous pixel */ + + /* This saves the correct pixel-row-expansion method for preload_image */ + JMETHOD(JDIMENSION, get_pixel_rows, (j_compress_ptr cinfo, + cjpeg_source_ptr sinfo)); +} tga_source_struct; + + +/* For expanding 5-bit pixel values to 8-bit with best rounding */ + +static const UINT8 c5to8bits[32] = { + 0, 8, 16, 25, 33, 41, 49, 58, + 66, 74, 82, 90, 99, 107, 115, 123, + 132, 140, 148, 156, 165, 173, 181, 189, + 197, 206, 214, 222, 230, 239, 247, 255 +}; + + + +LOCAL(int) +read_byte (tga_source_ptr sinfo) +/* Read next byte from Targa file */ +{ + register FILE *infile = sinfo->pub.input_file; + register int c; + + if ((c = getc(infile)) == EOF) + ERREXIT(sinfo->cinfo, JERR_INPUT_EOF); + return c; +} + + +LOCAL(void) +read_colormap (tga_source_ptr sinfo, int cmaplen, int mapentrysize) +/* Read the colormap from a Targa file */ +{ + int i; + + /* Presently only handles 24-bit BGR format */ + if (mapentrysize != 24) + ERREXIT(sinfo->cinfo, JERR_TGA_BADCMAP); + + for (i = 0; i < cmaplen; i++) { + sinfo->colormap[2][i] = (JSAMPLE) read_byte(sinfo); + sinfo->colormap[1][i] = (JSAMPLE) read_byte(sinfo); + sinfo->colormap[0][i] = (JSAMPLE) read_byte(sinfo); + } +} + + +/* + * read_pixel methods: get a single pixel from Targa file into tga_pixel[] + */ + +METHODDEF(void) +read_non_rle_pixel (tga_source_ptr sinfo) +/* Read one Targa pixel from the input file; no RLE expansion */ +{ + register FILE *infile = sinfo->pub.input_file; + register int i; + + for (i = 0; i < sinfo->pixel_size; i++) { + sinfo->tga_pixel[i] = (U_CHAR) getc(infile); + } +} + + +METHODDEF(void) +read_rle_pixel (tga_source_ptr sinfo) +/* Read one Targa pixel from the input file, expanding RLE data as needed */ +{ + register FILE *infile = sinfo->pub.input_file; + register int i; + + /* Duplicate previously read pixel? */ + if (sinfo->dup_pixel_count > 0) { + sinfo->dup_pixel_count--; + return; + } + + /* Time to read RLE block header? */ + if (--sinfo->block_count < 0) { /* decrement pixels remaining in block */ + i = read_byte(sinfo); + if (i & 0x80) { /* Start of duplicate-pixel block? */ + sinfo->dup_pixel_count = i & 0x7F; /* number of dups after this one */ + sinfo->block_count = 0; /* then read new block header */ + } else { + sinfo->block_count = i & 0x7F; /* number of pixels after this one */ + } + } + + /* Read next pixel */ + for (i = 0; i < sinfo->pixel_size; i++) { + sinfo->tga_pixel[i] = (U_CHAR) getc(infile); + } +} + + +/* + * Read one row of pixels. + * + * We provide several different versions depending on input file format. + */ + + +METHODDEF(JDIMENSION) +get_8bit_gray_row (j_compress_ptr cinfo, cjpeg_source_ptr sinfo) +/* This version is for reading 8-bit grayscale pixels */ +{ + tga_source_ptr source = (tga_source_ptr) sinfo; + register JSAMPROW ptr; + register JDIMENSION col; + + ptr = source->pub.buffer[0]; + for (col = cinfo->image_width; col > 0; col--) { + (*source->read_pixel) (source); /* Load next pixel into tga_pixel */ + *ptr++ = (JSAMPLE) UCH(source->tga_pixel[0]); + } + return 1; +} + +METHODDEF(JDIMENSION) +get_8bit_row (j_compress_ptr cinfo, cjpeg_source_ptr sinfo) +/* This version is for reading 8-bit colormap indexes */ +{ + tga_source_ptr source = (tga_source_ptr) sinfo; + register int t; + register JSAMPROW ptr; + register JDIMENSION col; + register JSAMPARRAY colormap = source->colormap; + + ptr = source->pub.buffer[0]; + for (col = cinfo->image_width; col > 0; col--) { + (*source->read_pixel) (source); /* Load next pixel into tga_pixel */ + t = UCH(source->tga_pixel[0]); + *ptr++ = colormap[0][t]; + *ptr++ = colormap[1][t]; + *ptr++ = colormap[2][t]; + } + return 1; +} + +METHODDEF(JDIMENSION) +get_16bit_row (j_compress_ptr cinfo, cjpeg_source_ptr sinfo) +/* This version is for reading 16-bit pixels */ +{ + tga_source_ptr source = (tga_source_ptr) sinfo; + register int t; + register JSAMPROW ptr; + register JDIMENSION col; + + ptr = source->pub.buffer[0]; + for (col = cinfo->image_width; col > 0; col--) { + (*source->read_pixel) (source); /* Load next pixel into tga_pixel */ + t = UCH(source->tga_pixel[0]); + t += UCH(source->tga_pixel[1]) << 8; + /* We expand 5 bit data to 8 bit sample width. + * The format of the 16-bit (LSB first) input word is + * xRRRRRGGGGGBBBBB + */ + ptr[2] = (JSAMPLE) c5to8bits[t & 0x1F]; + t >>= 5; + ptr[1] = (JSAMPLE) c5to8bits[t & 0x1F]; + t >>= 5; + ptr[0] = (JSAMPLE) c5to8bits[t & 0x1F]; + ptr += 3; + } + return 1; +} + +METHODDEF(JDIMENSION) +get_24bit_row (j_compress_ptr cinfo, cjpeg_source_ptr sinfo) +/* This version is for reading 24-bit pixels */ +{ + tga_source_ptr source = (tga_source_ptr) sinfo; + register JSAMPROW ptr; + register JDIMENSION col; + + ptr = source->pub.buffer[0]; + for (col = cinfo->image_width; col > 0; col--) { + (*source->read_pixel) (source); /* Load next pixel into tga_pixel */ + *ptr++ = (JSAMPLE) UCH(source->tga_pixel[2]); /* change BGR to RGB order */ + *ptr++ = (JSAMPLE) UCH(source->tga_pixel[1]); + *ptr++ = (JSAMPLE) UCH(source->tga_pixel[0]); + } + return 1; +} + +/* + * Targa also defines a 32-bit pixel format with order B,G,R,A. + * We presently ignore the attribute byte, so the code for reading + * these pixels is identical to the 24-bit routine above. + * This works because the actual pixel length is only known to read_pixel. + */ + +#define get_32bit_row get_24bit_row + + +/* + * This method is for re-reading the input data in standard top-down + * row order. The entire image has already been read into whole_image + * with proper conversion of pixel format, but it's in a funny row order. + */ + +METHODDEF(JDIMENSION) +get_memory_row (j_compress_ptr cinfo, cjpeg_source_ptr sinfo) +{ + tga_source_ptr source = (tga_source_ptr) sinfo; + JDIMENSION source_row; + + /* Compute row of source that maps to current_row of normal order */ + /* For now, assume image is bottom-up and not interlaced. */ + /* NEEDS WORK to support interlaced images! */ + source_row = cinfo->image_height - source->current_row - 1; + + /* Fetch that row from virtual array */ + source->pub.buffer = (*cinfo->mem->access_virt_sarray) + ((j_common_ptr) cinfo, source->whole_image, + source_row, (JDIMENSION) 1, FALSE); + + source->current_row++; + return 1; +} + + +/* + * This method loads the image into whole_image during the first call on + * get_pixel_rows. The get_pixel_rows pointer is then adjusted to call + * get_memory_row on subsequent calls. + */ + +METHODDEF(JDIMENSION) +preload_image (j_compress_ptr cinfo, cjpeg_source_ptr sinfo) +{ + tga_source_ptr source = (tga_source_ptr) sinfo; + JDIMENSION row; + cd_progress_ptr progress = (cd_progress_ptr) cinfo->progress; + + /* Read the data into a virtual array in input-file row order. */ + for (row = 0; row < cinfo->image_height; row++) { + if (progress != NULL) { + progress->pub.pass_counter = (long) row; + progress->pub.pass_limit = (long) cinfo->image_height; + (*progress->pub.progress_monitor) ((j_common_ptr) cinfo); + } + source->pub.buffer = (*cinfo->mem->access_virt_sarray) + ((j_common_ptr) cinfo, source->whole_image, row, (JDIMENSION) 1, TRUE); + (*source->get_pixel_rows) (cinfo, sinfo); + } + if (progress != NULL) + progress->completed_extra_passes++; + + /* Set up to read from the virtual array in unscrambled order */ + source->pub.get_pixel_rows = get_memory_row; + source->current_row = 0; + /* And read the first row */ + return get_memory_row(cinfo, sinfo); +} + + +/* + * Read the file header; return image size and component count. + */ + +METHODDEF(void) +start_input_tga (j_compress_ptr cinfo, cjpeg_source_ptr sinfo) +{ + tga_source_ptr source = (tga_source_ptr) sinfo; + U_CHAR targaheader[18]; + int idlen, cmaptype, subtype, flags, interlace_type, components; + unsigned int width, height, maplen; + boolean is_bottom_up; + +#define GET_2B(offset) ((unsigned int) UCH(targaheader[offset]) + \ + (((unsigned int) UCH(targaheader[offset+1])) << 8)) + + if (! ReadOK(source->pub.input_file, targaheader, 18)) + ERREXIT(cinfo, JERR_INPUT_EOF); + + /* Pretend "15-bit" pixels are 16-bit --- we ignore attribute bit anyway */ + if (targaheader[16] == 15) + targaheader[16] = 16; + + idlen = UCH(targaheader[0]); + cmaptype = UCH(targaheader[1]); + subtype = UCH(targaheader[2]); + maplen = GET_2B(5); + width = GET_2B(12); + height = GET_2B(14); + source->pixel_size = UCH(targaheader[16]) >> 3; + flags = UCH(targaheader[17]); /* Image Descriptor byte */ + + is_bottom_up = ((flags & 0x20) == 0); /* bit 5 set => top-down */ + interlace_type = flags >> 6; /* bits 6/7 are interlace code */ + + if (cmaptype > 1 || /* cmaptype must be 0 or 1 */ + source->pixel_size < 1 || source->pixel_size > 4 || + (UCH(targaheader[16]) & 7) != 0 || /* bits/pixel must be multiple of 8 */ + interlace_type != 0) /* currently don't allow interlaced image */ + ERREXIT(cinfo, JERR_TGA_BADPARMS); + + if (subtype > 8) { + /* It's an RLE-coded file */ + source->read_pixel = read_rle_pixel; + source->block_count = source->dup_pixel_count = 0; + subtype -= 8; + } else { + /* Non-RLE file */ + source->read_pixel = read_non_rle_pixel; + } + + /* Now should have subtype 1, 2, or 3 */ + components = 3; /* until proven different */ + cinfo->in_color_space = JCS_RGB; + + switch (subtype) { + case 1: /* Colormapped image */ + if (source->pixel_size == 1 && cmaptype == 1) + source->get_pixel_rows = get_8bit_row; + else + ERREXIT(cinfo, JERR_TGA_BADPARMS); + TRACEMS2(cinfo, 1, JTRC_TGA_MAPPED, width, height); + break; + case 2: /* RGB image */ + switch (source->pixel_size) { + case 2: + source->get_pixel_rows = get_16bit_row; + break; + case 3: + source->get_pixel_rows = get_24bit_row; + break; + case 4: + source->get_pixel_rows = get_32bit_row; + break; + default: + ERREXIT(cinfo, JERR_TGA_BADPARMS); + break; + } + TRACEMS2(cinfo, 1, JTRC_TGA, width, height); + break; + case 3: /* Grayscale image */ + components = 1; + cinfo->in_color_space = JCS_GRAYSCALE; + if (source->pixel_size == 1) + source->get_pixel_rows = get_8bit_gray_row; + else + ERREXIT(cinfo, JERR_TGA_BADPARMS); + TRACEMS2(cinfo, 1, JTRC_TGA_GRAY, width, height); + break; + default: + ERREXIT(cinfo, JERR_TGA_BADPARMS); + break; + } + + if (is_bottom_up) { + /* Create a virtual array to buffer the upside-down image. */ + source->whole_image = (*cinfo->mem->request_virt_sarray) + ((j_common_ptr) cinfo, JPOOL_IMAGE, FALSE, + (JDIMENSION) width * components, (JDIMENSION) height, (JDIMENSION) 1); + if (cinfo->progress != NULL) { + cd_progress_ptr progress = (cd_progress_ptr) cinfo->progress; + progress->total_extra_passes++; /* count file input as separate pass */ + } + /* source->pub.buffer will point to the virtual array. */ + source->pub.buffer_height = 1; /* in case anyone looks at it */ + source->pub.get_pixel_rows = preload_image; + } else { + /* Don't need a virtual array, but do need a one-row input buffer. */ + source->whole_image = NULL; + source->pub.buffer = (*cinfo->mem->alloc_sarray) + ((j_common_ptr) cinfo, JPOOL_IMAGE, + (JDIMENSION) width * components, (JDIMENSION) 1); + source->pub.buffer_height = 1; + source->pub.get_pixel_rows = source->get_pixel_rows; + } + + while (idlen--) /* Throw away ID field */ + (void) read_byte(source); + + if (maplen > 0) { + if (maplen > 256 || GET_2B(3) != 0) + ERREXIT(cinfo, JERR_TGA_BADCMAP); + /* Allocate space to store the colormap */ + source->colormap = (*cinfo->mem->alloc_sarray) + ((j_common_ptr) cinfo, JPOOL_IMAGE, (JDIMENSION) maplen, (JDIMENSION) 3); + /* and read it from the file */ + read_colormap(source, (int) maplen, UCH(targaheader[7])); + } else { + if (cmaptype) /* but you promised a cmap! */ + ERREXIT(cinfo, JERR_TGA_BADPARMS); + source->colormap = NULL; + } + + cinfo->input_components = components; + cinfo->data_precision = 8; + cinfo->image_width = width; + cinfo->image_height = height; +} + + +/* + * Finish up at the end of the file. + */ + +METHODDEF(void) +finish_input_tga (j_compress_ptr cinfo, cjpeg_source_ptr sinfo) +{ + /* no work */ +} + + +/* + * The module selection routine for Targa format input. + */ + +GLOBAL(cjpeg_source_ptr) +jinit_read_targa (j_compress_ptr cinfo) +{ + tga_source_ptr source; + + /* Create module interface object */ + source = (tga_source_ptr) + (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, + SIZEOF(tga_source_struct)); + source->cinfo = cinfo; /* make back link for subroutines */ + /* Fill in method ptrs, except get_pixel_rows which start_input sets */ + source->pub.start_input = start_input_tga; + source->pub.finish_input = finish_input_tga; + + return (cjpeg_source_ptr) source; +} + +#endif /* TARGA_SUPPORTED */ diff --git a/jpeg/readme.dos b/jpeg/readme.dos new file mode 100644 index 0000000..3267876 --- /dev/null +++ b/jpeg/readme.dos @@ -0,0 +1,15 @@ +This archive contains a DOS-friendly version of the Independent JPEG Group's +source code. It differs from the normal distribution in that: + +1. The archive format is zip rather than tar+gzip. You should be able to +unpack it with PKUNZIP (2.04g or later) or Info-Zip's unzip or 7-Zip. + +2. Newlines have been converted from Unix (LF) to DOS (CR/LF) style in all +text files, but not in the binary files (test*.*). + +3. Object files have been included for jmemdosa.asm. See jdosaobj.txt. + +Please see the main README file for the primary documentation. + +If you'd rather have a non-DOSified archive, see the ARCHIVE LOCATIONS section +of README. diff --git a/jpeg/structure.txt b/jpeg/structure.txt new file mode 100644 index 0000000..44e48ca --- /dev/null +++ b/jpeg/structure.txt @@ -0,0 +1,941 @@ +IJG JPEG LIBRARY: SYSTEM ARCHITECTURE + +Copyright (C) 1991-2012, Thomas G. Lane, Guido Vollbeding. +This file is part of the Independent JPEG Group's software. +For conditions of distribution and use, see the accompanying README file. + + +This file provides an overview of the architecture of the IJG JPEG software; +that is, the functions of the various modules in the system and the interfaces +between modules. For more precise details about any data structure or calling +convention, see the include files and comments in the source code. + +We assume that the reader is already somewhat familiar with the JPEG standard. +The README file includes references for learning about JPEG. The file +libjpeg.txt describes the library from the viewpoint of an application +programmer using the library; it's best to read that file before this one. +Also, the file coderules.txt describes the coding style conventions we use. + +In this document, JPEG-specific terminology follows the JPEG standard: + A "component" means a color channel, e.g., Red or Luminance. + A "sample" is a single component value (i.e., one number in the image data). + A "coefficient" is a frequency coefficient (a DCT transform output number). + A "block" is an array of samples or coefficients. + An "MCU" (minimum coded unit) is an interleaved set of blocks of size + determined by the sampling factors, or a single block in a + noninterleaved scan. +We do not use the terms "pixel" and "sample" interchangeably. When we say +pixel, we mean an element of the full-size image, while a sample is an element +of the downsampled image. Thus the number of samples may vary across +components while the number of pixels does not. (This terminology is not used +rigorously throughout the code, but it is used in places where confusion would +otherwise result.) + + +*** System features *** + +The IJG distribution contains two parts: + * A subroutine library for JPEG compression and decompression. + * cjpeg/djpeg, two sample applications that use the library to transform + JFIF JPEG files to and from several other image formats. +cjpeg/djpeg are of no great intellectual complexity: they merely add a simple +command-line user interface and I/O routines for several uncompressed image +formats. This document concentrates on the library itself. + +We desire the library to be capable of supporting all JPEG baseline, extended +sequential, and progressive DCT processes. The library does not support the +hierarchical or lossless processes defined in the standard. + +Within these limits, any set of compression parameters allowed by the JPEG +spec should be readable for decompression. (We can be more restrictive about +what formats we can generate.) Although the system design allows for all +parameter values, some uncommon settings are not yet implemented and may +never be; nonintegral sampling ratios are the prime example. Furthermore, +we treat 8-bit vs. 12-bit data precision as a compile-time switch, not a +run-time option, because most machines can store 8-bit pixels much more +compactly than 12-bit. + +By itself, the library handles only interchange JPEG datastreams --- in +particular the widely used JFIF file format. The library can be used by +surrounding code to process interchange or abbreviated JPEG datastreams that +are embedded in more complex file formats. (For example, libtiff uses this +library to implement JPEG compression within the TIFF file format.) + +The library includes a substantial amount of code that is not covered by the +JPEG standard but is necessary for typical applications of JPEG. These +functions preprocess the image before JPEG compression or postprocess it after +decompression. They include colorspace conversion, downsampling/upsampling, +and color quantization. This code can be omitted if not needed. + +A wide range of quality vs. speed tradeoffs are possible in JPEG processing, +and even more so in decompression postprocessing. The decompression library +provides multiple implementations that cover most of the useful tradeoffs, +ranging from very-high-quality down to fast-preview operation. On the +compression side we have generally not provided low-quality choices, since +compression is normally less time-critical. It should be understood that the +low-quality modes may not meet the JPEG standard's accuracy requirements; +nonetheless, they are useful for viewers. + + +*** Portability issues *** + +Portability is an essential requirement for the library. The key portability +issues that show up at the level of system architecture are: + +1. Memory usage. We want the code to be able to run on PC-class machines +with limited memory. Images should therefore be processed sequentially (in +strips), to avoid holding the whole image in memory at once. Where a +full-image buffer is necessary, we should be able to use either virtual memory +or temporary files. + +2. Near/far pointer distinction. To run efficiently on 80x86 machines, the +code should distinguish "small" objects (kept in near data space) from +"large" ones (kept in far data space). This is an annoying restriction, but +fortunately it does not impact code quality for less brain-damaged machines, +and the source code clutter turns out to be minimal with sufficient use of +pointer typedefs. + +3. Data precision. We assume that "char" is at least 8 bits, "short" and +"int" at least 16, "long" at least 32. The code will work fine with larger +data sizes, although memory may be used inefficiently in some cases. However, +the JPEG compressed datastream must ultimately appear on external storage as a +sequence of 8-bit bytes if it is to conform to the standard. This may pose a +problem on machines where char is wider than 8 bits. The library represents +compressed data as an array of values of typedef JOCTET. If no data type +exactly 8 bits wide is available, custom data source and data destination +modules must be written to unpack and pack the chosen JOCTET datatype into +8-bit external representation. + + +*** System overview *** + +The compressor and decompressor are each divided into two main sections: +the JPEG compressor or decompressor proper, and the preprocessing or +postprocessing functions. The interface between these two sections is the +image data that the official JPEG spec regards as its input or output: this +data is in the colorspace to be used for compression, and it is downsampled +to the sampling factors to be used. The preprocessing and postprocessing +steps are responsible for converting a normal image representation to or from +this form. (Those few applications that want to deal with YCbCr downsampled +data can skip the preprocessing or postprocessing step.) + +Looking more closely, the compressor library contains the following main +elements: + + Preprocessing: + * Color space conversion (e.g., RGB to YCbCr). + * Edge expansion and downsampling. Optionally, this step can do simple + smoothing --- this is often helpful for low-quality source data. + JPEG proper: + * MCU assembly, DCT, quantization. + * Entropy coding (sequential or progressive, Huffman or arithmetic). + +In addition to these modules we need overall control, marker generation, +and support code (memory management & error handling). There is also a +module responsible for physically writing the output data --- typically +this is just an interface to fwrite(), but some applications may need to +do something else with the data. + +The decompressor library contains the following main elements: + + JPEG proper: + * Entropy decoding (sequential or progressive, Huffman or arithmetic). + * Dequantization, inverse DCT, MCU disassembly. + Postprocessing: + * Upsampling. Optionally, this step may be able to do more general + rescaling of the image. + * Color space conversion (e.g., YCbCr to RGB). This step may also + provide gamma adjustment [ currently it does not ]. + * Optional color quantization (e.g., reduction to 256 colors). + * Optional color precision reduction (e.g., 24-bit to 15-bit color). + [This feature is not currently implemented.] + +We also need overall control, marker parsing, and a data source module. +The support code (memory management & error handling) can be shared with +the compression half of the library. + +There may be several implementations of each of these elements, particularly +in the decompressor, where a wide range of speed/quality tradeoffs is very +useful. It must be understood that some of the best speedups involve +merging adjacent steps in the pipeline. For example, upsampling, color space +conversion, and color quantization might all be done at once when using a +low-quality ordered-dither technique. The system architecture is designed to +allow such merging where appropriate. + + +Note: it is convenient to regard edge expansion (padding to block boundaries) +as a preprocessing/postprocessing function, even though the JPEG spec includes +it in compression/decompression. We do this because downsampling/upsampling +can be simplified a little if they work on padded data: it's not necessary to +have special cases at the right and bottom edges. Therefore the interface +buffer is always an integral number of blocks wide and high, and we expect +compression preprocessing to pad the source data properly. Padding will occur +only to the next block (N-sample) boundary. In an interleaved-scan situation, +additional dummy blocks may be used to fill out MCUs, but the MCU assembly and +disassembly logic will create or discard these blocks internally. (This is +advantageous for speed reasons, since we avoid DCTing the dummy blocks. +It also permits a small reduction in file size, because the compressor can +choose dummy block contents so as to minimize their size in compressed form. +Finally, it makes the interface buffer specification independent of whether +the file is actually interleaved or not.) Applications that wish to deal +directly with the downsampled data must provide similar buffering and padding +for odd-sized images. + + +*** Poor man's object-oriented programming *** + +It should be clear by now that we have a lot of quasi-independent processing +steps, many of which have several possible behaviors. To avoid cluttering the +code with lots of switch statements, we use a simple form of object-style +programming to separate out the different possibilities. + +For example, two different color quantization algorithms could be implemented +as two separate modules that present the same external interface; at runtime, +the calling code will access the proper module indirectly through an "object". + +We can get the limited features we need while staying within portable C. +The basic tool is a function pointer. An "object" is just a struct +containing one or more function pointer fields, each of which corresponds to +a method name in real object-oriented languages. During initialization we +fill in the function pointers with references to whichever module we have +determined we need to use in this run. Then invocation of the module is done +by indirecting through a function pointer; on most machines this is no more +expensive than a switch statement, which would be the only other way of +making the required run-time choice. The really significant benefit, of +course, is keeping the source code clean and well structured. + +We can also arrange to have private storage that varies between different +implementations of the same kind of object. We do this by making all the +module-specific object structs be separately allocated entities, which will +be accessed via pointers in the master compression or decompression struct. +The "public" fields or methods for a given kind of object are specified by +a commonly known struct. But a module's initialization code can allocate +a larger struct that contains the common struct as its first member, plus +additional private fields. With appropriate pointer casting, the module's +internal functions can access these private fields. (For a simple example, +see jdatadst.c, which implements the external interface specified by struct +jpeg_destination_mgr, but adds extra fields.) + +(Of course this would all be a lot easier if we were using C++, but we are +not yet prepared to assume that everyone has a C++ compiler.) + +An important benefit of this scheme is that it is easy to provide multiple +versions of any method, each tuned to a particular case. While a lot of +precalculation might be done to select an optimal implementation of a method, +the cost per invocation is constant. For example, the upsampling step might +have a "generic" method, plus one or more "hardwired" methods for the most +popular sampling factors; the hardwired methods would be faster because they'd +use straight-line code instead of for-loops. The cost to determine which +method to use is paid only once, at startup, and the selection criteria are +hidden from the callers of the method. + +This plan differs a little bit from usual object-oriented structures, in that +only one instance of each object class will exist during execution. The +reason for having the class structure is that on different runs we may create +different instances (choose to execute different modules). You can think of +the term "method" as denoting the common interface presented by a particular +set of interchangeable functions, and "object" as denoting a group of related +methods, or the total shared interface behavior of a group of modules. + + +*** Overall control structure *** + +We previously mentioned the need for overall control logic in the compression +and decompression libraries. In IJG implementations prior to v5, overall +control was mostly provided by "pipeline control" modules, which proved to be +large, unwieldy, and hard to understand. To improve the situation, the +control logic has been subdivided into multiple modules. The control modules +consist of: + +1. Master control for module selection and initialization. This has two +responsibilities: + + 1A. Startup initialization at the beginning of image processing. + The individual processing modules to be used in this run are selected + and given initialization calls. + + 1B. Per-pass control. This determines how many passes will be performed + and calls each active processing module to configure itself + appropriately at the beginning of each pass. End-of-pass processing, + where necessary, is also invoked from the master control module. + + Method selection is partially distributed, in that a particular processing + module may contain several possible implementations of a particular method, + which it will select among when given its initialization call. The master + control code need only be concerned with decisions that affect more than + one module. + +2. Data buffering control. A separate control module exists for each + inter-processing-step data buffer. This module is responsible for + invoking the processing steps that write or read that data buffer. + +Each buffer controller sees the world as follows: + +input data => processing step A => buffer => processing step B => output data + | | | + ------------------ controller ------------------ + +The controller knows the dataflow requirements of steps A and B: how much data +they want to accept in one chunk and how much they output in one chunk. Its +function is to manage its buffer and call A and B at the proper times. + +A data buffer control module may itself be viewed as a processing step by a +higher-level control module; thus the control modules form a binary tree with +elementary processing steps at the leaves of the tree. + +The control modules are objects. A considerable amount of flexibility can +be had by replacing implementations of a control module. For example: +* Merging of adjacent steps in the pipeline is done by replacing a control + module and its pair of processing-step modules with a single processing- + step module. (Hence the possible merges are determined by the tree of + control modules.) +* In some processing modes, a given interstep buffer need only be a "strip" + buffer large enough to accommodate the desired data chunk sizes. In other + modes, a full-image buffer is needed and several passes are required. + The control module determines which kind of buffer is used and manipulates + virtual array buffers as needed. One or both processing steps may be + unaware of the multi-pass behavior. + +In theory, we might be able to make all of the data buffer controllers +interchangeable and provide just one set of implementations for all. In +practice, each one contains considerable special-case processing for its +particular job. The buffer controller concept should be regarded as an +overall system structuring principle, not as a complete description of the +task performed by any one controller. + + +*** Compression object structure *** + +Here is a sketch of the logical structure of the JPEG compression library: + + |-- Colorspace conversion + |-- Preprocessing controller --| + | |-- Downsampling +Main controller --| + | |-- Forward DCT, quantize + |-- Coefficient controller --| + |-- Entropy encoding + +This sketch also describes the flow of control (subroutine calls) during +typical image data processing. Each of the components shown in the diagram is +an "object" which may have several different implementations available. One +or more source code files contain the actual implementation(s) of each object. + +The objects shown above are: + +* Main controller: buffer controller for the subsampled-data buffer, which + holds the preprocessed input data. This controller invokes preprocessing to + fill the subsampled-data buffer, and JPEG compression to empty it. There is + usually no need for a full-image buffer here; a strip buffer is adequate. + +* Preprocessing controller: buffer controller for the downsampling input data + buffer, which lies between colorspace conversion and downsampling. Note + that a unified conversion/downsampling module would probably replace this + controller entirely. + +* Colorspace conversion: converts application image data into the desired + JPEG color space; also changes the data from pixel-interleaved layout to + separate component planes. Processes one pixel row at a time. + +* Downsampling: performs reduction of chroma components as required. + Optionally may perform pixel-level smoothing as well. Processes a "row + group" at a time, where a row group is defined as Vmax pixel rows of each + component before downsampling, and Vk sample rows afterwards (remember Vk + differs across components). Some downsampling or smoothing algorithms may + require context rows above and below the current row group; the + preprocessing controller is responsible for supplying these rows via proper + buffering. The downsampler is responsible for edge expansion at the right + edge (i.e., extending each sample row to a multiple of N samples); but the + preprocessing controller is responsible for vertical edge expansion (i.e., + duplicating the bottom sample row as needed to make a multiple of N rows). + +* Coefficient controller: buffer controller for the DCT-coefficient data. + This controller handles MCU assembly, including insertion of dummy DCT + blocks when needed at the right or bottom edge. When performing + Huffman-code optimization or emitting a multiscan JPEG file, this + controller is responsible for buffering the full image. The equivalent of + one fully interleaved MCU row of subsampled data is processed per call, + even when the JPEG file is noninterleaved. + +* Forward DCT and quantization: Perform DCT, quantize, and emit coefficients. + Works on one or more DCT blocks at a time. (Note: the coefficients are now + emitted in normal array order, which the entropy encoder is expected to + convert to zigzag order as necessary. Prior versions of the IJG code did + the conversion to zigzag order within the quantization step.) + +* Entropy encoding: Perform Huffman or arithmetic entropy coding and emit the + coded data to the data destination module. Works on one MCU per call. + For progressive JPEG, the same DCT blocks are fed to the entropy coder + during each pass, and the coder must emit the appropriate subset of + coefficients. + +In addition to the above objects, the compression library includes these +objects: + +* Master control: determines the number of passes required, controls overall + and per-pass initialization of the other modules. + +* Marker writing: generates JPEG markers (except for RSTn, which is emitted + by the entropy encoder when needed). + +* Data destination manager: writes the output JPEG datastream to its final + destination (e.g., a file). The destination manager supplied with the + library knows how to write to a stdio stream or to a memory buffer; + for other behaviors, the surrounding application may provide its own + destination manager. + +* Memory manager: allocates and releases memory, controls virtual arrays + (with backing store management, where required). + +* Error handler: performs formatting and output of error and trace messages; + determines handling of nonfatal errors. The surrounding application may + override some or all of this object's methods to change error handling. + +* Progress monitor: supports output of "percent-done" progress reports. + This object represents an optional callback to the surrounding application: + if wanted, it must be supplied by the application. + +The error handler, destination manager, and progress monitor objects are +defined as separate objects in order to simplify application-specific +customization of the JPEG library. A surrounding application may override +individual methods or supply its own all-new implementation of one of these +objects. The object interfaces for these objects are therefore treated as +part of the application interface of the library, whereas the other objects +are internal to the library. + +The error handler and memory manager are shared by JPEG compression and +decompression; the progress monitor, if used, may be shared as well. + + +*** Decompression object structure *** + +Here is a sketch of the logical structure of the JPEG decompression library: + + |-- Entropy decoding + |-- Coefficient controller --| + | |-- Dequantize, Inverse DCT +Main controller --| + | |-- Upsampling + |-- Postprocessing controller --| |-- Colorspace conversion + |-- Color quantization + |-- Color precision reduction + +As before, this diagram also represents typical control flow. The objects +shown are: + +* Main controller: buffer controller for the subsampled-data buffer, which + holds the output of JPEG decompression proper. This controller's primary + task is to feed the postprocessing procedure. Some upsampling algorithms + may require context rows above and below the current row group; when this + is true, the main controller is responsible for managing its buffer so as + to make context rows available. In the current design, the main buffer is + always a strip buffer; a full-image buffer is never required. + +* Coefficient controller: buffer controller for the DCT-coefficient data. + This controller handles MCU disassembly, including deletion of any dummy + DCT blocks at the right or bottom edge. When reading a multiscan JPEG + file, this controller is responsible for buffering the full image. + (Buffering DCT coefficients, rather than samples, is necessary to support + progressive JPEG.) The equivalent of one fully interleaved MCU row of + subsampled data is processed per call, even when the source JPEG file is + noninterleaved. + +* Entropy decoding: Read coded data from the data source module and perform + Huffman or arithmetic entropy decoding. Works on one MCU per call. + For progressive JPEG decoding, the coefficient controller supplies the prior + coefficients of each MCU (initially all zeroes), which the entropy decoder + modifies in each scan. + +* Dequantization and inverse DCT: like it says. Note that the coefficients + buffered by the coefficient controller have NOT been dequantized; we + merge dequantization and inverse DCT into a single step for speed reasons. + When scaled-down output is asked for, simplified DCT algorithms may be used + that need fewer coefficients and emit fewer samples per DCT block, not the + full 8x8. Works on one DCT block at a time. + +* Postprocessing controller: buffer controller for the color quantization + input buffer, when quantization is in use. (Without quantization, this + controller just calls the upsampler.) For two-pass quantization, this + controller is responsible for buffering the full-image data. + +* Upsampling: restores chroma components to full size. (May support more + general output rescaling, too. Note that if undersized DCT outputs have + been emitted by the DCT module, this module must adjust so that properly + sized outputs are created.) Works on one row group at a time. This module + also calls the color conversion module, so its top level is effectively a + buffer controller for the upsampling->color conversion buffer. However, in + all but the highest-quality operating modes, upsampling and color + conversion are likely to be merged into a single step. + +* Colorspace conversion: convert from JPEG color space to output color space, + and change data layout from separate component planes to pixel-interleaved. + Works on one pixel row at a time. + +* Color quantization: reduce the data to colormapped form, using either an + externally specified colormap or an internally generated one. This module + is not used for full-color output. Works on one pixel row at a time; may + require two passes to generate a color map. Note that the output will + always be a single component representing colormap indexes. In the current + design, the output values are JSAMPLEs, so an 8-bit compilation cannot + quantize to more than 256 colors. This is unlikely to be a problem in + practice. + +* Color reduction: this module handles color precision reduction, e.g., + generating 15-bit color (5 bits/primary) from JPEG's 24-bit output. + Not quite clear yet how this should be handled... should we merge it with + colorspace conversion??? + +Note that some high-speed operating modes might condense the entire +postprocessing sequence to a single module (upsample, color convert, and +quantize in one step). + +In addition to the above objects, the decompression library includes these +objects: + +* Master control: determines the number of passes required, controls overall + and per-pass initialization of the other modules. This is subdivided into + input and output control: jdinput.c controls only input-side processing, + while jdmaster.c handles overall initialization and output-side control. + +* Marker reading: decodes JPEG markers (except for RSTn). + +* Data source manager: supplies the input JPEG datastream. The source + manager supplied with the library knows how to read from a stdio stream + or from a memory buffer; for other behaviors, the surrounding application + may provide its own source manager. + +* Memory manager: same as for compression library. + +* Error handler: same as for compression library. + +* Progress monitor: same as for compression library. + +As with compression, the data source manager, error handler, and progress +monitor are candidates for replacement by a surrounding application. + + +*** Decompression input and output separation *** + +To support efficient incremental display of progressive JPEG files, the +decompressor is divided into two sections that can run independently: + +1. Data input includes marker parsing, entropy decoding, and input into the + coefficient controller's DCT coefficient buffer. Note that this + processing is relatively cheap and fast. + +2. Data output reads from the DCT coefficient buffer and performs the IDCT + and all postprocessing steps. + +For a progressive JPEG file, the data input processing is allowed to get +arbitrarily far ahead of the data output processing. (This occurs only +if the application calls jpeg_consume_input(); otherwise input and output +run in lockstep, since the input section is called only when the output +section needs more data.) In this way the application can avoid making +extra display passes when data is arriving faster than the display pass +can run. Furthermore, it is possible to abort an output pass without +losing anything, since the coefficient buffer is read-only as far as the +output section is concerned. See libjpeg.txt for more detail. + +A full-image coefficient array is only created if the JPEG file has multiple +scans (or if the application specifies buffered-image mode anyway). When +reading a single-scan file, the coefficient controller normally creates only +a one-MCU buffer, so input and output processing must run in lockstep in this +case. jpeg_consume_input() is effectively a no-op in this situation. + +The main impact of dividing the decompressor in this fashion is that we must +be very careful with shared variables in the cinfo data structure. Each +variable that can change during the course of decompression must be +classified as belonging to data input or data output, and each section must +look only at its own variables. For example, the data output section may not +depend on any of the variables that describe the current scan in the JPEG +file, because these may change as the data input section advances into a new +scan. + +The progress monitor is (somewhat arbitrarily) defined to treat input of the +file as one pass when buffered-image mode is not used, and to ignore data +input work completely when buffered-image mode is used. Note that the +library has no reliable way to predict the number of passes when dealing +with a progressive JPEG file, nor can it predict the number of output passes +in buffered-image mode. So the work estimate is inherently bogus anyway. + +No comparable division is currently made in the compression library, because +there isn't any real need for it. + + +*** Data formats *** + +Arrays of pixel sample values use the following data structure: + + typedef something JSAMPLE; a pixel component value, 0..MAXJSAMPLE + typedef JSAMPLE *JSAMPROW; ptr to a row of samples + typedef JSAMPROW *JSAMPARRAY; ptr to a list of rows + typedef JSAMPARRAY *JSAMPIMAGE; ptr to a list of color-component arrays + +The basic element type JSAMPLE will typically be one of unsigned char, +(signed) char, or short. Short will be used if samples wider than 8 bits are +to be supported (this is a compile-time option). Otherwise, unsigned char is +used if possible. If the compiler only supports signed chars, then it is +necessary to mask off the value when reading. Thus, all reads of JSAMPLE +values must be coded as "GETJSAMPLE(value)", where the macro will be defined +as "((value) & 0xFF)" on signed-char machines and "((int) (value))" elsewhere. + +With these conventions, JSAMPLE values can be assumed to be >= 0. This helps +simplify correct rounding during downsampling, etc. The JPEG standard's +specification that sample values run from -128..127 is accommodated by +subtracting 128 from the sample value in the DCT step. Similarly, during +decompression the output of the IDCT step will be immediately shifted back to +0..255. (NB: different values are required when 12-bit samples are in use. +The code is written in terms of MAXJSAMPLE and CENTERJSAMPLE, which will be +defined as 255 and 128 respectively in an 8-bit implementation, and as 4095 +and 2048 in a 12-bit implementation.) + +We use a pointer per row, rather than a two-dimensional JSAMPLE array. This +choice costs only a small amount of memory and has several benefits: +* Code using the data structure doesn't need to know the allocated width of + the rows. This simplifies edge expansion/compression, since we can work + in an array that's wider than the logical picture width. +* Indexing doesn't require multiplication; this is a performance win on many + machines. +* Arrays with more than 64K total elements can be supported even on machines + where malloc() cannot allocate chunks larger than 64K. +* The rows forming a component array may be allocated at different times + without extra copying. This trick allows some speedups in smoothing steps + that need access to the previous and next rows. + +Note that each color component is stored in a separate array; we don't use the +traditional layout in which the components of a pixel are stored together. +This simplifies coding of modules that work on each component independently, +because they don't need to know how many components there are. Furthermore, +we can read or write each component to a temporary file independently, which +is helpful when dealing with noninterleaved JPEG files. + +In general, a specific sample value is accessed by code such as + GETJSAMPLE(image[colorcomponent][row][col]) +where col is measured from the image left edge, but row is measured from the +first sample row currently in memory. Either of the first two indexings can +be precomputed by copying the relevant pointer. + + +Since most image-processing applications prefer to work on images in which +the components of a pixel are stored together, the data passed to or from the +surrounding application uses the traditional convention: a single pixel is +represented by N consecutive JSAMPLE values, and an image row is an array of +(# of color components)*(image width) JSAMPLEs. One or more rows of data can +be represented by a pointer of type JSAMPARRAY in this scheme. This scheme is +converted to component-wise storage inside the JPEG library. (Applications +that want to skip JPEG preprocessing or postprocessing will have to contend +with component-wise storage.) + + +Arrays of DCT-coefficient values use the following data structure: + + typedef short JCOEF; a 16-bit signed integer + typedef JCOEF JBLOCK[DCTSIZE2]; an 8x8 block of coefficients + typedef JBLOCK *JBLOCKROW; ptr to one horizontal row of 8x8 blocks + typedef JBLOCKROW *JBLOCKARRAY; ptr to a list of such rows + typedef JBLOCKARRAY *JBLOCKIMAGE; ptr to a list of color component arrays + +The underlying type is at least a 16-bit signed integer; while "short" is big +enough on all machines of interest, on some machines it is preferable to use +"int" for speed reasons, despite the storage cost. Coefficients are grouped +into 8x8 blocks (but we always use #defines DCTSIZE and DCTSIZE2 rather than +"8" and "64"). + +The contents of a coefficient block may be in either "natural" or zigzagged +order, and may be true values or divided by the quantization coefficients, +depending on where the block is in the processing pipeline. In the current +library, coefficient blocks are kept in natural order everywhere; the entropy +codecs zigzag or dezigzag the data as it is written or read. The blocks +contain quantized coefficients everywhere outside the DCT/IDCT subsystems. +(This latter decision may need to be revisited to support variable +quantization a la JPEG Part 3.) + +Notice that the allocation unit is now a row of 8x8 coefficient blocks, +corresponding to N rows of samples. Otherwise the structure is much the same +as for samples, and for the same reasons. + +On machines where malloc() can't handle a request bigger than 64Kb, this data +structure limits us to rows of less than 512 JBLOCKs, or a picture width of +4000+ pixels. This seems an acceptable restriction. + + +On 80x86 machines, the bottom-level pointer types (JSAMPROW and JBLOCKROW) +must be declared as "far" pointers, but the upper levels can be "near" +(implying that the pointer lists are allocated in the DS segment). +We use a #define symbol FAR, which expands to the "far" keyword when +compiling on 80x86 machines and to nothing elsewhere. + + +*** Suspendable processing *** + +In some applications it is desirable to use the JPEG library as an +incremental, memory-to-memory filter. In this situation the data source or +destination may be a limited-size buffer, and we can't rely on being able to +empty or refill the buffer at arbitrary times. Instead the application would +like to have control return from the library at buffer overflow/underrun, and +then resume compression or decompression at a later time. + +This scenario is supported for simple cases. (For anything more complex, we +recommend that the application "bite the bullet" and develop real multitasking +capability.) The libjpeg.txt file goes into more detail about the usage and +limitations of this capability; here we address the implications for library +structure. + +The essence of the problem is that the entropy codec (coder or decoder) must +be prepared to stop at arbitrary times. In turn, the controllers that call +the entropy codec must be able to stop before having produced or consumed all +the data that they normally would handle in one call. That part is reasonably +straightforward: we make the controller call interfaces include "progress +counters" which indicate the number of data chunks successfully processed, and +we require callers to test the counter rather than just assume all of the data +was processed. + +Rather than trying to restart at an arbitrary point, the current Huffman +codecs are designed to restart at the beginning of the current MCU after a +suspension due to buffer overflow/underrun. At the start of each call, the +codec's internal state is loaded from permanent storage (in the JPEG object +structures) into local variables. On successful completion of the MCU, the +permanent state is updated. (This copying is not very expensive, and may even +lead to *improved* performance if the local variables can be registerized.) +If a suspension occurs, the codec simply returns without updating the state, +thus effectively reverting to the start of the MCU. Note that this implies +leaving some data unprocessed in the source/destination buffer (ie, the +compressed partial MCU). The data source/destination module interfaces are +specified so as to make this possible. This also implies that the data buffer +must be large enough to hold a worst-case compressed MCU; a couple thousand +bytes should be enough. + +In a successive-approximation AC refinement scan, the progressive Huffman +decoder has to be able to undo assignments of newly nonzero coefficients if it +suspends before the MCU is complete, since decoding requires distinguishing +previously-zero and previously-nonzero coefficients. This is a bit tedious +but probably won't have much effect on performance. Other variants of Huffman +decoding need not worry about this, since they will just store the same values +again if forced to repeat the MCU. + +This approach would probably not work for an arithmetic codec, since its +modifiable state is quite large and couldn't be copied cheaply. Instead it +would have to suspend and resume exactly at the point of the buffer end. + +The JPEG marker reader is designed to cope with suspension at an arbitrary +point. It does so by backing up to the start of the marker parameter segment, +so the data buffer must be big enough to hold the largest marker of interest. +Again, a couple KB should be adequate. (A special "skip" convention is used +to bypass COM and APPn markers, so these can be larger than the buffer size +without causing problems; otherwise a 64K buffer would be needed in the worst +case.) + +The JPEG marker writer currently does *not* cope with suspension. +We feel that this is not necessary; it is much easier simply to require +the application to ensure there is enough buffer space before starting. (An +empty 2K buffer is more than sufficient for the header markers; and ensuring +there are a dozen or two bytes available before calling jpeg_finish_compress() +will suffice for the trailer.) This would not work for writing multi-scan +JPEG files, but we simply do not intend to support that capability with +suspension. + + +*** Memory manager services *** + +The JPEG library's memory manager controls allocation and deallocation of +memory, and it manages large "virtual" data arrays on machines where the +operating system does not provide virtual memory. Note that the same +memory manager serves both compression and decompression operations. + +In all cases, allocated objects are tied to a particular compression or +decompression master record, and they will be released when that master +record is destroyed. + +The memory manager does not provide explicit deallocation of objects. +Instead, objects are created in "pools" of free storage, and a whole pool +can be freed at once. This approach helps prevent storage-leak bugs, and +it speeds up operations whenever malloc/free are slow (as they often are). +The pools can be regarded as lifetime identifiers for objects. Two +pools/lifetimes are defined: + * JPOOL_PERMANENT lasts until master record is destroyed + * JPOOL_IMAGE lasts until done with image (JPEG datastream) +Permanent lifetime is used for parameters and tables that should be carried +across from one datastream to another; this includes all application-visible +parameters. Image lifetime is used for everything else. (A third lifetime, +JPOOL_PASS = one processing pass, was originally planned. However it was +dropped as not being worthwhile. The actual usage patterns are such that the +peak memory usage would be about the same anyway; and having per-pass storage +substantially complicates the virtual memory allocation rules --- see below.) + +The memory manager deals with three kinds of object: +1. "Small" objects. Typically these require no more than 10K-20K total. +2. "Large" objects. These may require tens to hundreds of K depending on + image size. Semantically they behave the same as small objects, but we + distinguish them for two reasons: + * On MS-DOS machines, large objects are referenced by FAR pointers, + small objects by NEAR pointers. + * Pool allocation heuristics may differ for large and small objects. + Note that individual "large" objects cannot exceed the size allowed by + type size_t, which may be 64K or less on some machines. +3. "Virtual" objects. These are large 2-D arrays of JSAMPLEs or JBLOCKs + (typically large enough for the entire image being processed). The + memory manager provides stripwise access to these arrays. On machines + without virtual memory, the rest of the array may be swapped out to a + temporary file. + +(Note: JSAMPARRAY and JBLOCKARRAY data structures are a combination of large +objects for the data proper and small objects for the row pointers. For +convenience and speed, the memory manager provides single routines to create +these structures. Similarly, virtual arrays include a small control block +and a JSAMPARRAY or JBLOCKARRAY working buffer, all created with one call.) + +In the present implementation, virtual arrays are only permitted to have image +lifespan. (Permanent lifespan would not be reasonable, and pass lifespan is +not very useful since a virtual array's raison d'etre is to store data for +multiple passes through the image.) We also expect that only "small" objects +will be given permanent lifespan, though this restriction is not required by +the memory manager. + +In a non-virtual-memory machine, some performance benefit can be gained by +making the in-memory buffers for virtual arrays be as large as possible. +(For small images, the buffers might fit entirely in memory, so blind +swapping would be very wasteful.) The memory manager will adjust the height +of the buffers to fit within a prespecified maximum memory usage. In order +to do this in a reasonably optimal fashion, the manager needs to allocate all +of the virtual arrays at once. Therefore, there isn't a one-step allocation +routine for virtual arrays; instead, there is a "request" routine that simply +allocates the control block, and a "realize" routine (called just once) that +determines space allocation and creates all of the actual buffers. The +realize routine must allow for space occupied by non-virtual large objects. +(We don't bother to factor in the space needed for small objects, on the +grounds that it isn't worth the trouble.) + +To support all this, we establish the following protocol for doing business +with the memory manager: + 1. Modules must request virtual arrays (which may have only image lifespan) + during the initial setup phase, i.e., in their jinit_xxx routines. + 2. All "large" objects (including JSAMPARRAYs and JBLOCKARRAYs) must also be + allocated during initial setup. + 3. realize_virt_arrays will be called at the completion of initial setup. + The above conventions ensure that sufficient information is available + for it to choose a good size for virtual array buffers. +Small objects of any lifespan may be allocated at any time. We expect that +the total space used for small objects will be small enough to be negligible +in the realize_virt_arrays computation. + +In a virtual-memory machine, we simply pretend that the available space is +infinite, thus causing realize_virt_arrays to decide that it can allocate all +the virtual arrays as full-size in-memory buffers. The overhead of the +virtual-array access protocol is very small when no swapping occurs. + +A virtual array can be specified to be "pre-zeroed"; when this flag is set, +never-yet-written sections of the array are set to zero before being made +available to the caller. If this flag is not set, never-written sections +of the array contain garbage. (This feature exists primarily because the +equivalent logic would otherwise be needed in jdcoefct.c for progressive +JPEG mode; we may as well make it available for possible other uses.) + +The first write pass on a virtual array is required to occur in top-to-bottom +order; read passes, as well as any write passes after the first one, may +access the array in any order. This restriction exists partly to simplify +the virtual array control logic, and partly because some file systems may not +support seeking beyond the current end-of-file in a temporary file. The main +implication of this restriction is that rearrangement of rows (such as +converting top-to-bottom data order to bottom-to-top) must be handled while +reading data out of the virtual array, not while putting it in. + + +*** Memory manager internal structure *** + +To isolate system dependencies as much as possible, we have broken the +memory manager into two parts. There is a reasonably system-independent +"front end" (jmemmgr.c) and a "back end" that contains only the code +likely to change across systems. All of the memory management methods +outlined above are implemented by the front end. The back end provides +the following routines for use by the front end (none of these routines +are known to the rest of the JPEG code): + +jpeg_mem_init, jpeg_mem_term system-dependent initialization/shutdown + +jpeg_get_small, jpeg_free_small interface to malloc and free library routines + (or their equivalents) + +jpeg_get_large, jpeg_free_large interface to FAR malloc/free in MSDOS machines; + else usually the same as + jpeg_get_small/jpeg_free_small + +jpeg_mem_available estimate available memory + +jpeg_open_backing_store create a backing-store object + +read_backing_store, manipulate a backing-store object +write_backing_store, +close_backing_store + +On some systems there will be more than one type of backing-store object +(specifically, in MS-DOS a backing store file might be an area of extended +memory as well as a disk file). jpeg_open_backing_store is responsible for +choosing how to implement a given object. The read/write/close routines +are method pointers in the structure that describes a given object; this +lets them be different for different object types. + +It may be necessary to ensure that backing store objects are explicitly +released upon abnormal program termination. For example, MS-DOS won't free +extended memory by itself. To support this, we will expect the main program +or surrounding application to arrange to call self_destruct (typically via +jpeg_destroy) upon abnormal termination. This may require a SIGINT signal +handler or equivalent. We don't want to have the back end module install its +own signal handler, because that would pre-empt the surrounding application's +ability to control signal handling. + +The IJG distribution includes several memory manager back end implementations. +Usually the same back end should be suitable for all applications on a given +system, but it is possible for an application to supply its own back end at +need. + + +*** Implications of DNL marker *** + +Some JPEG files may use a DNL marker to postpone definition of the image +height (this would be useful for a fax-like scanner's output, for instance). +In these files the SOF marker claims the image height is 0, and you only +find out the true image height at the end of the first scan. + +We could read these files as follows: +1. Upon seeing zero image height, replace it by 65535 (the maximum allowed). +2. When the DNL is found, update the image height in the global image + descriptor. +This implies that control modules must avoid making copies of the image +height, and must re-test for termination after each MCU row. This would +be easy enough to do. + +In cases where image-size data structures are allocated, this approach will +result in very inefficient use of virtual memory or much-larger-than-necessary +temporary files. This seems acceptable for something that probably won't be a +mainstream usage. People might have to forgo use of memory-hogging options +(such as two-pass color quantization or noninterleaved JPEG files) if they +want efficient conversion of such files. (One could improve efficiency by +demanding a user-supplied upper bound for the height, less than 65536; in most +cases it could be much less.) + +The standard also permits the SOF marker to overestimate the image height, +with a DNL to give the true, smaller height at the end of the first scan. +This would solve the space problems if the overestimate wasn't too great. +However, it implies that you don't even know whether DNL will be used. + +This leads to a couple of very serious objections: +1. Testing for a DNL marker must occur in the inner loop of the decompressor's + Huffman decoder; this implies a speed penalty whether the feature is used + or not. +2. There is no way to hide the last-minute change in image height from an + application using the decoder. Thus *every* application using the IJG + library would suffer a complexity penalty whether it cared about DNL or + not. +We currently do not support DNL because of these problems. + +A different approach is to insist that DNL-using files be preprocessed by a +separate program that reads ahead to the DNL, then goes back and fixes the SOF +marker. This is a much simpler solution and is probably far more efficient. +Even if one wants piped input, buffering the first scan of the JPEG file needs +a lot smaller temp file than is implied by the maximum-height method. For +this approach we'd simply treat DNL as a no-op in the decompressor (at most, +check that it matches the SOF image height). + +We will not worry about making the compressor capable of outputting DNL. +Something similar to the first scheme above could be applied if anyone ever +wants to make that work. diff --git a/jpeg/testimg.bmp b/jpeg/testimg.bmp new file mode 100644 index 0000000..012223e Binary files /dev/null and b/jpeg/testimg.bmp differ diff --git a/jpeg/testimg.jpg b/jpeg/testimg.jpg new file mode 100644 index 0000000..a026e48 Binary files /dev/null and b/jpeg/testimg.jpg differ diff --git a/jpeg/testimg.ppm b/jpeg/testimg.ppm new file mode 100644 index 0000000..bd78ef8 --- /dev/null +++ b/jpeg/testimg.ppm @@ -0,0 +1,4 @@ +P6 +227 149 +255 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/* to declare isdigit() */ + + +#if TRANSFORMS_SUPPORTED + +/* + * Lossless image transformation routines. These routines work on DCT + * coefficient arrays and thus do not require any lossy decompression + * or recompression of the image. + * Thanks to Guido Vollbeding for the initial design and code of this feature, + * and to Ben Jackson for introducing the cropping feature. + * + * Horizontal flipping is done in-place, using a single top-to-bottom + * pass through the virtual source array. It will thus be much the + * fastest option for images larger than main memory. + * + * The other routines require a set of destination virtual arrays, so they + * need twice as much memory as jpegtran normally does. The destination + * arrays are always written in normal scan order (top to bottom) because + * the virtual array manager expects this. The source arrays will be scanned + * in the corresponding order, which means multiple passes through the source + * arrays for most of the transforms. That could result in much thrashing + * if the image is larger than main memory. + * + * If cropping or trimming is involved, the destination arrays may be smaller + * than the source arrays. Note it is not possible to do horizontal flip + * in-place when a nonzero Y crop offset is specified, since we'd have to move + * data from one block row to another but the virtual array manager doesn't + * guarantee we can touch more than one row at a time. So in that case, + * we have to use a separate destination array. + * + * Some notes about the operating environment of the individual transform + * routines: + * 1. Both the source and destination virtual arrays are allocated from the + * source JPEG object, and therefore should be manipulated by calling the + * source's memory manager. + * 2. The destination's component count should be used. It may be smaller + * than the source's when forcing to grayscale. + * 3. Likewise the destination's sampling factors should be used. When + * forcing to grayscale the destination's sampling factors will be all 1, + * and we may as well take that as the effective iMCU size. + * 4. When "trim" is in effect, the destination's dimensions will be the + * trimmed values but the source's will be untrimmed. + * 5. When "crop" is in effect, the destination's dimensions will be the + * cropped values but the source's will be uncropped. Each transform + * routine is responsible for picking up source data starting at the + * correct X and Y offset for the crop region. (The X and Y offsets + * passed to the transform routines are measured in iMCU blocks of the + * destination.) + * 6. All the routines assume that the source and destination buffers are + * padded out to a full iMCU boundary. This is true, although for the + * source buffer it is an undocumented property of jdcoefct.c. + */ + + +LOCAL(void) +do_crop (j_decompress_ptr srcinfo, j_compress_ptr dstinfo, + JDIMENSION x_crop_offset, JDIMENSION y_crop_offset, + jvirt_barray_ptr *src_coef_arrays, + jvirt_barray_ptr *dst_coef_arrays) +/* Crop. This is only used when no rotate/flip is requested with the crop. */ +{ + JDIMENSION dst_blk_y, x_crop_blocks, y_crop_blocks; + int ci, offset_y; + JBLOCKARRAY src_buffer, dst_buffer; + jpeg_component_info *compptr; + + /* We simply have to copy the right amount of data (the destination's + * image size) starting at the given X and Y offsets in the source. + */ + for (ci = 0; ci < dstinfo->num_components; ci++) { + compptr = dstinfo->comp_info + ci; + x_crop_blocks = x_crop_offset * compptr->h_samp_factor; + y_crop_blocks = y_crop_offset * compptr->v_samp_factor; + for (dst_blk_y = 0; dst_blk_y < compptr->height_in_blocks; + dst_blk_y += compptr->v_samp_factor) { + dst_buffer = (*srcinfo->mem->access_virt_barray) + ((j_common_ptr) srcinfo, dst_coef_arrays[ci], dst_blk_y, + (JDIMENSION) compptr->v_samp_factor, TRUE); + src_buffer = (*srcinfo->mem->access_virt_barray) + ((j_common_ptr) srcinfo, src_coef_arrays[ci], + dst_blk_y + y_crop_blocks, + (JDIMENSION) compptr->v_samp_factor, FALSE); + for (offset_y = 0; offset_y < compptr->v_samp_factor; offset_y++) { + jcopy_block_row(src_buffer[offset_y] + x_crop_blocks, + dst_buffer[offset_y], + compptr->width_in_blocks); + } + } + } +} + + +LOCAL(void) +do_flip_h_no_crop (j_decompress_ptr srcinfo, j_compress_ptr dstinfo, + JDIMENSION x_crop_offset, + jvirt_barray_ptr *src_coef_arrays) +/* Horizontal flip; done in-place, so no separate dest array is required. + * NB: this only works when y_crop_offset is zero. + */ +{ + JDIMENSION MCU_cols, comp_width, blk_x, blk_y, x_crop_blocks; + int ci, k, offset_y; + JBLOCKARRAY buffer; + JCOEFPTR ptr1, ptr2; + JCOEF temp1, temp2; + jpeg_component_info *compptr; + + /* Horizontal mirroring of DCT blocks is accomplished by swapping + * pairs of blocks in-place. Within a DCT block, we perform horizontal + * mirroring by changing the signs of odd-numbered columns. + * Partial iMCUs at the right edge are left untouched. + */ + MCU_cols = srcinfo->output_width / + (dstinfo->max_h_samp_factor * dstinfo->min_DCT_h_scaled_size); + + for (ci = 0; ci < dstinfo->num_components; ci++) { + compptr = dstinfo->comp_info + ci; + comp_width = MCU_cols * compptr->h_samp_factor; + x_crop_blocks = x_crop_offset * compptr->h_samp_factor; + for (blk_y = 0; blk_y < compptr->height_in_blocks; + blk_y += compptr->v_samp_factor) { + buffer = (*srcinfo->mem->access_virt_barray) + ((j_common_ptr) srcinfo, src_coef_arrays[ci], blk_y, + (JDIMENSION) compptr->v_samp_factor, TRUE); + for (offset_y = 0; offset_y < compptr->v_samp_factor; offset_y++) { + /* Do the mirroring */ + for (blk_x = 0; blk_x * 2 < comp_width; blk_x++) { + ptr1 = buffer[offset_y][blk_x]; + ptr2 = buffer[offset_y][comp_width - blk_x - 1]; + /* this unrolled loop doesn't need to know which row it's on... */ + for (k = 0; k < DCTSIZE2; k += 2) { + temp1 = *ptr1; /* swap even column */ + temp2 = *ptr2; + *ptr1++ = temp2; + *ptr2++ = temp1; + temp1 = *ptr1; /* swap odd column with sign change */ + temp2 = *ptr2; + *ptr1++ = -temp2; + *ptr2++ = -temp1; + } + } + if (x_crop_blocks > 0) { + /* Now left-justify the portion of the data to be kept. + * We can't use a single jcopy_block_row() call because that routine + * depends on memcpy(), whose behavior is unspecified for overlapping + * source and destination areas. Sigh. + */ + for (blk_x = 0; blk_x < compptr->width_in_blocks; blk_x++) { + jcopy_block_row(buffer[offset_y] + blk_x + x_crop_blocks, + buffer[offset_y] + blk_x, + (JDIMENSION) 1); + } + } + } + } + } +} + + +LOCAL(void) +do_flip_h (j_decompress_ptr srcinfo, j_compress_ptr dstinfo, + JDIMENSION x_crop_offset, JDIMENSION y_crop_offset, + jvirt_barray_ptr *src_coef_arrays, + jvirt_barray_ptr *dst_coef_arrays) +/* Horizontal flip in general cropping case */ +{ + JDIMENSION MCU_cols, comp_width, dst_blk_x, dst_blk_y; + JDIMENSION x_crop_blocks, y_crop_blocks; + int ci, k, offset_y; + JBLOCKARRAY src_buffer, dst_buffer; + JBLOCKROW src_row_ptr, dst_row_ptr; + JCOEFPTR src_ptr, dst_ptr; + jpeg_component_info *compptr; + + /* Here we must output into a separate array because we can't touch + * different rows of a single virtual array simultaneously. Otherwise, + * this is essentially the same as the routine above. + */ + MCU_cols = srcinfo->output_width / + (dstinfo->max_h_samp_factor * dstinfo->min_DCT_h_scaled_size); + + for (ci = 0; ci < dstinfo->num_components; ci++) { + compptr = dstinfo->comp_info + ci; + comp_width = MCU_cols * compptr->h_samp_factor; + x_crop_blocks = x_crop_offset * compptr->h_samp_factor; + y_crop_blocks = y_crop_offset * compptr->v_samp_factor; + for (dst_blk_y = 0; dst_blk_y < compptr->height_in_blocks; + dst_blk_y += compptr->v_samp_factor) { + dst_buffer = (*srcinfo->mem->access_virt_barray) + ((j_common_ptr) srcinfo, dst_coef_arrays[ci], dst_blk_y, + (JDIMENSION) compptr->v_samp_factor, TRUE); + src_buffer = (*srcinfo->mem->access_virt_barray) + ((j_common_ptr) srcinfo, src_coef_arrays[ci], + dst_blk_y + y_crop_blocks, + (JDIMENSION) compptr->v_samp_factor, FALSE); + for (offset_y = 0; offset_y < compptr->v_samp_factor; offset_y++) { + dst_row_ptr = dst_buffer[offset_y]; + src_row_ptr = src_buffer[offset_y]; + for (dst_blk_x = 0; dst_blk_x < compptr->width_in_blocks; dst_blk_x++) { + if (x_crop_blocks + dst_blk_x < comp_width) { + /* Do the mirrorable blocks */ + dst_ptr = dst_row_ptr[dst_blk_x]; + src_ptr = src_row_ptr[comp_width - x_crop_blocks - dst_blk_x - 1]; + /* this unrolled loop doesn't need to know which row it's on... */ + for (k = 0; k < DCTSIZE2; k += 2) { + *dst_ptr++ = *src_ptr++; /* copy even column */ + *dst_ptr++ = - *src_ptr++; /* copy odd column with sign change */ + } + } else { + /* Copy last partial block(s) verbatim */ + jcopy_block_row(src_row_ptr + dst_blk_x + x_crop_blocks, + dst_row_ptr + dst_blk_x, + (JDIMENSION) 1); + } + } + } + } + } +} + + +LOCAL(void) +do_flip_v (j_decompress_ptr srcinfo, j_compress_ptr dstinfo, + JDIMENSION x_crop_offset, JDIMENSION y_crop_offset, + jvirt_barray_ptr *src_coef_arrays, + jvirt_barray_ptr *dst_coef_arrays) +/* Vertical flip */ +{ + JDIMENSION MCU_rows, comp_height, dst_blk_x, dst_blk_y; + JDIMENSION x_crop_blocks, y_crop_blocks; + int ci, i, j, offset_y; + JBLOCKARRAY src_buffer, dst_buffer; + JBLOCKROW src_row_ptr, dst_row_ptr; + JCOEFPTR src_ptr, dst_ptr; + jpeg_component_info *compptr; + + /* We output into a separate array because we can't touch different + * rows of the source virtual array simultaneously. Otherwise, this + * is a pretty straightforward analog of horizontal flip. + * Within a DCT block, vertical mirroring is done by changing the signs + * of odd-numbered rows. + * Partial iMCUs at the bottom edge are copied verbatim. + */ + MCU_rows = srcinfo->output_height / + (dstinfo->max_v_samp_factor * dstinfo->min_DCT_v_scaled_size); + + for (ci = 0; ci < dstinfo->num_components; ci++) { + compptr = dstinfo->comp_info + ci; + comp_height = MCU_rows * compptr->v_samp_factor; + x_crop_blocks = x_crop_offset * compptr->h_samp_factor; + y_crop_blocks = y_crop_offset * compptr->v_samp_factor; + for (dst_blk_y = 0; dst_blk_y < compptr->height_in_blocks; + dst_blk_y += compptr->v_samp_factor) { + dst_buffer = (*srcinfo->mem->access_virt_barray) + ((j_common_ptr) srcinfo, dst_coef_arrays[ci], dst_blk_y, + (JDIMENSION) compptr->v_samp_factor, TRUE); + if (y_crop_blocks + dst_blk_y < comp_height) { + /* Row is within the mirrorable area. */ + src_buffer = (*srcinfo->mem->access_virt_barray) + ((j_common_ptr) srcinfo, src_coef_arrays[ci], + comp_height - y_crop_blocks - dst_blk_y - + (JDIMENSION) compptr->v_samp_factor, + (JDIMENSION) compptr->v_samp_factor, FALSE); + } else { + /* Bottom-edge blocks will be copied verbatim. */ + src_buffer = (*srcinfo->mem->access_virt_barray) + ((j_common_ptr) srcinfo, src_coef_arrays[ci], + dst_blk_y + y_crop_blocks, + (JDIMENSION) compptr->v_samp_factor, FALSE); + } + for (offset_y = 0; offset_y < compptr->v_samp_factor; offset_y++) { + if (y_crop_blocks + dst_blk_y < comp_height) { + /* Row is within the mirrorable area. */ + dst_row_ptr = dst_buffer[offset_y]; + src_row_ptr = src_buffer[compptr->v_samp_factor - offset_y - 1]; + src_row_ptr += x_crop_blocks; + for (dst_blk_x = 0; dst_blk_x < compptr->width_in_blocks; + dst_blk_x++) { + dst_ptr = dst_row_ptr[dst_blk_x]; + src_ptr = src_row_ptr[dst_blk_x]; + for (i = 0; i < DCTSIZE; i += 2) { + /* copy even row */ + for (j = 0; j < DCTSIZE; j++) + *dst_ptr++ = *src_ptr++; + /* copy odd row with sign change */ + for (j = 0; j < DCTSIZE; j++) + *dst_ptr++ = - *src_ptr++; + } + } + } else { + /* Just copy row verbatim. */ + jcopy_block_row(src_buffer[offset_y] + x_crop_blocks, + dst_buffer[offset_y], + compptr->width_in_blocks); + } + } + } + } +} + + +LOCAL(void) +do_transpose (j_decompress_ptr srcinfo, j_compress_ptr dstinfo, + JDIMENSION x_crop_offset, JDIMENSION y_crop_offset, + jvirt_barray_ptr *src_coef_arrays, + jvirt_barray_ptr *dst_coef_arrays) +/* Transpose source into destination */ +{ + JDIMENSION dst_blk_x, dst_blk_y, x_crop_blocks, y_crop_blocks; + int ci, i, j, offset_x, offset_y; + JBLOCKARRAY src_buffer, dst_buffer; + JCOEFPTR src_ptr, dst_ptr; + jpeg_component_info *compptr; + + /* Transposing pixels within a block just requires transposing the + * DCT coefficients. + * Partial iMCUs at the edges require no special treatment; we simply + * process all the available DCT blocks for every component. + */ + for (ci = 0; ci < dstinfo->num_components; ci++) { + compptr = dstinfo->comp_info + ci; + x_crop_blocks = x_crop_offset * compptr->h_samp_factor; + y_crop_blocks = y_crop_offset * compptr->v_samp_factor; + for (dst_blk_y = 0; dst_blk_y < compptr->height_in_blocks; + dst_blk_y += compptr->v_samp_factor) { + dst_buffer = (*srcinfo->mem->access_virt_barray) + ((j_common_ptr) srcinfo, dst_coef_arrays[ci], dst_blk_y, + (JDIMENSION) compptr->v_samp_factor, TRUE); + for (offset_y = 0; offset_y < compptr->v_samp_factor; offset_y++) { + for (dst_blk_x = 0; dst_blk_x < compptr->width_in_blocks; + dst_blk_x += compptr->h_samp_factor) { + src_buffer = (*srcinfo->mem->access_virt_barray) + ((j_common_ptr) srcinfo, src_coef_arrays[ci], + dst_blk_x + x_crop_blocks, + (JDIMENSION) compptr->h_samp_factor, FALSE); + for (offset_x = 0; offset_x < compptr->h_samp_factor; offset_x++) { + dst_ptr = dst_buffer[offset_y][dst_blk_x + offset_x]; + src_ptr = src_buffer[offset_x][dst_blk_y + offset_y + y_crop_blocks]; + for (i = 0; i < DCTSIZE; i++) + for (j = 0; j < DCTSIZE; j++) + dst_ptr[j*DCTSIZE+i] = src_ptr[i*DCTSIZE+j]; + } + } + } + } + } +} + + +LOCAL(void) +do_rot_90 (j_decompress_ptr srcinfo, j_compress_ptr dstinfo, + JDIMENSION x_crop_offset, JDIMENSION y_crop_offset, + jvirt_barray_ptr *src_coef_arrays, + jvirt_barray_ptr *dst_coef_arrays) +/* 90 degree rotation is equivalent to + * 1. Transposing the image; + * 2. Horizontal mirroring. + * These two steps are merged into a single processing routine. + */ +{ + JDIMENSION MCU_cols, comp_width, dst_blk_x, dst_blk_y; + JDIMENSION x_crop_blocks, y_crop_blocks; + int ci, i, j, offset_x, offset_y; + JBLOCKARRAY src_buffer, dst_buffer; + JCOEFPTR src_ptr, dst_ptr; + jpeg_component_info *compptr; + + /* Because of the horizontal mirror step, we can't process partial iMCUs + * at the (output) right edge properly. They just get transposed and + * not mirrored. + */ + MCU_cols = srcinfo->output_height / + (dstinfo->max_h_samp_factor * dstinfo->min_DCT_h_scaled_size); + + for (ci = 0; ci < dstinfo->num_components; ci++) { + compptr = dstinfo->comp_info + ci; + comp_width = MCU_cols * compptr->h_samp_factor; + x_crop_blocks = x_crop_offset * compptr->h_samp_factor; + y_crop_blocks = y_crop_offset * compptr->v_samp_factor; + for (dst_blk_y = 0; dst_blk_y < compptr->height_in_blocks; + dst_blk_y += compptr->v_samp_factor) { + dst_buffer = (*srcinfo->mem->access_virt_barray) + ((j_common_ptr) srcinfo, dst_coef_arrays[ci], dst_blk_y, + (JDIMENSION) compptr->v_samp_factor, TRUE); + for (offset_y = 0; offset_y < compptr->v_samp_factor; offset_y++) { + for (dst_blk_x = 0; dst_blk_x < compptr->width_in_blocks; + dst_blk_x += compptr->h_samp_factor) { + if (x_crop_blocks + dst_blk_x < comp_width) { + /* Block is within the mirrorable area. */ + src_buffer = (*srcinfo->mem->access_virt_barray) + ((j_common_ptr) srcinfo, src_coef_arrays[ci], + comp_width - x_crop_blocks - dst_blk_x - + (JDIMENSION) compptr->h_samp_factor, + (JDIMENSION) compptr->h_samp_factor, FALSE); + } else { + /* Edge blocks are transposed but not mirrored. */ + src_buffer = (*srcinfo->mem->access_virt_barray) + ((j_common_ptr) srcinfo, src_coef_arrays[ci], + dst_blk_x + x_crop_blocks, + (JDIMENSION) compptr->h_samp_factor, FALSE); + } + for (offset_x = 0; offset_x < compptr->h_samp_factor; offset_x++) { + dst_ptr = dst_buffer[offset_y][dst_blk_x + offset_x]; + if (x_crop_blocks + dst_blk_x < comp_width) { + /* Block is within the mirrorable area. */ + src_ptr = src_buffer[compptr->h_samp_factor - offset_x - 1] + [dst_blk_y + offset_y + y_crop_blocks]; + for (i = 0; i < DCTSIZE; i++) { + for (j = 0; j < DCTSIZE; j++) + dst_ptr[j*DCTSIZE+i] = src_ptr[i*DCTSIZE+j]; + i++; + for (j = 0; j < DCTSIZE; j++) + dst_ptr[j*DCTSIZE+i] = -src_ptr[i*DCTSIZE+j]; + } + } else { + /* Edge blocks are transposed but not mirrored. */ + src_ptr = src_buffer[offset_x] + [dst_blk_y + offset_y + y_crop_blocks]; + for (i = 0; i < DCTSIZE; i++) + for (j = 0; j < DCTSIZE; j++) + dst_ptr[j*DCTSIZE+i] = src_ptr[i*DCTSIZE+j]; + } + } + } + } + } + } +} + + +LOCAL(void) +do_rot_270 (j_decompress_ptr srcinfo, j_compress_ptr dstinfo, + JDIMENSION x_crop_offset, JDIMENSION y_crop_offset, + jvirt_barray_ptr *src_coef_arrays, + jvirt_barray_ptr *dst_coef_arrays) +/* 270 degree rotation is equivalent to + * 1. Horizontal mirroring; + * 2. Transposing the image. + * These two steps are merged into a single processing routine. + */ +{ + JDIMENSION MCU_rows, comp_height, dst_blk_x, dst_blk_y; + JDIMENSION x_crop_blocks, y_crop_blocks; + int ci, i, j, offset_x, offset_y; + JBLOCKARRAY src_buffer, dst_buffer; + JCOEFPTR src_ptr, dst_ptr; + jpeg_component_info *compptr; + + /* Because of the horizontal mirror step, we can't process partial iMCUs + * at the (output) bottom edge properly. They just get transposed and + * not mirrored. + */ + MCU_rows = srcinfo->output_width / + (dstinfo->max_v_samp_factor * dstinfo->min_DCT_v_scaled_size); + + for (ci = 0; ci < dstinfo->num_components; ci++) { + compptr = dstinfo->comp_info + ci; + comp_height = MCU_rows * compptr->v_samp_factor; + x_crop_blocks = x_crop_offset * compptr->h_samp_factor; + y_crop_blocks = y_crop_offset * compptr->v_samp_factor; + for (dst_blk_y = 0; dst_blk_y < compptr->height_in_blocks; + dst_blk_y += compptr->v_samp_factor) { + dst_buffer = (*srcinfo->mem->access_virt_barray) + ((j_common_ptr) srcinfo, dst_coef_arrays[ci], dst_blk_y, + (JDIMENSION) compptr->v_samp_factor, TRUE); + for (offset_y = 0; offset_y < compptr->v_samp_factor; offset_y++) { + for (dst_blk_x = 0; dst_blk_x < compptr->width_in_blocks; + dst_blk_x += compptr->h_samp_factor) { + src_buffer = (*srcinfo->mem->access_virt_barray) + ((j_common_ptr) srcinfo, src_coef_arrays[ci], + dst_blk_x + x_crop_blocks, + (JDIMENSION) compptr->h_samp_factor, FALSE); + for (offset_x = 0; offset_x < compptr->h_samp_factor; offset_x++) { + dst_ptr = dst_buffer[offset_y][dst_blk_x + offset_x]; + if (y_crop_blocks + dst_blk_y < comp_height) { + /* Block is within the mirrorable area. */ + src_ptr = src_buffer[offset_x] + [comp_height - y_crop_blocks - dst_blk_y - offset_y - 1]; + for (i = 0; i < DCTSIZE; i++) { + for (j = 0; j < DCTSIZE; j++) { + dst_ptr[j*DCTSIZE+i] = src_ptr[i*DCTSIZE+j]; + j++; + dst_ptr[j*DCTSIZE+i] = -src_ptr[i*DCTSIZE+j]; + } + } + } else { + /* Edge blocks are transposed but not mirrored. */ + src_ptr = src_buffer[offset_x] + [dst_blk_y + offset_y + y_crop_blocks]; + for (i = 0; i < DCTSIZE; i++) + for (j = 0; j < DCTSIZE; j++) + dst_ptr[j*DCTSIZE+i] = src_ptr[i*DCTSIZE+j]; + } + } + } + } + } + } +} + + +LOCAL(void) +do_rot_180 (j_decompress_ptr srcinfo, j_compress_ptr dstinfo, + JDIMENSION x_crop_offset, JDIMENSION y_crop_offset, + jvirt_barray_ptr *src_coef_arrays, + jvirt_barray_ptr *dst_coef_arrays) +/* 180 degree rotation is equivalent to + * 1. Vertical mirroring; + * 2. Horizontal mirroring. + * These two steps are merged into a single processing routine. + */ +{ + JDIMENSION MCU_cols, MCU_rows, comp_width, comp_height, dst_blk_x, dst_blk_y; + JDIMENSION x_crop_blocks, y_crop_blocks; + int ci, i, j, offset_y; + JBLOCKARRAY src_buffer, dst_buffer; + JBLOCKROW src_row_ptr, dst_row_ptr; + JCOEFPTR src_ptr, dst_ptr; + jpeg_component_info *compptr; + + MCU_cols = srcinfo->output_width / + (dstinfo->max_h_samp_factor * dstinfo->min_DCT_h_scaled_size); + MCU_rows = srcinfo->output_height / + (dstinfo->max_v_samp_factor * dstinfo->min_DCT_v_scaled_size); + + for (ci = 0; ci < dstinfo->num_components; ci++) { + compptr = dstinfo->comp_info + ci; + comp_width = MCU_cols * compptr->h_samp_factor; + comp_height = MCU_rows * compptr->v_samp_factor; + x_crop_blocks = x_crop_offset * compptr->h_samp_factor; + y_crop_blocks = y_crop_offset * compptr->v_samp_factor; + for (dst_blk_y = 0; dst_blk_y < compptr->height_in_blocks; + dst_blk_y += compptr->v_samp_factor) { + dst_buffer = (*srcinfo->mem->access_virt_barray) + ((j_common_ptr) srcinfo, dst_coef_arrays[ci], dst_blk_y, + (JDIMENSION) compptr->v_samp_factor, TRUE); + if (y_crop_blocks + dst_blk_y < comp_height) { + /* Row is within the vertically mirrorable area. */ + src_buffer = (*srcinfo->mem->access_virt_barray) + ((j_common_ptr) srcinfo, src_coef_arrays[ci], + comp_height - y_crop_blocks - dst_blk_y - + (JDIMENSION) compptr->v_samp_factor, + (JDIMENSION) compptr->v_samp_factor, FALSE); + } else { + /* Bottom-edge rows are only mirrored horizontally. */ + src_buffer = (*srcinfo->mem->access_virt_barray) + ((j_common_ptr) srcinfo, src_coef_arrays[ci], + dst_blk_y + y_crop_blocks, + (JDIMENSION) compptr->v_samp_factor, FALSE); + } + for (offset_y = 0; offset_y < compptr->v_samp_factor; offset_y++) { + dst_row_ptr = dst_buffer[offset_y]; + if (y_crop_blocks + dst_blk_y < comp_height) { + /* Row is within the mirrorable area. */ + src_row_ptr = src_buffer[compptr->v_samp_factor - offset_y - 1]; + for (dst_blk_x = 0; dst_blk_x < compptr->width_in_blocks; dst_blk_x++) { + dst_ptr = dst_row_ptr[dst_blk_x]; + if (x_crop_blocks + dst_blk_x < comp_width) { + /* Process the blocks that can be mirrored both ways. */ + src_ptr = src_row_ptr[comp_width - x_crop_blocks - dst_blk_x - 1]; + for (i = 0; i < DCTSIZE; i += 2) { + /* For even row, negate every odd column. */ + for (j = 0; j < DCTSIZE; j += 2) { + *dst_ptr++ = *src_ptr++; + *dst_ptr++ = - *src_ptr++; + } + /* For odd row, negate every even column. */ + for (j = 0; j < DCTSIZE; j += 2) { + *dst_ptr++ = - *src_ptr++; + *dst_ptr++ = *src_ptr++; + } + } + } else { + /* Any remaining right-edge blocks are only mirrored vertically. */ + src_ptr = src_row_ptr[x_crop_blocks + dst_blk_x]; + for (i = 0; i < DCTSIZE; i += 2) { + for (j = 0; j < DCTSIZE; j++) + *dst_ptr++ = *src_ptr++; + for (j = 0; j < DCTSIZE; j++) + *dst_ptr++ = - *src_ptr++; + } + } + } + } else { + /* Remaining rows are just mirrored horizontally. */ + src_row_ptr = src_buffer[offset_y]; + for (dst_blk_x = 0; dst_blk_x < compptr->width_in_blocks; dst_blk_x++) { + if (x_crop_blocks + dst_blk_x < comp_width) { + /* Process the blocks that can be mirrored. */ + dst_ptr = dst_row_ptr[dst_blk_x]; + src_ptr = src_row_ptr[comp_width - x_crop_blocks - dst_blk_x - 1]; + for (i = 0; i < DCTSIZE2; i += 2) { + *dst_ptr++ = *src_ptr++; + *dst_ptr++ = - *src_ptr++; + } + } else { + /* Any remaining right-edge blocks are only copied. */ + jcopy_block_row(src_row_ptr + dst_blk_x + x_crop_blocks, + dst_row_ptr + dst_blk_x, + (JDIMENSION) 1); + } + } + } + } + } + } +} + + +LOCAL(void) +do_transverse (j_decompress_ptr srcinfo, j_compress_ptr dstinfo, + JDIMENSION x_crop_offset, JDIMENSION y_crop_offset, + jvirt_barray_ptr *src_coef_arrays, + jvirt_barray_ptr *dst_coef_arrays) +/* Transverse transpose is equivalent to + * 1. 180 degree rotation; + * 2. Transposition; + * or + * 1. Horizontal mirroring; + * 2. Transposition; + * 3. Horizontal mirroring. + * These steps are merged into a single processing routine. + */ +{ + JDIMENSION MCU_cols, MCU_rows, comp_width, comp_height, dst_blk_x, dst_blk_y; + JDIMENSION x_crop_blocks, y_crop_blocks; + int ci, i, j, offset_x, offset_y; + JBLOCKARRAY src_buffer, dst_buffer; + JCOEFPTR src_ptr, dst_ptr; + jpeg_component_info *compptr; + + MCU_cols = srcinfo->output_height / + (dstinfo->max_h_samp_factor * dstinfo->min_DCT_h_scaled_size); + MCU_rows = srcinfo->output_width / + (dstinfo->max_v_samp_factor * dstinfo->min_DCT_v_scaled_size); + + for (ci = 0; ci < dstinfo->num_components; ci++) { + compptr = dstinfo->comp_info + ci; + comp_width = MCU_cols * compptr->h_samp_factor; + comp_height = MCU_rows * compptr->v_samp_factor; + x_crop_blocks = x_crop_offset * compptr->h_samp_factor; + y_crop_blocks = y_crop_offset * compptr->v_samp_factor; + for (dst_blk_y = 0; dst_blk_y < compptr->height_in_blocks; + dst_blk_y += compptr->v_samp_factor) { + dst_buffer = (*srcinfo->mem->access_virt_barray) + ((j_common_ptr) srcinfo, dst_coef_arrays[ci], dst_blk_y, + (JDIMENSION) compptr->v_samp_factor, TRUE); + for (offset_y = 0; offset_y < compptr->v_samp_factor; offset_y++) { + for (dst_blk_x = 0; dst_blk_x < compptr->width_in_blocks; + dst_blk_x += compptr->h_samp_factor) { + if (x_crop_blocks + dst_blk_x < comp_width) { + /* Block is within the mirrorable area. */ + src_buffer = (*srcinfo->mem->access_virt_barray) + ((j_common_ptr) srcinfo, src_coef_arrays[ci], + comp_width - x_crop_blocks - dst_blk_x - + (JDIMENSION) compptr->h_samp_factor, + (JDIMENSION) compptr->h_samp_factor, FALSE); + } else { + src_buffer = (*srcinfo->mem->access_virt_barray) + ((j_common_ptr) srcinfo, src_coef_arrays[ci], + dst_blk_x + x_crop_blocks, + (JDIMENSION) compptr->h_samp_factor, FALSE); + } + for (offset_x = 0; offset_x < compptr->h_samp_factor; offset_x++) { + dst_ptr = dst_buffer[offset_y][dst_blk_x + offset_x]; + if (y_crop_blocks + dst_blk_y < comp_height) { + if (x_crop_blocks + dst_blk_x < comp_width) { + /* Block is within the mirrorable area. */ + src_ptr = src_buffer[compptr->h_samp_factor - offset_x - 1] + [comp_height - y_crop_blocks - dst_blk_y - offset_y - 1]; + for (i = 0; i < DCTSIZE; i++) { + for (j = 0; j < DCTSIZE; j++) { + dst_ptr[j*DCTSIZE+i] = src_ptr[i*DCTSIZE+j]; + j++; + dst_ptr[j*DCTSIZE+i] = -src_ptr[i*DCTSIZE+j]; + } + i++; + for (j = 0; j < DCTSIZE; j++) { + dst_ptr[j*DCTSIZE+i] = -src_ptr[i*DCTSIZE+j]; + j++; + dst_ptr[j*DCTSIZE+i] = src_ptr[i*DCTSIZE+j]; + } + } + } else { + /* Right-edge blocks are mirrored in y only */ + src_ptr = src_buffer[offset_x] + [comp_height - y_crop_blocks - dst_blk_y - offset_y - 1]; + for (i = 0; i < DCTSIZE; i++) { + for (j = 0; j < DCTSIZE; j++) { + dst_ptr[j*DCTSIZE+i] = src_ptr[i*DCTSIZE+j]; + j++; + dst_ptr[j*DCTSIZE+i] = -src_ptr[i*DCTSIZE+j]; + } + } + } + } else { + if (x_crop_blocks + dst_blk_x < comp_width) { + /* Bottom-edge blocks are mirrored in x only */ + src_ptr = src_buffer[compptr->h_samp_factor - offset_x - 1] + [dst_blk_y + offset_y + y_crop_blocks]; + for (i = 0; i < DCTSIZE; i++) { + for (j = 0; j < DCTSIZE; j++) + dst_ptr[j*DCTSIZE+i] = src_ptr[i*DCTSIZE+j]; + i++; + for (j = 0; j < DCTSIZE; j++) + dst_ptr[j*DCTSIZE+i] = -src_ptr[i*DCTSIZE+j]; + } + } else { + /* At lower right corner, just transpose, no mirroring */ + src_ptr = src_buffer[offset_x] + [dst_blk_y + offset_y + y_crop_blocks]; + for (i = 0; i < DCTSIZE; i++) + for (j = 0; j < DCTSIZE; j++) + dst_ptr[j*DCTSIZE+i] = src_ptr[i*DCTSIZE+j]; + } + } + } + } + } + } + } +} + + +/* Parse an unsigned integer: subroutine for jtransform_parse_crop_spec. + * Returns TRUE if valid integer found, FALSE if not. + * *strptr is advanced over the digit string, and *result is set to its value. + */ + +LOCAL(boolean) +jt_read_integer (const char ** strptr, JDIMENSION * result) +{ + const char * ptr = *strptr; + JDIMENSION val = 0; + + for (; isdigit(*ptr); ptr++) { + val = val * 10 + (JDIMENSION) (*ptr - '0'); + } + *result = val; + if (ptr == *strptr) + return FALSE; /* oops, no digits */ + *strptr = ptr; + return TRUE; +} + + +/* Parse a crop specification (written in X11 geometry style). + * The routine returns TRUE if the spec string is valid, FALSE if not. + * + * The crop spec string should have the format + * [f]x[f]{+-}{+-} + * where width, height, xoffset, and yoffset are unsigned integers. + * Each of the elements can be omitted to indicate a default value. + * (A weakness of this style is that it is not possible to omit xoffset + * while specifying yoffset, since they look alike.) + * + * This code is loosely based on XParseGeometry from the X11 distribution. + */ + +GLOBAL(boolean) +jtransform_parse_crop_spec (jpeg_transform_info *info, const char *spec) +{ + info->crop = FALSE; + info->crop_width_set = JCROP_UNSET; + info->crop_height_set = JCROP_UNSET; + info->crop_xoffset_set = JCROP_UNSET; + info->crop_yoffset_set = JCROP_UNSET; + + if (isdigit(*spec)) { + /* fetch width */ + if (! jt_read_integer(&spec, &info->crop_width)) + return FALSE; + if (*spec == 'f' || *spec == 'F') { + spec++; + info->crop_width_set = JCROP_FORCE; + } else + info->crop_width_set = JCROP_POS; + } + if (*spec == 'x' || *spec == 'X') { + /* fetch height */ + spec++; + if (! jt_read_integer(&spec, &info->crop_height)) + return FALSE; + if (*spec == 'f' || *spec == 'F') { + spec++; + info->crop_height_set = JCROP_FORCE; + } else + info->crop_height_set = JCROP_POS; + } + if (*spec == '+' || *spec == '-') { + /* fetch xoffset */ + info->crop_xoffset_set = (*spec == '-') ? JCROP_NEG : JCROP_POS; + spec++; + if (! jt_read_integer(&spec, &info->crop_xoffset)) + return FALSE; + } + if (*spec == '+' || *spec == '-') { + /* fetch yoffset */ + info->crop_yoffset_set = (*spec == '-') ? JCROP_NEG : JCROP_POS; + spec++; + if (! jt_read_integer(&spec, &info->crop_yoffset)) + return FALSE; + } + /* We had better have gotten to the end of the string. */ + if (*spec != '\0') + return FALSE; + info->crop = TRUE; + return TRUE; +} + + +/* Trim off any partial iMCUs on the indicated destination edge */ + +LOCAL(void) +trim_right_edge (jpeg_transform_info *info, JDIMENSION full_width) +{ + JDIMENSION MCU_cols; + + MCU_cols = info->output_width / info->iMCU_sample_width; + if (MCU_cols > 0 && info->x_crop_offset + MCU_cols == + full_width / info->iMCU_sample_width) + info->output_width = MCU_cols * info->iMCU_sample_width; +} + +LOCAL(void) +trim_bottom_edge (jpeg_transform_info *info, JDIMENSION full_height) +{ + JDIMENSION MCU_rows; + + MCU_rows = info->output_height / info->iMCU_sample_height; + if (MCU_rows > 0 && info->y_crop_offset + MCU_rows == + full_height / info->iMCU_sample_height) + info->output_height = MCU_rows * info->iMCU_sample_height; +} + + +/* Request any required workspace. + * + * This routine figures out the size that the output image will be + * (which implies that all the transform parameters must be set before + * it is called). + * + * We allocate the workspace virtual arrays from the source decompression + * object, so that all the arrays (both the original data and the workspace) + * will be taken into account while making memory management decisions. + * Hence, this routine must be called after jpeg_read_header (which reads + * the image dimensions) and before jpeg_read_coefficients (which realizes + * the source's virtual arrays). + * + * This function returns FALSE right away if -perfect is given + * and transformation is not perfect. Otherwise returns TRUE. + */ + +GLOBAL(boolean) +jtransform_request_workspace (j_decompress_ptr srcinfo, + jpeg_transform_info *info) +{ + jvirt_barray_ptr *coef_arrays; + boolean need_workspace, transpose_it; + jpeg_component_info *compptr; + JDIMENSION xoffset, yoffset; + JDIMENSION width_in_iMCUs, height_in_iMCUs; + JDIMENSION width_in_blocks, height_in_blocks; + int ci, h_samp_factor, v_samp_factor; + + /* Determine number of components in output image */ + if (info->force_grayscale && + srcinfo->jpeg_color_space == JCS_YCbCr && + srcinfo->num_components == 3) + /* We'll only process the first component */ + info->num_components = 1; + else + /* Process all the components */ + info->num_components = srcinfo->num_components; + + /* Compute output image dimensions and related values. */ + jpeg_core_output_dimensions(srcinfo); + + /* Return right away if -perfect is given and transformation is not perfect. + */ + if (info->perfect) { + if (info->num_components == 1) { + if (!jtransform_perfect_transform(srcinfo->output_width, + srcinfo->output_height, + srcinfo->min_DCT_h_scaled_size, + srcinfo->min_DCT_v_scaled_size, + info->transform)) + return FALSE; + } else { + if (!jtransform_perfect_transform(srcinfo->output_width, + srcinfo->output_height, + srcinfo->max_h_samp_factor * srcinfo->min_DCT_h_scaled_size, + srcinfo->max_v_samp_factor * srcinfo->min_DCT_v_scaled_size, + info->transform)) + return FALSE; + } + } + + /* If there is only one output component, force the iMCU size to be 1; + * else use the source iMCU size. (This allows us to do the right thing + * when reducing color to grayscale, and also provides a handy way of + * cleaning up "funny" grayscale images whose sampling factors are not 1x1.) + */ + switch (info->transform) { + case JXFORM_TRANSPOSE: + case JXFORM_TRANSVERSE: + case JXFORM_ROT_90: + case JXFORM_ROT_270: + info->output_width = srcinfo->output_height; + info->output_height = srcinfo->output_width; + if (info->num_components == 1) { + info->iMCU_sample_width = srcinfo->min_DCT_v_scaled_size; + info->iMCU_sample_height = srcinfo->min_DCT_h_scaled_size; + } else { + info->iMCU_sample_width = + srcinfo->max_v_samp_factor * srcinfo->min_DCT_v_scaled_size; + info->iMCU_sample_height = + srcinfo->max_h_samp_factor * srcinfo->min_DCT_h_scaled_size; + } + break; + default: + info->output_width = srcinfo->output_width; + info->output_height = srcinfo->output_height; + if (info->num_components == 1) { + info->iMCU_sample_width = srcinfo->min_DCT_h_scaled_size; + info->iMCU_sample_height = srcinfo->min_DCT_v_scaled_size; + } else { + info->iMCU_sample_width = + srcinfo->max_h_samp_factor * srcinfo->min_DCT_h_scaled_size; + info->iMCU_sample_height = + srcinfo->max_v_samp_factor * srcinfo->min_DCT_v_scaled_size; + } + break; + } + + /* If cropping has been requested, compute the crop area's position and + * dimensions, ensuring that its upper left corner falls at an iMCU boundary. + */ + if (info->crop) { + /* Insert default values for unset crop parameters */ + if (info->crop_xoffset_set == JCROP_UNSET) + info->crop_xoffset = 0; /* default to +0 */ + if (info->crop_yoffset_set == JCROP_UNSET) + info->crop_yoffset = 0; /* default to +0 */ + if (info->crop_xoffset >= info->output_width || + info->crop_yoffset >= info->output_height) + ERREXIT(srcinfo, JERR_BAD_CROP_SPEC); + if (info->crop_width_set == JCROP_UNSET) + info->crop_width = info->output_width - info->crop_xoffset; + if (info->crop_height_set == JCROP_UNSET) + info->crop_height = info->output_height - info->crop_yoffset; + /* Ensure parameters are valid */ + if (info->crop_width <= 0 || info->crop_width > info->output_width || + info->crop_height <= 0 || info->crop_height > info->output_height || + info->crop_xoffset > info->output_width - info->crop_width || + info->crop_yoffset > info->output_height - info->crop_height) + ERREXIT(srcinfo, JERR_BAD_CROP_SPEC); + /* Convert negative crop offsets into regular offsets */ + if (info->crop_xoffset_set == JCROP_NEG) + xoffset = info->output_width - info->crop_width - info->crop_xoffset; + else + xoffset = info->crop_xoffset; + if (info->crop_yoffset_set == JCROP_NEG) + yoffset = info->output_height - info->crop_height - info->crop_yoffset; + else + yoffset = info->crop_yoffset; + /* Now adjust so that upper left corner falls at an iMCU boundary */ + if (info->crop_width_set == JCROP_FORCE) + info->output_width = info->crop_width; + else + info->output_width = + info->crop_width + (xoffset % info->iMCU_sample_width); + if (info->crop_height_set == JCROP_FORCE) + info->output_height = info->crop_height; + else + info->output_height = + info->crop_height + (yoffset % info->iMCU_sample_height); + /* Save x/y offsets measured in iMCUs */ + info->x_crop_offset = xoffset / info->iMCU_sample_width; + info->y_crop_offset = yoffset / info->iMCU_sample_height; + } else { + info->x_crop_offset = 0; + info->y_crop_offset = 0; + } + + /* Figure out whether we need workspace arrays, + * and if so whether they are transposed relative to the source. + */ + need_workspace = FALSE; + transpose_it = FALSE; + switch (info->transform) { + case JXFORM_NONE: + if (info->x_crop_offset != 0 || info->y_crop_offset != 0) + need_workspace = TRUE; + /* No workspace needed if neither cropping nor transforming */ + break; + case JXFORM_FLIP_H: + if (info->trim) + trim_right_edge(info, srcinfo->output_width); + if (info->y_crop_offset != 0) + need_workspace = TRUE; + /* do_flip_h_no_crop doesn't need a workspace array */ + break; + case JXFORM_FLIP_V: + if (info->trim) + trim_bottom_edge(info, srcinfo->output_height); + /* Need workspace arrays having same dimensions as source image. */ + need_workspace = TRUE; + break; + case JXFORM_TRANSPOSE: + /* transpose does NOT have to trim anything */ + /* Need workspace arrays having transposed dimensions. */ + need_workspace = TRUE; + transpose_it = TRUE; + break; + case JXFORM_TRANSVERSE: + if (info->trim) { + trim_right_edge(info, srcinfo->output_height); + trim_bottom_edge(info, srcinfo->output_width); + } + /* Need workspace arrays having transposed dimensions. */ + need_workspace = TRUE; + transpose_it = TRUE; + break; + case JXFORM_ROT_90: + if (info->trim) + trim_right_edge(info, srcinfo->output_height); + /* Need workspace arrays having transposed dimensions. */ + need_workspace = TRUE; + transpose_it = TRUE; + break; + case JXFORM_ROT_180: + if (info->trim) { + trim_right_edge(info, srcinfo->output_width); + trim_bottom_edge(info, srcinfo->output_height); + } + /* Need workspace arrays having same dimensions as source image. */ + need_workspace = TRUE; + break; + case JXFORM_ROT_270: + if (info->trim) + trim_bottom_edge(info, srcinfo->output_width); + /* Need workspace arrays having transposed dimensions. */ + need_workspace = TRUE; + transpose_it = TRUE; + break; + } + + /* Allocate workspace if needed. + * Note that we allocate arrays padded out to the next iMCU boundary, + * so that transform routines need not worry about missing edge blocks. + */ + if (need_workspace) { + coef_arrays = (jvirt_barray_ptr *) + (*srcinfo->mem->alloc_small) ((j_common_ptr) srcinfo, JPOOL_IMAGE, + SIZEOF(jvirt_barray_ptr) * info->num_components); + width_in_iMCUs = (JDIMENSION) + jdiv_round_up((long) info->output_width, + (long) info->iMCU_sample_width); + height_in_iMCUs = (JDIMENSION) + jdiv_round_up((long) info->output_height, + (long) info->iMCU_sample_height); + for (ci = 0; ci < info->num_components; ci++) { + compptr = srcinfo->comp_info + ci; + if (info->num_components == 1) { + /* we're going to force samp factors to 1x1 in this case */ + h_samp_factor = v_samp_factor = 1; + } else if (transpose_it) { + h_samp_factor = compptr->v_samp_factor; + v_samp_factor = compptr->h_samp_factor; + } else { + h_samp_factor = compptr->h_samp_factor; + v_samp_factor = compptr->v_samp_factor; + } + width_in_blocks = width_in_iMCUs * h_samp_factor; + height_in_blocks = height_in_iMCUs * v_samp_factor; + coef_arrays[ci] = (*srcinfo->mem->request_virt_barray) + ((j_common_ptr) srcinfo, JPOOL_IMAGE, FALSE, + width_in_blocks, height_in_blocks, (JDIMENSION) v_samp_factor); + } + info->workspace_coef_arrays = coef_arrays; + } else + info->workspace_coef_arrays = NULL; + + return TRUE; +} + + +/* Transpose destination image parameters */ + +LOCAL(void) +transpose_critical_parameters (j_compress_ptr dstinfo) +{ + int tblno, i, j, ci, itemp; + jpeg_component_info *compptr; + JQUANT_TBL *qtblptr; + JDIMENSION jtemp; + UINT16 qtemp; + + /* Transpose image dimensions */ + jtemp = dstinfo->image_width; + dstinfo->image_width = dstinfo->image_height; + dstinfo->image_height = jtemp; + itemp = dstinfo->min_DCT_h_scaled_size; + dstinfo->min_DCT_h_scaled_size = dstinfo->min_DCT_v_scaled_size; + dstinfo->min_DCT_v_scaled_size = itemp; + + /* Transpose sampling factors */ + for (ci = 0; ci < dstinfo->num_components; ci++) { + compptr = dstinfo->comp_info + ci; + itemp = compptr->h_samp_factor; + compptr->h_samp_factor = compptr->v_samp_factor; + compptr->v_samp_factor = itemp; + } + + /* Transpose quantization tables */ + for (tblno = 0; tblno < NUM_QUANT_TBLS; tblno++) { + qtblptr = dstinfo->quant_tbl_ptrs[tblno]; + if (qtblptr != NULL) { + for (i = 0; i < DCTSIZE; i++) { + for (j = 0; j < i; j++) { + qtemp = qtblptr->quantval[i*DCTSIZE+j]; + qtblptr->quantval[i*DCTSIZE+j] = qtblptr->quantval[j*DCTSIZE+i]; + qtblptr->quantval[j*DCTSIZE+i] = qtemp; + } + } + } + } +} + + +/* Adjust Exif image parameters. + * + * We try to adjust the Tags ExifImageWidth and ExifImageHeight if possible. + */ + +LOCAL(void) +adjust_exif_parameters (JOCTET FAR * data, unsigned int length, + JDIMENSION new_width, JDIMENSION new_height) +{ + boolean is_motorola; /* Flag for byte order */ + unsigned int number_of_tags, tagnum; + unsigned int firstoffset, offset; + JDIMENSION new_value; + + if (length < 12) return; /* Length of an IFD entry */ + + /* Discover byte order */ + if (GETJOCTET(data[0]) == 0x49 && GETJOCTET(data[1]) == 0x49) + is_motorola = FALSE; + else if (GETJOCTET(data[0]) == 0x4D && GETJOCTET(data[1]) == 0x4D) + is_motorola = TRUE; + else + return; + + /* Check Tag Mark */ + if (is_motorola) { + if (GETJOCTET(data[2]) != 0) return; + if (GETJOCTET(data[3]) != 0x2A) return; + } else { + if (GETJOCTET(data[3]) != 0) return; + if (GETJOCTET(data[2]) != 0x2A) return; + } + + /* Get first IFD offset (offset to IFD0) */ + if (is_motorola) { + if (GETJOCTET(data[4]) != 0) return; + if (GETJOCTET(data[5]) != 0) return; + firstoffset = GETJOCTET(data[6]); + firstoffset <<= 8; + firstoffset += GETJOCTET(data[7]); + } else { + if (GETJOCTET(data[7]) != 0) return; + if (GETJOCTET(data[6]) != 0) return; + firstoffset = GETJOCTET(data[5]); + firstoffset <<= 8; + firstoffset += GETJOCTET(data[4]); + } + if (firstoffset > length - 2) return; /* check end of data segment */ + + /* Get the number of directory entries contained in this IFD */ + if (is_motorola) { + number_of_tags = GETJOCTET(data[firstoffset]); + number_of_tags <<= 8; + number_of_tags += GETJOCTET(data[firstoffset+1]); + } else { + number_of_tags = GETJOCTET(data[firstoffset+1]); + number_of_tags <<= 8; + number_of_tags += GETJOCTET(data[firstoffset]); + } + if (number_of_tags == 0) return; + firstoffset += 2; + + /* Search for ExifSubIFD offset Tag in IFD0 */ + for (;;) { + if (firstoffset > length - 12) return; /* check end of data segment */ + /* Get Tag number */ + if (is_motorola) { + tagnum = GETJOCTET(data[firstoffset]); + tagnum <<= 8; + tagnum += GETJOCTET(data[firstoffset+1]); + } else { + tagnum = GETJOCTET(data[firstoffset+1]); + tagnum <<= 8; + tagnum += GETJOCTET(data[firstoffset]); + } + if (tagnum == 0x8769) break; /* found ExifSubIFD offset Tag */ + if (--number_of_tags == 0) return; + firstoffset += 12; + } + + /* Get the ExifSubIFD offset */ + if (is_motorola) { + if (GETJOCTET(data[firstoffset+8]) != 0) return; + if (GETJOCTET(data[firstoffset+9]) != 0) return; + offset = GETJOCTET(data[firstoffset+10]); + offset <<= 8; + offset += GETJOCTET(data[firstoffset+11]); + } else { + if (GETJOCTET(data[firstoffset+11]) != 0) return; + if (GETJOCTET(data[firstoffset+10]) != 0) return; + offset = GETJOCTET(data[firstoffset+9]); + offset <<= 8; + offset += GETJOCTET(data[firstoffset+8]); + } + if (offset > length - 2) return; /* check end of data segment */ + + /* Get the number of directory entries contained in this SubIFD */ + if (is_motorola) { + number_of_tags = GETJOCTET(data[offset]); + number_of_tags <<= 8; + number_of_tags += GETJOCTET(data[offset+1]); + } else { + number_of_tags = GETJOCTET(data[offset+1]); + number_of_tags <<= 8; + number_of_tags += GETJOCTET(data[offset]); + } + if (number_of_tags < 2) return; + offset += 2; + + /* Search for ExifImageWidth and ExifImageHeight Tags in this SubIFD */ + do { + if (offset > length - 12) return; /* check end of data segment */ + /* Get Tag number */ + if (is_motorola) { + tagnum = GETJOCTET(data[offset]); + tagnum <<= 8; + tagnum += GETJOCTET(data[offset+1]); + } else { + tagnum = GETJOCTET(data[offset+1]); + tagnum <<= 8; + tagnum += GETJOCTET(data[offset]); + } + if (tagnum == 0xA002 || tagnum == 0xA003) { + if (tagnum == 0xA002) + new_value = new_width; /* ExifImageWidth Tag */ + else + new_value = new_height; /* ExifImageHeight Tag */ + if (is_motorola) { + data[offset+2] = 0; /* Format = unsigned long (4 octets) */ + data[offset+3] = 4; + data[offset+4] = 0; /* Number Of Components = 1 */ + data[offset+5] = 0; + data[offset+6] = 0; + data[offset+7] = 1; + data[offset+8] = 0; + data[offset+9] = 0; + data[offset+10] = (JOCTET)((new_value >> 8) & 0xFF); + data[offset+11] = (JOCTET)(new_value & 0xFF); + } else { + data[offset+2] = 4; /* Format = unsigned long (4 octets) */ + data[offset+3] = 0; + data[offset+4] = 1; /* Number Of Components = 1 */ + data[offset+5] = 0; + data[offset+6] = 0; + data[offset+7] = 0; + data[offset+8] = (JOCTET)(new_value & 0xFF); + data[offset+9] = (JOCTET)((new_value >> 8) & 0xFF); + data[offset+10] = 0; + data[offset+11] = 0; + } + } + offset += 12; + } while (--number_of_tags); +} + + +/* Adjust output image parameters as needed. + * + * This must be called after jpeg_copy_critical_parameters() + * and before jpeg_write_coefficients(). + * + * The return value is the set of virtual coefficient arrays to be written + * (either the ones allocated by jtransform_request_workspace, or the + * original source data arrays). The caller will need to pass this value + * to jpeg_write_coefficients(). + */ + +GLOBAL(jvirt_barray_ptr *) +jtransform_adjust_parameters (j_decompress_ptr srcinfo, + j_compress_ptr dstinfo, + jvirt_barray_ptr *src_coef_arrays, + jpeg_transform_info *info) +{ + /* If force-to-grayscale is requested, adjust destination parameters */ + if (info->force_grayscale) { + /* First, ensure we have YCbCr or grayscale data, and that the source's + * Y channel is full resolution. (No reasonable person would make Y + * be less than full resolution, so actually coping with that case + * isn't worth extra code space. But we check it to avoid crashing.) + */ + if (((dstinfo->jpeg_color_space == JCS_YCbCr && + dstinfo->num_components == 3) || + (dstinfo->jpeg_color_space == JCS_GRAYSCALE && + dstinfo->num_components == 1)) && + srcinfo->comp_info[0].h_samp_factor == srcinfo->max_h_samp_factor && + srcinfo->comp_info[0].v_samp_factor == srcinfo->max_v_samp_factor) { + /* We use jpeg_set_colorspace to make sure subsidiary settings get fixed + * properly. Among other things, it sets the target h_samp_factor & + * v_samp_factor to 1, which typically won't match the source. + * We have to preserve the source's quantization table number, however. + */ + int sv_quant_tbl_no = dstinfo->comp_info[0].quant_tbl_no; + jpeg_set_colorspace(dstinfo, JCS_GRAYSCALE); + dstinfo->comp_info[0].quant_tbl_no = sv_quant_tbl_no; + } else { + /* Sorry, can't do it */ + ERREXIT(dstinfo, JERR_CONVERSION_NOTIMPL); + } + } else if (info->num_components == 1) { + /* For a single-component source, we force the destination sampling factors + * to 1x1, with or without force_grayscale. This is useful because some + * decoders choke on grayscale images with other sampling factors. + */ + dstinfo->comp_info[0].h_samp_factor = 1; + dstinfo->comp_info[0].v_samp_factor = 1; + } + + /* Correct the destination's image dimensions as necessary + * for rotate/flip, resize, and crop operations. + */ + dstinfo->jpeg_width = info->output_width; + dstinfo->jpeg_height = info->output_height; + + /* Transpose destination image parameters */ + switch (info->transform) { + case JXFORM_TRANSPOSE: + case JXFORM_TRANSVERSE: + case JXFORM_ROT_90: + case JXFORM_ROT_270: + transpose_critical_parameters(dstinfo); + break; + default: + break; + } + + /* Adjust Exif properties */ + if (srcinfo->marker_list != NULL && + srcinfo->marker_list->marker == JPEG_APP0+1 && + srcinfo->marker_list->data_length >= 6 && + GETJOCTET(srcinfo->marker_list->data[0]) == 0x45 && + GETJOCTET(srcinfo->marker_list->data[1]) == 0x78 && + GETJOCTET(srcinfo->marker_list->data[2]) == 0x69 && + GETJOCTET(srcinfo->marker_list->data[3]) == 0x66 && + GETJOCTET(srcinfo->marker_list->data[4]) == 0 && + GETJOCTET(srcinfo->marker_list->data[5]) == 0) { + /* Suppress output of JFIF marker */ + dstinfo->write_JFIF_header = FALSE; + /* Adjust Exif image parameters */ + if (dstinfo->jpeg_width != srcinfo->image_width || + dstinfo->jpeg_height != srcinfo->image_height) + /* Align data segment to start of TIFF structure for parsing */ + adjust_exif_parameters(srcinfo->marker_list->data + 6, + srcinfo->marker_list->data_length - 6, + dstinfo->jpeg_width, dstinfo->jpeg_height); + } + + /* Return the appropriate output data set */ + if (info->workspace_coef_arrays != NULL) + return info->workspace_coef_arrays; + return src_coef_arrays; +} + + +/* Execute the actual transformation, if any. + * + * This must be called *after* jpeg_write_coefficients, because it depends + * on jpeg_write_coefficients to have computed subsidiary values such as + * the per-component width and height fields in the destination object. + * + * Note that some transformations will modify the source data arrays! + */ + +GLOBAL(void) +jtransform_execute_transform (j_decompress_ptr srcinfo, + j_compress_ptr dstinfo, + jvirt_barray_ptr *src_coef_arrays, + jpeg_transform_info *info) +{ + jvirt_barray_ptr *dst_coef_arrays = info->workspace_coef_arrays; + + /* Note: conditions tested here should match those in switch statement + * in jtransform_request_workspace() + */ + switch (info->transform) { + case JXFORM_NONE: + if (info->x_crop_offset != 0 || info->y_crop_offset != 0) + do_crop(srcinfo, dstinfo, info->x_crop_offset, info->y_crop_offset, + src_coef_arrays, dst_coef_arrays); + break; + case JXFORM_FLIP_H: + if (info->y_crop_offset != 0) + do_flip_h(srcinfo, dstinfo, info->x_crop_offset, info->y_crop_offset, + src_coef_arrays, dst_coef_arrays); + else + do_flip_h_no_crop(srcinfo, dstinfo, info->x_crop_offset, + src_coef_arrays); + break; + case JXFORM_FLIP_V: + do_flip_v(srcinfo, dstinfo, info->x_crop_offset, info->y_crop_offset, + src_coef_arrays, dst_coef_arrays); + break; + case JXFORM_TRANSPOSE: + do_transpose(srcinfo, dstinfo, info->x_crop_offset, info->y_crop_offset, + src_coef_arrays, dst_coef_arrays); + break; + case JXFORM_TRANSVERSE: + do_transverse(srcinfo, dstinfo, info->x_crop_offset, info->y_crop_offset, + src_coef_arrays, dst_coef_arrays); + break; + case JXFORM_ROT_90: + do_rot_90(srcinfo, dstinfo, info->x_crop_offset, info->y_crop_offset, + src_coef_arrays, dst_coef_arrays); + break; + case JXFORM_ROT_180: + do_rot_180(srcinfo, dstinfo, info->x_crop_offset, info->y_crop_offset, + src_coef_arrays, dst_coef_arrays); + break; + case JXFORM_ROT_270: + do_rot_270(srcinfo, dstinfo, info->x_crop_offset, info->y_crop_offset, + src_coef_arrays, dst_coef_arrays); + break; + } +} + +/* jtransform_perfect_transform + * + * Determine whether lossless transformation is perfectly + * possible for a specified image and transformation. + * + * Inputs: + * image_width, image_height: source image dimensions. + * MCU_width, MCU_height: pixel dimensions of MCU. + * transform: transformation identifier. + * Parameter sources from initialized jpeg_struct + * (after reading source header): + * image_width = cinfo.image_width + * image_height = cinfo.image_height + * MCU_width = cinfo.max_h_samp_factor * cinfo.block_size + * MCU_height = cinfo.max_v_samp_factor * cinfo.block_size + * Result: + * TRUE = perfect transformation possible + * FALSE = perfect transformation not possible + * (may use custom action then) + */ + +GLOBAL(boolean) +jtransform_perfect_transform(JDIMENSION image_width, JDIMENSION image_height, + int MCU_width, int MCU_height, + JXFORM_CODE transform) +{ + boolean result = TRUE; /* initialize TRUE */ + + switch (transform) { + case JXFORM_FLIP_H: + case JXFORM_ROT_270: + if (image_width % (JDIMENSION) MCU_width) + result = FALSE; + break; + case JXFORM_FLIP_V: + case JXFORM_ROT_90: + if (image_height % (JDIMENSION) MCU_height) + result = FALSE; + break; + case JXFORM_TRANSVERSE: + case JXFORM_ROT_180: + if (image_width % (JDIMENSION) MCU_width) + result = FALSE; + if (image_height % (JDIMENSION) MCU_height) + result = FALSE; + break; + default: + break; + } + + return result; +} + +#endif /* TRANSFORMS_SUPPORTED */ + + +/* Setup decompression object to save desired markers in memory. + * This must be called before jpeg_read_header() to have the desired effect. + */ + +GLOBAL(void) +jcopy_markers_setup (j_decompress_ptr srcinfo, JCOPY_OPTION option) +{ +#ifdef SAVE_MARKERS_SUPPORTED + int m; + + /* Save comments except under NONE option */ + if (option != JCOPYOPT_NONE) { + jpeg_save_markers(srcinfo, JPEG_COM, 0xFFFF); + } + /* Save all types of APPn markers iff ALL option */ + if (option == JCOPYOPT_ALL) { + for (m = 0; m < 16; m++) + jpeg_save_markers(srcinfo, JPEG_APP0 + m, 0xFFFF); + } +#endif /* SAVE_MARKERS_SUPPORTED */ +} + +/* Copy markers saved in the given source object to the destination object. + * This should be called just after jpeg_start_compress() or + * jpeg_write_coefficients(). + * Note that those routines will have written the SOI, and also the + * JFIF APP0 or Adobe APP14 markers if selected. + */ + +GLOBAL(void) +jcopy_markers_execute (j_decompress_ptr srcinfo, j_compress_ptr dstinfo, + JCOPY_OPTION option) +{ + jpeg_saved_marker_ptr marker; + + /* In the current implementation, we don't actually need to examine the + * option flag here; we just copy everything that got saved. + * But to avoid confusion, we do not output JFIF and Adobe APP14 markers + * if the encoder library already wrote one. + */ + for (marker = srcinfo->marker_list; marker != NULL; marker = marker->next) { + if (dstinfo->write_JFIF_header && + marker->marker == JPEG_APP0 && + marker->data_length >= 5 && + GETJOCTET(marker->data[0]) == 0x4A && + GETJOCTET(marker->data[1]) == 0x46 && + GETJOCTET(marker->data[2]) == 0x49 && + GETJOCTET(marker->data[3]) == 0x46 && + GETJOCTET(marker->data[4]) == 0) + continue; /* reject duplicate JFIF */ + if (dstinfo->write_Adobe_marker && + marker->marker == JPEG_APP0+14 && + marker->data_length >= 5 && + GETJOCTET(marker->data[0]) == 0x41 && + GETJOCTET(marker->data[1]) == 0x64 && + GETJOCTET(marker->data[2]) == 0x6F && + GETJOCTET(marker->data[3]) == 0x62 && + GETJOCTET(marker->data[4]) == 0x65) + continue; /* reject duplicate Adobe */ +#ifdef NEED_FAR_POINTERS + /* We could use jpeg_write_marker if the data weren't FAR... */ + { + unsigned int i; + jpeg_write_m_header(dstinfo, marker->marker, marker->data_length); + for (i = 0; i < marker->data_length; i++) + jpeg_write_m_byte(dstinfo, marker->data[i]); + } +#else + jpeg_write_marker(dstinfo, marker->marker, + marker->data, marker->data_length); +#endif + } +} diff --git a/jpeg/transupp.h b/jpeg/transupp.h new file mode 100644 index 0000000..9aa0af3 --- /dev/null +++ b/jpeg/transupp.h @@ -0,0 +1,213 @@ +/* + * transupp.h + * + * Copyright (C) 1997-2011, Thomas G. Lane, Guido Vollbeding. + * This file is part of the Independent JPEG Group's software. + * For conditions of distribution and use, see the accompanying README file. + * + * This file contains declarations for image transformation routines and + * other utility code used by the jpegtran sample application. These are + * NOT part of the core JPEG library. But we keep these routines separate + * from jpegtran.c to ease the task of maintaining jpegtran-like programs + * that have other user interfaces. + * + * NOTE: all the routines declared here have very specific requirements + * about when they are to be executed during the reading and writing of the + * source and destination files. See the comments in transupp.c, or see + * jpegtran.c for an example of correct usage. + */ + +/* If you happen not to want the image transform support, disable it here */ +#ifndef TRANSFORMS_SUPPORTED +#define TRANSFORMS_SUPPORTED 1 /* 0 disables transform code */ +#endif + +/* + * Although rotating and flipping data expressed as DCT coefficients is not + * hard, there is an asymmetry in the JPEG format specification for images + * whose dimensions aren't multiples of the iMCU size. The right and bottom + * image edges are padded out to the next iMCU boundary with junk data; but + * no padding is possible at the top and left edges. If we were to flip + * the whole image including the pad data, then pad garbage would become + * visible at the top and/or left, and real pixels would disappear into the + * pad margins --- perhaps permanently, since encoders & decoders may not + * bother to preserve DCT blocks that appear to be completely outside the + * nominal image area. So, we have to exclude any partial iMCUs from the + * basic transformation. + * + * Transpose is the only transformation that can handle partial iMCUs at the + * right and bottom edges completely cleanly. flip_h can flip partial iMCUs + * at the bottom, but leaves any partial iMCUs at the right edge untouched. + * Similarly flip_v leaves any partial iMCUs at the bottom edge untouched. + * The other transforms are defined as combinations of these basic transforms + * and process edge blocks in a way that preserves the equivalence. + * + * The "trim" option causes untransformable partial iMCUs to be dropped; + * this is not strictly lossless, but it usually gives the best-looking + * result for odd-size images. Note that when this option is active, + * the expected mathematical equivalences between the transforms may not hold. + * (For example, -rot 270 -trim trims only the bottom edge, but -rot 90 -trim + * followed by -rot 180 -trim trims both edges.) + * + * We also offer a lossless-crop option, which discards data outside a given + * image region but losslessly preserves what is inside. Like the rotate and + * flip transforms, lossless crop is restricted by the JPEG format: the upper + * left corner of the selected region must fall on an iMCU boundary. If this + * does not hold for the given crop parameters, we silently move the upper left + * corner up and/or left to make it so, simultaneously increasing the region + * dimensions to keep the lower right crop corner unchanged. (Thus, the + * output image covers at least the requested region, but may cover more.) + * The adjustment of the region dimensions may be optionally disabled. + * + * We also provide a lossless-resize option, which is kind of a lossless-crop + * operation in the DCT coefficient block domain - it discards higher-order + * coefficients and losslessly preserves lower-order coefficients of a + * sub-block. + * + * Rotate/flip transform, resize, and crop can be requested together in a + * single invocation. The crop is applied last --- that is, the crop region + * is specified in terms of the destination image after transform/resize. + * + * We also offer a "force to grayscale" option, which simply discards the + * chrominance channels of a YCbCr image. This is lossless in the sense that + * the luminance channel is preserved exactly. It's not the same kind of + * thing as the rotate/flip transformations, but it's convenient to handle it + * as part of this package, mainly because the transformation routines have to + * be aware of the option to know how many components to work on. + */ + + +/* Short forms of external names for systems with brain-damaged linkers. */ + +#ifdef NEED_SHORT_EXTERNAL_NAMES +#define jtransform_parse_crop_spec jTrParCrop +#define jtransform_request_workspace jTrRequest +#define jtransform_adjust_parameters jTrAdjust +#define jtransform_execute_transform jTrExec +#define jtransform_perfect_transform jTrPerfect +#define jcopy_markers_setup jCMrkSetup +#define jcopy_markers_execute jCMrkExec +#endif /* NEED_SHORT_EXTERNAL_NAMES */ + + +/* + * Codes for supported types of image transformations. + */ + +typedef enum { + JXFORM_NONE, /* no transformation */ + JXFORM_FLIP_H, /* horizontal flip */ + JXFORM_FLIP_V, /* vertical flip */ + JXFORM_TRANSPOSE, /* transpose across UL-to-LR axis */ + JXFORM_TRANSVERSE, /* transpose across UR-to-LL axis */ + JXFORM_ROT_90, /* 90-degree clockwise rotation */ + JXFORM_ROT_180, /* 180-degree rotation */ + JXFORM_ROT_270 /* 270-degree clockwise (or 90 ccw) */ +} JXFORM_CODE; + +/* + * Codes for crop parameters, which can individually be unspecified, + * positive or negative for xoffset or yoffset, + * positive or forced for width or height. + */ + +typedef enum { + JCROP_UNSET, + JCROP_POS, + JCROP_NEG, + JCROP_FORCE +} JCROP_CODE; + +/* + * Transform parameters struct. + * NB: application must not change any elements of this struct after + * calling jtransform_request_workspace. + */ + +typedef struct { + /* Options: set by caller */ + JXFORM_CODE transform; /* image transform operator */ + boolean perfect; /* if TRUE, fail if partial MCUs are requested */ + boolean trim; /* if TRUE, trim partial MCUs as needed */ + boolean force_grayscale; /* if TRUE, convert color image to grayscale */ + boolean crop; /* if TRUE, crop source image */ + + /* Crop parameters: application need not set these unless crop is TRUE. + * These can be filled in by jtransform_parse_crop_spec(). + */ + JDIMENSION crop_width; /* Width of selected region */ + JCROP_CODE crop_width_set; /* (forced disables adjustment) */ + JDIMENSION crop_height; /* Height of selected region */ + JCROP_CODE crop_height_set; /* (forced disables adjustment) */ + JDIMENSION crop_xoffset; /* X offset of selected region */ + JCROP_CODE crop_xoffset_set; /* (negative measures from right edge) */ + JDIMENSION crop_yoffset; /* Y offset of selected region */ + JCROP_CODE crop_yoffset_set; /* (negative measures from bottom edge) */ + + /* Internal workspace: caller should not touch these */ + int num_components; /* # of components in workspace */ + jvirt_barray_ptr * workspace_coef_arrays; /* workspace for transformations */ + JDIMENSION output_width; /* cropped destination dimensions */ + JDIMENSION output_height; + JDIMENSION x_crop_offset; /* destination crop offsets measured in iMCUs */ + JDIMENSION y_crop_offset; + int iMCU_sample_width; /* destination iMCU size */ + int iMCU_sample_height; +} jpeg_transform_info; + + +#if TRANSFORMS_SUPPORTED + +/* Parse a crop specification (written in X11 geometry style) */ +EXTERN(boolean) jtransform_parse_crop_spec + JPP((jpeg_transform_info *info, const char *spec)); +/* Request any required workspace */ +EXTERN(boolean) jtransform_request_workspace + JPP((j_decompress_ptr srcinfo, jpeg_transform_info *info)); +/* Adjust output image parameters */ +EXTERN(jvirt_barray_ptr *) jtransform_adjust_parameters + JPP((j_decompress_ptr srcinfo, j_compress_ptr dstinfo, + jvirt_barray_ptr *src_coef_arrays, + jpeg_transform_info *info)); +/* Execute the actual transformation, if any */ +EXTERN(void) jtransform_execute_transform + JPP((j_decompress_ptr srcinfo, j_compress_ptr dstinfo, + jvirt_barray_ptr *src_coef_arrays, + jpeg_transform_info *info)); +/* Determine whether lossless transformation is perfectly + * possible for a specified image and transformation. + */ +EXTERN(boolean) jtransform_perfect_transform + JPP((JDIMENSION image_width, JDIMENSION image_height, + int MCU_width, int MCU_height, + JXFORM_CODE transform)); + +/* jtransform_execute_transform used to be called + * jtransform_execute_transformation, but some compilers complain about + * routine names that long. This macro is here to avoid breaking any + * old source code that uses the original name... + */ +#define jtransform_execute_transformation jtransform_execute_transform + +#endif /* TRANSFORMS_SUPPORTED */ + + +/* + * Support for copying optional markers from source to destination file. + */ + +typedef enum { + JCOPYOPT_NONE, /* copy no optional markers */ + JCOPYOPT_COMMENTS, /* copy only comment (COM) markers */ + JCOPYOPT_ALL /* copy all optional markers */ +} JCOPY_OPTION; + +#define JCOPYOPT_DEFAULT JCOPYOPT_COMMENTS /* recommended default */ + +/* Setup decompression object to save desired markers in memory */ +EXTERN(void) jcopy_markers_setup + JPP((j_decompress_ptr srcinfo, JCOPY_OPTION option)); +/* Copy markers saved in the given source object to the destination object */ +EXTERN(void) jcopy_markers_execute + JPP((j_decompress_ptr srcinfo, j_compress_ptr dstinfo, + JCOPY_OPTION option)); diff --git a/jpeg/usage.txt b/jpeg/usage.txt new file mode 100644 index 0000000..de9def7 --- /dev/null +++ b/jpeg/usage.txt @@ -0,0 +1,637 @@ +USAGE instructions for the Independent JPEG Group's JPEG software +================================================================= + +This file describes usage of the JPEG conversion programs cjpeg and djpeg, +as well as the utility programs jpegtran, rdjpgcom and wrjpgcom. (See +the other documentation files if you wish to use the JPEG library within +your own programs.) + +If you are on a Unix machine you may prefer to read the Unix-style manual +pages in files cjpeg.1, djpeg.1, jpegtran.1, rdjpgcom.1, wrjpgcom.1. + + +INTRODUCTION + +These programs implement JPEG image encoding, decoding, and transcoding. +JPEG (pronounced "jay-peg") is a standardized compression method for +full-color and gray-scale images. + + +GENERAL USAGE + +We provide two programs, cjpeg to compress an image file into JPEG format, +and djpeg to decompress a JPEG file back into a conventional image format. + +On Unix-like systems, you say: + cjpeg [switches] [imagefile] >jpegfile +or + djpeg [switches] [jpegfile] >imagefile +The programs read the specified input file, or standard input if none is +named. They always write to standard output (with trace/error messages to +standard error). These conventions are handy for piping images between +programs. + +On most non-Unix systems, you say: + cjpeg [switches] imagefile jpegfile +or + djpeg [switches] jpegfile imagefile +i.e., both the input and output files are named on the command line. This +style is a little more foolproof, and it loses no functionality if you don't +have pipes. (You can get this style on Unix too, if you prefer, by defining +TWO_FILE_COMMANDLINE when you compile the programs; see install.txt.) + +You can also say: + cjpeg [switches] -outfile jpegfile imagefile +or + djpeg [switches] -outfile imagefile jpegfile +This syntax works on all systems, so it is useful for scripts. + +The currently supported image file formats are: PPM (PBMPLUS color format), +PGM (PBMPLUS gray-scale format), BMP, Targa, and RLE (Utah Raster Toolkit +format). (RLE is supported only if the URT library is available.) +cjpeg recognizes the input image format automatically, with the exception +of some Targa-format files. You have to tell djpeg which format to generate. + +JPEG files are in the defacto standard JFIF file format. There are other, +less widely used JPEG-based file formats, but we don't support them. + +All switch names may be abbreviated; for example, -grayscale may be written +-gray or -gr. Most of the "basic" switches can be abbreviated to as little as +one letter. Upper and lower case are equivalent (-BMP is the same as -bmp). +British spellings are also accepted (e.g., -greyscale), though for brevity +these are not mentioned below. + + +CJPEG DETAILS + +The basic command line switches for cjpeg are: + + -quality N[,...] Scale quantization tables to adjust image quality. + Quality is 0 (worst) to 100 (best); default is 75. + (See below for more info.) + + -grayscale Create monochrome JPEG file from color input. + Be sure to use this switch when compressing a grayscale + BMP file, because cjpeg isn't bright enough to notice + whether a BMP file uses only shades of gray. By + saying -grayscale, you'll get a smaller JPEG file that + takes less time to process. + + -rgb Create RGB JPEG file. + Using this switch suppresses the conversion from RGB + colorspace input to the default YCbCr JPEG colorspace. + Use this switch in combination with the -block N + switch (see below) for lossless JPEG coding. + + -optimize Perform optimization of entropy encoding parameters. + Without this, default encoding parameters are used. + -optimize usually makes the JPEG file a little smaller, + but cjpeg runs somewhat slower and needs much more + memory. Image quality and speed of decompression are + unaffected by -optimize. + + -progressive Create progressive JPEG file (see below). + + -scale M/N Scale the output image by a factor M/N. Currently + supported scale factors are M/N with all N from 1 to + 16, where M is the destination DCT size, which is 8 by + default (see -block N switch below). + + -targa Input file is Targa format. Targa files that contain + an "identification" field will not be automatically + recognized by cjpeg; for such files you must specify + -targa to make cjpeg treat the input as Targa format. + For most Targa files, you won't need this switch. + +The -quality switch lets you trade off compressed file size against quality of +the reconstructed image: the higher the quality setting, the larger the JPEG +file, and the closer the output image will be to the original input. Normally +you want to use the lowest quality setting (smallest file) that decompresses +into something visually indistinguishable from the original image. For this +purpose the quality setting should be between 50 and 95; the default of 75 is +often about right. If you see defects at -quality 75, then go up 5 or 10 +counts at a time until you are happy with the output image. (The optimal +setting will vary from one image to another.) + +-quality 100 will generate a quantization table of all 1's, minimizing loss +in the quantization step (but there is still information loss in subsampling, +as well as roundoff error). This setting is mainly of interest for +experimental purposes. Quality values above about 95 are NOT recommended for +normal use; the compressed file size goes up dramatically for hardly any gain +in output image quality. + +In the other direction, quality values below 50 will produce very small files +of low image quality. Settings around 5 to 10 might be useful in preparing an +index of a large image library, for example. Try -quality 2 (or so) for some +amusing Cubist effects. (Note: quality values below about 25 generate 2-byte +quantization tables, which are considered optional in the JPEG standard. +cjpeg emits a warning message when you give such a quality value, because some +other JPEG programs may be unable to decode the resulting file. Use -baseline +if you need to ensure compatibility at low quality values.) + +The -quality option has been extended in IJG version 7 for support of separate +quality settings for luminance and chrominance (or in general, for every +provided quantization table slot). This feature is useful for high-quality +applications which cannot accept the damage of color data by coarse +subsampling settings. You can now easily reduce the color data amount more +smoothly with finer control without separate subsampling. The resulting file +is fully compliant with standard JPEG decoders. +Note that the -quality ratings refer to the quantization table slots, and that +the last value is replicated if there are more q-table slots than parameters. +The default q-table slots are 0 for luminance and 1 for chrominance with +default tables as given in the JPEG standard. This is compatible with the old +behaviour in case that only one parameter is given, which is then used for +both luminance and chrominance (slots 0 and 1). More or custom quantization +tables can be set with -qtables and assigned to components with -qslots +parameter (see the "wizard" switches below). +CAUTION: You must explicitly add -sample 1x1 for efficient separate color +quality selection, since the default value used by library is 2x2! + +The -progressive switch creates a "progressive JPEG" file. In this type of +JPEG file, the data is stored in multiple scans of increasing quality. If the +file is being transmitted over a slow communications link, the decoder can use +the first scan to display a low-quality image very quickly, and can then +improve the display with each subsequent scan. The final image is exactly +equivalent to a standard JPEG file of the same quality setting, and the total +file size is about the same --- often a little smaller. + +Switches for advanced users: + + -arithmetic Use arithmetic coding. CAUTION: arithmetic coded JPEG + is not yet widely implemented, so many decoders will + be unable to view an arithmetic coded JPEG file at + all. + + -block N Set DCT block size. All N from 1 to 16 are possible. + Default is 8 (baseline format). + Larger values produce higher compression, + smaller values produce higher quality + (exact DCT stage possible with 1 or 2; with the + default quality of 75 and default Luminance qtable + the DCT+Quantization stage is lossless for N=1). + CAUTION: An implementation of the JPEG SmartScale + extension is required for this feature. SmartScale + enabled JPEG is not yet widely implemented, so many + decoders will be unable to view a SmartScale extended + JPEG file at all. + + -dct int Use integer DCT method (default). + -dct fast Use fast integer DCT (less accurate). + -dct float Use floating-point DCT method. + The float method is very slightly more accurate than + the int method, but is much slower unless your machine + has very fast floating-point hardware. Also note that + results of the floating-point method may vary slightly + across machines, while the integer methods should give + the same results everywhere. The fast integer method + is much less accurate than the other two. + + -nosmooth Don't use high-quality downsampling. + + -restart N Emit a JPEG restart marker every N MCU rows, or every + N MCU blocks if "B" is attached to the number. + -restart 0 (the default) means no restart markers. + + -smooth N Smooth the input image to eliminate dithering noise. + N, ranging from 1 to 100, indicates the strength of + smoothing. 0 (the default) means no smoothing. + + -maxmemory N Set limit for amount of memory to use in processing + large images. Value is in thousands of bytes, or + millions of bytes if "M" is attached to the number. + For example, -max 4m selects 4000000 bytes. If more + space is needed, temporary files will be used. + + -verbose Enable debug printout. More -v's give more printout. + or -debug Also, version information is printed at startup. + +The -restart option inserts extra markers that allow a JPEG decoder to +resynchronize after a transmission error. Without restart markers, any damage +to a compressed file will usually ruin the image from the point of the error +to the end of the image; with restart markers, the damage is usually confined +to the portion of the image up to the next restart marker. Of course, the +restart markers occupy extra space. We recommend -restart 1 for images that +will be transmitted across unreliable networks such as Usenet. + +The -smooth option filters the input to eliminate fine-scale noise. This is +often useful when converting dithered images to JPEG: a moderate smoothing +factor of 10 to 50 gets rid of dithering patterns in the input file, resulting +in a smaller JPEG file and a better-looking image. Too large a smoothing +factor will visibly blur the image, however. + +Switches for wizards: + + -baseline Force baseline-compatible quantization tables to be + generated. This clamps quantization values to 8 bits + even at low quality settings. (This switch is poorly + named, since it does not ensure that the output is + actually baseline JPEG. For example, you can use + -baseline and -progressive together.) + + -qtables file Use the quantization tables given in the specified + text file. + + -qslots N[,...] Select which quantization table to use for each color + component. + + -sample HxV[,...] Set JPEG sampling factors for each color component. + + -scans file Use the scan script given in the specified text file. + +The "wizard" switches are intended for experimentation with JPEG. If you +don't know what you are doing, DON'T USE THEM. These switches are documented +further in the file wizard.txt. + + +DJPEG DETAILS + +The basic command line switches for djpeg are: + + -colors N Reduce image to at most N colors. This reduces the + or -quantize N number of colors used in the output image, so that it + can be displayed on a colormapped display or stored in + a colormapped file format. For example, if you have + an 8-bit display, you'd need to reduce to 256 or fewer + colors. (-colors is the recommended name, -quantize + is provided only for backwards compatibility.) + + -fast Select recommended processing options for fast, low + quality output. (The default options are chosen for + highest quality output.) Currently, this is equivalent + to "-dct fast -nosmooth -onepass -dither ordered". + + -grayscale Force gray-scale output even if JPEG file is color. + Useful for viewing on monochrome displays; also, + djpeg runs noticeably faster in this mode. + + -scale M/N Scale the output image by a factor M/N. Currently + supported scale factors are M/N with all M from 1 to + 16, where N is the source DCT size, which is 8 for + baseline JPEG. If the /N part is omitted, then M + specifies the DCT scaled size to be applied on the + given input. For baseline JPEG this is equivalent to + M/8 scaling, since the source DCT size for baseline + JPEG is 8. Scaling is handy if the image is larger + than your screen; also, djpeg runs much faster when + scaling down the output. + + -bmp Select BMP output format (Windows flavor). 8-bit + colormapped format is emitted if -colors or -grayscale + is specified, or if the JPEG file is gray-scale; + otherwise, 24-bit full-color format is emitted. + + -gif Select GIF output format. Since GIF does not support + more than 256 colors, -colors 256 is assumed (unless + you specify a smaller number of colors). If you + specify -fast, the default number of colors is 216. + + -os2 Select BMP output format (OS/2 1.x flavor). 8-bit + colormapped format is emitted if -colors or -grayscale + is specified, or if the JPEG file is gray-scale; + otherwise, 24-bit full-color format is emitted. + + -pnm Select PBMPLUS (PPM/PGM) output format (this is the + default format). PGM is emitted if the JPEG file is + gray-scale or if -grayscale is specified; otherwise + PPM is emitted. + + -rle Select RLE output format. (Requires URT library.) + + -targa Select Targa output format. Gray-scale format is + emitted if the JPEG file is gray-scale or if + -grayscale is specified; otherwise, colormapped format + is emitted if -colors is specified; otherwise, 24-bit + full-color format is emitted. + +Switches for advanced users: + + -dct int Use integer DCT method (default). + -dct fast Use fast integer DCT (less accurate). + -dct float Use floating-point DCT method. + The float method is very slightly more accurate than + the int method, but is much slower unless your machine + has very fast floating-point hardware. Also note that + results of the floating-point method may vary slightly + across machines, while the integer methods should give + the same results everywhere. The fast integer method + is much less accurate than the other two. + + -dither fs Use Floyd-Steinberg dithering in color quantization. + -dither ordered Use ordered dithering in color quantization. + -dither none Do not use dithering in color quantization. + By default, Floyd-Steinberg dithering is applied when + quantizing colors; this is slow but usually produces + the best results. Ordered dither is a compromise + between speed and quality; no dithering is fast but + usually looks awful. Note that these switches have + no effect unless color quantization is being done. + Ordered dither is only available in -onepass mode. + + -map FILE Quantize to the colors used in the specified image + file. This is useful for producing multiple files + with identical color maps, or for forcing a predefined + set of colors to be used. The FILE must be a GIF + or PPM file. This option overrides -colors and + -onepass. + + -nosmooth Don't use high-quality upsampling. + + -onepass Use one-pass instead of two-pass color quantization. + The one-pass method is faster and needs less memory, + but it produces a lower-quality image. -onepass is + ignored unless you also say -colors N. Also, + the one-pass method is always used for gray-scale + output (the two-pass method is no improvement then). + + -maxmemory N Set limit for amount of memory to use in processing + large images. Value is in thousands of bytes, or + millions of bytes if "M" is attached to the number. + For example, -max 4m selects 4000000 bytes. If more + space is needed, temporary files will be used. + + -verbose Enable debug printout. More -v's give more printout. + or -debug Also, version information is printed at startup. + + +HINTS FOR CJPEG + +Color GIF files are not the ideal input for JPEG; JPEG is really intended for +compressing full-color (24-bit) images. In particular, don't try to convert +cartoons, line drawings, and other images that have only a few distinct +colors. GIF works great on these, JPEG does not. If you want to convert a +GIF to JPEG, you should experiment with cjpeg's -quality and -smooth options +to get a satisfactory conversion. -smooth 10 or so is often helpful. + +Avoid running an image through a series of JPEG compression/decompression +cycles. Image quality loss will accumulate; after ten or so cycles the image +may be noticeably worse than it was after one cycle. It's best to use a +lossless format while manipulating an image, then convert to JPEG format when +you are ready to file the image away. + +The -optimize option to cjpeg is worth using when you are making a "final" +version for posting or archiving. It's also a win when you are using low +quality settings to make very small JPEG files; the percentage improvement +is often a lot more than it is on larger files. (At present, -optimize +mode is always selected when generating progressive JPEG files.) + +GIF input files are no longer supported, to avoid the Unisys LZW patent. +(Conversion of GIF files to JPEG is usually a bad idea anyway.) + + +HINTS FOR DJPEG + +To get a quick preview of an image, use the -grayscale and/or -scale switches. +"-grayscale -scale 1/8" is the fastest case. + +Several options are available that trade off image quality to gain speed. +"-fast" turns on the recommended settings. + +"-dct fast" and/or "-nosmooth" gain speed at a small sacrifice in quality. +When producing a color-quantized image, "-onepass -dither ordered" is fast but +much lower quality than the default behavior. "-dither none" may give +acceptable results in two-pass mode, but is seldom tolerable in one-pass mode. + +If you are fortunate enough to have very fast floating point hardware, +"-dct float" may be even faster than "-dct fast". But on most machines +"-dct float" is slower than "-dct int"; in this case it is not worth using, +because its theoretical accuracy advantage is too small to be significant +in practice. + +Two-pass color quantization requires a good deal of memory; on MS-DOS machines +it may run out of memory even with -maxmemory 0. In that case you can still +decompress, with some loss of image quality, by specifying -onepass for +one-pass quantization. + +To avoid the Unisys LZW patent, djpeg produces uncompressed GIF files. These +are larger than they should be, but are readable by standard GIF decoders. + + +HINTS FOR BOTH PROGRAMS + +If more space is needed than will fit in the available main memory (as +determined by -maxmemory), temporary files will be used. (MS-DOS versions +will try to get extended or expanded memory first.) The temporary files are +often rather large: in typical cases they occupy three bytes per pixel, for +example 3*800*600 = 1.44Mb for an 800x600 image. If you don't have enough +free disk space, leave out -progressive and -optimize (for cjpeg) or specify +-onepass (for djpeg). + +On MS-DOS, the temporary files are created in the directory named by the TMP +or TEMP environment variable, or in the current directory if neither of those +exist. Amiga implementations put the temp files in the directory named by +JPEGTMP:, so be sure to assign JPEGTMP: to a disk partition with adequate free +space. + +The default memory usage limit (-maxmemory) is set when the software is +compiled. If you get an "insufficient memory" error, try specifying a smaller +-maxmemory value, even -maxmemory 0 to use the absolute minimum space. You +may want to recompile with a smaller default value if this happens often. + +On machines that have "environment" variables, you can define the environment +variable JPEGMEM to set the default memory limit. The value is specified as +described for the -maxmemory switch. JPEGMEM overrides the default value +specified when the program was compiled, and itself is overridden by an +explicit -maxmemory switch. + +On MS-DOS machines, -maxmemory is the amount of main (conventional) memory to +use. (Extended or expanded memory is also used if available.) Most +DOS-specific versions of this software do their own memory space estimation +and do not need you to specify -maxmemory. + + +JPEGTRAN + +jpegtran performs various useful transformations of JPEG files. +It can translate the coded representation from one variant of JPEG to another, +for example from baseline JPEG to progressive JPEG or vice versa. It can also +perform some rearrangements of the image data, for example turning an image +from landscape to portrait format by rotation. + +jpegtran works by rearranging the compressed data (DCT coefficients), without +ever fully decoding the image. Therefore, its transformations are lossless: +there is no image degradation at all, which would not be true if you used +djpeg followed by cjpeg to accomplish the same conversion. But by the same +token, jpegtran cannot perform lossy operations such as changing the image +quality. + +jpegtran uses a command line syntax similar to cjpeg or djpeg. +On Unix-like systems, you say: + jpegtran [switches] [inputfile] >outputfile +On most non-Unix systems, you say: + jpegtran [switches] inputfile outputfile +where both the input and output files are JPEG files. + +To specify the coded JPEG representation used in the output file, +jpegtran accepts a subset of the switches recognized by cjpeg: + -optimize Perform optimization of entropy encoding parameters. + -progressive Create progressive JPEG file. + -arithmetic Use arithmetic coding. + -restart N Emit a JPEG restart marker every N MCU rows, or every + N MCU blocks if "B" is attached to the number. + -scans file Use the scan script given in the specified text file. +See the previous discussion of cjpeg for more details about these switches. +If you specify none of these switches, you get a plain baseline-JPEG output +file. The quality setting and so forth are determined by the input file. + +The image can be losslessly transformed by giving one of these switches: + -flip horizontal Mirror image horizontally (left-right). + -flip vertical Mirror image vertically (top-bottom). + -rotate 90 Rotate image 90 degrees clockwise. + -rotate 180 Rotate image 180 degrees. + -rotate 270 Rotate image 270 degrees clockwise (or 90 ccw). + -transpose Transpose image (across UL-to-LR axis). + -transverse Transverse transpose (across UR-to-LL axis). + +The transpose transformation has no restrictions regarding image dimensions. +The other transformations operate rather oddly if the image dimensions are not +a multiple of the iMCU size (usually 8 or 16 pixels), because they can only +transform complete blocks of DCT coefficient data in the desired way. + +jpegtran's default behavior when transforming an odd-size image is designed +to preserve exact reversibility and mathematical consistency of the +transformation set. As stated, transpose is able to flip the entire image +area. Horizontal mirroring leaves any partial iMCU column at the right edge +untouched, but is able to flip all rows of the image. Similarly, vertical +mirroring leaves any partial iMCU row at the bottom edge untouched, but is +able to flip all columns. The other transforms can be built up as sequences +of transpose and flip operations; for consistency, their actions on edge +pixels are defined to be the same as the end result of the corresponding +transpose-and-flip sequence. + +For practical use, you may prefer to discard any untransformable edge pixels +rather than having a strange-looking strip along the right and/or bottom edges +of a transformed image. To do this, add the -trim switch: + -trim Drop non-transformable edge blocks. +Obviously, a transformation with -trim is not reversible, so strictly speaking +jpegtran with this switch is not lossless. Also, the expected mathematical +equivalences between the transformations no longer hold. For example, +"-rot 270 -trim" trims only the bottom edge, but "-rot 90 -trim" followed by +"-rot 180 -trim" trims both edges. + +If you are only interested in perfect transformation, add the -perfect switch: + -perfect Fails with an error if the transformation is not + perfect. +For example you may want to do + jpegtran -rot 90 -perfect foo.jpg || djpeg foo.jpg | pnmflip -r90 | cjpeg +to do a perfect rotation if available or an approximated one if not. + +We also offer a lossless-crop option, which discards data outside a given +image region but losslessly preserves what is inside. Like the rotate and +flip transforms, lossless crop is restricted by the current JPEG format: the +upper left corner of the selected region must fall on an iMCU boundary. If +this does not hold for the given crop parameters, we silently move the upper +left corner up and/or left to make it so, simultaneously increasing the region +dimensions to keep the lower right crop corner unchanged. (Thus, the output +image covers at least the requested region, but may cover more.) + +The image can be losslessly cropped by giving the switch: + -crop WxH+X+Y Crop to a rectangular subarea of width W, height H + starting at point X,Y. + +Other not-strictly-lossless transformation switches are: + + -grayscale Force grayscale output. +This option discards the chrominance channels if the input image is YCbCr +(ie, a standard color JPEG), resulting in a grayscale JPEG file. The +luminance channel is preserved exactly, so this is a better method of reducing +to grayscale than decompression, conversion, and recompression. This switch +is particularly handy for fixing a monochrome picture that was mistakenly +encoded as a color JPEG. (In such a case, the space savings from getting rid +of the near-empty chroma channels won't be large; but the decoding time for +a grayscale JPEG is substantially less than that for a color JPEG.) + + -scale M/N Scale the output image by a factor M/N. +Currently supported scale factors are M/N with all M from 1 to 16, where N is +the source DCT size, which is 8 for baseline JPEG. If the /N part is omitted, +then M specifies the DCT scaled size to be applied on the given input. For +baseline JPEG this is equivalent to M/8 scaling, since the source DCT size +for baseline JPEG is 8. CAUTION: An implementation of the JPEG SmartScale +extension is required for this feature. SmartScale enabled JPEG is not yet +widely implemented, so many decoders will be unable to view a SmartScale +extended JPEG file at all. + +jpegtran also recognizes these switches that control what to do with "extra" +markers, such as comment blocks: + -copy none Copy no extra markers from source file. This setting + suppresses all comments and other excess baggage + present in the source file. + -copy comments Copy only comment markers. This setting copies + comments from the source file, but discards + any other inessential (for image display) data. + -copy all Copy all extra markers. This setting preserves + miscellaneous markers found in the source file, such + as JFIF thumbnails, Exif data, and Photoshop settings. + In some files these extra markers can be sizable. +The default behavior is -copy comments. (Note: in IJG releases v6 and v6a, +jpegtran always did the equivalent of -copy none.) + +Additional switches recognized by jpegtran are: + -outfile filename + -maxmemory N + -verbose + -debug +These work the same as in cjpeg or djpeg. + + +THE COMMENT UTILITIES + +The JPEG standard allows "comment" (COM) blocks to occur within a JPEG file. +Although the standard doesn't actually define what COM blocks are for, they +are widely used to hold user-supplied text strings. This lets you add +annotations, titles, index terms, etc to your JPEG files, and later retrieve +them as text. COM blocks do not interfere with the image stored in the JPEG +file. The maximum size of a COM block is 64K, but you can have as many of +them as you like in one JPEG file. + +We provide two utility programs to display COM block contents and add COM +blocks to a JPEG file. + +rdjpgcom searches a JPEG file and prints the contents of any COM blocks on +standard output. The command line syntax is + rdjpgcom [-raw] [-verbose] [inputfilename] +The switch "-raw" (or just "-r") causes rdjpgcom to also output non-printable +characters in comments, which are normally escaped for security reasons. +The switch "-verbose" (or just "-v") causes rdjpgcom to also display the JPEG +image dimensions. If you omit the input file name from the command line, +the JPEG file is read from standard input. (This may not work on some +operating systems, if binary data can't be read from stdin.) + +wrjpgcom adds a COM block, containing text you provide, to a JPEG file. +Ordinarily, the COM block is added after any existing COM blocks, but you +can delete the old COM blocks if you wish. wrjpgcom produces a new JPEG +file; it does not modify the input file. DO NOT try to overwrite the input +file by directing wrjpgcom's output back into it; on most systems this will +just destroy your file. + +The command line syntax for wrjpgcom is similar to cjpeg's. On Unix-like +systems, it is + wrjpgcom [switches] [inputfilename] +The output file is written to standard output. The input file comes from +the named file, or from standard input if no input file is named. + +On most non-Unix systems, the syntax is + wrjpgcom [switches] inputfilename outputfilename +where both input and output file names must be given explicitly. + +wrjpgcom understands three switches: + -replace Delete any existing COM blocks from the file. + -comment "Comment text" Supply new COM text on command line. + -cfile name Read text for new COM block from named file. +(Switch names can be abbreviated.) If you have only one line of comment text +to add, you can provide it on the command line with -comment. The comment +text must be surrounded with quotes so that it is treated as a single +argument. Longer comments can be read from a text file. + +If you give neither -comment nor -cfile, then wrjpgcom will read the comment +text from standard input. (In this case an input image file name MUST be +supplied, so that the source JPEG file comes from somewhere else.) You can +enter multiple lines, up to 64KB worth. Type an end-of-file indicator +(usually control-D or control-Z) to terminate the comment text entry. + +wrjpgcom will not add a COM block if the provided comment string is empty. +Therefore -replace -comment "" can be used to delete all COM blocks from a +file. + +These utility programs do not depend on the IJG JPEG library. In +particular, the source code for rdjpgcom is intended as an illustration of +the minimum amount of code required to parse a JPEG file header correctly. diff --git a/jpeg/wizard.txt b/jpeg/wizard.txt new file mode 100644 index 0000000..54170b2 --- /dev/null +++ b/jpeg/wizard.txt @@ -0,0 +1,211 @@ +Advanced usage instructions for the Independent JPEG Group's JPEG software +========================================================================== + +This file describes cjpeg's "switches for wizards". + +The "wizard" switches are intended for experimentation with JPEG by persons +who are reasonably knowledgeable about the JPEG standard. If you don't know +what you are doing, DON'T USE THESE SWITCHES. You'll likely produce files +with worse image quality and/or poorer compression than you'd get from the +default settings. Furthermore, these switches must be used with caution +when making files intended for general use, because not all JPEG decoders +will support unusual JPEG parameter settings. + + +Quantization Table Adjustment +----------------------------- + +Ordinarily, cjpeg starts with a default set of tables (the same ones given +as examples in the JPEG standard) and scales them up or down according to +the -quality setting. The details of the scaling algorithm can be found in +jcparam.c. At very low quality settings, some quantization table entries +can get scaled up to values exceeding 255. Although 2-byte quantization +values are supported by the IJG software, this feature is not in baseline +JPEG and is not supported by all implementations. If you need to ensure +wide compatibility of low-quality files, you can constrain the scaled +quantization values to no more than 255 by giving the -baseline switch. +Note that use of -baseline will result in poorer quality for the same file +size, since more bits than necessary are expended on higher AC coefficients. + +You can substitute a different set of quantization values by using the +-qtables switch: + + -qtables file Use the quantization tables given in the named file. + +The specified file should be a text file containing decimal quantization +values. The file should contain one to four tables, each of 64 elements. +The tables are implicitly numbered 0,1,etc. in order of appearance. Table +entries appear in normal array order (NOT in the zigzag order in which they +will be stored in the JPEG file). + +Quantization table files are free format, in that arbitrary whitespace can +appear between numbers. Also, comments can be included: a comment starts +with '#' and extends to the end of the line. Here is an example file that +duplicates the default quantization tables: + + # Quantization tables given in JPEG spec, section K.1 + + # This is table 0 (the luminance table): + 16 11 10 16 24 40 51 61 + 12 12 14 19 26 58 60 55 + 14 13 16 24 40 57 69 56 + 14 17 22 29 51 87 80 62 + 18 22 37 56 68 109 103 77 + 24 35 55 64 81 104 113 92 + 49 64 78 87 103 121 120 101 + 72 92 95 98 112 100 103 99 + + # This is table 1 (the chrominance table): + 17 18 24 47 99 99 99 99 + 18 21 26 66 99 99 99 99 + 24 26 56 99 99 99 99 99 + 47 66 99 99 99 99 99 99 + 99 99 99 99 99 99 99 99 + 99 99 99 99 99 99 99 99 + 99 99 99 99 99 99 99 99 + 99 99 99 99 99 99 99 99 + +If the -qtables switch is used without -quality, then the specified tables +are used exactly as-is. If both -qtables and -quality are used, then the +tables taken from the file are scaled in the same fashion that the default +tables would be scaled for that quality setting. If -baseline appears, then +the quantization values are constrained to the range 1-255. + +By default, cjpeg will use quantization table 0 for luminance components and +table 1 for chrominance components. To override this choice, use the -qslots +switch: + + -qslots N[,...] Select which quantization table to use for + each color component. + +The -qslots switch specifies a quantization table number for each color +component, in the order in which the components appear in the JPEG SOF marker. +For example, to create a separate table for each of Y,Cb,Cr, you could +provide a -qtables file that defines three quantization tables and say +"-qslots 0,1,2". If -qslots gives fewer table numbers than there are color +components, then the last table number is repeated as necessary. + + +Sampling Factor Adjustment +-------------------------- + +By default, cjpeg uses 2:1 horizontal and vertical downsampling when +compressing YCbCr data, and no downsampling for all other color spaces. +You can override this default with the -sample switch: + + -sample HxV[,...] Set JPEG sampling factors for each color + component. + +The -sample switch specifies the JPEG sampling factors for each color +component, in the order in which they appear in the JPEG SOF marker. +If you specify fewer HxV pairs than there are components, the remaining +components are set to 1x1 sampling. For example, the default YCbCr setting +is equivalent to "-sample 2x2,1x1,1x1", which can be abbreviated to +"-sample 2x2". + +There are still some JPEG decoders in existence that support only 2x1 +sampling (also called 4:2:2 sampling). Compatibility with such decoders can +be achieved by specifying "-sample 2x1". This is not recommended unless +really necessary, since it increases file size and encoding/decoding time +with very little quality gain. + + +Multiple Scan / Progression Control +----------------------------------- + +By default, cjpeg emits a single-scan sequential JPEG file. The +-progressive switch generates a progressive JPEG file using a default series +of progression parameters. You can create multiple-scan sequential JPEG +files or progressive JPEG files with custom progression parameters by using +the -scans switch: + + -scans file Use the scan sequence given in the named file. + +The specified file should be a text file containing a "scan script". +The script specifies the contents and ordering of the scans to be emitted. +Each entry in the script defines one scan. A scan definition specifies +the components to be included in the scan, and for progressive JPEG it also +specifies the progression parameters Ss,Se,Ah,Al for the scan. Scan +definitions are separated by semicolons (';'). A semicolon after the last +scan definition is optional. + +Each scan definition contains one to four component indexes, optionally +followed by a colon (':') and the four progressive-JPEG parameters. The +component indexes denote which color component(s) are to be transmitted in +the scan. Components are numbered in the order in which they appear in the +JPEG SOF marker, with the first component being numbered 0. (Note that these +indexes are not the "component ID" codes assigned to the components, just +positional indexes.) + +The progression parameters for each scan are: + Ss Zigzag index of first coefficient included in scan + Se Zigzag index of last coefficient included in scan + Ah Zero for first scan of a coefficient, else Al of prior scan + Al Successive approximation low bit position for scan +If the progression parameters are omitted, the values 0,63,0,0 are used, +producing a sequential JPEG file. cjpeg automatically determines whether +the script represents a progressive or sequential file, by observing whether +Ss and Se values other than 0 and 63 appear. (The -progressive switch is +not needed to specify this; in fact, it is ignored when -scans appears.) +The scan script must meet the JPEG restrictions on progression sequences. +(cjpeg checks that the spec's requirements are obeyed.) + +Scan script files are free format, in that arbitrary whitespace can appear +between numbers and around punctuation. Also, comments can be included: a +comment starts with '#' and extends to the end of the line. For additional +legibility, commas or dashes can be placed between values. (Actually, any +single punctuation character other than ':' or ';' can be inserted.) For +example, the following two scan definitions are equivalent: + 0 1 2: 0 63 0 0; + 0,1,2 : 0-63, 0,0 ; + +Here is an example of a scan script that generates a partially interleaved +sequential JPEG file: + + 0; # Y only in first scan + 1 2; # Cb and Cr in second scan + +Here is an example of a progressive scan script using only spectral selection +(no successive approximation): + + # Interleaved DC scan for Y,Cb,Cr: + 0,1,2: 0-0, 0, 0 ; + # AC scans: + 0: 1-2, 0, 0 ; # First two Y AC coefficients + 0: 3-5, 0, 0 ; # Three more + 1: 1-63, 0, 0 ; # All AC coefficients for Cb + 2: 1-63, 0, 0 ; # All AC coefficients for Cr + 0: 6-9, 0, 0 ; # More Y coefficients + 0: 10-63, 0, 0 ; # Remaining Y coefficients + +Here is an example of a successive-approximation script. This is equivalent +to the default script used by "cjpeg -progressive" for YCbCr images: + + # Initial DC scan for Y,Cb,Cr (lowest bit not sent) + 0,1,2: 0-0, 0, 1 ; + # First AC scan: send first 5 Y AC coefficients, minus 2 lowest bits: + 0: 1-5, 0, 2 ; + # Send all Cr,Cb AC coefficients, minus lowest bit: + # (chroma data is usually too small to be worth subdividing further; + # but note we send Cr first since eye is least sensitive to Cb) + 2: 1-63, 0, 1 ; + 1: 1-63, 0, 1 ; + # Send remaining Y AC coefficients, minus 2 lowest bits: + 0: 6-63, 0, 2 ; + # Send next-to-lowest bit of all Y AC coefficients: + 0: 1-63, 2, 1 ; + # At this point we've sent all but the lowest bit of all coefficients. + # Send lowest bit of DC coefficients + 0,1,2: 0-0, 1, 0 ; + # Send lowest bit of AC coefficients + 2: 1-63, 1, 0 ; + 1: 1-63, 1, 0 ; + # Y AC lowest bit scan is last; it's usually the largest scan + 0: 1-63, 1, 0 ; + +It may be worth pointing out that this script is tuned for quality settings +of around 50 to 75. For lower quality settings, you'd probably want to use +a script with fewer stages of successive approximation (otherwise the +initial scans will be really bad). For higher quality settings, you might +want to use more stages of successive approximation (so that the initial +scans are not too large). diff --git a/jpeg/wrbmp.c b/jpeg/wrbmp.c new file mode 100644 index 0000000..3283b0f --- /dev/null +++ b/jpeg/wrbmp.c @@ -0,0 +1,442 @@ +/* + * wrbmp.c + * + * Copyright (C) 1994-1996, Thomas G. Lane. + * This file is part of the Independent JPEG Group's software. + * For conditions of distribution and use, see the accompanying README file. + * + * This file contains routines to write output images in Microsoft "BMP" + * format (MS Windows 3.x and OS/2 1.x flavors). + * Either 8-bit colormapped or 24-bit full-color format can be written. + * No compression is supported. + * + * These routines may need modification for non-Unix environments or + * specialized applications. As they stand, they assume output to + * an ordinary stdio stream. + * + * This code contributed by James Arthur Boucher. + */ + +#include "cdjpeg.h" /* Common decls for cjpeg/djpeg applications */ + +#ifdef BMP_SUPPORTED + + +/* + * To support 12-bit JPEG data, we'd have to scale output down to 8 bits. + * This is not yet implemented. + */ + +#if BITS_IN_JSAMPLE != 8 + Sorry, this code only copes with 8-bit JSAMPLEs. /* deliberate syntax err */ +#endif + +/* + * Since BMP stores scanlines bottom-to-top, we have to invert the image + * from JPEG's top-to-bottom order. To do this, we save the outgoing data + * in a virtual array during put_pixel_row calls, then actually emit the + * BMP file during finish_output. The virtual array contains one JSAMPLE per + * pixel if the output is grayscale or colormapped, three if it is full color. + */ + +/* Private version of data destination object */ + +typedef struct { + struct djpeg_dest_struct pub; /* public fields */ + + boolean is_os2; /* saves the OS2 format request flag */ + + jvirt_sarray_ptr whole_image; /* needed to reverse row order */ + JDIMENSION data_width; /* JSAMPLEs per row */ + JDIMENSION row_width; /* physical width of one row in the BMP file */ + int pad_bytes; /* number of padding bytes needed per row */ + JDIMENSION cur_output_row; /* next row# to write to virtual array */ +} bmp_dest_struct; + +typedef bmp_dest_struct * bmp_dest_ptr; + + +/* Forward declarations */ +LOCAL(void) write_colormap + JPP((j_decompress_ptr cinfo, bmp_dest_ptr dest, + int map_colors, int map_entry_size)); + + +/* + * Write some pixel data. + * In this module rows_supplied will always be 1. + */ + +METHODDEF(void) +put_pixel_rows (j_decompress_ptr cinfo, djpeg_dest_ptr dinfo, + JDIMENSION rows_supplied) +/* This version is for writing 24-bit pixels */ +{ + bmp_dest_ptr dest = (bmp_dest_ptr) dinfo; + JSAMPARRAY image_ptr; + register JSAMPROW inptr, outptr; + register JDIMENSION col; + int pad; + + /* Access next row in virtual array */ + image_ptr = (*cinfo->mem->access_virt_sarray) + ((j_common_ptr) cinfo, dest->whole_image, + dest->cur_output_row, (JDIMENSION) 1, TRUE); + dest->cur_output_row++; + + /* Transfer data. Note destination values must be in BGR order + * (even though Microsoft's own documents say the opposite). + */ + inptr = dest->pub.buffer[0]; + outptr = image_ptr[0]; + for (col = cinfo->output_width; col > 0; col--) { + outptr[2] = *inptr++; /* can omit GETJSAMPLE() safely */ + outptr[1] = *inptr++; + outptr[0] = *inptr++; + outptr += 3; + } + + /* Zero out the pad bytes. */ + pad = dest->pad_bytes; + while (--pad >= 0) + *outptr++ = 0; +} + +METHODDEF(void) +put_gray_rows (j_decompress_ptr cinfo, djpeg_dest_ptr dinfo, + JDIMENSION rows_supplied) +/* This version is for grayscale OR quantized color output */ +{ + bmp_dest_ptr dest = (bmp_dest_ptr) dinfo; + JSAMPARRAY image_ptr; + register JSAMPROW inptr, outptr; + register JDIMENSION col; + int pad; + + /* Access next row in virtual array */ + image_ptr = (*cinfo->mem->access_virt_sarray) + ((j_common_ptr) cinfo, dest->whole_image, + dest->cur_output_row, (JDIMENSION) 1, TRUE); + dest->cur_output_row++; + + /* Transfer data. */ + inptr = dest->pub.buffer[0]; + outptr = image_ptr[0]; + for (col = cinfo->output_width; col > 0; col--) { + *outptr++ = *inptr++; /* can omit GETJSAMPLE() safely */ + } + + /* Zero out the pad bytes. */ + pad = dest->pad_bytes; + while (--pad >= 0) + *outptr++ = 0; +} + + +/* + * Startup: normally writes the file header. + * In this module we may as well postpone everything until finish_output. + */ + +METHODDEF(void) +start_output_bmp (j_decompress_ptr cinfo, djpeg_dest_ptr dinfo) +{ + /* no work here */ +} + + +/* + * Finish up at the end of the file. + * + * Here is where we really output the BMP file. + * + * First, routines to write the Windows and OS/2 variants of the file header. + */ + +LOCAL(void) +write_bmp_header (j_decompress_ptr cinfo, bmp_dest_ptr dest) +/* Write a Windows-style BMP file header, including colormap if needed */ +{ + char bmpfileheader[14]; + char bmpinfoheader[40]; +#define PUT_2B(array,offset,value) \ + (array[offset] = (char) ((value) & 0xFF), \ + array[offset+1] = (char) (((value) >> 8) & 0xFF)) +#define PUT_4B(array,offset,value) \ + (array[offset] = (char) ((value) & 0xFF), \ + array[offset+1] = (char) (((value) >> 8) & 0xFF), \ + array[offset+2] = (char) (((value) >> 16) & 0xFF), \ + array[offset+3] = (char) (((value) >> 24) & 0xFF)) + INT32 headersize, bfSize; + int bits_per_pixel, cmap_entries; + + /* Compute colormap size and total file size */ + if (cinfo->out_color_space == JCS_RGB) { + if (cinfo->quantize_colors) { + /* Colormapped RGB */ + bits_per_pixel = 8; + cmap_entries = 256; + } else { + /* Unquantized, full color RGB */ + bits_per_pixel = 24; + cmap_entries = 0; + } + } else { + /* Grayscale output. We need to fake a 256-entry colormap. */ + bits_per_pixel = 8; + cmap_entries = 256; + } + /* File size */ + headersize = 14 + 40 + cmap_entries * 4; /* Header and colormap */ + bfSize = headersize + (INT32) dest->row_width * (INT32) cinfo->output_height; + + /* Set unused fields of header to 0 */ + MEMZERO(bmpfileheader, SIZEOF(bmpfileheader)); + MEMZERO(bmpinfoheader, SIZEOF(bmpinfoheader)); + + /* Fill the file header */ + bmpfileheader[0] = 0x42; /* first 2 bytes are ASCII 'B', 'M' */ + bmpfileheader[1] = 0x4D; + PUT_4B(bmpfileheader, 2, bfSize); /* bfSize */ + /* we leave bfReserved1 & bfReserved2 = 0 */ + PUT_4B(bmpfileheader, 10, headersize); /* bfOffBits */ + + /* Fill the info header (Microsoft calls this a BITMAPINFOHEADER) */ + PUT_2B(bmpinfoheader, 0, 40); /* biSize */ + PUT_4B(bmpinfoheader, 4, cinfo->output_width); /* biWidth */ + PUT_4B(bmpinfoheader, 8, cinfo->output_height); /* biHeight */ + PUT_2B(bmpinfoheader, 12, 1); /* biPlanes - must be 1 */ + PUT_2B(bmpinfoheader, 14, bits_per_pixel); /* biBitCount */ + /* we leave biCompression = 0, for none */ + /* we leave biSizeImage = 0; this is correct for uncompressed data */ + if (cinfo->density_unit == 2) { /* if have density in dots/cm, then */ + PUT_4B(bmpinfoheader, 24, (INT32) (cinfo->X_density*100)); /* XPels/M */ + PUT_4B(bmpinfoheader, 28, (INT32) (cinfo->Y_density*100)); /* XPels/M */ + } + PUT_2B(bmpinfoheader, 32, cmap_entries); /* biClrUsed */ + /* we leave biClrImportant = 0 */ + + if (JFWRITE(dest->pub.output_file, bmpfileheader, 14) != (size_t) 14) + ERREXIT(cinfo, JERR_FILE_WRITE); + if (JFWRITE(dest->pub.output_file, bmpinfoheader, 40) != (size_t) 40) + ERREXIT(cinfo, JERR_FILE_WRITE); + + if (cmap_entries > 0) + write_colormap(cinfo, dest, cmap_entries, 4); +} + + +LOCAL(void) +write_os2_header (j_decompress_ptr cinfo, bmp_dest_ptr dest) +/* Write an OS2-style BMP file header, including colormap if needed */ +{ + char bmpfileheader[14]; + char bmpcoreheader[12]; + INT32 headersize, bfSize; + int bits_per_pixel, cmap_entries; + + /* Compute colormap size and total file size */ + if (cinfo->out_color_space == JCS_RGB) { + if (cinfo->quantize_colors) { + /* Colormapped RGB */ + bits_per_pixel = 8; + cmap_entries = 256; + } else { + /* Unquantized, full color RGB */ + bits_per_pixel = 24; + cmap_entries = 0; + } + } else { + /* Grayscale output. We need to fake a 256-entry colormap. */ + bits_per_pixel = 8; + cmap_entries = 256; + } + /* File size */ + headersize = 14 + 12 + cmap_entries * 3; /* Header and colormap */ + bfSize = headersize + (INT32) dest->row_width * (INT32) cinfo->output_height; + + /* Set unused fields of header to 0 */ + MEMZERO(bmpfileheader, SIZEOF(bmpfileheader)); + MEMZERO(bmpcoreheader, SIZEOF(bmpcoreheader)); + + /* Fill the file header */ + bmpfileheader[0] = 0x42; /* first 2 bytes are ASCII 'B', 'M' */ + bmpfileheader[1] = 0x4D; + PUT_4B(bmpfileheader, 2, bfSize); /* bfSize */ + /* we leave bfReserved1 & bfReserved2 = 0 */ + PUT_4B(bmpfileheader, 10, headersize); /* bfOffBits */ + + /* Fill the info header (Microsoft calls this a BITMAPCOREHEADER) */ + PUT_2B(bmpcoreheader, 0, 12); /* bcSize */ + PUT_2B(bmpcoreheader, 4, cinfo->output_width); /* bcWidth */ + PUT_2B(bmpcoreheader, 6, cinfo->output_height); /* bcHeight */ + PUT_2B(bmpcoreheader, 8, 1); /* bcPlanes - must be 1 */ + PUT_2B(bmpcoreheader, 10, bits_per_pixel); /* bcBitCount */ + + if (JFWRITE(dest->pub.output_file, bmpfileheader, 14) != (size_t) 14) + ERREXIT(cinfo, JERR_FILE_WRITE); + if (JFWRITE(dest->pub.output_file, bmpcoreheader, 12) != (size_t) 12) + ERREXIT(cinfo, JERR_FILE_WRITE); + + if (cmap_entries > 0) + write_colormap(cinfo, dest, cmap_entries, 3); +} + + +/* + * Write the colormap. + * Windows uses BGR0 map entries; OS/2 uses BGR entries. + */ + +LOCAL(void) +write_colormap (j_decompress_ptr cinfo, bmp_dest_ptr dest, + int map_colors, int map_entry_size) +{ + JSAMPARRAY colormap = cinfo->colormap; + int num_colors = cinfo->actual_number_of_colors; + FILE * outfile = dest->pub.output_file; + int i; + + if (colormap != NULL) { + if (cinfo->out_color_components == 3) { + /* Normal case with RGB colormap */ + for (i = 0; i < num_colors; i++) { + putc(GETJSAMPLE(colormap[2][i]), outfile); + putc(GETJSAMPLE(colormap[1][i]), outfile); + putc(GETJSAMPLE(colormap[0][i]), outfile); + if (map_entry_size == 4) + putc(0, outfile); + } + } else { + /* Grayscale colormap (only happens with grayscale quantization) */ + for (i = 0; i < num_colors; i++) { + putc(GETJSAMPLE(colormap[0][i]), outfile); + putc(GETJSAMPLE(colormap[0][i]), outfile); + putc(GETJSAMPLE(colormap[0][i]), outfile); + if (map_entry_size == 4) + putc(0, outfile); + } + } + } else { + /* If no colormap, must be grayscale data. Generate a linear "map". */ + for (i = 0; i < 256; i++) { + putc(i, outfile); + putc(i, outfile); + putc(i, outfile); + if (map_entry_size == 4) + putc(0, outfile); + } + } + /* Pad colormap with zeros to ensure specified number of colormap entries */ + if (i > map_colors) + ERREXIT1(cinfo, JERR_TOO_MANY_COLORS, i); + for (; i < map_colors; i++) { + putc(0, outfile); + putc(0, outfile); + putc(0, outfile); + if (map_entry_size == 4) + putc(0, outfile); + } +} + + +METHODDEF(void) +finish_output_bmp (j_decompress_ptr cinfo, djpeg_dest_ptr dinfo) +{ + bmp_dest_ptr dest = (bmp_dest_ptr) dinfo; + register FILE * outfile = dest->pub.output_file; + JSAMPARRAY image_ptr; + register JSAMPROW data_ptr; + JDIMENSION row; + register JDIMENSION col; + cd_progress_ptr progress = (cd_progress_ptr) cinfo->progress; + + /* Write the header and colormap */ + if (dest->is_os2) + write_os2_header(cinfo, dest); + else + write_bmp_header(cinfo, dest); + + /* Write the file body from our virtual array */ + for (row = cinfo->output_height; row > 0; row--) { + if (progress != NULL) { + progress->pub.pass_counter = (long) (cinfo->output_height - row); + progress->pub.pass_limit = (long) cinfo->output_height; + (*progress->pub.progress_monitor) ((j_common_ptr) cinfo); + } + image_ptr = (*cinfo->mem->access_virt_sarray) + ((j_common_ptr) cinfo, dest->whole_image, row-1, (JDIMENSION) 1, FALSE); + data_ptr = image_ptr[0]; + for (col = dest->row_width; col > 0; col--) { + putc(GETJSAMPLE(*data_ptr), outfile); + data_ptr++; + } + } + if (progress != NULL) + progress->completed_extra_passes++; + + /* Make sure we wrote the output file OK */ + fflush(outfile); + if (ferror(outfile)) + ERREXIT(cinfo, JERR_FILE_WRITE); +} + + +/* + * The module selection routine for BMP format output. + */ + +GLOBAL(djpeg_dest_ptr) +jinit_write_bmp (j_decompress_ptr cinfo, boolean is_os2) +{ + bmp_dest_ptr dest; + JDIMENSION row_width; + + /* Create module interface object, fill in method pointers */ + dest = (bmp_dest_ptr) + (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, + SIZEOF(bmp_dest_struct)); + dest->pub.start_output = start_output_bmp; + dest->pub.finish_output = finish_output_bmp; + dest->is_os2 = is_os2; + + if (cinfo->out_color_space == JCS_GRAYSCALE) { + dest->pub.put_pixel_rows = put_gray_rows; + } else if (cinfo->out_color_space == JCS_RGB) { + if (cinfo->quantize_colors) + dest->pub.put_pixel_rows = put_gray_rows; + else + dest->pub.put_pixel_rows = put_pixel_rows; + } else { + ERREXIT(cinfo, JERR_BMP_COLORSPACE); + } + + /* Calculate output image dimensions so we can allocate space */ + jpeg_calc_output_dimensions(cinfo); + + /* Determine width of rows in the BMP file (padded to 4-byte boundary). */ + row_width = cinfo->output_width * cinfo->output_components; + dest->data_width = row_width; + while ((row_width & 3) != 0) row_width++; + dest->row_width = row_width; + dest->pad_bytes = (int) (row_width - dest->data_width); + + /* Allocate space for inversion array, prepare for write pass */ + dest->whole_image = (*cinfo->mem->request_virt_sarray) + ((j_common_ptr) cinfo, JPOOL_IMAGE, FALSE, + row_width, cinfo->output_height, (JDIMENSION) 1); + dest->cur_output_row = 0; + if (cinfo->progress != NULL) { + cd_progress_ptr progress = (cd_progress_ptr) cinfo->progress; + progress->total_extra_passes++; /* count file input as separate pass */ + } + + /* Create decompressor output buffer. */ + dest->pub.buffer = (*cinfo->mem->alloc_sarray) + ((j_common_ptr) cinfo, JPOOL_IMAGE, row_width, (JDIMENSION) 1); + dest->pub.buffer_height = 1; + + return (djpeg_dest_ptr) dest; +} + +#endif /* BMP_SUPPORTED */ diff --git a/jpeg/wrgif.c b/jpeg/wrgif.c new file mode 100644 index 0000000..5fe8328 --- /dev/null +++ b/jpeg/wrgif.c @@ -0,0 +1,399 @@ +/* + * wrgif.c + * + * Copyright (C) 1991-1997, Thomas G. Lane. + * This file is part of the Independent JPEG Group's software. + * For conditions of distribution and use, see the accompanying README file. + * + * This file contains routines to write output images in GIF format. + * + ************************************************************************** + * NOTE: to avoid entanglements with Unisys' patent on LZW compression, * + * this code has been modified to output "uncompressed GIF" files. * + * There is no trace of the LZW algorithm in this file. * + ************************************************************************** + * + * These routines may need modification for non-Unix environments or + * specialized applications. As they stand, they assume output to + * an ordinary stdio stream. + */ + +/* + * This code is loosely based on ppmtogif from the PBMPLUS distribution + * of Feb. 1991. That file contains the following copyright notice: + * Based on GIFENCODE by David Rowley . + * Lempel-Ziv compression based on "compress" by Spencer W. Thomas et al. + * Copyright (C) 1989 by Jef Poskanzer. + * Permission to use, copy, modify, and distribute this software and its + * documentation for any purpose and without fee is hereby granted, provided + * that the above copyright notice appear in all copies and that both that + * copyright notice and this permission notice appear in supporting + * documentation. This software is provided "as is" without express or + * implied warranty. + * + * We are also required to state that + * "The Graphics Interchange Format(c) is the Copyright property of + * CompuServe Incorporated. GIF(sm) is a Service Mark property of + * CompuServe Incorporated." + */ + +#include "cdjpeg.h" /* Common decls for cjpeg/djpeg applications */ + +#ifdef GIF_SUPPORTED + + +/* Private version of data destination object */ + +typedef struct { + struct djpeg_dest_struct pub; /* public fields */ + + j_decompress_ptr cinfo; /* back link saves passing separate parm */ + + /* State for packing variable-width codes into a bitstream */ + int n_bits; /* current number of bits/code */ + int maxcode; /* maximum code, given n_bits */ + INT32 cur_accum; /* holds bits not yet output */ + int cur_bits; /* # of bits in cur_accum */ + + /* State for GIF code assignment */ + int ClearCode; /* clear code (doesn't change) */ + int EOFCode; /* EOF code (ditto) */ + int code_counter; /* counts output symbols */ + + /* GIF data packet construction buffer */ + int bytesinpkt; /* # of bytes in current packet */ + char packetbuf[256]; /* workspace for accumulating packet */ + +} gif_dest_struct; + +typedef gif_dest_struct * gif_dest_ptr; + +/* Largest value that will fit in N bits */ +#define MAXCODE(n_bits) ((1 << (n_bits)) - 1) + + +/* + * Routines to package finished data bytes into GIF data blocks. + * A data block consists of a count byte (1..255) and that many data bytes. + */ + +LOCAL(void) +flush_packet (gif_dest_ptr dinfo) +/* flush any accumulated data */ +{ + if (dinfo->bytesinpkt > 0) { /* never write zero-length packet */ + dinfo->packetbuf[0] = (char) dinfo->bytesinpkt++; + if (JFWRITE(dinfo->pub.output_file, dinfo->packetbuf, dinfo->bytesinpkt) + != (size_t) dinfo->bytesinpkt) + ERREXIT(dinfo->cinfo, JERR_FILE_WRITE); + dinfo->bytesinpkt = 0; + } +} + + +/* Add a character to current packet; flush to disk if necessary */ +#define CHAR_OUT(dinfo,c) \ + { (dinfo)->packetbuf[++(dinfo)->bytesinpkt] = (char) (c); \ + if ((dinfo)->bytesinpkt >= 255) \ + flush_packet(dinfo); \ + } + + +/* Routine to convert variable-width codes into a byte stream */ + +LOCAL(void) +output (gif_dest_ptr dinfo, int code) +/* Emit a code of n_bits bits */ +/* Uses cur_accum and cur_bits to reblock into 8-bit bytes */ +{ + dinfo->cur_accum |= ((INT32) code) << dinfo->cur_bits; + dinfo->cur_bits += dinfo->n_bits; + + while (dinfo->cur_bits >= 8) { + CHAR_OUT(dinfo, dinfo->cur_accum & 0xFF); + dinfo->cur_accum >>= 8; + dinfo->cur_bits -= 8; + } +} + + +/* The pseudo-compression algorithm. + * + * In this module we simply output each pixel value as a separate symbol; + * thus, no compression occurs. In fact, there is expansion of one bit per + * pixel, because we use a symbol width one bit wider than the pixel width. + * + * GIF ordinarily uses variable-width symbols, and the decoder will expect + * to ratchet up the symbol width after a fixed number of symbols. + * To simplify the logic and keep the expansion penalty down, we emit a + * GIF Clear code to reset the decoder just before the width would ratchet up. + * Thus, all the symbols in the output file will have the same bit width. + * Note that emitting the Clear codes at the right times is a mere matter of + * counting output symbols and is in no way dependent on the LZW patent. + * + * With a small basic pixel width (low color count), Clear codes will be + * needed very frequently, causing the file to expand even more. So this + * simplistic approach wouldn't work too well on bilevel images, for example. + * But for output of JPEG conversions the pixel width will usually be 8 bits + * (129 to 256 colors), so the overhead added by Clear symbols is only about + * one symbol in every 256. + */ + +LOCAL(void) +compress_init (gif_dest_ptr dinfo, int i_bits) +/* Initialize pseudo-compressor */ +{ + /* init all the state variables */ + dinfo->n_bits = i_bits; + dinfo->maxcode = MAXCODE(dinfo->n_bits); + dinfo->ClearCode = (1 << (i_bits - 1)); + dinfo->EOFCode = dinfo->ClearCode + 1; + dinfo->code_counter = dinfo->ClearCode + 2; + /* init output buffering vars */ + dinfo->bytesinpkt = 0; + dinfo->cur_accum = 0; + dinfo->cur_bits = 0; + /* GIF specifies an initial Clear code */ + output(dinfo, dinfo->ClearCode); +} + + +LOCAL(void) +compress_pixel (gif_dest_ptr dinfo, int c) +/* Accept and "compress" one pixel value. + * The given value must be less than n_bits wide. + */ +{ + /* Output the given pixel value as a symbol. */ + output(dinfo, c); + /* Issue Clear codes often enough to keep the reader from ratcheting up + * its symbol size. + */ + if (dinfo->code_counter < dinfo->maxcode) { + dinfo->code_counter++; + } else { + output(dinfo, dinfo->ClearCode); + dinfo->code_counter = dinfo->ClearCode + 2; /* reset the counter */ + } +} + + +LOCAL(void) +compress_term (gif_dest_ptr dinfo) +/* Clean up at end */ +{ + /* Send an EOF code */ + output(dinfo, dinfo->EOFCode); + /* Flush the bit-packing buffer */ + if (dinfo->cur_bits > 0) { + CHAR_OUT(dinfo, dinfo->cur_accum & 0xFF); + } + /* Flush the packet buffer */ + flush_packet(dinfo); +} + + +/* GIF header construction */ + + +LOCAL(void) +put_word (gif_dest_ptr dinfo, unsigned int w) +/* Emit a 16-bit word, LSB first */ +{ + putc(w & 0xFF, dinfo->pub.output_file); + putc((w >> 8) & 0xFF, dinfo->pub.output_file); +} + + +LOCAL(void) +put_3bytes (gif_dest_ptr dinfo, int val) +/* Emit 3 copies of same byte value --- handy subr for colormap construction */ +{ + putc(val, dinfo->pub.output_file); + putc(val, dinfo->pub.output_file); + putc(val, dinfo->pub.output_file); +} + + +LOCAL(void) +emit_header (gif_dest_ptr dinfo, int num_colors, JSAMPARRAY colormap) +/* Output the GIF file header, including color map */ +/* If colormap==NULL, synthesize a gray-scale colormap */ +{ + int BitsPerPixel, ColorMapSize, InitCodeSize, FlagByte; + int cshift = dinfo->cinfo->data_precision - 8; + int i; + + if (num_colors > 256) + ERREXIT1(dinfo->cinfo, JERR_TOO_MANY_COLORS, num_colors); + /* Compute bits/pixel and related values */ + BitsPerPixel = 1; + while (num_colors > (1 << BitsPerPixel)) + BitsPerPixel++; + ColorMapSize = 1 << BitsPerPixel; + if (BitsPerPixel <= 1) + InitCodeSize = 2; + else + InitCodeSize = BitsPerPixel; + /* + * Write the GIF header. + * Note that we generate a plain GIF87 header for maximum compatibility. + */ + putc('G', dinfo->pub.output_file); + putc('I', dinfo->pub.output_file); + putc('F', dinfo->pub.output_file); + putc('8', dinfo->pub.output_file); + putc('7', dinfo->pub.output_file); + putc('a', dinfo->pub.output_file); + /* Write the Logical Screen Descriptor */ + put_word(dinfo, (unsigned int) dinfo->cinfo->output_width); + put_word(dinfo, (unsigned int) dinfo->cinfo->output_height); + FlagByte = 0x80; /* Yes, there is a global color table */ + FlagByte |= (BitsPerPixel-1) << 4; /* color resolution */ + FlagByte |= (BitsPerPixel-1); /* size of global color table */ + putc(FlagByte, dinfo->pub.output_file); + putc(0, dinfo->pub.output_file); /* Background color index */ + putc(0, dinfo->pub.output_file); /* Reserved (aspect ratio in GIF89) */ + /* Write the Global Color Map */ + /* If the color map is more than 8 bits precision, */ + /* we reduce it to 8 bits by shifting */ + for (i=0; i < ColorMapSize; i++) { + if (i < num_colors) { + if (colormap != NULL) { + if (dinfo->cinfo->out_color_space == JCS_RGB) { + /* Normal case: RGB color map */ + putc(GETJSAMPLE(colormap[0][i]) >> cshift, dinfo->pub.output_file); + putc(GETJSAMPLE(colormap[1][i]) >> cshift, dinfo->pub.output_file); + putc(GETJSAMPLE(colormap[2][i]) >> cshift, dinfo->pub.output_file); + } else { + /* Grayscale "color map": possible if quantizing grayscale image */ + put_3bytes(dinfo, GETJSAMPLE(colormap[0][i]) >> cshift); + } + } else { + /* Create a gray-scale map of num_colors values, range 0..255 */ + put_3bytes(dinfo, (i * 255 + (num_colors-1)/2) / (num_colors-1)); + } + } else { + /* fill out the map to a power of 2 */ + put_3bytes(dinfo, 0); + } + } + /* Write image separator and Image Descriptor */ + putc(',', dinfo->pub.output_file); /* separator */ + put_word(dinfo, 0); /* left/top offset */ + put_word(dinfo, 0); + put_word(dinfo, (unsigned int) dinfo->cinfo->output_width); /* image size */ + put_word(dinfo, (unsigned int) dinfo->cinfo->output_height); + /* flag byte: not interlaced, no local color map */ + putc(0x00, dinfo->pub.output_file); + /* Write Initial Code Size byte */ + putc(InitCodeSize, dinfo->pub.output_file); + + /* Initialize for "compression" of image data */ + compress_init(dinfo, InitCodeSize+1); +} + + +/* + * Startup: write the file header. + */ + +METHODDEF(void) +start_output_gif (j_decompress_ptr cinfo, djpeg_dest_ptr dinfo) +{ + gif_dest_ptr dest = (gif_dest_ptr) dinfo; + + if (cinfo->quantize_colors) + emit_header(dest, cinfo->actual_number_of_colors, cinfo->colormap); + else + emit_header(dest, 256, (JSAMPARRAY) NULL); +} + + +/* + * Write some pixel data. + * In this module rows_supplied will always be 1. + */ + +METHODDEF(void) +put_pixel_rows (j_decompress_ptr cinfo, djpeg_dest_ptr dinfo, + JDIMENSION rows_supplied) +{ + gif_dest_ptr dest = (gif_dest_ptr) dinfo; + register JSAMPROW ptr; + register JDIMENSION col; + + ptr = dest->pub.buffer[0]; + for (col = cinfo->output_width; col > 0; col--) { + compress_pixel(dest, GETJSAMPLE(*ptr++)); + } +} + + +/* + * Finish up at the end of the file. + */ + +METHODDEF(void) +finish_output_gif (j_decompress_ptr cinfo, djpeg_dest_ptr dinfo) +{ + gif_dest_ptr dest = (gif_dest_ptr) dinfo; + + /* Flush "compression" mechanism */ + compress_term(dest); + /* Write a zero-length data block to end the series */ + putc(0, dest->pub.output_file); + /* Write the GIF terminator mark */ + putc(';', dest->pub.output_file); + /* Make sure we wrote the output file OK */ + fflush(dest->pub.output_file); + if (ferror(dest->pub.output_file)) + ERREXIT(cinfo, JERR_FILE_WRITE); +} + + +/* + * The module selection routine for GIF format output. + */ + +GLOBAL(djpeg_dest_ptr) +jinit_write_gif (j_decompress_ptr cinfo) +{ + gif_dest_ptr dest; + + /* Create module interface object, fill in method pointers */ + dest = (gif_dest_ptr) + (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, + SIZEOF(gif_dest_struct)); + dest->cinfo = cinfo; /* make back link for subroutines */ + dest->pub.start_output = start_output_gif; + dest->pub.put_pixel_rows = put_pixel_rows; + dest->pub.finish_output = finish_output_gif; + + if (cinfo->out_color_space != JCS_GRAYSCALE && + cinfo->out_color_space != JCS_RGB) + ERREXIT(cinfo, JERR_GIF_COLORSPACE); + + /* Force quantization if color or if > 8 bits input */ + if (cinfo->out_color_space != JCS_GRAYSCALE || cinfo->data_precision > 8) { + /* Force quantization to at most 256 colors */ + cinfo->quantize_colors = TRUE; + if (cinfo->desired_number_of_colors > 256) + cinfo->desired_number_of_colors = 256; + } + + /* Calculate output image dimensions so we can allocate space */ + jpeg_calc_output_dimensions(cinfo); + + if (cinfo->output_components != 1) /* safety check: just one component? */ + ERREXIT(cinfo, JERR_GIF_BUG); + + /* Create decompressor output buffer. */ + dest->pub.buffer = (*cinfo->mem->alloc_sarray) + ((j_common_ptr) cinfo, JPOOL_IMAGE, cinfo->output_width, (JDIMENSION) 1); + dest->pub.buffer_height = 1; + + return (djpeg_dest_ptr) dest; +} + +#endif /* GIF_SUPPORTED */ diff --git a/jpeg/wrjpgcom.1 b/jpeg/wrjpgcom.1 new file mode 100644 index 0000000..d419a99 --- /dev/null +++ b/jpeg/wrjpgcom.1 @@ -0,0 +1,103 @@ +.TH WRJPGCOM 1 "15 June 1995" +.SH NAME +wrjpgcom \- insert text comments into a JPEG file +.SH SYNOPSIS +.B wrjpgcom +[ +.B \-replace +] +[ +.BI \-comment " text" +] +[ +.BI \-cfile " name" +] +[ +.I filename +] +.LP +.SH DESCRIPTION +.LP +.B wrjpgcom +reads the named JPEG/JFIF file, or the standard input if no file is named, +and generates a new JPEG/JFIF file on standard output. A comment block is +added to the file. +.PP +The JPEG standard allows "comment" (COM) blocks to occur within a JPEG file. +Although the standard doesn't actually define what COM blocks are for, they +are widely used to hold user-supplied text strings. This lets you add +annotations, titles, index terms, etc to your JPEG files, and later retrieve +them as text. COM blocks do not interfere with the image stored in the JPEG +file. The maximum size of a COM block is 64K, but you can have as many of +them as you like in one JPEG file. +.PP +.B wrjpgcom +adds a COM block, containing text you provide, to a JPEG file. +Ordinarily, the COM block is added after any existing COM blocks; but you +can delete the old COM blocks if you wish. +.SH OPTIONS +Switch names may be abbreviated, and are not case sensitive. +.TP +.B \-replace +Delete any existing COM blocks from the file. +.TP +.BI \-comment " text" +Supply text for new COM block on command line. +.TP +.BI \-cfile " name" +Read text for new COM block from named file. +.PP +If you have only one line of comment text to add, you can provide it on the +command line with +.BR \-comment . +The comment text must be surrounded with quotes so that it is treated as a +single argument. Longer comments can be read from a text file. +.PP +If you give neither +.B \-comment +nor +.BR \-cfile , +then +.B wrjpgcom +will read the comment text from standard input. (In this case an input image +file name MUST be supplied, so that the source JPEG file comes from somewhere +else.) You can enter multiple lines, up to 64KB worth. Type an end-of-file +indicator (usually control-D) to terminate the comment text entry. +.PP +.B wrjpgcom +will not add a COM block if the provided comment string is empty. Therefore +\fB\-replace \-comment ""\fR can be used to delete all COM blocks from a file. +.SH EXAMPLES +.LP +Add a short comment to in.jpg, producing out.jpg: +.IP +.B wrjpgcom \-c +\fI"View of my back yard" in.jpg +.B > +.I out.jpg +.PP +Attach a long comment previously stored in comment.txt: +.IP +.B wrjpgcom +.I in.jpg +.B < +.I comment.txt +.B > +.I out.jpg +.PP +or equivalently +.IP +.B wrjpgcom +.B -cfile +.I comment.txt +.B < +.I in.jpg +.B > +.I out.jpg +.SH SEE ALSO +.BR cjpeg (1), +.BR djpeg (1), +.BR jpegtran (1), +.BR rdjpgcom (1) +.SH AUTHOR +Independent JPEG Group diff --git a/jpeg/wrjpgcom.c b/jpeg/wrjpgcom.c new file mode 100644 index 0000000..8c04b05 --- /dev/null +++ b/jpeg/wrjpgcom.c @@ -0,0 +1,583 @@ +/* + * wrjpgcom.c + * + * Copyright (C) 1994-1997, Thomas G. Lane. + * This file is part of the Independent JPEG Group's software. + * For conditions of distribution and use, see the accompanying README file. + * + * This file contains a very simple stand-alone application that inserts + * user-supplied text as a COM (comment) marker in a JFIF file. + * This may be useful as an example of the minimum logic needed to parse + * JPEG markers. + */ + +#define JPEG_CJPEG_DJPEG /* to get the command-line config symbols */ +#include "jinclude.h" /* get auto-config symbols, */ + +#ifndef HAVE_STDLIB_H /* should declare malloc() */ +extern void * malloc (); +#endif +#include /* to declare isupper(), tolower() */ +#ifdef USE_SETMODE +#include /* to declare setmode()'s parameter macros */ +/* If you have setmode() but not , just delete this line: */ +#include /* to declare setmode() */ +#endif + +#ifdef USE_CCOMMAND /* command-line reader for Macintosh */ +#ifdef __MWERKS__ +#include /* Metrowerks needs this */ +#include /* ... and this */ +#endif +#ifdef THINK_C +#include /* Think declares it here */ +#endif +#endif + +#ifdef DONT_USE_B_MODE /* define mode parameters for fopen() */ +#define READ_BINARY "r" +#define WRITE_BINARY "w" +#else +#ifdef VMS /* VMS is very nonstandard */ +#define READ_BINARY "rb", "ctx=stm" +#define WRITE_BINARY "wb", "ctx=stm" +#else /* standard ANSI-compliant case */ +#define READ_BINARY "rb" +#define WRITE_BINARY "wb" +#endif +#endif + +#ifndef EXIT_FAILURE /* define exit() codes if not provided */ +#define EXIT_FAILURE 1 +#endif +#ifndef EXIT_SUCCESS +#ifdef VMS +#define EXIT_SUCCESS 1 /* VMS is very nonstandard */ +#else +#define EXIT_SUCCESS 0 +#endif +#endif + +/* Reduce this value if your malloc() can't allocate blocks up to 64K. + * On DOS, compiling in large model is usually a better solution. + */ + +#ifndef MAX_COM_LENGTH +#define MAX_COM_LENGTH 65000L /* must be <= 65533 in any case */ +#endif + + +/* + * These macros are used to read the input file and write the output file. + * To reuse this code in another application, you might need to change these. + */ + +static FILE * infile; /* input JPEG file */ + +/* Return next input byte, or EOF if no more */ +#define NEXTBYTE() getc(infile) + +static FILE * outfile; /* output JPEG file */ + +/* Emit an output byte */ +#define PUTBYTE(x) putc((x), outfile) + + +/* Error exit handler */ +#define ERREXIT(msg) (fprintf(stderr, "%s\n", msg), exit(EXIT_FAILURE)) + + +/* Read one byte, testing for EOF */ +static int +read_1_byte (void) +{ + int c; + + c = NEXTBYTE(); + if (c == EOF) + ERREXIT("Premature EOF in JPEG file"); + return c; +} + +/* Read 2 bytes, convert to unsigned int */ +/* All 2-byte quantities in JPEG markers are MSB first */ +static unsigned int +read_2_bytes (void) +{ + int c1, c2; + + c1 = NEXTBYTE(); + if (c1 == EOF) + ERREXIT("Premature EOF in JPEG file"); + c2 = NEXTBYTE(); + if (c2 == EOF) + ERREXIT("Premature EOF in JPEG file"); + return (((unsigned int) c1) << 8) + ((unsigned int) c2); +} + + +/* Routines to write data to output file */ + +static void +write_1_byte (int c) +{ + PUTBYTE(c); +} + +static void +write_2_bytes (unsigned int val) +{ + PUTBYTE((val >> 8) & 0xFF); + PUTBYTE(val & 0xFF); +} + +static void +write_marker (int marker) +{ + PUTBYTE(0xFF); + PUTBYTE(marker); +} + +static void +copy_rest_of_file (void) +{ + int c; + + while ((c = NEXTBYTE()) != EOF) + PUTBYTE(c); +} + + +/* + * JPEG markers consist of one or more 0xFF bytes, followed by a marker + * code byte (which is not an FF). Here are the marker codes of interest + * in this program. (See jdmarker.c for a more complete list.) + */ + +#define M_SOF0 0xC0 /* Start Of Frame N */ +#define M_SOF1 0xC1 /* N indicates which compression process */ +#define M_SOF2 0xC2 /* Only SOF0-SOF2 are now in common use */ +#define M_SOF3 0xC3 +#define M_SOF5 0xC5 /* NB: codes C4 and CC are NOT SOF markers */ +#define M_SOF6 0xC6 +#define M_SOF7 0xC7 +#define M_SOF9 0xC9 +#define M_SOF10 0xCA +#define M_SOF11 0xCB +#define M_SOF13 0xCD +#define M_SOF14 0xCE +#define M_SOF15 0xCF +#define M_SOI 0xD8 /* Start Of Image (beginning of datastream) */ +#define M_EOI 0xD9 /* End Of Image (end of datastream) */ +#define M_SOS 0xDA /* Start Of Scan (begins compressed data) */ +#define M_COM 0xFE /* COMment */ + + +/* + * Find the next JPEG marker and return its marker code. + * We expect at least one FF byte, possibly more if the compressor used FFs + * to pad the file. (Padding FFs will NOT be replicated in the output file.) + * There could also be non-FF garbage between markers. The treatment of such + * garbage is unspecified; we choose to skip over it but emit a warning msg. + * NB: this routine must not be used after seeing SOS marker, since it will + * not deal correctly with FF/00 sequences in the compressed image data... + */ + +static int +next_marker (void) +{ + int c; + int discarded_bytes = 0; + + /* Find 0xFF byte; count and skip any non-FFs. */ + c = read_1_byte(); + while (c != 0xFF) { + discarded_bytes++; + c = read_1_byte(); + } + /* Get marker code byte, swallowing any duplicate FF bytes. Extra FFs + * are legal as pad bytes, so don't count them in discarded_bytes. + */ + do { + c = read_1_byte(); + } while (c == 0xFF); + + if (discarded_bytes != 0) { + fprintf(stderr, "Warning: garbage data found in JPEG file\n"); + } + + return c; +} + + +/* + * Read the initial marker, which should be SOI. + * For a JFIF file, the first two bytes of the file should be literally + * 0xFF M_SOI. To be more general, we could use next_marker, but if the + * input file weren't actually JPEG at all, next_marker might read the whole + * file and then return a misleading error message... + */ + +static int +first_marker (void) +{ + int c1, c2; + + c1 = NEXTBYTE(); + c2 = NEXTBYTE(); + if (c1 != 0xFF || c2 != M_SOI) + ERREXIT("Not a JPEG file"); + return c2; +} + + +/* + * Most types of marker are followed by a variable-length parameter segment. + * This routine skips over the parameters for any marker we don't otherwise + * want to process. + * Note that we MUST skip the parameter segment explicitly in order not to + * be fooled by 0xFF bytes that might appear within the parameter segment; + * such bytes do NOT introduce new markers. + */ + +static void +copy_variable (void) +/* Copy an unknown or uninteresting variable-length marker */ +{ + unsigned int length; + + /* Get the marker parameter length count */ + length = read_2_bytes(); + write_2_bytes(length); + /* Length includes itself, so must be at least 2 */ + if (length < 2) + ERREXIT("Erroneous JPEG marker length"); + length -= 2; + /* Skip over the remaining bytes */ + while (length > 0) { + write_1_byte(read_1_byte()); + length--; + } +} + +static void +skip_variable (void) +/* Skip over an unknown or uninteresting variable-length marker */ +{ + unsigned int length; + + /* Get the marker parameter length count */ + length = read_2_bytes(); + /* Length includes itself, so must be at least 2 */ + if (length < 2) + ERREXIT("Erroneous JPEG marker length"); + length -= 2; + /* Skip over the remaining bytes */ + while (length > 0) { + (void) read_1_byte(); + length--; + } +} + + +/* + * Parse the marker stream until SOFn or EOI is seen; + * copy data to output, but discard COM markers unless keep_COM is true. + */ + +static int +scan_JPEG_header (int keep_COM) +{ + int marker; + + /* Expect SOI at start of file */ + if (first_marker() != M_SOI) + ERREXIT("Expected SOI marker first"); + write_marker(M_SOI); + + /* Scan miscellaneous markers until we reach SOFn. */ + for (;;) { + marker = next_marker(); + switch (marker) { + /* Note that marker codes 0xC4, 0xC8, 0xCC are not, and must not be, + * treated as SOFn. C4 in particular is actually DHT. + */ + case M_SOF0: /* Baseline */ + case M_SOF1: /* Extended sequential, Huffman */ + case M_SOF2: /* Progressive, Huffman */ + case M_SOF3: /* Lossless, Huffman */ + case M_SOF5: /* Differential sequential, Huffman */ + case M_SOF6: /* Differential progressive, Huffman */ + case M_SOF7: /* Differential lossless, Huffman */ + case M_SOF9: /* Extended sequential, arithmetic */ + case M_SOF10: /* Progressive, arithmetic */ + case M_SOF11: /* Lossless, arithmetic */ + case M_SOF13: /* Differential sequential, arithmetic */ + case M_SOF14: /* Differential progressive, arithmetic */ + case M_SOF15: /* Differential lossless, arithmetic */ + return marker; + + case M_SOS: /* should not see compressed data before SOF */ + ERREXIT("SOS without prior SOFn"); + break; + + case M_EOI: /* in case it's a tables-only JPEG stream */ + return marker; + + case M_COM: /* Existing COM: conditionally discard */ + if (keep_COM) { + write_marker(marker); + copy_variable(); + } else { + skip_variable(); + } + break; + + default: /* Anything else just gets copied */ + write_marker(marker); + copy_variable(); /* we assume it has a parameter count... */ + break; + } + } /* end loop */ +} + + +/* Command line parsing code */ + +static const char * progname; /* program name for error messages */ + + +static void +usage (void) +/* complain about bad command line */ +{ + fprintf(stderr, "wrjpgcom inserts a textual comment in a JPEG file.\n"); + fprintf(stderr, "You can add to or replace any existing comment(s).\n"); + + fprintf(stderr, "Usage: %s [switches] ", progname); +#ifdef TWO_FILE_COMMANDLINE + fprintf(stderr, "inputfile outputfile\n"); +#else + fprintf(stderr, "[inputfile]\n"); +#endif + + fprintf(stderr, "Switches (names may be abbreviated):\n"); + fprintf(stderr, " -replace Delete any existing comments\n"); + fprintf(stderr, " -comment \"text\" Insert comment with given text\n"); + fprintf(stderr, " -cfile name Read comment from named file\n"); + fprintf(stderr, "Notice that you must put quotes around the comment text\n"); + fprintf(stderr, "when you use -comment.\n"); + fprintf(stderr, "If you do not give either -comment or -cfile on the command line,\n"); + fprintf(stderr, "then the comment text is read from standard input.\n"); + fprintf(stderr, "It can be multiple lines, up to %u characters total.\n", + (unsigned int) MAX_COM_LENGTH); +#ifndef TWO_FILE_COMMANDLINE + fprintf(stderr, "You must specify an input JPEG file name when supplying\n"); + fprintf(stderr, "comment text from standard input.\n"); +#endif + + exit(EXIT_FAILURE); +} + + +static int +keymatch (char * arg, const char * keyword, int minchars) +/* Case-insensitive matching of (possibly abbreviated) keyword switches. */ +/* keyword is the constant keyword (must be lower case already), */ +/* minchars is length of minimum legal abbreviation. */ +{ + register int ca, ck; + register int nmatched = 0; + + while ((ca = *arg++) != '\0') { + if ((ck = *keyword++) == '\0') + return 0; /* arg longer than keyword, no good */ + if (isupper(ca)) /* force arg to lcase (assume ck is already) */ + ca = tolower(ca); + if (ca != ck) + return 0; /* no good */ + nmatched++; /* count matched characters */ + } + /* reached end of argument; fail if it's too short for unique abbrev */ + if (nmatched < minchars) + return 0; + return 1; /* A-OK */ +} + + +/* + * The main program. + */ + +int +main (int argc, char **argv) +{ + int argn; + char * arg; + int keep_COM = 1; + char * comment_arg = NULL; + FILE * comment_file = NULL; + unsigned int comment_length = 0; + int marker; + + /* On Mac, fetch a command line. */ +#ifdef USE_CCOMMAND + argc = ccommand(&argv); +#endif + + progname = argv[0]; + if (progname == NULL || progname[0] == 0) + progname = "wrjpgcom"; /* in case C library doesn't provide it */ + + /* Parse switches, if any */ + for (argn = 1; argn < argc; argn++) { + arg = argv[argn]; + if (arg[0] != '-') + break; /* not switch, must be file name */ + arg++; /* advance over '-' */ + if (keymatch(arg, "replace", 1)) { + keep_COM = 0; + } else if (keymatch(arg, "cfile", 2)) { + if (++argn >= argc) usage(); + if ((comment_file = fopen(argv[argn], "r")) == NULL) { + fprintf(stderr, "%s: can't open %s\n", progname, argv[argn]); + exit(EXIT_FAILURE); + } + } else if (keymatch(arg, "comment", 1)) { + if (++argn >= argc) usage(); + comment_arg = argv[argn]; + /* If the comment text starts with '"', then we are probably running + * under MS-DOG and must parse out the quoted string ourselves. Sigh. + */ + if (comment_arg[0] == '"') { + comment_arg = (char *) malloc((size_t) MAX_COM_LENGTH); + if (comment_arg == NULL) + ERREXIT("Insufficient memory"); + strcpy(comment_arg, argv[argn]+1); + for (;;) { + comment_length = (unsigned int) strlen(comment_arg); + if (comment_length > 0 && comment_arg[comment_length-1] == '"') { + comment_arg[comment_length-1] = '\0'; /* zap terminating quote */ + break; + } + if (++argn >= argc) + ERREXIT("Missing ending quote mark"); + strcat(comment_arg, " "); + strcat(comment_arg, argv[argn]); + } + } + comment_length = (unsigned int) strlen(comment_arg); + } else + usage(); + } + + /* Cannot use both -comment and -cfile. */ + if (comment_arg != NULL && comment_file != NULL) + usage(); + /* If there is neither -comment nor -cfile, we will read the comment text + * from stdin; in this case there MUST be an input JPEG file name. + */ + if (comment_arg == NULL && comment_file == NULL && argn >= argc) + usage(); + + /* Open the input file. */ + if (argn < argc) { + if ((infile = fopen(argv[argn], READ_BINARY)) == NULL) { + fprintf(stderr, "%s: can't open %s\n", progname, argv[argn]); + exit(EXIT_FAILURE); + } + } else { + /* default input file is stdin */ +#ifdef USE_SETMODE /* need to hack file mode? */ + setmode(fileno(stdin), O_BINARY); +#endif +#ifdef USE_FDOPEN /* need to re-open in binary mode? */ + if ((infile = fdopen(fileno(stdin), READ_BINARY)) == NULL) { + fprintf(stderr, "%s: can't open stdin\n", progname); + exit(EXIT_FAILURE); + } +#else + infile = stdin; +#endif + } + + /* Open the output file. */ +#ifdef TWO_FILE_COMMANDLINE + /* Must have explicit output file name */ + if (argn != argc-2) { + fprintf(stderr, "%s: must name one input and one output file\n", + progname); + usage(); + } + if ((outfile = fopen(argv[argn+1], WRITE_BINARY)) == NULL) { + fprintf(stderr, "%s: can't open %s\n", progname, argv[argn+1]); + exit(EXIT_FAILURE); + } +#else + /* Unix style: expect zero or one file name */ + if (argn < argc-1) { + fprintf(stderr, "%s: only one input file\n", progname); + usage(); + } + /* default output file is stdout */ +#ifdef USE_SETMODE /* need to hack file mode? */ + setmode(fileno(stdout), O_BINARY); +#endif +#ifdef USE_FDOPEN /* need to re-open in binary mode? */ + if ((outfile = fdopen(fileno(stdout), WRITE_BINARY)) == NULL) { + fprintf(stderr, "%s: can't open stdout\n", progname); + exit(EXIT_FAILURE); + } +#else + outfile = stdout; +#endif +#endif /* TWO_FILE_COMMANDLINE */ + + /* Collect comment text from comment_file or stdin, if necessary */ + if (comment_arg == NULL) { + FILE * src_file; + int c; + + comment_arg = (char *) malloc((size_t) MAX_COM_LENGTH); + if (comment_arg == NULL) + ERREXIT("Insufficient memory"); + comment_length = 0; + src_file = (comment_file != NULL ? comment_file : stdin); + while ((c = getc(src_file)) != EOF) { + if (comment_length >= (unsigned int) MAX_COM_LENGTH) { + fprintf(stderr, "Comment text may not exceed %u bytes\n", + (unsigned int) MAX_COM_LENGTH); + exit(EXIT_FAILURE); + } + comment_arg[comment_length++] = (char) c; + } + if (comment_file != NULL) + fclose(comment_file); + } + + /* Copy JPEG headers until SOFn marker; + * we will insert the new comment marker just before SOFn. + * This (a) causes the new comment to appear after, rather than before, + * existing comments; and (b) ensures that comments come after any JFIF + * or JFXX markers, as required by the JFIF specification. + */ + marker = scan_JPEG_header(keep_COM); + /* Insert the new COM marker, but only if nonempty text has been supplied */ + if (comment_length > 0) { + write_marker(M_COM); + write_2_bytes(comment_length + 2); + while (comment_length > 0) { + write_1_byte(*comment_arg++); + comment_length--; + } + } + /* Duplicate the remainder of the source file. + * Note that any COM markers occuring after SOF will not be touched. + */ + write_marker(marker); + copy_rest_of_file(); + + /* All done. */ + exit(EXIT_SUCCESS); + return 0; /* suppress no-return-value warnings */ +} diff --git a/jpeg/wrppm.c b/jpeg/wrppm.c new file mode 100644 index 0000000..68e0c85 --- /dev/null +++ b/jpeg/wrppm.c @@ -0,0 +1,269 @@ +/* + * wrppm.c + * + * Copyright (C) 1991-1996, Thomas G. Lane. + * Modified 2009 by Guido Vollbeding. + * This file is part of the Independent JPEG Group's software. + * For conditions of distribution and use, see the accompanying README file. + * + * This file contains routines to write output images in PPM/PGM format. + * The extended 2-byte-per-sample raw PPM/PGM formats are supported. + * The PBMPLUS library is NOT required to compile this software + * (but it is highly useful as a set of PPM image manipulation programs). + * + * These routines may need modification for non-Unix environments or + * specialized applications. As they stand, they assume output to + * an ordinary stdio stream. + */ + +#include "cdjpeg.h" /* Common decls for cjpeg/djpeg applications */ + +#ifdef PPM_SUPPORTED + + +/* + * For 12-bit JPEG data, we either downscale the values to 8 bits + * (to write standard byte-per-sample PPM/PGM files), or output + * nonstandard word-per-sample PPM/PGM files. Downscaling is done + * if PPM_NORAWWORD is defined (this can be done in the Makefile + * or in jconfig.h). + * (When the core library supports data precision reduction, a cleaner + * implementation will be to ask for that instead.) + */ + +#if BITS_IN_JSAMPLE == 8 +#define PUTPPMSAMPLE(ptr,v) *ptr++ = (char) (v) +#define BYTESPERSAMPLE 1 +#define PPM_MAXVAL 255 +#else +#ifdef PPM_NORAWWORD +#define PUTPPMSAMPLE(ptr,v) *ptr++ = (char) ((v) >> (BITS_IN_JSAMPLE-8)) +#define BYTESPERSAMPLE 1 +#define PPM_MAXVAL 255 +#else +/* The word-per-sample format always puts the MSB first. */ +#define PUTPPMSAMPLE(ptr,v) \ + { register int val_ = v; \ + *ptr++ = (char) ((val_ >> 8) & 0xFF); \ + *ptr++ = (char) (val_ & 0xFF); \ + } +#define BYTESPERSAMPLE 2 +#define PPM_MAXVAL ((1<pub.output_file, dest->iobuffer, dest->buffer_width); +} + + +/* + * This code is used when we have to copy the data and apply a pixel + * format translation. Typically this only happens in 12-bit mode. + */ + +METHODDEF(void) +copy_pixel_rows (j_decompress_ptr cinfo, djpeg_dest_ptr dinfo, + JDIMENSION rows_supplied) +{ + ppm_dest_ptr dest = (ppm_dest_ptr) dinfo; + register char * bufferptr; + register JSAMPROW ptr; + register JDIMENSION col; + + ptr = dest->pub.buffer[0]; + bufferptr = dest->iobuffer; + for (col = dest->samples_per_row; col > 0; col--) { + PUTPPMSAMPLE(bufferptr, GETJSAMPLE(*ptr++)); + } + (void) JFWRITE(dest->pub.output_file, dest->iobuffer, dest->buffer_width); +} + + +/* + * Write some pixel data when color quantization is in effect. + * We have to demap the color index values to straight data. + */ + +METHODDEF(void) +put_demapped_rgb (j_decompress_ptr cinfo, djpeg_dest_ptr dinfo, + JDIMENSION rows_supplied) +{ + ppm_dest_ptr dest = (ppm_dest_ptr) dinfo; + register char * bufferptr; + register int pixval; + register JSAMPROW ptr; + register JSAMPROW color_map0 = cinfo->colormap[0]; + register JSAMPROW color_map1 = cinfo->colormap[1]; + register JSAMPROW color_map2 = cinfo->colormap[2]; + register JDIMENSION col; + + ptr = dest->pub.buffer[0]; + bufferptr = dest->iobuffer; + for (col = cinfo->output_width; col > 0; col--) { + pixval = GETJSAMPLE(*ptr++); + PUTPPMSAMPLE(bufferptr, GETJSAMPLE(color_map0[pixval])); + PUTPPMSAMPLE(bufferptr, GETJSAMPLE(color_map1[pixval])); + PUTPPMSAMPLE(bufferptr, GETJSAMPLE(color_map2[pixval])); + } + (void) JFWRITE(dest->pub.output_file, dest->iobuffer, dest->buffer_width); +} + + +METHODDEF(void) +put_demapped_gray (j_decompress_ptr cinfo, djpeg_dest_ptr dinfo, + JDIMENSION rows_supplied) +{ + ppm_dest_ptr dest = (ppm_dest_ptr) dinfo; + register char * bufferptr; + register JSAMPROW ptr; + register JSAMPROW color_map = cinfo->colormap[0]; + register JDIMENSION col; + + ptr = dest->pub.buffer[0]; + bufferptr = dest->iobuffer; + for (col = cinfo->output_width; col > 0; col--) { + PUTPPMSAMPLE(bufferptr, GETJSAMPLE(color_map[GETJSAMPLE(*ptr++)])); + } + (void) JFWRITE(dest->pub.output_file, dest->iobuffer, dest->buffer_width); +} + + +/* + * Startup: write the file header. + */ + +METHODDEF(void) +start_output_ppm (j_decompress_ptr cinfo, djpeg_dest_ptr dinfo) +{ + ppm_dest_ptr dest = (ppm_dest_ptr) dinfo; + + /* Emit file header */ + switch (cinfo->out_color_space) { + case JCS_GRAYSCALE: + /* emit header for raw PGM format */ + fprintf(dest->pub.output_file, "P5\n%ld %ld\n%d\n", + (long) cinfo->output_width, (long) cinfo->output_height, + PPM_MAXVAL); + break; + case JCS_RGB: + /* emit header for raw PPM format */ + fprintf(dest->pub.output_file, "P6\n%ld %ld\n%d\n", + (long) cinfo->output_width, (long) cinfo->output_height, + PPM_MAXVAL); + break; + default: + ERREXIT(cinfo, JERR_PPM_COLORSPACE); + } +} + + +/* + * Finish up at the end of the file. + */ + +METHODDEF(void) +finish_output_ppm (j_decompress_ptr cinfo, djpeg_dest_ptr dinfo) +{ + /* Make sure we wrote the output file OK */ + fflush(dinfo->output_file); + if (ferror(dinfo->output_file)) + ERREXIT(cinfo, JERR_FILE_WRITE); +} + + +/* + * The module selection routine for PPM format output. + */ + +GLOBAL(djpeg_dest_ptr) +jinit_write_ppm (j_decompress_ptr cinfo) +{ + ppm_dest_ptr dest; + + /* Create module interface object, fill in method pointers */ + dest = (ppm_dest_ptr) + (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, + SIZEOF(ppm_dest_struct)); + dest->pub.start_output = start_output_ppm; + dest->pub.finish_output = finish_output_ppm; + + /* Calculate output image dimensions so we can allocate space */ + jpeg_calc_output_dimensions(cinfo); + + /* Create physical I/O buffer. Note we make this near on a PC. */ + dest->samples_per_row = cinfo->output_width * cinfo->out_color_components; + dest->buffer_width = dest->samples_per_row * (BYTESPERSAMPLE * SIZEOF(char)); + dest->iobuffer = (char *) (*cinfo->mem->alloc_small) + ((j_common_ptr) cinfo, JPOOL_IMAGE, dest->buffer_width); + + if (cinfo->quantize_colors || BITS_IN_JSAMPLE != 8 || + SIZEOF(JSAMPLE) != SIZEOF(char)) { + /* When quantizing, we need an output buffer for colormap indexes + * that's separate from the physical I/O buffer. We also need a + * separate buffer if pixel format translation must take place. + */ + dest->pub.buffer = (*cinfo->mem->alloc_sarray) + ((j_common_ptr) cinfo, JPOOL_IMAGE, + cinfo->output_width * cinfo->output_components, (JDIMENSION) 1); + dest->pub.buffer_height = 1; + if (! cinfo->quantize_colors) + dest->pub.put_pixel_rows = copy_pixel_rows; + else if (cinfo->out_color_space == JCS_GRAYSCALE) + dest->pub.put_pixel_rows = put_demapped_gray; + else + dest->pub.put_pixel_rows = put_demapped_rgb; + } else { + /* We will fwrite() directly from decompressor output buffer. */ + /* Synthesize a JSAMPARRAY pointer structure */ + /* Cast here implies near->far pointer conversion on PCs */ + dest->pixrow = (JSAMPROW) dest->iobuffer; + dest->pub.buffer = & dest->pixrow; + dest->pub.buffer_height = 1; + dest->pub.put_pixel_rows = put_pixel_rows; + } + + return (djpeg_dest_ptr) dest; +} + +#endif /* PPM_SUPPORTED */ diff --git a/jpeg/wrrle.c b/jpeg/wrrle.c new file mode 100644 index 0000000..a4e7337 --- /dev/null +++ b/jpeg/wrrle.c @@ -0,0 +1,305 @@ +/* + * wrrle.c + * + * Copyright (C) 1991-1996, Thomas G. Lane. + * This file is part of the Independent JPEG Group's software. + * For conditions of distribution and use, see the accompanying README file. + * + * This file contains routines to write output images in RLE format. + * The Utah Raster Toolkit library is required (version 3.1 or later). + * + * These routines may need modification for non-Unix environments or + * specialized applications. As they stand, they assume output to + * an ordinary stdio stream. + * + * Based on code contributed by Mike Lijewski, + * with updates from Robert Hutchinson. + */ + +#include "cdjpeg.h" /* Common decls for cjpeg/djpeg applications */ + +#ifdef RLE_SUPPORTED + +/* rle.h is provided by the Utah Raster Toolkit. */ + +#include + +/* + * We assume that JSAMPLE has the same representation as rle_pixel, + * to wit, "unsigned char". Hence we can't cope with 12- or 16-bit samples. + */ + +#if BITS_IN_JSAMPLE != 8 + Sorry, this code only copes with 8-bit JSAMPLEs. /* deliberate syntax err */ +#endif + + +/* + * Since RLE stores scanlines bottom-to-top, we have to invert the image + * from JPEG's top-to-bottom order. To do this, we save the outgoing data + * in a virtual array during put_pixel_row calls, then actually emit the + * RLE file during finish_output. + */ + + +/* + * For now, if we emit an RLE color map then it is always 256 entries long, + * though not all of the entries need be used. + */ + +#define CMAPBITS 8 +#define CMAPLENGTH (1<<(CMAPBITS)) + +typedef struct { + struct djpeg_dest_struct pub; /* public fields */ + + jvirt_sarray_ptr image; /* virtual array to store the output image */ + rle_map *colormap; /* RLE-style color map, or NULL if none */ + rle_pixel **rle_row; /* To pass rows to rle_putrow() */ + +} rle_dest_struct; + +typedef rle_dest_struct * rle_dest_ptr; + +/* Forward declarations */ +METHODDEF(void) rle_put_pixel_rows + JPP((j_decompress_ptr cinfo, djpeg_dest_ptr dinfo, + JDIMENSION rows_supplied)); + + +/* + * Write the file header. + * + * In this module it's easier to wait till finish_output to write anything. + */ + +METHODDEF(void) +start_output_rle (j_decompress_ptr cinfo, djpeg_dest_ptr dinfo) +{ + rle_dest_ptr dest = (rle_dest_ptr) dinfo; + size_t cmapsize; + int i, ci; +#ifdef PROGRESS_REPORT + cd_progress_ptr progress = (cd_progress_ptr) cinfo->progress; +#endif + + /* + * Make sure the image can be stored in RLE format. + * + * - RLE stores image dimensions as *signed* 16 bit integers. JPEG + * uses unsigned, so we have to check the width. + * + * - Colorspace is expected to be grayscale or RGB. + * + * - The number of channels (components) is expected to be 1 (grayscale/ + * pseudocolor) or 3 (truecolor/directcolor). + * (could be 2 or 4 if using an alpha channel, but we aren't) + */ + + if (cinfo->output_width > 32767 || cinfo->output_height > 32767) + ERREXIT2(cinfo, JERR_RLE_DIMENSIONS, cinfo->output_width, + cinfo->output_height); + + if (cinfo->out_color_space != JCS_GRAYSCALE && + cinfo->out_color_space != JCS_RGB) + ERREXIT(cinfo, JERR_RLE_COLORSPACE); + + if (cinfo->output_components != 1 && cinfo->output_components != 3) + ERREXIT1(cinfo, JERR_RLE_TOOMANYCHANNELS, cinfo->num_components); + + /* Convert colormap, if any, to RLE format. */ + + dest->colormap = NULL; + + if (cinfo->quantize_colors) { + /* Allocate storage for RLE-style cmap, zero any extra entries */ + cmapsize = cinfo->out_color_components * CMAPLENGTH * SIZEOF(rle_map); + dest->colormap = (rle_map *) (*cinfo->mem->alloc_small) + ((j_common_ptr) cinfo, JPOOL_IMAGE, cmapsize); + MEMZERO(dest->colormap, cmapsize); + + /* Save away data in RLE format --- note 8-bit left shift! */ + /* Shifting would need adjustment for JSAMPLEs wider than 8 bits. */ + for (ci = 0; ci < cinfo->out_color_components; ci++) { + for (i = 0; i < cinfo->actual_number_of_colors; i++) { + dest->colormap[ci * CMAPLENGTH + i] = + GETJSAMPLE(cinfo->colormap[ci][i]) << 8; + } + } + } + + /* Set the output buffer to the first row */ + dest->pub.buffer = (*cinfo->mem->access_virt_sarray) + ((j_common_ptr) cinfo, dest->image, (JDIMENSION) 0, (JDIMENSION) 1, TRUE); + dest->pub.buffer_height = 1; + + dest->pub.put_pixel_rows = rle_put_pixel_rows; + +#ifdef PROGRESS_REPORT + if (progress != NULL) { + progress->total_extra_passes++; /* count file writing as separate pass */ + } +#endif +} + + +/* + * Write some pixel data. + * + * This routine just saves the data away in a virtual array. + */ + +METHODDEF(void) +rle_put_pixel_rows (j_decompress_ptr cinfo, djpeg_dest_ptr dinfo, + JDIMENSION rows_supplied) +{ + rle_dest_ptr dest = (rle_dest_ptr) dinfo; + + if (cinfo->output_scanline < cinfo->output_height) { + dest->pub.buffer = (*cinfo->mem->access_virt_sarray) + ((j_common_ptr) cinfo, dest->image, + cinfo->output_scanline, (JDIMENSION) 1, TRUE); + } +} + +/* + * Finish up at the end of the file. + * + * Here is where we really output the RLE file. + */ + +METHODDEF(void) +finish_output_rle (j_decompress_ptr cinfo, djpeg_dest_ptr dinfo) +{ + rle_dest_ptr dest = (rle_dest_ptr) dinfo; + rle_hdr header; /* Output file information */ + rle_pixel **rle_row, *red, *green, *blue; + JSAMPROW output_row; + char cmapcomment[80]; + int row, col; + int ci; +#ifdef PROGRESS_REPORT + cd_progress_ptr progress = (cd_progress_ptr) cinfo->progress; +#endif + + /* Initialize the header info */ + header = *rle_hdr_init(NULL); + header.rle_file = dest->pub.output_file; + header.xmin = 0; + header.xmax = cinfo->output_width - 1; + header.ymin = 0; + header.ymax = cinfo->output_height - 1; + header.alpha = 0; + header.ncolors = cinfo->output_components; + for (ci = 0; ci < cinfo->output_components; ci++) { + RLE_SET_BIT(header, ci); + } + if (cinfo->quantize_colors) { + header.ncmap = cinfo->out_color_components; + header.cmaplen = CMAPBITS; + header.cmap = dest->colormap; + /* Add a comment to the output image with the true colormap length. */ + sprintf(cmapcomment, "color_map_length=%d", cinfo->actual_number_of_colors); + rle_putcom(cmapcomment, &header); + } + + /* Emit the RLE header and color map (if any) */ + rle_put_setup(&header); + + /* Now output the RLE data from our virtual array. + * We assume here that (a) rle_pixel is represented the same as JSAMPLE, + * and (b) we are not on a machine where FAR pointers differ from regular. + */ + +#ifdef PROGRESS_REPORT + if (progress != NULL) { + progress->pub.pass_limit = cinfo->output_height; + progress->pub.pass_counter = 0; + (*progress->pub.progress_monitor) ((j_common_ptr) cinfo); + } +#endif + + if (cinfo->output_components == 1) { + for (row = cinfo->output_height-1; row >= 0; row--) { + rle_row = (rle_pixel **) (*cinfo->mem->access_virt_sarray) + ((j_common_ptr) cinfo, dest->image, + (JDIMENSION) row, (JDIMENSION) 1, FALSE); + rle_putrow(rle_row, (int) cinfo->output_width, &header); +#ifdef PROGRESS_REPORT + if (progress != NULL) { + progress->pub.pass_counter++; + (*progress->pub.progress_monitor) ((j_common_ptr) cinfo); + } +#endif + } + } else { + for (row = cinfo->output_height-1; row >= 0; row--) { + rle_row = (rle_pixel **) dest->rle_row; + output_row = * (*cinfo->mem->access_virt_sarray) + ((j_common_ptr) cinfo, dest->image, + (JDIMENSION) row, (JDIMENSION) 1, FALSE); + red = rle_row[0]; + green = rle_row[1]; + blue = rle_row[2]; + for (col = cinfo->output_width; col > 0; col--) { + *red++ = GETJSAMPLE(*output_row++); + *green++ = GETJSAMPLE(*output_row++); + *blue++ = GETJSAMPLE(*output_row++); + } + rle_putrow(rle_row, (int) cinfo->output_width, &header); +#ifdef PROGRESS_REPORT + if (progress != NULL) { + progress->pub.pass_counter++; + (*progress->pub.progress_monitor) ((j_common_ptr) cinfo); + } +#endif + } + } + +#ifdef PROGRESS_REPORT + if (progress != NULL) + progress->completed_extra_passes++; +#endif + + /* Emit file trailer */ + rle_puteof(&header); + fflush(dest->pub.output_file); + if (ferror(dest->pub.output_file)) + ERREXIT(cinfo, JERR_FILE_WRITE); +} + + +/* + * The module selection routine for RLE format output. + */ + +GLOBAL(djpeg_dest_ptr) +jinit_write_rle (j_decompress_ptr cinfo) +{ + rle_dest_ptr dest; + + /* Create module interface object, fill in method pointers */ + dest = (rle_dest_ptr) + (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, + SIZEOF(rle_dest_struct)); + dest->pub.start_output = start_output_rle; + dest->pub.finish_output = finish_output_rle; + + /* Calculate output image dimensions so we can allocate space */ + jpeg_calc_output_dimensions(cinfo); + + /* Allocate a work array for output to the RLE library. */ + dest->rle_row = (*cinfo->mem->alloc_sarray) + ((j_common_ptr) cinfo, JPOOL_IMAGE, + cinfo->output_width, (JDIMENSION) cinfo->output_components); + + /* Allocate a virtual array to hold the image. */ + dest->image = (*cinfo->mem->request_virt_sarray) + ((j_common_ptr) cinfo, JPOOL_IMAGE, FALSE, + (JDIMENSION) (cinfo->output_width * cinfo->output_components), + cinfo->output_height, (JDIMENSION) 1); + + return (djpeg_dest_ptr) dest; +} + +#endif /* RLE_SUPPORTED */ diff --git a/jpeg/wrtarga.c b/jpeg/wrtarga.c new file mode 100644 index 0000000..cf104d2 --- /dev/null +++ b/jpeg/wrtarga.c @@ -0,0 +1,253 @@ +/* + * wrtarga.c + * + * Copyright (C) 1991-1996, Thomas G. Lane. + * This file is part of the Independent JPEG Group's software. + * For conditions of distribution and use, see the accompanying README file. + * + * This file contains routines to write output images in Targa format. + * + * These routines may need modification for non-Unix environments or + * specialized applications. As they stand, they assume output to + * an ordinary stdio stream. + * + * Based on code contributed by Lee Daniel Crocker. + */ + +#include "cdjpeg.h" /* Common decls for cjpeg/djpeg applications */ + +#ifdef TARGA_SUPPORTED + + +/* + * To support 12-bit JPEG data, we'd have to scale output down to 8 bits. + * This is not yet implemented. + */ + +#if BITS_IN_JSAMPLE != 8 + Sorry, this code only copes with 8-bit JSAMPLEs. /* deliberate syntax err */ +#endif + +/* + * The output buffer needs to be writable by fwrite(). On PCs, we must + * allocate the buffer in near data space, because we are assuming small-data + * memory model, wherein fwrite() can't reach far memory. If you need to + * process very wide images on a PC, you might have to compile in large-memory + * model, or else replace fwrite() with a putc() loop --- which will be much + * slower. + */ + + +/* Private version of data destination object */ + +typedef struct { + struct djpeg_dest_struct pub; /* public fields */ + + char *iobuffer; /* physical I/O buffer */ + JDIMENSION buffer_width; /* width of one row */ +} tga_dest_struct; + +typedef tga_dest_struct * tga_dest_ptr; + + +LOCAL(void) +write_header (j_decompress_ptr cinfo, djpeg_dest_ptr dinfo, int num_colors) +/* Create and write a Targa header */ +{ + char targaheader[18]; + + /* Set unused fields of header to 0 */ + MEMZERO(targaheader, SIZEOF(targaheader)); + + if (num_colors > 0) { + targaheader[1] = 1; /* color map type 1 */ + targaheader[5] = (char) (num_colors & 0xFF); + targaheader[6] = (char) (num_colors >> 8); + targaheader[7] = 24; /* 24 bits per cmap entry */ + } + + targaheader[12] = (char) (cinfo->output_width & 0xFF); + targaheader[13] = (char) (cinfo->output_width >> 8); + targaheader[14] = (char) (cinfo->output_height & 0xFF); + targaheader[15] = (char) (cinfo->output_height >> 8); + targaheader[17] = 0x20; /* Top-down, non-interlaced */ + + if (cinfo->out_color_space == JCS_GRAYSCALE) { + targaheader[2] = 3; /* image type = uncompressed gray-scale */ + targaheader[16] = 8; /* bits per pixel */ + } else { /* must be RGB */ + if (num_colors > 0) { + targaheader[2] = 1; /* image type = colormapped RGB */ + targaheader[16] = 8; + } else { + targaheader[2] = 2; /* image type = uncompressed RGB */ + targaheader[16] = 24; + } + } + + if (JFWRITE(dinfo->output_file, targaheader, 18) != (size_t) 18) + ERREXIT(cinfo, JERR_FILE_WRITE); +} + + +/* + * Write some pixel data. + * In this module rows_supplied will always be 1. + */ + +METHODDEF(void) +put_pixel_rows (j_decompress_ptr cinfo, djpeg_dest_ptr dinfo, + JDIMENSION rows_supplied) +/* used for unquantized full-color output */ +{ + tga_dest_ptr dest = (tga_dest_ptr) dinfo; + register JSAMPROW inptr; + register char * outptr; + register JDIMENSION col; + + inptr = dest->pub.buffer[0]; + outptr = dest->iobuffer; + for (col = cinfo->output_width; col > 0; col--) { + outptr[0] = (char) GETJSAMPLE(inptr[2]); /* RGB to BGR order */ + outptr[1] = (char) GETJSAMPLE(inptr[1]); + outptr[2] = (char) GETJSAMPLE(inptr[0]); + inptr += 3, outptr += 3; + } + (void) JFWRITE(dest->pub.output_file, dest->iobuffer, dest->buffer_width); +} + +METHODDEF(void) +put_gray_rows (j_decompress_ptr cinfo, djpeg_dest_ptr dinfo, + JDIMENSION rows_supplied) +/* used for grayscale OR quantized color output */ +{ + tga_dest_ptr dest = (tga_dest_ptr) dinfo; + register JSAMPROW inptr; + register char * outptr; + register JDIMENSION col; + + inptr = dest->pub.buffer[0]; + outptr = dest->iobuffer; + for (col = cinfo->output_width; col > 0; col--) { + *outptr++ = (char) GETJSAMPLE(*inptr++); + } + (void) JFWRITE(dest->pub.output_file, dest->iobuffer, dest->buffer_width); +} + + +/* + * Write some demapped pixel data when color quantization is in effect. + * For Targa, this is only applied to grayscale data. + */ + +METHODDEF(void) +put_demapped_gray (j_decompress_ptr cinfo, djpeg_dest_ptr dinfo, + JDIMENSION rows_supplied) +{ + tga_dest_ptr dest = (tga_dest_ptr) dinfo; + register JSAMPROW inptr; + register char * outptr; + register JSAMPROW color_map0 = cinfo->colormap[0]; + register JDIMENSION col; + + inptr = dest->pub.buffer[0]; + outptr = dest->iobuffer; + for (col = cinfo->output_width; col > 0; col--) { + *outptr++ = (char) GETJSAMPLE(color_map0[GETJSAMPLE(*inptr++)]); + } + (void) JFWRITE(dest->pub.output_file, dest->iobuffer, dest->buffer_width); +} + + +/* + * Startup: write the file header. + */ + +METHODDEF(void) +start_output_tga (j_decompress_ptr cinfo, djpeg_dest_ptr dinfo) +{ + tga_dest_ptr dest = (tga_dest_ptr) dinfo; + int num_colors, i; + FILE *outfile; + + if (cinfo->out_color_space == JCS_GRAYSCALE) { + /* Targa doesn't have a mapped grayscale format, so we will */ + /* demap quantized gray output. Never emit a colormap. */ + write_header(cinfo, dinfo, 0); + if (cinfo->quantize_colors) + dest->pub.put_pixel_rows = put_demapped_gray; + else + dest->pub.put_pixel_rows = put_gray_rows; + } else if (cinfo->out_color_space == JCS_RGB) { + if (cinfo->quantize_colors) { + /* We only support 8-bit colormap indexes, so only 256 colors */ + num_colors = cinfo->actual_number_of_colors; + if (num_colors > 256) + ERREXIT1(cinfo, JERR_TOO_MANY_COLORS, num_colors); + write_header(cinfo, dinfo, num_colors); + /* Write the colormap. Note Targa uses BGR byte order */ + outfile = dest->pub.output_file; + for (i = 0; i < num_colors; i++) { + putc(GETJSAMPLE(cinfo->colormap[2][i]), outfile); + putc(GETJSAMPLE(cinfo->colormap[1][i]), outfile); + putc(GETJSAMPLE(cinfo->colormap[0][i]), outfile); + } + dest->pub.put_pixel_rows = put_gray_rows; + } else { + write_header(cinfo, dinfo, 0); + dest->pub.put_pixel_rows = put_pixel_rows; + } + } else { + ERREXIT(cinfo, JERR_TGA_COLORSPACE); + } +} + + +/* + * Finish up at the end of the file. + */ + +METHODDEF(void) +finish_output_tga (j_decompress_ptr cinfo, djpeg_dest_ptr dinfo) +{ + /* Make sure we wrote the output file OK */ + fflush(dinfo->output_file); + if (ferror(dinfo->output_file)) + ERREXIT(cinfo, JERR_FILE_WRITE); +} + + +/* + * The module selection routine for Targa format output. + */ + +GLOBAL(djpeg_dest_ptr) +jinit_write_targa (j_decompress_ptr cinfo) +{ + tga_dest_ptr dest; + + /* Create module interface object, fill in method pointers */ + dest = (tga_dest_ptr) + (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, + SIZEOF(tga_dest_struct)); + dest->pub.start_output = start_output_tga; + dest->pub.finish_output = finish_output_tga; + + /* Calculate output image dimensions so we can allocate space */ + jpeg_calc_output_dimensions(cinfo); + + /* Create I/O buffer. Note we make this near on a PC. */ + dest->buffer_width = cinfo->output_width * cinfo->output_components; + dest->iobuffer = (char *) + (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, + (size_t) (dest->buffer_width * SIZEOF(char))); + + /* Create decompressor output buffer. */ + dest->pub.buffer = (*cinfo->mem->alloc_sarray) + ((j_common_ptr) cinfo, JPOOL_IMAGE, dest->buffer_width, (JDIMENSION) 1); + dest->pub.buffer_height = 1; + + return (djpeg_dest_ptr) dest; +} + +#endif /* TARGA_SUPPORTED */ diff --git a/jpg/Jamfile b/jpg/Jamfile deleted file mode 100644 index 5f9a91c..0000000 --- a/jpg/Jamfile +++ /dev/null @@ -1,26 +0,0 @@ - -#PREF_CCFLAGS = $(CCOPTFLAG) ; # Turn optimisation on -PREF_CCFLAGS = $(CCDEBUGFLAG) ; # Debugging flags -PREF_LINKFLAGS = $(LINKDEBUGFLAG) ; - -# Run configure if it seems to be needed -if $(UNIX) { - GenFileNND jconfig.h : "(cd $(SUBDIR); chmod +x configure ; ./configure)" : configure ; -} - -# else copy them -if $(NT) { - File jconfig.h : jconfig.vc ; -} - -# jpg library -LIBSRCS = jcapimin.c jcapistd.c jdapimin.c jdapistd.c jcomapi.c jcparam.c jctrans.c - jdtrans.c jcinit.c jcmaster.c jcmainct.c jcprepct.c jccoefct.c jccolor.c - jcsample.c jcdctmgr.c jfdctint.c jfdctfst.c jfdctflt.c jchuff.c jcarith.c - jcmarker.c jdatadst.c jdmaster.c jdinput.c jdmainct.c jdcoefct.c jdpostct.c - jdmarker.c jdhuff.c jdarith.c jddctmgr.c jidctint.c jidctfst.c jidctflt.c - jdsample.c jdcolor.c jdmerge.c jquant1.c jquant2.c jdatasrc.c jaricom.c - jerror.c jmemmgr.c jutils.c jmemmgr.c jmemnobs.c ; - -Library libjpeg : $(LIBSRCS) ; - diff --git a/jpg/Makefile.am b/jpg/Makefile.am deleted file mode 100644 index 42cff57..0000000 --- a/jpg/Makefile.am +++ /dev/null @@ -1,134 +0,0 @@ -## Process this file with automake to produce Makefile.in -# -# Automake Makefile for the JPEG library -# -# This file is written by Bob Friesenhahn, Guido Vollbeding -# - -# Sources to build library -LIBSOURCES = jaricom.c jcapimin.c jcapistd.c jcarith.c jccoefct.c jccolor.c \ - jcdctmgr.c jchuff.c jcinit.c jcmainct.c jcmarker.c jcmaster.c \ - jcomapi.c jcparam.c jcprepct.c jcsample.c jctrans.c jdapimin.c \ - jdapistd.c jdarith.c jdatadst.c jdatasrc.c jdcoefct.c jdcolor.c \ - jddctmgr.c jdhuff.c jdinput.c jdmainct.c jdmarker.c jdmaster.c \ - jdmerge.c jdpostct.c jdsample.c jdtrans.c jerror.c jfdctflt.c \ - jfdctfst.c jfdctint.c jidctflt.c jidctfst.c jidctint.c jquant1.c \ - jquant2.c jutils.c jmemmgr.c @MEMORYMGR@.c - -# System dependent sources -SYSDEPSOURCES = jmemansi.c jmemname.c jmemnobs.c jmemdos.c jmemmac.c - -# Headers which are installed to support the library -INSTINCLUDES = jerror.h jmorecfg.h jpeglib.h - -# Headers which are not installed -OTHERINCLUDES = cderror.h cdjpeg.h jdct.h jinclude.h jmemsys.h jpegint.h \ - jversion.h transupp.h - -# Manual pages (Automake uses 'MANS' for itself) -DISTMANS= cjpeg.1 djpeg.1 jpegtran.1 rdjpgcom.1 wrjpgcom.1 - -# Other documentation files -DOCS= README install.txt usage.txt wizard.txt 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$(srcdir)/testprog.jpg - cmp $(srcdir)/testimg.ppm testout.ppm - cmp $(srcdir)/testimg.bmp testout.bmp - cmp $(srcdir)/testimg.jpg testout.jpg - cmp $(srcdir)/testimg.ppm testoutp.ppm - cmp $(srcdir)/testimgp.jpg testoutp.jpg - cmp $(srcdir)/testorig.jpg testoutt.jpg - -# Tell versions [3.59,3.63) of GNU make to not export all variables. -# Otherwise a system limit (for SysV at least) may be exceeded. -.NOEXPORT: diff --git a/jpg/README b/jpg/README deleted file mode 100644 index 0a23c19..0000000 --- a/jpg/README +++ /dev/null @@ -1,351 +0,0 @@ -The Independent JPEG Group's JPEG software -========================================== - -README for release 8d of 15-Jan-2012 -==================================== - -This distribution contains the eighth public release of the Independent JPEG -Group's free JPEG software. You are welcome to redistribute this software and -to use it for any purpose, subject to the conditions under LEGAL ISSUES, below. - -This software is the work of Tom Lane, Guido Vollbeding, Philip Gladstone, -Bill Allombert, Jim Boucher, Lee Crocker, Bob Friesenhahn, Ben Jackson, -Julian Minguillon, Luis Ortiz, George Phillips, Davide Rossi, Ge' Weijers, -and other members of the Independent JPEG Group. - -IJG is not affiliated with the ISO/IEC JTC1/SC29/WG1 standards committee -(also known as JPEG, together with ITU-T SG16). - - -DOCUMENTATION ROADMAP -===================== - -This file contains the following sections: - -OVERVIEW General description of JPEG and the IJG software. -LEGAL ISSUES Copyright, lack of warranty, terms of distribution. -REFERENCES Where to learn more about JPEG. -ARCHIVE LOCATIONS Where to find newer versions of this software. -ACKNOWLEDGMENTS Special thanks. -FILE FORMAT WARS Software *not* to get. -TO DO Plans for future IJG releases. - -Other documentation files in the distribution are: - -User documentation: - install.txt How to configure and install the IJG software. - usage.txt Usage instructions for cjpeg, djpeg, jpegtran, - rdjpgcom, and wrjpgcom. - *.1 Unix-style man pages for programs (same info as usage.txt). - wizard.txt Advanced usage instructions for JPEG wizards only. - change.log Version-to-version change highlights. -Programmer and internal documentation: - libjpeg.txt How to use the JPEG library in your own programs. - example.c Sample code for calling the JPEG library. - structure.txt Overview of the JPEG library's internal structure. - filelist.txt Road map of IJG files. - coderules.txt Coding style rules --- please read if you contribute code. - -Please read at least the files install.txt and usage.txt. Some information -can also be found in the JPEG FAQ (Frequently Asked Questions) article. See -ARCHIVE LOCATIONS below to find out where to obtain the FAQ article. - -If you want to understand how the JPEG code works, we suggest reading one or -more of the REFERENCES, then looking at the documentation files (in roughly -the order listed) before diving into the code. - - -OVERVIEW -======== - -This package contains C software to implement JPEG image encoding, decoding, -and transcoding. JPEG (pronounced "jay-peg") is a standardized compression -method for full-color and gray-scale images. - -This software implements JPEG baseline, extended-sequential, and progressive -compression processes. Provision is made for supporting all variants of these -processes, although some uncommon parameter settings aren't implemented yet. -We have made no provision for supporting the hierarchical or lossless -processes defined in the standard. - -We provide a set of library routines for reading and writing JPEG image files, -plus two sample applications "cjpeg" and "djpeg", which use the library to -perform conversion between JPEG and some other popular image file formats. -The library is intended to be reused in other applications. - -In order to support file conversion and viewing software, we have included -considerable functionality beyond the bare JPEG coding/decoding capability; -for example, the color quantization modules are not strictly part of JPEG -decoding, but they are essential for output to colormapped file formats or -colormapped displays. These extra functions can be compiled out of the -library if not required for a particular application. - -We have also included "jpegtran", a utility for lossless transcoding between -different JPEG processes, and "rdjpgcom" and "wrjpgcom", two simple -applications for inserting and extracting textual comments in JFIF files. - -The emphasis in designing this software has been on achieving portability and -flexibility, while also making it fast enough to be useful. In particular, -the software is not intended to be read as a tutorial on JPEG. (See the -REFERENCES section for introductory material.) Rather, it is intended to -be reliable, portable, industrial-strength code. We do not claim to have -achieved that goal in every aspect of the software, but we strive for it. - -We welcome the use of this software as a component of commercial products. -No royalty is required, but we do ask for an acknowledgement in product -documentation, as described under LEGAL ISSUES. - - -LEGAL ISSUES -============ - -In plain English: - -1. We don't promise that this software works. (But if you find any bugs, - please let us know!) -2. You can use this software for whatever you want. You don't have to pay us. -3. You may not pretend that you wrote this software. If you use it in a - program, you must acknowledge somewhere in your documentation that - you've used the IJG code. - -In legalese: - -The authors make NO WARRANTY or representation, either express or implied, -with respect to this software, its quality, accuracy, merchantability, or -fitness for a particular purpose. This software is provided "AS IS", and you, -its user, assume the entire risk as to its quality and accuracy. - -This software is copyright (C) 1991-2012, Thomas G. Lane, Guido Vollbeding. -All Rights Reserved except as specified below. - -Permission is hereby granted to use, copy, modify, and distribute this -software (or portions thereof) for any purpose, without fee, subject to these -conditions: -(1) If any part of the source code for this software is distributed, then this -README file must be included, with this copyright and no-warranty notice -unaltered; and any additions, deletions, or changes to the original files -must be clearly indicated in accompanying documentation. -(2) If only executable code is distributed, then the accompanying -documentation must state that "this software is based in part on the work of -the Independent JPEG Group". -(3) Permission for use of this software is granted only if the user accepts -full responsibility for any undesirable consequences; the authors accept -NO LIABILITY for damages of any kind. - -These conditions apply to any software derived from or based on the IJG code, -not just to the unmodified library. If you use our work, you ought to -acknowledge us. - -Permission is NOT granted for the use of any IJG author's name or company name -in advertising or publicity relating to this software or products derived from -it. This software may be referred to only as "the Independent JPEG Group's -software". - -We specifically permit and encourage the use of this software as the basis of -commercial products, provided that all warranty or liability claims are -assumed by the product vendor. - - -ansi2knr.c is included in this distribution by permission of L. Peter Deutsch, -sole proprietor of its copyright holder, Aladdin Enterprises of Menlo Park, CA. -ansi2knr.c is NOT covered by the above copyright and conditions, but instead -by the usual distribution terms of the Free Software Foundation; principally, -that you must include source code if you redistribute it. (See the file -ansi2knr.c for full details.) However, since ansi2knr.c is not needed as part -of any program generated from the IJG code, this does not limit you more than -the foregoing paragraphs do. - -The Unix configuration script "configure" was produced with GNU Autoconf. -It is copyright by the Free Software Foundation but is freely distributable. -The same holds for its supporting scripts (config.guess, config.sub, -ltmain.sh). Another support script, install-sh, is copyright by X Consortium -but is also freely distributable. - -The IJG distribution formerly included code to read and write GIF files. -To avoid entanglement with the Unisys LZW patent, GIF reading support has -been removed altogether, and the GIF writer has been simplified to produce -"uncompressed GIFs". This technique does not use the LZW algorithm; the -resulting GIF files are larger than usual, but are readable by all standard -GIF decoders. - -We are required to state that - "The Graphics Interchange Format(c) is the Copyright property of - CompuServe Incorporated. GIF(sm) is a Service Mark property of - CompuServe Incorporated." - - -REFERENCES -========== - -We recommend reading one or more of these references before trying to -understand the innards of the JPEG software. - -The best short technical introduction to the JPEG compression algorithm is - Wallace, Gregory K. "The JPEG Still Picture Compression Standard", - Communications of the ACM, April 1991 (vol. 34 no. 4), pp. 30-44. -(Adjacent articles in that issue discuss MPEG motion picture compression, -applications of JPEG, and related topics.) If you don't have the CACM issue -handy, a PostScript file containing a revised version of Wallace's article is -available at http://www.ijg.org/files/wallace.ps.gz. The file (actually -a preprint for an article that appeared in IEEE Trans. Consumer Electronics) -omits the sample images that appeared in CACM, but it includes corrections -and some added material. Note: the Wallace article is copyright ACM and IEEE, -and it may not be used for commercial purposes. - -A somewhat less technical, more leisurely introduction to JPEG can be found in -"The Data Compression Book" by Mark Nelson and Jean-loup Gailly, published by -M&T Books (New York), 2nd ed. 1996, ISBN 1-55851-434-1. This book provides -good explanations and example C code for a multitude of compression methods -including JPEG. It is an excellent source if you are comfortable reading C -code but don't know much about data compression in general. The book's JPEG -sample code is far from industrial-strength, but when you are ready to look -at a full implementation, you've got one here... - -The best currently available description of JPEG is the textbook "JPEG Still -Image Data Compression Standard" by William B. Pennebaker and Joan L. -Mitchell, published by Van Nostrand Reinhold, 1993, ISBN 0-442-01272-1. -Price US$59.95, 638 pp. The book includes the complete text of the ISO JPEG -standards (DIS 10918-1 and draft DIS 10918-2). -Although this is by far the most detailed and comprehensive exposition of -JPEG publicly available, we point out that it is still missing an explanation -of the most essential properties and algorithms of the underlying DCT -technology. -If you think that you know about DCT-based JPEG after reading this book, -then you are in delusion. The real fundamentals and corresponding potential -of DCT-based JPEG are not publicly known so far, and that is the reason for -all the mistaken developments taking place in the image coding domain. - -The original JPEG standard is divided into two parts, Part 1 being the actual -specification, while Part 2 covers compliance testing methods. Part 1 is -titled "Digital Compression and Coding of Continuous-tone Still Images, -Part 1: Requirements and guidelines" and has document numbers ISO/IEC IS -10918-1, ITU-T T.81. Part 2 is titled "Digital Compression and Coding of -Continuous-tone Still Images, Part 2: Compliance testing" and has document -numbers ISO/IEC IS 10918-2, ITU-T T.83. -IJG JPEG 8 introduces an implementation of the JPEG SmartScale extension -which is specified in two documents: A contributed document at ITU and ISO -with title "ITU-T JPEG-Plus Proposal for Extending ITU-T T.81 for Advanced -Image Coding", April 2006, Geneva, Switzerland. The latest version of this -document is Revision 3. And a contributed document ISO/IEC JTC1/SC29/WG1 N -5799 with title "Evolution of JPEG", June/July 2011, Berlin, Germany. - -The JPEG standard does not specify all details of an interchangeable file -format. For the omitted details we follow the "JFIF" conventions, revision -1.02. JFIF 1.02 has been adopted as an Ecma International Technical Report -and thus received a formal publication status. It is available as a free -download in PDF format from -http://www.ecma-international.org/publications/techreports/E-TR-098.htm. -A PostScript version of the JFIF document is available at -http://www.ijg.org/files/jfif.ps.gz. There is also a plain text version at -http://www.ijg.org/files/jfif.txt.gz, but it is missing the figures. - -The TIFF 6.0 file format specification can be obtained by FTP from -ftp://ftp.sgi.com/graphics/tiff/TIFF6.ps.gz. The JPEG incorporation scheme -found in the TIFF 6.0 spec of 3-June-92 has a number of serious problems. -IJG does not recommend use of the TIFF 6.0 design (TIFF Compression tag 6). -Instead, we recommend the JPEG design proposed by TIFF Technical Note #2 -(Compression tag 7). Copies of this Note can be obtained from -http://www.ijg.org/files/. It is expected that the next revision -of the TIFF spec will replace the 6.0 JPEG design with the Note's design. -Although IJG's own code does not support TIFF/JPEG, the free libtiff library -uses our library to implement TIFF/JPEG per the Note. - - -ARCHIVE LOCATIONS -================= - -The "official" archive site for this software is www.ijg.org. -The most recent released version can always be found there in -directory "files". This particular version will be archived as -http://www.ijg.org/files/jpegsrc.v8d.tar.gz, and in Windows-compatible -"zip" archive format as http://www.ijg.org/files/jpegsr8d.zip. - -The JPEG FAQ (Frequently Asked Questions) article is a source of some -general information about JPEG. -It is available on the World Wide Web at http://www.faqs.org/faqs/jpeg-faq/ -and other news.answers archive sites, including the official news.answers -archive at rtfm.mit.edu: ftp://rtfm.mit.edu/pub/usenet/news.answers/jpeg-faq/. -If you don't have Web or FTP access, send e-mail to mail-server@rtfm.mit.edu -with body - send usenet/news.answers/jpeg-faq/part1 - send usenet/news.answers/jpeg-faq/part2 - - -ACKNOWLEDGMENTS -=============== - -Thank to Juergen Bruder for providing me with a copy of the common DCT -algorithm article, only to find out that I had come to the same result -in a more direct and comprehensible way with a more generative approach. - -Thank to Istvan Sebestyen and Joan L. Mitchell for inviting me to the -ITU JPEG (Study Group 16) meeting in Geneva, Switzerland. - -Thank to Thomas Wiegand and Gary Sullivan for inviting me to the -Joint Video Team (MPEG & ITU) meeting in Geneva, Switzerland. - -Thank to Thomas Richter and Daniel Lee for inviting me to the -ISO/IEC JTC1/SC29/WG1 (also known as JPEG, together with ITU-T SG16) -meeting in Berlin, Germany. - -Thank to John Korejwa and Massimo Ballerini for inviting me to -fruitful consultations in Boston, MA and Milan, Italy. - -Thank to Hendrik Elstner, Roland Fassauer, Simone Zuck, Guenther -Maier-Gerber, Walter Stoeber, Fred Schmitz, and Norbert Braunagel -for corresponding business development. - -Thank to Nico Zschach and Dirk Stelling of the technical support team -at the Digital Images company in Halle for providing me with extra -equipment for configuration tests. - -Thank to Richard F. Lyon (then of Foveon Inc.) for fruitful -communication about JPEG configuration in Sigma Photo Pro software. - -Thank to Andrew Finkenstadt for hosting the ijg.org site. - -Last but not least special thank to Thomas G. Lane for the original -design and development of this singular software package. - - -FILE FORMAT WARS -================ - -The ISO/IEC JTC1/SC29/WG1 standards committee (also known as JPEG, together -with ITU-T SG16) currently promotes different formats containing the name -"JPEG" which is misleading because these formats are incompatible with -original DCT-based JPEG and are based on faulty technologies. -IJG therefore does not and will not support such momentary mistakes -(see REFERENCES). -There exist also distributions under the name "OpenJPEG" promoting such -kind of formats which is misleading because they don't support original -JPEG images. -We have no sympathy for the promotion of inferior formats. Indeed, one of -the original reasons for developing this free software was to help force -convergence on common, interoperable format standards for JPEG files. -Don't use an incompatible file format! -(In any case, our decoder will remain capable of reading existing JPEG -image files indefinitely.) - -Furthermore, the ISO committee pretends to be "responsible for the popular -JPEG" in their public reports which is not true because they don't respond to -actual requirements for the maintenance of the original JPEG specification. - -There are currently distributions in circulation containing the name -"libjpeg" which claim to be a "derivative" or "fork" of the original -libjpeg, but don't have the features and are incompatible with formats -supported by actual IJG libjpeg distributions. Furthermore, they -violate the license conditions as described under LEGAL ISSUES above. -We have no sympathy for the release of misleading and illegal -distributions derived from obsolete code bases. -Don't use an obsolete code base! - - -TO DO -===== - -Version 8 is the first release of a new generation JPEG standard -to overcome the limitations of the original JPEG specification. -More features are being prepared for coming releases... - -Please send bug reports, offers of help, etc. to jpeg-info@jpegclub.org. diff --git a/jpg/aclocal.m4 b/jpg/aclocal.m4 deleted file mode 100644 index 9b38b97..0000000 --- a/jpg/aclocal.m4 +++ /dev/null @@ -1,9652 +0,0 @@ -# generated automatically by aclocal 1.11.2 -*- Autoconf -*- - -# Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, -# 2005, 2006, 2007, 2008, 2009, 2010, 2011 Free Software Foundation, -# Inc. -# This file is free software; the Free Software Foundation -# gives unlimited permission to copy and/or distribute it, -# with or without modifications, as long as this notice is preserved. - -# This program is distributed in the hope that it will be useful, -# but WITHOUT ANY WARRANTY, to the extent permitted by law; without -# even the implied warranty of MERCHANTABILITY or FITNESS FOR A -# PARTICULAR PURPOSE. - -m4_ifndef([AC_AUTOCONF_VERSION], - [m4_copy([m4_PACKAGE_VERSION], [AC_AUTOCONF_VERSION])])dnl -m4_if(m4_defn([AC_AUTOCONF_VERSION]), [2.68],, -[m4_warning([this file was generated for autoconf 2.68. -You have another version of autoconf. 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then - _LT_TAGVAR(lt_prog_compiler_pic, $1)="-Xcompiler $_LT_TAGVAR(lt_prog_compiler_pic, $1)" - fi - ;; - esac - else - # PORTME Check for flag to pass linker flags through the system compiler. - case $host_os in - aix*) - _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' - if test "$host_cpu" = ia64; then - # AIX 5 now supports IA64 processor - _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' - else - _LT_TAGVAR(lt_prog_compiler_static, $1)='-bnso -bI:/lib/syscalls.exp' - fi - ;; - - mingw* | cygwin* | pw32* | os2* | cegcc*) - # This hack is so that the source file can tell whether it is being - # built for inclusion in a dll (and should export symbols for example). - m4_if([$1], [GCJ], [], - [_LT_TAGVAR(lt_prog_compiler_pic, $1)='-DDLL_EXPORT']) - ;; - - hpux9* | hpux10* | hpux11*) - _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' - # PIC is the default for IA64 HP-UX and 64-bit HP-UX, but - # not for PA HP-UX. - case $host_cpu in - hppa*64*|ia64*) - # +Z the default - ;; - *) - _LT_TAGVAR(lt_prog_compiler_pic, $1)='+Z' - ;; 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It will recognize a -multi-line header provided that no intervening line ends with a left or right -brace or a semicolon. These algorithms ignore whitespace and comments, except -that the function name must be the first thing on the line. -.sp -The following constructs will confuse it: -.br - - Any other construct that starts at the left margin and follows the -above syntax (such as a macro or function call). -.br - - Some macros that tinker with the syntax of the function header. -.sp -The --varargs switch is obsolete, and is recognized only for -backwards compatibility. The present version of -.I ansi2knr -will always attempt to convert a ... argument to va_alist and va_dcl. -.SH AUTHOR -L. Peter Deutsch wrote the original ansi2knr and -continues to maintain the current version; most of the code in the current -version is his work. ansi2knr also includes contributions by Francois -Pinard and Jim Avera . diff --git a/jpg/ansi2knr.c b/jpg/ansi2knr.c deleted file mode 100644 index e84c210..0000000 --- a/jpg/ansi2knr.c +++ /dev/null @@ -1,739 +0,0 @@ -/* Copyright (C) 1989, 2000 Aladdin Enterprises. All rights reserved. */ - -/*$Id: ansi2knr.c,v 1.14 2003/09/06 05:36:56 eggert Exp $*/ -/* Convert ANSI C function definitions to K&R ("traditional C") syntax */ - -/* -ansi2knr is distributed in the hope that it will be useful, but WITHOUT ANY -WARRANTY. No author or distributor accepts responsibility to anyone for the -consequences of using it or for whether it serves any particular purpose or -works at all, unless he says so in writing. Refer to the GNU General Public -License (the "GPL") for full details. - -Everyone is granted permission to copy, modify and redistribute ansi2knr, -but only under the conditions described in the GPL. A copy of this license -is supposed to have been given to you along with ansi2knr so you can know -your rights and responsibilities. It should be in a file named COPYLEFT, -or, if there is no file named COPYLEFT, a file named COPYING. Among other -things, the copyright notice and this notice must be preserved on all -copies. - -We explicitly state here what we believe is already implied by the GPL: if -the ansi2knr program is distributed as a separate set of sources and a -separate executable file which are aggregated on a storage medium together -with another program, this in itself does not bring the other program under -the GPL, nor does the mere fact that such a program or the procedures for -constructing it invoke the ansi2knr executable bring any other part of the -program under the GPL. -*/ - -/* - * Usage: - ansi2knr [--filename FILENAME] [INPUT_FILE [OUTPUT_FILE]] - * --filename provides the file name for the #line directive in the output, - * overriding input_file (if present). - * If no input_file is supplied, input is read from stdin. - * If no output_file is supplied, output goes to stdout. - * There are no error messages. - * - * ansi2knr recognizes function definitions by seeing a non-keyword - * identifier at the left margin, followed by a left parenthesis, with a - * right parenthesis as the last character on the line, and with a left - * brace as the first token on the following line (ignoring possible - * intervening comments and/or preprocessor directives), except that a line - * consisting of only - * identifier1(identifier2) - * will not be considered a function definition unless identifier2 is - * the word "void", and a line consisting of - * identifier1(identifier2, <>) - * will not be considered a function definition. - * ansi2knr will recognize a multi-line header provided that no intervening - * line ends with a left or right brace or a semicolon. These algorithms - * ignore whitespace, comments, and preprocessor directives, except that - * the function name must be the first thing on the line. The following - * constructs will confuse it: - * - Any other construct that starts at the left margin and - * follows the above syntax (such as a macro or function call). - * - Some macros that tinker with the syntax of function headers. - */ - -/* - * The original and principal author of ansi2knr is L. Peter Deutsch - * . Other authors are noted in the change history - * that follows (in reverse chronological order): - - lpd 2000-04-12 backs out Eggert's changes because of bugs: - - concatlits didn't declare the type of its bufend argument; - - concatlits didn't recognize when it was inside a comment; - - scanstring could scan backward past the beginning of the string; when - - the check for \ + newline in scanstring was unnecessary. - - 2000-03-05 Paul Eggert - - Add support for concatenated string literals. - * ansi2knr.c (concatlits): New decl. - (main): Invoke concatlits to concatenate string literals. - (scanstring): Handle backslash-newline correctly. Work with - character constants. Fix bug when scanning backwards through - backslash-quote. Check for unterminated strings. - (convert1): Parse character constants, too. - (appendline, concatlits): New functions. - * ansi2knr.1: Document this. - - lpd 1999-08-17 added code to allow preprocessor directives - wherever comments are allowed - lpd 1999-04-12 added minor fixes from Pavel Roskin - for clean compilation with - gcc -W -Wall - lpd 1999-03-22 added hack to recognize lines consisting of - identifier1(identifier2, xxx) as *not* being procedures - lpd 1999-02-03 made indentation of preprocessor commands consistent - lpd 1999-01-28 fixed two bugs: a '/' in an argument list caused an - endless loop; quoted strings within an argument list - confused the parser - lpd 1999-01-24 added a check for write errors on the output, - suggested by Jim Meyering - lpd 1998-11-09 added further hack to recognize identifier(void) - as being a procedure - lpd 1998-10-23 added hack to recognize lines consisting of - identifier1(identifier2) as *not* being procedures - lpd 1997-12-08 made input_file optional; only closes input and/or - output file if not stdin or stdout respectively; prints - usage message on stderr rather than stdout; adds - --filename switch (changes suggested by - ) - lpd 1996-01-21 added code to cope with not HAVE_CONFIG_H and with - compilers that don't understand void, as suggested by - Tom Lane - lpd 1996-01-15 changed to require that the first non-comment token - on the line following a function header be a left brace, - to reduce sensitivity to macros, as suggested by Tom Lane - - lpd 1995-06-22 removed #ifndefs whose sole purpose was to define - undefined preprocessor symbols as 0; changed all #ifdefs - for configuration symbols to #ifs - lpd 1995-04-05 changed copyright notice to make it clear that - including ansi2knr in a program does not bring the entire - program under the GPL - lpd 1994-12-18 added conditionals for systems where ctype macros - don't handle 8-bit characters properly, suggested by - Francois Pinard ; - removed --varargs switch (this is now the default) - lpd 1994-10-10 removed CONFIG_BROKETS conditional - lpd 1994-07-16 added some conditionals to help GNU `configure', - suggested by Francois Pinard ; - properly erase prototype args in function parameters, - contributed by Jim Avera ; - correct error in writeblanks (it shouldn't erase EOLs) - lpd 1989-xx-xx original version - */ - -/* Most of the conditionals here are to make ansi2knr work with */ -/* or without the GNU configure machinery. */ - -#if HAVE_CONFIG_H -# include -#endif - -#include -#include - -#if HAVE_CONFIG_H - -/* - For properly autoconfiguring ansi2knr, use AC_CONFIG_HEADER(config.h). - This will define HAVE_CONFIG_H and so, activate the following lines. - */ - -# if STDC_HEADERS || HAVE_STRING_H -# include -# else -# include -# endif - -#else /* not HAVE_CONFIG_H */ - -/* Otherwise do it the hard way */ - -# ifdef BSD -# include -# else -# ifdef VMS - extern int strlen(), strncmp(); -# else -# include -# endif -# endif - -#endif /* not HAVE_CONFIG_H */ - -#if STDC_HEADERS -# include -#else -/* - malloc and free should be declared in stdlib.h, - but if you've got a K&R compiler, they probably aren't. - */ -# ifdef MSDOS -# include -# else -# ifdef VMS - extern char *malloc(); - extern void free(); -# else - extern char *malloc(); - extern int free(); -# endif -# endif - -#endif - -/* Define NULL (for *very* old compilers). */ -#ifndef NULL -# define NULL (0) -#endif - -/* - * The ctype macros don't always handle 8-bit characters correctly. - * Compensate for this here. - */ -#ifdef isascii -# undef HAVE_ISASCII /* just in case */ -# define HAVE_ISASCII 1 -#else -#endif -#if STDC_HEADERS || !HAVE_ISASCII -# define is_ascii(c) 1 -#else -# define is_ascii(c) isascii(c) -#endif - -#define is_space(c) (is_ascii(c) && isspace(c)) -#define is_alpha(c) (is_ascii(c) && isalpha(c)) -#define is_alnum(c) (is_ascii(c) && isalnum(c)) - -/* Scanning macros */ -#define isidchar(ch) (is_alnum(ch) || (ch) == '_') -#define isidfirstchar(ch) (is_alpha(ch) || (ch) == '_') - -/* Forward references */ -char *ppdirforward(); -char *ppdirbackward(); -char *skipspace(); -char *scanstring(); -int writeblanks(); -int test1(); -int convert1(); - -/* The main program */ -int -main(argc, argv) - int argc; - char *argv[]; -{ FILE *in = stdin; - FILE *out = stdout; - char *filename = 0; - char *program_name = argv[0]; - char *output_name = 0; -#define bufsize 5000 /* arbitrary size */ - char *buf; - char *line; - char *more; - char *usage = - "Usage: ansi2knr [--filename FILENAME] [INPUT_FILE [OUTPUT_FILE]]\n"; - /* - * In previous versions, ansi2knr recognized a --varargs switch. - * If this switch was supplied, ansi2knr would attempt to convert - * a ... argument to va_alist and va_dcl; if this switch was not - * supplied, ansi2knr would simply drop any such arguments. - * Now, ansi2knr always does this conversion, and we only - * check for this switch for backward compatibility. - */ - int convert_varargs = 1; - int output_error; - - while ( argc > 1 && argv[1][0] == '-' ) { - if ( !strcmp(argv[1], "--varargs") ) { - convert_varargs = 1; - argc--; - argv++; - continue; - } - if ( !strcmp(argv[1], "--filename") && argc > 2 ) { - filename = argv[2]; - argc -= 2; - argv += 2; - continue; - } - fprintf(stderr, "%s: Unrecognized switch: %s\n", program_name, - argv[1]); - fprintf(stderr, usage); - exit(1); - } - switch ( argc ) - { - default: - fprintf(stderr, usage); - exit(0); - case 3: - output_name = argv[2]; - out = fopen(output_name, "w"); - if ( out == NULL ) { - fprintf(stderr, "%s: Cannot open output file %s\n", - program_name, output_name); - exit(1); - } - /* falls through */ - case 2: - in = fopen(argv[1], "r"); - if ( in == NULL ) { - fprintf(stderr, "%s: Cannot open input file %s\n", - program_name, argv[1]); - exit(1); - } - if ( filename == 0 ) - filename = argv[1]; - /* falls through */ - case 1: - break; - } - if ( filename ) - fprintf(out, "#line 1 \"%s\"\n", filename); - buf = malloc(bufsize); - if ( buf == NULL ) - { - fprintf(stderr, "Unable to allocate read buffer!\n"); - exit(1); - } - line = buf; - while ( fgets(line, (unsigned)(buf + bufsize - line), in) != NULL ) - { -test: line += strlen(line); - switch ( test1(buf) ) - { - case 2: /* a function header */ - convert1(buf, out, 1, convert_varargs); - break; - case 1: /* a function */ - /* Check for a { at the start of the next line. */ - more = ++line; -f: if ( line >= buf + (bufsize - 1) ) /* overflow check */ - goto wl; - if ( fgets(line, (unsigned)(buf + bufsize - line), in) == NULL ) - goto wl; - switch ( *skipspace(ppdirforward(more), 1) ) - { - case '{': - /* Definitely a function header. */ - convert1(buf, out, 0, convert_varargs); - fputs(more, out); - break; - case 0: - /* The next line was blank or a comment: */ - /* keep scanning for a non-comment. */ - line += strlen(line); - goto f; - default: - /* buf isn't a function header, but */ - /* more might be. */ - fputs(buf, out); - strcpy(buf, more); - line = buf; - goto test; - } - break; - case -1: /* maybe the start of a function */ - if ( line != buf + (bufsize - 1) ) /* overflow check */ - continue; - /* falls through */ - default: /* not a function */ -wl: fputs(buf, out); - break; - } - line = buf; - } - if ( line != buf ) - fputs(buf, out); - free(buf); - if ( output_name ) { - output_error = ferror(out); - output_error |= fclose(out); - } else { /* out == stdout */ - fflush(out); - output_error = ferror(out); - } - if ( output_error ) { - fprintf(stderr, "%s: error writing to %s\n", program_name, - (output_name ? output_name : "stdout")); - exit(1); - } - if ( in != stdin ) - fclose(in); - return 0; -} - -/* - * Skip forward or backward over one or more preprocessor directives. - */ -char * -ppdirforward(p) - char *p; -{ - for (; *p == '#'; ++p) { - for (; *p != '\r' && *p != '\n'; ++p) - if (*p == 0) - return p; - if (*p == '\r' && p[1] == '\n') - ++p; - } - return p; -} -char * -ppdirbackward(p, limit) - char *p; - char *limit; -{ - char *np = p; - - for (;; p = --np) { - if (*np == '\n' && np[-1] == '\r') - --np; - for (; np > limit && np[-1] != '\r' && np[-1] != '\n'; --np) - if (np[-1] == 0) - return np; - if (*np != '#') - return p; - } -} - -/* - * Skip over whitespace, comments, and preprocessor directives, - * in either direction. - */ -char * -skipspace(p, dir) - char *p; - int dir; /* 1 for forward, -1 for backward */ -{ - for ( ; ; ) { - while ( is_space(*p) ) - p += dir; - if ( !(*p == '/' && p[dir] == '*') ) - break; - p += dir; p += dir; - while ( !(*p == '*' && p[dir] == '/') ) { - if ( *p == 0 ) - return p; /* multi-line comment?? */ - p += dir; - } - p += dir; p += dir; - } - return p; -} - -/* Scan over a quoted string, in either direction. */ -char * -scanstring(p, dir) - char *p; - int dir; -{ - for (p += dir; ; p += dir) - if (*p == '"' && p[-dir] != '\\') - return p + dir; -} - -/* - * Write blanks over part of a string. - * Don't overwrite end-of-line characters. - */ -int -writeblanks(start, end) - char *start; - char *end; -{ char *p; - for ( p = start; p < end; p++ ) - if ( *p != '\r' && *p != '\n' ) - *p = ' '; - return 0; -} - -/* - * Test whether the string in buf is a function definition. - * The string may contain and/or end with a newline. - * Return as follows: - * 0 - definitely not a function definition; - * 1 - definitely a function definition; - * 2 - definitely a function prototype (NOT USED); - * -1 - may be the beginning of a function definition, - * append another line and look again. - * The reason we don't attempt to convert function prototypes is that - * Ghostscript's declaration-generating macros look too much like - * prototypes, and confuse the algorithms. - */ -int -test1(buf) - char *buf; -{ char *p = buf; - char *bend; - char *endfn; - int contin; - - if ( !isidfirstchar(*p) ) - return 0; /* no name at left margin */ - bend = skipspace(ppdirbackward(buf + strlen(buf) - 1, buf), -1); - switch ( *bend ) - { - case ';': contin = 0 /*2*/; break; - case ')': contin = 1; break; - case '{': return 0; /* not a function */ - case '}': return 0; /* not a function */ - default: contin = -1; - } - while ( isidchar(*p) ) - p++; - endfn = p; - p = skipspace(p, 1); - if ( *p++ != '(' ) - return 0; /* not a function */ - p = skipspace(p, 1); - if ( *p == ')' ) - return 0; /* no parameters */ - /* Check that the apparent function name isn't a keyword. */ - /* We only need to check for keywords that could be followed */ - /* by a left parenthesis (which, unfortunately, is most of them). */ - { static char *words[] = - { "asm", "auto", "case", "char", "const", "double", - "extern", "float", "for", "if", "int", "long", - "register", "return", "short", "signed", "sizeof", - "static", "switch", "typedef", "unsigned", - "void", "volatile", "while", 0 - }; - char **key = words; - char *kp; - unsigned len = endfn - buf; - - while ( (kp = *key) != 0 ) - { if ( strlen(kp) == len && !strncmp(kp, buf, len) ) - return 0; /* name is a keyword */ - key++; - } - } - { - char *id = p; - int len; - /* - * Check for identifier1(identifier2) and not - * identifier1(void), or identifier1(identifier2, xxxx). - */ - - while ( isidchar(*p) ) - p++; - len = p - id; - p = skipspace(p, 1); - if (*p == ',' || - (*p == ')' && (len != 4 || strncmp(id, "void", 4))) - ) - return 0; /* not a function */ - } - /* - * If the last significant character was a ), we need to count - * parentheses, because it might be part of a formal parameter - * that is a procedure. - */ - if (contin > 0) { - int level = 0; - - for (p = skipspace(buf, 1); *p; p = skipspace(p + 1, 1)) - level += (*p == '(' ? 1 : *p == ')' ? -1 : 0); - if (level > 0) - contin = -1; - } - return contin; -} - -/* Convert a recognized function definition or header to K&R syntax. */ -int -convert1(buf, out, header, convert_varargs) - char *buf; - FILE *out; - int header; /* Boolean */ - int convert_varargs; /* Boolean */ -{ char *endfn; - char *p; - /* - * The breaks table contains pointers to the beginning and end - * of each argument. - */ - char **breaks; - unsigned num_breaks = 2; /* for testing */ - char **btop; - char **bp; - char **ap; - char *vararg = 0; - - /* Pre-ANSI implementations don't agree on whether strchr */ - /* is called strchr or index, so we open-code it here. */ - for ( endfn = buf; *(endfn++) != '('; ) - ; -top: p = endfn; - breaks = (char **)malloc(sizeof(char *) * num_breaks * 2); - if ( breaks == NULL ) - { /* Couldn't allocate break table, give up */ - fprintf(stderr, "Unable to allocate break table!\n"); - fputs(buf, out); - return -1; - } - btop = breaks + num_breaks * 2 - 2; - bp = breaks; - /* Parse the argument list */ - do - { int level = 0; - char *lp = NULL; - char *rp = NULL; - char *end = NULL; - - if ( bp >= btop ) - { /* Filled up break table. */ - /* Allocate a bigger one and start over. */ - free((char *)breaks); - num_breaks <<= 1; - goto top; - } - *bp++ = p; - /* Find the end of the argument */ - for ( ; end == NULL; p++ ) - { switch(*p) - { - case ',': - if ( !level ) end = p; - break; - case '(': - if ( !level ) lp = p; - level++; - break; - case ')': - if ( --level < 0 ) end = p; - else rp = p; - break; - case '/': - if (p[1] == '*') - p = skipspace(p, 1) - 1; - break; - case '"': - p = scanstring(p, 1) - 1; - break; - default: - ; - } - } - /* Erase any embedded prototype parameters. */ - if ( lp && rp ) - writeblanks(lp + 1, rp); - p--; /* back up over terminator */ - /* Find the name being declared. */ - /* This is complicated because of procedure and */ - /* array modifiers. */ - for ( ; ; ) - { p = skipspace(p - 1, -1); - switch ( *p ) - { - case ']': /* skip array dimension(s) */ - case ')': /* skip procedure args OR name */ - { int level = 1; - while ( level ) - switch ( *--p ) - { - case ']': case ')': - level++; - break; - case '[': case '(': - level--; - break; - case '/': - if (p > buf && p[-1] == '*') - p = skipspace(p, -1) + 1; - break; - case '"': - p = scanstring(p, -1) + 1; - break; - default: ; - } - } - if ( *p == '(' && *skipspace(p + 1, 1) == '*' ) - { /* We found the name being declared */ - while ( !isidfirstchar(*p) ) - p = skipspace(p, 1) + 1; - goto found; - } - break; - default: - goto found; - } - } -found: if ( *p == '.' && p[-1] == '.' && p[-2] == '.' ) - { if ( convert_varargs ) - { *bp++ = "va_alist"; - vararg = p-2; - } - else - { p++; - if ( bp == breaks + 1 ) /* sole argument */ - writeblanks(breaks[0], p); - else - writeblanks(bp[-1] - 1, p); - bp--; - } - } - else - { while ( isidchar(*p) ) p--; - *bp++ = p+1; - } - p = end; - } - while ( *p++ == ',' ); - *bp = p; - /* Make a special check for 'void' arglist */ - if ( bp == breaks+2 ) - { p = skipspace(breaks[0], 1); - if ( !strncmp(p, "void", 4) ) - { p = skipspace(p+4, 1); - if ( p == breaks[2] - 1 ) - { bp = breaks; /* yup, pretend arglist is empty */ - writeblanks(breaks[0], p + 1); - } - } - } - /* Put out the function name and left parenthesis. */ - p = buf; - while ( p != endfn ) putc(*p, out), p++; - /* Put out the declaration. */ - if ( header ) - { fputs(");", out); - for ( p = breaks[0]; *p; p++ ) - if ( *p == '\r' || *p == '\n' ) - putc(*p, out); - } - else - { for ( ap = breaks+1; ap < bp; ap += 2 ) - { p = *ap; - while ( isidchar(*p) ) - putc(*p, out), p++; - if ( ap < bp - 1 ) - fputs(", ", out); - } - fputs(") ", out); - /* Put out the argument declarations */ - for ( ap = breaks+2; ap <= bp; ap += 2 ) - (*ap)[-1] = ';'; - if ( vararg != 0 ) - { *vararg = 0; - fputs(breaks[0], out); /* any prior args */ - fputs("va_dcl", out); /* the final arg */ - fputs(bp[0], out); - } - else - fputs(breaks[0], out); - } - free((char *)breaks); - return 0; -} diff --git a/jpg/cderror.h b/jpg/cderror.h deleted file mode 100644 index e19c475..0000000 --- a/jpg/cderror.h +++ /dev/null @@ -1,134 +0,0 @@ -/* - * cderror.h - * - * Copyright (C) 1994-1997, Thomas G. Lane. - * Modified 2009 by Guido Vollbeding. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file defines the error and message codes for the cjpeg/djpeg - * applications. These strings are not needed as part of the JPEG library - * proper. - * Edit this file to add new codes, or to translate the message strings to - * some other language. - */ - -/* - * To define the enum list of message codes, include this file without - * defining macro JMESSAGE. To create a message string table, include it - * again with a suitable JMESSAGE definition (see jerror.c for an example). - */ -#ifndef JMESSAGE -#ifndef CDERROR_H -#define CDERROR_H -/* First time through, define the enum list */ -#define JMAKE_ENUM_LIST -#else -/* Repeated inclusions of this file are no-ops unless JMESSAGE is defined */ -#define JMESSAGE(code,string) -#endif /* CDERROR_H */ -#endif /* JMESSAGE */ - -#ifdef JMAKE_ENUM_LIST - -typedef enum { - -#define JMESSAGE(code,string) code , - -#endif /* JMAKE_ENUM_LIST */ - -JMESSAGE(JMSG_FIRSTADDONCODE=1000, NULL) /* Must be first entry! */ - -#ifdef BMP_SUPPORTED -JMESSAGE(JERR_BMP_BADCMAP, "Unsupported BMP colormap format") -JMESSAGE(JERR_BMP_BADDEPTH, "Only 8- and 24-bit BMP files are supported") -JMESSAGE(JERR_BMP_BADHEADER, "Invalid BMP file: bad header length") -JMESSAGE(JERR_BMP_BADPLANES, "Invalid BMP file: biPlanes not equal to 1") -JMESSAGE(JERR_BMP_COLORSPACE, "BMP output must be grayscale or RGB") -JMESSAGE(JERR_BMP_COMPRESSED, "Sorry, compressed BMPs not yet supported") -JMESSAGE(JERR_BMP_EMPTY, "Empty BMP image") -JMESSAGE(JERR_BMP_NOT, "Not a BMP file - does not start with BM") -JMESSAGE(JTRC_BMP, "%ux%u 24-bit BMP image") -JMESSAGE(JTRC_BMP_MAPPED, "%ux%u 8-bit colormapped BMP image") -JMESSAGE(JTRC_BMP_OS2, "%ux%u 24-bit OS2 BMP image") -JMESSAGE(JTRC_BMP_OS2_MAPPED, "%ux%u 8-bit colormapped OS2 BMP image") -#endif /* BMP_SUPPORTED */ - -#ifdef GIF_SUPPORTED -JMESSAGE(JERR_GIF_BUG, "GIF output got confused") -JMESSAGE(JERR_GIF_CODESIZE, "Bogus GIF codesize %d") -JMESSAGE(JERR_GIF_COLORSPACE, "GIF output must be grayscale or RGB") -JMESSAGE(JERR_GIF_IMAGENOTFOUND, "Too few images in GIF file") -JMESSAGE(JERR_GIF_NOT, "Not a GIF file") -JMESSAGE(JTRC_GIF, "%ux%ux%d GIF image") -JMESSAGE(JTRC_GIF_BADVERSION, - "Warning: unexpected GIF version number '%c%c%c'") -JMESSAGE(JTRC_GIF_EXTENSION, "Ignoring GIF extension block of type 0x%02x") -JMESSAGE(JTRC_GIF_NONSQUARE, "Caution: nonsquare pixels in input") -JMESSAGE(JWRN_GIF_BADDATA, "Corrupt data in GIF file") -JMESSAGE(JWRN_GIF_CHAR, "Bogus char 0x%02x in GIF file, ignoring") -JMESSAGE(JWRN_GIF_ENDCODE, "Premature end of GIF image") -JMESSAGE(JWRN_GIF_NOMOREDATA, "Ran out of GIF bits") -#endif /* GIF_SUPPORTED */ - -#ifdef PPM_SUPPORTED -JMESSAGE(JERR_PPM_COLORSPACE, "PPM output must be grayscale or RGB") -JMESSAGE(JERR_PPM_NONNUMERIC, "Nonnumeric data in PPM file") -JMESSAGE(JERR_PPM_NOT, "Not a PPM/PGM file") -JMESSAGE(JTRC_PGM, "%ux%u PGM image") -JMESSAGE(JTRC_PGM_TEXT, "%ux%u text PGM image") -JMESSAGE(JTRC_PPM, "%ux%u PPM image") -JMESSAGE(JTRC_PPM_TEXT, "%ux%u text PPM image") -#endif /* PPM_SUPPORTED */ - -#ifdef RLE_SUPPORTED -JMESSAGE(JERR_RLE_BADERROR, "Bogus error code from RLE library") -JMESSAGE(JERR_RLE_COLORSPACE, "RLE output must be grayscale or RGB") -JMESSAGE(JERR_RLE_DIMENSIONS, "Image dimensions (%ux%u) too large for RLE") -JMESSAGE(JERR_RLE_EMPTY, "Empty RLE file") -JMESSAGE(JERR_RLE_EOF, "Premature EOF in RLE header") -JMESSAGE(JERR_RLE_MEM, "Insufficient memory for RLE header") -JMESSAGE(JERR_RLE_NOT, "Not an RLE file") -JMESSAGE(JERR_RLE_TOOMANYCHANNELS, "Cannot handle %d output channels for RLE") -JMESSAGE(JERR_RLE_UNSUPPORTED, "Cannot handle this RLE setup") -JMESSAGE(JTRC_RLE, "%ux%u full-color RLE file") -JMESSAGE(JTRC_RLE_FULLMAP, "%ux%u full-color RLE file with map of length %d") -JMESSAGE(JTRC_RLE_GRAY, "%ux%u grayscale RLE file") -JMESSAGE(JTRC_RLE_MAPGRAY, "%ux%u grayscale RLE file with map of length %d") -JMESSAGE(JTRC_RLE_MAPPED, "%ux%u colormapped RLE file with map of length %d") -#endif /* RLE_SUPPORTED */ - -#ifdef TARGA_SUPPORTED -JMESSAGE(JERR_TGA_BADCMAP, "Unsupported Targa colormap format") -JMESSAGE(JERR_TGA_BADPARMS, "Invalid or unsupported Targa file") -JMESSAGE(JERR_TGA_COLORSPACE, "Targa output must be grayscale or RGB") -JMESSAGE(JTRC_TGA, "%ux%u RGB Targa image") -JMESSAGE(JTRC_TGA_GRAY, "%ux%u grayscale Targa image") -JMESSAGE(JTRC_TGA_MAPPED, "%ux%u colormapped Targa image") -#else -JMESSAGE(JERR_TGA_NOTCOMP, "Targa support was not compiled") -#endif /* TARGA_SUPPORTED */ - -JMESSAGE(JERR_BAD_CMAP_FILE, - "Color map file is invalid or of unsupported format") -JMESSAGE(JERR_TOO_MANY_COLORS, - "Output file format cannot handle %d colormap entries") -JMESSAGE(JERR_UNGETC_FAILED, "ungetc failed") -#ifdef TARGA_SUPPORTED -JMESSAGE(JERR_UNKNOWN_FORMAT, - "Unrecognized input file format --- perhaps you need -targa") -#else -JMESSAGE(JERR_UNKNOWN_FORMAT, "Unrecognized input file format") -#endif -JMESSAGE(JERR_UNSUPPORTED_FORMAT, "Unsupported output file format") - -#ifdef JMAKE_ENUM_LIST - - JMSG_LASTADDONCODE -} ADDON_MESSAGE_CODE; - -#undef JMAKE_ENUM_LIST -#endif /* JMAKE_ENUM_LIST */ - -/* Zap JMESSAGE macro so that future re-inclusions do nothing by default */ -#undef JMESSAGE diff --git a/jpg/cdjpeg.c b/jpg/cdjpeg.c deleted file mode 100644 index b6250ff..0000000 --- a/jpg/cdjpeg.c +++ /dev/null @@ -1,181 +0,0 @@ -/* - * cdjpeg.c - * - * Copyright (C) 1991-1997, Thomas G. Lane. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file contains common support routines used by the IJG application - * programs (cjpeg, djpeg, jpegtran). - */ - -#include "cdjpeg.h" /* Common decls for cjpeg/djpeg applications */ -#include /* to declare isupper(), tolower() */ -#ifdef NEED_SIGNAL_CATCHER -#include /* to declare signal() */ -#endif -#ifdef USE_SETMODE -#include /* to declare setmode()'s parameter macros */ -/* If you have setmode() but not , just delete this line: */ -#include /* to declare setmode() */ -#endif - - -/* - * Signal catcher to ensure that temporary files are removed before aborting. - * NB: for Amiga Manx C this is actually a global routine named _abort(); - * we put "#define signal_catcher _abort" in jconfig.h. Talk about bogus... - */ - -#ifdef NEED_SIGNAL_CATCHER - -static j_common_ptr sig_cinfo; - -void /* must be global for Manx C */ -signal_catcher (int signum) -{ - if (sig_cinfo != NULL) { - if (sig_cinfo->err != NULL) /* turn off trace output */ - sig_cinfo->err->trace_level = 0; - jpeg_destroy(sig_cinfo); /* clean up memory allocation & temp files */ - } - exit(EXIT_FAILURE); -} - - -GLOBAL(void) -enable_signal_catcher (j_common_ptr cinfo) -{ - sig_cinfo = cinfo; -#ifdef SIGINT /* not all systems have SIGINT */ - signal(SIGINT, signal_catcher); -#endif -#ifdef SIGTERM /* not all systems have SIGTERM */ - signal(SIGTERM, signal_catcher); -#endif -} - -#endif - - -/* - * Optional progress monitor: display a percent-done figure on stderr. - */ - -#ifdef PROGRESS_REPORT - -METHODDEF(void) -progress_monitor (j_common_ptr cinfo) -{ - cd_progress_ptr prog = (cd_progress_ptr) cinfo->progress; - int total_passes = prog->pub.total_passes + prog->total_extra_passes; - int percent_done = (int) (prog->pub.pass_counter*100L/prog->pub.pass_limit); - - if (percent_done != prog->percent_done) { - prog->percent_done = percent_done; - if (total_passes > 1) { - fprintf(stderr, "\rPass %d/%d: %3d%% ", - prog->pub.completed_passes + prog->completed_extra_passes + 1, - total_passes, percent_done); - } else { - fprintf(stderr, "\r %3d%% ", percent_done); - } - fflush(stderr); - } -} - - -GLOBAL(void) -start_progress_monitor (j_common_ptr cinfo, cd_progress_ptr progress) -{ - /* Enable progress display, unless trace output is on */ - if (cinfo->err->trace_level == 0) { - progress->pub.progress_monitor = progress_monitor; - progress->completed_extra_passes = 0; - progress->total_extra_passes = 0; - progress->percent_done = -1; - cinfo->progress = &progress->pub; - } -} - - -GLOBAL(void) -end_progress_monitor (j_common_ptr cinfo) -{ - /* Clear away progress display */ - if (cinfo->err->trace_level == 0) { - fprintf(stderr, "\r \r"); - fflush(stderr); - } -} - -#endif - - -/* - * Case-insensitive matching of possibly-abbreviated keyword switches. - * keyword is the constant keyword (must be lower case already), - * minchars is length of minimum legal abbreviation. - */ - -GLOBAL(boolean) -keymatch (char * arg, const char * keyword, int minchars) -{ - register int ca, ck; - register int nmatched = 0; - - while ((ca = *arg++) != '\0') { - if ((ck = *keyword++) == '\0') - return FALSE; /* arg longer than keyword, no good */ - if (isupper(ca)) /* force arg to lcase (assume ck is already) */ - ca = tolower(ca); - if (ca != ck) - return FALSE; /* no good */ - nmatched++; /* count matched characters */ - } - /* reached end of argument; fail if it's too short for unique abbrev */ - if (nmatched < minchars) - return FALSE; - return TRUE; /* A-OK */ -} - - -/* - * Routines to establish binary I/O mode for stdin and stdout. - * Non-Unix systems often require some hacking to get out of text mode. - */ - -GLOBAL(FILE *) -read_stdin (void) -{ - FILE * input_file = stdin; - -#ifdef USE_SETMODE /* need to hack file mode? */ - setmode(fileno(stdin), O_BINARY); -#endif -#ifdef USE_FDOPEN /* need to re-open in binary mode? */ - if ((input_file = fdopen(fileno(stdin), READ_BINARY)) == NULL) { - fprintf(stderr, "Cannot reopen stdin\n"); - exit(EXIT_FAILURE); - } -#endif - return input_file; -} - - -GLOBAL(FILE *) -write_stdout (void) -{ - FILE * output_file = stdout; - -#ifdef USE_SETMODE /* need to hack file mode? */ - setmode(fileno(stdout), O_BINARY); -#endif -#ifdef USE_FDOPEN /* need to re-open in binary mode? */ - if ((output_file = fdopen(fileno(stdout), WRITE_BINARY)) == NULL) { - fprintf(stderr, "Cannot reopen stdout\n"); - exit(EXIT_FAILURE); - } -#endif - return output_file; -} diff --git a/jpg/cdjpeg.h b/jpg/cdjpeg.h deleted file mode 100644 index ed024ac..0000000 --- a/jpg/cdjpeg.h +++ /dev/null @@ -1,187 +0,0 @@ -/* - * cdjpeg.h - * - * Copyright (C) 1994-1997, Thomas G. Lane. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file contains common declarations for the sample applications - * cjpeg and djpeg. It is NOT used by the core JPEG library. - */ - -#define JPEG_CJPEG_DJPEG /* define proper options in jconfig.h */ -#define JPEG_INTERNAL_OPTIONS /* cjpeg.c,djpeg.c need to see xxx_SUPPORTED */ -#include "jinclude.h" -#include "jpeglib.h" -#include "jerror.h" /* get library error codes too */ -#include "cderror.h" /* get application-specific error codes */ - - -/* - * Object interface for cjpeg's source file decoding modules - */ - -typedef struct cjpeg_source_struct * cjpeg_source_ptr; - -struct cjpeg_source_struct { - JMETHOD(void, start_input, (j_compress_ptr cinfo, - cjpeg_source_ptr sinfo)); - JMETHOD(JDIMENSION, get_pixel_rows, (j_compress_ptr cinfo, - cjpeg_source_ptr sinfo)); - JMETHOD(void, finish_input, (j_compress_ptr cinfo, - cjpeg_source_ptr sinfo)); - - FILE *input_file; - - JSAMPARRAY buffer; - JDIMENSION buffer_height; -}; - - -/* - * Object interface for djpeg's output file encoding modules - */ - -typedef struct djpeg_dest_struct * djpeg_dest_ptr; - -struct djpeg_dest_struct { - /* start_output is called after jpeg_start_decompress finishes. - * The color map will be ready at this time, if one is needed. - */ - JMETHOD(void, start_output, (j_decompress_ptr cinfo, - djpeg_dest_ptr dinfo)); - /* Emit the specified number of pixel rows from the buffer. */ - JMETHOD(void, put_pixel_rows, (j_decompress_ptr cinfo, - djpeg_dest_ptr dinfo, - JDIMENSION rows_supplied)); - /* Finish up at the end of the image. */ - JMETHOD(void, finish_output, (j_decompress_ptr cinfo, - djpeg_dest_ptr dinfo)); - - /* Target file spec; filled in by djpeg.c after object is created. */ - FILE * output_file; - - /* Output pixel-row buffer. Created by module init or start_output. - * Width is cinfo->output_width * cinfo->output_components; - * height is buffer_height. - */ - JSAMPARRAY buffer; - JDIMENSION buffer_height; -}; - - -/* - * cjpeg/djpeg may need to perform extra passes to convert to or from - * the source/destination file format. The JPEG library does not know - * about these passes, but we'd like them to be counted by the progress - * monitor. We use an expanded progress monitor object to hold the - * additional pass count. - */ - -struct cdjpeg_progress_mgr { - struct jpeg_progress_mgr pub; /* fields known to JPEG library */ - int completed_extra_passes; /* extra passes completed */ - int total_extra_passes; /* total extra */ - /* last printed percentage stored here to avoid multiple printouts */ - int percent_done; -}; - -typedef struct cdjpeg_progress_mgr * cd_progress_ptr; - - -/* Short forms of external names for systems with brain-damaged linkers. */ - -#ifdef NEED_SHORT_EXTERNAL_NAMES -#define jinit_read_bmp jIRdBMP -#define jinit_write_bmp jIWrBMP -#define jinit_read_gif jIRdGIF -#define jinit_write_gif jIWrGIF -#define jinit_read_ppm jIRdPPM -#define jinit_write_ppm jIWrPPM -#define jinit_read_rle jIRdRLE -#define jinit_write_rle jIWrRLE -#define jinit_read_targa jIRdTarga -#define jinit_write_targa jIWrTarga -#define read_quant_tables RdQTables -#define read_scan_script RdScnScript -#define set_quality_ratings SetQRates -#define set_quant_slots SetQSlots -#define set_sample_factors SetSFacts -#define read_color_map RdCMap -#define enable_signal_catcher EnSigCatcher -#define start_progress_monitor StProgMon -#define end_progress_monitor EnProgMon -#define read_stdin RdStdin -#define write_stdout WrStdout -#endif /* NEED_SHORT_EXTERNAL_NAMES */ - -/* Module selection routines for I/O modules. */ - -EXTERN(cjpeg_source_ptr) jinit_read_bmp JPP((j_compress_ptr cinfo)); -EXTERN(djpeg_dest_ptr) jinit_write_bmp JPP((j_decompress_ptr cinfo, - boolean is_os2)); -EXTERN(cjpeg_source_ptr) jinit_read_gif JPP((j_compress_ptr cinfo)); -EXTERN(djpeg_dest_ptr) jinit_write_gif JPP((j_decompress_ptr cinfo)); -EXTERN(cjpeg_source_ptr) jinit_read_ppm JPP((j_compress_ptr cinfo)); -EXTERN(djpeg_dest_ptr) jinit_write_ppm JPP((j_decompress_ptr cinfo)); -EXTERN(cjpeg_source_ptr) jinit_read_rle JPP((j_compress_ptr cinfo)); -EXTERN(djpeg_dest_ptr) jinit_write_rle JPP((j_decompress_ptr cinfo)); -EXTERN(cjpeg_source_ptr) jinit_read_targa JPP((j_compress_ptr cinfo)); -EXTERN(djpeg_dest_ptr) jinit_write_targa JPP((j_decompress_ptr cinfo)); - -/* cjpeg support routines (in rdswitch.c) */ - -EXTERN(boolean) read_quant_tables JPP((j_compress_ptr cinfo, char * filename, - boolean force_baseline)); -EXTERN(boolean) read_scan_script JPP((j_compress_ptr cinfo, char * filename)); -EXTERN(boolean) set_quality_ratings JPP((j_compress_ptr cinfo, char *arg, - boolean force_baseline)); -EXTERN(boolean) set_quant_slots JPP((j_compress_ptr cinfo, char *arg)); -EXTERN(boolean) set_sample_factors JPP((j_compress_ptr cinfo, char *arg)); - -/* djpeg support routines (in rdcolmap.c) */ - -EXTERN(void) read_color_map JPP((j_decompress_ptr cinfo, FILE * infile)); - -/* common support routines (in cdjpeg.c) */ - -EXTERN(void) enable_signal_catcher JPP((j_common_ptr cinfo)); -EXTERN(void) start_progress_monitor JPP((j_common_ptr cinfo, - cd_progress_ptr progress)); -EXTERN(void) end_progress_monitor JPP((j_common_ptr cinfo)); -EXTERN(boolean) keymatch JPP((char * arg, const char * keyword, int minchars)); -EXTERN(FILE *) read_stdin JPP((void)); -EXTERN(FILE *) write_stdout JPP((void)); - -/* miscellaneous useful macros */ - -#ifdef DONT_USE_B_MODE /* define mode parameters for fopen() */ -#define READ_BINARY "r" -#define WRITE_BINARY "w" -#else -#ifdef VMS /* VMS is very nonstandard */ -#define READ_BINARY "rb", "ctx=stm" -#define WRITE_BINARY "wb", "ctx=stm" -#else /* standard ANSI-compliant case */ -#define READ_BINARY "rb" -#define WRITE_BINARY "wb" -#endif -#endif - -#ifndef EXIT_FAILURE /* define exit() codes if not provided */ -#define EXIT_FAILURE 1 -#endif -#ifndef EXIT_SUCCESS -#ifdef VMS -#define EXIT_SUCCESS 1 /* VMS is very nonstandard */ -#else -#define EXIT_SUCCESS 0 -#endif -#endif -#ifndef EXIT_WARNING -#ifdef VMS -#define EXIT_WARNING 1 /* VMS is very nonstandard */ -#else -#define EXIT_WARNING 2 -#endif -#endif diff --git a/jpg/change.log b/jpg/change.log deleted file mode 100644 index 729bca6..0000000 --- a/jpg/change.log +++ /dev/null @@ -1,346 +0,0 @@ -CHANGE LOG for Independent JPEG Group's JPEG software - - -Version 8d 15-Jan-2012 ------------------------ - -Add cjpeg -rgb option to create RGB JPEG files. -Using this switch suppresses the conversion from RGB -colorspace input to the default YCbCr JPEG colorspace. -This feature allows true lossless JPEG coding of RGB color images. -The recommended command for this purpose is currently -cjpeg -rgb -block 1 -arithmetic. -SmartScale capable decoder (introduced with IJG JPEG 8) required. -Thank to Michael Koch for the initial suggestion. - -Add option to disable the region adjustment in the transupp crop code. -Thank to Jeffrey Friedl for the suggestion. - -Thank to Richard Jones and Edd Dawson for various minor corrections. - -Thank to Akim Demaille for configure.ac cleanup. - - -Version 8c 16-Jan-2011 ------------------------ - -Add option to compression library and cjpeg (-block N) to use -different DCT block size. -All N from 1 to 16 are possible. Default is 8 (baseline format). -Larger values produce higher compression, -smaller values produce higher quality. -SmartScale capable decoder (introduced with IJG JPEG 8) required. - - -Version 8b 16-May-2010 ------------------------ - -Repair problem in new memory source manager with corrupt JPEG data. -Thank to Ted Campbell and Samuel Chun for the report. - -Repair problem in Makefile.am test target. -Thank to anonymous user for the report. - -Support MinGW installation with automatic configure. -Thank to Volker Grabsch for the suggestion. - - -Version 8a 28-Feb-2010 ------------------------ - -Writing tables-only datastreams via jpeg_write_tables works again. - -Support 32-bit BMPs (RGB image with Alpha channel) for read in cjpeg. -Thank to Brett Blackham for the suggestion. - -Improve accuracy in floating point IDCT calculation. -Thank to Robert Hooke for the hint. - - -Version 8 10-Jan-2010 ----------------------- - -jpegtran now supports the same -scale option as djpeg for "lossless" resize. -An implementation of the JPEG SmartScale extension is required for this -feature. A (draft) specification of the JPEG SmartScale extension is -available as a contributed document at ITU and ISO. Revision 2 or later -of the document is required (latest document version is Revision 3). -The SmartScale extension will enable more features beside lossless resize -in future implementations, as described in the document (new compression -options). - -Add sanity check in BMP reader module to avoid cjpeg crash for empty input -image (thank to Isaev Ildar of ISP RAS, Moscow, RU for reporting this error). - -Add data source and destination managers for read from and write to -memory buffers. New API functions jpeg_mem_src and jpeg_mem_dest. -Thank to Roberto Boni from Italy for the suggestion. - - -Version 7 27-Jun-2009 ----------------------- - -New scaled DCTs implemented. -djpeg now supports scalings N/8 with all N from 1 to 16. -cjpeg now supports scalings 8/N with all N from 1 to 16. -Scaled DCTs with size larger than 8 are now also used for resolving the -common 2x2 chroma subsampling case without additional spatial resampling. -Separate spatial resampling for those kind of files is now only necessary -for N>8 scaling cases. -Furthermore, separate scaled DCT functions are provided for direct resolving -of the common asymmetric subsampling cases (2x1 and 1x2) without additional -spatial resampling. - -cjpeg -quality option has been extended for support of separate quality -settings for luminance and chrominance (or in general, for every provided -quantization table slot). -New API function jpeg_default_qtables() and q_scale_factor array in library. - -Added -nosmooth option to cjpeg, complementary to djpeg. -New variable "do_fancy_downsampling" in library, complement to fancy -upsampling. Fancy upsampling now uses direct DCT scaling with sizes -larger than 8. The old method is not reversible and has been removed. - -Support arithmetic entropy encoding and decoding. -Added files jaricom.c, jcarith.c, jdarith.c. - -Straighten the file structure: -Removed files jidctred.c, jcphuff.c, jchuff.h, jdphuff.c, jdhuff.h. - -jpegtran has a new "lossless" cropping feature. - -Implement -perfect option in jpegtran, new API function -jtransform_perfect_transform() in transupp. (DP 204_perfect.dpatch) - -Better error messages for jpegtran fopen failure. -(DP 203_jpegtran_errmsg.dpatch) - -Fix byte order issue with 16bit PPM/PGM files in rdppm.c/wrppm.c: -according to Netpbm, the de facto standard implementation of the PNM formats, -the most significant byte is first. (DP 203_rdppm.dpatch) - -Add -raw option to rdjpgcom not to mangle the output. -(DP 205_rdjpgcom_raw.dpatch) - -Make rdjpgcom locale aware. (DP 201_rdjpgcom_locale.dpatch) - -Add extern "C" to jpeglib.h. -This avoids the need to put extern "C" { ... } around #include "jpeglib.h" -in your C++ application. Defining the symbol DONT_USE_EXTERN_C in the -configuration prevents this. (DP 202_jpeglib.h_c++.dpatch) - - -Version 6b 27-Mar-1998 ------------------------ - -jpegtran has new features for lossless image transformations (rotation -and flipping) as well as "lossless" reduction to grayscale. - -jpegtran now copies comments by default; it has a -copy switch to enable -copying all APPn blocks as well, or to suppress comments. (Formerly it -always suppressed comments and APPn blocks.) jpegtran now also preserves -JFIF version and resolution information. - -New decompressor library feature: COM and APPn markers found in the input -file can be saved in memory for later use by the application. (Before, -you had to code this up yourself with a custom marker processor.) - -There is an unused field "void * client_data" now in compress and decompress -parameter structs; this may be useful in some applications. - -JFIF version number information is now saved by the decoder and accepted by -the encoder. jpegtran uses this to copy the source file's version number, -to ensure "jpegtran -copy all" won't create bogus files that contain JFXX -extensions but claim to be version 1.01. Applications that generate their -own JFXX extension markers also (finally) have a supported way to cause the -encoder to emit JFIF version number 1.02. - -djpeg's trace mode reports JFIF 1.02 thumbnail images as such, rather -than as unknown APP0 markers. - -In -verbose mode, djpeg and rdjpgcom will try to print the contents of -APP12 markers as text. Some digital cameras store useful text information -in APP12 markers. - -Handling of truncated data streams is more robust: blocks beyond the one in -which the error occurs will be output as uniform gray, or left unchanged -if decoding a progressive JPEG. The appearance no longer depends on the -Huffman tables being used. - -Huffman tables are checked for validity much more carefully than before. - -To avoid the Unisys LZW patent, djpeg's GIF output capability has been -changed to produce "uncompressed GIFs", and cjpeg's GIF input capability -has been removed altogether. We're not happy about it either, but there -seems to be no good alternative. - -The configure script now supports building libjpeg as a shared library -on many flavors of Unix (all the ones that GNU libtool knows how to -build shared libraries for). Use "./configure --enable-shared" to -try this out. - -New jconfig file and makefiles for Microsoft Visual C++ and Developer Studio. -Also, a jconfig file and a build script for Metrowerks CodeWarrior -on Apple Macintosh. makefile.dj has been updated for DJGPP v2, and there -are miscellaneous other minor improvements in the makefiles. - -jmemmac.c now knows how to create temporary files following Mac System 7 -conventions. - -djpeg's -map switch is now able to read raw-format PPM files reliably. - -cjpeg -progressive -restart no longer generates any unnecessary DRI markers. - -Multiple calls to jpeg_simple_progression for a single JPEG object -no longer leak memory. - - -Version 6a 7-Feb-96 --------------------- - -Library initialization sequence modified to detect version mismatches -and struct field packing mismatches between library and calling application. -This change requires applications to be recompiled, but does not require -any application source code change. - -All routine declarations changed to the style "GLOBAL(type) name ...", -that is, GLOBAL, LOCAL, METHODDEF, EXTERN are now macros taking the -routine's return type as an argument. This makes it possible to add -Microsoft-style linkage keywords to all the routines by changing just -these macros. Note that any application code that was using these macros -will have to be changed. - -DCT coefficient quantization tables are now stored in normal array order -rather than zigzag order. Application code that calls jpeg_add_quant_table, -or otherwise manipulates quantization tables directly, will need to be -changed. If you need to make such code work with either older or newer -versions of the library, a test like "#if JPEG_LIB_VERSION >= 61" is -recommended. - -djpeg's trace capability now dumps DQT tables in natural order, not zigzag -order. This allows the trace output to be made into a "-qtables" file -more easily. - -New system-dependent memory manager module for use on Apple Macintosh. - -Fix bug in cjpeg's -smooth option: last one or two scanlines would be -duplicates of the prior line unless the image height mod 16 was 1 or 2. - -Repair minor problems in VMS, BCC, MC6 makefiles. - -New configure script based on latest GNU Autoconf. - -Correct the list of include files needed by MetroWerks C for ccommand(). - -Numerous small documentation updates. - - -Version 6 2-Aug-95 -------------------- - -Progressive JPEG support: library can read and write full progressive JPEG -files. A "buffered image" mode supports incremental decoding for on-the-fly -display of progressive images. Simply recompiling an existing IJG-v5-based -decoder with v6 should allow it to read progressive files, though of course -without any special progressive display. - -New "jpegtran" application performs lossless transcoding between different -JPEG formats; primarily, it can be used to convert baseline to progressive -JPEG and vice versa. In support of jpegtran, the library now allows lossless -reading and writing of JPEG files as DCT coefficient arrays. This ability -may be of use in other applications. - -Notes for programmers: -* We changed jpeg_start_decompress() to be able to suspend; this makes all -decoding modes available to suspending-input applications. However, -existing applications that use suspending input will need to be changed -to check the return value from jpeg_start_decompress(). You don't need to -do anything if you don't use a suspending data source. -* We changed the interface to the virtual array routines: access_virt_array -routines now take a count of the number of rows to access this time. The -last parameter to request_virt_array routines is now interpreted as the -maximum number of rows that may be accessed at once, but not necessarily -the height of every access. - - -Version 5b 15-Mar-95 ---------------------- - -Correct bugs with grayscale images having v_samp_factor > 1. - -jpeg_write_raw_data() now supports output suspension. - -Correct bugs in "configure" script for case of compiling in -a directory other than the one containing the source files. - -Repair bug in jquant1.c: sometimes didn't use as many colors as it could. - -Borland C makefile and jconfig file work under either MS-DOS or OS/2. - -Miscellaneous improvements to documentation. - - -Version 5a 7-Dec-94 --------------------- - -Changed color conversion roundoff behavior so that grayscale values are -represented exactly. (This causes test image files to change.) - -Make ordered dither use 16x16 instead of 4x4 pattern for a small quality -improvement. - -New configure script based on latest GNU Autoconf. -Fix configure script to handle CFLAGS correctly. -Rename *.auto files to *.cfg, so that configure script still works if -file names have been truncated for DOS. - -Fix bug in rdbmp.c: didn't allow for extra data between header and image. - -Modify rdppm.c/wrppm.c to handle 2-byte raw PPM/PGM formats for 12-bit data. - -Fix several bugs in rdrle.c. - -NEED_SHORT_EXTERNAL_NAMES option was broken. - -Revise jerror.h/jerror.c for more flexibility in message table. - -Repair oversight in jmemname.c NO_MKTEMP case: file could be there -but unreadable. - - -Version 5 24-Sep-94 --------------------- - -Version 5 represents a nearly complete redesign and rewrite of the IJG -software. Major user-visible changes include: - * Automatic configuration simplifies installation for most Unix systems. - * A range of speed vs. image quality tradeoffs are supported. - This includes resizing of an image during decompression: scaling down - by a factor of 1/2, 1/4, or 1/8 is handled very efficiently. - * New programs rdjpgcom and wrjpgcom allow insertion and extraction - of text comments in a JPEG file. - -The application programmer's interface to the library has changed completely. -Notable improvements include: - * We have eliminated the use of callback routines for handling the - uncompressed image data. The application now sees the library as a - set of routines that it calls to read or write image data on a - scanline-by-scanline basis. - * The application image data is represented in a conventional interleaved- - pixel format, rather than as a separate array for each color channel. - This can save a copying step in many programs. - * The handling of compressed data has been cleaned up: the application can - supply routines to source or sink the compressed data. It is possible to - suspend processing on source/sink buffer overrun, although this is not - supported in all operating modes. - * All static state has been eliminated from the library, so that multiple - instances of compression or decompression can be active concurrently. - * JPEG abbreviated datastream formats are supported, ie, quantization and - Huffman tables can be stored separately from the image data. - * And not only that, but the documentation of the library has improved - considerably! - - -The last widely used release before the version 5 rewrite was version 4A of -18-Feb-93. Change logs before that point have been discarded, since they -are not of much interest after the rewrite. diff --git a/jpg/cjpeg.1 b/jpg/cjpeg.1 deleted file mode 100644 index c10f971..0000000 --- a/jpg/cjpeg.1 +++ /dev/null @@ -1,348 +0,0 @@ -.TH CJPEG 1 "28 August 2011" -.SH NAME -cjpeg \- compress an image file to a JPEG file -.SH SYNOPSIS -.B cjpeg -[ -.I options -] -[ -.I filename -] -.LP -.SH DESCRIPTION -.LP -.B cjpeg -compresses the named image file, or the standard input if no file is -named, and produces a JPEG/JFIF file on the standard output. -The currently supported input file formats are: PPM (PBMPLUS color -format), PGM (PBMPLUS gray-scale format), BMP, Targa, and RLE (Utah Raster -Toolkit format). (RLE is supported only if the URT library is available.) -.SH OPTIONS -All switch names may be abbreviated; for example, -.B \-grayscale -may be written -.B \-gray -or -.BR \-gr . -Most of the "basic" switches can be abbreviated to as little as one letter. -Upper and lower case are equivalent (thus -.B \-BMP -is the same as -.BR \-bmp ). -British spellings are also accepted (e.g., -.BR \-greyscale ), -though for brevity these are not mentioned below. -.PP -The basic switches are: -.TP -.BI \-quality " N[,...]" -Scale quantization tables to adjust image quality. Quality is 0 (worst) to -100 (best); default is 75. (See below for more info.) -.TP -.B \-grayscale -Create monochrome JPEG file from color input. Be sure to use this switch when -compressing a grayscale BMP file, because -.B cjpeg -isn't bright enough to notice whether a BMP file uses only shades of gray. -By saying -.BR \-grayscale , -you'll get a smaller JPEG file that takes less time to process. -.TP -.B \-rgb -Create RGB JPEG file. -Using this switch suppresses the conversion from RGB -colorspace input to the default YCbCr JPEG colorspace. -Use this switch in combination with the -.BI \-block " N" -switch (see below) for lossless JPEG coding. -.TP -.B \-optimize -Perform optimization of entropy encoding parameters. Without this, default -encoding parameters are used. -.B \-optimize -usually makes the JPEG file a little smaller, but -.B cjpeg -runs somewhat slower and needs much more memory. Image quality and speed of -decompression are unaffected by -.BR \-optimize . -.TP -.B \-progressive -Create progressive JPEG file (see below). -.TP -.BI \-scale " M/N" -Scale the output image by a factor M/N. Currently supported scale factors are -M/N with all N from 1 to 16, where M is the destination DCT size, which is 8 -by default (see -.BI \-block " N" -switch below). -.TP -.B \-targa -Input file is Targa format. Targa files that contain an "identification" -field will not be automatically recognized by -.BR cjpeg ; -for such files you must specify -.B \-targa -to make -.B cjpeg -treat the input as Targa format. -For most Targa files, you won't need this switch. -.PP -The -.B \-quality -switch lets you trade off compressed file size against quality of the -reconstructed image: the higher the quality setting, the larger the JPEG file, -and the closer the output image will be to the original input. Normally you -want to use the lowest quality setting (smallest file) that decompresses into -something visually indistinguishable from the original image. For this -purpose the quality setting should be between 50 and 95; the default of 75 is -often about right. If you see defects at -.B \-quality -75, then go up 5 or 10 counts at a time until you are happy with the output -image. (The optimal setting will vary from one image to another.) -.PP -.B \-quality -100 will generate a quantization table of all 1's, minimizing loss in the -quantization step (but there is still information loss in subsampling, as well -as roundoff error). This setting is mainly of interest for experimental -purposes. Quality values above about 95 are -.B not -recommended for normal use; the compressed file size goes up dramatically for -hardly any gain in output image quality. -.PP -In the other direction, quality values below 50 will produce very small files -of low image quality. Settings around 5 to 10 might be useful in preparing an -index of a large image library, for example. Try -.B \-quality -2 (or so) for some amusing Cubist effects. (Note: quality -values below about 25 generate 2-byte quantization tables, which are -considered optional in the JPEG standard. -.B cjpeg -emits a warning message when you give such a quality value, because some -other JPEG programs may be unable to decode the resulting file. Use -.B \-baseline -if you need to ensure compatibility at low quality values.) -.PP -The -.B \-quality -option has been extended in IJG version 7 for support of separate quality -settings for luminance and chrominance (or in general, for every provided -quantization table slot). This feature is useful for high-quality -applications which cannot accept the damage of color data by coarse -subsampling settings. You can now easily reduce the color data amount more -smoothly with finer control without separate subsampling. The resulting file -is fully compliant with standard JPEG decoders. -Note that the -.B \-quality -ratings refer to the quantization table slots, and that the last value is -replicated if there are more q-table slots than parameters. The default -q-table slots are 0 for luminance and 1 for chrominance with default tables as -given in the JPEG standard. This is compatible with the old behaviour in case -that only one parameter is given, which is then used for both luminance and -chrominance (slots 0 and 1). More or custom quantization tables can be set -with -.B \-qtables -and assigned to components with -.B \-qslots -parameter (see the "wizard" switches below). -.B Caution: -You must explicitly add -.BI \-sample " 1x1" -for efficient separate color -quality selection, since the default value used by library is 2x2! -.PP -The -.B \-progressive -switch creates a "progressive JPEG" file. In this type of JPEG file, the data -is stored in multiple scans of increasing quality. If the file is being -transmitted over a slow communications link, the decoder can use the first -scan to display a low-quality image very quickly, and can then improve the -display with each subsequent scan. The final image is exactly equivalent to a -standard JPEG file of the same quality setting, and the total file size is -about the same --- often a little smaller. -.PP -Switches for advanced users: -.TP -.B \-arithmetic -Use arithmetic coding. -.B Caution: -arithmetic coded JPEG is not yet widely implemented, so many decoders will be -unable to view an arithmetic coded JPEG file at all. -.TP -.BI \-block " N" -Set DCT block size. All N from 1 to 16 are possible. -Default is 8 (baseline format). -Larger values produce higher compression, -smaller values produce higher quality -(exact DCT stage possible with 1 or 2; with the default quality of 75 and -default Luminance qtable the DCT+Quantization stage is lossless for N=1). -.B Caution: -An implementation of the JPEG SmartScale extension is required for this -feature. SmartScale enabled JPEG is not yet widely implemented, so many -decoders will be unable to view a SmartScale extended JPEG file at all. -.TP -.B \-dct int -Use integer DCT method (default). -.TP -.B \-dct fast -Use fast integer DCT (less accurate). -.TP -.B \-dct float -Use floating-point DCT method. -The float method is very slightly more accurate than the int method, but is -much slower unless your machine has very fast floating-point hardware. Also -note that results of the floating-point method may vary slightly across -machines, while the integer methods should give the same results everywhere. -The fast integer method is much less accurate than the other two. -.TP -.B \-nosmooth -Don't use high-quality downsampling. -.TP -.BI \-restart " N" -Emit a JPEG restart marker every N MCU rows, or every N MCU blocks if "B" is -attached to the number. -.B \-restart 0 -(the default) means no restart markers. -.TP -.BI \-smooth " N" -Smooth the input image to eliminate dithering noise. N, ranging from 1 to -100, indicates the strength of smoothing. 0 (the default) means no smoothing. -.TP -.BI \-maxmemory " N" -Set limit for amount of memory to use in processing large images. Value is -in thousands of bytes, or millions of bytes if "M" is attached to the -number. For example, -.B \-max 4m -selects 4000000 bytes. If more space is needed, temporary files will be used. -.TP -.BI \-outfile " name" -Send output image to the named file, not to standard output. -.TP -.B \-verbose -Enable debug printout. More -.BR \-v 's -give more output. Also, version information is printed at startup. -.TP -.B \-debug -Same as -.BR \-verbose . -.PP -The -.B \-restart -option inserts extra markers that allow a JPEG decoder to resynchronize after -a transmission error. Without restart markers, any damage to a compressed -file will usually ruin the image from the point of the error to the end of the -image; with restart markers, the damage is usually confined to the portion of -the image up to the next restart marker. Of course, the restart markers -occupy extra space. We recommend -.B \-restart 1 -for images that will be transmitted across unreliable networks such as Usenet. -.PP -The -.B \-smooth -option filters the input to eliminate fine-scale noise. This is often useful -when converting dithered images to JPEG: a moderate smoothing factor of 10 to -50 gets rid of dithering patterns in the input file, resulting in a smaller -JPEG file and a better-looking image. Too large a smoothing factor will -visibly blur the image, however. -.PP -Switches for wizards: -.TP -.B \-baseline -Force baseline-compatible quantization tables to be generated. This clamps -quantization values to 8 bits even at low quality settings. (This switch is -poorly named, since it does not ensure that the output is actually baseline -JPEG. For example, you can use -.B \-baseline -and -.B \-progressive -together.) -.TP -.BI \-qtables " file" -Use the quantization tables given in the specified text file. -.TP -.BI \-qslots " N[,...]" -Select which quantization table to use for each color component. -.TP -.BI \-sample " HxV[,...]" -Set JPEG sampling factors for each color component. -.TP -.BI \-scans " file" -Use the scan script given in the specified text file. -.PP -The "wizard" switches are intended for experimentation with JPEG. If you -don't know what you are doing, \fBdon't use them\fR. These switches are -documented further in the file wizard.txt. -.SH EXAMPLES -.LP -This example compresses the PPM file foo.ppm with a quality factor of -60 and saves the output as foo.jpg: -.IP -.B cjpeg \-quality -.I 60 foo.ppm -.B > -.I foo.jpg -.SH HINTS -Color GIF files are not the ideal input for JPEG; JPEG is really intended for -compressing full-color (24-bit) images. In particular, don't try to convert -cartoons, line drawings, and other images that have only a few distinct -colors. GIF works great on these, JPEG does not. If you want to convert a -GIF to JPEG, you should experiment with -.BR cjpeg 's -.B \-quality -and -.B \-smooth -options to get a satisfactory conversion. -.B \-smooth 10 -or so is often helpful. -.PP -Avoid running an image through a series of JPEG compression/decompression -cycles. Image quality loss will accumulate; after ten or so cycles the image -may be noticeably worse than it was after one cycle. It's best to use a -lossless format while manipulating an image, then convert to JPEG format when -you are ready to file the image away. -.PP -The -.B \-optimize -option to -.B cjpeg -is worth using when you are making a "final" version for posting or archiving. -It's also a win when you are using low quality settings to make very small -JPEG files; the percentage improvement is often a lot more than it is on -larger files. (At present, -.B \-optimize -mode is always selected when generating progressive JPEG files.) -.SH ENVIRONMENT -.TP -.B JPEGMEM -If this environment variable is set, its value is the default memory limit. -The value is specified as described for the -.B \-maxmemory -switch. -.B JPEGMEM -overrides the default value specified when the program was compiled, and -itself is overridden by an explicit -.BR \-maxmemory . -.SH SEE ALSO -.BR djpeg (1), -.BR jpegtran (1), -.BR rdjpgcom (1), -.BR wrjpgcom (1) -.br -.BR ppm (5), -.BR pgm (5) -.br -Wallace, Gregory K. "The JPEG Still Picture Compression Standard", -Communications of the ACM, April 1991 (vol. 34, no. 4), pp. 30-44. -.SH AUTHOR -Independent JPEG Group -.SH BUGS -GIF input files are no longer supported, to avoid the Unisys LZW patent. -(Conversion of GIF files to JPEG is usually a bad idea anyway.) -.PP -Not all variants of BMP and Targa file formats are supported. -.PP -The -.B \-targa -switch is not a bug, it's a feature. (It would be a bug if the Targa format -designers had not been clueless.) diff --git a/jpg/cjpeg.c b/jpg/cjpeg.c deleted file mode 100644 index 9a9a09a..0000000 --- a/jpg/cjpeg.c +++ /dev/null @@ -1,643 +0,0 @@ -/* - * cjpeg.c - * - * Copyright (C) 1991-1998, Thomas G. Lane. - * Modified 2003-2011 by Guido Vollbeding. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file contains a command-line user interface for the JPEG compressor. - * It should work on any system with Unix- or MS-DOS-style command lines. - * - * Two different command line styles are permitted, depending on the - * compile-time switch TWO_FILE_COMMANDLINE: - * cjpeg [options] inputfile outputfile - * cjpeg [options] [inputfile] - * In the second style, output is always to standard output, which you'd - * normally redirect to a file or pipe to some other program. Input is - * either from a named file or from standard input (typically redirected). - * The second style is convenient on Unix but is unhelpful on systems that - * don't support pipes. Also, you MUST use the first style if your system - * doesn't do binary I/O to stdin/stdout. - * To simplify script writing, the "-outfile" switch is provided. The syntax - * cjpeg [options] -outfile outputfile inputfile - * works regardless of which command line style is used. - */ - -#include "cdjpeg.h" /* Common decls for cjpeg/djpeg applications */ -#include "jversion.h" /* for version message */ - -#ifdef USE_CCOMMAND /* command-line reader for Macintosh */ -#ifdef __MWERKS__ -#include /* Metrowerks needs this */ -#include /* ... and this */ -#endif -#ifdef THINK_C -#include /* Think declares it here */ -#endif -#endif - - -/* Create the add-on message string table. */ - -#define JMESSAGE(code,string) string , - -static const char * const cdjpeg_message_table[] = { -#include "cderror.h" - NULL -}; - - -/* - * This routine determines what format the input file is, - * and selects the appropriate input-reading module. - * - * To determine which family of input formats the file belongs to, - * we may look only at the first byte of the file, since C does not - * guarantee that more than one character can be pushed back with ungetc. - * Looking at additional bytes would require one of these approaches: - * 1) assume we can fseek() the input file (fails for piped input); - * 2) assume we can push back more than one character (works in - * some C implementations, but unportable); - * 3) provide our own buffering (breaks input readers that want to use - * stdio directly, such as the RLE library); - * or 4) don't put back the data, and modify the input_init methods to assume - * they start reading after the start of file (also breaks RLE library). - * #1 is attractive for MS-DOS but is untenable on Unix. - * - * The most portable solution for file types that can't be identified by their - * first byte is to make the user tell us what they are. This is also the - * only approach for "raw" file types that contain only arbitrary values. - * We presently apply this method for Targa files. Most of the time Targa - * files start with 0x00, so we recognize that case. Potentially, however, - * a Targa file could start with any byte value (byte 0 is the length of the - * seldom-used ID field), so we provide a switch to force Targa input mode. - */ - -static boolean is_targa; /* records user -targa switch */ - - -LOCAL(cjpeg_source_ptr) -select_file_type (j_compress_ptr cinfo, FILE * infile) -{ - int c; - - if (is_targa) { -#ifdef TARGA_SUPPORTED - return jinit_read_targa(cinfo); -#else - ERREXIT(cinfo, JERR_TGA_NOTCOMP); -#endif - } - - if ((c = getc(infile)) == EOF) - ERREXIT(cinfo, JERR_INPUT_EMPTY); - if (ungetc(c, infile) == EOF) - ERREXIT(cinfo, JERR_UNGETC_FAILED); - - switch (c) { -#ifdef BMP_SUPPORTED - case 'B': - return jinit_read_bmp(cinfo); -#endif -#ifdef GIF_SUPPORTED - case 'G': - return jinit_read_gif(cinfo); -#endif -#ifdef PPM_SUPPORTED - case 'P': - return jinit_read_ppm(cinfo); -#endif -#ifdef RLE_SUPPORTED - case 'R': - return jinit_read_rle(cinfo); -#endif -#ifdef TARGA_SUPPORTED - case 0x00: - return jinit_read_targa(cinfo); -#endif - default: - ERREXIT(cinfo, JERR_UNKNOWN_FORMAT); - break; - } - - return NULL; /* suppress compiler warnings */ -} - - -/* - * Argument-parsing code. - * The switch parser is designed to be useful with DOS-style command line - * syntax, ie, intermixed switches and file names, where only the switches - * to the left of a given file name affect processing of that file. - * The main program in this file doesn't actually use this capability... - */ - - -static const char * progname; /* program name for error messages */ -static char * outfilename; /* for -outfile switch */ - - -LOCAL(void) -usage (void) -/* complain about bad command line */ -{ - fprintf(stderr, "usage: %s [switches] ", progname); -#ifdef TWO_FILE_COMMANDLINE - fprintf(stderr, "inputfile outputfile\n"); -#else - fprintf(stderr, "[inputfile]\n"); -#endif - - fprintf(stderr, "Switches (names may be abbreviated):\n"); - fprintf(stderr, " -quality N[,...] Compression quality (0..100; 5-95 is useful range)\n"); - fprintf(stderr, " -grayscale Create monochrome JPEG file\n"); - fprintf(stderr, " -rgb Create RGB JPEG file\n"); -#ifdef ENTROPY_OPT_SUPPORTED - fprintf(stderr, " -optimize Optimize Huffman table (smaller file, but slow compression)\n"); -#endif -#ifdef C_PROGRESSIVE_SUPPORTED - fprintf(stderr, " -progressive Create progressive JPEG file\n"); -#endif -#ifdef DCT_SCALING_SUPPORTED - fprintf(stderr, " -scale M/N Scale image by fraction M/N, eg, 1/2\n"); -#endif -#ifdef TARGA_SUPPORTED - fprintf(stderr, " -targa Input file is Targa format (usually not needed)\n"); -#endif - fprintf(stderr, "Switches for advanced users:\n"); -#ifdef C_ARITH_CODING_SUPPORTED - fprintf(stderr, " -arithmetic Use arithmetic coding\n"); -#endif -#ifdef DCT_SCALING_SUPPORTED - fprintf(stderr, " -block N DCT block size (1..16; default is 8)\n"); -#endif -#ifdef DCT_ISLOW_SUPPORTED - fprintf(stderr, " -dct int Use integer DCT method%s\n", - (JDCT_DEFAULT == JDCT_ISLOW ? " (default)" : "")); -#endif -#ifdef DCT_IFAST_SUPPORTED - fprintf(stderr, " -dct fast Use fast integer DCT (less accurate)%s\n", - (JDCT_DEFAULT == JDCT_IFAST ? " (default)" : "")); -#endif -#ifdef DCT_FLOAT_SUPPORTED - fprintf(stderr, " -dct float Use floating-point DCT method%s\n", - (JDCT_DEFAULT == JDCT_FLOAT ? " (default)" : "")); -#endif - fprintf(stderr, " -nosmooth Don't use high-quality downsampling\n"); - fprintf(stderr, " -restart N Set restart interval in rows, or in blocks with B\n"); -#ifdef INPUT_SMOOTHING_SUPPORTED - fprintf(stderr, " -smooth N Smooth dithered input (N=1..100 is strength)\n"); -#endif - fprintf(stderr, " -maxmemory N Maximum memory to use (in kbytes)\n"); - fprintf(stderr, " -outfile name Specify name for output file\n"); - fprintf(stderr, " -verbose or -debug Emit debug output\n"); - fprintf(stderr, "Switches for wizards:\n"); - fprintf(stderr, " -baseline Force baseline quantization tables\n"); - fprintf(stderr, " -qtables file Use quantization tables given in file\n"); - fprintf(stderr, " -qslots N[,...] Set component quantization tables\n"); - fprintf(stderr, " -sample HxV[,...] Set component sampling factors\n"); -#ifdef C_MULTISCAN_FILES_SUPPORTED - fprintf(stderr, " -scans file Create multi-scan JPEG per script file\n"); -#endif - exit(EXIT_FAILURE); -} - - -LOCAL(int) -parse_switches (j_compress_ptr cinfo, int argc, char **argv, - int last_file_arg_seen, boolean for_real) -/* Parse optional switches. - * Returns argv[] index of first file-name argument (== argc if none). - * Any file names with indexes <= last_file_arg_seen are ignored; - * they have presumably been processed in a previous iteration. - * (Pass 0 for last_file_arg_seen on the first or only iteration.) - * for_real is FALSE on the first (dummy) pass; we may skip any expensive - * processing. - */ -{ - int argn; - char * arg; - boolean force_baseline; - boolean simple_progressive; - char * qualityarg = NULL; /* saves -quality parm if any */ - char * qtablefile = NULL; /* saves -qtables filename if any */ - char * qslotsarg = NULL; /* saves -qslots parm if any */ - char * samplearg = NULL; /* saves -sample parm if any */ - char * scansarg = NULL; /* saves -scans parm if any */ - - /* Set up default JPEG parameters. */ - - force_baseline = FALSE; /* by default, allow 16-bit quantizers */ - simple_progressive = FALSE; - is_targa = FALSE; - outfilename = NULL; - cinfo->err->trace_level = 0; - - /* Scan command line options, adjust parameters */ - - for (argn = 1; argn < argc; argn++) { - arg = argv[argn]; - if (*arg != '-') { - /* Not a switch, must be a file name argument */ - if (argn <= last_file_arg_seen) { - outfilename = NULL; /* -outfile applies to just one input file */ - continue; /* ignore this name if previously processed */ - } - break; /* else done parsing switches */ - } - arg++; /* advance past switch marker character */ - - if (keymatch(arg, "arithmetic", 1)) { - /* Use arithmetic coding. */ -#ifdef C_ARITH_CODING_SUPPORTED - cinfo->arith_code = TRUE; -#else - fprintf(stderr, "%s: sorry, arithmetic coding not supported\n", - progname); - exit(EXIT_FAILURE); -#endif - - } else if (keymatch(arg, "baseline", 2)) { - /* Force baseline-compatible output (8-bit quantizer values). */ - force_baseline = TRUE; - - } else if (keymatch(arg, "block", 2)) { - /* Set DCT block size. */ -#if defined DCT_SCALING_SUPPORTED && JPEG_LIB_VERSION_MAJOR >= 8 && \ - (JPEG_LIB_VERSION_MAJOR > 8 || JPEG_LIB_VERSION_MINOR >= 3) - int val; - - if (++argn >= argc) /* advance to next argument */ - usage(); - if (sscanf(argv[argn], "%d", &val) != 1) - usage(); - if (val < 1 || val > 16) - usage(); - cinfo->block_size = val; -#else - fprintf(stderr, "%s: sorry, block size setting not supported\n", - progname); - exit(EXIT_FAILURE); -#endif - - } else if (keymatch(arg, "dct", 2)) { - /* Select DCT algorithm. */ - if (++argn >= argc) /* advance to next argument */ - usage(); - if (keymatch(argv[argn], "int", 1)) { - cinfo->dct_method = JDCT_ISLOW; - } else if (keymatch(argv[argn], "fast", 2)) { - cinfo->dct_method = JDCT_IFAST; - } else if (keymatch(argv[argn], "float", 2)) { - cinfo->dct_method = JDCT_FLOAT; - } else - usage(); - - } else if (keymatch(arg, "debug", 1) || keymatch(arg, "verbose", 1)) { - /* Enable debug printouts. */ - /* On first -d, print version identification */ - static boolean printed_version = FALSE; - - if (! printed_version) { - fprintf(stderr, "Independent JPEG Group's CJPEG, version %s\n%s\n", - JVERSION, JCOPYRIGHT); - printed_version = TRUE; - } - cinfo->err->trace_level++; - - } else if (keymatch(arg, "grayscale", 2) || keymatch(arg, "greyscale",2)) { - /* Force a monochrome JPEG file to be generated. */ - jpeg_set_colorspace(cinfo, JCS_GRAYSCALE); - - } else if (keymatch(arg, "rgb", 3)) { - /* Force an RGB JPEG file to be generated. */ - jpeg_set_colorspace(cinfo, JCS_RGB); - - } else if (keymatch(arg, "maxmemory", 3)) { - /* Maximum memory in Kb (or Mb with 'm'). */ - long lval; - char ch = 'x'; - - if (++argn >= argc) /* advance to next argument */ - usage(); - if (sscanf(argv[argn], "%ld%c", &lval, &ch) < 1) - usage(); - if (ch == 'm' || ch == 'M') - lval *= 1000L; - cinfo->mem->max_memory_to_use = lval * 1000L; - - } else if (keymatch(arg, "nosmooth", 3)) { - /* Suppress fancy downsampling */ - cinfo->do_fancy_downsampling = FALSE; - - } else if (keymatch(arg, "optimize", 1) || keymatch(arg, "optimise", 1)) { - /* Enable entropy parm optimization. */ -#ifdef ENTROPY_OPT_SUPPORTED - cinfo->optimize_coding = TRUE; -#else - fprintf(stderr, "%s: sorry, entropy optimization was not compiled\n", - progname); - exit(EXIT_FAILURE); -#endif - - } else if (keymatch(arg, "outfile", 4)) { - /* Set output file name. */ - if (++argn >= argc) /* advance to next argument */ - usage(); - outfilename = argv[argn]; /* save it away for later use */ - - } else if (keymatch(arg, "progressive", 1)) { - /* Select simple progressive mode. */ -#ifdef C_PROGRESSIVE_SUPPORTED - simple_progressive = TRUE; - /* We must postpone execution until num_components is known. */ -#else - fprintf(stderr, "%s: sorry, progressive output was not compiled\n", - progname); - exit(EXIT_FAILURE); -#endif - - } else if (keymatch(arg, "quality", 1)) { - /* Quality ratings (quantization table scaling factors). */ - if (++argn >= argc) /* advance to next argument */ - usage(); - qualityarg = argv[argn]; - - } else if (keymatch(arg, "qslots", 2)) { - /* Quantization table slot numbers. */ - if (++argn >= argc) /* advance to next argument */ - usage(); - qslotsarg = argv[argn]; - /* Must delay setting qslots until after we have processed any - * colorspace-determining switches, since jpeg_set_colorspace sets - * default quant table numbers. - */ - - } else if (keymatch(arg, "qtables", 2)) { - /* Quantization tables fetched from file. */ - if (++argn >= argc) /* advance to next argument */ - usage(); - qtablefile = argv[argn]; - /* We postpone actually reading the file in case -quality comes later. */ - - } else if (keymatch(arg, "restart", 1)) { - /* Restart interval in MCU rows (or in MCUs with 'b'). */ - long lval; - char ch = 'x'; - - if (++argn >= argc) /* advance to next argument */ - usage(); - if (sscanf(argv[argn], "%ld%c", &lval, &ch) < 1) - usage(); - if (lval < 0 || lval > 65535L) - usage(); - if (ch == 'b' || ch == 'B') { - cinfo->restart_interval = (unsigned int) lval; - cinfo->restart_in_rows = 0; /* else prior '-restart n' overrides me */ - } else { - cinfo->restart_in_rows = (int) lval; - /* restart_interval will be computed during startup */ - } - - } else if (keymatch(arg, "sample", 2)) { - /* Set sampling factors. */ - if (++argn >= argc) /* advance to next argument */ - usage(); - samplearg = argv[argn]; - /* Must delay setting sample factors until after we have processed any - * colorspace-determining switches, since jpeg_set_colorspace sets - * default sampling factors. - */ - - } else if (keymatch(arg, "scale", 4)) { - /* Scale the image by a fraction M/N. */ - if (++argn >= argc) /* advance to next argument */ - usage(); - if (sscanf(argv[argn], "%d/%d", - &cinfo->scale_num, &cinfo->scale_denom) != 2) - usage(); - - } else if (keymatch(arg, "scans", 4)) { - /* Set scan script. */ -#ifdef C_MULTISCAN_FILES_SUPPORTED - if (++argn >= argc) /* advance to next argument */ - usage(); - scansarg = argv[argn]; - /* We must postpone reading the file in case -progressive appears. */ -#else - fprintf(stderr, "%s: sorry, multi-scan output was not compiled\n", - progname); - exit(EXIT_FAILURE); -#endif - - } else if (keymatch(arg, "smooth", 2)) { - /* Set input smoothing factor. */ - int val; - - if (++argn >= argc) /* advance to next argument */ - usage(); - if (sscanf(argv[argn], "%d", &val) != 1) - usage(); - if (val < 0 || val > 100) - usage(); - cinfo->smoothing_factor = val; - - } else if (keymatch(arg, "targa", 1)) { - /* Input file is Targa format. */ - is_targa = TRUE; - - } else { - usage(); /* bogus switch */ - } - } - - /* Post-switch-scanning cleanup */ - - if (for_real) { - - /* Set quantization tables for selected quality. */ - /* Some or all may be overridden if -qtables is present. */ - if (qualityarg != NULL) /* process -quality if it was present */ - if (! set_quality_ratings(cinfo, qualityarg, force_baseline)) - usage(); - - if (qtablefile != NULL) /* process -qtables if it was present */ - if (! read_quant_tables(cinfo, qtablefile, force_baseline)) - usage(); - - if (qslotsarg != NULL) /* process -qslots if it was present */ - if (! set_quant_slots(cinfo, qslotsarg)) - usage(); - - if (samplearg != NULL) /* process -sample if it was present */ - if (! set_sample_factors(cinfo, samplearg)) - usage(); - -#ifdef C_PROGRESSIVE_SUPPORTED - if (simple_progressive) /* process -progressive; -scans can override */ - jpeg_simple_progression(cinfo); -#endif - -#ifdef C_MULTISCAN_FILES_SUPPORTED - if (scansarg != NULL) /* process -scans if it was present */ - if (! read_scan_script(cinfo, scansarg)) - usage(); -#endif - } - - return argn; /* return index of next arg (file name) */ -} - - -/* - * The main program. - */ - -int -main (int argc, char **argv) -{ - struct jpeg_compress_struct cinfo; - struct jpeg_error_mgr jerr; -#ifdef PROGRESS_REPORT - struct cdjpeg_progress_mgr progress; -#endif - int file_index; - cjpeg_source_ptr src_mgr; - FILE * input_file; - FILE * output_file; - JDIMENSION num_scanlines; - - /* On Mac, fetch a command line. */ -#ifdef USE_CCOMMAND - argc = ccommand(&argv); -#endif - - progname = argv[0]; - if (progname == NULL || progname[0] == 0) - progname = "cjpeg"; /* in case C library doesn't provide it */ - - /* Initialize the JPEG compression object with default error handling. */ - cinfo.err = jpeg_std_error(&jerr); - jpeg_create_compress(&cinfo); - /* Add some application-specific error messages (from cderror.h) */ - jerr.addon_message_table = cdjpeg_message_table; - jerr.first_addon_message = JMSG_FIRSTADDONCODE; - jerr.last_addon_message = JMSG_LASTADDONCODE; - - /* Now safe to enable signal catcher. */ -#ifdef NEED_SIGNAL_CATCHER - enable_signal_catcher((j_common_ptr) &cinfo); -#endif - - /* Initialize JPEG parameters. - * Much of this may be overridden later. - * In particular, we don't yet know the input file's color space, - * but we need to provide some value for jpeg_set_defaults() to work. - */ - - cinfo.in_color_space = JCS_RGB; /* arbitrary guess */ - jpeg_set_defaults(&cinfo); - - /* Scan command line to find file names. - * It is convenient to use just one switch-parsing routine, but the switch - * values read here are ignored; we will rescan the switches after opening - * the input file. - */ - - file_index = parse_switches(&cinfo, argc, argv, 0, FALSE); - -#ifdef TWO_FILE_COMMANDLINE - /* Must have either -outfile switch or explicit output file name */ - if (outfilename == NULL) { - if (file_index != argc-2) { - fprintf(stderr, "%s: must name one input and one output file\n", - progname); - usage(); - } - outfilename = argv[file_index+1]; - } else { - if (file_index != argc-1) { - fprintf(stderr, "%s: must name one input and one output file\n", - progname); - usage(); - } - } -#else - /* Unix style: expect zero or one file name */ - if (file_index < argc-1) { - fprintf(stderr, "%s: only one input file\n", progname); - usage(); - } -#endif /* TWO_FILE_COMMANDLINE */ - - /* Open the input file. */ - if (file_index < argc) { - if ((input_file = fopen(argv[file_index], READ_BINARY)) == NULL) { - fprintf(stderr, "%s: can't open %s\n", progname, argv[file_index]); - exit(EXIT_FAILURE); - } - } else { - /* default input file is stdin */ - input_file = read_stdin(); - } - - /* Open the output file. */ - if (outfilename != NULL) { - if ((output_file = fopen(outfilename, WRITE_BINARY)) == NULL) { - fprintf(stderr, "%s: can't open %s\n", progname, outfilename); - exit(EXIT_FAILURE); - } - } else { - /* default output file is stdout */ - output_file = write_stdout(); - } - -#ifdef PROGRESS_REPORT - start_progress_monitor((j_common_ptr) &cinfo, &progress); -#endif - - /* Figure out the input file format, and set up to read it. */ - src_mgr = select_file_type(&cinfo, input_file); - src_mgr->input_file = input_file; - - /* Read the input file header to obtain file size & colorspace. */ - (*src_mgr->start_input) (&cinfo, src_mgr); - - /* Now that we know input colorspace, fix colorspace-dependent defaults */ - jpeg_default_colorspace(&cinfo); - - /* Adjust default compression parameters by re-parsing the options */ - file_index = parse_switches(&cinfo, argc, argv, 0, TRUE); - - /* Specify data destination for compression */ - jpeg_stdio_dest(&cinfo, output_file); - - /* Start compressor */ - jpeg_start_compress(&cinfo, TRUE); - - /* Process data */ - while (cinfo.next_scanline < cinfo.image_height) { - num_scanlines = (*src_mgr->get_pixel_rows) (&cinfo, src_mgr); - (void) jpeg_write_scanlines(&cinfo, src_mgr->buffer, num_scanlines); - } - - /* Finish compression and release memory */ - (*src_mgr->finish_input) (&cinfo, src_mgr); - jpeg_finish_compress(&cinfo); - jpeg_destroy_compress(&cinfo); - - /* Close files, if we opened them */ - if (input_file != stdin) - fclose(input_file); - if (output_file != stdout) - fclose(output_file); - -#ifdef PROGRESS_REPORT - end_progress_monitor((j_common_ptr) &cinfo); -#endif - - /* All done. */ - exit(jerr.num_warnings ? EXIT_WARNING : EXIT_SUCCESS); - return 0; /* suppress no-return-value warnings */ -} diff --git a/jpg/ckconfig.c b/jpg/ckconfig.c deleted file mode 100644 index e658623..0000000 --- a/jpg/ckconfig.c +++ /dev/null @@ -1,402 +0,0 @@ -/* - * ckconfig.c - * - * Copyright (C) 1991-1994, Thomas G. Lane. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - */ - -/* - * This program is intended to help you determine how to configure the JPEG - * software for installation on a particular system. The idea is to try to - * compile and execute this program. If your compiler fails to compile the - * program, make changes as indicated in the comments below. Once you can - * compile the program, run it, and it will produce a "jconfig.h" file for - * your system. - * - * As a general rule, each time you try to compile this program, - * pay attention only to the *first* error message you get from the compiler. - * Many C compilers will issue lots of spurious error messages once they - * have gotten confused. Go to the line indicated in the first error message, - * and read the comments preceding that line to see what to change. - * - * Almost all of the edits you may need to make to this program consist of - * changing a line that reads "#define SOME_SYMBOL" to "#undef SOME_SYMBOL", - * or vice versa. This is called defining or undefining that symbol. - */ - - -/* First we must see if your system has the include files we need. - * We start out with the assumption that your system has all the ANSI-standard - * include files. If you get any error trying to include one of these files, - * undefine the corresponding HAVE_xxx symbol. - */ - -#define HAVE_STDDEF_H /* replace 'define' by 'undef' if error here */ -#ifdef HAVE_STDDEF_H /* next line will be skipped if you undef... */ -#include -#endif - -#define HAVE_STDLIB_H /* same thing for stdlib.h */ -#ifdef HAVE_STDLIB_H -#include -#endif - -#include /* If you ain't got this, you ain't got C. */ - -/* We have to see if your string functions are defined by - * strings.h (old BSD convention) or string.h (everybody else). - * We try the non-BSD convention first; define NEED_BSD_STRINGS - * if the compiler says it can't find string.h. - */ - -#undef NEED_BSD_STRINGS - -#ifdef NEED_BSD_STRINGS -#include -#else -#include -#endif - -/* On some systems (especially older Unix machines), type size_t is - * defined only in the include file . If you get a failure - * on the size_t test below, try defining NEED_SYS_TYPES_H. - */ - -#undef NEED_SYS_TYPES_H /* start by assuming we don't need it */ -#ifdef NEED_SYS_TYPES_H -#include -#endif - - -/* Usually type size_t is defined in one of the include files we've included - * above. If not, you'll get an error on the "typedef size_t my_size_t;" line. - * In that case, first try defining NEED_SYS_TYPES_H just above. - * If that doesn't work, you'll have to search through your system library - * to figure out which include file defines "size_t". Look for a line that - * says "typedef something-or-other size_t;". Then, change the line below - * that says "#include " to instead include the file - * you found size_t in, and define NEED_SPECIAL_INCLUDE. If you can't find - * type size_t anywhere, try replacing "#include " with - * "typedef unsigned int size_t;". - */ - -#undef NEED_SPECIAL_INCLUDE /* assume we DON'T need it, for starters */ - -#ifdef NEED_SPECIAL_INCLUDE -#include -#endif - -typedef size_t my_size_t; /* The payoff: do we have size_t now? */ - - -/* The next question is whether your compiler supports ANSI-style function - * prototypes. You need to know this in order to choose between using - * makefile.ansi and using makefile.unix. - * The #define line below is set to assume you have ANSI function prototypes. - * If you get an error in this group of lines, undefine HAVE_PROTOTYPES. - */ - -#define HAVE_PROTOTYPES - -#ifdef HAVE_PROTOTYPES -int testfunction (int arg1, int * arg2); /* check prototypes */ - -struct methods_struct { /* check method-pointer declarations */ - int (*error_exit) (char *msgtext); - int (*trace_message) (char *msgtext); - int (*another_method) (void); -}; - -int testfunction (int arg1, int * arg2) /* check definitions */ -{ - return arg2[arg1]; -} - -int test2function (void) /* check void arg list */ -{ - return 0; -} -#endif - - -/* Now we want to find out if your compiler knows what "unsigned char" means. - * If you get an error on the "unsigned char un_char;" line, - * then undefine HAVE_UNSIGNED_CHAR. - */ - -#define HAVE_UNSIGNED_CHAR - -#ifdef HAVE_UNSIGNED_CHAR -unsigned char un_char; -#endif - - -/* Now we want to find out if your compiler knows what "unsigned short" means. - * If you get an error on the "unsigned short un_short;" line, - * then undefine HAVE_UNSIGNED_SHORT. - */ - -#define HAVE_UNSIGNED_SHORT - -#ifdef HAVE_UNSIGNED_SHORT -unsigned short un_short; -#endif - - -/* Now we want to find out if your compiler understands type "void". - * If you get an error anywhere in here, undefine HAVE_VOID. - */ - -#define HAVE_VOID - -#ifdef HAVE_VOID -/* Caution: a C++ compiler will insist on complete prototypes */ -typedef void * void_ptr; /* check void * */ -#ifdef HAVE_PROTOTYPES /* check ptr to function returning void */ -typedef void (*void_func) (int a, int b); -#else -typedef void (*void_func) (); -#endif - -#ifdef HAVE_PROTOTYPES /* check void function result */ -void test3function (void_ptr arg1, void_func arg2) -#else -void test3function (arg1, arg2) - void_ptr arg1; - void_func arg2; -#endif -{ - char * locptr = (char *) arg1; /* check casting to and from void * */ - arg1 = (void *) locptr; - (*arg2) (1, 2); /* check call of fcn returning void */ -} -#endif - - -/* Now we want to find out if your compiler knows what "const" means. - * If you get an error here, undefine HAVE_CONST. - */ - -#define HAVE_CONST - -#ifdef HAVE_CONST -static const int carray[3] = {1, 2, 3}; - -#ifdef HAVE_PROTOTYPES -int test4function (const int arg1) -#else -int test4function (arg1) - const int arg1; -#endif -{ - return carray[arg1]; -} -#endif - - -/* If you get an error or warning about this structure definition, - * define INCOMPLETE_TYPES_BROKEN. - */ - -#undef INCOMPLETE_TYPES_BROKEN - -#ifndef INCOMPLETE_TYPES_BROKEN -typedef struct undefined_structure * undef_struct_ptr; -#endif - - -/* If you get an error about duplicate names, - * define NEED_SHORT_EXTERNAL_NAMES. - */ - -#undef NEED_SHORT_EXTERNAL_NAMES - -#ifndef NEED_SHORT_EXTERNAL_NAMES - -int possibly_duplicate_function () -{ - return 0; -} - -int possibly_dupli_function () -{ - return 1; -} - -#endif - - - -/************************************************************************ - * OK, that's it. You should not have to change anything beyond this - * point in order to compile and execute this program. (You might get - * some warnings, but you can ignore them.) - * When you run the program, it will make a couple more tests that it - * can do automatically, and then it will create jconfig.h and print out - * any additional suggestions it has. - ************************************************************************ - */ - - -#ifdef HAVE_PROTOTYPES -int is_char_signed (int arg) -#else -int is_char_signed (arg) - int arg; -#endif -{ - if (arg == 189) { /* expected result for unsigned char */ - return 0; /* type char is unsigned */ - } - else if (arg != -67) { /* expected result for signed char */ - printf("Hmm, it seems 'char' is not eight bits wide on your machine.\n"); - printf("I fear the JPEG software will not work at all.\n\n"); - } - return 1; /* assume char is signed otherwise */ -} - - -#ifdef HAVE_PROTOTYPES -int is_shifting_signed (long arg) -#else -int is_shifting_signed (arg) - long arg; -#endif -/* See whether right-shift on a long is signed or not. */ -{ - long res = arg >> 4; - - if (res == -0x7F7E80CL) { /* expected result for signed shift */ - return 1; /* right shift is signed */ - } - /* see if unsigned-shift hack will fix it. */ - /* we can't just test exact value since it depends on width of long... */ - res |= (~0L) << (32-4); - if (res == -0x7F7E80CL) { /* expected result now? */ - return 0; /* right shift is unsigned */ - } - printf("Right shift isn't acting as I expect it to.\n"); - printf("I fear the JPEG software will not work at all.\n\n"); - return 0; /* try it with unsigned anyway */ -} - - -#ifdef HAVE_PROTOTYPES -int main (int argc, char ** argv) -#else -int main (argc, argv) - int argc; - char ** argv; -#endif -{ - char signed_char_check = (char) (-67); - FILE *outfile; - - /* Attempt to write jconfig.h */ - if ((outfile = fopen("jconfig.h", "w")) == NULL) { - printf("Failed to write jconfig.h\n"); - return 1; - } - - /* Write out all the info */ - fprintf(outfile, "/* jconfig.h --- generated by ckconfig.c */\n"); - fprintf(outfile, "/* see jconfig.txt for explanations */\n\n"); -#ifdef HAVE_PROTOTYPES - fprintf(outfile, "#define HAVE_PROTOTYPES\n"); -#else - fprintf(outfile, "#undef HAVE_PROTOTYPES\n"); -#endif -#ifdef HAVE_UNSIGNED_CHAR - fprintf(outfile, "#define HAVE_UNSIGNED_CHAR\n"); -#else - fprintf(outfile, "#undef HAVE_UNSIGNED_CHAR\n"); -#endif -#ifdef HAVE_UNSIGNED_SHORT - fprintf(outfile, "#define HAVE_UNSIGNED_SHORT\n"); -#else - fprintf(outfile, "#undef HAVE_UNSIGNED_SHORT\n"); -#endif -#ifdef HAVE_VOID - fprintf(outfile, "/* #define void char */\n"); -#else - fprintf(outfile, "#define void char\n"); -#endif -#ifdef HAVE_CONST - fprintf(outfile, "/* #define const */\n"); -#else - fprintf(outfile, "#define const\n"); -#endif - if (is_char_signed((int) signed_char_check)) - fprintf(outfile, "#undef CHAR_IS_UNSIGNED\n"); - else - fprintf(outfile, "#define CHAR_IS_UNSIGNED\n"); -#ifdef HAVE_STDDEF_H - fprintf(outfile, "#define HAVE_STDDEF_H\n"); -#else - fprintf(outfile, "#undef HAVE_STDDEF_H\n"); -#endif -#ifdef HAVE_STDLIB_H - fprintf(outfile, "#define HAVE_STDLIB_H\n"); -#else - fprintf(outfile, "#undef HAVE_STDLIB_H\n"); -#endif -#ifdef NEED_BSD_STRINGS - fprintf(outfile, "#define NEED_BSD_STRINGS\n"); -#else - fprintf(outfile, "#undef NEED_BSD_STRINGS\n"); -#endif -#ifdef NEED_SYS_TYPES_H - fprintf(outfile, "#define NEED_SYS_TYPES_H\n"); -#else - fprintf(outfile, "#undef NEED_SYS_TYPES_H\n"); -#endif - fprintf(outfile, "#undef NEED_FAR_POINTERS\n"); -#ifdef NEED_SHORT_EXTERNAL_NAMES - fprintf(outfile, "#define NEED_SHORT_EXTERNAL_NAMES\n"); -#else - fprintf(outfile, "#undef NEED_SHORT_EXTERNAL_NAMES\n"); -#endif -#ifdef INCOMPLETE_TYPES_BROKEN - fprintf(outfile, "#define INCOMPLETE_TYPES_BROKEN\n"); -#else - fprintf(outfile, "#undef INCOMPLETE_TYPES_BROKEN\n"); -#endif - fprintf(outfile, "\n#ifdef JPEG_INTERNALS\n\n"); - if (is_shifting_signed(-0x7F7E80B1L)) - fprintf(outfile, "#undef RIGHT_SHIFT_IS_UNSIGNED\n"); - else - fprintf(outfile, "#define RIGHT_SHIFT_IS_UNSIGNED\n"); - fprintf(outfile, "\n#endif /* JPEG_INTERNALS */\n"); - fprintf(outfile, "\n#ifdef JPEG_CJPEG_DJPEG\n\n"); - fprintf(outfile, "#define BMP_SUPPORTED /* BMP image file format */\n"); - fprintf(outfile, "#define GIF_SUPPORTED /* GIF image file format */\n"); - fprintf(outfile, "#define PPM_SUPPORTED /* PBMPLUS PPM/PGM image file format */\n"); - fprintf(outfile, "#undef RLE_SUPPORTED /* Utah RLE image file format */\n"); - fprintf(outfile, "#define TARGA_SUPPORTED /* Targa image file format */\n\n"); - fprintf(outfile, "#undef TWO_FILE_COMMANDLINE /* You may need this on non-Unix systems */\n"); - fprintf(outfile, "#undef NEED_SIGNAL_CATCHER /* Define this if you use jmemname.c */\n"); - fprintf(outfile, "#undef DONT_USE_B_MODE\n"); - fprintf(outfile, "/* #define PROGRESS_REPORT */ /* optional */\n"); - fprintf(outfile, "\n#endif /* JPEG_CJPEG_DJPEG */\n"); - - /* Close the jconfig.h file */ - fclose(outfile); - - /* User report */ - printf("Configuration check for Independent JPEG Group's software done.\n"); - printf("\nI have written the jconfig.h file for you.\n\n"); -#ifdef HAVE_PROTOTYPES - printf("You should use makefile.ansi as the starting point for your Makefile.\n"); -#else - printf("You should use makefile.unix as the starting point for your Makefile.\n"); -#endif - -#ifdef NEED_SPECIAL_INCLUDE - printf("\nYou'll need to change jconfig.h to include the system include file\n"); - printf("that you found type size_t in, or add a direct definition of type\n"); - printf("size_t if that's what you used. Just add it to the end.\n"); -#endif - - return 0; -} diff --git a/jpg/coderules.txt b/jpg/coderules.txt deleted file mode 100644 index 357929f..0000000 --- a/jpg/coderules.txt +++ /dev/null @@ -1,118 +0,0 @@ -IJG JPEG LIBRARY: CODING RULES - -Copyright (C) 1991-1996, Thomas G. Lane. -This file is part of the Independent JPEG Group's software. -For conditions of distribution and use, see the accompanying README file. - - -Since numerous people will be contributing code and bug fixes, it's important -to establish a common coding style. The goal of using similar coding styles -is much more important than the details of just what that style is. - -In general we follow the recommendations of "Recommended C Style and Coding -Standards" revision 6.1 (Cannon et al. as modified by Spencer, Keppel and -Brader). This document is available in the IJG FTP archive (see -jpeg/doc/cstyle.ms.tbl.Z, or cstyle.txt.Z for those without nroff/tbl). - -Block comments should be laid out thusly: - -/* - * Block comments in this style. - */ - -We indent statements in K&R style, e.g., - if (test) { - then-part; - } else { - else-part; - } -with two spaces per indentation level. (This indentation convention is -handled automatically by GNU Emacs and many other text editors.) - -Multi-word names should be written in lower case with underscores, e.g., -multi_word_name (not multiWordName). Preprocessor symbols and enum constants -are similar but upper case (MULTI_WORD_NAME). Names should be unique within -the first fifteen characters. (On some older systems, global names must be -unique within six characters. We accommodate this without cluttering the -source code by using macros to substitute shorter names.) - -We use function prototypes everywhere; we rely on automatic source code -transformation to feed prototype-less C compilers. Transformation is done -by the simple and portable tool 'ansi2knr.c' (courtesy of Ghostscript). -ansi2knr is not very bright, so it imposes a format requirement on function -declarations: the function name MUST BEGIN IN COLUMN 1. Thus all functions -should be written in the following style: - -LOCAL(int *) -function_name (int a, char *b) -{ - code... -} - -Note that each function definition must begin with GLOBAL(type), LOCAL(type), -or METHODDEF(type). These macros expand to "static type" or just "type" as -appropriate. They provide a readable indication of the routine's usage and -can readily be changed for special needs. (For instance, special linkage -keywords can be inserted for use in Windows DLLs.) - -ansi2knr does not transform method declarations (function pointers in -structs). We handle these with a macro JMETHOD, defined as - #ifdef HAVE_PROTOTYPES - #define JMETHOD(type,methodname,arglist) type (*methodname) arglist - #else - #define JMETHOD(type,methodname,arglist) type (*methodname) () - #endif -which is used like this: - struct function_pointers { - JMETHOD(void, init_entropy_encoder, (int somearg, jparms *jp)); - JMETHOD(void, term_entropy_encoder, (void)); - }; -Note the set of parentheses surrounding the parameter list. - -A similar solution is used for forward and external function declarations -(see the EXTERN and JPP macros). - -If the code is to work on non-ANSI compilers, we cannot rely on a prototype -declaration to coerce actual parameters into the right types. Therefore, use -explicit casts on actual parameters whenever the actual parameter type is not -identical to the formal parameter. Beware of implicit conversions to "int". - -It seems there are some non-ANSI compilers in which the sizeof() operator -is defined to return int, yet size_t is defined as long. Needless to say, -this is brain-damaged. Always use the SIZEOF() macro in place of sizeof(), -so that the result is guaranteed to be of type size_t. - - -The JPEG library is intended to be used within larger programs. Furthermore, -we want it to be reentrant so that it can be used by applications that process -multiple images concurrently. The following rules support these requirements: - -1. Avoid direct use of file I/O, "malloc", error report printouts, etc; -pass these through the common routines provided. - -2. Minimize global namespace pollution. Functions should be declared static -wherever possible. (Note that our method-based calling conventions help this -a lot: in many modules only the initialization function will ever need to be -called directly, so only that function need be externally visible.) All -global function names should begin with "jpeg_", and should have an -abbreviated name (unique in the first six characters) substituted by macro -when NEED_SHORT_EXTERNAL_NAMES is set. - -3. Don't use global variables; anything that must be used in another module -should be in the common data structures. - -4. Don't use static variables except for read-only constant tables. Variables -that should be private to a module can be placed into private structures (see -the system architecture document, structure.txt). - -5. Source file names should begin with "j" for files that are part of the -library proper; source files that are not part of the library, such as cjpeg.c -and djpeg.c, do not begin with "j". Keep source file names to eight -characters (plus ".c" or ".h", etc) to make life easy for MS-DOSers. Keep -compression and decompression code in separate source files --- some -applications may want only one half of the library. - -Note: these rules (particularly #4) are not followed religiously in the -modules that are used in cjpeg/djpeg but are not part of the JPEG library -proper. Those modules are not really intended to be used in other -applications. diff --git a/jpg/config.guess b/jpg/config.guess deleted file mode 100644 index 8152efd..0000000 --- a/jpg/config.guess +++ /dev/null @@ -1,1522 +0,0 @@ -#! /bin/sh -# Attempt to guess a canonical system name. -# Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, -# 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, -# 2011 Free Software Foundation, Inc. - -timestamp='2011-11-11' - -# This file is free software; you can redistribute it and/or modify it -# under the terms of the GNU General Public License as published by -# the Free Software Foundation; either version 2 of the License, or -# (at your option) any later version. -# -# This program is distributed in the hope that it will be useful, but -# WITHOUT ANY WARRANTY; without even the implied warranty of -# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU -# General Public License for more details. -# -# You should have received a copy of the GNU General Public License -# along with this program; if not, write to the Free Software -# Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA -# 02110-1301, USA. -# -# As a special exception to the GNU General Public License, if you -# distribute this file as part of a program that contains a -# configuration script generated by Autoconf, you may include it under -# the same distribution terms that you use for the rest of that program. - - -# Originally written by Per Bothner. Please send patches (context -# diff format) to and include a ChangeLog -# entry. -# -# This script attempts to guess a canonical system name similar to -# config.sub. If it succeeds, it prints the system name on stdout, and -# exits with 0. Otherwise, it exits with 1. -# -# You can get the latest version of this script from: -# http://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.guess;hb=HEAD - -me=`echo "$0" | sed -e 's,.*/,,'` - -usage="\ -Usage: $0 [OPTION] - -Output the configuration name of the system \`$me' is run on. - -Operation modes: - -h, --help print this help, then exit - -t, --time-stamp print date of last modification, then exit - -v, --version print version number, then exit - -Report bugs and patches to ." - -version="\ -GNU config.guess ($timestamp) - -Originally written by Per Bothner. -Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, -2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Free -Software Foundation, Inc. - -This is free software; see the source for copying conditions. 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then - echo rs6000-ibm-aix3.2.4 - else - echo rs6000-ibm-aix3.2 - fi - exit ;; - *:AIX:*:[4567]) - IBM_CPU_ID=`/usr/sbin/lsdev -C -c processor -S available | sed 1q | awk '{ print $1 }'` - if /usr/sbin/lsattr -El ${IBM_CPU_ID} | grep ' POWER' >/dev/null 2>&1; then - IBM_ARCH=rs6000 - else - IBM_ARCH=powerpc - fi - if [ -x /usr/bin/oslevel ] ; then - IBM_REV=`/usr/bin/oslevel` - else - IBM_REV=${UNAME_VERSION}.${UNAME_RELEASE} - fi - echo ${IBM_ARCH}-ibm-aix${IBM_REV} - exit ;; - *:AIX:*:*) - echo rs6000-ibm-aix - exit ;; - ibmrt:4.4BSD:*|romp-ibm:BSD:*) - echo romp-ibm-bsd4.4 - exit ;; - ibmrt:*BSD:*|romp-ibm:BSD:*) # covers RT/PC BSD and - echo romp-ibm-bsd${UNAME_RELEASE} # 4.3 with uname added to - exit ;; # report: romp-ibm BSD 4.3 - *:BOSX:*:*) - echo rs6000-bull-bosx - exit ;; - DPX/2?00:B.O.S.:*:*) - echo m68k-bull-sysv3 - exit ;; - 9000/[34]??:4.3bsd:1.*:*) - echo m68k-hp-bsd - exit ;; - hp300:4.4BSD:*:* | 9000/[34]??:4.3bsd:2.*:*) - echo m68k-hp-bsd4.4 - exit ;; - 9000/[34678]??:HP-UX:*:*) - HPUX_REV=`echo ${UNAME_RELEASE}|sed -e 's/[^.]*.[0B]*//'` - case "${UNAME_MACHINE}" in - 9000/31? ) HP_ARCH=m68000 ;; - 9000/[34]?? ) HP_ARCH=m68k ;; - 9000/[678][0-9][0-9]) - if [ -x /usr/bin/getconf ]; then - sc_cpu_version=`/usr/bin/getconf SC_CPU_VERSION 2>/dev/null` - sc_kernel_bits=`/usr/bin/getconf SC_KERNEL_BITS 2>/dev/null` - case "${sc_cpu_version}" in - 523) HP_ARCH="hppa1.0" ;; # CPU_PA_RISC1_0 - 528) HP_ARCH="hppa1.1" ;; # CPU_PA_RISC1_1 - 532) # CPU_PA_RISC2_0 - case "${sc_kernel_bits}" in - 32) HP_ARCH="hppa2.0n" ;; - 64) HP_ARCH="hppa2.0w" ;; - '') HP_ARCH="hppa2.0" ;; # HP-UX 10.20 - esac ;; - esac - fi - if [ "${HP_ARCH}" = "" ]; then - eval $set_cc_for_build - sed 's/^ //' << EOF >$dummy.c - - #define _HPUX_SOURCE - #include - #include - - int main () - { - #if defined(_SC_KERNEL_BITS) - long bits = sysconf(_SC_KERNEL_BITS); - #endif - long cpu = sysconf (_SC_CPU_VERSION); - - switch (cpu) - { - case CPU_PA_RISC1_0: puts ("hppa1.0"); break; - case CPU_PA_RISC1_1: puts ("hppa1.1"); break; - case CPU_PA_RISC2_0: - #if defined(_SC_KERNEL_BITS) - switch (bits) - { - case 64: puts ("hppa2.0w"); break; - case 32: puts ("hppa2.0n"); break; - default: puts ("hppa2.0"); break; - } break; - #else /* !defined(_SC_KERNEL_BITS) */ - puts ("hppa2.0"); break; - #endif - default: puts ("hppa1.0"); break; - } - exit (0); - } -EOF - (CCOPTS= $CC_FOR_BUILD -o $dummy $dummy.c 2>/dev/null) && HP_ARCH=`$dummy` - test -z "$HP_ARCH" && HP_ARCH=hppa - fi ;; - esac - if [ ${HP_ARCH} = "hppa2.0w" ] - then - eval $set_cc_for_build - - # hppa2.0w-hp-hpux* has a 64-bit kernel and a compiler generating - # 32-bit code. hppa64-hp-hpux* has the same kernel and a compiler - # generating 64-bit code. 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CPU_IS_PA_RISC returns correct - results, however. */ - if (CPU_IS_PA_RISC (cpu)) - { - switch (cpu) - { - case CPU_PA_RISC1_0: puts ("hppa1.0-hitachi-hiuxwe2"); break; - case CPU_PA_RISC1_1: puts ("hppa1.1-hitachi-hiuxwe2"); break; - case CPU_PA_RISC2_0: puts ("hppa2.0-hitachi-hiuxwe2"); break; - default: puts ("hppa-hitachi-hiuxwe2"); break; - } - } - else if (CPU_IS_HP_MC68K (cpu)) - puts ("m68k-hitachi-hiuxwe2"); - else puts ("unknown-hitachi-hiuxwe2"); - exit (0); - } -EOF - $CC_FOR_BUILD -o $dummy $dummy.c && SYSTEM_NAME=`$dummy` && - { echo "$SYSTEM_NAME"; exit; } - echo unknown-hitachi-hiuxwe2 - exit ;; - 9000/7??:4.3bsd:*:* | 9000/8?[79]:4.3bsd:*:* ) - echo hppa1.1-hp-bsd - exit ;; - 9000/8??:4.3bsd:*:*) - echo hppa1.0-hp-bsd - exit ;; - *9??*:MPE/iX:*:* | *3000*:MPE/iX:*:*) - echo hppa1.0-hp-mpeix - exit ;; - hp7??:OSF1:*:* | hp8?[79]:OSF1:*:* ) - echo hppa1.1-hp-osf - exit ;; - hp8??:OSF1:*:*) - echo hppa1.0-hp-osf - exit ;; - i*86:OSF1:*:*) - if [ -x /usr/sbin/sysversion ] ; then - echo ${UNAME_MACHINE}-unknown-osf1mk - else - echo ${UNAME_MACHINE}-unknown-osf1 - fi - exit ;; - parisc*:Lites*:*:*) - echo hppa1.1-hp-lites - exit ;; - C1*:ConvexOS:*:* | convex:ConvexOS:C1*:*) - echo c1-convex-bsd - exit ;; - C2*:ConvexOS:*:* | convex:ConvexOS:C2*:*) - if getsysinfo -f scalar_acc - then echo c32-convex-bsd - else echo c2-convex-bsd - fi - exit ;; - C34*:ConvexOS:*:* | convex:ConvexOS:C34*:*) - echo c34-convex-bsd - exit ;; - C38*:ConvexOS:*:* | convex:ConvexOS:C38*:*) - echo c38-convex-bsd - exit ;; - C4*:ConvexOS:*:* | convex:ConvexOS:C4*:*) - echo c4-convex-bsd - exit ;; - CRAY*Y-MP:*:*:*) - echo ymp-cray-unicos${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/' - exit ;; - CRAY*[A-Z]90:*:*:*) - echo ${UNAME_MACHINE}-cray-unicos${UNAME_RELEASE} \ - | sed -e 's/CRAY.*\([A-Z]90\)/\1/' \ - -e y/ABCDEFGHIJKLMNOPQRSTUVWXYZ/abcdefghijklmnopqrstuvwxyz/ \ - -e 's/\.[^.]*$/.X/' - exit ;; - CRAY*TS:*:*:*) - echo t90-cray-unicos${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/' - exit ;; - CRAY*T3E:*:*:*) - echo alphaev5-cray-unicosmk${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/' - exit ;; - CRAY*SV1:*:*:*) - echo sv1-cray-unicos${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/' - exit ;; - *:UNICOS/mp:*:*) - echo craynv-cray-unicosmp${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/' - exit ;; - F30[01]:UNIX_System_V:*:* | F700:UNIX_System_V:*:*) - FUJITSU_PROC=`uname -m | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz'` - FUJITSU_SYS=`uname -p | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz' | sed -e 's/\///'` - FUJITSU_REL=`echo ${UNAME_RELEASE} | sed -e 's/ /_/'` - echo "${FUJITSU_PROC}-fujitsu-${FUJITSU_SYS}${FUJITSU_REL}" - exit ;; - 5000:UNIX_System_V:4.*:*) - FUJITSU_SYS=`uname -p | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz' | sed -e 's/\///'` - FUJITSU_REL=`echo ${UNAME_RELEASE} | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz' | sed -e 's/ /_/'` - echo "sparc-fujitsu-${FUJITSU_SYS}${FUJITSU_REL}" - exit ;; - i*86:BSD/386:*:* | i*86:BSD/OS:*:* | *:Ascend\ Embedded/OS:*:*) - echo ${UNAME_MACHINE}-pc-bsdi${UNAME_RELEASE} - exit ;; - sparc*:BSD/OS:*:*) - echo sparc-unknown-bsdi${UNAME_RELEASE} - exit ;; - *:BSD/OS:*:*) - echo ${UNAME_MACHINE}-unknown-bsdi${UNAME_RELEASE} - exit ;; - *:FreeBSD:*:*) - UNAME_PROCESSOR=`/usr/bin/uname -p` - case ${UNAME_PROCESSOR} in - amd64) - echo x86_64-unknown-freebsd`echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'` ;; - *) - echo ${UNAME_PROCESSOR}-unknown-freebsd`echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'` ;; - esac - exit ;; - i*:CYGWIN*:*) - echo ${UNAME_MACHINE}-pc-cygwin - exit ;; - *:MINGW*:*) - echo ${UNAME_MACHINE}-pc-mingw32 - exit ;; - i*:MSYS*:*) - echo ${UNAME_MACHINE}-pc-msys - exit ;; - i*:windows32*:*) - # uname -m includes "-pc" on this system. - echo ${UNAME_MACHINE}-mingw32 - exit ;; - i*:PW*:*) - echo ${UNAME_MACHINE}-pc-pw32 - exit ;; - *:Interix*:*) - case ${UNAME_MACHINE} in - x86) - echo i586-pc-interix${UNAME_RELEASE} - exit ;; - authenticamd | genuineintel | EM64T) - echo x86_64-unknown-interix${UNAME_RELEASE} - exit ;; - IA64) - echo ia64-unknown-interix${UNAME_RELEASE} - exit ;; - esac ;; - [345]86:Windows_95:* | [345]86:Windows_98:* | [345]86:Windows_NT:*) - echo i${UNAME_MACHINE}-pc-mks - exit ;; - 8664:Windows_NT:*) - echo x86_64-pc-mks - exit ;; - i*:Windows_NT*:* | Pentium*:Windows_NT*:*) - # How do we know it's Interix rather than the generic POSIX subsystem? - # It also conflicts with pre-2.0 versions of AT&T UWIN. Should we - # UNAME_MACHINE based on the output of uname instead of i386? - echo i586-pc-interix - exit ;; - i*:UWIN*:*) - echo ${UNAME_MACHINE}-pc-uwin - exit ;; - amd64:CYGWIN*:*:* | x86_64:CYGWIN*:*:*) - echo x86_64-unknown-cygwin - exit ;; - p*:CYGWIN*:*) - echo powerpcle-unknown-cygwin - exit ;; - prep*:SunOS:5.*:*) - echo powerpcle-unknown-solaris2`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'` - exit ;; - *:GNU:*:*) - # the GNU system - echo `echo ${UNAME_MACHINE}|sed -e 's,[-/].*$,,'`-unknown-gnu`echo ${UNAME_RELEASE}|sed -e 's,/.*$,,'` - exit ;; - *:GNU/*:*:*) - # other systems with GNU libc and userland - echo ${UNAME_MACHINE}-unknown-`echo ${UNAME_SYSTEM} | sed 's,^[^/]*/,,' | tr '[A-Z]' '[a-z]'``echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'`-gnu - exit ;; - i*86:Minix:*:*) - echo ${UNAME_MACHINE}-pc-minix - exit ;; - alpha:Linux:*:*) - case `sed -n '/^cpu model/s/^.*: \(.*\)/\1/p' < /proc/cpuinfo` in - EV5) UNAME_MACHINE=alphaev5 ;; - EV56) UNAME_MACHINE=alphaev56 ;; - PCA56) UNAME_MACHINE=alphapca56 ;; - PCA57) UNAME_MACHINE=alphapca56 ;; - EV6) UNAME_MACHINE=alphaev6 ;; - EV67) UNAME_MACHINE=alphaev67 ;; - EV68*) UNAME_MACHINE=alphaev68 ;; - esac - objdump --private-headers /bin/sh | grep -q ld.so.1 - if test "$?" = 0 ; then LIBC="libc1" ; else LIBC="" ; fi - echo ${UNAME_MACHINE}-unknown-linux-gnu${LIBC} - exit ;; - arm*:Linux:*:*) - eval $set_cc_for_build - if echo __ARM_EABI__ | $CC_FOR_BUILD -E - 2>/dev/null \ - | grep -q __ARM_EABI__ - then - echo ${UNAME_MACHINE}-unknown-linux-gnu - else - if echo __ARM_PCS_VFP | $CC_FOR_BUILD -E - 2>/dev/null \ - | grep -q __ARM_PCS_VFP - then - echo ${UNAME_MACHINE}-unknown-linux-gnueabi - else - echo ${UNAME_MACHINE}-unknown-linux-gnueabihf - fi - fi - exit ;; - avr32*:Linux:*:*) - echo ${UNAME_MACHINE}-unknown-linux-gnu - exit ;; - cris:Linux:*:*) - echo cris-axis-linux-gnu - exit ;; - crisv32:Linux:*:*) - echo crisv32-axis-linux-gnu - exit ;; - frv:Linux:*:*) - echo frv-unknown-linux-gnu - exit ;; - hexagon:Linux:*:*) - echo hexagon-unknown-linux-gnu - exit ;; - i*86:Linux:*:*) - LIBC=gnu - eval $set_cc_for_build - sed 's/^ //' << EOF >$dummy.c - #ifdef __dietlibc__ - LIBC=dietlibc - #endif -EOF - eval `$CC_FOR_BUILD -E $dummy.c 2>/dev/null | grep '^LIBC'` - echo "${UNAME_MACHINE}-pc-linux-${LIBC}" - exit ;; - ia64:Linux:*:*) - echo ${UNAME_MACHINE}-unknown-linux-gnu - exit ;; - m32r*:Linux:*:*) - echo ${UNAME_MACHINE}-unknown-linux-gnu - exit ;; - m68*:Linux:*:*) - echo ${UNAME_MACHINE}-unknown-linux-gnu - exit ;; - mips:Linux:*:* | mips64:Linux:*:*) - eval $set_cc_for_build - sed 's/^ //' << EOF >$dummy.c - #undef CPU - #undef ${UNAME_MACHINE} - #undef ${UNAME_MACHINE}el - #if defined(__MIPSEL__) || defined(__MIPSEL) || defined(_MIPSEL) || defined(MIPSEL) - CPU=${UNAME_MACHINE}el - #else - #if defined(__MIPSEB__) || defined(__MIPSEB) || defined(_MIPSEB) || defined(MIPSEB) - CPU=${UNAME_MACHINE} - #else - CPU= - #endif - #endif -EOF - eval `$CC_FOR_BUILD -E $dummy.c 2>/dev/null | grep '^CPU'` - test x"${CPU}" != x && { echo "${CPU}-unknown-linux-gnu"; exit; } - ;; - or32:Linux:*:*) - echo or32-unknown-linux-gnu - exit ;; - padre:Linux:*:*) - echo sparc-unknown-linux-gnu - exit ;; - parisc64:Linux:*:* | hppa64:Linux:*:*) - echo hppa64-unknown-linux-gnu - exit ;; - parisc:Linux:*:* | hppa:Linux:*:*) - # Look for CPU level - case `grep '^cpu[^a-z]*:' /proc/cpuinfo 2>/dev/null | cut -d' ' -f2` in - PA7*) echo hppa1.1-unknown-linux-gnu ;; - PA8*) echo hppa2.0-unknown-linux-gnu ;; - *) echo hppa-unknown-linux-gnu ;; - esac - exit ;; - ppc64:Linux:*:*) - echo powerpc64-unknown-linux-gnu - exit ;; - ppc:Linux:*:*) - echo powerpc-unknown-linux-gnu - exit ;; - s390:Linux:*:* | s390x:Linux:*:*) - echo ${UNAME_MACHINE}-ibm-linux - exit ;; - sh64*:Linux:*:*) - echo ${UNAME_MACHINE}-unknown-linux-gnu - exit ;; - sh*:Linux:*:*) - echo ${UNAME_MACHINE}-unknown-linux-gnu - exit ;; - sparc:Linux:*:* | sparc64:Linux:*:*) - echo ${UNAME_MACHINE}-unknown-linux-gnu - exit ;; - tile*:Linux:*:*) - echo ${UNAME_MACHINE}-unknown-linux-gnu - exit ;; - vax:Linux:*:*) - echo ${UNAME_MACHINE}-dec-linux-gnu - exit ;; - x86_64:Linux:*:*) - echo x86_64-unknown-linux-gnu - exit ;; - xtensa*:Linux:*:*) - echo ${UNAME_MACHINE}-unknown-linux-gnu - exit ;; - i*86:DYNIX/ptx:4*:*) - # ptx 4.0 does uname -s correctly, with DYNIX/ptx in there. - # earlier versions are messed up and put the nodename in both - # sysname and nodename. - echo i386-sequent-sysv4 - exit ;; - i*86:UNIX_SV:4.2MP:2.*) - # Unixware is an offshoot of SVR4, but it has its own version - # number series starting with 2... - # I am not positive that other SVR4 systems won't match this, - # I just have to hope. -- rms. - # Use sysv4.2uw... so that sysv4* matches it. - echo ${UNAME_MACHINE}-pc-sysv4.2uw${UNAME_VERSION} - exit ;; - i*86:OS/2:*:*) - # If we were able to find `uname', then EMX Unix compatibility - # is probably installed. - echo ${UNAME_MACHINE}-pc-os2-emx - exit ;; - i*86:XTS-300:*:STOP) - echo ${UNAME_MACHINE}-unknown-stop - exit ;; - i*86:atheos:*:*) - echo ${UNAME_MACHINE}-unknown-atheos - exit ;; - i*86:syllable:*:*) - echo ${UNAME_MACHINE}-pc-syllable - exit ;; - i*86:LynxOS:2.*:* | i*86:LynxOS:3.[01]*:* | i*86:LynxOS:4.[02]*:*) - echo i386-unknown-lynxos${UNAME_RELEASE} - exit ;; - i*86:*DOS:*:*) - echo ${UNAME_MACHINE}-pc-msdosdjgpp - exit ;; - i*86:*:4.*:* | i*86:SYSTEM_V:4.*:*) - UNAME_REL=`echo ${UNAME_RELEASE} | sed 's/\/MP$//'` - if grep Novell /usr/include/link.h >/dev/null 2>/dev/null; then - echo ${UNAME_MACHINE}-univel-sysv${UNAME_REL} - else - echo ${UNAME_MACHINE}-pc-sysv${UNAME_REL} - fi - exit ;; - i*86:*:5:[678]*) - # UnixWare 7.x, OpenUNIX and OpenServer 6. - case `/bin/uname -X | grep "^Machine"` in - *486*) UNAME_MACHINE=i486 ;; - *Pentium) UNAME_MACHINE=i586 ;; - *Pent*|*Celeron) UNAME_MACHINE=i686 ;; - esac - echo ${UNAME_MACHINE}-unknown-sysv${UNAME_RELEASE}${UNAME_SYSTEM}${UNAME_VERSION} - exit ;; - i*86:*:3.2:*) - if test -f /usr/options/cb.name; then - UNAME_REL=`sed -n 's/.*Version //p' /dev/null >/dev/null ; then - UNAME_REL=`(/bin/uname -X|grep Release|sed -e 's/.*= //')` - (/bin/uname -X|grep i80486 >/dev/null) && UNAME_MACHINE=i486 - (/bin/uname -X|grep '^Machine.*Pentium' >/dev/null) \ - && UNAME_MACHINE=i586 - (/bin/uname -X|grep '^Machine.*Pent *II' >/dev/null) \ - && UNAME_MACHINE=i686 - (/bin/uname -X|grep '^Machine.*Pentium Pro' >/dev/null) \ - && UNAME_MACHINE=i686 - echo ${UNAME_MACHINE}-pc-sco$UNAME_REL - else - echo ${UNAME_MACHINE}-pc-sysv32 - fi - exit ;; 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exit; } ;; - 3[345]??:*:4.0:3.0 | 3[34]??A:*:4.0:3.0 | 3[34]??,*:*:4.0:3.0 | 3[34]??/*:*:4.0:3.0 | 4400:*:4.0:3.0 | 4850:*:4.0:3.0 | SKA40:*:4.0:3.0 | SDS2:*:4.0:3.0 | SHG2:*:4.0:3.0 | S7501*:*:4.0:3.0) - OS_REL='' - test -r /etc/.relid \ - && OS_REL=.`sed -n 's/[^ ]* [^ ]* \([0-9][0-9]\).*/\1/p' < /etc/.relid` - /bin/uname -p 2>/dev/null | grep 86 >/dev/null \ - && { echo i486-ncr-sysv4.3${OS_REL}; exit; } - /bin/uname -p 2>/dev/null | /bin/grep entium >/dev/null \ - && { echo i586-ncr-sysv4.3${OS_REL}; exit; } ;; - 3[34]??:*:4.0:* | 3[34]??,*:*:4.0:*) - /bin/uname -p 2>/dev/null | grep 86 >/dev/null \ - && { echo i486-ncr-sysv4; exit; } ;; - NCR*:*:4.2:* | MPRAS*:*:4.2:*) - OS_REL='.3' - test -r /etc/.relid \ - && OS_REL=.`sed -n 's/[^ ]* [^ ]* \([0-9][0-9]\).*/\1/p' < /etc/.relid` - /bin/uname -p 2>/dev/null | grep 86 >/dev/null \ - && { echo i486-ncr-sysv4.3${OS_REL}; exit; } - /bin/uname -p 2>/dev/null | /bin/grep entium >/dev/null \ - && { echo i586-ncr-sysv4.3${OS_REL}; exit; } - /bin/uname -p 2>/dev/null | /bin/grep pteron >/dev/null \ - && { echo i586-ncr-sysv4.3${OS_REL}; 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-esac - -#echo '(No uname command or uname output not recognized.)' 1>&2 -#echo "${UNAME_MACHINE}:${UNAME_SYSTEM}:${UNAME_RELEASE}:${UNAME_VERSION}" 1>&2 - -eval $set_cc_for_build -cat >$dummy.c < -# include -#endif -main () -{ -#if defined (sony) -#if defined (MIPSEB) - /* BFD wants "bsd" instead of "newsos". 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We also -### recognize some manufacturers as not being operating systems, so we -### can provide default operating systems below. -case $os in - -sun*os*) - # Prevent following clause from handling this invalid input. - ;; - -dec* | -mips* | -sequent* | -encore* | -pc532* | -sgi* | -sony* | \ - -att* | -7300* | -3300* | -delta* | -motorola* | -sun[234]* | \ - -unicom* | -ibm* | -next | -hp | -isi* | -apollo | -altos* | \ - -convergent* | -ncr* | -news | -32* | -3600* | -3100* | -hitachi* |\ - -c[123]* | -convex* | -sun | -crds | -omron* | -dg | -ultra | -tti* | \ - -harris | -dolphin | -highlevel | -gould | -cbm | -ns | -masscomp | \ - -apple | -axis | -knuth | -cray | -microblaze) - os= - basic_machine=$1 - ;; - -bluegene*) - os=-cnk - ;; - -sim | -cisco | -oki | -wec | -winbond) - os= - basic_machine=$1 - ;; - -scout) - ;; - -wrs) - os=-vxworks - basic_machine=$1 - ;; - -chorusos*) - os=-chorusos - basic_machine=$1 - ;; - -chorusrdb) - os=-chorusrdb - basic_machine=$1 - ;; - -hiux*) - os=-hiuxwe2 - ;; 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- -windowsnt*) - os=`echo $os | sed -e 's/windowsnt/winnt/'` - ;; - -psos*) - os=-psos - ;; - -mint | -mint[0-9]*) - basic_machine=m68k-atari - os=-mint - ;; -esac - -# Decode aliases for certain CPU-COMPANY combinations. -case $basic_machine in - # Recognize the basic CPU types without company name. - # Some are omitted here because they have special meanings below. - 1750a | 580 \ - | a29k \ - | alpha | alphaev[4-8] | alphaev56 | alphaev6[78] | alphapca5[67] \ - | alpha64 | alpha64ev[4-8] | alpha64ev56 | alpha64ev6[78] | alpha64pca5[67] \ - | am33_2.0 \ - | arc | arm | arm[bl]e | arme[lb] | armv[2345] | armv[345][lb] | avr | avr32 \ - | be32 | be64 \ - | bfin \ - | c4x | clipper \ - | d10v | d30v | dlx | dsp16xx \ - | epiphany \ - | fido | fr30 | frv \ - | h8300 | h8500 | hppa | hppa1.[01] | hppa2.0 | hppa2.0[nw] | hppa64 \ - | hexagon \ - | i370 | i860 | i960 | ia64 \ - | ip2k | iq2000 \ - | le32 | le64 \ - | lm32 \ - | m32c | m32r | m32rle | m68000 | m68k | m88k \ - | maxq | mb | microblaze | mcore | mep | metag \ - | mips | mipsbe | mipseb | mipsel | mipsle \ - | mips16 \ - | mips64 | mips64el \ - | mips64octeon | mips64octeonel \ - | mips64orion | mips64orionel \ - | mips64r5900 | mips64r5900el \ - | mips64vr | mips64vrel \ - | mips64vr4100 | mips64vr4100el \ - | mips64vr4300 | mips64vr4300el \ - | mips64vr5000 | mips64vr5000el \ - | mips64vr5900 | mips64vr5900el \ - | mipsisa32 | mipsisa32el \ - | mipsisa32r2 | mipsisa32r2el \ - | mipsisa64 | mipsisa64el \ - | mipsisa64r2 | mipsisa64r2el \ - | mipsisa64sb1 | mipsisa64sb1el \ - | mipsisa64sr71k | mipsisa64sr71kel \ - | mipstx39 | mipstx39el \ - | mn10200 | mn10300 \ - | moxie \ - | mt \ - | msp430 \ - | nds32 | nds32le | nds32be \ - | nios | nios2 \ - | ns16k | ns32k \ - | open8 \ - | or32 \ - | pdp10 | pdp11 | pj | pjl \ - | powerpc | powerpc64 | powerpc64le | powerpcle \ - | pyramid \ - | rl78 | rx \ - | score \ - | sh | sh[1234] | sh[24]a | sh[24]aeb | sh[23]e | sh[34]eb | sheb | shbe | shle | sh[1234]le | sh3ele \ - | sh64 | sh64le \ - | sparc | sparc64 | sparc64b | sparc64v | sparc86x | sparclet | sparclite \ - | sparcv8 | sparcv9 | sparcv9b | sparcv9v \ - | spu \ - | tahoe | tic4x | tic54x | tic55x | tic6x | tic80 | tron \ - | ubicom32 \ - | v850 | v850e | v850e1 | v850e2 | v850es | v850e2v3 \ - | we32k \ - | x86 | xc16x | xstormy16 | xtensa \ - | z8k | z80) - basic_machine=$basic_machine-unknown - ;; - c54x) - basic_machine=tic54x-unknown - ;; - c55x) - basic_machine=tic55x-unknown - ;; - c6x) - basic_machine=tic6x-unknown - ;; - m6811 | m68hc11 | m6812 | m68hc12 | picochip) - # Motorola 68HC11/12. - basic_machine=$basic_machine-unknown - os=-none - ;; - m88110 | m680[12346]0 | m683?2 | m68360 | m5200 | v70 | w65 | z8k) - ;; - ms1) - basic_machine=mt-unknown - ;; - - strongarm | thumb | xscale) - basic_machine=arm-unknown - ;; - - xscaleeb) - basic_machine=armeb-unknown - ;; - - xscaleel) - basic_machine=armel-unknown - ;; - - # We use `pc' rather than `unknown' - # because (1) that's what they normally are, and - # (2) the word "unknown" tends to confuse beginning users. - i*86 | x86_64) - basic_machine=$basic_machine-pc - ;; - # Object if more than one company name word. - *-*-*) - echo Invalid configuration \`$1\': machine \`$basic_machine\' not recognized 1>&2 - exit 1 - ;; - # Recognize the basic CPU types with company name. - 580-* \ - | a29k-* \ - | alpha-* | alphaev[4-8]-* | alphaev56-* | alphaev6[78]-* \ - | alpha64-* | alpha64ev[4-8]-* | alpha64ev56-* | alpha64ev6[78]-* \ - | alphapca5[67]-* | alpha64pca5[67]-* | arc-* \ - | arm-* | armbe-* | armle-* | armeb-* | armv*-* \ - | avr-* | avr32-* \ - | be32-* | be64-* \ - | bfin-* | bs2000-* \ - | c[123]* | c30-* | [cjt]90-* | c4x-* \ - | clipper-* | craynv-* | cydra-* \ - | d10v-* | d30v-* | dlx-* \ - | elxsi-* \ - | f30[01]-* | f700-* | fido-* | fr30-* | frv-* | fx80-* \ - | h8300-* | h8500-* \ - | hppa-* | hppa1.[01]-* | hppa2.0-* | hppa2.0[nw]-* | hppa64-* \ - | hexagon-* \ - | i*86-* | i860-* | i960-* | ia64-* \ - | ip2k-* | iq2000-* \ - | le32-* | le64-* \ - | lm32-* \ - | m32c-* | m32r-* | m32rle-* \ - | m68000-* | m680[012346]0-* | m68360-* | m683?2-* | m68k-* \ - | m88110-* | m88k-* | maxq-* | mcore-* | metag-* | microblaze-* \ - | mips-* | mipsbe-* | mipseb-* | mipsel-* | mipsle-* \ - | mips16-* \ - | mips64-* | mips64el-* \ - | mips64octeon-* | mips64octeonel-* \ - | mips64orion-* | mips64orionel-* \ - | mips64r5900-* | mips64r5900el-* \ - | mips64vr-* | mips64vrel-* \ - | mips64vr4100-* | mips64vr4100el-* \ - | mips64vr4300-* | mips64vr4300el-* \ - | mips64vr5000-* | mips64vr5000el-* \ - | mips64vr5900-* | mips64vr5900el-* \ - | mipsisa32-* | mipsisa32el-* \ - | mipsisa32r2-* | mipsisa32r2el-* \ - | mipsisa64-* | mipsisa64el-* \ - | mipsisa64r2-* | mipsisa64r2el-* \ - | mipsisa64sb1-* | mipsisa64sb1el-* \ - | mipsisa64sr71k-* | mipsisa64sr71kel-* \ - | mipstx39-* | mipstx39el-* \ - | mmix-* \ - | mt-* \ - | msp430-* \ - | nds32-* | nds32le-* | nds32be-* \ - | nios-* | nios2-* \ - | none-* | np1-* | ns16k-* | ns32k-* \ - | open8-* \ - | orion-* \ - | pdp10-* | pdp11-* | pj-* | pjl-* | pn-* | power-* \ - | powerpc-* | powerpc64-* | powerpc64le-* | powerpcle-* \ - | pyramid-* \ - | rl78-* | romp-* | rs6000-* | rx-* \ - | sh-* | sh[1234]-* | sh[24]a-* | sh[24]aeb-* | sh[23]e-* | sh[34]eb-* | sheb-* | shbe-* \ - | shle-* | sh[1234]le-* | sh3ele-* | sh64-* | sh64le-* \ - | sparc-* | sparc64-* | sparc64b-* | sparc64v-* | sparc86x-* | sparclet-* \ - | sparclite-* \ - | sparcv8-* | sparcv9-* | sparcv9b-* | sparcv9v-* | sv1-* | sx?-* \ - | tahoe-* \ - | tic30-* | tic4x-* | tic54x-* | tic55x-* | tic6x-* | tic80-* \ - | tile*-* \ - | tron-* \ - | ubicom32-* \ - | v850-* | v850e-* | v850e1-* | v850es-* | v850e2-* | v850e2v3-* \ - | vax-* \ - | we32k-* \ - | x86-* | x86_64-* | xc16x-* | xps100-* \ - | xstormy16-* | xtensa*-* \ - | ymp-* \ - | z8k-* | z80-*) - ;; - # Recognize the basic CPU types without company name, with glob match. - xtensa*) - basic_machine=$basic_machine-unknown - ;; - # Recognize the various machine names and aliases which stand - # for a CPU type and a company and sometimes even an OS. - 386bsd) - basic_machine=i386-unknown - os=-bsd - ;; - 3b1 | 7300 | 7300-att | att-7300 | pc7300 | safari | unixpc) - basic_machine=m68000-att - ;; - 3b*) - basic_machine=we32k-att - ;; - a29khif) - basic_machine=a29k-amd - os=-udi - ;; - abacus) - basic_machine=abacus-unknown - ;; - adobe68k) - basic_machine=m68010-adobe - os=-scout - ;; - alliant | fx80) - basic_machine=fx80-alliant - ;; - altos | altos3068) - basic_machine=m68k-altos - ;; - am29k) - basic_machine=a29k-none - os=-bsd - ;; - amd64) - basic_machine=x86_64-pc - ;; - amd64-*) - basic_machine=x86_64-`echo $basic_machine | sed 's/^[^-]*-//'` - ;; - amdahl) - basic_machine=580-amdahl - os=-sysv - ;; - amiga | amiga-*) - basic_machine=m68k-unknown - ;; - amigaos | amigados) - basic_machine=m68k-unknown - os=-amigaos - ;; - amigaunix | amix) - basic_machine=m68k-unknown - os=-sysv4 - ;; - apollo68) - basic_machine=m68k-apollo - os=-sysv - ;; - apollo68bsd) - basic_machine=m68k-apollo - os=-bsd - ;; - aros) - basic_machine=i386-pc - os=-aros - ;; - aux) - basic_machine=m68k-apple - os=-aux - ;; - balance) - basic_machine=ns32k-sequent - os=-dynix - ;; - blackfin) - basic_machine=bfin-unknown - os=-linux - ;; - blackfin-*) - basic_machine=bfin-`echo $basic_machine | sed 's/^[^-]*-//'` - os=-linux - ;; - bluegene*) - basic_machine=powerpc-ibm - os=-cnk - ;; - c54x-*) - basic_machine=tic54x-`echo $basic_machine | sed 's/^[^-]*-//'` - ;; - c55x-*) - basic_machine=tic55x-`echo $basic_machine | sed 's/^[^-]*-//'` - ;; - c6x-*) - basic_machine=tic6x-`echo $basic_machine | sed 's/^[^-]*-//'` - ;; - c90) - basic_machine=c90-cray - os=-unicos - ;; - cegcc) - basic_machine=arm-unknown - os=-cegcc - ;; - convex-c1) - basic_machine=c1-convex - os=-bsd - ;; - convex-c2) - basic_machine=c2-convex - os=-bsd - ;; - convex-c32) - basic_machine=c32-convex - os=-bsd - ;; - convex-c34) - basic_machine=c34-convex - os=-bsd - ;; - convex-c38) - basic_machine=c38-convex - os=-bsd - ;; - cray | j90) - basic_machine=j90-cray - os=-unicos - ;; - craynv) - basic_machine=craynv-cray - os=-unicosmp - ;; - cr16 | cr16-*) - basic_machine=cr16-unknown - os=-elf - ;; - crds | unos) - basic_machine=m68k-crds - ;; - crisv32 | crisv32-* | etraxfs*) - basic_machine=crisv32-axis - ;; - cris | cris-* | etrax*) - basic_machine=cris-axis - ;; - crx) - basic_machine=crx-unknown - os=-elf - ;; - da30 | da30-*) - basic_machine=m68k-da30 - ;; - decstation | decstation-3100 | pmax | pmax-* | pmin | dec3100 | decstatn) - basic_machine=mips-dec - ;; - decsystem10* | dec10*) - basic_machine=pdp10-dec - os=-tops10 - ;; - decsystem20* | dec20*) - basic_machine=pdp10-dec - os=-tops20 - ;; - delta | 3300 | motorola-3300 | motorola-delta \ - | 3300-motorola | delta-motorola) - basic_machine=m68k-motorola - ;; - delta88) - basic_machine=m88k-motorola - os=-sysv3 - ;; - dicos) - basic_machine=i686-pc - os=-dicos - ;; - djgpp) - basic_machine=i586-pc - os=-msdosdjgpp - ;; - dpx20 | dpx20-*) - basic_machine=rs6000-bull - os=-bosx - ;; - dpx2* | dpx2*-bull) - basic_machine=m68k-bull - os=-sysv3 - ;; - ebmon29k) - basic_machine=a29k-amd - os=-ebmon - ;; - elxsi) - basic_machine=elxsi-elxsi - os=-bsd - ;; - encore | umax | mmax) - basic_machine=ns32k-encore - ;; - es1800 | OSE68k | ose68k | ose | OSE) - basic_machine=m68k-ericsson - os=-ose - ;; - fx2800) - basic_machine=i860-alliant - ;; - genix) - basic_machine=ns32k-ns - ;; - gmicro) - basic_machine=tron-gmicro - os=-sysv - ;; - go32) - basic_machine=i386-pc - os=-go32 - ;; - h3050r* | hiux*) - basic_machine=hppa1.1-hitachi - os=-hiuxwe2 - ;; - h8300hms) - basic_machine=h8300-hitachi - os=-hms - ;; - h8300xray) - basic_machine=h8300-hitachi - os=-xray - ;; - h8500hms) - basic_machine=h8500-hitachi - os=-hms - ;; - harris) - basic_machine=m88k-harris - os=-sysv3 - ;; - hp300-*) - basic_machine=m68k-hp - ;; - hp300bsd) - basic_machine=m68k-hp - os=-bsd - ;; - hp300hpux) - basic_machine=m68k-hp - os=-hpux - ;; - hp3k9[0-9][0-9] | hp9[0-9][0-9]) - basic_machine=hppa1.0-hp - ;; - hp9k2[0-9][0-9] | hp9k31[0-9]) - basic_machine=m68000-hp - ;; - hp9k3[2-9][0-9]) - basic_machine=m68k-hp - ;; - hp9k6[0-9][0-9] | hp6[0-9][0-9]) - basic_machine=hppa1.0-hp - ;; - hp9k7[0-79][0-9] | hp7[0-79][0-9]) - basic_machine=hppa1.1-hp - ;; - hp9k78[0-9] | hp78[0-9]) - # FIXME: really hppa2.0-hp - basic_machine=hppa1.1-hp - ;; - hp9k8[67]1 | hp8[67]1 | hp9k80[24] | hp80[24] | hp9k8[78]9 | hp8[78]9 | hp9k893 | hp893) - # FIXME: really hppa2.0-hp - basic_machine=hppa1.1-hp - ;; - hp9k8[0-9][13679] | hp8[0-9][13679]) - basic_machine=hppa1.1-hp - ;; - hp9k8[0-9][0-9] | hp8[0-9][0-9]) - basic_machine=hppa1.0-hp - ;; - hppa-next) - os=-nextstep3 - ;; - hppaosf) - basic_machine=hppa1.1-hp - os=-osf - ;; - hppro) - basic_machine=hppa1.1-hp - os=-proelf - ;; - i370-ibm* | ibm*) - basic_machine=i370-ibm - ;; -# I'm not sure what "Sysv32" means. Should this be sysv3.2? - i*86v32) - basic_machine=`echo $1 | sed -e 's/86.*/86-pc/'` - os=-sysv32 - ;; - i*86v4*) - basic_machine=`echo $1 | sed -e 's/86.*/86-pc/'` - os=-sysv4 - ;; - i*86v) - basic_machine=`echo $1 | sed -e 's/86.*/86-pc/'` - os=-sysv - ;; - i*86sol2) - basic_machine=`echo $1 | sed -e 's/86.*/86-pc/'` - os=-solaris2 - ;; - i386mach) - basic_machine=i386-mach - os=-mach - ;; - i386-vsta | vsta) - basic_machine=i386-unknown - os=-vsta - ;; - iris | iris4d) - basic_machine=mips-sgi - case $os in - -irix*) - ;; - *) - os=-irix4 - ;; - esac - ;; - isi68 | isi) - basic_machine=m68k-isi - os=-sysv - ;; - m68knommu) - basic_machine=m68k-unknown - os=-linux - ;; - m68knommu-*) - basic_machine=m68k-`echo $basic_machine | sed 's/^[^-]*-//'` - os=-linux - ;; - m88k-omron*) - basic_machine=m88k-omron - ;; - magnum | m3230) - basic_machine=mips-mips - os=-sysv - ;; - merlin) - basic_machine=ns32k-utek - os=-sysv - ;; - microblaze) - basic_machine=microblaze-xilinx - ;; - mingw32) - basic_machine=i386-pc - os=-mingw32 - ;; - mingw32ce) - basic_machine=arm-unknown - os=-mingw32ce - ;; - miniframe) - basic_machine=m68000-convergent - ;; - *mint | -mint[0-9]* | *MiNT | *MiNT[0-9]*) - basic_machine=m68k-atari - os=-mint - ;; - mips3*-*) - basic_machine=`echo $basic_machine | sed -e 's/mips3/mips64/'` - ;; - mips3*) - basic_machine=`echo $basic_machine | sed -e 's/mips3/mips64/'`-unknown - ;; - monitor) - basic_machine=m68k-rom68k - os=-coff - ;; - morphos) - basic_machine=powerpc-unknown - os=-morphos - ;; - msdos) - basic_machine=i386-pc - os=-msdos - ;; - ms1-*) - basic_machine=`echo $basic_machine | sed -e 's/ms1-/mt-/'` - ;; - msys) - basic_machine=i386-pc - os=-msys - ;; - mvs) - basic_machine=i370-ibm - os=-mvs - ;; - nacl) - basic_machine=le32-unknown - os=-nacl - ;; - ncr3000) - basic_machine=i486-ncr - os=-sysv4 - ;; - netbsd386) - basic_machine=i386-unknown - os=-netbsd - ;; - netwinder) - basic_machine=armv4l-rebel - os=-linux - ;; - news | news700 | news800 | news900) - basic_machine=m68k-sony - os=-newsos - ;; - news1000) - basic_machine=m68030-sony - os=-newsos - ;; - news-3600 | risc-news) - basic_machine=mips-sony - os=-newsos - ;; - necv70) - basic_machine=v70-nec - os=-sysv - ;; - next | m*-next ) - basic_machine=m68k-next - case $os in - -nextstep* ) - ;; - -ns2*) - os=-nextstep2 - ;; - *) - os=-nextstep3 - ;; - esac - ;; - nh3000) - basic_machine=m68k-harris - os=-cxux - ;; - nh[45]000) - basic_machine=m88k-harris - os=-cxux - ;; - nindy960) - basic_machine=i960-intel - os=-nindy - ;; - mon960) - basic_machine=i960-intel - os=-mon960 - ;; - nonstopux) - basic_machine=mips-compaq - os=-nonstopux - ;; - np1) - basic_machine=np1-gould - ;; - neo-tandem) - basic_machine=neo-tandem - ;; - nse-tandem) - basic_machine=nse-tandem - ;; - nsr-tandem) - basic_machine=nsr-tandem - ;; - op50n-* | op60c-*) - basic_machine=hppa1.1-oki - os=-proelf - ;; - openrisc | openrisc-*) - basic_machine=or32-unknown - ;; - os400) - basic_machine=powerpc-ibm - os=-os400 - ;; - OSE68000 | ose68000) - basic_machine=m68000-ericsson - os=-ose - ;; 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then - AC_MSG_CHECKING([if LD -Wl,--version-script works]) - save_LDFLAGS="$LDFLAGS" - LDFLAGS="$LDFLAGS -Wl,--version-script=conftest.map" - cat > conftest.map < rather than standard .])]) - -# See whether type size_t is defined in any ANSI-standard places; -# if not, perhaps it is defined in . -AC_MSG_CHECKING([for size_t]) -AC_TRY_COMPILE([ -#ifdef HAVE_STDDEF_H -#include -#endif -#ifdef HAVE_STDLIB_H -#include -#endif -#include -#ifdef NEED_BSD_STRINGS -#include -#else -#include -#endif -typedef size_t my_size_t; -], - [ my_size_t foovar; ], - [ijg_size_t_ok=yes], - [ijg_size_t_ok="not ANSI, perhaps it is in sys/types.h"]) -AC_MSG_RESULT([$ijg_size_t_ok]) -if test "$ijg_size_t_ok" != yes; then - AC_CHECK_HEADER([sys/types.h], - [AC_DEFINE([NEED_SYS_TYPES_H], [1], - [Need to include in order to obtain size_t.]) - AC_EGREP_CPP([size_t], [#include ], - [ijg_size_t_ok="size_t is in sys/types.h"], - [ijg_size_t_ok=no])], - [ijg_size_t_ok=no]) - AC_MSG_RESULT([$ijg_size_t_ok]) - if test "$ijg_size_t_ok" = no; then - AC_MSG_WARN([Type size_t is not defined in any of the usual places. - Try putting '"typedef unsigned int size_t;"' in jconfig.h.]) - fi -fi - -# Check compiler characteristics -AC_MSG_CHECKING([for type unsigned char]) -AC_TRY_COMPILE([], [ unsigned char un_char; ], - [AC_MSG_RESULT(yes) - AC_DEFINE([HAVE_UNSIGNED_CHAR], [1], - [Compiler supports 'unsigned char'.])], - [AC_MSG_RESULT(no)]) - -AC_MSG_CHECKING([for type unsigned short]) -AC_TRY_COMPILE([], [ unsigned short un_short; ], - [AC_MSG_RESULT(yes) - AC_DEFINE([HAVE_UNSIGNED_SHORT], [1], - [Compiler supports 'unsigned short'.])], - [AC_MSG_RESULT(no)]) - -AC_MSG_CHECKING([for type void]) -AC_TRY_COMPILE([ -/* Caution: a C++ compiler will insist on valid prototypes */ -typedef void * void_ptr; /* check void * */ -#ifdef HAVE_PROTOTYPES /* check ptr to function returning void */ -typedef void (*void_func) (int a, int b); -#else -typedef void (*void_func) (); -#endif - -#ifdef HAVE_PROTOTYPES /* check void function result */ -void test3function (void_ptr arg1, void_func arg2) -#else -void test3function (arg1, arg2) - void_ptr arg1; - void_func arg2; -#endif -{ - char * locptr = (char *) arg1; /* check casting to and from void * */ - arg1 = (void *) locptr; - (*arg2) (1, 2); /* check call of fcn returning void */ -} -], [ ], - [AC_MSG_RESULT(yes)], - [AC_MSG_RESULT(no) - AC_DEFINE([void], [char], - [Define 'void' as 'char' for archaic compilers - that don't understand it.])]) -AC_C_CONST - -# Check for non-broken inline under various spellings -AC_MSG_CHECKING([for inline]) -ijg_cv_inline="" -AC_TRY_COMPILE([], [} __inline__ int foo() { return 0; } -int bar() { return foo();], ijg_cv_inline="__inline__", -[AC_TRY_COMPILE(, [} __inline int foo() { return 0; } -int bar() { return foo();], ijg_cv_inline="__inline", -[AC_TRY_COMPILE(, [} inline int foo() { return 0; } -int bar() { return foo();], ijg_cv_inline="inline")])]) -AC_MSG_RESULT($ijg_cv_inline) -AC_DEFINE_UNQUOTED([INLINE], [$ijg_cv_inline], - [How to obtain function inlining.]) - -# We cannot check for bogus warnings, but at least we can check for errors -AC_MSG_CHECKING([for broken incomplete types]) -AC_TRY_COMPILE([ typedef struct undefined_structure * undef_struct_ptr; ], - [], - [AC_MSG_RESULT(ok)], - [AC_MSG_RESULT(broken) - AC_DEFINE([INCOMPLETE_TYPES_BROKEN], [1], - [Compiler does not support pointers to unspecified - structures.])]) - -# Test whether global names are unique to at least 15 chars -AC_MSG_CHECKING([for short external names]) -AC_TRY_LINK([ -int possibly_duplicate_function () { return 0; } -int possibly_dupli_function () { return 1; } -], [], - [AC_MSG_RESULT(ok)], - [AC_MSG_RESULT(short) - AC_DEFINE([NEED_SHORT_EXTERNAL_NAMES], [1], - [Linker requires that global names be unique in - first 15 characters.])]) - -# Run-time checks -AC_MSG_CHECKING([to see if char is signed]) -AC_TRY_RUN([ -#ifdef HAVE_PROTOTYPES -int is_char_signed (int arg) -#else -int is_char_signed (arg) - int arg; -#endif -{ - if (arg == 189) { /* expected result for unsigned char */ - return 0; /* type char is unsigned */ - } - else if (arg != -67) { /* expected result for signed char */ - printf("Hmm, it seems 'char' is not eight bits wide on your machine.\n"); - printf("I fear the JPEG software will not work at all.\n\n"); - } - return 1; /* assume char is signed otherwise */ -} -char signed_char_check = (char) (-67); -int main() { - exit(is_char_signed((int) signed_char_check)); -}], [AC_MSG_RESULT(no) - AC_DEFINE([CHAR_IS_UNSIGNED], [1], - [Characters are unsigned])], - [AC_MSG_RESULT(yes)], -[AC_MSG_WARN([Assuming that char is signed on target machine. - If it is unsigned, this will be a little bit inefficient.]) -]) - -AC_MSG_CHECKING([to see if right shift is signed]) -AC_TRY_RUN([ -#ifdef HAVE_PROTOTYPES -int is_shifting_signed (long arg) -#else -int is_shifting_signed (arg) - long arg; -#endif -/* See whether right-shift on a long is signed or not. */ -{ - long res = arg >> 4; - - if (res == -0x7F7E80CL) { /* expected result for signed shift */ - return 1; /* right shift is signed */ - } - /* see if unsigned-shift hack will fix it. */ - /* we can't just test exact value since it depends on width of long... */ - res |= (~0L) << (32-4); 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# UTC - -# Copyright (C) 1999, 2000, 2003, 2004, 2005, 2006, 2007, 2009, 2010, -# 2011 Free Software Foundation, Inc. - -# This program is free software; you can redistribute it and/or modify -# it under the terms of the GNU General Public License as published by -# the Free Software Foundation; either version 2, or (at your option) -# any later version. - -# This program is distributed in the hope that it will be useful, -# but WITHOUT ANY WARRANTY; without even the implied warranty of -# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -# GNU General Public License for more details. - -# You should have received a copy of the GNU General Public License -# along with this program. If not, see . - -# As a special exception to the GNU General Public License, if you -# distribute this file as part of a program that contains a -# configuration script generated by Autoconf, you may include it under -# the same distribution terms that you use for the rest of that program. - -# Originally written by Alexandre Oliva . - -case $1 in - '') - echo "$0: No command. 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It works by - # looking at the text of this script. This case will never be run, - # since it is checked for above. - exit 1 - ;; - -none) - exec "$@" - ;; - -*) - echo "Unknown depmode $depmode" 1>&2 - exit 1 - ;; -esac - -exit 0 - -# Local Variables: -# mode: shell-script -# sh-indentation: 2 -# eval: (add-hook 'write-file-hooks 'time-stamp) -# time-stamp-start: "scriptversion=" -# time-stamp-format: "%:y-%02m-%02d.%02H" -# time-stamp-time-zone: "UTC" -# time-stamp-end: "; # UTC" -# End: diff --git a/jpg/djpeg.1 b/jpg/djpeg.1 deleted file mode 100644 index f3722d1..0000000 --- a/jpg/djpeg.1 +++ /dev/null @@ -1,252 +0,0 @@ -.TH DJPEG 1 "3 October 2009" -.SH NAME -djpeg \- decompress a JPEG file to an image file -.SH SYNOPSIS -.B djpeg -[ -.I options -] -[ -.I filename -] -.LP -.SH DESCRIPTION -.LP -.B djpeg -decompresses the named JPEG file, or the standard input if no file is named, -and produces an image file on the standard output. PBMPLUS (PPM/PGM), BMP, -GIF, Targa, or RLE (Utah Raster Toolkit) output format can be selected. -(RLE is supported only if the URT library is available.) -.SH OPTIONS -All switch names may be abbreviated; for example, -.B \-grayscale -may be written -.B \-gray -or -.BR \-gr . -Most of the "basic" switches can be abbreviated to as little as one letter. -Upper and lower case are equivalent (thus -.B \-BMP -is the same as -.BR \-bmp ). -British spellings are also accepted (e.g., -.BR \-greyscale ), -though for brevity these are not mentioned below. -.PP -The basic switches are: -.TP -.BI \-colors " N" -Reduce image to at most N colors. This reduces the number of colors used in -the output image, so that it can be displayed on a colormapped display or -stored in a colormapped file format. For example, if you have an 8-bit -display, you'd need to reduce to 256 or fewer colors. -.TP -.BI \-quantize " N" -Same as -.BR \-colors . -.B \-colors -is the recommended name, -.B \-quantize -is provided only for backwards compatibility. -.TP -.B \-fast -Select recommended processing options for fast, low quality output. (The -default options are chosen for highest quality output.) Currently, this is -equivalent to \fB\-dct fast \-nosmooth \-onepass \-dither ordered\fR. -.TP -.B \-grayscale -Force gray-scale output even if JPEG file is color. Useful for viewing on -monochrome displays; also, -.B djpeg -runs noticeably faster in this mode. -.TP -.BI \-scale " M/N" -Scale the output image by a factor M/N. Currently supported scale factors are -M/N with all M from 1 to 16, where N is the source DCT size, which is 8 for -baseline JPEG. If the /N part is omitted, then M specifies the DCT scaled -size to be applied on the given input. For baseline JPEG this is equivalent -to M/8 scaling, since the source DCT size for baseline JPEG is 8. -Scaling is handy if the image is larger than your screen; also, -.B djpeg -runs much faster when scaling down the output. -.TP -.B \-bmp -Select BMP output format (Windows flavor). 8-bit colormapped format is -emitted if -.B \-colors -or -.B \-grayscale -is specified, or if the JPEG file is gray-scale; otherwise, 24-bit full-color -format is emitted. -.TP -.B \-gif -Select GIF output format. Since GIF does not support more than 256 colors, -.B \-colors 256 -is assumed (unless you specify a smaller number of colors). -.TP -.B \-os2 -Select BMP output format (OS/2 1.x flavor). 8-bit colormapped format is -emitted if -.B \-colors -or -.B \-grayscale -is specified, or if the JPEG file is gray-scale; otherwise, 24-bit full-color -format is emitted. -.TP -.B \-pnm -Select PBMPLUS (PPM/PGM) output format (this is the default format). -PGM is emitted if the JPEG file is gray-scale or if -.B \-grayscale -is specified; otherwise PPM is emitted. -.TP -.B \-rle -Select RLE output format. (Requires URT library.) -.TP -.B \-targa -Select Targa output format. Gray-scale format is emitted if the JPEG file is -gray-scale or if -.B \-grayscale -is specified; otherwise, colormapped format is emitted if -.B \-colors -is specified; otherwise, 24-bit full-color format is emitted. -.PP -Switches for advanced users: -.TP -.B \-dct int -Use integer DCT method (default). -.TP -.B \-dct fast -Use fast integer DCT (less accurate). -.TP -.B \-dct float -Use floating-point DCT method. -The float method is very slightly more accurate than the int method, but is -much slower unless your machine has very fast floating-point hardware. Also -note that results of the floating-point method may vary slightly across -machines, while the integer methods should give the same results everywhere. -The fast integer method is much less accurate than the other two. -.TP -.B \-dither fs -Use Floyd-Steinberg dithering in color quantization. -.TP -.B \-dither ordered -Use ordered dithering in color quantization. -.TP -.B \-dither none -Do not use dithering in color quantization. -By default, Floyd-Steinberg dithering is applied when quantizing colors; this -is slow but usually produces the best results. Ordered dither is a compromise -between speed and quality; no dithering is fast but usually looks awful. Note -that these switches have no effect unless color quantization is being done. -Ordered dither is only available in -.B \-onepass -mode. -.TP -.BI \-map " file" -Quantize to the colors used in the specified image file. This is useful for -producing multiple files with identical color maps, or for forcing a -predefined set of colors to be used. The -.I file -must be a GIF or PPM file. This option overrides -.B \-colors -and -.BR \-onepass . -.TP -.B \-nosmooth -Don't use high-quality upsampling. -.TP -.B \-onepass -Use one-pass instead of two-pass color quantization. The one-pass method is -faster and needs less memory, but it produces a lower-quality image. -.B \-onepass -is ignored unless you also say -.B \-colors -.IR N . -Also, the one-pass method is always used for gray-scale output (the two-pass -method is no improvement then). -.TP -.BI \-maxmemory " N" -Set limit for amount of memory to use in processing large images. Value is -in thousands of bytes, or millions of bytes if "M" is attached to the -number. For example, -.B \-max 4m -selects 4000000 bytes. If more space is needed, temporary files will be used. -.TP -.BI \-outfile " name" -Send output image to the named file, not to standard output. -.TP -.B \-verbose -Enable debug printout. More -.BR \-v 's -give more output. Also, version information is printed at startup. -.TP -.B \-debug -Same as -.BR \-verbose . -.SH EXAMPLES -.LP -This example decompresses the JPEG file foo.jpg, quantizes it to -256 colors, and saves the output in 8-bit BMP format in foo.bmp: -.IP -.B djpeg \-colors 256 \-bmp -.I foo.jpg -.B > -.I foo.bmp -.SH HINTS -To get a quick preview of an image, use the -.B \-grayscale -and/or -.B \-scale -switches. -.B \-grayscale \-scale 1/8 -is the fastest case. -.PP -Several options are available that trade off image quality to gain speed. -.B \-fast -turns on the recommended settings. -.PP -.B \-dct fast -and/or -.B \-nosmooth -gain speed at a small sacrifice in quality. -When producing a color-quantized image, -.B \-onepass \-dither ordered -is fast but much lower quality than the default behavior. -.B \-dither none -may give acceptable results in two-pass mode, but is seldom tolerable in -one-pass mode. -.PP -If you are fortunate enough to have very fast floating point hardware, -\fB\-dct float\fR may be even faster than \fB\-dct fast\fR. But on most -machines \fB\-dct float\fR is slower than \fB\-dct int\fR; in this case it is -not worth using, because its theoretical accuracy advantage is too small to be -significant in practice. -.SH ENVIRONMENT -.TP -.B JPEGMEM -If this environment variable is set, its value is the default memory limit. -The value is specified as described for the -.B \-maxmemory -switch. -.B JPEGMEM -overrides the default value specified when the program was compiled, and -itself is overridden by an explicit -.BR \-maxmemory . -.SH SEE ALSO -.BR cjpeg (1), -.BR jpegtran (1), -.BR rdjpgcom (1), -.BR wrjpgcom (1) -.br -.BR ppm (5), -.BR pgm (5) -.br -Wallace, Gregory K. "The JPEG Still Picture Compression Standard", -Communications of the ACM, April 1991 (vol. 34, no. 4), pp. 30-44. -.SH AUTHOR -Independent JPEG Group -.SH BUGS -To avoid the Unisys LZW patent, -.B djpeg -produces uncompressed GIF files. These are larger than they should be, but -are readable by standard GIF decoders. diff --git a/jpg/djpeg.c b/jpg/djpeg.c deleted file mode 100644 index bc544dc..0000000 --- a/jpg/djpeg.c +++ /dev/null @@ -1,617 +0,0 @@ -/* - * djpeg.c - * - * Copyright (C) 1991-1997, Thomas G. Lane. - * Modified 2009 by Guido Vollbeding. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file contains a command-line user interface for the JPEG decompressor. - * It should work on any system with Unix- or MS-DOS-style command lines. - * - * Two different command line styles are permitted, depending on the - * compile-time switch TWO_FILE_COMMANDLINE: - * djpeg [options] inputfile outputfile - * djpeg [options] [inputfile] - * In the second style, output is always to standard output, which you'd - * normally redirect to a file or pipe to some other program. Input is - * either from a named file or from standard input (typically redirected). - * The second style is convenient on Unix but is unhelpful on systems that - * don't support pipes. Also, you MUST use the first style if your system - * doesn't do binary I/O to stdin/stdout. - * To simplify script writing, the "-outfile" switch is provided. The syntax - * djpeg [options] -outfile outputfile inputfile - * works regardless of which command line style is used. - */ - -#include "cdjpeg.h" /* Common decls for cjpeg/djpeg applications */ -#include "jversion.h" /* for version message */ - -#include /* to declare isprint() */ - -#ifdef USE_CCOMMAND /* command-line reader for Macintosh */ -#ifdef __MWERKS__ -#include /* Metrowerks needs this */ -#include /* ... and this */ -#endif -#ifdef THINK_C -#include /* Think declares it here */ -#endif -#endif - - -/* Create the add-on message string table. */ - -#define JMESSAGE(code,string) string , - -static const char * const cdjpeg_message_table[] = { -#include "cderror.h" - NULL -}; - - -/* - * This list defines the known output image formats - * (not all of which need be supported by a given version). - * You can change the default output format by defining DEFAULT_FMT; - * indeed, you had better do so if you undefine PPM_SUPPORTED. - */ - -typedef enum { - FMT_BMP, /* BMP format (Windows flavor) */ - FMT_GIF, /* GIF format */ - FMT_OS2, /* BMP format (OS/2 flavor) */ - FMT_PPM, /* PPM/PGM (PBMPLUS formats) */ - FMT_RLE, /* RLE format */ - FMT_TARGA, /* Targa format */ - FMT_TIFF /* TIFF format */ -} IMAGE_FORMATS; - -#ifndef DEFAULT_FMT /* so can override from CFLAGS in Makefile */ -#define DEFAULT_FMT FMT_PPM -#endif - -static IMAGE_FORMATS requested_fmt; - - -/* - * Argument-parsing code. - * The switch parser is designed to be useful with DOS-style command line - * syntax, ie, intermixed switches and file names, where only the switches - * to the left of a given file name affect processing of that file. - * The main program in this file doesn't actually use this capability... - */ - - -static const char * progname; /* program name for error messages */ -static char * outfilename; /* for -outfile switch */ - - -LOCAL(void) -usage (void) -/* complain about bad command line */ -{ - fprintf(stderr, "usage: %s [switches] ", progname); -#ifdef TWO_FILE_COMMANDLINE - fprintf(stderr, "inputfile outputfile\n"); -#else - fprintf(stderr, "[inputfile]\n"); -#endif - - fprintf(stderr, "Switches (names may be abbreviated):\n"); - fprintf(stderr, " -colors N Reduce image to no more than N colors\n"); - fprintf(stderr, " -fast Fast, low-quality processing\n"); - fprintf(stderr, " -grayscale Force grayscale output\n"); -#ifdef IDCT_SCALING_SUPPORTED - fprintf(stderr, " -scale M/N Scale output image by fraction M/N, eg, 1/8\n"); -#endif -#ifdef BMP_SUPPORTED - fprintf(stderr, " -bmp Select BMP output format (Windows style)%s\n", - (DEFAULT_FMT == FMT_BMP ? " (default)" : "")); -#endif -#ifdef GIF_SUPPORTED - fprintf(stderr, " -gif Select GIF output format%s\n", - (DEFAULT_FMT == FMT_GIF ? " (default)" : "")); -#endif -#ifdef BMP_SUPPORTED - fprintf(stderr, " -os2 Select BMP output format (OS/2 style)%s\n", - (DEFAULT_FMT == FMT_OS2 ? " (default)" : "")); -#endif -#ifdef PPM_SUPPORTED - fprintf(stderr, " -pnm Select PBMPLUS (PPM/PGM) output format%s\n", - (DEFAULT_FMT == FMT_PPM ? " (default)" : "")); -#endif -#ifdef RLE_SUPPORTED - fprintf(stderr, " -rle Select Utah RLE output format%s\n", - (DEFAULT_FMT == FMT_RLE ? " (default)" : "")); -#endif -#ifdef TARGA_SUPPORTED - fprintf(stderr, " -targa Select Targa output format%s\n", - (DEFAULT_FMT == FMT_TARGA ? " (default)" : "")); -#endif - fprintf(stderr, "Switches for advanced users:\n"); -#ifdef DCT_ISLOW_SUPPORTED - fprintf(stderr, " -dct int Use integer DCT method%s\n", - (JDCT_DEFAULT == JDCT_ISLOW ? " (default)" : "")); -#endif -#ifdef DCT_IFAST_SUPPORTED - fprintf(stderr, " -dct fast Use fast integer DCT (less accurate)%s\n", - (JDCT_DEFAULT == JDCT_IFAST ? " (default)" : "")); -#endif -#ifdef DCT_FLOAT_SUPPORTED - fprintf(stderr, " -dct float Use floating-point DCT method%s\n", - (JDCT_DEFAULT == JDCT_FLOAT ? " (default)" : "")); -#endif - fprintf(stderr, " -dither fs Use F-S dithering (default)\n"); - fprintf(stderr, " -dither none Don't use dithering in quantization\n"); - fprintf(stderr, " -dither ordered Use ordered dither (medium speed, quality)\n"); -#ifdef QUANT_2PASS_SUPPORTED - fprintf(stderr, " -map FILE Map to colors used in named image file\n"); -#endif - fprintf(stderr, " -nosmooth Don't use high-quality upsampling\n"); -#ifdef QUANT_1PASS_SUPPORTED - fprintf(stderr, " -onepass Use 1-pass quantization (fast, low quality)\n"); -#endif - fprintf(stderr, " -maxmemory N Maximum memory to use (in kbytes)\n"); - fprintf(stderr, " -outfile name Specify name for output file\n"); - fprintf(stderr, " -verbose or -debug Emit debug output\n"); - exit(EXIT_FAILURE); -} - - -LOCAL(int) -parse_switches (j_decompress_ptr cinfo, int argc, char **argv, - int last_file_arg_seen, boolean for_real) -/* Parse optional switches. - * Returns argv[] index of first file-name argument (== argc if none). - * Any file names with indexes <= last_file_arg_seen are ignored; - * they have presumably been processed in a previous iteration. - * (Pass 0 for last_file_arg_seen on the first or only iteration.) - * for_real is FALSE on the first (dummy) pass; we may skip any expensive - * processing. - */ -{ - int argn; - char * arg; - - /* Set up default JPEG parameters. */ - requested_fmt = DEFAULT_FMT; /* set default output file format */ - outfilename = NULL; - cinfo->err->trace_level = 0; - - /* Scan command line options, adjust parameters */ - - for (argn = 1; argn < argc; argn++) { - arg = argv[argn]; - if (*arg != '-') { - /* Not a switch, must be a file name argument */ - if (argn <= last_file_arg_seen) { - outfilename = NULL; /* -outfile applies to just one input file */ - continue; /* ignore this name if previously processed */ - } - break; /* else done parsing switches */ - } - arg++; /* advance past switch marker character */ - - if (keymatch(arg, "bmp", 1)) { - /* BMP output format. */ - requested_fmt = FMT_BMP; - - } else if (keymatch(arg, "colors", 1) || keymatch(arg, "colours", 1) || - keymatch(arg, "quantize", 1) || keymatch(arg, "quantise", 1)) { - /* Do color quantization. */ - int val; - - if (++argn >= argc) /* advance to next argument */ - usage(); - if (sscanf(argv[argn], "%d", &val) != 1) - usage(); - cinfo->desired_number_of_colors = val; - cinfo->quantize_colors = TRUE; - - } else if (keymatch(arg, "dct", 2)) { - /* Select IDCT algorithm. */ - if (++argn >= argc) /* advance to next argument */ - usage(); - if (keymatch(argv[argn], "int", 1)) { - cinfo->dct_method = JDCT_ISLOW; - } else if (keymatch(argv[argn], "fast", 2)) { - cinfo->dct_method = JDCT_IFAST; - } else if (keymatch(argv[argn], "float", 2)) { - cinfo->dct_method = JDCT_FLOAT; - } else - usage(); - - } else if (keymatch(arg, "dither", 2)) { - /* Select dithering algorithm. */ - if (++argn >= argc) /* advance to next argument */ - usage(); - if (keymatch(argv[argn], "fs", 2)) { - cinfo->dither_mode = JDITHER_FS; - } else if (keymatch(argv[argn], "none", 2)) { - cinfo->dither_mode = JDITHER_NONE; - } else if (keymatch(argv[argn], "ordered", 2)) { - cinfo->dither_mode = JDITHER_ORDERED; - } else - usage(); - - } else if (keymatch(arg, "debug", 1) || keymatch(arg, "verbose", 1)) { - /* Enable debug printouts. */ - /* On first -d, print version identification */ - static boolean printed_version = FALSE; - - if (! printed_version) { - fprintf(stderr, "Independent JPEG Group's DJPEG, version %s\n%s\n", - JVERSION, JCOPYRIGHT); - printed_version = TRUE; - } - cinfo->err->trace_level++; - - } else if (keymatch(arg, "fast", 1)) { - /* Select recommended processing options for quick-and-dirty output. */ - cinfo->two_pass_quantize = FALSE; - cinfo->dither_mode = JDITHER_ORDERED; - if (! cinfo->quantize_colors) /* don't override an earlier -colors */ - cinfo->desired_number_of_colors = 216; - cinfo->dct_method = JDCT_FASTEST; - cinfo->do_fancy_upsampling = FALSE; - - } else if (keymatch(arg, "gif", 1)) { - /* GIF output format. */ - requested_fmt = FMT_GIF; - - } else if (keymatch(arg, "grayscale", 2) || keymatch(arg, "greyscale",2)) { - /* Force monochrome output. */ - cinfo->out_color_space = JCS_GRAYSCALE; - - } else if (keymatch(arg, "map", 3)) { - /* Quantize to a color map taken from an input file. */ - if (++argn >= argc) /* advance to next argument */ - usage(); - if (for_real) { /* too expensive to do twice! */ -#ifdef QUANT_2PASS_SUPPORTED /* otherwise can't quantize to supplied map */ - FILE * mapfile; - - if ((mapfile = fopen(argv[argn], READ_BINARY)) == NULL) { - fprintf(stderr, "%s: can't open %s\n", progname, argv[argn]); - exit(EXIT_FAILURE); - } - read_color_map(cinfo, mapfile); - fclose(mapfile); - cinfo->quantize_colors = TRUE; -#else - ERREXIT(cinfo, JERR_NOT_COMPILED); -#endif - } - - } else if (keymatch(arg, "maxmemory", 3)) { - /* Maximum memory in Kb (or Mb with 'm'). */ - long lval; - char ch = 'x'; - - if (++argn >= argc) /* advance to next argument */ - usage(); - if (sscanf(argv[argn], "%ld%c", &lval, &ch) < 1) - usage(); - if (ch == 'm' || ch == 'M') - lval *= 1000L; - cinfo->mem->max_memory_to_use = lval * 1000L; - - } else if (keymatch(arg, "nosmooth", 3)) { - /* Suppress fancy upsampling */ - cinfo->do_fancy_upsampling = FALSE; - - } else if (keymatch(arg, "onepass", 3)) { - /* Use fast one-pass quantization. */ - cinfo->two_pass_quantize = FALSE; - - } else if (keymatch(arg, "os2", 3)) { - /* BMP output format (OS/2 flavor). */ - requested_fmt = FMT_OS2; - - } else if (keymatch(arg, "outfile", 4)) { - /* Set output file name. */ - if (++argn >= argc) /* advance to next argument */ - usage(); - outfilename = argv[argn]; /* save it away for later use */ - - } else if (keymatch(arg, "pnm", 1) || keymatch(arg, "ppm", 1)) { - /* PPM/PGM output format. */ - requested_fmt = FMT_PPM; - - } else if (keymatch(arg, "rle", 1)) { - /* RLE output format. */ - requested_fmt = FMT_RLE; - - } else if (keymatch(arg, "scale", 1)) { - /* Scale the output image by a fraction M/N. */ - if (++argn >= argc) /* advance to next argument */ - usage(); - if (sscanf(argv[argn], "%d/%d", - &cinfo->scale_num, &cinfo->scale_denom) < 1) - usage(); - - } else if (keymatch(arg, "targa", 1)) { - /* Targa output format. */ - requested_fmt = FMT_TARGA; - - } else { - usage(); /* bogus switch */ - } - } - - return argn; /* return index of next arg (file name) */ -} - - -/* - * Marker processor for COM and interesting APPn markers. - * This replaces the library's built-in processor, which just skips the marker. - * We want to print out the marker as text, to the extent possible. - * Note this code relies on a non-suspending data source. - */ - -LOCAL(unsigned int) -jpeg_getc (j_decompress_ptr cinfo) -/* Read next byte */ -{ - struct jpeg_source_mgr * datasrc = cinfo->src; - - if (datasrc->bytes_in_buffer == 0) { - if (! (*datasrc->fill_input_buffer) (cinfo)) - ERREXIT(cinfo, JERR_CANT_SUSPEND); - } - datasrc->bytes_in_buffer--; - return GETJOCTET(*datasrc->next_input_byte++); -} - - -METHODDEF(boolean) -print_text_marker (j_decompress_ptr cinfo) -{ - boolean traceit = (cinfo->err->trace_level >= 1); - INT32 length; - unsigned int ch; - unsigned int lastch = 0; - - length = jpeg_getc(cinfo) << 8; - length += jpeg_getc(cinfo); - length -= 2; /* discount the length word itself */ - - if (traceit) { - if (cinfo->unread_marker == JPEG_COM) - fprintf(stderr, "Comment, length %ld:\n", (long) length); - else /* assume it is an APPn otherwise */ - fprintf(stderr, "APP%d, length %ld:\n", - cinfo->unread_marker - JPEG_APP0, (long) length); - } - - while (--length >= 0) { - ch = jpeg_getc(cinfo); - if (traceit) { - /* Emit the character in a readable form. - * Nonprintables are converted to \nnn form, - * while \ is converted to \\. - * Newlines in CR, CR/LF, or LF form will be printed as one newline. - */ - if (ch == '\r') { - fprintf(stderr, "\n"); - } else if (ch == '\n') { - if (lastch != '\r') - fprintf(stderr, "\n"); - } else if (ch == '\\') { - fprintf(stderr, "\\\\"); - } else if (isprint(ch)) { - putc(ch, stderr); - } else { - fprintf(stderr, "\\%03o", ch); - } - lastch = ch; - } - } - - if (traceit) - fprintf(stderr, "\n"); - - return TRUE; -} - - -/* - * The main program. - */ - -int -main (int argc, char **argv) -{ - struct jpeg_decompress_struct cinfo; - struct jpeg_error_mgr jerr; -#ifdef PROGRESS_REPORT - struct cdjpeg_progress_mgr progress; -#endif - int file_index; - djpeg_dest_ptr dest_mgr = NULL; - FILE * input_file; - FILE * output_file; - JDIMENSION num_scanlines; - - /* On Mac, fetch a command line. */ -#ifdef USE_CCOMMAND - argc = ccommand(&argv); -#endif - - progname = argv[0]; - if (progname == NULL || progname[0] == 0) - progname = "djpeg"; /* in case C library doesn't provide it */ - - /* Initialize the JPEG decompression object with default error handling. */ - cinfo.err = jpeg_std_error(&jerr); - jpeg_create_decompress(&cinfo); - /* Add some application-specific error messages (from cderror.h) */ - jerr.addon_message_table = cdjpeg_message_table; - jerr.first_addon_message = JMSG_FIRSTADDONCODE; - jerr.last_addon_message = JMSG_LASTADDONCODE; - - /* Insert custom marker processor for COM and APP12. - * APP12 is used by some digital camera makers for textual info, - * so we provide the ability to display it as text. - * If you like, additional APPn marker types can be selected for display, - * but don't try to override APP0 or APP14 this way (see libjpeg.doc). - */ - jpeg_set_marker_processor(&cinfo, JPEG_COM, print_text_marker); - jpeg_set_marker_processor(&cinfo, JPEG_APP0+12, print_text_marker); - - /* Now safe to enable signal catcher. */ -#ifdef NEED_SIGNAL_CATCHER - enable_signal_catcher((j_common_ptr) &cinfo); -#endif - - /* Scan command line to find file names. */ - /* It is convenient to use just one switch-parsing routine, but the switch - * values read here are ignored; we will rescan the switches after opening - * the input file. - * (Exception: tracing level set here controls verbosity for COM markers - * found during jpeg_read_header...) - */ - - file_index = parse_switches(&cinfo, argc, argv, 0, FALSE); - -#ifdef TWO_FILE_COMMANDLINE - /* Must have either -outfile switch or explicit output file name */ - if (outfilename == NULL) { - if (file_index != argc-2) { - fprintf(stderr, "%s: must name one input and one output file\n", - progname); - usage(); - } - outfilename = argv[file_index+1]; - } else { - if (file_index != argc-1) { - fprintf(stderr, "%s: must name one input and one output file\n", - progname); - usage(); - } - } -#else - /* Unix style: expect zero or one file name */ - if (file_index < argc-1) { - fprintf(stderr, "%s: only one input file\n", progname); - usage(); - } -#endif /* TWO_FILE_COMMANDLINE */ - - /* Open the input file. */ - if (file_index < argc) { - if ((input_file = fopen(argv[file_index], READ_BINARY)) == NULL) { - fprintf(stderr, "%s: can't open %s\n", progname, argv[file_index]); - exit(EXIT_FAILURE); - } - } else { - /* default input file is stdin */ - input_file = read_stdin(); - } - - /* Open the output file. */ - if (outfilename != NULL) { - if ((output_file = fopen(outfilename, WRITE_BINARY)) == NULL) { - fprintf(stderr, "%s: can't open %s\n", progname, outfilename); - exit(EXIT_FAILURE); - } - } else { - /* default output file is stdout */ - output_file = write_stdout(); - } - -#ifdef PROGRESS_REPORT - start_progress_monitor((j_common_ptr) &cinfo, &progress); -#endif - - /* Specify data source for decompression */ - jpeg_stdio_src(&cinfo, input_file); - - /* Read file header, set default decompression parameters */ - (void) jpeg_read_header(&cinfo, TRUE); - - /* Adjust default decompression parameters by re-parsing the options */ - file_index = parse_switches(&cinfo, argc, argv, 0, TRUE); - - /* Initialize the output module now to let it override any crucial - * option settings (for instance, GIF wants to force color quantization). - */ - switch (requested_fmt) { -#ifdef BMP_SUPPORTED - case FMT_BMP: - dest_mgr = jinit_write_bmp(&cinfo, FALSE); - break; - case FMT_OS2: - dest_mgr = jinit_write_bmp(&cinfo, TRUE); - break; -#endif -#ifdef GIF_SUPPORTED - case FMT_GIF: - dest_mgr = jinit_write_gif(&cinfo); - break; -#endif -#ifdef PPM_SUPPORTED - case FMT_PPM: - dest_mgr = jinit_write_ppm(&cinfo); - break; -#endif -#ifdef RLE_SUPPORTED - case FMT_RLE: - dest_mgr = jinit_write_rle(&cinfo); - break; -#endif -#ifdef TARGA_SUPPORTED - case FMT_TARGA: - dest_mgr = jinit_write_targa(&cinfo); - break; -#endif - default: - ERREXIT(&cinfo, JERR_UNSUPPORTED_FORMAT); - break; - } - dest_mgr->output_file = output_file; - - /* Start decompressor */ - (void) jpeg_start_decompress(&cinfo); - - /* Write output file header */ - (*dest_mgr->start_output) (&cinfo, dest_mgr); - - /* Process data */ - while (cinfo.output_scanline < cinfo.output_height) { - num_scanlines = jpeg_read_scanlines(&cinfo, dest_mgr->buffer, - dest_mgr->buffer_height); - (*dest_mgr->put_pixel_rows) (&cinfo, dest_mgr, num_scanlines); - } - -#ifdef PROGRESS_REPORT - /* Hack: count final pass as done in case finish_output does an extra pass. - * The library won't have updated completed_passes. - */ - progress.pub.completed_passes = progress.pub.total_passes; -#endif - - /* Finish decompression and release memory. - * I must do it in this order because output module has allocated memory - * of lifespan JPOOL_IMAGE; it needs to finish before releasing memory. - */ - (*dest_mgr->finish_output) (&cinfo, dest_mgr); - (void) jpeg_finish_decompress(&cinfo); - jpeg_destroy_decompress(&cinfo); - - /* Close files, if we opened them */ - if (input_file != stdin) - fclose(input_file); - if (output_file != stdout) - fclose(output_file); - -#ifdef PROGRESS_REPORT - end_progress_monitor((j_common_ptr) &cinfo); -#endif - - /* All done. */ - exit(jerr.num_warnings ? EXIT_WARNING : EXIT_SUCCESS); - return 0; /* suppress no-return-value warnings */ -} diff --git a/jpg/example.c b/jpg/example.c deleted file mode 100644 index 1d6f6cc..0000000 --- a/jpg/example.c +++ /dev/null @@ -1,433 +0,0 @@ -/* - * example.c - * - * This file illustrates how to use the IJG code as a subroutine library - * to read or write JPEG image files. You should look at this code in - * conjunction with the documentation file libjpeg.txt. - * - * This code will not do anything useful as-is, but it may be helpful as a - * skeleton for constructing routines that call the JPEG library. - * - * We present these routines in the same coding style used in the JPEG code - * (ANSI function definitions, etc); but you are of course free to code your - * routines in a different style if you prefer. - */ - -#include - -/* - * Include file for users of JPEG library. - * You will need to have included system headers that define at least - * the typedefs FILE and size_t before you can include jpeglib.h. - * (stdio.h is sufficient on ANSI-conforming systems.) - * You may also wish to include "jerror.h". - */ - -#include "jpeglib.h" - -/* - * is used for the optional error recovery mechanism shown in - * the second part of the example. - */ - -#include - - - -/******************** JPEG COMPRESSION SAMPLE INTERFACE *******************/ - -/* This half of the example shows how to feed data into the JPEG compressor. - * We present a minimal version that does not worry about refinements such - * as error recovery (the JPEG code will just exit() if it gets an error). - */ - - -/* - * IMAGE DATA FORMATS: - * - * The standard input image format is a rectangular array of pixels, with - * each pixel having the same number of "component" values (color channels). - * Each pixel row is an array of JSAMPLEs (which typically are unsigned chars). - * If you are working with color data, then the color values for each pixel - * must be adjacent in the row; for example, R,G,B,R,G,B,R,G,B,... for 24-bit - * RGB color. - * - * For this example, we'll assume that this data structure matches the way - * our application has stored the image in memory, so we can just pass a - * pointer to our image buffer. In particular, let's say that the image is - * RGB color and is described by: - */ - -extern JSAMPLE * image_buffer; /* Points to large array of R,G,B-order data */ -extern int image_height; /* Number of rows in image */ -extern int image_width; /* Number of columns in image */ - - -/* - * Sample routine for JPEG compression. We assume that the target file name - * and a compression quality factor are passed in. - */ - -GLOBAL(void) -write_JPEG_file (char * filename, int quality) -{ - /* This struct contains the JPEG compression parameters and pointers to - * working space (which is allocated as needed by the JPEG library). - * It is possible to have several such structures, representing multiple - * compression/decompression processes, in existence at once. We refer - * to any one struct (and its associated working data) as a "JPEG object". - */ - struct jpeg_compress_struct cinfo; - /* This struct represents a JPEG error handler. It is declared separately - * because applications often want to supply a specialized error handler - * (see the second half of this file for an example). But here we just - * take the easy way out and use the standard error handler, which will - * print a message on stderr and call exit() if compression fails. - * Note that this struct must live as long as the main JPEG parameter - * struct, to avoid dangling-pointer problems. - */ - struct jpeg_error_mgr jerr; - /* More stuff */ - FILE * outfile; /* target file */ - JSAMPROW row_pointer[1]; /* pointer to JSAMPLE row[s] */ - int row_stride; /* physical row width in image buffer */ - - /* Step 1: allocate and initialize JPEG compression object */ - - /* We have to set up the error handler first, in case the initialization - * step fails. (Unlikely, but it could happen if you are out of memory.) - * This routine fills in the contents of struct jerr, and returns jerr's - * address which we place into the link field in cinfo. - */ - cinfo.err = jpeg_std_error(&jerr); - /* Now we can initialize the JPEG compression object. */ - jpeg_create_compress(&cinfo); - - /* Step 2: specify data destination (eg, a file) */ - /* Note: steps 2 and 3 can be done in either order. */ - - /* Here we use the library-supplied code to send compressed data to a - * stdio stream. You can also write your own code to do something else. - * VERY IMPORTANT: use "b" option to fopen() if you are on a machine that - * requires it in order to write binary files. - */ - if ((outfile = fopen(filename, "wb")) == NULL) { - fprintf(stderr, "can't open %s\n", filename); - exit(1); - } - jpeg_stdio_dest(&cinfo, outfile); - - /* Step 3: set parameters for compression */ - - /* First we supply a description of the input image. - * Four fields of the cinfo struct must be filled in: - */ - cinfo.image_width = image_width; /* image width and height, in pixels */ - cinfo.image_height = image_height; - cinfo.input_components = 3; /* # of color components per pixel */ - cinfo.in_color_space = JCS_RGB; /* colorspace of input image */ - /* Now use the library's routine to set default compression parameters. - * (You must set at least cinfo.in_color_space before calling this, - * since the defaults depend on the source color space.) - */ - jpeg_set_defaults(&cinfo); - /* Now you can set any non-default parameters you wish to. - * Here we just illustrate the use of quality (quantization table) scaling: - */ - jpeg_set_quality(&cinfo, quality, TRUE /* limit to baseline-JPEG values */); - - /* Step 4: Start compressor */ - - /* TRUE ensures that we will write a complete interchange-JPEG file. - * Pass TRUE unless you are very sure of what you're doing. - */ - jpeg_start_compress(&cinfo, TRUE); - - /* Step 5: while (scan lines remain to be written) */ - /* jpeg_write_scanlines(...); */ - - /* Here we use the library's state variable cinfo.next_scanline as the - * loop counter, so that we don't have to keep track ourselves. - * To keep things simple, we pass one scanline per call; you can pass - * more if you wish, though. - */ - row_stride = image_width * 3; /* JSAMPLEs per row in image_buffer */ - - while (cinfo.next_scanline < cinfo.image_height) { - /* jpeg_write_scanlines expects an array of pointers to scanlines. - * Here the array is only one element long, but you could pass - * more than one scanline at a time if that's more convenient. - */ - row_pointer[0] = & image_buffer[cinfo.next_scanline * row_stride]; - (void) jpeg_write_scanlines(&cinfo, row_pointer, 1); - } - - /* Step 6: Finish compression */ - - jpeg_finish_compress(&cinfo); - /* After finish_compress, we can close the output file. */ - fclose(outfile); - - /* Step 7: release JPEG compression object */ - - /* This is an important step since it will release a good deal of memory. */ - jpeg_destroy_compress(&cinfo); - - /* And we're done! */ -} - - -/* - * SOME FINE POINTS: - * - * In the above loop, we ignored the return value of jpeg_write_scanlines, - * which is the number of scanlines actually written. We could get away - * with this because we were only relying on the value of cinfo.next_scanline, - * which will be incremented correctly. If you maintain additional loop - * variables then you should be careful to increment them properly. - * Actually, for output to a stdio stream you needn't worry, because - * then jpeg_write_scanlines will write all the lines passed (or else exit - * with a fatal error). Partial writes can only occur if you use a data - * destination module that can demand suspension of the compressor. - * (If you don't know what that's for, you don't need it.) - * - * If the compressor requires full-image buffers (for entropy-coding - * optimization or a multi-scan JPEG file), it will create temporary - * files for anything that doesn't fit within the maximum-memory setting. - * (Note that temp files are NOT needed if you use the default parameters.) - * On some systems you may need to set up a signal handler to ensure that - * temporary files are deleted if the program is interrupted. See libjpeg.txt. - * - * Scanlines MUST be supplied in top-to-bottom order if you want your JPEG - * files to be compatible with everyone else's. If you cannot readily read - * your data in that order, you'll need an intermediate array to hold the - * image. See rdtarga.c or rdbmp.c for examples of handling bottom-to-top - * source data using the JPEG code's internal virtual-array mechanisms. - */ - - - -/******************** JPEG DECOMPRESSION SAMPLE INTERFACE *******************/ - -/* This half of the example shows how to read data from the JPEG decompressor. - * It's a bit more refined than the above, in that we show: - * (a) how to modify the JPEG library's standard error-reporting behavior; - * (b) how to allocate workspace using the library's memory manager. - * - * Just to make this example a little different from the first one, we'll - * assume that we do not intend to put the whole image into an in-memory - * buffer, but to send it line-by-line someplace else. We need a one- - * scanline-high JSAMPLE array as a work buffer, and we will let the JPEG - * memory manager allocate it for us. This approach is actually quite useful - * because we don't need to remember to deallocate the buffer separately: it - * will go away automatically when the JPEG object is cleaned up. - */ - - -/* - * ERROR HANDLING: - * - * The JPEG library's standard error handler (jerror.c) is divided into - * several "methods" which you can override individually. This lets you - * adjust the behavior without duplicating a lot of code, which you might - * have to update with each future release. - * - * Our example here shows how to override the "error_exit" method so that - * control is returned to the library's caller when a fatal error occurs, - * rather than calling exit() as the standard error_exit method does. - * - * We use C's setjmp/longjmp facility to return control. This means that the - * routine which calls the JPEG library must first execute a setjmp() call to - * establish the return point. We want the replacement error_exit to do a - * longjmp(). But we need to make the setjmp buffer accessible to the - * error_exit routine. To do this, we make a private extension of the - * standard JPEG error handler object. (If we were using C++, we'd say we - * were making a subclass of the regular error handler.) - * - * Here's the extended error handler struct: - */ - -struct my_error_mgr { - struct jpeg_error_mgr pub; /* "public" fields */ - - jmp_buf setjmp_buffer; /* for return to caller */ -}; - -typedef struct my_error_mgr * my_error_ptr; - -/* - * Here's the routine that will replace the standard error_exit method: - */ - -METHODDEF(void) -my_error_exit (j_common_ptr cinfo) -{ - /* cinfo->err really points to a my_error_mgr struct, so coerce pointer */ - my_error_ptr myerr = (my_error_ptr) cinfo->err; - - /* Always display the message. */ - /* We could postpone this until after returning, if we chose. */ - (*cinfo->err->output_message) (cinfo); - - /* Return control to the setjmp point */ - longjmp(myerr->setjmp_buffer, 1); -} - - -/* - * Sample routine for JPEG decompression. We assume that the source file name - * is passed in. We want to return 1 on success, 0 on error. - */ - - -GLOBAL(int) -read_JPEG_file (char * filename) -{ - /* This struct contains the JPEG decompression parameters and pointers to - * working space (which is allocated as needed by the JPEG library). - */ - struct jpeg_decompress_struct cinfo; - /* We use our private extension JPEG error handler. - * Note that this struct must live as long as the main JPEG parameter - * struct, to avoid dangling-pointer problems. - */ - struct my_error_mgr jerr; - /* More stuff */ - FILE * infile; /* source file */ - JSAMPARRAY buffer; /* Output row buffer */ - int row_stride; /* physical row width in output buffer */ - - /* In this example we want to open the input file before doing anything else, - * so that the setjmp() error recovery below can assume the file is open. - * VERY IMPORTANT: use "b" option to fopen() if you are on a machine that - * requires it in order to read binary files. - */ - - if ((infile = fopen(filename, "rb")) == NULL) { - fprintf(stderr, "can't open %s\n", filename); - return 0; - } - - /* Step 1: allocate and initialize JPEG decompression object */ - - /* We set up the normal JPEG error routines, then override error_exit. */ - cinfo.err = jpeg_std_error(&jerr.pub); - jerr.pub.error_exit = my_error_exit; - /* Establish the setjmp return context for my_error_exit to use. */ - if (setjmp(jerr.setjmp_buffer)) { - /* If we get here, the JPEG code has signaled an error. - * We need to clean up the JPEG object, close the input file, and return. - */ - jpeg_destroy_decompress(&cinfo); - fclose(infile); - return 0; - } - /* Now we can initialize the JPEG decompression object. */ - jpeg_create_decompress(&cinfo); - - /* Step 2: specify data source (eg, a file) */ - - jpeg_stdio_src(&cinfo, infile); - - /* Step 3: read file parameters with jpeg_read_header() */ - - (void) jpeg_read_header(&cinfo, TRUE); - /* We can ignore the return value from jpeg_read_header since - * (a) suspension is not possible with the stdio data source, and - * (b) we passed TRUE to reject a tables-only JPEG file as an error. - * See libjpeg.txt for more info. - */ - - /* Step 4: set parameters for decompression */ - - /* In this example, we don't need to change any of the defaults set by - * jpeg_read_header(), so we do nothing here. - */ - - /* Step 5: Start decompressor */ - - (void) jpeg_start_decompress(&cinfo); - /* We can ignore the return value since suspension is not possible - * with the stdio data source. - */ - - /* We may need to do some setup of our own at this point before reading - * the data. After jpeg_start_decompress() we have the correct scaled - * output image dimensions available, as well as the output colormap - * if we asked for color quantization. - * In this example, we need to make an output work buffer of the right size. - */ - /* JSAMPLEs per row in output buffer */ - row_stride = cinfo.output_width * cinfo.output_components; - /* Make a one-row-high sample array that will go away when done with image */ - buffer = (*cinfo.mem->alloc_sarray) - ((j_common_ptr) &cinfo, JPOOL_IMAGE, row_stride, 1); - - /* Step 6: while (scan lines remain to be read) */ - /* jpeg_read_scanlines(...); */ - - /* Here we use the library's state variable cinfo.output_scanline as the - * loop counter, so that we don't have to keep track ourselves. - */ - while (cinfo.output_scanline < cinfo.output_height) { - /* jpeg_read_scanlines expects an array of pointers to scanlines. - * Here the array is only one element long, but you could ask for - * more than one scanline at a time if that's more convenient. - */ - (void) jpeg_read_scanlines(&cinfo, buffer, 1); - /* Assume put_scanline_someplace wants a pointer and sample count. */ - put_scanline_someplace(buffer[0], row_stride); - } - - /* Step 7: Finish decompression */ - - (void) jpeg_finish_decompress(&cinfo); - /* We can ignore the return value since suspension is not possible - * with the stdio data source. - */ - - /* Step 8: Release JPEG decompression object */ - - /* This is an important step since it will release a good deal of memory. */ - jpeg_destroy_decompress(&cinfo); - - /* After finish_decompress, we can close the input file. - * Here we postpone it until after no more JPEG errors are possible, - * so as to simplify the setjmp error logic above. (Actually, I don't - * think that jpeg_destroy can do an error exit, but why assume anything...) - */ - fclose(infile); - - /* At this point you may want to check to see whether any corrupt-data - * warnings occurred (test whether jerr.pub.num_warnings is nonzero). - */ - - /* And we're done! */ - return 1; -} - - -/* - * SOME FINE POINTS: - * - * In the above code, we ignored the return value of jpeg_read_scanlines, - * which is the number of scanlines actually read. We could get away with - * this because we asked for only one line at a time and we weren't using - * a suspending data source. See libjpeg.txt for more info. - * - * We cheated a bit by calling alloc_sarray() after jpeg_start_decompress(); - * we should have done it beforehand to ensure that the space would be - * counted against the JPEG max_memory setting. In some systems the above - * code would risk an out-of-memory error. However, in general we don't - * know the output image dimensions before jpeg_start_decompress(), unless we - * call jpeg_calc_output_dimensions(). See libjpeg.txt for more about this. - * - * Scanlines are returned in the same order as they appear in the JPEG file, - * which is standardly top-to-bottom. If you must emit data bottom-to-top, - * you can use one of the virtual arrays provided by the JPEG memory manager - * to invert the data. See wrbmp.c for an example. - * - * As with compression, some operating modes may require temporary files. - * On some systems you may need to set up a signal handler to ensure that - * temporary files are deleted if the program is interrupted. See libjpeg.txt. - */ diff --git a/jpg/filelist.txt b/jpg/filelist.txt deleted file mode 100644 index 7e05386..0000000 --- a/jpg/filelist.txt +++ /dev/null @@ -1,215 +0,0 @@ -IJG JPEG LIBRARY: FILE LIST - -Copyright (C) 1994-2009, Thomas G. Lane, Guido Vollbeding. -This file is part of the Independent JPEG Group's software. -For conditions of distribution and use, see the accompanying README file. - - -Here is a road map to the files in the IJG JPEG distribution. The -distribution includes the JPEG library proper, plus two application -programs ("cjpeg" and "djpeg") which use the library to convert JPEG -files to and from some other popular image formats. A third application -"jpegtran" uses the library to do lossless conversion between different -variants of JPEG. There are also two stand-alone applications, -"rdjpgcom" and "wrjpgcom". - - -THE JPEG LIBRARY -================ - -Include files: - -jpeglib.h JPEG library's exported data and function declarations. -jconfig.h Configuration declarations. Note: this file is not present - in the distribution; it is generated during installation. -jmorecfg.h Additional configuration declarations; need not be changed - for a standard installation. -jerror.h Declares JPEG library's error and trace message codes. -jinclude.h Central include file used by all IJG .c files to reference - system include files. -jpegint.h JPEG library's internal data structures. -jdct.h Private declarations for forward & reverse DCT subsystems. -jmemsys.h Private declarations for memory management subsystem. -jversion.h Version information. - -Applications using the library should include jpeglib.h (which in turn -includes jconfig.h and jmorecfg.h). Optionally, jerror.h may be included -if the application needs to reference individual JPEG error codes. The -other include files are intended for internal use and would not normally -be included by an application program. (cjpeg/djpeg/etc do use jinclude.h, -since its function is to improve portability of the whole IJG distribution. -Most other applications will directly include the system include files they -want, and hence won't need jinclude.h.) - - -C source code files: - -These files contain most of the functions intended to be called directly by -an application program: - -jcapimin.c Application program interface: core routines for compression. -jcapistd.c Application program interface: standard compression. -jdapimin.c Application program interface: core routines for decompression. -jdapistd.c Application program interface: standard decompression. -jcomapi.c Application program interface routines common to compression - and decompression. -jcparam.c Compression parameter setting helper routines. -jctrans.c API and library routines for transcoding compression. -jdtrans.c API and library routines for transcoding decompression. - -Compression side of the library: - -jcinit.c Initialization: determines which other modules to use. -jcmaster.c Master control: setup and inter-pass sequencing logic. -jcmainct.c Main buffer controller (preprocessor => JPEG compressor). -jcprepct.c Preprocessor buffer controller. -jccoefct.c Buffer controller for DCT coefficient buffer. -jccolor.c Color space conversion. -jcsample.c Downsampling. -jcdctmgr.c DCT manager (DCT implementation selection & control). -jfdctint.c Forward DCT using slow-but-accurate integer method. -jfdctfst.c Forward DCT using faster, less accurate integer method. -jfdctflt.c Forward DCT using floating-point arithmetic. -jchuff.c Huffman entropy coding. -jcarith.c Arithmetic entropy coding. -jcmarker.c JPEG marker writing. -jdatadst.c Data destination managers for memory and stdio output. - -Decompression side of the library: - -jdmaster.c Master control: determines which other modules to use. -jdinput.c Input controller: controls input processing modules. -jdmainct.c Main buffer controller (JPEG decompressor => postprocessor). -jdcoefct.c Buffer controller for DCT coefficient buffer. -jdpostct.c Postprocessor buffer controller. -jdmarker.c JPEG marker reading. -jdhuff.c Huffman entropy decoding. -jdarith.c Arithmetic entropy decoding. -jddctmgr.c IDCT manager (IDCT implementation selection & control). -jidctint.c Inverse DCT using slow-but-accurate integer method. -jidctfst.c Inverse DCT using faster, less accurate integer method. -jidctflt.c Inverse DCT using floating-point arithmetic. -jdsample.c Upsampling. -jdcolor.c Color space conversion. -jdmerge.c Merged upsampling/color conversion (faster, lower quality). -jquant1.c One-pass color quantization using a fixed-spacing colormap. -jquant2.c Two-pass color quantization using a custom-generated colormap. - Also handles one-pass quantization to an externally given map. -jdatasrc.c Data source managers for memory and stdio input. - -Support files for both compression and decompression: - -jaricom.c Tables for common use in arithmetic entropy encoding and - decoding routines. -jerror.c Standard error handling routines (application replaceable). -jmemmgr.c System-independent (more or less) memory management code. -jutils.c Miscellaneous utility routines. - -jmemmgr.c relies on a system-dependent memory management module. The IJG -distribution includes the following implementations of the system-dependent -module: - -jmemnobs.c "No backing store": assumes adequate virtual memory exists. -jmemansi.c Makes temporary files with ANSI-standard routine tmpfile(). -jmemname.c Makes temporary files with program-generated file names. -jmemdos.c Custom implementation for MS-DOS (16-bit environment only): - can use extended and expanded memory as well as temp files. -jmemmac.c Custom implementation for Apple Macintosh. - -Exactly one of the system-dependent modules should be configured into an -installed JPEG library (see install.txt for hints about which one to use). -On unusual systems you may find it worthwhile to make a special -system-dependent memory manager. - - -Non-C source code files: - -jmemdosa.asm 80x86 assembly code support for jmemdos.c; used only in - MS-DOS-specific configurations of the JPEG library. - - -CJPEG/DJPEG/JPEGTRAN -==================== - -Include files: - -cdjpeg.h Declarations shared by cjpeg/djpeg/jpegtran modules. -cderror.h Additional error and trace message codes for cjpeg et al. -transupp.h Declarations for jpegtran support routines in transupp.c. - -C source code files: - -cjpeg.c Main program for cjpeg. -djpeg.c Main program for djpeg. -jpegtran.c Main program for jpegtran. -cdjpeg.c Utility routines used by all three programs. -rdcolmap.c Code to read a colormap file for djpeg's "-map" switch. -rdswitch.c Code to process some of cjpeg's more complex switches. - Also used by jpegtran. -transupp.c Support code for jpegtran: lossless image manipulations. - -Image file reader modules for cjpeg: - -rdbmp.c BMP file input. -rdgif.c GIF file input (now just a stub). -rdppm.c PPM/PGM file input. -rdrle.c Utah RLE file input. -rdtarga.c Targa file input. - -Image file writer modules for djpeg: - -wrbmp.c BMP file output. -wrgif.c GIF file output (a mere shadow of its former self). -wrppm.c PPM/PGM file output. -wrrle.c Utah RLE file output. -wrtarga.c Targa file output. - - -RDJPGCOM/WRJPGCOM -================= - -C source code files: - -rdjpgcom.c Stand-alone rdjpgcom application. -wrjpgcom.c Stand-alone wrjpgcom application. - -These programs do not depend on the IJG library. They do use -jconfig.h and jinclude.h, only to improve portability. - - -ADDITIONAL FILES -================ - -Documentation (see README for a guide to the documentation files): - -README Master documentation file. -*.txt Other documentation files. -*.1 Documentation in Unix man page format. -change.log Version-to-version change highlights. -example.c Sample code for calling JPEG library. - -Configuration/installation files and programs (see install.txt for more info): - -configure Unix shell script to perform automatic configuration. -configure.ac Source file for use with Autoconf to generate configure. -ltmain.sh Support scripts for configure (from GNU libtool). -config.guess -config.sub -depcomp -missing -install-sh Install shell script for those Unix systems lacking one. -Makefile.in Makefile input for configure. -Makefile.am Source file for use with Automake to generate Makefile.in. -ckconfig.c Program to generate jconfig.h on non-Unix systems. -jconfig.txt Template for making jconfig.h by hand. -mak*.* Sample makefiles for particular systems. -jconfig.* Sample jconfig.h for particular systems. -libjpeg.map Script to generate shared library with versioned symbols. -aclocal.m4 M4 macro definitions for use with Autoconf. -ansi2knr.c De-ANSIfier for pre-ANSI C compilers (courtesy of - L. Peter Deutsch and Aladdin Enterprises). - -Test files (see install.txt for test procedure): - -test*.* Source and comparison files for confidence test. - These are binary image files, NOT text files. diff --git a/jpg/install-sh b/jpg/install-sh deleted file mode 100644 index a9244eb..0000000 --- a/jpg/install-sh +++ /dev/null @@ -1,527 +0,0 @@ -#!/bin/sh -# install - install a program, script, or datafile - -scriptversion=2011-01-19.21; # UTC - -# This originates from X11R5 (mit/util/scripts/install.sh), which was -# later released in X11R6 (xc/config/util/install.sh) with the -# following copyright and license. -# -# Copyright (C) 1994 X Consortium -# -# Permission is hereby granted, free of charge, to any person obtaining a copy -# of this software and associated documentation files (the "Software"), to -# deal in the Software without restriction, including without limitation the -# rights to use, copy, modify, merge, publish, distribute, sublicense, and/or -# sell copies of the Software, and to permit persons to whom the Software is -# furnished to do so, subject to the following conditions: -# -# The above copyright notice and this permission notice shall be included in -# all copies or substantial portions of the Software. -# -# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR -# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, -# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE -# X CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN -# AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNEC- -# TION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. -# -# Except as contained in this notice, the name of the X Consortium shall not -# be used in advertising or otherwise to promote the sale, use or other deal- -# ings in this Software without prior written authorization from the X Consor- -# tium. -# -# -# FSF changes to this file are in the public domain. -# -# Calling this script install-sh is preferred over install.sh, to prevent -# `make' implicit rules from creating a file called install from it -# when there is no Makefile. -# -# This script is compatible with the BSD install script, but was written -# from scratch. - -nl=' -' -IFS=" "" $nl" - -# set DOITPROG to echo to test this script - -# Don't use :- since 4.3BSD and earlier shells don't like it. -doit=${DOITPROG-} -if test -z "$doit"; then - doit_exec=exec -else - doit_exec=$doit -fi - -# Put in absolute file names if you don't have them in your path; -# or use environment vars. - -chgrpprog=${CHGRPPROG-chgrp} -chmodprog=${CHMODPROG-chmod} -chownprog=${CHOWNPROG-chown} -cmpprog=${CMPPROG-cmp} -cpprog=${CPPROG-cp} -mkdirprog=${MKDIRPROG-mkdir} -mvprog=${MVPROG-mv} -rmprog=${RMPROG-rm} -stripprog=${STRIPPROG-strip} - -posix_glob='?' -initialize_posix_glob=' - test "$posix_glob" != "?" || { - if (set -f) 2>/dev/null; then - posix_glob= - else - posix_glob=: - fi - } -' - -posix_mkdir= - -# Desired mode of installed file. -mode=0755 - -chgrpcmd= -chmodcmd=$chmodprog -chowncmd= -mvcmd=$mvprog -rmcmd="$rmprog -f" -stripcmd= - -src= -dst= -dir_arg= -dst_arg= - -copy_on_change=false -no_target_directory= - -usage="\ -Usage: $0 [OPTION]... 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In this case, the final cleanup might fail but the new - # file should still install successfully. - { - test ! -f "$dst" || - $doit $rmcmd -f "$dst" 2>/dev/null || - { $doit $mvcmd -f "$dst" "$rmtmp" 2>/dev/null && - { $doit $rmcmd -f "$rmtmp" 2>/dev/null; :; } - } || - { echo "$0: cannot unlink or rename $dst" >&2 - (exit 1); exit 1 - } - } && - - # Now rename the file to the real destination. - $doit $mvcmd "$dsttmp" "$dst" - } - fi || exit 1 - - trap '' 0 - fi -done - -# Local variables: -# eval: (add-hook 'write-file-hooks 'time-stamp) -# time-stamp-start: "scriptversion=" -# time-stamp-format: "%:y-%02m-%02d.%02H" -# time-stamp-time-zone: "UTC" -# time-stamp-end: "; # UTC" -# End: diff --git a/jpg/install.txt b/jpg/install.txt deleted file mode 100644 index 04bed91..0000000 --- a/jpg/install.txt +++ /dev/null @@ -1,1096 +0,0 @@ -INSTALLATION INSTRUCTIONS for the Independent JPEG Group's JPEG software - -Copyright (C) 1991-2011, Thomas G. Lane, Guido Vollbeding. -This file is part of the Independent JPEG Group's software. -For conditions of distribution and use, see the accompanying README file. - - -This file explains how to configure and install the IJG software. We have -tried to make this software extremely portable and flexible, so that it can be -adapted to almost any environment. The downside of this decision is that the -installation process is complicated. We have provided shortcuts to simplify -the task on common systems. But in any case, you will need at least a little -familiarity with C programming and program build procedures for your system. - -If you are only using this software as part of a larger program, the larger -program's installation procedure may take care of configuring the IJG code. -For example, Ghostscript's installation script will configure the IJG code. -You don't need to read this file if you just want to compile Ghostscript. - -If you are on a Unix machine, you may not need to read this file at all. -Try doing - ./configure - make - make test -If that doesn't complain, do - make install -(better do "make -n install" first to see if the makefile will put the files -where you want them). Read further if you run into snags or want to customize -the code for your system. - - -TABLE OF CONTENTS ------------------ - -Before you start -Configuring the software: - using the automatic "configure" script - using one of the supplied jconfig and makefile files - by hand -Building the software -Testing the software -Installing the software -Optional stuff -Optimization -Hints for specific systems - - -BEFORE YOU START -================ - -Before installing the software you must unpack the distributed source code. -Since you are reading this file, you have probably already succeeded in this -task. However, there is a potential for error if you needed to convert the -files to the local standard text file format (for example, if you are on -MS-DOS you may have converted LF end-of-line to CR/LF). You must apply -such conversion to all the files EXCEPT those whose names begin with "test". -The test files contain binary data; if you change them in any way then the -self-test will give bad results. - -Please check the last section of this file to see if there are hints for the -specific machine or compiler you are using. - - -CONFIGURING THE SOFTWARE -======================== - -To configure the IJG code for your system, you need to create two files: - * jconfig.h: contains values for system-dependent #define symbols. - * Makefile: controls the compilation process. -(On a non-Unix machine, you may create "project files" or some other -substitute for a Makefile. jconfig.h is needed in any environment.) - -We provide three different ways to generate these files: - * On a Unix system, you can just run the "configure" script. - * We provide sample jconfig files and makefiles for popular machines; - if your machine matches one of the samples, just copy the right sample - files to jconfig.h and Makefile. - * If all else fails, read the instructions below and make your own files. - - -Configuring the software using the automatic "configure" script ---------------------------------------------------------------- - -If you are on a Unix machine, you can just type - ./configure -and let the configure script construct appropriate configuration files. -If you're using "csh" on an old version of System V, you might need to type - sh configure -instead to prevent csh from trying to execute configure itself. -Expect configure to run for a few minutes, particularly on slower machines; -it works by compiling a series of test programs. - -Configure was created with GNU Autoconf and it follows the usual conventions -for GNU configure scripts. It makes a few assumptions that you may want to -override. You can do this by providing optional switches to configure: - -* Configure will build both static and shared libraries, if possible. -If you want to build libjpeg only as a static library, say - ./configure --disable-shared -If you want to build libjpeg only as a shared library, say - ./configure --disable-static -Configure uses GNU libtool to take care of system-dependent shared library -building methods. - -* Configure will use gcc (GNU C compiler) if it's available, otherwise cc. -To force a particular compiler to be selected, use the CC option, for example - ./configure CC='cc' -The same method can be used to include any unusual compiler switches. -For example, on HP-UX you probably want to say - ./configure CC='cc -Aa' -to get HP's compiler to run in ANSI mode. - -* The default CFLAGS setting is "-g" for non-gcc compilers, "-g -O2" for gcc. -You can override this by saying, for example, - ./configure CFLAGS='-O2' -if you want to compile without debugging support. - -* Configure will set up the makefile so that "make install" will install files -into /usr/local/bin, /usr/local/man, etc. You can specify an installation -prefix other than "/usr/local" by giving configure the option "--prefix=PATH". - -* If you don't have a lot of swap space, you may need to enable the IJG -software's internal virtual memory mechanism. To do this, give the option -"--enable-maxmem=N" where N is the default maxmemory limit in megabytes. -This is discussed in more detail under "Selecting a memory manager", below. -You probably don't need to worry about this on reasonably-sized Unix machines, -unless you plan to process very large images. - -Configure has some other features that are useful if you are cross-compiling -or working in a network of multiple machine types; but if you need those -features, you probably already know how to use them. - - -Configuring the software using one of the supplied jconfig and makefile files ------------------------------------------------------------------------------ - -If you have one of these systems, you can just use the provided configuration -files: - -Makefile jconfig file System and/or compiler - -makefile.manx jconfig.manx Amiga, Manx Aztec C -makefile.sas jconfig.sas Amiga, SAS C -makeproj.mac jconfig.mac Apple Macintosh, Metrowerks CodeWarrior -mak*jpeg.st jconfig.st Atari ST/STE/TT, Pure C or Turbo C -makefile.bcc jconfig.bcc MS-DOS or OS/2, Borland C -makefile.dj jconfig.dj MS-DOS, DJGPP (Delorie's port of GNU C) -makefile.mc6 jconfig.mc6 MS-DOS, Microsoft C (16-bit only) -makefile.wat jconfig.wat MS-DOS, OS/2, or Windows NT, Watcom C -makefile.vc jconfig.vc Windows NT/95, MS Visual C++ -make*.vc6 jconfig.vc Windows NT/95, MS Visual C++ 6 -make*.v10 jconfig.vc Windows NT/95, MS Visual C++ 2010 (v10) -makefile.mms jconfig.vms Digital VMS, with MMS software -makefile.vms jconfig.vms Digital VMS, without MMS software - -Copy the proper jconfig file to jconfig.h and the makefile to Makefile (or -whatever your system uses as the standard makefile name). For more info see -the appropriate system-specific hints section near the end of this file. - - -Configuring the software by hand --------------------------------- - -First, generate a jconfig.h file. If you are moderately familiar with C, -the comments in jconfig.txt should be enough information to do this; just -copy jconfig.txt to jconfig.h and edit it appropriately. Otherwise, you may -prefer to use the ckconfig.c program. You will need to compile and execute -ckconfig.c by hand --- we hope you know at least enough to do that. -ckconfig.c may not compile the first try (in fact, the whole idea is for it -to fail if anything is going to). If you get compile errors, fix them by -editing ckconfig.c according to the directions given in ckconfig.c. Once -you get it to run, it will write a suitable jconfig.h file, and will also -print out some advice about which makefile to use. - -You may also want to look at the canned jconfig files, if there is one for a -system similar to yours. - -Second, select a makefile and copy it to Makefile (or whatever your system -uses as the standard makefile name). The most generic makefiles we provide -are - makefile.ansi: if your C compiler supports function prototypes - makefile.unix: if not. -(You have function prototypes if ckconfig.c put "#define HAVE_PROTOTYPES" -in jconfig.h.) You may want to start from one of the other makefiles if -there is one for a system similar to yours. - -Look over the selected Makefile and adjust options as needed. In particular -you may want to change the CC and CFLAGS definitions. For instance, if you -are using GCC, set CC=gcc. If you had to use any compiler switches to get -ckconfig.c to work, make sure the same switches are in CFLAGS. - -If you are on a system that doesn't use makefiles, you'll need to set up -project files (or whatever you do use) to compile all the source files and -link them into executable files cjpeg, djpeg, jpegtran, rdjpgcom, and wrjpgcom. -See the file lists in any of the makefiles to find out which files go into -each program. Note that the provided makefiles all make a "library" file -libjpeg first, but you don't have to do that if you don't want to; the file -lists identify which source files are actually needed for compression, -decompression, or both. As a last resort, you can make a batch script that -just compiles everything and links it all together; makefile.vms is an example -of this (it's for VMS systems that have no make-like utility). - -Here are comments about some specific configuration decisions you'll -need to make: - -Command line style ------------------- - -These programs can use a Unix-like command line style which supports -redirection and piping, like this: - cjpeg inputfile >outputfile - cjpeg outputfile - source program | cjpeg >outputfile -The simpler "two file" command line style is just - cjpeg inputfile outputfile -You may prefer the two-file style, particularly if you don't have pipes. - -You MUST use two-file style on any system that doesn't cope well with binary -data fed through stdin/stdout; this is true for some MS-DOS compilers, for -example. If you're not on a Unix system, it's safest to assume you need -two-file style. (But if your compiler provides either the Posix-standard -fdopen() library routine or a Microsoft-compatible setmode() routine, you -can safely use the Unix command line style, by defining USE_FDOPEN or -USE_SETMODE respectively.) - -To use the two-file style, make jconfig.h say "#define TWO_FILE_COMMANDLINE". - -Selecting a memory manager --------------------------- - -The IJG code is capable of working on images that are too big to fit in main -memory; data is swapped out to temporary files as necessary. However, the -code to do this is rather system-dependent. We provide five different -memory managers: - -* jmemansi.c This version uses the ANSI-standard library routine tmpfile(), - which not all non-ANSI systems have. On some systems - tmpfile() may put the temporary file in a non-optimal - location; if you don't like what it does, use jmemname.c. - -* jmemname.c This version creates named temporary files. For anything - except a Unix machine, you'll need to configure the - select_file_name() routine appropriately; see the comments - near the head of jmemname.c. If you use this version, define - NEED_SIGNAL_CATCHER in jconfig.h to make sure the temp files - are removed if the program is aborted. - -* jmemnobs.c (That stands for No Backing Store :-).) This will compile on - almost any system, but it assumes you have enough main memory - or virtual memory to hold the biggest images you work with. - -* jmemdos.c This should be used with most 16-bit MS-DOS compilers. - See the system-specific notes about MS-DOS for more info. - IMPORTANT: if you use this, define USE_MSDOS_MEMMGR in - jconfig.h, and include the assembly file jmemdosa.asm in the - programs. The supplied makefiles and jconfig files for - 16-bit MS-DOS compilers already do both. - -* jmemmac.c Custom version for Apple Macintosh; see the system-specific - notes for Macintosh for more info. - -To use a particular memory manager, change the SYSDEPMEM variable in your -makefile to equal the corresponding object file name (for example, jmemansi.o -or jmemansi.obj for jmemansi.c). - -If you have plenty of (real or virtual) main memory, just use jmemnobs.c. -"Plenty" means about ten bytes for every pixel in the largest images -you plan to process, so a lot of systems don't meet this criterion. -If yours doesn't, try jmemansi.c first. If that doesn't compile, you'll have -to use jmemname.c; be sure to adjust select_file_name() for local conditions. -You may also need to change unlink() to remove() in close_backing_store(). - -Except with jmemnobs.c or jmemmac.c, you need to adjust the DEFAULT_MAX_MEM -setting to a reasonable value for your system (either by adding a #define for -DEFAULT_MAX_MEM to jconfig.h, or by adding a -D switch to the Makefile). -This value limits the amount of data space the program will attempt to -allocate. Code and static data space isn't counted, so the actual memory -needs for cjpeg or djpeg are typically 100 to 150Kb more than the max-memory -setting. Larger max-memory settings reduce the amount of I/O needed to -process a large image, but too large a value can result in "insufficient -memory" failures. On most Unix machines (and other systems with virtual -memory), just set DEFAULT_MAX_MEM to several million and forget it. At the -other end of the spectrum, for MS-DOS machines you probably can't go much -above 300K to 400K. (On MS-DOS the value refers to conventional memory only. -Extended/expanded memory is handled separately by jmemdos.c.) - - -BUILDING THE SOFTWARE -===================== - -Now you should be able to compile the software. Just say "make" (or -whatever's necessary to start the compilation). Have a cup of coffee. - -Here are some things that could go wrong: - -If your compiler complains about undefined structures, you should be able to -shut it up by putting "#define INCOMPLETE_TYPES_BROKEN" in jconfig.h. - -If you have trouble with missing system include files or inclusion of the -wrong ones, read jinclude.h. This shouldn't happen if you used configure -or ckconfig.c to set up jconfig.h. - -There are a fair number of routines that do not use all of their parameters; -some compilers will issue warnings about this, which you can ignore. There -are also a few configuration checks that may give "unreachable code" warnings. -Any other warning deserves investigation. - -If you don't have a getenv() library routine, define NO_GETENV. - -Also see the system-specific hints, below. - - -TESTING THE SOFTWARE -==================== - -As a quick test of functionality we've included a small sample image in -several forms: - testorig.jpg Starting point for the djpeg tests. - testimg.ppm The output of djpeg testorig.jpg - testimg.bmp The output of djpeg -bmp -colors 256 testorig.jpg - testimg.jpg The output of cjpeg testimg.ppm - testprog.jpg Progressive-mode equivalent of testorig.jpg. - testimgp.jpg The output of cjpeg -progressive -optimize testimg.ppm -(The first- and second-generation .jpg files aren't identical since the -default compression parameters are lossy.) If you can generate duplicates -of the testimg* files then you probably have working programs. - -With most of the makefiles, "make test" will perform the necessary -comparisons. - -If you're using a makefile that doesn't provide the test option, run djpeg -and cjpeg by hand and compare the output files to testimg* with whatever -binary file comparison tool you have. The files should be bit-for-bit -identical. - -If the programs complain "MAX_ALLOC_CHUNK is wrong, please fix", then you -need to reduce MAX_ALLOC_CHUNK to a value that fits in type size_t. -Try adding "#define MAX_ALLOC_CHUNK 65520L" to jconfig.h. A less likely -configuration error is "ALIGN_TYPE is wrong, please fix": defining ALIGN_TYPE -as long should take care of that one. - -If the cjpeg test run fails with "Missing Huffman code table entry", it's a -good bet that you needed to define RIGHT_SHIFT_IS_UNSIGNED. Go back to the -configuration step and run ckconfig.c. (This is a good plan for any other -test failure, too.) - -If you are using Unix (one-file) command line style on a non-Unix system, -it's a good idea to check that binary I/O through stdin/stdout actually -works. You should get the same results from "djpeg out.ppm" -as from "djpeg -outfile out.ppm testorig.jpg". Note that the makefiles all -use the latter style and therefore do not exercise stdin/stdout! If this -check fails, try recompiling with USE_SETMODE or USE_FDOPEN defined. -If it still doesn't work, better use two-file style. - -If you chose a memory manager other than jmemnobs.c, you should test that -temporary-file usage works. Try "djpeg -bmp -colors 256 -max 0 testorig.jpg" -and make sure its output matches testimg.bmp. If you have any really large -images handy, try compressing them with -optimize and/or decompressing with --colors 256 to make sure your DEFAULT_MAX_MEM setting is not too large. - -NOTE: this is far from an exhaustive test of the JPEG software; some modules, -such as 1-pass color quantization, are not exercised at all. It's just a -quick test to give you some confidence that you haven't missed something -major. - - -INSTALLING THE SOFTWARE -======================= - -Once you're done with the above steps, you can install the software by -copying the executable files (cjpeg, djpeg, jpegtran, rdjpgcom, and wrjpgcom) -to wherever you normally install programs. On Unix systems, you'll also want -to put the man pages (cjpeg.1, djpeg.1, jpegtran.1, rdjpgcom.1, wrjpgcom.1) -in the man-page directory. The pre-fab makefiles don't support this step -since there's such a wide variety of installation procedures on different -systems. - -If you generated a Makefile with the "configure" script, you can just say - make install -to install the programs and their man pages into the standard places. -(You'll probably need to be root to do this.) We recommend first saying - make -n install -to see where configure thought the files should go. You may need to edit -the Makefile, particularly if your system's conventions for man page -filenames don't match what configure expects. - -If you want to install the IJG library itself, for use in compiling other -programs besides ours, then you need to put the four include files - jpeglib.h jerror.h jconfig.h jmorecfg.h -into your include-file directory, and put the library file libjpeg.a -(extension may vary depending on system) wherever library files go. -If you generated a Makefile with "configure", it will do what it thinks -is the right thing if you say - make install-lib - - -OPTIONAL STUFF -============== - -Progress monitor: - -If you like, you can #define PROGRESS_REPORT (in jconfig.h) to enable display -of percent-done progress reports. The routine provided in cdjpeg.c merely -prints percentages to stderr, but you can customize it to do something -fancier. - -Utah RLE file format support: - -We distribute the software with support for RLE image files (Utah Raster -Toolkit format) disabled, because the RLE support won't compile without the -Utah library. If you have URT version 3.1 or later, you can enable RLE -support as follows: - 1. #define RLE_SUPPORTED in jconfig.h. - 2. Add a -I option to CFLAGS in the Makefile for the directory - containing the URT .h files (typically the "include" - subdirectory of the URT distribution). - 3. Add -L... -lrle to LDLIBS in the Makefile, where ... specifies - the directory containing the URT "librle.a" file (typically the - "lib" subdirectory of the URT distribution). - -Support for 12-bit-deep pixel data: - -The JPEG standard allows either 8-bit or 12-bit data precision. (For color, -this means 8 or 12 bits per channel, of course.) If you need to work with -deeper than 8-bit data, you can compile the IJG code for 12-bit operation. -To do so: - 1. In jmorecfg.h, define BITS_IN_JSAMPLE as 12 rather than 8. - 2. In jconfig.h, undefine BMP_SUPPORTED, RLE_SUPPORTED, and TARGA_SUPPORTED, - because the code for those formats doesn't handle 12-bit data and won't - even compile. (The PPM code does work, as explained below. The GIF - code works too; it scales 8-bit GIF data to and from 12-bit depth - automatically.) - 3. Compile. Don't expect "make test" to pass, since the supplied test - files are for 8-bit data. - -Currently, 12-bit support does not work on 16-bit-int machines. - -Note that a 12-bit version will not read 8-bit JPEG files, nor vice versa; -so you'll want to keep around a regular 8-bit compilation as well. -(Run-time selection of data depth, to allow a single copy that does both, -is possible but would probably slow things down considerably; it's very low -on our to-do list.) - -The PPM reader (rdppm.c) can read 12-bit data from either text-format or -binary-format PPM and PGM files. Binary-format PPM/PGM files which have a -maxval greater than 255 are assumed to use 2 bytes per sample, MSB first -(big-endian order). As of early 1995, 2-byte binary format is not -officially supported by the PBMPLUS library, but it is expected that a -future release of PBMPLUS will support it. Note that the PPM reader will -read files of any maxval regardless of the BITS_IN_JSAMPLE setting; incoming -data is automatically rescaled to either maxval=255 or maxval=4095 as -appropriate for the cjpeg bit depth. - -The PPM writer (wrppm.c) will normally write 2-byte binary PPM or PGM -format, maxval 4095, when compiled with BITS_IN_JSAMPLE=12. Since this -format is not yet widely supported, you can disable it by compiling wrppm.c -with PPM_NORAWWORD defined; then the data is scaled down to 8 bits to make a -standard 1-byte/sample PPM or PGM file. (Yes, this means still another copy -of djpeg to keep around. But hopefully you won't need it for very long. -Poskanzer's supposed to get that new PBMPLUS release out Real Soon Now.) - -Of course, if you are working with 12-bit data, you probably have it stored -in some other, nonstandard format. In that case you'll probably want to -write your own I/O modules to read and write your format. - -Note that a 12-bit version of cjpeg always runs in "-optimize" mode, in -order to generate valid Huffman tables. This is necessary because our -default Huffman tables only cover 8-bit data. - -Removing code: - -If you need to make a smaller version of the JPEG software, some optional -functions can be removed at compile time. See the xxx_SUPPORTED #defines in -jconfig.h and jmorecfg.h. If at all possible, we recommend that you leave in -decoder support for all valid JPEG files, to ensure that you can read anyone's -output. Taking out support for image file formats that you don't use is the -most painless way to make the programs smaller. Another possibility is to -remove some of the DCT methods: in particular, the "IFAST" method may not be -enough faster than the others to be worth keeping on your machine. (If you -do remove ISLOW or IFAST, be sure to redefine JDCT_DEFAULT or JDCT_FASTEST -to a supported method, by adding a #define in jconfig.h.) - - -OPTIMIZATION -============ - -Unless you own a Cray, you'll probably be interested in making the JPEG -software go as fast as possible. This section covers some machine-dependent -optimizations you may want to try. We suggest that before trying any of -this, you first get the basic installation to pass the self-test step. -Repeat the self-test after any optimization to make sure that you haven't -broken anything. - -The integer DCT routines perform a lot of multiplications. These -multiplications must yield 32-bit results, but none of their input values -are more than 16 bits wide. On many machines, notably the 680x0 and 80x86 -CPUs, a 16x16=>32 bit multiply instruction is faster than a full 32x32=>32 -bit multiply. Unfortunately there is no portable way to specify such a -multiplication in C, but some compilers can generate one when you use the -right combination of casts. See the MULTIPLYxxx macro definitions in -jdct.h. If your compiler makes "int" be 32 bits and "short" be 16 bits, -defining SHORTxSHORT_32 is fairly likely to work. When experimenting with -alternate definitions, be sure to test not only whether the code still works -(use the self-test), but also whether it is actually faster --- on some -compilers, alternate definitions may compute the right answer, yet be slower -than the default. Timing cjpeg on a large PGM (grayscale) input file is the -best way to check this, as the DCT will be the largest fraction of the runtime -in that mode. (Note: some of the distributed compiler-specific jconfig files -already contain #define switches to select appropriate MULTIPLYxxx -definitions.) - -If your machine has sufficiently fast floating point hardware, you may find -that the float DCT method is faster than the integer DCT methods, even -after tweaking the integer multiply macros. In that case you may want to -make the float DCT be the default method. (The only objection to this is -that float DCT results may vary slightly across machines.) To do that, add -"#define JDCT_DEFAULT JDCT_FLOAT" to jconfig.h. Even if you don't change -the default, you should redefine JDCT_FASTEST, which is the method selected -by djpeg's -fast switch. Don't forget to update the documentation files -(usage.txt and/or cjpeg.1, djpeg.1) to agree with what you've done. - -If access to "short" arrays is slow on your machine, it may be a win to -define type JCOEF as int rather than short. This will cost a good deal of -memory though, particularly in some multi-pass modes, so don't do it unless -you have memory to burn and short is REALLY slow. - -If your compiler can compile function calls in-line, make sure the INLINE -macro in jmorecfg.h is defined as the keyword that marks a function -inline-able. Some compilers have a switch that tells the compiler to inline -any function it thinks is profitable (e.g., -finline-functions for gcc). -Enabling such a switch is likely to make the compiled code bigger but faster. - -In general, it's worth trying the maximum optimization level of your compiler, -and experimenting with any optional optimizations such as loop unrolling. -(Unfortunately, far too many compilers have optimizer bugs ... be prepared to -back off if the code fails self-test.) If you do any experimentation along -these lines, please report the optimal settings to jpeg-info@jpegclub.org so -we can mention them in future releases. Be sure to specify your machine and -compiler version. - - -HINTS FOR SPECIFIC SYSTEMS -========================== - -We welcome reports on changes needed for systems not mentioned here. Submit -'em to jpeg-info@jpegclub.org. Also, if configure or ckconfig.c is wrong -about how to configure the JPEG software for your system, please let us know. - - -Acorn RISC OS: - -(Thanks to Simon Middleton for these hints on compiling with Desktop C.) -After renaming the files according to Acorn conventions, take a copy of -makefile.ansi, change all occurrences of 'libjpeg.a' to 'libjpeg.o' and -change these definitions as indicated: - -CFLAGS= -throwback -IC: -Wn -LDLIBS=C:o.Stubs -SYSDEPMEM=jmemansi.o -LN=Link -AR=LibFile -c -o - -Also add a new line '.c.o:; $(cc) $< $(cflags) -c -o $@'. Remove the -lines '$(RM) libjpeg.o' and '$(AR2) libjpeg.o' and the 'jconfig.h' -dependency section. - -Copy jconfig.txt to jconfig.h. Edit jconfig.h to define TWO_FILE_COMMANDLINE -and CHAR_IS_UNSIGNED. - -Run the makefile using !AMU not !Make. If you want to use the 'clean' and -'test' makefile entries then you will have to fiddle with the syntax a bit -and rename the test files. - - -Amiga: - -SAS C 6.50 reportedly is too buggy to compile the IJG code properly. -A patch to update to 6.51 is available from SAS or AmiNet FTP sites. - -The supplied config files are set up to use jmemname.c as the memory -manager, with temporary files being created on the device named by -"JPEGTMP:". - - -Atari ST/STE/TT: - -Copy the project files makcjpeg.st, makdjpeg.st, maktjpeg.st, and makljpeg.st -to cjpeg.prj, djpeg.prj, jpegtran.prj, and libjpeg.prj respectively. The -project files should work as-is with Pure C. For Turbo C, change library -filenames "pc..." to "tc..." in each project file. Note that libjpeg.prj -selects jmemansi.c as the recommended memory manager. You'll probably want to -adjust the DEFAULT_MAX_MEM setting --- you want it to be a couple hundred K -less than your normal free memory. Put "#define DEFAULT_MAX_MEM nnnn" into -jconfig.h to do this. - -To use the 68881/68882 coprocessor for the floating point DCT, add the -compiler option "-8" to the project files and replace pcfltlib.lib with -pc881lib.lib in cjpeg.prj and djpeg.prj. Or if you don't have a -coprocessor, you may prefer to remove the float DCT code by undefining -DCT_FLOAT_SUPPORTED in jmorecfg.h (since without a coprocessor, the float -code will be too slow to be useful). In that case, you can delete -pcfltlib.lib from the project files. - -Note that you must make libjpeg.lib before making cjpeg.ttp, djpeg.ttp, -or jpegtran.ttp. You'll have to perform the self-test by hand. - -We haven't bothered to include project files for rdjpgcom and wrjpgcom. -Those source files should just be compiled by themselves; they don't -depend on the JPEG library. You can use the default.prj project file -of the Pure C distribution to make the programs. - -There is a bug in some older versions of the Turbo C library which causes the -space used by temporary files created with "tmpfile()" not to be freed after -an abnormal program exit. If you check your disk afterwards, you will find -cluster chains that are allocated but not used by a file. This should not -happen in cjpeg/djpeg/jpegtran, since we enable a signal catcher to explicitly -close temp files before exiting. But if you use the JPEG library with your -own code, be sure to supply a signal catcher, or else use a different -system-dependent memory manager. - - -Cray: - -Should you be so fortunate as to be running JPEG on a Cray YMP, there is a -compiler bug in old versions of Cray's Standard C (prior to 3.1). If you -still have an old compiler, you'll need to insert a line reading -"#pragma novector" just before the loop - for (i = 1; i <= (int) htbl->bits[l]; i++) - huffsize[p++] = (char) l; -in fix_huff_tbl (in V5beta1, line 204 of jchuff.c and line 176 of jdhuff.c). -[This bug may or may not still occur with the current IJG code, but it's -probably a dead issue anyway...] - - -HP-UX: - -If you have HP-UX 7.05 or later with the "software development" C compiler, -you should run the compiler in ANSI mode. If using the configure script, -say - ./configure CC='cc -Aa' -(or -Ae if you prefer). If configuring by hand, use makefile.ansi and add -"-Aa" to the CFLAGS line in the makefile. - -If you have a pre-7.05 system, or if you are using the non-ANSI C compiler -delivered with a minimum HP-UX system, then you must use makefile.unix -(and do NOT add -Aa); or just run configure without the CC option. - -On HP 9000 series 800 machines, the HP C compiler is buggy in revisions prior -to A.08.07. If you get complaints about "not a typedef name", you'll have to -use makefile.unix, or run configure without the CC option. - - -Macintosh, generic comments: - -The supplied user-interface files (cjpeg.c, djpeg.c, etc) are set up to -provide a Unix-style command line interface. You can use this interface on -the Mac by means of the ccommand() library routine provided by Metrowerks -CodeWarrior or Think C. This is only appropriate for testing the library, -however; to make a user-friendly equivalent of cjpeg/djpeg you'd really want -to develop a Mac-style user interface. There isn't a complete example -available at the moment, but there are some helpful starting points: -1. Sam Bushell's free "To JPEG" applet provides drag-and-drop conversion to -JPEG under System 7 and later. This only illustrates how to use the -compression half of the library, but it does a very nice job of that part. -The CodeWarrior source code is available from http://www.pobox.com/~jsam. -2. Jim Brunner prepared a Mac-style user interface for both compression and -decompression. Unfortunately, it hasn't been updated since IJG v4, and -the library's API has changed considerably since then. Still it may be of -some help, particularly as a guide to compiling the IJG code under Think C. -Jim's code is available from the Info-Mac archives, at sumex-aim.stanford.edu -or mirrors thereof; see file /info-mac/dev/src/jpeg-convert-c.hqx. - -jmemmac.c is the recommended memory manager back end for Macintosh. It uses -NewPtr/DisposePtr instead of malloc/free, and has a Mac-specific -implementation of jpeg_mem_available(). It also creates temporary files that -follow Mac conventions. (That part of the code relies on System-7-or-later OS -functions. See the comments in jmemmac.c if you need to run it on System 6.) -NOTE that USE_MAC_MEMMGR must be defined in jconfig.h to use jmemmac.c. - -You can also use jmemnobs.c, if you don't care about handling images larger -than available memory. If you use any memory manager back end other than -jmemmac.c, we recommend replacing "malloc" and "free" by "NewPtr" and -"DisposePtr", because Mac C libraries often have peculiar implementations of -malloc/free. (For instance, free() may not return the freed space to the -Mac Memory Manager. This is undesirable for the IJG code because jmemmgr.c -already clumps space requests.) - - -Macintosh, Metrowerks CodeWarrior: - -The Unix-command-line-style interface can be used by defining USE_CCOMMAND. -You'll also need to define TWO_FILE_COMMANDLINE to avoid stdin/stdout. -This means that when using the cjpeg/djpeg programs, you'll have to type the -input and output file names in the "Arguments" text-edit box, rather than -using the file radio buttons. (Perhaps USE_FDOPEN or USE_SETMODE would -eliminate the problem, but I haven't heard from anyone who's tried it.) - -On 680x0 Macs, Metrowerks defines type "double" as a 10-byte IEEE extended -float. jmemmgr.c won't like this: it wants sizeof(ALIGN_TYPE) to be a power -of 2. Add "#define ALIGN_TYPE long" to jconfig.h to eliminate the complaint. - -The supplied configuration file jconfig.mac can be used for your jconfig.h; -it includes all the recommended symbol definitions. If you have AppleScript -installed, you can run the supplied script makeproj.mac to create CodeWarrior -project files for the library and the testbed applications, then build the -library and applications. (Thanks to Dan Sears and Don Agro for this nifty -hack, which saves us from trying to maintain CodeWarrior project files as part -of the IJG distribution...) - - -Macintosh, Think C: - -The documentation in Jim Brunner's "JPEG Convert" source code (see above) -includes detailed build instructions for Think C; it's probably somewhat -out of date for the current release, but may be helpful. - -If you want to build the minimal command line version, proceed as follows. -You'll have to prepare project files for the programs; we don't include any -in the distribution since they are not text files. Use the file lists in -any of the supplied makefiles as a guide. Also add the ANSI and Unix C -libraries in a separate segment. You may need to divide the JPEG files into -more than one segment; we recommend dividing compression and decompression -modules. Define USE_CCOMMAND in jconfig.h so that the ccommand() routine is -called. You must also define TWO_FILE_COMMANDLINE because stdin/stdout -don't handle binary data correctly. - -On 680x0 Macs, Think C defines type "double" as a 12-byte IEEE extended float. -jmemmgr.c won't like this: it wants sizeof(ALIGN_TYPE) to be a power of 2. -Add "#define ALIGN_TYPE long" to jconfig.h to eliminate the complaint. - -jconfig.mac should work as a jconfig.h configuration file for Think C, -but the makeproj.mac AppleScript script is specific to CodeWarrior. Sorry. - - -MIPS R3000: - -MIPS's cc version 1.31 has a rather nasty optimization bug. Don't use -O -if you have that compiler version. (Use "cc -V" to check the version.) -Note that the R3000 chip is found in workstations from DEC and others. - - -MS-DOS, generic comments for 16-bit compilers: - -The IJG code is designed to work well in 80x86 "small" or "medium" memory -models (i.e., data pointers are 16 bits unless explicitly declared "far"; -code pointers can be either size). You may be able to use small model to -compile cjpeg or djpeg by itself, but you will probably have to use medium -model for any larger application. This won't make much difference in -performance. You *will* take a noticeable performance hit if you use a -large-data memory model, and you should avoid "huge" model if at all -possible. Be sure that NEED_FAR_POINTERS is defined in jconfig.h if you use -a small-data memory model; be sure it is NOT defined if you use a large-data -model. (The supplied makefiles and jconfig files for Borland and Microsoft C -compile in medium model and define NEED_FAR_POINTERS.) - -The DOS-specific memory manager, jmemdos.c, should be used if possible. -It needs some assembly-code routines which are in jmemdosa.asm; make sure -your makefile assembles that file and includes it in the library. If you -don't have a suitable assembler, you can get pre-assembled object files for -jmemdosa by FTP from ftp.uu.net:/graphics/jpeg/jdosaobj.zip. (DOS-oriented -distributions of the IJG source code often include these object files.) - -When using jmemdos.c, jconfig.h must define USE_MSDOS_MEMMGR and must set -MAX_ALLOC_CHUNK to less than 64K (65520L is a typical value). If your -C library's far-heap malloc() can't allocate blocks that large, reduce -MAX_ALLOC_CHUNK to whatever it can handle. - -If you can't use jmemdos.c for some reason --- for example, because you -don't have an assembler to assemble jmemdosa.asm --- you'll have to fall -back to jmemansi.c or jmemname.c. You'll probably still need to set -MAX_ALLOC_CHUNK in jconfig.h, because most DOS C libraries won't malloc() -more than 64K at a time. IMPORTANT: if you use jmemansi.c or jmemname.c, -you will have to compile in a large-data memory model in order to get the -right stdio library. Too bad. - -wrjpgcom needs to be compiled in large model, because it malloc()s a 64KB -work area to hold the comment text. If your C library's malloc can't -handle that, reduce MAX_COM_LENGTH as necessary in wrjpgcom.c. - -Most MS-DOS compilers treat stdin/stdout as text files, so you must use -two-file command line style. But if your compiler has either fdopen() or -setmode(), you can use one-file style if you like. To do this, define -USE_SETMODE or USE_FDOPEN so that stdin/stdout will be set to binary mode. -(USE_SETMODE seems to work with more DOS compilers than USE_FDOPEN.) You -should test that I/O through stdin/stdout produces the same results as I/O -to explicitly named files... the "make test" procedures in the supplied -makefiles do NOT use stdin/stdout. - - -MS-DOS, generic comments for 32-bit compilers: - -None of the above comments about memory models apply if you are using a -32-bit flat-memory-space environment, such as DJGPP or Watcom C. (And you -should use one if you have it, as performance will be much better than -8086-compatible code!) For flat-memory-space compilers, do NOT define -NEED_FAR_POINTERS, and do NOT use jmemdos.c. Use jmemnobs.c if the -environment supplies adequate virtual memory, otherwise use jmemansi.c or -jmemname.c. - -You'll still need to be careful about binary I/O through stdin/stdout. -See the last paragraph of the previous section. - - -MS-DOS, Borland C: - -Be sure to convert all the source files to DOS text format (CR/LF newlines). -Although Borland C will often work OK with unmodified Unix (LF newlines) -source files, sometimes it will give bogus compile errors. -"Illegal character '#'" is the most common such error. (This is true with -Borland C 3.1, but perhaps is fixed in newer releases.) - -If you want one-file command line style, just undefine TWO_FILE_COMMANDLINE. -jconfig.bcc already includes #define USE_SETMODE to make this work. -(fdopen does not work correctly.) - - -MS-DOS, Microsoft C: - -makefile.mc6 works with Microsoft C, DOS Visual C++, etc. It should only -be used if you want to build a 16-bit (small or medium memory model) program. - -If you want one-file command line style, just undefine TWO_FILE_COMMANDLINE. -jconfig.mc6 already includes #define USE_SETMODE to make this work. -(fdopen does not work correctly.) - -Note that this makefile assumes that the working copy of itself is called -"makefile". If you want to call it something else, say "makefile.mak", -be sure to adjust the dependency line that reads "$(RFILE) : makefile". -Otherwise the make will fail because it doesn't know how to create "makefile". -Worse, some releases of Microsoft's make utilities give an incorrect error -message in this situation. - -Old versions of MS C fail with an "out of macro expansion space" error -because they can't cope with the macro TRACEMS8 (defined in jerror.h). -If this happens to you, the easiest solution is to change TRACEMS8 to -expand to nothing. You'll lose the ability to dump out JPEG coefficient -tables with djpeg -debug -debug, but at least you can compile. - -Original MS C 6.0 is very buggy; it compiles incorrect code unless you turn -off optimization entirely (remove -O from CFLAGS). 6.00A is better, but it -still generates bad code if you enable loop optimizations (-Ol or -Ox). - -MS C 8.0 crashes when compiling jquant1.c with optimization switch /Oo ... -which is on by default. To work around this bug, compile that one file -with /Oo-. - - -Microsoft Windows (all versions), generic comments: - -Some Windows system include files define typedef boolean as "unsigned char". -The IJG code also defines typedef boolean, but we make it "int" by default. -This doesn't affect the IJG programs because we don't import those Windows -include files. But if you use the JPEG library in your own program, and some -of your program's files import one definition of boolean while some import the -other, you can get all sorts of mysterious problems. A good preventive step -is to make the IJG library use "unsigned char" for boolean. To do that, -add something like this to your jconfig.h file: - /* Define "boolean" as unsigned char, not int, per Windows custom */ - #ifndef __RPCNDR_H__ /* don't conflict if rpcndr.h already read */ - typedef unsigned char boolean; - #endif - #define HAVE_BOOLEAN /* prevent jmorecfg.h from redefining it */ -(This is already in jconfig.vc, by the way.) - -windef.h contains the declarations - #define far - #define FAR far -Since jmorecfg.h tries to define FAR as empty, you may get a compiler -warning if you include both jpeglib.h and windef.h (which windows.h -includes). To suppress the warning, you can put "#ifndef FAR"/"#endif" -around the line "#define FAR" in jmorecfg.h. -(Something like this is already in jmorecfg.h, by the way.) - -When using the library in a Windows application, you will almost certainly -want to modify or replace the error handler module jerror.c, since our -default error handler does a couple of inappropriate things: - 1. it tries to write error and warning messages on stderr; - 2. in event of a fatal error, it exits by calling exit(). - -A simple stopgap solution for problem 1 is to replace the line - fprintf(stderr, "%s\n", buffer); -(in output_message in jerror.c) with - MessageBox(GetActiveWindow(),buffer,"JPEG Error",MB_OK|MB_ICONERROR); -It's highly recommended that you at least do that much, since otherwise -error messages will disappear into nowhere. (Beginning with IJG v6b, this -code is already present in jerror.c; just define USE_WINDOWS_MESSAGEBOX in -jconfig.h to enable it.) - -The proper solution for problem 2 is to return control to your calling -application after a library error. This can be done with the setjmp/longjmp -technique discussed in libjpeg.txt and illustrated in example.c. (NOTE: -some older Windows C compilers provide versions of setjmp/longjmp that -don't actually work under Windows. You may need to use the Windows system -functions Catch and Throw instead.) - -The recommended memory manager under Windows is jmemnobs.c; in other words, -let Windows do any virtual memory management needed. You should NOT use -jmemdos.c nor jmemdosa.asm under Windows. - -For Windows 3.1, we recommend compiling in medium or large memory model; -for newer Windows versions, use a 32-bit flat memory model. (See the MS-DOS -sections above for more info about memory models.) In the 16-bit memory -models only, you'll need to put - #define MAX_ALLOC_CHUNK 65520L /* Maximum request to malloc() */ -into jconfig.h to limit allocation chunks to 64Kb. (Without that, you'd -have to use huge memory model, which slows things down unnecessarily.) -jmemnobs.c works without modification in large or flat memory models, but to -use medium model, you need to modify its jpeg_get_large and jpeg_free_large -routines to allocate far memory. In any case, you might like to replace -its calls to malloc and free with direct calls on Windows memory allocation -functions. - -You may also want to modify jdatasrc.c and jdatadst.c to use Windows file -operations rather than fread/fwrite. This is only necessary if your C -compiler doesn't provide a competent implementation of C stdio functions. - -You might want to tweak the RGB_xxx macros in jmorecfg.h so that the library -will accept or deliver color pixels in BGR sample order, not RGB; BGR order -is usually more convenient under Windows. Note that this change will break -the sample applications cjpeg/djpeg, but the library itself works fine. - - -Many people want to convert the IJG library into a DLL. This is reasonably -straightforward, but watch out for the following: - - 1. Don't try to compile as a DLL in small or medium memory model; use -large model, or even better, 32-bit flat model. Many places in the IJG code -assume the address of a local variable is an ordinary (not FAR) pointer; -that isn't true in a medium-model DLL. - - 2. Microsoft C cannot pass file pointers between applications and DLLs. -(See Microsoft Knowledge Base, PSS ID Number Q50336.) So jdatasrc.c and -jdatadst.c don't work if you open a file in your application and then pass -the pointer to the DLL. One workaround is to make jdatasrc.c/jdatadst.c -part of your main application rather than part of the DLL. - - 3. You'll probably need to modify the macros GLOBAL() and EXTERN() to -attach suitable linkage keywords to the exported routine names. Similarly, -you'll want to modify METHODDEF() and JMETHOD() to ensure function pointers -are declared in a way that lets application routines be called back through -the function pointers. These macros are in jmorecfg.h. Typical definitions -for a 16-bit DLL are: - #define GLOBAL(type) type _far _pascal _loadds _export - #define EXTERN(type) extern type _far _pascal _loadds - #define METHODDEF(type) static type _far _pascal - #define JMETHOD(type,methodname,arglist) \ - type (_far _pascal *methodname) arglist -For a 32-bit DLL you may want something like - #define GLOBAL(type) __declspec(dllexport) type - #define EXTERN(type) extern __declspec(dllexport) type -Although not all the GLOBAL routines are actually intended to be called by -the application, the performance cost of making them all DLL entry points is -negligible. - -The unmodified IJG library presents a very C-specific application interface, -so the resulting DLL is only usable from C or C++ applications. There has -been some talk of writing wrapper code that would present a simpler interface -usable from other languages, such as Visual Basic. This is on our to-do list -but hasn't been very high priority --- any volunteers out there? - - -Microsoft Windows, Borland C: - -The provided jconfig.bcc should work OK in a 32-bit Windows environment, -but you'll need to tweak it in a 16-bit environment (you'd need to define -NEED_FAR_POINTERS and MAX_ALLOC_CHUNK). Beware that makefile.bcc will need -alteration if you want to use it for Windows --- in particular, you should -use jmemnobs.c not jmemdos.c under Windows. - -Borland C++ 4.5 fails with an internal compiler error when trying to compile -jdmerge.c in 32-bit mode. If enough people complain, perhaps Borland will fix -it. In the meantime, the simplest known workaround is to add a redundant -definition of the variable range_limit in h2v1_merged_upsample(), at the head -of the block that handles odd image width (about line 268 in v6 jdmerge.c): - /* If image width is odd, do the last output column separately */ - if (cinfo->output_width & 1) { - register JSAMPLE * range_limit = cinfo->sample_range_limit; /* ADD THIS */ - cb = GETJSAMPLE(*inptr1); -Pretty bizarre, especially since the very similar routine h2v2_merged_upsample -doesn't trigger the bug. -Recent reports suggest that this bug does not occur with "bcc32a" (the -Pentium-optimized version of the compiler). - -Another report from a user of Borland C 4.5 was that incorrect code (leading -to a color shift in processed images) was produced if any of the following -optimization switch combinations were used: - -Ot -Og - -Ot -Op - -Ot -Om -So try backing off on optimization if you see such a problem. (Are there -several different releases all numbered "4.5"??) - - -Microsoft Windows, Microsoft Visual C++: - -jconfig.vc should work OK with any Microsoft compiler for a 32-bit memory -model. makefile.vc is intended for command-line use. (If you are using -the Developer Studio environment, you may prefer the DevStudio project -files; see below.) - -IJG JPEG 7 adds extern "C" to jpeglib.h. This avoids the need to put -extern "C" { ... } around #include "jpeglib.h" in your C++ application. -You can also force VC++ to treat the library as C++ code by renaming -all the *.c files to *.cpp (and adjusting the makefile to match). -In this case you also need to define the symbol DONT_USE_EXTERN_C in -the configuration to prevent jpeglib.h from using extern "C". - - -Microsoft Windows, Microsoft Visual C++ 6 Developer Studio: - -We include makefiles that should work as project files in DevStudio 6.0 or -later. There is a library makefile that builds the IJG library as a static -Win32 library, and application makefiles that build the sample applications -as Win32 console applications. (Even if you only want the library, we -recommend building the applications so that you can run the self-test.) - -To use: -1. Open the command prompt, change to the main directory and execute the - command line - NMAKE /f makefile.vc setup-vc6 - This will move jconfig.vc to jconfig.h and makefiles to project files. - (Note that the renaming is critical!) -2. Open the workspace file jpeg.dsw, build the library project. - (If you are using DevStudio more recent than 6.0, you'll probably - get a message saying that the project files are being updated.) -3. Open the workspace file apps.dsw, build the application projects. -4. To perform the self-test, execute the command line - NMAKE /f makefile.vc test-build -5. Move the application .exe files from `app`\Release to an - appropriate location on your path. - - -Microsoft Windows, Microsoft Visual C++ 2010 Developer Studio (v10): - -We include makefiles that should work as project files in Visual Studio -2010 or later. There is a library makefile that builds the IJG library -as a static Win32 library, and application makefiles that build the sample -applications as Win32 console applications. (Even if you only want the -library, we recommend building the applications so that you can run the -self-test.) - -To use: -1. Open the command prompt, change to the main directory and execute the - command line - NMAKE /f makefile.vc setup-v10 - This will move jconfig.vc to jconfig.h and makefiles to project files. - (Note that the renaming is critical!) -2. Open the solution file jpeg.sln, build the library project. - (If you are using Visual Studio more recent than 2010 (v10), you'll - probably get a message saying that the project files are being updated.) -3. Open the solution file apps.sln, build the application projects. -4. To perform the self-test, execute the command line - NMAKE /f makefile.vc test-build -5. Move the application .exe files from `app`\Release to an - appropriate location on your path. - -Note: -There seems to be an optimization bug in the compiler which causes the -self-test to fail with the color quantization option. -We have disabled optimization for the file jquant2.c in the library -project file which causes the self-test to pass properly. - - -OS/2, Borland C++: - -Watch out for optimization bugs in older Borland compilers; you may need -to back off the optimization switch settings. See the comments in -makefile.bcc. - - -SGI: - -On some SGI systems, you may need to set "AR2= ar -ts" in the Makefile. -If you are using configure, you can do this by saying - ./configure RANLIB='ar -ts' -This change is not needed on all SGIs. Use it only if the make fails at the -stage of linking the completed programs. - -On the MIPS R4000 architecture (Indy, etc.), the compiler option "-mips2" -reportedly speeds up the float DCT method substantially, enough to make it -faster than the default int method (but still slower than the fast int -method). If you use -mips2, you may want to alter the default DCT method to -be float. To do this, put "#define JDCT_DEFAULT JDCT_FLOAT" in jconfig.h. - - -VMS: - -On an Alpha/VMS system with MMS, be sure to use the "/Marco=Alpha=1" -qualifier with MMS when building the JPEG package. - -VAX/VMS v5.5-1 may have problems with the test step of the build procedure -reporting differences when it compares the original and test images. If the -error points to the last block of the files, it is most likely bogus and may -be safely ignored. It seems to be because the files are Stream_LF and -Backup/Compare has difficulty with the (presumably) null padded files. -This problem was not observed on VAX/VMS v6.1 or AXP/VMS v6.1. diff --git a/jpg/jaricom.c b/jpg/jaricom.c deleted file mode 100644 index 6900688..0000000 --- a/jpg/jaricom.c +++ /dev/null @@ -1,153 +0,0 @@ -/* - * jaricom.c - * - * Developed 1997-2011 by Guido Vollbeding. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file contains probability estimation tables for common use in - * arithmetic entropy encoding and decoding routines. - * - * This data represents Table D.3 in the JPEG spec (D.2 in the draft), - * ISO/IEC IS 10918-1 and CCITT Recommendation ITU-T T.81, and Table 24 - * in the JBIG spec, ISO/IEC IS 11544 and CCITT Recommendation ITU-T T.82. - */ - -#define JPEG_INTERNALS -#include "jinclude.h" -#include "jpeglib.h" - -/* The following #define specifies the packing of the four components - * into the compact INT32 representation. - * Note that this formula must match the actual arithmetic encoder - * and decoder implementation. The implementation has to be changed - * if this formula is changed. - * The current organization is leaned on Markus Kuhn's JBIG - * implementation (jbig_tab.c). - */ - -#define V(i,a,b,c,d) (((INT32)a << 16) | ((INT32)c << 8) | ((INT32)d << 7) | b) - -const INT32 jpeg_aritab[113+1] = { -/* - * Index, Qe_Value, Next_Index_LPS, Next_Index_MPS, Switch_MPS - */ - V( 0, 0x5a1d, 1, 1, 1 ), - V( 1, 0x2586, 14, 2, 0 ), - V( 2, 0x1114, 16, 3, 0 ), - V( 3, 0x080b, 18, 4, 0 ), - V( 4, 0x03d8, 20, 5, 0 ), - V( 5, 0x01da, 23, 6, 0 ), - V( 6, 0x00e5, 25, 7, 0 ), - V( 7, 0x006f, 28, 8, 0 ), - V( 8, 0x0036, 30, 9, 0 ), - V( 9, 0x001a, 33, 10, 0 ), - V( 10, 0x000d, 35, 11, 0 ), - V( 11, 0x0006, 9, 12, 0 ), - V( 12, 0x0003, 10, 13, 0 ), - V( 13, 0x0001, 12, 13, 0 ), - V( 14, 0x5a7f, 15, 15, 1 ), - V( 15, 0x3f25, 36, 16, 0 ), - V( 16, 0x2cf2, 38, 17, 0 ), - V( 17, 0x207c, 39, 18, 0 ), - V( 18, 0x17b9, 40, 19, 0 ), - V( 19, 0x1182, 42, 20, 0 ), - V( 20, 0x0cef, 43, 21, 0 ), - V( 21, 0x09a1, 45, 22, 0 ), - V( 22, 0x072f, 46, 23, 0 ), - V( 23, 0x055c, 48, 24, 0 ), - V( 24, 0x0406, 49, 25, 0 ), - V( 25, 0x0303, 51, 26, 0 ), - V( 26, 0x0240, 52, 27, 0 ), - V( 27, 0x01b1, 54, 28, 0 ), - V( 28, 0x0144, 56, 29, 0 ), - V( 29, 0x00f5, 57, 30, 0 ), - V( 30, 0x00b7, 59, 31, 0 ), - V( 31, 0x008a, 60, 32, 0 ), - V( 32, 0x0068, 62, 33, 0 ), - V( 33, 0x004e, 63, 34, 0 ), - V( 34, 0x003b, 32, 35, 0 ), - V( 35, 0x002c, 33, 9, 0 ), - V( 36, 0x5ae1, 37, 37, 1 ), - V( 37, 0x484c, 64, 38, 0 ), - V( 38, 0x3a0d, 65, 39, 0 ), - V( 39, 0x2ef1, 67, 40, 0 ), - V( 40, 0x261f, 68, 41, 0 ), - V( 41, 0x1f33, 69, 42, 0 ), - V( 42, 0x19a8, 70, 43, 0 ), - V( 43, 0x1518, 72, 44, 0 ), - V( 44, 0x1177, 73, 45, 0 ), - V( 45, 0x0e74, 74, 46, 0 ), - V( 46, 0x0bfb, 75, 47, 0 ), - V( 47, 0x09f8, 77, 48, 0 ), - V( 48, 0x0861, 78, 49, 0 ), - V( 49, 0x0706, 79, 50, 0 ), - V( 50, 0x05cd, 48, 51, 0 ), - V( 51, 0x04de, 50, 52, 0 ), - V( 52, 0x040f, 50, 53, 0 ), - V( 53, 0x0363, 51, 54, 0 ), - V( 54, 0x02d4, 52, 55, 0 ), - V( 55, 0x025c, 53, 56, 0 ), - V( 56, 0x01f8, 54, 57, 0 ), - V( 57, 0x01a4, 55, 58, 0 ), - V( 58, 0x0160, 56, 59, 0 ), - V( 59, 0x0125, 57, 60, 0 ), - V( 60, 0x00f6, 58, 61, 0 ), - V( 61, 0x00cb, 59, 62, 0 ), - V( 62, 0x00ab, 61, 63, 0 ), - V( 63, 0x008f, 61, 32, 0 ), - V( 64, 0x5b12, 65, 65, 1 ), - V( 65, 0x4d04, 80, 66, 0 ), - V( 66, 0x412c, 81, 67, 0 ), - V( 67, 0x37d8, 82, 68, 0 ), - V( 68, 0x2fe8, 83, 69, 0 ), - V( 69, 0x293c, 84, 70, 0 ), - V( 70, 0x2379, 86, 71, 0 ), - V( 71, 0x1edf, 87, 72, 0 ), - V( 72, 0x1aa9, 87, 73, 0 ), - V( 73, 0x174e, 72, 74, 0 ), - V( 74, 0x1424, 72, 75, 0 ), - V( 75, 0x119c, 74, 76, 0 ), - V( 76, 0x0f6b, 74, 77, 0 ), - V( 77, 0x0d51, 75, 78, 0 ), - V( 78, 0x0bb6, 77, 79, 0 ), - V( 79, 0x0a40, 77, 48, 0 ), - V( 80, 0x5832, 80, 81, 1 ), - V( 81, 0x4d1c, 88, 82, 0 ), - V( 82, 0x438e, 89, 83, 0 ), - V( 83, 0x3bdd, 90, 84, 0 ), - V( 84, 0x34ee, 91, 85, 0 ), - V( 85, 0x2eae, 92, 86, 0 ), - V( 86, 0x299a, 93, 87, 0 ), - V( 87, 0x2516, 86, 71, 0 ), - V( 88, 0x5570, 88, 89, 1 ), - V( 89, 0x4ca9, 95, 90, 0 ), - V( 90, 0x44d9, 96, 91, 0 ), - V( 91, 0x3e22, 97, 92, 0 ), - V( 92, 0x3824, 99, 93, 0 ), - V( 93, 0x32b4, 99, 94, 0 ), - V( 94, 0x2e17, 93, 86, 0 ), - V( 95, 0x56a8, 95, 96, 1 ), - V( 96, 0x4f46, 101, 97, 0 ), - V( 97, 0x47e5, 102, 98, 0 ), - V( 98, 0x41cf, 103, 99, 0 ), - V( 99, 0x3c3d, 104, 100, 0 ), - V( 100, 0x375e, 99, 93, 0 ), - V( 101, 0x5231, 105, 102, 0 ), - V( 102, 0x4c0f, 106, 103, 0 ), - V( 103, 0x4639, 107, 104, 0 ), - V( 104, 0x415e, 103, 99, 0 ), - V( 105, 0x5627, 105, 106, 1 ), - V( 106, 0x50e7, 108, 107, 0 ), - V( 107, 0x4b85, 109, 103, 0 ), - V( 108, 0x5597, 110, 109, 0 ), - V( 109, 0x504f, 111, 107, 0 ), - V( 110, 0x5a10, 110, 111, 1 ), - V( 111, 0x5522, 112, 109, 0 ), - V( 112, 0x59eb, 112, 111, 1 ), -/* - * This last entry is used for fixed probability estimate of 0.5 - * as suggested in Section 10.3 Table 5 of ITU-T Rec. T.851. - */ - V( 113, 0x5a1d, 113, 113, 0 ) -}; diff --git a/jpg/jcapimin.c b/jpg/jcapimin.c deleted file mode 100644 index 639ce86..0000000 --- a/jpg/jcapimin.c +++ /dev/null @@ -1,288 +0,0 @@ -/* - * jcapimin.c - * - * Copyright (C) 1994-1998, Thomas G. Lane. - * Modified 2003-2010 by Guido Vollbeding. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file contains application interface code for the compression half - * of the JPEG library. These are the "minimum" API routines that may be - * needed in either the normal full-compression case or the transcoding-only - * case. - * - * Most of the routines intended to be called directly by an application - * are in this file or in jcapistd.c. But also see jcparam.c for - * parameter-setup helper routines, jcomapi.c for routines shared by - * compression and decompression, and jctrans.c for the transcoding case. - */ - -#define JPEG_INTERNALS -#include "jinclude.h" -#include "jpeglib.h" - - -/* - * Initialization of a JPEG compression object. - * The error manager must already be set up (in case memory manager fails). - */ - -GLOBAL(void) -jpeg_CreateCompress (j_compress_ptr cinfo, int version, size_t structsize) -{ - int i; - - /* Guard against version mismatches between library and caller. */ - cinfo->mem = NULL; /* so jpeg_destroy knows mem mgr not called */ - if (version != JPEG_LIB_VERSION) - ERREXIT2(cinfo, JERR_BAD_LIB_VERSION, JPEG_LIB_VERSION, version); - if (structsize != SIZEOF(struct jpeg_compress_struct)) - ERREXIT2(cinfo, JERR_BAD_STRUCT_SIZE, - (int) SIZEOF(struct jpeg_compress_struct), (int) structsize); - - /* For debugging purposes, we zero the whole master structure. - * But the application has already set the err pointer, and may have set - * client_data, so we have to save and restore those fields. - * Note: if application hasn't set client_data, tools like Purify may - * complain here. - */ - { - struct jpeg_error_mgr * err = cinfo->err; - void * client_data = cinfo->client_data; /* ignore Purify complaint here */ - MEMZERO(cinfo, SIZEOF(struct jpeg_compress_struct)); - cinfo->err = err; - cinfo->client_data = client_data; - } - cinfo->is_decompressor = FALSE; - - /* Initialize a memory manager instance for this object */ - jinit_memory_mgr((j_common_ptr) cinfo); - - /* Zero out pointers to permanent structures. */ - cinfo->progress = NULL; - cinfo->dest = NULL; - - cinfo->comp_info = NULL; - - for (i = 0; i < NUM_QUANT_TBLS; i++) { - cinfo->quant_tbl_ptrs[i] = NULL; - cinfo->q_scale_factor[i] = 100; - } - - for (i = 0; i < NUM_HUFF_TBLS; i++) { - cinfo->dc_huff_tbl_ptrs[i] = NULL; - cinfo->ac_huff_tbl_ptrs[i] = NULL; - } - - /* Must do it here for emit_dqt in case jpeg_write_tables is used */ - cinfo->block_size = DCTSIZE; - cinfo->natural_order = jpeg_natural_order; - cinfo->lim_Se = DCTSIZE2-1; - - cinfo->script_space = NULL; - - cinfo->input_gamma = 1.0; /* in case application forgets */ - - /* OK, I'm ready */ - cinfo->global_state = CSTATE_START; -} - - -/* - * Destruction of a JPEG compression object - */ - -GLOBAL(void) -jpeg_destroy_compress (j_compress_ptr cinfo) -{ - jpeg_destroy((j_common_ptr) cinfo); /* use common routine */ -} - - -/* - * Abort processing of a JPEG compression operation, - * but don't destroy the object itself. - */ - -GLOBAL(void) -jpeg_abort_compress (j_compress_ptr cinfo) -{ - jpeg_abort((j_common_ptr) cinfo); /* use common routine */ -} - - -/* - * Forcibly suppress or un-suppress all quantization and Huffman tables. - * Marks all currently defined tables as already written (if suppress) - * or not written (if !suppress). This will control whether they get emitted - * by a subsequent jpeg_start_compress call. - * - * This routine is exported for use by applications that want to produce - * abbreviated JPEG datastreams. It logically belongs in jcparam.c, but - * since it is called by jpeg_start_compress, we put it here --- otherwise - * jcparam.o would be linked whether the application used it or not. - */ - -GLOBAL(void) -jpeg_suppress_tables (j_compress_ptr cinfo, boolean suppress) -{ - int i; - JQUANT_TBL * qtbl; - JHUFF_TBL * htbl; - - for (i = 0; i < NUM_QUANT_TBLS; i++) { - if ((qtbl = cinfo->quant_tbl_ptrs[i]) != NULL) - qtbl->sent_table = suppress; - } - - for (i = 0; i < NUM_HUFF_TBLS; i++) { - if ((htbl = cinfo->dc_huff_tbl_ptrs[i]) != NULL) - htbl->sent_table = suppress; - if ((htbl = cinfo->ac_huff_tbl_ptrs[i]) != NULL) - htbl->sent_table = suppress; - } -} - - -/* - * Finish JPEG compression. - * - * If a multipass operating mode was selected, this may do a great deal of - * work including most of the actual output. - */ - -GLOBAL(void) -jpeg_finish_compress (j_compress_ptr cinfo) -{ - JDIMENSION iMCU_row; - - if (cinfo->global_state == CSTATE_SCANNING || - cinfo->global_state == CSTATE_RAW_OK) { - /* Terminate first pass */ - if (cinfo->next_scanline < cinfo->image_height) - ERREXIT(cinfo, JERR_TOO_LITTLE_DATA); - (*cinfo->master->finish_pass) (cinfo); - } else if (cinfo->global_state != CSTATE_WRCOEFS) - ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state); - /* Perform any remaining passes */ - while (! cinfo->master->is_last_pass) { - (*cinfo->master->prepare_for_pass) (cinfo); - for (iMCU_row = 0; iMCU_row < cinfo->total_iMCU_rows; iMCU_row++) { - if (cinfo->progress != NULL) { - cinfo->progress->pass_counter = (long) iMCU_row; - cinfo->progress->pass_limit = (long) cinfo->total_iMCU_rows; - (*cinfo->progress->progress_monitor) ((j_common_ptr) cinfo); - } - /* We bypass the main controller and invoke coef controller directly; - * all work is being done from the coefficient buffer. - */ - if (! (*cinfo->coef->compress_data) (cinfo, (JSAMPIMAGE) NULL)) - ERREXIT(cinfo, JERR_CANT_SUSPEND); - } - (*cinfo->master->finish_pass) (cinfo); - } - /* Write EOI, do final cleanup */ - (*cinfo->marker->write_file_trailer) (cinfo); - (*cinfo->dest->term_destination) (cinfo); - /* We can use jpeg_abort to release memory and reset global_state */ - jpeg_abort((j_common_ptr) cinfo); -} - - -/* - * Write a special marker. - * This is only recommended for writing COM or APPn markers. - * Must be called after jpeg_start_compress() and before - * first call to jpeg_write_scanlines() or jpeg_write_raw_data(). - */ - -GLOBAL(void) -jpeg_write_marker (j_compress_ptr cinfo, int marker, - const JOCTET *dataptr, unsigned int datalen) -{ - JMETHOD(void, write_marker_byte, (j_compress_ptr info, int val)); - - if (cinfo->next_scanline != 0 || - (cinfo->global_state != CSTATE_SCANNING && - cinfo->global_state != CSTATE_RAW_OK && - cinfo->global_state != CSTATE_WRCOEFS)) - ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state); - - (*cinfo->marker->write_marker_header) (cinfo, marker, datalen); - write_marker_byte = cinfo->marker->write_marker_byte; /* copy for speed */ - while (datalen--) { - (*write_marker_byte) (cinfo, *dataptr); - dataptr++; - } -} - -/* Same, but piecemeal. */ - -GLOBAL(void) -jpeg_write_m_header (j_compress_ptr cinfo, int marker, unsigned int datalen) -{ - if (cinfo->next_scanline != 0 || - (cinfo->global_state != CSTATE_SCANNING && - cinfo->global_state != CSTATE_RAW_OK && - cinfo->global_state != CSTATE_WRCOEFS)) - ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state); - - (*cinfo->marker->write_marker_header) (cinfo, marker, datalen); -} - -GLOBAL(void) -jpeg_write_m_byte (j_compress_ptr cinfo, int val) -{ - (*cinfo->marker->write_marker_byte) (cinfo, val); -} - - -/* - * Alternate compression function: just write an abbreviated table file. - * Before calling this, all parameters and a data destination must be set up. - * - * To produce a pair of files containing abbreviated tables and abbreviated - * image data, one would proceed as follows: - * - * initialize JPEG object - * set JPEG parameters - * set destination to table file - * jpeg_write_tables(cinfo); - * set destination to image file - * jpeg_start_compress(cinfo, FALSE); - * write data... - * jpeg_finish_compress(cinfo); - * - * jpeg_write_tables has the side effect of marking all tables written - * (same as jpeg_suppress_tables(..., TRUE)). Thus a subsequent start_compress - * will not re-emit the tables unless it is passed write_all_tables=TRUE. - */ - -GLOBAL(void) -jpeg_write_tables (j_compress_ptr cinfo) -{ - if (cinfo->global_state != CSTATE_START) - ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state); - - /* (Re)initialize error mgr and destination modules */ - (*cinfo->err->reset_error_mgr) ((j_common_ptr) cinfo); - (*cinfo->dest->init_destination) (cinfo); - /* Initialize the marker writer ... bit of a crock to do it here. */ - jinit_marker_writer(cinfo); - /* Write them tables! */ - (*cinfo->marker->write_tables_only) (cinfo); - /* And clean up. */ - (*cinfo->dest->term_destination) (cinfo); - /* - * In library releases up through v6a, we called jpeg_abort() here to free - * any working memory allocated by the destination manager and marker - * writer. Some applications had a problem with that: they allocated space - * of their own from the library memory manager, and didn't want it to go - * away during write_tables. So now we do nothing. This will cause a - * memory leak if an app calls write_tables repeatedly without doing a full - * compression cycle or otherwise resetting the JPEG object. However, that - * seems less bad than unexpectedly freeing memory in the normal case. - * An app that prefers the old behavior can call jpeg_abort for itself after - * each call to jpeg_write_tables(). - */ -} diff --git a/jpg/jcapistd.c b/jpg/jcapistd.c deleted file mode 100644 index c0320b1..0000000 --- a/jpg/jcapistd.c +++ /dev/null @@ -1,161 +0,0 @@ -/* - * jcapistd.c - * - * Copyright (C) 1994-1996, Thomas G. Lane. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file contains application interface code for the compression half - * of the JPEG library. These are the "standard" API routines that are - * used in the normal full-compression case. They are not used by a - * transcoding-only application. Note that if an application links in - * jpeg_start_compress, it will end up linking in the entire compressor. - * We thus must separate this file from jcapimin.c to avoid linking the - * whole compression library into a transcoder. - */ - -#define JPEG_INTERNALS -#include "jinclude.h" -#include "jpeglib.h" - - -/* - * Compression initialization. - * Before calling this, all parameters and a data destination must be set up. - * - * We require a write_all_tables parameter as a failsafe check when writing - * multiple datastreams from the same compression object. Since prior runs - * will have left all the tables marked sent_table=TRUE, a subsequent run - * would emit an abbreviated stream (no tables) by default. This may be what - * is wanted, but for safety's sake it should not be the default behavior: - * programmers should have to make a deliberate choice to emit abbreviated - * images. Therefore the documentation and examples should encourage people - * to pass write_all_tables=TRUE; then it will take active thought to do the - * wrong thing. - */ - -GLOBAL(void) -jpeg_start_compress (j_compress_ptr cinfo, boolean write_all_tables) -{ - if (cinfo->global_state != CSTATE_START) - ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state); - - if (write_all_tables) - jpeg_suppress_tables(cinfo, FALSE); /* mark all tables to be written */ - - /* (Re)initialize error mgr and destination modules */ - (*cinfo->err->reset_error_mgr) ((j_common_ptr) cinfo); - (*cinfo->dest->init_destination) (cinfo); - /* Perform master selection of active modules */ - jinit_compress_master(cinfo); - /* Set up for the first pass */ - (*cinfo->master->prepare_for_pass) (cinfo); - /* Ready for application to drive first pass through jpeg_write_scanlines - * or jpeg_write_raw_data. - */ - cinfo->next_scanline = 0; - cinfo->global_state = (cinfo->raw_data_in ? CSTATE_RAW_OK : CSTATE_SCANNING); -} - - -/* - * Write some scanlines of data to the JPEG compressor. - * - * The return value will be the number of lines actually written. - * This should be less than the supplied num_lines only in case that - * the data destination module has requested suspension of the compressor, - * or if more than image_height scanlines are passed in. - * - * Note: we warn about excess calls to jpeg_write_scanlines() since - * this likely signals an application programmer error. However, - * excess scanlines passed in the last valid call are *silently* ignored, - * so that the application need not adjust num_lines for end-of-image - * when using a multiple-scanline buffer. - */ - -GLOBAL(JDIMENSION) -jpeg_write_scanlines (j_compress_ptr cinfo, JSAMPARRAY scanlines, - JDIMENSION num_lines) -{ - JDIMENSION row_ctr, rows_left; - - if (cinfo->global_state != CSTATE_SCANNING) - ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state); - if (cinfo->next_scanline >= cinfo->image_height) - WARNMS(cinfo, JWRN_TOO_MUCH_DATA); - - /* Call progress monitor hook if present */ - if (cinfo->progress != NULL) { - cinfo->progress->pass_counter = (long) cinfo->next_scanline; - cinfo->progress->pass_limit = (long) cinfo->image_height; - (*cinfo->progress->progress_monitor) ((j_common_ptr) cinfo); - } - - /* Give master control module another chance if this is first call to - * jpeg_write_scanlines. This lets output of the frame/scan headers be - * delayed so that application can write COM, etc, markers between - * jpeg_start_compress and jpeg_write_scanlines. - */ - if (cinfo->master->call_pass_startup) - (*cinfo->master->pass_startup) (cinfo); - - /* Ignore any extra scanlines at bottom of image. */ - rows_left = cinfo->image_height - cinfo->next_scanline; - if (num_lines > rows_left) - num_lines = rows_left; - - row_ctr = 0; - (*cinfo->main->process_data) (cinfo, scanlines, &row_ctr, num_lines); - cinfo->next_scanline += row_ctr; - return row_ctr; -} - - -/* - * Alternate entry point to write raw data. - * Processes exactly one iMCU row per call, unless suspended. - */ - -GLOBAL(JDIMENSION) -jpeg_write_raw_data (j_compress_ptr cinfo, JSAMPIMAGE data, - JDIMENSION num_lines) -{ - JDIMENSION lines_per_iMCU_row; - - if (cinfo->global_state != CSTATE_RAW_OK) - ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state); - if (cinfo->next_scanline >= cinfo->image_height) { - WARNMS(cinfo, JWRN_TOO_MUCH_DATA); - return 0; - } - - /* Call progress monitor hook if present */ - if (cinfo->progress != NULL) { - cinfo->progress->pass_counter = (long) cinfo->next_scanline; - cinfo->progress->pass_limit = (long) cinfo->image_height; - (*cinfo->progress->progress_monitor) ((j_common_ptr) cinfo); - } - - /* Give master control module another chance if this is first call to - * jpeg_write_raw_data. This lets output of the frame/scan headers be - * delayed so that application can write COM, etc, markers between - * jpeg_start_compress and jpeg_write_raw_data. - */ - if (cinfo->master->call_pass_startup) - (*cinfo->master->pass_startup) (cinfo); - - /* Verify that at least one iMCU row has been passed. */ - lines_per_iMCU_row = cinfo->max_v_samp_factor * DCTSIZE; - if (num_lines < lines_per_iMCU_row) - ERREXIT(cinfo, JERR_BUFFER_SIZE); - - /* Directly compress the row. */ - if (! (*cinfo->coef->compress_data) (cinfo, data)) { - /* If compressor did not consume the whole row, suspend processing. */ - return 0; - } - - /* OK, we processed one iMCU row. */ - cinfo->next_scanline += lines_per_iMCU_row; - return lines_per_iMCU_row; -} diff --git a/jpg/jcarith.c b/jpg/jcarith.c deleted file mode 100644 index 033f670..0000000 --- a/jpg/jcarith.c +++ /dev/null @@ -1,937 +0,0 @@ -/* - * jcarith.c - * - * Developed 1997-2011 by Guido Vollbeding. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file contains portable arithmetic entropy encoding routines for JPEG - * (implementing the ISO/IEC IS 10918-1 and CCITT Recommendation ITU-T T.81). - * - * Both sequential and progressive modes are supported in this single module. - * - * Suspension is not currently supported in this module. - */ - -#define JPEG_INTERNALS -#include "jinclude.h" -#include "jpeglib.h" - - -/* Expanded entropy encoder object for arithmetic encoding. */ - -typedef struct { - struct jpeg_entropy_encoder pub; /* public fields */ - - INT32 c; /* C register, base of coding interval, layout as in sec. D.1.3 */ - INT32 a; /* A register, normalized size of coding interval */ - INT32 sc; /* counter for stacked 0xFF values which might overflow */ - INT32 zc; /* counter for pending 0x00 output values which might * - * be discarded at the end ("Pacman" termination) */ - int ct; /* bit shift counter, determines when next byte will be written */ - int buffer; /* buffer for most recent output byte != 0xFF */ - - int last_dc_val[MAX_COMPS_IN_SCAN]; /* last DC coef for each component */ - int dc_context[MAX_COMPS_IN_SCAN]; /* context index for DC conditioning */ - - unsigned int restarts_to_go; /* MCUs left in this restart interval */ - int next_restart_num; /* next restart number to write (0-7) */ - - /* Pointers to statistics areas (these workspaces have image lifespan) */ - unsigned char * dc_stats[NUM_ARITH_TBLS]; - unsigned char * ac_stats[NUM_ARITH_TBLS]; - - /* Statistics bin for coding with fixed probability 0.5 */ - unsigned char fixed_bin[4]; -} arith_entropy_encoder; - -typedef arith_entropy_encoder * arith_entropy_ptr; - -/* The following two definitions specify the allocation chunk size - * for the statistics area. - * According to sections F.1.4.4.1.3 and F.1.4.4.2, we need at least - * 49 statistics bins for DC, and 245 statistics bins for AC coding. - * - * We use a compact representation with 1 byte per statistics bin, - * thus the numbers directly represent byte sizes. - * This 1 byte per statistics bin contains the meaning of the MPS - * (more probable symbol) in the highest bit (mask 0x80), and the - * index into the probability estimation state machine table - * in the lower bits (mask 0x7F). - */ - -#define DC_STAT_BINS 64 -#define AC_STAT_BINS 256 - -/* NOTE: Uncomment the following #define if you want to use the - * given formula for calculating the AC conditioning parameter Kx - * for spectral selection progressive coding in section G.1.3.2 - * of the spec (Kx = Kmin + SRL (8 + Se - Kmin) 4). - * Although the spec and P&M authors claim that this "has proven - * to give good results for 8 bit precision samples", I'm not - * convinced yet that this is really beneficial. - * Early tests gave only very marginal compression enhancements - * (a few - around 5 or so - bytes even for very large files), - * which would turn out rather negative if we'd suppress the - * DAC (Define Arithmetic Conditioning) marker segments for - * the default parameters in the future. - * Note that currently the marker writing module emits 12-byte - * DAC segments for a full-component scan in a color image. - * This is not worth worrying about IMHO. However, since the - * spec defines the default values to be used if the tables - * are omitted (unlike Huffman tables, which are required - * anyway), one might optimize this behaviour in the future, - * and then it would be disadvantageous to use custom tables if - * they don't provide sufficient gain to exceed the DAC size. - * - * On the other hand, I'd consider it as a reasonable result - * that the conditioning has no significant influence on the - * compression performance. This means that the basic - * statistical model is already rather stable. - * - * Thus, at the moment, we use the default conditioning values - * anyway, and do not use the custom formula. - * -#define CALCULATE_SPECTRAL_CONDITIONING - */ - -/* IRIGHT_SHIFT is like RIGHT_SHIFT, but works on int rather than INT32. - * We assume that int right shift is unsigned if INT32 right shift is, - * which should be safe. - */ - -#ifdef RIGHT_SHIFT_IS_UNSIGNED -#define ISHIFT_TEMPS int ishift_temp; -#define IRIGHT_SHIFT(x,shft) \ - ((ishift_temp = (x)) < 0 ? \ - (ishift_temp >> (shft)) | ((~0) << (16-(shft))) : \ - (ishift_temp >> (shft))) -#else -#define ISHIFT_TEMPS -#define IRIGHT_SHIFT(x,shft) ((x) >> (shft)) -#endif - - -LOCAL(void) -emit_byte (int val, j_compress_ptr cinfo) -/* Write next output byte; we do not support suspension in this module. */ -{ - struct jpeg_destination_mgr * dest = cinfo->dest; - - *dest->next_output_byte++ = (JOCTET) val; - if (--dest->free_in_buffer == 0) - if (! (*dest->empty_output_buffer) (cinfo)) - ERREXIT(cinfo, JERR_CANT_SUSPEND); -} - - -/* - * Finish up at the end of an arithmetic-compressed scan. - */ - -METHODDEF(void) -finish_pass (j_compress_ptr cinfo) -{ - arith_entropy_ptr e = (arith_entropy_ptr) cinfo->entropy; - INT32 temp; - - /* Section D.1.8: Termination of encoding */ - - /* Find the e->c in the coding interval with the largest - * number of trailing zero bits */ - if ((temp = (e->a - 1 + e->c) & 0xFFFF0000L) < e->c) - e->c = temp + 0x8000L; - else - e->c = temp; - /* Send remaining bytes to output */ - e->c <<= e->ct; - if (e->c & 0xF8000000L) { - /* One final overflow has to be handled */ - if (e->buffer >= 0) { - if (e->zc) - do emit_byte(0x00, cinfo); - while (--e->zc); - emit_byte(e->buffer + 1, cinfo); - if (e->buffer + 1 == 0xFF) - emit_byte(0x00, cinfo); - } - e->zc += e->sc; /* carry-over converts stacked 0xFF bytes to 0x00 */ - e->sc = 0; - } else { - if (e->buffer == 0) - ++e->zc; - else if (e->buffer >= 0) { - if (e->zc) - do emit_byte(0x00, cinfo); - while (--e->zc); - emit_byte(e->buffer, cinfo); - } - if (e->sc) { - if (e->zc) - do emit_byte(0x00, cinfo); - while (--e->zc); - do { - emit_byte(0xFF, cinfo); - emit_byte(0x00, cinfo); - } while (--e->sc); - } - } - /* Output final bytes only if they are not 0x00 */ - if (e->c & 0x7FFF800L) { - if (e->zc) /* output final pending zero bytes */ - do emit_byte(0x00, cinfo); - while (--e->zc); - emit_byte((e->c >> 19) & 0xFF, cinfo); - if (((e->c >> 19) & 0xFF) == 0xFF) - emit_byte(0x00, cinfo); - if (e->c & 0x7F800L) { - emit_byte((e->c >> 11) & 0xFF, cinfo); - if (((e->c >> 11) & 0xFF) == 0xFF) - emit_byte(0x00, cinfo); - } - } -} - - -/* - * The core arithmetic encoding routine (common in JPEG and JBIG). - * This needs to go as fast as possible. - * Machine-dependent optimization facilities - * are not utilized in this portable implementation. - * However, this code should be fairly efficient and - * may be a good base for further optimizations anyway. - * - * Parameter 'val' to be encoded may be 0 or 1 (binary decision). - * - * Note: I've added full "Pacman" termination support to the - * byte output routines, which is equivalent to the optional - * Discard_final_zeros procedure (Figure D.15) in the spec. - * Thus, we always produce the shortest possible output - * stream compliant to the spec (no trailing zero bytes, - * except for FF stuffing). - * - * I've also introduced a new scheme for accessing - * the probability estimation state machine table, - * derived from Markus Kuhn's JBIG implementation. - */ - -LOCAL(void) -arith_encode (j_compress_ptr cinfo, unsigned char *st, int val) -{ - register arith_entropy_ptr e = (arith_entropy_ptr) cinfo->entropy; - register unsigned char nl, nm; - register INT32 qe, temp; - register int sv; - - /* Fetch values from our compact representation of Table D.3(D.2): - * Qe values and probability estimation state machine - */ - sv = *st; - qe = jpeg_aritab[sv & 0x7F]; /* => Qe_Value */ - nl = qe & 0xFF; qe >>= 8; /* Next_Index_LPS + Switch_MPS */ - nm = qe & 0xFF; qe >>= 8; /* Next_Index_MPS */ - - /* Encode & estimation procedures per sections D.1.4 & D.1.5 */ - e->a -= qe; - if (val != (sv >> 7)) { - /* Encode the less probable symbol */ - if (e->a >= qe) { - /* If the interval size (qe) for the less probable symbol (LPS) - * is larger than the interval size for the MPS, then exchange - * the two symbols for coding efficiency, otherwise code the LPS - * as usual: */ - e->c += e->a; - e->a = qe; - } - *st = (sv & 0x80) ^ nl; /* Estimate_after_LPS */ - } else { - /* Encode the more probable symbol */ - if (e->a >= 0x8000L) - return; /* A >= 0x8000 -> ready, no renormalization required */ - if (e->a < qe) { - /* If the interval size (qe) for the less probable symbol (LPS) - * is larger than the interval size for the MPS, then exchange - * the two symbols for coding efficiency: */ - e->c += e->a; - e->a = qe; - } - *st = (sv & 0x80) ^ nm; /* Estimate_after_MPS */ - } - - /* Renormalization & data output per section D.1.6 */ - do { - e->a <<= 1; - e->c <<= 1; - if (--e->ct == 0) { - /* Another byte is ready for output */ - temp = e->c >> 19; - if (temp > 0xFF) { - /* Handle overflow over all stacked 0xFF bytes */ - if (e->buffer >= 0) { - if (e->zc) - do emit_byte(0x00, cinfo); - while (--e->zc); - emit_byte(e->buffer + 1, cinfo); - if (e->buffer + 1 == 0xFF) - emit_byte(0x00, cinfo); - } - e->zc += e->sc; /* carry-over converts stacked 0xFF bytes to 0x00 */ - e->sc = 0; - /* Note: The 3 spacer bits in the C register guarantee - * that the new buffer byte can't be 0xFF here - * (see page 160 in the P&M JPEG book). */ - e->buffer = temp & 0xFF; /* new output byte, might overflow later */ - } else if (temp == 0xFF) { - ++e->sc; /* stack 0xFF byte (which might overflow later) */ - } else { - /* Output all stacked 0xFF bytes, they will not overflow any more */ - if (e->buffer == 0) - ++e->zc; - else if (e->buffer >= 0) { - if (e->zc) - do emit_byte(0x00, cinfo); - while (--e->zc); - emit_byte(e->buffer, cinfo); - } - if (e->sc) { - if (e->zc) - do emit_byte(0x00, cinfo); - while (--e->zc); - do { - emit_byte(0xFF, cinfo); - emit_byte(0x00, cinfo); - } while (--e->sc); - } - e->buffer = temp & 0xFF; /* new output byte (can still overflow) */ - } - e->c &= 0x7FFFFL; - e->ct += 8; - } - } while (e->a < 0x8000L); -} - - -/* - * Emit a restart marker & resynchronize predictions. - */ - -LOCAL(void) -emit_restart (j_compress_ptr cinfo, int restart_num) -{ - arith_entropy_ptr entropy = (arith_entropy_ptr) cinfo->entropy; - int ci; - jpeg_component_info * compptr; - - finish_pass(cinfo); - - emit_byte(0xFF, cinfo); - emit_byte(JPEG_RST0 + restart_num, cinfo); - - /* Re-initialize statistics areas */ - for (ci = 0; ci < cinfo->comps_in_scan; ci++) { - compptr = cinfo->cur_comp_info[ci]; - /* DC needs no table for refinement scan */ - if (cinfo->Ss == 0 && cinfo->Ah == 0) { - MEMZERO(entropy->dc_stats[compptr->dc_tbl_no], DC_STAT_BINS); - /* Reset DC predictions to 0 */ - entropy->last_dc_val[ci] = 0; - entropy->dc_context[ci] = 0; - } - /* AC needs no table when not present */ - if (cinfo->Se) { - MEMZERO(entropy->ac_stats[compptr->ac_tbl_no], AC_STAT_BINS); - } - } - - /* Reset arithmetic encoding variables */ - entropy->c = 0; - entropy->a = 0x10000L; - entropy->sc = 0; - entropy->zc = 0; - entropy->ct = 11; - entropy->buffer = -1; /* empty */ -} - - -/* - * MCU encoding for DC initial scan (either spectral selection, - * or first pass of successive approximation). - */ - -METHODDEF(boolean) -encode_mcu_DC_first (j_compress_ptr cinfo, JBLOCKROW *MCU_data) -{ - arith_entropy_ptr entropy = (arith_entropy_ptr) cinfo->entropy; - JBLOCKROW block; - unsigned char *st; - int blkn, ci, tbl; - int v, v2, m; - ISHIFT_TEMPS - - /* Emit restart marker if needed */ - if (cinfo->restart_interval) { - if (entropy->restarts_to_go == 0) { - emit_restart(cinfo, entropy->next_restart_num); - entropy->restarts_to_go = cinfo->restart_interval; - entropy->next_restart_num++; - entropy->next_restart_num &= 7; - } - entropy->restarts_to_go--; - } - - /* Encode the MCU data blocks */ - for (blkn = 0; blkn < cinfo->blocks_in_MCU; blkn++) { - block = MCU_data[blkn]; - ci = cinfo->MCU_membership[blkn]; - tbl = cinfo->cur_comp_info[ci]->dc_tbl_no; - - /* Compute the DC value after the required point transform by Al. - * This is simply an arithmetic right shift. - */ - m = IRIGHT_SHIFT((int) ((*block)[0]), cinfo->Al); - - /* Sections F.1.4.1 & F.1.4.4.1: Encoding of DC coefficients */ - - /* Table F.4: Point to statistics bin S0 for DC coefficient coding */ - st = entropy->dc_stats[tbl] + entropy->dc_context[ci]; - - /* Figure F.4: Encode_DC_DIFF */ - if ((v = m - entropy->last_dc_val[ci]) == 0) { - arith_encode(cinfo, st, 0); - entropy->dc_context[ci] = 0; /* zero diff category */ - } else { - entropy->last_dc_val[ci] = m; - arith_encode(cinfo, st, 1); - /* Figure F.6: Encoding nonzero value v */ - /* Figure F.7: Encoding the sign of v */ - if (v > 0) { - arith_encode(cinfo, st + 1, 0); /* Table F.4: SS = S0 + 1 */ - st += 2; /* Table F.4: SP = S0 + 2 */ - entropy->dc_context[ci] = 4; /* small positive diff category */ - } else { - v = -v; - arith_encode(cinfo, st + 1, 1); /* Table F.4: SS = S0 + 1 */ - st += 3; /* Table F.4: SN = S0 + 3 */ - entropy->dc_context[ci] = 8; /* small negative diff category */ - } - /* Figure F.8: Encoding the magnitude category of v */ - m = 0; - if (v -= 1) { - arith_encode(cinfo, st, 1); - m = 1; - v2 = v; - st = entropy->dc_stats[tbl] + 20; /* Table F.4: X1 = 20 */ - while (v2 >>= 1) { - arith_encode(cinfo, st, 1); - m <<= 1; - st += 1; - } - } - arith_encode(cinfo, st, 0); - /* Section F.1.4.4.1.2: Establish dc_context conditioning category */ - if (m < (int) ((1L << cinfo->arith_dc_L[tbl]) >> 1)) - entropy->dc_context[ci] = 0; /* zero diff category */ - else if (m > (int) ((1L << cinfo->arith_dc_U[tbl]) >> 1)) - entropy->dc_context[ci] += 8; /* large diff category */ - /* Figure F.9: Encoding the magnitude bit pattern of v */ - st += 14; - while (m >>= 1) - arith_encode(cinfo, st, (m & v) ? 1 : 0); - } - } - - return TRUE; -} - - -/* - * MCU encoding for AC initial scan (either spectral selection, - * or first pass of successive approximation). - */ - -METHODDEF(boolean) -encode_mcu_AC_first (j_compress_ptr cinfo, JBLOCKROW *MCU_data) -{ - arith_entropy_ptr entropy = (arith_entropy_ptr) cinfo->entropy; - JBLOCKROW block; - unsigned char *st; - int tbl, k, ke; - int v, v2, m; - const int * natural_order; - - /* Emit restart marker if needed */ - if (cinfo->restart_interval) { - if (entropy->restarts_to_go == 0) { - emit_restart(cinfo, entropy->next_restart_num); - entropy->restarts_to_go = cinfo->restart_interval; - entropy->next_restart_num++; - entropy->next_restart_num &= 7; - } - entropy->restarts_to_go--; - } - - natural_order = cinfo->natural_order; - - /* Encode the MCU data block */ - block = MCU_data[0]; - tbl = cinfo->cur_comp_info[0]->ac_tbl_no; - - /* Sections F.1.4.2 & F.1.4.4.2: Encoding of AC coefficients */ - - /* Establish EOB (end-of-block) index */ - for (ke = cinfo->Se; ke > 0; ke--) - /* We must apply the point transform by Al. For AC coefficients this - * is an integer division with rounding towards 0. To do this portably - * in C, we shift after obtaining the absolute value. - */ - if ((v = (*block)[natural_order[ke]]) >= 0) { - if (v >>= cinfo->Al) break; - } else { - v = -v; - if (v >>= cinfo->Al) break; - } - - /* Figure F.5: Encode_AC_Coefficients */ - for (k = cinfo->Ss; k <= ke; k++) { - st = entropy->ac_stats[tbl] + 3 * (k - 1); - arith_encode(cinfo, st, 0); /* EOB decision */ - for (;;) { - if ((v = (*block)[natural_order[k]]) >= 0) { - if (v >>= cinfo->Al) { - arith_encode(cinfo, st + 1, 1); - arith_encode(cinfo, entropy->fixed_bin, 0); - break; - } - } else { - v = -v; - if (v >>= cinfo->Al) { - arith_encode(cinfo, st + 1, 1); - arith_encode(cinfo, entropy->fixed_bin, 1); - break; - } - } - arith_encode(cinfo, st + 1, 0); st += 3; k++; - } - st += 2; - /* Figure F.8: Encoding the magnitude category of v */ - m = 0; - if (v -= 1) { - arith_encode(cinfo, st, 1); - m = 1; - v2 = v; - if (v2 >>= 1) { - arith_encode(cinfo, st, 1); - m <<= 1; - st = entropy->ac_stats[tbl] + - (k <= cinfo->arith_ac_K[tbl] ? 189 : 217); - while (v2 >>= 1) { - arith_encode(cinfo, st, 1); - m <<= 1; - st += 1; - } - } - } - arith_encode(cinfo, st, 0); - /* Figure F.9: Encoding the magnitude bit pattern of v */ - st += 14; - while (m >>= 1) - arith_encode(cinfo, st, (m & v) ? 1 : 0); - } - /* Encode EOB decision only if k <= cinfo->Se */ - if (k <= cinfo->Se) { - st = entropy->ac_stats[tbl] + 3 * (k - 1); - arith_encode(cinfo, st, 1); - } - - return TRUE; -} - - -/* - * MCU encoding for DC successive approximation refinement scan. - */ - -METHODDEF(boolean) -encode_mcu_DC_refine (j_compress_ptr cinfo, JBLOCKROW *MCU_data) -{ - arith_entropy_ptr entropy = (arith_entropy_ptr) cinfo->entropy; - unsigned char *st; - int Al, blkn; - - /* Emit restart marker if needed */ - if (cinfo->restart_interval) { - if (entropy->restarts_to_go == 0) { - emit_restart(cinfo, entropy->next_restart_num); - entropy->restarts_to_go = cinfo->restart_interval; - entropy->next_restart_num++; - entropy->next_restart_num &= 7; - } - entropy->restarts_to_go--; - } - - st = entropy->fixed_bin; /* use fixed probability estimation */ - Al = cinfo->Al; - - /* Encode the MCU data blocks */ - for (blkn = 0; blkn < cinfo->blocks_in_MCU; blkn++) { - /* We simply emit the Al'th bit of the DC coefficient value. */ - arith_encode(cinfo, st, (MCU_data[blkn][0][0] >> Al) & 1); - } - - return TRUE; -} - - -/* - * MCU encoding for AC successive approximation refinement scan. - */ - -METHODDEF(boolean) -encode_mcu_AC_refine (j_compress_ptr cinfo, JBLOCKROW *MCU_data) -{ - arith_entropy_ptr entropy = (arith_entropy_ptr) cinfo->entropy; - JBLOCKROW block; - unsigned char *st; - int tbl, k, ke, kex; - int v; - const int * natural_order; - - /* Emit restart marker if needed */ - if (cinfo->restart_interval) { - if (entropy->restarts_to_go == 0) { - emit_restart(cinfo, entropy->next_restart_num); - entropy->restarts_to_go = cinfo->restart_interval; - entropy->next_restart_num++; - entropy->next_restart_num &= 7; - } - entropy->restarts_to_go--; - } - - natural_order = cinfo->natural_order; - - /* Encode the MCU data block */ - block = MCU_data[0]; - tbl = cinfo->cur_comp_info[0]->ac_tbl_no; - - /* Section G.1.3.3: Encoding of AC coefficients */ - - /* Establish EOB (end-of-block) index */ - for (ke = cinfo->Se; ke > 0; ke--) - /* We must apply the point transform by Al. For AC coefficients this - * is an integer division with rounding towards 0. To do this portably - * in C, we shift after obtaining the absolute value. - */ - if ((v = (*block)[natural_order[ke]]) >= 0) { - if (v >>= cinfo->Al) break; - } else { - v = -v; - if (v >>= cinfo->Al) break; - } - - /* Establish EOBx (previous stage end-of-block) index */ - for (kex = ke; kex > 0; kex--) - if ((v = (*block)[natural_order[kex]]) >= 0) { - if (v >>= cinfo->Ah) break; - } else { - v = -v; - if (v >>= cinfo->Ah) break; - } - - /* Figure G.10: Encode_AC_Coefficients_SA */ - for (k = cinfo->Ss; k <= ke; k++) { - st = entropy->ac_stats[tbl] + 3 * (k - 1); - if (k > kex) - arith_encode(cinfo, st, 0); /* EOB decision */ - for (;;) { - if ((v = (*block)[natural_order[k]]) >= 0) { - if (v >>= cinfo->Al) { - if (v >> 1) /* previously nonzero coef */ - arith_encode(cinfo, st + 2, (v & 1)); - else { /* newly nonzero coef */ - arith_encode(cinfo, st + 1, 1); - arith_encode(cinfo, entropy->fixed_bin, 0); - } - break; - } - } else { - v = -v; - if (v >>= cinfo->Al) { - if (v >> 1) /* previously nonzero coef */ - arith_encode(cinfo, st + 2, (v & 1)); - else { /* newly nonzero coef */ - arith_encode(cinfo, st + 1, 1); - arith_encode(cinfo, entropy->fixed_bin, 1); - } - break; - } - } - arith_encode(cinfo, st + 1, 0); st += 3; k++; - } - } - /* Encode EOB decision only if k <= cinfo->Se */ - if (k <= cinfo->Se) { - st = entropy->ac_stats[tbl] + 3 * (k - 1); - arith_encode(cinfo, st, 1); - } - - return TRUE; -} - - -/* - * Encode and output one MCU's worth of arithmetic-compressed coefficients. - */ - -METHODDEF(boolean) -encode_mcu (j_compress_ptr cinfo, JBLOCKROW *MCU_data) -{ - arith_entropy_ptr entropy = (arith_entropy_ptr) cinfo->entropy; - jpeg_component_info * compptr; - JBLOCKROW block; - unsigned char *st; - int blkn, ci, tbl, k, ke; - int v, v2, m; - const int * natural_order; - - /* Emit restart marker if needed */ - if (cinfo->restart_interval) { - if (entropy->restarts_to_go == 0) { - emit_restart(cinfo, entropy->next_restart_num); - entropy->restarts_to_go = cinfo->restart_interval; - entropy->next_restart_num++; - entropy->next_restart_num &= 7; - } - entropy->restarts_to_go--; - } - - natural_order = cinfo->natural_order; - - /* Encode the MCU data blocks */ - for (blkn = 0; blkn < cinfo->blocks_in_MCU; blkn++) { - block = MCU_data[blkn]; - ci = cinfo->MCU_membership[blkn]; - compptr = cinfo->cur_comp_info[ci]; - - /* Sections F.1.4.1 & F.1.4.4.1: Encoding of DC coefficients */ - - tbl = compptr->dc_tbl_no; - - /* Table F.4: Point to statistics bin S0 for DC coefficient coding */ - st = entropy->dc_stats[tbl] + entropy->dc_context[ci]; - - /* Figure F.4: Encode_DC_DIFF */ - if ((v = (*block)[0] - entropy->last_dc_val[ci]) == 0) { - arith_encode(cinfo, st, 0); - entropy->dc_context[ci] = 0; /* zero diff category */ - } else { - entropy->last_dc_val[ci] = (*block)[0]; - arith_encode(cinfo, st, 1); - /* Figure F.6: Encoding nonzero value v */ - /* Figure F.7: Encoding the sign of v */ - if (v > 0) { - arith_encode(cinfo, st + 1, 0); /* Table F.4: SS = S0 + 1 */ - st += 2; /* Table F.4: SP = S0 + 2 */ - entropy->dc_context[ci] = 4; /* small positive diff category */ - } else { - v = -v; - arith_encode(cinfo, st + 1, 1); /* Table F.4: SS = S0 + 1 */ - st += 3; /* Table F.4: SN = S0 + 3 */ - entropy->dc_context[ci] = 8; /* small negative diff category */ - } - /* Figure F.8: Encoding the magnitude category of v */ - m = 0; - if (v -= 1) { - arith_encode(cinfo, st, 1); - m = 1; - v2 = v; - st = entropy->dc_stats[tbl] + 20; /* Table F.4: X1 = 20 */ - while (v2 >>= 1) { - arith_encode(cinfo, st, 1); - m <<= 1; - st += 1; - } - } - arith_encode(cinfo, st, 0); - /* Section F.1.4.4.1.2: Establish dc_context conditioning category */ - if (m < (int) ((1L << cinfo->arith_dc_L[tbl]) >> 1)) - entropy->dc_context[ci] = 0; /* zero diff category */ - else if (m > (int) ((1L << cinfo->arith_dc_U[tbl]) >> 1)) - entropy->dc_context[ci] += 8; /* large diff category */ - /* Figure F.9: Encoding the magnitude bit pattern of v */ - st += 14; - while (m >>= 1) - arith_encode(cinfo, st, (m & v) ? 1 : 0); - } - - /* Sections F.1.4.2 & F.1.4.4.2: Encoding of AC coefficients */ - - if ((ke = cinfo->lim_Se) == 0) continue; - tbl = compptr->ac_tbl_no; - - /* Establish EOB (end-of-block) index */ - do { - if ((*block)[natural_order[ke]]) break; - } while (--ke); - - /* Figure F.5: Encode_AC_Coefficients */ - for (k = 0; k < ke;) { - st = entropy->ac_stats[tbl] + 3 * k; - arith_encode(cinfo, st, 0); /* EOB decision */ - while ((v = (*block)[natural_order[++k]]) == 0) { - arith_encode(cinfo, st + 1, 0); - st += 3; - } - arith_encode(cinfo, st + 1, 1); - /* Figure F.6: Encoding nonzero value v */ - /* Figure F.7: Encoding the sign of v */ - if (v > 0) { - arith_encode(cinfo, entropy->fixed_bin, 0); - } else { - v = -v; - arith_encode(cinfo, entropy->fixed_bin, 1); - } - st += 2; - /* Figure F.8: Encoding the magnitude category of v */ - m = 0; - if (v -= 1) { - arith_encode(cinfo, st, 1); - m = 1; - v2 = v; - if (v2 >>= 1) { - arith_encode(cinfo, st, 1); - m <<= 1; - st = entropy->ac_stats[tbl] + - (k <= cinfo->arith_ac_K[tbl] ? 189 : 217); - while (v2 >>= 1) { - arith_encode(cinfo, st, 1); - m <<= 1; - st += 1; - } - } - } - arith_encode(cinfo, st, 0); - /* Figure F.9: Encoding the magnitude bit pattern of v */ - st += 14; - while (m >>= 1) - arith_encode(cinfo, st, (m & v) ? 1 : 0); - } - /* Encode EOB decision only if k < cinfo->lim_Se */ - if (k < cinfo->lim_Se) { - st = entropy->ac_stats[tbl] + 3 * k; - arith_encode(cinfo, st, 1); - } - } - - return TRUE; -} - - -/* - * Initialize for an arithmetic-compressed scan. - */ - -METHODDEF(void) -start_pass (j_compress_ptr cinfo, boolean gather_statistics) -{ - arith_entropy_ptr entropy = (arith_entropy_ptr) cinfo->entropy; - int ci, tbl; - jpeg_component_info * compptr; - - if (gather_statistics) - /* Make sure to avoid that in the master control logic! - * We are fully adaptive here and need no extra - * statistics gathering pass! - */ - ERREXIT(cinfo, JERR_NOT_COMPILED); - - /* We assume jcmaster.c already validated the progressive scan parameters. */ - - /* Select execution routines */ - if (cinfo->progressive_mode) { - if (cinfo->Ah == 0) { - if (cinfo->Ss == 0) - entropy->pub.encode_mcu = encode_mcu_DC_first; - else - entropy->pub.encode_mcu = encode_mcu_AC_first; - } else { - if (cinfo->Ss == 0) - entropy->pub.encode_mcu = encode_mcu_DC_refine; - else - entropy->pub.encode_mcu = encode_mcu_AC_refine; - } - } else - entropy->pub.encode_mcu = encode_mcu; - - /* Allocate & initialize requested statistics areas */ - for (ci = 0; ci < cinfo->comps_in_scan; ci++) { - compptr = cinfo->cur_comp_info[ci]; - /* DC needs no table for refinement scan */ - if (cinfo->Ss == 0 && cinfo->Ah == 0) { - tbl = compptr->dc_tbl_no; - if (tbl < 0 || tbl >= NUM_ARITH_TBLS) - ERREXIT1(cinfo, JERR_NO_ARITH_TABLE, tbl); - if (entropy->dc_stats[tbl] == NULL) - entropy->dc_stats[tbl] = (unsigned char *) (*cinfo->mem->alloc_small) - ((j_common_ptr) cinfo, JPOOL_IMAGE, DC_STAT_BINS); - MEMZERO(entropy->dc_stats[tbl], DC_STAT_BINS); - /* Initialize DC predictions to 0 */ - entropy->last_dc_val[ci] = 0; - entropy->dc_context[ci] = 0; - } - /* AC needs no table when not present */ - if (cinfo->Se) { - tbl = compptr->ac_tbl_no; - if (tbl < 0 || tbl >= NUM_ARITH_TBLS) - ERREXIT1(cinfo, JERR_NO_ARITH_TABLE, tbl); - if (entropy->ac_stats[tbl] == NULL) - entropy->ac_stats[tbl] = (unsigned char *) (*cinfo->mem->alloc_small) - ((j_common_ptr) cinfo, JPOOL_IMAGE, AC_STAT_BINS); - MEMZERO(entropy->ac_stats[tbl], AC_STAT_BINS); -#ifdef CALCULATE_SPECTRAL_CONDITIONING - if (cinfo->progressive_mode) - /* Section G.1.3.2: Set appropriate arithmetic conditioning value Kx */ - cinfo->arith_ac_K[tbl] = cinfo->Ss + ((8 + cinfo->Se - cinfo->Ss) >> 4); -#endif - } - } - - /* Initialize arithmetic encoding variables */ - entropy->c = 0; - entropy->a = 0x10000L; - entropy->sc = 0; - entropy->zc = 0; - entropy->ct = 11; - entropy->buffer = -1; /* empty */ - - /* Initialize restart stuff */ - entropy->restarts_to_go = cinfo->restart_interval; - entropy->next_restart_num = 0; -} - - -/* - * Module initialization routine for arithmetic entropy encoding. - */ - -GLOBAL(void) -jinit_arith_encoder (j_compress_ptr cinfo) -{ - arith_entropy_ptr entropy; - int i; - - entropy = (arith_entropy_ptr) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - SIZEOF(arith_entropy_encoder)); - cinfo->entropy = (struct jpeg_entropy_encoder *) entropy; - entropy->pub.start_pass = start_pass; - entropy->pub.finish_pass = finish_pass; - - /* Mark tables unallocated */ - for (i = 0; i < NUM_ARITH_TBLS; i++) { - entropy->dc_stats[i] = NULL; - entropy->ac_stats[i] = NULL; - } - - /* Initialize index for fixed probability estimation */ - entropy->fixed_bin[0] = 113; -} diff --git a/jpg/jccoefct.c b/jpg/jccoefct.c deleted file mode 100644 index 924a703..0000000 --- a/jpg/jccoefct.c +++ /dev/null @@ -1,454 +0,0 @@ -/* - * jccoefct.c - * - * Copyright (C) 1994-1997, Thomas G. Lane. - * Modified 2003-2011 by Guido Vollbeding. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file contains the coefficient buffer controller for compression. - * This controller is the top level of the JPEG compressor proper. - * The coefficient buffer lies between forward-DCT and entropy encoding steps. - */ - -#define JPEG_INTERNALS -#include "jinclude.h" -#include "jpeglib.h" - - -/* We use a full-image coefficient buffer when doing Huffman optimization, - * and also for writing multiple-scan JPEG files. In all cases, the DCT - * step is run during the first pass, and subsequent passes need only read - * the buffered coefficients. - */ -#ifdef ENTROPY_OPT_SUPPORTED -#define FULL_COEF_BUFFER_SUPPORTED -#else -#ifdef C_MULTISCAN_FILES_SUPPORTED -#define FULL_COEF_BUFFER_SUPPORTED -#endif -#endif - - -/* Private buffer controller object */ - -typedef struct { - struct jpeg_c_coef_controller pub; /* public fields */ - - JDIMENSION iMCU_row_num; /* iMCU row # within image */ - JDIMENSION mcu_ctr; /* counts MCUs processed in current row */ - int MCU_vert_offset; /* counts MCU rows within iMCU row */ - int MCU_rows_per_iMCU_row; /* number of such rows needed */ - - /* For single-pass compression, it's sufficient to buffer just one MCU - * (although this may prove a bit slow in practice). We allocate a - * workspace of C_MAX_BLOCKS_IN_MCU coefficient blocks, and reuse it for each - * MCU constructed and sent. (On 80x86, the workspace is FAR even though - * it's not really very big; this is to keep the module interfaces unchanged - * when a large coefficient buffer is necessary.) - * In multi-pass modes, this array points to the current MCU's blocks - * within the virtual arrays. - */ - JBLOCKROW MCU_buffer[C_MAX_BLOCKS_IN_MCU]; - - /* In multi-pass modes, we need a virtual block array for each component. */ - jvirt_barray_ptr whole_image[MAX_COMPONENTS]; -} my_coef_controller; - -typedef my_coef_controller * my_coef_ptr; - - -/* Forward declarations */ -METHODDEF(boolean) compress_data - JPP((j_compress_ptr cinfo, JSAMPIMAGE input_buf)); -#ifdef FULL_COEF_BUFFER_SUPPORTED -METHODDEF(boolean) compress_first_pass - JPP((j_compress_ptr cinfo, JSAMPIMAGE input_buf)); -METHODDEF(boolean) compress_output - JPP((j_compress_ptr cinfo, JSAMPIMAGE input_buf)); -#endif - - -LOCAL(void) -start_iMCU_row (j_compress_ptr cinfo) -/* Reset within-iMCU-row counters for a new row */ -{ - my_coef_ptr coef = (my_coef_ptr) cinfo->coef; - - /* In an interleaved scan, an MCU row is the same as an iMCU row. - * In a noninterleaved scan, an iMCU row has v_samp_factor MCU rows. - * But at the bottom of the image, process only what's left. - */ - if (cinfo->comps_in_scan > 1) { - coef->MCU_rows_per_iMCU_row = 1; - } else { - if (coef->iMCU_row_num < (cinfo->total_iMCU_rows-1)) - coef->MCU_rows_per_iMCU_row = cinfo->cur_comp_info[0]->v_samp_factor; - else - coef->MCU_rows_per_iMCU_row = cinfo->cur_comp_info[0]->last_row_height; - } - - coef->mcu_ctr = 0; - coef->MCU_vert_offset = 0; -} - - -/* - * Initialize for a processing pass. - */ - -METHODDEF(void) -start_pass_coef (j_compress_ptr cinfo, J_BUF_MODE pass_mode) -{ - my_coef_ptr coef = (my_coef_ptr) cinfo->coef; - - coef->iMCU_row_num = 0; - start_iMCU_row(cinfo); - - switch (pass_mode) { - case JBUF_PASS_THRU: - if (coef->whole_image[0] != NULL) - ERREXIT(cinfo, JERR_BAD_BUFFER_MODE); - coef->pub.compress_data = compress_data; - break; -#ifdef FULL_COEF_BUFFER_SUPPORTED - case JBUF_SAVE_AND_PASS: - if (coef->whole_image[0] == NULL) - ERREXIT(cinfo, JERR_BAD_BUFFER_MODE); - coef->pub.compress_data = compress_first_pass; - break; - case JBUF_CRANK_DEST: - if (coef->whole_image[0] == NULL) - ERREXIT(cinfo, JERR_BAD_BUFFER_MODE); - coef->pub.compress_data = compress_output; - break; -#endif - default: - ERREXIT(cinfo, JERR_BAD_BUFFER_MODE); - break; - } -} - - -/* - * Process some data in the single-pass case. - * We process the equivalent of one fully interleaved MCU row ("iMCU" row) - * per call, ie, v_samp_factor block rows for each component in the image. - * Returns TRUE if the iMCU row is completed, FALSE if suspended. - * - * NB: input_buf contains a plane for each component in image, - * which we index according to the component's SOF position. - */ - -METHODDEF(boolean) -compress_data (j_compress_ptr cinfo, JSAMPIMAGE input_buf) -{ - my_coef_ptr coef = (my_coef_ptr) cinfo->coef; - JDIMENSION MCU_col_num; /* index of current MCU within row */ - JDIMENSION last_MCU_col = cinfo->MCUs_per_row - 1; - JDIMENSION last_iMCU_row = cinfo->total_iMCU_rows - 1; - int blkn, bi, ci, yindex, yoffset, blockcnt; - JDIMENSION ypos, xpos; - jpeg_component_info *compptr; - forward_DCT_ptr forward_DCT; - - /* Loop to write as much as one whole iMCU row */ - for (yoffset = coef->MCU_vert_offset; yoffset < coef->MCU_rows_per_iMCU_row; - yoffset++) { - for (MCU_col_num = coef->mcu_ctr; MCU_col_num <= last_MCU_col; - MCU_col_num++) { - /* Determine where data comes from in input_buf and do the DCT thing. - * Each call on forward_DCT processes a horizontal row of DCT blocks - * as wide as an MCU; we rely on having allocated the MCU_buffer[] blocks - * sequentially. Dummy blocks at the right or bottom edge are filled in - * specially. The data in them does not matter for image reconstruction, - * so we fill them with values that will encode to the smallest amount of - * data, viz: all zeroes in the AC entries, DC entries equal to previous - * block's DC value. (Thanks to Thomas Kinsman for this idea.) - */ - blkn = 0; - for (ci = 0; ci < cinfo->comps_in_scan; ci++) { - compptr = cinfo->cur_comp_info[ci]; - forward_DCT = cinfo->fdct->forward_DCT[compptr->component_index]; - blockcnt = (MCU_col_num < last_MCU_col) ? compptr->MCU_width - : compptr->last_col_width; - xpos = MCU_col_num * compptr->MCU_sample_width; - ypos = yoffset * compptr->DCT_v_scaled_size; - /* ypos == (yoffset+yindex) * DCTSIZE */ - for (yindex = 0; yindex < compptr->MCU_height; yindex++) { - if (coef->iMCU_row_num < last_iMCU_row || - yoffset+yindex < compptr->last_row_height) { - (*forward_DCT) (cinfo, compptr, - input_buf[compptr->component_index], - coef->MCU_buffer[blkn], - ypos, xpos, (JDIMENSION) blockcnt); - if (blockcnt < compptr->MCU_width) { - /* Create some dummy blocks at the right edge of the image. */ - FMEMZERO((void FAR *) coef->MCU_buffer[blkn + blockcnt], - (compptr->MCU_width - blockcnt) * SIZEOF(JBLOCK)); - for (bi = blockcnt; bi < compptr->MCU_width; bi++) { - coef->MCU_buffer[blkn+bi][0][0] = coef->MCU_buffer[blkn+bi-1][0][0]; - } - } - } else { - /* Create a row of dummy blocks at the bottom of the image. */ - FMEMZERO((void FAR *) coef->MCU_buffer[blkn], - compptr->MCU_width * SIZEOF(JBLOCK)); - for (bi = 0; bi < compptr->MCU_width; bi++) { - coef->MCU_buffer[blkn+bi][0][0] = coef->MCU_buffer[blkn-1][0][0]; - } - } - blkn += compptr->MCU_width; - ypos += compptr->DCT_v_scaled_size; - } - } - /* Try to write the MCU. In event of a suspension failure, we will - * re-DCT the MCU on restart (a bit inefficient, could be fixed...) - */ - if (! (*cinfo->entropy->encode_mcu) (cinfo, coef->MCU_buffer)) { - /* Suspension forced; update state counters and exit */ - coef->MCU_vert_offset = yoffset; - coef->mcu_ctr = MCU_col_num; - return FALSE; - } - } - /* Completed an MCU row, but perhaps not an iMCU row */ - coef->mcu_ctr = 0; - } - /* Completed the iMCU row, advance counters for next one */ - coef->iMCU_row_num++; - start_iMCU_row(cinfo); - return TRUE; -} - - -#ifdef FULL_COEF_BUFFER_SUPPORTED - -/* - * Process some data in the first pass of a multi-pass case. - * We process the equivalent of one fully interleaved MCU row ("iMCU" row) - * per call, ie, v_samp_factor block rows for each component in the image. - * This amount of data is read from the source buffer, DCT'd and quantized, - * and saved into the virtual arrays. We also generate suitable dummy blocks - * as needed at the right and lower edges. (The dummy blocks are constructed - * in the virtual arrays, which have been padded appropriately.) This makes - * it possible for subsequent passes not to worry about real vs. dummy blocks. - * - * We must also emit the data to the entropy encoder. This is conveniently - * done by calling compress_output() after we've loaded the current strip - * of the virtual arrays. - * - * NB: input_buf contains a plane for each component in image. All - * components are DCT'd and loaded into the virtual arrays in this pass. - * However, it may be that only a subset of the components are emitted to - * the entropy encoder during this first pass; be careful about looking - * at the scan-dependent variables (MCU dimensions, etc). - */ - -METHODDEF(boolean) -compress_first_pass (j_compress_ptr cinfo, JSAMPIMAGE input_buf) -{ - my_coef_ptr coef = (my_coef_ptr) cinfo->coef; - JDIMENSION last_iMCU_row = cinfo->total_iMCU_rows - 1; - JDIMENSION blocks_across, MCUs_across, MCUindex; - int bi, ci, h_samp_factor, block_row, block_rows, ndummy; - JCOEF lastDC; - jpeg_component_info *compptr; - JBLOCKARRAY buffer; - JBLOCKROW thisblockrow, lastblockrow; - forward_DCT_ptr forward_DCT; - - for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components; - ci++, compptr++) { - /* Align the virtual buffer for this component. */ - buffer = (*cinfo->mem->access_virt_barray) - ((j_common_ptr) cinfo, coef->whole_image[ci], - coef->iMCU_row_num * compptr->v_samp_factor, - (JDIMENSION) compptr->v_samp_factor, TRUE); - /* Count non-dummy DCT block rows in this iMCU row. */ - if (coef->iMCU_row_num < last_iMCU_row) - block_rows = compptr->v_samp_factor; - else { - /* NB: can't use last_row_height here, since may not be set! */ - block_rows = (int) (compptr->height_in_blocks % compptr->v_samp_factor); - if (block_rows == 0) block_rows = compptr->v_samp_factor; - } - blocks_across = compptr->width_in_blocks; - h_samp_factor = compptr->h_samp_factor; - /* Count number of dummy blocks to be added at the right margin. */ - ndummy = (int) (blocks_across % h_samp_factor); - if (ndummy > 0) - ndummy = h_samp_factor - ndummy; - forward_DCT = cinfo->fdct->forward_DCT[ci]; - /* Perform DCT for all non-dummy blocks in this iMCU row. Each call - * on forward_DCT processes a complete horizontal row of DCT blocks. - */ - for (block_row = 0; block_row < block_rows; block_row++) { - thisblockrow = buffer[block_row]; - (*forward_DCT) (cinfo, compptr, input_buf[ci], thisblockrow, - (JDIMENSION) (block_row * compptr->DCT_v_scaled_size), - (JDIMENSION) 0, blocks_across); - if (ndummy > 0) { - /* Create dummy blocks at the right edge of the image. */ - thisblockrow += blocks_across; /* => first dummy block */ - FMEMZERO((void FAR *) thisblockrow, ndummy * SIZEOF(JBLOCK)); - lastDC = thisblockrow[-1][0]; - for (bi = 0; bi < ndummy; bi++) { - thisblockrow[bi][0] = lastDC; - } - } - } - /* If at end of image, create dummy block rows as needed. - * The tricky part here is that within each MCU, we want the DC values - * of the dummy blocks to match the last real block's DC value. - * This squeezes a few more bytes out of the resulting file... - */ - if (coef->iMCU_row_num == last_iMCU_row) { - blocks_across += ndummy; /* include lower right corner */ - MCUs_across = blocks_across / h_samp_factor; - for (block_row = block_rows; block_row < compptr->v_samp_factor; - block_row++) { - thisblockrow = buffer[block_row]; - lastblockrow = buffer[block_row-1]; - FMEMZERO((void FAR *) thisblockrow, - (size_t) (blocks_across * SIZEOF(JBLOCK))); - for (MCUindex = 0; MCUindex < MCUs_across; MCUindex++) { - lastDC = lastblockrow[h_samp_factor-1][0]; - for (bi = 0; bi < h_samp_factor; bi++) { - thisblockrow[bi][0] = lastDC; - } - thisblockrow += h_samp_factor; /* advance to next MCU in row */ - lastblockrow += h_samp_factor; - } - } - } - } - /* NB: compress_output will increment iMCU_row_num if successful. - * A suspension return will result in redoing all the work above next time. - */ - - /* Emit data to the entropy encoder, sharing code with subsequent passes */ - return compress_output(cinfo, input_buf); -} - - -/* - * Process some data in subsequent passes of a multi-pass case. - * We process the equivalent of one fully interleaved MCU row ("iMCU" row) - * per call, ie, v_samp_factor block rows for each component in the scan. - * The data is obtained from the virtual arrays and fed to the entropy coder. - * Returns TRUE if the iMCU row is completed, FALSE if suspended. - * - * NB: input_buf is ignored; it is likely to be a NULL pointer. - */ - -METHODDEF(boolean) -compress_output (j_compress_ptr cinfo, JSAMPIMAGE input_buf) -{ - my_coef_ptr coef = (my_coef_ptr) cinfo->coef; - JDIMENSION MCU_col_num; /* index of current MCU within row */ - int blkn, ci, xindex, yindex, yoffset; - JDIMENSION start_col; - JBLOCKARRAY buffer[MAX_COMPS_IN_SCAN]; - JBLOCKROW buffer_ptr; - jpeg_component_info *compptr; - - /* Align the virtual buffers for the components used in this scan. - * NB: during first pass, this is safe only because the buffers will - * already be aligned properly, so jmemmgr.c won't need to do any I/O. - */ - for (ci = 0; ci < cinfo->comps_in_scan; ci++) { - compptr = cinfo->cur_comp_info[ci]; - buffer[ci] = (*cinfo->mem->access_virt_barray) - ((j_common_ptr) cinfo, coef->whole_image[compptr->component_index], - coef->iMCU_row_num * compptr->v_samp_factor, - (JDIMENSION) compptr->v_samp_factor, FALSE); - } - - /* Loop to process one whole iMCU row */ - for (yoffset = coef->MCU_vert_offset; yoffset < coef->MCU_rows_per_iMCU_row; - yoffset++) { - for (MCU_col_num = coef->mcu_ctr; MCU_col_num < cinfo->MCUs_per_row; - MCU_col_num++) { - /* Construct list of pointers to DCT blocks belonging to this MCU */ - blkn = 0; /* index of current DCT block within MCU */ - for (ci = 0; ci < cinfo->comps_in_scan; ci++) { - compptr = cinfo->cur_comp_info[ci]; - start_col = MCU_col_num * compptr->MCU_width; - for (yindex = 0; yindex < compptr->MCU_height; yindex++) { - buffer_ptr = buffer[ci][yindex+yoffset] + start_col; - for (xindex = 0; xindex < compptr->MCU_width; xindex++) { - coef->MCU_buffer[blkn++] = buffer_ptr++; - } - } - } - /* Try to write the MCU. */ - if (! (*cinfo->entropy->encode_mcu) (cinfo, coef->MCU_buffer)) { - /* Suspension forced; update state counters and exit */ - coef->MCU_vert_offset = yoffset; - coef->mcu_ctr = MCU_col_num; - return FALSE; - } - } - /* Completed an MCU row, but perhaps not an iMCU row */ - coef->mcu_ctr = 0; - } - /* Completed the iMCU row, advance counters for next one */ - coef->iMCU_row_num++; - start_iMCU_row(cinfo); - return TRUE; -} - -#endif /* FULL_COEF_BUFFER_SUPPORTED */ - - -/* - * Initialize coefficient buffer controller. - */ - -GLOBAL(void) -jinit_c_coef_controller (j_compress_ptr cinfo, boolean need_full_buffer) -{ - my_coef_ptr coef; - - coef = (my_coef_ptr) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - SIZEOF(my_coef_controller)); - cinfo->coef = (struct jpeg_c_coef_controller *) coef; - coef->pub.start_pass = start_pass_coef; - - /* Create the coefficient buffer. */ - if (need_full_buffer) { -#ifdef FULL_COEF_BUFFER_SUPPORTED - /* Allocate a full-image virtual array for each component, */ - /* padded to a multiple of samp_factor DCT blocks in each direction. */ - int ci; - jpeg_component_info *compptr; - - for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components; - ci++, compptr++) { - coef->whole_image[ci] = (*cinfo->mem->request_virt_barray) - ((j_common_ptr) cinfo, JPOOL_IMAGE, FALSE, - (JDIMENSION) jround_up((long) compptr->width_in_blocks, - (long) compptr->h_samp_factor), - (JDIMENSION) jround_up((long) compptr->height_in_blocks, - (long) compptr->v_samp_factor), - (JDIMENSION) compptr->v_samp_factor); - } -#else - ERREXIT(cinfo, JERR_BAD_BUFFER_MODE); -#endif - } else { - /* We only need a single-MCU buffer. */ - JBLOCKROW buffer; - int i; - - buffer = (JBLOCKROW) - (*cinfo->mem->alloc_large) ((j_common_ptr) cinfo, JPOOL_IMAGE, - C_MAX_BLOCKS_IN_MCU * SIZEOF(JBLOCK)); - for (i = 0; i < C_MAX_BLOCKS_IN_MCU; i++) { - coef->MCU_buffer[i] = buffer + i; - } - coef->whole_image[0] = NULL; /* flag for no virtual arrays */ - } -} diff --git a/jpg/jccolor.c b/jpg/jccolor.c deleted file mode 100644 index 3e2d0e9..0000000 --- a/jpg/jccolor.c +++ /dev/null @@ -1,490 +0,0 @@ -/* - * jccolor.c - * - * Copyright (C) 1991-1996, Thomas G. Lane. - * Modified 2011 by Guido Vollbeding. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file contains input colorspace conversion routines. - */ - -#define JPEG_INTERNALS -#include "jinclude.h" -#include "jpeglib.h" - - -/* Private subobject */ - -typedef struct { - struct jpeg_color_converter pub; /* public fields */ - - /* Private state for RGB->YCC conversion */ - INT32 * rgb_ycc_tab; /* => table for RGB to YCbCr conversion */ -} my_color_converter; - -typedef my_color_converter * my_cconvert_ptr; - - -/**************** RGB -> YCbCr conversion: most common case **************/ - -/* - * YCbCr is defined per CCIR 601-1, except that Cb and Cr are - * normalized to the range 0..MAXJSAMPLE rather than -0.5 .. 0.5. - * The conversion equations to be implemented are therefore - * Y = 0.29900 * R + 0.58700 * G + 0.11400 * B - * Cb = -0.16874 * R - 0.33126 * G + 0.50000 * B + CENTERJSAMPLE - * Cr = 0.50000 * R - 0.41869 * G - 0.08131 * B + CENTERJSAMPLE - * (These numbers are derived from TIFF 6.0 section 21, dated 3-June-92.) - * Note: older versions of the IJG code used a zero offset of MAXJSAMPLE/2, - * rather than CENTERJSAMPLE, for Cb and Cr. This gave equal positive and - * negative swings for Cb/Cr, but meant that grayscale values (Cb=Cr=0) - * were not represented exactly. Now we sacrifice exact representation of - * maximum red and maximum blue in order to get exact grayscales. - * - * To avoid floating-point arithmetic, we represent the fractional constants - * as integers scaled up by 2^16 (about 4 digits precision); we have to divide - * the products by 2^16, with appropriate rounding, to get the correct answer. - * - * For even more speed, we avoid doing any multiplications in the inner loop - * by precalculating the constants times R,G,B for all possible values. - * For 8-bit JSAMPLEs this is very reasonable (only 256 entries per table); - * for 12-bit samples it is still acceptable. It's not very reasonable for - * 16-bit samples, but if you want lossless storage you shouldn't be changing - * colorspace anyway. - * The CENTERJSAMPLE offsets and the rounding fudge-factor of 0.5 are included - * in the tables to save adding them separately in the inner loop. - */ - -#define SCALEBITS 16 /* speediest right-shift on some machines */ -#define CBCR_OFFSET ((INT32) CENTERJSAMPLE << SCALEBITS) -#define ONE_HALF ((INT32) 1 << (SCALEBITS-1)) -#define FIX(x) ((INT32) ((x) * (1L< Y section */ -#define G_Y_OFF (1*(MAXJSAMPLE+1)) /* offset to G => Y section */ -#define B_Y_OFF (2*(MAXJSAMPLE+1)) /* etc. */ -#define R_CB_OFF (3*(MAXJSAMPLE+1)) -#define G_CB_OFF (4*(MAXJSAMPLE+1)) -#define B_CB_OFF (5*(MAXJSAMPLE+1)) -#define R_CR_OFF B_CB_OFF /* B=>Cb, R=>Cr are the same */ -#define G_CR_OFF (6*(MAXJSAMPLE+1)) -#define B_CR_OFF (7*(MAXJSAMPLE+1)) -#define TABLE_SIZE (8*(MAXJSAMPLE+1)) - - -/* - * Initialize for RGB->YCC colorspace conversion. - */ - -METHODDEF(void) -rgb_ycc_start (j_compress_ptr cinfo) -{ - my_cconvert_ptr cconvert = (my_cconvert_ptr) cinfo->cconvert; - INT32 * rgb_ycc_tab; - INT32 i; - - /* Allocate and fill in the conversion tables. */ - cconvert->rgb_ycc_tab = rgb_ycc_tab = (INT32 *) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - (TABLE_SIZE * SIZEOF(INT32))); - - for (i = 0; i <= MAXJSAMPLE; i++) { - rgb_ycc_tab[i+R_Y_OFF] = FIX(0.29900) * i; - rgb_ycc_tab[i+G_Y_OFF] = FIX(0.58700) * i; - rgb_ycc_tab[i+B_Y_OFF] = FIX(0.11400) * i + ONE_HALF; - rgb_ycc_tab[i+R_CB_OFF] = (-FIX(0.16874)) * i; - rgb_ycc_tab[i+G_CB_OFF] = (-FIX(0.33126)) * i; - /* We use a rounding fudge-factor of 0.5-epsilon for Cb and Cr. - * This ensures that the maximum output will round to MAXJSAMPLE - * not MAXJSAMPLE+1, and thus that we don't have to range-limit. - */ - rgb_ycc_tab[i+B_CB_OFF] = FIX(0.50000) * i + CBCR_OFFSET + ONE_HALF-1; -/* B=>Cb and R=>Cr tables are the same - rgb_ycc_tab[i+R_CR_OFF] = FIX(0.50000) * i + CBCR_OFFSET + ONE_HALF-1; -*/ - rgb_ycc_tab[i+G_CR_OFF] = (-FIX(0.41869)) * i; - rgb_ycc_tab[i+B_CR_OFF] = (-FIX(0.08131)) * i; - } -} - - -/* - * Convert some rows of samples to the JPEG colorspace. - * - * Note that we change from the application's interleaved-pixel format - * to our internal noninterleaved, one-plane-per-component format. - * The input buffer is therefore three times as wide as the output buffer. - * - * A starting row offset is provided only for the output buffer. The caller - * can easily adjust the passed input_buf value to accommodate any row - * offset required on that side. - */ - -METHODDEF(void) -rgb_ycc_convert (j_compress_ptr cinfo, - JSAMPARRAY input_buf, JSAMPIMAGE output_buf, - JDIMENSION output_row, int num_rows) -{ - my_cconvert_ptr cconvert = (my_cconvert_ptr) cinfo->cconvert; - register int r, g, b; - register INT32 * ctab = cconvert->rgb_ycc_tab; - register JSAMPROW inptr; - register JSAMPROW outptr0, outptr1, outptr2; - register JDIMENSION col; - JDIMENSION num_cols = cinfo->image_width; - - while (--num_rows >= 0) { - inptr = *input_buf++; - outptr0 = output_buf[0][output_row]; - outptr1 = output_buf[1][output_row]; - outptr2 = output_buf[2][output_row]; - output_row++; - for (col = 0; col < num_cols; col++) { - r = GETJSAMPLE(inptr[RGB_RED]); - g = GETJSAMPLE(inptr[RGB_GREEN]); - b = GETJSAMPLE(inptr[RGB_BLUE]); - inptr += RGB_PIXELSIZE; - /* If the inputs are 0..MAXJSAMPLE, the outputs of these equations - * must be too; we do not need an explicit range-limiting operation. - * Hence the value being shifted is never negative, and we don't - * need the general RIGHT_SHIFT macro. - */ - /* Y */ - outptr0[col] = (JSAMPLE) - ((ctab[r+R_Y_OFF] + ctab[g+G_Y_OFF] + ctab[b+B_Y_OFF]) - >> SCALEBITS); - /* Cb */ - outptr1[col] = (JSAMPLE) - ((ctab[r+R_CB_OFF] + ctab[g+G_CB_OFF] + ctab[b+B_CB_OFF]) - >> SCALEBITS); - /* Cr */ - outptr2[col] = (JSAMPLE) - ((ctab[r+R_CR_OFF] + ctab[g+G_CR_OFF] + ctab[b+B_CR_OFF]) - >> SCALEBITS); - } - } -} - - -/**************** Cases other than RGB -> YCbCr **************/ - - -/* - * Convert some rows of samples to the JPEG colorspace. - * This version handles RGB->grayscale conversion, which is the same - * as the RGB->Y portion of RGB->YCbCr. - * We assume rgb_ycc_start has been called (we only use the Y tables). - */ - -METHODDEF(void) -rgb_gray_convert (j_compress_ptr cinfo, - JSAMPARRAY input_buf, JSAMPIMAGE output_buf, - JDIMENSION output_row, int num_rows) -{ - my_cconvert_ptr cconvert = (my_cconvert_ptr) cinfo->cconvert; - register int r, g, b; - register INT32 * ctab = cconvert->rgb_ycc_tab; - register JSAMPROW inptr; - register JSAMPROW outptr; - register JDIMENSION col; - JDIMENSION num_cols = cinfo->image_width; - - while (--num_rows >= 0) { - inptr = *input_buf++; - outptr = output_buf[0][output_row]; - output_row++; - for (col = 0; col < num_cols; col++) { - r = GETJSAMPLE(inptr[RGB_RED]); - g = GETJSAMPLE(inptr[RGB_GREEN]); - b = GETJSAMPLE(inptr[RGB_BLUE]); - inptr += RGB_PIXELSIZE; - /* Y */ - outptr[col] = (JSAMPLE) - ((ctab[r+R_Y_OFF] + ctab[g+G_Y_OFF] + ctab[b+B_Y_OFF]) - >> SCALEBITS); - } - } -} - - -/* - * Convert some rows of samples to the JPEG colorspace. - * This version handles Adobe-style CMYK->YCCK conversion, - * where we convert R=1-C, G=1-M, and B=1-Y to YCbCr using the same - * conversion as above, while passing K (black) unchanged. - * We assume rgb_ycc_start has been called. - */ - -METHODDEF(void) -cmyk_ycck_convert (j_compress_ptr cinfo, - JSAMPARRAY input_buf, JSAMPIMAGE output_buf, - JDIMENSION output_row, int num_rows) -{ - my_cconvert_ptr cconvert = (my_cconvert_ptr) cinfo->cconvert; - register int r, g, b; - register INT32 * ctab = cconvert->rgb_ycc_tab; - register JSAMPROW inptr; - register JSAMPROW outptr0, outptr1, outptr2, outptr3; - register JDIMENSION col; - JDIMENSION num_cols = cinfo->image_width; - - while (--num_rows >= 0) { - inptr = *input_buf++; - outptr0 = output_buf[0][output_row]; - outptr1 = output_buf[1][output_row]; - outptr2 = output_buf[2][output_row]; - outptr3 = output_buf[3][output_row]; - output_row++; - for (col = 0; col < num_cols; col++) { - r = MAXJSAMPLE - GETJSAMPLE(inptr[0]); - g = MAXJSAMPLE - GETJSAMPLE(inptr[1]); - b = MAXJSAMPLE - GETJSAMPLE(inptr[2]); - /* K passes through as-is */ - outptr3[col] = inptr[3]; /* don't need GETJSAMPLE here */ - inptr += 4; - /* If the inputs are 0..MAXJSAMPLE, the outputs of these equations - * must be too; we do not need an explicit range-limiting operation. - * Hence the value being shifted is never negative, and we don't - * need the general RIGHT_SHIFT macro. - */ - /* Y */ - outptr0[col] = (JSAMPLE) - ((ctab[r+R_Y_OFF] + ctab[g+G_Y_OFF] + ctab[b+B_Y_OFF]) - >> SCALEBITS); - /* Cb */ - outptr1[col] = (JSAMPLE) - ((ctab[r+R_CB_OFF] + ctab[g+G_CB_OFF] + ctab[b+B_CB_OFF]) - >> SCALEBITS); - /* Cr */ - outptr2[col] = (JSAMPLE) - ((ctab[r+R_CR_OFF] + ctab[g+G_CR_OFF] + ctab[b+B_CR_OFF]) - >> SCALEBITS); - } - } -} - - -/* - * Convert some rows of samples to the JPEG colorspace. - * This version handles grayscale output with no conversion. - * The source can be either plain grayscale or YCbCr (since Y == gray). - */ - -METHODDEF(void) -grayscale_convert (j_compress_ptr cinfo, - JSAMPARRAY input_buf, JSAMPIMAGE output_buf, - JDIMENSION output_row, int num_rows) -{ - register JSAMPROW inptr; - register JSAMPROW outptr; - register JDIMENSION col; - JDIMENSION num_cols = cinfo->image_width; - int instride = cinfo->input_components; - - while (--num_rows >= 0) { - inptr = *input_buf++; - outptr = output_buf[0][output_row]; - output_row++; - for (col = 0; col < num_cols; col++) { - outptr[col] = inptr[0]; /* don't need GETJSAMPLE() here */ - inptr += instride; - } - } -} - - -/* - * Convert some rows of samples to the JPEG colorspace. - * No colorspace conversion, but change from interleaved - * to separate-planes representation. - */ - -METHODDEF(void) -rgb_convert (j_compress_ptr cinfo, - JSAMPARRAY input_buf, JSAMPIMAGE output_buf, - JDIMENSION output_row, int num_rows) -{ - register JSAMPROW inptr; - register JSAMPROW outptr0, outptr1, outptr2; - register JDIMENSION col; - JDIMENSION num_cols = cinfo->image_width; - - while (--num_rows >= 0) { - inptr = *input_buf++; - outptr0 = output_buf[0][output_row]; - outptr1 = output_buf[1][output_row]; - outptr2 = output_buf[2][output_row]; - output_row++; - for (col = 0; col < num_cols; col++) { - /* We can dispense with GETJSAMPLE() here */ - outptr0[col] = inptr[RGB_RED]; - outptr1[col] = inptr[RGB_GREEN]; - outptr2[col] = inptr[RGB_BLUE]; - inptr += RGB_PIXELSIZE; - } - } -} - - -/* - * Convert some rows of samples to the JPEG colorspace. - * This version handles multi-component colorspaces without conversion. - * We assume input_components == num_components. - */ - -METHODDEF(void) -null_convert (j_compress_ptr cinfo, - JSAMPARRAY input_buf, JSAMPIMAGE output_buf, - JDIMENSION output_row, int num_rows) -{ - register JSAMPROW inptr; - register JSAMPROW outptr; - register JDIMENSION col; - register int ci; - int nc = cinfo->num_components; - JDIMENSION num_cols = cinfo->image_width; - - while (--num_rows >= 0) { - /* It seems fastest to make a separate pass for each component. */ - for (ci = 0; ci < nc; ci++) { - inptr = *input_buf; - outptr = output_buf[ci][output_row]; - for (col = 0; col < num_cols; col++) { - outptr[col] = inptr[ci]; /* don't need GETJSAMPLE() here */ - inptr += nc; - } - } - input_buf++; - output_row++; - } -} - - -/* - * Empty method for start_pass. - */ - -METHODDEF(void) -null_method (j_compress_ptr cinfo) -{ - /* no work needed */ -} - - -/* - * Module initialization routine for input colorspace conversion. - */ - -GLOBAL(void) -jinit_color_converter (j_compress_ptr cinfo) -{ - my_cconvert_ptr cconvert; - - cconvert = (my_cconvert_ptr) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - SIZEOF(my_color_converter)); - cinfo->cconvert = (struct jpeg_color_converter *) cconvert; - /* set start_pass to null method until we find out differently */ - cconvert->pub.start_pass = null_method; - - /* Make sure input_components agrees with in_color_space */ - switch (cinfo->in_color_space) { - case JCS_GRAYSCALE: - if (cinfo->input_components != 1) - ERREXIT(cinfo, JERR_BAD_IN_COLORSPACE); - break; - - case JCS_RGB: - if (cinfo->input_components != RGB_PIXELSIZE) - ERREXIT(cinfo, JERR_BAD_IN_COLORSPACE); - break; - - case JCS_YCbCr: - if (cinfo->input_components != 3) - ERREXIT(cinfo, JERR_BAD_IN_COLORSPACE); - break; - - case JCS_CMYK: - case JCS_YCCK: - if (cinfo->input_components != 4) - ERREXIT(cinfo, JERR_BAD_IN_COLORSPACE); - break; - - default: /* JCS_UNKNOWN can be anything */ - if (cinfo->input_components < 1) - ERREXIT(cinfo, JERR_BAD_IN_COLORSPACE); - break; - } - - /* Check num_components, set conversion method based on requested space */ - switch (cinfo->jpeg_color_space) { - case JCS_GRAYSCALE: - if (cinfo->num_components != 1) - ERREXIT(cinfo, JERR_BAD_J_COLORSPACE); - if (cinfo->in_color_space == JCS_GRAYSCALE || - cinfo->in_color_space == JCS_YCbCr) - cconvert->pub.color_convert = grayscale_convert; - else if (cinfo->in_color_space == JCS_RGB) { - cconvert->pub.start_pass = rgb_ycc_start; - cconvert->pub.color_convert = rgb_gray_convert; - } else - ERREXIT(cinfo, JERR_CONVERSION_NOTIMPL); - break; - - case JCS_RGB: - if (cinfo->num_components != 3) - ERREXIT(cinfo, JERR_BAD_J_COLORSPACE); - if (cinfo->in_color_space == JCS_RGB) - cconvert->pub.color_convert = rgb_convert; - else - ERREXIT(cinfo, JERR_CONVERSION_NOTIMPL); - break; - - case JCS_YCbCr: - if (cinfo->num_components != 3) - ERREXIT(cinfo, JERR_BAD_J_COLORSPACE); - if (cinfo->in_color_space == JCS_RGB) { - cconvert->pub.start_pass = rgb_ycc_start; - cconvert->pub.color_convert = rgb_ycc_convert; - } else if (cinfo->in_color_space == JCS_YCbCr) - cconvert->pub.color_convert = null_convert; - else - ERREXIT(cinfo, JERR_CONVERSION_NOTIMPL); - break; - - case JCS_CMYK: - if (cinfo->num_components != 4) - ERREXIT(cinfo, JERR_BAD_J_COLORSPACE); - if (cinfo->in_color_space == JCS_CMYK) - cconvert->pub.color_convert = null_convert; - else - ERREXIT(cinfo, JERR_CONVERSION_NOTIMPL); - break; - - case JCS_YCCK: - if (cinfo->num_components != 4) - ERREXIT(cinfo, JERR_BAD_J_COLORSPACE); - if (cinfo->in_color_space == JCS_CMYK) { - cconvert->pub.start_pass = rgb_ycc_start; - cconvert->pub.color_convert = cmyk_ycck_convert; - } else if (cinfo->in_color_space == JCS_YCCK) - cconvert->pub.color_convert = null_convert; - else - ERREXIT(cinfo, JERR_CONVERSION_NOTIMPL); - break; - - default: /* allow null conversion of JCS_UNKNOWN */ - if (cinfo->jpeg_color_space != cinfo->in_color_space || - cinfo->num_components != cinfo->input_components) - ERREXIT(cinfo, JERR_CONVERSION_NOTIMPL); - cconvert->pub.color_convert = null_convert; - break; - } -} diff --git a/jpg/jcdctmgr.c b/jpg/jcdctmgr.c deleted file mode 100644 index 0bbdbb6..0000000 --- a/jpg/jcdctmgr.c +++ /dev/null @@ -1,482 +0,0 @@ -/* - * jcdctmgr.c - * - * Copyright (C) 1994-1996, Thomas G. Lane. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file contains the forward-DCT management logic. - * This code selects a particular DCT implementation to be used, - * and it performs related housekeeping chores including coefficient - * quantization. - */ - -#define JPEG_INTERNALS -#include "jinclude.h" -#include "jpeglib.h" -#include "jdct.h" /* Private declarations for DCT subsystem */ - - -/* Private subobject for this module */ - -typedef struct { - struct jpeg_forward_dct pub; /* public fields */ - - /* Pointer to the DCT routine actually in use */ - forward_DCT_method_ptr do_dct[MAX_COMPONENTS]; - - /* The actual post-DCT divisors --- not identical to the quant table - * entries, because of scaling (especially for an unnormalized DCT). - * Each table is given in normal array order. - */ - DCTELEM * divisors[NUM_QUANT_TBLS]; - -#ifdef DCT_FLOAT_SUPPORTED - /* Same as above for the floating-point case. */ - float_DCT_method_ptr do_float_dct[MAX_COMPONENTS]; - FAST_FLOAT * float_divisors[NUM_QUANT_TBLS]; -#endif -} my_fdct_controller; - -typedef my_fdct_controller * my_fdct_ptr; - - -/* The current scaled-DCT routines require ISLOW-style divisor tables, - * so be sure to compile that code if either ISLOW or SCALING is requested. - */ -#ifdef DCT_ISLOW_SUPPORTED -#define PROVIDE_ISLOW_TABLES -#else -#ifdef DCT_SCALING_SUPPORTED -#define PROVIDE_ISLOW_TABLES -#endif -#endif - - -/* - * Perform forward DCT on one or more blocks of a component. - * - * The input samples are taken from the sample_data[] array starting at - * position start_row/start_col, and moving to the right for any additional - * blocks. The quantized coefficients are returned in coef_blocks[]. - */ - -METHODDEF(void) -forward_DCT (j_compress_ptr cinfo, jpeg_component_info * compptr, - JSAMPARRAY sample_data, JBLOCKROW coef_blocks, - JDIMENSION start_row, JDIMENSION start_col, - JDIMENSION num_blocks) -/* This version is used for integer DCT implementations. */ -{ - /* This routine is heavily used, so it's worth coding it tightly. */ - my_fdct_ptr fdct = (my_fdct_ptr) cinfo->fdct; - forward_DCT_method_ptr do_dct = fdct->do_dct[compptr->component_index]; - DCTELEM * divisors = fdct->divisors[compptr->quant_tbl_no]; - DCTELEM workspace[DCTSIZE2]; /* work area for FDCT subroutine */ - JDIMENSION bi; - - sample_data += start_row; /* fold in the vertical offset once */ - - for (bi = 0; bi < num_blocks; bi++, start_col += compptr->DCT_h_scaled_size) { - /* Perform the DCT */ - (*do_dct) (workspace, sample_data, start_col); - - /* Quantize/descale the coefficients, and store into coef_blocks[] */ - { register DCTELEM temp, qval; - register int i; - register JCOEFPTR output_ptr = coef_blocks[bi]; - - for (i = 0; i < DCTSIZE2; i++) { - qval = divisors[i]; - temp = workspace[i]; - /* Divide the coefficient value by qval, ensuring proper rounding. - * Since C does not specify the direction of rounding for negative - * quotients, we have to force the dividend positive for portability. - * - * In most files, at least half of the output values will be zero - * (at default quantization settings, more like three-quarters...) - * so we should ensure that this case is fast. On many machines, - * a comparison is enough cheaper than a divide to make a special test - * a win. Since both inputs will be nonnegative, we need only test - * for a < b to discover whether a/b is 0. - * If your machine's division is fast enough, define FAST_DIVIDE. - */ -#ifdef FAST_DIVIDE -#define DIVIDE_BY(a,b) a /= b -#else -#define DIVIDE_BY(a,b) if (a >= b) a /= b; else a = 0 -#endif - if (temp < 0) { - temp = -temp; - temp += qval>>1; /* for rounding */ - DIVIDE_BY(temp, qval); - temp = -temp; - } else { - temp += qval>>1; /* for rounding */ - DIVIDE_BY(temp, qval); - } - output_ptr[i] = (JCOEF) temp; - } - } - } -} - - -#ifdef DCT_FLOAT_SUPPORTED - -METHODDEF(void) -forward_DCT_float (j_compress_ptr cinfo, jpeg_component_info * compptr, - JSAMPARRAY sample_data, JBLOCKROW coef_blocks, - JDIMENSION start_row, JDIMENSION start_col, - JDIMENSION num_blocks) -/* This version is used for floating-point DCT implementations. */ -{ - /* This routine is heavily used, so it's worth coding it tightly. */ - my_fdct_ptr fdct = (my_fdct_ptr) cinfo->fdct; - float_DCT_method_ptr do_dct = fdct->do_float_dct[compptr->component_index]; - FAST_FLOAT * divisors = fdct->float_divisors[compptr->quant_tbl_no]; - FAST_FLOAT workspace[DCTSIZE2]; /* work area for FDCT subroutine */ - JDIMENSION bi; - - sample_data += start_row; /* fold in the vertical offset once */ - - for (bi = 0; bi < num_blocks; bi++, start_col += compptr->DCT_h_scaled_size) { - /* Perform the DCT */ - (*do_dct) (workspace, sample_data, start_col); - - /* Quantize/descale the coefficients, and store into coef_blocks[] */ - { register FAST_FLOAT temp; - register int i; - register JCOEFPTR output_ptr = coef_blocks[bi]; - - for (i = 0; i < DCTSIZE2; i++) { - /* Apply the quantization and scaling factor */ - temp = workspace[i] * divisors[i]; - /* Round to nearest integer. - * Since C does not specify the direction of rounding for negative - * quotients, we have to force the dividend positive for portability. - * The maximum coefficient size is +-16K (for 12-bit data), so this - * code should work for either 16-bit or 32-bit ints. - */ - output_ptr[i] = (JCOEF) ((int) (temp + (FAST_FLOAT) 16384.5) - 16384); - } - } - } -} - -#endif /* DCT_FLOAT_SUPPORTED */ - - -/* - * Initialize for a processing pass. - * Verify that all referenced Q-tables are present, and set up - * the divisor table for each one. - * In the current implementation, DCT of all components is done during - * the first pass, even if only some components will be output in the - * first scan. Hence all components should be examined here. - */ - -METHODDEF(void) -start_pass_fdctmgr (j_compress_ptr cinfo) -{ - my_fdct_ptr fdct = (my_fdct_ptr) cinfo->fdct; - int ci, qtblno, i; - jpeg_component_info *compptr; - int method = 0; - JQUANT_TBL * qtbl; - DCTELEM * dtbl; - - for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components; - ci++, compptr++) { - /* Select the proper DCT routine for this component's scaling */ - switch ((compptr->DCT_h_scaled_size << 8) + compptr->DCT_v_scaled_size) { -#ifdef DCT_SCALING_SUPPORTED - case ((1 << 8) + 1): - fdct->do_dct[ci] = jpeg_fdct_1x1; - method = JDCT_ISLOW; /* jfdctint uses islow-style table */ - break; - case ((2 << 8) + 2): - fdct->do_dct[ci] = jpeg_fdct_2x2; - method = JDCT_ISLOW; /* jfdctint uses islow-style table */ - break; - case ((3 << 8) + 3): - fdct->do_dct[ci] = jpeg_fdct_3x3; - method = JDCT_ISLOW; /* jfdctint uses islow-style table */ - break; - case ((4 << 8) + 4): - fdct->do_dct[ci] = jpeg_fdct_4x4; - method = JDCT_ISLOW; /* jfdctint uses islow-style table */ - break; - case ((5 << 8) + 5): - fdct->do_dct[ci] = jpeg_fdct_5x5; - method = JDCT_ISLOW; /* jfdctint uses islow-style table */ - break; - case ((6 << 8) + 6): - fdct->do_dct[ci] = jpeg_fdct_6x6; - method = JDCT_ISLOW; /* jfdctint uses islow-style table */ - break; - case ((7 << 8) + 7): - fdct->do_dct[ci] = jpeg_fdct_7x7; - method = JDCT_ISLOW; /* jfdctint uses islow-style table */ - break; - case ((9 << 8) + 9): - fdct->do_dct[ci] = jpeg_fdct_9x9; - method = JDCT_ISLOW; /* jfdctint uses islow-style table */ - break; - case ((10 << 8) + 10): - fdct->do_dct[ci] = jpeg_fdct_10x10; - method = JDCT_ISLOW; /* jfdctint uses islow-style table */ - break; - case ((11 << 8) + 11): - fdct->do_dct[ci] = jpeg_fdct_11x11; - method = JDCT_ISLOW; /* jfdctint uses islow-style table */ - break; - case ((12 << 8) + 12): - fdct->do_dct[ci] = jpeg_fdct_12x12; - method = JDCT_ISLOW; /* jfdctint uses islow-style table */ - break; - case ((13 << 8) + 13): - fdct->do_dct[ci] = jpeg_fdct_13x13; - method = JDCT_ISLOW; /* jfdctint uses islow-style table */ - break; - case ((14 << 8) + 14): - fdct->do_dct[ci] = jpeg_fdct_14x14; - method = JDCT_ISLOW; /* jfdctint uses islow-style table */ - break; - case ((15 << 8) + 15): - fdct->do_dct[ci] = jpeg_fdct_15x15; - method = JDCT_ISLOW; /* jfdctint uses islow-style table */ - break; - case ((16 << 8) + 16): - fdct->do_dct[ci] = jpeg_fdct_16x16; - method = JDCT_ISLOW; /* jfdctint uses islow-style table */ - break; - case ((16 << 8) + 8): - fdct->do_dct[ci] = jpeg_fdct_16x8; - method = JDCT_ISLOW; /* jfdctint uses islow-style table */ - break; - case ((14 << 8) + 7): - fdct->do_dct[ci] = jpeg_fdct_14x7; - method = JDCT_ISLOW; /* jfdctint uses islow-style table */ - break; - case ((12 << 8) + 6): - fdct->do_dct[ci] = jpeg_fdct_12x6; - method = JDCT_ISLOW; /* jfdctint uses islow-style table */ - break; - case ((10 << 8) + 5): - fdct->do_dct[ci] = jpeg_fdct_10x5; - method = JDCT_ISLOW; /* jfdctint uses islow-style table */ - break; - case ((8 << 8) + 4): - fdct->do_dct[ci] = jpeg_fdct_8x4; - method = JDCT_ISLOW; /* jfdctint uses islow-style table */ - break; - case ((6 << 8) + 3): - fdct->do_dct[ci] = jpeg_fdct_6x3; - method = JDCT_ISLOW; /* jfdctint uses islow-style table */ - break; - case ((4 << 8) + 2): - fdct->do_dct[ci] = jpeg_fdct_4x2; - method = JDCT_ISLOW; /* jfdctint uses islow-style table */ - break; - case ((2 << 8) + 1): - fdct->do_dct[ci] = jpeg_fdct_2x1; - method = JDCT_ISLOW; /* jfdctint uses islow-style table */ - break; - case ((8 << 8) + 16): - fdct->do_dct[ci] = jpeg_fdct_8x16; - method = JDCT_ISLOW; /* jfdctint uses islow-style table */ - break; - case ((7 << 8) + 14): - fdct->do_dct[ci] = jpeg_fdct_7x14; - method = JDCT_ISLOW; /* jfdctint uses islow-style table */ - break; - case ((6 << 8) + 12): - fdct->do_dct[ci] = jpeg_fdct_6x12; - method = JDCT_ISLOW; /* jfdctint uses islow-style table */ - break; - case ((5 << 8) + 10): - fdct->do_dct[ci] = jpeg_fdct_5x10; - method = JDCT_ISLOW; /* jfdctint uses islow-style table */ - break; - case ((4 << 8) + 8): - fdct->do_dct[ci] = jpeg_fdct_4x8; - method = JDCT_ISLOW; /* jfdctint uses islow-style table */ - break; - case ((3 << 8) + 6): - fdct->do_dct[ci] = jpeg_fdct_3x6; - method = JDCT_ISLOW; /* jfdctint uses islow-style table */ - break; - case ((2 << 8) + 4): - fdct->do_dct[ci] = jpeg_fdct_2x4; - method = JDCT_ISLOW; /* jfdctint uses islow-style table */ - break; - case ((1 << 8) + 2): - fdct->do_dct[ci] = jpeg_fdct_1x2; - method = JDCT_ISLOW; /* jfdctint uses islow-style table */ - break; -#endif - case ((DCTSIZE << 8) + DCTSIZE): - switch (cinfo->dct_method) { -#ifdef DCT_ISLOW_SUPPORTED - case JDCT_ISLOW: - fdct->do_dct[ci] = jpeg_fdct_islow; - method = JDCT_ISLOW; - break; -#endif -#ifdef DCT_IFAST_SUPPORTED - case JDCT_IFAST: - fdct->do_dct[ci] = jpeg_fdct_ifast; - method = JDCT_IFAST; - break; -#endif -#ifdef DCT_FLOAT_SUPPORTED - case JDCT_FLOAT: - fdct->do_float_dct[ci] = jpeg_fdct_float; - method = JDCT_FLOAT; - break; -#endif - default: - ERREXIT(cinfo, JERR_NOT_COMPILED); - break; - } - break; - default: - ERREXIT2(cinfo, JERR_BAD_DCTSIZE, - compptr->DCT_h_scaled_size, compptr->DCT_v_scaled_size); - break; - } - qtblno = compptr->quant_tbl_no; - /* Make sure specified quantization table is present */ - if (qtblno < 0 || qtblno >= NUM_QUANT_TBLS || - cinfo->quant_tbl_ptrs[qtblno] == NULL) - ERREXIT1(cinfo, JERR_NO_QUANT_TABLE, qtblno); - qtbl = cinfo->quant_tbl_ptrs[qtblno]; - /* Compute divisors for this quant table */ - /* We may do this more than once for same table, but it's not a big deal */ - switch (method) { -#ifdef PROVIDE_ISLOW_TABLES - case JDCT_ISLOW: - /* For LL&M IDCT method, divisors are equal to raw quantization - * coefficients multiplied by 8 (to counteract scaling). - */ - if (fdct->divisors[qtblno] == NULL) { - fdct->divisors[qtblno] = (DCTELEM *) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - DCTSIZE2 * SIZEOF(DCTELEM)); - } - dtbl = fdct->divisors[qtblno]; - for (i = 0; i < DCTSIZE2; i++) { - dtbl[i] = ((DCTELEM) qtbl->quantval[i]) << 3; - } - fdct->pub.forward_DCT[ci] = forward_DCT; - break; -#endif -#ifdef DCT_IFAST_SUPPORTED - case JDCT_IFAST: - { - /* For AA&N IDCT method, divisors are equal to quantization - * coefficients scaled by scalefactor[row]*scalefactor[col], where - * scalefactor[0] = 1 - * scalefactor[k] = cos(k*PI/16) * sqrt(2) for k=1..7 - * We apply a further scale factor of 8. - */ -#define CONST_BITS 14 - static const INT16 aanscales[DCTSIZE2] = { - /* precomputed values scaled up by 14 bits */ - 16384, 22725, 21407, 19266, 16384, 12873, 8867, 4520, - 22725, 31521, 29692, 26722, 22725, 17855, 12299, 6270, - 21407, 29692, 27969, 25172, 21407, 16819, 11585, 5906, - 19266, 26722, 25172, 22654, 19266, 15137, 10426, 5315, - 16384, 22725, 21407, 19266, 16384, 12873, 8867, 4520, - 12873, 17855, 16819, 15137, 12873, 10114, 6967, 3552, - 8867, 12299, 11585, 10426, 8867, 6967, 4799, 2446, - 4520, 6270, 5906, 5315, 4520, 3552, 2446, 1247 - }; - SHIFT_TEMPS - - if (fdct->divisors[qtblno] == NULL) { - fdct->divisors[qtblno] = (DCTELEM *) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - DCTSIZE2 * SIZEOF(DCTELEM)); - } - dtbl = fdct->divisors[qtblno]; - for (i = 0; i < DCTSIZE2; i++) { - dtbl[i] = (DCTELEM) - DESCALE(MULTIPLY16V16((INT32) qtbl->quantval[i], - (INT32) aanscales[i]), - CONST_BITS-3); - } - } - fdct->pub.forward_DCT[ci] = forward_DCT; - break; -#endif -#ifdef DCT_FLOAT_SUPPORTED - case JDCT_FLOAT: - { - /* For float AA&N IDCT method, divisors are equal to quantization - * coefficients scaled by scalefactor[row]*scalefactor[col], where - * scalefactor[0] = 1 - * scalefactor[k] = cos(k*PI/16) * sqrt(2) for k=1..7 - * We apply a further scale factor of 8. - * What's actually stored is 1/divisor so that the inner loop can - * use a multiplication rather than a division. - */ - FAST_FLOAT * fdtbl; - int row, col; - static const double aanscalefactor[DCTSIZE] = { - 1.0, 1.387039845, 1.306562965, 1.175875602, - 1.0, 0.785694958, 0.541196100, 0.275899379 - }; - - if (fdct->float_divisors[qtblno] == NULL) { - fdct->float_divisors[qtblno] = (FAST_FLOAT *) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - DCTSIZE2 * SIZEOF(FAST_FLOAT)); - } - fdtbl = fdct->float_divisors[qtblno]; - i = 0; - for (row = 0; row < DCTSIZE; row++) { - for (col = 0; col < DCTSIZE; col++) { - fdtbl[i] = (FAST_FLOAT) - (1.0 / (((double) qtbl->quantval[i] * - aanscalefactor[row] * aanscalefactor[col] * 8.0))); - i++; - } - } - } - fdct->pub.forward_DCT[ci] = forward_DCT_float; - break; -#endif - default: - ERREXIT(cinfo, JERR_NOT_COMPILED); - break; - } - } -} - - -/* - * Initialize FDCT manager. - */ - -GLOBAL(void) -jinit_forward_dct (j_compress_ptr cinfo) -{ - my_fdct_ptr fdct; - int i; - - fdct = (my_fdct_ptr) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - SIZEOF(my_fdct_controller)); - cinfo->fdct = (struct jpeg_forward_dct *) fdct; - fdct->pub.start_pass = start_pass_fdctmgr; - - /* Mark divisor tables unallocated */ - for (i = 0; i < NUM_QUANT_TBLS; i++) { - fdct->divisors[i] = NULL; -#ifdef DCT_FLOAT_SUPPORTED - fdct->float_divisors[i] = NULL; -#endif - } -} diff --git a/jpg/jchuff.c b/jpg/jchuff.c deleted file mode 100644 index 257d7aa..0000000 --- a/jpg/jchuff.c +++ /dev/null @@ -1,1576 +0,0 @@ -/* - * jchuff.c - * - * Copyright (C) 1991-1997, Thomas G. Lane. - * Modified 2006-2009 by Guido Vollbeding. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file contains Huffman entropy encoding routines. - * Both sequential and progressive modes are supported in this single module. - * - * Much of the complexity here has to do with supporting output suspension. - * If the data destination module demands suspension, we want to be able to - * back up to the start of the current MCU. To do this, we copy state - * variables into local working storage, and update them back to the - * permanent JPEG objects only upon successful completion of an MCU. - * - * We do not support output suspension for the progressive JPEG mode, since - * the library currently does not allow multiple-scan files to be written - * with output suspension. - */ - -#define JPEG_INTERNALS -#include "jinclude.h" -#include "jpeglib.h" - - -/* The legal range of a DCT coefficient is - * -1024 .. +1023 for 8-bit data; - * -16384 .. +16383 for 12-bit data. - * Hence the magnitude should always fit in 10 or 14 bits respectively. - */ - -#if BITS_IN_JSAMPLE == 8 -#define MAX_COEF_BITS 10 -#else -#define MAX_COEF_BITS 14 -#endif - -/* Derived data constructed for each Huffman table */ - -typedef struct { - unsigned int ehufco[256]; /* code for each symbol */ - char ehufsi[256]; /* length of code for each symbol */ - /* If no code has been allocated for a symbol S, ehufsi[S] contains 0 */ -} c_derived_tbl; - - -/* Expanded entropy encoder object for Huffman encoding. - * - * The savable_state subrecord contains fields that change within an MCU, - * but must not be updated permanently until we complete the MCU. - */ - -typedef struct { - INT32 put_buffer; /* current bit-accumulation buffer */ - int put_bits; /* # of bits now in it */ - int last_dc_val[MAX_COMPS_IN_SCAN]; /* last DC coef for each component */ -} savable_state; - -/* This macro is to work around compilers with missing or broken - * structure assignment. You'll need to fix this code if you have - * such a compiler and you change MAX_COMPS_IN_SCAN. - */ - -#ifndef NO_STRUCT_ASSIGN -#define ASSIGN_STATE(dest,src) ((dest) = (src)) -#else -#if MAX_COMPS_IN_SCAN == 4 -#define ASSIGN_STATE(dest,src) \ - ((dest).put_buffer = (src).put_buffer, \ - (dest).put_bits = (src).put_bits, \ - (dest).last_dc_val[0] = (src).last_dc_val[0], \ - (dest).last_dc_val[1] = (src).last_dc_val[1], \ - (dest).last_dc_val[2] = (src).last_dc_val[2], \ - (dest).last_dc_val[3] = (src).last_dc_val[3]) -#endif -#endif - - -typedef struct { - struct jpeg_entropy_encoder pub; /* public fields */ - - savable_state saved; /* Bit buffer & DC state at start of MCU */ - - /* These fields are NOT loaded into local working state. */ - unsigned int restarts_to_go; /* MCUs left in this restart interval */ - int next_restart_num; /* next restart number to write (0-7) */ - - /* Pointers to derived tables (these workspaces have image lifespan) */ - c_derived_tbl * dc_derived_tbls[NUM_HUFF_TBLS]; - c_derived_tbl * ac_derived_tbls[NUM_HUFF_TBLS]; - - /* Statistics tables for optimization */ - long * dc_count_ptrs[NUM_HUFF_TBLS]; - long * ac_count_ptrs[NUM_HUFF_TBLS]; - - /* Following fields used only in progressive mode */ - - /* Mode flag: TRUE for optimization, FALSE for actual data output */ - boolean gather_statistics; - - /* next_output_byte/free_in_buffer are local copies of cinfo->dest fields. - */ - JOCTET * next_output_byte; /* => next byte to write in buffer */ - size_t free_in_buffer; /* # of byte spaces remaining in buffer */ - j_compress_ptr cinfo; /* link to cinfo (needed for dump_buffer) */ - - /* Coding status for AC components */ - int ac_tbl_no; /* the table number of the single component */ - unsigned int EOBRUN; /* run length of EOBs */ - unsigned int BE; /* # of buffered correction bits before MCU */ - char * bit_buffer; /* buffer for correction bits (1 per char) */ - /* packing correction bits tightly would save some space but cost time... */ -} huff_entropy_encoder; - -typedef huff_entropy_encoder * huff_entropy_ptr; - -/* Working state while writing an MCU (sequential mode). - * This struct contains all the fields that are needed by subroutines. - */ - -typedef struct { - JOCTET * next_output_byte; /* => next byte to write in buffer */ - size_t free_in_buffer; /* # of byte spaces remaining in buffer */ - savable_state cur; /* Current bit buffer & DC state */ - j_compress_ptr cinfo; /* dump_buffer needs access to this */ -} working_state; - -/* MAX_CORR_BITS is the number of bits the AC refinement correction-bit - * buffer can hold. Larger sizes may slightly improve compression, but - * 1000 is already well into the realm of overkill. - * The minimum safe size is 64 bits. - */ - -#define MAX_CORR_BITS 1000 /* Max # of correction bits I can buffer */ - -/* IRIGHT_SHIFT is like RIGHT_SHIFT, but works on int rather than INT32. - * We assume that int right shift is unsigned if INT32 right shift is, - * which should be safe. - */ - -#ifdef RIGHT_SHIFT_IS_UNSIGNED -#define ISHIFT_TEMPS int ishift_temp; -#define IRIGHT_SHIFT(x,shft) \ - ((ishift_temp = (x)) < 0 ? \ - (ishift_temp >> (shft)) | ((~0) << (16-(shft))) : \ - (ishift_temp >> (shft))) -#else -#define ISHIFT_TEMPS -#define IRIGHT_SHIFT(x,shft) ((x) >> (shft)) -#endif - - -/* - * Compute the derived values for a Huffman table. - * This routine also performs some validation checks on the table. - */ - -LOCAL(void) -jpeg_make_c_derived_tbl (j_compress_ptr cinfo, boolean isDC, int tblno, - c_derived_tbl ** pdtbl) -{ - JHUFF_TBL *htbl; - c_derived_tbl *dtbl; - int p, i, l, lastp, si, maxsymbol; - char huffsize[257]; - unsigned int huffcode[257]; - unsigned int code; - - /* Note that huffsize[] and huffcode[] are filled in code-length order, - * paralleling the order of the symbols themselves in htbl->huffval[]. - */ - - /* Find the input Huffman table */ - if (tblno < 0 || tblno >= NUM_HUFF_TBLS) - ERREXIT1(cinfo, JERR_NO_HUFF_TABLE, tblno); - htbl = - isDC ? cinfo->dc_huff_tbl_ptrs[tblno] : cinfo->ac_huff_tbl_ptrs[tblno]; - if (htbl == NULL) - ERREXIT1(cinfo, JERR_NO_HUFF_TABLE, tblno); - - /* Allocate a workspace if we haven't already done so. */ - if (*pdtbl == NULL) - *pdtbl = (c_derived_tbl *) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - SIZEOF(c_derived_tbl)); - dtbl = *pdtbl; - - /* Figure C.1: make table of Huffman code length for each symbol */ - - p = 0; - for (l = 1; l <= 16; l++) { - i = (int) htbl->bits[l]; - if (i < 0 || p + i > 256) /* protect against table overrun */ - ERREXIT(cinfo, JERR_BAD_HUFF_TABLE); - while (i--) - huffsize[p++] = (char) l; - } - huffsize[p] = 0; - lastp = p; - - /* Figure C.2: generate the codes themselves */ - /* We also validate that the counts represent a legal Huffman code tree. */ - - code = 0; - si = huffsize[0]; - p = 0; - while (huffsize[p]) { - while (((int) huffsize[p]) == si) { - huffcode[p++] = code; - code++; - } - /* code is now 1 more than the last code used for codelength si; but - * it must still fit in si bits, since no code is allowed to be all ones. - */ - if (((INT32) code) >= (((INT32) 1) << si)) - ERREXIT(cinfo, JERR_BAD_HUFF_TABLE); - code <<= 1; - si++; - } - - /* Figure C.3: generate encoding tables */ - /* These are code and size indexed by symbol value */ - - /* Set all codeless symbols to have code length 0; - * this lets us detect duplicate VAL entries here, and later - * allows emit_bits to detect any attempt to emit such symbols. - */ - MEMZERO(dtbl->ehufsi, SIZEOF(dtbl->ehufsi)); - - /* This is also a convenient place to check for out-of-range - * and duplicated VAL entries. We allow 0..255 for AC symbols - * but only 0..15 for DC. (We could constrain them further - * based on data depth and mode, but this seems enough.) - */ - maxsymbol = isDC ? 15 : 255; - - for (p = 0; p < lastp; p++) { - i = htbl->huffval[p]; - if (i < 0 || i > maxsymbol || dtbl->ehufsi[i]) - ERREXIT(cinfo, JERR_BAD_HUFF_TABLE); - dtbl->ehufco[i] = huffcode[p]; - dtbl->ehufsi[i] = huffsize[p]; - } -} - - -/* Outputting bytes to the file. - * NB: these must be called only when actually outputting, - * that is, entropy->gather_statistics == FALSE. - */ - -/* Emit a byte, taking 'action' if must suspend. */ -#define emit_byte_s(state,val,action) \ - { *(state)->next_output_byte++ = (JOCTET) (val); \ - if (--(state)->free_in_buffer == 0) \ - if (! dump_buffer_s(state)) \ - { action; } } - -/* Emit a byte */ -#define emit_byte_e(entropy,val) \ - { *(entropy)->next_output_byte++ = (JOCTET) (val); \ - if (--(entropy)->free_in_buffer == 0) \ - dump_buffer_e(entropy); } - - -LOCAL(boolean) -dump_buffer_s (working_state * state) -/* Empty the output buffer; return TRUE if successful, FALSE if must suspend */ -{ - struct jpeg_destination_mgr * dest = state->cinfo->dest; - - if (! (*dest->empty_output_buffer) (state->cinfo)) - return FALSE; - /* After a successful buffer dump, must reset buffer pointers */ - state->next_output_byte = dest->next_output_byte; - state->free_in_buffer = dest->free_in_buffer; - return TRUE; -} - - -LOCAL(void) -dump_buffer_e (huff_entropy_ptr entropy) -/* Empty the output buffer; we do not support suspension in this case. */ -{ - struct jpeg_destination_mgr * dest = entropy->cinfo->dest; - - if (! (*dest->empty_output_buffer) (entropy->cinfo)) - ERREXIT(entropy->cinfo, JERR_CANT_SUSPEND); - /* After a successful buffer dump, must reset buffer pointers */ - entropy->next_output_byte = dest->next_output_byte; - entropy->free_in_buffer = dest->free_in_buffer; -} - - -/* Outputting bits to the file */ - -/* Only the right 24 bits of put_buffer are used; the valid bits are - * left-justified in this part. At most 16 bits can be passed to emit_bits - * in one call, and we never retain more than 7 bits in put_buffer - * between calls, so 24 bits are sufficient. - */ - -INLINE -LOCAL(boolean) -emit_bits_s (working_state * state, unsigned int code, int size) -/* Emit some bits; return TRUE if successful, FALSE if must suspend */ -{ - /* This routine is heavily used, so it's worth coding tightly. */ - register INT32 put_buffer = (INT32) code; - register int put_bits = state->cur.put_bits; - - /* if size is 0, caller used an invalid Huffman table entry */ - if (size == 0) - ERREXIT(state->cinfo, JERR_HUFF_MISSING_CODE); - - put_buffer &= (((INT32) 1)<cur.put_buffer; /* and merge with old buffer contents */ - - while (put_bits >= 8) { - int c = (int) ((put_buffer >> 16) & 0xFF); - - emit_byte_s(state, c, return FALSE); - if (c == 0xFF) { /* need to stuff a zero byte? */ - emit_byte_s(state, 0, return FALSE); - } - put_buffer <<= 8; - put_bits -= 8; - } - - state->cur.put_buffer = put_buffer; /* update state variables */ - state->cur.put_bits = put_bits; - - return TRUE; -} - - -INLINE -LOCAL(void) -emit_bits_e (huff_entropy_ptr entropy, unsigned int code, int size) -/* Emit some bits, unless we are in gather mode */ -{ - /* This routine is heavily used, so it's worth coding tightly. */ - register INT32 put_buffer = (INT32) code; - register int put_bits = entropy->saved.put_bits; - - /* if size is 0, caller used an invalid Huffman table entry */ - if (size == 0) - ERREXIT(entropy->cinfo, JERR_HUFF_MISSING_CODE); - - if (entropy->gather_statistics) - return; /* do nothing if we're only getting stats */ - - put_buffer &= (((INT32) 1)<saved.put_buffer; - - while (put_bits >= 8) { - int c = (int) ((put_buffer >> 16) & 0xFF); - - emit_byte_e(entropy, c); - if (c == 0xFF) { /* need to stuff a zero byte? */ - emit_byte_e(entropy, 0); - } - put_buffer <<= 8; - put_bits -= 8; - } - - entropy->saved.put_buffer = put_buffer; /* update variables */ - entropy->saved.put_bits = put_bits; -} - - -LOCAL(boolean) -flush_bits_s (working_state * state) -{ - if (! emit_bits_s(state, 0x7F, 7)) /* fill any partial byte with ones */ - return FALSE; - state->cur.put_buffer = 0; /* and reset bit-buffer to empty */ - state->cur.put_bits = 0; - return TRUE; -} - - -LOCAL(void) -flush_bits_e (huff_entropy_ptr entropy) -{ - emit_bits_e(entropy, 0x7F, 7); /* fill any partial byte with ones */ - entropy->saved.put_buffer = 0; /* and reset bit-buffer to empty */ - entropy->saved.put_bits = 0; -} - - -/* - * Emit (or just count) a Huffman symbol. - */ - -INLINE -LOCAL(void) -emit_dc_symbol (huff_entropy_ptr entropy, int tbl_no, int symbol) -{ - if (entropy->gather_statistics) - entropy->dc_count_ptrs[tbl_no][symbol]++; - else { - c_derived_tbl * tbl = entropy->dc_derived_tbls[tbl_no]; - emit_bits_e(entropy, tbl->ehufco[symbol], tbl->ehufsi[symbol]); - } -} - - -INLINE -LOCAL(void) -emit_ac_symbol (huff_entropy_ptr entropy, int tbl_no, int symbol) -{ - if (entropy->gather_statistics) - entropy->ac_count_ptrs[tbl_no][symbol]++; - else { - c_derived_tbl * tbl = entropy->ac_derived_tbls[tbl_no]; - emit_bits_e(entropy, tbl->ehufco[symbol], tbl->ehufsi[symbol]); - } -} - - -/* - * Emit bits from a correction bit buffer. - */ - -LOCAL(void) -emit_buffered_bits (huff_entropy_ptr entropy, char * bufstart, - unsigned int nbits) -{ - if (entropy->gather_statistics) - return; /* no real work */ - - while (nbits > 0) { - emit_bits_e(entropy, (unsigned int) (*bufstart), 1); - bufstart++; - nbits--; - } -} - - -/* - * Emit any pending EOBRUN symbol. - */ - -LOCAL(void) -emit_eobrun (huff_entropy_ptr entropy) -{ - register int temp, nbits; - - if (entropy->EOBRUN > 0) { /* if there is any pending EOBRUN */ - temp = entropy->EOBRUN; - nbits = 0; - while ((temp >>= 1)) - nbits++; - /* safety check: shouldn't happen given limited correction-bit buffer */ - if (nbits > 14) - ERREXIT(entropy->cinfo, JERR_HUFF_MISSING_CODE); - - emit_ac_symbol(entropy, entropy->ac_tbl_no, nbits << 4); - if (nbits) - emit_bits_e(entropy, entropy->EOBRUN, nbits); - - entropy->EOBRUN = 0; - - /* Emit any buffered correction bits */ - emit_buffered_bits(entropy, entropy->bit_buffer, entropy->BE); - entropy->BE = 0; - } -} - - -/* - * Emit a restart marker & resynchronize predictions. - */ - -LOCAL(boolean) -emit_restart_s (working_state * state, int restart_num) -{ - int ci; - - if (! flush_bits_s(state)) - return FALSE; - - emit_byte_s(state, 0xFF, return FALSE); - emit_byte_s(state, JPEG_RST0 + restart_num, return FALSE); - - /* Re-initialize DC predictions to 0 */ - for (ci = 0; ci < state->cinfo->comps_in_scan; ci++) - state->cur.last_dc_val[ci] = 0; - - /* The restart counter is not updated until we successfully write the MCU. */ - - return TRUE; -} - - -LOCAL(void) -emit_restart_e (huff_entropy_ptr entropy, int restart_num) -{ - int ci; - - emit_eobrun(entropy); - - if (! entropy->gather_statistics) { - flush_bits_e(entropy); - emit_byte_e(entropy, 0xFF); - emit_byte_e(entropy, JPEG_RST0 + restart_num); - } - - if (entropy->cinfo->Ss == 0) { - /* Re-initialize DC predictions to 0 */ - for (ci = 0; ci < entropy->cinfo->comps_in_scan; ci++) - entropy->saved.last_dc_val[ci] = 0; - } else { - /* Re-initialize all AC-related fields to 0 */ - entropy->EOBRUN = 0; - entropy->BE = 0; - } -} - - -/* - * MCU encoding for DC initial scan (either spectral selection, - * or first pass of successive approximation). - */ - -METHODDEF(boolean) -encode_mcu_DC_first (j_compress_ptr cinfo, JBLOCKROW *MCU_data) -{ - huff_entropy_ptr entropy = (huff_entropy_ptr) cinfo->entropy; - register int temp, temp2; - register int nbits; - int blkn, ci; - int Al = cinfo->Al; - JBLOCKROW block; - jpeg_component_info * compptr; - ISHIFT_TEMPS - - entropy->next_output_byte = cinfo->dest->next_output_byte; - entropy->free_in_buffer = cinfo->dest->free_in_buffer; - - /* Emit restart marker if needed */ - if (cinfo->restart_interval) - if (entropy->restarts_to_go == 0) - emit_restart_e(entropy, entropy->next_restart_num); - - /* Encode the MCU data blocks */ - for (blkn = 0; blkn < cinfo->blocks_in_MCU; blkn++) { - block = MCU_data[blkn]; - ci = cinfo->MCU_membership[blkn]; - compptr = cinfo->cur_comp_info[ci]; - - /* Compute the DC value after the required point transform by Al. - * This is simply an arithmetic right shift. - */ - temp2 = IRIGHT_SHIFT((int) ((*block)[0]), Al); - - /* DC differences are figured on the point-transformed values. */ - temp = temp2 - entropy->saved.last_dc_val[ci]; - entropy->saved.last_dc_val[ci] = temp2; - - /* Encode the DC coefficient difference per section G.1.2.1 */ - temp2 = temp; - if (temp < 0) { - temp = -temp; /* temp is abs value of input */ - /* For a negative input, want temp2 = bitwise complement of abs(input) */ - /* This code assumes we are on a two's complement machine */ - temp2--; - } - - /* Find the number of bits needed for the magnitude of the coefficient */ - nbits = 0; - while (temp) { - nbits++; - temp >>= 1; - } - /* Check for out-of-range coefficient values. - * Since we're encoding a difference, the range limit is twice as much. - */ - if (nbits > MAX_COEF_BITS+1) - ERREXIT(cinfo, JERR_BAD_DCT_COEF); - - /* Count/emit the Huffman-coded symbol for the number of bits */ - emit_dc_symbol(entropy, compptr->dc_tbl_no, nbits); - - /* Emit that number of bits of the value, if positive, */ - /* or the complement of its magnitude, if negative. */ - if (nbits) /* emit_bits rejects calls with size 0 */ - emit_bits_e(entropy, (unsigned int) temp2, nbits); - } - - cinfo->dest->next_output_byte = entropy->next_output_byte; - cinfo->dest->free_in_buffer = entropy->free_in_buffer; - - /* Update restart-interval state too */ - if (cinfo->restart_interval) { - if (entropy->restarts_to_go == 0) { - entropy->restarts_to_go = cinfo->restart_interval; - entropy->next_restart_num++; - entropy->next_restart_num &= 7; - } - entropy->restarts_to_go--; - } - - return TRUE; -} - - -/* - * MCU encoding for AC initial scan (either spectral selection, - * or first pass of successive approximation). - */ - -METHODDEF(boolean) -encode_mcu_AC_first (j_compress_ptr cinfo, JBLOCKROW *MCU_data) -{ - huff_entropy_ptr entropy = (huff_entropy_ptr) cinfo->entropy; - register int temp, temp2; - register int nbits; - register int r, k; - int Se, Al; - const int * natural_order; - JBLOCKROW block; - - entropy->next_output_byte = cinfo->dest->next_output_byte; - entropy->free_in_buffer = cinfo->dest->free_in_buffer; - - /* Emit restart marker if needed */ - if (cinfo->restart_interval) - if (entropy->restarts_to_go == 0) - emit_restart_e(entropy, entropy->next_restart_num); - - Se = cinfo->Se; - Al = cinfo->Al; - natural_order = cinfo->natural_order; - - /* Encode the MCU data block */ - block = MCU_data[0]; - - /* Encode the AC coefficients per section G.1.2.2, fig. G.3 */ - - r = 0; /* r = run length of zeros */ - - for (k = cinfo->Ss; k <= Se; k++) { - if ((temp = (*block)[natural_order[k]]) == 0) { - r++; - continue; - } - /* We must apply the point transform by Al. For AC coefficients this - * is an integer division with rounding towards 0. To do this portably - * in C, we shift after obtaining the absolute value; so the code is - * interwoven with finding the abs value (temp) and output bits (temp2). - */ - if (temp < 0) { - temp = -temp; /* temp is abs value of input */ - temp >>= Al; /* apply the point transform */ - /* For a negative coef, want temp2 = bitwise complement of abs(coef) */ - temp2 = ~temp; - } else { - temp >>= Al; /* apply the point transform */ - temp2 = temp; - } - /* Watch out for case that nonzero coef is zero after point transform */ - if (temp == 0) { - r++; - continue; - } - - /* Emit any pending EOBRUN */ - if (entropy->EOBRUN > 0) - emit_eobrun(entropy); - /* if run length > 15, must emit special run-length-16 codes (0xF0) */ - while (r > 15) { - emit_ac_symbol(entropy, entropy->ac_tbl_no, 0xF0); - r -= 16; - } - - /* Find the number of bits needed for the magnitude of the coefficient */ - nbits = 1; /* there must be at least one 1 bit */ - while ((temp >>= 1)) - nbits++; - /* Check for out-of-range coefficient values */ - if (nbits > MAX_COEF_BITS) - ERREXIT(cinfo, JERR_BAD_DCT_COEF); - - /* Count/emit Huffman symbol for run length / number of bits */ - emit_ac_symbol(entropy, entropy->ac_tbl_no, (r << 4) + nbits); - - /* Emit that number of bits of the value, if positive, */ - /* or the complement of its magnitude, if negative. */ - emit_bits_e(entropy, (unsigned int) temp2, nbits); - - r = 0; /* reset zero run length */ - } - - if (r > 0) { /* If there are trailing zeroes, */ - entropy->EOBRUN++; /* count an EOB */ - if (entropy->EOBRUN == 0x7FFF) - emit_eobrun(entropy); /* force it out to avoid overflow */ - } - - cinfo->dest->next_output_byte = entropy->next_output_byte; - cinfo->dest->free_in_buffer = entropy->free_in_buffer; - - /* Update restart-interval state too */ - if (cinfo->restart_interval) { - if (entropy->restarts_to_go == 0) { - entropy->restarts_to_go = cinfo->restart_interval; - entropy->next_restart_num++; - entropy->next_restart_num &= 7; - } - entropy->restarts_to_go--; - } - - return TRUE; -} - - -/* - * MCU encoding for DC successive approximation refinement scan. - * Note: we assume such scans can be multi-component, although the spec - * is not very clear on the point. - */ - -METHODDEF(boolean) -encode_mcu_DC_refine (j_compress_ptr cinfo, JBLOCKROW *MCU_data) -{ - huff_entropy_ptr entropy = (huff_entropy_ptr) cinfo->entropy; - register int temp; - int blkn; - int Al = cinfo->Al; - JBLOCKROW block; - - entropy->next_output_byte = cinfo->dest->next_output_byte; - entropy->free_in_buffer = cinfo->dest->free_in_buffer; - - /* Emit restart marker if needed */ - if (cinfo->restart_interval) - if (entropy->restarts_to_go == 0) - emit_restart_e(entropy, entropy->next_restart_num); - - /* Encode the MCU data blocks */ - for (blkn = 0; blkn < cinfo->blocks_in_MCU; blkn++) { - block = MCU_data[blkn]; - - /* We simply emit the Al'th bit of the DC coefficient value. */ - temp = (*block)[0]; - emit_bits_e(entropy, (unsigned int) (temp >> Al), 1); - } - - cinfo->dest->next_output_byte = entropy->next_output_byte; - cinfo->dest->free_in_buffer = entropy->free_in_buffer; - - /* Update restart-interval state too */ - if (cinfo->restart_interval) { - if (entropy->restarts_to_go == 0) { - entropy->restarts_to_go = cinfo->restart_interval; - entropy->next_restart_num++; - entropy->next_restart_num &= 7; - } - entropy->restarts_to_go--; - } - - return TRUE; -} - - -/* - * MCU encoding for AC successive approximation refinement scan. - */ - -METHODDEF(boolean) -encode_mcu_AC_refine (j_compress_ptr cinfo, JBLOCKROW *MCU_data) -{ - huff_entropy_ptr entropy = (huff_entropy_ptr) cinfo->entropy; - register int temp; - register int r, k; - int EOB; - char *BR_buffer; - unsigned int BR; - int Se, Al; - const int * natural_order; - JBLOCKROW block; - int absvalues[DCTSIZE2]; - - entropy->next_output_byte = cinfo->dest->next_output_byte; - entropy->free_in_buffer = cinfo->dest->free_in_buffer; - - /* Emit restart marker if needed */ - if (cinfo->restart_interval) - if (entropy->restarts_to_go == 0) - emit_restart_e(entropy, entropy->next_restart_num); - - Se = cinfo->Se; - Al = cinfo->Al; - natural_order = cinfo->natural_order; - - /* Encode the MCU data block */ - block = MCU_data[0]; - - /* It is convenient to make a pre-pass to determine the transformed - * coefficients' absolute values and the EOB position. - */ - EOB = 0; - for (k = cinfo->Ss; k <= Se; k++) { - temp = (*block)[natural_order[k]]; - /* We must apply the point transform by Al. For AC coefficients this - * is an integer division with rounding towards 0. To do this portably - * in C, we shift after obtaining the absolute value. - */ - if (temp < 0) - temp = -temp; /* temp is abs value of input */ - temp >>= Al; /* apply the point transform */ - absvalues[k] = temp; /* save abs value for main pass */ - if (temp == 1) - EOB = k; /* EOB = index of last newly-nonzero coef */ - } - - /* Encode the AC coefficients per section G.1.2.3, fig. G.7 */ - - r = 0; /* r = run length of zeros */ - BR = 0; /* BR = count of buffered bits added now */ - BR_buffer = entropy->bit_buffer + entropy->BE; /* Append bits to buffer */ - - for (k = cinfo->Ss; k <= Se; k++) { - if ((temp = absvalues[k]) == 0) { - r++; - continue; - } - - /* Emit any required ZRLs, but not if they can be folded into EOB */ - while (r > 15 && k <= EOB) { - /* emit any pending EOBRUN and the BE correction bits */ - emit_eobrun(entropy); - /* Emit ZRL */ - emit_ac_symbol(entropy, entropy->ac_tbl_no, 0xF0); - r -= 16; - /* Emit buffered correction bits that must be associated with ZRL */ - emit_buffered_bits(entropy, BR_buffer, BR); - BR_buffer = entropy->bit_buffer; /* BE bits are gone now */ - BR = 0; - } - - /* If the coef was previously nonzero, it only needs a correction bit. - * NOTE: a straight translation of the spec's figure G.7 would suggest - * that we also need to test r > 15. But if r > 15, we can only get here - * if k > EOB, which implies that this coefficient is not 1. - */ - if (temp > 1) { - /* The correction bit is the next bit of the absolute value. */ - BR_buffer[BR++] = (char) (temp & 1); - continue; - } - - /* Emit any pending EOBRUN and the BE correction bits */ - emit_eobrun(entropy); - - /* Count/emit Huffman symbol for run length / number of bits */ - emit_ac_symbol(entropy, entropy->ac_tbl_no, (r << 4) + 1); - - /* Emit output bit for newly-nonzero coef */ - temp = ((*block)[natural_order[k]] < 0) ? 0 : 1; - emit_bits_e(entropy, (unsigned int) temp, 1); - - /* Emit buffered correction bits that must be associated with this code */ - emit_buffered_bits(entropy, BR_buffer, BR); - BR_buffer = entropy->bit_buffer; /* BE bits are gone now */ - BR = 0; - r = 0; /* reset zero run length */ - } - - if (r > 0 || BR > 0) { /* If there are trailing zeroes, */ - entropy->EOBRUN++; /* count an EOB */ - entropy->BE += BR; /* concat my correction bits to older ones */ - /* We force out the EOB if we risk either: - * 1. overflow of the EOB counter; - * 2. overflow of the correction bit buffer during the next MCU. - */ - if (entropy->EOBRUN == 0x7FFF || entropy->BE > (MAX_CORR_BITS-DCTSIZE2+1)) - emit_eobrun(entropy); - } - - cinfo->dest->next_output_byte = entropy->next_output_byte; - cinfo->dest->free_in_buffer = entropy->free_in_buffer; - - /* Update restart-interval state too */ - if (cinfo->restart_interval) { - if (entropy->restarts_to_go == 0) { - entropy->restarts_to_go = cinfo->restart_interval; - entropy->next_restart_num++; - entropy->next_restart_num &= 7; - } - entropy->restarts_to_go--; - } - - return TRUE; -} - - -/* Encode a single block's worth of coefficients */ - -LOCAL(boolean) -encode_one_block (working_state * state, JCOEFPTR block, int last_dc_val, - c_derived_tbl *dctbl, c_derived_tbl *actbl) -{ - register int temp, temp2; - register int nbits; - register int k, r, i; - int Se = state->cinfo->lim_Se; - const int * natural_order = state->cinfo->natural_order; - - /* Encode the DC coefficient difference per section F.1.2.1 */ - - temp = temp2 = block[0] - last_dc_val; - - if (temp < 0) { - temp = -temp; /* temp is abs value of input */ - /* For a negative input, want temp2 = bitwise complement of abs(input) */ - /* This code assumes we are on a two's complement machine */ - temp2--; - } - - /* Find the number of bits needed for the magnitude of the coefficient */ - nbits = 0; - while (temp) { - nbits++; - temp >>= 1; - } - /* Check for out-of-range coefficient values. - * Since we're encoding a difference, the range limit is twice as much. - */ - if (nbits > MAX_COEF_BITS+1) - ERREXIT(state->cinfo, JERR_BAD_DCT_COEF); - - /* Emit the Huffman-coded symbol for the number of bits */ - if (! emit_bits_s(state, dctbl->ehufco[nbits], dctbl->ehufsi[nbits])) - return FALSE; - - /* Emit that number of bits of the value, if positive, */ - /* or the complement of its magnitude, if negative. */ - if (nbits) /* emit_bits rejects calls with size 0 */ - if (! emit_bits_s(state, (unsigned int) temp2, nbits)) - return FALSE; - - /* Encode the AC coefficients per section F.1.2.2 */ - - r = 0; /* r = run length of zeros */ - - for (k = 1; k <= Se; k++) { - if ((temp = block[natural_order[k]]) == 0) { - r++; - } else { - /* if run length > 15, must emit special run-length-16 codes (0xF0) */ - while (r > 15) { - if (! emit_bits_s(state, actbl->ehufco[0xF0], actbl->ehufsi[0xF0])) - return FALSE; - r -= 16; - } - - temp2 = temp; - if (temp < 0) { - temp = -temp; /* temp is abs value of input */ - /* This code assumes we are on a two's complement machine */ - temp2--; - } - - /* Find the number of bits needed for the magnitude of the coefficient */ - nbits = 1; /* there must be at least one 1 bit */ - while ((temp >>= 1)) - nbits++; - /* Check for out-of-range coefficient values */ - if (nbits > MAX_COEF_BITS) - ERREXIT(state->cinfo, JERR_BAD_DCT_COEF); - - /* Emit Huffman symbol for run length / number of bits */ - i = (r << 4) + nbits; - if (! emit_bits_s(state, actbl->ehufco[i], actbl->ehufsi[i])) - return FALSE; - - /* Emit that number of bits of the value, if positive, */ - /* or the complement of its magnitude, if negative. */ - if (! emit_bits_s(state, (unsigned int) temp2, nbits)) - return FALSE; - - r = 0; - } - } - - /* If the last coef(s) were zero, emit an end-of-block code */ - if (r > 0) - if (! emit_bits_s(state, actbl->ehufco[0], actbl->ehufsi[0])) - return FALSE; - - return TRUE; -} - - -/* - * Encode and output one MCU's worth of Huffman-compressed coefficients. - */ - -METHODDEF(boolean) -encode_mcu_huff (j_compress_ptr cinfo, JBLOCKROW *MCU_data) -{ - huff_entropy_ptr entropy = (huff_entropy_ptr) cinfo->entropy; - working_state state; - int blkn, ci; - jpeg_component_info * compptr; - - /* Load up working state */ - state.next_output_byte = cinfo->dest->next_output_byte; - state.free_in_buffer = cinfo->dest->free_in_buffer; - ASSIGN_STATE(state.cur, entropy->saved); - state.cinfo = cinfo; - - /* Emit restart marker if needed */ - if (cinfo->restart_interval) { - if (entropy->restarts_to_go == 0) - if (! emit_restart_s(&state, entropy->next_restart_num)) - return FALSE; - } - - /* Encode the MCU data blocks */ - for (blkn = 0; blkn < cinfo->blocks_in_MCU; blkn++) { - ci = cinfo->MCU_membership[blkn]; - compptr = cinfo->cur_comp_info[ci]; - if (! encode_one_block(&state, - MCU_data[blkn][0], state.cur.last_dc_val[ci], - entropy->dc_derived_tbls[compptr->dc_tbl_no], - entropy->ac_derived_tbls[compptr->ac_tbl_no])) - return FALSE; - /* Update last_dc_val */ - state.cur.last_dc_val[ci] = MCU_data[blkn][0][0]; - } - - /* Completed MCU, so update state */ - cinfo->dest->next_output_byte = state.next_output_byte; - cinfo->dest->free_in_buffer = state.free_in_buffer; - ASSIGN_STATE(entropy->saved, state.cur); - - /* Update restart-interval state too */ - if (cinfo->restart_interval) { - if (entropy->restarts_to_go == 0) { - entropy->restarts_to_go = cinfo->restart_interval; - entropy->next_restart_num++; - entropy->next_restart_num &= 7; - } - entropy->restarts_to_go--; - } - - return TRUE; -} - - -/* - * Finish up at the end of a Huffman-compressed scan. - */ - -METHODDEF(void) -finish_pass_huff (j_compress_ptr cinfo) -{ - huff_entropy_ptr entropy = (huff_entropy_ptr) cinfo->entropy; - working_state state; - - if (cinfo->progressive_mode) { - entropy->next_output_byte = cinfo->dest->next_output_byte; - entropy->free_in_buffer = cinfo->dest->free_in_buffer; - - /* Flush out any buffered data */ - emit_eobrun(entropy); - flush_bits_e(entropy); - - cinfo->dest->next_output_byte = entropy->next_output_byte; - cinfo->dest->free_in_buffer = entropy->free_in_buffer; - } else { - /* Load up working state ... flush_bits needs it */ - state.next_output_byte = cinfo->dest->next_output_byte; - state.free_in_buffer = cinfo->dest->free_in_buffer; - ASSIGN_STATE(state.cur, entropy->saved); - state.cinfo = cinfo; - - /* Flush out the last data */ - if (! flush_bits_s(&state)) - ERREXIT(cinfo, JERR_CANT_SUSPEND); - - /* Update state */ - cinfo->dest->next_output_byte = state.next_output_byte; - cinfo->dest->free_in_buffer = state.free_in_buffer; - ASSIGN_STATE(entropy->saved, state.cur); - } -} - - -/* - * Huffman coding optimization. - * - * We first scan the supplied data and count the number of uses of each symbol - * that is to be Huffman-coded. (This process MUST agree with the code above.) - * Then we build a Huffman coding tree for the observed counts. - * Symbols which are not needed at all for the particular image are not - * assigned any code, which saves space in the DHT marker as well as in - * the compressed data. - */ - - -/* Process a single block's worth of coefficients */ - -LOCAL(void) -htest_one_block (j_compress_ptr cinfo, JCOEFPTR block, int last_dc_val, - long dc_counts[], long ac_counts[]) -{ - register int temp; - register int nbits; - register int k, r; - int Se = cinfo->lim_Se; - const int * natural_order = cinfo->natural_order; - - /* Encode the DC coefficient difference per section F.1.2.1 */ - - temp = block[0] - last_dc_val; - if (temp < 0) - temp = -temp; - - /* Find the number of bits needed for the magnitude of the coefficient */ - nbits = 0; - while (temp) { - nbits++; - temp >>= 1; - } - /* Check for out-of-range coefficient values. - * Since we're encoding a difference, the range limit is twice as much. - */ - if (nbits > MAX_COEF_BITS+1) - ERREXIT(cinfo, JERR_BAD_DCT_COEF); - - /* Count the Huffman symbol for the number of bits */ - dc_counts[nbits]++; - - /* Encode the AC coefficients per section F.1.2.2 */ - - r = 0; /* r = run length of zeros */ - - for (k = 1; k <= Se; k++) { - if ((temp = block[natural_order[k]]) == 0) { - r++; - } else { - /* if run length > 15, must emit special run-length-16 codes (0xF0) */ - while (r > 15) { - ac_counts[0xF0]++; - r -= 16; - } - - /* Find the number of bits needed for the magnitude of the coefficient */ - if (temp < 0) - temp = -temp; - - /* Find the number of bits needed for the magnitude of the coefficient */ - nbits = 1; /* there must be at least one 1 bit */ - while ((temp >>= 1)) - nbits++; - /* Check for out-of-range coefficient values */ - if (nbits > MAX_COEF_BITS) - ERREXIT(cinfo, JERR_BAD_DCT_COEF); - - /* Count Huffman symbol for run length / number of bits */ - ac_counts[(r << 4) + nbits]++; - - r = 0; - } - } - - /* If the last coef(s) were zero, emit an end-of-block code */ - if (r > 0) - ac_counts[0]++; -} - - -/* - * Trial-encode one MCU's worth of Huffman-compressed coefficients. - * No data is actually output, so no suspension return is possible. - */ - -METHODDEF(boolean) -encode_mcu_gather (j_compress_ptr cinfo, JBLOCKROW *MCU_data) -{ - huff_entropy_ptr entropy = (huff_entropy_ptr) cinfo->entropy; - int blkn, ci; - jpeg_component_info * compptr; - - /* Take care of restart intervals if needed */ - if (cinfo->restart_interval) { - if (entropy->restarts_to_go == 0) { - /* Re-initialize DC predictions to 0 */ - for (ci = 0; ci < cinfo->comps_in_scan; ci++) - entropy->saved.last_dc_val[ci] = 0; - /* Update restart state */ - entropy->restarts_to_go = cinfo->restart_interval; - } - entropy->restarts_to_go--; - } - - for (blkn = 0; blkn < cinfo->blocks_in_MCU; blkn++) { - ci = cinfo->MCU_membership[blkn]; - compptr = cinfo->cur_comp_info[ci]; - htest_one_block(cinfo, MCU_data[blkn][0], entropy->saved.last_dc_val[ci], - entropy->dc_count_ptrs[compptr->dc_tbl_no], - entropy->ac_count_ptrs[compptr->ac_tbl_no]); - entropy->saved.last_dc_val[ci] = MCU_data[blkn][0][0]; - } - - return TRUE; -} - - -/* - * Generate the best Huffman code table for the given counts, fill htbl. - * - * The JPEG standard requires that no symbol be assigned a codeword of all - * one bits (so that padding bits added at the end of a compressed segment - * can't look like a valid code). Because of the canonical ordering of - * codewords, this just means that there must be an unused slot in the - * longest codeword length category. Section K.2 of the JPEG spec suggests - * reserving such a slot by pretending that symbol 256 is a valid symbol - * with count 1. In theory that's not optimal; giving it count zero but - * including it in the symbol set anyway should give a better Huffman code. - * But the theoretically better code actually seems to come out worse in - * practice, because it produces more all-ones bytes (which incur stuffed - * zero bytes in the final file). In any case the difference is tiny. - * - * The JPEG standard requires Huffman codes to be no more than 16 bits long. - * If some symbols have a very small but nonzero probability, the Huffman tree - * must be adjusted to meet the code length restriction. We currently use - * the adjustment method suggested in JPEG section K.2. This method is *not* - * optimal; it may not choose the best possible limited-length code. But - * typically only very-low-frequency symbols will be given less-than-optimal - * lengths, so the code is almost optimal. Experimental comparisons against - * an optimal limited-length-code algorithm indicate that the difference is - * microscopic --- usually less than a hundredth of a percent of total size. - * So the extra complexity of an optimal algorithm doesn't seem worthwhile. - */ - -LOCAL(void) -jpeg_gen_optimal_table (j_compress_ptr cinfo, JHUFF_TBL * htbl, long freq[]) -{ -#define MAX_CLEN 32 /* assumed maximum initial code length */ - UINT8 bits[MAX_CLEN+1]; /* bits[k] = # of symbols with code length k */ - int codesize[257]; /* codesize[k] = code length of symbol k */ - int others[257]; /* next symbol in current branch of tree */ - int c1, c2; - int p, i, j; - long v; - - /* This algorithm is explained in section K.2 of the JPEG standard */ - - MEMZERO(bits, SIZEOF(bits)); - MEMZERO(codesize, SIZEOF(codesize)); - for (i = 0; i < 257; i++) - others[i] = -1; /* init links to empty */ - - freq[256] = 1; /* make sure 256 has a nonzero count */ - /* Including the pseudo-symbol 256 in the Huffman procedure guarantees - * that no real symbol is given code-value of all ones, because 256 - * will be placed last in the largest codeword category. - */ - - /* Huffman's basic algorithm to assign optimal code lengths to symbols */ - - for (;;) { - /* Find the smallest nonzero frequency, set c1 = its symbol */ - /* In case of ties, take the larger symbol number */ - c1 = -1; - v = 1000000000L; - for (i = 0; i <= 256; i++) { - if (freq[i] && freq[i] <= v) { - v = freq[i]; - c1 = i; - } - } - - /* Find the next smallest nonzero frequency, set c2 = its symbol */ - /* In case of ties, take the larger symbol number */ - c2 = -1; - v = 1000000000L; - for (i = 0; i <= 256; i++) { - if (freq[i] && freq[i] <= v && i != c1) { - v = freq[i]; - c2 = i; - } - } - - /* Done if we've merged everything into one frequency */ - if (c2 < 0) - break; - - /* Else merge the two counts/trees */ - freq[c1] += freq[c2]; - freq[c2] = 0; - - /* Increment the codesize of everything in c1's tree branch */ - codesize[c1]++; - while (others[c1] >= 0) { - c1 = others[c1]; - codesize[c1]++; - } - - others[c1] = c2; /* chain c2 onto c1's tree branch */ - - /* Increment the codesize of everything in c2's tree branch */ - codesize[c2]++; - while (others[c2] >= 0) { - c2 = others[c2]; - codesize[c2]++; - } - } - - /* Now count the number of symbols of each code length */ - for (i = 0; i <= 256; i++) { - if (codesize[i]) { - /* The JPEG standard seems to think that this can't happen, */ - /* but I'm paranoid... */ - if (codesize[i] > MAX_CLEN) - ERREXIT(cinfo, JERR_HUFF_CLEN_OVERFLOW); - - bits[codesize[i]]++; - } - } - - /* JPEG doesn't allow symbols with code lengths over 16 bits, so if the pure - * Huffman procedure assigned any such lengths, we must adjust the coding. - * Here is what the JPEG spec says about how this next bit works: - * Since symbols are paired for the longest Huffman code, the symbols are - * removed from this length category two at a time. The prefix for the pair - * (which is one bit shorter) is allocated to one of the pair; then, - * skipping the BITS entry for that prefix length, a code word from the next - * shortest nonzero BITS entry is converted into a prefix for two code words - * one bit longer. - */ - - for (i = MAX_CLEN; i > 16; i--) { - while (bits[i] > 0) { - j = i - 2; /* find length of new prefix to be used */ - while (bits[j] == 0) - j--; - - bits[i] -= 2; /* remove two symbols */ - bits[i-1]++; /* one goes in this length */ - bits[j+1] += 2; /* two new symbols in this length */ - bits[j]--; /* symbol of this length is now a prefix */ - } - } - - /* Remove the count for the pseudo-symbol 256 from the largest codelength */ - while (bits[i] == 0) /* find largest codelength still in use */ - i--; - bits[i]--; - - /* Return final symbol counts (only for lengths 0..16) */ - MEMCOPY(htbl->bits, bits, SIZEOF(htbl->bits)); - - /* Return a list of the symbols sorted by code length */ - /* It's not real clear to me why we don't need to consider the codelength - * changes made above, but the JPEG spec seems to think this works. - */ - p = 0; - for (i = 1; i <= MAX_CLEN; i++) { - for (j = 0; j <= 255; j++) { - if (codesize[j] == i) { - htbl->huffval[p] = (UINT8) j; - p++; - } - } - } - - /* Set sent_table FALSE so updated table will be written to JPEG file. */ - htbl->sent_table = FALSE; -} - - -/* - * Finish up a statistics-gathering pass and create the new Huffman tables. - */ - -METHODDEF(void) -finish_pass_gather (j_compress_ptr cinfo) -{ - huff_entropy_ptr entropy = (huff_entropy_ptr) cinfo->entropy; - int ci, tbl; - jpeg_component_info * compptr; - JHUFF_TBL **htblptr; - boolean did_dc[NUM_HUFF_TBLS]; - boolean did_ac[NUM_HUFF_TBLS]; - - /* It's important not to apply jpeg_gen_optimal_table more than once - * per table, because it clobbers the input frequency counts! - */ - if (cinfo->progressive_mode) - /* Flush out buffered data (all we care about is counting the EOB symbol) */ - emit_eobrun(entropy); - - MEMZERO(did_dc, SIZEOF(did_dc)); - MEMZERO(did_ac, SIZEOF(did_ac)); - - for (ci = 0; ci < cinfo->comps_in_scan; ci++) { - compptr = cinfo->cur_comp_info[ci]; - /* DC needs no table for refinement scan */ - if (cinfo->Ss == 0 && cinfo->Ah == 0) { - tbl = compptr->dc_tbl_no; - if (! did_dc[tbl]) { - htblptr = & cinfo->dc_huff_tbl_ptrs[tbl]; - if (*htblptr == NULL) - *htblptr = jpeg_alloc_huff_table((j_common_ptr) cinfo); - jpeg_gen_optimal_table(cinfo, *htblptr, entropy->dc_count_ptrs[tbl]); - did_dc[tbl] = TRUE; - } - } - /* AC needs no table when not present */ - if (cinfo->Se) { - tbl = compptr->ac_tbl_no; - if (! did_ac[tbl]) { - htblptr = & cinfo->ac_huff_tbl_ptrs[tbl]; - if (*htblptr == NULL) - *htblptr = jpeg_alloc_huff_table((j_common_ptr) cinfo); - jpeg_gen_optimal_table(cinfo, *htblptr, entropy->ac_count_ptrs[tbl]); - did_ac[tbl] = TRUE; - } - } - } -} - - -/* - * Initialize for a Huffman-compressed scan. - * If gather_statistics is TRUE, we do not output anything during the scan, - * just count the Huffman symbols used and generate Huffman code tables. - */ - -METHODDEF(void) -start_pass_huff (j_compress_ptr cinfo, boolean gather_statistics) -{ - huff_entropy_ptr entropy = (huff_entropy_ptr) cinfo->entropy; - int ci, tbl; - jpeg_component_info * compptr; - - if (gather_statistics) - entropy->pub.finish_pass = finish_pass_gather; - else - entropy->pub.finish_pass = finish_pass_huff; - - if (cinfo->progressive_mode) { - entropy->cinfo = cinfo; - entropy->gather_statistics = gather_statistics; - - /* We assume jcmaster.c already validated the scan parameters. */ - - /* Select execution routine */ - if (cinfo->Ah == 0) { - if (cinfo->Ss == 0) - entropy->pub.encode_mcu = encode_mcu_DC_first; - else - entropy->pub.encode_mcu = encode_mcu_AC_first; - } else { - if (cinfo->Ss == 0) - entropy->pub.encode_mcu = encode_mcu_DC_refine; - else { - entropy->pub.encode_mcu = encode_mcu_AC_refine; - /* AC refinement needs a correction bit buffer */ - if (entropy->bit_buffer == NULL) - entropy->bit_buffer = (char *) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - MAX_CORR_BITS * SIZEOF(char)); - } - } - - /* Initialize AC stuff */ - entropy->ac_tbl_no = cinfo->cur_comp_info[0]->ac_tbl_no; - entropy->EOBRUN = 0; - entropy->BE = 0; - } else { - if (gather_statistics) - entropy->pub.encode_mcu = encode_mcu_gather; - else - entropy->pub.encode_mcu = encode_mcu_huff; - } - - for (ci = 0; ci < cinfo->comps_in_scan; ci++) { - compptr = cinfo->cur_comp_info[ci]; - /* DC needs no table for refinement scan */ - if (cinfo->Ss == 0 && cinfo->Ah == 0) { - tbl = compptr->dc_tbl_no; - if (gather_statistics) { - /* Check for invalid table index */ - /* (make_c_derived_tbl does this in the other path) */ - if (tbl < 0 || tbl >= NUM_HUFF_TBLS) - ERREXIT1(cinfo, JERR_NO_HUFF_TABLE, tbl); - /* Allocate and zero the statistics tables */ - /* Note that jpeg_gen_optimal_table expects 257 entries in each table! */ - if (entropy->dc_count_ptrs[tbl] == NULL) - entropy->dc_count_ptrs[tbl] = (long *) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - 257 * SIZEOF(long)); - MEMZERO(entropy->dc_count_ptrs[tbl], 257 * SIZEOF(long)); - } else { - /* Compute derived values for Huffman tables */ - /* We may do this more than once for a table, but it's not expensive */ - jpeg_make_c_derived_tbl(cinfo, TRUE, tbl, - & entropy->dc_derived_tbls[tbl]); - } - /* Initialize DC predictions to 0 */ - entropy->saved.last_dc_val[ci] = 0; - } - /* AC needs no table when not present */ - if (cinfo->Se) { - tbl = compptr->ac_tbl_no; - if (gather_statistics) { - if (tbl < 0 || tbl >= NUM_HUFF_TBLS) - ERREXIT1(cinfo, JERR_NO_HUFF_TABLE, tbl); - if (entropy->ac_count_ptrs[tbl] == NULL) - entropy->ac_count_ptrs[tbl] = (long *) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - 257 * SIZEOF(long)); - MEMZERO(entropy->ac_count_ptrs[tbl], 257 * SIZEOF(long)); - } else { - jpeg_make_c_derived_tbl(cinfo, FALSE, tbl, - & entropy->ac_derived_tbls[tbl]); - } - } - } - - /* Initialize bit buffer to empty */ - entropy->saved.put_buffer = 0; - entropy->saved.put_bits = 0; - - /* Initialize restart stuff */ - entropy->restarts_to_go = cinfo->restart_interval; - entropy->next_restart_num = 0; -} - - -/* - * Module initialization routine for Huffman entropy encoding. - */ - -GLOBAL(void) -jinit_huff_encoder (j_compress_ptr cinfo) -{ - huff_entropy_ptr entropy; - int i; - - entropy = (huff_entropy_ptr) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - SIZEOF(huff_entropy_encoder)); - cinfo->entropy = (struct jpeg_entropy_encoder *) entropy; - entropy->pub.start_pass = start_pass_huff; - - /* Mark tables unallocated */ - for (i = 0; i < NUM_HUFF_TBLS; i++) { - entropy->dc_derived_tbls[i] = entropy->ac_derived_tbls[i] = NULL; - entropy->dc_count_ptrs[i] = entropy->ac_count_ptrs[i] = NULL; - } - - if (cinfo->progressive_mode) - entropy->bit_buffer = NULL; /* needed only in AC refinement scan */ -} diff --git a/jpg/jcinit.c b/jpg/jcinit.c deleted file mode 100644 index 0ba310f..0000000 --- a/jpg/jcinit.c +++ /dev/null @@ -1,65 +0,0 @@ -/* - * jcinit.c - * - * Copyright (C) 1991-1997, Thomas G. Lane. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file contains initialization logic for the JPEG compressor. - * This routine is in charge of selecting the modules to be executed and - * making an initialization call to each one. - * - * Logically, this code belongs in jcmaster.c. It's split out because - * linking this routine implies linking the entire compression library. - * For a transcoding-only application, we want to be able to use jcmaster.c - * without linking in the whole library. - */ - -#define JPEG_INTERNALS -#include "jinclude.h" -#include "jpeglib.h" - - -/* - * Master selection of compression modules. - * This is done once at the start of processing an image. We determine - * which modules will be used and give them appropriate initialization calls. - */ - -GLOBAL(void) -jinit_compress_master (j_compress_ptr cinfo) -{ - /* Initialize master control (includes parameter checking/processing) */ - jinit_c_master_control(cinfo, FALSE /* full compression */); - - /* Preprocessing */ - if (! cinfo->raw_data_in) { - jinit_color_converter(cinfo); - jinit_downsampler(cinfo); - jinit_c_prep_controller(cinfo, FALSE /* never need full buffer here */); - } - /* Forward DCT */ - jinit_forward_dct(cinfo); - /* Entropy encoding: either Huffman or arithmetic coding. */ - if (cinfo->arith_code) - jinit_arith_encoder(cinfo); - else { - jinit_huff_encoder(cinfo); - } - - /* Need a full-image coefficient buffer in any multi-pass mode. */ - jinit_c_coef_controller(cinfo, - (boolean) (cinfo->num_scans > 1 || cinfo->optimize_coding)); - jinit_c_main_controller(cinfo, FALSE /* never need full buffer here */); - - jinit_marker_writer(cinfo); - - /* We can now tell the memory manager to allocate virtual arrays. */ - (*cinfo->mem->realize_virt_arrays) ((j_common_ptr) cinfo); - - /* Write the datastream header (SOI) immediately. - * Frame and scan headers are postponed till later. - * This lets application insert special markers after the SOI. - */ - (*cinfo->marker->write_file_header) (cinfo); -} diff --git a/jpg/jcmainct.c b/jpg/jcmainct.c deleted file mode 100644 index 7de75d1..0000000 --- a/jpg/jcmainct.c +++ /dev/null @@ -1,293 +0,0 @@ -/* - * jcmainct.c - * - * Copyright (C) 1994-1996, Thomas G. Lane. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file contains the main buffer controller for compression. - * The main buffer lies between the pre-processor and the JPEG - * compressor proper; it holds downsampled data in the JPEG colorspace. - */ - -#define JPEG_INTERNALS -#include "jinclude.h" -#include "jpeglib.h" - - -/* Note: currently, there is no operating mode in which a full-image buffer - * is needed at this step. If there were, that mode could not be used with - * "raw data" input, since this module is bypassed in that case. However, - * we've left the code here for possible use in special applications. - */ -#undef FULL_MAIN_BUFFER_SUPPORTED - - -/* Private buffer controller object */ - -typedef struct { - struct jpeg_c_main_controller pub; /* public fields */ - - JDIMENSION cur_iMCU_row; /* number of current iMCU row */ - JDIMENSION rowgroup_ctr; /* counts row groups received in iMCU row */ - boolean suspended; /* remember if we suspended output */ - J_BUF_MODE pass_mode; /* current operating mode */ - - /* If using just a strip buffer, this points to the entire set of buffers - * (we allocate one for each component). In the full-image case, this - * points to the currently accessible strips of the virtual arrays. - */ - JSAMPARRAY buffer[MAX_COMPONENTS]; - -#ifdef FULL_MAIN_BUFFER_SUPPORTED - /* If using full-image storage, this array holds pointers to virtual-array - * control blocks for each component. Unused if not full-image storage. - */ - jvirt_sarray_ptr whole_image[MAX_COMPONENTS]; -#endif -} my_main_controller; - -typedef my_main_controller * my_main_ptr; - - -/* Forward declarations */ -METHODDEF(void) process_data_simple_main - JPP((j_compress_ptr cinfo, JSAMPARRAY input_buf, - JDIMENSION *in_row_ctr, JDIMENSION in_rows_avail)); -#ifdef FULL_MAIN_BUFFER_SUPPORTED -METHODDEF(void) process_data_buffer_main - JPP((j_compress_ptr cinfo, JSAMPARRAY input_buf, - JDIMENSION *in_row_ctr, JDIMENSION in_rows_avail)); -#endif - - -/* - * Initialize for a processing pass. - */ - -METHODDEF(void) -start_pass_main (j_compress_ptr cinfo, J_BUF_MODE pass_mode) -{ - my_main_ptr main = (my_main_ptr) cinfo->main; - - /* Do nothing in raw-data mode. */ - if (cinfo->raw_data_in) - return; - - main->cur_iMCU_row = 0; /* initialize counters */ - main->rowgroup_ctr = 0; - main->suspended = FALSE; - main->pass_mode = pass_mode; /* save mode for use by process_data */ - - switch (pass_mode) { - case JBUF_PASS_THRU: -#ifdef FULL_MAIN_BUFFER_SUPPORTED - if (main->whole_image[0] != NULL) - ERREXIT(cinfo, JERR_BAD_BUFFER_MODE); -#endif - main->pub.process_data = process_data_simple_main; - break; -#ifdef FULL_MAIN_BUFFER_SUPPORTED - case JBUF_SAVE_SOURCE: - case JBUF_CRANK_DEST: - case JBUF_SAVE_AND_PASS: - if (main->whole_image[0] == NULL) - ERREXIT(cinfo, JERR_BAD_BUFFER_MODE); - main->pub.process_data = process_data_buffer_main; - break; -#endif - default: - ERREXIT(cinfo, JERR_BAD_BUFFER_MODE); - break; - } -} - - -/* - * Process some data. - * This routine handles the simple pass-through mode, - * where we have only a strip buffer. - */ - -METHODDEF(void) -process_data_simple_main (j_compress_ptr cinfo, - JSAMPARRAY input_buf, JDIMENSION *in_row_ctr, - JDIMENSION in_rows_avail) -{ - my_main_ptr main = (my_main_ptr) cinfo->main; - - while (main->cur_iMCU_row < cinfo->total_iMCU_rows) { - /* Read input data if we haven't filled the main buffer yet */ - if (main->rowgroup_ctr < (JDIMENSION) cinfo->min_DCT_v_scaled_size) - (*cinfo->prep->pre_process_data) (cinfo, - input_buf, in_row_ctr, in_rows_avail, - main->buffer, &main->rowgroup_ctr, - (JDIMENSION) cinfo->min_DCT_v_scaled_size); - - /* If we don't have a full iMCU row buffered, return to application for - * more data. Note that preprocessor will always pad to fill the iMCU row - * at the bottom of the image. - */ - if (main->rowgroup_ctr != (JDIMENSION) cinfo->min_DCT_v_scaled_size) - return; - - /* Send the completed row to the compressor */ - if (! (*cinfo->coef->compress_data) (cinfo, main->buffer)) { - /* If compressor did not consume the whole row, then we must need to - * suspend processing and return to the application. In this situation - * we pretend we didn't yet consume the last input row; otherwise, if - * it happened to be the last row of the image, the application would - * think we were done. - */ - if (! main->suspended) { - (*in_row_ctr)--; - main->suspended = TRUE; - } - return; - } - /* We did finish the row. Undo our little suspension hack if a previous - * call suspended; then mark the main buffer empty. - */ - if (main->suspended) { - (*in_row_ctr)++; - main->suspended = FALSE; - } - main->rowgroup_ctr = 0; - main->cur_iMCU_row++; - } -} - - -#ifdef FULL_MAIN_BUFFER_SUPPORTED - -/* - * Process some data. - * This routine handles all of the modes that use a full-size buffer. - */ - -METHODDEF(void) -process_data_buffer_main (j_compress_ptr cinfo, - JSAMPARRAY input_buf, JDIMENSION *in_row_ctr, - JDIMENSION in_rows_avail) -{ - my_main_ptr main = (my_main_ptr) cinfo->main; - int ci; - jpeg_component_info *compptr; - boolean writing = (main->pass_mode != JBUF_CRANK_DEST); - - while (main->cur_iMCU_row < cinfo->total_iMCU_rows) { - /* Realign the virtual buffers if at the start of an iMCU row. */ - if (main->rowgroup_ctr == 0) { - for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components; - ci++, compptr++) { - main->buffer[ci] = (*cinfo->mem->access_virt_sarray) - ((j_common_ptr) cinfo, main->whole_image[ci], - main->cur_iMCU_row * (compptr->v_samp_factor * DCTSIZE), - (JDIMENSION) (compptr->v_samp_factor * DCTSIZE), writing); - } - /* In a read pass, pretend we just read some source data. */ - if (! writing) { - *in_row_ctr += cinfo->max_v_samp_factor * DCTSIZE; - main->rowgroup_ctr = DCTSIZE; - } - } - - /* If a write pass, read input data until the current iMCU row is full. */ - /* Note: preprocessor will pad if necessary to fill the last iMCU row. */ - if (writing) { - (*cinfo->prep->pre_process_data) (cinfo, - input_buf, in_row_ctr, in_rows_avail, - main->buffer, &main->rowgroup_ctr, - (JDIMENSION) DCTSIZE); - /* Return to application if we need more data to fill the iMCU row. */ - if (main->rowgroup_ctr < DCTSIZE) - return; - } - - /* Emit data, unless this is a sink-only pass. */ - if (main->pass_mode != JBUF_SAVE_SOURCE) { - if (! (*cinfo->coef->compress_data) (cinfo, main->buffer)) { - /* If compressor did not consume the whole row, then we must need to - * suspend processing and return to the application. In this situation - * we pretend we didn't yet consume the last input row; otherwise, if - * it happened to be the last row of the image, the application would - * think we were done. - */ - if (! main->suspended) { - (*in_row_ctr)--; - main->suspended = TRUE; - } - return; - } - /* We did finish the row. Undo our little suspension hack if a previous - * call suspended; then mark the main buffer empty. - */ - if (main->suspended) { - (*in_row_ctr)++; - main->suspended = FALSE; - } - } - - /* If get here, we are done with this iMCU row. Mark buffer empty. */ - main->rowgroup_ctr = 0; - main->cur_iMCU_row++; - } -} - -#endif /* FULL_MAIN_BUFFER_SUPPORTED */ - - -/* - * Initialize main buffer controller. - */ - -GLOBAL(void) -jinit_c_main_controller (j_compress_ptr cinfo, boolean need_full_buffer) -{ - my_main_ptr main; - int ci; - jpeg_component_info *compptr; - - main = (my_main_ptr) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - SIZEOF(my_main_controller)); - cinfo->main = (struct jpeg_c_main_controller *) main; - main->pub.start_pass = start_pass_main; - - /* We don't need to create a buffer in raw-data mode. */ - if (cinfo->raw_data_in) - return; - - /* Create the buffer. It holds downsampled data, so each component - * may be of a different size. - */ - if (need_full_buffer) { -#ifdef FULL_MAIN_BUFFER_SUPPORTED - /* Allocate a full-image virtual array for each component */ - /* Note we pad the bottom to a multiple of the iMCU height */ - for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components; - ci++, compptr++) { - main->whole_image[ci] = (*cinfo->mem->request_virt_sarray) - ((j_common_ptr) cinfo, JPOOL_IMAGE, FALSE, - compptr->width_in_blocks * compptr->DCT_h_scaled_size, - (JDIMENSION) jround_up((long) compptr->height_in_blocks, - (long) compptr->v_samp_factor) * DCTSIZE, - (JDIMENSION) (compptr->v_samp_factor * compptr->DCT_v_scaled_size)); - } -#else - ERREXIT(cinfo, JERR_BAD_BUFFER_MODE); -#endif - } else { -#ifdef FULL_MAIN_BUFFER_SUPPORTED - main->whole_image[0] = NULL; /* flag for no virtual arrays */ -#endif - /* Allocate a strip buffer for each component */ - for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components; - ci++, compptr++) { - main->buffer[ci] = (*cinfo->mem->alloc_sarray) - ((j_common_ptr) cinfo, JPOOL_IMAGE, - compptr->width_in_blocks * compptr->DCT_h_scaled_size, - (JDIMENSION) (compptr->v_samp_factor * compptr->DCT_v_scaled_size)); - } - } -} diff --git a/jpg/jcmarker.c b/jpg/jcmarker.c deleted file mode 100644 index 606c19a..0000000 --- a/jpg/jcmarker.c +++ /dev/null @@ -1,682 +0,0 @@ -/* - * jcmarker.c - * - * Copyright (C) 1991-1998, Thomas G. Lane. - * Modified 2003-2010 by Guido Vollbeding. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file contains routines to write JPEG datastream markers. - */ - -#define JPEG_INTERNALS -#include "jinclude.h" -#include "jpeglib.h" - - -typedef enum { /* JPEG marker codes */ - M_SOF0 = 0xc0, - M_SOF1 = 0xc1, - M_SOF2 = 0xc2, - M_SOF3 = 0xc3, - - M_SOF5 = 0xc5, - M_SOF6 = 0xc6, - M_SOF7 = 0xc7, - - M_JPG = 0xc8, - M_SOF9 = 0xc9, - M_SOF10 = 0xca, - M_SOF11 = 0xcb, - - M_SOF13 = 0xcd, - M_SOF14 = 0xce, - M_SOF15 = 0xcf, - - M_DHT = 0xc4, - - M_DAC = 0xcc, - - M_RST0 = 0xd0, - M_RST1 = 0xd1, - M_RST2 = 0xd2, - M_RST3 = 0xd3, - M_RST4 = 0xd4, - M_RST5 = 0xd5, - M_RST6 = 0xd6, - M_RST7 = 0xd7, - - M_SOI = 0xd8, - M_EOI = 0xd9, - M_SOS = 0xda, - M_DQT = 0xdb, - M_DNL = 0xdc, - M_DRI = 0xdd, - M_DHP = 0xde, - M_EXP = 0xdf, - - M_APP0 = 0xe0, - M_APP1 = 0xe1, - M_APP2 = 0xe2, - M_APP3 = 0xe3, - M_APP4 = 0xe4, - M_APP5 = 0xe5, - M_APP6 = 0xe6, - M_APP7 = 0xe7, - M_APP8 = 0xe8, - M_APP9 = 0xe9, - M_APP10 = 0xea, - M_APP11 = 0xeb, - M_APP12 = 0xec, - M_APP13 = 0xed, - M_APP14 = 0xee, - M_APP15 = 0xef, - - M_JPG0 = 0xf0, - M_JPG13 = 0xfd, - M_COM = 0xfe, - - M_TEM = 0x01, - - M_ERROR = 0x100 -} JPEG_MARKER; - - -/* Private state */ - -typedef struct { - struct jpeg_marker_writer pub; /* public fields */ - - unsigned int last_restart_interval; /* last DRI value emitted; 0 after SOI */ -} my_marker_writer; - -typedef my_marker_writer * my_marker_ptr; - - -/* - * Basic output routines. - * - * Note that we do not support suspension while writing a marker. - * Therefore, an application using suspension must ensure that there is - * enough buffer space for the initial markers (typ. 600-700 bytes) before - * calling jpeg_start_compress, and enough space to write the trailing EOI - * (a few bytes) before calling jpeg_finish_compress. Multipass compression - * modes are not supported at all with suspension, so those two are the only - * points where markers will be written. - */ - -LOCAL(void) -emit_byte (j_compress_ptr cinfo, int val) -/* Emit a byte */ -{ - struct jpeg_destination_mgr * dest = cinfo->dest; - - *(dest->next_output_byte)++ = (JOCTET) val; - if (--dest->free_in_buffer == 0) { - if (! (*dest->empty_output_buffer) (cinfo)) - ERREXIT(cinfo, JERR_CANT_SUSPEND); - } -} - - -LOCAL(void) -emit_marker (j_compress_ptr cinfo, JPEG_MARKER mark) -/* Emit a marker code */ -{ - emit_byte(cinfo, 0xFF); - emit_byte(cinfo, (int) mark); -} - - -LOCAL(void) -emit_2bytes (j_compress_ptr cinfo, int value) -/* Emit a 2-byte integer; these are always MSB first in JPEG files */ -{ - emit_byte(cinfo, (value >> 8) & 0xFF); - emit_byte(cinfo, value & 0xFF); -} - - -/* - * Routines to write specific marker types. - */ - -LOCAL(int) -emit_dqt (j_compress_ptr cinfo, int index) -/* Emit a DQT marker */ -/* Returns the precision used (0 = 8bits, 1 = 16bits) for baseline checking */ -{ - JQUANT_TBL * qtbl = cinfo->quant_tbl_ptrs[index]; - int prec; - int i; - - if (qtbl == NULL) - ERREXIT1(cinfo, JERR_NO_QUANT_TABLE, index); - - prec = 0; - for (i = 0; i <= cinfo->lim_Se; i++) { - if (qtbl->quantval[cinfo->natural_order[i]] > 255) - prec = 1; - } - - if (! qtbl->sent_table) { - emit_marker(cinfo, M_DQT); - - emit_2bytes(cinfo, - prec ? cinfo->lim_Se * 2 + 2 + 1 + 2 : cinfo->lim_Se + 1 + 1 + 2); - - emit_byte(cinfo, index + (prec<<4)); - - for (i = 0; i <= cinfo->lim_Se; i++) { - /* The table entries must be emitted in zigzag order. */ - unsigned int qval = qtbl->quantval[cinfo->natural_order[i]]; - if (prec) - emit_byte(cinfo, (int) (qval >> 8)); - emit_byte(cinfo, (int) (qval & 0xFF)); - } - - qtbl->sent_table = TRUE; - } - - return prec; -} - - -LOCAL(void) -emit_dht (j_compress_ptr cinfo, int index, boolean is_ac) -/* Emit a DHT marker */ -{ - JHUFF_TBL * htbl; - int length, i; - - if (is_ac) { - htbl = cinfo->ac_huff_tbl_ptrs[index]; - index += 0x10; /* output index has AC bit set */ - } else { - htbl = cinfo->dc_huff_tbl_ptrs[index]; - } - - if (htbl == NULL) - ERREXIT1(cinfo, JERR_NO_HUFF_TABLE, index); - - if (! htbl->sent_table) { - emit_marker(cinfo, M_DHT); - - length = 0; - for (i = 1; i <= 16; i++) - length += htbl->bits[i]; - - emit_2bytes(cinfo, length + 2 + 1 + 16); - emit_byte(cinfo, index); - - for (i = 1; i <= 16; i++) - emit_byte(cinfo, htbl->bits[i]); - - for (i = 0; i < length; i++) - emit_byte(cinfo, htbl->huffval[i]); - - htbl->sent_table = TRUE; - } -} - - -LOCAL(void) -emit_dac (j_compress_ptr cinfo) -/* Emit a DAC marker */ -/* Since the useful info is so small, we want to emit all the tables in */ -/* one DAC marker. Therefore this routine does its own scan of the table. */ -{ -#ifdef C_ARITH_CODING_SUPPORTED - char dc_in_use[NUM_ARITH_TBLS]; - char ac_in_use[NUM_ARITH_TBLS]; - int length, i; - jpeg_component_info *compptr; - - for (i = 0; i < NUM_ARITH_TBLS; i++) - dc_in_use[i] = ac_in_use[i] = 0; - - for (i = 0; i < cinfo->comps_in_scan; i++) { - compptr = cinfo->cur_comp_info[i]; - /* DC needs no table for refinement scan */ - if (cinfo->Ss == 0 && cinfo->Ah == 0) - dc_in_use[compptr->dc_tbl_no] = 1; - /* AC needs no table when not present */ - if (cinfo->Se) - ac_in_use[compptr->ac_tbl_no] = 1; - } - - length = 0; - for (i = 0; i < NUM_ARITH_TBLS; i++) - length += dc_in_use[i] + ac_in_use[i]; - - if (length) { - emit_marker(cinfo, M_DAC); - - emit_2bytes(cinfo, length*2 + 2); - - for (i = 0; i < NUM_ARITH_TBLS; i++) { - if (dc_in_use[i]) { - emit_byte(cinfo, i); - emit_byte(cinfo, cinfo->arith_dc_L[i] + (cinfo->arith_dc_U[i]<<4)); - } - if (ac_in_use[i]) { - emit_byte(cinfo, i + 0x10); - emit_byte(cinfo, cinfo->arith_ac_K[i]); - } - } - } -#endif /* C_ARITH_CODING_SUPPORTED */ -} - - -LOCAL(void) -emit_dri (j_compress_ptr cinfo) -/* Emit a DRI marker */ -{ - emit_marker(cinfo, M_DRI); - - emit_2bytes(cinfo, 4); /* fixed length */ - - emit_2bytes(cinfo, (int) cinfo->restart_interval); -} - - -LOCAL(void) -emit_sof (j_compress_ptr cinfo, JPEG_MARKER code) -/* Emit a SOF marker */ -{ - int ci; - jpeg_component_info *compptr; - - emit_marker(cinfo, code); - - emit_2bytes(cinfo, 3 * cinfo->num_components + 2 + 5 + 1); /* length */ - - /* Make sure image isn't bigger than SOF field can handle */ - if ((long) cinfo->jpeg_height > 65535L || - (long) cinfo->jpeg_width > 65535L) - ERREXIT1(cinfo, JERR_IMAGE_TOO_BIG, (unsigned int) 65535); - - emit_byte(cinfo, cinfo->data_precision); - emit_2bytes(cinfo, (int) cinfo->jpeg_height); - emit_2bytes(cinfo, (int) cinfo->jpeg_width); - - emit_byte(cinfo, cinfo->num_components); - - for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components; - ci++, compptr++) { - emit_byte(cinfo, compptr->component_id); - emit_byte(cinfo, (compptr->h_samp_factor << 4) + compptr->v_samp_factor); - emit_byte(cinfo, compptr->quant_tbl_no); - } -} - - -LOCAL(void) -emit_sos (j_compress_ptr cinfo) -/* Emit a SOS marker */ -{ - int i, td, ta; - jpeg_component_info *compptr; - - emit_marker(cinfo, M_SOS); - - emit_2bytes(cinfo, 2 * cinfo->comps_in_scan + 2 + 1 + 3); /* length */ - - emit_byte(cinfo, cinfo->comps_in_scan); - - for (i = 0; i < cinfo->comps_in_scan; i++) { - compptr = cinfo->cur_comp_info[i]; - emit_byte(cinfo, compptr->component_id); - - /* We emit 0 for unused field(s); this is recommended by the P&M text - * but does not seem to be specified in the standard. - */ - - /* DC needs no table for refinement scan */ - td = cinfo->Ss == 0 && cinfo->Ah == 0 ? compptr->dc_tbl_no : 0; - /* AC needs no table when not present */ - ta = cinfo->Se ? compptr->ac_tbl_no : 0; - - emit_byte(cinfo, (td << 4) + ta); - } - - emit_byte(cinfo, cinfo->Ss); - emit_byte(cinfo, cinfo->Se); - emit_byte(cinfo, (cinfo->Ah << 4) + cinfo->Al); -} - - -LOCAL(void) -emit_pseudo_sos (j_compress_ptr cinfo) -/* Emit a pseudo SOS marker */ -{ - emit_marker(cinfo, M_SOS); - - emit_2bytes(cinfo, 2 + 1 + 3); /* length */ - - emit_byte(cinfo, 0); /* Ns */ - - emit_byte(cinfo, 0); /* Ss */ - emit_byte(cinfo, cinfo->block_size * cinfo->block_size - 1); /* Se */ - emit_byte(cinfo, 0); /* Ah/Al */ -} - - -LOCAL(void) -emit_jfif_app0 (j_compress_ptr cinfo) -/* Emit a JFIF-compliant APP0 marker */ -{ - /* - * Length of APP0 block (2 bytes) - * Block ID (4 bytes - ASCII "JFIF") - * Zero byte (1 byte to terminate the ID string) - * Version Major, Minor (2 bytes - major first) - * Units (1 byte - 0x00 = none, 0x01 = inch, 0x02 = cm) - * Xdpu (2 bytes - dots per unit horizontal) - * Ydpu (2 bytes - dots per unit vertical) - * Thumbnail X size (1 byte) - * Thumbnail Y size (1 byte) - */ - - emit_marker(cinfo, M_APP0); - - emit_2bytes(cinfo, 2 + 4 + 1 + 2 + 1 + 2 + 2 + 1 + 1); /* length */ - - emit_byte(cinfo, 0x4A); /* Identifier: ASCII "JFIF" */ - emit_byte(cinfo, 0x46); - emit_byte(cinfo, 0x49); - emit_byte(cinfo, 0x46); - emit_byte(cinfo, 0); - emit_byte(cinfo, cinfo->JFIF_major_version); /* Version fields */ - emit_byte(cinfo, cinfo->JFIF_minor_version); - emit_byte(cinfo, cinfo->density_unit); /* Pixel size information */ - emit_2bytes(cinfo, (int) cinfo->X_density); - emit_2bytes(cinfo, (int) cinfo->Y_density); - emit_byte(cinfo, 0); /* No thumbnail image */ - emit_byte(cinfo, 0); -} - - -LOCAL(void) -emit_adobe_app14 (j_compress_ptr cinfo) -/* Emit an Adobe APP14 marker */ -{ - /* - * Length of APP14 block (2 bytes) - * Block ID (5 bytes - ASCII "Adobe") - * Version Number (2 bytes - currently 100) - * Flags0 (2 bytes - currently 0) - * Flags1 (2 bytes - currently 0) - * Color transform (1 byte) - * - * Although Adobe TN 5116 mentions Version = 101, all the Adobe files - * now in circulation seem to use Version = 100, so that's what we write. - * - * We write the color transform byte as 1 if the JPEG color space is - * YCbCr, 2 if it's YCCK, 0 otherwise. Adobe's definition has to do with - * whether the encoder performed a transformation, which is pretty useless. - */ - - emit_marker(cinfo, M_APP14); - - emit_2bytes(cinfo, 2 + 5 + 2 + 2 + 2 + 1); /* length */ - - emit_byte(cinfo, 0x41); /* Identifier: ASCII "Adobe" */ - emit_byte(cinfo, 0x64); - emit_byte(cinfo, 0x6F); - emit_byte(cinfo, 0x62); - emit_byte(cinfo, 0x65); - emit_2bytes(cinfo, 100); /* Version */ - emit_2bytes(cinfo, 0); /* Flags0 */ - emit_2bytes(cinfo, 0); /* Flags1 */ - switch (cinfo->jpeg_color_space) { - case JCS_YCbCr: - emit_byte(cinfo, 1); /* Color transform = 1 */ - break; - case JCS_YCCK: - emit_byte(cinfo, 2); /* Color transform = 2 */ - break; - default: - emit_byte(cinfo, 0); /* Color transform = 0 */ - break; - } -} - - -/* - * These routines allow writing an arbitrary marker with parameters. - * The only intended use is to emit COM or APPn markers after calling - * write_file_header and before calling write_frame_header. - * Other uses are not guaranteed to produce desirable results. - * Counting the parameter bytes properly is the caller's responsibility. - */ - -METHODDEF(void) -write_marker_header (j_compress_ptr cinfo, int marker, unsigned int datalen) -/* Emit an arbitrary marker header */ -{ - if (datalen > (unsigned int) 65533) /* safety check */ - ERREXIT(cinfo, JERR_BAD_LENGTH); - - emit_marker(cinfo, (JPEG_MARKER) marker); - - emit_2bytes(cinfo, (int) (datalen + 2)); /* total length */ -} - -METHODDEF(void) -write_marker_byte (j_compress_ptr cinfo, int val) -/* Emit one byte of marker parameters following write_marker_header */ -{ - emit_byte(cinfo, val); -} - - -/* - * Write datastream header. - * This consists of an SOI and optional APPn markers. - * We recommend use of the JFIF marker, but not the Adobe marker, - * when using YCbCr or grayscale data. The JFIF marker should NOT - * be used for any other JPEG colorspace. The Adobe marker is helpful - * to distinguish RGB, CMYK, and YCCK colorspaces. - * Note that an application can write additional header markers after - * jpeg_start_compress returns. - */ - -METHODDEF(void) -write_file_header (j_compress_ptr cinfo) -{ - my_marker_ptr marker = (my_marker_ptr) cinfo->marker; - - emit_marker(cinfo, M_SOI); /* first the SOI */ - - /* SOI is defined to reset restart interval to 0 */ - marker->last_restart_interval = 0; - - if (cinfo->write_JFIF_header) /* next an optional JFIF APP0 */ - emit_jfif_app0(cinfo); - if (cinfo->write_Adobe_marker) /* next an optional Adobe APP14 */ - emit_adobe_app14(cinfo); -} - - -/* - * Write frame header. - * This consists of DQT and SOFn markers, and a conditional pseudo SOS marker. - * Note that we do not emit the SOF until we have emitted the DQT(s). - * This avoids compatibility problems with incorrect implementations that - * try to error-check the quant table numbers as soon as they see the SOF. - */ - -METHODDEF(void) -write_frame_header (j_compress_ptr cinfo) -{ - int ci, prec; - boolean is_baseline; - jpeg_component_info *compptr; - - /* Emit DQT for each quantization table. - * Note that emit_dqt() suppresses any duplicate tables. - */ - prec = 0; - for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components; - ci++, compptr++) { - prec += emit_dqt(cinfo, compptr->quant_tbl_no); - } - /* now prec is nonzero iff there are any 16-bit quant tables. */ - - /* Check for a non-baseline specification. - * Note we assume that Huffman table numbers won't be changed later. - */ - if (cinfo->arith_code || cinfo->progressive_mode || - cinfo->data_precision != 8 || cinfo->block_size != DCTSIZE) { - is_baseline = FALSE; - } else { - is_baseline = TRUE; - for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components; - ci++, compptr++) { - if (compptr->dc_tbl_no > 1 || compptr->ac_tbl_no > 1) - is_baseline = FALSE; - } - if (prec && is_baseline) { - is_baseline = FALSE; - /* If it's baseline except for quantizer size, warn the user */ - TRACEMS(cinfo, 0, JTRC_16BIT_TABLES); - } - } - - /* Emit the proper SOF marker */ - if (cinfo->arith_code) { - if (cinfo->progressive_mode) - emit_sof(cinfo, M_SOF10); /* SOF code for progressive arithmetic */ - else - emit_sof(cinfo, M_SOF9); /* SOF code for sequential arithmetic */ - } else { - if (cinfo->progressive_mode) - emit_sof(cinfo, M_SOF2); /* SOF code for progressive Huffman */ - else if (is_baseline) - emit_sof(cinfo, M_SOF0); /* SOF code for baseline implementation */ - else - emit_sof(cinfo, M_SOF1); /* SOF code for non-baseline Huffman file */ - } - - /* Check to emit pseudo SOS marker */ - if (cinfo->progressive_mode && cinfo->block_size != DCTSIZE) - emit_pseudo_sos(cinfo); -} - - -/* - * Write scan header. - * This consists of DHT or DAC markers, optional DRI, and SOS. - * Compressed data will be written following the SOS. - */ - -METHODDEF(void) -write_scan_header (j_compress_ptr cinfo) -{ - my_marker_ptr marker = (my_marker_ptr) cinfo->marker; - int i; - jpeg_component_info *compptr; - - if (cinfo->arith_code) { - /* Emit arith conditioning info. We may have some duplication - * if the file has multiple scans, but it's so small it's hardly - * worth worrying about. - */ - emit_dac(cinfo); - } else { - /* Emit Huffman tables. - * Note that emit_dht() suppresses any duplicate tables. - */ - for (i = 0; i < cinfo->comps_in_scan; i++) { - compptr = cinfo->cur_comp_info[i]; - /* DC needs no table for refinement scan */ - if (cinfo->Ss == 0 && cinfo->Ah == 0) - emit_dht(cinfo, compptr->dc_tbl_no, FALSE); - /* AC needs no table when not present */ - if (cinfo->Se) - emit_dht(cinfo, compptr->ac_tbl_no, TRUE); - } - } - - /* Emit DRI if required --- note that DRI value could change for each scan. - * We avoid wasting space with unnecessary DRIs, however. - */ - if (cinfo->restart_interval != marker->last_restart_interval) { - emit_dri(cinfo); - marker->last_restart_interval = cinfo->restart_interval; - } - - emit_sos(cinfo); -} - - -/* - * Write datastream trailer. - */ - -METHODDEF(void) -write_file_trailer (j_compress_ptr cinfo) -{ - emit_marker(cinfo, M_EOI); -} - - -/* - * Write an abbreviated table-specification datastream. - * This consists of SOI, DQT and DHT tables, and EOI. - * Any table that is defined and not marked sent_table = TRUE will be - * emitted. Note that all tables will be marked sent_table = TRUE at exit. - */ - -METHODDEF(void) -write_tables_only (j_compress_ptr cinfo) -{ - int i; - - emit_marker(cinfo, M_SOI); - - for (i = 0; i < NUM_QUANT_TBLS; i++) { - if (cinfo->quant_tbl_ptrs[i] != NULL) - (void) emit_dqt(cinfo, i); - } - - if (! cinfo->arith_code) { - for (i = 0; i < NUM_HUFF_TBLS; i++) { - if (cinfo->dc_huff_tbl_ptrs[i] != NULL) - emit_dht(cinfo, i, FALSE); - if (cinfo->ac_huff_tbl_ptrs[i] != NULL) - emit_dht(cinfo, i, TRUE); - } - } - - emit_marker(cinfo, M_EOI); -} - - -/* - * Initialize the marker writer module. - */ - -GLOBAL(void) -jinit_marker_writer (j_compress_ptr cinfo) -{ - my_marker_ptr marker; - - /* Create the subobject */ - marker = (my_marker_ptr) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - SIZEOF(my_marker_writer)); - cinfo->marker = (struct jpeg_marker_writer *) marker; - /* Initialize method pointers */ - marker->pub.write_file_header = write_file_header; - marker->pub.write_frame_header = write_frame_header; - marker->pub.write_scan_header = write_scan_header; - marker->pub.write_file_trailer = write_file_trailer; - marker->pub.write_tables_only = write_tables_only; - marker->pub.write_marker_header = write_marker_header; - marker->pub.write_marker_byte = write_marker_byte; - /* Initialize private state */ - marker->last_restart_interval = 0; -} diff --git a/jpg/jcmaster.c b/jpg/jcmaster.c deleted file mode 100644 index caf80a5..0000000 --- a/jpg/jcmaster.c +++ /dev/null @@ -1,858 +0,0 @@ -/* - * jcmaster.c - * - * Copyright (C) 1991-1997, Thomas G. Lane. - * Modified 2003-2011 by Guido Vollbeding. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file contains master control logic for the JPEG compressor. - * These routines are concerned with parameter validation, initial setup, - * and inter-pass control (determining the number of passes and the work - * to be done in each pass). - */ - -#define JPEG_INTERNALS -#include "jinclude.h" -#include "jpeglib.h" - - -/* Private state */ - -typedef enum { - main_pass, /* input data, also do first output step */ - huff_opt_pass, /* Huffman code optimization pass */ - output_pass /* data output pass */ -} c_pass_type; - -typedef struct { - struct jpeg_comp_master pub; /* public fields */ - - c_pass_type pass_type; /* the type of the current pass */ - - int pass_number; /* # of passes completed */ - int total_passes; /* total # of passes needed */ - - int scan_number; /* current index in scan_info[] */ -} my_comp_master; - -typedef my_comp_master * my_master_ptr; - - -/* - * Support routines that do various essential calculations. - */ - -/* - * Compute JPEG image dimensions and related values. - * NOTE: this is exported for possible use by application. - * Hence it mustn't do anything that can't be done twice. - */ - -GLOBAL(void) -jpeg_calc_jpeg_dimensions (j_compress_ptr cinfo) -/* Do computations that are needed before master selection phase */ -{ -#ifdef DCT_SCALING_SUPPORTED - - /* Sanity check on input image dimensions to prevent overflow in - * following calculation. - * We do check jpeg_width and jpeg_height in initial_setup below, - * but image_width and image_height can come from arbitrary data, - * and we need some space for multiplication by block_size. - */ - if (((long) cinfo->image_width >> 24) || ((long) cinfo->image_height >> 24)) - ERREXIT1(cinfo, JERR_IMAGE_TOO_BIG, (unsigned int) JPEG_MAX_DIMENSION); - - /* Compute actual JPEG image dimensions and DCT scaling choices. */ - if (cinfo->scale_num >= cinfo->scale_denom * cinfo->block_size) { - /* Provide block_size/1 scaling */ - cinfo->jpeg_width = cinfo->image_width * cinfo->block_size; - cinfo->jpeg_height = cinfo->image_height * cinfo->block_size; - cinfo->min_DCT_h_scaled_size = 1; - cinfo->min_DCT_v_scaled_size = 1; - } else if (cinfo->scale_num * 2 >= cinfo->scale_denom * cinfo->block_size) { - /* Provide block_size/2 scaling */ - cinfo->jpeg_width = (JDIMENSION) - jdiv_round_up((long) cinfo->image_width * cinfo->block_size, 2L); - cinfo->jpeg_height = (JDIMENSION) - jdiv_round_up((long) cinfo->image_height * cinfo->block_size, 2L); - cinfo->min_DCT_h_scaled_size = 2; - cinfo->min_DCT_v_scaled_size = 2; - } else if (cinfo->scale_num * 3 >= cinfo->scale_denom * cinfo->block_size) { - /* Provide block_size/3 scaling */ - cinfo->jpeg_width = (JDIMENSION) - jdiv_round_up((long) cinfo->image_width * cinfo->block_size, 3L); - cinfo->jpeg_height = (JDIMENSION) - jdiv_round_up((long) cinfo->image_height * cinfo->block_size, 3L); - cinfo->min_DCT_h_scaled_size = 3; - cinfo->min_DCT_v_scaled_size = 3; - } else if (cinfo->scale_num * 4 >= cinfo->scale_denom * cinfo->block_size) { - /* Provide block_size/4 scaling */ - cinfo->jpeg_width = (JDIMENSION) - jdiv_round_up((long) cinfo->image_width * cinfo->block_size, 4L); - cinfo->jpeg_height = (JDIMENSION) - jdiv_round_up((long) cinfo->image_height * cinfo->block_size, 4L); - cinfo->min_DCT_h_scaled_size = 4; - cinfo->min_DCT_v_scaled_size = 4; - } else if (cinfo->scale_num * 5 >= cinfo->scale_denom * cinfo->block_size) { - /* Provide block_size/5 scaling */ - cinfo->jpeg_width = (JDIMENSION) - jdiv_round_up((long) cinfo->image_width * cinfo->block_size, 5L); - cinfo->jpeg_height = (JDIMENSION) - jdiv_round_up((long) cinfo->image_height * cinfo->block_size, 5L); - cinfo->min_DCT_h_scaled_size = 5; - cinfo->min_DCT_v_scaled_size = 5; - } else if (cinfo->scale_num * 6 >= cinfo->scale_denom * cinfo->block_size) { - /* Provide block_size/6 scaling */ - cinfo->jpeg_width = (JDIMENSION) - jdiv_round_up((long) cinfo->image_width * cinfo->block_size, 6L); - cinfo->jpeg_height = (JDIMENSION) - jdiv_round_up((long) cinfo->image_height * cinfo->block_size, 6L); - cinfo->min_DCT_h_scaled_size = 6; - cinfo->min_DCT_v_scaled_size = 6; - } else if (cinfo->scale_num * 7 >= cinfo->scale_denom * cinfo->block_size) { - /* Provide block_size/7 scaling */ - cinfo->jpeg_width = (JDIMENSION) - jdiv_round_up((long) cinfo->image_width * cinfo->block_size, 7L); - cinfo->jpeg_height = (JDIMENSION) - jdiv_round_up((long) cinfo->image_height * cinfo->block_size, 7L); - cinfo->min_DCT_h_scaled_size = 7; - cinfo->min_DCT_v_scaled_size = 7; - } else if (cinfo->scale_num * 8 >= cinfo->scale_denom * cinfo->block_size) { - /* Provide block_size/8 scaling */ - cinfo->jpeg_width = (JDIMENSION) - jdiv_round_up((long) cinfo->image_width * cinfo->block_size, 8L); - cinfo->jpeg_height = (JDIMENSION) - jdiv_round_up((long) cinfo->image_height * cinfo->block_size, 8L); - cinfo->min_DCT_h_scaled_size = 8; - cinfo->min_DCT_v_scaled_size = 8; - } else if (cinfo->scale_num * 9 >= cinfo->scale_denom * cinfo->block_size) { - /* Provide block_size/9 scaling */ - cinfo->jpeg_width = (JDIMENSION) - jdiv_round_up((long) cinfo->image_width * cinfo->block_size, 9L); - cinfo->jpeg_height = (JDIMENSION) - jdiv_round_up((long) cinfo->image_height * cinfo->block_size, 9L); - cinfo->min_DCT_h_scaled_size = 9; - cinfo->min_DCT_v_scaled_size = 9; - } else if (cinfo->scale_num * 10 >= cinfo->scale_denom * cinfo->block_size) { - /* Provide block_size/10 scaling */ - cinfo->jpeg_width = (JDIMENSION) - jdiv_round_up((long) cinfo->image_width * cinfo->block_size, 10L); - cinfo->jpeg_height = (JDIMENSION) - jdiv_round_up((long) cinfo->image_height * cinfo->block_size, 10L); - cinfo->min_DCT_h_scaled_size = 10; - cinfo->min_DCT_v_scaled_size = 10; - } else if (cinfo->scale_num * 11 >= cinfo->scale_denom * cinfo->block_size) { - /* Provide block_size/11 scaling */ - cinfo->jpeg_width = (JDIMENSION) - jdiv_round_up((long) cinfo->image_width * cinfo->block_size, 11L); - cinfo->jpeg_height = (JDIMENSION) - jdiv_round_up((long) cinfo->image_height * cinfo->block_size, 11L); - cinfo->min_DCT_h_scaled_size = 11; - cinfo->min_DCT_v_scaled_size = 11; - } else if (cinfo->scale_num * 12 >= cinfo->scale_denom * cinfo->block_size) { - /* Provide block_size/12 scaling */ - cinfo->jpeg_width = (JDIMENSION) - jdiv_round_up((long) cinfo->image_width * cinfo->block_size, 12L); - cinfo->jpeg_height = (JDIMENSION) - jdiv_round_up((long) cinfo->image_height * cinfo->block_size, 12L); - cinfo->min_DCT_h_scaled_size = 12; - cinfo->min_DCT_v_scaled_size = 12; - } else if (cinfo->scale_num * 13 >= cinfo->scale_denom * cinfo->block_size) { - /* Provide block_size/13 scaling */ - cinfo->jpeg_width = (JDIMENSION) - jdiv_round_up((long) cinfo->image_width * cinfo->block_size, 13L); - cinfo->jpeg_height = (JDIMENSION) - jdiv_round_up((long) cinfo->image_height * cinfo->block_size, 13L); - cinfo->min_DCT_h_scaled_size = 13; - cinfo->min_DCT_v_scaled_size = 13; - } else if (cinfo->scale_num * 14 >= cinfo->scale_denom * cinfo->block_size) { - /* Provide block_size/14 scaling */ - cinfo->jpeg_width = (JDIMENSION) - jdiv_round_up((long) cinfo->image_width * cinfo->block_size, 14L); - cinfo->jpeg_height = (JDIMENSION) - jdiv_round_up((long) cinfo->image_height * cinfo->block_size, 14L); - cinfo->min_DCT_h_scaled_size = 14; - cinfo->min_DCT_v_scaled_size = 14; - } else if (cinfo->scale_num * 15 >= cinfo->scale_denom * cinfo->block_size) { - /* Provide block_size/15 scaling */ - cinfo->jpeg_width = (JDIMENSION) - jdiv_round_up((long) cinfo->image_width * cinfo->block_size, 15L); - cinfo->jpeg_height = (JDIMENSION) - jdiv_round_up((long) cinfo->image_height * cinfo->block_size, 15L); - cinfo->min_DCT_h_scaled_size = 15; - cinfo->min_DCT_v_scaled_size = 15; - } else { - /* Provide block_size/16 scaling */ - cinfo->jpeg_width = (JDIMENSION) - jdiv_round_up((long) cinfo->image_width * cinfo->block_size, 16L); - cinfo->jpeg_height = (JDIMENSION) - jdiv_round_up((long) cinfo->image_height * cinfo->block_size, 16L); - cinfo->min_DCT_h_scaled_size = 16; - cinfo->min_DCT_v_scaled_size = 16; - } - -#else /* !DCT_SCALING_SUPPORTED */ - - /* Hardwire it to "no scaling" */ - cinfo->jpeg_width = cinfo->image_width; - cinfo->jpeg_height = cinfo->image_height; - cinfo->min_DCT_h_scaled_size = DCTSIZE; - cinfo->min_DCT_v_scaled_size = DCTSIZE; - -#endif /* DCT_SCALING_SUPPORTED */ -} - - -LOCAL(void) -jpeg_calc_trans_dimensions (j_compress_ptr cinfo) -{ - if (cinfo->min_DCT_h_scaled_size != cinfo->min_DCT_v_scaled_size) - ERREXIT2(cinfo, JERR_BAD_DCTSIZE, - cinfo->min_DCT_h_scaled_size, cinfo->min_DCT_v_scaled_size); - - cinfo->block_size = cinfo->min_DCT_h_scaled_size; -} - - -LOCAL(void) -initial_setup (j_compress_ptr cinfo, boolean transcode_only) -/* Do computations that are needed before master selection phase */ -{ - int ci, ssize; - jpeg_component_info *compptr; - long samplesperrow; - JDIMENSION jd_samplesperrow; - - if (transcode_only) - jpeg_calc_trans_dimensions(cinfo); - else - jpeg_calc_jpeg_dimensions(cinfo); - - /* Sanity check on block_size */ - if (cinfo->block_size < 1 || cinfo->block_size > 16) - ERREXIT2(cinfo, JERR_BAD_DCTSIZE, cinfo->block_size, cinfo->block_size); - - /* Derive natural_order from block_size */ - switch (cinfo->block_size) { - case 2: cinfo->natural_order = jpeg_natural_order2; break; - case 3: cinfo->natural_order = jpeg_natural_order3; break; - case 4: cinfo->natural_order = jpeg_natural_order4; break; - case 5: cinfo->natural_order = jpeg_natural_order5; break; - case 6: cinfo->natural_order = jpeg_natural_order6; break; - case 7: cinfo->natural_order = jpeg_natural_order7; break; - default: cinfo->natural_order = jpeg_natural_order; break; - } - - /* Derive lim_Se from block_size */ - cinfo->lim_Se = cinfo->block_size < DCTSIZE ? - cinfo->block_size * cinfo->block_size - 1 : DCTSIZE2-1; - - /* Sanity check on image dimensions */ - if (cinfo->jpeg_height <= 0 || cinfo->jpeg_width <= 0 || - cinfo->num_components <= 0 || cinfo->input_components <= 0) - ERREXIT(cinfo, JERR_EMPTY_IMAGE); - - /* Make sure image isn't bigger than I can handle */ - if ((long) cinfo->jpeg_height > (long) JPEG_MAX_DIMENSION || - (long) cinfo->jpeg_width > (long) JPEG_MAX_DIMENSION) - ERREXIT1(cinfo, JERR_IMAGE_TOO_BIG, (unsigned int) JPEG_MAX_DIMENSION); - - /* Width of an input scanline must be representable as JDIMENSION. */ - samplesperrow = (long) cinfo->image_width * (long) cinfo->input_components; - jd_samplesperrow = (JDIMENSION) samplesperrow; - if ((long) jd_samplesperrow != samplesperrow) - ERREXIT(cinfo, JERR_WIDTH_OVERFLOW); - - /* For now, precision must match compiled-in value... */ - if (cinfo->data_precision != BITS_IN_JSAMPLE) - ERREXIT1(cinfo, JERR_BAD_PRECISION, cinfo->data_precision); - - /* Check that number of components won't exceed internal array sizes */ - if (cinfo->num_components > MAX_COMPONENTS) - ERREXIT2(cinfo, JERR_COMPONENT_COUNT, cinfo->num_components, - MAX_COMPONENTS); - - /* Compute maximum sampling factors; check factor validity */ - cinfo->max_h_samp_factor = 1; - cinfo->max_v_samp_factor = 1; - for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components; - ci++, compptr++) { - if (compptr->h_samp_factor<=0 || compptr->h_samp_factor>MAX_SAMP_FACTOR || - compptr->v_samp_factor<=0 || compptr->v_samp_factor>MAX_SAMP_FACTOR) - ERREXIT(cinfo, JERR_BAD_SAMPLING); - cinfo->max_h_samp_factor = MAX(cinfo->max_h_samp_factor, - compptr->h_samp_factor); - cinfo->max_v_samp_factor = MAX(cinfo->max_v_samp_factor, - compptr->v_samp_factor); - } - - /* Compute dimensions of components */ - for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components; - ci++, compptr++) { - /* Fill in the correct component_index value; don't rely on application */ - compptr->component_index = ci; - /* In selecting the actual DCT scaling for each component, we try to - * scale down the chroma components via DCT scaling rather than downsampling. - * This saves time if the downsampler gets to use 1:1 scaling. - * Note this code adapts subsampling ratios which are powers of 2. - */ - ssize = 1; -#ifdef DCT_SCALING_SUPPORTED - while (cinfo->min_DCT_h_scaled_size * ssize <= - (cinfo->do_fancy_downsampling ? DCTSIZE : DCTSIZE / 2) && - (cinfo->max_h_samp_factor % (compptr->h_samp_factor * ssize * 2)) == 0) { - ssize = ssize * 2; - } -#endif - compptr->DCT_h_scaled_size = cinfo->min_DCT_h_scaled_size * ssize; - ssize = 1; -#ifdef DCT_SCALING_SUPPORTED - while (cinfo->min_DCT_v_scaled_size * ssize <= - (cinfo->do_fancy_downsampling ? DCTSIZE : DCTSIZE / 2) && - (cinfo->max_v_samp_factor % (compptr->v_samp_factor * ssize * 2)) == 0) { - ssize = ssize * 2; - } -#endif - compptr->DCT_v_scaled_size = cinfo->min_DCT_v_scaled_size * ssize; - - /* We don't support DCT ratios larger than 2. */ - if (compptr->DCT_h_scaled_size > compptr->DCT_v_scaled_size * 2) - compptr->DCT_h_scaled_size = compptr->DCT_v_scaled_size * 2; - else if (compptr->DCT_v_scaled_size > compptr->DCT_h_scaled_size * 2) - compptr->DCT_v_scaled_size = compptr->DCT_h_scaled_size * 2; - - /* Size in DCT blocks */ - compptr->width_in_blocks = (JDIMENSION) - jdiv_round_up((long) cinfo->jpeg_width * (long) compptr->h_samp_factor, - (long) (cinfo->max_h_samp_factor * cinfo->block_size)); - compptr->height_in_blocks = (JDIMENSION) - jdiv_round_up((long) cinfo->jpeg_height * (long) compptr->v_samp_factor, - (long) (cinfo->max_v_samp_factor * cinfo->block_size)); - /* Size in samples */ - compptr->downsampled_width = (JDIMENSION) - jdiv_round_up((long) cinfo->jpeg_width * - (long) (compptr->h_samp_factor * compptr->DCT_h_scaled_size), - (long) (cinfo->max_h_samp_factor * cinfo->block_size)); - compptr->downsampled_height = (JDIMENSION) - jdiv_round_up((long) cinfo->jpeg_height * - (long) (compptr->v_samp_factor * compptr->DCT_v_scaled_size), - (long) (cinfo->max_v_samp_factor * cinfo->block_size)); - /* Mark component needed (this flag isn't actually used for compression) */ - compptr->component_needed = TRUE; - } - - /* Compute number of fully interleaved MCU rows (number of times that - * main controller will call coefficient controller). - */ - cinfo->total_iMCU_rows = (JDIMENSION) - jdiv_round_up((long) cinfo->jpeg_height, - (long) (cinfo->max_v_samp_factor * cinfo->block_size)); -} - - -#ifdef C_MULTISCAN_FILES_SUPPORTED - -LOCAL(void) -validate_script (j_compress_ptr cinfo) -/* Verify that the scan script in cinfo->scan_info[] is valid; also - * determine whether it uses progressive JPEG, and set cinfo->progressive_mode. - */ -{ - const jpeg_scan_info * scanptr; - int scanno, ncomps, ci, coefi, thisi; - int Ss, Se, Ah, Al; - boolean component_sent[MAX_COMPONENTS]; -#ifdef C_PROGRESSIVE_SUPPORTED - int * last_bitpos_ptr; - int last_bitpos[MAX_COMPONENTS][DCTSIZE2]; - /* -1 until that coefficient has been seen; then last Al for it */ -#endif - - if (cinfo->num_scans <= 0) - ERREXIT1(cinfo, JERR_BAD_SCAN_SCRIPT, 0); - - /* For sequential JPEG, all scans must have Ss=0, Se=DCTSIZE2-1; - * for progressive JPEG, no scan can have this. - */ - scanptr = cinfo->scan_info; - if (scanptr->Ss != 0 || scanptr->Se != DCTSIZE2-1) { -#ifdef C_PROGRESSIVE_SUPPORTED - cinfo->progressive_mode = TRUE; - last_bitpos_ptr = & last_bitpos[0][0]; - for (ci = 0; ci < cinfo->num_components; ci++) - for (coefi = 0; coefi < DCTSIZE2; coefi++) - *last_bitpos_ptr++ = -1; -#else - ERREXIT(cinfo, JERR_NOT_COMPILED); -#endif - } else { - cinfo->progressive_mode = FALSE; - for (ci = 0; ci < cinfo->num_components; ci++) - component_sent[ci] = FALSE; - } - - for (scanno = 1; scanno <= cinfo->num_scans; scanptr++, scanno++) { - /* Validate component indexes */ - ncomps = scanptr->comps_in_scan; - if (ncomps <= 0 || ncomps > MAX_COMPS_IN_SCAN) - ERREXIT2(cinfo, JERR_COMPONENT_COUNT, ncomps, MAX_COMPS_IN_SCAN); - for (ci = 0; ci < ncomps; ci++) { - thisi = scanptr->component_index[ci]; - if (thisi < 0 || thisi >= cinfo->num_components) - ERREXIT1(cinfo, JERR_BAD_SCAN_SCRIPT, scanno); - /* Components must appear in SOF order within each scan */ - if (ci > 0 && thisi <= scanptr->component_index[ci-1]) - ERREXIT1(cinfo, JERR_BAD_SCAN_SCRIPT, scanno); - } - /* Validate progression parameters */ - Ss = scanptr->Ss; - Se = scanptr->Se; - Ah = scanptr->Ah; - Al = scanptr->Al; - if (cinfo->progressive_mode) { -#ifdef C_PROGRESSIVE_SUPPORTED - /* The JPEG spec simply gives the ranges 0..13 for Ah and Al, but that - * seems wrong: the upper bound ought to depend on data precision. - * Perhaps they really meant 0..N+1 for N-bit precision. - * Here we allow 0..10 for 8-bit data; Al larger than 10 results in - * out-of-range reconstructed DC values during the first DC scan, - * which might cause problems for some decoders. - */ -#if BITS_IN_JSAMPLE == 8 -#define MAX_AH_AL 10 -#else -#define MAX_AH_AL 13 -#endif - if (Ss < 0 || Ss >= DCTSIZE2 || Se < Ss || Se >= DCTSIZE2 || - Ah < 0 || Ah > MAX_AH_AL || Al < 0 || Al > MAX_AH_AL) - ERREXIT1(cinfo, JERR_BAD_PROG_SCRIPT, scanno); - if (Ss == 0) { - if (Se != 0) /* DC and AC together not OK */ - ERREXIT1(cinfo, JERR_BAD_PROG_SCRIPT, scanno); - } else { - if (ncomps != 1) /* AC scans must be for only one component */ - ERREXIT1(cinfo, JERR_BAD_PROG_SCRIPT, scanno); - } - for (ci = 0; ci < ncomps; ci++) { - last_bitpos_ptr = & last_bitpos[scanptr->component_index[ci]][0]; - if (Ss != 0 && last_bitpos_ptr[0] < 0) /* AC without prior DC scan */ - ERREXIT1(cinfo, JERR_BAD_PROG_SCRIPT, scanno); - for (coefi = Ss; coefi <= Se; coefi++) { - if (last_bitpos_ptr[coefi] < 0) { - /* first scan of this coefficient */ - if (Ah != 0) - ERREXIT1(cinfo, JERR_BAD_PROG_SCRIPT, scanno); - } else { - /* not first scan */ - if (Ah != last_bitpos_ptr[coefi] || Al != Ah-1) - ERREXIT1(cinfo, JERR_BAD_PROG_SCRIPT, scanno); - } - last_bitpos_ptr[coefi] = Al; - } - } -#endif - } else { - /* For sequential JPEG, all progression parameters must be these: */ - if (Ss != 0 || Se != DCTSIZE2-1 || Ah != 0 || Al != 0) - ERREXIT1(cinfo, JERR_BAD_PROG_SCRIPT, scanno); - /* Make sure components are not sent twice */ - for (ci = 0; ci < ncomps; ci++) { - thisi = scanptr->component_index[ci]; - if (component_sent[thisi]) - ERREXIT1(cinfo, JERR_BAD_SCAN_SCRIPT, scanno); - component_sent[thisi] = TRUE; - } - } - } - - /* Now verify that everything got sent. */ - if (cinfo->progressive_mode) { -#ifdef C_PROGRESSIVE_SUPPORTED - /* For progressive mode, we only check that at least some DC data - * got sent for each component; the spec does not require that all bits - * of all coefficients be transmitted. Would it be wiser to enforce - * transmission of all coefficient bits?? - */ - for (ci = 0; ci < cinfo->num_components; ci++) { - if (last_bitpos[ci][0] < 0) - ERREXIT(cinfo, JERR_MISSING_DATA); - } -#endif - } else { - for (ci = 0; ci < cinfo->num_components; ci++) { - if (! component_sent[ci]) - ERREXIT(cinfo, JERR_MISSING_DATA); - } - } -} - - -LOCAL(void) -reduce_script (j_compress_ptr cinfo) -/* Adapt scan script for use with reduced block size; - * assume that script has been validated before. - */ -{ - jpeg_scan_info * scanptr; - int idxout, idxin; - - /* Circumvent const declaration for this function */ - scanptr = (jpeg_scan_info *) cinfo->scan_info; - idxout = 0; - - for (idxin = 0; idxin < cinfo->num_scans; idxin++) { - /* After skipping, idxout becomes smaller than idxin */ - if (idxin != idxout) - /* Copy rest of data; - * note we stay in given chunk of allocated memory. - */ - scanptr[idxout] = scanptr[idxin]; - if (scanptr[idxout].Ss > cinfo->lim_Se) - /* Entire scan out of range - skip this entry */ - continue; - if (scanptr[idxout].Se > cinfo->lim_Se) - /* Limit scan to end of block */ - scanptr[idxout].Se = cinfo->lim_Se; - idxout++; - } - - cinfo->num_scans = idxout; -} - -#endif /* C_MULTISCAN_FILES_SUPPORTED */ - - -LOCAL(void) -select_scan_parameters (j_compress_ptr cinfo) -/* Set up the scan parameters for the current scan */ -{ - int ci; - -#ifdef C_MULTISCAN_FILES_SUPPORTED - if (cinfo->scan_info != NULL) { - /* Prepare for current scan --- the script is already validated */ - my_master_ptr master = (my_master_ptr) cinfo->master; - const jpeg_scan_info * scanptr = cinfo->scan_info + master->scan_number; - - cinfo->comps_in_scan = scanptr->comps_in_scan; - for (ci = 0; ci < scanptr->comps_in_scan; ci++) { - cinfo->cur_comp_info[ci] = - &cinfo->comp_info[scanptr->component_index[ci]]; - } - if (cinfo->progressive_mode) { - cinfo->Ss = scanptr->Ss; - cinfo->Se = scanptr->Se; - cinfo->Ah = scanptr->Ah; - cinfo->Al = scanptr->Al; - return; - } - } - else -#endif - { - /* Prepare for single sequential-JPEG scan containing all components */ - if (cinfo->num_components > MAX_COMPS_IN_SCAN) - ERREXIT2(cinfo, JERR_COMPONENT_COUNT, cinfo->num_components, - MAX_COMPS_IN_SCAN); - cinfo->comps_in_scan = cinfo->num_components; - for (ci = 0; ci < cinfo->num_components; ci++) { - cinfo->cur_comp_info[ci] = &cinfo->comp_info[ci]; - } - } - cinfo->Ss = 0; - cinfo->Se = cinfo->block_size * cinfo->block_size - 1; - cinfo->Ah = 0; - cinfo->Al = 0; -} - - -LOCAL(void) -per_scan_setup (j_compress_ptr cinfo) -/* Do computations that are needed before processing a JPEG scan */ -/* cinfo->comps_in_scan and cinfo->cur_comp_info[] are already set */ -{ - int ci, mcublks, tmp; - jpeg_component_info *compptr; - - if (cinfo->comps_in_scan == 1) { - - /* Noninterleaved (single-component) scan */ - compptr = cinfo->cur_comp_info[0]; - - /* Overall image size in MCUs */ - cinfo->MCUs_per_row = compptr->width_in_blocks; - cinfo->MCU_rows_in_scan = compptr->height_in_blocks; - - /* For noninterleaved scan, always one block per MCU */ - compptr->MCU_width = 1; - compptr->MCU_height = 1; - compptr->MCU_blocks = 1; - compptr->MCU_sample_width = compptr->DCT_h_scaled_size; - compptr->last_col_width = 1; - /* For noninterleaved scans, it is convenient to define last_row_height - * as the number of block rows present in the last iMCU row. - */ - tmp = (int) (compptr->height_in_blocks % compptr->v_samp_factor); - if (tmp == 0) tmp = compptr->v_samp_factor; - compptr->last_row_height = tmp; - - /* Prepare array describing MCU composition */ - cinfo->blocks_in_MCU = 1; - cinfo->MCU_membership[0] = 0; - - } else { - - /* Interleaved (multi-component) scan */ - if (cinfo->comps_in_scan <= 0 || cinfo->comps_in_scan > MAX_COMPS_IN_SCAN) - ERREXIT2(cinfo, JERR_COMPONENT_COUNT, cinfo->comps_in_scan, - MAX_COMPS_IN_SCAN); - - /* Overall image size in MCUs */ - cinfo->MCUs_per_row = (JDIMENSION) - jdiv_round_up((long) cinfo->jpeg_width, - (long) (cinfo->max_h_samp_factor * cinfo->block_size)); - cinfo->MCU_rows_in_scan = (JDIMENSION) - jdiv_round_up((long) cinfo->jpeg_height, - (long) (cinfo->max_v_samp_factor * cinfo->block_size)); - - cinfo->blocks_in_MCU = 0; - - for (ci = 0; ci < cinfo->comps_in_scan; ci++) { - compptr = cinfo->cur_comp_info[ci]; - /* Sampling factors give # of blocks of component in each MCU */ - compptr->MCU_width = compptr->h_samp_factor; - compptr->MCU_height = compptr->v_samp_factor; - compptr->MCU_blocks = compptr->MCU_width * compptr->MCU_height; - compptr->MCU_sample_width = compptr->MCU_width * compptr->DCT_h_scaled_size; - /* Figure number of non-dummy blocks in last MCU column & row */ - tmp = (int) (compptr->width_in_blocks % compptr->MCU_width); - if (tmp == 0) tmp = compptr->MCU_width; - compptr->last_col_width = tmp; - tmp = (int) (compptr->height_in_blocks % compptr->MCU_height); - if (tmp == 0) tmp = compptr->MCU_height; - compptr->last_row_height = tmp; - /* Prepare array describing MCU composition */ - mcublks = compptr->MCU_blocks; - if (cinfo->blocks_in_MCU + mcublks > C_MAX_BLOCKS_IN_MCU) - ERREXIT(cinfo, JERR_BAD_MCU_SIZE); - while (mcublks-- > 0) { - cinfo->MCU_membership[cinfo->blocks_in_MCU++] = ci; - } - } - - } - - /* Convert restart specified in rows to actual MCU count. */ - /* Note that count must fit in 16 bits, so we provide limiting. */ - if (cinfo->restart_in_rows > 0) { - long nominal = (long) cinfo->restart_in_rows * (long) cinfo->MCUs_per_row; - cinfo->restart_interval = (unsigned int) MIN(nominal, 65535L); - } -} - - -/* - * Per-pass setup. - * This is called at the beginning of each pass. We determine which modules - * will be active during this pass and give them appropriate start_pass calls. - * We also set is_last_pass to indicate whether any more passes will be - * required. - */ - -METHODDEF(void) -prepare_for_pass (j_compress_ptr cinfo) -{ - my_master_ptr master = (my_master_ptr) cinfo->master; - - switch (master->pass_type) { - case main_pass: - /* Initial pass: will collect input data, and do either Huffman - * optimization or data output for the first scan. - */ - select_scan_parameters(cinfo); - per_scan_setup(cinfo); - if (! cinfo->raw_data_in) { - (*cinfo->cconvert->start_pass) (cinfo); - (*cinfo->downsample->start_pass) (cinfo); - (*cinfo->prep->start_pass) (cinfo, JBUF_PASS_THRU); - } - (*cinfo->fdct->start_pass) (cinfo); - (*cinfo->entropy->start_pass) (cinfo, cinfo->optimize_coding); - (*cinfo->coef->start_pass) (cinfo, - (master->total_passes > 1 ? - JBUF_SAVE_AND_PASS : JBUF_PASS_THRU)); - (*cinfo->main->start_pass) (cinfo, JBUF_PASS_THRU); - if (cinfo->optimize_coding) { - /* No immediate data output; postpone writing frame/scan headers */ - master->pub.call_pass_startup = FALSE; - } else { - /* Will write frame/scan headers at first jpeg_write_scanlines call */ - master->pub.call_pass_startup = TRUE; - } - break; -#ifdef ENTROPY_OPT_SUPPORTED - case huff_opt_pass: - /* Do Huffman optimization for a scan after the first one. */ - select_scan_parameters(cinfo); - per_scan_setup(cinfo); - if (cinfo->Ss != 0 || cinfo->Ah == 0) { - (*cinfo->entropy->start_pass) (cinfo, TRUE); - (*cinfo->coef->start_pass) (cinfo, JBUF_CRANK_DEST); - master->pub.call_pass_startup = FALSE; - break; - } - /* Special case: Huffman DC refinement scans need no Huffman table - * and therefore we can skip the optimization pass for them. - */ - master->pass_type = output_pass; - master->pass_number++; - /*FALLTHROUGH*/ -#endif - case output_pass: - /* Do a data-output pass. */ - /* We need not repeat per-scan setup if prior optimization pass did it. */ - if (! cinfo->optimize_coding) { - select_scan_parameters(cinfo); - per_scan_setup(cinfo); - } - (*cinfo->entropy->start_pass) (cinfo, FALSE); - (*cinfo->coef->start_pass) (cinfo, JBUF_CRANK_DEST); - /* We emit frame/scan headers now */ - if (master->scan_number == 0) - (*cinfo->marker->write_frame_header) (cinfo); - (*cinfo->marker->write_scan_header) (cinfo); - master->pub.call_pass_startup = FALSE; - break; - default: - ERREXIT(cinfo, JERR_NOT_COMPILED); - } - - master->pub.is_last_pass = (master->pass_number == master->total_passes-1); - - /* Set up progress monitor's pass info if present */ - if (cinfo->progress != NULL) { - cinfo->progress->completed_passes = master->pass_number; - cinfo->progress->total_passes = master->total_passes; - } -} - - -/* - * Special start-of-pass hook. - * This is called by jpeg_write_scanlines if call_pass_startup is TRUE. - * In single-pass processing, we need this hook because we don't want to - * write frame/scan headers during jpeg_start_compress; we want to let the - * application write COM markers etc. between jpeg_start_compress and the - * jpeg_write_scanlines loop. - * In multi-pass processing, this routine is not used. - */ - -METHODDEF(void) -pass_startup (j_compress_ptr cinfo) -{ - cinfo->master->call_pass_startup = FALSE; /* reset flag so call only once */ - - (*cinfo->marker->write_frame_header) (cinfo); - (*cinfo->marker->write_scan_header) (cinfo); -} - - -/* - * Finish up at end of pass. - */ - -METHODDEF(void) -finish_pass_master (j_compress_ptr cinfo) -{ - my_master_ptr master = (my_master_ptr) cinfo->master; - - /* The entropy coder always needs an end-of-pass call, - * either to analyze statistics or to flush its output buffer. - */ - (*cinfo->entropy->finish_pass) (cinfo); - - /* Update state for next pass */ - switch (master->pass_type) { - case main_pass: - /* next pass is either output of scan 0 (after optimization) - * or output of scan 1 (if no optimization). - */ - master->pass_type = output_pass; - if (! cinfo->optimize_coding) - master->scan_number++; - break; - case huff_opt_pass: - /* next pass is always output of current scan */ - master->pass_type = output_pass; - break; - case output_pass: - /* next pass is either optimization or output of next scan */ - if (cinfo->optimize_coding) - master->pass_type = huff_opt_pass; - master->scan_number++; - break; - } - - master->pass_number++; -} - - -/* - * Initialize master compression control. - */ - -GLOBAL(void) -jinit_c_master_control (j_compress_ptr cinfo, boolean transcode_only) -{ - my_master_ptr master; - - master = (my_master_ptr) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - SIZEOF(my_comp_master)); - cinfo->master = (struct jpeg_comp_master *) master; - master->pub.prepare_for_pass = prepare_for_pass; - master->pub.pass_startup = pass_startup; - master->pub.finish_pass = finish_pass_master; - master->pub.is_last_pass = FALSE; - - /* Validate parameters, determine derived values */ - initial_setup(cinfo, transcode_only); - - if (cinfo->scan_info != NULL) { -#ifdef C_MULTISCAN_FILES_SUPPORTED - validate_script(cinfo); - if (cinfo->block_size < DCTSIZE) - reduce_script(cinfo); -#else - ERREXIT(cinfo, JERR_NOT_COMPILED); -#endif - } else { - cinfo->progressive_mode = FALSE; - cinfo->num_scans = 1; - } - - if ((cinfo->progressive_mode || cinfo->block_size < DCTSIZE) && - !cinfo->arith_code) /* TEMPORARY HACK ??? */ - /* assume default tables no good for progressive or downscale mode */ - cinfo->optimize_coding = TRUE; - - /* Initialize my private state */ - if (transcode_only) { - /* no main pass in transcoding */ - if (cinfo->optimize_coding) - master->pass_type = huff_opt_pass; - else - master->pass_type = output_pass; - } else { - /* for normal compression, first pass is always this type: */ - master->pass_type = main_pass; - } - master->scan_number = 0; - master->pass_number = 0; - if (cinfo->optimize_coding) - master->total_passes = cinfo->num_scans * 2; - else - master->total_passes = cinfo->num_scans; -} diff --git a/jpg/jcomapi.c b/jpg/jcomapi.c deleted file mode 100644 index 9b1fa75..0000000 --- a/jpg/jcomapi.c +++ /dev/null @@ -1,106 +0,0 @@ -/* - * jcomapi.c - * - * Copyright (C) 1994-1997, Thomas G. Lane. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file contains application interface routines that are used for both - * compression and decompression. - */ - -#define JPEG_INTERNALS -#include "jinclude.h" -#include "jpeglib.h" - - -/* - * Abort processing of a JPEG compression or decompression operation, - * but don't destroy the object itself. - * - * For this, we merely clean up all the nonpermanent memory pools. - * Note that temp files (virtual arrays) are not allowed to belong to - * the permanent pool, so we will be able to close all temp files here. - * Closing a data source or destination, if necessary, is the application's - * responsibility. - */ - -GLOBAL(void) -jpeg_abort (j_common_ptr cinfo) -{ - int pool; - - /* Do nothing if called on a not-initialized or destroyed JPEG object. */ - if (cinfo->mem == NULL) - return; - - /* Releasing pools in reverse order might help avoid fragmentation - * with some (brain-damaged) malloc libraries. - */ - for (pool = JPOOL_NUMPOOLS-1; pool > JPOOL_PERMANENT; pool--) { - (*cinfo->mem->free_pool) (cinfo, pool); - } - - /* Reset overall state for possible reuse of object */ - if (cinfo->is_decompressor) { - cinfo->global_state = DSTATE_START; - /* Try to keep application from accessing now-deleted marker list. - * A bit kludgy to do it here, but this is the most central place. - */ - ((j_decompress_ptr) cinfo)->marker_list = NULL; - } else { - cinfo->global_state = CSTATE_START; - } -} - - -/* - * Destruction of a JPEG object. - * - * Everything gets deallocated except the master jpeg_compress_struct itself - * and the error manager struct. Both of these are supplied by the application - * and must be freed, if necessary, by the application. (Often they are on - * the stack and so don't need to be freed anyway.) - * Closing a data source or destination, if necessary, is the application's - * responsibility. - */ - -GLOBAL(void) -jpeg_destroy (j_common_ptr cinfo) -{ - /* We need only tell the memory manager to release everything. */ - /* NB: mem pointer is NULL if memory mgr failed to initialize. */ - if (cinfo->mem != NULL) - (*cinfo->mem->self_destruct) (cinfo); - cinfo->mem = NULL; /* be safe if jpeg_destroy is called twice */ - cinfo->global_state = 0; /* mark it destroyed */ -} - - -/* - * Convenience routines for allocating quantization and Huffman tables. - * (Would jutils.c be a more reasonable place to put these?) - */ - -GLOBAL(JQUANT_TBL *) -jpeg_alloc_quant_table (j_common_ptr cinfo) -{ - JQUANT_TBL *tbl; - - tbl = (JQUANT_TBL *) - (*cinfo->mem->alloc_small) (cinfo, JPOOL_PERMANENT, SIZEOF(JQUANT_TBL)); - tbl->sent_table = FALSE; /* make sure this is false in any new table */ - return tbl; -} - - -GLOBAL(JHUFF_TBL *) -jpeg_alloc_huff_table (j_common_ptr cinfo) -{ - JHUFF_TBL *tbl; - - tbl = (JHUFF_TBL *) - (*cinfo->mem->alloc_small) (cinfo, JPOOL_PERMANENT, SIZEOF(JHUFF_TBL)); - tbl->sent_table = FALSE; /* make sure this is false in any new table */ - return tbl; -} diff --git a/jpg/jconfig.bcc b/jpg/jconfig.bcc deleted file mode 100644 index e4da3d7..0000000 --- a/jpg/jconfig.bcc +++ /dev/null @@ -1,48 +0,0 @@ -/* jconfig.bcc --- jconfig.h for Borland C (Turbo C) on MS-DOS or OS/2. */ -/* see jconfig.txt for explanations */ - -#define HAVE_PROTOTYPES -#define HAVE_UNSIGNED_CHAR -#define HAVE_UNSIGNED_SHORT -/* #define void char */ -/* #define const */ -#undef CHAR_IS_UNSIGNED -#define HAVE_STDDEF_H -#define HAVE_STDLIB_H -#undef NEED_BSD_STRINGS -#undef NEED_SYS_TYPES_H -#ifdef __MSDOS__ -#define NEED_FAR_POINTERS /* for small or medium memory model */ -#endif -#undef NEED_SHORT_EXTERNAL_NAMES -#undef INCOMPLETE_TYPES_BROKEN /* this assumes you have -w-stu in CFLAGS */ - -#ifdef JPEG_INTERNALS - -#undef RIGHT_SHIFT_IS_UNSIGNED - -#ifdef __MSDOS__ -#define USE_MSDOS_MEMMGR /* Define this if you use jmemdos.c */ -#define MAX_ALLOC_CHUNK 65520L /* Maximum request to malloc() */ -#define USE_FMEM /* Borland has _fmemcpy() and _fmemset() */ -#endif - -#endif /* JPEG_INTERNALS */ - -#ifdef JPEG_CJPEG_DJPEG - -#define BMP_SUPPORTED /* BMP image file format */ -#define GIF_SUPPORTED /* GIF image file format */ -#define PPM_SUPPORTED /* PBMPLUS PPM/PGM image file format */ -#undef RLE_SUPPORTED /* Utah RLE image file format */ -#define TARGA_SUPPORTED /* Targa image file format */ - -#define TWO_FILE_COMMANDLINE -#define USE_SETMODE /* Borland has setmode() */ -#ifdef __MSDOS__ -#define NEED_SIGNAL_CATCHER /* Define this if you use jmemdos.c */ -#endif -#undef DONT_USE_B_MODE -#undef PROGRESS_REPORT /* optional */ - -#endif /* JPEG_CJPEG_DJPEG */ diff --git a/jpg/jconfig.cfg b/jpg/jconfig.cfg deleted file mode 100644 index 5269eb3..0000000 --- a/jpg/jconfig.cfg +++ /dev/null @@ -1,53 +0,0 @@ -/* jconfig.cfg --- source file edited by configure script */ -/* see jconfig.txt for explanations */ - -#undef HAVE_PROTOTYPES -#undef HAVE_UNSIGNED_CHAR -#undef HAVE_UNSIGNED_SHORT -#undef void -#undef const -#undef CHAR_IS_UNSIGNED -#undef HAVE_STDDEF_H -#undef HAVE_STDLIB_H -#undef HAVE_LOCALE_H -#undef NEED_BSD_STRINGS -#undef NEED_SYS_TYPES_H -#undef NEED_FAR_POINTERS -#undef NEED_SHORT_EXTERNAL_NAMES -/* Define this if you get warnings about undefined structures. */ -#undef INCOMPLETE_TYPES_BROKEN - -/* Define "boolean" as unsigned char, not int, on Windows systems. */ -#ifdef _WIN32 -#ifndef __RPCNDR_H__ /* don't conflict if rpcndr.h already read */ -typedef unsigned char boolean; -#endif -#define HAVE_BOOLEAN /* prevent jmorecfg.h from redefining it */ -#endif - -#ifdef JPEG_INTERNALS - -#undef RIGHT_SHIFT_IS_UNSIGNED -#undef INLINE -/* These are for configuring the JPEG memory manager. */ -#undef DEFAULT_MAX_MEM -#undef NO_MKTEMP - -#endif /* JPEG_INTERNALS */ - -#ifdef JPEG_CJPEG_DJPEG - -#undef BMP_SUPPORTED /* BMP image file format */ -#undef GIF_SUPPORTED /* GIF image file format */ -#undef PPM_SUPPORTED /* PBMPLUS PPM/PGM image file format */ -#undef RLE_SUPPORTED /* Utah RLE image file format */ -#undef TARGA_SUPPORTED /* Targa image file format */ - -#undef TWO_FILE_COMMANDLINE -#undef NEED_SIGNAL_CATCHER -#undef DONT_USE_B_MODE - -/* Define this if you want percent-done progress reports from cjpeg/djpeg. */ -#undef PROGRESS_REPORT - -#endif /* JPEG_CJPEG_DJPEG */ diff --git a/jpg/jconfig.dj b/jpg/jconfig.dj deleted file mode 100644 index a0d4092..0000000 --- a/jpg/jconfig.dj +++ /dev/null @@ -1,38 +0,0 @@ -/* jconfig.dj --- jconfig.h for DJGPP (Delorie's GNU C port) on MS-DOS. */ -/* see jconfig.txt for explanations */ - -#define HAVE_PROTOTYPES -#define HAVE_UNSIGNED_CHAR -#define HAVE_UNSIGNED_SHORT -/* #define void char */ -/* #define const */ -#undef CHAR_IS_UNSIGNED -#define HAVE_STDDEF_H -#define HAVE_STDLIB_H -#undef NEED_BSD_STRINGS -#undef NEED_SYS_TYPES_H -#undef NEED_FAR_POINTERS /* DJGPP uses flat 32-bit addressing */ -#undef NEED_SHORT_EXTERNAL_NAMES -#undef INCOMPLETE_TYPES_BROKEN - -#ifdef JPEG_INTERNALS - -#undef RIGHT_SHIFT_IS_UNSIGNED - -#endif /* JPEG_INTERNALS */ - -#ifdef JPEG_CJPEG_DJPEG - -#define BMP_SUPPORTED /* BMP image file format */ -#define GIF_SUPPORTED /* GIF image file format */ -#define PPM_SUPPORTED /* PBMPLUS PPM/PGM image file format */ -#undef RLE_SUPPORTED /* Utah RLE image file format */ -#define TARGA_SUPPORTED /* Targa image file format */ - -#undef TWO_FILE_COMMANDLINE /* optional */ -#define USE_SETMODE /* Needed to make one-file style work in DJGPP */ -#undef NEED_SIGNAL_CATCHER /* Define this if you use jmemname.c */ -#undef DONT_USE_B_MODE -#undef PROGRESS_REPORT /* optional */ - -#endif /* JPEG_CJPEG_DJPEG */ diff --git a/jpg/jconfig.mac b/jpg/jconfig.mac deleted file mode 100644 index 70ed66c..0000000 --- a/jpg/jconfig.mac +++ /dev/null @@ -1,43 +0,0 @@ -/* jconfig.mac --- jconfig.h for CodeWarrior on Apple Macintosh */ -/* see jconfig.txt for explanations */ - -#define HAVE_PROTOTYPES -#define HAVE_UNSIGNED_CHAR -#define HAVE_UNSIGNED_SHORT -/* #define void char */ -/* #define const */ -#undef CHAR_IS_UNSIGNED -#define HAVE_STDDEF_H -#define HAVE_STDLIB_H -#undef NEED_BSD_STRINGS -#undef NEED_SYS_TYPES_H -#undef NEED_FAR_POINTERS -#undef NEED_SHORT_EXTERNAL_NAMES -#undef INCOMPLETE_TYPES_BROKEN - -#ifdef JPEG_INTERNALS - -#undef RIGHT_SHIFT_IS_UNSIGNED - -#define USE_MAC_MEMMGR /* Define this if you use jmemmac.c */ - -#define ALIGN_TYPE long /* Needed for 680x0 Macs */ - -#endif /* JPEG_INTERNALS */ - -#ifdef JPEG_CJPEG_DJPEG - -#define BMP_SUPPORTED /* BMP image file format */ -#define GIF_SUPPORTED /* GIF image file format */ -#define PPM_SUPPORTED /* PBMPLUS PPM/PGM image file format */ -#undef RLE_SUPPORTED /* Utah RLE image file format */ -#define TARGA_SUPPORTED /* Targa image file format */ - -#define USE_CCOMMAND /* Command line reader for Macintosh */ -#define TWO_FILE_COMMANDLINE /* Binary I/O thru stdin/stdout doesn't work */ - -#undef NEED_SIGNAL_CATCHER -#undef DONT_USE_B_MODE -#undef PROGRESS_REPORT /* optional */ - -#endif /* JPEG_CJPEG_DJPEG */ diff --git a/jpg/jconfig.manx b/jpg/jconfig.manx deleted file mode 100644 index cd529d7..0000000 --- a/jpg/jconfig.manx +++ /dev/null @@ -1,43 +0,0 @@ -/* jconfig.manx --- jconfig.h for Amiga systems using Manx Aztec C ver 5.x. */ -/* see jconfig.txt for explanations */ - -#define HAVE_PROTOTYPES -#define HAVE_UNSIGNED_CHAR -#define HAVE_UNSIGNED_SHORT -/* #define void char */ -/* #define const */ -#undef CHAR_IS_UNSIGNED -#define HAVE_STDDEF_H -#define HAVE_STDLIB_H -#undef NEED_BSD_STRINGS -#undef NEED_SYS_TYPES_H -#undef NEED_FAR_POINTERS -#undef NEED_SHORT_EXTERNAL_NAMES -#undef INCOMPLETE_TYPES_BROKEN - -#ifdef JPEG_INTERNALS - -#undef RIGHT_SHIFT_IS_UNSIGNED - -#define TEMP_DIRECTORY "JPEGTMP:" /* recommended setting for Amiga */ - -#define SHORTxSHORT_32 /* produces better DCT code with Aztec C */ - -#endif /* JPEG_INTERNALS */ - -#ifdef JPEG_CJPEG_DJPEG - -#define BMP_SUPPORTED /* BMP image file format */ -#define GIF_SUPPORTED /* GIF image file format */ -#define PPM_SUPPORTED /* PBMPLUS PPM/PGM image file format */ -#undef RLE_SUPPORTED /* Utah RLE image file format */ -#define TARGA_SUPPORTED /* Targa image file format */ - -#define TWO_FILE_COMMANDLINE -#define NEED_SIGNAL_CATCHER -#undef DONT_USE_B_MODE -#undef PROGRESS_REPORT /* optional */ - -#define signal_catcher _abort /* hack for Aztec C naming requirements */ - -#endif /* JPEG_CJPEG_DJPEG */ diff --git a/jpg/jconfig.mc6 b/jpg/jconfig.mc6 deleted file mode 100644 index 6b05e81..0000000 --- a/jpg/jconfig.mc6 +++ /dev/null @@ -1,52 +0,0 @@ -/* jconfig.mc6 --- jconfig.h for Microsoft C on MS-DOS, version 6.00A & up. */ -/* see jconfig.txt for explanations */ - -#define HAVE_PROTOTYPES -#define HAVE_UNSIGNED_CHAR -#define HAVE_UNSIGNED_SHORT -/* #define void char */ -/* #define const */ -#undef CHAR_IS_UNSIGNED -#define HAVE_STDDEF_H -#define HAVE_STDLIB_H -#undef NEED_BSD_STRINGS -#undef NEED_SYS_TYPES_H -#define NEED_FAR_POINTERS /* for small or medium memory model */ -#undef NEED_SHORT_EXTERNAL_NAMES -#undef INCOMPLETE_TYPES_BROKEN - -#ifdef JPEG_INTERNALS - -#undef RIGHT_SHIFT_IS_UNSIGNED - -#define USE_MSDOS_MEMMGR /* Define this if you use jmemdos.c */ - -#define MAX_ALLOC_CHUNK 65520L /* Maximum request to malloc() */ - -#define USE_FMEM /* Microsoft has _fmemcpy() and _fmemset() */ - -#define NEED_FHEAPMIN /* far heap management routines are broken */ - -#define SHORTxLCONST_32 /* enable compiler-specific DCT optimization */ -/* Note: the above define is known to improve the code with Microsoft C 6.00A. - * I do not know whether it is good for later compiler versions. - * Please report any info on this point to jpeg-info@jpegclub.org. - */ - -#endif /* JPEG_INTERNALS */ - -#ifdef JPEG_CJPEG_DJPEG - -#define BMP_SUPPORTED /* BMP image file format */ -#define GIF_SUPPORTED /* GIF image file format */ -#define PPM_SUPPORTED /* PBMPLUS PPM/PGM image file format */ -#undef RLE_SUPPORTED /* Utah RLE image file format */ -#define TARGA_SUPPORTED /* Targa image file format */ - -#define TWO_FILE_COMMANDLINE -#define USE_SETMODE /* Microsoft has setmode() */ -#define NEED_SIGNAL_CATCHER /* Define this if you use jmemdos.c */ -#undef DONT_USE_B_MODE -#undef PROGRESS_REPORT /* optional */ - -#endif /* JPEG_CJPEG_DJPEG */ diff --git a/jpg/jconfig.sas b/jpg/jconfig.sas deleted file mode 100644 index b8a1819..0000000 --- a/jpg/jconfig.sas +++ /dev/null @@ -1,43 +0,0 @@ -/* jconfig.sas --- jconfig.h for Amiga systems using SAS C 6.0 and up. */ -/* see jconfig.txt for explanations */ - -#define HAVE_PROTOTYPES -#define HAVE_UNSIGNED_CHAR -#define HAVE_UNSIGNED_SHORT -/* #define void char */ -/* #define const */ -#undef CHAR_IS_UNSIGNED -#define HAVE_STDDEF_H -#define HAVE_STDLIB_H -#undef NEED_BSD_STRINGS -#undef NEED_SYS_TYPES_H -#undef NEED_FAR_POINTERS -#undef NEED_SHORT_EXTERNAL_NAMES -#undef INCOMPLETE_TYPES_BROKEN - -#ifdef JPEG_INTERNALS - -#undef RIGHT_SHIFT_IS_UNSIGNED - -#define TEMP_DIRECTORY "JPEGTMP:" /* recommended setting for Amiga */ - -#define NO_MKTEMP /* SAS C doesn't have mktemp() */ - -#define SHORTxSHORT_32 /* produces better DCT code with SAS C */ - -#endif /* JPEG_INTERNALS */ - -#ifdef JPEG_CJPEG_DJPEG - -#define BMP_SUPPORTED /* BMP image file format */ -#define GIF_SUPPORTED /* GIF image file format */ -#define PPM_SUPPORTED /* PBMPLUS PPM/PGM image file format */ -#undef RLE_SUPPORTED /* Utah RLE image file format */ -#define TARGA_SUPPORTED /* Targa image file format */ - -#define TWO_FILE_COMMANDLINE -#define NEED_SIGNAL_CATCHER -#undef DONT_USE_B_MODE -#undef PROGRESS_REPORT /* optional */ - -#endif /* JPEG_CJPEG_DJPEG */ diff --git a/jpg/jconfig.st b/jpg/jconfig.st deleted file mode 100644 index 5afa0b6..0000000 --- a/jpg/jconfig.st +++ /dev/null @@ -1,42 +0,0 @@ -/* jconfig.st --- jconfig.h for Atari ST/STE/TT using Pure C or Turbo C. */ -/* see jconfig.txt for explanations */ - -#define HAVE_PROTOTYPES -#define HAVE_UNSIGNED_CHAR -#define HAVE_UNSIGNED_SHORT -/* #define void char */ -/* #define const */ -#undef CHAR_IS_UNSIGNED -#define HAVE_STDDEF_H -#define HAVE_STDLIB_H -#undef NEED_BSD_STRINGS -#undef NEED_SYS_TYPES_H -#undef NEED_FAR_POINTERS -#undef NEED_SHORT_EXTERNAL_NAMES -#define INCOMPLETE_TYPES_BROKEN /* suppress undefined-structure warnings */ - -#ifdef JPEG_INTERNALS - -#undef RIGHT_SHIFT_IS_UNSIGNED - -#define ALIGN_TYPE long /* apparently double is a weird size? */ - -#endif /* JPEG_INTERNALS */ - -#ifdef JPEG_CJPEG_DJPEG - -#define BMP_SUPPORTED /* BMP image file format */ -#define GIF_SUPPORTED /* GIF image file format */ -#define PPM_SUPPORTED /* PBMPLUS PPM/PGM image file format */ -#undef RLE_SUPPORTED /* Utah RLE image file format */ -#define TARGA_SUPPORTED /* Targa image file format */ - -#define TWO_FILE_COMMANDLINE /* optional -- undef if you like Unix style */ -/* Note: if you undef TWO_FILE_COMMANDLINE, you may need to define - * USE_SETMODE. Some Atari compilers require it, some do not. - */ -#define NEED_SIGNAL_CATCHER /* needed if you use jmemname.c */ -#undef DONT_USE_B_MODE -#undef PROGRESS_REPORT /* optional */ - -#endif /* JPEG_CJPEG_DJPEG */ diff --git a/jpg/jconfig.txt b/jpg/jconfig.txt deleted file mode 100644 index b96d312..0000000 --- a/jpg/jconfig.txt +++ /dev/null @@ -1,164 +0,0 @@ -/* - * jconfig.txt - * - * Copyright (C) 1991-1994, Thomas G. Lane. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file documents the configuration options that are required to - * customize the JPEG software for a particular system. - * - * The actual configuration options for a particular installation are stored - * in jconfig.h. On many machines, jconfig.h can be generated automatically - * or copied from one of the "canned" jconfig files that we supply. But if - * you need to generate a jconfig.h file by hand, this file tells you how. - * - * DO NOT EDIT THIS FILE --- IT WON'T ACCOMPLISH ANYTHING. - * EDIT A COPY NAMED JCONFIG.H. - */ - - -/* - * These symbols indicate the properties of your machine or compiler. - * #define the symbol if yes, #undef it if no. - */ - -/* Does your compiler support function prototypes? - * (If not, you also need to use ansi2knr, see install.txt) - */ -#define HAVE_PROTOTYPES - -/* Does your compiler support the declaration "unsigned char" ? - * How about "unsigned short" ? - */ -#define HAVE_UNSIGNED_CHAR -#define HAVE_UNSIGNED_SHORT - -/* Define "void" as "char" if your compiler doesn't know about type void. - * NOTE: be sure to define void such that "void *" represents the most general - * pointer type, e.g., that returned by malloc(). - */ -/* #define void char */ - -/* Define "const" as empty if your compiler doesn't know the "const" keyword. - */ -/* #define const */ - -/* Define this if an ordinary "char" type is unsigned. - * If you're not sure, leaving it undefined will work at some cost in speed. - * If you defined HAVE_UNSIGNED_CHAR then the speed difference is minimal. - */ -#undef CHAR_IS_UNSIGNED - -/* Define this if your system has an ANSI-conforming file. - */ -#define HAVE_STDDEF_H - -/* Define this if your system has an ANSI-conforming file. - */ -#define HAVE_STDLIB_H - -/* Define this if your system does not have an ANSI/SysV , - * but does have a BSD-style . - */ -#undef NEED_BSD_STRINGS - -/* Define this if your system does not provide typedef size_t in any of the - * ANSI-standard places (stddef.h, stdlib.h, or stdio.h), but places it in - * instead. - */ -#undef NEED_SYS_TYPES_H - -/* For 80x86 machines, you need to define NEED_FAR_POINTERS, - * unless you are using a large-data memory model or 80386 flat-memory mode. - * On less brain-damaged CPUs this symbol must not be defined. - * (Defining this symbol causes large data structures to be referenced through - * "far" pointers and to be allocated with a special version of malloc.) - */ -#undef NEED_FAR_POINTERS - -/* Define this if your linker needs global names to be unique in less - * than the first 15 characters. - */ -#undef NEED_SHORT_EXTERNAL_NAMES - -/* Although a real ANSI C compiler can deal perfectly well with pointers to - * unspecified structures (see "incomplete types" in the spec), a few pre-ANSI - * and pseudo-ANSI compilers get confused. To keep one of these bozos happy, - * define INCOMPLETE_TYPES_BROKEN. This is not recommended unless you - * actually get "missing structure definition" warnings or errors while - * compiling the JPEG code. - */ -#undef INCOMPLETE_TYPES_BROKEN - -/* Define "boolean" as unsigned char, not int, on Windows systems. - */ -#ifdef _WIN32 -#ifndef __RPCNDR_H__ /* don't conflict if rpcndr.h already read */ -typedef unsigned char boolean; -#endif -#define HAVE_BOOLEAN /* prevent jmorecfg.h from redefining it */ -#endif - - -/* - * The following options affect code selection within the JPEG library, - * but they don't need to be visible to applications using the library. - * To minimize application namespace pollution, the symbols won't be - * defined unless JPEG_INTERNALS has been defined. - */ - -#ifdef JPEG_INTERNALS - -/* Define this if your compiler implements ">>" on signed values as a logical - * (unsigned) shift; leave it undefined if ">>" is a signed (arithmetic) shift, - * which is the normal and rational definition. - */ -#undef RIGHT_SHIFT_IS_UNSIGNED - - -#endif /* JPEG_INTERNALS */ - - -/* - * The remaining options do not affect the JPEG library proper, - * but only the sample applications cjpeg/djpeg (see cjpeg.c, djpeg.c). - * Other applications can ignore these. - */ - -#ifdef JPEG_CJPEG_DJPEG - -/* These defines indicate which image (non-JPEG) file formats are allowed. */ - -#define BMP_SUPPORTED /* BMP image file format */ -#define GIF_SUPPORTED /* GIF image file format */ -#define PPM_SUPPORTED /* PBMPLUS PPM/PGM image file format */ -#undef RLE_SUPPORTED /* Utah RLE image file format */ -#define TARGA_SUPPORTED /* Targa image file format */ - -/* Define this if you want to name both input and output files on the command - * line, rather than using stdout and optionally stdin. You MUST do this if - * your system can't cope with binary I/O to stdin/stdout. See comments at - * head of cjpeg.c or djpeg.c. - */ -#undef TWO_FILE_COMMANDLINE - -/* Define this if your system needs explicit cleanup of temporary files. - * This is crucial under MS-DOS, where the temporary "files" may be areas - * of extended memory; on most other systems it's not as important. - */ -#undef NEED_SIGNAL_CATCHER - -/* By default, we open image files with fopen(...,"rb") or fopen(...,"wb"). - * This is necessary on systems that distinguish text files from binary files, - * and is harmless on most systems that don't. If you have one of the rare - * systems that complains about the "b" spec, define this symbol. - */ -#undef DONT_USE_B_MODE - -/* Define this if you want percent-done progress reports from cjpeg/djpeg. - */ -#undef PROGRESS_REPORT - - -#endif /* JPEG_CJPEG_DJPEG */ diff --git a/jpg/jconfig.vc b/jpg/jconfig.vc deleted file mode 100644 index 55d2b00..0000000 --- a/jpg/jconfig.vc +++ /dev/null @@ -1,45 +0,0 @@ -/* jconfig.vc --- jconfig.h for Microsoft Visual C++ on Windows 95 or NT. */ -/* see jconfig.txt for explanations */ - -#define HAVE_PROTOTYPES -#define HAVE_UNSIGNED_CHAR -#define HAVE_UNSIGNED_SHORT -/* #define void char */ -/* #define const */ -#undef CHAR_IS_UNSIGNED -#define HAVE_STDDEF_H -#define HAVE_STDLIB_H -#undef NEED_BSD_STRINGS -#undef NEED_SYS_TYPES_H -#undef NEED_FAR_POINTERS /* we presume a 32-bit flat memory model */ -#undef NEED_SHORT_EXTERNAL_NAMES -#undef INCOMPLETE_TYPES_BROKEN - -/* Define "boolean" as unsigned char, not int, per Windows custom */ -#ifndef __RPCNDR_H__ /* don't conflict if rpcndr.h already read */ -typedef unsigned char boolean; -#endif -#define HAVE_BOOLEAN /* prevent jmorecfg.h from redefining it */ - - -#ifdef JPEG_INTERNALS - -#undef RIGHT_SHIFT_IS_UNSIGNED - -#endif /* JPEG_INTERNALS */ - -#ifdef JPEG_CJPEG_DJPEG - -#undef BMP_SUPPORTED /* BMP image file format */ -#undef GIF_SUPPORTED /* GIF image file format */ -#undef PPM_SUPPORTED /* PBMPLUS PPM/PGM image file format */ -#undef RLE_SUPPORTED /* Utah RLE image file format */ -#undef TARGA_SUPPORTED /* Targa image file format */ - -#define TWO_FILE_COMMANDLINE /* optional */ -#define USE_SETMODE /* Microsoft has setmode() */ -#undef NEED_SIGNAL_CATCHER -#undef DONT_USE_B_MODE -#undef PROGRESS_REPORT /* optional */ - -#endif /* JPEG_CJPEG_DJPEG */ diff --git a/jpg/jconfig.vms b/jpg/jconfig.vms deleted file mode 100644 index 8337b0b..0000000 --- a/jpg/jconfig.vms +++ /dev/null @@ -1,37 +0,0 @@ -/* jconfig.vms --- jconfig.h for use on Digital VMS. */ -/* see jconfig.txt for explanations */ - -#define HAVE_PROTOTYPES -#define HAVE_UNSIGNED_CHAR -#define HAVE_UNSIGNED_SHORT -/* #define void char */ -/* #define const */ -#undef CHAR_IS_UNSIGNED -#define HAVE_STDDEF_H -#define HAVE_STDLIB_H -#undef NEED_BSD_STRINGS -#undef NEED_SYS_TYPES_H -#undef NEED_FAR_POINTERS -#undef NEED_SHORT_EXTERNAL_NAMES -#undef INCOMPLETE_TYPES_BROKEN - -#ifdef JPEG_INTERNALS - -#undef RIGHT_SHIFT_IS_UNSIGNED - -#endif /* JPEG_INTERNALS */ - -#ifdef JPEG_CJPEG_DJPEG - -#define BMP_SUPPORTED /* BMP image file format */ -#define GIF_SUPPORTED /* GIF image file format */ -#define PPM_SUPPORTED /* PBMPLUS PPM/PGM image file format */ -#undef RLE_SUPPORTED /* Utah RLE image file format */ -#define TARGA_SUPPORTED /* Targa image file format */ - -#define TWO_FILE_COMMANDLINE /* Needed on VMS */ -#undef NEED_SIGNAL_CATCHER -#undef DONT_USE_B_MODE -#undef PROGRESS_REPORT /* optional */ - -#endif /* JPEG_CJPEG_DJPEG */ diff --git a/jpg/jconfig.wat b/jpg/jconfig.wat deleted file mode 100644 index 190cc75..0000000 --- a/jpg/jconfig.wat +++ /dev/null @@ -1,38 +0,0 @@ -/* jconfig.wat --- jconfig.h for Watcom C/C++ on MS-DOS or OS/2. */ -/* see jconfig.txt for explanations */ - -#define HAVE_PROTOTYPES -#define HAVE_UNSIGNED_CHAR -#define HAVE_UNSIGNED_SHORT -/* #define void char */ -/* #define const */ -#define CHAR_IS_UNSIGNED -#define HAVE_STDDEF_H -#define HAVE_STDLIB_H -#undef NEED_BSD_STRINGS -#undef NEED_SYS_TYPES_H -#undef NEED_FAR_POINTERS /* Watcom uses flat 32-bit addressing */ -#undef NEED_SHORT_EXTERNAL_NAMES -#undef INCOMPLETE_TYPES_BROKEN - -#ifdef JPEG_INTERNALS - -#undef RIGHT_SHIFT_IS_UNSIGNED - -#endif /* JPEG_INTERNALS */ - -#ifdef JPEG_CJPEG_DJPEG - -#define BMP_SUPPORTED /* BMP image file format */ -#define GIF_SUPPORTED /* GIF image file format */ -#define PPM_SUPPORTED /* PBMPLUS PPM/PGM image file format */ -#undef RLE_SUPPORTED /* Utah RLE image file format */ -#define TARGA_SUPPORTED /* Targa image file format */ - -#undef TWO_FILE_COMMANDLINE /* optional */ -#define USE_SETMODE /* Needed to make one-file style work in Watcom */ -#undef NEED_SIGNAL_CATCHER /* Define this if you use jmemname.c */ -#undef DONT_USE_B_MODE -#undef PROGRESS_REPORT /* optional */ - -#endif /* JPEG_CJPEG_DJPEG */ diff --git a/jpg/jcparam.c b/jpg/jcparam.c deleted file mode 100644 index c5e85dd..0000000 --- a/jpg/jcparam.c +++ /dev/null @@ -1,632 +0,0 @@ -/* - * jcparam.c - * - * Copyright (C) 1991-1998, Thomas G. Lane. - * Modified 2003-2008 by Guido Vollbeding. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file contains optional default-setting code for the JPEG compressor. - * Applications do not have to use this file, but those that don't use it - * must know a lot more about the innards of the JPEG code. - */ - -#define JPEG_INTERNALS -#include "jinclude.h" -#include "jpeglib.h" - - -/* - * Quantization table setup routines - */ - -GLOBAL(void) -jpeg_add_quant_table (j_compress_ptr cinfo, int which_tbl, - const unsigned int *basic_table, - int scale_factor, boolean force_baseline) -/* Define a quantization table equal to the basic_table times - * a scale factor (given as a percentage). - * If force_baseline is TRUE, the computed quantization table entries - * are limited to 1..255 for JPEG baseline compatibility. - */ -{ - JQUANT_TBL ** qtblptr; - int i; - long temp; - - /* Safety check to ensure start_compress not called yet. */ - if (cinfo->global_state != CSTATE_START) - ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state); - - if (which_tbl < 0 || which_tbl >= NUM_QUANT_TBLS) - ERREXIT1(cinfo, JERR_DQT_INDEX, which_tbl); - - qtblptr = & cinfo->quant_tbl_ptrs[which_tbl]; - - if (*qtblptr == NULL) - *qtblptr = jpeg_alloc_quant_table((j_common_ptr) cinfo); - - for (i = 0; i < DCTSIZE2; i++) { - temp = ((long) basic_table[i] * scale_factor + 50L) / 100L; - /* limit the values to the valid range */ - if (temp <= 0L) temp = 1L; - if (temp > 32767L) temp = 32767L; /* max quantizer needed for 12 bits */ - if (force_baseline && temp > 255L) - temp = 255L; /* limit to baseline range if requested */ - (*qtblptr)->quantval[i] = (UINT16) temp; - } - - /* Initialize sent_table FALSE so table will be written to JPEG file. */ - (*qtblptr)->sent_table = FALSE; -} - - -/* These are the sample quantization tables given in JPEG spec section K.1. - * The spec says that the values given produce "good" quality, and - * when divided by 2, "very good" quality. - */ -static const unsigned int std_luminance_quant_tbl[DCTSIZE2] = { - 16, 11, 10, 16, 24, 40, 51, 61, - 12, 12, 14, 19, 26, 58, 60, 55, - 14, 13, 16, 24, 40, 57, 69, 56, - 14, 17, 22, 29, 51, 87, 80, 62, - 18, 22, 37, 56, 68, 109, 103, 77, - 24, 35, 55, 64, 81, 104, 113, 92, - 49, 64, 78, 87, 103, 121, 120, 101, - 72, 92, 95, 98, 112, 100, 103, 99 -}; -static const unsigned int std_chrominance_quant_tbl[DCTSIZE2] = { - 17, 18, 24, 47, 99, 99, 99, 99, - 18, 21, 26, 66, 99, 99, 99, 99, - 24, 26, 56, 99, 99, 99, 99, 99, - 47, 66, 99, 99, 99, 99, 99, 99, - 99, 99, 99, 99, 99, 99, 99, 99, - 99, 99, 99, 99, 99, 99, 99, 99, - 99, 99, 99, 99, 99, 99, 99, 99, - 99, 99, 99, 99, 99, 99, 99, 99 -}; - - -GLOBAL(void) -jpeg_default_qtables (j_compress_ptr cinfo, boolean force_baseline) -/* Set or change the 'quality' (quantization) setting, using default tables - * and straight percentage-scaling quality scales. - * This entry point allows different scalings for luminance and chrominance. - */ -{ - /* Set up two quantization tables using the specified scaling */ - jpeg_add_quant_table(cinfo, 0, std_luminance_quant_tbl, - cinfo->q_scale_factor[0], force_baseline); - jpeg_add_quant_table(cinfo, 1, std_chrominance_quant_tbl, - cinfo->q_scale_factor[1], force_baseline); -} - - -GLOBAL(void) -jpeg_set_linear_quality (j_compress_ptr cinfo, int scale_factor, - boolean force_baseline) -/* Set or change the 'quality' (quantization) setting, using default tables - * and a straight percentage-scaling quality scale. In most cases it's better - * to use jpeg_set_quality (below); this entry point is provided for - * applications that insist on a linear percentage scaling. - */ -{ - /* Set up two quantization tables using the specified scaling */ - jpeg_add_quant_table(cinfo, 0, std_luminance_quant_tbl, - scale_factor, force_baseline); - jpeg_add_quant_table(cinfo, 1, std_chrominance_quant_tbl, - scale_factor, force_baseline); -} - - -GLOBAL(int) -jpeg_quality_scaling (int quality) -/* Convert a user-specified quality rating to a percentage scaling factor - * for an underlying quantization table, using our recommended scaling curve. - * The input 'quality' factor should be 0 (terrible) to 100 (very good). - */ -{ - /* Safety limit on quality factor. Convert 0 to 1 to avoid zero divide. */ - if (quality <= 0) quality = 1; - if (quality > 100) quality = 100; - - /* The basic table is used as-is (scaling 100) for a quality of 50. - * Qualities 50..100 are converted to scaling percentage 200 - 2*Q; - * note that at Q=100 the scaling is 0, which will cause jpeg_add_quant_table - * to make all the table entries 1 (hence, minimum quantization loss). - * Qualities 1..50 are converted to scaling percentage 5000/Q. - */ - if (quality < 50) - quality = 5000 / quality; - else - quality = 200 - quality*2; - - return quality; -} - - -GLOBAL(void) -jpeg_set_quality (j_compress_ptr cinfo, int quality, boolean force_baseline) -/* Set or change the 'quality' (quantization) setting, using default tables. - * This is the standard quality-adjusting entry point for typical user - * interfaces; only those who want detailed control over quantization tables - * would use the preceding three routines directly. - */ -{ - /* Convert user 0-100 rating to percentage scaling */ - quality = jpeg_quality_scaling(quality); - - /* Set up standard quality tables */ - jpeg_set_linear_quality(cinfo, quality, force_baseline); -} - - -/* - * Huffman table setup routines - */ - -LOCAL(void) -add_huff_table (j_compress_ptr cinfo, - JHUFF_TBL **htblptr, const UINT8 *bits, const UINT8 *val) -/* Define a Huffman table */ -{ - int nsymbols, len; - - if (*htblptr == NULL) - *htblptr = jpeg_alloc_huff_table((j_common_ptr) cinfo); - - /* Copy the number-of-symbols-of-each-code-length counts */ - MEMCOPY((*htblptr)->bits, bits, SIZEOF((*htblptr)->bits)); - - /* Validate the counts. We do this here mainly so we can copy the right - * number of symbols from the val[] array, without risking marching off - * the end of memory. jchuff.c will do a more thorough test later. - */ - nsymbols = 0; - for (len = 1; len <= 16; len++) - nsymbols += bits[len]; - if (nsymbols < 1 || nsymbols > 256) - ERREXIT(cinfo, JERR_BAD_HUFF_TABLE); - - MEMCOPY((*htblptr)->huffval, val, nsymbols * SIZEOF(UINT8)); - - /* Initialize sent_table FALSE so table will be written to JPEG file. */ - (*htblptr)->sent_table = FALSE; -} - - -LOCAL(void) -std_huff_tables (j_compress_ptr cinfo) -/* Set up the standard Huffman tables (cf. JPEG standard section K.3) */ -/* IMPORTANT: these are only valid for 8-bit data precision! */ -{ - static const UINT8 bits_dc_luminance[17] = - { /* 0-base */ 0, 0, 1, 5, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0 }; - static const UINT8 val_dc_luminance[] = - { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11 }; - - static const UINT8 bits_dc_chrominance[17] = - { /* 0-base */ 0, 0, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0 }; - static const UINT8 val_dc_chrominance[] = - { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11 }; - - static const UINT8 bits_ac_luminance[17] = - { /* 0-base */ 0, 0, 2, 1, 3, 3, 2, 4, 3, 5, 5, 4, 4, 0, 0, 1, 0x7d }; - static const UINT8 val_ac_luminance[] = - { 0x01, 0x02, 0x03, 0x00, 0x04, 0x11, 0x05, 0x12, - 0x21, 0x31, 0x41, 0x06, 0x13, 0x51, 0x61, 0x07, - 0x22, 0x71, 0x14, 0x32, 0x81, 0x91, 0xa1, 0x08, - 0x23, 0x42, 0xb1, 0xc1, 0x15, 0x52, 0xd1, 0xf0, - 0x24, 0x33, 0x62, 0x72, 0x82, 0x09, 0x0a, 0x16, - 0x17, 0x18, 0x19, 0x1a, 0x25, 0x26, 0x27, 0x28, - 0x29, 0x2a, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, - 0x3a, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48, 0x49, - 0x4a, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58, 0x59, - 0x5a, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69, - 0x6a, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78, 0x79, - 0x7a, 0x83, 0x84, 0x85, 0x86, 0x87, 0x88, 0x89, - 0x8a, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97, 0x98, - 0x99, 0x9a, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7, - 0xa8, 0xa9, 0xaa, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, - 0xb7, 0xb8, 0xb9, 0xba, 0xc2, 0xc3, 0xc4, 0xc5, - 0xc6, 0xc7, 0xc8, 0xc9, 0xca, 0xd2, 0xd3, 0xd4, - 0xd5, 0xd6, 0xd7, 0xd8, 0xd9, 0xda, 0xe1, 0xe2, - 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, 0xe8, 0xe9, 0xea, - 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, 0xf8, - 0xf9, 0xfa }; - - static const UINT8 bits_ac_chrominance[17] = - { /* 0-base */ 0, 0, 2, 1, 2, 4, 4, 3, 4, 7, 5, 4, 4, 0, 1, 2, 0x77 }; - static const UINT8 val_ac_chrominance[] = - { 0x00, 0x01, 0x02, 0x03, 0x11, 0x04, 0x05, 0x21, - 0x31, 0x06, 0x12, 0x41, 0x51, 0x07, 0x61, 0x71, - 0x13, 0x22, 0x32, 0x81, 0x08, 0x14, 0x42, 0x91, - 0xa1, 0xb1, 0xc1, 0x09, 0x23, 0x33, 0x52, 0xf0, - 0x15, 0x62, 0x72, 0xd1, 0x0a, 0x16, 0x24, 0x34, - 0xe1, 0x25, 0xf1, 0x17, 0x18, 0x19, 0x1a, 0x26, - 0x27, 0x28, 0x29, 0x2a, 0x35, 0x36, 0x37, 0x38, - 0x39, 0x3a, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48, - 0x49, 0x4a, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58, - 0x59, 0x5a, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, - 0x69, 0x6a, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78, - 0x79, 0x7a, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, - 0x88, 0x89, 0x8a, 0x92, 0x93, 0x94, 0x95, 0x96, - 0x97, 0x98, 0x99, 0x9a, 0xa2, 0xa3, 0xa4, 0xa5, - 0xa6, 0xa7, 0xa8, 0xa9, 0xaa, 0xb2, 0xb3, 0xb4, - 0xb5, 0xb6, 0xb7, 0xb8, 0xb9, 0xba, 0xc2, 0xc3, - 0xc4, 0xc5, 0xc6, 0xc7, 0xc8, 0xc9, 0xca, 0xd2, - 0xd3, 0xd4, 0xd5, 0xd6, 0xd7, 0xd8, 0xd9, 0xda, - 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, 0xe8, 0xe9, - 0xea, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, 0xf8, - 0xf9, 0xfa }; - - add_huff_table(cinfo, &cinfo->dc_huff_tbl_ptrs[0], - bits_dc_luminance, val_dc_luminance); - add_huff_table(cinfo, &cinfo->ac_huff_tbl_ptrs[0], - bits_ac_luminance, val_ac_luminance); - add_huff_table(cinfo, &cinfo->dc_huff_tbl_ptrs[1], - bits_dc_chrominance, val_dc_chrominance); - add_huff_table(cinfo, &cinfo->ac_huff_tbl_ptrs[1], - bits_ac_chrominance, val_ac_chrominance); -} - - -/* - * Default parameter setup for compression. - * - * Applications that don't choose to use this routine must do their - * own setup of all these parameters. Alternately, you can call this - * to establish defaults and then alter parameters selectively. This - * is the recommended approach since, if we add any new parameters, - * your code will still work (they'll be set to reasonable defaults). - */ - -GLOBAL(void) -jpeg_set_defaults (j_compress_ptr cinfo) -{ - int i; - - /* Safety check to ensure start_compress not called yet. */ - if (cinfo->global_state != CSTATE_START) - ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state); - - /* Allocate comp_info array large enough for maximum component count. - * Array is made permanent in case application wants to compress - * multiple images at same param settings. - */ - if (cinfo->comp_info == NULL) - cinfo->comp_info = (jpeg_component_info *) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_PERMANENT, - MAX_COMPONENTS * SIZEOF(jpeg_component_info)); - - /* Initialize everything not dependent on the color space */ - - cinfo->scale_num = 1; /* 1:1 scaling */ - cinfo->scale_denom = 1; - cinfo->data_precision = BITS_IN_JSAMPLE; - /* Set up two quantization tables using default quality of 75 */ - jpeg_set_quality(cinfo, 75, TRUE); - /* Set up two Huffman tables */ - std_huff_tables(cinfo); - - /* Initialize default arithmetic coding conditioning */ - for (i = 0; i < NUM_ARITH_TBLS; i++) { - cinfo->arith_dc_L[i] = 0; - cinfo->arith_dc_U[i] = 1; - cinfo->arith_ac_K[i] = 5; - } - - /* Default is no multiple-scan output */ - cinfo->scan_info = NULL; - cinfo->num_scans = 0; - - /* Expect normal source image, not raw downsampled data */ - cinfo->raw_data_in = FALSE; - - /* Use Huffman coding, not arithmetic coding, by default */ - cinfo->arith_code = FALSE; - - /* By default, don't do extra passes to optimize entropy coding */ - cinfo->optimize_coding = FALSE; - /* The standard Huffman tables are only valid for 8-bit data precision. - * If the precision is higher, force optimization on so that usable - * tables will be computed. This test can be removed if default tables - * are supplied that are valid for the desired precision. - */ - if (cinfo->data_precision > 8) - cinfo->optimize_coding = TRUE; - - /* By default, use the simpler non-cosited sampling alignment */ - cinfo->CCIR601_sampling = FALSE; - - /* By default, apply fancy downsampling */ - cinfo->do_fancy_downsampling = TRUE; - - /* No input smoothing */ - cinfo->smoothing_factor = 0; - - /* DCT algorithm preference */ - cinfo->dct_method = JDCT_DEFAULT; - - /* No restart markers */ - cinfo->restart_interval = 0; - cinfo->restart_in_rows = 0; - - /* Fill in default JFIF marker parameters. Note that whether the marker - * will actually be written is determined by jpeg_set_colorspace. - * - * By default, the library emits JFIF version code 1.01. - * An application that wants to emit JFIF 1.02 extension markers should set - * JFIF_minor_version to 2. We could probably get away with just defaulting - * to 1.02, but there may still be some decoders in use that will complain - * about that; saying 1.01 should minimize compatibility problems. - */ - cinfo->JFIF_major_version = 1; /* Default JFIF version = 1.01 */ - cinfo->JFIF_minor_version = 1; - cinfo->density_unit = 0; /* Pixel size is unknown by default */ - cinfo->X_density = 1; /* Pixel aspect ratio is square by default */ - cinfo->Y_density = 1; - - /* Choose JPEG colorspace based on input space, set defaults accordingly */ - - jpeg_default_colorspace(cinfo); -} - - -/* - * Select an appropriate JPEG colorspace for in_color_space. - */ - -GLOBAL(void) -jpeg_default_colorspace (j_compress_ptr cinfo) -{ - switch (cinfo->in_color_space) { - case JCS_GRAYSCALE: - jpeg_set_colorspace(cinfo, JCS_GRAYSCALE); - break; - case JCS_RGB: - jpeg_set_colorspace(cinfo, JCS_YCbCr); - break; - case JCS_YCbCr: - jpeg_set_colorspace(cinfo, JCS_YCbCr); - break; - case JCS_CMYK: - jpeg_set_colorspace(cinfo, JCS_CMYK); /* By default, no translation */ - break; - case JCS_YCCK: - jpeg_set_colorspace(cinfo, JCS_YCCK); - break; - case JCS_UNKNOWN: - jpeg_set_colorspace(cinfo, JCS_UNKNOWN); - break; - default: - ERREXIT(cinfo, JERR_BAD_IN_COLORSPACE); - } -} - - -/* - * Set the JPEG colorspace, and choose colorspace-dependent default values. - */ - -GLOBAL(void) -jpeg_set_colorspace (j_compress_ptr cinfo, J_COLOR_SPACE colorspace) -{ - jpeg_component_info * compptr; - int ci; - -#define SET_COMP(index,id,hsamp,vsamp,quant,dctbl,actbl) \ - (compptr = &cinfo->comp_info[index], \ - compptr->component_id = (id), \ - compptr->h_samp_factor = (hsamp), \ - compptr->v_samp_factor = (vsamp), \ - compptr->quant_tbl_no = (quant), \ - compptr->dc_tbl_no = (dctbl), \ - compptr->ac_tbl_no = (actbl) ) - - /* Safety check to ensure start_compress not called yet. */ - if (cinfo->global_state != CSTATE_START) - ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state); - - /* For all colorspaces, we use Q and Huff tables 0 for luminance components, - * tables 1 for chrominance components. - */ - - cinfo->jpeg_color_space = colorspace; - - cinfo->write_JFIF_header = FALSE; /* No marker for non-JFIF colorspaces */ - cinfo->write_Adobe_marker = FALSE; /* write no Adobe marker by default */ - - switch (colorspace) { - case JCS_GRAYSCALE: - cinfo->write_JFIF_header = TRUE; /* Write a JFIF marker */ - cinfo->num_components = 1; - /* JFIF specifies component ID 1 */ - SET_COMP(0, 1, 1,1, 0, 0,0); - break; - case JCS_RGB: - cinfo->write_Adobe_marker = TRUE; /* write Adobe marker to flag RGB */ - cinfo->num_components = 3; - SET_COMP(0, 0x52 /* 'R' */, 1,1, 0, 0,0); - SET_COMP(1, 0x47 /* 'G' */, 1,1, 0, 0,0); - SET_COMP(2, 0x42 /* 'B' */, 1,1, 0, 0,0); - break; - case JCS_YCbCr: - cinfo->write_JFIF_header = TRUE; /* Write a JFIF marker */ - cinfo->num_components = 3; - /* JFIF specifies component IDs 1,2,3 */ - /* We default to 2x2 subsamples of chrominance */ - SET_COMP(0, 1, 2,2, 0, 0,0); - SET_COMP(1, 2, 1,1, 1, 1,1); - SET_COMP(2, 3, 1,1, 1, 1,1); - break; - case JCS_CMYK: - cinfo->write_Adobe_marker = TRUE; /* write Adobe marker to flag CMYK */ - cinfo->num_components = 4; - SET_COMP(0, 0x43 /* 'C' */, 1,1, 0, 0,0); - SET_COMP(1, 0x4D /* 'M' */, 1,1, 0, 0,0); - SET_COMP(2, 0x59 /* 'Y' */, 1,1, 0, 0,0); - SET_COMP(3, 0x4B /* 'K' */, 1,1, 0, 0,0); - break; - case JCS_YCCK: - cinfo->write_Adobe_marker = TRUE; /* write Adobe marker to flag YCCK */ - cinfo->num_components = 4; - SET_COMP(0, 1, 2,2, 0, 0,0); - SET_COMP(1, 2, 1,1, 1, 1,1); - SET_COMP(2, 3, 1,1, 1, 1,1); - SET_COMP(3, 4, 2,2, 0, 0,0); - break; - case JCS_UNKNOWN: - cinfo->num_components = cinfo->input_components; - if (cinfo->num_components < 1 || cinfo->num_components > MAX_COMPONENTS) - ERREXIT2(cinfo, JERR_COMPONENT_COUNT, cinfo->num_components, - MAX_COMPONENTS); - for (ci = 0; ci < cinfo->num_components; ci++) { - SET_COMP(ci, ci, 1,1, 0, 0,0); - } - break; - default: - ERREXIT(cinfo, JERR_BAD_J_COLORSPACE); - } -} - - -#ifdef C_PROGRESSIVE_SUPPORTED - -LOCAL(jpeg_scan_info *) -fill_a_scan (jpeg_scan_info * scanptr, int ci, - int Ss, int Se, int Ah, int Al) -/* Support routine: generate one scan for specified component */ -{ - scanptr->comps_in_scan = 1; - scanptr->component_index[0] = ci; - scanptr->Ss = Ss; - scanptr->Se = Se; - scanptr->Ah = Ah; - scanptr->Al = Al; - scanptr++; - return scanptr; -} - -LOCAL(jpeg_scan_info *) -fill_scans (jpeg_scan_info * scanptr, int ncomps, - int Ss, int Se, int Ah, int Al) -/* Support routine: generate one scan for each component */ -{ - int ci; - - for (ci = 0; ci < ncomps; ci++) { - scanptr->comps_in_scan = 1; - scanptr->component_index[0] = ci; - scanptr->Ss = Ss; - scanptr->Se = Se; - scanptr->Ah = Ah; - scanptr->Al = Al; - scanptr++; - } - return scanptr; -} - -LOCAL(jpeg_scan_info *) -fill_dc_scans (jpeg_scan_info * scanptr, int ncomps, int Ah, int Al) -/* Support routine: generate interleaved DC scan if possible, else N scans */ -{ - int ci; - - if (ncomps <= MAX_COMPS_IN_SCAN) { - /* Single interleaved DC scan */ - scanptr->comps_in_scan = ncomps; - for (ci = 0; ci < ncomps; ci++) - scanptr->component_index[ci] = ci; - scanptr->Ss = scanptr->Se = 0; - scanptr->Ah = Ah; - scanptr->Al = Al; - scanptr++; - } else { - /* Noninterleaved DC scan for each component */ - scanptr = fill_scans(scanptr, ncomps, 0, 0, Ah, Al); - } - return scanptr; -} - - -/* - * Create a recommended progressive-JPEG script. - * cinfo->num_components and cinfo->jpeg_color_space must be correct. - */ - -GLOBAL(void) -jpeg_simple_progression (j_compress_ptr cinfo) -{ - int ncomps = cinfo->num_components; - int nscans; - jpeg_scan_info * scanptr; - - /* Safety check to ensure start_compress not called yet. */ - if (cinfo->global_state != CSTATE_START) - ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state); - - /* Figure space needed for script. Calculation must match code below! */ - if (ncomps == 3 && cinfo->jpeg_color_space == JCS_YCbCr) { - /* Custom script for YCbCr color images. */ - nscans = 10; - } else { - /* All-purpose script for other color spaces. */ - if (ncomps > MAX_COMPS_IN_SCAN) - nscans = 6 * ncomps; /* 2 DC + 4 AC scans per component */ - else - nscans = 2 + 4 * ncomps; /* 2 DC scans; 4 AC scans per component */ - } - - /* Allocate space for script. - * We need to put it in the permanent pool in case the application performs - * multiple compressions without changing the settings. To avoid a memory - * leak if jpeg_simple_progression is called repeatedly for the same JPEG - * object, we try to re-use previously allocated space, and we allocate - * enough space to handle YCbCr even if initially asked for grayscale. - */ - if (cinfo->script_space == NULL || cinfo->script_space_size < nscans) { - cinfo->script_space_size = MAX(nscans, 10); - cinfo->script_space = (jpeg_scan_info *) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_PERMANENT, - cinfo->script_space_size * SIZEOF(jpeg_scan_info)); - } - scanptr = cinfo->script_space; - cinfo->scan_info = scanptr; - cinfo->num_scans = nscans; - - if (ncomps == 3 && cinfo->jpeg_color_space == JCS_YCbCr) { - /* Custom script for YCbCr color images. */ - /* Initial DC scan */ - scanptr = fill_dc_scans(scanptr, ncomps, 0, 1); - /* Initial AC scan: get some luma data out in a hurry */ - scanptr = fill_a_scan(scanptr, 0, 1, 5, 0, 2); - /* Chroma data is too small to be worth expending many scans on */ - scanptr = fill_a_scan(scanptr, 2, 1, 63, 0, 1); - scanptr = fill_a_scan(scanptr, 1, 1, 63, 0, 1); - /* Complete spectral selection for luma AC */ - scanptr = fill_a_scan(scanptr, 0, 6, 63, 0, 2); - /* Refine next bit of luma AC */ - scanptr = fill_a_scan(scanptr, 0, 1, 63, 2, 1); - /* Finish DC successive approximation */ - scanptr = fill_dc_scans(scanptr, ncomps, 1, 0); - /* Finish AC successive approximation */ - scanptr = fill_a_scan(scanptr, 2, 1, 63, 1, 0); - scanptr = fill_a_scan(scanptr, 1, 1, 63, 1, 0); - /* Luma bottom bit comes last since it's usually largest scan */ - scanptr = fill_a_scan(scanptr, 0, 1, 63, 1, 0); - } else { - /* All-purpose script for other color spaces. */ - /* Successive approximation first pass */ - scanptr = fill_dc_scans(scanptr, ncomps, 0, 1); - scanptr = fill_scans(scanptr, ncomps, 1, 5, 0, 2); - scanptr = fill_scans(scanptr, ncomps, 6, 63, 0, 2); - /* Successive approximation second pass */ - scanptr = fill_scans(scanptr, ncomps, 1, 63, 2, 1); - /* Successive approximation final pass */ - scanptr = fill_dc_scans(scanptr, ncomps, 1, 0); - scanptr = fill_scans(scanptr, ncomps, 1, 63, 1, 0); - } -} - -#endif /* C_PROGRESSIVE_SUPPORTED */ diff --git a/jpg/jcprepct.c b/jpg/jcprepct.c deleted file mode 100644 index be44cc4..0000000 --- a/jpg/jcprepct.c +++ /dev/null @@ -1,358 +0,0 @@ -/* - * jcprepct.c - * - * Copyright (C) 1994-1996, Thomas G. Lane. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file contains the compression preprocessing controller. - * This controller manages the color conversion, downsampling, - * and edge expansion steps. - * - * Most of the complexity here is associated with buffering input rows - * as required by the downsampler. See the comments at the head of - * jcsample.c for the downsampler's needs. - */ - -#define JPEG_INTERNALS -#include "jinclude.h" -#include "jpeglib.h" - - -/* At present, jcsample.c can request context rows only for smoothing. - * In the future, we might also need context rows for CCIR601 sampling - * or other more-complex downsampling procedures. The code to support - * context rows should be compiled only if needed. - */ -#ifdef INPUT_SMOOTHING_SUPPORTED -#define CONTEXT_ROWS_SUPPORTED -#endif - - -/* - * For the simple (no-context-row) case, we just need to buffer one - * row group's worth of pixels for the downsampling step. At the bottom of - * the image, we pad to a full row group by replicating the last pixel row. - * The downsampler's last output row is then replicated if needed to pad - * out to a full iMCU row. - * - * When providing context rows, we must buffer three row groups' worth of - * pixels. Three row groups are physically allocated, but the row pointer - * arrays are made five row groups high, with the extra pointers above and - * below "wrapping around" to point to the last and first real row groups. - * This allows the downsampler to access the proper context rows. - * At the top and bottom of the image, we create dummy context rows by - * copying the first or last real pixel row. This copying could be avoided - * by pointer hacking as is done in jdmainct.c, but it doesn't seem worth the - * trouble on the compression side. - */ - - -/* Private buffer controller object */ - -typedef struct { - struct jpeg_c_prep_controller pub; /* public fields */ - - /* Downsampling input buffer. This buffer holds color-converted data - * until we have enough to do a downsample step. - */ - JSAMPARRAY color_buf[MAX_COMPONENTS]; - - JDIMENSION rows_to_go; /* counts rows remaining in source image */ - int next_buf_row; /* index of next row to store in color_buf */ - -#ifdef CONTEXT_ROWS_SUPPORTED /* only needed for context case */ - int this_row_group; /* starting row index of group to process */ - int next_buf_stop; /* downsample when we reach this index */ -#endif -} my_prep_controller; - -typedef my_prep_controller * my_prep_ptr; - - -/* - * Initialize for a processing pass. - */ - -METHODDEF(void) -start_pass_prep (j_compress_ptr cinfo, J_BUF_MODE pass_mode) -{ - my_prep_ptr prep = (my_prep_ptr) cinfo->prep; - - if (pass_mode != JBUF_PASS_THRU) - ERREXIT(cinfo, JERR_BAD_BUFFER_MODE); - - /* Initialize total-height counter for detecting bottom of image */ - prep->rows_to_go = cinfo->image_height; - /* Mark the conversion buffer empty */ - prep->next_buf_row = 0; -#ifdef CONTEXT_ROWS_SUPPORTED - /* Preset additional state variables for context mode. - * These aren't used in non-context mode, so we needn't test which mode. - */ - prep->this_row_group = 0; - /* Set next_buf_stop to stop after two row groups have been read in. */ - prep->next_buf_stop = 2 * cinfo->max_v_samp_factor; -#endif -} - - -/* - * Expand an image vertically from height input_rows to height output_rows, - * by duplicating the bottom row. - */ - -LOCAL(void) -expand_bottom_edge (JSAMPARRAY image_data, JDIMENSION num_cols, - int input_rows, int output_rows) -{ - register int row; - - for (row = input_rows; row < output_rows; row++) { - jcopy_sample_rows(image_data, input_rows-1, image_data, row, - 1, num_cols); - } -} - - -/* - * Process some data in the simple no-context case. - * - * Preprocessor output data is counted in "row groups". A row group - * is defined to be v_samp_factor sample rows of each component. - * Downsampling will produce this much data from each max_v_samp_factor - * input rows. - */ - -METHODDEF(void) -pre_process_data (j_compress_ptr cinfo, - JSAMPARRAY input_buf, JDIMENSION *in_row_ctr, - JDIMENSION in_rows_avail, - JSAMPIMAGE output_buf, JDIMENSION *out_row_group_ctr, - JDIMENSION out_row_groups_avail) -{ - my_prep_ptr prep = (my_prep_ptr) cinfo->prep; - int numrows, ci; - JDIMENSION inrows; - jpeg_component_info * compptr; - - while (*in_row_ctr < in_rows_avail && - *out_row_group_ctr < out_row_groups_avail) { - /* Do color conversion to fill the conversion buffer. */ - inrows = in_rows_avail - *in_row_ctr; - numrows = cinfo->max_v_samp_factor - prep->next_buf_row; - numrows = (int) MIN((JDIMENSION) numrows, inrows); - (*cinfo->cconvert->color_convert) (cinfo, input_buf + *in_row_ctr, - prep->color_buf, - (JDIMENSION) prep->next_buf_row, - numrows); - *in_row_ctr += numrows; - prep->next_buf_row += numrows; - prep->rows_to_go -= numrows; - /* If at bottom of image, pad to fill the conversion buffer. */ - if (prep->rows_to_go == 0 && - prep->next_buf_row < cinfo->max_v_samp_factor) { - for (ci = 0; ci < cinfo->num_components; ci++) { - expand_bottom_edge(prep->color_buf[ci], cinfo->image_width, - prep->next_buf_row, cinfo->max_v_samp_factor); - } - prep->next_buf_row = cinfo->max_v_samp_factor; - } - /* If we've filled the conversion buffer, empty it. */ - if (prep->next_buf_row == cinfo->max_v_samp_factor) { - (*cinfo->downsample->downsample) (cinfo, - prep->color_buf, (JDIMENSION) 0, - output_buf, *out_row_group_ctr); - prep->next_buf_row = 0; - (*out_row_group_ctr)++; - } - /* If at bottom of image, pad the output to a full iMCU height. - * Note we assume the caller is providing a one-iMCU-height output buffer! - */ - if (prep->rows_to_go == 0 && - *out_row_group_ctr < out_row_groups_avail) { - for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components; - ci++, compptr++) { - numrows = (compptr->v_samp_factor * compptr->DCT_v_scaled_size) / - cinfo->min_DCT_v_scaled_size; - expand_bottom_edge(output_buf[ci], - compptr->width_in_blocks * compptr->DCT_h_scaled_size, - (int) (*out_row_group_ctr * numrows), - (int) (out_row_groups_avail * numrows)); - } - *out_row_group_ctr = out_row_groups_avail; - break; /* can exit outer loop without test */ - } - } -} - - -#ifdef CONTEXT_ROWS_SUPPORTED - -/* - * Process some data in the context case. - */ - -METHODDEF(void) -pre_process_context (j_compress_ptr cinfo, - JSAMPARRAY input_buf, JDIMENSION *in_row_ctr, - JDIMENSION in_rows_avail, - JSAMPIMAGE output_buf, JDIMENSION *out_row_group_ctr, - JDIMENSION out_row_groups_avail) -{ - my_prep_ptr prep = (my_prep_ptr) cinfo->prep; - int numrows, ci; - int buf_height = cinfo->max_v_samp_factor * 3; - JDIMENSION inrows; - - while (*out_row_group_ctr < out_row_groups_avail) { - if (*in_row_ctr < in_rows_avail) { - /* Do color conversion to fill the conversion buffer. */ - inrows = in_rows_avail - *in_row_ctr; - numrows = prep->next_buf_stop - prep->next_buf_row; - numrows = (int) MIN((JDIMENSION) numrows, inrows); - (*cinfo->cconvert->color_convert) (cinfo, input_buf + *in_row_ctr, - prep->color_buf, - (JDIMENSION) prep->next_buf_row, - numrows); - /* Pad at top of image, if first time through */ - if (prep->rows_to_go == cinfo->image_height) { - for (ci = 0; ci < cinfo->num_components; ci++) { - int row; - for (row = 1; row <= cinfo->max_v_samp_factor; row++) { - jcopy_sample_rows(prep->color_buf[ci], 0, - prep->color_buf[ci], -row, - 1, cinfo->image_width); - } - } - } - *in_row_ctr += numrows; - prep->next_buf_row += numrows; - prep->rows_to_go -= numrows; - } else { - /* Return for more data, unless we are at the bottom of the image. */ - if (prep->rows_to_go != 0) - break; - /* When at bottom of image, pad to fill the conversion buffer. */ - if (prep->next_buf_row < prep->next_buf_stop) { - for (ci = 0; ci < cinfo->num_components; ci++) { - expand_bottom_edge(prep->color_buf[ci], cinfo->image_width, - prep->next_buf_row, prep->next_buf_stop); - } - prep->next_buf_row = prep->next_buf_stop; - } - } - /* If we've gotten enough data, downsample a row group. */ - if (prep->next_buf_row == prep->next_buf_stop) { - (*cinfo->downsample->downsample) (cinfo, - prep->color_buf, - (JDIMENSION) prep->this_row_group, - output_buf, *out_row_group_ctr); - (*out_row_group_ctr)++; - /* Advance pointers with wraparound as necessary. */ - prep->this_row_group += cinfo->max_v_samp_factor; - if (prep->this_row_group >= buf_height) - prep->this_row_group = 0; - if (prep->next_buf_row >= buf_height) - prep->next_buf_row = 0; - prep->next_buf_stop = prep->next_buf_row + cinfo->max_v_samp_factor; - } - } -} - - -/* - * Create the wrapped-around downsampling input buffer needed for context mode. - */ - -LOCAL(void) -create_context_buffer (j_compress_ptr cinfo) -{ - my_prep_ptr prep = (my_prep_ptr) cinfo->prep; - int rgroup_height = cinfo->max_v_samp_factor; - int ci, i; - jpeg_component_info * compptr; - JSAMPARRAY true_buffer, fake_buffer; - - /* Grab enough space for fake row pointers for all the components; - * we need five row groups' worth of pointers for each component. - */ - fake_buffer = (JSAMPARRAY) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - (cinfo->num_components * 5 * rgroup_height) * - SIZEOF(JSAMPROW)); - - for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components; - ci++, compptr++) { - /* Allocate the actual buffer space (3 row groups) for this component. - * We make the buffer wide enough to allow the downsampler to edge-expand - * horizontally within the buffer, if it so chooses. - */ - true_buffer = (*cinfo->mem->alloc_sarray) - ((j_common_ptr) cinfo, JPOOL_IMAGE, - (JDIMENSION) (((long) compptr->width_in_blocks * - cinfo->min_DCT_h_scaled_size * - cinfo->max_h_samp_factor) / compptr->h_samp_factor), - (JDIMENSION) (3 * rgroup_height)); - /* Copy true buffer row pointers into the middle of the fake row array */ - MEMCOPY(fake_buffer + rgroup_height, true_buffer, - 3 * rgroup_height * SIZEOF(JSAMPROW)); - /* Fill in the above and below wraparound pointers */ - for (i = 0; i < rgroup_height; i++) { - fake_buffer[i] = true_buffer[2 * rgroup_height + i]; - fake_buffer[4 * rgroup_height + i] = true_buffer[i]; - } - prep->color_buf[ci] = fake_buffer + rgroup_height; - fake_buffer += 5 * rgroup_height; /* point to space for next component */ - } -} - -#endif /* CONTEXT_ROWS_SUPPORTED */ - - -/* - * Initialize preprocessing controller. - */ - -GLOBAL(void) -jinit_c_prep_controller (j_compress_ptr cinfo, boolean need_full_buffer) -{ - my_prep_ptr prep; - int ci; - jpeg_component_info * compptr; - - if (need_full_buffer) /* safety check */ - ERREXIT(cinfo, JERR_BAD_BUFFER_MODE); - - prep = (my_prep_ptr) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - SIZEOF(my_prep_controller)); - cinfo->prep = (struct jpeg_c_prep_controller *) prep; - prep->pub.start_pass = start_pass_prep; - - /* Allocate the color conversion buffer. - * We make the buffer wide enough to allow the downsampler to edge-expand - * horizontally within the buffer, if it so chooses. - */ - if (cinfo->downsample->need_context_rows) { - /* Set up to provide context rows */ -#ifdef CONTEXT_ROWS_SUPPORTED - prep->pub.pre_process_data = pre_process_context; - create_context_buffer(cinfo); -#else - ERREXIT(cinfo, JERR_NOT_COMPILED); -#endif - } else { - /* No context, just make it tall enough for one row group */ - prep->pub.pre_process_data = pre_process_data; - for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components; - ci++, compptr++) { - prep->color_buf[ci] = (*cinfo->mem->alloc_sarray) - ((j_common_ptr) cinfo, JPOOL_IMAGE, - (JDIMENSION) (((long) compptr->width_in_blocks * - cinfo->min_DCT_h_scaled_size * - cinfo->max_h_samp_factor) / compptr->h_samp_factor), - (JDIMENSION) cinfo->max_v_samp_factor); - } - } -} diff --git a/jpg/jcsample.c b/jpg/jcsample.c deleted file mode 100644 index 4d36f85..0000000 --- a/jpg/jcsample.c +++ /dev/null @@ -1,545 +0,0 @@ -/* - * jcsample.c - * - * Copyright (C) 1991-1996, Thomas G. Lane. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file contains downsampling routines. - * - * Downsampling input data is counted in "row groups". A row group - * is defined to be max_v_samp_factor pixel rows of each component, - * from which the downsampler produces v_samp_factor sample rows. - * A single row group is processed in each call to the downsampler module. - * - * The downsampler is responsible for edge-expansion of its output data - * to fill an integral number of DCT blocks horizontally. The source buffer - * may be modified if it is helpful for this purpose (the source buffer is - * allocated wide enough to correspond to the desired output width). - * The caller (the prep controller) is responsible for vertical padding. - * - * The downsampler may request "context rows" by setting need_context_rows - * during startup. In this case, the input arrays will contain at least - * one row group's worth of pixels above and below the passed-in data; - * the caller will create dummy rows at image top and bottom by replicating - * the first or last real pixel row. - * - * An excellent reference for image resampling is - * Digital Image Warping, George Wolberg, 1990. - * Pub. by IEEE Computer Society Press, Los Alamitos, CA. ISBN 0-8186-8944-7. - * - * The downsampling algorithm used here is a simple average of the source - * pixels covered by the output pixel. The hi-falutin sampling literature - * refers to this as a "box filter". In general the characteristics of a box - * filter are not very good, but for the specific cases we normally use (1:1 - * and 2:1 ratios) the box is equivalent to a "triangle filter" which is not - * nearly so bad. If you intend to use other sampling ratios, you'd be well - * advised to improve this code. - * - * A simple input-smoothing capability is provided. This is mainly intended - * for cleaning up color-dithered GIF input files (if you find it inadequate, - * we suggest using an external filtering program such as pnmconvol). When - * enabled, each input pixel P is replaced by a weighted sum of itself and its - * eight neighbors. P's weight is 1-8*SF and each neighbor's weight is SF, - * where SF = (smoothing_factor / 1024). - * Currently, smoothing is only supported for 2h2v sampling factors. - */ - -#define JPEG_INTERNALS -#include "jinclude.h" -#include "jpeglib.h" - - -/* Pointer to routine to downsample a single component */ -typedef JMETHOD(void, downsample1_ptr, - (j_compress_ptr cinfo, jpeg_component_info * compptr, - JSAMPARRAY input_data, JSAMPARRAY output_data)); - -/* Private subobject */ - -typedef struct { - struct jpeg_downsampler pub; /* public fields */ - - /* Downsampling method pointers, one per component */ - downsample1_ptr methods[MAX_COMPONENTS]; - - /* Height of an output row group for each component. */ - int rowgroup_height[MAX_COMPONENTS]; - - /* These arrays save pixel expansion factors so that int_downsample need not - * recompute them each time. They are unused for other downsampling methods. - */ - UINT8 h_expand[MAX_COMPONENTS]; - UINT8 v_expand[MAX_COMPONENTS]; -} my_downsampler; - -typedef my_downsampler * my_downsample_ptr; - - -/* - * Initialize for a downsampling pass. - */ - -METHODDEF(void) -start_pass_downsample (j_compress_ptr cinfo) -{ - /* no work for now */ -} - - -/* - * Expand a component horizontally from width input_cols to width output_cols, - * by duplicating the rightmost samples. - */ - -LOCAL(void) -expand_right_edge (JSAMPARRAY image_data, int num_rows, - JDIMENSION input_cols, JDIMENSION output_cols) -{ - register JSAMPROW ptr; - register JSAMPLE pixval; - register int count; - int row; - int numcols = (int) (output_cols - input_cols); - - if (numcols > 0) { - for (row = 0; row < num_rows; row++) { - ptr = image_data[row] + input_cols; - pixval = ptr[-1]; /* don't need GETJSAMPLE() here */ - for (count = numcols; count > 0; count--) - *ptr++ = pixval; - } - } -} - - -/* - * Do downsampling for a whole row group (all components). - * - * In this version we simply downsample each component independently. - */ - -METHODDEF(void) -sep_downsample (j_compress_ptr cinfo, - JSAMPIMAGE input_buf, JDIMENSION in_row_index, - JSAMPIMAGE output_buf, JDIMENSION out_row_group_index) -{ - my_downsample_ptr downsample = (my_downsample_ptr) cinfo->downsample; - int ci; - jpeg_component_info * compptr; - JSAMPARRAY in_ptr, out_ptr; - - for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components; - ci++, compptr++) { - in_ptr = input_buf[ci] + in_row_index; - out_ptr = output_buf[ci] + - (out_row_group_index * downsample->rowgroup_height[ci]); - (*downsample->methods[ci]) (cinfo, compptr, in_ptr, out_ptr); - } -} - - -/* - * Downsample pixel values of a single component. - * One row group is processed per call. - * This version handles arbitrary integral sampling ratios, without smoothing. - * Note that this version is not actually used for customary sampling ratios. - */ - -METHODDEF(void) -int_downsample (j_compress_ptr cinfo, jpeg_component_info * compptr, - JSAMPARRAY input_data, JSAMPARRAY output_data) -{ - my_downsample_ptr downsample = (my_downsample_ptr) cinfo->downsample; - int inrow, outrow, h_expand, v_expand, numpix, numpix2, h, v; - JDIMENSION outcol, outcol_h; /* outcol_h == outcol*h_expand */ - JDIMENSION output_cols = compptr->width_in_blocks * compptr->DCT_h_scaled_size; - JSAMPROW inptr, outptr; - INT32 outvalue; - - h_expand = downsample->h_expand[compptr->component_index]; - v_expand = downsample->v_expand[compptr->component_index]; - numpix = h_expand * v_expand; - numpix2 = numpix/2; - - /* Expand input data enough to let all the output samples be generated - * by the standard loop. Special-casing padded output would be more - * efficient. - */ - expand_right_edge(input_data, cinfo->max_v_samp_factor, - cinfo->image_width, output_cols * h_expand); - - inrow = outrow = 0; - while (inrow < cinfo->max_v_samp_factor) { - outptr = output_data[outrow]; - for (outcol = 0, outcol_h = 0; outcol < output_cols; - outcol++, outcol_h += h_expand) { - outvalue = 0; - for (v = 0; v < v_expand; v++) { - inptr = input_data[inrow+v] + outcol_h; - for (h = 0; h < h_expand; h++) { - outvalue += (INT32) GETJSAMPLE(*inptr++); - } - } - *outptr++ = (JSAMPLE) ((outvalue + numpix2) / numpix); - } - inrow += v_expand; - outrow++; - } -} - - -/* - * Downsample pixel values of a single component. - * This version handles the special case of a full-size component, - * without smoothing. - */ - -METHODDEF(void) -fullsize_downsample (j_compress_ptr cinfo, jpeg_component_info * compptr, - JSAMPARRAY input_data, JSAMPARRAY output_data) -{ - /* Copy the data */ - jcopy_sample_rows(input_data, 0, output_data, 0, - cinfo->max_v_samp_factor, cinfo->image_width); - /* Edge-expand */ - expand_right_edge(output_data, cinfo->max_v_samp_factor, cinfo->image_width, - compptr->width_in_blocks * compptr->DCT_h_scaled_size); -} - - -/* - * Downsample pixel values of a single component. - * This version handles the common case of 2:1 horizontal and 1:1 vertical, - * without smoothing. - * - * A note about the "bias" calculations: when rounding fractional values to - * integer, we do not want to always round 0.5 up to the next integer. - * If we did that, we'd introduce a noticeable bias towards larger values. - * Instead, this code is arranged so that 0.5 will be rounded up or down at - * alternate pixel locations (a simple ordered dither pattern). - */ - -METHODDEF(void) -h2v1_downsample (j_compress_ptr cinfo, jpeg_component_info * compptr, - JSAMPARRAY input_data, JSAMPARRAY output_data) -{ - int inrow; - JDIMENSION outcol; - JDIMENSION output_cols = compptr->width_in_blocks * compptr->DCT_h_scaled_size; - register JSAMPROW inptr, outptr; - register int bias; - - /* Expand input data enough to let all the output samples be generated - * by the standard loop. Special-casing padded output would be more - * efficient. - */ - expand_right_edge(input_data, cinfo->max_v_samp_factor, - cinfo->image_width, output_cols * 2); - - for (inrow = 0; inrow < cinfo->max_v_samp_factor; inrow++) { - outptr = output_data[inrow]; - inptr = input_data[inrow]; - bias = 0; /* bias = 0,1,0,1,... for successive samples */ - for (outcol = 0; outcol < output_cols; outcol++) { - *outptr++ = (JSAMPLE) ((GETJSAMPLE(*inptr) + GETJSAMPLE(inptr[1]) - + bias) >> 1); - bias ^= 1; /* 0=>1, 1=>0 */ - inptr += 2; - } - } -} - - -/* - * Downsample pixel values of a single component. - * This version handles the standard case of 2:1 horizontal and 2:1 vertical, - * without smoothing. - */ - -METHODDEF(void) -h2v2_downsample (j_compress_ptr cinfo, jpeg_component_info * compptr, - JSAMPARRAY input_data, JSAMPARRAY output_data) -{ - int inrow, outrow; - JDIMENSION outcol; - JDIMENSION output_cols = compptr->width_in_blocks * compptr->DCT_h_scaled_size; - register JSAMPROW inptr0, inptr1, outptr; - register int bias; - - /* Expand input data enough to let all the output samples be generated - * by the standard loop. Special-casing padded output would be more - * efficient. - */ - expand_right_edge(input_data, cinfo->max_v_samp_factor, - cinfo->image_width, output_cols * 2); - - inrow = outrow = 0; - while (inrow < cinfo->max_v_samp_factor) { - outptr = output_data[outrow]; - inptr0 = input_data[inrow]; - inptr1 = input_data[inrow+1]; - bias = 1; /* bias = 1,2,1,2,... for successive samples */ - for (outcol = 0; outcol < output_cols; outcol++) { - *outptr++ = (JSAMPLE) ((GETJSAMPLE(*inptr0) + GETJSAMPLE(inptr0[1]) + - GETJSAMPLE(*inptr1) + GETJSAMPLE(inptr1[1]) - + bias) >> 2); - bias ^= 3; /* 1=>2, 2=>1 */ - inptr0 += 2; inptr1 += 2; - } - inrow += 2; - outrow++; - } -} - - -#ifdef INPUT_SMOOTHING_SUPPORTED - -/* - * Downsample pixel values of a single component. - * This version handles the standard case of 2:1 horizontal and 2:1 vertical, - * with smoothing. One row of context is required. - */ - -METHODDEF(void) -h2v2_smooth_downsample (j_compress_ptr cinfo, jpeg_component_info * compptr, - JSAMPARRAY input_data, JSAMPARRAY output_data) -{ - int inrow, outrow; - JDIMENSION colctr; - JDIMENSION output_cols = compptr->width_in_blocks * compptr->DCT_h_scaled_size; - register JSAMPROW inptr0, inptr1, above_ptr, below_ptr, outptr; - INT32 membersum, neighsum, memberscale, neighscale; - - /* Expand input data enough to let all the output samples be generated - * by the standard loop. Special-casing padded output would be more - * efficient. - */ - expand_right_edge(input_data - 1, cinfo->max_v_samp_factor + 2, - cinfo->image_width, output_cols * 2); - - /* We don't bother to form the individual "smoothed" input pixel values; - * we can directly compute the output which is the average of the four - * smoothed values. Each of the four member pixels contributes a fraction - * (1-8*SF) to its own smoothed image and a fraction SF to each of the three - * other smoothed pixels, therefore a total fraction (1-5*SF)/4 to the final - * output. The four corner-adjacent neighbor pixels contribute a fraction - * SF to just one smoothed pixel, or SF/4 to the final output; while the - * eight edge-adjacent neighbors contribute SF to each of two smoothed - * pixels, or SF/2 overall. In order to use integer arithmetic, these - * factors are scaled by 2^16 = 65536. - * Also recall that SF = smoothing_factor / 1024. - */ - - memberscale = 16384 - cinfo->smoothing_factor * 80; /* scaled (1-5*SF)/4 */ - neighscale = cinfo->smoothing_factor * 16; /* scaled SF/4 */ - - inrow = outrow = 0; - while (inrow < cinfo->max_v_samp_factor) { - outptr = output_data[outrow]; - inptr0 = input_data[inrow]; - inptr1 = input_data[inrow+1]; - above_ptr = input_data[inrow-1]; - below_ptr = input_data[inrow+2]; - - /* Special case for first column: pretend column -1 is same as column 0 */ - membersum = GETJSAMPLE(*inptr0) + GETJSAMPLE(inptr0[1]) + - GETJSAMPLE(*inptr1) + GETJSAMPLE(inptr1[1]); - neighsum = GETJSAMPLE(*above_ptr) + GETJSAMPLE(above_ptr[1]) + - GETJSAMPLE(*below_ptr) + GETJSAMPLE(below_ptr[1]) + - GETJSAMPLE(*inptr0) + GETJSAMPLE(inptr0[2]) + - GETJSAMPLE(*inptr1) + GETJSAMPLE(inptr1[2]); - neighsum += neighsum; - neighsum += GETJSAMPLE(*above_ptr) + GETJSAMPLE(above_ptr[2]) + - GETJSAMPLE(*below_ptr) + GETJSAMPLE(below_ptr[2]); - membersum = membersum * memberscale + neighsum * neighscale; - *outptr++ = (JSAMPLE) ((membersum + 32768) >> 16); - inptr0 += 2; inptr1 += 2; above_ptr += 2; below_ptr += 2; - - for (colctr = output_cols - 2; colctr > 0; colctr--) { - /* sum of pixels directly mapped to this output element */ - membersum = GETJSAMPLE(*inptr0) + GETJSAMPLE(inptr0[1]) + - GETJSAMPLE(*inptr1) + GETJSAMPLE(inptr1[1]); - /* sum of edge-neighbor pixels */ - neighsum = GETJSAMPLE(*above_ptr) + GETJSAMPLE(above_ptr[1]) + - GETJSAMPLE(*below_ptr) + GETJSAMPLE(below_ptr[1]) + - GETJSAMPLE(inptr0[-1]) + GETJSAMPLE(inptr0[2]) + - GETJSAMPLE(inptr1[-1]) + GETJSAMPLE(inptr1[2]); - /* The edge-neighbors count twice as much as corner-neighbors */ - neighsum += neighsum; - /* Add in the corner-neighbors */ - neighsum += GETJSAMPLE(above_ptr[-1]) + GETJSAMPLE(above_ptr[2]) + - GETJSAMPLE(below_ptr[-1]) + GETJSAMPLE(below_ptr[2]); - /* form final output scaled up by 2^16 */ - membersum = membersum * memberscale + neighsum * neighscale; - /* round, descale and output it */ - *outptr++ = (JSAMPLE) ((membersum + 32768) >> 16); - inptr0 += 2; inptr1 += 2; above_ptr += 2; below_ptr += 2; - } - - /* Special case for last column */ - membersum = GETJSAMPLE(*inptr0) + GETJSAMPLE(inptr0[1]) + - GETJSAMPLE(*inptr1) + GETJSAMPLE(inptr1[1]); - neighsum = GETJSAMPLE(*above_ptr) + GETJSAMPLE(above_ptr[1]) + - GETJSAMPLE(*below_ptr) + GETJSAMPLE(below_ptr[1]) + - GETJSAMPLE(inptr0[-1]) + GETJSAMPLE(inptr0[1]) + - GETJSAMPLE(inptr1[-1]) + GETJSAMPLE(inptr1[1]); - neighsum += neighsum; - neighsum += GETJSAMPLE(above_ptr[-1]) + GETJSAMPLE(above_ptr[1]) + - GETJSAMPLE(below_ptr[-1]) + GETJSAMPLE(below_ptr[1]); - membersum = membersum * memberscale + neighsum * neighscale; - *outptr = (JSAMPLE) ((membersum + 32768) >> 16); - - inrow += 2; - outrow++; - } -} - - -/* - * Downsample pixel values of a single component. - * This version handles the special case of a full-size component, - * with smoothing. One row of context is required. - */ - -METHODDEF(void) -fullsize_smooth_downsample (j_compress_ptr cinfo, jpeg_component_info *compptr, - JSAMPARRAY input_data, JSAMPARRAY output_data) -{ - int inrow; - JDIMENSION colctr; - JDIMENSION output_cols = compptr->width_in_blocks * compptr->DCT_h_scaled_size; - register JSAMPROW inptr, above_ptr, below_ptr, outptr; - INT32 membersum, neighsum, memberscale, neighscale; - int colsum, lastcolsum, nextcolsum; - - /* Expand input data enough to let all the output samples be generated - * by the standard loop. Special-casing padded output would be more - * efficient. - */ - expand_right_edge(input_data - 1, cinfo->max_v_samp_factor + 2, - cinfo->image_width, output_cols); - - /* Each of the eight neighbor pixels contributes a fraction SF to the - * smoothed pixel, while the main pixel contributes (1-8*SF). In order - * to use integer arithmetic, these factors are multiplied by 2^16 = 65536. - * Also recall that SF = smoothing_factor / 1024. - */ - - memberscale = 65536L - cinfo->smoothing_factor * 512L; /* scaled 1-8*SF */ - neighscale = cinfo->smoothing_factor * 64; /* scaled SF */ - - for (inrow = 0; inrow < cinfo->max_v_samp_factor; inrow++) { - outptr = output_data[inrow]; - inptr = input_data[inrow]; - above_ptr = input_data[inrow-1]; - below_ptr = input_data[inrow+1]; - - /* Special case for first column */ - colsum = GETJSAMPLE(*above_ptr++) + GETJSAMPLE(*below_ptr++) + - GETJSAMPLE(*inptr); - membersum = GETJSAMPLE(*inptr++); - nextcolsum = GETJSAMPLE(*above_ptr) + GETJSAMPLE(*below_ptr) + - GETJSAMPLE(*inptr); - neighsum = colsum + (colsum - membersum) + nextcolsum; - membersum = membersum * memberscale + neighsum * neighscale; - *outptr++ = (JSAMPLE) ((membersum + 32768) >> 16); - lastcolsum = colsum; colsum = nextcolsum; - - for (colctr = output_cols - 2; colctr > 0; colctr--) { - membersum = GETJSAMPLE(*inptr++); - above_ptr++; below_ptr++; - nextcolsum = GETJSAMPLE(*above_ptr) + GETJSAMPLE(*below_ptr) + - GETJSAMPLE(*inptr); - neighsum = lastcolsum + (colsum - membersum) + nextcolsum; - membersum = membersum * memberscale + neighsum * neighscale; - *outptr++ = (JSAMPLE) ((membersum + 32768) >> 16); - lastcolsum = colsum; colsum = nextcolsum; - } - - /* Special case for last column */ - membersum = GETJSAMPLE(*inptr); - neighsum = lastcolsum + (colsum - membersum) + colsum; - membersum = membersum * memberscale + neighsum * neighscale; - *outptr = (JSAMPLE) ((membersum + 32768) >> 16); - - } -} - -#endif /* INPUT_SMOOTHING_SUPPORTED */ - - -/* - * Module initialization routine for downsampling. - * Note that we must select a routine for each component. - */ - -GLOBAL(void) -jinit_downsampler (j_compress_ptr cinfo) -{ - my_downsample_ptr downsample; - int ci; - jpeg_component_info * compptr; - boolean smoothok = TRUE; - int h_in_group, v_in_group, h_out_group, v_out_group; - - downsample = (my_downsample_ptr) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - SIZEOF(my_downsampler)); - cinfo->downsample = (struct jpeg_downsampler *) downsample; - downsample->pub.start_pass = start_pass_downsample; - downsample->pub.downsample = sep_downsample; - downsample->pub.need_context_rows = FALSE; - - if (cinfo->CCIR601_sampling) - ERREXIT(cinfo, JERR_CCIR601_NOTIMPL); - - /* Verify we can handle the sampling factors, and set up method pointers */ - for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components; - ci++, compptr++) { - /* Compute size of an "output group" for DCT scaling. This many samples - * are to be converted from max_h_samp_factor * max_v_samp_factor pixels. - */ - h_out_group = (compptr->h_samp_factor * compptr->DCT_h_scaled_size) / - cinfo->min_DCT_h_scaled_size; - v_out_group = (compptr->v_samp_factor * compptr->DCT_v_scaled_size) / - cinfo->min_DCT_v_scaled_size; - h_in_group = cinfo->max_h_samp_factor; - v_in_group = cinfo->max_v_samp_factor; - downsample->rowgroup_height[ci] = v_out_group; /* save for use later */ - if (h_in_group == h_out_group && v_in_group == v_out_group) { -#ifdef INPUT_SMOOTHING_SUPPORTED - if (cinfo->smoothing_factor) { - downsample->methods[ci] = fullsize_smooth_downsample; - downsample->pub.need_context_rows = TRUE; - } else -#endif - downsample->methods[ci] = fullsize_downsample; - } else if (h_in_group == h_out_group * 2 && - v_in_group == v_out_group) { - smoothok = FALSE; - downsample->methods[ci] = h2v1_downsample; - } else if (h_in_group == h_out_group * 2 && - v_in_group == v_out_group * 2) { -#ifdef INPUT_SMOOTHING_SUPPORTED - if (cinfo->smoothing_factor) { - downsample->methods[ci] = h2v2_smooth_downsample; - downsample->pub.need_context_rows = TRUE; - } else -#endif - downsample->methods[ci] = h2v2_downsample; - } else if ((h_in_group % h_out_group) == 0 && - (v_in_group % v_out_group) == 0) { - smoothok = FALSE; - downsample->methods[ci] = int_downsample; - downsample->h_expand[ci] = (UINT8) (h_in_group / h_out_group); - downsample->v_expand[ci] = (UINT8) (v_in_group / v_out_group); - } else - ERREXIT(cinfo, JERR_FRACT_SAMPLE_NOTIMPL); - } - -#ifdef INPUT_SMOOTHING_SUPPORTED - if (cinfo->smoothing_factor && !smoothok) - TRACEMS(cinfo, 0, JTRC_SMOOTH_NOTIMPL); -#endif -} diff --git a/jpg/jctrans.c b/jpg/jctrans.c deleted file mode 100644 index f7d7b81..0000000 --- a/jpg/jctrans.c +++ /dev/null @@ -1,382 +0,0 @@ -/* - * jctrans.c - * - * Copyright (C) 1995-1998, Thomas G. Lane. - * Modified 2000-2011 by Guido Vollbeding. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file contains library routines for transcoding compression, - * that is, writing raw DCT coefficient arrays to an output JPEG file. - * The routines in jcapimin.c will also be needed by a transcoder. - */ - -#define JPEG_INTERNALS -#include "jinclude.h" -#include "jpeglib.h" - - -/* Forward declarations */ -LOCAL(void) transencode_master_selection - JPP((j_compress_ptr cinfo, jvirt_barray_ptr * coef_arrays)); -LOCAL(void) transencode_coef_controller - JPP((j_compress_ptr cinfo, jvirt_barray_ptr * coef_arrays)); - - -/* - * Compression initialization for writing raw-coefficient data. - * Before calling this, all parameters and a data destination must be set up. - * Call jpeg_finish_compress() to actually write the data. - * - * The number of passed virtual arrays must match cinfo->num_components. - * Note that the virtual arrays need not be filled or even realized at - * the time write_coefficients is called; indeed, if the virtual arrays - * were requested from this compression object's memory manager, they - * typically will be realized during this routine and filled afterwards. - */ - -GLOBAL(void) -jpeg_write_coefficients (j_compress_ptr cinfo, jvirt_barray_ptr * coef_arrays) -{ - if (cinfo->global_state != CSTATE_START) - ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state); - /* Mark all tables to be written */ - jpeg_suppress_tables(cinfo, FALSE); - /* (Re)initialize error mgr and destination modules */ - (*cinfo->err->reset_error_mgr) ((j_common_ptr) cinfo); - (*cinfo->dest->init_destination) (cinfo); - /* Perform master selection of active modules */ - transencode_master_selection(cinfo, coef_arrays); - /* Wait for jpeg_finish_compress() call */ - cinfo->next_scanline = 0; /* so jpeg_write_marker works */ - cinfo->global_state = CSTATE_WRCOEFS; -} - - -/* - * Initialize the compression object with default parameters, - * then copy from the source object all parameters needed for lossless - * transcoding. Parameters that can be varied without loss (such as - * scan script and Huffman optimization) are left in their default states. - */ - -GLOBAL(void) -jpeg_copy_critical_parameters (j_decompress_ptr srcinfo, - j_compress_ptr dstinfo) -{ - JQUANT_TBL ** qtblptr; - jpeg_component_info *incomp, *outcomp; - JQUANT_TBL *c_quant, *slot_quant; - int tblno, ci, coefi; - - /* Safety check to ensure start_compress not called yet. */ - if (dstinfo->global_state != CSTATE_START) - ERREXIT1(dstinfo, JERR_BAD_STATE, dstinfo->global_state); - /* Copy fundamental image dimensions */ - dstinfo->image_width = srcinfo->image_width; - dstinfo->image_height = srcinfo->image_height; - dstinfo->input_components = srcinfo->num_components; - dstinfo->in_color_space = srcinfo->jpeg_color_space; - dstinfo->jpeg_width = srcinfo->output_width; - dstinfo->jpeg_height = srcinfo->output_height; - dstinfo->min_DCT_h_scaled_size = srcinfo->min_DCT_h_scaled_size; - dstinfo->min_DCT_v_scaled_size = srcinfo->min_DCT_v_scaled_size; - /* Initialize all parameters to default values */ - jpeg_set_defaults(dstinfo); - /* jpeg_set_defaults may choose wrong colorspace, eg YCbCr if input is RGB. - * Fix it to get the right header markers for the image colorspace. - */ - jpeg_set_colorspace(dstinfo, srcinfo->jpeg_color_space); - dstinfo->data_precision = srcinfo->data_precision; - dstinfo->CCIR601_sampling = srcinfo->CCIR601_sampling; - /* Copy the source's quantization tables. */ - for (tblno = 0; tblno < NUM_QUANT_TBLS; tblno++) { - if (srcinfo->quant_tbl_ptrs[tblno] != NULL) { - qtblptr = & dstinfo->quant_tbl_ptrs[tblno]; - if (*qtblptr == NULL) - *qtblptr = jpeg_alloc_quant_table((j_common_ptr) dstinfo); - MEMCOPY((*qtblptr)->quantval, - srcinfo->quant_tbl_ptrs[tblno]->quantval, - SIZEOF((*qtblptr)->quantval)); - (*qtblptr)->sent_table = FALSE; - } - } - /* Copy the source's per-component info. - * Note we assume jpeg_set_defaults has allocated the dest comp_info array. - */ - dstinfo->num_components = srcinfo->num_components; - if (dstinfo->num_components < 1 || dstinfo->num_components > MAX_COMPONENTS) - ERREXIT2(dstinfo, JERR_COMPONENT_COUNT, dstinfo->num_components, - MAX_COMPONENTS); - for (ci = 0, incomp = srcinfo->comp_info, outcomp = dstinfo->comp_info; - ci < dstinfo->num_components; ci++, incomp++, outcomp++) { - outcomp->component_id = incomp->component_id; - outcomp->h_samp_factor = incomp->h_samp_factor; - outcomp->v_samp_factor = incomp->v_samp_factor; - outcomp->quant_tbl_no = incomp->quant_tbl_no; - /* Make sure saved quantization table for component matches the qtable - * slot. If not, the input file re-used this qtable slot. - * IJG encoder currently cannot duplicate this. - */ - tblno = outcomp->quant_tbl_no; - if (tblno < 0 || tblno >= NUM_QUANT_TBLS || - srcinfo->quant_tbl_ptrs[tblno] == NULL) - ERREXIT1(dstinfo, JERR_NO_QUANT_TABLE, tblno); - slot_quant = srcinfo->quant_tbl_ptrs[tblno]; - c_quant = incomp->quant_table; - if (c_quant != NULL) { - for (coefi = 0; coefi < DCTSIZE2; coefi++) { - if (c_quant->quantval[coefi] != slot_quant->quantval[coefi]) - ERREXIT1(dstinfo, JERR_MISMATCHED_QUANT_TABLE, tblno); - } - } - /* Note: we do not copy the source's Huffman table assignments; - * instead we rely on jpeg_set_colorspace to have made a suitable choice. - */ - } - /* Also copy JFIF version and resolution information, if available. - * Strictly speaking this isn't "critical" info, but it's nearly - * always appropriate to copy it if available. In particular, - * if the application chooses to copy JFIF 1.02 extension markers from - * the source file, we need to copy the version to make sure we don't - * emit a file that has 1.02 extensions but a claimed version of 1.01. - * We will *not*, however, copy version info from mislabeled "2.01" files. - */ - if (srcinfo->saw_JFIF_marker) { - if (srcinfo->JFIF_major_version == 1) { - dstinfo->JFIF_major_version = srcinfo->JFIF_major_version; - dstinfo->JFIF_minor_version = srcinfo->JFIF_minor_version; - } - dstinfo->density_unit = srcinfo->density_unit; - dstinfo->X_density = srcinfo->X_density; - dstinfo->Y_density = srcinfo->Y_density; - } -} - - -/* - * Master selection of compression modules for transcoding. - * This substitutes for jcinit.c's initialization of the full compressor. - */ - -LOCAL(void) -transencode_master_selection (j_compress_ptr cinfo, - jvirt_barray_ptr * coef_arrays) -{ - /* Initialize master control (includes parameter checking/processing) */ - jinit_c_master_control(cinfo, TRUE /* transcode only */); - - /* Entropy encoding: either Huffman or arithmetic coding. */ - if (cinfo->arith_code) - jinit_arith_encoder(cinfo); - else { - jinit_huff_encoder(cinfo); - } - - /* We need a special coefficient buffer controller. */ - transencode_coef_controller(cinfo, coef_arrays); - - jinit_marker_writer(cinfo); - - /* We can now tell the memory manager to allocate virtual arrays. */ - (*cinfo->mem->realize_virt_arrays) ((j_common_ptr) cinfo); - - /* Write the datastream header (SOI, JFIF) immediately. - * Frame and scan headers are postponed till later. - * This lets application insert special markers after the SOI. - */ - (*cinfo->marker->write_file_header) (cinfo); -} - - -/* - * The rest of this file is a special implementation of the coefficient - * buffer controller. This is similar to jccoefct.c, but it handles only - * output from presupplied virtual arrays. Furthermore, we generate any - * dummy padding blocks on-the-fly rather than expecting them to be present - * in the arrays. - */ - -/* Private buffer controller object */ - -typedef struct { - struct jpeg_c_coef_controller pub; /* public fields */ - - JDIMENSION iMCU_row_num; /* iMCU row # within image */ - JDIMENSION mcu_ctr; /* counts MCUs processed in current row */ - int MCU_vert_offset; /* counts MCU rows within iMCU row */ - int MCU_rows_per_iMCU_row; /* number of such rows needed */ - - /* Virtual block array for each component. */ - jvirt_barray_ptr * whole_image; - - /* Workspace for constructing dummy blocks at right/bottom edges. */ - JBLOCKROW dummy_buffer[C_MAX_BLOCKS_IN_MCU]; -} my_coef_controller; - -typedef my_coef_controller * my_coef_ptr; - - -LOCAL(void) -start_iMCU_row (j_compress_ptr cinfo) -/* Reset within-iMCU-row counters for a new row */ -{ - my_coef_ptr coef = (my_coef_ptr) cinfo->coef; - - /* In an interleaved scan, an MCU row is the same as an iMCU row. - * In a noninterleaved scan, an iMCU row has v_samp_factor MCU rows. - * But at the bottom of the image, process only what's left. - */ - if (cinfo->comps_in_scan > 1) { - coef->MCU_rows_per_iMCU_row = 1; - } else { - if (coef->iMCU_row_num < (cinfo->total_iMCU_rows-1)) - coef->MCU_rows_per_iMCU_row = cinfo->cur_comp_info[0]->v_samp_factor; - else - coef->MCU_rows_per_iMCU_row = cinfo->cur_comp_info[0]->last_row_height; - } - - coef->mcu_ctr = 0; - coef->MCU_vert_offset = 0; -} - - -/* - * Initialize for a processing pass. - */ - -METHODDEF(void) -start_pass_coef (j_compress_ptr cinfo, J_BUF_MODE pass_mode) -{ - my_coef_ptr coef = (my_coef_ptr) cinfo->coef; - - if (pass_mode != JBUF_CRANK_DEST) - ERREXIT(cinfo, JERR_BAD_BUFFER_MODE); - - coef->iMCU_row_num = 0; - start_iMCU_row(cinfo); -} - - -/* - * Process some data. - * We process the equivalent of one fully interleaved MCU row ("iMCU" row) - * per call, ie, v_samp_factor block rows for each component in the scan. - * The data is obtained from the virtual arrays and fed to the entropy coder. - * Returns TRUE if the iMCU row is completed, FALSE if suspended. - * - * NB: input_buf is ignored; it is likely to be a NULL pointer. - */ - -METHODDEF(boolean) -compress_output (j_compress_ptr cinfo, JSAMPIMAGE input_buf) -{ - my_coef_ptr coef = (my_coef_ptr) cinfo->coef; - JDIMENSION MCU_col_num; /* index of current MCU within row */ - JDIMENSION last_MCU_col = cinfo->MCUs_per_row - 1; - JDIMENSION last_iMCU_row = cinfo->total_iMCU_rows - 1; - int blkn, ci, xindex, yindex, yoffset, blockcnt; - JDIMENSION start_col; - JBLOCKARRAY buffer[MAX_COMPS_IN_SCAN]; - JBLOCKROW MCU_buffer[C_MAX_BLOCKS_IN_MCU]; - JBLOCKROW buffer_ptr; - jpeg_component_info *compptr; - - /* Align the virtual buffers for the components used in this scan. */ - for (ci = 0; ci < cinfo->comps_in_scan; ci++) { - compptr = cinfo->cur_comp_info[ci]; - buffer[ci] = (*cinfo->mem->access_virt_barray) - ((j_common_ptr) cinfo, coef->whole_image[compptr->component_index], - coef->iMCU_row_num * compptr->v_samp_factor, - (JDIMENSION) compptr->v_samp_factor, FALSE); - } - - /* Loop to process one whole iMCU row */ - for (yoffset = coef->MCU_vert_offset; yoffset < coef->MCU_rows_per_iMCU_row; - yoffset++) { - for (MCU_col_num = coef->mcu_ctr; MCU_col_num < cinfo->MCUs_per_row; - MCU_col_num++) { - /* Construct list of pointers to DCT blocks belonging to this MCU */ - blkn = 0; /* index of current DCT block within MCU */ - for (ci = 0; ci < cinfo->comps_in_scan; ci++) { - compptr = cinfo->cur_comp_info[ci]; - start_col = MCU_col_num * compptr->MCU_width; - blockcnt = (MCU_col_num < last_MCU_col) ? compptr->MCU_width - : compptr->last_col_width; - for (yindex = 0; yindex < compptr->MCU_height; yindex++) { - if (coef->iMCU_row_num < last_iMCU_row || - yindex+yoffset < compptr->last_row_height) { - /* Fill in pointers to real blocks in this row */ - buffer_ptr = buffer[ci][yindex+yoffset] + start_col; - for (xindex = 0; xindex < blockcnt; xindex++) - MCU_buffer[blkn++] = buffer_ptr++; - } else { - /* At bottom of image, need a whole row of dummy blocks */ - xindex = 0; - } - /* Fill in any dummy blocks needed in this row. - * Dummy blocks are filled in the same way as in jccoefct.c: - * all zeroes in the AC entries, DC entries equal to previous - * block's DC value. The init routine has already zeroed the - * AC entries, so we need only set the DC entries correctly. - */ - for (; xindex < compptr->MCU_width; xindex++) { - MCU_buffer[blkn] = coef->dummy_buffer[blkn]; - MCU_buffer[blkn][0][0] = MCU_buffer[blkn-1][0][0]; - blkn++; - } - } - } - /* Try to write the MCU. */ - if (! (*cinfo->entropy->encode_mcu) (cinfo, MCU_buffer)) { - /* Suspension forced; update state counters and exit */ - coef->MCU_vert_offset = yoffset; - coef->mcu_ctr = MCU_col_num; - return FALSE; - } - } - /* Completed an MCU row, but perhaps not an iMCU row */ - coef->mcu_ctr = 0; - } - /* Completed the iMCU row, advance counters for next one */ - coef->iMCU_row_num++; - start_iMCU_row(cinfo); - return TRUE; -} - - -/* - * Initialize coefficient buffer controller. - * - * Each passed coefficient array must be the right size for that - * coefficient: width_in_blocks wide and height_in_blocks high, - * with unitheight at least v_samp_factor. - */ - -LOCAL(void) -transencode_coef_controller (j_compress_ptr cinfo, - jvirt_barray_ptr * coef_arrays) -{ - my_coef_ptr coef; - JBLOCKROW buffer; - int i; - - coef = (my_coef_ptr) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - SIZEOF(my_coef_controller)); - cinfo->coef = (struct jpeg_c_coef_controller *) coef; - coef->pub.start_pass = start_pass_coef; - coef->pub.compress_data = compress_output; - - /* Save pointer to virtual arrays */ - coef->whole_image = coef_arrays; - - /* Allocate and pre-zero space for dummy DCT blocks. */ - buffer = (JBLOCKROW) - (*cinfo->mem->alloc_large) ((j_common_ptr) cinfo, JPOOL_IMAGE, - C_MAX_BLOCKS_IN_MCU * SIZEOF(JBLOCK)); - FMEMZERO((void FAR *) buffer, C_MAX_BLOCKS_IN_MCU * SIZEOF(JBLOCK)); - for (i = 0; i < C_MAX_BLOCKS_IN_MCU; i++) { - coef->dummy_buffer[i] = buffer + i; - } -} diff --git a/jpg/jdapimin.c b/jpg/jdapimin.c deleted file mode 100644 index 7f1ce4c..0000000 --- a/jpg/jdapimin.c +++ /dev/null @@ -1,396 +0,0 @@ -/* - * jdapimin.c - * - * Copyright (C) 1994-1998, Thomas G. Lane. - * Modified 2009 by Guido Vollbeding. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file contains application interface code for the decompression half - * of the JPEG library. These are the "minimum" API routines that may be - * needed in either the normal full-decompression case or the - * transcoding-only case. - * - * Most of the routines intended to be called directly by an application - * are in this file or in jdapistd.c. But also see jcomapi.c for routines - * shared by compression and decompression, and jdtrans.c for the transcoding - * case. - */ - -#define JPEG_INTERNALS -#include "jinclude.h" -#include "jpeglib.h" - - -/* - * Initialization of a JPEG decompression object. - * The error manager must already be set up (in case memory manager fails). - */ - -GLOBAL(void) -jpeg_CreateDecompress (j_decompress_ptr cinfo, int version, size_t structsize) -{ - int i; - - /* Guard against version mismatches between library and caller. */ - cinfo->mem = NULL; /* so jpeg_destroy knows mem mgr not called */ - if (version != JPEG_LIB_VERSION) - ERREXIT2(cinfo, JERR_BAD_LIB_VERSION, JPEG_LIB_VERSION, version); - if (structsize != SIZEOF(struct jpeg_decompress_struct)) - ERREXIT2(cinfo, JERR_BAD_STRUCT_SIZE, - (int) SIZEOF(struct jpeg_decompress_struct), (int) structsize); - - /* For debugging purposes, we zero the whole master structure. - * But the application has already set the err pointer, and may have set - * client_data, so we have to save and restore those fields. - * Note: if application hasn't set client_data, tools like Purify may - * complain here. - */ - { - struct jpeg_error_mgr * err = cinfo->err; - void * client_data = cinfo->client_data; /* ignore Purify complaint here */ - MEMZERO(cinfo, SIZEOF(struct jpeg_decompress_struct)); - cinfo->err = err; - cinfo->client_data = client_data; - } - cinfo->is_decompressor = TRUE; - - /* Initialize a memory manager instance for this object */ - jinit_memory_mgr((j_common_ptr) cinfo); - - /* Zero out pointers to permanent structures. */ - cinfo->progress = NULL; - cinfo->src = NULL; - - for (i = 0; i < NUM_QUANT_TBLS; i++) - cinfo->quant_tbl_ptrs[i] = NULL; - - for (i = 0; i < NUM_HUFF_TBLS; i++) { - cinfo->dc_huff_tbl_ptrs[i] = NULL; - cinfo->ac_huff_tbl_ptrs[i] = NULL; - } - - /* Initialize marker processor so application can override methods - * for COM, APPn markers before calling jpeg_read_header. - */ - cinfo->marker_list = NULL; - jinit_marker_reader(cinfo); - - /* And initialize the overall input controller. */ - jinit_input_controller(cinfo); - - /* OK, I'm ready */ - cinfo->global_state = DSTATE_START; -} - - -/* - * Destruction of a JPEG decompression object - */ - -GLOBAL(void) -jpeg_destroy_decompress (j_decompress_ptr cinfo) -{ - jpeg_destroy((j_common_ptr) cinfo); /* use common routine */ -} - - -/* - * Abort processing of a JPEG decompression operation, - * but don't destroy the object itself. - */ - -GLOBAL(void) -jpeg_abort_decompress (j_decompress_ptr cinfo) -{ - jpeg_abort((j_common_ptr) cinfo); /* use common routine */ -} - - -/* - * Set default decompression parameters. - */ - -LOCAL(void) -default_decompress_parms (j_decompress_ptr cinfo) -{ - /* Guess the input colorspace, and set output colorspace accordingly. */ - /* (Wish JPEG committee had provided a real way to specify this...) */ - /* Note application may override our guesses. */ - switch (cinfo->num_components) { - case 1: - cinfo->jpeg_color_space = JCS_GRAYSCALE; - cinfo->out_color_space = JCS_GRAYSCALE; - break; - - case 3: - if (cinfo->saw_JFIF_marker) { - cinfo->jpeg_color_space = JCS_YCbCr; /* JFIF implies YCbCr */ - } else if (cinfo->saw_Adobe_marker) { - switch (cinfo->Adobe_transform) { - case 0: - cinfo->jpeg_color_space = JCS_RGB; - break; - case 1: - cinfo->jpeg_color_space = JCS_YCbCr; - break; - default: - WARNMS1(cinfo, JWRN_ADOBE_XFORM, cinfo->Adobe_transform); - cinfo->jpeg_color_space = JCS_YCbCr; /* assume it's YCbCr */ - break; - } - } else { - /* Saw no special markers, try to guess from the component IDs */ - int cid0 = cinfo->comp_info[0].component_id; - int cid1 = cinfo->comp_info[1].component_id; - int cid2 = cinfo->comp_info[2].component_id; - - if (cid0 == 1 && cid1 == 2 && cid2 == 3) - cinfo->jpeg_color_space = JCS_YCbCr; /* assume JFIF w/out marker */ - else if (cid0 == 82 && cid1 == 71 && cid2 == 66) - cinfo->jpeg_color_space = JCS_RGB; /* ASCII 'R', 'G', 'B' */ - else { - TRACEMS3(cinfo, 1, JTRC_UNKNOWN_IDS, cid0, cid1, cid2); - cinfo->jpeg_color_space = JCS_YCbCr; /* assume it's YCbCr */ - } - } - /* Always guess RGB is proper output colorspace. */ - cinfo->out_color_space = JCS_RGB; - break; - - case 4: - if (cinfo->saw_Adobe_marker) { - switch (cinfo->Adobe_transform) { - case 0: - cinfo->jpeg_color_space = JCS_CMYK; - break; - case 2: - cinfo->jpeg_color_space = JCS_YCCK; - break; - default: - WARNMS1(cinfo, JWRN_ADOBE_XFORM, cinfo->Adobe_transform); - cinfo->jpeg_color_space = JCS_YCCK; /* assume it's YCCK */ - break; - } - } else { - /* No special markers, assume straight CMYK. */ - cinfo->jpeg_color_space = JCS_CMYK; - } - cinfo->out_color_space = JCS_CMYK; - break; - - default: - cinfo->jpeg_color_space = JCS_UNKNOWN; - cinfo->out_color_space = JCS_UNKNOWN; - break; - } - - /* Set defaults for other decompression parameters. */ - cinfo->scale_num = cinfo->block_size; /* 1:1 scaling */ - cinfo->scale_denom = cinfo->block_size; - cinfo->output_gamma = 1.0; - cinfo->buffered_image = FALSE; - cinfo->raw_data_out = FALSE; - cinfo->dct_method = JDCT_DEFAULT; - cinfo->do_fancy_upsampling = TRUE; - cinfo->do_block_smoothing = TRUE; - cinfo->quantize_colors = FALSE; - /* We set these in case application only sets quantize_colors. */ - cinfo->dither_mode = JDITHER_FS; -#ifdef QUANT_2PASS_SUPPORTED - cinfo->two_pass_quantize = TRUE; -#else - cinfo->two_pass_quantize = FALSE; -#endif - cinfo->desired_number_of_colors = 256; - cinfo->colormap = NULL; - /* Initialize for no mode change in buffered-image mode. */ - cinfo->enable_1pass_quant = FALSE; - cinfo->enable_external_quant = FALSE; - cinfo->enable_2pass_quant = FALSE; -} - - -/* - * Decompression startup: read start of JPEG datastream to see what's there. - * Need only initialize JPEG object and supply a data source before calling. - * - * This routine will read as far as the first SOS marker (ie, actual start of - * compressed data), and will save all tables and parameters in the JPEG - * object. It will also initialize the decompression parameters to default - * values, and finally return JPEG_HEADER_OK. On return, the application may - * adjust the decompression parameters and then call jpeg_start_decompress. - * (Or, if the application only wanted to determine the image parameters, - * the data need not be decompressed. In that case, call jpeg_abort or - * jpeg_destroy to release any temporary space.) - * If an abbreviated (tables only) datastream is presented, the routine will - * return JPEG_HEADER_TABLES_ONLY upon reaching EOI. The application may then - * re-use the JPEG object to read the abbreviated image datastream(s). - * It is unnecessary (but OK) to call jpeg_abort in this case. - * The JPEG_SUSPENDED return code only occurs if the data source module - * requests suspension of the decompressor. In this case the application - * should load more source data and then re-call jpeg_read_header to resume - * processing. - * If a non-suspending data source is used and require_image is TRUE, then the - * return code need not be inspected since only JPEG_HEADER_OK is possible. - * - * This routine is now just a front end to jpeg_consume_input, with some - * extra error checking. - */ - -GLOBAL(int) -jpeg_read_header (j_decompress_ptr cinfo, boolean require_image) -{ - int retcode; - - if (cinfo->global_state != DSTATE_START && - cinfo->global_state != DSTATE_INHEADER) - ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state); - - retcode = jpeg_consume_input(cinfo); - - switch (retcode) { - case JPEG_REACHED_SOS: - retcode = JPEG_HEADER_OK; - break; - case JPEG_REACHED_EOI: - if (require_image) /* Complain if application wanted an image */ - ERREXIT(cinfo, JERR_NO_IMAGE); - /* Reset to start state; it would be safer to require the application to - * call jpeg_abort, but we can't change it now for compatibility reasons. - * A side effect is to free any temporary memory (there shouldn't be any). - */ - jpeg_abort((j_common_ptr) cinfo); /* sets state = DSTATE_START */ - retcode = JPEG_HEADER_TABLES_ONLY; - break; - case JPEG_SUSPENDED: - /* no work */ - break; - } - - return retcode; -} - - -/* - * Consume data in advance of what the decompressor requires. - * This can be called at any time once the decompressor object has - * been created and a data source has been set up. - * - * This routine is essentially a state machine that handles a couple - * of critical state-transition actions, namely initial setup and - * transition from header scanning to ready-for-start_decompress. - * All the actual input is done via the input controller's consume_input - * method. - */ - -GLOBAL(int) -jpeg_consume_input (j_decompress_ptr cinfo) -{ - int retcode = JPEG_SUSPENDED; - - /* NB: every possible DSTATE value should be listed in this switch */ - switch (cinfo->global_state) { - case DSTATE_START: - /* Start-of-datastream actions: reset appropriate modules */ - (*cinfo->inputctl->reset_input_controller) (cinfo); - /* Initialize application's data source module */ - (*cinfo->src->init_source) (cinfo); - cinfo->global_state = DSTATE_INHEADER; - /*FALLTHROUGH*/ - case DSTATE_INHEADER: - retcode = (*cinfo->inputctl->consume_input) (cinfo); - if (retcode == JPEG_REACHED_SOS) { /* Found SOS, prepare to decompress */ - /* Set up default parameters based on header data */ - default_decompress_parms(cinfo); - /* Set global state: ready for start_decompress */ - cinfo->global_state = DSTATE_READY; - } - break; - case DSTATE_READY: - /* Can't advance past first SOS until start_decompress is called */ - retcode = JPEG_REACHED_SOS; - break; - case DSTATE_PRELOAD: - case DSTATE_PRESCAN: - case DSTATE_SCANNING: - case DSTATE_RAW_OK: - case DSTATE_BUFIMAGE: - case DSTATE_BUFPOST: - case DSTATE_STOPPING: - retcode = (*cinfo->inputctl->consume_input) (cinfo); - break; - default: - ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state); - } - return retcode; -} - - -/* - * Have we finished reading the input file? - */ - -GLOBAL(boolean) -jpeg_input_complete (j_decompress_ptr cinfo) -{ - /* Check for valid jpeg object */ - if (cinfo->global_state < DSTATE_START || - cinfo->global_state > DSTATE_STOPPING) - ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state); - return cinfo->inputctl->eoi_reached; -} - - -/* - * Is there more than one scan? - */ - -GLOBAL(boolean) -jpeg_has_multiple_scans (j_decompress_ptr cinfo) -{ - /* Only valid after jpeg_read_header completes */ - if (cinfo->global_state < DSTATE_READY || - cinfo->global_state > DSTATE_STOPPING) - ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state); - return cinfo->inputctl->has_multiple_scans; -} - - -/* - * Finish JPEG decompression. - * - * This will normally just verify the file trailer and release temp storage. - * - * Returns FALSE if suspended. The return value need be inspected only if - * a suspending data source is used. - */ - -GLOBAL(boolean) -jpeg_finish_decompress (j_decompress_ptr cinfo) -{ - if ((cinfo->global_state == DSTATE_SCANNING || - cinfo->global_state == DSTATE_RAW_OK) && ! cinfo->buffered_image) { - /* Terminate final pass of non-buffered mode */ - if (cinfo->output_scanline < cinfo->output_height) - ERREXIT(cinfo, JERR_TOO_LITTLE_DATA); - (*cinfo->master->finish_output_pass) (cinfo); - cinfo->global_state = DSTATE_STOPPING; - } else if (cinfo->global_state == DSTATE_BUFIMAGE) { - /* Finishing after a buffered-image operation */ - cinfo->global_state = DSTATE_STOPPING; - } else if (cinfo->global_state != DSTATE_STOPPING) { - /* STOPPING = repeat call after a suspension, anything else is error */ - ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state); - } - /* Read until EOI */ - while (! cinfo->inputctl->eoi_reached) { - if ((*cinfo->inputctl->consume_input) (cinfo) == JPEG_SUSPENDED) - return FALSE; /* Suspend, come back later */ - } - /* Do final cleanup */ - (*cinfo->src->term_source) (cinfo); - /* We can use jpeg_abort to release memory and reset global_state */ - jpeg_abort((j_common_ptr) cinfo); - return TRUE; -} diff --git a/jpg/jdapistd.c b/jpg/jdapistd.c deleted file mode 100644 index 9d74537..0000000 --- a/jpg/jdapistd.c +++ /dev/null @@ -1,275 +0,0 @@ -/* - * jdapistd.c - * - * Copyright (C) 1994-1996, Thomas G. Lane. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file contains application interface code for the decompression half - * of the JPEG library. These are the "standard" API routines that are - * used in the normal full-decompression case. They are not used by a - * transcoding-only application. Note that if an application links in - * jpeg_start_decompress, it will end up linking in the entire decompressor. - * We thus must separate this file from jdapimin.c to avoid linking the - * whole decompression library into a transcoder. - */ - -#define JPEG_INTERNALS -#include "jinclude.h" -#include "jpeglib.h" - - -/* Forward declarations */ -LOCAL(boolean) output_pass_setup JPP((j_decompress_ptr cinfo)); - - -/* - * Decompression initialization. - * jpeg_read_header must be completed before calling this. - * - * If a multipass operating mode was selected, this will do all but the - * last pass, and thus may take a great deal of time. - * - * Returns FALSE if suspended. The return value need be inspected only if - * a suspending data source is used. - */ - -GLOBAL(boolean) -jpeg_start_decompress (j_decompress_ptr cinfo) -{ - if (cinfo->global_state == DSTATE_READY) { - /* First call: initialize master control, select active modules */ - jinit_master_decompress(cinfo); - if (cinfo->buffered_image) { - /* No more work here; expecting jpeg_start_output next */ - cinfo->global_state = DSTATE_BUFIMAGE; - return TRUE; - } - cinfo->global_state = DSTATE_PRELOAD; - } - if (cinfo->global_state == DSTATE_PRELOAD) { - /* If file has multiple scans, absorb them all into the coef buffer */ - if (cinfo->inputctl->has_multiple_scans) { -#ifdef D_MULTISCAN_FILES_SUPPORTED - for (;;) { - int retcode; - /* Call progress monitor hook if present */ - if (cinfo->progress != NULL) - (*cinfo->progress->progress_monitor) ((j_common_ptr) cinfo); - /* Absorb some more input */ - retcode = (*cinfo->inputctl->consume_input) (cinfo); - if (retcode == JPEG_SUSPENDED) - return FALSE; - if (retcode == JPEG_REACHED_EOI) - break; - /* Advance progress counter if appropriate */ - if (cinfo->progress != NULL && - (retcode == JPEG_ROW_COMPLETED || retcode == JPEG_REACHED_SOS)) { - if (++cinfo->progress->pass_counter >= cinfo->progress->pass_limit) { - /* jdmaster underestimated number of scans; ratchet up one scan */ - cinfo->progress->pass_limit += (long) cinfo->total_iMCU_rows; - } - } - } -#else - ERREXIT(cinfo, JERR_NOT_COMPILED); -#endif /* D_MULTISCAN_FILES_SUPPORTED */ - } - cinfo->output_scan_number = cinfo->input_scan_number; - } else if (cinfo->global_state != DSTATE_PRESCAN) - ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state); - /* Perform any dummy output passes, and set up for the final pass */ - return output_pass_setup(cinfo); -} - - -/* - * Set up for an output pass, and perform any dummy pass(es) needed. - * Common subroutine for jpeg_start_decompress and jpeg_start_output. - * Entry: global_state = DSTATE_PRESCAN only if previously suspended. - * Exit: If done, returns TRUE and sets global_state for proper output mode. - * If suspended, returns FALSE and sets global_state = DSTATE_PRESCAN. - */ - -LOCAL(boolean) -output_pass_setup (j_decompress_ptr cinfo) -{ - if (cinfo->global_state != DSTATE_PRESCAN) { - /* First call: do pass setup */ - (*cinfo->master->prepare_for_output_pass) (cinfo); - cinfo->output_scanline = 0; - cinfo->global_state = DSTATE_PRESCAN; - } - /* Loop over any required dummy passes */ - while (cinfo->master->is_dummy_pass) { -#ifdef QUANT_2PASS_SUPPORTED - /* Crank through the dummy pass */ - while (cinfo->output_scanline < cinfo->output_height) { - JDIMENSION last_scanline; - /* Call progress monitor hook if present */ - if (cinfo->progress != NULL) { - cinfo->progress->pass_counter = (long) cinfo->output_scanline; - cinfo->progress->pass_limit = (long) cinfo->output_height; - (*cinfo->progress->progress_monitor) ((j_common_ptr) cinfo); - } - /* Process some data */ - last_scanline = cinfo->output_scanline; - (*cinfo->main->process_data) (cinfo, (JSAMPARRAY) NULL, - &cinfo->output_scanline, (JDIMENSION) 0); - if (cinfo->output_scanline == last_scanline) - return FALSE; /* No progress made, must suspend */ - } - /* Finish up dummy pass, and set up for another one */ - (*cinfo->master->finish_output_pass) (cinfo); - (*cinfo->master->prepare_for_output_pass) (cinfo); - cinfo->output_scanline = 0; -#else - ERREXIT(cinfo, JERR_NOT_COMPILED); -#endif /* QUANT_2PASS_SUPPORTED */ - } - /* Ready for application to drive output pass through - * jpeg_read_scanlines or jpeg_read_raw_data. - */ - cinfo->global_state = cinfo->raw_data_out ? DSTATE_RAW_OK : DSTATE_SCANNING; - return TRUE; -} - - -/* - * Read some scanlines of data from the JPEG decompressor. - * - * The return value will be the number of lines actually read. - * This may be less than the number requested in several cases, - * including bottom of image, data source suspension, and operating - * modes that emit multiple scanlines at a time. - * - * Note: we warn about excess calls to jpeg_read_scanlines() since - * this likely signals an application programmer error. However, - * an oversize buffer (max_lines > scanlines remaining) is not an error. - */ - -GLOBAL(JDIMENSION) -jpeg_read_scanlines (j_decompress_ptr cinfo, JSAMPARRAY scanlines, - JDIMENSION max_lines) -{ - JDIMENSION row_ctr; - - if (cinfo->global_state != DSTATE_SCANNING) - ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state); - if (cinfo->output_scanline >= cinfo->output_height) { - WARNMS(cinfo, JWRN_TOO_MUCH_DATA); - return 0; - } - - /* Call progress monitor hook if present */ - if (cinfo->progress != NULL) { - cinfo->progress->pass_counter = (long) cinfo->output_scanline; - cinfo->progress->pass_limit = (long) cinfo->output_height; - (*cinfo->progress->progress_monitor) ((j_common_ptr) cinfo); - } - - /* Process some data */ - row_ctr = 0; - (*cinfo->main->process_data) (cinfo, scanlines, &row_ctr, max_lines); - cinfo->output_scanline += row_ctr; - return row_ctr; -} - - -/* - * Alternate entry point to read raw data. - * Processes exactly one iMCU row per call, unless suspended. - */ - -GLOBAL(JDIMENSION) -jpeg_read_raw_data (j_decompress_ptr cinfo, JSAMPIMAGE data, - JDIMENSION max_lines) -{ - JDIMENSION lines_per_iMCU_row; - - if (cinfo->global_state != DSTATE_RAW_OK) - ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state); - if (cinfo->output_scanline >= cinfo->output_height) { - WARNMS(cinfo, JWRN_TOO_MUCH_DATA); - return 0; - } - - /* Call progress monitor hook if present */ - if (cinfo->progress != NULL) { - cinfo->progress->pass_counter = (long) cinfo->output_scanline; - cinfo->progress->pass_limit = (long) cinfo->output_height; - (*cinfo->progress->progress_monitor) ((j_common_ptr) cinfo); - } - - /* Verify that at least one iMCU row can be returned. */ - lines_per_iMCU_row = cinfo->max_v_samp_factor * cinfo->min_DCT_v_scaled_size; - if (max_lines < lines_per_iMCU_row) - ERREXIT(cinfo, JERR_BUFFER_SIZE); - - /* Decompress directly into user's buffer. */ - if (! (*cinfo->coef->decompress_data) (cinfo, data)) - return 0; /* suspension forced, can do nothing more */ - - /* OK, we processed one iMCU row. */ - cinfo->output_scanline += lines_per_iMCU_row; - return lines_per_iMCU_row; -} - - -/* Additional entry points for buffered-image mode. */ - -#ifdef D_MULTISCAN_FILES_SUPPORTED - -/* - * Initialize for an output pass in buffered-image mode. - */ - -GLOBAL(boolean) -jpeg_start_output (j_decompress_ptr cinfo, int scan_number) -{ - if (cinfo->global_state != DSTATE_BUFIMAGE && - cinfo->global_state != DSTATE_PRESCAN) - ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state); - /* Limit scan number to valid range */ - if (scan_number <= 0) - scan_number = 1; - if (cinfo->inputctl->eoi_reached && - scan_number > cinfo->input_scan_number) - scan_number = cinfo->input_scan_number; - cinfo->output_scan_number = scan_number; - /* Perform any dummy output passes, and set up for the real pass */ - return output_pass_setup(cinfo); -} - - -/* - * Finish up after an output pass in buffered-image mode. - * - * Returns FALSE if suspended. The return value need be inspected only if - * a suspending data source is used. - */ - -GLOBAL(boolean) -jpeg_finish_output (j_decompress_ptr cinfo) -{ - if ((cinfo->global_state == DSTATE_SCANNING || - cinfo->global_state == DSTATE_RAW_OK) && cinfo->buffered_image) { - /* Terminate this pass. */ - /* We do not require the whole pass to have been completed. */ - (*cinfo->master->finish_output_pass) (cinfo); - cinfo->global_state = DSTATE_BUFPOST; - } else if (cinfo->global_state != DSTATE_BUFPOST) { - /* BUFPOST = repeat call after a suspension, anything else is error */ - ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state); - } - /* Read markers looking for SOS or EOI */ - while (cinfo->input_scan_number <= cinfo->output_scan_number && - ! cinfo->inputctl->eoi_reached) { - if ((*cinfo->inputctl->consume_input) (cinfo) == JPEG_SUSPENDED) - return FALSE; /* Suspend, come back later */ - } - cinfo->global_state = DSTATE_BUFIMAGE; - return TRUE; -} - -#endif /* D_MULTISCAN_FILES_SUPPORTED */ diff --git a/jpg/jdarith.c b/jpg/jdarith.c deleted file mode 100644 index 092f8af..0000000 --- a/jpg/jdarith.c +++ /dev/null @@ -1,776 +0,0 @@ -/* - * jdarith.c - * - * Developed 1997-2011 by Guido Vollbeding. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file contains portable arithmetic entropy decoding routines for JPEG - * (implementing the ISO/IEC IS 10918-1 and CCITT Recommendation ITU-T T.81). - * - * Both sequential and progressive modes are supported in this single module. - * - * Suspension is not currently supported in this module. - */ - -#define JPEG_INTERNALS -#include "jinclude.h" -#include "jpeglib.h" - - -/* Expanded entropy decoder object for arithmetic decoding. */ - -typedef struct { - struct jpeg_entropy_decoder pub; /* public fields */ - - INT32 c; /* C register, base of coding interval + input bit buffer */ - INT32 a; /* A register, normalized size of coding interval */ - int ct; /* bit shift counter, # of bits left in bit buffer part of C */ - /* init: ct = -16 */ - /* run: ct = 0..7 */ - /* error: ct = -1 */ - int last_dc_val[MAX_COMPS_IN_SCAN]; /* last DC coef for each component */ - int dc_context[MAX_COMPS_IN_SCAN]; /* context index for DC conditioning */ - - unsigned int restarts_to_go; /* MCUs left in this restart interval */ - - /* Pointers to statistics areas (these workspaces have image lifespan) */ - unsigned char * dc_stats[NUM_ARITH_TBLS]; - unsigned char * ac_stats[NUM_ARITH_TBLS]; - - /* Statistics bin for coding with fixed probability 0.5 */ - unsigned char fixed_bin[4]; -} arith_entropy_decoder; - -typedef arith_entropy_decoder * arith_entropy_ptr; - -/* The following two definitions specify the allocation chunk size - * for the statistics area. - * According to sections F.1.4.4.1.3 and F.1.4.4.2, we need at least - * 49 statistics bins for DC, and 245 statistics bins for AC coding. - * - * We use a compact representation with 1 byte per statistics bin, - * thus the numbers directly represent byte sizes. - * This 1 byte per statistics bin contains the meaning of the MPS - * (more probable symbol) in the highest bit (mask 0x80), and the - * index into the probability estimation state machine table - * in the lower bits (mask 0x7F). - */ - -#define DC_STAT_BINS 64 -#define AC_STAT_BINS 256 - - -LOCAL(int) -get_byte (j_decompress_ptr cinfo) -/* Read next input byte; we do not support suspension in this module. */ -{ - struct jpeg_source_mgr * src = cinfo->src; - - if (src->bytes_in_buffer == 0) - if (! (*src->fill_input_buffer) (cinfo)) - ERREXIT(cinfo, JERR_CANT_SUSPEND); - src->bytes_in_buffer--; - return GETJOCTET(*src->next_input_byte++); -} - - -/* - * The core arithmetic decoding routine (common in JPEG and JBIG). - * This needs to go as fast as possible. - * Machine-dependent optimization facilities - * are not utilized in this portable implementation. - * However, this code should be fairly efficient and - * may be a good base for further optimizations anyway. - * - * Return value is 0 or 1 (binary decision). - * - * Note: I've changed the handling of the code base & bit - * buffer register C compared to other implementations - * based on the standards layout & procedures. - * While it also contains both the actual base of the - * coding interval (16 bits) and the next-bits buffer, - * the cut-point between these two parts is floating - * (instead of fixed) with the bit shift counter CT. - * Thus, we also need only one (variable instead of - * fixed size) shift for the LPS/MPS decision, and - * we can get away with any renormalization update - * of C (except for new data insertion, of course). - * - * I've also introduced a new scheme for accessing - * the probability estimation state machine table, - * derived from Markus Kuhn's JBIG implementation. - */ - -LOCAL(int) -arith_decode (j_decompress_ptr cinfo, unsigned char *st) -{ - register arith_entropy_ptr e = (arith_entropy_ptr) cinfo->entropy; - register unsigned char nl, nm; - register INT32 qe, temp; - register int sv, data; - - /* Renormalization & data input per section D.2.6 */ - while (e->a < 0x8000L) { - if (--e->ct < 0) { - /* Need to fetch next data byte */ - if (cinfo->unread_marker) - data = 0; /* stuff zero data */ - else { - data = get_byte(cinfo); /* read next input byte */ - if (data == 0xFF) { /* zero stuff or marker code */ - do data = get_byte(cinfo); - while (data == 0xFF); /* swallow extra 0xFF bytes */ - if (data == 0) - data = 0xFF; /* discard stuffed zero byte */ - else { - /* Note: Different from the Huffman decoder, hitting - * a marker while processing the compressed data - * segment is legal in arithmetic coding. - * The convention is to supply zero data - * then until decoding is complete. - */ - cinfo->unread_marker = data; - data = 0; - } - } - } - e->c = (e->c << 8) | data; /* insert data into C register */ - if ((e->ct += 8) < 0) /* update bit shift counter */ - /* Need more initial bytes */ - if (++e->ct == 0) - /* Got 2 initial bytes -> re-init A and exit loop */ - e->a = 0x8000L; /* => e->a = 0x10000L after loop exit */ - } - e->a <<= 1; - } - - /* Fetch values from our compact representation of Table D.3(D.2): - * Qe values and probability estimation state machine - */ - sv = *st; - qe = jpeg_aritab[sv & 0x7F]; /* => Qe_Value */ - nl = qe & 0xFF; qe >>= 8; /* Next_Index_LPS + Switch_MPS */ - nm = qe & 0xFF; qe >>= 8; /* Next_Index_MPS */ - - /* Decode & estimation procedures per sections D.2.4 & D.2.5 */ - temp = e->a - qe; - e->a = temp; - temp <<= e->ct; - if (e->c >= temp) { - e->c -= temp; - /* Conditional LPS (less probable symbol) exchange */ - if (e->a < qe) { - e->a = qe; - *st = (sv & 0x80) ^ nm; /* Estimate_after_MPS */ - } else { - e->a = qe; - *st = (sv & 0x80) ^ nl; /* Estimate_after_LPS */ - sv ^= 0x80; /* Exchange LPS/MPS */ - } - } else if (e->a < 0x8000L) { - /* Conditional MPS (more probable symbol) exchange */ - if (e->a < qe) { - *st = (sv & 0x80) ^ nl; /* Estimate_after_LPS */ - sv ^= 0x80; /* Exchange LPS/MPS */ - } else { - *st = (sv & 0x80) ^ nm; /* Estimate_after_MPS */ - } - } - - return sv >> 7; -} - - -/* - * Check for a restart marker & resynchronize decoder. - */ - -LOCAL(void) -process_restart (j_decompress_ptr cinfo) -{ - arith_entropy_ptr entropy = (arith_entropy_ptr) cinfo->entropy; - int ci; - jpeg_component_info * compptr; - - /* Advance past the RSTn marker */ - if (! (*cinfo->marker->read_restart_marker) (cinfo)) - ERREXIT(cinfo, JERR_CANT_SUSPEND); - - /* Re-initialize statistics areas */ - for (ci = 0; ci < cinfo->comps_in_scan; ci++) { - compptr = cinfo->cur_comp_info[ci]; - if (! cinfo->progressive_mode || (cinfo->Ss == 0 && cinfo->Ah == 0)) { - MEMZERO(entropy->dc_stats[compptr->dc_tbl_no], DC_STAT_BINS); - /* Reset DC predictions to 0 */ - entropy->last_dc_val[ci] = 0; - entropy->dc_context[ci] = 0; - } - if ((! cinfo->progressive_mode && cinfo->lim_Se) || - (cinfo->progressive_mode && cinfo->Ss)) { - MEMZERO(entropy->ac_stats[compptr->ac_tbl_no], AC_STAT_BINS); - } - } - - /* Reset arithmetic decoding variables */ - entropy->c = 0; - entropy->a = 0; - entropy->ct = -16; /* force reading 2 initial bytes to fill C */ - - /* Reset restart counter */ - entropy->restarts_to_go = cinfo->restart_interval; -} - - -/* - * Arithmetic MCU decoding. - * Each of these routines decodes and returns one MCU's worth of - * arithmetic-compressed coefficients. - * The coefficients are reordered from zigzag order into natural array order, - * but are not dequantized. - * - * The i'th block of the MCU is stored into the block pointed to by - * MCU_data[i]. WE ASSUME THIS AREA IS INITIALLY ZEROED BY THE CALLER. - */ - -/* - * MCU decoding for DC initial scan (either spectral selection, - * or first pass of successive approximation). - */ - -METHODDEF(boolean) -decode_mcu_DC_first (j_decompress_ptr cinfo, JBLOCKROW *MCU_data) -{ - arith_entropy_ptr entropy = (arith_entropy_ptr) cinfo->entropy; - JBLOCKROW block; - unsigned char *st; - int blkn, ci, tbl, sign; - int v, m; - - /* Process restart marker if needed */ - if (cinfo->restart_interval) { - if (entropy->restarts_to_go == 0) - process_restart(cinfo); - entropy->restarts_to_go--; - } - - if (entropy->ct == -1) return TRUE; /* if error do nothing */ - - /* Outer loop handles each block in the MCU */ - - for (blkn = 0; blkn < cinfo->blocks_in_MCU; blkn++) { - block = MCU_data[blkn]; - ci = cinfo->MCU_membership[blkn]; - tbl = cinfo->cur_comp_info[ci]->dc_tbl_no; - - /* Sections F.2.4.1 & F.1.4.4.1: Decoding of DC coefficients */ - - /* Table F.4: Point to statistics bin S0 for DC coefficient coding */ - st = entropy->dc_stats[tbl] + entropy->dc_context[ci]; - - /* Figure F.19: Decode_DC_DIFF */ - if (arith_decode(cinfo, st) == 0) - entropy->dc_context[ci] = 0; - else { - /* Figure F.21: Decoding nonzero value v */ - /* Figure F.22: Decoding the sign of v */ - sign = arith_decode(cinfo, st + 1); - st += 2; st += sign; - /* Figure F.23: Decoding the magnitude category of v */ - if ((m = arith_decode(cinfo, st)) != 0) { - st = entropy->dc_stats[tbl] + 20; /* Table F.4: X1 = 20 */ - while (arith_decode(cinfo, st)) { - if ((m <<= 1) == 0x8000) { - WARNMS(cinfo, JWRN_ARITH_BAD_CODE); - entropy->ct = -1; /* magnitude overflow */ - return TRUE; - } - st += 1; - } - } - /* Section F.1.4.4.1.2: Establish dc_context conditioning category */ - if (m < (int) ((1L << cinfo->arith_dc_L[tbl]) >> 1)) - entropy->dc_context[ci] = 0; /* zero diff category */ - else if (m > (int) ((1L << cinfo->arith_dc_U[tbl]) >> 1)) - entropy->dc_context[ci] = 12 + (sign * 4); /* large diff category */ - else - entropy->dc_context[ci] = 4 + (sign * 4); /* small diff category */ - v = m; - /* Figure F.24: Decoding the magnitude bit pattern of v */ - st += 14; - while (m >>= 1) - if (arith_decode(cinfo, st)) v |= m; - v += 1; if (sign) v = -v; - entropy->last_dc_val[ci] += v; - } - - /* Scale and output the DC coefficient (assumes jpeg_natural_order[0]=0) */ - (*block)[0] = (JCOEF) (entropy->last_dc_val[ci] << cinfo->Al); - } - - return TRUE; -} - - -/* - * MCU decoding for AC initial scan (either spectral selection, - * or first pass of successive approximation). - */ - -METHODDEF(boolean) -decode_mcu_AC_first (j_decompress_ptr cinfo, JBLOCKROW *MCU_data) -{ - arith_entropy_ptr entropy = (arith_entropy_ptr) cinfo->entropy; - JBLOCKROW block; - unsigned char *st; - int tbl, sign, k; - int v, m; - const int * natural_order; - - /* Process restart marker if needed */ - if (cinfo->restart_interval) { - if (entropy->restarts_to_go == 0) - process_restart(cinfo); - entropy->restarts_to_go--; - } - - if (entropy->ct == -1) return TRUE; /* if error do nothing */ - - natural_order = cinfo->natural_order; - - /* There is always only one block per MCU */ - block = MCU_data[0]; - tbl = cinfo->cur_comp_info[0]->ac_tbl_no; - - /* Sections F.2.4.2 & F.1.4.4.2: Decoding of AC coefficients */ - - /* Figure F.20: Decode_AC_coefficients */ - for (k = cinfo->Ss; k <= cinfo->Se; k++) { - st = entropy->ac_stats[tbl] + 3 * (k - 1); - if (arith_decode(cinfo, st)) break; /* EOB flag */ - while (arith_decode(cinfo, st + 1) == 0) { - st += 3; k++; - if (k > cinfo->Se) { - WARNMS(cinfo, JWRN_ARITH_BAD_CODE); - entropy->ct = -1; /* spectral overflow */ - return TRUE; - } - } - /* Figure F.21: Decoding nonzero value v */ - /* Figure F.22: Decoding the sign of v */ - sign = arith_decode(cinfo, entropy->fixed_bin); - st += 2; - /* Figure F.23: Decoding the magnitude category of v */ - if ((m = arith_decode(cinfo, st)) != 0) { - if (arith_decode(cinfo, st)) { - m <<= 1; - st = entropy->ac_stats[tbl] + - (k <= cinfo->arith_ac_K[tbl] ? 189 : 217); - while (arith_decode(cinfo, st)) { - if ((m <<= 1) == 0x8000) { - WARNMS(cinfo, JWRN_ARITH_BAD_CODE); - entropy->ct = -1; /* magnitude overflow */ - return TRUE; - } - st += 1; - } - } - } - v = m; - /* Figure F.24: Decoding the magnitude bit pattern of v */ - st += 14; - while (m >>= 1) - if (arith_decode(cinfo, st)) v |= m; - v += 1; if (sign) v = -v; - /* Scale and output coefficient in natural (dezigzagged) order */ - (*block)[natural_order[k]] = (JCOEF) (v << cinfo->Al); - } - - return TRUE; -} - - -/* - * MCU decoding for DC successive approximation refinement scan. - */ - -METHODDEF(boolean) -decode_mcu_DC_refine (j_decompress_ptr cinfo, JBLOCKROW *MCU_data) -{ - arith_entropy_ptr entropy = (arith_entropy_ptr) cinfo->entropy; - unsigned char *st; - int p1, blkn; - - /* Process restart marker if needed */ - if (cinfo->restart_interval) { - if (entropy->restarts_to_go == 0) - process_restart(cinfo); - entropy->restarts_to_go--; - } - - st = entropy->fixed_bin; /* use fixed probability estimation */ - p1 = 1 << cinfo->Al; /* 1 in the bit position being coded */ - - /* Outer loop handles each block in the MCU */ - - for (blkn = 0; blkn < cinfo->blocks_in_MCU; blkn++) { - /* Encoded data is simply the next bit of the two's-complement DC value */ - if (arith_decode(cinfo, st)) - MCU_data[blkn][0][0] |= p1; - } - - return TRUE; -} - - -/* - * MCU decoding for AC successive approximation refinement scan. - */ - -METHODDEF(boolean) -decode_mcu_AC_refine (j_decompress_ptr cinfo, JBLOCKROW *MCU_data) -{ - arith_entropy_ptr entropy = (arith_entropy_ptr) cinfo->entropy; - JBLOCKROW block; - JCOEFPTR thiscoef; - unsigned char *st; - int tbl, k, kex; - int p1, m1; - const int * natural_order; - - /* Process restart marker if needed */ - if (cinfo->restart_interval) { - if (entropy->restarts_to_go == 0) - process_restart(cinfo); - entropy->restarts_to_go--; - } - - if (entropy->ct == -1) return TRUE; /* if error do nothing */ - - natural_order = cinfo->natural_order; - - /* There is always only one block per MCU */ - block = MCU_data[0]; - tbl = cinfo->cur_comp_info[0]->ac_tbl_no; - - p1 = 1 << cinfo->Al; /* 1 in the bit position being coded */ - m1 = (-1) << cinfo->Al; /* -1 in the bit position being coded */ - - /* Establish EOBx (previous stage end-of-block) index */ - for (kex = cinfo->Se; kex > 0; kex--) - if ((*block)[natural_order[kex]]) break; - - for (k = cinfo->Ss; k <= cinfo->Se; k++) { - st = entropy->ac_stats[tbl] + 3 * (k - 1); - if (k > kex) - if (arith_decode(cinfo, st)) break; /* EOB flag */ - for (;;) { - thiscoef = *block + natural_order[k]; - if (*thiscoef) { /* previously nonzero coef */ - if (arith_decode(cinfo, st + 2)) { - if (*thiscoef < 0) - *thiscoef += m1; - else - *thiscoef += p1; - } - break; - } - if (arith_decode(cinfo, st + 1)) { /* newly nonzero coef */ - if (arith_decode(cinfo, entropy->fixed_bin)) - *thiscoef = m1; - else - *thiscoef = p1; - break; - } - st += 3; k++; - if (k > cinfo->Se) { - WARNMS(cinfo, JWRN_ARITH_BAD_CODE); - entropy->ct = -1; /* spectral overflow */ - return TRUE; - } - } - } - - return TRUE; -} - - -/* - * Decode one MCU's worth of arithmetic-compressed coefficients. - */ - -METHODDEF(boolean) -decode_mcu (j_decompress_ptr cinfo, JBLOCKROW *MCU_data) -{ - arith_entropy_ptr entropy = (arith_entropy_ptr) cinfo->entropy; - jpeg_component_info * compptr; - JBLOCKROW block; - unsigned char *st; - int blkn, ci, tbl, sign, k; - int v, m; - const int * natural_order; - - /* Process restart marker if needed */ - if (cinfo->restart_interval) { - if (entropy->restarts_to_go == 0) - process_restart(cinfo); - entropy->restarts_to_go--; - } - - if (entropy->ct == -1) return TRUE; /* if error do nothing */ - - natural_order = cinfo->natural_order; - - /* Outer loop handles each block in the MCU */ - - for (blkn = 0; blkn < cinfo->blocks_in_MCU; blkn++) { - block = MCU_data[blkn]; - ci = cinfo->MCU_membership[blkn]; - compptr = cinfo->cur_comp_info[ci]; - - /* Sections F.2.4.1 & F.1.4.4.1: Decoding of DC coefficients */ - - tbl = compptr->dc_tbl_no; - - /* Table F.4: Point to statistics bin S0 for DC coefficient coding */ - st = entropy->dc_stats[tbl] + entropy->dc_context[ci]; - - /* Figure F.19: Decode_DC_DIFF */ - if (arith_decode(cinfo, st) == 0) - entropy->dc_context[ci] = 0; - else { - /* Figure F.21: Decoding nonzero value v */ - /* Figure F.22: Decoding the sign of v */ - sign = arith_decode(cinfo, st + 1); - st += 2; st += sign; - /* Figure F.23: Decoding the magnitude category of v */ - if ((m = arith_decode(cinfo, st)) != 0) { - st = entropy->dc_stats[tbl] + 20; /* Table F.4: X1 = 20 */ - while (arith_decode(cinfo, st)) { - if ((m <<= 1) == 0x8000) { - WARNMS(cinfo, JWRN_ARITH_BAD_CODE); - entropy->ct = -1; /* magnitude overflow */ - return TRUE; - } - st += 1; - } - } - /* Section F.1.4.4.1.2: Establish dc_context conditioning category */ - if (m < (int) ((1L << cinfo->arith_dc_L[tbl]) >> 1)) - entropy->dc_context[ci] = 0; /* zero diff category */ - else if (m > (int) ((1L << cinfo->arith_dc_U[tbl]) >> 1)) - entropy->dc_context[ci] = 12 + (sign * 4); /* large diff category */ - else - entropy->dc_context[ci] = 4 + (sign * 4); /* small diff category */ - v = m; - /* Figure F.24: Decoding the magnitude bit pattern of v */ - st += 14; - while (m >>= 1) - if (arith_decode(cinfo, st)) v |= m; - v += 1; if (sign) v = -v; - entropy->last_dc_val[ci] += v; - } - - (*block)[0] = (JCOEF) entropy->last_dc_val[ci]; - - /* Sections F.2.4.2 & F.1.4.4.2: Decoding of AC coefficients */ - - if (cinfo->lim_Se == 0) continue; - tbl = compptr->ac_tbl_no; - k = 0; - - /* Figure F.20: Decode_AC_coefficients */ - do { - st = entropy->ac_stats[tbl] + 3 * k; - if (arith_decode(cinfo, st)) break; /* EOB flag */ - for (;;) { - k++; - if (arith_decode(cinfo, st + 1)) break; - st += 3; - if (k >= cinfo->lim_Se) { - WARNMS(cinfo, JWRN_ARITH_BAD_CODE); - entropy->ct = -1; /* spectral overflow */ - return TRUE; - } - } - /* Figure F.21: Decoding nonzero value v */ - /* Figure F.22: Decoding the sign of v */ - sign = arith_decode(cinfo, entropy->fixed_bin); - st += 2; - /* Figure F.23: Decoding the magnitude category of v */ - if ((m = arith_decode(cinfo, st)) != 0) { - if (arith_decode(cinfo, st)) { - m <<= 1; - st = entropy->ac_stats[tbl] + - (k <= cinfo->arith_ac_K[tbl] ? 189 : 217); - while (arith_decode(cinfo, st)) { - if ((m <<= 1) == 0x8000) { - WARNMS(cinfo, JWRN_ARITH_BAD_CODE); - entropy->ct = -1; /* magnitude overflow */ - return TRUE; - } - st += 1; - } - } - } - v = m; - /* Figure F.24: Decoding the magnitude bit pattern of v */ - st += 14; - while (m >>= 1) - if (arith_decode(cinfo, st)) v |= m; - v += 1; if (sign) v = -v; - (*block)[natural_order[k]] = (JCOEF) v; - } while (k < cinfo->lim_Se); - } - - return TRUE; -} - - -/* - * Initialize for an arithmetic-compressed scan. - */ - -METHODDEF(void) -start_pass (j_decompress_ptr cinfo) -{ - arith_entropy_ptr entropy = (arith_entropy_ptr) cinfo->entropy; - int ci, tbl; - jpeg_component_info * compptr; - - if (cinfo->progressive_mode) { - /* Validate progressive scan parameters */ - if (cinfo->Ss == 0) { - if (cinfo->Se != 0) - goto bad; - } else { - /* need not check Ss/Se < 0 since they came from unsigned bytes */ - if (cinfo->Se < cinfo->Ss || cinfo->Se > cinfo->lim_Se) - goto bad; - /* AC scans may have only one component */ - if (cinfo->comps_in_scan != 1) - goto bad; - } - if (cinfo->Ah != 0) { - /* Successive approximation refinement scan: must have Al = Ah-1. */ - if (cinfo->Ah-1 != cinfo->Al) - goto bad; - } - if (cinfo->Al > 13) { /* need not check for < 0 */ - bad: - ERREXIT4(cinfo, JERR_BAD_PROGRESSION, - cinfo->Ss, cinfo->Se, cinfo->Ah, cinfo->Al); - } - /* Update progression status, and verify that scan order is legal. - * Note that inter-scan inconsistencies are treated as warnings - * not fatal errors ... not clear if this is right way to behave. - */ - for (ci = 0; ci < cinfo->comps_in_scan; ci++) { - int coefi, cindex = cinfo->cur_comp_info[ci]->component_index; - int *coef_bit_ptr = & cinfo->coef_bits[cindex][0]; - if (cinfo->Ss && coef_bit_ptr[0] < 0) /* AC without prior DC scan */ - WARNMS2(cinfo, JWRN_BOGUS_PROGRESSION, cindex, 0); - for (coefi = cinfo->Ss; coefi <= cinfo->Se; coefi++) { - int expected = (coef_bit_ptr[coefi] < 0) ? 0 : coef_bit_ptr[coefi]; - if (cinfo->Ah != expected) - WARNMS2(cinfo, JWRN_BOGUS_PROGRESSION, cindex, coefi); - coef_bit_ptr[coefi] = cinfo->Al; - } - } - /* Select MCU decoding routine */ - if (cinfo->Ah == 0) { - if (cinfo->Ss == 0) - entropy->pub.decode_mcu = decode_mcu_DC_first; - else - entropy->pub.decode_mcu = decode_mcu_AC_first; - } else { - if (cinfo->Ss == 0) - entropy->pub.decode_mcu = decode_mcu_DC_refine; - else - entropy->pub.decode_mcu = decode_mcu_AC_refine; - } - } else { - /* Check that the scan parameters Ss, Se, Ah/Al are OK for sequential JPEG. - * This ought to be an error condition, but we make it a warning. - */ - if (cinfo->Ss != 0 || cinfo->Ah != 0 || cinfo->Al != 0 || - (cinfo->Se < DCTSIZE2 && cinfo->Se != cinfo->lim_Se)) - WARNMS(cinfo, JWRN_NOT_SEQUENTIAL); - /* Select MCU decoding routine */ - entropy->pub.decode_mcu = decode_mcu; - } - - /* Allocate & initialize requested statistics areas */ - for (ci = 0; ci < cinfo->comps_in_scan; ci++) { - compptr = cinfo->cur_comp_info[ci]; - if (! cinfo->progressive_mode || (cinfo->Ss == 0 && cinfo->Ah == 0)) { - tbl = compptr->dc_tbl_no; - if (tbl < 0 || tbl >= NUM_ARITH_TBLS) - ERREXIT1(cinfo, JERR_NO_ARITH_TABLE, tbl); - if (entropy->dc_stats[tbl] == NULL) - entropy->dc_stats[tbl] = (unsigned char *) (*cinfo->mem->alloc_small) - ((j_common_ptr) cinfo, JPOOL_IMAGE, DC_STAT_BINS); - MEMZERO(entropy->dc_stats[tbl], DC_STAT_BINS); - /* Initialize DC predictions to 0 */ - entropy->last_dc_val[ci] = 0; - entropy->dc_context[ci] = 0; - } - if ((! cinfo->progressive_mode && cinfo->lim_Se) || - (cinfo->progressive_mode && cinfo->Ss)) { - tbl = compptr->ac_tbl_no; - if (tbl < 0 || tbl >= NUM_ARITH_TBLS) - ERREXIT1(cinfo, JERR_NO_ARITH_TABLE, tbl); - if (entropy->ac_stats[tbl] == NULL) - entropy->ac_stats[tbl] = (unsigned char *) (*cinfo->mem->alloc_small) - ((j_common_ptr) cinfo, JPOOL_IMAGE, AC_STAT_BINS); - MEMZERO(entropy->ac_stats[tbl], AC_STAT_BINS); - } - } - - /* Initialize arithmetic decoding variables */ - entropy->c = 0; - entropy->a = 0; - entropy->ct = -16; /* force reading 2 initial bytes to fill C */ - - /* Initialize restart counter */ - entropy->restarts_to_go = cinfo->restart_interval; -} - - -/* - * Module initialization routine for arithmetic entropy decoding. - */ - -GLOBAL(void) -jinit_arith_decoder (j_decompress_ptr cinfo) -{ - arith_entropy_ptr entropy; - int i; - - entropy = (arith_entropy_ptr) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - SIZEOF(arith_entropy_decoder)); - cinfo->entropy = (struct jpeg_entropy_decoder *) entropy; - entropy->pub.start_pass = start_pass; - - /* Mark tables unallocated */ - for (i = 0; i < NUM_ARITH_TBLS; i++) { - entropy->dc_stats[i] = NULL; - entropy->ac_stats[i] = NULL; - } - - /* Initialize index for fixed probability estimation */ - entropy->fixed_bin[0] = 113; - - if (cinfo->progressive_mode) { - /* Create progression status table */ - int *coef_bit_ptr, ci; - cinfo->coef_bits = (int (*)[DCTSIZE2]) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - cinfo->num_components*DCTSIZE2*SIZEOF(int)); - coef_bit_ptr = & cinfo->coef_bits[0][0]; - for (ci = 0; ci < cinfo->num_components; ci++) - for (i = 0; i < DCTSIZE2; i++) - *coef_bit_ptr++ = -1; - } -} diff --git a/jpg/jdatadst.c b/jpg/jdatadst.c deleted file mode 100644 index 6981fb7..0000000 --- a/jpg/jdatadst.c +++ /dev/null @@ -1,267 +0,0 @@ -/* - * jdatadst.c - * - * Copyright (C) 1994-1996, Thomas G. Lane. - * Modified 2009-2012 by Guido Vollbeding. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file contains compression data destination routines for the case of - * emitting JPEG data to memory or to a file (or any stdio stream). - * While these routines are sufficient for most applications, - * some will want to use a different destination manager. - * IMPORTANT: we assume that fwrite() will correctly transcribe an array of - * JOCTETs into 8-bit-wide elements on external storage. If char is wider - * than 8 bits on your machine, you may need to do some tweaking. - */ - -/* this is not a core library module, so it doesn't define JPEG_INTERNALS */ -#include "jinclude.h" -#include "jpeglib.h" -#include "jerror.h" - -#ifndef HAVE_STDLIB_H /* should declare malloc(),free() */ -extern void * malloc JPP((size_t size)); -extern void free JPP((void *ptr)); -#endif - - -/* Expanded data destination object for stdio output */ - -typedef struct { - struct jpeg_destination_mgr pub; /* public fields */ - - FILE * outfile; /* target stream */ - JOCTET * buffer; /* start of buffer */ -} my_destination_mgr; - -typedef my_destination_mgr * my_dest_ptr; - -#define OUTPUT_BUF_SIZE 4096 /* choose an efficiently fwrite'able size */ - - -/* Expanded data destination object for memory output */ - -typedef struct { - struct jpeg_destination_mgr pub; /* public fields */ - - unsigned char ** outbuffer; /* target buffer */ - unsigned long * outsize; - unsigned char * newbuffer; /* newly allocated buffer */ - JOCTET * buffer; /* start of buffer */ - size_t bufsize; -} my_mem_destination_mgr; - -typedef my_mem_destination_mgr * my_mem_dest_ptr; - - -/* - * Initialize destination --- called by jpeg_start_compress - * before any data is actually written. - */ - -METHODDEF(void) -init_destination (j_compress_ptr cinfo) -{ - my_dest_ptr dest = (my_dest_ptr) cinfo->dest; - - /* Allocate the output buffer --- it will be released when done with image */ - dest->buffer = (JOCTET *) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - OUTPUT_BUF_SIZE * SIZEOF(JOCTET)); - - dest->pub.next_output_byte = dest->buffer; - dest->pub.free_in_buffer = OUTPUT_BUF_SIZE; -} - -METHODDEF(void) -init_mem_destination (j_compress_ptr cinfo) -{ - /* no work necessary here */ -} - - -/* - * Empty the output buffer --- called whenever buffer fills up. - * - * In typical applications, this should write the entire output buffer - * (ignoring the current state of next_output_byte & free_in_buffer), - * reset the pointer & count to the start of the buffer, and return TRUE - * indicating that the buffer has been dumped. - * - * In applications that need to be able to suspend compression due to output - * overrun, a FALSE return indicates that the buffer cannot be emptied now. - * In this situation, the compressor will return to its caller (possibly with - * an indication that it has not accepted all the supplied scanlines). The - * application should resume compression after it has made more room in the - * output buffer. Note that there are substantial restrictions on the use of - * suspension --- see the documentation. - * - * When suspending, the compressor will back up to a convenient restart point - * (typically the start of the current MCU). next_output_byte & free_in_buffer - * indicate where the restart point will be if the current call returns FALSE. - * Data beyond this point will be regenerated after resumption, so do not - * write it out when emptying the buffer externally. - */ - -METHODDEF(boolean) -empty_output_buffer (j_compress_ptr cinfo) -{ - my_dest_ptr dest = (my_dest_ptr) cinfo->dest; - - if (JFWRITE(dest->outfile, dest->buffer, OUTPUT_BUF_SIZE) != - (size_t) OUTPUT_BUF_SIZE) - ERREXIT(cinfo, JERR_FILE_WRITE); - - dest->pub.next_output_byte = dest->buffer; - dest->pub.free_in_buffer = OUTPUT_BUF_SIZE; - - return TRUE; -} - -METHODDEF(boolean) -empty_mem_output_buffer (j_compress_ptr cinfo) -{ - size_t nextsize; - JOCTET * nextbuffer; - my_mem_dest_ptr dest = (my_mem_dest_ptr) cinfo->dest; - - /* Try to allocate new buffer with double size */ - nextsize = dest->bufsize * 2; - nextbuffer = (JOCTET *) malloc(nextsize); - - if (nextbuffer == NULL) - ERREXIT1(cinfo, JERR_OUT_OF_MEMORY, 10); - - MEMCOPY(nextbuffer, dest->buffer, dest->bufsize); - - if (dest->newbuffer != NULL) - free(dest->newbuffer); - - dest->newbuffer = nextbuffer; - - dest->pub.next_output_byte = nextbuffer + dest->bufsize; - dest->pub.free_in_buffer = dest->bufsize; - - dest->buffer = nextbuffer; - dest->bufsize = nextsize; - - return TRUE; -} - - -/* - * Terminate destination --- called by jpeg_finish_compress - * after all data has been written. Usually needs to flush buffer. - * - * NB: *not* called by jpeg_abort or jpeg_destroy; surrounding - * application must deal with any cleanup that should happen even - * for error exit. - */ - -METHODDEF(void) -term_destination (j_compress_ptr cinfo) -{ - my_dest_ptr dest = (my_dest_ptr) cinfo->dest; - size_t datacount = OUTPUT_BUF_SIZE - dest->pub.free_in_buffer; - - /* Write any data remaining in the buffer */ - if (datacount > 0) { - if (JFWRITE(dest->outfile, dest->buffer, datacount) != datacount) - ERREXIT(cinfo, JERR_FILE_WRITE); - } - fflush(dest->outfile); - /* Make sure we wrote the output file OK */ - if (ferror(dest->outfile)) - ERREXIT(cinfo, JERR_FILE_WRITE); -} - -METHODDEF(void) -term_mem_destination (j_compress_ptr cinfo) -{ - my_mem_dest_ptr dest = (my_mem_dest_ptr) cinfo->dest; - - *dest->outbuffer = dest->buffer; - *dest->outsize = dest->bufsize - dest->pub.free_in_buffer; -} - - -/* - * Prepare for output to a stdio stream. - * The caller must have already opened the stream, and is responsible - * for closing it after finishing compression. - */ - -GLOBAL(void) -jpeg_stdio_dest (j_compress_ptr cinfo, FILE * outfile) -{ - my_dest_ptr dest; - - /* The destination object is made permanent so that multiple JPEG images - * can be written to the same file without re-executing jpeg_stdio_dest. - * This makes it dangerous to use this manager and a different destination - * manager serially with the same JPEG object, because their private object - * sizes may be different. Caveat programmer. - */ - if (cinfo->dest == NULL) { /* first time for this JPEG object? */ - cinfo->dest = (struct jpeg_destination_mgr *) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_PERMANENT, - SIZEOF(my_destination_mgr)); - } - - dest = (my_dest_ptr) cinfo->dest; - dest->pub.init_destination = init_destination; - dest->pub.empty_output_buffer = empty_output_buffer; - dest->pub.term_destination = term_destination; - dest->outfile = outfile; -} - - -/* - * Prepare for output to a memory buffer. - * The caller may supply an own initial buffer with appropriate size. - * Otherwise, or when the actual data output exceeds the given size, - * the library adapts the buffer size as necessary. - * The standard library functions malloc/free are used for allocating - * larger memory, so the buffer is available to the application after - * finishing compression, and then the application is responsible for - * freeing the requested memory. - */ - -GLOBAL(void) -jpeg_mem_dest (j_compress_ptr cinfo, - unsigned char ** outbuffer, unsigned long * outsize) -{ - my_mem_dest_ptr dest; - - if (outbuffer == NULL || outsize == NULL) /* sanity check */ - ERREXIT(cinfo, JERR_BUFFER_SIZE); - - /* The destination object is made permanent so that multiple JPEG images - * can be written to the same buffer without re-executing jpeg_mem_dest. - */ - if (cinfo->dest == NULL) { /* first time for this JPEG object? */ - cinfo->dest = (struct jpeg_destination_mgr *) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_PERMANENT, - SIZEOF(my_mem_destination_mgr)); - } - - dest = (my_mem_dest_ptr) cinfo->dest; - dest->pub.init_destination = init_mem_destination; - dest->pub.empty_output_buffer = empty_mem_output_buffer; - dest->pub.term_destination = term_mem_destination; - dest->outbuffer = outbuffer; - dest->outsize = outsize; - dest->newbuffer = NULL; - - if (*outbuffer == NULL || *outsize == 0) { - /* Allocate initial buffer */ - dest->newbuffer = *outbuffer = (unsigned char *) malloc(OUTPUT_BUF_SIZE); - if (dest->newbuffer == NULL) - ERREXIT1(cinfo, JERR_OUT_OF_MEMORY, 10); - *outsize = OUTPUT_BUF_SIZE; - } - - dest->pub.next_output_byte = dest->buffer = *outbuffer; - dest->pub.free_in_buffer = dest->bufsize = *outsize; -} diff --git a/jpg/jdatasrc.c b/jpg/jdatasrc.c deleted file mode 100644 index 7be59a8..0000000 --- a/jpg/jdatasrc.c +++ /dev/null @@ -1,275 +0,0 @@ -/* - * jdatasrc.c - * - * Copyright (C) 1994-1996, Thomas G. Lane. - * Modified 2009-2011 by Guido Vollbeding. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file contains decompression data source routines for the case of - * reading JPEG data from memory or from a file (or any stdio stream). - * While these routines are sufficient for most applications, - * some will want to use a different source manager. - * IMPORTANT: we assume that fread() will correctly transcribe an array of - * JOCTETs from 8-bit-wide elements on external storage. If char is wider - * than 8 bits on your machine, you may need to do some tweaking. - */ - -/* this is not a core library module, so it doesn't define JPEG_INTERNALS */ -#include "jinclude.h" -#include "jpeglib.h" -#include "jerror.h" - - -/* Expanded data source object for stdio input */ - -typedef struct { - struct jpeg_source_mgr pub; /* public fields */ - - FILE * infile; /* source stream */ - JOCTET * buffer; /* start of buffer */ - boolean start_of_file; /* have we gotten any data yet? */ -} my_source_mgr; - -typedef my_source_mgr * my_src_ptr; - -#define INPUT_BUF_SIZE 4096 /* choose an efficiently fread'able size */ - - -/* - * Initialize source --- called by jpeg_read_header - * before any data is actually read. - */ - -METHODDEF(void) -init_source (j_decompress_ptr cinfo) -{ - my_src_ptr src = (my_src_ptr) cinfo->src; - - /* We reset the empty-input-file flag for each image, - * but we don't clear the input buffer. - * This is correct behavior for reading a series of images from one source. - */ - src->start_of_file = TRUE; -} - -METHODDEF(void) -init_mem_source (j_decompress_ptr cinfo) -{ - /* no work necessary here */ -} - - -/* - * Fill the input buffer --- called whenever buffer is emptied. - * - * In typical applications, this should read fresh data into the buffer - * (ignoring the current state of next_input_byte & bytes_in_buffer), - * reset the pointer & count to the start of the buffer, and return TRUE - * indicating that the buffer has been reloaded. It is not necessary to - * fill the buffer entirely, only to obtain at least one more byte. - * - * There is no such thing as an EOF return. If the end of the file has been - * reached, the routine has a choice of ERREXIT() or inserting fake data into - * the buffer. In most cases, generating a warning message and inserting a - * fake EOI marker is the best course of action --- this will allow the - * decompressor to output however much of the image is there. However, - * the resulting error message is misleading if the real problem is an empty - * input file, so we handle that case specially. - * - * In applications that need to be able to suspend compression due to input - * not being available yet, a FALSE return indicates that no more data can be - * obtained right now, but more may be forthcoming later. In this situation, - * the decompressor will return to its caller (with an indication of the - * number of scanlines it has read, if any). The application should resume - * decompression after it has loaded more data into the input buffer. Note - * that there are substantial restrictions on the use of suspension --- see - * the documentation. - * - * When suspending, the decompressor will back up to a convenient restart point - * (typically the start of the current MCU). next_input_byte & bytes_in_buffer - * indicate where the restart point will be if the current call returns FALSE. - * Data beyond this point must be rescanned after resumption, so move it to - * the front of the buffer rather than discarding it. - */ - -METHODDEF(boolean) -fill_input_buffer (j_decompress_ptr cinfo) -{ - my_src_ptr src = (my_src_ptr) cinfo->src; - size_t nbytes; - - nbytes = JFREAD(src->infile, src->buffer, INPUT_BUF_SIZE); - - if (nbytes <= 0) { - if (src->start_of_file) /* Treat empty input file as fatal error */ - ERREXIT(cinfo, JERR_INPUT_EMPTY); - WARNMS(cinfo, JWRN_JPEG_EOF); - /* Insert a fake EOI marker */ - src->buffer[0] = (JOCTET) 0xFF; - src->buffer[1] = (JOCTET) JPEG_EOI; - nbytes = 2; - } - - src->pub.next_input_byte = src->buffer; - src->pub.bytes_in_buffer = nbytes; - src->start_of_file = FALSE; - - return TRUE; -} - -METHODDEF(boolean) -fill_mem_input_buffer (j_decompress_ptr cinfo) -{ - static const JOCTET mybuffer[4] = { - (JOCTET) 0xFF, (JOCTET) JPEG_EOI, 0, 0 - }; - - /* The whole JPEG data is expected to reside in the supplied memory - * buffer, so any request for more data beyond the given buffer size - * is treated as an error. - */ - WARNMS(cinfo, JWRN_JPEG_EOF); - - /* Insert a fake EOI marker */ - - cinfo->src->next_input_byte = mybuffer; - cinfo->src->bytes_in_buffer = 2; - - return TRUE; -} - - -/* - * Skip data --- used to skip over a potentially large amount of - * uninteresting data (such as an APPn marker). - * - * Writers of suspendable-input applications must note that skip_input_data - * is not granted the right to give a suspension return. If the skip extends - * beyond the data currently in the buffer, the buffer can be marked empty so - * that the next read will cause a fill_input_buffer call that can suspend. - * Arranging for additional bytes to be discarded before reloading the input - * buffer is the application writer's problem. - */ - -METHODDEF(void) -skip_input_data (j_decompress_ptr cinfo, long num_bytes) -{ - struct jpeg_source_mgr * src = cinfo->src; - - /* Just a dumb implementation for now. Could use fseek() except - * it doesn't work on pipes. Not clear that being smart is worth - * any trouble anyway --- large skips are infrequent. - */ - if (num_bytes > 0) { - while (num_bytes > (long) src->bytes_in_buffer) { - num_bytes -= (long) src->bytes_in_buffer; - (void) (*src->fill_input_buffer) (cinfo); - /* note we assume that fill_input_buffer will never return FALSE, - * so suspension need not be handled. - */ - } - src->next_input_byte += (size_t) num_bytes; - src->bytes_in_buffer -= (size_t) num_bytes; - } -} - - -/* - * An additional method that can be provided by data source modules is the - * resync_to_restart method for error recovery in the presence of RST markers. - * For the moment, this source module just uses the default resync method - * provided by the JPEG library. That method assumes that no backtracking - * is possible. - */ - - -/* - * Terminate source --- called by jpeg_finish_decompress - * after all data has been read. Often a no-op. - * - * NB: *not* called by jpeg_abort or jpeg_destroy; surrounding - * application must deal with any cleanup that should happen even - * for error exit. - */ - -METHODDEF(void) -term_source (j_decompress_ptr cinfo) -{ - /* no work necessary here */ -} - - -/* - * Prepare for input from a stdio stream. - * The caller must have already opened the stream, and is responsible - * for closing it after finishing decompression. - */ - -GLOBAL(void) -jpeg_stdio_src (j_decompress_ptr cinfo, FILE * infile) -{ - my_src_ptr src; - - /* The source object and input buffer are made permanent so that a series - * of JPEG images can be read from the same file by calling jpeg_stdio_src - * only before the first one. (If we discarded the buffer at the end of - * one image, we'd likely lose the start of the next one.) - * This makes it unsafe to use this manager and a different source - * manager serially with the same JPEG object. Caveat programmer. - */ - if (cinfo->src == NULL) { /* first time for this JPEG object? */ - cinfo->src = (struct jpeg_source_mgr *) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_PERMANENT, - SIZEOF(my_source_mgr)); - src = (my_src_ptr) cinfo->src; - src->buffer = (JOCTET *) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_PERMANENT, - INPUT_BUF_SIZE * SIZEOF(JOCTET)); - } - - src = (my_src_ptr) cinfo->src; - src->pub.init_source = init_source; - src->pub.fill_input_buffer = fill_input_buffer; - src->pub.skip_input_data = skip_input_data; - src->pub.resync_to_restart = jpeg_resync_to_restart; /* use default method */ - src->pub.term_source = term_source; - src->infile = infile; - src->pub.bytes_in_buffer = 0; /* forces fill_input_buffer on first read */ - src->pub.next_input_byte = NULL; /* until buffer loaded */ -} - - -/* - * Prepare for input from a supplied memory buffer. - * The buffer must contain the whole JPEG data. - */ - -GLOBAL(void) -jpeg_mem_src (j_decompress_ptr cinfo, - unsigned char * inbuffer, unsigned long insize) -{ - struct jpeg_source_mgr * src; - - if (inbuffer == NULL || insize == 0) /* Treat empty input as fatal error */ - ERREXIT(cinfo, JERR_INPUT_EMPTY); - - /* The source object is made permanent so that a series of JPEG images - * can be read from the same buffer by calling jpeg_mem_src only before - * the first one. - */ - if (cinfo->src == NULL) { /* first time for this JPEG object? */ - cinfo->src = (struct jpeg_source_mgr *) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_PERMANENT, - SIZEOF(struct jpeg_source_mgr)); - } - - src = cinfo->src; - src->init_source = init_mem_source; - src->fill_input_buffer = fill_mem_input_buffer; - src->skip_input_data = skip_input_data; - src->resync_to_restart = jpeg_resync_to_restart; /* use default method */ - src->term_source = term_source; - src->bytes_in_buffer = (size_t) insize; - src->next_input_byte = (JOCTET *) inbuffer; -} diff --git a/jpg/jdcoefct.c b/jpg/jdcoefct.c deleted file mode 100644 index ed02fc3..0000000 --- a/jpg/jdcoefct.c +++ /dev/null @@ -1,741 +0,0 @@ -/* - * jdcoefct.c - * - * Copyright (C) 1994-1997, Thomas G. Lane. - * Modified 2002-2011 by Guido Vollbeding. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file contains the coefficient buffer controller for decompression. - * This controller is the top level of the JPEG decompressor proper. - * The coefficient buffer lies between entropy decoding and inverse-DCT steps. - * - * In buffered-image mode, this controller is the interface between - * input-oriented processing and output-oriented processing. - * Also, the input side (only) is used when reading a file for transcoding. - */ - -#define JPEG_INTERNALS -#include "jinclude.h" -#include "jpeglib.h" - -/* Block smoothing is only applicable for progressive JPEG, so: */ -#ifndef D_PROGRESSIVE_SUPPORTED -#undef BLOCK_SMOOTHING_SUPPORTED -#endif - -/* Private buffer controller object */ - -typedef struct { - struct jpeg_d_coef_controller pub; /* public fields */ - - /* These variables keep track of the current location of the input side. */ - /* cinfo->input_iMCU_row is also used for this. */ - JDIMENSION MCU_ctr; /* counts MCUs processed in current row */ - int MCU_vert_offset; /* counts MCU rows within iMCU row */ - int MCU_rows_per_iMCU_row; /* number of such rows needed */ - - /* The output side's location is represented by cinfo->output_iMCU_row. */ - - /* In single-pass modes, it's sufficient to buffer just one MCU. - * We allocate a workspace of D_MAX_BLOCKS_IN_MCU coefficient blocks, - * and let the entropy decoder write into that workspace each time. - * (On 80x86, the workspace is FAR even though it's not really very big; - * this is to keep the module interfaces unchanged when a large coefficient - * buffer is necessary.) - * In multi-pass modes, this array points to the current MCU's blocks - * within the virtual arrays; it is used only by the input side. - */ - JBLOCKROW MCU_buffer[D_MAX_BLOCKS_IN_MCU]; - -#ifdef D_MULTISCAN_FILES_SUPPORTED - /* In multi-pass modes, we need a virtual block array for each component. */ - jvirt_barray_ptr whole_image[MAX_COMPONENTS]; -#endif - -#ifdef BLOCK_SMOOTHING_SUPPORTED - /* When doing block smoothing, we latch coefficient Al values here */ - int * coef_bits_latch; -#define SAVED_COEFS 6 /* we save coef_bits[0..5] */ -#endif -} my_coef_controller; - -typedef my_coef_controller * my_coef_ptr; - -/* Forward declarations */ -METHODDEF(int) decompress_onepass - JPP((j_decompress_ptr cinfo, JSAMPIMAGE output_buf)); -#ifdef D_MULTISCAN_FILES_SUPPORTED -METHODDEF(int) decompress_data - JPP((j_decompress_ptr cinfo, JSAMPIMAGE output_buf)); -#endif -#ifdef BLOCK_SMOOTHING_SUPPORTED -LOCAL(boolean) smoothing_ok JPP((j_decompress_ptr cinfo)); -METHODDEF(int) decompress_smooth_data - JPP((j_decompress_ptr cinfo, JSAMPIMAGE output_buf)); -#endif - - -LOCAL(void) -start_iMCU_row (j_decompress_ptr cinfo) -/* Reset within-iMCU-row counters for a new row (input side) */ -{ - my_coef_ptr coef = (my_coef_ptr) cinfo->coef; - - /* In an interleaved scan, an MCU row is the same as an iMCU row. - * In a noninterleaved scan, an iMCU row has v_samp_factor MCU rows. - * But at the bottom of the image, process only what's left. - */ - if (cinfo->comps_in_scan > 1) { - coef->MCU_rows_per_iMCU_row = 1; - } else { - if (cinfo->input_iMCU_row < (cinfo->total_iMCU_rows-1)) - coef->MCU_rows_per_iMCU_row = cinfo->cur_comp_info[0]->v_samp_factor; - else - coef->MCU_rows_per_iMCU_row = cinfo->cur_comp_info[0]->last_row_height; - } - - coef->MCU_ctr = 0; - coef->MCU_vert_offset = 0; -} - - -/* - * Initialize for an input processing pass. - */ - -METHODDEF(void) -start_input_pass (j_decompress_ptr cinfo) -{ - cinfo->input_iMCU_row = 0; - start_iMCU_row(cinfo); -} - - -/* - * Initialize for an output processing pass. - */ - -METHODDEF(void) -start_output_pass (j_decompress_ptr cinfo) -{ -#ifdef BLOCK_SMOOTHING_SUPPORTED - my_coef_ptr coef = (my_coef_ptr) cinfo->coef; - - /* If multipass, check to see whether to use block smoothing on this pass */ - if (coef->pub.coef_arrays != NULL) { - if (cinfo->do_block_smoothing && smoothing_ok(cinfo)) - coef->pub.decompress_data = decompress_smooth_data; - else - coef->pub.decompress_data = decompress_data; - } -#endif - cinfo->output_iMCU_row = 0; -} - - -/* - * Decompress and return some data in the single-pass case. - * Always attempts to emit one fully interleaved MCU row ("iMCU" row). - * Input and output must run in lockstep since we have only a one-MCU buffer. - * Return value is JPEG_ROW_COMPLETED, JPEG_SCAN_COMPLETED, or JPEG_SUSPENDED. - * - * NB: output_buf contains a plane for each component in image, - * which we index according to the component's SOF position. - */ - -METHODDEF(int) -decompress_onepass (j_decompress_ptr cinfo, JSAMPIMAGE output_buf) -{ - my_coef_ptr coef = (my_coef_ptr) cinfo->coef; - JDIMENSION MCU_col_num; /* index of current MCU within row */ - JDIMENSION last_MCU_col = cinfo->MCUs_per_row - 1; - JDIMENSION last_iMCU_row = cinfo->total_iMCU_rows - 1; - int blkn, ci, xindex, yindex, yoffset, useful_width; - JSAMPARRAY output_ptr; - JDIMENSION start_col, output_col; - jpeg_component_info *compptr; - inverse_DCT_method_ptr inverse_DCT; - - /* Loop to process as much as one whole iMCU row */ - for (yoffset = coef->MCU_vert_offset; yoffset < coef->MCU_rows_per_iMCU_row; - yoffset++) { - for (MCU_col_num = coef->MCU_ctr; MCU_col_num <= last_MCU_col; - MCU_col_num++) { - /* Try to fetch an MCU. Entropy decoder expects buffer to be zeroed. */ - if (cinfo->lim_Se) /* can bypass in DC only case */ - FMEMZERO((void FAR *) coef->MCU_buffer[0], - (size_t) (cinfo->blocks_in_MCU * SIZEOF(JBLOCK))); - if (! (*cinfo->entropy->decode_mcu) (cinfo, coef->MCU_buffer)) { - /* Suspension forced; update state counters and exit */ - coef->MCU_vert_offset = yoffset; - coef->MCU_ctr = MCU_col_num; - return JPEG_SUSPENDED; - } - /* Determine where data should go in output_buf and do the IDCT thing. - * We skip dummy blocks at the right and bottom edges (but blkn gets - * incremented past them!). Note the inner loop relies on having - * allocated the MCU_buffer[] blocks sequentially. - */ - blkn = 0; /* index of current DCT block within MCU */ - for (ci = 0; ci < cinfo->comps_in_scan; ci++) { - compptr = cinfo->cur_comp_info[ci]; - /* Don't bother to IDCT an uninteresting component. */ - if (! compptr->component_needed) { - blkn += compptr->MCU_blocks; - continue; - } - inverse_DCT = cinfo->idct->inverse_DCT[compptr->component_index]; - useful_width = (MCU_col_num < last_MCU_col) ? compptr->MCU_width - : compptr->last_col_width; - output_ptr = output_buf[compptr->component_index] + - yoffset * compptr->DCT_v_scaled_size; - start_col = MCU_col_num * compptr->MCU_sample_width; - for (yindex = 0; yindex < compptr->MCU_height; yindex++) { - if (cinfo->input_iMCU_row < last_iMCU_row || - yoffset+yindex < compptr->last_row_height) { - output_col = start_col; - for (xindex = 0; xindex < useful_width; xindex++) { - (*inverse_DCT) (cinfo, compptr, - (JCOEFPTR) coef->MCU_buffer[blkn+xindex], - output_ptr, output_col); - output_col += compptr->DCT_h_scaled_size; - } - } - blkn += compptr->MCU_width; - output_ptr += compptr->DCT_v_scaled_size; - } - } - } - /* Completed an MCU row, but perhaps not an iMCU row */ - coef->MCU_ctr = 0; - } - /* Completed the iMCU row, advance counters for next one */ - cinfo->output_iMCU_row++; - if (++(cinfo->input_iMCU_row) < cinfo->total_iMCU_rows) { - start_iMCU_row(cinfo); - return JPEG_ROW_COMPLETED; - } - /* Completed the scan */ - (*cinfo->inputctl->finish_input_pass) (cinfo); - return JPEG_SCAN_COMPLETED; -} - - -/* - * Dummy consume-input routine for single-pass operation. - */ - -METHODDEF(int) -dummy_consume_data (j_decompress_ptr cinfo) -{ - return JPEG_SUSPENDED; /* Always indicate nothing was done */ -} - - -#ifdef D_MULTISCAN_FILES_SUPPORTED - -/* - * Consume input data and store it in the full-image coefficient buffer. - * We read as much as one fully interleaved MCU row ("iMCU" row) per call, - * ie, v_samp_factor block rows for each component in the scan. - * Return value is JPEG_ROW_COMPLETED, JPEG_SCAN_COMPLETED, or JPEG_SUSPENDED. - */ - -METHODDEF(int) -consume_data (j_decompress_ptr cinfo) -{ - my_coef_ptr coef = (my_coef_ptr) cinfo->coef; - JDIMENSION MCU_col_num; /* index of current MCU within row */ - int blkn, ci, xindex, yindex, yoffset; - JDIMENSION start_col; - JBLOCKARRAY buffer[MAX_COMPS_IN_SCAN]; - JBLOCKROW buffer_ptr; - jpeg_component_info *compptr; - - /* Align the virtual buffers for the components used in this scan. */ - for (ci = 0; ci < cinfo->comps_in_scan; ci++) { - compptr = cinfo->cur_comp_info[ci]; - buffer[ci] = (*cinfo->mem->access_virt_barray) - ((j_common_ptr) cinfo, coef->whole_image[compptr->component_index], - cinfo->input_iMCU_row * compptr->v_samp_factor, - (JDIMENSION) compptr->v_samp_factor, TRUE); - /* Note: entropy decoder expects buffer to be zeroed, - * but this is handled automatically by the memory manager - * because we requested a pre-zeroed array. - */ - } - - /* Loop to process one whole iMCU row */ - for (yoffset = coef->MCU_vert_offset; yoffset < coef->MCU_rows_per_iMCU_row; - yoffset++) { - for (MCU_col_num = coef->MCU_ctr; MCU_col_num < cinfo->MCUs_per_row; - MCU_col_num++) { - /* Construct list of pointers to DCT blocks belonging to this MCU */ - blkn = 0; /* index of current DCT block within MCU */ - for (ci = 0; ci < cinfo->comps_in_scan; ci++) { - compptr = cinfo->cur_comp_info[ci]; - start_col = MCU_col_num * compptr->MCU_width; - for (yindex = 0; yindex < compptr->MCU_height; yindex++) { - buffer_ptr = buffer[ci][yindex+yoffset] + start_col; - for (xindex = 0; xindex < compptr->MCU_width; xindex++) { - coef->MCU_buffer[blkn++] = buffer_ptr++; - } - } - } - /* Try to fetch the MCU. */ - if (! (*cinfo->entropy->decode_mcu) (cinfo, coef->MCU_buffer)) { - /* Suspension forced; update state counters and exit */ - coef->MCU_vert_offset = yoffset; - coef->MCU_ctr = MCU_col_num; - return JPEG_SUSPENDED; - } - } - /* Completed an MCU row, but perhaps not an iMCU row */ - coef->MCU_ctr = 0; - } - /* Completed the iMCU row, advance counters for next one */ - if (++(cinfo->input_iMCU_row) < cinfo->total_iMCU_rows) { - start_iMCU_row(cinfo); - return JPEG_ROW_COMPLETED; - } - /* Completed the scan */ - (*cinfo->inputctl->finish_input_pass) (cinfo); - return JPEG_SCAN_COMPLETED; -} - - -/* - * Decompress and return some data in the multi-pass case. - * Always attempts to emit one fully interleaved MCU row ("iMCU" row). - * Return value is JPEG_ROW_COMPLETED, JPEG_SCAN_COMPLETED, or JPEG_SUSPENDED. - * - * NB: output_buf contains a plane for each component in image. - */ - -METHODDEF(int) -decompress_data (j_decompress_ptr cinfo, JSAMPIMAGE output_buf) -{ - my_coef_ptr coef = (my_coef_ptr) cinfo->coef; - JDIMENSION last_iMCU_row = cinfo->total_iMCU_rows - 1; - JDIMENSION block_num; - int ci, block_row, block_rows; - JBLOCKARRAY buffer; - JBLOCKROW buffer_ptr; - JSAMPARRAY output_ptr; - JDIMENSION output_col; - jpeg_component_info *compptr; - inverse_DCT_method_ptr inverse_DCT; - - /* Force some input to be done if we are getting ahead of the input. */ - while (cinfo->input_scan_number < cinfo->output_scan_number || - (cinfo->input_scan_number == cinfo->output_scan_number && - cinfo->input_iMCU_row <= cinfo->output_iMCU_row)) { - if ((*cinfo->inputctl->consume_input)(cinfo) == JPEG_SUSPENDED) - return JPEG_SUSPENDED; - } - - /* OK, output from the virtual arrays. */ - for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components; - ci++, compptr++) { - /* Don't bother to IDCT an uninteresting component. */ - if (! compptr->component_needed) - continue; - /* Align the virtual buffer for this component. */ - buffer = (*cinfo->mem->access_virt_barray) - ((j_common_ptr) cinfo, coef->whole_image[ci], - cinfo->output_iMCU_row * compptr->v_samp_factor, - (JDIMENSION) compptr->v_samp_factor, FALSE); - /* Count non-dummy DCT block rows in this iMCU row. */ - if (cinfo->output_iMCU_row < last_iMCU_row) - block_rows = compptr->v_samp_factor; - else { - /* NB: can't use last_row_height here; it is input-side-dependent! */ - block_rows = (int) (compptr->height_in_blocks % compptr->v_samp_factor); - if (block_rows == 0) block_rows = compptr->v_samp_factor; - } - inverse_DCT = cinfo->idct->inverse_DCT[ci]; - output_ptr = output_buf[ci]; - /* Loop over all DCT blocks to be processed. */ - for (block_row = 0; block_row < block_rows; block_row++) { - buffer_ptr = buffer[block_row]; - output_col = 0; - for (block_num = 0; block_num < compptr->width_in_blocks; block_num++) { - (*inverse_DCT) (cinfo, compptr, (JCOEFPTR) buffer_ptr, - output_ptr, output_col); - buffer_ptr++; - output_col += compptr->DCT_h_scaled_size; - } - output_ptr += compptr->DCT_v_scaled_size; - } - } - - if (++(cinfo->output_iMCU_row) < cinfo->total_iMCU_rows) - return JPEG_ROW_COMPLETED; - return JPEG_SCAN_COMPLETED; -} - -#endif /* D_MULTISCAN_FILES_SUPPORTED */ - - -#ifdef BLOCK_SMOOTHING_SUPPORTED - -/* - * This code applies interblock smoothing as described by section K.8 - * of the JPEG standard: the first 5 AC coefficients are estimated from - * the DC values of a DCT block and its 8 neighboring blocks. - * We apply smoothing only for progressive JPEG decoding, and only if - * the coefficients it can estimate are not yet known to full precision. - */ - -/* Natural-order array positions of the first 5 zigzag-order coefficients */ -#define Q01_POS 1 -#define Q10_POS 8 -#define Q20_POS 16 -#define Q11_POS 9 -#define Q02_POS 2 - -/* - * Determine whether block smoothing is applicable and safe. - * We also latch the current states of the coef_bits[] entries for the - * AC coefficients; otherwise, if the input side of the decompressor - * advances into a new scan, we might think the coefficients are known - * more accurately than they really are. - */ - -LOCAL(boolean) -smoothing_ok (j_decompress_ptr cinfo) -{ - my_coef_ptr coef = (my_coef_ptr) cinfo->coef; - boolean smoothing_useful = FALSE; - int ci, coefi; - jpeg_component_info *compptr; - JQUANT_TBL * qtable; - int * coef_bits; - int * coef_bits_latch; - - if (! cinfo->progressive_mode || cinfo->coef_bits == NULL) - return FALSE; - - /* Allocate latch area if not already done */ - if (coef->coef_bits_latch == NULL) - coef->coef_bits_latch = (int *) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - cinfo->num_components * - (SAVED_COEFS * SIZEOF(int))); - coef_bits_latch = coef->coef_bits_latch; - - for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components; - ci++, compptr++) { - /* All components' quantization values must already be latched. */ - if ((qtable = compptr->quant_table) == NULL) - return FALSE; - /* Verify DC & first 5 AC quantizers are nonzero to avoid zero-divide. */ - if (qtable->quantval[0] == 0 || - qtable->quantval[Q01_POS] == 0 || - qtable->quantval[Q10_POS] == 0 || - qtable->quantval[Q20_POS] == 0 || - qtable->quantval[Q11_POS] == 0 || - qtable->quantval[Q02_POS] == 0) - return FALSE; - /* DC values must be at least partly known for all components. */ - coef_bits = cinfo->coef_bits[ci]; - if (coef_bits[0] < 0) - return FALSE; - /* Block smoothing is helpful if some AC coefficients remain inaccurate. */ - for (coefi = 1; coefi <= 5; coefi++) { - coef_bits_latch[coefi] = coef_bits[coefi]; - if (coef_bits[coefi] != 0) - smoothing_useful = TRUE; - } - coef_bits_latch += SAVED_COEFS; - } - - return smoothing_useful; -} - - -/* - * Variant of decompress_data for use when doing block smoothing. - */ - -METHODDEF(int) -decompress_smooth_data (j_decompress_ptr cinfo, JSAMPIMAGE output_buf) -{ - my_coef_ptr coef = (my_coef_ptr) cinfo->coef; - JDIMENSION last_iMCU_row = cinfo->total_iMCU_rows - 1; - JDIMENSION block_num, last_block_column; - int ci, block_row, block_rows, access_rows; - JBLOCKARRAY buffer; - JBLOCKROW buffer_ptr, prev_block_row, next_block_row; - JSAMPARRAY output_ptr; - JDIMENSION output_col; - jpeg_component_info *compptr; - inverse_DCT_method_ptr inverse_DCT; - boolean first_row, last_row; - JBLOCK workspace; - int *coef_bits; - JQUANT_TBL *quanttbl; - INT32 Q00,Q01,Q02,Q10,Q11,Q20, num; - int DC1,DC2,DC3,DC4,DC5,DC6,DC7,DC8,DC9; - int Al, pred; - - /* Force some input to be done if we are getting ahead of the input. */ - while (cinfo->input_scan_number <= cinfo->output_scan_number && - ! cinfo->inputctl->eoi_reached) { - if (cinfo->input_scan_number == cinfo->output_scan_number) { - /* If input is working on current scan, we ordinarily want it to - * have completed the current row. But if input scan is DC, - * we want it to keep one row ahead so that next block row's DC - * values are up to date. - */ - JDIMENSION delta = (cinfo->Ss == 0) ? 1 : 0; - if (cinfo->input_iMCU_row > cinfo->output_iMCU_row+delta) - break; - } - if ((*cinfo->inputctl->consume_input)(cinfo) == JPEG_SUSPENDED) - return JPEG_SUSPENDED; - } - - /* OK, output from the virtual arrays. */ - for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components; - ci++, compptr++) { - /* Don't bother to IDCT an uninteresting component. */ - if (! compptr->component_needed) - continue; - /* Count non-dummy DCT block rows in this iMCU row. */ - if (cinfo->output_iMCU_row < last_iMCU_row) { - block_rows = compptr->v_samp_factor; - access_rows = block_rows * 2; /* this and next iMCU row */ - last_row = FALSE; - } else { - /* NB: can't use last_row_height here; it is input-side-dependent! */ - block_rows = (int) (compptr->height_in_blocks % compptr->v_samp_factor); - if (block_rows == 0) block_rows = compptr->v_samp_factor; - access_rows = block_rows; /* this iMCU row only */ - last_row = TRUE; - } - /* Align the virtual buffer for this component. */ - if (cinfo->output_iMCU_row > 0) { - access_rows += compptr->v_samp_factor; /* prior iMCU row too */ - buffer = (*cinfo->mem->access_virt_barray) - ((j_common_ptr) cinfo, coef->whole_image[ci], - (cinfo->output_iMCU_row - 1) * compptr->v_samp_factor, - (JDIMENSION) access_rows, FALSE); - buffer += compptr->v_samp_factor; /* point to current iMCU row */ - first_row = FALSE; - } else { - buffer = (*cinfo->mem->access_virt_barray) - ((j_common_ptr) cinfo, coef->whole_image[ci], - (JDIMENSION) 0, (JDIMENSION) access_rows, FALSE); - first_row = TRUE; - } - /* Fetch component-dependent info */ - coef_bits = coef->coef_bits_latch + (ci * SAVED_COEFS); - quanttbl = compptr->quant_table; - Q00 = quanttbl->quantval[0]; - Q01 = quanttbl->quantval[Q01_POS]; - Q10 = quanttbl->quantval[Q10_POS]; - Q20 = quanttbl->quantval[Q20_POS]; - Q11 = quanttbl->quantval[Q11_POS]; - Q02 = quanttbl->quantval[Q02_POS]; - inverse_DCT = cinfo->idct->inverse_DCT[ci]; - output_ptr = output_buf[ci]; - /* Loop over all DCT blocks to be processed. */ - for (block_row = 0; block_row < block_rows; block_row++) { - buffer_ptr = buffer[block_row]; - if (first_row && block_row == 0) - prev_block_row = buffer_ptr; - else - prev_block_row = buffer[block_row-1]; - if (last_row && block_row == block_rows-1) - next_block_row = buffer_ptr; - else - next_block_row = buffer[block_row+1]; - /* We fetch the surrounding DC values using a sliding-register approach. - * Initialize all nine here so as to do the right thing on narrow pics. - */ - DC1 = DC2 = DC3 = (int) prev_block_row[0][0]; - DC4 = DC5 = DC6 = (int) buffer_ptr[0][0]; - DC7 = DC8 = DC9 = (int) next_block_row[0][0]; - output_col = 0; - last_block_column = compptr->width_in_blocks - 1; - for (block_num = 0; block_num <= last_block_column; block_num++) { - /* Fetch current DCT block into workspace so we can modify it. */ - jcopy_block_row(buffer_ptr, (JBLOCKROW) workspace, (JDIMENSION) 1); - /* Update DC values */ - if (block_num < last_block_column) { - DC3 = (int) prev_block_row[1][0]; - DC6 = (int) buffer_ptr[1][0]; - DC9 = (int) next_block_row[1][0]; - } - /* Compute coefficient estimates per K.8. - * An estimate is applied only if coefficient is still zero, - * and is not known to be fully accurate. - */ - /* AC01 */ - if ((Al=coef_bits[1]) != 0 && workspace[1] == 0) { - num = 36 * Q00 * (DC4 - DC6); - if (num >= 0) { - pred = (int) (((Q01<<7) + num) / (Q01<<8)); - if (Al > 0 && pred >= (1< 0 && pred >= (1<= 0) { - pred = (int) (((Q10<<7) + num) / (Q10<<8)); - if (Al > 0 && pred >= (1< 0 && pred >= (1<= 0) { - pred = (int) (((Q20<<7) + num) / (Q20<<8)); - if (Al > 0 && pred >= (1< 0 && pred >= (1<= 0) { - pred = (int) (((Q11<<7) + num) / (Q11<<8)); - if (Al > 0 && pred >= (1< 0 && pred >= (1<= 0) { - pred = (int) (((Q02<<7) + num) / (Q02<<8)); - if (Al > 0 && pred >= (1< 0 && pred >= (1<DCT_h_scaled_size; - } - output_ptr += compptr->DCT_v_scaled_size; - } - } - - if (++(cinfo->output_iMCU_row) < cinfo->total_iMCU_rows) - return JPEG_ROW_COMPLETED; - return JPEG_SCAN_COMPLETED; -} - -#endif /* BLOCK_SMOOTHING_SUPPORTED */ - - -/* - * Initialize coefficient buffer controller. - */ - -GLOBAL(void) -jinit_d_coef_controller (j_decompress_ptr cinfo, boolean need_full_buffer) -{ - my_coef_ptr coef; - - coef = (my_coef_ptr) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - SIZEOF(my_coef_controller)); - cinfo->coef = (struct jpeg_d_coef_controller *) coef; - coef->pub.start_input_pass = start_input_pass; - coef->pub.start_output_pass = start_output_pass; -#ifdef BLOCK_SMOOTHING_SUPPORTED - coef->coef_bits_latch = NULL; -#endif - - /* Create the coefficient buffer. */ - if (need_full_buffer) { -#ifdef D_MULTISCAN_FILES_SUPPORTED - /* Allocate a full-image virtual array for each component, */ - /* padded to a multiple of samp_factor DCT blocks in each direction. */ - /* Note we ask for a pre-zeroed array. */ - int ci, access_rows; - jpeg_component_info *compptr; - - for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components; - ci++, compptr++) { - access_rows = compptr->v_samp_factor; -#ifdef BLOCK_SMOOTHING_SUPPORTED - /* If block smoothing could be used, need a bigger window */ - if (cinfo->progressive_mode) - access_rows *= 3; -#endif - coef->whole_image[ci] = (*cinfo->mem->request_virt_barray) - ((j_common_ptr) cinfo, JPOOL_IMAGE, TRUE, - (JDIMENSION) jround_up((long) compptr->width_in_blocks, - (long) compptr->h_samp_factor), - (JDIMENSION) jround_up((long) compptr->height_in_blocks, - (long) compptr->v_samp_factor), - (JDIMENSION) access_rows); - } - coef->pub.consume_data = consume_data; - coef->pub.decompress_data = decompress_data; - coef->pub.coef_arrays = coef->whole_image; /* link to virtual arrays */ -#else - ERREXIT(cinfo, JERR_NOT_COMPILED); -#endif - } else { - /* We only need a single-MCU buffer. */ - JBLOCKROW buffer; - int i; - - buffer = (JBLOCKROW) - (*cinfo->mem->alloc_large) ((j_common_ptr) cinfo, JPOOL_IMAGE, - D_MAX_BLOCKS_IN_MCU * SIZEOF(JBLOCK)); - for (i = 0; i < D_MAX_BLOCKS_IN_MCU; i++) { - coef->MCU_buffer[i] = buffer + i; - } - if (cinfo->lim_Se == 0) /* DC only case: want to bypass later */ - FMEMZERO((void FAR *) buffer, - (size_t) (D_MAX_BLOCKS_IN_MCU * SIZEOF(JBLOCK))); - coef->pub.consume_data = dummy_consume_data; - coef->pub.decompress_data = decompress_onepass; - coef->pub.coef_arrays = NULL; /* flag for no virtual arrays */ - } -} diff --git a/jpg/jdcolor.c b/jpg/jdcolor.c deleted file mode 100644 index 83e4d06..0000000 --- a/jpg/jdcolor.c +++ /dev/null @@ -1,512 +0,0 @@ -/* - * jdcolor.c - * - * Copyright (C) 1991-1997, Thomas G. Lane. - * Modified 2011 by Guido Vollbeding. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file contains output colorspace conversion routines. - */ - -#define JPEG_INTERNALS -#include "jinclude.h" -#include "jpeglib.h" - - -/* Private subobject */ - -typedef struct { - struct jpeg_color_deconverter pub; /* public fields */ - - /* Private state for YCC->RGB conversion */ - int * Cr_r_tab; /* => table for Cr to R conversion */ - int * Cb_b_tab; /* => table for Cb to B conversion */ - INT32 * Cr_g_tab; /* => table for Cr to G conversion */ - INT32 * Cb_g_tab; /* => table for Cb to G conversion */ - - /* Private state for RGB->Y conversion */ - INT32 * rgb_y_tab; /* => table for RGB to Y conversion */ -} my_color_deconverter; - -typedef my_color_deconverter * my_cconvert_ptr; - - -/**************** YCbCr -> RGB conversion: most common case **************/ -/**************** RGB -> Y conversion: less common case **************/ - -/* - * YCbCr is defined per CCIR 601-1, except that Cb and Cr are - * normalized to the range 0..MAXJSAMPLE rather than -0.5 .. 0.5. - * The conversion equations to be implemented are therefore - * - * R = Y + 1.40200 * Cr - * G = Y - 0.34414 * Cb - 0.71414 * Cr - * B = Y + 1.77200 * Cb - * - * Y = 0.29900 * R + 0.58700 * G + 0.11400 * B - * - * where Cb and Cr represent the incoming values less CENTERJSAMPLE. - * (These numbers are derived from TIFF 6.0 section 21, dated 3-June-92.) - * - * To avoid floating-point arithmetic, we represent the fractional constants - * as integers scaled up by 2^16 (about 4 digits precision); we have to divide - * the products by 2^16, with appropriate rounding, to get the correct answer. - * Notice that Y, being an integral input, does not contribute any fraction - * so it need not participate in the rounding. - * - * For even more speed, we avoid doing any multiplications in the inner loop - * by precalculating the constants times Cb and Cr for all possible values. - * For 8-bit JSAMPLEs this is very reasonable (only 256 entries per table); - * for 12-bit samples it is still acceptable. It's not very reasonable for - * 16-bit samples, but if you want lossless storage you shouldn't be changing - * colorspace anyway. - * The Cr=>R and Cb=>B values can be rounded to integers in advance; the - * values for the G calculation are left scaled up, since we must add them - * together before rounding. - */ - -#define SCALEBITS 16 /* speediest right-shift on some machines */ -#define ONE_HALF ((INT32) 1 << (SCALEBITS-1)) -#define FIX(x) ((INT32) ((x) * (1L<Y conversion and divide it up into - * three parts, instead of doing three alloc_small requests. This lets us - * use a single table base address, which can be held in a register in the - * inner loops on many machines (more than can hold all three addresses, - * anyway). - */ - -#define R_Y_OFF 0 /* offset to R => Y section */ -#define G_Y_OFF (1*(MAXJSAMPLE+1)) /* offset to G => Y section */ -#define B_Y_OFF (2*(MAXJSAMPLE+1)) /* etc. */ -#define TABLE_SIZE (3*(MAXJSAMPLE+1)) - - -/* - * Initialize tables for YCC->RGB colorspace conversion. - */ - -LOCAL(void) -build_ycc_rgb_table (j_decompress_ptr cinfo) -{ - my_cconvert_ptr cconvert = (my_cconvert_ptr) cinfo->cconvert; - int i; - INT32 x; - SHIFT_TEMPS - - cconvert->Cr_r_tab = (int *) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - (MAXJSAMPLE+1) * SIZEOF(int)); - cconvert->Cb_b_tab = (int *) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - (MAXJSAMPLE+1) * SIZEOF(int)); - cconvert->Cr_g_tab = (INT32 *) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - (MAXJSAMPLE+1) * SIZEOF(INT32)); - cconvert->Cb_g_tab = (INT32 *) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - (MAXJSAMPLE+1) * SIZEOF(INT32)); - - for (i = 0, x = -CENTERJSAMPLE; i <= MAXJSAMPLE; i++, x++) { - /* i is the actual input pixel value, in the range 0..MAXJSAMPLE */ - /* The Cb or Cr value we are thinking of is x = i - CENTERJSAMPLE */ - /* Cr=>R value is nearest int to 1.40200 * x */ - cconvert->Cr_r_tab[i] = (int) - RIGHT_SHIFT(FIX(1.40200) * x + ONE_HALF, SCALEBITS); - /* Cb=>B value is nearest int to 1.77200 * x */ - cconvert->Cb_b_tab[i] = (int) - RIGHT_SHIFT(FIX(1.77200) * x + ONE_HALF, SCALEBITS); - /* Cr=>G value is scaled-up -0.71414 * x */ - cconvert->Cr_g_tab[i] = (- FIX(0.71414)) * x; - /* Cb=>G value is scaled-up -0.34414 * x */ - /* We also add in ONE_HALF so that need not do it in inner loop */ - cconvert->Cb_g_tab[i] = (- FIX(0.34414)) * x + ONE_HALF; - } -} - - -/* - * Convert some rows of samples to the output colorspace. - * - * Note that we change from noninterleaved, one-plane-per-component format - * to interleaved-pixel format. The output buffer is therefore three times - * as wide as the input buffer. - * A starting row offset is provided only for the input buffer. The caller - * can easily adjust the passed output_buf value to accommodate any row - * offset required on that side. - */ - -METHODDEF(void) -ycc_rgb_convert (j_decompress_ptr cinfo, - JSAMPIMAGE input_buf, JDIMENSION input_row, - JSAMPARRAY output_buf, int num_rows) -{ - my_cconvert_ptr cconvert = (my_cconvert_ptr) cinfo->cconvert; - register int y, cb, cr; - register JSAMPROW outptr; - register JSAMPROW inptr0, inptr1, inptr2; - register JDIMENSION col; - JDIMENSION num_cols = cinfo->output_width; - /* copy these pointers into registers if possible */ - register JSAMPLE * range_limit = cinfo->sample_range_limit; - register int * Crrtab = cconvert->Cr_r_tab; - register int * Cbbtab = cconvert->Cb_b_tab; - register INT32 * Crgtab = cconvert->Cr_g_tab; - register INT32 * Cbgtab = cconvert->Cb_g_tab; - SHIFT_TEMPS - - while (--num_rows >= 0) { - inptr0 = input_buf[0][input_row]; - inptr1 = input_buf[1][input_row]; - inptr2 = input_buf[2][input_row]; - input_row++; - outptr = *output_buf++; - for (col = 0; col < num_cols; col++) { - y = GETJSAMPLE(inptr0[col]); - cb = GETJSAMPLE(inptr1[col]); - cr = GETJSAMPLE(inptr2[col]); - /* Range-limiting is essential due to noise introduced by DCT losses. */ - outptr[RGB_RED] = range_limit[y + Crrtab[cr]]; - outptr[RGB_GREEN] = range_limit[y + - ((int) RIGHT_SHIFT(Cbgtab[cb] + Crgtab[cr], - SCALEBITS))]; - outptr[RGB_BLUE] = range_limit[y + Cbbtab[cb]]; - outptr += RGB_PIXELSIZE; - } - } -} - - -/**************** Cases other than YCbCr -> RGB **************/ - - -/* - * Initialize for RGB->grayscale colorspace conversion. - */ - -LOCAL(void) -build_rgb_y_table (j_decompress_ptr cinfo) -{ - my_cconvert_ptr cconvert = (my_cconvert_ptr) cinfo->cconvert; - INT32 * rgb_y_tab; - INT32 i; - - /* Allocate and fill in the conversion tables. */ - cconvert->rgb_y_tab = rgb_y_tab = (INT32 *) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - (TABLE_SIZE * SIZEOF(INT32))); - - for (i = 0; i <= MAXJSAMPLE; i++) { - rgb_y_tab[i+R_Y_OFF] = FIX(0.29900) * i; - rgb_y_tab[i+G_Y_OFF] = FIX(0.58700) * i; - rgb_y_tab[i+B_Y_OFF] = FIX(0.11400) * i + ONE_HALF; - } -} - - -/* - * Convert RGB to grayscale. - */ - -METHODDEF(void) -rgb_gray_convert (j_decompress_ptr cinfo, - JSAMPIMAGE input_buf, JDIMENSION input_row, - JSAMPARRAY output_buf, int num_rows) -{ - my_cconvert_ptr cconvert = (my_cconvert_ptr) cinfo->cconvert; - register int r, g, b; - register INT32 * ctab = cconvert->rgb_y_tab; - register JSAMPROW outptr; - register JSAMPROW inptr0, inptr1, inptr2; - register JDIMENSION col; - JDIMENSION num_cols = cinfo->output_width; - - while (--num_rows >= 0) { - inptr0 = input_buf[0][input_row]; - inptr1 = input_buf[1][input_row]; - inptr2 = input_buf[2][input_row]; - input_row++; - outptr = *output_buf++; - for (col = 0; col < num_cols; col++) { - r = GETJSAMPLE(inptr0[col]); - g = GETJSAMPLE(inptr1[col]); - b = GETJSAMPLE(inptr2[col]); - /* Y */ - outptr[col] = (JSAMPLE) - ((ctab[r+R_Y_OFF] + ctab[g+G_Y_OFF] + ctab[b+B_Y_OFF]) - >> SCALEBITS); - } - } -} - - -/* - * No colorspace change, but conversion from separate-planes - * to interleaved representation. - */ - -METHODDEF(void) -rgb_convert (j_decompress_ptr cinfo, - JSAMPIMAGE input_buf, JDIMENSION input_row, - JSAMPARRAY output_buf, int num_rows) -{ - register JSAMPROW outptr; - register JSAMPROW inptr0, inptr1, inptr2; - register JDIMENSION col; - JDIMENSION num_cols = cinfo->output_width; - - while (--num_rows >= 0) { - inptr0 = input_buf[0][input_row]; - inptr1 = input_buf[1][input_row]; - inptr2 = input_buf[2][input_row]; - input_row++; - outptr = *output_buf++; - for (col = 0; col < num_cols; col++) { - /* We can dispense with GETJSAMPLE() here */ - outptr[RGB_RED] = inptr0[col]; - outptr[RGB_GREEN] = inptr1[col]; - outptr[RGB_BLUE] = inptr2[col]; - outptr += RGB_PIXELSIZE; - } - } -} - - -/* - * Color conversion for no colorspace change: just copy the data, - * converting from separate-planes to interleaved representation. - */ - -METHODDEF(void) -null_convert (j_decompress_ptr cinfo, - JSAMPIMAGE input_buf, JDIMENSION input_row, - JSAMPARRAY output_buf, int num_rows) -{ - register JSAMPROW inptr, outptr; - register JDIMENSION count; - register int num_components = cinfo->num_components; - JDIMENSION num_cols = cinfo->output_width; - int ci; - - while (--num_rows >= 0) { - for (ci = 0; ci < num_components; ci++) { - inptr = input_buf[ci][input_row]; - outptr = output_buf[0] + ci; - for (count = num_cols; count > 0; count--) { - *outptr = *inptr++; /* needn't bother with GETJSAMPLE() here */ - outptr += num_components; - } - } - input_row++; - output_buf++; - } -} - - -/* - * Color conversion for grayscale: just copy the data. - * This also works for YCbCr -> grayscale conversion, in which - * we just copy the Y (luminance) component and ignore chrominance. - */ - -METHODDEF(void) -grayscale_convert (j_decompress_ptr cinfo, - JSAMPIMAGE input_buf, JDIMENSION input_row, - JSAMPARRAY output_buf, int num_rows) -{ - jcopy_sample_rows(input_buf[0], (int) input_row, output_buf, 0, - num_rows, cinfo->output_width); -} - - -/* - * Convert grayscale to RGB: just duplicate the graylevel three times. - * This is provided to support applications that don't want to cope - * with grayscale as a separate case. - */ - -METHODDEF(void) -gray_rgb_convert (j_decompress_ptr cinfo, - JSAMPIMAGE input_buf, JDIMENSION input_row, - JSAMPARRAY output_buf, int num_rows) -{ - register JSAMPROW inptr, outptr; - register JDIMENSION col; - JDIMENSION num_cols = cinfo->output_width; - - while (--num_rows >= 0) { - inptr = input_buf[0][input_row++]; - outptr = *output_buf++; - for (col = 0; col < num_cols; col++) { - /* We can dispense with GETJSAMPLE() here */ - outptr[RGB_RED] = outptr[RGB_GREEN] = outptr[RGB_BLUE] = inptr[col]; - outptr += RGB_PIXELSIZE; - } - } -} - - -/* - * Adobe-style YCCK->CMYK conversion. - * We convert YCbCr to R=1-C, G=1-M, and B=1-Y using the same - * conversion as above, while passing K (black) unchanged. - * We assume build_ycc_rgb_table has been called. - */ - -METHODDEF(void) -ycck_cmyk_convert (j_decompress_ptr cinfo, - JSAMPIMAGE input_buf, JDIMENSION input_row, - JSAMPARRAY output_buf, int num_rows) -{ - my_cconvert_ptr cconvert = (my_cconvert_ptr) cinfo->cconvert; - register int y, cb, cr; - register JSAMPROW outptr; - register JSAMPROW inptr0, inptr1, inptr2, inptr3; - register JDIMENSION col; - JDIMENSION num_cols = cinfo->output_width; - /* copy these pointers into registers if possible */ - register JSAMPLE * range_limit = cinfo->sample_range_limit; - register int * Crrtab = cconvert->Cr_r_tab; - register int * Cbbtab = cconvert->Cb_b_tab; - register INT32 * Crgtab = cconvert->Cr_g_tab; - register INT32 * Cbgtab = cconvert->Cb_g_tab; - SHIFT_TEMPS - - while (--num_rows >= 0) { - inptr0 = input_buf[0][input_row]; - inptr1 = input_buf[1][input_row]; - inptr2 = input_buf[2][input_row]; - inptr3 = input_buf[3][input_row]; - input_row++; - outptr = *output_buf++; - for (col = 0; col < num_cols; col++) { - y = GETJSAMPLE(inptr0[col]); - cb = GETJSAMPLE(inptr1[col]); - cr = GETJSAMPLE(inptr2[col]); - /* Range-limiting is essential due to noise introduced by DCT losses. */ - outptr[0] = range_limit[MAXJSAMPLE - (y + Crrtab[cr])]; /* red */ - outptr[1] = range_limit[MAXJSAMPLE - (y + /* green */ - ((int) RIGHT_SHIFT(Cbgtab[cb] + Crgtab[cr], - SCALEBITS)))]; - outptr[2] = range_limit[MAXJSAMPLE - (y + Cbbtab[cb])]; /* blue */ - /* K passes through unchanged */ - outptr[3] = inptr3[col]; /* don't need GETJSAMPLE here */ - outptr += 4; - } - } -} - - -/* - * Empty method for start_pass. - */ - -METHODDEF(void) -start_pass_dcolor (j_decompress_ptr cinfo) -{ - /* no work needed */ -} - - -/* - * Module initialization routine for output colorspace conversion. - */ - -GLOBAL(void) -jinit_color_deconverter (j_decompress_ptr cinfo) -{ - my_cconvert_ptr cconvert; - int ci; - - cconvert = (my_cconvert_ptr) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - SIZEOF(my_color_deconverter)); - cinfo->cconvert = (struct jpeg_color_deconverter *) cconvert; - cconvert->pub.start_pass = start_pass_dcolor; - - /* Make sure num_components agrees with jpeg_color_space */ - switch (cinfo->jpeg_color_space) { - case JCS_GRAYSCALE: - if (cinfo->num_components != 1) - ERREXIT(cinfo, JERR_BAD_J_COLORSPACE); - break; - - case JCS_RGB: - case JCS_YCbCr: - if (cinfo->num_components != 3) - ERREXIT(cinfo, JERR_BAD_J_COLORSPACE); - break; - - case JCS_CMYK: - case JCS_YCCK: - if (cinfo->num_components != 4) - ERREXIT(cinfo, JERR_BAD_J_COLORSPACE); - break; - - default: /* JCS_UNKNOWN can be anything */ - if (cinfo->num_components < 1) - ERREXIT(cinfo, JERR_BAD_J_COLORSPACE); - break; - } - - /* Set out_color_components and conversion method based on requested space. - * Also clear the component_needed flags for any unused components, - * so that earlier pipeline stages can avoid useless computation. - */ - - switch (cinfo->out_color_space) { - case JCS_GRAYSCALE: - cinfo->out_color_components = 1; - if (cinfo->jpeg_color_space == JCS_GRAYSCALE || - cinfo->jpeg_color_space == JCS_YCbCr) { - cconvert->pub.color_convert = grayscale_convert; - /* For color->grayscale conversion, only the Y (0) component is needed */ - for (ci = 1; ci < cinfo->num_components; ci++) - cinfo->comp_info[ci].component_needed = FALSE; - } else if (cinfo->jpeg_color_space == JCS_RGB) { - cconvert->pub.color_convert = rgb_gray_convert; - build_rgb_y_table(cinfo); - } else - ERREXIT(cinfo, JERR_CONVERSION_NOTIMPL); - break; - - case JCS_RGB: - cinfo->out_color_components = RGB_PIXELSIZE; - if (cinfo->jpeg_color_space == JCS_YCbCr) { - cconvert->pub.color_convert = ycc_rgb_convert; - build_ycc_rgb_table(cinfo); - } else if (cinfo->jpeg_color_space == JCS_GRAYSCALE) { - cconvert->pub.color_convert = gray_rgb_convert; - } else if (cinfo->jpeg_color_space == JCS_RGB) { - cconvert->pub.color_convert = rgb_convert; - } else - ERREXIT(cinfo, JERR_CONVERSION_NOTIMPL); - break; - - case JCS_CMYK: - cinfo->out_color_components = 4; - if (cinfo->jpeg_color_space == JCS_YCCK) { - cconvert->pub.color_convert = ycck_cmyk_convert; - build_ycc_rgb_table(cinfo); - } else if (cinfo->jpeg_color_space == JCS_CMYK) { - cconvert->pub.color_convert = null_convert; - } else - ERREXIT(cinfo, JERR_CONVERSION_NOTIMPL); - break; - - default: - /* Permit null conversion to same output space */ - if (cinfo->out_color_space == cinfo->jpeg_color_space) { - cinfo->out_color_components = cinfo->num_components; - cconvert->pub.color_convert = null_convert; - } else /* unsupported non-null conversion */ - ERREXIT(cinfo, JERR_CONVERSION_NOTIMPL); - break; - } - - if (cinfo->quantize_colors) - cinfo->output_components = 1; /* single colormapped output component */ - else - cinfo->output_components = cinfo->out_color_components; -} diff --git a/jpg/jdct.h b/jpg/jdct.h deleted file mode 100644 index 360dec8..0000000 --- a/jpg/jdct.h +++ /dev/null @@ -1,393 +0,0 @@ -/* - * jdct.h - * - * Copyright (C) 1994-1996, Thomas G. Lane. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This include file contains common declarations for the forward and - * inverse DCT modules. These declarations are private to the DCT managers - * (jcdctmgr.c, jddctmgr.c) and the individual DCT algorithms. - * The individual DCT algorithms are kept in separate files to ease - * machine-dependent tuning (e.g., assembly coding). - */ - - -/* - * A forward DCT routine is given a pointer to an input sample array and - * a pointer to a work area of type DCTELEM[]; the DCT is to be performed - * in-place in that buffer. Type DCTELEM is int for 8-bit samples, INT32 - * for 12-bit samples. (NOTE: Floating-point DCT implementations use an - * array of type FAST_FLOAT, instead.) - * The input data is to be fetched from the sample array starting at a - * specified column. (Any row offset needed will be applied to the array - * pointer before it is passed to the FDCT code.) - * Note that the number of samples fetched by the FDCT routine is - * DCT_h_scaled_size * DCT_v_scaled_size. - * The DCT outputs are returned scaled up by a factor of 8; they therefore - * have a range of +-8K for 8-bit data, +-128K for 12-bit data. This - * convention improves accuracy in integer implementations and saves some - * work in floating-point ones. - * Quantization of the output coefficients is done by jcdctmgr.c. - */ - -#if BITS_IN_JSAMPLE == 8 -typedef int DCTELEM; /* 16 or 32 bits is fine */ -#else -typedef INT32 DCTELEM; /* must have 32 bits */ -#endif - -typedef JMETHOD(void, forward_DCT_method_ptr, (DCTELEM * data, - JSAMPARRAY sample_data, - JDIMENSION start_col)); -typedef JMETHOD(void, float_DCT_method_ptr, (FAST_FLOAT * data, - JSAMPARRAY sample_data, - JDIMENSION start_col)); - - -/* - * An inverse DCT routine is given a pointer to the input JBLOCK and a pointer - * to an output sample array. The routine must dequantize the input data as - * well as perform the IDCT; for dequantization, it uses the multiplier table - * pointed to by compptr->dct_table. The output data is to be placed into the - * sample array starting at a specified column. (Any row offset needed will - * be applied to the array pointer before it is passed to the IDCT code.) - * Note that the number of samples emitted by the IDCT routine is - * DCT_h_scaled_size * DCT_v_scaled_size. - */ - -/* typedef inverse_DCT_method_ptr is declared in jpegint.h */ - -/* - * Each IDCT routine has its own ideas about the best dct_table element type. - */ - -typedef MULTIPLIER ISLOW_MULT_TYPE; /* short or int, whichever is faster */ -#if BITS_IN_JSAMPLE == 8 -typedef MULTIPLIER IFAST_MULT_TYPE; /* 16 bits is OK, use short if faster */ -#define IFAST_SCALE_BITS 2 /* fractional bits in scale factors */ -#else -typedef INT32 IFAST_MULT_TYPE; /* need 32 bits for scaled quantizers */ -#define IFAST_SCALE_BITS 13 /* fractional bits in scale factors */ -#endif -typedef FAST_FLOAT FLOAT_MULT_TYPE; /* preferred floating type */ - - -/* - * Each IDCT routine is responsible for range-limiting its results and - * converting them to unsigned form (0..MAXJSAMPLE). The raw outputs could - * be quite far out of range if the input data is corrupt, so a bulletproof - * range-limiting step is required. We use a mask-and-table-lookup method - * to do the combined operations quickly. See the comments with - * prepare_range_limit_table (in jdmaster.c) for more info. - */ - -#define IDCT_range_limit(cinfo) ((cinfo)->sample_range_limit + CENTERJSAMPLE) - -#define RANGE_MASK (MAXJSAMPLE * 4 + 3) /* 2 bits wider than legal samples */ - - -/* Short forms of external names for systems with brain-damaged linkers. */ - -#ifdef NEED_SHORT_EXTERNAL_NAMES -#define jpeg_fdct_islow jFDislow -#define jpeg_fdct_ifast jFDifast -#define jpeg_fdct_float jFDfloat -#define jpeg_fdct_7x7 jFD7x7 -#define jpeg_fdct_6x6 jFD6x6 -#define jpeg_fdct_5x5 jFD5x5 -#define jpeg_fdct_4x4 jFD4x4 -#define jpeg_fdct_3x3 jFD3x3 -#define jpeg_fdct_2x2 jFD2x2 -#define jpeg_fdct_1x1 jFD1x1 -#define jpeg_fdct_9x9 jFD9x9 -#define jpeg_fdct_10x10 jFD10x10 -#define jpeg_fdct_11x11 jFD11x11 -#define jpeg_fdct_12x12 jFD12x12 -#define jpeg_fdct_13x13 jFD13x13 -#define jpeg_fdct_14x14 jFD14x14 -#define jpeg_fdct_15x15 jFD15x15 -#define jpeg_fdct_16x16 jFD16x16 -#define jpeg_fdct_16x8 jFD16x8 -#define jpeg_fdct_14x7 jFD14x7 -#define jpeg_fdct_12x6 jFD12x6 -#define jpeg_fdct_10x5 jFD10x5 -#define jpeg_fdct_8x4 jFD8x4 -#define jpeg_fdct_6x3 jFD6x3 -#define jpeg_fdct_4x2 jFD4x2 -#define jpeg_fdct_2x1 jFD2x1 -#define jpeg_fdct_8x16 jFD8x16 -#define jpeg_fdct_7x14 jFD7x14 -#define jpeg_fdct_6x12 jFD6x12 -#define jpeg_fdct_5x10 jFD5x10 -#define jpeg_fdct_4x8 jFD4x8 -#define jpeg_fdct_3x6 jFD3x6 -#define jpeg_fdct_2x4 jFD2x4 -#define jpeg_fdct_1x2 jFD1x2 -#define jpeg_idct_islow jRDislow -#define jpeg_idct_ifast jRDifast -#define jpeg_idct_float jRDfloat -#define jpeg_idct_7x7 jRD7x7 -#define jpeg_idct_6x6 jRD6x6 -#define jpeg_idct_5x5 jRD5x5 -#define jpeg_idct_4x4 jRD4x4 -#define jpeg_idct_3x3 jRD3x3 -#define jpeg_idct_2x2 jRD2x2 -#define jpeg_idct_1x1 jRD1x1 -#define jpeg_idct_9x9 jRD9x9 -#define jpeg_idct_10x10 jRD10x10 -#define jpeg_idct_11x11 jRD11x11 -#define jpeg_idct_12x12 jRD12x12 -#define jpeg_idct_13x13 jRD13x13 -#define jpeg_idct_14x14 jRD14x14 -#define jpeg_idct_15x15 jRD15x15 -#define jpeg_idct_16x16 jRD16x16 -#define jpeg_idct_16x8 jRD16x8 -#define jpeg_idct_14x7 jRD14x7 -#define jpeg_idct_12x6 jRD12x6 -#define jpeg_idct_10x5 jRD10x5 -#define jpeg_idct_8x4 jRD8x4 -#define jpeg_idct_6x3 jRD6x3 -#define jpeg_idct_4x2 jRD4x2 -#define jpeg_idct_2x1 jRD2x1 -#define jpeg_idct_8x16 jRD8x16 -#define jpeg_idct_7x14 jRD7x14 -#define jpeg_idct_6x12 jRD6x12 -#define jpeg_idct_5x10 jRD5x10 -#define jpeg_idct_4x8 jRD4x8 -#define jpeg_idct_3x6 jRD3x8 -#define jpeg_idct_2x4 jRD2x4 -#define jpeg_idct_1x2 jRD1x2 -#endif /* NEED_SHORT_EXTERNAL_NAMES */ - -/* Extern declarations for the forward and inverse DCT routines. */ - -EXTERN(void) jpeg_fdct_islow - JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col)); -EXTERN(void) jpeg_fdct_ifast - JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col)); -EXTERN(void) jpeg_fdct_float - JPP((FAST_FLOAT * data, JSAMPARRAY sample_data, JDIMENSION start_col)); -EXTERN(void) jpeg_fdct_7x7 - JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col)); -EXTERN(void) jpeg_fdct_6x6 - JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col)); -EXTERN(void) jpeg_fdct_5x5 - JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col)); -EXTERN(void) jpeg_fdct_4x4 - JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col)); -EXTERN(void) jpeg_fdct_3x3 - JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col)); -EXTERN(void) jpeg_fdct_2x2 - JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col)); -EXTERN(void) jpeg_fdct_1x1 - JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col)); -EXTERN(void) jpeg_fdct_9x9 - JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col)); -EXTERN(void) jpeg_fdct_10x10 - JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col)); -EXTERN(void) jpeg_fdct_11x11 - JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col)); -EXTERN(void) jpeg_fdct_12x12 - JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col)); -EXTERN(void) jpeg_fdct_13x13 - JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col)); -EXTERN(void) jpeg_fdct_14x14 - JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col)); -EXTERN(void) jpeg_fdct_15x15 - JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col)); -EXTERN(void) jpeg_fdct_16x16 - JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col)); -EXTERN(void) jpeg_fdct_16x8 - JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col)); -EXTERN(void) jpeg_fdct_14x7 - JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col)); -EXTERN(void) jpeg_fdct_12x6 - JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col)); -EXTERN(void) jpeg_fdct_10x5 - JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col)); -EXTERN(void) jpeg_fdct_8x4 - JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col)); -EXTERN(void) jpeg_fdct_6x3 - JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col)); -EXTERN(void) jpeg_fdct_4x2 - JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col)); -EXTERN(void) jpeg_fdct_2x1 - JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col)); -EXTERN(void) jpeg_fdct_8x16 - JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col)); -EXTERN(void) jpeg_fdct_7x14 - JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col)); -EXTERN(void) jpeg_fdct_6x12 - JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col)); -EXTERN(void) jpeg_fdct_5x10 - JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col)); -EXTERN(void) jpeg_fdct_4x8 - JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col)); -EXTERN(void) jpeg_fdct_3x6 - JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col)); -EXTERN(void) jpeg_fdct_2x4 - JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col)); -EXTERN(void) jpeg_fdct_1x2 - JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col)); - -EXTERN(void) jpeg_idct_islow - JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr, - JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col)); -EXTERN(void) jpeg_idct_ifast - JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr, - JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col)); -EXTERN(void) jpeg_idct_float - JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr, - JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col)); -EXTERN(void) jpeg_idct_7x7 - JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr, - JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col)); -EXTERN(void) jpeg_idct_6x6 - JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr, - JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col)); -EXTERN(void) jpeg_idct_5x5 - JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr, - JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col)); -EXTERN(void) jpeg_idct_4x4 - JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr, - JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col)); -EXTERN(void) jpeg_idct_3x3 - JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr, - JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col)); -EXTERN(void) jpeg_idct_2x2 - JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr, - JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col)); -EXTERN(void) jpeg_idct_1x1 - JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr, - JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col)); -EXTERN(void) jpeg_idct_9x9 - JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr, - JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col)); -EXTERN(void) jpeg_idct_10x10 - JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr, - JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col)); -EXTERN(void) jpeg_idct_11x11 - JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr, - JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col)); -EXTERN(void) jpeg_idct_12x12 - JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr, - JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col)); -EXTERN(void) jpeg_idct_13x13 - JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr, - JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col)); -EXTERN(void) jpeg_idct_14x14 - JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr, - JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col)); -EXTERN(void) jpeg_idct_15x15 - JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr, - JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col)); -EXTERN(void) jpeg_idct_16x16 - JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr, - JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col)); -EXTERN(void) jpeg_idct_16x8 - JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr, - JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col)); -EXTERN(void) jpeg_idct_14x7 - JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr, - JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col)); -EXTERN(void) jpeg_idct_12x6 - JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr, - JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col)); -EXTERN(void) jpeg_idct_10x5 - JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr, - JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col)); -EXTERN(void) jpeg_idct_8x4 - JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr, - JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col)); -EXTERN(void) jpeg_idct_6x3 - JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr, - JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col)); -EXTERN(void) jpeg_idct_4x2 - JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr, - JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col)); -EXTERN(void) jpeg_idct_2x1 - JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr, - JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col)); -EXTERN(void) jpeg_idct_8x16 - JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr, - JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col)); -EXTERN(void) jpeg_idct_7x14 - JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr, - JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col)); -EXTERN(void) jpeg_idct_6x12 - JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr, - JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col)); -EXTERN(void) jpeg_idct_5x10 - JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr, - JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col)); -EXTERN(void) jpeg_idct_4x8 - JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr, - JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col)); -EXTERN(void) jpeg_idct_3x6 - JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr, - JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col)); -EXTERN(void) jpeg_idct_2x4 - JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr, - JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col)); -EXTERN(void) jpeg_idct_1x2 - JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr, - JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col)); - - -/* - * Macros for handling fixed-point arithmetic; these are used by many - * but not all of the DCT/IDCT modules. - * - * All values are expected to be of type INT32. - * Fractional constants are scaled left by CONST_BITS bits. - * CONST_BITS is defined within each module using these macros, - * and may differ from one module to the next. - */ - -#define ONE ((INT32) 1) -#define CONST_SCALE (ONE << CONST_BITS) - -/* Convert a positive real constant to an integer scaled by CONST_SCALE. - * Caution: some C compilers fail to reduce "FIX(constant)" at compile time, - * thus causing a lot of useless floating-point operations at run time. - */ - -#define FIX(x) ((INT32) ((x) * CONST_SCALE + 0.5)) - -/* Descale and correctly round an INT32 value that's scaled by N bits. - * We assume RIGHT_SHIFT rounds towards minus infinity, so adding - * the fudge factor is correct for either sign of X. - */ - -#define DESCALE(x,n) RIGHT_SHIFT((x) + (ONE << ((n)-1)), n) - -/* Multiply an INT32 variable by an INT32 constant to yield an INT32 result. - * This macro is used only when the two inputs will actually be no more than - * 16 bits wide, so that a 16x16->32 bit multiply can be used instead of a - * full 32x32 multiply. This provides a useful speedup on many machines. - * Unfortunately there is no way to specify a 16x16->32 multiply portably - * in C, but some C compilers will do the right thing if you provide the - * correct combination of casts. - */ - -#ifdef SHORTxSHORT_32 /* may work if 'int' is 32 bits */ -#define MULTIPLY16C16(var,const) (((INT16) (var)) * ((INT16) (const))) -#endif -#ifdef SHORTxLCONST_32 /* known to work with Microsoft C 6.0 */ -#define MULTIPLY16C16(var,const) (((INT16) (var)) * ((INT32) (const))) -#endif - -#ifndef MULTIPLY16C16 /* default definition */ -#define MULTIPLY16C16(var,const) ((var) * (const)) -#endif - -/* Same except both inputs are variables. */ - -#ifdef SHORTxSHORT_32 /* may work if 'int' is 32 bits */ -#define MULTIPLY16V16(var1,var2) (((INT16) (var1)) * ((INT16) (var2))) -#endif - -#ifndef MULTIPLY16V16 /* default definition */ -#define MULTIPLY16V16(var1,var2) ((var1) * (var2)) -#endif diff --git a/jpg/jddctmgr.c b/jpg/jddctmgr.c deleted file mode 100644 index 0ded9d5..0000000 --- a/jpg/jddctmgr.c +++ /dev/null @@ -1,384 +0,0 @@ -/* - * jddctmgr.c - * - * Copyright (C) 1994-1996, Thomas G. Lane. - * Modified 2002-2010 by Guido Vollbeding. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file contains the inverse-DCT management logic. - * This code selects a particular IDCT implementation to be used, - * and it performs related housekeeping chores. No code in this file - * is executed per IDCT step, only during output pass setup. - * - * Note that the IDCT routines are responsible for performing coefficient - * dequantization as well as the IDCT proper. This module sets up the - * dequantization multiplier table needed by the IDCT routine. - */ - -#define JPEG_INTERNALS -#include "jinclude.h" -#include "jpeglib.h" -#include "jdct.h" /* Private declarations for DCT subsystem */ - - -/* - * The decompressor input side (jdinput.c) saves away the appropriate - * quantization table for each component at the start of the first scan - * involving that component. (This is necessary in order to correctly - * decode files that reuse Q-table slots.) - * When we are ready to make an output pass, the saved Q-table is converted - * to a multiplier table that will actually be used by the IDCT routine. - * The multiplier table contents are IDCT-method-dependent. To support - * application changes in IDCT method between scans, we can remake the - * multiplier tables if necessary. - * In buffered-image mode, the first output pass may occur before any data - * has been seen for some components, and thus before their Q-tables have - * been saved away. To handle this case, multiplier tables are preset - * to zeroes; the result of the IDCT will be a neutral gray level. - */ - - -/* Private subobject for this module */ - -typedef struct { - struct jpeg_inverse_dct pub; /* public fields */ - - /* This array contains the IDCT method code that each multiplier table - * is currently set up for, or -1 if it's not yet set up. - * The actual multiplier tables are pointed to by dct_table in the - * per-component comp_info structures. - */ - int cur_method[MAX_COMPONENTS]; -} my_idct_controller; - -typedef my_idct_controller * my_idct_ptr; - - -/* Allocated multiplier tables: big enough for any supported variant */ - -typedef union { - ISLOW_MULT_TYPE islow_array[DCTSIZE2]; -#ifdef DCT_IFAST_SUPPORTED - IFAST_MULT_TYPE ifast_array[DCTSIZE2]; -#endif -#ifdef DCT_FLOAT_SUPPORTED - FLOAT_MULT_TYPE float_array[DCTSIZE2]; -#endif -} multiplier_table; - - -/* The current scaled-IDCT routines require ISLOW-style multiplier tables, - * so be sure to compile that code if either ISLOW or SCALING is requested. - */ -#ifdef DCT_ISLOW_SUPPORTED -#define PROVIDE_ISLOW_TABLES -#else -#ifdef IDCT_SCALING_SUPPORTED -#define PROVIDE_ISLOW_TABLES -#endif -#endif - - -/* - * Prepare for an output pass. - * Here we select the proper IDCT routine for each component and build - * a matching multiplier table. - */ - -METHODDEF(void) -start_pass (j_decompress_ptr cinfo) -{ - my_idct_ptr idct = (my_idct_ptr) cinfo->idct; - int ci, i; - jpeg_component_info *compptr; - int method = 0; - inverse_DCT_method_ptr method_ptr = NULL; - JQUANT_TBL * qtbl; - - for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components; - ci++, compptr++) { - /* Select the proper IDCT routine for this component's scaling */ - switch ((compptr->DCT_h_scaled_size << 8) + compptr->DCT_v_scaled_size) { -#ifdef IDCT_SCALING_SUPPORTED - case ((1 << 8) + 1): - method_ptr = jpeg_idct_1x1; - method = JDCT_ISLOW; /* jidctint uses islow-style table */ - break; - case ((2 << 8) + 2): - method_ptr = jpeg_idct_2x2; - method = JDCT_ISLOW; /* jidctint uses islow-style table */ - break; - case ((3 << 8) + 3): - method_ptr = jpeg_idct_3x3; - method = JDCT_ISLOW; /* jidctint uses islow-style table */ - break; - case ((4 << 8) + 4): - method_ptr = jpeg_idct_4x4; - method = JDCT_ISLOW; /* jidctint uses islow-style table */ - break; - case ((5 << 8) + 5): - method_ptr = jpeg_idct_5x5; - method = JDCT_ISLOW; /* jidctint uses islow-style table */ - break; - case ((6 << 8) + 6): - method_ptr = jpeg_idct_6x6; - method = JDCT_ISLOW; /* jidctint uses islow-style table */ - break; - case ((7 << 8) + 7): - method_ptr = jpeg_idct_7x7; - method = JDCT_ISLOW; /* jidctint uses islow-style table */ - break; - case ((9 << 8) + 9): - method_ptr = jpeg_idct_9x9; - method = JDCT_ISLOW; /* jidctint uses islow-style table */ - break; - case ((10 << 8) + 10): - method_ptr = jpeg_idct_10x10; - method = JDCT_ISLOW; /* jidctint uses islow-style table */ - break; - case ((11 << 8) + 11): - method_ptr = jpeg_idct_11x11; - method = JDCT_ISLOW; /* jidctint uses islow-style table */ - break; - case ((12 << 8) + 12): - method_ptr = jpeg_idct_12x12; - method = JDCT_ISLOW; /* jidctint uses islow-style table */ - break; - case ((13 << 8) + 13): - method_ptr = jpeg_idct_13x13; - method = JDCT_ISLOW; /* jidctint uses islow-style table */ - break; - case ((14 << 8) + 14): - method_ptr = jpeg_idct_14x14; - method = JDCT_ISLOW; /* jidctint uses islow-style table */ - break; - case ((15 << 8) + 15): - method_ptr = jpeg_idct_15x15; - method = JDCT_ISLOW; /* jidctint uses islow-style table */ - break; - case ((16 << 8) + 16): - method_ptr = jpeg_idct_16x16; - method = JDCT_ISLOW; /* jidctint uses islow-style table */ - break; - case ((16 << 8) + 8): - method_ptr = jpeg_idct_16x8; - method = JDCT_ISLOW; /* jidctint uses islow-style table */ - break; - case ((14 << 8) + 7): - method_ptr = jpeg_idct_14x7; - method = JDCT_ISLOW; /* jidctint uses islow-style table */ - break; - case ((12 << 8) + 6): - method_ptr = jpeg_idct_12x6; - method = JDCT_ISLOW; /* jidctint uses islow-style table */ - break; - case ((10 << 8) + 5): - method_ptr = jpeg_idct_10x5; - method = JDCT_ISLOW; /* jidctint uses islow-style table */ - break; - case ((8 << 8) + 4): - method_ptr = jpeg_idct_8x4; - method = JDCT_ISLOW; /* jidctint uses islow-style table */ - break; - case ((6 << 8) + 3): - method_ptr = jpeg_idct_6x3; - method = JDCT_ISLOW; /* jidctint uses islow-style table */ - break; - case ((4 << 8) + 2): - method_ptr = jpeg_idct_4x2; - method = JDCT_ISLOW; /* jidctint uses islow-style table */ - break; - case ((2 << 8) + 1): - method_ptr = jpeg_idct_2x1; - method = JDCT_ISLOW; /* jidctint uses islow-style table */ - break; - case ((8 << 8) + 16): - method_ptr = jpeg_idct_8x16; - method = JDCT_ISLOW; /* jidctint uses islow-style table */ - break; - case ((7 << 8) + 14): - method_ptr = jpeg_idct_7x14; - method = JDCT_ISLOW; /* jidctint uses islow-style table */ - break; - case ((6 << 8) + 12): - method_ptr = jpeg_idct_6x12; - method = JDCT_ISLOW; /* jidctint uses islow-style table */ - break; - case ((5 << 8) + 10): - method_ptr = jpeg_idct_5x10; - method = JDCT_ISLOW; /* jidctint uses islow-style table */ - break; - case ((4 << 8) + 8): - method_ptr = jpeg_idct_4x8; - method = JDCT_ISLOW; /* jidctint uses islow-style table */ - break; - case ((3 << 8) + 6): - method_ptr = jpeg_idct_3x6; - method = JDCT_ISLOW; /* jidctint uses islow-style table */ - break; - case ((2 << 8) + 4): - method_ptr = jpeg_idct_2x4; - method = JDCT_ISLOW; /* jidctint uses islow-style table */ - break; - case ((1 << 8) + 2): - method_ptr = jpeg_idct_1x2; - method = JDCT_ISLOW; /* jidctint uses islow-style table */ - break; -#endif - case ((DCTSIZE << 8) + DCTSIZE): - switch (cinfo->dct_method) { -#ifdef DCT_ISLOW_SUPPORTED - case JDCT_ISLOW: - method_ptr = jpeg_idct_islow; - method = JDCT_ISLOW; - break; -#endif -#ifdef DCT_IFAST_SUPPORTED - case JDCT_IFAST: - method_ptr = jpeg_idct_ifast; - method = JDCT_IFAST; - break; -#endif -#ifdef DCT_FLOAT_SUPPORTED - case JDCT_FLOAT: - method_ptr = jpeg_idct_float; - method = JDCT_FLOAT; - break; -#endif - default: - ERREXIT(cinfo, JERR_NOT_COMPILED); - break; - } - break; - default: - ERREXIT2(cinfo, JERR_BAD_DCTSIZE, - compptr->DCT_h_scaled_size, compptr->DCT_v_scaled_size); - break; - } - idct->pub.inverse_DCT[ci] = method_ptr; - /* Create multiplier table from quant table. - * However, we can skip this if the component is uninteresting - * or if we already built the table. Also, if no quant table - * has yet been saved for the component, we leave the - * multiplier table all-zero; we'll be reading zeroes from the - * coefficient controller's buffer anyway. - */ - if (! compptr->component_needed || idct->cur_method[ci] == method) - continue; - qtbl = compptr->quant_table; - if (qtbl == NULL) /* happens if no data yet for component */ - continue; - idct->cur_method[ci] = method; - switch (method) { -#ifdef PROVIDE_ISLOW_TABLES - case JDCT_ISLOW: - { - /* For LL&M IDCT method, multipliers are equal to raw quantization - * coefficients, but are stored as ints to ensure access efficiency. - */ - ISLOW_MULT_TYPE * ismtbl = (ISLOW_MULT_TYPE *) compptr->dct_table; - for (i = 0; i < DCTSIZE2; i++) { - ismtbl[i] = (ISLOW_MULT_TYPE) qtbl->quantval[i]; - } - } - break; -#endif -#ifdef DCT_IFAST_SUPPORTED - case JDCT_IFAST: - { - /* For AA&N IDCT method, multipliers are equal to quantization - * coefficients scaled by scalefactor[row]*scalefactor[col], where - * scalefactor[0] = 1 - * scalefactor[k] = cos(k*PI/16) * sqrt(2) for k=1..7 - * For integer operation, the multiplier table is to be scaled by - * IFAST_SCALE_BITS. - */ - IFAST_MULT_TYPE * ifmtbl = (IFAST_MULT_TYPE *) compptr->dct_table; -#define CONST_BITS 14 - static const INT16 aanscales[DCTSIZE2] = { - /* precomputed values scaled up by 14 bits */ - 16384, 22725, 21407, 19266, 16384, 12873, 8867, 4520, - 22725, 31521, 29692, 26722, 22725, 17855, 12299, 6270, - 21407, 29692, 27969, 25172, 21407, 16819, 11585, 5906, - 19266, 26722, 25172, 22654, 19266, 15137, 10426, 5315, - 16384, 22725, 21407, 19266, 16384, 12873, 8867, 4520, - 12873, 17855, 16819, 15137, 12873, 10114, 6967, 3552, - 8867, 12299, 11585, 10426, 8867, 6967, 4799, 2446, - 4520, 6270, 5906, 5315, 4520, 3552, 2446, 1247 - }; - SHIFT_TEMPS - - for (i = 0; i < DCTSIZE2; i++) { - ifmtbl[i] = (IFAST_MULT_TYPE) - DESCALE(MULTIPLY16V16((INT32) qtbl->quantval[i], - (INT32) aanscales[i]), - CONST_BITS-IFAST_SCALE_BITS); - } - } - break; -#endif -#ifdef DCT_FLOAT_SUPPORTED - case JDCT_FLOAT: - { - /* For float AA&N IDCT method, multipliers are equal to quantization - * coefficients scaled by scalefactor[row]*scalefactor[col], where - * scalefactor[0] = 1 - * scalefactor[k] = cos(k*PI/16) * sqrt(2) for k=1..7 - * We apply a further scale factor of 1/8. - */ - FLOAT_MULT_TYPE * fmtbl = (FLOAT_MULT_TYPE *) compptr->dct_table; - int row, col; - static const double aanscalefactor[DCTSIZE] = { - 1.0, 1.387039845, 1.306562965, 1.175875602, - 1.0, 0.785694958, 0.541196100, 0.275899379 - }; - - i = 0; - for (row = 0; row < DCTSIZE; row++) { - for (col = 0; col < DCTSIZE; col++) { - fmtbl[i] = (FLOAT_MULT_TYPE) - ((double) qtbl->quantval[i] * - aanscalefactor[row] * aanscalefactor[col] * 0.125); - i++; - } - } - } - break; -#endif - default: - ERREXIT(cinfo, JERR_NOT_COMPILED); - break; - } - } -} - - -/* - * Initialize IDCT manager. - */ - -GLOBAL(void) -jinit_inverse_dct (j_decompress_ptr cinfo) -{ - my_idct_ptr idct; - int ci; - jpeg_component_info *compptr; - - idct = (my_idct_ptr) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - SIZEOF(my_idct_controller)); - cinfo->idct = (struct jpeg_inverse_dct *) idct; - idct->pub.start_pass = start_pass; - - for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components; - ci++, compptr++) { - /* Allocate and pre-zero a multiplier table for each component */ - compptr->dct_table = - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - SIZEOF(multiplier_table)); - MEMZERO(compptr->dct_table, SIZEOF(multiplier_table)); - /* Mark multiplier table not yet set up for any method */ - idct->cur_method[ci] = -1; - } -} diff --git a/jpg/jdhuff.c b/jpg/jdhuff.c deleted file mode 100644 index 06f92fe..0000000 --- a/jpg/jdhuff.c +++ /dev/null @@ -1,1541 +0,0 @@ -/* - * jdhuff.c - * - * Copyright (C) 1991-1997, Thomas G. Lane. - * Modified 2006-2009 by Guido Vollbeding. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file contains Huffman entropy decoding routines. - * Both sequential and progressive modes are supported in this single module. - * - * Much of the complexity here has to do with supporting input suspension. - * If the data source module demands suspension, we want to be able to back - * up to the start of the current MCU. To do this, we copy state variables - * into local working storage, and update them back to the permanent - * storage only upon successful completion of an MCU. - */ - -#define JPEG_INTERNALS -#include "jinclude.h" -#include "jpeglib.h" - - -/* Derived data constructed for each Huffman table */ - -#define HUFF_LOOKAHEAD 8 /* # of bits of lookahead */ - -typedef struct { - /* Basic tables: (element [0] of each array is unused) */ - INT32 maxcode[18]; /* largest code of length k (-1 if none) */ - /* (maxcode[17] is a sentinel to ensure jpeg_huff_decode terminates) */ - INT32 valoffset[17]; /* huffval[] offset for codes of length k */ - /* valoffset[k] = huffval[] index of 1st symbol of code length k, less - * the smallest code of length k; so given a code of length k, the - * corresponding symbol is huffval[code + valoffset[k]] - */ - - /* Link to public Huffman table (needed only in jpeg_huff_decode) */ - JHUFF_TBL *pub; - - /* Lookahead tables: indexed by the next HUFF_LOOKAHEAD bits of - * the input data stream. If the next Huffman code is no more - * than HUFF_LOOKAHEAD bits long, we can obtain its length and - * the corresponding symbol directly from these tables. - */ - int look_nbits[1< 32 bits on your machine, and shifting/masking longs is - * reasonably fast, making bit_buf_type be long and setting BIT_BUF_SIZE - * appropriately should be a win. Unfortunately we can't define the size - * with something like #define BIT_BUF_SIZE (sizeof(bit_buf_type)*8) - * because not all machines measure sizeof in 8-bit bytes. - */ - -typedef struct { /* Bitreading state saved across MCUs */ - bit_buf_type get_buffer; /* current bit-extraction buffer */ - int bits_left; /* # of unused bits in it */ -} bitread_perm_state; - -typedef struct { /* Bitreading working state within an MCU */ - /* Current data source location */ - /* We need a copy, rather than munging the original, in case of suspension */ - const JOCTET * next_input_byte; /* => next byte to read from source */ - size_t bytes_in_buffer; /* # of bytes remaining in source buffer */ - /* Bit input buffer --- note these values are kept in register variables, - * not in this struct, inside the inner loops. - */ - bit_buf_type get_buffer; /* current bit-extraction buffer */ - int bits_left; /* # of unused bits in it */ - /* Pointer needed by jpeg_fill_bit_buffer. */ - j_decompress_ptr cinfo; /* back link to decompress master record */ -} bitread_working_state; - -/* Macros to declare and load/save bitread local variables. */ -#define BITREAD_STATE_VARS \ - register bit_buf_type get_buffer; \ - register int bits_left; \ - bitread_working_state br_state - -#define BITREAD_LOAD_STATE(cinfop,permstate) \ - br_state.cinfo = cinfop; \ - br_state.next_input_byte = cinfop->src->next_input_byte; \ - br_state.bytes_in_buffer = cinfop->src->bytes_in_buffer; \ - get_buffer = permstate.get_buffer; \ - bits_left = permstate.bits_left; - -#define BITREAD_SAVE_STATE(cinfop,permstate) \ - cinfop->src->next_input_byte = br_state.next_input_byte; \ - cinfop->src->bytes_in_buffer = br_state.bytes_in_buffer; \ - permstate.get_buffer = get_buffer; \ - permstate.bits_left = bits_left - -/* - * These macros provide the in-line portion of bit fetching. - * Use CHECK_BIT_BUFFER to ensure there are N bits in get_buffer - * before using GET_BITS, PEEK_BITS, or DROP_BITS. - * The variables get_buffer and bits_left are assumed to be locals, - * but the state struct might not be (jpeg_huff_decode needs this). - * CHECK_BIT_BUFFER(state,n,action); - * Ensure there are N bits in get_buffer; if suspend, take action. - * val = GET_BITS(n); - * Fetch next N bits. - * val = PEEK_BITS(n); - * Fetch next N bits without removing them from the buffer. - * DROP_BITS(n); - * Discard next N bits. - * The value N should be a simple variable, not an expression, because it - * is evaluated multiple times. - */ - -#define CHECK_BIT_BUFFER(state,nbits,action) \ - { if (bits_left < (nbits)) { \ - if (! jpeg_fill_bit_buffer(&(state),get_buffer,bits_left,nbits)) \ - { action; } \ - get_buffer = (state).get_buffer; bits_left = (state).bits_left; } } - -#define GET_BITS(nbits) \ - (((int) (get_buffer >> (bits_left -= (nbits)))) & BIT_MASK(nbits)) - -#define PEEK_BITS(nbits) \ - (((int) (get_buffer >> (bits_left - (nbits)))) & BIT_MASK(nbits)) - -#define DROP_BITS(nbits) \ - (bits_left -= (nbits)) - - -/* - * Code for extracting next Huffman-coded symbol from input bit stream. - * Again, this is time-critical and we make the main paths be macros. - * - * We use a lookahead table to process codes of up to HUFF_LOOKAHEAD bits - * without looping. Usually, more than 95% of the Huffman codes will be 8 - * or fewer bits long. The few overlength codes are handled with a loop, - * which need not be inline code. - * - * Notes about the HUFF_DECODE macro: - * 1. Near the end of the data segment, we may fail to get enough bits - * for a lookahead. In that case, we do it the hard way. - * 2. If the lookahead table contains no entry, the next code must be - * more than HUFF_LOOKAHEAD bits long. - * 3. jpeg_huff_decode returns -1 if forced to suspend. - */ - -#define HUFF_DECODE(result,state,htbl,failaction,slowlabel) \ -{ register int nb, look; \ - if (bits_left < HUFF_LOOKAHEAD) { \ - if (! jpeg_fill_bit_buffer(&state,get_buffer,bits_left, 0)) {failaction;} \ - get_buffer = state.get_buffer; bits_left = state.bits_left; \ - if (bits_left < HUFF_LOOKAHEAD) { \ - nb = 1; goto slowlabel; \ - } \ - } \ - look = PEEK_BITS(HUFF_LOOKAHEAD); \ - if ((nb = htbl->look_nbits[look]) != 0) { \ - DROP_BITS(nb); \ - result = htbl->look_sym[look]; \ - } else { \ - nb = HUFF_LOOKAHEAD+1; \ -slowlabel: \ - if ((result=jpeg_huff_decode(&state,get_buffer,bits_left,htbl,nb)) < 0) \ - { failaction; } \ - get_buffer = state.get_buffer; bits_left = state.bits_left; \ - } \ -} - - -/* - * Expanded entropy decoder object for Huffman decoding. - * - * The savable_state subrecord contains fields that change within an MCU, - * but must not be updated permanently until we complete the MCU. - */ - -typedef struct { - unsigned int EOBRUN; /* remaining EOBs in EOBRUN */ - int last_dc_val[MAX_COMPS_IN_SCAN]; /* last DC coef for each component */ -} savable_state; - -/* This macro is to work around compilers with missing or broken - * structure assignment. You'll need to fix this code if you have - * such a compiler and you change MAX_COMPS_IN_SCAN. - */ - -#ifndef NO_STRUCT_ASSIGN -#define ASSIGN_STATE(dest,src) ((dest) = (src)) -#else -#if MAX_COMPS_IN_SCAN == 4 -#define ASSIGN_STATE(dest,src) \ - ((dest).EOBRUN = (src).EOBRUN, \ - (dest).last_dc_val[0] = (src).last_dc_val[0], \ - (dest).last_dc_val[1] = (src).last_dc_val[1], \ - (dest).last_dc_val[2] = (src).last_dc_val[2], \ - (dest).last_dc_val[3] = (src).last_dc_val[3]) -#endif -#endif - - -typedef struct { - struct jpeg_entropy_decoder pub; /* public fields */ - - /* These fields are loaded into local variables at start of each MCU. - * In case of suspension, we exit WITHOUT updating them. - */ - bitread_perm_state bitstate; /* Bit buffer at start of MCU */ - savable_state saved; /* Other state at start of MCU */ - - /* These fields are NOT loaded into local working state. */ - boolean insufficient_data; /* set TRUE after emitting warning */ - unsigned int restarts_to_go; /* MCUs left in this restart interval */ - - /* Following two fields used only in progressive mode */ - - /* Pointers to derived tables (these workspaces have image lifespan) */ - d_derived_tbl * derived_tbls[NUM_HUFF_TBLS]; - - d_derived_tbl * ac_derived_tbl; /* active table during an AC scan */ - - /* Following fields used only in sequential mode */ - - /* Pointers to derived tables (these workspaces have image lifespan) */ - d_derived_tbl * dc_derived_tbls[NUM_HUFF_TBLS]; - d_derived_tbl * ac_derived_tbls[NUM_HUFF_TBLS]; - - /* Precalculated info set up by start_pass for use in decode_mcu: */ - - /* Pointers to derived tables to be used for each block within an MCU */ - d_derived_tbl * dc_cur_tbls[D_MAX_BLOCKS_IN_MCU]; - d_derived_tbl * ac_cur_tbls[D_MAX_BLOCKS_IN_MCU]; - /* Whether we care about the DC and AC coefficient values for each block */ - int coef_limit[D_MAX_BLOCKS_IN_MCU]; -} huff_entropy_decoder; - -typedef huff_entropy_decoder * huff_entropy_ptr; - - -static const int jpeg_zigzag_order[8][8] = { - { 0, 1, 5, 6, 14, 15, 27, 28 }, - { 2, 4, 7, 13, 16, 26, 29, 42 }, - { 3, 8, 12, 17, 25, 30, 41, 43 }, - { 9, 11, 18, 24, 31, 40, 44, 53 }, - { 10, 19, 23, 32, 39, 45, 52, 54 }, - { 20, 22, 33, 38, 46, 51, 55, 60 }, - { 21, 34, 37, 47, 50, 56, 59, 61 }, - { 35, 36, 48, 49, 57, 58, 62, 63 } -}; - -static const int jpeg_zigzag_order7[7][7] = { - { 0, 1, 5, 6, 14, 15, 27 }, - { 2, 4, 7, 13, 16, 26, 28 }, - { 3, 8, 12, 17, 25, 29, 38 }, - { 9, 11, 18, 24, 30, 37, 39 }, - { 10, 19, 23, 31, 36, 40, 45 }, - { 20, 22, 32, 35, 41, 44, 46 }, - { 21, 33, 34, 42, 43, 47, 48 } -}; - -static const int jpeg_zigzag_order6[6][6] = { - { 0, 1, 5, 6, 14, 15 }, - { 2, 4, 7, 13, 16, 25 }, - { 3, 8, 12, 17, 24, 26 }, - { 9, 11, 18, 23, 27, 32 }, - { 10, 19, 22, 28, 31, 33 }, - { 20, 21, 29, 30, 34, 35 } -}; - -static const int jpeg_zigzag_order5[5][5] = { - { 0, 1, 5, 6, 14 }, - { 2, 4, 7, 13, 15 }, - { 3, 8, 12, 16, 21 }, - { 9, 11, 17, 20, 22 }, - { 10, 18, 19, 23, 24 } -}; - -static const int jpeg_zigzag_order4[4][4] = { - { 0, 1, 5, 6 }, - { 2, 4, 7, 12 }, - { 3, 8, 11, 13 }, - { 9, 10, 14, 15 } -}; - -static const int jpeg_zigzag_order3[3][3] = { - { 0, 1, 5 }, - { 2, 4, 6 }, - { 3, 7, 8 } -}; - -static const int jpeg_zigzag_order2[2][2] = { - { 0, 1 }, - { 2, 3 } -}; - - -/* - * Compute the derived values for a Huffman table. - * This routine also performs some validation checks on the table. - */ - -LOCAL(void) -jpeg_make_d_derived_tbl (j_decompress_ptr cinfo, boolean isDC, int tblno, - d_derived_tbl ** pdtbl) -{ - JHUFF_TBL *htbl; - d_derived_tbl *dtbl; - int p, i, l, si, numsymbols; - int lookbits, ctr; - char huffsize[257]; - unsigned int huffcode[257]; - unsigned int code; - - /* Note that huffsize[] and huffcode[] are filled in code-length order, - * paralleling the order of the symbols themselves in htbl->huffval[]. - */ - - /* Find the input Huffman table */ - if (tblno < 0 || tblno >= NUM_HUFF_TBLS) - ERREXIT1(cinfo, JERR_NO_HUFF_TABLE, tblno); - htbl = - isDC ? cinfo->dc_huff_tbl_ptrs[tblno] : cinfo->ac_huff_tbl_ptrs[tblno]; - if (htbl == NULL) - ERREXIT1(cinfo, JERR_NO_HUFF_TABLE, tblno); - - /* Allocate a workspace if we haven't already done so. */ - if (*pdtbl == NULL) - *pdtbl = (d_derived_tbl *) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - SIZEOF(d_derived_tbl)); - dtbl = *pdtbl; - dtbl->pub = htbl; /* fill in back link */ - - /* Figure C.1: make table of Huffman code length for each symbol */ - - p = 0; - for (l = 1; l <= 16; l++) { - i = (int) htbl->bits[l]; - if (i < 0 || p + i > 256) /* protect against table overrun */ - ERREXIT(cinfo, JERR_BAD_HUFF_TABLE); - while (i--) - huffsize[p++] = (char) l; - } - huffsize[p] = 0; - numsymbols = p; - - /* Figure C.2: generate the codes themselves */ - /* We also validate that the counts represent a legal Huffman code tree. */ - - code = 0; - si = huffsize[0]; - p = 0; - while (huffsize[p]) { - while (((int) huffsize[p]) == si) { - huffcode[p++] = code; - code++; - } - /* code is now 1 more than the last code used for codelength si; but - * it must still fit in si bits, since no code is allowed to be all ones. - */ - if (((INT32) code) >= (((INT32) 1) << si)) - ERREXIT(cinfo, JERR_BAD_HUFF_TABLE); - code <<= 1; - si++; - } - - /* Figure F.15: generate decoding tables for bit-sequential decoding */ - - p = 0; - for (l = 1; l <= 16; l++) { - if (htbl->bits[l]) { - /* valoffset[l] = huffval[] index of 1st symbol of code length l, - * minus the minimum code of length l - */ - dtbl->valoffset[l] = (INT32) p - (INT32) huffcode[p]; - p += htbl->bits[l]; - dtbl->maxcode[l] = huffcode[p-1]; /* maximum code of length l */ - } else { - dtbl->maxcode[l] = -1; /* -1 if no codes of this length */ - } - } - dtbl->maxcode[17] = 0xFFFFFL; /* ensures jpeg_huff_decode terminates */ - - /* Compute lookahead tables to speed up decoding. - * First we set all the table entries to 0, indicating "too long"; - * then we iterate through the Huffman codes that are short enough and - * fill in all the entries that correspond to bit sequences starting - * with that code. - */ - - MEMZERO(dtbl->look_nbits, SIZEOF(dtbl->look_nbits)); - - p = 0; - for (l = 1; l <= HUFF_LOOKAHEAD; l++) { - for (i = 1; i <= (int) htbl->bits[l]; i++, p++) { - /* l = current code's length, p = its index in huffcode[] & huffval[]. */ - /* Generate left-justified code followed by all possible bit sequences */ - lookbits = huffcode[p] << (HUFF_LOOKAHEAD-l); - for (ctr = 1 << (HUFF_LOOKAHEAD-l); ctr > 0; ctr--) { - dtbl->look_nbits[lookbits] = l; - dtbl->look_sym[lookbits] = htbl->huffval[p]; - lookbits++; - } - } - } - - /* Validate symbols as being reasonable. - * For AC tables, we make no check, but accept all byte values 0..255. - * For DC tables, we require the symbols to be in range 0..15. - * (Tighter bounds could be applied depending on the data depth and mode, - * but this is sufficient to ensure safe decoding.) - */ - if (isDC) { - for (i = 0; i < numsymbols; i++) { - int sym = htbl->huffval[i]; - if (sym < 0 || sym > 15) - ERREXIT(cinfo, JERR_BAD_HUFF_TABLE); - } - } -} - - -/* - * Out-of-line code for bit fetching. - * Note: current values of get_buffer and bits_left are passed as parameters, - * but are returned in the corresponding fields of the state struct. - * - * On most machines MIN_GET_BITS should be 25 to allow the full 32-bit width - * of get_buffer to be used. (On machines with wider words, an even larger - * buffer could be used.) However, on some machines 32-bit shifts are - * quite slow and take time proportional to the number of places shifted. - * (This is true with most PC compilers, for instance.) In this case it may - * be a win to set MIN_GET_BITS to the minimum value of 15. This reduces the - * average shift distance at the cost of more calls to jpeg_fill_bit_buffer. - */ - -#ifdef SLOW_SHIFT_32 -#define MIN_GET_BITS 15 /* minimum allowable value */ -#else -#define MIN_GET_BITS (BIT_BUF_SIZE-7) -#endif - - -LOCAL(boolean) -jpeg_fill_bit_buffer (bitread_working_state * state, - register bit_buf_type get_buffer, register int bits_left, - int nbits) -/* Load up the bit buffer to a depth of at least nbits */ -{ - /* Copy heavily used state fields into locals (hopefully registers) */ - register const JOCTET * next_input_byte = state->next_input_byte; - register size_t bytes_in_buffer = state->bytes_in_buffer; - j_decompress_ptr cinfo = state->cinfo; - - /* Attempt to load at least MIN_GET_BITS bits into get_buffer. */ - /* (It is assumed that no request will be for more than that many bits.) */ - /* We fail to do so only if we hit a marker or are forced to suspend. */ - - if (cinfo->unread_marker == 0) { /* cannot advance past a marker */ - while (bits_left < MIN_GET_BITS) { - register int c; - - /* Attempt to read a byte */ - if (bytes_in_buffer == 0) { - if (! (*cinfo->src->fill_input_buffer) (cinfo)) - return FALSE; - next_input_byte = cinfo->src->next_input_byte; - bytes_in_buffer = cinfo->src->bytes_in_buffer; - } - bytes_in_buffer--; - c = GETJOCTET(*next_input_byte++); - - /* If it's 0xFF, check and discard stuffed zero byte */ - if (c == 0xFF) { - /* Loop here to discard any padding FF's on terminating marker, - * so that we can save a valid unread_marker value. NOTE: we will - * accept multiple FF's followed by a 0 as meaning a single FF data - * byte. This data pattern is not valid according to the standard. - */ - do { - if (bytes_in_buffer == 0) { - if (! (*cinfo->src->fill_input_buffer) (cinfo)) - return FALSE; - next_input_byte = cinfo->src->next_input_byte; - bytes_in_buffer = cinfo->src->bytes_in_buffer; - } - bytes_in_buffer--; - c = GETJOCTET(*next_input_byte++); - } while (c == 0xFF); - - if (c == 0) { - /* Found FF/00, which represents an FF data byte */ - c = 0xFF; - } else { - /* Oops, it's actually a marker indicating end of compressed data. - * Save the marker code for later use. - * Fine point: it might appear that we should save the marker into - * bitread working state, not straight into permanent state. But - * once we have hit a marker, we cannot need to suspend within the - * current MCU, because we will read no more bytes from the data - * source. So it is OK to update permanent state right away. - */ - cinfo->unread_marker = c; - /* See if we need to insert some fake zero bits. */ - goto no_more_bytes; - } - } - - /* OK, load c into get_buffer */ - get_buffer = (get_buffer << 8) | c; - bits_left += 8; - } /* end while */ - } else { - no_more_bytes: - /* We get here if we've read the marker that terminates the compressed - * data segment. There should be enough bits in the buffer register - * to satisfy the request; if so, no problem. - */ - if (nbits > bits_left) { - /* Uh-oh. Report corrupted data to user and stuff zeroes into - * the data stream, so that we can produce some kind of image. - * We use a nonvolatile flag to ensure that only one warning message - * appears per data segment. - */ - if (! ((huff_entropy_ptr) cinfo->entropy)->insufficient_data) { - WARNMS(cinfo, JWRN_HIT_MARKER); - ((huff_entropy_ptr) cinfo->entropy)->insufficient_data = TRUE; - } - /* Fill the buffer with zero bits */ - get_buffer <<= MIN_GET_BITS - bits_left; - bits_left = MIN_GET_BITS; - } - } - - /* Unload the local registers */ - state->next_input_byte = next_input_byte; - state->bytes_in_buffer = bytes_in_buffer; - state->get_buffer = get_buffer; - state->bits_left = bits_left; - - return TRUE; -} - - -/* - * Figure F.12: extend sign bit. - * On some machines, a shift and sub will be faster than a table lookup. - */ - -#ifdef AVOID_TABLES - -#define BIT_MASK(nbits) ((1<<(nbits))-1) -#define HUFF_EXTEND(x,s) ((x) < (1<<((s)-1)) ? (x) - ((1<<(s))-1) : (x)) - -#else - -#define BIT_MASK(nbits) bmask[nbits] -#define HUFF_EXTEND(x,s) ((x) <= bmask[(s) - 1] ? (x) - bmask[s] : (x)) - -static const int bmask[16] = /* bmask[n] is mask for n rightmost bits */ - { 0, 0x0001, 0x0003, 0x0007, 0x000F, 0x001F, 0x003F, 0x007F, 0x00FF, - 0x01FF, 0x03FF, 0x07FF, 0x0FFF, 0x1FFF, 0x3FFF, 0x7FFF }; - -#endif /* AVOID_TABLES */ - - -/* - * Out-of-line code for Huffman code decoding. - */ - -LOCAL(int) -jpeg_huff_decode (bitread_working_state * state, - register bit_buf_type get_buffer, register int bits_left, - d_derived_tbl * htbl, int min_bits) -{ - register int l = min_bits; - register INT32 code; - - /* HUFF_DECODE has determined that the code is at least min_bits */ - /* bits long, so fetch that many bits in one swoop. */ - - CHECK_BIT_BUFFER(*state, l, return -1); - code = GET_BITS(l); - - /* Collect the rest of the Huffman code one bit at a time. */ - /* This is per Figure F.16 in the JPEG spec. */ - - while (code > htbl->maxcode[l]) { - code <<= 1; - CHECK_BIT_BUFFER(*state, 1, return -1); - code |= GET_BITS(1); - l++; - } - - /* Unload the local registers */ - state->get_buffer = get_buffer; - state->bits_left = bits_left; - - /* With garbage input we may reach the sentinel value l = 17. */ - - if (l > 16) { - WARNMS(state->cinfo, JWRN_HUFF_BAD_CODE); - return 0; /* fake a zero as the safest result */ - } - - return htbl->pub->huffval[ (int) (code + htbl->valoffset[l]) ]; -} - - -/* - * Check for a restart marker & resynchronize decoder. - * Returns FALSE if must suspend. - */ - -LOCAL(boolean) -process_restart (j_decompress_ptr cinfo) -{ - huff_entropy_ptr entropy = (huff_entropy_ptr) cinfo->entropy; - int ci; - - /* Throw away any unused bits remaining in bit buffer; */ - /* include any full bytes in next_marker's count of discarded bytes */ - cinfo->marker->discarded_bytes += entropy->bitstate.bits_left / 8; - entropy->bitstate.bits_left = 0; - - /* Advance past the RSTn marker */ - if (! (*cinfo->marker->read_restart_marker) (cinfo)) - return FALSE; - - /* Re-initialize DC predictions to 0 */ - for (ci = 0; ci < cinfo->comps_in_scan; ci++) - entropy->saved.last_dc_val[ci] = 0; - /* Re-init EOB run count, too */ - entropy->saved.EOBRUN = 0; - - /* Reset restart counter */ - entropy->restarts_to_go = cinfo->restart_interval; - - /* Reset out-of-data flag, unless read_restart_marker left us smack up - * against a marker. In that case we will end up treating the next data - * segment as empty, and we can avoid producing bogus output pixels by - * leaving the flag set. - */ - if (cinfo->unread_marker == 0) - entropy->insufficient_data = FALSE; - - return TRUE; -} - - -/* - * Huffman MCU decoding. - * Each of these routines decodes and returns one MCU's worth of - * Huffman-compressed coefficients. - * The coefficients are reordered from zigzag order into natural array order, - * but are not dequantized. - * - * The i'th block of the MCU is stored into the block pointed to by - * MCU_data[i]. WE ASSUME THIS AREA IS INITIALLY ZEROED BY THE CALLER. - * (Wholesale zeroing is usually a little faster than retail...) - * - * We return FALSE if data source requested suspension. In that case no - * changes have been made to permanent state. (Exception: some output - * coefficients may already have been assigned. This is harmless for - * spectral selection, since we'll just re-assign them on the next call. - * Successive approximation AC refinement has to be more careful, however.) - */ - -/* - * MCU decoding for DC initial scan (either spectral selection, - * or first pass of successive approximation). - */ - -METHODDEF(boolean) -decode_mcu_DC_first (j_decompress_ptr cinfo, JBLOCKROW *MCU_data) -{ - huff_entropy_ptr entropy = (huff_entropy_ptr) cinfo->entropy; - int Al = cinfo->Al; - register int s, r; - int blkn, ci; - JBLOCKROW block; - BITREAD_STATE_VARS; - savable_state state; - d_derived_tbl * tbl; - jpeg_component_info * compptr; - - /* Process restart marker if needed; may have to suspend */ - if (cinfo->restart_interval) { - if (entropy->restarts_to_go == 0) - if (! process_restart(cinfo)) - return FALSE; - } - - /* If we've run out of data, just leave the MCU set to zeroes. - * This way, we return uniform gray for the remainder of the segment. - */ - if (! entropy->insufficient_data) { - - /* Load up working state */ - BITREAD_LOAD_STATE(cinfo,entropy->bitstate); - ASSIGN_STATE(state, entropy->saved); - - /* Outer loop handles each block in the MCU */ - - for (blkn = 0; blkn < cinfo->blocks_in_MCU; blkn++) { - block = MCU_data[blkn]; - ci = cinfo->MCU_membership[blkn]; - compptr = cinfo->cur_comp_info[ci]; - tbl = entropy->derived_tbls[compptr->dc_tbl_no]; - - /* Decode a single block's worth of coefficients */ - - /* Section F.2.2.1: decode the DC coefficient difference */ - HUFF_DECODE(s, br_state, tbl, return FALSE, label1); - if (s) { - CHECK_BIT_BUFFER(br_state, s, return FALSE); - r = GET_BITS(s); - s = HUFF_EXTEND(r, s); - } - - /* Convert DC difference to actual value, update last_dc_val */ - s += state.last_dc_val[ci]; - state.last_dc_val[ci] = s; - /* Scale and output the coefficient (assumes jpeg_natural_order[0]=0) */ - (*block)[0] = (JCOEF) (s << Al); - } - - /* Completed MCU, so update state */ - BITREAD_SAVE_STATE(cinfo,entropy->bitstate); - ASSIGN_STATE(entropy->saved, state); - } - - /* Account for restart interval (no-op if not using restarts) */ - entropy->restarts_to_go--; - - return TRUE; -} - - -/* - * MCU decoding for AC initial scan (either spectral selection, - * or first pass of successive approximation). - */ - -METHODDEF(boolean) -decode_mcu_AC_first (j_decompress_ptr cinfo, JBLOCKROW *MCU_data) -{ - huff_entropy_ptr entropy = (huff_entropy_ptr) cinfo->entropy; - register int s, k, r; - unsigned int EOBRUN; - int Se, Al; - const int * natural_order; - JBLOCKROW block; - BITREAD_STATE_VARS; - d_derived_tbl * tbl; - - /* Process restart marker if needed; may have to suspend */ - if (cinfo->restart_interval) { - if (entropy->restarts_to_go == 0) - if (! process_restart(cinfo)) - return FALSE; - } - - /* If we've run out of data, just leave the MCU set to zeroes. - * This way, we return uniform gray for the remainder of the segment. - */ - if (! entropy->insufficient_data) { - - Se = cinfo->Se; - Al = cinfo->Al; - natural_order = cinfo->natural_order; - - /* Load up working state. - * We can avoid loading/saving bitread state if in an EOB run. - */ - EOBRUN = entropy->saved.EOBRUN; /* only part of saved state we need */ - - /* There is always only one block per MCU */ - - if (EOBRUN > 0) /* if it's a band of zeroes... */ - EOBRUN--; /* ...process it now (we do nothing) */ - else { - BITREAD_LOAD_STATE(cinfo,entropy->bitstate); - block = MCU_data[0]; - tbl = entropy->ac_derived_tbl; - - for (k = cinfo->Ss; k <= Se; k++) { - HUFF_DECODE(s, br_state, tbl, return FALSE, label2); - r = s >> 4; - s &= 15; - if (s) { - k += r; - CHECK_BIT_BUFFER(br_state, s, return FALSE); - r = GET_BITS(s); - s = HUFF_EXTEND(r, s); - /* Scale and output coefficient in natural (dezigzagged) order */ - (*block)[natural_order[k]] = (JCOEF) (s << Al); - } else { - if (r == 15) { /* ZRL */ - k += 15; /* skip 15 zeroes in band */ - } else { /* EOBr, run length is 2^r + appended bits */ - EOBRUN = 1 << r; - if (r) { /* EOBr, r > 0 */ - CHECK_BIT_BUFFER(br_state, r, return FALSE); - r = GET_BITS(r); - EOBRUN += r; - } - EOBRUN--; /* this band is processed at this moment */ - break; /* force end-of-band */ - } - } - } - - BITREAD_SAVE_STATE(cinfo,entropy->bitstate); - } - - /* Completed MCU, so update state */ - entropy->saved.EOBRUN = EOBRUN; /* only part of saved state we need */ - } - - /* Account for restart interval (no-op if not using restarts) */ - entropy->restarts_to_go--; - - return TRUE; -} - - -/* - * MCU decoding for DC successive approximation refinement scan. - * Note: we assume such scans can be multi-component, although the spec - * is not very clear on the point. - */ - -METHODDEF(boolean) -decode_mcu_DC_refine (j_decompress_ptr cinfo, JBLOCKROW *MCU_data) -{ - huff_entropy_ptr entropy = (huff_entropy_ptr) cinfo->entropy; - int p1 = 1 << cinfo->Al; /* 1 in the bit position being coded */ - int blkn; - JBLOCKROW block; - BITREAD_STATE_VARS; - - /* Process restart marker if needed; may have to suspend */ - if (cinfo->restart_interval) { - if (entropy->restarts_to_go == 0) - if (! process_restart(cinfo)) - return FALSE; - } - - /* Not worth the cycles to check insufficient_data here, - * since we will not change the data anyway if we read zeroes. - */ - - /* Load up working state */ - BITREAD_LOAD_STATE(cinfo,entropy->bitstate); - - /* Outer loop handles each block in the MCU */ - - for (blkn = 0; blkn < cinfo->blocks_in_MCU; blkn++) { - block = MCU_data[blkn]; - - /* Encoded data is simply the next bit of the two's-complement DC value */ - CHECK_BIT_BUFFER(br_state, 1, return FALSE); - if (GET_BITS(1)) - (*block)[0] |= p1; - /* Note: since we use |=, repeating the assignment later is safe */ - } - - /* Completed MCU, so update state */ - BITREAD_SAVE_STATE(cinfo,entropy->bitstate); - - /* Account for restart interval (no-op if not using restarts) */ - entropy->restarts_to_go--; - - return TRUE; -} - - -/* - * MCU decoding for AC successive approximation refinement scan. - */ - -METHODDEF(boolean) -decode_mcu_AC_refine (j_decompress_ptr cinfo, JBLOCKROW *MCU_data) -{ - huff_entropy_ptr entropy = (huff_entropy_ptr) cinfo->entropy; - register int s, k, r; - unsigned int EOBRUN; - int Se, p1, m1; - const int * natural_order; - JBLOCKROW block; - JCOEFPTR thiscoef; - BITREAD_STATE_VARS; - d_derived_tbl * tbl; - int num_newnz; - int newnz_pos[DCTSIZE2]; - - /* Process restart marker if needed; may have to suspend */ - if (cinfo->restart_interval) { - if (entropy->restarts_to_go == 0) - if (! process_restart(cinfo)) - return FALSE; - } - - /* If we've run out of data, don't modify the MCU. - */ - if (! entropy->insufficient_data) { - - Se = cinfo->Se; - p1 = 1 << cinfo->Al; /* 1 in the bit position being coded */ - m1 = (-1) << cinfo->Al; /* -1 in the bit position being coded */ - natural_order = cinfo->natural_order; - - /* Load up working state */ - BITREAD_LOAD_STATE(cinfo,entropy->bitstate); - EOBRUN = entropy->saved.EOBRUN; /* only part of saved state we need */ - - /* There is always only one block per MCU */ - block = MCU_data[0]; - tbl = entropy->ac_derived_tbl; - - /* If we are forced to suspend, we must undo the assignments to any newly - * nonzero coefficients in the block, because otherwise we'd get confused - * next time about which coefficients were already nonzero. - * But we need not undo addition of bits to already-nonzero coefficients; - * instead, we can test the current bit to see if we already did it. - */ - num_newnz = 0; - - /* initialize coefficient loop counter to start of band */ - k = cinfo->Ss; - - if (EOBRUN == 0) { - for (; k <= Se; k++) { - HUFF_DECODE(s, br_state, tbl, goto undoit, label3); - r = s >> 4; - s &= 15; - if (s) { - if (s != 1) /* size of new coef should always be 1 */ - WARNMS(cinfo, JWRN_HUFF_BAD_CODE); - CHECK_BIT_BUFFER(br_state, 1, goto undoit); - if (GET_BITS(1)) - s = p1; /* newly nonzero coef is positive */ - else - s = m1; /* newly nonzero coef is negative */ - } else { - if (r != 15) { - EOBRUN = 1 << r; /* EOBr, run length is 2^r + appended bits */ - if (r) { - CHECK_BIT_BUFFER(br_state, r, goto undoit); - r = GET_BITS(r); - EOBRUN += r; - } - break; /* rest of block is handled by EOB logic */ - } - /* note s = 0 for processing ZRL */ - } - /* Advance over already-nonzero coefs and r still-zero coefs, - * appending correction bits to the nonzeroes. A correction bit is 1 - * if the absolute value of the coefficient must be increased. - */ - do { - thiscoef = *block + natural_order[k]; - if (*thiscoef != 0) { - CHECK_BIT_BUFFER(br_state, 1, goto undoit); - if (GET_BITS(1)) { - if ((*thiscoef & p1) == 0) { /* do nothing if already set it */ - if (*thiscoef >= 0) - *thiscoef += p1; - else - *thiscoef += m1; - } - } - } else { - if (--r < 0) - break; /* reached target zero coefficient */ - } - k++; - } while (k <= Se); - if (s) { - int pos = natural_order[k]; - /* Output newly nonzero coefficient */ - (*block)[pos] = (JCOEF) s; - /* Remember its position in case we have to suspend */ - newnz_pos[num_newnz++] = pos; - } - } - } - - if (EOBRUN > 0) { - /* Scan any remaining coefficient positions after the end-of-band - * (the last newly nonzero coefficient, if any). Append a correction - * bit to each already-nonzero coefficient. A correction bit is 1 - * if the absolute value of the coefficient must be increased. - */ - for (; k <= Se; k++) { - thiscoef = *block + natural_order[k]; - if (*thiscoef != 0) { - CHECK_BIT_BUFFER(br_state, 1, goto undoit); - if (GET_BITS(1)) { - if ((*thiscoef & p1) == 0) { /* do nothing if already changed it */ - if (*thiscoef >= 0) - *thiscoef += p1; - else - *thiscoef += m1; - } - } - } - } - /* Count one block completed in EOB run */ - EOBRUN--; - } - - /* Completed MCU, so update state */ - BITREAD_SAVE_STATE(cinfo,entropy->bitstate); - entropy->saved.EOBRUN = EOBRUN; /* only part of saved state we need */ - } - - /* Account for restart interval (no-op if not using restarts) */ - entropy->restarts_to_go--; - - return TRUE; - -undoit: - /* Re-zero any output coefficients that we made newly nonzero */ - while (num_newnz > 0) - (*block)[newnz_pos[--num_newnz]] = 0; - - return FALSE; -} - - -/* - * Decode one MCU's worth of Huffman-compressed coefficients, - * partial blocks. - */ - -METHODDEF(boolean) -decode_mcu_sub (j_decompress_ptr cinfo, JBLOCKROW *MCU_data) -{ - huff_entropy_ptr entropy = (huff_entropy_ptr) cinfo->entropy; - const int * natural_order; - int Se, blkn; - BITREAD_STATE_VARS; - savable_state state; - - /* Process restart marker if needed; may have to suspend */ - if (cinfo->restart_interval) { - if (entropy->restarts_to_go == 0) - if (! process_restart(cinfo)) - return FALSE; - } - - /* If we've run out of data, just leave the MCU set to zeroes. - * This way, we return uniform gray for the remainder of the segment. - */ - if (! entropy->insufficient_data) { - - natural_order = cinfo->natural_order; - Se = cinfo->lim_Se; - - /* Load up working state */ - BITREAD_LOAD_STATE(cinfo,entropy->bitstate); - ASSIGN_STATE(state, entropy->saved); - - /* Outer loop handles each block in the MCU */ - - for (blkn = 0; blkn < cinfo->blocks_in_MCU; blkn++) { - JBLOCKROW block = MCU_data[blkn]; - d_derived_tbl * htbl; - register int s, k, r; - int coef_limit, ci; - - /* Decode a single block's worth of coefficients */ - - /* Section F.2.2.1: decode the DC coefficient difference */ - htbl = entropy->dc_cur_tbls[blkn]; - HUFF_DECODE(s, br_state, htbl, return FALSE, label1); - - htbl = entropy->ac_cur_tbls[blkn]; - k = 1; - coef_limit = entropy->coef_limit[blkn]; - if (coef_limit) { - /* Convert DC difference to actual value, update last_dc_val */ - if (s) { - CHECK_BIT_BUFFER(br_state, s, return FALSE); - r = GET_BITS(s); - s = HUFF_EXTEND(r, s); - } - ci = cinfo->MCU_membership[blkn]; - s += state.last_dc_val[ci]; - state.last_dc_val[ci] = s; - /* Output the DC coefficient */ - (*block)[0] = (JCOEF) s; - - /* Section F.2.2.2: decode the AC coefficients */ - /* Since zeroes are skipped, output area must be cleared beforehand */ - for (; k < coef_limit; k++) { - HUFF_DECODE(s, br_state, htbl, return FALSE, label2); - - r = s >> 4; - s &= 15; - - if (s) { - k += r; - CHECK_BIT_BUFFER(br_state, s, return FALSE); - r = GET_BITS(s); - s = HUFF_EXTEND(r, s); - /* Output coefficient in natural (dezigzagged) order. - * Note: the extra entries in natural_order[] will save us - * if k > Se, which could happen if the data is corrupted. - */ - (*block)[natural_order[k]] = (JCOEF) s; - } else { - if (r != 15) - goto EndOfBlock; - k += 15; - } - } - } else { - if (s) { - CHECK_BIT_BUFFER(br_state, s, return FALSE); - DROP_BITS(s); - } - } - - /* Section F.2.2.2: decode the AC coefficients */ - /* In this path we just discard the values */ - for (; k <= Se; k++) { - HUFF_DECODE(s, br_state, htbl, return FALSE, label3); - - r = s >> 4; - s &= 15; - - if (s) { - k += r; - CHECK_BIT_BUFFER(br_state, s, return FALSE); - DROP_BITS(s); - } else { - if (r != 15) - break; - k += 15; - } - } - - EndOfBlock: ; - } - - /* Completed MCU, so update state */ - BITREAD_SAVE_STATE(cinfo,entropy->bitstate); - ASSIGN_STATE(entropy->saved, state); - } - - /* Account for restart interval (no-op if not using restarts) */ - entropy->restarts_to_go--; - - return TRUE; -} - - -/* - * Decode one MCU's worth of Huffman-compressed coefficients, - * full-size blocks. - */ - -METHODDEF(boolean) -decode_mcu (j_decompress_ptr cinfo, JBLOCKROW *MCU_data) -{ - huff_entropy_ptr entropy = (huff_entropy_ptr) cinfo->entropy; - int blkn; - BITREAD_STATE_VARS; - savable_state state; - - /* Process restart marker if needed; may have to suspend */ - if (cinfo->restart_interval) { - if (entropy->restarts_to_go == 0) - if (! process_restart(cinfo)) - return FALSE; - } - - /* If we've run out of data, just leave the MCU set to zeroes. - * This way, we return uniform gray for the remainder of the segment. - */ - if (! entropy->insufficient_data) { - - /* Load up working state */ - BITREAD_LOAD_STATE(cinfo,entropy->bitstate); - ASSIGN_STATE(state, entropy->saved); - - /* Outer loop handles each block in the MCU */ - - for (blkn = 0; blkn < cinfo->blocks_in_MCU; blkn++) { - JBLOCKROW block = MCU_data[blkn]; - d_derived_tbl * htbl; - register int s, k, r; - int coef_limit, ci; - - /* Decode a single block's worth of coefficients */ - - /* Section F.2.2.1: decode the DC coefficient difference */ - htbl = entropy->dc_cur_tbls[blkn]; - HUFF_DECODE(s, br_state, htbl, return FALSE, label1); - - htbl = entropy->ac_cur_tbls[blkn]; - k = 1; - coef_limit = entropy->coef_limit[blkn]; - if (coef_limit) { - /* Convert DC difference to actual value, update last_dc_val */ - if (s) { - CHECK_BIT_BUFFER(br_state, s, return FALSE); - r = GET_BITS(s); - s = HUFF_EXTEND(r, s); - } - ci = cinfo->MCU_membership[blkn]; - s += state.last_dc_val[ci]; - state.last_dc_val[ci] = s; - /* Output the DC coefficient */ - (*block)[0] = (JCOEF) s; - - /* Section F.2.2.2: decode the AC coefficients */ - /* Since zeroes are skipped, output area must be cleared beforehand */ - for (; k < coef_limit; k++) { - HUFF_DECODE(s, br_state, htbl, return FALSE, label2); - - r = s >> 4; - s &= 15; - - if (s) { - k += r; - CHECK_BIT_BUFFER(br_state, s, return FALSE); - r = GET_BITS(s); - s = HUFF_EXTEND(r, s); - /* Output coefficient in natural (dezigzagged) order. - * Note: the extra entries in jpeg_natural_order[] will save us - * if k >= DCTSIZE2, which could happen if the data is corrupted. - */ - (*block)[jpeg_natural_order[k]] = (JCOEF) s; - } else { - if (r != 15) - goto EndOfBlock; - k += 15; - } - } - } else { - if (s) { - CHECK_BIT_BUFFER(br_state, s, return FALSE); - DROP_BITS(s); - } - } - - /* Section F.2.2.2: decode the AC coefficients */ - /* In this path we just discard the values */ - for (; k < DCTSIZE2; k++) { - HUFF_DECODE(s, br_state, htbl, return FALSE, label3); - - r = s >> 4; - s &= 15; - - if (s) { - k += r; - CHECK_BIT_BUFFER(br_state, s, return FALSE); - DROP_BITS(s); - } else { - if (r != 15) - break; - k += 15; - } - } - - EndOfBlock: ; - } - - /* Completed MCU, so update state */ - BITREAD_SAVE_STATE(cinfo,entropy->bitstate); - ASSIGN_STATE(entropy->saved, state); - } - - /* Account for restart interval (no-op if not using restarts) */ - entropy->restarts_to_go--; - - return TRUE; -} - - -/* - * Initialize for a Huffman-compressed scan. - */ - -METHODDEF(void) -start_pass_huff_decoder (j_decompress_ptr cinfo) -{ - huff_entropy_ptr entropy = (huff_entropy_ptr) cinfo->entropy; - int ci, blkn, tbl, i; - jpeg_component_info * compptr; - - if (cinfo->progressive_mode) { - /* Validate progressive scan parameters */ - if (cinfo->Ss == 0) { - if (cinfo->Se != 0) - goto bad; - } else { - /* need not check Ss/Se < 0 since they came from unsigned bytes */ - if (cinfo->Se < cinfo->Ss || cinfo->Se > cinfo->lim_Se) - goto bad; - /* AC scans may have only one component */ - if (cinfo->comps_in_scan != 1) - goto bad; - } - if (cinfo->Ah != 0) { - /* Successive approximation refinement scan: must have Al = Ah-1. */ - if (cinfo->Ah-1 != cinfo->Al) - goto bad; - } - if (cinfo->Al > 13) { /* need not check for < 0 */ - /* Arguably the maximum Al value should be less than 13 for 8-bit precision, - * but the spec doesn't say so, and we try to be liberal about what we - * accept. Note: large Al values could result in out-of-range DC - * coefficients during early scans, leading to bizarre displays due to - * overflows in the IDCT math. But we won't crash. - */ - bad: - ERREXIT4(cinfo, JERR_BAD_PROGRESSION, - cinfo->Ss, cinfo->Se, cinfo->Ah, cinfo->Al); - } - /* Update progression status, and verify that scan order is legal. - * Note that inter-scan inconsistencies are treated as warnings - * not fatal errors ... not clear if this is right way to behave. - */ - for (ci = 0; ci < cinfo->comps_in_scan; ci++) { - int coefi, cindex = cinfo->cur_comp_info[ci]->component_index; - int *coef_bit_ptr = & cinfo->coef_bits[cindex][0]; - if (cinfo->Ss && coef_bit_ptr[0] < 0) /* AC without prior DC scan */ - WARNMS2(cinfo, JWRN_BOGUS_PROGRESSION, cindex, 0); - for (coefi = cinfo->Ss; coefi <= cinfo->Se; coefi++) { - int expected = (coef_bit_ptr[coefi] < 0) ? 0 : coef_bit_ptr[coefi]; - if (cinfo->Ah != expected) - WARNMS2(cinfo, JWRN_BOGUS_PROGRESSION, cindex, coefi); - coef_bit_ptr[coefi] = cinfo->Al; - } - } - - /* Select MCU decoding routine */ - if (cinfo->Ah == 0) { - if (cinfo->Ss == 0) - entropy->pub.decode_mcu = decode_mcu_DC_first; - else - entropy->pub.decode_mcu = decode_mcu_AC_first; - } else { - if (cinfo->Ss == 0) - entropy->pub.decode_mcu = decode_mcu_DC_refine; - else - entropy->pub.decode_mcu = decode_mcu_AC_refine; - } - - for (ci = 0; ci < cinfo->comps_in_scan; ci++) { - compptr = cinfo->cur_comp_info[ci]; - /* Make sure requested tables are present, and compute derived tables. - * We may build same derived table more than once, but it's not expensive. - */ - if (cinfo->Ss == 0) { - if (cinfo->Ah == 0) { /* DC refinement needs no table */ - tbl = compptr->dc_tbl_no; - jpeg_make_d_derived_tbl(cinfo, TRUE, tbl, - & entropy->derived_tbls[tbl]); - } - } else { - tbl = compptr->ac_tbl_no; - jpeg_make_d_derived_tbl(cinfo, FALSE, tbl, - & entropy->derived_tbls[tbl]); - /* remember the single active table */ - entropy->ac_derived_tbl = entropy->derived_tbls[tbl]; - } - /* Initialize DC predictions to 0 */ - entropy->saved.last_dc_val[ci] = 0; - } - - /* Initialize private state variables */ - entropy->saved.EOBRUN = 0; - } else { - /* Check that the scan parameters Ss, Se, Ah/Al are OK for sequential JPEG. - * This ought to be an error condition, but we make it a warning because - * there are some baseline files out there with all zeroes in these bytes. - */ - if (cinfo->Ss != 0 || cinfo->Ah != 0 || cinfo->Al != 0 || - ((cinfo->is_baseline || cinfo->Se < DCTSIZE2) && - cinfo->Se != cinfo->lim_Se)) - WARNMS(cinfo, JWRN_NOT_SEQUENTIAL); - - /* Select MCU decoding routine */ - /* We retain the hard-coded case for full-size blocks. - * This is not necessary, but it appears that this version is slightly - * more performant in the given implementation. - * With an improved implementation we would prefer a single optimized - * function. - */ - if (cinfo->lim_Se != DCTSIZE2-1) - entropy->pub.decode_mcu = decode_mcu_sub; - else - entropy->pub.decode_mcu = decode_mcu; - - for (ci = 0; ci < cinfo->comps_in_scan; ci++) { - compptr = cinfo->cur_comp_info[ci]; - /* Compute derived values for Huffman tables */ - /* We may do this more than once for a table, but it's not expensive */ - tbl = compptr->dc_tbl_no; - jpeg_make_d_derived_tbl(cinfo, TRUE, tbl, - & entropy->dc_derived_tbls[tbl]); - if (cinfo->lim_Se) { /* AC needs no table when not present */ - tbl = compptr->ac_tbl_no; - jpeg_make_d_derived_tbl(cinfo, FALSE, tbl, - & entropy->ac_derived_tbls[tbl]); - } - /* Initialize DC predictions to 0 */ - entropy->saved.last_dc_val[ci] = 0; - } - - /* Precalculate decoding info for each block in an MCU of this scan */ - for (blkn = 0; blkn < cinfo->blocks_in_MCU; blkn++) { - ci = cinfo->MCU_membership[blkn]; - compptr = cinfo->cur_comp_info[ci]; - /* Precalculate which table to use for each block */ - entropy->dc_cur_tbls[blkn] = entropy->dc_derived_tbls[compptr->dc_tbl_no]; - entropy->ac_cur_tbls[blkn] = entropy->ac_derived_tbls[compptr->ac_tbl_no]; - /* Decide whether we really care about the coefficient values */ - if (compptr->component_needed) { - ci = compptr->DCT_v_scaled_size; - i = compptr->DCT_h_scaled_size; - switch (cinfo->lim_Se) { - case (1*1-1): - entropy->coef_limit[blkn] = 1; - break; - case (2*2-1): - if (ci <= 0 || ci > 2) ci = 2; - if (i <= 0 || i > 2) i = 2; - entropy->coef_limit[blkn] = 1 + jpeg_zigzag_order2[ci - 1][i - 1]; - break; - case (3*3-1): - if (ci <= 0 || ci > 3) ci = 3; - if (i <= 0 || i > 3) i = 3; - entropy->coef_limit[blkn] = 1 + jpeg_zigzag_order3[ci - 1][i - 1]; - break; - case (4*4-1): - if (ci <= 0 || ci > 4) ci = 4; - if (i <= 0 || i > 4) i = 4; - entropy->coef_limit[blkn] = 1 + jpeg_zigzag_order4[ci - 1][i - 1]; - break; - case (5*5-1): - if (ci <= 0 || ci > 5) ci = 5; - if (i <= 0 || i > 5) i = 5; - entropy->coef_limit[blkn] = 1 + jpeg_zigzag_order5[ci - 1][i - 1]; - break; - case (6*6-1): - if (ci <= 0 || ci > 6) ci = 6; - if (i <= 0 || i > 6) i = 6; - entropy->coef_limit[blkn] = 1 + jpeg_zigzag_order6[ci - 1][i - 1]; - break; - case (7*7-1): - if (ci <= 0 || ci > 7) ci = 7; - if (i <= 0 || i > 7) i = 7; - entropy->coef_limit[blkn] = 1 + jpeg_zigzag_order7[ci - 1][i - 1]; - break; - default: - if (ci <= 0 || ci > 8) ci = 8; - if (i <= 0 || i > 8) i = 8; - entropy->coef_limit[blkn] = 1 + jpeg_zigzag_order[ci - 1][i - 1]; - break; - } - } else { - entropy->coef_limit[blkn] = 0; - } - } - } - - /* Initialize bitread state variables */ - entropy->bitstate.bits_left = 0; - entropy->bitstate.get_buffer = 0; /* unnecessary, but keeps Purify quiet */ - entropy->insufficient_data = FALSE; - - /* Initialize restart counter */ - entropy->restarts_to_go = cinfo->restart_interval; -} - - -/* - * Module initialization routine for Huffman entropy decoding. - */ - -GLOBAL(void) -jinit_huff_decoder (j_decompress_ptr cinfo) -{ - huff_entropy_ptr entropy; - int i; - - entropy = (huff_entropy_ptr) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - SIZEOF(huff_entropy_decoder)); - cinfo->entropy = (struct jpeg_entropy_decoder *) entropy; - entropy->pub.start_pass = start_pass_huff_decoder; - - if (cinfo->progressive_mode) { - /* Create progression status table */ - int *coef_bit_ptr, ci; - cinfo->coef_bits = (int (*)[DCTSIZE2]) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - cinfo->num_components*DCTSIZE2*SIZEOF(int)); - coef_bit_ptr = & cinfo->coef_bits[0][0]; - for (ci = 0; ci < cinfo->num_components; ci++) - for (i = 0; i < DCTSIZE2; i++) - *coef_bit_ptr++ = -1; - - /* Mark derived tables unallocated */ - for (i = 0; i < NUM_HUFF_TBLS; i++) { - entropy->derived_tbls[i] = NULL; - } - } else { - /* Mark tables unallocated */ - for (i = 0; i < NUM_HUFF_TBLS; i++) { - entropy->dc_derived_tbls[i] = entropy->ac_derived_tbls[i] = NULL; - } - } -} diff --git a/jpg/jdinput.c b/jpg/jdinput.c deleted file mode 100644 index 2c5c717..0000000 --- a/jpg/jdinput.c +++ /dev/null @@ -1,661 +0,0 @@ -/* - * jdinput.c - * - * Copyright (C) 1991-1997, Thomas G. Lane. - * Modified 2002-2009 by Guido Vollbeding. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file contains input control logic for the JPEG decompressor. - * These routines are concerned with controlling the decompressor's input - * processing (marker reading and coefficient decoding). The actual input - * reading is done in jdmarker.c, jdhuff.c, and jdarith.c. - */ - -#define JPEG_INTERNALS -#include "jinclude.h" -#include "jpeglib.h" - - -/* Private state */ - -typedef struct { - struct jpeg_input_controller pub; /* public fields */ - - int inheaders; /* Nonzero until first SOS is reached */ -} my_input_controller; - -typedef my_input_controller * my_inputctl_ptr; - - -/* Forward declarations */ -METHODDEF(int) consume_markers JPP((j_decompress_ptr cinfo)); - - -/* - * Routines to calculate various quantities related to the size of the image. - */ - - -/* - * Compute output image dimensions and related values. - * NOTE: this is exported for possible use by application. - * Hence it mustn't do anything that can't be done twice. - */ - -GLOBAL(void) -jpeg_core_output_dimensions (j_decompress_ptr cinfo) -/* Do computations that are needed before master selection phase. - * This function is used for transcoding and full decompression. - */ -{ -#ifdef IDCT_SCALING_SUPPORTED - int ci; - jpeg_component_info *compptr; - - /* Compute actual output image dimensions and DCT scaling choices. */ - if (cinfo->scale_num * cinfo->block_size <= cinfo->scale_denom) { - /* Provide 1/block_size scaling */ - cinfo->output_width = (JDIMENSION) - jdiv_round_up((long) cinfo->image_width, (long) cinfo->block_size); - cinfo->output_height = (JDIMENSION) - jdiv_round_up((long) cinfo->image_height, (long) cinfo->block_size); - cinfo->min_DCT_h_scaled_size = 1; - cinfo->min_DCT_v_scaled_size = 1; - } else if (cinfo->scale_num * cinfo->block_size <= cinfo->scale_denom * 2) { - /* Provide 2/block_size scaling */ - cinfo->output_width = (JDIMENSION) - jdiv_round_up((long) cinfo->image_width * 2L, (long) cinfo->block_size); - cinfo->output_height = (JDIMENSION) - jdiv_round_up((long) cinfo->image_height * 2L, (long) cinfo->block_size); - cinfo->min_DCT_h_scaled_size = 2; - cinfo->min_DCT_v_scaled_size = 2; - } else if (cinfo->scale_num * cinfo->block_size <= cinfo->scale_denom * 3) { - /* Provide 3/block_size scaling */ - cinfo->output_width = (JDIMENSION) - jdiv_round_up((long) cinfo->image_width * 3L, (long) cinfo->block_size); - cinfo->output_height = (JDIMENSION) - jdiv_round_up((long) cinfo->image_height * 3L, (long) cinfo->block_size); - cinfo->min_DCT_h_scaled_size = 3; - cinfo->min_DCT_v_scaled_size = 3; - } else if (cinfo->scale_num * cinfo->block_size <= cinfo->scale_denom * 4) { - /* Provide 4/block_size scaling */ - cinfo->output_width = (JDIMENSION) - jdiv_round_up((long) cinfo->image_width * 4L, (long) cinfo->block_size); - cinfo->output_height = (JDIMENSION) - jdiv_round_up((long) cinfo->image_height * 4L, (long) cinfo->block_size); - cinfo->min_DCT_h_scaled_size = 4; - cinfo->min_DCT_v_scaled_size = 4; - } else if (cinfo->scale_num * cinfo->block_size <= cinfo->scale_denom * 5) { - /* Provide 5/block_size scaling */ - cinfo->output_width = (JDIMENSION) - jdiv_round_up((long) cinfo->image_width * 5L, (long) cinfo->block_size); - cinfo->output_height = (JDIMENSION) - jdiv_round_up((long) cinfo->image_height * 5L, (long) cinfo->block_size); - cinfo->min_DCT_h_scaled_size = 5; - cinfo->min_DCT_v_scaled_size = 5; - } else if (cinfo->scale_num * cinfo->block_size <= cinfo->scale_denom * 6) { - /* Provide 6/block_size scaling */ - cinfo->output_width = (JDIMENSION) - jdiv_round_up((long) cinfo->image_width * 6L, (long) cinfo->block_size); - cinfo->output_height = (JDIMENSION) - jdiv_round_up((long) cinfo->image_height * 6L, (long) cinfo->block_size); - cinfo->min_DCT_h_scaled_size = 6; - cinfo->min_DCT_v_scaled_size = 6; - } else if (cinfo->scale_num * cinfo->block_size <= cinfo->scale_denom * 7) { - /* Provide 7/block_size scaling */ - cinfo->output_width = (JDIMENSION) - jdiv_round_up((long) cinfo->image_width * 7L, (long) cinfo->block_size); - cinfo->output_height = (JDIMENSION) - jdiv_round_up((long) cinfo->image_height * 7L, (long) cinfo->block_size); - cinfo->min_DCT_h_scaled_size = 7; - cinfo->min_DCT_v_scaled_size = 7; - } else if (cinfo->scale_num * cinfo->block_size <= cinfo->scale_denom * 8) { - /* Provide 8/block_size scaling */ - cinfo->output_width = (JDIMENSION) - jdiv_round_up((long) cinfo->image_width * 8L, (long) cinfo->block_size); - cinfo->output_height = (JDIMENSION) - jdiv_round_up((long) cinfo->image_height * 8L, (long) cinfo->block_size); - cinfo->min_DCT_h_scaled_size = 8; - cinfo->min_DCT_v_scaled_size = 8; - } else if (cinfo->scale_num * cinfo->block_size <= cinfo->scale_denom * 9) { - /* Provide 9/block_size scaling */ - cinfo->output_width = (JDIMENSION) - jdiv_round_up((long) cinfo->image_width * 9L, (long) cinfo->block_size); - cinfo->output_height = (JDIMENSION) - jdiv_round_up((long) cinfo->image_height * 9L, (long) cinfo->block_size); - cinfo->min_DCT_h_scaled_size = 9; - cinfo->min_DCT_v_scaled_size = 9; - } else if (cinfo->scale_num * cinfo->block_size <= cinfo->scale_denom * 10) { - /* Provide 10/block_size scaling */ - cinfo->output_width = (JDIMENSION) - jdiv_round_up((long) cinfo->image_width * 10L, (long) cinfo->block_size); - cinfo->output_height = (JDIMENSION) - jdiv_round_up((long) cinfo->image_height * 10L, (long) cinfo->block_size); - cinfo->min_DCT_h_scaled_size = 10; - cinfo->min_DCT_v_scaled_size = 10; - } else if (cinfo->scale_num * cinfo->block_size <= cinfo->scale_denom * 11) { - /* Provide 11/block_size scaling */ - cinfo->output_width = (JDIMENSION) - jdiv_round_up((long) cinfo->image_width * 11L, (long) cinfo->block_size); - cinfo->output_height = (JDIMENSION) - jdiv_round_up((long) cinfo->image_height * 11L, (long) cinfo->block_size); - cinfo->min_DCT_h_scaled_size = 11; - cinfo->min_DCT_v_scaled_size = 11; - } else if (cinfo->scale_num * cinfo->block_size <= cinfo->scale_denom * 12) { - /* Provide 12/block_size scaling */ - cinfo->output_width = (JDIMENSION) - jdiv_round_up((long) cinfo->image_width * 12L, (long) cinfo->block_size); - cinfo->output_height = (JDIMENSION) - jdiv_round_up((long) cinfo->image_height * 12L, (long) cinfo->block_size); - cinfo->min_DCT_h_scaled_size = 12; - cinfo->min_DCT_v_scaled_size = 12; - } else if (cinfo->scale_num * cinfo->block_size <= cinfo->scale_denom * 13) { - /* Provide 13/block_size scaling */ - cinfo->output_width = (JDIMENSION) - jdiv_round_up((long) cinfo->image_width * 13L, (long) cinfo->block_size); - cinfo->output_height = (JDIMENSION) - jdiv_round_up((long) cinfo->image_height * 13L, (long) cinfo->block_size); - cinfo->min_DCT_h_scaled_size = 13; - cinfo->min_DCT_v_scaled_size = 13; - } else if (cinfo->scale_num * cinfo->block_size <= cinfo->scale_denom * 14) { - /* Provide 14/block_size scaling */ - cinfo->output_width = (JDIMENSION) - jdiv_round_up((long) cinfo->image_width * 14L, (long) cinfo->block_size); - cinfo->output_height = (JDIMENSION) - jdiv_round_up((long) cinfo->image_height * 14L, (long) cinfo->block_size); - cinfo->min_DCT_h_scaled_size = 14; - cinfo->min_DCT_v_scaled_size = 14; - } else if (cinfo->scale_num * cinfo->block_size <= cinfo->scale_denom * 15) { - /* Provide 15/block_size scaling */ - cinfo->output_width = (JDIMENSION) - jdiv_round_up((long) cinfo->image_width * 15L, (long) cinfo->block_size); - cinfo->output_height = (JDIMENSION) - jdiv_round_up((long) cinfo->image_height * 15L, (long) cinfo->block_size); - cinfo->min_DCT_h_scaled_size = 15; - cinfo->min_DCT_v_scaled_size = 15; - } else { - /* Provide 16/block_size scaling */ - cinfo->output_width = (JDIMENSION) - jdiv_round_up((long) cinfo->image_width * 16L, (long) cinfo->block_size); - cinfo->output_height = (JDIMENSION) - jdiv_round_up((long) cinfo->image_height * 16L, (long) cinfo->block_size); - cinfo->min_DCT_h_scaled_size = 16; - cinfo->min_DCT_v_scaled_size = 16; - } - - /* Recompute dimensions of components */ - for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components; - ci++, compptr++) { - compptr->DCT_h_scaled_size = cinfo->min_DCT_h_scaled_size; - compptr->DCT_v_scaled_size = cinfo->min_DCT_v_scaled_size; - } - -#else /* !IDCT_SCALING_SUPPORTED */ - - /* Hardwire it to "no scaling" */ - cinfo->output_width = cinfo->image_width; - cinfo->output_height = cinfo->image_height; - /* jdinput.c has already initialized DCT_scaled_size, - * and has computed unscaled downsampled_width and downsampled_height. - */ - -#endif /* IDCT_SCALING_SUPPORTED */ -} - - -LOCAL(void) -initial_setup (j_decompress_ptr cinfo) -/* Called once, when first SOS marker is reached */ -{ - int ci; - jpeg_component_info *compptr; - - /* Make sure image isn't bigger than I can handle */ - if ((long) cinfo->image_height > (long) JPEG_MAX_DIMENSION || - (long) cinfo->image_width > (long) JPEG_MAX_DIMENSION) - ERREXIT1(cinfo, JERR_IMAGE_TOO_BIG, (unsigned int) JPEG_MAX_DIMENSION); - - /* For now, precision must match compiled-in value... */ - if (cinfo->data_precision != BITS_IN_JSAMPLE) - ERREXIT1(cinfo, JERR_BAD_PRECISION, cinfo->data_precision); - - /* Check that number of components won't exceed internal array sizes */ - if (cinfo->num_components > MAX_COMPONENTS) - ERREXIT2(cinfo, JERR_COMPONENT_COUNT, cinfo->num_components, - MAX_COMPONENTS); - - /* Compute maximum sampling factors; check factor validity */ - cinfo->max_h_samp_factor = 1; - cinfo->max_v_samp_factor = 1; - for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components; - ci++, compptr++) { - if (compptr->h_samp_factor<=0 || compptr->h_samp_factor>MAX_SAMP_FACTOR || - compptr->v_samp_factor<=0 || compptr->v_samp_factor>MAX_SAMP_FACTOR) - ERREXIT(cinfo, JERR_BAD_SAMPLING); - cinfo->max_h_samp_factor = MAX(cinfo->max_h_samp_factor, - compptr->h_samp_factor); - cinfo->max_v_samp_factor = MAX(cinfo->max_v_samp_factor, - compptr->v_samp_factor); - } - - /* Derive block_size, natural_order, and lim_Se */ - if (cinfo->is_baseline || (cinfo->progressive_mode && - cinfo->comps_in_scan)) { /* no pseudo SOS marker */ - cinfo->block_size = DCTSIZE; - cinfo->natural_order = jpeg_natural_order; - cinfo->lim_Se = DCTSIZE2-1; - } else - switch (cinfo->Se) { - case (1*1-1): - cinfo->block_size = 1; - cinfo->natural_order = jpeg_natural_order; /* not needed */ - cinfo->lim_Se = cinfo->Se; - break; - case (2*2-1): - cinfo->block_size = 2; - cinfo->natural_order = jpeg_natural_order2; - cinfo->lim_Se = cinfo->Se; - break; - case (3*3-1): - cinfo->block_size = 3; - cinfo->natural_order = jpeg_natural_order3; - cinfo->lim_Se = cinfo->Se; - break; - case (4*4-1): - cinfo->block_size = 4; - cinfo->natural_order = jpeg_natural_order4; - cinfo->lim_Se = cinfo->Se; - break; - case (5*5-1): - cinfo->block_size = 5; - cinfo->natural_order = jpeg_natural_order5; - cinfo->lim_Se = cinfo->Se; - break; - case (6*6-1): - cinfo->block_size = 6; - cinfo->natural_order = jpeg_natural_order6; - cinfo->lim_Se = cinfo->Se; - break; - case (7*7-1): - cinfo->block_size = 7; - cinfo->natural_order = jpeg_natural_order7; - cinfo->lim_Se = cinfo->Se; - break; - case (8*8-1): - cinfo->block_size = 8; - cinfo->natural_order = jpeg_natural_order; - cinfo->lim_Se = DCTSIZE2-1; - break; - case (9*9-1): - cinfo->block_size = 9; - cinfo->natural_order = jpeg_natural_order; - cinfo->lim_Se = DCTSIZE2-1; - break; - case (10*10-1): - cinfo->block_size = 10; - cinfo->natural_order = jpeg_natural_order; - cinfo->lim_Se = DCTSIZE2-1; - break; - case (11*11-1): - cinfo->block_size = 11; - cinfo->natural_order = jpeg_natural_order; - cinfo->lim_Se = DCTSIZE2-1; - break; - case (12*12-1): - cinfo->block_size = 12; - cinfo->natural_order = jpeg_natural_order; - cinfo->lim_Se = DCTSIZE2-1; - break; - case (13*13-1): - cinfo->block_size = 13; - cinfo->natural_order = jpeg_natural_order; - cinfo->lim_Se = DCTSIZE2-1; - break; - case (14*14-1): - cinfo->block_size = 14; - cinfo->natural_order = jpeg_natural_order; - cinfo->lim_Se = DCTSIZE2-1; - break; - case (15*15-1): - cinfo->block_size = 15; - cinfo->natural_order = jpeg_natural_order; - cinfo->lim_Se = DCTSIZE2-1; - break; - case (16*16-1): - cinfo->block_size = 16; - cinfo->natural_order = jpeg_natural_order; - cinfo->lim_Se = DCTSIZE2-1; - break; - default: - ERREXIT4(cinfo, JERR_BAD_PROGRESSION, - cinfo->Ss, cinfo->Se, cinfo->Ah, cinfo->Al); - break; - } - - /* We initialize DCT_scaled_size and min_DCT_scaled_size to block_size. - * In the full decompressor, - * this will be overridden by jpeg_calc_output_dimensions in jdmaster.c; - * but in the transcoder, - * jpeg_calc_output_dimensions is not used, so we must do it here. - */ - cinfo->min_DCT_h_scaled_size = cinfo->block_size; - cinfo->min_DCT_v_scaled_size = cinfo->block_size; - - /* Compute dimensions of components */ - for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components; - ci++, compptr++) { - compptr->DCT_h_scaled_size = cinfo->block_size; - compptr->DCT_v_scaled_size = cinfo->block_size; - /* Size in DCT blocks */ - compptr->width_in_blocks = (JDIMENSION) - jdiv_round_up((long) cinfo->image_width * (long) compptr->h_samp_factor, - (long) (cinfo->max_h_samp_factor * cinfo->block_size)); - compptr->height_in_blocks = (JDIMENSION) - jdiv_round_up((long) cinfo->image_height * (long) compptr->v_samp_factor, - (long) (cinfo->max_v_samp_factor * cinfo->block_size)); - /* downsampled_width and downsampled_height will also be overridden by - * jdmaster.c if we are doing full decompression. The transcoder library - * doesn't use these values, but the calling application might. - */ - /* Size in samples */ - compptr->downsampled_width = (JDIMENSION) - jdiv_round_up((long) cinfo->image_width * (long) compptr->h_samp_factor, - (long) cinfo->max_h_samp_factor); - compptr->downsampled_height = (JDIMENSION) - jdiv_round_up((long) cinfo->image_height * (long) compptr->v_samp_factor, - (long) cinfo->max_v_samp_factor); - /* Mark component needed, until color conversion says otherwise */ - compptr->component_needed = TRUE; - /* Mark no quantization table yet saved for component */ - compptr->quant_table = NULL; - } - - /* Compute number of fully interleaved MCU rows. */ - cinfo->total_iMCU_rows = (JDIMENSION) - jdiv_round_up((long) cinfo->image_height, - (long) (cinfo->max_v_samp_factor * cinfo->block_size)); - - /* Decide whether file contains multiple scans */ - if (cinfo->comps_in_scan < cinfo->num_components || cinfo->progressive_mode) - cinfo->inputctl->has_multiple_scans = TRUE; - else - cinfo->inputctl->has_multiple_scans = FALSE; -} - - -LOCAL(void) -per_scan_setup (j_decompress_ptr cinfo) -/* Do computations that are needed before processing a JPEG scan */ -/* cinfo->comps_in_scan and cinfo->cur_comp_info[] were set from SOS marker */ -{ - int ci, mcublks, tmp; - jpeg_component_info *compptr; - - if (cinfo->comps_in_scan == 1) { - - /* Noninterleaved (single-component) scan */ - compptr = cinfo->cur_comp_info[0]; - - /* Overall image size in MCUs */ - cinfo->MCUs_per_row = compptr->width_in_blocks; - cinfo->MCU_rows_in_scan = compptr->height_in_blocks; - - /* For noninterleaved scan, always one block per MCU */ - compptr->MCU_width = 1; - compptr->MCU_height = 1; - compptr->MCU_blocks = 1; - compptr->MCU_sample_width = compptr->DCT_h_scaled_size; - compptr->last_col_width = 1; - /* For noninterleaved scans, it is convenient to define last_row_height - * as the number of block rows present in the last iMCU row. - */ - tmp = (int) (compptr->height_in_blocks % compptr->v_samp_factor); - if (tmp == 0) tmp = compptr->v_samp_factor; - compptr->last_row_height = tmp; - - /* Prepare array describing MCU composition */ - cinfo->blocks_in_MCU = 1; - cinfo->MCU_membership[0] = 0; - - } else { - - /* Interleaved (multi-component) scan */ - if (cinfo->comps_in_scan <= 0 || cinfo->comps_in_scan > MAX_COMPS_IN_SCAN) - ERREXIT2(cinfo, JERR_COMPONENT_COUNT, cinfo->comps_in_scan, - MAX_COMPS_IN_SCAN); - - /* Overall image size in MCUs */ - cinfo->MCUs_per_row = (JDIMENSION) - jdiv_round_up((long) cinfo->image_width, - (long) (cinfo->max_h_samp_factor * cinfo->block_size)); - cinfo->MCU_rows_in_scan = (JDIMENSION) - jdiv_round_up((long) cinfo->image_height, - (long) (cinfo->max_v_samp_factor * cinfo->block_size)); - - cinfo->blocks_in_MCU = 0; - - for (ci = 0; ci < cinfo->comps_in_scan; ci++) { - compptr = cinfo->cur_comp_info[ci]; - /* Sampling factors give # of blocks of component in each MCU */ - compptr->MCU_width = compptr->h_samp_factor; - compptr->MCU_height = compptr->v_samp_factor; - compptr->MCU_blocks = compptr->MCU_width * compptr->MCU_height; - compptr->MCU_sample_width = compptr->MCU_width * compptr->DCT_h_scaled_size; - /* Figure number of non-dummy blocks in last MCU column & row */ - tmp = (int) (compptr->width_in_blocks % compptr->MCU_width); - if (tmp == 0) tmp = compptr->MCU_width; - compptr->last_col_width = tmp; - tmp = (int) (compptr->height_in_blocks % compptr->MCU_height); - if (tmp == 0) tmp = compptr->MCU_height; - compptr->last_row_height = tmp; - /* Prepare array describing MCU composition */ - mcublks = compptr->MCU_blocks; - if (cinfo->blocks_in_MCU + mcublks > D_MAX_BLOCKS_IN_MCU) - ERREXIT(cinfo, JERR_BAD_MCU_SIZE); - while (mcublks-- > 0) { - cinfo->MCU_membership[cinfo->blocks_in_MCU++] = ci; - } - } - - } -} - - -/* - * Save away a copy of the Q-table referenced by each component present - * in the current scan, unless already saved during a prior scan. - * - * In a multiple-scan JPEG file, the encoder could assign different components - * the same Q-table slot number, but change table definitions between scans - * so that each component uses a different Q-table. (The IJG encoder is not - * currently capable of doing this, but other encoders might.) Since we want - * to be able to dequantize all the components at the end of the file, this - * means that we have to save away the table actually used for each component. - * We do this by copying the table at the start of the first scan containing - * the component. - * The JPEG spec prohibits the encoder from changing the contents of a Q-table - * slot between scans of a component using that slot. If the encoder does so - * anyway, this decoder will simply use the Q-table values that were current - * at the start of the first scan for the component. - * - * The decompressor output side looks only at the saved quant tables, - * not at the current Q-table slots. - */ - -LOCAL(void) -latch_quant_tables (j_decompress_ptr cinfo) -{ - int ci, qtblno; - jpeg_component_info *compptr; - JQUANT_TBL * qtbl; - - for (ci = 0; ci < cinfo->comps_in_scan; ci++) { - compptr = cinfo->cur_comp_info[ci]; - /* No work if we already saved Q-table for this component */ - if (compptr->quant_table != NULL) - continue; - /* Make sure specified quantization table is present */ - qtblno = compptr->quant_tbl_no; - if (qtblno < 0 || qtblno >= NUM_QUANT_TBLS || - cinfo->quant_tbl_ptrs[qtblno] == NULL) - ERREXIT1(cinfo, JERR_NO_QUANT_TABLE, qtblno); - /* OK, save away the quantization table */ - qtbl = (JQUANT_TBL *) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - SIZEOF(JQUANT_TBL)); - MEMCOPY(qtbl, cinfo->quant_tbl_ptrs[qtblno], SIZEOF(JQUANT_TBL)); - compptr->quant_table = qtbl; - } -} - - -/* - * Initialize the input modules to read a scan of compressed data. - * The first call to this is done by jdmaster.c after initializing - * the entire decompressor (during jpeg_start_decompress). - * Subsequent calls come from consume_markers, below. - */ - -METHODDEF(void) -start_input_pass (j_decompress_ptr cinfo) -{ - per_scan_setup(cinfo); - latch_quant_tables(cinfo); - (*cinfo->entropy->start_pass) (cinfo); - (*cinfo->coef->start_input_pass) (cinfo); - cinfo->inputctl->consume_input = cinfo->coef->consume_data; -} - - -/* - * Finish up after inputting a compressed-data scan. - * This is called by the coefficient controller after it's read all - * the expected data of the scan. - */ - -METHODDEF(void) -finish_input_pass (j_decompress_ptr cinfo) -{ - cinfo->inputctl->consume_input = consume_markers; -} - - -/* - * Read JPEG markers before, between, or after compressed-data scans. - * Change state as necessary when a new scan is reached. - * Return value is JPEG_SUSPENDED, JPEG_REACHED_SOS, or JPEG_REACHED_EOI. - * - * The consume_input method pointer points either here or to the - * coefficient controller's consume_data routine, depending on whether - * we are reading a compressed data segment or inter-segment markers. - * - * Note: This function should NOT return a pseudo SOS marker (with zero - * component number) to the caller. A pseudo marker received by - * read_markers is processed and then skipped for other markers. - */ - -METHODDEF(int) -consume_markers (j_decompress_ptr cinfo) -{ - my_inputctl_ptr inputctl = (my_inputctl_ptr) cinfo->inputctl; - int val; - - if (inputctl->pub.eoi_reached) /* After hitting EOI, read no further */ - return JPEG_REACHED_EOI; - - for (;;) { /* Loop to pass pseudo SOS marker */ - val = (*cinfo->marker->read_markers) (cinfo); - - switch (val) { - case JPEG_REACHED_SOS: /* Found SOS */ - if (inputctl->inheaders) { /* 1st SOS */ - if (inputctl->inheaders == 1) - initial_setup(cinfo); - if (cinfo->comps_in_scan == 0) { /* pseudo SOS marker */ - inputctl->inheaders = 2; - break; - } - inputctl->inheaders = 0; - /* Note: start_input_pass must be called by jdmaster.c - * before any more input can be consumed. jdapimin.c is - * responsible for enforcing this sequencing. - */ - } else { /* 2nd or later SOS marker */ - if (! inputctl->pub.has_multiple_scans) - ERREXIT(cinfo, JERR_EOI_EXPECTED); /* Oops, I wasn't expecting this! */ - if (cinfo->comps_in_scan == 0) /* unexpected pseudo SOS marker */ - break; - start_input_pass(cinfo); - } - return val; - case JPEG_REACHED_EOI: /* Found EOI */ - inputctl->pub.eoi_reached = TRUE; - if (inputctl->inheaders) { /* Tables-only datastream, apparently */ - if (cinfo->marker->saw_SOF) - ERREXIT(cinfo, JERR_SOF_NO_SOS); - } else { - /* Prevent infinite loop in coef ctlr's decompress_data routine - * if user set output_scan_number larger than number of scans. - */ - if (cinfo->output_scan_number > cinfo->input_scan_number) - cinfo->output_scan_number = cinfo->input_scan_number; - } - return val; - case JPEG_SUSPENDED: - return val; - default: - return val; - } - } -} - - -/* - * Reset state to begin a fresh datastream. - */ - -METHODDEF(void) -reset_input_controller (j_decompress_ptr cinfo) -{ - my_inputctl_ptr inputctl = (my_inputctl_ptr) cinfo->inputctl; - - inputctl->pub.consume_input = consume_markers; - inputctl->pub.has_multiple_scans = FALSE; /* "unknown" would be better */ - inputctl->pub.eoi_reached = FALSE; - inputctl->inheaders = 1; - /* Reset other modules */ - (*cinfo->err->reset_error_mgr) ((j_common_ptr) cinfo); - (*cinfo->marker->reset_marker_reader) (cinfo); - /* Reset progression state -- would be cleaner if entropy decoder did this */ - cinfo->coef_bits = NULL; -} - - -/* - * Initialize the input controller module. - * This is called only once, when the decompression object is created. - */ - -GLOBAL(void) -jinit_input_controller (j_decompress_ptr cinfo) -{ - my_inputctl_ptr inputctl; - - /* Create subobject in permanent pool */ - inputctl = (my_inputctl_ptr) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_PERMANENT, - SIZEOF(my_input_controller)); - cinfo->inputctl = (struct jpeg_input_controller *) inputctl; - /* Initialize method pointers */ - inputctl->pub.consume_input = consume_markers; - inputctl->pub.reset_input_controller = reset_input_controller; - inputctl->pub.start_input_pass = start_input_pass; - inputctl->pub.finish_input_pass = finish_input_pass; - /* Initialize state: can't use reset_input_controller since we don't - * want to try to reset other modules yet. - */ - inputctl->pub.has_multiple_scans = FALSE; /* "unknown" would be better */ - inputctl->pub.eoi_reached = FALSE; - inputctl->inheaders = 1; -} diff --git a/jpg/jdmainct.c b/jpg/jdmainct.c deleted file mode 100644 index 02723ca..0000000 --- a/jpg/jdmainct.c +++ /dev/null @@ -1,512 +0,0 @@ -/* - * jdmainct.c - * - * Copyright (C) 1994-1996, Thomas G. Lane. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file contains the main buffer controller for decompression. - * The main buffer lies between the JPEG decompressor proper and the - * post-processor; it holds downsampled data in the JPEG colorspace. - * - * Note that this code is bypassed in raw-data mode, since the application - * supplies the equivalent of the main buffer in that case. - */ - -#define JPEG_INTERNALS -#include "jinclude.h" -#include "jpeglib.h" - - -/* - * In the current system design, the main buffer need never be a full-image - * buffer; any full-height buffers will be found inside the coefficient or - * postprocessing controllers. Nonetheless, the main controller is not - * trivial. Its responsibility is to provide context rows for upsampling/ - * rescaling, and doing this in an efficient fashion is a bit tricky. - * - * Postprocessor input data is counted in "row groups". A row group - * is defined to be (v_samp_factor * DCT_scaled_size / min_DCT_scaled_size) - * sample rows of each component. (We require DCT_scaled_size values to be - * chosen such that these numbers are integers. In practice DCT_scaled_size - * values will likely be powers of two, so we actually have the stronger - * condition that DCT_scaled_size / min_DCT_scaled_size is an integer.) - * Upsampling will typically produce max_v_samp_factor pixel rows from each - * row group (times any additional scale factor that the upsampler is - * applying). - * - * The coefficient controller will deliver data to us one iMCU row at a time; - * each iMCU row contains v_samp_factor * DCT_scaled_size sample rows, or - * exactly min_DCT_scaled_size row groups. (This amount of data corresponds - * to one row of MCUs when the image is fully interleaved.) Note that the - * number of sample rows varies across components, but the number of row - * groups does not. Some garbage sample rows may be included in the last iMCU - * row at the bottom of the image. - * - * Depending on the vertical scaling algorithm used, the upsampler may need - * access to the sample row(s) above and below its current input row group. - * The upsampler is required to set need_context_rows TRUE at global selection - * time if so. When need_context_rows is FALSE, this controller can simply - * obtain one iMCU row at a time from the coefficient controller and dole it - * out as row groups to the postprocessor. - * - * When need_context_rows is TRUE, this controller guarantees that the buffer - * passed to postprocessing contains at least one row group's worth of samples - * above and below the row group(s) being processed. Note that the context - * rows "above" the first passed row group appear at negative row offsets in - * the passed buffer. At the top and bottom of the image, the required - * context rows are manufactured by duplicating the first or last real sample - * row; this avoids having special cases in the upsampling inner loops. - * - * The amount of context is fixed at one row group just because that's a - * convenient number for this controller to work with. The existing - * upsamplers really only need one sample row of context. An upsampler - * supporting arbitrary output rescaling might wish for more than one row - * group of context when shrinking the image; tough, we don't handle that. - * (This is justified by the assumption that downsizing will be handled mostly - * by adjusting the DCT_scaled_size values, so that the actual scale factor at - * the upsample step needn't be much less than one.) - * - * To provide the desired context, we have to retain the last two row groups - * of one iMCU row while reading in the next iMCU row. (The last row group - * can't be processed until we have another row group for its below-context, - * and so we have to save the next-to-last group too for its above-context.) - * We could do this most simply by copying data around in our buffer, but - * that'd be very slow. We can avoid copying any data by creating a rather - * strange pointer structure. Here's how it works. We allocate a workspace - * consisting of M+2 row groups (where M = min_DCT_scaled_size is the number - * of row groups per iMCU row). We create two sets of redundant pointers to - * the workspace. Labeling the physical row groups 0 to M+1, the synthesized - * pointer lists look like this: - * M+1 M-1 - * master pointer --> 0 master pointer --> 0 - * 1 1 - * ... ... - * M-3 M-3 - * M-2 M - * M-1 M+1 - * M M-2 - * M+1 M-1 - * 0 0 - * We read alternate iMCU rows using each master pointer; thus the last two - * row groups of the previous iMCU row remain un-overwritten in the workspace. - * The pointer lists are set up so that the required context rows appear to - * be adjacent to the proper places when we pass the pointer lists to the - * upsampler. - * - * The above pictures describe the normal state of the pointer lists. - * At top and bottom of the image, we diddle the pointer lists to duplicate - * the first or last sample row as necessary (this is cheaper than copying - * sample rows around). - * - * This scheme breaks down if M < 2, ie, min_DCT_scaled_size is 1. In that - * situation each iMCU row provides only one row group so the buffering logic - * must be different (eg, we must read two iMCU rows before we can emit the - * first row group). For now, we simply do not support providing context - * rows when min_DCT_scaled_size is 1. That combination seems unlikely to - * be worth providing --- if someone wants a 1/8th-size preview, they probably - * want it quick and dirty, so a context-free upsampler is sufficient. - */ - - -/* Private buffer controller object */ - -typedef struct { - struct jpeg_d_main_controller pub; /* public fields */ - - /* Pointer to allocated workspace (M or M+2 row groups). */ - JSAMPARRAY buffer[MAX_COMPONENTS]; - - boolean buffer_full; /* Have we gotten an iMCU row from decoder? */ - JDIMENSION rowgroup_ctr; /* counts row groups output to postprocessor */ - - /* Remaining fields are only used in the context case. */ - - /* These are the master pointers to the funny-order pointer lists. */ - JSAMPIMAGE xbuffer[2]; /* pointers to weird pointer lists */ - - int whichptr; /* indicates which pointer set is now in use */ - int context_state; /* process_data state machine status */ - JDIMENSION rowgroups_avail; /* row groups available to postprocessor */ - JDIMENSION iMCU_row_ctr; /* counts iMCU rows to detect image top/bot */ -} my_main_controller; - -typedef my_main_controller * my_main_ptr; - -/* context_state values: */ -#define CTX_PREPARE_FOR_IMCU 0 /* need to prepare for MCU row */ -#define CTX_PROCESS_IMCU 1 /* feeding iMCU to postprocessor */ -#define CTX_POSTPONED_ROW 2 /* feeding postponed row group */ - - -/* Forward declarations */ -METHODDEF(void) process_data_simple_main - JPP((j_decompress_ptr cinfo, JSAMPARRAY output_buf, - JDIMENSION *out_row_ctr, JDIMENSION out_rows_avail)); -METHODDEF(void) process_data_context_main - JPP((j_decompress_ptr cinfo, JSAMPARRAY output_buf, - JDIMENSION *out_row_ctr, JDIMENSION out_rows_avail)); -#ifdef QUANT_2PASS_SUPPORTED -METHODDEF(void) process_data_crank_post - JPP((j_decompress_ptr cinfo, JSAMPARRAY output_buf, - JDIMENSION *out_row_ctr, JDIMENSION out_rows_avail)); -#endif - - -LOCAL(void) -alloc_funny_pointers (j_decompress_ptr cinfo) -/* Allocate space for the funny pointer lists. - * This is done only once, not once per pass. - */ -{ - my_main_ptr main = (my_main_ptr) cinfo->main; - int ci, rgroup; - int M = cinfo->min_DCT_v_scaled_size; - jpeg_component_info *compptr; - JSAMPARRAY xbuf; - - /* Get top-level space for component array pointers. - * We alloc both arrays with one call to save a few cycles. - */ - main->xbuffer[0] = (JSAMPIMAGE) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - cinfo->num_components * 2 * SIZEOF(JSAMPARRAY)); - main->xbuffer[1] = main->xbuffer[0] + cinfo->num_components; - - for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components; - ci++, compptr++) { - rgroup = (compptr->v_samp_factor * compptr->DCT_v_scaled_size) / - cinfo->min_DCT_v_scaled_size; /* height of a row group of component */ - /* Get space for pointer lists --- M+4 row groups in each list. - * We alloc both pointer lists with one call to save a few cycles. - */ - xbuf = (JSAMPARRAY) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - 2 * (rgroup * (M + 4)) * SIZEOF(JSAMPROW)); - xbuf += rgroup; /* want one row group at negative offsets */ - main->xbuffer[0][ci] = xbuf; - xbuf += rgroup * (M + 4); - main->xbuffer[1][ci] = xbuf; - } -} - - -LOCAL(void) -make_funny_pointers (j_decompress_ptr cinfo) -/* Create the funny pointer lists discussed in the comments above. - * The actual workspace is already allocated (in main->buffer), - * and the space for the pointer lists is allocated too. - * This routine just fills in the curiously ordered lists. - * This will be repeated at the beginning of each pass. - */ -{ - my_main_ptr main = (my_main_ptr) cinfo->main; - int ci, i, rgroup; - int M = cinfo->min_DCT_v_scaled_size; - jpeg_component_info *compptr; - JSAMPARRAY buf, xbuf0, xbuf1; - - for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components; - ci++, compptr++) { - rgroup = (compptr->v_samp_factor * compptr->DCT_v_scaled_size) / - cinfo->min_DCT_v_scaled_size; /* height of a row group of component */ - xbuf0 = main->xbuffer[0][ci]; - xbuf1 = main->xbuffer[1][ci]; - /* First copy the workspace pointers as-is */ - buf = main->buffer[ci]; - for (i = 0; i < rgroup * (M + 2); i++) { - xbuf0[i] = xbuf1[i] = buf[i]; - } - /* In the second list, put the last four row groups in swapped order */ - for (i = 0; i < rgroup * 2; i++) { - xbuf1[rgroup*(M-2) + i] = buf[rgroup*M + i]; - xbuf1[rgroup*M + i] = buf[rgroup*(M-2) + i]; - } - /* The wraparound pointers at top and bottom will be filled later - * (see set_wraparound_pointers, below). Initially we want the "above" - * pointers to duplicate the first actual data line. This only needs - * to happen in xbuffer[0]. - */ - for (i = 0; i < rgroup; i++) { - xbuf0[i - rgroup] = xbuf0[0]; - } - } -} - - -LOCAL(void) -set_wraparound_pointers (j_decompress_ptr cinfo) -/* Set up the "wraparound" pointers at top and bottom of the pointer lists. - * This changes the pointer list state from top-of-image to the normal state. - */ -{ - my_main_ptr main = (my_main_ptr) cinfo->main; - int ci, i, rgroup; - int M = cinfo->min_DCT_v_scaled_size; - jpeg_component_info *compptr; - JSAMPARRAY xbuf0, xbuf1; - - for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components; - ci++, compptr++) { - rgroup = (compptr->v_samp_factor * compptr->DCT_v_scaled_size) / - cinfo->min_DCT_v_scaled_size; /* height of a row group of component */ - xbuf0 = main->xbuffer[0][ci]; - xbuf1 = main->xbuffer[1][ci]; - for (i = 0; i < rgroup; i++) { - xbuf0[i - rgroup] = xbuf0[rgroup*(M+1) + i]; - xbuf1[i - rgroup] = xbuf1[rgroup*(M+1) + i]; - xbuf0[rgroup*(M+2) + i] = xbuf0[i]; - xbuf1[rgroup*(M+2) + i] = xbuf1[i]; - } - } -} - - -LOCAL(void) -set_bottom_pointers (j_decompress_ptr cinfo) -/* Change the pointer lists to duplicate the last sample row at the bottom - * of the image. whichptr indicates which xbuffer holds the final iMCU row. - * Also sets rowgroups_avail to indicate number of nondummy row groups in row. - */ -{ - my_main_ptr main = (my_main_ptr) cinfo->main; - int ci, i, rgroup, iMCUheight, rows_left; - jpeg_component_info *compptr; - JSAMPARRAY xbuf; - - for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components; - ci++, compptr++) { - /* Count sample rows in one iMCU row and in one row group */ - iMCUheight = compptr->v_samp_factor * compptr->DCT_v_scaled_size; - rgroup = iMCUheight / cinfo->min_DCT_v_scaled_size; - /* Count nondummy sample rows remaining for this component */ - rows_left = (int) (compptr->downsampled_height % (JDIMENSION) iMCUheight); - if (rows_left == 0) rows_left = iMCUheight; - /* Count nondummy row groups. Should get same answer for each component, - * so we need only do it once. - */ - if (ci == 0) { - main->rowgroups_avail = (JDIMENSION) ((rows_left-1) / rgroup + 1); - } - /* Duplicate the last real sample row rgroup*2 times; this pads out the - * last partial rowgroup and ensures at least one full rowgroup of context. - */ - xbuf = main->xbuffer[main->whichptr][ci]; - for (i = 0; i < rgroup * 2; i++) { - xbuf[rows_left + i] = xbuf[rows_left-1]; - } - } -} - - -/* - * Initialize for a processing pass. - */ - -METHODDEF(void) -start_pass_main (j_decompress_ptr cinfo, J_BUF_MODE pass_mode) -{ - my_main_ptr main = (my_main_ptr) cinfo->main; - - switch (pass_mode) { - case JBUF_PASS_THRU: - if (cinfo->upsample->need_context_rows) { - main->pub.process_data = process_data_context_main; - make_funny_pointers(cinfo); /* Create the xbuffer[] lists */ - main->whichptr = 0; /* Read first iMCU row into xbuffer[0] */ - main->context_state = CTX_PREPARE_FOR_IMCU; - main->iMCU_row_ctr = 0; - } else { - /* Simple case with no context needed */ - main->pub.process_data = process_data_simple_main; - } - main->buffer_full = FALSE; /* Mark buffer empty */ - main->rowgroup_ctr = 0; - break; -#ifdef QUANT_2PASS_SUPPORTED - case JBUF_CRANK_DEST: - /* For last pass of 2-pass quantization, just crank the postprocessor */ - main->pub.process_data = process_data_crank_post; - break; -#endif - default: - ERREXIT(cinfo, JERR_BAD_BUFFER_MODE); - break; - } -} - - -/* - * Process some data. - * This handles the simple case where no context is required. - */ - -METHODDEF(void) -process_data_simple_main (j_decompress_ptr cinfo, - JSAMPARRAY output_buf, JDIMENSION *out_row_ctr, - JDIMENSION out_rows_avail) -{ - my_main_ptr main = (my_main_ptr) cinfo->main; - JDIMENSION rowgroups_avail; - - /* Read input data if we haven't filled the main buffer yet */ - if (! main->buffer_full) { - if (! (*cinfo->coef->decompress_data) (cinfo, main->buffer)) - return; /* suspension forced, can do nothing more */ - main->buffer_full = TRUE; /* OK, we have an iMCU row to work with */ - } - - /* There are always min_DCT_scaled_size row groups in an iMCU row. */ - rowgroups_avail = (JDIMENSION) cinfo->min_DCT_v_scaled_size; - /* Note: at the bottom of the image, we may pass extra garbage row groups - * to the postprocessor. The postprocessor has to check for bottom - * of image anyway (at row resolution), so no point in us doing it too. - */ - - /* Feed the postprocessor */ - (*cinfo->post->post_process_data) (cinfo, main->buffer, - &main->rowgroup_ctr, rowgroups_avail, - output_buf, out_row_ctr, out_rows_avail); - - /* Has postprocessor consumed all the data yet? If so, mark buffer empty */ - if (main->rowgroup_ctr >= rowgroups_avail) { - main->buffer_full = FALSE; - main->rowgroup_ctr = 0; - } -} - - -/* - * Process some data. - * This handles the case where context rows must be provided. - */ - -METHODDEF(void) -process_data_context_main (j_decompress_ptr cinfo, - JSAMPARRAY output_buf, JDIMENSION *out_row_ctr, - JDIMENSION out_rows_avail) -{ - my_main_ptr main = (my_main_ptr) cinfo->main; - - /* Read input data if we haven't filled the main buffer yet */ - if (! main->buffer_full) { - if (! (*cinfo->coef->decompress_data) (cinfo, - main->xbuffer[main->whichptr])) - return; /* suspension forced, can do nothing more */ - main->buffer_full = TRUE; /* OK, we have an iMCU row to work with */ - main->iMCU_row_ctr++; /* count rows received */ - } - - /* Postprocessor typically will not swallow all the input data it is handed - * in one call (due to filling the output buffer first). Must be prepared - * to exit and restart. This switch lets us keep track of how far we got. - * Note that each case falls through to the next on successful completion. - */ - switch (main->context_state) { - case CTX_POSTPONED_ROW: - /* Call postprocessor using previously set pointers for postponed row */ - (*cinfo->post->post_process_data) (cinfo, main->xbuffer[main->whichptr], - &main->rowgroup_ctr, main->rowgroups_avail, - output_buf, out_row_ctr, out_rows_avail); - if (main->rowgroup_ctr < main->rowgroups_avail) - return; /* Need to suspend */ - main->context_state = CTX_PREPARE_FOR_IMCU; - if (*out_row_ctr >= out_rows_avail) - return; /* Postprocessor exactly filled output buf */ - /*FALLTHROUGH*/ - case CTX_PREPARE_FOR_IMCU: - /* Prepare to process first M-1 row groups of this iMCU row */ - main->rowgroup_ctr = 0; - main->rowgroups_avail = (JDIMENSION) (cinfo->min_DCT_v_scaled_size - 1); - /* Check for bottom of image: if so, tweak pointers to "duplicate" - * the last sample row, and adjust rowgroups_avail to ignore padding rows. - */ - if (main->iMCU_row_ctr == cinfo->total_iMCU_rows) - set_bottom_pointers(cinfo); - main->context_state = CTX_PROCESS_IMCU; - /*FALLTHROUGH*/ - case CTX_PROCESS_IMCU: - /* Call postprocessor using previously set pointers */ - (*cinfo->post->post_process_data) (cinfo, main->xbuffer[main->whichptr], - &main->rowgroup_ctr, main->rowgroups_avail, - output_buf, out_row_ctr, out_rows_avail); - if (main->rowgroup_ctr < main->rowgroups_avail) - return; /* Need to suspend */ - /* After the first iMCU, change wraparound pointers to normal state */ - if (main->iMCU_row_ctr == 1) - set_wraparound_pointers(cinfo); - /* Prepare to load new iMCU row using other xbuffer list */ - main->whichptr ^= 1; /* 0=>1 or 1=>0 */ - main->buffer_full = FALSE; - /* Still need to process last row group of this iMCU row, */ - /* which is saved at index M+1 of the other xbuffer */ - main->rowgroup_ctr = (JDIMENSION) (cinfo->min_DCT_v_scaled_size + 1); - main->rowgroups_avail = (JDIMENSION) (cinfo->min_DCT_v_scaled_size + 2); - main->context_state = CTX_POSTPONED_ROW; - } -} - - -/* - * Process some data. - * Final pass of two-pass quantization: just call the postprocessor. - * Source data will be the postprocessor controller's internal buffer. - */ - -#ifdef QUANT_2PASS_SUPPORTED - -METHODDEF(void) -process_data_crank_post (j_decompress_ptr cinfo, - JSAMPARRAY output_buf, JDIMENSION *out_row_ctr, - JDIMENSION out_rows_avail) -{ - (*cinfo->post->post_process_data) (cinfo, (JSAMPIMAGE) NULL, - (JDIMENSION *) NULL, (JDIMENSION) 0, - output_buf, out_row_ctr, out_rows_avail); -} - -#endif /* QUANT_2PASS_SUPPORTED */ - - -/* - * Initialize main buffer controller. - */ - -GLOBAL(void) -jinit_d_main_controller (j_decompress_ptr cinfo, boolean need_full_buffer) -{ - my_main_ptr main; - int ci, rgroup, ngroups; - jpeg_component_info *compptr; - - main = (my_main_ptr) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - SIZEOF(my_main_controller)); - cinfo->main = (struct jpeg_d_main_controller *) main; - main->pub.start_pass = start_pass_main; - - if (need_full_buffer) /* shouldn't happen */ - ERREXIT(cinfo, JERR_BAD_BUFFER_MODE); - - /* Allocate the workspace. - * ngroups is the number of row groups we need. - */ - if (cinfo->upsample->need_context_rows) { - if (cinfo->min_DCT_v_scaled_size < 2) /* unsupported, see comments above */ - ERREXIT(cinfo, JERR_NOTIMPL); - alloc_funny_pointers(cinfo); /* Alloc space for xbuffer[] lists */ - ngroups = cinfo->min_DCT_v_scaled_size + 2; - } else { - ngroups = cinfo->min_DCT_v_scaled_size; - } - - for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components; - ci++, compptr++) { - rgroup = (compptr->v_samp_factor * compptr->DCT_v_scaled_size) / - cinfo->min_DCT_v_scaled_size; /* height of a row group of component */ - main->buffer[ci] = (*cinfo->mem->alloc_sarray) - ((j_common_ptr) cinfo, JPOOL_IMAGE, - compptr->width_in_blocks * compptr->DCT_h_scaled_size, - (JDIMENSION) (rgroup * ngroups)); - } -} diff --git a/jpg/jdmarker.c b/jpg/jdmarker.c deleted file mode 100644 index f2a9cc4..0000000 --- a/jpg/jdmarker.c +++ /dev/null @@ -1,1406 +0,0 @@ -/* - * jdmarker.c - * - * Copyright (C) 1991-1998, Thomas G. Lane. - * Modified 2009 by Guido Vollbeding. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file contains routines to decode JPEG datastream markers. - * Most of the complexity arises from our desire to support input - * suspension: if not all of the data for a marker is available, - * we must exit back to the application. On resumption, we reprocess - * the marker. - */ - -#define JPEG_INTERNALS -#include "jinclude.h" -#include "jpeglib.h" - - -typedef enum { /* JPEG marker codes */ - M_SOF0 = 0xc0, - M_SOF1 = 0xc1, - M_SOF2 = 0xc2, - M_SOF3 = 0xc3, - - M_SOF5 = 0xc5, - M_SOF6 = 0xc6, - M_SOF7 = 0xc7, - - M_JPG = 0xc8, - M_SOF9 = 0xc9, - M_SOF10 = 0xca, - M_SOF11 = 0xcb, - - M_SOF13 = 0xcd, - M_SOF14 = 0xce, - M_SOF15 = 0xcf, - - M_DHT = 0xc4, - - M_DAC = 0xcc, - - M_RST0 = 0xd0, - M_RST1 = 0xd1, - M_RST2 = 0xd2, - M_RST3 = 0xd3, - M_RST4 = 0xd4, - M_RST5 = 0xd5, - M_RST6 = 0xd6, - M_RST7 = 0xd7, - - M_SOI = 0xd8, - M_EOI = 0xd9, - M_SOS = 0xda, - M_DQT = 0xdb, - M_DNL = 0xdc, - M_DRI = 0xdd, - M_DHP = 0xde, - M_EXP = 0xdf, - - M_APP0 = 0xe0, - M_APP1 = 0xe1, - M_APP2 = 0xe2, - M_APP3 = 0xe3, - M_APP4 = 0xe4, - M_APP5 = 0xe5, - M_APP6 = 0xe6, - M_APP7 = 0xe7, - M_APP8 = 0xe8, - M_APP9 = 0xe9, - M_APP10 = 0xea, - M_APP11 = 0xeb, - M_APP12 = 0xec, - M_APP13 = 0xed, - M_APP14 = 0xee, - M_APP15 = 0xef, - - M_JPG0 = 0xf0, - M_JPG13 = 0xfd, - M_COM = 0xfe, - - M_TEM = 0x01, - - M_ERROR = 0x100 -} JPEG_MARKER; - - -/* Private state */ - -typedef struct { - struct jpeg_marker_reader pub; /* public fields */ - - /* Application-overridable marker processing methods */ - jpeg_marker_parser_method process_COM; - jpeg_marker_parser_method process_APPn[16]; - - /* Limit on marker data length to save for each marker type */ - unsigned int length_limit_COM; - unsigned int length_limit_APPn[16]; - - /* Status of COM/APPn marker saving */ - jpeg_saved_marker_ptr cur_marker; /* NULL if not processing a marker */ - unsigned int bytes_read; /* data bytes read so far in marker */ - /* Note: cur_marker is not linked into marker_list until it's all read. */ -} my_marker_reader; - -typedef my_marker_reader * my_marker_ptr; - - -/* - * Macros for fetching data from the data source module. - * - * At all times, cinfo->src->next_input_byte and ->bytes_in_buffer reflect - * the current restart point; we update them only when we have reached a - * suitable place to restart if a suspension occurs. - */ - -/* Declare and initialize local copies of input pointer/count */ -#define INPUT_VARS(cinfo) \ - struct jpeg_source_mgr * datasrc = (cinfo)->src; \ - const JOCTET * next_input_byte = datasrc->next_input_byte; \ - size_t bytes_in_buffer = datasrc->bytes_in_buffer - -/* Unload the local copies --- do this only at a restart boundary */ -#define INPUT_SYNC(cinfo) \ - ( datasrc->next_input_byte = next_input_byte, \ - datasrc->bytes_in_buffer = bytes_in_buffer ) - -/* Reload the local copies --- used only in MAKE_BYTE_AVAIL */ -#define INPUT_RELOAD(cinfo) \ - ( next_input_byte = datasrc->next_input_byte, \ - bytes_in_buffer = datasrc->bytes_in_buffer ) - -/* Internal macro for INPUT_BYTE and INPUT_2BYTES: make a byte available. - * Note we do *not* do INPUT_SYNC before calling fill_input_buffer, - * but we must reload the local copies after a successful fill. - */ -#define MAKE_BYTE_AVAIL(cinfo,action) \ - if (bytes_in_buffer == 0) { \ - if (! (*datasrc->fill_input_buffer) (cinfo)) \ - { action; } \ - INPUT_RELOAD(cinfo); \ - } - -/* Read a byte into variable V. - * If must suspend, take the specified action (typically "return FALSE"). - */ -#define INPUT_BYTE(cinfo,V,action) \ - MAKESTMT( MAKE_BYTE_AVAIL(cinfo,action); \ - bytes_in_buffer--; \ - V = GETJOCTET(*next_input_byte++); ) - -/* As above, but read two bytes interpreted as an unsigned 16-bit integer. - * V should be declared unsigned int or perhaps INT32. - */ -#define INPUT_2BYTES(cinfo,V,action) \ - MAKESTMT( MAKE_BYTE_AVAIL(cinfo,action); \ - bytes_in_buffer--; \ - V = ((unsigned int) GETJOCTET(*next_input_byte++)) << 8; \ - MAKE_BYTE_AVAIL(cinfo,action); \ - bytes_in_buffer--; \ - V += GETJOCTET(*next_input_byte++); ) - - -/* - * Routines to process JPEG markers. - * - * Entry condition: JPEG marker itself has been read and its code saved - * in cinfo->unread_marker; input restart point is just after the marker. - * - * Exit: if return TRUE, have read and processed any parameters, and have - * updated the restart point to point after the parameters. - * If return FALSE, was forced to suspend before reaching end of - * marker parameters; restart point has not been moved. Same routine - * will be called again after application supplies more input data. - * - * This approach to suspension assumes that all of a marker's parameters - * can fit into a single input bufferload. This should hold for "normal" - * markers. Some COM/APPn markers might have large parameter segments - * that might not fit. If we are simply dropping such a marker, we use - * skip_input_data to get past it, and thereby put the problem on the - * source manager's shoulders. If we are saving the marker's contents - * into memory, we use a slightly different convention: when forced to - * suspend, the marker processor updates the restart point to the end of - * what it's consumed (ie, the end of the buffer) before returning FALSE. - * On resumption, cinfo->unread_marker still contains the marker code, - * but the data source will point to the next chunk of marker data. - * The marker processor must retain internal state to deal with this. - * - * Note that we don't bother to avoid duplicate trace messages if a - * suspension occurs within marker parameters. Other side effects - * require more care. - */ - - -LOCAL(boolean) -get_soi (j_decompress_ptr cinfo) -/* Process an SOI marker */ -{ - int i; - - TRACEMS(cinfo, 1, JTRC_SOI); - - if (cinfo->marker->saw_SOI) - ERREXIT(cinfo, JERR_SOI_DUPLICATE); - - /* Reset all parameters that are defined to be reset by SOI */ - - for (i = 0; i < NUM_ARITH_TBLS; i++) { - cinfo->arith_dc_L[i] = 0; - cinfo->arith_dc_U[i] = 1; - cinfo->arith_ac_K[i] = 5; - } - cinfo->restart_interval = 0; - - /* Set initial assumptions for colorspace etc */ - - cinfo->jpeg_color_space = JCS_UNKNOWN; - cinfo->CCIR601_sampling = FALSE; /* Assume non-CCIR sampling??? */ - - cinfo->saw_JFIF_marker = FALSE; - cinfo->JFIF_major_version = 1; /* set default JFIF APP0 values */ - cinfo->JFIF_minor_version = 1; - cinfo->density_unit = 0; - cinfo->X_density = 1; - cinfo->Y_density = 1; - cinfo->saw_Adobe_marker = FALSE; - cinfo->Adobe_transform = 0; - - cinfo->marker->saw_SOI = TRUE; - - return TRUE; -} - - -LOCAL(boolean) -get_sof (j_decompress_ptr cinfo, boolean is_baseline, boolean is_prog, - boolean is_arith) -/* Process a SOFn marker */ -{ - INT32 length; - int c, ci; - jpeg_component_info * compptr; - INPUT_VARS(cinfo); - - cinfo->is_baseline = is_baseline; - cinfo->progressive_mode = is_prog; - cinfo->arith_code = is_arith; - - INPUT_2BYTES(cinfo, length, return FALSE); - - INPUT_BYTE(cinfo, cinfo->data_precision, return FALSE); - INPUT_2BYTES(cinfo, cinfo->image_height, return FALSE); - INPUT_2BYTES(cinfo, cinfo->image_width, return FALSE); - INPUT_BYTE(cinfo, cinfo->num_components, return FALSE); - - length -= 8; - - TRACEMS4(cinfo, 1, JTRC_SOF, cinfo->unread_marker, - (int) cinfo->image_width, (int) cinfo->image_height, - cinfo->num_components); - - if (cinfo->marker->saw_SOF) - ERREXIT(cinfo, JERR_SOF_DUPLICATE); - - /* We don't support files in which the image height is initially specified */ - /* as 0 and is later redefined by DNL. As long as we have to check that, */ - /* might as well have a general sanity check. */ - if (cinfo->image_height <= 0 || cinfo->image_width <= 0 - || cinfo->num_components <= 0) - ERREXIT(cinfo, JERR_EMPTY_IMAGE); - - if (length != (cinfo->num_components * 3)) - ERREXIT(cinfo, JERR_BAD_LENGTH); - - if (cinfo->comp_info == NULL) /* do only once, even if suspend */ - cinfo->comp_info = (jpeg_component_info *) (*cinfo->mem->alloc_small) - ((j_common_ptr) cinfo, JPOOL_IMAGE, - cinfo->num_components * SIZEOF(jpeg_component_info)); - - for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components; - ci++, compptr++) { - compptr->component_index = ci; - INPUT_BYTE(cinfo, compptr->component_id, return FALSE); - INPUT_BYTE(cinfo, c, return FALSE); - compptr->h_samp_factor = (c >> 4) & 15; - compptr->v_samp_factor = (c ) & 15; - INPUT_BYTE(cinfo, compptr->quant_tbl_no, return FALSE); - - TRACEMS4(cinfo, 1, JTRC_SOF_COMPONENT, - compptr->component_id, compptr->h_samp_factor, - compptr->v_samp_factor, compptr->quant_tbl_no); - } - - cinfo->marker->saw_SOF = TRUE; - - INPUT_SYNC(cinfo); - return TRUE; -} - - -LOCAL(boolean) -get_sos (j_decompress_ptr cinfo) -/* Process a SOS marker */ -{ - INT32 length; - int i, ci, n, c, cc; - jpeg_component_info * compptr; - INPUT_VARS(cinfo); - - if (! cinfo->marker->saw_SOF) - ERREXIT(cinfo, JERR_SOS_NO_SOF); - - INPUT_2BYTES(cinfo, length, return FALSE); - - INPUT_BYTE(cinfo, n, return FALSE); /* Number of components */ - - TRACEMS1(cinfo, 1, JTRC_SOS, n); - - if (length != (n * 2 + 6) || n > MAX_COMPS_IN_SCAN || - (n == 0 && !cinfo->progressive_mode)) - /* pseudo SOS marker only allowed in progressive mode */ - ERREXIT(cinfo, JERR_BAD_LENGTH); - - cinfo->comps_in_scan = n; - - /* Collect the component-spec parameters */ - - for (i = 0; i < n; i++) { - INPUT_BYTE(cinfo, cc, return FALSE); - INPUT_BYTE(cinfo, c, return FALSE); - - for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components; - ci++, compptr++) { - if (cc == compptr->component_id) - goto id_found; - } - - ERREXIT1(cinfo, JERR_BAD_COMPONENT_ID, cc); - - id_found: - - cinfo->cur_comp_info[i] = compptr; - compptr->dc_tbl_no = (c >> 4) & 15; - compptr->ac_tbl_no = (c ) & 15; - - TRACEMS3(cinfo, 1, JTRC_SOS_COMPONENT, cc, - compptr->dc_tbl_no, compptr->ac_tbl_no); - } - - /* Collect the additional scan parameters Ss, Se, Ah/Al. */ - INPUT_BYTE(cinfo, c, return FALSE); - cinfo->Ss = c; - INPUT_BYTE(cinfo, c, return FALSE); - cinfo->Se = c; - INPUT_BYTE(cinfo, c, return FALSE); - cinfo->Ah = (c >> 4) & 15; - cinfo->Al = (c ) & 15; - - TRACEMS4(cinfo, 1, JTRC_SOS_PARAMS, cinfo->Ss, cinfo->Se, - cinfo->Ah, cinfo->Al); - - /* Prepare to scan data & restart markers */ - cinfo->marker->next_restart_num = 0; - - /* Count another (non-pseudo) SOS marker */ - if (n) cinfo->input_scan_number++; - - INPUT_SYNC(cinfo); - return TRUE; -} - - -#ifdef D_ARITH_CODING_SUPPORTED - -LOCAL(boolean) -get_dac (j_decompress_ptr cinfo) -/* Process a DAC marker */ -{ - INT32 length; - int index, val; - INPUT_VARS(cinfo); - - INPUT_2BYTES(cinfo, length, return FALSE); - length -= 2; - - while (length > 0) { - INPUT_BYTE(cinfo, index, return FALSE); - INPUT_BYTE(cinfo, val, return FALSE); - - length -= 2; - - TRACEMS2(cinfo, 1, JTRC_DAC, index, val); - - if (index < 0 || index >= (2*NUM_ARITH_TBLS)) - ERREXIT1(cinfo, JERR_DAC_INDEX, index); - - if (index >= NUM_ARITH_TBLS) { /* define AC table */ - cinfo->arith_ac_K[index-NUM_ARITH_TBLS] = (UINT8) val; - } else { /* define DC table */ - cinfo->arith_dc_L[index] = (UINT8) (val & 0x0F); - cinfo->arith_dc_U[index] = (UINT8) (val >> 4); - if (cinfo->arith_dc_L[index] > cinfo->arith_dc_U[index]) - ERREXIT1(cinfo, JERR_DAC_VALUE, val); - } - } - - if (length != 0) - ERREXIT(cinfo, JERR_BAD_LENGTH); - - INPUT_SYNC(cinfo); - return TRUE; -} - -#else /* ! D_ARITH_CODING_SUPPORTED */ - -#define get_dac(cinfo) skip_variable(cinfo) - -#endif /* D_ARITH_CODING_SUPPORTED */ - - -LOCAL(boolean) -get_dht (j_decompress_ptr cinfo) -/* Process a DHT marker */ -{ - INT32 length; - UINT8 bits[17]; - UINT8 huffval[256]; - int i, index, count; - JHUFF_TBL **htblptr; - INPUT_VARS(cinfo); - - INPUT_2BYTES(cinfo, length, return FALSE); - length -= 2; - - while (length > 16) { - INPUT_BYTE(cinfo, index, return FALSE); - - TRACEMS1(cinfo, 1, JTRC_DHT, index); - - bits[0] = 0; - count = 0; - for (i = 1; i <= 16; i++) { - INPUT_BYTE(cinfo, bits[i], return FALSE); - count += bits[i]; - } - - length -= 1 + 16; - - TRACEMS8(cinfo, 2, JTRC_HUFFBITS, - bits[1], bits[2], bits[3], bits[4], - bits[5], bits[6], bits[7], bits[8]); - TRACEMS8(cinfo, 2, JTRC_HUFFBITS, - bits[9], bits[10], bits[11], bits[12], - bits[13], bits[14], bits[15], bits[16]); - - /* Here we just do minimal validation of the counts to avoid walking - * off the end of our table space. jdhuff.c will check more carefully. - */ - if (count > 256 || ((INT32) count) > length) - ERREXIT(cinfo, JERR_BAD_HUFF_TABLE); - - for (i = 0; i < count; i++) - INPUT_BYTE(cinfo, huffval[i], return FALSE); - - length -= count; - - if (index & 0x10) { /* AC table definition */ - index -= 0x10; - htblptr = &cinfo->ac_huff_tbl_ptrs[index]; - } else { /* DC table definition */ - htblptr = &cinfo->dc_huff_tbl_ptrs[index]; - } - - if (index < 0 || index >= NUM_HUFF_TBLS) - ERREXIT1(cinfo, JERR_DHT_INDEX, index); - - if (*htblptr == NULL) - *htblptr = jpeg_alloc_huff_table((j_common_ptr) cinfo); - - MEMCOPY((*htblptr)->bits, bits, SIZEOF((*htblptr)->bits)); - MEMCOPY((*htblptr)->huffval, huffval, SIZEOF((*htblptr)->huffval)); - } - - if (length != 0) - ERREXIT(cinfo, JERR_BAD_LENGTH); - - INPUT_SYNC(cinfo); - return TRUE; -} - - -LOCAL(boolean) -get_dqt (j_decompress_ptr cinfo) -/* Process a DQT marker */ -{ - INT32 length, count, i; - int n, prec; - unsigned int tmp; - JQUANT_TBL *quant_ptr; - const int *natural_order; - INPUT_VARS(cinfo); - - INPUT_2BYTES(cinfo, length, return FALSE); - length -= 2; - - while (length > 0) { - length--; - INPUT_BYTE(cinfo, n, return FALSE); - prec = n >> 4; - n &= 0x0F; - - TRACEMS2(cinfo, 1, JTRC_DQT, n, prec); - - if (n >= NUM_QUANT_TBLS) - ERREXIT1(cinfo, JERR_DQT_INDEX, n); - - if (cinfo->quant_tbl_ptrs[n] == NULL) - cinfo->quant_tbl_ptrs[n] = jpeg_alloc_quant_table((j_common_ptr) cinfo); - quant_ptr = cinfo->quant_tbl_ptrs[n]; - - if (prec) { - if (length < DCTSIZE2 * 2) { - /* Initialize full table for safety. */ - for (i = 0; i < DCTSIZE2; i++) { - quant_ptr->quantval[i] = 1; - } - count = length >> 1; - } else - count = DCTSIZE2; - } else { - if (length < DCTSIZE2) { - /* Initialize full table for safety. */ - for (i = 0; i < DCTSIZE2; i++) { - quant_ptr->quantval[i] = 1; - } - count = length; - } else - count = DCTSIZE2; - } - - switch (count) { - case (2*2): natural_order = jpeg_natural_order2; break; - case (3*3): natural_order = jpeg_natural_order3; break; - case (4*4): natural_order = jpeg_natural_order4; break; - case (5*5): natural_order = jpeg_natural_order5; break; - case (6*6): natural_order = jpeg_natural_order6; break; - case (7*7): natural_order = jpeg_natural_order7; break; - default: natural_order = jpeg_natural_order; break; - } - - for (i = 0; i < count; i++) { - if (prec) - INPUT_2BYTES(cinfo, tmp, return FALSE); - else - INPUT_BYTE(cinfo, tmp, return FALSE); - /* We convert the zigzag-order table to natural array order. */ - quant_ptr->quantval[natural_order[i]] = (UINT16) tmp; - } - - if (cinfo->err->trace_level >= 2) { - for (i = 0; i < DCTSIZE2; i += 8) { - TRACEMS8(cinfo, 2, JTRC_QUANTVALS, - quant_ptr->quantval[i], quant_ptr->quantval[i+1], - quant_ptr->quantval[i+2], quant_ptr->quantval[i+3], - quant_ptr->quantval[i+4], quant_ptr->quantval[i+5], - quant_ptr->quantval[i+6], quant_ptr->quantval[i+7]); - } - } - - length -= count; - if (prec) length -= count; - } - - if (length != 0) - ERREXIT(cinfo, JERR_BAD_LENGTH); - - INPUT_SYNC(cinfo); - return TRUE; -} - - -LOCAL(boolean) -get_dri (j_decompress_ptr cinfo) -/* Process a DRI marker */ -{ - INT32 length; - unsigned int tmp; - INPUT_VARS(cinfo); - - INPUT_2BYTES(cinfo, length, return FALSE); - - if (length != 4) - ERREXIT(cinfo, JERR_BAD_LENGTH); - - INPUT_2BYTES(cinfo, tmp, return FALSE); - - TRACEMS1(cinfo, 1, JTRC_DRI, tmp); - - cinfo->restart_interval = tmp; - - INPUT_SYNC(cinfo); - return TRUE; -} - - -/* - * Routines for processing APPn and COM markers. - * These are either saved in memory or discarded, per application request. - * APP0 and APP14 are specially checked to see if they are - * JFIF and Adobe markers, respectively. - */ - -#define APP0_DATA_LEN 14 /* Length of interesting data in APP0 */ -#define APP14_DATA_LEN 12 /* Length of interesting data in APP14 */ -#define APPN_DATA_LEN 14 /* Must be the largest of the above!! */ - - -LOCAL(void) -examine_app0 (j_decompress_ptr cinfo, JOCTET FAR * data, - unsigned int datalen, INT32 remaining) -/* Examine first few bytes from an APP0. - * Take appropriate action if it is a JFIF marker. - * datalen is # of bytes at data[], remaining is length of rest of marker data. - */ -{ - INT32 totallen = (INT32) datalen + remaining; - - if (datalen >= APP0_DATA_LEN && - GETJOCTET(data[0]) == 0x4A && - GETJOCTET(data[1]) == 0x46 && - GETJOCTET(data[2]) == 0x49 && - GETJOCTET(data[3]) == 0x46 && - GETJOCTET(data[4]) == 0) { - /* Found JFIF APP0 marker: save info */ - cinfo->saw_JFIF_marker = TRUE; - cinfo->JFIF_major_version = GETJOCTET(data[5]); - cinfo->JFIF_minor_version = GETJOCTET(data[6]); - cinfo->density_unit = GETJOCTET(data[7]); - cinfo->X_density = (GETJOCTET(data[8]) << 8) + GETJOCTET(data[9]); - cinfo->Y_density = (GETJOCTET(data[10]) << 8) + GETJOCTET(data[11]); - /* Check version. - * Major version must be 1, anything else signals an incompatible change. - * (We used to treat this as an error, but now it's a nonfatal warning, - * because some bozo at Hijaak couldn't read the spec.) - * Minor version should be 0..2, but process anyway if newer. - */ - if (cinfo->JFIF_major_version != 1) - WARNMS2(cinfo, JWRN_JFIF_MAJOR, - cinfo->JFIF_major_version, cinfo->JFIF_minor_version); - /* Generate trace messages */ - TRACEMS5(cinfo, 1, JTRC_JFIF, - cinfo->JFIF_major_version, cinfo->JFIF_minor_version, - cinfo->X_density, cinfo->Y_density, cinfo->density_unit); - /* Validate thumbnail dimensions and issue appropriate messages */ - if (GETJOCTET(data[12]) | GETJOCTET(data[13])) - TRACEMS2(cinfo, 1, JTRC_JFIF_THUMBNAIL, - GETJOCTET(data[12]), GETJOCTET(data[13])); - totallen -= APP0_DATA_LEN; - if (totallen != - ((INT32)GETJOCTET(data[12]) * (INT32)GETJOCTET(data[13]) * (INT32) 3)) - TRACEMS1(cinfo, 1, JTRC_JFIF_BADTHUMBNAILSIZE, (int) totallen); - } else if (datalen >= 6 && - GETJOCTET(data[0]) == 0x4A && - GETJOCTET(data[1]) == 0x46 && - GETJOCTET(data[2]) == 0x58 && - GETJOCTET(data[3]) == 0x58 && - GETJOCTET(data[4]) == 0) { - /* Found JFIF "JFXX" extension APP0 marker */ - /* The library doesn't actually do anything with these, - * but we try to produce a helpful trace message. - */ - switch (GETJOCTET(data[5])) { - case 0x10: - TRACEMS1(cinfo, 1, JTRC_THUMB_JPEG, (int) totallen); - break; - case 0x11: - TRACEMS1(cinfo, 1, JTRC_THUMB_PALETTE, (int) totallen); - break; - case 0x13: - TRACEMS1(cinfo, 1, JTRC_THUMB_RGB, (int) totallen); - break; - default: - TRACEMS2(cinfo, 1, JTRC_JFIF_EXTENSION, - GETJOCTET(data[5]), (int) totallen); - break; - } - } else { - /* Start of APP0 does not match "JFIF" or "JFXX", or too short */ - TRACEMS1(cinfo, 1, JTRC_APP0, (int) totallen); - } -} - - -LOCAL(void) -examine_app14 (j_decompress_ptr cinfo, JOCTET FAR * data, - unsigned int datalen, INT32 remaining) -/* Examine first few bytes from an APP14. - * Take appropriate action if it is an Adobe marker. - * datalen is # of bytes at data[], remaining is length of rest of marker data. - */ -{ - unsigned int version, flags0, flags1, transform; - - if (datalen >= APP14_DATA_LEN && - GETJOCTET(data[0]) == 0x41 && - GETJOCTET(data[1]) == 0x64 && - GETJOCTET(data[2]) == 0x6F && - GETJOCTET(data[3]) == 0x62 && - GETJOCTET(data[4]) == 0x65) { - /* Found Adobe APP14 marker */ - version = (GETJOCTET(data[5]) << 8) + GETJOCTET(data[6]); - flags0 = (GETJOCTET(data[7]) << 8) + GETJOCTET(data[8]); - flags1 = (GETJOCTET(data[9]) << 8) + GETJOCTET(data[10]); - transform = GETJOCTET(data[11]); - TRACEMS4(cinfo, 1, JTRC_ADOBE, version, flags0, flags1, transform); - cinfo->saw_Adobe_marker = TRUE; - cinfo->Adobe_transform = (UINT8) transform; - } else { - /* Start of APP14 does not match "Adobe", or too short */ - TRACEMS1(cinfo, 1, JTRC_APP14, (int) (datalen + remaining)); - } -} - - -METHODDEF(boolean) -get_interesting_appn (j_decompress_ptr cinfo) -/* Process an APP0 or APP14 marker without saving it */ -{ - INT32 length; - JOCTET b[APPN_DATA_LEN]; - unsigned int i, numtoread; - INPUT_VARS(cinfo); - - INPUT_2BYTES(cinfo, length, return FALSE); - length -= 2; - - /* get the interesting part of the marker data */ - if (length >= APPN_DATA_LEN) - numtoread = APPN_DATA_LEN; - else if (length > 0) - numtoread = (unsigned int) length; - else - numtoread = 0; - for (i = 0; i < numtoread; i++) - INPUT_BYTE(cinfo, b[i], return FALSE); - length -= numtoread; - - /* process it */ - switch (cinfo->unread_marker) { - case M_APP0: - examine_app0(cinfo, (JOCTET FAR *) b, numtoread, length); - break; - case M_APP14: - examine_app14(cinfo, (JOCTET FAR *) b, numtoread, length); - break; - default: - /* can't get here unless jpeg_save_markers chooses wrong processor */ - ERREXIT1(cinfo, JERR_UNKNOWN_MARKER, cinfo->unread_marker); - break; - } - - /* skip any remaining data -- could be lots */ - INPUT_SYNC(cinfo); - if (length > 0) - (*cinfo->src->skip_input_data) (cinfo, (long) length); - - return TRUE; -} - - -#ifdef SAVE_MARKERS_SUPPORTED - -METHODDEF(boolean) -save_marker (j_decompress_ptr cinfo) -/* Save an APPn or COM marker into the marker list */ -{ - my_marker_ptr marker = (my_marker_ptr) cinfo->marker; - jpeg_saved_marker_ptr cur_marker = marker->cur_marker; - unsigned int bytes_read, data_length; - JOCTET FAR * data; - INT32 length = 0; - INPUT_VARS(cinfo); - - if (cur_marker == NULL) { - /* begin reading a marker */ - INPUT_2BYTES(cinfo, length, return FALSE); - length -= 2; - if (length >= 0) { /* watch out for bogus length word */ - /* figure out how much we want to save */ - unsigned int limit; - if (cinfo->unread_marker == (int) M_COM) - limit = marker->length_limit_COM; - else - limit = marker->length_limit_APPn[cinfo->unread_marker - (int) M_APP0]; - if ((unsigned int) length < limit) - limit = (unsigned int) length; - /* allocate and initialize the marker item */ - cur_marker = (jpeg_saved_marker_ptr) - (*cinfo->mem->alloc_large) ((j_common_ptr) cinfo, JPOOL_IMAGE, - SIZEOF(struct jpeg_marker_struct) + limit); - cur_marker->next = NULL; - cur_marker->marker = (UINT8) cinfo->unread_marker; - cur_marker->original_length = (unsigned int) length; - cur_marker->data_length = limit; - /* data area is just beyond the jpeg_marker_struct */ - data = cur_marker->data = (JOCTET FAR *) (cur_marker + 1); - marker->cur_marker = cur_marker; - marker->bytes_read = 0; - bytes_read = 0; - data_length = limit; - } else { - /* deal with bogus length word */ - bytes_read = data_length = 0; - data = NULL; - } - } else { - /* resume reading a marker */ - bytes_read = marker->bytes_read; - data_length = cur_marker->data_length; - data = cur_marker->data + bytes_read; - } - - while (bytes_read < data_length) { - INPUT_SYNC(cinfo); /* move the restart point to here */ - marker->bytes_read = bytes_read; - /* If there's not at least one byte in buffer, suspend */ - MAKE_BYTE_AVAIL(cinfo, return FALSE); - /* Copy bytes with reasonable rapidity */ - while (bytes_read < data_length && bytes_in_buffer > 0) { - *data++ = *next_input_byte++; - bytes_in_buffer--; - bytes_read++; - } - } - - /* Done reading what we want to read */ - if (cur_marker != NULL) { /* will be NULL if bogus length word */ - /* Add new marker to end of list */ - if (cinfo->marker_list == NULL) { - cinfo->marker_list = cur_marker; - } else { - jpeg_saved_marker_ptr prev = cinfo->marker_list; - while (prev->next != NULL) - prev = prev->next; - prev->next = cur_marker; - } - /* Reset pointer & calc remaining data length */ - data = cur_marker->data; - length = cur_marker->original_length - data_length; - } - /* Reset to initial state for next marker */ - marker->cur_marker = NULL; - - /* Process the marker if interesting; else just make a generic trace msg */ - switch (cinfo->unread_marker) { - case M_APP0: - examine_app0(cinfo, data, data_length, length); - break; - case M_APP14: - examine_app14(cinfo, data, data_length, length); - break; - default: - TRACEMS2(cinfo, 1, JTRC_MISC_MARKER, cinfo->unread_marker, - (int) (data_length + length)); - break; - } - - /* skip any remaining data -- could be lots */ - INPUT_SYNC(cinfo); /* do before skip_input_data */ - if (length > 0) - (*cinfo->src->skip_input_data) (cinfo, (long) length); - - return TRUE; -} - -#endif /* SAVE_MARKERS_SUPPORTED */ - - -METHODDEF(boolean) -skip_variable (j_decompress_ptr cinfo) -/* Skip over an unknown or uninteresting variable-length marker */ -{ - INT32 length; - INPUT_VARS(cinfo); - - INPUT_2BYTES(cinfo, length, return FALSE); - length -= 2; - - TRACEMS2(cinfo, 1, JTRC_MISC_MARKER, cinfo->unread_marker, (int) length); - - INPUT_SYNC(cinfo); /* do before skip_input_data */ - if (length > 0) - (*cinfo->src->skip_input_data) (cinfo, (long) length); - - return TRUE; -} - - -/* - * Find the next JPEG marker, save it in cinfo->unread_marker. - * Returns FALSE if had to suspend before reaching a marker; - * in that case cinfo->unread_marker is unchanged. - * - * Note that the result might not be a valid marker code, - * but it will never be 0 or FF. - */ - -LOCAL(boolean) -next_marker (j_decompress_ptr cinfo) -{ - int c; - INPUT_VARS(cinfo); - - for (;;) { - INPUT_BYTE(cinfo, c, return FALSE); - /* Skip any non-FF bytes. - * This may look a bit inefficient, but it will not occur in a valid file. - * We sync after each discarded byte so that a suspending data source - * can discard the byte from its buffer. - */ - while (c != 0xFF) { - cinfo->marker->discarded_bytes++; - INPUT_SYNC(cinfo); - INPUT_BYTE(cinfo, c, return FALSE); - } - /* This loop swallows any duplicate FF bytes. Extra FFs are legal as - * pad bytes, so don't count them in discarded_bytes. We assume there - * will not be so many consecutive FF bytes as to overflow a suspending - * data source's input buffer. - */ - do { - INPUT_BYTE(cinfo, c, return FALSE); - } while (c == 0xFF); - if (c != 0) - break; /* found a valid marker, exit loop */ - /* Reach here if we found a stuffed-zero data sequence (FF/00). - * Discard it and loop back to try again. - */ - cinfo->marker->discarded_bytes += 2; - INPUT_SYNC(cinfo); - } - - if (cinfo->marker->discarded_bytes != 0) { - WARNMS2(cinfo, JWRN_EXTRANEOUS_DATA, cinfo->marker->discarded_bytes, c); - cinfo->marker->discarded_bytes = 0; - } - - cinfo->unread_marker = c; - - INPUT_SYNC(cinfo); - return TRUE; -} - - -LOCAL(boolean) -first_marker (j_decompress_ptr cinfo) -/* Like next_marker, but used to obtain the initial SOI marker. */ -/* For this marker, we do not allow preceding garbage or fill; otherwise, - * we might well scan an entire input file before realizing it ain't JPEG. - * If an application wants to process non-JFIF files, it must seek to the - * SOI before calling the JPEG library. - */ -{ - int c, c2; - INPUT_VARS(cinfo); - - INPUT_BYTE(cinfo, c, return FALSE); - INPUT_BYTE(cinfo, c2, return FALSE); - if (c != 0xFF || c2 != (int) M_SOI) - ERREXIT2(cinfo, JERR_NO_SOI, c, c2); - - cinfo->unread_marker = c2; - - INPUT_SYNC(cinfo); - return TRUE; -} - - -/* - * Read markers until SOS or EOI. - * - * Returns same codes as are defined for jpeg_consume_input: - * JPEG_SUSPENDED, JPEG_REACHED_SOS, or JPEG_REACHED_EOI. - * - * Note: This function may return a pseudo SOS marker (with zero - * component number) for treat by input controller's consume_input. - * consume_input itself should filter out (skip) the pseudo marker - * after processing for the caller. - */ - -METHODDEF(int) -read_markers (j_decompress_ptr cinfo) -{ - /* Outer loop repeats once for each marker. */ - for (;;) { - /* Collect the marker proper, unless we already did. */ - /* NB: first_marker() enforces the requirement that SOI appear first. */ - if (cinfo->unread_marker == 0) { - if (! cinfo->marker->saw_SOI) { - if (! first_marker(cinfo)) - return JPEG_SUSPENDED; - } else { - if (! next_marker(cinfo)) - return JPEG_SUSPENDED; - } - } - /* At this point cinfo->unread_marker contains the marker code and the - * input point is just past the marker proper, but before any parameters. - * A suspension will cause us to return with this state still true. - */ - switch (cinfo->unread_marker) { - case M_SOI: - if (! get_soi(cinfo)) - return JPEG_SUSPENDED; - break; - - case M_SOF0: /* Baseline */ - if (! get_sof(cinfo, TRUE, FALSE, FALSE)) - return JPEG_SUSPENDED; - break; - - case M_SOF1: /* Extended sequential, Huffman */ - if (! get_sof(cinfo, FALSE, FALSE, FALSE)) - return JPEG_SUSPENDED; - break; - - case M_SOF2: /* Progressive, Huffman */ - if (! get_sof(cinfo, FALSE, TRUE, FALSE)) - return JPEG_SUSPENDED; - break; - - case M_SOF9: /* Extended sequential, arithmetic */ - if (! get_sof(cinfo, FALSE, FALSE, TRUE)) - return JPEG_SUSPENDED; - break; - - case M_SOF10: /* Progressive, arithmetic */ - if (! get_sof(cinfo, FALSE, TRUE, TRUE)) - return JPEG_SUSPENDED; - break; - - /* Currently unsupported SOFn types */ - case M_SOF3: /* Lossless, Huffman */ - case M_SOF5: /* Differential sequential, Huffman */ - case M_SOF6: /* Differential progressive, Huffman */ - case M_SOF7: /* Differential lossless, Huffman */ - case M_JPG: /* Reserved for JPEG extensions */ - case M_SOF11: /* Lossless, arithmetic */ - case M_SOF13: /* Differential sequential, arithmetic */ - case M_SOF14: /* Differential progressive, arithmetic */ - case M_SOF15: /* Differential lossless, arithmetic */ - ERREXIT1(cinfo, JERR_SOF_UNSUPPORTED, cinfo->unread_marker); - break; - - case M_SOS: - if (! get_sos(cinfo)) - return JPEG_SUSPENDED; - cinfo->unread_marker = 0; /* processed the marker */ - return JPEG_REACHED_SOS; - - case M_EOI: - TRACEMS(cinfo, 1, JTRC_EOI); - cinfo->unread_marker = 0; /* processed the marker */ - return JPEG_REACHED_EOI; - - case M_DAC: - if (! get_dac(cinfo)) - return JPEG_SUSPENDED; - break; - - case M_DHT: - if (! get_dht(cinfo)) - return JPEG_SUSPENDED; - break; - - case M_DQT: - if (! get_dqt(cinfo)) - return JPEG_SUSPENDED; - break; - - case M_DRI: - if (! get_dri(cinfo)) - return JPEG_SUSPENDED; - break; - - case M_APP0: - case M_APP1: - case M_APP2: - case M_APP3: - case M_APP4: - case M_APP5: - case M_APP6: - case M_APP7: - case M_APP8: - case M_APP9: - case M_APP10: - case M_APP11: - case M_APP12: - case M_APP13: - case M_APP14: - case M_APP15: - if (! (*((my_marker_ptr) cinfo->marker)->process_APPn[ - cinfo->unread_marker - (int) M_APP0]) (cinfo)) - return JPEG_SUSPENDED; - break; - - case M_COM: - if (! (*((my_marker_ptr) cinfo->marker)->process_COM) (cinfo)) - return JPEG_SUSPENDED; - break; - - case M_RST0: /* these are all parameterless */ - case M_RST1: - case M_RST2: - case M_RST3: - case M_RST4: - case M_RST5: - case M_RST6: - case M_RST7: - case M_TEM: - TRACEMS1(cinfo, 1, JTRC_PARMLESS_MARKER, cinfo->unread_marker); - break; - - case M_DNL: /* Ignore DNL ... perhaps the wrong thing */ - if (! skip_variable(cinfo)) - return JPEG_SUSPENDED; - break; - - default: /* must be DHP, EXP, JPGn, or RESn */ - /* For now, we treat the reserved markers as fatal errors since they are - * likely to be used to signal incompatible JPEG Part 3 extensions. - * Once the JPEG 3 version-number marker is well defined, this code - * ought to change! - */ - ERREXIT1(cinfo, JERR_UNKNOWN_MARKER, cinfo->unread_marker); - break; - } - /* Successfully processed marker, so reset state variable */ - cinfo->unread_marker = 0; - } /* end loop */ -} - - -/* - * Read a restart marker, which is expected to appear next in the datastream; - * if the marker is not there, take appropriate recovery action. - * Returns FALSE if suspension is required. - * - * This is called by the entropy decoder after it has read an appropriate - * number of MCUs. cinfo->unread_marker may be nonzero if the entropy decoder - * has already read a marker from the data source. Under normal conditions - * cinfo->unread_marker will be reset to 0 before returning; if not reset, - * it holds a marker which the decoder will be unable to read past. - */ - -METHODDEF(boolean) -read_restart_marker (j_decompress_ptr cinfo) -{ - /* Obtain a marker unless we already did. */ - /* Note that next_marker will complain if it skips any data. */ - if (cinfo->unread_marker == 0) { - if (! next_marker(cinfo)) - return FALSE; - } - - if (cinfo->unread_marker == - ((int) M_RST0 + cinfo->marker->next_restart_num)) { - /* Normal case --- swallow the marker and let entropy decoder continue */ - TRACEMS1(cinfo, 3, JTRC_RST, cinfo->marker->next_restart_num); - cinfo->unread_marker = 0; - } else { - /* Uh-oh, the restart markers have been messed up. */ - /* Let the data source manager determine how to resync. */ - if (! (*cinfo->src->resync_to_restart) (cinfo, - cinfo->marker->next_restart_num)) - return FALSE; - } - - /* Update next-restart state */ - cinfo->marker->next_restart_num = (cinfo->marker->next_restart_num + 1) & 7; - - return TRUE; -} - - -/* - * This is the default resync_to_restart method for data source managers - * to use if they don't have any better approach. Some data source managers - * may be able to back up, or may have additional knowledge about the data - * which permits a more intelligent recovery strategy; such managers would - * presumably supply their own resync method. - * - * read_restart_marker calls resync_to_restart if it finds a marker other than - * the restart marker it was expecting. (This code is *not* used unless - * a nonzero restart interval has been declared.) cinfo->unread_marker is - * the marker code actually found (might be anything, except 0 or FF). - * The desired restart marker number (0..7) is passed as a parameter. - * This routine is supposed to apply whatever error recovery strategy seems - * appropriate in order to position the input stream to the next data segment. - * Note that cinfo->unread_marker is treated as a marker appearing before - * the current data-source input point; usually it should be reset to zero - * before returning. - * Returns FALSE if suspension is required. - * - * This implementation is substantially constrained by wanting to treat the - * input as a data stream; this means we can't back up. Therefore, we have - * only the following actions to work with: - * 1. Simply discard the marker and let the entropy decoder resume at next - * byte of file. - * 2. Read forward until we find another marker, discarding intervening - * data. (In theory we could look ahead within the current bufferload, - * without having to discard data if we don't find the desired marker. - * This idea is not implemented here, in part because it makes behavior - * dependent on buffer size and chance buffer-boundary positions.) - * 3. Leave the marker unread (by failing to zero cinfo->unread_marker). - * This will cause the entropy decoder to process an empty data segment, - * inserting dummy zeroes, and then we will reprocess the marker. - * - * #2 is appropriate if we think the desired marker lies ahead, while #3 is - * appropriate if the found marker is a future restart marker (indicating - * that we have missed the desired restart marker, probably because it got - * corrupted). - * We apply #2 or #3 if the found marker is a restart marker no more than - * two counts behind or ahead of the expected one. We also apply #2 if the - * found marker is not a legal JPEG marker code (it's certainly bogus data). - * If the found marker is a restart marker more than 2 counts away, we do #1 - * (too much risk that the marker is erroneous; with luck we will be able to - * resync at some future point). - * For any valid non-restart JPEG marker, we apply #3. This keeps us from - * overrunning the end of a scan. An implementation limited to single-scan - * files might find it better to apply #2 for markers other than EOI, since - * any other marker would have to be bogus data in that case. - */ - -GLOBAL(boolean) -jpeg_resync_to_restart (j_decompress_ptr cinfo, int desired) -{ - int marker = cinfo->unread_marker; - int action = 1; - - /* Always put up a warning. */ - WARNMS2(cinfo, JWRN_MUST_RESYNC, marker, desired); - - /* Outer loop handles repeated decision after scanning forward. */ - for (;;) { - if (marker < (int) M_SOF0) - action = 2; /* invalid marker */ - else if (marker < (int) M_RST0 || marker > (int) M_RST7) - action = 3; /* valid non-restart marker */ - else { - if (marker == ((int) M_RST0 + ((desired+1) & 7)) || - marker == ((int) M_RST0 + ((desired+2) & 7))) - action = 3; /* one of the next two expected restarts */ - else if (marker == ((int) M_RST0 + ((desired-1) & 7)) || - marker == ((int) M_RST0 + ((desired-2) & 7))) - action = 2; /* a prior restart, so advance */ - else - action = 1; /* desired restart or too far away */ - } - TRACEMS2(cinfo, 4, JTRC_RECOVERY_ACTION, marker, action); - switch (action) { - case 1: - /* Discard marker and let entropy decoder resume processing. */ - cinfo->unread_marker = 0; - return TRUE; - case 2: - /* Scan to the next marker, and repeat the decision loop. */ - if (! next_marker(cinfo)) - return FALSE; - marker = cinfo->unread_marker; - break; - case 3: - /* Return without advancing past this marker. */ - /* Entropy decoder will be forced to process an empty segment. */ - return TRUE; - } - } /* end loop */ -} - - -/* - * Reset marker processing state to begin a fresh datastream. - */ - -METHODDEF(void) -reset_marker_reader (j_decompress_ptr cinfo) -{ - my_marker_ptr marker = (my_marker_ptr) cinfo->marker; - - cinfo->comp_info = NULL; /* until allocated by get_sof */ - cinfo->input_scan_number = 0; /* no SOS seen yet */ - cinfo->unread_marker = 0; /* no pending marker */ - marker->pub.saw_SOI = FALSE; /* set internal state too */ - marker->pub.saw_SOF = FALSE; - marker->pub.discarded_bytes = 0; - marker->cur_marker = NULL; -} - - -/* - * Initialize the marker reader module. - * This is called only once, when the decompression object is created. - */ - -GLOBAL(void) -jinit_marker_reader (j_decompress_ptr cinfo) -{ - my_marker_ptr marker; - int i; - - /* Create subobject in permanent pool */ - marker = (my_marker_ptr) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_PERMANENT, - SIZEOF(my_marker_reader)); - cinfo->marker = (struct jpeg_marker_reader *) marker; - /* Initialize public method pointers */ - marker->pub.reset_marker_reader = reset_marker_reader; - marker->pub.read_markers = read_markers; - marker->pub.read_restart_marker = read_restart_marker; - /* Initialize COM/APPn processing. - * By default, we examine and then discard APP0 and APP14, - * but simply discard COM and all other APPn. - */ - marker->process_COM = skip_variable; - marker->length_limit_COM = 0; - for (i = 0; i < 16; i++) { - marker->process_APPn[i] = skip_variable; - marker->length_limit_APPn[i] = 0; - } - marker->process_APPn[0] = get_interesting_appn; - marker->process_APPn[14] = get_interesting_appn; - /* Reset marker processing state */ - reset_marker_reader(cinfo); -} - - -/* - * Control saving of COM and APPn markers into marker_list. - */ - -#ifdef SAVE_MARKERS_SUPPORTED - -GLOBAL(void) -jpeg_save_markers (j_decompress_ptr cinfo, int marker_code, - unsigned int length_limit) -{ - my_marker_ptr marker = (my_marker_ptr) cinfo->marker; - long maxlength; - jpeg_marker_parser_method processor; - - /* Length limit mustn't be larger than what we can allocate - * (should only be a concern in a 16-bit environment). - */ - maxlength = cinfo->mem->max_alloc_chunk - SIZEOF(struct jpeg_marker_struct); - if (((long) length_limit) > maxlength) - length_limit = (unsigned int) maxlength; - - /* Choose processor routine to use. - * APP0/APP14 have special requirements. - */ - if (length_limit) { - processor = save_marker; - /* If saving APP0/APP14, save at least enough for our internal use. */ - if (marker_code == (int) M_APP0 && length_limit < APP0_DATA_LEN) - length_limit = APP0_DATA_LEN; - else if (marker_code == (int) M_APP14 && length_limit < APP14_DATA_LEN) - length_limit = APP14_DATA_LEN; - } else { - processor = skip_variable; - /* If discarding APP0/APP14, use our regular on-the-fly processor. */ - if (marker_code == (int) M_APP0 || marker_code == (int) M_APP14) - processor = get_interesting_appn; - } - - if (marker_code == (int) M_COM) { - marker->process_COM = processor; - marker->length_limit_COM = length_limit; - } else if (marker_code >= (int) M_APP0 && marker_code <= (int) M_APP15) { - marker->process_APPn[marker_code - (int) M_APP0] = processor; - marker->length_limit_APPn[marker_code - (int) M_APP0] = length_limit; - } else - ERREXIT1(cinfo, JERR_UNKNOWN_MARKER, marker_code); -} - -#endif /* SAVE_MARKERS_SUPPORTED */ - - -/* - * Install a special processing method for COM or APPn markers. - */ - -GLOBAL(void) -jpeg_set_marker_processor (j_decompress_ptr cinfo, int marker_code, - jpeg_marker_parser_method routine) -{ - my_marker_ptr marker = (my_marker_ptr) cinfo->marker; - - if (marker_code == (int) M_COM) - marker->process_COM = routine; - else if (marker_code >= (int) M_APP0 && marker_code <= (int) M_APP15) - marker->process_APPn[marker_code - (int) M_APP0] = routine; - else - ERREXIT1(cinfo, JERR_UNKNOWN_MARKER, marker_code); -} diff --git a/jpg/jdmaster.c b/jpg/jdmaster.c deleted file mode 100644 index fef72a2..0000000 --- a/jpg/jdmaster.c +++ /dev/null @@ -1,531 +0,0 @@ -/* - * jdmaster.c - * - * Copyright (C) 1991-1997, Thomas G. Lane. - * Modified 2002-2011 by Guido Vollbeding. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file contains master control logic for the JPEG decompressor. - * These routines are concerned with selecting the modules to be executed - * and with determining the number of passes and the work to be done in each - * pass. - */ - -#define JPEG_INTERNALS -#include "jinclude.h" -#include "jpeglib.h" - - -/* Private state */ - -typedef struct { - struct jpeg_decomp_master pub; /* public fields */ - - int pass_number; /* # of passes completed */ - - boolean using_merged_upsample; /* TRUE if using merged upsample/cconvert */ - - /* Saved references to initialized quantizer modules, - * in case we need to switch modes. - */ - struct jpeg_color_quantizer * quantizer_1pass; - struct jpeg_color_quantizer * quantizer_2pass; -} my_decomp_master; - -typedef my_decomp_master * my_master_ptr; - - -/* - * Determine whether merged upsample/color conversion should be used. - * CRUCIAL: this must match the actual capabilities of jdmerge.c! - */ - -LOCAL(boolean) -use_merged_upsample (j_decompress_ptr cinfo) -{ -#ifdef UPSAMPLE_MERGING_SUPPORTED - /* Merging is the equivalent of plain box-filter upsampling */ - if (cinfo->do_fancy_upsampling || cinfo->CCIR601_sampling) - return FALSE; - /* jdmerge.c only supports YCC=>RGB color conversion */ - if (cinfo->jpeg_color_space != JCS_YCbCr || cinfo->num_components != 3 || - cinfo->out_color_space != JCS_RGB || - cinfo->out_color_components != RGB_PIXELSIZE) - return FALSE; - /* and it only handles 2h1v or 2h2v sampling ratios */ - if (cinfo->comp_info[0].h_samp_factor != 2 || - cinfo->comp_info[1].h_samp_factor != 1 || - cinfo->comp_info[2].h_samp_factor != 1 || - cinfo->comp_info[0].v_samp_factor > 2 || - cinfo->comp_info[1].v_samp_factor != 1 || - cinfo->comp_info[2].v_samp_factor != 1) - return FALSE; - /* furthermore, it doesn't work if we've scaled the IDCTs differently */ - if (cinfo->comp_info[0].DCT_h_scaled_size != cinfo->min_DCT_h_scaled_size || - cinfo->comp_info[1].DCT_h_scaled_size != cinfo->min_DCT_h_scaled_size || - cinfo->comp_info[2].DCT_h_scaled_size != cinfo->min_DCT_h_scaled_size || - cinfo->comp_info[0].DCT_v_scaled_size != cinfo->min_DCT_v_scaled_size || - cinfo->comp_info[1].DCT_v_scaled_size != cinfo->min_DCT_v_scaled_size || - cinfo->comp_info[2].DCT_v_scaled_size != cinfo->min_DCT_v_scaled_size) - return FALSE; - /* ??? also need to test for upsample-time rescaling, when & if supported */ - return TRUE; /* by golly, it'll work... */ -#else - return FALSE; -#endif -} - - -/* - * Compute output image dimensions and related values. - * NOTE: this is exported for possible use by application. - * Hence it mustn't do anything that can't be done twice. - * Also note that it may be called before the master module is initialized! - */ - -GLOBAL(void) -jpeg_calc_output_dimensions (j_decompress_ptr cinfo) -/* Do computations that are needed before master selection phase. - * This function is used for full decompression. - */ -{ -#ifdef IDCT_SCALING_SUPPORTED - int ci; - jpeg_component_info *compptr; -#endif - - /* Prevent application from calling me at wrong times */ - if (cinfo->global_state != DSTATE_READY) - ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state); - - /* Compute core output image dimensions and DCT scaling choices. */ - jpeg_core_output_dimensions(cinfo); - -#ifdef IDCT_SCALING_SUPPORTED - - /* In selecting the actual DCT scaling for each component, we try to - * scale up the chroma components via IDCT scaling rather than upsampling. - * This saves time if the upsampler gets to use 1:1 scaling. - * Note this code adapts subsampling ratios which are powers of 2. - */ - for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components; - ci++, compptr++) { - int ssize = 1; - while (cinfo->min_DCT_h_scaled_size * ssize <= - (cinfo->do_fancy_upsampling ? DCTSIZE : DCTSIZE / 2) && - (cinfo->max_h_samp_factor % (compptr->h_samp_factor * ssize * 2)) == 0) { - ssize = ssize * 2; - } - compptr->DCT_h_scaled_size = cinfo->min_DCT_h_scaled_size * ssize; - ssize = 1; - while (cinfo->min_DCT_v_scaled_size * ssize <= - (cinfo->do_fancy_upsampling ? DCTSIZE : DCTSIZE / 2) && - (cinfo->max_v_samp_factor % (compptr->v_samp_factor * ssize * 2)) == 0) { - ssize = ssize * 2; - } - compptr->DCT_v_scaled_size = cinfo->min_DCT_v_scaled_size * ssize; - - /* We don't support IDCT ratios larger than 2. */ - if (compptr->DCT_h_scaled_size > compptr->DCT_v_scaled_size * 2) - compptr->DCT_h_scaled_size = compptr->DCT_v_scaled_size * 2; - else if (compptr->DCT_v_scaled_size > compptr->DCT_h_scaled_size * 2) - compptr->DCT_v_scaled_size = compptr->DCT_h_scaled_size * 2; - } - - /* Recompute downsampled dimensions of components; - * application needs to know these if using raw downsampled data. - */ - for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components; - ci++, compptr++) { - /* Size in samples, after IDCT scaling */ - compptr->downsampled_width = (JDIMENSION) - jdiv_round_up((long) cinfo->image_width * - (long) (compptr->h_samp_factor * compptr->DCT_h_scaled_size), - (long) (cinfo->max_h_samp_factor * cinfo->block_size)); - compptr->downsampled_height = (JDIMENSION) - jdiv_round_up((long) cinfo->image_height * - (long) (compptr->v_samp_factor * compptr->DCT_v_scaled_size), - (long) (cinfo->max_v_samp_factor * cinfo->block_size)); - } - -#endif /* IDCT_SCALING_SUPPORTED */ - - /* Report number of components in selected colorspace. */ - /* Probably this should be in the color conversion module... */ - switch (cinfo->out_color_space) { - case JCS_GRAYSCALE: - cinfo->out_color_components = 1; - break; - case JCS_RGB: - cinfo->out_color_components = RGB_PIXELSIZE; - break; - case JCS_YCbCr: - cinfo->out_color_components = 3; - break; - case JCS_CMYK: - case JCS_YCCK: - cinfo->out_color_components = 4; - break; - default: /* else must be same colorspace as in file */ - cinfo->out_color_components = cinfo->num_components; - break; - } - cinfo->output_components = (cinfo->quantize_colors ? 1 : - cinfo->out_color_components); - - /* See if upsampler will want to emit more than one row at a time */ - if (use_merged_upsample(cinfo)) - cinfo->rec_outbuf_height = cinfo->max_v_samp_factor; - else - cinfo->rec_outbuf_height = 1; -} - - -/* - * Several decompression processes need to range-limit values to the range - * 0..MAXJSAMPLE; the input value may fall somewhat outside this range - * due to noise introduced by quantization, roundoff error, etc. These - * processes are inner loops and need to be as fast as possible. On most - * machines, particularly CPUs with pipelines or instruction prefetch, - * a (subscript-check-less) C table lookup - * x = sample_range_limit[x]; - * is faster than explicit tests - * if (x < 0) x = 0; - * else if (x > MAXJSAMPLE) x = MAXJSAMPLE; - * These processes all use a common table prepared by the routine below. - * - * For most steps we can mathematically guarantee that the initial value - * of x is within MAXJSAMPLE+1 of the legal range, so a table running from - * -(MAXJSAMPLE+1) to 2*MAXJSAMPLE+1 is sufficient. But for the initial - * limiting step (just after the IDCT), a wildly out-of-range value is - * possible if the input data is corrupt. To avoid any chance of indexing - * off the end of memory and getting a bad-pointer trap, we perform the - * post-IDCT limiting thus: - * x = range_limit[x & MASK]; - * where MASK is 2 bits wider than legal sample data, ie 10 bits for 8-bit - * samples. Under normal circumstances this is more than enough range and - * a correct output will be generated; with bogus input data the mask will - * cause wraparound, and we will safely generate a bogus-but-in-range output. - * For the post-IDCT step, we want to convert the data from signed to unsigned - * representation by adding CENTERJSAMPLE at the same time that we limit it. - * So the post-IDCT limiting table ends up looking like this: - * CENTERJSAMPLE,CENTERJSAMPLE+1,...,MAXJSAMPLE, - * MAXJSAMPLE (repeat 2*(MAXJSAMPLE+1)-CENTERJSAMPLE times), - * 0 (repeat 2*(MAXJSAMPLE+1)-CENTERJSAMPLE times), - * 0,1,...,CENTERJSAMPLE-1 - * Negative inputs select values from the upper half of the table after - * masking. - * - * We can save some space by overlapping the start of the post-IDCT table - * with the simpler range limiting table. The post-IDCT table begins at - * sample_range_limit + CENTERJSAMPLE. - * - * Note that the table is allocated in near data space on PCs; it's small - * enough and used often enough to justify this. - */ - -LOCAL(void) -prepare_range_limit_table (j_decompress_ptr cinfo) -/* Allocate and fill in the sample_range_limit table */ -{ - JSAMPLE * table; - int i; - - table = (JSAMPLE *) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - (5 * (MAXJSAMPLE+1) + CENTERJSAMPLE) * SIZEOF(JSAMPLE)); - table += (MAXJSAMPLE+1); /* allow negative subscripts of simple table */ - cinfo->sample_range_limit = table; - /* First segment of "simple" table: limit[x] = 0 for x < 0 */ - MEMZERO(table - (MAXJSAMPLE+1), (MAXJSAMPLE+1) * SIZEOF(JSAMPLE)); - /* Main part of "simple" table: limit[x] = x */ - for (i = 0; i <= MAXJSAMPLE; i++) - table[i] = (JSAMPLE) i; - table += CENTERJSAMPLE; /* Point to where post-IDCT table starts */ - /* End of simple table, rest of first half of post-IDCT table */ - for (i = CENTERJSAMPLE; i < 2*(MAXJSAMPLE+1); i++) - table[i] = MAXJSAMPLE; - /* Second half of post-IDCT table */ - MEMZERO(table + (2 * (MAXJSAMPLE+1)), - (2 * (MAXJSAMPLE+1) - CENTERJSAMPLE) * SIZEOF(JSAMPLE)); - MEMCOPY(table + (4 * (MAXJSAMPLE+1) - CENTERJSAMPLE), - cinfo->sample_range_limit, CENTERJSAMPLE * SIZEOF(JSAMPLE)); -} - - -/* - * Master selection of decompression modules. - * This is done once at jpeg_start_decompress time. We determine - * which modules will be used and give them appropriate initialization calls. - * We also initialize the decompressor input side to begin consuming data. - * - * Since jpeg_read_header has finished, we know what is in the SOF - * and (first) SOS markers. We also have all the application parameter - * settings. - */ - -LOCAL(void) -master_selection (j_decompress_ptr cinfo) -{ - my_master_ptr master = (my_master_ptr) cinfo->master; - boolean use_c_buffer; - long samplesperrow; - JDIMENSION jd_samplesperrow; - - /* Initialize dimensions and other stuff */ - jpeg_calc_output_dimensions(cinfo); - prepare_range_limit_table(cinfo); - - /* Width of an output scanline must be representable as JDIMENSION. */ - samplesperrow = (long) cinfo->output_width * (long) cinfo->out_color_components; - jd_samplesperrow = (JDIMENSION) samplesperrow; - if ((long) jd_samplesperrow != samplesperrow) - ERREXIT(cinfo, JERR_WIDTH_OVERFLOW); - - /* Initialize my private state */ - master->pass_number = 0; - master->using_merged_upsample = use_merged_upsample(cinfo); - - /* Color quantizer selection */ - master->quantizer_1pass = NULL; - master->quantizer_2pass = NULL; - /* No mode changes if not using buffered-image mode. */ - if (! cinfo->quantize_colors || ! cinfo->buffered_image) { - cinfo->enable_1pass_quant = FALSE; - cinfo->enable_external_quant = FALSE; - cinfo->enable_2pass_quant = FALSE; - } - if (cinfo->quantize_colors) { - if (cinfo->raw_data_out) - ERREXIT(cinfo, JERR_NOTIMPL); - /* 2-pass quantizer only works in 3-component color space. */ - if (cinfo->out_color_components != 3) { - cinfo->enable_1pass_quant = TRUE; - cinfo->enable_external_quant = FALSE; - cinfo->enable_2pass_quant = FALSE; - cinfo->colormap = NULL; - } else if (cinfo->colormap != NULL) { - cinfo->enable_external_quant = TRUE; - } else if (cinfo->two_pass_quantize) { - cinfo->enable_2pass_quant = TRUE; - } else { - cinfo->enable_1pass_quant = TRUE; - } - - if (cinfo->enable_1pass_quant) { -#ifdef QUANT_1PASS_SUPPORTED - jinit_1pass_quantizer(cinfo); - master->quantizer_1pass = cinfo->cquantize; -#else - ERREXIT(cinfo, JERR_NOT_COMPILED); -#endif - } - - /* We use the 2-pass code to map to external colormaps. */ - if (cinfo->enable_2pass_quant || cinfo->enable_external_quant) { -#ifdef QUANT_2PASS_SUPPORTED - jinit_2pass_quantizer(cinfo); - master->quantizer_2pass = cinfo->cquantize; -#else - ERREXIT(cinfo, JERR_NOT_COMPILED); -#endif - } - /* If both quantizers are initialized, the 2-pass one is left active; - * this is necessary for starting with quantization to an external map. - */ - } - - /* Post-processing: in particular, color conversion first */ - if (! cinfo->raw_data_out) { - if (master->using_merged_upsample) { -#ifdef UPSAMPLE_MERGING_SUPPORTED - jinit_merged_upsampler(cinfo); /* does color conversion too */ -#else - ERREXIT(cinfo, JERR_NOT_COMPILED); -#endif - } else { - jinit_color_deconverter(cinfo); - jinit_upsampler(cinfo); - } - jinit_d_post_controller(cinfo, cinfo->enable_2pass_quant); - } - /* Inverse DCT */ - jinit_inverse_dct(cinfo); - /* Entropy decoding: either Huffman or arithmetic coding. */ - if (cinfo->arith_code) - jinit_arith_decoder(cinfo); - else { - jinit_huff_decoder(cinfo); - } - - /* Initialize principal buffer controllers. */ - use_c_buffer = cinfo->inputctl->has_multiple_scans || cinfo->buffered_image; - jinit_d_coef_controller(cinfo, use_c_buffer); - - if (! cinfo->raw_data_out) - jinit_d_main_controller(cinfo, FALSE /* never need full buffer here */); - - /* We can now tell the memory manager to allocate virtual arrays. */ - (*cinfo->mem->realize_virt_arrays) ((j_common_ptr) cinfo); - - /* Initialize input side of decompressor to consume first scan. */ - (*cinfo->inputctl->start_input_pass) (cinfo); - -#ifdef D_MULTISCAN_FILES_SUPPORTED - /* If jpeg_start_decompress will read the whole file, initialize - * progress monitoring appropriately. The input step is counted - * as one pass. - */ - if (cinfo->progress != NULL && ! cinfo->buffered_image && - cinfo->inputctl->has_multiple_scans) { - int nscans; - /* Estimate number of scans to set pass_limit. */ - if (cinfo->progressive_mode) { - /* Arbitrarily estimate 2 interleaved DC scans + 3 AC scans/component. */ - nscans = 2 + 3 * cinfo->num_components; - } else { - /* For a nonprogressive multiscan file, estimate 1 scan per component. */ - nscans = cinfo->num_components; - } - cinfo->progress->pass_counter = 0L; - cinfo->progress->pass_limit = (long) cinfo->total_iMCU_rows * nscans; - cinfo->progress->completed_passes = 0; - cinfo->progress->total_passes = (cinfo->enable_2pass_quant ? 3 : 2); - /* Count the input pass as done */ - master->pass_number++; - } -#endif /* D_MULTISCAN_FILES_SUPPORTED */ -} - - -/* - * Per-pass setup. - * This is called at the beginning of each output pass. We determine which - * modules will be active during this pass and give them appropriate - * start_pass calls. We also set is_dummy_pass to indicate whether this - * is a "real" output pass or a dummy pass for color quantization. - * (In the latter case, jdapistd.c will crank the pass to completion.) - */ - -METHODDEF(void) -prepare_for_output_pass (j_decompress_ptr cinfo) -{ - my_master_ptr master = (my_master_ptr) cinfo->master; - - if (master->pub.is_dummy_pass) { -#ifdef QUANT_2PASS_SUPPORTED - /* Final pass of 2-pass quantization */ - master->pub.is_dummy_pass = FALSE; - (*cinfo->cquantize->start_pass) (cinfo, FALSE); - (*cinfo->post->start_pass) (cinfo, JBUF_CRANK_DEST); - (*cinfo->main->start_pass) (cinfo, JBUF_CRANK_DEST); -#else - ERREXIT(cinfo, JERR_NOT_COMPILED); -#endif /* QUANT_2PASS_SUPPORTED */ - } else { - if (cinfo->quantize_colors && cinfo->colormap == NULL) { - /* Select new quantization method */ - if (cinfo->two_pass_quantize && cinfo->enable_2pass_quant) { - cinfo->cquantize = master->quantizer_2pass; - master->pub.is_dummy_pass = TRUE; - } else if (cinfo->enable_1pass_quant) { - cinfo->cquantize = master->quantizer_1pass; - } else { - ERREXIT(cinfo, JERR_MODE_CHANGE); - } - } - (*cinfo->idct->start_pass) (cinfo); - (*cinfo->coef->start_output_pass) (cinfo); - if (! cinfo->raw_data_out) { - if (! master->using_merged_upsample) - (*cinfo->cconvert->start_pass) (cinfo); - (*cinfo->upsample->start_pass) (cinfo); - if (cinfo->quantize_colors) - (*cinfo->cquantize->start_pass) (cinfo, master->pub.is_dummy_pass); - (*cinfo->post->start_pass) (cinfo, - (master->pub.is_dummy_pass ? JBUF_SAVE_AND_PASS : JBUF_PASS_THRU)); - (*cinfo->main->start_pass) (cinfo, JBUF_PASS_THRU); - } - } - - /* Set up progress monitor's pass info if present */ - if (cinfo->progress != NULL) { - cinfo->progress->completed_passes = master->pass_number; - cinfo->progress->total_passes = master->pass_number + - (master->pub.is_dummy_pass ? 2 : 1); - /* In buffered-image mode, we assume one more output pass if EOI not - * yet reached, but no more passes if EOI has been reached. - */ - if (cinfo->buffered_image && ! cinfo->inputctl->eoi_reached) { - cinfo->progress->total_passes += (cinfo->enable_2pass_quant ? 2 : 1); - } - } -} - - -/* - * Finish up at end of an output pass. - */ - -METHODDEF(void) -finish_output_pass (j_decompress_ptr cinfo) -{ - my_master_ptr master = (my_master_ptr) cinfo->master; - - if (cinfo->quantize_colors) - (*cinfo->cquantize->finish_pass) (cinfo); - master->pass_number++; -} - - -#ifdef D_MULTISCAN_FILES_SUPPORTED - -/* - * Switch to a new external colormap between output passes. - */ - -GLOBAL(void) -jpeg_new_colormap (j_decompress_ptr cinfo) -{ - my_master_ptr master = (my_master_ptr) cinfo->master; - - /* Prevent application from calling me at wrong times */ - if (cinfo->global_state != DSTATE_BUFIMAGE) - ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state); - - if (cinfo->quantize_colors && cinfo->enable_external_quant && - cinfo->colormap != NULL) { - /* Select 2-pass quantizer for external colormap use */ - cinfo->cquantize = master->quantizer_2pass; - /* Notify quantizer of colormap change */ - (*cinfo->cquantize->new_color_map) (cinfo); - master->pub.is_dummy_pass = FALSE; /* just in case */ - } else - ERREXIT(cinfo, JERR_MODE_CHANGE); -} - -#endif /* D_MULTISCAN_FILES_SUPPORTED */ - - -/* - * Initialize master decompression control and select active modules. - * This is performed at the start of jpeg_start_decompress. - */ - -GLOBAL(void) -jinit_master_decompress (j_decompress_ptr cinfo) -{ - my_master_ptr master; - - master = (my_master_ptr) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - SIZEOF(my_decomp_master)); - cinfo->master = (struct jpeg_decomp_master *) master; - master->pub.prepare_for_output_pass = prepare_for_output_pass; - master->pub.finish_output_pass = finish_output_pass; - - master->pub.is_dummy_pass = FALSE; - - master_selection(cinfo); -} diff --git a/jpg/jdmerge.c b/jpg/jdmerge.c deleted file mode 100644 index 3744446..0000000 --- a/jpg/jdmerge.c +++ /dev/null @@ -1,400 +0,0 @@ -/* - * jdmerge.c - * - * Copyright (C) 1994-1996, Thomas G. Lane. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file contains code for merged upsampling/color conversion. - * - * This file combines functions from jdsample.c and jdcolor.c; - * read those files first to understand what's going on. - * - * When the chroma components are to be upsampled by simple replication - * (ie, box filtering), we can save some work in color conversion by - * calculating all the output pixels corresponding to a pair of chroma - * samples at one time. In the conversion equations - * R = Y + K1 * Cr - * G = Y + K2 * Cb + K3 * Cr - * B = Y + K4 * Cb - * only the Y term varies among the group of pixels corresponding to a pair - * of chroma samples, so the rest of the terms can be calculated just once. - * At typical sampling ratios, this eliminates half or three-quarters of the - * multiplications needed for color conversion. - * - * This file currently provides implementations for the following cases: - * YCbCr => RGB color conversion only. - * Sampling ratios of 2h1v or 2h2v. - * No scaling needed at upsample time. - * Corner-aligned (non-CCIR601) sampling alignment. - * Other special cases could be added, but in most applications these are - * the only common cases. (For uncommon cases we fall back on the more - * general code in jdsample.c and jdcolor.c.) - */ - -#define JPEG_INTERNALS -#include "jinclude.h" -#include "jpeglib.h" - -#ifdef UPSAMPLE_MERGING_SUPPORTED - - -/* Private subobject */ - -typedef struct { - struct jpeg_upsampler pub; /* public fields */ - - /* Pointer to routine to do actual upsampling/conversion of one row group */ - JMETHOD(void, upmethod, (j_decompress_ptr cinfo, - JSAMPIMAGE input_buf, JDIMENSION in_row_group_ctr, - JSAMPARRAY output_buf)); - - /* Private state for YCC->RGB conversion */ - int * Cr_r_tab; /* => table for Cr to R conversion */ - int * Cb_b_tab; /* => table for Cb to B conversion */ - INT32 * Cr_g_tab; /* => table for Cr to G conversion */ - INT32 * Cb_g_tab; /* => table for Cb to G conversion */ - - /* For 2:1 vertical sampling, we produce two output rows at a time. - * We need a "spare" row buffer to hold the second output row if the - * application provides just a one-row buffer; we also use the spare - * to discard the dummy last row if the image height is odd. - */ - JSAMPROW spare_row; - boolean spare_full; /* T if spare buffer is occupied */ - - JDIMENSION out_row_width; /* samples per output row */ - JDIMENSION rows_to_go; /* counts rows remaining in image */ -} my_upsampler; - -typedef my_upsampler * my_upsample_ptr; - -#define SCALEBITS 16 /* speediest right-shift on some machines */ -#define ONE_HALF ((INT32) 1 << (SCALEBITS-1)) -#define FIX(x) ((INT32) ((x) * (1L<RGB colorspace conversion. - * This is taken directly from jdcolor.c; see that file for more info. - */ - -LOCAL(void) -build_ycc_rgb_table (j_decompress_ptr cinfo) -{ - my_upsample_ptr upsample = (my_upsample_ptr) cinfo->upsample; - int i; - INT32 x; - SHIFT_TEMPS - - upsample->Cr_r_tab = (int *) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - (MAXJSAMPLE+1) * SIZEOF(int)); - upsample->Cb_b_tab = (int *) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - (MAXJSAMPLE+1) * SIZEOF(int)); - upsample->Cr_g_tab = (INT32 *) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - (MAXJSAMPLE+1) * SIZEOF(INT32)); - upsample->Cb_g_tab = (INT32 *) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - (MAXJSAMPLE+1) * SIZEOF(INT32)); - - for (i = 0, x = -CENTERJSAMPLE; i <= MAXJSAMPLE; i++, x++) { - /* i is the actual input pixel value, in the range 0..MAXJSAMPLE */ - /* The Cb or Cr value we are thinking of is x = i - CENTERJSAMPLE */ - /* Cr=>R value is nearest int to 1.40200 * x */ - upsample->Cr_r_tab[i] = (int) - RIGHT_SHIFT(FIX(1.40200) * x + ONE_HALF, SCALEBITS); - /* Cb=>B value is nearest int to 1.77200 * x */ - upsample->Cb_b_tab[i] = (int) - RIGHT_SHIFT(FIX(1.77200) * x + ONE_HALF, SCALEBITS); - /* Cr=>G value is scaled-up -0.71414 * x */ - upsample->Cr_g_tab[i] = (- FIX(0.71414)) * x; - /* Cb=>G value is scaled-up -0.34414 * x */ - /* We also add in ONE_HALF so that need not do it in inner loop */ - upsample->Cb_g_tab[i] = (- FIX(0.34414)) * x + ONE_HALF; - } -} - - -/* - * Initialize for an upsampling pass. - */ - -METHODDEF(void) -start_pass_merged_upsample (j_decompress_ptr cinfo) -{ - my_upsample_ptr upsample = (my_upsample_ptr) cinfo->upsample; - - /* Mark the spare buffer empty */ - upsample->spare_full = FALSE; - /* Initialize total-height counter for detecting bottom of image */ - upsample->rows_to_go = cinfo->output_height; -} - - -/* - * Control routine to do upsampling (and color conversion). - * - * The control routine just handles the row buffering considerations. - */ - -METHODDEF(void) -merged_2v_upsample (j_decompress_ptr cinfo, - JSAMPIMAGE input_buf, JDIMENSION *in_row_group_ctr, - JDIMENSION in_row_groups_avail, - JSAMPARRAY output_buf, JDIMENSION *out_row_ctr, - JDIMENSION out_rows_avail) -/* 2:1 vertical sampling case: may need a spare row. */ -{ - my_upsample_ptr upsample = (my_upsample_ptr) cinfo->upsample; - JSAMPROW work_ptrs[2]; - JDIMENSION num_rows; /* number of rows returned to caller */ - - if (upsample->spare_full) { - /* If we have a spare row saved from a previous cycle, just return it. */ - jcopy_sample_rows(& upsample->spare_row, 0, output_buf + *out_row_ctr, 0, - 1, upsample->out_row_width); - num_rows = 1; - upsample->spare_full = FALSE; - } else { - /* Figure number of rows to return to caller. */ - num_rows = 2; - /* Not more than the distance to the end of the image. */ - if (num_rows > upsample->rows_to_go) - num_rows = upsample->rows_to_go; - /* And not more than what the client can accept: */ - out_rows_avail -= *out_row_ctr; - if (num_rows > out_rows_avail) - num_rows = out_rows_avail; - /* Create output pointer array for upsampler. */ - work_ptrs[0] = output_buf[*out_row_ctr]; - if (num_rows > 1) { - work_ptrs[1] = output_buf[*out_row_ctr + 1]; - } else { - work_ptrs[1] = upsample->spare_row; - upsample->spare_full = TRUE; - } - /* Now do the upsampling. */ - (*upsample->upmethod) (cinfo, input_buf, *in_row_group_ctr, work_ptrs); - } - - /* Adjust counts */ - *out_row_ctr += num_rows; - upsample->rows_to_go -= num_rows; - /* When the buffer is emptied, declare this input row group consumed */ - if (! upsample->spare_full) - (*in_row_group_ctr)++; -} - - -METHODDEF(void) -merged_1v_upsample (j_decompress_ptr cinfo, - JSAMPIMAGE input_buf, JDIMENSION *in_row_group_ctr, - JDIMENSION in_row_groups_avail, - JSAMPARRAY output_buf, JDIMENSION *out_row_ctr, - JDIMENSION out_rows_avail) -/* 1:1 vertical sampling case: much easier, never need a spare row. */ -{ - my_upsample_ptr upsample = (my_upsample_ptr) cinfo->upsample; - - /* Just do the upsampling. */ - (*upsample->upmethod) (cinfo, input_buf, *in_row_group_ctr, - output_buf + *out_row_ctr); - /* Adjust counts */ - (*out_row_ctr)++; - (*in_row_group_ctr)++; -} - - -/* - * These are the routines invoked by the control routines to do - * the actual upsampling/conversion. One row group is processed per call. - * - * Note: since we may be writing directly into application-supplied buffers, - * we have to be honest about the output width; we can't assume the buffer - * has been rounded up to an even width. - */ - - -/* - * Upsample and color convert for the case of 2:1 horizontal and 1:1 vertical. - */ - -METHODDEF(void) -h2v1_merged_upsample (j_decompress_ptr cinfo, - JSAMPIMAGE input_buf, JDIMENSION in_row_group_ctr, - JSAMPARRAY output_buf) -{ - my_upsample_ptr upsample = (my_upsample_ptr) cinfo->upsample; - register int y, cred, cgreen, cblue; - int cb, cr; - register JSAMPROW outptr; - JSAMPROW inptr0, inptr1, inptr2; - JDIMENSION col; - /* copy these pointers into registers if possible */ - register JSAMPLE * range_limit = cinfo->sample_range_limit; - int * Crrtab = upsample->Cr_r_tab; - int * Cbbtab = upsample->Cb_b_tab; - INT32 * Crgtab = upsample->Cr_g_tab; - INT32 * Cbgtab = upsample->Cb_g_tab; - SHIFT_TEMPS - - inptr0 = input_buf[0][in_row_group_ctr]; - inptr1 = input_buf[1][in_row_group_ctr]; - inptr2 = input_buf[2][in_row_group_ctr]; - outptr = output_buf[0]; - /* Loop for each pair of output pixels */ - for (col = cinfo->output_width >> 1; col > 0; col--) { - /* Do the chroma part of the calculation */ - cb = GETJSAMPLE(*inptr1++); - cr = GETJSAMPLE(*inptr2++); - cred = Crrtab[cr]; - cgreen = (int) RIGHT_SHIFT(Cbgtab[cb] + Crgtab[cr], SCALEBITS); - cblue = Cbbtab[cb]; - /* Fetch 2 Y values and emit 2 pixels */ - y = GETJSAMPLE(*inptr0++); - outptr[RGB_RED] = range_limit[y + cred]; - outptr[RGB_GREEN] = range_limit[y + cgreen]; - outptr[RGB_BLUE] = range_limit[y + cblue]; - outptr += RGB_PIXELSIZE; - y = GETJSAMPLE(*inptr0++); - outptr[RGB_RED] = range_limit[y + cred]; - outptr[RGB_GREEN] = range_limit[y + cgreen]; - outptr[RGB_BLUE] = range_limit[y + cblue]; - outptr += RGB_PIXELSIZE; - } - /* If image width is odd, do the last output column separately */ - if (cinfo->output_width & 1) { - cb = GETJSAMPLE(*inptr1); - cr = GETJSAMPLE(*inptr2); - cred = Crrtab[cr]; - cgreen = (int) RIGHT_SHIFT(Cbgtab[cb] + Crgtab[cr], SCALEBITS); - cblue = Cbbtab[cb]; - y = GETJSAMPLE(*inptr0); - outptr[RGB_RED] = range_limit[y + cred]; - outptr[RGB_GREEN] = range_limit[y + cgreen]; - outptr[RGB_BLUE] = range_limit[y + cblue]; - } -} - - -/* - * Upsample and color convert for the case of 2:1 horizontal and 2:1 vertical. - */ - -METHODDEF(void) -h2v2_merged_upsample (j_decompress_ptr cinfo, - JSAMPIMAGE input_buf, JDIMENSION in_row_group_ctr, - JSAMPARRAY output_buf) -{ - my_upsample_ptr upsample = (my_upsample_ptr) cinfo->upsample; - register int y, cred, cgreen, cblue; - int cb, cr; - register JSAMPROW outptr0, outptr1; - JSAMPROW inptr00, inptr01, inptr1, inptr2; - JDIMENSION col; - /* copy these pointers into registers if possible */ - register JSAMPLE * range_limit = cinfo->sample_range_limit; - int * Crrtab = upsample->Cr_r_tab; - int * Cbbtab = upsample->Cb_b_tab; - INT32 * Crgtab = upsample->Cr_g_tab; - INT32 * Cbgtab = upsample->Cb_g_tab; - SHIFT_TEMPS - - inptr00 = input_buf[0][in_row_group_ctr*2]; - inptr01 = input_buf[0][in_row_group_ctr*2 + 1]; - inptr1 = input_buf[1][in_row_group_ctr]; - inptr2 = input_buf[2][in_row_group_ctr]; - outptr0 = output_buf[0]; - outptr1 = output_buf[1]; - /* Loop for each group of output pixels */ - for (col = cinfo->output_width >> 1; col > 0; col--) { - /* Do the chroma part of the calculation */ - cb = GETJSAMPLE(*inptr1++); - cr = GETJSAMPLE(*inptr2++); - cred = Crrtab[cr]; - cgreen = (int) RIGHT_SHIFT(Cbgtab[cb] + Crgtab[cr], SCALEBITS); - cblue = Cbbtab[cb]; - /* Fetch 4 Y values and emit 4 pixels */ - y = GETJSAMPLE(*inptr00++); - outptr0[RGB_RED] = range_limit[y + cred]; - outptr0[RGB_GREEN] = range_limit[y + cgreen]; - outptr0[RGB_BLUE] = range_limit[y + cblue]; - outptr0 += RGB_PIXELSIZE; - y = GETJSAMPLE(*inptr00++); - outptr0[RGB_RED] = range_limit[y + cred]; - outptr0[RGB_GREEN] = range_limit[y + cgreen]; - outptr0[RGB_BLUE] = range_limit[y + cblue]; - outptr0 += RGB_PIXELSIZE; - y = GETJSAMPLE(*inptr01++); - outptr1[RGB_RED] = range_limit[y + cred]; - outptr1[RGB_GREEN] = range_limit[y + cgreen]; - outptr1[RGB_BLUE] = range_limit[y + cblue]; - outptr1 += RGB_PIXELSIZE; - y = GETJSAMPLE(*inptr01++); - outptr1[RGB_RED] = range_limit[y + cred]; - outptr1[RGB_GREEN] = range_limit[y + cgreen]; - outptr1[RGB_BLUE] = range_limit[y + cblue]; - outptr1 += RGB_PIXELSIZE; - } - /* If image width is odd, do the last output column separately */ - if (cinfo->output_width & 1) { - cb = GETJSAMPLE(*inptr1); - cr = GETJSAMPLE(*inptr2); - cred = Crrtab[cr]; - cgreen = (int) RIGHT_SHIFT(Cbgtab[cb] + Crgtab[cr], SCALEBITS); - cblue = Cbbtab[cb]; - y = GETJSAMPLE(*inptr00); - outptr0[RGB_RED] = range_limit[y + cred]; - outptr0[RGB_GREEN] = range_limit[y + cgreen]; - outptr0[RGB_BLUE] = range_limit[y + cblue]; - y = GETJSAMPLE(*inptr01); - outptr1[RGB_RED] = range_limit[y + cred]; - outptr1[RGB_GREEN] = range_limit[y + cgreen]; - outptr1[RGB_BLUE] = range_limit[y + cblue]; - } -} - - -/* - * Module initialization routine for merged upsampling/color conversion. - * - * NB: this is called under the conditions determined by use_merged_upsample() - * in jdmaster.c. That routine MUST correspond to the actual capabilities - * of this module; no safety checks are made here. - */ - -GLOBAL(void) -jinit_merged_upsampler (j_decompress_ptr cinfo) -{ - my_upsample_ptr upsample; - - upsample = (my_upsample_ptr) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - SIZEOF(my_upsampler)); - cinfo->upsample = (struct jpeg_upsampler *) upsample; - upsample->pub.start_pass = start_pass_merged_upsample; - upsample->pub.need_context_rows = FALSE; - - upsample->out_row_width = cinfo->output_width * cinfo->out_color_components; - - if (cinfo->max_v_samp_factor == 2) { - upsample->pub.upsample = merged_2v_upsample; - upsample->upmethod = h2v2_merged_upsample; - /* Allocate a spare row buffer */ - upsample->spare_row = (JSAMPROW) - (*cinfo->mem->alloc_large) ((j_common_ptr) cinfo, JPOOL_IMAGE, - (size_t) (upsample->out_row_width * SIZEOF(JSAMPLE))); - } else { - upsample->pub.upsample = merged_1v_upsample; - upsample->upmethod = h2v1_merged_upsample; - /* No spare row needed */ - upsample->spare_row = NULL; - } - - build_ycc_rgb_table(cinfo); -} - -#endif /* UPSAMPLE_MERGING_SUPPORTED */ diff --git a/jpg/jdosaobj.txt b/jpg/jdosaobj.txt deleted file mode 100644 index 4318362..0000000 --- a/jpg/jdosaobj.txt +++ /dev/null @@ -1,16 +0,0 @@ -This archive contains already-assembled object files for JMEMDOSA.ASM -of the Independent JPEG Group's JPEG package. These files will be helpful -if you want to compile the IJG code for DOS, but don't have an assembler. - -These files were prepared from the 3/13/1992 version of JMEMDOSA.ASM, -which is still unchanged as of mid-1998. You can use these files with -releases 3 through 6 of the IJG code, and probably future releases too. - -To use these files, copy the proper version to JMEMDOSA.OBJ. Make sure -this file has a newer date than JMEMDOSA.ASM. Then compile the code as -usual. - -Object files included: - -JDOSAMSC.OBJ For Microsoft C version 5 or later. -JDOSABCC.OBJ For Borland C version 3.0 or later. diff --git a/jpg/jdpostct.c b/jpg/jdpostct.c deleted file mode 100644 index 571563d..0000000 --- a/jpg/jdpostct.c +++ /dev/null @@ -1,290 +0,0 @@ -/* - * jdpostct.c - * - * Copyright (C) 1994-1996, Thomas G. Lane. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file contains the decompression postprocessing controller. - * This controller manages the upsampling, color conversion, and color - * quantization/reduction steps; specifically, it controls the buffering - * between upsample/color conversion and color quantization/reduction. - * - * If no color quantization/reduction is required, then this module has no - * work to do, and it just hands off to the upsample/color conversion code. - * An integrated upsample/convert/quantize process would replace this module - * entirely. - */ - -#define JPEG_INTERNALS -#include "jinclude.h" -#include "jpeglib.h" - - -/* Private buffer controller object */ - -typedef struct { - struct jpeg_d_post_controller pub; /* public fields */ - - /* Color quantization source buffer: this holds output data from - * the upsample/color conversion step to be passed to the quantizer. - * For two-pass color quantization, we need a full-image buffer; - * for one-pass operation, a strip buffer is sufficient. - */ - jvirt_sarray_ptr whole_image; /* virtual array, or NULL if one-pass */ - JSAMPARRAY buffer; /* strip buffer, or current strip of virtual */ - JDIMENSION strip_height; /* buffer size in rows */ - /* for two-pass mode only: */ - JDIMENSION starting_row; /* row # of first row in current strip */ - JDIMENSION next_row; /* index of next row to fill/empty in strip */ -} my_post_controller; - -typedef my_post_controller * my_post_ptr; - - -/* Forward declarations */ -METHODDEF(void) post_process_1pass - JPP((j_decompress_ptr cinfo, - JSAMPIMAGE input_buf, JDIMENSION *in_row_group_ctr, - JDIMENSION in_row_groups_avail, - JSAMPARRAY output_buf, JDIMENSION *out_row_ctr, - JDIMENSION out_rows_avail)); -#ifdef QUANT_2PASS_SUPPORTED -METHODDEF(void) post_process_prepass - JPP((j_decompress_ptr cinfo, - JSAMPIMAGE input_buf, JDIMENSION *in_row_group_ctr, - JDIMENSION in_row_groups_avail, - JSAMPARRAY output_buf, JDIMENSION *out_row_ctr, - JDIMENSION out_rows_avail)); -METHODDEF(void) post_process_2pass - JPP((j_decompress_ptr cinfo, - JSAMPIMAGE input_buf, JDIMENSION *in_row_group_ctr, - JDIMENSION in_row_groups_avail, - JSAMPARRAY output_buf, JDIMENSION *out_row_ctr, - JDIMENSION out_rows_avail)); -#endif - - -/* - * Initialize for a processing pass. - */ - -METHODDEF(void) -start_pass_dpost (j_decompress_ptr cinfo, J_BUF_MODE pass_mode) -{ - my_post_ptr post = (my_post_ptr) cinfo->post; - - switch (pass_mode) { - case JBUF_PASS_THRU: - if (cinfo->quantize_colors) { - /* Single-pass processing with color quantization. */ - post->pub.post_process_data = post_process_1pass; - /* We could be doing buffered-image output before starting a 2-pass - * color quantization; in that case, jinit_d_post_controller did not - * allocate a strip buffer. Use the virtual-array buffer as workspace. - */ - if (post->buffer == NULL) { - post->buffer = (*cinfo->mem->access_virt_sarray) - ((j_common_ptr) cinfo, post->whole_image, - (JDIMENSION) 0, post->strip_height, TRUE); - } - } else { - /* For single-pass processing without color quantization, - * I have no work to do; just call the upsampler directly. - */ - post->pub.post_process_data = cinfo->upsample->upsample; - } - break; -#ifdef QUANT_2PASS_SUPPORTED - case JBUF_SAVE_AND_PASS: - /* First pass of 2-pass quantization */ - if (post->whole_image == NULL) - ERREXIT(cinfo, JERR_BAD_BUFFER_MODE); - post->pub.post_process_data = post_process_prepass; - break; - case JBUF_CRANK_DEST: - /* Second pass of 2-pass quantization */ - if (post->whole_image == NULL) - ERREXIT(cinfo, JERR_BAD_BUFFER_MODE); - post->pub.post_process_data = post_process_2pass; - break; -#endif /* QUANT_2PASS_SUPPORTED */ - default: - ERREXIT(cinfo, JERR_BAD_BUFFER_MODE); - break; - } - post->starting_row = post->next_row = 0; -} - - -/* - * Process some data in the one-pass (strip buffer) case. - * This is used for color precision reduction as well as one-pass quantization. - */ - -METHODDEF(void) -post_process_1pass (j_decompress_ptr cinfo, - JSAMPIMAGE input_buf, JDIMENSION *in_row_group_ctr, - JDIMENSION in_row_groups_avail, - JSAMPARRAY output_buf, JDIMENSION *out_row_ctr, - JDIMENSION out_rows_avail) -{ - my_post_ptr post = (my_post_ptr) cinfo->post; - JDIMENSION num_rows, max_rows; - - /* Fill the buffer, but not more than what we can dump out in one go. */ - /* Note we rely on the upsampler to detect bottom of image. */ - max_rows = out_rows_avail - *out_row_ctr; - if (max_rows > post->strip_height) - max_rows = post->strip_height; - num_rows = 0; - (*cinfo->upsample->upsample) (cinfo, - input_buf, in_row_group_ctr, in_row_groups_avail, - post->buffer, &num_rows, max_rows); - /* Quantize and emit data. */ - (*cinfo->cquantize->color_quantize) (cinfo, - post->buffer, output_buf + *out_row_ctr, (int) num_rows); - *out_row_ctr += num_rows; -} - - -#ifdef QUANT_2PASS_SUPPORTED - -/* - * Process some data in the first pass of 2-pass quantization. - */ - -METHODDEF(void) -post_process_prepass (j_decompress_ptr cinfo, - JSAMPIMAGE input_buf, JDIMENSION *in_row_group_ctr, - JDIMENSION in_row_groups_avail, - JSAMPARRAY output_buf, JDIMENSION *out_row_ctr, - JDIMENSION out_rows_avail) -{ - my_post_ptr post = (my_post_ptr) cinfo->post; - JDIMENSION old_next_row, num_rows; - - /* Reposition virtual buffer if at start of strip. */ - if (post->next_row == 0) { - post->buffer = (*cinfo->mem->access_virt_sarray) - ((j_common_ptr) cinfo, post->whole_image, - post->starting_row, post->strip_height, TRUE); - } - - /* Upsample some data (up to a strip height's worth). */ - old_next_row = post->next_row; - (*cinfo->upsample->upsample) (cinfo, - input_buf, in_row_group_ctr, in_row_groups_avail, - post->buffer, &post->next_row, post->strip_height); - - /* Allow quantizer to scan new data. No data is emitted, */ - /* but we advance out_row_ctr so outer loop can tell when we're done. */ - if (post->next_row > old_next_row) { - num_rows = post->next_row - old_next_row; - (*cinfo->cquantize->color_quantize) (cinfo, post->buffer + old_next_row, - (JSAMPARRAY) NULL, (int) num_rows); - *out_row_ctr += num_rows; - } - - /* Advance if we filled the strip. */ - if (post->next_row >= post->strip_height) { - post->starting_row += post->strip_height; - post->next_row = 0; - } -} - - -/* - * Process some data in the second pass of 2-pass quantization. - */ - -METHODDEF(void) -post_process_2pass (j_decompress_ptr cinfo, - JSAMPIMAGE input_buf, JDIMENSION *in_row_group_ctr, - JDIMENSION in_row_groups_avail, - JSAMPARRAY output_buf, JDIMENSION *out_row_ctr, - JDIMENSION out_rows_avail) -{ - my_post_ptr post = (my_post_ptr) cinfo->post; - JDIMENSION num_rows, max_rows; - - /* Reposition virtual buffer if at start of strip. */ - if (post->next_row == 0) { - post->buffer = (*cinfo->mem->access_virt_sarray) - ((j_common_ptr) cinfo, post->whole_image, - post->starting_row, post->strip_height, FALSE); - } - - /* Determine number of rows to emit. */ - num_rows = post->strip_height - post->next_row; /* available in strip */ - max_rows = out_rows_avail - *out_row_ctr; /* available in output area */ - if (num_rows > max_rows) - num_rows = max_rows; - /* We have to check bottom of image here, can't depend on upsampler. */ - max_rows = cinfo->output_height - post->starting_row; - if (num_rows > max_rows) - num_rows = max_rows; - - /* Quantize and emit data. */ - (*cinfo->cquantize->color_quantize) (cinfo, - post->buffer + post->next_row, output_buf + *out_row_ctr, - (int) num_rows); - *out_row_ctr += num_rows; - - /* Advance if we filled the strip. */ - post->next_row += num_rows; - if (post->next_row >= post->strip_height) { - post->starting_row += post->strip_height; - post->next_row = 0; - } -} - -#endif /* QUANT_2PASS_SUPPORTED */ - - -/* - * Initialize postprocessing controller. - */ - -GLOBAL(void) -jinit_d_post_controller (j_decompress_ptr cinfo, boolean need_full_buffer) -{ - my_post_ptr post; - - post = (my_post_ptr) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - SIZEOF(my_post_controller)); - cinfo->post = (struct jpeg_d_post_controller *) post; - post->pub.start_pass = start_pass_dpost; - post->whole_image = NULL; /* flag for no virtual arrays */ - post->buffer = NULL; /* flag for no strip buffer */ - - /* Create the quantization buffer, if needed */ - if (cinfo->quantize_colors) { - /* The buffer strip height is max_v_samp_factor, which is typically - * an efficient number of rows for upsampling to return. - * (In the presence of output rescaling, we might want to be smarter?) - */ - post->strip_height = (JDIMENSION) cinfo->max_v_samp_factor; - if (need_full_buffer) { - /* Two-pass color quantization: need full-image storage. */ - /* We round up the number of rows to a multiple of the strip height. */ -#ifdef QUANT_2PASS_SUPPORTED - post->whole_image = (*cinfo->mem->request_virt_sarray) - ((j_common_ptr) cinfo, JPOOL_IMAGE, FALSE, - cinfo->output_width * cinfo->out_color_components, - (JDIMENSION) jround_up((long) cinfo->output_height, - (long) post->strip_height), - post->strip_height); -#else - ERREXIT(cinfo, JERR_BAD_BUFFER_MODE); -#endif /* QUANT_2PASS_SUPPORTED */ - } else { - /* One-pass color quantization: just make a strip buffer. */ - post->buffer = (*cinfo->mem->alloc_sarray) - ((j_common_ptr) cinfo, JPOOL_IMAGE, - cinfo->output_width * cinfo->out_color_components, - post->strip_height); - } - } -} diff --git a/jpg/jdsample.c b/jpg/jdsample.c deleted file mode 100644 index 7bc8885..0000000 --- a/jpg/jdsample.c +++ /dev/null @@ -1,361 +0,0 @@ -/* - * jdsample.c - * - * Copyright (C) 1991-1996, Thomas G. Lane. - * Modified 2002-2008 by Guido Vollbeding. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file contains upsampling routines. - * - * Upsampling input data is counted in "row groups". A row group - * is defined to be (v_samp_factor * DCT_v_scaled_size / min_DCT_v_scaled_size) - * sample rows of each component. Upsampling will normally produce - * max_v_samp_factor pixel rows from each row group (but this could vary - * if the upsampler is applying a scale factor of its own). - * - * An excellent reference for image resampling is - * Digital Image Warping, George Wolberg, 1990. - * Pub. by IEEE Computer Society Press, Los Alamitos, CA. ISBN 0-8186-8944-7. - */ - -#define JPEG_INTERNALS -#include "jinclude.h" -#include "jpeglib.h" - - -/* Pointer to routine to upsample a single component */ -typedef JMETHOD(void, upsample1_ptr, - (j_decompress_ptr cinfo, jpeg_component_info * compptr, - JSAMPARRAY input_data, JSAMPARRAY * output_data_ptr)); - -/* Private subobject */ - -typedef struct { - struct jpeg_upsampler pub; /* public fields */ - - /* Color conversion buffer. When using separate upsampling and color - * conversion steps, this buffer holds one upsampled row group until it - * has been color converted and output. - * Note: we do not allocate any storage for component(s) which are full-size, - * ie do not need rescaling. The corresponding entry of color_buf[] is - * simply set to point to the input data array, thereby avoiding copying. - */ - JSAMPARRAY color_buf[MAX_COMPONENTS]; - - /* Per-component upsampling method pointers */ - upsample1_ptr methods[MAX_COMPONENTS]; - - int next_row_out; /* counts rows emitted from color_buf */ - JDIMENSION rows_to_go; /* counts rows remaining in image */ - - /* Height of an input row group for each component. */ - int rowgroup_height[MAX_COMPONENTS]; - - /* These arrays save pixel expansion factors so that int_expand need not - * recompute them each time. They are unused for other upsampling methods. - */ - UINT8 h_expand[MAX_COMPONENTS]; - UINT8 v_expand[MAX_COMPONENTS]; -} my_upsampler; - -typedef my_upsampler * my_upsample_ptr; - - -/* - * Initialize for an upsampling pass. - */ - -METHODDEF(void) -start_pass_upsample (j_decompress_ptr cinfo) -{ - my_upsample_ptr upsample = (my_upsample_ptr) cinfo->upsample; - - /* Mark the conversion buffer empty */ - upsample->next_row_out = cinfo->max_v_samp_factor; - /* Initialize total-height counter for detecting bottom of image */ - upsample->rows_to_go = cinfo->output_height; -} - - -/* - * Control routine to do upsampling (and color conversion). - * - * In this version we upsample each component independently. - * We upsample one row group into the conversion buffer, then apply - * color conversion a row at a time. - */ - -METHODDEF(void) -sep_upsample (j_decompress_ptr cinfo, - JSAMPIMAGE input_buf, JDIMENSION *in_row_group_ctr, - JDIMENSION in_row_groups_avail, - JSAMPARRAY output_buf, JDIMENSION *out_row_ctr, - JDIMENSION out_rows_avail) -{ - my_upsample_ptr upsample = (my_upsample_ptr) cinfo->upsample; - int ci; - jpeg_component_info * compptr; - JDIMENSION num_rows; - - /* Fill the conversion buffer, if it's empty */ - if (upsample->next_row_out >= cinfo->max_v_samp_factor) { - for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components; - ci++, compptr++) { - /* Invoke per-component upsample method. Notice we pass a POINTER - * to color_buf[ci], so that fullsize_upsample can change it. - */ - (*upsample->methods[ci]) (cinfo, compptr, - input_buf[ci] + (*in_row_group_ctr * upsample->rowgroup_height[ci]), - upsample->color_buf + ci); - } - upsample->next_row_out = 0; - } - - /* Color-convert and emit rows */ - - /* How many we have in the buffer: */ - num_rows = (JDIMENSION) (cinfo->max_v_samp_factor - upsample->next_row_out); - /* Not more than the distance to the end of the image. Need this test - * in case the image height is not a multiple of max_v_samp_factor: - */ - if (num_rows > upsample->rows_to_go) - num_rows = upsample->rows_to_go; - /* And not more than what the client can accept: */ - out_rows_avail -= *out_row_ctr; - if (num_rows > out_rows_avail) - num_rows = out_rows_avail; - - (*cinfo->cconvert->color_convert) (cinfo, upsample->color_buf, - (JDIMENSION) upsample->next_row_out, - output_buf + *out_row_ctr, - (int) num_rows); - - /* Adjust counts */ - *out_row_ctr += num_rows; - upsample->rows_to_go -= num_rows; - upsample->next_row_out += num_rows; - /* When the buffer is emptied, declare this input row group consumed */ - if (upsample->next_row_out >= cinfo->max_v_samp_factor) - (*in_row_group_ctr)++; -} - - -/* - * These are the routines invoked by sep_upsample to upsample pixel values - * of a single component. One row group is processed per call. - */ - - -/* - * For full-size components, we just make color_buf[ci] point at the - * input buffer, and thus avoid copying any data. Note that this is - * safe only because sep_upsample doesn't declare the input row group - * "consumed" until we are done color converting and emitting it. - */ - -METHODDEF(void) -fullsize_upsample (j_decompress_ptr cinfo, jpeg_component_info * compptr, - JSAMPARRAY input_data, JSAMPARRAY * output_data_ptr) -{ - *output_data_ptr = input_data; -} - - -/* - * This is a no-op version used for "uninteresting" components. - * These components will not be referenced by color conversion. - */ - -METHODDEF(void) -noop_upsample (j_decompress_ptr cinfo, jpeg_component_info * compptr, - JSAMPARRAY input_data, JSAMPARRAY * output_data_ptr) -{ - *output_data_ptr = NULL; /* safety check */ -} - - -/* - * This version handles any integral sampling ratios. - * This is not used for typical JPEG files, so it need not be fast. - * Nor, for that matter, is it particularly accurate: the algorithm is - * simple replication of the input pixel onto the corresponding output - * pixels. The hi-falutin sampling literature refers to this as a - * "box filter". A box filter tends to introduce visible artifacts, - * so if you are actually going to use 3:1 or 4:1 sampling ratios - * you would be well advised to improve this code. - */ - -METHODDEF(void) -int_upsample (j_decompress_ptr cinfo, jpeg_component_info * compptr, - JSAMPARRAY input_data, JSAMPARRAY * output_data_ptr) -{ - my_upsample_ptr upsample = (my_upsample_ptr) cinfo->upsample; - JSAMPARRAY output_data = *output_data_ptr; - register JSAMPROW inptr, outptr; - register JSAMPLE invalue; - register int h; - JSAMPROW outend; - int h_expand, v_expand; - int inrow, outrow; - - h_expand = upsample->h_expand[compptr->component_index]; - v_expand = upsample->v_expand[compptr->component_index]; - - inrow = outrow = 0; - while (outrow < cinfo->max_v_samp_factor) { - /* Generate one output row with proper horizontal expansion */ - inptr = input_data[inrow]; - outptr = output_data[outrow]; - outend = outptr + cinfo->output_width; - while (outptr < outend) { - invalue = *inptr++; /* don't need GETJSAMPLE() here */ - for (h = h_expand; h > 0; h--) { - *outptr++ = invalue; - } - } - /* Generate any additional output rows by duplicating the first one */ - if (v_expand > 1) { - jcopy_sample_rows(output_data, outrow, output_data, outrow+1, - v_expand-1, cinfo->output_width); - } - inrow++; - outrow += v_expand; - } -} - - -/* - * Fast processing for the common case of 2:1 horizontal and 1:1 vertical. - * It's still a box filter. - */ - -METHODDEF(void) -h2v1_upsample (j_decompress_ptr cinfo, jpeg_component_info * compptr, - JSAMPARRAY input_data, JSAMPARRAY * output_data_ptr) -{ - JSAMPARRAY output_data = *output_data_ptr; - register JSAMPROW inptr, outptr; - register JSAMPLE invalue; - JSAMPROW outend; - int outrow; - - for (outrow = 0; outrow < cinfo->max_v_samp_factor; outrow++) { - inptr = input_data[outrow]; - outptr = output_data[outrow]; - outend = outptr + cinfo->output_width; - while (outptr < outend) { - invalue = *inptr++; /* don't need GETJSAMPLE() here */ - *outptr++ = invalue; - *outptr++ = invalue; - } - } -} - - -/* - * Fast processing for the common case of 2:1 horizontal and 2:1 vertical. - * It's still a box filter. - */ - -METHODDEF(void) -h2v2_upsample (j_decompress_ptr cinfo, jpeg_component_info * compptr, - JSAMPARRAY input_data, JSAMPARRAY * output_data_ptr) -{ - JSAMPARRAY output_data = *output_data_ptr; - register JSAMPROW inptr, outptr; - register JSAMPLE invalue; - JSAMPROW outend; - int inrow, outrow; - - inrow = outrow = 0; - while (outrow < cinfo->max_v_samp_factor) { - inptr = input_data[inrow]; - outptr = output_data[outrow]; - outend = outptr + cinfo->output_width; - while (outptr < outend) { - invalue = *inptr++; /* don't need GETJSAMPLE() here */ - *outptr++ = invalue; - *outptr++ = invalue; - } - jcopy_sample_rows(output_data, outrow, output_data, outrow+1, - 1, cinfo->output_width); - inrow++; - outrow += 2; - } -} - - -/* - * Module initialization routine for upsampling. - */ - -GLOBAL(void) -jinit_upsampler (j_decompress_ptr cinfo) -{ - my_upsample_ptr upsample; - int ci; - jpeg_component_info * compptr; - boolean need_buffer; - int h_in_group, v_in_group, h_out_group, v_out_group; - - upsample = (my_upsample_ptr) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - SIZEOF(my_upsampler)); - cinfo->upsample = (struct jpeg_upsampler *) upsample; - upsample->pub.start_pass = start_pass_upsample; - upsample->pub.upsample = sep_upsample; - upsample->pub.need_context_rows = FALSE; /* until we find out differently */ - - if (cinfo->CCIR601_sampling) /* this isn't supported */ - ERREXIT(cinfo, JERR_CCIR601_NOTIMPL); - - /* Verify we can handle the sampling factors, select per-component methods, - * and create storage as needed. - */ - for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components; - ci++, compptr++) { - /* Compute size of an "input group" after IDCT scaling. This many samples - * are to be converted to max_h_samp_factor * max_v_samp_factor pixels. - */ - h_in_group = (compptr->h_samp_factor * compptr->DCT_h_scaled_size) / - cinfo->min_DCT_h_scaled_size; - v_in_group = (compptr->v_samp_factor * compptr->DCT_v_scaled_size) / - cinfo->min_DCT_v_scaled_size; - h_out_group = cinfo->max_h_samp_factor; - v_out_group = cinfo->max_v_samp_factor; - upsample->rowgroup_height[ci] = v_in_group; /* save for use later */ - need_buffer = TRUE; - if (! compptr->component_needed) { - /* Don't bother to upsample an uninteresting component. */ - upsample->methods[ci] = noop_upsample; - need_buffer = FALSE; - } else if (h_in_group == h_out_group && v_in_group == v_out_group) { - /* Fullsize components can be processed without any work. */ - upsample->methods[ci] = fullsize_upsample; - need_buffer = FALSE; - } else if (h_in_group * 2 == h_out_group && - v_in_group == v_out_group) { - /* Special case for 2h1v upsampling */ - upsample->methods[ci] = h2v1_upsample; - } else if (h_in_group * 2 == h_out_group && - v_in_group * 2 == v_out_group) { - /* Special case for 2h2v upsampling */ - upsample->methods[ci] = h2v2_upsample; - } else if ((h_out_group % h_in_group) == 0 && - (v_out_group % v_in_group) == 0) { - /* Generic integral-factors upsampling method */ - upsample->methods[ci] = int_upsample; - upsample->h_expand[ci] = (UINT8) (h_out_group / h_in_group); - upsample->v_expand[ci] = (UINT8) (v_out_group / v_in_group); - } else - ERREXIT(cinfo, JERR_FRACT_SAMPLE_NOTIMPL); - if (need_buffer) { - upsample->color_buf[ci] = (*cinfo->mem->alloc_sarray) - ((j_common_ptr) cinfo, JPOOL_IMAGE, - (JDIMENSION) jround_up((long) cinfo->output_width, - (long) cinfo->max_h_samp_factor), - (JDIMENSION) cinfo->max_v_samp_factor); - } - } -} diff --git a/jpg/jdtrans.c b/jpg/jdtrans.c deleted file mode 100644 index 22dd47f..0000000 --- a/jpg/jdtrans.c +++ /dev/null @@ -1,140 +0,0 @@ -/* - * jdtrans.c - * - * Copyright (C) 1995-1997, Thomas G. Lane. - * Modified 2000-2009 by Guido Vollbeding. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file contains library routines for transcoding decompression, - * that is, reading raw DCT coefficient arrays from an input JPEG file. - * The routines in jdapimin.c will also be needed by a transcoder. - */ - -#define JPEG_INTERNALS -#include "jinclude.h" -#include "jpeglib.h" - - -/* Forward declarations */ -LOCAL(void) transdecode_master_selection JPP((j_decompress_ptr cinfo)); - - -/* - * Read the coefficient arrays from a JPEG file. - * jpeg_read_header must be completed before calling this. - * - * The entire image is read into a set of virtual coefficient-block arrays, - * one per component. The return value is a pointer to the array of - * virtual-array descriptors. These can be manipulated directly via the - * JPEG memory manager, or handed off to jpeg_write_coefficients(). - * To release the memory occupied by the virtual arrays, call - * jpeg_finish_decompress() when done with the data. - * - * An alternative usage is to simply obtain access to the coefficient arrays - * during a buffered-image-mode decompression operation. This is allowed - * after any jpeg_finish_output() call. The arrays can be accessed until - * jpeg_finish_decompress() is called. (Note that any call to the library - * may reposition the arrays, so don't rely on access_virt_barray() results - * to stay valid across library calls.) - * - * Returns NULL if suspended. This case need be checked only if - * a suspending data source is used. - */ - -GLOBAL(jvirt_barray_ptr *) -jpeg_read_coefficients (j_decompress_ptr cinfo) -{ - if (cinfo->global_state == DSTATE_READY) { - /* First call: initialize active modules */ - transdecode_master_selection(cinfo); - cinfo->global_state = DSTATE_RDCOEFS; - } - if (cinfo->global_state == DSTATE_RDCOEFS) { - /* Absorb whole file into the coef buffer */ - for (;;) { - int retcode; - /* Call progress monitor hook if present */ - if (cinfo->progress != NULL) - (*cinfo->progress->progress_monitor) ((j_common_ptr) cinfo); - /* Absorb some more input */ - retcode = (*cinfo->inputctl->consume_input) (cinfo); - if (retcode == JPEG_SUSPENDED) - return NULL; - if (retcode == JPEG_REACHED_EOI) - break; - /* Advance progress counter if appropriate */ - if (cinfo->progress != NULL && - (retcode == JPEG_ROW_COMPLETED || retcode == JPEG_REACHED_SOS)) { - if (++cinfo->progress->pass_counter >= cinfo->progress->pass_limit) { - /* startup underestimated number of scans; ratchet up one scan */ - cinfo->progress->pass_limit += (long) cinfo->total_iMCU_rows; - } - } - } - /* Set state so that jpeg_finish_decompress does the right thing */ - cinfo->global_state = DSTATE_STOPPING; - } - /* At this point we should be in state DSTATE_STOPPING if being used - * standalone, or in state DSTATE_BUFIMAGE if being invoked to get access - * to the coefficients during a full buffered-image-mode decompression. - */ - if ((cinfo->global_state == DSTATE_STOPPING || - cinfo->global_state == DSTATE_BUFIMAGE) && cinfo->buffered_image) { - return cinfo->coef->coef_arrays; - } - /* Oops, improper usage */ - ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state); - return NULL; /* keep compiler happy */ -} - - -/* - * Master selection of decompression modules for transcoding. - * This substitutes for jdmaster.c's initialization of the full decompressor. - */ - -LOCAL(void) -transdecode_master_selection (j_decompress_ptr cinfo) -{ - /* This is effectively a buffered-image operation. */ - cinfo->buffered_image = TRUE; - - /* Compute output image dimensions and related values. */ - jpeg_core_output_dimensions(cinfo); - - /* Entropy decoding: either Huffman or arithmetic coding. */ - if (cinfo->arith_code) - jinit_arith_decoder(cinfo); - else { - jinit_huff_decoder(cinfo); - } - - /* Always get a full-image coefficient buffer. */ - jinit_d_coef_controller(cinfo, TRUE); - - /* We can now tell the memory manager to allocate virtual arrays. */ - (*cinfo->mem->realize_virt_arrays) ((j_common_ptr) cinfo); - - /* Initialize input side of decompressor to consume first scan. */ - (*cinfo->inputctl->start_input_pass) (cinfo); - - /* Initialize progress monitoring. */ - if (cinfo->progress != NULL) { - int nscans; - /* Estimate number of scans to set pass_limit. */ - if (cinfo->progressive_mode) { - /* Arbitrarily estimate 2 interleaved DC scans + 3 AC scans/component. */ - nscans = 2 + 3 * cinfo->num_components; - } else if (cinfo->inputctl->has_multiple_scans) { - /* For a nonprogressive multiscan file, estimate 1 scan per component. */ - nscans = cinfo->num_components; - } else { - nscans = 1; - } - cinfo->progress->pass_counter = 0L; - cinfo->progress->pass_limit = (long) cinfo->total_iMCU_rows * nscans; - cinfo->progress->completed_passes = 0; - cinfo->progress->total_passes = 1; - } -} diff --git a/jpg/jerror.c b/jpg/jerror.c deleted file mode 100644 index 3da7be8..0000000 --- a/jpg/jerror.c +++ /dev/null @@ -1,252 +0,0 @@ -/* - * jerror.c - * - * Copyright (C) 1991-1998, Thomas G. Lane. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file contains simple error-reporting and trace-message routines. - * These are suitable for Unix-like systems and others where writing to - * stderr is the right thing to do. Many applications will want to replace - * some or all of these routines. - * - * If you define USE_WINDOWS_MESSAGEBOX in jconfig.h or in the makefile, - * you get a Windows-specific hack to display error messages in a dialog box. - * It ain't much, but it beats dropping error messages into the bit bucket, - * which is what happens to output to stderr under most Windows C compilers. - * - * These routines are used by both the compression and decompression code. - */ - -/* this is not a core library module, so it doesn't define JPEG_INTERNALS */ -#include "jinclude.h" -#include "jpeglib.h" -#include "jversion.h" -#include "jerror.h" - -#ifdef USE_WINDOWS_MESSAGEBOX -#include -#endif - -#ifndef EXIT_FAILURE /* define exit() codes if not provided */ -#define EXIT_FAILURE 1 -#endif - - -/* - * Create the message string table. - * We do this from the master message list in jerror.h by re-reading - * jerror.h with a suitable definition for macro JMESSAGE. - * The message table is made an external symbol just in case any applications - * want to refer to it directly. - */ - -#ifdef NEED_SHORT_EXTERNAL_NAMES -#define jpeg_std_message_table jMsgTable -#endif - -#define JMESSAGE(code,string) string , - -const char * const jpeg_std_message_table[] = { -#include "jerror.h" - NULL -}; - - -/* - * Error exit handler: must not return to caller. - * - * Applications may override this if they want to get control back after - * an error. Typically one would longjmp somewhere instead of exiting. - * The setjmp buffer can be made a private field within an expanded error - * handler object. Note that the info needed to generate an error message - * is stored in the error object, so you can generate the message now or - * later, at your convenience. - * You should make sure that the JPEG object is cleaned up (with jpeg_abort - * or jpeg_destroy) at some point. - */ - -METHODDEF(void) -error_exit (j_common_ptr cinfo) -{ - /* Always display the message */ - (*cinfo->err->output_message) (cinfo); - - /* Let the memory manager delete any temp files before we die */ - jpeg_destroy(cinfo); - - exit(EXIT_FAILURE); -} - - -/* - * Actual output of an error or trace message. - * Applications may override this method to send JPEG messages somewhere - * other than stderr. - * - * On Windows, printing to stderr is generally completely useless, - * so we provide optional code to produce an error-dialog popup. - * Most Windows applications will still prefer to override this routine, - * but if they don't, it'll do something at least marginally useful. - * - * NOTE: to use the library in an environment that doesn't support the - * C stdio library, you may have to delete the call to fprintf() entirely, - * not just not use this routine. - */ - -METHODDEF(void) -output_message (j_common_ptr cinfo) -{ - char buffer[JMSG_LENGTH_MAX]; - - /* Create the message */ - (*cinfo->err->format_message) (cinfo, buffer); - -#ifdef USE_WINDOWS_MESSAGEBOX - /* Display it in a message dialog box */ - MessageBox(GetActiveWindow(), buffer, "JPEG Library Error", - MB_OK | MB_ICONERROR); -#else - /* Send it to stderr, adding a newline */ - fprintf(stderr, "%s\n", buffer); -#endif -} - - -/* - * Decide whether to emit a trace or warning message. - * msg_level is one of: - * -1: recoverable corrupt-data warning, may want to abort. - * 0: important advisory messages (always display to user). - * 1: first level of tracing detail. - * 2,3,...: successively more detailed tracing messages. - * An application might override this method if it wanted to abort on warnings - * or change the policy about which messages to display. - */ - -METHODDEF(void) -emit_message (j_common_ptr cinfo, int msg_level) -{ - struct jpeg_error_mgr * err = cinfo->err; - - if (msg_level < 0) { - /* It's a warning message. Since corrupt files may generate many warnings, - * the policy implemented here is to show only the first warning, - * unless trace_level >= 3. - */ - if (err->num_warnings == 0 || err->trace_level >= 3) - (*err->output_message) (cinfo); - /* Always count warnings in num_warnings. */ - err->num_warnings++; - } else { - /* It's a trace message. Show it if trace_level >= msg_level. */ - if (err->trace_level >= msg_level) - (*err->output_message) (cinfo); - } -} - - -/* - * Format a message string for the most recent JPEG error or message. - * The message is stored into buffer, which should be at least JMSG_LENGTH_MAX - * characters. Note that no '\n' character is added to the string. - * Few applications should need to override this method. - */ - -METHODDEF(void) -format_message (j_common_ptr cinfo, char * buffer) -{ - struct jpeg_error_mgr * err = cinfo->err; - int msg_code = err->msg_code; - const char * msgtext = NULL; - const char * msgptr; - char ch; - boolean isstring; - - /* Look up message string in proper table */ - if (msg_code > 0 && msg_code <= err->last_jpeg_message) { - msgtext = err->jpeg_message_table[msg_code]; - } else if (err->addon_message_table != NULL && - msg_code >= err->first_addon_message && - msg_code <= err->last_addon_message) { - msgtext = err->addon_message_table[msg_code - err->first_addon_message]; - } - - /* Defend against bogus message number */ - if (msgtext == NULL) { - err->msg_parm.i[0] = msg_code; - msgtext = err->jpeg_message_table[0]; - } - - /* Check for string parameter, as indicated by %s in the message text */ - isstring = FALSE; - msgptr = msgtext; - while ((ch = *msgptr++) != '\0') { - if (ch == '%') { - if (*msgptr == 's') isstring = TRUE; - break; - } - } - - /* Format the message into the passed buffer */ - if (isstring) - sprintf(buffer, msgtext, err->msg_parm.s); - else - sprintf(buffer, msgtext, - err->msg_parm.i[0], err->msg_parm.i[1], - err->msg_parm.i[2], err->msg_parm.i[3], - err->msg_parm.i[4], err->msg_parm.i[5], - err->msg_parm.i[6], err->msg_parm.i[7]); -} - - -/* - * Reset error state variables at start of a new image. - * This is called during compression startup to reset trace/error - * processing to default state, without losing any application-specific - * method pointers. An application might possibly want to override - * this method if it has additional error processing state. - */ - -METHODDEF(void) -reset_error_mgr (j_common_ptr cinfo) -{ - cinfo->err->num_warnings = 0; - /* trace_level is not reset since it is an application-supplied parameter */ - cinfo->err->msg_code = 0; /* may be useful as a flag for "no error" */ -} - - -/* - * Fill in the standard error-handling methods in a jpeg_error_mgr object. - * Typical call is: - * struct jpeg_compress_struct cinfo; - * struct jpeg_error_mgr err; - * - * cinfo.err = jpeg_std_error(&err); - * after which the application may override some of the methods. - */ - -GLOBAL(struct jpeg_error_mgr *) -jpeg_std_error (struct jpeg_error_mgr * err) -{ - err->error_exit = error_exit; - err->emit_message = emit_message; - err->output_message = output_message; - err->format_message = format_message; - err->reset_error_mgr = reset_error_mgr; - - err->trace_level = 0; /* default = no tracing */ - err->num_warnings = 0; /* no warnings emitted yet */ - err->msg_code = 0; /* may be useful as a flag for "no error" */ - - /* Initialize message table pointers */ - err->jpeg_message_table = jpeg_std_message_table; - err->last_jpeg_message = (int) JMSG_LASTMSGCODE - 1; - - err->addon_message_table = NULL; - err->first_addon_message = 0; /* for safety */ - err->last_addon_message = 0; - - return err; -} diff --git a/jpg/jerror.h b/jpg/jerror.h deleted file mode 100644 index 1cfb2b1..0000000 --- a/jpg/jerror.h +++ /dev/null @@ -1,304 +0,0 @@ -/* - * jerror.h - * - * Copyright (C) 1994-1997, Thomas G. Lane. - * Modified 1997-2009 by Guido Vollbeding. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file defines the error and message codes for the JPEG library. - * Edit this file to add new codes, or to translate the message strings to - * some other language. - * A set of error-reporting macros are defined too. Some applications using - * the JPEG library may wish to include this file to get the error codes - * and/or the macros. - */ - -/* - * To define the enum list of message codes, include this file without - * defining macro JMESSAGE. To create a message string table, include it - * again with a suitable JMESSAGE definition (see jerror.c for an example). - */ -#ifndef JMESSAGE -#ifndef JERROR_H -/* First time through, define the enum list */ -#define JMAKE_ENUM_LIST -#else -/* Repeated inclusions of this file are no-ops unless JMESSAGE is defined */ -#define JMESSAGE(code,string) -#endif /* JERROR_H */ -#endif /* JMESSAGE */ - -#ifdef JMAKE_ENUM_LIST - -typedef enum { - -#define JMESSAGE(code,string) code , - -#endif /* JMAKE_ENUM_LIST */ - -JMESSAGE(JMSG_NOMESSAGE, "Bogus message code %d") /* Must be first entry! */ - -/* For maintenance convenience, list is alphabetical by message code name */ -JMESSAGE(JERR_BAD_ALIGN_TYPE, "ALIGN_TYPE is wrong, please fix") -JMESSAGE(JERR_BAD_ALLOC_CHUNK, "MAX_ALLOC_CHUNK is wrong, please fix") -JMESSAGE(JERR_BAD_BUFFER_MODE, "Bogus buffer control mode") -JMESSAGE(JERR_BAD_COMPONENT_ID, "Invalid component ID %d in SOS") -JMESSAGE(JERR_BAD_CROP_SPEC, "Invalid crop request") -JMESSAGE(JERR_BAD_DCT_COEF, "DCT coefficient out of range") -JMESSAGE(JERR_BAD_DCTSIZE, "DCT scaled block size %dx%d not supported") -JMESSAGE(JERR_BAD_DROP_SAMPLING, - "Component index %d: mismatching sampling ratio %d:%d, %d:%d, %c") -JMESSAGE(JERR_BAD_HUFF_TABLE, "Bogus Huffman table definition") -JMESSAGE(JERR_BAD_IN_COLORSPACE, "Bogus input colorspace") -JMESSAGE(JERR_BAD_J_COLORSPACE, "Bogus JPEG colorspace") -JMESSAGE(JERR_BAD_LENGTH, "Bogus marker length") -JMESSAGE(JERR_BAD_LIB_VERSION, - "Wrong JPEG library version: library is %d, caller expects %d") -JMESSAGE(JERR_BAD_MCU_SIZE, "Sampling factors too large for interleaved scan") -JMESSAGE(JERR_BAD_POOL_ID, "Invalid memory pool code %d") -JMESSAGE(JERR_BAD_PRECISION, "Unsupported JPEG data precision %d") -JMESSAGE(JERR_BAD_PROGRESSION, - "Invalid progressive parameters Ss=%d Se=%d Ah=%d Al=%d") -JMESSAGE(JERR_BAD_PROG_SCRIPT, - "Invalid progressive parameters at scan script entry %d") -JMESSAGE(JERR_BAD_SAMPLING, "Bogus sampling factors") -JMESSAGE(JERR_BAD_SCAN_SCRIPT, "Invalid scan script at entry %d") -JMESSAGE(JERR_BAD_STATE, "Improper call to JPEG library in state %d") -JMESSAGE(JERR_BAD_STRUCT_SIZE, - "JPEG parameter struct mismatch: library thinks size is %u, caller expects %u") -JMESSAGE(JERR_BAD_VIRTUAL_ACCESS, "Bogus virtual array access") -JMESSAGE(JERR_BUFFER_SIZE, "Buffer passed to JPEG library is too small") -JMESSAGE(JERR_CANT_SUSPEND, "Suspension not allowed here") -JMESSAGE(JERR_CCIR601_NOTIMPL, "CCIR601 sampling not implemented yet") -JMESSAGE(JERR_COMPONENT_COUNT, "Too many color components: %d, max %d") -JMESSAGE(JERR_CONVERSION_NOTIMPL, "Unsupported color conversion request") -JMESSAGE(JERR_DAC_INDEX, "Bogus DAC index %d") -JMESSAGE(JERR_DAC_VALUE, "Bogus DAC value 0x%x") -JMESSAGE(JERR_DHT_INDEX, "Bogus DHT index %d") -JMESSAGE(JERR_DQT_INDEX, "Bogus DQT index %d") -JMESSAGE(JERR_EMPTY_IMAGE, "Empty JPEG image (DNL not supported)") -JMESSAGE(JERR_EMS_READ, "Read from EMS failed") -JMESSAGE(JERR_EMS_WRITE, "Write to EMS failed") -JMESSAGE(JERR_EOI_EXPECTED, "Didn't expect more than one scan") -JMESSAGE(JERR_FILE_READ, "Input file read error") -JMESSAGE(JERR_FILE_WRITE, "Output file write error --- out of disk space?") -JMESSAGE(JERR_FRACT_SAMPLE_NOTIMPL, "Fractional sampling not implemented yet") -JMESSAGE(JERR_HUFF_CLEN_OVERFLOW, "Huffman code size table overflow") -JMESSAGE(JERR_HUFF_MISSING_CODE, "Missing Huffman code table entry") -JMESSAGE(JERR_IMAGE_TOO_BIG, "Maximum supported image dimension is %u pixels") -JMESSAGE(JERR_INPUT_EMPTY, "Empty input file") -JMESSAGE(JERR_INPUT_EOF, "Premature end of input file") -JMESSAGE(JERR_MISMATCHED_QUANT_TABLE, - "Cannot transcode due to multiple use of quantization table %d") -JMESSAGE(JERR_MISSING_DATA, "Scan script does not transmit all data") -JMESSAGE(JERR_MODE_CHANGE, "Invalid color quantization mode change") -JMESSAGE(JERR_NOTIMPL, "Not implemented yet") -JMESSAGE(JERR_NOT_COMPILED, "Requested feature was omitted at compile time") -JMESSAGE(JERR_NO_ARITH_TABLE, "Arithmetic table 0x%02x was not defined") -JMESSAGE(JERR_NO_BACKING_STORE, "Backing store not supported") -JMESSAGE(JERR_NO_HUFF_TABLE, "Huffman table 0x%02x was not defined") -JMESSAGE(JERR_NO_IMAGE, "JPEG datastream contains no image") -JMESSAGE(JERR_NO_QUANT_TABLE, "Quantization table 0x%02x was not defined") -JMESSAGE(JERR_NO_SOI, "Not a JPEG file: starts with 0x%02x 0x%02x") -JMESSAGE(JERR_OUT_OF_MEMORY, "Insufficient memory (case %d)") -JMESSAGE(JERR_QUANT_COMPONENTS, - "Cannot quantize more than %d color components") -JMESSAGE(JERR_QUANT_FEW_COLORS, "Cannot quantize to fewer than %d colors") -JMESSAGE(JERR_QUANT_MANY_COLORS, "Cannot quantize to more than %d colors") -JMESSAGE(JERR_SOF_DUPLICATE, "Invalid JPEG file structure: two SOF markers") -JMESSAGE(JERR_SOF_NO_SOS, "Invalid JPEG file structure: missing SOS marker") -JMESSAGE(JERR_SOF_UNSUPPORTED, "Unsupported JPEG process: SOF type 0x%02x") -JMESSAGE(JERR_SOI_DUPLICATE, "Invalid JPEG file structure: two SOI markers") -JMESSAGE(JERR_SOS_NO_SOF, "Invalid JPEG file structure: SOS before SOF") -JMESSAGE(JERR_TFILE_CREATE, "Failed to create temporary file %s") -JMESSAGE(JERR_TFILE_READ, "Read failed on temporary file") -JMESSAGE(JERR_TFILE_SEEK, "Seek failed on temporary file") -JMESSAGE(JERR_TFILE_WRITE, - "Write failed on temporary file --- out of disk space?") -JMESSAGE(JERR_TOO_LITTLE_DATA, "Application transferred too few scanlines") -JMESSAGE(JERR_UNKNOWN_MARKER, "Unsupported marker type 0x%02x") -JMESSAGE(JERR_VIRTUAL_BUG, "Virtual array controller messed up") -JMESSAGE(JERR_WIDTH_OVERFLOW, "Image too wide for this implementation") -JMESSAGE(JERR_XMS_READ, "Read from XMS failed") -JMESSAGE(JERR_XMS_WRITE, "Write to XMS failed") -JMESSAGE(JMSG_COPYRIGHT, JCOPYRIGHT) -JMESSAGE(JMSG_VERSION, JVERSION) -JMESSAGE(JTRC_16BIT_TABLES, - "Caution: quantization tables are too coarse for baseline JPEG") -JMESSAGE(JTRC_ADOBE, - "Adobe APP14 marker: version %d, flags 0x%04x 0x%04x, transform %d") -JMESSAGE(JTRC_APP0, "Unknown APP0 marker (not JFIF), length %u") -JMESSAGE(JTRC_APP14, "Unknown APP14 marker (not Adobe), length %u") -JMESSAGE(JTRC_DAC, "Define Arithmetic Table 0x%02x: 0x%02x") -JMESSAGE(JTRC_DHT, "Define Huffman Table 0x%02x") -JMESSAGE(JTRC_DQT, "Define Quantization Table %d precision %d") -JMESSAGE(JTRC_DRI, "Define Restart Interval %u") -JMESSAGE(JTRC_EMS_CLOSE, "Freed EMS handle %u") -JMESSAGE(JTRC_EMS_OPEN, "Obtained EMS handle %u") -JMESSAGE(JTRC_EOI, "End Of Image") -JMESSAGE(JTRC_HUFFBITS, " %3d %3d %3d %3d %3d %3d %3d %3d") -JMESSAGE(JTRC_JFIF, "JFIF APP0 marker: version %d.%02d, density %dx%d %d") -JMESSAGE(JTRC_JFIF_BADTHUMBNAILSIZE, - "Warning: thumbnail image size does not match data length %u") -JMESSAGE(JTRC_JFIF_EXTENSION, - "JFIF extension marker: type 0x%02x, length %u") -JMESSAGE(JTRC_JFIF_THUMBNAIL, " with %d x %d thumbnail image") -JMESSAGE(JTRC_MISC_MARKER, "Miscellaneous marker 0x%02x, length %u") -JMESSAGE(JTRC_PARMLESS_MARKER, "Unexpected marker 0x%02x") -JMESSAGE(JTRC_QUANTVALS, " %4u %4u %4u %4u %4u %4u %4u %4u") -JMESSAGE(JTRC_QUANT_3_NCOLORS, "Quantizing to %d = %d*%d*%d colors") -JMESSAGE(JTRC_QUANT_NCOLORS, "Quantizing to %d colors") -JMESSAGE(JTRC_QUANT_SELECTED, "Selected %d colors for quantization") -JMESSAGE(JTRC_RECOVERY_ACTION, "At marker 0x%02x, recovery action %d") -JMESSAGE(JTRC_RST, "RST%d") -JMESSAGE(JTRC_SMOOTH_NOTIMPL, - "Smoothing not supported with nonstandard sampling ratios") -JMESSAGE(JTRC_SOF, "Start Of Frame 0x%02x: width=%u, height=%u, components=%d") -JMESSAGE(JTRC_SOF_COMPONENT, " Component %d: %dhx%dv q=%d") -JMESSAGE(JTRC_SOI, "Start of Image") -JMESSAGE(JTRC_SOS, "Start Of Scan: %d components") -JMESSAGE(JTRC_SOS_COMPONENT, " Component %d: dc=%d ac=%d") -JMESSAGE(JTRC_SOS_PARAMS, " Ss=%d, Se=%d, Ah=%d, Al=%d") -JMESSAGE(JTRC_TFILE_CLOSE, "Closed temporary file %s") -JMESSAGE(JTRC_TFILE_OPEN, "Opened temporary file %s") -JMESSAGE(JTRC_THUMB_JPEG, - "JFIF extension marker: JPEG-compressed thumbnail image, length %u") -JMESSAGE(JTRC_THUMB_PALETTE, - "JFIF extension marker: palette thumbnail image, length %u") -JMESSAGE(JTRC_THUMB_RGB, - "JFIF extension marker: RGB thumbnail image, length %u") -JMESSAGE(JTRC_UNKNOWN_IDS, - "Unrecognized component IDs %d %d %d, assuming YCbCr") -JMESSAGE(JTRC_XMS_CLOSE, "Freed XMS handle %u") -JMESSAGE(JTRC_XMS_OPEN, "Obtained XMS handle %u") -JMESSAGE(JWRN_ADOBE_XFORM, "Unknown Adobe color transform code %d") -JMESSAGE(JWRN_ARITH_BAD_CODE, "Corrupt JPEG data: bad arithmetic code") -JMESSAGE(JWRN_BOGUS_PROGRESSION, - "Inconsistent progression sequence for component %d coefficient %d") -JMESSAGE(JWRN_EXTRANEOUS_DATA, - "Corrupt JPEG data: %u extraneous bytes before marker 0x%02x") -JMESSAGE(JWRN_HIT_MARKER, "Corrupt JPEG data: premature end of data segment") -JMESSAGE(JWRN_HUFF_BAD_CODE, "Corrupt JPEG data: bad Huffman code") -JMESSAGE(JWRN_JFIF_MAJOR, "Warning: unknown JFIF revision number %d.%02d") -JMESSAGE(JWRN_JPEG_EOF, "Premature end of JPEG file") -JMESSAGE(JWRN_MUST_RESYNC, - "Corrupt JPEG data: found marker 0x%02x instead of RST%d") -JMESSAGE(JWRN_NOT_SEQUENTIAL, "Invalid SOS parameters for sequential JPEG") -JMESSAGE(JWRN_TOO_MUCH_DATA, "Application transferred too many scanlines") - -#ifdef JMAKE_ENUM_LIST - - JMSG_LASTMSGCODE -} J_MESSAGE_CODE; - -#undef JMAKE_ENUM_LIST -#endif /* JMAKE_ENUM_LIST */ - -/* Zap JMESSAGE macro so that future re-inclusions do nothing by default */ -#undef JMESSAGE - - -#ifndef JERROR_H -#define JERROR_H - -/* Macros to simplify using the error and trace message stuff */ -/* The first parameter is either type of cinfo pointer */ - -/* Fatal errors (print message and exit) */ -#define ERREXIT(cinfo,code) \ - ((cinfo)->err->msg_code = (code), \ - (*(cinfo)->err->error_exit) ((j_common_ptr) (cinfo))) -#define ERREXIT1(cinfo,code,p1) \ - ((cinfo)->err->msg_code = (code), \ - (cinfo)->err->msg_parm.i[0] = (p1), \ - (*(cinfo)->err->error_exit) ((j_common_ptr) (cinfo))) -#define ERREXIT2(cinfo,code,p1,p2) \ - ((cinfo)->err->msg_code = (code), \ - (cinfo)->err->msg_parm.i[0] = (p1), \ - (cinfo)->err->msg_parm.i[1] = (p2), \ - (*(cinfo)->err->error_exit) ((j_common_ptr) (cinfo))) -#define ERREXIT3(cinfo,code,p1,p2,p3) \ - ((cinfo)->err->msg_code = (code), \ - (cinfo)->err->msg_parm.i[0] = (p1), \ - (cinfo)->err->msg_parm.i[1] = (p2), \ - (cinfo)->err->msg_parm.i[2] = (p3), \ - (*(cinfo)->err->error_exit) ((j_common_ptr) (cinfo))) -#define ERREXIT4(cinfo,code,p1,p2,p3,p4) \ - ((cinfo)->err->msg_code = (code), \ - (cinfo)->err->msg_parm.i[0] = (p1), \ - (cinfo)->err->msg_parm.i[1] = (p2), \ - (cinfo)->err->msg_parm.i[2] = (p3), \ - (cinfo)->err->msg_parm.i[3] = (p4), \ - (*(cinfo)->err->error_exit) ((j_common_ptr) (cinfo))) -#define ERREXIT6(cinfo,code,p1,p2,p3,p4,p5,p6) \ - ((cinfo)->err->msg_code = (code), \ - (cinfo)->err->msg_parm.i[0] = (p1), \ - (cinfo)->err->msg_parm.i[1] = (p2), \ - (cinfo)->err->msg_parm.i[2] = (p3), \ - (cinfo)->err->msg_parm.i[3] = (p4), \ - (cinfo)->err->msg_parm.i[4] = (p5), \ - (cinfo)->err->msg_parm.i[5] = (p6), \ - (*(cinfo)->err->error_exit) ((j_common_ptr) (cinfo))) -#define ERREXITS(cinfo,code,str) \ - ((cinfo)->err->msg_code = (code), \ - strncpy((cinfo)->err->msg_parm.s, (str), JMSG_STR_PARM_MAX), \ - (*(cinfo)->err->error_exit) ((j_common_ptr) (cinfo))) - -#define MAKESTMT(stuff) do { stuff } while (0) - -/* Nonfatal errors (we can keep going, but the data is probably corrupt) */ -#define WARNMS(cinfo,code) \ - ((cinfo)->err->msg_code = (code), \ - (*(cinfo)->err->emit_message) ((j_common_ptr) (cinfo), -1)) -#define WARNMS1(cinfo,code,p1) \ - ((cinfo)->err->msg_code = (code), \ - (cinfo)->err->msg_parm.i[0] = (p1), \ - (*(cinfo)->err->emit_message) ((j_common_ptr) (cinfo), -1)) -#define WARNMS2(cinfo,code,p1,p2) \ - ((cinfo)->err->msg_code = (code), \ - (cinfo)->err->msg_parm.i[0] = (p1), \ - (cinfo)->err->msg_parm.i[1] = (p2), \ - (*(cinfo)->err->emit_message) ((j_common_ptr) (cinfo), -1)) - -/* Informational/debugging messages */ -#define TRACEMS(cinfo,lvl,code) \ - ((cinfo)->err->msg_code = (code), \ - (*(cinfo)->err->emit_message) ((j_common_ptr) (cinfo), (lvl))) -#define TRACEMS1(cinfo,lvl,code,p1) \ - ((cinfo)->err->msg_code = (code), \ - (cinfo)->err->msg_parm.i[0] = (p1), \ - (*(cinfo)->err->emit_message) ((j_common_ptr) (cinfo), (lvl))) -#define TRACEMS2(cinfo,lvl,code,p1,p2) \ - ((cinfo)->err->msg_code = (code), \ - (cinfo)->err->msg_parm.i[0] = (p1), \ - (cinfo)->err->msg_parm.i[1] = (p2), \ - (*(cinfo)->err->emit_message) ((j_common_ptr) (cinfo), (lvl))) -#define TRACEMS3(cinfo,lvl,code,p1,p2,p3) \ - MAKESTMT(int * _mp = (cinfo)->err->msg_parm.i; \ - _mp[0] = (p1); _mp[1] = (p2); _mp[2] = (p3); \ - (cinfo)->err->msg_code = (code); \ - (*(cinfo)->err->emit_message) ((j_common_ptr) (cinfo), (lvl)); ) -#define TRACEMS4(cinfo,lvl,code,p1,p2,p3,p4) \ - MAKESTMT(int * _mp = (cinfo)->err->msg_parm.i; \ - _mp[0] = (p1); _mp[1] = (p2); _mp[2] = (p3); _mp[3] = (p4); \ - (cinfo)->err->msg_code = (code); \ - (*(cinfo)->err->emit_message) ((j_common_ptr) (cinfo), (lvl)); ) -#define TRACEMS5(cinfo,lvl,code,p1,p2,p3,p4,p5) \ - MAKESTMT(int * _mp = (cinfo)->err->msg_parm.i; \ - _mp[0] = (p1); _mp[1] = (p2); _mp[2] = (p3); _mp[3] = (p4); \ - _mp[4] = (p5); \ - (cinfo)->err->msg_code = (code); \ - (*(cinfo)->err->emit_message) ((j_common_ptr) (cinfo), (lvl)); ) -#define TRACEMS8(cinfo,lvl,code,p1,p2,p3,p4,p5,p6,p7,p8) \ - MAKESTMT(int * _mp = (cinfo)->err->msg_parm.i; \ - _mp[0] = (p1); _mp[1] = (p2); _mp[2] = (p3); _mp[3] = (p4); \ - _mp[4] = (p5); _mp[5] = (p6); _mp[6] = (p7); _mp[7] = (p8); \ - (cinfo)->err->msg_code = (code); \ - (*(cinfo)->err->emit_message) ((j_common_ptr) (cinfo), (lvl)); ) -#define TRACEMSS(cinfo,lvl,code,str) \ - ((cinfo)->err->msg_code = (code), \ - strncpy((cinfo)->err->msg_parm.s, (str), JMSG_STR_PARM_MAX), \ - (*(cinfo)->err->emit_message) ((j_common_ptr) (cinfo), (lvl))) - -#endif /* JERROR_H */ diff --git a/jpg/jfdctflt.c b/jpg/jfdctflt.c deleted file mode 100644 index 74d0d86..0000000 --- a/jpg/jfdctflt.c +++ /dev/null @@ -1,174 +0,0 @@ -/* - * jfdctflt.c - * - * Copyright (C) 1994-1996, Thomas G. Lane. - * Modified 2003-2009 by Guido Vollbeding. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file contains a floating-point implementation of the - * forward DCT (Discrete Cosine Transform). - * - * This implementation should be more accurate than either of the integer - * DCT implementations. However, it may not give the same results on all - * machines because of differences in roundoff behavior. Speed will depend - * on the hardware's floating point capacity. - * - * A 2-D DCT can be done by 1-D DCT on each row followed by 1-D DCT - * on each column. Direct algorithms are also available, but they are - * much more complex and seem not to be any faster when reduced to code. - * - * This implementation is based on Arai, Agui, and Nakajima's algorithm for - * scaled DCT. Their original paper (Trans. IEICE E-71(11):1095) is in - * Japanese, but the algorithm is described in the Pennebaker & Mitchell - * JPEG textbook (see REFERENCES section in file README). The following code - * is based directly on figure 4-8 in P&M. - * While an 8-point DCT cannot be done in less than 11 multiplies, it is - * possible to arrange the computation so that many of the multiplies are - * simple scalings of the final outputs. These multiplies can then be - * folded into the multiplications or divisions by the JPEG quantization - * table entries. The AA&N method leaves only 5 multiplies and 29 adds - * to be done in the DCT itself. - * The primary disadvantage of this method is that with a fixed-point - * implementation, accuracy is lost due to imprecise representation of the - * scaled quantization values. However, that problem does not arise if - * we use floating point arithmetic. - */ - -#define JPEG_INTERNALS -#include "jinclude.h" -#include "jpeglib.h" -#include "jdct.h" /* Private declarations for DCT subsystem */ - -#ifdef DCT_FLOAT_SUPPORTED - - -/* - * This module is specialized to the case DCTSIZE = 8. - */ - -#if DCTSIZE != 8 - Sorry, this code only copes with 8x8 DCTs. /* deliberate syntax err */ -#endif - - -/* - * Perform the forward DCT on one block of samples. - */ - -GLOBAL(void) -jpeg_fdct_float (FAST_FLOAT * data, JSAMPARRAY sample_data, JDIMENSION start_col) -{ - FAST_FLOAT tmp0, tmp1, tmp2, tmp3, tmp4, tmp5, tmp6, tmp7; - FAST_FLOAT tmp10, tmp11, tmp12, tmp13; - FAST_FLOAT z1, z2, z3, z4, z5, z11, z13; - FAST_FLOAT *dataptr; - JSAMPROW elemptr; - int ctr; - - /* Pass 1: process rows. */ - - dataptr = data; - for (ctr = 0; ctr < DCTSIZE; ctr++) { - elemptr = sample_data[ctr] + start_col; - - /* Load data into workspace */ - tmp0 = (FAST_FLOAT) (GETJSAMPLE(elemptr[0]) + GETJSAMPLE(elemptr[7])); - tmp7 = (FAST_FLOAT) (GETJSAMPLE(elemptr[0]) - GETJSAMPLE(elemptr[7])); - tmp1 = (FAST_FLOAT) (GETJSAMPLE(elemptr[1]) + GETJSAMPLE(elemptr[6])); - tmp6 = (FAST_FLOAT) (GETJSAMPLE(elemptr[1]) - GETJSAMPLE(elemptr[6])); - tmp2 = (FAST_FLOAT) (GETJSAMPLE(elemptr[2]) + GETJSAMPLE(elemptr[5])); - tmp5 = (FAST_FLOAT) (GETJSAMPLE(elemptr[2]) - GETJSAMPLE(elemptr[5])); - tmp3 = (FAST_FLOAT) (GETJSAMPLE(elemptr[3]) + GETJSAMPLE(elemptr[4])); - tmp4 = (FAST_FLOAT) (GETJSAMPLE(elemptr[3]) - GETJSAMPLE(elemptr[4])); - - /* Even part */ - - tmp10 = tmp0 + tmp3; /* phase 2 */ - tmp13 = tmp0 - tmp3; - tmp11 = tmp1 + tmp2; - tmp12 = tmp1 - tmp2; - - /* Apply unsigned->signed conversion */ - dataptr[0] = tmp10 + tmp11 - 8 * CENTERJSAMPLE; /* phase 3 */ - dataptr[4] = tmp10 - tmp11; - - z1 = (tmp12 + tmp13) * ((FAST_FLOAT) 0.707106781); /* c4 */ - dataptr[2] = tmp13 + z1; /* phase 5 */ - dataptr[6] = tmp13 - z1; - - /* Odd part */ - - tmp10 = tmp4 + tmp5; /* phase 2 */ - tmp11 = tmp5 + tmp6; - tmp12 = tmp6 + tmp7; - - /* The rotator is modified from fig 4-8 to avoid extra negations. */ - z5 = (tmp10 - tmp12) * ((FAST_FLOAT) 0.382683433); /* c6 */ - z2 = ((FAST_FLOAT) 0.541196100) * tmp10 + z5; /* c2-c6 */ - z4 = ((FAST_FLOAT) 1.306562965) * tmp12 + z5; /* c2+c6 */ - z3 = tmp11 * ((FAST_FLOAT) 0.707106781); /* c4 */ - - z11 = tmp7 + z3; /* phase 5 */ - z13 = tmp7 - z3; - - dataptr[5] = z13 + z2; /* phase 6 */ - dataptr[3] = z13 - z2; - dataptr[1] = z11 + z4; - dataptr[7] = z11 - z4; - - dataptr += DCTSIZE; /* advance pointer to next row */ - } - - /* Pass 2: process columns. */ - - dataptr = data; - for (ctr = DCTSIZE-1; ctr >= 0; ctr--) { - tmp0 = dataptr[DCTSIZE*0] + dataptr[DCTSIZE*7]; - tmp7 = dataptr[DCTSIZE*0] - dataptr[DCTSIZE*7]; - tmp1 = dataptr[DCTSIZE*1] + dataptr[DCTSIZE*6]; - tmp6 = dataptr[DCTSIZE*1] - dataptr[DCTSIZE*6]; - tmp2 = dataptr[DCTSIZE*2] + dataptr[DCTSIZE*5]; - tmp5 = dataptr[DCTSIZE*2] - dataptr[DCTSIZE*5]; - tmp3 = dataptr[DCTSIZE*3] + dataptr[DCTSIZE*4]; - tmp4 = dataptr[DCTSIZE*3] - dataptr[DCTSIZE*4]; - - /* Even part */ - - tmp10 = tmp0 + tmp3; /* phase 2 */ - tmp13 = tmp0 - tmp3; - tmp11 = tmp1 + tmp2; - tmp12 = tmp1 - tmp2; - - dataptr[DCTSIZE*0] = tmp10 + tmp11; /* phase 3 */ - dataptr[DCTSIZE*4] = tmp10 - tmp11; - - z1 = (tmp12 + tmp13) * ((FAST_FLOAT) 0.707106781); /* c4 */ - dataptr[DCTSIZE*2] = tmp13 + z1; /* phase 5 */ - dataptr[DCTSIZE*6] = tmp13 - z1; - - /* Odd part */ - - tmp10 = tmp4 + tmp5; /* phase 2 */ - tmp11 = tmp5 + tmp6; - tmp12 = tmp6 + tmp7; - - /* The rotator is modified from fig 4-8 to avoid extra negations. */ - z5 = (tmp10 - tmp12) * ((FAST_FLOAT) 0.382683433); /* c6 */ - z2 = ((FAST_FLOAT) 0.541196100) * tmp10 + z5; /* c2-c6 */ - z4 = ((FAST_FLOAT) 1.306562965) * tmp12 + z5; /* c2+c6 */ - z3 = tmp11 * ((FAST_FLOAT) 0.707106781); /* c4 */ - - z11 = tmp7 + z3; /* phase 5 */ - z13 = tmp7 - z3; - - dataptr[DCTSIZE*5] = z13 + z2; /* phase 6 */ - dataptr[DCTSIZE*3] = z13 - z2; - dataptr[DCTSIZE*1] = z11 + z4; - dataptr[DCTSIZE*7] = z11 - z4; - - dataptr++; /* advance pointer to next column */ - } -} - -#endif /* DCT_FLOAT_SUPPORTED */ diff --git a/jpg/jfdctfst.c b/jpg/jfdctfst.c deleted file mode 100644 index 8cad5f2..0000000 --- a/jpg/jfdctfst.c +++ /dev/null @@ -1,230 +0,0 @@ -/* - * jfdctfst.c - * - * Copyright (C) 1994-1996, Thomas G. Lane. - * Modified 2003-2009 by Guido Vollbeding. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file contains a fast, not so accurate integer implementation of the - * forward DCT (Discrete Cosine Transform). - * - * A 2-D DCT can be done by 1-D DCT on each row followed by 1-D DCT - * on each column. Direct algorithms are also available, but they are - * much more complex and seem not to be any faster when reduced to code. - * - * This implementation is based on Arai, Agui, and Nakajima's algorithm for - * scaled DCT. Their original paper (Trans. IEICE E-71(11):1095) is in - * Japanese, but the algorithm is described in the Pennebaker & Mitchell - * JPEG textbook (see REFERENCES section in file README). The following code - * is based directly on figure 4-8 in P&M. - * While an 8-point DCT cannot be done in less than 11 multiplies, it is - * possible to arrange the computation so that many of the multiplies are - * simple scalings of the final outputs. These multiplies can then be - * folded into the multiplications or divisions by the JPEG quantization - * table entries. The AA&N method leaves only 5 multiplies and 29 adds - * to be done in the DCT itself. - * The primary disadvantage of this method is that with fixed-point math, - * accuracy is lost due to imprecise representation of the scaled - * quantization values. The smaller the quantization table entry, the less - * precise the scaled value, so this implementation does worse with high- - * quality-setting files than with low-quality ones. - */ - -#define JPEG_INTERNALS -#include "jinclude.h" -#include "jpeglib.h" -#include "jdct.h" /* Private declarations for DCT subsystem */ - -#ifdef DCT_IFAST_SUPPORTED - - -/* - * This module is specialized to the case DCTSIZE = 8. - */ - -#if DCTSIZE != 8 - Sorry, this code only copes with 8x8 DCTs. /* deliberate syntax err */ -#endif - - -/* Scaling decisions are generally the same as in the LL&M algorithm; - * see jfdctint.c for more details. However, we choose to descale - * (right shift) multiplication products as soon as they are formed, - * rather than carrying additional fractional bits into subsequent additions. - * This compromises accuracy slightly, but it lets us save a few shifts. - * More importantly, 16-bit arithmetic is then adequate (for 8-bit samples) - * everywhere except in the multiplications proper; this saves a good deal - * of work on 16-bit-int machines. - * - * Again to save a few shifts, the intermediate results between pass 1 and - * pass 2 are not upscaled, but are represented only to integral precision. - * - * A final compromise is to represent the multiplicative constants to only - * 8 fractional bits, rather than 13. This saves some shifting work on some - * machines, and may also reduce the cost of multiplication (since there - * are fewer one-bits in the constants). - */ - -#define CONST_BITS 8 - - -/* Some C compilers fail to reduce "FIX(constant)" at compile time, thus - * causing a lot of useless floating-point operations at run time. - * To get around this we use the following pre-calculated constants. - * If you change CONST_BITS you may want to add appropriate values. - * (With a reasonable C compiler, you can just rely on the FIX() macro...) - */ - -#if CONST_BITS == 8 -#define FIX_0_382683433 ((INT32) 98) /* FIX(0.382683433) */ -#define FIX_0_541196100 ((INT32) 139) /* FIX(0.541196100) */ -#define FIX_0_707106781 ((INT32) 181) /* FIX(0.707106781) */ -#define FIX_1_306562965 ((INT32) 334) /* FIX(1.306562965) */ -#else -#define FIX_0_382683433 FIX(0.382683433) -#define FIX_0_541196100 FIX(0.541196100) -#define FIX_0_707106781 FIX(0.707106781) -#define FIX_1_306562965 FIX(1.306562965) -#endif - - -/* We can gain a little more speed, with a further compromise in accuracy, - * by omitting the addition in a descaling shift. This yields an incorrectly - * rounded result half the time... - */ - -#ifndef USE_ACCURATE_ROUNDING -#undef DESCALE -#define DESCALE(x,n) RIGHT_SHIFT(x, n) -#endif - - -/* Multiply a DCTELEM variable by an INT32 constant, and immediately - * descale to yield a DCTELEM result. - */ - -#define MULTIPLY(var,const) ((DCTELEM) DESCALE((var) * (const), CONST_BITS)) - - -/* - * Perform the forward DCT on one block of samples. - */ - -GLOBAL(void) -jpeg_fdct_ifast (DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col) -{ - DCTELEM tmp0, tmp1, tmp2, tmp3, tmp4, tmp5, tmp6, tmp7; - DCTELEM tmp10, tmp11, tmp12, tmp13; - DCTELEM z1, z2, z3, z4, z5, z11, z13; - DCTELEM *dataptr; - JSAMPROW elemptr; - int ctr; - SHIFT_TEMPS - - /* Pass 1: process rows. */ - - dataptr = data; - for (ctr = 0; ctr < DCTSIZE; ctr++) { - elemptr = sample_data[ctr] + start_col; - - /* Load data into workspace */ - tmp0 = GETJSAMPLE(elemptr[0]) + GETJSAMPLE(elemptr[7]); - tmp7 = GETJSAMPLE(elemptr[0]) - GETJSAMPLE(elemptr[7]); - tmp1 = GETJSAMPLE(elemptr[1]) + GETJSAMPLE(elemptr[6]); - tmp6 = GETJSAMPLE(elemptr[1]) - GETJSAMPLE(elemptr[6]); - tmp2 = GETJSAMPLE(elemptr[2]) + GETJSAMPLE(elemptr[5]); - tmp5 = GETJSAMPLE(elemptr[2]) - GETJSAMPLE(elemptr[5]); - tmp3 = GETJSAMPLE(elemptr[3]) + GETJSAMPLE(elemptr[4]); - tmp4 = GETJSAMPLE(elemptr[3]) - GETJSAMPLE(elemptr[4]); - - /* Even part */ - - tmp10 = tmp0 + tmp3; /* phase 2 */ - tmp13 = tmp0 - tmp3; - tmp11 = tmp1 + tmp2; - tmp12 = tmp1 - tmp2; - - /* Apply unsigned->signed conversion */ - dataptr[0] = tmp10 + tmp11 - 8 * CENTERJSAMPLE; /* phase 3 */ - dataptr[4] = tmp10 - tmp11; - - z1 = MULTIPLY(tmp12 + tmp13, FIX_0_707106781); /* c4 */ - dataptr[2] = tmp13 + z1; /* phase 5 */ - dataptr[6] = tmp13 - z1; - - /* Odd part */ - - tmp10 = tmp4 + tmp5; /* phase 2 */ - tmp11 = tmp5 + tmp6; - tmp12 = tmp6 + tmp7; - - /* The rotator is modified from fig 4-8 to avoid extra negations. */ - z5 = MULTIPLY(tmp10 - tmp12, FIX_0_382683433); /* c6 */ - z2 = MULTIPLY(tmp10, FIX_0_541196100) + z5; /* c2-c6 */ - z4 = MULTIPLY(tmp12, FIX_1_306562965) + z5; /* c2+c6 */ - z3 = MULTIPLY(tmp11, FIX_0_707106781); /* c4 */ - - z11 = tmp7 + z3; /* phase 5 */ - z13 = tmp7 - z3; - - dataptr[5] = z13 + z2; /* phase 6 */ - dataptr[3] = z13 - z2; - dataptr[1] = z11 + z4; - dataptr[7] = z11 - z4; - - dataptr += DCTSIZE; /* advance pointer to next row */ - } - - /* Pass 2: process columns. */ - - dataptr = data; - for (ctr = DCTSIZE-1; ctr >= 0; ctr--) { - tmp0 = dataptr[DCTSIZE*0] + dataptr[DCTSIZE*7]; - tmp7 = dataptr[DCTSIZE*0] - dataptr[DCTSIZE*7]; - tmp1 = dataptr[DCTSIZE*1] + dataptr[DCTSIZE*6]; - tmp6 = dataptr[DCTSIZE*1] - dataptr[DCTSIZE*6]; - tmp2 = dataptr[DCTSIZE*2] + dataptr[DCTSIZE*5]; - tmp5 = dataptr[DCTSIZE*2] - dataptr[DCTSIZE*5]; - tmp3 = dataptr[DCTSIZE*3] + dataptr[DCTSIZE*4]; - tmp4 = dataptr[DCTSIZE*3] - dataptr[DCTSIZE*4]; - - /* Even part */ - - tmp10 = tmp0 + tmp3; /* phase 2 */ - tmp13 = tmp0 - tmp3; - tmp11 = tmp1 + tmp2; - tmp12 = tmp1 - tmp2; - - dataptr[DCTSIZE*0] = tmp10 + tmp11; /* phase 3 */ - dataptr[DCTSIZE*4] = tmp10 - tmp11; - - z1 = MULTIPLY(tmp12 + tmp13, FIX_0_707106781); /* c4 */ - dataptr[DCTSIZE*2] = tmp13 + z1; /* phase 5 */ - dataptr[DCTSIZE*6] = tmp13 - z1; - - /* Odd part */ - - tmp10 = tmp4 + tmp5; /* phase 2 */ - tmp11 = tmp5 + tmp6; - tmp12 = tmp6 + tmp7; - - /* The rotator is modified from fig 4-8 to avoid extra negations. */ - z5 = MULTIPLY(tmp10 - tmp12, FIX_0_382683433); /* c6 */ - z2 = MULTIPLY(tmp10, FIX_0_541196100) + z5; /* c2-c6 */ - z4 = MULTIPLY(tmp12, FIX_1_306562965) + z5; /* c2+c6 */ - z3 = MULTIPLY(tmp11, FIX_0_707106781); /* c4 */ - - z11 = tmp7 + z3; /* phase 5 */ - z13 = tmp7 - z3; - - dataptr[DCTSIZE*5] = z13 + z2; /* phase 6 */ - dataptr[DCTSIZE*3] = z13 - z2; - dataptr[DCTSIZE*1] = z11 + z4; - dataptr[DCTSIZE*7] = z11 - z4; - - dataptr++; /* advance pointer to next column */ - } -} - -#endif /* DCT_IFAST_SUPPORTED */ diff --git a/jpg/jfdctint.c b/jpg/jfdctint.c deleted file mode 100644 index 1dde58c..0000000 --- a/jpg/jfdctint.c +++ /dev/null @@ -1,4348 +0,0 @@ -/* - * jfdctint.c - * - * Copyright (C) 1991-1996, Thomas G. Lane. - * Modification developed 2003-2009 by Guido Vollbeding. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file contains a slow-but-accurate integer implementation of the - * forward DCT (Discrete Cosine Transform). - * - * A 2-D DCT can be done by 1-D DCT on each row followed by 1-D DCT - * on each column. Direct algorithms are also available, but they are - * much more complex and seem not to be any faster when reduced to code. - * - * This implementation is based on an algorithm described in - * C. Loeffler, A. Ligtenberg and G. Moschytz, "Practical Fast 1-D DCT - * Algorithms with 11 Multiplications", Proc. Int'l. Conf. on Acoustics, - * Speech, and Signal Processing 1989 (ICASSP '89), pp. 988-991. - * The primary algorithm described there uses 11 multiplies and 29 adds. - * We use their alternate method with 12 multiplies and 32 adds. - * The advantage of this method is that no data path contains more than one - * multiplication; this allows a very simple and accurate implementation in - * scaled fixed-point arithmetic, with a minimal number of shifts. - * - * We also provide FDCT routines with various input sample block sizes for - * direct resolution reduction or enlargement and for direct resolving the - * common 2x1 and 1x2 subsampling cases without additional resampling: NxN - * (N=1...16), 2NxN, and Nx2N (N=1...8) pixels for one 8x8 output DCT block. - * - * For N<8 we fill the remaining block coefficients with zero. - * For N>8 we apply a partial N-point FDCT on the input samples, computing - * just the lower 8 frequency coefficients and discarding the rest. - * - * We must scale the output coefficients of the N-point FDCT appropriately - * to the standard 8-point FDCT level by 8/N per 1-D pass. This scaling - * is folded into the constant multipliers (pass 2) and/or final/initial - * shifting. - * - * CAUTION: We rely on the FIX() macro except for the N=1,2,4,8 cases - * since there would be too many additional constants to pre-calculate. - */ - -#define JPEG_INTERNALS -#include "jinclude.h" -#include "jpeglib.h" -#include "jdct.h" /* Private declarations for DCT subsystem */ - -#ifdef DCT_ISLOW_SUPPORTED - - -/* - * This module is specialized to the case DCTSIZE = 8. - */ - -#if DCTSIZE != 8 - Sorry, this code only copes with 8x8 DCT blocks. /* deliberate syntax err */ -#endif - - -/* - * The poop on this scaling stuff is as follows: - * - * Each 1-D DCT step produces outputs which are a factor of sqrt(N) - * larger than the true DCT outputs. The final outputs are therefore - * a factor of N larger than desired; since N=8 this can be cured by - * a simple right shift at the end of the algorithm. The advantage of - * this arrangement is that we save two multiplications per 1-D DCT, - * because the y0 and y4 outputs need not be divided by sqrt(N). - * In the IJG code, this factor of 8 is removed by the quantization step - * (in jcdctmgr.c), NOT in this module. - * - * We have to do addition and subtraction of the integer inputs, which - * is no problem, and multiplication by fractional constants, which is - * a problem to do in integer arithmetic. We multiply all the constants - * by CONST_SCALE and convert them to integer constants (thus retaining - * CONST_BITS bits of precision in the constants). After doing a - * multiplication we have to divide the product by CONST_SCALE, with proper - * rounding, to produce the correct output. This division can be done - * cheaply as a right shift of CONST_BITS bits. We postpone shifting - * as long as possible so that partial sums can be added together with - * full fractional precision. - * - * The outputs of the first pass are scaled up by PASS1_BITS bits so that - * they are represented to better-than-integral precision. These outputs - * require BITS_IN_JSAMPLE + PASS1_BITS + 3 bits; this fits in a 16-bit word - * with the recommended scaling. (For 12-bit sample data, the intermediate - * array is INT32 anyway.) - * - * To avoid overflow of the 32-bit intermediate results in pass 2, we must - * have BITS_IN_JSAMPLE + CONST_BITS + PASS1_BITS <= 26. Error analysis - * shows that the values given below are the most effective. - */ - -#if BITS_IN_JSAMPLE == 8 -#define CONST_BITS 13 -#define PASS1_BITS 2 -#else -#define CONST_BITS 13 -#define PASS1_BITS 1 /* lose a little precision to avoid overflow */ -#endif - -/* Some C compilers fail to reduce "FIX(constant)" at compile time, thus - * causing a lot of useless floating-point operations at run time. - * To get around this we use the following pre-calculated constants. - * If you change CONST_BITS you may want to add appropriate values. - * (With a reasonable C compiler, you can just rely on the FIX() macro...) - */ - -#if CONST_BITS == 13 -#define FIX_0_298631336 ((INT32) 2446) /* FIX(0.298631336) */ -#define FIX_0_390180644 ((INT32) 3196) /* FIX(0.390180644) */ -#define FIX_0_541196100 ((INT32) 4433) /* FIX(0.541196100) */ -#define FIX_0_765366865 ((INT32) 6270) /* FIX(0.765366865) */ -#define FIX_0_899976223 ((INT32) 7373) /* FIX(0.899976223) */ -#define FIX_1_175875602 ((INT32) 9633) /* FIX(1.175875602) */ -#define FIX_1_501321110 ((INT32) 12299) /* FIX(1.501321110) */ -#define FIX_1_847759065 ((INT32) 15137) /* FIX(1.847759065) */ -#define FIX_1_961570560 ((INT32) 16069) /* FIX(1.961570560) */ -#define FIX_2_053119869 ((INT32) 16819) /* FIX(2.053119869) */ -#define FIX_2_562915447 ((INT32) 20995) /* FIX(2.562915447) */ -#define FIX_3_072711026 ((INT32) 25172) /* FIX(3.072711026) */ -#else -#define FIX_0_298631336 FIX(0.298631336) -#define FIX_0_390180644 FIX(0.390180644) -#define FIX_0_541196100 FIX(0.541196100) -#define FIX_0_765366865 FIX(0.765366865) -#define FIX_0_899976223 FIX(0.899976223) -#define FIX_1_175875602 FIX(1.175875602) -#define FIX_1_501321110 FIX(1.501321110) -#define FIX_1_847759065 FIX(1.847759065) -#define FIX_1_961570560 FIX(1.961570560) -#define FIX_2_053119869 FIX(2.053119869) -#define FIX_2_562915447 FIX(2.562915447) -#define FIX_3_072711026 FIX(3.072711026) -#endif - - -/* Multiply an INT32 variable by an INT32 constant to yield an INT32 result. - * For 8-bit samples with the recommended scaling, all the variable - * and constant values involved are no more than 16 bits wide, so a - * 16x16->32 bit multiply can be used instead of a full 32x32 multiply. - * For 12-bit samples, a full 32-bit multiplication will be needed. - */ - -#if BITS_IN_JSAMPLE == 8 -#define MULTIPLY(var,const) MULTIPLY16C16(var,const) -#else -#define MULTIPLY(var,const) ((var) * (const)) -#endif - - -/* - * Perform the forward DCT on one block of samples. - */ - -GLOBAL(void) -jpeg_fdct_islow (DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col) -{ - INT32 tmp0, tmp1, tmp2, tmp3; - INT32 tmp10, tmp11, tmp12, tmp13; - INT32 z1; - DCTELEM *dataptr; - JSAMPROW elemptr; - int ctr; - SHIFT_TEMPS - - /* Pass 1: process rows. */ - /* Note results are scaled up by sqrt(8) compared to a true DCT; */ - /* furthermore, we scale the results by 2**PASS1_BITS. */ - - dataptr = data; - for (ctr = 0; ctr < DCTSIZE; ctr++) { - elemptr = sample_data[ctr] + start_col; - - /* Even part per LL&M figure 1 --- note that published figure is faulty; - * rotator "sqrt(2)*c1" should be "sqrt(2)*c6". - */ - - tmp0 = GETJSAMPLE(elemptr[0]) + GETJSAMPLE(elemptr[7]); - tmp1 = GETJSAMPLE(elemptr[1]) + GETJSAMPLE(elemptr[6]); - tmp2 = GETJSAMPLE(elemptr[2]) + GETJSAMPLE(elemptr[5]); - tmp3 = GETJSAMPLE(elemptr[3]) + GETJSAMPLE(elemptr[4]); - - tmp10 = tmp0 + tmp3; - tmp12 = tmp0 - tmp3; - tmp11 = tmp1 + tmp2; - tmp13 = tmp1 - tmp2; - - tmp0 = GETJSAMPLE(elemptr[0]) - GETJSAMPLE(elemptr[7]); - tmp1 = GETJSAMPLE(elemptr[1]) - GETJSAMPLE(elemptr[6]); - tmp2 = GETJSAMPLE(elemptr[2]) - GETJSAMPLE(elemptr[5]); - tmp3 = GETJSAMPLE(elemptr[3]) - GETJSAMPLE(elemptr[4]); - - /* Apply unsigned->signed conversion */ - dataptr[0] = (DCTELEM) ((tmp10 + tmp11 - 8 * CENTERJSAMPLE) << PASS1_BITS); - dataptr[4] = (DCTELEM) ((tmp10 - tmp11) << PASS1_BITS); - - z1 = MULTIPLY(tmp12 + tmp13, FIX_0_541196100); - /* Add fudge factor here for final descale. */ - z1 += ONE << (CONST_BITS-PASS1_BITS-1); - dataptr[2] = (DCTELEM) RIGHT_SHIFT(z1 + MULTIPLY(tmp12, FIX_0_765366865), - CONST_BITS-PASS1_BITS); - dataptr[6] = (DCTELEM) RIGHT_SHIFT(z1 - MULTIPLY(tmp13, FIX_1_847759065), - CONST_BITS-PASS1_BITS); - - /* Odd part per figure 8 --- note paper omits factor of sqrt(2). - * cK represents sqrt(2) * cos(K*pi/16). - * i0..i3 in the paper are tmp0..tmp3 here. - */ - - tmp10 = tmp0 + tmp3; - tmp11 = tmp1 + tmp2; - tmp12 = tmp0 + tmp2; - tmp13 = tmp1 + tmp3; - z1 = MULTIPLY(tmp12 + tmp13, FIX_1_175875602); /* c3 */ - /* Add fudge factor here for final descale. */ - z1 += ONE << (CONST_BITS-PASS1_BITS-1); - - tmp0 = MULTIPLY(tmp0, FIX_1_501321110); /* c1+c3-c5-c7 */ - tmp1 = MULTIPLY(tmp1, FIX_3_072711026); /* c1+c3+c5-c7 */ - tmp2 = MULTIPLY(tmp2, FIX_2_053119869); /* c1+c3-c5+c7 */ - tmp3 = MULTIPLY(tmp3, FIX_0_298631336); /* -c1+c3+c5-c7 */ - tmp10 = MULTIPLY(tmp10, - FIX_0_899976223); /* c7-c3 */ - tmp11 = MULTIPLY(tmp11, - FIX_2_562915447); /* -c1-c3 */ - tmp12 = MULTIPLY(tmp12, - FIX_0_390180644); /* c5-c3 */ - tmp13 = MULTIPLY(tmp13, - FIX_1_961570560); /* -c3-c5 */ - - tmp12 += z1; - tmp13 += z1; - - dataptr[1] = (DCTELEM) - RIGHT_SHIFT(tmp0 + tmp10 + tmp12, CONST_BITS-PASS1_BITS); - dataptr[3] = (DCTELEM) - RIGHT_SHIFT(tmp1 + tmp11 + tmp13, CONST_BITS-PASS1_BITS); - dataptr[5] = (DCTELEM) - RIGHT_SHIFT(tmp2 + tmp11 + tmp12, CONST_BITS-PASS1_BITS); - dataptr[7] = (DCTELEM) - RIGHT_SHIFT(tmp3 + tmp10 + tmp13, CONST_BITS-PASS1_BITS); - - dataptr += DCTSIZE; /* advance pointer to next row */ - } - - /* Pass 2: process columns. - * We remove the PASS1_BITS scaling, but leave the results scaled up - * by an overall factor of 8. - */ - - dataptr = data; - for (ctr = DCTSIZE-1; ctr >= 0; ctr--) { - /* Even part per LL&M figure 1 --- note that published figure is faulty; - * rotator "sqrt(2)*c1" should be "sqrt(2)*c6". - */ - - tmp0 = dataptr[DCTSIZE*0] + dataptr[DCTSIZE*7]; - tmp1 = dataptr[DCTSIZE*1] + dataptr[DCTSIZE*6]; - tmp2 = dataptr[DCTSIZE*2] + dataptr[DCTSIZE*5]; - tmp3 = dataptr[DCTSIZE*3] + dataptr[DCTSIZE*4]; - - /* Add fudge factor here for final descale. */ - tmp10 = tmp0 + tmp3 + (ONE << (PASS1_BITS-1)); - tmp12 = tmp0 - tmp3; - tmp11 = tmp1 + tmp2; - tmp13 = tmp1 - tmp2; - - tmp0 = dataptr[DCTSIZE*0] - dataptr[DCTSIZE*7]; - tmp1 = dataptr[DCTSIZE*1] - dataptr[DCTSIZE*6]; - tmp2 = dataptr[DCTSIZE*2] - dataptr[DCTSIZE*5]; - tmp3 = dataptr[DCTSIZE*3] - dataptr[DCTSIZE*4]; - - dataptr[DCTSIZE*0] = (DCTELEM) RIGHT_SHIFT(tmp10 + tmp11, PASS1_BITS); - dataptr[DCTSIZE*4] = (DCTELEM) RIGHT_SHIFT(tmp10 - tmp11, PASS1_BITS); - - z1 = MULTIPLY(tmp12 + tmp13, FIX_0_541196100); - /* Add fudge factor here for final descale. */ - z1 += ONE << (CONST_BITS+PASS1_BITS-1); - dataptr[DCTSIZE*2] = (DCTELEM) - RIGHT_SHIFT(z1 + MULTIPLY(tmp12, FIX_0_765366865), CONST_BITS+PASS1_BITS); - dataptr[DCTSIZE*6] = (DCTELEM) - RIGHT_SHIFT(z1 - MULTIPLY(tmp13, FIX_1_847759065), CONST_BITS+PASS1_BITS); - - /* Odd part per figure 8 --- note paper omits factor of sqrt(2). - * cK represents sqrt(2) * cos(K*pi/16). - * i0..i3 in the paper are tmp0..tmp3 here. - */ - - tmp10 = tmp0 + tmp3; - tmp11 = tmp1 + tmp2; - tmp12 = tmp0 + tmp2; - tmp13 = tmp1 + tmp3; - z1 = MULTIPLY(tmp12 + tmp13, FIX_1_175875602); /* c3 */ - /* Add fudge factor here for final descale. */ - z1 += ONE << (CONST_BITS+PASS1_BITS-1); - - tmp0 = MULTIPLY(tmp0, FIX_1_501321110); /* c1+c3-c5-c7 */ - tmp1 = MULTIPLY(tmp1, FIX_3_072711026); /* c1+c3+c5-c7 */ - tmp2 = MULTIPLY(tmp2, FIX_2_053119869); /* c1+c3-c5+c7 */ - tmp3 = MULTIPLY(tmp3, FIX_0_298631336); /* -c1+c3+c5-c7 */ - tmp10 = MULTIPLY(tmp10, - FIX_0_899976223); /* c7-c3 */ - tmp11 = MULTIPLY(tmp11, - FIX_2_562915447); /* -c1-c3 */ - tmp12 = MULTIPLY(tmp12, - FIX_0_390180644); /* c5-c3 */ - tmp13 = MULTIPLY(tmp13, - FIX_1_961570560); /* -c3-c5 */ - - tmp12 += z1; - tmp13 += z1; - - dataptr[DCTSIZE*1] = (DCTELEM) - RIGHT_SHIFT(tmp0 + tmp10 + tmp12, CONST_BITS+PASS1_BITS); - dataptr[DCTSIZE*3] = (DCTELEM) - RIGHT_SHIFT(tmp1 + tmp11 + tmp13, CONST_BITS+PASS1_BITS); - dataptr[DCTSIZE*5] = (DCTELEM) - RIGHT_SHIFT(tmp2 + tmp11 + tmp12, CONST_BITS+PASS1_BITS); - dataptr[DCTSIZE*7] = (DCTELEM) - RIGHT_SHIFT(tmp3 + tmp10 + tmp13, CONST_BITS+PASS1_BITS); - - dataptr++; /* advance pointer to next column */ - } -} - -#ifdef DCT_SCALING_SUPPORTED - - -/* - * Perform the forward DCT on a 7x7 sample block. - */ - -GLOBAL(void) -jpeg_fdct_7x7 (DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col) -{ - INT32 tmp0, tmp1, tmp2, tmp3; - INT32 tmp10, tmp11, tmp12; - INT32 z1, z2, z3; - DCTELEM *dataptr; - JSAMPROW elemptr; - int ctr; - SHIFT_TEMPS - - /* Pre-zero output coefficient block. */ - MEMZERO(data, SIZEOF(DCTELEM) * DCTSIZE2); - - /* Pass 1: process rows. */ - /* Note results are scaled up by sqrt(8) compared to a true DCT; */ - /* furthermore, we scale the results by 2**PASS1_BITS. */ - /* cK represents sqrt(2) * cos(K*pi/14). */ - - dataptr = data; - for (ctr = 0; ctr < 7; ctr++) { - elemptr = sample_data[ctr] + start_col; - - /* Even part */ - - tmp0 = GETJSAMPLE(elemptr[0]) + GETJSAMPLE(elemptr[6]); - tmp1 = GETJSAMPLE(elemptr[1]) + GETJSAMPLE(elemptr[5]); - tmp2 = GETJSAMPLE(elemptr[2]) + GETJSAMPLE(elemptr[4]); - tmp3 = GETJSAMPLE(elemptr[3]); - - tmp10 = GETJSAMPLE(elemptr[0]) - GETJSAMPLE(elemptr[6]); - tmp11 = GETJSAMPLE(elemptr[1]) - GETJSAMPLE(elemptr[5]); - tmp12 = GETJSAMPLE(elemptr[2]) - GETJSAMPLE(elemptr[4]); - - z1 = tmp0 + tmp2; - /* Apply unsigned->signed conversion */ - dataptr[0] = (DCTELEM) - ((z1 + tmp1 + tmp3 - 7 * CENTERJSAMPLE) << PASS1_BITS); - tmp3 += tmp3; - z1 -= tmp3; - z1 -= tmp3; - z1 = MULTIPLY(z1, FIX(0.353553391)); /* (c2+c6-c4)/2 */ - z2 = MULTIPLY(tmp0 - tmp2, FIX(0.920609002)); /* (c2+c4-c6)/2 */ - z3 = MULTIPLY(tmp1 - tmp2, FIX(0.314692123)); /* c6 */ - dataptr[2] = (DCTELEM) DESCALE(z1 + z2 + z3, CONST_BITS-PASS1_BITS); - z1 -= z2; - z2 = MULTIPLY(tmp0 - tmp1, FIX(0.881747734)); /* c4 */ - dataptr[4] = (DCTELEM) - DESCALE(z2 + z3 - MULTIPLY(tmp1 - tmp3, FIX(0.707106781)), /* c2+c6-c4 */ - CONST_BITS-PASS1_BITS); - dataptr[6] = (DCTELEM) DESCALE(z1 + z2, CONST_BITS-PASS1_BITS); - - /* Odd part */ - - tmp1 = MULTIPLY(tmp10 + tmp11, FIX(0.935414347)); /* (c3+c1-c5)/2 */ - tmp2 = MULTIPLY(tmp10 - tmp11, FIX(0.170262339)); /* (c3+c5-c1)/2 */ - tmp0 = tmp1 - tmp2; - tmp1 += tmp2; - tmp2 = MULTIPLY(tmp11 + tmp12, - FIX(1.378756276)); /* -c1 */ - tmp1 += tmp2; - tmp3 = MULTIPLY(tmp10 + tmp12, FIX(0.613604268)); /* c5 */ - tmp0 += tmp3; - tmp2 += tmp3 + MULTIPLY(tmp12, FIX(1.870828693)); /* c3+c1-c5 */ - - dataptr[1] = (DCTELEM) DESCALE(tmp0, CONST_BITS-PASS1_BITS); - dataptr[3] = (DCTELEM) DESCALE(tmp1, CONST_BITS-PASS1_BITS); - dataptr[5] = (DCTELEM) DESCALE(tmp2, CONST_BITS-PASS1_BITS); - - dataptr += DCTSIZE; /* advance pointer to next row */ - } - - /* Pass 2: process columns. - * We remove the PASS1_BITS scaling, but leave the results scaled up - * by an overall factor of 8. - * We must also scale the output by (8/7)**2 = 64/49, which we fold - * into the constant multipliers: - * cK now represents sqrt(2) * cos(K*pi/14) * 64/49. - */ - - dataptr = data; - for (ctr = 0; ctr < 7; ctr++) { - /* Even part */ - - tmp0 = dataptr[DCTSIZE*0] + dataptr[DCTSIZE*6]; - tmp1 = dataptr[DCTSIZE*1] + dataptr[DCTSIZE*5]; - tmp2 = dataptr[DCTSIZE*2] + dataptr[DCTSIZE*4]; - tmp3 = dataptr[DCTSIZE*3]; - - tmp10 = dataptr[DCTSIZE*0] - dataptr[DCTSIZE*6]; - tmp11 = dataptr[DCTSIZE*1] - dataptr[DCTSIZE*5]; - tmp12 = dataptr[DCTSIZE*2] - dataptr[DCTSIZE*4]; - - z1 = tmp0 + tmp2; - dataptr[DCTSIZE*0] = (DCTELEM) - DESCALE(MULTIPLY(z1 + tmp1 + tmp3, FIX(1.306122449)), /* 64/49 */ - CONST_BITS+PASS1_BITS); - tmp3 += tmp3; - z1 -= tmp3; - z1 -= tmp3; - z1 = MULTIPLY(z1, FIX(0.461784020)); /* (c2+c6-c4)/2 */ - z2 = MULTIPLY(tmp0 - tmp2, FIX(1.202428084)); /* (c2+c4-c6)/2 */ - z3 = MULTIPLY(tmp1 - tmp2, FIX(0.411026446)); /* c6 */ - dataptr[DCTSIZE*2] = (DCTELEM) DESCALE(z1 + z2 + z3, CONST_BITS+PASS1_BITS); - z1 -= z2; - z2 = MULTIPLY(tmp0 - tmp1, FIX(1.151670509)); /* c4 */ - dataptr[DCTSIZE*4] = (DCTELEM) - DESCALE(z2 + z3 - MULTIPLY(tmp1 - tmp3, FIX(0.923568041)), /* c2+c6-c4 */ - CONST_BITS+PASS1_BITS); - dataptr[DCTSIZE*6] = (DCTELEM) DESCALE(z1 + z2, CONST_BITS+PASS1_BITS); - - /* Odd part */ - - tmp1 = MULTIPLY(tmp10 + tmp11, FIX(1.221765677)); /* (c3+c1-c5)/2 */ - tmp2 = MULTIPLY(tmp10 - tmp11, FIX(0.222383464)); /* (c3+c5-c1)/2 */ - tmp0 = tmp1 - tmp2; - tmp1 += tmp2; - tmp2 = MULTIPLY(tmp11 + tmp12, - FIX(1.800824523)); /* -c1 */ - tmp1 += tmp2; - tmp3 = MULTIPLY(tmp10 + tmp12, FIX(0.801442310)); /* c5 */ - tmp0 += tmp3; - tmp2 += tmp3 + MULTIPLY(tmp12, FIX(2.443531355)); /* c3+c1-c5 */ - - dataptr[DCTSIZE*1] = (DCTELEM) DESCALE(tmp0, CONST_BITS+PASS1_BITS); - dataptr[DCTSIZE*3] = (DCTELEM) DESCALE(tmp1, CONST_BITS+PASS1_BITS); - dataptr[DCTSIZE*5] = (DCTELEM) DESCALE(tmp2, CONST_BITS+PASS1_BITS); - - dataptr++; /* advance pointer to next column */ - } -} - - -/* - * Perform the forward DCT on a 6x6 sample block. - */ - -GLOBAL(void) -jpeg_fdct_6x6 (DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col) -{ - INT32 tmp0, tmp1, tmp2; - INT32 tmp10, tmp11, tmp12; - DCTELEM *dataptr; - JSAMPROW elemptr; - int ctr; - SHIFT_TEMPS - - /* Pre-zero output coefficient block. */ - MEMZERO(data, SIZEOF(DCTELEM) * DCTSIZE2); - - /* Pass 1: process rows. */ - /* Note results are scaled up by sqrt(8) compared to a true DCT; */ - /* furthermore, we scale the results by 2**PASS1_BITS. */ - /* cK represents sqrt(2) * cos(K*pi/12). */ - - dataptr = data; - for (ctr = 0; ctr < 6; ctr++) { - elemptr = sample_data[ctr] + start_col; - - /* Even part */ - - tmp0 = GETJSAMPLE(elemptr[0]) + GETJSAMPLE(elemptr[5]); - tmp11 = GETJSAMPLE(elemptr[1]) + GETJSAMPLE(elemptr[4]); - tmp2 = GETJSAMPLE(elemptr[2]) + GETJSAMPLE(elemptr[3]); - - tmp10 = tmp0 + tmp2; - tmp12 = tmp0 - tmp2; - - tmp0 = GETJSAMPLE(elemptr[0]) - GETJSAMPLE(elemptr[5]); - tmp1 = GETJSAMPLE(elemptr[1]) - GETJSAMPLE(elemptr[4]); - tmp2 = GETJSAMPLE(elemptr[2]) - GETJSAMPLE(elemptr[3]); - - /* Apply unsigned->signed conversion */ - dataptr[0] = (DCTELEM) - ((tmp10 + tmp11 - 6 * CENTERJSAMPLE) << PASS1_BITS); - dataptr[2] = (DCTELEM) - DESCALE(MULTIPLY(tmp12, FIX(1.224744871)), /* c2 */ - CONST_BITS-PASS1_BITS); - dataptr[4] = (DCTELEM) - DESCALE(MULTIPLY(tmp10 - tmp11 - tmp11, FIX(0.707106781)), /* c4 */ - CONST_BITS-PASS1_BITS); - - /* Odd part */ - - tmp10 = DESCALE(MULTIPLY(tmp0 + tmp2, FIX(0.366025404)), /* c5 */ - CONST_BITS-PASS1_BITS); - - dataptr[1] = (DCTELEM) (tmp10 + ((tmp0 + tmp1) << PASS1_BITS)); - dataptr[3] = (DCTELEM) ((tmp0 - tmp1 - tmp2) << PASS1_BITS); - dataptr[5] = (DCTELEM) (tmp10 + ((tmp2 - tmp1) << PASS1_BITS)); - - dataptr += DCTSIZE; /* advance pointer to next row */ - } - - /* Pass 2: process columns. - * We remove the PASS1_BITS scaling, but leave the results scaled up - * by an overall factor of 8. - * We must also scale the output by (8/6)**2 = 16/9, which we fold - * into the constant multipliers: - * cK now represents sqrt(2) * cos(K*pi/12) * 16/9. - */ - - dataptr = data; - for (ctr = 0; ctr < 6; ctr++) { - /* Even part */ - - tmp0 = dataptr[DCTSIZE*0] + dataptr[DCTSIZE*5]; - tmp11 = dataptr[DCTSIZE*1] + dataptr[DCTSIZE*4]; - tmp2 = dataptr[DCTSIZE*2] + dataptr[DCTSIZE*3]; - - tmp10 = tmp0 + tmp2; - tmp12 = tmp0 - tmp2; - - tmp0 = dataptr[DCTSIZE*0] - dataptr[DCTSIZE*5]; - tmp1 = dataptr[DCTSIZE*1] - dataptr[DCTSIZE*4]; - tmp2 = dataptr[DCTSIZE*2] - dataptr[DCTSIZE*3]; - - dataptr[DCTSIZE*0] = (DCTELEM) - DESCALE(MULTIPLY(tmp10 + tmp11, FIX(1.777777778)), /* 16/9 */ - CONST_BITS+PASS1_BITS); - dataptr[DCTSIZE*2] = (DCTELEM) - DESCALE(MULTIPLY(tmp12, FIX(2.177324216)), /* c2 */ - CONST_BITS+PASS1_BITS); - dataptr[DCTSIZE*4] = (DCTELEM) - DESCALE(MULTIPLY(tmp10 - tmp11 - tmp11, FIX(1.257078722)), /* c4 */ - CONST_BITS+PASS1_BITS); - - /* Odd part */ - - tmp10 = MULTIPLY(tmp0 + tmp2, FIX(0.650711829)); /* c5 */ - - dataptr[DCTSIZE*1] = (DCTELEM) - DESCALE(tmp10 + MULTIPLY(tmp0 + tmp1, FIX(1.777777778)), /* 16/9 */ - CONST_BITS+PASS1_BITS); - dataptr[DCTSIZE*3] = (DCTELEM) - DESCALE(MULTIPLY(tmp0 - tmp1 - tmp2, FIX(1.777777778)), /* 16/9 */ - CONST_BITS+PASS1_BITS); - dataptr[DCTSIZE*5] = (DCTELEM) - DESCALE(tmp10 + MULTIPLY(tmp2 - tmp1, FIX(1.777777778)), /* 16/9 */ - CONST_BITS+PASS1_BITS); - - dataptr++; /* advance pointer to next column */ - } -} - - -/* - * Perform the forward DCT on a 5x5 sample block. - */ - -GLOBAL(void) -jpeg_fdct_5x5 (DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col) -{ - INT32 tmp0, tmp1, tmp2; - INT32 tmp10, tmp11; - DCTELEM *dataptr; - JSAMPROW elemptr; - int ctr; - SHIFT_TEMPS - - /* Pre-zero output coefficient block. */ - MEMZERO(data, SIZEOF(DCTELEM) * DCTSIZE2); - - /* Pass 1: process rows. */ - /* Note results are scaled up by sqrt(8) compared to a true DCT; */ - /* furthermore, we scale the results by 2**PASS1_BITS. */ - /* We scale the results further by 2 as part of output adaption */ - /* scaling for different DCT size. */ - /* cK represents sqrt(2) * cos(K*pi/10). */ - - dataptr = data; - for (ctr = 0; ctr < 5; ctr++) { - elemptr = sample_data[ctr] + start_col; - - /* Even part */ - - tmp0 = GETJSAMPLE(elemptr[0]) + GETJSAMPLE(elemptr[4]); - tmp1 = GETJSAMPLE(elemptr[1]) + GETJSAMPLE(elemptr[3]); - tmp2 = GETJSAMPLE(elemptr[2]); - - tmp10 = tmp0 + tmp1; - tmp11 = tmp0 - tmp1; - - tmp0 = GETJSAMPLE(elemptr[0]) - GETJSAMPLE(elemptr[4]); - tmp1 = GETJSAMPLE(elemptr[1]) - GETJSAMPLE(elemptr[3]); - - /* Apply unsigned->signed conversion */ - dataptr[0] = (DCTELEM) - ((tmp10 + tmp2 - 5 * CENTERJSAMPLE) << (PASS1_BITS+1)); - tmp11 = MULTIPLY(tmp11, FIX(0.790569415)); /* (c2+c4)/2 */ - tmp10 -= tmp2 << 2; - tmp10 = MULTIPLY(tmp10, FIX(0.353553391)); /* (c2-c4)/2 */ - dataptr[2] = (DCTELEM) DESCALE(tmp11 + tmp10, CONST_BITS-PASS1_BITS-1); - dataptr[4] = (DCTELEM) DESCALE(tmp11 - tmp10, CONST_BITS-PASS1_BITS-1); - - /* Odd part */ - - tmp10 = MULTIPLY(tmp0 + tmp1, FIX(0.831253876)); /* c3 */ - - dataptr[1] = (DCTELEM) - DESCALE(tmp10 + MULTIPLY(tmp0, FIX(0.513743148)), /* c1-c3 */ - CONST_BITS-PASS1_BITS-1); - dataptr[3] = (DCTELEM) - DESCALE(tmp10 - MULTIPLY(tmp1, FIX(2.176250899)), /* c1+c3 */ - CONST_BITS-PASS1_BITS-1); - - dataptr += DCTSIZE; /* advance pointer to next row */ - } - - /* Pass 2: process columns. - * We remove the PASS1_BITS scaling, but leave the results scaled up - * by an overall factor of 8. - * We must also scale the output by (8/5)**2 = 64/25, which we partially - * fold into the constant multipliers (other part was done in pass 1): - * cK now represents sqrt(2) * cos(K*pi/10) * 32/25. - */ - - dataptr = data; - for (ctr = 0; ctr < 5; ctr++) { - /* Even part */ - - tmp0 = dataptr[DCTSIZE*0] + dataptr[DCTSIZE*4]; - tmp1 = dataptr[DCTSIZE*1] + dataptr[DCTSIZE*3]; - tmp2 = dataptr[DCTSIZE*2]; - - tmp10 = tmp0 + tmp1; - tmp11 = tmp0 - tmp1; - - tmp0 = dataptr[DCTSIZE*0] - dataptr[DCTSIZE*4]; - tmp1 = dataptr[DCTSIZE*1] - dataptr[DCTSIZE*3]; - - dataptr[DCTSIZE*0] = (DCTELEM) - DESCALE(MULTIPLY(tmp10 + tmp2, FIX(1.28)), /* 32/25 */ - CONST_BITS+PASS1_BITS); - tmp11 = MULTIPLY(tmp11, FIX(1.011928851)); /* (c2+c4)/2 */ - tmp10 -= tmp2 << 2; - tmp10 = MULTIPLY(tmp10, FIX(0.452548340)); /* (c2-c4)/2 */ - dataptr[DCTSIZE*2] = (DCTELEM) DESCALE(tmp11 + tmp10, CONST_BITS+PASS1_BITS); - dataptr[DCTSIZE*4] = (DCTELEM) DESCALE(tmp11 - tmp10, CONST_BITS+PASS1_BITS); - - /* Odd part */ - - tmp10 = MULTIPLY(tmp0 + tmp1, FIX(1.064004961)); /* c3 */ - - dataptr[DCTSIZE*1] = (DCTELEM) - DESCALE(tmp10 + MULTIPLY(tmp0, FIX(0.657591230)), /* c1-c3 */ - CONST_BITS+PASS1_BITS); - dataptr[DCTSIZE*3] = (DCTELEM) - DESCALE(tmp10 - MULTIPLY(tmp1, FIX(2.785601151)), /* c1+c3 */ - CONST_BITS+PASS1_BITS); - - dataptr++; /* advance pointer to next column */ - } -} - - -/* - * Perform the forward DCT on a 4x4 sample block. - */ - -GLOBAL(void) -jpeg_fdct_4x4 (DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col) -{ - INT32 tmp0, tmp1; - INT32 tmp10, tmp11; - DCTELEM *dataptr; - JSAMPROW elemptr; - int ctr; - SHIFT_TEMPS - - /* Pre-zero output coefficient block. */ - MEMZERO(data, SIZEOF(DCTELEM) * DCTSIZE2); - - /* Pass 1: process rows. */ - /* Note results are scaled up by sqrt(8) compared to a true DCT; */ - /* furthermore, we scale the results by 2**PASS1_BITS. */ - /* We must also scale the output by (8/4)**2 = 2**2, which we add here. */ - /* cK represents sqrt(2) * cos(K*pi/16) [refers to 8-point FDCT]. */ - - dataptr = data; - for (ctr = 0; ctr < 4; ctr++) { - elemptr = sample_data[ctr] + start_col; - - /* Even part */ - - tmp0 = GETJSAMPLE(elemptr[0]) + GETJSAMPLE(elemptr[3]); - tmp1 = GETJSAMPLE(elemptr[1]) + GETJSAMPLE(elemptr[2]); - - tmp10 = GETJSAMPLE(elemptr[0]) - GETJSAMPLE(elemptr[3]); - tmp11 = GETJSAMPLE(elemptr[1]) - GETJSAMPLE(elemptr[2]); - - /* Apply unsigned->signed conversion */ - dataptr[0] = (DCTELEM) - ((tmp0 + tmp1 - 4 * CENTERJSAMPLE) << (PASS1_BITS+2)); - dataptr[2] = (DCTELEM) ((tmp0 - tmp1) << (PASS1_BITS+2)); - - /* Odd part */ - - tmp0 = MULTIPLY(tmp10 + tmp11, FIX_0_541196100); /* c6 */ - /* Add fudge factor here for final descale. */ - tmp0 += ONE << (CONST_BITS-PASS1_BITS-3); - - dataptr[1] = (DCTELEM) - RIGHT_SHIFT(tmp0 + MULTIPLY(tmp10, FIX_0_765366865), /* c2-c6 */ - CONST_BITS-PASS1_BITS-2); - dataptr[3] = (DCTELEM) - RIGHT_SHIFT(tmp0 - MULTIPLY(tmp11, FIX_1_847759065), /* c2+c6 */ - CONST_BITS-PASS1_BITS-2); - - dataptr += DCTSIZE; /* advance pointer to next row */ - } - - /* Pass 2: process columns. - * We remove the PASS1_BITS scaling, but leave the results scaled up - * by an overall factor of 8. - */ - - dataptr = data; - for (ctr = 0; ctr < 4; ctr++) { - /* Even part */ - - /* Add fudge factor here for final descale. */ - tmp0 = dataptr[DCTSIZE*0] + dataptr[DCTSIZE*3] + (ONE << (PASS1_BITS-1)); - tmp1 = dataptr[DCTSIZE*1] + dataptr[DCTSIZE*2]; - - tmp10 = dataptr[DCTSIZE*0] - dataptr[DCTSIZE*3]; - tmp11 = dataptr[DCTSIZE*1] - dataptr[DCTSIZE*2]; - - dataptr[DCTSIZE*0] = (DCTELEM) RIGHT_SHIFT(tmp0 + tmp1, PASS1_BITS); - dataptr[DCTSIZE*2] = (DCTELEM) RIGHT_SHIFT(tmp0 - tmp1, PASS1_BITS); - - /* Odd part */ - - tmp0 = MULTIPLY(tmp10 + tmp11, FIX_0_541196100); /* c6 */ - /* Add fudge factor here for final descale. */ - tmp0 += ONE << (CONST_BITS+PASS1_BITS-1); - - dataptr[DCTSIZE*1] = (DCTELEM) - RIGHT_SHIFT(tmp0 + MULTIPLY(tmp10, FIX_0_765366865), /* c2-c6 */ - CONST_BITS+PASS1_BITS); - dataptr[DCTSIZE*3] = (DCTELEM) - RIGHT_SHIFT(tmp0 - MULTIPLY(tmp11, FIX_1_847759065), /* c2+c6 */ - CONST_BITS+PASS1_BITS); - - dataptr++; /* advance pointer to next column */ - } -} - - -/* - * Perform the forward DCT on a 3x3 sample block. - */ - -GLOBAL(void) -jpeg_fdct_3x3 (DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col) -{ - INT32 tmp0, tmp1, tmp2; - DCTELEM *dataptr; - JSAMPROW elemptr; - int ctr; - SHIFT_TEMPS - - /* Pre-zero output coefficient block. */ - MEMZERO(data, SIZEOF(DCTELEM) * DCTSIZE2); - - /* Pass 1: process rows. */ - /* Note results are scaled up by sqrt(8) compared to a true DCT; */ - /* furthermore, we scale the results by 2**PASS1_BITS. */ - /* We scale the results further by 2**2 as part of output adaption */ - /* scaling for different DCT size. */ - /* cK represents sqrt(2) * cos(K*pi/6). */ - - dataptr = data; - for (ctr = 0; ctr < 3; ctr++) { - elemptr = sample_data[ctr] + start_col; - - /* Even part */ - - tmp0 = GETJSAMPLE(elemptr[0]) + GETJSAMPLE(elemptr[2]); - tmp1 = GETJSAMPLE(elemptr[1]); - - tmp2 = GETJSAMPLE(elemptr[0]) - GETJSAMPLE(elemptr[2]); - - /* Apply unsigned->signed conversion */ - dataptr[0] = (DCTELEM) - ((tmp0 + tmp1 - 3 * CENTERJSAMPLE) << (PASS1_BITS+2)); - dataptr[2] = (DCTELEM) - DESCALE(MULTIPLY(tmp0 - tmp1 - tmp1, FIX(0.707106781)), /* c2 */ - CONST_BITS-PASS1_BITS-2); - - /* Odd part */ - - dataptr[1] = (DCTELEM) - DESCALE(MULTIPLY(tmp2, FIX(1.224744871)), /* c1 */ - CONST_BITS-PASS1_BITS-2); - - dataptr += DCTSIZE; /* advance pointer to next row */ - } - - /* Pass 2: process columns. - * We remove the PASS1_BITS scaling, but leave the results scaled up - * by an overall factor of 8. - * We must also scale the output by (8/3)**2 = 64/9, which we partially - * fold into the constant multipliers (other part was done in pass 1): - * cK now represents sqrt(2) * cos(K*pi/6) * 16/9. - */ - - dataptr = data; - for (ctr = 0; ctr < 3; ctr++) { - /* Even part */ - - tmp0 = dataptr[DCTSIZE*0] + dataptr[DCTSIZE*2]; - tmp1 = dataptr[DCTSIZE*1]; - - tmp2 = dataptr[DCTSIZE*0] - dataptr[DCTSIZE*2]; - - dataptr[DCTSIZE*0] = (DCTELEM) - DESCALE(MULTIPLY(tmp0 + tmp1, FIX(1.777777778)), /* 16/9 */ - CONST_BITS+PASS1_BITS); - dataptr[DCTSIZE*2] = (DCTELEM) - DESCALE(MULTIPLY(tmp0 - tmp1 - tmp1, FIX(1.257078722)), /* c2 */ - CONST_BITS+PASS1_BITS); - - /* Odd part */ - - dataptr[DCTSIZE*1] = (DCTELEM) - DESCALE(MULTIPLY(tmp2, FIX(2.177324216)), /* c1 */ - CONST_BITS+PASS1_BITS); - - dataptr++; /* advance pointer to next column */ - } -} - - -/* - * Perform the forward DCT on a 2x2 sample block. - */ - -GLOBAL(void) -jpeg_fdct_2x2 (DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col) -{ - INT32 tmp0, tmp1, tmp2, tmp3; - JSAMPROW elemptr; - - /* Pre-zero output coefficient block. */ - MEMZERO(data, SIZEOF(DCTELEM) * DCTSIZE2); - - /* Pass 1: process rows. */ - /* Note results are scaled up by sqrt(8) compared to a true DCT. */ - - /* Row 0 */ - elemptr = sample_data[0] + start_col; - - tmp0 = GETJSAMPLE(elemptr[0]) + GETJSAMPLE(elemptr[1]); - tmp1 = GETJSAMPLE(elemptr[0]) - GETJSAMPLE(elemptr[1]); - - /* Row 1 */ - elemptr = sample_data[1] + start_col; - - tmp2 = GETJSAMPLE(elemptr[0]) + GETJSAMPLE(elemptr[1]); - tmp3 = GETJSAMPLE(elemptr[0]) - GETJSAMPLE(elemptr[1]); - - /* Pass 2: process columns. - * We leave the results scaled up by an overall factor of 8. - * We must also scale the output by (8/2)**2 = 2**4. - */ - - /* Column 0 */ - /* Apply unsigned->signed conversion */ - data[DCTSIZE*0] = (DCTELEM) ((tmp0 + tmp2 - 4 * CENTERJSAMPLE) << 4); - data[DCTSIZE*1] = (DCTELEM) ((tmp0 - tmp2) << 4); - - /* Column 1 */ - data[DCTSIZE*0+1] = (DCTELEM) ((tmp1 + tmp3) << 4); - data[DCTSIZE*1+1] = (DCTELEM) ((tmp1 - tmp3) << 4); -} - - -/* - * Perform the forward DCT on a 1x1 sample block. - */ - -GLOBAL(void) -jpeg_fdct_1x1 (DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col) -{ - /* Pre-zero output coefficient block. */ - MEMZERO(data, SIZEOF(DCTELEM) * DCTSIZE2); - - /* We leave the result scaled up by an overall factor of 8. */ - /* We must also scale the output by (8/1)**2 = 2**6. */ - /* Apply unsigned->signed conversion */ - data[0] = (DCTELEM) - ((GETJSAMPLE(sample_data[0][start_col]) - CENTERJSAMPLE) << 6); -} - - -/* - * Perform the forward DCT on a 9x9 sample block. - */ - -GLOBAL(void) -jpeg_fdct_9x9 (DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col) -{ - INT32 tmp0, tmp1, tmp2, tmp3, tmp4; - INT32 tmp10, tmp11, tmp12, tmp13; - INT32 z1, z2; - DCTELEM workspace[8]; - DCTELEM *dataptr; - DCTELEM *wsptr; - JSAMPROW elemptr; - int ctr; - SHIFT_TEMPS - - /* Pass 1: process rows. */ - /* Note results are scaled up by sqrt(8) compared to a true DCT; */ - /* we scale the results further by 2 as part of output adaption */ - /* scaling for different DCT size. */ - /* cK represents sqrt(2) * cos(K*pi/18). */ - - dataptr = data; - ctr = 0; - for (;;) { - elemptr = sample_data[ctr] + start_col; - - /* Even part */ - - tmp0 = GETJSAMPLE(elemptr[0]) + GETJSAMPLE(elemptr[8]); - tmp1 = GETJSAMPLE(elemptr[1]) + GETJSAMPLE(elemptr[7]); - tmp2 = GETJSAMPLE(elemptr[2]) + GETJSAMPLE(elemptr[6]); - tmp3 = GETJSAMPLE(elemptr[3]) + GETJSAMPLE(elemptr[5]); - tmp4 = GETJSAMPLE(elemptr[4]); - - tmp10 = GETJSAMPLE(elemptr[0]) - GETJSAMPLE(elemptr[8]); - tmp11 = GETJSAMPLE(elemptr[1]) - GETJSAMPLE(elemptr[7]); - tmp12 = GETJSAMPLE(elemptr[2]) - GETJSAMPLE(elemptr[6]); - tmp13 = GETJSAMPLE(elemptr[3]) - GETJSAMPLE(elemptr[5]); - - z1 = tmp0 + tmp2 + tmp3; - z2 = tmp1 + tmp4; - /* Apply unsigned->signed conversion */ - dataptr[0] = (DCTELEM) ((z1 + z2 - 9 * CENTERJSAMPLE) << 1); - dataptr[6] = (DCTELEM) - DESCALE(MULTIPLY(z1 - z2 - z2, FIX(0.707106781)), /* c6 */ - CONST_BITS-1); - z1 = MULTIPLY(tmp0 - tmp2, FIX(1.328926049)); /* c2 */ - z2 = MULTIPLY(tmp1 - tmp4 - tmp4, FIX(0.707106781)); /* c6 */ - dataptr[2] = (DCTELEM) - DESCALE(MULTIPLY(tmp2 - tmp3, FIX(1.083350441)) /* c4 */ - + z1 + z2, CONST_BITS-1); - dataptr[4] = (DCTELEM) - DESCALE(MULTIPLY(tmp3 - tmp0, FIX(0.245575608)) /* c8 */ - + z1 - z2, CONST_BITS-1); - - /* Odd part */ - - dataptr[3] = (DCTELEM) - DESCALE(MULTIPLY(tmp10 - tmp12 - tmp13, FIX(1.224744871)), /* c3 */ - CONST_BITS-1); - - tmp11 = MULTIPLY(tmp11, FIX(1.224744871)); /* c3 */ - tmp0 = MULTIPLY(tmp10 + tmp12, FIX(0.909038955)); /* c5 */ - tmp1 = MULTIPLY(tmp10 + tmp13, FIX(0.483689525)); /* c7 */ - - dataptr[1] = (DCTELEM) DESCALE(tmp11 + tmp0 + tmp1, CONST_BITS-1); - - tmp2 = MULTIPLY(tmp12 - tmp13, FIX(1.392728481)); /* c1 */ - - dataptr[5] = (DCTELEM) DESCALE(tmp0 - tmp11 - tmp2, CONST_BITS-1); - dataptr[7] = (DCTELEM) DESCALE(tmp1 - tmp11 + tmp2, CONST_BITS-1); - - ctr++; - - if (ctr != DCTSIZE) { - if (ctr == 9) - break; /* Done. */ - dataptr += DCTSIZE; /* advance pointer to next row */ - } else - dataptr = workspace; /* switch pointer to extended workspace */ - } - - /* Pass 2: process columns. - * We leave the results scaled up by an overall factor of 8. - * We must also scale the output by (8/9)**2 = 64/81, which we partially - * fold into the constant multipliers and final/initial shifting: - * cK now represents sqrt(2) * cos(K*pi/18) * 128/81. - */ - - dataptr = data; - wsptr = workspace; - for (ctr = DCTSIZE-1; ctr >= 0; ctr--) { - /* Even part */ - - tmp0 = dataptr[DCTSIZE*0] + wsptr[DCTSIZE*0]; - tmp1 = dataptr[DCTSIZE*1] + dataptr[DCTSIZE*7]; - tmp2 = dataptr[DCTSIZE*2] + dataptr[DCTSIZE*6]; - tmp3 = dataptr[DCTSIZE*3] + dataptr[DCTSIZE*5]; - tmp4 = dataptr[DCTSIZE*4]; - - tmp10 = dataptr[DCTSIZE*0] - wsptr[DCTSIZE*0]; - tmp11 = dataptr[DCTSIZE*1] - dataptr[DCTSIZE*7]; - tmp12 = dataptr[DCTSIZE*2] - dataptr[DCTSIZE*6]; - tmp13 = dataptr[DCTSIZE*3] - dataptr[DCTSIZE*5]; - - z1 = tmp0 + tmp2 + tmp3; - z2 = tmp1 + tmp4; - dataptr[DCTSIZE*0] = (DCTELEM) - DESCALE(MULTIPLY(z1 + z2, FIX(1.580246914)), /* 128/81 */ - CONST_BITS+2); - dataptr[DCTSIZE*6] = (DCTELEM) - DESCALE(MULTIPLY(z1 - z2 - z2, FIX(1.117403309)), /* c6 */ - CONST_BITS+2); - z1 = MULTIPLY(tmp0 - tmp2, FIX(2.100031287)); /* c2 */ - z2 = MULTIPLY(tmp1 - tmp4 - tmp4, FIX(1.117403309)); /* c6 */ - dataptr[DCTSIZE*2] = (DCTELEM) - DESCALE(MULTIPLY(tmp2 - tmp3, FIX(1.711961190)) /* c4 */ - + z1 + z2, CONST_BITS+2); - dataptr[DCTSIZE*4] = (DCTELEM) - DESCALE(MULTIPLY(tmp3 - tmp0, FIX(0.388070096)) /* c8 */ - + z1 - z2, CONST_BITS+2); - - /* Odd part */ - - dataptr[DCTSIZE*3] = (DCTELEM) - DESCALE(MULTIPLY(tmp10 - tmp12 - tmp13, FIX(1.935399303)), /* c3 */ - CONST_BITS+2); - - tmp11 = MULTIPLY(tmp11, FIX(1.935399303)); /* c3 */ - tmp0 = MULTIPLY(tmp10 + tmp12, FIX(1.436506004)); /* c5 */ - tmp1 = MULTIPLY(tmp10 + tmp13, FIX(0.764348879)); /* c7 */ - - dataptr[DCTSIZE*1] = (DCTELEM) - DESCALE(tmp11 + tmp0 + tmp1, CONST_BITS+2); - - tmp2 = MULTIPLY(tmp12 - tmp13, FIX(2.200854883)); /* c1 */ - - dataptr[DCTSIZE*5] = (DCTELEM) - DESCALE(tmp0 - tmp11 - tmp2, CONST_BITS+2); - dataptr[DCTSIZE*7] = (DCTELEM) - DESCALE(tmp1 - tmp11 + tmp2, CONST_BITS+2); - - dataptr++; /* advance pointer to next column */ - wsptr++; /* advance pointer to next column */ - } -} - - -/* - * Perform the forward DCT on a 10x10 sample block. - */ - -GLOBAL(void) -jpeg_fdct_10x10 (DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col) -{ - INT32 tmp0, tmp1, tmp2, tmp3, tmp4; - INT32 tmp10, tmp11, tmp12, tmp13, tmp14; - DCTELEM workspace[8*2]; - DCTELEM *dataptr; - DCTELEM *wsptr; - JSAMPROW elemptr; - int ctr; - SHIFT_TEMPS - - /* Pass 1: process rows. */ - /* Note results are scaled up by sqrt(8) compared to a true DCT; */ - /* we scale the results further by 2 as part of output adaption */ - /* scaling for different DCT size. */ - /* cK represents sqrt(2) * cos(K*pi/20). */ - - dataptr = data; - ctr = 0; - for (;;) { - elemptr = sample_data[ctr] + start_col; - - /* Even part */ - - tmp0 = GETJSAMPLE(elemptr[0]) + GETJSAMPLE(elemptr[9]); - tmp1 = GETJSAMPLE(elemptr[1]) + GETJSAMPLE(elemptr[8]); - tmp12 = GETJSAMPLE(elemptr[2]) + GETJSAMPLE(elemptr[7]); - tmp3 = GETJSAMPLE(elemptr[3]) + GETJSAMPLE(elemptr[6]); - tmp4 = GETJSAMPLE(elemptr[4]) + GETJSAMPLE(elemptr[5]); - - tmp10 = tmp0 + tmp4; - tmp13 = tmp0 - tmp4; - tmp11 = tmp1 + tmp3; - tmp14 = tmp1 - tmp3; - - tmp0 = GETJSAMPLE(elemptr[0]) - GETJSAMPLE(elemptr[9]); - tmp1 = GETJSAMPLE(elemptr[1]) - GETJSAMPLE(elemptr[8]); - tmp2 = GETJSAMPLE(elemptr[2]) - GETJSAMPLE(elemptr[7]); - tmp3 = GETJSAMPLE(elemptr[3]) - GETJSAMPLE(elemptr[6]); - tmp4 = GETJSAMPLE(elemptr[4]) - GETJSAMPLE(elemptr[5]); - - /* Apply unsigned->signed conversion */ - dataptr[0] = (DCTELEM) - ((tmp10 + tmp11 + tmp12 - 10 * CENTERJSAMPLE) << 1); - tmp12 += tmp12; - dataptr[4] = (DCTELEM) - DESCALE(MULTIPLY(tmp10 - tmp12, FIX(1.144122806)) - /* c4 */ - MULTIPLY(tmp11 - tmp12, FIX(0.437016024)), /* c8 */ - CONST_BITS-1); - tmp10 = MULTIPLY(tmp13 + tmp14, FIX(0.831253876)); /* c6 */ - dataptr[2] = (DCTELEM) - DESCALE(tmp10 + MULTIPLY(tmp13, FIX(0.513743148)), /* c2-c6 */ - CONST_BITS-1); - dataptr[6] = (DCTELEM) - DESCALE(tmp10 - MULTIPLY(tmp14, FIX(2.176250899)), /* c2+c6 */ - CONST_BITS-1); - - /* Odd part */ - - tmp10 = tmp0 + tmp4; - tmp11 = tmp1 - tmp3; - dataptr[5] = (DCTELEM) ((tmp10 - tmp11 - tmp2) << 1); - tmp2 <<= CONST_BITS; - dataptr[1] = (DCTELEM) - DESCALE(MULTIPLY(tmp0, FIX(1.396802247)) + /* c1 */ - MULTIPLY(tmp1, FIX(1.260073511)) + tmp2 + /* c3 */ - MULTIPLY(tmp3, FIX(0.642039522)) + /* c7 */ - MULTIPLY(tmp4, FIX(0.221231742)), /* c9 */ - CONST_BITS-1); - tmp12 = MULTIPLY(tmp0 - tmp4, FIX(0.951056516)) - /* (c3+c7)/2 */ - MULTIPLY(tmp1 + tmp3, FIX(0.587785252)); /* (c1-c9)/2 */ - tmp13 = MULTIPLY(tmp10 + tmp11, FIX(0.309016994)) + /* (c3-c7)/2 */ - (tmp11 << (CONST_BITS - 1)) - tmp2; - dataptr[3] = (DCTELEM) DESCALE(tmp12 + tmp13, CONST_BITS-1); - dataptr[7] = (DCTELEM) DESCALE(tmp12 - tmp13, CONST_BITS-1); - - ctr++; - - if (ctr != DCTSIZE) { - if (ctr == 10) - break; /* Done. */ - dataptr += DCTSIZE; /* advance pointer to next row */ - } else - dataptr = workspace; /* switch pointer to extended workspace */ - } - - /* Pass 2: process columns. - * We leave the results scaled up by an overall factor of 8. - * We must also scale the output by (8/10)**2 = 16/25, which we partially - * fold into the constant multipliers and final/initial shifting: - * cK now represents sqrt(2) * cos(K*pi/20) * 32/25. - */ - - dataptr = data; - wsptr = workspace; - for (ctr = DCTSIZE-1; ctr >= 0; ctr--) { - /* Even part */ - - tmp0 = dataptr[DCTSIZE*0] + wsptr[DCTSIZE*1]; - tmp1 = dataptr[DCTSIZE*1] + wsptr[DCTSIZE*0]; - tmp12 = dataptr[DCTSIZE*2] + dataptr[DCTSIZE*7]; - tmp3 = dataptr[DCTSIZE*3] + dataptr[DCTSIZE*6]; - tmp4 = dataptr[DCTSIZE*4] + dataptr[DCTSIZE*5]; - - tmp10 = tmp0 + tmp4; - tmp13 = tmp0 - tmp4; - tmp11 = tmp1 + tmp3; - tmp14 = tmp1 - tmp3; - - tmp0 = dataptr[DCTSIZE*0] - wsptr[DCTSIZE*1]; - tmp1 = dataptr[DCTSIZE*1] - wsptr[DCTSIZE*0]; - tmp2 = dataptr[DCTSIZE*2] - dataptr[DCTSIZE*7]; - tmp3 = dataptr[DCTSIZE*3] - dataptr[DCTSIZE*6]; - tmp4 = dataptr[DCTSIZE*4] - dataptr[DCTSIZE*5]; - - dataptr[DCTSIZE*0] = (DCTELEM) - DESCALE(MULTIPLY(tmp10 + tmp11 + tmp12, FIX(1.28)), /* 32/25 */ - CONST_BITS+2); - tmp12 += tmp12; - dataptr[DCTSIZE*4] = (DCTELEM) - DESCALE(MULTIPLY(tmp10 - tmp12, FIX(1.464477191)) - /* c4 */ - MULTIPLY(tmp11 - tmp12, FIX(0.559380511)), /* c8 */ - CONST_BITS+2); - tmp10 = MULTIPLY(tmp13 + tmp14, FIX(1.064004961)); /* c6 */ - dataptr[DCTSIZE*2] = (DCTELEM) - DESCALE(tmp10 + MULTIPLY(tmp13, FIX(0.657591230)), /* c2-c6 */ - CONST_BITS+2); - dataptr[DCTSIZE*6] = (DCTELEM) - DESCALE(tmp10 - MULTIPLY(tmp14, FIX(2.785601151)), /* c2+c6 */ - CONST_BITS+2); - - /* Odd part */ - - tmp10 = tmp0 + tmp4; - tmp11 = tmp1 - tmp3; - dataptr[DCTSIZE*5] = (DCTELEM) - DESCALE(MULTIPLY(tmp10 - tmp11 - tmp2, FIX(1.28)), /* 32/25 */ - CONST_BITS+2); - tmp2 = MULTIPLY(tmp2, FIX(1.28)); /* 32/25 */ - dataptr[DCTSIZE*1] = (DCTELEM) - DESCALE(MULTIPLY(tmp0, FIX(1.787906876)) + /* c1 */ - MULTIPLY(tmp1, FIX(1.612894094)) + tmp2 + /* c3 */ - MULTIPLY(tmp3, FIX(0.821810588)) + /* c7 */ - MULTIPLY(tmp4, FIX(0.283176630)), /* c9 */ - CONST_BITS+2); - tmp12 = MULTIPLY(tmp0 - tmp4, FIX(1.217352341)) - /* (c3+c7)/2 */ - MULTIPLY(tmp1 + tmp3, FIX(0.752365123)); /* (c1-c9)/2 */ - tmp13 = MULTIPLY(tmp10 + tmp11, FIX(0.395541753)) + /* (c3-c7)/2 */ - MULTIPLY(tmp11, FIX(0.64)) - tmp2; /* 16/25 */ - dataptr[DCTSIZE*3] = (DCTELEM) DESCALE(tmp12 + tmp13, CONST_BITS+2); - dataptr[DCTSIZE*7] = (DCTELEM) DESCALE(tmp12 - tmp13, CONST_BITS+2); - - dataptr++; /* advance pointer to next column */ - wsptr++; /* advance pointer to next column */ - } -} - - -/* - * Perform the forward DCT on an 11x11 sample block. - */ - -GLOBAL(void) -jpeg_fdct_11x11 (DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col) -{ - INT32 tmp0, tmp1, tmp2, tmp3, tmp4, tmp5; - INT32 tmp10, tmp11, tmp12, tmp13, tmp14; - INT32 z1, z2, z3; - DCTELEM workspace[8*3]; - DCTELEM *dataptr; - DCTELEM *wsptr; - JSAMPROW elemptr; - int ctr; - SHIFT_TEMPS - - /* Pass 1: process rows. */ - /* Note results are scaled up by sqrt(8) compared to a true DCT; */ - /* we scale the results further by 2 as part of output adaption */ - /* scaling for different DCT size. */ - /* cK represents sqrt(2) * cos(K*pi/22). */ - - dataptr = data; - ctr = 0; - for (;;) { - elemptr = sample_data[ctr] + start_col; - - /* Even part */ - - tmp0 = GETJSAMPLE(elemptr[0]) + GETJSAMPLE(elemptr[10]); - tmp1 = GETJSAMPLE(elemptr[1]) + GETJSAMPLE(elemptr[9]); - tmp2 = GETJSAMPLE(elemptr[2]) + GETJSAMPLE(elemptr[8]); - tmp3 = GETJSAMPLE(elemptr[3]) + GETJSAMPLE(elemptr[7]); - tmp4 = GETJSAMPLE(elemptr[4]) + GETJSAMPLE(elemptr[6]); - tmp5 = GETJSAMPLE(elemptr[5]); - - tmp10 = GETJSAMPLE(elemptr[0]) - GETJSAMPLE(elemptr[10]); - tmp11 = GETJSAMPLE(elemptr[1]) - GETJSAMPLE(elemptr[9]); - tmp12 = GETJSAMPLE(elemptr[2]) - GETJSAMPLE(elemptr[8]); - tmp13 = GETJSAMPLE(elemptr[3]) - GETJSAMPLE(elemptr[7]); - tmp14 = GETJSAMPLE(elemptr[4]) - GETJSAMPLE(elemptr[6]); - - /* Apply unsigned->signed conversion */ - dataptr[0] = (DCTELEM) - ((tmp0 + tmp1 + tmp2 + tmp3 + tmp4 + tmp5 - 11 * CENTERJSAMPLE) << 1); - tmp5 += tmp5; - tmp0 -= tmp5; - tmp1 -= tmp5; - tmp2 -= tmp5; - tmp3 -= tmp5; - tmp4 -= tmp5; - z1 = MULTIPLY(tmp0 + tmp3, FIX(1.356927976)) + /* c2 */ - MULTIPLY(tmp2 + tmp4, FIX(0.201263574)); /* c10 */ - z2 = MULTIPLY(tmp1 - tmp3, FIX(0.926112931)); /* c6 */ - z3 = MULTIPLY(tmp0 - tmp1, FIX(1.189712156)); /* c4 */ - dataptr[2] = (DCTELEM) - DESCALE(z1 + z2 - MULTIPLY(tmp3, FIX(1.018300590)) /* c2+c8-c6 */ - - MULTIPLY(tmp4, FIX(1.390975730)), /* c4+c10 */ - CONST_BITS-1); - dataptr[4] = (DCTELEM) - DESCALE(z2 + z3 + MULTIPLY(tmp1, FIX(0.062335650)) /* c4-c6-c10 */ - - MULTIPLY(tmp2, FIX(1.356927976)) /* c2 */ - + MULTIPLY(tmp4, FIX(0.587485545)), /* c8 */ - CONST_BITS-1); - dataptr[6] = (DCTELEM) - DESCALE(z1 + z3 - MULTIPLY(tmp0, FIX(1.620527200)) /* c2+c4-c6 */ - - MULTIPLY(tmp2, FIX(0.788749120)), /* c8+c10 */ - CONST_BITS-1); - - /* Odd part */ - - tmp1 = MULTIPLY(tmp10 + tmp11, FIX(1.286413905)); /* c3 */ - tmp2 = MULTIPLY(tmp10 + tmp12, FIX(1.068791298)); /* c5 */ - tmp3 = MULTIPLY(tmp10 + tmp13, FIX(0.764581576)); /* c7 */ - tmp0 = tmp1 + tmp2 + tmp3 - MULTIPLY(tmp10, FIX(1.719967871)) /* c7+c5+c3-c1 */ - + MULTIPLY(tmp14, FIX(0.398430003)); /* c9 */ - tmp4 = MULTIPLY(tmp11 + tmp12, - FIX(0.764581576)); /* -c7 */ - tmp5 = MULTIPLY(tmp11 + tmp13, - FIX(1.399818907)); /* -c1 */ - tmp1 += tmp4 + tmp5 + MULTIPLY(tmp11, FIX(1.276416582)) /* c9+c7+c1-c3 */ - - MULTIPLY(tmp14, FIX(1.068791298)); /* c5 */ - tmp10 = MULTIPLY(tmp12 + tmp13, FIX(0.398430003)); /* c9 */ - tmp2 += tmp4 + tmp10 - MULTIPLY(tmp12, FIX(1.989053629)) /* c9+c5+c3-c7 */ - + MULTIPLY(tmp14, FIX(1.399818907)); /* c1 */ - tmp3 += tmp5 + tmp10 + MULTIPLY(tmp13, FIX(1.305598626)) /* c1+c5-c9-c7 */ - - MULTIPLY(tmp14, FIX(1.286413905)); /* c3 */ - - dataptr[1] = (DCTELEM) DESCALE(tmp0, CONST_BITS-1); - dataptr[3] = (DCTELEM) DESCALE(tmp1, CONST_BITS-1); - dataptr[5] = (DCTELEM) DESCALE(tmp2, CONST_BITS-1); - dataptr[7] = (DCTELEM) DESCALE(tmp3, CONST_BITS-1); - - ctr++; - - if (ctr != DCTSIZE) { - if (ctr == 11) - break; /* Done. */ - dataptr += DCTSIZE; /* advance pointer to next row */ - } else - dataptr = workspace; /* switch pointer to extended workspace */ - } - - /* Pass 2: process columns. - * We leave the results scaled up by an overall factor of 8. - * We must also scale the output by (8/11)**2 = 64/121, which we partially - * fold into the constant multipliers and final/initial shifting: - * cK now represents sqrt(2) * cos(K*pi/22) * 128/121. - */ - - dataptr = data; - wsptr = workspace; - for (ctr = DCTSIZE-1; ctr >= 0; ctr--) { - /* Even part */ - - tmp0 = dataptr[DCTSIZE*0] + wsptr[DCTSIZE*2]; - tmp1 = dataptr[DCTSIZE*1] + wsptr[DCTSIZE*1]; - tmp2 = dataptr[DCTSIZE*2] + wsptr[DCTSIZE*0]; - tmp3 = dataptr[DCTSIZE*3] + dataptr[DCTSIZE*7]; - tmp4 = dataptr[DCTSIZE*4] + dataptr[DCTSIZE*6]; - tmp5 = dataptr[DCTSIZE*5]; - - tmp10 = dataptr[DCTSIZE*0] - wsptr[DCTSIZE*2]; - tmp11 = dataptr[DCTSIZE*1] - wsptr[DCTSIZE*1]; - tmp12 = dataptr[DCTSIZE*2] - wsptr[DCTSIZE*0]; - tmp13 = dataptr[DCTSIZE*3] - dataptr[DCTSIZE*7]; - tmp14 = dataptr[DCTSIZE*4] - dataptr[DCTSIZE*6]; - - dataptr[DCTSIZE*0] = (DCTELEM) - DESCALE(MULTIPLY(tmp0 + tmp1 + tmp2 + tmp3 + tmp4 + tmp5, - FIX(1.057851240)), /* 128/121 */ - CONST_BITS+2); - tmp5 += tmp5; - tmp0 -= tmp5; - tmp1 -= tmp5; - tmp2 -= tmp5; - tmp3 -= tmp5; - tmp4 -= tmp5; - z1 = MULTIPLY(tmp0 + tmp3, FIX(1.435427942)) + /* c2 */ - MULTIPLY(tmp2 + tmp4, FIX(0.212906922)); /* c10 */ - z2 = MULTIPLY(tmp1 - tmp3, FIX(0.979689713)); /* c6 */ - z3 = MULTIPLY(tmp0 - tmp1, FIX(1.258538479)); /* c4 */ - dataptr[DCTSIZE*2] = (DCTELEM) - DESCALE(z1 + z2 - MULTIPLY(tmp3, FIX(1.077210542)) /* c2+c8-c6 */ - - MULTIPLY(tmp4, FIX(1.471445400)), /* c4+c10 */ - CONST_BITS+2); - dataptr[DCTSIZE*4] = (DCTELEM) - DESCALE(z2 + z3 + MULTIPLY(tmp1, FIX(0.065941844)) /* c4-c6-c10 */ - - MULTIPLY(tmp2, FIX(1.435427942)) /* c2 */ - + MULTIPLY(tmp4, FIX(0.621472312)), /* c8 */ - CONST_BITS+2); - dataptr[DCTSIZE*6] = (DCTELEM) - DESCALE(z1 + z3 - MULTIPLY(tmp0, FIX(1.714276708)) /* c2+c4-c6 */ - - MULTIPLY(tmp2, FIX(0.834379234)), /* c8+c10 */ - CONST_BITS+2); - - /* Odd part */ - - tmp1 = MULTIPLY(tmp10 + tmp11, FIX(1.360834544)); /* c3 */ - tmp2 = MULTIPLY(tmp10 + tmp12, FIX(1.130622199)); /* c5 */ - tmp3 = MULTIPLY(tmp10 + tmp13, FIX(0.808813568)); /* c7 */ - tmp0 = tmp1 + tmp2 + tmp3 - MULTIPLY(tmp10, FIX(1.819470145)) /* c7+c5+c3-c1 */ - + MULTIPLY(tmp14, FIX(0.421479672)); /* c9 */ - tmp4 = MULTIPLY(tmp11 + tmp12, - FIX(0.808813568)); /* -c7 */ - tmp5 = MULTIPLY(tmp11 + tmp13, - FIX(1.480800167)); /* -c1 */ - tmp1 += tmp4 + tmp5 + MULTIPLY(tmp11, FIX(1.350258864)) /* c9+c7+c1-c3 */ - - MULTIPLY(tmp14, FIX(1.130622199)); /* c5 */ - tmp10 = MULTIPLY(tmp12 + tmp13, FIX(0.421479672)); /* c9 */ - tmp2 += tmp4 + tmp10 - MULTIPLY(tmp12, FIX(2.104122847)) /* c9+c5+c3-c7 */ - + MULTIPLY(tmp14, FIX(1.480800167)); /* c1 */ - tmp3 += tmp5 + tmp10 + MULTIPLY(tmp13, FIX(1.381129125)) /* c1+c5-c9-c7 */ - - MULTIPLY(tmp14, FIX(1.360834544)); /* c3 */ - - dataptr[DCTSIZE*1] = (DCTELEM) DESCALE(tmp0, CONST_BITS+2); - dataptr[DCTSIZE*3] = (DCTELEM) DESCALE(tmp1, CONST_BITS+2); - dataptr[DCTSIZE*5] = (DCTELEM) DESCALE(tmp2, CONST_BITS+2); - dataptr[DCTSIZE*7] = (DCTELEM) DESCALE(tmp3, CONST_BITS+2); - - dataptr++; /* advance pointer to next column */ - wsptr++; /* advance pointer to next column */ - } -} - - -/* - * Perform the forward DCT on a 12x12 sample block. - */ - -GLOBAL(void) -jpeg_fdct_12x12 (DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col) -{ - INT32 tmp0, tmp1, tmp2, tmp3, tmp4, tmp5; - INT32 tmp10, tmp11, tmp12, tmp13, tmp14, tmp15; - DCTELEM workspace[8*4]; - DCTELEM *dataptr; - DCTELEM *wsptr; - JSAMPROW elemptr; - int ctr; - SHIFT_TEMPS - - /* Pass 1: process rows. */ - /* Note results are scaled up by sqrt(8) compared to a true DCT. */ - /* cK represents sqrt(2) * cos(K*pi/24). */ - - dataptr = data; - ctr = 0; - for (;;) { - elemptr = sample_data[ctr] + start_col; - - /* Even part */ - - tmp0 = GETJSAMPLE(elemptr[0]) + GETJSAMPLE(elemptr[11]); - tmp1 = GETJSAMPLE(elemptr[1]) + GETJSAMPLE(elemptr[10]); - tmp2 = GETJSAMPLE(elemptr[2]) + GETJSAMPLE(elemptr[9]); - tmp3 = GETJSAMPLE(elemptr[3]) + GETJSAMPLE(elemptr[8]); - tmp4 = GETJSAMPLE(elemptr[4]) + GETJSAMPLE(elemptr[7]); - tmp5 = GETJSAMPLE(elemptr[5]) + GETJSAMPLE(elemptr[6]); - - tmp10 = tmp0 + tmp5; - tmp13 = tmp0 - tmp5; - tmp11 = tmp1 + tmp4; - tmp14 = tmp1 - tmp4; - tmp12 = tmp2 + tmp3; - tmp15 = tmp2 - tmp3; - - tmp0 = GETJSAMPLE(elemptr[0]) - GETJSAMPLE(elemptr[11]); - tmp1 = GETJSAMPLE(elemptr[1]) - GETJSAMPLE(elemptr[10]); - tmp2 = GETJSAMPLE(elemptr[2]) - GETJSAMPLE(elemptr[9]); - tmp3 = GETJSAMPLE(elemptr[3]) - GETJSAMPLE(elemptr[8]); - tmp4 = GETJSAMPLE(elemptr[4]) - GETJSAMPLE(elemptr[7]); - tmp5 = GETJSAMPLE(elemptr[5]) - GETJSAMPLE(elemptr[6]); - - /* Apply unsigned->signed conversion */ - dataptr[0] = (DCTELEM) (tmp10 + tmp11 + tmp12 - 12 * CENTERJSAMPLE); - dataptr[6] = (DCTELEM) (tmp13 - tmp14 - tmp15); - dataptr[4] = (DCTELEM) - DESCALE(MULTIPLY(tmp10 - tmp12, FIX(1.224744871)), /* c4 */ - CONST_BITS); - dataptr[2] = (DCTELEM) - DESCALE(tmp14 - tmp15 + MULTIPLY(tmp13 + tmp15, FIX(1.366025404)), /* c2 */ - CONST_BITS); - - /* Odd part */ - - tmp10 = MULTIPLY(tmp1 + tmp4, FIX_0_541196100); /* c9 */ - tmp14 = tmp10 + MULTIPLY(tmp1, FIX_0_765366865); /* c3-c9 */ - tmp15 = tmp10 - MULTIPLY(tmp4, FIX_1_847759065); /* c3+c9 */ - tmp12 = MULTIPLY(tmp0 + tmp2, FIX(1.121971054)); /* c5 */ - tmp13 = MULTIPLY(tmp0 + tmp3, FIX(0.860918669)); /* c7 */ - tmp10 = tmp12 + tmp13 + tmp14 - MULTIPLY(tmp0, FIX(0.580774953)) /* c5+c7-c1 */ - + MULTIPLY(tmp5, FIX(0.184591911)); /* c11 */ - tmp11 = MULTIPLY(tmp2 + tmp3, - FIX(0.184591911)); /* -c11 */ - tmp12 += tmp11 - tmp15 - MULTIPLY(tmp2, FIX(2.339493912)) /* c1+c5-c11 */ - + MULTIPLY(tmp5, FIX(0.860918669)); /* c7 */ - tmp13 += tmp11 - tmp14 + MULTIPLY(tmp3, FIX(0.725788011)) /* c1+c11-c7 */ - - MULTIPLY(tmp5, FIX(1.121971054)); /* c5 */ - tmp11 = tmp15 + MULTIPLY(tmp0 - tmp3, FIX(1.306562965)) /* c3 */ - - MULTIPLY(tmp2 + tmp5, FIX_0_541196100); /* c9 */ - - dataptr[1] = (DCTELEM) DESCALE(tmp10, CONST_BITS); - dataptr[3] = (DCTELEM) DESCALE(tmp11, CONST_BITS); - dataptr[5] = (DCTELEM) DESCALE(tmp12, CONST_BITS); - dataptr[7] = (DCTELEM) DESCALE(tmp13, CONST_BITS); - - ctr++; - - if (ctr != DCTSIZE) { - if (ctr == 12) - break; /* Done. */ - dataptr += DCTSIZE; /* advance pointer to next row */ - } else - dataptr = workspace; /* switch pointer to extended workspace */ - } - - /* Pass 2: process columns. - * We leave the results scaled up by an overall factor of 8. - * We must also scale the output by (8/12)**2 = 4/9, which we partially - * fold into the constant multipliers and final shifting: - * cK now represents sqrt(2) * cos(K*pi/24) * 8/9. - */ - - dataptr = data; - wsptr = workspace; - for (ctr = DCTSIZE-1; ctr >= 0; ctr--) { - /* Even part */ - - tmp0 = dataptr[DCTSIZE*0] + wsptr[DCTSIZE*3]; - tmp1 = dataptr[DCTSIZE*1] + wsptr[DCTSIZE*2]; - tmp2 = dataptr[DCTSIZE*2] + wsptr[DCTSIZE*1]; - tmp3 = dataptr[DCTSIZE*3] + wsptr[DCTSIZE*0]; - tmp4 = dataptr[DCTSIZE*4] + dataptr[DCTSIZE*7]; - tmp5 = dataptr[DCTSIZE*5] + dataptr[DCTSIZE*6]; - - tmp10 = tmp0 + tmp5; - tmp13 = tmp0 - tmp5; - tmp11 = tmp1 + tmp4; - tmp14 = tmp1 - tmp4; - tmp12 = tmp2 + tmp3; - tmp15 = tmp2 - tmp3; - - tmp0 = dataptr[DCTSIZE*0] - wsptr[DCTSIZE*3]; - tmp1 = dataptr[DCTSIZE*1] - wsptr[DCTSIZE*2]; - tmp2 = dataptr[DCTSIZE*2] - wsptr[DCTSIZE*1]; - tmp3 = dataptr[DCTSIZE*3] - wsptr[DCTSIZE*0]; - tmp4 = dataptr[DCTSIZE*4] - dataptr[DCTSIZE*7]; - tmp5 = dataptr[DCTSIZE*5] - dataptr[DCTSIZE*6]; - - dataptr[DCTSIZE*0] = (DCTELEM) - DESCALE(MULTIPLY(tmp10 + tmp11 + tmp12, FIX(0.888888889)), /* 8/9 */ - CONST_BITS+1); - dataptr[DCTSIZE*6] = (DCTELEM) - DESCALE(MULTIPLY(tmp13 - tmp14 - tmp15, FIX(0.888888889)), /* 8/9 */ - CONST_BITS+1); - dataptr[DCTSIZE*4] = (DCTELEM) - DESCALE(MULTIPLY(tmp10 - tmp12, FIX(1.088662108)), /* c4 */ - CONST_BITS+1); - dataptr[DCTSIZE*2] = (DCTELEM) - DESCALE(MULTIPLY(tmp14 - tmp15, FIX(0.888888889)) + /* 8/9 */ - MULTIPLY(tmp13 + tmp15, FIX(1.214244803)), /* c2 */ - CONST_BITS+1); - - /* Odd part */ - - tmp10 = MULTIPLY(tmp1 + tmp4, FIX(0.481063200)); /* c9 */ - tmp14 = tmp10 + MULTIPLY(tmp1, FIX(0.680326102)); /* c3-c9 */ - tmp15 = tmp10 - MULTIPLY(tmp4, FIX(1.642452502)); /* c3+c9 */ - tmp12 = MULTIPLY(tmp0 + tmp2, FIX(0.997307603)); /* c5 */ - tmp13 = MULTIPLY(tmp0 + tmp3, FIX(0.765261039)); /* c7 */ - tmp10 = tmp12 + tmp13 + tmp14 - MULTIPLY(tmp0, FIX(0.516244403)) /* c5+c7-c1 */ - + MULTIPLY(tmp5, FIX(0.164081699)); /* c11 */ - tmp11 = MULTIPLY(tmp2 + tmp3, - FIX(0.164081699)); /* -c11 */ - tmp12 += tmp11 - tmp15 - MULTIPLY(tmp2, FIX(2.079550144)) /* c1+c5-c11 */ - + MULTIPLY(tmp5, FIX(0.765261039)); /* c7 */ - tmp13 += tmp11 - tmp14 + MULTIPLY(tmp3, FIX(0.645144899)) /* c1+c11-c7 */ - - MULTIPLY(tmp5, FIX(0.997307603)); /* c5 */ - tmp11 = tmp15 + MULTIPLY(tmp0 - tmp3, FIX(1.161389302)) /* c3 */ - - MULTIPLY(tmp2 + tmp5, FIX(0.481063200)); /* c9 */ - - dataptr[DCTSIZE*1] = (DCTELEM) DESCALE(tmp10, CONST_BITS+1); - dataptr[DCTSIZE*3] = (DCTELEM) DESCALE(tmp11, CONST_BITS+1); - dataptr[DCTSIZE*5] = (DCTELEM) DESCALE(tmp12, CONST_BITS+1); - dataptr[DCTSIZE*7] = (DCTELEM) DESCALE(tmp13, CONST_BITS+1); - - dataptr++; /* advance pointer to next column */ - wsptr++; /* advance pointer to next column */ - } -} - - -/* - * Perform the forward DCT on a 13x13 sample block. - */ - -GLOBAL(void) -jpeg_fdct_13x13 (DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col) -{ - INT32 tmp0, tmp1, tmp2, tmp3, tmp4, tmp5, tmp6; - INT32 tmp10, tmp11, tmp12, tmp13, tmp14, tmp15; - INT32 z1, z2; - DCTELEM workspace[8*5]; - DCTELEM *dataptr; - DCTELEM *wsptr; - JSAMPROW elemptr; - int ctr; - SHIFT_TEMPS - - /* Pass 1: process rows. */ - /* Note results are scaled up by sqrt(8) compared to a true DCT. */ - /* cK represents sqrt(2) * cos(K*pi/26). */ - - dataptr = data; - ctr = 0; - for (;;) { - elemptr = sample_data[ctr] + start_col; - - /* Even part */ - - tmp0 = GETJSAMPLE(elemptr[0]) + GETJSAMPLE(elemptr[12]); - tmp1 = GETJSAMPLE(elemptr[1]) + GETJSAMPLE(elemptr[11]); - tmp2 = GETJSAMPLE(elemptr[2]) + GETJSAMPLE(elemptr[10]); - tmp3 = GETJSAMPLE(elemptr[3]) + GETJSAMPLE(elemptr[9]); - tmp4 = GETJSAMPLE(elemptr[4]) + GETJSAMPLE(elemptr[8]); - tmp5 = GETJSAMPLE(elemptr[5]) + GETJSAMPLE(elemptr[7]); - tmp6 = GETJSAMPLE(elemptr[6]); - - tmp10 = GETJSAMPLE(elemptr[0]) - GETJSAMPLE(elemptr[12]); - tmp11 = GETJSAMPLE(elemptr[1]) - GETJSAMPLE(elemptr[11]); - tmp12 = GETJSAMPLE(elemptr[2]) - GETJSAMPLE(elemptr[10]); - tmp13 = GETJSAMPLE(elemptr[3]) - GETJSAMPLE(elemptr[9]); - tmp14 = GETJSAMPLE(elemptr[4]) - GETJSAMPLE(elemptr[8]); - tmp15 = GETJSAMPLE(elemptr[5]) - GETJSAMPLE(elemptr[7]); - - /* Apply unsigned->signed conversion */ - dataptr[0] = (DCTELEM) - (tmp0 + tmp1 + tmp2 + tmp3 + tmp4 + tmp5 + tmp6 - 13 * CENTERJSAMPLE); - tmp6 += tmp6; - tmp0 -= tmp6; - tmp1 -= tmp6; - tmp2 -= tmp6; - tmp3 -= tmp6; - tmp4 -= tmp6; - tmp5 -= tmp6; - dataptr[2] = (DCTELEM) - DESCALE(MULTIPLY(tmp0, FIX(1.373119086)) + /* c2 */ - MULTIPLY(tmp1, FIX(1.058554052)) + /* c6 */ - MULTIPLY(tmp2, FIX(0.501487041)) - /* c10 */ - MULTIPLY(tmp3, FIX(0.170464608)) - /* c12 */ - MULTIPLY(tmp4, FIX(0.803364869)) - /* c8 */ - MULTIPLY(tmp5, FIX(1.252223920)), /* c4 */ - CONST_BITS); - z1 = MULTIPLY(tmp0 - tmp2, FIX(1.155388986)) - /* (c4+c6)/2 */ - MULTIPLY(tmp3 - tmp4, FIX(0.435816023)) - /* (c2-c10)/2 */ - MULTIPLY(tmp1 - tmp5, FIX(0.316450131)); /* (c8-c12)/2 */ - z2 = MULTIPLY(tmp0 + tmp2, FIX(0.096834934)) - /* (c4-c6)/2 */ - MULTIPLY(tmp3 + tmp4, FIX(0.937303064)) + /* (c2+c10)/2 */ - MULTIPLY(tmp1 + tmp5, FIX(0.486914739)); /* (c8+c12)/2 */ - - dataptr[4] = (DCTELEM) DESCALE(z1 + z2, CONST_BITS); - dataptr[6] = (DCTELEM) DESCALE(z1 - z2, CONST_BITS); - - /* Odd part */ - - tmp1 = MULTIPLY(tmp10 + tmp11, FIX(1.322312651)); /* c3 */ - tmp2 = MULTIPLY(tmp10 + tmp12, FIX(1.163874945)); /* c5 */ - tmp3 = MULTIPLY(tmp10 + tmp13, FIX(0.937797057)) + /* c7 */ - MULTIPLY(tmp14 + tmp15, FIX(0.338443458)); /* c11 */ - tmp0 = tmp1 + tmp2 + tmp3 - - MULTIPLY(tmp10, FIX(2.020082300)) + /* c3+c5+c7-c1 */ - MULTIPLY(tmp14, FIX(0.318774355)); /* c9-c11 */ - tmp4 = MULTIPLY(tmp14 - tmp15, FIX(0.937797057)) - /* c7 */ - MULTIPLY(tmp11 + tmp12, FIX(0.338443458)); /* c11 */ - tmp5 = MULTIPLY(tmp11 + tmp13, - FIX(1.163874945)); /* -c5 */ - tmp1 += tmp4 + tmp5 + - MULTIPLY(tmp11, FIX(0.837223564)) - /* c5+c9+c11-c3 */ - MULTIPLY(tmp14, FIX(2.341699410)); /* c1+c7 */ - tmp6 = MULTIPLY(tmp12 + tmp13, - FIX(0.657217813)); /* -c9 */ - tmp2 += tmp4 + tmp6 - - MULTIPLY(tmp12, FIX(1.572116027)) + /* c1+c5-c9-c11 */ - MULTIPLY(tmp15, FIX(2.260109708)); /* c3+c7 */ - tmp3 += tmp5 + tmp6 + - MULTIPLY(tmp13, FIX(2.205608352)) - /* c3+c5+c9-c7 */ - MULTIPLY(tmp15, FIX(1.742345811)); /* c1+c11 */ - - dataptr[1] = (DCTELEM) DESCALE(tmp0, CONST_BITS); - dataptr[3] = (DCTELEM) DESCALE(tmp1, CONST_BITS); - dataptr[5] = (DCTELEM) DESCALE(tmp2, CONST_BITS); - dataptr[7] = (DCTELEM) DESCALE(tmp3, CONST_BITS); - - ctr++; - - if (ctr != DCTSIZE) { - if (ctr == 13) - break; /* Done. */ - dataptr += DCTSIZE; /* advance pointer to next row */ - } else - dataptr = workspace; /* switch pointer to extended workspace */ - } - - /* Pass 2: process columns. - * We leave the results scaled up by an overall factor of 8. - * We must also scale the output by (8/13)**2 = 64/169, which we partially - * fold into the constant multipliers and final shifting: - * cK now represents sqrt(2) * cos(K*pi/26) * 128/169. - */ - - dataptr = data; - wsptr = workspace; - for (ctr = DCTSIZE-1; ctr >= 0; ctr--) { - /* Even part */ - - tmp0 = dataptr[DCTSIZE*0] + wsptr[DCTSIZE*4]; - tmp1 = dataptr[DCTSIZE*1] + wsptr[DCTSIZE*3]; - tmp2 = dataptr[DCTSIZE*2] + wsptr[DCTSIZE*2]; - tmp3 = dataptr[DCTSIZE*3] + wsptr[DCTSIZE*1]; - tmp4 = dataptr[DCTSIZE*4] + wsptr[DCTSIZE*0]; - tmp5 = dataptr[DCTSIZE*5] + dataptr[DCTSIZE*7]; - tmp6 = dataptr[DCTSIZE*6]; - - tmp10 = dataptr[DCTSIZE*0] - wsptr[DCTSIZE*4]; - tmp11 = dataptr[DCTSIZE*1] - wsptr[DCTSIZE*3]; - tmp12 = dataptr[DCTSIZE*2] - wsptr[DCTSIZE*2]; - tmp13 = dataptr[DCTSIZE*3] - wsptr[DCTSIZE*1]; - tmp14 = dataptr[DCTSIZE*4] - wsptr[DCTSIZE*0]; - tmp15 = dataptr[DCTSIZE*5] - dataptr[DCTSIZE*7]; - - dataptr[DCTSIZE*0] = (DCTELEM) - DESCALE(MULTIPLY(tmp0 + tmp1 + tmp2 + tmp3 + tmp4 + tmp5 + tmp6, - FIX(0.757396450)), /* 128/169 */ - CONST_BITS+1); - tmp6 += tmp6; - tmp0 -= tmp6; - tmp1 -= tmp6; - tmp2 -= tmp6; - tmp3 -= tmp6; - tmp4 -= tmp6; - tmp5 -= tmp6; - dataptr[DCTSIZE*2] = (DCTELEM) - DESCALE(MULTIPLY(tmp0, FIX(1.039995521)) + /* c2 */ - MULTIPLY(tmp1, FIX(0.801745081)) + /* c6 */ - MULTIPLY(tmp2, FIX(0.379824504)) - /* c10 */ - MULTIPLY(tmp3, FIX(0.129109289)) - /* c12 */ - MULTIPLY(tmp4, FIX(0.608465700)) - /* c8 */ - MULTIPLY(tmp5, FIX(0.948429952)), /* c4 */ - CONST_BITS+1); - z1 = MULTIPLY(tmp0 - tmp2, FIX(0.875087516)) - /* (c4+c6)/2 */ - MULTIPLY(tmp3 - tmp4, FIX(0.330085509)) - /* (c2-c10)/2 */ - MULTIPLY(tmp1 - tmp5, FIX(0.239678205)); /* (c8-c12)/2 */ - z2 = MULTIPLY(tmp0 + tmp2, FIX(0.073342435)) - /* (c4-c6)/2 */ - MULTIPLY(tmp3 + tmp4, FIX(0.709910013)) + /* (c2+c10)/2 */ - MULTIPLY(tmp1 + tmp5, FIX(0.368787494)); /* (c8+c12)/2 */ - - dataptr[DCTSIZE*4] = (DCTELEM) DESCALE(z1 + z2, CONST_BITS+1); - dataptr[DCTSIZE*6] = (DCTELEM) DESCALE(z1 - z2, CONST_BITS+1); - - /* Odd part */ - - tmp1 = MULTIPLY(tmp10 + tmp11, FIX(1.001514908)); /* c3 */ - tmp2 = MULTIPLY(tmp10 + tmp12, FIX(0.881514751)); /* c5 */ - tmp3 = MULTIPLY(tmp10 + tmp13, FIX(0.710284161)) + /* c7 */ - MULTIPLY(tmp14 + tmp15, FIX(0.256335874)); /* c11 */ - tmp0 = tmp1 + tmp2 + tmp3 - - MULTIPLY(tmp10, FIX(1.530003162)) + /* c3+c5+c7-c1 */ - MULTIPLY(tmp14, FIX(0.241438564)); /* c9-c11 */ - tmp4 = MULTIPLY(tmp14 - tmp15, FIX(0.710284161)) - /* c7 */ - MULTIPLY(tmp11 + tmp12, FIX(0.256335874)); /* c11 */ - tmp5 = MULTIPLY(tmp11 + tmp13, - FIX(0.881514751)); /* -c5 */ - tmp1 += tmp4 + tmp5 + - MULTIPLY(tmp11, FIX(0.634110155)) - /* c5+c9+c11-c3 */ - MULTIPLY(tmp14, FIX(1.773594819)); /* c1+c7 */ - tmp6 = MULTIPLY(tmp12 + tmp13, - FIX(0.497774438)); /* -c9 */ - tmp2 += tmp4 + tmp6 - - MULTIPLY(tmp12, FIX(1.190715098)) + /* c1+c5-c9-c11 */ - MULTIPLY(tmp15, FIX(1.711799069)); /* c3+c7 */ - tmp3 += tmp5 + tmp6 + - MULTIPLY(tmp13, FIX(1.670519935)) - /* c3+c5+c9-c7 */ - MULTIPLY(tmp15, FIX(1.319646532)); /* c1+c11 */ - - dataptr[DCTSIZE*1] = (DCTELEM) DESCALE(tmp0, CONST_BITS+1); - dataptr[DCTSIZE*3] = (DCTELEM) DESCALE(tmp1, CONST_BITS+1); - dataptr[DCTSIZE*5] = (DCTELEM) DESCALE(tmp2, CONST_BITS+1); - dataptr[DCTSIZE*7] = (DCTELEM) DESCALE(tmp3, CONST_BITS+1); - - dataptr++; /* advance pointer to next column */ - wsptr++; /* advance pointer to next column */ - } -} - - -/* - * Perform the forward DCT on a 14x14 sample block. - */ - -GLOBAL(void) -jpeg_fdct_14x14 (DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col) -{ - INT32 tmp0, tmp1, tmp2, tmp3, tmp4, tmp5, tmp6; - INT32 tmp10, tmp11, tmp12, tmp13, tmp14, tmp15, tmp16; - DCTELEM workspace[8*6]; - DCTELEM *dataptr; - DCTELEM *wsptr; - JSAMPROW elemptr; - int ctr; - SHIFT_TEMPS - - /* Pass 1: process rows. */ - /* Note results are scaled up by sqrt(8) compared to a true DCT. */ - /* cK represents sqrt(2) * cos(K*pi/28). */ - - dataptr = data; - ctr = 0; - for (;;) { - elemptr = sample_data[ctr] + start_col; - - /* Even part */ - - tmp0 = GETJSAMPLE(elemptr[0]) + GETJSAMPLE(elemptr[13]); - tmp1 = GETJSAMPLE(elemptr[1]) + GETJSAMPLE(elemptr[12]); - tmp2 = GETJSAMPLE(elemptr[2]) + GETJSAMPLE(elemptr[11]); - tmp13 = GETJSAMPLE(elemptr[3]) + GETJSAMPLE(elemptr[10]); - tmp4 = GETJSAMPLE(elemptr[4]) + GETJSAMPLE(elemptr[9]); - tmp5 = GETJSAMPLE(elemptr[5]) + GETJSAMPLE(elemptr[8]); - tmp6 = GETJSAMPLE(elemptr[6]) + GETJSAMPLE(elemptr[7]); - - tmp10 = tmp0 + tmp6; - tmp14 = tmp0 - tmp6; - tmp11 = tmp1 + tmp5; - tmp15 = tmp1 - tmp5; - tmp12 = tmp2 + tmp4; - tmp16 = tmp2 - tmp4; - - tmp0 = GETJSAMPLE(elemptr[0]) - GETJSAMPLE(elemptr[13]); - tmp1 = GETJSAMPLE(elemptr[1]) - GETJSAMPLE(elemptr[12]); - tmp2 = GETJSAMPLE(elemptr[2]) - GETJSAMPLE(elemptr[11]); - tmp3 = GETJSAMPLE(elemptr[3]) - GETJSAMPLE(elemptr[10]); - tmp4 = GETJSAMPLE(elemptr[4]) - GETJSAMPLE(elemptr[9]); - tmp5 = GETJSAMPLE(elemptr[5]) - GETJSAMPLE(elemptr[8]); - tmp6 = GETJSAMPLE(elemptr[6]) - GETJSAMPLE(elemptr[7]); - - /* Apply unsigned->signed conversion */ - dataptr[0] = (DCTELEM) - (tmp10 + tmp11 + tmp12 + tmp13 - 14 * CENTERJSAMPLE); - tmp13 += tmp13; - dataptr[4] = (DCTELEM) - DESCALE(MULTIPLY(tmp10 - tmp13, FIX(1.274162392)) + /* c4 */ - MULTIPLY(tmp11 - tmp13, FIX(0.314692123)) - /* c12 */ - MULTIPLY(tmp12 - tmp13, FIX(0.881747734)), /* c8 */ - CONST_BITS); - - tmp10 = MULTIPLY(tmp14 + tmp15, FIX(1.105676686)); /* c6 */ - - dataptr[2] = (DCTELEM) - DESCALE(tmp10 + MULTIPLY(tmp14, FIX(0.273079590)) /* c2-c6 */ - + MULTIPLY(tmp16, FIX(0.613604268)), /* c10 */ - CONST_BITS); - dataptr[6] = (DCTELEM) - DESCALE(tmp10 - MULTIPLY(tmp15, FIX(1.719280954)) /* c6+c10 */ - - MULTIPLY(tmp16, FIX(1.378756276)), /* c2 */ - CONST_BITS); - - /* Odd part */ - - tmp10 = tmp1 + tmp2; - tmp11 = tmp5 - tmp4; - dataptr[7] = (DCTELEM) (tmp0 - tmp10 + tmp3 - tmp11 - tmp6); - tmp3 <<= CONST_BITS; - tmp10 = MULTIPLY(tmp10, - FIX(0.158341681)); /* -c13 */ - tmp11 = MULTIPLY(tmp11, FIX(1.405321284)); /* c1 */ - tmp10 += tmp11 - tmp3; - tmp11 = MULTIPLY(tmp0 + tmp2, FIX(1.197448846)) + /* c5 */ - MULTIPLY(tmp4 + tmp6, FIX(0.752406978)); /* c9 */ - dataptr[5] = (DCTELEM) - DESCALE(tmp10 + tmp11 - MULTIPLY(tmp2, FIX(2.373959773)) /* c3+c5-c13 */ - + MULTIPLY(tmp4, FIX(1.119999435)), /* c1+c11-c9 */ - CONST_BITS); - tmp12 = MULTIPLY(tmp0 + tmp1, FIX(1.334852607)) + /* c3 */ - MULTIPLY(tmp5 - tmp6, FIX(0.467085129)); /* c11 */ - dataptr[3] = (DCTELEM) - DESCALE(tmp10 + tmp12 - MULTIPLY(tmp1, FIX(0.424103948)) /* c3-c9-c13 */ - - MULTIPLY(tmp5, FIX(3.069855259)), /* c1+c5+c11 */ - CONST_BITS); - dataptr[1] = (DCTELEM) - DESCALE(tmp11 + tmp12 + tmp3 + tmp6 - - MULTIPLY(tmp0 + tmp6, FIX(1.126980169)), /* c3+c5-c1 */ - CONST_BITS); - - ctr++; - - if (ctr != DCTSIZE) { - if (ctr == 14) - break; /* Done. */ - dataptr += DCTSIZE; /* advance pointer to next row */ - } else - dataptr = workspace; /* switch pointer to extended workspace */ - } - - /* Pass 2: process columns. - * We leave the results scaled up by an overall factor of 8. - * We must also scale the output by (8/14)**2 = 16/49, which we partially - * fold into the constant multipliers and final shifting: - * cK now represents sqrt(2) * cos(K*pi/28) * 32/49. - */ - - dataptr = data; - wsptr = workspace; - for (ctr = DCTSIZE-1; ctr >= 0; ctr--) { - /* Even part */ - - tmp0 = dataptr[DCTSIZE*0] + wsptr[DCTSIZE*5]; - tmp1 = dataptr[DCTSIZE*1] + wsptr[DCTSIZE*4]; - tmp2 = dataptr[DCTSIZE*2] + wsptr[DCTSIZE*3]; - tmp13 = dataptr[DCTSIZE*3] + wsptr[DCTSIZE*2]; - tmp4 = dataptr[DCTSIZE*4] + wsptr[DCTSIZE*1]; - tmp5 = dataptr[DCTSIZE*5] + wsptr[DCTSIZE*0]; - tmp6 = dataptr[DCTSIZE*6] + dataptr[DCTSIZE*7]; - - tmp10 = tmp0 + tmp6; - tmp14 = tmp0 - tmp6; - tmp11 = tmp1 + tmp5; - tmp15 = tmp1 - tmp5; - tmp12 = tmp2 + tmp4; - tmp16 = tmp2 - tmp4; - - tmp0 = dataptr[DCTSIZE*0] - wsptr[DCTSIZE*5]; - tmp1 = dataptr[DCTSIZE*1] - wsptr[DCTSIZE*4]; - tmp2 = dataptr[DCTSIZE*2] - wsptr[DCTSIZE*3]; - tmp3 = dataptr[DCTSIZE*3] - wsptr[DCTSIZE*2]; - tmp4 = dataptr[DCTSIZE*4] - wsptr[DCTSIZE*1]; - tmp5 = dataptr[DCTSIZE*5] - wsptr[DCTSIZE*0]; - tmp6 = dataptr[DCTSIZE*6] - dataptr[DCTSIZE*7]; - - dataptr[DCTSIZE*0] = (DCTELEM) - DESCALE(MULTIPLY(tmp10 + tmp11 + tmp12 + tmp13, - FIX(0.653061224)), /* 32/49 */ - CONST_BITS+1); - tmp13 += tmp13; - dataptr[DCTSIZE*4] = (DCTELEM) - DESCALE(MULTIPLY(tmp10 - tmp13, FIX(0.832106052)) + /* c4 */ - MULTIPLY(tmp11 - tmp13, FIX(0.205513223)) - /* c12 */ - MULTIPLY(tmp12 - tmp13, FIX(0.575835255)), /* c8 */ - CONST_BITS+1); - - tmp10 = MULTIPLY(tmp14 + tmp15, FIX(0.722074570)); /* c6 */ - - dataptr[DCTSIZE*2] = (DCTELEM) - DESCALE(tmp10 + MULTIPLY(tmp14, FIX(0.178337691)) /* c2-c6 */ - + MULTIPLY(tmp16, FIX(0.400721155)), /* c10 */ - CONST_BITS+1); - dataptr[DCTSIZE*6] = (DCTELEM) - DESCALE(tmp10 - MULTIPLY(tmp15, FIX(1.122795725)) /* c6+c10 */ - - MULTIPLY(tmp16, FIX(0.900412262)), /* c2 */ - CONST_BITS+1); - - /* Odd part */ - - tmp10 = tmp1 + tmp2; - tmp11 = tmp5 - tmp4; - dataptr[DCTSIZE*7] = (DCTELEM) - DESCALE(MULTIPLY(tmp0 - tmp10 + tmp3 - tmp11 - tmp6, - FIX(0.653061224)), /* 32/49 */ - CONST_BITS+1); - tmp3 = MULTIPLY(tmp3 , FIX(0.653061224)); /* 32/49 */ - tmp10 = MULTIPLY(tmp10, - FIX(0.103406812)); /* -c13 */ - tmp11 = MULTIPLY(tmp11, FIX(0.917760839)); /* c1 */ - tmp10 += tmp11 - tmp3; - tmp11 = MULTIPLY(tmp0 + tmp2, FIX(0.782007410)) + /* c5 */ - MULTIPLY(tmp4 + tmp6, FIX(0.491367823)); /* c9 */ - dataptr[DCTSIZE*5] = (DCTELEM) - DESCALE(tmp10 + tmp11 - MULTIPLY(tmp2, FIX(1.550341076)) /* c3+c5-c13 */ - + MULTIPLY(tmp4, FIX(0.731428202)), /* c1+c11-c9 */ - CONST_BITS+1); - tmp12 = MULTIPLY(tmp0 + tmp1, FIX(0.871740478)) + /* c3 */ - MULTIPLY(tmp5 - tmp6, FIX(0.305035186)); /* c11 */ - dataptr[DCTSIZE*3] = (DCTELEM) - DESCALE(tmp10 + tmp12 - MULTIPLY(tmp1, FIX(0.276965844)) /* c3-c9-c13 */ - - MULTIPLY(tmp5, FIX(2.004803435)), /* c1+c5+c11 */ - CONST_BITS+1); - dataptr[DCTSIZE*1] = (DCTELEM) - DESCALE(tmp11 + tmp12 + tmp3 - - MULTIPLY(tmp0, FIX(0.735987049)) /* c3+c5-c1 */ - - MULTIPLY(tmp6, FIX(0.082925825)), /* c9-c11-c13 */ - CONST_BITS+1); - - dataptr++; /* advance pointer to next column */ - wsptr++; /* advance pointer to next column */ - } -} - - -/* - * Perform the forward DCT on a 15x15 sample block. - */ - -GLOBAL(void) -jpeg_fdct_15x15 (DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col) -{ - INT32 tmp0, tmp1, tmp2, tmp3, tmp4, tmp5, tmp6, tmp7; - INT32 tmp10, tmp11, tmp12, tmp13, tmp14, tmp15, tmp16; - INT32 z1, z2, z3; - DCTELEM workspace[8*7]; - DCTELEM *dataptr; - DCTELEM *wsptr; - JSAMPROW elemptr; - int ctr; - SHIFT_TEMPS - - /* Pass 1: process rows. */ - /* Note results are scaled up by sqrt(8) compared to a true DCT. */ - /* cK represents sqrt(2) * cos(K*pi/30). */ - - dataptr = data; - ctr = 0; - for (;;) { - elemptr = sample_data[ctr] + start_col; - - /* Even part */ - - tmp0 = GETJSAMPLE(elemptr[0]) + GETJSAMPLE(elemptr[14]); - tmp1 = GETJSAMPLE(elemptr[1]) + GETJSAMPLE(elemptr[13]); - tmp2 = GETJSAMPLE(elemptr[2]) + GETJSAMPLE(elemptr[12]); - tmp3 = GETJSAMPLE(elemptr[3]) + GETJSAMPLE(elemptr[11]); - tmp4 = GETJSAMPLE(elemptr[4]) + GETJSAMPLE(elemptr[10]); - tmp5 = GETJSAMPLE(elemptr[5]) + GETJSAMPLE(elemptr[9]); - tmp6 = GETJSAMPLE(elemptr[6]) + GETJSAMPLE(elemptr[8]); - tmp7 = GETJSAMPLE(elemptr[7]); - - tmp10 = GETJSAMPLE(elemptr[0]) - GETJSAMPLE(elemptr[14]); - tmp11 = GETJSAMPLE(elemptr[1]) - GETJSAMPLE(elemptr[13]); - tmp12 = GETJSAMPLE(elemptr[2]) - GETJSAMPLE(elemptr[12]); - tmp13 = GETJSAMPLE(elemptr[3]) - GETJSAMPLE(elemptr[11]); - tmp14 = GETJSAMPLE(elemptr[4]) - GETJSAMPLE(elemptr[10]); - tmp15 = GETJSAMPLE(elemptr[5]) - GETJSAMPLE(elemptr[9]); - tmp16 = GETJSAMPLE(elemptr[6]) - GETJSAMPLE(elemptr[8]); - - z1 = tmp0 + tmp4 + tmp5; - z2 = tmp1 + tmp3 + tmp6; - z3 = tmp2 + tmp7; - /* Apply unsigned->signed conversion */ - dataptr[0] = (DCTELEM) (z1 + z2 + z3 - 15 * CENTERJSAMPLE); - z3 += z3; - dataptr[6] = (DCTELEM) - DESCALE(MULTIPLY(z1 - z3, FIX(1.144122806)) - /* c6 */ - MULTIPLY(z2 - z3, FIX(0.437016024)), /* c12 */ - CONST_BITS); - tmp2 += ((tmp1 + tmp4) >> 1) - tmp7 - tmp7; - z1 = MULTIPLY(tmp3 - tmp2, FIX(1.531135173)) - /* c2+c14 */ - MULTIPLY(tmp6 - tmp2, FIX(2.238241955)); /* c4+c8 */ - z2 = MULTIPLY(tmp5 - tmp2, FIX(0.798468008)) - /* c8-c14 */ - MULTIPLY(tmp0 - tmp2, FIX(0.091361227)); /* c2-c4 */ - z3 = MULTIPLY(tmp0 - tmp3, FIX(1.383309603)) + /* c2 */ - MULTIPLY(tmp6 - tmp5, FIX(0.946293579)) + /* c8 */ - MULTIPLY(tmp1 - tmp4, FIX(0.790569415)); /* (c6+c12)/2 */ - - dataptr[2] = (DCTELEM) DESCALE(z1 + z3, CONST_BITS); - dataptr[4] = (DCTELEM) DESCALE(z2 + z3, CONST_BITS); - - /* Odd part */ - - tmp2 = MULTIPLY(tmp10 - tmp12 - tmp13 + tmp15 + tmp16, - FIX(1.224744871)); /* c5 */ - tmp1 = MULTIPLY(tmp10 - tmp14 - tmp15, FIX(1.344997024)) + /* c3 */ - MULTIPLY(tmp11 - tmp13 - tmp16, FIX(0.831253876)); /* c9 */ - tmp12 = MULTIPLY(tmp12, FIX(1.224744871)); /* c5 */ - tmp4 = MULTIPLY(tmp10 - tmp16, FIX(1.406466353)) + /* c1 */ - MULTIPLY(tmp11 + tmp14, FIX(1.344997024)) + /* c3 */ - MULTIPLY(tmp13 + tmp15, FIX(0.575212477)); /* c11 */ - tmp0 = MULTIPLY(tmp13, FIX(0.475753014)) - /* c7-c11 */ - MULTIPLY(tmp14, FIX(0.513743148)) + /* c3-c9 */ - MULTIPLY(tmp16, FIX(1.700497885)) + tmp4 + tmp12; /* c1+c13 */ - tmp3 = MULTIPLY(tmp10, - FIX(0.355500862)) - /* -(c1-c7) */ - MULTIPLY(tmp11, FIX(2.176250899)) - /* c3+c9 */ - MULTIPLY(tmp15, FIX(0.869244010)) + tmp4 - tmp12; /* c11+c13 */ - - dataptr[1] = (DCTELEM) DESCALE(tmp0, CONST_BITS); - dataptr[3] = (DCTELEM) DESCALE(tmp1, CONST_BITS); - dataptr[5] = (DCTELEM) DESCALE(tmp2, CONST_BITS); - dataptr[7] = (DCTELEM) DESCALE(tmp3, CONST_BITS); - - ctr++; - - if (ctr != DCTSIZE) { - if (ctr == 15) - break; /* Done. */ - dataptr += DCTSIZE; /* advance pointer to next row */ - } else - dataptr = workspace; /* switch pointer to extended workspace */ - } - - /* Pass 2: process columns. - * We leave the results scaled up by an overall factor of 8. - * We must also scale the output by (8/15)**2 = 64/225, which we partially - * fold into the constant multipliers and final shifting: - * cK now represents sqrt(2) * cos(K*pi/30) * 256/225. - */ - - dataptr = data; - wsptr = workspace; - for (ctr = DCTSIZE-1; ctr >= 0; ctr--) { - /* Even part */ - - tmp0 = dataptr[DCTSIZE*0] + wsptr[DCTSIZE*6]; - tmp1 = dataptr[DCTSIZE*1] + wsptr[DCTSIZE*5]; - tmp2 = dataptr[DCTSIZE*2] + wsptr[DCTSIZE*4]; - tmp3 = dataptr[DCTSIZE*3] + wsptr[DCTSIZE*3]; - tmp4 = dataptr[DCTSIZE*4] + wsptr[DCTSIZE*2]; - tmp5 = dataptr[DCTSIZE*5] + wsptr[DCTSIZE*1]; - tmp6 = dataptr[DCTSIZE*6] + wsptr[DCTSIZE*0]; - tmp7 = dataptr[DCTSIZE*7]; - - tmp10 = dataptr[DCTSIZE*0] - wsptr[DCTSIZE*6]; - tmp11 = dataptr[DCTSIZE*1] - wsptr[DCTSIZE*5]; - tmp12 = dataptr[DCTSIZE*2] - wsptr[DCTSIZE*4]; - tmp13 = dataptr[DCTSIZE*3] - wsptr[DCTSIZE*3]; - tmp14 = dataptr[DCTSIZE*4] - wsptr[DCTSIZE*2]; - tmp15 = dataptr[DCTSIZE*5] - wsptr[DCTSIZE*1]; - tmp16 = dataptr[DCTSIZE*6] - wsptr[DCTSIZE*0]; - - z1 = tmp0 + tmp4 + tmp5; - z2 = tmp1 + tmp3 + tmp6; - z3 = tmp2 + tmp7; - dataptr[DCTSIZE*0] = (DCTELEM) - DESCALE(MULTIPLY(z1 + z2 + z3, FIX(1.137777778)), /* 256/225 */ - CONST_BITS+2); - z3 += z3; - dataptr[DCTSIZE*6] = (DCTELEM) - DESCALE(MULTIPLY(z1 - z3, FIX(1.301757503)) - /* c6 */ - MULTIPLY(z2 - z3, FIX(0.497227121)), /* c12 */ - CONST_BITS+2); - tmp2 += ((tmp1 + tmp4) >> 1) - tmp7 - tmp7; - z1 = MULTIPLY(tmp3 - tmp2, FIX(1.742091575)) - /* c2+c14 */ - MULTIPLY(tmp6 - tmp2, FIX(2.546621957)); /* c4+c8 */ - z2 = MULTIPLY(tmp5 - tmp2, FIX(0.908479156)) - /* c8-c14 */ - MULTIPLY(tmp0 - tmp2, FIX(0.103948774)); /* c2-c4 */ - z3 = MULTIPLY(tmp0 - tmp3, FIX(1.573898926)) + /* c2 */ - MULTIPLY(tmp6 - tmp5, FIX(1.076671805)) + /* c8 */ - MULTIPLY(tmp1 - tmp4, FIX(0.899492312)); /* (c6+c12)/2 */ - - dataptr[DCTSIZE*2] = (DCTELEM) DESCALE(z1 + z3, CONST_BITS+2); - dataptr[DCTSIZE*4] = (DCTELEM) DESCALE(z2 + z3, CONST_BITS+2); - - /* Odd part */ - - tmp2 = MULTIPLY(tmp10 - tmp12 - tmp13 + tmp15 + tmp16, - FIX(1.393487498)); /* c5 */ - tmp1 = MULTIPLY(tmp10 - tmp14 - tmp15, FIX(1.530307725)) + /* c3 */ - MULTIPLY(tmp11 - tmp13 - tmp16, FIX(0.945782187)); /* c9 */ - tmp12 = MULTIPLY(tmp12, FIX(1.393487498)); /* c5 */ - tmp4 = MULTIPLY(tmp10 - tmp16, FIX(1.600246161)) + /* c1 */ - MULTIPLY(tmp11 + tmp14, FIX(1.530307725)) + /* c3 */ - MULTIPLY(tmp13 + tmp15, FIX(0.654463974)); /* c11 */ - tmp0 = MULTIPLY(tmp13, FIX(0.541301207)) - /* c7-c11 */ - MULTIPLY(tmp14, FIX(0.584525538)) + /* c3-c9 */ - MULTIPLY(tmp16, FIX(1.934788705)) + tmp4 + tmp12; /* c1+c13 */ - tmp3 = MULTIPLY(tmp10, - FIX(0.404480980)) - /* -(c1-c7) */ - MULTIPLY(tmp11, FIX(2.476089912)) - /* c3+c9 */ - MULTIPLY(tmp15, FIX(0.989006518)) + tmp4 - tmp12; /* c11+c13 */ - - dataptr[DCTSIZE*1] = (DCTELEM) DESCALE(tmp0, CONST_BITS+2); - dataptr[DCTSIZE*3] = (DCTELEM) DESCALE(tmp1, CONST_BITS+2); - dataptr[DCTSIZE*5] = (DCTELEM) DESCALE(tmp2, CONST_BITS+2); - dataptr[DCTSIZE*7] = (DCTELEM) DESCALE(tmp3, CONST_BITS+2); - - dataptr++; /* advance pointer to next column */ - wsptr++; /* advance pointer to next column */ - } -} - - -/* - * Perform the forward DCT on a 16x16 sample block. - */ - -GLOBAL(void) -jpeg_fdct_16x16 (DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col) -{ - INT32 tmp0, tmp1, tmp2, tmp3, tmp4, tmp5, tmp6, tmp7; - INT32 tmp10, tmp11, tmp12, tmp13, tmp14, tmp15, tmp16, tmp17; - DCTELEM workspace[DCTSIZE2]; - DCTELEM *dataptr; - DCTELEM *wsptr; - JSAMPROW elemptr; - int ctr; - SHIFT_TEMPS - - /* Pass 1: process rows. */ - /* Note results are scaled up by sqrt(8) compared to a true DCT; */ - /* furthermore, we scale the results by 2**PASS1_BITS. */ - /* cK represents sqrt(2) * cos(K*pi/32). */ - - dataptr = data; - ctr = 0; - for (;;) { - elemptr = sample_data[ctr] + start_col; - - /* Even part */ - - tmp0 = GETJSAMPLE(elemptr[0]) + GETJSAMPLE(elemptr[15]); - tmp1 = GETJSAMPLE(elemptr[1]) + GETJSAMPLE(elemptr[14]); - tmp2 = GETJSAMPLE(elemptr[2]) + GETJSAMPLE(elemptr[13]); - tmp3 = GETJSAMPLE(elemptr[3]) + GETJSAMPLE(elemptr[12]); - tmp4 = GETJSAMPLE(elemptr[4]) + GETJSAMPLE(elemptr[11]); - tmp5 = GETJSAMPLE(elemptr[5]) + GETJSAMPLE(elemptr[10]); - tmp6 = GETJSAMPLE(elemptr[6]) + GETJSAMPLE(elemptr[9]); - tmp7 = GETJSAMPLE(elemptr[7]) + GETJSAMPLE(elemptr[8]); - - tmp10 = tmp0 + tmp7; - tmp14 = tmp0 - tmp7; - tmp11 = tmp1 + tmp6; - tmp15 = tmp1 - tmp6; - tmp12 = tmp2 + tmp5; - tmp16 = tmp2 - tmp5; - tmp13 = tmp3 + tmp4; - tmp17 = tmp3 - tmp4; - - tmp0 = GETJSAMPLE(elemptr[0]) - GETJSAMPLE(elemptr[15]); - tmp1 = GETJSAMPLE(elemptr[1]) - GETJSAMPLE(elemptr[14]); - tmp2 = GETJSAMPLE(elemptr[2]) - GETJSAMPLE(elemptr[13]); - tmp3 = GETJSAMPLE(elemptr[3]) - GETJSAMPLE(elemptr[12]); - tmp4 = GETJSAMPLE(elemptr[4]) - GETJSAMPLE(elemptr[11]); - tmp5 = GETJSAMPLE(elemptr[5]) - GETJSAMPLE(elemptr[10]); - tmp6 = GETJSAMPLE(elemptr[6]) - GETJSAMPLE(elemptr[9]); - tmp7 = GETJSAMPLE(elemptr[7]) - GETJSAMPLE(elemptr[8]); - - /* Apply unsigned->signed conversion */ - dataptr[0] = (DCTELEM) - ((tmp10 + tmp11 + tmp12 + tmp13 - 16 * CENTERJSAMPLE) << PASS1_BITS); - dataptr[4] = (DCTELEM) - DESCALE(MULTIPLY(tmp10 - tmp13, FIX(1.306562965)) + /* c4[16] = c2[8] */ - MULTIPLY(tmp11 - tmp12, FIX_0_541196100), /* c12[16] = c6[8] */ - CONST_BITS-PASS1_BITS); - - tmp10 = MULTIPLY(tmp17 - tmp15, FIX(0.275899379)) + /* c14[16] = c7[8] */ - MULTIPLY(tmp14 - tmp16, FIX(1.387039845)); /* c2[16] = c1[8] */ - - dataptr[2] = (DCTELEM) - DESCALE(tmp10 + MULTIPLY(tmp15, FIX(1.451774982)) /* c6+c14 */ - + MULTIPLY(tmp16, FIX(2.172734804)), /* c2+c10 */ - CONST_BITS-PASS1_BITS); - dataptr[6] = (DCTELEM) - DESCALE(tmp10 - MULTIPLY(tmp14, FIX(0.211164243)) /* c2-c6 */ - - MULTIPLY(tmp17, FIX(1.061594338)), /* c10+c14 */ - CONST_BITS-PASS1_BITS); - - /* Odd part */ - - tmp11 = MULTIPLY(tmp0 + tmp1, FIX(1.353318001)) + /* c3 */ - MULTIPLY(tmp6 - tmp7, FIX(0.410524528)); /* c13 */ - tmp12 = MULTIPLY(tmp0 + tmp2, FIX(1.247225013)) + /* c5 */ - MULTIPLY(tmp5 + tmp7, FIX(0.666655658)); /* c11 */ - tmp13 = MULTIPLY(tmp0 + tmp3, FIX(1.093201867)) + /* c7 */ - MULTIPLY(tmp4 - tmp7, FIX(0.897167586)); /* c9 */ - tmp14 = MULTIPLY(tmp1 + tmp2, FIX(0.138617169)) + /* c15 */ - MULTIPLY(tmp6 - tmp5, FIX(1.407403738)); /* c1 */ - tmp15 = MULTIPLY(tmp1 + tmp3, - FIX(0.666655658)) + /* -c11 */ - MULTIPLY(tmp4 + tmp6, - FIX(1.247225013)); /* -c5 */ - tmp16 = MULTIPLY(tmp2 + tmp3, - FIX(1.353318001)) + /* -c3 */ - MULTIPLY(tmp5 - tmp4, FIX(0.410524528)); /* c13 */ - tmp10 = tmp11 + tmp12 + tmp13 - - MULTIPLY(tmp0, FIX(2.286341144)) + /* c7+c5+c3-c1 */ - MULTIPLY(tmp7, FIX(0.779653625)); /* c15+c13-c11+c9 */ - tmp11 += tmp14 + tmp15 + MULTIPLY(tmp1, FIX(0.071888074)) /* c9-c3-c15+c11 */ - - MULTIPLY(tmp6, FIX(1.663905119)); /* c7+c13+c1-c5 */ - tmp12 += tmp14 + tmp16 - MULTIPLY(tmp2, FIX(1.125726048)) /* c7+c5+c15-c3 */ - + MULTIPLY(tmp5, FIX(1.227391138)); /* c9-c11+c1-c13 */ - tmp13 += tmp15 + tmp16 + MULTIPLY(tmp3, FIX(1.065388962)) /* c15+c3+c11-c7 */ - + MULTIPLY(tmp4, FIX(2.167985692)); /* c1+c13+c5-c9 */ - - dataptr[1] = (DCTELEM) DESCALE(tmp10, CONST_BITS-PASS1_BITS); - dataptr[3] = (DCTELEM) DESCALE(tmp11, CONST_BITS-PASS1_BITS); - dataptr[5] = (DCTELEM) DESCALE(tmp12, CONST_BITS-PASS1_BITS); - dataptr[7] = (DCTELEM) DESCALE(tmp13, CONST_BITS-PASS1_BITS); - - ctr++; - - if (ctr != DCTSIZE) { - if (ctr == DCTSIZE * 2) - break; /* Done. */ - dataptr += DCTSIZE; /* advance pointer to next row */ - } else - dataptr = workspace; /* switch pointer to extended workspace */ - } - - /* Pass 2: process columns. - * We remove the PASS1_BITS scaling, but leave the results scaled up - * by an overall factor of 8. - * We must also scale the output by (8/16)**2 = 1/2**2. - */ - - dataptr = data; - wsptr = workspace; - for (ctr = DCTSIZE-1; ctr >= 0; ctr--) { - /* Even part */ - - tmp0 = dataptr[DCTSIZE*0] + wsptr[DCTSIZE*7]; - tmp1 = dataptr[DCTSIZE*1] + wsptr[DCTSIZE*6]; - tmp2 = dataptr[DCTSIZE*2] + wsptr[DCTSIZE*5]; - tmp3 = dataptr[DCTSIZE*3] + wsptr[DCTSIZE*4]; - tmp4 = dataptr[DCTSIZE*4] + wsptr[DCTSIZE*3]; - tmp5 = dataptr[DCTSIZE*5] + wsptr[DCTSIZE*2]; - tmp6 = dataptr[DCTSIZE*6] + wsptr[DCTSIZE*1]; - tmp7 = dataptr[DCTSIZE*7] + wsptr[DCTSIZE*0]; - - tmp10 = tmp0 + tmp7; - tmp14 = tmp0 - tmp7; - tmp11 = tmp1 + tmp6; - tmp15 = tmp1 - tmp6; - tmp12 = tmp2 + tmp5; - tmp16 = tmp2 - tmp5; - tmp13 = tmp3 + tmp4; - tmp17 = tmp3 - tmp4; - - tmp0 = dataptr[DCTSIZE*0] - wsptr[DCTSIZE*7]; - tmp1 = dataptr[DCTSIZE*1] - wsptr[DCTSIZE*6]; - tmp2 = dataptr[DCTSIZE*2] - wsptr[DCTSIZE*5]; - tmp3 = dataptr[DCTSIZE*3] - wsptr[DCTSIZE*4]; - tmp4 = dataptr[DCTSIZE*4] - wsptr[DCTSIZE*3]; - tmp5 = dataptr[DCTSIZE*5] - wsptr[DCTSIZE*2]; - tmp6 = dataptr[DCTSIZE*6] - wsptr[DCTSIZE*1]; - tmp7 = dataptr[DCTSIZE*7] - wsptr[DCTSIZE*0]; - - dataptr[DCTSIZE*0] = (DCTELEM) - DESCALE(tmp10 + tmp11 + tmp12 + tmp13, PASS1_BITS+2); - dataptr[DCTSIZE*4] = (DCTELEM) - DESCALE(MULTIPLY(tmp10 - tmp13, FIX(1.306562965)) + /* c4[16] = c2[8] */ - MULTIPLY(tmp11 - tmp12, FIX_0_541196100), /* c12[16] = c6[8] */ - CONST_BITS+PASS1_BITS+2); - - tmp10 = MULTIPLY(tmp17 - tmp15, FIX(0.275899379)) + /* c14[16] = c7[8] */ - MULTIPLY(tmp14 - tmp16, FIX(1.387039845)); /* c2[16] = c1[8] */ - - dataptr[DCTSIZE*2] = (DCTELEM) - DESCALE(tmp10 + MULTIPLY(tmp15, FIX(1.451774982)) /* c6+c14 */ - + MULTIPLY(tmp16, FIX(2.172734804)), /* c2+10 */ - CONST_BITS+PASS1_BITS+2); - dataptr[DCTSIZE*6] = (DCTELEM) - DESCALE(tmp10 - MULTIPLY(tmp14, FIX(0.211164243)) /* c2-c6 */ - - MULTIPLY(tmp17, FIX(1.061594338)), /* c10+c14 */ - CONST_BITS+PASS1_BITS+2); - - /* Odd part */ - - tmp11 = MULTIPLY(tmp0 + tmp1, FIX(1.353318001)) + /* c3 */ - MULTIPLY(tmp6 - tmp7, FIX(0.410524528)); /* c13 */ - tmp12 = MULTIPLY(tmp0 + tmp2, FIX(1.247225013)) + /* c5 */ - MULTIPLY(tmp5 + tmp7, FIX(0.666655658)); /* c11 */ - tmp13 = MULTIPLY(tmp0 + tmp3, FIX(1.093201867)) + /* c7 */ - MULTIPLY(tmp4 - tmp7, FIX(0.897167586)); /* c9 */ - tmp14 = MULTIPLY(tmp1 + tmp2, FIX(0.138617169)) + /* c15 */ - MULTIPLY(tmp6 - tmp5, FIX(1.407403738)); /* c1 */ - tmp15 = MULTIPLY(tmp1 + tmp3, - FIX(0.666655658)) + /* -c11 */ - MULTIPLY(tmp4 + tmp6, - FIX(1.247225013)); /* -c5 */ - tmp16 = MULTIPLY(tmp2 + tmp3, - FIX(1.353318001)) + /* -c3 */ - MULTIPLY(tmp5 - tmp4, FIX(0.410524528)); /* c13 */ - tmp10 = tmp11 + tmp12 + tmp13 - - MULTIPLY(tmp0, FIX(2.286341144)) + /* c7+c5+c3-c1 */ - MULTIPLY(tmp7, FIX(0.779653625)); /* c15+c13-c11+c9 */ - tmp11 += tmp14 + tmp15 + MULTIPLY(tmp1, FIX(0.071888074)) /* c9-c3-c15+c11 */ - - MULTIPLY(tmp6, FIX(1.663905119)); /* c7+c13+c1-c5 */ - tmp12 += tmp14 + tmp16 - MULTIPLY(tmp2, FIX(1.125726048)) /* c7+c5+c15-c3 */ - + MULTIPLY(tmp5, FIX(1.227391138)); /* c9-c11+c1-c13 */ - tmp13 += tmp15 + tmp16 + MULTIPLY(tmp3, FIX(1.065388962)) /* c15+c3+c11-c7 */ - + MULTIPLY(tmp4, FIX(2.167985692)); /* c1+c13+c5-c9 */ - - dataptr[DCTSIZE*1] = (DCTELEM) DESCALE(tmp10, CONST_BITS+PASS1_BITS+2); - dataptr[DCTSIZE*3] = (DCTELEM) DESCALE(tmp11, CONST_BITS+PASS1_BITS+2); - dataptr[DCTSIZE*5] = (DCTELEM) DESCALE(tmp12, CONST_BITS+PASS1_BITS+2); - dataptr[DCTSIZE*7] = (DCTELEM) DESCALE(tmp13, CONST_BITS+PASS1_BITS+2); - - dataptr++; /* advance pointer to next column */ - wsptr++; /* advance pointer to next column */ - } -} - - -/* - * Perform the forward DCT on a 16x8 sample block. - * - * 16-point FDCT in pass 1 (rows), 8-point in pass 2 (columns). - */ - -GLOBAL(void) -jpeg_fdct_16x8 (DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col) -{ - INT32 tmp0, tmp1, tmp2, tmp3, tmp4, tmp5, tmp6, tmp7; - INT32 tmp10, tmp11, tmp12, tmp13, tmp14, tmp15, tmp16, tmp17; - INT32 z1; - DCTELEM *dataptr; - JSAMPROW elemptr; - int ctr; - SHIFT_TEMPS - - /* Pass 1: process rows. */ - /* Note results are scaled up by sqrt(8) compared to a true DCT; */ - /* furthermore, we scale the results by 2**PASS1_BITS. */ - /* 16-point FDCT kernel, cK represents sqrt(2) * cos(K*pi/32). */ - - dataptr = data; - ctr = 0; - for (ctr = 0; ctr < DCTSIZE; ctr++) { - elemptr = sample_data[ctr] + start_col; - - /* Even part */ - - tmp0 = GETJSAMPLE(elemptr[0]) + GETJSAMPLE(elemptr[15]); - tmp1 = GETJSAMPLE(elemptr[1]) + GETJSAMPLE(elemptr[14]); - tmp2 = GETJSAMPLE(elemptr[2]) + GETJSAMPLE(elemptr[13]); - tmp3 = GETJSAMPLE(elemptr[3]) + GETJSAMPLE(elemptr[12]); - tmp4 = GETJSAMPLE(elemptr[4]) + GETJSAMPLE(elemptr[11]); - tmp5 = GETJSAMPLE(elemptr[5]) + GETJSAMPLE(elemptr[10]); - tmp6 = GETJSAMPLE(elemptr[6]) + GETJSAMPLE(elemptr[9]); - tmp7 = GETJSAMPLE(elemptr[7]) + GETJSAMPLE(elemptr[8]); - - tmp10 = tmp0 + tmp7; - tmp14 = tmp0 - tmp7; - tmp11 = tmp1 + tmp6; - tmp15 = tmp1 - tmp6; - tmp12 = tmp2 + tmp5; - tmp16 = tmp2 - tmp5; - tmp13 = tmp3 + tmp4; - tmp17 = tmp3 - tmp4; - - tmp0 = GETJSAMPLE(elemptr[0]) - GETJSAMPLE(elemptr[15]); - tmp1 = GETJSAMPLE(elemptr[1]) - GETJSAMPLE(elemptr[14]); - tmp2 = GETJSAMPLE(elemptr[2]) - GETJSAMPLE(elemptr[13]); - tmp3 = GETJSAMPLE(elemptr[3]) - GETJSAMPLE(elemptr[12]); - tmp4 = GETJSAMPLE(elemptr[4]) - GETJSAMPLE(elemptr[11]); - tmp5 = GETJSAMPLE(elemptr[5]) - GETJSAMPLE(elemptr[10]); - tmp6 = GETJSAMPLE(elemptr[6]) - GETJSAMPLE(elemptr[9]); - tmp7 = GETJSAMPLE(elemptr[7]) - GETJSAMPLE(elemptr[8]); - - /* Apply unsigned->signed conversion */ - dataptr[0] = (DCTELEM) - ((tmp10 + tmp11 + tmp12 + tmp13 - 16 * CENTERJSAMPLE) << PASS1_BITS); - dataptr[4] = (DCTELEM) - DESCALE(MULTIPLY(tmp10 - tmp13, FIX(1.306562965)) + /* c4[16] = c2[8] */ - MULTIPLY(tmp11 - tmp12, FIX_0_541196100), /* c12[16] = c6[8] */ - CONST_BITS-PASS1_BITS); - - tmp10 = MULTIPLY(tmp17 - tmp15, FIX(0.275899379)) + /* c14[16] = c7[8] */ - MULTIPLY(tmp14 - tmp16, FIX(1.387039845)); /* c2[16] = c1[8] */ - - dataptr[2] = (DCTELEM) - DESCALE(tmp10 + MULTIPLY(tmp15, FIX(1.451774982)) /* c6+c14 */ - + MULTIPLY(tmp16, FIX(2.172734804)), /* c2+c10 */ - CONST_BITS-PASS1_BITS); - dataptr[6] = (DCTELEM) - DESCALE(tmp10 - MULTIPLY(tmp14, FIX(0.211164243)) /* c2-c6 */ - - MULTIPLY(tmp17, FIX(1.061594338)), /* c10+c14 */ - CONST_BITS-PASS1_BITS); - - /* Odd part */ - - tmp11 = MULTIPLY(tmp0 + tmp1, FIX(1.353318001)) + /* c3 */ - MULTIPLY(tmp6 - tmp7, FIX(0.410524528)); /* c13 */ - tmp12 = MULTIPLY(tmp0 + tmp2, FIX(1.247225013)) + /* c5 */ - MULTIPLY(tmp5 + tmp7, FIX(0.666655658)); /* c11 */ - tmp13 = MULTIPLY(tmp0 + tmp3, FIX(1.093201867)) + /* c7 */ - MULTIPLY(tmp4 - tmp7, FIX(0.897167586)); /* c9 */ - tmp14 = MULTIPLY(tmp1 + tmp2, FIX(0.138617169)) + /* c15 */ - MULTIPLY(tmp6 - tmp5, FIX(1.407403738)); /* c1 */ - tmp15 = MULTIPLY(tmp1 + tmp3, - FIX(0.666655658)) + /* -c11 */ - MULTIPLY(tmp4 + tmp6, - FIX(1.247225013)); /* -c5 */ - tmp16 = MULTIPLY(tmp2 + tmp3, - FIX(1.353318001)) + /* -c3 */ - MULTIPLY(tmp5 - tmp4, FIX(0.410524528)); /* c13 */ - tmp10 = tmp11 + tmp12 + tmp13 - - MULTIPLY(tmp0, FIX(2.286341144)) + /* c7+c5+c3-c1 */ - MULTIPLY(tmp7, FIX(0.779653625)); /* c15+c13-c11+c9 */ - tmp11 += tmp14 + tmp15 + MULTIPLY(tmp1, FIX(0.071888074)) /* c9-c3-c15+c11 */ - - MULTIPLY(tmp6, FIX(1.663905119)); /* c7+c13+c1-c5 */ - tmp12 += tmp14 + tmp16 - MULTIPLY(tmp2, FIX(1.125726048)) /* c7+c5+c15-c3 */ - + MULTIPLY(tmp5, FIX(1.227391138)); /* c9-c11+c1-c13 */ - tmp13 += tmp15 + tmp16 + MULTIPLY(tmp3, FIX(1.065388962)) /* c15+c3+c11-c7 */ - + MULTIPLY(tmp4, FIX(2.167985692)); /* c1+c13+c5-c9 */ - - dataptr[1] = (DCTELEM) DESCALE(tmp10, CONST_BITS-PASS1_BITS); - dataptr[3] = (DCTELEM) DESCALE(tmp11, CONST_BITS-PASS1_BITS); - dataptr[5] = (DCTELEM) DESCALE(tmp12, CONST_BITS-PASS1_BITS); - dataptr[7] = (DCTELEM) DESCALE(tmp13, CONST_BITS-PASS1_BITS); - - dataptr += DCTSIZE; /* advance pointer to next row */ - } - - /* Pass 2: process columns. - * We remove the PASS1_BITS scaling, but leave the results scaled up - * by an overall factor of 8. - * We must also scale the output by 8/16 = 1/2. - */ - - dataptr = data; - for (ctr = DCTSIZE-1; ctr >= 0; ctr--) { - /* Even part per LL&M figure 1 --- note that published figure is faulty; - * rotator "sqrt(2)*c1" should be "sqrt(2)*c6". - */ - - tmp0 = dataptr[DCTSIZE*0] + dataptr[DCTSIZE*7]; - tmp1 = dataptr[DCTSIZE*1] + dataptr[DCTSIZE*6]; - tmp2 = dataptr[DCTSIZE*2] + dataptr[DCTSIZE*5]; - tmp3 = dataptr[DCTSIZE*3] + dataptr[DCTSIZE*4]; - - tmp10 = tmp0 + tmp3; - tmp12 = tmp0 - tmp3; - tmp11 = tmp1 + tmp2; - tmp13 = tmp1 - tmp2; - - tmp0 = dataptr[DCTSIZE*0] - dataptr[DCTSIZE*7]; - tmp1 = dataptr[DCTSIZE*1] - dataptr[DCTSIZE*6]; - tmp2 = dataptr[DCTSIZE*2] - dataptr[DCTSIZE*5]; - tmp3 = dataptr[DCTSIZE*3] - dataptr[DCTSIZE*4]; - - dataptr[DCTSIZE*0] = (DCTELEM) DESCALE(tmp10 + tmp11, PASS1_BITS+1); - dataptr[DCTSIZE*4] = (DCTELEM) DESCALE(tmp10 - tmp11, PASS1_BITS+1); - - z1 = MULTIPLY(tmp12 + tmp13, FIX_0_541196100); - dataptr[DCTSIZE*2] = (DCTELEM) DESCALE(z1 + MULTIPLY(tmp12, FIX_0_765366865), - CONST_BITS+PASS1_BITS+1); - dataptr[DCTSIZE*6] = (DCTELEM) DESCALE(z1 - MULTIPLY(tmp13, FIX_1_847759065), - CONST_BITS+PASS1_BITS+1); - - /* Odd part per figure 8 --- note paper omits factor of sqrt(2). - * 8-point FDCT kernel, cK represents sqrt(2) * cos(K*pi/16). - * i0..i3 in the paper are tmp0..tmp3 here. - */ - - tmp10 = tmp0 + tmp3; - tmp11 = tmp1 + tmp2; - tmp12 = tmp0 + tmp2; - tmp13 = tmp1 + tmp3; - z1 = MULTIPLY(tmp12 + tmp13, FIX_1_175875602); /* c3 */ - - tmp0 = MULTIPLY(tmp0, FIX_1_501321110); /* c1+c3-c5-c7 */ - tmp1 = MULTIPLY(tmp1, FIX_3_072711026); /* c1+c3+c5-c7 */ - tmp2 = MULTIPLY(tmp2, FIX_2_053119869); /* c1+c3-c5+c7 */ - tmp3 = MULTIPLY(tmp3, FIX_0_298631336); /* -c1+c3+c5-c7 */ - tmp10 = MULTIPLY(tmp10, - FIX_0_899976223); /* c7-c3 */ - tmp11 = MULTIPLY(tmp11, - FIX_2_562915447); /* -c1-c3 */ - tmp12 = MULTIPLY(tmp12, - FIX_0_390180644); /* c5-c3 */ - tmp13 = MULTIPLY(tmp13, - FIX_1_961570560); /* -c3-c5 */ - - tmp12 += z1; - tmp13 += z1; - - dataptr[DCTSIZE*1] = (DCTELEM) DESCALE(tmp0 + tmp10 + tmp12, - CONST_BITS+PASS1_BITS+1); - dataptr[DCTSIZE*3] = (DCTELEM) DESCALE(tmp1 + tmp11 + tmp13, - CONST_BITS+PASS1_BITS+1); - dataptr[DCTSIZE*5] = (DCTELEM) DESCALE(tmp2 + tmp11 + tmp12, - CONST_BITS+PASS1_BITS+1); - dataptr[DCTSIZE*7] = (DCTELEM) DESCALE(tmp3 + tmp10 + tmp13, - CONST_BITS+PASS1_BITS+1); - - dataptr++; /* advance pointer to next column */ - } -} - - -/* - * Perform the forward DCT on a 14x7 sample block. - * - * 14-point FDCT in pass 1 (rows), 7-point in pass 2 (columns). - */ - -GLOBAL(void) -jpeg_fdct_14x7 (DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col) -{ - INT32 tmp0, tmp1, tmp2, tmp3, tmp4, tmp5, tmp6; - INT32 tmp10, tmp11, tmp12, tmp13, tmp14, tmp15, tmp16; - INT32 z1, z2, z3; - DCTELEM *dataptr; - JSAMPROW elemptr; - int ctr; - SHIFT_TEMPS - - /* Zero bottom row of output coefficient block. */ - MEMZERO(&data[DCTSIZE*7], SIZEOF(DCTELEM) * DCTSIZE); - - /* Pass 1: process rows. */ - /* Note results are scaled up by sqrt(8) compared to a true DCT; */ - /* furthermore, we scale the results by 2**PASS1_BITS. */ - /* 14-point FDCT kernel, cK represents sqrt(2) * cos(K*pi/28). */ - - dataptr = data; - for (ctr = 0; ctr < 7; ctr++) { - elemptr = sample_data[ctr] + start_col; - - /* Even part */ - - tmp0 = GETJSAMPLE(elemptr[0]) + GETJSAMPLE(elemptr[13]); - tmp1 = GETJSAMPLE(elemptr[1]) + GETJSAMPLE(elemptr[12]); - tmp2 = GETJSAMPLE(elemptr[2]) + GETJSAMPLE(elemptr[11]); - tmp13 = GETJSAMPLE(elemptr[3]) + GETJSAMPLE(elemptr[10]); - tmp4 = GETJSAMPLE(elemptr[4]) + GETJSAMPLE(elemptr[9]); - tmp5 = GETJSAMPLE(elemptr[5]) + GETJSAMPLE(elemptr[8]); - tmp6 = GETJSAMPLE(elemptr[6]) + GETJSAMPLE(elemptr[7]); - - tmp10 = tmp0 + tmp6; - tmp14 = tmp0 - tmp6; - tmp11 = tmp1 + tmp5; - tmp15 = tmp1 - tmp5; - tmp12 = tmp2 + tmp4; - tmp16 = tmp2 - tmp4; - - tmp0 = GETJSAMPLE(elemptr[0]) - GETJSAMPLE(elemptr[13]); - tmp1 = GETJSAMPLE(elemptr[1]) - GETJSAMPLE(elemptr[12]); - tmp2 = GETJSAMPLE(elemptr[2]) - GETJSAMPLE(elemptr[11]); - tmp3 = GETJSAMPLE(elemptr[3]) - GETJSAMPLE(elemptr[10]); - tmp4 = GETJSAMPLE(elemptr[4]) - GETJSAMPLE(elemptr[9]); - tmp5 = GETJSAMPLE(elemptr[5]) - GETJSAMPLE(elemptr[8]); - tmp6 = GETJSAMPLE(elemptr[6]) - GETJSAMPLE(elemptr[7]); - - /* Apply unsigned->signed conversion */ - dataptr[0] = (DCTELEM) - ((tmp10 + tmp11 + tmp12 + tmp13 - 14 * CENTERJSAMPLE) << PASS1_BITS); - tmp13 += tmp13; - dataptr[4] = (DCTELEM) - DESCALE(MULTIPLY(tmp10 - tmp13, FIX(1.274162392)) + /* c4 */ - MULTIPLY(tmp11 - tmp13, FIX(0.314692123)) - /* c12 */ - MULTIPLY(tmp12 - tmp13, FIX(0.881747734)), /* c8 */ - CONST_BITS-PASS1_BITS); - - tmp10 = MULTIPLY(tmp14 + tmp15, FIX(1.105676686)); /* c6 */ - - dataptr[2] = (DCTELEM) - DESCALE(tmp10 + MULTIPLY(tmp14, FIX(0.273079590)) /* c2-c6 */ - + MULTIPLY(tmp16, FIX(0.613604268)), /* c10 */ - CONST_BITS-PASS1_BITS); - dataptr[6] = (DCTELEM) - DESCALE(tmp10 - MULTIPLY(tmp15, FIX(1.719280954)) /* c6+c10 */ - - MULTIPLY(tmp16, FIX(1.378756276)), /* c2 */ - CONST_BITS-PASS1_BITS); - - /* Odd part */ - - tmp10 = tmp1 + tmp2; - tmp11 = tmp5 - tmp4; - dataptr[7] = (DCTELEM) ((tmp0 - tmp10 + tmp3 - tmp11 - tmp6) << PASS1_BITS); - tmp3 <<= CONST_BITS; - tmp10 = MULTIPLY(tmp10, - FIX(0.158341681)); /* -c13 */ - tmp11 = MULTIPLY(tmp11, FIX(1.405321284)); /* c1 */ - tmp10 += tmp11 - tmp3; - tmp11 = MULTIPLY(tmp0 + tmp2, FIX(1.197448846)) + /* c5 */ - MULTIPLY(tmp4 + tmp6, FIX(0.752406978)); /* c9 */ - dataptr[5] = (DCTELEM) - DESCALE(tmp10 + tmp11 - MULTIPLY(tmp2, FIX(2.373959773)) /* c3+c5-c13 */ - + MULTIPLY(tmp4, FIX(1.119999435)), /* c1+c11-c9 */ - CONST_BITS-PASS1_BITS); - tmp12 = MULTIPLY(tmp0 + tmp1, FIX(1.334852607)) + /* c3 */ - MULTIPLY(tmp5 - tmp6, FIX(0.467085129)); /* c11 */ - dataptr[3] = (DCTELEM) - DESCALE(tmp10 + tmp12 - MULTIPLY(tmp1, FIX(0.424103948)) /* c3-c9-c13 */ - - MULTIPLY(tmp5, FIX(3.069855259)), /* c1+c5+c11 */ - CONST_BITS-PASS1_BITS); - dataptr[1] = (DCTELEM) - DESCALE(tmp11 + tmp12 + tmp3 + tmp6 - - MULTIPLY(tmp0 + tmp6, FIX(1.126980169)), /* c3+c5-c1 */ - CONST_BITS-PASS1_BITS); - - dataptr += DCTSIZE; /* advance pointer to next row */ - } - - /* Pass 2: process columns. - * We remove the PASS1_BITS scaling, but leave the results scaled up - * by an overall factor of 8. - * We must also scale the output by (8/14)*(8/7) = 32/49, which we - * partially fold into the constant multipliers and final shifting: - * 7-point FDCT kernel, cK represents sqrt(2) * cos(K*pi/14) * 64/49. - */ - - dataptr = data; - for (ctr = DCTSIZE-1; ctr >= 0; ctr--) { - /* Even part */ - - tmp0 = dataptr[DCTSIZE*0] + dataptr[DCTSIZE*6]; - tmp1 = dataptr[DCTSIZE*1] + dataptr[DCTSIZE*5]; - tmp2 = dataptr[DCTSIZE*2] + dataptr[DCTSIZE*4]; - tmp3 = dataptr[DCTSIZE*3]; - - tmp10 = dataptr[DCTSIZE*0] - dataptr[DCTSIZE*6]; - tmp11 = dataptr[DCTSIZE*1] - dataptr[DCTSIZE*5]; - tmp12 = dataptr[DCTSIZE*2] - dataptr[DCTSIZE*4]; - - z1 = tmp0 + tmp2; - dataptr[DCTSIZE*0] = (DCTELEM) - DESCALE(MULTIPLY(z1 + tmp1 + tmp3, FIX(1.306122449)), /* 64/49 */ - CONST_BITS+PASS1_BITS+1); - tmp3 += tmp3; - z1 -= tmp3; - z1 -= tmp3; - z1 = MULTIPLY(z1, FIX(0.461784020)); /* (c2+c6-c4)/2 */ - z2 = MULTIPLY(tmp0 - tmp2, FIX(1.202428084)); /* (c2+c4-c6)/2 */ - z3 = MULTIPLY(tmp1 - tmp2, FIX(0.411026446)); /* c6 */ - dataptr[DCTSIZE*2] = (DCTELEM) DESCALE(z1 + z2 + z3, CONST_BITS+PASS1_BITS+1); - z1 -= z2; - z2 = MULTIPLY(tmp0 - tmp1, FIX(1.151670509)); /* c4 */ - dataptr[DCTSIZE*4] = (DCTELEM) - DESCALE(z2 + z3 - MULTIPLY(tmp1 - tmp3, FIX(0.923568041)), /* c2+c6-c4 */ - CONST_BITS+PASS1_BITS+1); - dataptr[DCTSIZE*6] = (DCTELEM) DESCALE(z1 + z2, CONST_BITS+PASS1_BITS+1); - - /* Odd part */ - - tmp1 = MULTIPLY(tmp10 + tmp11, FIX(1.221765677)); /* (c3+c1-c5)/2 */ - tmp2 = MULTIPLY(tmp10 - tmp11, FIX(0.222383464)); /* (c3+c5-c1)/2 */ - tmp0 = tmp1 - tmp2; - tmp1 += tmp2; - tmp2 = MULTIPLY(tmp11 + tmp12, - FIX(1.800824523)); /* -c1 */ - tmp1 += tmp2; - tmp3 = MULTIPLY(tmp10 + tmp12, FIX(0.801442310)); /* c5 */ - tmp0 += tmp3; - tmp2 += tmp3 + MULTIPLY(tmp12, FIX(2.443531355)); /* c3+c1-c5 */ - - dataptr[DCTSIZE*1] = (DCTELEM) DESCALE(tmp0, CONST_BITS+PASS1_BITS+1); - dataptr[DCTSIZE*3] = (DCTELEM) DESCALE(tmp1, CONST_BITS+PASS1_BITS+1); - dataptr[DCTSIZE*5] = (DCTELEM) DESCALE(tmp2, CONST_BITS+PASS1_BITS+1); - - dataptr++; /* advance pointer to next column */ - } -} - - -/* - * Perform the forward DCT on a 12x6 sample block. - * - * 12-point FDCT in pass 1 (rows), 6-point in pass 2 (columns). - */ - -GLOBAL(void) -jpeg_fdct_12x6 (DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col) -{ - INT32 tmp0, tmp1, tmp2, tmp3, tmp4, tmp5; - INT32 tmp10, tmp11, tmp12, tmp13, tmp14, tmp15; - DCTELEM *dataptr; - JSAMPROW elemptr; - int ctr; - SHIFT_TEMPS - - /* Zero 2 bottom rows of output coefficient block. */ - MEMZERO(&data[DCTSIZE*6], SIZEOF(DCTELEM) * DCTSIZE * 2); - - /* Pass 1: process rows. */ - /* Note results are scaled up by sqrt(8) compared to a true DCT; */ - /* furthermore, we scale the results by 2**PASS1_BITS. */ - /* 12-point FDCT kernel, cK represents sqrt(2) * cos(K*pi/24). */ - - dataptr = data; - for (ctr = 0; ctr < 6; ctr++) { - elemptr = sample_data[ctr] + start_col; - - /* Even part */ - - tmp0 = GETJSAMPLE(elemptr[0]) + GETJSAMPLE(elemptr[11]); - tmp1 = GETJSAMPLE(elemptr[1]) + GETJSAMPLE(elemptr[10]); - tmp2 = GETJSAMPLE(elemptr[2]) + GETJSAMPLE(elemptr[9]); - tmp3 = GETJSAMPLE(elemptr[3]) + GETJSAMPLE(elemptr[8]); - tmp4 = GETJSAMPLE(elemptr[4]) + GETJSAMPLE(elemptr[7]); - tmp5 = GETJSAMPLE(elemptr[5]) + GETJSAMPLE(elemptr[6]); - - tmp10 = tmp0 + tmp5; - tmp13 = tmp0 - tmp5; - tmp11 = tmp1 + tmp4; - tmp14 = tmp1 - tmp4; - tmp12 = tmp2 + tmp3; - tmp15 = tmp2 - tmp3; - - tmp0 = GETJSAMPLE(elemptr[0]) - GETJSAMPLE(elemptr[11]); - tmp1 = GETJSAMPLE(elemptr[1]) - GETJSAMPLE(elemptr[10]); - tmp2 = GETJSAMPLE(elemptr[2]) - GETJSAMPLE(elemptr[9]); - tmp3 = GETJSAMPLE(elemptr[3]) - GETJSAMPLE(elemptr[8]); - tmp4 = GETJSAMPLE(elemptr[4]) - GETJSAMPLE(elemptr[7]); - tmp5 = GETJSAMPLE(elemptr[5]) - GETJSAMPLE(elemptr[6]); - - /* Apply unsigned->signed conversion */ - dataptr[0] = (DCTELEM) - ((tmp10 + tmp11 + tmp12 - 12 * CENTERJSAMPLE) << PASS1_BITS); - dataptr[6] = (DCTELEM) ((tmp13 - tmp14 - tmp15) << PASS1_BITS); - dataptr[4] = (DCTELEM) - DESCALE(MULTIPLY(tmp10 - tmp12, FIX(1.224744871)), /* c4 */ - CONST_BITS-PASS1_BITS); - dataptr[2] = (DCTELEM) - DESCALE(tmp14 - tmp15 + MULTIPLY(tmp13 + tmp15, FIX(1.366025404)), /* c2 */ - CONST_BITS-PASS1_BITS); - - /* Odd part */ - - tmp10 = MULTIPLY(tmp1 + tmp4, FIX_0_541196100); /* c9 */ - tmp14 = tmp10 + MULTIPLY(tmp1, FIX_0_765366865); /* c3-c9 */ - tmp15 = tmp10 - MULTIPLY(tmp4, FIX_1_847759065); /* c3+c9 */ - tmp12 = MULTIPLY(tmp0 + tmp2, FIX(1.121971054)); /* c5 */ - tmp13 = MULTIPLY(tmp0 + tmp3, FIX(0.860918669)); /* c7 */ - tmp10 = tmp12 + tmp13 + tmp14 - MULTIPLY(tmp0, FIX(0.580774953)) /* c5+c7-c1 */ - + MULTIPLY(tmp5, FIX(0.184591911)); /* c11 */ - tmp11 = MULTIPLY(tmp2 + tmp3, - FIX(0.184591911)); /* -c11 */ - tmp12 += tmp11 - tmp15 - MULTIPLY(tmp2, FIX(2.339493912)) /* c1+c5-c11 */ - + MULTIPLY(tmp5, FIX(0.860918669)); /* c7 */ - tmp13 += tmp11 - tmp14 + MULTIPLY(tmp3, FIX(0.725788011)) /* c1+c11-c7 */ - - MULTIPLY(tmp5, FIX(1.121971054)); /* c5 */ - tmp11 = tmp15 + MULTIPLY(tmp0 - tmp3, FIX(1.306562965)) /* c3 */ - - MULTIPLY(tmp2 + tmp5, FIX_0_541196100); /* c9 */ - - dataptr[1] = (DCTELEM) DESCALE(tmp10, CONST_BITS-PASS1_BITS); - dataptr[3] = (DCTELEM) DESCALE(tmp11, CONST_BITS-PASS1_BITS); - dataptr[5] = (DCTELEM) DESCALE(tmp12, CONST_BITS-PASS1_BITS); - dataptr[7] = (DCTELEM) DESCALE(tmp13, CONST_BITS-PASS1_BITS); - - dataptr += DCTSIZE; /* advance pointer to next row */ - } - - /* Pass 2: process columns. - * We remove the PASS1_BITS scaling, but leave the results scaled up - * by an overall factor of 8. - * We must also scale the output by (8/12)*(8/6) = 8/9, which we - * partially fold into the constant multipliers and final shifting: - * 6-point FDCT kernel, cK represents sqrt(2) * cos(K*pi/12) * 16/9. - */ - - dataptr = data; - for (ctr = DCTSIZE-1; ctr >= 0; ctr--) { - /* Even part */ - - tmp0 = dataptr[DCTSIZE*0] + dataptr[DCTSIZE*5]; - tmp11 = dataptr[DCTSIZE*1] + dataptr[DCTSIZE*4]; - tmp2 = dataptr[DCTSIZE*2] + dataptr[DCTSIZE*3]; - - tmp10 = tmp0 + tmp2; - tmp12 = tmp0 - tmp2; - - tmp0 = dataptr[DCTSIZE*0] - dataptr[DCTSIZE*5]; - tmp1 = dataptr[DCTSIZE*1] - dataptr[DCTSIZE*4]; - tmp2 = dataptr[DCTSIZE*2] - dataptr[DCTSIZE*3]; - - dataptr[DCTSIZE*0] = (DCTELEM) - DESCALE(MULTIPLY(tmp10 + tmp11, FIX(1.777777778)), /* 16/9 */ - CONST_BITS+PASS1_BITS+1); - dataptr[DCTSIZE*2] = (DCTELEM) - DESCALE(MULTIPLY(tmp12, FIX(2.177324216)), /* c2 */ - CONST_BITS+PASS1_BITS+1); - dataptr[DCTSIZE*4] = (DCTELEM) - DESCALE(MULTIPLY(tmp10 - tmp11 - tmp11, FIX(1.257078722)), /* c4 */ - CONST_BITS+PASS1_BITS+1); - - /* Odd part */ - - tmp10 = MULTIPLY(tmp0 + tmp2, FIX(0.650711829)); /* c5 */ - - dataptr[DCTSIZE*1] = (DCTELEM) - DESCALE(tmp10 + MULTIPLY(tmp0 + tmp1, FIX(1.777777778)), /* 16/9 */ - CONST_BITS+PASS1_BITS+1); - dataptr[DCTSIZE*3] = (DCTELEM) - DESCALE(MULTIPLY(tmp0 - tmp1 - tmp2, FIX(1.777777778)), /* 16/9 */ - CONST_BITS+PASS1_BITS+1); - dataptr[DCTSIZE*5] = (DCTELEM) - DESCALE(tmp10 + MULTIPLY(tmp2 - tmp1, FIX(1.777777778)), /* 16/9 */ - CONST_BITS+PASS1_BITS+1); - - dataptr++; /* advance pointer to next column */ - } -} - - -/* - * Perform the forward DCT on a 10x5 sample block. - * - * 10-point FDCT in pass 1 (rows), 5-point in pass 2 (columns). - */ - -GLOBAL(void) -jpeg_fdct_10x5 (DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col) -{ - INT32 tmp0, tmp1, tmp2, tmp3, tmp4; - INT32 tmp10, tmp11, tmp12, tmp13, tmp14; - DCTELEM *dataptr; - JSAMPROW elemptr; - int ctr; - SHIFT_TEMPS - - /* Zero 3 bottom rows of output coefficient block. */ - MEMZERO(&data[DCTSIZE*5], SIZEOF(DCTELEM) * DCTSIZE * 3); - - /* Pass 1: process rows. */ - /* Note results are scaled up by sqrt(8) compared to a true DCT; */ - /* furthermore, we scale the results by 2**PASS1_BITS. */ - /* 10-point FDCT kernel, cK represents sqrt(2) * cos(K*pi/20). */ - - dataptr = data; - for (ctr = 0; ctr < 5; ctr++) { - elemptr = sample_data[ctr] + start_col; - - /* Even part */ - - tmp0 = GETJSAMPLE(elemptr[0]) + GETJSAMPLE(elemptr[9]); - tmp1 = GETJSAMPLE(elemptr[1]) + GETJSAMPLE(elemptr[8]); - tmp12 = GETJSAMPLE(elemptr[2]) + GETJSAMPLE(elemptr[7]); - tmp3 = GETJSAMPLE(elemptr[3]) + GETJSAMPLE(elemptr[6]); - tmp4 = GETJSAMPLE(elemptr[4]) + GETJSAMPLE(elemptr[5]); - - tmp10 = tmp0 + tmp4; - tmp13 = tmp0 - tmp4; - tmp11 = tmp1 + tmp3; - tmp14 = tmp1 - tmp3; - - tmp0 = GETJSAMPLE(elemptr[0]) - GETJSAMPLE(elemptr[9]); - tmp1 = GETJSAMPLE(elemptr[1]) - GETJSAMPLE(elemptr[8]); - tmp2 = GETJSAMPLE(elemptr[2]) - GETJSAMPLE(elemptr[7]); - tmp3 = GETJSAMPLE(elemptr[3]) - GETJSAMPLE(elemptr[6]); - tmp4 = GETJSAMPLE(elemptr[4]) - GETJSAMPLE(elemptr[5]); - - /* Apply unsigned->signed conversion */ - dataptr[0] = (DCTELEM) - ((tmp10 + tmp11 + tmp12 - 10 * CENTERJSAMPLE) << PASS1_BITS); - tmp12 += tmp12; - dataptr[4] = (DCTELEM) - DESCALE(MULTIPLY(tmp10 - tmp12, FIX(1.144122806)) - /* c4 */ - MULTIPLY(tmp11 - tmp12, FIX(0.437016024)), /* c8 */ - CONST_BITS-PASS1_BITS); - tmp10 = MULTIPLY(tmp13 + tmp14, FIX(0.831253876)); /* c6 */ - dataptr[2] = (DCTELEM) - DESCALE(tmp10 + MULTIPLY(tmp13, FIX(0.513743148)), /* c2-c6 */ - CONST_BITS-PASS1_BITS); - dataptr[6] = (DCTELEM) - DESCALE(tmp10 - MULTIPLY(tmp14, FIX(2.176250899)), /* c2+c6 */ - CONST_BITS-PASS1_BITS); - - /* Odd part */ - - tmp10 = tmp0 + tmp4; - tmp11 = tmp1 - tmp3; - dataptr[5] = (DCTELEM) ((tmp10 - tmp11 - tmp2) << PASS1_BITS); - tmp2 <<= CONST_BITS; - dataptr[1] = (DCTELEM) - DESCALE(MULTIPLY(tmp0, FIX(1.396802247)) + /* c1 */ - MULTIPLY(tmp1, FIX(1.260073511)) + tmp2 + /* c3 */ - MULTIPLY(tmp3, FIX(0.642039522)) + /* c7 */ - MULTIPLY(tmp4, FIX(0.221231742)), /* c9 */ - CONST_BITS-PASS1_BITS); - tmp12 = MULTIPLY(tmp0 - tmp4, FIX(0.951056516)) - /* (c3+c7)/2 */ - MULTIPLY(tmp1 + tmp3, FIX(0.587785252)); /* (c1-c9)/2 */ - tmp13 = MULTIPLY(tmp10 + tmp11, FIX(0.309016994)) + /* (c3-c7)/2 */ - (tmp11 << (CONST_BITS - 1)) - tmp2; - dataptr[3] = (DCTELEM) DESCALE(tmp12 + tmp13, CONST_BITS-PASS1_BITS); - dataptr[7] = (DCTELEM) DESCALE(tmp12 - tmp13, CONST_BITS-PASS1_BITS); - - dataptr += DCTSIZE; /* advance pointer to next row */ - } - - /* Pass 2: process columns. - * We remove the PASS1_BITS scaling, but leave the results scaled up - * by an overall factor of 8. - * We must also scale the output by (8/10)*(8/5) = 32/25, which we - * fold into the constant multipliers: - * 5-point FDCT kernel, cK represents sqrt(2) * cos(K*pi/10) * 32/25. - */ - - dataptr = data; - for (ctr = DCTSIZE-1; ctr >= 0; ctr--) { - /* Even part */ - - tmp0 = dataptr[DCTSIZE*0] + dataptr[DCTSIZE*4]; - tmp1 = dataptr[DCTSIZE*1] + dataptr[DCTSIZE*3]; - tmp2 = dataptr[DCTSIZE*2]; - - tmp10 = tmp0 + tmp1; - tmp11 = tmp0 - tmp1; - - tmp0 = dataptr[DCTSIZE*0] - dataptr[DCTSIZE*4]; - tmp1 = dataptr[DCTSIZE*1] - dataptr[DCTSIZE*3]; - - dataptr[DCTSIZE*0] = (DCTELEM) - DESCALE(MULTIPLY(tmp10 + tmp2, FIX(1.28)), /* 32/25 */ - CONST_BITS+PASS1_BITS); - tmp11 = MULTIPLY(tmp11, FIX(1.011928851)); /* (c2+c4)/2 */ - tmp10 -= tmp2 << 2; - tmp10 = MULTIPLY(tmp10, FIX(0.452548340)); /* (c2-c4)/2 */ - dataptr[DCTSIZE*2] = (DCTELEM) DESCALE(tmp11 + tmp10, CONST_BITS+PASS1_BITS); - dataptr[DCTSIZE*4] = (DCTELEM) DESCALE(tmp11 - tmp10, CONST_BITS+PASS1_BITS); - - /* Odd part */ - - tmp10 = MULTIPLY(tmp0 + tmp1, FIX(1.064004961)); /* c3 */ - - dataptr[DCTSIZE*1] = (DCTELEM) - DESCALE(tmp10 + MULTIPLY(tmp0, FIX(0.657591230)), /* c1-c3 */ - CONST_BITS+PASS1_BITS); - dataptr[DCTSIZE*3] = (DCTELEM) - DESCALE(tmp10 - MULTIPLY(tmp1, FIX(2.785601151)), /* c1+c3 */ - CONST_BITS+PASS1_BITS); - - dataptr++; /* advance pointer to next column */ - } -} - - -/* - * Perform the forward DCT on an 8x4 sample block. - * - * 8-point FDCT in pass 1 (rows), 4-point in pass 2 (columns). - */ - -GLOBAL(void) -jpeg_fdct_8x4 (DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col) -{ - INT32 tmp0, tmp1, tmp2, tmp3; - INT32 tmp10, tmp11, tmp12, tmp13; - INT32 z1; - DCTELEM *dataptr; - JSAMPROW elemptr; - int ctr; - SHIFT_TEMPS - - /* Zero 4 bottom rows of output coefficient block. */ - MEMZERO(&data[DCTSIZE*4], SIZEOF(DCTELEM) * DCTSIZE * 4); - - /* Pass 1: process rows. */ - /* Note results are scaled up by sqrt(8) compared to a true DCT; */ - /* furthermore, we scale the results by 2**PASS1_BITS. */ - /* We must also scale the output by 8/4 = 2, which we add here. */ - - dataptr = data; - for (ctr = 0; ctr < 4; ctr++) { - elemptr = sample_data[ctr] + start_col; - - /* Even part per LL&M figure 1 --- note that published figure is faulty; - * rotator "sqrt(2)*c1" should be "sqrt(2)*c6". - */ - - tmp0 = GETJSAMPLE(elemptr[0]) + GETJSAMPLE(elemptr[7]); - tmp1 = GETJSAMPLE(elemptr[1]) + GETJSAMPLE(elemptr[6]); - tmp2 = GETJSAMPLE(elemptr[2]) + GETJSAMPLE(elemptr[5]); - tmp3 = GETJSAMPLE(elemptr[3]) + GETJSAMPLE(elemptr[4]); - - tmp10 = tmp0 + tmp3; - tmp12 = tmp0 - tmp3; - tmp11 = tmp1 + tmp2; - tmp13 = tmp1 - tmp2; - - tmp0 = GETJSAMPLE(elemptr[0]) - GETJSAMPLE(elemptr[7]); - tmp1 = GETJSAMPLE(elemptr[1]) - GETJSAMPLE(elemptr[6]); - tmp2 = GETJSAMPLE(elemptr[2]) - GETJSAMPLE(elemptr[5]); - tmp3 = GETJSAMPLE(elemptr[3]) - GETJSAMPLE(elemptr[4]); - - /* Apply unsigned->signed conversion */ - dataptr[0] = (DCTELEM) - ((tmp10 + tmp11 - 8 * CENTERJSAMPLE) << (PASS1_BITS+1)); - dataptr[4] = (DCTELEM) ((tmp10 - tmp11) << (PASS1_BITS+1)); - - z1 = MULTIPLY(tmp12 + tmp13, FIX_0_541196100); - /* Add fudge factor here for final descale. */ - z1 += ONE << (CONST_BITS-PASS1_BITS-2); - dataptr[2] = (DCTELEM) RIGHT_SHIFT(z1 + MULTIPLY(tmp12, FIX_0_765366865), - CONST_BITS-PASS1_BITS-1); - dataptr[6] = (DCTELEM) RIGHT_SHIFT(z1 - MULTIPLY(tmp13, FIX_1_847759065), - CONST_BITS-PASS1_BITS-1); - - /* Odd part per figure 8 --- note paper omits factor of sqrt(2). - * 8-point FDCT kernel, cK represents sqrt(2) * cos(K*pi/16). - * i0..i3 in the paper are tmp0..tmp3 here. - */ - - tmp10 = tmp0 + tmp3; - tmp11 = tmp1 + tmp2; - tmp12 = tmp0 + tmp2; - tmp13 = tmp1 + tmp3; - z1 = MULTIPLY(tmp12 + tmp13, FIX_1_175875602); /* c3 */ - /* Add fudge factor here for final descale. */ - z1 += ONE << (CONST_BITS-PASS1_BITS-2); - - tmp0 = MULTIPLY(tmp0, FIX_1_501321110); /* c1+c3-c5-c7 */ - tmp1 = MULTIPLY(tmp1, FIX_3_072711026); /* c1+c3+c5-c7 */ - tmp2 = MULTIPLY(tmp2, FIX_2_053119869); /* c1+c3-c5+c7 */ - tmp3 = MULTIPLY(tmp3, FIX_0_298631336); /* -c1+c3+c5-c7 */ - tmp10 = MULTIPLY(tmp10, - FIX_0_899976223); /* c7-c3 */ - tmp11 = MULTIPLY(tmp11, - FIX_2_562915447); /* -c1-c3 */ - tmp12 = MULTIPLY(tmp12, - FIX_0_390180644); /* c5-c3 */ - tmp13 = MULTIPLY(tmp13, - FIX_1_961570560); /* -c3-c5 */ - - tmp12 += z1; - tmp13 += z1; - - dataptr[1] = (DCTELEM) - RIGHT_SHIFT(tmp0 + tmp10 + tmp12, CONST_BITS-PASS1_BITS-1); - dataptr[3] = (DCTELEM) - RIGHT_SHIFT(tmp1 + tmp11 + tmp13, CONST_BITS-PASS1_BITS-1); - dataptr[5] = (DCTELEM) - RIGHT_SHIFT(tmp2 + tmp11 + tmp12, CONST_BITS-PASS1_BITS-1); - dataptr[7] = (DCTELEM) - RIGHT_SHIFT(tmp3 + tmp10 + tmp13, CONST_BITS-PASS1_BITS-1); - - dataptr += DCTSIZE; /* advance pointer to next row */ - } - - /* Pass 2: process columns. - * We remove the PASS1_BITS scaling, but leave the results scaled up - * by an overall factor of 8. - * 4-point FDCT kernel, cK represents sqrt(2) * cos(K*pi/16). - */ - - dataptr = data; - for (ctr = DCTSIZE-1; ctr >= 0; ctr--) { - /* Even part */ - - /* Add fudge factor here for final descale. */ - tmp0 = dataptr[DCTSIZE*0] + dataptr[DCTSIZE*3] + (ONE << (PASS1_BITS-1)); - tmp1 = dataptr[DCTSIZE*1] + dataptr[DCTSIZE*2]; - - tmp10 = dataptr[DCTSIZE*0] - dataptr[DCTSIZE*3]; - tmp11 = dataptr[DCTSIZE*1] - dataptr[DCTSIZE*2]; - - dataptr[DCTSIZE*0] = (DCTELEM) RIGHT_SHIFT(tmp0 + tmp1, PASS1_BITS); - dataptr[DCTSIZE*2] = (DCTELEM) RIGHT_SHIFT(tmp0 - tmp1, PASS1_BITS); - - /* Odd part */ - - tmp0 = MULTIPLY(tmp10 + tmp11, FIX_0_541196100); /* c6 */ - /* Add fudge factor here for final descale. */ - tmp0 += ONE << (CONST_BITS+PASS1_BITS-1); - - dataptr[DCTSIZE*1] = (DCTELEM) - RIGHT_SHIFT(tmp0 + MULTIPLY(tmp10, FIX_0_765366865), /* c2-c6 */ - CONST_BITS+PASS1_BITS); - dataptr[DCTSIZE*3] = (DCTELEM) - RIGHT_SHIFT(tmp0 - MULTIPLY(tmp11, FIX_1_847759065), /* c2+c6 */ - CONST_BITS+PASS1_BITS); - - dataptr++; /* advance pointer to next column */ - } -} - - -/* - * Perform the forward DCT on a 6x3 sample block. - * - * 6-point FDCT in pass 1 (rows), 3-point in pass 2 (columns). - */ - -GLOBAL(void) -jpeg_fdct_6x3 (DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col) -{ - INT32 tmp0, tmp1, tmp2; - INT32 tmp10, tmp11, tmp12; - DCTELEM *dataptr; - JSAMPROW elemptr; - int ctr; - SHIFT_TEMPS - - /* Pre-zero output coefficient block. */ - MEMZERO(data, SIZEOF(DCTELEM) * DCTSIZE2); - - /* Pass 1: process rows. */ - /* Note results are scaled up by sqrt(8) compared to a true DCT; */ - /* furthermore, we scale the results by 2**PASS1_BITS. */ - /* We scale the results further by 2 as part of output adaption */ - /* scaling for different DCT size. */ - /* 6-point FDCT kernel, cK represents sqrt(2) * cos(K*pi/12). */ - - dataptr = data; - for (ctr = 0; ctr < 3; ctr++) { - elemptr = sample_data[ctr] + start_col; - - /* Even part */ - - tmp0 = GETJSAMPLE(elemptr[0]) + GETJSAMPLE(elemptr[5]); - tmp11 = GETJSAMPLE(elemptr[1]) + GETJSAMPLE(elemptr[4]); - tmp2 = GETJSAMPLE(elemptr[2]) + GETJSAMPLE(elemptr[3]); - - tmp10 = tmp0 + tmp2; - tmp12 = tmp0 - tmp2; - - tmp0 = GETJSAMPLE(elemptr[0]) - GETJSAMPLE(elemptr[5]); - tmp1 = GETJSAMPLE(elemptr[1]) - GETJSAMPLE(elemptr[4]); - tmp2 = GETJSAMPLE(elemptr[2]) - GETJSAMPLE(elemptr[3]); - - /* Apply unsigned->signed conversion */ - dataptr[0] = (DCTELEM) - ((tmp10 + tmp11 - 6 * CENTERJSAMPLE) << (PASS1_BITS+1)); - dataptr[2] = (DCTELEM) - DESCALE(MULTIPLY(tmp12, FIX(1.224744871)), /* c2 */ - CONST_BITS-PASS1_BITS-1); - dataptr[4] = (DCTELEM) - DESCALE(MULTIPLY(tmp10 - tmp11 - tmp11, FIX(0.707106781)), /* c4 */ - CONST_BITS-PASS1_BITS-1); - - /* Odd part */ - - tmp10 = DESCALE(MULTIPLY(tmp0 + tmp2, FIX(0.366025404)), /* c5 */ - CONST_BITS-PASS1_BITS-1); - - dataptr[1] = (DCTELEM) (tmp10 + ((tmp0 + tmp1) << (PASS1_BITS+1))); - dataptr[3] = (DCTELEM) ((tmp0 - tmp1 - tmp2) << (PASS1_BITS+1)); - dataptr[5] = (DCTELEM) (tmp10 + ((tmp2 - tmp1) << (PASS1_BITS+1))); - - dataptr += DCTSIZE; /* advance pointer to next row */ - } - - /* Pass 2: process columns. - * We remove the PASS1_BITS scaling, but leave the results scaled up - * by an overall factor of 8. - * We must also scale the output by (8/6)*(8/3) = 32/9, which we partially - * fold into the constant multipliers (other part was done in pass 1): - * 3-point FDCT kernel, cK represents sqrt(2) * cos(K*pi/6) * 16/9. - */ - - dataptr = data; - for (ctr = 0; ctr < 6; ctr++) { - /* Even part */ - - tmp0 = dataptr[DCTSIZE*0] + dataptr[DCTSIZE*2]; - tmp1 = dataptr[DCTSIZE*1]; - - tmp2 = dataptr[DCTSIZE*0] - dataptr[DCTSIZE*2]; - - dataptr[DCTSIZE*0] = (DCTELEM) - DESCALE(MULTIPLY(tmp0 + tmp1, FIX(1.777777778)), /* 16/9 */ - CONST_BITS+PASS1_BITS); - dataptr[DCTSIZE*2] = (DCTELEM) - DESCALE(MULTIPLY(tmp0 - tmp1 - tmp1, FIX(1.257078722)), /* c2 */ - CONST_BITS+PASS1_BITS); - - /* Odd part */ - - dataptr[DCTSIZE*1] = (DCTELEM) - DESCALE(MULTIPLY(tmp2, FIX(2.177324216)), /* c1 */ - CONST_BITS+PASS1_BITS); - - dataptr++; /* advance pointer to next column */ - } -} - - -/* - * Perform the forward DCT on a 4x2 sample block. - * - * 4-point FDCT in pass 1 (rows), 2-point in pass 2 (columns). - */ - -GLOBAL(void) -jpeg_fdct_4x2 (DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col) -{ - INT32 tmp0, tmp1; - INT32 tmp10, tmp11; - DCTELEM *dataptr; - JSAMPROW elemptr; - int ctr; - SHIFT_TEMPS - - /* Pre-zero output coefficient block. */ - MEMZERO(data, SIZEOF(DCTELEM) * DCTSIZE2); - - /* Pass 1: process rows. */ - /* Note results are scaled up by sqrt(8) compared to a true DCT; */ - /* furthermore, we scale the results by 2**PASS1_BITS. */ - /* We must also scale the output by (8/4)*(8/2) = 2**3, which we add here. */ - /* 4-point FDCT kernel, */ - /* cK represents sqrt(2) * cos(K*pi/16) [refers to 8-point FDCT]. */ - - dataptr = data; - for (ctr = 0; ctr < 2; ctr++) { - elemptr = sample_data[ctr] + start_col; - - /* Even part */ - - tmp0 = GETJSAMPLE(elemptr[0]) + GETJSAMPLE(elemptr[3]); - tmp1 = GETJSAMPLE(elemptr[1]) + GETJSAMPLE(elemptr[2]); - - tmp10 = GETJSAMPLE(elemptr[0]) - GETJSAMPLE(elemptr[3]); - tmp11 = GETJSAMPLE(elemptr[1]) - GETJSAMPLE(elemptr[2]); - - /* Apply unsigned->signed conversion */ - dataptr[0] = (DCTELEM) - ((tmp0 + tmp1 - 4 * CENTERJSAMPLE) << (PASS1_BITS+3)); - dataptr[2] = (DCTELEM) ((tmp0 - tmp1) << (PASS1_BITS+3)); - - /* Odd part */ - - tmp0 = MULTIPLY(tmp10 + tmp11, FIX_0_541196100); /* c6 */ - /* Add fudge factor here for final descale. */ - tmp0 += ONE << (CONST_BITS-PASS1_BITS-4); - - dataptr[1] = (DCTELEM) - RIGHT_SHIFT(tmp0 + MULTIPLY(tmp10, FIX_0_765366865), /* c2-c6 */ - CONST_BITS-PASS1_BITS-3); - dataptr[3] = (DCTELEM) - RIGHT_SHIFT(tmp0 - MULTIPLY(tmp11, FIX_1_847759065), /* c2+c6 */ - CONST_BITS-PASS1_BITS-3); - - dataptr += DCTSIZE; /* advance pointer to next row */ - } - - /* Pass 2: process columns. - * We remove the PASS1_BITS scaling, but leave the results scaled up - * by an overall factor of 8. - */ - - dataptr = data; - for (ctr = 0; ctr < 4; ctr++) { - /* Even part */ - - /* Add fudge factor here for final descale. */ - tmp0 = dataptr[DCTSIZE*0] + (ONE << (PASS1_BITS-1)); - tmp1 = dataptr[DCTSIZE*1]; - - dataptr[DCTSIZE*0] = (DCTELEM) RIGHT_SHIFT(tmp0 + tmp1, PASS1_BITS); - - /* Odd part */ - - dataptr[DCTSIZE*1] = (DCTELEM) RIGHT_SHIFT(tmp0 - tmp1, PASS1_BITS); - - dataptr++; /* advance pointer to next column */ - } -} - - -/* - * Perform the forward DCT on a 2x1 sample block. - * - * 2-point FDCT in pass 1 (rows), 1-point in pass 2 (columns). - */ - -GLOBAL(void) -jpeg_fdct_2x1 (DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col) -{ - INT32 tmp0, tmp1; - JSAMPROW elemptr; - - /* Pre-zero output coefficient block. */ - MEMZERO(data, SIZEOF(DCTELEM) * DCTSIZE2); - - elemptr = sample_data[0] + start_col; - - tmp0 = GETJSAMPLE(elemptr[0]); - tmp1 = GETJSAMPLE(elemptr[1]); - - /* We leave the results scaled up by an overall factor of 8. - * We must also scale the output by (8/2)*(8/1) = 2**5. - */ - - /* Even part */ - /* Apply unsigned->signed conversion */ - data[0] = (DCTELEM) ((tmp0 + tmp1 - 2 * CENTERJSAMPLE) << 5); - - /* Odd part */ - data[1] = (DCTELEM) ((tmp0 - tmp1) << 5); -} - - -/* - * Perform the forward DCT on an 8x16 sample block. - * - * 8-point FDCT in pass 1 (rows), 16-point in pass 2 (columns). - */ - -GLOBAL(void) -jpeg_fdct_8x16 (DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col) -{ - INT32 tmp0, tmp1, tmp2, tmp3, tmp4, tmp5, tmp6, tmp7; - INT32 tmp10, tmp11, tmp12, tmp13, tmp14, tmp15, tmp16, tmp17; - INT32 z1; - DCTELEM workspace[DCTSIZE2]; - DCTELEM *dataptr; - DCTELEM *wsptr; - JSAMPROW elemptr; - int ctr; - SHIFT_TEMPS - - /* Pass 1: process rows. */ - /* Note results are scaled up by sqrt(8) compared to a true DCT; */ - /* furthermore, we scale the results by 2**PASS1_BITS. */ - - dataptr = data; - ctr = 0; - for (;;) { - elemptr = sample_data[ctr] + start_col; - - /* Even part per LL&M figure 1 --- note that published figure is faulty; - * rotator "sqrt(2)*c1" should be "sqrt(2)*c6". - */ - - tmp0 = GETJSAMPLE(elemptr[0]) + GETJSAMPLE(elemptr[7]); - tmp1 = GETJSAMPLE(elemptr[1]) + GETJSAMPLE(elemptr[6]); - tmp2 = GETJSAMPLE(elemptr[2]) + GETJSAMPLE(elemptr[5]); - tmp3 = GETJSAMPLE(elemptr[3]) + GETJSAMPLE(elemptr[4]); - - tmp10 = tmp0 + tmp3; - tmp12 = tmp0 - tmp3; - tmp11 = tmp1 + tmp2; - tmp13 = tmp1 - tmp2; - - tmp0 = GETJSAMPLE(elemptr[0]) - GETJSAMPLE(elemptr[7]); - tmp1 = GETJSAMPLE(elemptr[1]) - GETJSAMPLE(elemptr[6]); - tmp2 = GETJSAMPLE(elemptr[2]) - GETJSAMPLE(elemptr[5]); - tmp3 = GETJSAMPLE(elemptr[3]) - GETJSAMPLE(elemptr[4]); - - /* Apply unsigned->signed conversion */ - dataptr[0] = (DCTELEM) ((tmp10 + tmp11 - 8 * CENTERJSAMPLE) << PASS1_BITS); - dataptr[4] = (DCTELEM) ((tmp10 - tmp11) << PASS1_BITS); - - z1 = MULTIPLY(tmp12 + tmp13, FIX_0_541196100); - dataptr[2] = (DCTELEM) DESCALE(z1 + MULTIPLY(tmp12, FIX_0_765366865), - CONST_BITS-PASS1_BITS); - dataptr[6] = (DCTELEM) DESCALE(z1 - MULTIPLY(tmp13, FIX_1_847759065), - CONST_BITS-PASS1_BITS); - - /* Odd part per figure 8 --- note paper omits factor of sqrt(2). - * 8-point FDCT kernel, cK represents sqrt(2) * cos(K*pi/16). - * i0..i3 in the paper are tmp0..tmp3 here. - */ - - tmp10 = tmp0 + tmp3; - tmp11 = tmp1 + tmp2; - tmp12 = tmp0 + tmp2; - tmp13 = tmp1 + tmp3; - z1 = MULTIPLY(tmp12 + tmp13, FIX_1_175875602); /* c3 */ - - tmp0 = MULTIPLY(tmp0, FIX_1_501321110); /* c1+c3-c5-c7 */ - tmp1 = MULTIPLY(tmp1, FIX_3_072711026); /* c1+c3+c5-c7 */ - tmp2 = MULTIPLY(tmp2, FIX_2_053119869); /* c1+c3-c5+c7 */ - tmp3 = MULTIPLY(tmp3, FIX_0_298631336); /* -c1+c3+c5-c7 */ - tmp10 = MULTIPLY(tmp10, - FIX_0_899976223); /* c7-c3 */ - tmp11 = MULTIPLY(tmp11, - FIX_2_562915447); /* -c1-c3 */ - tmp12 = MULTIPLY(tmp12, - FIX_0_390180644); /* c5-c3 */ - tmp13 = MULTIPLY(tmp13, - FIX_1_961570560); /* -c3-c5 */ - - tmp12 += z1; - tmp13 += z1; - - dataptr[1] = (DCTELEM) DESCALE(tmp0 + tmp10 + tmp12, CONST_BITS-PASS1_BITS); - dataptr[3] = (DCTELEM) DESCALE(tmp1 + tmp11 + tmp13, CONST_BITS-PASS1_BITS); - dataptr[5] = (DCTELEM) DESCALE(tmp2 + tmp11 + tmp12, CONST_BITS-PASS1_BITS); - dataptr[7] = (DCTELEM) DESCALE(tmp3 + tmp10 + tmp13, CONST_BITS-PASS1_BITS); - - ctr++; - - if (ctr != DCTSIZE) { - if (ctr == DCTSIZE * 2) - break; /* Done. */ - dataptr += DCTSIZE; /* advance pointer to next row */ - } else - dataptr = workspace; /* switch pointer to extended workspace */ - } - - /* Pass 2: process columns. - * We remove the PASS1_BITS scaling, but leave the results scaled up - * by an overall factor of 8. - * We must also scale the output by 8/16 = 1/2. - * 16-point FDCT kernel, cK represents sqrt(2) * cos(K*pi/32). - */ - - dataptr = data; - wsptr = workspace; - for (ctr = DCTSIZE-1; ctr >= 0; ctr--) { - /* Even part */ - - tmp0 = dataptr[DCTSIZE*0] + wsptr[DCTSIZE*7]; - tmp1 = dataptr[DCTSIZE*1] + wsptr[DCTSIZE*6]; - tmp2 = dataptr[DCTSIZE*2] + wsptr[DCTSIZE*5]; - tmp3 = dataptr[DCTSIZE*3] + wsptr[DCTSIZE*4]; - tmp4 = dataptr[DCTSIZE*4] + wsptr[DCTSIZE*3]; - tmp5 = dataptr[DCTSIZE*5] + wsptr[DCTSIZE*2]; - tmp6 = dataptr[DCTSIZE*6] + wsptr[DCTSIZE*1]; - tmp7 = dataptr[DCTSIZE*7] + wsptr[DCTSIZE*0]; - - tmp10 = tmp0 + tmp7; - tmp14 = tmp0 - tmp7; - tmp11 = tmp1 + tmp6; - tmp15 = tmp1 - tmp6; - tmp12 = tmp2 + tmp5; - tmp16 = tmp2 - tmp5; - tmp13 = tmp3 + tmp4; - tmp17 = tmp3 - tmp4; - - tmp0 = dataptr[DCTSIZE*0] - wsptr[DCTSIZE*7]; - tmp1 = dataptr[DCTSIZE*1] - wsptr[DCTSIZE*6]; - tmp2 = dataptr[DCTSIZE*2] - wsptr[DCTSIZE*5]; - tmp3 = dataptr[DCTSIZE*3] - wsptr[DCTSIZE*4]; - tmp4 = dataptr[DCTSIZE*4] - wsptr[DCTSIZE*3]; - tmp5 = dataptr[DCTSIZE*5] - wsptr[DCTSIZE*2]; - tmp6 = dataptr[DCTSIZE*6] - wsptr[DCTSIZE*1]; - tmp7 = dataptr[DCTSIZE*7] - wsptr[DCTSIZE*0]; - - dataptr[DCTSIZE*0] = (DCTELEM) - DESCALE(tmp10 + tmp11 + tmp12 + tmp13, PASS1_BITS+1); - dataptr[DCTSIZE*4] = (DCTELEM) - DESCALE(MULTIPLY(tmp10 - tmp13, FIX(1.306562965)) + /* c4[16] = c2[8] */ - MULTIPLY(tmp11 - tmp12, FIX_0_541196100), /* c12[16] = c6[8] */ - CONST_BITS+PASS1_BITS+1); - - tmp10 = MULTIPLY(tmp17 - tmp15, FIX(0.275899379)) + /* c14[16] = c7[8] */ - MULTIPLY(tmp14 - tmp16, FIX(1.387039845)); /* c2[16] = c1[8] */ - - dataptr[DCTSIZE*2] = (DCTELEM) - DESCALE(tmp10 + MULTIPLY(tmp15, FIX(1.451774982)) /* c6+c14 */ - + MULTIPLY(tmp16, FIX(2.172734804)), /* c2+c10 */ - CONST_BITS+PASS1_BITS+1); - dataptr[DCTSIZE*6] = (DCTELEM) - DESCALE(tmp10 - MULTIPLY(tmp14, FIX(0.211164243)) /* c2-c6 */ - - MULTIPLY(tmp17, FIX(1.061594338)), /* c10+c14 */ - CONST_BITS+PASS1_BITS+1); - - /* Odd part */ - - tmp11 = MULTIPLY(tmp0 + tmp1, FIX(1.353318001)) + /* c3 */ - MULTIPLY(tmp6 - tmp7, FIX(0.410524528)); /* c13 */ - tmp12 = MULTIPLY(tmp0 + tmp2, FIX(1.247225013)) + /* c5 */ - MULTIPLY(tmp5 + tmp7, FIX(0.666655658)); /* c11 */ - tmp13 = MULTIPLY(tmp0 + tmp3, FIX(1.093201867)) + /* c7 */ - MULTIPLY(tmp4 - tmp7, FIX(0.897167586)); /* c9 */ - tmp14 = MULTIPLY(tmp1 + tmp2, FIX(0.138617169)) + /* c15 */ - MULTIPLY(tmp6 - tmp5, FIX(1.407403738)); /* c1 */ - tmp15 = MULTIPLY(tmp1 + tmp3, - FIX(0.666655658)) + /* -c11 */ - MULTIPLY(tmp4 + tmp6, - FIX(1.247225013)); /* -c5 */ - tmp16 = MULTIPLY(tmp2 + tmp3, - FIX(1.353318001)) + /* -c3 */ - MULTIPLY(tmp5 - tmp4, FIX(0.410524528)); /* c13 */ - tmp10 = tmp11 + tmp12 + tmp13 - - MULTIPLY(tmp0, FIX(2.286341144)) + /* c7+c5+c3-c1 */ - MULTIPLY(tmp7, FIX(0.779653625)); /* c15+c13-c11+c9 */ - tmp11 += tmp14 + tmp15 + MULTIPLY(tmp1, FIX(0.071888074)) /* c9-c3-c15+c11 */ - - MULTIPLY(tmp6, FIX(1.663905119)); /* c7+c13+c1-c5 */ - tmp12 += tmp14 + tmp16 - MULTIPLY(tmp2, FIX(1.125726048)) /* c7+c5+c15-c3 */ - + MULTIPLY(tmp5, FIX(1.227391138)); /* c9-c11+c1-c13 */ - tmp13 += tmp15 + tmp16 + MULTIPLY(tmp3, FIX(1.065388962)) /* c15+c3+c11-c7 */ - + MULTIPLY(tmp4, FIX(2.167985692)); /* c1+c13+c5-c9 */ - - dataptr[DCTSIZE*1] = (DCTELEM) DESCALE(tmp10, CONST_BITS+PASS1_BITS+1); - dataptr[DCTSIZE*3] = (DCTELEM) DESCALE(tmp11, CONST_BITS+PASS1_BITS+1); - dataptr[DCTSIZE*5] = (DCTELEM) DESCALE(tmp12, CONST_BITS+PASS1_BITS+1); - dataptr[DCTSIZE*7] = (DCTELEM) DESCALE(tmp13, CONST_BITS+PASS1_BITS+1); - - dataptr++; /* advance pointer to next column */ - wsptr++; /* advance pointer to next column */ - } -} - - -/* - * Perform the forward DCT on a 7x14 sample block. - * - * 7-point FDCT in pass 1 (rows), 14-point in pass 2 (columns). - */ - -GLOBAL(void) -jpeg_fdct_7x14 (DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col) -{ - INT32 tmp0, tmp1, tmp2, tmp3, tmp4, tmp5, tmp6; - INT32 tmp10, tmp11, tmp12, tmp13, tmp14, tmp15, tmp16; - INT32 z1, z2, z3; - DCTELEM workspace[8*6]; - DCTELEM *dataptr; - DCTELEM *wsptr; - JSAMPROW elemptr; - int ctr; - SHIFT_TEMPS - - /* Pre-zero output coefficient block. */ - MEMZERO(data, SIZEOF(DCTELEM) * DCTSIZE2); - - /* Pass 1: process rows. */ - /* Note results are scaled up by sqrt(8) compared to a true DCT; */ - /* furthermore, we scale the results by 2**PASS1_BITS. */ - /* 7-point FDCT kernel, cK represents sqrt(2) * cos(K*pi/14). */ - - dataptr = data; - ctr = 0; - for (;;) { - elemptr = sample_data[ctr] + start_col; - - /* Even part */ - - tmp0 = GETJSAMPLE(elemptr[0]) + GETJSAMPLE(elemptr[6]); - tmp1 = GETJSAMPLE(elemptr[1]) + GETJSAMPLE(elemptr[5]); - tmp2 = GETJSAMPLE(elemptr[2]) + GETJSAMPLE(elemptr[4]); - tmp3 = GETJSAMPLE(elemptr[3]); - - tmp10 = GETJSAMPLE(elemptr[0]) - GETJSAMPLE(elemptr[6]); - tmp11 = GETJSAMPLE(elemptr[1]) - GETJSAMPLE(elemptr[5]); - tmp12 = GETJSAMPLE(elemptr[2]) - GETJSAMPLE(elemptr[4]); - - z1 = tmp0 + tmp2; - /* Apply unsigned->signed conversion */ - dataptr[0] = (DCTELEM) - ((z1 + tmp1 + tmp3 - 7 * CENTERJSAMPLE) << PASS1_BITS); - tmp3 += tmp3; - z1 -= tmp3; - z1 -= tmp3; - z1 = MULTIPLY(z1, FIX(0.353553391)); /* (c2+c6-c4)/2 */ - z2 = MULTIPLY(tmp0 - tmp2, FIX(0.920609002)); /* (c2+c4-c6)/2 */ - z3 = MULTIPLY(tmp1 - tmp2, FIX(0.314692123)); /* c6 */ - dataptr[2] = (DCTELEM) DESCALE(z1 + z2 + z3, CONST_BITS-PASS1_BITS); - z1 -= z2; - z2 = MULTIPLY(tmp0 - tmp1, FIX(0.881747734)); /* c4 */ - dataptr[4] = (DCTELEM) - DESCALE(z2 + z3 - MULTIPLY(tmp1 - tmp3, FIX(0.707106781)), /* c2+c6-c4 */ - CONST_BITS-PASS1_BITS); - dataptr[6] = (DCTELEM) DESCALE(z1 + z2, CONST_BITS-PASS1_BITS); - - /* Odd part */ - - tmp1 = MULTIPLY(tmp10 + tmp11, FIX(0.935414347)); /* (c3+c1-c5)/2 */ - tmp2 = MULTIPLY(tmp10 - tmp11, FIX(0.170262339)); /* (c3+c5-c1)/2 */ - tmp0 = tmp1 - tmp2; - tmp1 += tmp2; - tmp2 = MULTIPLY(tmp11 + tmp12, - FIX(1.378756276)); /* -c1 */ - tmp1 += tmp2; - tmp3 = MULTIPLY(tmp10 + tmp12, FIX(0.613604268)); /* c5 */ - tmp0 += tmp3; - tmp2 += tmp3 + MULTIPLY(tmp12, FIX(1.870828693)); /* c3+c1-c5 */ - - dataptr[1] = (DCTELEM) DESCALE(tmp0, CONST_BITS-PASS1_BITS); - dataptr[3] = (DCTELEM) DESCALE(tmp1, CONST_BITS-PASS1_BITS); - dataptr[5] = (DCTELEM) DESCALE(tmp2, CONST_BITS-PASS1_BITS); - - ctr++; - - if (ctr != DCTSIZE) { - if (ctr == 14) - break; /* Done. */ - dataptr += DCTSIZE; /* advance pointer to next row */ - } else - dataptr = workspace; /* switch pointer to extended workspace */ - } - - /* Pass 2: process columns. - * We remove the PASS1_BITS scaling, but leave the results scaled up - * by an overall factor of 8. - * We must also scale the output by (8/7)*(8/14) = 32/49, which we - * fold into the constant multipliers: - * 14-point FDCT kernel, cK represents sqrt(2) * cos(K*pi/28) * 32/49. - */ - - dataptr = data; - wsptr = workspace; - for (ctr = 0; ctr < 7; ctr++) { - /* Even part */ - - tmp0 = dataptr[DCTSIZE*0] + wsptr[DCTSIZE*5]; - tmp1 = dataptr[DCTSIZE*1] + wsptr[DCTSIZE*4]; - tmp2 = dataptr[DCTSIZE*2] + wsptr[DCTSIZE*3]; - tmp13 = dataptr[DCTSIZE*3] + wsptr[DCTSIZE*2]; - tmp4 = dataptr[DCTSIZE*4] + wsptr[DCTSIZE*1]; - tmp5 = dataptr[DCTSIZE*5] + wsptr[DCTSIZE*0]; - tmp6 = dataptr[DCTSIZE*6] + dataptr[DCTSIZE*7]; - - tmp10 = tmp0 + tmp6; - tmp14 = tmp0 - tmp6; - tmp11 = tmp1 + tmp5; - tmp15 = tmp1 - tmp5; - tmp12 = tmp2 + tmp4; - tmp16 = tmp2 - tmp4; - - tmp0 = dataptr[DCTSIZE*0] - wsptr[DCTSIZE*5]; - tmp1 = dataptr[DCTSIZE*1] - wsptr[DCTSIZE*4]; - tmp2 = dataptr[DCTSIZE*2] - wsptr[DCTSIZE*3]; - tmp3 = dataptr[DCTSIZE*3] - wsptr[DCTSIZE*2]; - tmp4 = dataptr[DCTSIZE*4] - wsptr[DCTSIZE*1]; - tmp5 = dataptr[DCTSIZE*5] - wsptr[DCTSIZE*0]; - tmp6 = dataptr[DCTSIZE*6] - dataptr[DCTSIZE*7]; - - dataptr[DCTSIZE*0] = (DCTELEM) - DESCALE(MULTIPLY(tmp10 + tmp11 + tmp12 + tmp13, - FIX(0.653061224)), /* 32/49 */ - CONST_BITS+PASS1_BITS); - tmp13 += tmp13; - dataptr[DCTSIZE*4] = (DCTELEM) - DESCALE(MULTIPLY(tmp10 - tmp13, FIX(0.832106052)) + /* c4 */ - MULTIPLY(tmp11 - tmp13, FIX(0.205513223)) - /* c12 */ - MULTIPLY(tmp12 - tmp13, FIX(0.575835255)), /* c8 */ - CONST_BITS+PASS1_BITS); - - tmp10 = MULTIPLY(tmp14 + tmp15, FIX(0.722074570)); /* c6 */ - - dataptr[DCTSIZE*2] = (DCTELEM) - DESCALE(tmp10 + MULTIPLY(tmp14, FIX(0.178337691)) /* c2-c6 */ - + MULTIPLY(tmp16, FIX(0.400721155)), /* c10 */ - CONST_BITS+PASS1_BITS); - dataptr[DCTSIZE*6] = (DCTELEM) - DESCALE(tmp10 - MULTIPLY(tmp15, FIX(1.122795725)) /* c6+c10 */ - - MULTIPLY(tmp16, FIX(0.900412262)), /* c2 */ - CONST_BITS+PASS1_BITS); - - /* Odd part */ - - tmp10 = tmp1 + tmp2; - tmp11 = tmp5 - tmp4; - dataptr[DCTSIZE*7] = (DCTELEM) - DESCALE(MULTIPLY(tmp0 - tmp10 + tmp3 - tmp11 - tmp6, - FIX(0.653061224)), /* 32/49 */ - CONST_BITS+PASS1_BITS); - tmp3 = MULTIPLY(tmp3 , FIX(0.653061224)); /* 32/49 */ - tmp10 = MULTIPLY(tmp10, - FIX(0.103406812)); /* -c13 */ - tmp11 = MULTIPLY(tmp11, FIX(0.917760839)); /* c1 */ - tmp10 += tmp11 - tmp3; - tmp11 = MULTIPLY(tmp0 + tmp2, FIX(0.782007410)) + /* c5 */ - MULTIPLY(tmp4 + tmp6, FIX(0.491367823)); /* c9 */ - dataptr[DCTSIZE*5] = (DCTELEM) - DESCALE(tmp10 + tmp11 - MULTIPLY(tmp2, FIX(1.550341076)) /* c3+c5-c13 */ - + MULTIPLY(tmp4, FIX(0.731428202)), /* c1+c11-c9 */ - CONST_BITS+PASS1_BITS); - tmp12 = MULTIPLY(tmp0 + tmp1, FIX(0.871740478)) + /* c3 */ - MULTIPLY(tmp5 - tmp6, FIX(0.305035186)); /* c11 */ - dataptr[DCTSIZE*3] = (DCTELEM) - DESCALE(tmp10 + tmp12 - MULTIPLY(tmp1, FIX(0.276965844)) /* c3-c9-c13 */ - - MULTIPLY(tmp5, FIX(2.004803435)), /* c1+c5+c11 */ - CONST_BITS+PASS1_BITS); - dataptr[DCTSIZE*1] = (DCTELEM) - DESCALE(tmp11 + tmp12 + tmp3 - - MULTIPLY(tmp0, FIX(0.735987049)) /* c3+c5-c1 */ - - MULTIPLY(tmp6, FIX(0.082925825)), /* c9-c11-c13 */ - CONST_BITS+PASS1_BITS); - - dataptr++; /* advance pointer to next column */ - wsptr++; /* advance pointer to next column */ - } -} - - -/* - * Perform the forward DCT on a 6x12 sample block. - * - * 6-point FDCT in pass 1 (rows), 12-point in pass 2 (columns). - */ - -GLOBAL(void) -jpeg_fdct_6x12 (DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col) -{ - INT32 tmp0, tmp1, tmp2, tmp3, tmp4, tmp5; - INT32 tmp10, tmp11, tmp12, tmp13, tmp14, tmp15; - DCTELEM workspace[8*4]; - DCTELEM *dataptr; - DCTELEM *wsptr; - JSAMPROW elemptr; - int ctr; - SHIFT_TEMPS - - /* Pre-zero output coefficient block. */ - MEMZERO(data, SIZEOF(DCTELEM) * DCTSIZE2); - - /* Pass 1: process rows. */ - /* Note results are scaled up by sqrt(8) compared to a true DCT; */ - /* furthermore, we scale the results by 2**PASS1_BITS. */ - /* 6-point FDCT kernel, cK represents sqrt(2) * cos(K*pi/12). */ - - dataptr = data; - ctr = 0; - for (;;) { - elemptr = sample_data[ctr] + start_col; - - /* Even part */ - - tmp0 = GETJSAMPLE(elemptr[0]) + GETJSAMPLE(elemptr[5]); - tmp11 = GETJSAMPLE(elemptr[1]) + GETJSAMPLE(elemptr[4]); - tmp2 = GETJSAMPLE(elemptr[2]) + GETJSAMPLE(elemptr[3]); - - tmp10 = tmp0 + tmp2; - tmp12 = tmp0 - tmp2; - - tmp0 = GETJSAMPLE(elemptr[0]) - GETJSAMPLE(elemptr[5]); - tmp1 = GETJSAMPLE(elemptr[1]) - GETJSAMPLE(elemptr[4]); - tmp2 = GETJSAMPLE(elemptr[2]) - GETJSAMPLE(elemptr[3]); - - /* Apply unsigned->signed conversion */ - dataptr[0] = (DCTELEM) - ((tmp10 + tmp11 - 6 * CENTERJSAMPLE) << PASS1_BITS); - dataptr[2] = (DCTELEM) - DESCALE(MULTIPLY(tmp12, FIX(1.224744871)), /* c2 */ - CONST_BITS-PASS1_BITS); - dataptr[4] = (DCTELEM) - DESCALE(MULTIPLY(tmp10 - tmp11 - tmp11, FIX(0.707106781)), /* c4 */ - CONST_BITS-PASS1_BITS); - - /* Odd part */ - - tmp10 = DESCALE(MULTIPLY(tmp0 + tmp2, FIX(0.366025404)), /* c5 */ - CONST_BITS-PASS1_BITS); - - dataptr[1] = (DCTELEM) (tmp10 + ((tmp0 + tmp1) << PASS1_BITS)); - dataptr[3] = (DCTELEM) ((tmp0 - tmp1 - tmp2) << PASS1_BITS); - dataptr[5] = (DCTELEM) (tmp10 + ((tmp2 - tmp1) << PASS1_BITS)); - - ctr++; - - if (ctr != DCTSIZE) { - if (ctr == 12) - break; /* Done. */ - dataptr += DCTSIZE; /* advance pointer to next row */ - } else - dataptr = workspace; /* switch pointer to extended workspace */ - } - - /* Pass 2: process columns. - * We remove the PASS1_BITS scaling, but leave the results scaled up - * by an overall factor of 8. - * We must also scale the output by (8/6)*(8/12) = 8/9, which we - * fold into the constant multipliers: - * 12-point FDCT kernel, cK represents sqrt(2) * cos(K*pi/24) * 8/9. - */ - - dataptr = data; - wsptr = workspace; - for (ctr = 0; ctr < 6; ctr++) { - /* Even part */ - - tmp0 = dataptr[DCTSIZE*0] + wsptr[DCTSIZE*3]; - tmp1 = dataptr[DCTSIZE*1] + wsptr[DCTSIZE*2]; - tmp2 = dataptr[DCTSIZE*2] + wsptr[DCTSIZE*1]; - tmp3 = dataptr[DCTSIZE*3] + wsptr[DCTSIZE*0]; - tmp4 = dataptr[DCTSIZE*4] + dataptr[DCTSIZE*7]; - tmp5 = dataptr[DCTSIZE*5] + dataptr[DCTSIZE*6]; - - tmp10 = tmp0 + tmp5; - tmp13 = tmp0 - tmp5; - tmp11 = tmp1 + tmp4; - tmp14 = tmp1 - tmp4; - tmp12 = tmp2 + tmp3; - tmp15 = tmp2 - tmp3; - - tmp0 = dataptr[DCTSIZE*0] - wsptr[DCTSIZE*3]; - tmp1 = dataptr[DCTSIZE*1] - wsptr[DCTSIZE*2]; - tmp2 = dataptr[DCTSIZE*2] - wsptr[DCTSIZE*1]; - tmp3 = dataptr[DCTSIZE*3] - wsptr[DCTSIZE*0]; - tmp4 = dataptr[DCTSIZE*4] - dataptr[DCTSIZE*7]; - tmp5 = dataptr[DCTSIZE*5] - dataptr[DCTSIZE*6]; - - dataptr[DCTSIZE*0] = (DCTELEM) - DESCALE(MULTIPLY(tmp10 + tmp11 + tmp12, FIX(0.888888889)), /* 8/9 */ - CONST_BITS+PASS1_BITS); - dataptr[DCTSIZE*6] = (DCTELEM) - DESCALE(MULTIPLY(tmp13 - tmp14 - tmp15, FIX(0.888888889)), /* 8/9 */ - CONST_BITS+PASS1_BITS); - dataptr[DCTSIZE*4] = (DCTELEM) - DESCALE(MULTIPLY(tmp10 - tmp12, FIX(1.088662108)), /* c4 */ - CONST_BITS+PASS1_BITS); - dataptr[DCTSIZE*2] = (DCTELEM) - DESCALE(MULTIPLY(tmp14 - tmp15, FIX(0.888888889)) + /* 8/9 */ - MULTIPLY(tmp13 + tmp15, FIX(1.214244803)), /* c2 */ - CONST_BITS+PASS1_BITS); - - /* Odd part */ - - tmp10 = MULTIPLY(tmp1 + tmp4, FIX(0.481063200)); /* c9 */ - tmp14 = tmp10 + MULTIPLY(tmp1, FIX(0.680326102)); /* c3-c9 */ - tmp15 = tmp10 - MULTIPLY(tmp4, FIX(1.642452502)); /* c3+c9 */ - tmp12 = MULTIPLY(tmp0 + tmp2, FIX(0.997307603)); /* c5 */ - tmp13 = MULTIPLY(tmp0 + tmp3, FIX(0.765261039)); /* c7 */ - tmp10 = tmp12 + tmp13 + tmp14 - MULTIPLY(tmp0, FIX(0.516244403)) /* c5+c7-c1 */ - + MULTIPLY(tmp5, FIX(0.164081699)); /* c11 */ - tmp11 = MULTIPLY(tmp2 + tmp3, - FIX(0.164081699)); /* -c11 */ - tmp12 += tmp11 - tmp15 - MULTIPLY(tmp2, FIX(2.079550144)) /* c1+c5-c11 */ - + MULTIPLY(tmp5, FIX(0.765261039)); /* c7 */ - tmp13 += tmp11 - tmp14 + MULTIPLY(tmp3, FIX(0.645144899)) /* c1+c11-c7 */ - - MULTIPLY(tmp5, FIX(0.997307603)); /* c5 */ - tmp11 = tmp15 + MULTIPLY(tmp0 - tmp3, FIX(1.161389302)) /* c3 */ - - MULTIPLY(tmp2 + tmp5, FIX(0.481063200)); /* c9 */ - - dataptr[DCTSIZE*1] = (DCTELEM) DESCALE(tmp10, CONST_BITS+PASS1_BITS); - dataptr[DCTSIZE*3] = (DCTELEM) DESCALE(tmp11, CONST_BITS+PASS1_BITS); - dataptr[DCTSIZE*5] = (DCTELEM) DESCALE(tmp12, CONST_BITS+PASS1_BITS); - dataptr[DCTSIZE*7] = (DCTELEM) DESCALE(tmp13, CONST_BITS+PASS1_BITS); - - dataptr++; /* advance pointer to next column */ - wsptr++; /* advance pointer to next column */ - } -} - - -/* - * Perform the forward DCT on a 5x10 sample block. - * - * 5-point FDCT in pass 1 (rows), 10-point in pass 2 (columns). - */ - -GLOBAL(void) -jpeg_fdct_5x10 (DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col) -{ - INT32 tmp0, tmp1, tmp2, tmp3, tmp4; - INT32 tmp10, tmp11, tmp12, tmp13, tmp14; - DCTELEM workspace[8*2]; - DCTELEM *dataptr; - DCTELEM *wsptr; - JSAMPROW elemptr; - int ctr; - SHIFT_TEMPS - - /* Pre-zero output coefficient block. */ - MEMZERO(data, SIZEOF(DCTELEM) * DCTSIZE2); - - /* Pass 1: process rows. */ - /* Note results are scaled up by sqrt(8) compared to a true DCT; */ - /* furthermore, we scale the results by 2**PASS1_BITS. */ - /* 5-point FDCT kernel, cK represents sqrt(2) * cos(K*pi/10). */ - - dataptr = data; - ctr = 0; - for (;;) { - elemptr = sample_data[ctr] + start_col; - - /* Even part */ - - tmp0 = GETJSAMPLE(elemptr[0]) + GETJSAMPLE(elemptr[4]); - tmp1 = GETJSAMPLE(elemptr[1]) + GETJSAMPLE(elemptr[3]); - tmp2 = GETJSAMPLE(elemptr[2]); - - tmp10 = tmp0 + tmp1; - tmp11 = tmp0 - tmp1; - - tmp0 = GETJSAMPLE(elemptr[0]) - GETJSAMPLE(elemptr[4]); - tmp1 = GETJSAMPLE(elemptr[1]) - GETJSAMPLE(elemptr[3]); - - /* Apply unsigned->signed conversion */ - dataptr[0] = (DCTELEM) - ((tmp10 + tmp2 - 5 * CENTERJSAMPLE) << PASS1_BITS); - tmp11 = MULTIPLY(tmp11, FIX(0.790569415)); /* (c2+c4)/2 */ - tmp10 -= tmp2 << 2; - tmp10 = MULTIPLY(tmp10, FIX(0.353553391)); /* (c2-c4)/2 */ - dataptr[2] = (DCTELEM) DESCALE(tmp11 + tmp10, CONST_BITS-PASS1_BITS); - dataptr[4] = (DCTELEM) DESCALE(tmp11 - tmp10, CONST_BITS-PASS1_BITS); - - /* Odd part */ - - tmp10 = MULTIPLY(tmp0 + tmp1, FIX(0.831253876)); /* c3 */ - - dataptr[1] = (DCTELEM) - DESCALE(tmp10 + MULTIPLY(tmp0, FIX(0.513743148)), /* c1-c3 */ - CONST_BITS-PASS1_BITS); - dataptr[3] = (DCTELEM) - DESCALE(tmp10 - MULTIPLY(tmp1, FIX(2.176250899)), /* c1+c3 */ - CONST_BITS-PASS1_BITS); - - ctr++; - - if (ctr != DCTSIZE) { - if (ctr == 10) - break; /* Done. */ - dataptr += DCTSIZE; /* advance pointer to next row */ - } else - dataptr = workspace; /* switch pointer to extended workspace */ - } - - /* Pass 2: process columns. - * We remove the PASS1_BITS scaling, but leave the results scaled up - * by an overall factor of 8. - * We must also scale the output by (8/5)*(8/10) = 32/25, which we - * fold into the constant multipliers: - * 10-point FDCT kernel, cK represents sqrt(2) * cos(K*pi/20) * 32/25. - */ - - dataptr = data; - wsptr = workspace; - for (ctr = 0; ctr < 5; ctr++) { - /* Even part */ - - tmp0 = dataptr[DCTSIZE*0] + wsptr[DCTSIZE*1]; - tmp1 = dataptr[DCTSIZE*1] + wsptr[DCTSIZE*0]; - tmp12 = dataptr[DCTSIZE*2] + dataptr[DCTSIZE*7]; - tmp3 = dataptr[DCTSIZE*3] + dataptr[DCTSIZE*6]; - tmp4 = dataptr[DCTSIZE*4] + dataptr[DCTSIZE*5]; - - tmp10 = tmp0 + tmp4; - tmp13 = tmp0 - tmp4; - tmp11 = tmp1 + tmp3; - tmp14 = tmp1 - tmp3; - - tmp0 = dataptr[DCTSIZE*0] - wsptr[DCTSIZE*1]; - tmp1 = dataptr[DCTSIZE*1] - wsptr[DCTSIZE*0]; - tmp2 = dataptr[DCTSIZE*2] - dataptr[DCTSIZE*7]; - tmp3 = dataptr[DCTSIZE*3] - dataptr[DCTSIZE*6]; - tmp4 = dataptr[DCTSIZE*4] - dataptr[DCTSIZE*5]; - - dataptr[DCTSIZE*0] = (DCTELEM) - DESCALE(MULTIPLY(tmp10 + tmp11 + tmp12, FIX(1.28)), /* 32/25 */ - CONST_BITS+PASS1_BITS); - tmp12 += tmp12; - dataptr[DCTSIZE*4] = (DCTELEM) - DESCALE(MULTIPLY(tmp10 - tmp12, FIX(1.464477191)) - /* c4 */ - MULTIPLY(tmp11 - tmp12, FIX(0.559380511)), /* c8 */ - CONST_BITS+PASS1_BITS); - tmp10 = MULTIPLY(tmp13 + tmp14, FIX(1.064004961)); /* c6 */ - dataptr[DCTSIZE*2] = (DCTELEM) - DESCALE(tmp10 + MULTIPLY(tmp13, FIX(0.657591230)), /* c2-c6 */ - CONST_BITS+PASS1_BITS); - dataptr[DCTSIZE*6] = (DCTELEM) - DESCALE(tmp10 - MULTIPLY(tmp14, FIX(2.785601151)), /* c2+c6 */ - CONST_BITS+PASS1_BITS); - - /* Odd part */ - - tmp10 = tmp0 + tmp4; - tmp11 = tmp1 - tmp3; - dataptr[DCTSIZE*5] = (DCTELEM) - DESCALE(MULTIPLY(tmp10 - tmp11 - tmp2, FIX(1.28)), /* 32/25 */ - CONST_BITS+PASS1_BITS); - tmp2 = MULTIPLY(tmp2, FIX(1.28)); /* 32/25 */ - dataptr[DCTSIZE*1] = (DCTELEM) - DESCALE(MULTIPLY(tmp0, FIX(1.787906876)) + /* c1 */ - MULTIPLY(tmp1, FIX(1.612894094)) + tmp2 + /* c3 */ - MULTIPLY(tmp3, FIX(0.821810588)) + /* c7 */ - MULTIPLY(tmp4, FIX(0.283176630)), /* c9 */ - CONST_BITS+PASS1_BITS); - tmp12 = MULTIPLY(tmp0 - tmp4, FIX(1.217352341)) - /* (c3+c7)/2 */ - MULTIPLY(tmp1 + tmp3, FIX(0.752365123)); /* (c1-c9)/2 */ - tmp13 = MULTIPLY(tmp10 + tmp11, FIX(0.395541753)) + /* (c3-c7)/2 */ - MULTIPLY(tmp11, FIX(0.64)) - tmp2; /* 16/25 */ - dataptr[DCTSIZE*3] = (DCTELEM) DESCALE(tmp12 + tmp13, CONST_BITS+PASS1_BITS); - dataptr[DCTSIZE*7] = (DCTELEM) DESCALE(tmp12 - tmp13, CONST_BITS+PASS1_BITS); - - dataptr++; /* advance pointer to next column */ - wsptr++; /* advance pointer to next column */ - } -} - - -/* - * Perform the forward DCT on a 4x8 sample block. - * - * 4-point FDCT in pass 1 (rows), 8-point in pass 2 (columns). - */ - -GLOBAL(void) -jpeg_fdct_4x8 (DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col) -{ - INT32 tmp0, tmp1, tmp2, tmp3; - INT32 tmp10, tmp11, tmp12, tmp13; - INT32 z1; - DCTELEM *dataptr; - JSAMPROW elemptr; - int ctr; - SHIFT_TEMPS - - /* Pre-zero output coefficient block. */ - MEMZERO(data, SIZEOF(DCTELEM) * DCTSIZE2); - - /* Pass 1: process rows. */ - /* Note results are scaled up by sqrt(8) compared to a true DCT; */ - /* furthermore, we scale the results by 2**PASS1_BITS. */ - /* We must also scale the output by 8/4 = 2, which we add here. */ - /* 4-point FDCT kernel, cK represents sqrt(2) * cos(K*pi/16). */ - - dataptr = data; - for (ctr = 0; ctr < DCTSIZE; ctr++) { - elemptr = sample_data[ctr] + start_col; - - /* Even part */ - - tmp0 = GETJSAMPLE(elemptr[0]) + GETJSAMPLE(elemptr[3]); - tmp1 = GETJSAMPLE(elemptr[1]) + GETJSAMPLE(elemptr[2]); - - tmp10 = GETJSAMPLE(elemptr[0]) - GETJSAMPLE(elemptr[3]); - tmp11 = GETJSAMPLE(elemptr[1]) - GETJSAMPLE(elemptr[2]); - - /* Apply unsigned->signed conversion */ - dataptr[0] = (DCTELEM) - ((tmp0 + tmp1 - 4 * CENTERJSAMPLE) << (PASS1_BITS+1)); - dataptr[2] = (DCTELEM) ((tmp0 - tmp1) << (PASS1_BITS+1)); - - /* Odd part */ - - tmp0 = MULTIPLY(tmp10 + tmp11, FIX_0_541196100); /* c6 */ - /* Add fudge factor here for final descale. */ - tmp0 += ONE << (CONST_BITS-PASS1_BITS-2); - - dataptr[1] = (DCTELEM) - RIGHT_SHIFT(tmp0 + MULTIPLY(tmp10, FIX_0_765366865), /* c2-c6 */ - CONST_BITS-PASS1_BITS-1); - dataptr[3] = (DCTELEM) - RIGHT_SHIFT(tmp0 - MULTIPLY(tmp11, FIX_1_847759065), /* c2+c6 */ - CONST_BITS-PASS1_BITS-1); - - dataptr += DCTSIZE; /* advance pointer to next row */ - } - - /* Pass 2: process columns. - * We remove the PASS1_BITS scaling, but leave the results scaled up - * by an overall factor of 8. - */ - - dataptr = data; - for (ctr = 0; ctr < 4; ctr++) { - /* Even part per LL&M figure 1 --- note that published figure is faulty; - * rotator "sqrt(2)*c1" should be "sqrt(2)*c6". - */ - - tmp0 = dataptr[DCTSIZE*0] + dataptr[DCTSIZE*7]; - tmp1 = dataptr[DCTSIZE*1] + dataptr[DCTSIZE*6]; - tmp2 = dataptr[DCTSIZE*2] + dataptr[DCTSIZE*5]; - tmp3 = dataptr[DCTSIZE*3] + dataptr[DCTSIZE*4]; - - /* Add fudge factor here for final descale. */ - tmp10 = tmp0 + tmp3 + (ONE << (PASS1_BITS-1)); - tmp12 = tmp0 - tmp3; - tmp11 = tmp1 + tmp2; - tmp13 = tmp1 - tmp2; - - tmp0 = dataptr[DCTSIZE*0] - dataptr[DCTSIZE*7]; - tmp1 = dataptr[DCTSIZE*1] - dataptr[DCTSIZE*6]; - tmp2 = dataptr[DCTSIZE*2] - dataptr[DCTSIZE*5]; - tmp3 = dataptr[DCTSIZE*3] - dataptr[DCTSIZE*4]; - - dataptr[DCTSIZE*0] = (DCTELEM) RIGHT_SHIFT(tmp10 + tmp11, PASS1_BITS); - dataptr[DCTSIZE*4] = (DCTELEM) RIGHT_SHIFT(tmp10 - tmp11, PASS1_BITS); - - z1 = MULTIPLY(tmp12 + tmp13, FIX_0_541196100); - /* Add fudge factor here for final descale. */ - z1 += ONE << (CONST_BITS+PASS1_BITS-1); - dataptr[DCTSIZE*2] = (DCTELEM) - RIGHT_SHIFT(z1 + MULTIPLY(tmp12, FIX_0_765366865), CONST_BITS+PASS1_BITS); - dataptr[DCTSIZE*6] = (DCTELEM) - RIGHT_SHIFT(z1 - MULTIPLY(tmp13, FIX_1_847759065), CONST_BITS+PASS1_BITS); - - /* Odd part per figure 8 --- note paper omits factor of sqrt(2). - * 8-point FDCT kernel, cK represents sqrt(2) * cos(K*pi/16). - * i0..i3 in the paper are tmp0..tmp3 here. - */ - - tmp10 = tmp0 + tmp3; - tmp11 = tmp1 + tmp2; - tmp12 = tmp0 + tmp2; - tmp13 = tmp1 + tmp3; - z1 = MULTIPLY(tmp12 + tmp13, FIX_1_175875602); /* c3 */ - /* Add fudge factor here for final descale. */ - z1 += ONE << (CONST_BITS+PASS1_BITS-1); - - tmp0 = MULTIPLY(tmp0, FIX_1_501321110); /* c1+c3-c5-c7 */ - tmp1 = MULTIPLY(tmp1, FIX_3_072711026); /* c1+c3+c5-c7 */ - tmp2 = MULTIPLY(tmp2, FIX_2_053119869); /* c1+c3-c5+c7 */ - tmp3 = MULTIPLY(tmp3, FIX_0_298631336); /* -c1+c3+c5-c7 */ - tmp10 = MULTIPLY(tmp10, - FIX_0_899976223); /* c7-c3 */ - tmp11 = MULTIPLY(tmp11, - FIX_2_562915447); /* -c1-c3 */ - tmp12 = MULTIPLY(tmp12, - FIX_0_390180644); /* c5-c3 */ - tmp13 = MULTIPLY(tmp13, - FIX_1_961570560); /* -c3-c5 */ - - tmp12 += z1; - tmp13 += z1; - - dataptr[DCTSIZE*1] = (DCTELEM) - RIGHT_SHIFT(tmp0 + tmp10 + tmp12, CONST_BITS+PASS1_BITS); - dataptr[DCTSIZE*3] = (DCTELEM) - RIGHT_SHIFT(tmp1 + tmp11 + tmp13, CONST_BITS+PASS1_BITS); - dataptr[DCTSIZE*5] = (DCTELEM) - RIGHT_SHIFT(tmp2 + tmp11 + tmp12, CONST_BITS+PASS1_BITS); - dataptr[DCTSIZE*7] = (DCTELEM) - RIGHT_SHIFT(tmp3 + tmp10 + tmp13, CONST_BITS+PASS1_BITS); - - dataptr++; /* advance pointer to next column */ - } -} - - -/* - * Perform the forward DCT on a 3x6 sample block. - * - * 3-point FDCT in pass 1 (rows), 6-point in pass 2 (columns). - */ - -GLOBAL(void) -jpeg_fdct_3x6 (DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col) -{ - INT32 tmp0, tmp1, tmp2; - INT32 tmp10, tmp11, tmp12; - DCTELEM *dataptr; - JSAMPROW elemptr; - int ctr; - SHIFT_TEMPS - - /* Pre-zero output coefficient block. */ - MEMZERO(data, SIZEOF(DCTELEM) * DCTSIZE2); - - /* Pass 1: process rows. */ - /* Note results are scaled up by sqrt(8) compared to a true DCT; */ - /* furthermore, we scale the results by 2**PASS1_BITS. */ - /* We scale the results further by 2 as part of output adaption */ - /* scaling for different DCT size. */ - /* 3-point FDCT kernel, cK represents sqrt(2) * cos(K*pi/6). */ - - dataptr = data; - for (ctr = 0; ctr < 6; ctr++) { - elemptr = sample_data[ctr] + start_col; - - /* Even part */ - - tmp0 = GETJSAMPLE(elemptr[0]) + GETJSAMPLE(elemptr[2]); - tmp1 = GETJSAMPLE(elemptr[1]); - - tmp2 = GETJSAMPLE(elemptr[0]) - GETJSAMPLE(elemptr[2]); - - /* Apply unsigned->signed conversion */ - dataptr[0] = (DCTELEM) - ((tmp0 + tmp1 - 3 * CENTERJSAMPLE) << (PASS1_BITS+1)); - dataptr[2] = (DCTELEM) - DESCALE(MULTIPLY(tmp0 - tmp1 - tmp1, FIX(0.707106781)), /* c2 */ - CONST_BITS-PASS1_BITS-1); - - /* Odd part */ - - dataptr[1] = (DCTELEM) - DESCALE(MULTIPLY(tmp2, FIX(1.224744871)), /* c1 */ - CONST_BITS-PASS1_BITS-1); - - dataptr += DCTSIZE; /* advance pointer to next row */ - } - - /* Pass 2: process columns. - * We remove the PASS1_BITS scaling, but leave the results scaled up - * by an overall factor of 8. - * We must also scale the output by (8/6)*(8/3) = 32/9, which we partially - * fold into the constant multipliers (other part was done in pass 1): - * 6-point FDCT kernel, cK represents sqrt(2) * cos(K*pi/12) * 16/9. - */ - - dataptr = data; - for (ctr = 0; ctr < 3; ctr++) { - /* Even part */ - - tmp0 = dataptr[DCTSIZE*0] + dataptr[DCTSIZE*5]; - tmp11 = dataptr[DCTSIZE*1] + dataptr[DCTSIZE*4]; - tmp2 = dataptr[DCTSIZE*2] + dataptr[DCTSIZE*3]; - - tmp10 = tmp0 + tmp2; - tmp12 = tmp0 - tmp2; - - tmp0 = dataptr[DCTSIZE*0] - dataptr[DCTSIZE*5]; - tmp1 = dataptr[DCTSIZE*1] - dataptr[DCTSIZE*4]; - tmp2 = dataptr[DCTSIZE*2] - dataptr[DCTSIZE*3]; - - dataptr[DCTSIZE*0] = (DCTELEM) - DESCALE(MULTIPLY(tmp10 + tmp11, FIX(1.777777778)), /* 16/9 */ - CONST_BITS+PASS1_BITS); - dataptr[DCTSIZE*2] = (DCTELEM) - DESCALE(MULTIPLY(tmp12, FIX(2.177324216)), /* c2 */ - CONST_BITS+PASS1_BITS); - dataptr[DCTSIZE*4] = (DCTELEM) - DESCALE(MULTIPLY(tmp10 - tmp11 - tmp11, FIX(1.257078722)), /* c4 */ - CONST_BITS+PASS1_BITS); - - /* Odd part */ - - tmp10 = MULTIPLY(tmp0 + tmp2, FIX(0.650711829)); /* c5 */ - - dataptr[DCTSIZE*1] = (DCTELEM) - DESCALE(tmp10 + MULTIPLY(tmp0 + tmp1, FIX(1.777777778)), /* 16/9 */ - CONST_BITS+PASS1_BITS); - dataptr[DCTSIZE*3] = (DCTELEM) - DESCALE(MULTIPLY(tmp0 - tmp1 - tmp2, FIX(1.777777778)), /* 16/9 */ - CONST_BITS+PASS1_BITS); - dataptr[DCTSIZE*5] = (DCTELEM) - DESCALE(tmp10 + MULTIPLY(tmp2 - tmp1, FIX(1.777777778)), /* 16/9 */ - CONST_BITS+PASS1_BITS); - - dataptr++; /* advance pointer to next column */ - } -} - - -/* - * Perform the forward DCT on a 2x4 sample block. - * - * 2-point FDCT in pass 1 (rows), 4-point in pass 2 (columns). - */ - -GLOBAL(void) -jpeg_fdct_2x4 (DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col) -{ - INT32 tmp0, tmp1; - INT32 tmp10, tmp11; - DCTELEM *dataptr; - JSAMPROW elemptr; - int ctr; - SHIFT_TEMPS - - /* Pre-zero output coefficient block. */ - MEMZERO(data, SIZEOF(DCTELEM) * DCTSIZE2); - - /* Pass 1: process rows. */ - /* Note results are scaled up by sqrt(8) compared to a true DCT. */ - /* We must also scale the output by (8/2)*(8/4) = 2**3, which we add here. */ - - dataptr = data; - for (ctr = 0; ctr < 4; ctr++) { - elemptr = sample_data[ctr] + start_col; - - /* Even part */ - - tmp0 = GETJSAMPLE(elemptr[0]); - tmp1 = GETJSAMPLE(elemptr[1]); - - /* Apply unsigned->signed conversion */ - dataptr[0] = (DCTELEM) ((tmp0 + tmp1 - 2 * CENTERJSAMPLE) << 3); - - /* Odd part */ - - dataptr[1] = (DCTELEM) ((tmp0 - tmp1) << 3); - - dataptr += DCTSIZE; /* advance pointer to next row */ - } - - /* Pass 2: process columns. - * We leave the results scaled up by an overall factor of 8. - * 4-point FDCT kernel, - * cK represents sqrt(2) * cos(K*pi/16) [refers to 8-point FDCT]. - */ - - dataptr = data; - for (ctr = 0; ctr < 2; ctr++) { - /* Even part */ - - tmp0 = dataptr[DCTSIZE*0] + dataptr[DCTSIZE*3]; - tmp1 = dataptr[DCTSIZE*1] + dataptr[DCTSIZE*2]; - - tmp10 = dataptr[DCTSIZE*0] - dataptr[DCTSIZE*3]; - tmp11 = dataptr[DCTSIZE*1] - dataptr[DCTSIZE*2]; - - dataptr[DCTSIZE*0] = (DCTELEM) (tmp0 + tmp1); - dataptr[DCTSIZE*2] = (DCTELEM) (tmp0 - tmp1); - - /* Odd part */ - - tmp0 = MULTIPLY(tmp10 + tmp11, FIX_0_541196100); /* c6 */ - /* Add fudge factor here for final descale. */ - tmp0 += ONE << (CONST_BITS-1); - - dataptr[DCTSIZE*1] = (DCTELEM) - RIGHT_SHIFT(tmp0 + MULTIPLY(tmp10, FIX_0_765366865), /* c2-c6 */ - CONST_BITS); - dataptr[DCTSIZE*3] = (DCTELEM) - RIGHT_SHIFT(tmp0 - MULTIPLY(tmp11, FIX_1_847759065), /* c2+c6 */ - CONST_BITS); - - dataptr++; /* advance pointer to next column */ - } -} - - -/* - * Perform the forward DCT on a 1x2 sample block. - * - * 1-point FDCT in pass 1 (rows), 2-point in pass 2 (columns). - */ - -GLOBAL(void) -jpeg_fdct_1x2 (DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col) -{ - INT32 tmp0, tmp1; - - /* Pre-zero output coefficient block. */ - MEMZERO(data, SIZEOF(DCTELEM) * DCTSIZE2); - - tmp0 = GETJSAMPLE(sample_data[0][start_col]); - tmp1 = GETJSAMPLE(sample_data[1][start_col]); - - /* We leave the results scaled up by an overall factor of 8. - * We must also scale the output by (8/1)*(8/2) = 2**5. - */ - - /* Even part */ - /* Apply unsigned->signed conversion */ - data[DCTSIZE*0] = (DCTELEM) ((tmp0 + tmp1 - 2 * CENTERJSAMPLE) << 5); - - /* Odd part */ - data[DCTSIZE*1] = (DCTELEM) ((tmp0 - tmp1) << 5); -} - -#endif /* DCT_SCALING_SUPPORTED */ -#endif /* DCT_ISLOW_SUPPORTED */ diff --git a/jpg/jidctflt.c b/jpg/jidctflt.c deleted file mode 100644 index 23ae9d3..0000000 --- a/jpg/jidctflt.c +++ /dev/null @@ -1,235 +0,0 @@ -/* - * jidctflt.c - * - * Copyright (C) 1994-1998, Thomas G. Lane. - * Modified 2010 by Guido Vollbeding. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file contains a floating-point implementation of the - * inverse DCT (Discrete Cosine Transform). In the IJG code, this routine - * must also perform dequantization of the input coefficients. - * - * This implementation should be more accurate than either of the integer - * IDCT implementations. However, it may not give the same results on all - * machines because of differences in roundoff behavior. Speed will depend - * on the hardware's floating point capacity. - * - * A 2-D IDCT can be done by 1-D IDCT on each column followed by 1-D IDCT - * on each row (or vice versa, but it's more convenient to emit a row at - * a time). Direct algorithms are also available, but they are much more - * complex and seem not to be any faster when reduced to code. - * - * This implementation is based on Arai, Agui, and Nakajima's algorithm for - * scaled DCT. Their original paper (Trans. IEICE E-71(11):1095) is in - * Japanese, but the algorithm is described in the Pennebaker & Mitchell - * JPEG textbook (see REFERENCES section in file README). The following code - * is based directly on figure 4-8 in P&M. - * While an 8-point DCT cannot be done in less than 11 multiplies, it is - * possible to arrange the computation so that many of the multiplies are - * simple scalings of the final outputs. These multiplies can then be - * folded into the multiplications or divisions by the JPEG quantization - * table entries. The AA&N method leaves only 5 multiplies and 29 adds - * to be done in the DCT itself. - * The primary disadvantage of this method is that with a fixed-point - * implementation, accuracy is lost due to imprecise representation of the - * scaled quantization values. However, that problem does not arise if - * we use floating point arithmetic. - */ - -#define JPEG_INTERNALS -#include "jinclude.h" -#include "jpeglib.h" -#include "jdct.h" /* Private declarations for DCT subsystem */ - -#ifdef DCT_FLOAT_SUPPORTED - - -/* - * This module is specialized to the case DCTSIZE = 8. - */ - -#if DCTSIZE != 8 - Sorry, this code only copes with 8x8 DCTs. /* deliberate syntax err */ -#endif - - -/* Dequantize a coefficient by multiplying it by the multiplier-table - * entry; produce a float result. - */ - -#define DEQUANTIZE(coef,quantval) (((FAST_FLOAT) (coef)) * (quantval)) - - -/* - * Perform dequantization and inverse DCT on one block of coefficients. - */ - -GLOBAL(void) -jpeg_idct_float (j_decompress_ptr cinfo, jpeg_component_info * compptr, - JCOEFPTR coef_block, - JSAMPARRAY output_buf, JDIMENSION output_col) -{ - FAST_FLOAT tmp0, tmp1, tmp2, tmp3, tmp4, tmp5, tmp6, tmp7; - FAST_FLOAT tmp10, tmp11, tmp12, tmp13; - FAST_FLOAT z5, z10, z11, z12, z13; - JCOEFPTR inptr; - FLOAT_MULT_TYPE * quantptr; - FAST_FLOAT * wsptr; - JSAMPROW outptr; - JSAMPLE *range_limit = cinfo->sample_range_limit; - int ctr; - FAST_FLOAT workspace[DCTSIZE2]; /* buffers data between passes */ - - /* Pass 1: process columns from input, store into work array. */ - - inptr = coef_block; - quantptr = (FLOAT_MULT_TYPE *) compptr->dct_table; - wsptr = workspace; - for (ctr = DCTSIZE; ctr > 0; ctr--) { - /* Due to quantization, we will usually find that many of the input - * coefficients are zero, especially the AC terms. We can exploit this - * by short-circuiting the IDCT calculation for any column in which all - * the AC terms are zero. In that case each output is equal to the - * DC coefficient (with scale factor as needed). - * With typical images and quantization tables, half or more of the - * column DCT calculations can be simplified this way. - */ - - if (inptr[DCTSIZE*1] == 0 && inptr[DCTSIZE*2] == 0 && - inptr[DCTSIZE*3] == 0 && inptr[DCTSIZE*4] == 0 && - inptr[DCTSIZE*5] == 0 && inptr[DCTSIZE*6] == 0 && - inptr[DCTSIZE*7] == 0) { - /* AC terms all zero */ - FAST_FLOAT dcval = DEQUANTIZE(inptr[DCTSIZE*0], quantptr[DCTSIZE*0]); - - wsptr[DCTSIZE*0] = dcval; - wsptr[DCTSIZE*1] = dcval; - wsptr[DCTSIZE*2] = dcval; - wsptr[DCTSIZE*3] = dcval; - wsptr[DCTSIZE*4] = dcval; - wsptr[DCTSIZE*5] = dcval; - wsptr[DCTSIZE*6] = dcval; - wsptr[DCTSIZE*7] = dcval; - - inptr++; /* advance pointers to next column */ - quantptr++; - wsptr++; - continue; - } - - /* Even part */ - - tmp0 = DEQUANTIZE(inptr[DCTSIZE*0], quantptr[DCTSIZE*0]); - tmp1 = DEQUANTIZE(inptr[DCTSIZE*2], quantptr[DCTSIZE*2]); - tmp2 = DEQUANTIZE(inptr[DCTSIZE*4], quantptr[DCTSIZE*4]); - tmp3 = DEQUANTIZE(inptr[DCTSIZE*6], quantptr[DCTSIZE*6]); - - tmp10 = tmp0 + tmp2; /* phase 3 */ - tmp11 = tmp0 - tmp2; - - tmp13 = tmp1 + tmp3; /* phases 5-3 */ - tmp12 = (tmp1 - tmp3) * ((FAST_FLOAT) 1.414213562) - tmp13; /* 2*c4 */ - - tmp0 = tmp10 + tmp13; /* phase 2 */ - tmp3 = tmp10 - tmp13; - tmp1 = tmp11 + tmp12; - tmp2 = tmp11 - tmp12; - - /* Odd part */ - - tmp4 = DEQUANTIZE(inptr[DCTSIZE*1], quantptr[DCTSIZE*1]); - tmp5 = DEQUANTIZE(inptr[DCTSIZE*3], quantptr[DCTSIZE*3]); - tmp6 = DEQUANTIZE(inptr[DCTSIZE*5], quantptr[DCTSIZE*5]); - tmp7 = DEQUANTIZE(inptr[DCTSIZE*7], quantptr[DCTSIZE*7]); - - z13 = tmp6 + tmp5; /* phase 6 */ - z10 = tmp6 - tmp5; - z11 = tmp4 + tmp7; - z12 = tmp4 - tmp7; - - tmp7 = z11 + z13; /* phase 5 */ - tmp11 = (z11 - z13) * ((FAST_FLOAT) 1.414213562); /* 2*c4 */ - - z5 = (z10 + z12) * ((FAST_FLOAT) 1.847759065); /* 2*c2 */ - tmp10 = z5 - z12 * ((FAST_FLOAT) 1.082392200); /* 2*(c2-c6) */ - tmp12 = z5 - z10 * ((FAST_FLOAT) 2.613125930); /* 2*(c2+c6) */ - - tmp6 = tmp12 - tmp7; /* phase 2 */ - tmp5 = tmp11 - tmp6; - tmp4 = tmp10 - tmp5; - - wsptr[DCTSIZE*0] = tmp0 + tmp7; - wsptr[DCTSIZE*7] = tmp0 - tmp7; - wsptr[DCTSIZE*1] = tmp1 + tmp6; - wsptr[DCTSIZE*6] = tmp1 - tmp6; - wsptr[DCTSIZE*2] = tmp2 + tmp5; - wsptr[DCTSIZE*5] = tmp2 - tmp5; - wsptr[DCTSIZE*3] = tmp3 + tmp4; - wsptr[DCTSIZE*4] = tmp3 - tmp4; - - inptr++; /* advance pointers to next column */ - quantptr++; - wsptr++; - } - - /* Pass 2: process rows from work array, store into output array. */ - - wsptr = workspace; - for (ctr = 0; ctr < DCTSIZE; ctr++) { - outptr = output_buf[ctr] + output_col; - /* Rows of zeroes can be exploited in the same way as we did with columns. - * However, the column calculation has created many nonzero AC terms, so - * the simplification applies less often (typically 5% to 10% of the time). - * And testing floats for zero is relatively expensive, so we don't bother. - */ - - /* Even part */ - - /* Apply signed->unsigned and prepare float->int conversion */ - z5 = wsptr[0] + ((FAST_FLOAT) CENTERJSAMPLE + (FAST_FLOAT) 0.5); - tmp10 = z5 + wsptr[4]; - tmp11 = z5 - wsptr[4]; - - tmp13 = wsptr[2] + wsptr[6]; - tmp12 = (wsptr[2] - wsptr[6]) * ((FAST_FLOAT) 1.414213562) - tmp13; - - tmp0 = tmp10 + tmp13; - tmp3 = tmp10 - tmp13; - tmp1 = tmp11 + tmp12; - tmp2 = tmp11 - tmp12; - - /* Odd part */ - - z13 = wsptr[5] + wsptr[3]; - z10 = wsptr[5] - wsptr[3]; - z11 = wsptr[1] + wsptr[7]; - z12 = wsptr[1] - wsptr[7]; - - tmp7 = z11 + z13; - tmp11 = (z11 - z13) * ((FAST_FLOAT) 1.414213562); - - z5 = (z10 + z12) * ((FAST_FLOAT) 1.847759065); /* 2*c2 */ - tmp10 = z5 - z12 * ((FAST_FLOAT) 1.082392200); /* 2*(c2-c6) */ - tmp12 = z5 - z10 * ((FAST_FLOAT) 2.613125930); /* 2*(c2+c6) */ - - tmp6 = tmp12 - tmp7; - tmp5 = tmp11 - tmp6; - tmp4 = tmp10 - tmp5; - - /* Final output stage: float->int conversion and range-limit */ - - outptr[0] = range_limit[((int) (tmp0 + tmp7)) & RANGE_MASK]; - outptr[7] = range_limit[((int) (tmp0 - tmp7)) & RANGE_MASK]; - outptr[1] = range_limit[((int) (tmp1 + tmp6)) & RANGE_MASK]; - outptr[6] = range_limit[((int) (tmp1 - tmp6)) & RANGE_MASK]; - outptr[2] = range_limit[((int) (tmp2 + tmp5)) & RANGE_MASK]; - outptr[5] = range_limit[((int) (tmp2 - tmp5)) & RANGE_MASK]; - outptr[3] = range_limit[((int) (tmp3 + tmp4)) & RANGE_MASK]; - outptr[4] = range_limit[((int) (tmp3 - tmp4)) & RANGE_MASK]; - - wsptr += DCTSIZE; /* advance pointer to next row */ - } -} - -#endif /* DCT_FLOAT_SUPPORTED */ diff --git a/jpg/jidctfst.c b/jpg/jidctfst.c deleted file mode 100644 index dba4216..0000000 --- a/jpg/jidctfst.c +++ /dev/null @@ -1,368 +0,0 @@ -/* - * jidctfst.c - * - * Copyright (C) 1994-1998, Thomas G. Lane. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file contains a fast, not so accurate integer implementation of the - * inverse DCT (Discrete Cosine Transform). In the IJG code, this routine - * must also perform dequantization of the input coefficients. - * - * A 2-D IDCT can be done by 1-D IDCT on each column followed by 1-D IDCT - * on each row (or vice versa, but it's more convenient to emit a row at - * a time). Direct algorithms are also available, but they are much more - * complex and seem not to be any faster when reduced to code. - * - * This implementation is based on Arai, Agui, and Nakajima's algorithm for - * scaled DCT. Their original paper (Trans. IEICE E-71(11):1095) is in - * Japanese, but the algorithm is described in the Pennebaker & Mitchell - * JPEG textbook (see REFERENCES section in file README). The following code - * is based directly on figure 4-8 in P&M. - * While an 8-point DCT cannot be done in less than 11 multiplies, it is - * possible to arrange the computation so that many of the multiplies are - * simple scalings of the final outputs. These multiplies can then be - * folded into the multiplications or divisions by the JPEG quantization - * table entries. The AA&N method leaves only 5 multiplies and 29 adds - * to be done in the DCT itself. - * The primary disadvantage of this method is that with fixed-point math, - * accuracy is lost due to imprecise representation of the scaled - * quantization values. The smaller the quantization table entry, the less - * precise the scaled value, so this implementation does worse with high- - * quality-setting files than with low-quality ones. - */ - -#define JPEG_INTERNALS -#include "jinclude.h" -#include "jpeglib.h" -#include "jdct.h" /* Private declarations for DCT subsystem */ - -#ifdef DCT_IFAST_SUPPORTED - - -/* - * This module is specialized to the case DCTSIZE = 8. - */ - -#if DCTSIZE != 8 - Sorry, this code only copes with 8x8 DCTs. /* deliberate syntax err */ -#endif - - -/* Scaling decisions are generally the same as in the LL&M algorithm; - * see jidctint.c for more details. However, we choose to descale - * (right shift) multiplication products as soon as they are formed, - * rather than carrying additional fractional bits into subsequent additions. - * This compromises accuracy slightly, but it lets us save a few shifts. - * More importantly, 16-bit arithmetic is then adequate (for 8-bit samples) - * everywhere except in the multiplications proper; this saves a good deal - * of work on 16-bit-int machines. - * - * The dequantized coefficients are not integers because the AA&N scaling - * factors have been incorporated. We represent them scaled up by PASS1_BITS, - * so that the first and second IDCT rounds have the same input scaling. - * For 8-bit JSAMPLEs, we choose IFAST_SCALE_BITS = PASS1_BITS so as to - * avoid a descaling shift; this compromises accuracy rather drastically - * for small quantization table entries, but it saves a lot of shifts. - * For 12-bit JSAMPLEs, there's no hope of using 16x16 multiplies anyway, - * so we use a much larger scaling factor to preserve accuracy. - * - * A final compromise is to represent the multiplicative constants to only - * 8 fractional bits, rather than 13. This saves some shifting work on some - * machines, and may also reduce the cost of multiplication (since there - * are fewer one-bits in the constants). - */ - -#if BITS_IN_JSAMPLE == 8 -#define CONST_BITS 8 -#define PASS1_BITS 2 -#else -#define CONST_BITS 8 -#define PASS1_BITS 1 /* lose a little precision to avoid overflow */ -#endif - -/* Some C compilers fail to reduce "FIX(constant)" at compile time, thus - * causing a lot of useless floating-point operations at run time. - * To get around this we use the following pre-calculated constants. - * If you change CONST_BITS you may want to add appropriate values. - * (With a reasonable C compiler, you can just rely on the FIX() macro...) - */ - -#if CONST_BITS == 8 -#define FIX_1_082392200 ((INT32) 277) /* FIX(1.082392200) */ -#define FIX_1_414213562 ((INT32) 362) /* FIX(1.414213562) */ -#define FIX_1_847759065 ((INT32) 473) /* FIX(1.847759065) */ -#define FIX_2_613125930 ((INT32) 669) /* FIX(2.613125930) */ -#else -#define FIX_1_082392200 FIX(1.082392200) -#define FIX_1_414213562 FIX(1.414213562) -#define FIX_1_847759065 FIX(1.847759065) -#define FIX_2_613125930 FIX(2.613125930) -#endif - - -/* We can gain a little more speed, with a further compromise in accuracy, - * by omitting the addition in a descaling shift. This yields an incorrectly - * rounded result half the time... - */ - -#ifndef USE_ACCURATE_ROUNDING -#undef DESCALE -#define DESCALE(x,n) RIGHT_SHIFT(x, n) -#endif - - -/* Multiply a DCTELEM variable by an INT32 constant, and immediately - * descale to yield a DCTELEM result. - */ - -#define MULTIPLY(var,const) ((DCTELEM) DESCALE((var) * (const), CONST_BITS)) - - -/* Dequantize a coefficient by multiplying it by the multiplier-table - * entry; produce a DCTELEM result. For 8-bit data a 16x16->16 - * multiplication will do. For 12-bit data, the multiplier table is - * declared INT32, so a 32-bit multiply will be used. - */ - -#if BITS_IN_JSAMPLE == 8 -#define DEQUANTIZE(coef,quantval) (((IFAST_MULT_TYPE) (coef)) * (quantval)) -#else -#define DEQUANTIZE(coef,quantval) \ - DESCALE((coef)*(quantval), IFAST_SCALE_BITS-PASS1_BITS) -#endif - - -/* Like DESCALE, but applies to a DCTELEM and produces an int. - * We assume that int right shift is unsigned if INT32 right shift is. - */ - -#ifdef RIGHT_SHIFT_IS_UNSIGNED -#define ISHIFT_TEMPS DCTELEM ishift_temp; -#if BITS_IN_JSAMPLE == 8 -#define DCTELEMBITS 16 /* DCTELEM may be 16 or 32 bits */ -#else -#define DCTELEMBITS 32 /* DCTELEM must be 32 bits */ -#endif -#define IRIGHT_SHIFT(x,shft) \ - ((ishift_temp = (x)) < 0 ? \ - (ishift_temp >> (shft)) | ((~((DCTELEM) 0)) << (DCTELEMBITS-(shft))) : \ - (ishift_temp >> (shft))) -#else -#define ISHIFT_TEMPS -#define IRIGHT_SHIFT(x,shft) ((x) >> (shft)) -#endif - -#ifdef USE_ACCURATE_ROUNDING -#define IDESCALE(x,n) ((int) IRIGHT_SHIFT((x) + (1 << ((n)-1)), n)) -#else -#define IDESCALE(x,n) ((int) IRIGHT_SHIFT(x, n)) -#endif - - -/* - * Perform dequantization and inverse DCT on one block of coefficients. - */ - -GLOBAL(void) -jpeg_idct_ifast (j_decompress_ptr cinfo, jpeg_component_info * compptr, - JCOEFPTR coef_block, - JSAMPARRAY output_buf, JDIMENSION output_col) -{ - DCTELEM tmp0, tmp1, tmp2, tmp3, tmp4, tmp5, tmp6, tmp7; - DCTELEM tmp10, tmp11, tmp12, tmp13; - DCTELEM z5, z10, z11, z12, z13; - JCOEFPTR inptr; - IFAST_MULT_TYPE * quantptr; - int * wsptr; - JSAMPROW outptr; - JSAMPLE *range_limit = IDCT_range_limit(cinfo); - int ctr; - int workspace[DCTSIZE2]; /* buffers data between passes */ - SHIFT_TEMPS /* for DESCALE */ - ISHIFT_TEMPS /* for IDESCALE */ - - /* Pass 1: process columns from input, store into work array. */ - - inptr = coef_block; - quantptr = (IFAST_MULT_TYPE *) compptr->dct_table; - wsptr = workspace; - for (ctr = DCTSIZE; ctr > 0; ctr--) { - /* Due to quantization, we will usually find that many of the input - * coefficients are zero, especially the AC terms. We can exploit this - * by short-circuiting the IDCT calculation for any column in which all - * the AC terms are zero. In that case each output is equal to the - * DC coefficient (with scale factor as needed). - * With typical images and quantization tables, half or more of the - * column DCT calculations can be simplified this way. - */ - - if (inptr[DCTSIZE*1] == 0 && inptr[DCTSIZE*2] == 0 && - inptr[DCTSIZE*3] == 0 && inptr[DCTSIZE*4] == 0 && - inptr[DCTSIZE*5] == 0 && inptr[DCTSIZE*6] == 0 && - inptr[DCTSIZE*7] == 0) { - /* AC terms all zero */ - int dcval = (int) DEQUANTIZE(inptr[DCTSIZE*0], quantptr[DCTSIZE*0]); - - wsptr[DCTSIZE*0] = dcval; - wsptr[DCTSIZE*1] = dcval; - wsptr[DCTSIZE*2] = dcval; - wsptr[DCTSIZE*3] = dcval; - wsptr[DCTSIZE*4] = dcval; - wsptr[DCTSIZE*5] = dcval; - wsptr[DCTSIZE*6] = dcval; - wsptr[DCTSIZE*7] = dcval; - - inptr++; /* advance pointers to next column */ - quantptr++; - wsptr++; - continue; - } - - /* Even part */ - - tmp0 = DEQUANTIZE(inptr[DCTSIZE*0], quantptr[DCTSIZE*0]); - tmp1 = DEQUANTIZE(inptr[DCTSIZE*2], quantptr[DCTSIZE*2]); - tmp2 = DEQUANTIZE(inptr[DCTSIZE*4], quantptr[DCTSIZE*4]); - tmp3 = DEQUANTIZE(inptr[DCTSIZE*6], quantptr[DCTSIZE*6]); - - tmp10 = tmp0 + tmp2; /* phase 3 */ - tmp11 = tmp0 - tmp2; - - tmp13 = tmp1 + tmp3; /* phases 5-3 */ - tmp12 = MULTIPLY(tmp1 - tmp3, FIX_1_414213562) - tmp13; /* 2*c4 */ - - tmp0 = tmp10 + tmp13; /* phase 2 */ - tmp3 = tmp10 - tmp13; - tmp1 = tmp11 + tmp12; - tmp2 = tmp11 - tmp12; - - /* Odd part */ - - tmp4 = DEQUANTIZE(inptr[DCTSIZE*1], quantptr[DCTSIZE*1]); - tmp5 = DEQUANTIZE(inptr[DCTSIZE*3], quantptr[DCTSIZE*3]); - tmp6 = DEQUANTIZE(inptr[DCTSIZE*5], quantptr[DCTSIZE*5]); - tmp7 = DEQUANTIZE(inptr[DCTSIZE*7], quantptr[DCTSIZE*7]); - - z13 = tmp6 + tmp5; /* phase 6 */ - z10 = tmp6 - tmp5; - z11 = tmp4 + tmp7; - z12 = tmp4 - tmp7; - - tmp7 = z11 + z13; /* phase 5 */ - tmp11 = MULTIPLY(z11 - z13, FIX_1_414213562); /* 2*c4 */ - - z5 = MULTIPLY(z10 + z12, FIX_1_847759065); /* 2*c2 */ - tmp10 = MULTIPLY(z12, FIX_1_082392200) - z5; /* 2*(c2-c6) */ - tmp12 = MULTIPLY(z10, - FIX_2_613125930) + z5; /* -2*(c2+c6) */ - - tmp6 = tmp12 - tmp7; /* phase 2 */ - tmp5 = tmp11 - tmp6; - tmp4 = tmp10 + tmp5; - - wsptr[DCTSIZE*0] = (int) (tmp0 + tmp7); - wsptr[DCTSIZE*7] = (int) (tmp0 - tmp7); - wsptr[DCTSIZE*1] = (int) (tmp1 + tmp6); - wsptr[DCTSIZE*6] = (int) (tmp1 - tmp6); - wsptr[DCTSIZE*2] = (int) (tmp2 + tmp5); - wsptr[DCTSIZE*5] = (int) (tmp2 - tmp5); - wsptr[DCTSIZE*4] = (int) (tmp3 + tmp4); - wsptr[DCTSIZE*3] = (int) (tmp3 - tmp4); - - inptr++; /* advance pointers to next column */ - quantptr++; - wsptr++; - } - - /* Pass 2: process rows from work array, store into output array. */ - /* Note that we must descale the results by a factor of 8 == 2**3, */ - /* and also undo the PASS1_BITS scaling. */ - - wsptr = workspace; - for (ctr = 0; ctr < DCTSIZE; ctr++) { - outptr = output_buf[ctr] + output_col; - /* Rows of zeroes can be exploited in the same way as we did with columns. - * However, the column calculation has created many nonzero AC terms, so - * the simplification applies less often (typically 5% to 10% of the time). - * On machines with very fast multiplication, it's possible that the - * test takes more time than it's worth. In that case this section - * may be commented out. - */ - -#ifndef NO_ZERO_ROW_TEST - if (wsptr[1] == 0 && wsptr[2] == 0 && wsptr[3] == 0 && wsptr[4] == 0 && - wsptr[5] == 0 && wsptr[6] == 0 && wsptr[7] == 0) { - /* AC terms all zero */ - JSAMPLE dcval = range_limit[IDESCALE(wsptr[0], PASS1_BITS+3) - & RANGE_MASK]; - - outptr[0] = dcval; - outptr[1] = dcval; - outptr[2] = dcval; - outptr[3] = dcval; - outptr[4] = dcval; - outptr[5] = dcval; - outptr[6] = dcval; - outptr[7] = dcval; - - wsptr += DCTSIZE; /* advance pointer to next row */ - continue; - } -#endif - - /* Even part */ - - tmp10 = ((DCTELEM) wsptr[0] + (DCTELEM) wsptr[4]); - tmp11 = ((DCTELEM) wsptr[0] - (DCTELEM) wsptr[4]); - - tmp13 = ((DCTELEM) wsptr[2] + (DCTELEM) wsptr[6]); - tmp12 = MULTIPLY((DCTELEM) wsptr[2] - (DCTELEM) wsptr[6], FIX_1_414213562) - - tmp13; - - tmp0 = tmp10 + tmp13; - tmp3 = tmp10 - tmp13; - tmp1 = tmp11 + tmp12; - tmp2 = tmp11 - tmp12; - - /* Odd part */ - - z13 = (DCTELEM) wsptr[5] + (DCTELEM) wsptr[3]; - z10 = (DCTELEM) wsptr[5] - (DCTELEM) wsptr[3]; - z11 = (DCTELEM) wsptr[1] + (DCTELEM) wsptr[7]; - z12 = (DCTELEM) wsptr[1] - (DCTELEM) wsptr[7]; - - tmp7 = z11 + z13; /* phase 5 */ - tmp11 = MULTIPLY(z11 - z13, FIX_1_414213562); /* 2*c4 */ - - z5 = MULTIPLY(z10 + z12, FIX_1_847759065); /* 2*c2 */ - tmp10 = MULTIPLY(z12, FIX_1_082392200) - z5; /* 2*(c2-c6) */ - tmp12 = MULTIPLY(z10, - FIX_2_613125930) + z5; /* -2*(c2+c6) */ - - tmp6 = tmp12 - tmp7; /* phase 2 */ - tmp5 = tmp11 - tmp6; - tmp4 = tmp10 + tmp5; - - /* Final output stage: scale down by a factor of 8 and range-limit */ - - outptr[0] = range_limit[IDESCALE(tmp0 + tmp7, PASS1_BITS+3) - & RANGE_MASK]; - outptr[7] = range_limit[IDESCALE(tmp0 - tmp7, PASS1_BITS+3) - & RANGE_MASK]; - outptr[1] = range_limit[IDESCALE(tmp1 + tmp6, PASS1_BITS+3) - & RANGE_MASK]; - outptr[6] = range_limit[IDESCALE(tmp1 - tmp6, PASS1_BITS+3) - & RANGE_MASK]; - outptr[2] = range_limit[IDESCALE(tmp2 + tmp5, PASS1_BITS+3) - & RANGE_MASK]; - outptr[5] = range_limit[IDESCALE(tmp2 - tmp5, PASS1_BITS+3) - & RANGE_MASK]; - outptr[4] = range_limit[IDESCALE(tmp3 + tmp4, PASS1_BITS+3) - & RANGE_MASK]; - outptr[3] = range_limit[IDESCALE(tmp3 - tmp4, PASS1_BITS+3) - & RANGE_MASK]; - - wsptr += DCTSIZE; /* advance pointer to next row */ - } -} - -#endif /* DCT_IFAST_SUPPORTED */ diff --git a/jpg/jidctint.c b/jpg/jidctint.c deleted file mode 100644 index dcdf7ce..0000000 --- a/jpg/jidctint.c +++ /dev/null @@ -1,5137 +0,0 @@ -/* - * jidctint.c - * - * Copyright (C) 1991-1998, Thomas G. Lane. - * Modification developed 2002-2009 by Guido Vollbeding. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file contains a slow-but-accurate integer implementation of the - * inverse DCT (Discrete Cosine Transform). In the IJG code, this routine - * must also perform dequantization of the input coefficients. - * - * A 2-D IDCT can be done by 1-D IDCT on each column followed by 1-D IDCT - * on each row (or vice versa, but it's more convenient to emit a row at - * a time). Direct algorithms are also available, but they are much more - * complex and seem not to be any faster when reduced to code. - * - * This implementation is based on an algorithm described in - * C. Loeffler, A. Ligtenberg and G. Moschytz, "Practical Fast 1-D DCT - * Algorithms with 11 Multiplications", Proc. Int'l. Conf. on Acoustics, - * Speech, and Signal Processing 1989 (ICASSP '89), pp. 988-991. - * The primary algorithm described there uses 11 multiplies and 29 adds. - * We use their alternate method with 12 multiplies and 32 adds. - * The advantage of this method is that no data path contains more than one - * multiplication; this allows a very simple and accurate implementation in - * scaled fixed-point arithmetic, with a minimal number of shifts. - * - * We also provide IDCT routines with various output sample block sizes for - * direct resolution reduction or enlargement and for direct resolving the - * common 2x1 and 1x2 subsampling cases without additional resampling: NxN - * (N=1...16), 2NxN, and Nx2N (N=1...8) pixels for one 8x8 input DCT block. - * - * For N<8 we simply take the corresponding low-frequency coefficients of - * the 8x8 input DCT block and apply an NxN point IDCT on the sub-block - * to yield the downscaled outputs. - * This can be seen as direct low-pass downsampling from the DCT domain - * point of view rather than the usual spatial domain point of view, - * yielding significant computational savings and results at least - * as good as common bilinear (averaging) spatial downsampling. - * - * For N>8 we apply a partial NxN IDCT on the 8 input coefficients as - * lower frequencies and higher frequencies assumed to be zero. - * It turns out that the computational effort is similar to the 8x8 IDCT - * regarding the output size. - * Furthermore, the scaling and descaling is the same for all IDCT sizes. - * - * CAUTION: We rely on the FIX() macro except for the N=1,2,4,8 cases - * since there would be too many additional constants to pre-calculate. - */ - -#define JPEG_INTERNALS -#include "jinclude.h" -#include "jpeglib.h" -#include "jdct.h" /* Private declarations for DCT subsystem */ - -#ifdef DCT_ISLOW_SUPPORTED - - -/* - * This module is specialized to the case DCTSIZE = 8. - */ - -#if DCTSIZE != 8 - Sorry, this code only copes with 8x8 DCT blocks. /* deliberate syntax err */ -#endif - - -/* - * The poop on this scaling stuff is as follows: - * - * Each 1-D IDCT step produces outputs which are a factor of sqrt(N) - * larger than the true IDCT outputs. The final outputs are therefore - * a factor of N larger than desired; since N=8 this can be cured by - * a simple right shift at the end of the algorithm. The advantage of - * this arrangement is that we save two multiplications per 1-D IDCT, - * because the y0 and y4 inputs need not be divided by sqrt(N). - * - * We have to do addition and subtraction of the integer inputs, which - * is no problem, and multiplication by fractional constants, which is - * a problem to do in integer arithmetic. We multiply all the constants - * by CONST_SCALE and convert them to integer constants (thus retaining - * CONST_BITS bits of precision in the constants). After doing a - * multiplication we have to divide the product by CONST_SCALE, with proper - * rounding, to produce the correct output. This division can be done - * cheaply as a right shift of CONST_BITS bits. We postpone shifting - * as long as possible so that partial sums can be added together with - * full fractional precision. - * - * The outputs of the first pass are scaled up by PASS1_BITS bits so that - * they are represented to better-than-integral precision. These outputs - * require BITS_IN_JSAMPLE + PASS1_BITS + 3 bits; this fits in a 16-bit word - * with the recommended scaling. (To scale up 12-bit sample data further, an - * intermediate INT32 array would be needed.) - * - * To avoid overflow of the 32-bit intermediate results in pass 2, we must - * have BITS_IN_JSAMPLE + CONST_BITS + PASS1_BITS <= 26. Error analysis - * shows that the values given below are the most effective. - */ - -#if BITS_IN_JSAMPLE == 8 -#define CONST_BITS 13 -#define PASS1_BITS 2 -#else -#define CONST_BITS 13 -#define PASS1_BITS 1 /* lose a little precision to avoid overflow */ -#endif - -/* Some C compilers fail to reduce "FIX(constant)" at compile time, thus - * causing a lot of useless floating-point operations at run time. - * To get around this we use the following pre-calculated constants. - * If you change CONST_BITS you may want to add appropriate values. - * (With a reasonable C compiler, you can just rely on the FIX() macro...) - */ - -#if CONST_BITS == 13 -#define FIX_0_298631336 ((INT32) 2446) /* FIX(0.298631336) */ -#define FIX_0_390180644 ((INT32) 3196) /* FIX(0.390180644) */ -#define FIX_0_541196100 ((INT32) 4433) /* FIX(0.541196100) */ -#define FIX_0_765366865 ((INT32) 6270) /* FIX(0.765366865) */ -#define FIX_0_899976223 ((INT32) 7373) /* FIX(0.899976223) */ -#define FIX_1_175875602 ((INT32) 9633) /* FIX(1.175875602) */ -#define FIX_1_501321110 ((INT32) 12299) /* FIX(1.501321110) */ -#define FIX_1_847759065 ((INT32) 15137) /* FIX(1.847759065) */ -#define FIX_1_961570560 ((INT32) 16069) /* FIX(1.961570560) */ -#define FIX_2_053119869 ((INT32) 16819) /* FIX(2.053119869) */ -#define FIX_2_562915447 ((INT32) 20995) /* FIX(2.562915447) */ -#define FIX_3_072711026 ((INT32) 25172) /* FIX(3.072711026) */ -#else -#define FIX_0_298631336 FIX(0.298631336) -#define FIX_0_390180644 FIX(0.390180644) -#define FIX_0_541196100 FIX(0.541196100) -#define FIX_0_765366865 FIX(0.765366865) -#define FIX_0_899976223 FIX(0.899976223) -#define FIX_1_175875602 FIX(1.175875602) -#define FIX_1_501321110 FIX(1.501321110) -#define FIX_1_847759065 FIX(1.847759065) -#define FIX_1_961570560 FIX(1.961570560) -#define FIX_2_053119869 FIX(2.053119869) -#define FIX_2_562915447 FIX(2.562915447) -#define FIX_3_072711026 FIX(3.072711026) -#endif - - -/* Multiply an INT32 variable by an INT32 constant to yield an INT32 result. - * For 8-bit samples with the recommended scaling, all the variable - * and constant values involved are no more than 16 bits wide, so a - * 16x16->32 bit multiply can be used instead of a full 32x32 multiply. - * For 12-bit samples, a full 32-bit multiplication will be needed. - */ - -#if BITS_IN_JSAMPLE == 8 -#define MULTIPLY(var,const) MULTIPLY16C16(var,const) -#else -#define MULTIPLY(var,const) ((var) * (const)) -#endif - - -/* Dequantize a coefficient by multiplying it by the multiplier-table - * entry; produce an int result. In this module, both inputs and result - * are 16 bits or less, so either int or short multiply will work. - */ - -#define DEQUANTIZE(coef,quantval) (((ISLOW_MULT_TYPE) (coef)) * (quantval)) - - -/* - * Perform dequantization and inverse DCT on one block of coefficients. - */ - -GLOBAL(void) -jpeg_idct_islow (j_decompress_ptr cinfo, jpeg_component_info * compptr, - JCOEFPTR coef_block, - JSAMPARRAY output_buf, JDIMENSION output_col) -{ - INT32 tmp0, tmp1, tmp2, tmp3; - INT32 tmp10, tmp11, tmp12, tmp13; - INT32 z1, z2, z3; - JCOEFPTR inptr; - ISLOW_MULT_TYPE * quantptr; - int * wsptr; - JSAMPROW outptr; - JSAMPLE *range_limit = IDCT_range_limit(cinfo); - int ctr; - int workspace[DCTSIZE2]; /* buffers data between passes */ - SHIFT_TEMPS - - /* Pass 1: process columns from input, store into work array. */ - /* Note results are scaled up by sqrt(8) compared to a true IDCT; */ - /* furthermore, we scale the results by 2**PASS1_BITS. */ - - inptr = coef_block; - quantptr = (ISLOW_MULT_TYPE *) compptr->dct_table; - wsptr = workspace; - for (ctr = DCTSIZE; ctr > 0; ctr--) { - /* Due to quantization, we will usually find that many of the input - * coefficients are zero, especially the AC terms. We can exploit this - * by short-circuiting the IDCT calculation for any column in which all - * the AC terms are zero. In that case each output is equal to the - * DC coefficient (with scale factor as needed). - * With typical images and quantization tables, half or more of the - * column DCT calculations can be simplified this way. - */ - - if (inptr[DCTSIZE*1] == 0 && inptr[DCTSIZE*2] == 0 && - inptr[DCTSIZE*3] == 0 && inptr[DCTSIZE*4] == 0 && - inptr[DCTSIZE*5] == 0 && inptr[DCTSIZE*6] == 0 && - inptr[DCTSIZE*7] == 0) { - /* AC terms all zero */ - int dcval = DEQUANTIZE(inptr[DCTSIZE*0], quantptr[DCTSIZE*0]) << PASS1_BITS; - - wsptr[DCTSIZE*0] = dcval; - wsptr[DCTSIZE*1] = dcval; - wsptr[DCTSIZE*2] = dcval; - wsptr[DCTSIZE*3] = dcval; - wsptr[DCTSIZE*4] = dcval; - wsptr[DCTSIZE*5] = dcval; - wsptr[DCTSIZE*6] = dcval; - wsptr[DCTSIZE*7] = dcval; - - inptr++; /* advance pointers to next column */ - quantptr++; - wsptr++; - continue; - } - - /* Even part: reverse the even part of the forward DCT. */ - /* The rotator is sqrt(2)*c(-6). */ - - z2 = DEQUANTIZE(inptr[DCTSIZE*2], quantptr[DCTSIZE*2]); - z3 = DEQUANTIZE(inptr[DCTSIZE*6], quantptr[DCTSIZE*6]); - - z1 = MULTIPLY(z2 + z3, FIX_0_541196100); - tmp2 = z1 + MULTIPLY(z2, FIX_0_765366865); - tmp3 = z1 - MULTIPLY(z3, FIX_1_847759065); - - z2 = DEQUANTIZE(inptr[DCTSIZE*0], quantptr[DCTSIZE*0]); - z3 = DEQUANTIZE(inptr[DCTSIZE*4], quantptr[DCTSIZE*4]); - z2 <<= CONST_BITS; - z3 <<= CONST_BITS; - /* Add fudge factor here for final descale. */ - z2 += ONE << (CONST_BITS-PASS1_BITS-1); - - tmp0 = z2 + z3; - tmp1 = z2 - z3; - - tmp10 = tmp0 + tmp2; - tmp13 = tmp0 - tmp2; - tmp11 = tmp1 + tmp3; - tmp12 = tmp1 - tmp3; - - /* Odd part per figure 8; the matrix is unitary and hence its - * transpose is its inverse. i0..i3 are y7,y5,y3,y1 respectively. - */ - - tmp0 = DEQUANTIZE(inptr[DCTSIZE*7], quantptr[DCTSIZE*7]); - tmp1 = DEQUANTIZE(inptr[DCTSIZE*5], quantptr[DCTSIZE*5]); - tmp2 = DEQUANTIZE(inptr[DCTSIZE*3], quantptr[DCTSIZE*3]); - tmp3 = DEQUANTIZE(inptr[DCTSIZE*1], quantptr[DCTSIZE*1]); - - z2 = tmp0 + tmp2; - z3 = tmp1 + tmp3; - - z1 = MULTIPLY(z2 + z3, FIX_1_175875602); /* sqrt(2) * c3 */ - z2 = MULTIPLY(z2, - FIX_1_961570560); /* sqrt(2) * (-c3-c5) */ - z3 = MULTIPLY(z3, - FIX_0_390180644); /* sqrt(2) * (c5-c3) */ - z2 += z1; - z3 += z1; - - z1 = MULTIPLY(tmp0 + tmp3, - FIX_0_899976223); /* sqrt(2) * (c7-c3) */ - tmp0 = MULTIPLY(tmp0, FIX_0_298631336); /* sqrt(2) * (-c1+c3+c5-c7) */ - tmp3 = MULTIPLY(tmp3, FIX_1_501321110); /* sqrt(2) * ( c1+c3-c5-c7) */ - tmp0 += z1 + z2; - tmp3 += z1 + z3; - - z1 = MULTIPLY(tmp1 + tmp2, - FIX_2_562915447); /* sqrt(2) * (-c1-c3) */ - tmp1 = MULTIPLY(tmp1, FIX_2_053119869); /* sqrt(2) * ( c1+c3-c5+c7) */ - tmp2 = MULTIPLY(tmp2, FIX_3_072711026); /* sqrt(2) * ( c1+c3+c5-c7) */ - tmp1 += z1 + z3; - tmp2 += z1 + z2; - - /* Final output stage: inputs are tmp10..tmp13, tmp0..tmp3 */ - - wsptr[DCTSIZE*0] = (int) RIGHT_SHIFT(tmp10 + tmp3, CONST_BITS-PASS1_BITS); - wsptr[DCTSIZE*7] = (int) RIGHT_SHIFT(tmp10 - tmp3, CONST_BITS-PASS1_BITS); - wsptr[DCTSIZE*1] = (int) RIGHT_SHIFT(tmp11 + tmp2, CONST_BITS-PASS1_BITS); - wsptr[DCTSIZE*6] = (int) RIGHT_SHIFT(tmp11 - tmp2, CONST_BITS-PASS1_BITS); - wsptr[DCTSIZE*2] = (int) RIGHT_SHIFT(tmp12 + tmp1, CONST_BITS-PASS1_BITS); - wsptr[DCTSIZE*5] = (int) RIGHT_SHIFT(tmp12 - tmp1, CONST_BITS-PASS1_BITS); - wsptr[DCTSIZE*3] = (int) RIGHT_SHIFT(tmp13 + tmp0, CONST_BITS-PASS1_BITS); - wsptr[DCTSIZE*4] = (int) RIGHT_SHIFT(tmp13 - tmp0, CONST_BITS-PASS1_BITS); - - inptr++; /* advance pointers to next column */ - quantptr++; - wsptr++; - } - - /* Pass 2: process rows from work array, store into output array. */ - /* Note that we must descale the results by a factor of 8 == 2**3, */ - /* and also undo the PASS1_BITS scaling. */ - - wsptr = workspace; - for (ctr = 0; ctr < DCTSIZE; ctr++) { - outptr = output_buf[ctr] + output_col; - /* Rows of zeroes can be exploited in the same way as we did with columns. - * However, the column calculation has created many nonzero AC terms, so - * the simplification applies less often (typically 5% to 10% of the time). - * On machines with very fast multiplication, it's possible that the - * test takes more time than it's worth. In that case this section - * may be commented out. - */ - -#ifndef NO_ZERO_ROW_TEST - if (wsptr[1] == 0 && wsptr[2] == 0 && wsptr[3] == 0 && wsptr[4] == 0 && - wsptr[5] == 0 && wsptr[6] == 0 && wsptr[7] == 0) { - /* AC terms all zero */ - JSAMPLE dcval = range_limit[(int) DESCALE((INT32) wsptr[0], PASS1_BITS+3) - & RANGE_MASK]; - - outptr[0] = dcval; - outptr[1] = dcval; - outptr[2] = dcval; - outptr[3] = dcval; - outptr[4] = dcval; - outptr[5] = dcval; - outptr[6] = dcval; - outptr[7] = dcval; - - wsptr += DCTSIZE; /* advance pointer to next row */ - continue; - } -#endif - - /* Even part: reverse the even part of the forward DCT. */ - /* The rotator is sqrt(2)*c(-6). */ - - z2 = (INT32) wsptr[2]; - z3 = (INT32) wsptr[6]; - - z1 = MULTIPLY(z2 + z3, FIX_0_541196100); - tmp2 = z1 + MULTIPLY(z2, FIX_0_765366865); - tmp3 = z1 - MULTIPLY(z3, FIX_1_847759065); - - /* Add fudge factor here for final descale. */ - z2 = (INT32) wsptr[0] + (ONE << (PASS1_BITS+2)); - z3 = (INT32) wsptr[4]; - - tmp0 = (z2 + z3) << CONST_BITS; - tmp1 = (z2 - z3) << CONST_BITS; - - tmp10 = tmp0 + tmp2; - tmp13 = tmp0 - tmp2; - tmp11 = tmp1 + tmp3; - tmp12 = tmp1 - tmp3; - - /* Odd part per figure 8; the matrix is unitary and hence its - * transpose is its inverse. i0..i3 are y7,y5,y3,y1 respectively. - */ - - tmp0 = (INT32) wsptr[7]; - tmp1 = (INT32) wsptr[5]; - tmp2 = (INT32) wsptr[3]; - tmp3 = (INT32) wsptr[1]; - - z2 = tmp0 + tmp2; - z3 = tmp1 + tmp3; - - z1 = MULTIPLY(z2 + z3, FIX_1_175875602); /* sqrt(2) * c3 */ - z2 = MULTIPLY(z2, - FIX_1_961570560); /* sqrt(2) * (-c3-c5) */ - z3 = MULTIPLY(z3, - FIX_0_390180644); /* sqrt(2) * (c5-c3) */ - z2 += z1; - z3 += z1; - - z1 = MULTIPLY(tmp0 + tmp3, - FIX_0_899976223); /* sqrt(2) * (c7-c3) */ - tmp0 = MULTIPLY(tmp0, FIX_0_298631336); /* sqrt(2) * (-c1+c3+c5-c7) */ - tmp3 = MULTIPLY(tmp3, FIX_1_501321110); /* sqrt(2) * ( c1+c3-c5-c7) */ - tmp0 += z1 + z2; - tmp3 += z1 + z3; - - z1 = MULTIPLY(tmp1 + tmp2, - FIX_2_562915447); /* sqrt(2) * (-c1-c3) */ - tmp1 = MULTIPLY(tmp1, FIX_2_053119869); /* sqrt(2) * ( c1+c3-c5+c7) */ - tmp2 = MULTIPLY(tmp2, FIX_3_072711026); /* sqrt(2) * ( c1+c3+c5-c7) */ - tmp1 += z1 + z3; - tmp2 += z1 + z2; - - /* Final output stage: inputs are tmp10..tmp13, tmp0..tmp3 */ - - outptr[0] = range_limit[(int) RIGHT_SHIFT(tmp10 + tmp3, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[7] = range_limit[(int) RIGHT_SHIFT(tmp10 - tmp3, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[1] = range_limit[(int) RIGHT_SHIFT(tmp11 + tmp2, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[6] = range_limit[(int) RIGHT_SHIFT(tmp11 - tmp2, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[2] = range_limit[(int) RIGHT_SHIFT(tmp12 + tmp1, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[5] = range_limit[(int) RIGHT_SHIFT(tmp12 - tmp1, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[3] = range_limit[(int) RIGHT_SHIFT(tmp13 + tmp0, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[4] = range_limit[(int) RIGHT_SHIFT(tmp13 - tmp0, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - - wsptr += DCTSIZE; /* advance pointer to next row */ - } -} - -#ifdef IDCT_SCALING_SUPPORTED - - -/* - * Perform dequantization and inverse DCT on one block of coefficients, - * producing a 7x7 output block. - * - * Optimized algorithm with 12 multiplications in the 1-D kernel. - * cK represents sqrt(2) * cos(K*pi/14). - */ - -GLOBAL(void) -jpeg_idct_7x7 (j_decompress_ptr cinfo, jpeg_component_info * compptr, - JCOEFPTR coef_block, - JSAMPARRAY output_buf, JDIMENSION output_col) -{ - INT32 tmp0, tmp1, tmp2, tmp10, tmp11, tmp12, tmp13; - INT32 z1, z2, z3; - JCOEFPTR inptr; - ISLOW_MULT_TYPE * quantptr; - int * wsptr; - JSAMPROW outptr; - JSAMPLE *range_limit = IDCT_range_limit(cinfo); - int ctr; - int workspace[7*7]; /* buffers data between passes */ - SHIFT_TEMPS - - /* Pass 1: process columns from input, store into work array. */ - - inptr = coef_block; - quantptr = (ISLOW_MULT_TYPE *) compptr->dct_table; - wsptr = workspace; - for (ctr = 0; ctr < 7; ctr++, inptr++, quantptr++, wsptr++) { - /* Even part */ - - tmp13 = DEQUANTIZE(inptr[DCTSIZE*0], quantptr[DCTSIZE*0]); - tmp13 <<= CONST_BITS; - /* Add fudge factor here for final descale. */ - tmp13 += ONE << (CONST_BITS-PASS1_BITS-1); - - z1 = DEQUANTIZE(inptr[DCTSIZE*2], quantptr[DCTSIZE*2]); - z2 = DEQUANTIZE(inptr[DCTSIZE*4], quantptr[DCTSIZE*4]); - z3 = DEQUANTIZE(inptr[DCTSIZE*6], quantptr[DCTSIZE*6]); - - tmp10 = MULTIPLY(z2 - z3, FIX(0.881747734)); /* c4 */ - tmp12 = MULTIPLY(z1 - z2, FIX(0.314692123)); /* c6 */ - tmp11 = tmp10 + tmp12 + tmp13 - MULTIPLY(z2, FIX(1.841218003)); /* c2+c4-c6 */ - tmp0 = z1 + z3; - z2 -= tmp0; - tmp0 = MULTIPLY(tmp0, FIX(1.274162392)) + tmp13; /* c2 */ - tmp10 += tmp0 - MULTIPLY(z3, FIX(0.077722536)); /* c2-c4-c6 */ - tmp12 += tmp0 - MULTIPLY(z1, FIX(2.470602249)); /* c2+c4+c6 */ - tmp13 += MULTIPLY(z2, FIX(1.414213562)); /* c0 */ - - /* Odd part */ - - z1 = DEQUANTIZE(inptr[DCTSIZE*1], quantptr[DCTSIZE*1]); - z2 = DEQUANTIZE(inptr[DCTSIZE*3], quantptr[DCTSIZE*3]); - z3 = DEQUANTIZE(inptr[DCTSIZE*5], quantptr[DCTSIZE*5]); - - tmp1 = MULTIPLY(z1 + z2, FIX(0.935414347)); /* (c3+c1-c5)/2 */ - tmp2 = MULTIPLY(z1 - z2, FIX(0.170262339)); /* (c3+c5-c1)/2 */ - tmp0 = tmp1 - tmp2; - tmp1 += tmp2; - tmp2 = MULTIPLY(z2 + z3, - FIX(1.378756276)); /* -c1 */ - tmp1 += tmp2; - z2 = MULTIPLY(z1 + z3, FIX(0.613604268)); /* c5 */ - tmp0 += z2; - tmp2 += z2 + MULTIPLY(z3, FIX(1.870828693)); /* c3+c1-c5 */ - - /* Final output stage */ - - wsptr[7*0] = (int) RIGHT_SHIFT(tmp10 + tmp0, CONST_BITS-PASS1_BITS); - wsptr[7*6] = (int) RIGHT_SHIFT(tmp10 - tmp0, CONST_BITS-PASS1_BITS); - wsptr[7*1] = (int) RIGHT_SHIFT(tmp11 + tmp1, CONST_BITS-PASS1_BITS); - wsptr[7*5] = (int) RIGHT_SHIFT(tmp11 - tmp1, CONST_BITS-PASS1_BITS); - wsptr[7*2] = (int) RIGHT_SHIFT(tmp12 + tmp2, CONST_BITS-PASS1_BITS); - wsptr[7*4] = (int) RIGHT_SHIFT(tmp12 - tmp2, CONST_BITS-PASS1_BITS); - wsptr[7*3] = (int) RIGHT_SHIFT(tmp13, CONST_BITS-PASS1_BITS); - } - - /* Pass 2: process 7 rows from work array, store into output array. */ - - wsptr = workspace; - for (ctr = 0; ctr < 7; ctr++) { - outptr = output_buf[ctr] + output_col; - - /* Even part */ - - /* Add fudge factor here for final descale. */ - tmp13 = (INT32) wsptr[0] + (ONE << (PASS1_BITS+2)); - tmp13 <<= CONST_BITS; - - z1 = (INT32) wsptr[2]; - z2 = (INT32) wsptr[4]; - z3 = (INT32) wsptr[6]; - - tmp10 = MULTIPLY(z2 - z3, FIX(0.881747734)); /* c4 */ - tmp12 = MULTIPLY(z1 - z2, FIX(0.314692123)); /* c6 */ - tmp11 = tmp10 + tmp12 + tmp13 - MULTIPLY(z2, FIX(1.841218003)); /* c2+c4-c6 */ - tmp0 = z1 + z3; - z2 -= tmp0; - tmp0 = MULTIPLY(tmp0, FIX(1.274162392)) + tmp13; /* c2 */ - tmp10 += tmp0 - MULTIPLY(z3, FIX(0.077722536)); /* c2-c4-c6 */ - tmp12 += tmp0 - MULTIPLY(z1, FIX(2.470602249)); /* c2+c4+c6 */ - tmp13 += MULTIPLY(z2, FIX(1.414213562)); /* c0 */ - - /* Odd part */ - - z1 = (INT32) wsptr[1]; - z2 = (INT32) wsptr[3]; - z3 = (INT32) wsptr[5]; - - tmp1 = MULTIPLY(z1 + z2, FIX(0.935414347)); /* (c3+c1-c5)/2 */ - tmp2 = MULTIPLY(z1 - z2, FIX(0.170262339)); /* (c3+c5-c1)/2 */ - tmp0 = tmp1 - tmp2; - tmp1 += tmp2; - tmp2 = MULTIPLY(z2 + z3, - FIX(1.378756276)); /* -c1 */ - tmp1 += tmp2; - z2 = MULTIPLY(z1 + z3, FIX(0.613604268)); /* c5 */ - tmp0 += z2; - tmp2 += z2 + MULTIPLY(z3, FIX(1.870828693)); /* c3+c1-c5 */ - - /* Final output stage */ - - outptr[0] = range_limit[(int) RIGHT_SHIFT(tmp10 + tmp0, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[6] = range_limit[(int) RIGHT_SHIFT(tmp10 - tmp0, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[1] = range_limit[(int) RIGHT_SHIFT(tmp11 + tmp1, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[5] = range_limit[(int) RIGHT_SHIFT(tmp11 - tmp1, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[2] = range_limit[(int) RIGHT_SHIFT(tmp12 + tmp2, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[4] = range_limit[(int) RIGHT_SHIFT(tmp12 - tmp2, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[3] = range_limit[(int) RIGHT_SHIFT(tmp13, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - - wsptr += 7; /* advance pointer to next row */ - } -} - - -/* - * Perform dequantization and inverse DCT on one block of coefficients, - * producing a reduced-size 6x6 output block. - * - * Optimized algorithm with 3 multiplications in the 1-D kernel. - * cK represents sqrt(2) * cos(K*pi/12). - */ - -GLOBAL(void) -jpeg_idct_6x6 (j_decompress_ptr cinfo, jpeg_component_info * compptr, - JCOEFPTR coef_block, - JSAMPARRAY output_buf, JDIMENSION output_col) -{ - INT32 tmp0, tmp1, tmp2, tmp10, tmp11, tmp12; - INT32 z1, z2, z3; - JCOEFPTR inptr; - ISLOW_MULT_TYPE * quantptr; - int * wsptr; - JSAMPROW outptr; - JSAMPLE *range_limit = IDCT_range_limit(cinfo); - int ctr; - int workspace[6*6]; /* buffers data between passes */ - SHIFT_TEMPS - - /* Pass 1: process columns from input, store into work array. */ - - inptr = coef_block; - quantptr = (ISLOW_MULT_TYPE *) compptr->dct_table; - wsptr = workspace; - for (ctr = 0; ctr < 6; ctr++, inptr++, quantptr++, wsptr++) { - /* Even part */ - - tmp0 = DEQUANTIZE(inptr[DCTSIZE*0], quantptr[DCTSIZE*0]); - tmp0 <<= CONST_BITS; - /* Add fudge factor here for final descale. */ - tmp0 += ONE << (CONST_BITS-PASS1_BITS-1); - tmp2 = DEQUANTIZE(inptr[DCTSIZE*4], quantptr[DCTSIZE*4]); - tmp10 = MULTIPLY(tmp2, FIX(0.707106781)); /* c4 */ - tmp1 = tmp0 + tmp10; - tmp11 = RIGHT_SHIFT(tmp0 - tmp10 - tmp10, CONST_BITS-PASS1_BITS); - tmp10 = DEQUANTIZE(inptr[DCTSIZE*2], quantptr[DCTSIZE*2]); - tmp0 = MULTIPLY(tmp10, FIX(1.224744871)); /* c2 */ - tmp10 = tmp1 + tmp0; - tmp12 = tmp1 - tmp0; - - /* Odd part */ - - z1 = DEQUANTIZE(inptr[DCTSIZE*1], quantptr[DCTSIZE*1]); - z2 = DEQUANTIZE(inptr[DCTSIZE*3], quantptr[DCTSIZE*3]); - z3 = DEQUANTIZE(inptr[DCTSIZE*5], quantptr[DCTSIZE*5]); - tmp1 = MULTIPLY(z1 + z3, FIX(0.366025404)); /* c5 */ - tmp0 = tmp1 + ((z1 + z2) << CONST_BITS); - tmp2 = tmp1 + ((z3 - z2) << CONST_BITS); - tmp1 = (z1 - z2 - z3) << PASS1_BITS; - - /* Final output stage */ - - wsptr[6*0] = (int) RIGHT_SHIFT(tmp10 + tmp0, CONST_BITS-PASS1_BITS); - wsptr[6*5] = (int) RIGHT_SHIFT(tmp10 - tmp0, CONST_BITS-PASS1_BITS); - wsptr[6*1] = (int) (tmp11 + tmp1); - wsptr[6*4] = (int) (tmp11 - tmp1); - wsptr[6*2] = (int) RIGHT_SHIFT(tmp12 + tmp2, CONST_BITS-PASS1_BITS); - wsptr[6*3] = (int) RIGHT_SHIFT(tmp12 - tmp2, CONST_BITS-PASS1_BITS); - } - - /* Pass 2: process 6 rows from work array, store into output array. */ - - wsptr = workspace; - for (ctr = 0; ctr < 6; ctr++) { - outptr = output_buf[ctr] + output_col; - - /* Even part */ - - /* Add fudge factor here for final descale. */ - tmp0 = (INT32) wsptr[0] + (ONE << (PASS1_BITS+2)); - tmp0 <<= CONST_BITS; - tmp2 = (INT32) wsptr[4]; - tmp10 = MULTIPLY(tmp2, FIX(0.707106781)); /* c4 */ - tmp1 = tmp0 + tmp10; - tmp11 = tmp0 - tmp10 - tmp10; - tmp10 = (INT32) wsptr[2]; - tmp0 = MULTIPLY(tmp10, FIX(1.224744871)); /* c2 */ - tmp10 = tmp1 + tmp0; - tmp12 = tmp1 - tmp0; - - /* Odd part */ - - z1 = (INT32) wsptr[1]; - z2 = (INT32) wsptr[3]; - z3 = (INT32) wsptr[5]; - tmp1 = MULTIPLY(z1 + z3, FIX(0.366025404)); /* c5 */ - tmp0 = tmp1 + ((z1 + z2) << CONST_BITS); - tmp2 = tmp1 + ((z3 - z2) << CONST_BITS); - tmp1 = (z1 - z2 - z3) << CONST_BITS; - - /* Final output stage */ - - outptr[0] = range_limit[(int) RIGHT_SHIFT(tmp10 + tmp0, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[5] = range_limit[(int) RIGHT_SHIFT(tmp10 - tmp0, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[1] = range_limit[(int) RIGHT_SHIFT(tmp11 + tmp1, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[4] = range_limit[(int) RIGHT_SHIFT(tmp11 - tmp1, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[2] = range_limit[(int) RIGHT_SHIFT(tmp12 + tmp2, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[3] = range_limit[(int) RIGHT_SHIFT(tmp12 - tmp2, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - - wsptr += 6; /* advance pointer to next row */ - } -} - - -/* - * Perform dequantization and inverse DCT on one block of coefficients, - * producing a reduced-size 5x5 output block. - * - * Optimized algorithm with 5 multiplications in the 1-D kernel. - * cK represents sqrt(2) * cos(K*pi/10). - */ - -GLOBAL(void) -jpeg_idct_5x5 (j_decompress_ptr cinfo, jpeg_component_info * compptr, - JCOEFPTR coef_block, - JSAMPARRAY output_buf, JDIMENSION output_col) -{ - INT32 tmp0, tmp1, tmp10, tmp11, tmp12; - INT32 z1, z2, z3; - JCOEFPTR inptr; - ISLOW_MULT_TYPE * quantptr; - int * wsptr; - JSAMPROW outptr; - JSAMPLE *range_limit = IDCT_range_limit(cinfo); - int ctr; - int workspace[5*5]; /* buffers data between passes */ - SHIFT_TEMPS - - /* Pass 1: process columns from input, store into work array. */ - - inptr = coef_block; - quantptr = (ISLOW_MULT_TYPE *) compptr->dct_table; - wsptr = workspace; - for (ctr = 0; ctr < 5; ctr++, inptr++, quantptr++, wsptr++) { - /* Even part */ - - tmp12 = DEQUANTIZE(inptr[DCTSIZE*0], quantptr[DCTSIZE*0]); - tmp12 <<= CONST_BITS; - /* Add fudge factor here for final descale. */ - tmp12 += ONE << (CONST_BITS-PASS1_BITS-1); - tmp0 = DEQUANTIZE(inptr[DCTSIZE*2], quantptr[DCTSIZE*2]); - tmp1 = DEQUANTIZE(inptr[DCTSIZE*4], quantptr[DCTSIZE*4]); - z1 = MULTIPLY(tmp0 + tmp1, FIX(0.790569415)); /* (c2+c4)/2 */ - z2 = MULTIPLY(tmp0 - tmp1, FIX(0.353553391)); /* (c2-c4)/2 */ - z3 = tmp12 + z2; - tmp10 = z3 + z1; - tmp11 = z3 - z1; - tmp12 -= z2 << 2; - - /* Odd part */ - - z2 = DEQUANTIZE(inptr[DCTSIZE*1], quantptr[DCTSIZE*1]); - z3 = DEQUANTIZE(inptr[DCTSIZE*3], quantptr[DCTSIZE*3]); - - z1 = MULTIPLY(z2 + z3, FIX(0.831253876)); /* c3 */ - tmp0 = z1 + MULTIPLY(z2, FIX(0.513743148)); /* c1-c3 */ - tmp1 = z1 - MULTIPLY(z3, FIX(2.176250899)); /* c1+c3 */ - - /* Final output stage */ - - wsptr[5*0] = (int) RIGHT_SHIFT(tmp10 + tmp0, CONST_BITS-PASS1_BITS); - wsptr[5*4] = (int) RIGHT_SHIFT(tmp10 - tmp0, CONST_BITS-PASS1_BITS); - wsptr[5*1] = (int) RIGHT_SHIFT(tmp11 + tmp1, CONST_BITS-PASS1_BITS); - wsptr[5*3] = (int) RIGHT_SHIFT(tmp11 - tmp1, CONST_BITS-PASS1_BITS); - wsptr[5*2] = (int) RIGHT_SHIFT(tmp12, CONST_BITS-PASS1_BITS); - } - - /* Pass 2: process 5 rows from work array, store into output array. */ - - wsptr = workspace; - for (ctr = 0; ctr < 5; ctr++) { - outptr = output_buf[ctr] + output_col; - - /* Even part */ - - /* Add fudge factor here for final descale. */ - tmp12 = (INT32) wsptr[0] + (ONE << (PASS1_BITS+2)); - tmp12 <<= CONST_BITS; - tmp0 = (INT32) wsptr[2]; - tmp1 = (INT32) wsptr[4]; - z1 = MULTIPLY(tmp0 + tmp1, FIX(0.790569415)); /* (c2+c4)/2 */ - z2 = MULTIPLY(tmp0 - tmp1, FIX(0.353553391)); /* (c2-c4)/2 */ - z3 = tmp12 + z2; - tmp10 = z3 + z1; - tmp11 = z3 - z1; - tmp12 -= z2 << 2; - - /* Odd part */ - - z2 = (INT32) wsptr[1]; - z3 = (INT32) wsptr[3]; - - z1 = MULTIPLY(z2 + z3, FIX(0.831253876)); /* c3 */ - tmp0 = z1 + MULTIPLY(z2, FIX(0.513743148)); /* c1-c3 */ - tmp1 = z1 - MULTIPLY(z3, FIX(2.176250899)); /* c1+c3 */ - - /* Final output stage */ - - outptr[0] = range_limit[(int) RIGHT_SHIFT(tmp10 + tmp0, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[4] = range_limit[(int) RIGHT_SHIFT(tmp10 - tmp0, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[1] = range_limit[(int) RIGHT_SHIFT(tmp11 + tmp1, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[3] = range_limit[(int) RIGHT_SHIFT(tmp11 - tmp1, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[2] = range_limit[(int) RIGHT_SHIFT(tmp12, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - - wsptr += 5; /* advance pointer to next row */ - } -} - - -/* - * Perform dequantization and inverse DCT on one block of coefficients, - * producing a reduced-size 4x4 output block. - * - * Optimized algorithm with 3 multiplications in the 1-D kernel. - * cK represents sqrt(2) * cos(K*pi/16) [refers to 8-point IDCT]. - */ - -GLOBAL(void) -jpeg_idct_4x4 (j_decompress_ptr cinfo, jpeg_component_info * compptr, - JCOEFPTR coef_block, - JSAMPARRAY output_buf, JDIMENSION output_col) -{ - INT32 tmp0, tmp2, tmp10, tmp12; - INT32 z1, z2, z3; - JCOEFPTR inptr; - ISLOW_MULT_TYPE * quantptr; - int * wsptr; - JSAMPROW outptr; - JSAMPLE *range_limit = IDCT_range_limit(cinfo); - int ctr; - int workspace[4*4]; /* buffers data between passes */ - SHIFT_TEMPS - - /* Pass 1: process columns from input, store into work array. */ - - inptr = coef_block; - quantptr = (ISLOW_MULT_TYPE *) compptr->dct_table; - wsptr = workspace; - for (ctr = 0; ctr < 4; ctr++, inptr++, quantptr++, wsptr++) { - /* Even part */ - - tmp0 = DEQUANTIZE(inptr[DCTSIZE*0], quantptr[DCTSIZE*0]); - tmp2 = DEQUANTIZE(inptr[DCTSIZE*2], quantptr[DCTSIZE*2]); - - tmp10 = (tmp0 + tmp2) << PASS1_BITS; - tmp12 = (tmp0 - tmp2) << PASS1_BITS; - - /* Odd part */ - /* Same rotation as in the even part of the 8x8 LL&M IDCT */ - - z2 = DEQUANTIZE(inptr[DCTSIZE*1], quantptr[DCTSIZE*1]); - z3 = DEQUANTIZE(inptr[DCTSIZE*3], quantptr[DCTSIZE*3]); - - z1 = MULTIPLY(z2 + z3, FIX_0_541196100); /* c6 */ - /* Add fudge factor here for final descale. */ - z1 += ONE << (CONST_BITS-PASS1_BITS-1); - tmp0 = RIGHT_SHIFT(z1 + MULTIPLY(z2, FIX_0_765366865), /* c2-c6 */ - CONST_BITS-PASS1_BITS); - tmp2 = RIGHT_SHIFT(z1 - MULTIPLY(z3, FIX_1_847759065), /* c2+c6 */ - CONST_BITS-PASS1_BITS); - - /* Final output stage */ - - wsptr[4*0] = (int) (tmp10 + tmp0); - wsptr[4*3] = (int) (tmp10 - tmp0); - wsptr[4*1] = (int) (tmp12 + tmp2); - wsptr[4*2] = (int) (tmp12 - tmp2); - } - - /* Pass 2: process 4 rows from work array, store into output array. */ - - wsptr = workspace; - for (ctr = 0; ctr < 4; ctr++) { - outptr = output_buf[ctr] + output_col; - - /* Even part */ - - /* Add fudge factor here for final descale. */ - tmp0 = (INT32) wsptr[0] + (ONE << (PASS1_BITS+2)); - tmp2 = (INT32) wsptr[2]; - - tmp10 = (tmp0 + tmp2) << CONST_BITS; - tmp12 = (tmp0 - tmp2) << CONST_BITS; - - /* Odd part */ - /* Same rotation as in the even part of the 8x8 LL&M IDCT */ - - z2 = (INT32) wsptr[1]; - z3 = (INT32) wsptr[3]; - - z1 = MULTIPLY(z2 + z3, FIX_0_541196100); /* c6 */ - tmp0 = z1 + MULTIPLY(z2, FIX_0_765366865); /* c2-c6 */ - tmp2 = z1 - MULTIPLY(z3, FIX_1_847759065); /* c2+c6 */ - - /* Final output stage */ - - outptr[0] = range_limit[(int) RIGHT_SHIFT(tmp10 + tmp0, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[3] = range_limit[(int) RIGHT_SHIFT(tmp10 - tmp0, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[1] = range_limit[(int) RIGHT_SHIFT(tmp12 + tmp2, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[2] = range_limit[(int) RIGHT_SHIFT(tmp12 - tmp2, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - - wsptr += 4; /* advance pointer to next row */ - } -} - - -/* - * Perform dequantization and inverse DCT on one block of coefficients, - * producing a reduced-size 3x3 output block. - * - * Optimized algorithm with 2 multiplications in the 1-D kernel. - * cK represents sqrt(2) * cos(K*pi/6). - */ - -GLOBAL(void) -jpeg_idct_3x3 (j_decompress_ptr cinfo, jpeg_component_info * compptr, - JCOEFPTR coef_block, - JSAMPARRAY output_buf, JDIMENSION output_col) -{ - INT32 tmp0, tmp2, tmp10, tmp12; - JCOEFPTR inptr; - ISLOW_MULT_TYPE * quantptr; - int * wsptr; - JSAMPROW outptr; - JSAMPLE *range_limit = IDCT_range_limit(cinfo); - int ctr; - int workspace[3*3]; /* buffers data between passes */ - SHIFT_TEMPS - - /* Pass 1: process columns from input, store into work array. */ - - inptr = coef_block; - quantptr = (ISLOW_MULT_TYPE *) compptr->dct_table; - wsptr = workspace; - for (ctr = 0; ctr < 3; ctr++, inptr++, quantptr++, wsptr++) { - /* Even part */ - - tmp0 = DEQUANTIZE(inptr[DCTSIZE*0], quantptr[DCTSIZE*0]); - tmp0 <<= CONST_BITS; - /* Add fudge factor here for final descale. */ - tmp0 += ONE << (CONST_BITS-PASS1_BITS-1); - tmp2 = DEQUANTIZE(inptr[DCTSIZE*2], quantptr[DCTSIZE*2]); - tmp12 = MULTIPLY(tmp2, FIX(0.707106781)); /* c2 */ - tmp10 = tmp0 + tmp12; - tmp2 = tmp0 - tmp12 - tmp12; - - /* Odd part */ - - tmp12 = DEQUANTIZE(inptr[DCTSIZE*1], quantptr[DCTSIZE*1]); - tmp0 = MULTIPLY(tmp12, FIX(1.224744871)); /* c1 */ - - /* Final output stage */ - - wsptr[3*0] = (int) RIGHT_SHIFT(tmp10 + tmp0, CONST_BITS-PASS1_BITS); - wsptr[3*2] = (int) RIGHT_SHIFT(tmp10 - tmp0, CONST_BITS-PASS1_BITS); - wsptr[3*1] = (int) RIGHT_SHIFT(tmp2, CONST_BITS-PASS1_BITS); - } - - /* Pass 2: process 3 rows from work array, store into output array. */ - - wsptr = workspace; - for (ctr = 0; ctr < 3; ctr++) { - outptr = output_buf[ctr] + output_col; - - /* Even part */ - - /* Add fudge factor here for final descale. */ - tmp0 = (INT32) wsptr[0] + (ONE << (PASS1_BITS+2)); - tmp0 <<= CONST_BITS; - tmp2 = (INT32) wsptr[2]; - tmp12 = MULTIPLY(tmp2, FIX(0.707106781)); /* c2 */ - tmp10 = tmp0 + tmp12; - tmp2 = tmp0 - tmp12 - tmp12; - - /* Odd part */ - - tmp12 = (INT32) wsptr[1]; - tmp0 = MULTIPLY(tmp12, FIX(1.224744871)); /* c1 */ - - /* Final output stage */ - - outptr[0] = range_limit[(int) RIGHT_SHIFT(tmp10 + tmp0, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[2] = range_limit[(int) RIGHT_SHIFT(tmp10 - tmp0, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[1] = range_limit[(int) RIGHT_SHIFT(tmp2, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - - wsptr += 3; /* advance pointer to next row */ - } -} - - -/* - * Perform dequantization and inverse DCT on one block of coefficients, - * producing a reduced-size 2x2 output block. - * - * Multiplication-less algorithm. - */ - -GLOBAL(void) -jpeg_idct_2x2 (j_decompress_ptr cinfo, jpeg_component_info * compptr, - JCOEFPTR coef_block, - JSAMPARRAY output_buf, JDIMENSION output_col) -{ - INT32 tmp0, tmp1, tmp2, tmp3, tmp4, tmp5; - ISLOW_MULT_TYPE * quantptr; - JSAMPROW outptr; - JSAMPLE *range_limit = IDCT_range_limit(cinfo); - SHIFT_TEMPS - - /* Pass 1: process columns from input. */ - - quantptr = (ISLOW_MULT_TYPE *) compptr->dct_table; - - /* Column 0 */ - tmp4 = DEQUANTIZE(coef_block[DCTSIZE*0], quantptr[DCTSIZE*0]); - tmp5 = DEQUANTIZE(coef_block[DCTSIZE*1], quantptr[DCTSIZE*1]); - /* Add fudge factor here for final descale. */ - tmp4 += ONE << 2; - - tmp0 = tmp4 + tmp5; - tmp2 = tmp4 - tmp5; - - /* Column 1 */ - tmp4 = DEQUANTIZE(coef_block[DCTSIZE*0+1], quantptr[DCTSIZE*0+1]); - tmp5 = DEQUANTIZE(coef_block[DCTSIZE*1+1], quantptr[DCTSIZE*1+1]); - - tmp1 = tmp4 + tmp5; - tmp3 = tmp4 - tmp5; - - /* Pass 2: process 2 rows, store into output array. */ - - /* Row 0 */ - outptr = output_buf[0] + output_col; - - outptr[0] = range_limit[(int) RIGHT_SHIFT(tmp0 + tmp1, 3) & RANGE_MASK]; - outptr[1] = range_limit[(int) RIGHT_SHIFT(tmp0 - tmp1, 3) & RANGE_MASK]; - - /* Row 1 */ - outptr = output_buf[1] + output_col; - - outptr[0] = range_limit[(int) RIGHT_SHIFT(tmp2 + tmp3, 3) & RANGE_MASK]; - outptr[1] = range_limit[(int) RIGHT_SHIFT(tmp2 - tmp3, 3) & RANGE_MASK]; -} - - -/* - * Perform dequantization and inverse DCT on one block of coefficients, - * producing a reduced-size 1x1 output block. - * - * We hardly need an inverse DCT routine for this: just take the - * average pixel value, which is one-eighth of the DC coefficient. - */ - -GLOBAL(void) -jpeg_idct_1x1 (j_decompress_ptr cinfo, jpeg_component_info * compptr, - JCOEFPTR coef_block, - JSAMPARRAY output_buf, JDIMENSION output_col) -{ - int dcval; - ISLOW_MULT_TYPE * quantptr; - JSAMPLE *range_limit = IDCT_range_limit(cinfo); - SHIFT_TEMPS - - /* 1x1 is trivial: just take the DC coefficient divided by 8. */ - quantptr = (ISLOW_MULT_TYPE *) compptr->dct_table; - dcval = DEQUANTIZE(coef_block[0], quantptr[0]); - dcval = (int) DESCALE((INT32) dcval, 3); - - output_buf[0][output_col] = range_limit[dcval & RANGE_MASK]; -} - - -/* - * Perform dequantization and inverse DCT on one block of coefficients, - * producing a 9x9 output block. - * - * Optimized algorithm with 10 multiplications in the 1-D kernel. - * cK represents sqrt(2) * cos(K*pi/18). - */ - -GLOBAL(void) -jpeg_idct_9x9 (j_decompress_ptr cinfo, jpeg_component_info * compptr, - JCOEFPTR coef_block, - JSAMPARRAY output_buf, JDIMENSION output_col) -{ - INT32 tmp0, tmp1, tmp2, tmp3, tmp10, tmp11, tmp12, tmp13, tmp14; - INT32 z1, z2, z3, z4; - JCOEFPTR inptr; - ISLOW_MULT_TYPE * quantptr; - int * wsptr; - JSAMPROW outptr; - JSAMPLE *range_limit = IDCT_range_limit(cinfo); - int ctr; - int workspace[8*9]; /* buffers data between passes */ - SHIFT_TEMPS - - /* Pass 1: process columns from input, store into work array. */ - - inptr = coef_block; - quantptr = (ISLOW_MULT_TYPE *) compptr->dct_table; - wsptr = workspace; - for (ctr = 0; ctr < 8; ctr++, inptr++, quantptr++, wsptr++) { - /* Even part */ - - tmp0 = DEQUANTIZE(inptr[DCTSIZE*0], quantptr[DCTSIZE*0]); - tmp0 <<= CONST_BITS; - /* Add fudge factor here for final descale. */ - tmp0 += ONE << (CONST_BITS-PASS1_BITS-1); - - z1 = DEQUANTIZE(inptr[DCTSIZE*2], quantptr[DCTSIZE*2]); - z2 = DEQUANTIZE(inptr[DCTSIZE*4], quantptr[DCTSIZE*4]); - z3 = DEQUANTIZE(inptr[DCTSIZE*6], quantptr[DCTSIZE*6]); - - tmp3 = MULTIPLY(z3, FIX(0.707106781)); /* c6 */ - tmp1 = tmp0 + tmp3; - tmp2 = tmp0 - tmp3 - tmp3; - - tmp0 = MULTIPLY(z1 - z2, FIX(0.707106781)); /* c6 */ - tmp11 = tmp2 + tmp0; - tmp14 = tmp2 - tmp0 - tmp0; - - tmp0 = MULTIPLY(z1 + z2, FIX(1.328926049)); /* c2 */ - tmp2 = MULTIPLY(z1, FIX(1.083350441)); /* c4 */ - tmp3 = MULTIPLY(z2, FIX(0.245575608)); /* c8 */ - - tmp10 = tmp1 + tmp0 - tmp3; - tmp12 = tmp1 - tmp0 + tmp2; - tmp13 = tmp1 - tmp2 + tmp3; - - /* Odd part */ - - z1 = DEQUANTIZE(inptr[DCTSIZE*1], quantptr[DCTSIZE*1]); - z2 = DEQUANTIZE(inptr[DCTSIZE*3], quantptr[DCTSIZE*3]); - z3 = DEQUANTIZE(inptr[DCTSIZE*5], quantptr[DCTSIZE*5]); - z4 = DEQUANTIZE(inptr[DCTSIZE*7], quantptr[DCTSIZE*7]); - - z2 = MULTIPLY(z2, - FIX(1.224744871)); /* -c3 */ - - tmp2 = MULTIPLY(z1 + z3, FIX(0.909038955)); /* c5 */ - tmp3 = MULTIPLY(z1 + z4, FIX(0.483689525)); /* c7 */ - tmp0 = tmp2 + tmp3 - z2; - tmp1 = MULTIPLY(z3 - z4, FIX(1.392728481)); /* c1 */ - tmp2 += z2 - tmp1; - tmp3 += z2 + tmp1; - tmp1 = MULTIPLY(z1 - z3 - z4, FIX(1.224744871)); /* c3 */ - - /* Final output stage */ - - wsptr[8*0] = (int) RIGHT_SHIFT(tmp10 + tmp0, CONST_BITS-PASS1_BITS); - wsptr[8*8] = (int) RIGHT_SHIFT(tmp10 - tmp0, CONST_BITS-PASS1_BITS); - wsptr[8*1] = (int) RIGHT_SHIFT(tmp11 + tmp1, CONST_BITS-PASS1_BITS); - wsptr[8*7] = (int) RIGHT_SHIFT(tmp11 - tmp1, CONST_BITS-PASS1_BITS); - wsptr[8*2] = (int) RIGHT_SHIFT(tmp12 + tmp2, CONST_BITS-PASS1_BITS); - wsptr[8*6] = (int) RIGHT_SHIFT(tmp12 - tmp2, CONST_BITS-PASS1_BITS); - wsptr[8*3] = (int) RIGHT_SHIFT(tmp13 + tmp3, CONST_BITS-PASS1_BITS); - wsptr[8*5] = (int) RIGHT_SHIFT(tmp13 - tmp3, CONST_BITS-PASS1_BITS); - wsptr[8*4] = (int) RIGHT_SHIFT(tmp14, CONST_BITS-PASS1_BITS); - } - - /* Pass 2: process 9 rows from work array, store into output array. */ - - wsptr = workspace; - for (ctr = 0; ctr < 9; ctr++) { - outptr = output_buf[ctr] + output_col; - - /* Even part */ - - /* Add fudge factor here for final descale. */ - tmp0 = (INT32) wsptr[0] + (ONE << (PASS1_BITS+2)); - tmp0 <<= CONST_BITS; - - z1 = (INT32) wsptr[2]; - z2 = (INT32) wsptr[4]; - z3 = (INT32) wsptr[6]; - - tmp3 = MULTIPLY(z3, FIX(0.707106781)); /* c6 */ - tmp1 = tmp0 + tmp3; - tmp2 = tmp0 - tmp3 - tmp3; - - tmp0 = MULTIPLY(z1 - z2, FIX(0.707106781)); /* c6 */ - tmp11 = tmp2 + tmp0; - tmp14 = tmp2 - tmp0 - tmp0; - - tmp0 = MULTIPLY(z1 + z2, FIX(1.328926049)); /* c2 */ - tmp2 = MULTIPLY(z1, FIX(1.083350441)); /* c4 */ - tmp3 = MULTIPLY(z2, FIX(0.245575608)); /* c8 */ - - tmp10 = tmp1 + tmp0 - tmp3; - tmp12 = tmp1 - tmp0 + tmp2; - tmp13 = tmp1 - tmp2 + tmp3; - - /* Odd part */ - - z1 = (INT32) wsptr[1]; - z2 = (INT32) wsptr[3]; - z3 = (INT32) wsptr[5]; - z4 = (INT32) wsptr[7]; - - z2 = MULTIPLY(z2, - FIX(1.224744871)); /* -c3 */ - - tmp2 = MULTIPLY(z1 + z3, FIX(0.909038955)); /* c5 */ - tmp3 = MULTIPLY(z1 + z4, FIX(0.483689525)); /* c7 */ - tmp0 = tmp2 + tmp3 - z2; - tmp1 = MULTIPLY(z3 - z4, FIX(1.392728481)); /* c1 */ - tmp2 += z2 - tmp1; - tmp3 += z2 + tmp1; - tmp1 = MULTIPLY(z1 - z3 - z4, FIX(1.224744871)); /* c3 */ - - /* Final output stage */ - - outptr[0] = range_limit[(int) RIGHT_SHIFT(tmp10 + tmp0, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[8] = range_limit[(int) RIGHT_SHIFT(tmp10 - tmp0, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[1] = range_limit[(int) RIGHT_SHIFT(tmp11 + tmp1, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[7] = range_limit[(int) RIGHT_SHIFT(tmp11 - tmp1, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[2] = range_limit[(int) RIGHT_SHIFT(tmp12 + tmp2, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[6] = range_limit[(int) RIGHT_SHIFT(tmp12 - tmp2, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[3] = range_limit[(int) RIGHT_SHIFT(tmp13 + tmp3, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[5] = range_limit[(int) RIGHT_SHIFT(tmp13 - tmp3, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[4] = range_limit[(int) RIGHT_SHIFT(tmp14, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - - wsptr += 8; /* advance pointer to next row */ - } -} - - -/* - * Perform dequantization and inverse DCT on one block of coefficients, - * producing a 10x10 output block. - * - * Optimized algorithm with 12 multiplications in the 1-D kernel. - * cK represents sqrt(2) * cos(K*pi/20). - */ - -GLOBAL(void) -jpeg_idct_10x10 (j_decompress_ptr cinfo, jpeg_component_info * compptr, - JCOEFPTR coef_block, - JSAMPARRAY output_buf, JDIMENSION output_col) -{ - INT32 tmp10, tmp11, tmp12, tmp13, tmp14; - INT32 tmp20, tmp21, tmp22, tmp23, tmp24; - INT32 z1, z2, z3, z4, z5; - JCOEFPTR inptr; - ISLOW_MULT_TYPE * quantptr; - int * wsptr; - JSAMPROW outptr; - JSAMPLE *range_limit = IDCT_range_limit(cinfo); - int ctr; - int workspace[8*10]; /* buffers data between passes */ - SHIFT_TEMPS - - /* Pass 1: process columns from input, store into work array. */ - - inptr = coef_block; - quantptr = (ISLOW_MULT_TYPE *) compptr->dct_table; - wsptr = workspace; - for (ctr = 0; ctr < 8; ctr++, inptr++, quantptr++, wsptr++) { - /* Even part */ - - z3 = DEQUANTIZE(inptr[DCTSIZE*0], quantptr[DCTSIZE*0]); - z3 <<= CONST_BITS; - /* Add fudge factor here for final descale. */ - z3 += ONE << (CONST_BITS-PASS1_BITS-1); - z4 = DEQUANTIZE(inptr[DCTSIZE*4], quantptr[DCTSIZE*4]); - z1 = MULTIPLY(z4, FIX(1.144122806)); /* c4 */ - z2 = MULTIPLY(z4, FIX(0.437016024)); /* c8 */ - tmp10 = z3 + z1; - tmp11 = z3 - z2; - - tmp22 = RIGHT_SHIFT(z3 - ((z1 - z2) << 1), /* c0 = (c4-c8)*2 */ - CONST_BITS-PASS1_BITS); - - z2 = DEQUANTIZE(inptr[DCTSIZE*2], quantptr[DCTSIZE*2]); - z3 = DEQUANTIZE(inptr[DCTSIZE*6], quantptr[DCTSIZE*6]); - - z1 = MULTIPLY(z2 + z3, FIX(0.831253876)); /* c6 */ - tmp12 = z1 + MULTIPLY(z2, FIX(0.513743148)); /* c2-c6 */ - tmp13 = z1 - MULTIPLY(z3, FIX(2.176250899)); /* c2+c6 */ - - tmp20 = tmp10 + tmp12; - tmp24 = tmp10 - tmp12; - tmp21 = tmp11 + tmp13; - tmp23 = tmp11 - tmp13; - - /* Odd part */ - - z1 = DEQUANTIZE(inptr[DCTSIZE*1], quantptr[DCTSIZE*1]); - z2 = DEQUANTIZE(inptr[DCTSIZE*3], quantptr[DCTSIZE*3]); - z3 = DEQUANTIZE(inptr[DCTSIZE*5], quantptr[DCTSIZE*5]); - z4 = DEQUANTIZE(inptr[DCTSIZE*7], quantptr[DCTSIZE*7]); - - tmp11 = z2 + z4; - tmp13 = z2 - z4; - - tmp12 = MULTIPLY(tmp13, FIX(0.309016994)); /* (c3-c7)/2 */ - z5 = z3 << CONST_BITS; - - z2 = MULTIPLY(tmp11, FIX(0.951056516)); /* (c3+c7)/2 */ - z4 = z5 + tmp12; - - tmp10 = MULTIPLY(z1, FIX(1.396802247)) + z2 + z4; /* c1 */ - tmp14 = MULTIPLY(z1, FIX(0.221231742)) - z2 + z4; /* c9 */ - - z2 = MULTIPLY(tmp11, FIX(0.587785252)); /* (c1-c9)/2 */ - z4 = z5 - tmp12 - (tmp13 << (CONST_BITS - 1)); - - tmp12 = (z1 - tmp13 - z3) << PASS1_BITS; - - tmp11 = MULTIPLY(z1, FIX(1.260073511)) - z2 - z4; /* c3 */ - tmp13 = MULTIPLY(z1, FIX(0.642039522)) - z2 + z4; /* c7 */ - - /* Final output stage */ - - wsptr[8*0] = (int) RIGHT_SHIFT(tmp20 + tmp10, CONST_BITS-PASS1_BITS); - wsptr[8*9] = (int) RIGHT_SHIFT(tmp20 - tmp10, CONST_BITS-PASS1_BITS); - wsptr[8*1] = (int) RIGHT_SHIFT(tmp21 + tmp11, CONST_BITS-PASS1_BITS); - wsptr[8*8] = (int) RIGHT_SHIFT(tmp21 - tmp11, CONST_BITS-PASS1_BITS); - wsptr[8*2] = (int) (tmp22 + tmp12); - wsptr[8*7] = (int) (tmp22 - tmp12); - wsptr[8*3] = (int) RIGHT_SHIFT(tmp23 + tmp13, CONST_BITS-PASS1_BITS); - wsptr[8*6] = (int) RIGHT_SHIFT(tmp23 - tmp13, CONST_BITS-PASS1_BITS); - wsptr[8*4] = (int) RIGHT_SHIFT(tmp24 + tmp14, CONST_BITS-PASS1_BITS); - wsptr[8*5] = (int) RIGHT_SHIFT(tmp24 - tmp14, CONST_BITS-PASS1_BITS); - } - - /* Pass 2: process 10 rows from work array, store into output array. */ - - wsptr = workspace; - for (ctr = 0; ctr < 10; ctr++) { - outptr = output_buf[ctr] + output_col; - - /* Even part */ - - /* Add fudge factor here for final descale. */ - z3 = (INT32) wsptr[0] + (ONE << (PASS1_BITS+2)); - z3 <<= CONST_BITS; - z4 = (INT32) wsptr[4]; - z1 = MULTIPLY(z4, FIX(1.144122806)); /* c4 */ - z2 = MULTIPLY(z4, FIX(0.437016024)); /* c8 */ - tmp10 = z3 + z1; - tmp11 = z3 - z2; - - tmp22 = z3 - ((z1 - z2) << 1); /* c0 = (c4-c8)*2 */ - - z2 = (INT32) wsptr[2]; - z3 = (INT32) wsptr[6]; - - z1 = MULTIPLY(z2 + z3, FIX(0.831253876)); /* c6 */ - tmp12 = z1 + MULTIPLY(z2, FIX(0.513743148)); /* c2-c6 */ - tmp13 = z1 - MULTIPLY(z3, FIX(2.176250899)); /* c2+c6 */ - - tmp20 = tmp10 + tmp12; - tmp24 = tmp10 - tmp12; - tmp21 = tmp11 + tmp13; - tmp23 = tmp11 - tmp13; - - /* Odd part */ - - z1 = (INT32) wsptr[1]; - z2 = (INT32) wsptr[3]; - z3 = (INT32) wsptr[5]; - z3 <<= CONST_BITS; - z4 = (INT32) wsptr[7]; - - tmp11 = z2 + z4; - tmp13 = z2 - z4; - - tmp12 = MULTIPLY(tmp13, FIX(0.309016994)); /* (c3-c7)/2 */ - - z2 = MULTIPLY(tmp11, FIX(0.951056516)); /* (c3+c7)/2 */ - z4 = z3 + tmp12; - - tmp10 = MULTIPLY(z1, FIX(1.396802247)) + z2 + z4; /* c1 */ - tmp14 = MULTIPLY(z1, FIX(0.221231742)) - z2 + z4; /* c9 */ - - z2 = MULTIPLY(tmp11, FIX(0.587785252)); /* (c1-c9)/2 */ - z4 = z3 - tmp12 - (tmp13 << (CONST_BITS - 1)); - - tmp12 = ((z1 - tmp13) << CONST_BITS) - z3; - - tmp11 = MULTIPLY(z1, FIX(1.260073511)) - z2 - z4; /* c3 */ - tmp13 = MULTIPLY(z1, FIX(0.642039522)) - z2 + z4; /* c7 */ - - /* Final output stage */ - - outptr[0] = range_limit[(int) RIGHT_SHIFT(tmp20 + tmp10, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[9] = range_limit[(int) RIGHT_SHIFT(tmp20 - tmp10, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[1] = range_limit[(int) RIGHT_SHIFT(tmp21 + tmp11, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[8] = range_limit[(int) RIGHT_SHIFT(tmp21 - tmp11, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[2] = range_limit[(int) RIGHT_SHIFT(tmp22 + tmp12, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[7] = range_limit[(int) RIGHT_SHIFT(tmp22 - tmp12, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[3] = range_limit[(int) RIGHT_SHIFT(tmp23 + tmp13, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[6] = range_limit[(int) RIGHT_SHIFT(tmp23 - tmp13, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[4] = range_limit[(int) RIGHT_SHIFT(tmp24 + tmp14, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[5] = range_limit[(int) RIGHT_SHIFT(tmp24 - tmp14, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - - wsptr += 8; /* advance pointer to next row */ - } -} - - -/* - * Perform dequantization and inverse DCT on one block of coefficients, - * producing a 11x11 output block. - * - * Optimized algorithm with 24 multiplications in the 1-D kernel. - * cK represents sqrt(2) * cos(K*pi/22). - */ - -GLOBAL(void) -jpeg_idct_11x11 (j_decompress_ptr cinfo, jpeg_component_info * compptr, - JCOEFPTR coef_block, - JSAMPARRAY output_buf, JDIMENSION output_col) -{ - INT32 tmp10, tmp11, tmp12, tmp13, tmp14; - INT32 tmp20, tmp21, tmp22, tmp23, tmp24, tmp25; - INT32 z1, z2, z3, z4; - JCOEFPTR inptr; - ISLOW_MULT_TYPE * quantptr; - int * wsptr; - JSAMPROW outptr; - JSAMPLE *range_limit = IDCT_range_limit(cinfo); - int ctr; - int workspace[8*11]; /* buffers data between passes */ - SHIFT_TEMPS - - /* Pass 1: process columns from input, store into work array. */ - - inptr = coef_block; - quantptr = (ISLOW_MULT_TYPE *) compptr->dct_table; - wsptr = workspace; - for (ctr = 0; ctr < 8; ctr++, inptr++, quantptr++, wsptr++) { - /* Even part */ - - tmp10 = DEQUANTIZE(inptr[DCTSIZE*0], quantptr[DCTSIZE*0]); - tmp10 <<= CONST_BITS; - /* Add fudge factor here for final descale. */ - tmp10 += ONE << (CONST_BITS-PASS1_BITS-1); - - z1 = DEQUANTIZE(inptr[DCTSIZE*2], quantptr[DCTSIZE*2]); - z2 = DEQUANTIZE(inptr[DCTSIZE*4], quantptr[DCTSIZE*4]); - z3 = DEQUANTIZE(inptr[DCTSIZE*6], quantptr[DCTSIZE*6]); - - tmp20 = MULTIPLY(z2 - z3, FIX(2.546640132)); /* c2+c4 */ - tmp23 = MULTIPLY(z2 - z1, FIX(0.430815045)); /* c2-c6 */ - z4 = z1 + z3; - tmp24 = MULTIPLY(z4, - FIX(1.155664402)); /* -(c2-c10) */ - z4 -= z2; - tmp25 = tmp10 + MULTIPLY(z4, FIX(1.356927976)); /* c2 */ - tmp21 = tmp20 + tmp23 + tmp25 - - MULTIPLY(z2, FIX(1.821790775)); /* c2+c4+c10-c6 */ - tmp20 += tmp25 + MULTIPLY(z3, FIX(2.115825087)); /* c4+c6 */ - tmp23 += tmp25 - MULTIPLY(z1, FIX(1.513598477)); /* c6+c8 */ - tmp24 += tmp25; - tmp22 = tmp24 - MULTIPLY(z3, FIX(0.788749120)); /* c8+c10 */ - tmp24 += MULTIPLY(z2, FIX(1.944413522)) - /* c2+c8 */ - MULTIPLY(z1, FIX(1.390975730)); /* c4+c10 */ - tmp25 = tmp10 - MULTIPLY(z4, FIX(1.414213562)); /* c0 */ - - /* Odd part */ - - z1 = DEQUANTIZE(inptr[DCTSIZE*1], quantptr[DCTSIZE*1]); - z2 = DEQUANTIZE(inptr[DCTSIZE*3], quantptr[DCTSIZE*3]); - z3 = DEQUANTIZE(inptr[DCTSIZE*5], quantptr[DCTSIZE*5]); - z4 = DEQUANTIZE(inptr[DCTSIZE*7], quantptr[DCTSIZE*7]); - - tmp11 = z1 + z2; - tmp14 = MULTIPLY(tmp11 + z3 + z4, FIX(0.398430003)); /* c9 */ - tmp11 = MULTIPLY(tmp11, FIX(0.887983902)); /* c3-c9 */ - tmp12 = MULTIPLY(z1 + z3, FIX(0.670361295)); /* c5-c9 */ - tmp13 = tmp14 + MULTIPLY(z1 + z4, FIX(0.366151574)); /* c7-c9 */ - tmp10 = tmp11 + tmp12 + tmp13 - - MULTIPLY(z1, FIX(0.923107866)); /* c7+c5+c3-c1-2*c9 */ - z1 = tmp14 - MULTIPLY(z2 + z3, FIX(1.163011579)); /* c7+c9 */ - tmp11 += z1 + MULTIPLY(z2, FIX(2.073276588)); /* c1+c7+3*c9-c3 */ - tmp12 += z1 - MULTIPLY(z3, FIX(1.192193623)); /* c3+c5-c7-c9 */ - z1 = MULTIPLY(z2 + z4, - FIX(1.798248910)); /* -(c1+c9) */ - tmp11 += z1; - tmp13 += z1 + MULTIPLY(z4, FIX(2.102458632)); /* c1+c5+c9-c7 */ - tmp14 += MULTIPLY(z2, - FIX(1.467221301)) + /* -(c5+c9) */ - MULTIPLY(z3, FIX(1.001388905)) - /* c1-c9 */ - MULTIPLY(z4, FIX(1.684843907)); /* c3+c9 */ - - /* Final output stage */ - - wsptr[8*0] = (int) RIGHT_SHIFT(tmp20 + tmp10, CONST_BITS-PASS1_BITS); - wsptr[8*10] = (int) RIGHT_SHIFT(tmp20 - tmp10, CONST_BITS-PASS1_BITS); - wsptr[8*1] = (int) RIGHT_SHIFT(tmp21 + tmp11, CONST_BITS-PASS1_BITS); - wsptr[8*9] = (int) RIGHT_SHIFT(tmp21 - tmp11, CONST_BITS-PASS1_BITS); - wsptr[8*2] = (int) RIGHT_SHIFT(tmp22 + tmp12, CONST_BITS-PASS1_BITS); - wsptr[8*8] = (int) RIGHT_SHIFT(tmp22 - tmp12, CONST_BITS-PASS1_BITS); - wsptr[8*3] = (int) RIGHT_SHIFT(tmp23 + tmp13, CONST_BITS-PASS1_BITS); - wsptr[8*7] = (int) RIGHT_SHIFT(tmp23 - tmp13, CONST_BITS-PASS1_BITS); - wsptr[8*4] = (int) RIGHT_SHIFT(tmp24 + tmp14, CONST_BITS-PASS1_BITS); - wsptr[8*6] = (int) RIGHT_SHIFT(tmp24 - tmp14, CONST_BITS-PASS1_BITS); - wsptr[8*5] = (int) RIGHT_SHIFT(tmp25, CONST_BITS-PASS1_BITS); - } - - /* Pass 2: process 11 rows from work array, store into output array. */ - - wsptr = workspace; - for (ctr = 0; ctr < 11; ctr++) { - outptr = output_buf[ctr] + output_col; - - /* Even part */ - - /* Add fudge factor here for final descale. */ - tmp10 = (INT32) wsptr[0] + (ONE << (PASS1_BITS+2)); - tmp10 <<= CONST_BITS; - - z1 = (INT32) wsptr[2]; - z2 = (INT32) wsptr[4]; - z3 = (INT32) wsptr[6]; - - tmp20 = MULTIPLY(z2 - z3, FIX(2.546640132)); /* c2+c4 */ - tmp23 = MULTIPLY(z2 - z1, FIX(0.430815045)); /* c2-c6 */ - z4 = z1 + z3; - tmp24 = MULTIPLY(z4, - FIX(1.155664402)); /* -(c2-c10) */ - z4 -= z2; - tmp25 = tmp10 + MULTIPLY(z4, FIX(1.356927976)); /* c2 */ - tmp21 = tmp20 + tmp23 + tmp25 - - MULTIPLY(z2, FIX(1.821790775)); /* c2+c4+c10-c6 */ - tmp20 += tmp25 + MULTIPLY(z3, FIX(2.115825087)); /* c4+c6 */ - tmp23 += tmp25 - MULTIPLY(z1, FIX(1.513598477)); /* c6+c8 */ - tmp24 += tmp25; - tmp22 = tmp24 - MULTIPLY(z3, FIX(0.788749120)); /* c8+c10 */ - tmp24 += MULTIPLY(z2, FIX(1.944413522)) - /* c2+c8 */ - MULTIPLY(z1, FIX(1.390975730)); /* c4+c10 */ - tmp25 = tmp10 - MULTIPLY(z4, FIX(1.414213562)); /* c0 */ - - /* Odd part */ - - z1 = (INT32) wsptr[1]; - z2 = (INT32) wsptr[3]; - z3 = (INT32) wsptr[5]; - z4 = (INT32) wsptr[7]; - - tmp11 = z1 + z2; - tmp14 = MULTIPLY(tmp11 + z3 + z4, FIX(0.398430003)); /* c9 */ - tmp11 = MULTIPLY(tmp11, FIX(0.887983902)); /* c3-c9 */ - tmp12 = MULTIPLY(z1 + z3, FIX(0.670361295)); /* c5-c9 */ - tmp13 = tmp14 + MULTIPLY(z1 + z4, FIX(0.366151574)); /* c7-c9 */ - tmp10 = tmp11 + tmp12 + tmp13 - - MULTIPLY(z1, FIX(0.923107866)); /* c7+c5+c3-c1-2*c9 */ - z1 = tmp14 - MULTIPLY(z2 + z3, FIX(1.163011579)); /* c7+c9 */ - tmp11 += z1 + MULTIPLY(z2, FIX(2.073276588)); /* c1+c7+3*c9-c3 */ - tmp12 += z1 - MULTIPLY(z3, FIX(1.192193623)); /* c3+c5-c7-c9 */ - z1 = MULTIPLY(z2 + z4, - FIX(1.798248910)); /* -(c1+c9) */ - tmp11 += z1; - tmp13 += z1 + MULTIPLY(z4, FIX(2.102458632)); /* c1+c5+c9-c7 */ - tmp14 += MULTIPLY(z2, - FIX(1.467221301)) + /* -(c5+c9) */ - MULTIPLY(z3, FIX(1.001388905)) - /* c1-c9 */ - MULTIPLY(z4, FIX(1.684843907)); /* c3+c9 */ - - /* Final output stage */ - - outptr[0] = range_limit[(int) RIGHT_SHIFT(tmp20 + tmp10, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[10] = range_limit[(int) RIGHT_SHIFT(tmp20 - tmp10, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[1] = range_limit[(int) RIGHT_SHIFT(tmp21 + tmp11, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[9] = range_limit[(int) RIGHT_SHIFT(tmp21 - tmp11, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[2] = range_limit[(int) RIGHT_SHIFT(tmp22 + tmp12, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[8] = range_limit[(int) RIGHT_SHIFT(tmp22 - tmp12, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[3] = range_limit[(int) RIGHT_SHIFT(tmp23 + tmp13, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[7] = range_limit[(int) RIGHT_SHIFT(tmp23 - tmp13, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[4] = range_limit[(int) RIGHT_SHIFT(tmp24 + tmp14, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[6] = range_limit[(int) RIGHT_SHIFT(tmp24 - tmp14, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[5] = range_limit[(int) RIGHT_SHIFT(tmp25, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - - wsptr += 8; /* advance pointer to next row */ - } -} - - -/* - * Perform dequantization and inverse DCT on one block of coefficients, - * producing a 12x12 output block. - * - * Optimized algorithm with 15 multiplications in the 1-D kernel. - * cK represents sqrt(2) * cos(K*pi/24). - */ - -GLOBAL(void) -jpeg_idct_12x12 (j_decompress_ptr cinfo, jpeg_component_info * compptr, - JCOEFPTR coef_block, - JSAMPARRAY output_buf, JDIMENSION output_col) -{ - INT32 tmp10, tmp11, tmp12, tmp13, tmp14, tmp15; - INT32 tmp20, tmp21, tmp22, tmp23, tmp24, tmp25; - INT32 z1, z2, z3, z4; - JCOEFPTR inptr; - ISLOW_MULT_TYPE * quantptr; - int * wsptr; - JSAMPROW outptr; - JSAMPLE *range_limit = IDCT_range_limit(cinfo); - int ctr; - int workspace[8*12]; /* buffers data between passes */ - SHIFT_TEMPS - - /* Pass 1: process columns from input, store into work array. */ - - inptr = coef_block; - quantptr = (ISLOW_MULT_TYPE *) compptr->dct_table; - wsptr = workspace; - for (ctr = 0; ctr < 8; ctr++, inptr++, quantptr++, wsptr++) { - /* Even part */ - - z3 = DEQUANTIZE(inptr[DCTSIZE*0], quantptr[DCTSIZE*0]); - z3 <<= CONST_BITS; - /* Add fudge factor here for final descale. */ - z3 += ONE << (CONST_BITS-PASS1_BITS-1); - - z4 = DEQUANTIZE(inptr[DCTSIZE*4], quantptr[DCTSIZE*4]); - z4 = MULTIPLY(z4, FIX(1.224744871)); /* c4 */ - - tmp10 = z3 + z4; - tmp11 = z3 - z4; - - z1 = DEQUANTIZE(inptr[DCTSIZE*2], quantptr[DCTSIZE*2]); - z4 = MULTIPLY(z1, FIX(1.366025404)); /* c2 */ - z1 <<= CONST_BITS; - z2 = DEQUANTIZE(inptr[DCTSIZE*6], quantptr[DCTSIZE*6]); - z2 <<= CONST_BITS; - - tmp12 = z1 - z2; - - tmp21 = z3 + tmp12; - tmp24 = z3 - tmp12; - - tmp12 = z4 + z2; - - tmp20 = tmp10 + tmp12; - tmp25 = tmp10 - tmp12; - - tmp12 = z4 - z1 - z2; - - tmp22 = tmp11 + tmp12; - tmp23 = tmp11 - tmp12; - - /* Odd part */ - - z1 = DEQUANTIZE(inptr[DCTSIZE*1], quantptr[DCTSIZE*1]); - z2 = DEQUANTIZE(inptr[DCTSIZE*3], quantptr[DCTSIZE*3]); - z3 = DEQUANTIZE(inptr[DCTSIZE*5], quantptr[DCTSIZE*5]); - z4 = DEQUANTIZE(inptr[DCTSIZE*7], quantptr[DCTSIZE*7]); - - tmp11 = MULTIPLY(z2, FIX(1.306562965)); /* c3 */ - tmp14 = MULTIPLY(z2, - FIX_0_541196100); /* -c9 */ - - tmp10 = z1 + z3; - tmp15 = MULTIPLY(tmp10 + z4, FIX(0.860918669)); /* c7 */ - tmp12 = tmp15 + MULTIPLY(tmp10, FIX(0.261052384)); /* c5-c7 */ - tmp10 = tmp12 + tmp11 + MULTIPLY(z1, FIX(0.280143716)); /* c1-c5 */ - tmp13 = MULTIPLY(z3 + z4, - FIX(1.045510580)); /* -(c7+c11) */ - tmp12 += tmp13 + tmp14 - MULTIPLY(z3, FIX(1.478575242)); /* c1+c5-c7-c11 */ - tmp13 += tmp15 - tmp11 + MULTIPLY(z4, FIX(1.586706681)); /* c1+c11 */ - tmp15 += tmp14 - MULTIPLY(z1, FIX(0.676326758)) - /* c7-c11 */ - MULTIPLY(z4, FIX(1.982889723)); /* c5+c7 */ - - z1 -= z4; - z2 -= z3; - z3 = MULTIPLY(z1 + z2, FIX_0_541196100); /* c9 */ - tmp11 = z3 + MULTIPLY(z1, FIX_0_765366865); /* c3-c9 */ - tmp14 = z3 - MULTIPLY(z2, FIX_1_847759065); /* c3+c9 */ - - /* Final output stage */ - - wsptr[8*0] = (int) RIGHT_SHIFT(tmp20 + tmp10, CONST_BITS-PASS1_BITS); - wsptr[8*11] = (int) RIGHT_SHIFT(tmp20 - tmp10, CONST_BITS-PASS1_BITS); - wsptr[8*1] = (int) RIGHT_SHIFT(tmp21 + tmp11, CONST_BITS-PASS1_BITS); - wsptr[8*10] = (int) RIGHT_SHIFT(tmp21 - tmp11, CONST_BITS-PASS1_BITS); - wsptr[8*2] = (int) RIGHT_SHIFT(tmp22 + tmp12, CONST_BITS-PASS1_BITS); - wsptr[8*9] = (int) RIGHT_SHIFT(tmp22 - tmp12, CONST_BITS-PASS1_BITS); - wsptr[8*3] = (int) RIGHT_SHIFT(tmp23 + tmp13, CONST_BITS-PASS1_BITS); - wsptr[8*8] = (int) RIGHT_SHIFT(tmp23 - tmp13, CONST_BITS-PASS1_BITS); - wsptr[8*4] = (int) RIGHT_SHIFT(tmp24 + tmp14, CONST_BITS-PASS1_BITS); - wsptr[8*7] = (int) RIGHT_SHIFT(tmp24 - tmp14, CONST_BITS-PASS1_BITS); - wsptr[8*5] = (int) RIGHT_SHIFT(tmp25 + tmp15, CONST_BITS-PASS1_BITS); - wsptr[8*6] = (int) RIGHT_SHIFT(tmp25 - tmp15, CONST_BITS-PASS1_BITS); - } - - /* Pass 2: process 12 rows from work array, store into output array. */ - - wsptr = workspace; - for (ctr = 0; ctr < 12; ctr++) { - outptr = output_buf[ctr] + output_col; - - /* Even part */ - - /* Add fudge factor here for final descale. */ - z3 = (INT32) wsptr[0] + (ONE << (PASS1_BITS+2)); - z3 <<= CONST_BITS; - - z4 = (INT32) wsptr[4]; - z4 = MULTIPLY(z4, FIX(1.224744871)); /* c4 */ - - tmp10 = z3 + z4; - tmp11 = z3 - z4; - - z1 = (INT32) wsptr[2]; - z4 = MULTIPLY(z1, FIX(1.366025404)); /* c2 */ - z1 <<= CONST_BITS; - z2 = (INT32) wsptr[6]; - z2 <<= CONST_BITS; - - tmp12 = z1 - z2; - - tmp21 = z3 + tmp12; - tmp24 = z3 - tmp12; - - tmp12 = z4 + z2; - - tmp20 = tmp10 + tmp12; - tmp25 = tmp10 - tmp12; - - tmp12 = z4 - z1 - z2; - - tmp22 = tmp11 + tmp12; - tmp23 = tmp11 - tmp12; - - /* Odd part */ - - z1 = (INT32) wsptr[1]; - z2 = (INT32) wsptr[3]; - z3 = (INT32) wsptr[5]; - z4 = (INT32) wsptr[7]; - - tmp11 = MULTIPLY(z2, FIX(1.306562965)); /* c3 */ - tmp14 = MULTIPLY(z2, - FIX_0_541196100); /* -c9 */ - - tmp10 = z1 + z3; - tmp15 = MULTIPLY(tmp10 + z4, FIX(0.860918669)); /* c7 */ - tmp12 = tmp15 + MULTIPLY(tmp10, FIX(0.261052384)); /* c5-c7 */ - tmp10 = tmp12 + tmp11 + MULTIPLY(z1, FIX(0.280143716)); /* c1-c5 */ - tmp13 = MULTIPLY(z3 + z4, - FIX(1.045510580)); /* -(c7+c11) */ - tmp12 += tmp13 + tmp14 - MULTIPLY(z3, FIX(1.478575242)); /* c1+c5-c7-c11 */ - tmp13 += tmp15 - tmp11 + MULTIPLY(z4, FIX(1.586706681)); /* c1+c11 */ - tmp15 += tmp14 - MULTIPLY(z1, FIX(0.676326758)) - /* c7-c11 */ - MULTIPLY(z4, FIX(1.982889723)); /* c5+c7 */ - - z1 -= z4; - z2 -= z3; - z3 = MULTIPLY(z1 + z2, FIX_0_541196100); /* c9 */ - tmp11 = z3 + MULTIPLY(z1, FIX_0_765366865); /* c3-c9 */ - tmp14 = z3 - MULTIPLY(z2, FIX_1_847759065); /* c3+c9 */ - - /* Final output stage */ - - outptr[0] = range_limit[(int) RIGHT_SHIFT(tmp20 + tmp10, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[11] = range_limit[(int) RIGHT_SHIFT(tmp20 - tmp10, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[1] = range_limit[(int) RIGHT_SHIFT(tmp21 + tmp11, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[10] = range_limit[(int) RIGHT_SHIFT(tmp21 - tmp11, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[2] = range_limit[(int) RIGHT_SHIFT(tmp22 + tmp12, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[9] = range_limit[(int) RIGHT_SHIFT(tmp22 - tmp12, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[3] = range_limit[(int) RIGHT_SHIFT(tmp23 + tmp13, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[8] = range_limit[(int) RIGHT_SHIFT(tmp23 - tmp13, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[4] = range_limit[(int) RIGHT_SHIFT(tmp24 + tmp14, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[7] = range_limit[(int) RIGHT_SHIFT(tmp24 - tmp14, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[5] = range_limit[(int) RIGHT_SHIFT(tmp25 + tmp15, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[6] = range_limit[(int) RIGHT_SHIFT(tmp25 - tmp15, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - - wsptr += 8; /* advance pointer to next row */ - } -} - - -/* - * Perform dequantization and inverse DCT on one block of coefficients, - * producing a 13x13 output block. - * - * Optimized algorithm with 29 multiplications in the 1-D kernel. - * cK represents sqrt(2) * cos(K*pi/26). - */ - -GLOBAL(void) -jpeg_idct_13x13 (j_decompress_ptr cinfo, jpeg_component_info * compptr, - JCOEFPTR coef_block, - JSAMPARRAY output_buf, JDIMENSION output_col) -{ - INT32 tmp10, tmp11, tmp12, tmp13, tmp14, tmp15; - INT32 tmp20, tmp21, tmp22, tmp23, tmp24, tmp25, tmp26; - INT32 z1, z2, z3, z4; - JCOEFPTR inptr; - ISLOW_MULT_TYPE * quantptr; - int * wsptr; - JSAMPROW outptr; - JSAMPLE *range_limit = IDCT_range_limit(cinfo); - int ctr; - int workspace[8*13]; /* buffers data between passes */ - SHIFT_TEMPS - - /* Pass 1: process columns from input, store into work array. */ - - inptr = coef_block; - quantptr = (ISLOW_MULT_TYPE *) compptr->dct_table; - wsptr = workspace; - for (ctr = 0; ctr < 8; ctr++, inptr++, quantptr++, wsptr++) { - /* Even part */ - - z1 = DEQUANTIZE(inptr[DCTSIZE*0], quantptr[DCTSIZE*0]); - z1 <<= CONST_BITS; - /* Add fudge factor here for final descale. */ - z1 += ONE << (CONST_BITS-PASS1_BITS-1); - - z2 = DEQUANTIZE(inptr[DCTSIZE*2], quantptr[DCTSIZE*2]); - z3 = DEQUANTIZE(inptr[DCTSIZE*4], quantptr[DCTSIZE*4]); - z4 = DEQUANTIZE(inptr[DCTSIZE*6], quantptr[DCTSIZE*6]); - - tmp10 = z3 + z4; - tmp11 = z3 - z4; - - tmp12 = MULTIPLY(tmp10, FIX(1.155388986)); /* (c4+c6)/2 */ - tmp13 = MULTIPLY(tmp11, FIX(0.096834934)) + z1; /* (c4-c6)/2 */ - - tmp20 = MULTIPLY(z2, FIX(1.373119086)) + tmp12 + tmp13; /* c2 */ - tmp22 = MULTIPLY(z2, FIX(0.501487041)) - tmp12 + tmp13; /* c10 */ - - tmp12 = MULTIPLY(tmp10, FIX(0.316450131)); /* (c8-c12)/2 */ - tmp13 = MULTIPLY(tmp11, FIX(0.486914739)) + z1; /* (c8+c12)/2 */ - - tmp21 = MULTIPLY(z2, FIX(1.058554052)) - tmp12 + tmp13; /* c6 */ - tmp25 = MULTIPLY(z2, - FIX(1.252223920)) + tmp12 + tmp13; /* c4 */ - - tmp12 = MULTIPLY(tmp10, FIX(0.435816023)); /* (c2-c10)/2 */ - tmp13 = MULTIPLY(tmp11, FIX(0.937303064)) - z1; /* (c2+c10)/2 */ - - tmp23 = MULTIPLY(z2, - FIX(0.170464608)) - tmp12 - tmp13; /* c12 */ - tmp24 = MULTIPLY(z2, - FIX(0.803364869)) + tmp12 - tmp13; /* c8 */ - - tmp26 = MULTIPLY(tmp11 - z2, FIX(1.414213562)) + z1; /* c0 */ - - /* Odd part */ - - z1 = DEQUANTIZE(inptr[DCTSIZE*1], quantptr[DCTSIZE*1]); - z2 = DEQUANTIZE(inptr[DCTSIZE*3], quantptr[DCTSIZE*3]); - z3 = DEQUANTIZE(inptr[DCTSIZE*5], quantptr[DCTSIZE*5]); - z4 = DEQUANTIZE(inptr[DCTSIZE*7], quantptr[DCTSIZE*7]); - - tmp11 = MULTIPLY(z1 + z2, FIX(1.322312651)); /* c3 */ - tmp12 = MULTIPLY(z1 + z3, FIX(1.163874945)); /* c5 */ - tmp15 = z1 + z4; - tmp13 = MULTIPLY(tmp15, FIX(0.937797057)); /* c7 */ - tmp10 = tmp11 + tmp12 + tmp13 - - MULTIPLY(z1, FIX(2.020082300)); /* c7+c5+c3-c1 */ - tmp14 = MULTIPLY(z2 + z3, - FIX(0.338443458)); /* -c11 */ - tmp11 += tmp14 + MULTIPLY(z2, FIX(0.837223564)); /* c5+c9+c11-c3 */ - tmp12 += tmp14 - MULTIPLY(z3, FIX(1.572116027)); /* c1+c5-c9-c11 */ - tmp14 = MULTIPLY(z2 + z4, - FIX(1.163874945)); /* -c5 */ - tmp11 += tmp14; - tmp13 += tmp14 + MULTIPLY(z4, FIX(2.205608352)); /* c3+c5+c9-c7 */ - tmp14 = MULTIPLY(z3 + z4, - FIX(0.657217813)); /* -c9 */ - tmp12 += tmp14; - tmp13 += tmp14; - tmp15 = MULTIPLY(tmp15, FIX(0.338443458)); /* c11 */ - tmp14 = tmp15 + MULTIPLY(z1, FIX(0.318774355)) - /* c9-c11 */ - MULTIPLY(z2, FIX(0.466105296)); /* c1-c7 */ - z1 = MULTIPLY(z3 - z2, FIX(0.937797057)); /* c7 */ - tmp14 += z1; - tmp15 += z1 + MULTIPLY(z3, FIX(0.384515595)) - /* c3-c7 */ - MULTIPLY(z4, FIX(1.742345811)); /* c1+c11 */ - - /* Final output stage */ - - wsptr[8*0] = (int) RIGHT_SHIFT(tmp20 + tmp10, CONST_BITS-PASS1_BITS); - wsptr[8*12] = (int) RIGHT_SHIFT(tmp20 - tmp10, CONST_BITS-PASS1_BITS); - wsptr[8*1] = (int) RIGHT_SHIFT(tmp21 + tmp11, CONST_BITS-PASS1_BITS); - wsptr[8*11] = (int) RIGHT_SHIFT(tmp21 - tmp11, CONST_BITS-PASS1_BITS); - wsptr[8*2] = (int) RIGHT_SHIFT(tmp22 + tmp12, CONST_BITS-PASS1_BITS); - wsptr[8*10] = (int) RIGHT_SHIFT(tmp22 - tmp12, CONST_BITS-PASS1_BITS); - wsptr[8*3] = (int) RIGHT_SHIFT(tmp23 + tmp13, CONST_BITS-PASS1_BITS); - wsptr[8*9] = (int) RIGHT_SHIFT(tmp23 - tmp13, CONST_BITS-PASS1_BITS); - wsptr[8*4] = (int) RIGHT_SHIFT(tmp24 + tmp14, CONST_BITS-PASS1_BITS); - wsptr[8*8] = (int) RIGHT_SHIFT(tmp24 - tmp14, CONST_BITS-PASS1_BITS); - wsptr[8*5] = (int) RIGHT_SHIFT(tmp25 + tmp15, CONST_BITS-PASS1_BITS); - wsptr[8*7] = (int) RIGHT_SHIFT(tmp25 - tmp15, CONST_BITS-PASS1_BITS); - wsptr[8*6] = (int) RIGHT_SHIFT(tmp26, CONST_BITS-PASS1_BITS); - } - - /* Pass 2: process 13 rows from work array, store into output array. */ - - wsptr = workspace; - for (ctr = 0; ctr < 13; ctr++) { - outptr = output_buf[ctr] + output_col; - - /* Even part */ - - /* Add fudge factor here for final descale. */ - z1 = (INT32) wsptr[0] + (ONE << (PASS1_BITS+2)); - z1 <<= CONST_BITS; - - z2 = (INT32) wsptr[2]; - z3 = (INT32) wsptr[4]; - z4 = (INT32) wsptr[6]; - - tmp10 = z3 + z4; - tmp11 = z3 - z4; - - tmp12 = MULTIPLY(tmp10, FIX(1.155388986)); /* (c4+c6)/2 */ - tmp13 = MULTIPLY(tmp11, FIX(0.096834934)) + z1; /* (c4-c6)/2 */ - - tmp20 = MULTIPLY(z2, FIX(1.373119086)) + tmp12 + tmp13; /* c2 */ - tmp22 = MULTIPLY(z2, FIX(0.501487041)) - tmp12 + tmp13; /* c10 */ - - tmp12 = MULTIPLY(tmp10, FIX(0.316450131)); /* (c8-c12)/2 */ - tmp13 = MULTIPLY(tmp11, FIX(0.486914739)) + z1; /* (c8+c12)/2 */ - - tmp21 = MULTIPLY(z2, FIX(1.058554052)) - tmp12 + tmp13; /* c6 */ - tmp25 = MULTIPLY(z2, - FIX(1.252223920)) + tmp12 + tmp13; /* c4 */ - - tmp12 = MULTIPLY(tmp10, FIX(0.435816023)); /* (c2-c10)/2 */ - tmp13 = MULTIPLY(tmp11, FIX(0.937303064)) - z1; /* (c2+c10)/2 */ - - tmp23 = MULTIPLY(z2, - FIX(0.170464608)) - tmp12 - tmp13; /* c12 */ - tmp24 = MULTIPLY(z2, - FIX(0.803364869)) + tmp12 - tmp13; /* c8 */ - - tmp26 = MULTIPLY(tmp11 - z2, FIX(1.414213562)) + z1; /* c0 */ - - /* Odd part */ - - z1 = (INT32) wsptr[1]; - z2 = (INT32) wsptr[3]; - z3 = (INT32) wsptr[5]; - z4 = (INT32) wsptr[7]; - - tmp11 = MULTIPLY(z1 + z2, FIX(1.322312651)); /* c3 */ - tmp12 = MULTIPLY(z1 + z3, FIX(1.163874945)); /* c5 */ - tmp15 = z1 + z4; - tmp13 = MULTIPLY(tmp15, FIX(0.937797057)); /* c7 */ - tmp10 = tmp11 + tmp12 + tmp13 - - MULTIPLY(z1, FIX(2.020082300)); /* c7+c5+c3-c1 */ - tmp14 = MULTIPLY(z2 + z3, - FIX(0.338443458)); /* -c11 */ - tmp11 += tmp14 + MULTIPLY(z2, FIX(0.837223564)); /* c5+c9+c11-c3 */ - tmp12 += tmp14 - MULTIPLY(z3, FIX(1.572116027)); /* c1+c5-c9-c11 */ - tmp14 = MULTIPLY(z2 + z4, - FIX(1.163874945)); /* -c5 */ - tmp11 += tmp14; - tmp13 += tmp14 + MULTIPLY(z4, FIX(2.205608352)); /* c3+c5+c9-c7 */ - tmp14 = MULTIPLY(z3 + z4, - FIX(0.657217813)); /* -c9 */ - tmp12 += tmp14; - tmp13 += tmp14; - tmp15 = MULTIPLY(tmp15, FIX(0.338443458)); /* c11 */ - tmp14 = tmp15 + MULTIPLY(z1, FIX(0.318774355)) - /* c9-c11 */ - MULTIPLY(z2, FIX(0.466105296)); /* c1-c7 */ - z1 = MULTIPLY(z3 - z2, FIX(0.937797057)); /* c7 */ - tmp14 += z1; - tmp15 += z1 + MULTIPLY(z3, FIX(0.384515595)) - /* c3-c7 */ - MULTIPLY(z4, FIX(1.742345811)); /* c1+c11 */ - - /* Final output stage */ - - outptr[0] = range_limit[(int) RIGHT_SHIFT(tmp20 + tmp10, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[12] = range_limit[(int) RIGHT_SHIFT(tmp20 - tmp10, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[1] = range_limit[(int) RIGHT_SHIFT(tmp21 + tmp11, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[11] = range_limit[(int) RIGHT_SHIFT(tmp21 - tmp11, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[2] = range_limit[(int) RIGHT_SHIFT(tmp22 + tmp12, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[10] = range_limit[(int) RIGHT_SHIFT(tmp22 - tmp12, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[3] = range_limit[(int) RIGHT_SHIFT(tmp23 + tmp13, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[9] = range_limit[(int) RIGHT_SHIFT(tmp23 - tmp13, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[4] = range_limit[(int) RIGHT_SHIFT(tmp24 + tmp14, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[8] = range_limit[(int) RIGHT_SHIFT(tmp24 - tmp14, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[5] = range_limit[(int) RIGHT_SHIFT(tmp25 + tmp15, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[7] = range_limit[(int) RIGHT_SHIFT(tmp25 - tmp15, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[6] = range_limit[(int) RIGHT_SHIFT(tmp26, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - - wsptr += 8; /* advance pointer to next row */ - } -} - - -/* - * Perform dequantization and inverse DCT on one block of coefficients, - * producing a 14x14 output block. - * - * Optimized algorithm with 20 multiplications in the 1-D kernel. - * cK represents sqrt(2) * cos(K*pi/28). - */ - -GLOBAL(void) -jpeg_idct_14x14 (j_decompress_ptr cinfo, jpeg_component_info * compptr, - JCOEFPTR coef_block, - JSAMPARRAY output_buf, JDIMENSION output_col) -{ - INT32 tmp10, tmp11, tmp12, tmp13, tmp14, tmp15, tmp16; - INT32 tmp20, tmp21, tmp22, tmp23, tmp24, tmp25, tmp26; - INT32 z1, z2, z3, z4; - JCOEFPTR inptr; - ISLOW_MULT_TYPE * quantptr; - int * wsptr; - JSAMPROW outptr; - JSAMPLE *range_limit = IDCT_range_limit(cinfo); - int ctr; - int workspace[8*14]; /* buffers data between passes */ - SHIFT_TEMPS - - /* Pass 1: process columns from input, store into work array. */ - - inptr = coef_block; - quantptr = (ISLOW_MULT_TYPE *) compptr->dct_table; - wsptr = workspace; - for (ctr = 0; ctr < 8; ctr++, inptr++, quantptr++, wsptr++) { - /* Even part */ - - z1 = DEQUANTIZE(inptr[DCTSIZE*0], quantptr[DCTSIZE*0]); - z1 <<= CONST_BITS; - /* Add fudge factor here for final descale. */ - z1 += ONE << (CONST_BITS-PASS1_BITS-1); - z4 = DEQUANTIZE(inptr[DCTSIZE*4], quantptr[DCTSIZE*4]); - z2 = MULTIPLY(z4, FIX(1.274162392)); /* c4 */ - z3 = MULTIPLY(z4, FIX(0.314692123)); /* c12 */ - z4 = MULTIPLY(z4, FIX(0.881747734)); /* c8 */ - - tmp10 = z1 + z2; - tmp11 = z1 + z3; - tmp12 = z1 - z4; - - tmp23 = RIGHT_SHIFT(z1 - ((z2 + z3 - z4) << 1), /* c0 = (c4+c12-c8)*2 */ - CONST_BITS-PASS1_BITS); - - z1 = DEQUANTIZE(inptr[DCTSIZE*2], quantptr[DCTSIZE*2]); - z2 = DEQUANTIZE(inptr[DCTSIZE*6], quantptr[DCTSIZE*6]); - - z3 = MULTIPLY(z1 + z2, FIX(1.105676686)); /* c6 */ - - tmp13 = z3 + MULTIPLY(z1, FIX(0.273079590)); /* c2-c6 */ - tmp14 = z3 - MULTIPLY(z2, FIX(1.719280954)); /* c6+c10 */ - tmp15 = MULTIPLY(z1, FIX(0.613604268)) - /* c10 */ - MULTIPLY(z2, FIX(1.378756276)); /* c2 */ - - tmp20 = tmp10 + tmp13; - tmp26 = tmp10 - tmp13; - tmp21 = tmp11 + tmp14; - tmp25 = tmp11 - tmp14; - tmp22 = tmp12 + tmp15; - tmp24 = tmp12 - tmp15; - - /* Odd part */ - - z1 = DEQUANTIZE(inptr[DCTSIZE*1], quantptr[DCTSIZE*1]); - z2 = DEQUANTIZE(inptr[DCTSIZE*3], quantptr[DCTSIZE*3]); - z3 = DEQUANTIZE(inptr[DCTSIZE*5], quantptr[DCTSIZE*5]); - z4 = DEQUANTIZE(inptr[DCTSIZE*7], quantptr[DCTSIZE*7]); - tmp13 = z4 << CONST_BITS; - - tmp14 = z1 + z3; - tmp11 = MULTIPLY(z1 + z2, FIX(1.334852607)); /* c3 */ - tmp12 = MULTIPLY(tmp14, FIX(1.197448846)); /* c5 */ - tmp10 = tmp11 + tmp12 + tmp13 - MULTIPLY(z1, FIX(1.126980169)); /* c3+c5-c1 */ - tmp14 = MULTIPLY(tmp14, FIX(0.752406978)); /* c9 */ - tmp16 = tmp14 - MULTIPLY(z1, FIX(1.061150426)); /* c9+c11-c13 */ - z1 -= z2; - tmp15 = MULTIPLY(z1, FIX(0.467085129)) - tmp13; /* c11 */ - tmp16 += tmp15; - z1 += z4; - z4 = MULTIPLY(z2 + z3, - FIX(0.158341681)) - tmp13; /* -c13 */ - tmp11 += z4 - MULTIPLY(z2, FIX(0.424103948)); /* c3-c9-c13 */ - tmp12 += z4 - MULTIPLY(z3, FIX(2.373959773)); /* c3+c5-c13 */ - z4 = MULTIPLY(z3 - z2, FIX(1.405321284)); /* c1 */ - tmp14 += z4 + tmp13 - MULTIPLY(z3, FIX(1.6906431334)); /* c1+c9-c11 */ - tmp15 += z4 + MULTIPLY(z2, FIX(0.674957567)); /* c1+c11-c5 */ - - tmp13 = (z1 - z3) << PASS1_BITS; - - /* Final output stage */ - - wsptr[8*0] = (int) RIGHT_SHIFT(tmp20 + tmp10, CONST_BITS-PASS1_BITS); - wsptr[8*13] = (int) RIGHT_SHIFT(tmp20 - tmp10, CONST_BITS-PASS1_BITS); - wsptr[8*1] = (int) RIGHT_SHIFT(tmp21 + tmp11, CONST_BITS-PASS1_BITS); - wsptr[8*12] = (int) RIGHT_SHIFT(tmp21 - tmp11, CONST_BITS-PASS1_BITS); - wsptr[8*2] = (int) RIGHT_SHIFT(tmp22 + tmp12, CONST_BITS-PASS1_BITS); - wsptr[8*11] = (int) RIGHT_SHIFT(tmp22 - tmp12, CONST_BITS-PASS1_BITS); - wsptr[8*3] = (int) (tmp23 + tmp13); - wsptr[8*10] = (int) (tmp23 - tmp13); - wsptr[8*4] = (int) RIGHT_SHIFT(tmp24 + tmp14, CONST_BITS-PASS1_BITS); - wsptr[8*9] = (int) RIGHT_SHIFT(tmp24 - tmp14, CONST_BITS-PASS1_BITS); - wsptr[8*5] = (int) RIGHT_SHIFT(tmp25 + tmp15, CONST_BITS-PASS1_BITS); - wsptr[8*8] = (int) RIGHT_SHIFT(tmp25 - tmp15, CONST_BITS-PASS1_BITS); - wsptr[8*6] = (int) RIGHT_SHIFT(tmp26 + tmp16, CONST_BITS-PASS1_BITS); - wsptr[8*7] = (int) RIGHT_SHIFT(tmp26 - tmp16, CONST_BITS-PASS1_BITS); - } - - /* Pass 2: process 14 rows from work array, store into output array. */ - - wsptr = workspace; - for (ctr = 0; ctr < 14; ctr++) { - outptr = output_buf[ctr] + output_col; - - /* Even part */ - - /* Add fudge factor here for final descale. */ - z1 = (INT32) wsptr[0] + (ONE << (PASS1_BITS+2)); - z1 <<= CONST_BITS; - z4 = (INT32) wsptr[4]; - z2 = MULTIPLY(z4, FIX(1.274162392)); /* c4 */ - z3 = MULTIPLY(z4, FIX(0.314692123)); /* c12 */ - z4 = MULTIPLY(z4, FIX(0.881747734)); /* c8 */ - - tmp10 = z1 + z2; - tmp11 = z1 + z3; - tmp12 = z1 - z4; - - tmp23 = z1 - ((z2 + z3 - z4) << 1); /* c0 = (c4+c12-c8)*2 */ - - z1 = (INT32) wsptr[2]; - z2 = (INT32) wsptr[6]; - - z3 = MULTIPLY(z1 + z2, FIX(1.105676686)); /* c6 */ - - tmp13 = z3 + MULTIPLY(z1, FIX(0.273079590)); /* c2-c6 */ - tmp14 = z3 - MULTIPLY(z2, FIX(1.719280954)); /* c6+c10 */ - tmp15 = MULTIPLY(z1, FIX(0.613604268)) - /* c10 */ - MULTIPLY(z2, FIX(1.378756276)); /* c2 */ - - tmp20 = tmp10 + tmp13; - tmp26 = tmp10 - tmp13; - tmp21 = tmp11 + tmp14; - tmp25 = tmp11 - tmp14; - tmp22 = tmp12 + tmp15; - tmp24 = tmp12 - tmp15; - - /* Odd part */ - - z1 = (INT32) wsptr[1]; - z2 = (INT32) wsptr[3]; - z3 = (INT32) wsptr[5]; - z4 = (INT32) wsptr[7]; - z4 <<= CONST_BITS; - - tmp14 = z1 + z3; - tmp11 = MULTIPLY(z1 + z2, FIX(1.334852607)); /* c3 */ - tmp12 = MULTIPLY(tmp14, FIX(1.197448846)); /* c5 */ - tmp10 = tmp11 + tmp12 + z4 - MULTIPLY(z1, FIX(1.126980169)); /* c3+c5-c1 */ - tmp14 = MULTIPLY(tmp14, FIX(0.752406978)); /* c9 */ - tmp16 = tmp14 - MULTIPLY(z1, FIX(1.061150426)); /* c9+c11-c13 */ - z1 -= z2; - tmp15 = MULTIPLY(z1, FIX(0.467085129)) - z4; /* c11 */ - tmp16 += tmp15; - tmp13 = MULTIPLY(z2 + z3, - FIX(0.158341681)) - z4; /* -c13 */ - tmp11 += tmp13 - MULTIPLY(z2, FIX(0.424103948)); /* c3-c9-c13 */ - tmp12 += tmp13 - MULTIPLY(z3, FIX(2.373959773)); /* c3+c5-c13 */ - tmp13 = MULTIPLY(z3 - z2, FIX(1.405321284)); /* c1 */ - tmp14 += tmp13 + z4 - MULTIPLY(z3, FIX(1.6906431334)); /* c1+c9-c11 */ - tmp15 += tmp13 + MULTIPLY(z2, FIX(0.674957567)); /* c1+c11-c5 */ - - tmp13 = ((z1 - z3) << CONST_BITS) + z4; - - /* Final output stage */ - - outptr[0] = range_limit[(int) RIGHT_SHIFT(tmp20 + tmp10, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[13] = range_limit[(int) RIGHT_SHIFT(tmp20 - tmp10, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[1] = range_limit[(int) RIGHT_SHIFT(tmp21 + tmp11, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[12] = range_limit[(int) RIGHT_SHIFT(tmp21 - tmp11, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[2] = range_limit[(int) RIGHT_SHIFT(tmp22 + tmp12, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[11] = range_limit[(int) RIGHT_SHIFT(tmp22 - tmp12, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[3] = range_limit[(int) RIGHT_SHIFT(tmp23 + tmp13, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[10] = range_limit[(int) RIGHT_SHIFT(tmp23 - tmp13, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[4] = range_limit[(int) RIGHT_SHIFT(tmp24 + tmp14, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[9] = range_limit[(int) RIGHT_SHIFT(tmp24 - tmp14, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[5] = range_limit[(int) RIGHT_SHIFT(tmp25 + tmp15, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[8] = range_limit[(int) RIGHT_SHIFT(tmp25 - tmp15, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[6] = range_limit[(int) RIGHT_SHIFT(tmp26 + tmp16, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[7] = range_limit[(int) RIGHT_SHIFT(tmp26 - tmp16, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - - wsptr += 8; /* advance pointer to next row */ - } -} - - -/* - * Perform dequantization and inverse DCT on one block of coefficients, - * producing a 15x15 output block. - * - * Optimized algorithm with 22 multiplications in the 1-D kernel. - * cK represents sqrt(2) * cos(K*pi/30). - */ - -GLOBAL(void) -jpeg_idct_15x15 (j_decompress_ptr cinfo, jpeg_component_info * compptr, - JCOEFPTR coef_block, - JSAMPARRAY output_buf, JDIMENSION output_col) -{ - INT32 tmp10, tmp11, tmp12, tmp13, tmp14, tmp15, tmp16; - INT32 tmp20, tmp21, tmp22, tmp23, tmp24, tmp25, tmp26, tmp27; - INT32 z1, z2, z3, z4; - JCOEFPTR inptr; - ISLOW_MULT_TYPE * quantptr; - int * wsptr; - JSAMPROW outptr; - JSAMPLE *range_limit = IDCT_range_limit(cinfo); - int ctr; - int workspace[8*15]; /* buffers data between passes */ - SHIFT_TEMPS - - /* Pass 1: process columns from input, store into work array. */ - - inptr = coef_block; - quantptr = (ISLOW_MULT_TYPE *) compptr->dct_table; - wsptr = workspace; - for (ctr = 0; ctr < 8; ctr++, inptr++, quantptr++, wsptr++) { - /* Even part */ - - z1 = DEQUANTIZE(inptr[DCTSIZE*0], quantptr[DCTSIZE*0]); - z1 <<= CONST_BITS; - /* Add fudge factor here for final descale. */ - z1 += ONE << (CONST_BITS-PASS1_BITS-1); - - z2 = DEQUANTIZE(inptr[DCTSIZE*2], quantptr[DCTSIZE*2]); - z3 = DEQUANTIZE(inptr[DCTSIZE*4], quantptr[DCTSIZE*4]); - z4 = DEQUANTIZE(inptr[DCTSIZE*6], quantptr[DCTSIZE*6]); - - tmp10 = MULTIPLY(z4, FIX(0.437016024)); /* c12 */ - tmp11 = MULTIPLY(z4, FIX(1.144122806)); /* c6 */ - - tmp12 = z1 - tmp10; - tmp13 = z1 + tmp11; - z1 -= (tmp11 - tmp10) << 1; /* c0 = (c6-c12)*2 */ - - z4 = z2 - z3; - z3 += z2; - tmp10 = MULTIPLY(z3, FIX(1.337628990)); /* (c2+c4)/2 */ - tmp11 = MULTIPLY(z4, FIX(0.045680613)); /* (c2-c4)/2 */ - z2 = MULTIPLY(z2, FIX(1.439773946)); /* c4+c14 */ - - tmp20 = tmp13 + tmp10 + tmp11; - tmp23 = tmp12 - tmp10 + tmp11 + z2; - - tmp10 = MULTIPLY(z3, FIX(0.547059574)); /* (c8+c14)/2 */ - tmp11 = MULTIPLY(z4, FIX(0.399234004)); /* (c8-c14)/2 */ - - tmp25 = tmp13 - tmp10 - tmp11; - tmp26 = tmp12 + tmp10 - tmp11 - z2; - - tmp10 = MULTIPLY(z3, FIX(0.790569415)); /* (c6+c12)/2 */ - tmp11 = MULTIPLY(z4, FIX(0.353553391)); /* (c6-c12)/2 */ - - tmp21 = tmp12 + tmp10 + tmp11; - tmp24 = tmp13 - tmp10 + tmp11; - tmp11 += tmp11; - tmp22 = z1 + tmp11; /* c10 = c6-c12 */ - tmp27 = z1 - tmp11 - tmp11; /* c0 = (c6-c12)*2 */ - - /* Odd part */ - - z1 = DEQUANTIZE(inptr[DCTSIZE*1], quantptr[DCTSIZE*1]); - z2 = DEQUANTIZE(inptr[DCTSIZE*3], quantptr[DCTSIZE*3]); - z4 = DEQUANTIZE(inptr[DCTSIZE*5], quantptr[DCTSIZE*5]); - z3 = MULTIPLY(z4, FIX(1.224744871)); /* c5 */ - z4 = DEQUANTIZE(inptr[DCTSIZE*7], quantptr[DCTSIZE*7]); - - tmp13 = z2 - z4; - tmp15 = MULTIPLY(z1 + tmp13, FIX(0.831253876)); /* c9 */ - tmp11 = tmp15 + MULTIPLY(z1, FIX(0.513743148)); /* c3-c9 */ - tmp14 = tmp15 - MULTIPLY(tmp13, FIX(2.176250899)); /* c3+c9 */ - - tmp13 = MULTIPLY(z2, - FIX(0.831253876)); /* -c9 */ - tmp15 = MULTIPLY(z2, - FIX(1.344997024)); /* -c3 */ - z2 = z1 - z4; - tmp12 = z3 + MULTIPLY(z2, FIX(1.406466353)); /* c1 */ - - tmp10 = tmp12 + MULTIPLY(z4, FIX(2.457431844)) - tmp15; /* c1+c7 */ - tmp16 = tmp12 - MULTIPLY(z1, FIX(1.112434820)) + tmp13; /* c1-c13 */ - tmp12 = MULTIPLY(z2, FIX(1.224744871)) - z3; /* c5 */ - z2 = MULTIPLY(z1 + z4, FIX(0.575212477)); /* c11 */ - tmp13 += z2 + MULTIPLY(z1, FIX(0.475753014)) - z3; /* c7-c11 */ - tmp15 += z2 - MULTIPLY(z4, FIX(0.869244010)) + z3; /* c11+c13 */ - - /* Final output stage */ - - wsptr[8*0] = (int) RIGHT_SHIFT(tmp20 + tmp10, CONST_BITS-PASS1_BITS); - wsptr[8*14] = (int) RIGHT_SHIFT(tmp20 - tmp10, CONST_BITS-PASS1_BITS); - wsptr[8*1] = (int) RIGHT_SHIFT(tmp21 + tmp11, CONST_BITS-PASS1_BITS); - wsptr[8*13] = (int) RIGHT_SHIFT(tmp21 - tmp11, CONST_BITS-PASS1_BITS); - wsptr[8*2] = (int) RIGHT_SHIFT(tmp22 + tmp12, CONST_BITS-PASS1_BITS); - wsptr[8*12] = (int) RIGHT_SHIFT(tmp22 - tmp12, CONST_BITS-PASS1_BITS); - wsptr[8*3] = (int) RIGHT_SHIFT(tmp23 + tmp13, CONST_BITS-PASS1_BITS); - wsptr[8*11] = (int) RIGHT_SHIFT(tmp23 - tmp13, CONST_BITS-PASS1_BITS); - wsptr[8*4] = (int) RIGHT_SHIFT(tmp24 + tmp14, CONST_BITS-PASS1_BITS); - wsptr[8*10] = (int) RIGHT_SHIFT(tmp24 - tmp14, CONST_BITS-PASS1_BITS); - wsptr[8*5] = (int) RIGHT_SHIFT(tmp25 + tmp15, CONST_BITS-PASS1_BITS); - wsptr[8*9] = (int) RIGHT_SHIFT(tmp25 - tmp15, CONST_BITS-PASS1_BITS); - wsptr[8*6] = (int) RIGHT_SHIFT(tmp26 + tmp16, CONST_BITS-PASS1_BITS); - wsptr[8*8] = (int) RIGHT_SHIFT(tmp26 - tmp16, CONST_BITS-PASS1_BITS); - wsptr[8*7] = (int) RIGHT_SHIFT(tmp27, CONST_BITS-PASS1_BITS); - } - - /* Pass 2: process 15 rows from work array, store into output array. */ - - wsptr = workspace; - for (ctr = 0; ctr < 15; ctr++) { - outptr = output_buf[ctr] + output_col; - - /* Even part */ - - /* Add fudge factor here for final descale. */ - z1 = (INT32) wsptr[0] + (ONE << (PASS1_BITS+2)); - z1 <<= CONST_BITS; - - z2 = (INT32) wsptr[2]; - z3 = (INT32) wsptr[4]; - z4 = (INT32) wsptr[6]; - - tmp10 = MULTIPLY(z4, FIX(0.437016024)); /* c12 */ - tmp11 = MULTIPLY(z4, FIX(1.144122806)); /* c6 */ - - tmp12 = z1 - tmp10; - tmp13 = z1 + tmp11; - z1 -= (tmp11 - tmp10) << 1; /* c0 = (c6-c12)*2 */ - - z4 = z2 - z3; - z3 += z2; - tmp10 = MULTIPLY(z3, FIX(1.337628990)); /* (c2+c4)/2 */ - tmp11 = MULTIPLY(z4, FIX(0.045680613)); /* (c2-c4)/2 */ - z2 = MULTIPLY(z2, FIX(1.439773946)); /* c4+c14 */ - - tmp20 = tmp13 + tmp10 + tmp11; - tmp23 = tmp12 - tmp10 + tmp11 + z2; - - tmp10 = MULTIPLY(z3, FIX(0.547059574)); /* (c8+c14)/2 */ - tmp11 = MULTIPLY(z4, FIX(0.399234004)); /* (c8-c14)/2 */ - - tmp25 = tmp13 - tmp10 - tmp11; - tmp26 = tmp12 + tmp10 - tmp11 - z2; - - tmp10 = MULTIPLY(z3, FIX(0.790569415)); /* (c6+c12)/2 */ - tmp11 = MULTIPLY(z4, FIX(0.353553391)); /* (c6-c12)/2 */ - - tmp21 = tmp12 + tmp10 + tmp11; - tmp24 = tmp13 - tmp10 + tmp11; - tmp11 += tmp11; - tmp22 = z1 + tmp11; /* c10 = c6-c12 */ - tmp27 = z1 - tmp11 - tmp11; /* c0 = (c6-c12)*2 */ - - /* Odd part */ - - z1 = (INT32) wsptr[1]; - z2 = (INT32) wsptr[3]; - z4 = (INT32) wsptr[5]; - z3 = MULTIPLY(z4, FIX(1.224744871)); /* c5 */ - z4 = (INT32) wsptr[7]; - - tmp13 = z2 - z4; - tmp15 = MULTIPLY(z1 + tmp13, FIX(0.831253876)); /* c9 */ - tmp11 = tmp15 + MULTIPLY(z1, FIX(0.513743148)); /* c3-c9 */ - tmp14 = tmp15 - MULTIPLY(tmp13, FIX(2.176250899)); /* c3+c9 */ - - tmp13 = MULTIPLY(z2, - FIX(0.831253876)); /* -c9 */ - tmp15 = MULTIPLY(z2, - FIX(1.344997024)); /* -c3 */ - z2 = z1 - z4; - tmp12 = z3 + MULTIPLY(z2, FIX(1.406466353)); /* c1 */ - - tmp10 = tmp12 + MULTIPLY(z4, FIX(2.457431844)) - tmp15; /* c1+c7 */ - tmp16 = tmp12 - MULTIPLY(z1, FIX(1.112434820)) + tmp13; /* c1-c13 */ - tmp12 = MULTIPLY(z2, FIX(1.224744871)) - z3; /* c5 */ - z2 = MULTIPLY(z1 + z4, FIX(0.575212477)); /* c11 */ - tmp13 += z2 + MULTIPLY(z1, FIX(0.475753014)) - z3; /* c7-c11 */ - tmp15 += z2 - MULTIPLY(z4, FIX(0.869244010)) + z3; /* c11+c13 */ - - /* Final output stage */ - - outptr[0] = range_limit[(int) RIGHT_SHIFT(tmp20 + tmp10, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[14] = range_limit[(int) RIGHT_SHIFT(tmp20 - tmp10, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[1] = range_limit[(int) RIGHT_SHIFT(tmp21 + tmp11, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[13] = range_limit[(int) RIGHT_SHIFT(tmp21 - tmp11, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[2] = range_limit[(int) RIGHT_SHIFT(tmp22 + tmp12, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[12] = range_limit[(int) RIGHT_SHIFT(tmp22 - tmp12, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[3] = range_limit[(int) RIGHT_SHIFT(tmp23 + tmp13, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[11] = range_limit[(int) RIGHT_SHIFT(tmp23 - tmp13, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[4] = range_limit[(int) RIGHT_SHIFT(tmp24 + tmp14, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[10] = range_limit[(int) RIGHT_SHIFT(tmp24 - tmp14, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[5] = range_limit[(int) RIGHT_SHIFT(tmp25 + tmp15, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[9] = range_limit[(int) RIGHT_SHIFT(tmp25 - tmp15, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[6] = range_limit[(int) RIGHT_SHIFT(tmp26 + tmp16, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[8] = range_limit[(int) RIGHT_SHIFT(tmp26 - tmp16, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[7] = range_limit[(int) RIGHT_SHIFT(tmp27, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - - wsptr += 8; /* advance pointer to next row */ - } -} - - -/* - * Perform dequantization and inverse DCT on one block of coefficients, - * producing a 16x16 output block. - * - * Optimized algorithm with 28 multiplications in the 1-D kernel. - * cK represents sqrt(2) * cos(K*pi/32). - */ - -GLOBAL(void) -jpeg_idct_16x16 (j_decompress_ptr cinfo, jpeg_component_info * compptr, - JCOEFPTR coef_block, - JSAMPARRAY output_buf, JDIMENSION output_col) -{ - INT32 tmp0, tmp1, tmp2, tmp3, tmp10, tmp11, tmp12, tmp13; - INT32 tmp20, tmp21, tmp22, tmp23, tmp24, tmp25, tmp26, tmp27; - INT32 z1, z2, z3, z4; - JCOEFPTR inptr; - ISLOW_MULT_TYPE * quantptr; - int * wsptr; - JSAMPROW outptr; - JSAMPLE *range_limit = IDCT_range_limit(cinfo); - int ctr; - int workspace[8*16]; /* buffers data between passes */ - SHIFT_TEMPS - - /* Pass 1: process columns from input, store into work array. */ - - inptr = coef_block; - quantptr = (ISLOW_MULT_TYPE *) compptr->dct_table; - wsptr = workspace; - for (ctr = 0; ctr < 8; ctr++, inptr++, quantptr++, wsptr++) { - /* Even part */ - - tmp0 = DEQUANTIZE(inptr[DCTSIZE*0], quantptr[DCTSIZE*0]); - tmp0 <<= CONST_BITS; - /* Add fudge factor here for final descale. */ - tmp0 += 1 << (CONST_BITS-PASS1_BITS-1); - - z1 = DEQUANTIZE(inptr[DCTSIZE*4], quantptr[DCTSIZE*4]); - tmp1 = MULTIPLY(z1, FIX(1.306562965)); /* c4[16] = c2[8] */ - tmp2 = MULTIPLY(z1, FIX_0_541196100); /* c12[16] = c6[8] */ - - tmp10 = tmp0 + tmp1; - tmp11 = tmp0 - tmp1; - tmp12 = tmp0 + tmp2; - tmp13 = tmp0 - tmp2; - - z1 = DEQUANTIZE(inptr[DCTSIZE*2], quantptr[DCTSIZE*2]); - z2 = DEQUANTIZE(inptr[DCTSIZE*6], quantptr[DCTSIZE*6]); - z3 = z1 - z2; - z4 = MULTIPLY(z3, FIX(0.275899379)); /* c14[16] = c7[8] */ - z3 = MULTIPLY(z3, FIX(1.387039845)); /* c2[16] = c1[8] */ - - tmp0 = z3 + MULTIPLY(z2, FIX_2_562915447); /* (c6+c2)[16] = (c3+c1)[8] */ - tmp1 = z4 + MULTIPLY(z1, FIX_0_899976223); /* (c6-c14)[16] = (c3-c7)[8] */ - tmp2 = z3 - MULTIPLY(z1, FIX(0.601344887)); /* (c2-c10)[16] = (c1-c5)[8] */ - tmp3 = z4 - MULTIPLY(z2, FIX(0.509795579)); /* (c10-c14)[16] = (c5-c7)[8] */ - - tmp20 = tmp10 + tmp0; - tmp27 = tmp10 - tmp0; - tmp21 = tmp12 + tmp1; - tmp26 = tmp12 - tmp1; - tmp22 = tmp13 + tmp2; - tmp25 = tmp13 - tmp2; - tmp23 = tmp11 + tmp3; - tmp24 = tmp11 - tmp3; - - /* Odd part */ - - z1 = DEQUANTIZE(inptr[DCTSIZE*1], quantptr[DCTSIZE*1]); - z2 = DEQUANTIZE(inptr[DCTSIZE*3], quantptr[DCTSIZE*3]); - z3 = DEQUANTIZE(inptr[DCTSIZE*5], quantptr[DCTSIZE*5]); - z4 = DEQUANTIZE(inptr[DCTSIZE*7], quantptr[DCTSIZE*7]); - - tmp11 = z1 + z3; - - tmp1 = MULTIPLY(z1 + z2, FIX(1.353318001)); /* c3 */ - tmp2 = MULTIPLY(tmp11, FIX(1.247225013)); /* c5 */ - tmp3 = MULTIPLY(z1 + z4, FIX(1.093201867)); /* c7 */ - tmp10 = MULTIPLY(z1 - z4, FIX(0.897167586)); /* c9 */ - tmp11 = MULTIPLY(tmp11, FIX(0.666655658)); /* c11 */ - tmp12 = MULTIPLY(z1 - z2, FIX(0.410524528)); /* c13 */ - tmp0 = tmp1 + tmp2 + tmp3 - - MULTIPLY(z1, FIX(2.286341144)); /* c7+c5+c3-c1 */ - tmp13 = tmp10 + tmp11 + tmp12 - - MULTIPLY(z1, FIX(1.835730603)); /* c9+c11+c13-c15 */ - z1 = MULTIPLY(z2 + z3, FIX(0.138617169)); /* c15 */ - tmp1 += z1 + MULTIPLY(z2, FIX(0.071888074)); /* c9+c11-c3-c15 */ - tmp2 += z1 - MULTIPLY(z3, FIX(1.125726048)); /* c5+c7+c15-c3 */ - z1 = MULTIPLY(z3 - z2, FIX(1.407403738)); /* c1 */ - tmp11 += z1 - MULTIPLY(z3, FIX(0.766367282)); /* c1+c11-c9-c13 */ - tmp12 += z1 + MULTIPLY(z2, FIX(1.971951411)); /* c1+c5+c13-c7 */ - z2 += z4; - z1 = MULTIPLY(z2, - FIX(0.666655658)); /* -c11 */ - tmp1 += z1; - tmp3 += z1 + MULTIPLY(z4, FIX(1.065388962)); /* c3+c11+c15-c7 */ - z2 = MULTIPLY(z2, - FIX(1.247225013)); /* -c5 */ - tmp10 += z2 + MULTIPLY(z4, FIX(3.141271809)); /* c1+c5+c9-c13 */ - tmp12 += z2; - z2 = MULTIPLY(z3 + z4, - FIX(1.353318001)); /* -c3 */ - tmp2 += z2; - tmp3 += z2; - z2 = MULTIPLY(z4 - z3, FIX(0.410524528)); /* c13 */ - tmp10 += z2; - tmp11 += z2; - - /* Final output stage */ - - wsptr[8*0] = (int) RIGHT_SHIFT(tmp20 + tmp0, CONST_BITS-PASS1_BITS); - wsptr[8*15] = (int) RIGHT_SHIFT(tmp20 - tmp0, CONST_BITS-PASS1_BITS); - wsptr[8*1] = (int) RIGHT_SHIFT(tmp21 + tmp1, CONST_BITS-PASS1_BITS); - wsptr[8*14] = (int) RIGHT_SHIFT(tmp21 - tmp1, CONST_BITS-PASS1_BITS); - wsptr[8*2] = (int) RIGHT_SHIFT(tmp22 + tmp2, CONST_BITS-PASS1_BITS); - wsptr[8*13] = (int) RIGHT_SHIFT(tmp22 - tmp2, CONST_BITS-PASS1_BITS); - wsptr[8*3] = (int) RIGHT_SHIFT(tmp23 + tmp3, CONST_BITS-PASS1_BITS); - wsptr[8*12] = (int) RIGHT_SHIFT(tmp23 - tmp3, CONST_BITS-PASS1_BITS); - wsptr[8*4] = (int) RIGHT_SHIFT(tmp24 + tmp10, CONST_BITS-PASS1_BITS); - wsptr[8*11] = (int) RIGHT_SHIFT(tmp24 - tmp10, CONST_BITS-PASS1_BITS); - wsptr[8*5] = (int) RIGHT_SHIFT(tmp25 + tmp11, CONST_BITS-PASS1_BITS); - wsptr[8*10] = (int) RIGHT_SHIFT(tmp25 - tmp11, CONST_BITS-PASS1_BITS); - wsptr[8*6] = (int) RIGHT_SHIFT(tmp26 + tmp12, CONST_BITS-PASS1_BITS); - wsptr[8*9] = (int) RIGHT_SHIFT(tmp26 - tmp12, CONST_BITS-PASS1_BITS); - wsptr[8*7] = (int) RIGHT_SHIFT(tmp27 + tmp13, CONST_BITS-PASS1_BITS); - wsptr[8*8] = (int) RIGHT_SHIFT(tmp27 - tmp13, CONST_BITS-PASS1_BITS); - } - - /* Pass 2: process 16 rows from work array, store into output array. */ - - wsptr = workspace; - for (ctr = 0; ctr < 16; ctr++) { - outptr = output_buf[ctr] + output_col; - - /* Even part */ - - /* Add fudge factor here for final descale. */ - tmp0 = (INT32) wsptr[0] + (ONE << (PASS1_BITS+2)); - tmp0 <<= CONST_BITS; - - z1 = (INT32) wsptr[4]; - tmp1 = MULTIPLY(z1, FIX(1.306562965)); /* c4[16] = c2[8] */ - tmp2 = MULTIPLY(z1, FIX_0_541196100); /* c12[16] = c6[8] */ - - tmp10 = tmp0 + tmp1; - tmp11 = tmp0 - tmp1; - tmp12 = tmp0 + tmp2; - tmp13 = tmp0 - tmp2; - - z1 = (INT32) wsptr[2]; - z2 = (INT32) wsptr[6]; - z3 = z1 - z2; - z4 = MULTIPLY(z3, FIX(0.275899379)); /* c14[16] = c7[8] */ - z3 = MULTIPLY(z3, FIX(1.387039845)); /* c2[16] = c1[8] */ - - tmp0 = z3 + MULTIPLY(z2, FIX_2_562915447); /* (c6+c2)[16] = (c3+c1)[8] */ - tmp1 = z4 + MULTIPLY(z1, FIX_0_899976223); /* (c6-c14)[16] = (c3-c7)[8] */ - tmp2 = z3 - MULTIPLY(z1, FIX(0.601344887)); /* (c2-c10)[16] = (c1-c5)[8] */ - tmp3 = z4 - MULTIPLY(z2, FIX(0.509795579)); /* (c10-c14)[16] = (c5-c7)[8] */ - - tmp20 = tmp10 + tmp0; - tmp27 = tmp10 - tmp0; - tmp21 = tmp12 + tmp1; - tmp26 = tmp12 - tmp1; - tmp22 = tmp13 + tmp2; - tmp25 = tmp13 - tmp2; - tmp23 = tmp11 + tmp3; - tmp24 = tmp11 - tmp3; - - /* Odd part */ - - z1 = (INT32) wsptr[1]; - z2 = (INT32) wsptr[3]; - z3 = (INT32) wsptr[5]; - z4 = (INT32) wsptr[7]; - - tmp11 = z1 + z3; - - tmp1 = MULTIPLY(z1 + z2, FIX(1.353318001)); /* c3 */ - tmp2 = MULTIPLY(tmp11, FIX(1.247225013)); /* c5 */ - tmp3 = MULTIPLY(z1 + z4, FIX(1.093201867)); /* c7 */ - tmp10 = MULTIPLY(z1 - z4, FIX(0.897167586)); /* c9 */ - tmp11 = MULTIPLY(tmp11, FIX(0.666655658)); /* c11 */ - tmp12 = MULTIPLY(z1 - z2, FIX(0.410524528)); /* c13 */ - tmp0 = tmp1 + tmp2 + tmp3 - - MULTIPLY(z1, FIX(2.286341144)); /* c7+c5+c3-c1 */ - tmp13 = tmp10 + tmp11 + tmp12 - - MULTIPLY(z1, FIX(1.835730603)); /* c9+c11+c13-c15 */ - z1 = MULTIPLY(z2 + z3, FIX(0.138617169)); /* c15 */ - tmp1 += z1 + MULTIPLY(z2, FIX(0.071888074)); /* c9+c11-c3-c15 */ - tmp2 += z1 - MULTIPLY(z3, FIX(1.125726048)); /* c5+c7+c15-c3 */ - z1 = MULTIPLY(z3 - z2, FIX(1.407403738)); /* c1 */ - tmp11 += z1 - MULTIPLY(z3, FIX(0.766367282)); /* c1+c11-c9-c13 */ - tmp12 += z1 + MULTIPLY(z2, FIX(1.971951411)); /* c1+c5+c13-c7 */ - z2 += z4; - z1 = MULTIPLY(z2, - FIX(0.666655658)); /* -c11 */ - tmp1 += z1; - tmp3 += z1 + MULTIPLY(z4, FIX(1.065388962)); /* c3+c11+c15-c7 */ - z2 = MULTIPLY(z2, - FIX(1.247225013)); /* -c5 */ - tmp10 += z2 + MULTIPLY(z4, FIX(3.141271809)); /* c1+c5+c9-c13 */ - tmp12 += z2; - z2 = MULTIPLY(z3 + z4, - FIX(1.353318001)); /* -c3 */ - tmp2 += z2; - tmp3 += z2; - z2 = MULTIPLY(z4 - z3, FIX(0.410524528)); /* c13 */ - tmp10 += z2; - tmp11 += z2; - - /* Final output stage */ - - outptr[0] = range_limit[(int) RIGHT_SHIFT(tmp20 + tmp0, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[15] = range_limit[(int) RIGHT_SHIFT(tmp20 - tmp0, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[1] = range_limit[(int) RIGHT_SHIFT(tmp21 + tmp1, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[14] = range_limit[(int) RIGHT_SHIFT(tmp21 - tmp1, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[2] = range_limit[(int) RIGHT_SHIFT(tmp22 + tmp2, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[13] = range_limit[(int) RIGHT_SHIFT(tmp22 - tmp2, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[3] = range_limit[(int) RIGHT_SHIFT(tmp23 + tmp3, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[12] = range_limit[(int) RIGHT_SHIFT(tmp23 - tmp3, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[4] = range_limit[(int) RIGHT_SHIFT(tmp24 + tmp10, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[11] = range_limit[(int) RIGHT_SHIFT(tmp24 - tmp10, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[5] = range_limit[(int) RIGHT_SHIFT(tmp25 + tmp11, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[10] = range_limit[(int) RIGHT_SHIFT(tmp25 - tmp11, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[6] = range_limit[(int) RIGHT_SHIFT(tmp26 + tmp12, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[9] = range_limit[(int) RIGHT_SHIFT(tmp26 - tmp12, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[7] = range_limit[(int) RIGHT_SHIFT(tmp27 + tmp13, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[8] = range_limit[(int) RIGHT_SHIFT(tmp27 - tmp13, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - - wsptr += 8; /* advance pointer to next row */ - } -} - - -/* - * Perform dequantization and inverse DCT on one block of coefficients, - * producing a 16x8 output block. - * - * 8-point IDCT in pass 1 (columns), 16-point in pass 2 (rows). - */ - -GLOBAL(void) -jpeg_idct_16x8 (j_decompress_ptr cinfo, jpeg_component_info * compptr, - JCOEFPTR coef_block, - JSAMPARRAY output_buf, JDIMENSION output_col) -{ - INT32 tmp0, tmp1, tmp2, tmp3, tmp10, tmp11, tmp12, tmp13; - INT32 tmp20, tmp21, tmp22, tmp23, tmp24, tmp25, tmp26, tmp27; - INT32 z1, z2, z3, z4; - JCOEFPTR inptr; - ISLOW_MULT_TYPE * quantptr; - int * wsptr; - JSAMPROW outptr; - JSAMPLE *range_limit = IDCT_range_limit(cinfo); - int ctr; - int workspace[8*8]; /* buffers data between passes */ - SHIFT_TEMPS - - /* Pass 1: process columns from input, store into work array. */ - /* Note results are scaled up by sqrt(8) compared to a true IDCT; */ - /* furthermore, we scale the results by 2**PASS1_BITS. */ - - inptr = coef_block; - quantptr = (ISLOW_MULT_TYPE *) compptr->dct_table; - wsptr = workspace; - for (ctr = DCTSIZE; ctr > 0; ctr--) { - /* Due to quantization, we will usually find that many of the input - * coefficients are zero, especially the AC terms. We can exploit this - * by short-circuiting the IDCT calculation for any column in which all - * the AC terms are zero. In that case each output is equal to the - * DC coefficient (with scale factor as needed). - * With typical images and quantization tables, half or more of the - * column DCT calculations can be simplified this way. - */ - - if (inptr[DCTSIZE*1] == 0 && inptr[DCTSIZE*2] == 0 && - inptr[DCTSIZE*3] == 0 && inptr[DCTSIZE*4] == 0 && - inptr[DCTSIZE*5] == 0 && inptr[DCTSIZE*6] == 0 && - inptr[DCTSIZE*7] == 0) { - /* AC terms all zero */ - int dcval = DEQUANTIZE(inptr[DCTSIZE*0], quantptr[DCTSIZE*0]) << PASS1_BITS; - - wsptr[DCTSIZE*0] = dcval; - wsptr[DCTSIZE*1] = dcval; - wsptr[DCTSIZE*2] = dcval; - wsptr[DCTSIZE*3] = dcval; - wsptr[DCTSIZE*4] = dcval; - wsptr[DCTSIZE*5] = dcval; - wsptr[DCTSIZE*6] = dcval; - wsptr[DCTSIZE*7] = dcval; - - inptr++; /* advance pointers to next column */ - quantptr++; - wsptr++; - continue; - } - - /* Even part: reverse the even part of the forward DCT. */ - /* The rotator is sqrt(2)*c(-6). */ - - z2 = DEQUANTIZE(inptr[DCTSIZE*2], quantptr[DCTSIZE*2]); - z3 = DEQUANTIZE(inptr[DCTSIZE*6], quantptr[DCTSIZE*6]); - - z1 = MULTIPLY(z2 + z3, FIX_0_541196100); - tmp2 = z1 + MULTIPLY(z2, FIX_0_765366865); - tmp3 = z1 - MULTIPLY(z3, FIX_1_847759065); - - z2 = DEQUANTIZE(inptr[DCTSIZE*0], quantptr[DCTSIZE*0]); - z3 = DEQUANTIZE(inptr[DCTSIZE*4], quantptr[DCTSIZE*4]); - z2 <<= CONST_BITS; - z3 <<= CONST_BITS; - /* Add fudge factor here for final descale. */ - z2 += ONE << (CONST_BITS-PASS1_BITS-1); - - tmp0 = z2 + z3; - tmp1 = z2 - z3; - - tmp10 = tmp0 + tmp2; - tmp13 = tmp0 - tmp2; - tmp11 = tmp1 + tmp3; - tmp12 = tmp1 - tmp3; - - /* Odd part per figure 8; the matrix is unitary and hence its - * transpose is its inverse. i0..i3 are y7,y5,y3,y1 respectively. - */ - - tmp0 = DEQUANTIZE(inptr[DCTSIZE*7], quantptr[DCTSIZE*7]); - tmp1 = DEQUANTIZE(inptr[DCTSIZE*5], quantptr[DCTSIZE*5]); - tmp2 = DEQUANTIZE(inptr[DCTSIZE*3], quantptr[DCTSIZE*3]); - tmp3 = DEQUANTIZE(inptr[DCTSIZE*1], quantptr[DCTSIZE*1]); - - z2 = tmp0 + tmp2; - z3 = tmp1 + tmp3; - - z1 = MULTIPLY(z2 + z3, FIX_1_175875602); /* sqrt(2) * c3 */ - z2 = MULTIPLY(z2, - FIX_1_961570560); /* sqrt(2) * (-c3-c5) */ - z3 = MULTIPLY(z3, - FIX_0_390180644); /* sqrt(2) * (c5-c3) */ - z2 += z1; - z3 += z1; - - z1 = MULTIPLY(tmp0 + tmp3, - FIX_0_899976223); /* sqrt(2) * (c7-c3) */ - tmp0 = MULTIPLY(tmp0, FIX_0_298631336); /* sqrt(2) * (-c1+c3+c5-c7) */ - tmp3 = MULTIPLY(tmp3, FIX_1_501321110); /* sqrt(2) * ( c1+c3-c5-c7) */ - tmp0 += z1 + z2; - tmp3 += z1 + z3; - - z1 = MULTIPLY(tmp1 + tmp2, - FIX_2_562915447); /* sqrt(2) * (-c1-c3) */ - tmp1 = MULTIPLY(tmp1, FIX_2_053119869); /* sqrt(2) * ( c1+c3-c5+c7) */ - tmp2 = MULTIPLY(tmp2, FIX_3_072711026); /* sqrt(2) * ( c1+c3+c5-c7) */ - tmp1 += z1 + z3; - tmp2 += z1 + z2; - - /* Final output stage: inputs are tmp10..tmp13, tmp0..tmp3 */ - - wsptr[DCTSIZE*0] = (int) RIGHT_SHIFT(tmp10 + tmp3, CONST_BITS-PASS1_BITS); - wsptr[DCTSIZE*7] = (int) RIGHT_SHIFT(tmp10 - tmp3, CONST_BITS-PASS1_BITS); - wsptr[DCTSIZE*1] = (int) RIGHT_SHIFT(tmp11 + tmp2, CONST_BITS-PASS1_BITS); - wsptr[DCTSIZE*6] = (int) RIGHT_SHIFT(tmp11 - tmp2, CONST_BITS-PASS1_BITS); - wsptr[DCTSIZE*2] = (int) RIGHT_SHIFT(tmp12 + tmp1, CONST_BITS-PASS1_BITS); - wsptr[DCTSIZE*5] = (int) RIGHT_SHIFT(tmp12 - tmp1, CONST_BITS-PASS1_BITS); - wsptr[DCTSIZE*3] = (int) RIGHT_SHIFT(tmp13 + tmp0, CONST_BITS-PASS1_BITS); - wsptr[DCTSIZE*4] = (int) RIGHT_SHIFT(tmp13 - tmp0, CONST_BITS-PASS1_BITS); - - inptr++; /* advance pointers to next column */ - quantptr++; - wsptr++; - } - - /* Pass 2: process 8 rows from work array, store into output array. - * 16-point IDCT kernel, cK represents sqrt(2) * cos(K*pi/32). - */ - wsptr = workspace; - for (ctr = 0; ctr < 8; ctr++) { - outptr = output_buf[ctr] + output_col; - - /* Even part */ - - /* Add fudge factor here for final descale. */ - tmp0 = (INT32) wsptr[0] + (ONE << (PASS1_BITS+2)); - tmp0 <<= CONST_BITS; - - z1 = (INT32) wsptr[4]; - tmp1 = MULTIPLY(z1, FIX(1.306562965)); /* c4[16] = c2[8] */ - tmp2 = MULTIPLY(z1, FIX_0_541196100); /* c12[16] = c6[8] */ - - tmp10 = tmp0 + tmp1; - tmp11 = tmp0 - tmp1; - tmp12 = tmp0 + tmp2; - tmp13 = tmp0 - tmp2; - - z1 = (INT32) wsptr[2]; - z2 = (INT32) wsptr[6]; - z3 = z1 - z2; - z4 = MULTIPLY(z3, FIX(0.275899379)); /* c14[16] = c7[8] */ - z3 = MULTIPLY(z3, FIX(1.387039845)); /* c2[16] = c1[8] */ - - tmp0 = z3 + MULTIPLY(z2, FIX_2_562915447); /* (c6+c2)[16] = (c3+c1)[8] */ - tmp1 = z4 + MULTIPLY(z1, FIX_0_899976223); /* (c6-c14)[16] = (c3-c7)[8] */ - tmp2 = z3 - MULTIPLY(z1, FIX(0.601344887)); /* (c2-c10)[16] = (c1-c5)[8] */ - tmp3 = z4 - MULTIPLY(z2, FIX(0.509795579)); /* (c10-c14)[16] = (c5-c7)[8] */ - - tmp20 = tmp10 + tmp0; - tmp27 = tmp10 - tmp0; - tmp21 = tmp12 + tmp1; - tmp26 = tmp12 - tmp1; - tmp22 = tmp13 + tmp2; - tmp25 = tmp13 - tmp2; - tmp23 = tmp11 + tmp3; - tmp24 = tmp11 - tmp3; - - /* Odd part */ - - z1 = (INT32) wsptr[1]; - z2 = (INT32) wsptr[3]; - z3 = (INT32) wsptr[5]; - z4 = (INT32) wsptr[7]; - - tmp11 = z1 + z3; - - tmp1 = MULTIPLY(z1 + z2, FIX(1.353318001)); /* c3 */ - tmp2 = MULTIPLY(tmp11, FIX(1.247225013)); /* c5 */ - tmp3 = MULTIPLY(z1 + z4, FIX(1.093201867)); /* c7 */ - tmp10 = MULTIPLY(z1 - z4, FIX(0.897167586)); /* c9 */ - tmp11 = MULTIPLY(tmp11, FIX(0.666655658)); /* c11 */ - tmp12 = MULTIPLY(z1 - z2, FIX(0.410524528)); /* c13 */ - tmp0 = tmp1 + tmp2 + tmp3 - - MULTIPLY(z1, FIX(2.286341144)); /* c7+c5+c3-c1 */ - tmp13 = tmp10 + tmp11 + tmp12 - - MULTIPLY(z1, FIX(1.835730603)); /* c9+c11+c13-c15 */ - z1 = MULTIPLY(z2 + z3, FIX(0.138617169)); /* c15 */ - tmp1 += z1 + MULTIPLY(z2, FIX(0.071888074)); /* c9+c11-c3-c15 */ - tmp2 += z1 - MULTIPLY(z3, FIX(1.125726048)); /* c5+c7+c15-c3 */ - z1 = MULTIPLY(z3 - z2, FIX(1.407403738)); /* c1 */ - tmp11 += z1 - MULTIPLY(z3, FIX(0.766367282)); /* c1+c11-c9-c13 */ - tmp12 += z1 + MULTIPLY(z2, FIX(1.971951411)); /* c1+c5+c13-c7 */ - z2 += z4; - z1 = MULTIPLY(z2, - FIX(0.666655658)); /* -c11 */ - tmp1 += z1; - tmp3 += z1 + MULTIPLY(z4, FIX(1.065388962)); /* c3+c11+c15-c7 */ - z2 = MULTIPLY(z2, - FIX(1.247225013)); /* -c5 */ - tmp10 += z2 + MULTIPLY(z4, FIX(3.141271809)); /* c1+c5+c9-c13 */ - tmp12 += z2; - z2 = MULTIPLY(z3 + z4, - FIX(1.353318001)); /* -c3 */ - tmp2 += z2; - tmp3 += z2; - z2 = MULTIPLY(z4 - z3, FIX(0.410524528)); /* c13 */ - tmp10 += z2; - tmp11 += z2; - - /* Final output stage */ - - outptr[0] = range_limit[(int) RIGHT_SHIFT(tmp20 + tmp0, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[15] = range_limit[(int) RIGHT_SHIFT(tmp20 - tmp0, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[1] = range_limit[(int) RIGHT_SHIFT(tmp21 + tmp1, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[14] = range_limit[(int) RIGHT_SHIFT(tmp21 - tmp1, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[2] = range_limit[(int) RIGHT_SHIFT(tmp22 + tmp2, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[13] = range_limit[(int) RIGHT_SHIFT(tmp22 - tmp2, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[3] = range_limit[(int) RIGHT_SHIFT(tmp23 + tmp3, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[12] = range_limit[(int) RIGHT_SHIFT(tmp23 - tmp3, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[4] = range_limit[(int) RIGHT_SHIFT(tmp24 + tmp10, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[11] = range_limit[(int) RIGHT_SHIFT(tmp24 - tmp10, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[5] = range_limit[(int) RIGHT_SHIFT(tmp25 + tmp11, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[10] = range_limit[(int) RIGHT_SHIFT(tmp25 - tmp11, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[6] = range_limit[(int) RIGHT_SHIFT(tmp26 + tmp12, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[9] = range_limit[(int) RIGHT_SHIFT(tmp26 - tmp12, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[7] = range_limit[(int) RIGHT_SHIFT(tmp27 + tmp13, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[8] = range_limit[(int) RIGHT_SHIFT(tmp27 - tmp13, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - - wsptr += 8; /* advance pointer to next row */ - } -} - - -/* - * Perform dequantization and inverse DCT on one block of coefficients, - * producing a 14x7 output block. - * - * 7-point IDCT in pass 1 (columns), 14-point in pass 2 (rows). - */ - -GLOBAL(void) -jpeg_idct_14x7 (j_decompress_ptr cinfo, jpeg_component_info * compptr, - JCOEFPTR coef_block, - JSAMPARRAY output_buf, JDIMENSION output_col) -{ - INT32 tmp10, tmp11, tmp12, tmp13, tmp14, tmp15, tmp16; - INT32 tmp20, tmp21, tmp22, tmp23, tmp24, tmp25, tmp26; - INT32 z1, z2, z3, z4; - JCOEFPTR inptr; - ISLOW_MULT_TYPE * quantptr; - int * wsptr; - JSAMPROW outptr; - JSAMPLE *range_limit = IDCT_range_limit(cinfo); - int ctr; - int workspace[8*7]; /* buffers data between passes */ - SHIFT_TEMPS - - /* Pass 1: process columns from input, store into work array. - * 7-point IDCT kernel, cK represents sqrt(2) * cos(K*pi/14). - */ - inptr = coef_block; - quantptr = (ISLOW_MULT_TYPE *) compptr->dct_table; - wsptr = workspace; - for (ctr = 0; ctr < 8; ctr++, inptr++, quantptr++, wsptr++) { - /* Even part */ - - tmp23 = DEQUANTIZE(inptr[DCTSIZE*0], quantptr[DCTSIZE*0]); - tmp23 <<= CONST_BITS; - /* Add fudge factor here for final descale. */ - tmp23 += ONE << (CONST_BITS-PASS1_BITS-1); - - z1 = DEQUANTIZE(inptr[DCTSIZE*2], quantptr[DCTSIZE*2]); - z2 = DEQUANTIZE(inptr[DCTSIZE*4], quantptr[DCTSIZE*4]); - z3 = DEQUANTIZE(inptr[DCTSIZE*6], quantptr[DCTSIZE*6]); - - tmp20 = MULTIPLY(z2 - z3, FIX(0.881747734)); /* c4 */ - tmp22 = MULTIPLY(z1 - z2, FIX(0.314692123)); /* c6 */ - tmp21 = tmp20 + tmp22 + tmp23 - MULTIPLY(z2, FIX(1.841218003)); /* c2+c4-c6 */ - tmp10 = z1 + z3; - z2 -= tmp10; - tmp10 = MULTIPLY(tmp10, FIX(1.274162392)) + tmp23; /* c2 */ - tmp20 += tmp10 - MULTIPLY(z3, FIX(0.077722536)); /* c2-c4-c6 */ - tmp22 += tmp10 - MULTIPLY(z1, FIX(2.470602249)); /* c2+c4+c6 */ - tmp23 += MULTIPLY(z2, FIX(1.414213562)); /* c0 */ - - /* Odd part */ - - z1 = DEQUANTIZE(inptr[DCTSIZE*1], quantptr[DCTSIZE*1]); - z2 = DEQUANTIZE(inptr[DCTSIZE*3], quantptr[DCTSIZE*3]); - z3 = DEQUANTIZE(inptr[DCTSIZE*5], quantptr[DCTSIZE*5]); - - tmp11 = MULTIPLY(z1 + z2, FIX(0.935414347)); /* (c3+c1-c5)/2 */ - tmp12 = MULTIPLY(z1 - z2, FIX(0.170262339)); /* (c3+c5-c1)/2 */ - tmp10 = tmp11 - tmp12; - tmp11 += tmp12; - tmp12 = MULTIPLY(z2 + z3, - FIX(1.378756276)); /* -c1 */ - tmp11 += tmp12; - z2 = MULTIPLY(z1 + z3, FIX(0.613604268)); /* c5 */ - tmp10 += z2; - tmp12 += z2 + MULTIPLY(z3, FIX(1.870828693)); /* c3+c1-c5 */ - - /* Final output stage */ - - wsptr[8*0] = (int) RIGHT_SHIFT(tmp20 + tmp10, CONST_BITS-PASS1_BITS); - wsptr[8*6] = (int) RIGHT_SHIFT(tmp20 - tmp10, CONST_BITS-PASS1_BITS); - wsptr[8*1] = (int) RIGHT_SHIFT(tmp21 + tmp11, CONST_BITS-PASS1_BITS); - wsptr[8*5] = (int) RIGHT_SHIFT(tmp21 - tmp11, CONST_BITS-PASS1_BITS); - wsptr[8*2] = (int) RIGHT_SHIFT(tmp22 + tmp12, CONST_BITS-PASS1_BITS); - wsptr[8*4] = (int) RIGHT_SHIFT(tmp22 - tmp12, CONST_BITS-PASS1_BITS); - wsptr[8*3] = (int) RIGHT_SHIFT(tmp23, CONST_BITS-PASS1_BITS); - } - - /* Pass 2: process 7 rows from work array, store into output array. - * 14-point IDCT kernel, cK represents sqrt(2) * cos(K*pi/28). - */ - wsptr = workspace; - for (ctr = 0; ctr < 7; ctr++) { - outptr = output_buf[ctr] + output_col; - - /* Even part */ - - /* Add fudge factor here for final descale. */ - z1 = (INT32) wsptr[0] + (ONE << (PASS1_BITS+2)); - z1 <<= CONST_BITS; - z4 = (INT32) wsptr[4]; - z2 = MULTIPLY(z4, FIX(1.274162392)); /* c4 */ - z3 = MULTIPLY(z4, FIX(0.314692123)); /* c12 */ - z4 = MULTIPLY(z4, FIX(0.881747734)); /* c8 */ - - tmp10 = z1 + z2; - tmp11 = z1 + z3; - tmp12 = z1 - z4; - - tmp23 = z1 - ((z2 + z3 - z4) << 1); /* c0 = (c4+c12-c8)*2 */ - - z1 = (INT32) wsptr[2]; - z2 = (INT32) wsptr[6]; - - z3 = MULTIPLY(z1 + z2, FIX(1.105676686)); /* c6 */ - - tmp13 = z3 + MULTIPLY(z1, FIX(0.273079590)); /* c2-c6 */ - tmp14 = z3 - MULTIPLY(z2, FIX(1.719280954)); /* c6+c10 */ - tmp15 = MULTIPLY(z1, FIX(0.613604268)) - /* c10 */ - MULTIPLY(z2, FIX(1.378756276)); /* c2 */ - - tmp20 = tmp10 + tmp13; - tmp26 = tmp10 - tmp13; - tmp21 = tmp11 + tmp14; - tmp25 = tmp11 - tmp14; - tmp22 = tmp12 + tmp15; - tmp24 = tmp12 - tmp15; - - /* Odd part */ - - z1 = (INT32) wsptr[1]; - z2 = (INT32) wsptr[3]; - z3 = (INT32) wsptr[5]; - z4 = (INT32) wsptr[7]; - z4 <<= CONST_BITS; - - tmp14 = z1 + z3; - tmp11 = MULTIPLY(z1 + z2, FIX(1.334852607)); /* c3 */ - tmp12 = MULTIPLY(tmp14, FIX(1.197448846)); /* c5 */ - tmp10 = tmp11 + tmp12 + z4 - MULTIPLY(z1, FIX(1.126980169)); /* c3+c5-c1 */ - tmp14 = MULTIPLY(tmp14, FIX(0.752406978)); /* c9 */ - tmp16 = tmp14 - MULTIPLY(z1, FIX(1.061150426)); /* c9+c11-c13 */ - z1 -= z2; - tmp15 = MULTIPLY(z1, FIX(0.467085129)) - z4; /* c11 */ - tmp16 += tmp15; - tmp13 = MULTIPLY(z2 + z3, - FIX(0.158341681)) - z4; /* -c13 */ - tmp11 += tmp13 - MULTIPLY(z2, FIX(0.424103948)); /* c3-c9-c13 */ - tmp12 += tmp13 - MULTIPLY(z3, FIX(2.373959773)); /* c3+c5-c13 */ - tmp13 = MULTIPLY(z3 - z2, FIX(1.405321284)); /* c1 */ - tmp14 += tmp13 + z4 - MULTIPLY(z3, FIX(1.6906431334)); /* c1+c9-c11 */ - tmp15 += tmp13 + MULTIPLY(z2, FIX(0.674957567)); /* c1+c11-c5 */ - - tmp13 = ((z1 - z3) << CONST_BITS) + z4; - - /* Final output stage */ - - outptr[0] = range_limit[(int) RIGHT_SHIFT(tmp20 + tmp10, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[13] = range_limit[(int) RIGHT_SHIFT(tmp20 - tmp10, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[1] = range_limit[(int) RIGHT_SHIFT(tmp21 + tmp11, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[12] = range_limit[(int) RIGHT_SHIFT(tmp21 - tmp11, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[2] = range_limit[(int) RIGHT_SHIFT(tmp22 + tmp12, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[11] = range_limit[(int) RIGHT_SHIFT(tmp22 - tmp12, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[3] = range_limit[(int) RIGHT_SHIFT(tmp23 + tmp13, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[10] = range_limit[(int) RIGHT_SHIFT(tmp23 - tmp13, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[4] = range_limit[(int) RIGHT_SHIFT(tmp24 + tmp14, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[9] = range_limit[(int) RIGHT_SHIFT(tmp24 - tmp14, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[5] = range_limit[(int) RIGHT_SHIFT(tmp25 + tmp15, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[8] = range_limit[(int) RIGHT_SHIFT(tmp25 - tmp15, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[6] = range_limit[(int) RIGHT_SHIFT(tmp26 + tmp16, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[7] = range_limit[(int) RIGHT_SHIFT(tmp26 - tmp16, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - - wsptr += 8; /* advance pointer to next row */ - } -} - - -/* - * Perform dequantization and inverse DCT on one block of coefficients, - * producing a 12x6 output block. - * - * 6-point IDCT in pass 1 (columns), 12-point in pass 2 (rows). - */ - -GLOBAL(void) -jpeg_idct_12x6 (j_decompress_ptr cinfo, jpeg_component_info * compptr, - JCOEFPTR coef_block, - JSAMPARRAY output_buf, JDIMENSION output_col) -{ - INT32 tmp10, tmp11, tmp12, tmp13, tmp14, tmp15; - INT32 tmp20, tmp21, tmp22, tmp23, tmp24, tmp25; - INT32 z1, z2, z3, z4; - JCOEFPTR inptr; - ISLOW_MULT_TYPE * quantptr; - int * wsptr; - JSAMPROW outptr; - JSAMPLE *range_limit = IDCT_range_limit(cinfo); - int ctr; - int workspace[8*6]; /* buffers data between passes */ - SHIFT_TEMPS - - /* Pass 1: process columns from input, store into work array. - * 6-point IDCT kernel, cK represents sqrt(2) * cos(K*pi/12). - */ - inptr = coef_block; - quantptr = (ISLOW_MULT_TYPE *) compptr->dct_table; - wsptr = workspace; - for (ctr = 0; ctr < 8; ctr++, inptr++, quantptr++, wsptr++) { - /* Even part */ - - tmp10 = DEQUANTIZE(inptr[DCTSIZE*0], quantptr[DCTSIZE*0]); - tmp10 <<= CONST_BITS; - /* Add fudge factor here for final descale. */ - tmp10 += ONE << (CONST_BITS-PASS1_BITS-1); - tmp12 = DEQUANTIZE(inptr[DCTSIZE*4], quantptr[DCTSIZE*4]); - tmp20 = MULTIPLY(tmp12, FIX(0.707106781)); /* c4 */ - tmp11 = tmp10 + tmp20; - tmp21 = RIGHT_SHIFT(tmp10 - tmp20 - tmp20, CONST_BITS-PASS1_BITS); - tmp20 = DEQUANTIZE(inptr[DCTSIZE*2], quantptr[DCTSIZE*2]); - tmp10 = MULTIPLY(tmp20, FIX(1.224744871)); /* c2 */ - tmp20 = tmp11 + tmp10; - tmp22 = tmp11 - tmp10; - - /* Odd part */ - - z1 = DEQUANTIZE(inptr[DCTSIZE*1], quantptr[DCTSIZE*1]); - z2 = DEQUANTIZE(inptr[DCTSIZE*3], quantptr[DCTSIZE*3]); - z3 = DEQUANTIZE(inptr[DCTSIZE*5], quantptr[DCTSIZE*5]); - tmp11 = MULTIPLY(z1 + z3, FIX(0.366025404)); /* c5 */ - tmp10 = tmp11 + ((z1 + z2) << CONST_BITS); - tmp12 = tmp11 + ((z3 - z2) << CONST_BITS); - tmp11 = (z1 - z2 - z3) << PASS1_BITS; - - /* Final output stage */ - - wsptr[8*0] = (int) RIGHT_SHIFT(tmp20 + tmp10, CONST_BITS-PASS1_BITS); - wsptr[8*5] = (int) RIGHT_SHIFT(tmp20 - tmp10, CONST_BITS-PASS1_BITS); - wsptr[8*1] = (int) (tmp21 + tmp11); - wsptr[8*4] = (int) (tmp21 - tmp11); - wsptr[8*2] = (int) RIGHT_SHIFT(tmp22 + tmp12, CONST_BITS-PASS1_BITS); - wsptr[8*3] = (int) RIGHT_SHIFT(tmp22 - tmp12, CONST_BITS-PASS1_BITS); - } - - /* Pass 2: process 6 rows from work array, store into output array. - * 12-point IDCT kernel, cK represents sqrt(2) * cos(K*pi/24). - */ - wsptr = workspace; - for (ctr = 0; ctr < 6; ctr++) { - outptr = output_buf[ctr] + output_col; - - /* Even part */ - - /* Add fudge factor here for final descale. */ - z3 = (INT32) wsptr[0] + (ONE << (PASS1_BITS+2)); - z3 <<= CONST_BITS; - - z4 = (INT32) wsptr[4]; - z4 = MULTIPLY(z4, FIX(1.224744871)); /* c4 */ - - tmp10 = z3 + z4; - tmp11 = z3 - z4; - - z1 = (INT32) wsptr[2]; - z4 = MULTIPLY(z1, FIX(1.366025404)); /* c2 */ - z1 <<= CONST_BITS; - z2 = (INT32) wsptr[6]; - z2 <<= CONST_BITS; - - tmp12 = z1 - z2; - - tmp21 = z3 + tmp12; - tmp24 = z3 - tmp12; - - tmp12 = z4 + z2; - - tmp20 = tmp10 + tmp12; - tmp25 = tmp10 - tmp12; - - tmp12 = z4 - z1 - z2; - - tmp22 = tmp11 + tmp12; - tmp23 = tmp11 - tmp12; - - /* Odd part */ - - z1 = (INT32) wsptr[1]; - z2 = (INT32) wsptr[3]; - z3 = (INT32) wsptr[5]; - z4 = (INT32) wsptr[7]; - - tmp11 = MULTIPLY(z2, FIX(1.306562965)); /* c3 */ - tmp14 = MULTIPLY(z2, - FIX_0_541196100); /* -c9 */ - - tmp10 = z1 + z3; - tmp15 = MULTIPLY(tmp10 + z4, FIX(0.860918669)); /* c7 */ - tmp12 = tmp15 + MULTIPLY(tmp10, FIX(0.261052384)); /* c5-c7 */ - tmp10 = tmp12 + tmp11 + MULTIPLY(z1, FIX(0.280143716)); /* c1-c5 */ - tmp13 = MULTIPLY(z3 + z4, - FIX(1.045510580)); /* -(c7+c11) */ - tmp12 += tmp13 + tmp14 - MULTIPLY(z3, FIX(1.478575242)); /* c1+c5-c7-c11 */ - tmp13 += tmp15 - tmp11 + MULTIPLY(z4, FIX(1.586706681)); /* c1+c11 */ - tmp15 += tmp14 - MULTIPLY(z1, FIX(0.676326758)) - /* c7-c11 */ - MULTIPLY(z4, FIX(1.982889723)); /* c5+c7 */ - - z1 -= z4; - z2 -= z3; - z3 = MULTIPLY(z1 + z2, FIX_0_541196100); /* c9 */ - tmp11 = z3 + MULTIPLY(z1, FIX_0_765366865); /* c3-c9 */ - tmp14 = z3 - MULTIPLY(z2, FIX_1_847759065); /* c3+c9 */ - - /* Final output stage */ - - outptr[0] = range_limit[(int) RIGHT_SHIFT(tmp20 + tmp10, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[11] = range_limit[(int) RIGHT_SHIFT(tmp20 - tmp10, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[1] = range_limit[(int) RIGHT_SHIFT(tmp21 + tmp11, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[10] = range_limit[(int) RIGHT_SHIFT(tmp21 - tmp11, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[2] = range_limit[(int) RIGHT_SHIFT(tmp22 + tmp12, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[9] = range_limit[(int) RIGHT_SHIFT(tmp22 - tmp12, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[3] = range_limit[(int) RIGHT_SHIFT(tmp23 + tmp13, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[8] = range_limit[(int) RIGHT_SHIFT(tmp23 - tmp13, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[4] = range_limit[(int) RIGHT_SHIFT(tmp24 + tmp14, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[7] = range_limit[(int) RIGHT_SHIFT(tmp24 - tmp14, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[5] = range_limit[(int) RIGHT_SHIFT(tmp25 + tmp15, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[6] = range_limit[(int) RIGHT_SHIFT(tmp25 - tmp15, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - - wsptr += 8; /* advance pointer to next row */ - } -} - - -/* - * Perform dequantization and inverse DCT on one block of coefficients, - * producing a 10x5 output block. - * - * 5-point IDCT in pass 1 (columns), 10-point in pass 2 (rows). - */ - -GLOBAL(void) -jpeg_idct_10x5 (j_decompress_ptr cinfo, jpeg_component_info * compptr, - JCOEFPTR coef_block, - JSAMPARRAY output_buf, JDIMENSION output_col) -{ - INT32 tmp10, tmp11, tmp12, tmp13, tmp14; - INT32 tmp20, tmp21, tmp22, tmp23, tmp24; - INT32 z1, z2, z3, z4; - JCOEFPTR inptr; - ISLOW_MULT_TYPE * quantptr; - int * wsptr; - JSAMPROW outptr; - JSAMPLE *range_limit = IDCT_range_limit(cinfo); - int ctr; - int workspace[8*5]; /* buffers data between passes */ - SHIFT_TEMPS - - /* Pass 1: process columns from input, store into work array. - * 5-point IDCT kernel, cK represents sqrt(2) * cos(K*pi/10). - */ - inptr = coef_block; - quantptr = (ISLOW_MULT_TYPE *) compptr->dct_table; - wsptr = workspace; - for (ctr = 0; ctr < 8; ctr++, inptr++, quantptr++, wsptr++) { - /* Even part */ - - tmp12 = DEQUANTIZE(inptr[DCTSIZE*0], quantptr[DCTSIZE*0]); - tmp12 <<= CONST_BITS; - /* Add fudge factor here for final descale. */ - tmp12 += ONE << (CONST_BITS-PASS1_BITS-1); - tmp13 = DEQUANTIZE(inptr[DCTSIZE*2], quantptr[DCTSIZE*2]); - tmp14 = DEQUANTIZE(inptr[DCTSIZE*4], quantptr[DCTSIZE*4]); - z1 = MULTIPLY(tmp13 + tmp14, FIX(0.790569415)); /* (c2+c4)/2 */ - z2 = MULTIPLY(tmp13 - tmp14, FIX(0.353553391)); /* (c2-c4)/2 */ - z3 = tmp12 + z2; - tmp10 = z3 + z1; - tmp11 = z3 - z1; - tmp12 -= z2 << 2; - - /* Odd part */ - - z2 = DEQUANTIZE(inptr[DCTSIZE*1], quantptr[DCTSIZE*1]); - z3 = DEQUANTIZE(inptr[DCTSIZE*3], quantptr[DCTSIZE*3]); - - z1 = MULTIPLY(z2 + z3, FIX(0.831253876)); /* c3 */ - tmp13 = z1 + MULTIPLY(z2, FIX(0.513743148)); /* c1-c3 */ - tmp14 = z1 - MULTIPLY(z3, FIX(2.176250899)); /* c1+c3 */ - - /* Final output stage */ - - wsptr[8*0] = (int) RIGHT_SHIFT(tmp10 + tmp13, CONST_BITS-PASS1_BITS); - wsptr[8*4] = (int) RIGHT_SHIFT(tmp10 - tmp13, CONST_BITS-PASS1_BITS); - wsptr[8*1] = (int) RIGHT_SHIFT(tmp11 + tmp14, CONST_BITS-PASS1_BITS); - wsptr[8*3] = (int) RIGHT_SHIFT(tmp11 - tmp14, CONST_BITS-PASS1_BITS); - wsptr[8*2] = (int) RIGHT_SHIFT(tmp12, CONST_BITS-PASS1_BITS); - } - - /* Pass 2: process 5 rows from work array, store into output array. - * 10-point IDCT kernel, cK represents sqrt(2) * cos(K*pi/20). - */ - wsptr = workspace; - for (ctr = 0; ctr < 5; ctr++) { - outptr = output_buf[ctr] + output_col; - - /* Even part */ - - /* Add fudge factor here for final descale. */ - z3 = (INT32) wsptr[0] + (ONE << (PASS1_BITS+2)); - z3 <<= CONST_BITS; - z4 = (INT32) wsptr[4]; - z1 = MULTIPLY(z4, FIX(1.144122806)); /* c4 */ - z2 = MULTIPLY(z4, FIX(0.437016024)); /* c8 */ - tmp10 = z3 + z1; - tmp11 = z3 - z2; - - tmp22 = z3 - ((z1 - z2) << 1); /* c0 = (c4-c8)*2 */ - - z2 = (INT32) wsptr[2]; - z3 = (INT32) wsptr[6]; - - z1 = MULTIPLY(z2 + z3, FIX(0.831253876)); /* c6 */ - tmp12 = z1 + MULTIPLY(z2, FIX(0.513743148)); /* c2-c6 */ - tmp13 = z1 - MULTIPLY(z3, FIX(2.176250899)); /* c2+c6 */ - - tmp20 = tmp10 + tmp12; - tmp24 = tmp10 - tmp12; - tmp21 = tmp11 + tmp13; - tmp23 = tmp11 - tmp13; - - /* Odd part */ - - z1 = (INT32) wsptr[1]; - z2 = (INT32) wsptr[3]; - z3 = (INT32) wsptr[5]; - z3 <<= CONST_BITS; - z4 = (INT32) wsptr[7]; - - tmp11 = z2 + z4; - tmp13 = z2 - z4; - - tmp12 = MULTIPLY(tmp13, FIX(0.309016994)); /* (c3-c7)/2 */ - - z2 = MULTIPLY(tmp11, FIX(0.951056516)); /* (c3+c7)/2 */ - z4 = z3 + tmp12; - - tmp10 = MULTIPLY(z1, FIX(1.396802247)) + z2 + z4; /* c1 */ - tmp14 = MULTIPLY(z1, FIX(0.221231742)) - z2 + z4; /* c9 */ - - z2 = MULTIPLY(tmp11, FIX(0.587785252)); /* (c1-c9)/2 */ - z4 = z3 - tmp12 - (tmp13 << (CONST_BITS - 1)); - - tmp12 = ((z1 - tmp13) << CONST_BITS) - z3; - - tmp11 = MULTIPLY(z1, FIX(1.260073511)) - z2 - z4; /* c3 */ - tmp13 = MULTIPLY(z1, FIX(0.642039522)) - z2 + z4; /* c7 */ - - /* Final output stage */ - - outptr[0] = range_limit[(int) RIGHT_SHIFT(tmp20 + tmp10, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[9] = range_limit[(int) RIGHT_SHIFT(tmp20 - tmp10, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[1] = range_limit[(int) RIGHT_SHIFT(tmp21 + tmp11, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[8] = range_limit[(int) RIGHT_SHIFT(tmp21 - tmp11, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[2] = range_limit[(int) RIGHT_SHIFT(tmp22 + tmp12, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[7] = range_limit[(int) RIGHT_SHIFT(tmp22 - tmp12, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[3] = range_limit[(int) RIGHT_SHIFT(tmp23 + tmp13, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[6] = range_limit[(int) RIGHT_SHIFT(tmp23 - tmp13, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[4] = range_limit[(int) RIGHT_SHIFT(tmp24 + tmp14, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[5] = range_limit[(int) RIGHT_SHIFT(tmp24 - tmp14, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - - wsptr += 8; /* advance pointer to next row */ - } -} - - -/* - * Perform dequantization and inverse DCT on one block of coefficients, - * producing a 8x4 output block. - * - * 4-point IDCT in pass 1 (columns), 8-point in pass 2 (rows). - */ - -GLOBAL(void) -jpeg_idct_8x4 (j_decompress_ptr cinfo, jpeg_component_info * compptr, - JCOEFPTR coef_block, - JSAMPARRAY output_buf, JDIMENSION output_col) -{ - INT32 tmp0, tmp1, tmp2, tmp3; - INT32 tmp10, tmp11, tmp12, tmp13; - INT32 z1, z2, z3; - JCOEFPTR inptr; - ISLOW_MULT_TYPE * quantptr; - int * wsptr; - JSAMPROW outptr; - JSAMPLE *range_limit = IDCT_range_limit(cinfo); - int ctr; - int workspace[8*4]; /* buffers data between passes */ - SHIFT_TEMPS - - /* Pass 1: process columns from input, store into work array. - * 4-point IDCT kernel, cK represents sqrt(2) * cos(K*pi/16). - */ - inptr = coef_block; - quantptr = (ISLOW_MULT_TYPE *) compptr->dct_table; - wsptr = workspace; - for (ctr = 0; ctr < 8; ctr++, inptr++, quantptr++, wsptr++) { - /* Even part */ - - tmp0 = DEQUANTIZE(inptr[DCTSIZE*0], quantptr[DCTSIZE*0]); - tmp2 = DEQUANTIZE(inptr[DCTSIZE*2], quantptr[DCTSIZE*2]); - - tmp10 = (tmp0 + tmp2) << PASS1_BITS; - tmp12 = (tmp0 - tmp2) << PASS1_BITS; - - /* Odd part */ - /* Same rotation as in the even part of the 8x8 LL&M IDCT */ - - z2 = DEQUANTIZE(inptr[DCTSIZE*1], quantptr[DCTSIZE*1]); - z3 = DEQUANTIZE(inptr[DCTSIZE*3], quantptr[DCTSIZE*3]); - - z1 = MULTIPLY(z2 + z3, FIX_0_541196100); /* c6 */ - /* Add fudge factor here for final descale. */ - z1 += ONE << (CONST_BITS-PASS1_BITS-1); - tmp0 = RIGHT_SHIFT(z1 + MULTIPLY(z2, FIX_0_765366865), /* c2-c6 */ - CONST_BITS-PASS1_BITS); - tmp2 = RIGHT_SHIFT(z1 - MULTIPLY(z3, FIX_1_847759065), /* c2+c6 */ - CONST_BITS-PASS1_BITS); - - /* Final output stage */ - - wsptr[8*0] = (int) (tmp10 + tmp0); - wsptr[8*3] = (int) (tmp10 - tmp0); - wsptr[8*1] = (int) (tmp12 + tmp2); - wsptr[8*2] = (int) (tmp12 - tmp2); - } - - /* Pass 2: process rows from work array, store into output array. */ - /* Note that we must descale the results by a factor of 8 == 2**3, */ - /* and also undo the PASS1_BITS scaling. */ - - wsptr = workspace; - for (ctr = 0; ctr < 4; ctr++) { - outptr = output_buf[ctr] + output_col; - - /* Even part: reverse the even part of the forward DCT. */ - /* The rotator is sqrt(2)*c(-6). */ - - z2 = (INT32) wsptr[2]; - z3 = (INT32) wsptr[6]; - - z1 = MULTIPLY(z2 + z3, FIX_0_541196100); - tmp2 = z1 + MULTIPLY(z2, FIX_0_765366865); - tmp3 = z1 - MULTIPLY(z3, FIX_1_847759065); - - /* Add fudge factor here for final descale. */ - z2 = (INT32) wsptr[0] + (ONE << (PASS1_BITS+2)); - z3 = (INT32) wsptr[4]; - - tmp0 = (z2 + z3) << CONST_BITS; - tmp1 = (z2 - z3) << CONST_BITS; - - tmp10 = tmp0 + tmp2; - tmp13 = tmp0 - tmp2; - tmp11 = tmp1 + tmp3; - tmp12 = tmp1 - tmp3; - - /* Odd part per figure 8; the matrix is unitary and hence its - * transpose is its inverse. i0..i3 are y7,y5,y3,y1 respectively. - */ - - tmp0 = (INT32) wsptr[7]; - tmp1 = (INT32) wsptr[5]; - tmp2 = (INT32) wsptr[3]; - tmp3 = (INT32) wsptr[1]; - - z2 = tmp0 + tmp2; - z3 = tmp1 + tmp3; - - z1 = MULTIPLY(z2 + z3, FIX_1_175875602); /* sqrt(2) * c3 */ - z2 = MULTIPLY(z2, - FIX_1_961570560); /* sqrt(2) * (-c3-c5) */ - z3 = MULTIPLY(z3, - FIX_0_390180644); /* sqrt(2) * (c5-c3) */ - z2 += z1; - z3 += z1; - - z1 = MULTIPLY(tmp0 + tmp3, - FIX_0_899976223); /* sqrt(2) * (c7-c3) */ - tmp0 = MULTIPLY(tmp0, FIX_0_298631336); /* sqrt(2) * (-c1+c3+c5-c7) */ - tmp3 = MULTIPLY(tmp3, FIX_1_501321110); /* sqrt(2) * ( c1+c3-c5-c7) */ - tmp0 += z1 + z2; - tmp3 += z1 + z3; - - z1 = MULTIPLY(tmp1 + tmp2, - FIX_2_562915447); /* sqrt(2) * (-c1-c3) */ - tmp1 = MULTIPLY(tmp1, FIX_2_053119869); /* sqrt(2) * ( c1+c3-c5+c7) */ - tmp2 = MULTIPLY(tmp2, FIX_3_072711026); /* sqrt(2) * ( c1+c3+c5-c7) */ - tmp1 += z1 + z3; - tmp2 += z1 + z2; - - /* Final output stage: inputs are tmp10..tmp13, tmp0..tmp3 */ - - outptr[0] = range_limit[(int) RIGHT_SHIFT(tmp10 + tmp3, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[7] = range_limit[(int) RIGHT_SHIFT(tmp10 - tmp3, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[1] = range_limit[(int) RIGHT_SHIFT(tmp11 + tmp2, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[6] = range_limit[(int) RIGHT_SHIFT(tmp11 - tmp2, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[2] = range_limit[(int) RIGHT_SHIFT(tmp12 + tmp1, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[5] = range_limit[(int) RIGHT_SHIFT(tmp12 - tmp1, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[3] = range_limit[(int) RIGHT_SHIFT(tmp13 + tmp0, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[4] = range_limit[(int) RIGHT_SHIFT(tmp13 - tmp0, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - - wsptr += DCTSIZE; /* advance pointer to next row */ - } -} - - -/* - * Perform dequantization and inverse DCT on one block of coefficients, - * producing a reduced-size 6x3 output block. - * - * 3-point IDCT in pass 1 (columns), 6-point in pass 2 (rows). - */ - -GLOBAL(void) -jpeg_idct_6x3 (j_decompress_ptr cinfo, jpeg_component_info * compptr, - JCOEFPTR coef_block, - JSAMPARRAY output_buf, JDIMENSION output_col) -{ - INT32 tmp0, tmp1, tmp2, tmp10, tmp11, tmp12; - INT32 z1, z2, z3; - JCOEFPTR inptr; - ISLOW_MULT_TYPE * quantptr; - int * wsptr; - JSAMPROW outptr; - JSAMPLE *range_limit = IDCT_range_limit(cinfo); - int ctr; - int workspace[6*3]; /* buffers data between passes */ - SHIFT_TEMPS - - /* Pass 1: process columns from input, store into work array. - * 3-point IDCT kernel, cK represents sqrt(2) * cos(K*pi/6). - */ - inptr = coef_block; - quantptr = (ISLOW_MULT_TYPE *) compptr->dct_table; - wsptr = workspace; - for (ctr = 0; ctr < 6; ctr++, inptr++, quantptr++, wsptr++) { - /* Even part */ - - tmp0 = DEQUANTIZE(inptr[DCTSIZE*0], quantptr[DCTSIZE*0]); - tmp0 <<= CONST_BITS; - /* Add fudge factor here for final descale. */ - tmp0 += ONE << (CONST_BITS-PASS1_BITS-1); - tmp2 = DEQUANTIZE(inptr[DCTSIZE*2], quantptr[DCTSIZE*2]); - tmp12 = MULTIPLY(tmp2, FIX(0.707106781)); /* c2 */ - tmp10 = tmp0 + tmp12; - tmp2 = tmp0 - tmp12 - tmp12; - - /* Odd part */ - - tmp12 = DEQUANTIZE(inptr[DCTSIZE*1], quantptr[DCTSIZE*1]); - tmp0 = MULTIPLY(tmp12, FIX(1.224744871)); /* c1 */ - - /* Final output stage */ - - wsptr[6*0] = (int) RIGHT_SHIFT(tmp10 + tmp0, CONST_BITS-PASS1_BITS); - wsptr[6*2] = (int) RIGHT_SHIFT(tmp10 - tmp0, CONST_BITS-PASS1_BITS); - wsptr[6*1] = (int) RIGHT_SHIFT(tmp2, CONST_BITS-PASS1_BITS); - } - - /* Pass 2: process 3 rows from work array, store into output array. - * 6-point IDCT kernel, cK represents sqrt(2) * cos(K*pi/12). - */ - wsptr = workspace; - for (ctr = 0; ctr < 3; ctr++) { - outptr = output_buf[ctr] + output_col; - - /* Even part */ - - /* Add fudge factor here for final descale. */ - tmp0 = (INT32) wsptr[0] + (ONE << (PASS1_BITS+2)); - tmp0 <<= CONST_BITS; - tmp2 = (INT32) wsptr[4]; - tmp10 = MULTIPLY(tmp2, FIX(0.707106781)); /* c4 */ - tmp1 = tmp0 + tmp10; - tmp11 = tmp0 - tmp10 - tmp10; - tmp10 = (INT32) wsptr[2]; - tmp0 = MULTIPLY(tmp10, FIX(1.224744871)); /* c2 */ - tmp10 = tmp1 + tmp0; - tmp12 = tmp1 - tmp0; - - /* Odd part */ - - z1 = (INT32) wsptr[1]; - z2 = (INT32) wsptr[3]; - z3 = (INT32) wsptr[5]; - tmp1 = MULTIPLY(z1 + z3, FIX(0.366025404)); /* c5 */ - tmp0 = tmp1 + ((z1 + z2) << CONST_BITS); - tmp2 = tmp1 + ((z3 - z2) << CONST_BITS); - tmp1 = (z1 - z2 - z3) << CONST_BITS; - - /* Final output stage */ - - outptr[0] = range_limit[(int) RIGHT_SHIFT(tmp10 + tmp0, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[5] = range_limit[(int) RIGHT_SHIFT(tmp10 - tmp0, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[1] = range_limit[(int) RIGHT_SHIFT(tmp11 + tmp1, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[4] = range_limit[(int) RIGHT_SHIFT(tmp11 - tmp1, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[2] = range_limit[(int) RIGHT_SHIFT(tmp12 + tmp2, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[3] = range_limit[(int) RIGHT_SHIFT(tmp12 - tmp2, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - - wsptr += 6; /* advance pointer to next row */ - } -} - - -/* - * Perform dequantization and inverse DCT on one block of coefficients, - * producing a 4x2 output block. - * - * 2-point IDCT in pass 1 (columns), 4-point in pass 2 (rows). - */ - -GLOBAL(void) -jpeg_idct_4x2 (j_decompress_ptr cinfo, jpeg_component_info * compptr, - JCOEFPTR coef_block, - JSAMPARRAY output_buf, JDIMENSION output_col) -{ - INT32 tmp0, tmp2, tmp10, tmp12; - INT32 z1, z2, z3; - JCOEFPTR inptr; - ISLOW_MULT_TYPE * quantptr; - INT32 * wsptr; - JSAMPROW outptr; - JSAMPLE *range_limit = IDCT_range_limit(cinfo); - int ctr; - INT32 workspace[4*2]; /* buffers data between passes */ - SHIFT_TEMPS - - /* Pass 1: process columns from input, store into work array. */ - - inptr = coef_block; - quantptr = (ISLOW_MULT_TYPE *) compptr->dct_table; - wsptr = workspace; - for (ctr = 0; ctr < 4; ctr++, inptr++, quantptr++, wsptr++) { - /* Even part */ - - tmp10 = DEQUANTIZE(inptr[DCTSIZE*0], quantptr[DCTSIZE*0]); - - /* Odd part */ - - tmp0 = DEQUANTIZE(inptr[DCTSIZE*1], quantptr[DCTSIZE*1]); - - /* Final output stage */ - - wsptr[4*0] = tmp10 + tmp0; - wsptr[4*1] = tmp10 - tmp0; - } - - /* Pass 2: process 2 rows from work array, store into output array. - * 4-point IDCT kernel, - * cK represents sqrt(2) * cos(K*pi/16) [refers to 8-point IDCT]. - */ - wsptr = workspace; - for (ctr = 0; ctr < 2; ctr++) { - outptr = output_buf[ctr] + output_col; - - /* Even part */ - - /* Add fudge factor here for final descale. */ - tmp0 = wsptr[0] + (ONE << 2); - tmp2 = wsptr[2]; - - tmp10 = (tmp0 + tmp2) << CONST_BITS; - tmp12 = (tmp0 - tmp2) << CONST_BITS; - - /* Odd part */ - /* Same rotation as in the even part of the 8x8 LL&M IDCT */ - - z2 = wsptr[1]; - z3 = wsptr[3]; - - z1 = MULTIPLY(z2 + z3, FIX_0_541196100); /* c6 */ - tmp0 = z1 + MULTIPLY(z2, FIX_0_765366865); /* c2-c6 */ - tmp2 = z1 - MULTIPLY(z3, FIX_1_847759065); /* c2+c6 */ - - /* Final output stage */ - - outptr[0] = range_limit[(int) RIGHT_SHIFT(tmp10 + tmp0, - CONST_BITS+3) - & RANGE_MASK]; - outptr[3] = range_limit[(int) RIGHT_SHIFT(tmp10 - tmp0, - CONST_BITS+3) - & RANGE_MASK]; - outptr[1] = range_limit[(int) RIGHT_SHIFT(tmp12 + tmp2, - CONST_BITS+3) - & RANGE_MASK]; - outptr[2] = range_limit[(int) RIGHT_SHIFT(tmp12 - tmp2, - CONST_BITS+3) - & RANGE_MASK]; - - wsptr += 4; /* advance pointer to next row */ - } -} - - -/* - * Perform dequantization and inverse DCT on one block of coefficients, - * producing a 2x1 output block. - * - * 1-point IDCT in pass 1 (columns), 2-point in pass 2 (rows). - */ - -GLOBAL(void) -jpeg_idct_2x1 (j_decompress_ptr cinfo, jpeg_component_info * compptr, - JCOEFPTR coef_block, - JSAMPARRAY output_buf, JDIMENSION output_col) -{ - INT32 tmp0, tmp10; - ISLOW_MULT_TYPE * quantptr; - JSAMPROW outptr; - JSAMPLE *range_limit = IDCT_range_limit(cinfo); - SHIFT_TEMPS - - /* Pass 1: empty. */ - - /* Pass 2: process 1 row from input, store into output array. */ - - quantptr = (ISLOW_MULT_TYPE *) compptr->dct_table; - outptr = output_buf[0] + output_col; - - /* Even part */ - - tmp10 = DEQUANTIZE(coef_block[0], quantptr[0]); - /* Add fudge factor here for final descale. */ - tmp10 += ONE << 2; - - /* Odd part */ - - tmp0 = DEQUANTIZE(coef_block[1], quantptr[1]); - - /* Final output stage */ - - outptr[0] = range_limit[(int) RIGHT_SHIFT(tmp10 + tmp0, 3) & RANGE_MASK]; - outptr[1] = range_limit[(int) RIGHT_SHIFT(tmp10 - tmp0, 3) & RANGE_MASK]; -} - - -/* - * Perform dequantization and inverse DCT on one block of coefficients, - * producing a 8x16 output block. - * - * 16-point IDCT in pass 1 (columns), 8-point in pass 2 (rows). - */ - -GLOBAL(void) -jpeg_idct_8x16 (j_decompress_ptr cinfo, jpeg_component_info * compptr, - JCOEFPTR coef_block, - JSAMPARRAY output_buf, JDIMENSION output_col) -{ - INT32 tmp0, tmp1, tmp2, tmp3, tmp10, tmp11, tmp12, tmp13; - INT32 tmp20, tmp21, tmp22, tmp23, tmp24, tmp25, tmp26, tmp27; - INT32 z1, z2, z3, z4; - JCOEFPTR inptr; - ISLOW_MULT_TYPE * quantptr; - int * wsptr; - JSAMPROW outptr; - JSAMPLE *range_limit = IDCT_range_limit(cinfo); - int ctr; - int workspace[8*16]; /* buffers data between passes */ - SHIFT_TEMPS - - /* Pass 1: process columns from input, store into work array. - * 16-point IDCT kernel, cK represents sqrt(2) * cos(K*pi/32). - */ - inptr = coef_block; - quantptr = (ISLOW_MULT_TYPE *) compptr->dct_table; - wsptr = workspace; - for (ctr = 0; ctr < 8; ctr++, inptr++, quantptr++, wsptr++) { - /* Even part */ - - tmp0 = DEQUANTIZE(inptr[DCTSIZE*0], quantptr[DCTSIZE*0]); - tmp0 <<= CONST_BITS; - /* Add fudge factor here for final descale. */ - tmp0 += ONE << (CONST_BITS-PASS1_BITS-1); - - z1 = DEQUANTIZE(inptr[DCTSIZE*4], quantptr[DCTSIZE*4]); - tmp1 = MULTIPLY(z1, FIX(1.306562965)); /* c4[16] = c2[8] */ - tmp2 = MULTIPLY(z1, FIX_0_541196100); /* c12[16] = c6[8] */ - - tmp10 = tmp0 + tmp1; - tmp11 = tmp0 - tmp1; - tmp12 = tmp0 + tmp2; - tmp13 = tmp0 - tmp2; - - z1 = DEQUANTIZE(inptr[DCTSIZE*2], quantptr[DCTSIZE*2]); - z2 = DEQUANTIZE(inptr[DCTSIZE*6], quantptr[DCTSIZE*6]); - z3 = z1 - z2; - z4 = MULTIPLY(z3, FIX(0.275899379)); /* c14[16] = c7[8] */ - z3 = MULTIPLY(z3, FIX(1.387039845)); /* c2[16] = c1[8] */ - - tmp0 = z3 + MULTIPLY(z2, FIX_2_562915447); /* (c6+c2)[16] = (c3+c1)[8] */ - tmp1 = z4 + MULTIPLY(z1, FIX_0_899976223); /* (c6-c14)[16] = (c3-c7)[8] */ - tmp2 = z3 - MULTIPLY(z1, FIX(0.601344887)); /* (c2-c10)[16] = (c1-c5)[8] */ - tmp3 = z4 - MULTIPLY(z2, FIX(0.509795579)); /* (c10-c14)[16] = (c5-c7)[8] */ - - tmp20 = tmp10 + tmp0; - tmp27 = tmp10 - tmp0; - tmp21 = tmp12 + tmp1; - tmp26 = tmp12 - tmp1; - tmp22 = tmp13 + tmp2; - tmp25 = tmp13 - tmp2; - tmp23 = tmp11 + tmp3; - tmp24 = tmp11 - tmp3; - - /* Odd part */ - - z1 = DEQUANTIZE(inptr[DCTSIZE*1], quantptr[DCTSIZE*1]); - z2 = DEQUANTIZE(inptr[DCTSIZE*3], quantptr[DCTSIZE*3]); - z3 = DEQUANTIZE(inptr[DCTSIZE*5], quantptr[DCTSIZE*5]); - z4 = DEQUANTIZE(inptr[DCTSIZE*7], quantptr[DCTSIZE*7]); - - tmp11 = z1 + z3; - - tmp1 = MULTIPLY(z1 + z2, FIX(1.353318001)); /* c3 */ - tmp2 = MULTIPLY(tmp11, FIX(1.247225013)); /* c5 */ - tmp3 = MULTIPLY(z1 + z4, FIX(1.093201867)); /* c7 */ - tmp10 = MULTIPLY(z1 - z4, FIX(0.897167586)); /* c9 */ - tmp11 = MULTIPLY(tmp11, FIX(0.666655658)); /* c11 */ - tmp12 = MULTIPLY(z1 - z2, FIX(0.410524528)); /* c13 */ - tmp0 = tmp1 + tmp2 + tmp3 - - MULTIPLY(z1, FIX(2.286341144)); /* c7+c5+c3-c1 */ - tmp13 = tmp10 + tmp11 + tmp12 - - MULTIPLY(z1, FIX(1.835730603)); /* c9+c11+c13-c15 */ - z1 = MULTIPLY(z2 + z3, FIX(0.138617169)); /* c15 */ - tmp1 += z1 + MULTIPLY(z2, FIX(0.071888074)); /* c9+c11-c3-c15 */ - tmp2 += z1 - MULTIPLY(z3, FIX(1.125726048)); /* c5+c7+c15-c3 */ - z1 = MULTIPLY(z3 - z2, FIX(1.407403738)); /* c1 */ - tmp11 += z1 - MULTIPLY(z3, FIX(0.766367282)); /* c1+c11-c9-c13 */ - tmp12 += z1 + MULTIPLY(z2, FIX(1.971951411)); /* c1+c5+c13-c7 */ - z2 += z4; - z1 = MULTIPLY(z2, - FIX(0.666655658)); /* -c11 */ - tmp1 += z1; - tmp3 += z1 + MULTIPLY(z4, FIX(1.065388962)); /* c3+c11+c15-c7 */ - z2 = MULTIPLY(z2, - FIX(1.247225013)); /* -c5 */ - tmp10 += z2 + MULTIPLY(z4, FIX(3.141271809)); /* c1+c5+c9-c13 */ - tmp12 += z2; - z2 = MULTIPLY(z3 + z4, - FIX(1.353318001)); /* -c3 */ - tmp2 += z2; - tmp3 += z2; - z2 = MULTIPLY(z4 - z3, FIX(0.410524528)); /* c13 */ - tmp10 += z2; - tmp11 += z2; - - /* Final output stage */ - - wsptr[8*0] = (int) RIGHT_SHIFT(tmp20 + tmp0, CONST_BITS-PASS1_BITS); - wsptr[8*15] = (int) RIGHT_SHIFT(tmp20 - tmp0, CONST_BITS-PASS1_BITS); - wsptr[8*1] = (int) RIGHT_SHIFT(tmp21 + tmp1, CONST_BITS-PASS1_BITS); - wsptr[8*14] = (int) RIGHT_SHIFT(tmp21 - tmp1, CONST_BITS-PASS1_BITS); - wsptr[8*2] = (int) RIGHT_SHIFT(tmp22 + tmp2, CONST_BITS-PASS1_BITS); - wsptr[8*13] = (int) RIGHT_SHIFT(tmp22 - tmp2, CONST_BITS-PASS1_BITS); - wsptr[8*3] = (int) RIGHT_SHIFT(tmp23 + tmp3, CONST_BITS-PASS1_BITS); - wsptr[8*12] = (int) RIGHT_SHIFT(tmp23 - tmp3, CONST_BITS-PASS1_BITS); - wsptr[8*4] = (int) RIGHT_SHIFT(tmp24 + tmp10, CONST_BITS-PASS1_BITS); - wsptr[8*11] = (int) RIGHT_SHIFT(tmp24 - tmp10, CONST_BITS-PASS1_BITS); - wsptr[8*5] = (int) RIGHT_SHIFT(tmp25 + tmp11, CONST_BITS-PASS1_BITS); - wsptr[8*10] = (int) RIGHT_SHIFT(tmp25 - tmp11, CONST_BITS-PASS1_BITS); - wsptr[8*6] = (int) RIGHT_SHIFT(tmp26 + tmp12, CONST_BITS-PASS1_BITS); - wsptr[8*9] = (int) RIGHT_SHIFT(tmp26 - tmp12, CONST_BITS-PASS1_BITS); - wsptr[8*7] = (int) RIGHT_SHIFT(tmp27 + tmp13, CONST_BITS-PASS1_BITS); - wsptr[8*8] = (int) RIGHT_SHIFT(tmp27 - tmp13, CONST_BITS-PASS1_BITS); - } - - /* Pass 2: process rows from work array, store into output array. */ - /* Note that we must descale the results by a factor of 8 == 2**3, */ - /* and also undo the PASS1_BITS scaling. */ - - wsptr = workspace; - for (ctr = 0; ctr < 16; ctr++) { - outptr = output_buf[ctr] + output_col; - - /* Even part: reverse the even part of the forward DCT. */ - /* The rotator is sqrt(2)*c(-6). */ - - z2 = (INT32) wsptr[2]; - z3 = (INT32) wsptr[6]; - - z1 = MULTIPLY(z2 + z3, FIX_0_541196100); - tmp2 = z1 + MULTIPLY(z2, FIX_0_765366865); - tmp3 = z1 - MULTIPLY(z3, FIX_1_847759065); - - /* Add fudge factor here for final descale. */ - z2 = (INT32) wsptr[0] + (ONE << (PASS1_BITS+2)); - z3 = (INT32) wsptr[4]; - - tmp0 = (z2 + z3) << CONST_BITS; - tmp1 = (z2 - z3) << CONST_BITS; - - tmp10 = tmp0 + tmp2; - tmp13 = tmp0 - tmp2; - tmp11 = tmp1 + tmp3; - tmp12 = tmp1 - tmp3; - - /* Odd part per figure 8; the matrix is unitary and hence its - * transpose is its inverse. i0..i3 are y7,y5,y3,y1 respectively. - */ - - tmp0 = (INT32) wsptr[7]; - tmp1 = (INT32) wsptr[5]; - tmp2 = (INT32) wsptr[3]; - tmp3 = (INT32) wsptr[1]; - - z2 = tmp0 + tmp2; - z3 = tmp1 + tmp3; - - z1 = MULTIPLY(z2 + z3, FIX_1_175875602); /* sqrt(2) * c3 */ - z2 = MULTIPLY(z2, - FIX_1_961570560); /* sqrt(2) * (-c3-c5) */ - z3 = MULTIPLY(z3, - FIX_0_390180644); /* sqrt(2) * (c5-c3) */ - z2 += z1; - z3 += z1; - - z1 = MULTIPLY(tmp0 + tmp3, - FIX_0_899976223); /* sqrt(2) * (c7-c3) */ - tmp0 = MULTIPLY(tmp0, FIX_0_298631336); /* sqrt(2) * (-c1+c3+c5-c7) */ - tmp3 = MULTIPLY(tmp3, FIX_1_501321110); /* sqrt(2) * ( c1+c3-c5-c7) */ - tmp0 += z1 + z2; - tmp3 += z1 + z3; - - z1 = MULTIPLY(tmp1 + tmp2, - FIX_2_562915447); /* sqrt(2) * (-c1-c3) */ - tmp1 = MULTIPLY(tmp1, FIX_2_053119869); /* sqrt(2) * ( c1+c3-c5+c7) */ - tmp2 = MULTIPLY(tmp2, FIX_3_072711026); /* sqrt(2) * ( c1+c3+c5-c7) */ - tmp1 += z1 + z3; - tmp2 += z1 + z2; - - /* Final output stage: inputs are tmp10..tmp13, tmp0..tmp3 */ - - outptr[0] = range_limit[(int) RIGHT_SHIFT(tmp10 + tmp3, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[7] = range_limit[(int) RIGHT_SHIFT(tmp10 - tmp3, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[1] = range_limit[(int) RIGHT_SHIFT(tmp11 + tmp2, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[6] = range_limit[(int) RIGHT_SHIFT(tmp11 - tmp2, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[2] = range_limit[(int) RIGHT_SHIFT(tmp12 + tmp1, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[5] = range_limit[(int) RIGHT_SHIFT(tmp12 - tmp1, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[3] = range_limit[(int) RIGHT_SHIFT(tmp13 + tmp0, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[4] = range_limit[(int) RIGHT_SHIFT(tmp13 - tmp0, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - - wsptr += DCTSIZE; /* advance pointer to next row */ - } -} - - -/* - * Perform dequantization and inverse DCT on one block of coefficients, - * producing a 7x14 output block. - * - * 14-point IDCT in pass 1 (columns), 7-point in pass 2 (rows). - */ - -GLOBAL(void) -jpeg_idct_7x14 (j_decompress_ptr cinfo, jpeg_component_info * compptr, - JCOEFPTR coef_block, - JSAMPARRAY output_buf, JDIMENSION output_col) -{ - INT32 tmp10, tmp11, tmp12, tmp13, tmp14, tmp15, tmp16; - INT32 tmp20, tmp21, tmp22, tmp23, tmp24, tmp25, tmp26; - INT32 z1, z2, z3, z4; - JCOEFPTR inptr; - ISLOW_MULT_TYPE * quantptr; - int * wsptr; - JSAMPROW outptr; - JSAMPLE *range_limit = IDCT_range_limit(cinfo); - int ctr; - int workspace[7*14]; /* buffers data between passes */ - SHIFT_TEMPS - - /* Pass 1: process columns from input, store into work array. - * 14-point IDCT kernel, cK represents sqrt(2) * cos(K*pi/28). - */ - inptr = coef_block; - quantptr = (ISLOW_MULT_TYPE *) compptr->dct_table; - wsptr = workspace; - for (ctr = 0; ctr < 7; ctr++, inptr++, quantptr++, wsptr++) { - /* Even part */ - - z1 = DEQUANTIZE(inptr[DCTSIZE*0], quantptr[DCTSIZE*0]); - z1 <<= CONST_BITS; - /* Add fudge factor here for final descale. */ - z1 += ONE << (CONST_BITS-PASS1_BITS-1); - z4 = DEQUANTIZE(inptr[DCTSIZE*4], quantptr[DCTSIZE*4]); - z2 = MULTIPLY(z4, FIX(1.274162392)); /* c4 */ - z3 = MULTIPLY(z4, FIX(0.314692123)); /* c12 */ - z4 = MULTIPLY(z4, FIX(0.881747734)); /* c8 */ - - tmp10 = z1 + z2; - tmp11 = z1 + z3; - tmp12 = z1 - z4; - - tmp23 = RIGHT_SHIFT(z1 - ((z2 + z3 - z4) << 1), /* c0 = (c4+c12-c8)*2 */ - CONST_BITS-PASS1_BITS); - - z1 = DEQUANTIZE(inptr[DCTSIZE*2], quantptr[DCTSIZE*2]); - z2 = DEQUANTIZE(inptr[DCTSIZE*6], quantptr[DCTSIZE*6]); - - z3 = MULTIPLY(z1 + z2, FIX(1.105676686)); /* c6 */ - - tmp13 = z3 + MULTIPLY(z1, FIX(0.273079590)); /* c2-c6 */ - tmp14 = z3 - MULTIPLY(z2, FIX(1.719280954)); /* c6+c10 */ - tmp15 = MULTIPLY(z1, FIX(0.613604268)) - /* c10 */ - MULTIPLY(z2, FIX(1.378756276)); /* c2 */ - - tmp20 = tmp10 + tmp13; - tmp26 = tmp10 - tmp13; - tmp21 = tmp11 + tmp14; - tmp25 = tmp11 - tmp14; - tmp22 = tmp12 + tmp15; - tmp24 = tmp12 - tmp15; - - /* Odd part */ - - z1 = DEQUANTIZE(inptr[DCTSIZE*1], quantptr[DCTSIZE*1]); - z2 = DEQUANTIZE(inptr[DCTSIZE*3], quantptr[DCTSIZE*3]); - z3 = DEQUANTIZE(inptr[DCTSIZE*5], quantptr[DCTSIZE*5]); - z4 = DEQUANTIZE(inptr[DCTSIZE*7], quantptr[DCTSIZE*7]); - tmp13 = z4 << CONST_BITS; - - tmp14 = z1 + z3; - tmp11 = MULTIPLY(z1 + z2, FIX(1.334852607)); /* c3 */ - tmp12 = MULTIPLY(tmp14, FIX(1.197448846)); /* c5 */ - tmp10 = tmp11 + tmp12 + tmp13 - MULTIPLY(z1, FIX(1.126980169)); /* c3+c5-c1 */ - tmp14 = MULTIPLY(tmp14, FIX(0.752406978)); /* c9 */ - tmp16 = tmp14 - MULTIPLY(z1, FIX(1.061150426)); /* c9+c11-c13 */ - z1 -= z2; - tmp15 = MULTIPLY(z1, FIX(0.467085129)) - tmp13; /* c11 */ - tmp16 += tmp15; - z1 += z4; - z4 = MULTIPLY(z2 + z3, - FIX(0.158341681)) - tmp13; /* -c13 */ - tmp11 += z4 - MULTIPLY(z2, FIX(0.424103948)); /* c3-c9-c13 */ - tmp12 += z4 - MULTIPLY(z3, FIX(2.373959773)); /* c3+c5-c13 */ - z4 = MULTIPLY(z3 - z2, FIX(1.405321284)); /* c1 */ - tmp14 += z4 + tmp13 - MULTIPLY(z3, FIX(1.6906431334)); /* c1+c9-c11 */ - tmp15 += z4 + MULTIPLY(z2, FIX(0.674957567)); /* c1+c11-c5 */ - - tmp13 = (z1 - z3) << PASS1_BITS; - - /* Final output stage */ - - wsptr[7*0] = (int) RIGHT_SHIFT(tmp20 + tmp10, CONST_BITS-PASS1_BITS); - wsptr[7*13] = (int) RIGHT_SHIFT(tmp20 - tmp10, CONST_BITS-PASS1_BITS); - wsptr[7*1] = (int) RIGHT_SHIFT(tmp21 + tmp11, CONST_BITS-PASS1_BITS); - wsptr[7*12] = (int) RIGHT_SHIFT(tmp21 - tmp11, CONST_BITS-PASS1_BITS); - wsptr[7*2] = (int) RIGHT_SHIFT(tmp22 + tmp12, CONST_BITS-PASS1_BITS); - wsptr[7*11] = (int) RIGHT_SHIFT(tmp22 - tmp12, CONST_BITS-PASS1_BITS); - wsptr[7*3] = (int) (tmp23 + tmp13); - wsptr[7*10] = (int) (tmp23 - tmp13); - wsptr[7*4] = (int) RIGHT_SHIFT(tmp24 + tmp14, CONST_BITS-PASS1_BITS); - wsptr[7*9] = (int) RIGHT_SHIFT(tmp24 - tmp14, CONST_BITS-PASS1_BITS); - wsptr[7*5] = (int) RIGHT_SHIFT(tmp25 + tmp15, CONST_BITS-PASS1_BITS); - wsptr[7*8] = (int) RIGHT_SHIFT(tmp25 - tmp15, CONST_BITS-PASS1_BITS); - wsptr[7*6] = (int) RIGHT_SHIFT(tmp26 + tmp16, CONST_BITS-PASS1_BITS); - wsptr[7*7] = (int) RIGHT_SHIFT(tmp26 - tmp16, CONST_BITS-PASS1_BITS); - } - - /* Pass 2: process 14 rows from work array, store into output array. - * 7-point IDCT kernel, cK represents sqrt(2) * cos(K*pi/14). - */ - wsptr = workspace; - for (ctr = 0; ctr < 14; ctr++) { - outptr = output_buf[ctr] + output_col; - - /* Even part */ - - /* Add fudge factor here for final descale. */ - tmp23 = (INT32) wsptr[0] + (ONE << (PASS1_BITS+2)); - tmp23 <<= CONST_BITS; - - z1 = (INT32) wsptr[2]; - z2 = (INT32) wsptr[4]; - z3 = (INT32) wsptr[6]; - - tmp20 = MULTIPLY(z2 - z3, FIX(0.881747734)); /* c4 */ - tmp22 = MULTIPLY(z1 - z2, FIX(0.314692123)); /* c6 */ - tmp21 = tmp20 + tmp22 + tmp23 - MULTIPLY(z2, FIX(1.841218003)); /* c2+c4-c6 */ - tmp10 = z1 + z3; - z2 -= tmp10; - tmp10 = MULTIPLY(tmp10, FIX(1.274162392)) + tmp23; /* c2 */ - tmp20 += tmp10 - MULTIPLY(z3, FIX(0.077722536)); /* c2-c4-c6 */ - tmp22 += tmp10 - MULTIPLY(z1, FIX(2.470602249)); /* c2+c4+c6 */ - tmp23 += MULTIPLY(z2, FIX(1.414213562)); /* c0 */ - - /* Odd part */ - - z1 = (INT32) wsptr[1]; - z2 = (INT32) wsptr[3]; - z3 = (INT32) wsptr[5]; - - tmp11 = MULTIPLY(z1 + z2, FIX(0.935414347)); /* (c3+c1-c5)/2 */ - tmp12 = MULTIPLY(z1 - z2, FIX(0.170262339)); /* (c3+c5-c1)/2 */ - tmp10 = tmp11 - tmp12; - tmp11 += tmp12; - tmp12 = MULTIPLY(z2 + z3, - FIX(1.378756276)); /* -c1 */ - tmp11 += tmp12; - z2 = MULTIPLY(z1 + z3, FIX(0.613604268)); /* c5 */ - tmp10 += z2; - tmp12 += z2 + MULTIPLY(z3, FIX(1.870828693)); /* c3+c1-c5 */ - - /* Final output stage */ - - outptr[0] = range_limit[(int) RIGHT_SHIFT(tmp20 + tmp10, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[6] = range_limit[(int) RIGHT_SHIFT(tmp20 - tmp10, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[1] = range_limit[(int) RIGHT_SHIFT(tmp21 + tmp11, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[5] = range_limit[(int) RIGHT_SHIFT(tmp21 - tmp11, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[2] = range_limit[(int) RIGHT_SHIFT(tmp22 + tmp12, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[4] = range_limit[(int) RIGHT_SHIFT(tmp22 - tmp12, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[3] = range_limit[(int) RIGHT_SHIFT(tmp23, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - - wsptr += 7; /* advance pointer to next row */ - } -} - - -/* - * Perform dequantization and inverse DCT on one block of coefficients, - * producing a 6x12 output block. - * - * 12-point IDCT in pass 1 (columns), 6-point in pass 2 (rows). - */ - -GLOBAL(void) -jpeg_idct_6x12 (j_decompress_ptr cinfo, jpeg_component_info * compptr, - JCOEFPTR coef_block, - JSAMPARRAY output_buf, JDIMENSION output_col) -{ - INT32 tmp10, tmp11, tmp12, tmp13, tmp14, tmp15; - INT32 tmp20, tmp21, tmp22, tmp23, tmp24, tmp25; - INT32 z1, z2, z3, z4; - JCOEFPTR inptr; - ISLOW_MULT_TYPE * quantptr; - int * wsptr; - JSAMPROW outptr; - JSAMPLE *range_limit = IDCT_range_limit(cinfo); - int ctr; - int workspace[6*12]; /* buffers data between passes */ - SHIFT_TEMPS - - /* Pass 1: process columns from input, store into work array. - * 12-point IDCT kernel, cK represents sqrt(2) * cos(K*pi/24). - */ - inptr = coef_block; - quantptr = (ISLOW_MULT_TYPE *) compptr->dct_table; - wsptr = workspace; - for (ctr = 0; ctr < 6; ctr++, inptr++, quantptr++, wsptr++) { - /* Even part */ - - z3 = DEQUANTIZE(inptr[DCTSIZE*0], quantptr[DCTSIZE*0]); - z3 <<= CONST_BITS; - /* Add fudge factor here for final descale. */ - z3 += ONE << (CONST_BITS-PASS1_BITS-1); - - z4 = DEQUANTIZE(inptr[DCTSIZE*4], quantptr[DCTSIZE*4]); - z4 = MULTIPLY(z4, FIX(1.224744871)); /* c4 */ - - tmp10 = z3 + z4; - tmp11 = z3 - z4; - - z1 = DEQUANTIZE(inptr[DCTSIZE*2], quantptr[DCTSIZE*2]); - z4 = MULTIPLY(z1, FIX(1.366025404)); /* c2 */ - z1 <<= CONST_BITS; - z2 = DEQUANTIZE(inptr[DCTSIZE*6], quantptr[DCTSIZE*6]); - z2 <<= CONST_BITS; - - tmp12 = z1 - z2; - - tmp21 = z3 + tmp12; - tmp24 = z3 - tmp12; - - tmp12 = z4 + z2; - - tmp20 = tmp10 + tmp12; - tmp25 = tmp10 - tmp12; - - tmp12 = z4 - z1 - z2; - - tmp22 = tmp11 + tmp12; - tmp23 = tmp11 - tmp12; - - /* Odd part */ - - z1 = DEQUANTIZE(inptr[DCTSIZE*1], quantptr[DCTSIZE*1]); - z2 = DEQUANTIZE(inptr[DCTSIZE*3], quantptr[DCTSIZE*3]); - z3 = DEQUANTIZE(inptr[DCTSIZE*5], quantptr[DCTSIZE*5]); - z4 = DEQUANTIZE(inptr[DCTSIZE*7], quantptr[DCTSIZE*7]); - - tmp11 = MULTIPLY(z2, FIX(1.306562965)); /* c3 */ - tmp14 = MULTIPLY(z2, - FIX_0_541196100); /* -c9 */ - - tmp10 = z1 + z3; - tmp15 = MULTIPLY(tmp10 + z4, FIX(0.860918669)); /* c7 */ - tmp12 = tmp15 + MULTIPLY(tmp10, FIX(0.261052384)); /* c5-c7 */ - tmp10 = tmp12 + tmp11 + MULTIPLY(z1, FIX(0.280143716)); /* c1-c5 */ - tmp13 = MULTIPLY(z3 + z4, - FIX(1.045510580)); /* -(c7+c11) */ - tmp12 += tmp13 + tmp14 - MULTIPLY(z3, FIX(1.478575242)); /* c1+c5-c7-c11 */ - tmp13 += tmp15 - tmp11 + MULTIPLY(z4, FIX(1.586706681)); /* c1+c11 */ - tmp15 += tmp14 - MULTIPLY(z1, FIX(0.676326758)) - /* c7-c11 */ - MULTIPLY(z4, FIX(1.982889723)); /* c5+c7 */ - - z1 -= z4; - z2 -= z3; - z3 = MULTIPLY(z1 + z2, FIX_0_541196100); /* c9 */ - tmp11 = z3 + MULTIPLY(z1, FIX_0_765366865); /* c3-c9 */ - tmp14 = z3 - MULTIPLY(z2, FIX_1_847759065); /* c3+c9 */ - - /* Final output stage */ - - wsptr[6*0] = (int) RIGHT_SHIFT(tmp20 + tmp10, CONST_BITS-PASS1_BITS); - wsptr[6*11] = (int) RIGHT_SHIFT(tmp20 - tmp10, CONST_BITS-PASS1_BITS); - wsptr[6*1] = (int) RIGHT_SHIFT(tmp21 + tmp11, CONST_BITS-PASS1_BITS); - wsptr[6*10] = (int) RIGHT_SHIFT(tmp21 - tmp11, CONST_BITS-PASS1_BITS); - wsptr[6*2] = (int) RIGHT_SHIFT(tmp22 + tmp12, CONST_BITS-PASS1_BITS); - wsptr[6*9] = (int) RIGHT_SHIFT(tmp22 - tmp12, CONST_BITS-PASS1_BITS); - wsptr[6*3] = (int) RIGHT_SHIFT(tmp23 + tmp13, CONST_BITS-PASS1_BITS); - wsptr[6*8] = (int) RIGHT_SHIFT(tmp23 - tmp13, CONST_BITS-PASS1_BITS); - wsptr[6*4] = (int) RIGHT_SHIFT(tmp24 + tmp14, CONST_BITS-PASS1_BITS); - wsptr[6*7] = (int) RIGHT_SHIFT(tmp24 - tmp14, CONST_BITS-PASS1_BITS); - wsptr[6*5] = (int) RIGHT_SHIFT(tmp25 + tmp15, CONST_BITS-PASS1_BITS); - wsptr[6*6] = (int) RIGHT_SHIFT(tmp25 - tmp15, CONST_BITS-PASS1_BITS); - } - - /* Pass 2: process 12 rows from work array, store into output array. - * 6-point IDCT kernel, cK represents sqrt(2) * cos(K*pi/12). - */ - wsptr = workspace; - for (ctr = 0; ctr < 12; ctr++) { - outptr = output_buf[ctr] + output_col; - - /* Even part */ - - /* Add fudge factor here for final descale. */ - tmp10 = (INT32) wsptr[0] + (ONE << (PASS1_BITS+2)); - tmp10 <<= CONST_BITS; - tmp12 = (INT32) wsptr[4]; - tmp20 = MULTIPLY(tmp12, FIX(0.707106781)); /* c4 */ - tmp11 = tmp10 + tmp20; - tmp21 = tmp10 - tmp20 - tmp20; - tmp20 = (INT32) wsptr[2]; - tmp10 = MULTIPLY(tmp20, FIX(1.224744871)); /* c2 */ - tmp20 = tmp11 + tmp10; - tmp22 = tmp11 - tmp10; - - /* Odd part */ - - z1 = (INT32) wsptr[1]; - z2 = (INT32) wsptr[3]; - z3 = (INT32) wsptr[5]; - tmp11 = MULTIPLY(z1 + z3, FIX(0.366025404)); /* c5 */ - tmp10 = tmp11 + ((z1 + z2) << CONST_BITS); - tmp12 = tmp11 + ((z3 - z2) << CONST_BITS); - tmp11 = (z1 - z2 - z3) << CONST_BITS; - - /* Final output stage */ - - outptr[0] = range_limit[(int) RIGHT_SHIFT(tmp20 + tmp10, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[5] = range_limit[(int) RIGHT_SHIFT(tmp20 - tmp10, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[1] = range_limit[(int) RIGHT_SHIFT(tmp21 + tmp11, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[4] = range_limit[(int) RIGHT_SHIFT(tmp21 - tmp11, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[2] = range_limit[(int) RIGHT_SHIFT(tmp22 + tmp12, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[3] = range_limit[(int) RIGHT_SHIFT(tmp22 - tmp12, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - - wsptr += 6; /* advance pointer to next row */ - } -} - - -/* - * Perform dequantization and inverse DCT on one block of coefficients, - * producing a 5x10 output block. - * - * 10-point IDCT in pass 1 (columns), 5-point in pass 2 (rows). - */ - -GLOBAL(void) -jpeg_idct_5x10 (j_decompress_ptr cinfo, jpeg_component_info * compptr, - JCOEFPTR coef_block, - JSAMPARRAY output_buf, JDIMENSION output_col) -{ - INT32 tmp10, tmp11, tmp12, tmp13, tmp14; - INT32 tmp20, tmp21, tmp22, tmp23, tmp24; - INT32 z1, z2, z3, z4, z5; - JCOEFPTR inptr; - ISLOW_MULT_TYPE * quantptr; - int * wsptr; - JSAMPROW outptr; - JSAMPLE *range_limit = IDCT_range_limit(cinfo); - int ctr; - int workspace[5*10]; /* buffers data between passes */ - SHIFT_TEMPS - - /* Pass 1: process columns from input, store into work array. - * 10-point IDCT kernel, cK represents sqrt(2) * cos(K*pi/20). - */ - inptr = coef_block; - quantptr = (ISLOW_MULT_TYPE *) compptr->dct_table; - wsptr = workspace; - for (ctr = 0; ctr < 5; ctr++, inptr++, quantptr++, wsptr++) { - /* Even part */ - - z3 = DEQUANTIZE(inptr[DCTSIZE*0], quantptr[DCTSIZE*0]); - z3 <<= CONST_BITS; - /* Add fudge factor here for final descale. */ - z3 += ONE << (CONST_BITS-PASS1_BITS-1); - z4 = DEQUANTIZE(inptr[DCTSIZE*4], quantptr[DCTSIZE*4]); - z1 = MULTIPLY(z4, FIX(1.144122806)); /* c4 */ - z2 = MULTIPLY(z4, FIX(0.437016024)); /* c8 */ - tmp10 = z3 + z1; - tmp11 = z3 - z2; - - tmp22 = RIGHT_SHIFT(z3 - ((z1 - z2) << 1), /* c0 = (c4-c8)*2 */ - CONST_BITS-PASS1_BITS); - - z2 = DEQUANTIZE(inptr[DCTSIZE*2], quantptr[DCTSIZE*2]); - z3 = DEQUANTIZE(inptr[DCTSIZE*6], quantptr[DCTSIZE*6]); - - z1 = MULTIPLY(z2 + z3, FIX(0.831253876)); /* c6 */ - tmp12 = z1 + MULTIPLY(z2, FIX(0.513743148)); /* c2-c6 */ - tmp13 = z1 - MULTIPLY(z3, FIX(2.176250899)); /* c2+c6 */ - - tmp20 = tmp10 + tmp12; - tmp24 = tmp10 - tmp12; - tmp21 = tmp11 + tmp13; - tmp23 = tmp11 - tmp13; - - /* Odd part */ - - z1 = DEQUANTIZE(inptr[DCTSIZE*1], quantptr[DCTSIZE*1]); - z2 = DEQUANTIZE(inptr[DCTSIZE*3], quantptr[DCTSIZE*3]); - z3 = DEQUANTIZE(inptr[DCTSIZE*5], quantptr[DCTSIZE*5]); - z4 = DEQUANTIZE(inptr[DCTSIZE*7], quantptr[DCTSIZE*7]); - - tmp11 = z2 + z4; - tmp13 = z2 - z4; - - tmp12 = MULTIPLY(tmp13, FIX(0.309016994)); /* (c3-c7)/2 */ - z5 = z3 << CONST_BITS; - - z2 = MULTIPLY(tmp11, FIX(0.951056516)); /* (c3+c7)/2 */ - z4 = z5 + tmp12; - - tmp10 = MULTIPLY(z1, FIX(1.396802247)) + z2 + z4; /* c1 */ - tmp14 = MULTIPLY(z1, FIX(0.221231742)) - z2 + z4; /* c9 */ - - z2 = MULTIPLY(tmp11, FIX(0.587785252)); /* (c1-c9)/2 */ - z4 = z5 - tmp12 - (tmp13 << (CONST_BITS - 1)); - - tmp12 = (z1 - tmp13 - z3) << PASS1_BITS; - - tmp11 = MULTIPLY(z1, FIX(1.260073511)) - z2 - z4; /* c3 */ - tmp13 = MULTIPLY(z1, FIX(0.642039522)) - z2 + z4; /* c7 */ - - /* Final output stage */ - - wsptr[5*0] = (int) RIGHT_SHIFT(tmp20 + tmp10, CONST_BITS-PASS1_BITS); - wsptr[5*9] = (int) RIGHT_SHIFT(tmp20 - tmp10, CONST_BITS-PASS1_BITS); - wsptr[5*1] = (int) RIGHT_SHIFT(tmp21 + tmp11, CONST_BITS-PASS1_BITS); - wsptr[5*8] = (int) RIGHT_SHIFT(tmp21 - tmp11, CONST_BITS-PASS1_BITS); - wsptr[5*2] = (int) (tmp22 + tmp12); - wsptr[5*7] = (int) (tmp22 - tmp12); - wsptr[5*3] = (int) RIGHT_SHIFT(tmp23 + tmp13, CONST_BITS-PASS1_BITS); - wsptr[5*6] = (int) RIGHT_SHIFT(tmp23 - tmp13, CONST_BITS-PASS1_BITS); - wsptr[5*4] = (int) RIGHT_SHIFT(tmp24 + tmp14, CONST_BITS-PASS1_BITS); - wsptr[5*5] = (int) RIGHT_SHIFT(tmp24 - tmp14, CONST_BITS-PASS1_BITS); - } - - /* Pass 2: process 10 rows from work array, store into output array. - * 5-point IDCT kernel, cK represents sqrt(2) * cos(K*pi/10). - */ - wsptr = workspace; - for (ctr = 0; ctr < 10; ctr++) { - outptr = output_buf[ctr] + output_col; - - /* Even part */ - - /* Add fudge factor here for final descale. */ - tmp12 = (INT32) wsptr[0] + (ONE << (PASS1_BITS+2)); - tmp12 <<= CONST_BITS; - tmp13 = (INT32) wsptr[2]; - tmp14 = (INT32) wsptr[4]; - z1 = MULTIPLY(tmp13 + tmp14, FIX(0.790569415)); /* (c2+c4)/2 */ - z2 = MULTIPLY(tmp13 - tmp14, FIX(0.353553391)); /* (c2-c4)/2 */ - z3 = tmp12 + z2; - tmp10 = z3 + z1; - tmp11 = z3 - z1; - tmp12 -= z2 << 2; - - /* Odd part */ - - z2 = (INT32) wsptr[1]; - z3 = (INT32) wsptr[3]; - - z1 = MULTIPLY(z2 + z3, FIX(0.831253876)); /* c3 */ - tmp13 = z1 + MULTIPLY(z2, FIX(0.513743148)); /* c1-c3 */ - tmp14 = z1 - MULTIPLY(z3, FIX(2.176250899)); /* c1+c3 */ - - /* Final output stage */ - - outptr[0] = range_limit[(int) RIGHT_SHIFT(tmp10 + tmp13, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[4] = range_limit[(int) RIGHT_SHIFT(tmp10 - tmp13, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[1] = range_limit[(int) RIGHT_SHIFT(tmp11 + tmp14, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[3] = range_limit[(int) RIGHT_SHIFT(tmp11 - tmp14, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[2] = range_limit[(int) RIGHT_SHIFT(tmp12, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - - wsptr += 5; /* advance pointer to next row */ - } -} - - -/* - * Perform dequantization and inverse DCT on one block of coefficients, - * producing a 4x8 output block. - * - * 8-point IDCT in pass 1 (columns), 4-point in pass 2 (rows). - */ - -GLOBAL(void) -jpeg_idct_4x8 (j_decompress_ptr cinfo, jpeg_component_info * compptr, - JCOEFPTR coef_block, - JSAMPARRAY output_buf, JDIMENSION output_col) -{ - INT32 tmp0, tmp1, tmp2, tmp3; - INT32 tmp10, tmp11, tmp12, tmp13; - INT32 z1, z2, z3; - JCOEFPTR inptr; - ISLOW_MULT_TYPE * quantptr; - int * wsptr; - JSAMPROW outptr; - JSAMPLE *range_limit = IDCT_range_limit(cinfo); - int ctr; - int workspace[4*8]; /* buffers data between passes */ - SHIFT_TEMPS - - /* Pass 1: process columns from input, store into work array. */ - /* Note results are scaled up by sqrt(8) compared to a true IDCT; */ - /* furthermore, we scale the results by 2**PASS1_BITS. */ - - inptr = coef_block; - quantptr = (ISLOW_MULT_TYPE *) compptr->dct_table; - wsptr = workspace; - for (ctr = 4; ctr > 0; ctr--) { - /* Due to quantization, we will usually find that many of the input - * coefficients are zero, especially the AC terms. We can exploit this - * by short-circuiting the IDCT calculation for any column in which all - * the AC terms are zero. In that case each output is equal to the - * DC coefficient (with scale factor as needed). - * With typical images and quantization tables, half or more of the - * column DCT calculations can be simplified this way. - */ - - if (inptr[DCTSIZE*1] == 0 && inptr[DCTSIZE*2] == 0 && - inptr[DCTSIZE*3] == 0 && inptr[DCTSIZE*4] == 0 && - inptr[DCTSIZE*5] == 0 && inptr[DCTSIZE*6] == 0 && - inptr[DCTSIZE*7] == 0) { - /* AC terms all zero */ - int dcval = DEQUANTIZE(inptr[DCTSIZE*0], quantptr[DCTSIZE*0]) << PASS1_BITS; - - wsptr[4*0] = dcval; - wsptr[4*1] = dcval; - wsptr[4*2] = dcval; - wsptr[4*3] = dcval; - wsptr[4*4] = dcval; - wsptr[4*5] = dcval; - wsptr[4*6] = dcval; - wsptr[4*7] = dcval; - - inptr++; /* advance pointers to next column */ - quantptr++; - wsptr++; - continue; - } - - /* Even part: reverse the even part of the forward DCT. */ - /* The rotator is sqrt(2)*c(-6). */ - - z2 = DEQUANTIZE(inptr[DCTSIZE*2], quantptr[DCTSIZE*2]); - z3 = DEQUANTIZE(inptr[DCTSIZE*6], quantptr[DCTSIZE*6]); - - z1 = MULTIPLY(z2 + z3, FIX_0_541196100); - tmp2 = z1 + MULTIPLY(z2, FIX_0_765366865); - tmp3 = z1 - MULTIPLY(z3, FIX_1_847759065); - - z2 = DEQUANTIZE(inptr[DCTSIZE*0], quantptr[DCTSIZE*0]); - z3 = DEQUANTIZE(inptr[DCTSIZE*4], quantptr[DCTSIZE*4]); - z2 <<= CONST_BITS; - z3 <<= CONST_BITS; - /* Add fudge factor here for final descale. */ - z2 += ONE << (CONST_BITS-PASS1_BITS-1); - - tmp0 = z2 + z3; - tmp1 = z2 - z3; - - tmp10 = tmp0 + tmp2; - tmp13 = tmp0 - tmp2; - tmp11 = tmp1 + tmp3; - tmp12 = tmp1 - tmp3; - - /* Odd part per figure 8; the matrix is unitary and hence its - * transpose is its inverse. i0..i3 are y7,y5,y3,y1 respectively. - */ - - tmp0 = DEQUANTIZE(inptr[DCTSIZE*7], quantptr[DCTSIZE*7]); - tmp1 = DEQUANTIZE(inptr[DCTSIZE*5], quantptr[DCTSIZE*5]); - tmp2 = DEQUANTIZE(inptr[DCTSIZE*3], quantptr[DCTSIZE*3]); - tmp3 = DEQUANTIZE(inptr[DCTSIZE*1], quantptr[DCTSIZE*1]); - - z2 = tmp0 + tmp2; - z3 = tmp1 + tmp3; - - z1 = MULTIPLY(z2 + z3, FIX_1_175875602); /* sqrt(2) * c3 */ - z2 = MULTIPLY(z2, - FIX_1_961570560); /* sqrt(2) * (-c3-c5) */ - z3 = MULTIPLY(z3, - FIX_0_390180644); /* sqrt(2) * (c5-c3) */ - z2 += z1; - z3 += z1; - - z1 = MULTIPLY(tmp0 + tmp3, - FIX_0_899976223); /* sqrt(2) * (c7-c3) */ - tmp0 = MULTIPLY(tmp0, FIX_0_298631336); /* sqrt(2) * (-c1+c3+c5-c7) */ - tmp3 = MULTIPLY(tmp3, FIX_1_501321110); /* sqrt(2) * ( c1+c3-c5-c7) */ - tmp0 += z1 + z2; - tmp3 += z1 + z3; - - z1 = MULTIPLY(tmp1 + tmp2, - FIX_2_562915447); /* sqrt(2) * (-c1-c3) */ - tmp1 = MULTIPLY(tmp1, FIX_2_053119869); /* sqrt(2) * ( c1+c3-c5+c7) */ - tmp2 = MULTIPLY(tmp2, FIX_3_072711026); /* sqrt(2) * ( c1+c3+c5-c7) */ - tmp1 += z1 + z3; - tmp2 += z1 + z2; - - /* Final output stage: inputs are tmp10..tmp13, tmp0..tmp3 */ - - wsptr[4*0] = (int) RIGHT_SHIFT(tmp10 + tmp3, CONST_BITS-PASS1_BITS); - wsptr[4*7] = (int) RIGHT_SHIFT(tmp10 - tmp3, CONST_BITS-PASS1_BITS); - wsptr[4*1] = (int) RIGHT_SHIFT(tmp11 + tmp2, CONST_BITS-PASS1_BITS); - wsptr[4*6] = (int) RIGHT_SHIFT(tmp11 - tmp2, CONST_BITS-PASS1_BITS); - wsptr[4*2] = (int) RIGHT_SHIFT(tmp12 + tmp1, CONST_BITS-PASS1_BITS); - wsptr[4*5] = (int) RIGHT_SHIFT(tmp12 - tmp1, CONST_BITS-PASS1_BITS); - wsptr[4*3] = (int) RIGHT_SHIFT(tmp13 + tmp0, CONST_BITS-PASS1_BITS); - wsptr[4*4] = (int) RIGHT_SHIFT(tmp13 - tmp0, CONST_BITS-PASS1_BITS); - - inptr++; /* advance pointers to next column */ - quantptr++; - wsptr++; - } - - /* Pass 2: process 8 rows from work array, store into output array. - * 4-point IDCT kernel, cK represents sqrt(2) * cos(K*pi/16). - */ - wsptr = workspace; - for (ctr = 0; ctr < 8; ctr++) { - outptr = output_buf[ctr] + output_col; - - /* Even part */ - - /* Add fudge factor here for final descale. */ - tmp0 = (INT32) wsptr[0] + (ONE << (PASS1_BITS+2)); - tmp2 = (INT32) wsptr[2]; - - tmp10 = (tmp0 + tmp2) << CONST_BITS; - tmp12 = (tmp0 - tmp2) << CONST_BITS; - - /* Odd part */ - /* Same rotation as in the even part of the 8x8 LL&M IDCT */ - - z2 = (INT32) wsptr[1]; - z3 = (INT32) wsptr[3]; - - z1 = MULTIPLY(z2 + z3, FIX_0_541196100); /* c6 */ - tmp0 = z1 + MULTIPLY(z2, FIX_0_765366865); /* c2-c6 */ - tmp2 = z1 - MULTIPLY(z3, FIX_1_847759065); /* c2+c6 */ - - /* Final output stage */ - - outptr[0] = range_limit[(int) RIGHT_SHIFT(tmp10 + tmp0, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[3] = range_limit[(int) RIGHT_SHIFT(tmp10 - tmp0, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[1] = range_limit[(int) RIGHT_SHIFT(tmp12 + tmp2, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[2] = range_limit[(int) RIGHT_SHIFT(tmp12 - tmp2, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - - wsptr += 4; /* advance pointer to next row */ - } -} - - -/* - * Perform dequantization and inverse DCT on one block of coefficients, - * producing a reduced-size 3x6 output block. - * - * 6-point IDCT in pass 1 (columns), 3-point in pass 2 (rows). - */ - -GLOBAL(void) -jpeg_idct_3x6 (j_decompress_ptr cinfo, jpeg_component_info * compptr, - JCOEFPTR coef_block, - JSAMPARRAY output_buf, JDIMENSION output_col) -{ - INT32 tmp0, tmp1, tmp2, tmp10, tmp11, tmp12; - INT32 z1, z2, z3; - JCOEFPTR inptr; - ISLOW_MULT_TYPE * quantptr; - int * wsptr; - JSAMPROW outptr; - JSAMPLE *range_limit = IDCT_range_limit(cinfo); - int ctr; - int workspace[3*6]; /* buffers data between passes */ - SHIFT_TEMPS - - /* Pass 1: process columns from input, store into work array. - * 6-point IDCT kernel, cK represents sqrt(2) * cos(K*pi/12). - */ - inptr = coef_block; - quantptr = (ISLOW_MULT_TYPE *) compptr->dct_table; - wsptr = workspace; - for (ctr = 0; ctr < 3; ctr++, inptr++, quantptr++, wsptr++) { - /* Even part */ - - tmp0 = DEQUANTIZE(inptr[DCTSIZE*0], quantptr[DCTSIZE*0]); - tmp0 <<= CONST_BITS; - /* Add fudge factor here for final descale. */ - tmp0 += ONE << (CONST_BITS-PASS1_BITS-1); - tmp2 = DEQUANTIZE(inptr[DCTSIZE*4], quantptr[DCTSIZE*4]); - tmp10 = MULTIPLY(tmp2, FIX(0.707106781)); /* c4 */ - tmp1 = tmp0 + tmp10; - tmp11 = RIGHT_SHIFT(tmp0 - tmp10 - tmp10, CONST_BITS-PASS1_BITS); - tmp10 = DEQUANTIZE(inptr[DCTSIZE*2], quantptr[DCTSIZE*2]); - tmp0 = MULTIPLY(tmp10, FIX(1.224744871)); /* c2 */ - tmp10 = tmp1 + tmp0; - tmp12 = tmp1 - tmp0; - - /* Odd part */ - - z1 = DEQUANTIZE(inptr[DCTSIZE*1], quantptr[DCTSIZE*1]); - z2 = DEQUANTIZE(inptr[DCTSIZE*3], quantptr[DCTSIZE*3]); - z3 = DEQUANTIZE(inptr[DCTSIZE*5], quantptr[DCTSIZE*5]); - tmp1 = MULTIPLY(z1 + z3, FIX(0.366025404)); /* c5 */ - tmp0 = tmp1 + ((z1 + z2) << CONST_BITS); - tmp2 = tmp1 + ((z3 - z2) << CONST_BITS); - tmp1 = (z1 - z2 - z3) << PASS1_BITS; - - /* Final output stage */ - - wsptr[3*0] = (int) RIGHT_SHIFT(tmp10 + tmp0, CONST_BITS-PASS1_BITS); - wsptr[3*5] = (int) RIGHT_SHIFT(tmp10 - tmp0, CONST_BITS-PASS1_BITS); - wsptr[3*1] = (int) (tmp11 + tmp1); - wsptr[3*4] = (int) (tmp11 - tmp1); - wsptr[3*2] = (int) RIGHT_SHIFT(tmp12 + tmp2, CONST_BITS-PASS1_BITS); - wsptr[3*3] = (int) RIGHT_SHIFT(tmp12 - tmp2, CONST_BITS-PASS1_BITS); - } - - /* Pass 2: process 6 rows from work array, store into output array. - * 3-point IDCT kernel, cK represents sqrt(2) * cos(K*pi/6). - */ - wsptr = workspace; - for (ctr = 0; ctr < 6; ctr++) { - outptr = output_buf[ctr] + output_col; - - /* Even part */ - - /* Add fudge factor here for final descale. */ - tmp0 = (INT32) wsptr[0] + (ONE << (PASS1_BITS+2)); - tmp0 <<= CONST_BITS; - tmp2 = (INT32) wsptr[2]; - tmp12 = MULTIPLY(tmp2, FIX(0.707106781)); /* c2 */ - tmp10 = tmp0 + tmp12; - tmp2 = tmp0 - tmp12 - tmp12; - - /* Odd part */ - - tmp12 = (INT32) wsptr[1]; - tmp0 = MULTIPLY(tmp12, FIX(1.224744871)); /* c1 */ - - /* Final output stage */ - - outptr[0] = range_limit[(int) RIGHT_SHIFT(tmp10 + tmp0, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[2] = range_limit[(int) RIGHT_SHIFT(tmp10 - tmp0, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[1] = range_limit[(int) RIGHT_SHIFT(tmp2, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - - wsptr += 3; /* advance pointer to next row */ - } -} - - -/* - * Perform dequantization and inverse DCT on one block of coefficients, - * producing a 2x4 output block. - * - * 4-point IDCT in pass 1 (columns), 2-point in pass 2 (rows). - */ - -GLOBAL(void) -jpeg_idct_2x4 (j_decompress_ptr cinfo, jpeg_component_info * compptr, - JCOEFPTR coef_block, - JSAMPARRAY output_buf, JDIMENSION output_col) -{ - INT32 tmp0, tmp2, tmp10, tmp12; - INT32 z1, z2, z3; - JCOEFPTR inptr; - ISLOW_MULT_TYPE * quantptr; - INT32 * wsptr; - JSAMPROW outptr; - JSAMPLE *range_limit = IDCT_range_limit(cinfo); - int ctr; - INT32 workspace[2*4]; /* buffers data between passes */ - SHIFT_TEMPS - - /* Pass 1: process columns from input, store into work array. - * 4-point IDCT kernel, - * cK represents sqrt(2) * cos(K*pi/16) [refers to 8-point IDCT]. - */ - inptr = coef_block; - quantptr = (ISLOW_MULT_TYPE *) compptr->dct_table; - wsptr = workspace; - for (ctr = 0; ctr < 2; ctr++, inptr++, quantptr++, wsptr++) { - /* Even part */ - - tmp0 = DEQUANTIZE(inptr[DCTSIZE*0], quantptr[DCTSIZE*0]); - tmp2 = DEQUANTIZE(inptr[DCTSIZE*2], quantptr[DCTSIZE*2]); - - tmp10 = (tmp0 + tmp2) << CONST_BITS; - tmp12 = (tmp0 - tmp2) << CONST_BITS; - - /* Odd part */ - /* Same rotation as in the even part of the 8x8 LL&M IDCT */ - - z2 = DEQUANTIZE(inptr[DCTSIZE*1], quantptr[DCTSIZE*1]); - z3 = DEQUANTIZE(inptr[DCTSIZE*3], quantptr[DCTSIZE*3]); - - z1 = MULTIPLY(z2 + z3, FIX_0_541196100); /* c6 */ - tmp0 = z1 + MULTIPLY(z2, FIX_0_765366865); /* c2-c6 */ - tmp2 = z1 - MULTIPLY(z3, FIX_1_847759065); /* c2+c6 */ - - /* Final output stage */ - - wsptr[2*0] = tmp10 + tmp0; - wsptr[2*3] = tmp10 - tmp0; - wsptr[2*1] = tmp12 + tmp2; - wsptr[2*2] = tmp12 - tmp2; - } - - /* Pass 2: process 4 rows from work array, store into output array. */ - - wsptr = workspace; - for (ctr = 0; ctr < 4; ctr++) { - outptr = output_buf[ctr] + output_col; - - /* Even part */ - - /* Add fudge factor here for final descale. */ - tmp10 = wsptr[0] + (ONE << (CONST_BITS+2)); - - /* Odd part */ - - tmp0 = wsptr[1]; - - /* Final output stage */ - - outptr[0] = range_limit[(int) RIGHT_SHIFT(tmp10 + tmp0, CONST_BITS+3) - & RANGE_MASK]; - outptr[1] = range_limit[(int) RIGHT_SHIFT(tmp10 - tmp0, CONST_BITS+3) - & RANGE_MASK]; - - wsptr += 2; /* advance pointer to next row */ - } -} - - -/* - * Perform dequantization and inverse DCT on one block of coefficients, - * producing a 1x2 output block. - * - * 2-point IDCT in pass 1 (columns), 1-point in pass 2 (rows). - */ - -GLOBAL(void) -jpeg_idct_1x2 (j_decompress_ptr cinfo, jpeg_component_info * compptr, - JCOEFPTR coef_block, - JSAMPARRAY output_buf, JDIMENSION output_col) -{ - INT32 tmp0, tmp10; - ISLOW_MULT_TYPE * quantptr; - JSAMPLE *range_limit = IDCT_range_limit(cinfo); - SHIFT_TEMPS - - /* Process 1 column from input, store into output array. */ - - quantptr = (ISLOW_MULT_TYPE *) compptr->dct_table; - - /* Even part */ - - tmp10 = DEQUANTIZE(coef_block[DCTSIZE*0], quantptr[DCTSIZE*0]); - /* Add fudge factor here for final descale. */ - tmp10 += ONE << 2; - - /* Odd part */ - - tmp0 = DEQUANTIZE(coef_block[DCTSIZE*1], quantptr[DCTSIZE*1]); - - /* Final output stage */ - - output_buf[0][output_col] = range_limit[(int) RIGHT_SHIFT(tmp10 + tmp0, 3) - & RANGE_MASK]; - output_buf[1][output_col] = range_limit[(int) RIGHT_SHIFT(tmp10 - tmp0, 3) - & RANGE_MASK]; -} - -#endif /* IDCT_SCALING_SUPPORTED */ -#endif /* DCT_ISLOW_SUPPORTED */ diff --git a/jpg/jinclude.h b/jpg/jinclude.h deleted file mode 100644 index 0a4f151..0000000 --- a/jpg/jinclude.h +++ /dev/null @@ -1,91 +0,0 @@ -/* - * jinclude.h - * - * Copyright (C) 1991-1994, Thomas G. Lane. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file exists to provide a single place to fix any problems with - * including the wrong system include files. (Common problems are taken - * care of by the standard jconfig symbols, but on really weird systems - * you may have to edit this file.) - * - * NOTE: this file is NOT intended to be included by applications using the - * JPEG library. Most applications need only include jpeglib.h. - */ - - -/* Include auto-config file to find out which system include files we need. */ - -#include "jconfig.h" /* auto configuration options */ -#define JCONFIG_INCLUDED /* so that jpeglib.h doesn't do it again */ - -/* - * We need the NULL macro and size_t typedef. - * On an ANSI-conforming system it is sufficient to include . - * Otherwise, we get them from or ; we may have to - * pull in as well. - * Note that the core JPEG library does not require ; - * only the default error handler and data source/destination modules do. - * But we must pull it in because of the references to FILE in jpeglib.h. - * You can remove those references if you want to compile without . - */ - -#ifdef HAVE_STDDEF_H -#include -#endif - -#ifdef HAVE_STDLIB_H -#include -#endif - -#ifdef NEED_SYS_TYPES_H -#include -#endif - -#include - -/* - * We need memory copying and zeroing functions, plus strncpy(). - * ANSI and System V implementations declare these in . - * BSD doesn't have the mem() functions, but it does have bcopy()/bzero(). - * Some systems may declare memset and memcpy in . - * - * NOTE: we assume the size parameters to these functions are of type size_t. - * Change the casts in these macros if not! - */ - -#ifdef NEED_BSD_STRINGS - -#include -#define MEMZERO(target,size) bzero((void *)(target), (size_t)(size)) -#define MEMCOPY(dest,src,size) bcopy((const void *)(src), (void *)(dest), (size_t)(size)) - -#else /* not BSD, assume ANSI/SysV string lib */ - -#include -#define MEMZERO(target,size) memset((void *)(target), 0, (size_t)(size)) -#define MEMCOPY(dest,src,size) memcpy((void *)(dest), (const void *)(src), (size_t)(size)) - -#endif - -/* - * In ANSI C, and indeed any rational implementation, size_t is also the - * type returned by sizeof(). However, it seems there are some irrational - * implementations out there, in which sizeof() returns an int even though - * size_t is defined as long or unsigned long. To ensure consistent results - * we always use this SIZEOF() macro in place of using sizeof() directly. - */ - -#define SIZEOF(object) ((size_t) sizeof(object)) - -/* - * The modules that use fread() and fwrite() always invoke them through - * these macros. On some systems you may need to twiddle the argument casts. - * CAUTION: argument order is different from underlying functions! - */ - -#define JFREAD(file,buf,sizeofbuf) \ - ((size_t) fread((void *) (buf), (size_t) 1, (size_t) (sizeofbuf), (file))) -#define JFWRITE(file,buf,sizeofbuf) \ - ((size_t) fwrite((const void *) (buf), (size_t) 1, (size_t) (sizeofbuf), (file))) diff --git a/jpg/jmemansi.c b/jpg/jmemansi.c deleted file mode 100644 index 2d93e49..0000000 --- a/jpg/jmemansi.c +++ /dev/null @@ -1,167 +0,0 @@ -/* - * jmemansi.c - * - * Copyright (C) 1992-1996, Thomas G. Lane. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file provides a simple generic implementation of the system- - * dependent portion of the JPEG memory manager. This implementation - * assumes that you have the ANSI-standard library routine tmpfile(). - * Also, the problem of determining the amount of memory available - * is shoved onto the user. - */ - -#define JPEG_INTERNALS -#include "jinclude.h" -#include "jpeglib.h" -#include "jmemsys.h" /* import the system-dependent declarations */ - -#ifndef HAVE_STDLIB_H /* should declare malloc(),free() */ -extern void * malloc JPP((size_t size)); -extern void free JPP((void *ptr)); -#endif - -#ifndef SEEK_SET /* pre-ANSI systems may not define this; */ -#define SEEK_SET 0 /* if not, assume 0 is correct */ -#endif - - -/* - * Memory allocation and freeing are controlled by the regular library - * routines malloc() and free(). - */ - -GLOBAL(void *) -jpeg_get_small (j_common_ptr cinfo, size_t sizeofobject) -{ - return (void *) malloc(sizeofobject); -} - -GLOBAL(void) -jpeg_free_small (j_common_ptr cinfo, void * object, size_t sizeofobject) -{ - free(object); -} - - -/* - * "Large" objects are treated the same as "small" ones. - * NB: although we include FAR keywords in the routine declarations, - * this file won't actually work in 80x86 small/medium model; at least, - * you probably won't be able to process useful-size images in only 64KB. - */ - -GLOBAL(void FAR *) -jpeg_get_large (j_common_ptr cinfo, size_t sizeofobject) -{ - return (void FAR *) malloc(sizeofobject); -} - -GLOBAL(void) -jpeg_free_large (j_common_ptr cinfo, void FAR * object, size_t sizeofobject) -{ - free(object); -} - - -/* - * This routine computes the total memory space available for allocation. - * It's impossible to do this in a portable way; our current solution is - * to make the user tell us (with a default value set at compile time). - * If you can actually get the available space, it's a good idea to subtract - * a slop factor of 5% or so. - */ - -#ifndef DEFAULT_MAX_MEM /* so can override from makefile */ -#define DEFAULT_MAX_MEM 1000000L /* default: one megabyte */ -#endif - -GLOBAL(long) -jpeg_mem_available (j_common_ptr cinfo, long min_bytes_needed, - long max_bytes_needed, long already_allocated) -{ - return cinfo->mem->max_memory_to_use - already_allocated; -} - - -/* - * Backing store (temporary file) management. - * Backing store objects are only used when the value returned by - * jpeg_mem_available is less than the total space needed. You can dispense - * with these routines if you have plenty of virtual memory; see jmemnobs.c. - */ - - -METHODDEF(void) -read_backing_store (j_common_ptr cinfo, backing_store_ptr info, - void FAR * buffer_address, - long file_offset, long byte_count) -{ - if (fseek(info->temp_file, file_offset, SEEK_SET)) - ERREXIT(cinfo, JERR_TFILE_SEEK); - if (JFREAD(info->temp_file, buffer_address, byte_count) - != (size_t) byte_count) - ERREXIT(cinfo, JERR_TFILE_READ); -} - - -METHODDEF(void) -write_backing_store (j_common_ptr cinfo, backing_store_ptr info, - void FAR * buffer_address, - long file_offset, long byte_count) -{ - if (fseek(info->temp_file, file_offset, SEEK_SET)) - ERREXIT(cinfo, JERR_TFILE_SEEK); - if (JFWRITE(info->temp_file, buffer_address, byte_count) - != (size_t) byte_count) - ERREXIT(cinfo, JERR_TFILE_WRITE); -} - - -METHODDEF(void) -close_backing_store (j_common_ptr cinfo, backing_store_ptr info) -{ - fclose(info->temp_file); - /* Since this implementation uses tmpfile() to create the file, - * no explicit file deletion is needed. - */ -} - - -/* - * Initial opening of a backing-store object. - * - * This version uses tmpfile(), which constructs a suitable file name - * behind the scenes. We don't have to use info->temp_name[] at all; - * indeed, we can't even find out the actual name of the temp file. - */ - -GLOBAL(void) -jpeg_open_backing_store (j_common_ptr cinfo, backing_store_ptr info, - long total_bytes_needed) -{ - if ((info->temp_file = tmpfile()) == NULL) - ERREXITS(cinfo, JERR_TFILE_CREATE, ""); - info->read_backing_store = read_backing_store; - info->write_backing_store = write_backing_store; - info->close_backing_store = close_backing_store; -} - - -/* - * These routines take care of any system-dependent initialization and - * cleanup required. - */ - -GLOBAL(long) -jpeg_mem_init (j_common_ptr cinfo) -{ - return DEFAULT_MAX_MEM; /* default for max_memory_to_use */ -} - -GLOBAL(void) -jpeg_mem_term (j_common_ptr cinfo) -{ - /* no work */ -} diff --git a/jpg/jmemdos.c b/jpg/jmemdos.c deleted file mode 100644 index 60b45c6..0000000 --- a/jpg/jmemdos.c +++ /dev/null @@ -1,638 +0,0 @@ -/* - * jmemdos.c - * - * Copyright (C) 1992-1997, Thomas G. Lane. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file provides an MS-DOS-compatible implementation of the system- - * dependent portion of the JPEG memory manager. Temporary data can be - * stored in extended or expanded memory as well as in regular DOS files. - * - * If you use this file, you must be sure that NEED_FAR_POINTERS is defined - * if you compile in a small-data memory model; it should NOT be defined if - * you use a large-data memory model. This file is not recommended if you - * are using a flat-memory-space 386 environment such as DJGCC or Watcom C. - * Also, this code will NOT work if struct fields are aligned on greater than - * 2-byte boundaries. - * - * Based on code contributed by Ge' Weijers. - */ - -/* - * If you have both extended and expanded memory, you may want to change the - * order in which they are tried in jopen_backing_store. On a 286 machine - * expanded memory is usually faster, since extended memory access involves - * an expensive protected-mode-and-back switch. On 386 and better, extended - * memory is usually faster. As distributed, the code tries extended memory - * first (what? not everyone has a 386? :-). - * - * You can disable use of extended/expanded memory entirely by altering these - * definitions or overriding them from the Makefile (eg, -DEMS_SUPPORTED=0). - */ - -#ifndef XMS_SUPPORTED -#define XMS_SUPPORTED 1 -#endif -#ifndef EMS_SUPPORTED -#define EMS_SUPPORTED 1 -#endif - - -#define JPEG_INTERNALS -#include "jinclude.h" -#include "jpeglib.h" -#include "jmemsys.h" /* import the system-dependent declarations */ - -#ifndef HAVE_STDLIB_H /* should declare these */ -extern void * malloc JPP((size_t size)); -extern void free JPP((void *ptr)); -extern char * getenv JPP((const char * name)); -#endif - -#ifdef NEED_FAR_POINTERS - -#ifdef __TURBOC__ -/* These definitions work for Borland C (Turbo C) */ -#include /* need farmalloc(), farfree() */ -#define far_malloc(x) farmalloc(x) -#define far_free(x) farfree(x) -#else -/* These definitions work for Microsoft C and compatible compilers */ -#include /* need _fmalloc(), _ffree() */ -#define far_malloc(x) _fmalloc(x) -#define far_free(x) _ffree(x) -#endif - -#else /* not NEED_FAR_POINTERS */ - -#define far_malloc(x) malloc(x) -#define far_free(x) free(x) - -#endif /* NEED_FAR_POINTERS */ - -#ifdef DONT_USE_B_MODE /* define mode parameters for fopen() */ -#define READ_BINARY "r" -#else -#define READ_BINARY "rb" -#endif - -#ifndef USE_MSDOS_MEMMGR /* make sure user got configuration right */ - You forgot to define USE_MSDOS_MEMMGR in jconfig.h. /* deliberate syntax error */ -#endif - -#if MAX_ALLOC_CHUNK >= 65535L /* make sure jconfig.h got this right */ - MAX_ALLOC_CHUNK should be less than 64K. /* deliberate syntax error */ -#endif - - -/* - * Declarations for assembly-language support routines (see jmemdosa.asm). - * - * The functions are declared "far" as are all their pointer arguments; - * this ensures the assembly source code will work regardless of the - * compiler memory model. We assume "short" is 16 bits, "long" is 32. - */ - -typedef void far * XMSDRIVER; /* actually a pointer to code */ -typedef struct { /* registers for calling XMS driver */ - unsigned short ax, dx, bx; - void far * ds_si; - } XMScontext; -typedef struct { /* registers for calling EMS driver */ - unsigned short ax, dx, bx; - void far * ds_si; - } EMScontext; - -extern short far jdos_open JPP((short far * handle, char far * filename)); -extern short far jdos_close JPP((short handle)); -extern short far jdos_seek JPP((short handle, long offset)); -extern short far jdos_read JPP((short handle, void far * buffer, - unsigned short count)); -extern short far jdos_write JPP((short handle, void far * buffer, - unsigned short count)); -extern void far jxms_getdriver JPP((XMSDRIVER far *)); -extern void far jxms_calldriver JPP((XMSDRIVER, XMScontext far *)); -extern short far jems_available JPP((void)); -extern void far jems_calldriver JPP((EMScontext far *)); - - -/* - * Selection of a file name for a temporary file. - * This is highly system-dependent, and you may want to customize it. - */ - -static int next_file_num; /* to distinguish among several temp files */ - -LOCAL(void) -select_file_name (char * fname) -{ - const char * env; - char * ptr; - FILE * tfile; - - /* Keep generating file names till we find one that's not in use */ - for (;;) { - /* Get temp directory name from environment TMP or TEMP variable; - * if none, use "." - */ - if ((env = (const char *) getenv("TMP")) == NULL) - if ((env = (const char *) getenv("TEMP")) == NULL) - env = "."; - if (*env == '\0') /* null string means "." */ - env = "."; - ptr = fname; /* copy name to fname */ - while (*env != '\0') - *ptr++ = *env++; - if (ptr[-1] != '\\' && ptr[-1] != '/') - *ptr++ = '\\'; /* append backslash if not in env variable */ - /* Append a suitable file name */ - next_file_num++; /* advance counter */ - sprintf(ptr, "JPG%03d.TMP", next_file_num); - /* Probe to see if file name is already in use */ - if ((tfile = fopen(fname, READ_BINARY)) == NULL) - break; - fclose(tfile); /* oops, it's there; close tfile & try again */ - } -} - - -/* - * Near-memory allocation and freeing are controlled by the regular library - * routines malloc() and free(). - */ - -GLOBAL(void *) -jpeg_get_small (j_common_ptr cinfo, size_t sizeofobject) -{ - return (void *) malloc(sizeofobject); -} - -GLOBAL(void) -jpeg_free_small (j_common_ptr cinfo, void * object, size_t sizeofobject) -{ - free(object); -} - - -/* - * "Large" objects are allocated in far memory, if possible - */ - -GLOBAL(void FAR *) -jpeg_get_large (j_common_ptr cinfo, size_t sizeofobject) -{ - return (void FAR *) far_malloc(sizeofobject); -} - -GLOBAL(void) -jpeg_free_large (j_common_ptr cinfo, void FAR * object, size_t sizeofobject) -{ - far_free(object); -} - - -/* - * This routine computes the total memory space available for allocation. - * It's impossible to do this in a portable way; our current solution is - * to make the user tell us (with a default value set at compile time). - * If you can actually get the available space, it's a good idea to subtract - * a slop factor of 5% or so. - */ - -#ifndef DEFAULT_MAX_MEM /* so can override from makefile */ -#define DEFAULT_MAX_MEM 300000L /* for total usage about 450K */ -#endif - -GLOBAL(long) -jpeg_mem_available (j_common_ptr cinfo, long min_bytes_needed, - long max_bytes_needed, long already_allocated) -{ - return cinfo->mem->max_memory_to_use - already_allocated; -} - - -/* - * Backing store (temporary file) management. - * Backing store objects are only used when the value returned by - * jpeg_mem_available is less than the total space needed. You can dispense - * with these routines if you have plenty of virtual memory; see jmemnobs.c. - */ - -/* - * For MS-DOS we support three types of backing storage: - * 1. Conventional DOS files. We access these by direct DOS calls rather - * than via the stdio package. This provides a bit better performance, - * but the real reason is that the buffers to be read or written are FAR. - * The stdio library for small-data memory models can't cope with that. - * 2. Extended memory, accessed per the XMS V2.0 specification. - * 3. Expanded memory, accessed per the LIM/EMS 4.0 specification. - * You'll need copies of those specs to make sense of the related code. - * The specs are available by Internet FTP from the SIMTEL archives - * (oak.oakland.edu and its various mirror sites). See files - * pub/msdos/microsoft/xms20.arc and pub/msdos/info/limems41.zip. - */ - - -/* - * Access methods for a DOS file. - */ - - -METHODDEF(void) -read_file_store (j_common_ptr cinfo, backing_store_ptr info, - void FAR * buffer_address, - long file_offset, long byte_count) -{ - if (jdos_seek(info->handle.file_handle, file_offset)) - ERREXIT(cinfo, JERR_TFILE_SEEK); - /* Since MAX_ALLOC_CHUNK is less than 64K, byte_count will be too. */ - if (byte_count > 65535L) /* safety check */ - ERREXIT(cinfo, JERR_BAD_ALLOC_CHUNK); - if (jdos_read(info->handle.file_handle, buffer_address, - (unsigned short) byte_count)) - ERREXIT(cinfo, JERR_TFILE_READ); -} - - -METHODDEF(void) -write_file_store (j_common_ptr cinfo, backing_store_ptr info, - void FAR * buffer_address, - long file_offset, long byte_count) -{ - if (jdos_seek(info->handle.file_handle, file_offset)) - ERREXIT(cinfo, JERR_TFILE_SEEK); - /* Since MAX_ALLOC_CHUNK is less than 64K, byte_count will be too. */ - if (byte_count > 65535L) /* safety check */ - ERREXIT(cinfo, JERR_BAD_ALLOC_CHUNK); - if (jdos_write(info->handle.file_handle, buffer_address, - (unsigned short) byte_count)) - ERREXIT(cinfo, JERR_TFILE_WRITE); -} - - -METHODDEF(void) -close_file_store (j_common_ptr cinfo, backing_store_ptr info) -{ - jdos_close(info->handle.file_handle); /* close the file */ - remove(info->temp_name); /* delete the file */ -/* If your system doesn't have remove(), try unlink() instead. - * remove() is the ANSI-standard name for this function, but - * unlink() was more common in pre-ANSI systems. - */ - TRACEMSS(cinfo, 1, JTRC_TFILE_CLOSE, info->temp_name); -} - - -LOCAL(boolean) -open_file_store (j_common_ptr cinfo, backing_store_ptr info, - long total_bytes_needed) -{ - short handle; - - select_file_name(info->temp_name); - if (jdos_open((short far *) & handle, (char far *) info->temp_name)) { - /* might as well exit since jpeg_open_backing_store will fail anyway */ - ERREXITS(cinfo, JERR_TFILE_CREATE, info->temp_name); - return FALSE; - } - info->handle.file_handle = handle; - info->read_backing_store = read_file_store; - info->write_backing_store = write_file_store; - info->close_backing_store = close_file_store; - TRACEMSS(cinfo, 1, JTRC_TFILE_OPEN, info->temp_name); - return TRUE; /* succeeded */ -} - - -/* - * Access methods for extended memory. - */ - -#if XMS_SUPPORTED - -static XMSDRIVER xms_driver; /* saved address of XMS driver */ - -typedef union { /* either long offset or real-mode pointer */ - long offset; - void far * ptr; - } XMSPTR; - -typedef struct { /* XMS move specification structure */ - long length; - XMSH src_handle; - XMSPTR src; - XMSH dst_handle; - XMSPTR dst; - } XMSspec; - -#define ODD(X) (((X) & 1L) != 0) - - -METHODDEF(void) -read_xms_store (j_common_ptr cinfo, backing_store_ptr info, - void FAR * buffer_address, - long file_offset, long byte_count) -{ - XMScontext ctx; - XMSspec spec; - char endbuffer[2]; - - /* The XMS driver can't cope with an odd length, so handle the last byte - * specially if byte_count is odd. We don't expect this to be common. - */ - - spec.length = byte_count & (~ 1L); - spec.src_handle = info->handle.xms_handle; - spec.src.offset = file_offset; - spec.dst_handle = 0; - spec.dst.ptr = buffer_address; - - ctx.ds_si = (void far *) & spec; - ctx.ax = 0x0b00; /* EMB move */ - jxms_calldriver(xms_driver, (XMScontext far *) & ctx); - if (ctx.ax != 1) - ERREXIT(cinfo, JERR_XMS_READ); - - if (ODD(byte_count)) { - read_xms_store(cinfo, info, (void FAR *) endbuffer, - file_offset + byte_count - 1L, 2L); - ((char FAR *) buffer_address)[byte_count - 1L] = endbuffer[0]; - } -} - - -METHODDEF(void) -write_xms_store (j_common_ptr cinfo, backing_store_ptr info, - void FAR * buffer_address, - long file_offset, long byte_count) -{ - XMScontext ctx; - XMSspec spec; - char endbuffer[2]; - - /* The XMS driver can't cope with an odd length, so handle the last byte - * specially if byte_count is odd. We don't expect this to be common. - */ - - spec.length = byte_count & (~ 1L); - spec.src_handle = 0; - spec.src.ptr = buffer_address; - spec.dst_handle = info->handle.xms_handle; - spec.dst.offset = file_offset; - - ctx.ds_si = (void far *) & spec; - ctx.ax = 0x0b00; /* EMB move */ - jxms_calldriver(xms_driver, (XMScontext far *) & ctx); - if (ctx.ax != 1) - ERREXIT(cinfo, JERR_XMS_WRITE); - - if (ODD(byte_count)) { - read_xms_store(cinfo, info, (void FAR *) endbuffer, - file_offset + byte_count - 1L, 2L); - endbuffer[0] = ((char FAR *) buffer_address)[byte_count - 1L]; - write_xms_store(cinfo, info, (void FAR *) endbuffer, - file_offset + byte_count - 1L, 2L); - } -} - - -METHODDEF(void) -close_xms_store (j_common_ptr cinfo, backing_store_ptr info) -{ - XMScontext ctx; - - ctx.dx = info->handle.xms_handle; - ctx.ax = 0x0a00; - jxms_calldriver(xms_driver, (XMScontext far *) & ctx); - TRACEMS1(cinfo, 1, JTRC_XMS_CLOSE, info->handle.xms_handle); - /* we ignore any error return from the driver */ -} - - -LOCAL(boolean) -open_xms_store (j_common_ptr cinfo, backing_store_ptr info, - long total_bytes_needed) -{ - XMScontext ctx; - - /* Get address of XMS driver */ - jxms_getdriver((XMSDRIVER far *) & xms_driver); - if (xms_driver == NULL) - return FALSE; /* no driver to be had */ - - /* Get version number, must be >= 2.00 */ - ctx.ax = 0x0000; - jxms_calldriver(xms_driver, (XMScontext far *) & ctx); - if (ctx.ax < (unsigned short) 0x0200) - return FALSE; - - /* Try to get space (expressed in kilobytes) */ - ctx.dx = (unsigned short) ((total_bytes_needed + 1023L) >> 10); - ctx.ax = 0x0900; - jxms_calldriver(xms_driver, (XMScontext far *) & ctx); - if (ctx.ax != 1) - return FALSE; - - /* Succeeded, save the handle and away we go */ - info->handle.xms_handle = ctx.dx; - info->read_backing_store = read_xms_store; - info->write_backing_store = write_xms_store; - info->close_backing_store = close_xms_store; - TRACEMS1(cinfo, 1, JTRC_XMS_OPEN, ctx.dx); - return TRUE; /* succeeded */ -} - -#endif /* XMS_SUPPORTED */ - - -/* - * Access methods for expanded memory. - */ - -#if EMS_SUPPORTED - -/* The EMS move specification structure requires word and long fields aligned - * at odd byte boundaries. Some compilers will align struct fields at even - * byte boundaries. While it's usually possible to force byte alignment, - * that causes an overall performance penalty and may pose problems in merging - * JPEG into a larger application. Instead we accept some rather dirty code - * here. Note this code would fail if the hardware did not allow odd-byte - * word & long accesses, but all 80x86 CPUs do. - */ - -typedef void far * EMSPTR; - -typedef union { /* EMS move specification structure */ - long length; /* It's easy to access first 4 bytes */ - char bytes[18]; /* Misaligned fields in here! */ - } EMSspec; - -/* Macros for accessing misaligned fields */ -#define FIELD_AT(spec,offset,type) (*((type *) &(spec.bytes[offset]))) -#define SRC_TYPE(spec) FIELD_AT(spec,4,char) -#define SRC_HANDLE(spec) FIELD_AT(spec,5,EMSH) -#define SRC_OFFSET(spec) FIELD_AT(spec,7,unsigned short) -#define SRC_PAGE(spec) FIELD_AT(spec,9,unsigned short) -#define SRC_PTR(spec) FIELD_AT(spec,7,EMSPTR) -#define DST_TYPE(spec) FIELD_AT(spec,11,char) -#define DST_HANDLE(spec) FIELD_AT(spec,12,EMSH) -#define DST_OFFSET(spec) FIELD_AT(spec,14,unsigned short) -#define DST_PAGE(spec) FIELD_AT(spec,16,unsigned short) -#define DST_PTR(spec) FIELD_AT(spec,14,EMSPTR) - -#define EMSPAGESIZE 16384L /* gospel, see the EMS specs */ - -#define HIBYTE(W) (((W) >> 8) & 0xFF) -#define LOBYTE(W) ((W) & 0xFF) - - -METHODDEF(void) -read_ems_store (j_common_ptr cinfo, backing_store_ptr info, - void FAR * buffer_address, - long file_offset, long byte_count) -{ - EMScontext ctx; - EMSspec spec; - - spec.length = byte_count; - SRC_TYPE(spec) = 1; - SRC_HANDLE(spec) = info->handle.ems_handle; - SRC_PAGE(spec) = (unsigned short) (file_offset / EMSPAGESIZE); - SRC_OFFSET(spec) = (unsigned short) (file_offset % EMSPAGESIZE); - DST_TYPE(spec) = 0; - DST_HANDLE(spec) = 0; - DST_PTR(spec) = buffer_address; - - ctx.ds_si = (void far *) & spec; - ctx.ax = 0x5700; /* move memory region */ - jems_calldriver((EMScontext far *) & ctx); - if (HIBYTE(ctx.ax) != 0) - ERREXIT(cinfo, JERR_EMS_READ); -} - - -METHODDEF(void) -write_ems_store (j_common_ptr cinfo, backing_store_ptr info, - void FAR * buffer_address, - long file_offset, long byte_count) -{ - EMScontext ctx; - EMSspec spec; - - spec.length = byte_count; - SRC_TYPE(spec) = 0; - SRC_HANDLE(spec) = 0; - SRC_PTR(spec) = buffer_address; - DST_TYPE(spec) = 1; - DST_HANDLE(spec) = info->handle.ems_handle; - DST_PAGE(spec) = (unsigned short) (file_offset / EMSPAGESIZE); - DST_OFFSET(spec) = (unsigned short) (file_offset % EMSPAGESIZE); - - ctx.ds_si = (void far *) & spec; - ctx.ax = 0x5700; /* move memory region */ - jems_calldriver((EMScontext far *) & ctx); - if (HIBYTE(ctx.ax) != 0) - ERREXIT(cinfo, JERR_EMS_WRITE); -} - - -METHODDEF(void) -close_ems_store (j_common_ptr cinfo, backing_store_ptr info) -{ - EMScontext ctx; - - ctx.ax = 0x4500; - ctx.dx = info->handle.ems_handle; - jems_calldriver((EMScontext far *) & ctx); - TRACEMS1(cinfo, 1, JTRC_EMS_CLOSE, info->handle.ems_handle); - /* we ignore any error return from the driver */ -} - - -LOCAL(boolean) -open_ems_store (j_common_ptr cinfo, backing_store_ptr info, - long total_bytes_needed) -{ - EMScontext ctx; - - /* Is EMS driver there? */ - if (! jems_available()) - return FALSE; - - /* Get status, make sure EMS is OK */ - ctx.ax = 0x4000; - jems_calldriver((EMScontext far *) & ctx); - if (HIBYTE(ctx.ax) != 0) - return FALSE; - - /* Get version, must be >= 4.0 */ - ctx.ax = 0x4600; - jems_calldriver((EMScontext far *) & ctx); - if (HIBYTE(ctx.ax) != 0 || LOBYTE(ctx.ax) < 0x40) - return FALSE; - - /* Try to allocate requested space */ - ctx.ax = 0x4300; - ctx.bx = (unsigned short) ((total_bytes_needed + EMSPAGESIZE-1L) / EMSPAGESIZE); - jems_calldriver((EMScontext far *) & ctx); - if (HIBYTE(ctx.ax) != 0) - return FALSE; - - /* Succeeded, save the handle and away we go */ - info->handle.ems_handle = ctx.dx; - info->read_backing_store = read_ems_store; - info->write_backing_store = write_ems_store; - info->close_backing_store = close_ems_store; - TRACEMS1(cinfo, 1, JTRC_EMS_OPEN, ctx.dx); - return TRUE; /* succeeded */ -} - -#endif /* EMS_SUPPORTED */ - - -/* - * Initial opening of a backing-store object. - */ - -GLOBAL(void) -jpeg_open_backing_store (j_common_ptr cinfo, backing_store_ptr info, - long total_bytes_needed) -{ - /* Try extended memory, then expanded memory, then regular file. */ -#if XMS_SUPPORTED - if (open_xms_store(cinfo, info, total_bytes_needed)) - return; -#endif -#if EMS_SUPPORTED - if (open_ems_store(cinfo, info, total_bytes_needed)) - return; -#endif - if (open_file_store(cinfo, info, total_bytes_needed)) - return; - ERREXITS(cinfo, JERR_TFILE_CREATE, ""); -} - - -/* - * These routines take care of any system-dependent initialization and - * cleanup required. - */ - -GLOBAL(long) -jpeg_mem_init (j_common_ptr cinfo) -{ - next_file_num = 0; /* initialize temp file name generator */ - return DEFAULT_MAX_MEM; /* default for max_memory_to_use */ -} - -GLOBAL(void) -jpeg_mem_term (j_common_ptr cinfo) -{ - /* Microsoft C, at least in v6.00A, will not successfully reclaim freed - * blocks of size > 32Kbytes unless we give it a kick in the rear, like so: - */ -#ifdef NEED_FHEAPMIN - _fheapmin(); -#endif -} diff --git a/jpg/jmemdosa.asm b/jpg/jmemdosa.asm deleted file mode 100644 index ecd4372..0000000 --- a/jpg/jmemdosa.asm +++ /dev/null @@ -1,379 +0,0 @@ -; -; jmemdosa.asm -; -; Copyright (C) 1992, Thomas G. Lane. -; This file is part of the Independent JPEG Group's software. -; For conditions of distribution and use, see the accompanying README file. -; -; This file contains low-level interface routines to support the MS-DOS -; backing store manager (jmemdos.c). Routines are provided to access disk -; files through direct DOS calls, and to access XMS and EMS drivers. -; -; This file should assemble with Microsoft's MASM or any compatible -; assembler (including Borland's Turbo Assembler). If you haven't got -; a compatible assembler, better fall back to jmemansi.c or jmemname.c. -; -; To minimize dependence on the C compiler's register usage conventions, -; we save and restore all 8086 registers, even though most compilers only -; require SI,DI,DS to be preserved. Also, we use only 16-bit-wide return -; values, which everybody returns in AX. -; -; Based on code contributed by Ge' Weijers. -; - -JMEMDOSA_TXT segment byte public 'CODE' - - assume cs:JMEMDOSA_TXT - - public _jdos_open - public _jdos_close - public _jdos_seek - public _jdos_read - public _jdos_write - public _jxms_getdriver - public _jxms_calldriver - public _jems_available - public _jems_calldriver - -; -; short far jdos_open (short far * handle, char far * filename) -; -; Create and open a temporary file -; -_jdos_open proc far - push bp ; linkage - mov bp,sp - push si ; save all registers for safety - push di - push bx - push cx - push dx - push es - push ds - mov cx,0 ; normal file attributes - lds dx,dword ptr [bp+10] ; get filename pointer - mov ah,3ch ; create file - int 21h - jc open_err ; if failed, return error code - lds bx,dword ptr [bp+6] ; get handle pointer - mov word ptr [bx],ax ; save the handle - xor ax,ax ; return zero for OK -open_err: pop ds ; restore registers and exit - pop es - pop dx - pop cx - pop bx - pop di - pop si - pop bp - ret -_jdos_open endp - - -; -; short far jdos_close (short handle) -; -; Close the file handle -; -_jdos_close proc far - push bp ; linkage - mov bp,sp - push si ; save all registers for safety - push di - push bx - push cx - push dx - push es - push ds - mov bx,word ptr [bp+6] ; file handle - mov ah,3eh ; close file - int 21h - jc close_err ; if failed, return error code - xor ax,ax ; return zero for OK -close_err: pop ds ; restore registers and exit - pop es - pop dx - pop cx - pop bx - pop di - pop si - pop bp - ret -_jdos_close endp - - -; -; short far jdos_seek (short handle, long offset) -; -; Set file position -; -_jdos_seek proc far - push bp ; linkage - mov bp,sp - push si ; save all registers for safety - push di - push bx - push cx - push dx - push es - push ds - mov bx,word ptr [bp+6] ; file handle - mov dx,word ptr [bp+8] ; LS offset - mov cx,word ptr [bp+10] ; MS offset - mov ax,4200h ; absolute seek - int 21h - jc seek_err ; if failed, return error code - xor ax,ax ; return zero for OK -seek_err: pop ds ; restore registers and exit - pop es - pop dx - pop cx - pop bx - pop di - pop si - pop bp - ret -_jdos_seek endp - - -; -; short far jdos_read (short handle, void far * buffer, unsigned short count) -; -; Read from file -; -_jdos_read proc far - push bp ; linkage - mov bp,sp - push si ; save all registers for safety - push di - push bx - push cx - push dx - push es - push ds - mov bx,word ptr [bp+6] ; file handle - lds dx,dword ptr [bp+8] ; buffer address - mov cx,word ptr [bp+12] ; number of bytes - mov ah,3fh ; read file - int 21h - jc read_err ; if failed, return error code - cmp ax,word ptr [bp+12] ; make sure all bytes were read - je read_ok - mov ax,1 ; else return 1 for not OK - jmp short read_err -read_ok: xor ax,ax ; return zero for OK -read_err: pop ds ; restore registers and exit - pop es - pop dx - pop cx - pop bx - pop di - pop si - pop bp - ret -_jdos_read endp - - -; -; short far jdos_write (short handle, void far * buffer, unsigned short count) -; -; Write to file -; -_jdos_write proc far - push bp ; linkage - mov bp,sp - push si ; save all registers for safety - push di - push bx - push cx - push dx - push es - push ds - mov bx,word ptr [bp+6] ; file handle - lds dx,dword ptr [bp+8] ; buffer address - mov cx,word ptr [bp+12] ; number of bytes - mov ah,40h ; write file - int 21h - jc write_err ; if failed, return error code - cmp ax,word ptr [bp+12] ; make sure all bytes written - je write_ok - mov ax,1 ; else return 1 for not OK - jmp short write_err -write_ok: xor ax,ax ; return zero for OK -write_err: pop ds ; restore registers and exit - pop es - pop dx - pop cx - pop bx - pop di - pop si - pop bp - ret -_jdos_write endp - - -; -; void far jxms_getdriver (XMSDRIVER far *) -; -; Get the address of the XMS driver, or NULL if not available -; -_jxms_getdriver proc far - push bp ; linkage - mov bp,sp - push si ; save all registers for safety - push di - push bx - push cx - push dx - push es - push ds - mov ax,4300h ; call multiplex interrupt with - int 2fh ; a magic cookie, hex 4300 - cmp al,80h ; AL should contain hex 80 - je xmsavail - xor dx,dx ; no XMS driver available - xor ax,ax ; return a nil pointer - jmp short xmsavail_done -xmsavail: mov ax,4310h ; fetch driver address with - int 2fh ; another magic cookie - mov dx,es ; copy address to dx:ax - mov ax,bx -xmsavail_done: les bx,dword ptr [bp+6] ; get pointer to return value - mov word ptr es:[bx],ax - mov word ptr es:[bx+2],dx - pop ds ; restore registers and exit - pop es - pop dx - pop cx - pop bx - pop di - pop si - pop bp - ret -_jxms_getdriver endp - - -; -; void far jxms_calldriver (XMSDRIVER, XMScontext far *) -; -; The XMScontext structure contains values for the AX,DX,BX,SI,DS registers. -; These are loaded, the XMS call is performed, and the new values of the -; AX,DX,BX registers are written back to the context structure. -; -_jxms_calldriver proc far - push bp ; linkage - mov bp,sp - push si ; save all registers for safety - push di - push bx - push cx - push dx - push es - push ds - les bx,dword ptr [bp+10] ; get XMScontext pointer - mov ax,word ptr es:[bx] ; load registers - mov dx,word ptr es:[bx+2] - mov si,word ptr es:[bx+6] - mov ds,word ptr es:[bx+8] - mov bx,word ptr es:[bx+4] - call dword ptr [bp+6] ; call the driver - mov cx,bx ; save returned BX for a sec - les bx,dword ptr [bp+10] ; get XMScontext pointer - mov word ptr es:[bx],ax ; put back ax,dx,bx - mov word ptr es:[bx+2],dx - mov word ptr es:[bx+4],cx - pop ds ; restore registers and exit - pop es - pop dx - pop cx - pop bx - pop di - pop si - pop bp - ret -_jxms_calldriver endp - - -; -; short far jems_available (void) -; -; Have we got an EMS driver? (this comes straight from the EMS 4.0 specs) -; -_jems_available proc far - push si ; save all registers for safety - push di - push bx - push cx - push dx - push es - push ds - mov ax,3567h ; get interrupt vector 67h - int 21h - push cs - pop ds - mov di,000ah ; check offs 10 in returned seg - lea si,ASCII_device_name ; against literal string - mov cx,8 - cld - repe cmpsb - jne no_ems - mov ax,1 ; match, it's there - jmp short avail_done -no_ems: xor ax,ax ; it's not there -avail_done: pop ds ; restore registers and exit - pop es - pop dx - pop cx - pop bx - pop di - pop si - ret - -ASCII_device_name db "EMMXXXX0" - -_jems_available endp - - -; -; void far jems_calldriver (EMScontext far *) -; -; The EMScontext structure contains values for the AX,DX,BX,SI,DS registers. -; These are loaded, the EMS trap is performed, and the new values of the -; AX,DX,BX registers are written back to the context structure. -; -_jems_calldriver proc far - push bp ; linkage - mov bp,sp - push si ; save all registers for safety - push di - push bx - push cx - push dx - push es - push ds - les bx,dword ptr [bp+6] ; get EMScontext pointer - mov ax,word ptr es:[bx] ; load registers - mov dx,word ptr es:[bx+2] - mov si,word ptr es:[bx+6] - mov ds,word ptr es:[bx+8] - mov bx,word ptr es:[bx+4] - int 67h ; call the EMS driver - mov cx,bx ; save returned BX for a sec - les bx,dword ptr [bp+6] ; get EMScontext pointer - mov word ptr es:[bx],ax ; put back ax,dx,bx - mov word ptr es:[bx+2],dx - mov word ptr es:[bx+4],cx - pop ds ; restore registers and exit - pop es - pop dx - pop cx - pop bx - pop di - pop si - pop bp - ret -_jems_calldriver endp - -JMEMDOSA_TXT ends - - end diff --git a/jpg/jmemmac.c b/jpg/jmemmac.c deleted file mode 100644 index 106f9be..0000000 --- a/jpg/jmemmac.c +++ /dev/null @@ -1,289 +0,0 @@ -/* - * jmemmac.c - * - * Copyright (C) 1992-1997, Thomas G. Lane. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * jmemmac.c provides an Apple Macintosh implementation of the system- - * dependent portion of the JPEG memory manager. - * - * If you use jmemmac.c, then you must define USE_MAC_MEMMGR in the - * JPEG_INTERNALS part of jconfig.h. - * - * jmemmac.c uses the Macintosh toolbox routines NewPtr and DisposePtr - * instead of malloc and free. It accurately determines the amount of - * memory available by using CompactMem. Notice that if left to its - * own devices, this code can chew up all available space in the - * application's zone, with the exception of the rather small "slop" - * factor computed in jpeg_mem_available(). The application can ensure - * that more space is left over by reducing max_memory_to_use. - * - * Large images are swapped to disk using temporary files and System 7.0+'s - * temporary folder functionality. - * - * Note that jmemmac.c depends on two features of MacOS that were first - * introduced in System 7: FindFolder and the FSSpec-based calls. - * If your application uses jmemmac.c and is run under System 6 or earlier, - * and the jpeg library decides it needs a temporary file, it will abort, - * printing error messages about requiring System 7. (If no temporary files - * are created, it will run fine.) - * - * If you want to use jmemmac.c in an application that might be used with - * System 6 or earlier, then you should remove dependencies on FindFolder - * and the FSSpec calls. You will need to replace FindFolder with some - * other mechanism for finding a place to put temporary files, and you - * should replace the FSSpec calls with their HFS equivalents: - * - * FSpDelete -> HDelete - * FSpGetFInfo -> HGetFInfo - * FSpCreate -> HCreate - * FSpOpenDF -> HOpen *** Note: not HOpenDF *** - * FSMakeFSSpec -> (fill in spec by hand.) - * - * (Use HOpen instead of HOpenDF. HOpen is just a glue-interface to PBHOpen, - * which is on all HFS macs. HOpenDF is a System 7 addition which avoids the - * ages-old problem of names starting with a period.) - * - * Contributed by Sam Bushell (jsam@iagu.on.net) and - * Dan Gildor (gyld@in-touch.com). - */ - -#define JPEG_INTERNALS -#include "jinclude.h" -#include "jpeglib.h" -#include "jmemsys.h" /* import the system-dependent declarations */ - -#ifndef USE_MAC_MEMMGR /* make sure user got configuration right */ - You forgot to define USE_MAC_MEMMGR in jconfig.h. /* deliberate syntax error */ -#endif - -#include /* we use the MacOS memory manager */ -#include /* we use the MacOS File stuff */ -#include /* we use the MacOS HFS stuff */ -#include /* for smSystemScript */ -#include /* we use Gestalt to test for specific functionality */ - -#ifndef TEMP_FILE_NAME /* can override from jconfig.h or Makefile */ -#define TEMP_FILE_NAME "JPG%03d.TMP" -#endif - -static int next_file_num; /* to distinguish among several temp files */ - - -/* - * Memory allocation and freeing are controlled by the MacOS library - * routines NewPtr() and DisposePtr(), which allocate fixed-address - * storage. Unfortunately, the IJG library isn't smart enough to cope - * with relocatable storage. - */ - -GLOBAL(void *) -jpeg_get_small (j_common_ptr cinfo, size_t sizeofobject) -{ - return (void *) NewPtr(sizeofobject); -} - -GLOBAL(void) -jpeg_free_small (j_common_ptr cinfo, void * object, size_t sizeofobject) -{ - DisposePtr((Ptr) object); -} - - -/* - * "Large" objects are treated the same as "small" ones. - * NB: we include FAR keywords in the routine declarations simply for - * consistency with the rest of the IJG code; FAR should expand to empty - * on rational architectures like the Mac. - */ - -GLOBAL(void FAR *) -jpeg_get_large (j_common_ptr cinfo, size_t sizeofobject) -{ - return (void FAR *) NewPtr(sizeofobject); -} - -GLOBAL(void) -jpeg_free_large (j_common_ptr cinfo, void FAR * object, size_t sizeofobject) -{ - DisposePtr((Ptr) object); -} - - -/* - * This routine computes the total memory space available for allocation. - */ - -GLOBAL(long) -jpeg_mem_available (j_common_ptr cinfo, long min_bytes_needed, - long max_bytes_needed, long already_allocated) -{ - long limit = cinfo->mem->max_memory_to_use - already_allocated; - long slop, mem; - - /* Don't ask for more than what application has told us we may use */ - if (max_bytes_needed > limit && limit > 0) - max_bytes_needed = limit; - /* Find whether there's a big enough free block in the heap. - * CompactMem tries to create a contiguous block of the requested size, - * and then returns the size of the largest free block (which could be - * much more or much less than we asked for). - * We add some slop to ensure we don't use up all available memory. - */ - slop = max_bytes_needed / 16 + 32768L; - mem = CompactMem(max_bytes_needed + slop) - slop; - if (mem < 0) - mem = 0; /* sigh, couldn't even get the slop */ - /* Don't take more than the application says we can have */ - if (mem > limit && limit > 0) - mem = limit; - return mem; -} - - -/* - * Backing store (temporary file) management. - * Backing store objects are only used when the value returned by - * jpeg_mem_available is less than the total space needed. You can dispense - * with these routines if you have plenty of virtual memory; see jmemnobs.c. - */ - - -METHODDEF(void) -read_backing_store (j_common_ptr cinfo, backing_store_ptr info, - void FAR * buffer_address, - long file_offset, long byte_count) -{ - long bytes = byte_count; - long retVal; - - if ( SetFPos ( info->temp_file, fsFromStart, file_offset ) != noErr ) - ERREXIT(cinfo, JERR_TFILE_SEEK); - - retVal = FSRead ( info->temp_file, &bytes, - (unsigned char *) buffer_address ); - if ( retVal != noErr || bytes != byte_count ) - ERREXIT(cinfo, JERR_TFILE_READ); -} - - -METHODDEF(void) -write_backing_store (j_common_ptr cinfo, backing_store_ptr info, - void FAR * buffer_address, - long file_offset, long byte_count) -{ - long bytes = byte_count; - long retVal; - - if ( SetFPos ( info->temp_file, fsFromStart, file_offset ) != noErr ) - ERREXIT(cinfo, JERR_TFILE_SEEK); - - retVal = FSWrite ( info->temp_file, &bytes, - (unsigned char *) buffer_address ); - if ( retVal != noErr || bytes != byte_count ) - ERREXIT(cinfo, JERR_TFILE_WRITE); -} - - -METHODDEF(void) -close_backing_store (j_common_ptr cinfo, backing_store_ptr info) -{ - FSClose ( info->temp_file ); - FSpDelete ( &(info->tempSpec) ); -} - - -/* - * Initial opening of a backing-store object. - * - * This version uses FindFolder to find the Temporary Items folder, - * and puts the temporary file in there. - */ - -GLOBAL(void) -jpeg_open_backing_store (j_common_ptr cinfo, backing_store_ptr info, - long total_bytes_needed) -{ - short tmpRef, vRefNum; - long dirID; - FInfo finderInfo; - FSSpec theSpec; - Str255 fName; - OSErr osErr; - long gestaltResponse = 0; - - /* Check that FSSpec calls are available. */ - osErr = Gestalt( gestaltFSAttr, &gestaltResponse ); - if ( ( osErr != noErr ) - || !( gestaltResponse & (1<temp_name, TEMP_FILE_NAME, next_file_num); - strcpy ( (Ptr)fName+1, info->temp_name ); - *fName = strlen (info->temp_name); - osErr = FSMakeFSSpec ( vRefNum, dirID, fName, &theSpec ); - - if ( (osErr = FSpGetFInfo ( &theSpec, &finderInfo ) ) != noErr ) - break; - } - - osErr = FSpCreate ( &theSpec, '????', '????', smSystemScript ); - if ( osErr != noErr ) - ERREXITS(cinfo, JERR_TFILE_CREATE, info->temp_name); - - osErr = FSpOpenDF ( &theSpec, fsRdWrPerm, &(info->temp_file) ); - if ( osErr != noErr ) - ERREXITS(cinfo, JERR_TFILE_CREATE, info->temp_name); - - info->tempSpec = theSpec; - - info->read_backing_store = read_backing_store; - info->write_backing_store = write_backing_store; - info->close_backing_store = close_backing_store; - TRACEMSS(cinfo, 1, JTRC_TFILE_OPEN, info->temp_name); -} - - -/* - * These routines take care of any system-dependent initialization and - * cleanup required. - */ - -GLOBAL(long) -jpeg_mem_init (j_common_ptr cinfo) -{ - next_file_num = 0; - - /* max_memory_to_use will be initialized to FreeMem()'s result; - * the calling application might later reduce it, for example - * to leave room to invoke multiple JPEG objects. - * Note that FreeMem returns the total number of free bytes; - * it may not be possible to allocate a single block of this size. - */ - return FreeMem(); -} - -GLOBAL(void) -jpeg_mem_term (j_common_ptr cinfo) -{ - /* no work */ -} diff --git a/jpg/jmemmgr.c b/jpg/jmemmgr.c deleted file mode 100644 index f0e83fb..0000000 --- a/jpg/jmemmgr.c +++ /dev/null @@ -1,1119 +0,0 @@ -/* - * jmemmgr.c - * - * Copyright (C) 1991-1997, Thomas G. Lane. - * Modified 2011 by Guido Vollbeding. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file contains the JPEG system-independent memory management - * routines. This code is usable across a wide variety of machines; most - * of the system dependencies have been isolated in a separate file. - * The major functions provided here are: - * * pool-based allocation and freeing of memory; - * * policy decisions about how to divide available memory among the - * virtual arrays; - * * control logic for swapping virtual arrays between main memory and - * backing storage. - * The separate system-dependent file provides the actual backing-storage - * access code, and it contains the policy decision about how much total - * main memory to use. - * This file is system-dependent in the sense that some of its functions - * are unnecessary in some systems. For example, if there is enough virtual - * memory so that backing storage will never be used, much of the virtual - * array control logic could be removed. (Of course, if you have that much - * memory then you shouldn't care about a little bit of unused code...) - */ - -#define JPEG_INTERNALS -#define AM_MEMORY_MANAGER /* we define jvirt_Xarray_control structs */ -#include "jinclude.h" -#include "jpeglib.h" -#include "jmemsys.h" /* import the system-dependent declarations */ - -#ifndef NO_GETENV -#ifndef HAVE_STDLIB_H /* should declare getenv() */ -extern char * getenv JPP((const char * name)); -#endif -#endif - - -/* - * Some important notes: - * The allocation routines provided here must never return NULL. - * They should exit to error_exit if unsuccessful. - * - * It's not a good idea to try to merge the sarray and barray routines, - * even though they are textually almost the same, because samples are - * usually stored as bytes while coefficients are shorts or ints. Thus, - * in machines where byte pointers have a different representation from - * word pointers, the resulting machine code could not be the same. - */ - - -/* - * Many machines require storage alignment: longs must start on 4-byte - * boundaries, doubles on 8-byte boundaries, etc. On such machines, malloc() - * always returns pointers that are multiples of the worst-case alignment - * requirement, and we had better do so too. - * There isn't any really portable way to determine the worst-case alignment - * requirement. This module assumes that the alignment requirement is - * multiples of sizeof(ALIGN_TYPE). - * By default, we define ALIGN_TYPE as double. This is necessary on some - * workstations (where doubles really do need 8-byte alignment) and will work - * fine on nearly everything. If your machine has lesser alignment needs, - * you can save a few bytes by making ALIGN_TYPE smaller. - * The only place I know of where this will NOT work is certain Macintosh - * 680x0 compilers that define double as a 10-byte IEEE extended float. - * Doing 10-byte alignment is counterproductive because longwords won't be - * aligned well. Put "#define ALIGN_TYPE long" in jconfig.h if you have - * such a compiler. - */ - -#ifndef ALIGN_TYPE /* so can override from jconfig.h */ -#define ALIGN_TYPE double -#endif - - -/* - * We allocate objects from "pools", where each pool is gotten with a single - * request to jpeg_get_small() or jpeg_get_large(). There is no per-object - * overhead within a pool, except for alignment padding. Each pool has a - * header with a link to the next pool of the same class. - * Small and large pool headers are identical except that the latter's - * link pointer must be FAR on 80x86 machines. - * Notice that the "real" header fields are union'ed with a dummy ALIGN_TYPE - * field. This forces the compiler to make SIZEOF(small_pool_hdr) a multiple - * of the alignment requirement of ALIGN_TYPE. - */ - -typedef union small_pool_struct * small_pool_ptr; - -typedef union small_pool_struct { - struct { - small_pool_ptr next; /* next in list of pools */ - size_t bytes_used; /* how many bytes already used within pool */ - size_t bytes_left; /* bytes still available in this pool */ - } hdr; - ALIGN_TYPE dummy; /* included in union to ensure alignment */ -} small_pool_hdr; - -typedef union large_pool_struct FAR * large_pool_ptr; - -typedef union large_pool_struct { - struct { - large_pool_ptr next; /* next in list of pools */ - size_t bytes_used; /* how many bytes already used within pool */ - size_t bytes_left; /* bytes still available in this pool */ - } hdr; - ALIGN_TYPE dummy; /* included in union to ensure alignment */ -} large_pool_hdr; - - -/* - * Here is the full definition of a memory manager object. - */ - -typedef struct { - struct jpeg_memory_mgr pub; /* public fields */ - - /* Each pool identifier (lifetime class) names a linked list of pools. */ - small_pool_ptr small_list[JPOOL_NUMPOOLS]; - large_pool_ptr large_list[JPOOL_NUMPOOLS]; - - /* Since we only have one lifetime class of virtual arrays, only one - * linked list is necessary (for each datatype). Note that the virtual - * array control blocks being linked together are actually stored somewhere - * in the small-pool list. - */ - jvirt_sarray_ptr virt_sarray_list; - jvirt_barray_ptr virt_barray_list; - - /* This counts total space obtained from jpeg_get_small/large */ - long total_space_allocated; - - /* alloc_sarray and alloc_barray set this value for use by virtual - * array routines. - */ - JDIMENSION last_rowsperchunk; /* from most recent alloc_sarray/barray */ -} my_memory_mgr; - -typedef my_memory_mgr * my_mem_ptr; - - -/* - * The control blocks for virtual arrays. - * Note that these blocks are allocated in the "small" pool area. - * System-dependent info for the associated backing store (if any) is hidden - * inside the backing_store_info struct. - */ - -struct jvirt_sarray_control { - JSAMPARRAY mem_buffer; /* => the in-memory buffer */ - JDIMENSION rows_in_array; /* total virtual array height */ - JDIMENSION samplesperrow; /* width of array (and of memory buffer) */ - JDIMENSION maxaccess; /* max rows accessed by access_virt_sarray */ - JDIMENSION rows_in_mem; /* height of memory buffer */ - JDIMENSION rowsperchunk; /* allocation chunk size in mem_buffer */ - JDIMENSION cur_start_row; /* first logical row # in the buffer */ - JDIMENSION first_undef_row; /* row # of first uninitialized row */ - boolean pre_zero; /* pre-zero mode requested? */ - boolean dirty; /* do current buffer contents need written? */ - boolean b_s_open; /* is backing-store data valid? */ - jvirt_sarray_ptr next; /* link to next virtual sarray control block */ - backing_store_info b_s_info; /* System-dependent control info */ -}; - -struct jvirt_barray_control { - JBLOCKARRAY mem_buffer; /* => the in-memory buffer */ - JDIMENSION rows_in_array; /* total virtual array height */ - JDIMENSION blocksperrow; /* width of array (and of memory buffer) */ - JDIMENSION maxaccess; /* max rows accessed by access_virt_barray */ - JDIMENSION rows_in_mem; /* height of memory buffer */ - JDIMENSION rowsperchunk; /* allocation chunk size in mem_buffer */ - JDIMENSION cur_start_row; /* first logical row # in the buffer */ - JDIMENSION first_undef_row; /* row # of first uninitialized row */ - boolean pre_zero; /* pre-zero mode requested? */ - boolean dirty; /* do current buffer contents need written? */ - boolean b_s_open; /* is backing-store data valid? */ - jvirt_barray_ptr next; /* link to next virtual barray control block */ - backing_store_info b_s_info; /* System-dependent control info */ -}; - - -#ifdef MEM_STATS /* optional extra stuff for statistics */ - -LOCAL(void) -print_mem_stats (j_common_ptr cinfo, int pool_id) -{ - my_mem_ptr mem = (my_mem_ptr) cinfo->mem; - small_pool_ptr shdr_ptr; - large_pool_ptr lhdr_ptr; - - /* Since this is only a debugging stub, we can cheat a little by using - * fprintf directly rather than going through the trace message code. - * This is helpful because message parm array can't handle longs. - */ - fprintf(stderr, "Freeing pool %d, total space = %ld\n", - pool_id, mem->total_space_allocated); - - for (lhdr_ptr = mem->large_list[pool_id]; lhdr_ptr != NULL; - lhdr_ptr = lhdr_ptr->hdr.next) { - fprintf(stderr, " Large chunk used %ld\n", - (long) lhdr_ptr->hdr.bytes_used); - } - - for (shdr_ptr = mem->small_list[pool_id]; shdr_ptr != NULL; - shdr_ptr = shdr_ptr->hdr.next) { - fprintf(stderr, " Small chunk used %ld free %ld\n", - (long) shdr_ptr->hdr.bytes_used, - (long) shdr_ptr->hdr.bytes_left); - } -} - -#endif /* MEM_STATS */ - - -LOCAL(void) -out_of_memory (j_common_ptr cinfo, int which) -/* Report an out-of-memory error and stop execution */ -/* If we compiled MEM_STATS support, report alloc requests before dying */ -{ -#ifdef MEM_STATS - cinfo->err->trace_level = 2; /* force self_destruct to report stats */ -#endif - ERREXIT1(cinfo, JERR_OUT_OF_MEMORY, which); -} - - -/* - * Allocation of "small" objects. - * - * For these, we use pooled storage. When a new pool must be created, - * we try to get enough space for the current request plus a "slop" factor, - * where the slop will be the amount of leftover space in the new pool. - * The speed vs. space tradeoff is largely determined by the slop values. - * A different slop value is provided for each pool class (lifetime), - * and we also distinguish the first pool of a class from later ones. - * NOTE: the values given work fairly well on both 16- and 32-bit-int - * machines, but may be too small if longs are 64 bits or more. - */ - -static const size_t first_pool_slop[JPOOL_NUMPOOLS] = -{ - 1600, /* first PERMANENT pool */ - 16000 /* first IMAGE pool */ -}; - -static const size_t extra_pool_slop[JPOOL_NUMPOOLS] = -{ - 0, /* additional PERMANENT pools */ - 5000 /* additional IMAGE pools */ -}; - -#define MIN_SLOP 50 /* greater than 0 to avoid futile looping */ - - -METHODDEF(void *) -alloc_small (j_common_ptr cinfo, int pool_id, size_t sizeofobject) -/* Allocate a "small" object */ -{ - my_mem_ptr mem = (my_mem_ptr) cinfo->mem; - small_pool_ptr hdr_ptr, prev_hdr_ptr; - char * data_ptr; - size_t odd_bytes, min_request, slop; - - /* Check for unsatisfiable request (do now to ensure no overflow below) */ - if (sizeofobject > (size_t) (MAX_ALLOC_CHUNK-SIZEOF(small_pool_hdr))) - out_of_memory(cinfo, 1); /* request exceeds malloc's ability */ - - /* Round up the requested size to a multiple of SIZEOF(ALIGN_TYPE) */ - odd_bytes = sizeofobject % SIZEOF(ALIGN_TYPE); - if (odd_bytes > 0) - sizeofobject += SIZEOF(ALIGN_TYPE) - odd_bytes; - - /* See if space is available in any existing pool */ - if (pool_id < 0 || pool_id >= JPOOL_NUMPOOLS) - ERREXIT1(cinfo, JERR_BAD_POOL_ID, pool_id); /* safety check */ - prev_hdr_ptr = NULL; - hdr_ptr = mem->small_list[pool_id]; - while (hdr_ptr != NULL) { - if (hdr_ptr->hdr.bytes_left >= sizeofobject) - break; /* found pool with enough space */ - prev_hdr_ptr = hdr_ptr; - hdr_ptr = hdr_ptr->hdr.next; - } - - /* Time to make a new pool? */ - if (hdr_ptr == NULL) { - /* min_request is what we need now, slop is what will be leftover */ - min_request = sizeofobject + SIZEOF(small_pool_hdr); - if (prev_hdr_ptr == NULL) /* first pool in class? */ - slop = first_pool_slop[pool_id]; - else - slop = extra_pool_slop[pool_id]; - /* Don't ask for more than MAX_ALLOC_CHUNK */ - if (slop > (size_t) (MAX_ALLOC_CHUNK-min_request)) - slop = (size_t) (MAX_ALLOC_CHUNK-min_request); - /* Try to get space, if fail reduce slop and try again */ - for (;;) { - hdr_ptr = (small_pool_ptr) jpeg_get_small(cinfo, min_request + slop); - if (hdr_ptr != NULL) - break; - slop /= 2; - if (slop < MIN_SLOP) /* give up when it gets real small */ - out_of_memory(cinfo, 2); /* jpeg_get_small failed */ - } - mem->total_space_allocated += min_request + slop; - /* Success, initialize the new pool header and add to end of list */ - hdr_ptr->hdr.next = NULL; - hdr_ptr->hdr.bytes_used = 0; - hdr_ptr->hdr.bytes_left = sizeofobject + slop; - if (prev_hdr_ptr == NULL) /* first pool in class? */ - mem->small_list[pool_id] = hdr_ptr; - else - prev_hdr_ptr->hdr.next = hdr_ptr; - } - - /* OK, allocate the object from the current pool */ - data_ptr = (char *) (hdr_ptr + 1); /* point to first data byte in pool */ - data_ptr += hdr_ptr->hdr.bytes_used; /* point to place for object */ - hdr_ptr->hdr.bytes_used += sizeofobject; - hdr_ptr->hdr.bytes_left -= sizeofobject; - - return (void *) data_ptr; -} - - -/* - * Allocation of "large" objects. - * - * The external semantics of these are the same as "small" objects, - * except that FAR pointers are used on 80x86. However the pool - * management heuristics are quite different. We assume that each - * request is large enough that it may as well be passed directly to - * jpeg_get_large; the pool management just links everything together - * so that we can free it all on demand. - * Note: the major use of "large" objects is in JSAMPARRAY and JBLOCKARRAY - * structures. The routines that create these structures (see below) - * deliberately bunch rows together to ensure a large request size. - */ - -METHODDEF(void FAR *) -alloc_large (j_common_ptr cinfo, int pool_id, size_t sizeofobject) -/* Allocate a "large" object */ -{ - my_mem_ptr mem = (my_mem_ptr) cinfo->mem; - large_pool_ptr hdr_ptr; - size_t odd_bytes; - - /* Check for unsatisfiable request (do now to ensure no overflow below) */ - if (sizeofobject > (size_t) (MAX_ALLOC_CHUNK-SIZEOF(large_pool_hdr))) - out_of_memory(cinfo, 3); /* request exceeds malloc's ability */ - - /* Round up the requested size to a multiple of SIZEOF(ALIGN_TYPE) */ - odd_bytes = sizeofobject % SIZEOF(ALIGN_TYPE); - if (odd_bytes > 0) - sizeofobject += SIZEOF(ALIGN_TYPE) - odd_bytes; - - /* Always make a new pool */ - if (pool_id < 0 || pool_id >= JPOOL_NUMPOOLS) - ERREXIT1(cinfo, JERR_BAD_POOL_ID, pool_id); /* safety check */ - - hdr_ptr = (large_pool_ptr) jpeg_get_large(cinfo, sizeofobject + - SIZEOF(large_pool_hdr)); - if (hdr_ptr == NULL) - out_of_memory(cinfo, 4); /* jpeg_get_large failed */ - mem->total_space_allocated += sizeofobject + SIZEOF(large_pool_hdr); - - /* Success, initialize the new pool header and add to list */ - hdr_ptr->hdr.next = mem->large_list[pool_id]; - /* We maintain space counts in each pool header for statistical purposes, - * even though they are not needed for allocation. - */ - hdr_ptr->hdr.bytes_used = sizeofobject; - hdr_ptr->hdr.bytes_left = 0; - mem->large_list[pool_id] = hdr_ptr; - - return (void FAR *) (hdr_ptr + 1); /* point to first data byte in pool */ -} - - -/* - * Creation of 2-D sample arrays. - * The pointers are in near heap, the samples themselves in FAR heap. - * - * To minimize allocation overhead and to allow I/O of large contiguous - * blocks, we allocate the sample rows in groups of as many rows as possible - * without exceeding MAX_ALLOC_CHUNK total bytes per allocation request. - * NB: the virtual array control routines, later in this file, know about - * this chunking of rows. The rowsperchunk value is left in the mem manager - * object so that it can be saved away if this sarray is the workspace for - * a virtual array. - */ - -METHODDEF(JSAMPARRAY) -alloc_sarray (j_common_ptr cinfo, int pool_id, - JDIMENSION samplesperrow, JDIMENSION numrows) -/* Allocate a 2-D sample array */ -{ - my_mem_ptr mem = (my_mem_ptr) cinfo->mem; - JSAMPARRAY result; - JSAMPROW workspace; - JDIMENSION rowsperchunk, currow, i; - long ltemp; - - /* Calculate max # of rows allowed in one allocation chunk */ - ltemp = (MAX_ALLOC_CHUNK-SIZEOF(large_pool_hdr)) / - ((long) samplesperrow * SIZEOF(JSAMPLE)); - if (ltemp <= 0) - ERREXIT(cinfo, JERR_WIDTH_OVERFLOW); - if (ltemp < (long) numrows) - rowsperchunk = (JDIMENSION) ltemp; - else - rowsperchunk = numrows; - mem->last_rowsperchunk = rowsperchunk; - - /* Get space for row pointers (small object) */ - result = (JSAMPARRAY) alloc_small(cinfo, pool_id, - (size_t) (numrows * SIZEOF(JSAMPROW))); - - /* Get the rows themselves (large objects) */ - currow = 0; - while (currow < numrows) { - rowsperchunk = MIN(rowsperchunk, numrows - currow); - workspace = (JSAMPROW) alloc_large(cinfo, pool_id, - (size_t) ((size_t) rowsperchunk * (size_t) samplesperrow - * SIZEOF(JSAMPLE))); - for (i = rowsperchunk; i > 0; i--) { - result[currow++] = workspace; - workspace += samplesperrow; - } - } - - return result; -} - - -/* - * Creation of 2-D coefficient-block arrays. - * This is essentially the same as the code for sample arrays, above. - */ - -METHODDEF(JBLOCKARRAY) -alloc_barray (j_common_ptr cinfo, int pool_id, - JDIMENSION blocksperrow, JDIMENSION numrows) -/* Allocate a 2-D coefficient-block array */ -{ - my_mem_ptr mem = (my_mem_ptr) cinfo->mem; - JBLOCKARRAY result; - JBLOCKROW workspace; - JDIMENSION rowsperchunk, currow, i; - long ltemp; - - /* Calculate max # of rows allowed in one allocation chunk */ - ltemp = (MAX_ALLOC_CHUNK-SIZEOF(large_pool_hdr)) / - ((long) blocksperrow * SIZEOF(JBLOCK)); - if (ltemp <= 0) - ERREXIT(cinfo, JERR_WIDTH_OVERFLOW); - if (ltemp < (long) numrows) - rowsperchunk = (JDIMENSION) ltemp; - else - rowsperchunk = numrows; - mem->last_rowsperchunk = rowsperchunk; - - /* Get space for row pointers (small object) */ - result = (JBLOCKARRAY) alloc_small(cinfo, pool_id, - (size_t) (numrows * SIZEOF(JBLOCKROW))); - - /* Get the rows themselves (large objects) */ - currow = 0; - while (currow < numrows) { - rowsperchunk = MIN(rowsperchunk, numrows - currow); - workspace = (JBLOCKROW) alloc_large(cinfo, pool_id, - (size_t) ((size_t) rowsperchunk * (size_t) blocksperrow - * SIZEOF(JBLOCK))); - for (i = rowsperchunk; i > 0; i--) { - result[currow++] = workspace; - workspace += blocksperrow; - } - } - - return result; -} - - -/* - * About virtual array management: - * - * The above "normal" array routines are only used to allocate strip buffers - * (as wide as the image, but just a few rows high). Full-image-sized buffers - * are handled as "virtual" arrays. The array is still accessed a strip at a - * time, but the memory manager must save the whole array for repeated - * accesses. The intended implementation is that there is a strip buffer in - * memory (as high as is possible given the desired memory limit), plus a - * backing file that holds the rest of the array. - * - * The request_virt_array routines are told the total size of the image and - * the maximum number of rows that will be accessed at once. The in-memory - * buffer must be at least as large as the maxaccess value. - * - * The request routines create control blocks but not the in-memory buffers. - * That is postponed until realize_virt_arrays is called. At that time the - * total amount of space needed is known (approximately, anyway), so free - * memory can be divided up fairly. - * - * The access_virt_array routines are responsible for making a specific strip - * area accessible (after reading or writing the backing file, if necessary). - * Note that the access routines are told whether the caller intends to modify - * the accessed strip; during a read-only pass this saves having to rewrite - * data to disk. The access routines are also responsible for pre-zeroing - * any newly accessed rows, if pre-zeroing was requested. - * - * In current usage, the access requests are usually for nonoverlapping - * strips; that is, successive access start_row numbers differ by exactly - * num_rows = maxaccess. This means we can get good performance with simple - * buffer dump/reload logic, by making the in-memory buffer be a multiple - * of the access height; then there will never be accesses across bufferload - * boundaries. The code will still work with overlapping access requests, - * but it doesn't handle bufferload overlaps very efficiently. - */ - - -METHODDEF(jvirt_sarray_ptr) -request_virt_sarray (j_common_ptr cinfo, int pool_id, boolean pre_zero, - JDIMENSION samplesperrow, JDIMENSION numrows, - JDIMENSION maxaccess) -/* Request a virtual 2-D sample array */ -{ - my_mem_ptr mem = (my_mem_ptr) cinfo->mem; - jvirt_sarray_ptr result; - - /* Only IMAGE-lifetime virtual arrays are currently supported */ - if (pool_id != JPOOL_IMAGE) - ERREXIT1(cinfo, JERR_BAD_POOL_ID, pool_id); /* safety check */ - - /* get control block */ - result = (jvirt_sarray_ptr) alloc_small(cinfo, pool_id, - SIZEOF(struct jvirt_sarray_control)); - - result->mem_buffer = NULL; /* marks array not yet realized */ - result->rows_in_array = numrows; - result->samplesperrow = samplesperrow; - result->maxaccess = maxaccess; - result->pre_zero = pre_zero; - result->b_s_open = FALSE; /* no associated backing-store object */ - result->next = mem->virt_sarray_list; /* add to list of virtual arrays */ - mem->virt_sarray_list = result; - - return result; -} - - -METHODDEF(jvirt_barray_ptr) -request_virt_barray (j_common_ptr cinfo, int pool_id, boolean pre_zero, - JDIMENSION blocksperrow, JDIMENSION numrows, - JDIMENSION maxaccess) -/* Request a virtual 2-D coefficient-block array */ -{ - my_mem_ptr mem = (my_mem_ptr) cinfo->mem; - jvirt_barray_ptr result; - - /* Only IMAGE-lifetime virtual arrays are currently supported */ - if (pool_id != JPOOL_IMAGE) - ERREXIT1(cinfo, JERR_BAD_POOL_ID, pool_id); /* safety check */ - - /* get control block */ - result = (jvirt_barray_ptr) alloc_small(cinfo, pool_id, - SIZEOF(struct jvirt_barray_control)); - - result->mem_buffer = NULL; /* marks array not yet realized */ - result->rows_in_array = numrows; - result->blocksperrow = blocksperrow; - result->maxaccess = maxaccess; - result->pre_zero = pre_zero; - result->b_s_open = FALSE; /* no associated backing-store object */ - result->next = mem->virt_barray_list; /* add to list of virtual arrays */ - mem->virt_barray_list = result; - - return result; -} - - -METHODDEF(void) -realize_virt_arrays (j_common_ptr cinfo) -/* Allocate the in-memory buffers for any unrealized virtual arrays */ -{ - my_mem_ptr mem = (my_mem_ptr) cinfo->mem; - long space_per_minheight, maximum_space, avail_mem; - long minheights, max_minheights; - jvirt_sarray_ptr sptr; - jvirt_barray_ptr bptr; - - /* Compute the minimum space needed (maxaccess rows in each buffer) - * and the maximum space needed (full image height in each buffer). - * These may be of use to the system-dependent jpeg_mem_available routine. - */ - space_per_minheight = 0; - maximum_space = 0; - for (sptr = mem->virt_sarray_list; sptr != NULL; sptr = sptr->next) { - if (sptr->mem_buffer == NULL) { /* if not realized yet */ - space_per_minheight += (long) sptr->maxaccess * - (long) sptr->samplesperrow * SIZEOF(JSAMPLE); - maximum_space += (long) sptr->rows_in_array * - (long) sptr->samplesperrow * SIZEOF(JSAMPLE); - } - } - for (bptr = mem->virt_barray_list; bptr != NULL; bptr = bptr->next) { - if (bptr->mem_buffer == NULL) { /* if not realized yet */ - space_per_minheight += (long) bptr->maxaccess * - (long) bptr->blocksperrow * SIZEOF(JBLOCK); - maximum_space += (long) bptr->rows_in_array * - (long) bptr->blocksperrow * SIZEOF(JBLOCK); - } - } - - if (space_per_minheight <= 0) - return; /* no unrealized arrays, no work */ - - /* Determine amount of memory to actually use; this is system-dependent. */ - avail_mem = jpeg_mem_available(cinfo, space_per_minheight, maximum_space, - mem->total_space_allocated); - - /* If the maximum space needed is available, make all the buffers full - * height; otherwise parcel it out with the same number of minheights - * in each buffer. - */ - if (avail_mem >= maximum_space) - max_minheights = 1000000000L; - else { - max_minheights = avail_mem / space_per_minheight; - /* If there doesn't seem to be enough space, try to get the minimum - * anyway. This allows a "stub" implementation of jpeg_mem_available(). - */ - if (max_minheights <= 0) - max_minheights = 1; - } - - /* Allocate the in-memory buffers and initialize backing store as needed. */ - - for (sptr = mem->virt_sarray_list; sptr != NULL; sptr = sptr->next) { - if (sptr->mem_buffer == NULL) { /* if not realized yet */ - minheights = ((long) sptr->rows_in_array - 1L) / sptr->maxaccess + 1L; - if (minheights <= max_minheights) { - /* This buffer fits in memory */ - sptr->rows_in_mem = sptr->rows_in_array; - } else { - /* It doesn't fit in memory, create backing store. */ - sptr->rows_in_mem = (JDIMENSION) (max_minheights * sptr->maxaccess); - jpeg_open_backing_store(cinfo, & sptr->b_s_info, - (long) sptr->rows_in_array * - (long) sptr->samplesperrow * - (long) SIZEOF(JSAMPLE)); - sptr->b_s_open = TRUE; - } - sptr->mem_buffer = alloc_sarray(cinfo, JPOOL_IMAGE, - sptr->samplesperrow, sptr->rows_in_mem); - sptr->rowsperchunk = mem->last_rowsperchunk; - sptr->cur_start_row = 0; - sptr->first_undef_row = 0; - sptr->dirty = FALSE; - } - } - - for (bptr = mem->virt_barray_list; bptr != NULL; bptr = bptr->next) { - if (bptr->mem_buffer == NULL) { /* if not realized yet */ - minheights = ((long) bptr->rows_in_array - 1L) / bptr->maxaccess + 1L; - if (minheights <= max_minheights) { - /* This buffer fits in memory */ - bptr->rows_in_mem = bptr->rows_in_array; - } else { - /* It doesn't fit in memory, create backing store. */ - bptr->rows_in_mem = (JDIMENSION) (max_minheights * bptr->maxaccess); - jpeg_open_backing_store(cinfo, & bptr->b_s_info, - (long) bptr->rows_in_array * - (long) bptr->blocksperrow * - (long) SIZEOF(JBLOCK)); - bptr->b_s_open = TRUE; - } - bptr->mem_buffer = alloc_barray(cinfo, JPOOL_IMAGE, - bptr->blocksperrow, bptr->rows_in_mem); - bptr->rowsperchunk = mem->last_rowsperchunk; - bptr->cur_start_row = 0; - bptr->first_undef_row = 0; - bptr->dirty = FALSE; - } - } -} - - -LOCAL(void) -do_sarray_io (j_common_ptr cinfo, jvirt_sarray_ptr ptr, boolean writing) -/* Do backing store read or write of a virtual sample array */ -{ - long bytesperrow, file_offset, byte_count, rows, thisrow, i; - - bytesperrow = (long) ptr->samplesperrow * SIZEOF(JSAMPLE); - file_offset = ptr->cur_start_row * bytesperrow; - /* Loop to read or write each allocation chunk in mem_buffer */ - for (i = 0; i < (long) ptr->rows_in_mem; i += ptr->rowsperchunk) { - /* One chunk, but check for short chunk at end of buffer */ - rows = MIN((long) ptr->rowsperchunk, (long) ptr->rows_in_mem - i); - /* Transfer no more than is currently defined */ - thisrow = (long) ptr->cur_start_row + i; - rows = MIN(rows, (long) ptr->first_undef_row - thisrow); - /* Transfer no more than fits in file */ - rows = MIN(rows, (long) ptr->rows_in_array - thisrow); - if (rows <= 0) /* this chunk might be past end of file! */ - break; - byte_count = rows * bytesperrow; - if (writing) - (*ptr->b_s_info.write_backing_store) (cinfo, & ptr->b_s_info, - (void FAR *) ptr->mem_buffer[i], - file_offset, byte_count); - else - (*ptr->b_s_info.read_backing_store) (cinfo, & ptr->b_s_info, - (void FAR *) ptr->mem_buffer[i], - file_offset, byte_count); - file_offset += byte_count; - } -} - - -LOCAL(void) -do_barray_io (j_common_ptr cinfo, jvirt_barray_ptr ptr, boolean writing) -/* Do backing store read or write of a virtual coefficient-block array */ -{ - long bytesperrow, file_offset, byte_count, rows, thisrow, i; - - bytesperrow = (long) ptr->blocksperrow * SIZEOF(JBLOCK); - file_offset = ptr->cur_start_row * bytesperrow; - /* Loop to read or write each allocation chunk in mem_buffer */ - for (i = 0; i < (long) ptr->rows_in_mem; i += ptr->rowsperchunk) { - /* One chunk, but check for short chunk at end of buffer */ - rows = MIN((long) ptr->rowsperchunk, (long) ptr->rows_in_mem - i); - /* Transfer no more than is currently defined */ - thisrow = (long) ptr->cur_start_row + i; - rows = MIN(rows, (long) ptr->first_undef_row - thisrow); - /* Transfer no more than fits in file */ - rows = MIN(rows, (long) ptr->rows_in_array - thisrow); - if (rows <= 0) /* this chunk might be past end of file! */ - break; - byte_count = rows * bytesperrow; - if (writing) - (*ptr->b_s_info.write_backing_store) (cinfo, & ptr->b_s_info, - (void FAR *) ptr->mem_buffer[i], - file_offset, byte_count); - else - (*ptr->b_s_info.read_backing_store) (cinfo, & ptr->b_s_info, - (void FAR *) ptr->mem_buffer[i], - file_offset, byte_count); - file_offset += byte_count; - } -} - - -METHODDEF(JSAMPARRAY) -access_virt_sarray (j_common_ptr cinfo, jvirt_sarray_ptr ptr, - JDIMENSION start_row, JDIMENSION num_rows, - boolean writable) -/* Access the part of a virtual sample array starting at start_row */ -/* and extending for num_rows rows. writable is true if */ -/* caller intends to modify the accessed area. */ -{ - JDIMENSION end_row = start_row + num_rows; - JDIMENSION undef_row; - - /* debugging check */ - if (end_row > ptr->rows_in_array || num_rows > ptr->maxaccess || - ptr->mem_buffer == NULL) - ERREXIT(cinfo, JERR_BAD_VIRTUAL_ACCESS); - - /* Make the desired part of the virtual array accessible */ - if (start_row < ptr->cur_start_row || - end_row > ptr->cur_start_row+ptr->rows_in_mem) { - if (! ptr->b_s_open) - ERREXIT(cinfo, JERR_VIRTUAL_BUG); - /* Flush old buffer contents if necessary */ - if (ptr->dirty) { - do_sarray_io(cinfo, ptr, TRUE); - ptr->dirty = FALSE; - } - /* Decide what part of virtual array to access. - * Algorithm: if target address > current window, assume forward scan, - * load starting at target address. If target address < current window, - * assume backward scan, load so that target area is top of window. - * Note that when switching from forward write to forward read, will have - * start_row = 0, so the limiting case applies and we load from 0 anyway. - */ - if (start_row > ptr->cur_start_row) { - ptr->cur_start_row = start_row; - } else { - /* use long arithmetic here to avoid overflow & unsigned problems */ - long ltemp; - - ltemp = (long) end_row - (long) ptr->rows_in_mem; - if (ltemp < 0) - ltemp = 0; /* don't fall off front end of file */ - ptr->cur_start_row = (JDIMENSION) ltemp; - } - /* Read in the selected part of the array. - * During the initial write pass, we will do no actual read - * because the selected part is all undefined. - */ - do_sarray_io(cinfo, ptr, FALSE); - } - /* Ensure the accessed part of the array is defined; prezero if needed. - * To improve locality of access, we only prezero the part of the array - * that the caller is about to access, not the entire in-memory array. - */ - if (ptr->first_undef_row < end_row) { - if (ptr->first_undef_row < start_row) { - if (writable) /* writer skipped over a section of array */ - ERREXIT(cinfo, JERR_BAD_VIRTUAL_ACCESS); - undef_row = start_row; /* but reader is allowed to read ahead */ - } else { - undef_row = ptr->first_undef_row; - } - if (writable) - ptr->first_undef_row = end_row; - if (ptr->pre_zero) { - size_t bytesperrow = (size_t) ptr->samplesperrow * SIZEOF(JSAMPLE); - undef_row -= ptr->cur_start_row; /* make indexes relative to buffer */ - end_row -= ptr->cur_start_row; - while (undef_row < end_row) { - FMEMZERO((void FAR *) ptr->mem_buffer[undef_row], bytesperrow); - undef_row++; - } - } else { - if (! writable) /* reader looking at undefined data */ - ERREXIT(cinfo, JERR_BAD_VIRTUAL_ACCESS); - } - } - /* Flag the buffer dirty if caller will write in it */ - if (writable) - ptr->dirty = TRUE; - /* Return address of proper part of the buffer */ - return ptr->mem_buffer + (start_row - ptr->cur_start_row); -} - - -METHODDEF(JBLOCKARRAY) -access_virt_barray (j_common_ptr cinfo, jvirt_barray_ptr ptr, - JDIMENSION start_row, JDIMENSION num_rows, - boolean writable) -/* Access the part of a virtual block array starting at start_row */ -/* and extending for num_rows rows. writable is true if */ -/* caller intends to modify the accessed area. */ -{ - JDIMENSION end_row = start_row + num_rows; - JDIMENSION undef_row; - - /* debugging check */ - if (end_row > ptr->rows_in_array || num_rows > ptr->maxaccess || - ptr->mem_buffer == NULL) - ERREXIT(cinfo, JERR_BAD_VIRTUAL_ACCESS); - - /* Make the desired part of the virtual array accessible */ - if (start_row < ptr->cur_start_row || - end_row > ptr->cur_start_row+ptr->rows_in_mem) { - if (! ptr->b_s_open) - ERREXIT(cinfo, JERR_VIRTUAL_BUG); - /* Flush old buffer contents if necessary */ - if (ptr->dirty) { - do_barray_io(cinfo, ptr, TRUE); - ptr->dirty = FALSE; - } - /* Decide what part of virtual array to access. - * Algorithm: if target address > current window, assume forward scan, - * load starting at target address. If target address < current window, - * assume backward scan, load so that target area is top of window. - * Note that when switching from forward write to forward read, will have - * start_row = 0, so the limiting case applies and we load from 0 anyway. - */ - if (start_row > ptr->cur_start_row) { - ptr->cur_start_row = start_row; - } else { - /* use long arithmetic here to avoid overflow & unsigned problems */ - long ltemp; - - ltemp = (long) end_row - (long) ptr->rows_in_mem; - if (ltemp < 0) - ltemp = 0; /* don't fall off front end of file */ - ptr->cur_start_row = (JDIMENSION) ltemp; - } - /* Read in the selected part of the array. - * During the initial write pass, we will do no actual read - * because the selected part is all undefined. - */ - do_barray_io(cinfo, ptr, FALSE); - } - /* Ensure the accessed part of the array is defined; prezero if needed. - * To improve locality of access, we only prezero the part of the array - * that the caller is about to access, not the entire in-memory array. - */ - if (ptr->first_undef_row < end_row) { - if (ptr->first_undef_row < start_row) { - if (writable) /* writer skipped over a section of array */ - ERREXIT(cinfo, JERR_BAD_VIRTUAL_ACCESS); - undef_row = start_row; /* but reader is allowed to read ahead */ - } else { - undef_row = ptr->first_undef_row; - } - if (writable) - ptr->first_undef_row = end_row; - if (ptr->pre_zero) { - size_t bytesperrow = (size_t) ptr->blocksperrow * SIZEOF(JBLOCK); - undef_row -= ptr->cur_start_row; /* make indexes relative to buffer */ - end_row -= ptr->cur_start_row; - while (undef_row < end_row) { - FMEMZERO((void FAR *) ptr->mem_buffer[undef_row], bytesperrow); - undef_row++; - } - } else { - if (! writable) /* reader looking at undefined data */ - ERREXIT(cinfo, JERR_BAD_VIRTUAL_ACCESS); - } - } - /* Flag the buffer dirty if caller will write in it */ - if (writable) - ptr->dirty = TRUE; - /* Return address of proper part of the buffer */ - return ptr->mem_buffer + (start_row - ptr->cur_start_row); -} - - -/* - * Release all objects belonging to a specified pool. - */ - -METHODDEF(void) -free_pool (j_common_ptr cinfo, int pool_id) -{ - my_mem_ptr mem = (my_mem_ptr) cinfo->mem; - small_pool_ptr shdr_ptr; - large_pool_ptr lhdr_ptr; - size_t space_freed; - - if (pool_id < 0 || pool_id >= JPOOL_NUMPOOLS) - ERREXIT1(cinfo, JERR_BAD_POOL_ID, pool_id); /* safety check */ - -#ifdef MEM_STATS - if (cinfo->err->trace_level > 1) - print_mem_stats(cinfo, pool_id); /* print pool's memory usage statistics */ -#endif - - /* If freeing IMAGE pool, close any virtual arrays first */ - if (pool_id == JPOOL_IMAGE) { - jvirt_sarray_ptr sptr; - jvirt_barray_ptr bptr; - - for (sptr = mem->virt_sarray_list; sptr != NULL; sptr = sptr->next) { - if (sptr->b_s_open) { /* there may be no backing store */ - sptr->b_s_open = FALSE; /* prevent recursive close if error */ - (*sptr->b_s_info.close_backing_store) (cinfo, & sptr->b_s_info); - } - } - mem->virt_sarray_list = NULL; - for (bptr = mem->virt_barray_list; bptr != NULL; bptr = bptr->next) { - if (bptr->b_s_open) { /* there may be no backing store */ - bptr->b_s_open = FALSE; /* prevent recursive close if error */ - (*bptr->b_s_info.close_backing_store) (cinfo, & bptr->b_s_info); - } - } - mem->virt_barray_list = NULL; - } - - /* Release large objects */ - lhdr_ptr = mem->large_list[pool_id]; - mem->large_list[pool_id] = NULL; - - while (lhdr_ptr != NULL) { - large_pool_ptr next_lhdr_ptr = lhdr_ptr->hdr.next; - space_freed = lhdr_ptr->hdr.bytes_used + - lhdr_ptr->hdr.bytes_left + - SIZEOF(large_pool_hdr); - jpeg_free_large(cinfo, (void FAR *) lhdr_ptr, space_freed); - mem->total_space_allocated -= space_freed; - lhdr_ptr = next_lhdr_ptr; - } - - /* Release small objects */ - shdr_ptr = mem->small_list[pool_id]; - mem->small_list[pool_id] = NULL; - - while (shdr_ptr != NULL) { - small_pool_ptr next_shdr_ptr = shdr_ptr->hdr.next; - space_freed = shdr_ptr->hdr.bytes_used + - shdr_ptr->hdr.bytes_left + - SIZEOF(small_pool_hdr); - jpeg_free_small(cinfo, (void *) shdr_ptr, space_freed); - mem->total_space_allocated -= space_freed; - shdr_ptr = next_shdr_ptr; - } -} - - -/* - * Close up shop entirely. - * Note that this cannot be called unless cinfo->mem is non-NULL. - */ - -METHODDEF(void) -self_destruct (j_common_ptr cinfo) -{ - int pool; - - /* Close all backing store, release all memory. - * Releasing pools in reverse order might help avoid fragmentation - * with some (brain-damaged) malloc libraries. - */ - for (pool = JPOOL_NUMPOOLS-1; pool >= JPOOL_PERMANENT; pool--) { - free_pool(cinfo, pool); - } - - /* Release the memory manager control block too. */ - jpeg_free_small(cinfo, (void *) cinfo->mem, SIZEOF(my_memory_mgr)); - cinfo->mem = NULL; /* ensures I will be called only once */ - - jpeg_mem_term(cinfo); /* system-dependent cleanup */ -} - - -/* - * Memory manager initialization. - * When this is called, only the error manager pointer is valid in cinfo! - */ - -GLOBAL(void) -jinit_memory_mgr (j_common_ptr cinfo) -{ - my_mem_ptr mem; - long max_to_use; - int pool; - size_t test_mac; - - cinfo->mem = NULL; /* for safety if init fails */ - - /* Check for configuration errors. - * SIZEOF(ALIGN_TYPE) should be a power of 2; otherwise, it probably - * doesn't reflect any real hardware alignment requirement. - * The test is a little tricky: for X>0, X and X-1 have no one-bits - * in common if and only if X is a power of 2, ie has only one one-bit. - * Some compilers may give an "unreachable code" warning here; ignore it. - */ - if ((SIZEOF(ALIGN_TYPE) & (SIZEOF(ALIGN_TYPE)-1)) != 0) - ERREXIT(cinfo, JERR_BAD_ALIGN_TYPE); - /* MAX_ALLOC_CHUNK must be representable as type size_t, and must be - * a multiple of SIZEOF(ALIGN_TYPE). - * Again, an "unreachable code" warning may be ignored here. - * But a "constant too large" warning means you need to fix MAX_ALLOC_CHUNK. - */ - test_mac = (size_t) MAX_ALLOC_CHUNK; - if ((long) test_mac != MAX_ALLOC_CHUNK || - (MAX_ALLOC_CHUNK % SIZEOF(ALIGN_TYPE)) != 0) - ERREXIT(cinfo, JERR_BAD_ALLOC_CHUNK); - - max_to_use = jpeg_mem_init(cinfo); /* system-dependent initialization */ - - /* Attempt to allocate memory manager's control block */ - mem = (my_mem_ptr) jpeg_get_small(cinfo, SIZEOF(my_memory_mgr)); - - if (mem == NULL) { - jpeg_mem_term(cinfo); /* system-dependent cleanup */ - ERREXIT1(cinfo, JERR_OUT_OF_MEMORY, 0); - } - - /* OK, fill in the method pointers */ - mem->pub.alloc_small = alloc_small; - mem->pub.alloc_large = alloc_large; - mem->pub.alloc_sarray = alloc_sarray; - mem->pub.alloc_barray = alloc_barray; - mem->pub.request_virt_sarray = request_virt_sarray; - mem->pub.request_virt_barray = request_virt_barray; - mem->pub.realize_virt_arrays = realize_virt_arrays; - mem->pub.access_virt_sarray = access_virt_sarray; - mem->pub.access_virt_barray = access_virt_barray; - mem->pub.free_pool = free_pool; - mem->pub.self_destruct = self_destruct; - - /* Make MAX_ALLOC_CHUNK accessible to other modules */ - mem->pub.max_alloc_chunk = MAX_ALLOC_CHUNK; - - /* Initialize working state */ - mem->pub.max_memory_to_use = max_to_use; - - for (pool = JPOOL_NUMPOOLS-1; pool >= JPOOL_PERMANENT; pool--) { - mem->small_list[pool] = NULL; - mem->large_list[pool] = NULL; - } - mem->virt_sarray_list = NULL; - mem->virt_barray_list = NULL; - - mem->total_space_allocated = SIZEOF(my_memory_mgr); - - /* Declare ourselves open for business */ - cinfo->mem = & mem->pub; - - /* Check for an environment variable JPEGMEM; if found, override the - * default max_memory setting from jpeg_mem_init. Note that the - * surrounding application may again override this value. - * If your system doesn't support getenv(), define NO_GETENV to disable - * this feature. - */ -#ifndef NO_GETENV - { char * memenv; - - if ((memenv = getenv("JPEGMEM")) != NULL) { - char ch = 'x'; - - if (sscanf(memenv, "%ld%c", &max_to_use, &ch) > 0) { - if (ch == 'm' || ch == 'M') - max_to_use *= 1000L; - mem->pub.max_memory_to_use = max_to_use * 1000L; - } - } - } -#endif - -} diff --git a/jpg/jmemname.c b/jpg/jmemname.c deleted file mode 100644 index ed96dee..0000000 --- a/jpg/jmemname.c +++ /dev/null @@ -1,276 +0,0 @@ -/* - * jmemname.c - * - * Copyright (C) 1992-1997, Thomas G. Lane. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file provides a generic implementation of the system-dependent - * portion of the JPEG memory manager. This implementation assumes that - * you must explicitly construct a name for each temp file. - * Also, the problem of determining the amount of memory available - * is shoved onto the user. - */ - -#define JPEG_INTERNALS -#include "jinclude.h" -#include "jpeglib.h" -#include "jmemsys.h" /* import the system-dependent declarations */ - -#ifndef HAVE_STDLIB_H /* should declare malloc(),free() */ -extern void * malloc JPP((size_t size)); -extern void free JPP((void *ptr)); -#endif - -#ifndef SEEK_SET /* pre-ANSI systems may not define this; */ -#define SEEK_SET 0 /* if not, assume 0 is correct */ -#endif - -#ifdef DONT_USE_B_MODE /* define mode parameters for fopen() */ -#define READ_BINARY "r" -#define RW_BINARY "w+" -#else -#ifdef VMS /* VMS is very nonstandard */ -#define READ_BINARY "rb", "ctx=stm" -#define RW_BINARY "w+b", "ctx=stm" -#else /* standard ANSI-compliant case */ -#define READ_BINARY "rb" -#define RW_BINARY "w+b" -#endif -#endif - - -/* - * Selection of a file name for a temporary file. - * This is system-dependent! - * - * The code as given is suitable for most Unix systems, and it is easily - * modified for most non-Unix systems. Some notes: - * 1. The temp file is created in the directory named by TEMP_DIRECTORY. - * The default value is /usr/tmp, which is the conventional place for - * creating large temp files on Unix. On other systems you'll probably - * want to change the file location. You can do this by editing the - * #define, or (preferred) by defining TEMP_DIRECTORY in jconfig.h. - * - * 2. If you need to change the file name as well as its location, - * you can override the TEMP_FILE_NAME macro. (Note that this is - * actually a printf format string; it must contain %s and %d.) - * Few people should need to do this. - * - * 3. mktemp() is used to ensure that multiple processes running - * simultaneously won't select the same file names. If your system - * doesn't have mktemp(), define NO_MKTEMP to do it the hard way. - * (If you don't have , also define NO_ERRNO_H.) - * - * 4. You probably want to define NEED_SIGNAL_CATCHER so that cjpeg.c/djpeg.c - * will cause the temp files to be removed if you stop the program early. - */ - -#ifndef TEMP_DIRECTORY /* can override from jconfig.h or Makefile */ -#define TEMP_DIRECTORY "/usr/tmp/" /* recommended setting for Unix */ -#endif - -static int next_file_num; /* to distinguish among several temp files */ - -#ifdef NO_MKTEMP - -#ifndef TEMP_FILE_NAME /* can override from jconfig.h or Makefile */ -#define TEMP_FILE_NAME "%sJPG%03d.TMP" -#endif - -#ifndef NO_ERRNO_H -#include /* to define ENOENT */ -#endif - -/* ANSI C specifies that errno is a macro, but on older systems it's more - * likely to be a plain int variable. And not all versions of errno.h - * bother to declare it, so we have to in order to be most portable. Thus: - */ -#ifndef errno -extern int errno; -#endif - - -LOCAL(void) -select_file_name (char * fname) -{ - FILE * tfile; - - /* Keep generating file names till we find one that's not in use */ - for (;;) { - next_file_num++; /* advance counter */ - sprintf(fname, TEMP_FILE_NAME, TEMP_DIRECTORY, next_file_num); - if ((tfile = fopen(fname, READ_BINARY)) == NULL) { - /* fopen could have failed for a reason other than the file not - * being there; for example, file there but unreadable. - * If isn't available, then we cannot test the cause. - */ -#ifdef ENOENT - if (errno != ENOENT) - continue; -#endif - break; - } - fclose(tfile); /* oops, it's there; close tfile & try again */ - } -} - -#else /* ! NO_MKTEMP */ - -/* Note that mktemp() requires the initial filename to end in six X's */ -#ifndef TEMP_FILE_NAME /* can override from jconfig.h or Makefile */ -#define TEMP_FILE_NAME "%sJPG%dXXXXXX" -#endif - -LOCAL(void) -select_file_name (char * fname) -{ - next_file_num++; /* advance counter */ - sprintf(fname, TEMP_FILE_NAME, TEMP_DIRECTORY, next_file_num); - mktemp(fname); /* make sure file name is unique */ - /* mktemp replaces the trailing XXXXXX with a unique string of characters */ -} - -#endif /* NO_MKTEMP */ - - -/* - * Memory allocation and freeing are controlled by the regular library - * routines malloc() and free(). - */ - -GLOBAL(void *) -jpeg_get_small (j_common_ptr cinfo, size_t sizeofobject) -{ - return (void *) malloc(sizeofobject); -} - -GLOBAL(void) -jpeg_free_small (j_common_ptr cinfo, void * object, size_t sizeofobject) -{ - free(object); -} - - -/* - * "Large" objects are treated the same as "small" ones. - * NB: although we include FAR keywords in the routine declarations, - * this file won't actually work in 80x86 small/medium model; at least, - * you probably won't be able to process useful-size images in only 64KB. - */ - -GLOBAL(void FAR *) -jpeg_get_large (j_common_ptr cinfo, size_t sizeofobject) -{ - return (void FAR *) malloc(sizeofobject); -} - -GLOBAL(void) -jpeg_free_large (j_common_ptr cinfo, void FAR * object, size_t sizeofobject) -{ - free(object); -} - - -/* - * This routine computes the total memory space available for allocation. - * It's impossible to do this in a portable way; our current solution is - * to make the user tell us (with a default value set at compile time). - * If you can actually get the available space, it's a good idea to subtract - * a slop factor of 5% or so. - */ - -#ifndef DEFAULT_MAX_MEM /* so can override from makefile */ -#define DEFAULT_MAX_MEM 1000000L /* default: one megabyte */ -#endif - -GLOBAL(long) -jpeg_mem_available (j_common_ptr cinfo, long min_bytes_needed, - long max_bytes_needed, long already_allocated) -{ - return cinfo->mem->max_memory_to_use - already_allocated; -} - - -/* - * Backing store (temporary file) management. - * Backing store objects are only used when the value returned by - * jpeg_mem_available is less than the total space needed. You can dispense - * with these routines if you have plenty of virtual memory; see jmemnobs.c. - */ - - -METHODDEF(void) -read_backing_store (j_common_ptr cinfo, backing_store_ptr info, - void FAR * buffer_address, - long file_offset, long byte_count) -{ - if (fseek(info->temp_file, file_offset, SEEK_SET)) - ERREXIT(cinfo, JERR_TFILE_SEEK); - if (JFREAD(info->temp_file, buffer_address, byte_count) - != (size_t) byte_count) - ERREXIT(cinfo, JERR_TFILE_READ); -} - - -METHODDEF(void) -write_backing_store (j_common_ptr cinfo, backing_store_ptr info, - void FAR * buffer_address, - long file_offset, long byte_count) -{ - if (fseek(info->temp_file, file_offset, SEEK_SET)) - ERREXIT(cinfo, JERR_TFILE_SEEK); - if (JFWRITE(info->temp_file, buffer_address, byte_count) - != (size_t) byte_count) - ERREXIT(cinfo, JERR_TFILE_WRITE); -} - - -METHODDEF(void) -close_backing_store (j_common_ptr cinfo, backing_store_ptr info) -{ - fclose(info->temp_file); /* close the file */ - unlink(info->temp_name); /* delete the file */ -/* If your system doesn't have unlink(), use remove() instead. - * remove() is the ANSI-standard name for this function, but if - * your system was ANSI you'd be using jmemansi.c, right? - */ - TRACEMSS(cinfo, 1, JTRC_TFILE_CLOSE, info->temp_name); -} - - -/* - * Initial opening of a backing-store object. - */ - -GLOBAL(void) -jpeg_open_backing_store (j_common_ptr cinfo, backing_store_ptr info, - long total_bytes_needed) -{ - select_file_name(info->temp_name); - if ((info->temp_file = fopen(info->temp_name, RW_BINARY)) == NULL) - ERREXITS(cinfo, JERR_TFILE_CREATE, info->temp_name); - info->read_backing_store = read_backing_store; - info->write_backing_store = write_backing_store; - info->close_backing_store = close_backing_store; - TRACEMSS(cinfo, 1, JTRC_TFILE_OPEN, info->temp_name); -} - - -/* - * These routines take care of any system-dependent initialization and - * cleanup required. - */ - -GLOBAL(long) -jpeg_mem_init (j_common_ptr cinfo) -{ - next_file_num = 0; /* initialize temp file name generator */ - return DEFAULT_MAX_MEM; /* default for max_memory_to_use */ -} - -GLOBAL(void) -jpeg_mem_term (j_common_ptr cinfo) -{ - /* no work */ -} diff --git a/jpg/jmemnobs.c b/jpg/jmemnobs.c deleted file mode 100644 index eb8c337..0000000 --- a/jpg/jmemnobs.c +++ /dev/null @@ -1,109 +0,0 @@ -/* - * jmemnobs.c - * - * Copyright (C) 1992-1996, Thomas G. Lane. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file provides a really simple implementation of the system- - * dependent portion of the JPEG memory manager. This implementation - * assumes that no backing-store files are needed: all required space - * can be obtained from malloc(). - * This is very portable in the sense that it'll compile on almost anything, - * but you'd better have lots of main memory (or virtual memory) if you want - * to process big images. - * Note that the max_memory_to_use option is ignored by this implementation. - */ - -#define JPEG_INTERNALS -#include "jinclude.h" -#include "jpeglib.h" -#include "jmemsys.h" /* import the system-dependent declarations */ - -#ifndef HAVE_STDLIB_H /* should declare malloc(),free() */ -extern void * malloc JPP((size_t size)); -extern void free JPP((void *ptr)); -#endif - - -/* - * Memory allocation and freeing are controlled by the regular library - * routines malloc() and free(). - */ - -GLOBAL(void *) -jpeg_get_small (j_common_ptr cinfo, size_t sizeofobject) -{ - return (void *) malloc(sizeofobject); -} - -GLOBAL(void) -jpeg_free_small (j_common_ptr cinfo, void * object, size_t sizeofobject) -{ - free(object); -} - - -/* - * "Large" objects are treated the same as "small" ones. - * NB: although we include FAR keywords in the routine declarations, - * this file won't actually work in 80x86 small/medium model; at least, - * you probably won't be able to process useful-size images in only 64KB. - */ - -GLOBAL(void FAR *) -jpeg_get_large (j_common_ptr cinfo, size_t sizeofobject) -{ - return (void FAR *) malloc(sizeofobject); -} - -GLOBAL(void) -jpeg_free_large (j_common_ptr cinfo, void FAR * object, size_t sizeofobject) -{ - free(object); -} - - -/* - * This routine computes the total memory space available for allocation. - * Here we always say, "we got all you want bud!" - */ - -GLOBAL(long) -jpeg_mem_available (j_common_ptr cinfo, long min_bytes_needed, - long max_bytes_needed, long already_allocated) -{ - return max_bytes_needed; -} - - -/* - * Backing store (temporary file) management. - * Since jpeg_mem_available always promised the moon, - * this should never be called and we can just error out. - */ - -GLOBAL(void) -jpeg_open_backing_store (j_common_ptr cinfo, backing_store_ptr info, - long total_bytes_needed) -{ - ERREXIT(cinfo, JERR_NO_BACKING_STORE); -} - - -/* - * These routines take care of any system-dependent initialization and - * cleanup required. Here, there isn't any. - */ - -GLOBAL(long) -jpeg_mem_init (j_common_ptr cinfo) -{ - return 0; /* just set max_memory_to_use to 0 */ -} - -GLOBAL(void) -jpeg_mem_term (j_common_ptr cinfo) -{ - /* no work */ -} diff --git a/jpg/jmemsys.h b/jpg/jmemsys.h deleted file mode 100644 index 6c3c6d3..0000000 --- a/jpg/jmemsys.h +++ /dev/null @@ -1,198 +0,0 @@ -/* - * jmemsys.h - * - * Copyright (C) 1992-1997, Thomas G. Lane. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This include file defines the interface between the system-independent - * and system-dependent portions of the JPEG memory manager. No other - * modules need include it. (The system-independent portion is jmemmgr.c; - * there are several different versions of the system-dependent portion.) - * - * This file works as-is for the system-dependent memory managers supplied - * in the IJG distribution. You may need to modify it if you write a - * custom memory manager. If system-dependent changes are needed in - * this file, the best method is to #ifdef them based on a configuration - * symbol supplied in jconfig.h, as we have done with USE_MSDOS_MEMMGR - * and USE_MAC_MEMMGR. - */ - - -/* Short forms of external names for systems with brain-damaged linkers. */ - -#ifdef NEED_SHORT_EXTERNAL_NAMES -#define jpeg_get_small jGetSmall -#define jpeg_free_small jFreeSmall -#define jpeg_get_large jGetLarge -#define jpeg_free_large jFreeLarge -#define jpeg_mem_available jMemAvail -#define jpeg_open_backing_store jOpenBackStore -#define jpeg_mem_init jMemInit -#define jpeg_mem_term jMemTerm -#endif /* NEED_SHORT_EXTERNAL_NAMES */ - - -/* - * These two functions are used to allocate and release small chunks of - * memory. (Typically the total amount requested through jpeg_get_small is - * no more than 20K or so; this will be requested in chunks of a few K each.) - * Behavior should be the same as for the standard library functions malloc - * and free; in particular, jpeg_get_small must return NULL on failure. - * On most systems, these ARE malloc and free. jpeg_free_small is passed the - * size of the object being freed, just in case it's needed. - * On an 80x86 machine using small-data memory model, these manage near heap. - */ - -EXTERN(void *) jpeg_get_small JPP((j_common_ptr cinfo, size_t sizeofobject)); -EXTERN(void) jpeg_free_small JPP((j_common_ptr cinfo, void * object, - size_t sizeofobject)); - -/* - * These two functions are used to allocate and release large chunks of - * memory (up to the total free space designated by jpeg_mem_available). - * The interface is the same as above, except that on an 80x86 machine, - * far pointers are used. On most other machines these are identical to - * the jpeg_get/free_small routines; but we keep them separate anyway, - * in case a different allocation strategy is desirable for large chunks. - */ - -EXTERN(void FAR *) jpeg_get_large JPP((j_common_ptr cinfo, - size_t sizeofobject)); -EXTERN(void) jpeg_free_large JPP((j_common_ptr cinfo, void FAR * object, - size_t sizeofobject)); - -/* - * The macro MAX_ALLOC_CHUNK designates the maximum number of bytes that may - * be requested in a single call to jpeg_get_large (and jpeg_get_small for that - * matter, but that case should never come into play). This macro is needed - * to model the 64Kb-segment-size limit of far addressing on 80x86 machines. - * On those machines, we expect that jconfig.h will provide a proper value. - * On machines with 32-bit flat address spaces, any large constant may be used. - * - * NB: jmemmgr.c expects that MAX_ALLOC_CHUNK will be representable as type - * size_t and will be a multiple of sizeof(align_type). - */ - -#ifndef MAX_ALLOC_CHUNK /* may be overridden in jconfig.h */ -#define MAX_ALLOC_CHUNK 1000000000L -#endif - -/* - * This routine computes the total space still available for allocation by - * jpeg_get_large. If more space than this is needed, backing store will be - * used. NOTE: any memory already allocated must not be counted. - * - * There is a minimum space requirement, corresponding to the minimum - * feasible buffer sizes; jmemmgr.c will request that much space even if - * jpeg_mem_available returns zero. The maximum space needed, enough to hold - * all working storage in memory, is also passed in case it is useful. - * Finally, the total space already allocated is passed. If no better - * method is available, cinfo->mem->max_memory_to_use - already_allocated - * is often a suitable calculation. - * - * It is OK for jpeg_mem_available to underestimate the space available - * (that'll just lead to more backing-store access than is really necessary). - * However, an overestimate will lead to failure. Hence it's wise to subtract - * a slop factor from the true available space. 5% should be enough. - * - * On machines with lots of virtual memory, any large constant may be returned. - * Conversely, zero may be returned to always use the minimum amount of memory. - */ - -EXTERN(long) jpeg_mem_available JPP((j_common_ptr cinfo, - long min_bytes_needed, - long max_bytes_needed, - long already_allocated)); - - -/* - * This structure holds whatever state is needed to access a single - * backing-store object. The read/write/close method pointers are called - * by jmemmgr.c to manipulate the backing-store object; all other fields - * are private to the system-dependent backing store routines. - */ - -#define TEMP_NAME_LENGTH 64 /* max length of a temporary file's name */ - - -#ifdef USE_MSDOS_MEMMGR /* DOS-specific junk */ - -typedef unsigned short XMSH; /* type of extended-memory handles */ -typedef unsigned short EMSH; /* type of expanded-memory handles */ - -typedef union { - short file_handle; /* DOS file handle if it's a temp file */ - XMSH xms_handle; /* handle if it's a chunk of XMS */ - EMSH ems_handle; /* handle if it's a chunk of EMS */ -} handle_union; - -#endif /* USE_MSDOS_MEMMGR */ - -#ifdef USE_MAC_MEMMGR /* Mac-specific junk */ -#include -#endif /* USE_MAC_MEMMGR */ - - -typedef struct backing_store_struct * backing_store_ptr; - -typedef struct backing_store_struct { - /* Methods for reading/writing/closing this backing-store object */ - JMETHOD(void, read_backing_store, (j_common_ptr cinfo, - backing_store_ptr info, - void FAR * buffer_address, - long file_offset, long byte_count)); - JMETHOD(void, write_backing_store, (j_common_ptr cinfo, - backing_store_ptr info, - void FAR * buffer_address, - long file_offset, long byte_count)); - JMETHOD(void, close_backing_store, (j_common_ptr cinfo, - backing_store_ptr info)); - - /* Private fields for system-dependent backing-store management */ -#ifdef USE_MSDOS_MEMMGR - /* For the MS-DOS manager (jmemdos.c), we need: */ - handle_union handle; /* reference to backing-store storage object */ - char temp_name[TEMP_NAME_LENGTH]; /* name if it's a file */ -#else -#ifdef USE_MAC_MEMMGR - /* For the Mac manager (jmemmac.c), we need: */ - short temp_file; /* file reference number to temp file */ - FSSpec tempSpec; /* the FSSpec for the temp file */ - char temp_name[TEMP_NAME_LENGTH]; /* name if it's a file */ -#else - /* For a typical implementation with temp files, we need: */ - FILE * temp_file; /* stdio reference to temp file */ - char temp_name[TEMP_NAME_LENGTH]; /* name of temp file */ -#endif -#endif -} backing_store_info; - - -/* - * Initial opening of a backing-store object. This must fill in the - * read/write/close pointers in the object. The read/write routines - * may take an error exit if the specified maximum file size is exceeded. - * (If jpeg_mem_available always returns a large value, this routine can - * just take an error exit.) - */ - -EXTERN(void) jpeg_open_backing_store JPP((j_common_ptr cinfo, - backing_store_ptr info, - long total_bytes_needed)); - - -/* - * These routines take care of any system-dependent initialization and - * cleanup required. jpeg_mem_init will be called before anything is - * allocated (and, therefore, nothing in cinfo is of use except the error - * manager pointer). It should return a suitable default value for - * max_memory_to_use; this may subsequently be overridden by the surrounding - * application. (Note that max_memory_to_use is only important if - * jpeg_mem_available chooses to consult it ... no one else will.) - * jpeg_mem_term may assume that all requested memory has been freed and that - * all opened backing-store objects have been closed. - */ - -EXTERN(long) jpeg_mem_init JPP((j_common_ptr cinfo)); -EXTERN(void) jpeg_mem_term JPP((j_common_ptr cinfo)); diff --git a/jpg/jmorecfg.h b/jpg/jmorecfg.h deleted file mode 100644 index 6c085c3..0000000 --- a/jpg/jmorecfg.h +++ /dev/null @@ -1,369 +0,0 @@ -/* - * jmorecfg.h - * - * Copyright (C) 1991-1997, Thomas G. Lane. - * Modified 1997-2011 by Guido Vollbeding. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file contains additional configuration options that customize the - * JPEG software for special applications or support machine-dependent - * optimizations. Most users will not need to touch this file. - */ - - -/* - * Define BITS_IN_JSAMPLE as either - * 8 for 8-bit sample values (the usual setting) - * 12 for 12-bit sample values - * Only 8 and 12 are legal data precisions for lossy JPEG according to the - * JPEG standard, and the IJG code does not support anything else! - * We do not support run-time selection of data precision, sorry. - */ - -#define BITS_IN_JSAMPLE 8 /* use 8 or 12 */ - - -/* - * Maximum number of components (color channels) allowed in JPEG image. - * To meet the letter of the JPEG spec, set this to 255. However, darn - * few applications need more than 4 channels (maybe 5 for CMYK + alpha - * mask). We recommend 10 as a reasonable compromise; use 4 if you are - * really short on memory. (Each allowed component costs a hundred or so - * bytes of storage, whether actually used in an image or not.) - */ - -#define MAX_COMPONENTS 10 /* maximum number of image components */ - - -/* - * Basic data types. - * You may need to change these if you have a machine with unusual data - * type sizes; for example, "char" not 8 bits, "short" not 16 bits, - * or "long" not 32 bits. We don't care whether "int" is 16 or 32 bits, - * but it had better be at least 16. - */ - -/* Representation of a single sample (pixel element value). - * We frequently allocate large arrays of these, so it's important to keep - * them small. But if you have memory to burn and access to char or short - * arrays is very slow on your hardware, you might want to change these. - */ - -#if BITS_IN_JSAMPLE == 8 -/* JSAMPLE should be the smallest type that will hold the values 0..255. - * You can use a signed char by having GETJSAMPLE mask it with 0xFF. - */ - -#ifdef HAVE_UNSIGNED_CHAR - -typedef unsigned char JSAMPLE; -#define GETJSAMPLE(value) ((int) (value)) - -#else /* not HAVE_UNSIGNED_CHAR */ - -typedef char JSAMPLE; -#ifdef CHAR_IS_UNSIGNED -#define GETJSAMPLE(value) ((int) (value)) -#else -#define GETJSAMPLE(value) ((int) (value) & 0xFF) -#endif /* CHAR_IS_UNSIGNED */ - -#endif /* HAVE_UNSIGNED_CHAR */ - -#define MAXJSAMPLE 255 -#define CENTERJSAMPLE 128 - -#endif /* BITS_IN_JSAMPLE == 8 */ - - -#if BITS_IN_JSAMPLE == 12 -/* JSAMPLE should be the smallest type that will hold the values 0..4095. - * On nearly all machines "short" will do nicely. - */ - -typedef short JSAMPLE; -#define GETJSAMPLE(value) ((int) (value)) - -#define MAXJSAMPLE 4095 -#define CENTERJSAMPLE 2048 - -#endif /* BITS_IN_JSAMPLE == 12 */ - - -/* Representation of a DCT frequency coefficient. - * This should be a signed value of at least 16 bits; "short" is usually OK. - * Again, we allocate large arrays of these, but you can change to int - * if you have memory to burn and "short" is really slow. - */ - -typedef short JCOEF; - - -/* Compressed datastreams are represented as arrays of JOCTET. - * These must be EXACTLY 8 bits wide, at least once they are written to - * external storage. Note that when using the stdio data source/destination - * managers, this is also the data type passed to fread/fwrite. - */ - -#ifdef HAVE_UNSIGNED_CHAR - -typedef unsigned char JOCTET; -#define GETJOCTET(value) (value) - -#else /* not HAVE_UNSIGNED_CHAR */ - -typedef char JOCTET; -#ifdef CHAR_IS_UNSIGNED -#define GETJOCTET(value) (value) -#else -#define GETJOCTET(value) ((value) & 0xFF) -#endif /* CHAR_IS_UNSIGNED */ - -#endif /* HAVE_UNSIGNED_CHAR */ - - -/* These typedefs are used for various table entries and so forth. - * They must be at least as wide as specified; but making them too big - * won't cost a huge amount of memory, so we don't provide special - * extraction code like we did for JSAMPLE. (In other words, these - * typedefs live at a different point on the speed/space tradeoff curve.) - */ - -/* UINT8 must hold at least the values 0..255. */ - -#ifdef HAVE_UNSIGNED_CHAR -typedef unsigned char UINT8; -#else /* not HAVE_UNSIGNED_CHAR */ -#ifdef CHAR_IS_UNSIGNED -typedef char UINT8; -#else /* not CHAR_IS_UNSIGNED */ -typedef short UINT8; -#endif /* CHAR_IS_UNSIGNED */ -#endif /* HAVE_UNSIGNED_CHAR */ - -/* UINT16 must hold at least the values 0..65535. */ - -#ifdef HAVE_UNSIGNED_SHORT -typedef unsigned short UINT16; -#else /* not HAVE_UNSIGNED_SHORT */ -typedef unsigned int UINT16; -#endif /* HAVE_UNSIGNED_SHORT */ - -/* INT16 must hold at least the values -32768..32767. */ - -#ifndef XMD_H /* X11/xmd.h correctly defines INT16 */ -typedef short INT16; -#endif - -/* INT32 must hold at least signed 32-bit values. */ - -#ifndef XMD_H /* X11/xmd.h correctly defines INT32 */ -#ifndef _BASETSD_H_ /* Microsoft defines it in basetsd.h */ -#ifndef _BASETSD_H /* MinGW is slightly different */ -#ifndef QGLOBAL_H /* Qt defines it in qglobal.h */ -typedef long INT32; -#endif -#endif -#endif -#endif - -/* Datatype used for image dimensions. The JPEG standard only supports - * images up to 64K*64K due to 16-bit fields in SOF markers. Therefore - * "unsigned int" is sufficient on all machines. However, if you need to - * handle larger images and you don't mind deviating from the spec, you - * can change this datatype. - */ - -typedef unsigned int JDIMENSION; - -#define JPEG_MAX_DIMENSION 65500L /* a tad under 64K to prevent overflows */ - - -/* These macros are used in all function definitions and extern declarations. - * You could modify them if you need to change function linkage conventions; - * in particular, you'll need to do that to make the library a Windows DLL. - * Another application is to make all functions global for use with debuggers - * or code profilers that require it. - */ - -/* a function called through method pointers: */ -#define METHODDEF(type) static type -/* a function used only in its module: */ -#define LOCAL(type) static type -/* a function referenced thru EXTERNs: */ -#define GLOBAL(type) type -/* a reference to a GLOBAL function: */ -#define EXTERN(type) extern type - - -/* This macro is used to declare a "method", that is, a function pointer. - * We want to supply prototype parameters if the compiler can cope. - * Note that the arglist parameter must be parenthesized! - * Again, you can customize this if you need special linkage keywords. - */ - -#ifdef HAVE_PROTOTYPES -#define JMETHOD(type,methodname,arglist) type (*methodname) arglist -#else -#define JMETHOD(type,methodname,arglist) type (*methodname) () -#endif - - -/* Here is the pseudo-keyword for declaring pointers that must be "far" - * on 80x86 machines. Most of the specialized coding for 80x86 is handled - * by just saying "FAR *" where such a pointer is needed. In a few places - * explicit coding is needed; see uses of the NEED_FAR_POINTERS symbol. - */ - -#ifndef FAR -#ifdef NEED_FAR_POINTERS -#define FAR far -#else -#define FAR -#endif -#endif - - -/* - * On a few systems, type boolean and/or its values FALSE, TRUE may appear - * in standard header files. Or you may have conflicts with application- - * specific header files that you want to include together with these files. - * Defining HAVE_BOOLEAN before including jpeglib.h should make it work. - */ - -#ifndef HAVE_BOOLEAN -typedef int boolean; -#endif -#ifndef FALSE /* in case these macros already exist */ -#define FALSE 0 /* values of boolean */ -#endif -#ifndef TRUE -#define TRUE 1 -#endif - - -/* - * The remaining options affect code selection within the JPEG library, - * but they don't need to be visible to most applications using the library. - * To minimize application namespace pollution, the symbols won't be - * defined unless JPEG_INTERNALS or JPEG_INTERNAL_OPTIONS has been defined. - */ - -#ifdef JPEG_INTERNALS -#define JPEG_INTERNAL_OPTIONS -#endif - -#ifdef JPEG_INTERNAL_OPTIONS - - -/* - * These defines indicate whether to include various optional functions. - * Undefining some of these symbols will produce a smaller but less capable - * library. Note that you can leave certain source files out of the - * compilation/linking process if you've #undef'd the corresponding symbols. - * (You may HAVE to do that if your compiler doesn't like null source files.) - */ - -/* Capability options common to encoder and decoder: */ - -#define DCT_ISLOW_SUPPORTED /* slow but accurate integer algorithm */ -#define DCT_IFAST_SUPPORTED /* faster, less accurate integer method */ -#define DCT_FLOAT_SUPPORTED /* floating-point: accurate, fast on fast HW */ - -/* Encoder capability options: */ - -#define C_ARITH_CODING_SUPPORTED /* Arithmetic coding back end? */ -#define C_MULTISCAN_FILES_SUPPORTED /* Multiple-scan JPEG files? */ -#define C_PROGRESSIVE_SUPPORTED /* Progressive JPEG? (Requires MULTISCAN)*/ -#define DCT_SCALING_SUPPORTED /* Input rescaling via DCT? (Requires DCT_ISLOW)*/ -#define ENTROPY_OPT_SUPPORTED /* Optimization of entropy coding parms? */ -/* Note: if you selected 12-bit data precision, it is dangerous to turn off - * ENTROPY_OPT_SUPPORTED. The standard Huffman tables are only good for 8-bit - * precision, so jchuff.c normally uses entropy optimization to compute - * usable tables for higher precision. If you don't want to do optimization, - * you'll have to supply different default Huffman tables. - * The exact same statements apply for progressive JPEG: the default tables - * don't work for progressive mode. (This may get fixed, however.) - */ -#define INPUT_SMOOTHING_SUPPORTED /* Input image smoothing option? */ - -/* Decoder capability options: */ - -#define D_ARITH_CODING_SUPPORTED /* Arithmetic coding back end? */ -#define D_MULTISCAN_FILES_SUPPORTED /* Multiple-scan JPEG files? */ -#define D_PROGRESSIVE_SUPPORTED /* Progressive JPEG? (Requires MULTISCAN)*/ -#define IDCT_SCALING_SUPPORTED /* Output rescaling via IDCT? */ -#define SAVE_MARKERS_SUPPORTED /* jpeg_save_markers() needed? */ -#define BLOCK_SMOOTHING_SUPPORTED /* Block smoothing? (Progressive only) */ -#undef UPSAMPLE_SCALING_SUPPORTED /* Output rescaling at upsample stage? */ -#define UPSAMPLE_MERGING_SUPPORTED /* Fast path for sloppy upsampling? */ -#define QUANT_1PASS_SUPPORTED /* 1-pass color quantization? */ -#define QUANT_2PASS_SUPPORTED /* 2-pass color quantization? */ - -/* more capability options later, no doubt */ - - -/* - * Ordering of RGB data in scanlines passed to or from the application. - * If your application wants to deal with data in the order B,G,R, just - * change these macros. You can also deal with formats such as R,G,B,X - * (one extra byte per pixel) by changing RGB_PIXELSIZE. Note that changing - * the offsets will also change the order in which colormap data is organized. - * RESTRICTIONS: - * 1. The sample applications cjpeg,djpeg do NOT support modified RGB formats. - * 2. The color quantizer modules will not behave desirably if RGB_PIXELSIZE - * is not 3 (they don't understand about dummy color components!). So you - * can't use color quantization if you change that value. - */ - -#define RGB_RED 0 /* Offset of Red in an RGB scanline element */ -#define RGB_GREEN 1 /* Offset of Green */ -#define RGB_BLUE 2 /* Offset of Blue */ -#define RGB_PIXELSIZE 3 /* JSAMPLEs per RGB scanline element */ - - -/* Definitions for speed-related optimizations. */ - - -/* If your compiler supports inline functions, define INLINE - * as the inline keyword; otherwise define it as empty. - */ - -#ifndef INLINE -#ifdef __GNUC__ /* for instance, GNU C knows about inline */ -#define INLINE __inline__ -#endif -#ifndef INLINE -#define INLINE /* default is to define it as empty */ -#endif -#endif - - -/* On some machines (notably 68000 series) "int" is 32 bits, but multiplying - * two 16-bit shorts is faster than multiplying two ints. Define MULTIPLIER - * as short on such a machine. MULTIPLIER must be at least 16 bits wide. - */ - -#ifndef MULTIPLIER -#define MULTIPLIER int /* type for fastest integer multiply */ -#endif - - -/* FAST_FLOAT should be either float or double, whichever is done faster - * by your compiler. (Note that this type is only used in the floating point - * DCT routines, so it only matters if you've defined DCT_FLOAT_SUPPORTED.) - * Typically, float is faster in ANSI C compilers, while double is faster in - * pre-ANSI compilers (because they insist on converting to double anyway). - * The code below therefore chooses float if we have ANSI-style prototypes. - */ - -#ifndef FAST_FLOAT -#ifdef HAVE_PROTOTYPES -#define FAST_FLOAT float -#else -#define FAST_FLOAT double -#endif -#endif - -#endif /* JPEG_INTERNAL_OPTIONS */ diff --git a/jpg/jpegint.h b/jpg/jpegint.h deleted file mode 100644 index c0d5c14..0000000 --- a/jpg/jpegint.h +++ /dev/null @@ -1,426 +0,0 @@ -/* - * jpegint.h - * - * Copyright (C) 1991-1997, Thomas G. Lane. - * Modified 1997-2011 by Guido Vollbeding. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file provides common declarations for the various JPEG modules. - * These declarations are considered internal to the JPEG library; most - * applications using the library shouldn't need to include this file. - */ - - -/* Declarations for both compression & decompression */ - -typedef enum { /* Operating modes for buffer controllers */ - JBUF_PASS_THRU, /* Plain stripwise operation */ - /* Remaining modes require a full-image buffer to have been created */ - JBUF_SAVE_SOURCE, /* Run source subobject only, save output */ - JBUF_CRANK_DEST, /* Run dest subobject only, using saved data */ - JBUF_SAVE_AND_PASS /* Run both subobjects, save output */ -} J_BUF_MODE; - -/* Values of global_state field (jdapi.c has some dependencies on ordering!) */ -#define CSTATE_START 100 /* after create_compress */ -#define CSTATE_SCANNING 101 /* start_compress done, write_scanlines OK */ -#define CSTATE_RAW_OK 102 /* start_compress done, write_raw_data OK */ -#define CSTATE_WRCOEFS 103 /* jpeg_write_coefficients done */ -#define DSTATE_START 200 /* after create_decompress */ -#define DSTATE_INHEADER 201 /* reading header markers, no SOS yet */ -#define DSTATE_READY 202 /* found SOS, ready for start_decompress */ -#define DSTATE_PRELOAD 203 /* reading multiscan file in start_decompress*/ -#define DSTATE_PRESCAN 204 /* performing dummy pass for 2-pass quant */ -#define DSTATE_SCANNING 205 /* start_decompress done, read_scanlines OK */ -#define DSTATE_RAW_OK 206 /* start_decompress done, read_raw_data OK */ -#define DSTATE_BUFIMAGE 207 /* expecting jpeg_start_output */ -#define DSTATE_BUFPOST 208 /* looking for SOS/EOI in jpeg_finish_output */ -#define DSTATE_RDCOEFS 209 /* reading file in jpeg_read_coefficients */ -#define DSTATE_STOPPING 210 /* looking for EOI in jpeg_finish_decompress */ - - -/* Declarations for compression modules */ - -/* Master control module */ -struct jpeg_comp_master { - JMETHOD(void, prepare_for_pass, (j_compress_ptr cinfo)); - JMETHOD(void, pass_startup, (j_compress_ptr cinfo)); - JMETHOD(void, finish_pass, (j_compress_ptr cinfo)); - - /* State variables made visible to other modules */ - boolean call_pass_startup; /* True if pass_startup must be called */ - boolean is_last_pass; /* True during last pass */ -}; - -/* Main buffer control (downsampled-data buffer) */ -struct jpeg_c_main_controller { - JMETHOD(void, start_pass, (j_compress_ptr cinfo, J_BUF_MODE pass_mode)); - JMETHOD(void, process_data, (j_compress_ptr cinfo, - JSAMPARRAY input_buf, JDIMENSION *in_row_ctr, - JDIMENSION in_rows_avail)); -}; - -/* Compression preprocessing (downsampling input buffer control) */ -struct jpeg_c_prep_controller { - JMETHOD(void, start_pass, (j_compress_ptr cinfo, J_BUF_MODE pass_mode)); - JMETHOD(void, pre_process_data, (j_compress_ptr cinfo, - JSAMPARRAY input_buf, - JDIMENSION *in_row_ctr, - JDIMENSION in_rows_avail, - JSAMPIMAGE output_buf, - JDIMENSION *out_row_group_ctr, - JDIMENSION out_row_groups_avail)); -}; - -/* Coefficient buffer control */ -struct jpeg_c_coef_controller { - JMETHOD(void, start_pass, (j_compress_ptr cinfo, J_BUF_MODE pass_mode)); - JMETHOD(boolean, compress_data, (j_compress_ptr cinfo, - JSAMPIMAGE input_buf)); -}; - -/* Colorspace conversion */ -struct jpeg_color_converter { - JMETHOD(void, start_pass, (j_compress_ptr cinfo)); - JMETHOD(void, color_convert, (j_compress_ptr cinfo, - JSAMPARRAY input_buf, JSAMPIMAGE output_buf, - JDIMENSION output_row, int num_rows)); -}; - -/* Downsampling */ -struct jpeg_downsampler { - JMETHOD(void, start_pass, (j_compress_ptr cinfo)); - JMETHOD(void, downsample, (j_compress_ptr cinfo, - JSAMPIMAGE input_buf, JDIMENSION in_row_index, - JSAMPIMAGE output_buf, - JDIMENSION out_row_group_index)); - - boolean need_context_rows; /* TRUE if need rows above & below */ -}; - -/* Forward DCT (also controls coefficient quantization) */ -typedef JMETHOD(void, forward_DCT_ptr, - (j_compress_ptr cinfo, jpeg_component_info * compptr, - JSAMPARRAY sample_data, JBLOCKROW coef_blocks, - JDIMENSION start_row, JDIMENSION start_col, - JDIMENSION num_blocks)); - -struct jpeg_forward_dct { - JMETHOD(void, start_pass, (j_compress_ptr cinfo)); - /* It is useful to allow each component to have a separate FDCT method. */ - forward_DCT_ptr forward_DCT[MAX_COMPONENTS]; -}; - -/* Entropy encoding */ -struct jpeg_entropy_encoder { - JMETHOD(void, start_pass, (j_compress_ptr cinfo, boolean gather_statistics)); - JMETHOD(boolean, encode_mcu, (j_compress_ptr cinfo, JBLOCKROW *MCU_data)); - JMETHOD(void, finish_pass, (j_compress_ptr cinfo)); -}; - -/* Marker writing */ -struct jpeg_marker_writer { - JMETHOD(void, write_file_header, (j_compress_ptr cinfo)); - JMETHOD(void, write_frame_header, (j_compress_ptr cinfo)); - JMETHOD(void, write_scan_header, (j_compress_ptr cinfo)); - JMETHOD(void, write_file_trailer, (j_compress_ptr cinfo)); - JMETHOD(void, write_tables_only, (j_compress_ptr cinfo)); - /* These routines are exported to allow insertion of extra markers */ - /* Probably only COM and APPn markers should be written this way */ - JMETHOD(void, write_marker_header, (j_compress_ptr cinfo, int marker, - unsigned int datalen)); - JMETHOD(void, write_marker_byte, (j_compress_ptr cinfo, int val)); -}; - - -/* Declarations for decompression modules */ - -/* Master control module */ -struct jpeg_decomp_master { - JMETHOD(void, prepare_for_output_pass, (j_decompress_ptr cinfo)); - JMETHOD(void, finish_output_pass, (j_decompress_ptr cinfo)); - - /* State variables made visible to other modules */ - boolean is_dummy_pass; /* True during 1st pass for 2-pass quant */ -}; - -/* Input control module */ -struct jpeg_input_controller { - JMETHOD(int, consume_input, (j_decompress_ptr cinfo)); - JMETHOD(void, reset_input_controller, (j_decompress_ptr cinfo)); - JMETHOD(void, start_input_pass, (j_decompress_ptr cinfo)); - JMETHOD(void, finish_input_pass, (j_decompress_ptr cinfo)); - - /* State variables made visible to other modules */ - boolean has_multiple_scans; /* True if file has multiple scans */ - boolean eoi_reached; /* True when EOI has been consumed */ -}; - -/* Main buffer control (downsampled-data buffer) */ -struct jpeg_d_main_controller { - JMETHOD(void, start_pass, (j_decompress_ptr cinfo, J_BUF_MODE pass_mode)); - JMETHOD(void, process_data, (j_decompress_ptr cinfo, - JSAMPARRAY output_buf, JDIMENSION *out_row_ctr, - JDIMENSION out_rows_avail)); -}; - -/* Coefficient buffer control */ -struct jpeg_d_coef_controller { - JMETHOD(void, start_input_pass, (j_decompress_ptr cinfo)); - JMETHOD(int, consume_data, (j_decompress_ptr cinfo)); - JMETHOD(void, start_output_pass, (j_decompress_ptr cinfo)); - JMETHOD(int, decompress_data, (j_decompress_ptr cinfo, - JSAMPIMAGE output_buf)); - /* Pointer to array of coefficient virtual arrays, or NULL if none */ - jvirt_barray_ptr *coef_arrays; -}; - -/* Decompression postprocessing (color quantization buffer control) */ -struct jpeg_d_post_controller { - JMETHOD(void, start_pass, (j_decompress_ptr cinfo, J_BUF_MODE pass_mode)); - JMETHOD(void, post_process_data, (j_decompress_ptr cinfo, - JSAMPIMAGE input_buf, - JDIMENSION *in_row_group_ctr, - JDIMENSION in_row_groups_avail, - JSAMPARRAY output_buf, - JDIMENSION *out_row_ctr, - JDIMENSION out_rows_avail)); -}; - -/* Marker reading & parsing */ -struct jpeg_marker_reader { - JMETHOD(void, reset_marker_reader, (j_decompress_ptr cinfo)); - /* Read markers until SOS or EOI. - * Returns same codes as are defined for jpeg_consume_input: - * JPEG_SUSPENDED, JPEG_REACHED_SOS, or JPEG_REACHED_EOI. - */ - JMETHOD(int, read_markers, (j_decompress_ptr cinfo)); - /* Read a restart marker --- exported for use by entropy decoder only */ - jpeg_marker_parser_method read_restart_marker; - - /* State of marker reader --- nominally internal, but applications - * supplying COM or APPn handlers might like to know the state. - */ - boolean saw_SOI; /* found SOI? */ - boolean saw_SOF; /* found SOF? */ - int next_restart_num; /* next restart number expected (0-7) */ - unsigned int discarded_bytes; /* # of bytes skipped looking for a marker */ -}; - -/* Entropy decoding */ -struct jpeg_entropy_decoder { - JMETHOD(void, start_pass, (j_decompress_ptr cinfo)); - JMETHOD(boolean, decode_mcu, (j_decompress_ptr cinfo, - JBLOCKROW *MCU_data)); -}; - -/* Inverse DCT (also performs dequantization) */ -typedef JMETHOD(void, inverse_DCT_method_ptr, - (j_decompress_ptr cinfo, jpeg_component_info * compptr, - JCOEFPTR coef_block, - JSAMPARRAY output_buf, JDIMENSION output_col)); - -struct jpeg_inverse_dct { - JMETHOD(void, start_pass, (j_decompress_ptr cinfo)); - /* It is useful to allow each component to have a separate IDCT method. */ - inverse_DCT_method_ptr inverse_DCT[MAX_COMPONENTS]; -}; - -/* Upsampling (note that upsampler must also call color converter) */ -struct jpeg_upsampler { - JMETHOD(void, start_pass, (j_decompress_ptr cinfo)); - JMETHOD(void, upsample, (j_decompress_ptr cinfo, - JSAMPIMAGE input_buf, - JDIMENSION *in_row_group_ctr, - JDIMENSION in_row_groups_avail, - JSAMPARRAY output_buf, - JDIMENSION *out_row_ctr, - JDIMENSION out_rows_avail)); - - boolean need_context_rows; /* TRUE if need rows above & below */ -}; - -/* Colorspace conversion */ -struct jpeg_color_deconverter { - JMETHOD(void, start_pass, (j_decompress_ptr cinfo)); - JMETHOD(void, color_convert, (j_decompress_ptr cinfo, - JSAMPIMAGE input_buf, JDIMENSION input_row, - JSAMPARRAY output_buf, int num_rows)); -}; - -/* Color quantization or color precision reduction */ -struct jpeg_color_quantizer { - JMETHOD(void, start_pass, (j_decompress_ptr cinfo, boolean is_pre_scan)); - JMETHOD(void, color_quantize, (j_decompress_ptr cinfo, - JSAMPARRAY input_buf, JSAMPARRAY output_buf, - int num_rows)); - JMETHOD(void, finish_pass, (j_decompress_ptr cinfo)); - JMETHOD(void, new_color_map, (j_decompress_ptr cinfo)); -}; - - -/* Miscellaneous useful macros */ - -#undef MAX -#define MAX(a,b) ((a) > (b) ? (a) : (b)) -#undef MIN -#define MIN(a,b) ((a) < (b) ? (a) : (b)) - - -/* We assume that right shift corresponds to signed division by 2 with - * rounding towards minus infinity. This is correct for typical "arithmetic - * shift" instructions that shift in copies of the sign bit. But some - * C compilers implement >> with an unsigned shift. For these machines you - * must define RIGHT_SHIFT_IS_UNSIGNED. - * RIGHT_SHIFT provides a proper signed right shift of an INT32 quantity. - * It is only applied with constant shift counts. SHIFT_TEMPS must be - * included in the variables of any routine using RIGHT_SHIFT. - */ - -#ifdef RIGHT_SHIFT_IS_UNSIGNED -#define SHIFT_TEMPS INT32 shift_temp; -#define RIGHT_SHIFT(x,shft) \ - ((shift_temp = (x)) < 0 ? \ - (shift_temp >> (shft)) | ((~((INT32) 0)) << (32-(shft))) : \ - (shift_temp >> (shft))) -#else -#define SHIFT_TEMPS -#define RIGHT_SHIFT(x,shft) ((x) >> (shft)) -#endif - - -/* Short forms of external names for systems with brain-damaged linkers. */ - -#ifdef NEED_SHORT_EXTERNAL_NAMES -#define jinit_compress_master jICompress -#define jinit_c_master_control jICMaster -#define jinit_c_main_controller jICMainC -#define jinit_c_prep_controller jICPrepC -#define jinit_c_coef_controller jICCoefC -#define jinit_color_converter jICColor -#define jinit_downsampler jIDownsampler -#define jinit_forward_dct jIFDCT -#define jinit_huff_encoder jIHEncoder -#define jinit_arith_encoder jIAEncoder -#define jinit_marker_writer jIMWriter -#define jinit_master_decompress jIDMaster -#define jinit_d_main_controller jIDMainC -#define jinit_d_coef_controller jIDCoefC -#define jinit_d_post_controller jIDPostC -#define jinit_input_controller jIInCtlr -#define jinit_marker_reader jIMReader -#define jinit_huff_decoder jIHDecoder -#define jinit_arith_decoder jIADecoder -#define jinit_inverse_dct jIIDCT -#define jinit_upsampler jIUpsampler -#define jinit_color_deconverter jIDColor -#define jinit_1pass_quantizer jI1Quant -#define jinit_2pass_quantizer jI2Quant -#define jinit_merged_upsampler jIMUpsampler -#define jinit_memory_mgr jIMemMgr -#define jdiv_round_up jDivRound -#define jround_up jRound -#define jzero_far jZeroFar -#define jcopy_sample_rows jCopySamples -#define jcopy_block_row jCopyBlocks -#define jpeg_zigzag_order jZIGTable -#define jpeg_natural_order jZAGTable -#define jpeg_natural_order7 jZAG7Table -#define jpeg_natural_order6 jZAG6Table -#define jpeg_natural_order5 jZAG5Table -#define jpeg_natural_order4 jZAG4Table -#define jpeg_natural_order3 jZAG3Table -#define jpeg_natural_order2 jZAG2Table -#define jpeg_aritab jAriTab -#endif /* NEED_SHORT_EXTERNAL_NAMES */ - - -/* On normal machines we can apply MEMCOPY() and MEMZERO() to sample arrays - * and coefficient-block arrays. This won't work on 80x86 because the arrays - * are FAR and we're assuming a small-pointer memory model. However, some - * DOS compilers provide far-pointer versions of memcpy() and memset() even - * in the small-model libraries. These will be used if USE_FMEM is defined. - * Otherwise, the routines in jutils.c do it the hard way. - */ - -#ifndef NEED_FAR_POINTERS /* normal case, same as regular macro */ -#define FMEMZERO(target,size) MEMZERO(target,size) -#else /* 80x86 case */ -#ifdef USE_FMEM -#define FMEMZERO(target,size) _fmemset((void FAR *)(target), 0, (size_t)(size)) -#else -EXTERN(void) jzero_far JPP((void FAR * target, size_t bytestozero)); -#define FMEMZERO(target,size) jzero_far(target, size) -#endif -#endif - - -/* Compression module initialization routines */ -EXTERN(void) jinit_compress_master JPP((j_compress_ptr cinfo)); -EXTERN(void) jinit_c_master_control JPP((j_compress_ptr cinfo, - boolean transcode_only)); -EXTERN(void) jinit_c_main_controller JPP((j_compress_ptr cinfo, - boolean need_full_buffer)); -EXTERN(void) jinit_c_prep_controller JPP((j_compress_ptr cinfo, - boolean need_full_buffer)); -EXTERN(void) jinit_c_coef_controller JPP((j_compress_ptr cinfo, - boolean need_full_buffer)); -EXTERN(void) jinit_color_converter JPP((j_compress_ptr cinfo)); -EXTERN(void) jinit_downsampler JPP((j_compress_ptr cinfo)); -EXTERN(void) jinit_forward_dct JPP((j_compress_ptr cinfo)); -EXTERN(void) jinit_huff_encoder JPP((j_compress_ptr cinfo)); -EXTERN(void) jinit_arith_encoder JPP((j_compress_ptr cinfo)); -EXTERN(void) jinit_marker_writer JPP((j_compress_ptr cinfo)); -/* Decompression module initialization routines */ -EXTERN(void) jinit_master_decompress JPP((j_decompress_ptr cinfo)); -EXTERN(void) jinit_d_main_controller JPP((j_decompress_ptr cinfo, - boolean need_full_buffer)); -EXTERN(void) jinit_d_coef_controller JPP((j_decompress_ptr cinfo, - boolean need_full_buffer)); -EXTERN(void) jinit_d_post_controller JPP((j_decompress_ptr cinfo, - boolean need_full_buffer)); -EXTERN(void) jinit_input_controller JPP((j_decompress_ptr cinfo)); -EXTERN(void) jinit_marker_reader JPP((j_decompress_ptr cinfo)); -EXTERN(void) jinit_huff_decoder JPP((j_decompress_ptr cinfo)); -EXTERN(void) jinit_arith_decoder JPP((j_decompress_ptr cinfo)); -EXTERN(void) jinit_inverse_dct JPP((j_decompress_ptr cinfo)); -EXTERN(void) jinit_upsampler JPP((j_decompress_ptr cinfo)); -EXTERN(void) jinit_color_deconverter JPP((j_decompress_ptr cinfo)); -EXTERN(void) jinit_1pass_quantizer JPP((j_decompress_ptr cinfo)); -EXTERN(void) jinit_2pass_quantizer JPP((j_decompress_ptr cinfo)); -EXTERN(void) jinit_merged_upsampler JPP((j_decompress_ptr cinfo)); -/* Memory manager initialization */ -EXTERN(void) jinit_memory_mgr JPP((j_common_ptr cinfo)); - -/* Utility routines in jutils.c */ -EXTERN(long) jdiv_round_up JPP((long a, long b)); -EXTERN(long) jround_up JPP((long a, long b)); -EXTERN(void) jcopy_sample_rows JPP((JSAMPARRAY input_array, int source_row, - JSAMPARRAY output_array, int dest_row, - int num_rows, JDIMENSION num_cols)); -EXTERN(void) jcopy_block_row JPP((JBLOCKROW input_row, JBLOCKROW output_row, - JDIMENSION num_blocks)); -/* Constant tables in jutils.c */ -#if 0 /* This table is not actually needed in v6a */ -extern const int jpeg_zigzag_order[]; /* natural coef order to zigzag order */ -#endif -extern const int jpeg_natural_order[]; /* zigzag coef order to natural order */ -extern const int jpeg_natural_order7[]; /* zz to natural order for 7x7 block */ -extern const int jpeg_natural_order6[]; /* zz to natural order for 6x6 block */ -extern const int jpeg_natural_order5[]; /* zz to natural order for 5x5 block */ -extern const int jpeg_natural_order4[]; /* zz to natural order for 4x4 block */ -extern const int jpeg_natural_order3[]; /* zz to natural order for 3x3 block */ -extern const int jpeg_natural_order2[]; /* zz to natural order for 2x2 block */ - -/* Arithmetic coding probability estimation tables in jaricom.c */ -extern const INT32 jpeg_aritab[]; - -/* Suppress undefined-structure complaints if necessary. */ - -#ifdef INCOMPLETE_TYPES_BROKEN -#ifndef AM_MEMORY_MANAGER /* only jmemmgr.c defines these */ -struct jvirt_sarray_control { long dummy; }; -struct jvirt_barray_control { long dummy; }; -#endif -#endif /* INCOMPLETE_TYPES_BROKEN */ diff --git a/jpg/jpeglib.h b/jpg/jpeglib.h deleted file mode 100644 index 1327cff..0000000 --- a/jpg/jpeglib.h +++ /dev/null @@ -1,1160 +0,0 @@ -/* - * jpeglib.h - * - * Copyright (C) 1991-1998, Thomas G. Lane. - * Modified 2002-2011 by Guido Vollbeding. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file defines the application interface for the JPEG library. - * Most applications using the library need only include this file, - * and perhaps jerror.h if they want to know the exact error codes. - */ - -#ifndef JPEGLIB_H -#define JPEGLIB_H - -/* - * First we include the configuration files that record how this - * installation of the JPEG library is set up. jconfig.h can be - * generated automatically for many systems. jmorecfg.h contains - * manual configuration options that most people need not worry about. - */ - -#ifndef JCONFIG_INCLUDED /* in case jinclude.h already did */ -#include "jconfig.h" /* widely used configuration options */ -#endif -#include "jmorecfg.h" /* seldom changed options */ - - -#ifdef __cplusplus -#ifndef DONT_USE_EXTERN_C -extern "C" { -#endif -#endif - -/* Version IDs for the JPEG library. - * Might be useful for tests like "#if JPEG_LIB_VERSION >= 80". - */ - -#define JPEG_LIB_VERSION 80 /* Compatibility version 8.0 */ -#define JPEG_LIB_VERSION_MAJOR 8 -#define JPEG_LIB_VERSION_MINOR 4 - - -/* Various constants determining the sizes of things. - * All of these are specified by the JPEG standard, so don't change them - * if you want to be compatible. - */ - -#define DCTSIZE 8 /* The basic DCT block is 8x8 coefficients */ -#define DCTSIZE2 64 /* DCTSIZE squared; # of elements in a block */ -#define NUM_QUANT_TBLS 4 /* Quantization tables are numbered 0..3 */ -#define NUM_HUFF_TBLS 4 /* Huffman tables are numbered 0..3 */ -#define NUM_ARITH_TBLS 16 /* Arith-coding tables are numbered 0..15 */ -#define MAX_COMPS_IN_SCAN 4 /* JPEG limit on # of components in one scan */ -#define MAX_SAMP_FACTOR 4 /* JPEG limit on sampling factors */ -/* Unfortunately, some bozo at Adobe saw no reason to be bound by the standard; - * the PostScript DCT filter can emit files with many more than 10 blocks/MCU. - * If you happen to run across such a file, you can up D_MAX_BLOCKS_IN_MCU - * to handle it. We even let you do this from the jconfig.h file. However, - * we strongly discourage changing C_MAX_BLOCKS_IN_MCU; just because Adobe - * sometimes emits noncompliant files doesn't mean you should too. - */ -#define C_MAX_BLOCKS_IN_MCU 10 /* compressor's limit on blocks per MCU */ -#ifndef D_MAX_BLOCKS_IN_MCU -#define D_MAX_BLOCKS_IN_MCU 10 /* decompressor's limit on blocks per MCU */ -#endif - - -/* Data structures for images (arrays of samples and of DCT coefficients). - * On 80x86 machines, the image arrays are too big for near pointers, - * but the pointer arrays can fit in near memory. - */ - -typedef JSAMPLE FAR *JSAMPROW; /* ptr to one image row of pixel samples. */ -typedef JSAMPROW *JSAMPARRAY; /* ptr to some rows (a 2-D sample array) */ -typedef JSAMPARRAY *JSAMPIMAGE; /* a 3-D sample array: top index is color */ - -typedef JCOEF JBLOCK[DCTSIZE2]; /* one block of coefficients */ -typedef JBLOCK FAR *JBLOCKROW; /* pointer to one row of coefficient blocks */ -typedef JBLOCKROW *JBLOCKARRAY; /* a 2-D array of coefficient blocks */ -typedef JBLOCKARRAY *JBLOCKIMAGE; /* a 3-D array of coefficient blocks */ - -typedef JCOEF FAR *JCOEFPTR; /* useful in a couple of places */ - - -/* Types for JPEG compression parameters and working tables. */ - - -/* DCT coefficient quantization tables. */ - -typedef struct { - /* This array gives the coefficient quantizers in natural array order - * (not the zigzag order in which they are stored in a JPEG DQT marker). - * CAUTION: IJG versions prior to v6a kept this array in zigzag order. - */ - UINT16 quantval[DCTSIZE2]; /* quantization step for each coefficient */ - /* This field is used only during compression. It's initialized FALSE when - * the table is created, and set TRUE when it's been output to the file. - * You could suppress output of a table by setting this to TRUE. - * (See jpeg_suppress_tables for an example.) - */ - boolean sent_table; /* TRUE when table has been output */ -} JQUANT_TBL; - - -/* Huffman coding tables. */ - -typedef struct { - /* These two fields directly represent the contents of a JPEG DHT marker */ - UINT8 bits[17]; /* bits[k] = # of symbols with codes of */ - /* length k bits; bits[0] is unused */ - UINT8 huffval[256]; /* The symbols, in order of incr code length */ - /* This field is used only during compression. It's initialized FALSE when - * the table is created, and set TRUE when it's been output to the file. - * You could suppress output of a table by setting this to TRUE. - * (See jpeg_suppress_tables for an example.) - */ - boolean sent_table; /* TRUE when table has been output */ -} JHUFF_TBL; - - -/* Basic info about one component (color channel). */ - -typedef struct { - /* These values are fixed over the whole image. */ - /* For compression, they must be supplied by parameter setup; */ - /* for decompression, they are read from the SOF marker. */ - int component_id; /* identifier for this component (0..255) */ - int component_index; /* its index in SOF or cinfo->comp_info[] */ - int h_samp_factor; /* horizontal sampling factor (1..4) */ - int v_samp_factor; /* vertical sampling factor (1..4) */ - int quant_tbl_no; /* quantization table selector (0..3) */ - /* These values may vary between scans. */ - /* For compression, they must be supplied by parameter setup; */ - /* for decompression, they are read from the SOS marker. */ - /* The decompressor output side may not use these variables. */ - int dc_tbl_no; /* DC entropy table selector (0..3) */ - int ac_tbl_no; /* AC entropy table selector (0..3) */ - - /* Remaining fields should be treated as private by applications. */ - - /* These values are computed during compression or decompression startup: */ - /* Component's size in DCT blocks. - * Any dummy blocks added to complete an MCU are not counted; therefore - * these values do not depend on whether a scan is interleaved or not. - */ - JDIMENSION width_in_blocks; - JDIMENSION height_in_blocks; - /* Size of a DCT block in samples, - * reflecting any scaling we choose to apply during the DCT step. - * Values from 1 to 16 are supported. - * Note that different components may receive different DCT scalings. - */ - int DCT_h_scaled_size; - int DCT_v_scaled_size; - /* The downsampled dimensions are the component's actual, unpadded number - * of samples at the main buffer (preprocessing/compression interface); - * DCT scaling is included, so - * downsampled_width = ceil(image_width * Hi/Hmax * DCT_h_scaled_size/DCTSIZE) - * and similarly for height. - */ - JDIMENSION downsampled_width; /* actual width in samples */ - JDIMENSION downsampled_height; /* actual height in samples */ - /* This flag is used only for decompression. In cases where some of the - * components will be ignored (eg grayscale output from YCbCr image), - * we can skip most computations for the unused components. - */ - boolean component_needed; /* do we need the value of this component? */ - - /* These values are computed before starting a scan of the component. */ - /* The decompressor output side may not use these variables. */ - int MCU_width; /* number of blocks per MCU, horizontally */ - int MCU_height; /* number of blocks per MCU, vertically */ - int MCU_blocks; /* MCU_width * MCU_height */ - int MCU_sample_width; /* MCU width in samples: MCU_width * DCT_h_scaled_size */ - int last_col_width; /* # of non-dummy blocks across in last MCU */ - int last_row_height; /* # of non-dummy blocks down in last MCU */ - - /* Saved quantization table for component; NULL if none yet saved. - * See jdinput.c comments about the need for this information. - * This field is currently used only for decompression. - */ - JQUANT_TBL * quant_table; - - /* Private per-component storage for DCT or IDCT subsystem. */ - void * dct_table; -} jpeg_component_info; - - -/* The script for encoding a multiple-scan file is an array of these: */ - -typedef struct { - int comps_in_scan; /* number of components encoded in this scan */ - int component_index[MAX_COMPS_IN_SCAN]; /* their SOF/comp_info[] indexes */ - int Ss, Se; /* progressive JPEG spectral selection parms */ - int Ah, Al; /* progressive JPEG successive approx. parms */ -} jpeg_scan_info; - -/* The decompressor can save APPn and COM markers in a list of these: */ - -typedef struct jpeg_marker_struct FAR * jpeg_saved_marker_ptr; - -struct jpeg_marker_struct { - jpeg_saved_marker_ptr next; /* next in list, or NULL */ - UINT8 marker; /* marker code: JPEG_COM, or JPEG_APP0+n */ - unsigned int original_length; /* # bytes of data in the file */ - unsigned int data_length; /* # bytes of data saved at data[] */ - JOCTET FAR * data; /* the data contained in the marker */ - /* the marker length word is not counted in data_length or original_length */ -}; - -/* Known color spaces. */ - -typedef enum { - JCS_UNKNOWN, /* error/unspecified */ - JCS_GRAYSCALE, /* monochrome */ - JCS_RGB, /* red/green/blue */ - JCS_YCbCr, /* Y/Cb/Cr (also known as YUV) */ - JCS_CMYK, /* C/M/Y/K */ - JCS_YCCK /* Y/Cb/Cr/K */ -} J_COLOR_SPACE; - -/* DCT/IDCT algorithm options. */ - -typedef enum { - JDCT_ISLOW, /* slow but accurate integer algorithm */ - JDCT_IFAST, /* faster, less accurate integer method */ - JDCT_FLOAT /* floating-point: accurate, fast on fast HW */ -} J_DCT_METHOD; - -#ifndef JDCT_DEFAULT /* may be overridden in jconfig.h */ -#define JDCT_DEFAULT JDCT_ISLOW -#endif -#ifndef JDCT_FASTEST /* may be overridden in jconfig.h */ -#define JDCT_FASTEST JDCT_IFAST -#endif - -/* Dithering options for decompression. */ - -typedef enum { - JDITHER_NONE, /* no dithering */ - JDITHER_ORDERED, /* simple ordered dither */ - JDITHER_FS /* Floyd-Steinberg error diffusion dither */ -} J_DITHER_MODE; - - -/* Common fields between JPEG compression and decompression master structs. */ - -#define jpeg_common_fields \ - struct jpeg_error_mgr * err; /* Error handler module */\ - struct jpeg_memory_mgr * mem; /* Memory manager module */\ - struct jpeg_progress_mgr * progress; /* Progress monitor, or NULL if none */\ - void * client_data; /* Available for use by application */\ - boolean is_decompressor; /* So common code can tell which is which */\ - int global_state /* For checking call sequence validity */ - -/* Routines that are to be used by both halves of the library are declared - * to receive a pointer to this structure. There are no actual instances of - * jpeg_common_struct, only of jpeg_compress_struct and jpeg_decompress_struct. - */ -struct jpeg_common_struct { - jpeg_common_fields; /* Fields common to both master struct types */ - /* Additional fields follow in an actual jpeg_compress_struct or - * jpeg_decompress_struct. All three structs must agree on these - * initial fields! (This would be a lot cleaner in C++.) - */ -}; - -typedef struct jpeg_common_struct * j_common_ptr; -typedef struct jpeg_compress_struct * j_compress_ptr; -typedef struct jpeg_decompress_struct * j_decompress_ptr; - - -/* Master record for a compression instance */ - -struct jpeg_compress_struct { - jpeg_common_fields; /* Fields shared with jpeg_decompress_struct */ - - /* Destination for compressed data */ - struct jpeg_destination_mgr * dest; - - /* Description of source image --- these fields must be filled in by - * outer application before starting compression. in_color_space must - * be correct before you can even call jpeg_set_defaults(). - */ - - JDIMENSION image_width; /* input image width */ - JDIMENSION image_height; /* input image height */ - int input_components; /* # of color components in input image */ - J_COLOR_SPACE in_color_space; /* colorspace of input image */ - - double input_gamma; /* image gamma of input image */ - - /* Compression parameters --- these fields must be set before calling - * jpeg_start_compress(). We recommend calling jpeg_set_defaults() to - * initialize everything to reasonable defaults, then changing anything - * the application specifically wants to change. That way you won't get - * burnt when new parameters are added. Also note that there are several - * helper routines to simplify changing parameters. - */ - - unsigned int scale_num, scale_denom; /* fraction by which to scale image */ - - JDIMENSION jpeg_width; /* scaled JPEG image width */ - JDIMENSION jpeg_height; /* scaled JPEG image height */ - /* Dimensions of actual JPEG image that will be written to file, - * derived from input dimensions by scaling factors above. - * These fields are computed by jpeg_start_compress(). - * You can also use jpeg_calc_jpeg_dimensions() to determine these values - * in advance of calling jpeg_start_compress(). - */ - - int data_precision; /* bits of precision in image data */ - - int num_components; /* # of color components in JPEG image */ - J_COLOR_SPACE jpeg_color_space; /* colorspace of JPEG image */ - - jpeg_component_info * comp_info; - /* comp_info[i] describes component that appears i'th in SOF */ - - JQUANT_TBL * quant_tbl_ptrs[NUM_QUANT_TBLS]; - int q_scale_factor[NUM_QUANT_TBLS]; - /* ptrs to coefficient quantization tables, or NULL if not defined, - * and corresponding scale factors (percentage, initialized 100). - */ - - JHUFF_TBL * dc_huff_tbl_ptrs[NUM_HUFF_TBLS]; - JHUFF_TBL * ac_huff_tbl_ptrs[NUM_HUFF_TBLS]; - /* ptrs to Huffman coding tables, or NULL if not defined */ - - UINT8 arith_dc_L[NUM_ARITH_TBLS]; /* L values for DC arith-coding tables */ - UINT8 arith_dc_U[NUM_ARITH_TBLS]; /* U values for DC arith-coding tables */ - UINT8 arith_ac_K[NUM_ARITH_TBLS]; /* Kx values for AC arith-coding tables */ - - int num_scans; /* # of entries in scan_info array */ - const jpeg_scan_info * scan_info; /* script for multi-scan file, or NULL */ - /* The default value of scan_info is NULL, which causes a single-scan - * sequential JPEG file to be emitted. To create a multi-scan file, - * set num_scans and scan_info to point to an array of scan definitions. - */ - - boolean raw_data_in; /* TRUE=caller supplies downsampled data */ - boolean arith_code; /* TRUE=arithmetic coding, FALSE=Huffman */ - boolean optimize_coding; /* TRUE=optimize entropy encoding parms */ - boolean CCIR601_sampling; /* TRUE=first samples are cosited */ - boolean do_fancy_downsampling; /* TRUE=apply fancy downsampling */ - int smoothing_factor; /* 1..100, or 0 for no input smoothing */ - J_DCT_METHOD dct_method; /* DCT algorithm selector */ - - /* The restart interval can be specified in absolute MCUs by setting - * restart_interval, or in MCU rows by setting restart_in_rows - * (in which case the correct restart_interval will be figured - * for each scan). - */ - unsigned int restart_interval; /* MCUs per restart, or 0 for no restart */ - int restart_in_rows; /* if > 0, MCU rows per restart interval */ - - /* Parameters controlling emission of special markers. */ - - boolean write_JFIF_header; /* should a JFIF marker be written? */ - UINT8 JFIF_major_version; /* What to write for the JFIF version number */ - UINT8 JFIF_minor_version; - /* These three values are not used by the JPEG code, merely copied */ - /* into the JFIF APP0 marker. density_unit can be 0 for unknown, */ - /* 1 for dots/inch, or 2 for dots/cm. Note that the pixel aspect */ - /* ratio is defined by X_density/Y_density even when density_unit=0. */ - UINT8 density_unit; /* JFIF code for pixel size units */ - UINT16 X_density; /* Horizontal pixel density */ - UINT16 Y_density; /* Vertical pixel density */ - boolean write_Adobe_marker; /* should an Adobe marker be written? */ - - /* State variable: index of next scanline to be written to - * jpeg_write_scanlines(). Application may use this to control its - * processing loop, e.g., "while (next_scanline < image_height)". - */ - - JDIMENSION next_scanline; /* 0 .. image_height-1 */ - - /* Remaining fields are known throughout compressor, but generally - * should not be touched by a surrounding application. - */ - - /* - * These fields are computed during compression startup - */ - boolean progressive_mode; /* TRUE if scan script uses progressive mode */ - int max_h_samp_factor; /* largest h_samp_factor */ - int max_v_samp_factor; /* largest v_samp_factor */ - - int min_DCT_h_scaled_size; /* smallest DCT_h_scaled_size of any component */ - int min_DCT_v_scaled_size; /* smallest DCT_v_scaled_size of any component */ - - JDIMENSION total_iMCU_rows; /* # of iMCU rows to be input to coef ctlr */ - /* The coefficient controller receives data in units of MCU rows as defined - * for fully interleaved scans (whether the JPEG file is interleaved or not). - * There are v_samp_factor * DCTSIZE sample rows of each component in an - * "iMCU" (interleaved MCU) row. - */ - - /* - * These fields are valid during any one scan. - * They describe the components and MCUs actually appearing in the scan. - */ - int comps_in_scan; /* # of JPEG components in this scan */ - jpeg_component_info * cur_comp_info[MAX_COMPS_IN_SCAN]; - /* *cur_comp_info[i] describes component that appears i'th in SOS */ - - JDIMENSION MCUs_per_row; /* # of MCUs across the image */ - JDIMENSION MCU_rows_in_scan; /* # of MCU rows in the image */ - - int blocks_in_MCU; /* # of DCT blocks per MCU */ - int MCU_membership[C_MAX_BLOCKS_IN_MCU]; - /* MCU_membership[i] is index in cur_comp_info of component owning */ - /* i'th block in an MCU */ - - int Ss, Se, Ah, Al; /* progressive JPEG parameters for scan */ - - int block_size; /* the basic DCT block size: 1..16 */ - const int * natural_order; /* natural-order position array */ - int lim_Se; /* min( Se, DCTSIZE2-1 ) */ - - /* - * Links to compression subobjects (methods and private variables of modules) - */ - struct jpeg_comp_master * master; - struct jpeg_c_main_controller * main; - struct jpeg_c_prep_controller * prep; - struct jpeg_c_coef_controller * coef; - struct jpeg_marker_writer * marker; - struct jpeg_color_converter * cconvert; - struct jpeg_downsampler * downsample; - struct jpeg_forward_dct * fdct; - struct jpeg_entropy_encoder * entropy; - jpeg_scan_info * script_space; /* workspace for jpeg_simple_progression */ - int script_space_size; -}; - - -/* Master record for a decompression instance */ - -struct jpeg_decompress_struct { - jpeg_common_fields; /* Fields shared with jpeg_compress_struct */ - - /* Source of compressed data */ - struct jpeg_source_mgr * src; - - /* Basic description of image --- filled in by jpeg_read_header(). */ - /* Application may inspect these values to decide how to process image. */ - - JDIMENSION image_width; /* nominal image width (from SOF marker) */ - JDIMENSION image_height; /* nominal image height */ - int num_components; /* # of color components in JPEG image */ - J_COLOR_SPACE jpeg_color_space; /* colorspace of JPEG image */ - - /* Decompression processing parameters --- these fields must be set before - * calling jpeg_start_decompress(). Note that jpeg_read_header() initializes - * them to default values. - */ - - J_COLOR_SPACE out_color_space; /* colorspace for output */ - - unsigned int scale_num, scale_denom; /* fraction by which to scale image */ - - double output_gamma; /* image gamma wanted in output */ - - boolean buffered_image; /* TRUE=multiple output passes */ - boolean raw_data_out; /* TRUE=downsampled data wanted */ - - J_DCT_METHOD dct_method; /* IDCT algorithm selector */ - boolean do_fancy_upsampling; /* TRUE=apply fancy upsampling */ - boolean do_block_smoothing; /* TRUE=apply interblock smoothing */ - - boolean quantize_colors; /* TRUE=colormapped output wanted */ - /* the following are ignored if not quantize_colors: */ - J_DITHER_MODE dither_mode; /* type of color dithering to use */ - boolean two_pass_quantize; /* TRUE=use two-pass color quantization */ - int desired_number_of_colors; /* max # colors to use in created colormap */ - /* these are significant only in buffered-image mode: */ - boolean enable_1pass_quant; /* enable future use of 1-pass quantizer */ - boolean enable_external_quant;/* enable future use of external colormap */ - boolean enable_2pass_quant; /* enable future use of 2-pass quantizer */ - - /* Description of actual output image that will be returned to application. - * These fields are computed by jpeg_start_decompress(). - * You can also use jpeg_calc_output_dimensions() to determine these values - * in advance of calling jpeg_start_decompress(). - */ - - JDIMENSION output_width; /* scaled image width */ - JDIMENSION output_height; /* scaled image height */ - int out_color_components; /* # of color components in out_color_space */ - int output_components; /* # of color components returned */ - /* output_components is 1 (a colormap index) when quantizing colors; - * otherwise it equals out_color_components. - */ - int rec_outbuf_height; /* min recommended height of scanline buffer */ - /* If the buffer passed to jpeg_read_scanlines() is less than this many rows - * high, space and time will be wasted due to unnecessary data copying. - * Usually rec_outbuf_height will be 1 or 2, at most 4. - */ - - /* When quantizing colors, the output colormap is described by these fields. - * The application can supply a colormap by setting colormap non-NULL before - * calling jpeg_start_decompress; otherwise a colormap is created during - * jpeg_start_decompress or jpeg_start_output. - * The map has out_color_components rows and actual_number_of_colors columns. - */ - int actual_number_of_colors; /* number of entries in use */ - JSAMPARRAY colormap; /* The color map as a 2-D pixel array */ - - /* State variables: these variables indicate the progress of decompression. - * The application may examine these but must not modify them. - */ - - /* Row index of next scanline to be read from jpeg_read_scanlines(). - * Application may use this to control its processing loop, e.g., - * "while (output_scanline < output_height)". - */ - JDIMENSION output_scanline; /* 0 .. output_height-1 */ - - /* Current input scan number and number of iMCU rows completed in scan. - * These indicate the progress of the decompressor input side. - */ - int input_scan_number; /* Number of SOS markers seen so far */ - JDIMENSION input_iMCU_row; /* Number of iMCU rows completed */ - - /* The "output scan number" is the notional scan being displayed by the - * output side. The decompressor will not allow output scan/row number - * to get ahead of input scan/row, but it can fall arbitrarily far behind. - */ - int output_scan_number; /* Nominal scan number being displayed */ - JDIMENSION output_iMCU_row; /* Number of iMCU rows read */ - - /* Current progression status. coef_bits[c][i] indicates the precision - * with which component c's DCT coefficient i (in zigzag order) is known. - * It is -1 when no data has yet been received, otherwise it is the point - * transform (shift) value for the most recent scan of the coefficient - * (thus, 0 at completion of the progression). - * This pointer is NULL when reading a non-progressive file. - */ - int (*coef_bits)[DCTSIZE2]; /* -1 or current Al value for each coef */ - - /* Internal JPEG parameters --- the application usually need not look at - * these fields. Note that the decompressor output side may not use - * any parameters that can change between scans. - */ - - /* Quantization and Huffman tables are carried forward across input - * datastreams when processing abbreviated JPEG datastreams. - */ - - JQUANT_TBL * quant_tbl_ptrs[NUM_QUANT_TBLS]; - /* ptrs to coefficient quantization tables, or NULL if not defined */ - - JHUFF_TBL * dc_huff_tbl_ptrs[NUM_HUFF_TBLS]; - JHUFF_TBL * ac_huff_tbl_ptrs[NUM_HUFF_TBLS]; - /* ptrs to Huffman coding tables, or NULL if not defined */ - - /* These parameters are never carried across datastreams, since they - * are given in SOF/SOS markers or defined to be reset by SOI. - */ - - int data_precision; /* bits of precision in image data */ - - jpeg_component_info * comp_info; - /* comp_info[i] describes component that appears i'th in SOF */ - - boolean is_baseline; /* TRUE if Baseline SOF0 encountered */ - boolean progressive_mode; /* TRUE if SOFn specifies progressive mode */ - boolean arith_code; /* TRUE=arithmetic coding, FALSE=Huffman */ - - UINT8 arith_dc_L[NUM_ARITH_TBLS]; /* L values for DC arith-coding tables */ - UINT8 arith_dc_U[NUM_ARITH_TBLS]; /* U values for DC arith-coding tables */ - UINT8 arith_ac_K[NUM_ARITH_TBLS]; /* Kx values for AC arith-coding tables */ - - unsigned int restart_interval; /* MCUs per restart interval, or 0 for no restart */ - - /* These fields record data obtained from optional markers recognized by - * the JPEG library. - */ - boolean saw_JFIF_marker; /* TRUE iff a JFIF APP0 marker was found */ - /* Data copied from JFIF marker; only valid if saw_JFIF_marker is TRUE: */ - UINT8 JFIF_major_version; /* JFIF version number */ - UINT8 JFIF_minor_version; - UINT8 density_unit; /* JFIF code for pixel size units */ - UINT16 X_density; /* Horizontal pixel density */ - UINT16 Y_density; /* Vertical pixel density */ - boolean saw_Adobe_marker; /* TRUE iff an Adobe APP14 marker was found */ - UINT8 Adobe_transform; /* Color transform code from Adobe marker */ - - boolean CCIR601_sampling; /* TRUE=first samples are cosited */ - - /* Aside from the specific data retained from APPn markers known to the - * library, the uninterpreted contents of any or all APPn and COM markers - * can be saved in a list for examination by the application. - */ - jpeg_saved_marker_ptr marker_list; /* Head of list of saved markers */ - - /* Remaining fields are known throughout decompressor, but generally - * should not be touched by a surrounding application. - */ - - /* - * These fields are computed during decompression startup - */ - int max_h_samp_factor; /* largest h_samp_factor */ - int max_v_samp_factor; /* largest v_samp_factor */ - - int min_DCT_h_scaled_size; /* smallest DCT_h_scaled_size of any component */ - int min_DCT_v_scaled_size; /* smallest DCT_v_scaled_size of any component */ - - JDIMENSION total_iMCU_rows; /* # of iMCU rows in image */ - /* The coefficient controller's input and output progress is measured in - * units of "iMCU" (interleaved MCU) rows. These are the same as MCU rows - * in fully interleaved JPEG scans, but are used whether the scan is - * interleaved or not. We define an iMCU row as v_samp_factor DCT block - * rows of each component. Therefore, the IDCT output contains - * v_samp_factor*DCT_v_scaled_size sample rows of a component per iMCU row. - */ - - JSAMPLE * sample_range_limit; /* table for fast range-limiting */ - - /* - * These fields are valid during any one scan. - * They describe the components and MCUs actually appearing in the scan. - * Note that the decompressor output side must not use these fields. - */ - int comps_in_scan; /* # of JPEG components in this scan */ - jpeg_component_info * cur_comp_info[MAX_COMPS_IN_SCAN]; - /* *cur_comp_info[i] describes component that appears i'th in SOS */ - - JDIMENSION MCUs_per_row; /* # of MCUs across the image */ - JDIMENSION MCU_rows_in_scan; /* # of MCU rows in the image */ - - int blocks_in_MCU; /* # of DCT blocks per MCU */ - int MCU_membership[D_MAX_BLOCKS_IN_MCU]; - /* MCU_membership[i] is index in cur_comp_info of component owning */ - /* i'th block in an MCU */ - - int Ss, Se, Ah, Al; /* progressive JPEG parameters for scan */ - - /* These fields are derived from Se of first SOS marker. - */ - int block_size; /* the basic DCT block size: 1..16 */ - const int * natural_order; /* natural-order position array for entropy decode */ - int lim_Se; /* min( Se, DCTSIZE2-1 ) for entropy decode */ - - /* This field is shared between entropy decoder and marker parser. - * It is either zero or the code of a JPEG marker that has been - * read from the data source, but has not yet been processed. - */ - int unread_marker; - - /* - * Links to decompression subobjects (methods, private variables of modules) - */ - struct jpeg_decomp_master * master; - struct jpeg_d_main_controller * main; - struct jpeg_d_coef_controller * coef; - struct jpeg_d_post_controller * post; - struct jpeg_input_controller * inputctl; - struct jpeg_marker_reader * marker; - struct jpeg_entropy_decoder * entropy; - struct jpeg_inverse_dct * idct; - struct jpeg_upsampler * upsample; - struct jpeg_color_deconverter * cconvert; - struct jpeg_color_quantizer * cquantize; -}; - - -/* "Object" declarations for JPEG modules that may be supplied or called - * directly by the surrounding application. - * As with all objects in the JPEG library, these structs only define the - * publicly visible methods and state variables of a module. Additional - * private fields may exist after the public ones. - */ - - -/* Error handler object */ - -struct jpeg_error_mgr { - /* Error exit handler: does not return to caller */ - JMETHOD(void, error_exit, (j_common_ptr cinfo)); - /* Conditionally emit a trace or warning message */ - JMETHOD(void, emit_message, (j_common_ptr cinfo, int msg_level)); - /* Routine that actually outputs a trace or error message */ - JMETHOD(void, output_message, (j_common_ptr cinfo)); - /* Format a message string for the most recent JPEG error or message */ - JMETHOD(void, format_message, (j_common_ptr cinfo, char * buffer)); -#define JMSG_LENGTH_MAX 200 /* recommended size of format_message buffer */ - /* Reset error state variables at start of a new image */ - JMETHOD(void, reset_error_mgr, (j_common_ptr cinfo)); - - /* The message ID code and any parameters are saved here. - * A message can have one string parameter or up to 8 int parameters. - */ - int msg_code; -#define JMSG_STR_PARM_MAX 80 - union { - int i[8]; - char s[JMSG_STR_PARM_MAX]; - } msg_parm; - - /* Standard state variables for error facility */ - - int trace_level; /* max msg_level that will be displayed */ - - /* For recoverable corrupt-data errors, we emit a warning message, - * but keep going unless emit_message chooses to abort. emit_message - * should count warnings in num_warnings. The surrounding application - * can check for bad data by seeing if num_warnings is nonzero at the - * end of processing. - */ - long num_warnings; /* number of corrupt-data warnings */ - - /* These fields point to the table(s) of error message strings. - * An application can change the table pointer to switch to a different - * message list (typically, to change the language in which errors are - * reported). Some applications may wish to add additional error codes - * that will be handled by the JPEG library error mechanism; the second - * table pointer is used for this purpose. - * - * First table includes all errors generated by JPEG library itself. - * Error code 0 is reserved for a "no such error string" message. - */ - const char * const * jpeg_message_table; /* Library errors */ - int last_jpeg_message; /* Table contains strings 0..last_jpeg_message */ - /* Second table can be added by application (see cjpeg/djpeg for example). - * It contains strings numbered first_addon_message..last_addon_message. - */ - const char * const * addon_message_table; /* Non-library errors */ - int first_addon_message; /* code for first string in addon table */ - int last_addon_message; /* code for last string in addon table */ -}; - - -/* Progress monitor object */ - -struct jpeg_progress_mgr { - JMETHOD(void, progress_monitor, (j_common_ptr cinfo)); - - long pass_counter; /* work units completed in this pass */ - long pass_limit; /* total number of work units in this pass */ - int completed_passes; /* passes completed so far */ - int total_passes; /* total number of passes expected */ -}; - - -/* Data destination object for compression */ - -struct jpeg_destination_mgr { - JOCTET * next_output_byte; /* => next byte to write in buffer */ - size_t free_in_buffer; /* # of byte spaces remaining in buffer */ - - JMETHOD(void, init_destination, (j_compress_ptr cinfo)); - JMETHOD(boolean, empty_output_buffer, (j_compress_ptr cinfo)); - JMETHOD(void, term_destination, (j_compress_ptr cinfo)); -}; - - -/* Data source object for decompression */ - -struct jpeg_source_mgr { - const JOCTET * next_input_byte; /* => next byte to read from buffer */ - size_t bytes_in_buffer; /* # of bytes remaining in buffer */ - - JMETHOD(void, init_source, (j_decompress_ptr cinfo)); - JMETHOD(boolean, fill_input_buffer, (j_decompress_ptr cinfo)); - JMETHOD(void, skip_input_data, (j_decompress_ptr cinfo, long num_bytes)); - JMETHOD(boolean, resync_to_restart, (j_decompress_ptr cinfo, int desired)); - JMETHOD(void, term_source, (j_decompress_ptr cinfo)); -}; - - -/* Memory manager object. - * Allocates "small" objects (a few K total), "large" objects (tens of K), - * and "really big" objects (virtual arrays with backing store if needed). - * The memory manager does not allow individual objects to be freed; rather, - * each created object is assigned to a pool, and whole pools can be freed - * at once. This is faster and more convenient than remembering exactly what - * to free, especially where malloc()/free() are not too speedy. - * NB: alloc routines never return NULL. They exit to error_exit if not - * successful. - */ - -#define JPOOL_PERMANENT 0 /* lasts until master record is destroyed */ -#define JPOOL_IMAGE 1 /* lasts until done with image/datastream */ -#define JPOOL_NUMPOOLS 2 - -typedef struct jvirt_sarray_control * jvirt_sarray_ptr; -typedef struct jvirt_barray_control * jvirt_barray_ptr; - - -struct jpeg_memory_mgr { - /* Method pointers */ - JMETHOD(void *, alloc_small, (j_common_ptr cinfo, int pool_id, - size_t sizeofobject)); - JMETHOD(void FAR *, alloc_large, (j_common_ptr cinfo, int pool_id, - size_t sizeofobject)); - JMETHOD(JSAMPARRAY, alloc_sarray, (j_common_ptr cinfo, int pool_id, - JDIMENSION samplesperrow, - JDIMENSION numrows)); - JMETHOD(JBLOCKARRAY, alloc_barray, (j_common_ptr cinfo, int pool_id, - JDIMENSION blocksperrow, - JDIMENSION numrows)); - JMETHOD(jvirt_sarray_ptr, request_virt_sarray, (j_common_ptr cinfo, - int pool_id, - boolean pre_zero, - JDIMENSION samplesperrow, - JDIMENSION numrows, - JDIMENSION maxaccess)); - JMETHOD(jvirt_barray_ptr, request_virt_barray, (j_common_ptr cinfo, - int pool_id, - boolean pre_zero, - JDIMENSION blocksperrow, - JDIMENSION numrows, - JDIMENSION maxaccess)); - JMETHOD(void, realize_virt_arrays, (j_common_ptr cinfo)); - JMETHOD(JSAMPARRAY, access_virt_sarray, (j_common_ptr cinfo, - jvirt_sarray_ptr ptr, - JDIMENSION start_row, - JDIMENSION num_rows, - boolean writable)); - JMETHOD(JBLOCKARRAY, access_virt_barray, (j_common_ptr cinfo, - jvirt_barray_ptr ptr, - JDIMENSION start_row, - JDIMENSION num_rows, - boolean writable)); - JMETHOD(void, free_pool, (j_common_ptr cinfo, int pool_id)); - JMETHOD(void, self_destruct, (j_common_ptr cinfo)); - - /* Limit on memory allocation for this JPEG object. (Note that this is - * merely advisory, not a guaranteed maximum; it only affects the space - * used for virtual-array buffers.) May be changed by outer application - * after creating the JPEG object. - */ - long max_memory_to_use; - - /* Maximum allocation request accepted by alloc_large. */ - long max_alloc_chunk; -}; - - -/* Routine signature for application-supplied marker processing methods. - * Need not pass marker code since it is stored in cinfo->unread_marker. - */ -typedef JMETHOD(boolean, jpeg_marker_parser_method, (j_decompress_ptr cinfo)); - - -/* Declarations for routines called by application. - * The JPP macro hides prototype parameters from compilers that can't cope. - * Note JPP requires double parentheses. - */ - -#ifdef HAVE_PROTOTYPES -#define JPP(arglist) arglist -#else -#define JPP(arglist) () -#endif - - -/* Short forms of external names for systems with brain-damaged linkers. - * We shorten external names to be unique in the first six letters, which - * is good enough for all known systems. - * (If your compiler itself needs names to be unique in less than 15 - * characters, you are out of luck. Get a better compiler.) - */ - -#ifdef NEED_SHORT_EXTERNAL_NAMES -#define jpeg_std_error jStdError -#define jpeg_CreateCompress jCreaCompress -#define jpeg_CreateDecompress jCreaDecompress -#define jpeg_destroy_compress jDestCompress -#define jpeg_destroy_decompress jDestDecompress -#define jpeg_stdio_dest jStdDest -#define jpeg_stdio_src jStdSrc -#define jpeg_mem_dest jMemDest -#define jpeg_mem_src jMemSrc -#define jpeg_set_defaults jSetDefaults -#define jpeg_set_colorspace jSetColorspace -#define jpeg_default_colorspace jDefColorspace -#define jpeg_set_quality jSetQuality -#define jpeg_set_linear_quality jSetLQuality -#define jpeg_default_qtables jDefQTables -#define jpeg_add_quant_table jAddQuantTable -#define jpeg_quality_scaling jQualityScaling -#define jpeg_simple_progression jSimProgress -#define jpeg_suppress_tables jSuppressTables -#define jpeg_alloc_quant_table jAlcQTable -#define jpeg_alloc_huff_table jAlcHTable -#define jpeg_start_compress jStrtCompress -#define jpeg_write_scanlines jWrtScanlines -#define jpeg_finish_compress jFinCompress -#define jpeg_calc_jpeg_dimensions jCjpegDimensions -#define jpeg_write_raw_data jWrtRawData -#define jpeg_write_marker jWrtMarker -#define jpeg_write_m_header jWrtMHeader -#define jpeg_write_m_byte jWrtMByte -#define jpeg_write_tables jWrtTables -#define jpeg_read_header jReadHeader -#define jpeg_start_decompress jStrtDecompress -#define jpeg_read_scanlines jReadScanlines -#define jpeg_finish_decompress jFinDecompress -#define jpeg_read_raw_data jReadRawData -#define jpeg_has_multiple_scans jHasMultScn -#define jpeg_start_output jStrtOutput -#define jpeg_finish_output jFinOutput -#define jpeg_input_complete jInComplete -#define jpeg_new_colormap jNewCMap -#define jpeg_consume_input jConsumeInput -#define jpeg_core_output_dimensions jCoreDimensions -#define jpeg_calc_output_dimensions jCalcDimensions -#define jpeg_save_markers jSaveMarkers -#define jpeg_set_marker_processor jSetMarker -#define jpeg_read_coefficients jReadCoefs -#define jpeg_write_coefficients jWrtCoefs -#define jpeg_copy_critical_parameters jCopyCrit -#define jpeg_abort_compress jAbrtCompress -#define jpeg_abort_decompress jAbrtDecompress -#define jpeg_abort jAbort -#define jpeg_destroy jDestroy -#define jpeg_resync_to_restart jResyncRestart -#endif /* NEED_SHORT_EXTERNAL_NAMES */ - - -/* Default error-management setup */ -EXTERN(struct jpeg_error_mgr *) jpeg_std_error - JPP((struct jpeg_error_mgr * err)); - -/* Initialization of JPEG compression objects. - * jpeg_create_compress() and jpeg_create_decompress() are the exported - * names that applications should call. These expand to calls on - * jpeg_CreateCompress and jpeg_CreateDecompress with additional information - * passed for version mismatch checking. - * NB: you must set up the error-manager BEFORE calling jpeg_create_xxx. - */ -#define jpeg_create_compress(cinfo) \ - jpeg_CreateCompress((cinfo), JPEG_LIB_VERSION, \ - (size_t) sizeof(struct jpeg_compress_struct)) -#define jpeg_create_decompress(cinfo) \ - jpeg_CreateDecompress((cinfo), JPEG_LIB_VERSION, \ - (size_t) sizeof(struct jpeg_decompress_struct)) -EXTERN(void) jpeg_CreateCompress JPP((j_compress_ptr cinfo, - int version, size_t structsize)); -EXTERN(void) jpeg_CreateDecompress JPP((j_decompress_ptr cinfo, - int version, size_t structsize)); -/* Destruction of JPEG compression objects */ -EXTERN(void) jpeg_destroy_compress JPP((j_compress_ptr cinfo)); -EXTERN(void) jpeg_destroy_decompress JPP((j_decompress_ptr cinfo)); - -/* Standard data source and destination managers: stdio streams. */ -/* Caller is responsible for opening the file before and closing after. */ -EXTERN(void) jpeg_stdio_dest JPP((j_compress_ptr cinfo, FILE * outfile)); -EXTERN(void) jpeg_stdio_src JPP((j_decompress_ptr cinfo, FILE * infile)); - -/* Data source and destination managers: memory buffers. */ -EXTERN(void) jpeg_mem_dest JPP((j_compress_ptr cinfo, - unsigned char ** outbuffer, - unsigned long * outsize)); -EXTERN(void) jpeg_mem_src JPP((j_decompress_ptr cinfo, - unsigned char * inbuffer, - unsigned long insize)); - -/* Default parameter setup for compression */ -EXTERN(void) jpeg_set_defaults JPP((j_compress_ptr cinfo)); -/* Compression parameter setup aids */ -EXTERN(void) jpeg_set_colorspace JPP((j_compress_ptr cinfo, - J_COLOR_SPACE colorspace)); -EXTERN(void) jpeg_default_colorspace JPP((j_compress_ptr cinfo)); -EXTERN(void) jpeg_set_quality JPP((j_compress_ptr cinfo, int quality, - boolean force_baseline)); -EXTERN(void) jpeg_set_linear_quality JPP((j_compress_ptr cinfo, - int scale_factor, - boolean force_baseline)); -EXTERN(void) jpeg_default_qtables JPP((j_compress_ptr cinfo, - boolean force_baseline)); -EXTERN(void) jpeg_add_quant_table JPP((j_compress_ptr cinfo, int which_tbl, - const unsigned int *basic_table, - int scale_factor, - boolean force_baseline)); -EXTERN(int) jpeg_quality_scaling JPP((int quality)); -EXTERN(void) jpeg_simple_progression JPP((j_compress_ptr cinfo)); -EXTERN(void) jpeg_suppress_tables JPP((j_compress_ptr cinfo, - boolean suppress)); -EXTERN(JQUANT_TBL *) jpeg_alloc_quant_table JPP((j_common_ptr cinfo)); -EXTERN(JHUFF_TBL *) jpeg_alloc_huff_table JPP((j_common_ptr cinfo)); - -/* Main entry points for compression */ -EXTERN(void) jpeg_start_compress JPP((j_compress_ptr cinfo, - boolean write_all_tables)); -EXTERN(JDIMENSION) jpeg_write_scanlines JPP((j_compress_ptr cinfo, - JSAMPARRAY scanlines, - JDIMENSION num_lines)); -EXTERN(void) jpeg_finish_compress JPP((j_compress_ptr cinfo)); - -/* Precalculate JPEG dimensions for current compression parameters. */ -EXTERN(void) jpeg_calc_jpeg_dimensions JPP((j_compress_ptr cinfo)); - -/* Replaces jpeg_write_scanlines when writing raw downsampled data. */ -EXTERN(JDIMENSION) jpeg_write_raw_data JPP((j_compress_ptr cinfo, - JSAMPIMAGE data, - JDIMENSION num_lines)); - -/* Write a special marker. See libjpeg.txt concerning safe usage. */ -EXTERN(void) jpeg_write_marker - JPP((j_compress_ptr cinfo, int marker, - const JOCTET * dataptr, unsigned int datalen)); -/* Same, but piecemeal. */ -EXTERN(void) jpeg_write_m_header - JPP((j_compress_ptr cinfo, int marker, unsigned int datalen)); -EXTERN(void) jpeg_write_m_byte - JPP((j_compress_ptr cinfo, int val)); - -/* Alternate compression function: just write an abbreviated table file */ -EXTERN(void) jpeg_write_tables JPP((j_compress_ptr cinfo)); - -/* Decompression startup: read start of JPEG datastream to see what's there */ -EXTERN(int) jpeg_read_header JPP((j_decompress_ptr cinfo, - boolean require_image)); -/* Return value is one of: */ -#define JPEG_SUSPENDED 0 /* Suspended due to lack of input data */ -#define JPEG_HEADER_OK 1 /* Found valid image datastream */ -#define JPEG_HEADER_TABLES_ONLY 2 /* Found valid table-specs-only datastream */ -/* If you pass require_image = TRUE (normal case), you need not check for - * a TABLES_ONLY return code; an abbreviated file will cause an error exit. - * JPEG_SUSPENDED is only possible if you use a data source module that can - * give a suspension return (the stdio source module doesn't). - */ - -/* Main entry points for decompression */ -EXTERN(boolean) jpeg_start_decompress JPP((j_decompress_ptr cinfo)); -EXTERN(JDIMENSION) jpeg_read_scanlines JPP((j_decompress_ptr cinfo, - JSAMPARRAY scanlines, - JDIMENSION max_lines)); -EXTERN(boolean) jpeg_finish_decompress JPP((j_decompress_ptr cinfo)); - -/* Replaces jpeg_read_scanlines when reading raw downsampled data. */ -EXTERN(JDIMENSION) jpeg_read_raw_data JPP((j_decompress_ptr cinfo, - JSAMPIMAGE data, - JDIMENSION max_lines)); - -/* Additional entry points for buffered-image mode. */ -EXTERN(boolean) jpeg_has_multiple_scans JPP((j_decompress_ptr cinfo)); -EXTERN(boolean) jpeg_start_output JPP((j_decompress_ptr cinfo, - int scan_number)); -EXTERN(boolean) jpeg_finish_output JPP((j_decompress_ptr cinfo)); -EXTERN(boolean) jpeg_input_complete JPP((j_decompress_ptr cinfo)); -EXTERN(void) jpeg_new_colormap JPP((j_decompress_ptr cinfo)); -EXTERN(int) jpeg_consume_input JPP((j_decompress_ptr cinfo)); -/* Return value is one of: */ -/* #define JPEG_SUSPENDED 0 Suspended due to lack of input data */ -#define JPEG_REACHED_SOS 1 /* Reached start of new scan */ -#define JPEG_REACHED_EOI 2 /* Reached end of image */ -#define JPEG_ROW_COMPLETED 3 /* Completed one iMCU row */ -#define JPEG_SCAN_COMPLETED 4 /* Completed last iMCU row of a scan */ - -/* Precalculate output dimensions for current decompression parameters. */ -EXTERN(void) jpeg_core_output_dimensions JPP((j_decompress_ptr cinfo)); -EXTERN(void) jpeg_calc_output_dimensions JPP((j_decompress_ptr cinfo)); - -/* Control saving of COM and APPn markers into marker_list. */ -EXTERN(void) jpeg_save_markers - JPP((j_decompress_ptr cinfo, int marker_code, - unsigned int length_limit)); - -/* Install a special processing method for COM or APPn markers. */ -EXTERN(void) jpeg_set_marker_processor - JPP((j_decompress_ptr cinfo, int marker_code, - jpeg_marker_parser_method routine)); - -/* Read or write raw DCT coefficients --- useful for lossless transcoding. */ -EXTERN(jvirt_barray_ptr *) jpeg_read_coefficients JPP((j_decompress_ptr cinfo)); -EXTERN(void) jpeg_write_coefficients JPP((j_compress_ptr cinfo, - jvirt_barray_ptr * coef_arrays)); -EXTERN(void) jpeg_copy_critical_parameters JPP((j_decompress_ptr srcinfo, - j_compress_ptr dstinfo)); - -/* If you choose to abort compression or decompression before completing - * jpeg_finish_(de)compress, then you need to clean up to release memory, - * temporary files, etc. You can just call jpeg_destroy_(de)compress - * if you're done with the JPEG object, but if you want to clean it up and - * reuse it, call this: - */ -EXTERN(void) jpeg_abort_compress JPP((j_compress_ptr cinfo)); -EXTERN(void) jpeg_abort_decompress JPP((j_decompress_ptr cinfo)); - -/* Generic versions of jpeg_abort and jpeg_destroy that work on either - * flavor of JPEG object. These may be more convenient in some places. - */ -EXTERN(void) jpeg_abort JPP((j_common_ptr cinfo)); -EXTERN(void) jpeg_destroy JPP((j_common_ptr cinfo)); - -/* Default restart-marker-resync procedure for use by data source modules */ -EXTERN(boolean) jpeg_resync_to_restart JPP((j_decompress_ptr cinfo, - int desired)); - - -/* These marker codes are exported since applications and data source modules - * are likely to want to use them. - */ - -#define JPEG_RST0 0xD0 /* RST0 marker code */ -#define JPEG_EOI 0xD9 /* EOI marker code */ -#define JPEG_APP0 0xE0 /* APP0 marker code */ -#define JPEG_COM 0xFE /* COM marker code */ - - -/* If we have a brain-damaged compiler that emits warnings (or worse, errors) - * for structure definitions that are never filled in, keep it quiet by - * supplying dummy definitions for the various substructures. - */ - -#ifdef INCOMPLETE_TYPES_BROKEN -#ifndef JPEG_INTERNALS /* will be defined in jpegint.h */ -struct jvirt_sarray_control { long dummy; }; -struct jvirt_barray_control { long dummy; }; -struct jpeg_comp_master { long dummy; }; -struct jpeg_c_main_controller { long dummy; }; -struct jpeg_c_prep_controller { long dummy; }; -struct jpeg_c_coef_controller { long dummy; }; -struct jpeg_marker_writer { long dummy; }; -struct jpeg_color_converter { long dummy; }; -struct jpeg_downsampler { long dummy; }; -struct jpeg_forward_dct { long dummy; }; -struct jpeg_entropy_encoder { long dummy; }; -struct jpeg_decomp_master { long dummy; }; -struct jpeg_d_main_controller { long dummy; }; -struct jpeg_d_coef_controller { long dummy; }; -struct jpeg_d_post_controller { long dummy; }; -struct jpeg_input_controller { long dummy; }; -struct jpeg_marker_reader { long dummy; }; -struct jpeg_entropy_decoder { long dummy; }; -struct jpeg_inverse_dct { long dummy; }; -struct jpeg_upsampler { long dummy; }; -struct jpeg_color_deconverter { long dummy; }; -struct jpeg_color_quantizer { long dummy; }; -#endif /* JPEG_INTERNALS */ -#endif /* INCOMPLETE_TYPES_BROKEN */ - - -/* - * The JPEG library modules define JPEG_INTERNALS before including this file. - * The internal structure declarations are read only when that is true. - * Applications using the library should not include jpegint.h, but may wish - * to include jerror.h. - */ - -#ifdef JPEG_INTERNALS -#include "jpegint.h" /* fetch private declarations */ -#include "jerror.h" /* fetch error codes too */ -#endif - -#ifdef __cplusplus -#ifndef DONT_USE_EXTERN_C -} -#endif -#endif - -#endif /* JPEGLIB_H */ diff --git a/jpg/jpegsr8d.zip b/jpg/jpegsr8d.zip deleted file mode 100644 index 9a12a90..0000000 Binary files a/jpg/jpegsr8d.zip and /dev/null differ diff --git a/jpg/jpegtran.1 b/jpg/jpegtran.1 deleted file mode 100644 index 0ad1bbc..0000000 --- a/jpg/jpegtran.1 +++ /dev/null @@ -1,285 +0,0 @@ -.TH JPEGTRAN 1 "28 December 2009" -.SH NAME -jpegtran \- lossless transformation of JPEG files -.SH SYNOPSIS -.B jpegtran -[ -.I options -] -[ -.I filename -] -.LP -.SH DESCRIPTION -.LP -.B jpegtran -performs various useful transformations of JPEG files. -It can translate the coded representation from one variant of JPEG to another, -for example from baseline JPEG to progressive JPEG or vice versa. It can also -perform some rearrangements of the image data, for example turning an image -from landscape to portrait format by rotation. -.PP -.B jpegtran -works by rearranging the compressed data (DCT coefficients), without -ever fully decoding the image. Therefore, its transformations are lossless: -there is no image degradation at all, which would not be true if you used -.B djpeg -followed by -.B cjpeg -to accomplish the same conversion. But by the same token, -.B jpegtran -cannot perform lossy operations such as changing the image quality. -.PP -.B jpegtran -reads the named JPEG/JFIF file, or the standard input if no file is -named, and produces a JPEG/JFIF file on the standard output. -.SH OPTIONS -All switch names may be abbreviated; for example, -.B \-optimize -may be written -.B \-opt -or -.BR \-o . -Upper and lower case are equivalent. -British spellings are also accepted (e.g., -.BR \-optimise ), -though for brevity these are not mentioned below. -.PP -To specify the coded JPEG representation used in the output file, -.B jpegtran -accepts a subset of the switches recognized by -.BR cjpeg : -.TP -.B \-optimize -Perform optimization of entropy encoding parameters. -.TP -.B \-progressive -Create progressive JPEG file. -.TP -.BI \-restart " N" -Emit a JPEG restart marker every N MCU rows, or every N MCU blocks if "B" is -attached to the number. -.TP -.B \-arithmetic -Use arithmetic coding. -.TP -.BI \-scans " file" -Use the scan script given in the specified text file. -.PP -See -.BR cjpeg (1) -for more details about these switches. -If you specify none of these switches, you get a plain baseline-JPEG output -file. The quality setting and so forth are determined by the input file. -.PP -The image can be losslessly transformed by giving one of these switches: -.TP -.B \-flip horizontal -Mirror image horizontally (left-right). -.TP -.B \-flip vertical -Mirror image vertically (top-bottom). -.TP -.B \-rotate 90 -Rotate image 90 degrees clockwise. -.TP -.B \-rotate 180 -Rotate image 180 degrees. -.TP -.B \-rotate 270 -Rotate image 270 degrees clockwise (or 90 ccw). -.TP -.B \-transpose -Transpose image (across UL-to-LR axis). -.TP -.B \-transverse -Transverse transpose (across UR-to-LL axis). -.IP -The transpose transformation has no restrictions regarding image dimensions. -The other transformations operate rather oddly if the image dimensions are not -a multiple of the iMCU size (usually 8 or 16 pixels), because they can only -transform complete blocks of DCT coefficient data in the desired way. -.IP -.BR jpegtran 's -default behavior when transforming an odd-size image is designed -to preserve exact reversibility and mathematical consistency of the -transformation set. As stated, transpose is able to flip the entire image -area. Horizontal mirroring leaves any partial iMCU column at the right edge -untouched, but is able to flip all rows of the image. Similarly, vertical -mirroring leaves any partial iMCU row at the bottom edge untouched, but is -able to flip all columns. The other transforms can be built up as sequences -of transpose and flip operations; for consistency, their actions on edge -pixels are defined to be the same as the end result of the corresponding -transpose-and-flip sequence. -.IP -For practical use, you may prefer to discard any untransformable edge pixels -rather than having a strange-looking strip along the right and/or bottom edges -of a transformed image. To do this, add the -.B \-trim -switch: -.TP -.B \-trim -Drop non-transformable edge blocks. -.IP -Obviously, a transformation with -.B \-trim -is not reversible, so strictly speaking -.B jpegtran -with this switch is not lossless. Also, the expected mathematical -equivalences between the transformations no longer hold. For example, -.B \-rot 270 -trim -trims only the bottom edge, but -.B \-rot 90 -trim -followed by -.B \-rot 180 -trim -trims both edges. -.IP -If you are only interested in perfect transformation, add the -.B \-perfect -switch: -.TP -.B \-perfect -Fails with an error if the transformation is not perfect. -.IP -For example you may want to do -.IP -.B (jpegtran \-rot 90 -perfect -.I foo.jpg -.B || djpeg -.I foo.jpg -.B | pnmflip \-r90 | cjpeg) -.IP -to do a perfect rotation if available or an approximated one if not. -.PP -We also offer a lossless-crop option, which discards data outside a given -image region but losslessly preserves what is inside. Like the rotate and -flip transforms, lossless crop is restricted by the current JPEG format: the -upper left corner of the selected region must fall on an iMCU boundary. If -this does not hold for the given crop parameters, we silently move the upper -left corner up and/or left to make it so, simultaneously increasing the region -dimensions to keep the lower right crop corner unchanged. (Thus, the output -image covers at least the requested region, but may cover more.) - -The image can be losslessly cropped by giving the switch: -.TP -.B \-crop WxH+X+Y -Crop to a rectangular subarea of width W, height H starting at point X,Y. -.PP -Other not-strictly-lossless transformation switches are: -.TP -.B \-grayscale -Force grayscale output. -.IP -This option discards the chrominance channels if the input image is YCbCr -(ie, a standard color JPEG), resulting in a grayscale JPEG file. The -luminance channel is preserved exactly, so this is a better method of reducing -to grayscale than decompression, conversion, and recompression. This switch -is particularly handy for fixing a monochrome picture that was mistakenly -encoded as a color JPEG. (In such a case, the space savings from getting rid -of the near-empty chroma channels won't be large; but the decoding time for -a grayscale JPEG is substantially less than that for a color JPEG.) -.TP -.BI \-scale " M/N" -Scale the output image by a factor M/N. -.IP -Currently supported scale factors are M/N with all M from 1 to 16, where N is -the source DCT size, which is 8 for baseline JPEG. If the /N part is omitted, -then M specifies the DCT scaled size to be applied on the given input. For -baseline JPEG this is equivalent to M/8 scaling, since the source DCT size -for baseline JPEG is 8. -.B Caution: -An implementation of the JPEG SmartScale extension is required for this -feature. SmartScale enabled JPEG is not yet widely implemented, so many -decoders will be unable to view a SmartScale extended JPEG file at all. -.PP -.B jpegtran -also recognizes these switches that control what to do with "extra" markers, -such as comment blocks: -.TP -.B \-copy none -Copy no extra markers from source file. This setting suppresses all -comments and other excess baggage present in the source file. -.TP -.B \-copy comments -Copy only comment markers. This setting copies comments from the source file, -but discards any other inessential (for image display) data. -.TP -.B \-copy all -Copy all extra markers. This setting preserves miscellaneous markers -found in the source file, such as JFIF thumbnails, Exif data, and Photoshop -settings. In some files these extra markers can be sizable. -.IP -The default behavior is -.BR "\-copy comments" . -(Note: in IJG releases v6 and v6a, -.B jpegtran -always did the equivalent of -.BR "\-copy none" .) -.PP -Additional switches recognized by jpegtran are: -.TP -.BI \-maxmemory " N" -Set limit for amount of memory to use in processing large images. Value is -in thousands of bytes, or millions of bytes if "M" is attached to the -number. For example, -.B \-max 4m -selects 4000000 bytes. If more space is needed, temporary files will be used. -.TP -.BI \-outfile " name" -Send output image to the named file, not to standard output. -.TP -.B \-verbose -Enable debug printout. More -.BR \-v 's -give more output. Also, version information is printed at startup. -.TP -.B \-debug -Same as -.BR \-verbose . -.SH EXAMPLES -.LP -This example converts a baseline JPEG file to progressive form: -.IP -.B jpegtran \-progressive -.I foo.jpg -.B > -.I fooprog.jpg -.PP -This example rotates an image 90 degrees clockwise, discarding any -unrotatable edge pixels: -.IP -.B jpegtran \-rot 90 -trim -.I foo.jpg -.B > -.I foo90.jpg -.SH ENVIRONMENT -.TP -.B JPEGMEM -If this environment variable is set, its value is the default memory limit. -The value is specified as described for the -.B \-maxmemory -switch. -.B JPEGMEM -overrides the default value specified when the program was compiled, and -itself is overridden by an explicit -.BR \-maxmemory . -.SH SEE ALSO -.BR cjpeg (1), -.BR djpeg (1), -.BR rdjpgcom (1), -.BR wrjpgcom (1) -.br -Wallace, Gregory K. "The JPEG Still Picture Compression Standard", -Communications of the ACM, April 1991 (vol. 34, no. 4), pp. 30-44. -.SH AUTHOR -Independent JPEG Group -.SH BUGS -The transform options can't transform odd-size images perfectly. Use -.B \-trim -or -.B \-perfect -if you don't like the results. -.PP -The entire image is read into memory and then written out again, even in -cases where this isn't really necessary. Expect swapping on large images, -especially when using the more complex transform options. diff --git a/jpg/jpegtran.c b/jpg/jpegtran.c deleted file mode 100644 index e539e91..0000000 --- a/jpg/jpegtran.c +++ /dev/null @@ -1,560 +0,0 @@ -/* - * jpegtran.c - * - * Copyright (C) 1995-2011, Thomas G. Lane, Guido Vollbeding. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file contains a command-line user interface for JPEG transcoding. - * It is very similar to cjpeg.c, and partly to djpeg.c, but provides - * lossless transcoding between different JPEG file formats. It also - * provides some lossless and sort-of-lossless transformations of JPEG data. - */ - -#include "cdjpeg.h" /* Common decls for cjpeg/djpeg applications */ -#include "transupp.h" /* Support routines for jpegtran */ -#include "jversion.h" /* for version message */ - -#ifdef USE_CCOMMAND /* command-line reader for Macintosh */ -#ifdef __MWERKS__ -#include /* Metrowerks needs this */ -#include /* ... and this */ -#endif -#ifdef THINK_C -#include /* Think declares it here */ -#endif -#endif - - -/* - * Argument-parsing code. - * The switch parser is designed to be useful with DOS-style command line - * syntax, ie, intermixed switches and file names, where only the switches - * to the left of a given file name affect processing of that file. - * The main program in this file doesn't actually use this capability... - */ - - -static const char * progname; /* program name for error messages */ -static char * outfilename; /* for -outfile switch */ -static char * scaleoption; /* -scale switch */ -static JCOPY_OPTION copyoption; /* -copy switch */ -static jpeg_transform_info transformoption; /* image transformation options */ - - -LOCAL(void) -usage (void) -/* complain about bad command line */ -{ - fprintf(stderr, "usage: %s [switches] ", progname); -#ifdef TWO_FILE_COMMANDLINE - fprintf(stderr, "inputfile outputfile\n"); -#else - fprintf(stderr, "[inputfile]\n"); -#endif - - fprintf(stderr, "Switches (names may be abbreviated):\n"); - fprintf(stderr, " -copy none Copy no extra markers from source file\n"); - fprintf(stderr, " -copy comments Copy only comment markers (default)\n"); - fprintf(stderr, " -copy all Copy all extra markers\n"); -#ifdef ENTROPY_OPT_SUPPORTED - fprintf(stderr, " -optimize Optimize Huffman table (smaller file, but slow compression)\n"); -#endif -#ifdef C_PROGRESSIVE_SUPPORTED - fprintf(stderr, " -progressive Create progressive JPEG file\n"); -#endif - fprintf(stderr, "Switches for modifying the image:\n"); -#if TRANSFORMS_SUPPORTED - fprintf(stderr, " -crop WxH+X+Y Crop to a rectangular subarea\n"); - fprintf(stderr, " -grayscale Reduce to grayscale (omit color data)\n"); - fprintf(stderr, " -flip [horizontal|vertical] Mirror image (left-right or top-bottom)\n"); - fprintf(stderr, " -perfect Fail if there is non-transformable edge blocks\n"); - fprintf(stderr, " -rotate [90|180|270] Rotate image (degrees clockwise)\n"); -#endif - fprintf(stderr, " -scale M/N Scale output image by fraction M/N, eg, 1/8\n"); -#if TRANSFORMS_SUPPORTED - fprintf(stderr, " -transpose Transpose image\n"); - fprintf(stderr, " -transverse Transverse transpose image\n"); - fprintf(stderr, " -trim Drop non-transformable edge blocks\n"); -#endif - fprintf(stderr, "Switches for advanced users:\n"); -#ifdef C_ARITH_CODING_SUPPORTED - fprintf(stderr, " -arithmetic Use arithmetic coding\n"); -#endif - fprintf(stderr, " -restart N Set restart interval in rows, or in blocks with B\n"); - fprintf(stderr, " -maxmemory N Maximum memory to use (in kbytes)\n"); - fprintf(stderr, " -outfile name Specify name for output file\n"); - fprintf(stderr, " -verbose or -debug Emit debug output\n"); - fprintf(stderr, "Switches for wizards:\n"); -#ifdef C_MULTISCAN_FILES_SUPPORTED - fprintf(stderr, " -scans file Create multi-scan JPEG per script file\n"); -#endif - exit(EXIT_FAILURE); -} - - -LOCAL(void) -select_transform (JXFORM_CODE transform) -/* Silly little routine to detect multiple transform options, - * which we can't handle. - */ -{ -#if TRANSFORMS_SUPPORTED - if (transformoption.transform == JXFORM_NONE || - transformoption.transform == transform) { - transformoption.transform = transform; - } else { - fprintf(stderr, "%s: can only do one image transformation at a time\n", - progname); - usage(); - } -#else - fprintf(stderr, "%s: sorry, image transformation was not compiled\n", - progname); - exit(EXIT_FAILURE); -#endif -} - - -LOCAL(int) -parse_switches (j_compress_ptr cinfo, int argc, char **argv, - int last_file_arg_seen, boolean for_real) -/* Parse optional switches. - * Returns argv[] index of first file-name argument (== argc if none). - * Any file names with indexes <= last_file_arg_seen are ignored; - * they have presumably been processed in a previous iteration. - * (Pass 0 for last_file_arg_seen on the first or only iteration.) - * for_real is FALSE on the first (dummy) pass; we may skip any expensive - * processing. - */ -{ - int argn; - char * arg; - boolean simple_progressive; - char * scansarg = NULL; /* saves -scans parm if any */ - - /* Set up default JPEG parameters. */ - simple_progressive = FALSE; - outfilename = NULL; - scaleoption = NULL; - copyoption = JCOPYOPT_DEFAULT; - transformoption.transform = JXFORM_NONE; - transformoption.perfect = FALSE; - transformoption.trim = FALSE; - transformoption.force_grayscale = FALSE; - transformoption.crop = FALSE; - cinfo->err->trace_level = 0; - - /* Scan command line options, adjust parameters */ - - for (argn = 1; argn < argc; argn++) { - arg = argv[argn]; - if (*arg != '-') { - /* Not a switch, must be a file name argument */ - if (argn <= last_file_arg_seen) { - outfilename = NULL; /* -outfile applies to just one input file */ - continue; /* ignore this name if previously processed */ - } - break; /* else done parsing switches */ - } - arg++; /* advance past switch marker character */ - - if (keymatch(arg, "arithmetic", 1)) { - /* Use arithmetic coding. */ -#ifdef C_ARITH_CODING_SUPPORTED - cinfo->arith_code = TRUE; -#else - fprintf(stderr, "%s: sorry, arithmetic coding not supported\n", - progname); - exit(EXIT_FAILURE); -#endif - - } else if (keymatch(arg, "copy", 2)) { - /* Select which extra markers to copy. */ - if (++argn >= argc) /* advance to next argument */ - usage(); - if (keymatch(argv[argn], "none", 1)) { - copyoption = JCOPYOPT_NONE; - } else if (keymatch(argv[argn], "comments", 1)) { - copyoption = JCOPYOPT_COMMENTS; - } else if (keymatch(argv[argn], "all", 1)) { - copyoption = JCOPYOPT_ALL; - } else - usage(); - - } else if (keymatch(arg, "crop", 2)) { - /* Perform lossless cropping. */ -#if TRANSFORMS_SUPPORTED - if (++argn >= argc) /* advance to next argument */ - usage(); - if (! jtransform_parse_crop_spec(&transformoption, argv[argn])) { - fprintf(stderr, "%s: bogus -crop argument '%s'\n", - progname, argv[argn]); - exit(EXIT_FAILURE); - } -#else - select_transform(JXFORM_NONE); /* force an error */ -#endif - - } else if (keymatch(arg, "debug", 1) || keymatch(arg, "verbose", 1)) { - /* Enable debug printouts. */ - /* On first -d, print version identification */ - static boolean printed_version = FALSE; - - if (! printed_version) { - fprintf(stderr, "Independent JPEG Group's JPEGTRAN, version %s\n%s\n", - JVERSION, JCOPYRIGHT); - printed_version = TRUE; - } - cinfo->err->trace_level++; - - } else if (keymatch(arg, "flip", 1)) { - /* Mirror left-right or top-bottom. */ - if (++argn >= argc) /* advance to next argument */ - usage(); - if (keymatch(argv[argn], "horizontal", 1)) - select_transform(JXFORM_FLIP_H); - else if (keymatch(argv[argn], "vertical", 1)) - select_transform(JXFORM_FLIP_V); - else - usage(); - - } else if (keymatch(arg, "grayscale", 1) || keymatch(arg, "greyscale",1)) { - /* Force to grayscale. */ -#if TRANSFORMS_SUPPORTED - transformoption.force_grayscale = TRUE; -#else - select_transform(JXFORM_NONE); /* force an error */ -#endif - - } else if (keymatch(arg, "maxmemory", 3)) { - /* Maximum memory in Kb (or Mb with 'm'). */ - long lval; - char ch = 'x'; - - if (++argn >= argc) /* advance to next argument */ - usage(); - if (sscanf(argv[argn], "%ld%c", &lval, &ch) < 1) - usage(); - if (ch == 'm' || ch == 'M') - lval *= 1000L; - cinfo->mem->max_memory_to_use = lval * 1000L; - - } else if (keymatch(arg, "optimize", 1) || keymatch(arg, "optimise", 1)) { - /* Enable entropy parm optimization. */ -#ifdef ENTROPY_OPT_SUPPORTED - cinfo->optimize_coding = TRUE; -#else - fprintf(stderr, "%s: sorry, entropy optimization was not compiled\n", - progname); - exit(EXIT_FAILURE); -#endif - - } else if (keymatch(arg, "outfile", 4)) { - /* Set output file name. */ - if (++argn >= argc) /* advance to next argument */ - usage(); - outfilename = argv[argn]; /* save it away for later use */ - - } else if (keymatch(arg, "perfect", 2)) { - /* Fail if there is any partial edge MCUs that the transform can't - * handle. */ - transformoption.perfect = TRUE; - - } else if (keymatch(arg, "progressive", 2)) { - /* Select simple progressive mode. */ -#ifdef C_PROGRESSIVE_SUPPORTED - simple_progressive = TRUE; - /* We must postpone execution until num_components is known. */ -#else - fprintf(stderr, "%s: sorry, progressive output was not compiled\n", - progname); - exit(EXIT_FAILURE); -#endif - - } else if (keymatch(arg, "restart", 1)) { - /* Restart interval in MCU rows (or in MCUs with 'b'). */ - long lval; - char ch = 'x'; - - if (++argn >= argc) /* advance to next argument */ - usage(); - if (sscanf(argv[argn], "%ld%c", &lval, &ch) < 1) - usage(); - if (lval < 0 || lval > 65535L) - usage(); - if (ch == 'b' || ch == 'B') { - cinfo->restart_interval = (unsigned int) lval; - cinfo->restart_in_rows = 0; /* else prior '-restart n' overrides me */ - } else { - cinfo->restart_in_rows = (int) lval; - /* restart_interval will be computed during startup */ - } - - } else if (keymatch(arg, "rotate", 2)) { - /* Rotate 90, 180, or 270 degrees (measured clockwise). */ - if (++argn >= argc) /* advance to next argument */ - usage(); - if (keymatch(argv[argn], "90", 2)) - select_transform(JXFORM_ROT_90); - else if (keymatch(argv[argn], "180", 3)) - select_transform(JXFORM_ROT_180); - else if (keymatch(argv[argn], "270", 3)) - select_transform(JXFORM_ROT_270); - else - usage(); - - } else if (keymatch(arg, "scale", 4)) { - /* Scale the output image by a fraction M/N. */ - if (++argn >= argc) /* advance to next argument */ - usage(); - scaleoption = argv[argn]; - /* We must postpone processing until decompression startup. */ - - } else if (keymatch(arg, "scans", 1)) { - /* Set scan script. */ -#ifdef C_MULTISCAN_FILES_SUPPORTED - if (++argn >= argc) /* advance to next argument */ - usage(); - scansarg = argv[argn]; - /* We must postpone reading the file in case -progressive appears. */ -#else - fprintf(stderr, "%s: sorry, multi-scan output was not compiled\n", - progname); - exit(EXIT_FAILURE); -#endif - - } else if (keymatch(arg, "transpose", 1)) { - /* Transpose (across UL-to-LR axis). */ - select_transform(JXFORM_TRANSPOSE); - - } else if (keymatch(arg, "transverse", 6)) { - /* Transverse transpose (across UR-to-LL axis). */ - select_transform(JXFORM_TRANSVERSE); - - } else if (keymatch(arg, "trim", 3)) { - /* Trim off any partial edge MCUs that the transform can't handle. */ - transformoption.trim = TRUE; - - } else { - usage(); /* bogus switch */ - } - } - - /* Post-switch-scanning cleanup */ - - if (for_real) { - -#ifdef C_PROGRESSIVE_SUPPORTED - if (simple_progressive) /* process -progressive; -scans can override */ - jpeg_simple_progression(cinfo); -#endif - -#ifdef C_MULTISCAN_FILES_SUPPORTED - if (scansarg != NULL) /* process -scans if it was present */ - if (! read_scan_script(cinfo, scansarg)) - usage(); -#endif - } - - return argn; /* return index of next arg (file name) */ -} - - -/* - * The main program. - */ - -int -main (int argc, char **argv) -{ - struct jpeg_decompress_struct srcinfo; - struct jpeg_compress_struct dstinfo; - struct jpeg_error_mgr jsrcerr, jdsterr; -#ifdef PROGRESS_REPORT - struct cdjpeg_progress_mgr progress; -#endif - jvirt_barray_ptr * src_coef_arrays; - jvirt_barray_ptr * dst_coef_arrays; - int file_index; - /* We assume all-in-memory processing and can therefore use only a - * single file pointer for sequential input and output operation. - */ - FILE * fp; - - /* On Mac, fetch a command line. */ -#ifdef USE_CCOMMAND - argc = ccommand(&argv); -#endif - - progname = argv[0]; - if (progname == NULL || progname[0] == 0) - progname = "jpegtran"; /* in case C library doesn't provide it */ - - /* Initialize the JPEG decompression object with default error handling. */ - srcinfo.err = jpeg_std_error(&jsrcerr); - jpeg_create_decompress(&srcinfo); - /* Initialize the JPEG compression object with default error handling. */ - dstinfo.err = jpeg_std_error(&jdsterr); - jpeg_create_compress(&dstinfo); - - /* Now safe to enable signal catcher. - * Note: we assume only the decompression object will have virtual arrays. - */ -#ifdef NEED_SIGNAL_CATCHER - enable_signal_catcher((j_common_ptr) &srcinfo); -#endif - - /* Scan command line to find file names. - * It is convenient to use just one switch-parsing routine, but the switch - * values read here are mostly ignored; we will rescan the switches after - * opening the input file. Also note that most of the switches affect the - * destination JPEG object, so we parse into that and then copy over what - * needs to affects the source too. - */ - - file_index = parse_switches(&dstinfo, argc, argv, 0, FALSE); - jsrcerr.trace_level = jdsterr.trace_level; - srcinfo.mem->max_memory_to_use = dstinfo.mem->max_memory_to_use; - -#ifdef TWO_FILE_COMMANDLINE - /* Must have either -outfile switch or explicit output file name */ - if (outfilename == NULL) { - if (file_index != argc-2) { - fprintf(stderr, "%s: must name one input and one output file\n", - progname); - usage(); - } - outfilename = argv[file_index+1]; - } else { - if (file_index != argc-1) { - fprintf(stderr, "%s: must name one input and one output file\n", - progname); - usage(); - } - } -#else - /* Unix style: expect zero or one file name */ - if (file_index < argc-1) { - fprintf(stderr, "%s: only one input file\n", progname); - usage(); - } -#endif /* TWO_FILE_COMMANDLINE */ - - /* Open the input file. */ - if (file_index < argc) { - if ((fp = fopen(argv[file_index], READ_BINARY)) == NULL) { - fprintf(stderr, "%s: can't open %s for reading\n", progname, argv[file_index]); - exit(EXIT_FAILURE); - } - } else { - /* default input file is stdin */ - fp = read_stdin(); - } - -#ifdef PROGRESS_REPORT - start_progress_monitor((j_common_ptr) &dstinfo, &progress); -#endif - - /* Specify data source for decompression */ - jpeg_stdio_src(&srcinfo, fp); - - /* Enable saving of extra markers that we want to copy */ - jcopy_markers_setup(&srcinfo, copyoption); - - /* Read file header */ - (void) jpeg_read_header(&srcinfo, TRUE); - - /* Adjust default decompression parameters */ - if (scaleoption != NULL) - if (sscanf(scaleoption, "%d/%d", - &srcinfo.scale_num, &srcinfo.scale_denom) < 1) - usage(); - - /* Any space needed by a transform option must be requested before - * jpeg_read_coefficients so that memory allocation will be done right. - */ -#if TRANSFORMS_SUPPORTED - /* Fail right away if -perfect is given and transformation is not perfect. - */ - if (!jtransform_request_workspace(&srcinfo, &transformoption)) { - fprintf(stderr, "%s: transformation is not perfect\n", progname); - exit(EXIT_FAILURE); - } -#endif - - /* Read source file as DCT coefficients */ - src_coef_arrays = jpeg_read_coefficients(&srcinfo); - - /* Initialize destination compression parameters from source values */ - jpeg_copy_critical_parameters(&srcinfo, &dstinfo); - - /* Adjust destination parameters if required by transform options; - * also find out which set of coefficient arrays will hold the output. - */ -#if TRANSFORMS_SUPPORTED - dst_coef_arrays = jtransform_adjust_parameters(&srcinfo, &dstinfo, - src_coef_arrays, - &transformoption); -#else - dst_coef_arrays = src_coef_arrays; -#endif - - /* Close input file, if we opened it. - * Note: we assume that jpeg_read_coefficients consumed all input - * until JPEG_REACHED_EOI, and that jpeg_finish_decompress will - * only consume more while (! cinfo->inputctl->eoi_reached). - * We cannot call jpeg_finish_decompress here since we still need the - * virtual arrays allocated from the source object for processing. - */ - if (fp != stdin) - fclose(fp); - - /* Open the output file. */ - if (outfilename != NULL) { - if ((fp = fopen(outfilename, WRITE_BINARY)) == NULL) { - fprintf(stderr, "%s: can't open %s for writing\n", progname, outfilename); - exit(EXIT_FAILURE); - } - } else { - /* default output file is stdout */ - fp = write_stdout(); - } - - /* Adjust default compression parameters by re-parsing the options */ - file_index = parse_switches(&dstinfo, argc, argv, 0, TRUE); - - /* Specify data destination for compression */ - jpeg_stdio_dest(&dstinfo, fp); - - /* Start compressor (note no image data is actually written here) */ - jpeg_write_coefficients(&dstinfo, dst_coef_arrays); - - /* Copy to the output file any extra markers that we want to preserve */ - jcopy_markers_execute(&srcinfo, &dstinfo, copyoption); - - /* Execute image transformation, if any */ -#if TRANSFORMS_SUPPORTED - jtransform_execute_transformation(&srcinfo, &dstinfo, - src_coef_arrays, - &transformoption); -#endif - - /* Finish compression and release memory */ - jpeg_finish_compress(&dstinfo); - jpeg_destroy_compress(&dstinfo); - (void) jpeg_finish_decompress(&srcinfo); - jpeg_destroy_decompress(&srcinfo); - - /* Close output file, if we opened it */ - if (fp != stdout) - fclose(fp); - -#ifdef PROGRESS_REPORT - end_progress_monitor((j_common_ptr) &dstinfo); -#endif - - /* All done. */ - exit(jsrcerr.num_warnings + jdsterr.num_warnings ?EXIT_WARNING:EXIT_SUCCESS); - return 0; /* suppress no-return-value warnings */ -} diff --git a/jpg/jquant1.c b/jpg/jquant1.c deleted file mode 100644 index 9d11f70..0000000 --- a/jpg/jquant1.c +++ /dev/null @@ -1,857 +0,0 @@ -/* - * jquant1.c - * - * Copyright (C) 1991-1996, Thomas G. Lane. - * Modified 2011 by Guido Vollbeding. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file contains 1-pass color quantization (color mapping) routines. - * These routines provide mapping to a fixed color map using equally spaced - * color values. Optional Floyd-Steinberg or ordered dithering is available. - */ - -#define JPEG_INTERNALS -#include "jinclude.h" -#include "jpeglib.h" - -#ifdef QUANT_1PASS_SUPPORTED - - -/* - * The main purpose of 1-pass quantization is to provide a fast, if not very - * high quality, colormapped output capability. A 2-pass quantizer usually - * gives better visual quality; however, for quantized grayscale output this - * quantizer is perfectly adequate. Dithering is highly recommended with this - * quantizer, though you can turn it off if you really want to. - * - * In 1-pass quantization the colormap must be chosen in advance of seeing the - * image. We use a map consisting of all combinations of Ncolors[i] color - * values for the i'th component. The Ncolors[] values are chosen so that - * their product, the total number of colors, is no more than that requested. - * (In most cases, the product will be somewhat less.) - * - * Since the colormap is orthogonal, the representative value for each color - * component can be determined without considering the other components; - * then these indexes can be combined into a colormap index by a standard - * N-dimensional-array-subscript calculation. Most of the arithmetic involved - * can be precalculated and stored in the lookup table colorindex[]. - * colorindex[i][j] maps pixel value j in component i to the nearest - * representative value (grid plane) for that component; this index is - * multiplied by the array stride for component i, so that the - * index of the colormap entry closest to a given pixel value is just - * sum( colorindex[component-number][pixel-component-value] ) - * Aside from being fast, this scheme allows for variable spacing between - * representative values with no additional lookup cost. - * - * If gamma correction has been applied in color conversion, it might be wise - * to adjust the color grid spacing so that the representative colors are - * equidistant in linear space. At this writing, gamma correction is not - * implemented by jdcolor, so nothing is done here. - */ - - -/* Declarations for ordered dithering. - * - * We use a standard 16x16 ordered dither array. The basic concept of ordered - * dithering is described in many references, for instance Dale Schumacher's - * chapter II.2 of Graphics Gems II (James Arvo, ed. Academic Press, 1991). - * In place of Schumacher's comparisons against a "threshold" value, we add a - * "dither" value to the input pixel and then round the result to the nearest - * output value. The dither value is equivalent to (0.5 - threshold) times - * the distance between output values. For ordered dithering, we assume that - * the output colors are equally spaced; if not, results will probably be - * worse, since the dither may be too much or too little at a given point. - * - * The normal calculation would be to form pixel value + dither, range-limit - * this to 0..MAXJSAMPLE, and then index into the colorindex table as usual. - * We can skip the separate range-limiting step by extending the colorindex - * table in both directions. - */ - -#define ODITHER_SIZE 16 /* dimension of dither matrix */ -/* NB: if ODITHER_SIZE is not a power of 2, ODITHER_MASK uses will break */ -#define ODITHER_CELLS (ODITHER_SIZE*ODITHER_SIZE) /* # cells in matrix */ -#define ODITHER_MASK (ODITHER_SIZE-1) /* mask for wrapping around counters */ - -typedef int ODITHER_MATRIX[ODITHER_SIZE][ODITHER_SIZE]; -typedef int (*ODITHER_MATRIX_PTR)[ODITHER_SIZE]; - -static const UINT8 base_dither_matrix[ODITHER_SIZE][ODITHER_SIZE] = { - /* Bayer's order-4 dither array. Generated by the code given in - * Stephen Hawley's article "Ordered Dithering" in Graphics Gems I. - * The values in this array must range from 0 to ODITHER_CELLS-1. - */ - { 0,192, 48,240, 12,204, 60,252, 3,195, 51,243, 15,207, 63,255 }, - { 128, 64,176,112,140, 76,188,124,131, 67,179,115,143, 79,191,127 }, - { 32,224, 16,208, 44,236, 28,220, 35,227, 19,211, 47,239, 31,223 }, - { 160, 96,144, 80,172,108,156, 92,163, 99,147, 83,175,111,159, 95 }, - { 8,200, 56,248, 4,196, 52,244, 11,203, 59,251, 7,199, 55,247 }, - { 136, 72,184,120,132, 68,180,116,139, 75,187,123,135, 71,183,119 }, - { 40,232, 24,216, 36,228, 20,212, 43,235, 27,219, 39,231, 23,215 }, - { 168,104,152, 88,164,100,148, 84,171,107,155, 91,167,103,151, 87 }, - { 2,194, 50,242, 14,206, 62,254, 1,193, 49,241, 13,205, 61,253 }, - { 130, 66,178,114,142, 78,190,126,129, 65,177,113,141, 77,189,125 }, - { 34,226, 18,210, 46,238, 30,222, 33,225, 17,209, 45,237, 29,221 }, - { 162, 98,146, 82,174,110,158, 94,161, 97,145, 81,173,109,157, 93 }, - { 10,202, 58,250, 6,198, 54,246, 9,201, 57,249, 5,197, 53,245 }, - { 138, 74,186,122,134, 70,182,118,137, 73,185,121,133, 69,181,117 }, - { 42,234, 26,218, 38,230, 22,214, 41,233, 25,217, 37,229, 21,213 }, - { 170,106,154, 90,166,102,150, 86,169,105,153, 89,165,101,149, 85 } -}; - - -/* Declarations for Floyd-Steinberg dithering. - * - * Errors are accumulated into the array fserrors[], at a resolution of - * 1/16th of a pixel count. The error at a given pixel is propagated - * to its not-yet-processed neighbors using the standard F-S fractions, - * ... (here) 7/16 - * 3/16 5/16 1/16 - * We work left-to-right on even rows, right-to-left on odd rows. - * - * We can get away with a single array (holding one row's worth of errors) - * by using it to store the current row's errors at pixel columns not yet - * processed, but the next row's errors at columns already processed. We - * need only a few extra variables to hold the errors immediately around the - * current column. (If we are lucky, those variables are in registers, but - * even if not, they're probably cheaper to access than array elements are.) - * - * The fserrors[] array is indexed [component#][position]. - * We provide (#columns + 2) entries per component; the extra entry at each - * end saves us from special-casing the first and last pixels. - * - * Note: on a wide image, we might not have enough room in a PC's near data - * segment to hold the error array; so it is allocated with alloc_large. - */ - -#if BITS_IN_JSAMPLE == 8 -typedef INT16 FSERROR; /* 16 bits should be enough */ -typedef int LOCFSERROR; /* use 'int' for calculation temps */ -#else -typedef INT32 FSERROR; /* may need more than 16 bits */ -typedef INT32 LOCFSERROR; /* be sure calculation temps are big enough */ -#endif - -typedef FSERROR FAR *FSERRPTR; /* pointer to error array (in FAR storage!) */ - - -/* Private subobject */ - -#define MAX_Q_COMPS 4 /* max components I can handle */ - -typedef struct { - struct jpeg_color_quantizer pub; /* public fields */ - - /* Initially allocated colormap is saved here */ - JSAMPARRAY sv_colormap; /* The color map as a 2-D pixel array */ - int sv_actual; /* number of entries in use */ - - JSAMPARRAY colorindex; /* Precomputed mapping for speed */ - /* colorindex[i][j] = index of color closest to pixel value j in component i, - * premultiplied as described above. Since colormap indexes must fit into - * JSAMPLEs, the entries of this array will too. - */ - boolean is_padded; /* is the colorindex padded for odither? */ - - int Ncolors[MAX_Q_COMPS]; /* # of values alloced to each component */ - - /* Variables for ordered dithering */ - int row_index; /* cur row's vertical index in dither matrix */ - ODITHER_MATRIX_PTR odither[MAX_Q_COMPS]; /* one dither array per component */ - - /* Variables for Floyd-Steinberg dithering */ - FSERRPTR fserrors[MAX_Q_COMPS]; /* accumulated errors */ - boolean on_odd_row; /* flag to remember which row we are on */ -} my_cquantizer; - -typedef my_cquantizer * my_cquantize_ptr; - - -/* - * Policy-making subroutines for create_colormap and create_colorindex. - * These routines determine the colormap to be used. The rest of the module - * only assumes that the colormap is orthogonal. - * - * * select_ncolors decides how to divvy up the available colors - * among the components. - * * output_value defines the set of representative values for a component. - * * largest_input_value defines the mapping from input values to - * representative values for a component. - * Note that the latter two routines may impose different policies for - * different components, though this is not currently done. - */ - - -LOCAL(int) -select_ncolors (j_decompress_ptr cinfo, int Ncolors[]) -/* Determine allocation of desired colors to components, */ -/* and fill in Ncolors[] array to indicate choice. */ -/* Return value is total number of colors (product of Ncolors[] values). */ -{ - int nc = cinfo->out_color_components; /* number of color components */ - int max_colors = cinfo->desired_number_of_colors; - int total_colors, iroot, i, j; - boolean changed; - long temp; - static const int RGB_order[3] = { RGB_GREEN, RGB_RED, RGB_BLUE }; - - /* We can allocate at least the nc'th root of max_colors per component. */ - /* Compute floor(nc'th root of max_colors). */ - iroot = 1; - do { - iroot++; - temp = iroot; /* set temp = iroot ** nc */ - for (i = 1; i < nc; i++) - temp *= iroot; - } while (temp <= (long) max_colors); /* repeat till iroot exceeds root */ - iroot--; /* now iroot = floor(root) */ - - /* Must have at least 2 color values per component */ - if (iroot < 2) - ERREXIT1(cinfo, JERR_QUANT_FEW_COLORS, (int) temp); - - /* Initialize to iroot color values for each component */ - total_colors = 1; - for (i = 0; i < nc; i++) { - Ncolors[i] = iroot; - total_colors *= iroot; - } - /* We may be able to increment the count for one or more components without - * exceeding max_colors, though we know not all can be incremented. - * Sometimes, the first component can be incremented more than once! - * (Example: for 16 colors, we start at 2*2*2, go to 3*2*2, then 4*2*2.) - * In RGB colorspace, try to increment G first, then R, then B. - */ - do { - changed = FALSE; - for (i = 0; i < nc; i++) { - j = (cinfo->out_color_space == JCS_RGB ? RGB_order[i] : i); - /* calculate new total_colors if Ncolors[j] is incremented */ - temp = total_colors / Ncolors[j]; - temp *= Ncolors[j]+1; /* done in long arith to avoid oflo */ - if (temp > (long) max_colors) - break; /* won't fit, done with this pass */ - Ncolors[j]++; /* OK, apply the increment */ - total_colors = (int) temp; - changed = TRUE; - } - } while (changed); - - return total_colors; -} - - -LOCAL(int) -output_value (j_decompress_ptr cinfo, int ci, int j, int maxj) -/* Return j'th output value, where j will range from 0 to maxj */ -/* The output values must fall in 0..MAXJSAMPLE in increasing order */ -{ - /* We always provide values 0 and MAXJSAMPLE for each component; - * any additional values are equally spaced between these limits. - * (Forcing the upper and lower values to the limits ensures that - * dithering can't produce a color outside the selected gamut.) - */ - return (int) (((INT32) j * MAXJSAMPLE + maxj/2) / maxj); -} - - -LOCAL(int) -largest_input_value (j_decompress_ptr cinfo, int ci, int j, int maxj) -/* Return largest input value that should map to j'th output value */ -/* Must have largest(j=0) >= 0, and largest(j=maxj) >= MAXJSAMPLE */ -{ - /* Breakpoints are halfway between values returned by output_value */ - return (int) (((INT32) (2*j + 1) * MAXJSAMPLE + maxj) / (2*maxj)); -} - - -/* - * Create the colormap. - */ - -LOCAL(void) -create_colormap (j_decompress_ptr cinfo) -{ - my_cquantize_ptr cquantize = (my_cquantize_ptr) cinfo->cquantize; - JSAMPARRAY colormap; /* Created colormap */ - int total_colors; /* Number of distinct output colors */ - int i,j,k, nci, blksize, blkdist, ptr, val; - - /* Select number of colors for each component */ - total_colors = select_ncolors(cinfo, cquantize->Ncolors); - - /* Report selected color counts */ - if (cinfo->out_color_components == 3) - TRACEMS4(cinfo, 1, JTRC_QUANT_3_NCOLORS, - total_colors, cquantize->Ncolors[0], - cquantize->Ncolors[1], cquantize->Ncolors[2]); - else - TRACEMS1(cinfo, 1, JTRC_QUANT_NCOLORS, total_colors); - - /* Allocate and fill in the colormap. */ - /* The colors are ordered in the map in standard row-major order, */ - /* i.e. rightmost (highest-indexed) color changes most rapidly. */ - - colormap = (*cinfo->mem->alloc_sarray) - ((j_common_ptr) cinfo, JPOOL_IMAGE, - (JDIMENSION) total_colors, (JDIMENSION) cinfo->out_color_components); - - /* blksize is number of adjacent repeated entries for a component */ - /* blkdist is distance between groups of identical entries for a component */ - blkdist = total_colors; - - for (i = 0; i < cinfo->out_color_components; i++) { - /* fill in colormap entries for i'th color component */ - nci = cquantize->Ncolors[i]; /* # of distinct values for this color */ - blksize = blkdist / nci; - for (j = 0; j < nci; j++) { - /* Compute j'th output value (out of nci) for component */ - val = output_value(cinfo, i, j, nci-1); - /* Fill in all colormap entries that have this value of this component */ - for (ptr = j * blksize; ptr < total_colors; ptr += blkdist) { - /* fill in blksize entries beginning at ptr */ - for (k = 0; k < blksize; k++) - colormap[i][ptr+k] = (JSAMPLE) val; - } - } - blkdist = blksize; /* blksize of this color is blkdist of next */ - } - - /* Save the colormap in private storage, - * where it will survive color quantization mode changes. - */ - cquantize->sv_colormap = colormap; - cquantize->sv_actual = total_colors; -} - - -/* - * Create the color index table. - */ - -LOCAL(void) -create_colorindex (j_decompress_ptr cinfo) -{ - my_cquantize_ptr cquantize = (my_cquantize_ptr) cinfo->cquantize; - JSAMPROW indexptr; - int i,j,k, nci, blksize, val, pad; - - /* For ordered dither, we pad the color index tables by MAXJSAMPLE in - * each direction (input index values can be -MAXJSAMPLE .. 2*MAXJSAMPLE). - * This is not necessary in the other dithering modes. However, we - * flag whether it was done in case user changes dithering mode. - */ - if (cinfo->dither_mode == JDITHER_ORDERED) { - pad = MAXJSAMPLE*2; - cquantize->is_padded = TRUE; - } else { - pad = 0; - cquantize->is_padded = FALSE; - } - - cquantize->colorindex = (*cinfo->mem->alloc_sarray) - ((j_common_ptr) cinfo, JPOOL_IMAGE, - (JDIMENSION) (MAXJSAMPLE+1 + pad), - (JDIMENSION) cinfo->out_color_components); - - /* blksize is number of adjacent repeated entries for a component */ - blksize = cquantize->sv_actual; - - for (i = 0; i < cinfo->out_color_components; i++) { - /* fill in colorindex entries for i'th color component */ - nci = cquantize->Ncolors[i]; /* # of distinct values for this color */ - blksize = blksize / nci; - - /* adjust colorindex pointers to provide padding at negative indexes. */ - if (pad) - cquantize->colorindex[i] += MAXJSAMPLE; - - /* in loop, val = index of current output value, */ - /* and k = largest j that maps to current val */ - indexptr = cquantize->colorindex[i]; - val = 0; - k = largest_input_value(cinfo, i, 0, nci-1); - for (j = 0; j <= MAXJSAMPLE; j++) { - while (j > k) /* advance val if past boundary */ - k = largest_input_value(cinfo, i, ++val, nci-1); - /* premultiply so that no multiplication needed in main processing */ - indexptr[j] = (JSAMPLE) (val * blksize); - } - /* Pad at both ends if necessary */ - if (pad) - for (j = 1; j <= MAXJSAMPLE; j++) { - indexptr[-j] = indexptr[0]; - indexptr[MAXJSAMPLE+j] = indexptr[MAXJSAMPLE]; - } - } -} - - -/* - * Create an ordered-dither array for a component having ncolors - * distinct output values. - */ - -LOCAL(ODITHER_MATRIX_PTR) -make_odither_array (j_decompress_ptr cinfo, int ncolors) -{ - ODITHER_MATRIX_PTR odither; - int j,k; - INT32 num,den; - - odither = (ODITHER_MATRIX_PTR) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - SIZEOF(ODITHER_MATRIX)); - /* The inter-value distance for this color is MAXJSAMPLE/(ncolors-1). - * Hence the dither value for the matrix cell with fill order f - * (f=0..N-1) should be (N-1-2*f)/(2*N) * MAXJSAMPLE/(ncolors-1). - * On 16-bit-int machine, be careful to avoid overflow. - */ - den = 2 * ODITHER_CELLS * ((INT32) (ncolors - 1)); - for (j = 0; j < ODITHER_SIZE; j++) { - for (k = 0; k < ODITHER_SIZE; k++) { - num = ((INT32) (ODITHER_CELLS-1 - 2*((int)base_dither_matrix[j][k]))) - * MAXJSAMPLE; - /* Ensure round towards zero despite C's lack of consistency - * about rounding negative values in integer division... - */ - odither[j][k] = (int) (num<0 ? -((-num)/den) : num/den); - } - } - return odither; -} - - -/* - * Create the ordered-dither tables. - * Components having the same number of representative colors may - * share a dither table. - */ - -LOCAL(void) -create_odither_tables (j_decompress_ptr cinfo) -{ - my_cquantize_ptr cquantize = (my_cquantize_ptr) cinfo->cquantize; - ODITHER_MATRIX_PTR odither; - int i, j, nci; - - for (i = 0; i < cinfo->out_color_components; i++) { - nci = cquantize->Ncolors[i]; /* # of distinct values for this color */ - odither = NULL; /* search for matching prior component */ - for (j = 0; j < i; j++) { - if (nci == cquantize->Ncolors[j]) { - odither = cquantize->odither[j]; - break; - } - } - if (odither == NULL) /* need a new table? */ - odither = make_odither_array(cinfo, nci); - cquantize->odither[i] = odither; - } -} - - -/* - * Map some rows of pixels to the output colormapped representation. - */ - -METHODDEF(void) -color_quantize (j_decompress_ptr cinfo, JSAMPARRAY input_buf, - JSAMPARRAY output_buf, int num_rows) -/* General case, no dithering */ -{ - my_cquantize_ptr cquantize = (my_cquantize_ptr) cinfo->cquantize; - JSAMPARRAY colorindex = cquantize->colorindex; - register int pixcode, ci; - register JSAMPROW ptrin, ptrout; - int row; - JDIMENSION col; - JDIMENSION width = cinfo->output_width; - register int nc = cinfo->out_color_components; - - for (row = 0; row < num_rows; row++) { - ptrin = input_buf[row]; - ptrout = output_buf[row]; - for (col = width; col > 0; col--) { - pixcode = 0; - for (ci = 0; ci < nc; ci++) { - pixcode += GETJSAMPLE(colorindex[ci][GETJSAMPLE(*ptrin++)]); - } - *ptrout++ = (JSAMPLE) pixcode; - } - } -} - - -METHODDEF(void) -color_quantize3 (j_decompress_ptr cinfo, JSAMPARRAY input_buf, - JSAMPARRAY output_buf, int num_rows) -/* Fast path for out_color_components==3, no dithering */ -{ - my_cquantize_ptr cquantize = (my_cquantize_ptr) cinfo->cquantize; - register int pixcode; - register JSAMPROW ptrin, ptrout; - JSAMPROW colorindex0 = cquantize->colorindex[0]; - JSAMPROW colorindex1 = cquantize->colorindex[1]; - JSAMPROW colorindex2 = cquantize->colorindex[2]; - int row; - JDIMENSION col; - JDIMENSION width = cinfo->output_width; - - for (row = 0; row < num_rows; row++) { - ptrin = input_buf[row]; - ptrout = output_buf[row]; - for (col = width; col > 0; col--) { - pixcode = GETJSAMPLE(colorindex0[GETJSAMPLE(*ptrin++)]); - pixcode += GETJSAMPLE(colorindex1[GETJSAMPLE(*ptrin++)]); - pixcode += GETJSAMPLE(colorindex2[GETJSAMPLE(*ptrin++)]); - *ptrout++ = (JSAMPLE) pixcode; - } - } -} - - -METHODDEF(void) -quantize_ord_dither (j_decompress_ptr cinfo, JSAMPARRAY input_buf, - JSAMPARRAY output_buf, int num_rows) -/* General case, with ordered dithering */ -{ - my_cquantize_ptr cquantize = (my_cquantize_ptr) cinfo->cquantize; - register JSAMPROW input_ptr; - register JSAMPROW output_ptr; - JSAMPROW colorindex_ci; - int * dither; /* points to active row of dither matrix */ - int row_index, col_index; /* current indexes into dither matrix */ - int nc = cinfo->out_color_components; - int ci; - int row; - JDIMENSION col; - JDIMENSION width = cinfo->output_width; - - for (row = 0; row < num_rows; row++) { - /* Initialize output values to 0 so can process components separately */ - FMEMZERO((void FAR *) output_buf[row], - (size_t) (width * SIZEOF(JSAMPLE))); - row_index = cquantize->row_index; - for (ci = 0; ci < nc; ci++) { - input_ptr = input_buf[row] + ci; - output_ptr = output_buf[row]; - colorindex_ci = cquantize->colorindex[ci]; - dither = cquantize->odither[ci][row_index]; - col_index = 0; - - for (col = width; col > 0; col--) { - /* Form pixel value + dither, range-limit to 0..MAXJSAMPLE, - * select output value, accumulate into output code for this pixel. - * Range-limiting need not be done explicitly, as we have extended - * the colorindex table to produce the right answers for out-of-range - * inputs. The maximum dither is +- MAXJSAMPLE; this sets the - * required amount of padding. - */ - *output_ptr += colorindex_ci[GETJSAMPLE(*input_ptr)+dither[col_index]]; - input_ptr += nc; - output_ptr++; - col_index = (col_index + 1) & ODITHER_MASK; - } - } - /* Advance row index for next row */ - row_index = (row_index + 1) & ODITHER_MASK; - cquantize->row_index = row_index; - } -} - - -METHODDEF(void) -quantize3_ord_dither (j_decompress_ptr cinfo, JSAMPARRAY input_buf, - JSAMPARRAY output_buf, int num_rows) -/* Fast path for out_color_components==3, with ordered dithering */ -{ - my_cquantize_ptr cquantize = (my_cquantize_ptr) cinfo->cquantize; - register int pixcode; - register JSAMPROW input_ptr; - register JSAMPROW output_ptr; - JSAMPROW colorindex0 = cquantize->colorindex[0]; - JSAMPROW colorindex1 = cquantize->colorindex[1]; - JSAMPROW colorindex2 = cquantize->colorindex[2]; - int * dither0; /* points to active row of dither matrix */ - int * dither1; - int * dither2; - int row_index, col_index; /* current indexes into dither matrix */ - int row; - JDIMENSION col; - JDIMENSION width = cinfo->output_width; - - for (row = 0; row < num_rows; row++) { - row_index = cquantize->row_index; - input_ptr = input_buf[row]; - output_ptr = output_buf[row]; - dither0 = cquantize->odither[0][row_index]; - dither1 = cquantize->odither[1][row_index]; - dither2 = cquantize->odither[2][row_index]; - col_index = 0; - - for (col = width; col > 0; col--) { - pixcode = GETJSAMPLE(colorindex0[GETJSAMPLE(*input_ptr++) + - dither0[col_index]]); - pixcode += GETJSAMPLE(colorindex1[GETJSAMPLE(*input_ptr++) + - dither1[col_index]]); - pixcode += GETJSAMPLE(colorindex2[GETJSAMPLE(*input_ptr++) + - dither2[col_index]]); - *output_ptr++ = (JSAMPLE) pixcode; - col_index = (col_index + 1) & ODITHER_MASK; - } - row_index = (row_index + 1) & ODITHER_MASK; - cquantize->row_index = row_index; - } -} - - -METHODDEF(void) -quantize_fs_dither (j_decompress_ptr cinfo, JSAMPARRAY input_buf, - JSAMPARRAY output_buf, int num_rows) -/* General case, with Floyd-Steinberg dithering */ -{ - my_cquantize_ptr cquantize = (my_cquantize_ptr) cinfo->cquantize; - register LOCFSERROR cur; /* current error or pixel value */ - LOCFSERROR belowerr; /* error for pixel below cur */ - LOCFSERROR bpreverr; /* error for below/prev col */ - LOCFSERROR bnexterr; /* error for below/next col */ - LOCFSERROR delta; - register FSERRPTR errorptr; /* => fserrors[] at column before current */ - register JSAMPROW input_ptr; - register JSAMPROW output_ptr; - JSAMPROW colorindex_ci; - JSAMPROW colormap_ci; - int pixcode; - int nc = cinfo->out_color_components; - int dir; /* 1 for left-to-right, -1 for right-to-left */ - int dirnc; /* dir * nc */ - int ci; - int row; - JDIMENSION col; - JDIMENSION width = cinfo->output_width; - JSAMPLE *range_limit = cinfo->sample_range_limit; - SHIFT_TEMPS - - for (row = 0; row < num_rows; row++) { - /* Initialize output values to 0 so can process components separately */ - FMEMZERO((void FAR *) output_buf[row], - (size_t) (width * SIZEOF(JSAMPLE))); - for (ci = 0; ci < nc; ci++) { - input_ptr = input_buf[row] + ci; - output_ptr = output_buf[row]; - if (cquantize->on_odd_row) { - /* work right to left in this row */ - input_ptr += (width-1) * nc; /* so point to rightmost pixel */ - output_ptr += width-1; - dir = -1; - dirnc = -nc; - errorptr = cquantize->fserrors[ci] + (width+1); /* => entry after last column */ - } else { - /* work left to right in this row */ - dir = 1; - dirnc = nc; - errorptr = cquantize->fserrors[ci]; /* => entry before first column */ - } - colorindex_ci = cquantize->colorindex[ci]; - colormap_ci = cquantize->sv_colormap[ci]; - /* Preset error values: no error propagated to first pixel from left */ - cur = 0; - /* and no error propagated to row below yet */ - belowerr = bpreverr = 0; - - for (col = width; col > 0; col--) { - /* cur holds the error propagated from the previous pixel on the - * current line. Add the error propagated from the previous line - * to form the complete error correction term for this pixel, and - * round the error term (which is expressed * 16) to an integer. - * RIGHT_SHIFT rounds towards minus infinity, so adding 8 is correct - * for either sign of the error value. - * Note: errorptr points to *previous* column's array entry. - */ - cur = RIGHT_SHIFT(cur + errorptr[dir] + 8, 4); - /* Form pixel value + error, and range-limit to 0..MAXJSAMPLE. - * The maximum error is +- MAXJSAMPLE; this sets the required size - * of the range_limit array. - */ - cur += GETJSAMPLE(*input_ptr); - cur = GETJSAMPLE(range_limit[cur]); - /* Select output value, accumulate into output code for this pixel */ - pixcode = GETJSAMPLE(colorindex_ci[cur]); - *output_ptr += (JSAMPLE) pixcode; - /* Compute actual representation error at this pixel */ - /* Note: we can do this even though we don't have the final */ - /* pixel code, because the colormap is orthogonal. */ - cur -= GETJSAMPLE(colormap_ci[pixcode]); - /* Compute error fractions to be propagated to adjacent pixels. - * Add these into the running sums, and simultaneously shift the - * next-line error sums left by 1 column. - */ - bnexterr = cur; - delta = cur * 2; - cur += delta; /* form error * 3 */ - errorptr[0] = (FSERROR) (bpreverr + cur); - cur += delta; /* form error * 5 */ - bpreverr = belowerr + cur; - belowerr = bnexterr; - cur += delta; /* form error * 7 */ - /* At this point cur contains the 7/16 error value to be propagated - * to the next pixel on the current line, and all the errors for the - * next line have been shifted over. We are therefore ready to move on. - */ - input_ptr += dirnc; /* advance input ptr to next column */ - output_ptr += dir; /* advance output ptr to next column */ - errorptr += dir; /* advance errorptr to current column */ - } - /* Post-loop cleanup: we must unload the final error value into the - * final fserrors[] entry. Note we need not unload belowerr because - * it is for the dummy column before or after the actual array. - */ - errorptr[0] = (FSERROR) bpreverr; /* unload prev err into array */ - } - cquantize->on_odd_row = (cquantize->on_odd_row ? FALSE : TRUE); - } -} - - -/* - * Allocate workspace for Floyd-Steinberg errors. - */ - -LOCAL(void) -alloc_fs_workspace (j_decompress_ptr cinfo) -{ - my_cquantize_ptr cquantize = (my_cquantize_ptr) cinfo->cquantize; - size_t arraysize; - int i; - - arraysize = (size_t) ((cinfo->output_width + 2) * SIZEOF(FSERROR)); - for (i = 0; i < cinfo->out_color_components; i++) { - cquantize->fserrors[i] = (FSERRPTR) - (*cinfo->mem->alloc_large)((j_common_ptr) cinfo, JPOOL_IMAGE, arraysize); - } -} - - -/* - * Initialize for one-pass color quantization. - */ - -METHODDEF(void) -start_pass_1_quant (j_decompress_ptr cinfo, boolean is_pre_scan) -{ - my_cquantize_ptr cquantize = (my_cquantize_ptr) cinfo->cquantize; - size_t arraysize; - int i; - - /* Install my colormap. */ - cinfo->colormap = cquantize->sv_colormap; - cinfo->actual_number_of_colors = cquantize->sv_actual; - - /* Initialize for desired dithering mode. */ - switch (cinfo->dither_mode) { - case JDITHER_NONE: - if (cinfo->out_color_components == 3) - cquantize->pub.color_quantize = color_quantize3; - else - cquantize->pub.color_quantize = color_quantize; - break; - case JDITHER_ORDERED: - if (cinfo->out_color_components == 3) - cquantize->pub.color_quantize = quantize3_ord_dither; - else - cquantize->pub.color_quantize = quantize_ord_dither; - cquantize->row_index = 0; /* initialize state for ordered dither */ - /* If user changed to ordered dither from another mode, - * we must recreate the color index table with padding. - * This will cost extra space, but probably isn't very likely. - */ - if (! cquantize->is_padded) - create_colorindex(cinfo); - /* Create ordered-dither tables if we didn't already. */ - if (cquantize->odither[0] == NULL) - create_odither_tables(cinfo); - break; - case JDITHER_FS: - cquantize->pub.color_quantize = quantize_fs_dither; - cquantize->on_odd_row = FALSE; /* initialize state for F-S dither */ - /* Allocate Floyd-Steinberg workspace if didn't already. */ - if (cquantize->fserrors[0] == NULL) - alloc_fs_workspace(cinfo); - /* Initialize the propagated errors to zero. */ - arraysize = (size_t) ((cinfo->output_width + 2) * SIZEOF(FSERROR)); - for (i = 0; i < cinfo->out_color_components; i++) - FMEMZERO((void FAR *) cquantize->fserrors[i], arraysize); - break; - default: - ERREXIT(cinfo, JERR_NOT_COMPILED); - break; - } -} - - -/* - * Finish up at the end of the pass. - */ - -METHODDEF(void) -finish_pass_1_quant (j_decompress_ptr cinfo) -{ - /* no work in 1-pass case */ -} - - -/* - * Switch to a new external colormap between output passes. - * Shouldn't get to this module! - */ - -METHODDEF(void) -new_color_map_1_quant (j_decompress_ptr cinfo) -{ - ERREXIT(cinfo, JERR_MODE_CHANGE); -} - - -/* - * Module initialization routine for 1-pass color quantization. - */ - -GLOBAL(void) -jinit_1pass_quantizer (j_decompress_ptr cinfo) -{ - my_cquantize_ptr cquantize; - - cquantize = (my_cquantize_ptr) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - SIZEOF(my_cquantizer)); - cinfo->cquantize = (struct jpeg_color_quantizer *) cquantize; - cquantize->pub.start_pass = start_pass_1_quant; - cquantize->pub.finish_pass = finish_pass_1_quant; - cquantize->pub.new_color_map = new_color_map_1_quant; - cquantize->fserrors[0] = NULL; /* Flag FS workspace not allocated */ - cquantize->odither[0] = NULL; /* Also flag odither arrays not allocated */ - - /* Make sure my internal arrays won't overflow */ - if (cinfo->out_color_components > MAX_Q_COMPS) - ERREXIT1(cinfo, JERR_QUANT_COMPONENTS, MAX_Q_COMPS); - /* Make sure colormap indexes can be represented by JSAMPLEs */ - if (cinfo->desired_number_of_colors > (MAXJSAMPLE+1)) - ERREXIT1(cinfo, JERR_QUANT_MANY_COLORS, MAXJSAMPLE+1); - - /* Create the colormap and color index table. */ - create_colormap(cinfo); - create_colorindex(cinfo); - - /* Allocate Floyd-Steinberg workspace now if requested. - * We do this now since it is FAR storage and may affect the memory - * manager's space calculations. If the user changes to FS dither - * mode in a later pass, we will allocate the space then, and will - * possibly overrun the max_memory_to_use setting. - */ - if (cinfo->dither_mode == JDITHER_FS) - alloc_fs_workspace(cinfo); -} - -#endif /* QUANT_1PASS_SUPPORTED */ diff --git a/jpg/jquant2.c b/jpg/jquant2.c deleted file mode 100644 index 38fc2af..0000000 --- a/jpg/jquant2.c +++ /dev/null @@ -1,1311 +0,0 @@ -/* - * jquant2.c - * - * Copyright (C) 1991-1996, Thomas G. Lane. - * Modified 2011 by Guido Vollbeding. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file contains 2-pass color quantization (color mapping) routines. - * These routines provide selection of a custom color map for an image, - * followed by mapping of the image to that color map, with optional - * Floyd-Steinberg dithering. - * It is also possible to use just the second pass to map to an arbitrary - * externally-given color map. - * - * Note: ordered dithering is not supported, since there isn't any fast - * way to compute intercolor distances; it's unclear that ordered dither's - * fundamental assumptions even hold with an irregularly spaced color map. - */ - -#define JPEG_INTERNALS -#include "jinclude.h" -#include "jpeglib.h" - -#ifdef QUANT_2PASS_SUPPORTED - - -/* - * This module implements the well-known Heckbert paradigm for color - * quantization. Most of the ideas used here can be traced back to - * Heckbert's seminal paper - * Heckbert, Paul. "Color Image Quantization for Frame Buffer Display", - * Proc. SIGGRAPH '82, Computer Graphics v.16 #3 (July 1982), pp 297-304. - * - * In the first pass over the image, we accumulate a histogram showing the - * usage count of each possible color. To keep the histogram to a reasonable - * size, we reduce the precision of the input; typical practice is to retain - * 5 or 6 bits per color, so that 8 or 4 different input values are counted - * in the same histogram cell. - * - * Next, the color-selection step begins with a box representing the whole - * color space, and repeatedly splits the "largest" remaining box until we - * have as many boxes as desired colors. Then the mean color in each - * remaining box becomes one of the possible output colors. - * - * The second pass over the image maps each input pixel to the closest output - * color (optionally after applying a Floyd-Steinberg dithering correction). - * This mapping is logically trivial, but making it go fast enough requires - * considerable care. - * - * Heckbert-style quantizers vary a good deal in their policies for choosing - * the "largest" box and deciding where to cut it. The particular policies - * used here have proved out well in experimental comparisons, but better ones - * may yet be found. - * - * In earlier versions of the IJG code, this module quantized in YCbCr color - * space, processing the raw upsampled data without a color conversion step. - * This allowed the color conversion math to be done only once per colormap - * entry, not once per pixel. However, that optimization precluded other - * useful optimizations (such as merging color conversion with upsampling) - * and it also interfered with desired capabilities such as quantizing to an - * externally-supplied colormap. We have therefore abandoned that approach. - * The present code works in the post-conversion color space, typically RGB. - * - * To improve the visual quality of the results, we actually work in scaled - * RGB space, giving G distances more weight than R, and R in turn more than - * B. To do everything in integer math, we must use integer scale factors. - * The 2/3/1 scale factors used here correspond loosely to the relative - * weights of the colors in the NTSC grayscale equation. - * If you want to use this code to quantize a non-RGB color space, you'll - * probably need to change these scale factors. - */ - -#define R_SCALE 2 /* scale R distances by this much */ -#define G_SCALE 3 /* scale G distances by this much */ -#define B_SCALE 1 /* and B by this much */ - -/* Relabel R/G/B as components 0/1/2, respecting the RGB ordering defined - * in jmorecfg.h. As the code stands, it will do the right thing for R,G,B - * and B,G,R orders. If you define some other weird order in jmorecfg.h, - * you'll get compile errors until you extend this logic. In that case - * you'll probably want to tweak the histogram sizes too. - */ - -#if RGB_RED == 0 -#define C0_SCALE R_SCALE -#endif -#if RGB_BLUE == 0 -#define C0_SCALE B_SCALE -#endif -#if RGB_GREEN == 1 -#define C1_SCALE G_SCALE -#endif -#if RGB_RED == 2 -#define C2_SCALE R_SCALE -#endif -#if RGB_BLUE == 2 -#define C2_SCALE B_SCALE -#endif - - -/* - * First we have the histogram data structure and routines for creating it. - * - * The number of bits of precision can be adjusted by changing these symbols. - * We recommend keeping 6 bits for G and 5 each for R and B. - * If you have plenty of memory and cycles, 6 bits all around gives marginally - * better results; if you are short of memory, 5 bits all around will save - * some space but degrade the results. - * To maintain a fully accurate histogram, we'd need to allocate a "long" - * (preferably unsigned long) for each cell. In practice this is overkill; - * we can get by with 16 bits per cell. Few of the cell counts will overflow, - * and clamping those that do overflow to the maximum value will give close- - * enough results. This reduces the recommended histogram size from 256Kb - * to 128Kb, which is a useful savings on PC-class machines. - * (In the second pass the histogram space is re-used for pixel mapping data; - * in that capacity, each cell must be able to store zero to the number of - * desired colors. 16 bits/cell is plenty for that too.) - * Since the JPEG code is intended to run in small memory model on 80x86 - * machines, we can't just allocate the histogram in one chunk. Instead - * of a true 3-D array, we use a row of pointers to 2-D arrays. Each - * pointer corresponds to a C0 value (typically 2^5 = 32 pointers) and - * each 2-D array has 2^6*2^5 = 2048 or 2^6*2^6 = 4096 entries. Note that - * on 80x86 machines, the pointer row is in near memory but the actual - * arrays are in far memory (same arrangement as we use for image arrays). - */ - -#define MAXNUMCOLORS (MAXJSAMPLE+1) /* maximum size of colormap */ - -/* These will do the right thing for either R,G,B or B,G,R color order, - * but you may not like the results for other color orders. - */ -#define HIST_C0_BITS 5 /* bits of precision in R/B histogram */ -#define HIST_C1_BITS 6 /* bits of precision in G histogram */ -#define HIST_C2_BITS 5 /* bits of precision in B/R histogram */ - -/* Number of elements along histogram axes. */ -#define HIST_C0_ELEMS (1<cquantize; - register JSAMPROW ptr; - register histptr histp; - register hist3d histogram = cquantize->histogram; - int row; - JDIMENSION col; - JDIMENSION width = cinfo->output_width; - - for (row = 0; row < num_rows; row++) { - ptr = input_buf[row]; - for (col = width; col > 0; col--) { - /* get pixel value and index into the histogram */ - histp = & histogram[GETJSAMPLE(ptr[0]) >> C0_SHIFT] - [GETJSAMPLE(ptr[1]) >> C1_SHIFT] - [GETJSAMPLE(ptr[2]) >> C2_SHIFT]; - /* increment, check for overflow and undo increment if so. */ - if (++(*histp) <= 0) - (*histp)--; - ptr += 3; - } - } -} - - -/* - * Next we have the really interesting routines: selection of a colormap - * given the completed histogram. - * These routines work with a list of "boxes", each representing a rectangular - * subset of the input color space (to histogram precision). - */ - -typedef struct { - /* The bounds of the box (inclusive); expressed as histogram indexes */ - int c0min, c0max; - int c1min, c1max; - int c2min, c2max; - /* The volume (actually 2-norm) of the box */ - INT32 volume; - /* The number of nonzero histogram cells within this box */ - long colorcount; -} box; - -typedef box * boxptr; - - -LOCAL(boxptr) -find_biggest_color_pop (boxptr boxlist, int numboxes) -/* Find the splittable box with the largest color population */ -/* Returns NULL if no splittable boxes remain */ -{ - register boxptr boxp; - register int i; - register long maxc = 0; - boxptr which = NULL; - - for (i = 0, boxp = boxlist; i < numboxes; i++, boxp++) { - if (boxp->colorcount > maxc && boxp->volume > 0) { - which = boxp; - maxc = boxp->colorcount; - } - } - return which; -} - - -LOCAL(boxptr) -find_biggest_volume (boxptr boxlist, int numboxes) -/* Find the splittable box with the largest (scaled) volume */ -/* Returns NULL if no splittable boxes remain */ -{ - register boxptr boxp; - register int i; - register INT32 maxv = 0; - boxptr which = NULL; - - for (i = 0, boxp = boxlist; i < numboxes; i++, boxp++) { - if (boxp->volume > maxv) { - which = boxp; - maxv = boxp->volume; - } - } - return which; -} - - -LOCAL(void) -update_box (j_decompress_ptr cinfo, boxptr boxp) -/* Shrink the min/max bounds of a box to enclose only nonzero elements, */ -/* and recompute its volume and population */ -{ - my_cquantize_ptr cquantize = (my_cquantize_ptr) cinfo->cquantize; - hist3d histogram = cquantize->histogram; - histptr histp; - int c0,c1,c2; - int c0min,c0max,c1min,c1max,c2min,c2max; - INT32 dist0,dist1,dist2; - long ccount; - - c0min = boxp->c0min; c0max = boxp->c0max; - c1min = boxp->c1min; c1max = boxp->c1max; - c2min = boxp->c2min; c2max = boxp->c2max; - - if (c0max > c0min) - for (c0 = c0min; c0 <= c0max; c0++) - for (c1 = c1min; c1 <= c1max; c1++) { - histp = & histogram[c0][c1][c2min]; - for (c2 = c2min; c2 <= c2max; c2++) - if (*histp++ != 0) { - boxp->c0min = c0min = c0; - goto have_c0min; - } - } - have_c0min: - if (c0max > c0min) - for (c0 = c0max; c0 >= c0min; c0--) - for (c1 = c1min; c1 <= c1max; c1++) { - histp = & histogram[c0][c1][c2min]; - for (c2 = c2min; c2 <= c2max; c2++) - if (*histp++ != 0) { - boxp->c0max = c0max = c0; - goto have_c0max; - } - } - have_c0max: - if (c1max > c1min) - for (c1 = c1min; c1 <= c1max; c1++) - for (c0 = c0min; c0 <= c0max; c0++) { - histp = & histogram[c0][c1][c2min]; - for (c2 = c2min; c2 <= c2max; c2++) - if (*histp++ != 0) { - boxp->c1min = c1min = c1; - goto have_c1min; - } - } - have_c1min: - if (c1max > c1min) - for (c1 = c1max; c1 >= c1min; c1--) - for (c0 = c0min; c0 <= c0max; c0++) { - histp = & histogram[c0][c1][c2min]; - for (c2 = c2min; c2 <= c2max; c2++) - if (*histp++ != 0) { - boxp->c1max = c1max = c1; - goto have_c1max; - } - } - have_c1max: - if (c2max > c2min) - for (c2 = c2min; c2 <= c2max; c2++) - for (c0 = c0min; c0 <= c0max; c0++) { - histp = & histogram[c0][c1min][c2]; - for (c1 = c1min; c1 <= c1max; c1++, histp += HIST_C2_ELEMS) - if (*histp != 0) { - boxp->c2min = c2min = c2; - goto have_c2min; - } - } - have_c2min: - if (c2max > c2min) - for (c2 = c2max; c2 >= c2min; c2--) - for (c0 = c0min; c0 <= c0max; c0++) { - histp = & histogram[c0][c1min][c2]; - for (c1 = c1min; c1 <= c1max; c1++, histp += HIST_C2_ELEMS) - if (*histp != 0) { - boxp->c2max = c2max = c2; - goto have_c2max; - } - } - have_c2max: - - /* Update box volume. - * We use 2-norm rather than real volume here; this biases the method - * against making long narrow boxes, and it has the side benefit that - * a box is splittable iff norm > 0. - * Since the differences are expressed in histogram-cell units, - * we have to shift back to JSAMPLE units to get consistent distances; - * after which, we scale according to the selected distance scale factors. - */ - dist0 = ((c0max - c0min) << C0_SHIFT) * C0_SCALE; - dist1 = ((c1max - c1min) << C1_SHIFT) * C1_SCALE; - dist2 = ((c2max - c2min) << C2_SHIFT) * C2_SCALE; - boxp->volume = dist0*dist0 + dist1*dist1 + dist2*dist2; - - /* Now scan remaining volume of box and compute population */ - ccount = 0; - for (c0 = c0min; c0 <= c0max; c0++) - for (c1 = c1min; c1 <= c1max; c1++) { - histp = & histogram[c0][c1][c2min]; - for (c2 = c2min; c2 <= c2max; c2++, histp++) - if (*histp != 0) { - ccount++; - } - } - boxp->colorcount = ccount; -} - - -LOCAL(int) -median_cut (j_decompress_ptr cinfo, boxptr boxlist, int numboxes, - int desired_colors) -/* Repeatedly select and split the largest box until we have enough boxes */ -{ - int n,lb; - int c0,c1,c2,cmax; - register boxptr b1,b2; - - while (numboxes < desired_colors) { - /* Select box to split. - * Current algorithm: by population for first half, then by volume. - */ - if (numboxes*2 <= desired_colors) { - b1 = find_biggest_color_pop(boxlist, numboxes); - } else { - b1 = find_biggest_volume(boxlist, numboxes); - } - if (b1 == NULL) /* no splittable boxes left! */ - break; - b2 = &boxlist[numboxes]; /* where new box will go */ - /* Copy the color bounds to the new box. */ - b2->c0max = b1->c0max; b2->c1max = b1->c1max; b2->c2max = b1->c2max; - b2->c0min = b1->c0min; b2->c1min = b1->c1min; b2->c2min = b1->c2min; - /* Choose which axis to split the box on. - * Current algorithm: longest scaled axis. - * See notes in update_box about scaling distances. - */ - c0 = ((b1->c0max - b1->c0min) << C0_SHIFT) * C0_SCALE; - c1 = ((b1->c1max - b1->c1min) << C1_SHIFT) * C1_SCALE; - c2 = ((b1->c2max - b1->c2min) << C2_SHIFT) * C2_SCALE; - /* We want to break any ties in favor of green, then red, blue last. - * This code does the right thing for R,G,B or B,G,R color orders only. - */ -#if RGB_RED == 0 - cmax = c1; n = 1; - if (c0 > cmax) { cmax = c0; n = 0; } - if (c2 > cmax) { n = 2; } -#else - cmax = c1; n = 1; - if (c2 > cmax) { cmax = c2; n = 2; } - if (c0 > cmax) { n = 0; } -#endif - /* Choose split point along selected axis, and update box bounds. - * Current algorithm: split at halfway point. - * (Since the box has been shrunk to minimum volume, - * any split will produce two nonempty subboxes.) - * Note that lb value is max for lower box, so must be < old max. - */ - switch (n) { - case 0: - lb = (b1->c0max + b1->c0min) / 2; - b1->c0max = lb; - b2->c0min = lb+1; - break; - case 1: - lb = (b1->c1max + b1->c1min) / 2; - b1->c1max = lb; - b2->c1min = lb+1; - break; - case 2: - lb = (b1->c2max + b1->c2min) / 2; - b1->c2max = lb; - b2->c2min = lb+1; - break; - } - /* Update stats for boxes */ - update_box(cinfo, b1); - update_box(cinfo, b2); - numboxes++; - } - return numboxes; -} - - -LOCAL(void) -compute_color (j_decompress_ptr cinfo, boxptr boxp, int icolor) -/* Compute representative color for a box, put it in colormap[icolor] */ -{ - /* Current algorithm: mean weighted by pixels (not colors) */ - /* Note it is important to get the rounding correct! */ - my_cquantize_ptr cquantize = (my_cquantize_ptr) cinfo->cquantize; - hist3d histogram = cquantize->histogram; - histptr histp; - int c0,c1,c2; - int c0min,c0max,c1min,c1max,c2min,c2max; - long count; - long total = 0; - long c0total = 0; - long c1total = 0; - long c2total = 0; - - c0min = boxp->c0min; c0max = boxp->c0max; - c1min = boxp->c1min; c1max = boxp->c1max; - c2min = boxp->c2min; c2max = boxp->c2max; - - for (c0 = c0min; c0 <= c0max; c0++) - for (c1 = c1min; c1 <= c1max; c1++) { - histp = & histogram[c0][c1][c2min]; - for (c2 = c2min; c2 <= c2max; c2++) { - if ((count = *histp++) != 0) { - total += count; - c0total += ((c0 << C0_SHIFT) + ((1<>1)) * count; - c1total += ((c1 << C1_SHIFT) + ((1<>1)) * count; - c2total += ((c2 << C2_SHIFT) + ((1<>1)) * count; - } - } - } - - cinfo->colormap[0][icolor] = (JSAMPLE) ((c0total + (total>>1)) / total); - cinfo->colormap[1][icolor] = (JSAMPLE) ((c1total + (total>>1)) / total); - cinfo->colormap[2][icolor] = (JSAMPLE) ((c2total + (total>>1)) / total); -} - - -LOCAL(void) -select_colors (j_decompress_ptr cinfo, int desired_colors) -/* Master routine for color selection */ -{ - boxptr boxlist; - int numboxes; - int i; - - /* Allocate workspace for box list */ - boxlist = (boxptr) (*cinfo->mem->alloc_small) - ((j_common_ptr) cinfo, JPOOL_IMAGE, desired_colors * SIZEOF(box)); - /* Initialize one box containing whole space */ - numboxes = 1; - boxlist[0].c0min = 0; - boxlist[0].c0max = MAXJSAMPLE >> C0_SHIFT; - boxlist[0].c1min = 0; - boxlist[0].c1max = MAXJSAMPLE >> C1_SHIFT; - boxlist[0].c2min = 0; - boxlist[0].c2max = MAXJSAMPLE >> C2_SHIFT; - /* Shrink it to actually-used volume and set its statistics */ - update_box(cinfo, & boxlist[0]); - /* Perform median-cut to produce final box list */ - numboxes = median_cut(cinfo, boxlist, numboxes, desired_colors); - /* Compute the representative color for each box, fill colormap */ - for (i = 0; i < numboxes; i++) - compute_color(cinfo, & boxlist[i], i); - cinfo->actual_number_of_colors = numboxes; - TRACEMS1(cinfo, 1, JTRC_QUANT_SELECTED, numboxes); -} - - -/* - * These routines are concerned with the time-critical task of mapping input - * colors to the nearest color in the selected colormap. - * - * We re-use the histogram space as an "inverse color map", essentially a - * cache for the results of nearest-color searches. All colors within a - * histogram cell will be mapped to the same colormap entry, namely the one - * closest to the cell's center. This may not be quite the closest entry to - * the actual input color, but it's almost as good. A zero in the cache - * indicates we haven't found the nearest color for that cell yet; the array - * is cleared to zeroes before starting the mapping pass. When we find the - * nearest color for a cell, its colormap index plus one is recorded in the - * cache for future use. The pass2 scanning routines call fill_inverse_cmap - * when they need to use an unfilled entry in the cache. - * - * Our method of efficiently finding nearest colors is based on the "locally - * sorted search" idea described by Heckbert and on the incremental distance - * calculation described by Spencer W. Thomas in chapter III.1 of Graphics - * Gems II (James Arvo, ed. Academic Press, 1991). Thomas points out that - * the distances from a given colormap entry to each cell of the histogram can - * be computed quickly using an incremental method: the differences between - * distances to adjacent cells themselves differ by a constant. This allows a - * fairly fast implementation of the "brute force" approach of computing the - * distance from every colormap entry to every histogram cell. Unfortunately, - * it needs a work array to hold the best-distance-so-far for each histogram - * cell (because the inner loop has to be over cells, not colormap entries). - * The work array elements have to be INT32s, so the work array would need - * 256Kb at our recommended precision. This is not feasible in DOS machines. - * - * To get around these problems, we apply Thomas' method to compute the - * nearest colors for only the cells within a small subbox of the histogram. - * The work array need be only as big as the subbox, so the memory usage - * problem is solved. Furthermore, we need not fill subboxes that are never - * referenced in pass2; many images use only part of the color gamut, so a - * fair amount of work is saved. An additional advantage of this - * approach is that we can apply Heckbert's locality criterion to quickly - * eliminate colormap entries that are far away from the subbox; typically - * three-fourths of the colormap entries are rejected by Heckbert's criterion, - * and we need not compute their distances to individual cells in the subbox. - * The speed of this approach is heavily influenced by the subbox size: too - * small means too much overhead, too big loses because Heckbert's criterion - * can't eliminate as many colormap entries. Empirically the best subbox - * size seems to be about 1/512th of the histogram (1/8th in each direction). - * - * Thomas' article also describes a refined method which is asymptotically - * faster than the brute-force method, but it is also far more complex and - * cannot efficiently be applied to small subboxes. It is therefore not - * useful for programs intended to be portable to DOS machines. On machines - * with plenty of memory, filling the whole histogram in one shot with Thomas' - * refined method might be faster than the present code --- but then again, - * it might not be any faster, and it's certainly more complicated. - */ - - -/* log2(histogram cells in update box) for each axis; this can be adjusted */ -#define BOX_C0_LOG (HIST_C0_BITS-3) -#define BOX_C1_LOG (HIST_C1_BITS-3) -#define BOX_C2_LOG (HIST_C2_BITS-3) - -#define BOX_C0_ELEMS (1<actual_number_of_colors; - int maxc0, maxc1, maxc2; - int centerc0, centerc1, centerc2; - int i, x, ncolors; - INT32 minmaxdist, min_dist, max_dist, tdist; - INT32 mindist[MAXNUMCOLORS]; /* min distance to colormap entry i */ - - /* Compute true coordinates of update box's upper corner and center. - * Actually we compute the coordinates of the center of the upper-corner - * histogram cell, which are the upper bounds of the volume we care about. - * Note that since ">>" rounds down, the "center" values may be closer to - * min than to max; hence comparisons to them must be "<=", not "<". - */ - maxc0 = minc0 + ((1 << BOX_C0_SHIFT) - (1 << C0_SHIFT)); - centerc0 = (minc0 + maxc0) >> 1; - maxc1 = minc1 + ((1 << BOX_C1_SHIFT) - (1 << C1_SHIFT)); - centerc1 = (minc1 + maxc1) >> 1; - maxc2 = minc2 + ((1 << BOX_C2_SHIFT) - (1 << C2_SHIFT)); - centerc2 = (minc2 + maxc2) >> 1; - - /* For each color in colormap, find: - * 1. its minimum squared-distance to any point in the update box - * (zero if color is within update box); - * 2. its maximum squared-distance to any point in the update box. - * Both of these can be found by considering only the corners of the box. - * We save the minimum distance for each color in mindist[]; - * only the smallest maximum distance is of interest. - */ - minmaxdist = 0x7FFFFFFFL; - - for (i = 0; i < numcolors; i++) { - /* We compute the squared-c0-distance term, then add in the other two. */ - x = GETJSAMPLE(cinfo->colormap[0][i]); - if (x < minc0) { - tdist = (x - minc0) * C0_SCALE; - min_dist = tdist*tdist; - tdist = (x - maxc0) * C0_SCALE; - max_dist = tdist*tdist; - } else if (x > maxc0) { - tdist = (x - maxc0) * C0_SCALE; - min_dist = tdist*tdist; - tdist = (x - minc0) * C0_SCALE; - max_dist = tdist*tdist; - } else { - /* within cell range so no contribution to min_dist */ - min_dist = 0; - if (x <= centerc0) { - tdist = (x - maxc0) * C0_SCALE; - max_dist = tdist*tdist; - } else { - tdist = (x - minc0) * C0_SCALE; - max_dist = tdist*tdist; - } - } - - x = GETJSAMPLE(cinfo->colormap[1][i]); - if (x < minc1) { - tdist = (x - minc1) * C1_SCALE; - min_dist += tdist*tdist; - tdist = (x - maxc1) * C1_SCALE; - max_dist += tdist*tdist; - } else if (x > maxc1) { - tdist = (x - maxc1) * C1_SCALE; - min_dist += tdist*tdist; - tdist = (x - minc1) * C1_SCALE; - max_dist += tdist*tdist; - } else { - /* within cell range so no contribution to min_dist */ - if (x <= centerc1) { - tdist = (x - maxc1) * C1_SCALE; - max_dist += tdist*tdist; - } else { - tdist = (x - minc1) * C1_SCALE; - max_dist += tdist*tdist; - } - } - - x = GETJSAMPLE(cinfo->colormap[2][i]); - if (x < minc2) { - tdist = (x - minc2) * C2_SCALE; - min_dist += tdist*tdist; - tdist = (x - maxc2) * C2_SCALE; - max_dist += tdist*tdist; - } else if (x > maxc2) { - tdist = (x - maxc2) * C2_SCALE; - min_dist += tdist*tdist; - tdist = (x - minc2) * C2_SCALE; - max_dist += tdist*tdist; - } else { - /* within cell range so no contribution to min_dist */ - if (x <= centerc2) { - tdist = (x - maxc2) * C2_SCALE; - max_dist += tdist*tdist; - } else { - tdist = (x - minc2) * C2_SCALE; - max_dist += tdist*tdist; - } - } - - mindist[i] = min_dist; /* save away the results */ - if (max_dist < minmaxdist) - minmaxdist = max_dist; - } - - /* Now we know that no cell in the update box is more than minmaxdist - * away from some colormap entry. Therefore, only colors that are - * within minmaxdist of some part of the box need be considered. - */ - ncolors = 0; - for (i = 0; i < numcolors; i++) { - if (mindist[i] <= minmaxdist) - colorlist[ncolors++] = (JSAMPLE) i; - } - return ncolors; -} - - -LOCAL(void) -find_best_colors (j_decompress_ptr cinfo, int minc0, int minc1, int minc2, - int numcolors, JSAMPLE colorlist[], JSAMPLE bestcolor[]) -/* Find the closest colormap entry for each cell in the update box, - * given the list of candidate colors prepared by find_nearby_colors. - * Return the indexes of the closest entries in the bestcolor[] array. - * This routine uses Thomas' incremental distance calculation method to - * find the distance from a colormap entry to successive cells in the box. - */ -{ - int ic0, ic1, ic2; - int i, icolor; - register INT32 * bptr; /* pointer into bestdist[] array */ - JSAMPLE * cptr; /* pointer into bestcolor[] array */ - INT32 dist0, dist1; /* initial distance values */ - register INT32 dist2; /* current distance in inner loop */ - INT32 xx0, xx1; /* distance increments */ - register INT32 xx2; - INT32 inc0, inc1, inc2; /* initial values for increments */ - /* This array holds the distance to the nearest-so-far color for each cell */ - INT32 bestdist[BOX_C0_ELEMS * BOX_C1_ELEMS * BOX_C2_ELEMS]; - - /* Initialize best-distance for each cell of the update box */ - bptr = bestdist; - for (i = BOX_C0_ELEMS*BOX_C1_ELEMS*BOX_C2_ELEMS-1; i >= 0; i--) - *bptr++ = 0x7FFFFFFFL; - - /* For each color selected by find_nearby_colors, - * compute its distance to the center of each cell in the box. - * If that's less than best-so-far, update best distance and color number. - */ - - /* Nominal steps between cell centers ("x" in Thomas article) */ -#define STEP_C0 ((1 << C0_SHIFT) * C0_SCALE) -#define STEP_C1 ((1 << C1_SHIFT) * C1_SCALE) -#define STEP_C2 ((1 << C2_SHIFT) * C2_SCALE) - - for (i = 0; i < numcolors; i++) { - icolor = GETJSAMPLE(colorlist[i]); - /* Compute (square of) distance from minc0/c1/c2 to this color */ - inc0 = (minc0 - GETJSAMPLE(cinfo->colormap[0][icolor])) * C0_SCALE; - dist0 = inc0*inc0; - inc1 = (minc1 - GETJSAMPLE(cinfo->colormap[1][icolor])) * C1_SCALE; - dist0 += inc1*inc1; - inc2 = (minc2 - GETJSAMPLE(cinfo->colormap[2][icolor])) * C2_SCALE; - dist0 += inc2*inc2; - /* Form the initial difference increments */ - inc0 = inc0 * (2 * STEP_C0) + STEP_C0 * STEP_C0; - inc1 = inc1 * (2 * STEP_C1) + STEP_C1 * STEP_C1; - inc2 = inc2 * (2 * STEP_C2) + STEP_C2 * STEP_C2; - /* Now loop over all cells in box, updating distance per Thomas method */ - bptr = bestdist; - cptr = bestcolor; - xx0 = inc0; - for (ic0 = BOX_C0_ELEMS-1; ic0 >= 0; ic0--) { - dist1 = dist0; - xx1 = inc1; - for (ic1 = BOX_C1_ELEMS-1; ic1 >= 0; ic1--) { - dist2 = dist1; - xx2 = inc2; - for (ic2 = BOX_C2_ELEMS-1; ic2 >= 0; ic2--) { - if (dist2 < *bptr) { - *bptr = dist2; - *cptr = (JSAMPLE) icolor; - } - dist2 += xx2; - xx2 += 2 * STEP_C2 * STEP_C2; - bptr++; - cptr++; - } - dist1 += xx1; - xx1 += 2 * STEP_C1 * STEP_C1; - } - dist0 += xx0; - xx0 += 2 * STEP_C0 * STEP_C0; - } - } -} - - -LOCAL(void) -fill_inverse_cmap (j_decompress_ptr cinfo, int c0, int c1, int c2) -/* Fill the inverse-colormap entries in the update box that contains */ -/* histogram cell c0/c1/c2. (Only that one cell MUST be filled, but */ -/* we can fill as many others as we wish.) */ -{ - my_cquantize_ptr cquantize = (my_cquantize_ptr) cinfo->cquantize; - hist3d histogram = cquantize->histogram; - int minc0, minc1, minc2; /* lower left corner of update box */ - int ic0, ic1, ic2; - register JSAMPLE * cptr; /* pointer into bestcolor[] array */ - register histptr cachep; /* pointer into main cache array */ - /* This array lists the candidate colormap indexes. */ - JSAMPLE colorlist[MAXNUMCOLORS]; - int numcolors; /* number of candidate colors */ - /* This array holds the actually closest colormap index for each cell. */ - JSAMPLE bestcolor[BOX_C0_ELEMS * BOX_C1_ELEMS * BOX_C2_ELEMS]; - - /* Convert cell coordinates to update box ID */ - c0 >>= BOX_C0_LOG; - c1 >>= BOX_C1_LOG; - c2 >>= BOX_C2_LOG; - - /* Compute true coordinates of update box's origin corner. - * Actually we compute the coordinates of the center of the corner - * histogram cell, which are the lower bounds of the volume we care about. - */ - minc0 = (c0 << BOX_C0_SHIFT) + ((1 << C0_SHIFT) >> 1); - minc1 = (c1 << BOX_C1_SHIFT) + ((1 << C1_SHIFT) >> 1); - minc2 = (c2 << BOX_C2_SHIFT) + ((1 << C2_SHIFT) >> 1); - - /* Determine which colormap entries are close enough to be candidates - * for the nearest entry to some cell in the update box. - */ - numcolors = find_nearby_colors(cinfo, minc0, minc1, minc2, colorlist); - - /* Determine the actually nearest colors. */ - find_best_colors(cinfo, minc0, minc1, minc2, numcolors, colorlist, - bestcolor); - - /* Save the best color numbers (plus 1) in the main cache array */ - c0 <<= BOX_C0_LOG; /* convert ID back to base cell indexes */ - c1 <<= BOX_C1_LOG; - c2 <<= BOX_C2_LOG; - cptr = bestcolor; - for (ic0 = 0; ic0 < BOX_C0_ELEMS; ic0++) { - for (ic1 = 0; ic1 < BOX_C1_ELEMS; ic1++) { - cachep = & histogram[c0+ic0][c1+ic1][c2]; - for (ic2 = 0; ic2 < BOX_C2_ELEMS; ic2++) { - *cachep++ = (histcell) (GETJSAMPLE(*cptr++) + 1); - } - } - } -} - - -/* - * Map some rows of pixels to the output colormapped representation. - */ - -METHODDEF(void) -pass2_no_dither (j_decompress_ptr cinfo, - JSAMPARRAY input_buf, JSAMPARRAY output_buf, int num_rows) -/* This version performs no dithering */ -{ - my_cquantize_ptr cquantize = (my_cquantize_ptr) cinfo->cquantize; - hist3d histogram = cquantize->histogram; - register JSAMPROW inptr, outptr; - register histptr cachep; - register int c0, c1, c2; - int row; - JDIMENSION col; - JDIMENSION width = cinfo->output_width; - - for (row = 0; row < num_rows; row++) { - inptr = input_buf[row]; - outptr = output_buf[row]; - for (col = width; col > 0; col--) { - /* get pixel value and index into the cache */ - c0 = GETJSAMPLE(*inptr++) >> C0_SHIFT; - c1 = GETJSAMPLE(*inptr++) >> C1_SHIFT; - c2 = GETJSAMPLE(*inptr++) >> C2_SHIFT; - cachep = & histogram[c0][c1][c2]; - /* If we have not seen this color before, find nearest colormap entry */ - /* and update the cache */ - if (*cachep == 0) - fill_inverse_cmap(cinfo, c0,c1,c2); - /* Now emit the colormap index for this cell */ - *outptr++ = (JSAMPLE) (*cachep - 1); - } - } -} - - -METHODDEF(void) -pass2_fs_dither (j_decompress_ptr cinfo, - JSAMPARRAY input_buf, JSAMPARRAY output_buf, int num_rows) -/* This version performs Floyd-Steinberg dithering */ -{ - my_cquantize_ptr cquantize = (my_cquantize_ptr) cinfo->cquantize; - hist3d histogram = cquantize->histogram; - register LOCFSERROR cur0, cur1, cur2; /* current error or pixel value */ - LOCFSERROR belowerr0, belowerr1, belowerr2; /* error for pixel below cur */ - LOCFSERROR bpreverr0, bpreverr1, bpreverr2; /* error for below/prev col */ - register FSERRPTR errorptr; /* => fserrors[] at column before current */ - JSAMPROW inptr; /* => current input pixel */ - JSAMPROW outptr; /* => current output pixel */ - histptr cachep; - int dir; /* +1 or -1 depending on direction */ - int dir3; /* 3*dir, for advancing inptr & errorptr */ - int row; - JDIMENSION col; - JDIMENSION width = cinfo->output_width; - JSAMPLE *range_limit = cinfo->sample_range_limit; - int *error_limit = cquantize->error_limiter; - JSAMPROW colormap0 = cinfo->colormap[0]; - JSAMPROW colormap1 = cinfo->colormap[1]; - JSAMPROW colormap2 = cinfo->colormap[2]; - SHIFT_TEMPS - - for (row = 0; row < num_rows; row++) { - inptr = input_buf[row]; - outptr = output_buf[row]; - if (cquantize->on_odd_row) { - /* work right to left in this row */ - inptr += (width-1) * 3; /* so point to rightmost pixel */ - outptr += width-1; - dir = -1; - dir3 = -3; - errorptr = cquantize->fserrors + (width+1)*3; /* => entry after last column */ - cquantize->on_odd_row = FALSE; /* flip for next time */ - } else { - /* work left to right in this row */ - dir = 1; - dir3 = 3; - errorptr = cquantize->fserrors; /* => entry before first real column */ - cquantize->on_odd_row = TRUE; /* flip for next time */ - } - /* Preset error values: no error propagated to first pixel from left */ - cur0 = cur1 = cur2 = 0; - /* and no error propagated to row below yet */ - belowerr0 = belowerr1 = belowerr2 = 0; - bpreverr0 = bpreverr1 = bpreverr2 = 0; - - for (col = width; col > 0; col--) { - /* curN holds the error propagated from the previous pixel on the - * current line. Add the error propagated from the previous line - * to form the complete error correction term for this pixel, and - * round the error term (which is expressed * 16) to an integer. - * RIGHT_SHIFT rounds towards minus infinity, so adding 8 is correct - * for either sign of the error value. - * Note: errorptr points to *previous* column's array entry. - */ - cur0 = RIGHT_SHIFT(cur0 + errorptr[dir3+0] + 8, 4); - cur1 = RIGHT_SHIFT(cur1 + errorptr[dir3+1] + 8, 4); - cur2 = RIGHT_SHIFT(cur2 + errorptr[dir3+2] + 8, 4); - /* Limit the error using transfer function set by init_error_limit. - * See comments with init_error_limit for rationale. - */ - cur0 = error_limit[cur0]; - cur1 = error_limit[cur1]; - cur2 = error_limit[cur2]; - /* Form pixel value + error, and range-limit to 0..MAXJSAMPLE. - * The maximum error is +- MAXJSAMPLE (or less with error limiting); - * this sets the required size of the range_limit array. - */ - cur0 += GETJSAMPLE(inptr[0]); - cur1 += GETJSAMPLE(inptr[1]); - cur2 += GETJSAMPLE(inptr[2]); - cur0 = GETJSAMPLE(range_limit[cur0]); - cur1 = GETJSAMPLE(range_limit[cur1]); - cur2 = GETJSAMPLE(range_limit[cur2]); - /* Index into the cache with adjusted pixel value */ - cachep = & histogram[cur0>>C0_SHIFT][cur1>>C1_SHIFT][cur2>>C2_SHIFT]; - /* If we have not seen this color before, find nearest colormap */ - /* entry and update the cache */ - if (*cachep == 0) - fill_inverse_cmap(cinfo, cur0>>C0_SHIFT,cur1>>C1_SHIFT,cur2>>C2_SHIFT); - /* Now emit the colormap index for this cell */ - { register int pixcode = *cachep - 1; - *outptr = (JSAMPLE) pixcode; - /* Compute representation error for this pixel */ - cur0 -= GETJSAMPLE(colormap0[pixcode]); - cur1 -= GETJSAMPLE(colormap1[pixcode]); - cur2 -= GETJSAMPLE(colormap2[pixcode]); - } - /* Compute error fractions to be propagated to adjacent pixels. - * Add these into the running sums, and simultaneously shift the - * next-line error sums left by 1 column. - */ - { register LOCFSERROR bnexterr, delta; - - bnexterr = cur0; /* Process component 0 */ - delta = cur0 * 2; - cur0 += delta; /* form error * 3 */ - errorptr[0] = (FSERROR) (bpreverr0 + cur0); - cur0 += delta; /* form error * 5 */ - bpreverr0 = belowerr0 + cur0; - belowerr0 = bnexterr; - cur0 += delta; /* form error * 7 */ - bnexterr = cur1; /* Process component 1 */ - delta = cur1 * 2; - cur1 += delta; /* form error * 3 */ - errorptr[1] = (FSERROR) (bpreverr1 + cur1); - cur1 += delta; /* form error * 5 */ - bpreverr1 = belowerr1 + cur1; - belowerr1 = bnexterr; - cur1 += delta; /* form error * 7 */ - bnexterr = cur2; /* Process component 2 */ - delta = cur2 * 2; - cur2 += delta; /* form error * 3 */ - errorptr[2] = (FSERROR) (bpreverr2 + cur2); - cur2 += delta; /* form error * 5 */ - bpreverr2 = belowerr2 + cur2; - belowerr2 = bnexterr; - cur2 += delta; /* form error * 7 */ - } - /* At this point curN contains the 7/16 error value to be propagated - * to the next pixel on the current line, and all the errors for the - * next line have been shifted over. We are therefore ready to move on. - */ - inptr += dir3; /* Advance pixel pointers to next column */ - outptr += dir; - errorptr += dir3; /* advance errorptr to current column */ - } - /* Post-loop cleanup: we must unload the final error values into the - * final fserrors[] entry. Note we need not unload belowerrN because - * it is for the dummy column before or after the actual array. - */ - errorptr[0] = (FSERROR) bpreverr0; /* unload prev errs into array */ - errorptr[1] = (FSERROR) bpreverr1; - errorptr[2] = (FSERROR) bpreverr2; - } -} - - -/* - * Initialize the error-limiting transfer function (lookup table). - * The raw F-S error computation can potentially compute error values of up to - * +- MAXJSAMPLE. But we want the maximum correction applied to a pixel to be - * much less, otherwise obviously wrong pixels will be created. (Typical - * effects include weird fringes at color-area boundaries, isolated bright - * pixels in a dark area, etc.) The standard advice for avoiding this problem - * is to ensure that the "corners" of the color cube are allocated as output - * colors; then repeated errors in the same direction cannot cause cascading - * error buildup. However, that only prevents the error from getting - * completely out of hand; Aaron Giles reports that error limiting improves - * the results even with corner colors allocated. - * A simple clamping of the error values to about +- MAXJSAMPLE/8 works pretty - * well, but the smoother transfer function used below is even better. Thanks - * to Aaron Giles for this idea. - */ - -LOCAL(void) -init_error_limit (j_decompress_ptr cinfo) -/* Allocate and fill in the error_limiter table */ -{ - my_cquantize_ptr cquantize = (my_cquantize_ptr) cinfo->cquantize; - int * table; - int in, out; - - table = (int *) (*cinfo->mem->alloc_small) - ((j_common_ptr) cinfo, JPOOL_IMAGE, (MAXJSAMPLE*2+1) * SIZEOF(int)); - table += MAXJSAMPLE; /* so can index -MAXJSAMPLE .. +MAXJSAMPLE */ - cquantize->error_limiter = table; - -#define STEPSIZE ((MAXJSAMPLE+1)/16) - /* Map errors 1:1 up to +- MAXJSAMPLE/16 */ - out = 0; - for (in = 0; in < STEPSIZE; in++, out++) { - table[in] = out; table[-in] = -out; - } - /* Map errors 1:2 up to +- 3*MAXJSAMPLE/16 */ - for (; in < STEPSIZE*3; in++, out += (in&1) ? 0 : 1) { - table[in] = out; table[-in] = -out; - } - /* Clamp the rest to final out value (which is (MAXJSAMPLE+1)/8) */ - for (; in <= MAXJSAMPLE; in++) { - table[in] = out; table[-in] = -out; - } -#undef STEPSIZE -} - - -/* - * Finish up at the end of each pass. - */ - -METHODDEF(void) -finish_pass1 (j_decompress_ptr cinfo) -{ - my_cquantize_ptr cquantize = (my_cquantize_ptr) cinfo->cquantize; - - /* Select the representative colors and fill in cinfo->colormap */ - cinfo->colormap = cquantize->sv_colormap; - select_colors(cinfo, cquantize->desired); - /* Force next pass to zero the color index table */ - cquantize->needs_zeroed = TRUE; -} - - -METHODDEF(void) -finish_pass2 (j_decompress_ptr cinfo) -{ - /* no work */ -} - - -/* - * Initialize for each processing pass. - */ - -METHODDEF(void) -start_pass_2_quant (j_decompress_ptr cinfo, boolean is_pre_scan) -{ - my_cquantize_ptr cquantize = (my_cquantize_ptr) cinfo->cquantize; - hist3d histogram = cquantize->histogram; - int i; - - /* Only F-S dithering or no dithering is supported. */ - /* If user asks for ordered dither, give him F-S. */ - if (cinfo->dither_mode != JDITHER_NONE) - cinfo->dither_mode = JDITHER_FS; - - if (is_pre_scan) { - /* Set up method pointers */ - cquantize->pub.color_quantize = prescan_quantize; - cquantize->pub.finish_pass = finish_pass1; - cquantize->needs_zeroed = TRUE; /* Always zero histogram */ - } else { - /* Set up method pointers */ - if (cinfo->dither_mode == JDITHER_FS) - cquantize->pub.color_quantize = pass2_fs_dither; - else - cquantize->pub.color_quantize = pass2_no_dither; - cquantize->pub.finish_pass = finish_pass2; - - /* Make sure color count is acceptable */ - i = cinfo->actual_number_of_colors; - if (i < 1) - ERREXIT1(cinfo, JERR_QUANT_FEW_COLORS, 1); - if (i > MAXNUMCOLORS) - ERREXIT1(cinfo, JERR_QUANT_MANY_COLORS, MAXNUMCOLORS); - - if (cinfo->dither_mode == JDITHER_FS) { - size_t arraysize = (size_t) ((cinfo->output_width + 2) * - (3 * SIZEOF(FSERROR))); - /* Allocate Floyd-Steinberg workspace if we didn't already. */ - if (cquantize->fserrors == NULL) - cquantize->fserrors = (FSERRPTR) (*cinfo->mem->alloc_large) - ((j_common_ptr) cinfo, JPOOL_IMAGE, arraysize); - /* Initialize the propagated errors to zero. */ - FMEMZERO((void FAR *) cquantize->fserrors, arraysize); - /* Make the error-limit table if we didn't already. */ - if (cquantize->error_limiter == NULL) - init_error_limit(cinfo); - cquantize->on_odd_row = FALSE; - } - - } - /* Zero the histogram or inverse color map, if necessary */ - if (cquantize->needs_zeroed) { - for (i = 0; i < HIST_C0_ELEMS; i++) { - FMEMZERO((void FAR *) histogram[i], - HIST_C1_ELEMS*HIST_C2_ELEMS * SIZEOF(histcell)); - } - cquantize->needs_zeroed = FALSE; - } -} - - -/* - * Switch to a new external colormap between output passes. - */ - -METHODDEF(void) -new_color_map_2_quant (j_decompress_ptr cinfo) -{ - my_cquantize_ptr cquantize = (my_cquantize_ptr) cinfo->cquantize; - - /* Reset the inverse color map */ - cquantize->needs_zeroed = TRUE; -} - - -/* - * Module initialization routine for 2-pass color quantization. - */ - -GLOBAL(void) -jinit_2pass_quantizer (j_decompress_ptr cinfo) -{ - my_cquantize_ptr cquantize; - int i; - - cquantize = (my_cquantize_ptr) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - SIZEOF(my_cquantizer)); - cinfo->cquantize = (struct jpeg_color_quantizer *) cquantize; - cquantize->pub.start_pass = start_pass_2_quant; - cquantize->pub.new_color_map = new_color_map_2_quant; - cquantize->fserrors = NULL; /* flag optional arrays not allocated */ - cquantize->error_limiter = NULL; - - /* Make sure jdmaster didn't give me a case I can't handle */ - if (cinfo->out_color_components != 3) - ERREXIT(cinfo, JERR_NOTIMPL); - - /* Allocate the histogram/inverse colormap storage */ - cquantize->histogram = (hist3d) (*cinfo->mem->alloc_small) - ((j_common_ptr) cinfo, JPOOL_IMAGE, HIST_C0_ELEMS * SIZEOF(hist2d)); - for (i = 0; i < HIST_C0_ELEMS; i++) { - cquantize->histogram[i] = (hist2d) (*cinfo->mem->alloc_large) - ((j_common_ptr) cinfo, JPOOL_IMAGE, - HIST_C1_ELEMS*HIST_C2_ELEMS * SIZEOF(histcell)); - } - cquantize->needs_zeroed = TRUE; /* histogram is garbage now */ - - /* Allocate storage for the completed colormap, if required. - * We do this now since it is FAR storage and may affect - * the memory manager's space calculations. - */ - if (cinfo->enable_2pass_quant) { - /* Make sure color count is acceptable */ - int desired = cinfo->desired_number_of_colors; - /* Lower bound on # of colors ... somewhat arbitrary as long as > 0 */ - if (desired < 8) - ERREXIT1(cinfo, JERR_QUANT_FEW_COLORS, 8); - /* Make sure colormap indexes can be represented by JSAMPLEs */ - if (desired > MAXNUMCOLORS) - ERREXIT1(cinfo, JERR_QUANT_MANY_COLORS, MAXNUMCOLORS); - cquantize->sv_colormap = (*cinfo->mem->alloc_sarray) - ((j_common_ptr) cinfo,JPOOL_IMAGE, (JDIMENSION) desired, (JDIMENSION) 3); - cquantize->desired = desired; - } else - cquantize->sv_colormap = NULL; - - /* Only F-S dithering or no dithering is supported. */ - /* If user asks for ordered dither, give him F-S. */ - if (cinfo->dither_mode != JDITHER_NONE) - cinfo->dither_mode = JDITHER_FS; - - /* Allocate Floyd-Steinberg workspace if necessary. - * This isn't really needed until pass 2, but again it is FAR storage. - * Although we will cope with a later change in dither_mode, - * we do not promise to honor max_memory_to_use if dither_mode changes. - */ - if (cinfo->dither_mode == JDITHER_FS) { - cquantize->fserrors = (FSERRPTR) (*cinfo->mem->alloc_large) - ((j_common_ptr) cinfo, JPOOL_IMAGE, - (size_t) ((cinfo->output_width + 2) * (3 * SIZEOF(FSERROR)))); - /* Might as well create the error-limiting table too. */ - init_error_limit(cinfo); - } -} - -#endif /* QUANT_2PASS_SUPPORTED */ diff --git a/jpg/jutils.c b/jpg/jutils.c deleted file mode 100644 index 5b16b6d..0000000 --- a/jpg/jutils.c +++ /dev/null @@ -1,227 +0,0 @@ -/* - * jutils.c - * - * Copyright (C) 1991-1996, Thomas G. Lane. - * Modified 2009-2011 by Guido Vollbeding. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file contains tables and miscellaneous utility routines needed - * for both compression and decompression. - * Note we prefix all global names with "j" to minimize conflicts with - * a surrounding application. - */ - -#define JPEG_INTERNALS -#include "jinclude.h" -#include "jpeglib.h" - - -/* - * jpeg_zigzag_order[i] is the zigzag-order position of the i'th element - * of a DCT block read in natural order (left to right, top to bottom). - */ - -#if 0 /* This table is not actually needed in v6a */ - -const int jpeg_zigzag_order[DCTSIZE2] = { - 0, 1, 5, 6, 14, 15, 27, 28, - 2, 4, 7, 13, 16, 26, 29, 42, - 3, 8, 12, 17, 25, 30, 41, 43, - 9, 11, 18, 24, 31, 40, 44, 53, - 10, 19, 23, 32, 39, 45, 52, 54, - 20, 22, 33, 38, 46, 51, 55, 60, - 21, 34, 37, 47, 50, 56, 59, 61, - 35, 36, 48, 49, 57, 58, 62, 63 -}; - -#endif - -/* - * jpeg_natural_order[i] is the natural-order position of the i'th element - * of zigzag order. - * - * When reading corrupted data, the Huffman decoders could attempt - * to reference an entry beyond the end of this array (if the decoded - * zero run length reaches past the end of the block). To prevent - * wild stores without adding an inner-loop test, we put some extra - * "63"s after the real entries. This will cause the extra coefficient - * to be stored in location 63 of the block, not somewhere random. - * The worst case would be a run-length of 15, which means we need 16 - * fake entries. - */ - -const int jpeg_natural_order[DCTSIZE2+16] = { - 0, 1, 8, 16, 9, 2, 3, 10, - 17, 24, 32, 25, 18, 11, 4, 5, - 12, 19, 26, 33, 40, 48, 41, 34, - 27, 20, 13, 6, 7, 14, 21, 28, - 35, 42, 49, 56, 57, 50, 43, 36, - 29, 22, 15, 23, 30, 37, 44, 51, - 58, 59, 52, 45, 38, 31, 39, 46, - 53, 60, 61, 54, 47, 55, 62, 63, - 63, 63, 63, 63, 63, 63, 63, 63, /* extra entries for safety in decoder */ - 63, 63, 63, 63, 63, 63, 63, 63 -}; - -const int jpeg_natural_order7[7*7+16] = { - 0, 1, 8, 16, 9, 2, 3, 10, - 17, 24, 32, 25, 18, 11, 4, 5, - 12, 19, 26, 33, 40, 48, 41, 34, - 27, 20, 13, 6, 14, 21, 28, 35, - 42, 49, 50, 43, 36, 29, 22, 30, - 37, 44, 51, 52, 45, 38, 46, 53, - 54, - 63, 63, 63, 63, 63, 63, 63, 63, /* extra entries for safety in decoder */ - 63, 63, 63, 63, 63, 63, 63, 63 -}; - -const int jpeg_natural_order6[6*6+16] = { - 0, 1, 8, 16, 9, 2, 3, 10, - 17, 24, 32, 25, 18, 11, 4, 5, - 12, 19, 26, 33, 40, 41, 34, 27, - 20, 13, 21, 28, 35, 42, 43, 36, - 29, 37, 44, 45, - 63, 63, 63, 63, 63, 63, 63, 63, /* extra entries for safety in decoder */ - 63, 63, 63, 63, 63, 63, 63, 63 -}; - -const int jpeg_natural_order5[5*5+16] = { - 0, 1, 8, 16, 9, 2, 3, 10, - 17, 24, 32, 25, 18, 11, 4, 12, - 19, 26, 33, 34, 27, 20, 28, 35, - 36, - 63, 63, 63, 63, 63, 63, 63, 63, /* extra entries for safety in decoder */ - 63, 63, 63, 63, 63, 63, 63, 63 -}; - -const int jpeg_natural_order4[4*4+16] = { - 0, 1, 8, 16, 9, 2, 3, 10, - 17, 24, 25, 18, 11, 19, 26, 27, - 63, 63, 63, 63, 63, 63, 63, 63, /* extra entries for safety in decoder */ - 63, 63, 63, 63, 63, 63, 63, 63 -}; - -const int jpeg_natural_order3[3*3+16] = { - 0, 1, 8, 16, 9, 2, 10, 17, - 18, - 63, 63, 63, 63, 63, 63, 63, 63, /* extra entries for safety in decoder */ - 63, 63, 63, 63, 63, 63, 63, 63 -}; - -const int jpeg_natural_order2[2*2+16] = { - 0, 1, 8, 9, - 63, 63, 63, 63, 63, 63, 63, 63, /* extra entries for safety in decoder */ - 63, 63, 63, 63, 63, 63, 63, 63 -}; - - -/* - * Arithmetic utilities - */ - -GLOBAL(long) -jdiv_round_up (long a, long b) -/* Compute a/b rounded up to next integer, ie, ceil(a/b) */ -/* Assumes a >= 0, b > 0 */ -{ - return (a + b - 1L) / b; -} - - -GLOBAL(long) -jround_up (long a, long b) -/* Compute a rounded up to next multiple of b, ie, ceil(a/b)*b */ -/* Assumes a >= 0, b > 0 */ -{ - a += b - 1L; - return a - (a % b); -} - - -/* On normal machines we can apply MEMCOPY() and MEMZERO() to sample arrays - * and coefficient-block arrays. This won't work on 80x86 because the arrays - * are FAR and we're assuming a small-pointer memory model. However, some - * DOS compilers provide far-pointer versions of memcpy() and memset() even - * in the small-model libraries. These will be used if USE_FMEM is defined. - * Otherwise, the routines below do it the hard way. (The performance cost - * is not all that great, because these routines aren't very heavily used.) - */ - -#ifndef NEED_FAR_POINTERS /* normal case, same as regular macro */ -#define FMEMCOPY(dest,src,size) MEMCOPY(dest,src,size) -#else /* 80x86 case, define if we can */ -#ifdef USE_FMEM -#define FMEMCOPY(dest,src,size) _fmemcpy((void FAR *)(dest), (const void FAR *)(src), (size_t)(size)) -#else -/* This function is for use by the FMEMZERO macro defined in jpegint.h. - * Do not call this function directly, use the FMEMZERO macro instead. - */ -GLOBAL(void) -jzero_far (void FAR * target, size_t bytestozero) -/* Zero out a chunk of FAR memory. */ -/* This might be sample-array data, block-array data, or alloc_large data. */ -{ - register char FAR * ptr = (char FAR *) target; - register size_t count; - - for (count = bytestozero; count > 0; count--) { - *ptr++ = 0; - } -} -#endif -#endif - - -GLOBAL(void) -jcopy_sample_rows (JSAMPARRAY input_array, int source_row, - JSAMPARRAY output_array, int dest_row, - int num_rows, JDIMENSION num_cols) -/* Copy some rows of samples from one place to another. - * num_rows rows are copied from input_array[source_row++] - * to output_array[dest_row++]; these areas may overlap for duplication. - * The source and destination arrays must be at least as wide as num_cols. - */ -{ - register JSAMPROW inptr, outptr; -#ifdef FMEMCOPY - register size_t count = (size_t) (num_cols * SIZEOF(JSAMPLE)); -#else - register JDIMENSION count; -#endif - register int row; - - input_array += source_row; - output_array += dest_row; - - for (row = num_rows; row > 0; row--) { - inptr = *input_array++; - outptr = *output_array++; -#ifdef FMEMCOPY - FMEMCOPY(outptr, inptr, count); -#else - for (count = num_cols; count > 0; count--) - *outptr++ = *inptr++; /* needn't bother with GETJSAMPLE() here */ -#endif - } -} - - -GLOBAL(void) -jcopy_block_row (JBLOCKROW input_row, JBLOCKROW output_row, - JDIMENSION num_blocks) -/* Copy a row of coefficient blocks from one place to another. */ -{ -#ifdef FMEMCOPY - FMEMCOPY(output_row, input_row, num_blocks * (DCTSIZE2 * SIZEOF(JCOEF))); -#else - register JCOEFPTR inptr, outptr; - register long count; - - inptr = (JCOEFPTR) input_row; - outptr = (JCOEFPTR) output_row; - for (count = (long) num_blocks * DCTSIZE2; count > 0; count--) { - *outptr++ = *inptr++; - } -#endif -} diff --git a/jpg/jversion.h b/jpg/jversion.h deleted file mode 100644 index 5d49151..0000000 --- a/jpg/jversion.h +++ /dev/null @@ -1,14 +0,0 @@ -/* - * jversion.h - * - * Copyright (C) 1991-2012, Thomas G. Lane, Guido Vollbeding. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file contains software version identification. - */ - - -#define JVERSION "8d 15-Jan-2012" - -#define JCOPYRIGHT "Copyright (C) 2012, Thomas G. Lane, Guido Vollbeding" diff --git a/jpg/libjpeg.map b/jpg/libjpeg.map deleted file mode 100644 index ac77dca..0000000 --- a/jpg/libjpeg.map +++ /dev/null @@ -1,4 +0,0 @@ -LIBJPEG_8.0 { - global: - *; -}; diff --git a/jpg/libjpeg.txt b/jpg/libjpeg.txt deleted file mode 100644 index 9702669..0000000 --- a/jpg/libjpeg.txt +++ /dev/null @@ -1,3085 +0,0 @@ -USING THE IJG JPEG LIBRARY - -Copyright (C) 1994-2011, Thomas G. Lane, Guido Vollbeding. -This file is part of the Independent JPEG Group's software. -For conditions of distribution and use, see the accompanying README file. - - -This file describes how to use the IJG JPEG library within an application -program. Read it if you want to write a program that uses the library. - -The file example.c provides heavily commented skeleton code for calling the -JPEG library. Also see jpeglib.h (the include file to be used by application -programs) for full details about data structures and function parameter lists. -The library source code, of course, is the ultimate reference. - -Note that there have been *major* changes from the application interface -presented by IJG version 4 and earlier versions. The old design had several -inherent limitations, and it had accumulated a lot of cruft as we added -features while trying to minimize application-interface changes. We have -sacrificed backward compatibility in the version 5 rewrite, but we think the -improvements justify this. - - -TABLE OF CONTENTS ------------------ - -Overview: - Functions provided by the library - Outline of typical usage -Basic library usage: - Data formats - Compression details - Decompression details - Mechanics of usage: include files, linking, etc -Advanced features: - Compression parameter selection - Decompression parameter selection - Special color spaces - Error handling - Compressed data handling (source and destination managers) - I/O suspension - Progressive JPEG support - Buffered-image mode - Abbreviated datastreams and multiple images - Special markers - Raw (downsampled) image data - Really raw data: DCT coefficients - Progress monitoring - Memory management - Memory usage - Library compile-time options - Portability considerations - Notes for MS-DOS implementors - -You should read at least the overview and basic usage sections before trying -to program with the library. The sections on advanced features can be read -if and when you need them. - - -OVERVIEW -======== - -Functions provided by the library ---------------------------------- - -The IJG JPEG library provides C code to read and write JPEG-compressed image -files. The surrounding application program receives or supplies image data a -scanline at a time, using a straightforward uncompressed image format. All -details of color conversion and other preprocessing/postprocessing can be -handled by the library. - -The library includes a substantial amount of code that is not covered by the -JPEG standard but is necessary for typical applications of JPEG. These -functions preprocess the image before JPEG compression or postprocess it after -decompression. They include colorspace conversion, downsampling/upsampling, -and color quantization. The application indirectly selects use of this code -by specifying the format in which it wishes to supply or receive image data. -For example, if colormapped output is requested, then the decompression -library automatically invokes color quantization. - -A wide range of quality vs. speed tradeoffs are possible in JPEG processing, -and even more so in decompression postprocessing. The decompression library -provides multiple implementations that cover most of the useful tradeoffs, -ranging from very-high-quality down to fast-preview operation. On the -compression side we have generally not provided low-quality choices, since -compression is normally less time-critical. It should be understood that the -low-quality modes may not meet the JPEG standard's accuracy requirements; -nonetheless, they are useful for viewers. - -A word about functions *not* provided by the library. We handle a subset of -the ISO JPEG standard; most baseline, extended-sequential, and progressive -JPEG processes are supported. (Our subset includes all features now in common -use.) Unsupported ISO options include: - * Hierarchical storage - * Lossless JPEG - * DNL marker - * Nonintegral subsampling ratios -We support both 8- and 12-bit data precision, but this is a compile-time -choice rather than a run-time choice; hence it is difficult to use both -precisions in a single application. - -By itself, the library handles only interchange JPEG datastreams --- in -particular the widely used JFIF file format. The library can be used by -surrounding code to process interchange or abbreviated JPEG datastreams that -are embedded in more complex file formats. (For example, this library is -used by the free LIBTIFF library to support JPEG compression in TIFF.) - - -Outline of typical usage ------------------------- - -The rough outline of a JPEG compression operation is: - - Allocate and initialize a JPEG compression object - Specify the destination for the compressed data (eg, a file) - Set parameters for compression, including image size & colorspace - jpeg_start_compress(...); - while (scan lines remain to be written) - jpeg_write_scanlines(...); - jpeg_finish_compress(...); - Release the JPEG compression object - -A JPEG compression object holds parameters and working state for the JPEG -library. We make creation/destruction of the object separate from starting -or finishing compression of an image; the same object can be re-used for a -series of image compression operations. This makes it easy to re-use the -same parameter settings for a sequence of images. Re-use of a JPEG object -also has important implications for processing abbreviated JPEG datastreams, -as discussed later. - -The image data to be compressed is supplied to jpeg_write_scanlines() from -in-memory buffers. If the application is doing file-to-file compression, -reading image data from the source file is the application's responsibility. -The library emits compressed data by calling a "data destination manager", -which typically will write the data into a file; but the application can -provide its own destination manager to do something else. - -Similarly, the rough outline of a JPEG decompression operation is: - - Allocate and initialize a JPEG decompression object - Specify the source of the compressed data (eg, a file) - Call jpeg_read_header() to obtain image info - Set parameters for decompression - jpeg_start_decompress(...); - while (scan lines remain to be read) - jpeg_read_scanlines(...); - jpeg_finish_decompress(...); - Release the JPEG decompression object - -This is comparable to the compression outline except that reading the -datastream header is a separate step. This is helpful because information -about the image's size, colorspace, etc is available when the application -selects decompression parameters. For example, the application can choose an -output scaling ratio that will fit the image into the available screen size. - -The decompression library obtains compressed data by calling a data source -manager, which typically will read the data from a file; but other behaviors -can be obtained with a custom source manager. Decompressed data is delivered -into in-memory buffers passed to jpeg_read_scanlines(). - -It is possible to abort an incomplete compression or decompression operation -by calling jpeg_abort(); or, if you do not need to retain the JPEG object, -simply release it by calling jpeg_destroy(). - -JPEG compression and decompression objects are two separate struct types. -However, they share some common fields, and certain routines such as -jpeg_destroy() can work on either type of object. - -The JPEG library has no static variables: all state is in the compression -or decompression object. Therefore it is possible to process multiple -compression and decompression operations concurrently, using multiple JPEG -objects. - -Both compression and decompression can be done in an incremental memory-to- -memory fashion, if suitable source/destination managers are used. See the -section on "I/O suspension" for more details. - - -BASIC LIBRARY USAGE -=================== - -Data formats ------------- - -Before diving into procedural details, it is helpful to understand the -image data format that the JPEG library expects or returns. - -The standard input image format is a rectangular array of pixels, with each -pixel having the same number of "component" or "sample" values (color -channels). You must specify how many components there are and the colorspace -interpretation of the components. Most applications will use RGB data -(three components per pixel) or grayscale data (one component per pixel). -PLEASE NOTE THAT RGB DATA IS THREE SAMPLES PER PIXEL, GRAYSCALE ONLY ONE. -A remarkable number of people manage to miss this, only to find that their -programs don't work with grayscale JPEG files. - -There is no provision for colormapped input. JPEG files are always full-color -or full grayscale (or sometimes another colorspace such as CMYK). You can -feed in a colormapped image by expanding it to full-color format. However -JPEG often doesn't work very well with source data that has been colormapped, -because of dithering noise. This is discussed in more detail in the JPEG FAQ -and the other references mentioned in the README file. - -Pixels are stored by scanlines, with each scanline running from left to -right. The component values for each pixel are adjacent in the row; for -example, R,G,B,R,G,B,R,G,B,... for 24-bit RGB color. Each scanline is an -array of data type JSAMPLE --- which is typically "unsigned char", unless -you've changed jmorecfg.h. (You can also change the RGB pixel layout, say -to B,G,R order, by modifying jmorecfg.h. But see the restrictions listed in -that file before doing so.) - -A 2-D array of pixels is formed by making a list of pointers to the starts of -scanlines; so the scanlines need not be physically adjacent in memory. Even -if you process just one scanline at a time, you must make a one-element -pointer array to conform to this structure. Pointers to JSAMPLE rows are of -type JSAMPROW, and the pointer to the pointer array is of type JSAMPARRAY. - -The library accepts or supplies one or more complete scanlines per call. -It is not possible to process part of a row at a time. Scanlines are always -processed top-to-bottom. You can process an entire image in one call if you -have it all in memory, but usually it's simplest to process one scanline at -a time. - -For best results, source data values should have the precision specified by -BITS_IN_JSAMPLE (normally 8 bits). For instance, if you choose to compress -data that's only 6 bits/channel, you should left-justify each value in a -byte before passing it to the compressor. If you need to compress data -that has more than 8 bits/channel, compile with BITS_IN_JSAMPLE = 12. -(See "Library compile-time options", later.) - - -The data format returned by the decompressor is the same in all details, -except that colormapped output is supported. (Again, a JPEG file is never -colormapped. But you can ask the decompressor to perform on-the-fly color -quantization to deliver colormapped output.) If you request colormapped -output then the returned data array contains a single JSAMPLE per pixel; -its value is an index into a color map. The color map is represented as -a 2-D JSAMPARRAY in which each row holds the values of one color component, -that is, colormap[i][j] is the value of the i'th color component for pixel -value (map index) j. Note that since the colormap indexes are stored in -JSAMPLEs, the maximum number of colors is limited by the size of JSAMPLE -(ie, at most 256 colors for an 8-bit JPEG library). - - -Compression details -------------------- - -Here we revisit the JPEG compression outline given in the overview. - -1. Allocate and initialize a JPEG compression object. - -A JPEG compression object is a "struct jpeg_compress_struct". (It also has -a bunch of subsidiary structures which are allocated via malloc(), but the -application doesn't control those directly.) This struct can be just a local -variable in the calling routine, if a single routine is going to execute the -whole JPEG compression sequence. Otherwise it can be static or allocated -from malloc(). - -You will also need a structure representing a JPEG error handler. The part -of this that the library cares about is a "struct jpeg_error_mgr". If you -are providing your own error handler, you'll typically want to embed the -jpeg_error_mgr struct in a larger structure; this is discussed later under -"Error handling". For now we'll assume you are just using the default error -handler. The default error handler will print JPEG error/warning messages -on stderr, and it will call exit() if a fatal error occurs. - -You must initialize the error handler structure, store a pointer to it into -the JPEG object's "err" field, and then call jpeg_create_compress() to -initialize the rest of the JPEG object. - -Typical code for this step, if you are using the default error handler, is - - struct jpeg_compress_struct cinfo; - struct jpeg_error_mgr jerr; - ... - cinfo.err = jpeg_std_error(&jerr); - jpeg_create_compress(&cinfo); - -jpeg_create_compress allocates a small amount of memory, so it could fail -if you are out of memory. In that case it will exit via the error handler; -that's why the error handler must be initialized first. - - -2. Specify the destination for the compressed data (eg, a file). - -As previously mentioned, the JPEG library delivers compressed data to a -"data destination" module. The library includes one data destination -module which knows how to write to a stdio stream. You can use your own -destination module if you want to do something else, as discussed later. - -If you use the standard destination module, you must open the target stdio -stream beforehand. Typical code for this step looks like: - - FILE * outfile; - ... - if ((outfile = fopen(filename, "wb")) == NULL) { - fprintf(stderr, "can't open %s\n", filename); - exit(1); - } - jpeg_stdio_dest(&cinfo, outfile); - -where the last line invokes the standard destination module. - -WARNING: it is critical that the binary compressed data be delivered to the -output file unchanged. On non-Unix systems the stdio library may perform -newline translation or otherwise corrupt binary data. To suppress this -behavior, you may need to use a "b" option to fopen (as shown above), or use -setmode() or another routine to put the stdio stream in binary mode. See -cjpeg.c and djpeg.c for code that has been found to work on many systems. - -You can select the data destination after setting other parameters (step 3), -if that's more convenient. You may not change the destination between -calling jpeg_start_compress() and jpeg_finish_compress(). - - -3. Set parameters for compression, including image size & colorspace. - -You must supply information about the source image by setting the following -fields in the JPEG object (cinfo structure): - - image_width Width of image, in pixels - image_height Height of image, in pixels - input_components Number of color channels (samples per pixel) - in_color_space Color space of source image - -The image dimensions are, hopefully, obvious. JPEG supports image dimensions -of 1 to 64K pixels in either direction. The input color space is typically -RGB or grayscale, and input_components is 3 or 1 accordingly. (See "Special -color spaces", later, for more info.) The in_color_space field must be -assigned one of the J_COLOR_SPACE enum constants, typically JCS_RGB or -JCS_GRAYSCALE. - -JPEG has a large number of compression parameters that determine how the -image is encoded. Most applications don't need or want to know about all -these parameters. You can set all the parameters to reasonable defaults by -calling jpeg_set_defaults(); then, if there are particular values you want -to change, you can do so after that. The "Compression parameter selection" -section tells about all the parameters. - -You must set in_color_space correctly before calling jpeg_set_defaults(), -because the defaults depend on the source image colorspace. However the -other three source image parameters need not be valid until you call -jpeg_start_compress(). There's no harm in calling jpeg_set_defaults() more -than once, if that happens to be convenient. - -Typical code for a 24-bit RGB source image is - - cinfo.image_width = Width; /* image width and height, in pixels */ - cinfo.image_height = Height; - cinfo.input_components = 3; /* # of color components per pixel */ - cinfo.in_color_space = JCS_RGB; /* colorspace of input image */ - - jpeg_set_defaults(&cinfo); - /* Make optional parameter settings here */ - - -4. jpeg_start_compress(...); - -After you have established the data destination and set all the necessary -source image info and other parameters, call jpeg_start_compress() to begin -a compression cycle. This will initialize internal state, allocate working -storage, and emit the first few bytes of the JPEG datastream header. - -Typical code: - - jpeg_start_compress(&cinfo, TRUE); - -The "TRUE" parameter ensures that a complete JPEG interchange datastream -will be written. This is appropriate in most cases. If you think you might -want to use an abbreviated datastream, read the section on abbreviated -datastreams, below. - -Once you have called jpeg_start_compress(), you may not alter any JPEG -parameters or other fields of the JPEG object until you have completed -the compression cycle. - - -5. while (scan lines remain to be written) - jpeg_write_scanlines(...); - -Now write all the required image data by calling jpeg_write_scanlines() -one or more times. You can pass one or more scanlines in each call, up -to the total image height. In most applications it is convenient to pass -just one or a few scanlines at a time. The expected format for the passed -data is discussed under "Data formats", above. - -Image data should be written in top-to-bottom scanline order. The JPEG spec -contains some weasel wording about how top and bottom are application-defined -terms (a curious interpretation of the English language...) but if you want -your files to be compatible with everyone else's, you WILL use top-to-bottom -order. If the source data must be read in bottom-to-top order, you can use -the JPEG library's virtual array mechanism to invert the data efficiently. -Examples of this can be found in the sample application cjpeg. - -The library maintains a count of the number of scanlines written so far -in the next_scanline field of the JPEG object. Usually you can just use -this variable as the loop counter, so that the loop test looks like -"while (cinfo.next_scanline < cinfo.image_height)". - -Code for this step depends heavily on the way that you store the source data. -example.c shows the following code for the case of a full-size 2-D source -array containing 3-byte RGB pixels: - - JSAMPROW row_pointer[1]; /* pointer to a single row */ - int row_stride; /* physical row width in buffer */ - - row_stride = image_width * 3; /* JSAMPLEs per row in image_buffer */ - - while (cinfo.next_scanline < cinfo.image_height) { - row_pointer[0] = & image_buffer[cinfo.next_scanline * row_stride]; - jpeg_write_scanlines(&cinfo, row_pointer, 1); - } - -jpeg_write_scanlines() returns the number of scanlines actually written. -This will normally be equal to the number passed in, so you can usually -ignore the return value. It is different in just two cases: - * If you try to write more scanlines than the declared image height, - the additional scanlines are ignored. - * If you use a suspending data destination manager, output buffer overrun - will cause the compressor to return before accepting all the passed lines. - This feature is discussed under "I/O suspension", below. The normal - stdio destination manager will NOT cause this to happen. -In any case, the return value is the same as the change in the value of -next_scanline. - - -6. jpeg_finish_compress(...); - -After all the image data has been written, call jpeg_finish_compress() to -complete the compression cycle. This step is ESSENTIAL to ensure that the -last bufferload of data is written to the data destination. -jpeg_finish_compress() also releases working memory associated with the JPEG -object. - -Typical code: - - jpeg_finish_compress(&cinfo); - -If using the stdio destination manager, don't forget to close the output -stdio stream (if necessary) afterwards. - -If you have requested a multi-pass operating mode, such as Huffman code -optimization, jpeg_finish_compress() will perform the additional passes using -data buffered by the first pass. In this case jpeg_finish_compress() may take -quite a while to complete. With the default compression parameters, this will -not happen. - -It is an error to call jpeg_finish_compress() before writing the necessary -total number of scanlines. If you wish to abort compression, call -jpeg_abort() as discussed below. - -After completing a compression cycle, you may dispose of the JPEG object -as discussed next, or you may use it to compress another image. In that case -return to step 2, 3, or 4 as appropriate. If you do not change the -destination manager, the new datastream will be written to the same target. -If you do not change any JPEG parameters, the new datastream will be written -with the same parameters as before. Note that you can change the input image -dimensions freely between cycles, but if you change the input colorspace, you -should call jpeg_set_defaults() to adjust for the new colorspace; and then -you'll need to repeat all of step 3. - - -7. Release the JPEG compression object. - -When you are done with a JPEG compression object, destroy it by calling -jpeg_destroy_compress(). This will free all subsidiary memory (regardless of -the previous state of the object). Or you can call jpeg_destroy(), which -works for either compression or decompression objects --- this may be more -convenient if you are sharing code between compression and decompression -cases. (Actually, these routines are equivalent except for the declared type -of the passed pointer. To avoid gripes from ANSI C compilers, jpeg_destroy() -should be passed a j_common_ptr.) - -If you allocated the jpeg_compress_struct structure from malloc(), freeing -it is your responsibility --- jpeg_destroy() won't. Ditto for the error -handler structure. - -Typical code: - - jpeg_destroy_compress(&cinfo); - - -8. Aborting. - -If you decide to abort a compression cycle before finishing, you can clean up -in either of two ways: - -* If you don't need the JPEG object any more, just call - jpeg_destroy_compress() or jpeg_destroy() to release memory. This is - legitimate at any point after calling jpeg_create_compress() --- in fact, - it's safe even if jpeg_create_compress() fails. - -* If you want to re-use the JPEG object, call jpeg_abort_compress(), or call - jpeg_abort() which works on both compression and decompression objects. - This will return the object to an idle state, releasing any working memory. - jpeg_abort() is allowed at any time after successful object creation. - -Note that cleaning up the data destination, if required, is your -responsibility; neither of these routines will call term_destination(). -(See "Compressed data handling", below, for more about that.) - -jpeg_destroy() and jpeg_abort() are the only safe calls to make on a JPEG -object that has reported an error by calling error_exit (see "Error handling" -for more info). The internal state of such an object is likely to be out of -whack. Either of these two routines will return the object to a known state. - - -Decompression details ---------------------- - -Here we revisit the JPEG decompression outline given in the overview. - -1. Allocate and initialize a JPEG decompression object. - -This is just like initialization for compression, as discussed above, -except that the object is a "struct jpeg_decompress_struct" and you -call jpeg_create_decompress(). Error handling is exactly the same. - -Typical code: - - struct jpeg_decompress_struct cinfo; - struct jpeg_error_mgr jerr; - ... - cinfo.err = jpeg_std_error(&jerr); - jpeg_create_decompress(&cinfo); - -(Both here and in the IJG code, we usually use variable name "cinfo" for -both compression and decompression objects.) - - -2. Specify the source of the compressed data (eg, a file). - -As previously mentioned, the JPEG library reads compressed data from a "data -source" module. The library includes one data source module which knows how -to read from a stdio stream. You can use your own source module if you want -to do something else, as discussed later. - -If you use the standard source module, you must open the source stdio stream -beforehand. Typical code for this step looks like: - - FILE * infile; - ... - if ((infile = fopen(filename, "rb")) == NULL) { - fprintf(stderr, "can't open %s\n", filename); - exit(1); - } - jpeg_stdio_src(&cinfo, infile); - -where the last line invokes the standard source module. - -WARNING: it is critical that the binary compressed data be read unchanged. -On non-Unix systems the stdio library may perform newline translation or -otherwise corrupt binary data. To suppress this behavior, you may need to use -a "b" option to fopen (as shown above), or use setmode() or another routine to -put the stdio stream in binary mode. See cjpeg.c and djpeg.c for code that -has been found to work on many systems. - -You may not change the data source between calling jpeg_read_header() and -jpeg_finish_decompress(). If you wish to read a series of JPEG images from -a single source file, you should repeat the jpeg_read_header() to -jpeg_finish_decompress() sequence without reinitializing either the JPEG -object or the data source module; this prevents buffered input data from -being discarded. - - -3. Call jpeg_read_header() to obtain image info. - -Typical code for this step is just - - jpeg_read_header(&cinfo, TRUE); - -This will read the source datastream header markers, up to the beginning -of the compressed data proper. On return, the image dimensions and other -info have been stored in the JPEG object. The application may wish to -consult this information before selecting decompression parameters. - -More complex code is necessary if - * A suspending data source is used --- in that case jpeg_read_header() - may return before it has read all the header data. See "I/O suspension", - below. The normal stdio source manager will NOT cause this to happen. - * Abbreviated JPEG files are to be processed --- see the section on - abbreviated datastreams. Standard applications that deal only in - interchange JPEG files need not be concerned with this case either. - -It is permissible to stop at this point if you just wanted to find out the -image dimensions and other header info for a JPEG file. In that case, -call jpeg_destroy() when you are done with the JPEG object, or call -jpeg_abort() to return it to an idle state before selecting a new data -source and reading another header. - - -4. Set parameters for decompression. - -jpeg_read_header() sets appropriate default decompression parameters based on -the properties of the image (in particular, its colorspace). However, you -may well want to alter these defaults before beginning the decompression. -For example, the default is to produce full color output from a color file. -If you want colormapped output you must ask for it. Other options allow the -returned image to be scaled and allow various speed/quality tradeoffs to be -selected. "Decompression parameter selection", below, gives details. - -If the defaults are appropriate, nothing need be done at this step. - -Note that all default values are set by each call to jpeg_read_header(). -If you reuse a decompression object, you cannot expect your parameter -settings to be preserved across cycles, as you can for compression. -You must set desired parameter values each time. - - -5. jpeg_start_decompress(...); - -Once the parameter values are satisfactory, call jpeg_start_decompress() to -begin decompression. This will initialize internal state, allocate working -memory, and prepare for returning data. - -Typical code is just - - jpeg_start_decompress(&cinfo); - -If you have requested a multi-pass operating mode, such as 2-pass color -quantization, jpeg_start_decompress() will do everything needed before data -output can begin. In this case jpeg_start_decompress() may take quite a while -to complete. With a single-scan (non progressive) JPEG file and default -decompression parameters, this will not happen; jpeg_start_decompress() will -return quickly. - -After this call, the final output image dimensions, including any requested -scaling, are available in the JPEG object; so is the selected colormap, if -colormapped output has been requested. Useful fields include - - output_width image width and height, as scaled - output_height - out_color_components # of color components in out_color_space - output_components # of color components returned per pixel - colormap the selected colormap, if any - actual_number_of_colors number of entries in colormap - -output_components is 1 (a colormap index) when quantizing colors; otherwise it -equals out_color_components. It is the number of JSAMPLE values that will be -emitted per pixel in the output arrays. - -Typically you will need to allocate data buffers to hold the incoming image. -You will need output_width * output_components JSAMPLEs per scanline in your -output buffer, and a total of output_height scanlines will be returned. - -Note: if you are using the JPEG library's internal memory manager to allocate -data buffers (as djpeg does), then the manager's protocol requires that you -request large buffers *before* calling jpeg_start_decompress(). This is a -little tricky since the output_XXX fields are not normally valid then. You -can make them valid by calling jpeg_calc_output_dimensions() after setting the -relevant parameters (scaling, output color space, and quantization flag). - - -6. while (scan lines remain to be read) - jpeg_read_scanlines(...); - -Now you can read the decompressed image data by calling jpeg_read_scanlines() -one or more times. At each call, you pass in the maximum number of scanlines -to be read (ie, the height of your working buffer); jpeg_read_scanlines() -will return up to that many lines. The return value is the number of lines -actually read. The format of the returned data is discussed under "Data -formats", above. Don't forget that grayscale and color JPEGs will return -different data formats! - -Image data is returned in top-to-bottom scanline order. If you must write -out the image in bottom-to-top order, you can use the JPEG library's virtual -array mechanism to invert the data efficiently. Examples of this can be -found in the sample application djpeg. - -The library maintains a count of the number of scanlines returned so far -in the output_scanline field of the JPEG object. Usually you can just use -this variable as the loop counter, so that the loop test looks like -"while (cinfo.output_scanline < cinfo.output_height)". (Note that the test -should NOT be against image_height, unless you never use scaling. The -image_height field is the height of the original unscaled image.) -The return value always equals the change in the value of output_scanline. - -If you don't use a suspending data source, it is safe to assume that -jpeg_read_scanlines() reads at least one scanline per call, until the -bottom of the image has been reached. - -If you use a buffer larger than one scanline, it is NOT safe to assume that -jpeg_read_scanlines() fills it. (The current implementation returns only a -few scanlines per call, no matter how large a buffer you pass.) So you must -always provide a loop that calls jpeg_read_scanlines() repeatedly until the -whole image has been read. - - -7. jpeg_finish_decompress(...); - -After all the image data has been read, call jpeg_finish_decompress() to -complete the decompression cycle. This causes working memory associated -with the JPEG object to be released. - -Typical code: - - jpeg_finish_decompress(&cinfo); - -If using the stdio source manager, don't forget to close the source stdio -stream if necessary. - -It is an error to call jpeg_finish_decompress() before reading the correct -total number of scanlines. If you wish to abort decompression, call -jpeg_abort() as discussed below. - -After completing a decompression cycle, you may dispose of the JPEG object as -discussed next, or you may use it to decompress another image. In that case -return to step 2 or 3 as appropriate. If you do not change the source -manager, the next image will be read from the same source. - - -8. Release the JPEG decompression object. - -When you are done with a JPEG decompression object, destroy it by calling -jpeg_destroy_decompress() or jpeg_destroy(). The previous discussion of -destroying compression objects applies here too. - -Typical code: - - jpeg_destroy_decompress(&cinfo); - - -9. Aborting. - -You can abort a decompression cycle by calling jpeg_destroy_decompress() or -jpeg_destroy() if you don't need the JPEG object any more, or -jpeg_abort_decompress() or jpeg_abort() if you want to reuse the object. -The previous discussion of aborting compression cycles applies here too. - - -Mechanics of usage: include files, linking, etc ------------------------------------------------ - -Applications using the JPEG library should include the header file jpeglib.h -to obtain declarations of data types and routines. Before including -jpeglib.h, include system headers that define at least the typedefs FILE and -size_t. On ANSI-conforming systems, including is sufficient; on -older Unix systems, you may need to define size_t. - -If the application needs to refer to individual JPEG library error codes, also -include jerror.h to define those symbols. - -jpeglib.h indirectly includes the files jconfig.h and jmorecfg.h. If you are -installing the JPEG header files in a system directory, you will want to -install all four files: jpeglib.h, jerror.h, jconfig.h, jmorecfg.h. - -The most convenient way to include the JPEG code into your executable program -is to prepare a library file ("libjpeg.a", or a corresponding name on non-Unix -machines) and reference it at your link step. If you use only half of the -library (only compression or only decompression), only that much code will be -included from the library, unless your linker is hopelessly brain-damaged. -The supplied makefiles build libjpeg.a automatically (see install.txt). - -While you can build the JPEG library as a shared library if the whim strikes -you, we don't really recommend it. The trouble with shared libraries is that -at some point you'll probably try to substitute a new version of the library -without recompiling the calling applications. That generally doesn't work -because the parameter struct declarations usually change with each new -version. In other words, the library's API is *not* guaranteed binary -compatible across versions; we only try to ensure source-code compatibility. -(In hindsight, it might have been smarter to hide the parameter structs from -applications and introduce a ton of access functions instead. Too late now, -however.) - -On some systems your application may need to set up a signal handler to ensure -that temporary files are deleted if the program is interrupted. This is most -critical if you are on MS-DOS and use the jmemdos.c memory manager back end; -it will try to grab extended memory for temp files, and that space will NOT be -freed automatically. See cjpeg.c or djpeg.c for an example signal handler. - -It may be worth pointing out that the core JPEG library does not actually -require the stdio library: only the default source/destination managers and -error handler need it. You can use the library in a stdio-less environment -if you replace those modules and use jmemnobs.c (or another memory manager of -your own devising). More info about the minimum system library requirements -may be found in jinclude.h. - - -ADVANCED FEATURES -================= - -Compression parameter selection -------------------------------- - -This section describes all the optional parameters you can set for JPEG -compression, as well as the "helper" routines provided to assist in this -task. Proper setting of some parameters requires detailed understanding -of the JPEG standard; if you don't know what a parameter is for, it's best -not to mess with it! See REFERENCES in the README file for pointers to -more info about JPEG. - -It's a good idea to call jpeg_set_defaults() first, even if you plan to set -all the parameters; that way your code is more likely to work with future JPEG -libraries that have additional parameters. For the same reason, we recommend -you use a helper routine where one is provided, in preference to twiddling -cinfo fields directly. - -The helper routines are: - -jpeg_set_defaults (j_compress_ptr cinfo) - This routine sets all JPEG parameters to reasonable defaults, using - only the input image's color space (field in_color_space, which must - already be set in cinfo). Many applications will only need to use - this routine and perhaps jpeg_set_quality(). - -jpeg_set_colorspace (j_compress_ptr cinfo, J_COLOR_SPACE colorspace) - Sets the JPEG file's colorspace (field jpeg_color_space) as specified, - and sets other color-space-dependent parameters appropriately. See - "Special color spaces", below, before using this. A large number of - parameters, including all per-component parameters, are set by this - routine; if you want to twiddle individual parameters you should call - jpeg_set_colorspace() before rather than after. - -jpeg_default_colorspace (j_compress_ptr cinfo) - Selects an appropriate JPEG colorspace based on cinfo->in_color_space, - and calls jpeg_set_colorspace(). This is actually a subroutine of - jpeg_set_defaults(). It's broken out in case you want to change - just the colorspace-dependent JPEG parameters. - -jpeg_set_quality (j_compress_ptr cinfo, int quality, boolean force_baseline) - Constructs JPEG quantization tables appropriate for the indicated - quality setting. The quality value is expressed on the 0..100 scale - recommended by IJG (cjpeg's "-quality" switch uses this routine). - Note that the exact mapping from quality values to tables may change - in future IJG releases as more is learned about DCT quantization. - If the force_baseline parameter is TRUE, then the quantization table - entries are constrained to the range 1..255 for full JPEG baseline - compatibility. In the current implementation, this only makes a - difference for quality settings below 25, and it effectively prevents - very small/low quality files from being generated. The IJG decoder - is capable of reading the non-baseline files generated at low quality - settings when force_baseline is FALSE, but other decoders may not be. - -jpeg_set_linear_quality (j_compress_ptr cinfo, int scale_factor, - boolean force_baseline) - Same as jpeg_set_quality() except that the generated tables are the - sample tables given in the JPEC spec section K.1, multiplied by the - specified scale factor (which is expressed as a percentage; thus - scale_factor = 100 reproduces the spec's tables). Note that larger - scale factors give lower quality. This entry point is useful for - conforming to the Adobe PostScript DCT conventions, but we do not - recommend linear scaling as a user-visible quality scale otherwise. - force_baseline again constrains the computed table entries to 1..255. - -int jpeg_quality_scaling (int quality) - Converts a value on the IJG-recommended quality scale to a linear - scaling percentage. Note that this routine may change or go away - in future releases --- IJG may choose to adopt a scaling method that - can't be expressed as a simple scalar multiplier, in which case the - premise of this routine collapses. Caveat user. - -jpeg_default_qtables (j_compress_ptr cinfo, boolean force_baseline) - Set default quantization tables with linear q_scale_factor[] values - (see below). - -jpeg_add_quant_table (j_compress_ptr cinfo, int which_tbl, - const unsigned int *basic_table, - int scale_factor, boolean force_baseline) - Allows an arbitrary quantization table to be created. which_tbl - indicates which table slot to fill. basic_table points to an array - of 64 unsigned ints given in normal array order. These values are - multiplied by scale_factor/100 and then clamped to the range 1..65535 - (or to 1..255 if force_baseline is TRUE). - CAUTION: prior to library version 6a, jpeg_add_quant_table expected - the basic table to be given in JPEG zigzag order. If you need to - write code that works with either older or newer versions of this - routine, you must check the library version number. Something like - "#if JPEG_LIB_VERSION >= 61" is the right test. - -jpeg_simple_progression (j_compress_ptr cinfo) - Generates a default scan script for writing a progressive-JPEG file. - This is the recommended method of creating a progressive file, - unless you want to make a custom scan sequence. You must ensure that - the JPEG color space is set correctly before calling this routine. - - -Compression parameters (cinfo fields) include: - -int block_size - Set DCT block size. All N from 1 to 16 are possible. - Default is 8 (baseline format). - Larger values produce higher compression, - smaller values produce higher quality. - An exact DCT stage is possible with 1 or 2. - With the default quality of 75 and default Luminance qtable - the DCT+Quantization stage is lossless for value 1. - Note that values other than 8 require a SmartScale capable decoder, - introduced with IJG JPEG 8. Setting the block_size parameter for - compression works with version 8c and later. - -J_DCT_METHOD dct_method - Selects the algorithm used for the DCT step. Choices are: - JDCT_ISLOW: slow but accurate integer algorithm - JDCT_IFAST: faster, less accurate integer method - JDCT_FLOAT: floating-point method - JDCT_DEFAULT: default method (normally JDCT_ISLOW) - JDCT_FASTEST: fastest method (normally JDCT_IFAST) - The FLOAT method is very slightly more accurate than the ISLOW method, - but may give different results on different machines due to varying - roundoff behavior. The integer methods should give the same results - on all machines. On machines with sufficiently fast FP hardware, the - floating-point method may also be the fastest. The IFAST method is - considerably less accurate than the other two; its use is not - recommended if high quality is a concern. JDCT_DEFAULT and - JDCT_FASTEST are macros configurable by each installation. - -unsigned int scale_num, scale_denom - Scale the image by the fraction scale_num/scale_denom. Default is - 1/1, or no scaling. Currently, the supported scaling ratios are - M/N with all N from 1 to 16, where M is the destination DCT size, - which is 8 by default (see block_size parameter above). - (The library design allows for arbitrary scaling ratios but this - is not likely to be implemented any time soon.) - -J_COLOR_SPACE jpeg_color_space -int num_components - The JPEG color space and corresponding number of components; see - "Special color spaces", below, for more info. We recommend using - jpeg_set_color_space() if you want to change these. - -boolean optimize_coding - TRUE causes the compressor to compute optimal Huffman coding tables - for the image. This requires an extra pass over the data and - therefore costs a good deal of space and time. The default is - FALSE, which tells the compressor to use the supplied or default - Huffman tables. In most cases optimal tables save only a few percent - of file size compared to the default tables. Note that when this is - TRUE, you need not supply Huffman tables at all, and any you do - supply will be overwritten. - -unsigned int restart_interval -int restart_in_rows - To emit restart markers in the JPEG file, set one of these nonzero. - Set restart_interval to specify the exact interval in MCU blocks. - Set restart_in_rows to specify the interval in MCU rows. (If - restart_in_rows is not 0, then restart_interval is set after the - image width in MCUs is computed.) Defaults are zero (no restarts). - One restart marker per MCU row is often a good choice. - NOTE: the overhead of restart markers is higher in grayscale JPEG - files than in color files, and MUCH higher in progressive JPEGs. - If you use restarts, you may want to use larger intervals in those - cases. - -const jpeg_scan_info * scan_info -int num_scans - By default, scan_info is NULL; this causes the compressor to write a - single-scan sequential JPEG file. If not NULL, scan_info points to - an array of scan definition records of length num_scans. The - compressor will then write a JPEG file having one scan for each scan - definition record. This is used to generate noninterleaved or - progressive JPEG files. The library checks that the scan array - defines a valid JPEG scan sequence. (jpeg_simple_progression creates - a suitable scan definition array for progressive JPEG.) This is - discussed further under "Progressive JPEG support". - -boolean do_fancy_downsampling - If TRUE, use direct DCT scaling with DCT size > 8 for downsampling - of chroma components. - If FALSE, use only DCT size <= 8 and simple separate downsampling. - Default is TRUE. - For better image stability in multiple generation compression cycles - it is preferable that this value matches the corresponding - do_fancy_upsampling value in decompression. - -int smoothing_factor - If non-zero, the input image is smoothed; the value should be 1 for - minimal smoothing to 100 for maximum smoothing. Consult jcsample.c - for details of the smoothing algorithm. The default is zero. - -boolean write_JFIF_header - If TRUE, a JFIF APP0 marker is emitted. jpeg_set_defaults() and - jpeg_set_colorspace() set this TRUE if a JFIF-legal JPEG color space - (ie, YCbCr or grayscale) is selected, otherwise FALSE. - -UINT8 JFIF_major_version -UINT8 JFIF_minor_version - The version number to be written into the JFIF marker. - jpeg_set_defaults() initializes the version to 1.01 (major=minor=1). - You should set it to 1.02 (major=1, minor=2) if you plan to write - any JFIF 1.02 extension markers. - -UINT8 density_unit -UINT16 X_density -UINT16 Y_density - The resolution information to be written into the JFIF marker; - not used otherwise. density_unit may be 0 for unknown, - 1 for dots/inch, or 2 for dots/cm. The default values are 0,1,1 - indicating square pixels of unknown size. - -boolean write_Adobe_marker - If TRUE, an Adobe APP14 marker is emitted. jpeg_set_defaults() and - jpeg_set_colorspace() set this TRUE if JPEG color space RGB, CMYK, - or YCCK is selected, otherwise FALSE. It is generally a bad idea - to set both write_JFIF_header and write_Adobe_marker. In fact, - you probably shouldn't change the default settings at all --- the - default behavior ensures that the JPEG file's color space can be - recognized by the decoder. - -JQUANT_TBL * quant_tbl_ptrs[NUM_QUANT_TBLS] - Pointers to coefficient quantization tables, one per table slot, - or NULL if no table is defined for a slot. Usually these should - be set via one of the above helper routines; jpeg_add_quant_table() - is general enough to define any quantization table. The other - routines will set up table slot 0 for luminance quality and table - slot 1 for chrominance. - -int q_scale_factor[NUM_QUANT_TBLS] - Linear quantization scaling factors (percentage, initialized 100) - for use with jpeg_default_qtables(). - See rdswitch.c and cjpeg.c for an example of usage. - Note that the q_scale_factor[] fields are the "linear" scales, so you - have to convert from user-defined ratings via jpeg_quality_scaling(). - Here is an example code which corresponds to cjpeg -quality 90,70: - - jpeg_set_defaults(cinfo); - - /* Set luminance quality 90. */ - cinfo->q_scale_factor[0] = jpeg_quality_scaling(90); - /* Set chrominance quality 70. */ - cinfo->q_scale_factor[1] = jpeg_quality_scaling(70); - - jpeg_default_qtables(cinfo, force_baseline); - - CAUTION: You must also set 1x1 subsampling for efficient separate - color quality selection, since the default value used by library - is 2x2: - - cinfo->comp_info[0].v_samp_factor = 1; - cinfo->comp_info[0].h_samp_factor = 1; - -JHUFF_TBL * dc_huff_tbl_ptrs[NUM_HUFF_TBLS] -JHUFF_TBL * ac_huff_tbl_ptrs[NUM_HUFF_TBLS] - Pointers to Huffman coding tables, one per table slot, or NULL if - no table is defined for a slot. Slots 0 and 1 are filled with the - JPEG sample tables by jpeg_set_defaults(). If you need to allocate - more table structures, jpeg_alloc_huff_table() may be used. - Note that optimal Huffman tables can be computed for an image - by setting optimize_coding, as discussed above; there's seldom - any need to mess with providing your own Huffman tables. - - -The actual dimensions of the JPEG image that will be written to the file are -given by the following fields. These are computed from the input image -dimensions and the compression parameters by jpeg_start_compress(). You can -also call jpeg_calc_jpeg_dimensions() to obtain the values that will result -from the current parameter settings. This can be useful if you are trying -to pick a scaling ratio that will get close to a desired target size. - -JDIMENSION jpeg_width Actual dimensions of output image. -JDIMENSION jpeg_height - - -Per-component parameters are stored in the struct cinfo.comp_info[i] for -component number i. Note that components here refer to components of the -JPEG color space, *not* the source image color space. A suitably large -comp_info[] array is allocated by jpeg_set_defaults(); if you choose not -to use that routine, it's up to you to allocate the array. - -int component_id - The one-byte identifier code to be recorded in the JPEG file for - this component. For the standard color spaces, we recommend you - leave the default values alone. - -int h_samp_factor -int v_samp_factor - Horizontal and vertical sampling factors for the component; must - be 1..4 according to the JPEG standard. Note that larger sampling - factors indicate a higher-resolution component; many people find - this behavior quite unintuitive. The default values are 2,2 for - luminance components and 1,1 for chrominance components, except - for grayscale where 1,1 is used. - -int quant_tbl_no - Quantization table number for component. The default value is - 0 for luminance components and 1 for chrominance components. - -int dc_tbl_no -int ac_tbl_no - DC and AC entropy coding table numbers. The default values are - 0 for luminance components and 1 for chrominance components. - -int component_index - Must equal the component's index in comp_info[]. (Beginning in - release v6, the compressor library will fill this in automatically; - you don't have to.) - - -Decompression parameter selection ---------------------------------- - -Decompression parameter selection is somewhat simpler than compression -parameter selection, since all of the JPEG internal parameters are -recorded in the source file and need not be supplied by the application. -(Unless you are working with abbreviated files, in which case see -"Abbreviated datastreams", below.) Decompression parameters control -the postprocessing done on the image to deliver it in a format suitable -for the application's use. Many of the parameters control speed/quality -tradeoffs, in which faster decompression may be obtained at the price of -a poorer-quality image. The defaults select the highest quality (slowest) -processing. - -The following fields in the JPEG object are set by jpeg_read_header() and -may be useful to the application in choosing decompression parameters: - -JDIMENSION image_width Width and height of image -JDIMENSION image_height -int num_components Number of color components -J_COLOR_SPACE jpeg_color_space Colorspace of image -boolean saw_JFIF_marker TRUE if a JFIF APP0 marker was seen - UINT8 JFIF_major_version Version information from JFIF marker - UINT8 JFIF_minor_version - UINT8 density_unit Resolution data from JFIF marker - UINT16 X_density - UINT16 Y_density -boolean saw_Adobe_marker TRUE if an Adobe APP14 marker was seen - UINT8 Adobe_transform Color transform code from Adobe marker - -The JPEG color space, unfortunately, is something of a guess since the JPEG -standard proper does not provide a way to record it. In practice most files -adhere to the JFIF or Adobe conventions, and the decoder will recognize these -correctly. See "Special color spaces", below, for more info. - - -The decompression parameters that determine the basic properties of the -returned image are: - -J_COLOR_SPACE out_color_space - Output color space. jpeg_read_header() sets an appropriate default - based on jpeg_color_space; typically it will be RGB or grayscale. - The application can change this field to request output in a different - colorspace. For example, set it to JCS_GRAYSCALE to get grayscale - output from a color file. (This is useful for previewing: grayscale - output is faster than full color since the color components need not - be processed.) Note that not all possible color space transforms are - currently implemented; you may need to extend jdcolor.c if you want an - unusual conversion. - -unsigned int scale_num, scale_denom - Scale the image by the fraction scale_num/scale_denom. Currently, - the supported scaling ratios are M/N with all M from 1 to 16, where - N is the source DCT size, which is 8 for baseline JPEG. (The library - design allows for arbitrary scaling ratios but this is not likely - to be implemented any time soon.) The values are initialized by - jpeg_read_header() with the source DCT size. For baseline JPEG - this is 8/8. If you change only the scale_num value while leaving - the other unchanged, then this specifies the DCT scaled size to be - applied on the given input. For baseline JPEG this is equivalent - to M/8 scaling, since the source DCT size for baseline JPEG is 8. - Smaller scaling ratios permit significantly faster decoding since - fewer pixels need be processed and a simpler IDCT method can be used. - -boolean quantize_colors - If set TRUE, colormapped output will be delivered. Default is FALSE, - meaning that full-color output will be delivered. - -The next three parameters are relevant only if quantize_colors is TRUE. - -int desired_number_of_colors - Maximum number of colors to use in generating a library-supplied color - map (the actual number of colors is returned in a different field). - Default 256. Ignored when the application supplies its own color map. - -boolean two_pass_quantize - If TRUE, an extra pass over the image is made to select a custom color - map for the image. This usually looks a lot better than the one-size- - fits-all colormap that is used otherwise. Default is TRUE. Ignored - when the application supplies its own color map. - -J_DITHER_MODE dither_mode - Selects color dithering method. Supported values are: - JDITHER_NONE no dithering: fast, very low quality - JDITHER_ORDERED ordered dither: moderate speed and quality - JDITHER_FS Floyd-Steinberg dither: slow, high quality - Default is JDITHER_FS. (At present, ordered dither is implemented - only in the single-pass, standard-colormap case. If you ask for - ordered dither when two_pass_quantize is TRUE or when you supply - an external color map, you'll get F-S dithering.) - -When quantize_colors is TRUE, the target color map is described by the next -two fields. colormap is set to NULL by jpeg_read_header(). The application -can supply a color map by setting colormap non-NULL and setting -actual_number_of_colors to the map size. Otherwise, jpeg_start_decompress() -selects a suitable color map and sets these two fields itself. -[Implementation restriction: at present, an externally supplied colormap is -only accepted for 3-component output color spaces.] - -JSAMPARRAY colormap - The color map, represented as a 2-D pixel array of out_color_components - rows and actual_number_of_colors columns. Ignored if not quantizing. - CAUTION: if the JPEG library creates its own colormap, the storage - pointed to by this field is released by jpeg_finish_decompress(). - Copy the colormap somewhere else first, if you want to save it. - -int actual_number_of_colors - The number of colors in the color map. - -Additional decompression parameters that the application may set include: - -J_DCT_METHOD dct_method - Selects the algorithm used for the DCT step. Choices are the same - as described above for compression. - -boolean do_fancy_upsampling - If TRUE, use direct DCT scaling with DCT size > 8 for upsampling - of chroma components. - If FALSE, use only DCT size <= 8 and simple separate upsampling. - Default is TRUE. - For better image stability in multiple generation compression cycles - it is preferable that this value matches the corresponding - do_fancy_downsampling value in compression. - -boolean do_block_smoothing - If TRUE, interblock smoothing is applied in early stages of decoding - progressive JPEG files; if FALSE, not. Default is TRUE. Early - progression stages look "fuzzy" with smoothing, "blocky" without. - In any case, block smoothing ceases to be applied after the first few - AC coefficients are known to full accuracy, so it is relevant only - when using buffered-image mode for progressive images. - -boolean enable_1pass_quant -boolean enable_external_quant -boolean enable_2pass_quant - These are significant only in buffered-image mode, which is - described in its own section below. - - -The output image dimensions are given by the following fields. These are -computed from the source image dimensions and the decompression parameters -by jpeg_start_decompress(). You can also call jpeg_calc_output_dimensions() -to obtain the values that will result from the current parameter settings. -This can be useful if you are trying to pick a scaling ratio that will get -close to a desired target size. It's also important if you are using the -JPEG library's memory manager to allocate output buffer space, because you -are supposed to request such buffers *before* jpeg_start_decompress(). - -JDIMENSION output_width Actual dimensions of output image. -JDIMENSION output_height -int out_color_components Number of color components in out_color_space. -int output_components Number of color components returned. -int rec_outbuf_height Recommended height of scanline buffer. - -When quantizing colors, output_components is 1, indicating a single color map -index per pixel. Otherwise it equals out_color_components. The output arrays -are required to be output_width * output_components JSAMPLEs wide. - -rec_outbuf_height is the recommended minimum height (in scanlines) of the -buffer passed to jpeg_read_scanlines(). If the buffer is smaller, the -library will still work, but time will be wasted due to unnecessary data -copying. In high-quality modes, rec_outbuf_height is always 1, but some -faster, lower-quality modes set it to larger values (typically 2 to 4). -If you are going to ask for a high-speed processing mode, you may as well -go to the trouble of honoring rec_outbuf_height so as to avoid data copying. -(An output buffer larger than rec_outbuf_height lines is OK, but won't -provide any material speed improvement over that height.) - - -Special color spaces --------------------- - -The JPEG standard itself is "color blind" and doesn't specify any particular -color space. It is customary to convert color data to a luminance/chrominance -color space before compressing, since this permits greater compression. The -existing de-facto JPEG file format standards specify YCbCr or grayscale data -(JFIF), or grayscale, RGB, YCbCr, CMYK, or YCCK (Adobe). For special -applications such as multispectral images, other color spaces can be used, -but it must be understood that such files will be unportable. - -The JPEG library can handle the most common colorspace conversions (namely -RGB <=> YCbCr and CMYK <=> YCCK). It can also deal with data of an unknown -color space, passing it through without conversion. If you deal extensively -with an unusual color space, you can easily extend the library to understand -additional color spaces and perform appropriate conversions. - -For compression, the source data's color space is specified by field -in_color_space. This is transformed to the JPEG file's color space given -by jpeg_color_space. jpeg_set_defaults() chooses a reasonable JPEG color -space depending on in_color_space, but you can override this by calling -jpeg_set_colorspace(). Of course you must select a supported transformation. -jccolor.c currently supports the following transformations: - RGB => YCbCr - RGB => GRAYSCALE - YCbCr => GRAYSCALE - CMYK => YCCK -plus the null transforms: GRAYSCALE => GRAYSCALE, RGB => RGB, -YCbCr => YCbCr, CMYK => CMYK, YCCK => YCCK, and UNKNOWN => UNKNOWN. - -The de-facto file format standards (JFIF and Adobe) specify APPn markers that -indicate the color space of the JPEG file. It is important to ensure that -these are written correctly, or omitted if the JPEG file's color space is not -one of the ones supported by the de-facto standards. jpeg_set_colorspace() -will set the compression parameters to include or omit the APPn markers -properly, so long as it is told the truth about the JPEG color space. -For example, if you are writing some random 3-component color space without -conversion, don't try to fake out the library by setting in_color_space and -jpeg_color_space to JCS_YCbCr; use JCS_UNKNOWN. You may want to write an -APPn marker of your own devising to identify the colorspace --- see "Special -markers", below. - -When told that the color space is UNKNOWN, the library will default to using -luminance-quality compression parameters for all color components. You may -well want to change these parameters. See the source code for -jpeg_set_colorspace(), in jcparam.c, for details. - -For decompression, the JPEG file's color space is given in jpeg_color_space, -and this is transformed to the output color space out_color_space. -jpeg_read_header's setting of jpeg_color_space can be relied on if the file -conforms to JFIF or Adobe conventions, but otherwise it is no better than a -guess. If you know the JPEG file's color space for certain, you can override -jpeg_read_header's guess by setting jpeg_color_space. jpeg_read_header also -selects a default output color space based on (its guess of) jpeg_color_space; -set out_color_space to override this. Again, you must select a supported -transformation. jdcolor.c currently supports - YCbCr => RGB - YCbCr => GRAYSCALE - RGB => GRAYSCALE - GRAYSCALE => RGB - YCCK => CMYK -as well as the null transforms. (Since GRAYSCALE=>RGB is provided, an -application can force grayscale JPEGs to look like color JPEGs if it only -wants to handle one case.) - -The two-pass color quantizer, jquant2.c, is specialized to handle RGB data -(it weights distances appropriately for RGB colors). You'll need to modify -the code if you want to use it for non-RGB output color spaces. Note that -jquant2.c is used to map to an application-supplied colormap as well as for -the normal two-pass colormap selection process. - -CAUTION: it appears that Adobe Photoshop writes inverted data in CMYK JPEG -files: 0 represents 100% ink coverage, rather than 0% ink as you'd expect. -This is arguably a bug in Photoshop, but if you need to work with Photoshop -CMYK files, you will have to deal with it in your application. We cannot -"fix" this in the library by inverting the data during the CMYK<=>YCCK -transform, because that would break other applications, notably Ghostscript. -Photoshop versions prior to 3.0 write EPS files containing JPEG-encoded CMYK -data in the same inverted-YCCK representation used in bare JPEG files, but -the surrounding PostScript code performs an inversion using the PS image -operator. I am told that Photoshop 3.0 will write uninverted YCCK in -EPS/JPEG files, and will omit the PS-level inversion. (But the data -polarity used in bare JPEG files will not change in 3.0.) In either case, -the JPEG library must not invert the data itself, or else Ghostscript would -read these EPS files incorrectly. - - -Error handling --------------- - -When the default error handler is used, any error detected inside the JPEG -routines will cause a message to be printed on stderr, followed by exit(). -You can supply your own error handling routines to override this behavior -and to control the treatment of nonfatal warnings and trace/debug messages. -The file example.c illustrates the most common case, which is to have the -application regain control after an error rather than exiting. - -The JPEG library never writes any message directly; it always goes through -the error handling routines. Three classes of messages are recognized: - * Fatal errors: the library cannot continue. - * Warnings: the library can continue, but the data is corrupt, and a - damaged output image is likely to result. - * Trace/informational messages. These come with a trace level indicating - the importance of the message; you can control the verbosity of the - program by adjusting the maximum trace level that will be displayed. - -You may, if you wish, simply replace the entire JPEG error handling module -(jerror.c) with your own code. However, you can avoid code duplication by -only replacing some of the routines depending on the behavior you need. -This is accomplished by calling jpeg_std_error() as usual, but then overriding -some of the method pointers in the jpeg_error_mgr struct, as illustrated by -example.c. - -All of the error handling routines will receive a pointer to the JPEG object -(a j_common_ptr which points to either a jpeg_compress_struct or a -jpeg_decompress_struct; if you need to tell which, test the is_decompressor -field). This struct includes a pointer to the error manager struct in its -"err" field. Frequently, custom error handler routines will need to access -additional data which is not known to the JPEG library or the standard error -handler. The most convenient way to do this is to embed either the JPEG -object or the jpeg_error_mgr struct in a larger structure that contains -additional fields; then casting the passed pointer provides access to the -additional fields. Again, see example.c for one way to do it. (Beginning -with IJG version 6b, there is also a void pointer "client_data" in each -JPEG object, which the application can also use to find related data. -The library does not touch client_data at all.) - -The individual methods that you might wish to override are: - -error_exit (j_common_ptr cinfo) - Receives control for a fatal error. Information sufficient to - generate the error message has been stored in cinfo->err; call - output_message to display it. Control must NOT return to the caller; - generally this routine will exit() or longjmp() somewhere. - Typically you would override this routine to get rid of the exit() - default behavior. Note that if you continue processing, you should - clean up the JPEG object with jpeg_abort() or jpeg_destroy(). - -output_message (j_common_ptr cinfo) - Actual output of any JPEG message. Override this to send messages - somewhere other than stderr. Note that this method does not know - how to generate a message, only where to send it. - -format_message (j_common_ptr cinfo, char * buffer) - Constructs a readable error message string based on the error info - stored in cinfo->err. This method is called by output_message. Few - applications should need to override this method. One possible - reason for doing so is to implement dynamic switching of error message - language. - -emit_message (j_common_ptr cinfo, int msg_level) - Decide whether or not to emit a warning or trace message; if so, - calls output_message. The main reason for overriding this method - would be to abort on warnings. msg_level is -1 for warnings, - 0 and up for trace messages. - -Only error_exit() and emit_message() are called from the rest of the JPEG -library; the other two are internal to the error handler. - -The actual message texts are stored in an array of strings which is pointed to -by the field err->jpeg_message_table. The messages are numbered from 0 to -err->last_jpeg_message, and it is these code numbers that are used in the -JPEG library code. You could replace the message texts (for instance, with -messages in French or German) by changing the message table pointer. See -jerror.h for the default texts. CAUTION: this table will almost certainly -change or grow from one library version to the next. - -It may be useful for an application to add its own message texts that are -handled by the same mechanism. The error handler supports a second "add-on" -message table for this purpose. To define an addon table, set the pointer -err->addon_message_table and the message numbers err->first_addon_message and -err->last_addon_message. If you number the addon messages beginning at 1000 -or so, you won't have to worry about conflicts with the library's built-in -messages. See the sample applications cjpeg/djpeg for an example of using -addon messages (the addon messages are defined in cderror.h). - -Actual invocation of the error handler is done via macros defined in jerror.h: - ERREXITn(...) for fatal errors - WARNMSn(...) for corrupt-data warnings - TRACEMSn(...) for trace and informational messages. -These macros store the message code and any additional parameters into the -error handler struct, then invoke the error_exit() or emit_message() method. -The variants of each macro are for varying numbers of additional parameters. -The additional parameters are inserted into the generated message using -standard printf() format codes. - -See jerror.h and jerror.c for further details. - - -Compressed data handling (source and destination managers) ----------------------------------------------------------- - -The JPEG compression library sends its compressed data to a "destination -manager" module. The default destination manager just writes the data to a -memory buffer or to a stdio stream, but you can provide your own manager to -do something else. Similarly, the decompression library calls a "source -manager" to obtain the compressed data; you can provide your own source -manager if you want the data to come from somewhere other than a memory -buffer or a stdio stream. - -In both cases, compressed data is processed a bufferload at a time: the -destination or source manager provides a work buffer, and the library invokes -the manager only when the buffer is filled or emptied. (You could define a -one-character buffer to force the manager to be invoked for each byte, but -that would be rather inefficient.) The buffer's size and location are -controlled by the manager, not by the library. For example, the memory -source manager just makes the buffer pointer and length point to the original -data in memory. In this case the buffer-reload procedure will be invoked -only if the decompressor ran off the end of the datastream, which would -indicate an erroneous datastream. - -The work buffer is defined as an array of datatype JOCTET, which is generally -"char" or "unsigned char". On a machine where char is not exactly 8 bits -wide, you must define JOCTET as a wider data type and then modify the data -source and destination modules to transcribe the work arrays into 8-bit units -on external storage. - -A data destination manager struct contains a pointer and count defining the -next byte to write in the work buffer and the remaining free space: - - JOCTET * next_output_byte; /* => next byte to write in buffer */ - size_t free_in_buffer; /* # of byte spaces remaining in buffer */ - -The library increments the pointer and decrements the count until the buffer -is filled. The manager's empty_output_buffer method must reset the pointer -and count. The manager is expected to remember the buffer's starting address -and total size in private fields not visible to the library. - -A data destination manager provides three methods: - -init_destination (j_compress_ptr cinfo) - Initialize destination. This is called by jpeg_start_compress() - before any data is actually written. It must initialize - next_output_byte and free_in_buffer. free_in_buffer must be - initialized to a positive value. - -empty_output_buffer (j_compress_ptr cinfo) - This is called whenever the buffer has filled (free_in_buffer - reaches zero). In typical applications, it should write out the - *entire* buffer (use the saved start address and buffer length; - ignore the current state of next_output_byte and free_in_buffer). - Then reset the pointer & count to the start of the buffer, and - return TRUE indicating that the buffer has been dumped. - free_in_buffer must be set to a positive value when TRUE is - returned. A FALSE return should only be used when I/O suspension is - desired (this operating mode is discussed in the next section). - -term_destination (j_compress_ptr cinfo) - Terminate destination --- called by jpeg_finish_compress() after all - data has been written. In most applications, this must flush any - data remaining in the buffer. Use either next_output_byte or - free_in_buffer to determine how much data is in the buffer. - -term_destination() is NOT called by jpeg_abort() or jpeg_destroy(). If you -want the destination manager to be cleaned up during an abort, you must do it -yourself. - -You will also need code to create a jpeg_destination_mgr struct, fill in its -method pointers, and insert a pointer to the struct into the "dest" field of -the JPEG compression object. This can be done in-line in your setup code if -you like, but it's probably cleaner to provide a separate routine similar to -the jpeg_stdio_dest() or jpeg_mem_dest() routines of the supplied destination -managers. - -Decompression source managers follow a parallel design, but with some -additional frammishes. The source manager struct contains a pointer and count -defining the next byte to read from the work buffer and the number of bytes -remaining: - - const JOCTET * next_input_byte; /* => next byte to read from buffer */ - size_t bytes_in_buffer; /* # of bytes remaining in buffer */ - -The library increments the pointer and decrements the count until the buffer -is emptied. The manager's fill_input_buffer method must reset the pointer and -count. In most applications, the manager must remember the buffer's starting -address and total size in private fields not visible to the library. - -A data source manager provides five methods: - -init_source (j_decompress_ptr cinfo) - Initialize source. This is called by jpeg_read_header() before any - data is actually read. Unlike init_destination(), it may leave - bytes_in_buffer set to 0 (in which case a fill_input_buffer() call - will occur immediately). - -fill_input_buffer (j_decompress_ptr cinfo) - This is called whenever bytes_in_buffer has reached zero and more - data is wanted. In typical applications, it should read fresh data - into the buffer (ignoring the current state of next_input_byte and - bytes_in_buffer), reset the pointer & count to the start of the - buffer, and return TRUE indicating that the buffer has been reloaded. - It is not necessary to fill the buffer entirely, only to obtain at - least one more byte. bytes_in_buffer MUST be set to a positive value - if TRUE is returned. A FALSE return should only be used when I/O - suspension is desired (this mode is discussed in the next section). - -skip_input_data (j_decompress_ptr cinfo, long num_bytes) - Skip num_bytes worth of data. The buffer pointer and count should - be advanced over num_bytes input bytes, refilling the buffer as - needed. This is used to skip over a potentially large amount of - uninteresting data (such as an APPn marker). In some applications - it may be possible to optimize away the reading of the skipped data, - but it's not clear that being smart is worth much trouble; large - skips are uncommon. bytes_in_buffer may be zero on return. - A zero or negative skip count should be treated as a no-op. - -resync_to_restart (j_decompress_ptr cinfo, int desired) - This routine is called only when the decompressor has failed to find - a restart (RSTn) marker where one is expected. Its mission is to - find a suitable point for resuming decompression. For most - applications, we recommend that you just use the default resync - procedure, jpeg_resync_to_restart(). However, if you are able to back - up in the input data stream, or if you have a-priori knowledge about - the likely location of restart markers, you may be able to do better. - Read the read_restart_marker() and jpeg_resync_to_restart() routines - in jdmarker.c if you think you'd like to implement your own resync - procedure. - -term_source (j_decompress_ptr cinfo) - Terminate source --- called by jpeg_finish_decompress() after all - data has been read. Often a no-op. - -For both fill_input_buffer() and skip_input_data(), there is no such thing -as an EOF return. If the end of the file has been reached, the routine has -a choice of exiting via ERREXIT() or inserting fake data into the buffer. -In most cases, generating a warning message and inserting a fake EOI marker -is the best course of action --- this will allow the decompressor to output -however much of the image is there. In pathological cases, the decompressor -may swallow the EOI and again demand data ... just keep feeding it fake EOIs. -jdatasrc.c illustrates the recommended error recovery behavior. - -term_source() is NOT called by jpeg_abort() or jpeg_destroy(). If you want -the source manager to be cleaned up during an abort, you must do it yourself. - -You will also need code to create a jpeg_source_mgr struct, fill in its method -pointers, and insert a pointer to the struct into the "src" field of the JPEG -decompression object. This can be done in-line in your setup code if you -like, but it's probably cleaner to provide a separate routine similar to the -jpeg_stdio_src() or jpeg_mem_src() routines of the supplied source managers. - -For more information, consult the memory and stdio source and destination -managers in jdatasrc.c and jdatadst.c. - - -I/O suspension --------------- - -Some applications need to use the JPEG library as an incremental memory-to- -memory filter: when the compressed data buffer is filled or emptied, they want -control to return to the outer loop, rather than expecting that the buffer can -be emptied or reloaded within the data source/destination manager subroutine. -The library supports this need by providing an "I/O suspension" mode, which we -describe in this section. - -The I/O suspension mode is not a panacea: nothing is guaranteed about the -maximum amount of time spent in any one call to the library, so it will not -eliminate response-time problems in single-threaded applications. If you -need guaranteed response time, we suggest you "bite the bullet" and implement -a real multi-tasking capability. - -To use I/O suspension, cooperation is needed between the calling application -and the data source or destination manager; you will always need a custom -source/destination manager. (Please read the previous section if you haven't -already.) The basic idea is that the empty_output_buffer() or -fill_input_buffer() routine is a no-op, merely returning FALSE to indicate -that it has done nothing. Upon seeing this, the JPEG library suspends -operation and returns to its caller. The surrounding application is -responsible for emptying or refilling the work buffer before calling the -JPEG library again. - -Compression suspension: - -For compression suspension, use an empty_output_buffer() routine that returns -FALSE; typically it will not do anything else. This will cause the -compressor to return to the caller of jpeg_write_scanlines(), with the return -value indicating that not all the supplied scanlines have been accepted. -The application must make more room in the output buffer, adjust the output -buffer pointer/count appropriately, and then call jpeg_write_scanlines() -again, pointing to the first unconsumed scanline. - -When forced to suspend, the compressor will backtrack to a convenient stopping -point (usually the start of the current MCU); it will regenerate some output -data when restarted. Therefore, although empty_output_buffer() is only -called when the buffer is filled, you should NOT write out the entire buffer -after a suspension. Write only the data up to the current position of -next_output_byte/free_in_buffer. The data beyond that point will be -regenerated after resumption. - -Because of the backtracking behavior, a good-size output buffer is essential -for efficiency; you don't want the compressor to suspend often. (In fact, an -overly small buffer could lead to infinite looping, if a single MCU required -more data than would fit in the buffer.) We recommend a buffer of at least -several Kbytes. You may want to insert explicit code to ensure that you don't -call jpeg_write_scanlines() unless there is a reasonable amount of space in -the output buffer; in other words, flush the buffer before trying to compress -more data. - -The compressor does not allow suspension while it is trying to write JPEG -markers at the beginning and end of the file. This means that: - * At the beginning of a compression operation, there must be enough free - space in the output buffer to hold the header markers (typically 600 or - so bytes). The recommended buffer size is bigger than this anyway, so - this is not a problem as long as you start with an empty buffer. However, - this restriction might catch you if you insert large special markers, such - as a JFIF thumbnail image, without flushing the buffer afterwards. - * When you call jpeg_finish_compress(), there must be enough space in the - output buffer to emit any buffered data and the final EOI marker. In the - current implementation, half a dozen bytes should suffice for this, but - for safety's sake we recommend ensuring that at least 100 bytes are free - before calling jpeg_finish_compress(). - -A more significant restriction is that jpeg_finish_compress() cannot suspend. -This means you cannot use suspension with multi-pass operating modes, namely -Huffman code optimization and multiple-scan output. Those modes write the -whole file during jpeg_finish_compress(), which will certainly result in -buffer overrun. (Note that this restriction applies only to compression, -not decompression. The decompressor supports input suspension in all of its -operating modes.) - -Decompression suspension: - -For decompression suspension, use a fill_input_buffer() routine that simply -returns FALSE (except perhaps during error recovery, as discussed below). -This will cause the decompressor to return to its caller with an indication -that suspension has occurred. This can happen at four places: - * jpeg_read_header(): will return JPEG_SUSPENDED. - * jpeg_start_decompress(): will return FALSE, rather than its usual TRUE. - * jpeg_read_scanlines(): will return the number of scanlines already - completed (possibly 0). - * jpeg_finish_decompress(): will return FALSE, rather than its usual TRUE. -The surrounding application must recognize these cases, load more data into -the input buffer, and repeat the call. In the case of jpeg_read_scanlines(), -increment the passed pointers past any scanlines successfully read. - -Just as with compression, the decompressor will typically backtrack to a -convenient restart point before suspending. When fill_input_buffer() is -called, next_input_byte/bytes_in_buffer point to the current restart point, -which is where the decompressor will backtrack to if FALSE is returned. -The data beyond that position must NOT be discarded if you suspend; it needs -to be re-read upon resumption. In most implementations, you'll need to shift -this data down to the start of your work buffer and then load more data after -it. Again, this behavior means that a several-Kbyte work buffer is essential -for decent performance; furthermore, you should load a reasonable amount of -new data before resuming decompression. (If you loaded, say, only one new -byte each time around, you could waste a LOT of cycles.) - -The skip_input_data() source manager routine requires special care in a -suspension scenario. This routine is NOT granted the ability to suspend the -decompressor; it can decrement bytes_in_buffer to zero, but no more. If the -requested skip distance exceeds the amount of data currently in the input -buffer, then skip_input_data() must set bytes_in_buffer to zero and record the -additional skip distance somewhere else. The decompressor will immediately -call fill_input_buffer(), which should return FALSE, which will cause a -suspension return. The surrounding application must then arrange to discard -the recorded number of bytes before it resumes loading the input buffer. -(Yes, this design is rather baroque, but it avoids complexity in the far more -common case where a non-suspending source manager is used.) - -If the input data has been exhausted, we recommend that you emit a warning -and insert dummy EOI markers just as a non-suspending data source manager -would do. This can be handled either in the surrounding application logic or -within fill_input_buffer(); the latter is probably more efficient. If -fill_input_buffer() knows that no more data is available, it can set the -pointer/count to point to a dummy EOI marker and then return TRUE just as -though it had read more data in a non-suspending situation. - -The decompressor does not attempt to suspend within standard JPEG markers; -instead it will backtrack to the start of the marker and reprocess the whole -marker next time. Hence the input buffer must be large enough to hold the -longest standard marker in the file. Standard JPEG markers should normally -not exceed a few hundred bytes each (DHT tables are typically the longest). -We recommend at least a 2K buffer for performance reasons, which is much -larger than any correct marker is likely to be. For robustness against -damaged marker length counts, you may wish to insert a test in your -application for the case that the input buffer is completely full and yet -the decoder has suspended without consuming any data --- otherwise, if this -situation did occur, it would lead to an endless loop. (The library can't -provide this test since it has no idea whether "the buffer is full", or -even whether there is a fixed-size input buffer.) - -The input buffer would need to be 64K to allow for arbitrary COM or APPn -markers, but these are handled specially: they are either saved into allocated -memory, or skipped over by calling skip_input_data(). In the former case, -suspension is handled correctly, and in the latter case, the problem of -buffer overrun is placed on skip_input_data's shoulders, as explained above. -Note that if you provide your own marker handling routine for large markers, -you should consider how to deal with buffer overflow. - -Multiple-buffer management: - -In some applications it is desirable to store the compressed data in a linked -list of buffer areas, so as to avoid data copying. This can be handled by -having empty_output_buffer() or fill_input_buffer() set the pointer and count -to reference the next available buffer; FALSE is returned only if no more -buffers are available. Although seemingly straightforward, there is a -pitfall in this approach: the backtrack that occurs when FALSE is returned -could back up into an earlier buffer. For example, when fill_input_buffer() -is called, the current pointer & count indicate the backtrack restart point. -Since fill_input_buffer() will set the pointer and count to refer to a new -buffer, the restart position must be saved somewhere else. Suppose a second -call to fill_input_buffer() occurs in the same library call, and no -additional input data is available, so fill_input_buffer must return FALSE. -If the JPEG library has not moved the pointer/count forward in the current -buffer, then *the correct restart point is the saved position in the prior -buffer*. Prior buffers may be discarded only after the library establishes -a restart point within a later buffer. Similar remarks apply for output into -a chain of buffers. - -The library will never attempt to backtrack over a skip_input_data() call, -so any skipped data can be permanently discarded. You still have to deal -with the case of skipping not-yet-received data, however. - -It's much simpler to use only a single buffer; when fill_input_buffer() is -called, move any unconsumed data (beyond the current pointer/count) down to -the beginning of this buffer and then load new data into the remaining buffer -space. This approach requires a little more data copying but is far easier -to get right. - - -Progressive JPEG support ------------------------- - -Progressive JPEG rearranges the stored data into a series of scans of -increasing quality. In situations where a JPEG file is transmitted across a -slow communications link, a decoder can generate a low-quality image very -quickly from the first scan, then gradually improve the displayed quality as -more scans are received. The final image after all scans are complete is -identical to that of a regular (sequential) JPEG file of the same quality -setting. Progressive JPEG files are often slightly smaller than equivalent -sequential JPEG files, but the possibility of incremental display is the main -reason for using progressive JPEG. - -The IJG encoder library generates progressive JPEG files when given a -suitable "scan script" defining how to divide the data into scans. -Creation of progressive JPEG files is otherwise transparent to the encoder. -Progressive JPEG files can also be read transparently by the decoder library. -If the decoding application simply uses the library as defined above, it -will receive a final decoded image without any indication that the file was -progressive. Of course, this approach does not allow incremental display. -To perform incremental display, an application needs to use the decoder -library's "buffered-image" mode, in which it receives a decoded image -multiple times. - -Each displayed scan requires about as much work to decode as a full JPEG -image of the same size, so the decoder must be fairly fast in relation to the -data transmission rate in order to make incremental display useful. However, -it is possible to skip displaying the image and simply add the incoming bits -to the decoder's coefficient buffer. This is fast because only Huffman -decoding need be done, not IDCT, upsampling, colorspace conversion, etc. -The IJG decoder library allows the application to switch dynamically between -displaying the image and simply absorbing the incoming bits. A properly -coded application can automatically adapt the number of display passes to -suit the time available as the image is received. Also, a final -higher-quality display cycle can be performed from the buffered data after -the end of the file is reached. - -Progressive compression: - -To create a progressive JPEG file (or a multiple-scan sequential JPEG file), -set the scan_info cinfo field to point to an array of scan descriptors, and -perform compression as usual. Instead of constructing your own scan list, -you can call the jpeg_simple_progression() helper routine to create a -recommended progression sequence; this method should be used by all -applications that don't want to get involved in the nitty-gritty of -progressive scan sequence design. (If you want to provide user control of -scan sequences, you may wish to borrow the scan script reading code found -in rdswitch.c, so that you can read scan script files just like cjpeg's.) -When scan_info is not NULL, the compression library will store DCT'd data -into a buffer array as jpeg_write_scanlines() is called, and will emit all -the requested scans during jpeg_finish_compress(). This implies that -multiple-scan output cannot be created with a suspending data destination -manager, since jpeg_finish_compress() does not support suspension. We -should also note that the compressor currently forces Huffman optimization -mode when creating a progressive JPEG file, because the default Huffman -tables are unsuitable for progressive files. - -Progressive decompression: - -When buffered-image mode is not used, the decoder library will read all of -a multi-scan file during jpeg_start_decompress(), so that it can provide a -final decoded image. (Here "multi-scan" means either progressive or -multi-scan sequential.) This makes multi-scan files transparent to the -decoding application. However, existing applications that used suspending -input with version 5 of the IJG library will need to be modified to check -for a suspension return from jpeg_start_decompress(). - -To perform incremental display, an application must use the library's -buffered-image mode. This is described in the next section. - - -Buffered-image mode -------------------- - -In buffered-image mode, the library stores the partially decoded image in a -coefficient buffer, from which it can be read out as many times as desired. -This mode is typically used for incremental display of progressive JPEG files, -but it can be used with any JPEG file. Each scan of a progressive JPEG file -adds more data (more detail) to the buffered image. The application can -display in lockstep with the source file (one display pass per input scan), -or it can allow input processing to outrun display processing. By making -input and display processing run independently, it is possible for the -application to adapt progressive display to a wide range of data transmission -rates. - -The basic control flow for buffered-image decoding is - - jpeg_create_decompress() - set data source - jpeg_read_header() - set overall decompression parameters - cinfo.buffered_image = TRUE; /* select buffered-image mode */ - jpeg_start_decompress() - for (each output pass) { - adjust output decompression parameters if required - jpeg_start_output() /* start a new output pass */ - for (all scanlines in image) { - jpeg_read_scanlines() - display scanlines - } - jpeg_finish_output() /* terminate output pass */ - } - jpeg_finish_decompress() - jpeg_destroy_decompress() - -This differs from ordinary unbuffered decoding in that there is an additional -level of looping. The application can choose how many output passes to make -and how to display each pass. - -The simplest approach to displaying progressive images is to do one display -pass for each scan appearing in the input file. In this case the outer loop -condition is typically - while (! jpeg_input_complete(&cinfo)) -and the start-output call should read - jpeg_start_output(&cinfo, cinfo.input_scan_number); -The second parameter to jpeg_start_output() indicates which scan of the input -file is to be displayed; the scans are numbered starting at 1 for this -purpose. (You can use a loop counter starting at 1 if you like, but using -the library's input scan counter is easier.) The library automatically reads -data as necessary to complete each requested scan, and jpeg_finish_output() -advances to the next scan or end-of-image marker (hence input_scan_number -will be incremented by the time control arrives back at jpeg_start_output()). -With this technique, data is read from the input file only as needed, and -input and output processing run in lockstep. - -After reading the final scan and reaching the end of the input file, the -buffered image remains available; it can be read additional times by -repeating the jpeg_start_output()/jpeg_read_scanlines()/jpeg_finish_output() -sequence. For example, a useful technique is to use fast one-pass color -quantization for display passes made while the image is arriving, followed by -a final display pass using two-pass quantization for highest quality. This -is done by changing the library parameters before the final output pass. -Changing parameters between passes is discussed in detail below. - -In general the last scan of a progressive file cannot be recognized as such -until after it is read, so a post-input display pass is the best approach if -you want special processing in the final pass. - -When done with the image, be sure to call jpeg_finish_decompress() to release -the buffered image (or just use jpeg_destroy_decompress()). - -If input data arrives faster than it can be displayed, the application can -cause the library to decode input data in advance of what's needed to produce -output. This is done by calling the routine jpeg_consume_input(). -The return value is one of the following: - JPEG_REACHED_SOS: reached an SOS marker (the start of a new scan) - JPEG_REACHED_EOI: reached the EOI marker (end of image) - JPEG_ROW_COMPLETED: completed reading one MCU row of compressed data - JPEG_SCAN_COMPLETED: completed reading last MCU row of current scan - JPEG_SUSPENDED: suspended before completing any of the above -(JPEG_SUSPENDED can occur only if a suspending data source is used.) This -routine can be called at any time after initializing the JPEG object. It -reads some additional data and returns when one of the indicated significant -events occurs. (If called after the EOI marker is reached, it will -immediately return JPEG_REACHED_EOI without attempting to read more data.) - -The library's output processing will automatically call jpeg_consume_input() -whenever the output processing overtakes the input; thus, simple lockstep -display requires no direct calls to jpeg_consume_input(). But by adding -calls to jpeg_consume_input(), you can absorb data in advance of what is -being displayed. This has two benefits: - * You can limit buildup of unprocessed data in your input buffer. - * You can eliminate extra display passes by paying attention to the - state of the library's input processing. - -The first of these benefits only requires interspersing calls to -jpeg_consume_input() with your display operations and any other processing -you may be doing. To avoid wasting cycles due to backtracking, it's best to -call jpeg_consume_input() only after a hundred or so new bytes have arrived. -This is discussed further under "I/O suspension", above. (Note: the JPEG -library currently is not thread-safe. You must not call jpeg_consume_input() -from one thread of control if a different library routine is working on the -same JPEG object in another thread.) - -When input arrives fast enough that more than one new scan is available -before you start a new output pass, you may as well skip the output pass -corresponding to the completed scan. This occurs for free if you pass -cinfo.input_scan_number as the target scan number to jpeg_start_output(). -The input_scan_number field is simply the index of the scan currently being -consumed by the input processor. You can ensure that this is up-to-date by -emptying the input buffer just before calling jpeg_start_output(): call -jpeg_consume_input() repeatedly until it returns JPEG_SUSPENDED or -JPEG_REACHED_EOI. - -The target scan number passed to jpeg_start_output() is saved in the -cinfo.output_scan_number field. The library's output processing calls -jpeg_consume_input() whenever the current input scan number and row within -that scan is less than or equal to the current output scan number and row. -Thus, input processing can "get ahead" of the output processing but is not -allowed to "fall behind". You can achieve several different effects by -manipulating this interlock rule. For example, if you pass a target scan -number greater than the current input scan number, the output processor will -wait until that scan starts to arrive before producing any output. (To avoid -an infinite loop, the target scan number is automatically reset to the last -scan number when the end of image is reached. Thus, if you specify a large -target scan number, the library will just absorb the entire input file and -then perform an output pass. This is effectively the same as what -jpeg_start_decompress() does when you don't select buffered-image mode.) -When you pass a target scan number equal to the current input scan number, -the image is displayed no faster than the current input scan arrives. The -final possibility is to pass a target scan number less than the current input -scan number; this disables the input/output interlock and causes the output -processor to simply display whatever it finds in the image buffer, without -waiting for input. (However, the library will not accept a target scan -number less than one, so you can't avoid waiting for the first scan.) - -When data is arriving faster than the output display processing can advance -through the image, jpeg_consume_input() will store data into the buffered -image beyond the point at which the output processing is reading data out -again. If the input arrives fast enough, it may "wrap around" the buffer to -the point where the input is more than one whole scan ahead of the output. -If the output processing simply proceeds through its display pass without -paying attention to the input, the effect seen on-screen is that the lower -part of the image is one or more scans better in quality than the upper part. -Then, when the next output scan is started, you have a choice of what target -scan number to use. The recommended choice is to use the current input scan -number at that time, which implies that you've skipped the output scans -corresponding to the input scans that were completed while you processed the -previous output scan. In this way, the decoder automatically adapts its -speed to the arriving data, by skipping output scans as necessary to keep up -with the arriving data. - -When using this strategy, you'll want to be sure that you perform a final -output pass after receiving all the data; otherwise your last display may not -be full quality across the whole screen. So the right outer loop logic is -something like this: - do { - absorb any waiting input by calling jpeg_consume_input() - final_pass = jpeg_input_complete(&cinfo); - adjust output decompression parameters if required - jpeg_start_output(&cinfo, cinfo.input_scan_number); - ... - jpeg_finish_output() - } while (! final_pass); -rather than quitting as soon as jpeg_input_complete() returns TRUE. This -arrangement makes it simple to use higher-quality decoding parameters -for the final pass. But if you don't want to use special parameters for -the final pass, the right loop logic is like this: - for (;;) { - absorb any waiting input by calling jpeg_consume_input() - jpeg_start_output(&cinfo, cinfo.input_scan_number); - ... - jpeg_finish_output() - if (jpeg_input_complete(&cinfo) && - cinfo.input_scan_number == cinfo.output_scan_number) - break; - } -In this case you don't need to know in advance whether an output pass is to -be the last one, so it's not necessary to have reached EOF before starting -the final output pass; rather, what you want to test is whether the output -pass was performed in sync with the final input scan. This form of the loop -will avoid an extra output pass whenever the decoder is able (or nearly able) -to keep up with the incoming data. - -When the data transmission speed is high, you might begin a display pass, -then find that much or all of the file has arrived before you can complete -the pass. (You can detect this by noting the JPEG_REACHED_EOI return code -from jpeg_consume_input(), or equivalently by testing jpeg_input_complete().) -In this situation you may wish to abort the current display pass and start a -new one using the newly arrived information. To do so, just call -jpeg_finish_output() and then start a new pass with jpeg_start_output(). - -A variant strategy is to abort and restart display if more than one complete -scan arrives during an output pass; this can be detected by noting -JPEG_REACHED_SOS returns and/or examining cinfo.input_scan_number. This -idea should be employed with caution, however, since the display process -might never get to the bottom of the image before being aborted, resulting -in the lower part of the screen being several passes worse than the upper. -In most cases it's probably best to abort an output pass only if the whole -file has arrived and you want to begin the final output pass immediately. - -When receiving data across a communication link, we recommend always using -the current input scan number for the output target scan number; if a -higher-quality final pass is to be done, it should be started (aborting any -incomplete output pass) as soon as the end of file is received. However, -many other strategies are possible. For example, the application can examine -the parameters of the current input scan and decide whether to display it or -not. If the scan contains only chroma data, one might choose not to use it -as the target scan, expecting that the scan will be small and will arrive -quickly. To skip to the next scan, call jpeg_consume_input() until it -returns JPEG_REACHED_SOS or JPEG_REACHED_EOI. Or just use the next higher -number as the target scan for jpeg_start_output(); but that method doesn't -let you inspect the next scan's parameters before deciding to display it. - - -In buffered-image mode, jpeg_start_decompress() never performs input and -thus never suspends. An application that uses input suspension with -buffered-image mode must be prepared for suspension returns from these -routines: -* jpeg_start_output() performs input only if you request 2-pass quantization - and the target scan isn't fully read yet. (This is discussed below.) -* jpeg_read_scanlines(), as always, returns the number of scanlines that it - was able to produce before suspending. -* jpeg_finish_output() will read any markers following the target scan, - up to the end of the file or the SOS marker that begins another scan. - (But it reads no input if jpeg_consume_input() has already reached the - end of the file or a SOS marker beyond the target output scan.) -* jpeg_finish_decompress() will read until the end of file, and thus can - suspend if the end hasn't already been reached (as can be tested by - calling jpeg_input_complete()). -jpeg_start_output(), jpeg_finish_output(), and jpeg_finish_decompress() -all return TRUE if they completed their tasks, FALSE if they had to suspend. -In the event of a FALSE return, the application must load more input data -and repeat the call. Applications that use non-suspending data sources need -not check the return values of these three routines. - - -It is possible to change decoding parameters between output passes in the -buffered-image mode. The decoder library currently supports only very -limited changes of parameters. ONLY THE FOLLOWING parameter changes are -allowed after jpeg_start_decompress() is called: -* dct_method can be changed before each call to jpeg_start_output(). - For example, one could use a fast DCT method for early scans, changing - to a higher quality method for the final scan. -* dither_mode can be changed before each call to jpeg_start_output(); - of course this has no impact if not using color quantization. Typically - one would use ordered dither for initial passes, then switch to - Floyd-Steinberg dither for the final pass. Caution: changing dither mode - can cause more memory to be allocated by the library. Although the amount - of memory involved is not large (a scanline or so), it may cause the - initial max_memory_to_use specification to be exceeded, which in the worst - case would result in an out-of-memory failure. -* do_block_smoothing can be changed before each call to jpeg_start_output(). - This setting is relevant only when decoding a progressive JPEG image. - During the first DC-only scan, block smoothing provides a very "fuzzy" look - instead of the very "blocky" look seen without it; which is better seems a - matter of personal taste. But block smoothing is nearly always a win - during later stages, especially when decoding a successive-approximation - image: smoothing helps to hide the slight blockiness that otherwise shows - up on smooth gradients until the lowest coefficient bits are sent. -* Color quantization mode can be changed under the rules described below. - You *cannot* change between full-color and quantized output (because that - would alter the required I/O buffer sizes), but you can change which - quantization method is used. - -When generating color-quantized output, changing quantization method is a -very useful way of switching between high-speed and high-quality display. -The library allows you to change among its three quantization methods: -1. Single-pass quantization to a fixed color cube. - Selected by cinfo.two_pass_quantize = FALSE and cinfo.colormap = NULL. -2. Single-pass quantization to an application-supplied colormap. - Selected by setting cinfo.colormap to point to the colormap (the value of - two_pass_quantize is ignored); also set cinfo.actual_number_of_colors. -3. Two-pass quantization to a colormap chosen specifically for the image. - Selected by cinfo.two_pass_quantize = TRUE and cinfo.colormap = NULL. - (This is the default setting selected by jpeg_read_header, but it is - probably NOT what you want for the first pass of progressive display!) -These methods offer successively better quality and lesser speed. However, -only the first method is available for quantizing in non-RGB color spaces. - -IMPORTANT: because the different quantizer methods have very different -working-storage requirements, the library requires you to indicate which -one(s) you intend to use before you call jpeg_start_decompress(). (If we did -not require this, the max_memory_to_use setting would be a complete fiction.) -You do this by setting one or more of these three cinfo fields to TRUE: - enable_1pass_quant Fixed color cube colormap - enable_external_quant Externally-supplied colormap - enable_2pass_quant Two-pass custom colormap -All three are initialized FALSE by jpeg_read_header(). But -jpeg_start_decompress() automatically sets TRUE the one selected by the -current two_pass_quantize and colormap settings, so you only need to set the -enable flags for any other quantization methods you plan to change to later. - -After setting the enable flags correctly at jpeg_start_decompress() time, you -can change to any enabled quantization method by setting two_pass_quantize -and colormap properly just before calling jpeg_start_output(). The following -special rules apply: -1. You must explicitly set cinfo.colormap to NULL when switching to 1-pass - or 2-pass mode from a different mode, or when you want the 2-pass - quantizer to be re-run to generate a new colormap. -2. To switch to an external colormap, or to change to a different external - colormap than was used on the prior pass, you must call - jpeg_new_colormap() after setting cinfo.colormap. -NOTE: if you want to use the same colormap as was used in the prior pass, -you should not do either of these things. This will save some nontrivial -switchover costs. -(These requirements exist because cinfo.colormap will always be non-NULL -after completing a prior output pass, since both the 1-pass and 2-pass -quantizers set it to point to their output colormaps. Thus you have to -do one of these two things to notify the library that something has changed. -Yup, it's a bit klugy, but it's necessary to do it this way for backwards -compatibility.) - -Note that in buffered-image mode, the library generates any requested colormap -during jpeg_start_output(), not during jpeg_start_decompress(). - -When using two-pass quantization, jpeg_start_output() makes a pass over the -buffered image to determine the optimum color map; it therefore may take a -significant amount of time, whereas ordinarily it does little work. The -progress monitor hook is called during this pass, if defined. It is also -important to realize that if the specified target scan number is greater than -or equal to the current input scan number, jpeg_start_output() will attempt -to consume input as it makes this pass. If you use a suspending data source, -you need to check for a FALSE return from jpeg_start_output() under these -conditions. The combination of 2-pass quantization and a not-yet-fully-read -target scan is the only case in which jpeg_start_output() will consume input. - - -Application authors who support buffered-image mode may be tempted to use it -for all JPEG images, even single-scan ones. This will work, but it is -inefficient: there is no need to create an image-sized coefficient buffer for -single-scan images. Requesting buffered-image mode for such an image wastes -memory. Worse, it can cost time on large images, since the buffered data has -to be swapped out or written to a temporary file. If you are concerned about -maximum performance on baseline JPEG files, you should use buffered-image -mode only when the incoming file actually has multiple scans. This can be -tested by calling jpeg_has_multiple_scans(), which will return a correct -result at any time after jpeg_read_header() completes. - -It is also worth noting that when you use jpeg_consume_input() to let input -processing get ahead of output processing, the resulting pattern of access to -the coefficient buffer is quite nonsequential. It's best to use the memory -manager jmemnobs.c if you can (ie, if you have enough real or virtual main -memory). If not, at least make sure that max_memory_to_use is set as high as -possible. If the JPEG memory manager has to use a temporary file, you will -probably see a lot of disk traffic and poor performance. (This could be -improved with additional work on the memory manager, but we haven't gotten -around to it yet.) - -In some applications it may be convenient to use jpeg_consume_input() for all -input processing, including reading the initial markers; that is, you may -wish to call jpeg_consume_input() instead of jpeg_read_header() during -startup. This works, but note that you must check for JPEG_REACHED_SOS and -JPEG_REACHED_EOI return codes as the equivalent of jpeg_read_header's codes. -Once the first SOS marker has been reached, you must call -jpeg_start_decompress() before jpeg_consume_input() will consume more input; -it'll just keep returning JPEG_REACHED_SOS until you do. If you read a -tables-only file this way, jpeg_consume_input() will return JPEG_REACHED_EOI -without ever returning JPEG_REACHED_SOS; be sure to check for this case. -If this happens, the decompressor will not read any more input until you call -jpeg_abort() to reset it. It is OK to call jpeg_consume_input() even when not -using buffered-image mode, but in that case it's basically a no-op after the -initial markers have been read: it will just return JPEG_SUSPENDED. - - -Abbreviated datastreams and multiple images -------------------------------------------- - -A JPEG compression or decompression object can be reused to process multiple -images. This saves a small amount of time per image by eliminating the -"create" and "destroy" operations, but that isn't the real purpose of the -feature. Rather, reuse of an object provides support for abbreviated JPEG -datastreams. Object reuse can also simplify processing a series of images in -a single input or output file. This section explains these features. - -A JPEG file normally contains several hundred bytes worth of quantization -and Huffman tables. In a situation where many images will be stored or -transmitted with identical tables, this may represent an annoying overhead. -The JPEG standard therefore permits tables to be omitted. The standard -defines three classes of JPEG datastreams: - * "Interchange" datastreams contain an image and all tables needed to decode - the image. These are the usual kind of JPEG file. - * "Abbreviated image" datastreams contain an image, but are missing some or - all of the tables needed to decode that image. - * "Abbreviated table specification" (henceforth "tables-only") datastreams - contain only table specifications. -To decode an abbreviated image, it is necessary to load the missing table(s) -into the decoder beforehand. This can be accomplished by reading a separate -tables-only file. A variant scheme uses a series of images in which the first -image is an interchange (complete) datastream, while subsequent ones are -abbreviated and rely on the tables loaded by the first image. It is assumed -that once the decoder has read a table, it will remember that table until a -new definition for the same table number is encountered. - -It is the application designer's responsibility to figure out how to associate -the correct tables with an abbreviated image. While abbreviated datastreams -can be useful in a closed environment, their use is strongly discouraged in -any situation where data exchange with other applications might be needed. -Caveat designer. - -The JPEG library provides support for reading and writing any combination of -tables-only datastreams and abbreviated images. In both compression and -decompression objects, a quantization or Huffman table will be retained for -the lifetime of the object, unless it is overwritten by a new table definition. - - -To create abbreviated image datastreams, it is only necessary to tell the -compressor not to emit some or all of the tables it is using. Each -quantization and Huffman table struct contains a boolean field "sent_table", -which normally is initialized to FALSE. For each table used by the image, the -header-writing process emits the table and sets sent_table = TRUE unless it is -already TRUE. (In normal usage, this prevents outputting the same table -definition multiple times, as would otherwise occur because the chroma -components typically share tables.) Thus, setting this field to TRUE before -calling jpeg_start_compress() will prevent the table from being written at -all. - -If you want to create a "pure" abbreviated image file containing no tables, -just call "jpeg_suppress_tables(&cinfo, TRUE)" after constructing all the -tables. If you want to emit some but not all tables, you'll need to set the -individual sent_table fields directly. - -To create an abbreviated image, you must also call jpeg_start_compress() -with a second parameter of FALSE, not TRUE. Otherwise jpeg_start_compress() -will force all the sent_table fields to FALSE. (This is a safety feature to -prevent abbreviated images from being created accidentally.) - -To create a tables-only file, perform the same parameter setup that you -normally would, but instead of calling jpeg_start_compress() and so on, call -jpeg_write_tables(&cinfo). This will write an abbreviated datastream -containing only SOI, DQT and/or DHT markers, and EOI. All the quantization -and Huffman tables that are currently defined in the compression object will -be emitted unless their sent_tables flag is already TRUE, and then all the -sent_tables flags will be set TRUE. - -A sure-fire way to create matching tables-only and abbreviated image files -is to proceed as follows: - - create JPEG compression object - set JPEG parameters - set destination to tables-only file - jpeg_write_tables(&cinfo); - set destination to image file - jpeg_start_compress(&cinfo, FALSE); - write data... - jpeg_finish_compress(&cinfo); - -Since the JPEG parameters are not altered between writing the table file and -the abbreviated image file, the same tables are sure to be used. Of course, -you can repeat the jpeg_start_compress() ... jpeg_finish_compress() sequence -many times to produce many abbreviated image files matching the table file. - -You cannot suppress output of the computed Huffman tables when Huffman -optimization is selected. (If you could, there'd be no way to decode the -image...) Generally, you don't want to set optimize_coding = TRUE when -you are trying to produce abbreviated files. - -In some cases you might want to compress an image using tables which are -not stored in the application, but are defined in an interchange or -tables-only file readable by the application. This can be done by setting up -a JPEG decompression object to read the specification file, then copying the -tables into your compression object. See jpeg_copy_critical_parameters() -for an example of copying quantization tables. - - -To read abbreviated image files, you simply need to load the proper tables -into the decompression object before trying to read the abbreviated image. -If the proper tables are stored in the application program, you can just -allocate the table structs and fill in their contents directly. For example, -to load a fixed quantization table into table slot "n": - - if (cinfo.quant_tbl_ptrs[n] == NULL) - cinfo.quant_tbl_ptrs[n] = jpeg_alloc_quant_table((j_common_ptr) &cinfo); - quant_ptr = cinfo.quant_tbl_ptrs[n]; /* quant_ptr is JQUANT_TBL* */ - for (i = 0; i < 64; i++) { - /* Qtable[] is desired quantization table, in natural array order */ - quant_ptr->quantval[i] = Qtable[i]; - } - -Code to load a fixed Huffman table is typically (for AC table "n"): - - if (cinfo.ac_huff_tbl_ptrs[n] == NULL) - cinfo.ac_huff_tbl_ptrs[n] = jpeg_alloc_huff_table((j_common_ptr) &cinfo); - huff_ptr = cinfo.ac_huff_tbl_ptrs[n]; /* huff_ptr is JHUFF_TBL* */ - for (i = 1; i <= 16; i++) { - /* counts[i] is number of Huffman codes of length i bits, i=1..16 */ - huff_ptr->bits[i] = counts[i]; - } - for (i = 0; i < 256; i++) { - /* symbols[] is the list of Huffman symbols, in code-length order */ - huff_ptr->huffval[i] = symbols[i]; - } - -(Note that trying to set cinfo.quant_tbl_ptrs[n] to point directly at a -constant JQUANT_TBL object is not safe. If the incoming file happened to -contain a quantization table definition, your master table would get -overwritten! Instead allocate a working table copy and copy the master table -into it, as illustrated above. Ditto for Huffman tables, of course.) - -You might want to read the tables from a tables-only file, rather than -hard-wiring them into your application. The jpeg_read_header() call is -sufficient to read a tables-only file. You must pass a second parameter of -FALSE to indicate that you do not require an image to be present. Thus, the -typical scenario is - - create JPEG decompression object - set source to tables-only file - jpeg_read_header(&cinfo, FALSE); - set source to abbreviated image file - jpeg_read_header(&cinfo, TRUE); - set decompression parameters - jpeg_start_decompress(&cinfo); - read data... - jpeg_finish_decompress(&cinfo); - -In some cases, you may want to read a file without knowing whether it contains -an image or just tables. In that case, pass FALSE and check the return value -from jpeg_read_header(): it will be JPEG_HEADER_OK if an image was found, -JPEG_HEADER_TABLES_ONLY if only tables were found. (A third return value, -JPEG_SUSPENDED, is possible when using a suspending data source manager.) -Note that jpeg_read_header() will not complain if you read an abbreviated -image for which you haven't loaded the missing tables; the missing-table check -occurs later, in jpeg_start_decompress(). - - -It is possible to read a series of images from a single source file by -repeating the jpeg_read_header() ... jpeg_finish_decompress() sequence, -without releasing/recreating the JPEG object or the data source module. -(If you did reinitialize, any partial bufferload left in the data source -buffer at the end of one image would be discarded, causing you to lose the -start of the next image.) When you use this method, stored tables are -automatically carried forward, so some of the images can be abbreviated images -that depend on tables from earlier images. - -If you intend to write a series of images into a single destination file, -you might want to make a specialized data destination module that doesn't -flush the output buffer at term_destination() time. This would speed things -up by some trifling amount. Of course, you'd need to remember to flush the -buffer after the last image. You can make the later images be abbreviated -ones by passing FALSE to jpeg_start_compress(). - - -Special markers ---------------- - -Some applications may need to insert or extract special data in the JPEG -datastream. The JPEG standard provides marker types "COM" (comment) and -"APP0" through "APP15" (application) to hold application-specific data. -Unfortunately, the use of these markers is not specified by the standard. -COM markers are fairly widely used to hold user-supplied text. The JFIF file -format spec uses APP0 markers with specified initial strings to hold certain -data. Adobe applications use APP14 markers beginning with the string "Adobe" -for miscellaneous data. Other APPn markers are rarely seen, but might -contain almost anything. - -If you wish to store user-supplied text, we recommend you use COM markers -and place readable 7-bit ASCII text in them. Newline conventions are not -standardized --- expect to find LF (Unix style), CR/LF (DOS style), or CR -(Mac style). A robust COM reader should be able to cope with random binary -garbage, including nulls, since some applications generate COM markers -containing non-ASCII junk. (But yours should not be one of them.) - -For program-supplied data, use an APPn marker, and be sure to begin it with an -identifying string so that you can tell whether the marker is actually yours. -It's probably best to avoid using APP0 or APP14 for any private markers. -(NOTE: the upcoming SPIFF standard will use APP8 markers; we recommend you -not use APP8 markers for any private purposes, either.) - -Keep in mind that at most 65533 bytes can be put into one marker, but you -can have as many markers as you like. - -By default, the IJG compression library will write a JFIF APP0 marker if the -selected JPEG colorspace is grayscale or YCbCr, or an Adobe APP14 marker if -the selected colorspace is RGB, CMYK, or YCCK. You can disable this, but -we don't recommend it. The decompression library will recognize JFIF and -Adobe markers and will set the JPEG colorspace properly when one is found. - - -You can write special markers immediately following the datastream header by -calling jpeg_write_marker() after jpeg_start_compress() and before the first -call to jpeg_write_scanlines(). When you do this, the markers appear after -the SOI and the JFIF APP0 and Adobe APP14 markers (if written), but before -all else. Specify the marker type parameter as "JPEG_COM" for COM or -"JPEG_APP0 + n" for APPn. (Actually, jpeg_write_marker will let you write -any marker type, but we don't recommend writing any other kinds of marker.) -For example, to write a user comment string pointed to by comment_text: - jpeg_write_marker(cinfo, JPEG_COM, comment_text, strlen(comment_text)); - -If it's not convenient to store all the marker data in memory at once, -you can instead call jpeg_write_m_header() followed by multiple calls to -jpeg_write_m_byte(). If you do it this way, it's your responsibility to -call jpeg_write_m_byte() exactly the number of times given in the length -parameter to jpeg_write_m_header(). (This method lets you empty the -output buffer partway through a marker, which might be important when -using a suspending data destination module. In any case, if you are using -a suspending destination, you should flush its buffer after inserting -any special markers. See "I/O suspension".) - -Or, if you prefer to synthesize the marker byte sequence yourself, -you can just cram it straight into the data destination module. - -If you are writing JFIF 1.02 extension markers (thumbnail images), don't -forget to set cinfo.JFIF_minor_version = 2 so that the encoder will write the -correct JFIF version number in the JFIF header marker. The library's default -is to write version 1.01, but that's wrong if you insert any 1.02 extension -markers. (We could probably get away with just defaulting to 1.02, but there -used to be broken decoders that would complain about unknown minor version -numbers. To reduce compatibility risks it's safest not to write 1.02 unless -you are actually using 1.02 extensions.) - - -When reading, two methods of handling special markers are available: -1. You can ask the library to save the contents of COM and/or APPn markers -into memory, and then examine them at your leisure afterwards. -2. You can supply your own routine to process COM and/or APPn markers -on-the-fly as they are read. -The first method is simpler to use, especially if you are using a suspending -data source; writing a marker processor that copes with input suspension is -not easy (consider what happens if the marker is longer than your available -input buffer). However, the second method conserves memory since the marker -data need not be kept around after it's been processed. - -For either method, you'd normally set up marker handling after creating a -decompression object and before calling jpeg_read_header(), because the -markers of interest will typically be near the head of the file and so will -be scanned by jpeg_read_header. Once you've established a marker handling -method, it will be used for the life of that decompression object -(potentially many datastreams), unless you change it. Marker handling is -determined separately for COM markers and for each APPn marker code. - - -To save the contents of special markers in memory, call - jpeg_save_markers(cinfo, marker_code, length_limit) -where marker_code is the marker type to save, JPEG_COM or JPEG_APP0+n. -(To arrange to save all the special marker types, you need to call this -routine 17 times, for COM and APP0-APP15.) If the incoming marker is longer -than length_limit data bytes, only length_limit bytes will be saved; this -parameter allows you to avoid chewing up memory when you only need to see the -first few bytes of a potentially large marker. If you want to save all the -data, set length_limit to 0xFFFF; that is enough since marker lengths are only -16 bits. As a special case, setting length_limit to 0 prevents that marker -type from being saved at all. (That is the default behavior, in fact.) - -After jpeg_read_header() completes, you can examine the special markers by -following the cinfo->marker_list pointer chain. All the special markers in -the file appear in this list, in order of their occurrence in the file (but -omitting any markers of types you didn't ask for). Both the original data -length and the saved data length are recorded for each list entry; the latter -will not exceed length_limit for the particular marker type. Note that these -lengths exclude the marker length word, whereas the stored representation -within the JPEG file includes it. (Hence the maximum data length is really -only 65533.) - -It is possible that additional special markers appear in the file beyond the -SOS marker at which jpeg_read_header stops; if so, the marker list will be -extended during reading of the rest of the file. This is not expected to be -common, however. If you are short on memory you may want to reset the length -limit to zero for all marker types after finishing jpeg_read_header, to -ensure that the max_memory_to_use setting cannot be exceeded due to addition -of later markers. - -The marker list remains stored until you call jpeg_finish_decompress or -jpeg_abort, at which point the memory is freed and the list is set to empty. -(jpeg_destroy also releases the storage, of course.) - -Note that the library is internally interested in APP0 and APP14 markers; -if you try to set a small nonzero length limit on these types, the library -will silently force the length up to the minimum it wants. (But you can set -a zero length limit to prevent them from being saved at all.) Also, in a -16-bit environment, the maximum length limit may be constrained to less than -65533 by malloc() limitations. It is therefore best not to assume that the -effective length limit is exactly what you set it to be. - - -If you want to supply your own marker-reading routine, you do it by calling -jpeg_set_marker_processor(). A marker processor routine must have the -signature - boolean jpeg_marker_parser_method (j_decompress_ptr cinfo) -Although the marker code is not explicitly passed, the routine can find it -in cinfo->unread_marker. At the time of call, the marker proper has been -read from the data source module. The processor routine is responsible for -reading the marker length word and the remaining parameter bytes, if any. -Return TRUE to indicate success. (FALSE should be returned only if you are -using a suspending data source and it tells you to suspend. See the standard -marker processors in jdmarker.c for appropriate coding methods if you need to -use a suspending data source.) - -If you override the default APP0 or APP14 processors, it is up to you to -recognize JFIF and Adobe markers if you want colorspace recognition to occur -properly. We recommend copying and extending the default processors if you -want to do that. (A better idea is to save these marker types for later -examination by calling jpeg_save_markers(); that method doesn't interfere -with the library's own processing of these markers.) - -jpeg_set_marker_processor() and jpeg_save_markers() are mutually exclusive ---- if you call one it overrides any previous call to the other, for the -particular marker type specified. - -A simple example of an external COM processor can be found in djpeg.c. -Also, see jpegtran.c for an example of using jpeg_save_markers. - - -Raw (downsampled) image data ----------------------------- - -Some applications need to supply already-downsampled image data to the JPEG -compressor, or to receive raw downsampled data from the decompressor. The -library supports this requirement by allowing the application to write or -read raw data, bypassing the normal preprocessing or postprocessing steps. -The interface is different from the standard one and is somewhat harder to -use. If your interest is merely in bypassing color conversion, we recommend -that you use the standard interface and simply set jpeg_color_space = -in_color_space (or jpeg_color_space = out_color_space for decompression). -The mechanism described in this section is necessary only to supply or -receive downsampled image data, in which not all components have the same -dimensions. - - -To compress raw data, you must supply the data in the colorspace to be used -in the JPEG file (please read the earlier section on Special color spaces) -and downsampled to the sampling factors specified in the JPEG parameters. -You must supply the data in the format used internally by the JPEG library, -namely a JSAMPIMAGE array. This is an array of pointers to two-dimensional -arrays, each of type JSAMPARRAY. Each 2-D array holds the values for one -color component. This structure is necessary since the components are of -different sizes. If the image dimensions are not a multiple of the MCU size, -you must also pad the data correctly (usually, this is done by replicating -the last column and/or row). The data must be padded to a multiple of a DCT -block in each component: that is, each downsampled row must contain a -multiple of 8 valid samples, and there must be a multiple of 8 sample rows -for each component. (For applications such as conversion of digital TV -images, the standard image size is usually a multiple of the DCT block size, -so that no padding need actually be done.) - -The procedure for compression of raw data is basically the same as normal -compression, except that you call jpeg_write_raw_data() in place of -jpeg_write_scanlines(). Before calling jpeg_start_compress(), you must do -the following: - * Set cinfo->raw_data_in to TRUE. (It is set FALSE by jpeg_set_defaults().) - This notifies the library that you will be supplying raw data. - Furthermore, set cinfo->do_fancy_downsampling to FALSE if you want to use - real downsampled data. (It is set TRUE by jpeg_set_defaults().) - * Ensure jpeg_color_space is correct --- an explicit jpeg_set_colorspace() - call is a good idea. Note that since color conversion is bypassed, - in_color_space is ignored, except that jpeg_set_defaults() uses it to - choose the default jpeg_color_space setting. - * Ensure the sampling factors, cinfo->comp_info[i].h_samp_factor and - cinfo->comp_info[i].v_samp_factor, are correct. Since these indicate the - dimensions of the data you are supplying, it's wise to set them - explicitly, rather than assuming the library's defaults are what you want. - -To pass raw data to the library, call jpeg_write_raw_data() in place of -jpeg_write_scanlines(). The two routines work similarly except that -jpeg_write_raw_data takes a JSAMPIMAGE data array rather than JSAMPARRAY. -The scanlines count passed to and returned from jpeg_write_raw_data is -measured in terms of the component with the largest v_samp_factor. - -jpeg_write_raw_data() processes one MCU row per call, which is to say -v_samp_factor*DCTSIZE sample rows of each component. The passed num_lines -value must be at least max_v_samp_factor*DCTSIZE, and the return value will -be exactly that amount (or possibly some multiple of that amount, in future -library versions). This is true even on the last call at the bottom of the -image; don't forget to pad your data as necessary. - -The required dimensions of the supplied data can be computed for each -component as - cinfo->comp_info[i].width_in_blocks*DCTSIZE samples per row - cinfo->comp_info[i].height_in_blocks*DCTSIZE rows in image -after jpeg_start_compress() has initialized those fields. If the valid data -is smaller than this, it must be padded appropriately. For some sampling -factors and image sizes, additional dummy DCT blocks are inserted to make -the image a multiple of the MCU dimensions. The library creates such dummy -blocks itself; it does not read them from your supplied data. Therefore you -need never pad by more than DCTSIZE samples. An example may help here. -Assume 2h2v downsampling of YCbCr data, that is - cinfo->comp_info[0].h_samp_factor = 2 for Y - cinfo->comp_info[0].v_samp_factor = 2 - cinfo->comp_info[1].h_samp_factor = 1 for Cb - cinfo->comp_info[1].v_samp_factor = 1 - cinfo->comp_info[2].h_samp_factor = 1 for Cr - cinfo->comp_info[2].v_samp_factor = 1 -and suppose that the nominal image dimensions (cinfo->image_width and -cinfo->image_height) are 101x101 pixels. Then jpeg_start_compress() will -compute downsampled_width = 101 and width_in_blocks = 13 for Y, -downsampled_width = 51 and width_in_blocks = 7 for Cb and Cr (and the same -for the height fields). You must pad the Y data to at least 13*8 = 104 -columns and rows, the Cb/Cr data to at least 7*8 = 56 columns and rows. The -MCU height is max_v_samp_factor = 2 DCT rows so you must pass at least 16 -scanlines on each call to jpeg_write_raw_data(), which is to say 16 actual -sample rows of Y and 8 each of Cb and Cr. A total of 7 MCU rows are needed, -so you must pass a total of 7*16 = 112 "scanlines". The last DCT block row -of Y data is dummy, so it doesn't matter what you pass for it in the data -arrays, but the scanlines count must total up to 112 so that all of the Cb -and Cr data gets passed. - -Output suspension is supported with raw-data compression: if the data -destination module suspends, jpeg_write_raw_data() will return 0. -In this case the same data rows must be passed again on the next call. - - -Decompression with raw data output implies bypassing all postprocessing. -You must deal with the color space and sampling factors present in the -incoming file. If your application only handles, say, 2h1v YCbCr data, -you must check for and fail on other color spaces or other sampling factors. -The library will not convert to a different color space for you. - -To obtain raw data output, set cinfo->raw_data_out = TRUE before -jpeg_start_decompress() (it is set FALSE by jpeg_read_header()). Be sure to -verify that the color space and sampling factors are ones you can handle. -Furthermore, set cinfo->do_fancy_upsampling = FALSE if you want to get real -downsampled data (it is set TRUE by jpeg_read_header()). -Then call jpeg_read_raw_data() in place of jpeg_read_scanlines(). The -decompression process is otherwise the same as usual. - -jpeg_read_raw_data() returns one MCU row per call, and thus you must pass a -buffer of at least max_v_samp_factor*DCTSIZE scanlines (scanline counting is -the same as for raw-data compression). The buffer you pass must be large -enough to hold the actual data plus padding to DCT-block boundaries. As with -compression, any entirely dummy DCT blocks are not processed so you need not -allocate space for them, but the total scanline count includes them. The -above example of computing buffer dimensions for raw-data compression is -equally valid for decompression. - -Input suspension is supported with raw-data decompression: if the data source -module suspends, jpeg_read_raw_data() will return 0. You can also use -buffered-image mode to read raw data in multiple passes. - - -Really raw data: DCT coefficients ---------------------------------- - -It is possible to read or write the contents of a JPEG file as raw DCT -coefficients. This facility is mainly intended for use in lossless -transcoding between different JPEG file formats. Other possible applications -include lossless cropping of a JPEG image, lossless reassembly of a -multi-strip or multi-tile TIFF/JPEG file into a single JPEG datastream, etc. - -To read the contents of a JPEG file as DCT coefficients, open the file and do -jpeg_read_header() as usual. But instead of calling jpeg_start_decompress() -and jpeg_read_scanlines(), call jpeg_read_coefficients(). This will read the -entire image into a set of virtual coefficient-block arrays, one array per -component. The return value is a pointer to an array of virtual-array -descriptors. Each virtual array can be accessed directly using the JPEG -memory manager's access_virt_barray method (see Memory management, below, -and also read structure.txt's discussion of virtual array handling). Or, -for simple transcoding to a different JPEG file format, the array list can -just be handed directly to jpeg_write_coefficients(). - -Each block in the block arrays contains quantized coefficient values in -normal array order (not JPEG zigzag order). The block arrays contain only -DCT blocks containing real data; any entirely-dummy blocks added to fill out -interleaved MCUs at the right or bottom edges of the image are discarded -during reading and are not stored in the block arrays. (The size of each -block array can be determined from the width_in_blocks and height_in_blocks -fields of the component's comp_info entry.) This is also the data format -expected by jpeg_write_coefficients(). - -When you are done using the virtual arrays, call jpeg_finish_decompress() -to release the array storage and return the decompression object to an idle -state; or just call jpeg_destroy() if you don't need to reuse the object. - -If you use a suspending data source, jpeg_read_coefficients() will return -NULL if it is forced to suspend; a non-NULL return value indicates successful -completion. You need not test for a NULL return value when using a -non-suspending data source. - -It is also possible to call jpeg_read_coefficients() to obtain access to the -decoder's coefficient arrays during a normal decode cycle in buffered-image -mode. This frammish might be useful for progressively displaying an incoming -image and then re-encoding it without loss. To do this, decode in buffered- -image mode as discussed previously, then call jpeg_read_coefficients() after -the last jpeg_finish_output() call. The arrays will be available for your use -until you call jpeg_finish_decompress(). - - -To write the contents of a JPEG file as DCT coefficients, you must provide -the DCT coefficients stored in virtual block arrays. You can either pass -block arrays read from an input JPEG file by jpeg_read_coefficients(), or -allocate virtual arrays from the JPEG compression object and fill them -yourself. In either case, jpeg_write_coefficients() is substituted for -jpeg_start_compress() and jpeg_write_scanlines(). Thus the sequence is - * Create compression object - * Set all compression parameters as necessary - * Request virtual arrays if needed - * jpeg_write_coefficients() - * jpeg_finish_compress() - * Destroy or re-use compression object -jpeg_write_coefficients() is passed a pointer to an array of virtual block -array descriptors; the number of arrays is equal to cinfo.num_components. - -The virtual arrays need only have been requested, not realized, before -jpeg_write_coefficients() is called. A side-effect of -jpeg_write_coefficients() is to realize any virtual arrays that have been -requested from the compression object's memory manager. Thus, when obtaining -the virtual arrays from the compression object, you should fill the arrays -after calling jpeg_write_coefficients(). The data is actually written out -when you call jpeg_finish_compress(); jpeg_write_coefficients() only writes -the file header. - -When writing raw DCT coefficients, it is crucial that the JPEG quantization -tables and sampling factors match the way the data was encoded, or the -resulting file will be invalid. For transcoding from an existing JPEG file, -we recommend using jpeg_copy_critical_parameters(). This routine initializes -all the compression parameters to default values (like jpeg_set_defaults()), -then copies the critical information from a source decompression object. -The decompression object should have just been used to read the entire -JPEG input file --- that is, it should be awaiting jpeg_finish_decompress(). - -jpeg_write_coefficients() marks all tables stored in the compression object -as needing to be written to the output file (thus, it acts like -jpeg_start_compress(cinfo, TRUE)). This is for safety's sake, to avoid -emitting abbreviated JPEG files by accident. If you really want to emit an -abbreviated JPEG file, call jpeg_suppress_tables(), or set the tables' -individual sent_table flags, between calling jpeg_write_coefficients() and -jpeg_finish_compress(). - - -Progress monitoring -------------------- - -Some applications may need to regain control from the JPEG library every so -often. The typical use of this feature is to produce a percent-done bar or -other progress display. (For a simple example, see cjpeg.c or djpeg.c.) -Although you do get control back frequently during the data-transferring pass -(the jpeg_read_scanlines or jpeg_write_scanlines loop), any additional passes -will occur inside jpeg_finish_compress or jpeg_start_decompress; those -routines may take a long time to execute, and you don't get control back -until they are done. - -You can define a progress-monitor routine which will be called periodically -by the library. No guarantees are made about how often this call will occur, -so we don't recommend you use it for mouse tracking or anything like that. -At present, a call will occur once per MCU row, scanline, or sample row -group, whichever unit is convenient for the current processing mode; so the -wider the image, the longer the time between calls. During the data -transferring pass, only one call occurs per call of jpeg_read_scanlines or -jpeg_write_scanlines, so don't pass a large number of scanlines at once if -you want fine resolution in the progress count. (If you really need to use -the callback mechanism for time-critical tasks like mouse tracking, you could -insert additional calls inside some of the library's inner loops.) - -To establish a progress-monitor callback, create a struct jpeg_progress_mgr, -fill in its progress_monitor field with a pointer to your callback routine, -and set cinfo->progress to point to the struct. The callback will be called -whenever cinfo->progress is non-NULL. (This pointer is set to NULL by -jpeg_create_compress or jpeg_create_decompress; the library will not change -it thereafter. So if you allocate dynamic storage for the progress struct, -make sure it will live as long as the JPEG object does. Allocating from the -JPEG memory manager with lifetime JPOOL_PERMANENT will work nicely.) You -can use the same callback routine for both compression and decompression. - -The jpeg_progress_mgr struct contains four fields which are set by the library: - long pass_counter; /* work units completed in this pass */ - long pass_limit; /* total number of work units in this pass */ - int completed_passes; /* passes completed so far */ - int total_passes; /* total number of passes expected */ -During any one pass, pass_counter increases from 0 up to (not including) -pass_limit; the step size is usually but not necessarily 1. The pass_limit -value may change from one pass to another. The expected total number of -passes is in total_passes, and the number of passes already completed is in -completed_passes. Thus the fraction of work completed may be estimated as - completed_passes + (pass_counter/pass_limit) - -------------------------------------------- - total_passes -ignoring the fact that the passes may not be equal amounts of work. - -When decompressing, pass_limit can even change within a pass, because it -depends on the number of scans in the JPEG file, which isn't always known in -advance. The computed fraction-of-work-done may jump suddenly (if the library -discovers it has overestimated the number of scans) or even decrease (in the -opposite case). It is not wise to put great faith in the work estimate. - -When using the decompressor's buffered-image mode, the progress monitor work -estimate is likely to be completely unhelpful, because the library has no way -to know how many output passes will be demanded of it. Currently, the library -sets total_passes based on the assumption that there will be one more output -pass if the input file end hasn't yet been read (jpeg_input_complete() isn't -TRUE), but no more output passes if the file end has been reached when the -output pass is started. This means that total_passes will rise as additional -output passes are requested. If you have a way of determining the input file -size, estimating progress based on the fraction of the file that's been read -will probably be more useful than using the library's value. - - -Memory management ------------------ - -This section covers some key facts about the JPEG library's built-in memory -manager. For more info, please read structure.txt's section about the memory -manager, and consult the source code if necessary. - -All memory and temporary file allocation within the library is done via the -memory manager. If necessary, you can replace the "back end" of the memory -manager to control allocation yourself (for example, if you don't want the -library to use malloc() and free() for some reason). - -Some data is allocated "permanently" and will not be freed until the JPEG -object is destroyed. Most data is allocated "per image" and is freed by -jpeg_finish_compress, jpeg_finish_decompress, or jpeg_abort. You can call the -memory manager yourself to allocate structures that will automatically be -freed at these times. Typical code for this is - ptr = (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, size); -Use JPOOL_PERMANENT to get storage that lasts as long as the JPEG object. -Use alloc_large instead of alloc_small for anything bigger than a few Kbytes. -There are also alloc_sarray and alloc_barray routines that automatically -build 2-D sample or block arrays. - -The library's minimum space requirements to process an image depend on the -image's width, but not on its height, because the library ordinarily works -with "strip" buffers that are as wide as the image but just a few rows high. -Some operating modes (eg, two-pass color quantization) require full-image -buffers. Such buffers are treated as "virtual arrays": only the current strip -need be in memory, and the rest can be swapped out to a temporary file. - -If you use the simplest memory manager back end (jmemnobs.c), then no -temporary files are used; virtual arrays are simply malloc()'d. Images bigger -than memory can be processed only if your system supports virtual memory. -The other memory manager back ends support temporary files of various flavors -and thus work in machines without virtual memory. They may also be useful on -Unix machines if you need to process images that exceed available swap space. - -When using temporary files, the library will make the in-memory buffers for -its virtual arrays just big enough to stay within a "maximum memory" setting. -Your application can set this limit by setting cinfo->mem->max_memory_to_use -after creating the JPEG object. (Of course, there is still a minimum size for -the buffers, so the max-memory setting is effective only if it is bigger than -the minimum space needed.) If you allocate any large structures yourself, you -must allocate them before jpeg_start_compress() or jpeg_start_decompress() in -order to have them counted against the max memory limit. Also keep in mind -that space allocated with alloc_small() is ignored, on the assumption that -it's too small to be worth worrying about; so a reasonable safety margin -should be left when setting max_memory_to_use. - -If you use the jmemname.c or jmemdos.c memory manager back end, it is -important to clean up the JPEG object properly to ensure that the temporary -files get deleted. (This is especially crucial with jmemdos.c, where the -"temporary files" may be extended-memory segments; if they are not freed, -DOS will require a reboot to recover the memory.) Thus, with these memory -managers, it's a good idea to provide a signal handler that will trap any -early exit from your program. The handler should call either jpeg_abort() -or jpeg_destroy() for any active JPEG objects. A handler is not needed with -jmemnobs.c, and shouldn't be necessary with jmemansi.c or jmemmac.c either, -since the C library is supposed to take care of deleting files made with -tmpfile(). - - -Memory usage ------------- - -Working memory requirements while performing compression or decompression -depend on image dimensions, image characteristics (such as colorspace and -JPEG process), and operating mode (application-selected options). - -As of v6b, the decompressor requires: - 1. About 24K in more-or-less-fixed-size data. This varies a bit depending - on operating mode and image characteristics (particularly color vs. - grayscale), but it doesn't depend on image dimensions. - 2. Strip buffers (of size proportional to the image width) for IDCT and - upsampling results. The worst case for commonly used sampling factors - is about 34 bytes * width in pixels for a color image. A grayscale image - only needs about 8 bytes per pixel column. - 3. A full-image DCT coefficient buffer is needed to decode a multi-scan JPEG - file (including progressive JPEGs), or whenever you select buffered-image - mode. This takes 2 bytes/coefficient. At typical 2x2 sampling, that's - 3 bytes per pixel for a color image. Worst case (1x1 sampling) requires - 6 bytes/pixel. For grayscale, figure 2 bytes/pixel. - 4. To perform 2-pass color quantization, the decompressor also needs a - 128K color lookup table and a full-image pixel buffer (3 bytes/pixel). -This does not count any memory allocated by the application, such as a -buffer to hold the final output image. - -The above figures are valid for 8-bit JPEG data precision and a machine with -32-bit ints. For 12-bit JPEG data, double the size of the strip buffers and -quantization pixel buffer. The "fixed-size" data will be somewhat smaller -with 16-bit ints, larger with 64-bit ints. Also, CMYK or other unusual -color spaces will require different amounts of space. - -The full-image coefficient and pixel buffers, if needed at all, do not -have to be fully RAM resident; you can have the library use temporary -files instead when the total memory usage would exceed a limit you set. -(But if your OS supports virtual memory, it's probably better to just use -jmemnobs and let the OS do the swapping.) - -The compressor's memory requirements are similar, except that it has no need -for color quantization. Also, it needs a full-image DCT coefficient buffer -if Huffman-table optimization is asked for, even if progressive mode is not -requested. - -If you need more detailed information about memory usage in a particular -situation, you can enable the MEM_STATS code in jmemmgr.c. - - -Library compile-time options ----------------------------- - -A number of compile-time options are available by modifying jmorecfg.h. - -The JPEG standard provides for both the baseline 8-bit DCT process and -a 12-bit DCT process. The IJG code supports 12-bit JPEG if you define -BITS_IN_JSAMPLE as 12 rather than 8. Note that this causes JSAMPLE to be -larger than a char, so it affects the surrounding application's image data. -The sample applications cjpeg and djpeg can support 12-bit mode only for PPM -and GIF file formats; you must disable the other file formats to compile a -12-bit cjpeg or djpeg. (install.txt has more information about that.) -At present, a 12-bit library can handle *only* 12-bit images, not both -precisions. (If you need to include both 8- and 12-bit libraries in a single -application, you could probably do it by defining NEED_SHORT_EXTERNAL_NAMES -for just one of the copies. You'd have to access the 8-bit and 12-bit copies -from separate application source files. This is untested ... if you try it, -we'd like to hear whether it works!) - -Note that a 12-bit library always compresses in Huffman optimization mode, -in order to generate valid Huffman tables. This is necessary because our -default Huffman tables only cover 8-bit data. If you need to output 12-bit -files in one pass, you'll have to supply suitable default Huffman tables. -You may also want to supply your own DCT quantization tables; the existing -quality-scaling code has been developed for 8-bit use, and probably doesn't -generate especially good tables for 12-bit. - -The maximum number of components (color channels) in the image is determined -by MAX_COMPONENTS. The JPEG standard allows up to 255 components, but we -expect that few applications will need more than four or so. - -On machines with unusual data type sizes, you may be able to improve -performance or reduce memory space by tweaking the various typedefs in -jmorecfg.h. In particular, on some RISC CPUs, access to arrays of "short"s -is quite slow; consider trading memory for speed by making JCOEF, INT16, and -UINT16 be "int" or "unsigned int". UINT8 is also a candidate to become int. -You probably don't want to make JSAMPLE be int unless you have lots of memory -to burn. - -You can reduce the size of the library by compiling out various optional -functions. To do this, undefine xxx_SUPPORTED symbols as necessary. - -You can also save a few K by not having text error messages in the library; -the standard error message table occupies about 5Kb. This is particularly -reasonable for embedded applications where there's no good way to display -a message anyway. To do this, remove the creation of the message table -(jpeg_std_message_table[]) from jerror.c, and alter format_message to do -something reasonable without it. You could output the numeric value of the -message code number, for example. If you do this, you can also save a couple -more K by modifying the TRACEMSn() macros in jerror.h to expand to nothing; -you don't need trace capability anyway, right? - - -Portability considerations --------------------------- - -The JPEG library has been written to be extremely portable; the sample -applications cjpeg and djpeg are slightly less so. This section summarizes -the design goals in this area. (If you encounter any bugs that cause the -library to be less portable than is claimed here, we'd appreciate hearing -about them.) - -The code works fine on ANSI C, C++, and pre-ANSI C compilers, using any of -the popular system include file setups, and some not-so-popular ones too. -See install.txt for configuration procedures. - -The code is not dependent on the exact sizes of the C data types. As -distributed, we make the assumptions that - char is at least 8 bits wide - short is at least 16 bits wide - int is at least 16 bits wide - long is at least 32 bits wide -(These are the minimum requirements of the ANSI C standard.) Wider types will -work fine, although memory may be used inefficiently if char is much larger -than 8 bits or short is much bigger than 16 bits. The code should work -equally well with 16- or 32-bit ints. - -In a system where these assumptions are not met, you may be able to make the -code work by modifying the typedefs in jmorecfg.h. However, you will probably -have difficulty if int is less than 16 bits wide, since references to plain -int abound in the code. - -char can be either signed or unsigned, although the code runs faster if an -unsigned char type is available. If char is wider than 8 bits, you will need -to redefine JOCTET and/or provide custom data source/destination managers so -that JOCTET represents exactly 8 bits of data on external storage. - -The JPEG library proper does not assume ASCII representation of characters. -But some of the image file I/O modules in cjpeg/djpeg do have ASCII -dependencies in file-header manipulation; so does cjpeg's select_file_type() -routine. - -The JPEG library does not rely heavily on the C library. In particular, C -stdio is used only by the data source/destination modules and the error -handler, all of which are application-replaceable. (cjpeg/djpeg are more -heavily dependent on stdio.) malloc and free are called only from the memory -manager "back end" module, so you can use a different memory allocator by -replacing that one file. - -The code generally assumes that C names must be unique in the first 15 -characters. However, global function names can be made unique in the -first 6 characters by defining NEED_SHORT_EXTERNAL_NAMES. - -More info about porting the code may be gleaned by reading jconfig.txt, -jmorecfg.h, and jinclude.h. - - -Notes for MS-DOS implementors ------------------------------ - -The IJG code is designed to work efficiently in 80x86 "small" or "medium" -memory models (i.e., data pointers are 16 bits unless explicitly declared -"far"; code pointers can be either size). You may be able to use small -model to compile cjpeg or djpeg by itself, but you will probably have to use -medium model for any larger application. This won't make much difference in -performance. You *will* take a noticeable performance hit if you use a -large-data memory model (perhaps 10%-25%), and you should avoid "huge" model -if at all possible. - -The JPEG library typically needs 2Kb-3Kb of stack space. It will also -malloc about 20K-30K of near heap space while executing (and lots of far -heap, but that doesn't count in this calculation). This figure will vary -depending on selected operating mode, and to a lesser extent on image size. -There is also about 5Kb-6Kb of constant data which will be allocated in the -near data segment (about 4Kb of this is the error message table). -Thus you have perhaps 20K available for other modules' static data and near -heap space before you need to go to a larger memory model. The C library's -static data will account for several K of this, but that still leaves a good -deal for your needs. (If you are tight on space, you could reduce the sizes -of the I/O buffers allocated by jdatasrc.c and jdatadst.c, say from 4K to -1K. Another possibility is to move the error message table to far memory; -this should be doable with only localized hacking on jerror.c.) - -About 2K of the near heap space is "permanent" memory that will not be -released until you destroy the JPEG object. This is only an issue if you -save a JPEG object between compression or decompression operations. - -Far data space may also be a tight resource when you are dealing with large -images. The most memory-intensive case is decompression with two-pass color -quantization, or single-pass quantization to an externally supplied color -map. This requires a 128Kb color lookup table plus strip buffers amounting -to about 40 bytes per column for typical sampling ratios (eg, about 25600 -bytes for a 640-pixel-wide image). You may not be able to process wide -images if you have large data structures of your own. - -Of course, all of these concerns vanish if you use a 32-bit flat-memory-model -compiler, such as DJGPP or Watcom C. We highly recommend flat model if you -can use it; the JPEG library is significantly faster in flat model. diff --git a/jpg/ltmain.sh b/jpg/ltmain.sh deleted file mode 100644 index 63ae69d..0000000 --- a/jpg/ltmain.sh +++ /dev/null @@ -1,9655 +0,0 @@ - -# libtool (GNU libtool) 2.4.2 -# Written by Gordon Matzigkeit , 1996 - -# Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2003, 2004, 2005, 2006, -# 2007, 2008, 2009, 2010, 2011 Free Software Foundation, Inc. -# This is free software; see the source for copying conditions. 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Be careful to quote the path - # and the sed script, to avoid splitting on whitespace, but - # also don't use non-portable quotes within backquotes within - # quotes we have to do it in 2 steps: - extractedcf=`$SED -n -e "$sed_extractcf" < "$progpath"` - eval "$extractedcf" - else - func_error "ignoring unknown tag $tagname" - fi - ;; - esac -} - -# func_check_version_match -# Ensure that we are using m4 macros, and libtool script from the same -# release of libtool. -func_check_version_match () -{ - if test "$package_revision" != "$macro_revision"; then - if test "$VERSION" != "$macro_version"; then - if test -z "$macro_version"; then - cat >&2 <<_LT_EOF -$progname: Version mismatch error. This is $PACKAGE $VERSION, but the -$progname: definition of this LT_INIT comes from an older release. -$progname: You should recreate aclocal.m4 with macros from $PACKAGE $VERSION -$progname: and run autoconf again. -_LT_EOF - else - cat >&2 <<_LT_EOF -$progname: Version mismatch error. This is $PACKAGE $VERSION, but the -$progname: definition of this LT_INIT comes from $PACKAGE $macro_version. -$progname: You should recreate aclocal.m4 with macros from $PACKAGE $VERSION -$progname: and run autoconf again. -_LT_EOF - fi - else - cat >&2 <<_LT_EOF -$progname: Version mismatch error. This is $PACKAGE $VERSION, revision $package_revision, -$progname: but the definition of this LT_INIT comes from revision $macro_revision. -$progname: You should recreate aclocal.m4 with macros from revision $package_revision -$progname: of $PACKAGE $VERSION and run autoconf again. -_LT_EOF - fi - - exit $EXIT_MISMATCH - fi -} - - -# Shorthand for --mode=foo, only valid as the first argument -case $1 in -clean|clea|cle|cl) - shift; set dummy --mode clean ${1+"$@"}; shift - ;; -compile|compil|compi|comp|com|co|c) - shift; set dummy --mode compile ${1+"$@"}; shift - ;; -execute|execut|execu|exec|exe|ex|e) - shift; set dummy --mode execute ${1+"$@"}; shift - ;; -finish|finis|fini|fin|fi|f) - shift; set dummy --mode finish ${1+"$@"}; shift - ;; -install|instal|insta|inst|ins|in|i) - shift; set dummy --mode install ${1+"$@"}; shift - ;; -link|lin|li|l) - shift; set dummy --mode link ${1+"$@"}; shift - ;; -uninstall|uninstal|uninsta|uninst|unins|unin|uni|un|u) - shift; set dummy --mode uninstall ${1+"$@"}; shift - ;; -esac - - - -# Option defaults: -opt_debug=: -opt_dry_run=false -opt_config=false -opt_preserve_dup_deps=false -opt_features=false -opt_finish=false -opt_help=false -opt_help_all=false -opt_silent=: -opt_warning=: -opt_verbose=: -opt_silent=false -opt_verbose=false - - -# Parse options once, thoroughly. This comes as soon as possible in the -# script to make things like `--version' happen as quickly as we can. -{ - # this just eases exit handling - while test $# -gt 0; do - opt="$1" - shift - case $opt in - --debug|-x) opt_debug='set -x' - func_echo "enabling shell trace mode" - $opt_debug - ;; - --dry-run|--dryrun|-n) - opt_dry_run=: - ;; - --config) - opt_config=: -func_config - ;; - --dlopen|-dlopen) - optarg="$1" - opt_dlopen="${opt_dlopen+$opt_dlopen -}$optarg" - shift - ;; - --preserve-dup-deps) - opt_preserve_dup_deps=: - ;; - --features) - opt_features=: -func_features - ;; - --finish) - opt_finish=: -set dummy --mode finish ${1+"$@"}; shift - ;; - --help) - opt_help=: - ;; - --help-all) - opt_help_all=: -opt_help=': help-all' - ;; - --mode) - test $# = 0 && func_missing_arg $opt && break - optarg="$1" - opt_mode="$optarg" -case $optarg in - # Valid mode arguments: - clean|compile|execute|finish|install|link|relink|uninstall) ;; - - # Catch anything else as an error - *) func_error "invalid argument for $opt" - exit_cmd=exit - break - ;; -esac - shift - ;; - --no-silent|--no-quiet) - opt_silent=false -func_append preserve_args " $opt" - ;; - --no-warning|--no-warn) - opt_warning=false -func_append preserve_args " $opt" - ;; - --no-verbose) - opt_verbose=false -func_append preserve_args " $opt" - ;; - --silent|--quiet) - opt_silent=: -func_append preserve_args " $opt" - opt_verbose=false - ;; - --verbose|-v) - opt_verbose=: -func_append preserve_args " $opt" -opt_silent=false - ;; - --tag) - test $# = 0 && func_missing_arg $opt && break - optarg="$1" - opt_tag="$optarg" -func_append preserve_args " $opt $optarg" -func_enable_tag "$optarg" - shift - ;; - - -\?|-h) func_usage ;; - --help) func_help ;; - --version) func_version ;; - - # Separate optargs to long options: - --*=*) - func_split_long_opt "$opt" - set dummy "$func_split_long_opt_name" "$func_split_long_opt_arg" ${1+"$@"} - shift - ;; - - # Separate non-argument short options: - -\?*|-h*|-n*|-v*) - func_split_short_opt "$opt" - set dummy "$func_split_short_opt_name" "-$func_split_short_opt_arg" ${1+"$@"} - shift - ;; - - --) break ;; - -*) func_fatal_help "unrecognized option \`$opt'" ;; - *) set dummy "$opt" ${1+"$@"}; shift; break ;; - esac - done - - # Validate options: - - # save first non-option argument - if test "$#" -gt 0; then - nonopt="$opt" - shift - fi - - # preserve --debug - test "$opt_debug" = : || func_append preserve_args " --debug" - - case $host in - *cygwin* | *mingw* | *pw32* | *cegcc*) - # don't eliminate duplications in $postdeps and $predeps - opt_duplicate_compiler_generated_deps=: - ;; - *) - opt_duplicate_compiler_generated_deps=$opt_preserve_dup_deps - ;; - esac - - $opt_help || { - # Sanity checks first: - func_check_version_match - - if test "$build_libtool_libs" != yes && test "$build_old_libs" != yes; then - func_fatal_configuration "not configured to build any kind of library" - fi - - # Darwin sucks - eval std_shrext=\"$shrext_cmds\" - - # Only execute mode is allowed to have -dlopen flags. - if test -n "$opt_dlopen" && test "$opt_mode" != execute; then - func_error "unrecognized option \`-dlopen'" - $ECHO "$help" 1>&2 - exit $EXIT_FAILURE - fi - - # Change the help message to a mode-specific one. - generic_help="$help" - help="Try \`$progname --help --mode=$opt_mode' for more information." - } - - - # Bail if the options were screwed - $exit_cmd $EXIT_FAILURE -} - - - - -## ----------- ## -## Main. ## -## ----------- ## - -# func_lalib_p file -# True iff FILE is a libtool `.la' library or `.lo' object file. -# This function is only a basic sanity check; it will hardly flush out -# determined imposters. -func_lalib_p () -{ - test -f "$1" && - $SED -e 4q "$1" 2>/dev/null \ - | $GREP "^# Generated by .*$PACKAGE" > /dev/null 2>&1 -} - -# func_lalib_unsafe_p file -# True iff FILE is a libtool `.la' library or `.lo' object file. -# This function implements the same check as func_lalib_p without -# resorting to external programs. To this end, it redirects stdin and -# closes it afterwards, without saving the original file descriptor. -# As a safety measure, use it only where a negative result would be -# fatal anyway. Works if `file' does not exist. -func_lalib_unsafe_p () -{ - lalib_p=no - if test -f "$1" && test -r "$1" && exec 5<&0 <"$1"; then - for lalib_p_l in 1 2 3 4 - do - read lalib_p_line - case "$lalib_p_line" in - \#\ Generated\ by\ *$PACKAGE* ) lalib_p=yes; break;; - esac - done - exec 0<&5 5<&- - fi - test "$lalib_p" = yes -} - -# func_ltwrapper_script_p file -# True iff FILE is a libtool wrapper script -# This function is only a basic sanity check; it will hardly flush out -# determined imposters. -func_ltwrapper_script_p () -{ - func_lalib_p "$1" -} - -# func_ltwrapper_executable_p file -# True iff FILE is a libtool wrapper executable -# This function is only a basic sanity check; it will hardly flush out -# determined imposters. -func_ltwrapper_executable_p () -{ - func_ltwrapper_exec_suffix= - case $1 in - *.exe) ;; - *) func_ltwrapper_exec_suffix=.exe ;; - esac - $GREP "$magic_exe" "$1$func_ltwrapper_exec_suffix" >/dev/null 2>&1 -} - -# func_ltwrapper_scriptname file -# Assumes file is an ltwrapper_executable -# uses $file to determine the appropriate filename for a -# temporary ltwrapper_script. -func_ltwrapper_scriptname () -{ - func_dirname_and_basename "$1" "" "." - func_stripname '' '.exe' "$func_basename_result" - func_ltwrapper_scriptname_result="$func_dirname_result/$objdir/${func_stripname_result}_ltshwrapper" -} - -# func_ltwrapper_p file -# True iff FILE is a libtool wrapper script or wrapper executable -# This function is only a basic sanity check; it will hardly flush out -# determined imposters. -func_ltwrapper_p () -{ - func_ltwrapper_script_p "$1" || func_ltwrapper_executable_p "$1" -} - - -# func_execute_cmds commands fail_cmd -# Execute tilde-delimited COMMANDS. -# If FAIL_CMD is given, eval that upon failure. -# FAIL_CMD may read-access the current command in variable CMD! -func_execute_cmds () -{ - $opt_debug - save_ifs=$IFS; IFS='~' - for cmd in $1; do - IFS=$save_ifs - eval cmd=\"$cmd\" - func_show_eval "$cmd" "${2-:}" - done - IFS=$save_ifs -} - - -# func_source file -# Source FILE, adding directory component if necessary. -# Note that it is not necessary on cygwin/mingw to append a dot to -# FILE even if both FILE and FILE.exe exist: automatic-append-.exe -# behavior happens only for exec(3), not for open(2)! Also, sourcing -# `FILE.' does not work on cygwin managed mounts. -func_source () -{ - $opt_debug - case $1 in - */* | *\\*) . "$1" ;; - *) . "./$1" ;; - esac -} - - -# func_resolve_sysroot PATH -# Replace a leading = in PATH with a sysroot. Store the result into -# func_resolve_sysroot_result -func_resolve_sysroot () -{ - func_resolve_sysroot_result=$1 - case $func_resolve_sysroot_result in - =*) - func_stripname '=' '' "$func_resolve_sysroot_result" - func_resolve_sysroot_result=$lt_sysroot$func_stripname_result - ;; - esac -} - -# func_replace_sysroot PATH -# If PATH begins with the sysroot, replace it with = and -# store the result into func_replace_sysroot_result. -func_replace_sysroot () -{ - case "$lt_sysroot:$1" in - ?*:"$lt_sysroot"*) - func_stripname "$lt_sysroot" '' "$1" - func_replace_sysroot_result="=$func_stripname_result" - ;; - *) - # Including no sysroot. - func_replace_sysroot_result=$1 - ;; - esac -} - -# func_infer_tag arg -# Infer tagged configuration to use if any are available and -# if one wasn't chosen via the "--tag" command line option. -# Only attempt this if the compiler in the base compile -# command doesn't match the default compiler. -# arg is usually of the form 'gcc ...' -func_infer_tag () -{ - $opt_debug - if test -n "$available_tags" && test -z "$tagname"; then - CC_quoted= - for arg in $CC; do - func_append_quoted CC_quoted "$arg" - done - CC_expanded=`func_echo_all $CC` - CC_quoted_expanded=`func_echo_all $CC_quoted` - case $@ in - # Blanks in the command may have been stripped by the calling shell, - # but not from the CC environment variable when configure was run. - " $CC "* | "$CC "* | " $CC_expanded "* | "$CC_expanded "* | \ - " $CC_quoted"* | "$CC_quoted "* | " $CC_quoted_expanded "* | "$CC_quoted_expanded "*) ;; - # Blanks at the start of $base_compile will cause this to fail - # if we don't check for them as well. - *) - for z in $available_tags; do - if $GREP "^# ### BEGIN LIBTOOL TAG CONFIG: $z$" < "$progpath" > /dev/null; then - # Evaluate the configuration. - eval "`${SED} -n -e '/^# ### BEGIN LIBTOOL TAG CONFIG: '$z'$/,/^# ### END LIBTOOL TAG CONFIG: '$z'$/p' < $progpath`" - CC_quoted= - for arg in $CC; do - # Double-quote args containing other shell metacharacters. - func_append_quoted CC_quoted "$arg" - done - CC_expanded=`func_echo_all $CC` - CC_quoted_expanded=`func_echo_all $CC_quoted` - case "$@ " in - " $CC "* | "$CC "* | " $CC_expanded "* | "$CC_expanded "* | \ - " $CC_quoted"* | "$CC_quoted "* | " $CC_quoted_expanded "* | "$CC_quoted_expanded "*) - # The compiler in the base compile command matches - # the one in the tagged configuration. - # Assume this is the tagged configuration we want. - tagname=$z - break - ;; - esac - fi - done - # If $tagname still isn't set, then no tagged configuration - # was found and let the user know that the "--tag" command - # line option must be used. - if test -z "$tagname"; then - func_echo "unable to infer tagged configuration" - func_fatal_error "specify a tag with \`--tag'" -# else -# func_verbose "using $tagname tagged configuration" - fi - ;; - esac - fi -} - - - -# func_write_libtool_object output_name pic_name nonpic_name -# Create a libtool object file (analogous to a ".la" file), -# but don't create it if we're doing a dry run. -func_write_libtool_object () -{ - write_libobj=${1} - if test "$build_libtool_libs" = yes; then - write_lobj=\'${2}\' - else - write_lobj=none - fi - - if test "$build_old_libs" = yes; then - write_oldobj=\'${3}\' - else - write_oldobj=none - fi - - $opt_dry_run || { - cat >${write_libobj}T </dev/null` - if test "$?" -eq 0 && test -n "${func_convert_core_file_wine_to_w32_tmp}"; then - func_convert_core_file_wine_to_w32_result=`$ECHO "$func_convert_core_file_wine_to_w32_tmp" | - $SED -e "$lt_sed_naive_backslashify"` - else - func_convert_core_file_wine_to_w32_result= - fi - fi -} -# end: func_convert_core_file_wine_to_w32 - - -# func_convert_core_path_wine_to_w32 ARG -# Helper function used by path conversion functions when $build is *nix, and -# $host is mingw, cygwin, or some other w32 environment. Relies on a correctly -# configured wine environment available, with the winepath program in $build's -# $PATH. Assumes ARG has no leading or trailing path separator characters. -# -# ARG is path to be converted from $build format to win32. -# Result is available in $func_convert_core_path_wine_to_w32_result. -# Unconvertible file (directory) names in ARG are skipped; if no directory names -# are convertible, then the result may be empty. -func_convert_core_path_wine_to_w32 () -{ - $opt_debug - # unfortunately, winepath doesn't convert paths, only file names - func_convert_core_path_wine_to_w32_result="" - if test -n "$1"; then - oldIFS=$IFS - IFS=: - for func_convert_core_path_wine_to_w32_f in $1; do - IFS=$oldIFS - func_convert_core_file_wine_to_w32 "$func_convert_core_path_wine_to_w32_f" - if test -n "$func_convert_core_file_wine_to_w32_result" ; then - if test -z "$func_convert_core_path_wine_to_w32_result"; then - func_convert_core_path_wine_to_w32_result="$func_convert_core_file_wine_to_w32_result" - else - func_append func_convert_core_path_wine_to_w32_result ";$func_convert_core_file_wine_to_w32_result" - fi - fi - done - IFS=$oldIFS - fi -} -# end: func_convert_core_path_wine_to_w32 - - -# func_cygpath ARGS... -# Wrapper around calling the cygpath program via LT_CYGPATH. This is used when -# when (1) $build is *nix and Cygwin is hosted via a wine environment; or (2) -# $build is MSYS and $host is Cygwin, or (3) $build is Cygwin. In case (1) or -# (2), returns the Cygwin file name or path in func_cygpath_result (input -# file name or path is assumed to be in w32 format, as previously converted -# from $build's *nix or MSYS format). In case (3), returns the w32 file name -# or path in func_cygpath_result (input file name or path is assumed to be in -# Cygwin format). Returns an empty string on error. -# -# ARGS are passed to cygpath, with the last one being the file name or path to -# be converted. -# -# Specify the absolute *nix (or w32) name to cygpath in the LT_CYGPATH -# environment variable; do not put it in $PATH. -func_cygpath () -{ - $opt_debug - if test -n "$LT_CYGPATH" && test -f "$LT_CYGPATH"; then - func_cygpath_result=`$LT_CYGPATH "$@" 2>/dev/null` - if test "$?" -ne 0; then - # on failure, ensure result is empty - func_cygpath_result= - fi - else - func_cygpath_result= - func_error "LT_CYGPATH is empty or specifies non-existent file: \`$LT_CYGPATH'" - fi -} -#end: func_cygpath - - -# func_convert_core_msys_to_w32 ARG -# Convert file name or path ARG from MSYS format to w32 format. Return -# result in func_convert_core_msys_to_w32_result. -func_convert_core_msys_to_w32 () -{ - $opt_debug - # awkward: cmd appends spaces to result - func_convert_core_msys_to_w32_result=`( cmd //c echo "$1" ) 2>/dev/null | - $SED -e 's/[ ]*$//' -e "$lt_sed_naive_backslashify"` -} -#end: func_convert_core_msys_to_w32 - - -# func_convert_file_check ARG1 ARG2 -# Verify that ARG1 (a file name in $build format) was converted to $host -# format in ARG2. Otherwise, emit an error message, but continue (resetting -# func_to_host_file_result to ARG1). -func_convert_file_check () -{ - $opt_debug - if test -z "$2" && test -n "$1" ; then - func_error "Could not determine host file name corresponding to" - func_error " \`$1'" - func_error "Continuing, but uninstalled executables may not work." - # Fallback: - func_to_host_file_result="$1" - fi -} -# end func_convert_file_check - - -# func_convert_path_check FROM_PATHSEP TO_PATHSEP FROM_PATH TO_PATH -# Verify that FROM_PATH (a path in $build format) was converted to $host -# format in TO_PATH. Otherwise, emit an error message, but continue, resetting -# func_to_host_file_result to a simplistic fallback value (see below). -func_convert_path_check () -{ - $opt_debug - if test -z "$4" && test -n "$3"; then - func_error "Could not determine the host path corresponding to" - func_error " \`$3'" - func_error "Continuing, but uninstalled executables may not work." - # Fallback. This is a deliberately simplistic "conversion" and - # should not be "improved". See libtool.info. - if test "x$1" != "x$2"; then - lt_replace_pathsep_chars="s|$1|$2|g" - func_to_host_path_result=`echo "$3" | - $SED -e "$lt_replace_pathsep_chars"` - else - func_to_host_path_result="$3" - fi - fi -} -# end func_convert_path_check - - -# func_convert_path_front_back_pathsep FRONTPAT BACKPAT REPL ORIG -# Modifies func_to_host_path_result by prepending REPL if ORIG matches FRONTPAT -# and appending REPL if ORIG matches BACKPAT. -func_convert_path_front_back_pathsep () -{ - $opt_debug - case $4 in - $1 ) func_to_host_path_result="$3$func_to_host_path_result" - ;; - esac - case $4 in - $2 ) func_append func_to_host_path_result "$3" - ;; - esac -} -# end func_convert_path_front_back_pathsep - - -################################################## -# $build to $host FILE NAME CONVERSION FUNCTIONS # -################################################## -# invoked via `$to_host_file_cmd ARG' -# -# In each case, ARG is the path to be converted from $build to $host format. -# Result will be available in $func_to_host_file_result. - - -# func_to_host_file ARG -# Converts the file name ARG from $build format to $host format. Return result -# in func_to_host_file_result. -func_to_host_file () -{ - $opt_debug - $to_host_file_cmd "$1" -} -# end func_to_host_file - - -# func_to_tool_file ARG LAZY -# converts the file name ARG from $build format to toolchain format. Return -# result in func_to_tool_file_result. If the conversion in use is listed -# in (the comma separated) LAZY, no conversion takes place. -func_to_tool_file () -{ - $opt_debug - case ,$2, in - *,"$to_tool_file_cmd",*) - func_to_tool_file_result=$1 - ;; - *) - $to_tool_file_cmd "$1" - func_to_tool_file_result=$func_to_host_file_result - ;; - esac -} -# end func_to_tool_file - - -# func_convert_file_noop ARG -# Copy ARG to func_to_host_file_result. -func_convert_file_noop () -{ - func_to_host_file_result="$1" -} -# end func_convert_file_noop - - -# func_convert_file_msys_to_w32 ARG -# Convert file name ARG from (mingw) MSYS to (mingw) w32 format; automatic -# conversion to w32 is not available inside the cwrapper. Returns result in -# func_to_host_file_result. -func_convert_file_msys_to_w32 () -{ - $opt_debug - func_to_host_file_result="$1" - if test -n "$1"; then - func_convert_core_msys_to_w32 "$1" - func_to_host_file_result="$func_convert_core_msys_to_w32_result" - fi - func_convert_file_check "$1" "$func_to_host_file_result" -} -# end func_convert_file_msys_to_w32 - - -# func_convert_file_cygwin_to_w32 ARG -# Convert file name ARG from Cygwin to w32 format. Returns result in -# func_to_host_file_result. -func_convert_file_cygwin_to_w32 () -{ - $opt_debug - func_to_host_file_result="$1" - if test -n "$1"; then - # because $build is cygwin, we call "the" cygpath in $PATH; no need to use - # LT_CYGPATH in this case. - func_to_host_file_result=`cygpath -m "$1"` - fi - func_convert_file_check "$1" "$func_to_host_file_result" -} -# end func_convert_file_cygwin_to_w32 - - -# func_convert_file_nix_to_w32 ARG -# Convert file name ARG from *nix to w32 format. Requires a wine environment -# and a working winepath. Returns result in func_to_host_file_result. -func_convert_file_nix_to_w32 () -{ - $opt_debug - func_to_host_file_result="$1" - if test -n "$1"; then - func_convert_core_file_wine_to_w32 "$1" - func_to_host_file_result="$func_convert_core_file_wine_to_w32_result" - fi - func_convert_file_check "$1" "$func_to_host_file_result" -} -# end func_convert_file_nix_to_w32 - - -# func_convert_file_msys_to_cygwin ARG -# Convert file name ARG from MSYS to Cygwin format. Requires LT_CYGPATH set. -# Returns result in func_to_host_file_result. -func_convert_file_msys_to_cygwin () -{ - $opt_debug - func_to_host_file_result="$1" - if test -n "$1"; then - func_convert_core_msys_to_w32 "$1" - func_cygpath -u "$func_convert_core_msys_to_w32_result" - func_to_host_file_result="$func_cygpath_result" - fi - func_convert_file_check "$1" "$func_to_host_file_result" -} -# end func_convert_file_msys_to_cygwin - - -# func_convert_file_nix_to_cygwin ARG -# Convert file name ARG from *nix to Cygwin format. Requires Cygwin installed -# in a wine environment, working winepath, and LT_CYGPATH set. Returns result -# in func_to_host_file_result. -func_convert_file_nix_to_cygwin () -{ - $opt_debug - func_to_host_file_result="$1" - if test -n "$1"; then - # convert from *nix to w32, then use cygpath to convert from w32 to cygwin. - func_convert_core_file_wine_to_w32 "$1" - func_cygpath -u "$func_convert_core_file_wine_to_w32_result" - func_to_host_file_result="$func_cygpath_result" - fi - func_convert_file_check "$1" "$func_to_host_file_result" -} -# end func_convert_file_nix_to_cygwin - - -############################################# -# $build to $host PATH CONVERSION FUNCTIONS # -############################################# -# invoked via `$to_host_path_cmd ARG' -# -# In each case, ARG is the path to be converted from $build to $host format. -# The result will be available in $func_to_host_path_result. -# -# Path separators are also converted from $build format to $host format. If -# ARG begins or ends with a path separator character, it is preserved (but -# converted to $host format) on output. -# -# All path conversion functions are named using the following convention: -# file name conversion function : func_convert_file_X_to_Y () -# path conversion function : func_convert_path_X_to_Y () -# where, for any given $build/$host combination the 'X_to_Y' value is the -# same. If conversion functions are added for new $build/$host combinations, -# the two new functions must follow this pattern, or func_init_to_host_path_cmd -# will break. - - -# func_init_to_host_path_cmd -# Ensures that function "pointer" variable $to_host_path_cmd is set to the -# appropriate value, based on the value of $to_host_file_cmd. -to_host_path_cmd= -func_init_to_host_path_cmd () -{ - $opt_debug - if test -z "$to_host_path_cmd"; then - func_stripname 'func_convert_file_' '' "$to_host_file_cmd" - to_host_path_cmd="func_convert_path_${func_stripname_result}" - fi -} - - -# func_to_host_path ARG -# Converts the path ARG from $build format to $host format. Return result -# in func_to_host_path_result. -func_to_host_path () -{ - $opt_debug - func_init_to_host_path_cmd - $to_host_path_cmd "$1" -} -# end func_to_host_path - - -# func_convert_path_noop ARG -# Copy ARG to func_to_host_path_result. -func_convert_path_noop () -{ - func_to_host_path_result="$1" -} -# end func_convert_path_noop - - -# func_convert_path_msys_to_w32 ARG -# Convert path ARG from (mingw) MSYS to (mingw) w32 format; automatic -# conversion to w32 is not available inside the cwrapper. Returns result in -# func_to_host_path_result. -func_convert_path_msys_to_w32 () -{ - $opt_debug - func_to_host_path_result="$1" - if test -n "$1"; then - # Remove leading and trailing path separator characters from ARG. MSYS - # behavior is inconsistent here; cygpath turns them into '.;' and ';.'; - # and winepath ignores them completely. - func_stripname : : "$1" - func_to_host_path_tmp1=$func_stripname_result - func_convert_core_msys_to_w32 "$func_to_host_path_tmp1" - func_to_host_path_result="$func_convert_core_msys_to_w32_result" - func_convert_path_check : ";" \ - "$func_to_host_path_tmp1" "$func_to_host_path_result" - func_convert_path_front_back_pathsep ":*" "*:" ";" "$1" - fi -} -# end func_convert_path_msys_to_w32 - - -# func_convert_path_cygwin_to_w32 ARG -# Convert path ARG from Cygwin to w32 format. Returns result in -# func_to_host_file_result. -func_convert_path_cygwin_to_w32 () -{ - $opt_debug - func_to_host_path_result="$1" - if test -n "$1"; then - # See func_convert_path_msys_to_w32: - func_stripname : : "$1" - func_to_host_path_tmp1=$func_stripname_result - func_to_host_path_result=`cygpath -m -p "$func_to_host_path_tmp1"` - func_convert_path_check : ";" \ - "$func_to_host_path_tmp1" "$func_to_host_path_result" - func_convert_path_front_back_pathsep ":*" "*:" ";" "$1" - fi -} -# end func_convert_path_cygwin_to_w32 - - -# func_convert_path_nix_to_w32 ARG -# Convert path ARG from *nix to w32 format. Requires a wine environment and -# a working winepath. Returns result in func_to_host_file_result. -func_convert_path_nix_to_w32 () -{ - $opt_debug - func_to_host_path_result="$1" - if test -n "$1"; then - # See func_convert_path_msys_to_w32: - func_stripname : : "$1" - func_to_host_path_tmp1=$func_stripname_result - func_convert_core_path_wine_to_w32 "$func_to_host_path_tmp1" - func_to_host_path_result="$func_convert_core_path_wine_to_w32_result" - func_convert_path_check : ";" \ - "$func_to_host_path_tmp1" "$func_to_host_path_result" - func_convert_path_front_back_pathsep ":*" "*:" ";" "$1" - fi -} -# end func_convert_path_nix_to_w32 - - -# func_convert_path_msys_to_cygwin ARG -# Convert path ARG from MSYS to Cygwin format. Requires LT_CYGPATH set. -# Returns result in func_to_host_file_result. -func_convert_path_msys_to_cygwin () -{ - $opt_debug - func_to_host_path_result="$1" - if test -n "$1"; then - # See func_convert_path_msys_to_w32: - func_stripname : : "$1" - func_to_host_path_tmp1=$func_stripname_result - func_convert_core_msys_to_w32 "$func_to_host_path_tmp1" - func_cygpath -u -p "$func_convert_core_msys_to_w32_result" - func_to_host_path_result="$func_cygpath_result" - func_convert_path_check : : \ - "$func_to_host_path_tmp1" "$func_to_host_path_result" - func_convert_path_front_back_pathsep ":*" "*:" : "$1" - fi -} -# end func_convert_path_msys_to_cygwin - - -# func_convert_path_nix_to_cygwin ARG -# Convert path ARG from *nix to Cygwin format. Requires Cygwin installed in a -# a wine environment, working winepath, and LT_CYGPATH set. Returns result in -# func_to_host_file_result. -func_convert_path_nix_to_cygwin () -{ - $opt_debug - func_to_host_path_result="$1" - if test -n "$1"; then - # Remove leading and trailing path separator characters from - # ARG. msys behavior is inconsistent here, cygpath turns them - # into '.;' and ';.', and winepath ignores them completely. - func_stripname : : "$1" - func_to_host_path_tmp1=$func_stripname_result - func_convert_core_path_wine_to_w32 "$func_to_host_path_tmp1" - func_cygpath -u -p "$func_convert_core_path_wine_to_w32_result" - func_to_host_path_result="$func_cygpath_result" - func_convert_path_check : : \ - "$func_to_host_path_tmp1" "$func_to_host_path_result" - func_convert_path_front_back_pathsep ":*" "*:" : "$1" - fi -} -# end func_convert_path_nix_to_cygwin - - -# func_mode_compile arg... -func_mode_compile () -{ - $opt_debug - # Get the compilation command and the source file. - base_compile= - srcfile="$nonopt" # always keep a non-empty value in "srcfile" - suppress_opt=yes - suppress_output= - arg_mode=normal - libobj= - later= - pie_flag= - - for arg - do - case $arg_mode in - arg ) - # do not "continue". Instead, add this to base_compile - lastarg="$arg" - arg_mode=normal - ;; - - target ) - libobj="$arg" - arg_mode=normal - continue - ;; - - normal ) - # Accept any command-line options. - case $arg in - -o) - test -n "$libobj" && \ - func_fatal_error "you cannot specify \`-o' more than once" - arg_mode=target - continue - ;; - - -pie | -fpie | -fPIE) - func_append pie_flag " $arg" - continue - ;; - - -shared | -static | -prefer-pic | -prefer-non-pic) - func_append later " $arg" - continue - ;; - - -no-suppress) - suppress_opt=no - continue - ;; - - -Xcompiler) - arg_mode=arg # the next one goes into the "base_compile" arg list - continue # The current "srcfile" will either be retained or - ;; # replaced later. I would guess that would be a bug. - - -Wc,*) - func_stripname '-Wc,' '' "$arg" - args=$func_stripname_result - lastarg= - save_ifs="$IFS"; IFS=',' - for arg in $args; do - IFS="$save_ifs" - func_append_quoted lastarg "$arg" - done - IFS="$save_ifs" - func_stripname ' ' '' "$lastarg" - lastarg=$func_stripname_result - - # Add the arguments to base_compile. - func_append base_compile " $lastarg" - continue - ;; - - *) - # Accept the current argument as the source file. - # The previous "srcfile" becomes the current argument. - # - lastarg="$srcfile" - srcfile="$arg" - ;; - esac # case $arg - ;; - esac # case $arg_mode - - # Aesthetically quote the previous argument. - func_append_quoted base_compile "$lastarg" - done # for arg - - case $arg_mode in - arg) - func_fatal_error "you must specify an argument for -Xcompile" - ;; - target) - func_fatal_error "you must specify a target with \`-o'" - ;; - *) - # Get the name of the library object. - test -z "$libobj" && { - func_basename "$srcfile" - libobj="$func_basename_result" - } - ;; - esac - - # Recognize several different file suffixes. - # If the user specifies -o file.o, it is replaced with file.lo - case $libobj in - *.[cCFSifmso] | \ - *.ada | *.adb | *.ads | *.asm | \ - *.c++ | *.cc | *.ii | *.class | *.cpp | *.cxx | \ - *.[fF][09]? | *.for | *.java | *.go | *.obj | *.sx | *.cu | *.cup) - func_xform "$libobj" - libobj=$func_xform_result - ;; - esac - - case $libobj in - *.lo) func_lo2o "$libobj"; obj=$func_lo2o_result ;; - *) - func_fatal_error "cannot determine name of library object from \`$libobj'" - ;; - esac - - func_infer_tag $base_compile - - for arg in $later; do - case $arg in - -shared) - test "$build_libtool_libs" != yes && \ - func_fatal_configuration "can not build a shared library" - build_old_libs=no - continue - ;; - - -static) - build_libtool_libs=no - build_old_libs=yes - continue - ;; - - -prefer-pic) - pic_mode=yes - continue - ;; - - -prefer-non-pic) - pic_mode=no - continue - ;; - esac - done - - func_quote_for_eval "$libobj" - test "X$libobj" != "X$func_quote_for_eval_result" \ - && $ECHO "X$libobj" | $GREP '[]~#^*{};<>?"'"'"' &()|`$[]' \ - && func_warning "libobj name \`$libobj' may not contain shell special characters." - func_dirname_and_basename "$obj" "/" "" - objname="$func_basename_result" - xdir="$func_dirname_result" - lobj=${xdir}$objdir/$objname - - test -z "$base_compile" && \ - func_fatal_help "you must specify a compilation command" - - # Delete any leftover library objects. - if test "$build_old_libs" = yes; then - removelist="$obj $lobj $libobj ${libobj}T" - else - removelist="$lobj $libobj ${libobj}T" - fi - - # On Cygwin there's no "real" PIC flag so we must build both object types - case $host_os in - cygwin* | mingw* | pw32* | os2* | cegcc*) - pic_mode=default - ;; - esac - if test "$pic_mode" = no && test "$deplibs_check_method" != pass_all; then - # non-PIC code in shared libraries is not supported - pic_mode=default - fi - - # Calculate the filename of the output object if compiler does - # not support -o with -c - if test "$compiler_c_o" = no; then - output_obj=`$ECHO "$srcfile" | $SED 's%^.*/%%; s%\.[^.]*$%%'`.${objext} - lockfile="$output_obj.lock" - else - output_obj= - need_locks=no - lockfile= - fi - - # Lock this critical section if it is needed - # We use this script file to make the link, it avoids creating a new file - if test "$need_locks" = yes; then - until $opt_dry_run || ln "$progpath" "$lockfile" 2>/dev/null; do - func_echo "Waiting for $lockfile to be removed" - sleep 2 - done - elif test "$need_locks" = warn; then - if test -f "$lockfile"; then - $ECHO "\ -*** ERROR, $lockfile exists and contains: -`cat $lockfile 2>/dev/null` - -This indicates that another process is trying to use the same -temporary object file, and libtool could not work around it because -your compiler does not support \`-c' and \`-o' together. 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If you -repeat this compilation, it may succeed, by chance, but you had better -avoid parallel builds (make -j) in this platform, or get a better -compiler." - - $opt_dry_run || $RM $removelist - exit $EXIT_FAILURE - fi - - # Just move the object if needed, then go on to compile the next one - if test -n "$output_obj" && test "X$output_obj" != "X$lobj"; then - func_show_eval '$MV "$output_obj" "$lobj"' \ - 'error=$?; $opt_dry_run || $RM $removelist; exit $error' - fi - - # Allow error messages only from the first compilation. - if test "$suppress_opt" = yes; then - suppress_output=' >/dev/null 2>&1' - fi - fi - - # Only build a position-dependent object if we build old libraries. - if test "$build_old_libs" = yes; then - if test "$pic_mode" != yes; then - # Don't build PIC code - command="$base_compile $qsrcfile$pie_flag" - else - command="$base_compile $qsrcfile $pic_flag" - fi - if test "$compiler_c_o" = yes; then - func_append command " -o $obj" - fi - - # Suppress compiler output if we already did a PIC compilation. - func_append command "$suppress_output" - func_show_eval_locale "$command" \ - '$opt_dry_run || $RM $removelist; exit $EXIT_FAILURE' - - if test "$need_locks" = warn && - test "X`cat $lockfile 2>/dev/null`" != "X$srcfile"; then - $ECHO "\ -*** ERROR, $lockfile contains: -`cat $lockfile 2>/dev/null` - -but it should contain: -$srcfile - -This indicates that another process is trying to use the same -temporary object file, and libtool could not work around it because -your compiler does not support \`-c' and \`-o' together. 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then - func_append libdirs " $opt" - - elif test -f "$opt"; then - if func_lalib_unsafe_p "$opt"; then - func_append libs " $opt" - else - func_warning "\`$opt' is not a valid libtool archive" - fi - - else - func_fatal_error "invalid argument \`$opt'" - fi - done - - if test -n "$libs"; then - if test -n "$lt_sysroot"; then - sysroot_regex=`$ECHO "$lt_sysroot" | $SED "$sed_make_literal_regex"` - sysroot_cmd="s/\([ ']\)$sysroot_regex/\1/g;" - else - sysroot_cmd= - fi - - # Remove sysroot references - if $opt_dry_run; then - for lib in $libs; do - echo "removing references to $lt_sysroot and \`=' prefixes from $lib" - done - else - tmpdir=`func_mktempdir` - for lib in $libs; do - sed -e "${sysroot_cmd} s/\([ ']-[LR]\)=/\1/g; s/\([ ']\)=/\1/g" $lib \ - > $tmpdir/tmp-la - mv -f $tmpdir/tmp-la $lib - done - ${RM}r "$tmpdir" - fi - fi - - if test -n "$finish_cmds$finish_eval" && test -n "$libdirs"; then - for libdir in $libdirs; do - if test -n "$finish_cmds"; then - # Do each command in the finish commands. - func_execute_cmds "$finish_cmds" 'admincmds="$admincmds -'"$cmd"'"' - fi - if test -n "$finish_eval"; then - # Do the single finish_eval. - eval cmds=\"$finish_eval\" - $opt_dry_run || eval "$cmds" || func_append admincmds " - $cmds" - fi - done - fi - - # Exit here if they wanted silent mode. - $opt_silent && exit $EXIT_SUCCESS - - if test -n "$finish_cmds$finish_eval" && test -n "$libdirs"; then - echo "----------------------------------------------------------------------" - echo "Libraries have been installed in:" - for libdir in $libdirs; do - $ECHO " $libdir" - done - echo - echo "If you ever happen to want to link against installed libraries" - echo "in a given directory, LIBDIR, you must either use libtool, and" - echo "specify the full pathname of the library, or use the \`-LLIBDIR'" - echo "flag during linking and do at least one of the following:" - if test -n "$shlibpath_var"; then - echo " - add LIBDIR to the \`$shlibpath_var' environment variable" - echo " during execution" - fi - if test -n "$runpath_var"; then - echo " - add LIBDIR to the \`$runpath_var' environment variable" - echo " during linking" - fi - if test -n "$hardcode_libdir_flag_spec"; then - libdir=LIBDIR - eval flag=\"$hardcode_libdir_flag_spec\" - - $ECHO " - use the \`$flag' linker flag" - fi - if test -n "$admincmds"; then - $ECHO " - have your system administrator run these commands:$admincmds" - fi - if test -f /etc/ld.so.conf; then - echo " - have your system administrator add LIBDIR to \`/etc/ld.so.conf'" - fi - echo - - echo "See any operating system documentation about shared libraries for" - case $host in - solaris2.[6789]|solaris2.1[0-9]) - echo "more information, such as the ld(1), crle(1) and ld.so(8) manual" - echo "pages." - ;; - *) - echo "more information, such as the ld(1) and ld.so(8) manual pages." - ;; - esac - echo "----------------------------------------------------------------------" - fi - exit $EXIT_SUCCESS -} - -test "$opt_mode" = finish && func_mode_finish ${1+"$@"} - - -# func_mode_install arg... -func_mode_install () -{ - $opt_debug - # There may be an optional sh(1) argument at the beginning of - # install_prog (especially on Windows NT). - if test "$nonopt" = "$SHELL" || test "$nonopt" = /bin/sh || - # Allow the use of GNU shtool's install command. - case $nonopt in *shtool*) :;; *) false;; esac; then - # Aesthetically quote it. - func_quote_for_eval "$nonopt" - install_prog="$func_quote_for_eval_result " - arg=$1 - shift - else - install_prog= - arg=$nonopt - fi - - # The real first argument should be the name of the installation program. - # Aesthetically quote it. - func_quote_for_eval "$arg" - func_append install_prog "$func_quote_for_eval_result" - install_shared_prog=$install_prog - case " $install_prog " in - *[\\\ /]cp\ *) install_cp=: ;; - *) install_cp=false ;; - esac - - # We need to accept at least all the BSD install flags. - dest= - files= - opts= - prev= - install_type= - isdir=no - stripme= - no_mode=: - for arg - do - arg2= - if test -n "$dest"; then - func_append files " $dest" - dest=$arg - continue - fi - - case $arg in - -d) isdir=yes ;; - -f) - if $install_cp; then :; else - prev=$arg - fi - ;; - -g | -m | -o) - prev=$arg - ;; - -s) - stripme=" -s" - continue - ;; - -*) - ;; - *) - # If the previous option needed an argument, then skip it. - if test -n "$prev"; then - if test "x$prev" = x-m && test -n "$install_override_mode"; then - arg2=$install_override_mode - no_mode=false - fi - prev= - else - dest=$arg - continue - fi - ;; - esac - - # Aesthetically quote the argument. - func_quote_for_eval "$arg" - func_append install_prog " $func_quote_for_eval_result" - if test -n "$arg2"; then - func_quote_for_eval "$arg2" - fi - func_append install_shared_prog " $func_quote_for_eval_result" - done - - test -z "$install_prog" && \ - func_fatal_help "you must specify an install program" - - test -n "$prev" && \ - func_fatal_help "the \`$prev' option requires an argument" - - if test -n "$install_override_mode" && $no_mode; then - if $install_cp; then :; else - func_quote_for_eval "$install_override_mode" - func_append install_shared_prog " -m $func_quote_for_eval_result" - fi - fi - - if test -z "$files"; then - if test -z "$dest"; then - func_fatal_help "no file or destination specified" - else - func_fatal_help "you must specify a destination" - fi - fi - - # Strip any trailing slash from the destination. - func_stripname '' '/' "$dest" - dest=$func_stripname_result - - # Check to see that the destination is a directory. - test -d "$dest" && isdir=yes - if test "$isdir" = yes; then - destdir="$dest" - destname= - else - func_dirname_and_basename "$dest" "" "." - destdir="$func_dirname_result" - destname="$func_basename_result" - - # Not a directory, so check to see that there is only one file specified. - set dummy $files; shift - test "$#" -gt 1 && \ - func_fatal_help "\`$dest' is not a directory" - fi - case $destdir in - [\\/]* | [A-Za-z]:[\\/]*) ;; - *) - for file in $files; do - case $file in - *.lo) ;; - *) - func_fatal_help "\`$destdir' must be an absolute directory name" - ;; - esac - done - ;; - esac - - # This variable tells wrapper scripts just to set variables rather - # than running their programs. - libtool_install_magic="$magic" - - staticlibs= - future_libdirs= - current_libdirs= - for file in $files; do - - # Do each installation. - case $file in - *.$libext) - # Do the static libraries later. - func_append staticlibs " $file" - ;; - - *.la) - func_resolve_sysroot "$file" - file=$func_resolve_sysroot_result - - # Check to see that this really is a libtool archive. - func_lalib_unsafe_p "$file" \ - || func_fatal_help "\`$file' is not a valid libtool archive" - - library_names= - old_library= - relink_command= - func_source "$file" - - # Add the libdir to current_libdirs if it is the destination. - if test "X$destdir" = "X$libdir"; then - case "$current_libdirs " in - *" $libdir "*) ;; - *) func_append current_libdirs " $libdir" ;; - esac - else - # Note the libdir as a future libdir. - case "$future_libdirs " in - *" $libdir "*) ;; - *) func_append future_libdirs " $libdir" ;; - esac - fi - - func_dirname "$file" "/" "" - dir="$func_dirname_result" - func_append dir "$objdir" - - if test -n "$relink_command"; then - # Determine the prefix the user has applied to our future dir. - inst_prefix_dir=`$ECHO "$destdir" | $SED -e "s%$libdir\$%%"` - - # Don't allow the user to place us outside of our expected - # location b/c this prevents finding dependent libraries that - # are installed to the same prefix. - # At present, this check doesn't affect windows .dll's that - # are installed into $libdir/../bin (currently, that works fine) - # but it's something to keep an eye on. - test "$inst_prefix_dir" = "$destdir" && \ - func_fatal_error "error: cannot install \`$file' to a directory not ending in $libdir" - - if test -n "$inst_prefix_dir"; then - # Stick the inst_prefix_dir data into the link command. - relink_command=`$ECHO "$relink_command" | $SED "s%@inst_prefix_dir@%-inst-prefix-dir $inst_prefix_dir%"` - else - relink_command=`$ECHO "$relink_command" | $SED "s%@inst_prefix_dir@%%"` - fi - - func_warning "relinking \`$file'" - func_show_eval "$relink_command" \ - 'func_fatal_error "error: relink \`$file'\'' with the above command before installing it"' - fi - - # See the names of the shared library. - set dummy $library_names; shift - if test -n "$1"; then - realname="$1" - shift - - srcname="$realname" - test -n "$relink_command" && srcname="$realname"T - - # Install the shared library and build the symlinks. - func_show_eval "$install_shared_prog $dir/$srcname $destdir/$realname" \ - 'exit $?' - tstripme="$stripme" - case $host_os in - cygwin* | mingw* | pw32* | cegcc*) - case $realname in - *.dll.a) - tstripme="" - ;; - esac - ;; - esac - if test -n "$tstripme" && test -n "$striplib"; then - func_show_eval "$striplib $destdir/$realname" 'exit $?' - fi - - if test "$#" -gt 0; then - # Delete the old symlinks, and create new ones. - # Try `ln -sf' first, because the `ln' binary might depend on - # the symlink we replace! Solaris /bin/ln does not understand -f, - # so we also need to try rm && ln -s. - for linkname - do - test "$linkname" != "$realname" \ - && func_show_eval "(cd $destdir && { $LN_S -f $realname $linkname || { $RM $linkname && $LN_S $realname $linkname; }; })" - done - fi - - # Do each command in the postinstall commands. - lib="$destdir/$realname" - func_execute_cmds "$postinstall_cmds" 'exit $?' - fi - - # Install the pseudo-library for information purposes. - func_basename "$file" - name="$func_basename_result" - instname="$dir/$name"i - func_show_eval "$install_prog $instname $destdir/$name" 'exit $?' - - # Maybe install the static library, too. - test -n "$old_library" && func_append staticlibs " $dir/$old_library" - ;; - - *.lo) - # Install (i.e. copy) a libtool object. - - # Figure out destination file name, if it wasn't already specified. - if test -n "$destname"; then - destfile="$destdir/$destname" - else - func_basename "$file" - destfile="$func_basename_result" - destfile="$destdir/$destfile" - fi - - # Deduce the name of the destination old-style object file. - case $destfile in - *.lo) - func_lo2o "$destfile" - staticdest=$func_lo2o_result - ;; - *.$objext) - staticdest="$destfile" - destfile= - ;; - *) - func_fatal_help "cannot copy a libtool object to \`$destfile'" - ;; - esac - - # Install the libtool object if requested. - test -n "$destfile" && \ - func_show_eval "$install_prog $file $destfile" 'exit $?' - - # Install the old object if enabled. - if test "$build_old_libs" = yes; then - # Deduce the name of the old-style object file. - func_lo2o "$file" - staticobj=$func_lo2o_result - func_show_eval "$install_prog \$staticobj \$staticdest" 'exit $?' - fi - exit $EXIT_SUCCESS - ;; - - *) - # Figure out destination file name, if it wasn't already specified. - if test -n "$destname"; then - destfile="$destdir/$destname" - else - func_basename "$file" - destfile="$func_basename_result" - destfile="$destdir/$destfile" - fi - - # If the file is missing, and there is a .exe on the end, strip it - # because it is most likely a libtool script we actually want to - # install - stripped_ext="" - case $file in - *.exe) - if test ! -f "$file"; then - func_stripname '' '.exe' "$file" - file=$func_stripname_result - stripped_ext=".exe" - fi - ;; - esac - - # Do a test to see if this is really a libtool program. - case $host in - *cygwin* | *mingw*) - if func_ltwrapper_executable_p "$file"; then - func_ltwrapper_scriptname "$file" - wrapper=$func_ltwrapper_scriptname_result - else - func_stripname '' '.exe' "$file" - wrapper=$func_stripname_result - fi - ;; - *) - wrapper=$file - ;; - esac - if func_ltwrapper_script_p "$wrapper"; then - notinst_deplibs= - relink_command= - - func_source "$wrapper" - - # Check the variables that should have been set. - test -z "$generated_by_libtool_version" && \ - func_fatal_error "invalid libtool wrapper script \`$wrapper'" - - finalize=yes - for lib in $notinst_deplibs; do - # Check to see that each library is installed. - libdir= - if test -f "$lib"; then - func_source "$lib" - fi - libfile="$libdir/"`$ECHO "$lib" | $SED 's%^.*/%%g'` ### testsuite: skip nested quoting test - if test -n "$libdir" && test ! -f "$libfile"; then - func_warning "\`$lib' has not been installed in \`$libdir'" - finalize=no - fi - done - - relink_command= - func_source "$wrapper" - - outputname= - if test "$fast_install" = no && test -n "$relink_command"; then - $opt_dry_run || { - if test "$finalize" = yes; then - tmpdir=`func_mktempdir` - func_basename "$file$stripped_ext" - file="$func_basename_result" - outputname="$tmpdir/$file" - # Replace the output file specification. - relink_command=`$ECHO "$relink_command" | $SED 's%@OUTPUT@%'"$outputname"'%g'` - - $opt_silent || { - func_quote_for_expand "$relink_command" - eval "func_echo $func_quote_for_expand_result" - } - if eval "$relink_command"; then : - else - func_error "error: relink \`$file' with the above command before installing it" - $opt_dry_run || ${RM}r "$tmpdir" - continue - fi - file="$outputname" - else - func_warning "cannot relink \`$file'" - fi - } - else - # Install the binary that we compiled earlier. - file=`$ECHO "$file$stripped_ext" | $SED "s%\([^/]*\)$%$objdir/\1%"` - fi - fi - - # remove .exe since cygwin /usr/bin/install will append another - # one anyway - case $install_prog,$host in - */usr/bin/install*,*cygwin*) - case $file:$destfile in - *.exe:*.exe) - # this is ok - ;; - *.exe:*) - destfile=$destfile.exe - ;; - *:*.exe) - func_stripname '' '.exe' "$destfile" - destfile=$func_stripname_result - ;; - esac - ;; - esac - func_show_eval "$install_prog\$stripme \$file \$destfile" 'exit $?' - $opt_dry_run || if test -n "$outputname"; then - ${RM}r "$tmpdir" - fi - ;; - esac - done - - for file in $staticlibs; do - func_basename "$file" - name="$func_basename_result" - - # Set up the ranlib parameters. - oldlib="$destdir/$name" - func_to_tool_file "$oldlib" func_convert_file_msys_to_w32 - tool_oldlib=$func_to_tool_file_result - - func_show_eval "$install_prog \$file \$oldlib" 'exit $?' - - if test -n "$stripme" && test -n "$old_striplib"; then - func_show_eval "$old_striplib $tool_oldlib" 'exit $?' - fi - - # Do each command in the postinstall commands. - func_execute_cmds "$old_postinstall_cmds" 'exit $?' - done - - test -n "$future_libdirs" && \ - func_warning "remember to run \`$progname --finish$future_libdirs'" - - if test -n "$current_libdirs"; then - # Maybe just do a dry run. - $opt_dry_run && current_libdirs=" -n$current_libdirs" - exec_cmd='$SHELL $progpath $preserve_args --finish$current_libdirs' - else - exit $EXIT_SUCCESS - fi -} - -test "$opt_mode" = install && func_mode_install ${1+"$@"} - - -# func_generate_dlsyms outputname originator pic_p -# Extract symbols from dlprefiles and create ${outputname}S.o with -# a dlpreopen symbol table. -func_generate_dlsyms () -{ - $opt_debug - my_outputname="$1" - my_originator="$2" - my_pic_p="${3-no}" - my_prefix=`$ECHO "$my_originator" | sed 's%[^a-zA-Z0-9]%_%g'` - my_dlsyms= - - if test -n "$dlfiles$dlprefiles" || test "$dlself" != no; then - if test -n "$NM" && test -n "$global_symbol_pipe"; then - my_dlsyms="${my_outputname}S.c" - else - func_error "not configured to extract global symbols from dlpreopened files" - fi - fi - - if test -n "$my_dlsyms"; then - case $my_dlsyms in - "") ;; - *.c) - # Discover the nlist of each of the dlfiles. - nlist="$output_objdir/${my_outputname}.nm" - - func_show_eval "$RM $nlist ${nlist}S ${nlist}T" - - # Parse the name list into a source file. - func_verbose "creating $output_objdir/$my_dlsyms" - - $opt_dry_run || $ECHO > "$output_objdir/$my_dlsyms" "\ -/* $my_dlsyms - symbol resolution table for \`$my_outputname' dlsym emulation. */ -/* Generated by $PROGRAM (GNU $PACKAGE$TIMESTAMP) $VERSION */ - -#ifdef __cplusplus -extern \"C\" { -#endif - -#if defined(__GNUC__) && (((__GNUC__ == 4) && (__GNUC_MINOR__ >= 4)) || (__GNUC__ > 4)) -#pragma GCC diagnostic ignored \"-Wstrict-prototypes\" -#endif - -/* Keep this code in sync between libtool.m4, ltmain, lt_system.h, and tests. */ -#if defined(_WIN32) || defined(__CYGWIN__) || defined(_WIN32_WCE) -/* DATA imports from DLLs on WIN32 con't be const, because runtime - relocations are performed -- see ld's documentation on pseudo-relocs. */ -# define LT_DLSYM_CONST -#elif defined(__osf__) -/* This system does not cope well with relocations in const data. */ -# define LT_DLSYM_CONST -#else -# define LT_DLSYM_CONST const -#endif - -/* External symbol declarations for the compiler. */\ -" - - if test "$dlself" = yes; then - func_verbose "generating symbol list for \`$output'" - - $opt_dry_run || echo ': @PROGRAM@ ' > "$nlist" - - # Add our own program objects to the symbol list. - progfiles=`$ECHO "$objs$old_deplibs" | $SP2NL | $SED "$lo2o" | $NL2SP` - for progfile in $progfiles; do - func_to_tool_file "$progfile" func_convert_file_msys_to_w32 - func_verbose "extracting global C symbols from \`$func_to_tool_file_result'" - $opt_dry_run || eval "$NM $func_to_tool_file_result | $global_symbol_pipe >> '$nlist'" - done - - if test -n "$exclude_expsyms"; then - $opt_dry_run || { - eval '$EGREP -v " ($exclude_expsyms)$" "$nlist" > "$nlist"T' - eval '$MV "$nlist"T "$nlist"' - } - fi - - if test -n "$export_symbols_regex"; then - $opt_dry_run || { - eval '$EGREP -e "$export_symbols_regex" "$nlist" > "$nlist"T' - eval '$MV "$nlist"T "$nlist"' - } - fi - - # Prepare the list of exported symbols - if test -z "$export_symbols"; then - export_symbols="$output_objdir/$outputname.exp" - $opt_dry_run || { - $RM $export_symbols - eval "${SED} -n -e '/^: @PROGRAM@ $/d' -e 's/^.* \(.*\)$/\1/p' "'< "$nlist" > "$export_symbols"' - case $host in - *cygwin* | *mingw* | *cegcc* ) - eval "echo EXPORTS "'> "$output_objdir/$outputname.def"' - eval 'cat "$export_symbols" >> "$output_objdir/$outputname.def"' - ;; - esac - } - else - $opt_dry_run || { - eval "${SED} -e 's/\([].[*^$]\)/\\\\\1/g' -e 's/^/ /' -e 's/$/$/'"' < "$export_symbols" > "$output_objdir/$outputname.exp"' - eval '$GREP -f "$output_objdir/$outputname.exp" < "$nlist" > "$nlist"T' - eval '$MV "$nlist"T "$nlist"' - case $host in - *cygwin* | *mingw* | *cegcc* ) - eval "echo EXPORTS "'> "$output_objdir/$outputname.def"' - eval 'cat "$nlist" >> "$output_objdir/$outputname.def"' - ;; - esac - } - fi - fi - - for dlprefile in $dlprefiles; do - func_verbose "extracting global C symbols from \`$dlprefile'" - func_basename "$dlprefile" - name="$func_basename_result" - case $host in - *cygwin* | *mingw* | *cegcc* ) - # if an import library, we need to obtain dlname - if func_win32_import_lib_p "$dlprefile"; then - func_tr_sh "$dlprefile" - eval "curr_lafile=\$libfile_$func_tr_sh_result" - dlprefile_dlbasename="" - if test -n "$curr_lafile" && func_lalib_p "$curr_lafile"; then - # Use subshell, to avoid clobbering current variable values - dlprefile_dlname=`source "$curr_lafile" && echo "$dlname"` - if test -n "$dlprefile_dlname" ; then - func_basename "$dlprefile_dlname" - dlprefile_dlbasename="$func_basename_result" - else - # no lafile. user explicitly requested -dlpreopen . - $sharedlib_from_linklib_cmd "$dlprefile" - dlprefile_dlbasename=$sharedlib_from_linklib_result - fi - fi - $opt_dry_run || { - if test -n "$dlprefile_dlbasename" ; then - eval '$ECHO ": $dlprefile_dlbasename" >> "$nlist"' - else - func_warning "Could not compute DLL name from $name" - eval '$ECHO ": $name " >> "$nlist"' - fi - func_to_tool_file "$dlprefile" func_convert_file_msys_to_w32 - eval "$NM \"$func_to_tool_file_result\" 2>/dev/null | $global_symbol_pipe | - $SED -e '/I __imp/d' -e 's/I __nm_/D /;s/_nm__//' >> '$nlist'" - } - else # not an import lib - $opt_dry_run || { - eval '$ECHO ": $name " >> "$nlist"' - func_to_tool_file "$dlprefile" func_convert_file_msys_to_w32 - eval "$NM \"$func_to_tool_file_result\" 2>/dev/null | $global_symbol_pipe >> '$nlist'" - } - fi - ;; - *) - $opt_dry_run || { - eval '$ECHO ": $name " >> "$nlist"' - func_to_tool_file "$dlprefile" func_convert_file_msys_to_w32 - eval "$NM \"$func_to_tool_file_result\" 2>/dev/null | $global_symbol_pipe >> '$nlist'" - } - ;; - esac - done - - $opt_dry_run || { - # Make sure we have at least an empty file. - test -f "$nlist" || : > "$nlist" - - if test -n "$exclude_expsyms"; then - $EGREP -v " ($exclude_expsyms)$" "$nlist" > "$nlist"T - $MV "$nlist"T "$nlist" - fi - - # Try sorting and uniquifying the output. - if $GREP -v "^: " < "$nlist" | - if sort -k 3 /dev/null 2>&1; then - sort -k 3 - else - sort +2 - fi | - uniq > "$nlist"S; then - : - else - $GREP -v "^: " < "$nlist" > "$nlist"S - fi - - if test -f "$nlist"S; then - eval "$global_symbol_to_cdecl"' < "$nlist"S >> "$output_objdir/$my_dlsyms"' - else - echo '/* NONE */' >> "$output_objdir/$my_dlsyms" - fi - - echo >> "$output_objdir/$my_dlsyms" "\ - -/* The mapping between symbol names and symbols. */ -typedef struct { - const char *name; - void *address; -} lt_dlsymlist; -extern LT_DLSYM_CONST lt_dlsymlist -lt_${my_prefix}_LTX_preloaded_symbols[]; -LT_DLSYM_CONST lt_dlsymlist -lt_${my_prefix}_LTX_preloaded_symbols[] = -{\ - { \"$my_originator\", (void *) 0 }," - - case $need_lib_prefix in - no) - eval "$global_symbol_to_c_name_address" < "$nlist" >> "$output_objdir/$my_dlsyms" - ;; - *) - eval "$global_symbol_to_c_name_address_lib_prefix" < "$nlist" >> "$output_objdir/$my_dlsyms" - ;; - esac - echo >> "$output_objdir/$my_dlsyms" "\ - {0, (void *) 0} -}; - -/* This works around a problem in FreeBSD linker */ -#ifdef FREEBSD_WORKAROUND -static const void *lt_preloaded_setup() { - return lt_${my_prefix}_LTX_preloaded_symbols; -} -#endif - -#ifdef __cplusplus -} -#endif\ -" - } # !$opt_dry_run - - pic_flag_for_symtable= - case "$compile_command " in - *" -static "*) ;; - *) - case $host in - # compiling the symbol table file with pic_flag works around - # a FreeBSD bug that causes programs to crash when -lm is - # linked before any other PIC object. But we must not use - # pic_flag when linking with -static. The problem exists in - # FreeBSD 2.2.6 and is fixed in FreeBSD 3.1. - *-*-freebsd2.*|*-*-freebsd3.0*|*-*-freebsdelf3.0*) - pic_flag_for_symtable=" $pic_flag -DFREEBSD_WORKAROUND" ;; - *-*-hpux*) - pic_flag_for_symtable=" $pic_flag" ;; - *) - if test "X$my_pic_p" != Xno; then - pic_flag_for_symtable=" $pic_flag" - fi - ;; - esac - ;; - esac - symtab_cflags= - for arg in $LTCFLAGS; do - case $arg in - -pie | -fpie | -fPIE) ;; - *) func_append symtab_cflags " $arg" ;; - esac - done - - # Now compile the dynamic symbol file. - func_show_eval '(cd $output_objdir && $LTCC$symtab_cflags -c$no_builtin_flag$pic_flag_for_symtable "$my_dlsyms")' 'exit $?' - - # Clean up the generated files. - func_show_eval '$RM "$output_objdir/$my_dlsyms" "$nlist" "${nlist}S" "${nlist}T"' - - # Transform the symbol file into the correct name. - symfileobj="$output_objdir/${my_outputname}S.$objext" - case $host in - *cygwin* | *mingw* | *cegcc* ) - if test -f "$output_objdir/$my_outputname.def"; then - compile_command=`$ECHO "$compile_command" | $SED "s%@SYMFILE@%$output_objdir/$my_outputname.def $symfileobj%"` - finalize_command=`$ECHO "$finalize_command" | $SED "s%@SYMFILE@%$output_objdir/$my_outputname.def $symfileobj%"` - else - compile_command=`$ECHO "$compile_command" | $SED "s%@SYMFILE@%$symfileobj%"` - finalize_command=`$ECHO "$finalize_command" | $SED "s%@SYMFILE@%$symfileobj%"` - fi - ;; - *) - compile_command=`$ECHO "$compile_command" | $SED "s%@SYMFILE@%$symfileobj%"` - finalize_command=`$ECHO "$finalize_command" | $SED "s%@SYMFILE@%$symfileobj%"` - ;; - esac - ;; - *) - func_fatal_error "unknown suffix for \`$my_dlsyms'" - ;; - esac - else - # We keep going just in case the user didn't refer to - # lt_preloaded_symbols. The linker will fail if global_symbol_pipe - # really was required. - - # Nullify the symbol file. - compile_command=`$ECHO "$compile_command" | $SED "s% @SYMFILE@%%"` - finalize_command=`$ECHO "$finalize_command" | $SED "s% @SYMFILE@%%"` - fi -} - -# func_win32_libid arg -# return the library type of file 'arg' -# -# Need a lot of goo to handle *both* DLLs and import libs -# Has to be a shell function in order to 'eat' the argument -# that is supplied when $file_magic_command is called. -# Despite the name, also deal with 64 bit binaries. -func_win32_libid () -{ - $opt_debug - win32_libid_type="unknown" - win32_fileres=`file -L $1 2>/dev/null` - case $win32_fileres in - *ar\ archive\ import\ library*) # definitely import - win32_libid_type="x86 archive import" - ;; - *ar\ archive*) # could be an import, or static - # Keep the egrep pattern in sync with the one in _LT_CHECK_MAGIC_METHOD. - if eval $OBJDUMP -f $1 | $SED -e '10q' 2>/dev/null | - $EGREP 'file format (pei*-i386(.*architecture: i386)?|pe-arm-wince|pe-x86-64)' >/dev/null; then - func_to_tool_file "$1" func_convert_file_msys_to_w32 - win32_nmres=`eval $NM -f posix -A \"$func_to_tool_file_result\" | - $SED -n -e ' - 1,100{ - / I /{ - s,.*,import, - p - q - } - }'` - case $win32_nmres in - import*) win32_libid_type="x86 archive import";; - *) win32_libid_type="x86 archive static";; - esac - fi - ;; - *DLL*) - win32_libid_type="x86 DLL" - ;; - *executable*) # but shell scripts are "executable" too... - case $win32_fileres in - *MS\ Windows\ PE\ Intel*) - win32_libid_type="x86 DLL" - ;; - esac - ;; - esac - $ECHO "$win32_libid_type" -} - -# func_cygming_dll_for_implib ARG -# -# Platform-specific function to extract the -# name of the DLL associated with the specified -# import library ARG. -# Invoked by eval'ing the libtool variable -# $sharedlib_from_linklib_cmd -# Result is available in the variable -# $sharedlib_from_linklib_result -func_cygming_dll_for_implib () -{ - $opt_debug - sharedlib_from_linklib_result=`$DLLTOOL --identify-strict --identify "$1"` -} - -# func_cygming_dll_for_implib_fallback_core SECTION_NAME LIBNAMEs -# -# The is the core of a fallback implementation of a -# platform-specific function to extract the name of the -# DLL associated with the specified import library LIBNAME. -# -# SECTION_NAME is either .idata$6 or .idata$7, depending -# on the platform and compiler that created the implib. -# -# Echos the name of the DLL associated with the -# specified import library. -func_cygming_dll_for_implib_fallback_core () -{ - $opt_debug - match_literal=`$ECHO "$1" | $SED "$sed_make_literal_regex"` - $OBJDUMP -s --section "$1" "$2" 2>/dev/null | - $SED '/^Contents of section '"$match_literal"':/{ - # Place marker at beginning of archive member dllname section - s/.*/====MARK====/ - p - d - } - # These lines can sometimes be longer than 43 characters, but - # are always uninteresting - /:[ ]*file format pe[i]\{,1\}-/d - /^In archive [^:]*:/d - # Ensure marker is printed - /^====MARK====/p - # Remove all lines with less than 43 characters - /^.\{43\}/!d - # From remaining lines, remove first 43 characters - s/^.\{43\}//' | - $SED -n ' - # Join marker and all lines until next marker into a single line - /^====MARK====/ b para - H - $ b para - b - :para - x - s/\n//g - # Remove the marker - s/^====MARK====// - # Remove trailing dots and whitespace - s/[\. \t]*$// - # Print - /./p' | - # we now have a list, one entry per line, of the stringified - # contents of the appropriate section of all members of the - # archive which possess that section. Heuristic: eliminate - # all those which have a first or second character that is - # a '.' (that is, objdump's representation of an unprintable - # character.) This should work for all archives with less than - # 0x302f exports -- but will fail for DLLs whose name actually - # begins with a literal '.' or a single character followed by - # a '.'. - # - # Of those that remain, print the first one. - $SED -e '/^\./d;/^.\./d;q' -} - -# func_cygming_gnu_implib_p ARG -# This predicate returns with zero status (TRUE) if -# ARG is a GNU/binutils-style import library. Returns -# with nonzero status (FALSE) otherwise. -func_cygming_gnu_implib_p () -{ - $opt_debug - func_to_tool_file "$1" func_convert_file_msys_to_w32 - func_cygming_gnu_implib_tmp=`$NM "$func_to_tool_file_result" | eval "$global_symbol_pipe" | $EGREP ' (_head_[A-Za-z0-9_]+_[ad]l*|[A-Za-z0-9_]+_[ad]l*_iname)$'` - test -n "$func_cygming_gnu_implib_tmp" -} - -# func_cygming_ms_implib_p ARG -# This predicate returns with zero status (TRUE) if -# ARG is an MS-style import library. Returns -# with nonzero status (FALSE) otherwise. -func_cygming_ms_implib_p () -{ - $opt_debug - func_to_tool_file "$1" func_convert_file_msys_to_w32 - func_cygming_ms_implib_tmp=`$NM "$func_to_tool_file_result" | eval "$global_symbol_pipe" | $GREP '_NULL_IMPORT_DESCRIPTOR'` - test -n "$func_cygming_ms_implib_tmp" -} - -# func_cygming_dll_for_implib_fallback ARG -# Platform-specific function to extract the -# name of the DLL associated with the specified -# import library ARG. -# -# This fallback implementation is for use when $DLLTOOL -# does not support the --identify-strict option. -# Invoked by eval'ing the libtool variable -# $sharedlib_from_linklib_cmd -# Result is available in the variable -# $sharedlib_from_linklib_result -func_cygming_dll_for_implib_fallback () -{ - $opt_debug - if func_cygming_gnu_implib_p "$1" ; then - # binutils import library - sharedlib_from_linklib_result=`func_cygming_dll_for_implib_fallback_core '.idata$7' "$1"` - elif func_cygming_ms_implib_p "$1" ; then - # ms-generated import library - sharedlib_from_linklib_result=`func_cygming_dll_for_implib_fallback_core '.idata$6' "$1"` - else - # unknown - sharedlib_from_linklib_result="" - fi -} - - -# func_extract_an_archive dir oldlib -func_extract_an_archive () -{ - $opt_debug - f_ex_an_ar_dir="$1"; shift - f_ex_an_ar_oldlib="$1" - if test "$lock_old_archive_extraction" = yes; then - lockfile=$f_ex_an_ar_oldlib.lock - until $opt_dry_run || ln "$progpath" "$lockfile" 2>/dev/null; do - func_echo "Waiting for $lockfile to be removed" - sleep 2 - done - fi - func_show_eval "(cd \$f_ex_an_ar_dir && $AR x \"\$f_ex_an_ar_oldlib\")" \ - 'stat=$?; rm -f "$lockfile"; exit $stat' - if test "$lock_old_archive_extraction" = yes; then - $opt_dry_run || rm -f "$lockfile" - fi - if ($AR t "$f_ex_an_ar_oldlib" | sort | sort -uc >/dev/null 2>&1); then - : - else - func_fatal_error "object name conflicts in archive: $f_ex_an_ar_dir/$f_ex_an_ar_oldlib" - fi -} - - -# func_extract_archives gentop oldlib ... -func_extract_archives () -{ - $opt_debug - my_gentop="$1"; shift - my_oldlibs=${1+"$@"} - my_oldobjs="" - my_xlib="" - my_xabs="" - my_xdir="" - - for my_xlib in $my_oldlibs; do - # Extract the objects. - case $my_xlib in - [\\/]* | [A-Za-z]:[\\/]*) my_xabs="$my_xlib" ;; - *) my_xabs=`pwd`"/$my_xlib" ;; - esac - func_basename "$my_xlib" - my_xlib="$func_basename_result" - my_xlib_u=$my_xlib - while :; do - case " $extracted_archives " in - *" $my_xlib_u "*) - func_arith $extracted_serial + 1 - extracted_serial=$func_arith_result - my_xlib_u=lt$extracted_serial-$my_xlib ;; - *) break ;; - esac - done - extracted_archives="$extracted_archives $my_xlib_u" - my_xdir="$my_gentop/$my_xlib_u" - - func_mkdir_p "$my_xdir" - - case $host in - *-darwin*) - func_verbose "Extracting $my_xabs" - # Do not bother doing anything if just a dry run - $opt_dry_run || { - darwin_orig_dir=`pwd` - cd $my_xdir || exit $? - darwin_archive=$my_xabs - darwin_curdir=`pwd` - darwin_base_archive=`basename "$darwin_archive"` - darwin_arches=`$LIPO -info "$darwin_archive" 2>/dev/null | $GREP Architectures 2>/dev/null || true` - if test -n "$darwin_arches"; then - darwin_arches=`$ECHO "$darwin_arches" | $SED -e 's/.*are://'` - darwin_arch= - func_verbose "$darwin_base_archive has multiple architectures $darwin_arches" - for darwin_arch in $darwin_arches ; do - func_mkdir_p "unfat-$$/${darwin_base_archive}-${darwin_arch}" - $LIPO -thin $darwin_arch -output "unfat-$$/${darwin_base_archive}-${darwin_arch}/${darwin_base_archive}" "${darwin_archive}" - cd "unfat-$$/${darwin_base_archive}-${darwin_arch}" - func_extract_an_archive "`pwd`" "${darwin_base_archive}" - cd "$darwin_curdir" - $RM "unfat-$$/${darwin_base_archive}-${darwin_arch}/${darwin_base_archive}" - done # $darwin_arches - ## Okay now we've a bunch of thin objects, gotta fatten them up :) - darwin_filelist=`find unfat-$$ -type f -name \*.o -print -o -name \*.lo -print | $SED -e "$basename" | sort -u` - darwin_file= - darwin_files= - for darwin_file in $darwin_filelist; do - darwin_files=`find unfat-$$ -name $darwin_file -print | sort | $NL2SP` - $LIPO -create -output "$darwin_file" $darwin_files - done # $darwin_filelist - $RM -rf unfat-$$ - cd "$darwin_orig_dir" - else - cd $darwin_orig_dir - func_extract_an_archive "$my_xdir" "$my_xabs" - fi # $darwin_arches - } # !$opt_dry_run - ;; - *) - func_extract_an_archive "$my_xdir" "$my_xabs" - ;; - esac - my_oldobjs="$my_oldobjs "`find $my_xdir -name \*.$objext -print -o -name \*.lo -print | sort | $NL2SP` - done - - func_extract_archives_result="$my_oldobjs" -} - - -# func_emit_wrapper [arg=no] -# -# Emit a libtool wrapper script on stdout. -# Don't directly open a file because we may want to -# incorporate the script contents within a cygwin/mingw -# wrapper executable. Must ONLY be called from within -# func_mode_link because it depends on a number of variables -# set therein. -# -# ARG is the value that the WRAPPER_SCRIPT_BELONGS_IN_OBJDIR -# variable will take. If 'yes', then the emitted script -# will assume that the directory in which it is stored is -# the $objdir directory. This is a cygwin/mingw-specific -# behavior. -func_emit_wrapper () -{ - func_emit_wrapper_arg1=${1-no} - - $ECHO "\ -#! $SHELL - -# $output - temporary wrapper script for $objdir/$outputname -# Generated by $PROGRAM (GNU $PACKAGE$TIMESTAMP) $VERSION -# -# The $output program cannot be directly executed until all the libtool -# libraries that it depends on are installed. -# -# This wrapper script should never be moved out of the build directory. -# If it is, it will not operate correctly. - -# Sed substitution that helps us do robust quoting. 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There is, deliberately, no --lt-help. -# -# The first argument to this parsing function should be the -# script's $0 value, followed by "$@". -lt_option_debug= -func_parse_lt_options () -{ - lt_script_arg0=\$0 - shift - for lt_opt - do - case \"\$lt_opt\" in - --lt-debug) lt_option_debug=1 ;; - --lt-dump-script) - lt_dump_D=\`\$ECHO \"X\$lt_script_arg0\" | $SED -e 's/^X//' -e 's%/[^/]*$%%'\` - test \"X\$lt_dump_D\" = \"X\$lt_script_arg0\" && lt_dump_D=. - lt_dump_F=\`\$ECHO \"X\$lt_script_arg0\" | $SED -e 's/^X//' -e 's%^.*/%%'\` - cat \"\$lt_dump_D/\$lt_dump_F\" - exit 0 - ;; - --lt-*) - \$ECHO \"Unrecognized --lt- option: '\$lt_opt'\" 1>&2 - exit 1 - ;; - esac - done - - # Print the debug banner immediately: - if test -n \"\$lt_option_debug\"; then - echo \"${outputname}:${output}:\${LINENO}: libtool wrapper (GNU $PACKAGE$TIMESTAMP) $VERSION\" 1>&2 - fi -} - -# Used when --lt-debug. Prints its arguments to stdout -# (redirection is the responsibility of the caller) -func_lt_dump_args () -{ - lt_dump_args_N=1; - for lt_arg - do - \$ECHO \"${outputname}:${output}:\${LINENO}: newargv[\$lt_dump_args_N]: \$lt_arg\" - lt_dump_args_N=\`expr \$lt_dump_args_N + 1\` - done -} - -# Core function for launching the target application -func_exec_program_core () -{ -" - case $host in - # Backslashes separate directories on plain windows - *-*-mingw | *-*-os2* | *-cegcc*) - $ECHO "\ - if test -n \"\$lt_option_debug\"; then - \$ECHO \"${outputname}:${output}:\${LINENO}: newargv[0]: \$progdir\\\\\$program\" 1>&2 - func_lt_dump_args \${1+\"\$@\"} 1>&2 - fi - exec \"\$progdir\\\\\$program\" \${1+\"\$@\"} -" - ;; - - *) - $ECHO "\ - if test -n \"\$lt_option_debug\"; then - \$ECHO \"${outputname}:${output}:\${LINENO}: newargv[0]: \$progdir/\$program\" 1>&2 - func_lt_dump_args \${1+\"\$@\"} 1>&2 - fi - exec \"\$progdir/\$program\" \${1+\"\$@\"} -" - ;; - esac - $ECHO "\ - \$ECHO \"\$0: cannot exec \$program \$*\" 1>&2 - exit 1 -} - -# A function to encapsulate launching the target application -# Strips options in the --lt-* namespace from \$@ and -# launches target application with the remaining arguments. -func_exec_program () -{ - case \" \$* \" in - *\\ --lt-*) - for lt_wr_arg - do - case \$lt_wr_arg in - --lt-*) ;; - *) set x \"\$@\" \"\$lt_wr_arg\"; shift;; - esac - shift - done ;; - esac - func_exec_program_core \${1+\"\$@\"} -} - - # Parse options - func_parse_lt_options \"\$0\" \${1+\"\$@\"} - - # Find the directory that this script lives in. - thisdir=\`\$ECHO \"\$file\" | $SED 's%/[^/]*$%%'\` - test \"x\$thisdir\" = \"x\$file\" && thisdir=. - - # Follow symbolic links until we get to the real thisdir. - file=\`ls -ld \"\$file\" | $SED -n 's/.*-> //p'\` - while test -n \"\$file\"; do - destdir=\`\$ECHO \"\$file\" | $SED 's%/[^/]*\$%%'\` - - # If there was a directory component, then change thisdir. - if test \"x\$destdir\" != \"x\$file\"; then - case \"\$destdir\" in - [\\\\/]* | [A-Za-z]:[\\\\/]*) thisdir=\"\$destdir\" ;; - *) thisdir=\"\$thisdir/\$destdir\" ;; - esac - fi - - file=\`\$ECHO \"\$file\" | $SED 's%^.*/%%'\` - file=\`ls -ld \"\$thisdir/\$file\" | $SED -n 's/.*-> //p'\` - done - - # Usually 'no', except on cygwin/mingw when embedded into - # the cwrapper. - WRAPPER_SCRIPT_BELONGS_IN_OBJDIR=$func_emit_wrapper_arg1 - if test \"\$WRAPPER_SCRIPT_BELONGS_IN_OBJDIR\" = \"yes\"; then - # special case for '.' - if test \"\$thisdir\" = \".\"; then - thisdir=\`pwd\` - fi - # remove .libs from thisdir - case \"\$thisdir\" in - *[\\\\/]$objdir ) thisdir=\`\$ECHO \"\$thisdir\" | $SED 's%[\\\\/][^\\\\/]*$%%'\` ;; - $objdir ) thisdir=. ;; - esac - fi - - # Try to get the absolute directory name. - absdir=\`cd \"\$thisdir\" && pwd\` - test -n \"\$absdir\" && thisdir=\"\$absdir\" -" - - if test "$fast_install" = yes; then - $ECHO "\ - program=lt-'$outputname'$exeext - progdir=\"\$thisdir/$objdir\" - - if test ! -f \"\$progdir/\$program\" || - { file=\`ls -1dt \"\$progdir/\$program\" \"\$progdir/../\$program\" 2>/dev/null | ${SED} 1q\`; \\ - test \"X\$file\" != \"X\$progdir/\$program\"; }; then - - file=\"\$\$-\$program\" - - if test ! -d \"\$progdir\"; then - $MKDIR \"\$progdir\" - else - $RM \"\$progdir/\$file\" - fi" - - $ECHO "\ - - # relink executable if necessary - if test -n \"\$relink_command\"; then - if relink_command_output=\`eval \$relink_command 2>&1\`; then : - else - $ECHO \"\$relink_command_output\" >&2 - $RM \"\$progdir/\$file\" - exit 1 - fi - fi - - $MV \"\$progdir/\$file\" \"\$progdir/\$program\" 2>/dev/null || - { $RM \"\$progdir/\$program\"; - $MV \"\$progdir/\$file\" \"\$progdir/\$program\"; } - $RM \"\$progdir/\$file\" - fi" - else - $ECHO "\ - program='$outputname' - progdir=\"\$thisdir/$objdir\" -" - fi - - $ECHO "\ - - if test -f \"\$progdir/\$program\"; then" - - # fixup the dll searchpath if we need to. - # - # Fix the DLL searchpath if we need to. Do this before prepending - # to shlibpath, because on Windows, both are PATH and uninstalled - # libraries must come first. - if test -n "$dllsearchpath"; then - $ECHO "\ - # Add the dll search path components to the executable PATH - PATH=$dllsearchpath:\$PATH -" - fi - - # Export our shlibpath_var if we have one. - if test "$shlibpath_overrides_runpath" = yes && test -n "$shlibpath_var" && test -n "$temp_rpath"; then - $ECHO "\ - # Add our own library path to $shlibpath_var - $shlibpath_var=\"$temp_rpath\$$shlibpath_var\" - - # Some systems cannot cope with colon-terminated $shlibpath_var - # The second colon is a workaround for a bug in BeOS R4 sed - $shlibpath_var=\`\$ECHO \"\$$shlibpath_var\" | $SED 's/::*\$//'\` - - export $shlibpath_var -" - fi - - $ECHO "\ - if test \"\$libtool_execute_magic\" != \"$magic\"; then - # Run the actual program with our arguments. - func_exec_program \${1+\"\$@\"} - fi - else - # The program doesn't exist. - \$ECHO \"\$0: error: \\\`\$progdir/\$program' does not exist\" 1>&2 - \$ECHO \"This script is just a wrapper for \$program.\" 1>&2 - \$ECHO \"See the $PACKAGE documentation for more information.\" 1>&2 - exit 1 - fi -fi\ -" -} - - -# func_emit_cwrapperexe_src -# emit the source code for a wrapper executable on stdout -# Must ONLY be called from within func_mode_link because -# it depends on a number of variable set therein. -func_emit_cwrapperexe_src () -{ - cat < -#include -#ifdef _MSC_VER -# include -# include -# include -#else -# include -# include -# ifdef __CYGWIN__ -# include -# endif -#endif -#include -#include -#include -#include -#include -#include -#include -#include - -/* declarations of non-ANSI functions */ -#if defined(__MINGW32__) -# ifdef __STRICT_ANSI__ -int _putenv (const char *); -# endif -#elif defined(__CYGWIN__) -# ifdef __STRICT_ANSI__ -char *realpath (const char *, char *); -int putenv (char *); -int setenv (const char *, const char *, int); -# endif -/* #elif defined (other platforms) ... */ -#endif - -/* portability defines, excluding path handling macros */ -#if defined(_MSC_VER) -# define setmode _setmode -# define stat _stat -# define chmod _chmod -# define getcwd _getcwd -# define putenv _putenv -# define S_IXUSR _S_IEXEC -# ifndef _INTPTR_T_DEFINED -# define _INTPTR_T_DEFINED -# define intptr_t int -# endif -#elif defined(__MINGW32__) -# define setmode _setmode -# define stat _stat -# define chmod _chmod -# define getcwd _getcwd -# define putenv _putenv -#elif defined(__CYGWIN__) -# define HAVE_SETENV -# define FOPEN_WB "wb" -/* #elif defined (other platforms) ... */ -#endif - -#if defined(PATH_MAX) -# define LT_PATHMAX PATH_MAX -#elif defined(MAXPATHLEN) -# define LT_PATHMAX MAXPATHLEN -#else -# define LT_PATHMAX 1024 -#endif - -#ifndef S_IXOTH -# define S_IXOTH 0 -#endif -#ifndef S_IXGRP -# define S_IXGRP 0 -#endif - -/* path handling portability macros */ -#ifndef DIR_SEPARATOR -# define DIR_SEPARATOR '/' -# define PATH_SEPARATOR ':' -#endif - -#if defined (_WIN32) || defined (__MSDOS__) || defined (__DJGPP__) || \ - defined (__OS2__) -# define HAVE_DOS_BASED_FILE_SYSTEM -# define FOPEN_WB "wb" -# ifndef DIR_SEPARATOR_2 -# define DIR_SEPARATOR_2 '\\' -# endif -# ifndef PATH_SEPARATOR_2 -# define PATH_SEPARATOR_2 ';' -# endif -#endif - -#ifndef DIR_SEPARATOR_2 -# define IS_DIR_SEPARATOR(ch) ((ch) == DIR_SEPARATOR) -#else /* DIR_SEPARATOR_2 */ -# define IS_DIR_SEPARATOR(ch) \ - (((ch) == DIR_SEPARATOR) || ((ch) == DIR_SEPARATOR_2)) -#endif /* DIR_SEPARATOR_2 */ - -#ifndef PATH_SEPARATOR_2 -# define IS_PATH_SEPARATOR(ch) ((ch) == PATH_SEPARATOR) -#else /* PATH_SEPARATOR_2 */ -# define IS_PATH_SEPARATOR(ch) ((ch) == PATH_SEPARATOR_2) -#endif /* PATH_SEPARATOR_2 */ - -#ifndef FOPEN_WB -# define FOPEN_WB "w" -#endif -#ifndef _O_BINARY -# define _O_BINARY 0 -#endif - -#define XMALLOC(type, num) ((type *) xmalloc ((num) * sizeof(type))) -#define XFREE(stale) do { \ - if (stale) { free ((void *) stale); stale = 0; } \ -} while (0) - -#if defined(LT_DEBUGWRAPPER) -static int lt_debug = 1; -#else -static int lt_debug = 0; -#endif - -const char *program_name = "libtool-wrapper"; /* in case xstrdup fails */ - -void *xmalloc (size_t num); -char *xstrdup (const char *string); -const char *base_name (const char *name); -char *find_executable (const char *wrapper); -char *chase_symlinks (const char *pathspec); -int make_executable (const char *path); -int check_executable (const char *path); -char *strendzap (char *str, const char *pat); -void lt_debugprintf (const char *file, int line, const char *fmt, ...); -void lt_fatal (const char *file, int line, const char *message, ...); -static const char *nonnull (const char *s); -static const char *nonempty (const char *s); -void lt_setenv (const char *name, const char *value); -char *lt_extend_str (const char *orig_value, const char *add, int to_end); -void lt_update_exe_path (const char *name, const char *value); -void lt_update_lib_path (const char *name, const char *value); -char **prepare_spawn (char **argv); -void lt_dump_script (FILE *f); -EOF - - cat <= 0) - && (st.st_mode & (S_IXUSR | S_IXGRP | S_IXOTH))) - return 1; - else - return 0; -} - -int -make_executable (const char *path) -{ - int rval = 0; - struct stat st; - - lt_debugprintf (__FILE__, __LINE__, "(make_executable): %s\n", - nonempty (path)); - if ((!path) || (!*path)) - return 0; - - if (stat (path, &st) >= 0) - { - rval = chmod (path, st.st_mode | S_IXOTH | S_IXGRP | S_IXUSR); - } - return rval; -} - -/* Searches for the full path of the wrapper. Returns - newly allocated full path name if found, NULL otherwise - Does not chase symlinks, even on platforms that support them. -*/ -char * -find_executable (const char *wrapper) -{ - int has_slash = 0; - const char *p; - const char *p_next; - /* static buffer for getcwd */ - char tmp[LT_PATHMAX + 1]; - int tmp_len; - char *concat_name; - - lt_debugprintf (__FILE__, __LINE__, "(find_executable): %s\n", - nonempty (wrapper)); - - if ((wrapper == NULL) || (*wrapper == '\0')) - return NULL; - - /* Absolute path? */ -#if defined (HAVE_DOS_BASED_FILE_SYSTEM) - if (isalpha ((unsigned char) wrapper[0]) && wrapper[1] == ':') - { - concat_name = xstrdup (wrapper); - if (check_executable (concat_name)) - return concat_name; - XFREE (concat_name); - } - else - { -#endif - if (IS_DIR_SEPARATOR (wrapper[0])) - { - concat_name = xstrdup (wrapper); - if (check_executable (concat_name)) - return concat_name; - XFREE (concat_name); - } -#if defined (HAVE_DOS_BASED_FILE_SYSTEM) - } -#endif - - for (p = wrapper; *p; p++) - if (*p == '/') - { - has_slash = 1; - break; - } - if (!has_slash) - { - /* no slashes; search PATH */ - const char *path = getenv ("PATH"); - if (path != NULL) - { - for (p = path; *p; p = p_next) - { - const char *q; - size_t p_len; - for (q = p; *q; q++) - if (IS_PATH_SEPARATOR (*q)) - break; - p_len = q - p; - p_next = (*q == '\0' ? q : q + 1); - if (p_len == 0) - { - /* empty path: current directory */ - if (getcwd (tmp, LT_PATHMAX) == NULL) - lt_fatal (__FILE__, __LINE__, "getcwd failed: %s", - nonnull (strerror (errno))); - tmp_len = strlen (tmp); - concat_name = - XMALLOC (char, tmp_len + 1 + strlen (wrapper) + 1); - memcpy (concat_name, tmp, tmp_len); - concat_name[tmp_len] = '/'; - strcpy (concat_name + tmp_len + 1, wrapper); - } - else - { - concat_name = - XMALLOC (char, p_len + 1 + strlen (wrapper) + 1); - memcpy (concat_name, p, p_len); - concat_name[p_len] = '/'; - strcpy (concat_name + p_len + 1, wrapper); - } - if (check_executable (concat_name)) - return concat_name; - XFREE (concat_name); - } - } - /* not found in PATH; assume curdir */ - } - /* Relative path | not found in path: prepend cwd */ - if (getcwd (tmp, LT_PATHMAX) == NULL) - lt_fatal (__FILE__, __LINE__, "getcwd failed: %s", - nonnull (strerror (errno))); - tmp_len = strlen (tmp); - concat_name = XMALLOC (char, tmp_len + 1 + strlen (wrapper) + 1); - memcpy (concat_name, tmp, tmp_len); - concat_name[tmp_len] = '/'; - strcpy (concat_name + tmp_len + 1, wrapper); - - if (check_executable (concat_name)) - return concat_name; - XFREE (concat_name); - return NULL; -} - -char * -chase_symlinks (const char *pathspec) -{ -#ifndef S_ISLNK - return xstrdup (pathspec); -#else - char buf[LT_PATHMAX]; - struct stat s; - char *tmp_pathspec = xstrdup (pathspec); - char *p; - int has_symlinks = 0; - while (strlen (tmp_pathspec) && !has_symlinks) - { - lt_debugprintf (__FILE__, __LINE__, - "checking path component for symlinks: %s\n", - tmp_pathspec); - if (lstat (tmp_pathspec, &s) == 0) - { - if (S_ISLNK (s.st_mode) != 0) - { - has_symlinks = 1; - break; - } - - /* search backwards for last DIR_SEPARATOR */ - p = tmp_pathspec + strlen (tmp_pathspec) - 1; - while ((p > tmp_pathspec) && (!IS_DIR_SEPARATOR (*p))) - p--; - if ((p == tmp_pathspec) && (!IS_DIR_SEPARATOR (*p))) - { - /* no more DIR_SEPARATORS left */ - break; - } - *p = '\0'; - } - else - { - lt_fatal (__FILE__, __LINE__, - "error accessing file \"%s\": %s", - tmp_pathspec, nonnull (strerror (errno))); - } - } - XFREE (tmp_pathspec); - - if (!has_symlinks) - { - return xstrdup (pathspec); - } - - tmp_pathspec = realpath (pathspec, buf); - if (tmp_pathspec == 0) - { - lt_fatal (__FILE__, __LINE__, - "could not follow symlinks for %s", pathspec); - } - return xstrdup (tmp_pathspec); -#endif -} - -char * -strendzap (char *str, const char *pat) -{ - size_t len, patlen; - - assert (str != NULL); - assert (pat != NULL); - - len = strlen (str); - patlen = strlen (pat); - - if (patlen <= len) - { - str += len - patlen; - if (strcmp (str, pat) == 0) - *str = '\0'; - } - return str; -} - -void -lt_debugprintf (const char *file, int line, const char *fmt, ...) -{ - va_list args; - if (lt_debug) - { - (void) fprintf (stderr, "%s:%s:%d: ", program_name, file, line); - va_start (args, fmt); - (void) vfprintf (stderr, fmt, args); - va_end (args); - } -} - -static void -lt_error_core (int exit_status, const char *file, - int line, const char *mode, - const char *message, va_list ap) -{ - fprintf (stderr, "%s:%s:%d: %s: ", program_name, file, line, mode); - vfprintf (stderr, message, ap); - fprintf (stderr, ".\n"); - - if (exit_status >= 0) - exit (exit_status); -} - -void -lt_fatal (const char *file, int line, const char *message, ...) -{ - va_list ap; - va_start (ap, message); - lt_error_core (EXIT_FAILURE, file, line, "FATAL", message, ap); - va_end (ap); -} - -static const char * -nonnull (const char *s) -{ - return s ? s : "(null)"; -} - -static const char * -nonempty (const char *s) -{ - return (s && !*s) ? "(empty)" : nonnull (s); -} - -void -lt_setenv (const char *name, const char *value) -{ - lt_debugprintf (__FILE__, __LINE__, - "(lt_setenv) setting '%s' to '%s'\n", - nonnull (name), nonnull (value)); - { -#ifdef HAVE_SETENV - /* always make a copy, for consistency with !HAVE_SETENV */ - char *str = xstrdup (value); - setenv (name, str, 1); -#else - int len = strlen (name) + 1 + strlen (value) + 1; - char *str = XMALLOC (char, len); - sprintf (str, "%s=%s", name, value); - if (putenv (str) != EXIT_SUCCESS) - { - XFREE (str); - } -#endif - } -} - -char * -lt_extend_str (const char *orig_value, const char *add, int to_end) -{ - char *new_value; - if (orig_value && *orig_value) - { - int orig_value_len = strlen (orig_value); - int add_len = strlen (add); - new_value = XMALLOC (char, add_len + orig_value_len + 1); - if (to_end) - { - strcpy (new_value, orig_value); - strcpy (new_value + orig_value_len, add); - } - else - { - strcpy (new_value, add); - strcpy (new_value + add_len, orig_value); - } - } - else - { - new_value = xstrdup (add); - } - return new_value; -} - -void -lt_update_exe_path (const char *name, const char *value) -{ - lt_debugprintf (__FILE__, __LINE__, - "(lt_update_exe_path) modifying '%s' by prepending '%s'\n", - nonnull (name), nonnull (value)); - - if (name && *name && value && *value) - { - char *new_value = lt_extend_str (getenv (name), value, 0); - /* some systems can't cope with a ':'-terminated path #' */ - int len = strlen (new_value); - while (((len = strlen (new_value)) > 0) && IS_PATH_SEPARATOR (new_value[len-1])) - { - new_value[len-1] = '\0'; - } - lt_setenv (name, new_value); - XFREE (new_value); - } -} - -void -lt_update_lib_path (const char *name, const char *value) -{ - lt_debugprintf (__FILE__, __LINE__, - "(lt_update_lib_path) modifying '%s' by prepending '%s'\n", - nonnull (name), nonnull (value)); - - if (name && *name && value && *value) - { - char *new_value = lt_extend_str (getenv (name), value, 0); - lt_setenv (name, new_value); - XFREE (new_value); - } -} - -EOF - case $host_os in - mingw*) - cat <<"EOF" - -/* Prepares an argument vector before calling spawn(). - Note that spawn() does not by itself call the command interpreter - (getenv ("COMSPEC") != NULL ? getenv ("COMSPEC") : - ({ OSVERSIONINFO v; v.dwOSVersionInfoSize = sizeof(OSVERSIONINFO); - GetVersionEx(&v); - v.dwPlatformId == VER_PLATFORM_WIN32_NT; - }) ? "cmd.exe" : "command.com"). - Instead it simply concatenates the arguments, separated by ' ', and calls - CreateProcess(). We must quote the arguments since Win32 CreateProcess() - interprets characters like ' ', '\t', '\\', '"' (but not '<' and '>') in a - special way: - - Space and tab are interpreted as delimiters. They are not treated as - delimiters if they are surrounded by double quotes: "...". - - Unescaped double quotes are removed from the input. Their only effect is - that within double quotes, space and tab are treated like normal - characters. - - Backslashes not followed by double quotes are not special. - - But 2*n+1 backslashes followed by a double quote become - n backslashes followed by a double quote (n >= 0): - \" -> " - \\\" -> \" - \\\\\" -> \\" - */ -#define SHELL_SPECIAL_CHARS "\"\\ \001\002\003\004\005\006\007\010\011\012\013\014\015\016\017\020\021\022\023\024\025\026\027\030\031\032\033\034\035\036\037" -#define SHELL_SPACE_CHARS " \001\002\003\004\005\006\007\010\011\012\013\014\015\016\017\020\021\022\023\024\025\026\027\030\031\032\033\034\035\036\037" -char ** -prepare_spawn (char **argv) -{ - size_t argc; - char **new_argv; - size_t i; - - /* Count number of arguments. */ - for (argc = 0; argv[argc] != NULL; argc++) - ; - - /* Allocate new argument vector. */ - new_argv = XMALLOC (char *, argc + 1); - - /* Put quoted arguments into the new argument vector. */ - for (i = 0; i < argc; i++) - { - const char *string = argv[i]; - - if (string[0] == '\0') - new_argv[i] = xstrdup ("\"\""); - else if (strpbrk (string, SHELL_SPECIAL_CHARS) != NULL) - { - int quote_around = (strpbrk (string, SHELL_SPACE_CHARS) != NULL); - size_t length; - unsigned int backslashes; - const char *s; - char *quoted_string; - char *p; - - length = 0; - backslashes = 0; - if (quote_around) - length++; - for (s = string; *s != '\0'; s++) - { - char c = *s; - if (c == '"') - length += backslashes + 1; - length++; - if (c == '\\') - backslashes++; - else - backslashes = 0; - } - if (quote_around) - length += backslashes + 1; - - quoted_string = XMALLOC (char, length + 1); - - p = quoted_string; - backslashes = 0; - if (quote_around) - *p++ = '"'; - for (s = string; *s != '\0'; s++) - { - char c = *s; - if (c == '"') - { - unsigned int j; - for (j = backslashes + 1; j > 0; j--) - *p++ = '\\'; - } - *p++ = c; - if (c == '\\') - backslashes++; - else - backslashes = 0; - } - if (quote_around) - { - unsigned int j; - for (j = backslashes; j > 0; j--) - *p++ = '\\'; - *p++ = '"'; - } - *p = '\0'; - - new_argv[i] = quoted_string; - } - else - new_argv[i] = (char *) string; - } - new_argv[argc] = NULL; - - return new_argv; -} -EOF - ;; - esac - - cat <<"EOF" -void lt_dump_script (FILE* f) -{ -EOF - func_emit_wrapper yes | - $SED -n -e ' -s/^\(.\{79\}\)\(..*\)/\1\ -\2/ -h -s/\([\\"]\)/\\\1/g -s/$/\\n/ -s/\([^\n]*\).*/ fputs ("\1", f);/p -g -D' - cat <<"EOF" -} -EOF -} -# end: func_emit_cwrapperexe_src - -# func_win32_import_lib_p ARG -# True if ARG is an import lib, as indicated by $file_magic_cmd -func_win32_import_lib_p () -{ - $opt_debug - case `eval $file_magic_cmd \"\$1\" 2>/dev/null | $SED -e 10q` in - *import*) : ;; - *) false ;; - esac -} - -# func_mode_link arg... -func_mode_link () -{ - $opt_debug - case $host in - *-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-os2* | *-cegcc*) - # It is impossible to link a dll without this setting, and - # we shouldn't force the makefile maintainer to figure out - # which system we are compiling for in order to pass an extra - # flag for every libtool invocation. - # allow_undefined=no - - # FIXME: Unfortunately, there are problems with the above when trying - # to make a dll which has undefined symbols, in which case not - # even a static library is built. For now, we need to specify - # -no-undefined on the libtool link line when we can be certain - # that all symbols are satisfied, otherwise we get a static library. - allow_undefined=yes - ;; - *) - allow_undefined=yes - ;; - esac - libtool_args=$nonopt - base_compile="$nonopt $@" - compile_command=$nonopt - finalize_command=$nonopt - - compile_rpath= - finalize_rpath= - compile_shlibpath= - finalize_shlibpath= - convenience= - old_convenience= - deplibs= - old_deplibs= - compiler_flags= - linker_flags= - dllsearchpath= - lib_search_path=`pwd` - inst_prefix_dir= - new_inherited_linker_flags= - - avoid_version=no - bindir= - dlfiles= - dlprefiles= - dlself=no - export_dynamic=no - export_symbols= - export_symbols_regex= - generated= - libobjs= - ltlibs= - module=no - no_install=no - objs= - non_pic_objects= - precious_files_regex= - prefer_static_libs=no - preload=no - prev= - prevarg= - release= - rpath= - xrpath= - perm_rpath= - temp_rpath= - thread_safe=no - vinfo= - vinfo_number=no - weak_libs= - single_module="${wl}-single_module" - func_infer_tag $base_compile - - # We need to know -static, to get the right output filenames. - for arg - do - case $arg in - -shared) - test "$build_libtool_libs" != yes && \ - func_fatal_configuration "can not build a shared library" - build_old_libs=no - break - ;; 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then - case $prev in - output) - func_append compile_command " @OUTPUT@" - func_append finalize_command " @OUTPUT@" - ;; - esac - - case $prev in - bindir) - bindir="$arg" - prev= - continue - ;; - dlfiles|dlprefiles) - if test "$preload" = no; then - # Add the symbol object into the linking commands. - func_append compile_command " @SYMFILE@" - func_append finalize_command " @SYMFILE@" - preload=yes - fi - case $arg in - *.la | *.lo) ;; # We handle these cases below. - force) - if test "$dlself" = no; then - dlself=needless - export_dynamic=yes - fi - prev= - continue - ;; - self) - if test "$prev" = dlprefiles; then - dlself=yes - elif test "$prev" = dlfiles && test "$dlopen_self" != yes; then - dlself=yes - else - dlself=needless - export_dynamic=yes - fi - prev= - continue - ;; - *) - if test "$prev" = dlfiles; then - func_append dlfiles " $arg" - else - func_append dlprefiles " $arg" - fi - prev= - continue - ;; - esac - ;; - expsyms) - export_symbols="$arg" - test -f "$arg" \ - || func_fatal_error "symbol file \`$arg' does not exist" - prev= - continue - ;; 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then - # Prepend the subdirectory the object is found in. - pic_object="$xdir$pic_object" - - if test "$prev" = dlfiles; then - if test "$build_libtool_libs" = yes && test "$dlopen_support" = yes; then - func_append dlfiles " $pic_object" - prev= - continue - else - # If libtool objects are unsupported, then we need to preload. - prev=dlprefiles - fi - fi - - # CHECK ME: I think I busted this. -Ossama - if test "$prev" = dlprefiles; then - # Preload the old-style object. - func_append dlprefiles " $pic_object" - prev= - fi - - # A PIC object. - func_append libobjs " $pic_object" - arg="$pic_object" - fi - - # Non-PIC object. - if test "$non_pic_object" != none; then - # Prepend the subdirectory the object is found in. - non_pic_object="$xdir$non_pic_object" - - # A standard non-PIC object - func_append non_pic_objects " $non_pic_object" - if test -z "$pic_object" || test "$pic_object" = none ; then - arg="$non_pic_object" - fi - else - # If the PIC object exists, use it instead. - # $xdir was prepended to $pic_object above. - non_pic_object="$pic_object" - func_append non_pic_objects " $non_pic_object" - fi - else - # Only an error if not doing a dry-run. - if $opt_dry_run; then - # Extract subdirectory from the argument. - func_dirname "$arg" "/" "" - xdir="$func_dirname_result" - - func_lo2o "$arg" - pic_object=$xdir$objdir/$func_lo2o_result - non_pic_object=$xdir$func_lo2o_result - func_append libobjs " $pic_object" - func_append non_pic_objects " $non_pic_object" - else - func_fatal_error "\`$arg' is not a valid libtool object" - fi - fi - done - else - func_fatal_error "link input file \`$arg' does not exist" - fi - arg=$save_arg - prev= - continue - ;; - precious_regex) - precious_files_regex="$arg" - prev= - continue - ;; - release) - release="-$arg" - prev= - continue - ;; - rpath | xrpath) - # We need an absolute path. - case $arg in - [\\/]* | [A-Za-z]:[\\/]*) ;; - *) - func_fatal_error "only absolute run-paths are allowed" - ;; - esac - if test "$prev" = rpath; then - case "$rpath " in - *" $arg "*) ;; - *) func_append rpath " $arg" ;; - esac - else - case "$xrpath " in - *" $arg "*) ;; - *) func_append xrpath " $arg" ;; - esac - fi - prev= - continue - ;; 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It would break on at least - # Digital Unix and AIX. - continue - ;; - - -thread-safe) - thread_safe=yes - continue - ;; - - -version-info) - prev=vinfo - continue - ;; - - -version-number) - prev=vinfo - vinfo_number=yes - continue - ;; - - -weak) - prev=weak - continue - ;; - - -Wc,*) - func_stripname '-Wc,' '' "$arg" - args=$func_stripname_result - arg= - save_ifs="$IFS"; IFS=',' - for flag in $args; do - IFS="$save_ifs" - func_quote_for_eval "$flag" - func_append arg " $func_quote_for_eval_result" - func_append compiler_flags " $func_quote_for_eval_result" - done - IFS="$save_ifs" - func_stripname ' ' '' "$arg" - arg=$func_stripname_result - ;; - - -Wl,*) - func_stripname '-Wl,' '' "$arg" - args=$func_stripname_result - arg= - save_ifs="$IFS"; IFS=',' - for flag in $args; do - IFS="$save_ifs" - func_quote_for_eval "$flag" - func_append arg " $wl$func_quote_for_eval_result" - func_append compiler_flags " $wl$func_quote_for_eval_result" - func_append linker_flags " $func_quote_for_eval_result" - done - IFS="$save_ifs" - func_stripname ' ' '' "$arg" - arg=$func_stripname_result - ;; 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then - # Preload the old-style object. - func_append dlprefiles " $pic_object" - prev= - fi - - # A PIC object. - func_append libobjs " $pic_object" - arg="$pic_object" - fi - - # Non-PIC object. - if test "$non_pic_object" != none; then - # Prepend the subdirectory the object is found in. - non_pic_object="$xdir$non_pic_object" - - # A standard non-PIC object - func_append non_pic_objects " $non_pic_object" - if test -z "$pic_object" || test "$pic_object" = none ; then - arg="$non_pic_object" - fi - else - # If the PIC object exists, use it instead. - # $xdir was prepended to $pic_object above. - non_pic_object="$pic_object" - func_append non_pic_objects " $non_pic_object" - fi - else - # Only an error if not doing a dry-run. - if $opt_dry_run; then - # Extract subdirectory from the argument. - func_dirname "$arg" "/" "" - xdir="$func_dirname_result" - - func_lo2o "$arg" - pic_object=$xdir$objdir/$func_lo2o_result - non_pic_object=$xdir$func_lo2o_result - func_append libobjs " $pic_object" - func_append non_pic_objects " $non_pic_object" - else - func_fatal_error "\`$arg' is not a valid libtool object" - fi - fi - ;; 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then - eval arg=\"$export_dynamic_flag_spec\" - func_append compile_command " $arg" - func_append finalize_command " $arg" - fi - - oldlibs= - # calculate the name of the file, without its directory - func_basename "$output" - outputname="$func_basename_result" - libobjs_save="$libobjs" - - if test -n "$shlibpath_var"; then - # get the directories listed in $shlibpath_var - eval shlib_search_path=\`\$ECHO \"\${$shlibpath_var}\" \| \$SED \'s/:/ /g\'\` - else - shlib_search_path= - fi - eval sys_lib_search_path=\"$sys_lib_search_path_spec\" - eval sys_lib_dlsearch_path=\"$sys_lib_dlsearch_path_spec\" - - func_dirname "$output" "/" "" - output_objdir="$func_dirname_result$objdir" - func_to_tool_file "$output_objdir/" - tool_output_objdir=$func_to_tool_file_result - # Create the object directory. - func_mkdir_p "$output_objdir" - - # Determine the type of output - case $output in - "") - func_fatal_help "you must specify an output file" - ;; - *.$libext) linkmode=oldlib ;; - *.lo | *.$objext) linkmode=obj ;; - *.la) linkmode=lib ;; - *) linkmode=prog ;; # Anything else should be a program. - esac - - specialdeplibs= - - libs= - # Find all interdependent deplibs by searching for libraries - # that are linked more than once (e.g. -la -lb -la) - for deplib in $deplibs; do - if $opt_preserve_dup_deps ; then - case "$libs " in - *" $deplib "*) func_append specialdeplibs " $deplib" ;; - esac - fi - func_append libs " $deplib" - done - - if test "$linkmode" = lib; then - libs="$predeps $libs $compiler_lib_search_path $postdeps" - - # Compute libraries that are listed more than once in $predeps - # $postdeps and mark them as special (i.e., whose duplicates are - # not to be eliminated). - pre_post_deps= - if $opt_duplicate_compiler_generated_deps; then - for pre_post_dep in $predeps $postdeps; do - case "$pre_post_deps " in - *" $pre_post_dep "*) func_append specialdeplibs " $pre_post_deps" ;; - esac - func_append pre_post_deps " $pre_post_dep" - done - fi - pre_post_deps= - fi - - deplibs= - newdependency_libs= - newlib_search_path= - need_relink=no # whether we're linking any uninstalled libtool libraries - notinst_deplibs= # not-installed libtool libraries - notinst_path= # paths that contain not-installed libtool libraries - - case $linkmode in - lib) - passes="conv dlpreopen link" - for file in $dlfiles $dlprefiles; do - case $file in - *.la) ;; - *) - func_fatal_help "libraries can \`-dlopen' only libtool libraries: $file" - ;; - esac - done - ;; - prog) - compile_deplibs= - finalize_deplibs= - alldeplibs=no - newdlfiles= - newdlprefiles= - passes="conv scan dlopen dlpreopen link" - ;; - *) passes="conv" - ;; - esac - - for pass in $passes; do - # The preopen pass in lib mode reverses $deplibs; put it back here - # so that -L comes before libs that need it for instance... - if test "$linkmode,$pass" = "lib,link"; then - ## FIXME: Find the place where the list is rebuilt in the wrong - ## order, and fix it there properly - tmp_deplibs= - for deplib in $deplibs; do - tmp_deplibs="$deplib $tmp_deplibs" - done - deplibs="$tmp_deplibs" - fi - - if test "$linkmode,$pass" = "lib,link" || - test "$linkmode,$pass" = "prog,scan"; then - libs="$deplibs" - deplibs= - fi - if test "$linkmode" = prog; then - case $pass in - dlopen) libs="$dlfiles" ;; - dlpreopen) libs="$dlprefiles" ;; - link) libs="$deplibs %DEPLIBS% $dependency_libs" ;; - esac - fi - if test "$linkmode,$pass" = "lib,dlpreopen"; then - # Collect and forward deplibs of preopened libtool libs - for lib in $dlprefiles; do - # Ignore non-libtool-libs - dependency_libs= - func_resolve_sysroot "$lib" - case $lib in - *.la) func_source "$func_resolve_sysroot_result" ;; - esac - - # Collect preopened libtool deplibs, except any this library - # has declared as weak libs - for deplib in $dependency_libs; do - func_basename "$deplib" - deplib_base=$func_basename_result - case " $weak_libs " in - *" $deplib_base "*) ;; - *) func_append deplibs " $deplib" ;; - esac - done - done - libs="$dlprefiles" - fi - if test "$pass" = dlopen; then - # Collect dlpreopened libraries - save_deplibs="$deplibs" - deplibs= - fi - - for deplib in $libs; do - lib= - found=no - case $deplib in - -mt|-mthreads|-kthread|-Kthread|-pthread|-pthreads|--thread-safe \ - |-threads|-fopenmp|-openmp|-mp|-xopenmp|-omp|-qsmp=*) - if test "$linkmode,$pass" = "prog,link"; then - compile_deplibs="$deplib $compile_deplibs" - finalize_deplibs="$deplib $finalize_deplibs" - else - func_append compiler_flags " $deplib" - if test "$linkmode" = lib ; then - case "$new_inherited_linker_flags " in - *" $deplib "*) ;; - * ) func_append new_inherited_linker_flags " $deplib" ;; - esac - fi - fi - continue - ;; - -l*) - if test "$linkmode" != lib && test "$linkmode" != prog; then - func_warning "\`-l' is ignored for archives/objects" - continue - fi - func_stripname '-l' '' "$deplib" - name=$func_stripname_result - if test "$linkmode" = lib; then - searchdirs="$newlib_search_path $lib_search_path $compiler_lib_search_dirs $sys_lib_search_path $shlib_search_path" - else - searchdirs="$newlib_search_path $lib_search_path $sys_lib_search_path $shlib_search_path" - fi - for searchdir in $searchdirs; do - for search_ext in .la $std_shrext .so .a; do - # Search the libtool library - lib="$searchdir/lib${name}${search_ext}" - if test -f "$lib"; then - if test "$search_ext" = ".la"; then - found=yes - else - found=no - fi - break 2 - fi - done - done - if test "$found" != yes; then - # deplib doesn't seem to be a libtool library - if test "$linkmode,$pass" = "prog,link"; then - compile_deplibs="$deplib $compile_deplibs" - finalize_deplibs="$deplib $finalize_deplibs" - else - deplibs="$deplib $deplibs" - test "$linkmode" = lib && newdependency_libs="$deplib $newdependency_libs" - fi - continue - else # deplib is a libtool library - # If $allow_libtool_libs_with_static_runtimes && $deplib is a stdlib, - # We need to do some special things here, and not later. - if test "X$allow_libtool_libs_with_static_runtimes" = "Xyes" ; then - case " $predeps $postdeps " in - *" $deplib "*) - if func_lalib_p "$lib"; then - library_names= - old_library= - func_source "$lib" - for l in $old_library $library_names; do - ll="$l" - done - if test "X$ll" = "X$old_library" ; then # only static version available - found=no - func_dirname "$lib" "" "." - ladir="$func_dirname_result" - lib=$ladir/$old_library - if test "$linkmode,$pass" = "prog,link"; then - compile_deplibs="$deplib $compile_deplibs" - finalize_deplibs="$deplib $finalize_deplibs" - else - deplibs="$deplib $deplibs" - test "$linkmode" = lib && newdependency_libs="$deplib $newdependency_libs" - fi - continue - fi - fi - ;; - *) ;; - esac - fi - fi - ;; # -l - *.ltframework) - if test "$linkmode,$pass" = "prog,link"; then - compile_deplibs="$deplib $compile_deplibs" - finalize_deplibs="$deplib $finalize_deplibs" - else - deplibs="$deplib $deplibs" - if test "$linkmode" = lib ; then - case "$new_inherited_linker_flags " in - *" $deplib "*) ;; - * ) func_append new_inherited_linker_flags " $deplib" ;; - esac - fi - fi - continue - ;; - -L*) - case $linkmode in - lib) - deplibs="$deplib $deplibs" - test "$pass" = conv && continue - newdependency_libs="$deplib $newdependency_libs" - func_stripname '-L' '' "$deplib" - func_resolve_sysroot "$func_stripname_result" - func_append newlib_search_path " $func_resolve_sysroot_result" - ;; - prog) - if test "$pass" = conv; then - deplibs="$deplib $deplibs" - continue - fi - if test "$pass" = scan; then - deplibs="$deplib $deplibs" - else - compile_deplibs="$deplib $compile_deplibs" - finalize_deplibs="$deplib $finalize_deplibs" - fi - func_stripname '-L' '' "$deplib" - func_resolve_sysroot "$func_stripname_result" - func_append newlib_search_path " $func_resolve_sysroot_result" - ;; - *) - func_warning "\`-L' is ignored for archives/objects" - ;; - esac # linkmode - continue - ;; # -L - -R*) - if test "$pass" = link; then - func_stripname '-R' '' "$deplib" - func_resolve_sysroot "$func_stripname_result" - dir=$func_resolve_sysroot_result - # Make sure the xrpath contains only unique directories. - case "$xrpath " in - *" $dir "*) ;; - *) func_append xrpath " $dir" ;; - esac - fi - deplibs="$deplib $deplibs" - continue - ;; - *.la) - func_resolve_sysroot "$deplib" - lib=$func_resolve_sysroot_result - ;; - *.$libext) - if test "$pass" = conv; then - deplibs="$deplib $deplibs" - continue - fi - case $linkmode in - lib) - # Linking convenience modules into shared libraries is allowed, - # but linking other static libraries is non-portable. - case " $dlpreconveniencelibs " in - *" $deplib "*) ;; - *) - valid_a_lib=no - case $deplibs_check_method in - match_pattern*) - set dummy $deplibs_check_method; shift - match_pattern_regex=`expr "$deplibs_check_method" : "$1 \(.*\)"` - if eval "\$ECHO \"$deplib\"" 2>/dev/null | $SED 10q \ - | $EGREP "$match_pattern_regex" > /dev/null; then - valid_a_lib=yes - fi - ;; - pass_all) - valid_a_lib=yes - ;; - esac - if test "$valid_a_lib" != yes; then - echo - $ECHO "*** Warning: Trying to link with static lib archive $deplib." - echo "*** I have the capability to make that library automatically link in when" - echo "*** you link to this library. But I can only do this if you have a" - echo "*** shared version of the library, which you do not appear to have" - echo "*** because the file extensions .$libext of this argument makes me believe" - echo "*** that it is just a static archive that I should not use here." - else - echo - $ECHO "*** Warning: Linking the shared library $output against the" - $ECHO "*** static library $deplib is not portable!" - deplibs="$deplib $deplibs" - fi - ;; - esac - continue - ;; - prog) - if test "$pass" != link; then - deplibs="$deplib $deplibs" - else - compile_deplibs="$deplib $compile_deplibs" - finalize_deplibs="$deplib $finalize_deplibs" - fi - continue - ;; - esac # linkmode - ;; # *.$libext - *.lo | *.$objext) - if test "$pass" = conv; then - deplibs="$deplib $deplibs" - elif test "$linkmode" = prog; then - if test "$pass" = dlpreopen || test "$dlopen_support" != yes || test "$build_libtool_libs" = no; then - # If there is no dlopen support or we're linking statically, - # we need to preload. - func_append newdlprefiles " $deplib" - compile_deplibs="$deplib $compile_deplibs" - finalize_deplibs="$deplib $finalize_deplibs" - else - func_append newdlfiles " $deplib" - fi - fi - continue - ;; - %DEPLIBS%) - alldeplibs=yes - continue - ;; - esac # case $deplib - - if test "$found" = yes || test -f "$lib"; then : - else - func_fatal_error "cannot find the library \`$lib' or unhandled argument \`$deplib'" - fi - - # Check to see that this really is a libtool archive. - func_lalib_unsafe_p "$lib" \ - || func_fatal_error "\`$lib' is not a valid libtool archive" - - func_dirname "$lib" "" "." - ladir="$func_dirname_result" - - dlname= - dlopen= - dlpreopen= - libdir= - library_names= - old_library= - inherited_linker_flags= - # If the library was installed with an old release of libtool, - # it will not redefine variables installed, or shouldnotlink - installed=yes - shouldnotlink=no - avoidtemprpath= - - - # Read the .la file - func_source "$lib" - - # Convert "-framework foo" to "foo.ltframework" - if test -n "$inherited_linker_flags"; then - tmp_inherited_linker_flags=`$ECHO "$inherited_linker_flags" | $SED 's/-framework \([^ $]*\)/\1.ltframework/g'` - for tmp_inherited_linker_flag in $tmp_inherited_linker_flags; do - case " $new_inherited_linker_flags " in - *" $tmp_inherited_linker_flag "*) ;; - *) func_append new_inherited_linker_flags " $tmp_inherited_linker_flag";; - esac - done - fi - dependency_libs=`$ECHO " $dependency_libs" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'` - if test "$linkmode,$pass" = "lib,link" || - test "$linkmode,$pass" = "prog,scan" || - { test "$linkmode" != prog && test "$linkmode" != lib; }; then - test -n "$dlopen" && func_append dlfiles " $dlopen" - test -n "$dlpreopen" && func_append dlprefiles " $dlpreopen" - fi - - if test "$pass" = conv; then - # Only check for convenience libraries - deplibs="$lib $deplibs" - if test -z "$libdir"; then - if test -z "$old_library"; then - func_fatal_error "cannot find name of link library for \`$lib'" - fi - # It is a libtool convenience library, so add in its objects. - func_append convenience " $ladir/$objdir/$old_library" - func_append old_convenience " $ladir/$objdir/$old_library" - elif test "$linkmode" != prog && test "$linkmode" != lib; then - func_fatal_error "\`$lib' is not a convenience library" - fi - tmp_libs= - for deplib in $dependency_libs; do - deplibs="$deplib $deplibs" - if $opt_preserve_dup_deps ; then - case "$tmp_libs " in - *" $deplib "*) func_append specialdeplibs " $deplib" ;; - esac - fi - func_append tmp_libs " $deplib" - done - continue - fi # $pass = conv - - - # Get the name of the library we link against. - linklib= - if test -n "$old_library" && - { test "$prefer_static_libs" = yes || - test "$prefer_static_libs,$installed" = "built,no"; }; then - linklib=$old_library - else - for l in $old_library $library_names; do - linklib="$l" - done - fi - if test -z "$linklib"; then - func_fatal_error "cannot find name of link library for \`$lib'" - fi - - # This library was specified with -dlopen. - if test "$pass" = dlopen; then - if test -z "$libdir"; then - func_fatal_error "cannot -dlopen a convenience library: \`$lib'" - fi - if test -z "$dlname" || - test "$dlopen_support" != yes || - test "$build_libtool_libs" = no; then - # If there is no dlname, no dlopen support or we're linking - # statically, we need to preload. We also need to preload any - # dependent libraries so libltdl's deplib preloader doesn't - # bomb out in the load deplibs phase. - func_append dlprefiles " $lib $dependency_libs" - else - func_append newdlfiles " $lib" - fi - continue - fi # $pass = dlopen - - # We need an absolute path. - case $ladir in - [\\/]* | [A-Za-z]:[\\/]*) abs_ladir="$ladir" ;; - *) - abs_ladir=`cd "$ladir" && pwd` - if test -z "$abs_ladir"; then - func_warning "cannot determine absolute directory name of \`$ladir'" - func_warning "passing it literally to the linker, although it might fail" - abs_ladir="$ladir" - fi - ;; - esac - func_basename "$lib" - laname="$func_basename_result" - - # Find the relevant object directory and library name. - if test "X$installed" = Xyes; then - if test ! -f "$lt_sysroot$libdir/$linklib" && test -f "$abs_ladir/$linklib"; then - func_warning "library \`$lib' was moved." - dir="$ladir" - absdir="$abs_ladir" - libdir="$abs_ladir" - else - dir="$lt_sysroot$libdir" - absdir="$lt_sysroot$libdir" - fi - test "X$hardcode_automatic" = Xyes && avoidtemprpath=yes - else - if test ! -f "$ladir/$objdir/$linklib" && test -f "$abs_ladir/$linklib"; then - dir="$ladir" - absdir="$abs_ladir" - # Remove this search path later - func_append notinst_path " $abs_ladir" - else - dir="$ladir/$objdir" - absdir="$abs_ladir/$objdir" - # Remove this search path later - func_append notinst_path " $abs_ladir" - fi - fi # $installed = yes - func_stripname 'lib' '.la' "$laname" - name=$func_stripname_result - - # This library was specified with -dlpreopen. - if test "$pass" = dlpreopen; then - if test -z "$libdir" && test "$linkmode" = prog; then - func_fatal_error "only libraries may -dlpreopen a convenience library: \`$lib'" - fi - case "$host" in - # special handling for platforms with PE-DLLs. - *cygwin* | *mingw* | *cegcc* ) - # Linker will automatically link against shared library if both - # static and shared are present. Therefore, ensure we extract - # symbols from the import library if a shared library is present - # (otherwise, the dlopen module name will be incorrect). We do - # this by putting the import library name into $newdlprefiles. - # We recover the dlopen module name by 'saving' the la file - # name in a special purpose variable, and (later) extracting the - # dlname from the la file. - if test -n "$dlname"; then - func_tr_sh "$dir/$linklib" - eval "libfile_$func_tr_sh_result=\$abs_ladir/\$laname" - func_append newdlprefiles " $dir/$linklib" - else - func_append newdlprefiles " $dir/$old_library" - # Keep a list of preopened convenience libraries to check - # that they are being used correctly in the link pass. - test -z "$libdir" && \ - func_append dlpreconveniencelibs " $dir/$old_library" - fi - ;; - * ) - # Prefer using a static library (so that no silly _DYNAMIC symbols - # are required to link). - if test -n "$old_library"; then - func_append newdlprefiles " $dir/$old_library" - # Keep a list of preopened convenience libraries to check - # that they are being used correctly in the link pass. - test -z "$libdir" && \ - func_append dlpreconveniencelibs " $dir/$old_library" - # Otherwise, use the dlname, so that lt_dlopen finds it. - elif test -n "$dlname"; then - func_append newdlprefiles " $dir/$dlname" - else - func_append newdlprefiles " $dir/$linklib" - fi - ;; - esac - fi # $pass = dlpreopen - - if test -z "$libdir"; then - # Link the convenience library - if test "$linkmode" = lib; then - deplibs="$dir/$old_library $deplibs" - elif test "$linkmode,$pass" = "prog,link"; then - compile_deplibs="$dir/$old_library $compile_deplibs" - finalize_deplibs="$dir/$old_library $finalize_deplibs" - else - deplibs="$lib $deplibs" # used for prog,scan pass - fi - continue - fi - - - if test "$linkmode" = prog && test "$pass" != link; then - func_append newlib_search_path " $ladir" - deplibs="$lib $deplibs" - - linkalldeplibs=no - if test "$link_all_deplibs" != no || test -z "$library_names" || - test "$build_libtool_libs" = no; then - linkalldeplibs=yes - fi - - tmp_libs= - for deplib in $dependency_libs; do - case $deplib in - -L*) func_stripname '-L' '' "$deplib" - func_resolve_sysroot "$func_stripname_result" - func_append newlib_search_path " $func_resolve_sysroot_result" - ;; - esac - # Need to link against all dependency_libs? - if test "$linkalldeplibs" = yes; then - deplibs="$deplib $deplibs" - else - # Need to hardcode shared library paths - # or/and link against static libraries - newdependency_libs="$deplib $newdependency_libs" - fi - if $opt_preserve_dup_deps ; then - case "$tmp_libs " in - *" $deplib "*) func_append specialdeplibs " $deplib" ;; - esac - fi - func_append tmp_libs " $deplib" - done # for deplib - continue - fi # $linkmode = prog... - - if test "$linkmode,$pass" = "prog,link"; then - if test -n "$library_names" && - { { test "$prefer_static_libs" = no || - test "$prefer_static_libs,$installed" = "built,yes"; } || - test -z "$old_library"; }; then - # We need to hardcode the library path - if test -n "$shlibpath_var" && test -z "$avoidtemprpath" ; then - # Make sure the rpath contains only unique directories. - case "$temp_rpath:" in - *"$absdir:"*) ;; - *) func_append temp_rpath "$absdir:" ;; - esac - fi - - # Hardcode the library path. - # Skip directories that are in the system default run-time - # search path. - case " $sys_lib_dlsearch_path " in - *" $absdir "*) ;; - *) - case "$compile_rpath " in - *" $absdir "*) ;; - *) func_append compile_rpath " $absdir" ;; - esac - ;; - esac - case " $sys_lib_dlsearch_path " in - *" $libdir "*) ;; - *) - case "$finalize_rpath " in - *" $libdir "*) ;; - *) func_append finalize_rpath " $libdir" ;; - esac - ;; - esac - fi # $linkmode,$pass = prog,link... - - if test "$alldeplibs" = yes && - { test "$deplibs_check_method" = pass_all || - { test "$build_libtool_libs" = yes && - test -n "$library_names"; }; }; then - # We only need to search for static libraries - continue - fi - fi - - link_static=no # Whether the deplib will be linked statically - use_static_libs=$prefer_static_libs - if test "$use_static_libs" = built && test "$installed" = yes; then - use_static_libs=no - fi - if test -n "$library_names" && - { test "$use_static_libs" = no || test -z "$old_library"; }; then - case $host in - *cygwin* | *mingw* | *cegcc*) - # No point in relinking DLLs because paths are not encoded - func_append notinst_deplibs " $lib" - need_relink=no - ;; - *) - if test "$installed" = no; then - func_append notinst_deplibs " $lib" - need_relink=yes - fi - ;; - esac - # This is a shared library - - # Warn about portability, can't link against -module's on some - # systems (darwin). Don't bleat about dlopened modules though! - dlopenmodule="" - for dlpremoduletest in $dlprefiles; do - if test "X$dlpremoduletest" = "X$lib"; then - dlopenmodule="$dlpremoduletest" - break - fi - done - if test -z "$dlopenmodule" && test "$shouldnotlink" = yes && test "$pass" = link; then - echo - if test "$linkmode" = prog; then - $ECHO "*** Warning: Linking the executable $output against the loadable module" - else - $ECHO "*** Warning: Linking the shared library $output against the loadable module" - fi - $ECHO "*** $linklib is not portable!" - fi - if test "$linkmode" = lib && - test "$hardcode_into_libs" = yes; then - # Hardcode the library path. - # Skip directories that are in the system default run-time - # search path. - case " $sys_lib_dlsearch_path " in - *" $absdir "*) ;; - *) - case "$compile_rpath " in - *" $absdir "*) ;; - *) func_append compile_rpath " $absdir" ;; - esac - ;; - esac - case " $sys_lib_dlsearch_path " in - *" $libdir "*) ;; - *) - case "$finalize_rpath " in - *" $libdir "*) ;; - *) func_append finalize_rpath " $libdir" ;; - esac - ;; - esac - fi - - if test -n "$old_archive_from_expsyms_cmds"; then - # figure out the soname - set dummy $library_names - shift - realname="$1" - shift - libname=`eval "\\$ECHO \"$libname_spec\""` - # use dlname if we got it. it's perfectly good, no? - if test -n "$dlname"; then - soname="$dlname" - elif test -n "$soname_spec"; then - # bleh windows - case $host in - *cygwin* | mingw* | *cegcc*) - func_arith $current - $age - major=$func_arith_result - versuffix="-$major" - ;; - esac - eval soname=\"$soname_spec\" - else - soname="$realname" - fi - - # Make a new name for the extract_expsyms_cmds to use - soroot="$soname" - func_basename "$soroot" - soname="$func_basename_result" - func_stripname 'lib' '.dll' "$soname" - newlib=libimp-$func_stripname_result.a - - # If the library has no export list, then create one now - if test -f "$output_objdir/$soname-def"; then : - else - func_verbose "extracting exported symbol list from \`$soname'" - func_execute_cmds "$extract_expsyms_cmds" 'exit $?' - fi - - # Create $newlib - if test -f "$output_objdir/$newlib"; then :; else - func_verbose "generating import library for \`$soname'" - func_execute_cmds "$old_archive_from_expsyms_cmds" 'exit $?' - fi - # make sure the library variables are pointing to the new library - dir=$output_objdir - linklib=$newlib - fi # test -n "$old_archive_from_expsyms_cmds" - - if test "$linkmode" = prog || test "$opt_mode" != relink; then - add_shlibpath= - add_dir= - add= - lib_linked=yes - case $hardcode_action in - immediate | unsupported) - if test "$hardcode_direct" = no; then - add="$dir/$linklib" - case $host in - *-*-sco3.2v5.0.[024]*) add_dir="-L$dir" ;; - *-*-sysv4*uw2*) add_dir="-L$dir" ;; - *-*-sysv5OpenUNIX* | *-*-sysv5UnixWare7.[01].[10]* | \ - *-*-unixware7*) add_dir="-L$dir" ;; - *-*-darwin* ) - # if the lib is a (non-dlopened) module then we can not - # link against it, someone is ignoring the earlier warnings - if /usr/bin/file -L $add 2> /dev/null | - $GREP ": [^:]* bundle" >/dev/null ; then - if test "X$dlopenmodule" != "X$lib"; then - $ECHO "*** Warning: lib $linklib is a module, not a shared library" - if test -z "$old_library" ; then - echo - echo "*** And there doesn't seem to be a static archive available" - echo "*** The link will probably fail, sorry" - else - add="$dir/$old_library" - fi - elif test -n "$old_library"; then - add="$dir/$old_library" - fi - fi - esac - elif test "$hardcode_minus_L" = no; then - case $host in - *-*-sunos*) add_shlibpath="$dir" ;; - esac - add_dir="-L$dir" - add="-l$name" - elif test "$hardcode_shlibpath_var" = no; then - add_shlibpath="$dir" - add="-l$name" - else - lib_linked=no - fi - ;; - relink) - if test "$hardcode_direct" = yes && - test "$hardcode_direct_absolute" = no; then - add="$dir/$linklib" - elif test "$hardcode_minus_L" = yes; then - add_dir="-L$absdir" - # Try looking first in the location we're being installed to. - if test -n "$inst_prefix_dir"; then - case $libdir in - [\\/]*) - func_append add_dir " -L$inst_prefix_dir$libdir" - ;; - esac - fi - add="-l$name" - elif test "$hardcode_shlibpath_var" = yes; then - add_shlibpath="$dir" - add="-l$name" - else - lib_linked=no - fi - ;; - *) lib_linked=no ;; - esac - - if test "$lib_linked" != yes; then - func_fatal_configuration "unsupported hardcode properties" - fi - - if test -n "$add_shlibpath"; then - case :$compile_shlibpath: in - *":$add_shlibpath:"*) ;; - *) func_append compile_shlibpath "$add_shlibpath:" ;; - esac - fi - if test "$linkmode" = prog; then - test -n "$add_dir" && compile_deplibs="$add_dir $compile_deplibs" - test -n "$add" && compile_deplibs="$add $compile_deplibs" - else - test -n "$add_dir" && deplibs="$add_dir $deplibs" - test -n "$add" && deplibs="$add $deplibs" - if test "$hardcode_direct" != yes && - test "$hardcode_minus_L" != yes && - test "$hardcode_shlibpath_var" = yes; then - case :$finalize_shlibpath: in - *":$libdir:"*) ;; - *) func_append finalize_shlibpath "$libdir:" ;; - esac - fi - fi - fi - - if test "$linkmode" = prog || test "$opt_mode" = relink; then - add_shlibpath= - add_dir= - add= - # Finalize command for both is simple: just hardcode it. - if test "$hardcode_direct" = yes && - test "$hardcode_direct_absolute" = no; then - add="$libdir/$linklib" - elif test "$hardcode_minus_L" = yes; then - add_dir="-L$libdir" - add="-l$name" - elif test "$hardcode_shlibpath_var" = yes; then - case :$finalize_shlibpath: in - *":$libdir:"*) ;; - *) func_append finalize_shlibpath "$libdir:" ;; - esac - add="-l$name" - elif test "$hardcode_automatic" = yes; then - if test -n "$inst_prefix_dir" && - test -f "$inst_prefix_dir$libdir/$linklib" ; then - add="$inst_prefix_dir$libdir/$linklib" - else - add="$libdir/$linklib" - fi - else - # We cannot seem to hardcode it, guess we'll fake it. - add_dir="-L$libdir" - # Try looking first in the location we're being installed to. - if test -n "$inst_prefix_dir"; then - case $libdir in - [\\/]*) - func_append add_dir " -L$inst_prefix_dir$libdir" - ;; - esac - fi - add="-l$name" - fi - - if test "$linkmode" = prog; then - test -n "$add_dir" && finalize_deplibs="$add_dir $finalize_deplibs" - test -n "$add" && finalize_deplibs="$add $finalize_deplibs" - else - test -n "$add_dir" && deplibs="$add_dir $deplibs" - test -n "$add" && deplibs="$add $deplibs" - fi - fi - elif test "$linkmode" = prog; then - # Here we assume that one of hardcode_direct or hardcode_minus_L - # is not unsupported. This is valid on all known static and - # shared platforms. - if test "$hardcode_direct" != unsupported; then - test -n "$old_library" && linklib="$old_library" - compile_deplibs="$dir/$linklib $compile_deplibs" - finalize_deplibs="$dir/$linklib $finalize_deplibs" - else - compile_deplibs="-l$name -L$dir $compile_deplibs" - finalize_deplibs="-l$name -L$dir $finalize_deplibs" - fi - elif test "$build_libtool_libs" = yes; then - # Not a shared library - if test "$deplibs_check_method" != pass_all; then - # We're trying link a shared library against a static one - # but the system doesn't support it. - - # Just print a warning and add the library to dependency_libs so - # that the program can be linked against the static library. - echo - $ECHO "*** Warning: This system can not link to static lib archive $lib." - echo "*** I have the capability to make that library automatically link in when" - echo "*** you link to this library. But I can only do this if you have a" - echo "*** shared version of the library, which you do not appear to have." - if test "$module" = yes; then - echo "*** But as you try to build a module library, libtool will still create " - echo "*** a static module, that should work as long as the dlopening application" - echo "*** is linked with the -dlopen flag to resolve symbols at runtime." - if test -z "$global_symbol_pipe"; then - echo - echo "*** However, this would only work if libtool was able to extract symbol" - echo "*** lists from a program, using \`nm' or equivalent, but libtool could" - echo "*** not find such a program. So, this module is probably useless." - echo "*** \`nm' from GNU binutils and a full rebuild may help." - fi - if test "$build_old_libs" = no; then - build_libtool_libs=module - build_old_libs=yes - else - build_libtool_libs=no - fi - fi - else - deplibs="$dir/$old_library $deplibs" - link_static=yes - fi - fi # link shared/static library? - - if test "$linkmode" = lib; then - if test -n "$dependency_libs" && - { test "$hardcode_into_libs" != yes || - test "$build_old_libs" = yes || - test "$link_static" = yes; }; then - # Extract -R from dependency_libs - temp_deplibs= - for libdir in $dependency_libs; do - case $libdir in - -R*) func_stripname '-R' '' "$libdir" - temp_xrpath=$func_stripname_result - case " $xrpath " in - *" $temp_xrpath "*) ;; - *) func_append xrpath " $temp_xrpath";; - esac;; - *) func_append temp_deplibs " $libdir";; - esac - done - dependency_libs="$temp_deplibs" - fi - - func_append newlib_search_path " $absdir" - # Link against this library - test "$link_static" = no && newdependency_libs="$abs_ladir/$laname $newdependency_libs" - # ... and its dependency_libs - tmp_libs= - for deplib in $dependency_libs; do - newdependency_libs="$deplib $newdependency_libs" - case $deplib in - -L*) func_stripname '-L' '' "$deplib" - func_resolve_sysroot "$func_stripname_result";; - *) func_resolve_sysroot "$deplib" ;; - esac - if $opt_preserve_dup_deps ; then - case "$tmp_libs " in - *" $func_resolve_sysroot_result "*) - func_append specialdeplibs " $func_resolve_sysroot_result" ;; - esac - fi - func_append tmp_libs " $func_resolve_sysroot_result" - done - - if test "$link_all_deplibs" != no; then - # Add the search paths of all dependency libraries - for deplib in $dependency_libs; do - path= - case $deplib in - -L*) path="$deplib" ;; - *.la) - func_resolve_sysroot "$deplib" - deplib=$func_resolve_sysroot_result - func_dirname "$deplib" "" "." - dir=$func_dirname_result - # We need an absolute path. - case $dir in - [\\/]* | [A-Za-z]:[\\/]*) absdir="$dir" ;; - *) - absdir=`cd "$dir" && pwd` - if test -z "$absdir"; then - func_warning "cannot determine absolute directory name of \`$dir'" - absdir="$dir" - fi - ;; - esac - if $GREP "^installed=no" $deplib > /dev/null; then - case $host in - *-*-darwin*) - depdepl= - eval deplibrary_names=`${SED} -n -e 's/^library_names=\(.*\)$/\1/p' $deplib` - if test -n "$deplibrary_names" ; then - for tmp in $deplibrary_names ; do - depdepl=$tmp - done - if test -f "$absdir/$objdir/$depdepl" ; then - depdepl="$absdir/$objdir/$depdepl" - darwin_install_name=`${OTOOL} -L $depdepl | awk '{if (NR == 2) {print $1;exit}}'` - if test -z "$darwin_install_name"; then - darwin_install_name=`${OTOOL64} -L $depdepl | awk '{if (NR == 2) {print $1;exit}}'` - fi - func_append compiler_flags " ${wl}-dylib_file ${wl}${darwin_install_name}:${depdepl}" - func_append linker_flags " -dylib_file ${darwin_install_name}:${depdepl}" - path= - fi - fi - ;; - *) - path="-L$absdir/$objdir" - ;; - esac - else - eval libdir=`${SED} -n -e 's/^libdir=\(.*\)$/\1/p' $deplib` - test -z "$libdir" && \ - func_fatal_error "\`$deplib' is not a valid libtool archive" - test "$absdir" != "$libdir" && \ - func_warning "\`$deplib' seems to be moved" - - path="-L$absdir" - fi - ;; - esac - case " $deplibs " in - *" $path "*) ;; - *) deplibs="$path $deplibs" ;; - esac - done - fi # link_all_deplibs != no - fi # linkmode = lib - done # for deplib in $libs - if test "$pass" = link; then - if test "$linkmode" = "prog"; then - compile_deplibs="$new_inherited_linker_flags $compile_deplibs" - finalize_deplibs="$new_inherited_linker_flags $finalize_deplibs" - else - compiler_flags="$compiler_flags "`$ECHO " $new_inherited_linker_flags" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'` - fi - fi - dependency_libs="$newdependency_libs" - if test "$pass" = dlpreopen; then - # Link the dlpreopened libraries before other libraries - for deplib in $save_deplibs; do - deplibs="$deplib $deplibs" - done - fi - if test "$pass" != dlopen; then - if test "$pass" != conv; then - # Make sure lib_search_path contains only unique directories. - lib_search_path= - for dir in $newlib_search_path; do - case "$lib_search_path " in - *" $dir "*) ;; - *) func_append lib_search_path " $dir" ;; - esac - done - newlib_search_path= - fi - - if test "$linkmode,$pass" != "prog,link"; then - vars="deplibs" - else - vars="compile_deplibs finalize_deplibs" - fi - for var in $vars dependency_libs; do - # Add libraries to $var in reverse order - eval tmp_libs=\"\$$var\" - new_libs= - for deplib in $tmp_libs; do - # FIXME: Pedantically, this is the right thing to do, so - # that some nasty dependency loop isn't accidentally - # broken: - #new_libs="$deplib $new_libs" - # Pragmatically, this seems to cause very few problems in - # practice: - case $deplib in - -L*) new_libs="$deplib $new_libs" ;; - -R*) ;; - *) - # And here is the reason: when a library appears more - # than once as an explicit dependence of a library, or - # is implicitly linked in more than once by the - # compiler, it is considered special, and multiple - # occurrences thereof are not removed. Compare this - # with having the same library being listed as a - # dependency of multiple other libraries: in this case, - # we know (pedantically, we assume) the library does not - # need to be listed more than once, so we keep only the - # last copy. This is not always right, but it is rare - # enough that we require users that really mean to play - # such unportable linking tricks to link the library - # using -Wl,-lname, so that libtool does not consider it - # for duplicate removal. - case " $specialdeplibs " in - *" $deplib "*) new_libs="$deplib $new_libs" ;; - *) - case " $new_libs " in - *" $deplib "*) ;; - *) new_libs="$deplib $new_libs" ;; - esac - ;; - esac - ;; - esac - done - tmp_libs= - for deplib in $new_libs; do - case $deplib in - -L*) - case " $tmp_libs " in - *" $deplib "*) ;; - *) func_append tmp_libs " $deplib" ;; - esac - ;; - *) func_append tmp_libs " $deplib" ;; - esac - done - eval $var=\"$tmp_libs\" - done # for var - fi - # Last step: remove runtime libs from dependency_libs - # (they stay in deplibs) - tmp_libs= - for i in $dependency_libs ; do - case " $predeps $postdeps $compiler_lib_search_path " in - *" $i "*) - i="" - ;; - esac - if test -n "$i" ; then - func_append tmp_libs " $i" - fi - done - dependency_libs=$tmp_libs - done # for pass - if test "$linkmode" = prog; then - dlfiles="$newdlfiles" - fi - if test "$linkmode" = prog || test "$linkmode" = lib; then - dlprefiles="$newdlprefiles" - fi - - case $linkmode in - oldlib) - if test -n "$dlfiles$dlprefiles" || test "$dlself" != no; then - func_warning "\`-dlopen' is ignored for archives" - fi - - case " $deplibs" in - *\ -l* | *\ -L*) - func_warning "\`-l' and \`-L' are ignored for archives" ;; - esac - - test -n "$rpath" && \ - func_warning "\`-rpath' is ignored for archives" - - test -n "$xrpath" && \ - func_warning "\`-R' is ignored for archives" - - test -n "$vinfo" && \ - func_warning "\`-version-info/-version-number' is ignored for archives" - - test -n "$release" && \ - func_warning "\`-release' is ignored for archives" - - test -n "$export_symbols$export_symbols_regex" && \ - func_warning "\`-export-symbols' is ignored for archives" - - # Now set the variables for building old libraries. - build_libtool_libs=no - oldlibs="$output" - func_append objs "$old_deplibs" - ;; - - lib) - # Make sure we only generate libraries of the form `libNAME.la'. - case $outputname in - lib*) - func_stripname 'lib' '.la' "$outputname" - name=$func_stripname_result - eval shared_ext=\"$shrext_cmds\" - eval libname=\"$libname_spec\" - ;; - *) - test "$module" = no && \ - func_fatal_help "libtool library \`$output' must begin with \`lib'" - - if test "$need_lib_prefix" != no; then - # Add the "lib" prefix for modules if required - func_stripname '' '.la' "$outputname" - name=$func_stripname_result - eval shared_ext=\"$shrext_cmds\" - eval libname=\"$libname_spec\" - else - func_stripname '' '.la' "$outputname" - libname=$func_stripname_result - fi - ;; - esac - - if test -n "$objs"; then - if test "$deplibs_check_method" != pass_all; then - func_fatal_error "cannot build libtool library \`$output' from non-libtool objects on this host:$objs" - else - echo - $ECHO "*** Warning: Linking the shared library $output against the non-libtool" - $ECHO "*** objects $objs is not portable!" - func_append libobjs " $objs" - fi - fi - - test "$dlself" != no && \ - func_warning "\`-dlopen self' is ignored for libtool libraries" - - set dummy $rpath - shift - test "$#" -gt 1 && \ - func_warning "ignoring multiple \`-rpath's for a libtool library" - - install_libdir="$1" - - oldlibs= - if test -z "$rpath"; then - if test "$build_libtool_libs" = yes; then - # Building a libtool convenience library. - # Some compilers have problems with a `.al' extension so - # convenience libraries should have the same extension an - # archive normally would. - oldlibs="$output_objdir/$libname.$libext $oldlibs" - build_libtool_libs=convenience - build_old_libs=yes - fi - - test -n "$vinfo" && \ - func_warning "\`-version-info/-version-number' is ignored for convenience libraries" - - test -n "$release" && \ - func_warning "\`-release' is ignored for convenience libraries" - else - - # Parse the version information argument. - save_ifs="$IFS"; IFS=':' - set dummy $vinfo 0 0 0 - shift - IFS="$save_ifs" - - test -n "$7" && \ - func_fatal_help "too many parameters to \`-version-info'" - - # convert absolute version numbers to libtool ages - # this retains compatibility with .la files and attempts - # to make the code below a bit more comprehensible - - case $vinfo_number in - yes) - number_major="$1" - number_minor="$2" - number_revision="$3" - # - # There are really only two kinds -- those that - # use the current revision as the major version - # and those that subtract age and use age as - # a minor version. But, then there is irix - # which has an extra 1 added just for fun - # - case $version_type in - # correct linux to gnu/linux during the next big refactor - darwin|linux|osf|windows|none) - func_arith $number_major + $number_minor - current=$func_arith_result - age="$number_minor" - revision="$number_revision" - ;; - freebsd-aout|freebsd-elf|qnx|sunos) - current="$number_major" - revision="$number_minor" - age="0" - ;; - irix|nonstopux) - func_arith $number_major + $number_minor - current=$func_arith_result - age="$number_minor" - revision="$number_minor" - lt_irix_increment=no - ;; - esac - ;; - no) - current="$1" - revision="$2" - age="$3" - ;; - esac - - # Check that each of the things are valid numbers. - case $current in - 0|[1-9]|[1-9][0-9]|[1-9][0-9][0-9]|[1-9][0-9][0-9][0-9]|[1-9][0-9][0-9][0-9][0-9]) ;; - *) - func_error "CURRENT \`$current' must be a nonnegative integer" - func_fatal_error "\`$vinfo' is not valid version information" - ;; - esac - - case $revision in - 0|[1-9]|[1-9][0-9]|[1-9][0-9][0-9]|[1-9][0-9][0-9][0-9]|[1-9][0-9][0-9][0-9][0-9]) ;; - *) - func_error "REVISION \`$revision' must be a nonnegative integer" - func_fatal_error "\`$vinfo' is not valid version information" - ;; - esac - - case $age in - 0|[1-9]|[1-9][0-9]|[1-9][0-9][0-9]|[1-9][0-9][0-9][0-9]|[1-9][0-9][0-9][0-9][0-9]) ;; - *) - func_error "AGE \`$age' must be a nonnegative integer" - func_fatal_error "\`$vinfo' is not valid version information" - ;; - esac - - if test "$age" -gt "$current"; then - func_error "AGE \`$age' is greater than the current interface number \`$current'" - func_fatal_error "\`$vinfo' is not valid version information" - fi - - # Calculate the version variables. - major= - versuffix= - verstring= - case $version_type in - none) ;; - - darwin) - # Like Linux, but with the current version available in - # verstring for coding it into the library header - func_arith $current - $age - major=.$func_arith_result - versuffix="$major.$age.$revision" - # Darwin ld doesn't like 0 for these options... - func_arith $current + 1 - minor_current=$func_arith_result - xlcverstring="${wl}-compatibility_version ${wl}$minor_current ${wl}-current_version ${wl}$minor_current.$revision" - verstring="-compatibility_version $minor_current -current_version $minor_current.$revision" - ;; 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then - major= - case $version_type in - darwin) - # we can't check for "0.0" in archive_cmds due to quoting - # problems, so we reset it completely - verstring= - ;; - *) - verstring="0.0" - ;; - esac - if test "$need_version" = no; then - versuffix= - else - versuffix=".0.0" - fi - fi - - # Remove version info from name if versioning should be avoided - if test "$avoid_version" = yes && test "$need_version" = no; then - major= - versuffix= - verstring="" - fi - - # Check to see if the archive will have undefined symbols. - if test "$allow_undefined" = yes; then - if test "$allow_undefined_flag" = unsupported; then - func_warning "undefined symbols not allowed in $host shared libraries" - build_libtool_libs=no - build_old_libs=yes - fi - else - # Don't allow undefined symbols. - allow_undefined_flag="$no_undefined_flag" - fi - - fi - - func_generate_dlsyms "$libname" "$libname" "yes" - func_append libobjs " $symfileobj" - test "X$libobjs" = "X " && libobjs= - - if test "$opt_mode" != relink; then - # Remove our outputs, but don't remove object files since they - # may have been created when compiling PIC objects. - removelist= - tempremovelist=`$ECHO "$output_objdir/*"` - for p in $tempremovelist; do - case $p in - *.$objext | *.gcno) - ;; - $output_objdir/$outputname | $output_objdir/$libname.* | $output_objdir/${libname}${release}.*) - if test "X$precious_files_regex" != "X"; then - if $ECHO "$p" | $EGREP -e "$precious_files_regex" >/dev/null 2>&1 - then - continue - fi - fi - func_append removelist " $p" - ;; - *) ;; - esac - done - test -n "$removelist" && \ - func_show_eval "${RM}r \$removelist" - fi - - # Now set the variables for building old libraries. - if test "$build_old_libs" = yes && test "$build_libtool_libs" != convenience ; then - func_append oldlibs " $output_objdir/$libname.$libext" - - # Transform .lo files to .o files. - oldobjs="$objs "`$ECHO "$libobjs" | $SP2NL | $SED "/\.${libext}$/d; $lo2o" | $NL2SP` - fi - - # Eliminate all temporary directories. - #for path in $notinst_path; do - # lib_search_path=`$ECHO "$lib_search_path " | $SED "s% $path % %g"` - # deplibs=`$ECHO "$deplibs " | $SED "s% -L$path % %g"` - # dependency_libs=`$ECHO "$dependency_libs " | $SED "s% -L$path % %g"` - #done - - if test -n "$xrpath"; then - # If the user specified any rpath flags, then add them. - temp_xrpath= - for libdir in $xrpath; do - func_replace_sysroot "$libdir" - func_append temp_xrpath " -R$func_replace_sysroot_result" - case "$finalize_rpath " in - *" $libdir "*) ;; - *) func_append finalize_rpath " $libdir" ;; - esac - done - if test "$hardcode_into_libs" != yes || test "$build_old_libs" = yes; then - dependency_libs="$temp_xrpath $dependency_libs" - fi - fi - - # Make sure dlfiles contains only unique files that won't be dlpreopened - old_dlfiles="$dlfiles" - dlfiles= - for lib in $old_dlfiles; do - case " $dlprefiles $dlfiles " in - *" $lib "*) ;; - *) func_append dlfiles " $lib" ;; - esac - done - - # Make sure dlprefiles contains only unique files - old_dlprefiles="$dlprefiles" - dlprefiles= - for lib in $old_dlprefiles; 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So, this module is probably useless." - echo "*** \`nm' from GNU binutils and a full rebuild may help." - fi - if test "$build_old_libs" = no; then - oldlibs="$output_objdir/$libname.$libext" - build_libtool_libs=module - build_old_libs=yes - else - build_libtool_libs=no - fi - else - echo "*** The inter-library dependencies that have been dropped here will be" - echo "*** automatically added whenever a program is linked with this library" - echo "*** or is declared to -dlopen it." - - if test "$allow_undefined" = no; then - echo - echo "*** Since this library must not contain undefined symbols," - echo "*** because either the platform does not support them or" - echo "*** it was explicitly requested with -no-undefined," - echo "*** libtool will only create a static version of it." - if test "$build_old_libs" = no; then - oldlibs="$output_objdir/$libname.$libext" - build_libtool_libs=module - build_old_libs=yes - else - build_libtool_libs=no - fi - fi - fi - fi - # Done checking deplibs! - deplibs=$newdeplibs - fi - # Time to change all our "foo.ltframework" stuff back to "-framework foo" - case $host in - *-*-darwin*) - newdeplibs=`$ECHO " $newdeplibs" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'` - new_inherited_linker_flags=`$ECHO " $new_inherited_linker_flags" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'` - deplibs=`$ECHO " $deplibs" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'` - ;; - esac - - # move library search paths that coincide with paths to not yet - # installed libraries to the beginning of the library search list - new_libs= - for path in $notinst_path; do - case " $new_libs " in - *" -L$path/$objdir "*) ;; - *) - case " $deplibs " in - *" -L$path/$objdir "*) - func_append new_libs " -L$path/$objdir" ;; - esac - ;; - esac - done - for deplib in $deplibs; do - case $deplib in - -L*) - case " $new_libs " in - *" $deplib "*) ;; - *) func_append new_libs " $deplib" ;; - esac - ;; - *) func_append new_libs " $deplib" ;; - esac - done - deplibs="$new_libs" - - # All the library-specific variables (install_libdir is set above). - library_names= - old_library= - dlname= - - # Test again, we may have decided not to build it any more - if test "$build_libtool_libs" = yes; then - # Remove ${wl} instances when linking with ld. - # FIXME: should test the right _cmds variable. - case $archive_cmds in - *\$LD\ *) wl= ;; - esac - if test "$hardcode_into_libs" = yes; then - # Hardcode the library paths - hardcode_libdirs= - dep_rpath= - rpath="$finalize_rpath" - test "$opt_mode" != relink && rpath="$compile_rpath$rpath" - for libdir in $rpath; do - if test -n "$hardcode_libdir_flag_spec"; then - if test -n "$hardcode_libdir_separator"; then - func_replace_sysroot "$libdir" - libdir=$func_replace_sysroot_result - if test -z "$hardcode_libdirs"; then - hardcode_libdirs="$libdir" - else - # Just accumulate the unique libdirs. - case $hardcode_libdir_separator$hardcode_libdirs$hardcode_libdir_separator in - *"$hardcode_libdir_separator$libdir$hardcode_libdir_separator"*) - ;; - *) - func_append hardcode_libdirs "$hardcode_libdir_separator$libdir" - ;; - esac - fi - else - eval flag=\"$hardcode_libdir_flag_spec\" - func_append dep_rpath " $flag" - fi - elif test -n "$runpath_var"; then - case "$perm_rpath " in - *" $libdir "*) ;; - *) func_append perm_rpath " $libdir" ;; - esac - fi - done - # Substitute the hardcoded libdirs into the rpath. - if test -n "$hardcode_libdir_separator" && - test -n "$hardcode_libdirs"; then - libdir="$hardcode_libdirs" - eval "dep_rpath=\"$hardcode_libdir_flag_spec\"" - fi - if test -n "$runpath_var" && test -n "$perm_rpath"; then - # We should set the runpath_var. - rpath= - for dir in $perm_rpath; do - func_append rpath "$dir:" - done - eval "$runpath_var='$rpath\$$runpath_var'; export $runpath_var" - fi - test -n "$dep_rpath" && deplibs="$dep_rpath $deplibs" - fi - - shlibpath="$finalize_shlibpath" - test "$opt_mode" != relink && shlibpath="$compile_shlibpath$shlibpath" - if test -n "$shlibpath"; then - eval "$shlibpath_var='$shlibpath\$$shlibpath_var'; export $shlibpath_var" - fi - - # Get the real and link names of the library. - eval shared_ext=\"$shrext_cmds\" - eval library_names=\"$library_names_spec\" - set dummy $library_names - shift - realname="$1" - shift - - if test -n "$soname_spec"; then - eval soname=\"$soname_spec\" - else - soname="$realname" - fi - if test -z "$dlname"; then - dlname=$soname - fi - - lib="$output_objdir/$realname" - linknames= - for link - do - func_append linknames " $link" - done - - # Use standard objects if they are pic - test -z "$pic_flag" && libobjs=`$ECHO "$libobjs" | $SP2NL | $SED "$lo2o" | $NL2SP` - test "X$libobjs" = "X " && libobjs= - - delfiles= - if test -n "$export_symbols" && test -n "$include_expsyms"; then - $opt_dry_run || cp "$export_symbols" "$output_objdir/$libname.uexp" - export_symbols="$output_objdir/$libname.uexp" - func_append delfiles " $export_symbols" - fi - - orig_export_symbols= - case $host_os in - cygwin* | mingw* | cegcc*) - if test -n "$export_symbols" && test -z "$export_symbols_regex"; then - # exporting using user supplied symfile - if test "x`$SED 1q $export_symbols`" != xEXPORTS; then - # and it's NOT already a .def file. Must figure out - # which of the given symbols are data symbols and tag - # them as such. So, trigger use of export_symbols_cmds. - # export_symbols gets reassigned inside the "prepare - # the list of exported symbols" if statement, so the - # include_expsyms logic still works. - orig_export_symbols="$export_symbols" - export_symbols= - always_export_symbols=yes - fi - fi - ;; - esac - - # Prepare the list of exported symbols - if test -z "$export_symbols"; then - if test "$always_export_symbols" = yes || test -n "$export_symbols_regex"; then - func_verbose "generating symbol list for \`$libname.la'" - export_symbols="$output_objdir/$libname.exp" - $opt_dry_run || $RM $export_symbols - cmds=$export_symbols_cmds - save_ifs="$IFS"; IFS='~' - for cmd1 in $cmds; do - IFS="$save_ifs" - # Take the normal branch if the nm_file_list_spec branch - # doesn't work or if tool conversion is not needed. - case $nm_file_list_spec~$to_tool_file_cmd in - *~func_convert_file_noop | *~func_convert_file_msys_to_w32 | ~*) - try_normal_branch=yes - eval cmd=\"$cmd1\" - func_len " $cmd" - len=$func_len_result - ;; - *) - try_normal_branch=no - ;; - esac - if test "$try_normal_branch" = yes \ - && { test "$len" -lt "$max_cmd_len" \ - || test "$max_cmd_len" -le -1; } - then - func_show_eval "$cmd" 'exit $?' - skipped_export=false - elif test -n "$nm_file_list_spec"; then - func_basename "$output" - output_la=$func_basename_result - save_libobjs=$libobjs - save_output=$output - output=${output_objdir}/${output_la}.nm - func_to_tool_file "$output" - libobjs=$nm_file_list_spec$func_to_tool_file_result - func_append delfiles " $output" - func_verbose "creating $NM input file list: $output" - for obj in $save_libobjs; do - func_to_tool_file "$obj" - $ECHO "$func_to_tool_file_result" - done > "$output" - eval cmd=\"$cmd1\" - func_show_eval "$cmd" 'exit $?' - output=$save_output - libobjs=$save_libobjs - skipped_export=false - else - # The command line is too long to execute in one step. - func_verbose "using reloadable object file for export list..." - skipped_export=: - # Break out early, otherwise skipped_export may be - # set to false by a later but shorter cmd. - break - fi - done - IFS="$save_ifs" - if test -n "$export_symbols_regex" && test "X$skipped_export" != "X:"; then - func_show_eval '$EGREP -e "$export_symbols_regex" "$export_symbols" > "${export_symbols}T"' - func_show_eval '$MV "${export_symbols}T" "$export_symbols"' - fi - fi - fi - - if test -n "$export_symbols" && test -n "$include_expsyms"; then - tmp_export_symbols="$export_symbols" - test -n "$orig_export_symbols" && tmp_export_symbols="$orig_export_symbols" - $opt_dry_run || eval '$ECHO "$include_expsyms" | $SP2NL >> "$tmp_export_symbols"' - fi - - if test "X$skipped_export" != "X:" && test -n "$orig_export_symbols"; then - # The given exports_symbols file has to be filtered, so filter it. - func_verbose "filter symbol list for \`$libname.la' to tag DATA exports" - # FIXME: $output_objdir/$libname.filter potentially contains lots of - # 's' commands which not all seds can handle. GNU sed should be fine - # though. Also, the filter scales superlinearly with the number of - # global variables. join(1) would be nice here, but unfortunately - # isn't a blessed tool. - $opt_dry_run || $SED -e '/[ ,]DATA/!d;s,\(.*\)\([ \,].*\),s|^\1$|\1\2|,' < $export_symbols > $output_objdir/$libname.filter - func_append delfiles " $export_symbols $output_objdir/$libname.filter" - export_symbols=$output_objdir/$libname.def - $opt_dry_run || $SED -f $output_objdir/$libname.filter < $orig_export_symbols > $export_symbols - fi - - tmp_deplibs= - for test_deplib in $deplibs; do - case " $convenience " in - *" $test_deplib "*) ;; - *) - func_append tmp_deplibs " $test_deplib" - ;; - esac - done - deplibs="$tmp_deplibs" - - if test -n "$convenience"; then - if test -n "$whole_archive_flag_spec" && - test "$compiler_needs_object" = yes && - test -z "$libobjs"; then - # extract the archives, so we have objects to list. - # TODO: could optimize this to just extract one archive. - whole_archive_flag_spec= - fi - if test -n "$whole_archive_flag_spec"; then - save_libobjs=$libobjs - eval libobjs=\"\$libobjs $whole_archive_flag_spec\" - test "X$libobjs" = "X " && libobjs= - else - gentop="$output_objdir/${outputname}x" - func_append generated " $gentop" - - func_extract_archives $gentop $convenience - func_append libobjs " $func_extract_archives_result" - test "X$libobjs" = "X " && libobjs= - fi - fi - - if test "$thread_safe" = yes && test -n "$thread_safe_flag_spec"; then - eval flag=\"$thread_safe_flag_spec\" - func_append linker_flags " $flag" - fi - - # Make a backup of the uninstalled library when relinking - if test "$opt_mode" = relink; then - $opt_dry_run || eval '(cd $output_objdir && $RM ${realname}U && $MV $realname ${realname}U)' || exit $? - fi - - # Do each of the archive commands. - if test "$module" = yes && test -n "$module_cmds" ; then - if test -n "$export_symbols" && test -n "$module_expsym_cmds"; then - eval test_cmds=\"$module_expsym_cmds\" - cmds=$module_expsym_cmds - else - eval test_cmds=\"$module_cmds\" - cmds=$module_cmds - fi - else - if test -n "$export_symbols" && test -n "$archive_expsym_cmds"; then - eval test_cmds=\"$archive_expsym_cmds\" - cmds=$archive_expsym_cmds - else - eval test_cmds=\"$archive_cmds\" - cmds=$archive_cmds - fi - fi - - if test "X$skipped_export" != "X:" && - func_len " $test_cmds" && - len=$func_len_result && - test "$len" -lt "$max_cmd_len" || test "$max_cmd_len" -le -1; then - : - else - # The command line is too long to link in one step, link piecewise - # or, if using GNU ld and skipped_export is not :, use a linker - # script. - - # Save the value of $output and $libobjs because we want to - # use them later. If we have whole_archive_flag_spec, we - # want to use save_libobjs as it was before - # whole_archive_flag_spec was expanded, because we can't - # assume the linker understands whole_archive_flag_spec. - # This may have to be revisited, in case too many - # convenience libraries get linked in and end up exceeding - # the spec. - if test -z "$convenience" || test -z "$whole_archive_flag_spec"; then - save_libobjs=$libobjs - fi - save_output=$output - func_basename "$output" - output_la=$func_basename_result - - # Clear the reloadable object creation command queue and - # initialize k to one. - test_cmds= - concat_cmds= - objlist= - last_robj= - k=1 - - if test -n "$save_libobjs" && test "X$skipped_export" != "X:" && test "$with_gnu_ld" = yes; then - output=${output_objdir}/${output_la}.lnkscript - func_verbose "creating GNU ld script: $output" - echo 'INPUT (' > $output - for obj in $save_libobjs - do - func_to_tool_file "$obj" - $ECHO "$func_to_tool_file_result" >> $output - done - echo ')' >> $output - func_append delfiles " $output" - func_to_tool_file "$output" - output=$func_to_tool_file_result - elif test -n "$save_libobjs" && test "X$skipped_export" != "X:" && test "X$file_list_spec" != X; then - output=${output_objdir}/${output_la}.lnk - func_verbose "creating linker input file list: $output" - : > $output - set x $save_libobjs - shift - firstobj= - if test "$compiler_needs_object" = yes; then - firstobj="$1 " - shift - fi - for obj - do - func_to_tool_file "$obj" - $ECHO "$func_to_tool_file_result" >> $output - done - func_append delfiles " $output" - func_to_tool_file "$output" - output=$firstobj\"$file_list_spec$func_to_tool_file_result\" - else - if test -n "$save_libobjs"; then - func_verbose "creating reloadable object files..." - output=$output_objdir/$output_la-${k}.$objext - eval test_cmds=\"$reload_cmds\" - func_len " $test_cmds" - len0=$func_len_result - len=$len0 - - # Loop over the list of objects to be linked. - for obj in $save_libobjs - do - func_len " $obj" - func_arith $len + $func_len_result - len=$func_arith_result - if test "X$objlist" = X || - test "$len" -lt "$max_cmd_len"; then - func_append objlist " $obj" - else - # The command $test_cmds is almost too long, add a - # command to the queue. - if test "$k" -eq 1 ; then - # The first file doesn't have a previous command to add. - reload_objs=$objlist - eval concat_cmds=\"$reload_cmds\" - else - # All subsequent reloadable object files will link in - # the last one created. - reload_objs="$objlist $last_robj" - eval concat_cmds=\"\$concat_cmds~$reload_cmds~\$RM $last_robj\" - fi - last_robj=$output_objdir/$output_la-${k}.$objext - func_arith $k + 1 - k=$func_arith_result - output=$output_objdir/$output_la-${k}.$objext - objlist=" $obj" - func_len " $last_robj" - func_arith $len0 + $func_len_result - len=$func_arith_result - fi - done - # Handle the remaining objects by creating one last - # reloadable object file. All subsequent reloadable object - # files will link in the last one created. - test -z "$concat_cmds" || concat_cmds=$concat_cmds~ - reload_objs="$objlist $last_robj" - eval concat_cmds=\"\${concat_cmds}$reload_cmds\" - if test -n "$last_robj"; then - eval concat_cmds=\"\${concat_cmds}~\$RM $last_robj\" - fi - func_append delfiles " $output" - - else - output= - fi - - if ${skipped_export-false}; then - func_verbose "generating symbol list for \`$libname.la'" - export_symbols="$output_objdir/$libname.exp" - $opt_dry_run || $RM $export_symbols - libobjs=$output - # Append the command to create the export file. - test -z "$concat_cmds" || concat_cmds=$concat_cmds~ - eval concat_cmds=\"\$concat_cmds$export_symbols_cmds\" - if test -n "$last_robj"; then - eval concat_cmds=\"\$concat_cmds~\$RM $last_robj\" - fi - fi - - test -n "$save_libobjs" && - func_verbose "creating a temporary reloadable object file: $output" - - # Loop through the commands generated above and execute them. - save_ifs="$IFS"; IFS='~' - for cmd in $concat_cmds; do - IFS="$save_ifs" - $opt_silent || { - func_quote_for_expand "$cmd" - eval "func_echo $func_quote_for_expand_result" - } - $opt_dry_run || eval "$cmd" || { - lt_exit=$? - - # Restore the uninstalled library and exit - if test "$opt_mode" = relink; then - ( cd "$output_objdir" && \ - $RM "${realname}T" && \ - $MV "${realname}U" "$realname" ) - fi - - exit $lt_exit - } - done - IFS="$save_ifs" - - if test -n "$export_symbols_regex" && ${skipped_export-false}; then - func_show_eval '$EGREP -e "$export_symbols_regex" "$export_symbols" > "${export_symbols}T"' - func_show_eval '$MV "${export_symbols}T" "$export_symbols"' - fi - fi - - if ${skipped_export-false}; then - if test -n "$export_symbols" && test -n "$include_expsyms"; then - tmp_export_symbols="$export_symbols" - test -n "$orig_export_symbols" && tmp_export_symbols="$orig_export_symbols" - $opt_dry_run || eval '$ECHO "$include_expsyms" | $SP2NL >> "$tmp_export_symbols"' - fi - - if test -n "$orig_export_symbols"; then - # The given exports_symbols file has to be filtered, so filter it. - func_verbose "filter symbol list for \`$libname.la' to tag DATA exports" - # FIXME: $output_objdir/$libname.filter potentially contains lots of - # 's' commands which not all seds can handle. GNU sed should be fine - # though. Also, the filter scales superlinearly with the number of - # global variables. join(1) would be nice here, but unfortunately - # isn't a blessed tool. - $opt_dry_run || $SED -e '/[ ,]DATA/!d;s,\(.*\)\([ \,].*\),s|^\1$|\1\2|,' < $export_symbols > $output_objdir/$libname.filter - func_append delfiles " $export_symbols $output_objdir/$libname.filter" - export_symbols=$output_objdir/$libname.def - $opt_dry_run || $SED -f $output_objdir/$libname.filter < $orig_export_symbols > $export_symbols - fi - fi - - libobjs=$output - # Restore the value of output. - output=$save_output - - if test -n "$convenience" && test -n "$whole_archive_flag_spec"; then - eval libobjs=\"\$libobjs $whole_archive_flag_spec\" - test "X$libobjs" = "X " && libobjs= - fi - # Expand the library linking commands again to reset the - # value of $libobjs for piecewise linking. - - # Do each of the archive commands. - if test "$module" = yes && test -n "$module_cmds" ; then - if test -n "$export_symbols" && test -n "$module_expsym_cmds"; then - cmds=$module_expsym_cmds - else - cmds=$module_cmds - fi - else - if test -n "$export_symbols" && test -n "$archive_expsym_cmds"; then - cmds=$archive_expsym_cmds - else - cmds=$archive_cmds - fi - fi - fi - - if test -n "$delfiles"; then - # Append the command to remove temporary files to $cmds. - eval cmds=\"\$cmds~\$RM $delfiles\" - fi - - # Add any objects from preloaded convenience libraries - if test -n "$dlprefiles"; then - gentop="$output_objdir/${outputname}x" - func_append generated " $gentop" - - func_extract_archives $gentop $dlprefiles - func_append libobjs " $func_extract_archives_result" - test "X$libobjs" = "X " && libobjs= - fi - - save_ifs="$IFS"; IFS='~' - for cmd in $cmds; do - IFS="$save_ifs" - eval cmd=\"$cmd\" - $opt_silent || { - func_quote_for_expand "$cmd" - eval "func_echo $func_quote_for_expand_result" - } - $opt_dry_run || eval "$cmd" || { - lt_exit=$? - - # Restore the uninstalled library and exit - if test "$opt_mode" = relink; then - ( cd "$output_objdir" && \ - $RM "${realname}T" && \ - $MV "${realname}U" "$realname" ) - fi - - exit $lt_exit - } - done - IFS="$save_ifs" - - # Restore the uninstalled library and exit - if test "$opt_mode" = relink; then - $opt_dry_run || eval '(cd $output_objdir && $RM ${realname}T && $MV $realname ${realname}T && $MV ${realname}U $realname)' || exit $? - - if test -n "$convenience"; then - if test -z "$whole_archive_flag_spec"; then - func_show_eval '${RM}r "$gentop"' - fi - fi - - exit $EXIT_SUCCESS - fi - - # Create links to the real library. - for linkname in $linknames; do - if test "$realname" != "$linkname"; then - func_show_eval '(cd "$output_objdir" && $RM "$linkname" && $LN_S "$realname" "$linkname")' 'exit $?' - fi - done - - # If -module or -export-dynamic was specified, set the dlname. - if test "$module" = yes || test "$export_dynamic" = yes; then - # On all known operating systems, these are identical. - dlname="$soname" - fi - fi - ;; - - obj) - if test -n "$dlfiles$dlprefiles" || test "$dlself" != no; then - func_warning "\`-dlopen' is ignored for objects" - fi - - case " $deplibs" in - *\ -l* | *\ -L*) - func_warning "\`-l' and \`-L' are ignored for objects" ;; - esac - - test -n "$rpath" && \ - func_warning "\`-rpath' is ignored for objects" - - test -n "$xrpath" && \ - func_warning "\`-R' is ignored for objects" - - test -n "$vinfo" && \ - func_warning "\`-version-info' is ignored for objects" - - test -n "$release" && \ - func_warning "\`-release' is ignored for objects" - - case $output in - *.lo) - test -n "$objs$old_deplibs" && \ - func_fatal_error "cannot build library object \`$output' from non-libtool objects" - - libobj=$output - func_lo2o "$libobj" - obj=$func_lo2o_result - ;; - *) - libobj= - obj="$output" - ;; - esac - - # Delete the old objects. - $opt_dry_run || $RM $obj $libobj - - # Objects from convenience libraries. This assumes - # single-version convenience libraries. Whenever we create - # different ones for PIC/non-PIC, this we'll have to duplicate - # the extraction. - reload_conv_objs= - gentop= - # reload_cmds runs $LD directly, so let us get rid of - # -Wl from whole_archive_flag_spec and hope we can get by with - # turning comma into space.. - wl= - - if test -n "$convenience"; then - if test -n "$whole_archive_flag_spec"; then - eval tmp_whole_archive_flags=\"$whole_archive_flag_spec\" - reload_conv_objs=$reload_objs\ `$ECHO "$tmp_whole_archive_flags" | $SED 's|,| |g'` - else - gentop="$output_objdir/${obj}x" - func_append generated " $gentop" - - func_extract_archives $gentop $convenience - reload_conv_objs="$reload_objs $func_extract_archives_result" - fi - fi - - # If we're not building shared, we need to use non_pic_objs - test "$build_libtool_libs" != yes && libobjs="$non_pic_objects" - - # Create the old-style object. - reload_objs="$objs$old_deplibs "`$ECHO "$libobjs" | $SP2NL | $SED "/\.${libext}$/d; /\.lib$/d; $lo2o" | $NL2SP`" $reload_conv_objs" ### testsuite: skip nested quoting test - - output="$obj" - func_execute_cmds "$reload_cmds" 'exit $?' - - # Exit if we aren't doing a library object file. - if test -z "$libobj"; then - if test -n "$gentop"; then - func_show_eval '${RM}r "$gentop"' - fi - - exit $EXIT_SUCCESS - fi - - if test "$build_libtool_libs" != yes; then - if test -n "$gentop"; then - func_show_eval '${RM}r "$gentop"' - fi - - # Create an invalid libtool object if no PIC, so that we don't - # accidentally link it into a program. - # $show "echo timestamp > $libobj" - # $opt_dry_run || eval "echo timestamp > $libobj" || exit $? - exit $EXIT_SUCCESS - fi - - if test -n "$pic_flag" || test "$pic_mode" != default; then - # Only do commands if we really have different PIC objects. - reload_objs="$libobjs $reload_conv_objs" - output="$libobj" - func_execute_cmds "$reload_cmds" 'exit $?' - fi - - if test -n "$gentop"; then - func_show_eval '${RM}r "$gentop"' - fi - - exit $EXIT_SUCCESS - ;; - - prog) - case $host in - *cygwin*) func_stripname '' '.exe' "$output" - output=$func_stripname_result.exe;; - esac - test -n "$vinfo" && \ - func_warning "\`-version-info' is ignored for programs" - - test -n "$release" && \ - func_warning "\`-release' is ignored for programs" - - test "$preload" = yes \ - && test "$dlopen_support" = unknown \ - && test "$dlopen_self" = unknown \ - && test "$dlopen_self_static" = unknown && \ - func_warning "\`LT_INIT([dlopen])' not used. Assuming no dlopen support." - - case $host in - *-*-rhapsody* | *-*-darwin1.[012]) - # On Rhapsody replace the C library is the System framework - compile_deplibs=`$ECHO " $compile_deplibs" | $SED 's/ -lc / System.ltframework /'` - finalize_deplibs=`$ECHO " $finalize_deplibs" | $SED 's/ -lc / System.ltframework /'` - ;; - esac - - case $host in - *-*-darwin*) - # Don't allow lazy linking, it breaks C++ global constructors - # But is supposedly fixed on 10.4 or later (yay!). - if test "$tagname" = CXX ; then - case ${MACOSX_DEPLOYMENT_TARGET-10.0} in - 10.[0123]) - func_append compile_command " ${wl}-bind_at_load" - func_append finalize_command " ${wl}-bind_at_load" - ;; - esac - fi - # Time to change all our "foo.ltframework" stuff back to "-framework foo" - compile_deplibs=`$ECHO " $compile_deplibs" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'` - finalize_deplibs=`$ECHO " $finalize_deplibs" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'` - ;; - esac - - - # move library search paths that coincide with paths to not yet - # installed libraries to the beginning of the library search list - new_libs= - for path in $notinst_path; do - case " $new_libs " in - *" -L$path/$objdir "*) ;; - *) - case " $compile_deplibs " in - *" -L$path/$objdir "*) - func_append new_libs " -L$path/$objdir" ;; - esac - ;; - esac - done - for deplib in $compile_deplibs; do - case $deplib in - -L*) - case " $new_libs " in - *" $deplib "*) ;; - *) func_append new_libs " $deplib" ;; - esac - ;; - *) func_append new_libs " $deplib" ;; - esac - done - compile_deplibs="$new_libs" - - - func_append compile_command " $compile_deplibs" - func_append finalize_command " $finalize_deplibs" - - if test -n "$rpath$xrpath"; then - # If the user specified any rpath flags, then add them. - for libdir in $rpath $xrpath; do - # This is the magic to use -rpath. - case "$finalize_rpath " in - *" $libdir "*) ;; - *) func_append finalize_rpath " $libdir" ;; - esac - done - fi - - # Now hardcode the library paths - rpath= - hardcode_libdirs= - for libdir in $compile_rpath $finalize_rpath; do - if test -n "$hardcode_libdir_flag_spec"; then - if test -n "$hardcode_libdir_separator"; then - if test -z "$hardcode_libdirs"; then - hardcode_libdirs="$libdir" - else - # Just accumulate the unique libdirs. - case $hardcode_libdir_separator$hardcode_libdirs$hardcode_libdir_separator in - *"$hardcode_libdir_separator$libdir$hardcode_libdir_separator"*) - ;; - *) - func_append hardcode_libdirs "$hardcode_libdir_separator$libdir" - ;; - esac - fi - else - eval flag=\"$hardcode_libdir_flag_spec\" - func_append rpath " $flag" - fi - elif test -n "$runpath_var"; then - case "$perm_rpath " in - *" $libdir "*) ;; - *) func_append perm_rpath " $libdir" ;; - esac - fi - case $host in - *-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-os2* | *-cegcc*) - testbindir=`${ECHO} "$libdir" | ${SED} -e 's*/lib$*/bin*'` - case :$dllsearchpath: in - *":$libdir:"*) ;; - ::) dllsearchpath=$libdir;; - *) func_append dllsearchpath ":$libdir";; - esac - case :$dllsearchpath: in - *":$testbindir:"*) ;; - ::) dllsearchpath=$testbindir;; - *) func_append dllsearchpath ":$testbindir";; - esac - ;; - esac - done - # Substitute the hardcoded libdirs into the rpath. - if test -n "$hardcode_libdir_separator" && - test -n "$hardcode_libdirs"; then - libdir="$hardcode_libdirs" - eval rpath=\" $hardcode_libdir_flag_spec\" - fi - compile_rpath="$rpath" - - rpath= - hardcode_libdirs= - for libdir in $finalize_rpath; do - if test -n "$hardcode_libdir_flag_spec"; then - if test -n "$hardcode_libdir_separator"; then - if test -z "$hardcode_libdirs"; then - hardcode_libdirs="$libdir" - else - # Just accumulate the unique libdirs. - case $hardcode_libdir_separator$hardcode_libdirs$hardcode_libdir_separator in - *"$hardcode_libdir_separator$libdir$hardcode_libdir_separator"*) - ;; - *) - func_append hardcode_libdirs "$hardcode_libdir_separator$libdir" - ;; - esac - fi - else - eval flag=\"$hardcode_libdir_flag_spec\" - func_append rpath " $flag" - fi - elif test -n "$runpath_var"; then - case "$finalize_perm_rpath " in - *" $libdir "*) ;; - *) func_append finalize_perm_rpath " $libdir" ;; - esac - fi - done - # Substitute the hardcoded libdirs into the rpath. - if test -n "$hardcode_libdir_separator" && - test -n "$hardcode_libdirs"; then - libdir="$hardcode_libdirs" - eval rpath=\" $hardcode_libdir_flag_spec\" - fi - finalize_rpath="$rpath" - - if test -n "$libobjs" && test "$build_old_libs" = yes; then - # Transform all the library objects into standard objects. - compile_command=`$ECHO "$compile_command" | $SP2NL | $SED "$lo2o" | $NL2SP` - finalize_command=`$ECHO "$finalize_command" | $SP2NL | $SED "$lo2o" | $NL2SP` - fi - - func_generate_dlsyms "$outputname" "@PROGRAM@" "no" - - # template prelinking step - if test -n "$prelink_cmds"; then - func_execute_cmds "$prelink_cmds" 'exit $?' - fi - - wrappers_required=yes - case $host in - *cegcc* | *mingw32ce*) - # Disable wrappers for cegcc and mingw32ce hosts, we are cross compiling anyway. - wrappers_required=no - ;; - *cygwin* | *mingw* ) - if test "$build_libtool_libs" != yes; then - wrappers_required=no - fi - ;; - *) - if test "$need_relink" = no || test "$build_libtool_libs" != yes; then - wrappers_required=no - fi - ;; - esac - if test "$wrappers_required" = no; then - # Replace the output file specification. - compile_command=`$ECHO "$compile_command" | $SED 's%@OUTPUT@%'"$output"'%g'` - link_command="$compile_command$compile_rpath" - - # We have no uninstalled library dependencies, so finalize right now. - exit_status=0 - func_show_eval "$link_command" 'exit_status=$?' - - if test -n "$postlink_cmds"; then - func_to_tool_file "$output" - postlink_cmds=`func_echo_all "$postlink_cmds" | $SED -e 's%@OUTPUT@%'"$output"'%g' -e 's%@TOOL_OUTPUT@%'"$func_to_tool_file_result"'%g'` - func_execute_cmds "$postlink_cmds" 'exit $?' - fi - - # Delete the generated files. - if test -f "$output_objdir/${outputname}S.${objext}"; then - func_show_eval '$RM "$output_objdir/${outputname}S.${objext}"' - fi - - exit $exit_status - fi - - if test -n "$compile_shlibpath$finalize_shlibpath"; then - compile_command="$shlibpath_var=\"$compile_shlibpath$finalize_shlibpath\$$shlibpath_var\" $compile_command" - fi - if test -n "$finalize_shlibpath"; then - finalize_command="$shlibpath_var=\"$finalize_shlibpath\$$shlibpath_var\" $finalize_command" - fi - - compile_var= - finalize_var= - if test -n "$runpath_var"; then - if test -n "$perm_rpath"; then - # We should set the runpath_var. - rpath= - for dir in $perm_rpath; do - func_append rpath "$dir:" - done - compile_var="$runpath_var=\"$rpath\$$runpath_var\" " - fi - if test -n "$finalize_perm_rpath"; then - # We should set the runpath_var. - rpath= - for dir in $finalize_perm_rpath; do - func_append rpath "$dir:" - done - finalize_var="$runpath_var=\"$rpath\$$runpath_var\" " - fi - fi - - if test "$no_install" = yes; then - # We don't need to create a wrapper script. - link_command="$compile_var$compile_command$compile_rpath" - # Replace the output file specification. - link_command=`$ECHO "$link_command" | $SED 's%@OUTPUT@%'"$output"'%g'` - # Delete the old output file. - $opt_dry_run || $RM $output - # Link the executable and exit - func_show_eval "$link_command" 'exit $?' - - if test -n "$postlink_cmds"; then - func_to_tool_file "$output" - postlink_cmds=`func_echo_all "$postlink_cmds" | $SED -e 's%@OUTPUT@%'"$output"'%g' -e 's%@TOOL_OUTPUT@%'"$func_to_tool_file_result"'%g'` - func_execute_cmds "$postlink_cmds" 'exit $?' - fi - - exit $EXIT_SUCCESS - fi - - if test "$hardcode_action" = relink; then - # Fast installation is not supported - link_command="$compile_var$compile_command$compile_rpath" - relink_command="$finalize_var$finalize_command$finalize_rpath" - - func_warning "this platform does not like uninstalled shared libraries" - func_warning "\`$output' will be relinked during installation" - else - if test "$fast_install" != no; then - link_command="$finalize_var$compile_command$finalize_rpath" - if test "$fast_install" = yes; then - relink_command=`$ECHO "$compile_var$compile_command$compile_rpath" | $SED 's%@OUTPUT@%\$progdir/\$file%g'` - else - # fast_install is set to needless - relink_command= - fi - else - link_command="$compile_var$compile_command$compile_rpath" - relink_command="$finalize_var$finalize_command$finalize_rpath" - fi - fi - - # Replace the output file specification. - link_command=`$ECHO "$link_command" | $SED 's%@OUTPUT@%'"$output_objdir/$outputname"'%g'` - - # Delete the old output files. - $opt_dry_run || $RM $output $output_objdir/$outputname $output_objdir/lt-$outputname - - func_show_eval "$link_command" 'exit $?' - - if test -n "$postlink_cmds"; then - func_to_tool_file "$output_objdir/$outputname" - postlink_cmds=`func_echo_all "$postlink_cmds" | $SED -e 's%@OUTPUT@%'"$output_objdir/$outputname"'%g' -e 's%@TOOL_OUTPUT@%'"$func_to_tool_file_result"'%g'` - func_execute_cmds "$postlink_cmds" 'exit $?' - fi - - # Now create the wrapper script. - func_verbose "creating $output" - - # Quote the relink command for shipping. - if test -n "$relink_command"; then - # Preserve any variables that may affect compiler behavior - for var in $variables_saved_for_relink; do - if eval test -z \"\${$var+set}\"; then - relink_command="{ test -z \"\${$var+set}\" || $lt_unset $var || { $var=; export $var; }; }; $relink_command" - elif eval var_value=\$$var; test -z "$var_value"; then - relink_command="$var=; export $var; $relink_command" - else - func_quote_for_eval "$var_value" - relink_command="$var=$func_quote_for_eval_result; export $var; $relink_command" - fi - done - relink_command="(cd `pwd`; $relink_command)" - relink_command=`$ECHO "$relink_command" | $SED "$sed_quote_subst"` - fi - - # Only actually do things if not in dry run mode. - $opt_dry_run || { - # win32 will think the script is a binary if it has - # a .exe suffix, so we strip it off here. - case $output in - *.exe) func_stripname '' '.exe' "$output" - output=$func_stripname_result ;; - esac - # test for cygwin because mv fails w/o .exe extensions - case $host in - *cygwin*) - exeext=.exe - func_stripname '' '.exe' "$outputname" - outputname=$func_stripname_result ;; - *) exeext= ;; - esac - case $host in - *cygwin* | *mingw* ) - func_dirname_and_basename "$output" "" "." - output_name=$func_basename_result - output_path=$func_dirname_result - cwrappersource="$output_path/$objdir/lt-$output_name.c" - cwrapper="$output_path/$output_name.exe" - $RM $cwrappersource $cwrapper - trap "$RM $cwrappersource $cwrapper; exit $EXIT_FAILURE" 1 2 15 - - func_emit_cwrapperexe_src > $cwrappersource - - # The wrapper executable is built using the $host compiler, - # because it contains $host paths and files. If cross- - # compiling, it, like the target executable, must be - # executed on the $host or under an emulation environment. - $opt_dry_run || { - $LTCC $LTCFLAGS -o $cwrapper $cwrappersource - $STRIP $cwrapper - } - - # Now, create the wrapper script for func_source use: - func_ltwrapper_scriptname $cwrapper - $RM $func_ltwrapper_scriptname_result - trap "$RM $func_ltwrapper_scriptname_result; exit $EXIT_FAILURE" 1 2 15 - $opt_dry_run || { - # note: this script will not be executed, so do not chmod. - if test "x$build" = "x$host" ; then - $cwrapper --lt-dump-script > $func_ltwrapper_scriptname_result - else - func_emit_wrapper no > $func_ltwrapper_scriptname_result - fi - } - ;; - * ) - $RM $output - trap "$RM $output; exit $EXIT_FAILURE" 1 2 15 - - func_emit_wrapper no > $output - chmod +x $output - ;; - esac - } - exit $EXIT_SUCCESS - ;; - esac - - # See if we need to build an old-fashioned archive. - for oldlib in $oldlibs; do - - if test "$build_libtool_libs" = convenience; then - oldobjs="$libobjs_save $symfileobj" - addlibs="$convenience" - build_libtool_libs=no - else - if test "$build_libtool_libs" = module; then - oldobjs="$libobjs_save" - build_libtool_libs=no - else - oldobjs="$old_deplibs $non_pic_objects" - if test "$preload" = yes && test -f "$symfileobj"; then - func_append oldobjs " $symfileobj" - fi - fi - addlibs="$old_convenience" - fi - - if test -n "$addlibs"; then - gentop="$output_objdir/${outputname}x" - func_append generated " $gentop" - - func_extract_archives $gentop $addlibs - func_append oldobjs " $func_extract_archives_result" - fi - - # Do each command in the archive commands. - if test -n "$old_archive_from_new_cmds" && test "$build_libtool_libs" = yes; then - cmds=$old_archive_from_new_cmds - else - - # Add any objects from preloaded convenience libraries - if test -n "$dlprefiles"; then - gentop="$output_objdir/${outputname}x" - func_append generated " $gentop" - - func_extract_archives $gentop $dlprefiles - func_append oldobjs " $func_extract_archives_result" - fi - - # POSIX demands no paths to be encoded in archives. 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Setzepfandt, and Guido Vollbeding. -; -; To use this file, rename it to cjpeg.prj. -; If you are using Turbo C, change filenames beginning with "pc..." to "tc..." -; Read installation instructions before trying to make the program! -; -; -; * * * Output file * * * -cjpeg.ttp -; -; * * * COMPILER OPTIONS * * * -.C[-P] ; absolute calls -.C[-M] ; and no string merging, folks -.C[-w-cln] ; no "constant is long" warnings -.C[-w-par] ; no "parameter xxxx unused" -.C[-w-rch] ; no "unreachable code" -.C[-wsig] ; warn if significant digits may be lost -= -; * * * * List of modules * * * * -pcstart.o -cjpeg.c (cdjpeg.h,jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jerror.h,cderror.h,jversion.h) -cdjpeg.c (cdjpeg.h,jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jerror.h,cderror.h) -rdswitch.c (cdjpeg.h,jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jerror.h,cderror.h) -rdppm.c (cdjpeg.h,jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jerror.h,cderror.h) -rdgif.c (cdjpeg.h,jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jerror.h,cderror.h) -rdtarga.c (cdjpeg.h,jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jerror.h,cderror.h) -rdbmp.c (cdjpeg.h,jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jerror.h,cderror.h) -rdrle.c (cdjpeg.h,jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jerror.h,cderror.h) -libjpeg.lib ; built by libjpeg.prj -pcfltlib.lib ; floating point library -; the float library can be omitted if you've turned off DCT_FLOAT_SUPPORTED -pcstdlib.lib ; standard library -pcextlib.lib ; extended library diff --git a/jpg/makdjpeg.st b/jpg/makdjpeg.st deleted file mode 100644 index 4b61404..0000000 --- a/jpg/makdjpeg.st +++ /dev/null @@ -1,36 +0,0 @@ -; Project file for Independent JPEG Group's software -; -; This project file is for Atari ST/STE/TT systems using Pure C or Turbo C. -; Thanks to Frank Moehle, B. Setzepfandt, and Guido Vollbeding. -; -; To use this file, rename it to djpeg.prj. -; If you are using Turbo C, change filenames beginning with "pc..." to "tc..." -; Read installation instructions before trying to make the program! -; -; -; * * * Output file * * * -djpeg.ttp -; -; * * * COMPILER OPTIONS * * * -.C[-P] ; absolute calls -.C[-M] ; and no string merging, folks -.C[-w-cln] ; no "constant is long" warnings -.C[-w-par] ; no "parameter xxxx unused" -.C[-w-rch] ; no "unreachable code" -.C[-wsig] ; warn if significant digits may be lost -= -; * * * * List of modules * * * * -pcstart.o -djpeg.c (cdjpeg.h,jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jerror.h,cderror.h,jversion.h) -cdjpeg.c (cdjpeg.h,jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jerror.h,cderror.h) -rdcolmap.c (cdjpeg.h,jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jerror.h,cderror.h) -wrppm.c (cdjpeg.h,jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jerror.h,cderror.h) -wrgif.c (cdjpeg.h,jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jerror.h,cderror.h) -wrtarga.c (cdjpeg.h,jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jerror.h,cderror.h) -wrbmp.c (cdjpeg.h,jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jerror.h,cderror.h) -wrrle.c (cdjpeg.h,jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jerror.h,cderror.h) -libjpeg.lib ; built by libjpeg.prj -pcfltlib.lib ; floating point library -; the float library can be omitted if you've turned off DCT_FLOAT_SUPPORTED -pcstdlib.lib ; standard library -pcextlib.lib ; extended library diff --git a/jpg/makeadsw.vc6 b/jpg/makeadsw.vc6 deleted file mode 100644 index b44838f..0000000 --- a/jpg/makeadsw.vc6 +++ /dev/null @@ -1,77 +0,0 @@ -Microsoft Developer Studio Workspace File, Format Version 6.00 -# WARNUNG: DIESE ARBEITSBEREICHSDATEI DARF NICHT BEARBEITET ODER GELÖSCHT WERDEN! - 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Zum Erstellen dieses Projekts mit NMAKE -!MESSAGE verwenden Sie den Befehl "Makefile exportieren" und führen Sie den Befehl -!MESSAGE -!MESSAGE NMAKE /f "djpeg.mak". -!MESSAGE -!MESSAGE Sie können beim Ausführen von NMAKE eine Konfiguration angeben -!MESSAGE durch Definieren des Makros CFG in der Befehlszeile. 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Zum Beispiel: -!MESSAGE -!MESSAGE NMAKE /f "djpeg.mak" CFG="djpeg - Win32" -!MESSAGE -!MESSAGE Fr die Konfiguration stehen zur Auswahl: -!MESSAGE -!MESSAGE "djpeg - Win32" (basierend auf "Win32 (x86) Console Application") -!MESSAGE -!ERROR Eine ungltige Konfiguration wurde angegeben. -!ENDIF - -!IF "$(OS)" == "Windows_NT" -NULL= -!ELSE -NULL=nul -!ENDIF - -CPP=cl.exe -RSC=rc.exe -OUTDIR=.\djpeg\Release -INTDIR=.\djpeg\Release -# Begin Custom Macros -OutDir=.\djpeg\Release -# End Custom Macros - -ALL : "$(OUTDIR)\djpeg.exe" - - -CLEAN : - -@erase "$(INTDIR)\cdjpeg.obj" - -@erase "$(INTDIR)\djpeg.obj" - -@erase "$(INTDIR)\rdcolmap.obj" - -@erase "$(INTDIR)\vc60.idb" - -@erase "$(INTDIR)\wrbmp.obj" - -@erase "$(INTDIR)\wrgif.obj" - -@erase "$(INTDIR)\wrppm.obj" - -@erase "$(INTDIR)\wrrle.obj" - -@erase "$(INTDIR)\wrtarga.obj" - -@erase "$(OUTDIR)\djpeg.exe" - -"$(OUTDIR)" : - if not exist "$(OUTDIR)/$(NULL)" mkdir "$(OUTDIR)" - -BSC32=bscmake.exe -BSC32_FLAGS=/nologo /o"$(OUTDIR)\djpeg.bsc" -BSC32_SBRS= \ - -LINK32=link.exe -LINK32_FLAGS=Release\jpeg.lib kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib /nologo /subsystem:console /incremental:no /pdb:"$(OUTDIR)\djpeg.pdb" /machine:I386 /out:"$(OUTDIR)\djpeg.exe" -LINK32_OBJS= \ - "$(INTDIR)\cdjpeg.obj" \ - "$(INTDIR)\djpeg.obj" \ - "$(INTDIR)\rdcolmap.obj" \ - "$(INTDIR)\wrbmp.obj" \ - "$(INTDIR)\wrgif.obj" \ - "$(INTDIR)\wrppm.obj" \ - "$(INTDIR)\wrrle.obj" \ - "$(INTDIR)\wrtarga.obj" - -"$(OUTDIR)\djpeg.exe" : "$(OUTDIR)" $(DEF_FILE) $(LINK32_OBJS) - $(LINK32) @<< - $(LINK32_FLAGS) $(LINK32_OBJS) -<< - -CPP_PROJ=/nologo /G6 /MT /W3 /GX /Ox /Oa /Ob2 /D "WIN32" /D "NDEBUG" /D "_CONSOLE" /Fp"$(INTDIR)\djpeg.pch" /YX /Fo"$(INTDIR)\\" /Fd"$(INTDIR)\\" /FD /c - -.c{$(INTDIR)}.obj:: - $(CPP) @<< - $(CPP_PROJ) $< -<< - -.cpp{$(INTDIR)}.obj:: - $(CPP) @<< - $(CPP_PROJ) $< -<< - -.cxx{$(INTDIR)}.obj:: - $(CPP) @<< - $(CPP_PROJ) $< -<< - -.c{$(INTDIR)}.sbr:: - $(CPP) @<< - $(CPP_PROJ) $< -<< - -.cpp{$(INTDIR)}.sbr:: - $(CPP) @<< - $(CPP_PROJ) $< -<< - -.cxx{$(INTDIR)}.sbr:: - $(CPP) @<< - $(CPP_PROJ) $< -<< - - -!IF "$(NO_EXTERNAL_DEPS)" != "1" -!IF EXISTS("djpeg.dep") -!INCLUDE "djpeg.dep" -!ELSE -!MESSAGE Warning: cannot find "djpeg.dep" -!ENDIF -!ENDIF - - -!IF "$(CFG)" == "djpeg - Win32" -SOURCE=.\cdjpeg.c - -"$(INTDIR)\cdjpeg.obj" : $(SOURCE) "$(INTDIR)" - - -SOURCE=.\djpeg.c - -"$(INTDIR)\djpeg.obj" : $(SOURCE) "$(INTDIR)" - - -SOURCE=.\rdcolmap.c - -"$(INTDIR)\rdcolmap.obj" : $(SOURCE) "$(INTDIR)" - - -SOURCE=.\wrbmp.c - -"$(INTDIR)\wrbmp.obj" : $(SOURCE) "$(INTDIR)" - - -SOURCE=.\wrgif.c - -"$(INTDIR)\wrgif.obj" : $(SOURCE) "$(INTDIR)" - - -SOURCE=.\wrppm.c - -"$(INTDIR)\wrppm.obj" : $(SOURCE) "$(INTDIR)" - - -SOURCE=.\wrrle.c - -"$(INTDIR)\wrrle.obj" : $(SOURCE) "$(INTDIR)" - - -SOURCE=.\wrtarga.c - -"$(INTDIR)\wrtarga.obj" : $(SOURCE) "$(INTDIR)" - - - -!ENDIF - diff --git a/jpg/makedvcx.v10 b/jpg/makedvcx.v10 deleted file mode 100644 index d3e4cbf..0000000 --- a/jpg/makedvcx.v10 +++ /dev/null @@ -1,76 +0,0 @@ - - - - - Release - Win32 - - - - {11043137-B453-4DFA-9010-4D2B9DC1545C} - Win32Proj - djpeg - - - - Application - false - true - Unicode - - - - - - - - - - false - $(ProjectName)\$(Configuration)\ - $(ProjectName)\$(Configuration)\ - - - - Level3 - NotUsing - Full - true - false - WIN32;NDEBUG;_CONSOLE;_CRT_SECURE_NO_WARNINGS - true - true - 4996 - - - Console - true - true - true - Release\jpeg.lib;kernel32.lib;user32.lib;gdi32.lib;winspool.lib;comdlg32.lib;advapi32.lib;shell32.lib;ole32.lib;oleaut32.lib;uuid.lib;odbc32.lib;odbccp32.lib;%(AdditionalDependencies) - - - - - - - - - - - - - - - - - - - - - - - - - - \ No newline at end of file diff --git a/jpg/makefile.ansi b/jpg/makefile.ansi deleted file mode 100644 index 7d0499f..0000000 --- a/jpg/makefile.ansi +++ /dev/null @@ -1,221 +0,0 @@ -# Makefile for Independent JPEG Group's software - -# This makefile is suitable for Unix-like systems with ANSI-capable compilers. -# If you have a non-ANSI compiler, makefile.unix is a better starting point. - -# Read installation instructions before saying "make" !! - -# The name of your C compiler: -CC= cc - -# You may need to adjust these cc options: -CFLAGS= -O -# Generally, we recommend defining any configuration symbols in jconfig.h, -# NOT via -D switches here. - -# Link-time cc options: -LDFLAGS= - -# To link any special libraries, add the necessary -l commands here. -LDLIBS= - -# Put here the object file name for the correct system-dependent memory -# manager file. For Unix this is usually jmemnobs.o, but you may want -# to use jmemansi.o or jmemname.o if you have limited swap space. -SYSDEPMEM= jmemnobs.o - -# miscellaneous OS-dependent stuff -# linker -LN= $(CC) -# file deletion command -RM= rm -f -# library (.a) file creation command -AR= ar rc -# second step in .a creation (use "touch" if not needed) -AR2= ranlib - -# End of configurable options. - - -# source files: JPEG library proper -LIBSOURCES= jaricom.c jcapimin.c jcapistd.c jcarith.c jccoefct.c jccolor.c \ - jcdctmgr.c jchuff.c jcinit.c jcmainct.c jcmarker.c jcmaster.c \ - jcomapi.c jcparam.c jcprepct.c jcsample.c jctrans.c jdapimin.c \ - jdapistd.c jdarith.c jdatadst.c jdatasrc.c jdcoefct.c jdcolor.c \ - jddctmgr.c jdhuff.c jdinput.c jdmainct.c jdmarker.c jdmaster.c \ - jdmerge.c jdpostct.c jdsample.c jdtrans.c jerror.c jfdctflt.c \ - jfdctfst.c jfdctint.c jidctflt.c jidctfst.c jidctint.c jquant1.c \ - jquant2.c jutils.c jmemmgr.c -# memmgr back ends: compile only one of these into a working library -SYSDEPSOURCES= jmemansi.c jmemname.c jmemnobs.c jmemdos.c jmemmac.c -# source files: cjpeg/djpeg/jpegtran applications, also rdjpgcom/wrjpgcom -APPSOURCES= cjpeg.c djpeg.c jpegtran.c rdjpgcom.c wrjpgcom.c cdjpeg.c \ - rdcolmap.c rdswitch.c transupp.c rdppm.c wrppm.c rdgif.c wrgif.c \ - rdtarga.c wrtarga.c rdbmp.c wrbmp.c rdrle.c wrrle.c -SOURCES= $(LIBSOURCES) $(SYSDEPSOURCES) $(APPSOURCES) -# files included by source files -INCLUDES= jdct.h jerror.h jinclude.h jmemsys.h jmorecfg.h jpegint.h \ - jpeglib.h jversion.h cdjpeg.h cderror.h transupp.h -# documentation, test, and support files -DOCS= README install.txt usage.txt cjpeg.1 djpeg.1 jpegtran.1 rdjpgcom.1 \ - wrjpgcom.1 wizard.txt example.c libjpeg.txt structure.txt \ - coderules.txt filelist.txt change.log -MKFILES= configure Makefile.in makefile.ansi makefile.unix makefile.bcc \ - makefile.mc6 makefile.dj makefile.wat makefile.vc makejdsw.vc6 \ - makeadsw.vc6 makejdep.vc6 makejdsp.vc6 makejmak.vc6 makecdep.vc6 \ - makecdsp.vc6 makecmak.vc6 makeddep.vc6 makeddsp.vc6 makedmak.vc6 \ - maketdep.vc6 maketdsp.vc6 maketmak.vc6 makerdep.vc6 makerdsp.vc6 \ - makermak.vc6 makewdep.vc6 makewdsp.vc6 makewmak.vc6 makejsln.v10 \ - makeasln.v10 makejvcx.v10 makejfil.v10 makecvcx.v10 makecfil.v10 \ - makedvcx.v10 makedfil.v10 maketvcx.v10 maketfil.v10 makervcx.v10 \ - makerfil.v10 makewvcx.v10 makewfil.v10 makeproj.mac makcjpeg.st \ - makdjpeg.st makljpeg.st maktjpeg.st makefile.manx makefile.sas \ - makefile.mms makefile.vms makvms.opt -CONFIGFILES= jconfig.cfg jconfig.bcc jconfig.mc6 jconfig.dj jconfig.wat \ - jconfig.vc jconfig.mac jconfig.st jconfig.manx jconfig.sas \ - jconfig.vms -CONFIGUREFILES= config.guess config.sub install-sh ltmain.sh depcomp missing -OTHERFILES= jconfig.txt ckconfig.c ansi2knr.c ansi2knr.1 jmemdosa.asm \ - libjpeg.map -TESTFILES= testorig.jpg testimg.ppm testimg.bmp testimg.jpg testprog.jpg \ - testimgp.jpg -DISTFILES= $(DOCS) $(MKFILES) $(CONFIGFILES) $(SOURCES) $(INCLUDES) \ - $(CONFIGUREFILES) $(OTHERFILES) $(TESTFILES) -# library object files common to compression and decompression -COMOBJECTS= jaricom.o jcomapi.o jutils.o jerror.o jmemmgr.o $(SYSDEPMEM) -# compression library object files -CLIBOBJECTS= jcapimin.o jcapistd.o jcarith.o jctrans.o jcparam.o \ - jdatadst.o jcinit.o jcmaster.o jcmarker.o jcmainct.o jcprepct.o \ - jccoefct.o jccolor.o jcsample.o jchuff.o jcdctmgr.o jfdctfst.o \ - jfdctflt.o jfdctint.o -# decompression library object files -DLIBOBJECTS= jdapimin.o jdapistd.o jdarith.o jdtrans.o jdatasrc.o \ - jdmaster.o jdinput.o jdmarker.o jdhuff.o jdmainct.o \ - jdcoefct.o jdpostct.o jddctmgr.o jidctfst.o jidctflt.o \ - jidctint.o jdsample.o jdcolor.o jquant1.o jquant2.o jdmerge.o -# These objectfiles are included in libjpeg.a -LIBOBJECTS= $(CLIBOBJECTS) $(DLIBOBJECTS) $(COMOBJECTS) -# object files for sample applications (excluding library files) -COBJECTS= cjpeg.o rdppm.o rdgif.o rdtarga.o rdrle.o rdbmp.o rdswitch.o \ - cdjpeg.o -DOBJECTS= djpeg.o wrppm.o wrgif.o wrtarga.o wrrle.o wrbmp.o rdcolmap.o \ - cdjpeg.o -TROBJECTS= jpegtran.o rdswitch.o cdjpeg.o transupp.o - - -all: libjpeg.a cjpeg djpeg jpegtran rdjpgcom wrjpgcom - -libjpeg.a: $(LIBOBJECTS) - $(RM) libjpeg.a - $(AR) libjpeg.a $(LIBOBJECTS) - $(AR2) libjpeg.a - -cjpeg: $(COBJECTS) libjpeg.a - $(LN) $(LDFLAGS) -o cjpeg $(COBJECTS) libjpeg.a $(LDLIBS) - -djpeg: $(DOBJECTS) libjpeg.a - $(LN) $(LDFLAGS) -o djpeg $(DOBJECTS) libjpeg.a $(LDLIBS) - -jpegtran: $(TROBJECTS) libjpeg.a - $(LN) $(LDFLAGS) -o jpegtran $(TROBJECTS) libjpeg.a $(LDLIBS) - -rdjpgcom: rdjpgcom.o - $(LN) $(LDFLAGS) -o rdjpgcom rdjpgcom.o $(LDLIBS) - -wrjpgcom: wrjpgcom.o - $(LN) $(LDFLAGS) -o wrjpgcom wrjpgcom.o $(LDLIBS) - -jconfig.h: jconfig.txt - echo You must prepare a system-dependent jconfig.h file. - echo Please read the installation directions in install.txt. - exit 1 - -clean: - $(RM) *.o cjpeg djpeg jpegtran libjpeg.a rdjpgcom wrjpgcom - $(RM) core testout* - -test: cjpeg djpeg jpegtran - $(RM) testout* - ./djpeg -dct int -ppm -outfile testout.ppm testorig.jpg - ./djpeg -dct int -bmp -colors 256 -outfile testout.bmp testorig.jpg - ./cjpeg -dct int -outfile testout.jpg testimg.ppm - ./djpeg -dct int -ppm -outfile testoutp.ppm testprog.jpg - ./cjpeg -dct int -progressive -opt -outfile testoutp.jpg testimg.ppm - ./jpegtran -outfile testoutt.jpg testprog.jpg - cmp testimg.ppm testout.ppm - cmp testimg.bmp testout.bmp - cmp testimg.jpg testout.jpg - cmp testimg.ppm testoutp.ppm - cmp testimgp.jpg testoutp.jpg - cmp testorig.jpg testoutt.jpg - - -jaricom.o: jaricom.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcapimin.o: jcapimin.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcapistd.o: jcapistd.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcarith.o: jcarith.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jccoefct.o: jccoefct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jccolor.o: jccolor.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcdctmgr.o: jcdctmgr.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h -jchuff.o: jchuff.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcinit.o: jcinit.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcmainct.o: jcmainct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcmarker.o: jcmarker.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcmaster.o: jcmaster.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcomapi.o: jcomapi.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcparam.o: jcparam.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcprepct.o: jcprepct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcsample.o: jcsample.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jctrans.o: jctrans.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdapimin.o: jdapimin.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdapistd.o: jdapistd.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdarith.o: jdarith.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdatadst.o: jdatadst.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h -jdatasrc.o: jdatasrc.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h -jdcoefct.o: jdcoefct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdcolor.o: jdcolor.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jddctmgr.o: jddctmgr.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h -jdhuff.o: jdhuff.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdinput.o: jdinput.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdmainct.o: jdmainct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdmarker.o: jdmarker.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdmaster.o: jdmaster.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdmerge.o: jdmerge.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdpostct.o: jdpostct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdsample.o: jdsample.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdtrans.o: jdtrans.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jerror.o: jerror.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jversion.h jerror.h -jfdctflt.o: jfdctflt.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h -jfdctfst.o: jfdctfst.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h -jfdctint.o: jfdctint.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h -jidctflt.o: jidctflt.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h -jidctfst.o: jidctfst.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h -jidctint.o: jidctint.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h -jquant1.o: jquant1.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jquant2.o: jquant2.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jutils.o: jutils.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jmemmgr.o: jmemmgr.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h -jmemansi.o: jmemansi.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h -jmemname.o: jmemname.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h -jmemnobs.o: jmemnobs.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h -jmemdos.o: jmemdos.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h -jmemmac.o: jmemmac.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h -cjpeg.o: cjpeg.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h jversion.h -djpeg.o: djpeg.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h jversion.h -jpegtran.o: jpegtran.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h transupp.h jversion.h -rdjpgcom.o: rdjpgcom.c jinclude.h jconfig.h -wrjpgcom.o: wrjpgcom.c jinclude.h jconfig.h -cdjpeg.o: cdjpeg.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -rdcolmap.o: rdcolmap.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -rdswitch.o: rdswitch.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -transupp.o: transupp.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h transupp.h -rdppm.o: rdppm.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -wrppm.o: wrppm.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -rdgif.o: rdgif.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -wrgif.o: wrgif.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -rdtarga.o: rdtarga.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -wrtarga.o: wrtarga.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -rdbmp.o: rdbmp.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -wrbmp.o: wrbmp.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -rdrle.o: rdrle.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -wrrle.o: wrrle.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h diff --git a/jpg/makefile.bcc b/jpg/makefile.bcc deleted file mode 100644 index d89e09b..0000000 --- a/jpg/makefile.bcc +++ /dev/null @@ -1,292 +0,0 @@ -# Makefile for Independent JPEG Group's software - -# This makefile is suitable for Borland C on MS-DOS or OS/2. -# It works with Borland C++ for DOS, revision 3.0 or later, -# and has been tested with Borland C++ for OS/2. -# Watch out for optimization bugs in the OS/2 compilers --- see notes below! -# Thanks to Tom Wright and Ge' Weijers (original DOS) and -# Ken Porter (OS/2) for this file. - -# Read installation instructions before saying "make" !! - -# Are we under DOS or OS/2? -!if !$d(DOS) && !$d(OS2) -!if $d(__OS2__) -OS2=1 -!else -DOS=1 -!endif -!endif - -# The name of your C compiler: -CC= bcc - -# You may need to adjust these cc options: -!if $d(DOS) -CFLAGS= -O2 -mm -w-par -w-stu -w-ccc -w-rch -!else -CFLAGS= -O1 -w-par -w-stu -w-ccc -w-rch -!endif -# -O2 enables full code optimization (for pre-3.0 Borland C++, use -O -G -Z). -# -O2 is buggy in Borland OS/2 C++ revision 2.0, so use -O1 there for now. -# If you have Borland OS/2 C++ revision 1.0, use -O or no optimization at all. -# -mm selects medium memory model (near data, far code pointers; DOS only!) -# -w-par suppresses warnings about unused function parameters -# -w-stu suppresses warnings about incomplete structures -# -w-ccc suppresses warnings about compile-time-constant conditions -# -w-rch suppresses warnings about unreachable code -# Generally, we recommend defining any configuration symbols in jconfig.h, -# NOT via -D switches here. - -# Link-time cc options: -!if $d(DOS) -LDFLAGS= -mm -# memory model option here must match CFLAGS! -!else -LDFLAGS= -# -lai full-screen app -# -lc case-significant link -!endif - -# Put here the object file name for the correct system-dependent memory -# manager file. -# For DOS, we recommend jmemdos.c and jmemdosa.asm. -# For OS/2, we recommend jmemnobs.c (flat memory!) -# SYSDEPMEMLIB must list the same files with "+" signs for the librarian. -!if $d(DOS) -SYSDEPMEM= jmemdos.obj jmemdosa.obj -SYSDEPMEMLIB= +jmemdos.obj +jmemdosa.obj -!else -SYSDEPMEM= jmemnobs.obj -SYSDEPMEMLIB= +jmemnobs.obj -!endif - -# End of configurable options. - - -# source files: JPEG library proper -LIBSOURCES= jaricom.c jcapimin.c jcapistd.c jcarith.c jccoefct.c jccolor.c \ - jcdctmgr.c jchuff.c jcinit.c jcmainct.c jcmarker.c jcmaster.c \ - jcomapi.c jcparam.c jcprepct.c jcsample.c jctrans.c jdapimin.c \ - jdapistd.c jdarith.c jdatadst.c jdatasrc.c jdcoefct.c jdcolor.c \ - jddctmgr.c jdhuff.c jdinput.c jdmainct.c jdmarker.c jdmaster.c \ - jdmerge.c jdpostct.c jdsample.c jdtrans.c jerror.c jfdctflt.c \ - jfdctfst.c jfdctint.c jidctflt.c jidctfst.c jidctint.c jquant1.c \ - jquant2.c jutils.c jmemmgr.c -# memmgr back ends: compile only one of these into a working library -SYSDEPSOURCES= jmemansi.c jmemname.c jmemnobs.c jmemdos.c jmemmac.c -# source files: cjpeg/djpeg/jpegtran applications, also rdjpgcom/wrjpgcom -APPSOURCES= cjpeg.c djpeg.c jpegtran.c rdjpgcom.c wrjpgcom.c cdjpeg.c \ - rdcolmap.c rdswitch.c transupp.c rdppm.c wrppm.c rdgif.c wrgif.c \ - rdtarga.c wrtarga.c rdbmp.c wrbmp.c rdrle.c wrrle.c -SOURCES= $(LIBSOURCES) $(SYSDEPSOURCES) $(APPSOURCES) -# files included by source files -INCLUDES= jdct.h jerror.h jinclude.h jmemsys.h jmorecfg.h jpegint.h \ - jpeglib.h jversion.h cdjpeg.h cderror.h transupp.h -# documentation, test, and support files -DOCS= README install.txt usage.txt cjpeg.1 djpeg.1 jpegtran.1 rdjpgcom.1 \ - wrjpgcom.1 wizard.txt example.c libjpeg.txt structure.txt \ - coderules.txt filelist.txt change.log -MKFILES= configure Makefile.in makefile.ansi makefile.unix makefile.bcc \ - makefile.mc6 makefile.dj makefile.wat makefile.vc makejdsw.vc6 \ - makeadsw.vc6 makejdep.vc6 makejdsp.vc6 makejmak.vc6 makecdep.vc6 \ - makecdsp.vc6 makecmak.vc6 makeddep.vc6 makeddsp.vc6 makedmak.vc6 \ - maketdep.vc6 maketdsp.vc6 maketmak.vc6 makerdep.vc6 makerdsp.vc6 \ - makermak.vc6 makewdep.vc6 makewdsp.vc6 makewmak.vc6 makejsln.v10 \ - makeasln.v10 makejvcx.v10 makejfil.v10 makecvcx.v10 makecfil.v10 \ - makedvcx.v10 makedfil.v10 maketvcx.v10 maketfil.v10 makervcx.v10 \ - makerfil.v10 makewvcx.v10 makewfil.v10 makeproj.mac makcjpeg.st \ - makdjpeg.st makljpeg.st maktjpeg.st makefile.manx makefile.sas \ - makefile.mms makefile.vms makvms.opt -CONFIGFILES= jconfig.cfg jconfig.bcc jconfig.mc6 jconfig.dj jconfig.wat \ - jconfig.vc jconfig.mac jconfig.st jconfig.manx jconfig.sas \ - jconfig.vms -CONFIGUREFILES= config.guess config.sub install-sh ltmain.sh depcomp missing -OTHERFILES= jconfig.txt ckconfig.c ansi2knr.c ansi2knr.1 jmemdosa.asm \ - libjpeg.map -TESTFILES= testorig.jpg testimg.ppm testimg.bmp testimg.jpg testprog.jpg \ - testimgp.jpg -DISTFILES= $(DOCS) $(MKFILES) $(CONFIGFILES) $(SOURCES) $(INCLUDES) \ - $(CONFIGUREFILES) $(OTHERFILES) $(TESTFILES) -# library object files common to compression and decompression -COMOBJECTS= jaricom.obj jcomapi.obj jutils.obj jerror.obj jmemmgr.obj $(SYSDEPMEM) -# compression library object files -CLIBOBJECTS= jcapimin.obj jcapistd.obj jcarith.obj jctrans.obj jcparam.obj \ - jdatadst.obj jcinit.obj jcmaster.obj jcmarker.obj jcmainct.obj \ - jcprepct.obj jccoefct.obj jccolor.obj jcsample.obj jchuff.obj \ - jcdctmgr.obj jfdctfst.obj jfdctflt.obj jfdctint.obj -# decompression library object files -DLIBOBJECTS= jdapimin.obj jdapistd.obj jdarith.obj jdtrans.obj jdatasrc.obj \ - jdmaster.obj jdinput.obj jdmarker.obj jdhuff.obj jdmainct.obj \ - jdcoefct.obj jdpostct.obj jddctmgr.obj jidctfst.obj jidctflt.obj \ - jidctint.obj jdsample.obj jdcolor.obj jquant1.obj jquant2.obj \ - jdmerge.obj -# These objectfiles are included in libjpeg.lib -LIBOBJECTS= $(CLIBOBJECTS) $(DLIBOBJECTS) $(COMOBJECTS) -# object files for sample applications (excluding library files) -COBJECTS= cjpeg.obj rdppm.obj rdgif.obj rdtarga.obj rdrle.obj rdbmp.obj \ - rdswitch.obj cdjpeg.obj -DOBJECTS= djpeg.obj wrppm.obj wrgif.obj wrtarga.obj wrrle.obj wrbmp.obj \ - rdcolmap.obj cdjpeg.obj -TROBJECTS= jpegtran.obj rdswitch.obj cdjpeg.obj transupp.obj - - -all: libjpeg.lib cjpeg.exe djpeg.exe jpegtran.exe rdjpgcom.exe wrjpgcom.exe - -libjpeg.lib: $(LIBOBJECTS) - - del libjpeg.lib - tlib libjpeg.lib /E /C @&&| -+jcapimin.obj +jcapistd.obj +jcarith.obj +jctrans.obj +jcparam.obj & -+jdatadst.obj +jcinit.obj +jcmaster.obj +jcmarker.obj +jcmainct.obj & -+jcprepct.obj +jccoefct.obj +jccolor.obj +jcsample.obj +jchuff.obj & -+jcdctmgr.obj +jfdctfst.obj +jfdctflt.obj +jfdctint.obj +jdapimin.obj & -+jdapistd.obj +jdarith.obj +jdtrans.obj +jdatasrc.obj +jdmaster.obj & -+jdinput.obj +jdmarker.obj +jdhuff.obj +jdmainct.obj +jdcoefct.obj & -+jdpostct.obj +jddctmgr.obj +jidctfst.obj +jidctflt.obj +jidctint.obj & -+jdsample.obj +jdcolor.obj +jquant1.obj +jquant2.obj +jdmerge.obj & -+jaricom.obj +jcomapi.obj +jutils.obj +jerror.obj +jmemmgr.obj & -$(SYSDEPMEMLIB) -| - -cjpeg.exe: $(COBJECTS) libjpeg.lib - $(CC) $(LDFLAGS) -ecjpeg.exe $(COBJECTS) libjpeg.lib - -djpeg.exe: $(DOBJECTS) libjpeg.lib - $(CC) $(LDFLAGS) -edjpeg.exe $(DOBJECTS) libjpeg.lib - -jpegtran.exe: $(TROBJECTS) libjpeg.lib - $(CC) $(LDFLAGS) -ejpegtran.exe $(TROBJECTS) libjpeg.lib - -rdjpgcom.exe: rdjpgcom.c -!if $d(DOS) - $(CC) -ms -O rdjpgcom.c -!else - $(CC) $(CFLAGS) rdjpgcom.c -!endif - -# On DOS, wrjpgcom needs large model so it can malloc a 64K chunk -wrjpgcom.exe: wrjpgcom.c -!if $d(DOS) - $(CC) -ml -O wrjpgcom.c -!else - $(CC) $(CFLAGS) wrjpgcom.c -!endif - -# This "{}" syntax allows Borland Make to "batch" source files. -# In this way, each run of the compiler can build many modules. -.c.obj: - $(CC) $(CFLAGS) -c{ $<} - -jconfig.h: jconfig.txt - echo You must prepare a system-dependent jconfig.h file. - echo Please read the installation directions in install.txt. - exit 1 - -clean: - - del *.obj - - del libjpeg.lib - - del cjpeg.exe - - del djpeg.exe - - del jpegtran.exe - - del rdjpgcom.exe - - del wrjpgcom.exe - - del testout*.* - -test: cjpeg.exe djpeg.exe jpegtran.exe - - del testout*.* - djpeg -dct int -ppm -outfile testout.ppm testorig.jpg - djpeg -dct int -bmp -colors 256 -outfile testout.bmp testorig.jpg - cjpeg -dct int -outfile testout.jpg testimg.ppm - djpeg -dct int -ppm -outfile testoutp.ppm testprog.jpg - cjpeg -dct int -progressive -opt -outfile testoutp.jpg testimg.ppm - jpegtran -outfile testoutt.jpg testprog.jpg -!if $d(DOS) - fc /b testimg.ppm testout.ppm - fc /b testimg.bmp testout.bmp - fc /b testimg.jpg testout.jpg - fc /b testimg.ppm testoutp.ppm - fc /b testimgp.jpg testoutp.jpg - fc /b testorig.jpg testoutt.jpg -!else - echo n > n.tmp - comp testimg.ppm testout.ppm < n.tmp - comp testimg.bmp testout.bmp < n.tmp - comp testimg.jpg testout.jpg < n.tmp - comp testimg.ppm testoutp.ppm < n.tmp - comp testimgp.jpg testoutp.jpg < n.tmp - comp testorig.jpg testoutt.jpg < n.tmp - del n.tmp -!endif - - -jaricom.obj: jaricom.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcapimin.obj: jcapimin.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcapistd.obj: jcapistd.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcarith.obj: jcarith.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jccoefct.obj: jccoefct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jccolor.obj: jccolor.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcdctmgr.obj: jcdctmgr.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h -jchuff.obj: jchuff.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcinit.obj: jcinit.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcmainct.obj: jcmainct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcmarker.obj: jcmarker.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcmaster.obj: jcmaster.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcomapi.obj: jcomapi.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcparam.obj: jcparam.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcprepct.obj: jcprepct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcsample.obj: jcsample.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jctrans.obj: jctrans.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdapimin.obj: jdapimin.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdapistd.obj: jdapistd.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdarith.obj: jdarith.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdatadst.obj: jdatadst.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h -jdatasrc.obj: jdatasrc.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h -jdcoefct.obj: jdcoefct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdcolor.obj: jdcolor.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jddctmgr.obj: jddctmgr.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h -jdhuff.obj: jdhuff.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdinput.obj: jdinput.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdmainct.obj: jdmainct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdmarker.obj: jdmarker.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdmaster.obj: jdmaster.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdmerge.obj: jdmerge.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdpostct.obj: jdpostct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdsample.obj: jdsample.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdtrans.obj: jdtrans.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jerror.obj: jerror.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jversion.h jerror.h -jfdctflt.obj: jfdctflt.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h -jfdctfst.obj: jfdctfst.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h -jfdctint.obj: jfdctint.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h -jidctflt.obj: jidctflt.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h -jidctfst.obj: jidctfst.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h -jidctint.obj: jidctint.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h -jquant1.obj: jquant1.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jquant2.obj: jquant2.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jutils.obj: jutils.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jmemmgr.obj: jmemmgr.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h -jmemansi.obj: jmemansi.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h -jmemname.obj: jmemname.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h -jmemnobs.obj: jmemnobs.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h -jmemdos.obj: jmemdos.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h -jmemmac.obj: jmemmac.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h -cjpeg.obj: cjpeg.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h jversion.h -djpeg.obj: djpeg.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h jversion.h -jpegtran.obj: jpegtran.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h transupp.h jversion.h -rdjpgcom.obj: rdjpgcom.c jinclude.h jconfig.h -wrjpgcom.obj: wrjpgcom.c jinclude.h jconfig.h -cdjpeg.obj: cdjpeg.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -rdcolmap.obj: rdcolmap.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -rdswitch.obj: rdswitch.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -transupp.obj: transupp.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h transupp.h -rdppm.obj: rdppm.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -wrppm.obj: wrppm.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -rdgif.obj: rdgif.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -wrgif.obj: wrgif.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -rdtarga.obj: rdtarga.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -wrtarga.obj: wrtarga.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -rdbmp.obj: rdbmp.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -wrbmp.obj: wrbmp.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -rdrle.obj: rdrle.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -wrrle.obj: wrrle.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -jmemdosa.obj: jmemdosa.asm - tasm /mx jmemdosa.asm diff --git a/jpg/makefile.dj b/jpg/makefile.dj deleted file mode 100644 index 37b6ee7..0000000 --- a/jpg/makefile.dj +++ /dev/null @@ -1,227 +0,0 @@ -# Makefile for Independent JPEG Group's software - -# This makefile is for DJGPP (Delorie's GNU C port on MS-DOS), v2.0 or later. -# Thanks to Frank J. Donahoe for this version. - -# Read installation instructions before saying "make" !! - -# The name of your C compiler: -CC= gcc - -# You may need to adjust these cc options: -CFLAGS= -O2 -Wall -I. -# Generally, we recommend defining any configuration symbols in jconfig.h, -# NOT via -D switches here. - -# Link-time cc options: -LDFLAGS= -s - -# To link any special libraries, add the necessary -l commands here. -LDLIBS= - -# Put here the object file name for the correct system-dependent memory -# manager file. For DJGPP this is usually jmemnobs.o, but you could -# use jmemname.o if you want to use named temp files instead of swap space. -SYSDEPMEM= jmemnobs.o - -# miscellaneous OS-dependent stuff -# linker -LN= $(CC) -# file deletion command -RM= del -# library (.a) file creation command -AR= ar rc -# second step in .a creation (use "touch" if not needed) -AR2= ranlib - -# End of configurable options. - - -# source files: JPEG library proper -LIBSOURCES= jaricom.c jcapimin.c jcapistd.c jcarith.c jccoefct.c jccolor.c \ - jcdctmgr.c jchuff.c jcinit.c jcmainct.c jcmarker.c jcmaster.c \ - jcomapi.c jcparam.c jcprepct.c jcsample.c jctrans.c jdapimin.c \ - jdapistd.c jdarith.c jdatadst.c jdatasrc.c jdcoefct.c jdcolor.c \ - jddctmgr.c jdhuff.c jdinput.c jdmainct.c jdmarker.c jdmaster.c \ - jdmerge.c jdpostct.c jdsample.c jdtrans.c jerror.c jfdctflt.c \ - jfdctfst.c jfdctint.c jidctflt.c jidctfst.c jidctint.c jquant1.c \ - jquant2.c jutils.c jmemmgr.c -# memmgr back ends: compile only one of these into a working library -SYSDEPSOURCES= jmemansi.c jmemname.c jmemnobs.c jmemdos.c jmemmac.c -# source files: cjpeg/djpeg/jpegtran applications, also rdjpgcom/wrjpgcom -APPSOURCES= cjpeg.c djpeg.c jpegtran.c rdjpgcom.c wrjpgcom.c cdjpeg.c \ - rdcolmap.c rdswitch.c transupp.c rdppm.c wrppm.c rdgif.c wrgif.c \ - rdtarga.c wrtarga.c rdbmp.c wrbmp.c rdrle.c wrrle.c -SOURCES= $(LIBSOURCES) $(SYSDEPSOURCES) $(APPSOURCES) -# files included by source files -INCLUDES= jdct.h jerror.h jinclude.h jmemsys.h jmorecfg.h jpegint.h \ - jpeglib.h jversion.h cdjpeg.h cderror.h transupp.h -# documentation, test, and support files -DOCS= README install.txt usage.txt cjpeg.1 djpeg.1 jpegtran.1 rdjpgcom.1 \ - wrjpgcom.1 wizard.txt example.c libjpeg.txt structure.txt \ - coderules.txt filelist.txt change.log -MKFILES= configure Makefile.in makefile.ansi makefile.unix makefile.bcc \ - makefile.mc6 makefile.dj makefile.wat makefile.vc makejdsw.vc6 \ - makeadsw.vc6 makejdep.vc6 makejdsp.vc6 makejmak.vc6 makecdep.vc6 \ - makecdsp.vc6 makecmak.vc6 makeddep.vc6 makeddsp.vc6 makedmak.vc6 \ - maketdep.vc6 maketdsp.vc6 maketmak.vc6 makerdep.vc6 makerdsp.vc6 \ - makermak.vc6 makewdep.vc6 makewdsp.vc6 makewmak.vc6 makejsln.v10 \ - makeasln.v10 makejvcx.v10 makejfil.v10 makecvcx.v10 makecfil.v10 \ - makedvcx.v10 makedfil.v10 maketvcx.v10 maketfil.v10 makervcx.v10 \ - makerfil.v10 makewvcx.v10 makewfil.v10 makeproj.mac makcjpeg.st \ - makdjpeg.st makljpeg.st maktjpeg.st makefile.manx makefile.sas \ - makefile.mms makefile.vms makvms.opt -CONFIGFILES= jconfig.cfg jconfig.bcc jconfig.mc6 jconfig.dj jconfig.wat \ - jconfig.vc jconfig.mac jconfig.st jconfig.manx jconfig.sas \ - jconfig.vms -CONFIGUREFILES= config.guess config.sub install-sh ltmain.sh depcomp missing -OTHERFILES= jconfig.txt ckconfig.c ansi2knr.c ansi2knr.1 jmemdosa.asm \ - libjpeg.map -TESTFILES= testorig.jpg testimg.ppm testimg.bmp testimg.jpg testprog.jpg \ - testimgp.jpg -DISTFILES= $(DOCS) $(MKFILES) $(CONFIGFILES) $(SOURCES) $(INCLUDES) \ - $(CONFIGUREFILES) $(OTHERFILES) $(TESTFILES) -# library object files common to compression and decompression -COMOBJECTS= jaricom.o jcomapi.o jutils.o jerror.o jmemmgr.o $(SYSDEPMEM) -# compression library object files -CLIBOBJECTS= jcapimin.o jcapistd.o jcarith.o jctrans.o jcparam.o \ - jdatadst.o jcinit.o jcmaster.o jcmarker.o jcmainct.o jcprepct.o \ - jccoefct.o jccolor.o jcsample.o jchuff.o jcdctmgr.o jfdctfst.o \ - jfdctflt.o jfdctint.o -# decompression library object files -DLIBOBJECTS= jdapimin.o jdapistd.o jdarith.o jdtrans.o jdatasrc.o \ - jdmaster.o jdinput.o jdmarker.o jdhuff.o jdmainct.o \ - jdcoefct.o jdpostct.o jddctmgr.o jidctfst.o jidctflt.o \ - jidctint.o jdsample.o jdcolor.o jquant1.o jquant2.o jdmerge.o -# These objectfiles are included in libjpeg.a -LIBOBJECTS= $(CLIBOBJECTS) $(DLIBOBJECTS) $(COMOBJECTS) -# object files for sample applications (excluding library files) -COBJECTS= cjpeg.o rdppm.o rdgif.o rdtarga.o rdrle.o rdbmp.o rdswitch.o \ - cdjpeg.o -DOBJECTS= djpeg.o wrppm.o wrgif.o wrtarga.o wrrle.o wrbmp.o rdcolmap.o \ - cdjpeg.o -TROBJECTS= jpegtran.o rdswitch.o cdjpeg.o transupp.o - - -all: libjpeg.a cjpeg.exe djpeg.exe jpegtran.exe rdjpgcom.exe wrjpgcom.exe - -libjpeg.a: $(LIBOBJECTS) - $(RM) libjpeg.a - $(AR) libjpeg.a $(LIBOBJECTS) - $(AR2) libjpeg.a - -cjpeg.exe: $(COBJECTS) libjpeg.a - $(LN) $(LDFLAGS) -o cjpeg.exe $(COBJECTS) libjpeg.a $(LDLIBS) - -djpeg.exe: $(DOBJECTS) libjpeg.a - $(LN) $(LDFLAGS) -o djpeg.exe $(DOBJECTS) libjpeg.a $(LDLIBS) - -jpegtran.exe: $(TROBJECTS) libjpeg.a - $(LN) $(LDFLAGS) -o jpegtran.exe $(TROBJECTS) libjpeg.a $(LDLIBS) - -rdjpgcom.exe: rdjpgcom.o - $(LN) $(LDFLAGS) -o rdjpgcom.exe rdjpgcom.o $(LDLIBS) - -wrjpgcom.exe: wrjpgcom.o - $(LN) $(LDFLAGS) -o wrjpgcom.exe wrjpgcom.o $(LDLIBS) - -jconfig.h: jconfig.txt - echo You must prepare a system-dependent jconfig.h file. - echo Please read the installation directions in install.txt. - exit 1 - -clean: - $(RM) *.o - $(RM) cjpeg.exe - $(RM) djpeg.exe - $(RM) jpegtran.exe - $(RM) rdjpgcom.exe - $(RM) wrjpgcom.exe - $(RM) libjpeg.a - $(RM) testout*.* - -test: cjpeg.exe djpeg.exe jpegtran.exe - $(RM) testout*.* - ./djpeg -dct int -ppm -outfile testout.ppm testorig.jpg - ./djpeg -dct int -bmp -colors 256 -outfile testout.bmp testorig.jpg - ./cjpeg -dct int -outfile testout.jpg testimg.ppm - ./djpeg -dct int -ppm -outfile testoutp.ppm testprog.jpg - ./cjpeg -dct int -progressive -opt -outfile testoutp.jpg testimg.ppm - ./jpegtran -outfile testoutt.jpg testprog.jpg - fc /b testimg.ppm testout.ppm - fc /b testimg.bmp testout.bmp - fc /b testimg.jpg testout.jpg - fc /b testimg.ppm testoutp.ppm - fc /b testimgp.jpg testoutp.jpg - fc /b testorig.jpg testoutt.jpg - - -jaricom.o: jaricom.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcapimin.o: jcapimin.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcapistd.o: jcapistd.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcarith.o: jcarith.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jccoefct.o: jccoefct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jccolor.o: jccolor.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcdctmgr.o: jcdctmgr.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h -jchuff.o: jchuff.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcinit.o: jcinit.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcmainct.o: jcmainct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcmarker.o: jcmarker.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcmaster.o: jcmaster.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcomapi.o: jcomapi.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcparam.o: jcparam.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcprepct.o: jcprepct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcsample.o: jcsample.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jctrans.o: jctrans.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdapimin.o: jdapimin.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdapistd.o: jdapistd.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdarith.o: jdarith.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdatadst.o: jdatadst.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h -jdatasrc.o: jdatasrc.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h -jdcoefct.o: jdcoefct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdcolor.o: jdcolor.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jddctmgr.o: jddctmgr.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h -jdhuff.o: jdhuff.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdinput.o: jdinput.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdmainct.o: jdmainct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdmarker.o: jdmarker.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdmaster.o: jdmaster.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdmerge.o: jdmerge.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdpostct.o: jdpostct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdsample.o: jdsample.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdtrans.o: jdtrans.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jerror.o: jerror.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jversion.h jerror.h -jfdctflt.o: jfdctflt.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h -jfdctfst.o: jfdctfst.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h -jfdctint.o: jfdctint.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h -jidctflt.o: jidctflt.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h -jidctfst.o: jidctfst.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h -jidctint.o: jidctint.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h -jquant1.o: jquant1.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jquant2.o: jquant2.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jutils.o: jutils.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jmemmgr.o: jmemmgr.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h -jmemansi.o: jmemansi.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h -jmemname.o: jmemname.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h -jmemnobs.o: jmemnobs.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h -jmemdos.o: jmemdos.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h -jmemmac.o: jmemmac.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h -cjpeg.o: cjpeg.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h jversion.h -djpeg.o: djpeg.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h jversion.h -jpegtran.o: jpegtran.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h transupp.h jversion.h -rdjpgcom.o: rdjpgcom.c jinclude.h jconfig.h -wrjpgcom.o: wrjpgcom.c jinclude.h jconfig.h -cdjpeg.o: cdjpeg.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -rdcolmap.o: rdcolmap.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -rdswitch.o: rdswitch.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -transupp.o: transupp.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h transupp.h -rdppm.o: rdppm.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -wrppm.o: wrppm.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -rdgif.o: rdgif.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -wrgif.o: wrgif.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -rdtarga.o: rdtarga.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -wrtarga.o: wrtarga.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -rdbmp.o: rdbmp.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -wrbmp.o: wrbmp.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -rdrle.o: rdrle.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -wrrle.o: wrrle.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h diff --git a/jpg/makefile.manx b/jpg/makefile.manx deleted file mode 100644 index 471f408..0000000 --- a/jpg/makefile.manx +++ /dev/null @@ -1,221 +0,0 @@ -# Makefile for Independent JPEG Group's software - -# This makefile is for Amiga systems using Manx Aztec C ver 5.x. -# Thanks to D.J. James (djjames@cup.portal.com) for this version. - -# Read installation instructions before saying "make" !! - -# The name of your C compiler: -CC= cc - -# You may need to adjust these cc options: -# Uncomment for generic 68000 code (will work on any Amiga) -ARCHFLAGS= -sn - -# Uncomment for 68020/68030 code (faster, but won't run on 68000 CPU) -#ARCHFLAGS= -c2 - -CFLAGS= -MC -MD $(ARCHFLAGS) -spfam -r4 - -# Link-time cc options: -LDFLAGS= -g - -# To link any special libraries, add the necessary -l commands here. -LDLIBS= -lml -lcl - -# Put here the object file name for the correct system-dependent memory -# manager file. For Amiga we recommend jmemname.o. -SYSDEPMEM= jmemname.o - -# miscellaneous OS-dependent stuff -# linker -LN= ln -# file deletion command -RM= delete quiet -# library (.lib) file creation command -AR= lb - -# End of configurable options. - - -# source files: JPEG library proper -LIBSOURCES= jaricom.c jcapimin.c jcapistd.c jcarith.c jccoefct.c jccolor.c \ - jcdctmgr.c jchuff.c jcinit.c jcmainct.c jcmarker.c jcmaster.c \ - jcomapi.c jcparam.c jcprepct.c jcsample.c jctrans.c jdapimin.c \ - jdapistd.c jdarith.c jdatadst.c jdatasrc.c jdcoefct.c jdcolor.c \ - jddctmgr.c jdhuff.c jdinput.c jdmainct.c jdmarker.c jdmaster.c \ - jdmerge.c jdpostct.c jdsample.c jdtrans.c jerror.c jfdctflt.c \ - jfdctfst.c jfdctint.c jidctflt.c jidctfst.c jidctint.c jquant1.c \ - jquant2.c jutils.c jmemmgr.c -# memmgr back ends: compile only one of these into a working library -SYSDEPSOURCES= jmemansi.c jmemname.c jmemnobs.c jmemdos.c jmemmac.c -# source files: cjpeg/djpeg/jpegtran applications, also rdjpgcom/wrjpgcom -APPSOURCES= cjpeg.c djpeg.c jpegtran.c rdjpgcom.c wrjpgcom.c cdjpeg.c \ - rdcolmap.c rdswitch.c transupp.c rdppm.c wrppm.c rdgif.c wrgif.c \ - rdtarga.c wrtarga.c rdbmp.c wrbmp.c rdrle.c wrrle.c -SOURCES= $(LIBSOURCES) $(SYSDEPSOURCES) $(APPSOURCES) -# files included by source files -INCLUDES= jdct.h jerror.h jinclude.h jmemsys.h jmorecfg.h jpegint.h \ - jpeglib.h jversion.h cdjpeg.h cderror.h transupp.h -# documentation, test, and support files -DOCS= README install.txt usage.txt cjpeg.1 djpeg.1 jpegtran.1 rdjpgcom.1 \ - wrjpgcom.1 wizard.txt example.c libjpeg.txt structure.txt \ - coderules.txt filelist.txt change.log -MKFILES= configure Makefile.in makefile.ansi makefile.unix makefile.bcc \ - makefile.mc6 makefile.dj makefile.wat makefile.vc makejdsw.vc6 \ - makeadsw.vc6 makejdep.vc6 makejdsp.vc6 makejmak.vc6 makecdep.vc6 \ - makecdsp.vc6 makecmak.vc6 makeddep.vc6 makeddsp.vc6 makedmak.vc6 \ - maketdep.vc6 maketdsp.vc6 maketmak.vc6 makerdep.vc6 makerdsp.vc6 \ - makermak.vc6 makewdep.vc6 makewdsp.vc6 makewmak.vc6 makejsln.v10 \ - makeasln.v10 makejvcx.v10 makejfil.v10 makecvcx.v10 makecfil.v10 \ - makedvcx.v10 makedfil.v10 maketvcx.v10 maketfil.v10 makervcx.v10 \ - makerfil.v10 makewvcx.v10 makewfil.v10 makeproj.mac makcjpeg.st \ - makdjpeg.st makljpeg.st maktjpeg.st makefile.manx makefile.sas \ - makefile.mms makefile.vms makvms.opt -CONFIGFILES= jconfig.cfg jconfig.bcc jconfig.mc6 jconfig.dj jconfig.wat \ - jconfig.vc jconfig.mac jconfig.st jconfig.manx jconfig.sas \ - jconfig.vms -CONFIGUREFILES= config.guess config.sub install-sh ltmain.sh depcomp missing -OTHERFILES= jconfig.txt ckconfig.c ansi2knr.c ansi2knr.1 jmemdosa.asm \ - libjpeg.map -TESTFILES= testorig.jpg testimg.ppm testimg.bmp testimg.jpg testprog.jpg \ - testimgp.jpg -DISTFILES= $(DOCS) $(MKFILES) $(CONFIGFILES) $(SOURCES) $(INCLUDES) \ - $(CONFIGUREFILES) $(OTHERFILES) $(TESTFILES) -# library object files common to compression and decompression -COMOBJECTS= jaricom.o jcomapi.o jutils.o jerror.o jmemmgr.o $(SYSDEPMEM) -# compression library object files -CLIBOBJECTS= jcapimin.o jcapistd.o jcarith.o jctrans.o jcparam.o \ - jdatadst.o jcinit.o jcmaster.o jcmarker.o jcmainct.o jcprepct.o \ - jccoefct.o jccolor.o jcsample.o jchuff.o jcdctmgr.o jfdctfst.o \ - jfdctflt.o jfdctint.o -# decompression library object files -DLIBOBJECTS= jdapimin.o jdapistd.o jdarith.o jdtrans.o jdatasrc.o \ - jdmaster.o jdinput.o jdmarker.o jdhuff.o jdmainct.o \ - jdcoefct.o jdpostct.o jddctmgr.o jidctfst.o jidctflt.o \ - jidctint.o jdsample.o jdcolor.o jquant1.o jquant2.o jdmerge.o -# These objectfiles are included in libjpeg.lib -LIBOBJECTS= $(CLIBOBJECTS) $(DLIBOBJECTS) $(COMOBJECTS) -# object files for sample applications (excluding library files) -COBJECTS= cjpeg.o rdppm.o rdgif.o rdtarga.o rdrle.o rdbmp.o rdswitch.o \ - cdjpeg.o -DOBJECTS= djpeg.o wrppm.o wrgif.o wrtarga.o wrrle.o wrbmp.o rdcolmap.o \ - cdjpeg.o -TROBJECTS= jpegtran.o rdswitch.o cdjpeg.o transupp.o - - -all: libjpeg.lib cjpeg djpeg jpegtran rdjpgcom wrjpgcom - -libjpeg.lib: $(LIBOBJECTS) - -$(RM) libjpeg.lib - $(AR) libjpeg.lib $(LIBOBJECTS) - -cjpeg: $(COBJECTS) libjpeg.lib - $(LN) $(LDFLAGS) -o cjpeg $(COBJECTS) libjpeg.lib $(LDLIBS) - -djpeg: $(DOBJECTS) libjpeg.lib - $(LN) $(LDFLAGS) -o djpeg $(DOBJECTS) libjpeg.lib $(LDLIBS) - -jpegtran: $(TROBJECTS) libjpeg.lib - $(LN) $(LDFLAGS) -o jpegtran $(TROBJECTS) libjpeg.lib $(LDLIBS) - -rdjpgcom: rdjpgcom.o - $(LN) $(LDFLAGS) -o rdjpgcom rdjpgcom.o $(LDLIBS) - -wrjpgcom: wrjpgcom.o - $(LN) $(LDFLAGS) -o wrjpgcom wrjpgcom.o $(LDLIBS) - -jconfig.h: jconfig.txt - echo You must prepare a system-dependent jconfig.h file. - echo Please read the installation directions in install.txt. - exit 1 - -clean: - -$(RM) *.o cjpeg djpeg jpegtran libjpeg.lib rdjpgcom wrjpgcom - -$(RM) core testout*.* - -test: cjpeg djpeg jpegtran - -$(RM) testout*.* - djpeg -dct int -ppm -outfile testout.ppm testorig.jpg - djpeg -dct int -bmp -colors 256 -outfile testout.bmp testorig.jpg - cjpeg -dct int -outfile testout.jpg testimg.ppm - djpeg -dct int -ppm -outfile testoutp.ppm testprog.jpg - cjpeg -dct int -progressive -opt -outfile testoutp.jpg testimg.ppm - jpegtran -outfile testoutt.jpg testprog.jpg - cmp testimg.ppm testout.ppm - cmp testimg.bmp testout.bmp - cmp testimg.jpg testout.jpg - cmp testimg.ppm testoutp.ppm - cmp testimgp.jpg testoutp.jpg - cmp testorig.jpg testoutt.jpg - - -jaricom.o: jaricom.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcapimin.o: jcapimin.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcapistd.o: jcapistd.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcarith.o: jcarith.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jccoefct.o: jccoefct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jccolor.o: jccolor.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcdctmgr.o: jcdctmgr.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h -jchuff.o: jchuff.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcinit.o: jcinit.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcmainct.o: jcmainct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcmarker.o: jcmarker.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcmaster.o: jcmaster.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcomapi.o: jcomapi.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcparam.o: jcparam.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcprepct.o: jcprepct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcsample.o: jcsample.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jctrans.o: jctrans.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdapimin.o: jdapimin.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdapistd.o: jdapistd.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdarith.o: jdarith.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdatadst.o: jdatadst.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h -jdatasrc.o: jdatasrc.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h -jdcoefct.o: jdcoefct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdcolor.o: jdcolor.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jddctmgr.o: jddctmgr.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h -jdhuff.o: jdhuff.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdinput.o: jdinput.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdmainct.o: jdmainct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdmarker.o: jdmarker.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdmaster.o: jdmaster.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdmerge.o: jdmerge.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdpostct.o: jdpostct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdsample.o: jdsample.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdtrans.o: jdtrans.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jerror.o: jerror.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jversion.h jerror.h -jfdctflt.o: jfdctflt.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h -jfdctfst.o: jfdctfst.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h -jfdctint.o: jfdctint.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h -jidctflt.o: jidctflt.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h -jidctfst.o: jidctfst.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h -jidctint.o: jidctint.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h -jquant1.o: jquant1.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jquant2.o: jquant2.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jutils.o: jutils.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jmemmgr.o: jmemmgr.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h -jmemansi.o: jmemansi.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h -jmemname.o: jmemname.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h -jmemnobs.o: jmemnobs.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h -jmemdos.o: jmemdos.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h -jmemmac.o: jmemmac.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h -cjpeg.o: cjpeg.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h jversion.h -djpeg.o: djpeg.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h jversion.h -jpegtran.o: jpegtran.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h transupp.h jversion.h -rdjpgcom.o: rdjpgcom.c jinclude.h jconfig.h -wrjpgcom.o: wrjpgcom.c jinclude.h jconfig.h -cdjpeg.o: cdjpeg.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -rdcolmap.o: rdcolmap.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -rdswitch.o: rdswitch.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -transupp.o: transupp.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h transupp.h -rdppm.o: rdppm.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -wrppm.o: wrppm.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -rdgif.o: rdgif.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -wrgif.o: wrgif.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -rdtarga.o: rdtarga.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -wrtarga.o: wrtarga.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -rdbmp.o: rdbmp.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -wrbmp.o: wrbmp.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -rdrle.o: rdrle.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -wrrle.o: wrrle.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h diff --git a/jpg/makefile.mc6 b/jpg/makefile.mc6 deleted file mode 100644 index 1ee83be..0000000 --- a/jpg/makefile.mc6 +++ /dev/null @@ -1,256 +0,0 @@ -# Makefile for Independent JPEG Group's software - -# This makefile is for Microsoft C for MS-DOS, version 6.00A and up. -# Use NMAKE, not Microsoft's brain-damaged MAKE. -# Thanks to Alan Wright and Chris Turner of Olivetti Research Ltd. - -# Read installation instructions before saying "nmake" !! - -# You may need to adjust these compiler options: -CFLAGS = -AM -Oecigt -Gs -W3 -# -AM medium memory model (or use -AS for small model, if you remove features) -# -Oecigt -Gs maximum safe optimisation (-Ol has bugs in MSC 6.00A) -# -W3 warning level 3 -# You might also want to add -G2 if you have an 80286, etc. -# Generally, we recommend defining any configuration symbols in jconfig.h, -# NOT via -D switches here. - -# Jan-Herman Buining suggests the following switches for MS C 8.0 and a 486: -# CFLAGS = /AM /f- /FPi87 /G3 /Gs /Gy /Ob1 /Oc /Oe /Og /Oi /Ol /On /Oo /Ot \ -# /OV4 /W3 -# except for jquant1.c, which must be compiled with /Oo- to avoid a compiler -# crash. - -# Ingar Steinsland suggests the following switches when building -# a 16-bit Windows DLL: -# CFLAGS = -ALw -Gsw -Zpe -W3 -O2 -Zi -Zd - -# Put here the object file name for the correct system-dependent memory -# manager file. For DOS, we recommend jmemdos.c and jmemdosa.asm. -# (But not for Windows; see install.txt if you use this makefile for Windows.) -SYSDEPMEM= jmemdos.obj jmemdosa.obj -# SYSDEPMEMLIB must list the same files with "+" signs for the librarian. -SYSDEPMEMLIB= +jmemdos.obj +jmemdosa.obj - -# End of configurable options. - - -# source files: JPEG library proper -LIBSOURCES= jaricom.c jcapimin.c jcapistd.c jcarith.c jccoefct.c jccolor.c \ - jcdctmgr.c jchuff.c jcinit.c jcmainct.c jcmarker.c jcmaster.c \ - jcomapi.c jcparam.c jcprepct.c jcsample.c jctrans.c jdapimin.c \ - jdapistd.c jdarith.c jdatadst.c jdatasrc.c jdcoefct.c jdcolor.c \ - jddctmgr.c jdhuff.c jdinput.c jdmainct.c jdmarker.c jdmaster.c \ - jdmerge.c jdpostct.c jdsample.c jdtrans.c jerror.c jfdctflt.c \ - jfdctfst.c jfdctint.c jidctflt.c jidctfst.c jidctint.c jquant1.c \ - jquant2.c jutils.c jmemmgr.c -# memmgr back ends: compile only one of these into a working library -SYSDEPSOURCES= jmemansi.c jmemname.c jmemnobs.c jmemdos.c jmemmac.c -# source files: cjpeg/djpeg/jpegtran applications, also rdjpgcom/wrjpgcom -APPSOURCES= cjpeg.c djpeg.c jpegtran.c rdjpgcom.c wrjpgcom.c cdjpeg.c \ - rdcolmap.c rdswitch.c transupp.c rdppm.c wrppm.c rdgif.c wrgif.c \ - rdtarga.c wrtarga.c rdbmp.c wrbmp.c rdrle.c wrrle.c -SOURCES= $(LIBSOURCES) $(SYSDEPSOURCES) $(APPSOURCES) -# files included by source files -INCLUDES= jdct.h jerror.h jinclude.h jmemsys.h jmorecfg.h jpegint.h \ - jpeglib.h jversion.h cdjpeg.h cderror.h transupp.h -# documentation, test, and support files -DOCS= README install.txt usage.txt cjpeg.1 djpeg.1 jpegtran.1 rdjpgcom.1 \ - wrjpgcom.1 wizard.txt example.c libjpeg.txt structure.txt \ - coderules.txt filelist.txt change.log -MKFILES= configure Makefile.in makefile.ansi makefile.unix makefile.bcc \ - makefile.mc6 makefile.dj makefile.wat makefile.vc makejdsw.vc6 \ - makeadsw.vc6 makejdep.vc6 makejdsp.vc6 makejmak.vc6 makecdep.vc6 \ - makecdsp.vc6 makecmak.vc6 makeddep.vc6 makeddsp.vc6 makedmak.vc6 \ - maketdep.vc6 maketdsp.vc6 maketmak.vc6 makerdep.vc6 makerdsp.vc6 \ - makermak.vc6 makewdep.vc6 makewdsp.vc6 makewmak.vc6 makejsln.v10 \ - makeasln.v10 makejvcx.v10 makejfil.v10 makecvcx.v10 makecfil.v10 \ - makedvcx.v10 makedfil.v10 maketvcx.v10 maketfil.v10 makervcx.v10 \ - makerfil.v10 makewvcx.v10 makewfil.v10 makeproj.mac makcjpeg.st \ - makdjpeg.st makljpeg.st maktjpeg.st makefile.manx makefile.sas \ - makefile.mms makefile.vms makvms.opt -CONFIGFILES= jconfig.cfg jconfig.bcc jconfig.mc6 jconfig.dj jconfig.wat \ - jconfig.vc jconfig.mac jconfig.st jconfig.manx jconfig.sas \ - jconfig.vms -CONFIGUREFILES= config.guess config.sub install-sh ltmain.sh depcomp missing -OTHERFILES= jconfig.txt ckconfig.c ansi2knr.c ansi2knr.1 jmemdosa.asm \ - libjpeg.map -TESTFILES= testorig.jpg testimg.ppm testimg.bmp testimg.jpg testprog.jpg \ - testimgp.jpg -DISTFILES= $(DOCS) $(MKFILES) $(CONFIGFILES) $(SOURCES) $(INCLUDES) \ - $(CONFIGUREFILES) $(OTHERFILES) $(TESTFILES) -# library object files common to compression and decompression -COMOBJECTS= jaricom.obj jcomapi.obj jutils.obj jerror.obj jmemmgr.obj $(SYSDEPMEM) -# compression library object files -CLIBOBJECTS= jcapimin.obj jcapistd.obj jcarith.obj jctrans.obj jcparam.obj \ - jdatadst.obj jcinit.obj jcmaster.obj jcmarker.obj jcmainct.obj \ - jcprepct.obj jccoefct.obj jccolor.obj jcsample.obj jchuff.obj \ - jcdctmgr.obj jfdctfst.obj jfdctflt.obj jfdctint.obj -# decompression library object files -DLIBOBJECTS= jdapimin.obj jdapistd.obj jdarith.obj jdtrans.obj jdatasrc.obj \ - jdmaster.obj jdinput.obj jdmarker.obj jdhuff.obj jdmainct.obj \ - jdcoefct.obj jdpostct.obj jddctmgr.obj jidctfst.obj jidctflt.obj \ - jidctint.obj jdsample.obj jdcolor.obj jquant1.obj jquant2.obj \ - jdmerge.obj -# These objectfiles are included in libjpeg.lib -LIBOBJECTS= $(CLIBOBJECTS) $(DLIBOBJECTS) $(COMOBJECTS) -# object files for sample applications (excluding library files) -COBJECTS= cjpeg.obj rdppm.obj rdgif.obj rdtarga.obj rdrle.obj rdbmp.obj \ - rdswitch.obj cdjpeg.obj -DOBJECTS= djpeg.obj wrppm.obj wrgif.obj wrtarga.obj wrrle.obj wrbmp.obj \ - rdcolmap.obj cdjpeg.obj -TROBJECTS= jpegtran.obj rdswitch.obj cdjpeg.obj transupp.obj - -# need linker response file because file list > 128 chars -RFILE = libjpeg.ans - - -all: libjpeg.lib cjpeg.exe djpeg.exe jpegtran.exe rdjpgcom.exe wrjpgcom.exe - -libjpeg.lib: $(LIBOBJECTS) $(RFILE) - del libjpeg.lib - lib @$(RFILE) - -# linker response file for building libjpeg.lib -$(RFILE) : makefile - del $(RFILE) - echo libjpeg.lib >$(RFILE) -# silly want-to-create-it prompt: - echo y >>$(RFILE) - echo +jcapimin.obj +jcapistd.obj +jcarith.obj +jctrans.obj & >>$(RFILE) - echo +jcparam.obj +jdatadst.obj +jcinit.obj +jcmaster.obj & >>$(RFILE) - echo +jcmarker.obj +jcmainct.obj +jcprepct.obj & >>$(RFILE) - echo +jccoefct.obj +jccolor.obj +jcsample.obj +jchuff.obj & >>$(RFILE) - echo +jcdctmgr.obj +jfdctfst.obj +jfdctflt.obj & >>$(RFILE) - echo +jfdctint.obj +jdapimin.obj +jdapistd.obj & >>$(RFILE) - echo +jdarith.obj +jdtrans.obj +jdatasrc.obj +jdmaster.obj & >>$(RFILE) - echo +jdinput.obj +jdmarker.obj +jdhuff.obj +jdmainct.obj & >>$(RFILE) - echo +jdcoefct.obj +jdpostct.obj +jddctmgr.obj & >>$(RFILE) - echo +jidctfst.obj +jidctflt.obj +jidctint.obj & >>$(RFILE) - echo +jdsample.obj +jdcolor.obj +jquant1.obj & >>$(RFILE) - echo +jquant2.obj +jdmerge.obj +jaricom.obj +jcomapi.obj & >>$(RFILE) - echo +jutils.obj +jerror.obj +jmemmgr.obj & >>$(RFILE) - echo $(SYSDEPMEMLIB) ; >>$(RFILE) - -cjpeg.exe: $(COBJECTS) libjpeg.lib - echo $(COBJECTS) >cjpeg.lst - link /STACK:4096 /EXEPACK @cjpeg.lst, cjpeg.exe, , libjpeg.lib, ; - del cjpeg.lst - -djpeg.exe: $(DOBJECTS) libjpeg.lib - echo $(DOBJECTS) >djpeg.lst - link /STACK:4096 /EXEPACK @djpeg.lst, djpeg.exe, , libjpeg.lib, ; - del djpeg.lst - -jpegtran.exe: $(TROBJECTS) libjpeg.lib - link /STACK:4096 /EXEPACK $(TROBJECTS), jpegtran.exe, , libjpeg.lib, ; - -rdjpgcom.exe: rdjpgcom.c - $(CC) -AS -O -W3 rdjpgcom.c - -# wrjpgcom needs large model so it can malloc a 64K chunk -wrjpgcom.exe: wrjpgcom.c - $(CC) -AL -O -W3 wrjpgcom.c - -jconfig.h: jconfig.txt - echo You must prepare a system-dependent jconfig.h file. - echo Please read the installation directions in install.txt. - exit 1 - -clean: - del *.obj - del libjpeg.lib - del cjpeg.exe - del djpeg.exe - del jpegtran.exe - del rdjpgcom.exe - del wrjpgcom.exe - del testout*.* - -test: cjpeg.exe djpeg.exe jpegtran.exe - del testout*.* - djpeg -dct int -ppm -outfile testout.ppm testorig.jpg - djpeg -dct int -bmp -colors 256 -outfile testout.bmp testorig.jpg - cjpeg -dct int -outfile testout.jpg testimg.ppm - djpeg -dct int -ppm -outfile testoutp.ppm testprog.jpg - cjpeg -dct int -progressive -opt -outfile testoutp.jpg testimg.ppm - jpegtran -outfile testoutt.jpg testprog.jpg - fc /b testimg.ppm testout.ppm - fc /b testimg.bmp testout.bmp - fc /b testimg.jpg testout.jpg - fc /b testimg.ppm testoutp.ppm - fc /b testimgp.jpg testoutp.jpg - fc /b testorig.jpg testoutt.jpg - - -jaricom.obj: jaricom.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcapimin.obj: jcapimin.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcapistd.obj: jcapistd.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcarith.obj: jcarith.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jccoefct.obj: jccoefct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jccolor.obj: jccolor.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcdctmgr.obj: jcdctmgr.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h -jchuff.obj: jchuff.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcinit.obj: jcinit.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcmainct.obj: jcmainct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcmarker.obj: jcmarker.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcmaster.obj: jcmaster.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcomapi.obj: jcomapi.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcparam.obj: jcparam.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcprepct.obj: jcprepct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcsample.obj: jcsample.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jctrans.obj: jctrans.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdapimin.obj: jdapimin.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdapistd.obj: jdapistd.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdarith.obj: jdarith.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdatadst.obj: jdatadst.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h -jdatasrc.obj: jdatasrc.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h -jdcoefct.obj: jdcoefct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdcolor.obj: jdcolor.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jddctmgr.obj: jddctmgr.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h -jdhuff.obj: jdhuff.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdinput.obj: jdinput.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdmainct.obj: jdmainct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdmarker.obj: jdmarker.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdmaster.obj: jdmaster.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdmerge.obj: jdmerge.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdpostct.obj: jdpostct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdsample.obj: jdsample.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdtrans.obj: jdtrans.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jerror.obj: jerror.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jversion.h jerror.h -jfdctflt.obj: jfdctflt.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h -jfdctfst.obj: jfdctfst.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h -jfdctint.obj: jfdctint.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h -jidctflt.obj: jidctflt.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h -jidctfst.obj: jidctfst.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h -jidctint.obj: jidctint.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h -jquant1.obj: jquant1.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jquant2.obj: jquant2.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jutils.obj: jutils.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jmemmgr.obj: jmemmgr.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h -jmemansi.obj: jmemansi.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h -jmemname.obj: jmemname.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h -jmemnobs.obj: jmemnobs.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h -jmemdos.obj: jmemdos.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h -jmemmac.obj: jmemmac.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h -cjpeg.obj: cjpeg.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h jversion.h -djpeg.obj: djpeg.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h jversion.h -jpegtran.obj: jpegtran.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h transupp.h jversion.h -rdjpgcom.obj: rdjpgcom.c jinclude.h jconfig.h -wrjpgcom.obj: wrjpgcom.c jinclude.h jconfig.h -cdjpeg.obj: cdjpeg.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -rdcolmap.obj: rdcolmap.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -rdswitch.obj: rdswitch.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -transupp.obj: transupp.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h transupp.h -rdppm.obj: rdppm.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -wrppm.obj: wrppm.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -rdgif.obj: rdgif.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -wrgif.obj: wrgif.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -rdtarga.obj: rdtarga.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -wrtarga.obj: wrtarga.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -rdbmp.obj: rdbmp.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -wrbmp.obj: wrbmp.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -rdrle.obj: rdrle.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -wrrle.obj: wrrle.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -jmemdosa.obj : jmemdosa.asm - masm /mx $*; diff --git a/jpg/makefile.mms b/jpg/makefile.mms deleted file mode 100644 index 6019dfa..0000000 --- a/jpg/makefile.mms +++ /dev/null @@ -1,225 +0,0 @@ -# Makefile for Independent JPEG Group's software - -# This makefile is for use with MMS on Digital VMS systems. -# Thanks to Rick Dyson (dyson@iowasp.physics.uiowa.edu) -# and Tim Bell (tbell@netcom.com) for their help. - -# Read installation instructions before saying "MMS" !! - -# You may need to adjust these cc options: -CFLAGS= $(CFLAGS) /NoDebug /Optimize -# Generally, we recommend defining any configuration symbols in jconfig.h, -# NOT via /Define switches here. -.ifdef ALPHA -OPT= -.else -OPT= ,Sys$Disk:[]MAKVMS.OPT/Option -.endif - -# Put here the object file name for the correct system-dependent memory -# manager file. For Unix this is usually jmemnobs.o, but you may want -# to use jmemansi.o or jmemname.o if you have limited swap space. -SYSDEPMEM= jmemnobs.obj - -# End of configurable options. - - -# source files: JPEG library proper -LIBSOURCES= jaricom.c jcapimin.c jcapistd.c jcarith.c jccoefct.c jccolor.c \ - jcdctmgr.c jchuff.c jcinit.c jcmainct.c jcmarker.c jcmaster.c \ - jcomapi.c jcparam.c jcprepct.c jcsample.c jctrans.c jdapimin.c \ - jdapistd.c jdarith.c jdatadst.c jdatasrc.c jdcoefct.c jdcolor.c \ - jddctmgr.c jdhuff.c jdinput.c jdmainct.c jdmarker.c jdmaster.c \ - jdmerge.c jdpostct.c jdsample.c jdtrans.c jerror.c jfdctflt.c \ - jfdctfst.c jfdctint.c jidctflt.c jidctfst.c jidctint.c jquant1.c \ - jquant2.c jutils.c jmemmgr.c -# memmgr back ends: compile only one of these into a working library -SYSDEPSOURCES= jmemansi.c jmemname.c jmemnobs.c jmemdos.c jmemmac.c -# source files: cjpeg/djpeg/jpegtran applications, also rdjpgcom/wrjpgcom -APPSOURCES= cjpeg.c djpeg.c jpegtran.c rdjpgcom.c wrjpgcom.c cdjpeg.c \ - rdcolmap.c rdswitch.c transupp.c rdppm.c wrppm.c rdgif.c wrgif.c \ - rdtarga.c wrtarga.c rdbmp.c wrbmp.c rdrle.c wrrle.c -SOURCES= $(LIBSOURCES) $(SYSDEPSOURCES) $(APPSOURCES) -# files included by source files -INCLUDES= jdct.h jerror.h jinclude.h jmemsys.h jmorecfg.h jpegint.h \ - jpeglib.h jversion.h cdjpeg.h cderror.h transupp.h -# documentation, test, and support files -DOCS= README install.txt usage.txt cjpeg.1 djpeg.1 jpegtran.1 rdjpgcom.1 \ - wrjpgcom.1 wizard.txt example.c libjpeg.txt structure.txt \ - coderules.txt filelist.txt change.log -MKFILES= configure Makefile.in makefile.ansi makefile.unix makefile.bcc \ - makefile.mc6 makefile.dj makefile.wat makefile.vc makejdsw.vc6 \ - makeadsw.vc6 makejdep.vc6 makejdsp.vc6 makejmak.vc6 makecdep.vc6 \ - makecdsp.vc6 makecmak.vc6 makeddep.vc6 makeddsp.vc6 makedmak.vc6 \ - maketdep.vc6 maketdsp.vc6 maketmak.vc6 makerdep.vc6 makerdsp.vc6 \ - makermak.vc6 makewdep.vc6 makewdsp.vc6 makewmak.vc6 makejsln.v10 \ - makeasln.v10 makejvcx.v10 makejfil.v10 makecvcx.v10 makecfil.v10 \ - makedvcx.v10 makedfil.v10 maketvcx.v10 maketfil.v10 makervcx.v10 \ - makerfil.v10 makewvcx.v10 makewfil.v10 makeproj.mac makcjpeg.st \ - makdjpeg.st makljpeg.st maktjpeg.st makefile.manx makefile.sas \ - makefile.mms makefile.vms makvms.opt -CONFIGFILES= jconfig.cfg jconfig.bcc jconfig.mc6 jconfig.dj jconfig.wat \ - jconfig.vc jconfig.mac jconfig.st jconfig.manx jconfig.sas \ - jconfig.vms -CONFIGUREFILES= config.guess config.sub install-sh ltmain.sh depcomp missing -OTHERFILES= jconfig.txt ckconfig.c ansi2knr.c ansi2knr.1 jmemdosa.asm \ - libjpeg.map -TESTFILES= testorig.jpg testimg.ppm testimg.bmp testimg.jpg testprog.jpg \ - testimgp.jpg -DISTFILES= $(DOCS) $(MKFILES) $(CONFIGFILES) $(SOURCES) $(INCLUDES) \ - $(CONFIGUREFILES) $(OTHERFILES) $(TESTFILES) -# library object files common to compression and decompression -COMOBJECTS= jaricom.obj jcomapi.obj jutils.obj jerror.obj jmemmgr.obj $(SYSDEPMEM) -# compression library object files -CLIBOBJECTS= jcapimin.obj jcapistd.obj jcarith.obj jctrans.obj jcparam.obj \ - jdatadst.obj jcinit.obj jcmaster.obj jcmarker.obj jcmainct.obj \ - jcprepct.obj jccoefct.obj jccolor.obj jcsample.obj jchuff.obj \ - jcdctmgr.obj jfdctfst.obj jfdctflt.obj jfdctint.obj -# decompression library object files -DLIBOBJECTS= jdapimin.obj jdapistd.obj jdarith.obj jdtrans.obj jdatasrc.obj \ - jdmaster.obj jdinput.obj jdmarker.obj jdhuff.obj jdmainct.obj \ - jdcoefct.obj jdpostct.obj jddctmgr.obj jidctfst.obj jidctflt.obj \ - jidctint.obj jdsample.obj jdcolor.obj jquant1.obj jquant2.obj \ - jdmerge.obj -# These objectfiles are included in libjpeg.olb -LIBOBJECTS= $(CLIBOBJECTS) $(DLIBOBJECTS) $(COMOBJECTS) -# object files for sample applications (excluding library files) -COBJECTS= cjpeg.obj rdppm.obj rdgif.obj rdtarga.obj rdrle.obj rdbmp.obj \ - rdswitch.obj cdjpeg.obj -DOBJECTS= djpeg.obj wrppm.obj wrgif.obj wrtarga.obj wrrle.obj wrbmp.obj \ - rdcolmap.obj cdjpeg.obj -TROBJECTS= jpegtran.obj rdswitch.obj cdjpeg.obj transupp.obj -# objectfile lists with commas --- what a crock -COBJLIST= cjpeg.obj,rdppm.obj,rdgif.obj,rdtarga.obj,rdrle.obj,rdbmp.obj,\ - rdswitch.obj,cdjpeg.obj -DOBJLIST= djpeg.obj,wrppm.obj,wrgif.obj,wrtarga.obj,wrrle.obj,wrbmp.obj,\ - rdcolmap.obj,cdjpeg.obj -TROBJLIST= jpegtran.obj,rdswitch.obj,cdjpeg.obj,transupp.obj -LIBOBJLIST= jaricom.obj,jcapimin.obj,jcapistd.obj,jcarith.obj,jctrans.obj,\ - jcparam.obj,jdatadst.obj,jcinit.obj,jcmaster.obj,jcmarker.obj,\ - jcmainct.obj,jcprepct.obj,jccoefct.obj,jccolor.obj,jcsample.obj,\ - jchuff.obj,jcdctmgr.obj,jfdctfst.obj,jfdctflt.obj,jfdctint.obj,\ - jdapimin.obj,jdapistd.obj,jdarith.obj,jdtrans.obj,jdatasrc.obj,\ - jdmaster.obj,jdinput.obj,jdmarker.obj,jdhuff.obj,jdmainct.obj,\ - jdcoefct.obj,jdpostct.obj,jddctmgr.obj,jidctfst.obj,jidctflt.obj,\ - jidctint.obj,jdsample.obj,jdcolor.obj,jquant1.obj,jquant2.obj,\ - jdmerge.obj,jcomapi.obj,jutils.obj,jerror.obj,jmemmgr.obj,$(SYSDEPMEM) - - -.first - @- Define /NoLog Sys Sys$Library - -ALL : libjpeg.olb cjpeg.exe djpeg.exe jpegtran.exe rdjpgcom.exe wrjpgcom.exe - @ Continue - -libjpeg.olb : $(LIBOBJECTS) - Library /Create libjpeg.olb $(LIBOBJLIST) - -cjpeg.exe : $(COBJECTS) libjpeg.olb - $(LINK) $(LFLAGS) /Executable = cjpeg.exe $(COBJLIST),libjpeg.olb/Library$(OPT) - -djpeg.exe : $(DOBJECTS) libjpeg.olb - $(LINK) $(LFLAGS) /Executable = djpeg.exe $(DOBJLIST),libjpeg.olb/Library$(OPT) - -jpegtran.exe : $(TROBJECTS) libjpeg.olb - $(LINK) $(LFLAGS) /Executable = jpegtran.exe $(TROBJLIST),libjpeg.olb/Library$(OPT) - -rdjpgcom.exe : rdjpgcom.obj - $(LINK) $(LFLAGS) /Executable = rdjpgcom.exe rdjpgcom.obj$(OPT) - -wrjpgcom.exe : wrjpgcom.obj - $(LINK) $(LFLAGS) /Executable = wrjpgcom.exe wrjpgcom.obj$(OPT) - -jconfig.h : jconfig.vms - @- Copy jconfig.vms jconfig.h - -clean : - @- Set Protection = Owner:RWED *.*;-1 - @- Set Protection = Owner:RWED *.OBJ - - Purge /NoLog /NoConfirm *.* - - Delete /NoLog /NoConfirm *.OBJ; - -test : cjpeg.exe djpeg.exe jpegtran.exe - mcr sys$disk:[]djpeg -dct int -ppm -outfile testout.ppm testorig.jpg - mcr sys$disk:[]djpeg -dct int -bmp -colors 256 -outfile testout.bmp testorig.jpg - mcr sys$disk:[]cjpeg -dct int -outfile testout.jpg testimg.ppm - mcr sys$disk:[]djpeg -dct int -ppm -outfile testoutp.ppm testprog.jpg - mcr sys$disk:[]cjpeg -dct int -progressive -opt -outfile testoutp.jpg testimg.ppm - mcr sys$disk:[]jpegtran -outfile testoutt.jpg testprog.jpg - - Backup /Compare/Log testimg.ppm testout.ppm - - Backup /Compare/Log testimg.bmp testout.bmp - - Backup /Compare/Log testimg.jpg testout.jpg - - Backup /Compare/Log testimg.ppm testoutp.ppm - - Backup /Compare/Log testimgp.jpg testoutp.jpg - - Backup /Compare/Log testorig.jpg testoutt.jpg - - -jaricom.obj : jaricom.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcapimin.obj : jcapimin.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcapistd.obj : jcapistd.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcarith.obj : jcarith.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jccoefct.obj : jccoefct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jccolor.obj : jccolor.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcdctmgr.obj : jcdctmgr.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h -jchuff.obj : jchuff.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcinit.obj : jcinit.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcmainct.obj : jcmainct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcmarker.obj : jcmarker.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcmaster.obj : jcmaster.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcomapi.obj : jcomapi.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcparam.obj : jcparam.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcprepct.obj : jcprepct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcsample.obj : jcsample.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jctrans.obj : jctrans.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdapimin.obj : jdapimin.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdapistd.obj : jdapistd.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdarith.obj : jdarith.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdatadst.obj : jdatadst.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h -jdatasrc.obj : jdatasrc.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h -jdcoefct.obj : jdcoefct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdcolor.obj : jdcolor.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jddctmgr.obj : jddctmgr.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h -jdhuff.obj : jdhuff.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdinput.obj : jdinput.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdmainct.obj : jdmainct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdmarker.obj : jdmarker.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdmaster.obj : jdmaster.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdmerge.obj : jdmerge.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdpostct.obj : jdpostct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdsample.obj : jdsample.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdtrans.obj : jdtrans.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jerror.obj : jerror.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jversion.h jerror.h -jfdctflt.obj : jfdctflt.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h -jfdctfst.obj : jfdctfst.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h -jfdctint.obj : jfdctint.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h -jidctflt.obj : jidctflt.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h -jidctfst.obj : jidctfst.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h -jidctint.obj : jidctint.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h -jquant1.obj : jquant1.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jquant2.obj : jquant2.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jutils.obj : jutils.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jmemmgr.obj : jmemmgr.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h -jmemansi.obj : jmemansi.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h -jmemname.obj : jmemname.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h -jmemnobs.obj : jmemnobs.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h -jmemdos.obj : jmemdos.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h -jmemmac.obj : jmemmac.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h -cjpeg.obj : cjpeg.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h jversion.h -djpeg.obj : djpeg.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h jversion.h -jpegtran.obj : jpegtran.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h transupp.h jversion.h -rdjpgcom.obj : rdjpgcom.c jinclude.h jconfig.h -wrjpgcom.obj : wrjpgcom.c jinclude.h jconfig.h -cdjpeg.obj : cdjpeg.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -rdcolmap.obj : rdcolmap.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -rdswitch.obj : rdswitch.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -transupp.obj : transupp.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h transupp.h -rdppm.obj : rdppm.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -wrppm.obj : wrppm.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -rdgif.obj : rdgif.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -wrgif.obj : wrgif.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -rdtarga.obj : rdtarga.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -wrtarga.obj : wrtarga.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -rdbmp.obj : rdbmp.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -wrbmp.obj : wrbmp.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -rdrle.obj : rdrle.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -wrrle.obj : wrrle.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h diff --git a/jpg/makefile.sas b/jpg/makefile.sas deleted file mode 100644 index 252f8fb..0000000 --- a/jpg/makefile.sas +++ /dev/null @@ -1,259 +0,0 @@ -# Makefile for Independent JPEG Group's software - -# This makefile is for Amiga systems using SAS C 6.0 and up. -# Thanks to Ed Hanway, Mark Rinfret, and Jim Zepeda. - -# Read installation instructions before saying "make" !! - -# The name of your C compiler: -CC= sc - -# You may need to adjust these cc options: -# Uncomment the following lines for generic 680x0 version -ARCHFLAGS= cpu=any -SUFFIX= - -# Uncomment the following lines for 68030-only version -#ARCHFLAGS= cpu=68030 -#SUFFIX=.030 - -CFLAGS= nostackcheck data=near parms=register optimize $(ARCHFLAGS) \ - ignore=104 ignore=304 ignore=306 -# ignore=104 disables warnings for mismatched const qualifiers -# ignore=304 disables warnings for variables being optimized out -# ignore=306 disables warnings for the inlining of functions -# Generally, we recommend defining any configuration symbols in jconfig.h, -# NOT via define switches here. - -# Link-time cc options: -LDFLAGS= SC SD ND BATCH - -# To link any special libraries, add the necessary commands here. -LDLIBS= LIB:scm.lib LIB:sc.lib - -# Put here the object file name for the correct system-dependent memory -# manager file. For Amiga we recommend jmemname.o. -SYSDEPMEM= jmemname.o - -# miscellaneous OS-dependent stuff -# linker -LN= slink -# file deletion command -RM= delete quiet -# library (.lib) file creation command -AR= oml - -# End of configurable options. - - -# source files: JPEG library proper -LIBSOURCES= jaricom.c jcapimin.c jcapistd.c jcarith.c jccoefct.c jccolor.c \ - jcdctmgr.c jchuff.c jcinit.c jcmainct.c jcmarker.c jcmaster.c \ - jcomapi.c jcparam.c jcprepct.c jcsample.c jctrans.c jdapimin.c \ - jdapistd.c jdarith.c jdatadst.c jdatasrc.c jdcoefct.c jdcolor.c \ - jddctmgr.c jdhuff.c jdinput.c jdmainct.c jdmarker.c jdmaster.c \ - jdmerge.c jdpostct.c jdsample.c jdtrans.c jerror.c jfdctflt.c \ - jfdctfst.c jfdctint.c jidctflt.c jidctfst.c jidctint.c jquant1.c \ - jquant2.c jutils.c jmemmgr.c -# memmgr back ends: compile only one of these into a working library -SYSDEPSOURCES= jmemansi.c jmemname.c jmemnobs.c jmemdos.c jmemmac.c -# source files: cjpeg/djpeg/jpegtran applications, also rdjpgcom/wrjpgcom -APPSOURCES= cjpeg.c djpeg.c jpegtran.c rdjpgcom.c wrjpgcom.c cdjpeg.c \ - rdcolmap.c rdswitch.c transupp.c rdppm.c wrppm.c rdgif.c wrgif.c \ - rdtarga.c wrtarga.c rdbmp.c wrbmp.c rdrle.c wrrle.c -SOURCES= $(LIBSOURCES) $(SYSDEPSOURCES) $(APPSOURCES) -# files included by source files -INCLUDES= jdct.h jerror.h jinclude.h jmemsys.h jmorecfg.h jpegint.h \ - jpeglib.h jversion.h cdjpeg.h cderror.h transupp.h -# documentation, test, and support files -DOCS= README install.txt usage.txt cjpeg.1 djpeg.1 jpegtran.1 rdjpgcom.1 \ - wrjpgcom.1 wizard.txt example.c libjpeg.txt structure.txt \ - coderules.txt filelist.txt change.log -MKFILES= configure Makefile.in makefile.ansi makefile.unix makefile.bcc \ - makefile.mc6 makefile.dj makefile.wat makefile.vc makejdsw.vc6 \ - makeadsw.vc6 makejdep.vc6 makejdsp.vc6 makejmak.vc6 makecdep.vc6 \ - makecdsp.vc6 makecmak.vc6 makeddep.vc6 makeddsp.vc6 makedmak.vc6 \ - maketdep.vc6 maketdsp.vc6 maketmak.vc6 makerdep.vc6 makerdsp.vc6 \ - makermak.vc6 makewdep.vc6 makewdsp.vc6 makewmak.vc6 makejsln.v10 \ - makeasln.v10 makejvcx.v10 makejfil.v10 makecvcx.v10 makecfil.v10 \ - makedvcx.v10 makedfil.v10 maketvcx.v10 maketfil.v10 makervcx.v10 \ - makerfil.v10 makewvcx.v10 makewfil.v10 makeproj.mac makcjpeg.st \ - makdjpeg.st makljpeg.st maktjpeg.st makefile.manx makefile.sas \ - makefile.mms makefile.vms makvms.opt -CONFIGFILES= jconfig.cfg jconfig.bcc jconfig.mc6 jconfig.dj jconfig.wat \ - jconfig.vc jconfig.mac jconfig.st jconfig.manx jconfig.sas \ - jconfig.vms -CONFIGUREFILES= config.guess config.sub install-sh ltmain.sh depcomp missing -OTHERFILES= jconfig.txt ckconfig.c ansi2knr.c ansi2knr.1 jmemdosa.asm \ - libjpeg.map -TESTFILES= testorig.jpg testimg.ppm testimg.bmp testimg.jpg testprog.jpg \ - testimgp.jpg -DISTFILES= $(DOCS) $(MKFILES) $(CONFIGFILES) $(SOURCES) $(INCLUDES) \ - $(CONFIGUREFILES) $(OTHERFILES) $(TESTFILES) -# library object files common to compression and decompression -COMOBJECTS= jaricom.o jcomapi.o jutils.o jerror.o jmemmgr.o $(SYSDEPMEM) -# compression library object files -CLIBOBJECTS= jcapimin.o jcapistd.o jcarith.o jctrans.o jcparam.o \ - jdatadst.o jcinit.o jcmaster.o jcmarker.o jcmainct.o jcprepct.o \ - jccoefct.o jccolor.o jcsample.o jchuff.o jcdctmgr.o jfdctfst.o \ - jfdctflt.o jfdctint.o -# decompression library object files -DLIBOBJECTS= jdapimin.o jdapistd.o jdarith.o jdtrans.o jdatasrc.o \ - jdmaster.o jdinput.o jdmarker.o jdhuff.o jdmainct.o \ - jdcoefct.o jdpostct.o jddctmgr.o jidctfst.o jidctflt.o \ - jidctint.o jdsample.o jdcolor.o jquant1.o jquant2.o jdmerge.o -# These objectfiles are included in libjpeg.lib -LIBOBJECTS= $(CLIBOBJECTS) $(DLIBOBJECTS) $(COMOBJECTS) -# object files for sample applications (excluding library files) -COBJECTS= cjpeg.o rdppm.o rdgif.o rdtarga.o rdrle.o rdbmp.o rdswitch.o \ - cdjpeg.o -DOBJECTS= djpeg.o wrppm.o wrgif.o wrtarga.o wrrle.o wrbmp.o rdcolmap.o \ - cdjpeg.o -TROBJECTS= jpegtran.o rdswitch.o cdjpeg.o transupp.o - - -all: libjpeg.lib cjpeg$(SUFFIX) djpeg$(SUFFIX) jpegtran$(SUFFIX) rdjpgcom$(SUFFIX) wrjpgcom$(SUFFIX) - -# note: do several AR steps to avoid command line length limitations - -libjpeg.lib: $(LIBOBJECTS) - -$(RM) libjpeg.lib - $(AR) libjpeg.lib r $(CLIBOBJECTS) - $(AR) libjpeg.lib r $(DLIBOBJECTS) - $(AR) libjpeg.lib r $(COMOBJECTS) - -cjpeg$(SUFFIX): $(COBJECTS) libjpeg.lib - $(LN) - -# You may want to adjust these compiler options: -CFLAGS= $(cflags) $(cdebug) $(cvars) -I. -# Generally, we recommend defining any configuration symbols in jconfig.h, -# NOT via -D switches here. - -# Link-time options: -LDFLAGS= $(ldebug) $(conlflags) - -# To link any special libraries, add the necessary commands here. -LDLIBS= $(conlibs) - -# Put here the object file name for the correct system-dependent memory -# manager file. For NT we suggest jmemnobs.obj, which expects the OS to -# provide adequate virtual memory. -SYSDEPMEM= jmemnobs.obj - -# miscellaneous OS-dependent stuff -# file deletion command -RM= del - -# End of configurable options. - - -# source files: JPEG library proper -LIBSOURCES= jaricom.c jcapimin.c jcapistd.c jcarith.c jccoefct.c jccolor.c \ - jcdctmgr.c jchuff.c jcinit.c jcmainct.c jcmarker.c jcmaster.c \ - jcomapi.c jcparam.c jcprepct.c jcsample.c jctrans.c jdapimin.c \ - jdapistd.c jdarith.c jdatadst.c jdatasrc.c jdcoefct.c jdcolor.c \ - jddctmgr.c jdhuff.c jdinput.c jdmainct.c jdmarker.c jdmaster.c \ - jdmerge.c jdpostct.c jdsample.c jdtrans.c jerror.c jfdctflt.c \ - jfdctfst.c jfdctint.c jidctflt.c jidctfst.c jidctint.c jquant1.c \ - jquant2.c jutils.c jmemmgr.c -# memmgr back ends: compile only one of these into a working library -SYSDEPSOURCES= jmemansi.c jmemname.c jmemnobs.c jmemdos.c jmemmac.c -# source files: cjpeg/djpeg/jpegtran applications, also rdjpgcom/wrjpgcom -APPSOURCES= cjpeg.c djpeg.c jpegtran.c rdjpgcom.c wrjpgcom.c cdjpeg.c \ - rdcolmap.c rdswitch.c transupp.c rdppm.c wrppm.c rdgif.c wrgif.c \ - rdtarga.c wrtarga.c rdbmp.c wrbmp.c rdrle.c wrrle.c -SOURCES= $(LIBSOURCES) $(SYSDEPSOURCES) $(APPSOURCES) -# files included by source files -INCLUDES= jdct.h jerror.h jinclude.h jmemsys.h jmorecfg.h jpegint.h \ - jpeglib.h jversion.h cdjpeg.h cderror.h transupp.h -# documentation, test, and support files -DOCS= README install.txt usage.txt cjpeg.1 djpeg.1 jpegtran.1 rdjpgcom.1 \ - wrjpgcom.1 wizard.txt example.c libjpeg.txt structure.txt \ - coderules.txt filelist.txt change.log -MKFILES= configure Makefile.in makefile.ansi makefile.unix makefile.bcc \ - makefile.mc6 makefile.dj makefile.wat makefile.vc makejdsw.vc6 \ - makeadsw.vc6 makejdep.vc6 makejdsp.vc6 makejmak.vc6 makecdep.vc6 \ - makecdsp.vc6 makecmak.vc6 makeddep.vc6 makeddsp.vc6 makedmak.vc6 \ - maketdep.vc6 maketdsp.vc6 maketmak.vc6 makerdep.vc6 makerdsp.vc6 \ - makermak.vc6 makewdep.vc6 makewdsp.vc6 makewmak.vc6 makejsln.v10 \ - makeasln.v10 makejvcx.v10 makejfil.v10 makecvcx.v10 makecfil.v10 \ - makedvcx.v10 makedfil.v10 maketvcx.v10 maketfil.v10 makervcx.v10 \ - makerfil.v10 makewvcx.v10 makewfil.v10 makeproj.mac makcjpeg.st \ - makdjpeg.st makljpeg.st maktjpeg.st makefile.manx makefile.sas \ - makefile.mms makefile.vms makvms.opt -CONFIGFILES= jconfig.cfg jconfig.bcc jconfig.mc6 jconfig.dj jconfig.wat \ - jconfig.vc jconfig.mac jconfig.st jconfig.manx jconfig.sas \ - jconfig.vms -CONFIGUREFILES= config.guess config.sub install-sh ltmain.sh depcomp missing -OTHERFILES= jconfig.txt ckconfig.c ansi2knr.c ansi2knr.1 jmemdosa.asm \ - libjpeg.map -TESTFILES= testorig.jpg testimg.ppm testimg.bmp testimg.jpg testprog.jpg \ - testimgp.jpg -DISTFILES= $(DOCS) $(MKFILES) $(CONFIGFILES) $(SOURCES) $(INCLUDES) \ - $(CONFIGUREFILES) $(OTHERFILES) $(TESTFILES) -# library object files common to compression and decompression -COMOBJECTS= jaricom.obj jcomapi.obj jutils.obj jerror.obj jmemmgr.obj $(SYSDEPMEM) -# compression library object files -CLIBOBJECTS= jcapimin.obj jcapistd.obj jcarith.obj jctrans.obj jcparam.obj \ - jdatadst.obj jcinit.obj jcmaster.obj jcmarker.obj jcmainct.obj \ - jcprepct.obj jccoefct.obj jccolor.obj jcsample.obj jchuff.obj \ - jcdctmgr.obj jfdctfst.obj jfdctflt.obj jfdctint.obj -# decompression library object files -DLIBOBJECTS= jdapimin.obj jdapistd.obj jdarith.obj jdtrans.obj jdatasrc.obj \ - jdmaster.obj jdinput.obj jdmarker.obj jdhuff.obj jdmainct.obj \ - jdcoefct.obj jdpostct.obj jddctmgr.obj jidctfst.obj jidctflt.obj \ - jidctint.obj jdsample.obj jdcolor.obj jquant1.obj jquant2.obj \ - jdmerge.obj -# These objectfiles are included in libjpeg.lib -LIBOBJECTS= $(CLIBOBJECTS) $(DLIBOBJECTS) $(COMOBJECTS) -# object files for sample applications (excluding library files) -COBJECTS= cjpeg.obj rdppm.obj rdgif.obj rdtarga.obj rdrle.obj rdbmp.obj \ - rdswitch.obj cdjpeg.obj -DOBJECTS= djpeg.obj wrppm.obj wrgif.obj wrtarga.obj wrrle.obj wrbmp.obj \ - rdcolmap.obj cdjpeg.obj -TROBJECTS= jpegtran.obj rdswitch.obj cdjpeg.obj transupp.obj - -# Template command for compiling .c to .obj -.c.obj: - $(cc) $(CFLAGS) $*.c - - -all: libjpeg.lib cjpeg.exe djpeg.exe jpegtran.exe rdjpgcom.exe wrjpgcom.exe - -libjpeg.lib: $(LIBOBJECTS) - $(RM) libjpeg.lib - lib -out:libjpeg.lib $(LIBOBJECTS) - -cjpeg.exe: $(COBJECTS) libjpeg.lib - $(link) $(LDFLAGS) -out:cjpeg.exe $(COBJECTS) libjpeg.lib $(LDLIBS) - -djpeg.exe: $(DOBJECTS) libjpeg.lib - $(link) $(LDFLAGS) -out:djpeg.exe $(DOBJECTS) libjpeg.lib $(LDLIBS) - -jpegtran.exe: $(TROBJECTS) libjpeg.lib - $(link) $(LDFLAGS) -out:jpegtran.exe $(TROBJECTS) libjpeg.lib $(LDLIBS) - -rdjpgcom.exe: rdjpgcom.obj - $(link) $(LDFLAGS) -out:rdjpgcom.exe rdjpgcom.obj $(LDLIBS) - -wrjpgcom.exe: wrjpgcom.obj - $(link) $(LDFLAGS) -out:wrjpgcom.exe wrjpgcom.obj $(LDLIBS) - - -clean: - $(RM) *.obj *.exe libjpeg.lib - $(RM) testout* - -setup-vc6: - ren jconfig.vc jconfig.h - ren makejdsw.vc6 jpeg.dsw - ren makeadsw.vc6 apps.dsw - ren makejmak.vc6 jpeg.mak - ren makejdep.vc6 jpeg.dep - ren makejdsp.vc6 jpeg.dsp - ren makecmak.vc6 cjpeg.mak - ren makecdep.vc6 cjpeg.dep - ren makecdsp.vc6 cjpeg.dsp - ren makedmak.vc6 djpeg.mak - ren makeddep.vc6 djpeg.dep - ren makeddsp.vc6 djpeg.dsp - ren maketmak.vc6 jpegtran.mak - ren maketdep.vc6 jpegtran.dep - ren maketdsp.vc6 jpegtran.dsp - ren makermak.vc6 rdjpgcom.mak - ren makerdep.vc6 rdjpgcom.dep - ren makerdsp.vc6 rdjpgcom.dsp - ren makewmak.vc6 wrjpgcom.mak - ren makewdep.vc6 wrjpgcom.dep - ren makewdsp.vc6 wrjpgcom.dsp - -setup-v10: - ren jconfig.vc jconfig.h - ren makejsln.v10 jpeg.sln - ren makeasln.v10 apps.sln - ren makejvcx.v10 jpeg.vcxproj - ren makejfil.v10 jpeg.vcxproj.filters - ren makecvcx.v10 cjpeg.vcxproj - ren makecfil.v10 cjpeg.vcxproj.filters - ren makedvcx.v10 djpeg.vcxproj - ren makedfil.v10 djpeg.vcxproj.filters - ren maketvcx.v10 jpegtran.vcxproj - ren maketfil.v10 jpegtran.vcxproj.filters - ren makervcx.v10 rdjpgcom.vcxproj - ren makerfil.v10 rdjpgcom.vcxproj.filters - ren makewvcx.v10 wrjpgcom.vcxproj - ren makewfil.v10 wrjpgcom.vcxproj.filters - -test: - IF EXIST testout* $(RM) testout* - .\djpeg -dct int -ppm -outfile testout.ppm testorig.jpg - .\djpeg -dct int -bmp -colors 256 -outfile testout.bmp testorig.jpg - .\cjpeg -dct int -outfile testout.jpg testimg.ppm - .\djpeg -dct int -ppm -outfile testoutp.ppm testprog.jpg - .\cjpeg -dct int -progressive -opt -outfile testoutp.jpg testimg.ppm - .\jpegtran -outfile testoutt.jpg testprog.jpg - fc /b testimg.ppm testout.ppm - fc /b testimg.bmp testout.bmp - fc /b testimg.jpg testout.jpg - fc /b testimg.ppm testoutp.ppm - fc /b testimgp.jpg testoutp.jpg - fc /b testorig.jpg testoutt.jpg - -test-build: - IF EXIST testout* $(RM) testout* - .\djpeg\Release\djpeg -dct int -ppm -outfile testout.ppm testorig.jpg - .\djpeg\Release\djpeg -dct int -bmp -colors 256 -outfile testout.bmp testorig.jpg - .\cjpeg\Release\cjpeg -dct int -outfile testout.jpg testimg.ppm - .\djpeg\Release\djpeg -dct int -ppm -outfile testoutp.ppm testprog.jpg - .\cjpeg\Release\cjpeg -dct int -progressive -opt -outfile testoutp.jpg testimg.ppm - .\jpegtran\Release\jpegtran -outfile testoutt.jpg testprog.jpg - fc /b testimg.ppm testout.ppm - fc /b testimg.bmp testout.bmp - fc /b testimg.jpg testout.jpg - fc /b testimg.ppm testoutp.ppm - fc /b testimgp.jpg testoutp.jpg - fc /b testorig.jpg testoutt.jpg - - -jaricom.obj: jaricom.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcapimin.obj: jcapimin.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcapistd.obj: jcapistd.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcarith.obj: jcarith.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jccoefct.obj: jccoefct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jccolor.obj: jccolor.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcdctmgr.obj: jcdctmgr.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h -jchuff.obj: jchuff.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcinit.obj: jcinit.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcmainct.obj: jcmainct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcmarker.obj: jcmarker.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcmaster.obj: jcmaster.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcomapi.obj: jcomapi.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcparam.obj: jcparam.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcprepct.obj: jcprepct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcsample.obj: jcsample.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jctrans.obj: jctrans.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdapimin.obj: jdapimin.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdapistd.obj: jdapistd.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdarith.obj: jdarith.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdatadst.obj: jdatadst.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h -jdatasrc.obj: jdatasrc.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h -jdcoefct.obj: jdcoefct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdcolor.obj: jdcolor.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jddctmgr.obj: jddctmgr.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h -jdhuff.obj: jdhuff.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdinput.obj: jdinput.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdmainct.obj: jdmainct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdmarker.obj: jdmarker.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdmaster.obj: jdmaster.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdmerge.obj: jdmerge.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdpostct.obj: jdpostct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdsample.obj: jdsample.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdtrans.obj: jdtrans.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jerror.obj: jerror.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jversion.h jerror.h -jfdctflt.obj: jfdctflt.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h -jfdctfst.obj: jfdctfst.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h -jfdctint.obj: jfdctint.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h -jidctflt.obj: jidctflt.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h -jidctfst.obj: jidctfst.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h -jidctint.obj: jidctint.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h -jquant1.obj: jquant1.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jquant2.obj: jquant2.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jutils.obj: jutils.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jmemmgr.obj: jmemmgr.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h -jmemansi.obj: jmemansi.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h -jmemname.obj: jmemname.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h -jmemnobs.obj: jmemnobs.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h -jmemdos.obj: jmemdos.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h -jmemmac.obj: jmemmac.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h -cjpeg.obj: cjpeg.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h jversion.h -djpeg.obj: djpeg.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h jversion.h -jpegtran.obj: jpegtran.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h transupp.h jversion.h -rdjpgcom.obj: rdjpgcom.c jinclude.h jconfig.h -wrjpgcom.obj: wrjpgcom.c jinclude.h jconfig.h -cdjpeg.obj: cdjpeg.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -rdcolmap.obj: rdcolmap.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -rdswitch.obj: rdswitch.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -transupp.obj: transupp.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h transupp.h -rdppm.obj: rdppm.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -wrppm.obj: wrppm.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -rdgif.obj: rdgif.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -wrgif.obj: wrgif.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -rdtarga.obj: rdtarga.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -wrtarga.obj: wrtarga.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -rdbmp.obj: rdbmp.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -wrbmp.obj: wrbmp.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -rdrle.obj: rdrle.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -wrrle.obj: wrrle.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h diff --git a/jpg/makefile.vms b/jpg/makefile.vms deleted file mode 100644 index a07d070..0000000 --- a/jpg/makefile.vms +++ /dev/null @@ -1,142 +0,0 @@ -$! Makefile for Independent JPEG Group's software -$! -$! This is a command procedure for Digital VMS systems that do not have MMS. -$! It builds the JPEG software by brute force, recompiling everything whether -$! or not it is necessary. It then runs the basic self-test. -$! Thanks to Rick Dyson (dyson@iowasp.physics.uiowa.edu) -$! and Tim Bell (tbell@netcom.com) for their help. -$! -$! Read installation instructions before running this!! -$! -$ If F$Mode () .eqs. "INTERACTIVE" -$ Then -$ VERIFY = F$Verify (0) -$ Else -$ VERIFY = F$Verify (1) -$ EndIf -$ On Control_Y Then GoTo End -$ On Error Then GoTo End -$ -$ If F$GetSyi ("HW_MODEL") .gt. 1023 -$ Then -$ OPT = "" -$ Else -$ OPT = ",Sys$Disk:[]makvms.opt/Option" -$ EndIf -$ -$ DoCompile := CC /NoDebug /Optimize /NoList -$! -$ DoCompile jaricom.c -$ DoCompile jcapimin.c -$ DoCompile jcapistd.c -$ DoCompile jcarith.c -$ DoCompile jctrans.c -$ DoCompile jcparam.c -$ DoCompile jdatadst.c -$ DoCompile jcinit.c -$ DoCompile jcmaster.c -$ DoCompile jcmarker.c -$ DoCompile jcmainct.c -$ DoCompile jcprepct.c -$ DoCompile jccoefct.c -$ DoCompile jccolor.c -$ DoCompile jcsample.c -$ DoCompile jchuff.c -$ DoCompile jcdctmgr.c -$ DoCompile jfdctfst.c -$ DoCompile jfdctflt.c -$ DoCompile jfdctint.c -$ DoCompile jdapimin.c -$ DoCompile jdapistd.c -$ DoCompile jdarith.c -$ DoCompile jdtrans.c -$ DoCompile jdatasrc.c -$ DoCompile jdmaster.c -$ DoCompile jdinput.c -$ DoCompile jdmarker.c -$ DoCompile jdhuff.c -$ DoCompile jdmainct.c -$ DoCompile jdcoefct.c -$ DoCompile jdpostct.c -$ DoCompile jddctmgr.c -$ DoCompile jidctfst.c -$ DoCompile jidctflt.c -$ DoCompile jidctint.c -$ DoCompile jdsample.c -$ DoCompile jdcolor.c -$ DoCompile jquant1.c -$ DoCompile jquant2.c -$ DoCompile jdmerge.c -$ DoCompile jcomapi.c -$ DoCompile jutils.c -$ DoCompile jerror.c -$ DoCompile jmemmgr.c -$ DoCompile jmemnobs.c -$! -$ Library /Create libjpeg.olb jaricom.obj,jcapimin.obj,jcapistd.obj, - - jcarith.obj,jctrans.obj,jcparam.obj,jdatadst.obj,jcinit.obj, - - jcmaster.obj,jcmarker.obj,jcmainct.obj,jcprepct.obj,jccoefct.obj, - - jccolor.obj,jcsample.obj,jchuff.obj,jcdctmgr.obj,jfdctfst.obj, - - jfdctflt.obj,jfdctint.obj,jdapimin.obj,jdapistd.obj,jdarith.obj, - - jdtrans.obj,jdatasrc.obj,jdmaster.obj,jdinput.obj,jdmarker.obj, - - jdhuff.obj,jdmainct.obj,jdcoefct.obj,jdpostct.obj,jddctmgr.obj, - - jidctfst.obj,jidctflt.obj,jidctint.obj,jdsample.obj,jdcolor.obj, - - jquant1.obj,jquant2.obj,jdmerge.obj,jcomapi.obj,jutils.obj, - - jerror.obj,jmemmgr.obj,jmemnobs.obj -$! -$ DoCompile cjpeg.c -$ DoCompile rdppm.c -$ DoCompile rdgif.c -$ DoCompile rdtarga.c -$ DoCompile rdrle.c -$ DoCompile rdbmp.c -$ DoCompile rdswitch.c -$ DoCompile cdjpeg.c -$! -$ Link /NoMap /Executable = cjpeg.exe cjpeg.obj,rdppm.obj,rdgif.obj, - - rdtarga.obj,rdrle.obj,rdbmp.obj,rdswitch.obj,cdjpeg.obj,libjpeg.olb/Library'OPT' -$! -$ DoCompile djpeg.c -$ DoCompile wrppm.c -$ DoCompile wrgif.c -$ DoCompile wrtarga.c -$ DoCompile wrrle.c -$ DoCompile wrbmp.c -$ DoCompile rdcolmap.c -$ DoCompile cdjpeg.c -$! -$ Link /NoMap /Executable = djpeg.exe djpeg.obj,wrppm.obj,wrgif.obj, - - wrtarga.obj,wrrle.obj,wrbmp.obj,rdcolmap.obj,cdjpeg.obj,libjpeg.olb/Library'OPT' -$! -$ DoCompile jpegtran.c -$ DoCompile rdswitch.c -$ DoCompile cdjpeg.c -$ DoCompile transupp.c -$! -$ Link /NoMap /Executable = jpegtran.exe jpegtran.obj,rdswitch.obj, - - cdjpeg.obj,transupp.obj,libjpeg.olb/Library'OPT' -$! -$ DoCompile rdjpgcom.c -$ Link /NoMap /Executable = rdjpgcom.exe rdjpgcom.obj'OPT' -$! -$ DoCompile wrjpgcom.c -$ Link /NoMap /Executable = wrjpgcom.exe wrjpgcom.obj'OPT' -$! -$! Run the self-test -$! -$ mcr sys$disk:[]djpeg -dct int -ppm -outfile testout.ppm testorig.jpg -$ mcr sys$disk:[]djpeg -dct int -bmp -colors 256 -outfile testout.bmp testorig.jpg -$ mcr sys$disk:[]cjpeg -dct int -outfile testout.jpg testimg.ppm -$ mcr sys$disk:[]djpeg -dct int -ppm -outfile testoutp.ppm testprog.jpg -$ mcr sys$disk:[]cjpeg -dct int -progressive -opt -outfile testoutp.jpg testimg.ppm -$ mcr sys$disk:[]jpegtran -outfile testoutt.jpg testprog.jpg -$ Backup /Compare/Log testimg.ppm testout.ppm -$ Backup /Compare/Log testimg.bmp testout.bmp -$ Backup /Compare/Log testimg.jpg testout.jpg -$ Backup /Compare/Log testimg.ppm testoutp.ppm -$ Backup /Compare/Log testimgp.jpg testoutp.jpg -$ Backup /Compare/Log testorig.jpg testoutt.jpg -$! -$End: -$ If Verify Then Set Verify -$ Exit diff --git a/jpg/makefile.wat b/jpg/makefile.wat deleted file mode 100644 index a3e652b..0000000 --- a/jpg/makefile.wat +++ /dev/null @@ -1,240 +0,0 @@ -# Makefile for Independent JPEG Group's software - -# This makefile is suitable for Watcom C/C++ 10.0 on MS-DOS (using -# dos4g extender), OS/2, and Windows NT console mode. -# Thanks to Janos Haide, jhaide@btrvtech.com. - -# Read installation instructions before saying "wmake" !! - -# Uncomment line for desired system -SYSTEM=DOS -#SYSTEM=OS2 -#SYSTEM=NT - -# The name of your C compiler: -CC= wcl386 - -# You may need to adjust these cc options: -CFLAGS= -4r -ort -wx -zq -bt=$(SYSTEM) -# Caution: avoid -ol or -ox; these generate bad code with 10.0 or 10.0a. -# Generally, we recommend defining any configuration symbols in jconfig.h, -# NOT via -D switches here. - -# Link-time cc options: -!ifeq SYSTEM DOS -LDFLAGS= -zq -l=dos4g -!else ifeq SYSTEM OS2 -LDFLAGS= -zq -l=os2v2 -!else ifeq SYSTEM NT -LDFLAGS= -zq -l=nt -!endif - -# Put here the object file name for the correct system-dependent memory -# manager file. jmemnobs should work fine for dos4g or OS/2 environment. -SYSDEPMEM= jmemnobs.obj - -# End of configurable options. - - -# source files: JPEG library proper -LIBSOURCES= jaricom.c jcapimin.c jcapistd.c jcarith.c jccoefct.c jccolor.c & - jcdctmgr.c jchuff.c jcinit.c jcmainct.c jcmarker.c jcmaster.c & - jcomapi.c jcparam.c jcprepct.c jcsample.c jctrans.c jdapimin.c & - jdapistd.c jdarith.c jdatadst.c jdatasrc.c jdcoefct.c jdcolor.c & - jddctmgr.c jdhuff.c jdinput.c jdmainct.c jdmarker.c jdmaster.c & - jdmerge.c jdpostct.c jdsample.c jdtrans.c jerror.c jfdctflt.c & - jfdctfst.c jfdctint.c jidctflt.c jidctfst.c jidctint.c jquant1.c & - jquant2.c jutils.c jmemmgr.c -# memmgr back ends: compile only one of these into a working library -SYSDEPSOURCES= jmemansi.c jmemname.c jmemnobs.c jmemdos.c jmemmac.c -# source files: cjpeg/djpeg/jpegtran applications, also rdjpgcom/wrjpgcom -APPSOURCES= cjpeg.c djpeg.c jpegtran.c rdjpgcom.c wrjpgcom.c cdjpeg.c & - rdcolmap.c rdswitch.c transupp.c rdppm.c wrppm.c rdgif.c wrgif.c & - rdtarga.c wrtarga.c rdbmp.c wrbmp.c rdrle.c wrrle.c -SOURCES= $(LIBSOURCES) $(SYSDEPSOURCES) $(APPSOURCES) -# files included by source files -INCLUDES= jdct.h jerror.h jinclude.h jmemsys.h jmorecfg.h jpegint.h & - jpeglib.h jversion.h cdjpeg.h cderror.h transupp.h -# documentation, test, and support files -DOCS= README install.txt usage.txt cjpeg.1 djpeg.1 jpegtran.1 rdjpgcom.1 & - wrjpgcom.1 wizard.txt example.c libjpeg.txt structure.txt & - coderules.txt filelist.txt change.log -MKFILES= configure Makefile.in makefile.ansi makefile.unix makefile.bcc & - makefile.mc6 makefile.dj makefile.wat makefile.vc makejdsw.vc6 & - makeadsw.vc6 makejdep.vc6 makejdsp.vc6 makejmak.vc6 makecdep.vc6 & - makecdsp.vc6 makecmak.vc6 makeddep.vc6 makeddsp.vc6 makedmak.vc6 & - maketdep.vc6 maketdsp.vc6 maketmak.vc6 makerdep.vc6 makerdsp.vc6 & - makermak.vc6 makewdep.vc6 makewdsp.vc6 makewmak.vc6 makejsln.v10 & - makeasln.v10 makejvcx.v10 makejfil.v10 makecvcx.v10 makecfil.v10 & - makedvcx.v10 makedfil.v10 maketvcx.v10 maketfil.v10 makervcx.v10 & - makerfil.v10 makewvcx.v10 makewfil.v10 makeproj.mac makcjpeg.st & - makdjpeg.st makljpeg.st maktjpeg.st makefile.manx makefile.sas & - makefile.mms makefile.vms makvms.opt -CONFIGFILES= jconfig.cfg jconfig.bcc jconfig.mc6 jconfig.dj jconfig.wat & - jconfig.vc jconfig.mac jconfig.st jconfig.manx jconfig.sas & - jconfig.vms -CONFIGUREFILES= config.guess config.sub install-sh ltmain.sh depcomp missing -OTHERFILES= jconfig.txt ckconfig.c ansi2knr.c ansi2knr.1 jmemdosa.asm & - libjpeg.map -TESTFILES= testorig.jpg testimg.ppm testimg.bmp testimg.jpg testprog.jpg & - testimgp.jpg -DISTFILES= $(DOCS) $(MKFILES) $(CONFIGFILES) $(SOURCES) $(INCLUDES) & - $(CONFIGUREFILES) $(OTHERFILES) $(TESTFILES) -# library object files common to compression and decompression -COMOBJECTS= jaricom.obj jcomapi.obj jutils.obj jerror.obj jmemmgr.obj $(SYSDEPMEM) -# compression library object files -CLIBOBJECTS= jcapimin.obj jcapistd.obj jcarith.obj jctrans.obj jcparam.obj & - jdatadst.obj jcinit.obj jcmaster.obj jcmarker.obj jcmainct.obj & - jcprepct.obj jccoefct.obj jccolor.obj jcsample.obj jchuff.obj & - jcdctmgr.obj jfdctfst.obj jfdctflt.obj jfdctint.obj -# decompression library object files -DLIBOBJECTS= jdapimin.obj jdapistd.obj jdarith.obj jdtrans.obj jdatasrc.obj & - jdmaster.obj jdinput.obj jdmarker.obj jdhuff.obj jdmainct.obj & - jdcoefct.obj jdpostct.obj jddctmgr.obj jidctfst.obj jidctflt.obj & - jidctint.obj jdsample.obj jdcolor.obj jquant1.obj jquant2.obj & - jdmerge.obj -# These objectfiles are included in libjpeg.lib -LIBOBJECTS= $(CLIBOBJECTS) $(DLIBOBJECTS) $(COMOBJECTS) -# object files for sample applications (excluding library files) -COBJECTS= cjpeg.obj rdppm.obj rdgif.obj rdtarga.obj rdrle.obj rdbmp.obj & - rdswitch.obj cdjpeg.obj -DOBJECTS= djpeg.obj wrppm.obj wrgif.obj wrtarga.obj wrrle.obj wrbmp.obj & - rdcolmap.obj cdjpeg.obj -TROBJECTS= jpegtran.obj rdswitch.obj cdjpeg.obj transupp.obj - - -all: libjpeg.lib cjpeg.exe djpeg.exe jpegtran.exe rdjpgcom.exe wrjpgcom.exe - -libjpeg.lib: $(LIBOBJECTS) - - del libjpeg.lib - * wlib -n libjpeg.lib $(LIBOBJECTS) - -cjpeg.exe: $(COBJECTS) libjpeg.lib - $(CC) $(LDFLAGS) $(COBJECTS) libjpeg.lib - -djpeg.exe: $(DOBJECTS) libjpeg.lib - $(CC) $(LDFLAGS) $(DOBJECTS) libjpeg.lib - -jpegtran.exe: $(TROBJECTS) libjpeg.lib - $(CC) $(LDFLAGS) $(TROBJECTS) libjpeg.lib - -rdjpgcom.exe: rdjpgcom.c - $(CC) $(CFLAGS) $(LDFLAGS) rdjpgcom.c - -wrjpgcom.exe: wrjpgcom.c - $(CC) $(CFLAGS) $(LDFLAGS) wrjpgcom.c - -.c.obj: - $(CC) $(CFLAGS) -c $< - -jconfig.h: jconfig.txt - echo You must prepare a system-dependent jconfig.h file. - echo Please read the installation directions in install.txt. - exit 1 - -clean: .SYMBOLIC - - del *.obj - - del libjpeg.lib - - del cjpeg.exe - - del djpeg.exe - - del jpegtran.exe - - del rdjpgcom.exe - - del wrjpgcom.exe - - del testout*.* - -test: cjpeg.exe djpeg.exe jpegtran.exe .SYMBOLIC - - del testout*.* - djpeg -dct int -ppm -outfile testout.ppm testorig.jpg - djpeg -dct int -bmp -colors 256 -outfile testout.bmp testorig.jpg - cjpeg -dct int -outfile testout.jpg testimg.ppm - djpeg -dct int -ppm -outfile testoutp.ppm testprog.jpg - cjpeg -dct int -progressive -opt -outfile testoutp.jpg testimg.ppm - jpegtran -outfile testoutt.jpg testprog.jpg -!ifeq SYSTEM DOS - fc /b testimg.ppm testout.ppm - fc /b testimg.bmp testout.bmp - fc /b testimg.jpg testout.jpg - fc /b testimg.ppm testoutp.ppm - fc /b testimgp.jpg testoutp.jpg - fc /b testorig.jpg testoutt.jpg -!else - echo n > n.tmp - comp testimg.ppm testout.ppm < n.tmp - comp testimg.bmp testout.bmp < n.tmp - comp testimg.jpg testout.jpg < n.tmp - comp testimg.ppm testoutp.ppm < n.tmp - comp testimgp.jpg testoutp.jpg < n.tmp - comp testorig.jpg testoutt.jpg < n.tmp - del n.tmp -!endif - - -jaricom.obj: jaricom.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcapimin.obj: jcapimin.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcapistd.obj: jcapistd.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcarith.obj: jcarith.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jccoefct.obj: jccoefct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jccolor.obj: jccolor.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcdctmgr.obj: jcdctmgr.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h -jchuff.obj: jchuff.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcinit.obj: jcinit.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcmainct.obj: jcmainct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcmarker.obj: jcmarker.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcmaster.obj: jcmaster.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcomapi.obj: jcomapi.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcparam.obj: jcparam.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcprepct.obj: jcprepct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcsample.obj: jcsample.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jctrans.obj: jctrans.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdapimin.obj: jdapimin.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdapistd.obj: jdapistd.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdarith.obj: jdarith.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdatadst.obj: jdatadst.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h -jdatasrc.obj: jdatasrc.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h -jdcoefct.obj: jdcoefct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdcolor.obj: jdcolor.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jddctmgr.obj: jddctmgr.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h -jdhuff.obj: jdhuff.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdinput.obj: jdinput.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdmainct.obj: jdmainct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdmarker.obj: jdmarker.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdmaster.obj: jdmaster.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdmerge.obj: jdmerge.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdpostct.obj: jdpostct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdsample.obj: jdsample.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdtrans.obj: jdtrans.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jerror.obj: jerror.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jversion.h jerror.h -jfdctflt.obj: jfdctflt.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h -jfdctfst.obj: jfdctfst.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h -jfdctint.obj: jfdctint.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h -jidctflt.obj: jidctflt.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h -jidctfst.obj: jidctfst.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h -jidctint.obj: jidctint.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h -jquant1.obj: jquant1.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jquant2.obj: jquant2.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jutils.obj: jutils.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jmemmgr.obj: jmemmgr.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h -jmemansi.obj: jmemansi.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h -jmemname.obj: jmemname.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h -jmemnobs.obj: jmemnobs.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h -jmemdos.obj: jmemdos.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h -jmemmac.obj: jmemmac.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h -cjpeg.obj: cjpeg.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h jversion.h -djpeg.obj: djpeg.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h jversion.h -jpegtran.obj: jpegtran.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h transupp.h jversion.h -rdjpgcom.obj: rdjpgcom.c jinclude.h jconfig.h -wrjpgcom.obj: wrjpgcom.c jinclude.h jconfig.h -cdjpeg.obj: cdjpeg.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -rdcolmap.obj: rdcolmap.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -rdswitch.obj: rdswitch.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -transupp.obj: transupp.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h transupp.h -rdppm.obj: rdppm.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -wrppm.obj: wrppm.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -rdgif.obj: rdgif.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -wrgif.obj: wrgif.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -rdtarga.obj: rdtarga.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -wrtarga.obj: wrtarga.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -rdbmp.obj: rdbmp.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -wrbmp.obj: wrbmp.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -rdrle.obj: rdrle.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -wrrle.obj: wrrle.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h diff --git a/jpg/makejdep.vc6 b/jpg/makejdep.vc6 deleted file mode 100644 index d373edf..0000000 --- a/jpg/makejdep.vc6 +++ /dev/null @@ -1,423 +0,0 @@ -# Microsoft Developer Studio erstellte Abhängigkeitsdatei, einbezogen von jpeg.mak - -.\jaricom.c : \ - ".\jconfig.h"\ - ".\jerror.h"\ - ".\jinclude.h"\ - ".\jmorecfg.h"\ - ".\jpegint.h"\ - ".\jpeglib.h"\ - - -.\jcapimin.c : \ - ".\jconfig.h"\ - ".\jerror.h"\ - ".\jinclude.h"\ - ".\jmorecfg.h"\ - ".\jpegint.h"\ - ".\jpeglib.h"\ - - -.\jcapistd.c : \ - ".\jconfig.h"\ - ".\jerror.h"\ - ".\jinclude.h"\ - ".\jmorecfg.h"\ - ".\jpegint.h"\ - ".\jpeglib.h"\ - - -.\jcarith.c : \ - ".\jconfig.h"\ - ".\jerror.h"\ - ".\jinclude.h"\ - ".\jmorecfg.h"\ - ".\jpegint.h"\ - ".\jpeglib.h"\ - - -.\jccoefct.c : \ - ".\jconfig.h"\ - ".\jerror.h"\ - ".\jinclude.h"\ - ".\jmorecfg.h"\ - ".\jpegint.h"\ - ".\jpeglib.h"\ - - -.\jccolor.c : \ - ".\jconfig.h"\ - ".\jerror.h"\ - ".\jinclude.h"\ - ".\jmorecfg.h"\ - ".\jpegint.h"\ - ".\jpeglib.h"\ - - -.\jcdctmgr.c : \ - ".\jconfig.h"\ - ".\jdct.h"\ - ".\jerror.h"\ - ".\jinclude.h"\ - ".\jmorecfg.h"\ - ".\jpegint.h"\ - ".\jpeglib.h"\ - - -.\jchuff.c : \ - ".\jconfig.h"\ - ".\jerror.h"\ - ".\jinclude.h"\ - ".\jmorecfg.h"\ - ".\jpegint.h"\ - ".\jpeglib.h"\ - - -.\jcinit.c : \ - ".\jconfig.h"\ - ".\jerror.h"\ - ".\jinclude.h"\ - ".\jmorecfg.h"\ - ".\jpegint.h"\ - ".\jpeglib.h"\ - - -.\jcmainct.c : \ - ".\jconfig.h"\ - ".\jerror.h"\ - ".\jinclude.h"\ - ".\jmorecfg.h"\ - ".\jpegint.h"\ - ".\jpeglib.h"\ - - -.\jcmarker.c : \ - ".\jconfig.h"\ - ".\jerror.h"\ - ".\jinclude.h"\ - ".\jmorecfg.h"\ - ".\jpegint.h"\ - ".\jpeglib.h"\ - - -.\jcmaster.c : \ - ".\jconfig.h"\ - ".\jerror.h"\ - ".\jinclude.h"\ - ".\jmorecfg.h"\ - ".\jpegint.h"\ - ".\jpeglib.h"\ - - -.\jcomapi.c : \ - ".\jconfig.h"\ - ".\jerror.h"\ - ".\jinclude.h"\ - ".\jmorecfg.h"\ - ".\jpegint.h"\ - ".\jpeglib.h"\ - - -.\jcparam.c : \ - ".\jconfig.h"\ - ".\jerror.h"\ - ".\jinclude.h"\ - ".\jmorecfg.h"\ - ".\jpegint.h"\ - ".\jpeglib.h"\ - - -.\jcprepct.c : \ - ".\jconfig.h"\ - ".\jerror.h"\ - ".\jinclude.h"\ - ".\jmorecfg.h"\ - ".\jpegint.h"\ - ".\jpeglib.h"\ - - -.\jcsample.c : \ - ".\jconfig.h"\ - ".\jerror.h"\ - ".\jinclude.h"\ - ".\jmorecfg.h"\ - ".\jpegint.h"\ - ".\jpeglib.h"\ - - -.\jctrans.c : \ - ".\jconfig.h"\ - ".\jerror.h"\ - ".\jinclude.h"\ - ".\jmorecfg.h"\ - ".\jpegint.h"\ - ".\jpeglib.h"\ - - -.\jdapimin.c : \ - ".\jconfig.h"\ - ".\jerror.h"\ - ".\jinclude.h"\ - ".\jmorecfg.h"\ - ".\jpegint.h"\ - ".\jpeglib.h"\ - - -.\jdapistd.c : \ - ".\jconfig.h"\ - ".\jerror.h"\ - ".\jinclude.h"\ - ".\jmorecfg.h"\ - ".\jpegint.h"\ - ".\jpeglib.h"\ - - -.\jdarith.c : \ - ".\jconfig.h"\ - ".\jerror.h"\ - ".\jinclude.h"\ - ".\jmorecfg.h"\ - ".\jpegint.h"\ - ".\jpeglib.h"\ - - -.\jdatadst.c : \ - ".\jconfig.h"\ - ".\jerror.h"\ - ".\jinclude.h"\ - ".\jmorecfg.h"\ - ".\jpeglib.h"\ - - -.\jdatasrc.c : \ - ".\jconfig.h"\ - ".\jerror.h"\ - ".\jinclude.h"\ - ".\jmorecfg.h"\ - ".\jpeglib.h"\ - - -.\jdcoefct.c : \ - ".\jconfig.h"\ - ".\jerror.h"\ - ".\jinclude.h"\ - ".\jmorecfg.h"\ - ".\jpegint.h"\ - ".\jpeglib.h"\ - - -.\jdcolor.c : \ - ".\jconfig.h"\ - ".\jerror.h"\ - ".\jinclude.h"\ - ".\jmorecfg.h"\ - ".\jpegint.h"\ - ".\jpeglib.h"\ - - -.\jddctmgr.c : \ - ".\jconfig.h"\ - ".\jdct.h"\ - ".\jerror.h"\ - ".\jinclude.h"\ - ".\jmorecfg.h"\ - ".\jpegint.h"\ - ".\jpeglib.h"\ - - -.\jdhuff.c : \ - ".\jconfig.h"\ - ".\jerror.h"\ - ".\jinclude.h"\ - ".\jmorecfg.h"\ - ".\jpegint.h"\ - ".\jpeglib.h"\ - - -.\jdinput.c : \ - ".\jconfig.h"\ - ".\jerror.h"\ - ".\jinclude.h"\ - ".\jmorecfg.h"\ - ".\jpegint.h"\ - ".\jpeglib.h"\ - - -.\jdmainct.c : \ - ".\jconfig.h"\ - ".\jerror.h"\ - ".\jinclude.h"\ - ".\jmorecfg.h"\ - ".\jpegint.h"\ - ".\jpeglib.h"\ - - -.\jdmarker.c : \ - ".\jconfig.h"\ - ".\jerror.h"\ - ".\jinclude.h"\ - ".\jmorecfg.h"\ - ".\jpegint.h"\ - ".\jpeglib.h"\ - - -.\jdmaster.c : \ - ".\jconfig.h"\ - ".\jerror.h"\ - ".\jinclude.h"\ - ".\jmorecfg.h"\ - ".\jpegint.h"\ - ".\jpeglib.h"\ - - -.\jdmerge.c : \ - ".\jconfig.h"\ - ".\jerror.h"\ - ".\jinclude.h"\ - ".\jmorecfg.h"\ - ".\jpegint.h"\ - ".\jpeglib.h"\ - - -.\jdpostct.c : \ - ".\jconfig.h"\ - ".\jerror.h"\ - ".\jinclude.h"\ - ".\jmorecfg.h"\ - ".\jpegint.h"\ - ".\jpeglib.h"\ - - -.\jdsample.c : \ - ".\jconfig.h"\ - ".\jerror.h"\ - ".\jinclude.h"\ - ".\jmorecfg.h"\ - ".\jpegint.h"\ - ".\jpeglib.h"\ - - -.\jdtrans.c : \ - ".\jconfig.h"\ - ".\jerror.h"\ - ".\jinclude.h"\ - ".\jmorecfg.h"\ - ".\jpegint.h"\ - ".\jpeglib.h"\ - - -.\jerror.c : \ - ".\jconfig.h"\ - ".\jerror.h"\ - ".\jinclude.h"\ - ".\jmorecfg.h"\ - ".\jpeglib.h"\ - ".\jversion.h"\ - - -.\jfdctflt.c : \ - ".\jconfig.h"\ - ".\jdct.h"\ - ".\jerror.h"\ - ".\jinclude.h"\ - ".\jmorecfg.h"\ - ".\jpegint.h"\ - ".\jpeglib.h"\ - - -.\jfdctfst.c : \ - ".\jconfig.h"\ - ".\jdct.h"\ - ".\jerror.h"\ - ".\jinclude.h"\ - ".\jmorecfg.h"\ - ".\jpegint.h"\ - ".\jpeglib.h"\ - - -.\jfdctint.c : \ - ".\jconfig.h"\ - ".\jdct.h"\ - ".\jerror.h"\ - ".\jinclude.h"\ - ".\jmorecfg.h"\ - ".\jpegint.h"\ - ".\jpeglib.h"\ - - -.\jidctflt.c : \ - ".\jconfig.h"\ - ".\jdct.h"\ - ".\jerror.h"\ - ".\jinclude.h"\ - ".\jmorecfg.h"\ - ".\jpegint.h"\ - ".\jpeglib.h"\ - - -.\jidctfst.c : \ - ".\jconfig.h"\ - ".\jdct.h"\ - ".\jerror.h"\ - ".\jinclude.h"\ - ".\jmorecfg.h"\ - ".\jpegint.h"\ - ".\jpeglib.h"\ - - -.\jidctint.c : \ - ".\jconfig.h"\ - ".\jdct.h"\ - ".\jerror.h"\ - ".\jinclude.h"\ - ".\jmorecfg.h"\ - ".\jpegint.h"\ - ".\jpeglib.h"\ - - -.\jmemmgr.c : \ - ".\jconfig.h"\ - ".\jerror.h"\ - ".\jinclude.h"\ - ".\jmemsys.h"\ - ".\jmorecfg.h"\ - ".\jpegint.h"\ - ".\jpeglib.h"\ - - -.\jmemnobs.c : \ - ".\jconfig.h"\ - ".\jerror.h"\ - ".\jinclude.h"\ - ".\jmemsys.h"\ - ".\jmorecfg.h"\ - ".\jpegint.h"\ - ".\jpeglib.h"\ - - -.\jquant1.c : \ - ".\jconfig.h"\ - ".\jerror.h"\ - ".\jinclude.h"\ - ".\jmorecfg.h"\ - ".\jpegint.h"\ - ".\jpeglib.h"\ - - -.\jquant2.c : \ - ".\jconfig.h"\ - ".\jerror.h"\ - ".\jinclude.h"\ - ".\jmorecfg.h"\ - ".\jpegint.h"\ - ".\jpeglib.h"\ - - -.\jutils.c : \ - ".\jconfig.h"\ - ".\jerror.h"\ - ".\jinclude.h"\ - ".\jmorecfg.h"\ - ".\jpegint.h"\ - ".\jpeglib.h"\ - diff --git a/jpg/makejdsp.vc6 b/jpg/makejdsp.vc6 deleted file mode 100644 index 2576fc2..0000000 --- a/jpg/makejdsp.vc6 +++ /dev/null @@ -1,285 +0,0 @@ -# Microsoft Developer Studio Project File - Name="jpeg" - Package Owner=<4> -# Microsoft Developer Studio Generated Build File, Format Version 6.00 -# ** NICHT BEARBEITEN ** - -# TARGTYPE "Win32 (x86) Static Library" 0x0104 - -CFG=jpeg - Win32 -!MESSAGE Dies ist kein gültiges Makefile. Zum Erstellen dieses Projekts mit NMAKE -!MESSAGE verwenden Sie den Befehl "Makefile exportieren" und führen Sie den Befehl -!MESSAGE -!MESSAGE NMAKE /f "jpeg.mak". -!MESSAGE -!MESSAGE Sie können beim Ausführen von NMAKE eine Konfiguration angeben -!MESSAGE durch Definieren des Makros CFG in der Befehlszeile. 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-Microsoft Visual Studio Solution File, Format Version 11.00 -# Visual C++ Express 2010 -Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "jpeg", "jpeg.vcxproj", "{019DBD2A-273D-4BA4-BF86-B5EFE2ED76B1}" -EndProject -Global - GlobalSection(SolutionConfigurationPlatforms) = preSolution - Release|Win32 = Release|Win32 - EndGlobalSection - GlobalSection(ProjectConfigurationPlatforms) = postSolution - {019DBD2A-273D-4BA4-BF86-B5EFE2ED76B1}.Release|Win32.ActiveCfg = Release|Win32 - {019DBD2A-273D-4BA4-BF86-B5EFE2ED76B1}.Release|Win32.Build.0 = Release|Win32 - EndGlobalSection - GlobalSection(SolutionProperties) = preSolution - HideSolutionNode = FALSE - EndGlobalSection -EndGlobal diff --git a/jpg/makejvcx.v10 b/jpg/makejvcx.v10 deleted file mode 100644 index c7a898e..0000000 --- a/jpg/makejvcx.v10 +++ /dev/null @@ -1,112 +0,0 @@ - - - - - Release - Win32 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Disabled - false - - - - - {019DBD2A-273D-4BA4-BF86-B5EFE2ED76B1} - Win32Proj - jpeg - - - - StaticLibrary - false - true - Unicode - - - - - - - - - - - - Level3 - NotUsing - Full - true - false - WIN32;NDEBUG;_LIB;_CRT_SECURE_NO_WARNINGS - true - true - - - Windows - true - true - true - - - - - - \ No newline at end of file diff --git a/jpg/makeproj.mac b/jpg/makeproj.mac deleted file mode 100644 index e5b5102..0000000 --- a/jpg/makeproj.mac +++ /dev/null @@ -1,213 +0,0 @@ --- --- makeproj.mac --- --- This AppleScript builds Code Warrior PRO Release 2 project files for the --- libjpeg library as well as the test programs 'cjpeg', 'djpeg', 'jpegtran'. --- (We'd distribute real project files, except they're not text --- and would create maintenance headaches.) --- --- The script then compiles and links the library and the test programs. --- NOTE: if you haven't already created a 'jconfig.h' file, the script --- automatically copies 'jconfig.mac' to 'jconfig.h'. --- --- To use this script, you must have AppleScript 1.1 or later installed --- and a suitable AppleScript editor like Script Editor or Script Debugger --- (http://www.latenightsw.com). Open this file with your AppleScript --- editor and execute the "run" command to build the projects. --- --- Thanks to Dan Sears and Don Agro for this script. --- Questions about this script can be addressed to dogpark@interlog.com --- - -on run - - choose folder with prompt ">>> Select IJG source folder <<<" - set ijg_folder to result - - choose folder with prompt ">>> Select MetroWerks folder <<<" - set cw_folder to result - - -- if jconfig.h doesn't already exist, copy jconfig.mac - - tell application "Finder" - if not (exists file "jconfig.h" of ijg_folder) then - duplicate {file "jconfig.mac" of folder ijg_folder} - select file "jconfig.mac copy" of folder ijg_folder - set name of selection to "jconfig.h" - end if - end tell - - tell application "CodeWarrior IDE 2.1" - with timeout of 10000 seconds - - -- create libjpeg project - - activate - Create Project (ijg_folder as string) & "libjpeg.proj" - Set Preferences of panel "Target Settings" to {Target Name:"libjpeg"} - Set Preferences of panel "PPC Project" to {File Name:"libjpeg"} - Set Preferences of panel "Target Settings" to {Linker:"MacOS PPC Linker"} - Set Preferences of panel "PPC Project" to {Project Type:library} - Set Preferences of panel "C/C++ Compiler" to {ANSI Strict:true} - Set Preferences of panel "C/C++ Compiler" to {Enums Always Ints:true} - Set Preferences of panel "PPC Codegen" to {Struct Alignment:PowerPC} - Set Preferences of panel "PPC Linker" to {Generate SYM File:false} - - Add Files (ijg_folder as string) & "jaricom.c" To Segment 1 - Add Files (ijg_folder as string) & "jcapimin.c" To Segment 1 - Add Files (ijg_folder as string) & "jcapistd.c" To Segment 1 - Add Files (ijg_folder as string) & "jcarith.c" To Segment 1 - Add Files (ijg_folder as string) & "jctrans.c" To Segment 1 - Add Files (ijg_folder as string) & "jcparam.c" To Segment 1 - Add Files (ijg_folder as string) & "jdatadst.c" To Segment 1 - Add Files (ijg_folder as string) & "jcinit.c" To Segment 1 - Add Files (ijg_folder as string) & "jcmaster.c" To Segment 1 - Add Files (ijg_folder as string) & "jcmarker.c" To Segment 1 - Add Files (ijg_folder as string) & "jcmainct.c" To Segment 1 - Add Files (ijg_folder as string) & "jcprepct.c" To Segment 1 - Add Files (ijg_folder as string) & "jccoefct.c" To Segment 1 - Add Files (ijg_folder as string) & "jccolor.c" To Segment 1 - Add Files (ijg_folder as string) & "jcsample.c" To Segment 1 - Add Files (ijg_folder as string) & "jchuff.c" To Segment 1 - Add Files (ijg_folder as string) & "jcdctmgr.c" To Segment 1 - Add Files (ijg_folder as string) & "jfdctfst.c" To Segment 1 - Add Files (ijg_folder as string) & "jfdctflt.c" To Segment 1 - Add Files (ijg_folder as string) & "jfdctint.c" To Segment 1 - Add Files (ijg_folder as string) & "jdapimin.c" To Segment 1 - Add Files (ijg_folder as string) & "jdapistd.c" To Segment 1 - Add Files (ijg_folder as string) & "jdarith.c" To Segment 1 - Add Files (ijg_folder as string) & "jdtrans.c" To Segment 1 - Add Files (ijg_folder as string) & "jdatasrc.c" To Segment 1 - Add Files (ijg_folder as string) & "jdmaster.c" To Segment 1 - Add Files (ijg_folder as string) & "jdinput.c" To Segment 1 - Add Files (ijg_folder as string) & "jdmarker.c" To Segment 1 - Add Files (ijg_folder as string) & "jdhuff.c" To Segment 1 - Add Files (ijg_folder as string) & "jdmainct.c" To Segment 1 - Add Files (ijg_folder as string) & "jdcoefct.c" To Segment 1 - Add Files (ijg_folder as string) & "jdpostct.c" To Segment 1 - Add Files (ijg_folder as string) & "jddctmgr.c" To Segment 1 - Add Files (ijg_folder as string) & "jidctfst.c" To Segment 1 - Add Files (ijg_folder as string) & "jidctflt.c" To Segment 1 - Add Files (ijg_folder as string) & "jidctint.c" To Segment 1 - Add Files (ijg_folder as string) & "jdsample.c" To Segment 1 - Add Files (ijg_folder as string) & "jdcolor.c" To Segment 1 - Add Files (ijg_folder as string) & "jquant1.c" To Segment 1 - Add Files (ijg_folder as string) & "jquant2.c" To Segment 1 - Add Files (ijg_folder as string) & "jdmerge.c" To Segment 1 - Add Files (ijg_folder as string) & "jcomapi.c" To Segment 1 - Add Files (ijg_folder as string) & "jutils.c" To Segment 1 - Add Files (ijg_folder as string) & "jerror.c" To Segment 1 - Add Files (ijg_folder as string) & "jmemmgr.c" To Segment 1 - Add Files (ijg_folder as string) & "jmemmac.c" To Segment 1 - - -- compile and link the library - - Make Project - Close Project - - -- create cjpeg project - - activate - Create Project (ijg_folder as string) & "cjpeg.proj" - Set Preferences of panel "Target Settings" to {Target Name:"cjpeg"} - Set Preferences of panel "PPC Project" to {File Name:"cjpeg"} - Set Preferences of panel "Target Settings" to {Linker:"MacOS PPC Linker"} - Set Preferences of panel "C/C++ Compiler" to {ANSI Strict:true} - Set Preferences of panel "C/C++ Compiler" to {Enums Always Ints:true} - Set Preferences of panel "PPC Codegen" to {Struct Alignment:PowerPC} - Set Preferences of panel "PPC Linker" to {Generate SYM File:false} - - Add Files (ijg_folder as string) & "cjpeg.c" To Segment 1 - Add Files (ijg_folder as string) & "rdppm.c" To Segment 1 - Add Files (ijg_folder as string) & "rdgif.c" To Segment 1 - Add Files (ijg_folder as string) & "rdtarga.c" To Segment 1 - Add Files (ijg_folder as string) & "rdrle.c" To Segment 1 - Add Files (ijg_folder as string) & "rdbmp.c" To Segment 1 - Add Files (ijg_folder as string) & "rdswitch.c" To Segment 1 - Add Files (ijg_folder as string) & "cdjpeg.c" To Segment 1 - - Add Files (ijg_folder as string) & "libjpeg" To Segment 2 - - Add Files (cw_folder as string) & "Metrowerks CodeWarrior:Metrowerks Standard Library:MSL C:Bin:MSL C.PPC.Lib" To Segment 3 - Add Files (cw_folder as string) & "Metrowerks CodeWarrior:Metrowerks Standard Library:MSL C:Bin:MSL SIOUX.PPC.Lib" To Segment 3 - Add Files (cw_folder as string) & "Metrowerks CodeWarrior:MacOS Support:Libraries:Runtime:Runtime PPC:MSL RuntimePPC.Lib" To Segment 3 - - Add Files (cw_folder as string) & "Metrowerks CodeWarrior:MacOS Support:Libraries:MacOS Common:InterfaceLib" To Segment 4 - Add Files (cw_folder as string) & "Metrowerks CodeWarrior:MacOS Support:Libraries:MacOS Common:MathLib" To Segment 4 - - -- compile and link cjpeg - - Make Project - Close Project - - -- create djpeg project - - activate - Create Project (ijg_folder as string) & "djpeg.proj" - Set Preferences of panel "Target Settings" to {Target Name:"djpeg"} - Set Preferences of panel "PPC Project" to {File Name:"djpeg"} - Set Preferences of panel "Target Settings" to {Linker:"MacOS PPC Linker"} - Set Preferences of panel "C/C++ Compiler" to {ANSI Strict:true} - Set Preferences of panel "C/C++ Compiler" to {Enums Always Ints:true} - Set Preferences of panel "PPC Codegen" to {Struct Alignment:PowerPC} - Set Preferences of panel "PPC Linker" to {Generate SYM File:false} - - Add Files (ijg_folder as string) & "djpeg.c" To Segment 1 - Add Files (ijg_folder as string) & "wrppm.c" To Segment 1 - Add Files (ijg_folder as string) & "wrgif.c" To Segment 1 - Add Files (ijg_folder as string) & "wrtarga.c" To Segment 1 - Add Files (ijg_folder as string) & "wrrle.c" To Segment 1 - Add Files (ijg_folder as string) & "wrbmp.c" To Segment 1 - Add Files (ijg_folder as string) & "rdcolmap.c" To Segment 1 - Add Files (ijg_folder as string) & "cdjpeg.c" To Segment 1 - - Add Files (ijg_folder as string) & "libjpeg" To Segment 2 - - Add Files (cw_folder as string) & "Metrowerks CodeWarrior:Metrowerks Standard Library:MSL C:Bin:MSL C.PPC.Lib" To Segment 3 - Add Files (cw_folder as string) & "Metrowerks CodeWarrior:Metrowerks Standard Library:MSL C:Bin:MSL SIOUX.PPC.Lib" To Segment 3 - Add Files (cw_folder as string) & "Metrowerks CodeWarrior:MacOS Support:Libraries:Runtime:Runtime PPC:MSL RuntimePPC.Lib" To Segment 3 - - Add Files (cw_folder as string) & "Metrowerks CodeWarrior:MacOS Support:Libraries:MacOS Common:InterfaceLib" To Segment 4 - Add Files (cw_folder as string) & "Metrowerks CodeWarrior:MacOS Support:Libraries:MacOS Common:MathLib" To Segment 4 - - -- compile and link djpeg - - Make Project - Close Project - - -- create jpegtran project - - activate - Create Project (ijg_folder as string) & "jpegtran.proj" - Set Preferences of panel "Target Settings" to {Target Name:"jpegtran"} - Set Preferences of panel "PPC Project" to {File Name:"jpegtran"} - Set Preferences of panel "Target Settings" to {Linker:"MacOS PPC Linker"} - Set Preferences of panel "C/C++ Compiler" to {ANSI Strict:true} - Set Preferences of panel "C/C++ Compiler" to {Enums Always Ints:true} - Set Preferences of panel "PPC Codegen" to {Struct Alignment:PowerPC} - Set Preferences of panel "PPC Linker" to {Generate SYM File:false} - - Add Files (ijg_folder as string) & "jpegtran.c" To Segment 1 - Add Files (ijg_folder as string) & "rdswitch.c" To Segment 1 - Add Files (ijg_folder as string) & "cdjpeg.c" To Segment 1 - Add Files (ijg_folder as string) & "transupp.c" To Segment 1 - - Add Files (ijg_folder as string) & "libjpeg" To Segment 2 - - Add Files (cw_folder as string) & "Metrowerks CodeWarrior:Metrowerks Standard Library:MSL C:Bin:MSL C.PPC.Lib" To Segment 3 - Add Files (cw_folder as string) & "Metrowerks CodeWarrior:Metrowerks Standard Library:MSL C:Bin:MSL SIOUX.PPC.Lib" To Segment 3 - Add Files (cw_folder as string) & "Metrowerks CodeWarrior:MacOS Support:Libraries:Runtime:Runtime PPC:MSL RuntimePPC.Lib" To Segment 3 - - Add Files (cw_folder as string) & "Metrowerks CodeWarrior:MacOS Support:Libraries:MacOS Common:InterfaceLib" To Segment 4 - Add Files (cw_folder as string) & "Metrowerks CodeWarrior:MacOS Support:Libraries:MacOS Common:MathLib" To Segment 4 - - -- compile and link jpegtran - - Make Project - Close Project - - quit - - end timeout - end tell -end run diff --git a/jpg/makerdep.vc6 b/jpg/makerdep.vc6 deleted file mode 100644 index d2dac9d..0000000 --- a/jpg/makerdep.vc6 +++ /dev/null @@ -1,6 +0,0 @@ -# Microsoft Developer Studio erstellte Abhängigkeitsdatei, einbezogen von rdjpgcom.mak - -.\rdjpgcom.c : \ - ".\jconfig.h"\ - ".\jinclude.h"\ - diff --git a/jpg/makerdsp.vc6 b/jpg/makerdsp.vc6 deleted file mode 100644 index 6efb442..0000000 --- a/jpg/makerdsp.vc6 +++ /dev/null @@ -1,78 +0,0 @@ -# Microsoft Developer Studio Project File - Name="rdjpgcom" - Package Owner=<4> -# Microsoft Developer Studio Generated Build File, Format Version 6.00 -# ** NICHT BEARBEITEN ** - -# TARGTYPE "Win32 (x86) Console Application" 0x0103 - -CFG=rdjpgcom - Win32 -!MESSAGE Dies ist kein gültiges Makefile. Zum Erstellen dieses Projekts mit NMAKE -!MESSAGE verwenden Sie den Befehl "Makefile exportieren" und führen Sie den Befehl -!MESSAGE -!MESSAGE NMAKE /f "rdjpgcom.mak". -!MESSAGE -!MESSAGE Sie können beim Ausführen von NMAKE eine Konfiguration angeben -!MESSAGE durch Definieren des Makros CFG in der Befehlszeile. Zum Beispiel: -!MESSAGE -!MESSAGE NMAKE /f "rdjpgcom.mak" CFG="rdjpgcom - Win32" -!MESSAGE -!MESSAGE Für die Konfiguration stehen zur Auswahl: -!MESSAGE -!MESSAGE "rdjpgcom - Win32" (basierend auf "Win32 (x86) Console Application") -!MESSAGE - -# Begin Project -# PROP AllowPerConfigDependencies 0 -# PROP Scc_ProjName "" -# PROP Scc_LocalPath "" -CPP=cl.exe -RSC=rc.exe -# PROP BASE Use_MFC 0 -# PROP BASE Use_Debug_Libraries 0 -# PROP BASE Output_Dir ".\rdjpgcom\Release" -# PROP BASE Intermediate_Dir ".\rdjpgcom\Release" -# PROP BASE Target_Dir ".\rdjpgcom" -# PROP Use_MFC 0 -# PROP Use_Debug_Libraries 0 -# PROP Output_Dir ".\rdjpgcom\Release" -# PROP Intermediate_Dir ".\rdjpgcom\Release" -# PROP Ignore_Export_Lib 0 -# PROP Target_Dir ".\rdjpgcom" -# ADD BASE CPP /nologo /W3 /GX /O2 /D "WIN32" /D "NDEBUG" /D "_CONSOLE" /YX /c -# ADD CPP /nologo /G6 /MT /W3 /GX /Ox /Oa /Ob2 /D "WIN32" /D "NDEBUG" /D "_CONSOLE" /YX /FD /c -# ADD BASE RSC /l 0x409 /d "NDEBUG" -# ADD RSC /l 0x409 /d "NDEBUG" -BSC32=bscmake.exe -# ADD BASE BSC32 /nologo -# ADD BSC32 /nologo -LINK32=link.exe -# ADD BASE LINK32 kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib /nologo /subsystem:console /machine:I386 -# ADD LINK32 Release\jpeg.lib kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib /nologo /subsystem:console /machine:I386 -# Begin Target - -# Name "rdjpgcom - Win32" -# Begin Group "Quellcodedateien" - -# PROP Default_Filter "cpp;c;cxx;rc;def;r;odl;idl;hpj;bat;for;f90" -# Begin Source File - -SOURCE=.\rdjpgcom.c -# End Source File -# End Group -# Begin Group "Header-Dateien" - -# PROP Default_Filter "h;hpp;hxx;hm;inl;fi;fd" -# Begin Source File - -SOURCE=.\jconfig.h -# End Source File -# Begin Source File - -SOURCE=.\jinclude.h -# End Source File -# End Group -# Begin Group "Ressourcendateien" - -# PROP Default_Filter "ico;cur;bmp;dlg;rc2;rct;bin;cnt;rtf;gif;jpg;jpeg;jpe" -# End Group -# End Target -# End Project diff --git a/jpg/makerfil.v10 b/jpg/makerfil.v10 deleted file mode 100644 index 4660d49..0000000 --- a/jpg/makerfil.v10 +++ /dev/null @@ -1,30 +0,0 @@ - - - - - {4FC737F1-C7A5-4376-A066-2A32D752A2FF} - cpp;c;cc;cxx;def;odl;idl;hpj;bat;asm;asmx - - - {93995380-89BD-4b04-88EB-625FBE52EBFB} - h;hpp;hxx;hm;inl;inc;xsd - - - {67DA6AB6-F800-4c08-8B7A-83BB121AAD01} - rc;ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe;resx;tiff;tif;png;wav;mfcribbon-ms - - - - - Header Files - - - Header Files - - - - - Source Files - - - \ No newline at end of file diff --git a/jpg/makermak.vc6 b/jpg/makermak.vc6 deleted file mode 100644 index b54ea7d..0000000 --- a/jpg/makermak.vc6 +++ /dev/null @@ -1,110 +0,0 @@ -# Microsoft Developer Studio Generated NMAKE File, Based on rdjpgcom.dsp -!IF "$(CFG)" == "" -CFG=rdjpgcom - Win32 -!MESSAGE Keine Konfiguration angegeben. rdjpgcom - Win32 wird als Standard verwendet. -!ENDIF - -!IF "$(CFG)" != "rdjpgcom - Win32" -!MESSAGE Ungltige Konfiguration "$(CFG)" angegeben. -!MESSAGE Sie k”nnen beim Ausfhren von NMAKE eine Konfiguration angeben -!MESSAGE durch Definieren des Makros CFG in der Befehlszeile. Zum Beispiel: -!MESSAGE -!MESSAGE NMAKE /f "rdjpgcom.mak" CFG="rdjpgcom - Win32" -!MESSAGE -!MESSAGE Fr die Konfiguration stehen zur Auswahl: -!MESSAGE -!MESSAGE "rdjpgcom - Win32" (basierend auf "Win32 (x86) Console Application") -!MESSAGE -!ERROR Eine ungltige Konfiguration wurde angegeben. -!ENDIF - -!IF "$(OS)" == "Windows_NT" -NULL= -!ELSE -NULL=nul -!ENDIF - -CPP=cl.exe -RSC=rc.exe -OUTDIR=.\rdjpgcom\Release -INTDIR=.\rdjpgcom\Release -# Begin Custom Macros -OutDir=.\rdjpgcom\Release -# End Custom Macros - -ALL : "$(OUTDIR)\rdjpgcom.exe" - - -CLEAN : - -@erase "$(INTDIR)\rdjpgcom.obj" - -@erase "$(INTDIR)\vc60.idb" - -@erase "$(OUTDIR)\rdjpgcom.exe" - -"$(OUTDIR)" : - if not exist "$(OUTDIR)/$(NULL)" mkdir "$(OUTDIR)" - -BSC32=bscmake.exe -BSC32_FLAGS=/nologo /o"$(OUTDIR)\rdjpgcom.bsc" -BSC32_SBRS= \ - -LINK32=link.exe -LINK32_FLAGS=Release\jpeg.lib kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib /nologo /subsystem:console /incremental:no /pdb:"$(OUTDIR)\rdjpgcom.pdb" /machine:I386 /out:"$(OUTDIR)\rdjpgcom.exe" -LINK32_OBJS= \ - "$(INTDIR)\rdjpgcom.obj" - -"$(OUTDIR)\rdjpgcom.exe" : "$(OUTDIR)" $(DEF_FILE) $(LINK32_OBJS) - $(LINK32) @<< - $(LINK32_FLAGS) $(LINK32_OBJS) -<< - -CPP_PROJ=/nologo /G6 /MT /W3 /GX /Ox /Oa /Ob2 /D "WIN32" /D "NDEBUG" /D "_CONSOLE" /Fp"$(INTDIR)\rdjpgcom.pch" /YX /Fo"$(INTDIR)\\" /Fd"$(INTDIR)\\" /FD /c - -.c{$(INTDIR)}.obj:: - $(CPP) @<< - $(CPP_PROJ) $< -<< - -.cpp{$(INTDIR)}.obj:: - $(CPP) @<< - $(CPP_PROJ) $< -<< - -.cxx{$(INTDIR)}.obj:: - $(CPP) @<< - $(CPP_PROJ) $< -<< - -.c{$(INTDIR)}.sbr:: - $(CPP) @<< - $(CPP_PROJ) $< -<< - -.cpp{$(INTDIR)}.sbr:: - $(CPP) @<< - $(CPP_PROJ) $< -<< - -.cxx{$(INTDIR)}.sbr:: - $(CPP) @<< - $(CPP_PROJ) $< -<< - - -!IF "$(NO_EXTERNAL_DEPS)" != "1" -!IF EXISTS("rdjpgcom.dep") -!INCLUDE "rdjpgcom.dep" -!ELSE -!MESSAGE Warning: cannot find "rdjpgcom.dep" -!ENDIF -!ENDIF - - -!IF "$(CFG)" == "rdjpgcom - Win32" -SOURCE=.\rdjpgcom.c - -"$(INTDIR)\rdjpgcom.obj" : $(SOURCE) "$(INTDIR)" - - - -!ENDIF - diff --git a/jpg/makervcx.v10 b/jpg/makervcx.v10 deleted file mode 100644 index f34017f..0000000 --- a/jpg/makervcx.v10 +++ /dev/null @@ -1,62 +0,0 @@ - - - - - Release - Win32 - - - - {C81513DB-78DC-46BC-BC98-82E745203976} - Win32Proj - rdjpgcom - - - - Application - false - true - Unicode - - - - - - - - - - false - $(ProjectName)\$(Configuration)\ - $(ProjectName)\$(Configuration)\ - - - - Level3 - NotUsing - Full - true - false - WIN32;NDEBUG;_CONSOLE;_CRT_SECURE_NO_WARNINGS - true - true - 4996 - - - Console - true - true - true - - - - - - - - - - - - - \ No newline at end of file diff --git a/jpg/maketdep.vc6 b/jpg/maketdep.vc6 deleted file mode 100644 index acebae9..0000000 --- a/jpg/maketdep.vc6 +++ /dev/null @@ -1,43 +0,0 @@ -# Microsoft Developer Studio erstellte Abhängigkeitsdatei, einbezogen von jpegtran.mak - -.\cdjpeg.c : \ - ".\cderror.h"\ - ".\cdjpeg.h"\ - ".\jconfig.h"\ - ".\jerror.h"\ - ".\jinclude.h"\ - ".\jmorecfg.h"\ - ".\jpeglib.h"\ - - -.\jpegtran.c : \ - ".\cderror.h"\ - ".\cdjpeg.h"\ - ".\jconfig.h"\ - ".\jerror.h"\ - ".\jinclude.h"\ - ".\jmorecfg.h"\ - ".\jpeglib.h"\ - ".\jversion.h"\ - ".\transupp.h"\ - - -.\rdswitch.c : \ - ".\cderror.h"\ - ".\cdjpeg.h"\ - ".\jconfig.h"\ - ".\jerror.h"\ - ".\jinclude.h"\ - ".\jmorecfg.h"\ - ".\jpeglib.h"\ - - -.\transupp.c : \ - ".\jconfig.h"\ - ".\jerror.h"\ - ".\jinclude.h"\ - ".\jmorecfg.h"\ - ".\jpegint.h"\ - ".\jpeglib.h"\ - ".\transupp.h"\ - diff --git a/jpg/maketdsp.vc6 b/jpg/maketdsp.vc6 deleted file mode 100644 index 42e7312..0000000 --- a/jpg/maketdsp.vc6 +++ /dev/null @@ -1,122 +0,0 @@ -# Microsoft Developer Studio Project File - Name="jpegtran" - Package Owner=<4> -# Microsoft Developer Studio Generated Build File, Format Version 6.00 -# ** NICHT BEARBEITEN ** - -# TARGTYPE "Win32 (x86) Console Application" 0x0103 - -CFG=jpegtran - Win32 -!MESSAGE Dies ist kein gültiges Makefile. 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Setzepfandt, and Guido Vollbeding. -; -; To use this file, rename it to libjpeg.prj. -; Read installation instructions before trying to make the program! -; -; -; * * * Output file * * * -libjpeg.lib -; -; * * * COMPILER OPTIONS * * * -.C[-P] ; absolute calls -.C[-M] ; and no string merging, folks -.C[-w-cln] ; no "constant is long" warnings -.C[-w-par] ; no "parameter xxxx unused" -.C[-w-rch] ; no "unreachable code" -.C[-wsig] ; warn if significant digits may be lost -.L[-J] ; link new Obj-format (so we get a library) -= -; * * * * List of modules * * * * -jaricom.c (jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jpegint.h,jerror.h) -jcapimin.c (jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jpegint.h,jerror.h) -jcapistd.c (jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jpegint.h,jerror.h) -jcarith.c (jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jpegint.h,jerror.h) -jccoefct.c (jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jpegint.h,jerror.h) -jccolor.c (jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jpegint.h,jerror.h) -jcdctmgr.c (jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jpegint.h,jerror.h,jdct.h) -jchuff.c (jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jpegint.h,jerror.h) -jcinit.c (jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jpegint.h,jerror.h) -jcmainct.c (jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jpegint.h,jerror.h) -jcmarker.c (jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jpegint.h,jerror.h) -jcmaster.c (jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jpegint.h,jerror.h) -jcomapi.c (jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jpegint.h,jerror.h) -jcparam.c (jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jpegint.h,jerror.h) -jcprepct.c (jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jpegint.h,jerror.h) -jcsample.c (jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jpegint.h,jerror.h) -jctrans.c (jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jpegint.h,jerror.h) -jdapimin.c (jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jpegint.h,jerror.h) -jdapistd.c (jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jpegint.h,jerror.h) -jdarith.c (jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jpegint.h,jerror.h) -jdatadst.c (jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jerror.h) -jdatasrc.c (jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jerror.h) -jdcoefct.c (jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jpegint.h,jerror.h) -jdcolor.c (jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jpegint.h,jerror.h) -jddctmgr.c (jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jpegint.h,jerror.h,jdct.h) -jdhuff.c (jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jpegint.h,jerror.h) -jdinput.c (jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jpegint.h,jerror.h) -jdmainct.c (jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jpegint.h,jerror.h) -jdmarker.c (jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jpegint.h,jerror.h) -jdmaster.c (jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jpegint.h,jerror.h) -jdmerge.c (jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jpegint.h,jerror.h) -jdpostct.c (jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jpegint.h,jerror.h) -jdsample.c (jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jpegint.h,jerror.h) -jdtrans.c (jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jpegint.h,jerror.h) -jerror.c (jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jversion.h,jerror.h) -jfdctflt.c (jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jpegint.h,jerror.h,jdct.h) -jfdctfst.c (jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jpegint.h,jerror.h,jdct.h) -jfdctint.c (jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jpegint.h,jerror.h,jdct.h) -jidctflt.c (jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jpegint.h,jerror.h,jdct.h) -jidctfst.c (jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jpegint.h,jerror.h,jdct.h) -jidctint.c (jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jpegint.h,jerror.h,jdct.h) -jquant1.c (jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jpegint.h,jerror.h) -jquant2.c (jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jpegint.h,jerror.h) -jutils.c (jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jpegint.h,jerror.h) -jmemmgr.c (jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jpegint.h,jerror.h,jmemsys.h) -jmemansi.c (jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jpegint.h,jerror.h,jmemsys.h) diff --git a/jpg/maktjpeg.st b/jpg/maktjpeg.st deleted file mode 100644 index 43f078a..0000000 --- a/jpg/maktjpeg.st +++ /dev/null @@ -1,30 +0,0 @@ -; Project file for Independent JPEG Group's software -; -; This project file is for Atari ST/STE/TT systems using Pure C or Turbo C. -; Thanks to Frank Moehle, B. Setzepfandt, and Guido Vollbeding. -; -; To use this file, rename it to jpegtran.prj. -; If you are using Turbo C, change filenames beginning with "pc..." to "tc..." -; Read installation instructions before trying to make the program! -; -; -; * * * Output file * * * -jpegtran.ttp -; -; * * * COMPILER OPTIONS * * * -.C[-P] ; absolute calls -.C[-M] ; and no string merging, folks -.C[-w-cln] ; no "constant is long" warnings -.C[-w-par] ; no "parameter xxxx unused" -.C[-w-rch] ; no "unreachable code" -.C[-wsig] ; warn if significant digits may be lost -= -; * * * * List of modules * * * * -pcstart.o -jpegtran.c (cdjpeg.h,jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jerror.h,cderror.h,transupp.h,jversion.h) -cdjpeg.c (cdjpeg.h,jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jerror.h,cderror.h) -rdswitch.c (cdjpeg.h,jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jerror.h,cderror.h) -transupp.c (jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jpegint.h,jerror.h,transupp.h) -libjpeg.lib ; built by libjpeg.prj -pcstdlib.lib ; standard library -pcextlib.lib ; extended library diff --git a/jpg/makvms.opt b/jpg/makvms.opt deleted file mode 100644 index 675e8fe..0000000 --- a/jpg/makvms.opt +++ /dev/null @@ -1,4 +0,0 @@ -! A pointer to the VAX/VMS C Run-Time Shareable Library. -! This file is needed by makefile.mms and makefile.vms, -! but only for the older VAX C compiler. DEC C does not need it. -Sys$Library:VAXCRTL.EXE /Share diff --git a/jpg/missing b/jpg/missing deleted file mode 100644 index 28055d2..0000000 --- a/jpg/missing +++ /dev/null @@ -1,376 +0,0 @@ -#! /bin/sh -# Common stub for a few missing GNU programs while installing. - -scriptversion=2009-04-28.21; # UTC - -# Copyright (C) 1996, 1997, 1999, 2000, 2002, 2003, 2004, 2005, 2006, -# 2008, 2009 Free Software Foundation, Inc. -# Originally by Fran,cois Pinard , 1996. - -# This program is free software; you can redistribute it and/or modify -# it under the terms of the GNU General Public License as published by -# the Free Software Foundation; either version 2, or (at your option) -# any later version. - -# This program is distributed in the hope that it will be useful, -# but WITHOUT ANY WARRANTY; without even the implied warranty of -# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 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Check the \`README' file, - it often tells you about the needed prerequisites for installing - this package. You may also peek at any GNU archive site, in case - some other package would contain this missing \`$1' program." - exit 1 - ;; -esac - -exit 0 - -# Local variables: -# eval: (add-hook 'write-file-hooks 'time-stamp) -# time-stamp-start: "scriptversion=" -# time-stamp-format: "%:y-%02m-%02d.%02H" -# time-stamp-time-zone: "UTC" -# time-stamp-end: "; # UTC" -# End: diff --git a/jpg/rdbmp.c b/jpg/rdbmp.c deleted file mode 100644 index fd773d4..0000000 --- a/jpg/rdbmp.c +++ /dev/null @@ -1,480 +0,0 @@ -/* - * rdbmp.c - * - * Copyright (C) 1994-1996, Thomas G. Lane. - * Modified 2009-2010 by Guido Vollbeding. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file contains routines to read input images in Microsoft "BMP" - * format (MS Windows 3.x, OS/2 1.x, and OS/2 2.x flavors). - * Currently, only 8-bit and 24-bit images are supported, not 1-bit or - * 4-bit (feeding such low-depth images into JPEG would be silly anyway). - * Also, we don't support RLE-compressed files. - * - * These routines may need modification for non-Unix environments or - * specialized applications. As they stand, they assume input from - * an ordinary stdio stream. They further assume that reading begins - * at the start of the file; start_input may need work if the - * user interface has already read some data (e.g., to determine that - * the file is indeed BMP format). - * - * This code contributed by James Arthur Boucher. - */ - -#include "cdjpeg.h" /* Common decls for cjpeg/djpeg applications */ - -#ifdef BMP_SUPPORTED - - -/* Macros to deal with unsigned chars as efficiently as compiler allows */ - -#ifdef HAVE_UNSIGNED_CHAR -typedef unsigned char U_CHAR; -#define UCH(x) ((int) (x)) -#else /* !HAVE_UNSIGNED_CHAR */ -#ifdef CHAR_IS_UNSIGNED -typedef char U_CHAR; -#define UCH(x) ((int) (x)) -#else -typedef char U_CHAR; -#define UCH(x) ((int) (x) & 0xFF) -#endif -#endif /* HAVE_UNSIGNED_CHAR */ - - -#define ReadOK(file,buffer,len) (JFREAD(file,buffer,len) == ((size_t) (len))) - - -/* Private version of data source object */ - -typedef struct _bmp_source_struct * bmp_source_ptr; - -typedef struct _bmp_source_struct { - struct cjpeg_source_struct pub; /* public fields */ - - j_compress_ptr cinfo; /* back link saves passing separate parm */ - - JSAMPARRAY colormap; /* BMP colormap (converted to my format) */ - - jvirt_sarray_ptr whole_image; /* Needed to reverse row order */ - JDIMENSION source_row; /* Current source row number */ - JDIMENSION row_width; /* Physical width of scanlines in file */ - - int bits_per_pixel; /* remembers 8- or 24-bit format */ -} bmp_source_struct; - - -LOCAL(int) -read_byte (bmp_source_ptr sinfo) -/* Read next byte from BMP file */ -{ - register FILE *infile = sinfo->pub.input_file; - register int c; - - if ((c = getc(infile)) == EOF) - ERREXIT(sinfo->cinfo, JERR_INPUT_EOF); - return c; -} - - -LOCAL(void) -read_colormap (bmp_source_ptr sinfo, int cmaplen, int mapentrysize) -/* Read the colormap from a BMP file */ -{ - int i; - - switch (mapentrysize) { - case 3: - /* BGR format (occurs in OS/2 files) */ - for (i = 0; i < cmaplen; i++) { - sinfo->colormap[2][i] = (JSAMPLE) read_byte(sinfo); - sinfo->colormap[1][i] = (JSAMPLE) read_byte(sinfo); - sinfo->colormap[0][i] = (JSAMPLE) read_byte(sinfo); - } - break; - case 4: - /* BGR0 format (occurs in MS Windows files) */ - for (i = 0; i < cmaplen; i++) { - sinfo->colormap[2][i] = (JSAMPLE) read_byte(sinfo); - sinfo->colormap[1][i] = (JSAMPLE) read_byte(sinfo); - sinfo->colormap[0][i] = (JSAMPLE) read_byte(sinfo); - (void) read_byte(sinfo); - } - break; - default: - ERREXIT(sinfo->cinfo, JERR_BMP_BADCMAP); - break; - } -} - - -/* - * Read one row of pixels. - * The image has been read into the whole_image array, but is otherwise - * unprocessed. We must read it out in top-to-bottom row order, and if - * it is an 8-bit image, we must expand colormapped pixels to 24bit format. - */ - -METHODDEF(JDIMENSION) -get_8bit_row (j_compress_ptr cinfo, cjpeg_source_ptr sinfo) -/* This version is for reading 8-bit colormap indexes */ -{ - bmp_source_ptr source = (bmp_source_ptr) sinfo; - register JSAMPARRAY colormap = source->colormap; - JSAMPARRAY image_ptr; - register int t; - register JSAMPROW inptr, outptr; - register JDIMENSION col; - - /* Fetch next row from virtual array */ - source->source_row--; - image_ptr = (*cinfo->mem->access_virt_sarray) - ((j_common_ptr) cinfo, source->whole_image, - source->source_row, (JDIMENSION) 1, FALSE); - - /* Expand the colormap indexes to real data */ - inptr = image_ptr[0]; - outptr = source->pub.buffer[0]; - for (col = cinfo->image_width; col > 0; col--) { - t = GETJSAMPLE(*inptr++); - *outptr++ = colormap[0][t]; /* can omit GETJSAMPLE() safely */ - *outptr++ = colormap[1][t]; - *outptr++ = colormap[2][t]; - } - - return 1; -} - - -METHODDEF(JDIMENSION) -get_24bit_row (j_compress_ptr cinfo, cjpeg_source_ptr sinfo) -/* This version is for reading 24-bit pixels */ -{ - bmp_source_ptr source = (bmp_source_ptr) sinfo; - JSAMPARRAY image_ptr; - register JSAMPROW inptr, outptr; - register JDIMENSION col; - - /* Fetch next row from virtual array */ - source->source_row--; - image_ptr = (*cinfo->mem->access_virt_sarray) - ((j_common_ptr) cinfo, source->whole_image, - source->source_row, (JDIMENSION) 1, FALSE); - - /* Transfer data. Note source values are in BGR order - * (even though Microsoft's own documents say the opposite). - */ - inptr = image_ptr[0]; - outptr = source->pub.buffer[0]; - for (col = cinfo->image_width; col > 0; col--) { - outptr[2] = *inptr++; /* can omit GETJSAMPLE() safely */ - outptr[1] = *inptr++; - outptr[0] = *inptr++; - outptr += 3; - } - - return 1; -} - - -METHODDEF(JDIMENSION) -get_32bit_row (j_compress_ptr cinfo, cjpeg_source_ptr sinfo) -/* This version is for reading 32-bit pixels */ -{ - bmp_source_ptr source = (bmp_source_ptr) sinfo; - JSAMPARRAY image_ptr; - register JSAMPROW inptr, outptr; - register JDIMENSION col; - - /* Fetch next row from virtual array */ - source->source_row--; - image_ptr = (*cinfo->mem->access_virt_sarray) - ((j_common_ptr) cinfo, source->whole_image, - source->source_row, (JDIMENSION) 1, FALSE); - /* Transfer data. Note source values are in BGR order - * (even though Microsoft's own documents say the opposite). - */ - inptr = image_ptr[0]; - outptr = source->pub.buffer[0]; - for (col = cinfo->image_width; col > 0; col--) { - outptr[2] = *inptr++; /* can omit GETJSAMPLE() safely */ - outptr[1] = *inptr++; - outptr[0] = *inptr++; - inptr++; /* skip the 4th byte (Alpha channel) */ - outptr += 3; - } - - return 1; -} - - -/* - * This method loads the image into whole_image during the first call on - * get_pixel_rows. The get_pixel_rows pointer is then adjusted to call - * get_8bit_row, get_24bit_row, or get_32bit_row on subsequent calls. - */ - -METHODDEF(JDIMENSION) -preload_image (j_compress_ptr cinfo, cjpeg_source_ptr sinfo) -{ - bmp_source_ptr source = (bmp_source_ptr) sinfo; - register FILE *infile = source->pub.input_file; - register int c; - register JSAMPROW out_ptr; - JSAMPARRAY image_ptr; - JDIMENSION row, col; - cd_progress_ptr progress = (cd_progress_ptr) cinfo->progress; - - /* Read the data into a virtual array in input-file row order. */ - for (row = 0; row < cinfo->image_height; row++) { - if (progress != NULL) { - progress->pub.pass_counter = (long) row; - progress->pub.pass_limit = (long) cinfo->image_height; - (*progress->pub.progress_monitor) ((j_common_ptr) cinfo); - } - image_ptr = (*cinfo->mem->access_virt_sarray) - ((j_common_ptr) cinfo, source->whole_image, - row, (JDIMENSION) 1, TRUE); - out_ptr = image_ptr[0]; - for (col = source->row_width; col > 0; col--) { - /* inline copy of read_byte() for speed */ - if ((c = getc(infile)) == EOF) - ERREXIT(cinfo, JERR_INPUT_EOF); - *out_ptr++ = (JSAMPLE) c; - } - } - if (progress != NULL) - progress->completed_extra_passes++; - - /* Set up to read from the virtual array in top-to-bottom order */ - switch (source->bits_per_pixel) { - case 8: - source->pub.get_pixel_rows = get_8bit_row; - break; - case 24: - source->pub.get_pixel_rows = get_24bit_row; - break; - case 32: - source->pub.get_pixel_rows = get_32bit_row; - break; - default: - ERREXIT(cinfo, JERR_BMP_BADDEPTH); - } - source->source_row = cinfo->image_height; - - /* And read the first row */ - return (*source->pub.get_pixel_rows) (cinfo, sinfo); -} - - -/* - * Read the file header; return image size and component count. - */ - -METHODDEF(void) -start_input_bmp (j_compress_ptr cinfo, cjpeg_source_ptr sinfo) -{ - bmp_source_ptr source = (bmp_source_ptr) sinfo; - U_CHAR bmpfileheader[14]; - U_CHAR bmpinfoheader[64]; -#define GET_2B(array,offset) ((unsigned int) UCH(array[offset]) + \ - (((unsigned int) UCH(array[offset+1])) << 8)) -#define GET_4B(array,offset) ((INT32) UCH(array[offset]) + \ - (((INT32) UCH(array[offset+1])) << 8) + \ - (((INT32) UCH(array[offset+2])) << 16) + \ - (((INT32) UCH(array[offset+3])) << 24)) - INT32 bfOffBits; - INT32 headerSize; - INT32 biWidth; - INT32 biHeight; - unsigned int biPlanes; - INT32 biCompression; - INT32 biXPelsPerMeter,biYPelsPerMeter; - INT32 biClrUsed = 0; - int mapentrysize = 0; /* 0 indicates no colormap */ - INT32 bPad; - JDIMENSION row_width; - - /* Read and verify the bitmap file header */ - if (! ReadOK(source->pub.input_file, bmpfileheader, 14)) - ERREXIT(cinfo, JERR_INPUT_EOF); - if (GET_2B(bmpfileheader,0) != 0x4D42) /* 'BM' */ - ERREXIT(cinfo, JERR_BMP_NOT); - bfOffBits = (INT32) GET_4B(bmpfileheader,10); - /* We ignore the remaining fileheader fields */ - - /* The infoheader might be 12 bytes (OS/2 1.x), 40 bytes (Windows), - * or 64 bytes (OS/2 2.x). Check the first 4 bytes to find out which. - */ - if (! ReadOK(source->pub.input_file, bmpinfoheader, 4)) - ERREXIT(cinfo, JERR_INPUT_EOF); - headerSize = (INT32) GET_4B(bmpinfoheader,0); - if (headerSize < 12 || headerSize > 64) - ERREXIT(cinfo, JERR_BMP_BADHEADER); - if (! ReadOK(source->pub.input_file, bmpinfoheader+4, headerSize-4)) - ERREXIT(cinfo, JERR_INPUT_EOF); - - switch ((int) headerSize) { - case 12: - /* Decode OS/2 1.x header (Microsoft calls this a BITMAPCOREHEADER) */ - biWidth = (INT32) GET_2B(bmpinfoheader,4); - biHeight = (INT32) GET_2B(bmpinfoheader,6); - biPlanes = GET_2B(bmpinfoheader,8); - source->bits_per_pixel = (int) GET_2B(bmpinfoheader,10); - - switch (source->bits_per_pixel) { - case 8: /* colormapped image */ - mapentrysize = 3; /* OS/2 uses RGBTRIPLE colormap */ - TRACEMS2(cinfo, 1, JTRC_BMP_OS2_MAPPED, (int) biWidth, (int) biHeight); - break; - case 24: /* RGB image */ - TRACEMS2(cinfo, 1, JTRC_BMP_OS2, (int) biWidth, (int) biHeight); - break; - default: - ERREXIT(cinfo, JERR_BMP_BADDEPTH); - break; - } - break; - case 40: - case 64: - /* Decode Windows 3.x header (Microsoft calls this a BITMAPINFOHEADER) */ - /* or OS/2 2.x header, which has additional fields that we ignore */ - biWidth = GET_4B(bmpinfoheader,4); - biHeight = GET_4B(bmpinfoheader,8); - biPlanes = GET_2B(bmpinfoheader,12); - source->bits_per_pixel = (int) GET_2B(bmpinfoheader,14); - biCompression = GET_4B(bmpinfoheader,16); - biXPelsPerMeter = GET_4B(bmpinfoheader,24); - biYPelsPerMeter = GET_4B(bmpinfoheader,28); - biClrUsed = GET_4B(bmpinfoheader,32); - /* biSizeImage, biClrImportant fields are ignored */ - - switch (source->bits_per_pixel) { - case 8: /* colormapped image */ - mapentrysize = 4; /* Windows uses RGBQUAD colormap */ - TRACEMS2(cinfo, 1, JTRC_BMP_MAPPED, (int) biWidth, (int) biHeight); - break; - case 24: /* RGB image */ - TRACEMS2(cinfo, 1, JTRC_BMP, (int) biWidth, (int) biHeight); - break; - case 32: /* RGB image + Alpha channel */ - TRACEMS2(cinfo, 1, JTRC_BMP, (int) biWidth, (int) biHeight); - break; - default: - ERREXIT(cinfo, JERR_BMP_BADDEPTH); - break; - } - if (biCompression != 0) - ERREXIT(cinfo, JERR_BMP_COMPRESSED); - - if (biXPelsPerMeter > 0 && biYPelsPerMeter > 0) { - /* Set JFIF density parameters from the BMP data */ - cinfo->X_density = (UINT16) (biXPelsPerMeter/100); /* 100 cm per meter */ - cinfo->Y_density = (UINT16) (biYPelsPerMeter/100); - cinfo->density_unit = 2; /* dots/cm */ - } - break; - default: - ERREXIT(cinfo, JERR_BMP_BADHEADER); - return; - } - - if (biWidth <= 0 || biHeight <= 0) - ERREXIT(cinfo, JERR_BMP_EMPTY); - if (biPlanes != 1) - ERREXIT(cinfo, JERR_BMP_BADPLANES); - - /* Compute distance to bitmap data --- will adjust for colormap below */ - bPad = bfOffBits - (headerSize + 14); - - /* Read the colormap, if any */ - if (mapentrysize > 0) { - if (biClrUsed <= 0) - biClrUsed = 256; /* assume it's 256 */ - else if (biClrUsed > 256) - ERREXIT(cinfo, JERR_BMP_BADCMAP); - /* Allocate space to store the colormap */ - source->colormap = (*cinfo->mem->alloc_sarray) - ((j_common_ptr) cinfo, JPOOL_IMAGE, - (JDIMENSION) biClrUsed, (JDIMENSION) 3); - /* and read it from the file */ - read_colormap(source, (int) biClrUsed, mapentrysize); - /* account for size of colormap */ - bPad -= biClrUsed * mapentrysize; - } - - /* Skip any remaining pad bytes */ - if (bPad < 0) /* incorrect bfOffBits value? */ - ERREXIT(cinfo, JERR_BMP_BADHEADER); - while (--bPad >= 0) { - (void) read_byte(source); - } - - /* Compute row width in file, including padding to 4-byte boundary */ - if (source->bits_per_pixel == 24) - row_width = (JDIMENSION) (biWidth * 3); - else if (source->bits_per_pixel == 32) - row_width = (JDIMENSION) (biWidth * 4); - else - row_width = (JDIMENSION) biWidth; - while ((row_width & 3) != 0) row_width++; - source->row_width = row_width; - - /* Allocate space for inversion array, prepare for preload pass */ - source->whole_image = (*cinfo->mem->request_virt_sarray) - ((j_common_ptr) cinfo, JPOOL_IMAGE, FALSE, - row_width, (JDIMENSION) biHeight, (JDIMENSION) 1); - source->pub.get_pixel_rows = preload_image; - if (cinfo->progress != NULL) { - cd_progress_ptr progress = (cd_progress_ptr) cinfo->progress; - progress->total_extra_passes++; /* count file input as separate pass */ - } - - /* Allocate one-row buffer for returned data */ - source->pub.buffer = (*cinfo->mem->alloc_sarray) - ((j_common_ptr) cinfo, JPOOL_IMAGE, - (JDIMENSION) (biWidth * 3), (JDIMENSION) 1); - source->pub.buffer_height = 1; - - cinfo->in_color_space = JCS_RGB; - cinfo->input_components = 3; - cinfo->data_precision = 8; - cinfo->image_width = (JDIMENSION) biWidth; - cinfo->image_height = (JDIMENSION) biHeight; -} - - -/* - * Finish up at the end of the file. - */ - -METHODDEF(void) -finish_input_bmp (j_compress_ptr cinfo, cjpeg_source_ptr sinfo) -{ - /* no work */ -} - - -/* - * The module selection routine for BMP format input. - */ - -GLOBAL(cjpeg_source_ptr) -jinit_read_bmp (j_compress_ptr cinfo) -{ - bmp_source_ptr source; - - /* Create module interface object */ - source = (bmp_source_ptr) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - SIZEOF(bmp_source_struct)); - source->cinfo = cinfo; /* make back link for subroutines */ - /* Fill in method ptrs, except get_pixel_rows which start_input sets */ - source->pub.start_input = start_input_bmp; - source->pub.finish_input = finish_input_bmp; - - return (cjpeg_source_ptr) source; -} - -#endif /* BMP_SUPPORTED */ diff --git a/jpg/rdcolmap.c b/jpg/rdcolmap.c deleted file mode 100644 index 42b3437..0000000 --- a/jpg/rdcolmap.c +++ /dev/null @@ -1,253 +0,0 @@ -/* - * rdcolmap.c - * - * Copyright (C) 1994-1996, Thomas G. Lane. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file implements djpeg's "-map file" switch. It reads a source image - * and constructs a colormap to be supplied to the JPEG decompressor. - * - * Currently, these file formats are supported for the map file: - * GIF: the contents of the GIF's global colormap are used. - * PPM (either text or raw flavor): the entire file is read and - * each unique pixel value is entered in the map. - * Note that reading a large PPM file will be horrendously slow. - * Typically, a PPM-format map file should contain just one pixel - * of each desired color. Such a file can be extracted from an - * ordinary image PPM file with ppmtomap(1). - * - * Rescaling a PPM that has a maxval unequal to MAXJSAMPLE is not - * currently implemented. - */ - -#include "cdjpeg.h" /* Common decls for cjpeg/djpeg applications */ - -#ifdef QUANT_2PASS_SUPPORTED /* otherwise can't quantize to supplied map */ - -/* Portions of this code are based on the PBMPLUS library, which is: -** -** Copyright (C) 1988 by Jef Poskanzer. -** -** Permission to use, copy, modify, and distribute this software and its -** documentation for any purpose and without fee is hereby granted, provided -** that the above copyright notice appear in all copies and that both that -** copyright notice and this permission notice appear in supporting -** documentation. This software is provided "as is" without express or -** implied warranty. -*/ - - -/* - * Add a (potentially) new color to the color map. - */ - -LOCAL(void) -add_map_entry (j_decompress_ptr cinfo, int R, int G, int B) -{ - JSAMPROW colormap0 = cinfo->colormap[0]; - JSAMPROW colormap1 = cinfo->colormap[1]; - JSAMPROW colormap2 = cinfo->colormap[2]; - int ncolors = cinfo->actual_number_of_colors; - int index; - - /* Check for duplicate color. */ - for (index = 0; index < ncolors; index++) { - if (GETJSAMPLE(colormap0[index]) == R && - GETJSAMPLE(colormap1[index]) == G && - GETJSAMPLE(colormap2[index]) == B) - return; /* color is already in map */ - } - - /* Check for map overflow. */ - if (ncolors >= (MAXJSAMPLE+1)) - ERREXIT1(cinfo, JERR_QUANT_MANY_COLORS, (MAXJSAMPLE+1)); - - /* OK, add color to map. */ - colormap0[ncolors] = (JSAMPLE) R; - colormap1[ncolors] = (JSAMPLE) G; - colormap2[ncolors] = (JSAMPLE) B; - cinfo->actual_number_of_colors++; -} - - -/* - * Extract color map from a GIF file. - */ - -LOCAL(void) -read_gif_map (j_decompress_ptr cinfo, FILE * infile) -{ - int header[13]; - int i, colormaplen; - int R, G, B; - - /* Initial 'G' has already been read by read_color_map */ - /* Read the rest of the GIF header and logical screen descriptor */ - for (i = 1; i < 13; i++) { - if ((header[i] = getc(infile)) == EOF) - ERREXIT(cinfo, JERR_BAD_CMAP_FILE); - } - - /* Verify GIF Header */ - if (header[1] != 'I' || header[2] != 'F') - ERREXIT(cinfo, JERR_BAD_CMAP_FILE); - - /* There must be a global color map. */ - if ((header[10] & 0x80) == 0) - ERREXIT(cinfo, JERR_BAD_CMAP_FILE); - - /* OK, fetch it. */ - colormaplen = 2 << (header[10] & 0x07); - - for (i = 0; i < colormaplen; i++) { - R = getc(infile); - G = getc(infile); - B = getc(infile); - if (R == EOF || G == EOF || B == EOF) - ERREXIT(cinfo, JERR_BAD_CMAP_FILE); - add_map_entry(cinfo, - R << (BITS_IN_JSAMPLE-8), - G << (BITS_IN_JSAMPLE-8), - B << (BITS_IN_JSAMPLE-8)); - } -} - - -/* Support routines for reading PPM */ - - -LOCAL(int) -pbm_getc (FILE * infile) -/* Read next char, skipping over any comments */ -/* A comment/newline sequence is returned as a newline */ -{ - register int ch; - - ch = getc(infile); - if (ch == '#') { - do { - ch = getc(infile); - } while (ch != '\n' && ch != EOF); - } - return ch; -} - - -LOCAL(unsigned int) -read_pbm_integer (j_decompress_ptr cinfo, FILE * infile) -/* Read an unsigned decimal integer from the PPM file */ -/* Swallows one trailing character after the integer */ -/* Note that on a 16-bit-int machine, only values up to 64k can be read. */ -/* This should not be a problem in practice. */ -{ - register int ch; - register unsigned int val; - - /* Skip any leading whitespace */ - do { - ch = pbm_getc(infile); - if (ch == EOF) - ERREXIT(cinfo, JERR_BAD_CMAP_FILE); - } while (ch == ' ' || ch == '\t' || ch == '\n' || ch == '\r'); - - if (ch < '0' || ch > '9') - ERREXIT(cinfo, JERR_BAD_CMAP_FILE); - - val = ch - '0'; - while ((ch = pbm_getc(infile)) >= '0' && ch <= '9') { - val *= 10; - val += ch - '0'; - } - return val; -} - - -/* - * Extract color map from a PPM file. - */ - -LOCAL(void) -read_ppm_map (j_decompress_ptr cinfo, FILE * infile) -{ - int c; - unsigned int w, h, maxval, row, col; - int R, G, B; - - /* Initial 'P' has already been read by read_color_map */ - c = getc(infile); /* save format discriminator for a sec */ - - /* while we fetch the remaining header info */ - w = read_pbm_integer(cinfo, infile); - h = read_pbm_integer(cinfo, infile); - maxval = read_pbm_integer(cinfo, infile); - - if (w <= 0 || h <= 0 || maxval <= 0) /* error check */ - ERREXIT(cinfo, JERR_BAD_CMAP_FILE); - - /* For now, we don't support rescaling from an unusual maxval. */ - if (maxval != (unsigned int) MAXJSAMPLE) - ERREXIT(cinfo, JERR_BAD_CMAP_FILE); - - switch (c) { - case '3': /* it's a text-format PPM file */ - for (row = 0; row < h; row++) { - for (col = 0; col < w; col++) { - R = read_pbm_integer(cinfo, infile); - G = read_pbm_integer(cinfo, infile); - B = read_pbm_integer(cinfo, infile); - add_map_entry(cinfo, R, G, B); - } - } - break; - - case '6': /* it's a raw-format PPM file */ - for (row = 0; row < h; row++) { - for (col = 0; col < w; col++) { - R = getc(infile); - G = getc(infile); - B = getc(infile); - if (R == EOF || G == EOF || B == EOF) - ERREXIT(cinfo, JERR_BAD_CMAP_FILE); - add_map_entry(cinfo, R, G, B); - } - } - break; - - default: - ERREXIT(cinfo, JERR_BAD_CMAP_FILE); - break; - } -} - - -/* - * Main entry point from djpeg.c. - * Input: opened input file (from file name argument on command line). - * Output: colormap and actual_number_of_colors fields are set in cinfo. - */ - -GLOBAL(void) -read_color_map (j_decompress_ptr cinfo, FILE * infile) -{ - /* Allocate space for a color map of maximum supported size. */ - cinfo->colormap = (*cinfo->mem->alloc_sarray) - ((j_common_ptr) cinfo, JPOOL_IMAGE, - (JDIMENSION) (MAXJSAMPLE+1), (JDIMENSION) 3); - cinfo->actual_number_of_colors = 0; /* initialize map to empty */ - - /* Read first byte to determine file format */ - switch (getc(infile)) { - case 'G': - read_gif_map(cinfo, infile); - break; - case 'P': - read_ppm_map(cinfo, infile); - break; - default: - ERREXIT(cinfo, JERR_BAD_CMAP_FILE); - break; - } -} - -#endif /* QUANT_2PASS_SUPPORTED */ diff --git a/jpg/rdgif.c b/jpg/rdgif.c deleted file mode 100644 index b27c167..0000000 --- a/jpg/rdgif.c +++ /dev/null @@ -1,38 +0,0 @@ -/* - * rdgif.c - * - * Copyright (C) 1991-1997, Thomas G. Lane. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file contains routines to read input images in GIF format. - * - ***************************************************************************** - * NOTE: to avoid entanglements with Unisys' patent on LZW compression, * - * the ability to read GIF files has been removed from the IJG distribution. * - * Sorry about that. * - ***************************************************************************** - * - * We are required to state that - * "The Graphics Interchange Format(c) is the Copyright property of - * CompuServe Incorporated. GIF(sm) is a Service Mark property of - * CompuServe Incorporated." - */ - -#include "cdjpeg.h" /* Common decls for cjpeg/djpeg applications */ - -#ifdef GIF_SUPPORTED - -/* - * The module selection routine for GIF format input. - */ - -GLOBAL(cjpeg_source_ptr) -jinit_read_gif (j_compress_ptr cinfo) -{ - fprintf(stderr, "GIF input is unsupported for legal reasons. Sorry.\n"); - exit(EXIT_FAILURE); - return NULL; /* keep compiler happy */ -} - -#endif /* GIF_SUPPORTED */ diff --git a/jpg/rdjpgcom.1 b/jpg/rdjpgcom.1 deleted file mode 100644 index 97611df..0000000 --- a/jpg/rdjpgcom.1 +++ /dev/null @@ -1,63 +0,0 @@ -.TH RDJPGCOM 1 "02 April 2009" -.SH NAME -rdjpgcom \- display text comments from a JPEG file -.SH SYNOPSIS -.B rdjpgcom -[ -.B \-raw -] -[ -.B \-verbose -] -[ -.I filename -] -.LP -.SH DESCRIPTION -.LP -.B rdjpgcom -reads the named JPEG/JFIF file, or the standard input if no file is named, -and prints any text comments found in the file on the standard output. -.PP -The JPEG standard allows "comment" (COM) blocks to occur within a JPEG file. -Although the standard doesn't actually define what COM blocks are for, they -are widely used to hold user-supplied text strings. This lets you add -annotations, titles, index terms, etc to your JPEG files, and later retrieve -them as text. COM blocks do not interfere with the image stored in the JPEG -file. The maximum size of a COM block is 64K, but you can have as many of -them as you like in one JPEG file. -.SH OPTIONS -.TP -.B \-raw -Normally -.B rdjpgcom -escapes non-printable characters in comments, for security reasons. -This option avoids that. -.PP -.B \-verbose -Causes -.B rdjpgcom -to also display the JPEG image dimensions. -.PP -Switch names may be abbreviated, and are not case sensitive. -.SH HINTS -.B rdjpgcom -does not depend on the IJG JPEG library. Its source code is intended as an -illustration of the minimum amount of code required to parse a JPEG file -header correctly. -.PP -In -.B \-verbose -mode, -.B rdjpgcom -will also attempt to print the contents of any "APP12" markers as text. -Some digital cameras produce APP12 markers containing useful textual -information. If you like, you can modify the source code to print -other APPn marker types as well. -.SH SEE ALSO -.BR cjpeg (1), -.BR djpeg (1), -.BR jpegtran (1), -.BR wrjpgcom (1) -.SH AUTHOR -Independent JPEG Group diff --git a/jpg/rdjpgcom.c b/jpg/rdjpgcom.c deleted file mode 100644 index 3719154..0000000 --- a/jpg/rdjpgcom.c +++ /dev/null @@ -1,515 +0,0 @@ -/* - * rdjpgcom.c - * - * Copyright (C) 1994-1997, Thomas G. Lane. - * Modified 2009 by Bill Allombert, Guido Vollbeding. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file contains a very simple stand-alone application that displays - * the text in COM (comment) markers in a JFIF file. - * This may be useful as an example of the minimum logic needed to parse - * JPEG markers. - */ - -#define JPEG_CJPEG_DJPEG /* to get the command-line config symbols */ -#include "jinclude.h" /* get auto-config symbols, */ - -#ifdef HAVE_LOCALE_H -#include /* Bill Allombert: use locale for isprint */ -#endif -#include /* to declare isupper(), tolower() */ -#ifdef USE_SETMODE -#include /* to declare setmode()'s parameter macros */ -/* If you have setmode() but not , just delete this line: */ -#include /* to declare setmode() */ -#endif - -#ifdef USE_CCOMMAND /* command-line reader for Macintosh */ -#ifdef __MWERKS__ -#include /* Metrowerks needs this */ -#include /* ... and this */ -#endif -#ifdef THINK_C -#include /* Think declares it here */ -#endif -#endif - -#ifdef DONT_USE_B_MODE /* define mode parameters for fopen() */ -#define READ_BINARY "r" -#else -#ifdef VMS /* VMS is very nonstandard */ -#define READ_BINARY "rb", "ctx=stm" -#else /* standard ANSI-compliant case */ -#define READ_BINARY "rb" -#endif -#endif - -#ifndef EXIT_FAILURE /* define exit() codes if not provided */ -#define EXIT_FAILURE 1 -#endif -#ifndef EXIT_SUCCESS -#ifdef VMS -#define EXIT_SUCCESS 1 /* VMS is very nonstandard */ -#else -#define EXIT_SUCCESS 0 -#endif -#endif - - -/* - * These macros are used to read the input file. - * To reuse this code in another application, you might need to change these. - */ - -static FILE * infile; /* input JPEG file */ - -/* Return next input byte, or EOF if no more */ -#define NEXTBYTE() getc(infile) - - -/* Error exit handler */ -#define ERREXIT(msg) (fprintf(stderr, "%s\n", msg), exit(EXIT_FAILURE)) - - -/* Read one byte, testing for EOF */ -static int -read_1_byte (void) -{ - int c; - - c = NEXTBYTE(); - if (c == EOF) - ERREXIT("Premature EOF in JPEG file"); - return c; -} - -/* Read 2 bytes, convert to unsigned int */ -/* All 2-byte quantities in JPEG markers are MSB first */ -static unsigned int -read_2_bytes (void) -{ - int c1, c2; - - c1 = NEXTBYTE(); - if (c1 == EOF) - ERREXIT("Premature EOF in JPEG file"); - c2 = NEXTBYTE(); - if (c2 == EOF) - ERREXIT("Premature EOF in JPEG file"); - return (((unsigned int) c1) << 8) + ((unsigned int) c2); -} - - -/* - * JPEG markers consist of one or more 0xFF bytes, followed by a marker - * code byte (which is not an FF). Here are the marker codes of interest - * in this program. (See jdmarker.c for a more complete list.) - */ - -#define M_SOF0 0xC0 /* Start Of Frame N */ -#define M_SOF1 0xC1 /* N indicates which compression process */ -#define M_SOF2 0xC2 /* Only SOF0-SOF2 are now in common use */ -#define M_SOF3 0xC3 -#define M_SOF5 0xC5 /* NB: codes C4 and CC are NOT SOF markers */ -#define M_SOF6 0xC6 -#define M_SOF7 0xC7 -#define M_SOF9 0xC9 -#define M_SOF10 0xCA -#define M_SOF11 0xCB -#define M_SOF13 0xCD -#define M_SOF14 0xCE -#define M_SOF15 0xCF -#define M_SOI 0xD8 /* Start Of Image (beginning of datastream) */ -#define M_EOI 0xD9 /* End Of Image (end of datastream) */ -#define M_SOS 0xDA /* Start Of Scan (begins compressed data) */ -#define M_APP0 0xE0 /* Application-specific marker, type N */ -#define M_APP12 0xEC /* (we don't bother to list all 16 APPn's) */ -#define M_COM 0xFE /* COMment */ - - -/* - * Find the next JPEG marker and return its marker code. - * We expect at least one FF byte, possibly more if the compressor used FFs - * to pad the file. - * There could also be non-FF garbage between markers. The treatment of such - * garbage is unspecified; we choose to skip over it but emit a warning msg. - * NB: this routine must not be used after seeing SOS marker, since it will - * not deal correctly with FF/00 sequences in the compressed image data... - */ - -static int -next_marker (void) -{ - int c; - int discarded_bytes = 0; - - /* Find 0xFF byte; count and skip any non-FFs. */ - c = read_1_byte(); - while (c != 0xFF) { - discarded_bytes++; - c = read_1_byte(); - } - /* Get marker code byte, swallowing any duplicate FF bytes. Extra FFs - * are legal as pad bytes, so don't count them in discarded_bytes. - */ - do { - c = read_1_byte(); - } while (c == 0xFF); - - if (discarded_bytes != 0) { - fprintf(stderr, "Warning: garbage data found in JPEG file\n"); - } - - return c; -} - - -/* - * Read the initial marker, which should be SOI. - * For a JFIF file, the first two bytes of the file should be literally - * 0xFF M_SOI. To be more general, we could use next_marker, but if the - * input file weren't actually JPEG at all, next_marker might read the whole - * file and then return a misleading error message... - */ - -static int -first_marker (void) -{ - int c1, c2; - - c1 = NEXTBYTE(); - c2 = NEXTBYTE(); - if (c1 != 0xFF || c2 != M_SOI) - ERREXIT("Not a JPEG file"); - return c2; -} - - -/* - * Most types of marker are followed by a variable-length parameter segment. - * This routine skips over the parameters for any marker we don't otherwise - * want to process. - * Note that we MUST skip the parameter segment explicitly in order not to - * be fooled by 0xFF bytes that might appear within the parameter segment; - * such bytes do NOT introduce new markers. - */ - -static void -skip_variable (void) -/* Skip over an unknown or uninteresting variable-length marker */ -{ - unsigned int length; - - /* Get the marker parameter length count */ - length = read_2_bytes(); - /* Length includes itself, so must be at least 2 */ - if (length < 2) - ERREXIT("Erroneous JPEG marker length"); - length -= 2; - /* Skip over the remaining bytes */ - while (length > 0) { - (void) read_1_byte(); - length--; - } -} - - -/* - * Process a COM marker. - * We want to print out the marker contents as legible text; - * we must guard against non-text junk and varying newline representations. - */ - -static void -process_COM (int raw) -{ - unsigned int length; - int ch; - int lastch = 0; - - /* Bill Allombert: set locale properly for isprint */ -#ifdef HAVE_LOCALE_H - setlocale(LC_CTYPE, ""); -#endif - - /* Get the marker parameter length count */ - length = read_2_bytes(); - /* Length includes itself, so must be at least 2 */ - if (length < 2) - ERREXIT("Erroneous JPEG marker length"); - length -= 2; - - while (length > 0) { - ch = read_1_byte(); - if (raw) { - putc(ch, stdout); - /* Emit the character in a readable form. - * Nonprintables are converted to \nnn form, - * while \ is converted to \\. - * Newlines in CR, CR/LF, or LF form will be printed as one newline. - */ - } else if (ch == '\r') { - printf("\n"); - } else if (ch == '\n') { - if (lastch != '\r') - printf("\n"); - } else if (ch == '\\') { - printf("\\\\"); - } else if (isprint(ch)) { - putc(ch, stdout); - } else { - printf("\\%03o", ch); - } - lastch = ch; - length--; - } - printf("\n"); - - /* Bill Allombert: revert to C locale */ -#ifdef HAVE_LOCALE_H - setlocale(LC_CTYPE, "C"); -#endif -} - - -/* - * Process a SOFn marker. - * This code is only needed if you want to know the image dimensions... - */ - -static void -process_SOFn (int marker) -{ - unsigned int length; - unsigned int image_height, image_width; - int data_precision, num_components; - const char * process; - int ci; - - length = read_2_bytes(); /* usual parameter length count */ - - data_precision = read_1_byte(); - image_height = read_2_bytes(); - image_width = read_2_bytes(); - num_components = read_1_byte(); - - switch (marker) { - case M_SOF0: process = "Baseline"; break; - case M_SOF1: process = "Extended sequential"; break; - case M_SOF2: process = "Progressive"; break; - case M_SOF3: process = "Lossless"; break; - case M_SOF5: process = "Differential sequential"; break; - case M_SOF6: process = "Differential progressive"; break; - case M_SOF7: process = "Differential lossless"; break; - case M_SOF9: process = "Extended sequential, arithmetic coding"; break; - case M_SOF10: process = "Progressive, arithmetic coding"; break; - case M_SOF11: process = "Lossless, arithmetic coding"; break; - case M_SOF13: process = "Differential sequential, arithmetic coding"; break; - case M_SOF14: process = "Differential progressive, arithmetic coding"; break; - case M_SOF15: process = "Differential lossless, arithmetic coding"; break; - default: process = "Unknown"; break; - } - - printf("JPEG image is %uw * %uh, %d color components, %d bits per sample\n", - image_width, image_height, num_components, data_precision); - printf("JPEG process: %s\n", process); - - if (length != (unsigned int) (8 + num_components * 3)) - ERREXIT("Bogus SOF marker length"); - - for (ci = 0; ci < num_components; ci++) { - (void) read_1_byte(); /* Component ID code */ - (void) read_1_byte(); /* H, V sampling factors */ - (void) read_1_byte(); /* Quantization table number */ - } -} - - -/* - * Parse the marker stream until SOS or EOI is seen; - * display any COM markers. - * While the companion program wrjpgcom will always insert COM markers before - * SOFn, other implementations might not, so we scan to SOS before stopping. - * If we were only interested in the image dimensions, we would stop at SOFn. - * (Conversely, if we only cared about COM markers, there would be no need - * for special code to handle SOFn; we could treat it like other markers.) - */ - -static int -scan_JPEG_header (int verbose, int raw) -{ - int marker; - - /* Expect SOI at start of file */ - if (first_marker() != M_SOI) - ERREXIT("Expected SOI marker first"); - - /* Scan miscellaneous markers until we reach SOS. */ - for (;;) { - marker = next_marker(); - switch (marker) { - /* Note that marker codes 0xC4, 0xC8, 0xCC are not, and must not be, - * treated as SOFn. C4 in particular is actually DHT. - */ - case M_SOF0: /* Baseline */ - case M_SOF1: /* Extended sequential, Huffman */ - case M_SOF2: /* Progressive, Huffman */ - case M_SOF3: /* Lossless, Huffman */ - case M_SOF5: /* Differential sequential, Huffman */ - case M_SOF6: /* Differential progressive, Huffman */ - case M_SOF7: /* Differential lossless, Huffman */ - case M_SOF9: /* Extended sequential, arithmetic */ - case M_SOF10: /* Progressive, arithmetic */ - case M_SOF11: /* Lossless, arithmetic */ - case M_SOF13: /* Differential sequential, arithmetic */ - case M_SOF14: /* Differential progressive, arithmetic */ - case M_SOF15: /* Differential lossless, arithmetic */ - if (verbose) - process_SOFn(marker); - else - skip_variable(); - break; - - case M_SOS: /* stop before hitting compressed data */ - return marker; - - case M_EOI: /* in case it's a tables-only JPEG stream */ - return marker; - - case M_COM: - process_COM(raw); - break; - - case M_APP12: - /* Some digital camera makers put useful textual information into - * APP12 markers, so we print those out too when in -verbose mode. - */ - if (verbose) { - printf("APP12 contains:\n"); - process_COM(raw); - } else - skip_variable(); - break; - - default: /* Anything else just gets skipped */ - skip_variable(); /* we assume it has a parameter count... */ - break; - } - } /* end loop */ -} - - -/* Command line parsing code */ - -static const char * progname; /* program name for error messages */ - - -static void -usage (void) -/* complain about bad command line */ -{ - fprintf(stderr, "rdjpgcom displays any textual comments in a JPEG file.\n"); - - fprintf(stderr, "Usage: %s [switches] [inputfile]\n", progname); - - fprintf(stderr, "Switches (names may be abbreviated):\n"); - fprintf(stderr, " -raw Display non-printable characters in comments (unsafe)\n"); - fprintf(stderr, " -verbose Also display dimensions of JPEG image\n"); - - exit(EXIT_FAILURE); -} - - -static int -keymatch (char * arg, const char * keyword, int minchars) -/* Case-insensitive matching of (possibly abbreviated) keyword switches. */ -/* keyword is the constant keyword (must be lower case already), */ -/* minchars is length of minimum legal abbreviation. */ -{ - register int ca, ck; - register int nmatched = 0; - - while ((ca = *arg++) != '\0') { - if ((ck = *keyword++) == '\0') - return 0; /* arg longer than keyword, no good */ - if (isupper(ca)) /* force arg to lcase (assume ck is already) */ - ca = tolower(ca); - if (ca != ck) - return 0; /* no good */ - nmatched++; /* count matched characters */ - } - /* reached end of argument; fail if it's too short for unique abbrev */ - if (nmatched < minchars) - return 0; - return 1; /* A-OK */ -} - - -/* - * The main program. - */ - -int -main (int argc, char **argv) -{ - int argn; - char * arg; - int verbose = 0, raw = 0; - - /* On Mac, fetch a command line. */ -#ifdef USE_CCOMMAND - argc = ccommand(&argv); -#endif - - progname = argv[0]; - if (progname == NULL || progname[0] == 0) - progname = "rdjpgcom"; /* in case C library doesn't provide it */ - - /* Parse switches, if any */ - for (argn = 1; argn < argc; argn++) { - arg = argv[argn]; - if (arg[0] != '-') - break; /* not switch, must be file name */ - arg++; /* advance over '-' */ - if (keymatch(arg, "verbose", 1)) { - verbose++; - } else if (keymatch(arg, "raw", 1)) { - raw = 1; - } else - usage(); - } - - /* Open the input file. */ - /* Unix style: expect zero or one file name */ - if (argn < argc-1) { - fprintf(stderr, "%s: only one input file\n", progname); - usage(); - } - if (argn < argc) { - if ((infile = fopen(argv[argn], READ_BINARY)) == NULL) { - fprintf(stderr, "%s: can't open %s\n", progname, argv[argn]); - exit(EXIT_FAILURE); - } - } else { - /* default input file is stdin */ -#ifdef USE_SETMODE /* need to hack file mode? */ - setmode(fileno(stdin), O_BINARY); -#endif -#ifdef USE_FDOPEN /* need to re-open in binary mode? */ - if ((infile = fdopen(fileno(stdin), READ_BINARY)) == NULL) { - fprintf(stderr, "%s: can't open stdin\n", progname); - exit(EXIT_FAILURE); - } -#else - infile = stdin; -#endif - } - - /* Scan the JPEG headers. */ - (void) scan_JPEG_header(verbose, raw); - - /* All done. */ - exit(EXIT_SUCCESS); - return 0; /* suppress no-return-value warnings */ -} diff --git a/jpg/rdppm.c b/jpg/rdppm.c deleted file mode 100644 index a757022..0000000 --- a/jpg/rdppm.c +++ /dev/null @@ -1,459 +0,0 @@ -/* - * rdppm.c - * - * Copyright (C) 1991-1997, Thomas G. Lane. - * Modified 2009 by Bill Allombert, Guido Vollbeding. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file contains routines to read input images in PPM/PGM format. - * The extended 2-byte-per-sample raw PPM/PGM formats are supported. - * The PBMPLUS library is NOT required to compile this software - * (but it is highly useful as a set of PPM image manipulation programs). - * - * These routines may need modification for non-Unix environments or - * specialized applications. As they stand, they assume input from - * an ordinary stdio stream. They further assume that reading begins - * at the start of the file; start_input may need work if the - * user interface has already read some data (e.g., to determine that - * the file is indeed PPM format). - */ - -#include "cdjpeg.h" /* Common decls for cjpeg/djpeg applications */ - -#ifdef PPM_SUPPORTED - - -/* Portions of this code are based on the PBMPLUS library, which is: -** -** Copyright (C) 1988 by Jef Poskanzer. -** -** Permission to use, copy, modify, and distribute this software and its -** documentation for any purpose and without fee is hereby granted, provided -** that the above copyright notice appear in all copies and that both that -** copyright notice and this permission notice appear in supporting -** documentation. This software is provided "as is" without express or -** implied warranty. -*/ - - -/* Macros to deal with unsigned chars as efficiently as compiler allows */ - -#ifdef HAVE_UNSIGNED_CHAR -typedef unsigned char U_CHAR; -#define UCH(x) ((int) (x)) -#else /* !HAVE_UNSIGNED_CHAR */ -#ifdef CHAR_IS_UNSIGNED -typedef char U_CHAR; -#define UCH(x) ((int) (x)) -#else -typedef char U_CHAR; -#define UCH(x) ((int) (x) & 0xFF) -#endif -#endif /* HAVE_UNSIGNED_CHAR */ - - -#define ReadOK(file,buffer,len) (JFREAD(file,buffer,len) == ((size_t) (len))) - - -/* - * On most systems, reading individual bytes with getc() is drastically less - * efficient than buffering a row at a time with fread(). On PCs, we must - * allocate the buffer in near data space, because we are assuming small-data - * memory model, wherein fread() can't reach far memory. If you need to - * process very wide images on a PC, you might have to compile in large-memory - * model, or else replace fread() with a getc() loop --- which will be much - * slower. - */ - - -/* Private version of data source object */ - -typedef struct { - struct cjpeg_source_struct pub; /* public fields */ - - U_CHAR *iobuffer; /* non-FAR pointer to I/O buffer */ - JSAMPROW pixrow; /* FAR pointer to same */ - size_t buffer_width; /* width of I/O buffer */ - JSAMPLE *rescale; /* => maxval-remapping array, or NULL */ -} ppm_source_struct; - -typedef ppm_source_struct * ppm_source_ptr; - - -LOCAL(int) -pbm_getc (FILE * infile) -/* Read next char, skipping over any comments */ -/* A comment/newline sequence is returned as a newline */ -{ - register int ch; - - ch = getc(infile); - if (ch == '#') { - do { - ch = getc(infile); - } while (ch != '\n' && ch != EOF); - } - return ch; -} - - -LOCAL(unsigned int) -read_pbm_integer (j_compress_ptr cinfo, FILE * infile) -/* Read an unsigned decimal integer from the PPM file */ -/* Swallows one trailing character after the integer */ -/* Note that on a 16-bit-int machine, only values up to 64k can be read. */ -/* This should not be a problem in practice. */ -{ - register int ch; - register unsigned int val; - - /* Skip any leading whitespace */ - do { - ch = pbm_getc(infile); - if (ch == EOF) - ERREXIT(cinfo, JERR_INPUT_EOF); - } while (ch == ' ' || ch == '\t' || ch == '\n' || ch == '\r'); - - if (ch < '0' || ch > '9') - ERREXIT(cinfo, JERR_PPM_NONNUMERIC); - - val = ch - '0'; - while ((ch = pbm_getc(infile)) >= '0' && ch <= '9') { - val *= 10; - val += ch - '0'; - } - return val; -} - - -/* - * Read one row of pixels. - * - * We provide several different versions depending on input file format. - * In all cases, input is scaled to the size of JSAMPLE. - * - * A really fast path is provided for reading byte/sample raw files with - * maxval = MAXJSAMPLE, which is the normal case for 8-bit data. - */ - - -METHODDEF(JDIMENSION) -get_text_gray_row (j_compress_ptr cinfo, cjpeg_source_ptr sinfo) -/* This version is for reading text-format PGM files with any maxval */ -{ - ppm_source_ptr source = (ppm_source_ptr) sinfo; - FILE * infile = source->pub.input_file; - register JSAMPROW ptr; - register JSAMPLE *rescale = source->rescale; - JDIMENSION col; - - ptr = source->pub.buffer[0]; - for (col = cinfo->image_width; col > 0; col--) { - *ptr++ = rescale[read_pbm_integer(cinfo, infile)]; - } - return 1; -} - - -METHODDEF(JDIMENSION) -get_text_rgb_row (j_compress_ptr cinfo, cjpeg_source_ptr sinfo) -/* This version is for reading text-format PPM files with any maxval */ -{ - ppm_source_ptr source = (ppm_source_ptr) sinfo; - FILE * infile = source->pub.input_file; - register JSAMPROW ptr; - register JSAMPLE *rescale = source->rescale; - JDIMENSION col; - - ptr = source->pub.buffer[0]; - for (col = cinfo->image_width; col > 0; col--) { - *ptr++ = rescale[read_pbm_integer(cinfo, infile)]; - *ptr++ = rescale[read_pbm_integer(cinfo, infile)]; - *ptr++ = rescale[read_pbm_integer(cinfo, infile)]; - } - return 1; -} - - -METHODDEF(JDIMENSION) -get_scaled_gray_row (j_compress_ptr cinfo, cjpeg_source_ptr sinfo) -/* This version is for reading raw-byte-format PGM files with any maxval */ -{ - ppm_source_ptr source = (ppm_source_ptr) sinfo; - register JSAMPROW ptr; - register U_CHAR * bufferptr; - register JSAMPLE *rescale = source->rescale; - JDIMENSION col; - - if (! ReadOK(source->pub.input_file, source->iobuffer, source->buffer_width)) - ERREXIT(cinfo, JERR_INPUT_EOF); - ptr = source->pub.buffer[0]; - bufferptr = source->iobuffer; - for (col = cinfo->image_width; col > 0; col--) { - *ptr++ = rescale[UCH(*bufferptr++)]; - } - return 1; -} - - -METHODDEF(JDIMENSION) -get_scaled_rgb_row (j_compress_ptr cinfo, cjpeg_source_ptr sinfo) -/* This version is for reading raw-byte-format PPM files with any maxval */ -{ - ppm_source_ptr source = (ppm_source_ptr) sinfo; - register JSAMPROW ptr; - register U_CHAR * bufferptr; - register JSAMPLE *rescale = source->rescale; - JDIMENSION col; - - if (! ReadOK(source->pub.input_file, source->iobuffer, source->buffer_width)) - ERREXIT(cinfo, JERR_INPUT_EOF); - ptr = source->pub.buffer[0]; - bufferptr = source->iobuffer; - for (col = cinfo->image_width; col > 0; col--) { - *ptr++ = rescale[UCH(*bufferptr++)]; - *ptr++ = rescale[UCH(*bufferptr++)]; - *ptr++ = rescale[UCH(*bufferptr++)]; - } - return 1; -} - - -METHODDEF(JDIMENSION) -get_raw_row (j_compress_ptr cinfo, cjpeg_source_ptr sinfo) -/* This version is for reading raw-byte-format files with maxval = MAXJSAMPLE. - * In this case we just read right into the JSAMPLE buffer! - * Note that same code works for PPM and PGM files. - */ -{ - ppm_source_ptr source = (ppm_source_ptr) sinfo; - - if (! ReadOK(source->pub.input_file, source->iobuffer, source->buffer_width)) - ERREXIT(cinfo, JERR_INPUT_EOF); - return 1; -} - - -METHODDEF(JDIMENSION) -get_word_gray_row (j_compress_ptr cinfo, cjpeg_source_ptr sinfo) -/* This version is for reading raw-word-format PGM files with any maxval */ -{ - ppm_source_ptr source = (ppm_source_ptr) sinfo; - register JSAMPROW ptr; - register U_CHAR * bufferptr; - register JSAMPLE *rescale = source->rescale; - JDIMENSION col; - - if (! ReadOK(source->pub.input_file, source->iobuffer, source->buffer_width)) - ERREXIT(cinfo, JERR_INPUT_EOF); - ptr = source->pub.buffer[0]; - bufferptr = source->iobuffer; - for (col = cinfo->image_width; col > 0; col--) { - register int temp; - temp = UCH(*bufferptr++) << 8; - temp |= UCH(*bufferptr++); - *ptr++ = rescale[temp]; - } - return 1; -} - - -METHODDEF(JDIMENSION) -get_word_rgb_row (j_compress_ptr cinfo, cjpeg_source_ptr sinfo) -/* This version is for reading raw-word-format PPM files with any maxval */ -{ - ppm_source_ptr source = (ppm_source_ptr) sinfo; - register JSAMPROW ptr; - register U_CHAR * bufferptr; - register JSAMPLE *rescale = source->rescale; - JDIMENSION col; - - if (! ReadOK(source->pub.input_file, source->iobuffer, source->buffer_width)) - ERREXIT(cinfo, JERR_INPUT_EOF); - ptr = source->pub.buffer[0]; - bufferptr = source->iobuffer; - for (col = cinfo->image_width; col > 0; col--) { - register int temp; - temp = UCH(*bufferptr++) << 8; - temp |= UCH(*bufferptr++); - *ptr++ = rescale[temp]; - temp = UCH(*bufferptr++) << 8; - temp |= UCH(*bufferptr++); - *ptr++ = rescale[temp]; - temp = UCH(*bufferptr++) << 8; - temp |= UCH(*bufferptr++); - *ptr++ = rescale[temp]; - } - return 1; -} - - -/* - * Read the file header; return image size and component count. - */ - -METHODDEF(void) -start_input_ppm (j_compress_ptr cinfo, cjpeg_source_ptr sinfo) -{ - ppm_source_ptr source = (ppm_source_ptr) sinfo; - int c; - unsigned int w, h, maxval; - boolean need_iobuffer, use_raw_buffer, need_rescale; - - if (getc(source->pub.input_file) != 'P') - ERREXIT(cinfo, JERR_PPM_NOT); - - c = getc(source->pub.input_file); /* subformat discriminator character */ - - /* detect unsupported variants (ie, PBM) before trying to read header */ - switch (c) { - case '2': /* it's a text-format PGM file */ - case '3': /* it's a text-format PPM file */ - case '5': /* it's a raw-format PGM file */ - case '6': /* it's a raw-format PPM file */ - break; - default: - ERREXIT(cinfo, JERR_PPM_NOT); - break; - } - - /* fetch the remaining header info */ - w = read_pbm_integer(cinfo, source->pub.input_file); - h = read_pbm_integer(cinfo, source->pub.input_file); - maxval = read_pbm_integer(cinfo, source->pub.input_file); - - if (w <= 0 || h <= 0 || maxval <= 0) /* error check */ - ERREXIT(cinfo, JERR_PPM_NOT); - - cinfo->data_precision = BITS_IN_JSAMPLE; /* we always rescale data to this */ - cinfo->image_width = (JDIMENSION) w; - cinfo->image_height = (JDIMENSION) h; - - /* initialize flags to most common settings */ - need_iobuffer = TRUE; /* do we need an I/O buffer? */ - use_raw_buffer = FALSE; /* do we map input buffer onto I/O buffer? */ - need_rescale = TRUE; /* do we need a rescale array? */ - - switch (c) { - case '2': /* it's a text-format PGM file */ - cinfo->input_components = 1; - cinfo->in_color_space = JCS_GRAYSCALE; - TRACEMS2(cinfo, 1, JTRC_PGM_TEXT, w, h); - source->pub.get_pixel_rows = get_text_gray_row; - need_iobuffer = FALSE; - break; - - case '3': /* it's a text-format PPM file */ - cinfo->input_components = 3; - cinfo->in_color_space = JCS_RGB; - TRACEMS2(cinfo, 1, JTRC_PPM_TEXT, w, h); - source->pub.get_pixel_rows = get_text_rgb_row; - need_iobuffer = FALSE; - break; - - case '5': /* it's a raw-format PGM file */ - cinfo->input_components = 1; - cinfo->in_color_space = JCS_GRAYSCALE; - TRACEMS2(cinfo, 1, JTRC_PGM, w, h); - if (maxval > 255) { - source->pub.get_pixel_rows = get_word_gray_row; - } else if (maxval == MAXJSAMPLE && SIZEOF(JSAMPLE) == SIZEOF(U_CHAR)) { - source->pub.get_pixel_rows = get_raw_row; - use_raw_buffer = TRUE; - need_rescale = FALSE; - } else { - source->pub.get_pixel_rows = get_scaled_gray_row; - } - break; - - case '6': /* it's a raw-format PPM file */ - cinfo->input_components = 3; - cinfo->in_color_space = JCS_RGB; - TRACEMS2(cinfo, 1, JTRC_PPM, w, h); - if (maxval > 255) { - source->pub.get_pixel_rows = get_word_rgb_row; - } else if (maxval == MAXJSAMPLE && SIZEOF(JSAMPLE) == SIZEOF(U_CHAR)) { - source->pub.get_pixel_rows = get_raw_row; - use_raw_buffer = TRUE; - need_rescale = FALSE; - } else { - source->pub.get_pixel_rows = get_scaled_rgb_row; - } - break; - } - - /* Allocate space for I/O buffer: 1 or 3 bytes or words/pixel. */ - if (need_iobuffer) { - source->buffer_width = (size_t) w * cinfo->input_components * - ((maxval<=255) ? SIZEOF(U_CHAR) : (2*SIZEOF(U_CHAR))); - source->iobuffer = (U_CHAR *) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - source->buffer_width); - } - - /* Create compressor input buffer. */ - if (use_raw_buffer) { - /* For unscaled raw-input case, we can just map it onto the I/O buffer. */ - /* Synthesize a JSAMPARRAY pointer structure */ - /* Cast here implies near->far pointer conversion on PCs */ - source->pixrow = (JSAMPROW) source->iobuffer; - source->pub.buffer = & source->pixrow; - source->pub.buffer_height = 1; - } else { - /* Need to translate anyway, so make a separate sample buffer. */ - source->pub.buffer = (*cinfo->mem->alloc_sarray) - ((j_common_ptr) cinfo, JPOOL_IMAGE, - (JDIMENSION) w * cinfo->input_components, (JDIMENSION) 1); - source->pub.buffer_height = 1; - } - - /* Compute the rescaling array if required. */ - if (need_rescale) { - INT32 val, half_maxval; - - /* On 16-bit-int machines we have to be careful of maxval = 65535 */ - source->rescale = (JSAMPLE *) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - (size_t) (((long) maxval + 1L) * SIZEOF(JSAMPLE))); - half_maxval = maxval / 2; - for (val = 0; val <= (INT32) maxval; val++) { - /* The multiplication here must be done in 32 bits to avoid overflow */ - source->rescale[val] = (JSAMPLE) ((val*MAXJSAMPLE + half_maxval)/maxval); - } - } -} - - -/* - * Finish up at the end of the file. - */ - -METHODDEF(void) -finish_input_ppm (j_compress_ptr cinfo, cjpeg_source_ptr sinfo) -{ - /* no work */ -} - - -/* - * The module selection routine for PPM format input. - */ - -GLOBAL(cjpeg_source_ptr) -jinit_read_ppm (j_compress_ptr cinfo) -{ - ppm_source_ptr source; - - /* Create module interface object */ - source = (ppm_source_ptr) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - SIZEOF(ppm_source_struct)); - /* Fill in method ptrs, except get_pixel_rows which start_input sets */ - source->pub.start_input = start_input_ppm; - source->pub.finish_input = finish_input_ppm; - - return (cjpeg_source_ptr) source; -} - -#endif /* PPM_SUPPORTED */ diff --git a/jpg/rdrle.c b/jpg/rdrle.c deleted file mode 100644 index 542bc37..0000000 --- a/jpg/rdrle.c +++ /dev/null @@ -1,387 +0,0 @@ -/* - * rdrle.c - * - * Copyright (C) 1991-1996, Thomas G. Lane. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file contains routines to read input images in Utah RLE format. - * The Utah Raster Toolkit library is required (version 3.1 or later). - * - * These routines may need modification for non-Unix environments or - * specialized applications. As they stand, they assume input from - * an ordinary stdio stream. They further assume that reading begins - * at the start of the file; start_input may need work if the - * user interface has already read some data (e.g., to determine that - * the file is indeed RLE format). - * - * Based on code contributed by Mike Lijewski, - * with updates from Robert Hutchinson. - */ - -#include "cdjpeg.h" /* Common decls for cjpeg/djpeg applications */ - -#ifdef RLE_SUPPORTED - -/* rle.h is provided by the Utah Raster Toolkit. */ - -#include - -/* - * We assume that JSAMPLE has the same representation as rle_pixel, - * to wit, "unsigned char". Hence we can't cope with 12- or 16-bit samples. - */ - -#if BITS_IN_JSAMPLE != 8 - Sorry, this code only copes with 8-bit JSAMPLEs. /* deliberate syntax err */ -#endif - -/* - * We support the following types of RLE files: - * - * GRAYSCALE - 8 bits, no colormap - * MAPPEDGRAY - 8 bits, 1 channel colomap - * PSEUDOCOLOR - 8 bits, 3 channel colormap - * TRUECOLOR - 24 bits, 3 channel colormap - * DIRECTCOLOR - 24 bits, no colormap - * - * For now, we ignore any alpha channel in the image. - */ - -typedef enum - { GRAYSCALE, MAPPEDGRAY, PSEUDOCOLOR, TRUECOLOR, DIRECTCOLOR } rle_kind; - - -/* - * Since RLE stores scanlines bottom-to-top, we have to invert the image - * to conform to JPEG's top-to-bottom order. To do this, we read the - * incoming image into a virtual array on the first get_pixel_rows call, - * then fetch the required row from the virtual array on subsequent calls. - */ - -typedef struct _rle_source_struct * rle_source_ptr; - -typedef struct _rle_source_struct { - struct cjpeg_source_struct pub; /* public fields */ - - rle_kind visual; /* actual type of input file */ - jvirt_sarray_ptr image; /* virtual array to hold the image */ - JDIMENSION row; /* current row # in the virtual array */ - rle_hdr header; /* Input file information */ - rle_pixel** rle_row; /* holds a row returned by rle_getrow() */ - -} rle_source_struct; - - -/* - * Read the file header; return image size and component count. - */ - -METHODDEF(void) -start_input_rle (j_compress_ptr cinfo, cjpeg_source_ptr sinfo) -{ - rle_source_ptr source = (rle_source_ptr) sinfo; - JDIMENSION width, height; -#ifdef PROGRESS_REPORT - cd_progress_ptr progress = (cd_progress_ptr) cinfo->progress; -#endif - - /* Use RLE library routine to get the header info */ - source->header = *rle_hdr_init(NULL); - source->header.rle_file = source->pub.input_file; - switch (rle_get_setup(&(source->header))) { - case RLE_SUCCESS: - /* A-OK */ - break; - case RLE_NOT_RLE: - ERREXIT(cinfo, JERR_RLE_NOT); - break; - case RLE_NO_SPACE: - ERREXIT(cinfo, JERR_RLE_MEM); - break; - case RLE_EMPTY: - ERREXIT(cinfo, JERR_RLE_EMPTY); - break; - case RLE_EOF: - ERREXIT(cinfo, JERR_RLE_EOF); - break; - default: - ERREXIT(cinfo, JERR_RLE_BADERROR); - break; - } - - /* Figure out what we have, set private vars and return values accordingly */ - - width = source->header.xmax - source->header.xmin + 1; - height = source->header.ymax - source->header.ymin + 1; - source->header.xmin = 0; /* realign horizontally */ - source->header.xmax = width-1; - - cinfo->image_width = width; - cinfo->image_height = height; - cinfo->data_precision = 8; /* we can only handle 8 bit data */ - - if (source->header.ncolors == 1 && source->header.ncmap == 0) { - source->visual = GRAYSCALE; - TRACEMS2(cinfo, 1, JTRC_RLE_GRAY, width, height); - } else if (source->header.ncolors == 1 && source->header.ncmap == 1) { - source->visual = MAPPEDGRAY; - TRACEMS3(cinfo, 1, JTRC_RLE_MAPGRAY, width, height, - 1 << source->header.cmaplen); - } else if (source->header.ncolors == 1 && source->header.ncmap == 3) { - source->visual = PSEUDOCOLOR; - TRACEMS3(cinfo, 1, JTRC_RLE_MAPPED, width, height, - 1 << source->header.cmaplen); - } else if (source->header.ncolors == 3 && source->header.ncmap == 3) { - source->visual = TRUECOLOR; - TRACEMS3(cinfo, 1, JTRC_RLE_FULLMAP, width, height, - 1 << source->header.cmaplen); - } else if (source->header.ncolors == 3 && source->header.ncmap == 0) { - source->visual = DIRECTCOLOR; - TRACEMS2(cinfo, 1, JTRC_RLE, width, height); - } else - ERREXIT(cinfo, JERR_RLE_UNSUPPORTED); - - if (source->visual == GRAYSCALE || source->visual == MAPPEDGRAY) { - cinfo->in_color_space = JCS_GRAYSCALE; - cinfo->input_components = 1; - } else { - cinfo->in_color_space = JCS_RGB; - cinfo->input_components = 3; - } - - /* - * A place to hold each scanline while it's converted. - * (GRAYSCALE scanlines don't need converting) - */ - if (source->visual != GRAYSCALE) { - source->rle_row = (rle_pixel**) (*cinfo->mem->alloc_sarray) - ((j_common_ptr) cinfo, JPOOL_IMAGE, - (JDIMENSION) width, (JDIMENSION) cinfo->input_components); - } - - /* request a virtual array to hold the image */ - source->image = (*cinfo->mem->request_virt_sarray) - ((j_common_ptr) cinfo, JPOOL_IMAGE, FALSE, - (JDIMENSION) (width * source->header.ncolors), - (JDIMENSION) height, (JDIMENSION) 1); - -#ifdef PROGRESS_REPORT - if (progress != NULL) { - /* count file input as separate pass */ - progress->total_extra_passes++; - } -#endif - - source->pub.buffer_height = 1; -} - - -/* - * Read one row of pixels. - * Called only after load_image has read the image into the virtual array. - * Used for GRAYSCALE, MAPPEDGRAY, TRUECOLOR, and DIRECTCOLOR images. - */ - -METHODDEF(JDIMENSION) -get_rle_row (j_compress_ptr cinfo, cjpeg_source_ptr sinfo) -{ - rle_source_ptr source = (rle_source_ptr) sinfo; - - source->row--; - source->pub.buffer = (*cinfo->mem->access_virt_sarray) - ((j_common_ptr) cinfo, source->image, source->row, (JDIMENSION) 1, FALSE); - - return 1; -} - -/* - * Read one row of pixels. - * Called only after load_image has read the image into the virtual array. - * Used for PSEUDOCOLOR images. - */ - -METHODDEF(JDIMENSION) -get_pseudocolor_row (j_compress_ptr cinfo, cjpeg_source_ptr sinfo) -{ - rle_source_ptr source = (rle_source_ptr) sinfo; - JSAMPROW src_row, dest_row; - JDIMENSION col; - rle_map *colormap; - int val; - - colormap = source->header.cmap; - dest_row = source->pub.buffer[0]; - source->row--; - src_row = * (*cinfo->mem->access_virt_sarray) - ((j_common_ptr) cinfo, source->image, source->row, (JDIMENSION) 1, FALSE); - - for (col = cinfo->image_width; col > 0; col--) { - val = GETJSAMPLE(*src_row++); - *dest_row++ = (JSAMPLE) (colormap[val ] >> 8); - *dest_row++ = (JSAMPLE) (colormap[val + 256] >> 8); - *dest_row++ = (JSAMPLE) (colormap[val + 512] >> 8); - } - - return 1; -} - - -/* - * Load the image into a virtual array. We have to do this because RLE - * files start at the lower left while the JPEG standard has them starting - * in the upper left. This is called the first time we want to get a row - * of input. What we do is load the RLE data into the array and then call - * the appropriate routine to read one row from the array. Before returning, - * we set source->pub.get_pixel_rows so that subsequent calls go straight to - * the appropriate row-reading routine. - */ - -METHODDEF(JDIMENSION) -load_image (j_compress_ptr cinfo, cjpeg_source_ptr sinfo) -{ - rle_source_ptr source = (rle_source_ptr) sinfo; - JDIMENSION row, col; - JSAMPROW scanline, red_ptr, green_ptr, blue_ptr; - rle_pixel **rle_row; - rle_map *colormap; - char channel; -#ifdef PROGRESS_REPORT - cd_progress_ptr progress = (cd_progress_ptr) cinfo->progress; -#endif - - colormap = source->header.cmap; - rle_row = source->rle_row; - - /* Read the RLE data into our virtual array. - * We assume here that (a) rle_pixel is represented the same as JSAMPLE, - * and (b) we are not on a machine where FAR pointers differ from regular. - */ - RLE_CLR_BIT(source->header, RLE_ALPHA); /* don't read the alpha channel */ - -#ifdef PROGRESS_REPORT - if (progress != NULL) { - progress->pub.pass_limit = cinfo->image_height; - progress->pub.pass_counter = 0; - (*progress->pub.progress_monitor) ((j_common_ptr) cinfo); - } -#endif - - switch (source->visual) { - - case GRAYSCALE: - case PSEUDOCOLOR: - for (row = 0; row < cinfo->image_height; row++) { - rle_row = (rle_pixel **) (*cinfo->mem->access_virt_sarray) - ((j_common_ptr) cinfo, source->image, row, (JDIMENSION) 1, TRUE); - rle_getrow(&source->header, rle_row); -#ifdef PROGRESS_REPORT - if (progress != NULL) { - progress->pub.pass_counter++; - (*progress->pub.progress_monitor) ((j_common_ptr) cinfo); - } -#endif - } - break; - - case MAPPEDGRAY: - case TRUECOLOR: - for (row = 0; row < cinfo->image_height; row++) { - scanline = * (*cinfo->mem->access_virt_sarray) - ((j_common_ptr) cinfo, source->image, row, (JDIMENSION) 1, TRUE); - rle_row = source->rle_row; - rle_getrow(&source->header, rle_row); - - for (col = 0; col < cinfo->image_width; col++) { - for (channel = 0; channel < source->header.ncolors; channel++) { - *scanline++ = (JSAMPLE) - (colormap[GETJSAMPLE(rle_row[channel][col]) + 256 * channel] >> 8); - } - } - -#ifdef PROGRESS_REPORT - if (progress != NULL) { - progress->pub.pass_counter++; - (*progress->pub.progress_monitor) ((j_common_ptr) cinfo); - } -#endif - } - break; - - case DIRECTCOLOR: - for (row = 0; row < cinfo->image_height; row++) { - scanline = * (*cinfo->mem->access_virt_sarray) - ((j_common_ptr) cinfo, source->image, row, (JDIMENSION) 1, TRUE); - rle_getrow(&source->header, rle_row); - - red_ptr = rle_row[0]; - green_ptr = rle_row[1]; - blue_ptr = rle_row[2]; - - for (col = cinfo->image_width; col > 0; col--) { - *scanline++ = *red_ptr++; - *scanline++ = *green_ptr++; - *scanline++ = *blue_ptr++; - } - -#ifdef PROGRESS_REPORT - if (progress != NULL) { - progress->pub.pass_counter++; - (*progress->pub.progress_monitor) ((j_common_ptr) cinfo); - } -#endif - } - } - -#ifdef PROGRESS_REPORT - if (progress != NULL) - progress->completed_extra_passes++; -#endif - - /* Set up to call proper row-extraction routine in future */ - if (source->visual == PSEUDOCOLOR) { - source->pub.buffer = source->rle_row; - source->pub.get_pixel_rows = get_pseudocolor_row; - } else { - source->pub.get_pixel_rows = get_rle_row; - } - source->row = cinfo->image_height; - - /* And fetch the topmost (bottommost) row */ - return (*source->pub.get_pixel_rows) (cinfo, sinfo); -} - - -/* - * Finish up at the end of the file. - */ - -METHODDEF(void) -finish_input_rle (j_compress_ptr cinfo, cjpeg_source_ptr sinfo) -{ - /* no work */ -} - - -/* - * The module selection routine for RLE format input. - */ - -GLOBAL(cjpeg_source_ptr) -jinit_read_rle (j_compress_ptr cinfo) -{ - rle_source_ptr source; - - /* Create module interface object */ - source = (rle_source_ptr) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - SIZEOF(rle_source_struct)); - /* Fill in method ptrs */ - source->pub.start_input = start_input_rle; - source->pub.finish_input = finish_input_rle; - source->pub.get_pixel_rows = load_image; - - return (cjpeg_source_ptr) source; -} - -#endif /* RLE_SUPPORTED */ diff --git a/jpg/rdswitch.c b/jpg/rdswitch.c deleted file mode 100644 index 7a839af..0000000 --- a/jpg/rdswitch.c +++ /dev/null @@ -1,365 +0,0 @@ -/* - * rdswitch.c - * - * Copyright (C) 1991-1996, Thomas G. Lane. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file contains routines to process some of cjpeg's more complicated - * command-line switches. Switches processed here are: - * -qtables file Read quantization tables from text file - * -scans file Read scan script from text file - * -quality N[,N,...] Set quality ratings - * -qslots N[,N,...] Set component quantization table selectors - * -sample HxV[,HxV,...] Set component sampling factors - */ - -#include "cdjpeg.h" /* Common decls for cjpeg/djpeg applications */ -#include /* to declare isdigit(), isspace() */ - - -LOCAL(int) -text_getc (FILE * file) -/* Read next char, skipping over any comments (# to end of line) */ -/* A comment/newline sequence is returned as a newline */ -{ - register int ch; - - ch = getc(file); - if (ch == '#') { - do { - ch = getc(file); - } while (ch != '\n' && ch != EOF); - } - return ch; -} - - -LOCAL(boolean) -read_text_integer (FILE * file, long * result, int * termchar) -/* Read an unsigned decimal integer from a file, store it in result */ -/* Reads one trailing character after the integer; returns it in termchar */ -{ - register int ch; - register long val; - - /* Skip any leading whitespace, detect EOF */ - do { - ch = text_getc(file); - if (ch == EOF) { - *termchar = ch; - return FALSE; - } - } while (isspace(ch)); - - if (! isdigit(ch)) { - *termchar = ch; - return FALSE; - } - - val = ch - '0'; - while ((ch = text_getc(file)) != EOF) { - if (! isdigit(ch)) - break; - val *= 10; - val += ch - '0'; - } - *result = val; - *termchar = ch; - return TRUE; -} - - -GLOBAL(boolean) -read_quant_tables (j_compress_ptr cinfo, char * filename, boolean force_baseline) -/* Read a set of quantization tables from the specified file. - * The file is plain ASCII text: decimal numbers with whitespace between. - * Comments preceded by '#' may be included in the file. - * There may be one to NUM_QUANT_TBLS tables in the file, each of 64 values. - * The tables are implicitly numbered 0,1,etc. - * NOTE: does not affect the qslots mapping, which will default to selecting - * table 0 for luminance (or primary) components, 1 for chrominance components. - * You must use -qslots if you want a different component->table mapping. - */ -{ - FILE * fp; - int tblno, i, termchar; - long val; - unsigned int table[DCTSIZE2]; - - if ((fp = fopen(filename, "r")) == NULL) { - fprintf(stderr, "Can't open table file %s\n", filename); - return FALSE; - } - tblno = 0; - - while (read_text_integer(fp, &val, &termchar)) { /* read 1st element of table */ - if (tblno >= NUM_QUANT_TBLS) { - fprintf(stderr, "Too many tables in file %s\n", filename); - fclose(fp); - return FALSE; - } - table[0] = (unsigned int) val; - for (i = 1; i < DCTSIZE2; i++) { - if (! read_text_integer(fp, &val, &termchar)) { - fprintf(stderr, "Invalid table data in file %s\n", filename); - fclose(fp); - return FALSE; - } - table[i] = (unsigned int) val; - } - jpeg_add_quant_table(cinfo, tblno, table, cinfo->q_scale_factor[tblno], - force_baseline); - tblno++; - } - - if (termchar != EOF) { - fprintf(stderr, "Non-numeric data in file %s\n", filename); - fclose(fp); - return FALSE; - } - - fclose(fp); - return TRUE; -} - - -#ifdef C_MULTISCAN_FILES_SUPPORTED - -LOCAL(boolean) -read_scan_integer (FILE * file, long * result, int * termchar) -/* Variant of read_text_integer that always looks for a non-space termchar; - * this simplifies parsing of punctuation in scan scripts. - */ -{ - register int ch; - - if (! read_text_integer(file, result, termchar)) - return FALSE; - ch = *termchar; - while (ch != EOF && isspace(ch)) - ch = text_getc(file); - if (isdigit(ch)) { /* oops, put it back */ - if (ungetc(ch, file) == EOF) - return FALSE; - ch = ' '; - } else { - /* Any separators other than ';' and ':' are ignored; - * this allows user to insert commas, etc, if desired. - */ - if (ch != EOF && ch != ';' && ch != ':') - ch = ' '; - } - *termchar = ch; - return TRUE; -} - - -GLOBAL(boolean) -read_scan_script (j_compress_ptr cinfo, char * filename) -/* Read a scan script from the specified text file. - * Each entry in the file defines one scan to be emitted. - * Entries are separated by semicolons ';'. - * An entry contains one to four component indexes, - * optionally followed by a colon ':' and four progressive-JPEG parameters. - * The component indexes denote which component(s) are to be transmitted - * in the current scan. The first component has index 0. - * Sequential JPEG is used if the progressive-JPEG parameters are omitted. - * The file is free format text: any whitespace may appear between numbers - * and the ':' and ';' punctuation marks. Also, other punctuation (such - * as commas or dashes) can be placed between numbers if desired. - * Comments preceded by '#' may be included in the file. - * Note: we do very little validity checking here; - * jcmaster.c will validate the script parameters. - */ -{ - FILE * fp; - int scanno, ncomps, termchar; - long val; - jpeg_scan_info * scanptr; -#define MAX_SCANS 100 /* quite arbitrary limit */ - jpeg_scan_info scans[MAX_SCANS]; - - if ((fp = fopen(filename, "r")) == NULL) { - fprintf(stderr, "Can't open scan definition file %s\n", filename); - return FALSE; - } - scanptr = scans; - scanno = 0; - - while (read_scan_integer(fp, &val, &termchar)) { - if (scanno >= MAX_SCANS) { - fprintf(stderr, "Too many scans defined in file %s\n", filename); - fclose(fp); - return FALSE; - } - scanptr->component_index[0] = (int) val; - ncomps = 1; - while (termchar == ' ') { - if (ncomps >= MAX_COMPS_IN_SCAN) { - fprintf(stderr, "Too many components in one scan in file %s\n", - filename); - fclose(fp); - return FALSE; - } - if (! read_scan_integer(fp, &val, &termchar)) - goto bogus; - scanptr->component_index[ncomps] = (int) val; - ncomps++; - } - scanptr->comps_in_scan = ncomps; - if (termchar == ':') { - if (! read_scan_integer(fp, &val, &termchar) || termchar != ' ') - goto bogus; - scanptr->Ss = (int) val; - if (! read_scan_integer(fp, &val, &termchar) || termchar != ' ') - goto bogus; - scanptr->Se = (int) val; - if (! read_scan_integer(fp, &val, &termchar) || termchar != ' ') - goto bogus; - scanptr->Ah = (int) val; - if (! read_scan_integer(fp, &val, &termchar)) - goto bogus; - scanptr->Al = (int) val; - } else { - /* set non-progressive parameters */ - scanptr->Ss = 0; - scanptr->Se = DCTSIZE2-1; - scanptr->Ah = 0; - scanptr->Al = 0; - } - if (termchar != ';' && termchar != EOF) { -bogus: - fprintf(stderr, "Invalid scan entry format in file %s\n", filename); - fclose(fp); - return FALSE; - } - scanptr++, scanno++; - } - - if (termchar != EOF) { - fprintf(stderr, "Non-numeric data in file %s\n", filename); - fclose(fp); - return FALSE; - } - - if (scanno > 0) { - /* Stash completed scan list in cinfo structure. - * NOTE: for cjpeg's use, JPOOL_IMAGE is the right lifetime for this data, - * but if you want to compress multiple images you'd want JPOOL_PERMANENT. - */ - scanptr = (jpeg_scan_info *) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - scanno * SIZEOF(jpeg_scan_info)); - MEMCOPY(scanptr, scans, scanno * SIZEOF(jpeg_scan_info)); - cinfo->scan_info = scanptr; - cinfo->num_scans = scanno; - } - - fclose(fp); - return TRUE; -} - -#endif /* C_MULTISCAN_FILES_SUPPORTED */ - - -GLOBAL(boolean) -set_quality_ratings (j_compress_ptr cinfo, char *arg, boolean force_baseline) -/* Process a quality-ratings parameter string, of the form - * N[,N,...] - * If there are more q-table slots than parameters, the last value is replicated. - */ -{ - int val = 75; /* default value */ - int tblno; - char ch; - - for (tblno = 0; tblno < NUM_QUANT_TBLS; tblno++) { - if (*arg) { - ch = ','; /* if not set by sscanf, will be ',' */ - if (sscanf(arg, "%d%c", &val, &ch) < 1) - return FALSE; - if (ch != ',') /* syntax check */ - return FALSE; - /* Convert user 0-100 rating to percentage scaling */ - cinfo->q_scale_factor[tblno] = jpeg_quality_scaling(val); - while (*arg && *arg++ != ',') /* advance to next segment of arg string */ - ; - } else { - /* reached end of parameter, set remaining factors to last value */ - cinfo->q_scale_factor[tblno] = jpeg_quality_scaling(val); - } - } - jpeg_default_qtables(cinfo, force_baseline); - return TRUE; -} - - -GLOBAL(boolean) -set_quant_slots (j_compress_ptr cinfo, char *arg) -/* Process a quantization-table-selectors parameter string, of the form - * N[,N,...] - * If there are more components than parameters, the last value is replicated. - */ -{ - int val = 0; /* default table # */ - int ci; - char ch; - - for (ci = 0; ci < MAX_COMPONENTS; ci++) { - if (*arg) { - ch = ','; /* if not set by sscanf, will be ',' */ - if (sscanf(arg, "%d%c", &val, &ch) < 1) - return FALSE; - if (ch != ',') /* syntax check */ - return FALSE; - if (val < 0 || val >= NUM_QUANT_TBLS) { - fprintf(stderr, "JPEG quantization tables are numbered 0..%d\n", - NUM_QUANT_TBLS-1); - return FALSE; - } - cinfo->comp_info[ci].quant_tbl_no = val; - while (*arg && *arg++ != ',') /* advance to next segment of arg string */ - ; - } else { - /* reached end of parameter, set remaining components to last table */ - cinfo->comp_info[ci].quant_tbl_no = val; - } - } - return TRUE; -} - - -GLOBAL(boolean) -set_sample_factors (j_compress_ptr cinfo, char *arg) -/* Process a sample-factors parameter string, of the form - * HxV[,HxV,...] - * If there are more components than parameters, "1x1" is assumed for the rest. - */ -{ - int ci, val1, val2; - char ch1, ch2; - - for (ci = 0; ci < MAX_COMPONENTS; ci++) { - if (*arg) { - ch2 = ','; /* if not set by sscanf, will be ',' */ - if (sscanf(arg, "%d%c%d%c", &val1, &ch1, &val2, &ch2) < 3) - return FALSE; - if ((ch1 != 'x' && ch1 != 'X') || ch2 != ',') /* syntax check */ - return FALSE; - if (val1 <= 0 || val1 > 4 || val2 <= 0 || val2 > 4) { - fprintf(stderr, "JPEG sampling factors must be 1..4\n"); - return FALSE; - } - cinfo->comp_info[ci].h_samp_factor = val1; - cinfo->comp_info[ci].v_samp_factor = val2; - while (*arg && *arg++ != ',') /* advance to next segment of arg string */ - ; - } else { - /* reached end of parameter, set remaining components to 1x1 sampling */ - cinfo->comp_info[ci].h_samp_factor = 1; - cinfo->comp_info[ci].v_samp_factor = 1; - } - } - return TRUE; -} diff --git a/jpg/rdtarga.c b/jpg/rdtarga.c deleted file mode 100644 index 4c2cd26..0000000 --- a/jpg/rdtarga.c +++ /dev/null @@ -1,500 +0,0 @@ -/* - * rdtarga.c - * - * Copyright (C) 1991-1996, Thomas G. Lane. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file contains routines to read input images in Targa format. - * - * These routines may need modification for non-Unix environments or - * specialized applications. As they stand, they assume input from - * an ordinary stdio stream. They further assume that reading begins - * at the start of the file; start_input may need work if the - * user interface has already read some data (e.g., to determine that - * the file is indeed Targa format). - * - * Based on code contributed by Lee Daniel Crocker. - */ - -#include "cdjpeg.h" /* Common decls for cjpeg/djpeg applications */ - -#ifdef TARGA_SUPPORTED - - -/* Macros to deal with unsigned chars as efficiently as compiler allows */ - -#ifdef HAVE_UNSIGNED_CHAR -typedef unsigned char U_CHAR; -#define UCH(x) ((int) (x)) -#else /* !HAVE_UNSIGNED_CHAR */ -#ifdef CHAR_IS_UNSIGNED -typedef char U_CHAR; -#define UCH(x) ((int) (x)) -#else -typedef char U_CHAR; -#define UCH(x) ((int) (x) & 0xFF) -#endif -#endif /* HAVE_UNSIGNED_CHAR */ - - -#define ReadOK(file,buffer,len) (JFREAD(file,buffer,len) == ((size_t) (len))) - - -/* Private version of data source object */ - -typedef struct _tga_source_struct * tga_source_ptr; - -typedef struct _tga_source_struct { - struct cjpeg_source_struct pub; /* public fields */ - - j_compress_ptr cinfo; /* back link saves passing separate parm */ - - JSAMPARRAY colormap; /* Targa colormap (converted to my format) */ - - jvirt_sarray_ptr whole_image; /* Needed if funny input row order */ - JDIMENSION current_row; /* Current logical row number to read */ - - /* Pointer to routine to extract next Targa pixel from input file */ - JMETHOD(void, read_pixel, (tga_source_ptr sinfo)); - - /* Result of read_pixel is delivered here: */ - U_CHAR tga_pixel[4]; - - int pixel_size; /* Bytes per Targa pixel (1 to 4) */ - - /* State info for reading RLE-coded pixels; both counts must be init to 0 */ - int block_count; /* # of pixels remaining in RLE block */ - int dup_pixel_count; /* # of times to duplicate previous pixel */ - - /* This saves the correct pixel-row-expansion method for preload_image */ - JMETHOD(JDIMENSION, get_pixel_rows, (j_compress_ptr cinfo, - cjpeg_source_ptr sinfo)); -} tga_source_struct; - - -/* For expanding 5-bit pixel values to 8-bit with best rounding */ - -static const UINT8 c5to8bits[32] = { - 0, 8, 16, 25, 33, 41, 49, 58, - 66, 74, 82, 90, 99, 107, 115, 123, - 132, 140, 148, 156, 165, 173, 181, 189, - 197, 206, 214, 222, 230, 239, 247, 255 -}; - - - -LOCAL(int) -read_byte (tga_source_ptr sinfo) -/* Read next byte from Targa file */ -{ - register FILE *infile = sinfo->pub.input_file; - register int c; - - if ((c = getc(infile)) == EOF) - ERREXIT(sinfo->cinfo, JERR_INPUT_EOF); - return c; -} - - -LOCAL(void) -read_colormap (tga_source_ptr sinfo, int cmaplen, int mapentrysize) -/* Read the colormap from a Targa file */ -{ - int i; - - /* Presently only handles 24-bit BGR format */ - if (mapentrysize != 24) - ERREXIT(sinfo->cinfo, JERR_TGA_BADCMAP); - - for (i = 0; i < cmaplen; i++) { - sinfo->colormap[2][i] = (JSAMPLE) read_byte(sinfo); - sinfo->colormap[1][i] = (JSAMPLE) read_byte(sinfo); - sinfo->colormap[0][i] = (JSAMPLE) read_byte(sinfo); - } -} - - -/* - * read_pixel methods: get a single pixel from Targa file into tga_pixel[] - */ - -METHODDEF(void) -read_non_rle_pixel (tga_source_ptr sinfo) -/* Read one Targa pixel from the input file; no RLE expansion */ -{ - register FILE *infile = sinfo->pub.input_file; - register int i; - - for (i = 0; i < sinfo->pixel_size; i++) { - sinfo->tga_pixel[i] = (U_CHAR) getc(infile); - } -} - - -METHODDEF(void) -read_rle_pixel (tga_source_ptr sinfo) -/* Read one Targa pixel from the input file, expanding RLE data as needed */ -{ - register FILE *infile = sinfo->pub.input_file; - register int i; - - /* Duplicate previously read pixel? */ - if (sinfo->dup_pixel_count > 0) { - sinfo->dup_pixel_count--; - return; - } - - /* Time to read RLE block header? */ - if (--sinfo->block_count < 0) { /* decrement pixels remaining in block */ - i = read_byte(sinfo); - if (i & 0x80) { /* Start of duplicate-pixel block? */ - sinfo->dup_pixel_count = i & 0x7F; /* number of dups after this one */ - sinfo->block_count = 0; /* then read new block header */ - } else { - sinfo->block_count = i & 0x7F; /* number of pixels after this one */ - } - } - - /* Read next pixel */ - for (i = 0; i < sinfo->pixel_size; i++) { - sinfo->tga_pixel[i] = (U_CHAR) getc(infile); - } -} - - -/* - * Read one row of pixels. - * - * We provide several different versions depending on input file format. - */ - - -METHODDEF(JDIMENSION) -get_8bit_gray_row (j_compress_ptr cinfo, cjpeg_source_ptr sinfo) -/* This version is for reading 8-bit grayscale pixels */ -{ - tga_source_ptr source = (tga_source_ptr) sinfo; - register JSAMPROW ptr; - register JDIMENSION col; - - ptr = source->pub.buffer[0]; - for (col = cinfo->image_width; col > 0; col--) { - (*source->read_pixel) (source); /* Load next pixel into tga_pixel */ - *ptr++ = (JSAMPLE) UCH(source->tga_pixel[0]); - } - return 1; -} - -METHODDEF(JDIMENSION) -get_8bit_row (j_compress_ptr cinfo, cjpeg_source_ptr sinfo) -/* This version is for reading 8-bit colormap indexes */ -{ - tga_source_ptr source = (tga_source_ptr) sinfo; - register int t; - register JSAMPROW ptr; - register JDIMENSION col; - register JSAMPARRAY colormap = source->colormap; - - ptr = source->pub.buffer[0]; - for (col = cinfo->image_width; col > 0; col--) { - (*source->read_pixel) (source); /* Load next pixel into tga_pixel */ - t = UCH(source->tga_pixel[0]); - *ptr++ = colormap[0][t]; - *ptr++ = colormap[1][t]; - *ptr++ = colormap[2][t]; - } - return 1; -} - -METHODDEF(JDIMENSION) -get_16bit_row (j_compress_ptr cinfo, cjpeg_source_ptr sinfo) -/* This version is for reading 16-bit pixels */ -{ - tga_source_ptr source = (tga_source_ptr) sinfo; - register int t; - register JSAMPROW ptr; - register JDIMENSION col; - - ptr = source->pub.buffer[0]; - for (col = cinfo->image_width; col > 0; col--) { - (*source->read_pixel) (source); /* Load next pixel into tga_pixel */ - t = UCH(source->tga_pixel[0]); - t += UCH(source->tga_pixel[1]) << 8; - /* We expand 5 bit data to 8 bit sample width. - * The format of the 16-bit (LSB first) input word is - * xRRRRRGGGGGBBBBB - */ - ptr[2] = (JSAMPLE) c5to8bits[t & 0x1F]; - t >>= 5; - ptr[1] = (JSAMPLE) c5to8bits[t & 0x1F]; - t >>= 5; - ptr[0] = (JSAMPLE) c5to8bits[t & 0x1F]; - ptr += 3; - } - return 1; -} - -METHODDEF(JDIMENSION) -get_24bit_row (j_compress_ptr cinfo, cjpeg_source_ptr sinfo) -/* This version is for reading 24-bit pixels */ -{ - tga_source_ptr source = (tga_source_ptr) sinfo; - register JSAMPROW ptr; - register JDIMENSION col; - - ptr = source->pub.buffer[0]; - for (col = cinfo->image_width; col > 0; col--) { - (*source->read_pixel) (source); /* Load next pixel into tga_pixel */ - *ptr++ = (JSAMPLE) UCH(source->tga_pixel[2]); /* change BGR to RGB order */ - *ptr++ = (JSAMPLE) UCH(source->tga_pixel[1]); - *ptr++ = (JSAMPLE) UCH(source->tga_pixel[0]); - } - return 1; -} - -/* - * Targa also defines a 32-bit pixel format with order B,G,R,A. - * We presently ignore the attribute byte, so the code for reading - * these pixels is identical to the 24-bit routine above. - * This works because the actual pixel length is only known to read_pixel. - */ - -#define get_32bit_row get_24bit_row - - -/* - * This method is for re-reading the input data in standard top-down - * row order. The entire image has already been read into whole_image - * with proper conversion of pixel format, but it's in a funny row order. - */ - -METHODDEF(JDIMENSION) -get_memory_row (j_compress_ptr cinfo, cjpeg_source_ptr sinfo) -{ - tga_source_ptr source = (tga_source_ptr) sinfo; - JDIMENSION source_row; - - /* Compute row of source that maps to current_row of normal order */ - /* For now, assume image is bottom-up and not interlaced. */ - /* NEEDS WORK to support interlaced images! */ - source_row = cinfo->image_height - source->current_row - 1; - - /* Fetch that row from virtual array */ - source->pub.buffer = (*cinfo->mem->access_virt_sarray) - ((j_common_ptr) cinfo, source->whole_image, - source_row, (JDIMENSION) 1, FALSE); - - source->current_row++; - return 1; -} - - -/* - * This method loads the image into whole_image during the first call on - * get_pixel_rows. The get_pixel_rows pointer is then adjusted to call - * get_memory_row on subsequent calls. - */ - -METHODDEF(JDIMENSION) -preload_image (j_compress_ptr cinfo, cjpeg_source_ptr sinfo) -{ - tga_source_ptr source = (tga_source_ptr) sinfo; - JDIMENSION row; - cd_progress_ptr progress = (cd_progress_ptr) cinfo->progress; - - /* Read the data into a virtual array in input-file row order. */ - for (row = 0; row < cinfo->image_height; row++) { - if (progress != NULL) { - progress->pub.pass_counter = (long) row; - progress->pub.pass_limit = (long) cinfo->image_height; - (*progress->pub.progress_monitor) ((j_common_ptr) cinfo); - } - source->pub.buffer = (*cinfo->mem->access_virt_sarray) - ((j_common_ptr) cinfo, source->whole_image, row, (JDIMENSION) 1, TRUE); - (*source->get_pixel_rows) (cinfo, sinfo); - } - if (progress != NULL) - progress->completed_extra_passes++; - - /* Set up to read from the virtual array in unscrambled order */ - source->pub.get_pixel_rows = get_memory_row; - source->current_row = 0; - /* And read the first row */ - return get_memory_row(cinfo, sinfo); -} - - -/* - * Read the file header; return image size and component count. - */ - -METHODDEF(void) -start_input_tga (j_compress_ptr cinfo, cjpeg_source_ptr sinfo) -{ - tga_source_ptr source = (tga_source_ptr) sinfo; - U_CHAR targaheader[18]; - int idlen, cmaptype, subtype, flags, interlace_type, components; - unsigned int width, height, maplen; - boolean is_bottom_up; - -#define GET_2B(offset) ((unsigned int) UCH(targaheader[offset]) + \ - (((unsigned int) UCH(targaheader[offset+1])) << 8)) - - if (! ReadOK(source->pub.input_file, targaheader, 18)) - ERREXIT(cinfo, JERR_INPUT_EOF); - - /* Pretend "15-bit" pixels are 16-bit --- we ignore attribute bit anyway */ - if (targaheader[16] == 15) - targaheader[16] = 16; - - idlen = UCH(targaheader[0]); - cmaptype = UCH(targaheader[1]); - subtype = UCH(targaheader[2]); - maplen = GET_2B(5); - width = GET_2B(12); - height = GET_2B(14); - source->pixel_size = UCH(targaheader[16]) >> 3; - flags = UCH(targaheader[17]); /* Image Descriptor byte */ - - is_bottom_up = ((flags & 0x20) == 0); /* bit 5 set => top-down */ - interlace_type = flags >> 6; /* bits 6/7 are interlace code */ - - if (cmaptype > 1 || /* cmaptype must be 0 or 1 */ - source->pixel_size < 1 || source->pixel_size > 4 || - (UCH(targaheader[16]) & 7) != 0 || /* bits/pixel must be multiple of 8 */ - interlace_type != 0) /* currently don't allow interlaced image */ - ERREXIT(cinfo, JERR_TGA_BADPARMS); - - if (subtype > 8) { - /* It's an RLE-coded file */ - source->read_pixel = read_rle_pixel; - source->block_count = source->dup_pixel_count = 0; - subtype -= 8; - } else { - /* Non-RLE file */ - source->read_pixel = read_non_rle_pixel; - } - - /* Now should have subtype 1, 2, or 3 */ - components = 3; /* until proven different */ - cinfo->in_color_space = JCS_RGB; - - switch (subtype) { - case 1: /* Colormapped image */ - if (source->pixel_size == 1 && cmaptype == 1) - source->get_pixel_rows = get_8bit_row; - else - ERREXIT(cinfo, JERR_TGA_BADPARMS); - TRACEMS2(cinfo, 1, JTRC_TGA_MAPPED, width, height); - break; - case 2: /* RGB image */ - switch (source->pixel_size) { - case 2: - source->get_pixel_rows = get_16bit_row; - break; - case 3: - source->get_pixel_rows = get_24bit_row; - break; - case 4: - source->get_pixel_rows = get_32bit_row; - break; - default: - ERREXIT(cinfo, JERR_TGA_BADPARMS); - break; - } - TRACEMS2(cinfo, 1, JTRC_TGA, width, height); - break; - case 3: /* Grayscale image */ - components = 1; - cinfo->in_color_space = JCS_GRAYSCALE; - if (source->pixel_size == 1) - source->get_pixel_rows = get_8bit_gray_row; - else - ERREXIT(cinfo, JERR_TGA_BADPARMS); - TRACEMS2(cinfo, 1, JTRC_TGA_GRAY, width, height); - break; - default: - ERREXIT(cinfo, JERR_TGA_BADPARMS); - break; - } - - if (is_bottom_up) { - /* Create a virtual array to buffer the upside-down image. */ - source->whole_image = (*cinfo->mem->request_virt_sarray) - ((j_common_ptr) cinfo, JPOOL_IMAGE, FALSE, - (JDIMENSION) width * components, (JDIMENSION) height, (JDIMENSION) 1); - if (cinfo->progress != NULL) { - cd_progress_ptr progress = (cd_progress_ptr) cinfo->progress; - progress->total_extra_passes++; /* count file input as separate pass */ - } - /* source->pub.buffer will point to the virtual array. */ - source->pub.buffer_height = 1; /* in case anyone looks at it */ - source->pub.get_pixel_rows = preload_image; - } else { - /* Don't need a virtual array, but do need a one-row input buffer. */ - source->whole_image = NULL; - source->pub.buffer = (*cinfo->mem->alloc_sarray) - ((j_common_ptr) cinfo, JPOOL_IMAGE, - (JDIMENSION) width * components, (JDIMENSION) 1); - source->pub.buffer_height = 1; - source->pub.get_pixel_rows = source->get_pixel_rows; - } - - while (idlen--) /* Throw away ID field */ - (void) read_byte(source); - - if (maplen > 0) { - if (maplen > 256 || GET_2B(3) != 0) - ERREXIT(cinfo, JERR_TGA_BADCMAP); - /* Allocate space to store the colormap */ - source->colormap = (*cinfo->mem->alloc_sarray) - ((j_common_ptr) cinfo, JPOOL_IMAGE, (JDIMENSION) maplen, (JDIMENSION) 3); - /* and read it from the file */ - read_colormap(source, (int) maplen, UCH(targaheader[7])); - } else { - if (cmaptype) /* but you promised a cmap! */ - ERREXIT(cinfo, JERR_TGA_BADPARMS); - source->colormap = NULL; - } - - cinfo->input_components = components; - cinfo->data_precision = 8; - cinfo->image_width = width; - cinfo->image_height = height; -} - - -/* - * Finish up at the end of the file. - */ - -METHODDEF(void) -finish_input_tga (j_compress_ptr cinfo, cjpeg_source_ptr sinfo) -{ - /* no work */ -} - - -/* - * The module selection routine for Targa format input. - */ - -GLOBAL(cjpeg_source_ptr) -jinit_read_targa (j_compress_ptr cinfo) -{ - tga_source_ptr source; - - /* Create module interface object */ - source = (tga_source_ptr) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - SIZEOF(tga_source_struct)); - source->cinfo = cinfo; /* make back link for subroutines */ - /* Fill in method ptrs, except get_pixel_rows which start_input sets */ - source->pub.start_input = start_input_tga; - source->pub.finish_input = finish_input_tga; - - return (cjpeg_source_ptr) source; -} - -#endif /* TARGA_SUPPORTED */ diff --git a/jpg/readme.dos b/jpg/readme.dos deleted file mode 100644 index 3267876..0000000 --- a/jpg/readme.dos +++ /dev/null @@ -1,15 +0,0 @@ -This archive contains a DOS-friendly version of the Independent JPEG Group's -source code. It differs from the normal distribution in that: - -1. The archive format is zip rather than tar+gzip. You should be able to -unpack it with PKUNZIP (2.04g or later) or Info-Zip's unzip or 7-Zip. - -2. Newlines have been converted from Unix (LF) to DOS (CR/LF) style in all -text files, but not in the binary files (test*.*). - -3. Object files have been included for jmemdosa.asm. See jdosaobj.txt. - -Please see the main README file for the primary documentation. - -If you'd rather have a non-DOSified archive, see the ARCHIVE LOCATIONS section -of README. diff --git a/jpg/structure.txt b/jpg/structure.txt deleted file mode 100644 index 44e48ca..0000000 --- a/jpg/structure.txt +++ /dev/null @@ -1,941 +0,0 @@ -IJG JPEG LIBRARY: SYSTEM ARCHITECTURE - -Copyright (C) 1991-2012, Thomas G. Lane, Guido Vollbeding. -This file is part of the Independent JPEG Group's software. -For conditions of distribution and use, see the accompanying README file. - - -This file provides an overview of the architecture of the IJG JPEG software; -that is, the functions of the various modules in the system and the interfaces -between modules. For more precise details about any data structure or calling -convention, see the include files and comments in the source code. - -We assume that the reader is already somewhat familiar with the JPEG standard. -The README file includes references for learning about JPEG. The file -libjpeg.txt describes the library from the viewpoint of an application -programmer using the library; it's best to read that file before this one. -Also, the file coderules.txt describes the coding style conventions we use. - -In this document, JPEG-specific terminology follows the JPEG standard: - A "component" means a color channel, e.g., Red or Luminance. - A "sample" is a single component value (i.e., one number in the image data). - A "coefficient" is a frequency coefficient (a DCT transform output number). - A "block" is an array of samples or coefficients. - An "MCU" (minimum coded unit) is an interleaved set of blocks of size - determined by the sampling factors, or a single block in a - noninterleaved scan. -We do not use the terms "pixel" and "sample" interchangeably. When we say -pixel, we mean an element of the full-size image, while a sample is an element -of the downsampled image. Thus the number of samples may vary across -components while the number of pixels does not. (This terminology is not used -rigorously throughout the code, but it is used in places where confusion would -otherwise result.) - - -*** System features *** - -The IJG distribution contains two parts: - * A subroutine library for JPEG compression and decompression. - * cjpeg/djpeg, two sample applications that use the library to transform - JFIF JPEG files to and from several other image formats. -cjpeg/djpeg are of no great intellectual complexity: they merely add a simple -command-line user interface and I/O routines for several uncompressed image -formats. This document concentrates on the library itself. - -We desire the library to be capable of supporting all JPEG baseline, extended -sequential, and progressive DCT processes. The library does not support the -hierarchical or lossless processes defined in the standard. - -Within these limits, any set of compression parameters allowed by the JPEG -spec should be readable for decompression. (We can be more restrictive about -what formats we can generate.) Although the system design allows for all -parameter values, some uncommon settings are not yet implemented and may -never be; nonintegral sampling ratios are the prime example. Furthermore, -we treat 8-bit vs. 12-bit data precision as a compile-time switch, not a -run-time option, because most machines can store 8-bit pixels much more -compactly than 12-bit. - -By itself, the library handles only interchange JPEG datastreams --- in -particular the widely used JFIF file format. The library can be used by -surrounding code to process interchange or abbreviated JPEG datastreams that -are embedded in more complex file formats. (For example, libtiff uses this -library to implement JPEG compression within the TIFF file format.) - -The library includes a substantial amount of code that is not covered by the -JPEG standard but is necessary for typical applications of JPEG. These -functions preprocess the image before JPEG compression or postprocess it after -decompression. They include colorspace conversion, downsampling/upsampling, -and color quantization. This code can be omitted if not needed. - -A wide range of quality vs. speed tradeoffs are possible in JPEG processing, -and even more so in decompression postprocessing. The decompression library -provides multiple implementations that cover most of the useful tradeoffs, -ranging from very-high-quality down to fast-preview operation. On the -compression side we have generally not provided low-quality choices, since -compression is normally less time-critical. It should be understood that the -low-quality modes may not meet the JPEG standard's accuracy requirements; -nonetheless, they are useful for viewers. - - -*** Portability issues *** - -Portability is an essential requirement for the library. The key portability -issues that show up at the level of system architecture are: - -1. Memory usage. We want the code to be able to run on PC-class machines -with limited memory. Images should therefore be processed sequentially (in -strips), to avoid holding the whole image in memory at once. Where a -full-image buffer is necessary, we should be able to use either virtual memory -or temporary files. - -2. Near/far pointer distinction. To run efficiently on 80x86 machines, the -code should distinguish "small" objects (kept in near data space) from -"large" ones (kept in far data space). This is an annoying restriction, but -fortunately it does not impact code quality for less brain-damaged machines, -and the source code clutter turns out to be minimal with sufficient use of -pointer typedefs. - -3. Data precision. We assume that "char" is at least 8 bits, "short" and -"int" at least 16, "long" at least 32. The code will work fine with larger -data sizes, although memory may be used inefficiently in some cases. However, -the JPEG compressed datastream must ultimately appear on external storage as a -sequence of 8-bit bytes if it is to conform to the standard. This may pose a -problem on machines where char is wider than 8 bits. The library represents -compressed data as an array of values of typedef JOCTET. If no data type -exactly 8 bits wide is available, custom data source and data destination -modules must be written to unpack and pack the chosen JOCTET datatype into -8-bit external representation. - - -*** System overview *** - -The compressor and decompressor are each divided into two main sections: -the JPEG compressor or decompressor proper, and the preprocessing or -postprocessing functions. The interface between these two sections is the -image data that the official JPEG spec regards as its input or output: this -data is in the colorspace to be used for compression, and it is downsampled -to the sampling factors to be used. The preprocessing and postprocessing -steps are responsible for converting a normal image representation to or from -this form. (Those few applications that want to deal with YCbCr downsampled -data can skip the preprocessing or postprocessing step.) - -Looking more closely, the compressor library contains the following main -elements: - - Preprocessing: - * Color space conversion (e.g., RGB to YCbCr). - * Edge expansion and downsampling. Optionally, this step can do simple - smoothing --- this is often helpful for low-quality source data. - JPEG proper: - * MCU assembly, DCT, quantization. - * Entropy coding (sequential or progressive, Huffman or arithmetic). - -In addition to these modules we need overall control, marker generation, -and support code (memory management & error handling). There is also a -module responsible for physically writing the output data --- typically -this is just an interface to fwrite(), but some applications may need to -do something else with the data. - -The decompressor library contains the following main elements: - - JPEG proper: - * Entropy decoding (sequential or progressive, Huffman or arithmetic). - * Dequantization, inverse DCT, MCU disassembly. - Postprocessing: - * Upsampling. Optionally, this step may be able to do more general - rescaling of the image. - * Color space conversion (e.g., YCbCr to RGB). This step may also - provide gamma adjustment [ currently it does not ]. - * Optional color quantization (e.g., reduction to 256 colors). - * Optional color precision reduction (e.g., 24-bit to 15-bit color). - [This feature is not currently implemented.] - -We also need overall control, marker parsing, and a data source module. -The support code (memory management & error handling) can be shared with -the compression half of the library. - -There may be several implementations of each of these elements, particularly -in the decompressor, where a wide range of speed/quality tradeoffs is very -useful. It must be understood that some of the best speedups involve -merging adjacent steps in the pipeline. For example, upsampling, color space -conversion, and color quantization might all be done at once when using a -low-quality ordered-dither technique. The system architecture is designed to -allow such merging where appropriate. - - -Note: it is convenient to regard edge expansion (padding to block boundaries) -as a preprocessing/postprocessing function, even though the JPEG spec includes -it in compression/decompression. We do this because downsampling/upsampling -can be simplified a little if they work on padded data: it's not necessary to -have special cases at the right and bottom edges. Therefore the interface -buffer is always an integral number of blocks wide and high, and we expect -compression preprocessing to pad the source data properly. Padding will occur -only to the next block (N-sample) boundary. In an interleaved-scan situation, -additional dummy blocks may be used to fill out MCUs, but the MCU assembly and -disassembly logic will create or discard these blocks internally. (This is -advantageous for speed reasons, since we avoid DCTing the dummy blocks. -It also permits a small reduction in file size, because the compressor can -choose dummy block contents so as to minimize their size in compressed form. -Finally, it makes the interface buffer specification independent of whether -the file is actually interleaved or not.) Applications that wish to deal -directly with the downsampled data must provide similar buffering and padding -for odd-sized images. - - -*** Poor man's object-oriented programming *** - -It should be clear by now that we have a lot of quasi-independent processing -steps, many of which have several possible behaviors. To avoid cluttering the -code with lots of switch statements, we use a simple form of object-style -programming to separate out the different possibilities. - -For example, two different color quantization algorithms could be implemented -as two separate modules that present the same external interface; at runtime, -the calling code will access the proper module indirectly through an "object". - -We can get the limited features we need while staying within portable C. -The basic tool is a function pointer. An "object" is just a struct -containing one or more function pointer fields, each of which corresponds to -a method name in real object-oriented languages. During initialization we -fill in the function pointers with references to whichever module we have -determined we need to use in this run. Then invocation of the module is done -by indirecting through a function pointer; on most machines this is no more -expensive than a switch statement, which would be the only other way of -making the required run-time choice. The really significant benefit, of -course, is keeping the source code clean and well structured. - -We can also arrange to have private storage that varies between different -implementations of the same kind of object. We do this by making all the -module-specific object structs be separately allocated entities, which will -be accessed via pointers in the master compression or decompression struct. -The "public" fields or methods for a given kind of object are specified by -a commonly known struct. But a module's initialization code can allocate -a larger struct that contains the common struct as its first member, plus -additional private fields. With appropriate pointer casting, the module's -internal functions can access these private fields. (For a simple example, -see jdatadst.c, which implements the external interface specified by struct -jpeg_destination_mgr, but adds extra fields.) - -(Of course this would all be a lot easier if we were using C++, but we are -not yet prepared to assume that everyone has a C++ compiler.) - -An important benefit of this scheme is that it is easy to provide multiple -versions of any method, each tuned to a particular case. While a lot of -precalculation might be done to select an optimal implementation of a method, -the cost per invocation is constant. For example, the upsampling step might -have a "generic" method, plus one or more "hardwired" methods for the most -popular sampling factors; the hardwired methods would be faster because they'd -use straight-line code instead of for-loops. The cost to determine which -method to use is paid only once, at startup, and the selection criteria are -hidden from the callers of the method. - -This plan differs a little bit from usual object-oriented structures, in that -only one instance of each object class will exist during execution. The -reason for having the class structure is that on different runs we may create -different instances (choose to execute different modules). You can think of -the term "method" as denoting the common interface presented by a particular -set of interchangeable functions, and "object" as denoting a group of related -methods, or the total shared interface behavior of a group of modules. - - -*** Overall control structure *** - -We previously mentioned the need for overall control logic in the compression -and decompression libraries. In IJG implementations prior to v5, overall -control was mostly provided by "pipeline control" modules, which proved to be -large, unwieldy, and hard to understand. To improve the situation, the -control logic has been subdivided into multiple modules. The control modules -consist of: - -1. Master control for module selection and initialization. This has two -responsibilities: - - 1A. Startup initialization at the beginning of image processing. - The individual processing modules to be used in this run are selected - and given initialization calls. - - 1B. Per-pass control. This determines how many passes will be performed - and calls each active processing module to configure itself - appropriately at the beginning of each pass. End-of-pass processing, - where necessary, is also invoked from the master control module. - - Method selection is partially distributed, in that a particular processing - module may contain several possible implementations of a particular method, - which it will select among when given its initialization call. The master - control code need only be concerned with decisions that affect more than - one module. - -2. Data buffering control. A separate control module exists for each - inter-processing-step data buffer. This module is responsible for - invoking the processing steps that write or read that data buffer. - -Each buffer controller sees the world as follows: - -input data => processing step A => buffer => processing step B => output data - | | | - ------------------ controller ------------------ - -The controller knows the dataflow requirements of steps A and B: how much data -they want to accept in one chunk and how much they output in one chunk. Its -function is to manage its buffer and call A and B at the proper times. - -A data buffer control module may itself be viewed as a processing step by a -higher-level control module; thus the control modules form a binary tree with -elementary processing steps at the leaves of the tree. - -The control modules are objects. A considerable amount of flexibility can -be had by replacing implementations of a control module. For example: -* Merging of adjacent steps in the pipeline is done by replacing a control - module and its pair of processing-step modules with a single processing- - step module. (Hence the possible merges are determined by the tree of - control modules.) -* In some processing modes, a given interstep buffer need only be a "strip" - buffer large enough to accommodate the desired data chunk sizes. In other - modes, a full-image buffer is needed and several passes are required. - The control module determines which kind of buffer is used and manipulates - virtual array buffers as needed. One or both processing steps may be - unaware of the multi-pass behavior. - -In theory, we might be able to make all of the data buffer controllers -interchangeable and provide just one set of implementations for all. In -practice, each one contains considerable special-case processing for its -particular job. The buffer controller concept should be regarded as an -overall system structuring principle, not as a complete description of the -task performed by any one controller. - - -*** Compression object structure *** - -Here is a sketch of the logical structure of the JPEG compression library: - - |-- Colorspace conversion - |-- Preprocessing controller --| - | |-- Downsampling -Main controller --| - | |-- Forward DCT, quantize - |-- Coefficient controller --| - |-- Entropy encoding - -This sketch also describes the flow of control (subroutine calls) during -typical image data processing. Each of the components shown in the diagram is -an "object" which may have several different implementations available. One -or more source code files contain the actual implementation(s) of each object. - -The objects shown above are: - -* Main controller: buffer controller for the subsampled-data buffer, which - holds the preprocessed input data. This controller invokes preprocessing to - fill the subsampled-data buffer, and JPEG compression to empty it. There is - usually no need for a full-image buffer here; a strip buffer is adequate. - -* Preprocessing controller: buffer controller for the downsampling input data - buffer, which lies between colorspace conversion and downsampling. Note - that a unified conversion/downsampling module would probably replace this - controller entirely. - -* Colorspace conversion: converts application image data into the desired - JPEG color space; also changes the data from pixel-interleaved layout to - separate component planes. Processes one pixel row at a time. - -* Downsampling: performs reduction of chroma components as required. - Optionally may perform pixel-level smoothing as well. Processes a "row - group" at a time, where a row group is defined as Vmax pixel rows of each - component before downsampling, and Vk sample rows afterwards (remember Vk - differs across components). Some downsampling or smoothing algorithms may - require context rows above and below the current row group; the - preprocessing controller is responsible for supplying these rows via proper - buffering. The downsampler is responsible for edge expansion at the right - edge (i.e., extending each sample row to a multiple of N samples); but the - preprocessing controller is responsible for vertical edge expansion (i.e., - duplicating the bottom sample row as needed to make a multiple of N rows). - -* Coefficient controller: buffer controller for the DCT-coefficient data. - This controller handles MCU assembly, including insertion of dummy DCT - blocks when needed at the right or bottom edge. When performing - Huffman-code optimization or emitting a multiscan JPEG file, this - controller is responsible for buffering the full image. The equivalent of - one fully interleaved MCU row of subsampled data is processed per call, - even when the JPEG file is noninterleaved. - -* Forward DCT and quantization: Perform DCT, quantize, and emit coefficients. - Works on one or more DCT blocks at a time. (Note: the coefficients are now - emitted in normal array order, which the entropy encoder is expected to - convert to zigzag order as necessary. Prior versions of the IJG code did - the conversion to zigzag order within the quantization step.) - -* Entropy encoding: Perform Huffman or arithmetic entropy coding and emit the - coded data to the data destination module. Works on one MCU per call. - For progressive JPEG, the same DCT blocks are fed to the entropy coder - during each pass, and the coder must emit the appropriate subset of - coefficients. - -In addition to the above objects, the compression library includes these -objects: - -* Master control: determines the number of passes required, controls overall - and per-pass initialization of the other modules. - -* Marker writing: generates JPEG markers (except for RSTn, which is emitted - by the entropy encoder when needed). - -* Data destination manager: writes the output JPEG datastream to its final - destination (e.g., a file). The destination manager supplied with the - library knows how to write to a stdio stream or to a memory buffer; - for other behaviors, the surrounding application may provide its own - destination manager. - -* Memory manager: allocates and releases memory, controls virtual arrays - (with backing store management, where required). - -* Error handler: performs formatting and output of error and trace messages; - determines handling of nonfatal errors. The surrounding application may - override some or all of this object's methods to change error handling. - -* Progress monitor: supports output of "percent-done" progress reports. - This object represents an optional callback to the surrounding application: - if wanted, it must be supplied by the application. - -The error handler, destination manager, and progress monitor objects are -defined as separate objects in order to simplify application-specific -customization of the JPEG library. A surrounding application may override -individual methods or supply its own all-new implementation of one of these -objects. The object interfaces for these objects are therefore treated as -part of the application interface of the library, whereas the other objects -are internal to the library. - -The error handler and memory manager are shared by JPEG compression and -decompression; the progress monitor, if used, may be shared as well. - - -*** Decompression object structure *** - -Here is a sketch of the logical structure of the JPEG decompression library: - - |-- Entropy decoding - |-- Coefficient controller --| - | |-- Dequantize, Inverse DCT -Main controller --| - | |-- Upsampling - |-- Postprocessing controller --| |-- Colorspace conversion - |-- Color quantization - |-- Color precision reduction - -As before, this diagram also represents typical control flow. The objects -shown are: - -* Main controller: buffer controller for the subsampled-data buffer, which - holds the output of JPEG decompression proper. This controller's primary - task is to feed the postprocessing procedure. Some upsampling algorithms - may require context rows above and below the current row group; when this - is true, the main controller is responsible for managing its buffer so as - to make context rows available. In the current design, the main buffer is - always a strip buffer; a full-image buffer is never required. - -* Coefficient controller: buffer controller for the DCT-coefficient data. - This controller handles MCU disassembly, including deletion of any dummy - DCT blocks at the right or bottom edge. When reading a multiscan JPEG - file, this controller is responsible for buffering the full image. - (Buffering DCT coefficients, rather than samples, is necessary to support - progressive JPEG.) The equivalent of one fully interleaved MCU row of - subsampled data is processed per call, even when the source JPEG file is - noninterleaved. - -* Entropy decoding: Read coded data from the data source module and perform - Huffman or arithmetic entropy decoding. Works on one MCU per call. - For progressive JPEG decoding, the coefficient controller supplies the prior - coefficients of each MCU (initially all zeroes), which the entropy decoder - modifies in each scan. - -* Dequantization and inverse DCT: like it says. Note that the coefficients - buffered by the coefficient controller have NOT been dequantized; we - merge dequantization and inverse DCT into a single step for speed reasons. - When scaled-down output is asked for, simplified DCT algorithms may be used - that need fewer coefficients and emit fewer samples per DCT block, not the - full 8x8. Works on one DCT block at a time. - -* Postprocessing controller: buffer controller for the color quantization - input buffer, when quantization is in use. (Without quantization, this - controller just calls the upsampler.) For two-pass quantization, this - controller is responsible for buffering the full-image data. - -* Upsampling: restores chroma components to full size. (May support more - general output rescaling, too. Note that if undersized DCT outputs have - been emitted by the DCT module, this module must adjust so that properly - sized outputs are created.) Works on one row group at a time. This module - also calls the color conversion module, so its top level is effectively a - buffer controller for the upsampling->color conversion buffer. However, in - all but the highest-quality operating modes, upsampling and color - conversion are likely to be merged into a single step. - -* Colorspace conversion: convert from JPEG color space to output color space, - and change data layout from separate component planes to pixel-interleaved. - Works on one pixel row at a time. - -* Color quantization: reduce the data to colormapped form, using either an - externally specified colormap or an internally generated one. This module - is not used for full-color output. Works on one pixel row at a time; may - require two passes to generate a color map. Note that the output will - always be a single component representing colormap indexes. In the current - design, the output values are JSAMPLEs, so an 8-bit compilation cannot - quantize to more than 256 colors. This is unlikely to be a problem in - practice. - -* Color reduction: this module handles color precision reduction, e.g., - generating 15-bit color (5 bits/primary) from JPEG's 24-bit output. - Not quite clear yet how this should be handled... should we merge it with - colorspace conversion??? - -Note that some high-speed operating modes might condense the entire -postprocessing sequence to a single module (upsample, color convert, and -quantize in one step). - -In addition to the above objects, the decompression library includes these -objects: - -* Master control: determines the number of passes required, controls overall - and per-pass initialization of the other modules. This is subdivided into - input and output control: jdinput.c controls only input-side processing, - while jdmaster.c handles overall initialization and output-side control. - -* Marker reading: decodes JPEG markers (except for RSTn). - -* Data source manager: supplies the input JPEG datastream. The source - manager supplied with the library knows how to read from a stdio stream - or from a memory buffer; for other behaviors, the surrounding application - may provide its own source manager. - -* Memory manager: same as for compression library. - -* Error handler: same as for compression library. - -* Progress monitor: same as for compression library. - -As with compression, the data source manager, error handler, and progress -monitor are candidates for replacement by a surrounding application. - - -*** Decompression input and output separation *** - -To support efficient incremental display of progressive JPEG files, the -decompressor is divided into two sections that can run independently: - -1. Data input includes marker parsing, entropy decoding, and input into the - coefficient controller's DCT coefficient buffer. Note that this - processing is relatively cheap and fast. - -2. Data output reads from the DCT coefficient buffer and performs the IDCT - and all postprocessing steps. - -For a progressive JPEG file, the data input processing is allowed to get -arbitrarily far ahead of the data output processing. (This occurs only -if the application calls jpeg_consume_input(); otherwise input and output -run in lockstep, since the input section is called only when the output -section needs more data.) In this way the application can avoid making -extra display passes when data is arriving faster than the display pass -can run. Furthermore, it is possible to abort an output pass without -losing anything, since the coefficient buffer is read-only as far as the -output section is concerned. See libjpeg.txt for more detail. - -A full-image coefficient array is only created if the JPEG file has multiple -scans (or if the application specifies buffered-image mode anyway). When -reading a single-scan file, the coefficient controller normally creates only -a one-MCU buffer, so input and output processing must run in lockstep in this -case. jpeg_consume_input() is effectively a no-op in this situation. - -The main impact of dividing the decompressor in this fashion is that we must -be very careful with shared variables in the cinfo data structure. Each -variable that can change during the course of decompression must be -classified as belonging to data input or data output, and each section must -look only at its own variables. For example, the data output section may not -depend on any of the variables that describe the current scan in the JPEG -file, because these may change as the data input section advances into a new -scan. - -The progress monitor is (somewhat arbitrarily) defined to treat input of the -file as one pass when buffered-image mode is not used, and to ignore data -input work completely when buffered-image mode is used. Note that the -library has no reliable way to predict the number of passes when dealing -with a progressive JPEG file, nor can it predict the number of output passes -in buffered-image mode. So the work estimate is inherently bogus anyway. - -No comparable division is currently made in the compression library, because -there isn't any real need for it. - - -*** Data formats *** - -Arrays of pixel sample values use the following data structure: - - typedef something JSAMPLE; a pixel component value, 0..MAXJSAMPLE - typedef JSAMPLE *JSAMPROW; ptr to a row of samples - typedef JSAMPROW *JSAMPARRAY; ptr to a list of rows - typedef JSAMPARRAY *JSAMPIMAGE; ptr to a list of color-component arrays - -The basic element type JSAMPLE will typically be one of unsigned char, -(signed) char, or short. Short will be used if samples wider than 8 bits are -to be supported (this is a compile-time option). Otherwise, unsigned char is -used if possible. If the compiler only supports signed chars, then it is -necessary to mask off the value when reading. Thus, all reads of JSAMPLE -values must be coded as "GETJSAMPLE(value)", where the macro will be defined -as "((value) & 0xFF)" on signed-char machines and "((int) (value))" elsewhere. - -With these conventions, JSAMPLE values can be assumed to be >= 0. This helps -simplify correct rounding during downsampling, etc. The JPEG standard's -specification that sample values run from -128..127 is accommodated by -subtracting 128 from the sample value in the DCT step. Similarly, during -decompression the output of the IDCT step will be immediately shifted back to -0..255. (NB: different values are required when 12-bit samples are in use. -The code is written in terms of MAXJSAMPLE and CENTERJSAMPLE, which will be -defined as 255 and 128 respectively in an 8-bit implementation, and as 4095 -and 2048 in a 12-bit implementation.) - -We use a pointer per row, rather than a two-dimensional JSAMPLE array. This -choice costs only a small amount of memory and has several benefits: -* Code using the data structure doesn't need to know the allocated width of - the rows. This simplifies edge expansion/compression, since we can work - in an array that's wider than the logical picture width. -* Indexing doesn't require multiplication; this is a performance win on many - machines. -* Arrays with more than 64K total elements can be supported even on machines - where malloc() cannot allocate chunks larger than 64K. -* The rows forming a component array may be allocated at different times - without extra copying. This trick allows some speedups in smoothing steps - that need access to the previous and next rows. - -Note that each color component is stored in a separate array; we don't use the -traditional layout in which the components of a pixel are stored together. -This simplifies coding of modules that work on each component independently, -because they don't need to know how many components there are. Furthermore, -we can read or write each component to a temporary file independently, which -is helpful when dealing with noninterleaved JPEG files. - -In general, a specific sample value is accessed by code such as - GETJSAMPLE(image[colorcomponent][row][col]) -where col is measured from the image left edge, but row is measured from the -first sample row currently in memory. Either of the first two indexings can -be precomputed by copying the relevant pointer. - - -Since most image-processing applications prefer to work on images in which -the components of a pixel are stored together, the data passed to or from the -surrounding application uses the traditional convention: a single pixel is -represented by N consecutive JSAMPLE values, and an image row is an array of -(# of color components)*(image width) JSAMPLEs. One or more rows of data can -be represented by a pointer of type JSAMPARRAY in this scheme. This scheme is -converted to component-wise storage inside the JPEG library. (Applications -that want to skip JPEG preprocessing or postprocessing will have to contend -with component-wise storage.) - - -Arrays of DCT-coefficient values use the following data structure: - - typedef short JCOEF; a 16-bit signed integer - typedef JCOEF JBLOCK[DCTSIZE2]; an 8x8 block of coefficients - typedef JBLOCK *JBLOCKROW; ptr to one horizontal row of 8x8 blocks - typedef JBLOCKROW *JBLOCKARRAY; ptr to a list of such rows - typedef JBLOCKARRAY *JBLOCKIMAGE; ptr to a list of color component arrays - -The underlying type is at least a 16-bit signed integer; while "short" is big -enough on all machines of interest, on some machines it is preferable to use -"int" for speed reasons, despite the storage cost. Coefficients are grouped -into 8x8 blocks (but we always use #defines DCTSIZE and DCTSIZE2 rather than -"8" and "64"). - -The contents of a coefficient block may be in either "natural" or zigzagged -order, and may be true values or divided by the quantization coefficients, -depending on where the block is in the processing pipeline. In the current -library, coefficient blocks are kept in natural order everywhere; the entropy -codecs zigzag or dezigzag the data as it is written or read. The blocks -contain quantized coefficients everywhere outside the DCT/IDCT subsystems. -(This latter decision may need to be revisited to support variable -quantization a la JPEG Part 3.) - -Notice that the allocation unit is now a row of 8x8 coefficient blocks, -corresponding to N rows of samples. Otherwise the structure is much the same -as for samples, and for the same reasons. - -On machines where malloc() can't handle a request bigger than 64Kb, this data -structure limits us to rows of less than 512 JBLOCKs, or a picture width of -4000+ pixels. This seems an acceptable restriction. - - -On 80x86 machines, the bottom-level pointer types (JSAMPROW and JBLOCKROW) -must be declared as "far" pointers, but the upper levels can be "near" -(implying that the pointer lists are allocated in the DS segment). -We use a #define symbol FAR, which expands to the "far" keyword when -compiling on 80x86 machines and to nothing elsewhere. - - -*** Suspendable processing *** - -In some applications it is desirable to use the JPEG library as an -incremental, memory-to-memory filter. In this situation the data source or -destination may be a limited-size buffer, and we can't rely on being able to -empty or refill the buffer at arbitrary times. Instead the application would -like to have control return from the library at buffer overflow/underrun, and -then resume compression or decompression at a later time. - -This scenario is supported for simple cases. (For anything more complex, we -recommend that the application "bite the bullet" and develop real multitasking -capability.) The libjpeg.txt file goes into more detail about the usage and -limitations of this capability; here we address the implications for library -structure. - -The essence of the problem is that the entropy codec (coder or decoder) must -be prepared to stop at arbitrary times. In turn, the controllers that call -the entropy codec must be able to stop before having produced or consumed all -the data that they normally would handle in one call. That part is reasonably -straightforward: we make the controller call interfaces include "progress -counters" which indicate the number of data chunks successfully processed, and -we require callers to test the counter rather than just assume all of the data -was processed. - -Rather than trying to restart at an arbitrary point, the current Huffman -codecs are designed to restart at the beginning of the current MCU after a -suspension due to buffer overflow/underrun. At the start of each call, the -codec's internal state is loaded from permanent storage (in the JPEG object -structures) into local variables. On successful completion of the MCU, the -permanent state is updated. (This copying is not very expensive, and may even -lead to *improved* performance if the local variables can be registerized.) -If a suspension occurs, the codec simply returns without updating the state, -thus effectively reverting to the start of the MCU. Note that this implies -leaving some data unprocessed in the source/destination buffer (ie, the -compressed partial MCU). The data source/destination module interfaces are -specified so as to make this possible. This also implies that the data buffer -must be large enough to hold a worst-case compressed MCU; a couple thousand -bytes should be enough. - -In a successive-approximation AC refinement scan, the progressive Huffman -decoder has to be able to undo assignments of newly nonzero coefficients if it -suspends before the MCU is complete, since decoding requires distinguishing -previously-zero and previously-nonzero coefficients. This is a bit tedious -but probably won't have much effect on performance. Other variants of Huffman -decoding need not worry about this, since they will just store the same values -again if forced to repeat the MCU. - -This approach would probably not work for an arithmetic codec, since its -modifiable state is quite large and couldn't be copied cheaply. Instead it -would have to suspend and resume exactly at the point of the buffer end. - -The JPEG marker reader is designed to cope with suspension at an arbitrary -point. It does so by backing up to the start of the marker parameter segment, -so the data buffer must be big enough to hold the largest marker of interest. -Again, a couple KB should be adequate. (A special "skip" convention is used -to bypass COM and APPn markers, so these can be larger than the buffer size -without causing problems; otherwise a 64K buffer would be needed in the worst -case.) - -The JPEG marker writer currently does *not* cope with suspension. -We feel that this is not necessary; it is much easier simply to require -the application to ensure there is enough buffer space before starting. (An -empty 2K buffer is more than sufficient for the header markers; and ensuring -there are a dozen or two bytes available before calling jpeg_finish_compress() -will suffice for the trailer.) This would not work for writing multi-scan -JPEG files, but we simply do not intend to support that capability with -suspension. - - -*** Memory manager services *** - -The JPEG library's memory manager controls allocation and deallocation of -memory, and it manages large "virtual" data arrays on machines where the -operating system does not provide virtual memory. Note that the same -memory manager serves both compression and decompression operations. - -In all cases, allocated objects are tied to a particular compression or -decompression master record, and they will be released when that master -record is destroyed. - -The memory manager does not provide explicit deallocation of objects. -Instead, objects are created in "pools" of free storage, and a whole pool -can be freed at once. This approach helps prevent storage-leak bugs, and -it speeds up operations whenever malloc/free are slow (as they often are). -The pools can be regarded as lifetime identifiers for objects. Two -pools/lifetimes are defined: - * JPOOL_PERMANENT lasts until master record is destroyed - * JPOOL_IMAGE lasts until done with image (JPEG datastream) -Permanent lifetime is used for parameters and tables that should be carried -across from one datastream to another; this includes all application-visible -parameters. Image lifetime is used for everything else. (A third lifetime, -JPOOL_PASS = one processing pass, was originally planned. However it was -dropped as not being worthwhile. The actual usage patterns are such that the -peak memory usage would be about the same anyway; and having per-pass storage -substantially complicates the virtual memory allocation rules --- see below.) - -The memory manager deals with three kinds of object: -1. "Small" objects. Typically these require no more than 10K-20K total. -2. "Large" objects. These may require tens to hundreds of K depending on - image size. Semantically they behave the same as small objects, but we - distinguish them for two reasons: - * On MS-DOS machines, large objects are referenced by FAR pointers, - small objects by NEAR pointers. - * Pool allocation heuristics may differ for large and small objects. - Note that individual "large" objects cannot exceed the size allowed by - type size_t, which may be 64K or less on some machines. -3. "Virtual" objects. These are large 2-D arrays of JSAMPLEs or JBLOCKs - (typically large enough for the entire image being processed). The - memory manager provides stripwise access to these arrays. On machines - without virtual memory, the rest of the array may be swapped out to a - temporary file. - -(Note: JSAMPARRAY and JBLOCKARRAY data structures are a combination of large -objects for the data proper and small objects for the row pointers. For -convenience and speed, the memory manager provides single routines to create -these structures. Similarly, virtual arrays include a small control block -and a JSAMPARRAY or JBLOCKARRAY working buffer, all created with one call.) - -In the present implementation, virtual arrays are only permitted to have image -lifespan. (Permanent lifespan would not be reasonable, and pass lifespan is -not very useful since a virtual array's raison d'etre is to store data for -multiple passes through the image.) We also expect that only "small" objects -will be given permanent lifespan, though this restriction is not required by -the memory manager. - -In a non-virtual-memory machine, some performance benefit can be gained by -making the in-memory buffers for virtual arrays be as large as possible. -(For small images, the buffers might fit entirely in memory, so blind -swapping would be very wasteful.) The memory manager will adjust the height -of the buffers to fit within a prespecified maximum memory usage. In order -to do this in a reasonably optimal fashion, the manager needs to allocate all -of the virtual arrays at once. Therefore, there isn't a one-step allocation -routine for virtual arrays; instead, there is a "request" routine that simply -allocates the control block, and a "realize" routine (called just once) that -determines space allocation and creates all of the actual buffers. The -realize routine must allow for space occupied by non-virtual large objects. -(We don't bother to factor in the space needed for small objects, on the -grounds that it isn't worth the trouble.) - -To support all this, we establish the following protocol for doing business -with the memory manager: - 1. Modules must request virtual arrays (which may have only image lifespan) - during the initial setup phase, i.e., in their jinit_xxx routines. - 2. All "large" objects (including JSAMPARRAYs and JBLOCKARRAYs) must also be - allocated during initial setup. - 3. realize_virt_arrays will be called at the completion of initial setup. - The above conventions ensure that sufficient information is available - for it to choose a good size for virtual array buffers. -Small objects of any lifespan may be allocated at any time. We expect that -the total space used for small objects will be small enough to be negligible -in the realize_virt_arrays computation. - -In a virtual-memory machine, we simply pretend that the available space is -infinite, thus causing realize_virt_arrays to decide that it can allocate all -the virtual arrays as full-size in-memory buffers. The overhead of the -virtual-array access protocol is very small when no swapping occurs. - -A virtual array can be specified to be "pre-zeroed"; when this flag is set, -never-yet-written sections of the array are set to zero before being made -available to the caller. If this flag is not set, never-written sections -of the array contain garbage. (This feature exists primarily because the -equivalent logic would otherwise be needed in jdcoefct.c for progressive -JPEG mode; we may as well make it available for possible other uses.) - -The first write pass on a virtual array is required to occur in top-to-bottom -order; read passes, as well as any write passes after the first one, may -access the array in any order. This restriction exists partly to simplify -the virtual array control logic, and partly because some file systems may not -support seeking beyond the current end-of-file in a temporary file. The main -implication of this restriction is that rearrangement of rows (such as -converting top-to-bottom data order to bottom-to-top) must be handled while -reading data out of the virtual array, not while putting it in. - - -*** Memory manager internal structure *** - -To isolate system dependencies as much as possible, we have broken the -memory manager into two parts. There is a reasonably system-independent -"front end" (jmemmgr.c) and a "back end" that contains only the code -likely to change across systems. All of the memory management methods -outlined above are implemented by the front end. The back end provides -the following routines for use by the front end (none of these routines -are known to the rest of the JPEG code): - -jpeg_mem_init, jpeg_mem_term system-dependent initialization/shutdown - -jpeg_get_small, jpeg_free_small interface to malloc and free library routines - (or their equivalents) - -jpeg_get_large, jpeg_free_large interface to FAR malloc/free in MSDOS machines; - else usually the same as - jpeg_get_small/jpeg_free_small - -jpeg_mem_available estimate available memory - -jpeg_open_backing_store create a backing-store object - -read_backing_store, manipulate a backing-store object -write_backing_store, -close_backing_store - -On some systems there will be more than one type of backing-store object -(specifically, in MS-DOS a backing store file might be an area of extended -memory as well as a disk file). jpeg_open_backing_store is responsible for -choosing how to implement a given object. The read/write/close routines -are method pointers in the structure that describes a given object; this -lets them be different for different object types. - -It may be necessary to ensure that backing store objects are explicitly -released upon abnormal program termination. For example, MS-DOS won't free -extended memory by itself. To support this, we will expect the main program -or surrounding application to arrange to call self_destruct (typically via -jpeg_destroy) upon abnormal termination. This may require a SIGINT signal -handler or equivalent. We don't want to have the back end module install its -own signal handler, because that would pre-empt the surrounding application's -ability to control signal handling. - -The IJG distribution includes several memory manager back end implementations. -Usually the same back end should be suitable for all applications on a given -system, but it is possible for an application to supply its own back end at -need. - - -*** Implications of DNL marker *** - -Some JPEG files may use a DNL marker to postpone definition of the image -height (this would be useful for a fax-like scanner's output, for instance). -In these files the SOF marker claims the image height is 0, and you only -find out the true image height at the end of the first scan. - -We could read these files as follows: -1. Upon seeing zero image height, replace it by 65535 (the maximum allowed). -2. When the DNL is found, update the image height in the global image - descriptor. -This implies that control modules must avoid making copies of the image -height, and must re-test for termination after each MCU row. This would -be easy enough to do. - -In cases where image-size data structures are allocated, this approach will -result in very inefficient use of virtual memory or much-larger-than-necessary -temporary files. This seems acceptable for something that probably won't be a -mainstream usage. People might have to forgo use of memory-hogging options -(such as two-pass color quantization or noninterleaved JPEG files) if they -want efficient conversion of such files. (One could improve efficiency by -demanding a user-supplied upper bound for the height, less than 65536; in most -cases it could be much less.) - -The standard also permits the SOF marker to overestimate the image height, -with a DNL to give the true, smaller height at the end of the first scan. -This would solve the space problems if the overestimate wasn't too great. -However, it implies that you don't even know whether DNL will be used. - -This leads to a couple of very serious objections: -1. Testing for a DNL marker must occur in the inner loop of the decompressor's - Huffman decoder; this implies a speed penalty whether the feature is used - or not. -2. There is no way to hide the last-minute change in image height from an - application using the decoder. Thus *every* application using the IJG - library would suffer a complexity penalty whether it cared about DNL or - not. -We currently do not support DNL because of these problems. - -A different approach is to insist that DNL-using files be preprocessed by a -separate program that reads ahead to the DNL, then goes back and fixes the SOF -marker. This is a much simpler solution and is probably far more efficient. -Even if one wants piped input, buffering the first scan of the JPEG file needs -a lot smaller temp file than is implied by the maximum-height method. For -this approach we'd simply treat DNL as a no-op in the decompressor (at most, -check that it matches the SOF image height). - -We will not worry about making the compressor capable of outputting DNL. -Something similar to the first scheme above could be applied if anyone ever -wants to make that work. diff --git a/jpg/testimg.bmp b/jpg/testimg.bmp deleted file mode 100644 index 012223e..0000000 Binary files a/jpg/testimg.bmp and /dev/null differ diff --git a/jpg/testimg.jpg b/jpg/testimg.jpg deleted file mode 100644 index a026e48..0000000 Binary files a/jpg/testimg.jpg and /dev/null differ diff --git a/jpg/testimg.ppm b/jpg/testimg.ppm deleted file mode 100644 index bd78ef8..0000000 --- a/jpg/testimg.ppm +++ /dev/null @@ -1,4 +0,0 @@ -P6 -227 149 -255 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/* to declare isdigit() */ - - -#if TRANSFORMS_SUPPORTED - -/* - * Lossless image transformation routines. These routines work on DCT - * coefficient arrays and thus do not require any lossy decompression - * or recompression of the image. - * Thanks to Guido Vollbeding for the initial design and code of this feature, - * and to Ben Jackson for introducing the cropping feature. - * - * Horizontal flipping is done in-place, using a single top-to-bottom - * pass through the virtual source array. It will thus be much the - * fastest option for images larger than main memory. - * - * The other routines require a set of destination virtual arrays, so they - * need twice as much memory as jpegtran normally does. The destination - * arrays are always written in normal scan order (top to bottom) because - * the virtual array manager expects this. The source arrays will be scanned - * in the corresponding order, which means multiple passes through the source - * arrays for most of the transforms. That could result in much thrashing - * if the image is larger than main memory. - * - * If cropping or trimming is involved, the destination arrays may be smaller - * than the source arrays. Note it is not possible to do horizontal flip - * in-place when a nonzero Y crop offset is specified, since we'd have to move - * data from one block row to another but the virtual array manager doesn't - * guarantee we can touch more than one row at a time. So in that case, - * we have to use a separate destination array. - * - * Some notes about the operating environment of the individual transform - * routines: - * 1. Both the source and destination virtual arrays are allocated from the - * source JPEG object, and therefore should be manipulated by calling the - * source's memory manager. - * 2. The destination's component count should be used. It may be smaller - * than the source's when forcing to grayscale. - * 3. Likewise the destination's sampling factors should be used. When - * forcing to grayscale the destination's sampling factors will be all 1, - * and we may as well take that as the effective iMCU size. - * 4. When "trim" is in effect, the destination's dimensions will be the - * trimmed values but the source's will be untrimmed. - * 5. When "crop" is in effect, the destination's dimensions will be the - * cropped values but the source's will be uncropped. Each transform - * routine is responsible for picking up source data starting at the - * correct X and Y offset for the crop region. (The X and Y offsets - * passed to the transform routines are measured in iMCU blocks of the - * destination.) - * 6. All the routines assume that the source and destination buffers are - * padded out to a full iMCU boundary. This is true, although for the - * source buffer it is an undocumented property of jdcoefct.c. - */ - - -LOCAL(void) -do_crop (j_decompress_ptr srcinfo, j_compress_ptr dstinfo, - JDIMENSION x_crop_offset, JDIMENSION y_crop_offset, - jvirt_barray_ptr *src_coef_arrays, - jvirt_barray_ptr *dst_coef_arrays) -/* Crop. This is only used when no rotate/flip is requested with the crop. */ -{ - JDIMENSION dst_blk_y, x_crop_blocks, y_crop_blocks; - int ci, offset_y; - JBLOCKARRAY src_buffer, dst_buffer; - jpeg_component_info *compptr; - - /* We simply have to copy the right amount of data (the destination's - * image size) starting at the given X and Y offsets in the source. - */ - for (ci = 0; ci < dstinfo->num_components; ci++) { - compptr = dstinfo->comp_info + ci; - x_crop_blocks = x_crop_offset * compptr->h_samp_factor; - y_crop_blocks = y_crop_offset * compptr->v_samp_factor; - for (dst_blk_y = 0; dst_blk_y < compptr->height_in_blocks; - dst_blk_y += compptr->v_samp_factor) { - dst_buffer = (*srcinfo->mem->access_virt_barray) - ((j_common_ptr) srcinfo, dst_coef_arrays[ci], dst_blk_y, - (JDIMENSION) compptr->v_samp_factor, TRUE); - src_buffer = (*srcinfo->mem->access_virt_barray) - ((j_common_ptr) srcinfo, src_coef_arrays[ci], - dst_blk_y + y_crop_blocks, - (JDIMENSION) compptr->v_samp_factor, FALSE); - for (offset_y = 0; offset_y < compptr->v_samp_factor; offset_y++) { - jcopy_block_row(src_buffer[offset_y] + x_crop_blocks, - dst_buffer[offset_y], - compptr->width_in_blocks); - } - } - } -} - - -LOCAL(void) -do_flip_h_no_crop (j_decompress_ptr srcinfo, j_compress_ptr dstinfo, - JDIMENSION x_crop_offset, - jvirt_barray_ptr *src_coef_arrays) -/* Horizontal flip; done in-place, so no separate dest array is required. - * NB: this only works when y_crop_offset is zero. - */ -{ - JDIMENSION MCU_cols, comp_width, blk_x, blk_y, x_crop_blocks; - int ci, k, offset_y; - JBLOCKARRAY buffer; - JCOEFPTR ptr1, ptr2; - JCOEF temp1, temp2; - jpeg_component_info *compptr; - - /* Horizontal mirroring of DCT blocks is accomplished by swapping - * pairs of blocks in-place. Within a DCT block, we perform horizontal - * mirroring by changing the signs of odd-numbered columns. - * Partial iMCUs at the right edge are left untouched. - */ - MCU_cols = srcinfo->output_width / - (dstinfo->max_h_samp_factor * dstinfo->min_DCT_h_scaled_size); - - for (ci = 0; ci < dstinfo->num_components; ci++) { - compptr = dstinfo->comp_info + ci; - comp_width = MCU_cols * compptr->h_samp_factor; - x_crop_blocks = x_crop_offset * compptr->h_samp_factor; - for (blk_y = 0; blk_y < compptr->height_in_blocks; - blk_y += compptr->v_samp_factor) { - buffer = (*srcinfo->mem->access_virt_barray) - ((j_common_ptr) srcinfo, src_coef_arrays[ci], blk_y, - (JDIMENSION) compptr->v_samp_factor, TRUE); - for (offset_y = 0; offset_y < compptr->v_samp_factor; offset_y++) { - /* Do the mirroring */ - for (blk_x = 0; blk_x * 2 < comp_width; blk_x++) { - ptr1 = buffer[offset_y][blk_x]; - ptr2 = buffer[offset_y][comp_width - blk_x - 1]; - /* this unrolled loop doesn't need to know which row it's on... */ - for (k = 0; k < DCTSIZE2; k += 2) { - temp1 = *ptr1; /* swap even column */ - temp2 = *ptr2; - *ptr1++ = temp2; - *ptr2++ = temp1; - temp1 = *ptr1; /* swap odd column with sign change */ - temp2 = *ptr2; - *ptr1++ = -temp2; - *ptr2++ = -temp1; - } - } - if (x_crop_blocks > 0) { - /* Now left-justify the portion of the data to be kept. - * We can't use a single jcopy_block_row() call because that routine - * depends on memcpy(), whose behavior is unspecified for overlapping - * source and destination areas. Sigh. - */ - for (blk_x = 0; blk_x < compptr->width_in_blocks; blk_x++) { - jcopy_block_row(buffer[offset_y] + blk_x + x_crop_blocks, - buffer[offset_y] + blk_x, - (JDIMENSION) 1); - } - } - } - } - } -} - - -LOCAL(void) -do_flip_h (j_decompress_ptr srcinfo, j_compress_ptr dstinfo, - JDIMENSION x_crop_offset, JDIMENSION y_crop_offset, - jvirt_barray_ptr *src_coef_arrays, - jvirt_barray_ptr *dst_coef_arrays) -/* Horizontal flip in general cropping case */ -{ - JDIMENSION MCU_cols, comp_width, dst_blk_x, dst_blk_y; - JDIMENSION x_crop_blocks, y_crop_blocks; - int ci, k, offset_y; - JBLOCKARRAY src_buffer, dst_buffer; - JBLOCKROW src_row_ptr, dst_row_ptr; - JCOEFPTR src_ptr, dst_ptr; - jpeg_component_info *compptr; - - /* Here we must output into a separate array because we can't touch - * different rows of a single virtual array simultaneously. Otherwise, - * this is essentially the same as the routine above. - */ - MCU_cols = srcinfo->output_width / - (dstinfo->max_h_samp_factor * dstinfo->min_DCT_h_scaled_size); - - for (ci = 0; ci < dstinfo->num_components; ci++) { - compptr = dstinfo->comp_info + ci; - comp_width = MCU_cols * compptr->h_samp_factor; - x_crop_blocks = x_crop_offset * compptr->h_samp_factor; - y_crop_blocks = y_crop_offset * compptr->v_samp_factor; - for (dst_blk_y = 0; dst_blk_y < compptr->height_in_blocks; - dst_blk_y += compptr->v_samp_factor) { - dst_buffer = (*srcinfo->mem->access_virt_barray) - ((j_common_ptr) srcinfo, dst_coef_arrays[ci], dst_blk_y, - (JDIMENSION) compptr->v_samp_factor, TRUE); - src_buffer = (*srcinfo->mem->access_virt_barray) - ((j_common_ptr) srcinfo, src_coef_arrays[ci], - dst_blk_y + y_crop_blocks, - (JDIMENSION) compptr->v_samp_factor, FALSE); - for (offset_y = 0; offset_y < compptr->v_samp_factor; offset_y++) { - dst_row_ptr = dst_buffer[offset_y]; - src_row_ptr = src_buffer[offset_y]; - for (dst_blk_x = 0; dst_blk_x < compptr->width_in_blocks; dst_blk_x++) { - if (x_crop_blocks + dst_blk_x < comp_width) { - /* Do the mirrorable blocks */ - dst_ptr = dst_row_ptr[dst_blk_x]; - src_ptr = src_row_ptr[comp_width - x_crop_blocks - dst_blk_x - 1]; - /* this unrolled loop doesn't need to know which row it's on... */ - for (k = 0; k < DCTSIZE2; k += 2) { - *dst_ptr++ = *src_ptr++; /* copy even column */ - *dst_ptr++ = - *src_ptr++; /* copy odd column with sign change */ - } - } else { - /* Copy last partial block(s) verbatim */ - jcopy_block_row(src_row_ptr + dst_blk_x + x_crop_blocks, - dst_row_ptr + dst_blk_x, - (JDIMENSION) 1); - } - } - } - } - } -} - - -LOCAL(void) -do_flip_v (j_decompress_ptr srcinfo, j_compress_ptr dstinfo, - JDIMENSION x_crop_offset, JDIMENSION y_crop_offset, - jvirt_barray_ptr *src_coef_arrays, - jvirt_barray_ptr *dst_coef_arrays) -/* Vertical flip */ -{ - JDIMENSION MCU_rows, comp_height, dst_blk_x, dst_blk_y; - JDIMENSION x_crop_blocks, y_crop_blocks; - int ci, i, j, offset_y; - JBLOCKARRAY src_buffer, dst_buffer; - JBLOCKROW src_row_ptr, dst_row_ptr; - JCOEFPTR src_ptr, dst_ptr; - jpeg_component_info *compptr; - - /* We output into a separate array because we can't touch different - * rows of the source virtual array simultaneously. Otherwise, this - * is a pretty straightforward analog of horizontal flip. - * Within a DCT block, vertical mirroring is done by changing the signs - * of odd-numbered rows. - * Partial iMCUs at the bottom edge are copied verbatim. - */ - MCU_rows = srcinfo->output_height / - (dstinfo->max_v_samp_factor * dstinfo->min_DCT_v_scaled_size); - - for (ci = 0; ci < dstinfo->num_components; ci++) { - compptr = dstinfo->comp_info + ci; - comp_height = MCU_rows * compptr->v_samp_factor; - x_crop_blocks = x_crop_offset * compptr->h_samp_factor; - y_crop_blocks = y_crop_offset * compptr->v_samp_factor; - for (dst_blk_y = 0; dst_blk_y < compptr->height_in_blocks; - dst_blk_y += compptr->v_samp_factor) { - dst_buffer = (*srcinfo->mem->access_virt_barray) - ((j_common_ptr) srcinfo, dst_coef_arrays[ci], dst_blk_y, - (JDIMENSION) compptr->v_samp_factor, TRUE); - if (y_crop_blocks + dst_blk_y < comp_height) { - /* Row is within the mirrorable area. */ - src_buffer = (*srcinfo->mem->access_virt_barray) - ((j_common_ptr) srcinfo, src_coef_arrays[ci], - comp_height - y_crop_blocks - dst_blk_y - - (JDIMENSION) compptr->v_samp_factor, - (JDIMENSION) compptr->v_samp_factor, FALSE); - } else { - /* Bottom-edge blocks will be copied verbatim. */ - src_buffer = (*srcinfo->mem->access_virt_barray) - ((j_common_ptr) srcinfo, src_coef_arrays[ci], - dst_blk_y + y_crop_blocks, - (JDIMENSION) compptr->v_samp_factor, FALSE); - } - for (offset_y = 0; offset_y < compptr->v_samp_factor; offset_y++) { - if (y_crop_blocks + dst_blk_y < comp_height) { - /* Row is within the mirrorable area. */ - dst_row_ptr = dst_buffer[offset_y]; - src_row_ptr = src_buffer[compptr->v_samp_factor - offset_y - 1]; - src_row_ptr += x_crop_blocks; - for (dst_blk_x = 0; dst_blk_x < compptr->width_in_blocks; - dst_blk_x++) { - dst_ptr = dst_row_ptr[dst_blk_x]; - src_ptr = src_row_ptr[dst_blk_x]; - for (i = 0; i < DCTSIZE; i += 2) { - /* copy even row */ - for (j = 0; j < DCTSIZE; j++) - *dst_ptr++ = *src_ptr++; - /* copy odd row with sign change */ - for (j = 0; j < DCTSIZE; j++) - *dst_ptr++ = - *src_ptr++; - } - } - } else { - /* Just copy row verbatim. */ - jcopy_block_row(src_buffer[offset_y] + x_crop_blocks, - dst_buffer[offset_y], - compptr->width_in_blocks); - } - } - } - } -} - - -LOCAL(void) -do_transpose (j_decompress_ptr srcinfo, j_compress_ptr dstinfo, - JDIMENSION x_crop_offset, JDIMENSION y_crop_offset, - jvirt_barray_ptr *src_coef_arrays, - jvirt_barray_ptr *dst_coef_arrays) -/* Transpose source into destination */ -{ - JDIMENSION dst_blk_x, dst_blk_y, x_crop_blocks, y_crop_blocks; - int ci, i, j, offset_x, offset_y; - JBLOCKARRAY src_buffer, dst_buffer; - JCOEFPTR src_ptr, dst_ptr; - jpeg_component_info *compptr; - - /* Transposing pixels within a block just requires transposing the - * DCT coefficients. - * Partial iMCUs at the edges require no special treatment; we simply - * process all the available DCT blocks for every component. - */ - for (ci = 0; ci < dstinfo->num_components; ci++) { - compptr = dstinfo->comp_info + ci; - x_crop_blocks = x_crop_offset * compptr->h_samp_factor; - y_crop_blocks = y_crop_offset * compptr->v_samp_factor; - for (dst_blk_y = 0; dst_blk_y < compptr->height_in_blocks; - dst_blk_y += compptr->v_samp_factor) { - dst_buffer = (*srcinfo->mem->access_virt_barray) - ((j_common_ptr) srcinfo, dst_coef_arrays[ci], dst_blk_y, - (JDIMENSION) compptr->v_samp_factor, TRUE); - for (offset_y = 0; offset_y < compptr->v_samp_factor; offset_y++) { - for (dst_blk_x = 0; dst_blk_x < compptr->width_in_blocks; - dst_blk_x += compptr->h_samp_factor) { - src_buffer = (*srcinfo->mem->access_virt_barray) - ((j_common_ptr) srcinfo, src_coef_arrays[ci], - dst_blk_x + x_crop_blocks, - (JDIMENSION) compptr->h_samp_factor, FALSE); - for (offset_x = 0; offset_x < compptr->h_samp_factor; offset_x++) { - dst_ptr = dst_buffer[offset_y][dst_blk_x + offset_x]; - src_ptr = src_buffer[offset_x][dst_blk_y + offset_y + y_crop_blocks]; - for (i = 0; i < DCTSIZE; i++) - for (j = 0; j < DCTSIZE; j++) - dst_ptr[j*DCTSIZE+i] = src_ptr[i*DCTSIZE+j]; - } - } - } - } - } -} - - -LOCAL(void) -do_rot_90 (j_decompress_ptr srcinfo, j_compress_ptr dstinfo, - JDIMENSION x_crop_offset, JDIMENSION y_crop_offset, - jvirt_barray_ptr *src_coef_arrays, - jvirt_barray_ptr *dst_coef_arrays) -/* 90 degree rotation is equivalent to - * 1. Transposing the image; - * 2. Horizontal mirroring. - * These two steps are merged into a single processing routine. - */ -{ - JDIMENSION MCU_cols, comp_width, dst_blk_x, dst_blk_y; - JDIMENSION x_crop_blocks, y_crop_blocks; - int ci, i, j, offset_x, offset_y; - JBLOCKARRAY src_buffer, dst_buffer; - JCOEFPTR src_ptr, dst_ptr; - jpeg_component_info *compptr; - - /* Because of the horizontal mirror step, we can't process partial iMCUs - * at the (output) right edge properly. They just get transposed and - * not mirrored. - */ - MCU_cols = srcinfo->output_height / - (dstinfo->max_h_samp_factor * dstinfo->min_DCT_h_scaled_size); - - for (ci = 0; ci < dstinfo->num_components; ci++) { - compptr = dstinfo->comp_info + ci; - comp_width = MCU_cols * compptr->h_samp_factor; - x_crop_blocks = x_crop_offset * compptr->h_samp_factor; - y_crop_blocks = y_crop_offset * compptr->v_samp_factor; - for (dst_blk_y = 0; dst_blk_y < compptr->height_in_blocks; - dst_blk_y += compptr->v_samp_factor) { - dst_buffer = (*srcinfo->mem->access_virt_barray) - ((j_common_ptr) srcinfo, dst_coef_arrays[ci], dst_blk_y, - (JDIMENSION) compptr->v_samp_factor, TRUE); - for (offset_y = 0; offset_y < compptr->v_samp_factor; offset_y++) { - for (dst_blk_x = 0; dst_blk_x < compptr->width_in_blocks; - dst_blk_x += compptr->h_samp_factor) { - if (x_crop_blocks + dst_blk_x < comp_width) { - /* Block is within the mirrorable area. */ - src_buffer = (*srcinfo->mem->access_virt_barray) - ((j_common_ptr) srcinfo, src_coef_arrays[ci], - comp_width - x_crop_blocks - dst_blk_x - - (JDIMENSION) compptr->h_samp_factor, - (JDIMENSION) compptr->h_samp_factor, FALSE); - } else { - /* Edge blocks are transposed but not mirrored. */ - src_buffer = (*srcinfo->mem->access_virt_barray) - ((j_common_ptr) srcinfo, src_coef_arrays[ci], - dst_blk_x + x_crop_blocks, - (JDIMENSION) compptr->h_samp_factor, FALSE); - } - for (offset_x = 0; offset_x < compptr->h_samp_factor; offset_x++) { - dst_ptr = dst_buffer[offset_y][dst_blk_x + offset_x]; - if (x_crop_blocks + dst_blk_x < comp_width) { - /* Block is within the mirrorable area. */ - src_ptr = src_buffer[compptr->h_samp_factor - offset_x - 1] - [dst_blk_y + offset_y + y_crop_blocks]; - for (i = 0; i < DCTSIZE; i++) { - for (j = 0; j < DCTSIZE; j++) - dst_ptr[j*DCTSIZE+i] = src_ptr[i*DCTSIZE+j]; - i++; - for (j = 0; j < DCTSIZE; j++) - dst_ptr[j*DCTSIZE+i] = -src_ptr[i*DCTSIZE+j]; - } - } else { - /* Edge blocks are transposed but not mirrored. */ - src_ptr = src_buffer[offset_x] - [dst_blk_y + offset_y + y_crop_blocks]; - for (i = 0; i < DCTSIZE; i++) - for (j = 0; j < DCTSIZE; j++) - dst_ptr[j*DCTSIZE+i] = src_ptr[i*DCTSIZE+j]; - } - } - } - } - } - } -} - - -LOCAL(void) -do_rot_270 (j_decompress_ptr srcinfo, j_compress_ptr dstinfo, - JDIMENSION x_crop_offset, JDIMENSION y_crop_offset, - jvirt_barray_ptr *src_coef_arrays, - jvirt_barray_ptr *dst_coef_arrays) -/* 270 degree rotation is equivalent to - * 1. Horizontal mirroring; - * 2. Transposing the image. - * These two steps are merged into a single processing routine. - */ -{ - JDIMENSION MCU_rows, comp_height, dst_blk_x, dst_blk_y; - JDIMENSION x_crop_blocks, y_crop_blocks; - int ci, i, j, offset_x, offset_y; - JBLOCKARRAY src_buffer, dst_buffer; - JCOEFPTR src_ptr, dst_ptr; - jpeg_component_info *compptr; - - /* Because of the horizontal mirror step, we can't process partial iMCUs - * at the (output) bottom edge properly. They just get transposed and - * not mirrored. - */ - MCU_rows = srcinfo->output_width / - (dstinfo->max_v_samp_factor * dstinfo->min_DCT_v_scaled_size); - - for (ci = 0; ci < dstinfo->num_components; ci++) { - compptr = dstinfo->comp_info + ci; - comp_height = MCU_rows * compptr->v_samp_factor; - x_crop_blocks = x_crop_offset * compptr->h_samp_factor; - y_crop_blocks = y_crop_offset * compptr->v_samp_factor; - for (dst_blk_y = 0; dst_blk_y < compptr->height_in_blocks; - dst_blk_y += compptr->v_samp_factor) { - dst_buffer = (*srcinfo->mem->access_virt_barray) - ((j_common_ptr) srcinfo, dst_coef_arrays[ci], dst_blk_y, - (JDIMENSION) compptr->v_samp_factor, TRUE); - for (offset_y = 0; offset_y < compptr->v_samp_factor; offset_y++) { - for (dst_blk_x = 0; dst_blk_x < compptr->width_in_blocks; - dst_blk_x += compptr->h_samp_factor) { - src_buffer = (*srcinfo->mem->access_virt_barray) - ((j_common_ptr) srcinfo, src_coef_arrays[ci], - dst_blk_x + x_crop_blocks, - (JDIMENSION) compptr->h_samp_factor, FALSE); - for (offset_x = 0; offset_x < compptr->h_samp_factor; offset_x++) { - dst_ptr = dst_buffer[offset_y][dst_blk_x + offset_x]; - if (y_crop_blocks + dst_blk_y < comp_height) { - /* Block is within the mirrorable area. */ - src_ptr = src_buffer[offset_x] - [comp_height - y_crop_blocks - dst_blk_y - offset_y - 1]; - for (i = 0; i < DCTSIZE; i++) { - for (j = 0; j < DCTSIZE; j++) { - dst_ptr[j*DCTSIZE+i] = src_ptr[i*DCTSIZE+j]; - j++; - dst_ptr[j*DCTSIZE+i] = -src_ptr[i*DCTSIZE+j]; - } - } - } else { - /* Edge blocks are transposed but not mirrored. */ - src_ptr = src_buffer[offset_x] - [dst_blk_y + offset_y + y_crop_blocks]; - for (i = 0; i < DCTSIZE; i++) - for (j = 0; j < DCTSIZE; j++) - dst_ptr[j*DCTSIZE+i] = src_ptr[i*DCTSIZE+j]; - } - } - } - } - } - } -} - - -LOCAL(void) -do_rot_180 (j_decompress_ptr srcinfo, j_compress_ptr dstinfo, - JDIMENSION x_crop_offset, JDIMENSION y_crop_offset, - jvirt_barray_ptr *src_coef_arrays, - jvirt_barray_ptr *dst_coef_arrays) -/* 180 degree rotation is equivalent to - * 1. Vertical mirroring; - * 2. Horizontal mirroring. - * These two steps are merged into a single processing routine. - */ -{ - JDIMENSION MCU_cols, MCU_rows, comp_width, comp_height, dst_blk_x, dst_blk_y; - JDIMENSION x_crop_blocks, y_crop_blocks; - int ci, i, j, offset_y; - JBLOCKARRAY src_buffer, dst_buffer; - JBLOCKROW src_row_ptr, dst_row_ptr; - JCOEFPTR src_ptr, dst_ptr; - jpeg_component_info *compptr; - - MCU_cols = srcinfo->output_width / - (dstinfo->max_h_samp_factor * dstinfo->min_DCT_h_scaled_size); - MCU_rows = srcinfo->output_height / - (dstinfo->max_v_samp_factor * dstinfo->min_DCT_v_scaled_size); - - for (ci = 0; ci < dstinfo->num_components; ci++) { - compptr = dstinfo->comp_info + ci; - comp_width = MCU_cols * compptr->h_samp_factor; - comp_height = MCU_rows * compptr->v_samp_factor; - x_crop_blocks = x_crop_offset * compptr->h_samp_factor; - y_crop_blocks = y_crop_offset * compptr->v_samp_factor; - for (dst_blk_y = 0; dst_blk_y < compptr->height_in_blocks; - dst_blk_y += compptr->v_samp_factor) { - dst_buffer = (*srcinfo->mem->access_virt_barray) - ((j_common_ptr) srcinfo, dst_coef_arrays[ci], dst_blk_y, - (JDIMENSION) compptr->v_samp_factor, TRUE); - if (y_crop_blocks + dst_blk_y < comp_height) { - /* Row is within the vertically mirrorable area. */ - src_buffer = (*srcinfo->mem->access_virt_barray) - ((j_common_ptr) srcinfo, src_coef_arrays[ci], - comp_height - y_crop_blocks - dst_blk_y - - (JDIMENSION) compptr->v_samp_factor, - (JDIMENSION) compptr->v_samp_factor, FALSE); - } else { - /* Bottom-edge rows are only mirrored horizontally. */ - src_buffer = (*srcinfo->mem->access_virt_barray) - ((j_common_ptr) srcinfo, src_coef_arrays[ci], - dst_blk_y + y_crop_blocks, - (JDIMENSION) compptr->v_samp_factor, FALSE); - } - for (offset_y = 0; offset_y < compptr->v_samp_factor; offset_y++) { - dst_row_ptr = dst_buffer[offset_y]; - if (y_crop_blocks + dst_blk_y < comp_height) { - /* Row is within the mirrorable area. */ - src_row_ptr = src_buffer[compptr->v_samp_factor - offset_y - 1]; - for (dst_blk_x = 0; dst_blk_x < compptr->width_in_blocks; dst_blk_x++) { - dst_ptr = dst_row_ptr[dst_blk_x]; - if (x_crop_blocks + dst_blk_x < comp_width) { - /* Process the blocks that can be mirrored both ways. */ - src_ptr = src_row_ptr[comp_width - x_crop_blocks - dst_blk_x - 1]; - for (i = 0; i < DCTSIZE; i += 2) { - /* For even row, negate every odd column. */ - for (j = 0; j < DCTSIZE; j += 2) { - *dst_ptr++ = *src_ptr++; - *dst_ptr++ = - *src_ptr++; - } - /* For odd row, negate every even column. */ - for (j = 0; j < DCTSIZE; j += 2) { - *dst_ptr++ = - *src_ptr++; - *dst_ptr++ = *src_ptr++; - } - } - } else { - /* Any remaining right-edge blocks are only mirrored vertically. */ - src_ptr = src_row_ptr[x_crop_blocks + dst_blk_x]; - for (i = 0; i < DCTSIZE; i += 2) { - for (j = 0; j < DCTSIZE; j++) - *dst_ptr++ = *src_ptr++; - for (j = 0; j < DCTSIZE; j++) - *dst_ptr++ = - *src_ptr++; - } - } - } - } else { - /* Remaining rows are just mirrored horizontally. */ - src_row_ptr = src_buffer[offset_y]; - for (dst_blk_x = 0; dst_blk_x < compptr->width_in_blocks; dst_blk_x++) { - if (x_crop_blocks + dst_blk_x < comp_width) { - /* Process the blocks that can be mirrored. */ - dst_ptr = dst_row_ptr[dst_blk_x]; - src_ptr = src_row_ptr[comp_width - x_crop_blocks - dst_blk_x - 1]; - for (i = 0; i < DCTSIZE2; i += 2) { - *dst_ptr++ = *src_ptr++; - *dst_ptr++ = - *src_ptr++; - } - } else { - /* Any remaining right-edge blocks are only copied. */ - jcopy_block_row(src_row_ptr + dst_blk_x + x_crop_blocks, - dst_row_ptr + dst_blk_x, - (JDIMENSION) 1); - } - } - } - } - } - } -} - - -LOCAL(void) -do_transverse (j_decompress_ptr srcinfo, j_compress_ptr dstinfo, - JDIMENSION x_crop_offset, JDIMENSION y_crop_offset, - jvirt_barray_ptr *src_coef_arrays, - jvirt_barray_ptr *dst_coef_arrays) -/* Transverse transpose is equivalent to - * 1. 180 degree rotation; - * 2. Transposition; - * or - * 1. Horizontal mirroring; - * 2. Transposition; - * 3. Horizontal mirroring. - * These steps are merged into a single processing routine. - */ -{ - JDIMENSION MCU_cols, MCU_rows, comp_width, comp_height, dst_blk_x, dst_blk_y; - JDIMENSION x_crop_blocks, y_crop_blocks; - int ci, i, j, offset_x, offset_y; - JBLOCKARRAY src_buffer, dst_buffer; - JCOEFPTR src_ptr, dst_ptr; - jpeg_component_info *compptr; - - MCU_cols = srcinfo->output_height / - (dstinfo->max_h_samp_factor * dstinfo->min_DCT_h_scaled_size); - MCU_rows = srcinfo->output_width / - (dstinfo->max_v_samp_factor * dstinfo->min_DCT_v_scaled_size); - - for (ci = 0; ci < dstinfo->num_components; ci++) { - compptr = dstinfo->comp_info + ci; - comp_width = MCU_cols * compptr->h_samp_factor; - comp_height = MCU_rows * compptr->v_samp_factor; - x_crop_blocks = x_crop_offset * compptr->h_samp_factor; - y_crop_blocks = y_crop_offset * compptr->v_samp_factor; - for (dst_blk_y = 0; dst_blk_y < compptr->height_in_blocks; - dst_blk_y += compptr->v_samp_factor) { - dst_buffer = (*srcinfo->mem->access_virt_barray) - ((j_common_ptr) srcinfo, dst_coef_arrays[ci], dst_blk_y, - (JDIMENSION) compptr->v_samp_factor, TRUE); - for (offset_y = 0; offset_y < compptr->v_samp_factor; offset_y++) { - for (dst_blk_x = 0; dst_blk_x < compptr->width_in_blocks; - dst_blk_x += compptr->h_samp_factor) { - if (x_crop_blocks + dst_blk_x < comp_width) { - /* Block is within the mirrorable area. */ - src_buffer = (*srcinfo->mem->access_virt_barray) - ((j_common_ptr) srcinfo, src_coef_arrays[ci], - comp_width - x_crop_blocks - dst_blk_x - - (JDIMENSION) compptr->h_samp_factor, - (JDIMENSION) compptr->h_samp_factor, FALSE); - } else { - src_buffer = (*srcinfo->mem->access_virt_barray) - ((j_common_ptr) srcinfo, src_coef_arrays[ci], - dst_blk_x + x_crop_blocks, - (JDIMENSION) compptr->h_samp_factor, FALSE); - } - for (offset_x = 0; offset_x < compptr->h_samp_factor; offset_x++) { - dst_ptr = dst_buffer[offset_y][dst_blk_x + offset_x]; - if (y_crop_blocks + dst_blk_y < comp_height) { - if (x_crop_blocks + dst_blk_x < comp_width) { - /* Block is within the mirrorable area. */ - src_ptr = src_buffer[compptr->h_samp_factor - offset_x - 1] - [comp_height - y_crop_blocks - dst_blk_y - offset_y - 1]; - for (i = 0; i < DCTSIZE; i++) { - for (j = 0; j < DCTSIZE; j++) { - dst_ptr[j*DCTSIZE+i] = src_ptr[i*DCTSIZE+j]; - j++; - dst_ptr[j*DCTSIZE+i] = -src_ptr[i*DCTSIZE+j]; - } - i++; - for (j = 0; j < DCTSIZE; j++) { - dst_ptr[j*DCTSIZE+i] = -src_ptr[i*DCTSIZE+j]; - j++; - dst_ptr[j*DCTSIZE+i] = src_ptr[i*DCTSIZE+j]; - } - } - } else { - /* Right-edge blocks are mirrored in y only */ - src_ptr = src_buffer[offset_x] - [comp_height - y_crop_blocks - dst_blk_y - offset_y - 1]; - for (i = 0; i < DCTSIZE; i++) { - for (j = 0; j < DCTSIZE; j++) { - dst_ptr[j*DCTSIZE+i] = src_ptr[i*DCTSIZE+j]; - j++; - dst_ptr[j*DCTSIZE+i] = -src_ptr[i*DCTSIZE+j]; - } - } - } - } else { - if (x_crop_blocks + dst_blk_x < comp_width) { - /* Bottom-edge blocks are mirrored in x only */ - src_ptr = src_buffer[compptr->h_samp_factor - offset_x - 1] - [dst_blk_y + offset_y + y_crop_blocks]; - for (i = 0; i < DCTSIZE; i++) { - for (j = 0; j < DCTSIZE; j++) - dst_ptr[j*DCTSIZE+i] = src_ptr[i*DCTSIZE+j]; - i++; - for (j = 0; j < DCTSIZE; j++) - dst_ptr[j*DCTSIZE+i] = -src_ptr[i*DCTSIZE+j]; - } - } else { - /* At lower right corner, just transpose, no mirroring */ - src_ptr = src_buffer[offset_x] - [dst_blk_y + offset_y + y_crop_blocks]; - for (i = 0; i < DCTSIZE; i++) - for (j = 0; j < DCTSIZE; j++) - dst_ptr[j*DCTSIZE+i] = src_ptr[i*DCTSIZE+j]; - } - } - } - } - } - } - } -} - - -/* Parse an unsigned integer: subroutine for jtransform_parse_crop_spec. - * Returns TRUE if valid integer found, FALSE if not. - * *strptr is advanced over the digit string, and *result is set to its value. - */ - -LOCAL(boolean) -jt_read_integer (const char ** strptr, JDIMENSION * result) -{ - const char * ptr = *strptr; - JDIMENSION val = 0; - - for (; isdigit(*ptr); ptr++) { - val = val * 10 + (JDIMENSION) (*ptr - '0'); - } - *result = val; - if (ptr == *strptr) - return FALSE; /* oops, no digits */ - *strptr = ptr; - return TRUE; -} - - -/* Parse a crop specification (written in X11 geometry style). - * The routine returns TRUE if the spec string is valid, FALSE if not. - * - * The crop spec string should have the format - * [f]x[f]{+-}{+-} - * where width, height, xoffset, and yoffset are unsigned integers. - * Each of the elements can be omitted to indicate a default value. - * (A weakness of this style is that it is not possible to omit xoffset - * while specifying yoffset, since they look alike.) - * - * This code is loosely based on XParseGeometry from the X11 distribution. - */ - -GLOBAL(boolean) -jtransform_parse_crop_spec (jpeg_transform_info *info, const char *spec) -{ - info->crop = FALSE; - info->crop_width_set = JCROP_UNSET; - info->crop_height_set = JCROP_UNSET; - info->crop_xoffset_set = JCROP_UNSET; - info->crop_yoffset_set = JCROP_UNSET; - - if (isdigit(*spec)) { - /* fetch width */ - if (! jt_read_integer(&spec, &info->crop_width)) - return FALSE; - if (*spec == 'f' || *spec == 'F') { - spec++; - info->crop_width_set = JCROP_FORCE; - } else - info->crop_width_set = JCROP_POS; - } - if (*spec == 'x' || *spec == 'X') { - /* fetch height */ - spec++; - if (! jt_read_integer(&spec, &info->crop_height)) - return FALSE; - if (*spec == 'f' || *spec == 'F') { - spec++; - info->crop_height_set = JCROP_FORCE; - } else - info->crop_height_set = JCROP_POS; - } - if (*spec == '+' || *spec == '-') { - /* fetch xoffset */ - info->crop_xoffset_set = (*spec == '-') ? JCROP_NEG : JCROP_POS; - spec++; - if (! jt_read_integer(&spec, &info->crop_xoffset)) - return FALSE; - } - if (*spec == '+' || *spec == '-') { - /* fetch yoffset */ - info->crop_yoffset_set = (*spec == '-') ? JCROP_NEG : JCROP_POS; - spec++; - if (! jt_read_integer(&spec, &info->crop_yoffset)) - return FALSE; - } - /* We had better have gotten to the end of the string. */ - if (*spec != '\0') - return FALSE; - info->crop = TRUE; - return TRUE; -} - - -/* Trim off any partial iMCUs on the indicated destination edge */ - -LOCAL(void) -trim_right_edge (jpeg_transform_info *info, JDIMENSION full_width) -{ - JDIMENSION MCU_cols; - - MCU_cols = info->output_width / info->iMCU_sample_width; - if (MCU_cols > 0 && info->x_crop_offset + MCU_cols == - full_width / info->iMCU_sample_width) - info->output_width = MCU_cols * info->iMCU_sample_width; -} - -LOCAL(void) -trim_bottom_edge (jpeg_transform_info *info, JDIMENSION full_height) -{ - JDIMENSION MCU_rows; - - MCU_rows = info->output_height / info->iMCU_sample_height; - if (MCU_rows > 0 && info->y_crop_offset + MCU_rows == - full_height / info->iMCU_sample_height) - info->output_height = MCU_rows * info->iMCU_sample_height; -} - - -/* Request any required workspace. - * - * This routine figures out the size that the output image will be - * (which implies that all the transform parameters must be set before - * it is called). - * - * We allocate the workspace virtual arrays from the source decompression - * object, so that all the arrays (both the original data and the workspace) - * will be taken into account while making memory management decisions. - * Hence, this routine must be called after jpeg_read_header (which reads - * the image dimensions) and before jpeg_read_coefficients (which realizes - * the source's virtual arrays). - * - * This function returns FALSE right away if -perfect is given - * and transformation is not perfect. Otherwise returns TRUE. - */ - -GLOBAL(boolean) -jtransform_request_workspace (j_decompress_ptr srcinfo, - jpeg_transform_info *info) -{ - jvirt_barray_ptr *coef_arrays; - boolean need_workspace, transpose_it; - jpeg_component_info *compptr; - JDIMENSION xoffset, yoffset; - JDIMENSION width_in_iMCUs, height_in_iMCUs; - JDIMENSION width_in_blocks, height_in_blocks; - int ci, h_samp_factor, v_samp_factor; - - /* Determine number of components in output image */ - if (info->force_grayscale && - srcinfo->jpeg_color_space == JCS_YCbCr && - srcinfo->num_components == 3) - /* We'll only process the first component */ - info->num_components = 1; - else - /* Process all the components */ - info->num_components = srcinfo->num_components; - - /* Compute output image dimensions and related values. */ - jpeg_core_output_dimensions(srcinfo); - - /* Return right away if -perfect is given and transformation is not perfect. - */ - if (info->perfect) { - if (info->num_components == 1) { - if (!jtransform_perfect_transform(srcinfo->output_width, - srcinfo->output_height, - srcinfo->min_DCT_h_scaled_size, - srcinfo->min_DCT_v_scaled_size, - info->transform)) - return FALSE; - } else { - if (!jtransform_perfect_transform(srcinfo->output_width, - srcinfo->output_height, - srcinfo->max_h_samp_factor * srcinfo->min_DCT_h_scaled_size, - srcinfo->max_v_samp_factor * srcinfo->min_DCT_v_scaled_size, - info->transform)) - return FALSE; - } - } - - /* If there is only one output component, force the iMCU size to be 1; - * else use the source iMCU size. (This allows us to do the right thing - * when reducing color to grayscale, and also provides a handy way of - * cleaning up "funny" grayscale images whose sampling factors are not 1x1.) - */ - switch (info->transform) { - case JXFORM_TRANSPOSE: - case JXFORM_TRANSVERSE: - case JXFORM_ROT_90: - case JXFORM_ROT_270: - info->output_width = srcinfo->output_height; - info->output_height = srcinfo->output_width; - if (info->num_components == 1) { - info->iMCU_sample_width = srcinfo->min_DCT_v_scaled_size; - info->iMCU_sample_height = srcinfo->min_DCT_h_scaled_size; - } else { - info->iMCU_sample_width = - srcinfo->max_v_samp_factor * srcinfo->min_DCT_v_scaled_size; - info->iMCU_sample_height = - srcinfo->max_h_samp_factor * srcinfo->min_DCT_h_scaled_size; - } - break; - default: - info->output_width = srcinfo->output_width; - info->output_height = srcinfo->output_height; - if (info->num_components == 1) { - info->iMCU_sample_width = srcinfo->min_DCT_h_scaled_size; - info->iMCU_sample_height = srcinfo->min_DCT_v_scaled_size; - } else { - info->iMCU_sample_width = - srcinfo->max_h_samp_factor * srcinfo->min_DCT_h_scaled_size; - info->iMCU_sample_height = - srcinfo->max_v_samp_factor * srcinfo->min_DCT_v_scaled_size; - } - break; - } - - /* If cropping has been requested, compute the crop area's position and - * dimensions, ensuring that its upper left corner falls at an iMCU boundary. - */ - if (info->crop) { - /* Insert default values for unset crop parameters */ - if (info->crop_xoffset_set == JCROP_UNSET) - info->crop_xoffset = 0; /* default to +0 */ - if (info->crop_yoffset_set == JCROP_UNSET) - info->crop_yoffset = 0; /* default to +0 */ - if (info->crop_xoffset >= info->output_width || - info->crop_yoffset >= info->output_height) - ERREXIT(srcinfo, JERR_BAD_CROP_SPEC); - if (info->crop_width_set == JCROP_UNSET) - info->crop_width = info->output_width - info->crop_xoffset; - if (info->crop_height_set == JCROP_UNSET) - info->crop_height = info->output_height - info->crop_yoffset; - /* Ensure parameters are valid */ - if (info->crop_width <= 0 || info->crop_width > info->output_width || - info->crop_height <= 0 || info->crop_height > info->output_height || - info->crop_xoffset > info->output_width - info->crop_width || - info->crop_yoffset > info->output_height - info->crop_height) - ERREXIT(srcinfo, JERR_BAD_CROP_SPEC); - /* Convert negative crop offsets into regular offsets */ - if (info->crop_xoffset_set == JCROP_NEG) - xoffset = info->output_width - info->crop_width - info->crop_xoffset; - else - xoffset = info->crop_xoffset; - if (info->crop_yoffset_set == JCROP_NEG) - yoffset = info->output_height - info->crop_height - info->crop_yoffset; - else - yoffset = info->crop_yoffset; - /* Now adjust so that upper left corner falls at an iMCU boundary */ - if (info->crop_width_set == JCROP_FORCE) - info->output_width = info->crop_width; - else - info->output_width = - info->crop_width + (xoffset % info->iMCU_sample_width); - if (info->crop_height_set == JCROP_FORCE) - info->output_height = info->crop_height; - else - info->output_height = - info->crop_height + (yoffset % info->iMCU_sample_height); - /* Save x/y offsets measured in iMCUs */ - info->x_crop_offset = xoffset / info->iMCU_sample_width; - info->y_crop_offset = yoffset / info->iMCU_sample_height; - } else { - info->x_crop_offset = 0; - info->y_crop_offset = 0; - } - - /* Figure out whether we need workspace arrays, - * and if so whether they are transposed relative to the source. - */ - need_workspace = FALSE; - transpose_it = FALSE; - switch (info->transform) { - case JXFORM_NONE: - if (info->x_crop_offset != 0 || info->y_crop_offset != 0) - need_workspace = TRUE; - /* No workspace needed if neither cropping nor transforming */ - break; - case JXFORM_FLIP_H: - if (info->trim) - trim_right_edge(info, srcinfo->output_width); - if (info->y_crop_offset != 0) - need_workspace = TRUE; - /* do_flip_h_no_crop doesn't need a workspace array */ - break; - case JXFORM_FLIP_V: - if (info->trim) - trim_bottom_edge(info, srcinfo->output_height); - /* Need workspace arrays having same dimensions as source image. */ - need_workspace = TRUE; - break; - case JXFORM_TRANSPOSE: - /* transpose does NOT have to trim anything */ - /* Need workspace arrays having transposed dimensions. */ - need_workspace = TRUE; - transpose_it = TRUE; - break; - case JXFORM_TRANSVERSE: - if (info->trim) { - trim_right_edge(info, srcinfo->output_height); - trim_bottom_edge(info, srcinfo->output_width); - } - /* Need workspace arrays having transposed dimensions. */ - need_workspace = TRUE; - transpose_it = TRUE; - break; - case JXFORM_ROT_90: - if (info->trim) - trim_right_edge(info, srcinfo->output_height); - /* Need workspace arrays having transposed dimensions. */ - need_workspace = TRUE; - transpose_it = TRUE; - break; - case JXFORM_ROT_180: - if (info->trim) { - trim_right_edge(info, srcinfo->output_width); - trim_bottom_edge(info, srcinfo->output_height); - } - /* Need workspace arrays having same dimensions as source image. */ - need_workspace = TRUE; - break; - case JXFORM_ROT_270: - if (info->trim) - trim_bottom_edge(info, srcinfo->output_width); - /* Need workspace arrays having transposed dimensions. */ - need_workspace = TRUE; - transpose_it = TRUE; - break; - } - - /* Allocate workspace if needed. - * Note that we allocate arrays padded out to the next iMCU boundary, - * so that transform routines need not worry about missing edge blocks. - */ - if (need_workspace) { - coef_arrays = (jvirt_barray_ptr *) - (*srcinfo->mem->alloc_small) ((j_common_ptr) srcinfo, JPOOL_IMAGE, - SIZEOF(jvirt_barray_ptr) * info->num_components); - width_in_iMCUs = (JDIMENSION) - jdiv_round_up((long) info->output_width, - (long) info->iMCU_sample_width); - height_in_iMCUs = (JDIMENSION) - jdiv_round_up((long) info->output_height, - (long) info->iMCU_sample_height); - for (ci = 0; ci < info->num_components; ci++) { - compptr = srcinfo->comp_info + ci; - if (info->num_components == 1) { - /* we're going to force samp factors to 1x1 in this case */ - h_samp_factor = v_samp_factor = 1; - } else if (transpose_it) { - h_samp_factor = compptr->v_samp_factor; - v_samp_factor = compptr->h_samp_factor; - } else { - h_samp_factor = compptr->h_samp_factor; - v_samp_factor = compptr->v_samp_factor; - } - width_in_blocks = width_in_iMCUs * h_samp_factor; - height_in_blocks = height_in_iMCUs * v_samp_factor; - coef_arrays[ci] = (*srcinfo->mem->request_virt_barray) - ((j_common_ptr) srcinfo, JPOOL_IMAGE, FALSE, - width_in_blocks, height_in_blocks, (JDIMENSION) v_samp_factor); - } - info->workspace_coef_arrays = coef_arrays; - } else - info->workspace_coef_arrays = NULL; - - return TRUE; -} - - -/* Transpose destination image parameters */ - -LOCAL(void) -transpose_critical_parameters (j_compress_ptr dstinfo) -{ - int tblno, i, j, ci, itemp; - jpeg_component_info *compptr; - JQUANT_TBL *qtblptr; - JDIMENSION jtemp; - UINT16 qtemp; - - /* Transpose image dimensions */ - jtemp = dstinfo->image_width; - dstinfo->image_width = dstinfo->image_height; - dstinfo->image_height = jtemp; - itemp = dstinfo->min_DCT_h_scaled_size; - dstinfo->min_DCT_h_scaled_size = dstinfo->min_DCT_v_scaled_size; - dstinfo->min_DCT_v_scaled_size = itemp; - - /* Transpose sampling factors */ - for (ci = 0; ci < dstinfo->num_components; ci++) { - compptr = dstinfo->comp_info + ci; - itemp = compptr->h_samp_factor; - compptr->h_samp_factor = compptr->v_samp_factor; - compptr->v_samp_factor = itemp; - } - - /* Transpose quantization tables */ - for (tblno = 0; tblno < NUM_QUANT_TBLS; tblno++) { - qtblptr = dstinfo->quant_tbl_ptrs[tblno]; - if (qtblptr != NULL) { - for (i = 0; i < DCTSIZE; i++) { - for (j = 0; j < i; j++) { - qtemp = qtblptr->quantval[i*DCTSIZE+j]; - qtblptr->quantval[i*DCTSIZE+j] = qtblptr->quantval[j*DCTSIZE+i]; - qtblptr->quantval[j*DCTSIZE+i] = qtemp; - } - } - } - } -} - - -/* Adjust Exif image parameters. - * - * We try to adjust the Tags ExifImageWidth and ExifImageHeight if possible. - */ - -LOCAL(void) -adjust_exif_parameters (JOCTET FAR * data, unsigned int length, - JDIMENSION new_width, JDIMENSION new_height) -{ - boolean is_motorola; /* Flag for byte order */ - unsigned int number_of_tags, tagnum; - unsigned int firstoffset, offset; - JDIMENSION new_value; - - if (length < 12) return; /* Length of an IFD entry */ - - /* Discover byte order */ - if (GETJOCTET(data[0]) == 0x49 && GETJOCTET(data[1]) == 0x49) - is_motorola = FALSE; - else if (GETJOCTET(data[0]) == 0x4D && GETJOCTET(data[1]) == 0x4D) - is_motorola = TRUE; - else - return; - - /* Check Tag Mark */ - if (is_motorola) { - if (GETJOCTET(data[2]) != 0) return; - if (GETJOCTET(data[3]) != 0x2A) return; - } else { - if (GETJOCTET(data[3]) != 0) return; - if (GETJOCTET(data[2]) != 0x2A) return; - } - - /* Get first IFD offset (offset to IFD0) */ - if (is_motorola) { - if (GETJOCTET(data[4]) != 0) return; - if (GETJOCTET(data[5]) != 0) return; - firstoffset = GETJOCTET(data[6]); - firstoffset <<= 8; - firstoffset += GETJOCTET(data[7]); - } else { - if (GETJOCTET(data[7]) != 0) return; - if (GETJOCTET(data[6]) != 0) return; - firstoffset = GETJOCTET(data[5]); - firstoffset <<= 8; - firstoffset += GETJOCTET(data[4]); - } - if (firstoffset > length - 2) return; /* check end of data segment */ - - /* Get the number of directory entries contained in this IFD */ - if (is_motorola) { - number_of_tags = GETJOCTET(data[firstoffset]); - number_of_tags <<= 8; - number_of_tags += GETJOCTET(data[firstoffset+1]); - } else { - number_of_tags = GETJOCTET(data[firstoffset+1]); - number_of_tags <<= 8; - number_of_tags += GETJOCTET(data[firstoffset]); - } - if (number_of_tags == 0) return; - firstoffset += 2; - - /* Search for ExifSubIFD offset Tag in IFD0 */ - for (;;) { - if (firstoffset > length - 12) return; /* check end of data segment */ - /* Get Tag number */ - if (is_motorola) { - tagnum = GETJOCTET(data[firstoffset]); - tagnum <<= 8; - tagnum += GETJOCTET(data[firstoffset+1]); - } else { - tagnum = GETJOCTET(data[firstoffset+1]); - tagnum <<= 8; - tagnum += GETJOCTET(data[firstoffset]); - } - if (tagnum == 0x8769) break; /* found ExifSubIFD offset Tag */ - if (--number_of_tags == 0) return; - firstoffset += 12; - } - - /* Get the ExifSubIFD offset */ - if (is_motorola) { - if (GETJOCTET(data[firstoffset+8]) != 0) return; - if (GETJOCTET(data[firstoffset+9]) != 0) return; - offset = GETJOCTET(data[firstoffset+10]); - offset <<= 8; - offset += GETJOCTET(data[firstoffset+11]); - } else { - if (GETJOCTET(data[firstoffset+11]) != 0) return; - if (GETJOCTET(data[firstoffset+10]) != 0) return; - offset = GETJOCTET(data[firstoffset+9]); - offset <<= 8; - offset += GETJOCTET(data[firstoffset+8]); - } - if (offset > length - 2) return; /* check end of data segment */ - - /* Get the number of directory entries contained in this SubIFD */ - if (is_motorola) { - number_of_tags = GETJOCTET(data[offset]); - number_of_tags <<= 8; - number_of_tags += GETJOCTET(data[offset+1]); - } else { - number_of_tags = GETJOCTET(data[offset+1]); - number_of_tags <<= 8; - number_of_tags += GETJOCTET(data[offset]); - } - if (number_of_tags < 2) return; - offset += 2; - - /* Search for ExifImageWidth and ExifImageHeight Tags in this SubIFD */ - do { - if (offset > length - 12) return; /* check end of data segment */ - /* Get Tag number */ - if (is_motorola) { - tagnum = GETJOCTET(data[offset]); - tagnum <<= 8; - tagnum += GETJOCTET(data[offset+1]); - } else { - tagnum = GETJOCTET(data[offset+1]); - tagnum <<= 8; - tagnum += GETJOCTET(data[offset]); - } - if (tagnum == 0xA002 || tagnum == 0xA003) { - if (tagnum == 0xA002) - new_value = new_width; /* ExifImageWidth Tag */ - else - new_value = new_height; /* ExifImageHeight Tag */ - if (is_motorola) { - data[offset+2] = 0; /* Format = unsigned long (4 octets) */ - data[offset+3] = 4; - data[offset+4] = 0; /* Number Of Components = 1 */ - data[offset+5] = 0; - data[offset+6] = 0; - data[offset+7] = 1; - data[offset+8] = 0; - data[offset+9] = 0; - data[offset+10] = (JOCTET)((new_value >> 8) & 0xFF); - data[offset+11] = (JOCTET)(new_value & 0xFF); - } else { - data[offset+2] = 4; /* Format = unsigned long (4 octets) */ - data[offset+3] = 0; - data[offset+4] = 1; /* Number Of Components = 1 */ - data[offset+5] = 0; - data[offset+6] = 0; - data[offset+7] = 0; - data[offset+8] = (JOCTET)(new_value & 0xFF); - data[offset+9] = (JOCTET)((new_value >> 8) & 0xFF); - data[offset+10] = 0; - data[offset+11] = 0; - } - } - offset += 12; - } while (--number_of_tags); -} - - -/* Adjust output image parameters as needed. - * - * This must be called after jpeg_copy_critical_parameters() - * and before jpeg_write_coefficients(). - * - * The return value is the set of virtual coefficient arrays to be written - * (either the ones allocated by jtransform_request_workspace, or the - * original source data arrays). The caller will need to pass this value - * to jpeg_write_coefficients(). - */ - -GLOBAL(jvirt_barray_ptr *) -jtransform_adjust_parameters (j_decompress_ptr srcinfo, - j_compress_ptr dstinfo, - jvirt_barray_ptr *src_coef_arrays, - jpeg_transform_info *info) -{ - /* If force-to-grayscale is requested, adjust destination parameters */ - if (info->force_grayscale) { - /* First, ensure we have YCbCr or grayscale data, and that the source's - * Y channel is full resolution. (No reasonable person would make Y - * be less than full resolution, so actually coping with that case - * isn't worth extra code space. But we check it to avoid crashing.) - */ - if (((dstinfo->jpeg_color_space == JCS_YCbCr && - dstinfo->num_components == 3) || - (dstinfo->jpeg_color_space == JCS_GRAYSCALE && - dstinfo->num_components == 1)) && - srcinfo->comp_info[0].h_samp_factor == srcinfo->max_h_samp_factor && - srcinfo->comp_info[0].v_samp_factor == srcinfo->max_v_samp_factor) { - /* We use jpeg_set_colorspace to make sure subsidiary settings get fixed - * properly. Among other things, it sets the target h_samp_factor & - * v_samp_factor to 1, which typically won't match the source. - * We have to preserve the source's quantization table number, however. - */ - int sv_quant_tbl_no = dstinfo->comp_info[0].quant_tbl_no; - jpeg_set_colorspace(dstinfo, JCS_GRAYSCALE); - dstinfo->comp_info[0].quant_tbl_no = sv_quant_tbl_no; - } else { - /* Sorry, can't do it */ - ERREXIT(dstinfo, JERR_CONVERSION_NOTIMPL); - } - } else if (info->num_components == 1) { - /* For a single-component source, we force the destination sampling factors - * to 1x1, with or without force_grayscale. This is useful because some - * decoders choke on grayscale images with other sampling factors. - */ - dstinfo->comp_info[0].h_samp_factor = 1; - dstinfo->comp_info[0].v_samp_factor = 1; - } - - /* Correct the destination's image dimensions as necessary - * for rotate/flip, resize, and crop operations. - */ - dstinfo->jpeg_width = info->output_width; - dstinfo->jpeg_height = info->output_height; - - /* Transpose destination image parameters */ - switch (info->transform) { - case JXFORM_TRANSPOSE: - case JXFORM_TRANSVERSE: - case JXFORM_ROT_90: - case JXFORM_ROT_270: - transpose_critical_parameters(dstinfo); - break; - default: - break; - } - - /* Adjust Exif properties */ - if (srcinfo->marker_list != NULL && - srcinfo->marker_list->marker == JPEG_APP0+1 && - srcinfo->marker_list->data_length >= 6 && - GETJOCTET(srcinfo->marker_list->data[0]) == 0x45 && - GETJOCTET(srcinfo->marker_list->data[1]) == 0x78 && - GETJOCTET(srcinfo->marker_list->data[2]) == 0x69 && - GETJOCTET(srcinfo->marker_list->data[3]) == 0x66 && - GETJOCTET(srcinfo->marker_list->data[4]) == 0 && - GETJOCTET(srcinfo->marker_list->data[5]) == 0) { - /* Suppress output of JFIF marker */ - dstinfo->write_JFIF_header = FALSE; - /* Adjust Exif image parameters */ - if (dstinfo->jpeg_width != srcinfo->image_width || - dstinfo->jpeg_height != srcinfo->image_height) - /* Align data segment to start of TIFF structure for parsing */ - adjust_exif_parameters(srcinfo->marker_list->data + 6, - srcinfo->marker_list->data_length - 6, - dstinfo->jpeg_width, dstinfo->jpeg_height); - } - - /* Return the appropriate output data set */ - if (info->workspace_coef_arrays != NULL) - return info->workspace_coef_arrays; - return src_coef_arrays; -} - - -/* Execute the actual transformation, if any. - * - * This must be called *after* jpeg_write_coefficients, because it depends - * on jpeg_write_coefficients to have computed subsidiary values such as - * the per-component width and height fields in the destination object. - * - * Note that some transformations will modify the source data arrays! - */ - -GLOBAL(void) -jtransform_execute_transform (j_decompress_ptr srcinfo, - j_compress_ptr dstinfo, - jvirt_barray_ptr *src_coef_arrays, - jpeg_transform_info *info) -{ - jvirt_barray_ptr *dst_coef_arrays = info->workspace_coef_arrays; - - /* Note: conditions tested here should match those in switch statement - * in jtransform_request_workspace() - */ - switch (info->transform) { - case JXFORM_NONE: - if (info->x_crop_offset != 0 || info->y_crop_offset != 0) - do_crop(srcinfo, dstinfo, info->x_crop_offset, info->y_crop_offset, - src_coef_arrays, dst_coef_arrays); - break; - case JXFORM_FLIP_H: - if (info->y_crop_offset != 0) - do_flip_h(srcinfo, dstinfo, info->x_crop_offset, info->y_crop_offset, - src_coef_arrays, dst_coef_arrays); - else - do_flip_h_no_crop(srcinfo, dstinfo, info->x_crop_offset, - src_coef_arrays); - break; - case JXFORM_FLIP_V: - do_flip_v(srcinfo, dstinfo, info->x_crop_offset, info->y_crop_offset, - src_coef_arrays, dst_coef_arrays); - break; - case JXFORM_TRANSPOSE: - do_transpose(srcinfo, dstinfo, info->x_crop_offset, info->y_crop_offset, - src_coef_arrays, dst_coef_arrays); - break; - case JXFORM_TRANSVERSE: - do_transverse(srcinfo, dstinfo, info->x_crop_offset, info->y_crop_offset, - src_coef_arrays, dst_coef_arrays); - break; - case JXFORM_ROT_90: - do_rot_90(srcinfo, dstinfo, info->x_crop_offset, info->y_crop_offset, - src_coef_arrays, dst_coef_arrays); - break; - case JXFORM_ROT_180: - do_rot_180(srcinfo, dstinfo, info->x_crop_offset, info->y_crop_offset, - src_coef_arrays, dst_coef_arrays); - break; - case JXFORM_ROT_270: - do_rot_270(srcinfo, dstinfo, info->x_crop_offset, info->y_crop_offset, - src_coef_arrays, dst_coef_arrays); - break; - } -} - -/* jtransform_perfect_transform - * - * Determine whether lossless transformation is perfectly - * possible for a specified image and transformation. - * - * Inputs: - * image_width, image_height: source image dimensions. - * MCU_width, MCU_height: pixel dimensions of MCU. - * transform: transformation identifier. - * Parameter sources from initialized jpeg_struct - * (after reading source header): - * image_width = cinfo.image_width - * image_height = cinfo.image_height - * MCU_width = cinfo.max_h_samp_factor * cinfo.block_size - * MCU_height = cinfo.max_v_samp_factor * cinfo.block_size - * Result: - * TRUE = perfect transformation possible - * FALSE = perfect transformation not possible - * (may use custom action then) - */ - -GLOBAL(boolean) -jtransform_perfect_transform(JDIMENSION image_width, JDIMENSION image_height, - int MCU_width, int MCU_height, - JXFORM_CODE transform) -{ - boolean result = TRUE; /* initialize TRUE */ - - switch (transform) { - case JXFORM_FLIP_H: - case JXFORM_ROT_270: - if (image_width % (JDIMENSION) MCU_width) - result = FALSE; - break; - case JXFORM_FLIP_V: - case JXFORM_ROT_90: - if (image_height % (JDIMENSION) MCU_height) - result = FALSE; - break; - case JXFORM_TRANSVERSE: - case JXFORM_ROT_180: - if (image_width % (JDIMENSION) MCU_width) - result = FALSE; - if (image_height % (JDIMENSION) MCU_height) - result = FALSE; - break; - default: - break; - } - - return result; -} - -#endif /* TRANSFORMS_SUPPORTED */ - - -/* Setup decompression object to save desired markers in memory. - * This must be called before jpeg_read_header() to have the desired effect. - */ - -GLOBAL(void) -jcopy_markers_setup (j_decompress_ptr srcinfo, JCOPY_OPTION option) -{ -#ifdef SAVE_MARKERS_SUPPORTED - int m; - - /* Save comments except under NONE option */ - if (option != JCOPYOPT_NONE) { - jpeg_save_markers(srcinfo, JPEG_COM, 0xFFFF); - } - /* Save all types of APPn markers iff ALL option */ - if (option == JCOPYOPT_ALL) { - for (m = 0; m < 16; m++) - jpeg_save_markers(srcinfo, JPEG_APP0 + m, 0xFFFF); - } -#endif /* SAVE_MARKERS_SUPPORTED */ -} - -/* Copy markers saved in the given source object to the destination object. - * This should be called just after jpeg_start_compress() or - * jpeg_write_coefficients(). - * Note that those routines will have written the SOI, and also the - * JFIF APP0 or Adobe APP14 markers if selected. - */ - -GLOBAL(void) -jcopy_markers_execute (j_decompress_ptr srcinfo, j_compress_ptr dstinfo, - JCOPY_OPTION option) -{ - jpeg_saved_marker_ptr marker; - - /* In the current implementation, we don't actually need to examine the - * option flag here; we just copy everything that got saved. - * But to avoid confusion, we do not output JFIF and Adobe APP14 markers - * if the encoder library already wrote one. - */ - for (marker = srcinfo->marker_list; marker != NULL; marker = marker->next) { - if (dstinfo->write_JFIF_header && - marker->marker == JPEG_APP0 && - marker->data_length >= 5 && - GETJOCTET(marker->data[0]) == 0x4A && - GETJOCTET(marker->data[1]) == 0x46 && - GETJOCTET(marker->data[2]) == 0x49 && - GETJOCTET(marker->data[3]) == 0x46 && - GETJOCTET(marker->data[4]) == 0) - continue; /* reject duplicate JFIF */ - if (dstinfo->write_Adobe_marker && - marker->marker == JPEG_APP0+14 && - marker->data_length >= 5 && - GETJOCTET(marker->data[0]) == 0x41 && - GETJOCTET(marker->data[1]) == 0x64 && - GETJOCTET(marker->data[2]) == 0x6F && - GETJOCTET(marker->data[3]) == 0x62 && - GETJOCTET(marker->data[4]) == 0x65) - continue; /* reject duplicate Adobe */ -#ifdef NEED_FAR_POINTERS - /* We could use jpeg_write_marker if the data weren't FAR... */ - { - unsigned int i; - jpeg_write_m_header(dstinfo, marker->marker, marker->data_length); - for (i = 0; i < marker->data_length; i++) - jpeg_write_m_byte(dstinfo, marker->data[i]); - } -#else - jpeg_write_marker(dstinfo, marker->marker, - marker->data, marker->data_length); -#endif - } -} diff --git a/jpg/transupp.h b/jpg/transupp.h deleted file mode 100644 index 9aa0af3..0000000 --- a/jpg/transupp.h +++ /dev/null @@ -1,213 +0,0 @@ -/* - * transupp.h - * - * Copyright (C) 1997-2011, Thomas G. Lane, Guido Vollbeding. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file contains declarations for image transformation routines and - * other utility code used by the jpegtran sample application. These are - * NOT part of the core JPEG library. But we keep these routines separate - * from jpegtran.c to ease the task of maintaining jpegtran-like programs - * that have other user interfaces. - * - * NOTE: all the routines declared here have very specific requirements - * about when they are to be executed during the reading and writing of the - * source and destination files. See the comments in transupp.c, or see - * jpegtran.c for an example of correct usage. - */ - -/* If you happen not to want the image transform support, disable it here */ -#ifndef TRANSFORMS_SUPPORTED -#define TRANSFORMS_SUPPORTED 1 /* 0 disables transform code */ -#endif - -/* - * Although rotating and flipping data expressed as DCT coefficients is not - * hard, there is an asymmetry in the JPEG format specification for images - * whose dimensions aren't multiples of the iMCU size. The right and bottom - * image edges are padded out to the next iMCU boundary with junk data; but - * no padding is possible at the top and left edges. If we were to flip - * the whole image including the pad data, then pad garbage would become - * visible at the top and/or left, and real pixels would disappear into the - * pad margins --- perhaps permanently, since encoders & decoders may not - * bother to preserve DCT blocks that appear to be completely outside the - * nominal image area. So, we have to exclude any partial iMCUs from the - * basic transformation. - * - * Transpose is the only transformation that can handle partial iMCUs at the - * right and bottom edges completely cleanly. flip_h can flip partial iMCUs - * at the bottom, but leaves any partial iMCUs at the right edge untouched. - * Similarly flip_v leaves any partial iMCUs at the bottom edge untouched. - * The other transforms are defined as combinations of these basic transforms - * and process edge blocks in a way that preserves the equivalence. - * - * The "trim" option causes untransformable partial iMCUs to be dropped; - * this is not strictly lossless, but it usually gives the best-looking - * result for odd-size images. Note that when this option is active, - * the expected mathematical equivalences between the transforms may not hold. - * (For example, -rot 270 -trim trims only the bottom edge, but -rot 90 -trim - * followed by -rot 180 -trim trims both edges.) - * - * We also offer a lossless-crop option, which discards data outside a given - * image region but losslessly preserves what is inside. Like the rotate and - * flip transforms, lossless crop is restricted by the JPEG format: the upper - * left corner of the selected region must fall on an iMCU boundary. If this - * does not hold for the given crop parameters, we silently move the upper left - * corner up and/or left to make it so, simultaneously increasing the region - * dimensions to keep the lower right crop corner unchanged. (Thus, the - * output image covers at least the requested region, but may cover more.) - * The adjustment of the region dimensions may be optionally disabled. - * - * We also provide a lossless-resize option, which is kind of a lossless-crop - * operation in the DCT coefficient block domain - it discards higher-order - * coefficients and losslessly preserves lower-order coefficients of a - * sub-block. - * - * Rotate/flip transform, resize, and crop can be requested together in a - * single invocation. The crop is applied last --- that is, the crop region - * is specified in terms of the destination image after transform/resize. - * - * We also offer a "force to grayscale" option, which simply discards the - * chrominance channels of a YCbCr image. This is lossless in the sense that - * the luminance channel is preserved exactly. It's not the same kind of - * thing as the rotate/flip transformations, but it's convenient to handle it - * as part of this package, mainly because the transformation routines have to - * be aware of the option to know how many components to work on. - */ - - -/* Short forms of external names for systems with brain-damaged linkers. */ - -#ifdef NEED_SHORT_EXTERNAL_NAMES -#define jtransform_parse_crop_spec jTrParCrop -#define jtransform_request_workspace jTrRequest -#define jtransform_adjust_parameters jTrAdjust -#define jtransform_execute_transform jTrExec -#define jtransform_perfect_transform jTrPerfect -#define jcopy_markers_setup jCMrkSetup -#define jcopy_markers_execute jCMrkExec -#endif /* NEED_SHORT_EXTERNAL_NAMES */ - - -/* - * Codes for supported types of image transformations. - */ - -typedef enum { - JXFORM_NONE, /* no transformation */ - JXFORM_FLIP_H, /* horizontal flip */ - JXFORM_FLIP_V, /* vertical flip */ - JXFORM_TRANSPOSE, /* transpose across UL-to-LR axis */ - JXFORM_TRANSVERSE, /* transpose across UR-to-LL axis */ - JXFORM_ROT_90, /* 90-degree clockwise rotation */ - JXFORM_ROT_180, /* 180-degree rotation */ - JXFORM_ROT_270 /* 270-degree clockwise (or 90 ccw) */ -} JXFORM_CODE; - -/* - * Codes for crop parameters, which can individually be unspecified, - * positive or negative for xoffset or yoffset, - * positive or forced for width or height. - */ - -typedef enum { - JCROP_UNSET, - JCROP_POS, - JCROP_NEG, - JCROP_FORCE -} JCROP_CODE; - -/* - * Transform parameters struct. - * NB: application must not change any elements of this struct after - * calling jtransform_request_workspace. - */ - -typedef struct { - /* Options: set by caller */ - JXFORM_CODE transform; /* image transform operator */ - boolean perfect; /* if TRUE, fail if partial MCUs are requested */ - boolean trim; /* if TRUE, trim partial MCUs as needed */ - boolean force_grayscale; /* if TRUE, convert color image to grayscale */ - boolean crop; /* if TRUE, crop source image */ - - /* Crop parameters: application need not set these unless crop is TRUE. - * These can be filled in by jtransform_parse_crop_spec(). - */ - JDIMENSION crop_width; /* Width of selected region */ - JCROP_CODE crop_width_set; /* (forced disables adjustment) */ - JDIMENSION crop_height; /* Height of selected region */ - JCROP_CODE crop_height_set; /* (forced disables adjustment) */ - JDIMENSION crop_xoffset; /* X offset of selected region */ - JCROP_CODE crop_xoffset_set; /* (negative measures from right edge) */ - JDIMENSION crop_yoffset; /* Y offset of selected region */ - JCROP_CODE crop_yoffset_set; /* (negative measures from bottom edge) */ - - /* Internal workspace: caller should not touch these */ - int num_components; /* # of components in workspace */ - jvirt_barray_ptr * workspace_coef_arrays; /* workspace for transformations */ - JDIMENSION output_width; /* cropped destination dimensions */ - JDIMENSION output_height; - JDIMENSION x_crop_offset; /* destination crop offsets measured in iMCUs */ - JDIMENSION y_crop_offset; - int iMCU_sample_width; /* destination iMCU size */ - int iMCU_sample_height; -} jpeg_transform_info; - - -#if TRANSFORMS_SUPPORTED - -/* Parse a crop specification (written in X11 geometry style) */ -EXTERN(boolean) jtransform_parse_crop_spec - JPP((jpeg_transform_info *info, const char *spec)); -/* Request any required workspace */ -EXTERN(boolean) jtransform_request_workspace - JPP((j_decompress_ptr srcinfo, jpeg_transform_info *info)); -/* Adjust output image parameters */ -EXTERN(jvirt_barray_ptr *) jtransform_adjust_parameters - JPP((j_decompress_ptr srcinfo, j_compress_ptr dstinfo, - jvirt_barray_ptr *src_coef_arrays, - jpeg_transform_info *info)); -/* Execute the actual transformation, if any */ -EXTERN(void) jtransform_execute_transform - JPP((j_decompress_ptr srcinfo, j_compress_ptr dstinfo, - jvirt_barray_ptr *src_coef_arrays, - jpeg_transform_info *info)); -/* Determine whether lossless transformation is perfectly - * possible for a specified image and transformation. - */ -EXTERN(boolean) jtransform_perfect_transform - JPP((JDIMENSION image_width, JDIMENSION image_height, - int MCU_width, int MCU_height, - JXFORM_CODE transform)); - -/* jtransform_execute_transform used to be called - * jtransform_execute_transformation, but some compilers complain about - * routine names that long. This macro is here to avoid breaking any - * old source code that uses the original name... - */ -#define jtransform_execute_transformation jtransform_execute_transform - -#endif /* TRANSFORMS_SUPPORTED */ - - -/* - * Support for copying optional markers from source to destination file. - */ - -typedef enum { - JCOPYOPT_NONE, /* copy no optional markers */ - JCOPYOPT_COMMENTS, /* copy only comment (COM) markers */ - JCOPYOPT_ALL /* copy all optional markers */ -} JCOPY_OPTION; - -#define JCOPYOPT_DEFAULT JCOPYOPT_COMMENTS /* recommended default */ - -/* Setup decompression object to save desired markers in memory */ -EXTERN(void) jcopy_markers_setup - JPP((j_decompress_ptr srcinfo, JCOPY_OPTION option)); -/* Copy markers saved in the given source object to the destination object */ -EXTERN(void) jcopy_markers_execute - JPP((j_decompress_ptr srcinfo, j_compress_ptr dstinfo, - JCOPY_OPTION option)); diff --git a/jpg/usage.txt b/jpg/usage.txt deleted file mode 100644 index de9def7..0000000 --- a/jpg/usage.txt +++ /dev/null @@ -1,637 +0,0 @@ -USAGE instructions for the Independent JPEG Group's JPEG software -================================================================= - -This file describes usage of the JPEG conversion programs cjpeg and djpeg, -as well as the utility programs jpegtran, rdjpgcom and wrjpgcom. (See -the other documentation files if you wish to use the JPEG library within -your own programs.) - -If you are on a Unix machine you may prefer to read the Unix-style manual -pages in files cjpeg.1, djpeg.1, jpegtran.1, rdjpgcom.1, wrjpgcom.1. - - -INTRODUCTION - -These programs implement JPEG image encoding, decoding, and transcoding. -JPEG (pronounced "jay-peg") is a standardized compression method for -full-color and gray-scale images. - - -GENERAL USAGE - -We provide two programs, cjpeg to compress an image file into JPEG format, -and djpeg to decompress a JPEG file back into a conventional image format. - -On Unix-like systems, you say: - cjpeg [switches] [imagefile] >jpegfile -or - djpeg [switches] [jpegfile] >imagefile -The programs read the specified input file, or standard input if none is -named. They always write to standard output (with trace/error messages to -standard error). These conventions are handy for piping images between -programs. - -On most non-Unix systems, you say: - cjpeg [switches] imagefile jpegfile -or - djpeg [switches] jpegfile imagefile -i.e., both the input and output files are named on the command line. This -style is a little more foolproof, and it loses no functionality if you don't -have pipes. (You can get this style on Unix too, if you prefer, by defining -TWO_FILE_COMMANDLINE when you compile the programs; see install.txt.) - -You can also say: - cjpeg [switches] -outfile jpegfile imagefile -or - djpeg [switches] -outfile imagefile jpegfile -This syntax works on all systems, so it is useful for scripts. - -The currently supported image file formats are: PPM (PBMPLUS color format), -PGM (PBMPLUS gray-scale format), BMP, Targa, and RLE (Utah Raster Toolkit -format). (RLE is supported only if the URT library is available.) -cjpeg recognizes the input image format automatically, with the exception -of some Targa-format files. You have to tell djpeg which format to generate. - -JPEG files are in the defacto standard JFIF file format. There are other, -less widely used JPEG-based file formats, but we don't support them. - -All switch names may be abbreviated; for example, -grayscale may be written --gray or -gr. Most of the "basic" switches can be abbreviated to as little as -one letter. Upper and lower case are equivalent (-BMP is the same as -bmp). -British spellings are also accepted (e.g., -greyscale), though for brevity -these are not mentioned below. - - -CJPEG DETAILS - -The basic command line switches for cjpeg are: - - -quality N[,...] Scale quantization tables to adjust image quality. - Quality is 0 (worst) to 100 (best); default is 75. - (See below for more info.) - - -grayscale Create monochrome JPEG file from color input. - Be sure to use this switch when compressing a grayscale - BMP file, because cjpeg isn't bright enough to notice - whether a BMP file uses only shades of gray. By - saying -grayscale, you'll get a smaller JPEG file that - takes less time to process. - - -rgb Create RGB JPEG file. - Using this switch suppresses the conversion from RGB - colorspace input to the default YCbCr JPEG colorspace. - Use this switch in combination with the -block N - switch (see below) for lossless JPEG coding. - - -optimize Perform optimization of entropy encoding parameters. - Without this, default encoding parameters are used. - -optimize usually makes the JPEG file a little smaller, - but cjpeg runs somewhat slower and needs much more - memory. Image quality and speed of decompression are - unaffected by -optimize. - - -progressive Create progressive JPEG file (see below). - - -scale M/N Scale the output image by a factor M/N. Currently - supported scale factors are M/N with all N from 1 to - 16, where M is the destination DCT size, which is 8 by - default (see -block N switch below). - - -targa Input file is Targa format. Targa files that contain - an "identification" field will not be automatically - recognized by cjpeg; for such files you must specify - -targa to make cjpeg treat the input as Targa format. - For most Targa files, you won't need this switch. - -The -quality switch lets you trade off compressed file size against quality of -the reconstructed image: the higher the quality setting, the larger the JPEG -file, and the closer the output image will be to the original input. Normally -you want to use the lowest quality setting (smallest file) that decompresses -into something visually indistinguishable from the original image. For this -purpose the quality setting should be between 50 and 95; the default of 75 is -often about right. If you see defects at -quality 75, then go up 5 or 10 -counts at a time until you are happy with the output image. (The optimal -setting will vary from one image to another.) - --quality 100 will generate a quantization table of all 1's, minimizing loss -in the quantization step (but there is still information loss in subsampling, -as well as roundoff error). This setting is mainly of interest for -experimental purposes. Quality values above about 95 are NOT recommended for -normal use; the compressed file size goes up dramatically for hardly any gain -in output image quality. - -In the other direction, quality values below 50 will produce very small files -of low image quality. Settings around 5 to 10 might be useful in preparing an -index of a large image library, for example. Try -quality 2 (or so) for some -amusing Cubist effects. (Note: quality values below about 25 generate 2-byte -quantization tables, which are considered optional in the JPEG standard. -cjpeg emits a warning message when you give such a quality value, because some -other JPEG programs may be unable to decode the resulting file. Use -baseline -if you need to ensure compatibility at low quality values.) - -The -quality option has been extended in IJG version 7 for support of separate -quality settings for luminance and chrominance (or in general, for every -provided quantization table slot). This feature is useful for high-quality -applications which cannot accept the damage of color data by coarse -subsampling settings. You can now easily reduce the color data amount more -smoothly with finer control without separate subsampling. The resulting file -is fully compliant with standard JPEG decoders. -Note that the -quality ratings refer to the quantization table slots, and that -the last value is replicated if there are more q-table slots than parameters. -The default q-table slots are 0 for luminance and 1 for chrominance with -default tables as given in the JPEG standard. This is compatible with the old -behaviour in case that only one parameter is given, which is then used for -both luminance and chrominance (slots 0 and 1). More or custom quantization -tables can be set with -qtables and assigned to components with -qslots -parameter (see the "wizard" switches below). -CAUTION: You must explicitly add -sample 1x1 for efficient separate color -quality selection, since the default value used by library is 2x2! - -The -progressive switch creates a "progressive JPEG" file. In this type of -JPEG file, the data is stored in multiple scans of increasing quality. If the -file is being transmitted over a slow communications link, the decoder can use -the first scan to display a low-quality image very quickly, and can then -improve the display with each subsequent scan. The final image is exactly -equivalent to a standard JPEG file of the same quality setting, and the total -file size is about the same --- often a little smaller. - -Switches for advanced users: - - -arithmetic Use arithmetic coding. CAUTION: arithmetic coded JPEG - is not yet widely implemented, so many decoders will - be unable to view an arithmetic coded JPEG file at - all. - - -block N Set DCT block size. All N from 1 to 16 are possible. - Default is 8 (baseline format). - Larger values produce higher compression, - smaller values produce higher quality - (exact DCT stage possible with 1 or 2; with the - default quality of 75 and default Luminance qtable - the DCT+Quantization stage is lossless for N=1). - CAUTION: An implementation of the JPEG SmartScale - extension is required for this feature. SmartScale - enabled JPEG is not yet widely implemented, so many - decoders will be unable to view a SmartScale extended - JPEG file at all. - - -dct int Use integer DCT method (default). - -dct fast Use fast integer DCT (less accurate). - -dct float Use floating-point DCT method. - The float method is very slightly more accurate than - the int method, but is much slower unless your machine - has very fast floating-point hardware. Also note that - results of the floating-point method may vary slightly - across machines, while the integer methods should give - the same results everywhere. The fast integer method - is much less accurate than the other two. - - -nosmooth Don't use high-quality downsampling. - - -restart N Emit a JPEG restart marker every N MCU rows, or every - N MCU blocks if "B" is attached to the number. - -restart 0 (the default) means no restart markers. - - -smooth N Smooth the input image to eliminate dithering noise. - N, ranging from 1 to 100, indicates the strength of - smoothing. 0 (the default) means no smoothing. - - -maxmemory N Set limit for amount of memory to use in processing - large images. Value is in thousands of bytes, or - millions of bytes if "M" is attached to the number. - For example, -max 4m selects 4000000 bytes. If more - space is needed, temporary files will be used. - - -verbose Enable debug printout. More -v's give more printout. - or -debug Also, version information is printed at startup. - -The -restart option inserts extra markers that allow a JPEG decoder to -resynchronize after a transmission error. Without restart markers, any damage -to a compressed file will usually ruin the image from the point of the error -to the end of the image; with restart markers, the damage is usually confined -to the portion of the image up to the next restart marker. Of course, the -restart markers occupy extra space. We recommend -restart 1 for images that -will be transmitted across unreliable networks such as Usenet. - -The -smooth option filters the input to eliminate fine-scale noise. This is -often useful when converting dithered images to JPEG: a moderate smoothing -factor of 10 to 50 gets rid of dithering patterns in the input file, resulting -in a smaller JPEG file and a better-looking image. Too large a smoothing -factor will visibly blur the image, however. - -Switches for wizards: - - -baseline Force baseline-compatible quantization tables to be - generated. This clamps quantization values to 8 bits - even at low quality settings. (This switch is poorly - named, since it does not ensure that the output is - actually baseline JPEG. For example, you can use - -baseline and -progressive together.) - - -qtables file Use the quantization tables given in the specified - text file. - - -qslots N[,...] Select which quantization table to use for each color - component. - - -sample HxV[,...] Set JPEG sampling factors for each color component. - - -scans file Use the scan script given in the specified text file. - -The "wizard" switches are intended for experimentation with JPEG. If you -don't know what you are doing, DON'T USE THEM. These switches are documented -further in the file wizard.txt. - - -DJPEG DETAILS - -The basic command line switches for djpeg are: - - -colors N Reduce image to at most N colors. This reduces the - or -quantize N number of colors used in the output image, so that it - can be displayed on a colormapped display or stored in - a colormapped file format. For example, if you have - an 8-bit display, you'd need to reduce to 256 or fewer - colors. (-colors is the recommended name, -quantize - is provided only for backwards compatibility.) - - -fast Select recommended processing options for fast, low - quality output. (The default options are chosen for - highest quality output.) Currently, this is equivalent - to "-dct fast -nosmooth -onepass -dither ordered". - - -grayscale Force gray-scale output even if JPEG file is color. - Useful for viewing on monochrome displays; also, - djpeg runs noticeably faster in this mode. - - -scale M/N Scale the output image by a factor M/N. Currently - supported scale factors are M/N with all M from 1 to - 16, where N is the source DCT size, which is 8 for - baseline JPEG. If the /N part is omitted, then M - specifies the DCT scaled size to be applied on the - given input. For baseline JPEG this is equivalent to - M/8 scaling, since the source DCT size for baseline - JPEG is 8. Scaling is handy if the image is larger - than your screen; also, djpeg runs much faster when - scaling down the output. - - -bmp Select BMP output format (Windows flavor). 8-bit - colormapped format is emitted if -colors or -grayscale - is specified, or if the JPEG file is gray-scale; - otherwise, 24-bit full-color format is emitted. - - -gif Select GIF output format. Since GIF does not support - more than 256 colors, -colors 256 is assumed (unless - you specify a smaller number of colors). If you - specify -fast, the default number of colors is 216. - - -os2 Select BMP output format (OS/2 1.x flavor). 8-bit - colormapped format is emitted if -colors or -grayscale - is specified, or if the JPEG file is gray-scale; - otherwise, 24-bit full-color format is emitted. - - -pnm Select PBMPLUS (PPM/PGM) output format (this is the - default format). PGM is emitted if the JPEG file is - gray-scale or if -grayscale is specified; otherwise - PPM is emitted. - - -rle Select RLE output format. (Requires URT library.) - - -targa Select Targa output format. Gray-scale format is - emitted if the JPEG file is gray-scale or if - -grayscale is specified; otherwise, colormapped format - is emitted if -colors is specified; otherwise, 24-bit - full-color format is emitted. - -Switches for advanced users: - - -dct int Use integer DCT method (default). - -dct fast Use fast integer DCT (less accurate). - -dct float Use floating-point DCT method. - The float method is very slightly more accurate than - the int method, but is much slower unless your machine - has very fast floating-point hardware. Also note that - results of the floating-point method may vary slightly - across machines, while the integer methods should give - the same results everywhere. The fast integer method - is much less accurate than the other two. - - -dither fs Use Floyd-Steinberg dithering in color quantization. - -dither ordered Use ordered dithering in color quantization. - -dither none Do not use dithering in color quantization. - By default, Floyd-Steinberg dithering is applied when - quantizing colors; this is slow but usually produces - the best results. Ordered dither is a compromise - between speed and quality; no dithering is fast but - usually looks awful. Note that these switches have - no effect unless color quantization is being done. - Ordered dither is only available in -onepass mode. - - -map FILE Quantize to the colors used in the specified image - file. This is useful for producing multiple files - with identical color maps, or for forcing a predefined - set of colors to be used. The FILE must be a GIF - or PPM file. This option overrides -colors and - -onepass. - - -nosmooth Don't use high-quality upsampling. - - -onepass Use one-pass instead of two-pass color quantization. - The one-pass method is faster and needs less memory, - but it produces a lower-quality image. -onepass is - ignored unless you also say -colors N. Also, - the one-pass method is always used for gray-scale - output (the two-pass method is no improvement then). - - -maxmemory N Set limit for amount of memory to use in processing - large images. Value is in thousands of bytes, or - millions of bytes if "M" is attached to the number. - For example, -max 4m selects 4000000 bytes. If more - space is needed, temporary files will be used. - - -verbose Enable debug printout. More -v's give more printout. - or -debug Also, version information is printed at startup. - - -HINTS FOR CJPEG - -Color GIF files are not the ideal input for JPEG; JPEG is really intended for -compressing full-color (24-bit) images. In particular, don't try to convert -cartoons, line drawings, and other images that have only a few distinct -colors. GIF works great on these, JPEG does not. If you want to convert a -GIF to JPEG, you should experiment with cjpeg's -quality and -smooth options -to get a satisfactory conversion. -smooth 10 or so is often helpful. - -Avoid running an image through a series of JPEG compression/decompression -cycles. Image quality loss will accumulate; after ten or so cycles the image -may be noticeably worse than it was after one cycle. It's best to use a -lossless format while manipulating an image, then convert to JPEG format when -you are ready to file the image away. - -The -optimize option to cjpeg is worth using when you are making a "final" -version for posting or archiving. It's also a win when you are using low -quality settings to make very small JPEG files; the percentage improvement -is often a lot more than it is on larger files. (At present, -optimize -mode is always selected when generating progressive JPEG files.) - -GIF input files are no longer supported, to avoid the Unisys LZW patent. -(Conversion of GIF files to JPEG is usually a bad idea anyway.) - - -HINTS FOR DJPEG - -To get a quick preview of an image, use the -grayscale and/or -scale switches. -"-grayscale -scale 1/8" is the fastest case. - -Several options are available that trade off image quality to gain speed. -"-fast" turns on the recommended settings. - -"-dct fast" and/or "-nosmooth" gain speed at a small sacrifice in quality. -When producing a color-quantized image, "-onepass -dither ordered" is fast but -much lower quality than the default behavior. "-dither none" may give -acceptable results in two-pass mode, but is seldom tolerable in one-pass mode. - -If you are fortunate enough to have very fast floating point hardware, -"-dct float" may be even faster than "-dct fast". But on most machines -"-dct float" is slower than "-dct int"; in this case it is not worth using, -because its theoretical accuracy advantage is too small to be significant -in practice. - -Two-pass color quantization requires a good deal of memory; on MS-DOS machines -it may run out of memory even with -maxmemory 0. In that case you can still -decompress, with some loss of image quality, by specifying -onepass for -one-pass quantization. - -To avoid the Unisys LZW patent, djpeg produces uncompressed GIF files. These -are larger than they should be, but are readable by standard GIF decoders. - - -HINTS FOR BOTH PROGRAMS - -If more space is needed than will fit in the available main memory (as -determined by -maxmemory), temporary files will be used. (MS-DOS versions -will try to get extended or expanded memory first.) The temporary files are -often rather large: in typical cases they occupy three bytes per pixel, for -example 3*800*600 = 1.44Mb for an 800x600 image. If you don't have enough -free disk space, leave out -progressive and -optimize (for cjpeg) or specify --onepass (for djpeg). - -On MS-DOS, the temporary files are created in the directory named by the TMP -or TEMP environment variable, or in the current directory if neither of those -exist. Amiga implementations put the temp files in the directory named by -JPEGTMP:, so be sure to assign JPEGTMP: to a disk partition with adequate free -space. - -The default memory usage limit (-maxmemory) is set when the software is -compiled. If you get an "insufficient memory" error, try specifying a smaller --maxmemory value, even -maxmemory 0 to use the absolute minimum space. You -may want to recompile with a smaller default value if this happens often. - -On machines that have "environment" variables, you can define the environment -variable JPEGMEM to set the default memory limit. The value is specified as -described for the -maxmemory switch. JPEGMEM overrides the default value -specified when the program was compiled, and itself is overridden by an -explicit -maxmemory switch. - -On MS-DOS machines, -maxmemory is the amount of main (conventional) memory to -use. (Extended or expanded memory is also used if available.) Most -DOS-specific versions of this software do their own memory space estimation -and do not need you to specify -maxmemory. - - -JPEGTRAN - -jpegtran performs various useful transformations of JPEG files. -It can translate the coded representation from one variant of JPEG to another, -for example from baseline JPEG to progressive JPEG or vice versa. It can also -perform some rearrangements of the image data, for example turning an image -from landscape to portrait format by rotation. - -jpegtran works by rearranging the compressed data (DCT coefficients), without -ever fully decoding the image. Therefore, its transformations are lossless: -there is no image degradation at all, which would not be true if you used -djpeg followed by cjpeg to accomplish the same conversion. But by the same -token, jpegtran cannot perform lossy operations such as changing the image -quality. - -jpegtran uses a command line syntax similar to cjpeg or djpeg. -On Unix-like systems, you say: - jpegtran [switches] [inputfile] >outputfile -On most non-Unix systems, you say: - jpegtran [switches] inputfile outputfile -where both the input and output files are JPEG files. - -To specify the coded JPEG representation used in the output file, -jpegtran accepts a subset of the switches recognized by cjpeg: - -optimize Perform optimization of entropy encoding parameters. - -progressive Create progressive JPEG file. - -arithmetic Use arithmetic coding. - -restart N Emit a JPEG restart marker every N MCU rows, or every - N MCU blocks if "B" is attached to the number. - -scans file Use the scan script given in the specified text file. -See the previous discussion of cjpeg for more details about these switches. -If you specify none of these switches, you get a plain baseline-JPEG output -file. The quality setting and so forth are determined by the input file. - -The image can be losslessly transformed by giving one of these switches: - -flip horizontal Mirror image horizontally (left-right). - -flip vertical Mirror image vertically (top-bottom). - -rotate 90 Rotate image 90 degrees clockwise. - -rotate 180 Rotate image 180 degrees. - -rotate 270 Rotate image 270 degrees clockwise (or 90 ccw). - -transpose Transpose image (across UL-to-LR axis). - -transverse Transverse transpose (across UR-to-LL axis). - -The transpose transformation has no restrictions regarding image dimensions. -The other transformations operate rather oddly if the image dimensions are not -a multiple of the iMCU size (usually 8 or 16 pixels), because they can only -transform complete blocks of DCT coefficient data in the desired way. - -jpegtran's default behavior when transforming an odd-size image is designed -to preserve exact reversibility and mathematical consistency of the -transformation set. As stated, transpose is able to flip the entire image -area. Horizontal mirroring leaves any partial iMCU column at the right edge -untouched, but is able to flip all rows of the image. Similarly, vertical -mirroring leaves any partial iMCU row at the bottom edge untouched, but is -able to flip all columns. The other transforms can be built up as sequences -of transpose and flip operations; for consistency, their actions on edge -pixels are defined to be the same as the end result of the corresponding -transpose-and-flip sequence. - -For practical use, you may prefer to discard any untransformable edge pixels -rather than having a strange-looking strip along the right and/or bottom edges -of a transformed image. To do this, add the -trim switch: - -trim Drop non-transformable edge blocks. -Obviously, a transformation with -trim is not reversible, so strictly speaking -jpegtran with this switch is not lossless. Also, the expected mathematical -equivalences between the transformations no longer hold. For example, -"-rot 270 -trim" trims only the bottom edge, but "-rot 90 -trim" followed by -"-rot 180 -trim" trims both edges. - -If you are only interested in perfect transformation, add the -perfect switch: - -perfect Fails with an error if the transformation is not - perfect. -For example you may want to do - jpegtran -rot 90 -perfect foo.jpg || djpeg foo.jpg | pnmflip -r90 | cjpeg -to do a perfect rotation if available or an approximated one if not. - -We also offer a lossless-crop option, which discards data outside a given -image region but losslessly preserves what is inside. Like the rotate and -flip transforms, lossless crop is restricted by the current JPEG format: the -upper left corner of the selected region must fall on an iMCU boundary. If -this does not hold for the given crop parameters, we silently move the upper -left corner up and/or left to make it so, simultaneously increasing the region -dimensions to keep the lower right crop corner unchanged. (Thus, the output -image covers at least the requested region, but may cover more.) - -The image can be losslessly cropped by giving the switch: - -crop WxH+X+Y Crop to a rectangular subarea of width W, height H - starting at point X,Y. - -Other not-strictly-lossless transformation switches are: - - -grayscale Force grayscale output. -This option discards the chrominance channels if the input image is YCbCr -(ie, a standard color JPEG), resulting in a grayscale JPEG file. The -luminance channel is preserved exactly, so this is a better method of reducing -to grayscale than decompression, conversion, and recompression. This switch -is particularly handy for fixing a monochrome picture that was mistakenly -encoded as a color JPEG. (In such a case, the space savings from getting rid -of the near-empty chroma channels won't be large; but the decoding time for -a grayscale JPEG is substantially less than that for a color JPEG.) - - -scale M/N Scale the output image by a factor M/N. -Currently supported scale factors are M/N with all M from 1 to 16, where N is -the source DCT size, which is 8 for baseline JPEG. If the /N part is omitted, -then M specifies the DCT scaled size to be applied on the given input. For -baseline JPEG this is equivalent to M/8 scaling, since the source DCT size -for baseline JPEG is 8. CAUTION: An implementation of the JPEG SmartScale -extension is required for this feature. SmartScale enabled JPEG is not yet -widely implemented, so many decoders will be unable to view a SmartScale -extended JPEG file at all. - -jpegtran also recognizes these switches that control what to do with "extra" -markers, such as comment blocks: - -copy none Copy no extra markers from source file. This setting - suppresses all comments and other excess baggage - present in the source file. - -copy comments Copy only comment markers. This setting copies - comments from the source file, but discards - any other inessential (for image display) data. - -copy all Copy all extra markers. This setting preserves - miscellaneous markers found in the source file, such - as JFIF thumbnails, Exif data, and Photoshop settings. - In some files these extra markers can be sizable. -The default behavior is -copy comments. (Note: in IJG releases v6 and v6a, -jpegtran always did the equivalent of -copy none.) - -Additional switches recognized by jpegtran are: - -outfile filename - -maxmemory N - -verbose - -debug -These work the same as in cjpeg or djpeg. - - -THE COMMENT UTILITIES - -The JPEG standard allows "comment" (COM) blocks to occur within a JPEG file. -Although the standard doesn't actually define what COM blocks are for, they -are widely used to hold user-supplied text strings. This lets you add -annotations, titles, index terms, etc to your JPEG files, and later retrieve -them as text. COM blocks do not interfere with the image stored in the JPEG -file. The maximum size of a COM block is 64K, but you can have as many of -them as you like in one JPEG file. - -We provide two utility programs to display COM block contents and add COM -blocks to a JPEG file. - -rdjpgcom searches a JPEG file and prints the contents of any COM blocks on -standard output. The command line syntax is - rdjpgcom [-raw] [-verbose] [inputfilename] -The switch "-raw" (or just "-r") causes rdjpgcom to also output non-printable -characters in comments, which are normally escaped for security reasons. -The switch "-verbose" (or just "-v") causes rdjpgcom to also display the JPEG -image dimensions. If you omit the input file name from the command line, -the JPEG file is read from standard input. (This may not work on some -operating systems, if binary data can't be read from stdin.) - -wrjpgcom adds a COM block, containing text you provide, to a JPEG file. -Ordinarily, the COM block is added after any existing COM blocks, but you -can delete the old COM blocks if you wish. wrjpgcom produces a new JPEG -file; it does not modify the input file. DO NOT try to overwrite the input -file by directing wrjpgcom's output back into it; on most systems this will -just destroy your file. - -The command line syntax for wrjpgcom is similar to cjpeg's. On Unix-like -systems, it is - wrjpgcom [switches] [inputfilename] -The output file is written to standard output. The input file comes from -the named file, or from standard input if no input file is named. - -On most non-Unix systems, the syntax is - wrjpgcom [switches] inputfilename outputfilename -where both input and output file names must be given explicitly. - -wrjpgcom understands three switches: - -replace Delete any existing COM blocks from the file. - -comment "Comment text" Supply new COM text on command line. - -cfile name Read text for new COM block from named file. -(Switch names can be abbreviated.) If you have only one line of comment text -to add, you can provide it on the command line with -comment. The comment -text must be surrounded with quotes so that it is treated as a single -argument. Longer comments can be read from a text file. - -If you give neither -comment nor -cfile, then wrjpgcom will read the comment -text from standard input. (In this case an input image file name MUST be -supplied, so that the source JPEG file comes from somewhere else.) You can -enter multiple lines, up to 64KB worth. Type an end-of-file indicator -(usually control-D or control-Z) to terminate the comment text entry. - -wrjpgcom will not add a COM block if the provided comment string is empty. -Therefore -replace -comment "" can be used to delete all COM blocks from a -file. - -These utility programs do not depend on the IJG JPEG library. In -particular, the source code for rdjpgcom is intended as an illustration of -the minimum amount of code required to parse a JPEG file header correctly. diff --git a/jpg/wizard.txt b/jpg/wizard.txt deleted file mode 100644 index 54170b2..0000000 --- a/jpg/wizard.txt +++ /dev/null @@ -1,211 +0,0 @@ -Advanced usage instructions for the Independent JPEG Group's JPEG software -========================================================================== - -This file describes cjpeg's "switches for wizards". - -The "wizard" switches are intended for experimentation with JPEG by persons -who are reasonably knowledgeable about the JPEG standard. If you don't know -what you are doing, DON'T USE THESE SWITCHES. You'll likely produce files -with worse image quality and/or poorer compression than you'd get from the -default settings. Furthermore, these switches must be used with caution -when making files intended for general use, because not all JPEG decoders -will support unusual JPEG parameter settings. - - -Quantization Table Adjustment ------------------------------ - -Ordinarily, cjpeg starts with a default set of tables (the same ones given -as examples in the JPEG standard) and scales them up or down according to -the -quality setting. The details of the scaling algorithm can be found in -jcparam.c. At very low quality settings, some quantization table entries -can get scaled up to values exceeding 255. Although 2-byte quantization -values are supported by the IJG software, this feature is not in baseline -JPEG and is not supported by all implementations. If you need to ensure -wide compatibility of low-quality files, you can constrain the scaled -quantization values to no more than 255 by giving the -baseline switch. -Note that use of -baseline will result in poorer quality for the same file -size, since more bits than necessary are expended on higher AC coefficients. - -You can substitute a different set of quantization values by using the --qtables switch: - - -qtables file Use the quantization tables given in the named file. - -The specified file should be a text file containing decimal quantization -values. The file should contain one to four tables, each of 64 elements. -The tables are implicitly numbered 0,1,etc. in order of appearance. Table -entries appear in normal array order (NOT in the zigzag order in which they -will be stored in the JPEG file). - -Quantization table files are free format, in that arbitrary whitespace can -appear between numbers. Also, comments can be included: a comment starts -with '#' and extends to the end of the line. Here is an example file that -duplicates the default quantization tables: - - # Quantization tables given in JPEG spec, section K.1 - - # This is table 0 (the luminance table): - 16 11 10 16 24 40 51 61 - 12 12 14 19 26 58 60 55 - 14 13 16 24 40 57 69 56 - 14 17 22 29 51 87 80 62 - 18 22 37 56 68 109 103 77 - 24 35 55 64 81 104 113 92 - 49 64 78 87 103 121 120 101 - 72 92 95 98 112 100 103 99 - - # This is table 1 (the chrominance table): - 17 18 24 47 99 99 99 99 - 18 21 26 66 99 99 99 99 - 24 26 56 99 99 99 99 99 - 47 66 99 99 99 99 99 99 - 99 99 99 99 99 99 99 99 - 99 99 99 99 99 99 99 99 - 99 99 99 99 99 99 99 99 - 99 99 99 99 99 99 99 99 - -If the -qtables switch is used without -quality, then the specified tables -are used exactly as-is. If both -qtables and -quality are used, then the -tables taken from the file are scaled in the same fashion that the default -tables would be scaled for that quality setting. If -baseline appears, then -the quantization values are constrained to the range 1-255. - -By default, cjpeg will use quantization table 0 for luminance components and -table 1 for chrominance components. To override this choice, use the -qslots -switch: - - -qslots N[,...] Select which quantization table to use for - each color component. - -The -qslots switch specifies a quantization table number for each color -component, in the order in which the components appear in the JPEG SOF marker. -For example, to create a separate table for each of Y,Cb,Cr, you could -provide a -qtables file that defines three quantization tables and say -"-qslots 0,1,2". If -qslots gives fewer table numbers than there are color -components, then the last table number is repeated as necessary. - - -Sampling Factor Adjustment --------------------------- - -By default, cjpeg uses 2:1 horizontal and vertical downsampling when -compressing YCbCr data, and no downsampling for all other color spaces. -You can override this default with the -sample switch: - - -sample HxV[,...] Set JPEG sampling factors for each color - component. - -The -sample switch specifies the JPEG sampling factors for each color -component, in the order in which they appear in the JPEG SOF marker. -If you specify fewer HxV pairs than there are components, the remaining -components are set to 1x1 sampling. For example, the default YCbCr setting -is equivalent to "-sample 2x2,1x1,1x1", which can be abbreviated to -"-sample 2x2". - -There are still some JPEG decoders in existence that support only 2x1 -sampling (also called 4:2:2 sampling). Compatibility with such decoders can -be achieved by specifying "-sample 2x1". This is not recommended unless -really necessary, since it increases file size and encoding/decoding time -with very little quality gain. - - -Multiple Scan / Progression Control ------------------------------------ - -By default, cjpeg emits a single-scan sequential JPEG file. The --progressive switch generates a progressive JPEG file using a default series -of progression parameters. You can create multiple-scan sequential JPEG -files or progressive JPEG files with custom progression parameters by using -the -scans switch: - - -scans file Use the scan sequence given in the named file. - -The specified file should be a text file containing a "scan script". -The script specifies the contents and ordering of the scans to be emitted. -Each entry in the script defines one scan. A scan definition specifies -the components to be included in the scan, and for progressive JPEG it also -specifies the progression parameters Ss,Se,Ah,Al for the scan. Scan -definitions are separated by semicolons (';'). A semicolon after the last -scan definition is optional. - -Each scan definition contains one to four component indexes, optionally -followed by a colon (':') and the four progressive-JPEG parameters. The -component indexes denote which color component(s) are to be transmitted in -the scan. Components are numbered in the order in which they appear in the -JPEG SOF marker, with the first component being numbered 0. (Note that these -indexes are not the "component ID" codes assigned to the components, just -positional indexes.) - -The progression parameters for each scan are: - Ss Zigzag index of first coefficient included in scan - Se Zigzag index of last coefficient included in scan - Ah Zero for first scan of a coefficient, else Al of prior scan - Al Successive approximation low bit position for scan -If the progression parameters are omitted, the values 0,63,0,0 are used, -producing a sequential JPEG file. cjpeg automatically determines whether -the script represents a progressive or sequential file, by observing whether -Ss and Se values other than 0 and 63 appear. (The -progressive switch is -not needed to specify this; in fact, it is ignored when -scans appears.) -The scan script must meet the JPEG restrictions on progression sequences. -(cjpeg checks that the spec's requirements are obeyed.) - -Scan script files are free format, in that arbitrary whitespace can appear -between numbers and around punctuation. Also, comments can be included: a -comment starts with '#' and extends to the end of the line. For additional -legibility, commas or dashes can be placed between values. (Actually, any -single punctuation character other than ':' or ';' can be inserted.) For -example, the following two scan definitions are equivalent: - 0 1 2: 0 63 0 0; - 0,1,2 : 0-63, 0,0 ; - -Here is an example of a scan script that generates a partially interleaved -sequential JPEG file: - - 0; # Y only in first scan - 1 2; # Cb and Cr in second scan - -Here is an example of a progressive scan script using only spectral selection -(no successive approximation): - - # Interleaved DC scan for Y,Cb,Cr: - 0,1,2: 0-0, 0, 0 ; - # AC scans: - 0: 1-2, 0, 0 ; # First two Y AC coefficients - 0: 3-5, 0, 0 ; # Three more - 1: 1-63, 0, 0 ; # All AC coefficients for Cb - 2: 1-63, 0, 0 ; # All AC coefficients for Cr - 0: 6-9, 0, 0 ; # More Y coefficients - 0: 10-63, 0, 0 ; # Remaining Y coefficients - -Here is an example of a successive-approximation script. This is equivalent -to the default script used by "cjpeg -progressive" for YCbCr images: - - # Initial DC scan for Y,Cb,Cr (lowest bit not sent) - 0,1,2: 0-0, 0, 1 ; - # First AC scan: send first 5 Y AC coefficients, minus 2 lowest bits: - 0: 1-5, 0, 2 ; - # Send all Cr,Cb AC coefficients, minus lowest bit: - # (chroma data is usually too small to be worth subdividing further; - # but note we send Cr first since eye is least sensitive to Cb) - 2: 1-63, 0, 1 ; - 1: 1-63, 0, 1 ; - # Send remaining Y AC coefficients, minus 2 lowest bits: - 0: 6-63, 0, 2 ; - # Send next-to-lowest bit of all Y AC coefficients: - 0: 1-63, 2, 1 ; - # At this point we've sent all but the lowest bit of all coefficients. - # Send lowest bit of DC coefficients - 0,1,2: 0-0, 1, 0 ; - # Send lowest bit of AC coefficients - 2: 1-63, 1, 0 ; - 1: 1-63, 1, 0 ; - # Y AC lowest bit scan is last; it's usually the largest scan - 0: 1-63, 1, 0 ; - -It may be worth pointing out that this script is tuned for quality settings -of around 50 to 75. For lower quality settings, you'd probably want to use -a script with fewer stages of successive approximation (otherwise the -initial scans will be really bad). For higher quality settings, you might -want to use more stages of successive approximation (so that the initial -scans are not too large). diff --git a/jpg/wrbmp.c b/jpg/wrbmp.c deleted file mode 100644 index 3283b0f..0000000 --- a/jpg/wrbmp.c +++ /dev/null @@ -1,442 +0,0 @@ -/* - * wrbmp.c - * - * Copyright (C) 1994-1996, Thomas G. Lane. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file contains routines to write output images in Microsoft "BMP" - * format (MS Windows 3.x and OS/2 1.x flavors). - * Either 8-bit colormapped or 24-bit full-color format can be written. - * No compression is supported. - * - * These routines may need modification for non-Unix environments or - * specialized applications. As they stand, they assume output to - * an ordinary stdio stream. - * - * This code contributed by James Arthur Boucher. - */ - -#include "cdjpeg.h" /* Common decls for cjpeg/djpeg applications */ - -#ifdef BMP_SUPPORTED - - -/* - * To support 12-bit JPEG data, we'd have to scale output down to 8 bits. - * This is not yet implemented. - */ - -#if BITS_IN_JSAMPLE != 8 - Sorry, this code only copes with 8-bit JSAMPLEs. /* deliberate syntax err */ -#endif - -/* - * Since BMP stores scanlines bottom-to-top, we have to invert the image - * from JPEG's top-to-bottom order. To do this, we save the outgoing data - * in a virtual array during put_pixel_row calls, then actually emit the - * BMP file during finish_output. The virtual array contains one JSAMPLE per - * pixel if the output is grayscale or colormapped, three if it is full color. - */ - -/* Private version of data destination object */ - -typedef struct { - struct djpeg_dest_struct pub; /* public fields */ - - boolean is_os2; /* saves the OS2 format request flag */ - - jvirt_sarray_ptr whole_image; /* needed to reverse row order */ - JDIMENSION data_width; /* JSAMPLEs per row */ - JDIMENSION row_width; /* physical width of one row in the BMP file */ - int pad_bytes; /* number of padding bytes needed per row */ - JDIMENSION cur_output_row; /* next row# to write to virtual array */ -} bmp_dest_struct; - -typedef bmp_dest_struct * bmp_dest_ptr; - - -/* Forward declarations */ -LOCAL(void) write_colormap - JPP((j_decompress_ptr cinfo, bmp_dest_ptr dest, - int map_colors, int map_entry_size)); - - -/* - * Write some pixel data. - * In this module rows_supplied will always be 1. - */ - -METHODDEF(void) -put_pixel_rows (j_decompress_ptr cinfo, djpeg_dest_ptr dinfo, - JDIMENSION rows_supplied) -/* This version is for writing 24-bit pixels */ -{ - bmp_dest_ptr dest = (bmp_dest_ptr) dinfo; - JSAMPARRAY image_ptr; - register JSAMPROW inptr, outptr; - register JDIMENSION col; - int pad; - - /* Access next row in virtual array */ - image_ptr = (*cinfo->mem->access_virt_sarray) - ((j_common_ptr) cinfo, dest->whole_image, - dest->cur_output_row, (JDIMENSION) 1, TRUE); - dest->cur_output_row++; - - /* Transfer data. Note destination values must be in BGR order - * (even though Microsoft's own documents say the opposite). - */ - inptr = dest->pub.buffer[0]; - outptr = image_ptr[0]; - for (col = cinfo->output_width; col > 0; col--) { - outptr[2] = *inptr++; /* can omit GETJSAMPLE() safely */ - outptr[1] = *inptr++; - outptr[0] = *inptr++; - outptr += 3; - } - - /* Zero out the pad bytes. */ - pad = dest->pad_bytes; - while (--pad >= 0) - *outptr++ = 0; -} - -METHODDEF(void) -put_gray_rows (j_decompress_ptr cinfo, djpeg_dest_ptr dinfo, - JDIMENSION rows_supplied) -/* This version is for grayscale OR quantized color output */ -{ - bmp_dest_ptr dest = (bmp_dest_ptr) dinfo; - JSAMPARRAY image_ptr; - register JSAMPROW inptr, outptr; - register JDIMENSION col; - int pad; - - /* Access next row in virtual array */ - image_ptr = (*cinfo->mem->access_virt_sarray) - ((j_common_ptr) cinfo, dest->whole_image, - dest->cur_output_row, (JDIMENSION) 1, TRUE); - dest->cur_output_row++; - - /* Transfer data. */ - inptr = dest->pub.buffer[0]; - outptr = image_ptr[0]; - for (col = cinfo->output_width; col > 0; col--) { - *outptr++ = *inptr++; /* can omit GETJSAMPLE() safely */ - } - - /* Zero out the pad bytes. */ - pad = dest->pad_bytes; - while (--pad >= 0) - *outptr++ = 0; -} - - -/* - * Startup: normally writes the file header. - * In this module we may as well postpone everything until finish_output. - */ - -METHODDEF(void) -start_output_bmp (j_decompress_ptr cinfo, djpeg_dest_ptr dinfo) -{ - /* no work here */ -} - - -/* - * Finish up at the end of the file. - * - * Here is where we really output the BMP file. - * - * First, routines to write the Windows and OS/2 variants of the file header. - */ - -LOCAL(void) -write_bmp_header (j_decompress_ptr cinfo, bmp_dest_ptr dest) -/* Write a Windows-style BMP file header, including colormap if needed */ -{ - char bmpfileheader[14]; - char bmpinfoheader[40]; -#define PUT_2B(array,offset,value) \ - (array[offset] = (char) ((value) & 0xFF), \ - array[offset+1] = (char) (((value) >> 8) & 0xFF)) -#define PUT_4B(array,offset,value) \ - (array[offset] = (char) ((value) & 0xFF), \ - array[offset+1] = (char) (((value) >> 8) & 0xFF), \ - array[offset+2] = (char) (((value) >> 16) & 0xFF), \ - array[offset+3] = (char) (((value) >> 24) & 0xFF)) - INT32 headersize, bfSize; - int bits_per_pixel, cmap_entries; - - /* Compute colormap size and total file size */ - if (cinfo->out_color_space == JCS_RGB) { - if (cinfo->quantize_colors) { - /* Colormapped RGB */ - bits_per_pixel = 8; - cmap_entries = 256; - } else { - /* Unquantized, full color RGB */ - bits_per_pixel = 24; - cmap_entries = 0; - } - } else { - /* Grayscale output. We need to fake a 256-entry colormap. */ - bits_per_pixel = 8; - cmap_entries = 256; - } - /* File size */ - headersize = 14 + 40 + cmap_entries * 4; /* Header and colormap */ - bfSize = headersize + (INT32) dest->row_width * (INT32) cinfo->output_height; - - /* Set unused fields of header to 0 */ - MEMZERO(bmpfileheader, SIZEOF(bmpfileheader)); - MEMZERO(bmpinfoheader, SIZEOF(bmpinfoheader)); - - /* Fill the file header */ - bmpfileheader[0] = 0x42; /* first 2 bytes are ASCII 'B', 'M' */ - bmpfileheader[1] = 0x4D; - PUT_4B(bmpfileheader, 2, bfSize); /* bfSize */ - /* we leave bfReserved1 & bfReserved2 = 0 */ - PUT_4B(bmpfileheader, 10, headersize); /* bfOffBits */ - - /* Fill the info header (Microsoft calls this a BITMAPINFOHEADER) */ - PUT_2B(bmpinfoheader, 0, 40); /* biSize */ - PUT_4B(bmpinfoheader, 4, cinfo->output_width); /* biWidth */ - PUT_4B(bmpinfoheader, 8, cinfo->output_height); /* biHeight */ - PUT_2B(bmpinfoheader, 12, 1); /* biPlanes - must be 1 */ - PUT_2B(bmpinfoheader, 14, bits_per_pixel); /* biBitCount */ - /* we leave biCompression = 0, for none */ - /* we leave biSizeImage = 0; this is correct for uncompressed data */ - if (cinfo->density_unit == 2) { /* if have density in dots/cm, then */ - PUT_4B(bmpinfoheader, 24, (INT32) (cinfo->X_density*100)); /* XPels/M */ - PUT_4B(bmpinfoheader, 28, (INT32) (cinfo->Y_density*100)); /* XPels/M */ - } - PUT_2B(bmpinfoheader, 32, cmap_entries); /* biClrUsed */ - /* we leave biClrImportant = 0 */ - - if (JFWRITE(dest->pub.output_file, bmpfileheader, 14) != (size_t) 14) - ERREXIT(cinfo, JERR_FILE_WRITE); - if (JFWRITE(dest->pub.output_file, bmpinfoheader, 40) != (size_t) 40) - ERREXIT(cinfo, JERR_FILE_WRITE); - - if (cmap_entries > 0) - write_colormap(cinfo, dest, cmap_entries, 4); -} - - -LOCAL(void) -write_os2_header (j_decompress_ptr cinfo, bmp_dest_ptr dest) -/* Write an OS2-style BMP file header, including colormap if needed */ -{ - char bmpfileheader[14]; - char bmpcoreheader[12]; - INT32 headersize, bfSize; - int bits_per_pixel, cmap_entries; - - /* Compute colormap size and total file size */ - if (cinfo->out_color_space == JCS_RGB) { - if (cinfo->quantize_colors) { - /* Colormapped RGB */ - bits_per_pixel = 8; - cmap_entries = 256; - } else { - /* Unquantized, full color RGB */ - bits_per_pixel = 24; - cmap_entries = 0; - } - } else { - /* Grayscale output. We need to fake a 256-entry colormap. */ - bits_per_pixel = 8; - cmap_entries = 256; - } - /* File size */ - headersize = 14 + 12 + cmap_entries * 3; /* Header and colormap */ - bfSize = headersize + (INT32) dest->row_width * (INT32) cinfo->output_height; - - /* Set unused fields of header to 0 */ - MEMZERO(bmpfileheader, SIZEOF(bmpfileheader)); - MEMZERO(bmpcoreheader, SIZEOF(bmpcoreheader)); - - /* Fill the file header */ - bmpfileheader[0] = 0x42; /* first 2 bytes are ASCII 'B', 'M' */ - bmpfileheader[1] = 0x4D; - PUT_4B(bmpfileheader, 2, bfSize); /* bfSize */ - /* we leave bfReserved1 & bfReserved2 = 0 */ - PUT_4B(bmpfileheader, 10, headersize); /* bfOffBits */ - - /* Fill the info header (Microsoft calls this a BITMAPCOREHEADER) */ - PUT_2B(bmpcoreheader, 0, 12); /* bcSize */ - PUT_2B(bmpcoreheader, 4, cinfo->output_width); /* bcWidth */ - PUT_2B(bmpcoreheader, 6, cinfo->output_height); /* bcHeight */ - PUT_2B(bmpcoreheader, 8, 1); /* bcPlanes - must be 1 */ - PUT_2B(bmpcoreheader, 10, bits_per_pixel); /* bcBitCount */ - - if (JFWRITE(dest->pub.output_file, bmpfileheader, 14) != (size_t) 14) - ERREXIT(cinfo, JERR_FILE_WRITE); - if (JFWRITE(dest->pub.output_file, bmpcoreheader, 12) != (size_t) 12) - ERREXIT(cinfo, JERR_FILE_WRITE); - - if (cmap_entries > 0) - write_colormap(cinfo, dest, cmap_entries, 3); -} - - -/* - * Write the colormap. - * Windows uses BGR0 map entries; OS/2 uses BGR entries. - */ - -LOCAL(void) -write_colormap (j_decompress_ptr cinfo, bmp_dest_ptr dest, - int map_colors, int map_entry_size) -{ - JSAMPARRAY colormap = cinfo->colormap; - int num_colors = cinfo->actual_number_of_colors; - FILE * outfile = dest->pub.output_file; - int i; - - if (colormap != NULL) { - if (cinfo->out_color_components == 3) { - /* Normal case with RGB colormap */ - for (i = 0; i < num_colors; i++) { - putc(GETJSAMPLE(colormap[2][i]), outfile); - putc(GETJSAMPLE(colormap[1][i]), outfile); - putc(GETJSAMPLE(colormap[0][i]), outfile); - if (map_entry_size == 4) - putc(0, outfile); - } - } else { - /* Grayscale colormap (only happens with grayscale quantization) */ - for (i = 0; i < num_colors; i++) { - putc(GETJSAMPLE(colormap[0][i]), outfile); - putc(GETJSAMPLE(colormap[0][i]), outfile); - putc(GETJSAMPLE(colormap[0][i]), outfile); - if (map_entry_size == 4) - putc(0, outfile); - } - } - } else { - /* If no colormap, must be grayscale data. Generate a linear "map". */ - for (i = 0; i < 256; i++) { - putc(i, outfile); - putc(i, outfile); - putc(i, outfile); - if (map_entry_size == 4) - putc(0, outfile); - } - } - /* Pad colormap with zeros to ensure specified number of colormap entries */ - if (i > map_colors) - ERREXIT1(cinfo, JERR_TOO_MANY_COLORS, i); - for (; i < map_colors; i++) { - putc(0, outfile); - putc(0, outfile); - putc(0, outfile); - if (map_entry_size == 4) - putc(0, outfile); - } -} - - -METHODDEF(void) -finish_output_bmp (j_decompress_ptr cinfo, djpeg_dest_ptr dinfo) -{ - bmp_dest_ptr dest = (bmp_dest_ptr) dinfo; - register FILE * outfile = dest->pub.output_file; - JSAMPARRAY image_ptr; - register JSAMPROW data_ptr; - JDIMENSION row; - register JDIMENSION col; - cd_progress_ptr progress = (cd_progress_ptr) cinfo->progress; - - /* Write the header and colormap */ - if (dest->is_os2) - write_os2_header(cinfo, dest); - else - write_bmp_header(cinfo, dest); - - /* Write the file body from our virtual array */ - for (row = cinfo->output_height; row > 0; row--) { - if (progress != NULL) { - progress->pub.pass_counter = (long) (cinfo->output_height - row); - progress->pub.pass_limit = (long) cinfo->output_height; - (*progress->pub.progress_monitor) ((j_common_ptr) cinfo); - } - image_ptr = (*cinfo->mem->access_virt_sarray) - ((j_common_ptr) cinfo, dest->whole_image, row-1, (JDIMENSION) 1, FALSE); - data_ptr = image_ptr[0]; - for (col = dest->row_width; col > 0; col--) { - putc(GETJSAMPLE(*data_ptr), outfile); - data_ptr++; - } - } - if (progress != NULL) - progress->completed_extra_passes++; - - /* Make sure we wrote the output file OK */ - fflush(outfile); - if (ferror(outfile)) - ERREXIT(cinfo, JERR_FILE_WRITE); -} - - -/* - * The module selection routine for BMP format output. - */ - -GLOBAL(djpeg_dest_ptr) -jinit_write_bmp (j_decompress_ptr cinfo, boolean is_os2) -{ - bmp_dest_ptr dest; - JDIMENSION row_width; - - /* Create module interface object, fill in method pointers */ - dest = (bmp_dest_ptr) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - SIZEOF(bmp_dest_struct)); - dest->pub.start_output = start_output_bmp; - dest->pub.finish_output = finish_output_bmp; - dest->is_os2 = is_os2; - - if (cinfo->out_color_space == JCS_GRAYSCALE) { - dest->pub.put_pixel_rows = put_gray_rows; - } else if (cinfo->out_color_space == JCS_RGB) { - if (cinfo->quantize_colors) - dest->pub.put_pixel_rows = put_gray_rows; - else - dest->pub.put_pixel_rows = put_pixel_rows; - } else { - ERREXIT(cinfo, JERR_BMP_COLORSPACE); - } - - /* Calculate output image dimensions so we can allocate space */ - jpeg_calc_output_dimensions(cinfo); - - /* Determine width of rows in the BMP file (padded to 4-byte boundary). */ - row_width = cinfo->output_width * cinfo->output_components; - dest->data_width = row_width; - while ((row_width & 3) != 0) row_width++; - dest->row_width = row_width; - dest->pad_bytes = (int) (row_width - dest->data_width); - - /* Allocate space for inversion array, prepare for write pass */ - dest->whole_image = (*cinfo->mem->request_virt_sarray) - ((j_common_ptr) cinfo, JPOOL_IMAGE, FALSE, - row_width, cinfo->output_height, (JDIMENSION) 1); - dest->cur_output_row = 0; - if (cinfo->progress != NULL) { - cd_progress_ptr progress = (cd_progress_ptr) cinfo->progress; - progress->total_extra_passes++; /* count file input as separate pass */ - } - - /* Create decompressor output buffer. */ - dest->pub.buffer = (*cinfo->mem->alloc_sarray) - ((j_common_ptr) cinfo, JPOOL_IMAGE, row_width, (JDIMENSION) 1); - dest->pub.buffer_height = 1; - - return (djpeg_dest_ptr) dest; -} - -#endif /* BMP_SUPPORTED */ diff --git a/jpg/wrgif.c b/jpg/wrgif.c deleted file mode 100644 index 5fe8328..0000000 --- a/jpg/wrgif.c +++ /dev/null @@ -1,399 +0,0 @@ -/* - * wrgif.c - * - * Copyright (C) 1991-1997, Thomas G. Lane. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file contains routines to write output images in GIF format. - * - ************************************************************************** - * NOTE: to avoid entanglements with Unisys' patent on LZW compression, * - * this code has been modified to output "uncompressed GIF" files. * - * There is no trace of the LZW algorithm in this file. * - ************************************************************************** - * - * These routines may need modification for non-Unix environments or - * specialized applications. As they stand, they assume output to - * an ordinary stdio stream. - */ - -/* - * This code is loosely based on ppmtogif from the PBMPLUS distribution - * of Feb. 1991. That file contains the following copyright notice: - * Based on GIFENCODE by David Rowley . - * Lempel-Ziv compression based on "compress" by Spencer W. Thomas et al. - * Copyright (C) 1989 by Jef Poskanzer. - * Permission to use, copy, modify, and distribute this software and its - * documentation for any purpose and without fee is hereby granted, provided - * that the above copyright notice appear in all copies and that both that - * copyright notice and this permission notice appear in supporting - * documentation. This software is provided "as is" without express or - * implied warranty. - * - * We are also required to state that - * "The Graphics Interchange Format(c) is the Copyright property of - * CompuServe Incorporated. GIF(sm) is a Service Mark property of - * CompuServe Incorporated." - */ - -#include "cdjpeg.h" /* Common decls for cjpeg/djpeg applications */ - -#ifdef GIF_SUPPORTED - - -/* Private version of data destination object */ - -typedef struct { - struct djpeg_dest_struct pub; /* public fields */ - - j_decompress_ptr cinfo; /* back link saves passing separate parm */ - - /* State for packing variable-width codes into a bitstream */ - int n_bits; /* current number of bits/code */ - int maxcode; /* maximum code, given n_bits */ - INT32 cur_accum; /* holds bits not yet output */ - int cur_bits; /* # of bits in cur_accum */ - - /* State for GIF code assignment */ - int ClearCode; /* clear code (doesn't change) */ - int EOFCode; /* EOF code (ditto) */ - int code_counter; /* counts output symbols */ - - /* GIF data packet construction buffer */ - int bytesinpkt; /* # of bytes in current packet */ - char packetbuf[256]; /* workspace for accumulating packet */ - -} gif_dest_struct; - -typedef gif_dest_struct * gif_dest_ptr; - -/* Largest value that will fit in N bits */ -#define MAXCODE(n_bits) ((1 << (n_bits)) - 1) - - -/* - * Routines to package finished data bytes into GIF data blocks. - * A data block consists of a count byte (1..255) and that many data bytes. - */ - -LOCAL(void) -flush_packet (gif_dest_ptr dinfo) -/* flush any accumulated data */ -{ - if (dinfo->bytesinpkt > 0) { /* never write zero-length packet */ - dinfo->packetbuf[0] = (char) dinfo->bytesinpkt++; - if (JFWRITE(dinfo->pub.output_file, dinfo->packetbuf, dinfo->bytesinpkt) - != (size_t) dinfo->bytesinpkt) - ERREXIT(dinfo->cinfo, JERR_FILE_WRITE); - dinfo->bytesinpkt = 0; - } -} - - -/* Add a character to current packet; flush to disk if necessary */ -#define CHAR_OUT(dinfo,c) \ - { (dinfo)->packetbuf[++(dinfo)->bytesinpkt] = (char) (c); \ - if ((dinfo)->bytesinpkt >= 255) \ - flush_packet(dinfo); \ - } - - -/* Routine to convert variable-width codes into a byte stream */ - -LOCAL(void) -output (gif_dest_ptr dinfo, int code) -/* Emit a code of n_bits bits */ -/* Uses cur_accum and cur_bits to reblock into 8-bit bytes */ -{ - dinfo->cur_accum |= ((INT32) code) << dinfo->cur_bits; - dinfo->cur_bits += dinfo->n_bits; - - while (dinfo->cur_bits >= 8) { - CHAR_OUT(dinfo, dinfo->cur_accum & 0xFF); - dinfo->cur_accum >>= 8; - dinfo->cur_bits -= 8; - } -} - - -/* The pseudo-compression algorithm. - * - * In this module we simply output each pixel value as a separate symbol; - * thus, no compression occurs. In fact, there is expansion of one bit per - * pixel, because we use a symbol width one bit wider than the pixel width. - * - * GIF ordinarily uses variable-width symbols, and the decoder will expect - * to ratchet up the symbol width after a fixed number of symbols. - * To simplify the logic and keep the expansion penalty down, we emit a - * GIF Clear code to reset the decoder just before the width would ratchet up. - * Thus, all the symbols in the output file will have the same bit width. - * Note that emitting the Clear codes at the right times is a mere matter of - * counting output symbols and is in no way dependent on the LZW patent. - * - * With a small basic pixel width (low color count), Clear codes will be - * needed very frequently, causing the file to expand even more. So this - * simplistic approach wouldn't work too well on bilevel images, for example. - * But for output of JPEG conversions the pixel width will usually be 8 bits - * (129 to 256 colors), so the overhead added by Clear symbols is only about - * one symbol in every 256. - */ - -LOCAL(void) -compress_init (gif_dest_ptr dinfo, int i_bits) -/* Initialize pseudo-compressor */ -{ - /* init all the state variables */ - dinfo->n_bits = i_bits; - dinfo->maxcode = MAXCODE(dinfo->n_bits); - dinfo->ClearCode = (1 << (i_bits - 1)); - dinfo->EOFCode = dinfo->ClearCode + 1; - dinfo->code_counter = dinfo->ClearCode + 2; - /* init output buffering vars */ - dinfo->bytesinpkt = 0; - dinfo->cur_accum = 0; - dinfo->cur_bits = 0; - /* GIF specifies an initial Clear code */ - output(dinfo, dinfo->ClearCode); -} - - -LOCAL(void) -compress_pixel (gif_dest_ptr dinfo, int c) -/* Accept and "compress" one pixel value. - * The given value must be less than n_bits wide. - */ -{ - /* Output the given pixel value as a symbol. */ - output(dinfo, c); - /* Issue Clear codes often enough to keep the reader from ratcheting up - * its symbol size. - */ - if (dinfo->code_counter < dinfo->maxcode) { - dinfo->code_counter++; - } else { - output(dinfo, dinfo->ClearCode); - dinfo->code_counter = dinfo->ClearCode + 2; /* reset the counter */ - } -} - - -LOCAL(void) -compress_term (gif_dest_ptr dinfo) -/* Clean up at end */ -{ - /* Send an EOF code */ - output(dinfo, dinfo->EOFCode); - /* Flush the bit-packing buffer */ - if (dinfo->cur_bits > 0) { - CHAR_OUT(dinfo, dinfo->cur_accum & 0xFF); - } - /* Flush the packet buffer */ - flush_packet(dinfo); -} - - -/* GIF header construction */ - - -LOCAL(void) -put_word (gif_dest_ptr dinfo, unsigned int w) -/* Emit a 16-bit word, LSB first */ -{ - putc(w & 0xFF, dinfo->pub.output_file); - putc((w >> 8) & 0xFF, dinfo->pub.output_file); -} - - -LOCAL(void) -put_3bytes (gif_dest_ptr dinfo, int val) -/* Emit 3 copies of same byte value --- handy subr for colormap construction */ -{ - putc(val, dinfo->pub.output_file); - putc(val, dinfo->pub.output_file); - putc(val, dinfo->pub.output_file); -} - - -LOCAL(void) -emit_header (gif_dest_ptr dinfo, int num_colors, JSAMPARRAY colormap) -/* Output the GIF file header, including color map */ -/* If colormap==NULL, synthesize a gray-scale colormap */ -{ - int BitsPerPixel, ColorMapSize, InitCodeSize, FlagByte; - int cshift = dinfo->cinfo->data_precision - 8; - int i; - - if (num_colors > 256) - ERREXIT1(dinfo->cinfo, JERR_TOO_MANY_COLORS, num_colors); - /* Compute bits/pixel and related values */ - BitsPerPixel = 1; - while (num_colors > (1 << BitsPerPixel)) - BitsPerPixel++; - ColorMapSize = 1 << BitsPerPixel; - if (BitsPerPixel <= 1) - InitCodeSize = 2; - else - InitCodeSize = BitsPerPixel; - /* - * Write the GIF header. - * Note that we generate a plain GIF87 header for maximum compatibility. - */ - putc('G', dinfo->pub.output_file); - putc('I', dinfo->pub.output_file); - putc('F', dinfo->pub.output_file); - putc('8', dinfo->pub.output_file); - putc('7', dinfo->pub.output_file); - putc('a', dinfo->pub.output_file); - /* Write the Logical Screen Descriptor */ - put_word(dinfo, (unsigned int) dinfo->cinfo->output_width); - put_word(dinfo, (unsigned int) dinfo->cinfo->output_height); - FlagByte = 0x80; /* Yes, there is a global color table */ - FlagByte |= (BitsPerPixel-1) << 4; /* color resolution */ - FlagByte |= (BitsPerPixel-1); /* size of global color table */ - putc(FlagByte, dinfo->pub.output_file); - putc(0, dinfo->pub.output_file); /* Background color index */ - putc(0, dinfo->pub.output_file); /* Reserved (aspect ratio in GIF89) */ - /* Write the Global Color Map */ - /* If the color map is more than 8 bits precision, */ - /* we reduce it to 8 bits by shifting */ - for (i=0; i < ColorMapSize; i++) { - if (i < num_colors) { - if (colormap != NULL) { - if (dinfo->cinfo->out_color_space == JCS_RGB) { - /* Normal case: RGB color map */ - putc(GETJSAMPLE(colormap[0][i]) >> cshift, dinfo->pub.output_file); - putc(GETJSAMPLE(colormap[1][i]) >> cshift, dinfo->pub.output_file); - putc(GETJSAMPLE(colormap[2][i]) >> cshift, dinfo->pub.output_file); - } else { - /* Grayscale "color map": possible if quantizing grayscale image */ - put_3bytes(dinfo, GETJSAMPLE(colormap[0][i]) >> cshift); - } - } else { - /* Create a gray-scale map of num_colors values, range 0..255 */ - put_3bytes(dinfo, (i * 255 + (num_colors-1)/2) / (num_colors-1)); - } - } else { - /* fill out the map to a power of 2 */ - put_3bytes(dinfo, 0); - } - } - /* Write image separator and Image Descriptor */ - putc(',', dinfo->pub.output_file); /* separator */ - put_word(dinfo, 0); /* left/top offset */ - put_word(dinfo, 0); - put_word(dinfo, (unsigned int) dinfo->cinfo->output_width); /* image size */ - put_word(dinfo, (unsigned int) dinfo->cinfo->output_height); - /* flag byte: not interlaced, no local color map */ - putc(0x00, dinfo->pub.output_file); - /* Write Initial Code Size byte */ - putc(InitCodeSize, dinfo->pub.output_file); - - /* Initialize for "compression" of image data */ - compress_init(dinfo, InitCodeSize+1); -} - - -/* - * Startup: write the file header. - */ - -METHODDEF(void) -start_output_gif (j_decompress_ptr cinfo, djpeg_dest_ptr dinfo) -{ - gif_dest_ptr dest = (gif_dest_ptr) dinfo; - - if (cinfo->quantize_colors) - emit_header(dest, cinfo->actual_number_of_colors, cinfo->colormap); - else - emit_header(dest, 256, (JSAMPARRAY) NULL); -} - - -/* - * Write some pixel data. - * In this module rows_supplied will always be 1. - */ - -METHODDEF(void) -put_pixel_rows (j_decompress_ptr cinfo, djpeg_dest_ptr dinfo, - JDIMENSION rows_supplied) -{ - gif_dest_ptr dest = (gif_dest_ptr) dinfo; - register JSAMPROW ptr; - register JDIMENSION col; - - ptr = dest->pub.buffer[0]; - for (col = cinfo->output_width; col > 0; col--) { - compress_pixel(dest, GETJSAMPLE(*ptr++)); - } -} - - -/* - * Finish up at the end of the file. - */ - -METHODDEF(void) -finish_output_gif (j_decompress_ptr cinfo, djpeg_dest_ptr dinfo) -{ - gif_dest_ptr dest = (gif_dest_ptr) dinfo; - - /* Flush "compression" mechanism */ - compress_term(dest); - /* Write a zero-length data block to end the series */ - putc(0, dest->pub.output_file); - /* Write the GIF terminator mark */ - putc(';', dest->pub.output_file); - /* Make sure we wrote the output file OK */ - fflush(dest->pub.output_file); - if (ferror(dest->pub.output_file)) - ERREXIT(cinfo, JERR_FILE_WRITE); -} - - -/* - * The module selection routine for GIF format output. - */ - -GLOBAL(djpeg_dest_ptr) -jinit_write_gif (j_decompress_ptr cinfo) -{ - gif_dest_ptr dest; - - /* Create module interface object, fill in method pointers */ - dest = (gif_dest_ptr) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - SIZEOF(gif_dest_struct)); - dest->cinfo = cinfo; /* make back link for subroutines */ - dest->pub.start_output = start_output_gif; - dest->pub.put_pixel_rows = put_pixel_rows; - dest->pub.finish_output = finish_output_gif; - - if (cinfo->out_color_space != JCS_GRAYSCALE && - cinfo->out_color_space != JCS_RGB) - ERREXIT(cinfo, JERR_GIF_COLORSPACE); - - /* Force quantization if color or if > 8 bits input */ - if (cinfo->out_color_space != JCS_GRAYSCALE || cinfo->data_precision > 8) { - /* Force quantization to at most 256 colors */ - cinfo->quantize_colors = TRUE; - if (cinfo->desired_number_of_colors > 256) - cinfo->desired_number_of_colors = 256; - } - - /* Calculate output image dimensions so we can allocate space */ - jpeg_calc_output_dimensions(cinfo); - - if (cinfo->output_components != 1) /* safety check: just one component? */ - ERREXIT(cinfo, JERR_GIF_BUG); - - /* Create decompressor output buffer. */ - dest->pub.buffer = (*cinfo->mem->alloc_sarray) - ((j_common_ptr) cinfo, JPOOL_IMAGE, cinfo->output_width, (JDIMENSION) 1); - dest->pub.buffer_height = 1; - - return (djpeg_dest_ptr) dest; -} - -#endif /* GIF_SUPPORTED */ diff --git a/jpg/wrjpgcom.1 b/jpg/wrjpgcom.1 deleted file mode 100644 index d419a99..0000000 --- a/jpg/wrjpgcom.1 +++ /dev/null @@ -1,103 +0,0 @@ -.TH WRJPGCOM 1 "15 June 1995" -.SH NAME -wrjpgcom \- insert text comments into a JPEG file -.SH SYNOPSIS -.B wrjpgcom -[ -.B \-replace -] -[ -.BI \-comment " text" -] -[ -.BI \-cfile " name" -] -[ -.I filename -] -.LP -.SH DESCRIPTION -.LP -.B wrjpgcom -reads the named JPEG/JFIF file, or the standard input if no file is named, -and generates a new JPEG/JFIF file on standard output. A comment block is -added to the file. -.PP -The JPEG standard allows "comment" (COM) blocks to occur within a JPEG file. -Although the standard doesn't actually define what COM blocks are for, they -are widely used to hold user-supplied text strings. This lets you add -annotations, titles, index terms, etc to your JPEG files, and later retrieve -them as text. COM blocks do not interfere with the image stored in the JPEG -file. The maximum size of a COM block is 64K, but you can have as many of -them as you like in one JPEG file. -.PP -.B wrjpgcom -adds a COM block, containing text you provide, to a JPEG file. -Ordinarily, the COM block is added after any existing COM blocks; but you -can delete the old COM blocks if you wish. -.SH OPTIONS -Switch names may be abbreviated, and are not case sensitive. -.TP -.B \-replace -Delete any existing COM blocks from the file. -.TP -.BI \-comment " text" -Supply text for new COM block on command line. -.TP -.BI \-cfile " name" -Read text for new COM block from named file. -.PP -If you have only one line of comment text to add, you can provide it on the -command line with -.BR \-comment . -The comment text must be surrounded with quotes so that it is treated as a -single argument. Longer comments can be read from a text file. -.PP -If you give neither -.B \-comment -nor -.BR \-cfile , -then -.B wrjpgcom -will read the comment text from standard input. (In this case an input image -file name MUST be supplied, so that the source JPEG file comes from somewhere -else.) You can enter multiple lines, up to 64KB worth. Type an end-of-file -indicator (usually control-D) to terminate the comment text entry. -.PP -.B wrjpgcom -will not add a COM block if the provided comment string is empty. Therefore -\fB\-replace \-comment ""\fR can be used to delete all COM blocks from a file. -.SH EXAMPLES -.LP -Add a short comment to in.jpg, producing out.jpg: -.IP -.B wrjpgcom \-c -\fI"View of my back yard" in.jpg -.B > -.I out.jpg -.PP -Attach a long comment previously stored in comment.txt: -.IP -.B wrjpgcom -.I in.jpg -.B < -.I comment.txt -.B > -.I out.jpg -.PP -or equivalently -.IP -.B wrjpgcom -.B -cfile -.I comment.txt -.B < -.I in.jpg -.B > -.I out.jpg -.SH SEE ALSO -.BR cjpeg (1), -.BR djpeg (1), -.BR jpegtran (1), -.BR rdjpgcom (1) -.SH AUTHOR -Independent JPEG Group diff --git a/jpg/wrjpgcom.c b/jpg/wrjpgcom.c deleted file mode 100644 index 8c04b05..0000000 --- a/jpg/wrjpgcom.c +++ /dev/null @@ -1,583 +0,0 @@ -/* - * wrjpgcom.c - * - * Copyright (C) 1994-1997, Thomas G. Lane. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file contains a very simple stand-alone application that inserts - * user-supplied text as a COM (comment) marker in a JFIF file. - * This may be useful as an example of the minimum logic needed to parse - * JPEG markers. - */ - -#define JPEG_CJPEG_DJPEG /* to get the command-line config symbols */ -#include "jinclude.h" /* get auto-config symbols, */ - -#ifndef HAVE_STDLIB_H /* should declare malloc() */ -extern void * malloc (); -#endif -#include /* to declare isupper(), tolower() */ -#ifdef USE_SETMODE -#include /* to declare setmode()'s parameter macros */ -/* If you have setmode() but not , just delete this line: */ -#include /* to declare setmode() */ -#endif - -#ifdef USE_CCOMMAND /* command-line reader for Macintosh */ -#ifdef __MWERKS__ -#include /* Metrowerks needs this */ -#include /* ... and this */ -#endif -#ifdef THINK_C -#include /* Think declares it here */ -#endif -#endif - -#ifdef DONT_USE_B_MODE /* define mode parameters for fopen() */ -#define READ_BINARY "r" -#define WRITE_BINARY "w" -#else -#ifdef VMS /* VMS is very nonstandard */ -#define READ_BINARY "rb", "ctx=stm" -#define WRITE_BINARY "wb", "ctx=stm" -#else /* standard ANSI-compliant case */ -#define READ_BINARY "rb" -#define WRITE_BINARY "wb" -#endif -#endif - -#ifndef EXIT_FAILURE /* define exit() codes if not provided */ -#define EXIT_FAILURE 1 -#endif -#ifndef EXIT_SUCCESS -#ifdef VMS -#define EXIT_SUCCESS 1 /* VMS is very nonstandard */ -#else -#define EXIT_SUCCESS 0 -#endif -#endif - -/* Reduce this value if your malloc() can't allocate blocks up to 64K. - * On DOS, compiling in large model is usually a better solution. - */ - -#ifndef MAX_COM_LENGTH -#define MAX_COM_LENGTH 65000L /* must be <= 65533 in any case */ -#endif - - -/* - * These macros are used to read the input file and write the output file. - * To reuse this code in another application, you might need to change these. - */ - -static FILE * infile; /* input JPEG file */ - -/* Return next input byte, or EOF if no more */ -#define NEXTBYTE() getc(infile) - -static FILE * outfile; /* output JPEG file */ - -/* Emit an output byte */ -#define PUTBYTE(x) putc((x), outfile) - - -/* Error exit handler */ -#define ERREXIT(msg) (fprintf(stderr, "%s\n", msg), exit(EXIT_FAILURE)) - - -/* Read one byte, testing for EOF */ -static int -read_1_byte (void) -{ - int c; - - c = NEXTBYTE(); - if (c == EOF) - ERREXIT("Premature EOF in JPEG file"); - return c; -} - -/* Read 2 bytes, convert to unsigned int */ -/* All 2-byte quantities in JPEG markers are MSB first */ -static unsigned int -read_2_bytes (void) -{ - int c1, c2; - - c1 = NEXTBYTE(); - if (c1 == EOF) - ERREXIT("Premature EOF in JPEG file"); - c2 = NEXTBYTE(); - if (c2 == EOF) - ERREXIT("Premature EOF in JPEG file"); - return (((unsigned int) c1) << 8) + ((unsigned int) c2); -} - - -/* Routines to write data to output file */ - -static void -write_1_byte (int c) -{ - PUTBYTE(c); -} - -static void -write_2_bytes (unsigned int val) -{ - PUTBYTE((val >> 8) & 0xFF); - PUTBYTE(val & 0xFF); -} - -static void -write_marker (int marker) -{ - PUTBYTE(0xFF); - PUTBYTE(marker); -} - -static void -copy_rest_of_file (void) -{ - int c; - - while ((c = NEXTBYTE()) != EOF) - PUTBYTE(c); -} - - -/* - * JPEG markers consist of one or more 0xFF bytes, followed by a marker - * code byte (which is not an FF). Here are the marker codes of interest - * in this program. (See jdmarker.c for a more complete list.) - */ - -#define M_SOF0 0xC0 /* Start Of Frame N */ -#define M_SOF1 0xC1 /* N indicates which compression process */ -#define M_SOF2 0xC2 /* Only SOF0-SOF2 are now in common use */ -#define M_SOF3 0xC3 -#define M_SOF5 0xC5 /* NB: codes C4 and CC are NOT SOF markers */ -#define M_SOF6 0xC6 -#define M_SOF7 0xC7 -#define M_SOF9 0xC9 -#define M_SOF10 0xCA -#define M_SOF11 0xCB -#define M_SOF13 0xCD -#define M_SOF14 0xCE -#define M_SOF15 0xCF -#define M_SOI 0xD8 /* Start Of Image (beginning of datastream) */ -#define M_EOI 0xD9 /* End Of Image (end of datastream) */ -#define M_SOS 0xDA /* Start Of Scan (begins compressed data) */ -#define M_COM 0xFE /* COMment */ - - -/* - * Find the next JPEG marker and return its marker code. - * We expect at least one FF byte, possibly more if the compressor used FFs - * to pad the file. (Padding FFs will NOT be replicated in the output file.) - * There could also be non-FF garbage between markers. The treatment of such - * garbage is unspecified; we choose to skip over it but emit a warning msg. - * NB: this routine must not be used after seeing SOS marker, since it will - * not deal correctly with FF/00 sequences in the compressed image data... - */ - -static int -next_marker (void) -{ - int c; - int discarded_bytes = 0; - - /* Find 0xFF byte; count and skip any non-FFs. */ - c = read_1_byte(); - while (c != 0xFF) { - discarded_bytes++; - c = read_1_byte(); - } - /* Get marker code byte, swallowing any duplicate FF bytes. Extra FFs - * are legal as pad bytes, so don't count them in discarded_bytes. - */ - do { - c = read_1_byte(); - } while (c == 0xFF); - - if (discarded_bytes != 0) { - fprintf(stderr, "Warning: garbage data found in JPEG file\n"); - } - - return c; -} - - -/* - * Read the initial marker, which should be SOI. - * For a JFIF file, the first two bytes of the file should be literally - * 0xFF M_SOI. To be more general, we could use next_marker, but if the - * input file weren't actually JPEG at all, next_marker might read the whole - * file and then return a misleading error message... - */ - -static int -first_marker (void) -{ - int c1, c2; - - c1 = NEXTBYTE(); - c2 = NEXTBYTE(); - if (c1 != 0xFF || c2 != M_SOI) - ERREXIT("Not a JPEG file"); - return c2; -} - - -/* - * Most types of marker are followed by a variable-length parameter segment. - * This routine skips over the parameters for any marker we don't otherwise - * want to process. - * Note that we MUST skip the parameter segment explicitly in order not to - * be fooled by 0xFF bytes that might appear within the parameter segment; - * such bytes do NOT introduce new markers. - */ - -static void -copy_variable (void) -/* Copy an unknown or uninteresting variable-length marker */ -{ - unsigned int length; - - /* Get the marker parameter length count */ - length = read_2_bytes(); - write_2_bytes(length); - /* Length includes itself, so must be at least 2 */ - if (length < 2) - ERREXIT("Erroneous JPEG marker length"); - length -= 2; - /* Skip over the remaining bytes */ - while (length > 0) { - write_1_byte(read_1_byte()); - length--; - } -} - -static void -skip_variable (void) -/* Skip over an unknown or uninteresting variable-length marker */ -{ - unsigned int length; - - /* Get the marker parameter length count */ - length = read_2_bytes(); - /* Length includes itself, so must be at least 2 */ - if (length < 2) - ERREXIT("Erroneous JPEG marker length"); - length -= 2; - /* Skip over the remaining bytes */ - while (length > 0) { - (void) read_1_byte(); - length--; - } -} - - -/* - * Parse the marker stream until SOFn or EOI is seen; - * copy data to output, but discard COM markers unless keep_COM is true. - */ - -static int -scan_JPEG_header (int keep_COM) -{ - int marker; - - /* Expect SOI at start of file */ - if (first_marker() != M_SOI) - ERREXIT("Expected SOI marker first"); - write_marker(M_SOI); - - /* Scan miscellaneous markers until we reach SOFn. */ - for (;;) { - marker = next_marker(); - switch (marker) { - /* Note that marker codes 0xC4, 0xC8, 0xCC are not, and must not be, - * treated as SOFn. C4 in particular is actually DHT. - */ - case M_SOF0: /* Baseline */ - case M_SOF1: /* Extended sequential, Huffman */ - case M_SOF2: /* Progressive, Huffman */ - case M_SOF3: /* Lossless, Huffman */ - case M_SOF5: /* Differential sequential, Huffman */ - case M_SOF6: /* Differential progressive, Huffman */ - case M_SOF7: /* Differential lossless, Huffman */ - case M_SOF9: /* Extended sequential, arithmetic */ - case M_SOF10: /* Progressive, arithmetic */ - case M_SOF11: /* Lossless, arithmetic */ - case M_SOF13: /* Differential sequential, arithmetic */ - case M_SOF14: /* Differential progressive, arithmetic */ - case M_SOF15: /* Differential lossless, arithmetic */ - return marker; - - case M_SOS: /* should not see compressed data before SOF */ - ERREXIT("SOS without prior SOFn"); - break; - - case M_EOI: /* in case it's a tables-only JPEG stream */ - return marker; - - case M_COM: /* Existing COM: conditionally discard */ - if (keep_COM) { - write_marker(marker); - copy_variable(); - } else { - skip_variable(); - } - break; - - default: /* Anything else just gets copied */ - write_marker(marker); - copy_variable(); /* we assume it has a parameter count... */ - break; - } - } /* end loop */ -} - - -/* Command line parsing code */ - -static const char * progname; /* program name for error messages */ - - -static void -usage (void) -/* complain about bad command line */ -{ - fprintf(stderr, "wrjpgcom inserts a textual comment in a JPEG file.\n"); - fprintf(stderr, "You can add to or replace any existing comment(s).\n"); - - fprintf(stderr, "Usage: %s [switches] ", progname); -#ifdef TWO_FILE_COMMANDLINE - fprintf(stderr, "inputfile outputfile\n"); -#else - fprintf(stderr, "[inputfile]\n"); -#endif - - fprintf(stderr, "Switches (names may be abbreviated):\n"); - fprintf(stderr, " -replace Delete any existing comments\n"); - fprintf(stderr, " -comment \"text\" Insert comment with given text\n"); - fprintf(stderr, " -cfile name Read comment from named file\n"); - fprintf(stderr, "Notice that you must put quotes around the comment text\n"); - fprintf(stderr, "when you use -comment.\n"); - fprintf(stderr, "If you do not give either -comment or -cfile on the command line,\n"); - fprintf(stderr, "then the comment text is read from standard input.\n"); - fprintf(stderr, "It can be multiple lines, up to %u characters total.\n", - (unsigned int) MAX_COM_LENGTH); -#ifndef TWO_FILE_COMMANDLINE - fprintf(stderr, "You must specify an input JPEG file name when supplying\n"); - fprintf(stderr, "comment text from standard input.\n"); -#endif - - exit(EXIT_FAILURE); -} - - -static int -keymatch (char * arg, const char * keyword, int minchars) -/* Case-insensitive matching of (possibly abbreviated) keyword switches. */ -/* keyword is the constant keyword (must be lower case already), */ -/* minchars is length of minimum legal abbreviation. */ -{ - register int ca, ck; - register int nmatched = 0; - - while ((ca = *arg++) != '\0') { - if ((ck = *keyword++) == '\0') - return 0; /* arg longer than keyword, no good */ - if (isupper(ca)) /* force arg to lcase (assume ck is already) */ - ca = tolower(ca); - if (ca != ck) - return 0; /* no good */ - nmatched++; /* count matched characters */ - } - /* reached end of argument; fail if it's too short for unique abbrev */ - if (nmatched < minchars) - return 0; - return 1; /* A-OK */ -} - - -/* - * The main program. - */ - -int -main (int argc, char **argv) -{ - int argn; - char * arg; - int keep_COM = 1; - char * comment_arg = NULL; - FILE * comment_file = NULL; - unsigned int comment_length = 0; - int marker; - - /* On Mac, fetch a command line. */ -#ifdef USE_CCOMMAND - argc = ccommand(&argv); -#endif - - progname = argv[0]; - if (progname == NULL || progname[0] == 0) - progname = "wrjpgcom"; /* in case C library doesn't provide it */ - - /* Parse switches, if any */ - for (argn = 1; argn < argc; argn++) { - arg = argv[argn]; - if (arg[0] != '-') - break; /* not switch, must be file name */ - arg++; /* advance over '-' */ - if (keymatch(arg, "replace", 1)) { - keep_COM = 0; - } else if (keymatch(arg, "cfile", 2)) { - if (++argn >= argc) usage(); - if ((comment_file = fopen(argv[argn], "r")) == NULL) { - fprintf(stderr, "%s: can't open %s\n", progname, argv[argn]); - exit(EXIT_FAILURE); - } - } else if (keymatch(arg, "comment", 1)) { - if (++argn >= argc) usage(); - comment_arg = argv[argn]; - /* If the comment text starts with '"', then we are probably running - * under MS-DOG and must parse out the quoted string ourselves. Sigh. - */ - if (comment_arg[0] == '"') { - comment_arg = (char *) malloc((size_t) MAX_COM_LENGTH); - if (comment_arg == NULL) - ERREXIT("Insufficient memory"); - strcpy(comment_arg, argv[argn]+1); - for (;;) { - comment_length = (unsigned int) strlen(comment_arg); - if (comment_length > 0 && comment_arg[comment_length-1] == '"') { - comment_arg[comment_length-1] = '\0'; /* zap terminating quote */ - break; - } - if (++argn >= argc) - ERREXIT("Missing ending quote mark"); - strcat(comment_arg, " "); - strcat(comment_arg, argv[argn]); - } - } - comment_length = (unsigned int) strlen(comment_arg); - } else - usage(); - } - - /* Cannot use both -comment and -cfile. */ - if (comment_arg != NULL && comment_file != NULL) - usage(); - /* If there is neither -comment nor -cfile, we will read the comment text - * from stdin; in this case there MUST be an input JPEG file name. - */ - if (comment_arg == NULL && comment_file == NULL && argn >= argc) - usage(); - - /* Open the input file. */ - if (argn < argc) { - if ((infile = fopen(argv[argn], READ_BINARY)) == NULL) { - fprintf(stderr, "%s: can't open %s\n", progname, argv[argn]); - exit(EXIT_FAILURE); - } - } else { - /* default input file is stdin */ -#ifdef USE_SETMODE /* need to hack file mode? */ - setmode(fileno(stdin), O_BINARY); -#endif -#ifdef USE_FDOPEN /* need to re-open in binary mode? */ - if ((infile = fdopen(fileno(stdin), READ_BINARY)) == NULL) { - fprintf(stderr, "%s: can't open stdin\n", progname); - exit(EXIT_FAILURE); - } -#else - infile = stdin; -#endif - } - - /* Open the output file. */ -#ifdef TWO_FILE_COMMANDLINE - /* Must have explicit output file name */ - if (argn != argc-2) { - fprintf(stderr, "%s: must name one input and one output file\n", - progname); - usage(); - } - if ((outfile = fopen(argv[argn+1], WRITE_BINARY)) == NULL) { - fprintf(stderr, "%s: can't open %s\n", progname, argv[argn+1]); - exit(EXIT_FAILURE); - } -#else - /* Unix style: expect zero or one file name */ - if (argn < argc-1) { - fprintf(stderr, "%s: only one input file\n", progname); - usage(); - } - /* default output file is stdout */ -#ifdef USE_SETMODE /* need to hack file mode? */ - setmode(fileno(stdout), O_BINARY); -#endif -#ifdef USE_FDOPEN /* need to re-open in binary mode? */ - if ((outfile = fdopen(fileno(stdout), WRITE_BINARY)) == NULL) { - fprintf(stderr, "%s: can't open stdout\n", progname); - exit(EXIT_FAILURE); - } -#else - outfile = stdout; -#endif -#endif /* TWO_FILE_COMMANDLINE */ - - /* Collect comment text from comment_file or stdin, if necessary */ - if (comment_arg == NULL) { - FILE * src_file; - int c; - - comment_arg = (char *) malloc((size_t) MAX_COM_LENGTH); - if (comment_arg == NULL) - ERREXIT("Insufficient memory"); - comment_length = 0; - src_file = (comment_file != NULL ? comment_file : stdin); - while ((c = getc(src_file)) != EOF) { - if (comment_length >= (unsigned int) MAX_COM_LENGTH) { - fprintf(stderr, "Comment text may not exceed %u bytes\n", - (unsigned int) MAX_COM_LENGTH); - exit(EXIT_FAILURE); - } - comment_arg[comment_length++] = (char) c; - } - if (comment_file != NULL) - fclose(comment_file); - } - - /* Copy JPEG headers until SOFn marker; - * we will insert the new comment marker just before SOFn. - * This (a) causes the new comment to appear after, rather than before, - * existing comments; and (b) ensures that comments come after any JFIF - * or JFXX markers, as required by the JFIF specification. - */ - marker = scan_JPEG_header(keep_COM); - /* Insert the new COM marker, but only if nonempty text has been supplied */ - if (comment_length > 0) { - write_marker(M_COM); - write_2_bytes(comment_length + 2); - while (comment_length > 0) { - write_1_byte(*comment_arg++); - comment_length--; - } - } - /* Duplicate the remainder of the source file. - * Note that any COM markers occuring after SOF will not be touched. - */ - write_marker(marker); - copy_rest_of_file(); - - /* All done. */ - exit(EXIT_SUCCESS); - return 0; /* suppress no-return-value warnings */ -} diff --git a/jpg/wrppm.c b/jpg/wrppm.c deleted file mode 100644 index 68e0c85..0000000 --- a/jpg/wrppm.c +++ /dev/null @@ -1,269 +0,0 @@ -/* - * wrppm.c - * - * Copyright (C) 1991-1996, Thomas G. Lane. - * Modified 2009 by Guido Vollbeding. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file contains routines to write output images in PPM/PGM format. - * The extended 2-byte-per-sample raw PPM/PGM formats are supported. - * The PBMPLUS library is NOT required to compile this software - * (but it is highly useful as a set of PPM image manipulation programs). - * - * These routines may need modification for non-Unix environments or - * specialized applications. As they stand, they assume output to - * an ordinary stdio stream. - */ - -#include "cdjpeg.h" /* Common decls for cjpeg/djpeg applications */ - -#ifdef PPM_SUPPORTED - - -/* - * For 12-bit JPEG data, we either downscale the values to 8 bits - * (to write standard byte-per-sample PPM/PGM files), or output - * nonstandard word-per-sample PPM/PGM files. Downscaling is done - * if PPM_NORAWWORD is defined (this can be done in the Makefile - * or in jconfig.h). - * (When the core library supports data precision reduction, a cleaner - * implementation will be to ask for that instead.) - */ - -#if BITS_IN_JSAMPLE == 8 -#define PUTPPMSAMPLE(ptr,v) *ptr++ = (char) (v) -#define BYTESPERSAMPLE 1 -#define PPM_MAXVAL 255 -#else -#ifdef PPM_NORAWWORD -#define PUTPPMSAMPLE(ptr,v) *ptr++ = (char) ((v) >> (BITS_IN_JSAMPLE-8)) -#define BYTESPERSAMPLE 1 -#define PPM_MAXVAL 255 -#else -/* The word-per-sample format always puts the MSB first. */ -#define PUTPPMSAMPLE(ptr,v) \ - { register int val_ = v; \ - *ptr++ = (char) ((val_ >> 8) & 0xFF); \ - *ptr++ = (char) (val_ & 0xFF); \ - } -#define BYTESPERSAMPLE 2 -#define PPM_MAXVAL ((1<pub.output_file, dest->iobuffer, dest->buffer_width); -} - - -/* - * This code is used when we have to copy the data and apply a pixel - * format translation. Typically this only happens in 12-bit mode. - */ - -METHODDEF(void) -copy_pixel_rows (j_decompress_ptr cinfo, djpeg_dest_ptr dinfo, - JDIMENSION rows_supplied) -{ - ppm_dest_ptr dest = (ppm_dest_ptr) dinfo; - register char * bufferptr; - register JSAMPROW ptr; - register JDIMENSION col; - - ptr = dest->pub.buffer[0]; - bufferptr = dest->iobuffer; - for (col = dest->samples_per_row; col > 0; col--) { - PUTPPMSAMPLE(bufferptr, GETJSAMPLE(*ptr++)); - } - (void) JFWRITE(dest->pub.output_file, dest->iobuffer, dest->buffer_width); -} - - -/* - * Write some pixel data when color quantization is in effect. - * We have to demap the color index values to straight data. - */ - -METHODDEF(void) -put_demapped_rgb (j_decompress_ptr cinfo, djpeg_dest_ptr dinfo, - JDIMENSION rows_supplied) -{ - ppm_dest_ptr dest = (ppm_dest_ptr) dinfo; - register char * bufferptr; - register int pixval; - register JSAMPROW ptr; - register JSAMPROW color_map0 = cinfo->colormap[0]; - register JSAMPROW color_map1 = cinfo->colormap[1]; - register JSAMPROW color_map2 = cinfo->colormap[2]; - register JDIMENSION col; - - ptr = dest->pub.buffer[0]; - bufferptr = dest->iobuffer; - for (col = cinfo->output_width; col > 0; col--) { - pixval = GETJSAMPLE(*ptr++); - PUTPPMSAMPLE(bufferptr, GETJSAMPLE(color_map0[pixval])); - PUTPPMSAMPLE(bufferptr, GETJSAMPLE(color_map1[pixval])); - PUTPPMSAMPLE(bufferptr, GETJSAMPLE(color_map2[pixval])); - } - (void) JFWRITE(dest->pub.output_file, dest->iobuffer, dest->buffer_width); -} - - -METHODDEF(void) -put_demapped_gray (j_decompress_ptr cinfo, djpeg_dest_ptr dinfo, - JDIMENSION rows_supplied) -{ - ppm_dest_ptr dest = (ppm_dest_ptr) dinfo; - register char * bufferptr; - register JSAMPROW ptr; - register JSAMPROW color_map = cinfo->colormap[0]; - register JDIMENSION col; - - ptr = dest->pub.buffer[0]; - bufferptr = dest->iobuffer; - for (col = cinfo->output_width; col > 0; col--) { - PUTPPMSAMPLE(bufferptr, GETJSAMPLE(color_map[GETJSAMPLE(*ptr++)])); - } - (void) JFWRITE(dest->pub.output_file, dest->iobuffer, dest->buffer_width); -} - - -/* - * Startup: write the file header. - */ - -METHODDEF(void) -start_output_ppm (j_decompress_ptr cinfo, djpeg_dest_ptr dinfo) -{ - ppm_dest_ptr dest = (ppm_dest_ptr) dinfo; - - /* Emit file header */ - switch (cinfo->out_color_space) { - case JCS_GRAYSCALE: - /* emit header for raw PGM format */ - fprintf(dest->pub.output_file, "P5\n%ld %ld\n%d\n", - (long) cinfo->output_width, (long) cinfo->output_height, - PPM_MAXVAL); - break; - case JCS_RGB: - /* emit header for raw PPM format */ - fprintf(dest->pub.output_file, "P6\n%ld %ld\n%d\n", - (long) cinfo->output_width, (long) cinfo->output_height, - PPM_MAXVAL); - break; - default: - ERREXIT(cinfo, JERR_PPM_COLORSPACE); - } -} - - -/* - * Finish up at the end of the file. - */ - -METHODDEF(void) -finish_output_ppm (j_decompress_ptr cinfo, djpeg_dest_ptr dinfo) -{ - /* Make sure we wrote the output file OK */ - fflush(dinfo->output_file); - if (ferror(dinfo->output_file)) - ERREXIT(cinfo, JERR_FILE_WRITE); -} - - -/* - * The module selection routine for PPM format output. - */ - -GLOBAL(djpeg_dest_ptr) -jinit_write_ppm (j_decompress_ptr cinfo) -{ - ppm_dest_ptr dest; - - /* Create module interface object, fill in method pointers */ - dest = (ppm_dest_ptr) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - SIZEOF(ppm_dest_struct)); - dest->pub.start_output = start_output_ppm; - dest->pub.finish_output = finish_output_ppm; - - /* Calculate output image dimensions so we can allocate space */ - jpeg_calc_output_dimensions(cinfo); - - /* Create physical I/O buffer. Note we make this near on a PC. */ - dest->samples_per_row = cinfo->output_width * cinfo->out_color_components; - dest->buffer_width = dest->samples_per_row * (BYTESPERSAMPLE * SIZEOF(char)); - dest->iobuffer = (char *) (*cinfo->mem->alloc_small) - ((j_common_ptr) cinfo, JPOOL_IMAGE, dest->buffer_width); - - if (cinfo->quantize_colors || BITS_IN_JSAMPLE != 8 || - SIZEOF(JSAMPLE) != SIZEOF(char)) { - /* When quantizing, we need an output buffer for colormap indexes - * that's separate from the physical I/O buffer. We also need a - * separate buffer if pixel format translation must take place. - */ - dest->pub.buffer = (*cinfo->mem->alloc_sarray) - ((j_common_ptr) cinfo, JPOOL_IMAGE, - cinfo->output_width * cinfo->output_components, (JDIMENSION) 1); - dest->pub.buffer_height = 1; - if (! cinfo->quantize_colors) - dest->pub.put_pixel_rows = copy_pixel_rows; - else if (cinfo->out_color_space == JCS_GRAYSCALE) - dest->pub.put_pixel_rows = put_demapped_gray; - else - dest->pub.put_pixel_rows = put_demapped_rgb; - } else { - /* We will fwrite() directly from decompressor output buffer. */ - /* Synthesize a JSAMPARRAY pointer structure */ - /* Cast here implies near->far pointer conversion on PCs */ - dest->pixrow = (JSAMPROW) dest->iobuffer; - dest->pub.buffer = & dest->pixrow; - dest->pub.buffer_height = 1; - dest->pub.put_pixel_rows = put_pixel_rows; - } - - return (djpeg_dest_ptr) dest; -} - -#endif /* PPM_SUPPORTED */ diff --git a/jpg/wrrle.c b/jpg/wrrle.c deleted file mode 100644 index a4e7337..0000000 --- a/jpg/wrrle.c +++ /dev/null @@ -1,305 +0,0 @@ -/* - * wrrle.c - * - * Copyright (C) 1991-1996, Thomas G. Lane. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file contains routines to write output images in RLE format. - * The Utah Raster Toolkit library is required (version 3.1 or later). - * - * These routines may need modification for non-Unix environments or - * specialized applications. As they stand, they assume output to - * an ordinary stdio stream. - * - * Based on code contributed by Mike Lijewski, - * with updates from Robert Hutchinson. - */ - -#include "cdjpeg.h" /* Common decls for cjpeg/djpeg applications */ - -#ifdef RLE_SUPPORTED - -/* rle.h is provided by the Utah Raster Toolkit. */ - -#include - -/* - * We assume that JSAMPLE has the same representation as rle_pixel, - * to wit, "unsigned char". Hence we can't cope with 12- or 16-bit samples. - */ - -#if BITS_IN_JSAMPLE != 8 - Sorry, this code only copes with 8-bit JSAMPLEs. /* deliberate syntax err */ -#endif - - -/* - * Since RLE stores scanlines bottom-to-top, we have to invert the image - * from JPEG's top-to-bottom order. To do this, we save the outgoing data - * in a virtual array during put_pixel_row calls, then actually emit the - * RLE file during finish_output. - */ - - -/* - * For now, if we emit an RLE color map then it is always 256 entries long, - * though not all of the entries need be used. - */ - -#define CMAPBITS 8 -#define CMAPLENGTH (1<<(CMAPBITS)) - -typedef struct { - struct djpeg_dest_struct pub; /* public fields */ - - jvirt_sarray_ptr image; /* virtual array to store the output image */ - rle_map *colormap; /* RLE-style color map, or NULL if none */ - rle_pixel **rle_row; /* To pass rows to rle_putrow() */ - -} rle_dest_struct; - -typedef rle_dest_struct * rle_dest_ptr; - -/* Forward declarations */ -METHODDEF(void) rle_put_pixel_rows - JPP((j_decompress_ptr cinfo, djpeg_dest_ptr dinfo, - JDIMENSION rows_supplied)); - - -/* - * Write the file header. - * - * In this module it's easier to wait till finish_output to write anything. - */ - -METHODDEF(void) -start_output_rle (j_decompress_ptr cinfo, djpeg_dest_ptr dinfo) -{ - rle_dest_ptr dest = (rle_dest_ptr) dinfo; - size_t cmapsize; - int i, ci; -#ifdef PROGRESS_REPORT - cd_progress_ptr progress = (cd_progress_ptr) cinfo->progress; -#endif - - /* - * Make sure the image can be stored in RLE format. - * - * - RLE stores image dimensions as *signed* 16 bit integers. JPEG - * uses unsigned, so we have to check the width. - * - * - Colorspace is expected to be grayscale or RGB. - * - * - The number of channels (components) is expected to be 1 (grayscale/ - * pseudocolor) or 3 (truecolor/directcolor). - * (could be 2 or 4 if using an alpha channel, but we aren't) - */ - - if (cinfo->output_width > 32767 || cinfo->output_height > 32767) - ERREXIT2(cinfo, JERR_RLE_DIMENSIONS, cinfo->output_width, - cinfo->output_height); - - if (cinfo->out_color_space != JCS_GRAYSCALE && - cinfo->out_color_space != JCS_RGB) - ERREXIT(cinfo, JERR_RLE_COLORSPACE); - - if (cinfo->output_components != 1 && cinfo->output_components != 3) - ERREXIT1(cinfo, JERR_RLE_TOOMANYCHANNELS, cinfo->num_components); - - /* Convert colormap, if any, to RLE format. */ - - dest->colormap = NULL; - - if (cinfo->quantize_colors) { - /* Allocate storage for RLE-style cmap, zero any extra entries */ - cmapsize = cinfo->out_color_components * CMAPLENGTH * SIZEOF(rle_map); - dest->colormap = (rle_map *) (*cinfo->mem->alloc_small) - ((j_common_ptr) cinfo, JPOOL_IMAGE, cmapsize); - MEMZERO(dest->colormap, cmapsize); - - /* Save away data in RLE format --- note 8-bit left shift! */ - /* Shifting would need adjustment for JSAMPLEs wider than 8 bits. */ - for (ci = 0; ci < cinfo->out_color_components; ci++) { - for (i = 0; i < cinfo->actual_number_of_colors; i++) { - dest->colormap[ci * CMAPLENGTH + i] = - GETJSAMPLE(cinfo->colormap[ci][i]) << 8; - } - } - } - - /* Set the output buffer to the first row */ - dest->pub.buffer = (*cinfo->mem->access_virt_sarray) - ((j_common_ptr) cinfo, dest->image, (JDIMENSION) 0, (JDIMENSION) 1, TRUE); - dest->pub.buffer_height = 1; - - dest->pub.put_pixel_rows = rle_put_pixel_rows; - -#ifdef PROGRESS_REPORT - if (progress != NULL) { - progress->total_extra_passes++; /* count file writing as separate pass */ - } -#endif -} - - -/* - * Write some pixel data. - * - * This routine just saves the data away in a virtual array. - */ - -METHODDEF(void) -rle_put_pixel_rows (j_decompress_ptr cinfo, djpeg_dest_ptr dinfo, - JDIMENSION rows_supplied) -{ - rle_dest_ptr dest = (rle_dest_ptr) dinfo; - - if (cinfo->output_scanline < cinfo->output_height) { - dest->pub.buffer = (*cinfo->mem->access_virt_sarray) - ((j_common_ptr) cinfo, dest->image, - cinfo->output_scanline, (JDIMENSION) 1, TRUE); - } -} - -/* - * Finish up at the end of the file. - * - * Here is where we really output the RLE file. - */ - -METHODDEF(void) -finish_output_rle (j_decompress_ptr cinfo, djpeg_dest_ptr dinfo) -{ - rle_dest_ptr dest = (rle_dest_ptr) dinfo; - rle_hdr header; /* Output file information */ - rle_pixel **rle_row, *red, *green, *blue; - JSAMPROW output_row; - char cmapcomment[80]; - int row, col; - int ci; -#ifdef PROGRESS_REPORT - cd_progress_ptr progress = (cd_progress_ptr) cinfo->progress; -#endif - - /* Initialize the header info */ - header = *rle_hdr_init(NULL); - header.rle_file = dest->pub.output_file; - header.xmin = 0; - header.xmax = cinfo->output_width - 1; - header.ymin = 0; - header.ymax = cinfo->output_height - 1; - header.alpha = 0; - header.ncolors = cinfo->output_components; - for (ci = 0; ci < cinfo->output_components; ci++) { - RLE_SET_BIT(header, ci); - } - if (cinfo->quantize_colors) { - header.ncmap = cinfo->out_color_components; - header.cmaplen = CMAPBITS; - header.cmap = dest->colormap; - /* Add a comment to the output image with the true colormap length. */ - sprintf(cmapcomment, "color_map_length=%d", cinfo->actual_number_of_colors); - rle_putcom(cmapcomment, &header); - } - - /* Emit the RLE header and color map (if any) */ - rle_put_setup(&header); - - /* Now output the RLE data from our virtual array. - * We assume here that (a) rle_pixel is represented the same as JSAMPLE, - * and (b) we are not on a machine where FAR pointers differ from regular. - */ - -#ifdef PROGRESS_REPORT - if (progress != NULL) { - progress->pub.pass_limit = cinfo->output_height; - progress->pub.pass_counter = 0; - (*progress->pub.progress_monitor) ((j_common_ptr) cinfo); - } -#endif - - if (cinfo->output_components == 1) { - for (row = cinfo->output_height-1; row >= 0; row--) { - rle_row = (rle_pixel **) (*cinfo->mem->access_virt_sarray) - ((j_common_ptr) cinfo, dest->image, - (JDIMENSION) row, (JDIMENSION) 1, FALSE); - rle_putrow(rle_row, (int) cinfo->output_width, &header); -#ifdef PROGRESS_REPORT - if (progress != NULL) { - progress->pub.pass_counter++; - (*progress->pub.progress_monitor) ((j_common_ptr) cinfo); - } -#endif - } - } else { - for (row = cinfo->output_height-1; row >= 0; row--) { - rle_row = (rle_pixel **) dest->rle_row; - output_row = * (*cinfo->mem->access_virt_sarray) - ((j_common_ptr) cinfo, dest->image, - (JDIMENSION) row, (JDIMENSION) 1, FALSE); - red = rle_row[0]; - green = rle_row[1]; - blue = rle_row[2]; - for (col = cinfo->output_width; col > 0; col--) { - *red++ = GETJSAMPLE(*output_row++); - *green++ = GETJSAMPLE(*output_row++); - *blue++ = GETJSAMPLE(*output_row++); - } - rle_putrow(rle_row, (int) cinfo->output_width, &header); -#ifdef PROGRESS_REPORT - if (progress != NULL) { - progress->pub.pass_counter++; - (*progress->pub.progress_monitor) ((j_common_ptr) cinfo); - } -#endif - } - } - -#ifdef PROGRESS_REPORT - if (progress != NULL) - progress->completed_extra_passes++; -#endif - - /* Emit file trailer */ - rle_puteof(&header); - fflush(dest->pub.output_file); - if (ferror(dest->pub.output_file)) - ERREXIT(cinfo, JERR_FILE_WRITE); -} - - -/* - * The module selection routine for RLE format output. - */ - -GLOBAL(djpeg_dest_ptr) -jinit_write_rle (j_decompress_ptr cinfo) -{ - rle_dest_ptr dest; - - /* Create module interface object, fill in method pointers */ - dest = (rle_dest_ptr) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - SIZEOF(rle_dest_struct)); - dest->pub.start_output = start_output_rle; - dest->pub.finish_output = finish_output_rle; - - /* Calculate output image dimensions so we can allocate space */ - jpeg_calc_output_dimensions(cinfo); - - /* Allocate a work array for output to the RLE library. */ - dest->rle_row = (*cinfo->mem->alloc_sarray) - ((j_common_ptr) cinfo, JPOOL_IMAGE, - cinfo->output_width, (JDIMENSION) cinfo->output_components); - - /* Allocate a virtual array to hold the image. */ - dest->image = (*cinfo->mem->request_virt_sarray) - ((j_common_ptr) cinfo, JPOOL_IMAGE, FALSE, - (JDIMENSION) (cinfo->output_width * cinfo->output_components), - cinfo->output_height, (JDIMENSION) 1); - - return (djpeg_dest_ptr) dest; -} - -#endif /* RLE_SUPPORTED */ diff --git a/jpg/wrtarga.c b/jpg/wrtarga.c deleted file mode 100644 index cf104d2..0000000 --- a/jpg/wrtarga.c +++ /dev/null @@ -1,253 +0,0 @@ -/* - * wrtarga.c - * - * Copyright (C) 1991-1996, Thomas G. Lane. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file contains routines to write output images in Targa format. - * - * These routines may need modification for non-Unix environments or - * specialized applications. As they stand, they assume output to - * an ordinary stdio stream. - * - * Based on code contributed by Lee Daniel Crocker. - */ - -#include "cdjpeg.h" /* Common decls for cjpeg/djpeg applications */ - -#ifdef TARGA_SUPPORTED - - -/* - * To support 12-bit JPEG data, we'd have to scale output down to 8 bits. - * This is not yet implemented. - */ - -#if BITS_IN_JSAMPLE != 8 - Sorry, this code only copes with 8-bit JSAMPLEs. /* deliberate syntax err */ -#endif - -/* - * The output buffer needs to be writable by fwrite(). On PCs, we must - * allocate the buffer in near data space, because we are assuming small-data - * memory model, wherein fwrite() can't reach far memory. If you need to - * process very wide images on a PC, you might have to compile in large-memory - * model, or else replace fwrite() with a putc() loop --- which will be much - * slower. - */ - - -/* Private version of data destination object */ - -typedef struct { - struct djpeg_dest_struct pub; /* public fields */ - - char *iobuffer; /* physical I/O buffer */ - JDIMENSION buffer_width; /* width of one row */ -} tga_dest_struct; - -typedef tga_dest_struct * tga_dest_ptr; - - -LOCAL(void) -write_header (j_decompress_ptr cinfo, djpeg_dest_ptr dinfo, int num_colors) -/* Create and write a Targa header */ -{ - char targaheader[18]; - - /* Set unused fields of header to 0 */ - MEMZERO(targaheader, SIZEOF(targaheader)); - - if (num_colors > 0) { - targaheader[1] = 1; /* color map type 1 */ - targaheader[5] = (char) (num_colors & 0xFF); - targaheader[6] = (char) (num_colors >> 8); - targaheader[7] = 24; /* 24 bits per cmap entry */ - } - - targaheader[12] = (char) (cinfo->output_width & 0xFF); - targaheader[13] = (char) (cinfo->output_width >> 8); - targaheader[14] = (char) (cinfo->output_height & 0xFF); - targaheader[15] = (char) (cinfo->output_height >> 8); - targaheader[17] = 0x20; /* Top-down, non-interlaced */ - - if (cinfo->out_color_space == JCS_GRAYSCALE) { - targaheader[2] = 3; /* image type = uncompressed gray-scale */ - targaheader[16] = 8; /* bits per pixel */ - } else { /* must be RGB */ - if (num_colors > 0) { - targaheader[2] = 1; /* image type = colormapped RGB */ - targaheader[16] = 8; - } else { - targaheader[2] = 2; /* image type = uncompressed RGB */ - targaheader[16] = 24; - } - } - - if (JFWRITE(dinfo->output_file, targaheader, 18) != (size_t) 18) - ERREXIT(cinfo, JERR_FILE_WRITE); -} - - -/* - * Write some pixel data. - * In this module rows_supplied will always be 1. - */ - -METHODDEF(void) -put_pixel_rows (j_decompress_ptr cinfo, djpeg_dest_ptr dinfo, - JDIMENSION rows_supplied) -/* used for unquantized full-color output */ -{ - tga_dest_ptr dest = (tga_dest_ptr) dinfo; - register JSAMPROW inptr; - register char * outptr; - register JDIMENSION col; - - inptr = dest->pub.buffer[0]; - outptr = dest->iobuffer; - for (col = cinfo->output_width; col > 0; col--) { - outptr[0] = (char) GETJSAMPLE(inptr[2]); /* RGB to BGR order */ - outptr[1] = (char) GETJSAMPLE(inptr[1]); - outptr[2] = (char) GETJSAMPLE(inptr[0]); - inptr += 3, outptr += 3; - } - (void) JFWRITE(dest->pub.output_file, dest->iobuffer, dest->buffer_width); -} - -METHODDEF(void) -put_gray_rows (j_decompress_ptr cinfo, djpeg_dest_ptr dinfo, - JDIMENSION rows_supplied) -/* used for grayscale OR quantized color output */ -{ - tga_dest_ptr dest = (tga_dest_ptr) dinfo; - register JSAMPROW inptr; - register char * outptr; - register JDIMENSION col; - - inptr = dest->pub.buffer[0]; - outptr = dest->iobuffer; - for (col = cinfo->output_width; col > 0; col--) { - *outptr++ = (char) GETJSAMPLE(*inptr++); - } - (void) JFWRITE(dest->pub.output_file, dest->iobuffer, dest->buffer_width); -} - - -/* - * Write some demapped pixel data when color quantization is in effect. - * For Targa, this is only applied to grayscale data. - */ - -METHODDEF(void) -put_demapped_gray (j_decompress_ptr cinfo, djpeg_dest_ptr dinfo, - JDIMENSION rows_supplied) -{ - tga_dest_ptr dest = (tga_dest_ptr) dinfo; - register JSAMPROW inptr; - register char * outptr; - register JSAMPROW color_map0 = cinfo->colormap[0]; - register JDIMENSION col; - - inptr = dest->pub.buffer[0]; - outptr = dest->iobuffer; - for (col = cinfo->output_width; col > 0; col--) { - *outptr++ = (char) GETJSAMPLE(color_map0[GETJSAMPLE(*inptr++)]); - } - (void) JFWRITE(dest->pub.output_file, dest->iobuffer, dest->buffer_width); -} - - -/* - * Startup: write the file header. - */ - -METHODDEF(void) -start_output_tga (j_decompress_ptr cinfo, djpeg_dest_ptr dinfo) -{ - tga_dest_ptr dest = (tga_dest_ptr) dinfo; - int num_colors, i; - FILE *outfile; - - if (cinfo->out_color_space == JCS_GRAYSCALE) { - /* Targa doesn't have a mapped grayscale format, so we will */ - /* demap quantized gray output. Never emit a colormap. */ - write_header(cinfo, dinfo, 0); - if (cinfo->quantize_colors) - dest->pub.put_pixel_rows = put_demapped_gray; - else - dest->pub.put_pixel_rows = put_gray_rows; - } else if (cinfo->out_color_space == JCS_RGB) { - if (cinfo->quantize_colors) { - /* We only support 8-bit colormap indexes, so only 256 colors */ - num_colors = cinfo->actual_number_of_colors; - if (num_colors > 256) - ERREXIT1(cinfo, JERR_TOO_MANY_COLORS, num_colors); - write_header(cinfo, dinfo, num_colors); - /* Write the colormap. Note Targa uses BGR byte order */ - outfile = dest->pub.output_file; - for (i = 0; i < num_colors; i++) { - putc(GETJSAMPLE(cinfo->colormap[2][i]), outfile); - putc(GETJSAMPLE(cinfo->colormap[1][i]), outfile); - putc(GETJSAMPLE(cinfo->colormap[0][i]), outfile); - } - dest->pub.put_pixel_rows = put_gray_rows; - } else { - write_header(cinfo, dinfo, 0); - dest->pub.put_pixel_rows = put_pixel_rows; - } - } else { - ERREXIT(cinfo, JERR_TGA_COLORSPACE); - } -} - - -/* - * Finish up at the end of the file. - */ - -METHODDEF(void) -finish_output_tga (j_decompress_ptr cinfo, djpeg_dest_ptr dinfo) -{ - /* Make sure we wrote the output file OK */ - fflush(dinfo->output_file); - if (ferror(dinfo->output_file)) - ERREXIT(cinfo, JERR_FILE_WRITE); -} - - -/* - * The module selection routine for Targa format output. - */ - -GLOBAL(djpeg_dest_ptr) -jinit_write_targa (j_decompress_ptr cinfo) -{ - tga_dest_ptr dest; - - /* Create module interface object, fill in method pointers */ - dest = (tga_dest_ptr) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - SIZEOF(tga_dest_struct)); - dest->pub.start_output = start_output_tga; - dest->pub.finish_output = finish_output_tga; - - /* Calculate output image dimensions so we can allocate space */ - jpeg_calc_output_dimensions(cinfo); - - /* Create I/O buffer. Note we make this near on a PC. */ - dest->buffer_width = cinfo->output_width * cinfo->output_components; - dest->iobuffer = (char *) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - (size_t) (dest->buffer_width * SIZEOF(char))); - - /* Create decompressor output buffer. */ - dest->pub.buffer = (*cinfo->mem->alloc_sarray) - ((j_common_ptr) cinfo, JPOOL_IMAGE, dest->buffer_width, (JDIMENSION) 1); - dest->pub.buffer_height = 1; - - return (djpeg_dest_ptr) dest; -} - -#endif /* TARGA_SUPPORTED */ diff --git a/link/Jamfile b/link/Jamfile index 4d4dc24..319757e 100644 --- a/link/Jamfile +++ b/link/Jamfile @@ -15,7 +15,8 @@ Executables = collink ; InstallBin $(DESTDIR)$(PREFIX)/bin : $(Executables) ; HDRS = ../h ../icc ../rspl ../plot ../numlib $(TIFFINC) ; -LINKLIBS = $(TIFFLIB) $(JPEGLIB) ../icc/libicc ../plot/libplot ../numlib/libnum $(LibWin) ; +LINKLIBS = $(TIFFLIB) $(JPEGLIB) ../icc/libicc ../plot/libplot +../numlib/libnum ../numlib/libui $(LibWin) ; # K only reprocessor #Main icc2ko : icc2ko.c ; diff --git a/link/collink.c b/link/collink.c index 3bb93b7..655d4e4 100644 --- a/link/collink.c +++ b/link/collink.c @@ -1,6 +1,4 @@ -/* Version with Lab bt.1886 */ - /* * collink * @@ -25,10 +23,23 @@ * Abstract link support intent doesn't work properly for anything * other than absolute. This should really be fixed. * + * It would be good to add an option to allow a smaller destination + * gamut than the destination colorspace. This would allow applying + * a gamut mapping while staying in a wide gamut space. Do this + * in a similar way to the source + image gamut. + * ie. "-S src.gam,dst.gam" + * + * TV YCbCr clipping should preserve hue. + * */ /* NOTES: + Video :- current WTW TV encoding is clipped, not passed through with extrapolation. + If the display does a per component clipping, then passing through is probably + a bad thing, and cliping is the right behaviour, and just pass + the sync level though. + Normally the device side per channel curves are copied from the source profiles to the link profile on the assumption that the raw linearisation they do is good, and should be maintained @@ -83,22 +94,71 @@ */ +/* + Video encoding: + + ArgyllCMS represents device values in a FP normalised form, + where 0.0 corresponds to the smallest valid device encoding, + and 1.0 corresponds to the largest valid device encoding. + + For normal device values this means that 0.0 corresponds + with 0, and 1.0 corresponds with 2^bits-1. + + For video this means that 0.0 corresponds with 0, + and 1.0 corresponds with (2^8-1) * 2^(bits-8), + with values above this regarded as aliases for + the maximum encoded values (ie. clipped/clamped). + Suitable care needs to be taken when converting + ArgyllCMS normalized numbers to/from video encoded + binary values. Because the full range and Video + encoding valid ranges coincide for 8 bits, + the 8 bit nomenclature and FP values are used + internally to defined the black and white points + for normalised video values. + + There are additional complications with video encoding + when interacting with cLUTs that have a resolution + of less that 256. From an accuracy point of + view it is highly desirable that the black and possibly + white points coincide with a cLUT node. + + Using cLUTs that are implemented using FP or high precision + math, the best way of achieving this is to use a piecewise + mapping of the FP values 0.0 bp wp 1.0 to + 0.0 cLUT_bp cLUT_wp 1.0, thereby preserving the + full encoding range in an encoding agnostic fashion. + + External cLUTs that are implemented using integer logic + (ie, in HW, such as the eeColor) may choose to cope + with this probem in a different way, i.e. by + scaling against a value above the largest valid + device encoding. For instance, cLUTs of resolution + 65 would be normalised to 65 rather than the usual 64, + and a 16 bit encoding would be normalised to + 65536 rather than 65289, thereby lining the black + point encoded value up with a cLUT node as well + as making the normalised values independent + of the encoding bit depth. This implies that + the maximum valid encoding falls short of the + last cLUT entry. + +*/ + #undef USE_MERGE_CLUT_OPT /* [Undef] When using inverse A2B table, merge the output luts */ /* with the clut for faster operation, and clipping in */ /* Jab space. Turned off because it affects the accuracy too much, */ /* and xicc handles Jab clip without this now. */ +#define USE_APXLS /* [Define] Use least squares approximation setting cLUT */ #define USE_CAM_CLIP_OPT /* [Define] Clip out of gamut in CAM space rather than XYZ or L*a*b* */ #define ENKHACK /* [Define] Enable K hack code */ #undef WARN_CLUT_CLIPPING /* [Undef] Print warning if setting clut clips */ -#undef DEBUG /* Report values of each sample transformed */ -#undef DEBUGC /* ie "if (tt)" */ /* Debug condition */ -#undef DEBUG_ONE /* test a single value out. Look for DBGNO to set value. */ -#undef NEUTKDEBUG /* print info about neutral L -> K mapping */ - +#undef DEBUG /* [Und] Report values of each sample transformed */ +#undef DEBUGC /* [Und] ie "if (tt)" */ /* Debug condition */ +#undef DEBUG_ONE /* [Unf] test a single value out. Look for DBGNO to set value. */ +#undef NEUTKDEBUG /* [Unf] print info about neutral L -> K mapping */ -#undef LINTERP_OR /* Use simple extrapolation of Video encoded overrage values */ #include #include @@ -112,9 +172,11 @@ #include "numlib.h" #include "icc.h" #include "xicc.h" +#include "bt1886.h" #include "gamut.h" #include "gammap.h" #include "vrml.h" +#include "ui.h" void usage(char *diag, ...) { int i; @@ -138,7 +200,7 @@ void usage(char *diag, ...) { fprintf(stderr," -q lmhu Quality - Low, Medium (def), High, Ultra\n"); // fprintf(stderr," -q fmsu Speed - Fast, Medium (def), Slow, Ultra Slow\n"); fprintf(stderr," -r res Override clut res. set by -q\n"); - fprintf(stderr," -n Don't preserve device linearization curves in result\n"); + fprintf(stderr," -n [i|o] Don't preserve device linearization curves in result\n"); fprintf(stderr," -f Special :- Force neutral colors to be K only output\n"); fprintf(stderr," -fk Special :- Force K only neutral colors to be K only output\n"); fprintf(stderr," -F Special :- Force all colors to be K only output\n"); @@ -164,7 +226,7 @@ void usage(char *diag, ...) { fprintf(stderr," %s\n",gmi.desc); } fprintf(stderr," -w [J,a,b] Use forced whitepoint hack [optional target point]\n"); -// fprintf(stderr," -W J,a,b Forced whitepoint adjustment by delta Jab\n"); + fprintf(stderr," -b Use RGB->RGB forced black point hack\n"); fprintf(stderr," -c viewcond set source viewing conditions for %s,\n",icxcam_description(cam_default)); fprintf(stderr," either an enumerated choice, or a parameter\n"); fprintf(stderr," -d viewcond set destination viewing conditions for %s,\n",icxcam_description(cam_default)); @@ -203,14 +265,16 @@ void usage(char *diag, ...) { fprintf(stderr," -3 flag Create \"3DLut\" output file as well as devlink\n"); fprintf(stderr," e eeColor .txt file\n"); fprintf(stderr," m MadVR .3dlut\t file\n"); - fprintf(stderr," -I b Apply BT.1886-like mapping with effective gamma 2.2 to input\n"); - fprintf(stderr," -I b:g.g Apply BT.1886-like mapping with effective gamma g.g to input\n"); - fprintf(stderr," -I B Apply BT.1886 mapping with technical gamma 2.4 to input\n"); - fprintf(stderr," -I B:g.g Apply BT.1886 mapping with technical gamma g.g to input\n"); + fprintf(stderr," c IRIDAS .cube file\n"); + fprintf(stderr," -I B Use BT.1886 source EOTF with technical gamma 2.4\n"); + fprintf(stderr," -I b:g.g Use BT.1886-like source EOTF with effective gamma g.g\n"); + fprintf(stderr," -I b:p.p:g.g Use effective gamma g.g source EOTF with p.p prop. output black point offset\n"); + fprintf(stderr," -I g:g.g Use effective gamma g.g source EOTF with all output black point offset\n"); fprintf(stderr," -e flag Video encode input as:\n"); fprintf(stderr," -E flag Video encode output as:\n"); fprintf(stderr," n normal 0..1 full range RGB levels (default)\n"); fprintf(stderr," t (16-235)/255 \"TV\" RGB levels\n"); + fprintf(stderr," T (16-235)/255 \"TV\" RGB levels, clip WTW [Input Only]\n"); fprintf(stderr," 6 Rec601 YCbCr SD (16-235,240)/255 \"TV\" levels\n"); fprintf(stderr," 7 Rec709 1125/60Hz YCbCr HD (16-235,240)/255 \"TV\" levels\n"); fprintf(stderr," 5 Rec709 1250/50Hz YCbCr HD (16-235,240)/255 \"TV\" levels\n"); @@ -218,37 +282,10 @@ void usage(char *diag, ...) { fprintf(stderr," C Rec2020 Constant Luminance YCbCr UHD (16-235,240)/255 \"TV\" levels\n"); fprintf(stderr," x xvYCC Rec601 YCbCr Rec709 Prims. SD (16-235,240)/255 \"TV\" levels\n"); fprintf(stderr," X xvYCC Rec709 YCbCr Rec709 Prims. HD (16-235,240)/255 \"TV\" levels\n"); - fprintf(stderr," -P Create gamut gammap.wrl diagostic\n"); + fprintf(stderr," -P Create gamut gammap%s diagostic\n",vrml_ext()); exit(1); } -/* ------------------------------------------- */ - -#ifdef NEVER -/* If video encoding is being used, the edge of the video range */ -/* may not fall on a gid boundary, leading to innacuracies */ -/* in black, white, or the saturated colors. */ -/* To fix this, we notice which gid values just get clipped */ -/* by the video encoding, and after the grid is complete, */ -/* do a fixup pass to set the grid value to that needed */ -/* to make the edge value perferct. */ - -/* For the eeColor wich has a fixed grod res. of 65, */ -/* the Luminance range 16-235 lands perfectly on a grid point, */ -/* and the CbCr maximum value of 240 missed by 1/256, */ -/* so we haven't yet implemented this fixup */ - -/* Instead we are just tweaking the cLUT values of the black */ -/* point to avoid any error at this critical value. */ - -typedef struct { - int clip; /* Clip mask */ - int ix[MXDI]; /* Index of the grid point that was clipped */ - double in[MXDI]; /* grid value that was clipped */ - double out[MXDO]; /* clipped value */ -} edgepoints; -#endif - /* ------------------------------------------- */ /* structures to support icc calbacks */ @@ -276,20 +313,23 @@ struct _profinfo { int lcurve; /* 1 to apply a Y like to L* curve for XYZ Matrix profiles */ /* 2 to apply a Y to L* curve for XYZ space */ int tvenc; /* 0 = full range RGB, 1 = RGB Video Level encoding, */ - /* 2 = Rec601 YCbCr encoding, 3 = Rec709 1150/60/2:1 YCbCr encoding */ - /* 4 = Rec709 1250/50/2:1 YCbCr encoding */ - /* 5 = Rec2020 Non-constant Luminance YCbCr encoding */ - /* 6 = Rec2020 Constant Luminance YCbCr encoding */ - /* 7 = xvYCC with Rec601 YCbCr encoding with Rec709 primaries */ - /* 8 = xvYCC with Rec709 YCbCr encoding with Rec709 primaries */ + /* 1 = RGB Video Level encoding, */ + /* 3 = Rec601 YCbCr encoding, */ + /* 4 = Rec709 1150/60/2:1 YCbCr encoding */ + /* 5 = Rec709 1250/50/2:1 YCbCr encoding */ + /* 6 = Rec2020 Non-constant Luminance YCbCr encoding */ + /* 7 = Rec2020 Constant Luminance YCbCr encoding */ + /* 8 = xvYCC with Rec601 YCbCr encoding with Rec709 primaries */ + /* 9 = xvYCC with Rec709 YCbCr encoding with Rec709 primaries */ /* (We save Video YCbCr as "RGB" space ICC profile) */ - int bt1886; /* 1 to apply BT.1886 black point & effective gamma to input */ - /* 2 to apply BT.1886 black point & technical gamma to input */ + int tvclip; /* Clip rather than extrapolate */ + int bt1886; /* 1 to apply input gamma curve using effective gamma */ + /* 2 to apply input gamma curve using technical gamma */ + double outoprop; /* Proportion of black output offset, 0.0 .. 1.0. 0.0 == BT.1886 */ double egamma; /* effective gamma to ain for */ double tgamma; /* technical gamma to ain for */ bt1886_info bt; /* BT.1886 adjustment info */ double rgb_bk[3]; /* Linear light input RGB black to bend to */ - double bt_bk[3]; /* Input profile bt.1886 modified black point in gamut map space */ double wp[3]; /* Lab/Jab white point for profile used by wphack & xyzscale */ icxLuBase *b2aluo; /* B2A lookup for inking == 7 */ }; typedef struct _profinfo profinfo; @@ -298,7 +338,7 @@ struct _profinfo { struct _clink { /* Overall options */ int verb; - int gamdiag; /* nz, create gammap.wrl diagnostic */ + int gamdiag; /* nz, create gammap diagnostic */ int total, count, last; /* Progress count information */ int mode; /* 0 = simple mode, 1 = mapping mode, 2 = mapping mode with inverse A2B */ int quality; /* 0 = low, 1 = medium, 2 = high, 3 = ultra */ @@ -307,6 +347,7 @@ struct _clink { int dst_kbp; /* nz = Use K only black point as dst gamut black point */ int dst_cmymap; /* masks C = 1, M = 2, Y = 4 to force 100% cusp map */ int tdlut; /* nz = 3DLut output, 1 = eeColor format, 2 = MadVR format */ + /* 3 = .cube format */ icColorSpaceSignature pcsor; /* PCS to use between in & out profiles */ @@ -315,8 +356,10 @@ struct _clink { int cmyhack; /* CMY 100% colorant map though hack, 1 = C, 2 = M, 4 = Y */ rspl *pcs2k; /* PCS L to K' lookup for nhack */ int wphack; /* 0 = off, 1 = hack to map input wp to output wp, 2 = to hwp[] */ + int rgbbkhack; /* 0 = off, 1 = hack to map input bp to output bp (RGB -> RGB only) */ double hwp[3]; /* hack destination white point in PCS space */ int wphacked; /* Operation flag, set nz if white point was translated */ + int bkhacked; /* Operation flag, set nz if black was translated */ int rel_oride; /* Relative override flag */ icmFile *abs_fp; /* Abstract profile transform */ @@ -336,9 +379,7 @@ struct _clink { icxGMappingIntent gmi; gammap *map; /* Gamut mapping */ gammap *Kmap; /* Gamut mapping K in to K out nhack == 2 and K in to K out */ - -// edgepoints *epl; /* Edge point list for fixups when in.tvenc */ - /* we need 2 * di * gres ^ (di-1) entries max. */ + /* Per profile setup information */ profinfo in; @@ -410,6 +451,59 @@ static void l2y_curve(double *out, double *in, int isXYZ) { /* ------------------------------------------- */ +#ifndef NEVER + +/* Clip a value to the RGB Video range 16..235 RGB. */ +/* Clip the incoming value clip[] in place. */ +/* Return the uncliped value in unclipped[] */ +/* Return a bit mask of the channels that have/would clip, */ +/* and the full value in the clip direction in full[]. */ +/* Scale all non-black values to avoid positive clipping and */ +/* Return the restoring scale factor (> 1.0) if this has occured. */ +static int clipVidRGB(double *pscale, double full[3], double unclipped[3], double clip[3]) { + int i, os = 0; + double mx = -1.0, scale = 1.0; + + /* Locate the channel with the largest value */ + for (i = 0; i < 3; i++) { + unclipped[i] = clip[i]; + if (clip[i] > mx) + mx = clip[i]; + } + /* One channel positively clipping */ + if (mx > (235.0/255.0)) { + scale = ((235.0-16.0)/255.0)/(mx - (16.0/255.0)); + + /* Scale all non-black value down towards black, to avoid clipping */ + for (i = 0; i < 3; i++) { + /* Note if channel would clip in itself */ + if (clip[i] > (235.0/255.0)) { + full[i] = 1.0; + os |= (1 << i); + } + if (clip[i] > (16.0/255.0)) + clip[i] = (clip[i] - 16.0/255.0) * scale + 16.0/255.0; + } + } + + /* See if any values negatively clip */ + for (i = 0; i < 3; i++) { + if (clip[i] < (16.0/255.0)) { + clip[i] = (16.0/255.0); + full[i] = 0.0; + os |= (1 << i); + } + } + + scale = 1.0/scale; + if (pscale != NULL) + *pscale = scale; + + return os; +} + +#else + /* Clip a value to the RGB Video range 16..235 RGB */ /* Return a bit mask of the channels that have clipped */ /* Clip the incoming value clip[] in place */ @@ -431,6 +525,7 @@ static int clipVidRGB(double full[3], double unclipped[3], double clip[3]) { } return os; } +#endif /* Clip a value to the YCbCr range range 16..235, 16..240 */ /* Return a bit mask of the channels that have clipped */ @@ -532,12 +627,99 @@ static void xvYCC_fwd_matrix(double *out, double *in) { icmMulBy3x3(out, mat, in); } +/* ======================================================= */ +/* cLUT Input value tweaks to make Video emcoded black land on */ +/* 65 res grid nodes. This should help 33 and 17 res cLUTs too*/ + +/* This also makes the cLUT nodes line up with the eeColor cLUT nodes. */ + +static void VidRGB_to_cLUT65(double out[3], double in[3]) { + int i; + for (i = 0; i < 3; i++) { + if (in[i] <= (236.0/255.0)) /* Scale up to near black point */ + out[i] = in[i] * 255.0/256.0; + else + out[i] = 1.0 - (1.0 - in[i]) * (1.0 - 236.0/256.0) / (1.0 - 236.0/255.0); + } +} + +static void cLUT65_to_VidRGB(double out[3], double in[3]) { + int i; + for (i = 0; i < 3; i++) { + if (in[i] <= (236.0/256.0)) /* Scale up to near black point */ + out[i] = in[i] * 256.0/255.0; + else + out[i] = 1.0 - (1.0 - in[i]) * (1.0 - 236.0/255.0) / (1.0 - 236.0/256.0); + } +} + +static void YCrCb_to_cLUT65(double out[3], double in[3]) { + if (in[0] <= (236.0/255.0)) /* Scale up to near black point */ + out[0] = in[0] * 255.0/256.0; + else + out[0] = 1.0 - (1.0 - in[0]) * (1.0 - 236.0/256.0) / (1.0 - 236.0/255.0); + + if (in[1] <= (240.0/255.0)) + out[1] = in[1] * 255.0/256.0; + else + out[1] = 1.0 - (1.0 - in[1]) * (1.0 - 240.0/256.0) / (1.0 - 240.0/255.0); + + if (in[2] <= (240.0/255.0)) + out[2] = in[2] * 255.0/256.0; + else + out[2] = 1.0 - (1.0 - in[2]) * (1.0 - 240.0/256.0) / (1.0 - 240.0/255.0); +} + +static void cLUT65_to_YCrCb(double out[3], double in[3]) { + if (in[0] <= (236.0/256.0)) /* Scale up to near black point */ + out[0] = in[0] * 256.0/255.0; + else + out[0] = 1.0 - (1.0 - in[0]) * (1.0 - 236.0/255.0) / (1.0 - 236.0/256.0); + + if (in[1] <= (240.0/256.0)) + out[1] = in[1] * 256.0/255.0; + else + out[1] = 1.0 - (1.0 - in[1]) * (1.0 - 240.0/255.0) / (1.0 - 240.0/256.0); + + if (in[2] <= (240.0/256.0)) + out[2] = in[2] * 256.0/255.0; + else + out[2] = 1.0 - (1.0 - in[2]) * (1.0 - 240.0/255.0) / (1.0 - 240.0/256.0); +} + +/* Hmm. I'm not so sure of the one... */ +static void xvYCC_to_cLUT65(double out[3], double in[3]) { + if (in[0] <= (236.0/255.0)) /* Scale up to near black point */ + out[0] = in[0] * 255.0/256.0; + else + out[0] = 1.0 - (1.0 - in[0]) * (1.0 - 236.0/256.0) / (1.0 - 236.0/255.0); + + out[1] = in[1]; + out[2] = in[2]; +} + +static void cLUT65_to_xvYCC(double out[3], double in[3]) { + if (in[0] <= (236.0/256.0)) /* Scale up to near black point */ + out[0] = in[0] * 256.0/255.0; + else + out[0] = 1.0 - (1.0 - in[0]) * (1.0 - 236.0/255.0) / (1.0 - 236.0/256.0); + + out[1] = in[1]; + out[2] = in[2]; +} + /* ======================================================= */ /* Functions called back in setting up the transform table */ #ifdef DEBUGC -static int tt = 0; +int tt = 0; + +#define DEBUGCND DEBUGC + +#else + +# define DEBUGCND /* Define it as empty */ #endif /* DEBUGC */ @@ -545,21 +727,18 @@ static int tt = 0; void devi_devip(void *cntx, double *out, double *in) { int rv = 0; clink *p = (clink *)cntx; - int i, clip = 0; + int i, clip = 0; /* Not preserving video sync when doing video decode in input lut */ double uc[3]; /* Unclipped values (Video) */ double cin[3]; /* clipped input value (Video) */ double full[3]; /* Full value in clip direction (Video) */ #ifdef DEBUGC - if (in[0] == 1.0 && in[1] == 1.0 && in[2] == 1.0 && in[3]) - tt = 1; +// if (in[0] == 1.0 && in[1] == 1.0 && in[2] == 1.0 && in[3]) +// tt = 1; #endif #ifdef DEBUG -#ifdef DEBUGC - DEBUGC -#endif - printf("DevIn->DevIn' got %s\n",icmPdv(p->in.chan, in)); + DEBUGCND printf("DevIn->DevIn' got %s\n",icmPdv(p->in.chan, in)); #endif for (i = 0; i < p->in.chan; i++) @@ -567,22 +746,22 @@ void devi_devip(void *cntx, double *out, double *in) { if (!p->in.nocurve) { /* Using profile per channel curves */ - /* Video encoding decode */ + /* Video decode */ if (p->in.tvenc == 1) { /* Video 16-235 range */ - clip = clipVidRGB(full, uc, out); + clip = clipVidRGB(NULL, full, uc, out); icmCpy3(cin, out); icmVidRGB_2_RGB(out, out); -#ifdef DEBUG -#ifdef DEBUGC - DEBUGC -#endif - printf("After TVdecode:\n",icmPdv(p->in.chan, out)); -#endif - } else if (p->in.tvenc >= 2) { /* YCbCr */ + } else if (p->in.tvenc >= 3) { /* YCbCr */ error("Can't use input curves with YCbCr input encoding"); } +#ifdef DEBUG + if (p->in.tvenc) { + DEBUGCND printf("After TVdecode:\n",icmPdv(p->in.chan, out)); + } +#endif + /* Input curve */ switch(p->in.alg) { case icmMonoFwdType: { icxLuMono *lu = (icxLuMono *)p->in.luo; /* Safe to coerce */ @@ -591,7 +770,10 @@ void devi_devip(void *cntx, double *out, double *in) { } case icmMatrixFwdType: { icxLuMatrix *lu = (icxLuMatrix *)p->in.luo; /* Safe to coerce */ - rv |= lu->fwd_curve(lu, out, out); + if (p->in.bt1886) + bt1886_fwd_curve(&p->in.bt, out, out); + else + rv |= lu->fwd_curve(lu, out, out); break; } case icmLutType: { @@ -606,19 +788,16 @@ void devi_devip(void *cntx, double *out, double *in) { } if (rv >= 2) error("icc lookup failed: %d, %s",p->in.c->errc,p->in.c->err); - - /* Create linear interpolation from clip to full range */ - if (clip && p->in.tvenc) { - for (i = 0; i < 3; i++) { - if (clip & (1 << i)) { - out[i] = out[i] + (uc[i] - cin[i])/(full[i] - cin[i]) * (full[i] - out[i]); - } - } - } +#ifdef DEBUG + DEBUGCND printf("After input curve:\n",icmPdv(p->in.chan, out)); +#endif } if (p->in.lcurve) { /* Apply Y to L* */ y2l_curve(out, out, p->in.lcurve == 2); +#ifdef DEBUG + DEBUGCND printf("After Y -. L* curve:\n",icmPdv(p->in.chan, out)); +#endif } /* eeColor cLUT is fake 65^3 - only 64^3 is usable. This affects */ @@ -629,22 +808,41 @@ void devi_devip(void *cntx, double *out, double *in) { out[i] = out[i] * (p->clutres-2.0)/(p->clutres-1.0); /* This isn't actually usable, because the eeColor does its own YCbCr conversion */ - } else if (p->in.tvenc == 7 || p->in.tvenc == 8) { /* xvYCC */ + } else if (p->in.tvenc == 8 || p->in.tvenc == 9) { /* xvYCC */ out[0] = out[0]; out[1] = (out[1] * (p->clutres-3.0) + 1.0)/(p->clutres-1.0); /* Keep symetrical */ out[2] = (out[2] * (p->clutres-3.0) + 1.0)/(p->clutres-1.0); } } + /* For video encoding, adjust index value vert slightly, */ + /* to align black with grid node. (We assume that the 3DLut HW */ + /* is doing this when there are no input & output curves for 2DLuts) */ + if (p->in.tvenc != 0 + && (p->clutres == 65 + || p->clutres == 33 + || p->clutres == 17)) { + if (p->in.tvenc == 1) { /* Video 16-235 range */ + VidRGB_to_cLUT65(out, out); + } else if (p->in.tvenc == 3 /* Rec601 YCbCr */ + || p->in.tvenc == 4 /* Rec709 1150/60/2:1 YCbCr */ + || p->in.tvenc == 5 /* Rec709 1250/50/2:1 YCbCr */ + || p->in.tvenc == 6 /* Rec2020 Non-constant Luminance YCbCr encoding */ + || p->in.tvenc == 7) { /* Rec2020 Constant Luminance YCbCr encoding */ + YCrCb_to_cLUT65(out, out); + + } else if (p->in.tvenc == 8 /* SD xvYCC with Rec601 YCbCr encoding */ + || p->in.tvenc == 9) { /* HD xvYCC with Rec709 YCbCr encoding */ + // Hmm. Not sure what to do here, and how it interacts with above. + // YCrCb_to_cLUT65(out, out); + } + } + #ifdef DEBUG -#ifdef DEBUGC - DEBUGC -#endif - printf("DevIn->DevIn' ret %s\n",icmPdv(p->in.chan, out)); + DEBUGCND printf("DevIn->DevIn' ret %s\n",icmPdv(p->in.chan, out)); #endif } - /* - - - - - - - - - - - - */ /* clut, DevIn' -> DevOut' */ void devip_devop(void *cntx, double *out, double *in) { @@ -657,18 +855,24 @@ void devip_devop(void *cntx, double *out, double *in) { double konlyness = 0.0; /* Degree of K onlyness */ int ntrig = 0; /* K only output hack triggered */ int cmytrig = 0; /* CMY output hack triggered */ + int rgbbktrig = 0; /* RGB black trigger */ int i, rv = 0; clink *p = (clink *)cntx; - int clip = 0; /* clip mask (Video) */ + int clip = 0; /* clip mask (Video), to pass sync through 3DLut with Video dec/enc */ double cin[3]; /* clipped input value (Video) */ - double uc[3]; /* Unclipped values (Video) */ - double full[3]; /* Full value in clip direction (Video) */ + double uci[3]; /* Unclipped input values (Video) */ + double full[3]; /* Full (0.0/1.0) input value in clip direction (Video) */ + double scale; /* RGB positive clipping scale factor (Video) */ -#ifdef DEBUG #ifdef DEBUGC - DEBUGC + tt = 0; +// if (in[0] == 58.0/64.0 && in[1] == 58.0/64.0 && in[2] == 58.0/64.0) + if (in[0] == 4.0/64.0 && in[1] == 4.0/64.0 && in[2] == 4.0/64.0) + tt = 1; #endif - printf("DevIn'->DevOut' got %s\n",icmPdv(p->in.chan, in)); + +#ifdef DEBUG + DEBUGCND printf("DevIn'->DevOut' got %s\n",icmPdv(p->in.chan, in)); #endif /* Make a copy so we can modify it and are not affected when we write */ @@ -684,61 +888,84 @@ void devip_devop(void *cntx, double *out, double *in) { win[i] = win[i] * (p->clutres-1.0)/(p->clutres-2.0); /* This isn't actually usable, because the eeColor does its own YCbCr conversion */ - } else if (p->in.tvenc == 7 || p->in.tvenc == 8) { /* xvYCC */ + } else if (p->in.tvenc == 8 || p->in.tvenc == 9) { /* xvYCC */ win[0] = win[0]; win[1] = (win[1] * (p->clutres-1.0) - 1.0)/(p->clutres-3.0); win[2] = (win[2] * (p->clutres-1.0) - 1.0)/(p->clutres-3.0); } } + /* For video encoding, adjust index value to align black with */ + /* grid node */ + if (p->in.tvenc != 0 + && (p->clutres == 65 + || p->clutres == 33 + || p->clutres == 17)) { + if (p->in.tvenc == 1) { /* Video 16-235 range */ + cLUT65_to_VidRGB(win, win); + } else if (p->in.tvenc == 3 /* Rec601 YCbCr */ + || p->in.tvenc == 4 /* Rec709 1150/60/2:1 YCbCr */ + || p->in.tvenc == 5 /* Rec709 1250/50/2:1 YCbCr */ + || p->in.tvenc == 6 /* Rec2020 Non-constant Luminance YCbCr encoding */ + || p->in.tvenc == 7) { /* Rec2020 Constant Luminance YCbCr encoding */ + cLUT65_to_YCrCb(win, win); + + } else if (p->in.tvenc == 8 /* SD xvYCC with Rec601 YCbCr encoding */ + || p->in.tvenc == 9) { /* HD xvYCC with Rec709 YCbCr encoding */ + // Hmm. Not sure what to do here, and how it interacts with above. + // YCrCb_to_cLUT65(win, win); + } +#ifdef DEBUG + DEBUGCND printf("After cLUT65 decode: %s\n",icmPdv(p->in.chan, win)); +#endif + } + if (p->in.nocurve) { /* Not using profile per channel curves */ - /* Video encoding decode */ + /* Video encoding decode and input clipping */ + scale = 1.0; if (p->in.tvenc == 1) { /* Video 16-235 range */ - clip = clipVidRGB(full, uc, win); + clip = clipVidRGB(&scale, full, uci, win); icmCpy3(cin, win); icmVidRGB_2_RGB(win, win); - } else if (p->in.tvenc == 2) { /* Rec601 YCbCr */ - clip = clipYCrCb(full, uc, win); + } else if (p->in.tvenc == 3) { /* Rec601 YCbCr */ + clip = clipYCrCb(full, uci, win); icmCpy3(cin, win); icmRecXXX_YCbCr_2_YPbPr(win, win); icmRec601_YPbPr_2_RGBd(win, win); - } else if (p->in.tvenc == 3) { /* Rec709 1150/60/2:1 YCbCr */ - clip = clipYCrCb(full, uc, win); + } else if (p->in.tvenc == 4) { /* Rec709 1150/60/2:1 YCbCr */ + clip = clipYCrCb(full, uci, win); icmCpy3(cin, win); icmRecXXX_YCbCr_2_YPbPr(win, win); icmRec709_YPbPr_2_RGBd(win, win); - } else if (p->in.tvenc == 4) { /* Rec709 1250/50/2:1 YCbCr */ - clip = clipYCrCb(full, uc, win); + } else if (p->in.tvenc == 5) { /* Rec709 1250/50/2:1 YCbCr */ + clip = clipYCrCb(full, uci, win); icmCpy3(cin, win); icmRecXXX_YCbCr_2_YPbPr(win, win); icmRec709_50_YPbPr_2_RGBd(win, win); - } else if (p->in.tvenc == 5) { /* Rec2020 Non-constant Luminance YCbCr encoding */ - clip = clipYCrCb(full, uc, win); + } else if (p->in.tvenc == 6) { /* Rec2020 Non-constant Luminance YCbCr encoding */ + clip = clipYCrCb(full, uci, win); icmCpy3(cin, win); icmRecXXX_YCbCr_2_YPbPr(win, win); icmRec2020_NCL_YPbPr_2_RGBd(win, win); - } else if (p->in.tvenc == 6) { /* Rec2020 Constant Luminance YCbCr encoding */ - clip = clipYCrCb(full, uc, win); + } else if (p->in.tvenc == 7) { /* Rec2020 Constant Luminance YCbCr encoding */ + clip = clipYCrCb(full, uci, win); icmCpy3(cin, win); icmRecXXX_YCbCr_2_YPbPr(win, win); icmRec2020_CL_YPbPr_2_RGBd(win, win); - } else if (p->in.tvenc == 7) { /* SD xvYCC with Rec601 YCbCr encoding */ - clip = clip_xvYCC(full, uc, win); + } else if (p->in.tvenc == 8) { /* SD xvYCC with Rec601 YCbCr encoding */ + clip = clip_xvYCC(full, uci, win); icmCpy3(cin, win); icmRecXXX_YCbCr_2_YPbPr(win, win); icmRec601_YPbPr_2_RGBd(win, win); - } else if (p->in.tvenc == 8) { /* HD xvYCC with Rec709 YCbCr encoding */ - clip = clip_xvYCC(full, uc, win); + } else if (p->in.tvenc == 9) { /* HD xvYCC with Rec709 YCbCr encoding */ + clip = clip_xvYCC(full, uci, win); icmCpy3(cin, win); icmRecXXX_YCbCr_2_YPbPr(win, win); icmRec709_YPbPr_2_RGBd(win, win); } #ifdef DEBUG -#ifdef DEBUGC - DEBUGC -#endif - printf("After TVdecode: %s\n",icmPdv(p->in.chan, win)); + DEBUGCND printf("After TVdecode: %s\n",icmPdv(p->in.chan, win)); #endif } @@ -760,7 +987,7 @@ void devip_devop(void *cntx, double *out, double *in) { ntrig = 1; /* K only output triggered flag */ } else if (p->nhack == 2) { - double maxcmy; /* Comute a degree of source "K onlyness" */ + double maxcmy; /* Compute a degree of source "K onlyness" */ double maxcmyk; maxcmy = win[0]; /* Compute minimum of CMY */ @@ -790,10 +1017,7 @@ void devip_devop(void *cntx, double *out, double *in) { && win[2] < thr) ntrig = 1; /* K only output triggered flag */ #ifdef DEBUG -#ifdef DEBUGC - DEBUGC -#endif - printf("konlyness set to %f\n",konlyness); + DEBUGCND printf("konlyness set to %f\n",konlyness); #endif } @@ -826,13 +1050,22 @@ void devip_devop(void *cntx, double *out, double *in) { } #endif /* ENKHACK */ + /* Handle RGB black to RGB black hack */ + if (p->rgbbkhack != 0) { + double thr = (0.5)/(p->clutres-1.0); /* Match threshold */ + + if (win[0] < thr + && win[1] < thr + && win[2] < thr) { + rgbbktrig = 1; + p->bkhacked++; + } + } + if (p->in.lcurve) { /* Apply L* to Y */ l2y_curve(win, win, p->in.lcurve == 2); #ifdef DEBUG -#ifdef DEBUGC - DEBUGC -#endif - printf("win[] set to L* value %s\n",icmPdv(p->in.chan, win)); + DEBUGCND printf("win[] set to L* value %s\n",icmPdv(p->in.chan, win)); #endif } @@ -856,35 +1089,37 @@ void devip_devop(void *cntx, double *out, double *in) { if (p->in.nocurve) { /* No explicit curve, so do implicit here */ - if (p->in.tvenc == 7 || p->in.tvenc == 8) { /* xvYCC */ - xvYCC_fwd_curve(pcsv, win); /* Allow for overrange values */ + if (p->in.tvenc == 8 || p->in.tvenc == 9) { /* xvYCC */ + if (p->in.bt1886) + bt1886_fwd_curve(&p->in.bt, pcsv, win); + else + xvYCC_fwd_curve(pcsv, win); /* Allow for overrange values */ xvYCC_fwd_matrix(pcsv, pcsv); /* Rec709 primaries */ } else { - rv |= lu->fwd_curve(lu, pcsv, win); + if (p->in.bt1886) + bt1886_fwd_curve(&p->in.bt, pcsv, win); + else + rv |= lu->fwd_curve(lu, pcsv, win); rv |= lu->fwd_matrix(lu, pcsv, pcsv); } } else { - if (p->in.tvenc == 7 || p->in.tvenc == 8) /* xvYCC */ + if (p->in.tvenc == 8 || p->in.tvenc == 9) /* xvYCC */ xvYCC_fwd_matrix(pcsv, pcsv); /* Rec709 primaries */ else rv |= lu->fwd_matrix(lu, pcsv, win); } #ifdef DEBUG -#ifdef DEBUGC - DEBUGC -#endif - printf("After matrix PCS' XYZ %s Lab %s\n",icmPdv(p->in.chan, pcsv), icmPLab(pcsv)); + DEBUGCND printf("After matrix PCS' XYZ %s Lab %s\n",icmPdv(p->in.chan, pcsv), icmPLab(pcsv)); #endif if (p->in.bt1886) { - bt1886_apply(&p->in.bt, plu, pcsv, pcsv); + bt1886_wp_adjust(&p->in.bt, pcsv, pcsv); #ifdef DEBUG -#ifdef DEBUGC - DEBUGC -#endif - printf("After bt1886 PCS' XYZ %s Lab %s\n",icmPdv(p->in.chan, pcsv), icmPLab(pcsv)); + DEBUGCND printf("After bt1886 PCS' XYZ %s Lab %s\n",icmPdv(p->in.chan, pcsv), icmPLab(pcsv)); #endif - } + } + rv |= lu->fwd_abs(lu, pcsv, pcsv); + break; } case icmLutType: { @@ -919,10 +1154,7 @@ void devip_devop(void *cntx, double *out, double *in) { //printf("~1 copied win to locus\n"); } #ifdef DEBUG -#ifdef DEBUGC - DEBUGC -#endif - printf("Got possible K %s of %f %f %f %f\n",p->out.locus ? "locus" : "value", locus[0],locus[1],locus[2],locus[3]); + DEBUGCND printf("Got possible K %s of %f %f %f %f\n",p->out.locus ? "locus" : "value", locus[0],locus[1],locus[2],locus[3]); #endif } rv |= lu->output(lu, pcsv, pcsv); /* PCS' -> */ @@ -951,14 +1183,11 @@ void devip_devop(void *cntx, double *out, double *in) { * The order to do this intermediate processing is hard to figure out, * as is the interaction between such elements. How should the * abstract profile be properly handled ? - * what should we do if the wphack is on and Y scaling is on ? + * what should we do if the wphack/rgbbkhack is on and Y scaling is on ? */ #ifdef DEBUG -#ifdef DEBUGC - DEBUGC -#endif - printf("PCS before map %f %f %f\n",pcsv[0], pcsv[1], pcsv[2]); + DEBUGCND printf("PCS before map %f %f %f\n",pcsv[0], pcsv[1], pcsv[2]); #endif if (p->wphack) { @@ -1023,10 +1252,7 @@ void devip_devop(void *cntx, double *out, double *in) { //printf("scaled PCS %f %f %f\n",pcsv[0], pcsv[1], pcsv[2]); #ifdef DEBUG -#ifdef DEBUGC - DEBUGC -#endif - printf("PCS after Y scale %f %f %f\n",pcsv[0], pcsv[1], pcsv[2]); + DEBUGCND printf("PCS after Y scale %f %f %f\n",pcsv[0], pcsv[1], pcsv[2]); #endif } @@ -1052,10 +1278,7 @@ void devip_devop(void *cntx, double *out, double *in) { } #ifdef DEBUG -#ifdef DEBUGC - DEBUGC -#endif - printf("PCS after map0 %f %f %f map1 %f %f %f\n", map0[0], map0[1], map0[2], map1[0], map1[1], map1[2]); + DEBUGCND printf("PCS after map0 %f %f %f map1 %f %f %f\n", map0[0], map0[1], map0[2], map1[0], map1[1], map1[2]); #endif /* Normal gamut mapping */ @@ -1067,10 +1290,7 @@ void devip_devop(void *cntx, double *out, double *in) { #ifdef DEBUG -#ifdef DEBUGC - DEBUGC -#endif - printf("PCS after map %f %f %f\n",pcsvm[0], pcsvm[1], pcsvm[2]); + DEBUGCND printf("PCS after map %f %f %f\n",pcsvm[0], pcsvm[1], pcsvm[2]); #endif } else { pcsvm[0] = pcsv[0]; @@ -1096,10 +1316,7 @@ void devip_devop(void *cntx, double *out, double *in) { /* mapping properly. */ p->abs_luo->lookup(p->abs_luo, pcsvm, pcsvm); #ifdef DEBUG -#ifdef DEBUGC - DEBUGC -#endif - printf("PCS after abstract %f %f %f\n",pcsvm[0], pcsvm[1], pcsvm[2]); + DEBUGCND printf("PCS after abstract %f %f %f\n",pcsvm[0], pcsvm[1], pcsvm[2]); #endif } @@ -1131,17 +1348,15 @@ void devip_devop(void *cntx, double *out, double *in) { locus[i] = tdevv[i]; } #ifdef DEBUG -#ifdef DEBUGC - DEBUGC -#endif - printf("Got possible K %s of %f %f %f %f\n",p->out.locus ? "locus" : "value", locus[0],locus[1],locus[2],locus[3]); + DEBUGCND printf("Got possible K %s of %f %f %f %f\n",p->out.locus ? "locus" : "value", locus[0],locus[1],locus[2],locus[3]); #endif } /* Do PCS -> DevOut' */ if (p->nhack == 3 /* All to K only */ || ntrig /* Neutral or K only to K only hack has triggered */ - || cmytrig) { /* 100% CMY rough hack has triggered */ + || cmytrig /* 100% CMY rough hack has triggered */ + || rgbbktrig) { /* RGB black inpu thas triggered */ if (p->nhack == 3 || ntrig) { /* Neutral to K only hack has triggered */ co pp; @@ -1183,8 +1398,11 @@ void devip_devop(void *cntx, double *out, double *in) { printf("CMY hack mapped %s to %s\n",icmPdv(p->in.chan, win), icmPdv(p->out.chan, out)); fflush(stdout); } + } else if (rgbbktrig) { + out[0] = out[1] = out[2] = 0.0; } - } else { /* Neutral to K hack has NOT triggered */ + } else { /* Various hacks haven't triggered */ + switch(p->out.alg) { case icmMonoBwdType: { icxLuMono *lu = (icxLuMono *)p->out.luo; /* Safe to coerce */ @@ -1229,10 +1447,7 @@ void devip_devop(void *cntx, double *out, double *in) { #endif #ifdef DEBUG -#ifdef DEBUGC - DEBUGC -#endif - printf("Calling inv_clut with K aux targets %f %f %f %f and pcsvm %f %f %f %f\n", + DEBUGCND printf("Calling inv_clut with K aux targets %f %f %f %f and pcsvm %f %f %f %f\n", locus[0],locus[1],locus[2],locus[3],pcsvm[0],pcsvm[1],pcsvm[2],pcsvm[3]); #endif @@ -1243,10 +1458,7 @@ void devip_devop(void *cntx, double *out, double *in) { rv |= lu->inv_clut(lu, out, pcsvm); #ifdef DEBUG -#ifdef DEBUGC - DEBUGC -#endif - printf("Got result %f %f %f %f\n", out[0],out[1],out[2],out[3]); + DEBUGCND printf("Got result %f %f %f %f\n", out[0],out[1],out[2],out[3]); #endif @@ -1266,31 +1478,22 @@ void devip_devop(void *cntx, double *out, double *in) { if (p->cal != NULL && p->addcal == 1 && p->out.nocurve) { #ifdef DEBUG -#ifdef DEBUGC - DEBUGC -#endif - printf("DevOut' before cal curve %s\n\n",icmPdv(p->out.chan, out)); + DEBUGCND printf("DevOut' before cal curve %s\n\n",icmPdv(p->out.chan, out)); #endif p->cal->interp(p->cal, out, out); } if (p->out.lcurve) { /* Apply Y to L* */ #ifdef DEBUG -#ifdef DEBUGC - DEBUGC -#endif - printf("DevOut' before y2l_curve %s\n\n",icmPdv(p->out.chan, out)); + DEBUGCND printf("DevOut' before y2l_curve %s\n\n",icmPdv(p->out.chan, out)); #endif y2l_curve(out, out, p->out.lcurve == 2); } - /* Video encoding encode */ - if (p->out.tvenc) { + /* Video encode */ + if (p->out.nocurve && p->out.tvenc) { #ifdef DEBUG -#ifdef DEBUGC - DEBUGC -#endif - printf("DevOut' before TVenc %s\n\n",icmPdv(p->out.chan, out)); + DEBUGCND printf("DevOut' before TVenc %s\n",icmPdv(p->out.chan, out)); #endif for (i = 0; i < p->out.chan; i++) { if (out[i] < 0.0) @@ -1300,63 +1503,90 @@ void devip_devop(void *cntx, double *out, double *in) { } if (p->out.tvenc == 1) { /* Video 16-235 range */ icmRGB_2_VidRGB(out, out); - } else if (p->out.tvenc == 2) { /* Rec601 YCbCr */ + } else if (p->out.tvenc == 3) { /* Rec601 YCbCr */ icmRec601_RGBd_2_YPbPr(out, out); icmRecXXX_YPbPr_2_YCbCr(out, out); - } else if (p->out.tvenc == 3) { /* Rec709 1150/60/2:1 YCbCr */ + } else if (p->out.tvenc == 4) { /* Rec709 1150/60/2:1 YCbCr */ icmRec709_RGBd_2_YPbPr(out, out); icmRecXXX_YPbPr_2_YCbCr(out, out); - } else if (p->out.tvenc == 4) { /* Rec709 1250/50/2:1 YCbCr */ + } else if (p->out.tvenc == 5) { /* Rec709 1250/50/2:1 YCbCr */ icmRec709_50_RGBd_2_YPbPr(out, out); icmRecXXX_YPbPr_2_YCbCr(out, out); - } else if (p->out.tvenc == 5) { /* Rec2020 Non-constant Luminance YCbCr encoding */ + } else if (p->out.tvenc == 6) { /* Rec2020 Non-constant Luminance YCbCr encoding */ icmRec2020_NCL_RGBd_2_YPbPr(out, out); icmRecXXX_YPbPr_2_YCbCr(out, out); - } else if (p->out.tvenc == 6) { /* Rec2020 Constant Luminance YCbCr encoding */ + } else if (p->out.tvenc == 7) { /* Rec2020 Constant Luminance YCbCr encoding */ icmRec2020_CL_RGBd_2_YPbPr(out, out); icmRecXXX_YPbPr_2_YCbCr(out, out); } #ifdef NEVER - else if (p->out.tvenc == 7) { /* SD xvYCC with Rec601 YCbCr encoding */ + else if (p->out.tvenc == 8) { /* SD xvYCC with Rec601 YCbCr encoding */ icmRec601_RGBd_2_YPbPr(out, out); icmRecXXX_YPbPr_2_YCbCr(out, out); - } else if (p->out.tvenc == 8) { /* HD xvYCC with Rec709 YCbCr encoding */ + } else if (p->out.tvenc == 9) { /* HD xvYCC with Rec709 YCbCr encoding */ icmRec709_RGBd_2_YPbPr(out, out); icmRecXXX_YPbPr_2_YCbCr(out, out); } #endif /* NEVER */ + +#ifdef DEBUG + DEBUGCND printf("DevOut' after TVenc %s\n",icmPdv(p->out.chan, out)); +#endif } - /* Create linear interpolation from clip to full range */ - if (clip && p->out.tvenc) { - for (i = 0; i < 3; i++) { - if (clip & (1 << i)) { -#ifdef LINTERP_OR - /* Linear interpolate overrange to full */ -//printf("~1 clip[%d] = out %f + (uc %f - cin %f)/(full %f - cin %f) * (full %f - out %f) = ", -//i, out[i], uc[i], cin[i], full[i], cin[i], full[i], out[i]); - out[i] = out[i] + (uc[i] - cin[i])/(full[i] - cin[i]) * (full[i] - out[i]); -//printf("%f\n",out[i]); -#else - double ifull = 1.0 - full[i]; /* Opposite limit to full */ + if (clip && p->out.nocurve && p->out.tvenc) { - /* Do simple extrapolation (Not perfect though) */ - out[i] = ifull + (out[i] - ifull) * (uc[i] - ifull)/(cin[i] - ifull); + /* For RGB encoding, unscale +ve clip to preserve hue */ + if (p->out.tvenc == 1) { /* RGB Video 16-235 range */ - if (out[i] < 0.0 || out[i] > 1.0 /* clip */ - || fabs(uc[i] - full[i]) < 1e-6) /* or input is at sync level */ - out[i] = full[i]; -#endif + if (!p->in.tvclip && scale > 1.0) { /* We got +ve clipping */ + + /* Re-scale all non-black values */ + for (i = 0; i < 3; i++) { + if (out[i] > (16.0/255.0)) + out[i] = (out[i] - 16.0/255.0) * scale + 16.0/255.0; + } + } + + /* Deal with -ve clipping and sync */ + for (i = 0; i < 3; i++) { + if (clip & (1 << i)) { + + if (full[i] == 0.0) { /* Only extrapolate in black direction */ + double ifull = 1.0 - full[i]; /* Opposite limit to full */ + + /* Do simple extrapolation (Not perfect though) */ + out[i] = ifull + (out[i] - ifull) * (uci[i] - ifull)/(cin[i] - ifull); + } + + /* Clip or pass sync through */ + if (out[i] < 0.0 || out[i] > 1.0 /* clip */ + || fabs(uci[i] - full[i]) < 1e-6) /* or input is at sync level */ + out[i] = full[i]; + } + } + + /* For YCrCb, do simple linear extrapolation of out of range input. */ + /* (Note we should really change this to preserve hue instead !) */ + } else { + for (i = 0; i < 3; i++) { + if (clip & (1 << i)) { + double ifull = 1.0 - full[i]; /* Opposite limit to full */ + + /* Do simple extrapolation (Not perfect though) */ + out[i] = ifull + (out[i] - ifull) * (uci[i] - ifull)/(cin[i] - ifull); + + if (out[i] < 0.0 || out[i] > 1.0 /* clip */ + || fabs(uci[i] - full[i]) < 1e-6) /* or input is at sync level */ + out[i] = full[i]; + } } } } #ifdef DEBUG -#ifdef DEBUGC - DEBUGC -#endif - printf("DevIn'->DevOut' ret %s\n\n",icmPdv(p->out.chan, out)); + DEBUGCND printf("DevIn'->DevOut' ret %s\n\n",icmPdv(p->out.chan, out)); #endif @@ -1376,35 +1606,28 @@ void devip_devop(void *cntx, double *out, double *in) { void devop_devo(void *cntx, double *out, double *in) { int rv = 0; clink *p = (clink *)cntx; - int i, clip = 0; + int i, clip = 0; /* Not preserving video sync when doing video decode in input lut */ double uc[3]; /* Unclipped values (Video) */ double cin[3]; /* clipped input value (Video) */ double full[3]; /* Full value in clip direction (Video) */ #ifdef DEBUG -#ifdef DEBUGC - DEBUGC -#endif - printf("DevOut'->DevOut got %s\n",icmPdv(p->out.chan, in)); + DEBUGCND printf("DevOut'->DevOut got %s\n",icmPdv(p->out.chan, in)); #endif for (i = 0; i < p->out.chan; i++) out[i] = in[i]; - if (p->out.lcurve) /* Apply L* to Y */ + if (p->out.lcurve) { /* Apply L* to Y */ l2y_curve(out, out, p->out.lcurve == 2); +#ifdef DEBUG + DEBUGCND printf("After L*->Y curve %s\n",icmPdv(p->out.chan, out)); +#endif + } - if (p->out.nocurve == 0) { /* Using per channel curves */ - - /* Video encoding decode */ - if (p->out.tvenc == 1) { /* Video 16-235 range */ - clip = clipVidRGB(full, uc, out); - icmCpy3(cin, out); - icmVidRGB_2_RGB(out, out); - } else if (p->out.tvenc >= 2) { /* YCbCr */ - error("Can't use output curves with YCbCr output encoding"); - } + if (!p->out.nocurve) { /* Using per channel output curves */ + /* Apply output curve */ switch(p->out.alg) { case icmMonoBwdType: { icxLuMono *lu = (icxLuMono *)p->out.luo; /* Safe to coerce */ @@ -1435,34 +1658,34 @@ void devop_devo(void *cntx, double *out, double *in) { if (rv >= 2) error("icc lookup failed: %d, %s",p->in.c->errc,p->in.c->err); +#ifdef DEBUG + DEBUGCND printf("After output curve %s\n",icmPdv(p->out.chan, out)); +#endif + /* Apply calibration curve */ if (p->cal != NULL && p->addcal == 1) { p->cal->interp(p->cal, out, out); +#ifdef DEBUG + DEBUGCND printf("After calibration curve %s\n",icmPdv(p->out.chan, out)); +#endif } - /* Video encoding encode */ + /* Apply Video encoding */ if (p->out.tvenc == 1) { /* Video 16-235 range */ icmRGB_2_VidRGB(out, out); } - - /* Create linear interpolation from clip to full range */ - if (clip && p->out.tvenc) { - for (i = 0; i < 3; i++) { - if (clip & (1 << i)) { - out[i] = out[i] + (uc[i] - cin[i])/(full[i] - cin[i]) * (full[i] - out[i]); - } - } +#ifdef DEBUG + if (p->out.tvenc != 0) { + DEBUGCND printf("After Video encode %s\n",icmPdv(p->out.chan, out)); } +#endif + } #ifdef DEBUG -#ifdef DEBUGC - DEBUGC -#endif - printf("DevOut'->DevOut ret %s\n",icmPdv(p->out.chan, out)); + DEBUGCND printf("DevOut'->DevOut ret %s\n",icmPdv(p->out.chan, out)); #endif #ifdef DEBUGC tt = 0; #endif -//printf("DevOut'->DevOut ret %s\n",icmPdv(p->out.chan, out)); } /* ------------------------------------------- */ @@ -1499,7 +1722,9 @@ static double xyzoptfunc(void *cntx, double *v) { clink *p = (clink *)cntx; double swxyz[3], jab[3], dev[MAX_CHAN]; double rv; - int rc = 0; + int j, rc = 0; + +//printf("~1 xyzoptfunc %f\n", v[0]); rv = 2.0 - v[0]; /* Make Y as large as possible */ @@ -1531,18 +1756,21 @@ static double xyzoptfunc(void *cntx, double *v) { switch(p->out.alg) { case icmMonoBwdType: { icxLuMono *lu = (icxLuMono *)p->out.luo; /* Safe to coerce */ +//printf("~1 Mono\n"); rc = lu->bwd_lookup(p->out.luo, dev, jab); break; } case icmMatrixBwdType: { icxLuMatrix *lu = (icxLuMatrix *)p->out.luo; /* Safe to coerce */ +//printf("~1 Matrix\n"); rc = lu->bwd_lookup(p->out.luo, dev, jab); break; } case icmLutType: { icxLuLut *lu = (icxLuLut *)p->out.luo; /* Safe to coerce */ +//printf("~1 Lut\n"); if (p->mode < 2) /* Using B2A table */ rc = lu->lookup(p->out.luo, dev, jab); @@ -1553,9 +1781,16 @@ static double xyzoptfunc(void *cntx, double *v) { default: error("Unexpected algorithm type %d in devop of devip_devop()",p->out.alg); } -//printf("~1 device = %f %f %f, rc = %d\n", dev[0], dev[1], dev[2], rc); +//printf("~1 in chan %d\n", p->out.luo->inputChan); +//printf("~1 device = %s, rc = %d\n", icmPdv(p->out.luo->inputChan, dev), rc); + /* Matrix power curves don't clip on device space out of range, */ + /* so check explicitly as well. */ + for (j = 0; j < p->out.luo->inputChan; j++) { + if (dev[j] < 0.0 || dev[j] > 1.0) + rc |= 1; + } if (rc != 0) - rv += 500.0; + rv += 10.0; //printf("~1 xyzoptfunc rv %f from xyzscale %f\n\n",rv,v[0]); return rv; @@ -1564,11 +1799,13 @@ static double xyzoptfunc(void *cntx, double *v) { /* ------------------------------------------- */ int write_eeColor1DinputLuts(clink *li, char *tdlut_name); -int write_eeColor3DLut(icc *icc, char *fname); +int write_eeColor3DLut(icc *icc, clink *li, char *fname); int write_eeColor1DoutputLuts(clink *li, char *tdlut_name); int write_MadVR_3DLut(clink *li, icc *icc, char *fname); +int write_cube_3DLut(clink *li, icc *icc, char *fname); + int main(int argc, char *argv[]) { int fa, nfa, mfa; /* argument we're looking at */ @@ -1626,8 +1863,9 @@ main(int argc, char *argv[]) { li.in.nocurve = 0; /* Preserve device linearisation curve */ li.in.lcurve = 0; /* Don't apply a Y to L* curve after device curve */ li.in.tvenc = -1; - li.in.egamma = 2.2; /* Default effective gamma */ - li.in.tgamma = 2.4; /* Default technical gamma */ + li.in.outoprop = 0.0; /* Default BT.1886 syle input offset */ + li.in.egamma = 2.2; /* Default effective gamma value */ + li.in.tgamma = 2.4; /* Default technical gamma value */ li.out.intent = icmDefaultIntent; /* Default */ li.out.ink.tlimit = -1.0; /* Default no total limit */ li.out.ink.klimit = -1.0; /* Default no black limit */ @@ -1728,8 +1966,19 @@ main(int argc, char *argv[]) { /* Disable profile per channel curve use in device link output */ else if (argv[fa][1] == 'n') { - li.in.nocurve = 1; - li.out.nocurve = 1; + if (na != NULL) { /* Found an optional individual disable */ + fa = nfa; + if (na[0] == 'i') + li.in.nocurve = 1; + else if (na[0] == 'o') + li.out.nocurve = 1; + else + usage("Unexpected argument '%c' to -n flag",na[0]); + + } else { + li.in.nocurve = 1; + li.out.nocurve = 1; + } } /* Hack to force input neutrals to K only output */ @@ -1853,6 +2102,12 @@ main(int argc, char *argv[]) { usage("Couldn't parse hack white point (-w) value '%s'",na); } } + + /* RGB->RGB black hack */ + else if (argv[fa][1] == 'b') { + li.rgbbkhack = 1; + } + /* Input profile Intent or Mapping mode intent */ else if (argv[fa][1] == 'i') { fa = nfa; @@ -1959,7 +2214,7 @@ main(int argc, char *argv[]) { if (sscanf(na+1,":%lf:%lf:%lf",&x,&y,&z) == 3) { vc->Wxyz[0] = x; vc->Wxyz[1] = y; vc->Wxyz[2] = z; } else if (sscanf(na+1,":%lf:%lf",&x,&y) == 2) { - vc->Wxyz[0] = x; vc->Wxyz[1] = y; + vc->Wxyz[0] = x; vc->Wxyz[1] = y; vc->Wxyz[2] = -1; } else usage("Viewing condition (-%cw) unrecognised white point '%s'",argv[fa][1],na+1); } else if (na[0] == 'a' || na[0] == 'A') { @@ -1977,15 +2232,15 @@ main(int argc, char *argv[]) { } else if (na[0] == 'f' || na[0] == 'F') { if (na[1] != ':') usage("Viewing conditions (-cf) missing ':'"); - vc->Yf = atof(na+2); + vc->Yf = atof(na+2)/100.0; } else if (na[0] == 'g' || na[0] == 'G') { double x, y, z; if (sscanf(na+1,":%lf:%lf:%lf",&x,&y,&z) == 3) { vc->Gxyz[0] = x; vc->Gxyz[1] = y; vc->Gxyz[2] = z; } else if (sscanf(na+1,":%lf:%lf",&x,&y) == 2) { - vc->Gxyz[0] = x; vc->Gxyz[1] = y; + vc->Gxyz[0] = x; vc->Gxyz[1] = y; vc->Gxyz[2] = -1; } else if (sscanf(na+1,":%lf",&x) == 1) { - vc->Yf = x/100.0; + vc->Yg = x/100.0; } else usage("Viewing condition (-%cf) unrecognised flare '%s'",argv[fa][1],na+1); } else @@ -2141,6 +2396,9 @@ main(int argc, char *argv[]) { case 'm': li.tdlut = 2; break; + case 'c': + li.tdlut = 3; + break; default: usage("3DLut format (-3) argument '%s' not recognised",na); } @@ -2148,24 +2406,51 @@ main(int argc, char *argv[]) { /* Intent modifier */ else if (argv[fa][1] == 'I') { - double gamma = 0.0; fa = nfa; if (na == NULL) usage("Intent modifier flag (-I) needs an argument"); switch (na[0]) { case 'b': - li.in.bt1886 = 1; - if (sscanf(na+1,":%lf",&gamma) == 1) - li.in.egamma = gamma; - break; case 'B': - li.in.bt1886 = 2; - if (sscanf(na+1,":%lf",&gamma) == 1) - li.in.tgamma = gamma; + case 'g': + case 'G': { + double outoprop = -1.0, gamma = -1.0; + + if (na[0] == 'b' || na[0] == 'B') + li.in.outoprop = 0.0; + else if (na[0] == 'g' || na[0] == 'G') + li.in.outoprop = 1.0; + + if (sscanf(na+1,":%lf:%lf",&outoprop, &gamma) != 2) { + outoprop = -1.0; + if (sscanf(na+1,":%lf",&gamma) != 1) + gamma = -1.0; + } + + if (outoprop != -1.0) { + if (outoprop < 0.0 || outoprop > 1.0) + usage("Intent modifier -I%c expects output proportion in range 0.0 and 1.0",na[0]); + li.in.outoprop = outoprop; + } + + if (gamma != -1.0 && (gamma <= 0.0 || gamma > 4.0)) + usage("Intent modifier -I%c expects gamma value between 0.0 and 4.0",na[0]); + if (na[0] == 'b' || na[0] == 'g') { + li.in.bt1886 = 1; + if (gamma != -1.0) { + li.in.egamma = gamma; + } + } else if (na[0] == 'B' || na[0] == 'G') { + li.in.bt1886 = 2; + if (gamma != -1.0) { + li.in.tgamma = gamma; + } + } + break; + } default: - if (gamma == 0.0) - usage("Intent modifier (-I) argument '%s' not recognised",na); + usage("Intent modifier (-I) argument '%s' not recognised",na); } } @@ -2181,29 +2466,35 @@ main(int argc, char *argv[]) { case 't': /* TV 16 .. 235 */ enc = 1; break; - case '6': /* Rec601 YCbCr */ - enc = 2; + case 'T': /* TV 16 .. 235 Clip */ + if (argv[fa][1] == 'E') + usage("Video encoding (-E) argument T not valid"); + enc = 1; + li.in.tvclip = 1; break; - case '7': /* Rec709 1150/60/2:1 YCbCr (HD) */ + case '6': /* Rec601 YCbCr */ enc = 3; break; - case '5': /* Rec709 1250/50/2:1 YCbCr (HD) */ + case '7': /* Rec709 1150/60/2:1 YCbCr (HD) */ enc = 4; break; - case '2': /* Rec2020 Non-constant Luminance YCbCr (UHD) */ + case '5': /* Rec709 1250/50/2:1 YCbCr (HD) */ enc = 5; break; - case 'C': /* Rec2020 Constant Luminance YCbCr (UHD) */ + case '2': /* Rec2020 Non-constant Luminance YCbCr (UHD) */ enc = 6; break; - case 'x': /* xvYCC Rec601 YCbCr encoding (SD) */ + case 'C': /* Rec2020 Constant Luminance YCbCr (UHD) */ enc = 7; break; - case 'X': /* xvYCC Rec709 YCbCr encoding (HD) */ + case 'x': /* xvYCC Rec601 YCbCr encoding (SD) */ enc = 8; break; + case 'X': /* xvYCC Rec709 YCbCr encoding (HD) */ + enc = 9; + break; default: - usage("Video encoding (-E) argument not recognised"); + usage("Video encoding (-%c) argument '%c' not recognised",argv[fa][1],na[0]); } if (argv[fa][1] == 'e') li.in.tvenc = enc; @@ -2222,6 +2513,18 @@ main(int argc, char *argv[]) { break; } +#ifdef NEVER + if (li.in.bt1886) { + printf("~1 bt1886 flag = %d\n",li.in.bt1886); + + printf("~1 outoprop = %f\n",li.in.outoprop); + if (li.in.bt1886 == 2) + printf("~1 tgamma = %f\n",li.in.tgamma); + else + printf("~1 egamma = %f\n",li.in.egamma); + } +#endif + if (fa >= argc || argv[fa][0] == '-') usage("Missing input profile"); strncpy(in_name,argv[fa++],MAXNAMEL); in_name[MAXNAMEL] = '\000'; @@ -2250,6 +2553,15 @@ main(int argc, char *argv[]) { xl = tdlut_name + strlen(tdlut_name); strcpy(xl,".3dlut"); + if (li.clutres == 0) + li.clutres = 65; /* This is good for video encoding levels */ + + } else if (li.tdlut == 3) { /* .cube */ + strncpy(tdlut_name,link_name,MAXNAMEL-6); tdlut_name[MAXNAMEL-6] = '\000'; + if ((xl = strrchr(tdlut_name, '.')) == NULL) /* Figure where extention is */ + xl = tdlut_name + strlen(tdlut_name); + strcpy(xl,".cube"); + if (li.clutres == 0) li.clutres = 65; /* This is good for video encoding levels */ } @@ -2263,7 +2575,7 @@ main(int argc, char *argv[]) { li.out.tvenc = 0; /* Need to allow spec. of gamut/matrix for xvYCC & bt.1886 */ - if (li.out.tvenc == 7 || li.out.tvenc == 8) { /* xvYCC */ + if (li.out.tvenc == 8 || li.out.tvenc == 9) { /* xvYCC */ usage("xvYCC output encoding is not supported"); } @@ -2291,7 +2603,7 @@ main(int argc, char *argv[]) { if (li.in.bt1886) { if (li.mode == 0) { /* Simple mode */ if (li.in.intent == icmDefaultIntent) { - warning("Setting BT.1886 input intent to Relative Colorimetric"); + warning("Setting BT.1886/Abs power input intent to Relative Colorimetric"); li.in.intent = icRelativeColorimetric; } else if (li.in.intent != icRelativeColorimetric && li.in.intent != icAbsoluteColorimetric) { @@ -2299,7 +2611,7 @@ main(int argc, char *argv[]) { } if (li.out.intent == icmDefaultIntent) { - warning("Setting BT.1886 output intent to Relative Colorimetric"); + warning("Setting BT.1886/Abs power output intent to Relative Colorimetric"); li.out.intent = icRelativeColorimetric; } else if (li.out.intent != icRelativeColorimetric && li.out.intent != icAbsoluteColorimetric) { @@ -2307,7 +2619,7 @@ main(int argc, char *argv[]) { } } else { if (!intentset) { - warning("Setting BT.1886 intent to Relative Colorimetric"); + warning("Setting BT.1886/Abs power intent to Relative Colorimetric"); if (xicc_enum_gmapintent(&li.gmi, icxNoGMIntent, "r") == -999) error("Internal - intent 'r' isn't recognised"); } @@ -2327,6 +2639,7 @@ main(int argc, char *argv[]) { /* eeColor format. Currently we assume no input or output curves, */ /* even though it's technically possible to use them */ if (li.tdlut == 1) { + int inc; if (li.in.nocurve == 0) { warning("Disabling input curves for eeColor 3DLut creation"); @@ -2353,6 +2666,19 @@ main(int argc, char *argv[]) { li.out.nocurve = 1; } } + + /* .cube format. It doesn't support in and out per channel curves */ + else if (li.tdlut == 3) { + + if (li.in.nocurve == 0) { + warning("Disabling input curves for .cube 3DLut creation"); + li.in.nocurve = 1; + } + if (li.out.nocurve == 0) { + warning("Disabling output curves for .cube 3DLut creation"); + li.out.nocurve = 1; + } + } } /* - - - - - - - - - - - - - - - - - - - */ @@ -3172,6 +3498,17 @@ main(int argc, char *argv[]) { error("Output profile must be RGB to output MadVR 3DLut"); } + /* .cube format. */ + else if (li.tdlut == 3) { + + if (li.in.csp != icSigRgbData) + error("Input profile must be RGB to output .cube 3DLut"); + + if (li.out.csp != icSigRgbData) + error("Output profile must be RGB to output .cube 3DLut"); + } + + if (li.in.tvenc) { if (li.in.csp != icSigRgbData) error("Input profile must be RGB to use video encoding option"); @@ -3182,95 +3519,6 @@ main(int argc, char *argv[]) { } } - /* Do sanity check and setup for BT.1886 gamma mapping */ - if (li.in.bt1886) { - bt1886_setnop(&li.in.bt); - } - if (li.in.bt1886 == 1 || li.in.bt1886 == 2) { /* If doing BT.1886 black point mapping */ - icxLuBase *oluo; /* Output fwd lookup */ - icxLuMatrix *lu; /* Input profile lookup */ - icmLuMatrix *plu; /* Input profile lookup */ - double bp[3], rgb[3]; - - /* Check input profile is an RGB matrix profile */ - if (li.in.alg != icmMatrixFwdType - || li.in.csp != icSigRgbData) - error("BT.1886 mode only works with an RGB matrix input profile"); - - lu = (icxLuMatrix *)li.in.luo; /* Safe to coerce - we have checked it's matrix. */ - plu = (icmLuMatrix *)lu->plu; - - if ((oluo = li.out.x->get_luobj(li.out.x, ICX_CLIP_NEAREST, icmFwd, icRelativeColorimetric, - icSigXYZData, icmLuOrdNorm, &li.out.vc, &li.out.ink)) == NULL) { - error("get xlookup object failed: %d, %s",li.out.x->errc,li.out.x->err); - } - /* We're assuming that the input space has a perfect black point... */ - - /* Lookup the ouput black point in XYZ PCS.*/ - bp[0] = bp[1] = bp[2] = 0.0; - oluo->lookup(oluo, bp, bp); - - if (li.in.bt1886 == 1) { /* Using effective gamma */ - li.in.tgamma = xicc_tech_gamma(li.in.egamma, bp[1]); - if (li.verb) - printf("Technical gamma %f used to achieve effective gamma %f\n",li.in.tgamma, li.in.egamma); - } else { - if (li.verb) - printf("Using technical gamma %f\n",li.in.tgamma); - } - - bt1886_setup(&li.in.bt, bp, li.in.tgamma); - - if (li.verb) { - printf("bt1886 target out black rel XYZ = %f %f %f, Lab %f %f %f\n", - bp[0],bp[1],bp[2], li.in.bt.outL, li.in.bt.tab[0], li.in.bt.tab[1]); - printf("bt1886 Y input offset = %f\n", li.in.bt.ingo); - printf("bt1886 Y output scale = %f\n", li.in.bt.outsc); - } - - /* Check black point now produced by input profile with bt.1886 adjustment */ - rgb[0] = rgb[1] = rgb[2] = 0.0; - lu->fwd_curve(lu, rgb, rgb); - lu->fwd_matrix(lu, rgb, rgb); - bt1886_apply(&li.in.bt, plu, rgb, rgb); - if (li.verb) printf("bt1886 check input black point rel. XYZ %f %f %f\n", rgb[0],rgb[1],rgb[2]); - /* Convert XYZ black point to gamut mapping space */ - lu->fwd_abs(lu, li.in.bt_bk, bp); - if (li.verb) printf("bt1886 check input black point PCS %f %f %f\n", li.in.bt_bk[0],li.in.bt_bk[1],li.in.bt_bk[2]); - - oluo->del(oluo); - - if (li.verb) { - int no = 21; - - /* Overral rendering curve from video in to output target */ - printf("BT.1886 overall rendering\n"); - for (i = 0; i < no; i++) { - double v = i/(no-1.0), vv; - double vi[3], vo[3], Lab[3]; - double loglog = 0.0; - - if (v <= 0.081) - vv = v/4.5; - else - vv = pow((0.099 + v)/1.099, 1.0/0.45); - - vi[0] = vv * 0.9642; /* To D50 XYZ */ - vi[1] = vv * 1.0000; - vi[2] = vv * 0.8249; - - bt1886_apply(&li.in.bt, plu, vo, vi); /* BT.1886 mapping */ - - icmXYZ2Lab(&icmD50, Lab, vo); - - if (v > 1e-9 && vo[1] > 1e-9 && fabs(v - 1.0) > 1e-9) - loglog = log(vo[1])/log(v); - - printf(" In %5.1f%% -> XYZ in %f -> bt.1886 %f, log/log %.3f, Lab %f %f %f \n",v * 100.0,vi[1],vo[1], loglog, Lab[0], Lab[1], Lab[2]); - } - } - } - /* - - - - - - - - - - - - - - - - - - - */ /* Setup the gamut mapping */ // ~~~~ need to account for possible abstract profile after source !!!! @@ -3323,14 +3571,6 @@ main(int argc, char *argv[]) { if ((csgam = li.in.luo->get_gamut(li.in.luo, sgres)) == NULL) error ("%d, %s",li.in.x->errc, li.in.x->err); - /* If BT.1886 has modified the effective input space black point, */ - /* change the black point in the source gamut to match. (Note that */ - /* this doesn't fix the source gamut surface itself, but should */ - /* make sure that the gamut mapping black point mapping works properly.) */ - if (li.in.bt1886 == 1) { - csgam->set_cs_bp_kp_ovrd(csgam, li.in.bt_bk, li.in.bt_bk); - } - /* Grab a given source image gamut. */ if (sgam_name[0] != '\000') { /* Optional source gamut - ie. from an images */ @@ -3367,7 +3607,7 @@ main(int argc, char *argv[]) { li.map = new_gammap(li.verb, csgam, igam, ogam, &li.gmi, li.src_kbp, li.dst_kbp, li.cmyhack, li.rel_oride, - mapres, NULL, NULL, li.gamdiag ? "gammap.wrl" : NULL + mapres, NULL, NULL, li.gamdiag ? "gammap" : NULL ); if (li.map == NULL) error ("Failed to make gamut map transform"); @@ -3378,7 +3618,7 @@ main(int argc, char *argv[]) { li.Kmap = new_gammap(li.verb, csgam, igam, ogam, &li.gmi, 1, 1, li.cmyhack, li.rel_oride, - mapres, NULL, NULL, li.gamdiag ? "gammap.wrl" : NULL + mapres, NULL, NULL, li.gamdiag ? "gammap" : NULL ); if (li.Kmap == NULL) error ("Failed to make K only gamut map transform"); @@ -3421,6 +3661,148 @@ main(int argc, char *argv[]) { } } + /* Check rgbbkhack is being used in correct circumstances */ + if (li.rgbbkhack) { + if (li.in.csp != icSigRgbData + || li.out.csp != icSigRgbData) + error("Black hack (-b) only valid for RGB input & output"); + } + + /* Do sanity check and setup for BT.1886 gamma mapping */ + if (li.in.bt1886) { + bt1886_setnop(&li.in.bt); + } + if (li.in.bt1886) { /* If doing BT.1886/output offset power black point mapping */ + int fl = 0; /* Flags */ + icxLuMatrix *lu; /* Input profile lookup */ + icmLuMatrix *plu; /* Input profile lookup */ + icxLuBase *oluo; /* Output fwd lookup */ + double bp[3], rgb[3]; + + /* Check input profile is an RGB matrix profile */ + if (li.in.alg != icmMatrixFwdType + || li.in.csp != icSigRgbData) + error("BT.1886/Abs power mode only works with an RGB matrix input profile"); + + /* Get ready to do fwd lookup on input profile */ + lu = (icxLuMatrix *)li.in.luo; /* Safe to coerce - we have checked it's matrix. */ + plu = (icmLuMatrix *)lu->plu; + + /* Get ready to do fwd lookup on output profile */ + /* (li.out.lu may or may not be what we want, so temporarily make another one */ + + fl = ICX_CLIP_NEAREST; + +#ifdef USE_MERGE_CLUT_OPT + fl |= ICX_MERGE_CLUT; +#endif +#ifdef USE_CAM_CLIP_OPT + fl |= ICX_CAM_CLIP; +#endif + if ((oluo = li.out.x->get_luobj(li.out.x, fl, icmFwd, + li.out.intent, li.pcsor, icmLuOrdNorm, &li.out.vc, + &li.out.ink)) == NULL) { + error("get xlookup object failed: %d, %s",li.out.x->errc,li.out.x->err); + } + + /* We're assuming that the input space has a perfect black point... */ + /* and we're assuming that RGB=0 gives us outpu black. Hmm... */ + + /* Lookup the ouput black point in our gamut mapping PCS.*/ + bp[0] = bp[1] = bp[2] = 0.0; + oluo->lookup(oluo, bp, bp); + + if (li.verb) + printf("Output black PCS = %f %f %f\n",bp[0],bp[1],bp[2]); + + /* Compute pre-gamut mapping black point value */ + if (li.mode > 0 && li.gmi.usemap) { + li.map->invdomap1(li.map, bp, bp); + if (li.verb) + printf("Output black PCS pre GMAP = %f %f %f\n",bp[0],bp[1],bp[2]); + } + + /* Undo luminence scaling */ + if (li.xyzscale < 1.0) { + double xyz[3]; + + /* Convert our PCS to XYZ */ + if (li.pcsor == icxSigJabData) { + /* We're being bad in delving inside the xluo, but we'll fix it latter */ + oluo->cam->cam_to_XYZ(oluo->cam, xyz, bp); + } else + error("Internal :- not setup to handle Y scaling and non-Jab PCS"); + + /* Unscale it */ + xyz[0] /= li.xyzscale; + xyz[1] /= li.xyzscale; + xyz[2] /= li.xyzscale; + + /* Convert back to PCS */ + if (li.pcsor == icxSigJabData) { + /* We're being bad in delving inside the xluo, but we'll fix it latter */ + oluo->cam->XYZ_to_cam(oluo->cam, bp, xyz); + } else + error("Internal :- not setup to handle Y scaling and non-Jab PCS"); + + if (li.verb) + printf("Output black PCS pre lumscale = %f %f %f\n",bp[0],bp[1],bp[2]); + } + + /* PCS to matrix relative colorimetric XYZ value */ + lu->bwd_abs(lu, bp, bp); + + bt1886_setup(&li.in.bt, &plu->pcswht, bp, li.in.outoprop, + li.in.bt1886 == 1 ? li.in.egamma : li.in.tgamma, li.in.bt1886 == 1 ? 1 : 0); + + if (li.verb) { + printf("Gamma curve target out black rel XYZ = %f %f %f, Lab %f %f %f\n", + bp[0],bp[1],bp[2], li.in.bt.outL, li.in.bt.tab[1], li.in.bt.tab[2]); + printf("Proportion of black output offset = %f%s\n", li.in.outoprop, + li.in.outoprop == 0.0 ? " (BT.1886)" : ""); + printf("Gamma Y input offset = %f\n", li.in.bt.ingo); + if (li.in.bt1886 == 1) /* Using effective gamma */ + printf("Gamma Y power = %f (effective = %f)\n", li.in.bt.gamma,li.in.egamma); + else + printf("Gamma Y power = %f\n", li.in.bt.gamma); + printf("Gamma Y output scale = %f\n", li.in.bt.outsc); + printf("Gamma Y output offset = %f\n", li.in.bt.outo); + } + + /* Check black point now produced by input profile with bt.1886/Abs power adjustment */ + rgb[0] = rgb[1] = rgb[2] = 0.0; + bt1886_fwd_curve(&li.in.bt, rgb, rgb); + lu->fwd_matrix(lu, rgb, rgb); + bt1886_wp_adjust(&li.in.bt, rgb, rgb); + if (li.verb) printf("bt1886 check input black point rel. XYZ %f %f %f\n", rgb[0],rgb[1],rgb[2]); + /* We're done with our output profile lookup */ + oluo->del(oluo); + + if (li.verb) { + int no = 21; + + /* Overral rendering curve from video in to output target */ + printf("BT.1886 overall rendering\n"); + for (i = 0; i < no; i++) { + double v = i/(no-1.0), vv; + double vi[3], vo[3], Lab[3]; + double loglog = 0.0; + + vi[0] = vi[1] = vi[2] = v; + + bt1886_fwd_curve(&li.in.bt, vo, vi); + lu->fwd_matrix(lu, vo, vo); + bt1886_wp_adjust(&li.in.bt, vo, vo); + icmXYZ2Lab(&plu->pcswht, Lab, vo); + + if (v > 1e-9 && vo[1] > 1e-9 && fabs(v - 1.0) > 1e-9) + loglog = log(vo[1])/log(v); + + printf(" In %5.1f%% -> XYZ in %f -> bt.1886 %f, log/log %.3f, Lab %f %f %f \n",v * 100.0,vi[1],vo[1], loglog, Lab[0], Lab[1], Lab[2]); + } + } + } + /* Create the link profile */ if (verify == 0) { icmFile *wr_fp; @@ -3444,12 +3826,12 @@ main(int argc, char *argv[]) { /* Values that must be set before writing */ wh->deviceClass = icSigLinkClass; /* We are creating a link ! */ - if (li.in.tvenc >= 2) { + if (li.in.tvenc >= 3) { wh->colorSpace = icSigYCbCrData; /* Use YCbCr encoding */ } else { wh->colorSpace = li.in.h->colorSpace; /* Input profile device space */ } - if (li.out.tvenc >= 2) { + if (li.out.tvenc >= 3) { wh->pcs = icSigYCbCrData; /* Use YCbCr encoding */ } else { wh->pcs = li.out.h->colorSpace; /* Output profile device space */ @@ -3880,7 +4262,7 @@ main(int argc, char *argv[]) { outputEnt = out_curve_res; /* Sanity checking */ - if (li.in.tvenc >= 2) { /* YCbCr encoded input */ + if (li.in.tvenc >= 3) { /* YCbCr encoded input */ if ((clutPoints & 1) == 0) warning("Making grid resolution is even - this is not ideal for YCbCr input"); } @@ -3897,6 +4279,12 @@ main(int argc, char *argv[]) { warning("MadVR 3DLut will work best with grid resolution of 65 (got %d)",clutPoints); inputEnt = 1024; /* Not used */ outputEnt = 1024; /* Not used */ + + } else if (li.tdlut == 3) { + if (clutPoints != 65 && clutPoints != 129 && clutPoints != 256) + warning(".cube 3DLut will work best with grid resolution of 65 (got %d)",clutPoints); + inputEnt = 1024; /* Not used */ + outputEnt = 1024; /* Not used */ } /* Limits are grid indexes that should not be adjusted by SET_APXLS */ @@ -3905,18 +4293,31 @@ main(int argc, char *argv[]) { apxls_min = tapxls_min; apxls_max = tapxls_max; for (i = 0; i < li.in.chan; i++) { - apxls_min[i] = (int)(16.0/255.0 * (clutPoints-1.0) + 0.9); - apxls_max[i] = (int)(235.0/255.0 * (clutPoints-1.0) + 0.1); + if (clutPoints <= 65) { + apxls_min[i] = (int)(4.0/64.0 * (clutPoints-1.0) + 0.9); + apxls_max[i] = (int)(58.0/64.0 * (clutPoints-1.0) + 0.1); + } else { + apxls_min[i] = (int)(16.0/255.0 * (clutPoints-1.0) + 0.9); + apxls_max[i] = (int)(235.0/255.0 * (clutPoints-1.0) + 0.1); + } } - } else if (li.in.tvenc >= 2) { /* YCbCr encoded */ + } else if (li.in.tvenc >= 3) { /* YCbCr encoded */ apxls_min = tapxls_min; apxls_max = tapxls_max; for (i = 0; i < li.in.chan; i++) { - apxls_min[i] = (int)(16.0/255.0 * (clutPoints-1.0) + 0.9); - if (i == 0) - apxls_max[i] = (int)(235.0/255.0 * (clutPoints-1.0) + 0.1); - else - apxls_max[i] = (int)(240.0/255.0 * (clutPoints-1.0) + 0.1); + if (clutPoints <= 65) { + apxls_min[i] = (int)(4.0/64.0 * (clutPoints-1.0) + 0.9); + if (i == 0) + apxls_max[i] = (int)(58.0/64.0 * (clutPoints-1.0) + 0.1); + else + apxls_max[i] = (int)(60.0/64.0 * (clutPoints-1.0) + 0.1); + } else { + apxls_min[i] = (int)(16.0/255.0 * (clutPoints-1.0) + 0.9); + if (i == 0) + apxls_max[i] = (int)(235.0/255.0 * (clutPoints-1.0) + 0.1); + else + apxls_max[i] = (int)(240.0/255.0 * (clutPoints-1.0) + 0.1); + } } } @@ -3954,13 +4355,19 @@ main(int argc, char *argv[]) { if (li.verb) printf("Filling in Lut table\n"); #ifdef DEBUG_ONE -#define DBGNO 3 /* Up to 10 */ +#define DBGNO 1 /* Up to 10 */ #ifndef NEVER /* Test a single given rgb/cmyk -> cmyk value */ { double in[10][MAX_CHAN]; double out[MAX_CHAN]; + + in[0][0] = 125.0/255.0; + in[0][1] = 61.4/255.0; + in[0][2] = 28.42/255.0; + in[0][0] = 0.5; + // in[0][0] = 0.2; // in[0][1] = 0.2; // in[0][2] = 0.8; @@ -3980,20 +4387,23 @@ main(int argc, char *argv[]) { // in[0][2] = 16.0/255.0; // in[0][3] = 0.0; - in[0][0] = 3.0/64.0; - in[0][1] = 3.0/64.0; - in[0][2] = 3.0/64.0; - in[0][3] = 0.0; +// in[0][0] = 3.0/64.0; +// in[0][1] = 3.0/64.0; +// in[0][2] = 3.0/64.0; +// in[0][3] = 0.0; - in[1][0] = 4.0/64.0; - in[1][1] = 4.0/64.0; - in[1][2] = 4.0/64.0; - in[1][3] = 0.0; +// in[1][0] = 4.0/64.0; +// in[1][1] = 4.0/64.0; +// in[1][2] = 4.0/64.0; +// in[1][3] = 0.0; - in[2][0] = 5.0/64.0; - in[2][1] = 5.0/64.0; - in[2][2] = 5.0/64.0; - in[2][3] = 0.0; +// in[2][0] = 5.0/64.0; +// in[2][1] = 5.0/64.0; +// in[2][2] = 5.0/64.0; +// in[2][3] = 0.0; + + if (li.map != NULL) + li.map->dbg = 1; for (i = 0; i < DBGNO; i++) { printf("Input %f %f %f %*\n",in[i][0], in[i][1], in[i][2], in[i][3]); @@ -4002,8 +4412,12 @@ main(int argc, char *argv[]) { devip_devop((void *)&li, out, out); printf("Out'' %f %f %f %*\n",out[0], out[1], out[2], out[3]); devop_devo((void *)&li, out, out); - printf("Out %f %f %f %*\n\n",out[0], out[1], out[2], out[3]); + printf("Out %f %f %f %f\n\n",out[0], out[1], out[2], out[3]); } + + if (li.map != NULL) + li.map->dbg = 0; + } #endif /* NEVER */ @@ -4016,6 +4430,7 @@ main(int argc, char *argv[]) { ; li.total = itotal; /* Allow for extra lookups due to ICM_CLUT_SET_APXLS */ +#ifdef USE_APXLS if (apxls_min != NULL && apxls_max != NULL) { for (itotal = 1, ui = 0; ui < li.in.chan; ui++) itotal *= (apxls_max[ui] - apxls_min[ui]); @@ -4024,13 +4439,17 @@ main(int argc, char *argv[]) { itotal *= (clutPoints-1); } li.total += itotal; +#endif /* USE_APXLS */ li.count = 0; printf(" 0%%"); fflush(stdout); } if (icmSetMultiLutTables( 1, &wo, - ICM_CLUT_SET_APXLS, /* Use aproximate least squares */ +#ifdef USE_APXLS + ICM_CLUT_SET_APXLS | /* Use aproximate least squares */ +#endif /* USE_APXLS */ + 0, &li, /* Context */ li.in.h->colorSpace, /* Input color space */ li.out.h->colorSpace, /* Output color space */ @@ -4060,7 +4479,13 @@ main(int argc, char *argv[]) { if (li.verb && li.wphack && li.wphacked > 1) printf("Warning :- white point hack trigger more than once! (%d)\n",li.wphacked); - /* Special case black point correction when we are usng TV encoding */ + if (li.verb && li.rgbbkhack && li.bkhacked == 0) + printf("Warning :- RGB black point hack didn't trigger!\n"); + if (li.verb && li.rgbbkhack && li.bkhacked > 1) + printf("Warning :- RGB black hack trigger more than once! (%d)\n",li.bkhacked); + +#ifdef NEVER /* Don't need this now that we've made the black line up on the grid ? */ + /* Special case black point correction when we are using TV encoding */ /* and the black probably doesn't lie on a grid point. */ /* This probably only works if we can have "-ve" output values */ /* by virtue of the output being tv encoded too. */ @@ -4077,26 +4502,24 @@ main(int argc, char *argv[]) { /* Encode input value */ if (li.out.tvenc == 1) { /* Video 16-235 range */ icmRGB_2_VidRGB(ival, ival); - } else if (li.out.tvenc == 2) { /* Rec601 YCbCr */ + } else if (li.out.tvenc == 3) { /* Rec601 YCbCr */ icmRec601_RGBd_2_YPbPr(ival, ival); icmRecXXX_YPbPr_2_YCbCr(ival, ival); - } else if (li.out.tvenc == 3) { /* Rec709 1150/60/2:1 YCbCr */ + } else if (li.out.tvenc == 4) { /* Rec709 1150/60/2:1 YCbCr */ icmRec709_RGBd_2_YPbPr(ival, ival); icmRecXXX_YPbPr_2_YCbCr(ival, ival); - } else if (li.out.tvenc == 4) { /* Rec709 1250/50/2:1 YCbCr */ + } else if (li.out.tvenc == 5) { /* Rec709 1250/50/2:1 YCbCr */ icmRec709_50_RGBd_2_YPbPr(ival, ival); icmRecXXX_YPbPr_2_YCbCr(ival, ival); - } else if (li.out.tvenc == 5) { /* Rec2020 Non-constant Luminance YCbCr encoding */ + } else if (li.out.tvenc == 6) { /* Rec2020 Non-constant Luminance YCbCr encoding */ icmRec2020_NCL_RGBd_2_YPbPr(ival, ival); icmRecXXX_YPbPr_2_YCbCr(ival, ival); - } else if (li.out.tvenc == 6) { /* Rec2020 Constant Luminance YCbCr encoding */ + } else if (li.out.tvenc == 7) { /* Rec2020 Constant Luminance YCbCr encoding */ icmRec2020_CL_RGBd_2_YPbPr(ival, ival); icmRecXXX_YPbPr_2_YCbCr(ival, ival); } -//printf("input value %f %f %f\n",ival[0], ival[1], ival[2]); lut->lookup_clut_sx(lut, oval, ival); -//printf("before tune out %f %f %f\n",oval[0], oval[1], oval[2]); /* Lookup the cLUT input value */ devi_devip((void *)&li, ival, ival); @@ -4104,25 +4527,19 @@ main(int argc, char *argv[]) { /* Look up black output value we want */ devip_devop((void *)&li, oval, ival); -//printf("bp tune target %f %f %f\n",oval[0], oval[1], oval[2]); - // ~~~~9999 should do a lookup to set sx/nl type corrctly + // ~9 should do a lookup to set sx/nl type corrctly rv = lut->tune_value(lut, oval, ival); // rv = icmLut_tune_value_sx(lut, oval, ival); // rv = icmLut_tune_value_nl(lut, oval, ival); if (rv != 0) warning("Fine tuning video black failed - clipping"); - -// lut->lookup_clut_sx(lut, oval, ival); -//printf("after sx out %f %f %f\n",oval[0], oval[1], oval[2]); - -// lut->lookup_clut_nl(lut, oval, ival); -//printf("after nl out %f %f %f\n",oval[0], oval[1], oval[2]); } +#endif /* NEVER */ if (li.verb) - printf("Writing out file\n"); + printf("Writing ICC file '%s'\n",link_name); /* Write the file out */ if ((rv = wr_icc->write(wr_icc,wr_fp,0)) != 0) @@ -4131,7 +4548,7 @@ main(int argc, char *argv[]) { /* eeColor format */ if (li.tdlut == 1) { write_eeColor1DinputLuts(&li, tdlut_name); - if (write_eeColor3DLut(wr_icc, tdlut_name)) + if (write_eeColor3DLut(wr_icc, &li, tdlut_name)) error ("Write file '%s' failed",tdlut_name); write_eeColor1DoutputLuts(&li, tdlut_name); } @@ -4142,6 +4559,12 @@ main(int argc, char *argv[]) { error ("Write file '%s' failed",tdlut_name); } + /* .cube format */ + else if (li.tdlut == 3) { + if (write_cube_3DLut(&li, wr_icc, tdlut_name)) + error ("Write file '%s' failed",tdlut_name); + } + wr_icc->del(wr_icc); wr_fp->del(wr_fp); @@ -4323,6 +4746,21 @@ main(int argc, char *argv[]) { /* ===================================================================== */ +/* Tweak for eeColor input and output value encodings */ + +static void VidRGB_to_eeColor(double out[3], double in[3]) { + int i; + for (i = 0; i < 3; i++) + out[i] = in[i] * 255.0/256.0; +} + +static void eeColor_to_VidRGB(double out[3], double in[3]) { + int i; + for (i = 0; i < 3; i++) + out[i] = in[i] * 256.0/255.0; +} + + /* Write a eeColor 1DLut input LUT files */ /* Return nz on error */ int write_eeColor1DinputLuts(clink *li, char *tdlut_name) { @@ -4350,89 +4788,42 @@ int write_eeColor1DinputLuts(clink *li, char *tdlut_name) { for (i = 0; i < 1024; i++) { for (k = 0; k < 3; k++) in[k] = i/(1024-1.0); - devi_devip((void *)li, out, in); - fp->gprintf(fp,"%.6f\n",out[j]); - } - if (fp->del(fp)) - error ("write_eeColor1DinputLuts to '%s' failed",fname); - } - return 0; -} - -#ifdef NEVER - -/* Write a eeColor 3DLut file */ -/* Return nz on error */ -/* (We delve inside the icc structure, so don't use this code) */ -int write_eeColor3DLut(icc *icc, char *fname) { - icmLut *lut; - icmFile *fp; - - if ((lut = (icmLut *)icc->read_tag(icc, icSigAToB0Tag)) == NULL) - error("write_eeColor3DLut: unableto locate A2B tag: %d, %s",icc->errc,icc->err); - - /* Open up the 3dlut file for writing */ - if ((fp = new_icmFileStd_name(fname,"w")) == NULL) - error ("write_eeColor3DLut: Can't open file '%s'",fname); - - { - int i, j, k; - DCOUNT(gc, MAX_CHAN, lut->inputChan, 0, 0, lut->clutPoints); - int ord[3] = { 1, 0, 2 }; /* Channel order, fastest to slowest, G, R, B */ - - DC_INIT(gc); - - while (!DC_DONE(gc)) { - int ix; - - ix = 0; - for (i = 0; i < lut->inputChan; i++) { - ix += lut->dinc[ord[i]] * gc[i]; - } - - /* Hmm. We're assuming that the eeColor is smart enough */ - /* to map the floating point values to the maximum */ - /* video encoded range, ie 255 * (bits - 8). */ - /* It's not clear if "bits" is 8, 10 or 12, or if */ - /* it actually works this way though. */ + /* Full range -> 64/65 scaled */ + /* or Video -> cLUT65 index */ + devi_devip((void *)li, out, in); - /* It's also not clear what it does for full range input, */ - /* if anything. Ie. it may just map that to 255 * (bits - 8) too. */ + if (li->in.tvenc == 1) { /* Video 16-235 range */ + cLUT65_to_VidRGB(out, out); - /* There are two sets of RGB values. One is (suposedly) - the "calibrated white point" and one "the native white point". - It's hard to guess what this is. - */ - - for (i = 0; i < lut->inputChan; i++) { - fp->gprintf(fp," %.6f",lut->clutTable[ix + i]); + /* eeColor doesn't actually do YCrCb explicitly, but put this here for completeness */ + } else if (li->in.tvenc == 3 /* Rec601 YCbCr */ + || li->in.tvenc == 4 /* Rec709 1150/60/2:1 YCbCr */ + || li->in.tvenc == 5 /* Rec709 1250/50/2:1 YCbCr */ + || li->in.tvenc == 6 /* Rec2020 Non-constant Luminance YCbCr encoding */ + || li->in.tvenc == 7) { /* Rec2020 Constant Luminance YCbCr encoding */ + cLUT65_to_YCrCb(out, out); } - for (i = 0; i < lut->outputChan; i++) { - fp->gprintf(fp," %.6f",lut->clutTable[ix + i]); - } - - fp->gprintf(fp,"\n"); - DC_INC(gc); + fp->gprintf(fp,"%.6f\n",out[j]); } + + if (fp->del(fp)) + error ("write_eeColor1DinputLuts to '%s' failed",fname); } - if (fp->del(fp)) - error ("write_eeColor3DLut: write to '%s' failed",fname); return 0; } -#else - /* Write a eeColor 3DLut file by doing a lookup for each node. */ /* Return nz on error */ -int write_eeColor3DLut(icc *icc, char *fname) { +int write_eeColor3DLut(icc *icc, clink *li, char *fname) { icmLuBase *luo; icmLuLut *lut; int i, j, k; DCOUNT(gc, MAX_CHAN, 3, 0, 0, 65); int ord[3]; /* Input channel order, fastest to slowest */ icmFile *fp; +// int trace = 0; /* Get a conversion object. We assume it is of the right type, being a link */ if ((luo = icc->get_luobj(icc, icmFwd, icmDefaultIntent, icmSigDefaultData, icmLuOrdNorm)) @@ -4451,33 +4842,81 @@ int write_eeColor3DLut(icc *icc, char *fname) { ord[0] = 1; ord[1] = 0; ord[2] = 2; /* Fastest to slowest G R B */ while (!DC_DONE(gc)) { - double in[3], out[3]; + double oin[3], in[3], out[3]; + + /* Our assumption is that the eeColor maps the FP range 1.0 + to 64 * 2^(bits -6). This is sligghtly too much for + full range (PC), but exactly lines the black point + up on the 4th grid node for any video encodig bit depth, + and results in input values being the same as output + values for the null transform + */ + /* There are two sets of RGB values. One is (suposedly) + the "calibrated white point" and one "the native white point", + but experiments don't give any indications that the first + three entries are capable of affecting the result in any way + in any mode.. + */ + + /* The eeColor wires the 65'th node to 1.0, and we can skip */ + /* creating it */ + if (gc[0] == 64 || gc[1] == 64 || gc[2] == 64) + goto next; - /* Hmm. If we knew how the eeColor quantized the incoming video values, */ - /* we could do the same quantization here for better accuracy. */ - /* It's hard to guess given the unknown 8/10/12 bit nature of it. */ for (i = 0; i < 3; i++) - in[ord[i]] = gc[i]/64.0; + oin[ord[i]] = gc[i]/64.0; + +// trace = 0; +// if (gc[0] == 4 && gc[1] == 4 && gc[2] == 4) trace = 1; +// if (gc[0] == 58 && gc[1] == 58 && gc[2] == 58) trace = 1; +// if (gc[0] == 59 && gc[1] == 59 && gc[2] == 59) trace = 1; + +// if (trace) printf("eeColor ix oin = %f %f %f\n", oin[0], oin[1], oin[2]); + + eeColor_to_VidRGB(in, oin); + +// if (trace) printf("Video in = %f %f %f\n", in[0], in[1], in[2]); + + if (li->clutres == 65 + || li->clutres == 33 + || li->clutres == 17) { + + if (li->in.tvenc == 1) { /* Video 16-235 range */ + VidRGB_to_cLUT65(in, in); + + /* eeColor doesn't actually do YCrCb explicitly, but put this here for completeness */ + } else if (li->in.tvenc == 3 /* Rec601 YCbCr */ + || li->in.tvenc == 4 /* Rec709 1150/60/2:1 YCbCr */ + || li->in.tvenc == 5 /* Rec709 1250/50/2:1 YCbCr */ + || li->in.tvenc == 6 /* Rec2020 Non-constant Luminance YCbCr encoding */ + || li->in.tvenc == 7) { /* Rec2020 Constant Luminance YCbCr encoding */ + YCrCb_to_cLUT65(in, in); + } + } +// if (trace) printf("cLut in = %f %f %f\n", in[0], in[1], in[2]); if (lut->clut(lut, out, in) > 1) error ("write_eeColor3DLut: %d, %s",icc->errc,icc->err); -//printf("~1 %f %f %f -> %f %f %f\n", in[0], in[1], in[2], out[0], out[1], out[2]); +// if (trace) printf("cLut/video out = %f %f %f\n", out[0], out[1], out[2]); + + VidRGB_to_eeColor(out, out); +// if (trace) printf("eeColor out = %f %f %f\n", out[0], out[1], out[2]); for (i = 0; i < 3; i++) - fp->gprintf(fp," %.6f",out[i]); + fp->gprintf(fp," %.6f",oin[i]); for (i = 0; i < 3; i++) fp->gprintf(fp," %.6f",out[i]); fp->gprintf(fp,"\n"); + next:; DC_INC(gc); } if (fp->del(fp)) error ("write_eeColor3DLut: write to '%s' failed",fname); return 0; } -#endif /* Write a eeColor 1DLut output LUT files */ /* Return nz on error */ @@ -4574,11 +5013,11 @@ int write_MadVR_3DLut(clink *li, icc *icc, char *fname) { write_ORD32_le(8, h + of); of += 4; /* input bit depth */ write_ORD32_le(8, h + of); of += 4; write_ORD32_le(8, h + of); of += 4; - write_ORD32_le(li->in.tvenc >= 2 ? 1 : 0, h + of); of += 4; /* Input BGR or cCbCr enc */ + write_ORD32_le(li->in.tvenc >= 3 ? 1 : 0, h + of); of += 4; /* Input BGR or cCbCr enc */ if (dov2) write_ORD32_le(li->in.tvenc != 0 ? 1 : 0, h + of), of += 4; /* Range */ write_ORD32_le(16, h + of); of += 4; /* Output bit depth */ - write_ORD32_le(li->out.tvenc >= 2 ? 1 : 0, h + of); of += 4; /* Output BGR or YCbCr encoding */ + write_ORD32_le(li->out.tvenc >= 3 ? 1 : 0, h + of); of += 4; /* Output BGR or YCbCr encoding */ if (dov2) write_ORD32_le(li->out.tvenc != 0 ? 1 : 0, h + of), of += 4; /* Range */ write_ORD32_le(0x200, h + of); of += 4; /* Bytes to parameters */ @@ -4604,7 +5043,7 @@ int write_MadVR_3DLut(clink *li, icc *icc, char *fname) { write_ORD32_le(clutsize, h + of); of += 4; /* Uncompressed clut size */ if (li->verb) - printf("Writing 3dLut\n"); + printf("Writing MadVR 3dLut '%s'\n",fname); /* Write the 3dlutheader */ if (fp->write(fp, h, 1, 0x4000) != 0x4000) @@ -4619,7 +5058,7 @@ int write_MadVR_3DLut(clink *li, icc *icc, char *fname) { DC_INIT(gc); - if (li->in.tvenc >= 2) { /* YCbCr fastest to slowest is Y Cb Cr */ + if (li->in.tvenc >= 3) { /* YCbCr fastest to slowest is Y Cb Cr */ ord[0] = 0; ord[1] = 1; ord[2] = 2; /* Y Cb Cr */ } else { /* RGB fastest to slowest is B G R */ @@ -4638,7 +5077,7 @@ int write_MadVR_3DLut(clink *li, icc *icc, char *fname) { //printf("~1 %f %f %f -> %f %f %f\n", in[0], in[1], in[2], out[0], out[1], out[2]); - if (li->in.tvenc == 7 || li->in.tvenc == 8) { /* xvYCC */ + if (li->in.tvenc == 8 || li->in.tvenc == 9) { /* xvYCC */ for (i = 1; i < 3; i++) { /* Force 'sync' entry values on CbCr*/ if (gc[i] == 0) { out[i] = 0.0; @@ -4660,7 +5099,7 @@ int write_MadVR_3DLut(clink *li, icc *icc, char *fname) { } - if (li->out.tvenc >= 2) { /* YCbCr order is YCbCr */ + if (li->out.tvenc >= 3) { /* YCbCr order is YCbCr */ write_ORD16_le(iout[0], buf + 0); write_ORD16_le(iout[1], buf + 2); write_ORD16_le(iout[2], buf + 4); @@ -4736,5 +5175,75 @@ int write_MadVR_3DLut(clink *li, icc *icc, char *fname) { return 0; } +/* ===================================================================== */ +/* Write .cube 3dlut file */ + +/* Return nz on error */ +int write_cube_3DLut(clink *li, icc *icc, char *fname) { + icmFile *fp; + ORD8 *h; + int clutsize; + int i; + + icmLuBase *luo; + icmLut *lu; + + /* Get a conversion object. We assume it is of the right type */ + if ((luo = icc->get_luobj(icc, icmFwd, icmDefaultIntent, + icmSigDefaultData, icmLuOrdNorm)) == NULL) + error ("write_cube_3DLut: %d, %s",icc->errc, icc->err); + + /* Open up the 3dlut file for writing */ + if ((fp = new_icmFileStd_name(fname,"w")) == NULL) + error("write_cube_3DLut: Can't open file '%s'",fname); + + lu = ((icmLuLut *)luo)->lut; + clutsize = lu->clutPoints; + + fp->gprintf(fp, "# Created by ArgyllCMS\n"); + fp->gprintf(fp, "LUT_3D_SIZE %d\n",clutsize); +// fp->gprintf(fp, "DOMAIN_MIN %f %f %f\n",0.0, 0.0, 0.0); +// fp->gprintf(fp, "DOMAIN_MAX %f %f %f\n",1.0, 1.0, 1.0); + + if (li->verb) + printf("Writing .cube 3dLut '%s'\n",fname); + + /* Write the clut data */ + { + int i, j, k; + DCOUNT(gc, MAX_CHAN, 3, 0, 0, clutsize); + int ord[3]; /* Input channel order, fastest to slowest */ + + DC_INIT(gc); + + /* RGB fastest to slowest is R G B */ + ord[0] = 0; ord[1] = 1; ord[2] = 2; /* R G B */ + + while (!DC_DONE(gc)) { + double in[3], out[3]; + int iout[3]; + + for (i = 0; i < 3; i++) + in[ord[i]] = gc[i]/(clutsize-1.0); + + if (luo->lookup(luo, out, in) > 1) + error ("write_cube_3DLut: %d, %s",icc->errc,icc->err); + +//printf("~1 %f %f %f -> %f %f %f\n", in[0], in[1], in[2], out[0], out[1], out[2]); + fp->gprintf(fp, " %f %f %f\n",out[0], out[1], out[2]); + + DC_INC(gc); + } + } + + if (fp->del(fp)) + error ("write_cube_3DLut: write to '%s' failed",fname); + + luo->del(luo); + + return 0; +} + + diff --git a/link/monoplot.c b/link/monoplot.c index 781342b..adcc532 100644 --- a/link/monoplot.c +++ b/link/monoplot.c @@ -28,6 +28,7 @@ #include "aconfig.h" #include "icc.h" #include "plot.h" +#include "ui.h" #define PRES 100 diff --git a/link/pathplot.c b/link/pathplot.c index fc12943..afe1fee 100644 --- a/link/pathplot.c +++ b/link/pathplot.c @@ -33,6 +33,7 @@ #include "icc.h" #include "xicc.h" #include "plot.h" +#include "ui.h" #define PRES 100 diff --git a/log.txt b/log.txt index ce1a4d1..d7535f7 100644 --- a/log.txt +++ b/log.txt @@ -2,6 +2,213 @@ Argyll CMS change log ===================== +Version 1.7.0 (1st May 2015) +------------- + +* Improved gamut mapping to reduce unnecessary changes to less saturated colors + such as skin tones. + +* Add support for DataColor Spyder 5. + +* Ignore any patches that have zero values for creating Display profiles, + unless they are for device zero. This is to avoid measurements below + and instruments measurement capability causing shadow response to be raised. + +* Add better cross compatibility with non-Argyll ICC profiles: + + Use "wrong Von Kries" media white point adapation for non-Argyll non-display profiles + + Optionally create "wrong Von Kries" media white point adapation profiles + using the "ARGYLL_CREATE_WRONG_VON_KRIES_OUTPUT_CLASS_REL_WP" env. variable, + while maintaining ArgyllCMS compatibility using the 'arts' tag. + + Implement proper absolute colorimetric intent for ICCV2 Display profiles + that use the ICCV4 style of have a media white of D50 and storing the + media chromatic trasnform in the 'chad' tag. + + Optionally create such ICCV4 style V2 Display profiles by using the + "ARGYLL_CREATE_DISPLAY_PROFILE_WITH_CHAD" env. variable. + +* Reverted to handling collink Video encoding overrage input (WTW) with + extrapolation that preserves hues, and added an input encoding option + "Video with clipping" to cope with TV's that don't preserver hue + for WTW.. + +* Add X3D and X3DOM support as an alternative to VRML, and make X3DOM the default. + +* Update to use latest MadVR background setting code (v0.87.11) + +* Fix problem with JETI communication overrun and 1201 timeout. + +* Improve JETI specbos 1201 and 1211 compatibility with older firmware. + +* Improve KLEIN robustness by automatically retrying range errors. + +* Fix bug in recognizing Klein K-10 (non A) instrument. + +* Fixed bug in working with newer firmware Klein K10A. + +* Fix gestaltSystemVersion warning on OS X 10.10. + +* Fix crash in targen with -l 100. + +* Fix crash in colprof when -s/S and -p are used together. + +* Fix very major bug in illumread. It wasn't actually working + at all since V1.4.0. + +* Fix poor handling of corrupted .ccmx and .ccss files. + +* Fix endless loop bug in dispcal verify. + +* Fix bug in collink -iaw when the destination profile + is a matrix + gamma type. + +* Add -z option to ccxxmake to allow setting separate display type + for reference instrument. + +* Fix XDG_CONFIG_HOME and XDG_CONFIG_DIRS environment variable names. + +* Fix occasional timout in specbos on reading spectral. + +* Added preliminary support for ColorHug2 + +* Fixed bug in colverify -L if one of the Normalise options isn't used. + +* Added capability of using the Google ChromeCast as a test + patch generator for Video displays. If you are running on + Linux, you might have to check that your firewall is configured + to allow TCP ports 8081 for this to work, if it + falls back to the Default receiver. Accuracy is OK, but + not as good as main display or MadTPG, due to ChromeCast + using YCbCr video encoding and upsizing of rasters sent to it. + +* Fixed problem with certain .ccmx files note + being recognisd for -y option. + +* Added profcheck -s flag to output delta E orderd patch + list with -v2. + +* Fix bug in chartread for DTP20 - it was timing out when + a off-line chart was being loaded, or an on-line chart was being read. + +* Fix bug in xicc/xicc.c & xicc/xlut.c that sometimes causes bad B2A + tables due to the black point being a NaN. + (This was noticed on code compiled on Ubuntu 14.) + +* Changed Linux udev/hotplug files to be more compatible + with colord, so that colord 69-cd-sensors.rules file + can be upgraded by replacing with 55-Argyll.rules. + +* Fixed bug in tiffgamut when handling .jpg files. Some + pixels were being computed with the wrong values. + +* Added collink -I[gG][:p.p]:x.x options that allows an output offset + gamma curve be targetted instead of BT1886. Like dispcal, this + also allows a hybrid between input black offset (BT.1886-like) and + pure output black offset curves. The -I[bB] option also accepts + an option output proportion value (:p.p), and that + -I[bB]:p.p:x.x has exactly the same effect as -I[gG]:p.p:x.x. + Note using output black offset tends to loose shadow + detail compared to input black offset (BT.1886-like). + + The -I[bBgG] flags now substitute a BT.1886-like EOTF + for the native EOTF of the matrix input profile, rather than + applying an Rec709 to BT.1886 transform. This change has no + impact on source colorspaces that use the Rec709 encoding curve. + +* Added dispcal -b black point hack. This forces the + input zero to map to the output zero, which can be useful + with displays that are well behaved and have a very dark + black point, which an instrument is unable to measure precisely. + +* Added collink -b black point hack. This forces the + input zero to map to the output zero for RGB->RGB links, + which can be useful with displays that are well behaved + and have a very dark black point, which an instrument is + unable to measure precisely. + +* Added nonadaptive mode to i1d3. This allows fast measurement + with much lower accuracy for dark colors. + +* Changes to inst API to accomodate display technology + setting and retrival from instrument. + Also fixed setting custom matrix or ccss so that + other required details (display type & cbid) can + be provided. This now means that the instrument will + automatically configured when a ccmx is loaded. + +* Changed dispwin/dispsup patch delay calculations + (including matching code in targen) to adopt a more + sophisticated display settling model using the display + techology type. + +* Changed dispwin/dispsup patch delay calculations to allow + for a separate instrument reaction time parameter. + +* Added preset list of display techologies to select from + in ccxxmake. The -T option is deprecated, and the required + -t option replaces it. Used "ccxxmake -?? or -t?" to list + display technology types to choose from. + +* Added Klein K10-A instrument support. + +* Fixed bug in hcfr driver which prevented operation. + +* Fixed bug in chartread which caused high res mode to + be used when the -T flag is used. + +* Switched dispcal -R Video LUT entry bit depth algorithm. + +* Added IRIDAS .cube 3DLut format support to collink. + +* Added -O option to spotread that makes it do calibration + or one measurement and then exit. + +* Added better support for installing the Spyder1 firmware. + Simplified the Spyder PLD loading for applications + by modifying setup_spyd2(); + +* Added a -P prune option to profcheck, that creates a + .ti3 file pruned of any patches that have a delta E fit error + greater than a threshold. This may be of use in eliminating + bad reading values from a measurement set. + +* Added histogram plot option -h to both profcheck and verify. + +* Added ls2ti3 tool to convert LightSpace .bcs files to .ti3. + +* Fixed some time measurement bugs in OS X and Linux + USB drivers that mainly affect the DTP92 & DTP94. + +* Simplified the OS X USB drivers. + +* Fixed bug in DTP20 driver where it fails to wait for + a calibration to complete. + +* Fixed collink to more accuratly encode values + for the eeColor 3DLut, as well as change the + BT1886 black point mapping to be more accurate. + +* Added a dispread & fakeread -Z option to set the number of bits + to quantize the test values to. This defaults + to 8 for TV encoded ouput, and using the -Z option may improve + profiling accuracy on systems with limited bit depth + control over their displays. + +* Add support for other OEM versions of the i1d2 and i1d3 colorimeter. + +* Fixed bug in targen - the -V dark emphasis wasn't being + applied to OFPS generated points. + +* Added ColorCheckerSG.ti2 file to ref/, so that a reference file + can be created using chartread. + +* Make sure that if an instrument display reading is interrupted by a + forced calibration, that the user is asked to place it back on the + display before resuming the measurements. + +* Make sure that checking whether an instrument wants calibration + (ie. needs_calibration() or get_n_a_cals()) does not change its + state, requiring calibration due to calibrations being + too old. + Version 1.6.3 (26 January 2014) ------------- @@ -102,6 +309,12 @@ Version 1.6.2 - (19th November 2013) * Fix bug in -H flag in ccxxmake, chartread, dispcal, dispread, illumread & spotread so that it works once again. +* Changed OS X VideoLut access code to issue a warning if the + frame buffer bit depth does not match the gamma table depth, + rather than erroring out due to a bug in OS X. The gamma table + depth is the number actually used, and reports are that this + works. + Version 1.6.1 (30th September 2013) ------------- diff --git a/namedc/Jamfile b/namedc/Jamfile new file mode 100644 index 0000000..62d4c7e --- /dev/null +++ b/namedc/Jamfile @@ -0,0 +1,21 @@ + +# Jamfile for namedc library + +#PREF_CCFLAGS = $(CCOPTFLAG) ; # Turn optimisation on +PREF_CCFLAGS = $(CCDEBUGFLAG) ; # Debugging flags +PREF_LINKFLAGS = $(LINKDEBUGFLAG) ; + +HDRS = ../h ../icc ../cgats ../numlib ../xicc ../spectro ../xml ; + +# mXML library +Library libnamedc : namedc.c ; + +LINKLIBS = ./libnamedc ../xicc/libxicc ../spectro/libconv ../icc/libicc ../cgats/libcgats + ../plot/libplot ../numlib/libui ../numlib/libnum ../xml/libmxml ; + +# Individual stand alone test of namedc +MainVariant namedc : namedc.c : : STANDALONE_TEST ; + +# Conversion utility +Main txt2iccnc : txt2iccnc.c ; + diff --git a/namedc/License.txt b/namedc/License.txt new file mode 100644 index 0000000..a871fcf --- /dev/null +++ b/namedc/License.txt @@ -0,0 +1,662 @@ + GNU AFFERO GENERAL PUBLIC LICENSE + Version 3, 19 November 2007 + + Copyright (C) 2007 Free Software Foundation, Inc. + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + + Preamble + + The GNU Affero General Public License is a free, copyleft license for +software and other kinds of works, specifically designed to ensure +cooperation with the community in the case of network server software. + + The licenses for most software and other practical works are designed +to take away your freedom to share and change the works. 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Interpretation of Sections 15 and 16. + + If the disclaimer of warranty and limitation of liability provided +above cannot be given local legal effect according to their terms, +reviewing courts shall apply local law that most closely approximates +an absolute waiver of all civil liability in connection with the +Program, unless a warranty or assumption of liability accompanies a +copy of the Program in return for a fee. + + END OF TERMS AND CONDITIONS + + How to Apply These Terms to Your New Programs + + If you develop a new program, and you want it to be of the greatest +possible use to the public, the best way to achieve this is to make it +free software which everyone can redistribute and change under these terms. + + To do so, attach the following notices to the program. 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If not, see . + +Also add information on how to contact you by electronic and paper mail. + + If your software can interact with users remotely through a computer +network, you should also make sure that it provides a way for users to +get its source. For example, if your program is a web application, its +interface could display a "Source" link that leads users to an archive +of the code. There are many ways you could offer source, and different +solutions will be better for different programs; see section 13 for the +specific requirements. + + You should also get your employer (if you work as a programmer) or school, +if any, to sign a "copyright disclaimer" for the program, if necessary. +For more information on this, and how to apply and follow the GNU AGPL, see +. + diff --git a/namedc/Readme.txt b/namedc/Readme.txt new file mode 100644 index 0000000..4cd0c37 --- /dev/null +++ b/namedc/Readme.txt @@ -0,0 +1 @@ +Library for loading named color files of varoius types. diff --git a/namedc/afiles b/namedc/afiles new file mode 100644 index 0000000..cd1bf61 --- /dev/null +++ b/namedc/afiles @@ -0,0 +1,7 @@ +afiles +Readme.txt +License.txt +Jamfile +namedc.c +namedc.h +txt2iccnc.c diff --git a/namedc/namedc.c b/namedc/namedc.c new file mode 100644 index 0000000..d1dece9 --- /dev/null +++ b/namedc/namedc.c @@ -0,0 +1,1385 @@ + +/* + * Argyll Color Correction System + * Named Color Access Library + * + * Author: Graeme W. Gill + * Date: 3/12/2013 + * + * Copyright 2013 Graeme W. Gill + * All rights reserved. + * + * This material is licenced under the GNU AFFERO GENERAL PUBLIC LICENSE Version 3 :- + * see the License.txt file for licencing details. + */ + +/* + * Currently supports CxF2, CxF3 & ICC names color profiles. + */ + +/* + * TTBD: + * + * Probably want to add some other formst: + * (see + * and ) + * + * Adobe .aco + * .acb + * .acbl + * .ase + * .bcf + * corel .cpl + * corel .xml + * autocad .acb RGB only + * + * and lower quality RGB formats: + * + * Adobe .acf ?? May support Lab + * corel .acb + * + * Paint Shop Pro .pal ??? + * + * RAL ? + */ + +#undef DEBUG + +#include +#include +#include +#include +#include +#include "copyright.h" +#include "aconfig.h" +#ifndef SALONEINSTLIB +#include "numlib.h" +#include "icc.h" +#else +#include "numsup.h" +#endif +#include "conv.h" +#include "cgats.h" +#include "xspect.h" +#include "mxml.h" +#include "namedc.h" +#ifdef STANDALONE_TEST +#include "ui.h" +#endif /* STANDALONE_TEST */ + +#ifndef STANDALONE_TEST + +# define DEB6 6 +# define DEB4 4 + +#ifdef NT /* You'd think there might be some standards.... */ +# ifndef __BORLANDC__ +# define stricmp _stricmp +# endif +#else +# define stricmp strcasecmp +#endif + +/* Forward declarations */ +static void clear_namedc(namedc *p); +static void clear_nce(nce *p); + +static ORD32 do_hash(ORD32 hash, const char *s) { + int i; + for (i = 0; s[i] != '\000'; i++) { + hash += s[i]; + hash += (hash << 10); + hash ^= (hash >> 6); + } + return hash; +} + +static int do_hash2(const char *s1, const char *s2) { + ORD32 hash; + + hash = do_hash(0, s1); + hash = do_hash(hash, s2); + + return (int)hash; +} + +/* Compare while ignoring possible prefix on s1 */ +static int pfxcmp(const char *s1, const char *s2) { + const char *cp; + + if ((cp = strchr(s1, ':')) == NULL) + cp = s1; + else + cp++; + + return strcmp(cp, s2); +} + +/* XML data type callback for mxmlLoadFile() */ +mxml_type_t +type_cb(mxml_node_t *node) { + mxml_node_t *parent = mxmlGetParent(node); + const char *pname; + const char *name = node->value.element.name; + + if (parent == NULL) + return MXML_TEXT; + + pname = parent->value.element.name; + +// printf("~1 type_cb got node named '%s'\n",name); + + if ((pfxcmp(pname, "ColorCIELab") == 0 + || pfxcmp(pname, "ColorSpaceCIELab") == 0) + && (pfxcmp(name, "L") == 0 + || pfxcmp(name, "A") == 0 + || pfxcmp(name, "B") == 0)) + return MXML_REAL; + + if ((pfxcmp(pname, "ColorCIEXYZ") == 0 + || pfxcmp(pname, "ColorSpaceCIEXYZ") == 0) + && (pfxcmp(name, "X") == 0 + || pfxcmp(name, "Y") == 0 + || pfxcmp(name, "Z") == 0)) + return MXML_REAL; + + // ReflectanceSpectrum + // Example doesn't have NumPoints, Increment + // + // 0.0580 0.0594 0.0594 0.0584 0.0581 0.0591 0.0599 0.0601 0.0603 0.0610 0.0634 0.0695 0.0760 0.0786 0.0798 0.0826 0.0897 0.1024 0.1197 0.1350 0.1434 0.1455 0.1499 0.1594 0.1721 0.1842 0.1913 0.1928 0.1878 0.1734 0.1704 + + if ((pfxcmp(pname, "ColorSRGB") == 0 + || pfxcmp(pname, "ColorSpaceSRGB") == 0) + && (pfxcmp(name, "R") == 0 + || pfxcmp(name, "G") == 0 + || pfxcmp(name, "B") == 0)) + return MXML_REAL; + + if ((pfxcmp(pname, "ColorCMYK") == 0 + || pfxcmp(pname, "ColorSpaceCMYK") == 0) + && (pfxcmp(name, "Cyan") == 0 + || pfxcmp(name, "Magenta") == 0 + || pfxcmp(name, "Yellow") == 0 + || pfxcmp(name, "Black") == 0)) + return MXML_REAL; + + if ((pfxcmp(pname, "FileInformation") == 0 + || pfxcmp(pname, "Header") == 0) + && (pfxcmp(name, "Creator") == 0 + || pfxcmp(name, "CreationDate") == 0 + || pfxcmp(name, "Description") == 0)) + return MXML_OPAQUE; /* Don't split strings up */ + + if ((pfxcmp(pname, "IlluminationOptions") == 0 + || pfxcmp(pname, "TristimulusSpec") == 0 + || pfxcmp(pname, "ColorSpaceSpecificationSpectrumTristimulus") == 0) + && (pfxcmp(name, "Illuminant") == 0 + || pfxcmp(name, "Observer") == 0 + || pfxcmp(name, "FieldOfView") == 0)) + return MXML_OPAQUE; /* Don't split strings up */ + + + return MXML_TEXT; +} + + +void sax_cb(mxml_node_t *node, mxml_sax_event_t event, void *data) { + namedc *p = (namedc *)data; + + if (event == MXML_SAX_ELEMENT_OPEN) { + const char *pname = mxmlGetElement(node); + + if (pfxcmp(pname, "Resources") == 0) { +//printf("~1 open of Resources\n"); + p->indata = 1; + } + + if ((p->options & NAMEDC_OP_NODATA) == 0 + || !p->indata) { +//printf("~1 options 0x%x, indata %d, retaining '%s'\n",p->options,p->indata,pname); +//a1logd(p->log, 4, "sax_cb: retaining %s\n",pname); + mxmlRetain(node); + } + + } else if (event == MXML_SAX_DIRECTIVE) { + mxmlRetain(node); + } else if (event == MXML_SAX_DATA) { + /* If the parent was retained, then retain this data node as well. */ + if (mxmlGetRefCount(mxmlGetParent(node)) > 1) { + mxmlRetain(node); + } + } else if (event == MXML_SAX_ELEMENT_CLOSE) { + const char *pname = mxmlGetElement(node); + if(pfxcmp(pname, "Resources") == 0) { +//printf("~1 close of Resources\n"); + p->indata = 0; + } + } +} + + +/* Return a temporary key with prefix */ +char *pfx(namedc *p, char *key) { + if (p->pfx[0] == '\000') + return key; + + snprintf(p->prefix, 200, "%s:%s", p->pfx, key); + + return p->prefix; +} + +/* Return a temporary key with prefix at front and after each '/' */ +char *pfxp(namedc *p, char *path) { + char *cp = p->prefix; + char *sp, *ep; + int plen, slen; + + if (p->pfx[0] == '\000') + return path; + + plen = strlen(p->pfx); + + /* Figure out the first source key */ + sp = path; + if ((ep = strchr(sp, '/')) != NULL) { + slen = ep - sp; + ep++; /* Point beyond '/' */ + } else { + slen = strlen(sp); + ep = sp + slen; /* point at '\000' */ + } + + for (;;) { + if ((NAMEDC_PLEN -1 -(cp - p->prefix)) < (plen + 1 + slen)) + break; /* No room for prefix + path element */ + + strcpy(cp, p->pfx); + cp += plen; + *cp++ = ':'; + strncpy(cp, sp, slen); + cp += slen; + + /* Figure out the next source key */ + sp = ep; + + if ((ep = strchr(sp, '/')) != NULL) { + slen = ep - sp; + ep++; /* Point beyond '/' */ + } else { + slen = strlen(sp); + ep = sp + slen; /* point at '\000' */ + } + + if (slen <= 0) /* No more path elements */ + break; + + if ((NAMEDC_PLEN -1 -(cp - p->prefix)) < 1) + break; /* No room for '/' */ + *cp++ = '/'; + } + *cp++ = '\000'; + + return p->prefix; +} + +/* Return a temporary key with suffix */ +char *sfx(namedc *p, char *key) { + if (p->pfx[0] == '\000') + return key; + + snprintf(p->prefix, 200, "%s:%s", key, p->pfx); + + return p->prefix; +} + +/* Read in a namedc from a cxf3 file */ +/* Return nz on error */ +static int read_cxf(namedc *p, const char *filename, int options) { + FILE *fp; + char *pfilename; + mxml_node_t *tree, *cxf, *pnode, *node; + const char *attr, *name; + int cxf2 = 0; + int i, j; + + a1logd(p->log, 1, "read_cxf: file '%s' options 0x%x\n",filename,options); + + if (p->filename == NULL) { + if ((pfilename = strdup(filename)) == NULL) { + snprintf(p->err, NAMEDC_ERRL, "Malloc of filename failed"); + a1logd(p->log, 1, "read_cxf: %s\n",p->err); + return p->errc = 2; + } + clear_namedc(p); + p->filename = pfilename; + } + p->options = options; + + if ((fp = fopen(p->filename, "r")) == NULL) { + snprintf(p->err, NAMEDC_ERRL, "Opening XML file '%s' failed",p->filename); + a1logd(p->log, 1, "read_cxf: %s\n",p->err); + return p->errc = 1; + } + +#ifdef NEVER + tree = mxmlLoadFile(NULL, fp, type_cb); +#else + p->indata = 0; + tree = mxmlSAXLoadFd(NULL, fileno(fp), type_cb, sax_cb, (void *)p); +#endif + fclose(fp); + + if (tree == NULL) { + snprintf(p->err, NAMEDC_ERRL, "Parsing XML file '%s' failed",p->filename); + a1logd(p->log, 1, "read_cxf: %s\n",p->err); + return p->errc = 1; + } + + if ((cxf = mxmlFindElement(tree, tree, NULL, NULL, NULL, MXML_DESCEND_FIRST)) == NULL + || mxmlGetType(cxf) != MXML_ELEMENT) { + snprintf(p->err, NAMEDC_ERRL, "Failed to find top element in '%s'",p->filename); + a1logd(p->log, 1, "read_cxf: %s\n",p->err); + mxmlDelete(tree); + return p->errc = 1; + } + name = cxf->value.element.name; + + if ((attr = strchr(cxf->value.element.name, ':')) != NULL) { + int len = attr - name; + if (len > 99) + len = 99; + strncpy(p->pfx, name, len); + p->pfx[len] = '\000'; + } else { + p->pfx[0] = '\000'; + } + + a1logd(p->log, 4, "read_cxf: prefix '%s'\n",p->pfx); + + if (strcmp(name, pfx(p, "CxF")) != 0) { + snprintf(p->err, NAMEDC_ERRL, "Top element not called CxF in '%s'",p->filename); + a1logd(p->log, 1, "read_cxf: %s\n",p->err); + mxmlDelete(tree); + return p->errc = 1; + } + + /* Check that its CxF3 */ + if ((attr = mxmlElementGetAttr(cxf, sfx(p, "xmlns"))) == NULL) { + snprintf(p->err, NAMEDC_ERRL, "Failed to find CxF attribute %s in '%s'",sfx(p, "xmlns"), p->filename); + a1logd(p->log, 1, "read_cxf: %s\n",p->err); + mxmlDelete(tree); + return p->errc = 1; + } + + if (strcmp(attr, "http://colorexchangeformat.com/CxF3-core") != 0) { + if (strcmp(attr, "http://colorexchangeformat.com/v2") != 0) { + snprintf(p->err, NAMEDC_ERRL, "File '%s' is not CxF format",p->filename); + a1logd(p->log, 1, "read_cxf: %s\n",p->err); + mxmlDelete(tree); + return p->errc = 1; + } else { + cxf2 = 1; + a1logd(p->log, 1, "read_cxf: This is a CxF2 file\n"); + } + } else { + a1logd(p->log, 1, "read_cxf: This is a CxF3 file\n"); + } + + /* Grab the description */ + if (cxf2) { + if ((node = mxmlFindPathNode(cxf, pfxp(p,"Palette"))) == NULL + || (name = mxmlElementGetAttr(node, "PaletteName")) == NULL) + name = NULL; + + if (name == NULL) + name = p->filename; + if ((p->description = strdup(name)) == NULL) { + snprintf(p->err, NAMEDC_ERRL, "Malloc of description string failed"); + a1logd(p->log, 1, "read_cxf: %s\n",p->err); + mxmlDelete(tree); + return p->errc = 2; + } + a1logd(p->log, 2, "read_cxf: description '%s'\n",p->description); + + p->hash = do_hash2(p->filename, p->description); + + } else { /* else cxf3 */ + if ((node = mxmlFindPathNode(cxf, pfxp(p,"FileInformation/Description"))) == NULL) + name = NULL; + else + name = mxmlGetOpaque(node); + if (name == NULL) + name = p->filename; + if ((p->description = strdup(name)) == NULL) { + snprintf(p->err, NAMEDC_ERRL, "Malloc of description string failed"); + a1logd(p->log, 1, "read_cxf: %s\n",p->err); + mxmlDelete(tree); + return p->errc = 2; + } + a1logd(p->log, 2, "read_cxf: description '%s'\n",p->description); + + p->hash = do_hash2(p->filename, p->description); + } + + if ((p->options & NAMEDC_OP_NODATA) == 0) { + char *SampleKey = NULL; + char *SampleNameKey = NULL; + char *SampleLabKey = NULL; + char *SampleXYZKey = NULL; + char *SampleCMYKKey = NULL; + const char *colorSpecification = NULL; /* cxf3 ColorSpecification of Lab or XYZ */ + + if (cxf2) { + /* Locate the Palette/ColorSet node */ + if ((pnode = mxmlFindPathNode(cxf, pfxp(p,"Palette/ColorSet"))) == NULL) { + snprintf(p->err, NAMEDC_ERRL, "Failed to find Resources/ObjectCollection in '%s'",p->filename); + a1logd(p->log, 1, "read_cxf: %s\n",p->err); + mxmlDelete(tree); + return p->errc = 1; + } + SampleKey = "Color"; + SampleNameKey = "ColorName"; + SampleLabKey = "ColorSpaceCIELab"; + SampleXYZKey = "ColorSpaceCIEXYZ"; + SampleCMYKKey = "ColorSpaceCMYK"; + + } else { + /* Locate the Resources/ObjectCollection node */ + if ((pnode = mxmlFindPathNode(cxf, pfxp(p,"Resources/ObjectCollection"))) == NULL) { + snprintf(p->err, NAMEDC_ERRL, "Failed to find Resources/ObjectCollection in '%s'",p->filename); + a1logd(p->log, 1, "read_cxf: %s\n",p->err); + mxmlDelete(tree); + return p->errc = 1; + } + SampleKey = "Object"; + SampleNameKey = "Name"; + SampleLabKey = "ColorCIELab"; + SampleXYZKey = "ColorCIEXYZ"; + SampleCMYKKey = "ColorCMYK"; + } + + /* - - - - - - - - - - - - */ + /* Read all the colors. */ + /* Start with first node */ + node = mxmlFindElement(pnode, pnode, pfx(p,SampleKey), NULL, NULL, MXML_DESCEND_FIRST); + for (i = 0; node != NULL; i++) { + int j; + mxml_node_t *ppvals, *pvals, *val; + const char *name; + double Lab[3]; + int Lab_v = 0; + double dev[MAX_CHAN]; + int dev_n = 0; + icColorSpaceSignature devSig = icMaxEnumData; + + if (mxmlGetType(node) != MXML_ELEMENT) { + a1logd(p->log, DEB6, "read_cxf: skipping non element node type %d\n",mxmlGetType(node)); + goto next; + } + a1logd(p->log, DEB6, "read_cxf: read node '%s'\n",node->value.element.name); + + if (strcmp(node->value.element.name, pfx(p,SampleKey)) != 0) { + a1logd(p->log, DEB6, "read_cxf: skipping non %s node\n",SampleKey); + goto next; + } + + if (!cxf2) { + /* Get the ObjectType attribute of Object */ + if ((attr = mxmlElementGetAttr(node, "ObjectType")) == NULL) { + a1logd(p->log, DEB6, "read_cxf: skipping node without ObjectType\n"); + goto next; /* Skip this one */ + } + + /* Check the attribute value */ + if (strcmp(attr, "Standard") != 0) { + a1logd(p->log, DEB6, "read_cxf: skipping node with ObjectType = '%s'\n",attr); + goto next; /* Skip this one */ + } + } + + if ((attr = mxmlElementGetAttr(node, SampleNameKey)) == NULL) { + a1logd(p->log, DEB6, "read_cxf: skipping without %s\n",SampleNameKey); + goto next; /* Skip this one */ + } + name = attr; + + a1logd(p->log, DEB4, "read_cxf: got color %d name '%s'\n",i,name); + + if (!cxf2) { + if ((ppvals = mxmlFindElement(node, node, pfx(p,"ColorValues"), NULL, NULL, MXML_DESCEND_FIRST)) == NULL) { + a1logd(p->log, DEB4, "read_cxf: no reference ColorValuesname - skipping\n"); + goto next; + } + } else { + ppvals = node; + } + + if ((p->options & NAMEDC_OP_NOSPEC) == 0) { + /* ~~~~9999 should look for spectral */ + } + + /* See if there is ColorCIELab */ + if ((pvals = mxmlFindElement(ppvals, ppvals, pfx(p,SampleLabKey), NULL, NULL, MXML_DESCEND_FIRST)) != NULL) { + char *key[3] = { "L", "A", "B" }; + + /* Check which color specification is being used with Lab */ + if (!cxf2 && colorSpecification == NULL) { + colorSpecification = mxmlElementGetAttr(pvals, "ColorSpecification"); + } + + for (j = 0; j < 3; j++) { + if ((val = mxmlFindElement(pvals, pvals, pfx(p, key[j]), NULL, NULL, MXML_DESCEND_FIRST)) == NULL) { + a1logd(p->log, DEB6, "read_cxf: failed to find ColorCIELab component %s\n",key[j]); + break; /* oops */ + } + Lab[j] = mxmlGetReal(val); + a1logd(p->log, DEB6, "read_cxf: got ColorCIELab component %s value %f\n",key[j],Lab[j]); + } + if (j >= 3) + Lab_v = 1; + } + + if (!Lab_v) { + + a1logd(p->log, DEB6, "read_cxf: no valid ColorCIELab value, look for XYZ\n"); + + /* See if there is ColorCIEXYZ instead */ + if ((pvals = mxmlFindElement(ppvals, ppvals, pfx(p,SampleXYZKey), NULL, NULL, MXML_DESCEND_FIRST)) != NULL) { + char *key[3] = { "X", "Y", "Z" }; + + /* Check which color specification is being used with Lab */ + if (!cxf2 && colorSpecification == NULL) { + colorSpecification = mxmlElementGetAttr(pvals, "ColorSpecification"); + } + + for (j = 0; j < 3; j++) { + if ((val = mxmlFindElement(pvals, pvals, pfx(p, key[j]), NULL, NULL, MXML_DESCEND_FIRST)) == NULL) { + a1logd(p->log, DEB6, "read_cxf: failed to find ColorCIEXYZ component %s\n",key[j]); + break; /* oops */ + } + Lab[j] = mxmlGetReal(val); + a1logd(p->log, DEB6, "read_cxf: got ColorCIEXYZ component %s value %f\n",key[j],Lab[j]); + } + if (j >= 3) { + icmXYZ2Lab(&icmD50, Lab, Lab); + Lab_v = 1; + } + } + } + + if (!Lab_v) { + a1logd(p->log, DEB6, "read_cxf: no CIE value found - skipping color\n"); + goto next; + } + + /* Read any device color values */ + if (!cxf2) { + if ((ppvals = mxmlFindElement(node, node, pfx(p,"DeviceColorValues"), NULL, NULL, MXML_DESCEND_FIRST)) != NULL) { + + a1logd(p->log, DEB4, "read_cxf: got DeviceColorValues\n"); + } + } + + if (ppvals != NULL) { + + // ~~99 could add read of other device values here + + /* See if there is ColorCMYK */ + if ((pvals = mxmlFindElement(ppvals, ppvals, pfx(p,SampleCMYKKey), NULL, NULL, MXML_DESCEND_FIRST)) != NULL) { + char *key[4] = { "Cyan", "Magenta", "Yellow", "Black" }; + + a1logd(p->log, DEB4, "read_cxf: got ColorCMYK\n"); + for (j = 0; j < 4; j++) { + if ((val = mxmlFindElement(pvals, pvals, pfx(p, key[j]), NULL, NULL, MXML_DESCEND_FIRST)) == NULL) { + a1logd(p->log, DEB6, "read_cxf: failed to find ColorCMYK component %s\n",key[j]); + break; /* oops */ + } + dev[j] = mxmlGetReal(val); + a1logd(p->log, DEB6, "read_cxf: got ColorCMYK component %s value %f\n",key[j],dev[j]); + } + if (j >= 4) { + dev_n = j; + devSig = icSigCmykData; + } + } + } + + /* Add an entry */ + if (p->count >= p->count_a) { + unsigned int count_n; + count_n = p->count_a + 4096/sizeof(nce); + + a1logd(p->log, 8, "read_cxf: increasing data array size to %d\n",count_n); + if ((p->data = recalloc(p->data, p->count_a, sizeof(nce), count_n, sizeof(nce))) == NULL) { + snprintf(p->err, NAMEDC_ERRL, "Malloc of data size %d failed",p->count_a); + a1logd(p->log, 1, "read_cxf: %s\n",p->err); + mxmlDelete(tree); + return p->errc = 2; + } + p->count_a = count_n; + } + clear_nce(&p->data[p->count]); + + if ((p->data[p->count].name = strdup(name)) == NULL) { + snprintf(p->err, NAMEDC_ERRL, "Malloc of color name string failed"); + a1logd(p->log, 1, "read_cxf: %s\n",p->err); + mxmlDelete(tree); + return p->errc = 2; + } + + if (Lab_v) { + p->data[p->count].Lab[0] = Lab[0]; + p->data[p->count].Lab[1] = Lab[1]; + p->data[p->count].Lab[2] = Lab[2]; + p->data[p->count].Lab_v = 1; + } + + if (dev_n > 0 && devSig != icMaxEnumData) { + for (j = 0; j < dev_n; j++) + p->data[p->count].dev[j] = dev[j]; + p->data[p->count].dev_n = dev_n; + p->data[p->count].devSig = devSig; + } else { + p->data[p->count].dev_n = 0; + p->data[p->count].devSig = icMaxEnumData; + } + + a1logd(p->log, 8, "read_cxf: added color %d\n",p->count); + + p->count++; + + next:; /* Next color */ + node = mxmlGetNextSibling(node); + } + + /* - - - - - - - - - - - - */ + /* Read extra information */ + if (cxf2) { + /* Grab the creator */ + if ((node = mxmlFindPathNode(cxf, pfxp(p,"Preamble/Header/Creator"))) == NULL) + name = NULL; + else + name = mxmlGetOpaque(node); + + if (name == NULL) + name = "[Unknown]"; + if ((p->creator = strdup(name)) == NULL) { + snprintf(p->err, NAMEDC_ERRL, "Malloc of creator string failed"); + a1logd(p->log, 1, "read_cxf: %s\n",p->err); + mxmlDelete(tree); + return p->errc = 2; + } + a1logd(p->log, 2, "read_cxf: creator '%s'\n",p->creator); + + /* Grab the illuminant type */ + if ((node = mxmlFindPathNode(cxf, pfxp(p,"Palette/ColorSet/CollectionColorSpaceSpecification/ColorSpaceSpecificationSpectrumTristimulus/IlluminationOptions/Illuminant"))) == NULL + || (name = mxmlGetOpaque(node)) == NULL) { + a1logd(p->log, 2, "read_cxf: failed to locate Illuminant - assuming D50\n"); + p->ill = icxIT_D50; + } else { + if (strcmp(name, "Illuminant_A") == 0) + p->ill = icxIT_A; + else if (strcmp(name, "Illuminant_D50") == 0) + p->ill = icxIT_D50; + else if (strcmp(name, "Illuminant_D55") == 0) + p->ill = icxIT_D55; + else if (strcmp(name, "Illuminant_D65") == 0) + p->ill = icxIT_D65; + else if (strcmp(name, "Illuminant_E") == 0) + p->ill = icxIT_E; + else { + a1logd(p->log, 2, "read_cxf: Illuminant '%s' unrecognised\n",name); + p->ill = icxIT_D50; + } + } + a1logd(p->log, 2, "read_cxf: illuminant '%s'\n",icm2str(icmIlluminant, p->ill)); + + /* Grab the observer type */ + if ((node = mxmlFindPathNode(cxf, pfxp(p,"Palette/ColorSet/CollectionColorSpaceSpecification/ColorSpaceSpecificationSpectrumTristimulus/FieldOfView"))) == NULL + || (name = mxmlGetOpaque(node)) == NULL) { + a1logd(p->log, 2, "read_cxf: failed to locate FieldOfView - assuming 2 degree\n"); + p->obs = icxOT_CIE_1931_2; + } else { + if (strcmp(name, "FieldOfView_2_Degree") == 0) + p->obs = icxOT_CIE_1931_2; + else if (strcmp(name, "FieldOfView_10_Degree") == 0) + p->obs = icxOT_CIE_1964_10; + else { + a1logd(p->log, 2, "read_cxf: Illuminant '%s' unrecognised\n",name); + p->obs = icxOT_CIE_1931_2; + } + } + a1logd(p->log, 2, "read_cxf: observer '%s'\n",icm2str(icmStandardObserver, p->obs)); + + } else { + int found_io = 0; + + /* Grab the creator */ + if ((node = mxmlFindPathNode(cxf, pfxp(p,"FileInformation/Creator"))) == NULL) + name = NULL; + else + name = mxmlGetOpaque(node); + + if (name == NULL) + name = "[Unknown]"; + if ((p->creator = strdup(name)) == NULL) { + snprintf(p->err, NAMEDC_ERRL, "Malloc of creator string failed"); + a1logd(p->log, 1, "read_cxf: %s\n",p->err); + mxmlDelete(tree); + return p->errc = 2; + } + a1logd(p->log, 2, "read_cxf: creator '%s'\n",p->creator); + + if (colorSpecification != NULL) { + a1logd(p->log, 2, "read_cxf: colorSpecification '%s'\n",colorSpecification); + } + + /* Look through the color specifications and find the one that matches */ + /* the Lab or XYZ color specification */ + pnode = mxmlFindPathNode(cxf, pfxp(p,"Resources/ColorSpecificationCollection/ColorSpecification")); + while (pnode != NULL) { + name = mxmlElementGetAttr(pnode, "Id"); + + if (colorSpecification == NULL + || (name != NULL && strcmp(name, colorSpecification) == 0)) { + + a1logd(p->log, 2, "read_cxf: found node matching colorSpecification '%s'\n",colorSpecification); + + /* Grab the illuminant type */ + if ((node = mxmlFindPathNode(pnode, pfxp(p,"TristimulusSpec/Illuminant"))) == NULL + || (name = mxmlGetOpaque(node)) == NULL) { + a1logd(p->log, 2, "read_cxf: failed to locate Illuminant - assuming D50\n"); + p->ill = icxIT_D50; + } else { + if (strcmp(name, "A") == 0) + p->ill = icxIT_A; + else if (strcmp(name, "D50") == 0) + p->ill = icxIT_D50; + else if (strcmp(name, "D55") == 0) + p->ill = icxIT_D55; + else if (strcmp(name, "D65") == 0) + p->ill = icxIT_D65; + else if (strcmp(name, "E") == 0) + p->ill = icxIT_E; + else { + a1logd(p->log, 2, "read_cxf: Illuminant '%s' unrecognised\n",name); + p->ill = icxIT_D50; + } + } + a1logd(p->log, 2, "read_cxf: illuminant '%s'\n",icm2str(icmIlluminant, p->ill)); + + /* Grab the first observer type */ + if ((node = mxmlFindPathNode(cxf, pfxp(p,"Resources/ColorSpecificationCollection/ColorSpecification/TristimulusSpec/Observer"))) == NULL + || (name = mxmlGetOpaque(node)) == NULL) { + a1logd(p->log, 2, "read_cxf: failed to locate Observer - assuming 2 degree\n"); + p->obs = icxOT_CIE_1931_2; + } else { + if (strcmp(name, "2_Degree") == 0) + p->obs = icxOT_CIE_1931_2; + else if (strcmp(name, "10_Degree") == 0) + p->obs = icxOT_CIE_1964_10; + else { + a1logd(p->log, 2, "read_cxf: Illuminant '%s' unrecognised\n",name); + p->obs = icxOT_CIE_1931_2; + } + } + a1logd(p->log, 2, "read_cxf: observer '%s'\n",icm2str(icmStandardObserver, p->obs)); + found_io = 1; + break; + } + pnode = mxmlGetNextSibling(pnode); + } + + if (!found_io) { + p->ill = icIlluminantD50; + p->obs = icStdObs1931TwoDegrees; + a1logd(p->log, 2, "read_cxf: failed to locate ColorSpecification - assuming D50 2 degree observer\n"); + } + + /* Other values of interest: + Resources/ColorSpecificationCollection/ColorSpecification/ColorSpecification/MeasurementSpec/MeasurementType ie. "Spectrum_Reflectance" + Resources/ColorSpecificationCollection/ColorSpecification/ColorSpecification/MeasurementSpec/CalibrationStandard ie. "GMDI" for Gretag Macbeth Calibration, "XRGA" for X-Rite Graphic Arts Standard. + Resources/ColorSpecificationCollection/ColorSpecification/ColorSpecification/MeasurementSpec/Device/DeviceFilter ie. "Filter_None" "Filter_UVExcluded", + */ + } + } + + mxmlDelete(tree); + + a1logd(p->log, 1, "read_cxf: done - %d colors\n",p->count); + return 0; +} + +/* Read in a namedc from a ICC file */ +/* Return nz on error */ +static int read_icc(namedc *p, const char *filename, int options) { + char *pfilename; + icmFile *fp; + icc *icco; + + a1logd(p->log, 1, "read_icc: file '%s' options 0x%x\n",filename,options); + + if (p->filename == NULL) { + if ((pfilename = strdup(filename)) == NULL) { + snprintf(p->err, NAMEDC_ERRL, "Malloc of filename failed"); + a1logd(p->log, 1, "read_icc: %s\n",p->err); + return p->errc = 2; + } + clear_namedc(p); + p->filename = pfilename; + } + p->options = options; + + /* Open up the file for reading */ + if ((fp = new_icmFileStd_name(p->filename,"r")) == NULL) { + snprintf(p->err, NAMEDC_ERRL, "Opening ICC file '%s' failed",p->filename); + a1logd(p->log, 1, "read_icc: %s\n",p->err); + return p->errc = 1; + } + + if ((icco = new_icc()) == NULL) { + snprintf(p->err, NAMEDC_ERRL, "Creation ICC object failed"); + a1logd(p->log, 1, "read_icc: %s\n",p->err); + fp->del(fp); + return p->errc = 1; + } + + if (icco->read(icco, fp, 0) != 0) { + snprintf(p->err, NAMEDC_ERRL, "Failed to read '%s'\n",p->filename); + a1logd(p->log, 1, "read_icc: %s\n",p->err); + icco->del(icco); + fp->del(fp); + return p->errc = 1; + } + + if (icco->header->deviceClass != icSigNamedColorClass) { + snprintf(p->err, NAMEDC_ERRL, "Not a named color profile"); + a1logd(p->log, 1, "read_icc: %s\n",p->err); + icco->del(icco); + fp->del(fp); + return p->errc = 1; + } + + if (icco->header->pcs != icSigXYZData + && icco->header->pcs != icSigLabData) { + snprintf(p->err, NAMEDC_ERRL, "Unrecognised PCS"); + a1logd(p->log, 1, "read_icc: %s\n",p->err); + icco->del(icco); + fp->del(fp); + return p->errc = 1; + } + + if (icco->find_tag(icco, icSigNamedColor2Tag) != 0) { + snprintf(p->err, NAMEDC_ERRL, "Can't find ncl2 tag"); + a1logd(p->log, 1, "read_icc: %s\n",p->err); + icco->del(icco); + fp->del(fp); + return p->errc = 1; + } + + { + icmTextDescription *txd; + + /* Try and read the tag from the file */ + if ((txd = (icmTextDescription *)icco->read_tag(icco, icSigProfileDescriptionTag)) == NULL) { + snprintf(p->err, NAMEDC_ERRL, "No description tag"); + a1logd(p->log, 1, "read_icc: %s\n",p->err); + icco->del(icco); + fp->del(fp); + return p->errc = 1; + } + + if ((p->description = strdup(txd->desc)) == NULL) { + snprintf(p->err, NAMEDC_ERRL, "Malloc of description string failed"); + a1logd(p->log, 1, "read_icc: %s\n",p->err); + icco->del(icco); + fp->del(fp); + return p->errc = 2; + } + a1logd(p->log, 2, "read_icc: description '%s'\n",p->description); + } + + p->hash = do_hash2(p->filename, p->description); + + if ((p->options & NAMEDC_OP_NODATA) == 0) { + icmNamedColor *tag; + char name[3 * 32]; + double Lab[3]; + int Lab_v = 0; + double dev[MAX_CHAN]; + int dev_n = 0; + icColorSpaceSignature devSig = icMaxEnumData; + int i, j; + +#ifdef NEVER + /* See if there is a measurementType tag */ + icmMeasurement *meastag; + if ((meastag = (icmMeasurement *)icco->read_tag(icco, icSigMeasurementTag)) != NULL) { + p->ill = meastag->illuminant; + p->obs = meastag->observer; + a1logd(p->log, 2, "read_cxf: assuming D50 illuminant and 2 degree observer\n"); + } else { + p->ill = icIlluminantD50; + p->obs = icStdObs1931TwoDegrees; + } + a1logd(p->log, 2, "read_cxf: illuminant '%s'\n",icm2str(icmIlluminant, p->ill)); + a1logd(p->log, 2, "read_cxf: observer '%s'\n",icm2str(icmStandardObserver, p->obs)); +#endif + + if ((tag = (icmNamedColor *)icco->read_tag(icco, icSigNamedColor2Tag)) == NULL) { + snprintf(p->err, NAMEDC_ERRL, "Can't read ncl2 tag"); + a1logd(p->log, 1, "read_icc: %s\n",p->err); + icco->del(icco); + fp->del(fp); + return p->errc = 1; + } + + for (i = 0; i < tag->count; i++) { + + /* Get the name */ + strcpy(name, tag->prefix); + strcat(name, tag->data[i].root); + strcat(name, tag->suffix); + + a1logd(p->log, DEB4, "read_icc: got color %d name '%s'\n",i,name); + + if (icco->header->pcs == icSigXYZData) { + Lab[0] = tag->data[i].pcsCoords[0]; + Lab[1] = tag->data[i].pcsCoords[1]; + Lab[2] = tag->data[i].pcsCoords[2]; + icmXYZ2Lab(&icmD50, Lab, Lab); + + } else { /* Lab */ + Lab[0] = tag->data[i].pcsCoords[0]; + Lab[1] = tag->data[i].pcsCoords[1]; + Lab[2] = tag->data[i].pcsCoords[2]; + } + Lab_v = 1; + a1logd(p->log, DEB6, "read_icc: got ColorCIELab value %s\n",icmPdv(3, Lab)); + + /* Add any device space */ + devSig = icco->header->colorSpace; + dev_n = icmCSSig2nchan(devSig); + for (j = 0; j < dev_n; j++) + dev[j] = tag->data[i].deviceCoords[j]; + + a1logd(p->log, DEB6, "read_icc: got %s value %s\n", + icm2str(icmColorSpaceSignature, devSig), icmPdv(dev_n, dev)); + + /* Add an entry */ + if (p->count >= p->count_a) { + unsigned int count_n; + count_n = p->count_a + 4096/sizeof(nce); + + a1logd(p->log, 8, "read_icc: increasing data array size to %d\n",count_n); + if ((p->data = recalloc(p->data, p->count_a, sizeof(nce), count_n, sizeof(nce))) == NULL) { + snprintf(p->err, NAMEDC_ERRL, "Malloc of data size %d failed",p->count_a); + a1logd(p->log, 1, "read_icc: %s\n",p->err); + icco->del(icco); + fp->del(fp); + return p->errc = 2; + } + p->count_a = count_n; + } + clear_nce(&p->data[p->count]); + + if ((p->data[p->count].name = strdup(name)) == NULL) { + snprintf(p->err, NAMEDC_ERRL, "Malloc of color name string failed"); + a1logd(p->log, 1, "read_icc: %s\n",p->err); + icco->del(icco); + fp->del(fp); + return p->errc = 2; + } + + if (Lab_v) { + p->data[p->count].Lab[0] = Lab[0]; + p->data[p->count].Lab[1] = Lab[1]; + p->data[p->count].Lab[2] = Lab[2]; + p->data[p->count].Lab_v = 1; + } + + if (dev_n > 0 && devSig != icMaxEnumData) { + for (j = 0; j < dev_n; j++) + p->data[p->count].dev[j] = dev[j]; + p->data[p->count].dev_n = dev_n; + p->data[p->count].devSig = devSig; + } else { + p->data[p->count].dev_n = 0; + p->data[p->count].devSig = icMaxEnumData; + } + + a1logd(p->log, 8, "read_icc: added color %d\n",p->count); + + p->count++; + + next:; /* Next color */ + } + } + + icco->del(icco); + fp->del(fp); + + return 0; +} + +/* Read any format named color files */ +/* Return nz on error */ +static int read_nc(namedc *p, const char *filename, int options) { + int rv; + + if ((p->format == 0 || p->format == 1) + && (rv = read_cxf(p, filename, options)) == 0) { + p->format = 1; + return rv; + } + + if ((p->format == 0 || p->format == 2) + && (rv = read_icc(p, filename, options)) == 0) { + p->format = 2; + return rv; + } + + /* Try other file types here */ + + return rv; +} + + +/* Return the index of the best mataching color, -1 on error. */ +/* Lab[] is assumed to be D50, 2 degree standard observer based CIE value, */ +/* and the spec value should only be provided if this is a reflective or */ +/* transmissive measurement, NULL if emissive. */ +/* If named color library is expects other than D50, 2 degree, then */ +/* it will use the spectral value if not NULL, or chromatically */ +/* adapt the Lab value. */ +/* deType == 0 DE76 */ +/* deType == 1 DE94 */ +/* deType == 2 DE2000 */ +/* if de != NULL, return the delta E */ +int match(struct _namedc *p, double *de, double *pLab, xspect *rspect, int deType) { + int i, bix = -1; + double bde = 1e99; + double Lab[3]; + + if (p->filename == NULL) { /* We haven't been opened */ + snprintf(p->err, NAMEDC_ERRL, "We haven't been opened"); + a1logd(p->log, 1, "match: %s\n",p->err); + return -1; + } + + /* If the colors haven't been read yet, read them now */ + if (p->data == NULL || (p->options & NAMEDC_OP_NODATA)) { + if (read_nc(p, NULL, (p->options & ~NAMEDC_OP_NODATA))) { + a1logd(p->log, 1, "match: on demand data load failed with '%s'\n",p->err); + return -1; + } + a1logd(p->log, 1, "match: after loading there are %d colors\n",p->count); + } + + icmCpy3(Lab, pLab); + + if (p->ill != icIlluminantD50 || p->obs != icStdObs1931TwoDegrees) { + if (rspect != NULL) { + + if (p->sp2cie == NULL) { + if ((p->sp2cie = new_xsp2cie(p->ill, NULL, p->obs, NULL, icSigLabData, 0)) == NULL) { + snprintf(p->err, NAMEDC_ERRL, "creating spetral conversion failed"); + a1logd(p->log, 1, "match: %s\n",p->err); + return -1; + + } + } + + /* Convert spectrum to the XYZ we want */ + p->sp2cie->convert(p->sp2cie, Lab, rspect); + + } else { + if (p->chrom[0][0] <= -1e38) { + double wXYZ[3]; + + // Special case this for a consistent value with ICC profiles + if (p->obs == icxOT_CIE_1931_2 && p->ill == icxIT_D65) { + icmCpy3(wXYZ, icmD65_ary3); + } else { + xsp2cie *tt; + xspect ts; + // Get the XYZ of the given white point for the illuminant and observer + if ((tt = new_xsp2cie(p->ill, NULL, p->obs, NULL, icSigXYZData, 0)) == NULL) { + snprintf(p->err, NAMEDC_ERRL, "creating spetral conversion failed"); + a1logd(p->log, 1, "match: %s\n",p->err); + return -1; + } + if (standardIlluminant(&ts, icxIT_E, 0.0)) { + snprintf(p->err, NAMEDC_ERRL, "match: creating E type spectrum failed"); + a1logd(p->log, 1, "match: %s\n",p->err); + return -1; + } + tt->convert(tt, wXYZ, &ts); + tt->del(tt); + } + icmAry2XYZ(p->dXYZ, wXYZ); + + /* Chreate chromatic adapation matrix from D50 to named color */ + icmChromAdaptMatrix(ICM_CAM_BRADFORD, p->dXYZ, icmD50, p->chrom); + } + icmLab2XYZ(&icmD50, Lab, pLab); + icmMulBy3x3(Lab, p->chrom, Lab); + icmXYZ2Lab(&p->dXYZ, Lab, Lab); + } + } + + if (deType == 0) { + for (i = 0; i < p->count; i++) { + double de = icmLabDEsq(Lab, p->data[i].Lab); + if (de < bde) { + bde = de; + bix = i; + } + } + + } else if (deType == 1) { + for (i = 0; i < p->count; i++) { + double de = icmCIE94sq(Lab, p->data[i].Lab); + if (de < bde) { + bde = de; + bix = i; + } + } + + } else if (deType == 2) { + for (i = 0; i < p->count; i++) { + double de = icmCIE2Ksq(Lab, p->data[i].Lab); + if (de < bde) { + bde = de; + bix = i; + } + } + } else { + snprintf(p->err, NAMEDC_ERRL, "Unnown deType %d",deType); + a1logd(p->log, 1, "match: %s\n",p->err); + return -1; + } + + if (bix < 0) { + snprintf(p->err, NAMEDC_ERRL, "No colors to match against"); + a1logd(p->log, 1, "match: %s\n",p->err); + return -1; + } + if (de != NULL) { + *de = sqrt(bde); + } + return bix; +} + +/* Free an entry */ +static void clear_nce(nce *p) { + if (p != NULL) { + if (p->name != NULL) + free(p->name); + p->name = NULL; + if (p->sp != NULL) + free(p->sp); + p->sp = NULL; + } +} + +/* Free the contents */ +static void clear_namedc(namedc *p) { + if (p != NULL) { + int i; + if (p->filename != NULL) + free(p->filename); + p->filename = NULL; + if (p->creator != NULL) + free(p->creator); + p->creator = NULL; + if (p->description != NULL) + free(p->description); + p->description = NULL; + if (p->data != NULL) { + for (i = 0; i < p->count; i++) + clear_nce(&p->data[i]); + free(p->data); + p->data = NULL; + } + p->count = 0; + } +} + +/* Delete it */ +static void del_namedc(namedc *p) { + if (p != NULL) { + clear_namedc(p); + p->log = del_a1log(p->log); + if (p->sp2cie != NULL) + p->sp2cie->del(p->sp2cie); + free(p); + } +} + +/* Allocate a new, uninitialised namedc */ +/* Note thate black and white points aren't allocated */ +namedc *new_namedc(a1log *log) { + namedc *p; + + a1logd(log, 1, "new_cxf\n"); + + if ((p = (namedc *)calloc(1, sizeof(namedc))) == NULL) { + a1logd(p->log, 1, "new_cxf: calloc failed\n"); + return NULL; + } + + p->log = new_a1log_d(log); + + /* Init method pointers */ + p->del = del_namedc; + p->read_cxf = read_cxf; + p->read_icc = read_icc; + p->read = read_nc; + p->match = match; + + p->chrom[0][0] = -1e38; + + return p; +} + + +/* =========================================================================== */ + +#else /* STANDALONE_TEST */ + +void usage(char *diag, ...) { + fprintf(stderr,"Test namedc library\n"); + fprintf(stderr,"Author: Graeme W. Gill\n"); + if (diag != NULL) { + va_list args; + fprintf(stderr," Diagnostic: "); + va_start(args, diag); + vfprintf(stderr, diag, args); + va_end(args); + fprintf(stderr,"\n"); + } + fprintf(stderr,"usage: namedc [-v level] infile\n"); + fprintf(stderr," -D level Debug level 1-9\n"); + exit(1); +} + +int +main(int argc, char *argv[]) { + int fa,nfa; /* argument we're looking at */ + char inname[MAXNAMEL+1]; + int debug = 0, i; + namedc *p; + + /* Process the arguments */ + for(fa = 1;fa < argc;fa++) { + nfa = fa; /* skip to nfa if next argument is used */ + if (argv[fa][0] == '-') { /* Look for any flags */ + char *na = NULL; /* next argument after flag, null if none */ + + if (argv[fa][2] != '\000') + na = &argv[fa][2]; /* next is directly after flag */ + else { + if ((fa+1) < argc) { + if (argv[fa+1][0] != '-') { + nfa = fa + 1; + na = argv[nfa]; /* next is seperate non-flag argument */ + } + } + } + + if (argv[fa][1] == '?') + usage(NULL); + + /* Debug level */ + else if (argv[fa][1] == 'D') { + fa = nfa; + if (na != NULL) + debug = atoi(na); + } + + else + usage("Unknown option '%c'",argv[fa][1]); + } + else + break; + } + + if (fa >= argc || argv[fa][0] == '-') usage("Missing input filename"); + strncpy(inname,argv[fa++],MAXNAMEL); inname[MAXNAMEL] = '\000'; + + g_log->debug = debug; + + if ((p = new_namedc(g_log)) == NULL) + error("new_namedc failed\n"); + + /* Open non-data */ + if (p->read(p, inname, NAMEDC_OP_NODATA)) { + error("read failed with '%s'\n",p->err); + } + + printf("Palette is '%s'\n",p->description); + { + double Lab[3], de; + int ix; + + Lab[0] = 50.0; + Lab[1] = 20.0; + Lab[2] = -10.0; + + if ((ix = p->match(p, &de, Lab, NULL, 0)) < 0) + error(" match failed with '%s'\n",p->err); + printf("Matched color '%s' with DE76 %f\n",p->data[ix].name,de); + + if ((ix = p->match(p, &de, Lab, NULL, 1)) < 0) + error(" match failed with '%s'\n",p->err); + printf("Matched color '%s' with DE94 %f\n",p->data[ix].name,de); + + if ((ix = p->match(p, &de, Lab, NULL, 2)) < 0) + error(" match failed with '%s'\n",p->err); + printf("Matched color '%s' with DE00 %f\n",p->data[ix].name,de); + } + +#ifdef NEVER + printf("Loaded %d colors\n",p->count); + for (i = 0; i < p->count; i++) { + printf("Color %d name '%s' = %f %f %f\n", + i, p->data[i].name, p->data[i].Lab[0], p->data[i].Lab[1], p->data[i].Lab[2]); + if (p->data[i].devSig != icMaxEnumData) { + printf("%s = %s\n", icm2str(icmColorSpaceSignature, p->data[i].devSig), + icmPdv(p->data[i].dev_n, p->data[i].dev)); + } + } +#endif + p->del(p); + + return 0; +} + + + +#endif /* STANDALONE_TEST */ + + + + + + + + + + + + + + + + + + + + + + + + diff --git a/namedc/namedc.h b/namedc/namedc.h new file mode 100644 index 0000000..cc8917d --- /dev/null +++ b/namedc/namedc.h @@ -0,0 +1,156 @@ +#ifndef NAMEDC_H +#define NAMEDC_H + +/* + * Argyll Color Correction System + * Named color set support. + * + * Author: Graeme W. Gill + * Date: 3/12/2013 + * + * Copyright 2013 Graeme W. Gill + * All rights reserved. + * + * This material is licenced under the GNU AFFERO GENERAL PUBLIC LICENSE Version 3 :- + * see the License2.txt file for licencing details. + * + */ + +/* + * This class provides storage for a list of named colors + * in a file format independent fashiom. + * + * Currently these are all assumed to be reflective colors. + * + * Current implementation is read only, but it could be converted + * to support creating and writing too. + * + */ + +/* ------------------------------------------------------------------------------ */ + +/* An individual named color */ + +struct _nce { + char *name; /* Name in ASCII/UTF-8 */ + + double Lab[3]; /* D50 L*a*b* */ + int Lab_v; /* nz if Lab is valid */ + + xspect *sp; /* Non-NULL if valid spectral reflectance, norm 100% */ + + icColorSpaceSignature devSig; /* Device colorspace signature, icMaxEnumData if invalid */ + int dev_n; /* Number of channels */ + double dev[MAX_CHAN]; /* Optional device values, ie CMYK in % */ + +}; typedef struct _nce nce; + + +struct _namedc { + + char *creator; /* Creator name in ASCII/UTF-8 */ + char *description; /* Description in ASCII/UTF-8 */ + + int hash; /* hash of filename and description */ + + icxIllumeType ill; /* Illuminant values was measured under */ + icxObserverType obs; /* Observer model */ + + unsigned int count; /* Count of named colors */ + unsigned int count_a; /* Allocated number of colors */ + nce *data; /* Array of [count] color values */ + + /* Public: */ + void (*del)(struct _namedc *p); + +#define NAMEDC_OP_NONE 0x0000 +#define NAMEDC_OP_NODATA 0x0001 /* Don't load any data, just description */ +#define NAMEDC_OP_NOSPEC 0x0002 /* Don't load spectral data */ + + /* Read a cxf 3 format named color file */ + /* return nz on error */ + int (*read_cxf)(struct _namedc *p, const char *filename, int options); + + /* Read an ICC format named color file */ + /* return nz on error */ + int (*read_icc)(struct _namedc *p, const char *filename, int options); + + /* Read any format named color files */ + int (*read)(struct _namedc *p, const char *filename, int options); + + /* Return the index of the best mataching color, -1 on error. */ + /* Lab[] is assumed to be D50, 2 degree standard observer based CIE value, */ + /* and the spec value should only be provided if this is a reflective or */ + /* transmissive measurement, NULL if emissive. */ + /* If named color library is expects other than D50, 2 degree, then */ + /* it will use the spectral value if not NULL, or chromatically */ + /* adapt the Lab value. */ + /* deType == 0 DE76 */ + /* deType == 1 DE94 */ + /* deType == 2 DE2000 */ + /* if de != NULL, return the delta E */ + int (*match)(struct _namedc *p, double *de, double *Lab, xspect *spect, int deType); + + /* Houskeeping - should switch this to a1log ? */ +#define NAMEDC_ERRL 1000 + int errc; /* Error code */ + char err[NAMEDC_ERRL]; /* Error message */ + + /* Private: */ + a1log *log; + char *filename; /* So we can lazy read the colors */ + int format; /* 0 = unknown, 1 = cxf, 2 = ICC */ + int options; + int indata; /* State flag for sax_cb() */ + + char pfx[100]; /* Prefix to apply */ +#define NAMEDC_PLEN 500 + char prefix[NAMEDC_PLEN]; /* Temporary buffers to use */ + + /* Color conversions */ + xsp2cie *sp2cie; /* Reflectance or Transmittance to this namedc space */ + double chrom[3][3]; /* Chromatic transform to this namedc space */ + icmXYZNumber dXYZ; /* Named color white point */ + +}; typedef struct _namedc namedc; + +/* Create a new, uninitialised namedc */ +namedc *new_namedc(a1log *log); + +#endif /* NAMEDC_H */ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + diff --git a/namedc/txt2iccnc.c b/namedc/txt2iccnc.c new file mode 100644 index 0000000..3ea1bc9 --- /dev/null +++ b/namedc/txt2iccnc.c @@ -0,0 +1,273 @@ + +/* + * Argyll Color Correction System + * x11 style .txt to ICC Named Color converter + * + * Author: Graeme W. Gill + * Date: 24/20/2014 + * + * Copyright 2014 Graeme W. Gill + * All rights reserved. + * + * This material is licenced under the GNU AFFERO GENERAL PUBLIC LICENSE Version 3 :- + * see the License.txt file for licencing details. + */ + +/* + * TTBD + */ + +#undef DEBUG + +#include +#include +#include +#include +#include +#include "copyright.h" +#include "aconfig.h" +#ifndef SALONEINSTLIB +#include "numlib.h" +#include "icc.h" +#else +#include "numsup.h" +#endif +#include "xspect.h" +#include "ui.h" + +void usage(char *diag, ...) { + fprintf(stderr,"x11 .txt to ICC Named Colors\n"); + fprintf(stderr,"Author: Graeme W. Gill\n"); + if (diag != NULL) { + va_list args; + fprintf(stderr," Diagnostic: "); + va_start(args, diag); + vfprintf(stderr, diag, args); + va_end(args); + fprintf(stderr,"\n"); + } + fprintf(stderr,"usage: txt2iccNC [-v level] description infile outfile\n"); + exit(1); +} + +int +main(int argc, char *argv[]) { + int fa,nfa; /* argument we're looking at */ + int verb = 0; + char desc[MAXNAMEL+1]; + char inname[MAXNAMEL+1]; + char outname[MAXNAMEL+1]; + FILE *ifp; +#define BUFSZ 512 + char buf[BUFSZ]; + icmFile *wr_fp; + icc *wr_icco; + int i, rv; + + /* Process the arguments */ + for(fa = 1;fa < argc;fa++) { + nfa = fa; /* skip to nfa if next argument is used */ + if (argv[fa][0] == '-') { /* Look for any flags */ + char *na = NULL; /* next argument after flag, null if none */ + + if (argv[fa][2] != '\000') + na = &argv[fa][2]; /* next is directly after flag */ + else { + if ((fa+1) < argc) { + if (argv[fa+1][0] != '-') { + nfa = fa + 1; + na = argv[nfa]; /* next is seperate non-flag argument */ + } + } + } + + if (argv[fa][1] == '?') + usage(NULL); + + else if (argv[fa][1] == 'v') + verb = 1; + + else + usage("Unknown option '%c'",argv[fa][1]); + } + else + break; + } + + if (fa >= argc || argv[fa][0] == '-') usage("Missing description"); + strncpy(desc,argv[fa++],MAXNAMEL); desc[MAXNAMEL] = '\000'; + + if (fa >= argc || argv[fa][0] == '-') usage("Missing input filename"); + strncpy(inname,argv[fa++],MAXNAMEL); inname[MAXNAMEL] = '\000'; + + if (fa >= argc || argv[fa][0] == '-') usage("Missing output filename"); + strncpy(outname,argv[fa++],MAXNAMEL); outname[MAXNAMEL] = '\000'; + + if ((ifp = fopen(inname,"r"))==NULL) { + error("Read: Can't open file '%s'",inname); + } + + /* Open up the file for writing */ + if ((wr_fp = new_icmFileStd_name(outname,"w")) == NULL) + error ("Write: Can't open file '%s'",outname); + + if ((wr_icco = new_icc()) == NULL) + error ("Write: Creation of ICC object failed"); + + /* Values that must be set before writing */ + wr_icco->header->deviceClass = icSigNamedColorClass; + wr_icco->header->colorSpace = icSigRgbData; + wr_icco->header->pcs = icSigLabData; + wr_icco->header->renderingIntent = icRelativeColorimetric; + + /* Add the description tag */ + { + icmTextDescription *wo; + if ((wo = (icmTextDescription *)wr_icco->add_tag( + wr_icco, icSigProfileDescriptionTag, icSigTextDescriptionType)) == NULL) + error("Failed to add icmTextDescription"); + + wo->size = strlen(desc)+1; /* Allocated and used size of desc, inc null */ + wo->allocate((icmBase *)wo);/* Allocate space */ + strcpy(wo->desc, desc); /* Copy the string in */ + } + + /* Copyright Tag: */ + { + icmText *wo; + char *crt; + + crt = ""; + + if ((wo = (icmText *)wr_icco->add_tag( + wr_icco, icSigCopyrightTag, icSigTextType)) == NULL) + error("add_tag failed: %d, %s",wr_icco->errc,wr_icco->err); + + wo->size = strlen(crt)+1; /* Allocated and used size of text, inc null */ + wo->allocate((icmBase *)wo);/* Allocate space */ + strcpy(wo->data, crt); /* Copy the text in */ + } + + /* White Point Tag: */ + /* Use the orgininal, non PCS adapted white point */ + { + icmXYZArray *wo; + /* Note that tag types icSigXYZType and icSigXYZArrayType are identical */ + if ((wo = (icmXYZArray *)wr_icco->add_tag( + wr_icco, icSigMediaWhitePointTag, icSigXYZArrayType)) == NULL) + error("add_tag failed: %d, %s",wr_icco->errc,wr_icco->err); + + wo->size = 1; + wo->allocate((icmBase *)wo); /* Allocate space */ + wo->data[0] = icmD65; /* sRGB is D65 */ + } + + /* Add a named color tag */ + { + icmNamedColor *wo; + + if ((wo = (icmNamedColor *)wr_icco->add_tag( + wr_icco, icSigNamedColor2Tag, icSigNamedColor2Type)) == NULL) + error("Adding icmNamedColor tag failed"); + + wo->count = 0; + + /* Read lines and count the colors */ + for (;;) { + double rgb[3]; + char s1[BUFSZ]; + char s2[BUFSZ]; + char s3[BUFSZ]; + + if (fgets(buf, BUFSZ, ifp) == NULL) + break; + + if ((rv = sscanf(buf, " %lf %lf %lf %s %s %s\n",&rgb[0], &rgb[1], &rgb[2], s1, s2, s3)) >= 4) { + wo->count++; + } + } + + wo->nDeviceCoords = 3; /* Num of device coordinates */ + strcpy(wo->prefix,""); /* Prefix for each color name, max 32, null terminated */ + strcpy(wo->suffix,""); /* Suffix for each color name, max 32, null terminated */ + + wo->allocate((icmBase *)wo); /* Allocate named color structures */ + + if (verb) + printf("Counted %d colors\n",wo->count); + + /* Read lines and colors */ + rewind(ifp); + for (i = 0; i < wo->count; i++) { + double rgb[3], lab[3]; + char s1[BUFSZ]; + char s2[BUFSZ]; + char s3[BUFSZ]; + unsigned int j; + + if (fgets(buf, BUFSZ, ifp) == NULL) + break; + + if ((rv = sscanf(buf, " %lf %lf %lf %s %s %s\n",&rgb[0], &rgb[1], &rgb[2], s1, s2, s3)) >= 4) { + rgb[0] /= 255.0; + rgb[1] /= 255.0; + rgb[2] /= 255.0; + if (rv >= 5) { + strcat(s1, " "); + strcat(s1, s2); + } + if (rv >= 6) { + strcat(s1, " "); + strcat(s1, s3); + } + /* Convert from sRGB to Bradford adapted D50 */ + icx_sRGB2XYZ(lab, icmD50_ary3, rgb); + icmXYZ2Lab(&icmD50, lab, lab); + + if (verb) + printf("Got %f %f %f '%s'\n",rgb[0], rgb[1], rgb[2], s1); + + strncpy(wo->data[i].root,s1,31); + wo->data[i].root[31] = '\000'; + + for (j = 0; j < wo->nDeviceCoords; j++) + wo->data[i].deviceCoords[j] = rgb[j]; + for (j = 0; j < 3; j++) + wo->data[i].pcsCoords[j] = lab[j]; + } + } + fclose(ifp); + } + + if ((rv = wr_icco->write(wr_icco, wr_fp, 0)) != 0) + error ("Write file: %d, %s",rv,wr_icco->err); + + wr_icco->del(wr_icco); + wr_fp->del(wr_fp); + + return 0; +} + + + + + + + + + + + + + + + + + + + + + + + + diff --git a/notes.txt b/notes.txt index c15e076..3bcc065 100644 --- a/notes.txt +++ b/notes.txt @@ -116,3 +116,12 @@ available via the web (as examples of how it has been done, and the variety of facilities a CMM may make available.) +============================================================================ +Autotools and some Linux systems expect env vars: + +CFLAGS: C flags, passed during compile AND link (e.g., -O2 -std=c99) +CXXFLAGS: C++ flags, passed during compile AND link (e.g., -O2 -std=c++98) +CPPFLAGS: pre-processor flags, passed ONLY during compile (e.g., -DNDEBUG=1 -Iadditional/include) +LDFLAGS: linker flags, passed ONLY during link (e.g., -export_dynamic -Ladditional/libdir -llib) + +to have effect. diff --git a/numlib/Jamfile b/numlib/Jamfile index dd90e22..87c3c78 100644 --- a/numlib/Jamfile +++ b/numlib/Jamfile @@ -10,8 +10,8 @@ PREF_LINKFLAGS = $(LINKDEBUGFLAG) ; #PREF_LINKFLAGS = $(LINKPROFFLAG) ; # Profile flags # Products -Libraries = libnum ; -Headers = numlib.h ; +Libraries = libnum libui ; +Headers = numlib.h libui.h ; #Install #InstallFile $(DESTDIR)$(PREFIX)/h : $(Headers) ; @@ -26,3 +26,10 @@ LINKLIBS = libnum ; # All test programs are made from a single source file MainsFromSources dnsqtest.c tpowell.c tdhsx.c LUtest.c svdtest.c zbrenttest.c soboltest.c ; +# Compile .c as .m +if $(OS) = MACOSX { + ObjectCcFlags ui : -ObjC ; +} + +# UI setup library +Library libui.lib : ui.c ; diff --git a/numlib/aatree.h b/numlib/aatree.h index 2a6df84..4212b09 100644 --- a/numlib/aatree.h +++ b/numlib/aatree.h @@ -4,7 +4,7 @@ /* Andersson binary balanced tree library - > Created (Julienne Walker): September 10, 2005 + > Created (Julienne Walker): September 10, 2005 This code is in the public domain. Anyone may use it or change it in any way that they see diff --git a/numlib/afiles b/numlib/afiles index dff62ef..29d6699 100644 --- a/numlib/afiles +++ b/numlib/afiles @@ -30,3 +30,5 @@ sobol.h soboltest.c aatree.h aatree.c +ui.h +ui.c diff --git a/numlib/numsup.c b/numlib/numsup.c index a28dcd2..bfa144b 100644 --- a/numlib/numsup.c +++ b/numlib/numsup.c @@ -27,6 +27,7 @@ #include #endif +#define NUMSUP_C #include "numsup.h" /* @@ -239,6 +240,7 @@ void check_if_not_interactive() { #endif + /* Default verbose logging function - print to stdtout */ static void a1_default_v_log(void *cntx, a1log *p, char *fmt, va_list args) { vfprintf(stdout, fmt, args); @@ -328,7 +330,7 @@ a1log *new_a1log_d(a1log *log) { /* Returns NULL */ a1log *del_a1log(a1log *log) { if (log != NULL) { - if (--log->refc == 0) { + if (--log->refc <= 0) { #ifdef NT DeleteCriticalSection(&log->lock); #endif @@ -476,7 +478,7 @@ static void g_loge(char *fmt, ...) { void verbose(int level, char *fmt, ...) { - if (level >= g_log->verb) { + if (g_log->verb >= level) { va_list args; A1LOG_LOCK(g_log); @@ -1423,7 +1425,7 @@ void matrix_print(char *c, double **a, int nr, int nc) { /* Platform independent IEE754 conversions */ /*******************************************/ -/* Cast a native double to an IEEE754 encoded single precision value, */ +/* Convert a native double to an IEEE754 encoded single precision value, */ /* in a platform independent fashion. (ie. This works even */ /* on the rare platforms that don't use IEEE 754 floating */ /* point for their C implementation) */ @@ -1462,7 +1464,7 @@ ORD32 doubletoIEEE754(double d) { return id; } -/* Cast a an IEEE754 encoded single precision value to a native double, */ +/* Convert a an IEEE754 encoded single precision value to a native double, */ /* in a platform independent fashion. (ie. This works even */ /* on the rare platforms that don't use IEEE 754 floating */ /* point for their C implementation) */ @@ -1486,7 +1488,7 @@ double IEEE754todouble(ORD32 ip) { return op; } -/* Cast a native double to an IEEE754 encoded double precision value, */ +/* Convert a native double to an IEEE754 encoded double precision value, */ /* in a platform independent fashion. (ie. This works even */ /* on the rare platforms that don't use IEEE 754 floating */ /* point for their C implementation) */ @@ -1525,7 +1527,7 @@ ORD64 doubletoIEEE754_64(double d) { return id; } -/* Cast a an IEEE754 encode double precision value to a native double, */ +/* Convert a an IEEE754 encode double precision value to a native double, */ /* in a platform independent fashion. (ie. This works even */ /* on the rare platforms that don't use IEEE 754 floating */ /* point for their C implementation) */ diff --git a/numlib/numsup.h b/numlib/numsup.h index b949379..1fb83bc 100644 --- a/numlib/numsup.h +++ b/numlib/numsup.h @@ -34,8 +34,6 @@ extern "C" { #endif -/* =========================================================== */ -/* Should this go in spectro/conv.h ?? */ /* =========================================================== */ /* Platform specific primitive defines. */ /* This really needs checking for each different platform. */ @@ -45,7 +43,16 @@ /* so long shouldn't really be used in any code.... */ /* (duplicated in icc.h) */ -#if (__STDC_VERSION__ >= 199901L) /* C99 */ +/* Use __LP64__ as cross platform 64 bit pointer #define */ +#if !defined(__LP64__) && defined(_WIN64) +# define __LP64__ 1 +#endif + +#ifndef ORD32 + +#if (__STDC_VERSION__ >= 199901L) /* C99 */ \ + || defined(_STDINT_H_) || defined(_STDINT_H) \ + || defined(_SYS_TYPES_H) #include @@ -60,17 +67,11 @@ #define PNTR intptr_t -/* printf format precision specifier */ -#define PF64PREC "ll" - -/* Constant precision specifier */ -#define CF64PREC "LL" - -#ifndef ATTRIBUTE_NORETURN -# define ATTRIBUTE_NORETURN __declspec(noreturn) -#endif +#define PF64PREC "ll" /* printf format precision specifier */ +#define CF64PREC "LL" /* Constant precision specifier */ #else /* !__STDC_VERSION__ */ + #ifdef _MSC_VER #define INR8 __int8 /* 8 bit signed */ @@ -86,15 +87,8 @@ #define vsnprintf _vsnprintf -/* printf format precision specifier */ -#define PF64PREC "I64" - -/* Constant precision specifier */ -#define CF64PREC "LL" - -#ifndef ATTRIBUTE_NORETURN -# define ATTRIBUTE_NORETURN __declspec(noreturn) -#endif +#define PF64PREC "I64" /* printf format precision specifier */ +#define CF64PREC "LL" /* Constant precision specifier */ #else /* !_MSC_VER */ @@ -109,26 +103,87 @@ #define ORD32 unsigned int /* 32 bit unsigned */ #ifdef __GNUC__ -#define INR64 long long /* 64 bit signed - not used in icclib */ -#define ORD64 unsigned long long /* 64 bit unsigned - not used in icclib */ +# define INR64 long long /* 64 bit signed - not used in icclib */ +# define ORD64 unsigned long long /* 64 bit unsigned - not used in icclib */ +# define PF64PREC "ll" /* printf format precision specifier */ +# define CF64PREC "LL" /* Constant precision specifier */ +#endif /* __GNUC__ */ -/* printf format precision specifier */ -#define PF64PREC "ll" +#define PNTR unsigned long + +#endif /* !_MSC_VER */ +#endif /* !__STDC_VERSION__ */ +#endif /* !ORD32 */ -/* Constant precision specifier */ -#define CF64PREC "LL" +#ifdef _MSC_VER +#ifndef ATTRIBUTE_NORETURN +# define ATTRIBUTE_NORETURN __declspec(noreturn) +#endif +#endif +#ifdef __GNUC__ #ifndef ATTRIBUTE_NORETURN -#define ATTRIBUTE_NORETURN __attribute__((noreturn)) +# define ATTRIBUTE_NORETURN __attribute__((noreturn)) +#endif #endif -#endif /* __GNUC__ */ /* =========================================================== */ +/* System compatibility #defines */ +#if defined (NT) -#define PNTR unsigned long +#ifndef sys_stat +# define sys_stat _stat +#endif +#ifndef sys_mkdir +# define sys_mkdir _mkdir +#endif +#ifndef sys_read +# define sys_read _read +#endif +#ifndef sys_utime +# define sys_utime _utime +# define sys_utimbuf _utimbuf +#endif +#ifndef sys_access +# define sys_access _access +#endif -#endif /* !_MSC_VER */ -#endif /* !__STDC_VERSION__ */ +#ifndef snprintf +# define snprintf _snprintf +# define vsnprintf _vsnprintf +#endif +#ifndef stricmp +# define stricmp _stricmp +#endif + +#endif /* NT */ + +#if defined (UNIX) + +#ifndef sys_stat +# define sys_stat stat +#endif +#ifndef sys_mkdir +# define sys_mkdir mkdir +#endif +#ifndef sys_read +# define sys_read read +#endif +#ifndef sys_utime +# define sys_utime utime +# define sys_utimbuf utimbuf +#endif +#ifndef sys_access +# define sys_access access +#endif + +#ifndef stricmp +# define stricmp strcasecmp +#endif + +#endif /* UNIX */ + +/* =========================================================== */ /* Some default math limits and constants */ #ifndef DBL_EPSILON #define DBL_EPSILON 2.2204460492503131e-016 /* 1.0+DBL_EPSILON != 1.0 */ @@ -235,7 +290,7 @@ a1log *new_a1log_d(a1log *log); /* Returns NULL */ a1log *del_a1log(a1log *log); -/* Set the tag. Note that the tage string is NOT copied, just referenced */ +/* Set the tag. Note that the tag string is NOT copied, just referenced */ void a1log_tag(a1log *log, char *tag); /* Log a verbose message if level >= verb */ @@ -277,14 +332,17 @@ extern void check_if_not_interactive(); extern int not_interactive; extern char cr_char; +/* =========================================================== */ + + /* =========================================================== */ /* reallocate and clear new allocation */ void *recalloc( /* Return new address */ -void *ptr, /* Current address */ -size_t cnum, /* Current number and unit size */ +void *ptr, /* Current address */ +size_t cnum, /* Current number and unit size */ size_t csize, -size_t nnum, /* New number and unit size */ +size_t nnum, /* New number and unit size */ size_t nsize ); @@ -438,6 +496,15 @@ INR64 read_INR64_le(ORD8 *p); void write_INR64_be(INR64 d, ORD8 *p); void write_INR64_le(INR64 d, ORD8 *p); +/*******************************************/ +/* Numerical diagnostics */ + +#ifndef isNan +#define isNan(x) ((x) != (x)) +#define isFinite(x) ((x) == 0.0 || (x) * 1.0000001 != (x)) +#endif + + #ifdef __cplusplus } #endif diff --git a/numlib/ui.c b/numlib/ui.c new file mode 100644 index 0000000..fefdcc2 --- /dev/null +++ b/numlib/ui.c @@ -0,0 +1,238 @@ + + +#define __UI_C__ + +/* + * Do OS specific setup for using UI windows. + * + * Copyright 2014 Graeme W. Gill + * All rights reserved. + * + * This material is licenced under the GNU AFFERO GENERAL PUBLIC LICENSE Version 3 :- + * see the License.txt file for licencing details. + * + * Typically we need to set things up and then call the + * "normal" main, called "uimain" in ArgyllCMS utils. + */ + +#ifdef UNIX + +#if __APPLE__ + +/* - - - - - - - - - - - - - - - - - - - - - - - - - - - */ +/* OS X */ + +/* + + OS X is dumb in relying on an event loop that + _has_ to be in the main thread to operate. + Since we can invoke UI operations from any thread, + the way we work around this is to intercept the + main thread, spawn a secondary thread to run the + application main(), and then do nothing but + service the events in the main thread. + + Note though that Cocoa has poor thread safety :- + ie. NSRunLoop can't be used to access events - use CFRunLoop + + Should bracket all drawing code between the lockFocusIfCanDraw and + unlockFocus methods of NSView ? Or is this only a problem if + different threads try and draw to the same window ? + + */ + +# include +# include +# include + +# include +# include + +/* This is a mechanism to force libui to link */ +int ui_initialized = 0; + +static int g_argc; +static char **g_argv; + +pthread_t ui_thid = 0; /* Thread ID of main thread running io run loop */ +pthread_t ui_main_thid = 0; /* Thread ID of thread running application main() */ + +static void *callMain(void *p) { + int rv; + + ui_main_thid = pthread_self(); + + NSAutoreleasePool *tpool = [NSAutoreleasePool new]; + + rv = uimain(g_argc, g_argv); + + [tpool release]; + + exit(rv); +} + +/* Dumy method for NSThread to start */ +@interface MainClass : NSObject ++(void)dummyfunc:(id)param; +@end + +@implementation MainClass ++(void)dummyfunc:(id)param{ +} + +@end + +int main(int argc, char ** argv) { + + ui_thid = pthread_self(); + + /* Create an NSApp */ + static NSAutoreleasePool *pool = nil; + ProcessSerialNumber psn = { 0, 0 }; + + /* Transform the process so that the desktop interacts with it properly. */ + /* We don't need resources or a bundle if we do this. */ + if (GetCurrentProcess(&psn) == noErr) { + OSStatus stat; + if (psn.lowLongOfPSN != 0 && (stat = TransformProcessType(&psn, + kProcessTransformToForegroundApplication)) != noErr) { +// fprintf(stderr,"TransformProcess failed with code %d\n",stat); + } else { +// fprintf(stderr,"TransformProcess suceeded\n"); + } +// if ((stat = SetFrontProcess(&psn)) != noErr) { +// fprintf(stderr,"SetFrontProcess returned error %d\n",stat); +// } + } + + pool = [NSAutoreleasePool new]; + + [NSApplication sharedApplication]; /* Creates NSApp */ + [NSApp finishLaunching]; + + /* We seem to need this, because otherwise we don't get focus automatically */ + [NSApp activateIgnoringOtherApps: YES]; + + /* We need to create at least one NSThread to tell Cocoa that we are using */ + /* threads, and to protect Cococa objects. */ + [NSThread detachNewThreadSelector:@selector(dummyfunc:) toTarget:[MainClass class] withObject:nil]; + + /* Call the real main() in another thread */ + int rv; + pthread_t thid; + g_argc = argc; + g_argv = argv; + + ui_initialized = 1; + + if ((rv = pthread_create(&thid, NULL, callMain, (void *)NULL)) != 0) { + fprintf(stderr,"ui: pthread_create failed with %d\n",rv); + return -1; + } + + /* Service the run queue */ + [NSApp run]; + + /* Note that we don't actually clean this up on exit - */ + /* possibly we can't. */ +// [NSApp terminate: nil]; +} + +#else /* !APPLE */ + +/* - - - - - - - - - - - - - - - - - - - - - - - - - - - */ +/* UNIX */ + +/* This is a mechanism to force libui to link */ +int ui_initialized = 1; /* Nothing needs initializing */ + +#endif /* !APPLE */ + +#endif /* UNIX */ + +#ifdef NT +/* - - - - - - - - - - - - - - - - - - - - - - - - - - - */ +/* NT */ + +#ifdef NEVER + +/* + This code isn't generally usable for console programs, because + Microsoft changed the default behaviour of cmd.exe in Vista to + not wait for a gui mode .exe to terminate. A non-gui .exe always + pops a new console if run from explorer. + + So this approach is still viable for primarily gui programs + to output debug to stdout, but a different shell or "cmd.exe /E:OFF" + is needed to interact with it via the shell. + + Alternatives are messy - mark the exe as console and + have it shut down the popup console in gui mode (looks + ugly), or have a stub app.bat that invokes the + real .exe, forcing cmd.exe to operate in the mode where + it waits for execution to finish. +*/ + +/* This is a mechanism to force libui to link */ +int ui_initialized = 0; + +/* + + On MSWin we can rely on WinMain to be called instead of + main(), so that we can re-attache the stdio so that the + resulting exe works the same when involked either from + a shell, or directly from explorer. + + */ + +/* May have to add link flag -Wl,-subsystem,windows */ +/* since MingW is stupid about noticing WinMain or pragma */ + +#include +#include + +# pragma comment( linker, "/subsystem:windows" ) +//# pragma comment( linker, "/subsystem:console /ENTRY:WinMainCRTStartup" ) +//# pragma comment( linker, "/subsystem:windows /ENTRY:mainCRTStartup" ) +//# pragma comment( linker, "/subsystem:windows /ENTRY:WinMainCRTStartup" ) + +APIENTRY WinMain( + HINSTANCE hInstance, + HINSTANCE hPrevInstance, + LPSTR lpCmdLine, + int nCmdShow +) { + { /* Only works on >= XP though */ + BOOL (WINAPI *AttachConsole)(DWORD dwProcessId); + + *(FARPROC *)&AttachConsole = + GetProcAddress(LoadLibraryA("kernel32.dll"), "AttachConsole"); + + if (AttachConsole != NULL && AttachConsole(((DWORD)-1))) + { + if (_fileno(stdout) < 0) + freopen("CONOUT$","wb",stdout); + if (_fileno(stderr) < 0) + freopen("CONOUT$","wb",stderr); + if (_fileno(stdin) < 0) + freopen("CONIN$","rb",stdin); +#ifdef __cplusplus + // make cout, wcout, cin, wcin, wcerr, cerr, wclog and clog point to console as well + std::ios::sync_with_stdio(); +#endif + } + } + + ui_initialized = 1; + + return uimain(__argc, __argv); +} + +#else /* !NEVER */ + +/* This is a mechanism to force libui to link */ +int ui_initialized = 1; /* Nothing needs initializing */ + +#endif /* !NEVER */ + +#endif /* NT */ diff --git a/numlib/ui.h b/numlib/ui.h new file mode 100644 index 0000000..e1d7a58 --- /dev/null +++ b/numlib/ui.h @@ -0,0 +1,50 @@ + +#ifndef __UI_H__ + +/* + * Do OS specific setup for using UI windows. + * Include this only in file with main(). + * + * Copyright 2014 Graeme W. Gill + * All rights reserved. + * + * This material is licenced under the GNU AFFERO GENERAL PUBLIC LICENSE Version 3 :- + * see the License.txt file for licencing details. + * + * Typically we need to set things up and then call the + * "normal" main, called "uimain" in ArgyllCMS utils. + */ + +/* Because linkers are dumb (they pass over a library containing main() */ +/* and then complain that there is no entry point!), we force linking */ +/* of libui if ui.h gets #included. */ +extern int ui_initialized; +static int *pui_initialized = &ui_initialized; + +#ifdef UNIX +# ifdef __APPLE__ + +extern pthread_t ui_thid; /* Thread ID of main thread running io run loop */ +extern pthread_t ui_main_thid; /* Thread ID of thread running application main() */ + +#ifndef __UI_C__ +# define main uimain +#endif + +#else /* Linux etc. */ + +#endif /* Linux etc. */ +#endif /* UNIX */ + +#ifdef NT + +#ifdef NEVER /* Not practical - see ui.c for full explanation */ +#ifndef __UI_C__ +# define main uimain +#endif +#endif + +#endif + +#define __UI_H__ +#endif /* __UI_H__ */ diff --git a/plot/Jamfile b/plot/Jamfile index 47bc09e..5468cd6 100644 --- a/plot/Jamfile +++ b/plot/Jamfile @@ -11,6 +11,11 @@ if $(OS) = MACOSX { ObjectCcFlags plot_plot : -ObjC ; } +# Stop MS compiler running out of heap space +if $(MSVCNT) { + CCFLAGS += "/Zm400" ; +} + # PLOT library Library libplot : plot.c : : : ../h ../numlib ../spectro ; if $(UNIX) && $(OS) != MACOSX { @@ -18,10 +23,23 @@ if $(UNIX) && $(OS) != MACOSX { } # Individual stand alone test of plot library -MainVariant plot : plot.c : : STANDALONE_TEST : ../h ../numlib ../spectro : : ../spectro/libconv.lib ../numlib/libnum.lib ; +MainVariant plot : plot.c : : STANDALONE_TEST : ../h ../numlib ../spectro : : ../spectro/libconv.lib ../numlib/libnum.lib ../numlib/libui.lib ; # VRML plot library Library libvrml : vrml.c : : : ../h ../icc ../cgats ../numlib ../gamut ; + +# X3DOM files x3dom.css & x3dom.js are from /src/x3dom/dist after using +# /src/x3dom/src/Makefile python script to assemble them. +if [ GLOB $(PATH) : xxd xxd.exe ] { + Echo "xxd seems to be available" ; + + GenFileNNDnc x3dom.css.h : xxd -i "<" [ NormPaths x3dom.css ] ">" [ NormPaths x3dom.css.h ] ; + GenFileNNDnc x3dom.js.h : xxd -i "<" [ NormPaths x3dom.js ] ">" [ NormPaths x3dom.js.h ] ; +} + +#MainsFromSources ttt.c : : : ../numlib ; +#Main ttt : ttt.c : : : ../numlib : : ../numlib/libnum libplot : ; + #MainsFromSources t.c ; diff --git a/plot/Readme.txt b/plot/Readme.txt index df5a0c0..6d15a37 100644 --- a/plot/Readme.txt +++ b/plot/Readme.txt @@ -1,2 +1,5 @@ A simple Windows NT/X11 2d graph plot library, to quickly display graphs and points for debug purposes. + +Also a library that encapsulates writing VRML/X3D/X3DOM +3D visualisation files. diff --git a/plot/X3DOM_LICENSE.txt b/plot/X3DOM_LICENSE.txt new file mode 100644 index 0000000..d9c2faf --- /dev/null +++ b/plot/X3DOM_LICENSE.txt @@ -0,0 +1,42 @@ +Dual licensed under the MIT and GPL licenses. + +==[MIT]==================================================================== +Copyright (c) 2009 X3DOM + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in +all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN +THE SOFTWARE. + + +==[GPL]==================================================================== + +X3DOM - Declarative 3D for HTML + +Copyright (C) 2009 X3DOM + +This program is free software: you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation, either version 3 of the License, or +(at your option) any later version. + +This program is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU General Public License for more details. + +You should have received a copy of the GNU General Public License +along with this program. If not, see . diff --git a/plot/afiles b/plot/afiles index 0fbf8c6..9e3f888 100644 --- a/plot/afiles +++ b/plot/afiles @@ -7,8 +7,8 @@ plot.c plot.h vrml.c vrml.h -osx/Readme.txt -osx/Jamfile -osx/helloc.c -osx/acoccoa.h -osx/hellom.m +X3DOM_LICENSE.txt +x3dom.css +x3dom.css.h +x3dom.js +x3dom.js.h diff --git a/plot/osx/Jamfile b/plot/osx/Jamfile deleted file mode 100644 index 933d56d..0000000 --- a/plot/osx/Jamfile +++ /dev/null @@ -1,21 +0,0 @@ - -# Jamfile for OS X window code development - -#PREF_CCFLAGS = $(CCOPTFLAG) ; # Turn optimisation on -PREF_CCFLAGS = $(CCDEBUGFLAG) ; # Debugging flags -#PREF_CCFLAGS += -x objective-c ; -PREF_LINKFLAGS = $(LINKDEBUGFLAG) ; - -# Hello world -#Main hello : hello.m ; - -# Hello world window in C -Main helloc : helloc.c ; - -# Hello world window in Objective-C -ObjectCcFlags hellom : -ObjC ; -Main hellom : hellom.m ; - -#GuiBin tt ; -#Main tt : tt.m ; - diff --git a/plot/osx/Readme.txt b/plot/osx/Readme.txt deleted file mode 100644 index 44b083b..0000000 --- a/plot/osx/Readme.txt +++ /dev/null @@ -1 +0,0 @@ -Develop Cocoa based simple window code. diff --git a/plot/osx/acoccoa.h b/plot/osx/acoccoa.h deleted file mode 100644 index ba88cd4..0000000 --- a/plot/osx/acoccoa.h +++ /dev/null @@ -1,402 +0,0 @@ - -#ifndef ACOCCOA_H - -/* OS X Coccoa support code for Argyll. */ -/* In some places we really prefer not to have OS X code */ -/* in separate .m files, so we'll do it all from C. */ - -#include - -#if __MAC_OS_X_VERSION_MAX_ALLOWED >= 1050 -# include -# include -#else -# include - -/* Objective-C runtime compatibility functions for < 10.5 */ - -/* Create a class definition, but don't register it */ -Class CreateClassDefinition(const char *name, const char *superclassName) { - struct objc_class *meta_class; - struct objc_class *super_class; - struct objc_class *new_class; - struct objc_class *root_class; - - // Ensure that the superclass exists and that someone - // hasn't already implemented a class with the same name - // - super_class = (struct objc_class *)objc_lookUpClass(superclassName); - if (super_class == nil) { - printf("failed to lookup '%s'\n",superclassName); - return Nil; - } - - if (objc_lookUpClass(name) != nil) { - return Nil; - } - - // Find the root class - root_class = super_class; - while(root_class->super_class != nil) - root_class = root_class->super_class; - - // Allocate space for the class and its metaclass - if ((new_class = calloc(2, sizeof(struct objc_class))) == NULL) { - return Nil; - } - meta_class = &new_class[1]; - - // setup class - new_class->isa = meta_class; - new_class->info = CLS_CLASS; - meta_class->info = CLS_META; - - // Create a copy of the class name. - // For efficiency, we have the metaclass and the class itself - // to share this copy of the name, but this is not a requirement - // imposed by the runtime. - if ((new_class->name = strdup(name)) == NULL) { - free(new_class); - } - meta_class->name = new_class->name; - - // Allocate empty method lists. - // We can add methods later. - if ((new_class->methodLists = calloc( 1, sizeof(struct objc_method_list *))) == NULL) { - free((void *)new_class->name); - free(new_class); - return Nil; - } - *new_class->methodLists = (struct objc_method_list *) -1; - if ((meta_class->methodLists = calloc(1, sizeof(struct objc_method_list *))) == NULL) { - free(new_class->methodLists); - free((void *)new_class->name); - free(new_class); - return Nil; - } - *meta_class->methodLists = (struct objc_method_list *) -1; - - // Connect the class definition to the class hierarchy: - // Connect the class to the superclass. - // Connect the metaclass to the metaclass of the superclass. - // Connect the metaclass of the metaclass to the metaclass of the root class. - new_class->super_class = super_class; - meta_class->super_class = super_class->isa; - meta_class->isa = (void *)root_class->isa; - - // Set the sizes of the class and the metaclass. - new_class->instance_size = super_class->instance_size; - meta_class->instance_size = meta_class->super_class->instance_size; - - return new_class; -} - -/* Add an array of methods. Null terminated by name array */ -/* We assume that the class is being created, and that there are */ -/* no existing methods. */ -BOOL registerDynamicMethods(Class cls, const char *mnames[], IMP mimps[], const char *mtypes[]) { - int i, nmeth; - struct objc_method_list *methodList; - - /* Count the number of methods */ - for (nmeth = 0; mnames[nmeth] != NULL && mnames[nmeth][0] != '\000'; nmeth++) - ; - - /* Allocate an array */ - methodList = malloc(sizeof(struct objc_method_list) + (nmeth-1) * sizeof(struct objc_method)); - - methodList->method_count = nmeth; - for (i = 0; i < nmeth; i++) { - // Get or register the selector for the method name - SEL methodSEL = SELUID(mnames[i]); - - // Registering the method seems to register the selector - if (ISSELECTOR(methodSEL) == NO) { - methodSEL = sel_registerName(mnames[i]); - } - - // Fill out the method list - methodList->method_list[i].method_name = methodSEL; - methodList->method_list[i].method_imp = mimps[i]; - methodList->method_list[i].method_types = strdup(mtypes[i]); - } - - // Register our methods - class_addMethods((Class)cls, methodList); - - return YES; -} - -/* Add an array of instance variables. Null terminated by name array */ -/* We assume that the class is being created, and that there are */ -/* no existing methods. */ -BOOL registerDynamicVariables(Class cls, const char *names[], size_t sizes[], const char *types[]) { - int i, nvar = 1; - int vsize; - struct objc_ivar *ivarp; - - /* Count the number of variables */ - for (nvar = 0; names[nvar] != NULL && names[nvar][0] != '\000'; nvar++) - ; - - vsize = sizeof(struct objc_ivar_list) + (nvar - 1) * sizeof(struct objc_ivar); - cls->ivars = calloc(vsize, 1); - cls->ivars->ivar_count = nvar; - - for (i = 0; i < nvar; i++) { - int abytes; - ivarp = &cls->ivars->ivar_list[i]; - - /* Set the variable information */ - ivarp->ivar_name = strdup(names[i]); - ivarp->ivar_type = strdup(types[i]); - - /* Align the offset for this variable to it's size, limiting to 64 bits */ - if ((abytes = sizes[i]) > 8) - abytes = 8; - cls->instance_size = (cls->instance_size + abytes-1) & ~(abytes-1); - ivarp->ivar_offset = (int)cls->instance_size; - cls->instance_size += sizes[i]; - } - - return YES; -} - -#endif /* __MAC_OS_X_VERSION_MAX_ALLOWED >= 1050 */ - -extern id NSApp; - -/* Create a class */ -BOOL registerClass( -const char *name, /* Name of class being created */ -const char *supername, /* Name of superclass */ -const char *methnames[], /* List of method names, empty string terminated */ -IMP methimps[], /* Method implementations */ -const char *methsigs[], /* Method signatures */ -const char *varnames[], /* List of variable names, empty string terminated */ -size_t varsizes[], /* Variable size in bytes */ -const char *varsigs[] /* Variable signatures */ -) { - int i; - Class nclass; - -#if __MAC_OS_X_VERSION_MAX_ALLOWED >= 1050 - nclass = objc_allocateClassPair((Class)objc_getClass(supername), name, 0); - if (nclass == Nil) { - return NO; - } - - for (i = 0; methnames[i] != NULL && methnames[i][0] != '\000'; i++) { - class_addMethod(nclass, sel_getUid(methnames[i]), methimps[i], methsigs[i]); - } - - // Should check return value is YES - for (i = 0; varnames[i] != NULL && varnames[i][0] != '\000'; i++) { - int asize; - while( (1 << asize) < varsizes[i] && asize < 8) - asize++; - class_addIvar(nclass, varnames[i], varsizes[i], asize, varsigs[i]); - } - - // Must be called after adding instance variable - objc_registerClassPair(nclass); -#else - /* Use compat.h functions to do the dirty work */ - // Should check the return value! - if ((nclass = CreateClassDefinition(name, supername)) == Nil) { - return NO; - } - - registerDynamicMethods(nclass, methnames, methimps, methsigs); - - registerDynamicVariables(nclass, varnames, varsizes, varsigs); - - // Register the class with the runtime. - objc_addClass(nclass); -#endif - return YES; -} - -/* ------------------------------------------------ */ -/* One of the primary disadvantages of coding Coccoa in C */ -/* is the lack of compatible .h files. We have to make our own.. */ - -/* ------------------------------------------------ */ - -/* Foundation stuff */ - -#ifndef __OBJC__ - -#if !defined(FSTATIC_INLINE) -# if defined (__GNUC__) && (__GNUC__ == 4) -# define FSTATIC_INLINE static __inline__ __attribute__((always_inline)) -# else -# define FSTATIC_INLINE static __inline__ -# endif -#endif - -#ifdef __LP64__ -typedef double NSFloat; -#else -typedef float NSFloat; -#endif - -typedef struct _NSPoint { - NSFloat x; - NSFloat y; -} NSPoint; - -FSTATIC_INLINE NSPoint NSMakePoint(NSFloat x, NSFloat y) { - NSPoint r; - r.x = x; - r.y = y; - return r; -} - -typedef struct _NSSize { - NSFloat width; - NSFloat height; -} NSSize; - -FSTATIC_INLINE NSSize NSMakeSize(NSFloat w, NSFloat h) { - NSSize r; - r.width = w; - r.height = h; - return r; -} - - -typedef struct _NSRect { - NSPoint origin; - NSSize size; -} NSRect; - -FSTATIC_INLINE NSRect NSMakeRect(NSFloat x, NSFloat y, NSFloat w, NSFloat h) { - NSRect r; - r.origin.x = x; - r.origin.y = y; - r.size.width = w; - r.size.height = h; - return r; -} - -#endif /* !__OBJC__ */ - -/* ------------------------------------------------ */ -/* Constats for NSString class */ - -/* 10.4 and latter */ -typedef enum { - NSStringDrawingUsesLineFragmentOrigin = (1 << 0), - NSStringDrawingUsesFontLeading = (1 << 1), - NSStringDrawingDisableScreenFontSubstitution = (1 << 2), - NSStringDrawingUsesDeviceMetrics = (1 << 3), - NSStringDrawingOneShot = (1 << 4), - NSStringDrawingTruncatesLastVisibleLine = (1 << 5) -} NSStringDrawingOptions; - -/* ------------------------------------------------ */ -/* Constats for NSApplication class */ - -typedef enum { - NSApplicationPresentationDefault = 0, - NSApplicationPresentationAutoHideDock = (1 << 0), - NSApplicationPresentationHideDock = (1 << 1), - NSApplicationPresentationAutoHideMenuBar = (1 << 2), - NSApplicationPresentationHideMenuBar = (1 << 3), - NSApplicationPresentationDisableAppleMenu = (1 << 4), - NSApplicationPresentationDisableProcessSwitching = (1 << 5), - NSApplicationPresentationDisableForceQuit = (1 << 6), - NSApplicationPresentationDisableSessionTermination = (1 << 7), - NSApplicationPresentationDisableHideApplication = (1 << 8), - NSApplicationPresentationDisableMenuBarTransparency = (1 << 9), - NSApplicationPresentationFullScreen = (1 << 10), - NSApplicationPresentationAutoHideToolbar = (1 << 11) -} NSApplicationPresentationOptions; - -typedef enum { - NSTerminateCancel = 0, - NSTerminateNow = 1, - NSTerminateLater = 2 -} NSApplicationTerminateReply; - -/* ------------------------------------------------ */ -/* Constats for NSWindow class */ - -enum { - NSBorderlessWindowMask = 0, - NSTitledWindowMask = 1 << 0, - NSClosableWindowMask = 1 << 1, - NSMiniaturizableWindowMask = 1 << 2, - NSResizableWindowMask = 1 << 3, - NSTexturedBackgroundWindowMask = 1 << 8 -#if MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_4 - ,NSUnscaledWindowMask = 1 << 11, - NSUnifiedTitleAndToolbarWindowMask = 1 << 12 -#endif -}; - -/* types of window backing store */ -typedef enum { - NSBackingStoreRetained = 0, - NSBackingStoreNonretained = 1, - NSBackingStoreBuffered = 2 -} NSBackingStoreType; - - -/* ------------------------------------------------ */ -/* Convenience functions */ - -/* Transform process to interact with descktop */ -void transProcess() { - OSStatus stat; - ProcessSerialNumber psn = { 0, 0 }; - - if (GetCurrentProcess(&psn) != noErr) { - /* Transform the process so that the desktop interacts with it properly. */ - /* We don't need resources or a bundle if we do this. */ - if (psn.lowLongOfPSN != 0 && (stat = TransformProcessType(&psn, - kProcessTransformToForegroundApplication)) != noErr) - fprintf(stderr,"TransformProcess failed with code %d\n",stat); - } -} - -/* Send a message to the object */ -#define sendMsg(oid, msg, ...) objc_msgSend(oid, sel_getUid(msg), ##__VA_ARGS__) - -/* alloc and init a new object */ -id newObject(const char *cname) { - id rv; - rv = objc_msgSend(objc_getClass(cname), sel_getUid("alloc")); - rv = objc_msgSend(rv, sel_getUid("init")); - return rv; -} -/* release an object */ -void delObject(id oid) { - objc_msgSend(oid, sel_getUid("release")); -} - -/* dealloc super */ -void delObjectSuper(id oid) { - struct objc_super ss; - ss.receiver = oid; -#ifdef __OBJC__ - ss.super_class = sendMsg(oid, "superclass"); -#else - ss.class = (Class)sendMsg(oid, "superclass"); -#endif - objc_msgSendSuper(&ss, sel_getUid("dealloc")); -} - -/* Create an NSString from a C string */ -id newNSString(const char *cstr) { - id str; - - str = objc_msgSend(objc_getClass("NSString"), sel_getUid("alloc")); - str = objc_msgSend(str, sel_getUid("initWithUTF8String:"), cstr); - - return str; -} - -#define ACOCCOA_H -#endif /* ACOCCOA_H */ diff --git a/plot/osx/helloc.c b/plot/osx/helloc.c deleted file mode 100644 index 9150989..0000000 --- a/plot/osx/helloc.c +++ /dev/null @@ -1,313 +0,0 @@ - -#include -#include -#include - -#ifdef __OBJC__ -# include -# include -#endif - -#include "acocoa.h" /* Argyll Cocoa support functions and defines */ - -/* -- (void) someMethod:... -{ - va_list va; - - va_start(va, _cmd); - - // process all args with va_arg - - va_end(va); -} - */ - -/* Our static instance variables for AppDelegate */ -typedef struct { - id window; /* NSWindow */ - id view; /* NSView */ -} cntx_t; - -/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */ - -void MyView_setCntx(id self, SEL _cmd, void *val) { - object_setInstanceVariable(self, "cntx", val); -} - -void MyView_drawRect(id self, SEL _cmd, NSRect rect) { - double w = rect.size.width, h = rect.size.height; - - id aPath = sendClassMsg("NSBezierPath", "bezierPath"); - sendMsg(aPath, "setLineWidth:", 2.0); - sendMsg(aPath, "moveToPoint:", NSMakePoint(0.0, 0.0)); - sendMsg(aPath, "lineToPoint:", NSMakePoint(0.9 * w, 0.9 * h)); - sendMsg(aPath, "appendBezierPathWithRect:", NSMakeRect(0.5 * w, 0.5 * h, - 0.7 * w, 0.6 * h)); - sendMsg(aPath, "stroke"); - - { - id att = newObject("NSDictionary"); - id str = newNSString("String"); - sendMsg(str, "drawAtPoint:withAttributes:", NSMakePoint(0.1 * w, 0.1 * h), att); - } -} - -/* Clean up */ -void MyView_dealloc(id self, SEL _cmd) { - delObjectSuper(self); -} - -// Create our custom NSView */ -void createMyView() { - method_info minfo[] = { - { "setCntx:", (IMP)MyView_setCntx, "v@:^v" }, - { "drawRect:", (IMP)MyView_drawRect, "v@:@" }, - { "dealloc", (IMP)MyView_dealloc, "v@:" }, - { "" } - }; - - variable_info vinfo[] = { - { "cntx", sizeof(void *), "^v" }, - { "" } - }; - - registerClass("MyView", "NSView", minfo, vinfo); -} - -/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */ - -void MyWin_setCntx(id self, SEL _cmd, void *val) { - object_setInstanceVariable(self, "cntx", val); -} - -void MyWin_keyDown(id self, SEL _cmd, id event) { - int etype; - id nresp; - id str; - const char *cstr; - - etype = (int)sendMsg(event, "type"); - str = sendMsg(event, "characters"); - cstr = cNSString(str); - printf("Got Window KeyDown type %d, chars '%s'\n",etype, cstr); - - if (cstr[0] == ' ') - sendMsg(NSApp, "terminate:", self); -} - -/* Clean up */ -void MyWin_dealloc(id self, SEL _cmd) { - delObjectSuper(self); -} - -// Create our custom NSWin */ -void createMyWin() { - method_info minfo[] = { - { "setCntx:", (IMP)MyWin_setCntx, "v@:^v", }, - { "keyDown:", (IMP)MyWin_keyDown, "v@:@", }, - { "dealloc", (IMP)MyWin_dealloc, "v@:" }, - { "" } - }; - - variable_info vinfo[] = { - { "cntx", sizeof(void *), "^v" }, - { "" } - }; - - registerClass("MyWin", "NSWindow", minfo, vinfo); -} - -/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */ - -/* Create all the bits */ -void AppDel_willFinishLaunching(id self, SEL _cmd, id notification) { - cntx_t *cx; - id label; /* NSTextField */ - - cx = calloc(1, sizeof(cntx_t)); - - // Set cntx to to allocated structure - object_setInstanceVariable(self, "cntx", (void *)cx); - - /* Create Window */ - cx->window = sendClassMsg("MyWin", "alloc"); - cx->window = sendMsg(cx->window, - "initWithContentRect:styleMask:backing:defer:", - NSMakeRect(300, 300, 200, 100), - NSTitledWindowMask - | NSClosableWindowMask - | NSMiniaturizableWindowMask - | NSResizableWindowMask, - NSBackingStoreBuffered, - YES); - - /* Make the background white */ - sendMsg(cx->window, "setBackgroundColor:", sendClassMsg("NSColor","whiteColor")); - - /* Add title */ - sendMsg(cx->window, "setTitle:", newNSString("Hello World")); - -#ifdef NEVER - /* Create Label */ - label = sendClassMsg("NSTextField", "alloc"); - label = sendMsg(label, "initWithFrame:", NSMakeRect(30, 30, 80, 30)); - - sendMsg(label, "setSelectable:", NO); - sendMsg(label, "setBezeled:", NO); - sendMsg(label, "setDrawsBackground:", NO); - sendMsg(label, "setStringValue:", newNSString("Hello World")); - - /* Hmm. How does this work ? */ - cx->view = sendMsg(cx->window, "contentView"); - sendMsg(cx->view, "addSubview:", label); -#else - /* Use our custom view to draw contents */ - cx->view = newObject("MyView"); - - sendMsg(cx->view, "setCntx:", (void *)cx); - sendMsg(cx->window, "setContentView:", cx->view); - -// sendMsg(cx->window, "setInitialFirstResponder:", cx->view); -#endif - - // Window methods: - - // sendEvent: gets messages. - - // Set above the screen saver - // [aWindow setLevel:NSScreenSaverWindowLevel + 1]; - - // setCollectionBehavior: NSWindowCollectionBehaviorIgnoresCycle - // NSWindowCollectionBehaviorFullScreenPrimary - // NSWindowCollectionBehaviorStationary - // NSWindowCollectionBehaviorIgnoresCycle - - // center - // mouseDownCanMoveWindow - // setMovable: - // setContentMinSize: and setContentMaxSize: - // - // NSRect frame = [myWindow frame]; - // if (frame.size.width <= MIN_WIDTH_WITH_ADDITIONS) - // frame.size.width = MIN_WIDTH_WITH_ADDITIONS; - // frame.size.height += ADDITIONS_HEIGHT; - // frame.origin.y -= ADDITIONS_HEIGHT; - // [myWindow setFrame:frame display:YES animate:YES]; - // objc_msgSend(label, "release")); - // - // setExcludedFromWindowsMenu:YES - // - // setBackgroundColor: and setAlphaValue: - - // WindowImage object: - // setDepthLimit: - - // Setting cursor: - // NSTrackingArea class, along with the cursorUpdate: method of the NSResponder class - -} - -/* Map the window */ -void AppDel_didFinishLaunching(id self, SEL _cmd, id notification) { - cntx_t *cx; - - object_getInstanceVariable(self, "cntx", (void **)&cx); - sendMsg(cx->window, "makeKeyAndOrderFront:", self); - -#ifdef NEVER /* Test terminate */ - sleep(5); - sendMsg(NSApp, "terminate:", self); -#endif -} - -/* Should the application terminate ? */ -NSApplicationTerminateReply AppDel_shouldTerminate(id self, SEL _cmd, id notification) { - return NSTerminateNow; -} - -/* Clean up */ -void AppDel_dealloc(id self, SEL _cmd) { - cntx_t *cx; - - object_getInstanceVariable(self, "cntx", (void **)&cx); - delObject(cx->window); - delObjectSuper(self); -} - -// Create the delegate class that implements our window -void createAppDelClass() { - method_info minfo[] = { - { "applicationWillFinishLaunching:", (IMP)AppDel_willFinishLaunching, "v@:@" }, - { "applicationDidFinishLaunching:", (IMP)AppDel_didFinishLaunching, "v@:@" }, - { "applicationShouldTerminate:", (IMP)AppDel_shouldTerminate, "i@:@" }, - { "dealloc", (IMP)AppDel_dealloc, "v@:" }, - { "" } - }; - - variable_info vinfo[] = { - { "cntx", sizeof(void *), "^v" }, - { "" } - }; - - registerClass("AppDelegate", "NSObject", minfo, vinfo); -} - -/* - - - - - - - - - - - - - - - - - - - - - - - - */ -int main(int argc, char** argv) { - id pool; - id appDelObj; - - /* Transform process so that it interacts with desktop properly */ - transProcess(); - - /* Create an autorelease pool */ - pool = newObject("NSAutoreleasePool"); - - // Create all the classes we override - createAppDelClass(); - createMyWin(); - createMyView(); - - // Get our shared NSApplication and start it - sendClassMsg("NSApplication", "sharedApplication"); - - if (NSApp == NULL) { - fprintf(stderr,"Failed to initialized NSApplication... terminating...\n"); - return -1; - } - - /* Set a delegate to create the window */ - appDelObj = newObject("AppDelegate"); - sendMsg(NSApp, "setDelegate:", appDelObj); - -// if running on 10.7: -// sendMsg(NSApp, "disableRelaunchOnLogin")); - - /* Call the run loop */ - sendMsg(NSApp, "run"); - - // detachDrawingThread:toTarget:withObject: - - /* To terminate: - sendMsg(NSApp, "terminate:", self); - */ - - /* We're done with the pool */ - delObject(pool); - - return EXIT_SUCCESS; -} - -#ifdef NEVER - -- (void)drawRect:(NSRect)rect -{ - NSRect r = NSMakeRect(10, 10, 50, 60); - NSBezierPath *bp = [NSBezierPath bezierPathWithRect:r]; - NSColor *color = [NSColor blueColor]; - [color set]; - [bp fill]; -} - -#endif diff --git a/plot/osx/hellom.m b/plot/osx/hellom.m deleted file mode 100644 index b306878..0000000 --- a/plot/osx/hellom.m +++ /dev/null @@ -1,181 +0,0 @@ - -#include -#include - -#include /* For diagnostics */ - -typedef struct { - id window; /* NSWindow */ - id view; /* NSTextField */ -} cntx_t; - -// - - - - - - - - - - - - - - - - - - - - - - - - - -@interface MyView : NSView { - void *cntx; -} -- (void)setCntx:(void *)cntx; -@end - -@implementation MyView - -- (void)setCntx:(void *)val { - cntx = val; -} - -- (void)drawRect:(NSRect)rect { -// NSGraphicsContext* aContext = [NSGraphicsContext currentContext]; - - [[NSColor redColor] setStroke]; - - NSBezierPath* aPath = [NSBezierPath bezierPath]; - [aPath setLineWidth:2.0]; - [aPath moveToPoint:NSMakePoint(0.0, 0.0)]; - [aPath lineToPoint:NSMakePoint(100.0, 100.0)]; - [aPath appendBezierPathWithRect:NSMakeRect(20.0, 160.0, 80.0, 50.0)]; - - [aPath stroke]; - - NSDictionary *att = [NSDictionary new]; - - [ @"String" drawAtPoint: NSMakePoint(10.0, 10.0) withAttributes: att ]; - -/* - -[@"Hello" drawInRect:r withAttributes:[NSDictionary -dictionaryWithObjectsAndKeys: -[NSColor redColor], NSForegroundColorAttributeName, -[NSFont systemFontOfSize:24], NSFontAttributeName, -nil]]; - -*/ -} - -@end - -/* To trigger an update: - -Send a setNeedsDisplayInRect: or setNeedsDisplay: message to the -view. Sending either of these messages marks part or all of the view as invalid - - */ - -// - - - - - - - - - - - - - - - - - - - - - - - - - - -@interface MyWin : NSWindow { - void *cntx; -} -- (void)setCntx:(void *)cntx; -@end - -@implementation MyWin - -- (void)setCntx:(void *)val { - cntx = val; -} - -- (void)keyDown:(NSEvent *)event { - printf("Got Window KeyDown type %d char %s\n",[event type], - [[event characters] cStringUsingEncoding:NSASCIIStringEncoding]); -} - -- (BOOL)windowShouldClose:(id)sender { - printf("Got Window windowShouldClose\n"); - [NSApp terminate: nil]; - return YES; -} - -@end - -// - - - - - - - - - - - - - - - - - - - - - - - - - - -@interface AppDelegate : NSObject { - void *cntx; -} -@end - -@implementation AppDelegate -- (void) applicationWillFinishLaunching: (NSNotification *)not { - cntx_t *cx; - - cx = calloc(1, sizeof(cntx_t)); - - cntx = (void *)cx; - - /* Create Window */ - cx->window = [[MyWin alloc] initWithContentRect: NSMakeRect(300, 300, 200, 100) - styleMask: (NSTitledWindowMask | - NSClosableWindowMask | - NSMiniaturizableWindowMask | - NSResizableWindowMask) - backing: NSBackingStoreBuffered - defer: YES]; - [cx->window setTitle: @"Hello World"]; - -#ifdef NEVER - /* Create Label */ - cx->label = [[NSTextField alloc] initWithFrame: NSMakeRect(30, 30, 80, 30)]; - [cx->label setSelectable: NO]; - [cx->label setBezeled: NO]; - [cx->label setDrawsBackground: NO]; - [cx->label setStringValue: @"Hello World"]; - - [[cx->window contentView] addSubview: cx->label]; - - [cx->label release]; - -#else - cx->view = [MyView new]; - [cx->view setCntx:(void *)cx]; - [cx->window setContentView: cx->view]; -#endif - // [window setContentView:customView] -} - -- (void) applicationDidFinishLaunching: (NSNotification *) not { - cntx_t *cx = (cntx_t *)cntx; - [cx->window makeKeyAndOrderFront: self]; -} - -- (void) dealloc { - cntx_t *cx = (cntx_t *)cntx; - [cx->window release]; - [super dealloc]; -} -@end - -// - - - - - - - - - - - - - - - - - - - - - - - - - - -int main (int argc, const char **argv) -{ - NSAutoreleasePool *pool; - id appDelObj; - - if (NSApp == nil) { - OSStatus stat; - ProcessSerialNumber psn = { 0, 0 }; - - if (GetCurrentProcess(&psn) == noErr) { - /* Transform the process so that the desktop interacts with it properly. */ - /* We don't need resources or a bundle if we do this. */ - if (psn.lowLongOfPSN != 0 && (stat = TransformProcessType(&psn, - kProcessTransformToForegroundApplication)) != noErr) - fprintf(stderr,"TransformProcess failed with code %d\n",stat); - } - - pool = [NSAutoreleasePool new]; - - [NSApplication sharedApplication]; - appDelObj = [AppDelegate new]; - [NSApp setDelegate: appDelObj]; - - // Run the event loop until done - [NSApp run]; - - [pool release]; - } - - // To terminate: - // [NSApp terminate: nil]; -} - - diff --git a/plot/plot.c b/plot/plot.c index bfd40ce..bc993a8 100644 --- a/plot/plot.c +++ b/plot/plot.c @@ -37,6 +37,9 @@ #include #include "numlib.h" #include "plot.h" +//#ifdef STANDALONE_TEST +#include "ui.h" +//#endif /* STANDALONE_TEST */ #undef DODEBUG /* Print error messages & progress reports */ //#define STANDALONE_TEST /* Defined by build script */ @@ -889,7 +892,6 @@ static int do_plot_imp( /* ------------------------------------------- */ /* Setup windows stuff */ { - /* It would be nice to reduce number of globals. */ /* We don't clean up properly either - ie. don't delete thread etc. */ @@ -1341,7 +1343,8 @@ static void DoPlot(NSRect *rect, plot_info *pdp); chars = [[event characters] UTF8String]; // printf("Got Window KeyDown type %d char %s\n",(int)[event type], chars); - if (chars[0] == ' ') { + if (chars[0] == ' ' + || chars[0] == '\r') { // printf("Set plot_signal = 1\n"); plot_cx->plot_signal = 1; } @@ -1395,12 +1398,10 @@ static void create_my_win(cntx_t *cx) { /* Cocoa NSApp is pretty horrible - it will only get user events - if created and run in the main thread. So the only way we could - decouble the windows from the application would be to intercept + if created and run in the main thread. So the only way we can + decouble the windows from the application is to intercept main() and create a secondary thread to run the appication while leaving main() in reserve for creating an NSApp and windows. - - Instead we poll events for a while and then go back to the main application. */ /* Superset implementation function: */ @@ -1488,36 +1489,21 @@ static int do_plot_imp( pd.o = abs(o); } + /* If we may be in a different thread to the main thread or */ + /* the application thread, establish our own pool. */ + NSAutoreleasePool *tpool = nil; + if (pthread_self() != ui_thid + && pthread_self() != ui_main_thid) + tpool = [NSAutoreleasePool new]; + /* If needed, create the indow */ if (plot_cx == NULL) { - /* If there is no NSApp */ - /* (This should go in a common library) */ - /* Note that we don't actually clean this up on exit - */ - /* possibly we can't. */ + /* If there is no NSApp, then we haven't run main() in libui before */ + /* main() in the application. */ if (NSApp == nil) { - static NSAutoreleasePool *pool = nil; - ProcessSerialNumber psn = { 0, 0 }; - - /* Transform the process so that the desktop interacts with it properly. */ - /* We don't need resources or a bundle if we do this. */ - if (GetCurrentProcess(&psn) == noErr) { - OSStatus stat; - if (psn.lowLongOfPSN != 0 && (stat = TransformProcessType(&psn, - kProcessTransformToForegroundApplication)) != noErr) { -// fprintf(stderr,"TransformProcess failed with code %d\n",stat); - } else { -// fprintf(stderr,"TransformProcess suceeded\n"); - } - } - - - pool = [NSAutoreleasePool new]; - [NSApplication sharedApplication]; /* Creates NSApp */ - [NSApp finishLaunching]; - - /* We seem to need this, because otherwise we don't get focus automatically */ - [NSApp activateIgnoringOtherApps: YES]; + fprintf(stderr,"NSApp is nil - need to rename main() to main() and link with libui !\n"); + exit(1); } if ((plot_cx = (cntx_t *)calloc(sizeof(cntx_t), 1)) == NULL) @@ -1529,35 +1515,24 @@ static int do_plot_imp( [plot_cx->view setNeedsDisplay: YES ]; } - /* Wait until the events are done */ - { - NSEvent *event; - double tot; - NSDate *to; - /* We're creating and draining a pool here to ensure that all the */ - /* auto release objects get drained when we're finished (?) */ - NSAutoreleasePool *tpool = [NSAutoreleasePool new]; + /* (Main thread will service events) */ - if (dowait > 0) { /* Wait for a space key */ - tot = 24.0 * 60.0 * 60.0; - } else if (dowait < 0) { - tot = (double)-dowait; - } else { - tot = 0.1; - } - to = [NSDate dateWithTimeIntervalSinceNow:tot]; /* autorelease ? */ - plot_cx->plot_signal = 0; - for (;plot_cx->plot_signal == 0;) { - /* Hmm. Assume event is autorelease */ - if ((event = [NSApp nextEventMatchingMask:NSAnyEventMask - untilDate:to inMode:NSDefaultRunLoopMode dequeue:YES]) != nil) { - [NSApp sendEvent:event]; - } else { - break; - } + /* Wait until for a key if we should */ + if (dowait > 0) { /* Wait for a space key */ + for (plot_cx->plot_signal = 0; plot_cx->plot_signal == 0;) { + struct timespec ts; + + ts.tv_sec = 100 / 1000; + ts.tv_nsec = (100 % 1000) * 1000000; + nanosleep(&ts, NULL); } - [tpool release]; + } else if (dowait < 0) { + Sleep(-dowait * 1000); } + + if (tpool != nil) + [tpool release]; + return 0; } @@ -1744,10 +1719,12 @@ static void DoPlot(NSRect *rect, plot_info *pdp) { blue: gcolors[j][2]/255.0 alpha: 1.0] setStroke]; - lx = (int)((pdp->x1[0] - pdp->mnx) * pdp->scx + 0.5); - ly = (int)(( yp[0] - pdp->mny) * pdp->scy + 0.5); + if (pdp->n > 0) { + lx = (int)((pdp->x1[0] - pdp->mnx) * pdp->scx + 0.5); + ly = (int)(( yp[0] - pdp->mny) * pdp->scy + 0.5); + } - for (i = 0; i < pdp->n; i++) { + for (i = 1; i < pdp->n; i++) { int cx,cy; cx = (int)((pdp->x1[i] - pdp->mnx) * pdp->scx + 0.5); cy = (int)(( yp[i] - pdp->mny) * pdp->scy + 0.5); @@ -2338,11 +2315,6 @@ double nicenum(double x, int round) { #ifdef STANDALONE_TEST /* test code */ -// ~~99 -#define TEST_NON_CONSOLE /* Version that works from command line and GUI */ -// May have to add link flag -Wl,-subsystem,windows -// since MingW is stupid about noticing WinMain or pragma - //#include //#include #include @@ -2445,39 +2417,6 @@ printf("~1 failed to find AttachConsole\n"); fflush(stdout); // ~~~~~~~~~~~~~ #endif // NEVER -#if defined(TEST_NON_CONSOLE) && defined(NT) -# pragma comment( linker, "/subsystem:windows" ) - -APIENTRY WinMain( - HINSTANCE hInstance, - HINSTANCE hPrevInstance, - LPSTR lpCmdLine, - int nCmdShow -) { - { /* Only works on >= XP though */ - BOOL (WINAPI *AttachConsole)(DWORD dwProcessId); - - *(FARPROC *)&AttachConsole = - GetProcAddress(LoadLibraryA("kernel32.dll"), "AttachConsole"); - - if (AttachConsole != NULL && AttachConsole(((DWORD)-1))) - { - if (_fileno(stdout) < 0) - freopen("CONOUT$","wb",stdout); - if (_fileno(stderr) < 0) - freopen("CONOUT$","wb",stderr); - if (_fileno(stdin) < 0) - freopen("CONIN$","rb",stdin); -#ifdef __cplusplus - // make cout, wcout, cin, wcin, wcerr, cerr, wclog and clog point to console as well - std::ios::sync_with_stdio(); -#endif - } - } - - return main(__argc, __argv); -} -#endif /* TEST_NON_CONSOLE && NT */ int main(int argc, char *argv[]) { double x[10] = {0.0, 0.5, 0.7, 1.0}; diff --git a/plot/vrml.c b/plot/vrml.c index 5b195c2..b077cdb 100644 --- a/plot/vrml.c +++ b/plot/vrml.c @@ -9,48 +9,128 @@ * see the License.txt file for licencing details. */ +/* TTBD: + + X3DOM commands: + + Examine Mode (activate with key e): + Left Button / Left Button + Shift Rotate + Mid Button / Left Button + Ctl Pan + Right Button / Wheel / Left Button + Alt Zoom + Left double click Set center of rotation + + n back to normal view + e examine mode + a show all + u upright + stats pane + log + + + move + zoom + + zoom + */ + #include #include #include #include #include +#include #include "numlib.h" #include "icc.h" #include "gamut.h" #include "vrml.h" -#define MAKE_SOLID +#ifdef NT /* You'd think there might be some standards.... */ +# ifndef __BORLANDC__ +# define stricmp _stricmp +# endif +#else +# define stricmp strcasecmp +#endif -/* Add a shere at the given location. */ +/* Convert input values to x,y, z */ +static void cs2xyz(vrml *s, double *out, double *in) { + if (s->ispace == vrml_rgb) { /* RGB */ + out[0] = s->scale * in[0]; + out[1] = s->scale * in[1]; + out[2] = s->scale * in[2]; + } else if (s->ispace == vrml_xyz) { /* XYZ */ + out[0] = s->scale * in[1]; + out[1] = s->scale * in[2]; + out[2] = s->scale * in[0] - s->off; + } else { /* Lab */ + out[0] = s->scale * in[1]; + out[1] = s->scale * in[2]; + out[2] = s->scale * in[0] - s->off; + } +} + +/* Add a sphere at the given location, with transparency. */ /* if col[] is NULL, use natural color. */ /* Need to do this before or after start_line_set()/dd_vertex()/make_lines() ! */ -static void add_marker(vrml *s, double pos[3], double col[3], double rad) { - double rgb[3]; +static void add_marker_trans(vrml *s, double pos[3], double col[3], double trans, double rad) { + double rgb[3], xyz[3]; if (rad <= 0.0) rad = 1.0; - if (col == NULL) { - if (s->isxyz) + if (col == NULL || col[0] < 0.0) { + if (s->ispace == vrml_rgb) /* RGB */ + icmCpy3(rgb, pos); + else if (s->ispace == vrml_xyz) /* XYZ */ s->XYZ2RGB(s, rgb, pos); - else - s->Lab2RGB(s, rgb, pos); + else /* Lab */ + s->Lab2RGB(s, rgb, pos); } else { rgb[0] = col[0]; rgb[1] = col[1]; rgb[2] = col[2]; } - fprintf(s->fp," # Shere\n"); - fprintf(s->fp," Transform { translation %f %f %f\n", s->scale * pos[1], s->scale * pos[2], s->scale * pos[0] - s->off); - fprintf(s->fp," children [\n"); - fprintf(s->fp," Shape{\n"); - fprintf(s->fp," geometry Sphere { radius %f}\n", s->scale * rad); - fprintf(s->fp," appearance Appearance { material Material "); - fprintf(s->fp,"{ diffuseColor %f %f %f} }\n", rgb[0], rgb[1], rgb[2]); - fprintf(s->fp," }\n"); - fprintf(s->fp," ]\n"); - fprintf(s->fp," }\n"); + cs2xyz(s, xyz, pos); + if (s->fmt == fmt_vrml) { + fprintf(s->fp," # Shere\n"); + fprintf(s->fp," Transform { translation %f %f %f\n", xyz[0], xyz[1], xyz[2]); + fprintf(s->fp," children [\n"); + fprintf(s->fp," Shape{\n"); + fprintf(s->fp," geometry Sphere { radius %f }\n", s->scale * rad); + fprintf(s->fp," appearance Appearance { material Material { \n"); + if (trans > 0.0) { + fprintf(s->fp," transparency %f, \n",trans); + } + fprintf(s->fp," diffuseColor %f %f %f } }\n", rgb[0], rgb[1], rgb[2]); + fprintf(s->fp," }\n"); + fprintf(s->fp," ]\n"); + fprintf(s->fp," }\n"); + + } else { + fprintf(s->fp," \n"); + fprintf(s->fp," \n", xyz[0], xyz[1], xyz[2]); + fprintf(s->fp," \n"); + fprintf(s->fp," \n"); + if (trans > 0.0) { + fprintf(s->fp," fp," transparency='%f'>\n", trans); + } else { + fprintf(s->fp," \n", rgb[0], rgb[1], rgb[2]); + } + fprintf(s->fp," \n"); + fprintf(s->fp," \n",s->scale * rad); + fprintf(s->fp," \n"); + fprintf(s->fp," \n"); + } +} + +/* Add a sphere at the given location. */ +/* if col[] is NULL, use natural color. */ +/* Need to do this before or after start_line_set()/dd_vertex()/make_lines() ! */ +/* (Hasn't been fixed to work in RGB space) */ +static void add_marker(vrml *s, double pos[3], double col[3], double rad) { + add_marker_trans(s, pos, col, 0.0, rad); } /* Add a cone marker to the plot. col == NULL for natural color */ @@ -67,13 +147,16 @@ static void add_cone(vrml *s, double pp0[3], double pp1[3], double col[3], doubl if (rad <= 0.0) rad = 1.0; - if (col == NULL) { + if (col == NULL || col[0] < 0.0) { icmAdd3(rgb, p1, p0); icmScale3(rgb, rgb, 0.5); /* Compute half way value */ - if (s->isxyz) + + if (s->ispace == vrml_rgb) /* RGB */ + icmCpy3(rgb, rgb); + else if (s->ispace == vrml_xyz) /* XYZ */ s->XYZ2RGB(s, rgb, rgb); - else - s->Lab2RGB(s, rgb, rgb); + else /* Lab */ + s->Lab2RGB(s, rgb, rgb); } else { rgb[0] = col[0]; rgb[1] = col[1]; @@ -92,18 +175,18 @@ static void add_cone(vrml *s, double pp0[3], double pp1[3], double col[3], doubl double rot; /* In radians */ int j; -//printf("~1 edge vert %d to %d\n",tp->v[0]->n, tp->v[1]->n); -//printf("~1 edge %f %f %f to %f %f %f\n", -//tp->v[0]->ch[0], tp->v[0]->ch[1], tp->v[0]->ch[2], -//tp->v[1]->ch[0], tp->v[1]->ch[1], tp->v[1]->ch[2]); + //printf("~1 edge vert %d to %d\n",tp->v[0]->n, tp->v[1]->n); + //printf("~1 edge %f %f %f to %f %f %f\n", + //tp->v[0]->ch[0], tp->v[0]->ch[1], tp->v[0]->ch[2], + //tp->v[1]->ch[0], tp->v[1]->ch[1], tp->v[1]->ch[2]); icmAdd3(loc, p1, p0); icmScale3(loc, loc, 0.5); /* Compute half way value */ icmSub3(vec, p1, p0); len = icmNorm3(vec); -//printf("~1 loc = %f %f %f\n", loc[0], loc[1], loc[2]); -//printf("~1 vec = %f %f %f\n", vec[0], vec[1], vec[2]); -//printf("~1 len = %f\n", len); + //printf("~1 loc = %f %f %f\n", loc[0], loc[1], loc[2]); + //printf("~1 vec = %f %f %f\n", vec[0], vec[1], vec[2]); + //printf("~1 len = %f\n", len); if (len < 0.1) len = 0.1; @@ -112,13 +195,13 @@ static void add_cone(vrml *s, double pp0[3], double pp1[3], double col[3], doubl icmNormalize3(vec, vec, 1.0); icmCross3(axis, base, vec); rot = icmDot3(base, vec); -//printf("~1 base = %f %f %f\n", base[0], base[1], base[2]); -//printf("~1 vec = %f %f %f\n", vec[0], vec[1], vec[2]); -//printf("~1 axis = %f %f %f, rot = %f\n",axis[0],axis[1],axis[2],rot); + //printf("~1 base = %f %f %f\n", base[0], base[1], base[2]); + //printf("~1 vec = %f %f %f\n", vec[0], vec[1], vec[2]); + //printf("~1 axis = %f %f %f, rot = %f\n",axis[0],axis[1],axis[2],rot); if (icmNorm3sq(axis) < 1e-10) { /* 0 or 180 degrees */ double base2[3]; int mxi = 0; -//printf("~1 computing a different axis\n"); + //printf("~1 computing a different axis\n"); base2[0] = vec[1]; /* Comute vector in a different direction */ base2[1] = vec[2]; base2[2] = vec[0]; @@ -138,77 +221,115 @@ static void add_cone(vrml *s, double pp0[3], double pp1[3], double col[3], doubl rot = 0.0; } else { rot = acos(rot); -//printf("~1 rotation %f\n",rot); + //printf("~1 rotation %f\n",rot); } - fprintf(s->fp,"\n"); - fprintf(s->fp," # Cone\n"); - fprintf(s->fp," Transform {\n"); - fprintf(s->fp," rotation %f %f %f %f\n",axis[1], axis[2], axis[0], rot); - fprintf(s->fp," translation %f %f %f\n",loc[1], loc[2], loc[0]); - fprintf(s->fp," children [\n"); - fprintf(s->fp," Shape { \n"); - fprintf(s->fp," geometry Cone { bottomRadius %f height %f }\n",s->scale * rad,len); - fprintf(s->fp," appearance Appearance { material Material { diffuseColor %f %f %f } }\n",rgb[0],rgb[1],rgb[2]); - fprintf(s->fp," } \n"); - fprintf(s->fp," ]\n"); - fprintf(s->fp," }\n"); + if (s->fmt == fmt_vrml) { + fprintf(s->fp,"\n"); + fprintf(s->fp," # Cone\n"); + fprintf(s->fp," Transform {\n"); + fprintf(s->fp," rotation %f %f %f %f\n",axis[1], axis[2], axis[0], rot); + fprintf(s->fp," translation %f %f %f\n",loc[1], loc[2], loc[0]); + fprintf(s->fp," children [\n"); + fprintf(s->fp," Shape { \n"); + fprintf(s->fp," geometry Cone { bottomRadius %f height %f }\n",s->scale * rad,len); + fprintf(s->fp," appearance Appearance { material Material { diffuseColor %f %f %f } }\n",rgb[0],rgb[1],rgb[2]); + fprintf(s->fp," } \n"); + fprintf(s->fp," ]\n"); + fprintf(s->fp," }\n"); + } else { + fprintf(s->fp,"\n"); + fprintf(s->fp," \n"); + fprintf(s->fp," fp," translation='%f %f %f'>\n", loc[1], loc[2], loc[0]); + fprintf(s->fp," \n"); + fprintf(s->fp," \n"); + fprintf(s->fp," \n", rgb[0], rgb[1], rgb[2]); + fprintf(s->fp," \n"); + fprintf(s->fp," \n",s->scale * rad, len); + fprintf(s->fp," \n"); + fprintf(s->fp," \n"); + } } } /* Add a text marker to the plot. col == NULL for natural color */ /* (Need to do this before or after start_line_set()/dd_vertex()/make_lines() !) */ static void add_text(vrml *s, char *text, double p[3], double col[3], double size) { - double rgb[3]; + double rgb[3], xyz[3]; if (size <= 0.0) size = 1.0; - if (col == NULL) { - if (s->isxyz) + if (col == NULL || col[0] < 0.0) { + if (s->ispace == vrml_rgb) /* RGB */ + icmCpy3(rgb, p); + else if (s->ispace == vrml_xyz) /* XYZ */ s->XYZ2RGB(s, rgb, p); - else - s->Lab2RGB(s, rgb, p); + else /* Lab */ + s->Lab2RGB(s, rgb, p); } else { rgb[0] = col[0]; rgb[1] = col[1]; rgb[2] = col[2]; } - fprintf(s->fp," # Text\n"); - fprintf(s->fp," Transform { translation %f %f %f\n", s->scale * p[1], s->scale * p[2], s->scale * p[0] - s->off); - fprintf(s->fp," children [\n"); - fprintf(s->fp," Shape{\n"); - fprintf(s->fp," geometry Text { string [\"%s\"]\n",text); - fprintf(s->fp," fontStyle FontStyle { family \"SANS\" style \"BOLD\" size %f }\n", - s->scale * size); - fprintf(s->fp," }\n"); - fprintf(s->fp," appearance Appearance { material Material "); - fprintf(s->fp,"{ diffuseColor %f %f %f} }\n", rgb[0], rgb[1], rgb[2]); - fprintf(s->fp," }\n"); - fprintf(s->fp," ]\n"); - fprintf(s->fp," }\n"); -} - -/* Start building up verticies that will be converted to lines */ + cs2xyz(s, xyz, p); + + if (s->fmt == fmt_vrml) { + fprintf(s->fp," # Text\n"); + fprintf(s->fp," Transform { translation %f %f %f\n", xyz[0], xyz[1], xyz[2]); + fprintf(s->fp," children [\n"); + fprintf(s->fp," Shape{\n"); + fprintf(s->fp," geometry Text { string [\"%s\"]\n",text); + fprintf(s->fp," fontStyle FontStyle { family \"SANS\" style \"BOLD\" size %f }\n", + s->scale * size); + fprintf(s->fp," }\n"); + fprintf(s->fp," appearance Appearance { material Material "); + fprintf(s->fp,"{ diffuseColor %f %f %f } }\n", rgb[0], rgb[1], rgb[2]); + fprintf(s->fp," }\n"); + fprintf(s->fp," ]\n"); + fprintf(s->fp," }\n"); + + } else { + fprintf(s->fp," \n"); + fprintf(s->fp," \n", xyz[0], xyz[1], xyz[2]); + fprintf(s->fp," \n"); + fprintf(s->fp," \n"); + fprintf(s->fp," \n", rgb[0], rgb[1], rgb[2]); + fprintf(s->fp," \n"); + fprintf(s->fp," \n",text); + fprintf(s->fp," \n", s->scale * size); + fprintf(s->fp," \n"); + fprintf(s->fp," \n"); + fprintf(s->fp," \n"); + } +} + +/* Start building up verticies that will be converted to lines or patches. */ +/* This clears the data from an existing set */ /* Set can be from 0 - 9 */ static void start_line_set(vrml *s, int set) { if (set < 0 || set > 9) error("vrml start_line_set set %d out of range",set); s->set[set].npoints = 0; + s->set[set].ntrqu = 0; + s->set[set].ppoly = 0; } -/* Add a verticy with color */ -static void add_col_vertex_l(vrml *s, int set, double pos[3], double col[3], int last) { +/* Add a verticy with color. */ +/* col == NULL or col[0] < 0.0 for natural color */ +/* Return the index number */ +static int add_col_vertex_l(vrml *s, int set, double pos[3], double col[3], int last) { if (set < 0 || set > 9) - error("vrml start_line_set set %d out of range",set); + error("vrml add_col_vertex_l set %d out of range",set); if (s->set[set].npoints >= s->set[set].paloc) { s->set[set].paloc = (s->set[set].paloc + 10) * 2; if (s->set[set].pary == NULL) - s->set[set].pary = malloc(s->set[set].paloc * 6 * (sizeof(double) + sizeof(int))); + s->set[set].pary = malloc(s->set[set].paloc * sizeof(struct vrml_point)); else - s->set[set].pary = realloc(s->set[set].pary, s->set[set].paloc * 6 * (sizeof(double) + sizeof(int))); + s->set[set].pary = realloc(s->set[set].pary, s->set[set].paloc * sizeof(struct vrml_point)); if (s->set[set].pary == NULL) error("VRML malloc failed at count %d\n",s->set[set].paloc); @@ -216,31 +337,39 @@ static void add_col_vertex_l(vrml *s, int set, double pos[3], double col[3], int s->set[set].pary[s->set[set].npoints].pp[0] = pos[0]; s->set[set].pary[s->set[set].npoints].pp[1] = pos[1]; s->set[set].pary[s->set[set].npoints].pp[2] = pos[2]; - s->set[set].pary[s->set[set].npoints].cc[0] = col[0]; - s->set[set].pary[s->set[set].npoints].cc[1] = col[1]; - s->set[set].pary[s->set[set].npoints].cc[2] = col[2]; + + /* Make lines/triangle etc. will convert to natural color if col[0] < 0.0 */ + if (col == NULL || col[0] < 0.0) { + s->set[set].pary[s->set[set].npoints].cc[0] = -1.0; + } else { + s->set[set].pary[s->set[set].npoints].cc[0] = col[0]; + s->set[set].pary[s->set[set].npoints].cc[1] = col[1]; + s->set[set].pary[s->set[set].npoints].cc[2] = col[2]; + } + s->set[set].pary[s->set[set].npoints].last = last; s->set[set].npoints++; -} -/* Add a verticy with color */ -static void add_col_vertex(vrml *s, int set, double pos[3], double col[3]) { - - add_col_vertex_l(s, set, pos, col, 0); + return s->set[set].npoints-1; } -/* Add a color verticy */ -static void add_vertex(vrml *s, int set, double pos[3]) { - double col[3] = { -1.0, -1.0, -1.0 }; +/* Add a verticy (default natural color from pos.) */ +/* Return the index number */ +static int add_vertex(vrml *s, int set, double pos[3]) { + return add_col_vertex_l(s, set, pos, NULL, 0); +} - add_col_vertex_l(s, set, pos, col, 0); +/* Add a verticy with color */ +/* Retun the index number */ +static int add_col_vertex(vrml *s, int set, double pos[3], double col[3]) { + return add_col_vertex_l(s, set, pos, col, 0); } /* Turn the last added vertex into the last vertex of the line */ static void make_last_vertex(vrml *s, int set) { if (set < 0 || set > 9) - error("vrml start_line_set set %d out of range",set); + error("vrml make_last_vertex set %d out of range",set); if (s->set[set].npoints <= 0) warning("vrml plot: tried to set last point with no points added!\n"); @@ -248,46 +377,51 @@ static void make_last_vertex(vrml *s, int set) { s->set[set].pary[s->set[set].npoints-1].last = 1; } -/* Convert the verticies to lines, ppset verticies per line (or .last flag) */ -static void make_lines(vrml *s, int set, int ppset) { +/* Turn all the vertexes into a set of points */ +static void make_points(vrml *s, int set) { + double xyz[3]; int i, j; if (set < 0 || set > 9) - error("vrml start_line_set set %d out of range",set); + error("vrml make_points set %d out of range",set); - fprintf(s->fp,"\n"); - fprintf(s->fp," # Lines\n"); - fprintf(s->fp," Shape {\n"); - fprintf(s->fp," geometry IndexedLineSet { \n"); - fprintf(s->fp," coord Coordinate { \n"); - fprintf(s->fp," point [\n"); + if (s->fmt == fmt_vrml) { + fprintf(s->fp,"\n"); + fprintf(s->fp," # Points\n"); + fprintf(s->fp," Shape {\n"); + fprintf(s->fp," geometry PointSet { \n"); + fprintf(s->fp," coord Coordinate { \n"); + fprintf(s->fp," point [\n"); + } else { + fprintf(s->fp,"\n"); + fprintf(s->fp," \n"); + fprintf(s->fp," \n"); + fprintf(s->fp," \n"); + fprintf(s->fp," \n"); } - fprintf(s->fp," ]\n"); /* Color */ - fprintf(s->fp," colorPerVertex TRUE\n"); - fprintf(s->fp," color Color {\n"); - fprintf(s->fp," color [ # RGB colors of each vertex\n"); + if (s->fmt == fmt_vrml) { + fprintf(s->fp," color Color {\n"); + fprintf(s->fp," color [ # RGB colors of each vertex\n"); + } else { + fprintf(s->fp," \n"); } - fprintf(s->fp," ] \n"); - fprintf(s->fp," }\n"); /* End color */ - fprintf(s->fp," }\n"); - fprintf(s->fp," } # end shape\n"); + if (s->fmt == fmt_vrml) { + fprintf(s->fp," }\n"); + fprintf(s->fp," } # end shape\n"); + } else { + fprintf(s->fp," \n"); + fprintf(s->fp," \n"); + } } -/* Convert the verticies to triangles */ -static void make_triangles_imp( +/* Convert the verticies to lines, ppset verticies per line (or .last flag) */ +static void make_lines(vrml *s, int set, int ppset) { + double xyz[3]; + int i, j; + + if (set < 0 || set > 9) + error("vrml make_lines set %d out of range",set); + + /* - - - - - - - - - - - - */ + if (s->fmt == fmt_vrml) { + fprintf(s->fp,"\n"); + fprintf(s->fp," # Lines\n"); + fprintf(s->fp," Shape {\n"); + fprintf(s->fp," geometry IndexedLineSet { \n"); + fprintf(s->fp," coord Coordinate { \n"); + fprintf(s->fp," point [\n"); + + for (i = 0; i < s->set[set].npoints; i++) { + cs2xyz(s, xyz, s->set[set].pary[i].pp); + fprintf(s->fp," %f %f %f,\n", xyz[0], xyz[1], xyz[2]); + } + + fprintf(s->fp," ]\n"); + fprintf(s->fp," }\n"); + fprintf(s->fp," coordIndex [\n"); + + for (i = 0; i < s->set[set].npoints;) { + fprintf(s->fp," "); + for (j = 0; i < s->set[set].npoints && j < ppset; j++) { + fprintf(s->fp," %d, ", i++); + if (s->set[set].pary[i-1].last != 0) + break; + } + fprintf(s->fp," -1,\n"); + } + fprintf(s->fp," ]\n"); + + /* Color */ + fprintf(s->fp," colorPerVertex TRUE\n"); + fprintf(s->fp," color Color {\n"); + fprintf(s->fp," color [ # RGB colors of each vertex\n"); + + for (i = 0; i < s->set[set].npoints; i++) { + double rgb[3], Lab[3]; + + if (s->set[set].pary[i].cc[0] < 0.0) { + Lab[0] = s->set[set].pary[i].pp[0]; + Lab[1] = s->set[set].pary[i].pp[1]; + Lab[2] = s->set[set].pary[i].pp[2]; + if (s->ispace == vrml_rgb) /* RGB */ + icmCpy3(rgb, Lab); + else if (s->ispace == vrml_xyz) /* XYZ */ + s->XYZ2RGB(s, rgb, Lab); + else /* Lab */ + s->Lab2RGB(s, rgb, Lab); + } else { + icmCpy3(rgb, s->set[set].pary[i].cc); + } + fprintf(s->fp," %f %f %f,\n", rgb[0], rgb[1], rgb[2]); + } + fprintf(s->fp," ] \n"); + fprintf(s->fp," }\n"); + /* End color */ + + fprintf(s->fp," }\n"); + fprintf(s->fp," } # end shape\n"); + + /* - - - - - - - - - - - - */ + } else { /* x3d */ + fprintf(s->fp,"\n"); + fprintf(s->fp," \n"); + fprintf(s->fp," \n"); + fprintf(s->fp," fp," colorPerVertex='true'\n"); + + /* Indexes */ + fprintf(s->fp," coordIndex='\n"); + for (i = 0; i < s->set[set].npoints;) { + fprintf(s->fp," "); + for (j = 0; i < s->set[set].npoints && j < ppset; j++) { + fprintf(s->fp," %d ", i++); + if (s->set[set].pary[i-1].last != 0) + break; + } + fprintf(s->fp," -1\n"); + } + fprintf(s->fp," '\n"); + fprintf(s->fp," > \n"); + + /* Coordinates */ + fprintf(s->fp," \n"); + + /* Color */ + fprintf(s->fp," \n"); + fprintf(s->fp," \n"); + fprintf(s->fp," \n"); + } +} + +/* Convert the verticies to lines, triangles or quads */ +static void make_line_tri_quad( vrml *s, int set, double trans, /* Transparency level */ -int ixcol, /* NZ for using index color */ -double cc[3] /* Surface color, cc == NULL or cc[0] < 0.0 for natural color */ +double cc[3] /* Surface color, cc == NULL or cc[0] < 0.0 */ + /* for previously set or vertex or natural color */ ) { - int i, nverts, ix; + int i, j, nverts, ix; int v[3]; + int lines = 0; if (set < 0 || set > 9) - error("vrml start_line_set set %d out of range",set); + error("vrml make_line_tri_quad set %d out of range",set); - fprintf(s->fp," # Triangles\n"); - fprintf(s->fp," Transform {\n"); - fprintf(s->fp," translation 0 0 0\n"); - fprintf(s->fp," children [\n"); - fprintf(s->fp," Shape { \n"); - fprintf(s->fp," geometry IndexedFaceSet {\n"); -// fprintf(s->fp," ccw FALSE\n"); - fprintf(s->fp," convex TRUE\n"); -#ifdef MAKE_SOLID - fprintf(s->fp," solid FALSE\n"); /* If we want them visible from both sides */ -#endif - fprintf(s->fp,"\n"); - fprintf(s->fp," coord Coordinate { \n"); - fprintf(s->fp," point [ # Verticy coordinates\n"); + if (s->set[set].npoints > 0 && s->set[set].tqary[0].ix[2] < 0) /* First is a line */ + lines = 1; /* Assume all are lines */ - /* Spit out the point values, in order. */ - /* Note that a->x, b->y, L->z */ - for (i = 0; i < s->set[set].npoints; i++) { - fprintf(s->fp," %f %f %f,\n", - s->scale * s->set[set].pary[i].pp[1], - s->scale * s->set[set].pary[i].pp[2], - s->scale * s->set[set].pary[i].pp[0] - s->off); + if (cc != NULL && cc[0] >= 0.0) { + s->set[set].ppoly = 1; /* Per poligon color */ } - fprintf(s->fp," ]\n"); - fprintf(s->fp," }\n"); - fprintf(s->fp,"\n"); - fprintf(s->fp," coordIndex [ # Indexes of poligon Verticies \n"); - for (i = 0; i < s->ntris; i++) { - if (s->tary[i].set == set) - fprintf(s->fp," %d, %d, %d, -1\n", s->tary[i].ix[0], s->tary[i].ix[1], s->tary[i].ix[2]); - } - - fprintf(s->fp," ]\n"); - fprintf(s->fp,"\n"); - fprintf(s->fp," colorPerVertex TRUE\n"); - fprintf(s->fp," color Color {\n"); - fprintf(s->fp," color [ # RGB colors of each vertex\n"); + /* - - - - - - - - - - - - */ + if (s->fmt == fmt_vrml) { + if (lines) { + fprintf(s->fp," # Lines\n"); + } else { + fprintf(s->fp," # Triangles and Quads\n"); + } + + fprintf(s->fp," Shape { \n"); + if (lines) + fprintf(s->fp," geometry IndexedLineSet {\n"); + else { + fprintf(s->fp," geometry IndexedFaceSet {\n"); + fprintf(s->fp," ccw FALSE\n"); + fprintf(s->fp," convex TRUE\n"); + if (trans > 0.0) + fprintf(s->fp," solid FALSE\n"); + else + fprintf(s->fp," solid TRUE\n"); + } + fprintf(s->fp,"\n"); + fprintf(s->fp," coord Coordinate { \n"); + fprintf(s->fp," point [ # Verticy coordinates\n"); + + /* Spit out the point values, in order. */ + for (i = 0; i < s->set[set].npoints; i++) { + double xyz[3]; + cs2xyz(s, xyz, s->set[set].pary[i].pp); + fprintf(s->fp," %f %f %f,\n", xyz[0], xyz[1], xyz[2]); + } + fprintf(s->fp," ]\n"); + fprintf(s->fp," }\n"); + fprintf(s->fp,"\n"); + fprintf(s->fp," coordIndex [ # Indexes of %s Verticies \n", + lines ? "line" : "polygon"); + + /* Spit out the lines/triangles/quads */ + for (i = 0; i < s->set[set].ntrqu; i++) { + if (s->set[set].tqary[i].ix[2] < 0) /* Line */ + fprintf(s->fp," %d, %d, -1\n", s->set[set].tqary[i].ix[0], + s->set[set].tqary[i].ix[1]); + else if (s->set[set].tqary[i].ix[3] < 0) /* Triangle */ + fprintf(s->fp," %d, %d, %d, -1\n", s->set[set].tqary[i].ix[0], + s->set[set].tqary[i].ix[1], + s->set[set].tqary[i].ix[2]); + else /* Quad */ + fprintf(s->fp," %d, %d, %d, %d, -1\n", s->set[set].tqary[i].ix[0], + s->set[set].tqary[i].ix[1], + s->set[set].tqary[i].ix[2], + s->set[set].tqary[i].ix[3]); + } + + fprintf(s->fp," ]\n"); + fprintf(s->fp,"\n"); + + if (s->set[set].ppoly) { + fprintf(s->fp," colorPerVertex FALSE\n"); + fprintf(s->fp," color Color {\n"); + fprintf(s->fp," color [ # RGB colors of each line/tri/quad\n"); + + /* Spit out the colors for each line/tri/quad */ + for (i = 0; i < s->set[set].ntrqu; i++) { + double out[3]; + double rgb[3]; + + /* Use line/patch overall supplied color */ + if (cc != NULL && cc[0] >= 0.0) { + fprintf(s->fp," %f %f %f,\n", cc[0], cc[1], cc[2]); + + /* Use per line/tri/quad color */ + } else if (s->set[set].tqary[i].cc[0] >= 0.0) { + fprintf(s->fp," %f %f %f,\n", s->set[set].tqary[i].cc[0], + s->set[set].tqary[i].cc[1], + s->set[set].tqary[i].cc[2]); + + /* Hmm. We can only have all per vertex or all per polygon - */ + /* use natural color of first vertex. */ + } else { + int vx = s->set[set].tqary[i].ix[0]; + if (s->ispace == vrml_rgb) /* RGB */ + icmCpy3(rgb, s->set[set].pary[vx].pp); + else if (s->ispace == vrml_xyz) /* XYZ */ + s->XYZ2RGB(s, rgb, s->set[set].pary[vx].pp); + else /* Lab */ + s->Lab2RGB(s, rgb, s->set[set].pary[vx].pp); + fprintf(s->fp," %f %f %f,\n", rgb[0], rgb[1], rgb[2]); + } + } + fprintf(s->fp," ] \n"); + fprintf(s->fp," }\n"); + + /* Per vertex color */ + } else { + fprintf(s->fp," colorPerVertex TRUE\n"); + fprintf(s->fp," color Color {\n"); + fprintf(s->fp," color [ # RGB colors of each vertex\n"); + + /* Spit out the colors for each vertex */ + for (i = 0; i < s->set[set].npoints; i++) { + double out[3]; + double rgb[3]; + + /* Use vertex color */ + if (s->set[set].pary[i].cc[0] >= 0.0) { + fprintf(s->fp," %f %f %f,\n", + s->set[set].pary[i].cc[0], s->set[set].pary[i].cc[1], s->set[set].pary[i].cc[2]); + + /* Use natural color of vertex */ + } else { + if (s->ispace == vrml_rgb) /* RGB */ + icmCpy3(rgb, s->set[set].pary[i].pp); + else if (s->ispace == vrml_xyz) /* XYZ */ + s->XYZ2RGB(s, rgb, s->set[set].pary[i].pp); + else /* Lab */ + s->Lab2RGB(s, rgb, s->set[set].pary[i].pp); + + fprintf(s->fp," %f %f %f,\n", rgb[0], rgb[1], rgb[2]); + } + } + fprintf(s->fp," ] \n"); + fprintf(s->fp," }\n"); + } + + fprintf(s->fp," }\n"); + fprintf(s->fp," appearance Appearance { \n"); + fprintf(s->fp," material Material {\n"); + fprintf(s->fp," shininess 0.95\n"); + fprintf(s->fp," specularColor .6 .6 .6\n"); + if (trans > 0.0) + fprintf(s->fp," transparency %f\n",trans); + fprintf(s->fp," }\n"); + fprintf(s->fp," }\n"); /* } */ + fprintf(s->fp," } # end Shape\n"); + + /* - - - - - - - - - - - - */ + /* x3d */ + } else { + if (lines) { + fprintf(s->fp," \n"); + } else { + fprintf(s->fp," \n"); + } + + fprintf(s->fp," \n"); + if (lines) + fprintf(s->fp," fp," fp," convex='true'\n"); + fprintf(s->fp," ccw='false'\n"); + if (trans > 0.0) + fprintf(s->fp," solid='false'\n"); + else + fprintf(s->fp," solid='true'\n"); + } + if (s->set[set].ppoly) + fprintf(s->fp," colorPerVertex='false'\n"); + else + fprintf(s->fp," colorPerVertex='true'\n"); + + /* Indexes */ + fprintf(s->fp," coordIndex='\n"); + for (i = 0; i < s->set[set].ntrqu; i++) { + fprintf(s->fp," "); + for (j = 0; j < 4; j++) { + if (s->set[set].tqary[i].ix[j] < 0) + break; + fprintf(s->fp," %d", s->set[set].tqary[i].ix[j]); + } + fprintf(s->fp," -1\n"); + } + fprintf(s->fp," '>\n"); + +#ifdef NEVER + if (s->set[set].ppoly) { + /* colorIndex field is necessary for colorPerVertex=true ? */ + fprintf(s->fp," colorIndex='\n"); + for (i = 0; i < s->set[set].ntrqu; i++) { + fprintf(s->fp," %d\n",i); + } + fprintf(s->fp," -1\n"); + fprintf(s->fp," '>\n"); + } +#endif - /* Spit out the colors for each vertex */ - for (i = 0; i < s->set[set].npoints; i++) { - double out[3]; - double rgb[3]; + /* Coordinates */ + fprintf(s->fp,"\n"); + fprintf(s->fp," \n"); - if (ixcol) { - fprintf(s->fp," %f %f %f,\n",s->set[set].pary[i].cc[0], s->set[set].pary[i].cc[1], s->set[set].pary[i].cc[2]); + /* Color */ + fprintf(s->fp,"\n"); + fprintf(s->fp," \n"); + if (lines) + fprintf(s->fp," \n"); + else + fprintf(s->fp," \n"); + fprintf(s->fp," \n"); + fprintf(s->fp," fp," specularColor='.6 .6 .6'\n"); + if (trans > 0.0) + fprintf(s->fp," transparency='%f'>\n", trans); + else + fprintf(s->fp," >\n"); + /* Hack to workaround bugs in x3dom trasparency */ + if (s->fmt == fmt_x3dom && trans > 0.0) + fprintf(s->fp," \n", trans); + fprintf(s->fp," \n"); + fprintf(s->fp," \n"); + } +} + +/* Output lines using per vertex or per line colors. */ +static void make_lines_vc( +vrml *s, +int set, +double trans /* Transparency level */ +) { + make_line_tri_quad(s, set, trans, NULL); +} + +/* Output lines with overall per line color */ +/* col == NULL or col[0] < 0.0 not to set overall color */ +static void make_lines_cc( +vrml *s, +int set, +double trans, /* Transparency level */ +double cc[3] /* Surface color, cc == NULL or cc[0] < 0.0 for per vertex color */ +) { + make_line_tri_quad(s, set, trans, cc); +} + +/* Add a line defined by vertex index, and set per line color. */ +/* col == NULL or col[0] < 0.0 not to set per line color */ +static void add_col_line(vrml *s, int set, int ix[2], double col[3]) { + + if (set < 0 || set > 9) + error("vrml add_col_line set %d out of range",set); + + if (s->set[set].ntrqu >= s->set[set].taloc) { + s->set[set].taloc = (s->set[set].taloc + 10) * 2; + if (s->set[set].tqary == NULL) + s->set[set].tqary = malloc(s->set[set].taloc * sizeof(struct vrml_triquad)); + else + s->set[set].tqary = realloc(s->set[set].tqary, s->set[set].taloc * sizeof(struct vrml_triquad)); + + if (s->set[set].tqary == NULL) + error("VRML malloc failed at count %d\n",s->set[set].taloc); } - fprintf(s->fp," ] \n"); - fprintf(s->fp," }\n"); - fprintf(s->fp," }\n"); - fprintf(s->fp," appearance Appearance { \n"); - fprintf(s->fp," material Material {\n"); - fprintf(s->fp," transparency %f\n",trans); - fprintf(s->fp," ambientIntensity 0.3\n"); - fprintf(s->fp," shininess 0.5\n"); - fprintf(s->fp," }\n"); - fprintf(s->fp," }\n"); - fprintf(s->fp," } # end Shape\n"); - fprintf(s->fp," ]\n"); - fprintf(s->fp," }\n"); -} - -/* Convert the verticies to triangles with vertex color */ + s->set[set].tqary[s->set[set].ntrqu].ix[0] = ix[0]; + s->set[set].tqary[s->set[set].ntrqu].ix[1] = ix[1]; + s->set[set].tqary[s->set[set].ntrqu].ix[2] = -1; + s->set[set].tqary[s->set[set].ntrqu].ix[3] = -1; + if (col != NULL && col[0] >= 0.0) { + icmCpy3(s->set[set].tqary[s->set[set].ntrqu].cc, col); + s->set[set].ppoly = 1; + } + s->set[set].ntrqu++; +} + +/* Add a line defined by vertex indexes using per vertex color */ +static void add_line(vrml *s, int set, int ix[2]) { + add_col_line(s, set, ix, NULL); +} + +/* Output triangles using per vertex colors. */ static void make_triangles_vc( vrml *s, int set, double trans /* Transparency level */ ) { - make_triangles_imp(s, set, trans, 1, NULL); + make_line_tri_quad(s, set, trans, NULL); } -/* Convert the verticies to triangles with color */ +/* Output triangles with overall per line color */ +/* col == NULL or col[0] < 0.0 not to set overall color */ static void make_triangles( vrml *s, int set, double trans, /* Transparency level */ double cc[3] /* Surface color, cc == NULL or cc[0] < 0.0 for natural color */ ) { - make_triangles_imp(s, set, trans, 0, cc); + make_line_tri_quad(s, set, trans, cc); +} + +/* Add a triangle defined by vertex indexes, and set per triangle color. */ +/* col == NULL or col[0] < 0.0 not to set per line color */ +static void add_col_triangle(vrml *s, int set, int ix[3], double col[3]) { + + if (set < 0 || set > 9) + error("vrml add_col_triangle set %d out of range",set); + + if (s->set[set].ntrqu >= s->set[set].taloc) { + s->set[set].taloc = (s->set[set].taloc + 10) * 2; + if (s->set[set].tqary == NULL) + s->set[set].tqary = malloc(s->set[set].taloc * sizeof(struct vrml_triquad)); + else + s->set[set].tqary = realloc(s->set[set].tqary, s->set[set].taloc * sizeof(struct vrml_triquad)); + + if (s->set[set].tqary == NULL) + error("VRML malloc failed at count %d\n",s->set[set].taloc); + } + s->set[set].tqary[s->set[set].ntrqu].ix[0] = ix[0]; + s->set[set].tqary[s->set[set].ntrqu].ix[1] = ix[1]; + s->set[set].tqary[s->set[set].ntrqu].ix[2] = ix[2]; + s->set[set].tqary[s->set[set].ntrqu].ix[3] = -1; + if (col != NULL && col[0] >= 0.0) { + icmCpy3(s->set[set].tqary[s->set[set].ntrqu].cc, col); + s->set[set].ppoly = 1; + } + s->set[set].ntrqu++; } -/* Add a triangle */ +/* Add a triangles defined by vertex indexes using per vertex color */ static void add_triangle(vrml *s, int set, int ix[3]) { + add_col_triangle(s, set, ix, NULL); +} + +/* Convert the verticies to quads with vertex color */ +static void make_quads_vc( +vrml *s, +int set, +double trans /* Transparency level */ +) { + make_line_tri_quad(s, set, trans, NULL); +} + +/* Convert the verticies to quads with color */ +static void make_quads( +vrml *s, +int set, +double trans, /* Transparency level */ +double cc[3] /* Surface color, cc == NULL or cc[0] < 0.0 for natural color */ +) { + make_line_tri_quad(s, set, trans, cc); +} + +/* Add a quad defined by vertex indexes, and set per quad color. */ +/* col == NULL or col[0] < 0.0 not to set per quad color */ +static void add_col_quad(vrml *s, int set, int ix[4], double col[3]) { if (set < 0 || set > 9) - error("vrml start_line_set set %d out of range",set); + error("vrml add_quad set %d out of range",set); - if (s->ntris >= s->taloc) { - s->taloc = (s->taloc + 10) * 2; - if (s->tary == NULL) - s->tary = malloc(s->taloc * 4 * sizeof(int)); + if (s->set[set].ntrqu >= s->set[set].taloc) { + s->set[set].taloc = (s->set[set].taloc + 10) * 2; + if (s->set[set].tqary == NULL) + s->set[set].tqary = malloc(s->set[set].taloc * sizeof(struct vrml_triquad)); else - s->tary = realloc(s->tary, s->taloc * 4 * sizeof(int)); + s->set[set].tqary = realloc(s->set[set].tqary, s->set[set].taloc * sizeof(struct vrml_triquad)); - if (s->tary == NULL) - error("VRML malloc failed at count %d\n",s->taloc); + if (s->set[set].tqary == NULL) + error("VRML malloc failed at count %d\n",s->set[set].taloc); } - s->tary[s->ntris].set = set; - s->tary[s->ntris].ix[0] = ix[0]; - s->tary[s->ntris].ix[1] = ix[1]; - s->tary[s->ntris].ix[2] = ix[2]; - s->ntris++; + s->set[set].tqary[s->set[set].ntrqu].ix[0] = ix[0]; + s->set[set].tqary[s->set[set].ntrqu].ix[1] = ix[1]; + s->set[set].tqary[s->set[set].ntrqu].ix[2] = ix[2]; + s->set[set].tqary[s->set[set].ntrqu].ix[3] = ix[3]; + if (col != NULL && col[0] >= 0.0) { + icmCpy3(s->set[set].tqary[s->set[set].ntrqu].cc, col); + s->set[set].ppoly = 1; + } + s->set[set].ntrqu++; +} + +/* Add a quad */ +static void add_quad(vrml *s, int set, int ix[4]) { + add_col_quad(s, set, ix, NULL); } + /* Create a gamut surface solid or wireframe from the given gamut. */ /* Use the given transparency level. */ /* Display in natural colors if c[0] < 0.0, */ -/* or the given color otherwise */ +/* or the given color otherwise. Uses set 9 */ static void make_gamut_surface_2( vrml *s, gamut *g, double trans, /* Transparency level */ int wire, /* Z for solid, NZ for wireframe */ -double cc[3] /* Surface color, cc[0] < 0.0 for natural color */ +double cc[3] /* Surface color, cc == NULL or cc[0] < 0.0 for natural color */ ) { int i, nverts, ix; int v[3]; @@ -461,87 +1061,38 @@ double cc[3] /* Surface color, cc[0] < 0.0 for natural color */ if (nverts == 0) return; - fprintf(s->fp," # Gamut surface\n"); - fprintf(s->fp," Transform {\n"); - fprintf(s->fp," translation 0 0 0\n"); - fprintf(s->fp," children [\n"); - fprintf(s->fp," Shape { \n"); - if (wire) { - fprintf(s->fp," geometry IndexedLineSet {\n"); - } else { - fprintf(s->fp," geometry IndexedFaceSet {\n"); -// fprintf(s->fp," ccw FALSE\n"); - fprintf(s->fp," convex TRUE\n"); -#ifdef MAKE_SOLID - fprintf(s->fp," solid FALSE\n"); /* If we want them visible from both sides */ -#endif - } - fprintf(s->fp,"\n"); - fprintf(s->fp," coord Coordinate { \n"); - fprintf(s->fp," point [ # Verticy coordinates\n"); + s->start_line_set(s, 9); - /* Spit out the point values, in order. */ - /* Note that a->x, b->y, L->z */ for (ix = i = 0; ix >= 0 && i < nverts; i++) { double out[3]; ix = g->getvert(g, NULL, out, ix); - fprintf(s->fp," %f %f %f,\n",s->scale * out[1], s->scale * out[2], s->scale * out[0] - s->off); + s->add_vertex(s, 9, out); } - fprintf(s->fp," ]\n"); - fprintf(s->fp," }\n"); - fprintf(s->fp,"\n"); - fprintf(s->fp," coordIndex [ # Indexes of poligon Verticies \n"); g->startnexttri(g); while (g->getnexttri(g, v) == 0) { if (wire) { - if (v[0] < v[1]) /* Only output 1 wire of two on an edge */ - fprintf(s->fp," %d, %d, -1\n", v[0], v[1]); + int ix[2]; + /* Only output 1 wire of two on an edge */ + if (v[0] < v[1]) + ix[0] = v[0], ix[1] = v[1]; if (v[1] < v[2]) - fprintf(s->fp," %d, %d, -1\n", v[1], v[2]); + ix[0] = v[1], ix[1] = v[2]; if (v[2] < v[0]) - fprintf(s->fp," %d, %d, -1\n", v[2], v[0]); + ix[0] = v[2], ix[1] = v[0]; + s->add_line(s, 9, ix); } else { - fprintf(s->fp," %d, %d, %d, -1\n", v[0], v[1], v[2]); + s->add_triangle(s, 9, v); } } - fprintf(s->fp," ]\n"); - fprintf(s->fp,"\n"); - fprintf(s->fp," colorPerVertex TRUE\n"); - fprintf(s->fp," color Color {\n"); - fprintf(s->fp," color [ # RGB colors of each vertex\n"); - /* Spit out the colors for each vertex */ - for (ix = i = 0; ix >= 0 && i < nverts; i++) { - double out[3]; - double rgb[3]; - - ix = g->getvert(g, NULL, out, ix); + if (wire) + s->make_lines_cc(s, 9, trans, cc); + else + s->make_triangles(s, 9, trans, cc); - if (cc == NULL || cc[0] < 0.0) { - if (s->isxyz) - s->XYZ2RGB(s, rgb, out); - else - s->Lab2RGB(s, rgb, out); - fprintf(s->fp," %f %f %f,\n", rgb[0], rgb[1], rgb[2]); - } else { - fprintf(s->fp," %f %f %f,\n", cc[0], cc[1], cc[2]); - } - } - fprintf(s->fp," ] \n"); - fprintf(s->fp," }\n"); - fprintf(s->fp," }\n"); - fprintf(s->fp," appearance Appearance { \n"); - fprintf(s->fp," material Material {\n"); - fprintf(s->fp," transparency %f\n",trans); - fprintf(s->fp," ambientIntensity 0.3\n"); - fprintf(s->fp," shininess 0.5\n"); - fprintf(s->fp," }\n"); - fprintf(s->fp," }\n"); - fprintf(s->fp," } # end Shape\n"); - fprintf(s->fp," ]\n"); - fprintf(s->fp," }\n"); + s->start_line_set(s, 9); } /* Create a gamut surface from the given gamut. */ @@ -552,7 +1103,7 @@ static void make_gamut_surface( vrml *s, gamut *g, double trans, /* Transparency level */ -double cc[3] /* Surface color, cc[0] < 0.0 for natural color */ +double cc[3] /* Surface color, cc == NULL or cc[0] < 0.0 for natural color */ ) { s->make_gamut_surface_2(s, g, trans, 0, cc); } @@ -560,7 +1111,7 @@ double cc[3] /* Surface color, cc[0] < 0.0 for natural color */ /* Add cusp markers from a gamut surface */ /* Use the given transparency level. */ /* Display in natural colors if c[0] < 0.0, */ -/* or the given color otherwise */ +/* or the given color otherwise. */ static void add_cusps( vrml *s, gamut *g, @@ -576,7 +1127,7 @@ double cc[3] /* Surface color, cc[0] < 0.0 for natural color, NULL for default * { 0.1, 0.1, 1.0 }, /* Blue */ { 1.0, 0.1, 1.0 } /* Magenta */ }; - double rgb[3]; + double rgb[3], xyz[3]; double *cv = NULL; int i; int v[3]; @@ -584,36 +1135,22 @@ double cc[3] /* Surface color, cc[0] < 0.0 for natural color, NULL for default * if (g->getcusps(g, cusps) != 0) return; - fprintf(s->fp," # Cusps\n"); for (i = 0; i < 6; i++) { if (cc == NULL) { cv = ccolors[i]; } else if (cc[0] < 0.0) { - if (s->isxyz) + if (s->ispace == vrml_rgb) /* RGB */ + icmCpy3(rgb, cusps[i]); + else if (s->ispace == vrml_xyz) /* XYZ */ s->XYZ2RGB(s, rgb, cusps[i]); - else - s->Lab2RGB(s, rgb, cusps[i]); + else /* Lab */ + s->Lab2RGB(s, rgb, cusps[i]); + cv = rgb; } else { cv = cc; } - fprintf(s->fp,"\n"); - fprintf(s->fp," Transform {\n"); - fprintf(s->fp," translation %f %f %f\n",s->scale * cusps[i][1], s->scale * cusps[i][2], s->scale * cusps[i][0] - s->off); - fprintf(s->fp," children [\n"); - fprintf(s->fp," Shape { \n"); - fprintf(s->fp," geometry Sphere { radius 2.0 }\n"); - fprintf(s->fp," appearance Appearance { \n"); - fprintf(s->fp," material Material {\n"); - fprintf(s->fp," transparency %f\n",trans); - fprintf(s->fp," ambientIntensity 0.3\n"); - fprintf(s->fp," shininess 0.5\n"); - fprintf(s->fp," diffuseColor %f %f %f\n", cv[0],cv[1],cv[2]); - fprintf(s->fp," }\n"); - fprintf(s->fp," }\n"); - fprintf(s->fp," } \n"); - fprintf(s->fp," ]\n"); - fprintf(s->fp," }\n"); + s->add_marker_trans(s, cusps[i], cc, trans, 2.0); } } @@ -626,11 +1163,12 @@ static void clear(vrml *s) { free(s->set[i].pary); s->set[i].pary = NULL; s->set[i].npoints = s->set[i].paloc = 0; + + if (s->set[i].tqary != NULL) + free(s->set[i].tqary); + s->set[i].tqary = NULL; + s->set[i].ntrqu = s->set[i].taloc = 0; } - if (s->tary != NULL) - free(s->tary); - s->tary = NULL; - s->ntris = s->taloc = 0; } /* Helper :- convert a Lab value to RGB for display purposes */ @@ -697,9 +1235,9 @@ static void Lab2RGB(vrml *s, double *out, double *in) { // B = B * 0.85 + 0.15; /* For a white background: */ - R = R * 0.70 + 0.05; - G = G * 0.70 + 0.05; - B = B * 0.70 + 0.05; +// R = R * 0.70 + 0.05; +// G = G * 0.70 + 0.05; +// B = B * 0.70 + 0.05; out[0] = R; out[1] = G; @@ -750,13 +1288,75 @@ static void XYZ2RGB(vrml *s, double *out, double *in) { out[2] = B; } +static int do_flush(vrml *s); static void del_vrml(vrml *s); +/* Global format */ +static vrml_fmt g_fmt = fmt_uninit; + +/* Check and override the global format */ +static void check_format() { + if (g_fmt == fmt_uninit) { + char *ev; + g_fmt = fmt_x3dom; /* Set global default */ + + if ((ev = getenv("ARGYLL_3D_DISP_FORMAT")) != NULL) { + if (stricmp(ev, "VRML") == 0 + || stricmp(ev, "WRL") == 0) + g_fmt = fmt_vrml; + else if (stricmp(ev, "X3D") == 0) + g_fmt = fmt_x3d; + else if (stricmp(ev, "X3DOM") == 0) + g_fmt = fmt_x3dom; + } + } +} + +/* Return the global format file extension */ +static char *ret_ext(vrml_fmt fmt) { + if (fmt == fmt_uninit) + check_format(); + + if (fmt == fmt_x3dom) + return ".x3d.html"; + else if (fmt == fmt_x3d) + return ".x3d"; + else + return ".wrl"; +} + +/* Return the global format type name */ +static char *ret_format(vrml_fmt fmt) { + if (fmt == fmt_uninit) + check_format(); + + if (fmt == fmt_x3dom) + return "X3DOM"; + else if (fmt == fmt_x3d) + return "X3D"; + else + return "VRML"; +} + +/* Return this files format extension (i.e. ".wrl" */ +static char *get_ext(vrml *s) { + return ret_ext(s->fmt); +} + +/* Return this files format type name */ +static char *get_format(vrml *s) { + return ret_format(s->fmt); +} + /* Constructor */ -vrml *new_vrml( +/* ispace = 0 = L*a*b* */ +/* ispace = 1 = XYZ scale (range 0..1) */ +/* ispace = 2 = RGB scale (range 0..1) */ +vrml *new_vrml_vdist( char *name, int doaxes, -int isxyz +vrml_space ispace, +double vdist ) { vrml *s; @@ -767,60 +1367,202 @@ int isxyz return NULL; } - s->del = del_vrml; - s->add_marker = add_marker; - s->add_cone = add_cone; - s->add_text = add_text; - s->start_line_set = start_line_set; - s->add_vertex = add_vertex; - s->add_col_vertex = add_col_vertex; - s->make_last_vertex = make_last_vertex; - s->add_triangle = add_triangle; - s->make_lines = make_lines; - s->make_triangles = make_triangles; - s->make_triangles_vc = make_triangles_vc; - s->make_gamut_surface = make_gamut_surface; + if ((s->name = (char *)malloc(strlen(name) + 10)) == NULL) { + warning("Malloc of vrml name failed"); + free(s); + return NULL; + } + + s->ext = get_ext; + s->format = get_format; + s->flush = do_flush; + s->del = del_vrml; + + s->add_marker = add_marker; + s->add_marker_trans = add_marker_trans; + s->add_cone = add_cone; + s->add_text = add_text; + s->start_line_set = start_line_set; + s->add_vertex = add_vertex; + s->add_col_vertex = add_col_vertex; + s->make_last_vertex = make_last_vertex; + s->make_lines = make_lines; + s->make_points = make_points; + s->add_line = add_line; + s->add_col_line = add_col_line; + s->make_lines_vc = make_lines_vc; + s->make_lines_cc = make_lines_cc; + s->add_triangle = add_triangle; + s->add_col_triangle = add_col_triangle; + s->make_triangles_vc = make_triangles_vc; + s->make_triangles = make_triangles; + s->add_quad = add_quad; + s->add_col_quad = add_col_quad; + s->make_quads_vc = make_quads_vc; + s->make_quads = make_quads; + s->make_gamut_surface = make_gamut_surface; s->make_gamut_surface_2 = make_gamut_surface_2; - s->add_cusps = add_cusps; - s->clear = clear; - s->Lab2RGB = Lab2RGB; - s->XYZ2RGB = XYZ2RGB; + s->add_cusps = add_cusps; + s->clear = clear; + s->Lab2RGB = Lab2RGB; + s->XYZ2RGB = XYZ2RGB; + + if (g_fmt == fmt_uninit) + check_format(); + s->fmt = g_fmt; /* Use global format */ - s->isxyz = isxyz; + s->ispace = ispace; - if (s->isxyz) { + if (s->ispace == vrml_rgb) { /* RGB, scale 0..1 to 0..100 */ s->scale = 100.0; - s->off = 50.0; - } else { - s->scale = 1.0; - s->off = 50.0; + s->off = 0.0; + + } else if (s->ispace == vrml_xyz) { /* XYZ, scale 0..1 to 0..100 */ + s->scale = 100.0; + s->off = 50.0; /* z axis offset */ + + } else { /* L*a*b*, leav 0..100 */ + s->scale = 1.0; + s->off = 50.0; /* z axis offset */ + } + + + /* Create filename with the right exension */ + { + char *xl = NULL; + strcpy(s->name, name); + if ((xl = strrchr(s->name, '.')) != NULL) { /* Found extension */ + /* Hmm. Could set format from extension ?? */ + if (stricmp(xl, ".wrl") != 0 + && stricmp(xl, ".vrml") != 0 + && stricmp(xl, ".x3d") != 0 + && stricmp(xl, ".x3dom") != 0 + && stricmp(xl, ".html") != 0) + xl = NULL; /* Don't override extension */ + } + if (xl == NULL) + xl = s->name + strlen(s->name); + strcpy(xl, vrml_ext()); } - if ((s->fp = fopen(name,"w")) == NULL) { - warning("Opening of vrml plot file '%s' for write failed",name); + if ((s->fp = fopen(s->name,"w")) == NULL) { + warning("Opening of vrml plot file '%s' for write failed",s->name); free(s); return NULL; } - fprintf(s->fp,"#VRML V2.0 utf8\n"); - fprintf(s->fp,"\n"); - fprintf(s->fp,"# Created by the Argyll CMS\n"); - fprintf(s->fp,"Transform {\n"); - fprintf(s->fp," children [\n"); - fprintf(s->fp,"\n"); - fprintf(s->fp," NavigationInfo {\n"); - fprintf(s->fp," type \"EXAMINE\" # It's an object we examine\n"); - fprintf(s->fp," } # We'll add our own light\n"); - fprintf(s->fp,"\n"); - fprintf(s->fp," DirectionalLight {\n"); - fprintf(s->fp," direction 0 0 -1 # Light illuminating the scene\n"); - fprintf(s->fp," direction 0 -1 0 # Light illuminating the scene\n"); - fprintf(s->fp," }\n"); - fprintf(s->fp,"\n"); - fprintf(s->fp," Viewpoint {\n"); - fprintf(s->fp," position 0 0 340 # Position we view from\n"); - fprintf(s->fp," }\n"); - fprintf(s->fp,"\n"); + /* Output header and prolog */ + if (s->fmt == fmt_vrml) { + fprintf(s->fp,"#VRML V2.0 utf8\n"); + fprintf(s->fp,"\n"); + fprintf(s->fp,"# Created by the Argyll CMS\n"); + fprintf(s->fp,"Transform {\n"); + fprintf(s->fp," children [\n"); + fprintf(s->fp,"\n"); + fprintf(s->fp," NavigationInfo {\n"); + fprintf(s->fp," type \"EXAMINE\" # It's an object we examine\n"); + fprintf(s->fp," headlight FALSE\n"); + fprintf(s->fp," } # We'll add our own light\n"); + fprintf(s->fp,"\n"); + fprintf(s->fp," DirectionalLight {\n"); + fprintf(s->fp," intensity 0.4\n"); + fprintf(s->fp," ambientIntensity 0.05\n"); + fprintf(s->fp," direction 1 1 -1\n"); + fprintf(s->fp," }\n"); + fprintf(s->fp," DirectionalLight {\n"); + fprintf(s->fp," intensity 0.4\n"); + fprintf(s->fp," ambientIntensity 0.05\n"); + fprintf(s->fp," direction 0 -0.7 -1\n"); + fprintf(s->fp," }\n"); + fprintf(s->fp," DirectionalLight {\n"); + fprintf(s->fp," intensity 0.4\n"); + fprintf(s->fp," ambientIntensity 0.05\n"); + fprintf(s->fp," direction -0.7 0 -1\n"); + fprintf(s->fp," }\n"); + fprintf(s->fp," DirectionalLight {\n"); + fprintf(s->fp," intensity 0.4\n"); + fprintf(s->fp," ambientIntensity 0.05\n"); + fprintf(s->fp," direction -1 -1 1\n"); + fprintf(s->fp," }\n"); + fprintf(s->fp," DirectionalLight {\n"); + fprintf(s->fp," intensity 0.4\n"); + fprintf(s->fp," ambientIntensity 0.05\n"); + fprintf(s->fp," direction 0 0.7 1\n"); + fprintf(s->fp," }\n"); + fprintf(s->fp," DirectionalLight {\n"); + fprintf(s->fp," intensity 0.4\n"); + fprintf(s->fp," ambientIntensity 0.05\n"); + fprintf(s->fp," direction 0.7 0 1\n"); + fprintf(s->fp," }\n"); + fprintf(s->fp,"\n"); + fprintf(s->fp," Viewpoint {\n"); + fprintf(s->fp," position 0 0 %f # Position we view from\n",vdist); + fprintf(s->fp," }\n"); + fprintf(s->fp,"\n"); + + } else { + /* For some strange reason, x3dom can't handle some tags that don't have a */ + /* discrete closing tag. Is this XML or what ??? */ + + if (s->fmt == fmt_x3dom) { + fprintf(s->fp,"\n"); + fprintf(s->fp,"\n"); + fprintf(s->fp," \n"); + fprintf(s->fp," \n"); + fprintf(s->fp," \n"); + fprintf(s->fp," \n"); + fprintf(s->fp," \n"); + fprintf(s->fp," \n"); + fprintf(s->fp," \n"); + fprintf(s->fp," fp," x='0px' y='0px' width='100%%' height='70%%'\n"); + fprintf(s->fp," id='someUniqueId' showStat='false' showLog='false'>\n"); + } else { + fprintf(s->fp,"\n"); + fprintf(s->fp,"\n"); + fprintf(s->fp,"\n"); + } + fprintf(s->fp," \n"); + if (s->fmt == fmt_x3dom) { + /* To match other renderers, we turn Gamma encoded output off :-( :-( :-( */ + fprintf(s->fp," \n"); + } + fprintf(s->fp," \n"); + fprintf(s->fp," \n"); + fprintf(s->fp," \n"); + fprintf(s->fp," fp," intensity='0.4'\n"); + fprintf(s->fp," ambientIntensity='0.05'\n"); + fprintf(s->fp," direction='1 1 -1'\n"); + fprintf(s->fp," >\n"); + fprintf(s->fp," fp," intensity='0.3'\n"); + fprintf(s->fp," ambientIntensity='0.05'\n"); + fprintf(s->fp," direction='0 -0.7 -1'\n"); + fprintf(s->fp," >\n"); + fprintf(s->fp," fp," intensity='0.4'\n"); + fprintf(s->fp," ambientIntensity='0.05'\n"); + fprintf(s->fp," direction='-0.7 0 -1'\n"); + fprintf(s->fp," >\n"); + fprintf(s->fp," fp," intensity='0.4'\n"); + fprintf(s->fp," ambientIntensity='0.05'\n"); + fprintf(s->fp," direction='-1 -1 1'\n"); + fprintf(s->fp," >\n"); + fprintf(s->fp," fp," intensity='0.3'\n"); + fprintf(s->fp," ambientIntensity='0.05'\n"); + fprintf(s->fp," direction='0 0.7 1'\n"); + fprintf(s->fp," >\n"); + fprintf(s->fp," fp," intensity='0.4'\n"); + fprintf(s->fp," ambientIntensity='0.05'\n"); + fprintf(s->fp," direction='0.7 0 1'\n"); + fprintf(s->fp," >\n"); + fprintf(s->fp," \n",vdist); + } + if (doaxes != 0) { /* Axes definition */ struct { @@ -828,7 +1570,7 @@ int isxyz double x, y, z; /* == a,b,L or Y,Z,X */ double wx, wy, wz; double r, g, b; - } axes[2][6] = { + } axes[3][6] = { { /* Box coords are center and size: */ { "L", 0, 0, 50, 2, 2, 100, .7, .7, .7 }, /* L axis */ { "+a", 50, 0, 0, 100, 2, 2, 1, 0, 0 }, /* +a (red) axis */ @@ -841,15 +1583,32 @@ int isxyz { "Y", 50, 0, 0, 100, 2, 2, 1, 0, 0 }, /* Y (red) axis */ { "Z", 0, 50, 0, 2, 100, 2, 0, 0, 1 }, /* Z (blue) axis */ { NULL }, + }, { + { "R", 50, 0, 0, 100, 2, 2, 1, 0, 0 }, /* R (red) */ + { "G", 0, 50, 0, 2, 100, 2, 0, 1, 0 }, /* G (green) axis */ + { "B", 0, 0, 50, 2, 2, 100, 0, 0, 1 }, /* B (blue) axis */ + { NULL }, } }; - if (s->isxyz) { + if (s->ispace == 2) { + j = 2; + if (s->fmt == fmt_vrml) + fprintf(s->fp," # RGB axes as boxes:\n"); + else + fprintf(s->fp," \n"); + } else if (s->ispace == 1) { j = 1; - fprintf(s->fp," # XYZ axes as boxes:\n"); + if (s->fmt == fmt_vrml) + fprintf(s->fp," # XYZ axes as boxes:\n"); + else + fprintf(s->fp," \n"); } else { j = 0; - fprintf(s->fp," # Lab axes as boxes:\n"); + if (s->fmt == fmt_vrml) + fprintf(s->fp," # Lab axes as boxes:\n"); + else + fprintf(s->fp," \n"); } for (i = 0; ; i++) { double toff[3] = { -3.0, -2.0, 0 }; @@ -857,17 +1616,33 @@ int isxyz if (axes[j][i].label == NULL) break; - fprintf(s->fp," Transform { translation %f %f %f\n", axes[j][i].x, axes[j][i].y, axes[j][i].z - s->off); - fprintf(s->fp," children [\n"); - fprintf(s->fp," Shape {\n"); - fprintf(s->fp," geometry Box { size %f %f %f }\n", - axes[j][i].wx, axes[j][i].wy, axes[j][i].wz); - fprintf(s->fp," appearance Appearance {"); - fprintf(s->fp," material Material { diffuseColor %f %f %f }\n", axes[j][i].r, axes[0][i].g, axes[0][i].b); - fprintf(s->fp," }\n"); - fprintf(s->fp," }\n"); - fprintf(s->fp," ]\n"); - fprintf(s->fp," }\n"); + if (s->fmt == fmt_vrml) { + fprintf(s->fp,"\tTransform { translation %f %f %f\n", + axes[j][i].x, axes[j][i].y, axes[j][i].z - s->off); + fprintf(s->fp,"\t\tchildren [\n"); + fprintf(s->fp,"\t\t\tShape {\n"); + fprintf(s->fp,"\t\t\t\tgeometry Box { size %f %f %f }\n", + axes[j][i].wx, axes[j][i].wy, axes[j][i].wz); + fprintf(s->fp,"\t\t\t\tappearance Appearance {\n"); + fprintf(s->fp,"\t\t\t\t\tmaterial Material { diffuseColor %f %f %f }\n", + axes[j][i].r, axes[j][i].g, axes[j][i].b); + fprintf(s->fp,"\t\t\t\t}\n"); + fprintf(s->fp,"\t\t\t}\n"); + fprintf(s->fp,"\t\t]\n"); + fprintf(s->fp,"\t}\n"); + } else { + fprintf(s->fp," \n", + axes[j][i].x, axes[j][i].y, axes[j][i].z - s->off); + fprintf(s->fp," \n"); + fprintf(s->fp," \n"); + fprintf(s->fp," \n", + axes[j][i].r, axes[j][i].g, axes[j][i].b); + fprintf(s->fp," \n"); + fprintf(s->fp," \n", + axes[j][i].wx, axes[j][i].wy, axes[j][i].wz); + fprintf(s->fp," \n"); + fprintf(s->fp," \n"); + } if (fabs(axes[j][i].x) > fabs(axes[j][i].y) && fabs(axes[j][i].x) > fabs(axes[j][i].z)) { if (axes[j][i].x > 0.0) @@ -886,43 +1661,184 @@ int isxyz toff[2] += axes[j][i].z - 0.5 * axes[j][i].wz - 5.0; } - fprintf(s->fp,"Transform { translation %f %f %f\n", toff[0], toff[1], toff[2] - s->off); - fprintf(s->fp,"\tchildren [\n"); - fprintf(s->fp,"\t\tShape {\n"); - fprintf(s->fp,"\t\t\tgeometry Text { string [\"%s\"]\n",axes[j][i].label); - fprintf(s->fp,"\t\t\t\tfontStyle FontStyle { family \"SANS\" style \"BOLD\" size %f }\n", - 10.0); - fprintf(s->fp,"\t\t\t\t}\n"); - fprintf(s->fp,"\t\t\tappearance Appearance { material Material "); - fprintf(s->fp,"{ diffuseColor %f %f %f} }\n", axes[j][i].r, axes[j][i].g, axes[j][i].b); - fprintf(s->fp,"\t\t}\n"); - fprintf(s->fp,"\t]\n"); + if (s->fmt == fmt_vrml) { + fprintf(s->fp,"\tTransform { translation %f %f %f\n", + toff[0], toff[1], toff[2] - s->off); + fprintf(s->fp,"\t\tchildren [\n"); + fprintf(s->fp,"\t\t\tShape {\n"); + fprintf(s->fp,"\t\t\t\tgeometry Text { string [\"%s\"]\n",axes[j][i].label); + fprintf(s->fp,"\t\t\t\t\tfontStyle FontStyle { family \"SANS\" style \"BOLD\" size %f }\n", + 7.0); + fprintf(s->fp,"\t\t\t\t\t}\n"); + fprintf(s->fp,"\t\t\t\tappearance Appearance { material Material "); + fprintf(s->fp,"\t{ diffuseColor %f %f %f } }\n", + axes[j][i].r, axes[j][i].g, axes[j][i].b); + fprintf(s->fp,"\t\t\t}\n"); + fprintf(s->fp,"\t\t]\n"); + fprintf(s->fp,"\t}\n"); + } else { + fprintf(s->fp," \n", + toff[0], toff[1], toff[2] - s->off); + fprintf(s->fp," \n"); + fprintf(s->fp," \n"); + fprintf(s->fp," \n", + axes[j][i].r, axes[j][i].g, axes[j][i].b); + fprintf(s->fp," \n"); + fprintf(s->fp," \n",axes[j][i].label); + fprintf(s->fp," \n", 7.0); + fprintf(s->fp," \n"); + fprintf(s->fp," \n"); + fprintf(s->fp," \n"); + } + } + } + return s; +} + +vrml *new_vrml( +char *name, +int doaxes, +vrml_space ispace +) { + return new_vrml_vdist(name, doaxes, ispace, 340.0); +} + +/* The X3DOM files */ +unsigned char x3dom_css[] = { +#include "x3dom.css.h" +}; +#define x3dom_css_len sizeof(x3dom_css) + +unsigned char x3dom_js[] = { +#include "x3dom.js.h" +}; +#define x3dom_js_len sizeof(x3dom_js) + + +/* Finish writing the file */ +/* Return nz on error */ +static int do_flush(vrml *s) { + int rv = 0; + + if (!s->written) { + + if (s->fmt == fmt_vrml) { + fprintf(s->fp,"\n"); + fprintf(s->fp," ] # end of children for world\n"); fprintf(s->fp,"}\n"); + } else { + fprintf(s->fp," \n"); + fprintf(s->fp," \n"); + if (s->fmt == fmt_x3dom) { + fprintf(s->fp," \n"); + fprintf(s->fp," \n"); + fprintf(s->fp,"\n"); + } else { + fprintf(s->fp,"\n"); + } } - fprintf(s->fp,"\n"); + + fflush(s->fp); + rv = fclose(s->fp); + + + /* Check that there are the x3dom files with the output file */ + if (s->fmt == fmt_x3dom) { + char *xl, *x3name; + struct sys_stat sbuf; + FILE *fp; + char *oflags = +#if !defined(O_CREAT) && !defined(_O_CREAT) // No O_BINARY possible +# error "Need to #include fcntl.h!" +#endif +#if defined(O_BINARY) || defined(_O_BINARY) + "wb"; +#else + "w"; +#endif + + if ((x3name = (char *)malloc(strlen(s->name) + 20)) == NULL) { + warning("VRML: failed to malloc x3dom filename\n",rv); + return -1; + } + + strcpy(x3name, s->name); + // Locate start of filename + if ((xl = strrchr(x3name, '/')) == NULL + && (xl = strrchr(x3name, '\\')) == NULL + && (xl = strrchr(x3name, ':')) == NULL) + xl = x3name; + else + xl++; + + strcpy(xl, "x3dom.css"); + if (sys_stat(x3name, &sbuf) != 0 + || sbuf.st_size != x3dom_css_len) { +// printf("Can't locate '%s' or wrong size\n",x3name); + + if ((fp = fopen(x3name, oflags)) == NULL) { + warning("Opening '%s' for write failed",x3name); + return -1; + } + + if (fwrite((void *)x3dom_css, sizeof(char), x3dom_css_len, fp) != x3dom_css_len + || fclose(fp) != 0) { + warning("Writing '%s'failed",x3name); + return -1; + } +// printf("Written '%s' %d bytes\n",x3name,x3dom_css_len); + } + + strcpy(xl, "x3dom.js"); + if (sys_stat(x3name, &sbuf) != 0 + || sbuf.st_size != x3dom_js_len) { +// printf("Can't locate '%s'\n",x3name); + + if ((fp = fopen(x3name, oflags)) == NULL) { + warning("Opening '%s' for write failed",x3name); + return -1; + } + + if (fwrite((void *)x3dom_js, sizeof(char), x3dom_js_len, fp) != x3dom_js_len + || fclose(fp) != 0) { + warning("Writing '%s'failed",x3name); + return -1; + } +// printf("Written '%s' %d bytes\n",x3name,x3dom_js_len); + } + free(x3name); + } + + s->written = 1; } + return rv; +} - return s; +/* Return the global format file extension */ +char *vrml_ext() { + return ret_ext(g_fmt); +} + +/* Return the global format type name */ +char *vrml_format() { + return ret_format(g_fmt); } /* Finish writing the file and free ourselves */ static void del_vrml(vrml *s) { - int i; - - fprintf(s->fp,"\n"); - fprintf(s->fp," ] # end of children for world\n"); - fprintf(s->fp,"}\n"); + int i, rv; - fflush(s->fp); - if (fclose(s->fp) != 0) - error("VRML: Error closing VRML file\n"); + if ((rv = do_flush(s)) != 0) + error("VRML: Error %d closing VRML file\n",rv); for (i = 0; i < 10; i++) { if (s->set[i].pary) free(s->set[i].pary); + if (s->set[i].tqary) + free(s->set[i].tqary); } - if (s->tary) - free(s->tary); + if (s->name != NULL) + free(s->name); free(s); } diff --git a/plot/vrml.h b/plot/vrml.h index e3991c5..ff44a6c 100644 --- a/plot/vrml.h +++ b/plot/vrml.h @@ -11,42 +11,104 @@ * see the License.txt file for licencing details. */ +/* Set global format using environment variable: + + ARGYLL_3D_DISP_FORMAT to "VRML", "X3D" or "X3DOM". +*/ + +/* Problems with .x3d using FreeWRL: + + Latest version makes surface colors look emissive, and you can't see + the poligon edges == no detail. + + Lighting is weird - some stuff is black unless -1-1-1 light intensity is turned up. + + Poor navigation. + + Text size is different to Cosmo. +*/ + +/* Output format */ +typedef enum { + fmt_uninit = -1, + fmt_vrml = 0, + fmt_x3d = 1, + fmt_x3dom = 2 +} vrml_fmt; + +/* (Make sure all callers are using vrml_space enum. before changing any values) */ +typedef enum { + vrml_lab = 0, /* L*a*b* 0..100 */ + vrml_xyz = 1, /* XYZ scale 0..1 */ + vrml_rgb = 2 /* RGB scale 0..1 */ +} vrml_space; + + +struct vrml_point { + double pp[3]; /* Vertex position */ + double cc[3]; /* Vertex color */ + int last; /* Last vertex of line flag */ +}; + +struct vrml_triquad { + int ix[4]; + double cc[3]; /* Per polygon color if ppoly, natural if cc[0] < 0 */ +}; + struct _vrml { /* Private: */ + char *name; /* Name including extension */ FILE *fp; - int isxyz; /* nz if XYZ plot, (range 0..1) */ + int written; /* Set to nz when file has been written */ + + vrml_fmt fmt; /* Format to output. Defaults to global format */ + /* (Have to add ext() and format() methods if we change this) */ + vrml_space ispace; /* 0 if Lab, 1 if XYZ plot, (range 0..1), 2 if RGB (range 0..1) */ double scale; /* Scale factor to use (applied before off) */ - double off; /* Gamut L center, usually 50, to put 50 at center of view */ + double off; /* Gamut L center, usually 50, to put Z 0 at center of view */ - /* Expandable point arrays */ + /* Expandable point and line/patch arrays */ struct { int npoints; int paloc; - struct { - double pp[3]; /* Vertex position */ - double cc[3]; /* Vertex color */ - int last; /* Last vertex of line flag */ - } *pary; - } set[10]; /* Ten sets */ - - /* Expandable triangle vertex index */ - int ntris; - int taloc; - struct { int set; int ix[3]; } *tary; + struct vrml_point *pary; + + /* Expandable line/triangle/quad vertex index */ + /* (Line has ix[2] = -1, Triangle has ix[3] = -1) */ + int ntrqu; + int taloc; + struct vrml_triquad *tqary; + + int ppoly; /* Use per poligon color rather than vertex */ + + } set[10]; /* Up to ten sets */ /* Public: */ /* Methods */ + /* Return this files format extension (i.e. ".wrl" */ + char *(*ext)(struct _vrml *s); + + /* Return this files format type name */ + char *(*format)(struct _vrml *s); + + /* Write the file out. Return nz on error */ + int (*flush)(struct _vrml *s); + /* Finish writing the file and free ourselves */ void (*del)(struct _vrml *s); + /* Add a spherical marker point to the plot. col == NULL for natural color */ /* (Need to do this before or after start_line_set()/dd_vertex()/make_lines() !) */ void (*add_marker)(struct _vrml *s, double pos[3], double col[3], double rad); + /* Add a spherical marker with transparency */ + void (*add_marker_trans)(struct _vrml *s, double pos[3], double col[3], double trans, double rad); + /* Add a cone marker to the plot. col == NULL for natural color */ /* (Need to do this before or after start_line_set()/dd_vertex()/make_lines() !) */ void (*add_cone)(struct _vrml *s, double p0[3], double p1[3], double col[3], double rad); @@ -56,33 +118,81 @@ struct _vrml { void (*add_text)(struct _vrml *s, char *text, double p[3], double col[3], double size); - /* Start building up verticies that will be converted to lines */ - /* Set can be from 0 - 9 */ + /* Start building up verticies that will be converted to lines, triangles or quads. */ + /* Set can be from 0 - 9 (call this before add_vertx() etc) */ void (*start_line_set)(struct _vrml *s, int set); - /* Add a verticy (color automatic from Lab position) */ - void (*add_vertex)(struct _vrml *s, int set, double pos[3]); + /* Add a verticy (default natural color from pos.) */ + /* Return the index number */ + int (*add_vertex)(struct _vrml *s, int set, double pos[3]); + + /* Add a verticy with per vertex color */ + /* Return the index number */ + int (*add_col_vertex)(struct _vrml *s, int set, double pos[3], double col[3]); + - /* Add a verticy with color */ - void (*add_col_vertex)(struct _vrml *s, int set, double pos[3], double col[3]); + /* Turn all the vertexes into a set of points */ + void (*make_points)(struct _vrml *s, int set); - /* Turn the last added vertex into the last vertex of the line */ + //void (*make_col_points)(struct _vrml *s, int set, double col[3]); + + + /* Turn the last added vertex into the last vertex of the line (incremental line creation) */ + /* (Sets .last flag on vertex) */ void (*make_last_vertex)(struct _vrml *s, int set); /* Convert the verticies to lines, ppset verticies per line (or using .last flag) */ - /* Use large ppset for just .last flag */ + /* and output all the lines, using per vertex color. */ + /* Use ppset > no verticies for just .last flag */ void (*make_lines)(struct _vrml *s, int set, int ppset); - /* Add a triangles vertexes defined by vertex index */ + + /* Add a line defined by vertex indexes using per vertex color */ + void (*add_line)(struct _vrml *s, int set, int ix[2]); + + /* Add a line defined by vertex index, and set per line color. */ + /* col == NULL or col[0] < 0.0 not to set per line color */ + void (*add_col_line)(struct _vrml *s, int set, int ix[2], double col[3]); + + /* Output lines using per vertex or per line colors. */ + void (*make_lines_vc)(struct _vrml *s, int set, double trans); + + /* Output lines with overall per line color */ + /* col == NULL or col[0] < 0.0 not to set overall color */ + void (*make_lines_cc)(struct _vrml *s, int set, double trans, double col[3]); + + + /* Add a triangles defined by vertex indexes using per vertex color */ void (*add_triangle)(struct _vrml *s, int set, int ix[3]); - /* Convert the triangle vertexes to triangles with overall color */ - void (*make_triangles)(struct _vrml *s, int set, double trans, double col[3]); + /* Add a triangle defined by vertex indexes, and set per triangle color. */ + /* col == NULL or col[0] < 0.0 not to set per line color */ + void (*add_col_triangle)(struct _vrml *s, int set, int ix[3], double col[3]); - /* Convert the triangle vertexes to triangles using vertex colors */ + /* Output triangles using per vertex colors. */ void (*make_triangles_vc)(struct _vrml *s, int set, double trans); - /* Clear verticies and triangles */ + /* Output triangles with overall per line color */ + /* col == NULL or col[0] < 0.0 not to set overall color */ + void (*make_triangles)(struct _vrml *s, int set, double trans, double col[3]); + + + /* Add a quad defined by vertex index using per vertex color */ + void (*add_quad)(struct _vrml *s, int set, int ix[4]); + + /* Add a quad defined by vertex indexes, and set per quad color. */ + /* col == NULL or col[0] < 0.0 not to set per quad color */ + void (*add_col_quad)(struct _vrml *s, int set, int ix[4], double col[3]); + + /* Output quads using per vertex colors. */ + void (*make_quads_vc)(struct _vrml *s, int set, double trans); + + /* Output quads with overall per line color. */ + /* col == NULL or col[0] < 0.0 not to set overall color */ + void (*make_quads)(struct _vrml *s, int set, double trans, double col[3]); + + + /* Clear verticies and lines/triangles/quads */ void (*clear)(struct _vrml *s); /* Helper :- convert a Lab value to RGB */ @@ -91,23 +201,35 @@ struct _vrml { /* Helper :- convert a XYZ value to RGB */ void (*XYZ2RGB)(struct _vrml *s, double *out, double *in); + /* Always put these last */ #ifdef GAMUT_H /* If gamut.h is #included ahead of us */ /* Create a solid gamut surface from the given gamut */ - /* trans is trasparency, cc is surface color, cc[0] < 0.0 for natural */ + /* trans is trasparency, cc is surface color, cc[0] < 0.0 for natural (Uses set 9) */ void (*make_gamut_surface)(struct _vrml *s, gamut *g, double trans, double cc[3]); - /* Create a solid or wireframe gamut surface from the given gamut */ + /* Create a solid or wireframe gamut surface from the given gamut (Uses set 9) */ /* trans is trasparency, cc is surface color, cc[0] < 0.0 for natural */ void (*make_gamut_surface_2)(struct _vrml *s, gamut *g, double trans, int wire, double cc[3]); - /* Add cusp markers from the gamut surface */ + /* Add cusp markers from the gamut surface) */ void (*add_cusps)(struct _vrml *s, gamut *g, double trans, double cc[3]); #endif /* GAMUT_H */ }; typedef struct _vrml vrml; -/* Constructor. */ -vrml *new_vrml(char *name, int doaxes, int isxyz); +/* Return the global file format extension (i.e. ".wrl" */ +char *vrml_ext(); + +/* Return the global file format type name */ +char *vrml_format(); + +/* Create a vrml/x3d plot object. */ +/* Filename will have appropriate extension added automatically. */ +vrml *new_vrml_vdist(char *name, int doaxes, vrml_space ispace, double vdist); + +/* Same as above but override default Z viewing distance */ +vrml *new_vrml(char *name, int doaxes, vrml_space ispace); + #define VRML_H #endif /* VRML_H */ diff --git a/plot/x3dom.css b/plot/x3dom.css new file mode 100644 index 0000000..c92109d --- /dev/null +++ b/plot/x3dom.css @@ -0,0 +1,232 @@ +/* + * X3DOM JavaScript Library + * http://www.x3dom.org + * + * (C)2009 Fraunhofer IGD, Darmstadt, Germany + * Dual licensed under the MIT and GPL + * + * Based on code originally provided by + * Philip Taylor: http://philip.html5.org + */ + +body { + background-color: white; + font-family: Helvetica, sans-serif; + font-size: 12px; +} + +X3D, x3d { + position:relative; /* in order to be able to position stat-div within X3D */ + float:left; /* float the element so it has the same size like the canvas */ + cursor:pointer; + margin: 0; + padding: 0; + border: 1px solid #000; +} + +object { + margin: 0; + padding: 0; + border: none; + z-index: 0; + width:100%; + height:100%; + float:left; +} + +X3D:hover, +x3d:hover, +.x3dom-canvas:hover { + -webkit-user-select: none; + -webkit-touch-callout: none; +} + +.x3dom-canvas { + border:none; + cursor:pointer; + cursor:-webkit-grab; + cursor:grab; + width:100%; + height:100%; + float:left; +} + +.x3dom-canvas-mousedown { + cursor:-webkit-grabbing; + cursor:grabbing; +} + +.x3dom-canvas:focus { + outline:none; +} +.x3dom-progress { + margin: 0; + padding: 6px 8px 0px 26px; + left: 0px; + top: 0px; + position: absolute; + color: #0f0; + font-family: Helvetica, sans-serif; + line-height:10px; + font-size: 10px; + min-width: 45px; + min-height: 20px; + border: 0px; + background-position: 4px 4px; + background-repeat: no-repeat; + background-color: #333; + background-color: rgba(51, 51, 51, 0.9); + z-index: 100; + background-image: 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+} + +.x3dom-progress.bar span { + position: absolute; + left: 0; + top: 0; + line-height: 20px; + background-color: red; +} + + +.x3dom-statdiv { + margin: 0; + padding: 0; + right: 10px; + top: 10px; + position: absolute; + color: #0f0; + font-family: Helvetica, sans-serif; + line-height:10px; + font-size: 10px; + width: 75px; + height: 70px; + border: 0px; +} + +#x3dom-state-canvas { + margin: 2px; + padding: 0; + right: 0%; + top: 0%; + position: absolute; +} + +#x3dom-state-viewer { + position: absolute; + margin: 2px; + padding: 5px; + width: 135px; + top: 0%; + right: 0%; + opacity: 0.9; + background-color: #323232; + z-index: 1000; + font-family: Arial, sans-serif; + color: #C8C8C8; + font-weight: bold; + text-transform: uppercase; + cursor: help; +} + +.x3dom-states-head { + display: block; + font-size: 26px; +} + +.x3dom-states-rendermode-software { + font-size: 10px; + margin: 0 0 2px 2px; +} + +.x3dom-states-rendermode-hardware { + font-size: 10px; + margin: 0 0 2px 2px; +} + +.x3dom-states-head2 { + font-size: 10px; +} + +.x3dom-states-list { + float: left; + width: 100%; + border-top: 1px solid #C8C8C8; + list-style: none; + font-size: 9px; + line-height: 16px; + margin:0; + padding: 0; + padding-top: 2px; +} + +.x3dom-states-item { + width: 100%; + float: left; +} + +.x3dom-states-item-title { + float: left; + margin-left: 2px; +} + +.x3dom-states-item-value { + float: right; + margin-right: 2px; +} + +.x3dom-touch-marker { + display: inline; + padding: 5px; + border-radius: 10px; + position: absolute; + font-family: Helvetica, sans-serif; + line-height:10px; + font-size: 10px; + color: darkorange; + background: cornsilk; + opacity: 0.6; + border: 2px solid orange; + z-index: 200; +} + +.x3dom-logContainer { + border: 2px solid olivedrab; + height: 200px; + padding: 4px; + overflow: auto; + white-space: pre-wrap; + font-family: sans-serif; + font-size: x-small; + color: #00ff00; + background-color: black; + margin-right: 10px; +} + +.x3dom-nox3d { + font-family: Helvetica, sans-serif; + font-size: 14px; + background-color: #eb7a7a; + padding: 1em; + opacity: 0.75; +} + +.x3dom-nox3d p { + color: #fff; + font-size: 14px; +} + +.x3dom-nox3d a { + color: #fff; + font-size: 14px; +} + + +/* self-clearing floats */ +.group:after { + content: "."; + display: block; + height: 0; + clear: both; + visibility: hidden; +} diff --git a/plot/x3dom.css.h b/plot/x3dom.css.h new file mode 100644 index 0000000..d10fb9b --- /dev/null +++ b/plot/x3dom.css.h @@ -0,0 +1,535 @@ + 0x2f, 0x2a, 0x0a, 0x20, 0x2a, 0x20, 0x58, 0x33, 0x44, 0x4f, 0x4d, 0x20, + 0x4a, 0x61, 0x76, 0x61, 0x53, 0x63, 0x72, 0x69, 0x70, 0x74, 0x20, 0x4c, + 0x69, 0x62, 0x72, 0x61, 0x72, 0x79, 0x0a, 0x20, 0x2a, 0x20, 0x68, 0x74, + 0x74, 0x70, 0x3a, 0x2f, 0x2f, 0x77, 0x77, 0x77, 0x2e, 0x78, 0x33, 0x64, + 0x6f, 0x6d, 0x2e, 0x6f, 0x72, 0x67, 0x0a, 0x20, 0x2a, 0x0a, 0x20, 0x2a, + 0x20, 0x28, 0x43, 0x29, 0x32, 0x30, 0x30, 0x39, 0x20, 0x46, 0x72, 0x61, + 0x75, 0x6e, 0x68, 0x6f, 0x66, 0x65, 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"+msg;x3dom.debug.logContainer.insertBefore(node,x3dom.debug.logContainer.firstChild);}catch(err){if(window.console.firebug!==undefined){window.console.warn(msg);}} +if(x3dom.debug.isFirebugAvailable){switch(logType){case x3dom.debug.INFO:window.console.info(msg);break;case x3dom.debug.WARNING:window.console.warn(msg);break;case x3dom.debug.ERROR:window.console.error(msg);break;case x3dom.debug.EXCEPTION:window.console.debug(msg);break;default:break;}} +x3dom.debug.numLinesLogged++;},logInfo:function(msg){x3dom.debug.doLog(msg,x3dom.debug.INFO);},logWarning:function(msg){x3dom.debug.doLog(msg,x3dom.debug.WARNING);},logError:function(msg){x3dom.debug.doLog(msg,x3dom.debug.ERROR);},logException:function(msg){x3dom.debug.doLog(msg,x3dom.debug.EXCEPTION);},assert:function(c,msg){if(!c){x3dom.debug.doLog("Assertion failed in "+ +x3dom.debug.assert.caller.name+': '+ +msg,x3dom.debug.ERROR);}},typeOf:function(obj){var type=typeof obj;return type==="object"&&!obj?"null":type;},exists:function(obj,name,type){type=type||"function";return(obj?this.typeOf(obj[name]):"null")===type;},dumpFields:function(node){var str="";for(var fName in node){str+=(fName+", ");} +str+='\n';x3dom.debug.logInfo(str);return str;}};x3dom.debug.setup();x3dom.arc={};x3dom.arc.instance=null;x3dom.arc.Limits=function(min,max,initial) +{this._min=min;this._max=max;this.getValue=function(value) +{value=this._min+(this._max-this._min)*value;return this._max>=value?(this._min<=value?value:this._min):this._max;};};x3dom.arc.ARF=function(name,min,max,dirFac,factorGetterFunc,factorSetterFunc,getterFunc,setterFunc) +{this._name=name;this._stateValue=[0.5,0.5];this._limits=new x3dom.arc.Limits(min,max);this._factorGetterFunc=factorGetterFunc;this._factorSetterFunc=factorSetterFunc;this._setterFunc=setterFunc;this._getterFunc=getterFunc;this._dirFac=dirFac;this.getFactor=function() +{return this._factorGetterFunc();};this.update=function(state,step) +{var stateVal=this._stateValue[state]+step*this._dirFac;this._stateValue[state]=0<=stateVal?(1>=stateVal?stateVal:1):0;this._setterFunc(this._limits.getValue(this._stateValue[state]));};this.reset=function() +{this._stateValue[0]=0.5;this._stateValue[1]=0.5;};};x3dom.arc.AdaptiveRenderControl=defineClass(null,function(scene) +{x3dom.arc.instance=this;this._scene=scene;this._targetFrameRate=[];this._targetFrameRate[0]=this._scene._vf.minFrameRate;this._targetFrameRate[1]=this._scene._vf.maxFrameRate;this._currentState=0;var that=this;var environment=that._scene.getEnvironment();this._arfs=[];this._arfs.push(new x3dom.arc.ARF("smallFeatureCulling",0,10,-1,function() +{return environment._vf.smallFeatureFactor;},function(value) +{environment._vf.smallFeatureFactor=value;},function() +{return environment._vf.smallFeatureThreshold;},function(value) +{environment._vf.smallFeatureThreshold=value;}));this._arfs.push(new x3dom.arc.ARF("lowPriorityCulling",0,100,1,function() +{return environment._vf.lowPriorityFactor;},function(value) +{environment._vf.lowPriorityFactor=value;},function() +{return environment._vf.lowPriorityThreshold*100;},function(value) +{environment._vf.lowPriorityThreshold=value/100;}));this._arfs.push(new x3dom.arc.ARF("tessellationDetailCulling",1,12,-1,function() +{return environment._vf.tessellationErrorFactor;},function(value) +{environment._vf.tessellationErrorFactor=value;},function() +{return environment.tessellationErrorThreshold;},function(value) +{environment.tessellationErrorThreshold=value;}));this._stepWidth=0.1;},{update:function(state,fps) +{this._currentState=state;var delta=fps-this._targetFrameRate[state];this._stepWidth=Math.abs(delta)>10?0.1:0.01;var factorSum=0;var normFactors=[];var i,n=this._arfs.length;for(i=0;i0) +factorSum+=normFactors[i];} +var dirFac=delta<0?-1:1;for(i=0;i0) +{normFactors[i]/=factorSum;this._arfs[i].update(state,this._stepWidth*normFactors[i]*dirFac);}}},reset:function() +{for(var i=0,n=this._arfs.length;i1) +{var pixels=parts.colorMap.getPixels();for(i=0;i1) +{var diffuseColors=[];for(i=0;i1) +{var pixels=parts.emissiveMap.getPixels();for(i=0;i1) +{var emissiveColors=[];for(i=0;i1) +{var pixels=parts.specularMap.getPixels();for(i=0;i1) +{var specularColors=[];for(i=0;i1) +{var pixels=parts.colorMap.getPixels();for(i=0;i1) +{var transparencies=[];for(i=0;i1) +{var pixels=parts.specularMap.getPixels();for(i=0;i1) +{var shininesses=[];for(i=0;i1) +{var pixels=parts.emissiveMap.getPixels();for(i=0;i1) +{var ambientIntensities=[];for(i=0;i1) +{var dtPixels=parts.colorMap.getPixels();var eaPixels=parts.emissiveMap.getPixels();var ssPixels=parts.specularMap.getPixels();dtColor=new x3dom.fields.SFColorRGBA(0,0,0,1.0);eaColor=new x3dom.fields.SFColorRGBA(color.r,color.g,color.b,0);ssColor=new x3dom.fields.SFColorRGBA(0,0,0,0);for(i=0;i1) +{var dtPixels=parts.colorMap.getPixels();var eaPixels=parts.emissiveMap.getPixels();var ssPixels=parts.specularMap.getPixels();for(i=0;i1) +{var dtPixels=parts.colorMap.getPixels();var eaPixels=parts.emissiveMap.getPixels();var ssPixels=parts.specularMap.getPixels();for(i=0;i1)){x=parts.ids[0]%parts.colorMap.getWidth();y=Math.floor(parts.ids[0]/parts.colorMap.getWidth());var pixel=parts.visibilityMap.getPixel(x,y);visibilityAsInt=(visibility)?1:0;if(pixel.r!=visibilityAsInt){pixel.r=visibilityAsInt;this.multiPart._partVisibility[parts.ids[0]]=visibility;usage=this.multiPart._idMap.mapping[parts.ids[0]].usage;for(j=0;j0){visibleCount.val--;} +if(visibleCount.val){this.multiPart._inlineNamespace.defMap[usage[j]]._vf.render=true;}else{this.multiPart._inlineNamespace.defMap[usage[j]]._vf.render=false;}}} +parts.visibilityMap.setPixel(x,y,pixel);this.multiPart.invalidateVolume();} +else +{var pixels=parts.visibilityMap.getPixels();for(i=0;i0){visibleCount.val--;} +if(visibleCount.val){this.multiPart._inlineNamespace.defMap[usage[j]]._vf.render=true;}else{this.multiPart._inlineNamespace.defMap[usage[j]]._vf.render=false;}}}} +parts.visibilityMap.setPixels(pixels);this.multiPart.invalidateVolume();}};this.getVolume=function(){var volume;var transmat=this.multiPart.getCurrentTransform();if(ids.length&&ids.length>1) +{volume=new x3dom.fields.BoxVolume();for(var i=0;i1){node.prev.next=node.next;node.next.prev=node.prev;if(node==this.first){this.first=node.next;} +if(node==this.last){this.last=node.prev;}}else{this.first=null;this.last=null;} +node.prev=null;node.next=null;this.length--;};x3dom.DoublyLinkedList.prototype.getNode=function(index){var node=null;if(index>this.length){return node;} +for(var i=0;i=3&&count<15){next=node.next;for(var i=0;i=3&&count<15){next=node.next;for(var i=0;i0)&&(b2>0)&&(b3>0));} +else{return false;}},isKonvex:function(p,p1,p2,plane){var pa,pb,p1a,p1b,p2a,p2b;if(plane=='YZ'){pa=p.y;pb=p.z;p1a=p1.y;p1b=p1.z;p2a=p2.y;p2b=p2.z;}else if(plane=='XZ'){pa=p.z;pb=p.x;p1a=p1.z;p1b=p1.x;p2a=p2.z;p2b=p2.x;}else{pa=p.x;pb=p.y;p1a=p1.x;p1b=p1.y;p2a=p2.x;p2b=p2.y;} +var l=((p1a-pa)*(p2b-pb)-(p1b-pb)*(p2a-pa));return(l>=0);},identifyPlane:function(p1,p2,p3){var v1x,v1y,v1z;var v2x,v2y,v2z;var v3x,v3y,v3z;v1x=p2.x-p1.x;v1y=p2.y-p1.y;v1z=p2.z-p1.z;v2x=p3.x-p1.x;v2y=p3.y-p1.y;v2z=p3.z-p1.z;v3x=Math.abs(v1y*v2z-v1z*v2y);v3y=Math.abs(v1z*v2x-v1x*v2z);v3z=Math.abs(v1x*v2y-v1y*v2x);var angle=Math.max(v3x,v3y,v3z);if(angle==v3x){return'YZ';}else if(angle==v3y){return'XZ';}else if(angle==v3z){return'XY';}else{return'XZ';}}};x3dom.Utils={};x3dom.Utils.maxIndexableCoords=65535;x3dom.Utils.needLineWidth=false;x3dom.Utils.measurements=[];window.performance=window.performance||{};performance.now=(function(){return performance.now||performance.mozNow||performance.msNow||performance.oNow||performance.webkitNow||function(){return new Date().getTime();};})();x3dom.Utils.startMeasure=function(name){var uname=name.toUpperCase();if(!x3dom.Utils.measurements[uname]){if(performance&&performance.now){x3dom.Utils.measurements[uname]=performance.now();}else{x3dom.Utils.measurements[uname]=new Date().getTime();}}};x3dom.Utils.stopMeasure=function(name){var uname=name.toUpperCase();if(x3dom.Utils.measurements[uname]){var startTime=x3dom.Utils.measurements[uname];delete x3dom.Utils.measurements[uname];if(performance&&performance.now){return performance.now()-startTime;}else{return new Date().getTime()-startTime;}} +return 0;};x3dom.Utils.isNumber=function(n){return!isNaN(parseFloat(n))&&isFinite(n);};x3dom.Utils.createTexture2D=function(gl,doc,src,bgnd,crossOrigin,scale,genMipMaps) +{var texture=gl.createTexture();var data=new Uint8Array([0,0,0,255,0,0,0,255,0,0,0,255,0,0,0,255]);gl.bindTexture(gl.TEXTURE_2D,texture);gl.texImage2D(gl.TEXTURE_2D,0,gl.RGBA,2,2,0,gl.RGBA,gl.UNSIGNED_BYTE,data);if(genMipMaps){gl.generateMipmap(gl.TEXTURE_2D);} +gl.bindTexture(gl.TEXTURE_2D,null);texture.ready=false;if(src==null||src=='') +return texture;var image=new Image();switch(crossOrigin.toLowerCase()){case'anonymous':{image.crossOrigin='anonymous';}break;case'use-credentials':{image.crossOrigin='use-credentials'}break;case'none':{}break;default:{if(x3dom.Utils.forbiddenBySOP(src)){image.crossOrigin='anonymous';}}} +image.src=src;doc.downloadCount++;image.onload=function(){if(scale) +image=x3dom.Utils.scaleImage(image);if(bgnd==true){gl.pixelStorei(gl.UNPACK_FLIP_Y_WEBGL,true);} +gl.bindTexture(gl.TEXTURE_2D,texture);gl.texImage2D(gl.TEXTURE_2D,0,gl.RGBA,gl.RGBA,gl.UNSIGNED_BYTE,image);if(genMipMaps){gl.generateMipmap(gl.TEXTURE_2D);} +gl.bindTexture(gl.TEXTURE_2D,null);if(bgnd==true){gl.pixelStorei(gl.UNPACK_FLIP_Y_WEBGL,false);} +texture.width=image.width;texture.height=image.height;texture.ready=true;doc.downloadCount--;doc.needRender=true;};image.onerror=function(){x3dom.debug.logError("[Utils|createTexture2D] Can't load Image: "+src);doc.downloadCount--;};return texture;};x3dom.Utils.createTextureCube=function(gl,doc,src,bgnd,crossOrigin,scale,genMipMaps) +{var texture=gl.createTexture();var faces;if(bgnd){faces=[gl.TEXTURE_CUBE_MAP_POSITIVE_Z,gl.TEXTURE_CUBE_MAP_NEGATIVE_Z,gl.TEXTURE_CUBE_MAP_POSITIVE_Y,gl.TEXTURE_CUBE_MAP_NEGATIVE_Y,gl.TEXTURE_CUBE_MAP_POSITIVE_X,gl.TEXTURE_CUBE_MAP_NEGATIVE_X];} +else +{faces=[gl.TEXTURE_CUBE_MAP_NEGATIVE_Z,gl.TEXTURE_CUBE_MAP_POSITIVE_Z,gl.TEXTURE_CUBE_MAP_NEGATIVE_Y,gl.TEXTURE_CUBE_MAP_POSITIVE_Y,gl.TEXTURE_CUBE_MAP_NEGATIVE_X,gl.TEXTURE_CUBE_MAP_POSITIVE_X];} +texture.ready=false;texture.pendingTextureLoads=-1;texture.textureCubeReady=false;var width=0,height=0;for(var i=0;i-1){filename=url.substr(url.lastIndexOf("/")+1);} +else if(url.lastIndexOf("\\")>-1){filename=url.substr(url.lastIndexOf("\\")+1);} +else{filename=url;} +return filename;};x3dom.Utils.findTextureByName=function(texture,name) +{for(var i=0;i>i;} +return(x+1);};x3dom.Utils.nextBestPowerOfTwo=function(x) +{var log2x=Math.log(x)/0.693147180559945;return Math.pow(2,Math.round(log2x));};x3dom.Utils.getDataTypeSize=function(type) +{switch(type) +{case"Int8":case"Uint8":return 1;case"Int16":case"Uint16":return 2;case"Int32":case"Uint32":case"Float32":return 4;case"Float64":default:return 8;}};x3dom.Utils.getOffsetMultiplier=function(indexType,gl) +{switch(indexType) +{case gl.UNSIGNED_SHORT:return 1;case gl.UNSIGNED_INT:return 2;case gl.UNSIGNED_BYTE:return 0.5;default:return 1;}};x3dom.Utils.getByteAwareOffset=function(offset,indexType,gl) +{switch(indexType) +{case gl.UNSIGNED_SHORT:return 2*offset;case gl.UNSIGNED_INT:return 4*offset;case gl.UNSIGNED_BYTE:return offset;default:return 2*offset;}};x3dom.Utils.getVertexAttribType=function(type,gl) +{var dataType=gl.NONE;switch(type) +{case"Int8":dataType=gl.BYTE;break;case"Uint8":dataType=gl.UNSIGNED_BYTE;break;case"Int16":dataType=gl.SHORT;break;case"Uint16":dataType=gl.UNSIGNED_SHORT;break;case"Int32":dataType=gl.INT;break;case"Uint32":dataType=gl.UNSIGNED_INT;break;case"Float32":dataType=gl.FLOAT;break;case"Float64":default:x3dom.debug.logError("Can't find this.gl data type for "+type+", getting FLOAT...");dataType=gl.FLOAT;break;} +return dataType;};x3dom.Utils.getArrayBufferView=function(type,buffer) +{var array=null;switch(type) +{case"Int8":array=new Int8Array(buffer);break;case"Uint8":array=new Uint8Array(buffer);break;case"Int16":array=new Int16Array(buffer);break;case"Uint16":array=new Uint16Array(buffer);break;case"Int32":array=new Int32Array(buffer);break;case"Uint32":array=new Uint32Array(buffer);break;case"Float32":array=new Float32Array(buffer);break;case"Float64":array=new Float64Array(buffer);break;default:x3dom.debug.logError("Can't create typed array view of type "+type+", trying Float32...");array=new Float32Array(buffer);break;} +return array;};x3dom.Utils.isUnsignedType=function(str) +{return(str=="Uint8"||str=="Uint16"||str=="Uint16"||str=="Uint32");};x3dom.Utils.checkDirtyLighting=function(viewarea) +{return(viewarea.getLights().length+viewarea._scene.getNavigationInfo()._vf.headlight);};x3dom.Utils.checkDirtyEnvironment=function(viewarea,shaderProperties) +{var environment=viewarea._scene.getEnvironment();return(shaderProperties.GAMMACORRECTION!=environment._vf.gammaCorrectionDefault);};x3dom.Utils.minFilterDic=function(gl,minFilter) +{switch(minFilter.toUpperCase()) +{case"NEAREST":return gl.NEAREST;case"LINEAR":return gl.LINEAR;case"NEAREST_MIPMAP_NEAREST":return gl.NEAREST_MIPMAP_NEAREST;case"NEAREST_MIPMAP_LINEAR":return gl.NEAREST_MIPMAP_LINEAR;case"LINEAR_MIPMAP_NEAREST":return gl.LINEAR_MIPMAP_NEAREST;case"LINEAR_MIPMAP_LINEAR":return gl.LINEAR_MIPMAP_LINEAR;case"AVG_PIXEL":return gl.LINEAR;case"AVG_PIXEL_AVG_MIPMAP":return gl.LINEAR_MIPMAP_LINEAR;case"AVG_PIXEL_NEAREST_MIPMAP":return gl.LINEAR_MIPMAP_NEAREST;case"DEFAULT":return gl.LINEAR_MIPMAP_LINEAR;case"FASTEST":return gl.NEAREST;case"NEAREST_PIXEL":return gl.NEAREST;case"NEAREST_PIXEL_AVG_MIPMAP":return gl.NEAREST_MIPMAP_LINEAR;case"NEAREST_PIXEL_NEAREST_MIPMAP":return gl.NEAREST_MIPMAP_NEAREST;case"NICEST":return gl.LINEAR_MIPMAP_LINEAR;default:return gl.LINEAR;}};x3dom.Utils.magFilterDic=function(gl,magFilter) +{switch(magFilter.toUpperCase()) +{case"NEAREST":return gl.NEAREST;case"LINEAR":return gl.LINEAR;case"AVG_PIXEL":return gl.LINEAR;case"DEFAULT":return gl.LINEAR;case"FASTEST":return gl.NEAREST;case"NEAREST_PIXEL":return gl.NEAREST;case"NICEST":return gl.LINEAR;default:return gl.LINEAR;}};x3dom.Utils.boundaryModesDic=function(gl,mode) +{switch(mode.toUpperCase()) +{case"CLAMP":return gl.CLAMP_TO_EDGE;case"CLAMP_TO_EDGE":return gl.CLAMP_TO_EDGE;case"CLAMP_TO_BOUNDARY":return gl.CLAMP_TO_EDGE;case"MIRRORED_REPEAT":return gl.MIRRORED_REPEAT;case"REPEAT":return gl.REPEAT;default:return gl.REPEAT;}};x3dom.Utils.primTypeDic=function(gl,type) +{switch(type.toUpperCase()) +{case"POINTS":return gl.POINTS;case"LINES":return gl.LINES;case"LINELOOP":return gl.LINE_LOOP;case"LINESTRIP":return gl.LINE_STRIP;case"TRIANGLES":return gl.TRIANGLES;case"TRIANGLESTRIP":return gl.TRIANGLE_STRIP;case"TRIANGLEFAN":return gl.TRIANGLE_FAN;default:return gl.TRIANGLES;}};x3dom.Utils.depthFunc=function(gl,func) +{switch(func.toUpperCase()) +{case"NEVER":return gl.NEVER;case"ALWAYS":return gl.ALWAYS;case"LESS":return gl.LESS;case"EQUAL":return gl.EQUAL;case"LEQUAL":return gl.LEQUAL;case"GREATER":return gl.GREATER;case"GEQUAL":return gl.GEQUAL;case"NOTEQUAL":return gl.NOTEQUAL;default:return gl.LEQUAL;}};x3dom.Utils.blendFunc=function(gl,func) +{switch(func.toLowerCase()) +{case"zero":return gl.ZERO;case"one":return gl.ONE;case"dst_color":return gl.DST_COLOR;case"dst_alpha":return gl.DST_ALPHA;case"src_color":return gl.SRC_COLOR;case"src_alpha":return gl.SRC_ALPHA;case"one_minus_dst_color":return gl.ONE_MINUS_DST_COLOR;case"one_minus_dst_alpha":return gl.ONE_MINUS_DST_ALPHA;case"one_minus_src_color":return gl.ONE_MINUS_SRC_COLOR;case"one_minus_src_alpha":return gl.ONE_MINUS_SRC_ALPHA;case"src_alpha_saturate":return gl.SRC_ALPHA_SATURATE;case"constant_color":return gl.CONSTANT_COLOR;case"constant_alpha":return gl.CONSTANT_ALPHA;case"one_minus_constant_color":return gl.ONE_MINUS_CONSTANT_COLOR;case"one_minus_constant_alpha":return gl.ONE_MINUS_CONSTANT_ALPHA;default:return 0;}};x3dom.Utils.blendEquation=function(gl,func) +{switch(func.toLowerCase()) +{case"func_add":return gl.FUNC_ADD;case"func_subtract":return gl.FUNC_SUBTRACT;case"func_reverse_subtract":return gl.FUNC_REVERSE_SUBTRACT;case"min":return 0;case"max":return 0;case"logic_op":return 0;default:return 0;}};x3dom.Utils.gunzip=function(arraybuffer) +{var byteArray=new Uint8Array(arraybuffer);try{arraybuffer=new Zlib.Gunzip(byteArray).decompress().buffer;}catch(e){} +return arraybuffer;};x3dom.Utils.generateProperties=function(viewarea,shape) +{var property={};var geometry=shape._cf.geometry.node;var appearance=shape._cf.appearance.node;var texture=appearance?appearance._cf.texture.node:null;var material=appearance?appearance._cf.material.node:null;var environment=viewarea._scene.getEnvironment();if(appearance&&appearance._shader&&x3dom.isa(appearance._shader,x3dom.nodeTypes.ComposedShader)){property.CSHADER=appearance._shader._id;} +else if(geometry){property.CSHADER=-1;property.SOLID=(shape.isSolid())?1:0;property.TEXT=(x3dom.isa(geometry,x3dom.nodeTypes.Text))?1:0;property.POPGEOMETRY=(x3dom.isa(geometry,x3dom.nodeTypes.PopGeometry))?1:0;property.IMAGEGEOMETRY=(x3dom.isa(geometry,x3dom.nodeTypes.ImageGeometry))?1:0;property.BINARYGEOMETRY=(x3dom.isa(geometry,x3dom.nodeTypes.BinaryGeometry))?1:0;property.IG_PRECISION=(property.IMAGEGEOMETRY)?geometry.numCoordinateTextures():0;property.IG_INDEXED=(property.IMAGEGEOMETRY&&geometry.getIndexTexture()!=null)?1:0;property.POINTLINE2D=!geometry.needLighting()?1:0;property.VERTEXID=(property.BINARYGEOMETRY&&geometry._vf.idsPerVertex)?1:0;property.IS_PARTICLE=(x3dom.isa(geometry,x3dom.nodeTypes.ParticleSet))?1:0;property.APPMAT=(appearance&&(material||property.CSSHADER))?1:0;property.TWOSIDEDMAT=(property.APPMAT&&x3dom.isa(material,x3dom.nodeTypes.TwoSidedMaterial))?1:0;property.SEPARATEBACKMAT=(property.TWOSIDEDMAT&&material._vf.separateBackColor)?1:0;property.SHADOW=(viewarea.getLightsShadow())?1:0;property.FOG=(viewarea._scene.getFog()._vf.visibilityRange>0)?1:0;property.CSSHADER=(appearance&&appearance._shader&&x3dom.isa(appearance._shader,x3dom.nodeTypes.CommonSurfaceShader))?1:0;property.LIGHTS=(!property.POINTLINE2D&&appearance&&shape.isLit()&&(material||property.CSSHADER))?viewarea.getLights().length+(viewarea._scene.getNavigationInfo()._vf.headlight):0;property.TEXTURED=(texture||property.TEXT)?1:0;property.PIXELTEX=(texture&&x3dom.isa(texture,x3dom.nodeTypes.PixelTexture))?1:0;property.TEXTRAFO=(appearance&&appearance._cf.textureTransform.node)?1:0;property.DIFFUSEMAP=(property.CSSHADER&&appearance._shader.getDiffuseMap())?1:0;property.NORMALMAP=(property.CSSHADER&&appearance._shader.getNormalMap())?1:0;property.SPECMAP=(property.CSSHADER&&appearance._shader.getSpecularMap())?1:0;property.SHINMAP=(property.CSSHADER&&appearance._shader.getShininessMap())?1:0;property.DISPLACEMENTMAP=(property.CSSHADER&&appearance._shader.getDisplacementMap())?1:0;property.DIFFPLACEMENTMAP=(property.CSSHADER&&appearance._shader.getDiffuseDisplacementMap())?1:0;property.MULTIDIFFALPMAP=(property.VERTEXID&&property.CSSHADER&&appearance._shader.getMultiDiffuseAlphaMap())?1:0;property.MULTIEMIAMBMAP=(property.VERTEXID&&property.CSSHADER&&appearance._shader.getMultiEmissiveAmbientMap())?1:0;property.MULTISPECSHINMAP=(property.VERTEXID&&property.CSSHADER&&appearance._shader.getMultiSpecularShininessMap())?1:0;property.MULTIVISMAP=(property.VERTEXID&&property.CSSHADER&&appearance._shader.getMultiVisibilityMap())?1:0;property.CUBEMAP=(texture&&x3dom.isa(texture,x3dom.nodeTypes.X3DEnvironmentTextureNode))?1:0;property.BLENDING=(property.TEXT||property.CUBEMAP||(texture&&texture._blending))?1:0;property.REQUIREBBOX=(geometry._vf.coordType!==undefined&&geometry._vf.coordType!="Float32")?1:0;property.REQUIREBBOXNOR=(geometry._vf.normalType!==undefined&&geometry._vf.normalType!="Float32")?1:0;property.REQUIREBBOXCOL=(geometry._vf.colorType!==undefined&&geometry._vf.colorType!="Float32")?1:0;property.REQUIREBBOXTEX=(geometry._vf.texCoordType!==undefined&&geometry._vf.texCoordType!="Float32")?1:0;property.COLCOMPONENTS=geometry._mesh._numColComponents;property.NORCOMPONENTS=geometry._mesh._numNormComponents;property.POSCOMPONENTS=geometry._mesh._numPosComponents;property.SPHEREMAPPING=(geometry._cf.texCoord!==undefined&&geometry._cf.texCoord.node!==null&&geometry._cf.texCoord.node._vf.mode&&geometry._cf.texCoord.node._vf.mode.toLowerCase()=="sphere")?1:0;property.VERTEXCOLOR=(geometry._mesh._colors[0].length>0||(property.IMAGEGEOMETRY&&geometry.getColorTexture())||(property.POPGEOMETRY&&geometry.hasColor())||(geometry._vf.color!==undefined&&geometry._vf.color.length>0))?1:0;property.CLIPPLANES=shape._clipPlanes.length;property.ALPHATHRESHOLD=(appearance)?appearance._vf.alphaClipThreshold.toFixed(2):0.1;property.GAMMACORRECTION=environment._vf.gammaCorrectionDefault;} +property.toIdentifier=function(){var id="";for(var p in this){if(this[p]!=this.toIdentifier&&this[p]!=this.toString){id+=this[p];}} +this.id=id;return id;};property.toString=function(){var str="";for(var p in this){if(this[p]!=this.toIdentifier&&this[p]!=this.toString){str+=p+": "+this[p]+", ";}} +return str;};property.toIdentifier();return property;};x3dom.Utils.wrapProgram=function(gl,program,shaderID) +{var shader={shaderID:shaderID,program:program};shader.bind=function(){gl.useProgram(program);};var loc=null;var obj=null;var i,glErr;var numUniforms=gl.getProgramParameter(program,gl.ACTIVE_UNIFORMS);for(i=0;izFar) +{return;} +zNear=(zNear>1)?1:zNear;zFar=(zFar>1)?1:zFar;if(this.states['depthRange'].zNear!=zNear||this.states['depthRange'].zFar!=zFar) +{this.gl.depthRange(zNear,zFar);this.states['depthRange'].zNear=zNear;this.states['depthRange'].zFar=zFar;}};x3dom.StateManager.prototype.viewport=function(x,y,width,height) +{if(this.states['viewport'].x!=x||this.states['viewport'].y!=y||this.states['viewport'].width!=width||this.states['viewport'].height!=height) +{this.gl.viewport(x,y,width,height);this.states['viewport'].x=x;this.states['viewport'].y=y;this.states['viewport'].width=width;this.states['viewport'].height=height;}};x3dom.StateManager.prototype.bindFramebuffer=function(target,framebuffer) +{this.gl.bindFramebuffer(target,framebuffer);this.initStates();};x3dom.BinaryContainerLoader={outOfMemory:false,checkError:function(gl){var glErr=gl.getError();if(glErr){if(glErr==gl.OUT_OF_MEMORY){this.outOfMemory=true;x3dom.debug.logError("GL-Error "+glErr+" on loading binary container (out of memory).");console.error("WebGL: OUT_OF_MEMORY");} +else{x3dom.debug.logError("GL-Error "+glErr+" on loading binary container.");}}}};x3dom.BinaryContainerLoader.setupBinGeo=function(shape,sp,gl,viewarea,currContext) +{if(this.outOfMemory){return;} +var t00=new Date().getTime();var that=this;var binGeo=shape._cf.geometry.node;shape._webgl.binaryGeometry=-1;shape._webgl.internalDownloadCount=((binGeo._vf.index.length>0)?1:0)+ +((binGeo._hasStrideOffset&&binGeo._vf.coord.length>0)?1:0)+ +((!binGeo._hasStrideOffset&&binGeo._vf.coord.length>0)?1:0)+ +((!binGeo._hasStrideOffset&&binGeo._vf.normal.length>0)?1:0)+ +((!binGeo._hasStrideOffset&&binGeo._vf.texCoord.length>0)?1:0)+ +((!binGeo._hasStrideOffset&&binGeo._vf.color.length>0)?1:0);var createTriangleSoup=(binGeo._vf.normalPerVertex==false)||((binGeo._vf.index.length>0)&&(binGeo._vf.indexType=="Int32"||(binGeo._vf.indexType=="Uint32"&&!x3dom.caps.INDEX_UINT)));shape._webgl.makeSeparateTris={index:null,coord:null,normal:null,texCoord:null,color:null,pushBuffer:function(name,buf){this[name]=buf;if(--shape._webgl.internalDownloadCount==0){if(this.coord) +this.createMesh();shape._nameSpace.doc.needRender=true;} +if(--shape._nameSpace.doc.downloadCount==0) +shape._nameSpace.doc.needRender=true;},createMesh:function(){var geoNode=binGeo;if(geoNode._hasStrideOffset){x3dom.debug.logError(geoNode._vf.indexType+" index type and per-face normals not supported for interleaved arrays.");return;} +for(var k=0;k3)posBuf.push(this.coord[j+3]);if(this.color){colBuf.push(this.color[j]);colBuf.push(this.color[j+1]);colBuf.push(this.color[j+2]);if(dataLen>3)colBuf.push(this.color[j+3]);} +if(this.texCoord){l=texDataLen*(this.index?this.index[i]:i);texcBuf.push(this.texCoord[l]);texcBuf.push(this.texCoord[l+1]);if(texDataLen>3){texcBuf.push(this.texCoord[l+2]);texcBuf.push(this.texCoord[l+3]);}} +j=dataLen*(this.index?this.index[i+1]:i+1);var p1=new x3dom.fields.SFVec3f(bgSize.x*this.coord[j]/bgPrecisionMax,bgSize.y*this.coord[j+1]/bgPrecisionMax,bgSize.z*this.coord[j+2]/bgPrecisionMax);posBuf.push(this.coord[j]);posBuf.push(this.coord[j+1]);posBuf.push(this.coord[j+2]);if(dataLen>3)posBuf.push(this.coord[j+3]);if(this.color){colBuf.push(this.color[j]);colBuf.push(this.color[j+1]);colBuf.push(this.color[j+2]);if(dataLen>3)colBuf.push(this.color[j+3]);} +if(this.texCoord){l=texDataLen*(this.index?this.index[i+1]:i+1);texcBuf.push(this.texCoord[l]);texcBuf.push(this.texCoord[l+1]);if(texDataLen>3){texcBuf.push(this.texCoord[l+2]);texcBuf.push(this.texCoord[l+3]);}} +j=dataLen*(this.index?this.index[i+2]:i+2);var p2=new x3dom.fields.SFVec3f(bgSize.x*this.coord[j]/bgPrecisionMax,bgSize.y*this.coord[j+1]/bgPrecisionMax,bgSize.z*this.coord[j+2]/bgPrecisionMax);posBuf.push(this.coord[j]);posBuf.push(this.coord[j+1]);posBuf.push(this.coord[j+2]);if(dataLen>3)posBuf.push(this.coord[j+3]);if(this.color){colBuf.push(this.color[j]);colBuf.push(this.color[j+1]);colBuf.push(this.color[j+2]);if(dataLen>3)colBuf.push(this.color[j+3]);} +if(this.texCoord){l=texDataLen*(this.index?this.index[i+2]:i+2);texcBuf.push(this.texCoord[l]);texcBuf.push(this.texCoord[l+1]);if(texDataLen>3){texcBuf.push(this.texCoord[l+2]);texcBuf.push(this.texCoord[l+3]);}} +var a=p0.subtract(p1);var b=p1.subtract(p2);var norm=a.cross(b).normalize();for(j=0;j<3;j++){normBuf.push(norm.x);normBuf.push(norm.y);normBuf.push(norm.z);}} +var buffer=gl.createBuffer();shape._webgl.buffers[1]=buffer;gl.bindBuffer(gl.ARRAY_BUFFER,buffer);gl.bufferData(gl.ARRAY_BUFFER,x3dom.Utils.getArrayBufferView(geoNode._vf.coordType,posBuf),gl.STATIC_DRAW);gl.vertexAttribPointer(sp.position,geoNode._mesh._numPosComponents,shape._webgl.coordType,false,shape._coordStrideOffset[0],shape._coordStrideOffset[1]);gl.enableVertexAttribArray(sp.position);buffer=gl.createBuffer();shape._webgl.buffers[2]=buffer;gl.bindBuffer(gl.ARRAY_BUFFER,buffer);gl.bufferData(gl.ARRAY_BUFFER,new Float32Array(normBuf),gl.STATIC_DRAW);gl.vertexAttribPointer(sp.normal,geoNode._mesh._numNormComponents,shape._webgl.normalType,false,shape._normalStrideOffset[0],shape._normalStrideOffset[1]);gl.enableVertexAttribArray(sp.normal);if(this.texCoord) +{buffer=gl.createBuffer();shape._webgl.buffers[3]=buffer;gl.bindBuffer(gl.ARRAY_BUFFER,buffer);gl.bufferData(gl.ARRAY_BUFFER,x3dom.Utils.getArrayBufferView(geoNode._vf.texCoordType,texcBuf),gl.STATIC_DRAW);gl.vertexAttribPointer(sp.texcoord,geoNode._mesh._numTexComponents,shape._webgl.texCoordType,false,shape._texCoordStrideOffset[0],shape._texCoordStrideOffset[1]);gl.enableVertexAttribArray(sp.texcoord);} +if(this.color) +{buffer=gl.createBuffer();shape._webgl.buffers[4]=buffer;gl.bindBuffer(gl.ARRAY_BUFFER,buffer);gl.bufferData(gl.ARRAY_BUFFER,x3dom.Utils.getArrayBufferView(geoNode._vf.colorType,colBuf),gl.STATIC_DRAW);gl.vertexAttribPointer(sp.color,geoNode._mesh._numColComponents,shape._webgl.colorType,false,shape._colorStrideOffset[0],shape._colorStrideOffset[1]);gl.enableVertexAttribArray(sp.color);} +geoNode._vf.vertexCount=[];geoNode._vf.vertexCount[0]=posBuf.length/dataLen;geoNode._mesh._numCoords=geoNode._vf.vertexCount[0];geoNode._mesh._numFaces=geoNode._vf.vertexCount[0]/3;shape._webgl.primType=[];shape._webgl.primType[0]=gl.TRIANGLES;posBuf=null;normBuf=null;texcBuf=null;colBuf=null;this.index=null;this.coord=null;this.normal=null;this.texCoord=null;this.color=null;that.checkError(gl);delete shape._webgl.shader;shape._webgl.shader=currContext.cache.getDynamicShader(gl,viewarea,shape);}};if(binGeo._vf.index.length>0) +{var xmlhttp0=new XMLHttpRequest();xmlhttp0.open("GET",shape._nameSpace.getURL(binGeo._vf.index),true);xmlhttp0.responseType="arraybuffer";shape._nameSpace.doc.downloadCount+=1;xmlhttp0.send(null);xmlhttp0.onload=function() +{if(!shape._webgl) +return;var XHR_buffer=binGeo._vf.compressed==true?x3dom.Utils.gunzip(xmlhttp0.response):xmlhttp0.response;var geoNode=binGeo;var attribTypeStr=geoNode._vf.indexType;var indexArray=x3dom.Utils.getArrayBufferView(attribTypeStr,XHR_buffer);if(createTriangleSoup){shape._webgl.makeSeparateTris.pushBuffer("index",indexArray);return;} +var indicesBuffer=gl.createBuffer();shape._webgl.buffers[0]=indicesBuffer;if(x3dom.caps.INDEX_UINT&&attribTypeStr=="Uint32"){shape._webgl.indexType=gl.UNSIGNED_INT;} +else{shape._webgl.indexType=gl.UNSIGNED_SHORT;} +gl.bindBuffer(gl.ELEMENT_ARRAY_BUFFER,indicesBuffer);gl.bufferData(gl.ELEMENT_ARRAY_BUFFER,indexArray,gl.STATIC_DRAW);shape._webgl.binaryGeometry=1;if(geoNode._vf.vertexCount[0]==0) +geoNode._vf.vertexCount[0]=indexArray.length;geoNode._mesh._numFaces=0;for(var i=0;i0) +{var xmlhttp=new XMLHttpRequest();xmlhttp.open("GET",shape._nameSpace.getURL(binGeo._vf.coord),true);xmlhttp.responseType="arraybuffer";shape._nameSpace.doc.downloadCount+=1;xmlhttp.send(null);xmlhttp.onload=function() +{if(!shape._webgl) +return;var XHR_buffer=binGeo._vf.compressed==true?x3dom.Utils.gunzip(xmlhttp.response):xmlhttp.response;var geoNode=binGeo;var attribTypeStr=geoNode._vf.coordType;shape._webgl.coordType=x3dom.Utils.getVertexAttribType(attribTypeStr,gl);shape._webgl.normalType=shape._webgl.coordType;shape._webgl.texCoordType=shape._webgl.coordType;shape._webgl.colorType=shape._webgl.coordType;var attributes=x3dom.Utils.getArrayBufferView(attribTypeStr,XHR_buffer);var dataLen=shape._coordStrideOffset[0]/x3dom.Utils.getDataTypeSize(attribTypeStr);if(dataLen) +geoNode._mesh._numCoords=attributes.length/dataLen;if(geoNode._vf.index.length==0){for(var i=0;i0) +{shape._webgl.buffers[2]=buffer;gl.bindBuffer(gl.ARRAY_BUFFER,buffer);gl.bufferData(gl.ARRAY_BUFFER,attributes,gl.STATIC_DRAW);gl.vertexAttribPointer(sp.normal,geoNode._mesh._numNormComponents,shape._webgl.normalType,false,shape._normalStrideOffset[0],shape._normalStrideOffset[1]);gl.enableVertexAttribArray(sp.normal);} +if(geoNode._vf.texCoord.length>0) +{console.log("YUPPIE");shape._webgl.buffers[3]=buffer;gl.bindBuffer(gl.ARRAY_BUFFER,buffer);gl.bufferData(gl.ARRAY_BUFFER,attributes,gl.STATIC_DRAW);gl.vertexAttribPointer(sp.texcoord,geoNode._mesh._numTexComponents,shape._webgl.texCoordType,false,shape._texCoordStrideOffset[0],shape._texCoordStrideOffset[1]);gl.enableVertexAttribArray(sp.texcoord);} +if(geoNode._vf.color.length>0) +{shape._webgl.buffers[4]=buffer;gl.bindBuffer(gl.ARRAY_BUFFER,buffer);gl.bufferData(gl.ARRAY_BUFFER,attributes,gl.STATIC_DRAW);gl.vertexAttribPointer(sp.color,geoNode._mesh._numColComponents,shape._webgl.colorType,false,shape._colorStrideOffset[0],shape._colorStrideOffset[1]);gl.enableVertexAttribArray(sp.color);} +attributes=null;shape._nameSpace.doc.downloadCount-=1;shape._webgl.internalDownloadCount-=1;if(shape._webgl.internalDownloadCount==0) +shape._nameSpace.doc.needRender=true;that.checkError(gl);var t11=new Date().getTime()-t00;x3dom.debug.logInfo("XHR/ interleaved array load time: "+t11+" ms");};} +if(!binGeo._hasStrideOffset&&binGeo._vf.coord.length>0) +{var xmlhttp1=new XMLHttpRequest();xmlhttp1.open("GET",shape._nameSpace.getURL(binGeo._vf.coord),true);xmlhttp1.responseType="arraybuffer";shape._nameSpace.doc.downloadCount+=1;xmlhttp1.send(null);xmlhttp1.onload=function() +{if(!shape._webgl) +return;var XHR_buffer=binGeo._vf.compressed==true?x3dom.Utils.gunzip(xmlhttp1.response):xmlhttp1.response;var geoNode=binGeo;var i=0;var attribTypeStr=geoNode._vf.coordType;shape._webgl.coordType=x3dom.Utils.getVertexAttribType(attribTypeStr,gl);var vertices=x3dom.Utils.getArrayBufferView(attribTypeStr,XHR_buffer);if(createTriangleSoup){shape._webgl.makeSeparateTris.pushBuffer("coord",vertices);return;} +gl.bindAttribLocation(sp.program,0,"position");var positionBuffer=gl.createBuffer();shape._webgl.buffers[1]=positionBuffer;gl.bindBuffer(gl.ARRAY_BUFFER,positionBuffer);gl.bufferData(gl.ARRAY_BUFFER,vertices,gl.STATIC_DRAW);gl.bindBuffer(gl.ARRAY_BUFFER,positionBuffer);gl.vertexAttribPointer(sp.position,geoNode._mesh._numPosComponents,shape._webgl.coordType,false,shape._coordStrideOffset[0],shape._coordStrideOffset[1]);gl.enableVertexAttribArray(sp.position);geoNode._mesh._numCoords=vertices.length/geoNode._mesh._numPosComponents;if(geoNode._vf.index.length==0){for(i=0;ivertices[i+0]){min.x=vertices[i+0];} +if(min.y>vertices[i+1]){min.y=vertices[i+1];} +if(min.z>vertices[i+2]){min.z=vertices[i+2];} +if(max.x0) +{var xmlhttp2=new XMLHttpRequest();xmlhttp2.open("GET",shape._nameSpace.getURL(binGeo._vf.normal),true);xmlhttp2.responseType="arraybuffer";shape._nameSpace.doc.downloadCount+=1;xmlhttp2.send(null);xmlhttp2.onload=function() +{if(!shape._webgl) +return;var XHR_buffer=binGeo._vf.compressed==true?x3dom.Utils.gunzip(xmlhttp2.response):xmlhttp2.response;var attribTypeStr=binGeo._vf.normalType;shape._webgl.normalType=x3dom.Utils.getVertexAttribType(attribTypeStr,gl);var normals=x3dom.Utils.getArrayBufferView(attribTypeStr,XHR_buffer);if(createTriangleSoup){shape._webgl.makeSeparateTris.pushBuffer("normal",normals);return;} +var normalBuffer=gl.createBuffer();shape._webgl.buffers[2]=normalBuffer;gl.bindBuffer(gl.ARRAY_BUFFER,normalBuffer);gl.bufferData(gl.ARRAY_BUFFER,normals,gl.STATIC_DRAW);gl.vertexAttribPointer(sp.normal,binGeo._mesh._numNormComponents,shape._webgl.normalType,false,shape._normalStrideOffset[0],shape._normalStrideOffset[1]);gl.enableVertexAttribArray(sp.normal);normals=null;shape._nameSpace.doc.downloadCount-=1;shape._webgl.internalDownloadCount-=1;if(shape._webgl.internalDownloadCount==0) +shape._nameSpace.doc.needRender=true;that.checkError(gl);var t11=new Date().getTime()-t00;x3dom.debug.logInfo("XHR2/ normal load time: "+t11+" ms");};} +if(!binGeo._hasStrideOffset&&binGeo._vf.texCoord.length>0) +{var xmlhttp3=new XMLHttpRequest();xmlhttp3.open("GET",shape._nameSpace.getURL(binGeo._vf.texCoord),true);xmlhttp3.responseType="arraybuffer";shape._nameSpace.doc.downloadCount+=1;xmlhttp3.send(null);xmlhttp3.onload=function() +{var i,j;var tmp;if(!shape._webgl) +return;var XHR_buffer=binGeo._vf.compressed==true?x3dom.Utils.gunzip(xmlhttp3.response):xmlhttp3.response;var attribTypeStr=binGeo._vf.texCoordType;shape._webgl.texCoordType=x3dom.Utils.getVertexAttribType(attribTypeStr,gl);var texCoords=x3dom.Utils.getArrayBufferView(attribTypeStr,XHR_buffer);if(createTriangleSoup){shape._webgl.makeSeparateTris.pushBuffer("texCoord",texCoords);return;} +if(binGeo._vf["idsPerVertex"]) +{var idBuffer=gl.createBuffer();shape._webgl.buffers[5]=idBuffer;gl.bindBuffer(gl.ARRAY_BUFFER,idBuffer);var ids=x3dom.Utils.getArrayBufferView("Float32",texCoords.length/2);for(i=0,j=0;i0) +{var xmlhttp4=new XMLHttpRequest();xmlhttp4.open("GET",shape._nameSpace.getURL(binGeo._vf.color),true);xmlhttp4.responseType="arraybuffer";shape._nameSpace.doc.downloadCount+=1;xmlhttp4.send(null);xmlhttp4.onload=function() +{if(!shape._webgl) +return;var XHR_buffer=binGeo._vf.compressed==true?x3dom.Utils.gunzip(xmlhttp4.response):xmlhttp4.response;var attribTypeStr=binGeo._vf.colorType;shape._webgl.colorType=x3dom.Utils.getVertexAttribType(attribTypeStr,gl);var colors=x3dom.Utils.getArrayBufferView(attribTypeStr,XHR_buffer);if(createTriangleSoup){shape._webgl.makeSeparateTris.pushBuffer("color",colors);return;} +var colorBuffer=gl.createBuffer();shape._webgl.buffers[4]=colorBuffer;gl.bindBuffer(gl.ARRAY_BUFFER,colorBuffer);gl.bufferData(gl.ARRAY_BUFFER,colors,gl.STATIC_DRAW);gl.vertexAttribPointer(sp.color,binGeo._mesh._numColComponents,shape._webgl.colorType,false,shape._colorStrideOffset[0],shape._colorStrideOffset[1]);gl.enableVertexAttribArray(sp.color);colors=null;shape._nameSpace.doc.downloadCount-=1;shape._webgl.internalDownloadCount-=1;if(shape._webgl.internalDownloadCount==0) +shape._nameSpace.doc.needRender=true;that.checkError(gl);var t11=new Date().getTime()-t00;x3dom.debug.logInfo("XHR4/ color load time: "+t11+" ms");};}};x3dom.BinaryContainerLoader.setupPopGeo=function(shape,sp,gl,viewarea,currContext) +{if(this.outOfMemory){return;} +var popGeo=shape._cf.geometry.node;if(popGeo.hasIndex()){shape._webgl.popGeometry=1;shape._webgl.buffers[0]=gl.createBuffer();gl.bindBuffer(gl.ELEMENT_ARRAY_BUFFER,shape._webgl.buffers[0]);gl.bufferData(gl.ELEMENT_ARRAY_BUFFER,popGeo.getTotalNumberOfIndices()*2,gl.STATIC_DRAW);shape._webgl.buffers[5]=gl.createBuffer();var idBuffer=new Float32Array(popGeo._vf.vertexBufferSize);(function(){for(var i=0;i0){redrawNeeded=true;var indexDataView=new Uint8Array(data,0,indexDataLengthInBytes);gl.bindBuffer(gl.ELEMENT_ARRAY_BUFFER,shape._webgl.buffers[0]);(function(){var indexDataOffset=0;for(var i=0;i0){redrawNeeded=true;var attributeDataView=new Uint8Array(data,indexDataLengthInBytes,vertexDataLengthInBytes);gl.bindBuffer(gl.ARRAY_BUFFER,shape._webgl.buffers[1]);if(!popGeo.hasIndex()){gl.bufferSubData(gl.ARRAY_BUFFER,shape._webgl.currentNumVertices*popGeo.getAttributeStride(),attributeDataView);} +else{gl.bufferSubData(gl.ARRAY_BUFFER,popGeo.getVertexDataBufferOffset(lvl)*popGeo.getAttributeStride(),attributeDataView);} +shape._webgl.numVerticesAtLevel[lvl]=vertexDataLengthInBytes/popGeo.getAttributeStride();shape._webgl.currentNumVertices+=shape._webgl.numVerticesAtLevel[lvl];} +(function(){var numValidIndices=0;for(var i=shape._webgl.levelsAvailable;i0&&env._lowPriorityThreshold<1);this.sortTrans=drawableCollectionConfig.sortTrans;this.prioLevels=10;this.maxTreshold=100;this.sortBySortKey=false;this.sortByPriority=false;this.numberOfNodes=0;this.length=0;};x3dom.DrawableCollection.prototype.cull=function(transform,graphState,singlePath,planeMask){var node=graphState.boundedNode;if(!node||!node._vf.render){return 0;} +var volume=node.getVolume();var MASK_SET=63;if(this.frustumCulling&&graphState.needCulling){var wvol;if(singlePath&&!graphState.worldVolume.isValid()){graphState.worldVolume.transformFrom(transform,volume);wvol=graphState.worldVolume;} +else if(planeMask0||node.forceUpdateCoverage()){var modelViewMat=this.viewMatrix.mult(transform);graphState.center=modelViewMat.multMatrixPnt(volume.getCenter());var rVec=modelViewMat.multMatrixVec(volume.getRadialVec());var r=rVec.length();var dist=Math.max(-graphState.center.z-r,this.near);var projPixelLength=dist*this.pixelHeightAtDistOne;graphState.coverage=(r*2.0)/projPixelLength;if(this.smallFeatureThreshold>0&&graphState.coverage0){drawable.zPos=graphState.center.z;} +else{var center=transform.multMatrixPnt(shape.getCenter());center=this.viewMatrix.multMatrixPnt(center);drawable.zPos=center.z;}} +if(!this.sortBySortKey&&drawable.sortKey!=0){this.sortBySortKey=true;} +if(this.collection[drawable.sortType]===undefined){this.collection[drawable.sortType]=[];} +this.collection[drawable.sortType].push(drawable);this.length++;if(this.context&&this.gl){this.context.setupShape(this.gl,drawable,this.viewarea);}};x3dom.DrawableCollection.prototype.addDrawable=function(drawable){drawable.shaderID=drawable.shape.getShaderProperties(this.viewarea).id;var appearance=drawable.shape._cf.appearance.node;drawable.sortType=appearance?appearance._vf.sortType.toLowerCase():"opaque";drawable.sortKey=appearance?appearance._vf.sortKey:0;if(drawable.sortType=='transparent'){var center=drawable.transform.multMatrixPnt(drawable.shape.getCenter());center=this.viewMatrix.multMatrixPnt(center);drawable.zPos=center.z;} +if(!this.sortBySortKey&&drawable.sortKey!=0){this.sortBySortKey=true;} +if(this.collection[drawable.sortType]===undefined){this.collection[drawable.sortType]=[];} +this.collection[drawable.sortType].push(drawable);this.length++;if(this.context&&this.gl){this.context.setupShape(this.gl,drawable,this.viewarea);}};x3dom.DrawableCollection.prototype.calculatePriority=function(graphState){var priority=Math.max(0,graphState.coverage);var pl=this.prioLevels-1;priority=Math.min(Math.round(priority/(this.maxTreshold/pl)),pl);return priority;};x3dom.DrawableCollection.prototype.concat=function(){var opaque=(this.collection['opaque']!==undefined)?this.collection['opaque']:[];var transparent=(this.collection['transparent']!==undefined)?this.collection['transparent']:[];this.collection=opaque.concat(transparent);};x3dom.DrawableCollection.prototype.get=function(idx){return this.collection[idx];};x3dom.DrawableCollection.prototype.sort=function(){var opaque=[];var transparent=[];var that=this;if(this.collection['opaque']!==undefined){if(this.sortOpaque){this.collection['opaque'].sort(function(a,b){if(a.sortKey==b.sortKey||!that.sortBySortKey){return b.priority-a.priority;} +return a.sortKey-b.sortKey;});} +opaque=this.collection['opaque'];} +if(this.collection['transparent']!==undefined){if(this.sortTrans){this.collection['transparent'].sort(function(a,b){if(a.sortKey==b.sortKey||!that.sortBySortKey){if(a.priority==b.priority||!that.sortByPriority){return a.zPos-b.zPos;} +return b.priority-a.priority;} +return a.sortKey-b.sortKey;});} +transparent=this.collection['transparent'];} +this.collection=opaque.concat(transparent);};x3dom.DrawableCollection.prototype.forEach=function(fnc,maxPriority){maxPriority=(maxPriority!==undefined)?Math.min(maxPriority,this.prioLevels):this.prioLevels;var sortKey,priority,shaderID,drawable;for(sortKey=0;sortKey0;--priority) +{if(this.collection['opaque'][sortKey][priority]!==undefined) +{for(shaderID in this.collection['opaque'][sortKey][priority]) +{for(drawable=0;drawable0;--priority) +{if(this.collection['transparent'][sortKey][priority]!==undefined) +{for(var shaderId in this.collection['transparent'][sortKey][priority]) +{this.collection['transparent'][sortKey][priority][shaderId].sort(function(a,b){return a.zPos-b.zPos});for(drawable=0;drawable0&&that._buttonState!=4){var x=that._gridSize*Math.round(track.x/that._gridSize);var y=that._gridSize*Math.round(track.y/that._gridSize);var z=that._gridSize*Math.round(track.z/that._gridSize);track=new x3dom.fields.SFVec3f(x,y,z);} +if(!that._matrixTrafo){if(that._buttonState==4){that._moveable.setAttribute("rotation",track.toAxisAngle().toString());} +else{that._moveable.setAttribute("translation",track.toString());}} +else{if(that._buttonState==4){that._matrixTrafo.setRotate(track);} +else{that._matrixTrafo.setTranslate(track);} +that._moveable.setAttribute("matrix",that._matrixTrafo.toGL().toString());} +if(that._callback){that._callback(that._moveable,track);}} +that._lastX=pos[0];that._lastY=pos[1];}}};x3dom.Moveable.prototype.stop=function(event){for(var i=0,n=this._iMove.length;i>>8&255]<<16|H[b>>>16&255]<<8|H[b>>>24&255])>>32-a:H[b]>>8-a);if(8>a+f)g=g<>a-k-1&1,8===++f&&(f=0,d[e++]=H[g],g=0,e===d.length&&(d=this.f()));d[e]=g;this.buffer=d;this.m=f;this.index=e};F.prototype.finish=function(){var b=this.buffer,a=this.index,c;0ca;++ca){for(var K=ca,da=K,ea=7,K=K>>>1;K;K>>>=1)da<<=1,da|=K&1,--ea;ba[ca]=(da<>>0}var H=ba;function ja(b,a,c){var d,e="number"===typeof a?a:a=0,f="number"===typeof c?c:b.length;d=-1;for(e=f&7;e--;++a)d=d>>>8^O[(d^b[a])&255];for(e=f>>3;e--;a+=8)d=d>>>8^O[(d^b[a])&255],d=d>>>8^O[(d^b[a+1])&255],d=d>>>8^O[(d^b[a+2])&255],d=d>>>8^O[(d^b[a+3])&255],d=d>>>8^O[(d^b[a+4])&255],d=d>>>8^O[(d^b[a+5])&255],d=d>>>8^O[(d^b[a+6])&255],d=d>>>8^O[(d^b[a+7])&255];return(d^4294967295)>>>0} +var 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Uint32Array(ka):ka;function P(){}P.prototype.getName=function(){return this.name};P.prototype.getData=function(){return this.data};P.prototype.Y=function(){return this.Z};A("Zlib.GunzipMember",P);A("Zlib.GunzipMember.prototype.getName",P.prototype.getName);A("Zlib.GunzipMember.prototype.getData",P.prototype.getData);A("Zlib.GunzipMember.prototype.getMtime",P.prototype.Y);function la(b){this.buffer=new(B?Uint16Array:Array)(2*b);this.length=0}la.prototype.getParent=function(b){return 2*((b-2)/4|0)};la.prototype.push=function(b,a){var c,d,e=this.buffer,f;c=this.length;e[this.length++]=a;for(e[this.length++]=b;0e[d])f=e[c],e[c]=e[d],e[d]=f,f=e[c+1],e[c+1]=e[d+1],e[d+1]=f,c=d;else break;return this.length};la.prototype.pop=function(){var b,a,c=this.buffer,d,e,f;a=c[0];b=c[1];this.length-=2;c[0]=c[this.length];c[1]=c[this.length+1];for(f=0;;){e=2*f+2;if(e>=this.length)break;e+2c[e]&&(e+=2);if(c[e]>c[f])d=c[f],c[f]=c[e],c[e]=d,d=c[f+1],c[f+1]=c[e+1],c[e+1]=d;else break;f=e}return{index:b,value:a,length:this.length}};function ma(b){var a=b.length,c=0,d=Number.POSITIVE_INFINITY,e,f,g,k,h,l,s,p,m,n;for(p=0;pc&&(c=b[p]),b[p]>=1;n=g<<16|p;for(m=l;mS;S++)switch(u){case 143>=S:sa.push([S+48,8]);break;case 255>=S:sa.push([S-144+400,9]);break;case 279>=S:sa.push([S-256+0,7]);break;case 287>=S:sa.push([S-280+192,8]);break;default:q("invalid literal: "+S)} +na.prototype.g=function(){var b,a,c,d,e=this.input;switch(this.k){case 0:c=0;for(d=e.length;c>>8&255;m[n++]=l&255;m[n++]=l>>>8&255;if(B)m.set(f,n),n+=f.length,m=m.subarray(0,n);else{s=0;for(p=f.length;sz)for(;0z?z:138,D>z-3&&D=D?(I[G++]=17,I[G++]=D-3,M[17]++):(I[G++]=18,I[G++]=D-11,M[18]++),z-=D;else if(I[G++]=J[w],M[J[w]]++,z--,3>z)for(;0z?z:6,D>z-3&&DC;C++)wa[C]=oa[pb[C]];for(Z=19;4=a:return[265,a-11,1];case 14>=a:return[266,a-13,1];case 16>=a:return[267,a-15,1];case 18>=a:return[268,a-17,1];case 22>=a:return[269,a-19,2];case 26>=a:return[270,a-23,2];case 30>=a:return[271,a-27,2];case 34>=a:return[272,a-31,2];case 42>=a:return[273,a-35,3];case 50>=a:return[274,a-43,3];case 58>=a:return[275,a-51,3];case 66>=a:return[276,a-59,3];case 82>=a:return[277,a-67,4];case 98>=a:return[278,a-83,4];case 114>=a:return[279,a-99,4];case 130>=a:return[280,a-115,4];case 162>=a:return[281,a-131,5];case 194>=a:return[282,a-163,5];case 226>=a:return[283,a-195,5];case 257>=a:return[284,a-227,5];case 258===a:return[285,a-258,0];default:q("invalid length: "+a)}}var a=[],c,d;for(c=3;258>=c;c++)d=b(c),a[c]=d[2]<<24|d[1]<<16|d[0];return a}(),Aa=B?new Uint32Array(ya):ya;function ta(b,a){function c(a,c){var b=a.Q,d=[],e=0,f;f=Aa[a.length];d[e++]=f&65535;d[e++]=f>>16&255;d[e++]=f>>24;var g;switch(u){case 1===b:g=[0,b-1,0];break;case 2===b:g=[1,b-2,0];break;case 3===b:g=[2,b-3,0];break;case 4===b:g=[3,b-4,0];break;case 6>=b:g=[4,b-5,1];break;case 8>=b:g=[5,b-7,1];break;case 12>=b:g=[6,b-9,2];break;case 16>=b:g=[7,b-13,2];break;case 24>=b:g=[8,b-17,3];break;case 32>=b:g=[9,b-25,3];break;case 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wb(b,a){this.input=b;this.a=new(B?Uint8Array:Array)(32768);this.k=W.o;var c={},d;if((a||!(a={}))&&"number"===typeof a.compressionType)this.k=a.compressionType;for(d in a)c[d]=a[d];c.outputBuffer=this.a;this.K=new na(this.input,c)}var W=ra;wb.prototype.g=function(){var b,a,c,d,e,f,g,k=0;g=this.a;b=vb;switch(b){case vb:a=Math.LOG2E*Math.log(32768)-8;break;default:q(Error("invalid compression method"))}c=a<<4|b;g[k++]=c;switch(b){case vb:switch(this.k){case W.NONE:e=0;break;case W.v:e=1;break;case W.o:e=2;break;default:q(Error("unsupported compression type"))}break;default:q(Error("invalid compression method"))}d=e<<6|0;g[k++]=d|31-(256*c+d)%31;f=tb(this.input);this.K.b=k;g=this.K.g();k=g.length;B&&(g=new Uint8Array(g.buffer),g.length<=k+4&&(this.a=new Uint8Array(g.length+4),this.a.set(g),g=this.a),g=g.subarray(0,k+4));g[k++]=f>>24&255;g[k++]=f>>16&255;g[k++]=f>>8&255;g[k++]=f&255;return g};function xb(b,a){var c,d,e,f;if(Object.keys)c=Object.keys(a);else for(d in c=[],e=0,a)c[e++]=d;e=0;for(f=c.length;e-1);this.backend=this.x3dElem.getAttribute('backend');if(this.backend) +this.backend=this.backend.toLowerCase();else +this.backend='none';if(this.backend=='flash'){this.backend='flash';this.canvas=this._createFlashObject(x3dElem);if(this.canvas!=null){this.canvas.parent=this;this.gl=this._initFlashContext(this.canvas,this.flash_renderType);}else{this._createInitFailedDiv(x3dElem);return;}}else{this.canvas=this._createHTMLCanvas(x3dElem);this.canvas.parent=this;this.gl=this._initContext(this.canvas,(this.backend.search("desktop")>=0),(this.backend.search("mobile")>=0),(this.backend.search("flashie")>=0),(this.backend.search("webgl2")>=0));this.backend='webgl';if(this.gl==null) +{x3dom.debug.logInfo("Fallback to Flash Renderer");this.backend='flash';this.canvas=this._createFlashObject(x3dElem);if(this.canvas!=null){this.canvas.parent=this;this.gl=this._initFlashContext(this.canvas,this.flash_renderType);}else{this._createInitFailedDiv(x3dElem);return;}}} +x3dom.caps.BACKEND=this.backend;var runtimeEnabled=x3dElem.getAttribute("runtimeEnabled");if(runtimeEnabled!==null){this.hasRuntime=(runtimeEnabled.toLowerCase()=="true");}else{this.hasRuntime=x3dElem.hasRuntime;} +if(this.gl===null){this.hasRuntime=false;} +if(this.backend!="flash"){this.showStat=x3dElem.getAttribute("showStat");this.stateViewer=new x3dom.States(x3dElem);if(this.showStat!==null&&this.showStat=="true"){this.stateViewer.display(true);} +this.x3dElem.appendChild(this.stateViewer.viewer);} +this.showProgress=x3dElem.getAttribute("showProgress");this.progressDiv=this._createProgressDiv();this.progressDiv.style.display=(this.showProgress!==null&&this.showProgress=="true")?"inline":"none";this.x3dElem.appendChild(this.progressDiv);this.showTouchpoints=x3dElem.getAttribute("showTouchpoints");this.showTouchpoints=this.showTouchpoints?!(this.showTouchpoints.toLowerCase()=="false"):true;this.disableTouch=x3dElem.getAttribute("disableTouch");this.disableTouch=this.disableTouch?(this.disableTouch.toLowerCase()=="true"):false;if(this.canvas!==null&&this.gl!==null&&this.hasRuntime&&this.backend!=="flash"){this.canvas.mouse_dragging=false;this.canvas.mouse_button=0;this.canvas.mouse_drag_x=0;this.canvas.mouse_drag_y=0;this.canvas.isMulti=false;this.canvas.oncontextmenu=function(evt){evt.preventDefault();evt.stopPropagation();return false;};this.canvas.addEventListener("webglcontextlost",function(event){x3dom.debug.logError("WebGL context lost");event.preventDefault();},false);this.canvas.addEventListener("webglcontextrestored",function(event){x3dom.debug.logError("recover WebGL state and resources on context lost NYI");event.preventDefault();},false);this.canvas.addEventListener('mousedown',function(evt){if(!this.isMulti){this.focus();this.classList.add('x3dom-canvas-mousedown');switch(evt.button){case 0:this.mouse_button=1;break;case 1:this.mouse_button=4;break;case 2:this.mouse_button=2;break;default:this.mouse_button=0;break;} +if(evt.shiftKey){this.mouse_button=1;} +if(evt.ctrlKey){this.mouse_button=4;} +if(evt.altKey){this.mouse_button=2;} +var pos=this.parent.mousePosition(evt);this.mouse_drag_x=pos.x;this.mouse_drag_y=pos.y;this.mouse_dragging=true;this.parent.doc.onMousePress(that.gl,this.mouse_drag_x,this.mouse_drag_y,this.mouse_button);this.parent.doc.needRender=true;}},false);this.canvas.addEventListener('mouseup',function(evt){if(!this.isMulti){var prev_mouse_button=this.mouse_button;this.classList.remove('x3dom-canvas-mousedown');this.mouse_button=0;this.mouse_dragging=false;this.parent.doc.onMouseRelease(that.gl,this.mouse_drag_x,this.mouse_drag_y,this.mouse_button,prev_mouse_button);this.parent.doc.needRender=true;}},false);this.canvas.addEventListener('mouseover',function(evt){if(!this.isMulti){this.mouse_button=0;this.mouse_dragging=false;this.parent.doc.onMouseOver(that.gl,this.mouse_drag_x,this.mouse_drag_y,this.mouse_button);this.parent.doc.needRender=true;}},false);this.canvas.addEventListener('mouseout',function(evt){if(!this.isMulti){this.mouse_button=0;this.mouse_dragging=false;this.classList.remove('x3dom-canvas-mousedown');this.parent.doc.onMouseOut(that.gl,this.mouse_drag_x,this.mouse_drag_y,this.mouse_button);this.parent.doc.needRender=true;}},false);this.canvas.addEventListener('dblclick',function(evt){if(!this.isMulti){this.mouse_button=0;var pos=this.parent.mousePosition(evt);this.mouse_drag_x=pos.x;this.mouse_drag_y=pos.y;this.mouse_dragging=false;this.parent.doc.onDoubleClick(that.gl,this.mouse_drag_x,this.mouse_drag_y);this.parent.doc.needRender=true;}},false);this.canvas.addEventListener('mousemove',function(evt){if(!this.isMulti){var pos=this.parent.mousePosition(evt);if(pos.x!=that.lastMousePos.x||pos.y!=that.lastMousePos.y){that.lastMousePos=pos;if(evt.shiftKey){this.mouse_button=1;} +if(evt.ctrlKey){this.mouse_button=4;} +if(evt.altKey){this.mouse_button=2;} +this.mouse_drag_x=pos.x;this.mouse_drag_y=pos.y;if(this.mouse_dragging){this.parent.doc.onDrag(that.gl,this.mouse_drag_x,this.mouse_drag_y,this.mouse_button);} +else{this.parent.doc.onMove(that.gl,this.mouse_drag_x,this.mouse_drag_y,this.mouse_button);} +this.parent.doc.needRender=true;evt.preventDefault();evt.stopPropagation();}}},false);this.canvas.addEventListener('DOMMouseScroll',function(evt){if(!this.isMulti){this.focus();var originalY=this.parent.mousePosition(evt).y;this.mouse_drag_y-=4*evt.detail;this.parent.doc.onWheel(that.gl,this.mouse_drag_x,this.mouse_drag_y,originalY);this.parent.doc.needRender=true;evt.preventDefault();evt.stopPropagation();}},false);this.canvas.addEventListener('mousewheel',function(evt){if(!this.isMulti){this.focus();var originalY=this.parent.mousePosition(evt).y;this.mouse_drag_y-=0.2*evt.wheelDelta;this.parent.doc.onWheel(that.gl,this.mouse_drag_x,this.mouse_drag_y,originalY);this.parent.doc.needRender=true;evt.preventDefault();evt.stopPropagation();}},false);this.canvas.addEventListener('keypress',function(evt){var keysEnabled=this.parent.x3dElem.getAttribute("keysEnabled");if(!keysEnabled||keysEnabled.toLowerCase()=="true"){this.parent.doc.onKeyPress(evt.charCode);} +this.parent.doc.needRender=true;},true);this.canvas.addEventListener('keyup',function(evt){var keysEnabled=this.parent.x3dElem.getAttribute("keysEnabled");if(!keysEnabled||keysEnabled.toLowerCase()=="true"){this.parent.doc.onKeyUp(evt.keyCode);} +this.parent.doc.needRender=true;},true);this.canvas.addEventListener('keydown',function(evt){var keysEnabled=this.parent.x3dElem.getAttribute("keysEnabled");if(!keysEnabled||keysEnabled.toLowerCase()=="true"){this.parent.doc.onKeyDown(evt.keyCode);} +this.parent.doc.needRender=true;},true);var touches={numTouches:0,firstTouchTime:new Date().getTime(),firstTouchPoint:new x3dom.fields.SFVec2f(0,0),lastPos:new x3dom.fields.SFVec2f(),lastDrag:new x3dom.fields.SFVec2f(),lastMiddle:new x3dom.fields.SFVec2f(),lastSquareDistance:0,lastAngle:0,lastLayer:[],examineNavType:1,calcAngle:function(vector) +{var rotation=vector.normalize().dot(new x3dom.fields.SFVec2f(1,0));rotation=Math.acos(rotation);if(vector.y<0) +rotation=Math.PI+(Math.PI-rotation);return rotation;},disableTouch:this.disableTouch,visMarker:this.showTouchpoints,visMarkerBag:[],visualizeTouches:function(evt) +{if(!this.visMarker) +return;var touchBag=[];var marker=null;for(var i=0;i=0){marker=document.getElementById("visMarker"+id);marker.style.left=(evt.touches[i].pageX)+"px";marker.style.top=(evt.touches[i].pageY)+"px";} +else{marker=document.createElement("div");marker.appendChild(document.createTextNode("#"+id));marker.id="visMarker"+id;marker.className="x3dom-touch-marker";document.body.appendChild(marker);index=this.visMarkerBag.length;this.visMarkerBag[index]=id;} +touchBag.push(id);} +for(var j=this.visMarkerBag.length-1;j>=0;j--){var oldId=this.visMarkerBag[j];if(touchBag.indexOf(oldId)<0){this.visMarkerBag.splice(j,1);marker=document.getElementById("visMarker"+oldId);document.body.removeChild(marker);}}}};var mozilla_ids=[];var mozilla_touches={touches:[],preventDefault:function(){}};var touchStartHandler=function(evt,doc) +{this.isMulti=true;evt.preventDefault();touches.visualizeTouches(evt);this.focus();if(doc==null) +doc=this.parent.doc;var navi=doc._scene.getNavigationInfo();switch(navi.getType()){case"examine":touches.examineNavType=1;break;case"turntable":touches.examineNavType=2;break;default:touches.examineNavType=0;break;} +touches.lastLayer=[];var i,pos;for(i=0;i=2){touches.numTouches=2;var touch0=new x3dom.fields.SFVec2f(evt.touches[0].screenX,evt.touches[0].screenY);var touch1=new x3dom.fields.SFVec2f(evt.touches[1].screenX,evt.touches[1].screenY);var distance=touch1.subtract(touch0);var middle=distance.multiply(0.5).add(touch0);var squareDistance=distance.dot(distance);touches.lastMiddle=middle;touches.lastSquareDistance=squareDistance;touches.lastAngle=touches.calcAngle(distance);touches.lastPos=this.parent.mousePosition(evt.touches[0]);} +doc._scene.updateVolume();if(touches.examineNavType==1){for(i=0;i=2){touch0=new x3dom.fields.SFVec2f(evt.touches[0].screenX,evt.touches[0].screenY);touch1=new x3dom.fields.SFVec2f(evt.touches[1].screenX,evt.touches[1].screenY);distance=touch1.subtract(touch0);middle=distance.multiply(0.5).add(touch0);squareDistance=distance.dot(distance);deltaMiddle=middle.subtract(touches.lastMiddle);deltaZoom=squareDistance-touches.lastSquareDistance;deltaMove=new x3dom.fields.SFVec3f(deltaMiddle.x/screen.width,-deltaMiddle.y/screen.height,deltaZoom/(screen.width*screen.height*0.2));var rotation=touches.calcAngle(distance);var angleDelta=touches.lastAngle-rotation;touches.lastAngle=rotation;rotMatrix=x3dom.fields.SFMatrix4f.rotationZ(angleDelta);touches.lastMiddle=middle;touches.lastSquareDistance=squareDistance;doc.onMoveView(that.gl,deltaMove,rotMatrix);}} +else if(evt.touches.length){if(touches.examineNavType==2&&evt.touches.length>=2){touch0=new x3dom.fields.SFVec2f(evt.touches[0].screenX,evt.touches[0].screenY);touch1=new x3dom.fields.SFVec2f(evt.touches[1].screenX,evt.touches[1].screenY);distance=touch1.subtract(touch0);squareDistance=distance.dot(distance);deltaZoom=(squareDistance-touches.lastSquareDistance)/(0.1*(screen.width+screen.height));touches.lastPos.y+=deltaZoom;touches.lastSquareDistance=squareDistance;doc.onDrag(that.gl,touches.lastPos.x,touches.lastPos.y,2);} +else{pos=this.parent.mousePosition(evt.touches[0]);doc.onDrag(that.gl,pos.x,pos.y,1);}} +doc.needRender=true;};var touchMoveHandlerMoz=function(evt) +{evt.preventDefault();for(var i=0;icrossdomain.xml "+"file in the root directory of your domain to access textures");} +var width=this.x3dElem.getAttribute("width");var idx=-1;if(width==null){width=550;}else{idx=width.indexOf("px");if(idx!=-1){width=width.substr(0,idx);}} +var height=this.x3dElem.getAttribute("height");if(height==null){height=400;}else{idx=height.indexOf("px");if(idx!=-1){height=height.substr(0,idx);}} +var renderType=this.x3dElem.getAttribute("flashrenderer");if(renderType==null){this.flash_renderType="forward";}else{this.flash_renderType="deferred";} +var obj=document.createElement('object');obj.setAttribute('width','100%');obj.setAttribute('height','100%');obj.setAttribute('id',id);if(!document.doctype||document.doctype&&document.doctype.publicId&&document.doctype.publicId.search(/DTD XHTML/i)!=-1){x3dom.debug.logWarning("Flash backend doesn't like XHTML, please use HTML5!");obj.setAttribute('style','width:'+width+'px; height:'+height+'px;');}else{if(x3dElem.getAttribute('style')==null){x3dElem.setAttribute('style','width:'+width+'px; height:'+height+'px;');}} +this.appendParam(obj,'menu','false');this.appendParam(obj,'quality','high');this.appendParam(obj,'wmode','direct');this.appendParam(obj,'allowScriptAccess','always');this.appendParam(obj,'flashvars','canvasIdx='+this._canvasIdx+'&renderType='+this.flash_renderType);this.appendParam(obj,'movie',swf_path);if(navigator.appName=="Microsoft Internet Explorer"){x3dElem.appendChild(obj);obj.setAttribute('classid','clsid:d27cdb6e-ae6d-11cf-96b8-444553540000');}else{obj.setAttribute('type','application/x-shockwave-flash');obj.setAttribute('data',swf_path);x3dElem.appendChild(obj);} +return obj;}};x3dom.X3DCanvas.prototype._createHTMLCanvas=function(x3dElem) +{x3dom.debug.logInfo("Creating canvas for (X)3D element...");var canvas=document.createElement('canvas');canvas.setAttribute("class","x3dom-canvas");var userStyle=x3dElem.getAttribute("style");if(userStyle){x3dom.debug.logInfo("Inline X3D styles detected");} +var evtArr=["onmousedown","onmousemove","onmouseout","onmouseover","onmouseup","onclick","ondblclick","onkeydown","onkeypress","onkeyup","ontouchstart","ontouchmove","ontouchend","ontouchcancel","ontouchleave","ontouchenter","ondragstart","ondrop","ondragover"];for(var i=0;i=0){x3dom.debug.logWarning("The width attribute is to be specified in pixels not in percent.");} +canvas.style.width=w;canvas.setAttribute("width",w);} +if((h=x3dElem.getAttribute("height"))!==null){if(h.indexOf("%")>=0){x3dom.debug.logWarning("The height attribute is to be specified in pixels not in percent.");} +canvas.style.height=h;canvas.setAttribute("height",h);} +canvas.setAttribute("tabindex","0");return canvas;};x3dom.X3DCanvas.prototype._watchForResize=function(){var new_dim=[parseInt(x3dom.getStyle(this.canvas,"width")),parseInt(x3dom.getStyle(this.canvas,"height"))];if((this._current_dim[0]!=new_dim[0])||(this._current_dim[1]!=new_dim[1])){this._current_dim=new_dim;this.x3dElem.setAttribute("width",new_dim[0]+"px");this.x3dElem.setAttribute("height",new_dim[1]+"px");}};x3dom.X3DCanvas.prototype._createProgressDiv=function(){var progressDiv=document.createElement('div');progressDiv.setAttribute("class","x3dom-progress");var _text=document.createElement('strong');_text.appendChild(document.createTextNode('Loading...'));progressDiv.appendChild(_text);var _inner=document.createElement('span');_inner.setAttribute('style',"width: 25%;");_inner.appendChild(document.createTextNode(' '));progressDiv.appendChild(_inner);progressDiv.oncontextmenu=progressDiv.onmousedown=function(evt){evt.preventDefault();evt.stopPropagation();return false;};return progressDiv;};x3dom.X3DCanvas.prototype.mousePosition=function(evt) +{var x=0,y=0;if("getBoundingClientRect"in document.documentElement){var elem=evt.target.offsetParent;var box=elem.getBoundingClientRect();var scrollLeft=window.pageXOffset||document.documentElement.scrollLeft;var scrollTop=window.pageYOffset||document.documentElement.scrollTop;var compStyle=document.defaultView.getComputedStyle(elem,null);var paddingLeft=parseFloat(compStyle.getPropertyValue('padding-left'));var borderLeftWidth=parseFloat(compStyle.getPropertyValue('border-left-width'));var paddingTop=parseFloat(compStyle.getPropertyValue('padding-top'));var borderTopWidth=parseFloat(compStyle.getPropertyValue('border-top-width'));x=Math.round(evt.pageX-(box.left+paddingLeft+borderLeftWidth+scrollLeft));y=Math.round(evt.pageY-(box.top+paddingTop+borderTopWidth+scrollTop));} +else{x3dom.debug.logError('NO getBoundingClientRect');} +return new x3dom.fields.SFVec2f(x,y);};x3dom.X3DCanvas.prototype.tick=function() +{var runtime=this.x3dElem.runtime;var d=new Date().getTime();var diff=d-this.lastTimeFPSWasTaken;var fps=1000.0/(d-this.fps_t0);this.fps_t0=d;this.doc.advanceTime(d/1000.0);var animD=new Date().getTime()-d;if(this.doc.needRender){if(diff>=1000){runtime.fps=this.framesSinceLastTime/(diff/1000.0);runtime.addMeasurement('FPS',runtime.fps);this.framesSinceLastTime=0;this.lastTimeFPSWasTaken=d;} +this.framesSinceLastTime++;runtime.addMeasurement('ANIM',animD);if(runtime.isReady==false){runtime.ready();runtime.isReady=true;} +runtime.enterFrame();if(this.backend=='flash'){if(this.isFlashReady){this.canvas.setFPS({fps:fps});this.doc.needRender=false;this.doc.render(this.gl);}} +else{this.doc.needRender=false;this.doc.render(this.gl);if(!this.doc._scene._vf.doPickPass) +runtime.removeMeasurement('PICKING');} +runtime.exitFrame();} +if(this.progressDiv){if(this.doc.downloadCount>0){runtime.addInfo("#LOADS:",this.doc.downloadCount);}else{runtime.removeInfo("#LOADS:");} +if(this.doc.properties.getProperty("showProgress")!=='false'){if(this.progressDiv){this.progressDiv.childNodes[0].textContent='Loading: '+(+this.doc.downloadCount);if(this.doc.downloadCount>0){this.progressDiv.style.display='inline';}else{this.progressDiv.style.display='none';}}}else{this.progressDiv.style.display='none';}}};x3dom.X3DCanvas.prototype.load=function(uri,sceneElemPos,settings){this.doc=new x3dom.X3DDocument(this.canvas,this.gl,settings);var x3dCanvas=this;this.doc.onload=function(){if(x3dCanvas.hasRuntime){(function mainloop(){if(x3dCanvas.doc&&x3dCanvas.x3dElem.runtime){x3dCanvas._watchForResize();x3dCanvas.tick();window.requestAnimFrame(mainloop,x3dCanvas);}})();}else{x3dCanvas.tick();}};this.x3dElem.render=function(){if(x3dCanvas.hasRuntime){x3dCanvas.doc.needRender=true;}else{x3dCanvas.doc.render(x3dCanvas.gl);}};this.x3dElem.context=x3dCanvas.gl.ctx3d;this.doc.onerror=function(){alert('Failed to load X3D document');};this.doc.load(uri,sceneElemPos);};x3dom.runtime={};x3dom.Runtime=function(doc,canvas){this.doc=doc;this.canvas=canvas;this.config={};this.isReady=false;this.fps=0;this.states={measurements:[],infos:[]};};x3dom.Runtime.prototype.addMeasurement=function(title,value){this.states.measurements[title]=value;};x3dom.Runtime.prototype.removeMeasurement=function(title){if(this.states.measurements[title]){delete this.states.measurements[title];}};x3dom.Runtime.prototype.addInfo=function(title,value){this.states.infos[title]=value;};x3dom.Runtime.prototype.removeInfo=function(title){delete this.states.infos[title];};x3dom.Runtime.prototype.initialize=function(doc,canvas){this.doc=doc;this.canvas=canvas;this.config={};this.isReady=false;this.fps=0;};x3dom.Runtime.prototype.noBackendFound=function(){x3dom.debug.logInfo('No backend found. Unable to render.');};x3dom.Runtime.prototype.ready=function(){x3dom.debug.logInfo('System ready.');};x3dom.Runtime.prototype.enterFrame=function(){};x3dom.Runtime.prototype.exitFrame=function(){};x3dom.Runtime.prototype.triggerRedraw=function(){this.canvas.doc.needRender=true;};x3dom.Runtime.prototype.getActiveBindable=function(typeName){var stacks;var i,current,result;var type;stacks=this.canvas.doc._bindableBag._stacks;result=[];type=x3dom.nodeTypesLC[typeName.toLowerCase()];if(!type){x3dom.debug.logError('No node of type "'+typeName+'" found.');return null;} +for(i=0;i0){this.canvas.doc._viewarea.animateTo(this.canvas.doc._viewarea.getLightMatrix()[0],this.canvas.doc._scene.getViewpoint());return true;}else{x3dom.debug.logInfo("No lights to navigate to.");return false;}};x3dom.Runtime.prototype.uprightView=function(){this.canvas.doc._viewarea.uprightView();};x3dom.Runtime.prototype.fitAll=function(updateCenterOfRotation) +{if(updateCenterOfRotation===undefined){updateCenterOfRotation=true;} +var scene=this.canvas.doc._scene;scene.updateVolume();this.canvas.doc._viewarea.fit(scene._lastMin,scene._lastMax,updateCenterOfRotation);};x3dom.Runtime.prototype.fitObject=function(obj,updateCenterOfRotation) +{if(obj&&obj._x3domNode) +{if(updateCenterOfRotation===undefined){updateCenterOfRotation=true;} +var min=x3dom.fields.SFVec3f.MAX();var max=x3dom.fields.SFVec3f.MIN();var vol=obj._x3domNode.getVolume();vol.getBounds(min,max);var mat=obj._x3domNode.getCurrentTransform();min=mat.multMatrixPnt(min);max=mat.multMatrixPnt(max);if(x3dom.isa(obj._x3domNode,x3dom.nodeTypes.X3DTransformNode)) +{var invMat=obj._x3domNode._trafo.inverse();min=invMat.multMatrixPnt(min);max=invMat.multMatrixPnt(max);} +this.canvas.doc._viewarea.fit(min,max,updateCenterOfRotation);}};x3dom.Runtime.prototype.showAll=function(axis){this.canvas.doc._viewarea.showAll(axis);};x3dom.Runtime.prototype.showObject=function(obj) +{if(obj&&obj._x3domNode) +{var min=x3dom.fields.SFVec3f.MAX();var max=x3dom.fields.SFVec3f.MIN();var vol=obj._x3domNode.getVolume();vol.getBounds(min,max);var mat=obj._x3domNode.getCurrentTransform();min=mat.multMatrixPnt(min);max=mat.multMatrixPnt(max);var viewarea=this.canvas.doc._viewarea;var focalLen=(viewarea._widthx3dom.fields.Eps){focalLen/=ta;} +var w=viewarea._width-1;var h=viewarea._height-1;var frame=0.25;var minScreenPos=new x3dom.fields.SFVec2f(frame*w,frame*h);frame=0.75;var maxScreenPos=new x3dom.fields.SFVec2f(frame*w,frame*h);var dia2=max.subtract(min).multiply(0.5);var rw=dia2.length();var pc=min.add(dia2);var vc=maxScreenPos.subtract(minScreenPos).multiply(0.5);var rs=1.5*vc.length();vc=vc.add(minScreenPos);var dist=1.0;if(rs>x3dom.fields.Eps){dist=(rw/rs)*Math.sqrt(vc.x*vc.x+vc.y*vc.y+focalLen*focalLen);} +n0=mat.multMatrixVec(n0).normalize();n0=n0.multiply(dist);var p0=pc.add(n0);var qDir=x3dom.fields.Quaternion.rotateFromTo(new x3dom.fields.SFVec3f(0,0,1),n0);var R=qDir.toMatrix();var T=x3dom.fields.SFMatrix4f.translation(p0.negate());var M=x3dom.fields.SFMatrix4f.translation(p0);M=M.mult(R).mult(T).mult(M);var viewmat=M.inverse();viewarea.animateTo(viewmat,viewpoint);}};x3dom.Runtime.prototype.getCenter=function(domNode){if(domNode&&domNode._x3domNode&&(this.isA(domNode,"X3DShapeNode")||this.isA(domNode,"X3DGeometryNode"))) +{return domNode._x3domNode.getCenter();} +return null;};x3dom.Runtime.prototype.getCurrentTransform=function(domNode){if(domNode&&domNode._x3domNode) +{return domNode._x3domNode.getCurrentTransform();} +return null;};x3dom.Runtime.prototype.getBBox=function(domNode){if(domNode&&domNode._x3domNode&&this.isA(domNode,"X3DBoundedObject")) +{var vol=domNode._x3domNode.getVolume();return{min:x3dom.fields.SFVec3f.copy(vol.min),max:x3dom.fields.SFVec3f.copy(vol.max)}} +return null;};x3dom.Runtime.prototype.getSceneBBox=function(){var scene=this.canvas.doc._scene;scene.updateVolume();return{min:x3dom.fields.SFVec3f.copy(scene._lastMin),max:x3dom.fields.SFVec3f.copy(scene._lastMax)}};x3dom.Runtime.prototype.debug=function(show){var doc=this.canvas.doc;if(doc._viewarea._visDbgBuf===undefined) +doc._viewarea._visDbgBuf=(doc._x3dElem.getAttribute("showLog")==='true');if(arguments.length>0){if(show===true){doc._viewarea._visDbgBuf=true;x3dom.debug.logContainer.style.display="block";} +else{doc._viewarea._visDbgBuf=false;x3dom.debug.logContainer.style.display="none";}} +else{doc._viewarea._visDbgBuf=!doc._viewarea._visDbgBuf;x3dom.debug.logContainer.style.display=(doc._viewarea._visDbgBuf==true)?"block":"none";} +doc.needRender=true;return doc._viewarea._visDbgBuf;};x3dom.Runtime.prototype.navigationType=function(){return this.canvas.doc._scene.getNavigationInfo().getType();};x3dom.Runtime.prototype.noNav=function(){this.canvas.doc._scene.getNavigationInfo().setType("none");};x3dom.Runtime.prototype.examine=function(){this.canvas.doc._scene.getNavigationInfo().setType("examine");};x3dom.Runtime.prototype.turnTable=function(){this.canvas.doc._scene.getNavigationInfo().setType("turntable");};x3dom.Runtime.prototype.fly=function(){this.canvas.doc._scene.getNavigationInfo().setType("fly");};x3dom.Runtime.prototype.freeFly=function(){this.canvas.doc._scene.getNavigationInfo().setType("freefly");};x3dom.Runtime.prototype.lookAt=function(){this.canvas.doc._scene.getNavigationInfo().setType("lookat");};x3dom.Runtime.prototype.lookAround=function(){this.canvas.doc._scene.getNavigationInfo().setType("lookaround");};x3dom.Runtime.prototype.walk=function(){this.canvas.doc._scene.getNavigationInfo().setType("walk");};x3dom.Runtime.prototype.game=function(){this.canvas.doc._scene.getNavigationInfo().setType("game");};x3dom.Runtime.prototype.helicopter=function(){this.canvas.doc._scene.getNavigationInfo().setType("helicopter");};x3dom.Runtime.prototype.resetExamin=function(){var viewarea=this.canvas.doc._viewarea;viewarea._rotMat=x3dom.fields.SFMatrix4f.identity();viewarea._transMat=x3dom.fields.SFMatrix4f.identity();viewarea._movement=new x3dom.fields.SFVec3f(0,0,0);viewarea._needNavigationMatrixUpdate=true;this.canvas.doc.needRender=true;};x3dom.Runtime.prototype.togglePoints=function(lines){var doc=this.canvas.doc;var mod=(lines===true)?3:2;doc._viewarea._points=++doc._viewarea._points%mod;doc.needRender=true;return doc._viewarea._points;};x3dom.Runtime.prototype.pickRect=function(x1,y1,x2,y2){return this.canvas.doc.onPickRect(this.canvas.gl,x1,y1,x2,y2);};x3dom.Runtime.prototype.pickMode=function(options){if(options&&options.internal===true){return this.canvas.doc._scene._vf.pickMode;} +return this.canvas.doc._scene._vf.pickMode.toLowerCase();};x3dom.Runtime.prototype.changePickMode=function(type){type=type.toLowerCase();switch(type){case'idbuf':type='idBuf';break;case'idbuf24':type='idBuf24';break;case'idbufid':type='idBufId';break;case'texcoord':type='texCoord';break;case'color':type='color';break;case'box':type='box';break;default:x3dom.debug.logWarning("Switch pickMode to "+type+' unknown intersect type');type=undefined;} +if(type!==undefined){this.canvas.doc._scene._vf.pickMode=type;x3dom.debug.logInfo("Switched pickMode to '"+type+"'.");return true;} +return false;};x3dom.Runtime.prototype.speed=function(newSpeed){var navi=this.canvas.doc._scene.getNavigationInfo();if(newSpeed){navi._vf.speed=newSpeed;x3dom.debug.logInfo("Changed navigation speed to "+navi._vf.speed);} +return navi._vf.speed;};x3dom.Runtime.prototype.statistics=function(mode){var states=this.canvas.stateViewer;if(states){this.canvas.doc.needRender=true;if(mode===true){states.display(mode);return true;} +else if(mode===false){states.display(mode);return false;} +else{states.display(!states.active);return states.active;}} +return false;};x3dom.Runtime.prototype.processIndicator=function(mode){var processDiv=this.canvas.progressDiv;if(processDiv){if(mode===true){processDiv.style.display='inline';return true;} +else if(mode===false){processDiv.style.display='none';return false;} +return processDiv.style.display!='none'} +return false;};x3dom.Runtime.prototype.properties=function(){return this.canvas.doc.properties;};x3dom.Runtime.prototype.backendName=function(){return this.canvas.backend;};x3dom.Runtime.prototype.getFPS=function(){return this.fps;};x3dom.Runtime.prototype.isA=function(domNode,nodeType){var inherits=false;if(nodeType&&domNode&&domNode._x3domNode){if(nodeType===""){nodeType="X3DNode";} +inherits=x3dom.isa(domNode._x3domNode,x3dom.nodeTypesLC[nodeType.toLowerCase()]);} +return inherits;};x3dom.detectActiveX=function(){var isInstalled=false;if(window.ActiveXObject){var control=null;try{control=new ActiveXObject('AVALONATX.InstantPluginATXCtrl.1');}catch(e){} +if(control){isInstalled=true;}} +return isInstalled;};x3dom.rerouteSetAttribute=function(node,browser){node._setAttribute=node.setAttribute;node.setAttribute=function(name,value){var id=node.getAttribute("_x3domNode");var anode=browser.findNode(id);if(anode) +return anode.parseField(name,value);else +return 0;};for(var i=0;i" ++x3dom.versionInfo.revision+", "+"Date "+x3dom.versionInfo.date);} +x3dom.debug.logInfo("Found "+(x3ds.length-w3sg.length)+" X3D and "+ +w3sg.length+" (experimental) WebSG nodes...");var x3d_element;var x3dcanvas;var altDiv,altP,aLnk,altImg;var t0,t1;for(i=0;i2.3) +{font_size=2.3;}} +var textX,textY;var paragraph=this.node._vf.string;var text_canvas=document.createElement('canvas');text_canvas.dir=leftToRight;var textHeight=font_size*42;var textAlignment=font_justify;document.body.appendChild(text_canvas);var text_ctx=text_canvas.getContext('2d');text_ctx.font=font_style+" "+textHeight+"px "+font_family;var maxWidth=text_ctx.measureText(paragraph[0]).width;var i;for(i=1;imaxWidth) +maxWidth=text_ctx.measureText(paragraph[i]).width;} +var canvas_scale=1.1;text_canvas.width=maxWidth*canvas_scale;text_canvas.height=textHeight*paragraph.length*canvas_scale;switch(textAlignment){case"left":textX=0;break;case"center":textX=text_canvas.width/2;break;case"right":textX=text_canvas.width;break;} +var txtW=text_canvas.width;var txtH=text_canvas.height;text_ctx.fillStyle='rgba(0,0,0,0)';text_ctx.fillRect(0,0,text_ctx.canvas.width,text_ctx.canvas.height);text_ctx.fillStyle='white';text_ctx.lineWidth=2.5;text_ctx.strokeStyle='grey';text_ctx.textBaseline='top';text_ctx.font=font_style+" "+textHeight+"px "+font_family;text_ctx.textAlign=textAlignment;for(i=0;i1){x3dom.debug.logError("X3D element has more than one Scene child (has "+ +x3dElem.childNodes.length+").");} +else{return sceneElems[0];} +return null;};x3dom.X3DDocument.prototype._setup=function(sceneDoc,uriDocs,sceneElemPos){var doc=this;function cleanNodeBag(bag,node){for(var i=0,n=bag.length;i0){this._viewarea.animateTo(this._viewarea.getLightMatrix()[0],this._scene.getViewpoint());} +break;case 117:this._viewarea.uprightView();break;case 118:var that=this;(function(){var viewpoint=that._viewarea._scene.getViewpoint();var mat_view=that._viewarea.getViewMatrix().inverse();var rotation=new x3dom.fields.Quaternion(0,0,1,0);rotation.setValue(mat_view);var rot=rotation.toAxisAngle();var translation=mat_view.e3();x3dom.debug.logInfo('\n<Viewpoint position="'+translation.x.toFixed(5)+' ' ++translation.y.toFixed(5)+' '+translation.z.toFixed(5)+'" '+'orientation="'+rot[0].x.toFixed(5)+' '+rot[0].y.toFixed(5)+' ' ++rot[0].z.toFixed(5)+' '+rot[1].toFixed(5)+'" \n\t'+'zNear="'+viewpoint.getNear().toFixed(5)+'" '+'zFar="'+viewpoint.getFar().toFixed(5)+'" '+'description="'+viewpoint._vf.description+'">'+'</Viewpoint>');})();break;case 119:nav.setType("walk",this._viewarea);break;case 121:nav.setType("freefly",this._viewarea);break;default:}};x3dom.X3DDocument.prototype.shutdown=function(ctx) +{if(!ctx){return;} +ctx.shutdown(this._viewarea);};x3dom.MatrixMixer=function(beginTime,endTime){if(arguments.length===0){this._beginTime=0;this._endTime=1;} +else{this._beginTime=beginTime;this._endTime=endTime;} +this._beginMat=x3dom.fields.SFMatrix4f.identity();this._beginInvMat=x3dom.fields.SFMatrix4f.identity();this._beginLogMat=x3dom.fields.SFMatrix4f.identity();this._endMat=x3dom.fields.SFMatrix4f.identity();this._endLogMat=x3dom.fields.SFMatrix4f.identity();};x3dom.MatrixMixer.prototype.calcFraction=function(time){var fraction=(time-this._beginTime)/(this._endTime-this._beginTime);return(Math.sin((fraction*Math.PI)-(Math.PI/2))+1)/2.0;};x3dom.MatrixMixer.prototype.setBeginMatrix=function(mat){this._beginMat.setValues(mat);this._beginInvMat=mat.inverse();this._beginLogMat=x3dom.fields.SFMatrix4f.zeroMatrix();};x3dom.MatrixMixer.prototype.setEndMatrix=function(mat){this._endMat.setValues(mat);this._endLogMat=mat.mult(this._beginInvMat).log();this._logDiffMat=this._endLogMat.addScaled(this._beginLogMat,-1);};x3dom.MatrixMixer.prototype.mix=function(time){var mat=null;if(time<=this._beginTime) +{mat=x3dom.fields.SFMatrix4f.copy(this._beginLogMat);} +else +{if(time>=this._endTime) +{mat=x3dom.fields.SFMatrix4f.copy(this._endLogMat);} +else +{var fraction=this.calcFraction(time);mat=this._logDiffMat.multiply(fraction).add(this._beginLogMat);}} +return mat.exp().mult(this._beginMat);};x3dom.InputTypes={NAVIGATION:1,INTERACTION:2};x3dom.Viewarea=function(document,scene){this._doc=document;this._scene=scene;document._nodeBag.viewarea.push(this);this._pickingInfo={pickPos:new x3dom.fields.SFVec3f(0,0,0),pickNorm:new x3dom.fields.SFVec3f(0,0,1),pickObj:null,firstObj:null,lastObj:null,lastClickObj:null,shadowObjectId:-1};this._currentInputType=x3dom.InputTypes.NAVIGATION;this._rotMat=x3dom.fields.SFMatrix4f.identity();this._transMat=x3dom.fields.SFMatrix4f.identity();this._movement=new x3dom.fields.SFVec3f(0,0,0);this._needNavigationMatrixUpdate=true;this._deltaT=0;this._flyMat=null;this._pitch=0;this._yaw=0;this._eyePos=new x3dom.fields.SFVec3f(0,0,0);this._width=400;this._height=300;this._dx=0;this._dy=0;this._lastX=-1;this._lastY=-1;this._pressX=-1;this._pressY=-1;this._lastButton=0;this._points=0;this._numRenderedNodes=0;this._pick=new x3dom.fields.SFVec3f(0,0,0);this._pickNorm=new x3dom.fields.SFVec3f(0,0,1);this._isAnimating=false;this._isMoving=false;this._lastTS=0;this._mixer=new x3dom.MatrixMixer();this.arc=null;};x3dom.Viewarea.prototype.tick=function(timeStamp) +{var needMixAnim=false;var env=this._scene.getEnvironment();if(env._vf.enableARC&&this.arc==null) +{this.arc=new x3dom.arc.AdaptiveRenderControl(this._scene);} +if(this._mixer._beginTime>0) +{needMixAnim=true;if(timeStamp>=this._mixer._beginTime) +{if(timeStamp<=this._mixer._endTime) +{var mat=this._mixer.mix(timeStamp);this._scene.getViewpoint().setView(mat);} +else{this._mixer._beginTime=0;this._mixer._endTime=0;this._scene.getViewpoint().setView(this._mixer._endMat);}} +else{this._mixer._beginTime=0;this._mixer._endTime=0;this._scene.getViewpoint().setView(this._mixer._beginMat);}} +var needNavAnim=this.navigateTo(timeStamp);var lastIsAnimating=this._isAnimating;this._lastTS=timeStamp;this._isAnimating=(needMixAnim||needNavAnim);if(this.arc!=null) +{this.arc.update(this.isMovingOrAnimating()?1:0,this._doc._x3dElem.runtime.getFPS());} +return(this._isAnimating||lastIsAnimating);};x3dom.Viewarea.prototype.isMoving=function() +{return this._isMoving;};x3dom.Viewarea.prototype.isAnimating=function() +{return this._isAnimating;};x3dom.Viewarea.prototype.isMovingOrAnimating=function() +{return(this._isMoving||this._isAnimating);};x3dom.Viewarea.prototype.navigateTo=function(timeStamp) +{var navi=this._scene.getNavigationInfo();var navType=navi.getType();var needNavAnim=(this._currentInputType==x3dom.InputTypes.NAVIGATION)&&(navType==="game"||(this._lastButton>0&&(navType.indexOf("fly")>=0||navType==="walk"||navType==="helicopter"||navType.substr(0,5)==="looka")));this._deltaT=timeStamp-this._lastTS;var removeZeroMargin=function(val,offset){if(val>0){if(val<=offset){return 0;}else{return val-offset;}}else if(val<=0){if(val>=-offset){return 0;}else{return val+offset;}}};var humanizeDiff=function(scale,diff){return((diff<0)?-1:1)*Math.pow(scale*Math.abs(diff),1.65);};if(needNavAnim) +{var avatarRadius=0.25;var avatarHeight=1.6;var avatarKnee=0.75;if(navi._vf.avatarSize.length>2){avatarRadius=navi._vf.avatarSize[0];avatarHeight=navi._vf.avatarSize[1];avatarKnee=navi._vf.avatarSize[2];} +var currViewMat=this.getViewMatrix();var dist=0;var screenSize=Math.min(this._width,this._height);var rdeltaX=removeZeroMargin((this._pressX-this._lastX)/screenSize,0.01);var rdeltaY=removeZeroMargin((this._pressY-this._lastY)/screenSize,0.01);var userXdiff=humanizeDiff(1,rdeltaX);var userYdiff=humanizeDiff(1,rdeltaY);var step=(this._lastButton&2)?-1:1;step*=(this._deltaT*navi._vf.speed);var userXstep=this._deltaT*navi._vf.speed*userXdiff;var userYstep=this._deltaT*navi._vf.speed*userYdiff;var phi=Math.PI*this._deltaT*userXdiff;var theta=Math.PI*this._deltaT*userYdiff;if(this._needNavigationMatrixUpdate===true) +{this._needNavigationMatrixUpdate=false;this._rotMat=x3dom.fields.SFMatrix4f.identity();this._transMat=x3dom.fields.SFMatrix4f.identity();this._movement=new x3dom.fields.SFVec3f(0,0,0);var angleX=0;var angleY=Math.asin(currViewMat._02);var C=Math.cos(angleY);if(Math.abs(C)>0.0001){angleX=Math.atan2(-currViewMat._12/C,currViewMat._22/C);} +this._flyMat=currViewMat.inverse();this._from=this._flyMat.e3();this._at=this._from.subtract(this._flyMat.e2());if(navType==="helicopter") +this._at.y=this._from.y;if(navType.substr(0,5)==="looka") +{this._up=this._flyMat.e1();} +else +{if(typeof this._up=='undefined') +{this._up=this._flyMat.e1();}} +this._pitch=angleX*180/Math.PI;this._yaw=angleY*180/Math.PI;this._eyePos=this._from.negate();} +var tmpAt=null,tmpUp=null,tmpMat=null;var q,temp,fin;var lv,sv,up;if(navType==="game") +{this._pitch+=this._dy;this._yaw+=this._dx;if(this._pitch>=89)this._pitch=89;if(this._pitch<=-89)this._pitch=-89;if(this._yaw>=360)this._yaw-=360;if(this._yaw<0)this._yaw=360+this._yaw;this._dx=0;this._dy=0;var xMat=x3dom.fields.SFMatrix4f.rotationX(this._pitch/180*Math.PI);var yMat=x3dom.fields.SFMatrix4f.rotationY(this._yaw/180*Math.PI);var fPos=x3dom.fields.SFMatrix4f.translation(this._eyePos);this._flyMat=xMat.mult(yMat).mult(fPos);var flyMat=this._flyMat.inverse();var tmpFrom=flyMat.e3();tmpUp=new x3dom.fields.SFVec3f(0,-1,0);tmpAt=tmpFrom.add(tmpUp);tmpUp=flyMat.e0().cross(tmpUp).normalize();tmpMat=x3dom.fields.SFMatrix4f.lookAt(tmpFrom,tmpAt,tmpUp);tmpMat=tmpMat.inverse();this._scene._nameSpace.doc.ctx.pickValue(this,this._width/2,this._height/2,this._lastButton,tmpMat,this.getProjectionMatrix().mult(tmpMat));if(this._pickingInfo.pickObj) +{dist=this._pickingInfo.pickPos.subtract(tmpFrom).length();tmpFrom.y+=(avatarHeight-dist);flyMat.setTranslate(tmpFrom);this._eyePos=flyMat.e3().negate();this._flyMat=flyMat.inverse();this._pickingInfo.pickObj=null;} +this._scene.getViewpoint().setView(this._flyMat);return needNavAnim;} +else if(navType==="helicopter"){var typeParams=navi.getTypeParams();if(this._lastButton&2) +{var stepUp=200*userYstep;typeParams[1]+=stepUp;navi.setTypeParams(typeParams);} +if(this._lastButton&1){step=300*userYstep;} +else{step=0;} +theta=typeParams[0];this._from.y=typeParams[1];this._at.y=this._from.y;q=x3dom.fields.Quaternion.axisAngle(this._up,phi);temp=q.toMatrix();fin=x3dom.fields.SFMatrix4f.translation(this._from);fin=fin.mult(temp);temp=x3dom.fields.SFMatrix4f.translation(this._from.negate());fin=fin.mult(temp);this._at=fin.multMatrixPnt(this._at);lv=this._at.subtract(this._from).normalize();sv=lv.cross(this._up).normalize();up=sv.cross(lv).normalize();lv=lv.multiply(step);this._from=this._from.add(lv);this._at=this._at.add(lv);q=x3dom.fields.Quaternion.axisAngle(sv,theta);temp=q.toMatrix();fin=x3dom.fields.SFMatrix4f.translation(this._from);fin=fin.mult(temp);temp=x3dom.fields.SFMatrix4f.translation(this._from.negate());fin=fin.mult(temp);var at=fin.multMatrixPnt(this._at);this._flyMat=x3dom.fields.SFMatrix4f.lookAt(this._from,at,up);this._scene.getViewpoint().setView(this._flyMat.inverse());return needNavAnim;} +q=x3dom.fields.Quaternion.axisAngle(this._up,phi);temp=q.toMatrix();fin=x3dom.fields.SFMatrix4f.translation(this._from);fin=fin.mult(temp);temp=x3dom.fields.SFMatrix4f.translation(this._from.negate());fin=fin.mult(temp);this._at=fin.multMatrixPnt(this._at);lv=this._at.subtract(this._from).normalize();sv=lv.cross(this._up).normalize();up=sv.cross(lv).normalize();q=x3dom.fields.Quaternion.axisAngle(sv,theta);temp=q.toMatrix();fin=x3dom.fields.SFMatrix4f.translation(this._from);fin=fin.mult(temp);temp=x3dom.fields.SFMatrix4f.translation(this._from.negate());fin=fin.mult(temp);this._at=fin.multMatrixPnt(this._at);if(navType.substr(0,5)!=="looka") +{var currProjMat=this.getProjectionMatrix();if(navType!=="freefly"){if(step<0){tmpMat=new x3dom.fields.SFMatrix4f();tmpMat.setValue(this._last_mat_view.e0(),this._last_mat_view.e1(),this._last_mat_view.e2().negate(),this._last_mat_view.e3());this._scene._nameSpace.doc.ctx.pickValue(this,this._width/2,this._height/2,this._lastButton,tmpMat,currProjMat.mult(tmpMat));} +else{this._scene._nameSpace.doc.ctx.pickValue(this,this._width/2,this._height/2,this._lastButton);} +if(this._pickingInfo.pickObj) +{dist=this._pickingInfo.pickPos.subtract(this._from).length();if(dist<=avatarRadius){step=0;}}} +lv=this._at.subtract(this._from).normalize().multiply(step);this._at=this._at.add(lv);this._from=this._from.add(lv);if(navType==="walk") +{tmpAt=this._from.addScaled(up,-1.0);tmpUp=sv.cross(up.negate()).normalize();tmpMat=x3dom.fields.SFMatrix4f.lookAt(this._from,tmpAt,tmpUp);tmpMat=tmpMat.inverse();this._scene._nameSpace.doc.ctx.pickValue(this,this._width/2,this._height/2,this._lastButton,tmpMat,currProjMat.mult(tmpMat));if(this._pickingInfo.pickObj) +{dist=this._pickingInfo.pickPos.subtract(this._from).length();this._at=this._at.add(up.multiply(avatarHeight-dist));this._from=this._from.add(up.multiply(avatarHeight-dist));}} +this._pickingInfo.pickObj=null;} +this._flyMat=x3dom.fields.SFMatrix4f.lookAt(this._from,this._at,up);this._scene.getViewpoint().setView(this._flyMat.inverse());} +return needNavAnim;};x3dom.Viewarea.prototype.moveFwd=function() +{var navi=this._scene.getNavigationInfo();if(navi.getType()==="game") +{var avatarRadius=0.25;var avatarHeight=1.6;if(navi._vf.avatarSize.length>2){avatarRadius=navi._vf.avatarSize[0];avatarHeight=navi._vf.avatarSize[1];} +var speed=5*this._deltaT*navi._vf.speed;var yRotRad=(this._yaw/180*Math.PI);var xRotRad=(this._pitch/180*Math.PI);var dist=0;var fMat=this._flyMat.inverse();this._scene._nameSpace.doc.ctx.pickValue(this,this._width/2,this._height/2,this._lastButton);if(this._pickingInfo.pickObj) +{dist=this._pickingInfo.pickPos.subtract(fMat.e3()).length();if(dist<=2*avatarRadius){} +else{this._eyePos.x-=Math.sin(yRotRad)*speed;this._eyePos.z+=Math.cos(yRotRad)*speed;this._eyePos.y+=Math.sin(xRotRad)*speed;}}}};x3dom.Viewarea.prototype.moveBwd=function() +{var navi=this._scene.getNavigationInfo();if(navi.getType()==="game") +{var speed=5*this._deltaT*navi._vf.speed;var yRotRad=(this._yaw/180*Math.PI);var xRotRad=(this._pitch/180*Math.PI);this._eyePos.x+=Math.sin(yRotRad)*speed;this._eyePos.z-=Math.cos(yRotRad)*speed;this._eyePos.y-=Math.sin(xRotRad)*speed;}};x3dom.Viewarea.prototype.strafeRight=function() +{var navi=this._scene.getNavigationInfo();if(navi.getType()==="game") +{var speed=5*this._deltaT*navi._vf.speed;var yRotRad=(this._yaw/180*Math.PI);this._eyePos.x-=Math.cos(yRotRad)*speed;this._eyePos.z-=Math.sin(yRotRad)*speed;}};x3dom.Viewarea.prototype.strafeLeft=function() +{var navi=this._scene.getNavigationInfo();if(navi.getType()==="game") +{var speed=5*this._deltaT*navi._vf.speed;var yRotRad=(this._yaw/180*Math.PI);this._eyePos.x+=Math.cos(yRotRad)*speed;this._eyePos.z+=Math.sin(yRotRad)*speed;}};x3dom.Viewarea.prototype.animateTo=function(target,prev,dur) +{var navi=this._scene.getNavigationInfo();if(x3dom.isa(target,x3dom.nodeTypes.X3DViewpointNode)){target=target.getViewMatrix().mult(target.getCurrentTransform().inverse());} +if(navi._vf.transitionType[0].toLowerCase()!=="teleport"&&navi.getType()!=="game") +{if(prev&&x3dom.isa(prev,x3dom.nodeTypes.X3DViewpointNode)){prev=prev.getViewMatrix().mult(prev.getCurrentTransform().inverse()).mult(this._transMat).mult(this._rotMat);this._mixer._beginTime=this._lastTS;if(arguments.length>=3){this._mixer._endTime=this._lastTS+dur;} +else{this._mixer._endTime=this._lastTS+navi._vf.transitionTime;} +this._mixer.setBeginMatrix(prev);this._mixer.setEndMatrix(target);this._scene.getViewpoint().setView(prev);} +else{this._scene.getViewpoint().setView(target);}} +else +{this._scene.getViewpoint().setView(target);} +this._rotMat=x3dom.fields.SFMatrix4f.identity();this._transMat=x3dom.fields.SFMatrix4f.identity();this._movement=new x3dom.fields.SFVec3f(0,0,0);this._needNavigationMatrixUpdate=true;};x3dom.Viewarea.prototype.getLights=function(){var enabledLights=[];for(var i=0;i0.0){return true;}} +return false;};x3dom.Viewarea.prototype.updateSpecialNavigation=function(viewpoint,mat_viewpoint){var navi=this._scene.getNavigationInfo();var navType=navi.getType();if(navType=="helicopter"&&!navi._heliUpdated) +{var typeParams=navi.getTypeParams();var theta=typeParams[0];var currViewMat=viewpoint.getViewMatrix().mult(mat_viewpoint.inverse()).inverse();this._from=currViewMat.e3();this._at=this._from.subtract(currViewMat.e2());this._up=new x3dom.fields.SFVec3f(0,1,0);this._from.y=typeParams[1];this._at.y=this._from.y;var sv=currViewMat.e0();var q=x3dom.fields.Quaternion.axisAngle(sv,theta);var temp=q.toMatrix();var fin=x3dom.fields.SFMatrix4f.translation(this._from);fin=fin.mult(temp);temp=x3dom.fields.SFMatrix4f.translation(this._from.negate());fin=fin.mult(temp);this._at=fin.multMatrixPnt(this._at);this._flyMat=x3dom.fields.SFMatrix4f.lookAt(this._from,this._at,this._up);this._scene.getViewpoint().setView(this._flyMat.inverse());navi._heliUpdated=true;}};x3dom.Viewarea.prototype.getViewpointMatrix=function() +{var viewpoint=this._scene.getViewpoint();var mat_viewpoint=viewpoint.getCurrentTransform();this.updateSpecialNavigation(viewpoint,mat_viewpoint);return viewpoint.getViewMatrix().mult(mat_viewpoint.inverse());};x3dom.Viewarea.prototype.getViewMatrix=function() +{return this.getViewpointMatrix().mult(this._transMat).mult(this._rotMat);};x3dom.Viewarea.prototype.getLightMatrix=function() +{var lights=this._doc._nodeBag.lights;var i,n=lights.length;if(n>0) +{var vol=this._scene.getVolume();if(vol.isValid()) +{var min=x3dom.fields.SFVec3f.MAX();var max=x3dom.fields.SFVec3f.MIN();vol.getBounds(min,max);var l_arr=[];var viewpoint=this._scene.getViewpoint();var fov=viewpoint.getFieldOfView();var dia=max.subtract(min);var dist1=(dia.y/2.0)/Math.tan(fov/2.0)+(dia.z/2.0);var dist2=(dia.x/2.0)/Math.tan(fov/2.0)+(dia.z/2.0);dia=min.add(dia.multiply(0.5));for(i=0;idist2?dist1:dist2)));} +l_arr[i]=lights[i].getViewMatrix(dia);} +return l_arr;}} +return[this.getViewMatrix()];};x3dom.Viewarea.prototype.getWCtoLCMatrix=function(lMat) +{var proj=this.getProjectionMatrix();var view;if(arguments.length===0){view=this.getLightMatrix()[0];} +else{view=lMat;} +return proj.mult(view);};x3dom.Viewarea.prototype.getWCtoLCMatricesPointLight=function(view,lightNode,mat_proj) +{var zNear=lightNode._vf.zNear;var zFar=lightNode._vf.zFar;var proj=this.getLightProjectionMatrix(view,zNear,zFar,false,mat_proj);proj._00=1;proj._11=1;var matrices=[];matrices[0]=proj.mult(view);var rotationMatrix;for(var i=1;i<=3;i++){rotationMatrix=x3dom.fields.SFMatrix4f.rotationY(i*Math.PI/2);matrices[i]=proj.mult(rotationMatrix.mult(view));} +rotationMatrix=x3dom.fields.SFMatrix4f.rotationX(Math.PI/2);matrices[4]=proj.mult(rotationMatrix.mult(view));rotationMatrix=x3dom.fields.SFMatrix4f.rotationX(3*Math.PI/2);matrices[5]=proj.mult(rotationMatrix.mult(view));return matrices;};x3dom.Viewarea.prototype.getWCtoLCMatricesCascaded=function(view,lightNode,mat_proj) +{var numCascades=Math.max(1,Math.min(lightNode._vf.shadowCascades,6));var splitFactor=Math.max(0,Math.min(lightNode._vf.shadowSplitFactor,1));var splitOffset=Math.max(0,Math.min(lightNode._vf.shadowSplitOffset,1));var isSpotLight=x3dom.isa(lightNode,x3dom.nodeTypes.SpotLight);var zNear=lightNode._vf.zNear;var zFar=lightNode._vf.zFar;var proj=this.getLightProjectionMatrix(view,zNear,zFar,true,mat_proj);if(isSpotLight){proj._00=1;proj._11=1;} +var viewProj=proj.mult(view);var matrices=[];if(numCascades==1){matrices[0]=viewProj;return matrices;} +var cascadeSplits=this.getShadowSplitDepths(numCascades,splitFactor,splitOffset,true,mat_proj);for(var i=0;i0||zFar>0){var lightPos=lMat.inverse().e3();var nearScale=0.8;var farScale=1.2;var min=x3dom.fields.SFVec3f.copy(this._scene._lastMin);var max=x3dom.fields.SFVec3f.copy(this._scene._lastMax);var dia=max.subtract(min);var sRad=dia.length()/2;var sCenter=min.add(dia.multiply(0.5));var vDist=(lightPos.subtract(sCenter)).length();var near,far;if(sRad){if(vDist>sRad) +near=(vDist-sRad)*nearScale;else +near=1;far=(vDist+sRad)*farScale;} +if(zNear>0)near=zNear;if(zFar>0)far=zFar;proj._22=-(far+near)/(far-near);proj._23=-2.0*far*near/(far-near);return proj;} +else{var cropMatrix=this.getLightCropMatrix(proj.mult(lMat));return cropMatrix.mult(proj);}};x3dom.Viewarea.prototype.getProjectionMatrix=function() +{var viewpoint=this._scene.getViewpoint();return viewpoint.getProjectionMatrix(this._width/this._height);};x3dom.Viewarea.prototype.getViewfrustum=function(clipMat) +{var env=this._scene.getEnvironment();if(env._vf.frustumCulling==true) +{if(arguments.length==0){var proj=this.getProjectionMatrix();var view=this.getViewMatrix();return new x3dom.fields.FrustumVolume(proj.mult(view));} +else{return new x3dom.fields.FrustumVolume(clipMat);}} +return null;};x3dom.Viewarea.prototype.getWCtoCCMatrix=function() +{var view=this.getViewMatrix();var proj=this.getProjectionMatrix();return proj.mult(view);};x3dom.Viewarea.prototype.getCCtoWCMatrix=function() +{var mat=this.getWCtoCCMatrix();return mat.inverse();};x3dom.Viewarea.prototype.calcViewRay=function(x,y,mat) +{var cctowc=mat?mat:this.getCCtoWCMatrix();var rx=x/(this._width-1.0)*2.0-1.0;var ry=(this._height-1.0-y)/(this._height-1.0)*2.0-1.0;var from=cctowc.multFullMatrixPnt(new x3dom.fields.SFVec3f(rx,ry,-1));var at=cctowc.multFullMatrixPnt(new x3dom.fields.SFVec3f(rx,ry,1));var dir=at.subtract(from);return new x3dom.fields.Ray(from,dir);};x3dom.Viewarea.prototype.showAll=function(axis) +{if(axis===undefined) +axis="negZ";var scene=this._scene;scene.updateVolume();var min=x3dom.fields.SFVec3f.copy(scene._lastMin);var max=x3dom.fields.SFVec3f.copy(scene._lastMax);var x="x",y="y",z="z";var sign=1;var to,from=new x3dom.fields.SFVec3f(0,0,-1);switch(axis){case"posX":sign=-1;case"negX":z="x";x="y";y="z";to=new x3dom.fields.SFVec3f(sign,0,0);break;case"posY":sign=-1;case"negY":z="y";x="z";y="x";to=new x3dom.fields.SFVec3f(0,sign,0);break;case"posZ":sign=-1;case"negZ":default:to=new x3dom.fields.SFVec3f(0,0,-sign);break;} +var viewpoint=scene.getViewpoint();var fov=viewpoint.getFieldOfView();var dia=max.subtract(min);var diaz2=dia[z]/2.0,tanfov2=Math.tan(fov/2.0);var dist1=(dia[y]/2.0)/tanfov2+diaz2;var dist2=(dia[x]/2.0)/tanfov2+diaz2;dia=min.add(dia.multiply(0.5));dia[z]+=sign*(dist1>dist2?dist1:dist2)*1.01;var quat=x3dom.fields.Quaternion.rotateFromTo(from,to);var viewmat=quat.toMatrix();viewmat=viewmat.mult(x3dom.fields.SFMatrix4f.translation(dia.negate()));this.animateTo(viewmat,viewpoint);};x3dom.Viewarea.prototype.fit=function(min,max,updateCenterOfRotation) +{if(updateCenterOfRotation===undefined){updateCenterOfRotation=true;} +var dia2=max.subtract(min).multiply(0.5);var center=min.add(dia2);var bsr=dia2.length();var viewpoint=this._scene.getViewpoint();var fov=viewpoint.getFieldOfView();var viewmat=x3dom.fields.SFMatrix4f.copy(this.getViewMatrix());var rightDir=new x3dom.fields.SFVec3f(viewmat._00,viewmat._01,viewmat._02);var upDir=new x3dom.fields.SFVec3f(viewmat._10,viewmat._11,viewmat._12);var viewDir=new x3dom.fields.SFVec3f(viewmat._20,viewmat._21,viewmat._22);var tanfov2=Math.tan(fov/2.0);var dist=bsr/tanfov2;var eyePos=center.add(viewDir.multiply(dist));viewmat._03=-rightDir.dot(eyePos);viewmat._13=-upDir.dot(eyePos);viewmat._23=-viewDir.dot(eyePos);if(updateCenterOfRotation){viewpoint.setCenterOfRotation(center);} +if(x3dom.isa(viewpoint,x3dom.nodeTypes.OrthoViewpoint)) +{viewpoint._vf.fieldOfView[0]=-dist;viewpoint._vf.fieldOfView[1]=-dist;viewpoint._vf.fieldOfView[2]=dist;viewpoint._vf.fieldOfView[3]=dist;viewpoint._projMatrix=null;this.animateTo(viewmat,viewpoint,0);} +else +{this.animateTo(viewmat,viewpoint);}};x3dom.Viewarea.prototype.resetView=function() +{var navi=this._scene.getNavigationInfo();if(navi._vf.transitionType[0].toLowerCase()!=="teleport"&&navi.getType()!=="game") +{this._mixer._beginTime=this._lastTS;this._mixer._endTime=this._lastTS+navi._vf.transitionTime;this._mixer.setBeginMatrix(this.getViewMatrix());var target=this._scene.getViewpoint();target.resetView();target=target.getViewMatrix().mult(target.getCurrentTransform().inverse());this._mixer.setEndMatrix(target);} +else +{this._scene.getViewpoint().resetView();} +this.resetNavHelpers();navi._heliUpdated=false;};x3dom.Viewarea.prototype.resetNavHelpers=function() +{this._rotMat=x3dom.fields.SFMatrix4f.identity();this._transMat=x3dom.fields.SFMatrix4f.identity();this._movement=new x3dom.fields.SFVec3f(0,0,0);this._needNavigationMatrixUpdate=true;};x3dom.Viewarea.prototype.uprightView=function() +{var mat=this.getViewMatrix().inverse();var from=mat.e3();var at=from.subtract(mat.e2());var up=new x3dom.fields.SFVec3f(0,1,0);var s=mat.e2().cross(up).normalize();var v=s.cross(up).normalize();at=from.add(v);mat=x3dom.fields.SFMatrix4f.lookAt(from,at,up);mat=mat.inverse();this.animateTo(mat,this._scene.getViewpoint());};x3dom.Viewarea.prototype.callEvtHandler=function(node,eventType,event) +{if(!node||!node._xmlNode) +return null;try{var attrib=node._xmlNode[eventType];if(typeof(attrib)==="function"){attrib.call(node._xmlNode,event);} +else{var funcStr=node._xmlNode.getAttribute(eventType);var func=new Function('event',funcStr);func.call(node._xmlNode,event);} +var list=node._listeners[event.type];if(list){for(var it=0;it0&&func!==undefined) +{for(i=0;i=0)&&navType==="lookat"&&this._pressX===x&&this._pressY===y) +{var step=(this._lastButton&2)?-1:1;var dist=this._pickingInfo.pickPos.subtract(this._from).length()/tDist;var laMat=new x3dom.fields.SFMatrix4f();laMat.setValues(this.getViewMatrix());laMat=laMat.inverse();var from=laMat.e3();var at=from.subtract(laMat.e2());var up=laMat.e1();dir=this._pickingInfo.pickPos.subtract(from);var len=dir.length();dir=dir.normalize();var newAt=from.addScaled(dir,len);var s=dir.cross(up).normalize();dir=s.cross(up).normalize();if(step<0){dist=(0.5+len+dist)*2;} +var newFrom=newAt.addScaled(dir,dist);laMat=x3dom.fields.SFMatrix4f.lookAt(newFrom,newAt,up);laMat=laMat.inverse();dist=newFrom.subtract(from).length();var dur=Math.max(0.5,Math.log((1+dist)/navi._vf.speed));this.animateTo(laMat,this._scene.getViewpoint(),dur);} +this._dx=0;this._dy=0;this._lastX=x;this._lastY=y;this._lastButton=buttonState;this._isMoving=false;};x3dom.Viewarea.prototype.onMouseOver=function(x,y,buttonState) +{this._dx=0;this._dy=0;this._lastButton=0;this._isMoving=false;this._lastX=x;this._lastY=y;this._deltaT=0;};x3dom.Viewarea.prototype.onMouseOut=function(x,y,buttonState) +{this._dx=0;this._dy=0;this._lastButton=0;this._isMoving=false;this._lastX=x;this._lastY=y;this._deltaT=0;var i;var affectedPointingSensorsList=this._doc._nodeBag.affectedPointingSensors;for(i=0;i=5&&navi._vf.typeParams[4]>0) +{var newDist=Math.min(zoomAmount,lastDirL-navi._vf.typeParams[4]);this._from=this._from.addScaled(lastDir,newDist);} +else +{var diff=zoomAmount-lastDirL+0.01;if(diff>=0){cor=cor.addScaled(lastDir,diff);viewpoint.setCenterOfRotation(cor);} +this._from=this._from.addScaled(lastDir,zoomAmount);} +this._from=this._from.addScaled(lastDir,zoomAmount);this._flyMat=x3dom.fields.SFMatrix4f.lookAt(this._from,cor,this._up);viewpoint.setView(this._flyMat.inverse());} +else if(buttonState&4) +{d=(this._scene._lastMax.subtract(this._scene._lastMin)).length();d=((d0) +{this._currentInputType=x3dom.InputTypes.INTERACTION;} +else +{this._currentInputType=x3dom.InputTypes.NAVIGATION;}};x3dom.Viewarea.prototype.getRenderMode=function() +{return this._points;};x3dom.Viewarea.prototype.getShadowedLights=function() +{var shadowedLights=[];var shadowIndex=0;var slights=this.getLights();for(var i=0;i0.0){shadowedLights[shadowIndex]=slights[i];shadowIndex++;}} +return shadowedLights;};x3dom.Viewarea.prototype.getShadowSplitDepths=function(numCascades,splitFactor,splitOffset,postProject,mat_proj) +{var logSplit;var practSplit=[];var viewPoint=this._scene.getViewpoint();var zNear=viewPoint.getNear();var zFar=viewPoint.getFar();practSplit[0]=zNear;zNear=zNear+splitOffset*(zFar-zNear)/10;for(var i=1;i1.0||xMax<-1.0){xMin=-1.0;xMax=1.0;}else{xMin=Math.max(xMin,-1.0);xMax=Math.min(xMax,1.0);} +if(yMin>1.0||yMax<-1.0){yMin=-1.0;yMax=1.0;}else{yMin=Math.max(yMin,-1.0);yMax=Math.min(yMax,1.0);} +if(zMin>1.0||zMax<-1.0){zMin=-1.0;zMax=1.0;}else{zMin=Math.max(zMin,-1.0);zMax=Math.min(zMax,1.0);} +var minValues=new x3dom.fields.SFVec3f(xMin,yMin,zMin);var maxValues=new x3dom.fields.SFVec3f(xMax,yMax,zMax);return new x3dom.fields.BoxVolume(minValues,maxValues);} +var frustumBB=clip(minFrustum,maxFrustum);var scaleX=2.0/(frustumBB.max.x-frustumBB.min.x);var scaleY=2.0/(frustumBB.max.y-frustumBB.min.y);var offsetX=-(scaleX*(frustumBB.max.x+frustumBB.min.x))/2.0;var offsetY=-(scaleY*(frustumBB.max.y+frustumBB.min.y))/2.0;var fittingMatrix=x3dom.fields.SFMatrix4f.identity();fittingMatrix._00=scaleX;fittingMatrix._11=scaleY;fittingMatrix._03=offsetX;fittingMatrix._13=offsetY;return fittingMatrix;};x3dom.Mesh=function(parent) +{this._parent=parent;this._vol=new x3dom.fields.BoxVolume();this._invalidate=true;this._numFaces=0;this._numCoords=0;this._primType='TRIANGLES';this._positions=[];this._normals=[];this._texCoords=[];this._colors=[];this._indices=[];this._positions[0]=[];this._normals[0]=[];this._texCoords[0]=[];this._colors[0]=[];this._indices[0]=[];};x3dom.Mesh.prototype._dynamicFields={};x3dom.Mesh.prototype._numPosComponents=3;x3dom.Mesh.prototype._numTexComponents=2;x3dom.Mesh.prototype._numColComponents=3;x3dom.Mesh.prototype._numNormComponents=3;x3dom.Mesh.prototype._lit=true;x3dom.Mesh.prototype._vol=null;x3dom.Mesh.prototype._invalidate=true;x3dom.Mesh.prototype._numFaces=0;x3dom.Mesh.prototype._numCoords=0;x3dom.Mesh.prototype.setMeshData=function(positions,normals,texCoords,colors,indices) +{this._positions[0]=positions;this._normals[0]=normals;this._texCoords[0]=texCoords;this._colors[0]=colors;this._indices[0]=indices;this._invalidate=true;this._numFaces=this._indices[0].length/3;this._numCoords=this._positions[0].length/3;};x3dom.Mesh.prototype.getVolume=function() +{if(this._invalidate==true&&!this._vol.isValid()) +{var coords=this._positions[0];var n=coords.length;if(n>3) +{var initVal=new x3dom.fields.SFVec3f(coords[0],coords[1],coords[2]);this._vol.setBounds(initVal,initVal);for(var i=3;icoords[i]){this._vol.min.x=coords[i];} +if(this._vol.min.y>coords[i+1]){this._vol.min.y=coords[i+1];} +if(this._vol.min.z>coords[i+2]){this._vol.min.z=coords[i+2];} +if(this._vol.max.xm)?this._posSize/3:m/3;num=3*((num-Math.floor(num)>0)?Math.floor(num+1):num);for(i=0;ix3dom.fields.Eps) +{for(i=0;i=0);if(k){this._indices[i]=indices.slice(i*MAX,(i+1)*MAX);}else{this._indices[i]=indices.slice(i*MAX);} +if(!isMultiInd){if(i){var m=i*MAX;for(var j=0,l=this._indices[i].length;j++i*MAX*3);};x3dom.Mesh.prototype.calcTexCoords=function(mode) +{this._texCoords[0]=[];if(mode.toLowerCase()==="sphere-local") +{for(var i=0,j=0,n=this._normals[0].length;i=dia.y) +{if(dia.x>=dia.z) +{S=0;T=dia.y>=dia.z?1:2;} +else +{S=2;T=0;}} +else +{if(dia.y>=dia.z) +{S=1;T=dia.x>=dia.z?0:2;} +else +{S=2;T=1;}} +var sDenom=1,tDenom=1;var sMin=0,tMin=0;switch(S){case 0:sDenom=dia.x;sMin=min.x;break;case 1:sDenom=dia.y;sMin=min.y;break;case 2:sDenom=dia.z;sMin=min.z;break;} +switch(T){case 0:tDenom=dia.x;tMin=min.x;break;case 1:tDenom=dia.y;tMin=min.y;break;case 2:tDenom=dia.z;tMin=min.z;break;} +for(var k=0,l=0,m=this._positions[0].length;k=16) +{if(!needTranspose){return new x3dom.fields.SFMatrix4f(arr[0],arr[1],arr[2],arr[3],arr[4],arr[5],arr[6],arr[7],arr[8],arr[9],arr[10],arr[11],arr[12],arr[13],arr[14],arr[15]);} +else{return new x3dom.fields.SFMatrix4f(arr[0],arr[4],arr[8],arr[12],arr[1],arr[5],arr[9],arr[13],arr[2],arr[6],arr[10],arr[14],arr[3],arr[7],arr[11],arr[15]);}} +else if(arr.length===6){return new x3dom.fields.SFMatrix4f(arr[0],arr[1],0,arr[4],arr[2],arr[3],0,arr[5],0,0,1,0,0,0,0,1);} +else{x3dom.debug.logWarning("SFMatrix4f - can't parse string: "+str);return x3dom.fields.SFMatrix4f.identity();}};x3dom.fields.SFMatrix4f.prototype.mult=function(that){return new x3dom.fields.SFMatrix4f(this._00*that._00+this._01*that._10+this._02*that._20+this._03*that._30,this._00*that._01+this._01*that._11+this._02*that._21+this._03*that._31,this._00*that._02+this._01*that._12+this._02*that._22+this._03*that._32,this._00*that._03+this._01*that._13+this._02*that._23+this._03*that._33,this._10*that._00+this._11*that._10+this._12*that._20+this._13*that._30,this._10*that._01+this._11*that._11+this._12*that._21+this._13*that._31,this._10*that._02+this._11*that._12+this._12*that._22+this._13*that._32,this._10*that._03+this._11*that._13+this._12*that._23+this._13*that._33,this._20*that._00+this._21*that._10+this._22*that._20+this._23*that._30,this._20*that._01+this._21*that._11+this._22*that._21+this._23*that._31,this._20*that._02+this._21*that._12+this._22*that._22+this._23*that._32,this._20*that._03+this._21*that._13+this._22*that._23+this._23*that._33,this._30*that._00+this._31*that._10+this._32*that._20+this._33*that._30,this._30*that._01+this._31*that._11+this._32*that._21+this._33*that._31,this._30*that._02+this._31*that._12+this._32*that._22+this._33*that._32,this._30*that._03+this._31*that._13+this._32*that._23+this._33*that._33);};x3dom.fields.SFMatrix4f.prototype.multMatrixPnt=function(vec){return new x3dom.fields.SFVec3f(this._00*vec.x+this._01*vec.y+this._02*vec.z+this._03,this._10*vec.x+this._11*vec.y+this._12*vec.z+this._13,this._20*vec.x+this._21*vec.y+this._22*vec.z+this._23);};x3dom.fields.SFMatrix4f.prototype.multMatrixVec=function(vec){return new x3dom.fields.SFVec3f(this._00*vec.x+this._01*vec.y+this._02*vec.z,this._10*vec.x+this._11*vec.y+this._12*vec.z,this._20*vec.x+this._21*vec.y+this._22*vec.z);};x3dom.fields.SFMatrix4f.prototype.multFullMatrixPnt=function(vec){var w=this._30*vec.x+this._31*vec.y+this._32*vec.z+this._33;if(w){w=1.0/w;} +return new x3dom.fields.SFVec3f((this._00*vec.x+this._01*vec.y+this._02*vec.z+this._03)*w,(this._10*vec.x+this._11*vec.y+this._12*vec.z+this._13)*w,(this._20*vec.x+this._21*vec.y+this._22*vec.z+this._23)*w);};x3dom.fields.SFMatrix4f.prototype.multMatrixPlane=function(plane){var normal=new x3dom.fields.SFVec3f(plane.x,plane.y,plane.z);var memberPnt=normal.multiply(-plane.w);memberPnt=this.multMatrixPnt(memberPnt);var invTranspose=this.inverse().transpose();normal=invTranspose.multMatrixVec(normal);var d=-normal.dot(memberPnt);return new x3dom.fields.SFVec4f(normal.x,normal.y,normal.z,d);};x3dom.fields.SFMatrix4f.prototype.transpose=function(){return new x3dom.fields.SFMatrix4f(this._00,this._10,this._20,this._30,this._01,this._11,this._21,this._31,this._02,this._12,this._22,this._32,this._03,this._13,this._23,this._33);};x3dom.fields.SFMatrix4f.prototype.negate=function(){return new x3dom.fields.SFMatrix4f(-this._00,-this._01,-this._02,-this._03,-this._10,-this._11,-this._12,-this._13,-this._20,-this._21,-this._22,-this._23,-this._30,-this._31,-this._32,-this._33);};x3dom.fields.SFMatrix4f.prototype.multiply=function(s){return new x3dom.fields.SFMatrix4f(s*this._00,s*this._01,s*this._02,s*this._03,s*this._10,s*this._11,s*this._12,s*this._13,s*this._20,s*this._21,s*this._22,s*this._23,s*this._30,s*this._31,s*this._32,s*this._33);};x3dom.fields.SFMatrix4f.prototype.add=function(that){return new x3dom.fields.SFMatrix4f(this._00+that._00,this._01+that._01,this._02+that._02,this._03+that._03,this._10+that._10,this._11+that._11,this._12+that._12,this._13+that._13,this._20+that._20,this._21+that._21,this._22+that._22,this._23+that._23,this._30+that._30,this._31+that._31,this._32+that._32,this._33+that._33);};x3dom.fields.SFMatrix4f.prototype.addScaled=function(that,s){return new x3dom.fields.SFMatrix4f(this._00+s*that._00,this._01+s*that._01,this._02+s*that._02,this._03+s*that._03,this._10+s*that._10,this._11+s*that._11,this._12+s*that._12,this._13+s*that._13,this._20+s*that._20,this._21+s*that._21,this._22+s*that._22,this._23+s*that._23,this._30+s*that._30,this._31+s*that._31,this._32+s*that._32,this._33+s*that._33);};x3dom.fields.SFMatrix4f.prototype.setValues=function(that){this._00=that._00;this._01=that._01;this._02=that._02;this._03=that._03;this._10=that._10;this._11=that._11;this._12=that._12;this._13=that._13;this._20=that._20;this._21=that._21;this._22=that._22;this._23=that._23;this._30=that._30;this._31=that._31;this._32=that._32;this._33=that._33;};x3dom.fields.SFMatrix4f.prototype.setValue=function(v1,v2,v3,v4){this._00=v1.x;this._01=v2.x;this._02=v3.x;this._10=v1.y;this._11=v2.y;this._12=v3.y;this._20=v1.z;this._21=v2.z;this._22=v3.z;this._30=0;this._31=0;this._32=0;if(arguments.length>3){this._03=v4.x;this._13=v4.y;this._23=v4.z;this._33=1;}};x3dom.fields.SFMatrix4f.prototype.setFromArray=function(a){this._00=a[0];this._01=a[4];this._02=a[8];this._03=a[12];this._10=a[1];this._11=a[5];this._12=a[9];this._13=a[13];this._20=a[2];this._21=a[6];this._22=a[10];this._23=a[14];this._30=a[3];this._31=a[7];this._32=a[11];this._33=a[15];};x3dom.fields.SFMatrix4f.prototype.toGL=function(){return[this._00,this._10,this._20,this._30,this._01,this._11,this._21,this._31,this._02,this._12,this._22,this._32,this._03,this._13,this._23,this._33];};x3dom.fields.SFMatrix4f.prototype.at=function(i,j){var field="_"+i+j;return this[field];};x3dom.fields.SFMatrix4f.prototype.sqrt=function(){var Y=x3dom.fields.SFMatrix4f.identity();var result=x3dom.fields.SFMatrix4f.copy(this);for(var i=0;i<6;i++) +{var iX=result.inverse();var iY=(i==0)?x3dom.fields.SFMatrix4f.identity():Y.inverse();var rd=result.det(),yd=Y.det();var g=Math.abs(Math.pow(rd*yd,-0.125));var ig=1.0/g;result=result.multiply(g);result=result.addScaled(iY,ig);result=result.multiply(0.5);Y=Y.multiply(g);Y=Y.addScaled(iX,ig);Y=Y.multiply(0.5);} +return result;};x3dom.fields.SFMatrix4f.prototype.normInfinity=function(){var t=0,m=0;if((t=Math.abs(this._00))>m){m=t;} +if((t=Math.abs(this._01))>m){m=t;} +if((t=Math.abs(this._02))>m){m=t;} +if((t=Math.abs(this._03))>m){m=t;} +if((t=Math.abs(this._10))>m){m=t;} +if((t=Math.abs(this._11))>m){m=t;} +if((t=Math.abs(this._12))>m){m=t;} +if((t=Math.abs(this._13))>m){m=t;} +if((t=Math.abs(this._20))>m){m=t;} +if((t=Math.abs(this._21))>m){m=t;} +if((t=Math.abs(this._22))>m){m=t;} +if((t=Math.abs(this._23))>m){m=t;} +if((t=Math.abs(this._30))>m){m=t;} +if((t=Math.abs(this._31))>m){m=t;} +if((t=Math.abs(this._32))>m){m=t;} +if((t=Math.abs(this._33))>m){m=t;} +return m;};x3dom.fields.SFMatrix4f.prototype.norm1_3x3=function(){var max=Math.abs(this._00)+ +Math.abs(this._10)+ +Math.abs(this._20);var t=0;if((t=Math.abs(this._01)+ +Math.abs(this._11)+ +Math.abs(this._21))>max){max=t;} +if((t=Math.abs(this._02)+ +Math.abs(this._12)+ +Math.abs(this._22))>max){max=t;} +return max;};x3dom.fields.SFMatrix4f.prototype.normInf_3x3=function(){var max=Math.abs(this._00)+ +Math.abs(this._01)+ +Math.abs(this._02);var t=0;if((t=Math.abs(this._10)+ +Math.abs(this._11)+ +Math.abs(this._12))>max){max=t;} +if((t=Math.abs(this._20)+ +Math.abs(this._21)+ +Math.abs(this._22))>max){max=t;} +return max;};x3dom.fields.SFMatrix4f.prototype.adjointT_3x3=function(){var result=x3dom.fields.SFMatrix4f.identity();result._00=this._11*this._22-this._12*this._21;result._01=this._12*this._20-this._10*this._22;result._02=this._10*this._21-this._11*this._20;result._10=this._21*this._02-this._22*this._01;result._11=this._22*this._00-this._20*this._02;result._12=this._20*this._01-this._21*this._00;result._20=this._01*this._12-this._02*this._11;result._21=this._02*this._10-this._00*this._12;result._22=this._00*this._11-this._01*this._10;return result;};x3dom.fields.SFMatrix4f.prototype.equals=function(that){var eps=0.000000000001;return Math.abs(this._00-that._00)4){m=x3dom.fields.SFMatrix4f.translation(center.negate());m=m.mult(this);var c=x3dom.fields.SFMatrix4f.translation(center);m=m.mult(c);} +else{m=x3dom.fields.SFMatrix4f.copy(this);} +var flip=m.decompose(translation,rotation,scaleFactor,scaleOrientation);scaleFactor.setValues(scaleFactor.multiply(flip));};x3dom.fields.SFMatrix4f.prototype.decompose=function(t,r,s,so) +{var A=x3dom.fields.SFMatrix4f.copy(this);var Q=x3dom.fields.SFMatrix4f.identity(),S=x3dom.fields.SFMatrix4f.identity(),SO=x3dom.fields.SFMatrix4f.identity();t.x=A._03;t.y=A._13;t.z=A._23;A._03=0.0;A._13=0.0;A._23=0.0;A._30=0.0;A._31=0.0;A._32=0.0;var det=A.polarDecompose(Q,S);var f=1.0;if(det<0.0){Q=Q.negate();f=-1.0;} +r.setValue(Q);S.spectralDecompose(SO,s);so.setValue(SO);return f;};x3dom.fields.SFMatrix4f.prototype.polarDecompose=function(Q,S) +{var TOL=0.000000000001;var Mk=this.transpose();var Ek=x3dom.fields.SFMatrix4f.identity();var Mk_one=Mk.norm1_3x3();var Mk_inf=Mk.normInf_3x3();var MkAdjT;var MkAdjT_one,MkAdjT_inf;var Ek_one,Mk_det;do +{MkAdjT=Mk.adjointT_3x3();Mk_det=Mk._00*MkAdjT._00+ +Mk._01*MkAdjT._01+ +Mk._02*MkAdjT._02;if(Mk_det==0.0) +{x3dom.debug.logWarning("polarDecompose: Mk_det == 0.0");break;} +MkAdjT_one=MkAdjT.norm1_3x3();MkAdjT_inf=MkAdjT.normInf_3x3();var gamma=Math.sqrt(Math.sqrt((MkAdjT_one*MkAdjT_inf)/(Mk_one*Mk_inf))/Math.abs(Mk_det));var g1=0.5*gamma;var g2=0.5/(gamma*Mk_det);Ek.setValues(Mk);Mk=Mk.multiply(g1);Mk=Mk.addScaled(MkAdjT,g2);Ek=Ek.addScaled(Mk,-1.0);Ek_one=Ek.norm1_3x3();Mk_one=Mk.norm1_3x3();Mk_inf=Mk.normInf_3x3();}while(Ek_one>(Mk_one*TOL));Q.setValues(Mk.transpose());S.setValues(Mk.mult(this));for(var i=0;i<3;++i) +{for(var j=i;j<3;++j) +{S['_'+j+i]=0.5*(S['_'+j+i]+S['_'+i+j]);S['_'+i+j]=0.5*(S['_'+j+i]+S['_'+i+j]);}} +return Mk_det;};x3dom.fields.SFMatrix4f.prototype.spectralDecompose=function(SO,k) +{var next=[1,2,0];var maxIterations=20;var diag=[this._00,this._11,this._22];var offDiag=[this._12,this._20,this._01];for(var iter=0;iter=0;--i) +{var p=next[i];var q=next[p];var absOffDiag=Math.abs(offDiag[i]);var g=100.0*absOffDiag;if(absOffDiag>0.0) +{var t=0,h=diag[q]-diag[p];var absh=Math.abs(h);if(absh+g==absh) +{t=offDiag[i]/h;} +else +{var theta=0.5*h/offDiag[i];t=1.0/(Math.abs(theta)+Math.sqrt(theta*theta+1.0));t=theta<0.0?-t:t;} +var c=1.0/Math.sqrt(t*t+1.0);var s=t*c;var tau=s/(c+1.0);var ta=t*offDiag[i];offDiag[i]=0.0;diag[p]-=ta;diag[q]+=ta;var offDiagq=offDiag[q];offDiag[q]-=s*(offDiag[p]+tau*offDiagq);offDiag[p]+=s*(offDiagq-tau*offDiag[p]);for(var j=2;j>=0;--j) +{var a=SO['_'+j+p];var b=SO['_'+j+q];SO['_'+j+p]-=s*(b+tau*a);SO['_'+j+q]+=s*(a-tau*b);}}}} +k.x=diag[0];k.y=diag[1];k.z=diag[2];};x3dom.fields.SFMatrix4f.prototype.log=function(){var maxiter=12;var eps=1e-12;var A=x3dom.fields.SFMatrix4f.copy(this),Z=x3dom.fields.SFMatrix4f.copy(this);Z._00-=1;Z._11-=1;Z._22-=1;Z._33-=1;var k=0;while(Z.normInfinity()>0.5) +{A=A.sqrt();Z.setValues(A);Z._00-=1;Z._11-=1;Z._22-=1;Z._33-=1;k++;} +A._00-=1;A._11-=1;A._22-=1;A._33-=1;A=A.negate();Z.setValues(A);var result=x3dom.fields.SFMatrix4f.copy(A);var i=1;while(Z.normInfinity()>eps&&i0.0001){theta_1=-Math.asin(this._20);theta_2=Math.PI-theta_1;cos_theta_1=Math.cos(theta_1);cos_theta_2=Math.cos(theta_2);psi_1=Math.atan2(this._21/cos_theta_1,this._22/cos_theta_1);psi_2=Math.atan2(this._21/cos_theta_2,this._22/cos_theta_2);phi_1=Math.atan2(this._10/cos_theta_1,this._00/cos_theta_1);phi_2=Math.atan2(this._10/cos_theta_2,this._00/cos_theta_2);return[psi_1,theta_1,phi_1,psi_2,theta_2,phi_2];} +else{phi=0;if(this._20==-1.0){theta=Math.PI/2.0;psi=phi+Math.atan2(this._01,this._02);} +else{theta=-(Math.PI/2.0);psi=-phi+Math.atan2(-this._01,-this._02);} +return[psi,theta,phi,psi,theta,phi];}};x3dom.fields.SFMatrix4f.prototype.toString=function(){return'\n'+ +this._00.toFixed(6)+', '+this._01.toFixed(6)+', '+ +this._02.toFixed(6)+', '+this._03.toFixed(6)+', \n'+ +this._10.toFixed(6)+', '+this._11.toFixed(6)+', '+ +this._12.toFixed(6)+', '+this._13.toFixed(6)+', \n'+ +this._20.toFixed(6)+', '+this._21.toFixed(6)+', '+ +this._22.toFixed(6)+', '+this._23.toFixed(6)+', \n'+ +this._30.toFixed(6)+', '+this._31.toFixed(6)+', '+ +this._32.toFixed(6)+', '+this._33.toFixed(6);};x3dom.fields.SFMatrix4f.prototype.setValueByStr=function(str){var needTranspose=false;var val=/matrix.*\((.+)\)/;if(val.exec(str)){str=RegExp.$1;needTranspose=true;} +var arr=Array.map(str.split(/[,\s]+/),function(n){return+n;});if(arr.length>=16) +{if(!needTranspose){this._00=arr[0];this._01=arr[1];this._02=arr[2];this._03=arr[3];this._10=arr[4];this._11=arr[5];this._12=arr[6];this._13=arr[7];this._20=arr[8];this._21=arr[9];this._22=arr[10];this._23=arr[11];this._30=arr[12];this._31=arr[13];this._32=arr[14];this._33=arr[15];} +else{this._00=arr[0];this._01=arr[4];this._02=arr[8];this._03=arr[12];this._10=arr[1];this._11=arr[5];this._12=arr[9];this._13=arr[13];this._20=arr[2];this._21=arr[6];this._22=arr[10];this._23=arr[14];this._30=arr[3];this._31=arr[7];this._32=arr[11];this._33=arr[15];}} +else if(arr.length===6){this._00=arr[0];this._01=arr[1];this._02=0;this._03=arr[4];this._10=arr[2];this._11=arr[3];this._12=0;this._13=arr[5];this._20=0;this._21=0;this._22=1;this._23=0;this._30=0;this._31=0;this._32=0;this._33=1;} +else{x3dom.debug.logWarning("SFMatrix4f - can't parse string: "+str);} +return this;};x3dom.fields.SFVec2f=function(x,y){if(arguments.length===0){this.x=0;this.y=0;} +else{this.x=x;this.y=y;}};x3dom.fields.SFVec2f.copy=function(v){return new x3dom.fields.SFVec2f(v.x,v.y);};x3dom.fields.SFVec2f.parse=function(str){var m=/^\s*([+\-]?\d*\.*\d*[eE]?[+\-]?\d*?)\s*,?\s*([+\-]?\d*\.*\d*[eE]?[+\-]?\d*?)\s*$/.exec(str);return new x3dom.fields.SFVec2f(+m[1],+m[2]);};x3dom.fields.SFVec2f.prototype.copy=function(){return x3dom.fields.SFVec2f.copy(this);};x3dom.fields.SFVec2f.prototype.setValues=function(that){this.x=that.x;this.y=that.y;};x3dom.fields.SFVec2f.prototype.at=function(i){switch(i){case 0:return this.x;case 1:return this.y;default:return this.x;}};x3dom.fields.SFVec2f.prototype.add=function(that){return new x3dom.fields.SFVec2f(this.x+that.x,this.y+that.y);};x3dom.fields.SFVec2f.prototype.subtract=function(that){return new x3dom.fields.SFVec2f(this.x-that.x,this.y-that.y);};x3dom.fields.SFVec2f.prototype.negate=function(){return new x3dom.fields.SFVec2f(-this.x,-this.y);};x3dom.fields.SFVec2f.prototype.dot=function(that){return this.x*that.x+this.y*that.y;};x3dom.fields.SFVec2f.prototype.reflect=function(n){var d2=this.dot(n)*2;return new x3dom.fields.SFVec2f(this.x-d2*n.x,this.y-d2*n.y);};x3dom.fields.SFVec2f.prototype.normalize=function(){var n=this.length();if(n){n=1.0/n;} +return new x3dom.fields.SFVec2f(this.x*n,this.y*n);};x3dom.fields.SFVec2f.prototype.multComponents=function(that){return new x3dom.fields.SFVec2f(this.x*that.x,this.y*that.y);};x3dom.fields.SFVec2f.prototype.multiply=function(n){return new x3dom.fields.SFVec2f(this.x*n,this.y*n);};x3dom.fields.SFVec2f.prototype.divide=function(n){var denom=n?(1.0/n):1.0;return new x3dom.fields.SFVec2f(this.x*denom,this.y*denom);};x3dom.fields.SFVec2f.prototype.equals=function(that,eps){return Math.abs(this.x-that.x)x3dom.fields.Eps) +{var s=Math.sin(a/2)/t;var c=Math.cos(a/2);return new x3dom.fields.Quaternion(axis.x*s,axis.y*s,axis.z*s,c);} +else +{return new x3dom.fields.Quaternion(0,0,0,1);}};x3dom.fields.Quaternion.prototype.copy=function(){return x3dom.fields.Quaternion(this);};x3dom.fields.Quaternion.prototype.toMatrix=function(){var xx=this.x*this.x;var xy=this.x*this.y;var xz=this.x*this.z;var yy=this.y*this.y;var yz=this.y*this.z;var zz=this.z*this.z;var wx=this.w*this.x;var wy=this.w*this.y;var wz=this.w*this.z;return new x3dom.fields.SFMatrix4f(1-2*(yy+zz),2*(xy-wz),2*(xz+wy),0,2*(xy+wz),1-2*(xx+zz),2*(yz-wx),0,2*(xz-wy),2*(yz+wx),1-2*(xx+yy),0,0,0,0,1);};x3dom.fields.Quaternion.prototype.toAxisAngle=function() +{var x=0,y=0,z=0;var s=0,a=0;var that=this;if(this.w>1) +{that=x3dom.fields.Quaternion.normalize(this);} +a=2*Math.acos(that.w);s=Math.sqrt(1-that.w*that.w);if(s==0) +{x=that.x;y=that.y;z=that.z;} +else +{x=that.x/s;y=that.y/s;z=that.z/s;} +return[new x3dom.fields.SFVec3f(x,y,z),a];};x3dom.fields.Quaternion.prototype.angle=function() +{return 2*Math.acos(this.w);};x3dom.fields.Quaternion.prototype.setValue=function(matrix) +{var tr,s=1;var qt=[0,0,0];var i=0,j=0,k=0;var nxt=[1,2,0];tr=matrix._00+matrix._11+matrix._22;if(tr>0.0) +{s=Math.sqrt(tr+1.0);this.w=s*0.5;s=0.5/s;this.x=(matrix._21-matrix._12)*s;this.y=(matrix._02-matrix._20)*s;this.z=(matrix._10-matrix._01)*s;} +else +{if(matrix._11>matrix._00){i=1;} +else{i=0;} +if(matrix._22>matrix.at(i,i)){i=2;} +j=nxt[i];k=nxt[j];s=Math.sqrt(matrix.at(i,i)-(matrix.at(j,j)+matrix.at(k,k))+1.0);qt[i]=s*0.5;s=0.5/s;this.w=(matrix.at(k,j)-matrix.at(j,k))*s;qt[j]=(matrix.at(j,i)+matrix.at(i,j))*s;qt[k]=(matrix.at(k,i)+matrix.at(i,k))*s;this.x=qt[0];this.y=qt[1];this.z=qt[2];} +if(this.w>1.0||this.w<-1.0) +{var errThreshold=1+(x3dom.fields.Eps*100);if(this.w>errThreshold||this.w<-errThreshold) +{x3dom.debug.logInfo("MatToQuat: BUG: |quat[4]| ("+this.w+") >> 1.0 !");} +if(this.w>1.0){this.w=1.0;} +else{this.w=-1.0;}}};x3dom.fields.Quaternion.prototype.setFromEuler=function(alpha,beta,gamma){var sx=Math.sin(alpha*0.5);var cx=Math.cos(alpha*0.5);var sy=Math.sin(beta*0.5);var cy=Math.cos(beta*0.5);var sz=Math.sin(gamma*0.5);var cz=Math.cos(gamma*0.5);this.x=(sx*cy*cz)-(cx*sy*sz);this.y=(cx*sy*cz)+(sx*cy*sz);this.z=(cx*cy*sz)-(sx*sy*cz);this.w=(cx*cy*cz)+(sx*sy*sz);};x3dom.fields.Quaternion.prototype.dot=function(that){return this.x*that.x+this.y*that.y+this.z*that.z+this.w*that.w;};x3dom.fields.Quaternion.prototype.add=function(that){return new x3dom.fields.Quaternion(this.x+that.x,this.y+that.y,this.z+that.z,this.w+that.w);};x3dom.fields.Quaternion.prototype.subtract=function(that){return new x3dom.fields.Quaternion(this.x-that.x,this.y-that.y,this.z-that.z,this.w-that.w);};x3dom.fields.Quaternion.prototype.setValues=function(that){this.x=that.x;this.y=that.y;this.z=that.z;this.w=that.w;};x3dom.fields.Quaternion.prototype.equals=function(that,eps){return(this.dot(that)>=1.0-eps);};x3dom.fields.Quaternion.prototype.multScalar=function(s){return new x3dom.fields.Quaternion(this.x*s,this.y*s,this.z*s,this.w*s);};x3dom.fields.Quaternion.prototype.normalize=function(that){var d2=this.dot(that);var id=1.0;if(d2){id=1.0/Math.sqrt(d2);} +return new x3dom.fields.Quaternion(this.x*id,this.y*id,this.z*id,this.w*id);};x3dom.fields.Quaternion.prototype.negate=function(){return new x3dom.fields.Quaternion(-this.x,-this.y,-this.z,-this.w);};x3dom.fields.Quaternion.prototype.inverse=function(){return new x3dom.fields.Quaternion(-this.x,-this.y,-this.z,this.w);};x3dom.fields.Quaternion.prototype.slerp=function(that,t){var cosom=this.dot(that);var rot1;if(cosom<0.0) +{cosom=-cosom;rot1=that.negate();} +else +{rot1=new x3dom.fields.Quaternion(that.x,that.y,that.z,that.w);} +var scalerot0,scalerot1;if((1.0-cosom)>0.00001) +{var omega=Math.acos(cosom);var sinom=Math.sin(omega);scalerot0=Math.sin((1.0-t)*omega)/sinom;scalerot1=Math.sin(t*omega)/sinom;} +else +{scalerot0=1.0-t;scalerot1=t;} +return this.multScalar(scalerot0).add(rot1.multScalar(scalerot1));};x3dom.fields.Quaternion.rotateFromTo=function(fromVec,toVec){var from=fromVec.normalize();var to=toVec.normalize();var cost=from.dot(to);if(cost>0.99999) +{return new x3dom.fields.Quaternion(0,0,0,1);} +else if(cost<-0.99999) +{var cAxis=new x3dom.fields.SFVec3f(1,0,0);var tmp=from.cross(cAxis);if(tmp.length()<0.00001) +{cAxis.x=0;cAxis.y=1;cAxis.z=0;tmp=from.cross(cAxis);} +tmp=tmp.normalize();return x3dom.fields.Quaternion.axisAngle(tmp,Math.PI);} +var axis=fromVec.cross(toVec);axis=axis.normalize();var s=Math.sqrt(0.5*(1.0-cost));axis=axis.multiply(s);s=Math.sqrt(0.5*(1.0+cost));return new x3dom.fields.Quaternion(axis.x,axis.y,axis.z,s);};x3dom.fields.Quaternion.prototype.toGL=function(){var val=this.toAxisAngle();return[val[0].x,val[0].y,val[0].z,val[1]];};x3dom.fields.Quaternion.prototype.toString=function(){return this.x+" "+this.y+" "+this.z+", "+this.w;};x3dom.fields.Quaternion.prototype.setValueByStr=function(str){var m=/^\s*([+\-]?\d*\.*\d*[eE]?[+\-]?\d*?)\s*,?\s*([+\-]?\d*\.*\d*[eE]?[+\-]?\d*?)\s*,?\s*([+\-]?\d*\.*\d*[eE]?[+\-]?\d*?)\s*,?\s*([+\-]?\d*\.*\d*[eE]?[+\-]?\d*?)\s*$/.exec(str);var quat=x3dom.fields.Quaternion.axisAngle(new x3dom.fields.SFVec3f(+m[1],+m[2],+m[3]),+m[4]);this.x=quat.x;this.y=quat.y;this.z=quat.z;this.w=quat.w;return this;};x3dom.fields.SFColor=function(r,g,b){if(arguments.length===0){this.r=0;this.g=0;this.b=0;} +else{this.r=r;this.g=g;this.b=b;}};x3dom.fields.SFColor.parse=function(str){try{var m=/^\s*([+\-]?\d*\.*\d*[eE]?[+\-]?\d*?)\s*,?\s*([+\-]?\d*\.*\d*[eE]?[+\-]?\d*?)\s*,?\s*([+\-]?\d*\.*\d*[eE]?[+\-]?\d*?)\s*$/.exec(str);return new x3dom.fields.SFColor(+m[1],+m[2],+m[3]);} +catch(e){return x3dom.fields.SFColor.colorParse(str);}};x3dom.fields.SFColor.copy=function(that){return new x3dom.fields.SFColor(that.r,that.g,that.b);};x3dom.fields.SFColor.prototype.copy=function(){return x3dom.fields.SFColor.copy(this);};x3dom.fields.SFColor.prototype.setHSV=function(h,s,v){x3dom.debug.logWarning("SFColor.setHSV() NYI");};x3dom.fields.SFColor.prototype.getHSV=function(){var h=0,s=0,v=0;x3dom.debug.logWarning("SFColor.getHSV() NYI");return[h,s,v];};x3dom.fields.SFColor.prototype.setValues=function(color){this.r=color.r;this.g=color.g;this.b=color.b;};x3dom.fields.SFColor.prototype.equals=function(that,eps){return Math.abs(this.r-that.r)>>0;};x3dom.fields.SFColorRGBA.colorParse=function(color){var red=0,green=0,blue=0,alpha=0;var color_names={aliceblue:'f0f8ff',antiquewhite:'faebd7',aqua:'00ffff',aquamarine:'7fffd4',azure:'f0ffff',beige:'f5f5dc',bisque:'ffe4c4',black:'000000',blanchedalmond:'ffebcd',blue:'0000ff',blueviolet:'8a2be2',brown:'a52a2a',burlywood:'deb887',cadetblue:'5f9ea0',chartreuse:'7fff00',chocolate:'d2691e',coral:'ff7f50',cornflowerblue:'6495ed',cornsilk:'fff8dc',crimson:'dc143c',cyan:'00ffff',darkblue:'00008b',darkcyan:'008b8b',darkgoldenrod:'b8860b',darkgray:'a9a9a9',darkgreen:'006400',darkkhaki:'bdb76b',darkmagenta:'8b008b',darkolivegreen:'556b2f',darkorange:'ff8c00',darkorchid:'9932cc',darkred:'8b0000',darksalmon:'e9967a',darkseagreen:'8fbc8f',darkslateblue:'483d8b',darkslategray:'2f4f4f',darkturquoise:'00ced1',darkviolet:'9400d3',deeppink:'ff1493',deepskyblue:'00bfff',dimgray:'696969',dodgerblue:'1e90ff',feldspar:'d19275',firebrick:'b22222',floralwhite:'fffaf0',forestgreen:'228b22',fuchsia:'ff00ff',gainsboro:'dcdcdc',ghostwhite:'f8f8ff',gold:'ffd700',goldenrod:'daa520',gray:'808080',green:'008000',greenyellow:'adff2f',honeydew:'f0fff0',hotpink:'ff69b4',indianred:'cd5c5c',indigo:'4b0082',ivory:'fffff0',khaki:'f0e68c',lavender:'e6e6fa',lavenderblush:'fff0f5',lawngreen:'7cfc00',lemonchiffon:'fffacd',lightblue:'add8e6',lightcoral:'f08080',lightcyan:'e0ffff',lightgoldenrodyellow:'fafad2',lightgrey:'d3d3d3',lightgreen:'90ee90',lightpink:'ffb6c1',lightsalmon:'ffa07a',lightseagreen:'20b2aa',lightskyblue:'87cefa',lightslateblue:'8470ff',lightslategray:'778899',lightsteelblue:'b0c4de',lightyellow:'ffffe0',lime:'00ff00',limegreen:'32cd32',linen:'faf0e6',magenta:'ff00ff',maroon:'800000',mediumaquamarine:'66cdaa',mediumblue:'0000cd',mediumorchid:'ba55d3',mediumpurple:'9370d8',mediumseagreen:'3cb371',mediumslateblue:'7b68ee',mediumspringgreen:'00fa9a',mediumturquoise:'48d1cc',mediumvioletred:'c71585',midnightblue:'191970',mintcream:'f5fffa',mistyrose:'ffe4e1',moccasin:'ffe4b5',navajowhite:'ffdead',navy:'000080',oldlace:'fdf5e6',olive:'808000',olivedrab:'6b8e23',orange:'ffa500',orangered:'ff4500',orchid:'da70d6',palegoldenrod:'eee8aa',palegreen:'98fb98',paleturquoise:'afeeee',palevioletred:'d87093',papayawhip:'ffefd5',peachpuff:'ffdab9',peru:'cd853f',pink:'ffc0cb',plum:'dda0dd',powderblue:'b0e0e6',purple:'800080',red:'ff0000',rosybrown:'bc8f8f',royalblue:'4169e1',saddlebrown:'8b4513',salmon:'fa8072',sandybrown:'f4a460',seagreen:'2e8b57',seashell:'fff5ee',sienna:'a0522d',silver:'c0c0c0',skyblue:'87ceeb',slateblue:'6a5acd',slategray:'708090',snow:'fffafa',springgreen:'00ff7f',steelblue:'4682b4',tan:'d2b48c',teal:'008080',thistle:'d8bfd8',tomato:'ff6347',turquoise:'40e0d0',violet:'ee82ee',violetred:'d02090',wheat:'f5deb3',white:'ffffff',whitesmoke:'f5f5f5',yellow:'ffff00',yellowgreen:'9acd32'};if(color_names[color]){color="#"+color_names[color]+"ff";} +if(color.substr&&color.substr(0,1)==="#"){color=color.substr(1);var len=color.length;if(len===8){red=parseInt("0x"+color.substr(0,2),16)/255.0;green=parseInt("0x"+color.substr(2,2),16)/255.0;blue=parseInt("0x"+color.substr(4,2),16)/255.0;alpha=parseInt("0x"+color.substr(6,2),16)/255.0;} +else if(len===6){red=parseInt("0x"+color.substr(0,2),16)/255.0;green=parseInt("0x"+color.substr(2,2),16)/255.0;blue=parseInt("0x"+color.substr(4,2),16)/255.0;alpha=1.0;} +else if(len===4){red=parseInt("0x"+color.substr(0,1),16)/15.0;green=parseInt("0x"+color.substr(1,1),16)/15.0;blue=parseInt("0x"+color.substr(2,1),16)/15.0;alpha=parseInt("0x"+color.substr(3,1),16)/15.0;} +else if(len===3){red=parseInt("0x"+color.substr(0,1),16)/15.0;green=parseInt("0x"+color.substr(1,1),16)/15.0;blue=parseInt("0x"+color.substr(2,1),16)/15.0;alpha=1.0;}} +return new x3dom.fields.SFColorRGBA(red,green,blue,alpha);};x3dom.fields.SFImage=function(w,h,c,arr){if(arguments.length===0||!(arr&&arr.map)){this.width=0;this.height=0;this.comp=0;this.array=[];} +else{this.width=w;this.height=h;this.comp=c;var that=this.array;arr.map(function(v){that.push(v);},this.array);}};x3dom.fields.SFImage.parse=function(str){var img=new x3dom.fields.SFImage();img.setValueByStr(str);return img;};x3dom.fields.SFImage.copy=function(that){var destination=new x3dom.fields.SFImage();destination.width=that.width;destination.height=that.height;destination.comp=that.comp;destination.setPixels(that.array);return destination;};x3dom.fields.SFImage.prototype.copy=function(){return x3dom.fields.SFImage.copy(this);};x3dom.fields.SFImage.prototype.setValueByStr=function(str){var mc=str.match(/(\w+)/g);var n=mc.length;var c2=0;var hex="0123456789ABCDEF";this.array=[];if(n>2){this.width=+mc[0];this.height=+mc[1];this.comp=+mc[2];c2=2*this.comp;}else{this.width=0;this.height=0;this.comp=0;return;} +var len,i;for(i=3;i>8&255;g=inp&255;this.array.push(r,g);} +else if(this.comp===3){r=inp>>16&255;g=inp>>8&255;b=inp&255;this.array.push(r,g,b);} +else if(this.comp===4){r=inp>>24&255;g=inp>>16&255;b=inp>>8&255;a=inp&255;this.array.push(r,g,b,a);}} +else if(mc[i].substr(1,1).toLowerCase()==="x"){mc[i]=mc[i].substr(2);len=mc[i].length;if(len===c2){if(this.comp===1){r=parseInt("0x"+mc[i].substr(0,2),16);this.array.push(r);} +else if(this.comp===2){r=parseInt("0x"+mc[i].substr(0,2),16);g=parseInt("0x"+mc[i].substr(2,2),16);this.array.push(r,g);} +else if(this.comp===3){r=parseInt("0x"+mc[i].substr(0,2),16);g=parseInt("0x"+mc[i].substr(2,2),16);b=parseInt("0x"+mc[i].substr(4,2),16);this.array.push(r,g,b);} +else if(this.comp===4){r=parseInt("0x"+mc[i].substr(0,2),16);g=parseInt("0x"+mc[i].substr(2,2),16);b=parseInt("0x"+mc[i].substr(4,2),16);a=parseInt("0x"+mc[i].substr(6,2),16);this.array.push(r,g,b,a);}}}}};x3dom.fields.SFImage.prototype.setPixel=function(x,y,color){var startIdx=(y*this.width+x)*this.comp;if(this.comp===1&&startIdx0);} +return false;};x3dom.fields.MFNode.prototype.addLink=function(node){this.nodes.push(node);return true;};x3dom.fields.MFNode.prototype.rmLink=function(node){for(var i=0,n=this.nodes.length;ix3dom.fields.Eps) +{r=1.0/this.dir.x;te=(low.x-this.pos.x)*r;tl=(high.x-this.pos.x)*r;if(tlisect){isect=te;}} +else if(this.dir.x<-x3dom.fields.Eps) +{r=1.0/this.dir.x;te=(high.x-this.pos.x)*r;tl=(low.x-this.pos.x)*r;if(tlisect){isect=te;}} +else if(this.pos.xhigh.x) +{return false;} +if(this.dir.y>x3dom.fields.Eps) +{r=1.0/this.dir.y;te=(low.y-this.pos.y)*r;tl=(high.y-this.pos.y)*r;if(tlisect){isect=te;} +if(isect-out>=x3dom.fields.Eps){return false;}} +else if(this.dir.y<-x3dom.fields.Eps) +{r=1.0/this.dir.y;te=(high.y-this.pos.y)*r;tl=(low.y-this.pos.y)*r;if(tlisect){isect=te;} +if(isect-out>=x3dom.fields.Eps){return false;}} +else if(this.pos.yhigh.y) +{return false;} +if(this.dir.z>x3dom.fields.Eps) +{r=1.0/this.dir.z;te=(low.z-this.pos.z)*r;tl=(high.z-this.pos.z)*r;if(tlisect){isect=te;}} +else if(this.dir.z<-x3dom.fields.Eps) +{r=1.0/this.dir.z;te=(high.z-this.pos.z)*r;tl=(low.z-this.pos.z)*r;if(tlisect){isect=te;}} +else if(this.pos.zhigh.z) +{return false;} +this.enter=isect;this.exit=out;return(isect-outmin.x){this.min.x=min.x;} +if(this.min.y>min.y){this.min.y=min.y;} +if(this.min.z>min.z){this.min.z=min.z;} +if(this.max.x=b){xmax+=a;xmin+=b;} +else{xmax+=b;xmin+=a;} +a=this.max.y*m._01;b=this.min.y*m._01;if(a>=b){xmax+=a;xmin+=b;} +else{xmax+=b;xmin+=a;} +a=this.max.z*m._02;b=this.min.z*m._02;if(a>=b){xmax+=a;xmin+=b;} +else{xmax+=b;xmin+=a;} +a=this.max.x*m._10;b=this.min.x*m._10;if(a>=b){ymax+=a;ymin+=b;} +else{ymax+=b;ymin+=a;} +a=this.max.y*m._11;b=this.min.y*m._11;if(a>=b){ymax+=a;ymin+=b;} +else{ymax+=b;ymin+=a;} +a=this.max.z*m._12;b=this.min.z*m._12;if(a>=b){ymax+=a;ymin+=b;} +else{ymax+=b;ymin+=a;} +a=this.max.x*m._20;b=this.min.x*m._20;if(a>=b){zmax+=a;zmin+=b;} +else{zmax+=b;zmin+=a;} +a=this.max.y*m._21;b=this.min.y*m._21;if(a>=b){zmax+=a;zmin+=b;} +else{zmax+=b;zmin+=a;} +a=this.max.z*m._22;b=this.min.z*m._22;if(a>=b){zmax+=a;zmin+=b;} +else{zmax+=b;zmin+=a;} +this.min.x=xmin;this.min.y=ymin;this.min.z=zmin;this.max.x=xmax;this.max.y=ymax;this.max.z=zmax;this.updateInternals();};x3dom.fields.BoxVolume.prototype.transformFrom=function(m,other) +{var xmin,ymin,zmin;var xmax,ymax,zmax;xmin=xmax=m._03;ymin=ymax=m._13;zmin=zmax=m._23;var a=other.max.x*m._00;var b=other.min.x*m._00;if(a>=b){xmax+=a;xmin+=b;} +else{xmax+=b;xmin+=a;} +a=other.max.y*m._01;b=other.min.y*m._01;if(a>=b){xmax+=a;xmin+=b;} +else{xmax+=b;xmin+=a;} +a=other.max.z*m._02;b=other.min.z*m._02;if(a>=b){xmax+=a;xmin+=b;} +else{xmax+=b;xmin+=a;} +a=other.max.x*m._10;b=other.min.x*m._10;if(a>=b){ymax+=a;ymin+=b;} +else{ymax+=b;ymin+=a;} +a=other.max.y*m._11;b=other.min.y*m._11;if(a>=b){ymax+=a;ymin+=b;} +else{ymax+=b;ymin+=a;} +a=other.max.z*m._12;b=other.min.z*m._12;if(a>=b){ymax+=a;ymin+=b;} +else{ymax+=b;ymin+=a;} +a=other.max.x*m._20;b=other.min.x*m._20;if(a>=b){zmax+=a;zmin+=b;} +else{zmax+=b;zmin+=a;} +a=other.max.y*m._21;b=other.min.y*m._21;if(a>=b){zmax+=a;zmin+=b;} +else{zmax+=b;zmin+=a;} +a=other.max.z*m._22;b=other.min.z*m._22;if(a>=b){zmax+=a;zmin+=b;} +else{zmax+=b;zmin+=a;} +this.min.x=xmin;this.min.y=ymin;this.min.z=zmin;this.max.x=xmax;this.max.y=ymax;this.max.z=zmax;this.updateInternals();this.valid=true;};x3dom.fields.FrustumVolume=function(clipMat) +{this.planeNormals=[];this.planeDistances=[];this.directionIndex=[];if(arguments.length===0){return;} +var planeEquation=[];for(var i=0;i<6;i++){this.planeNormals[i]=new x3dom.fields.SFVec3f(0,0,0);this.planeDistances[i]=0;this.directionIndex[i]=0;planeEquation[i]=new x3dom.fields.SFVec4f(0,0,0,0);} +planeEquation[0].x=clipMat._30-clipMat._00;planeEquation[0].y=clipMat._31-clipMat._01;planeEquation[0].z=clipMat._32-clipMat._02;planeEquation[0].w=clipMat._33-clipMat._03;planeEquation[1].x=clipMat._30+clipMat._00;planeEquation[1].y=clipMat._31+clipMat._01;planeEquation[1].z=clipMat._32+clipMat._02;planeEquation[1].w=clipMat._33+clipMat._03;planeEquation[2].x=clipMat._30+clipMat._10;planeEquation[2].y=clipMat._31+clipMat._11;planeEquation[2].z=clipMat._32+clipMat._12;planeEquation[2].w=clipMat._33+clipMat._13;planeEquation[3].x=clipMat._30-clipMat._10;planeEquation[3].y=clipMat._31-clipMat._11;planeEquation[3].z=clipMat._32-clipMat._12;planeEquation[3].w=clipMat._33-clipMat._13;planeEquation[4].x=clipMat._30+clipMat._20;planeEquation[4].y=clipMat._31+clipMat._21;planeEquation[4].z=clipMat._32+clipMat._22;planeEquation[4].w=clipMat._33+clipMat._23;planeEquation[5].x=clipMat._30-clipMat._20;planeEquation[5].y=clipMat._31-clipMat._21;planeEquation[5].z=clipMat._32-clipMat._22;planeEquation[5].w=clipMat._33-clipMat._23;for(i=0;i<6;i++){var vectorLength=Math.sqrt(planeEquation[i].x*planeEquation[i].x+ +planeEquation[i].y*planeEquation[i].y+ +planeEquation[i].z*planeEquation[i].z);planeEquation[i].x/=vectorLength;planeEquation[i].y/=vectorLength;planeEquation[i].z/=vectorLength;planeEquation[i].w/=-vectorLength;} +var updateDirectionIndex=function(normalVec){var ind=0;if(normalVec.x>0)ind|=1;if(normalVec.y>0)ind|=2;if(normalVec.z>0)ind|=4;return ind;};this.planeNormals[3].setValues(planeEquation[0]);this.planeDistances[3]=planeEquation[0].w;this.directionIndex[3]=updateDirectionIndex(this.planeNormals[3]);this.planeNormals[2].setValues(planeEquation[1]);this.planeDistances[2]=planeEquation[1].w;this.directionIndex[2]=updateDirectionIndex(this.planeNormals[2]);this.planeNormals[5].setValues(planeEquation[2]);this.planeDistances[5]=planeEquation[2].w;this.directionIndex[5]=updateDirectionIndex(this.planeNormals[5]);this.planeNormals[4].setValues(planeEquation[3]);this.planeDistances[4]=planeEquation[3].w;this.directionIndex[4]=updateDirectionIndex(this.planeNormals[4]);this.planeNormals[0].setValues(planeEquation[4]);this.planeDistances[0]=planeEquation[4].w;this.directionIndex[0]=updateDirectionIndex(this.planeNormals[0]);this.planeNormals[1].setValues(planeEquation[5]);this.planeDistances[1]=planeEquation[5].w;this.directionIndex[1]=updateDirectionIndex(this.planeNormals[1]);};x3dom.fields.FrustumVolume.prototype.intersect=function(vol,planeMask) +{if(this.planeNormals.length<6){x3dom.debug.logWarning("FrustumVolume not initialized!");return false;} +var that=this;var min=vol.min,max=vol.max;var setDirectionIndexPoint=function(index){var pnt=new x3dom.fields.SFVec3f(0,0,0);if(index&1){pnt.x=min.x;} +else{pnt.x=max.x;} +if(index&2){pnt.y=min.y;} +else{pnt.y=max.y;} +if(index&4){pnt.z=min.z;} +else{pnt.z=max.z;} +return pnt;};var pntIsInHalfSpace=function(i,pnt){var s=that.planeNormals[i].dot(pnt)-that.planeDistances[i];return(s>=0);};var isInHalfSpace=function(i){var p=setDirectionIndexPoint(that.directionIndex[i]);return pntIsInHalfSpace(i,p);};var isOutHalfSpace=function(i){var p=setDirectionIndexPoint(that.directionIndex[i]^7);return!pntIsInHalfSpace(i,p);};var mask=1;if(planeMask<0)planeMask=0;for(var i=0;i<6;i++,mask<<=1){if((planeMask&mask)!=0) +continue;if(isOutHalfSpace(i)) +return-1;if(isInHalfSpace(i)) +planeMask|=mask;} +return planeMask;};x3dom.docs={};x3dom.docs.specURLMap={CADGeometry:"CADGeometry.html",Core:"core.html",DIS:"dis.html",CubeMapTexturing:"env_texture.html",EnvironmentalEffects:"enveffects.html",EnvironmentalSensor:"envsensor.html",Followers:"followers.html",Geospatial:"geodata.html",Geometry2D:"geometry2D.html",Geometry3D:"geometry3D.html",Grouping:"group.html","H-Anim":"hanim.html",Interpolation:"interp.html",KeyDeviceSensor:"keyboard.html",Layering:"layering.html",Layout:"layout.html",Lighting:"lighting.html",Navigation:"navigation.html",Networking:"networking.html",NURBS:"nurbs.html",ParticleSystems:"particle_systems.html",Picking:"picking.html",PointingDeviceSensor:"pointingsensor.html",Rendering:"rendering.html",RigidBodyPhysics:"rigid_physics.html",Scripting:"scripting.html",Shaders:"shaders.html",Shape:"shape.html",Sound:"sound.html",Text:"text.html",Texturing3D:"texture3D.html",Texturing:"texturing.html",Time:"time.html",EventUtilities:"utils.html",VolumeRendering:"volume.html"};x3dom.docs.specBaseURL="http://www.web3d.org/x3d/specifications/ISO-IEC-19775-1.2-X3D-AbstractSpecification/Part01/components/";x3dom.docs.getNodeTreeInfo=function(){var tn,t;var types="";var objInArray=function(array,obj){for(var i=0;i"+ +t+"   "+ +x3dom.nodeTypes[t]._compName+"
        ";for(var i in x3dom.nodeTypes[t].childTypes[t]){dump(x3dom.nodeTypes[t].childTypes[t][i],indent+1);}};for(tn in x3dom.nodeTypes){var t=x3dom.nodeTypes[tn];if(t.childTypes===undefined){t.childTypes={};} +while(t.superClass){if(t.superClass.childTypes[t.superClass._typeName]===undefined){t.superClass.childTypes[t.superClass._typeName]=[];} +if(!objInArray(t.superClass.childTypes[t.superClass._typeName],t._typeName)){t.superClass.childTypes[t.superClass._typeName].push(t._typeName);} +t=t.superClass;}} +dump("X3DNode",0);return"
        "+types+"
        ";};x3dom.docs.getComponentInfo=function(){var components=[];var component;var result="";var c,cn;for(c in x3dom.components){components.push(c);} +components.sort();for(cn in components){c=components[cn];component=x3dom.components[c];result+="

        "+ +c+"

        ";result+="
          ";for(var t in component){result+="
        • "+ +t+"
          • ";} +result+="
        ";} +return result;};x3dom.shader={};x3dom.shader.PICKING="picking";x3dom.shader.PICKING_24="picking24";x3dom.shader.PICKING_ID="pickingId";x3dom.shader.PICKING_COLOR="pickingColor";x3dom.shader.PICKING_TEXCOORD="pickingTexCoord";x3dom.shader.FRONTGROUND_TEXTURE="frontgroundTexture";x3dom.shader.BACKGROUND_TEXTURE="backgroundTexture";x3dom.shader.BACKGROUND_SKYTEXTURE="backgroundSkyTexture";x3dom.shader.BACKGROUND_CUBETEXTURE="backgroundCubeTexture";x3dom.shader.SHADOW="shadow";x3dom.shader.BLUR="blur";x3dom.shader.DEPTH="depth";x3dom.shader.NORMAL="normal";x3dom.shader.TEXTURE_REFINEMENT="textureRefinement";x3dom.shader.SSAO="ssao";x3dom.shader.material=function(){var shaderPart="uniform vec3 diffuseColor;\n"+"uniform vec3 specularColor;\n"+"uniform vec3 emissiveColor;\n"+"uniform float shininess;\n"+"uniform float transparency;\n"+"uniform float ambientIntensity;\n";return shaderPart;};x3dom.shader.twoSidedMaterial=function(){var shaderPart="uniform vec3 backDiffuseColor;\n"+"uniform vec3 backSpecularColor;\n"+"uniform vec3 backEmissiveColor;\n"+"uniform float backShininess;\n"+"uniform float backTransparency;\n"+"uniform float backAmbientIntensity;\n";return shaderPart;};x3dom.shader.fog=function(){var shaderPart="uniform vec3 fogColor;\n"+"uniform float fogType;\n"+"uniform float fogRange;\n"+"varying vec3 fragEyePosition;\n"+"float calcFog(in vec3 eye) {\n"+" float f0 = 0.0;\n"+" if(fogType == 0.0) {\n"+" if(length(eye) < fogRange){\n"+" f0 = (fogRange-length(eye)) / fogRange;\n"+" }\n"+" }else{\n"+" if(length(eye) < fogRange){\n"+" f0 = exp(-length(eye) / (fogRange-length(eye) ) );\n"+" }\n"+" }\n"+" f0 = clamp(f0, 0.0, 1.0);\n"+" return f0;\n"+"}\n";return shaderPart;};x3dom.shader.clipPlanes=function(numClipPlanes){var shaderPart="",c;for(c=0;c= lCutOffAngle) return 0.0;\n"+" else if(spotAngle <= lBeamWidth) return attenuation;\n"+" else return attenuation * (spotAngle - lCutOffAngle) / (lBeamWidth - lCutOffAngle);\n"+" }\n"+"}\n";shaderPart+="void getShadowValues(inout vec4 shadowMapValues, inout float viewSampleDepth, in mat4 lightMatrix, in vec4 worldCoords, in sampler2D shadowMap){\n"+" vec4 lightSpaceCoords = lightMatrix*worldCoords;\n"+" vec3 lightSpaceCoordsCart = lightSpaceCoords.xyz / lightSpaceCoords.w;\n"+" vec2 textureCoords = (lightSpaceCoordsCart.xy + 1.0)*0.5;\n"+" viewSampleDepth = lightSpaceCoordsCart.z;\n"+" shadowMapValues = texture2D(shadowMap, textureCoords);\n";if(!x3dom.caps.FP_TEXTURES||x3dom.caps.MOBILE) +shaderPart+=" shadowMapValues = vec4(1.0,1.0,unpackDepth(shadowMapValues),1.0);\n";shaderPart+="}\n";shaderPart+="void getShadowValuesPointLight(inout vec4 shadowMapValues, inout float viewSampleDepth, in vec3 lLocation, in vec4 worldCoords, in mat4 lightViewMatrix,"+"in mat4 lMatrix_0, in mat4 lMatrix_1, in mat4 lMatrix_2, in mat4 lMatrix_3, in mat4 lMatrix_4, in mat4 lMatrix_5,"+"in sampler2D shadowMap_0, in sampler2D shadowMap_1, in sampler2D shadowMap_2, in sampler2D shadowMap_3,"+"in sampler2D shadowMap_4, in sampler2D shadowMap_5){\n"+" vec4 transformed = lightViewMatrix * worldCoords;\n"+" vec3 lightVec = normalize(transformed.xyz/transformed.w);\n"+" vec3 lightVecAbs = abs(lightVec);\n"+" float maximum = max(max(lightVecAbs.x, lightVecAbs.y),lightVecAbs.z);\n"+" if (lightVecAbs.x == maximum) {\n"+" if (lightVec.x < 0.0) getShadowValues(shadowMapValues, viewSampleDepth, lMatrix_3,worldCoords,shadowMap_3);\n"+" else getShadowValues(shadowMapValues, viewSampleDepth, lMatrix_1,worldCoords,shadowMap_1);\n"+" }\n"+" else if (lightVecAbs.y == maximum) {\n"+" if (lightVec.y < 0.0) getShadowValues(shadowMapValues, viewSampleDepth, lMatrix_4,worldCoords,shadowMap_4);\n"+" else getShadowValues(shadowMapValues, viewSampleDepth, lMatrix_5,worldCoords,shadowMap_5);\n"+" }\n"+" else if (lightVec.z < 0.0) getShadowValues(shadowMapValues, viewSampleDepth, lMatrix_0,worldCoords,shadowMap_0);\n"+" else getShadowValues(shadowMapValues, viewSampleDepth, lMatrix_2,worldCoords,shadowMap_2);\n"+"}\n";shaderPart+="void getShadowValuesCascaded(inout vec4 shadowMapValues, inout float viewSampleDepth, in vec4 worldCoords, in float eyeDepth, in mat4 lMatrix_0, in mat4 lMatrix_1, in mat4 lMatrix_2,"+"in mat4 lMatrix_3, in mat4 lMatrix_4, in mat4 lMatrix_5, in sampler2D shadowMap_0, in sampler2D shadowMap_1, in sampler2D shadowMap_2,"+"in sampler2D shadowMap_3, in sampler2D shadowMap_4, in sampler2D shadowMap_5, in float split_0, in float split_1, in float split_2, in float split_3, in float split_4){\n"+" if (eyeDepth < split_0) getShadowValues(shadowMapValues, viewSampleDepth, lMatrix_0, worldCoords, shadowMap_0);\n"+" else if (eyeDepth < split_1) getShadowValues(shadowMapValues, viewSampleDepth, lMatrix_1, worldCoords, shadowMap_1);\n"+" else if (eyeDepth < split_2) getShadowValues(shadowMapValues, viewSampleDepth, lMatrix_2, worldCoords, shadowMap_2);\n"+" else if (eyeDepth < split_3) getShadowValues(shadowMapValues, viewSampleDepth, lMatrix_3, worldCoords, shadowMap_3);\n"+" else if (eyeDepth < split_4) getShadowValues(shadowMapValues, viewSampleDepth, lMatrix_4, worldCoords, shadowMap_4);\n"+" else getShadowValues(shadowMapValues, viewSampleDepth, lMatrix_5, worldCoords, shadowMap_5);\n"+"}\n";shaderPart+="float ESM(float shadowMapDepth, float viewSampleDepth, float offset){\n";if(!x3dom.caps.FP_TEXTURES||x3dom.caps.MOBILE) +shaderPart+=" return exp(-80.0*(1.0-offset)*(viewSampleDepth - shadowMapDepth));\n";else shaderPart+=" return shadowMapDepth * exp(-80.0*(1.0-offset)*viewSampleDepth);\n";shaderPart+="}\n";shaderPart+="float VSM(vec2 moments, float viewSampleDepth, float offset){\n"+" viewSampleDepth = (viewSampleDepth + 1.0) * 0.5;\n"+" if (viewSampleDepth <= moments.x) return 1.0;\n"+" float variance = moments.y - moments.x * moments.x;\n"+" variance = max(variance, 0.00002 + offset*0.01);\n"+" float d = viewSampleDepth - moments.x;\n"+" return variance/(variance + d*d);\n"+"}\n";return shaderPart;};x3dom.shader.light=function(numLights){var shaderPart="";for(var l=0;l= lCutOffAngle) spot = 0.0;\n"+" else if(spotAngle <= lBeamWidth) spot = 1.0;\n"+" else spot = (spotAngle - lCutOffAngle ) / (lBeamWidth - lCutOffAngle);\n"+" }\n"+" }\n"+" vec3 H = normalize( L + V );\n"+" float NdotL = clamp(dot(L, N), 0.0, 1.0);\n"+" float NdotH = clamp(dot(H, N), 0.0, 1.0);\n"+" float ambientFactor = lAmbientIntensity * ambIntensity;\n"+" float diffuseFactor = lIntensity * NdotL;\n"+" float specularFactor = lIntensity * pow(NdotH, shin*128.0);\n"+" return vec3(ambientFactor, diffuseFactor, specularFactor) * attentuation * spot;\n"+"}\n";return shaderPart;};x3dom.shader.TBNCalculation=function(){var shaderPart="";shaderPart+="mat3 cotangent_frame(vec3 N, vec3 p, vec2 uv)\n"+"{\n"+" // get edge vectors of the pixel triangle\n"+" vec3 dp1 = dFdx( p );\n"+" vec3 dp2 = dFdy( p );\n"+" vec2 duv1 = dFdx( uv );\n"+" vec2 duv2 = dFdy( uv );\n"+"\n"+" // solve the linear system\n"+" vec3 dp2perp = cross( dp2, N );\n"+" vec3 dp1perp = cross( N, dp1 );\n"+" vec3 T = dp2perp * duv1.x + dp1perp * duv2.x;\n"+" vec3 B = dp2perp * duv1.y + dp1perp * duv2.y;\n"+"\n"+" // construct a scale-invariant frame\n"+" float invmax = inversesqrt( max( dot(T,T), dot(B,B) ) );\n"+" return mat3( T * invmax, B * invmax, N );\n"+"}\n\n";shaderPart+="vec3 perturb_normal( vec3 N, vec3 V, vec2 texcoord )\n"+"{\n"+" // assume N, the interpolated vertex normal and\n"+" // V, the view vector (vertex to eye)\n"+" vec3 map = texture2D(normalMap, texcoord ).xyz;\n"+" map = map * 255./127. - 128./127.;\n"+" mat3 TBN = cotangent_frame(N, -V, texcoord);\n"+" return normalize(TBN * map);\n"+"}\n\n";return shaderPart;};x3dom.shader.DynamicShader=function(gl,properties) +{this.program=gl.createProgram();var vertexShader=this.generateVertexShader(gl,properties);var fragmentShader=this.generateFragmentShader(gl,properties);gl.attachShader(this.program,vertexShader);gl.attachShader(this.program,fragmentShader);gl.bindAttribLocation(this.program,0,"position");gl.linkProgram(this.program);return this.program;};x3dom.shader.DynamicShader.prototype.generateVertexShader=function(gl,properties) +{var shader="";shader+="uniform mat4 modelViewMatrix;\n";shader+="uniform mat4 modelViewProjectionMatrix;\n";if(properties.POSCOMPONENTS==3){shader+="attribute vec3 position;\n";}else if(properties.POSCOMPONENTS==4){shader+="attribute vec4 position;\n";} +if(properties.IMAGEGEOMETRY){shader+="uniform vec3 IG_bboxMin;\n";shader+="uniform vec3 IG_bboxMax;\n";shader+="uniform float IG_coordTextureWidth;\n";shader+="uniform float IG_coordTextureHeight;\n";shader+="uniform vec2 IG_implicitMeshSize;\n";for(var i=0;i= 0.0) ? val : -1.0 * val);\n"+"}"+"\n"+"void main(void) {\n"+" vec3 normal = -reflect(normalize(fragNormal), vec3(0.0,0.0,1.0));\n"+" if (magn(normal.y) >= magn(normal.x) && magn(normal.y) >= magn(normal.z))\n"+" normal.xz = -normal.xz;\n"+" gl_FragColor = textureCube(tex, normal);\n"+"}\n";var fragmentShader=gl.createShader(gl.FRAGMENT_SHADER);gl.shaderSource(fragmentShader,shader);gl.compileShader(fragmentShader);if(!gl.getShaderParameter(fragmentShader,gl.COMPILE_STATUS)){x3dom.debug.logError("[BackgroundCubeTextureShader] FragmentShader "+gl.getShaderInfoLog(fragmentShader));} +return fragmentShader;};x3dom.shader.ShadowShader=function(gl) +{this.program=gl.createProgram();var vertexShader=this.generateVertexShader(gl);var fragmentShader=this.generateFragmentShader(gl);gl.attachShader(this.program,vertexShader);gl.attachShader(this.program,fragmentShader);gl.bindAttribLocation(this.program,0,"position");gl.linkProgram(this.program);return this.program;};x3dom.shader.ShadowShader.prototype.generateVertexShader=function(gl) +{var shader="";if(!x3dom.caps.MOBILE){shader+="attribute vec3 position;\n"+"uniform mat4 modelViewProjectionMatrix;\n"+"varying vec4 projCoords;\n"+"uniform float imageGeometry;\n"+"uniform vec3 IG_bboxMin;\n"+"uniform vec3 IG_bboxMax;\n"+"uniform float IG_coordTextureWidth;\n"+"uniform float IG_coordTextureHeight;\n"+"uniform float IG_indexTextureWidth;\n"+"uniform float IG_indexTextureHeight;\n"+"uniform sampler2D IG_indexTexture;\n"+"uniform sampler2D IG_coordinateTexture;\n"+"uniform vec2 IG_implicitMeshSize;\n"+"uniform vec3 bgCenter;\n"+"uniform vec3 bgSize;\n"+"uniform float bgPrecisionMax;\n"+"uniform float popGeometry;\n"+"uniform float PG_precisionLevel;\n"+"uniform float PG_powPrecision;\n"+"uniform vec3 PG_maxBBSize;\n"+"uniform vec3 PG_bbMin;\n"+"uniform vec3 PG_bbMaxModF;\n"+"uniform vec3 PG_bboxShiftVec;\n"+"void main(void) {\n"+" vec3 pos;\n"+" if (imageGeometry != 0.0) {\n"+" vec2 IG_texCoord;\n"+" if(imageGeometry == 1.0) {\n"+" vec2 halfPixel = vec2(0.5/IG_indexTextureWidth,0.5/IG_indexTextureHeight);\n"+" IG_texCoord = vec2(position.x*(IG_implicitMeshSize.x/IG_indexTextureWidth), position.y*(IG_implicitMeshSize.y/IG_indexTextureHeight)) + halfPixel;\n"+" vec2 IG_index = texture2D( IG_indexTexture, IG_texCoord ).rg;\n"+" IG_texCoord = IG_index * 0.996108948;\n"+" } else {\n"+" vec2 halfPixel = vec2(0.5/IG_coordTextureWidth, 0.5/IG_coordTextureHeight);\n"+" IG_texCoord = vec2(position.x*(IG_implicitMeshSize.x/IG_coordTextureWidth), position.y*(IG_implicitMeshSize.y/IG_coordTextureHeight)) + halfPixel;\n"+" }\n"+" pos = texture2D( IG_coordinateTexture, IG_texCoord ).rgb;\n"+" pos = pos * (IG_bboxMax - IG_bboxMin) + IG_bboxMin;\n"+" } else if (popGeometry != 0.0){\n"+" pos = position;\n"+" vec3 offsetVec = step(pos / bgPrecisionMax, PG_bbMaxModF) * PG_bboxShiftVec;\n"+" if (PG_precisionLevel <= 2.0) {\n"+" pos = floor(pos / PG_powPrecision) * PG_powPrecision;\n"+" pos /= (65536.0 - PG_powPrecision);\n"+" }\n"+" else {\n"+" pos /= bgPrecisionMax;\n"+" }\n"+" pos = (pos + offsetVec + PG_bbMin) * PG_maxBBSize;\n"+" } else {\n"+" pos = bgCenter + bgSize * position / bgPrecisionMax;\n"+" }\n"+" projCoords = modelViewProjectionMatrix * vec4(pos, 1.0);\n"+" gl_Position = projCoords;\n"+"}\n";}else{shader="attribute vec3 position;\n"+"uniform vec3 bgCenter;\n"+"uniform vec3 bgSize;\n"+"uniform float bgPrecisionMax;\n"+"uniform mat4 modelViewProjectionMatrix;\n"+"varying vec4 projCoords;\n"+"void main(void) {\n"+" vec3 pos = bgCenter + bgSize * position / bgPrecisionMax;\n"+" projCoords = modelViewProjectionMatrix * vec4(pos, 1.0);\n"+" gl_Position = projCoords;\n"+"}\n";} +var vertexShader=gl.createShader(gl.VERTEX_SHADER);gl.shaderSource(vertexShader,shader);gl.compileShader(vertexShader);if(!gl.getShaderParameter(vertexShader,gl.COMPILE_STATUS)){x3dom.debug.logError("[ShadowShader] VertexShader "+gl.getShaderInfoLog(vertexShader));} +return vertexShader;};x3dom.shader.ShadowShader.prototype.generateFragmentShader=function(gl) +{var shader="#ifdef GL_FRAGMENT_PRECISION_HIGH\n";shader+="precision highp float;\n";shader+="#else\n";shader+=" precision mediump float;\n";shader+="#endif\n\n";shader+="varying vec4 projCoords;\n"+"uniform float offset;\n"+"uniform bool cameraView;\n";if(!x3dom.caps.FP_TEXTURES||x3dom.caps.MOBILE) +shader+=x3dom.shader.rgbaPacking();shader+="void main(void) {\n"+" vec3 proj = (projCoords.xyz / projCoords.w);\n";if(!x3dom.caps.FP_TEXTURES||x3dom.caps.MOBILE){shader+="gl_FragColor = packDepth(proj.z);\n";}else{shader+=" if (!cameraView){\n"+" proj.z = (proj.z + 1.0)*0.5;\n"+" proj.y = proj.z * proj.z;\n"+" }\n";shader+=" gl_FragColor = vec4(proj, 1.0);\n";} +shader+="}\n";var fragmentShader=gl.createShader(gl.FRAGMENT_SHADER);gl.shaderSource(fragmentShader,shader);gl.compileShader(fragmentShader);if(!gl.getShaderParameter(fragmentShader,gl.COMPILE_STATUS)){x3dom.debug.logError("[ShadowShader] FragmentShader "+gl.getShaderInfoLog(fragmentShader));} +return fragmentShader;};x3dom.shader.ShadowRenderingShader=function(gl,shadowedLights) +{this.program=gl.createProgram();var vertexShader=this.generateVertexShader(gl);var fragmentShader=this.generateFragmentShader(gl,shadowedLights);gl.attachShader(this.program,vertexShader);gl.attachShader(this.program,fragmentShader);gl.bindAttribLocation(this.program,0,"position");gl.linkProgram(this.program);return this.program;};x3dom.shader.ShadowRenderingShader.prototype.generateVertexShader=function(gl) +{var shader="";shader+="attribute vec2 position;\n";shader+="varying vec2 vPosition;\n";shader+="void main(void) {\n";shader+=" vPosition = position;\n";shader+=" gl_Position = vec4(position, -1.0, 1.0);\n";shader+="}\n";var vertexShader=gl.createShader(gl.VERTEX_SHADER);gl.shaderSource(vertexShader,shader);gl.compileShader(vertexShader);if(!gl.getShaderParameter(vertexShader,gl.COMPILE_STATUS)){x3dom.debug.logError("[ShadowRendering] VertexShader "+gl.getShaderInfoLog(vertexShader));} +return vertexShader;};x3dom.shader.ShadowRenderingShader.prototype.generateFragmentShader=function(gl,shadowedLights) +{var shader="#ifdef GL_FRAGMENT_PRECISION_HIGH\n";shader+="precision highp float;\n";shader+="#else\n";shader+=" precision mediump float;\n";shader+="#endif\n\n";shader+="uniform mat4 inverseViewProj;\n";shader+="uniform mat4 inverseProj;\n";shader+="varying vec2 vPosition;\n";shader+="uniform sampler2D sceneMap;\n";for(var i=0;i<5;i++) +shader+="uniform float cascade"+i+"_Depth;\n";for(var l=0;l=0||navigator.appVersion.indexOf("Mobile")>-1||x3dom.caps.MAX_VARYING_VECTORS<=8||x3dom.caps.MAX_VERTEX_TEXTURE_IMAGE_UNITS<2){x3dom.caps.MOBILE=true;} +if(x3dom.caps.MOBILE){if(forbidMobileShaders){x3dom.caps.MOBILE=false;x3dom.debug.logWarning("Detected mobile graphics card! "+"But being forced to desktop shaders which might not work!");} +else{x3dom.debug.logWarning("Detected mobile graphics card! "+"Using low quality shaders without ImageGeometry support!");}} +else{if(forceMobileShaders){x3dom.caps.MOBILE=true;x3dom.debug.logWarning("Detected desktop graphics card! "+"But being forced to mobile shaders with lower quality!");}}} +catch(ex){x3dom.debug.logWarning("Your browser probably supports an older WebGL version. "+"Please try the old mobile runtime instead:\n"+"http://www.x3dom.org/x3dom/src_mobile/x3dom.js");newCtx=null;} +return newCtx;}} +catch(e){x3dom.debug.logWarning(e);}} +return null;} +Context.prototype.setupShape=function(gl,drawable,viewarea){var q=0,q6;var textures,t;var vertices,positionBuffer;var texCoordBuffer,normalBuffer,colorBuffer;var indicesBuffer,indexArray;var shape=drawable.shape;var geoNode=shape._cf.geometry.node;if(shape._webgl!==undefined){var needFullReInit=false;if(shape._dirty.colors===true&&shape._webgl.shader.color===undefined&&geoNode._mesh._colors[0].length){needFullReInit=true;} +if(needFullReInit&&shape._cleanupGLObjects){shape._cleanupGLObjects(true,false);} +if(shape._dirty.texture===true){if(shape._webgl.texture.length!=shape.getTextures().length){for(t=0;t65535)){indexArray=new Uint32Array(shape._webgl.indexes[q]);shape._webgl.indexType=gl.UNSIGNED_INT;} +else{indexArray=new Uint16Array(shape._webgl.indexes[q]);shape._webgl.indexType=gl.UNSIGNED_SHORT;} +gl.bindBuffer(gl.ELEMENT_ARRAY_BUFFER,indicesBuffer);gl.bufferData(gl.ELEMENT_ARRAY_BUFFER,indexArray,gl.STATIC_DRAW);indexArray=null;shape._webgl.positions[q]=geoNode._mesh._positions[q];gl.deleteBuffer(shape._webgl.buffers[q6+1]);positionBuffer=gl.createBuffer();shape._webgl.buffers[q6+1]=positionBuffer;gl.bindBuffer(gl.ARRAY_BUFFER,positionBuffer);gl.bindBuffer(gl.ELEMENT_ARRAY_BUFFER,shape._webgl.buffers[q6]);vertices=new Float32Array(shape._webgl.positions[q]);gl.bufferData(gl.ARRAY_BUFFER,vertices,gl.STATIC_DRAW);gl.bindBuffer(gl.ARRAY_BUFFER,positionBuffer);gl.vertexAttribPointer(shape._webgl.shader.position,geoNode._mesh._numPosComponents,shape._webgl.coordType,false,shape._coordStrideOffset[0],shape._coordStrideOffset[1]);vertices=null;} +shape._dirty.positions=false;shape._dirty.indexes=false;} +if(shape._dirty.colors==true){if(shape._webgl.shader.color!==undefined){shape._webgl.colors[q]=geoNode._mesh._colors[q];gl.deleteBuffer(shape._webgl.buffers[q6+4]);colorBuffer=gl.createBuffer();shape._webgl.buffers[q6+4]=colorBuffer;colors=new Float32Array(shape._webgl.colors[q]);gl.bindBuffer(gl.ARRAY_BUFFER,colorBuffer);gl.bufferData(gl.ARRAY_BUFFER,colors,gl.STATIC_DRAW);gl.vertexAttribPointer(shape._webgl.shader.color,geoNode._mesh._numColComponents,shape._webgl.colorType,false,shape._colorStrideOffset[0],shape._colorStrideOffset[1]);colors=null;} +shape._dirty.colors=false;} +if(shape._dirty.normals==true){if(shape._webgl.shader.normal!==undefined){shape._webgl.normals[q]=geoNode._mesh._normals[q];gl.deleteBuffer(shape._webgl.buffers[q6+2]);normalBuffer=gl.createBuffer();shape._webgl.buffers[q6+2]=normalBuffer;normals=new Float32Array(shape._webgl.normals[q]);gl.bindBuffer(gl.ARRAY_BUFFER,normalBuffer);gl.bufferData(gl.ARRAY_BUFFER,normals,gl.STATIC_DRAW);gl.vertexAttribPointer(shape._webgl.shader.normal,geoNode._mesh._numNormComponents,shape._webgl.normalType,false,shape._normalStrideOffset[0],shape._normalStrideOffset[1]);normals=null;} +shape._dirty.normals=false;} +if(shape._dirty.texcoords==true){if(shape._webgl.shader.texcoord!==undefined){shape._webgl.texcoords[q]=geoNode._mesh._texCoords[q];gl.deleteBuffer(shape._webgl.buffers[q6+3]);texCoordBuffer=gl.createBuffer();shape._webgl.buffers[q6+3]=texCoordBuffer;texCoords=new Float32Array(shape._webgl.texcoords[q]);gl.bindBuffer(gl.ARRAY_BUFFER,texCoordBuffer);gl.bufferData(gl.ARRAY_BUFFER,texCoords,gl.STATIC_DRAW);gl.vertexAttribPointer(shape._webgl.shader.texCoord,geoNode._mesh._numTexComponents,shape._webgl.texCoordType,false,shape._texCoordStrideOffset[0],shape._texCoordStrideOffset[1]);texCoords=null;} +shape._dirty.texcoords=false;} +if(shape._dirty.specialAttribs==true){if(shape._webgl.shader.particleSize!==undefined){var szArr=geoNode._vf.size.toGL();if(szArr.length){gl.deleteBuffer(shape._webgl.buffers[q6+5]);shape._webgl.buffers[q6+5]=gl.createBuffer();gl.bindBuffer(gl.ARRAY_BUFFER,shape._webgl.buffers[q6+5]);gl.bufferData(gl.ARRAY_BUFFER,new Float32Array(szArr),gl.STATIC_DRAW);} +shape._dirty.specialAttribs=false;}}}} +else +{} +if(shape._webgl.imageGeometry!=0){for(t=0;t0&&force)||this._parentNodes.length==0)) +{var sp=this._webgl.shader;for(var q=0;q65535)){indexArray=new Uint32Array(shape._webgl.indexes[q]);shape._webgl.indexType=gl.UNSIGNED_INT;} +else{indexArray=new Uint16Array(shape._webgl.indexes[q]);shape._webgl.indexType=gl.UNSIGNED_SHORT;} +gl.bindBuffer(gl.ELEMENT_ARRAY_BUFFER,indicesBuffer);gl.bufferData(gl.ELEMENT_ARRAY_BUFFER,indexArray,gl.STATIC_DRAW);indexArray=null;positionBuffer=gl.createBuffer();shape._webgl.buffers[q6+1]=positionBuffer;gl.bindBuffer(gl.ARRAY_BUFFER,positionBuffer);vertices=new Float32Array(shape._webgl.positions[q]);gl.bufferData(gl.ARRAY_BUFFER,vertices,gl.STATIC_DRAW);gl.bindBuffer(gl.ARRAY_BUFFER,positionBuffer);gl.vertexAttribPointer(sp.position,geoNode._mesh._numPosComponents,shape._webgl.coordType,false,shape._coordStrideOffset[0],shape._coordStrideOffset[1]);gl.enableVertexAttribArray(sp.position);vertices=null;} +if(sp.normal!==undefined||shape._webgl.normals[q]){normalBuffer=gl.createBuffer();shape._webgl.buffers[q6+2]=normalBuffer;var normals=new Float32Array(shape._webgl.normals[q]);gl.bindBuffer(gl.ARRAY_BUFFER,normalBuffer);gl.bufferData(gl.ARRAY_BUFFER,normals,gl.STATIC_DRAW);gl.vertexAttribPointer(sp.normal,geoNode._mesh._numNormComponents,shape._webgl.normalType,false,shape._normalStrideOffset[0],shape._normalStrideOffset[1]);gl.enableVertexAttribArray(sp.normal);normals=null;} +if(sp.texcoord!==undefined){var texcBuffer=gl.createBuffer();shape._webgl.buffers[q6+3]=texcBuffer;var texCoords=new Float32Array(shape._webgl.texcoords[q]);gl.bindBuffer(gl.ARRAY_BUFFER,texcBuffer);gl.bufferData(gl.ARRAY_BUFFER,texCoords,gl.STATIC_DRAW);gl.vertexAttribPointer(sp.texcoord,geoNode._mesh._numTexComponents,shape._webgl.texCoordType,false,shape._texCoordStrideOffset[0],shape._texCoordStrideOffset[1]);gl.enableVertexAttribArray(sp.texcoord);texCoords=null;} +if(sp.color!==undefined){colorBuffer=gl.createBuffer();shape._webgl.buffers[q6+4]=colorBuffer;var colors=new Float32Array(shape._webgl.colors[q]);gl.bindBuffer(gl.ARRAY_BUFFER,colorBuffer);gl.bufferData(gl.ARRAY_BUFFER,colors,gl.STATIC_DRAW);gl.vertexAttribPointer(sp.color,geoNode._mesh._numColComponents,shape._webgl.colorType,false,shape._colorStrideOffset[0],shape._colorStrideOffset[1]);gl.enableVertexAttribArray(sp.color);colors=null;} +if(sp.particleSize!==undefined){var sizeArr=geoNode._vf.size.toGL();if(sizeArr.length){var sizeBuffer=gl.createBuffer();shape._webgl.buffers[q6+5]=sizeBuffer;gl.bindBuffer(gl.ARRAY_BUFFER,sizeBuffer);gl.bufferData(gl.ARRAY_BUFFER,new Float32Array(sizeArr),gl.STATIC_DRAW);}}} +for(var df in geoNode._mesh._dynamicFields) +{if(!geoNode._mesh._dynamicFields.hasOwnProperty(df)) +continue;var attrib=geoNode._mesh._dynamicFields[df];shape._webgl.dynamicFields[currAttribs]={buf:{},name:df,numComponents:attrib.numComponents};if(sp[df]!==undefined){var attribBuffer=gl.createBuffer();shape._webgl.dynamicFields[currAttribs++].buf=attribBuffer;var attribs=new Float32Array(attrib.value);gl.bindBuffer(gl.ARRAY_BUFFER,attribBuffer);gl.bufferData(gl.ARRAY_BUFFER,attribs,gl.STATIC_DRAW);gl.vertexAttribPointer(sp[df],attrib.numComponents,gl.FLOAT,false,0,0);attribs=null;}}}};Context.prototype.setupScene=function(gl,bgnd){var sphere=null;var texture=null;var that=this;if(bgnd._webgl!==undefined){if(!bgnd._dirty){return;} +if(bgnd._webgl.texture!==undefined&&bgnd._webgl.texture){gl.deleteTexture(bgnd._webgl.texture);} +if(bgnd._cleanupGLObjects){bgnd._cleanupGLObjects();} +bgnd._webgl={};} +bgnd._dirty=false;var url=bgnd.getTexUrl();var i=0;var w=1,h=1;if(url.length>0&&url[0].length>0){if(url.length>=6&&url[1].length>0&&url[2].length>0&&url[3].length>0&&url[4].length>0&&url[5].length>0){sphere=new x3dom.nodeTypes.Sphere();bgnd._webgl={positions:sphere._mesh._positions[0],indexes:sphere._mesh._indices[0],buffers:[{},{}]};bgnd._webgl.primType=gl.TRIANGLES;bgnd._webgl.shader=this.cache.getShader(gl,x3dom.shader.BACKGROUND_CUBETEXTURE);bgnd._webgl.texture=x3dom.Utils.createTextureCube(gl,bgnd._nameSpace.doc,url,true,bgnd._vf.crossOrigin,true,false);} +else{bgnd._webgl={positions:[-w,-h,0,-w,h,0,w,-h,0,w,h,0],indexes:[0,1,2,3],buffers:[{},{}]};url=bgnd._nameSpace.getURL(url[0]);bgnd._webgl.texture=x3dom.Utils.createTexture2D(gl,bgnd._nameSpace.doc,url,true,bgnd._vf.crossOrigin,true,false);bgnd._webgl.primType=gl.TRIANGLE_STRIP;bgnd._webgl.shader=this.cache.getShader(gl,x3dom.shader.BACKGROUND_TEXTURE);}} +else{if(bgnd.getSkyColor().length>1||bgnd.getGroundColor().length){sphere=new x3dom.nodeTypes.Sphere();texture=gl.createTexture();bgnd._webgl={positions:sphere._mesh._positions[0],texcoords:sphere._mesh._texCoords[0],indexes:sphere._mesh._indices[0],buffers:[{},{},{}],texture:texture,primType:gl.TRIANGLES};var N=x3dom.Utils.nextHighestPowerOfTwo(bgnd.getSkyColor().length+bgnd.getGroundColor().length+2);N=(N<512)?512:N;var n=bgnd._vf.groundAngle.length;var tmp=[],arr=[];var colors=[],sky=[0];for(i=0;i0||bgnd._vf.groundColor.length==1){if(sky[sky.length-1]=0;i--){if((i==n-1)&&(Math.PI-bgnd._vf.groundAngle[i]<=Math.PI/2)){sky[sky.length]=Math.PI/2;colors[colors.length]=bgnd._vf.groundColor[bgnd._vf.groundColor.length-1];} +sky[sky.length]=Math.PI-bgnd._vf.groundAngle[i];colors[colors.length]=bgnd._vf.groundColor[i+1];} +if(n==0&&bgnd._vf.groundColor.length==1){sky[sky.length]=Math.PI/2;colors[colors.length]=bgnd._vf.groundColor[0];} +sky[sky.length]=Math.PI;colors[colors.length]=bgnd._vf.groundColor[0];} +else{if(sky[sky.length-1]0||s_gl.popGeometry>0){for(v=0,offset=0,v_n=s_geo._vf.vertexCount.length;v>>8)/255.0;sp.from=from.toGL();sp.sceneSize=sceneSize;if(s_gl.binaryGeometry!=0&&s_geo._vf.idsPerVertex){sp.shadowIDs=(shape._vf.idOffset+x3dom.nodeTypes.Shape.objectID+2);} +if(s_gl.coordType!=gl.FLOAT){if(!s_gl.popGeometry&&(x3dom.Utils.isUnsignedType(s_geo._vf.coordType))){sp.bgCenter=s_geo.getMin().toGL();} +else{sp.bgCenter=s_geo._vf.position.toGL();} +sp.bgSize=s_geo._vf.size.toGL();sp.bgPrecisionMax=s_geo.getPrecisionMax('coordType');} +if(pickMode==1&&s_gl.colorType!=gl.FLOAT){sp.bgPrecisionColMax=s_geo.getPrecisionMax('colorType');} +if(pickMode==2&&s_gl.texCoordType!=gl.FLOAT){sp.bgPrecisionTexMax=s_geo.getPrecisionMax('texCoordType');} +if(shape._clipPlanes){sp.modelViewMatrix=mat_view.mult(trafo).toGL();sp.viewMatrixInverse=mat_view.inverse().toGL();for(var cp=0;cp0||s_gl.popGeometry>0){for(v=0,offset=0,v_n=s_geo._vf.vertexCount.length;v65535)){indexArray=new Uint32Array(shape._webgl.indexes[q]);shape._webgl.indexType=gl.UNSIGNED_INT;} +else{indexArray=new Uint16Array(shape._webgl.indexes[q]);shape._webgl.indexType=gl.UNSIGNED_SHORT;} +gl.bindBuffer(gl.ELEMENT_ARRAY_BUFFER,s_gl.buffers[q6]);gl.bufferData(gl.ELEMENT_ARRAY_BUFFER,indexArray,gl.DYNAMIC_DRAW);indexArray=null;} +gl.bindBuffer(gl.ELEMENT_ARRAY_BUFFER,s_gl.buffers[q6]);} +gl.bindBuffer(gl.ARRAY_BUFFER,s_gl.buffers[q6+1]);gl.vertexAttribPointer(sp.position,s_msh._numPosComponents,s_gl.coordType,false,shape._coordStrideOffset[0],shape._coordStrideOffset[1]);gl.enableVertexAttribArray(sp.position);if(sp.normal!==undefined&&s_gl.buffers[q6+2]){gl.bindBuffer(gl.ARRAY_BUFFER,s_gl.buffers[q6+2]);gl.vertexAttribPointer(sp.normal,s_msh._numNormComponents,s_gl.normalType,false,shape._normalStrideOffset[0],shape._normalStrideOffset[1]);gl.enableVertexAttribArray(sp.normal);} +if(sp.texcoord!==undefined&&s_gl.buffers[q6+3]){gl.bindBuffer(gl.ARRAY_BUFFER,s_gl.buffers[q6+3]);gl.vertexAttribPointer(sp.texcoord,s_msh._numTexComponents,s_gl.texCoordType,false,shape._texCoordStrideOffset[0],shape._texCoordStrideOffset[1]);gl.enableVertexAttribArray(sp.texcoord);} +if(sp.color!==undefined&&s_gl.buffers[q6+4]){gl.bindBuffer(gl.ARRAY_BUFFER,s_gl.buffers[q6+4]);gl.vertexAttribPointer(sp.color,s_msh._numColComponents,s_gl.colorType,false,shape._colorStrideOffset[0],shape._colorStrideOffset[1]);gl.enableVertexAttribArray(sp.color);} +if((sp.id!==undefined||sp.particleSize!==undefined)&&s_gl.buffers[q6+5]){gl.bindBuffer(gl.ARRAY_BUFFER,s_gl.buffers[q6+5]);if(s_gl.binaryGeometry!=0&&s_geo._vf.idsPerVertex==true) +{gl.vertexAttribPointer(sp.id,1,gl.FLOAT,false,4,0);gl.enableVertexAttribArray(sp.id);} +else if(isParticleSet) +{gl.vertexAttribPointer(sp.particleSize,3,gl.FLOAT,false,0,0);gl.enableVertexAttribArray(sp.particleSize);}} +if(s_gl.popGeometry!=0&&s_gl.buffers[q6+5]){gl.bindBuffer(gl.ARRAY_BUFFER,s_gl.buffers[q6+5]);gl.vertexAttribPointer(sp.PG_vertexID,1,gl.FLOAT,false,4,0);gl.enableVertexAttribArray(sp.PG_vertexID);} +var indOff,renderMode=viewarea.getRenderMode();if(renderMode>0){var polyMode=(renderMode==1)?gl.POINTS:gl.LINES;if(s_gl.binaryGeometry>0||s_gl.popGeometry>0){for(v=0,offset=0,v_n=s_geo._vf.vertexCount.length;v0||s_gl.popGeometry>0){for(v=0,offset=0,v_n=s_geo._vf.vertexCount.length;v0){var viewpoint=scene.getViewpoint();var imgPlaneHeightAtDistOne=viewpoint.getImgPlaneHeightAtDistOne();var near=viewpoint.getNear();var center=model_view.multMatrixPnt(popGeo._vf.position);var tightRad=model_view.multMatrixVec(popGeo._vf.size).length()*0.5;var largestRad=model_view.multMatrixVec(popGeo._vf.maxBBSize).length()*0.5;var dist=Math.max(-center.z-tightRad,near);var projPixelLength=dist*(imgPlaneHeightAtDistOne/viewarea._height);var arg=(2*largestRad)/(tol*projPixelLength);currentLOD=Math.ceil(Math.log(arg)/0.693147180559945);currentLOD=(currentLOD<1)?1:((currentLOD>16)?16:currentLOD);} +var minPrec=popGeo._vf.minPrecisionLevel,maxPrec=popGeo._vf.maxPrecisionLevel;currentLOD=(minPrec!=-1&¤tLODmaxPrec)?maxPrec:currentLOD;var currentLOD_min=(s_gl.levelsAvailable4){mat_view=viewMat;mat_scene=sceneMat;} +else{mat_view=viewarea._last_mat_view;mat_scene=viewarea._last_mat_scene;} +var min=x3dom.fields.SFVec3f.copy(scene._lastMin);var max=x3dom.fields.SFVec3f.copy(scene._lastMax);var from=mat_view.inverse().e3();var _min=x3dom.fields.SFVec3f.copy(from);var _max=x3dom.fields.SFVec3f.copy(from);if(_min.x>min.x){_min.x=min.x;} +if(_min.y>min.y){_min.y=min.y;} +if(_min.z>min.z){_min.z=min.z;} +if(_max.x0&&shapeId>>8,buttonState&255);if(objId>=baseID){objId-=baseID;var hitObject;if(pickMode!=4){viewarea._pickingInfo.pickPos=pickPos;viewarea._pick.setValues(pickPos);viewarea._pickingInfo.pickNorm=pickNorm;viewarea._pickNorm.setValues(pickNorm);viewarea._pickingInfo.pickObj=null;viewarea._pickingInfo.lastClickObj=null;hitObject=scene._xmlNode;} +else{viewarea._pickingInfo.pickObj=x3dom.nodeTypes.Shape.idMap.nodeID[shapeId];hitObject=viewarea._pickingInfo.pickObj._xmlNode;} +if(scene._multiPartMap){var mp,multiPart;for(mp=0;mp=multiPart._minId&&objId<=multiPart._maxId) +{hitObject=multiPart._xmlNode;event={target:multiPart._xmlNode,button:button,mouseup:((buttonState>>>8)>0),layerX:x,layerY:y,pickedId:objId,worldX:pickPos.x,worldY:pickPos.y,worldZ:pickPos.z,normalX:pickNorm.x,normalY:pickNorm.y,normalZ:pickNorm.z,hitPnt:pickPos.toGL(),hitObject:hitObject,cancelBubble:false,stopPropagation:function(){this.cancelBubble=true;},preventDefault:function(){this.cancelBubble=true;}};multiPart.handleEvents(event);} +else +{event={target:multiPart._xmlNode,button:button,mouseup:((buttonState>>>8)>0),layerX:x,layerY:y,pickedId:-1,cancelBubble:false,stopPropagation:function(){this.cancelBubble=true;},preventDefault:function(){this.cancelBubble=true;}};multiPart.handleEvents(event);}}} +shadowObjectIdChanged=(viewarea._pickingInfo.shadowObjectId!=objId);viewarea._pickingInfo.lastShadowObjectId=viewarea._pickingInfo.shadowObjectId;viewarea._pickingInfo.shadowObjectId=objId;if((shadowObjectIdChanged||button)&&scene._xmlNode&&(scene._xmlNode["on"+eventType]||scene._xmlNode.hasAttribute("on"+eventType)||scene._listeners[eventType])) +{event={target:scene._xmlNode,type:eventType,button:button,mouseup:((buttonState>>>8)>0),layerX:x,layerY:y,shadowObjectId:objId,worldX:pickPos.x,worldY:pickPos.y,worldZ:pickPos.z,normalX:pickNorm.x,normalY:pickNorm.y,normalZ:pickNorm.z,hitPnt:pickPos.toGL(),hitObject:hitObject,cancelBubble:false,stopPropagation:function(){this.cancelBubble=true;},preventDefault:function(){this.cancelBubble=true;}};scene.callEvtHandler(("on"+eventType),event);} +if(scene._shadowIdMap&&scene._shadowIdMap.mapping&&objId>>8)>0),layerX:x,layerY:y,pickedId:-1,cancelBubble:false,stopPropagation:function(){this.cancelBubble=true;},preventDefault:function(){this.cancelBubble=true;}};multiPart.handleEvents(event);}} +shadowObjectIdChanged=(viewarea._pickingInfo.shadowObjectId!=-1);viewarea._pickingInfo.shadowObjectId=-1;if(shadowObjectIdChanged&&scene._xmlNode&&(scene._xmlNode["on"+eventType]||scene._xmlNode.hasAttribute("on"+eventType)||scene._listeners[eventType])) +{event={target:scene._xmlNode,type:eventType,button:button,mouseup:((buttonState>>>8)>0),layerX:x,layerY:y,shadowObjectId:viewarea._pickingInfo.shadowObjectId,cancelBubble:false,stopPropagation:function(){this.cancelBubble=true;},preventDefault:function(){this.cancelBubble=true;}};scene.callEvtHandler(("on"+eventType),event);} +if(objId>0){viewarea._pickingInfo.pickPos=pickPos;viewarea._pickingInfo.pickNorm=pickNorm;viewarea._pickingInfo.pickObj=x3dom.nodeTypes.Shape.idMap.nodeID[objId];} +else{viewarea._pickingInfo.pickObj=null;viewarea._pickingInfo.lastClickObj=null;}}} +var pickTime=x3dom.Utils.stopMeasure("picking");this.x3dElem.runtime.addMeasurement('PICKING',pickTime);return true;};Context.prototype.pickRect=function(viewarea,x1,y1,x2,y2) +{var gl=this.ctx3d;var scene=viewarea?viewarea._scene:null;if(!gl||!scene||!scene._webgl||!scene.drawableCollection) +return false;var from=viewarea._last_mat_view.inverse().e3();var sceneSize=scene._lastMax.subtract(scene._lastMin).length();var x=(x1<=x2)?x1:x2;var y=(y1>=y2)?y1:y2;var width=(1+Math.abs(x2-x1))*scene._webgl.pickScale;var height=(1+Math.abs(y2-y1))*scene._webgl.pickScale;this.renderPickingPass(gl,scene,viewarea._last_mat_view,viewarea._last_mat_scene,from,sceneSize,0,x,y,(width<1)?1:width,(height<1)?1:height);var index;var pickedObjects=[];for(index=0;scene._webgl.fboPick.pixelData&&index0) +pickedObjects.push(objId);} +pickedObjects.sort();var pickedObjectsTemp=(function(arr){var a=[],l=arr.length;for(var i=0;i=baseID) +{objId-=baseID;if(scene._multiPartMap){var mp,multiPart,colorMap,emissiveMap,specularMap,visibilityMap,partID;for(mp=0;mp=multiPart._minId&&objId<=multiPart._maxId){partID=multiPart._idMap.mapping[objId-multiPart._minId].name;hitObject=new x3dom.Parts(multiPart,[objId],colorMap,emissiveMap,specularMap,visibilityMap);pickedNode={"partID":partID,"part":hitObject};pickedNodes.push(pickedNode);}}}} +else +{hitObject=x3dom.nodeTypes.Shape.idMap.nodeID[objId];hitObject=(hitObject&&hitObject._xmlNode)?hitObject._xmlNode:null;if(hitObject) +pickedNodes.push(hitObject);}} +return pickedNodes;};Context.prototype.renderScene=function(viewarea) +{var gl=this.ctx3d;var scene=viewarea._scene;if(gl===null||scene===null){return;} +var rentex=viewarea._doc._nodeBag.renderTextures;var rt_tex,rtl_i,rtl_n=rentex.length;var texProp=null;var type=gl.UNSIGNED_BYTE;var shadowType=gl.UNSIGNED_BYTE;var nearestFilt=false;if(x3dom.caps.FP_TEXTURES&&!x3dom.caps.MOBILE){type=gl.FLOAT;shadowType=gl.FLOAT;if(!x3dom.caps.FPL_TEXTURES){nearestFilt=true;}} +var shadowedLights,numShadowMaps;var i,j,n,size,sizeAvailable;var texType,refinementPos;var vertices=[-1,-1,1,-1,-1,1,-1,1,1,-1,1,1];scene.updateVolume();if(!scene._webgl) +{scene._webgl={};this.setupFgnds(gl,scene);scene._webgl.pickScale=0.5;scene._webgl._currFboWidth=Math.round(this.canvas.width*scene._webgl.pickScale);scene._webgl._currFboHeight=Math.round(this.canvas.height*scene._webgl.pickScale);scene._webgl.fboPick=x3dom.Utils.initFBO(gl,scene._webgl._currFboWidth,scene._webgl._currFboHeight,gl.UNSIGNED_BYTE,false,true);scene._webgl.fboPick.pixelData=null;scene._webgl.normalShader=this.cache.getShader(gl,x3dom.shader.NORMAL);scene._webgl.fboShadow=[];shadowedLights=viewarea.getShadowedLights();n=shadowedLights.length;for(i=0;i0||x3dom.SSAO.isEnabled(scene)) +scene._webgl.fboScene=x3dom.Utils.initFBO(gl,this.canvas.width,this.canvas.height,shadowType,false,true);scene._webgl.fboBlur=[];for(i=0;i0)&&typeof scene._webgl.fboScene=="undefined"||scene._webgl.fboScene&&(this.canvas.width!=scene._webgl.fboScene.width||this.canvas.height!=scene._webgl.fboScene.height)){scene._webgl.fboScene=x3dom.Utils.initFBO(gl,this.canvas.width,this.canvas.height,shadowType,false,true);}} +var env=scene.getEnvironment();env.checkSanity();var bgnd=scene.getBackground();this.setupScene(gl,bgnd);this.numFaces=0;this.numCoords=0;this.numDrawCalls=0;var mat_proj=viewarea.getProjectionMatrix();var mat_view=viewarea.getViewMatrix();if(!this._calledViewpointChangedHandler||!viewarea._last_mat_view.equals(mat_view)){var e_viewpoint=scene.getViewpoint();var e_eventType="viewpointChanged";try{if(e_viewpoint._xmlNode&&(e_viewpoint._xmlNode["on"+e_eventType]||e_viewpoint._xmlNode.hasAttribute("on"+e_eventType)||e_viewpoint._listeners[e_eventType])){var e_viewtrafo=e_viewpoint.getCurrentTransform();e_viewtrafo=e_viewtrafo.inverse().mult(mat_view);var e_mat=e_viewtrafo.inverse();var e_rotation=new x3dom.fields.Quaternion(0,0,1,0);e_rotation.setValue(e_mat);var e_translation=e_mat.e3();var e_event={target:e_viewpoint._xmlNode,type:e_eventType,matrix:e_viewtrafo,position:e_translation,orientation:e_rotation.toAxisAngle(),cancelBubble:false,stopPropagation:function(){this.cancelBubble=true;},preventDefault:function(){this.cancelBubble=true;}};e_viewpoint.callEvtHandler(("on"+e_eventType),e_event);this._calledViewpointChangedHandler=true;}} +catch(e_e){x3dom.debug.logException(e_e);}} +viewarea._last_mat_view=mat_view;viewarea._last_mat_proj=mat_proj;var mat_scene=mat_proj.mult(mat_view);viewarea._last_mat_scene=mat_scene;scene.drawableCollection=null;if(!scene.drawableCollection) +{var drawableCollectionConfig={viewArea:viewarea,sortTrans:env._vf.sortTrans,viewMatrix:mat_view,projMatrix:mat_proj,sceneMatrix:mat_scene,frustumCulling:true,smallFeatureThreshold:env._smallFeatureThreshold,context:this,gl:gl};scene.drawableCollection=new x3dom.DrawableCollection(drawableCollectionConfig);x3dom.Utils.startMeasure('traverse');scene.collectDrawableObjects(x3dom.fields.SFMatrix4f.identity(),scene.drawableCollection,true,false,0,[]);var traverseTime=x3dom.Utils.stopMeasure('traverse');this.x3dElem.runtime.addMeasurement('TRAVERSE',traverseTime);} +x3dom.Utils.startMeasure('sorting');scene.drawableCollection.sort();var sortTime=x3dom.Utils.stopMeasure('sorting');this.x3dElem.runtime.addMeasurement('SORT',sortTime);var slights=viewarea.getLights();var numLights=slights.length;var mat_light;var WCToLCMatrices=[];var lMatrices=[];var shadowCount=0;x3dom.Utils.startMeasure('shadow');for(var p=0;p0.0){var lightMatrix=viewarea.getLightMatrix()[p];shadowMaps=scene._webgl.fboShadow[shadowCount];var offset=Math.max(0.0,Math.min(1.0,slights[p]._vf.shadowOffset));if(!x3dom.isa(slights[p],x3dom.nodeTypes.PointLight)){var numCascades=Math.max(1,Math.min(slights[p]._vf.shadowCascades,6));mat_light=viewarea.getWCtoLCMatricesCascaded(lightMatrix,slights[p],mat_proj);for(i=0;i0||x3dom.SSAO.isEnabled(scene)){this.renderShadowPass(gl,viewarea,mat_scene,mat_view,scene._webgl.fboScene,0.0,true);var shadowTime=x3dom.Utils.stopMeasure('shadow');this.x3dElem.runtime.addMeasurement('SHADOW',shadowTime);} +else{this.x3dElem.runtime.removeMeasurement('SHADOW');} +mat_light=viewarea.getWCtoLCMatrix(viewarea.getLightMatrix()[0]);for(rtl_i=0;rtl_i0) +this.renderShadows(gl,viewarea,shadowedLights,WCToLCMatrices,lMatrices,mat_view,mat_proj,mat_scene);this.stateManager.disable(gl.BLEND);this.stateManager.disable(gl.DEPTH_TEST);viewarea._numRenderedNodes=n;if(x3dom.SSAO.isEnabled(scene)) +x3dom.SSAO.renderSSAO(this.stateManager,gl,scene,this.canvas);if(viewarea._visDbgBuf!==undefined&&viewarea._visDbgBuf) +{var pm=scene._vf.pickMode.toLowerCase();if(pm.indexOf("idbuf")==0||pm=="color"||pm=="texcoord"){this.stateManager.viewport(0,3*this.canvas.height/4,this.canvas.width/4,this.canvas.height/4);scene._fgnd._webgl.render(gl,scene._webgl.fboPick.tex);} +if(shadowCount>0||x3dom.SSAO.isEnabled(scene)){this.stateManager.viewport(this.canvas.width/4,3*this.canvas.height/4,this.canvas.width/4,this.canvas.height/4);scene._fgnd._webgl.render(gl,scene._webgl.fboScene.tex);} +var row=3,col=2;for(i=0;i1){sp.lastTex=1;gl.activeTexture(gl.TEXTURE1);gl.bindTexture(gl.TEXTURE_2D,rt._webgl.fbo.tex);gl.texParameteri(gl.TEXTURE_2D,gl.TEXTURE_MAG_FILTER,gl.NEAREST);gl.texParameteri(gl.TEXTURE_2D,gl.TEXTURE_MIN_FILTER,gl.NEAREST);gl.texParameteri(gl.TEXTURE_2D,gl.TEXTURE_WRAP_S,gl.CLAMP_TO_EDGE);gl.texParameteri(gl.TEXTURE_2D,gl.TEXTURE_WRAP_T,gl.CLAMP_TO_EDGE);} +sp.curTex=2;gl.activeTexture(gl.TEXTURE2);gl.bindTexture(gl.TEXTURE_2D,rt._webgl.texture);gl.texParameteri(gl.TEXTURE_2D,gl.TEXTURE_MAG_FILTER,gl.NEAREST);gl.texParameteri(gl.TEXTURE_2D,gl.TEXTURE_MIN_FILTER,gl.NEAREST);gl.texParameteri(gl.TEXTURE_2D,gl.TEXTURE_WRAP_S,gl.CLAMP_TO_EDGE);gl.texParameteri(gl.TEXTURE_2D,gl.TEXTURE_WRAP_T,gl.CLAMP_TO_EDGE);sp.mode=rt._currLoadLevel-1;sp.repeat=rt._repeat.toGL();gl.drawArrays(gl.TRIANGLES,0,6);this.stateManager.bindFramebuffer(gl.FRAMEBUFFER,rt._webgl.fbo.fbo);gl.clear(gl.COLOR_BUFFER_BIT|gl.DEPTH_BUFFER_BIT);sp.mode=0;sp.curTex=2;gl.activeTexture(gl.TEXTURE2);gl.bindTexture(gl.TEXTURE_2D,refinementFbo.tex);gl.texParameteri(gl.TEXTURE_2D,gl.TEXTURE_MAG_FILTER,gl.NEAREST);gl.texParameteri(gl.TEXTURE_2D,gl.TEXTURE_MIN_FILTER,gl.NEAREST);gl.texParameteri(gl.TEXTURE_2D,gl.TEXTURE_WRAP_S,gl.CLAMP_TO_EDGE);gl.texParameteri(gl.TEXTURE_2D,gl.TEXTURE_WRAP_T,gl.CLAMP_TO_EDGE);gl.drawArrays(gl.TRIANGLES,0,6);gl.activeTexture(gl.TEXTURE0);gl.bindTexture(gl.TEXTURE_2D,null);gl.disableVertexAttribArray(sp.position);this.stateManager.bindFramebuffer(gl.FRAMEBUFFER,null);this.stateManager.viewport(0,0,this.canvas.width,this.canvas.height);if(rt._vf.autoRefinement) +rt.nextLevel();if(rt._currLoadLevel==rt._vf.maxLevel) +rt._currLoadLevel++;if(rt._webgl.fbo.mipMap){gl.bindTexture(gl.TEXTURE_2D,rt._webgl.fbo.tex);gl.generateMipmap(gl.TEXTURE_2D);gl.bindTexture(gl.TEXTURE_2D,null);} +if(!rt.requirePingPong()){gl.deleteTexture(rt._webgl.texture);delete rt._webgl.texture;rt._cleanupGLObjects(true);} +rt._renderedImage++;};Context.prototype.renderRTPass=function(gl,viewarea,rt) +{if(x3dom.isa(rt,x3dom.nodeTypes.RefinementTexture)){if(rt.requirePingPong()){this.renderPingPongPass(gl,viewarea,rt);} +return;} +switch(rt._vf.update.toUpperCase()){case"NONE":return;case"NEXT_FRAME_ONLY":if(!rt._needRenderUpdate){return;} +rt._needRenderUpdate=false;break;case"ALWAYS":default:break;} +var scene=viewarea._scene;var bgnd=null;var mat_view=rt.getViewMatrix();var mat_proj=rt.getProjectionMatrix();var mat_scene=mat_proj.mult(mat_view);var lightMatrix=viewarea.getLightMatrix()[0];var mat_light=viewarea.getWCtoLCMatrix(lightMatrix);var i,n,m=rt._cf.excludeNodes.nodes.length;var arr=new Array(m);for(i=0;i0||s_gl.popGeometry>0){for(v=0,offset=0,v_n=s_geo._vf.vertexCount.length;vtexLimit){renderSplit[renderSplit.length]=i;texUnits=7;}} +renderSplit[renderSplit.length]=shadowedLights.length;var n=renderSplit.length-1;var mat_proj_inv=mat_proj.inverse();var mat_scene_inv=mat_scene.inverse();this.stateManager.enable(gl.BLEND);this.stateManager.blendFunc(gl.DST_COLOR,gl.ZERO);for(var s=0;s0){var RefList=[];for(var i=0;i0){viewarea._pickingInfo.pickPos=new x3dom.fields.SFVec3f(data.pickPosX,data.pickPosY,data.pickPosZ);viewarea._pickingInfo.pickObj=x3dom.nodeTypes.Shape.idMap.nodeID[data.objID];}else{viewarea._pickingInfo.pickObj=null;viewarea._pickingInfo.lastClickObj=null;} +return true;};Context.prototype.shutdown=function(viewarea){};return setupContext;})();x3dom.NodeNameSpace=function(name,document){this.name=name;this.doc=document;this.baseURL="";this.defMap={};this.parent=null;this.childSpaces=[];};x3dom.NodeNameSpace.prototype.addNode=function(node,name){this.defMap[name]=node;node._nameSpace=this;};x3dom.NodeNameSpace.prototype.removeNode=function(name){var node=name?this.defMap[name]:null;if(node){delete this.defMap[name];node._nameSpace=null;}};x3dom.NodeNameSpace.prototype.getNamedNode=function(name){return this.defMap[name];};x3dom.NodeNameSpace.prototype.getNamedElement=function(name){var node=this.defMap[name];return(node?node._xmlNode:null);};x3dom.NodeNameSpace.prototype.addSpace=function(space){this.childSpaces.push(space);space.parent=this;};x3dom.NodeNameSpace.prototype.removeSpace=function(space){space.parent=null;for(var it=0;it=0)?url.substr(0,i+1):"";x3dom.debug.logInfo("setBaseURL: "+this.baseURL);};x3dom.NodeNameSpace.prototype.getURL=function(url){if(url===undefined||!url.length){return"";} +else{return((url[0]==='/')||(url.indexOf(":")>=0))?url:(this.baseURL+url);}};x3dom.hasElementAttribute=function(attrName) +{var ok=this.__hasAttribute(attrName);if(!ok&&attrName){ok=this.__hasAttribute(attrName.toLowerCase());} +return ok;};x3dom.getElementAttribute=function(attrName) +{var attrib=this.__getAttribute(attrName);if(!attrib&&attrib!=""&&attrName){attrib=this.__getAttribute(attrName.toLowerCase());} +if(attrib||!this._x3domNode){return attrib;} +else{return this._x3domNode._vf[attrName];}};x3dom.setElementAttribute=function(attrName,newVal) +{this.__setAttribute(attrName,newVal);var x3dNode=this._x3domNode;if(x3dNode){x3dNode.updateField(attrName,newVal);x3dNode._nameSpace.doc.needRender=true;}};x3dom.getFieldValue=function(fieldName) +{var x3dNode=this._x3domNode;if(x3dNode&&x3dNode._vf[fieldName]){return x3dNode._vf[fieldName].copy();} +return null;};x3dom.setFieldValue=function(fieldName,fieldvalue){var x3dNode=this._x3domNode;if(x3dNode&&x3dNode._vf[fieldName]){if(fieldvalue instanceof Object&&'copy'in fieldvalue) +{x3dNode._vf[fieldName]=fieldvalue.copy();} +else +x3dNode._vf[fieldName]=fieldvalue;x3dNode.fieldChanged(fieldName);x3dNode._nameSpace.doc.needRender=true;}};x3dom.requestFieldRef=function(fieldName) +{var x3dNode=this._x3domNode;if(x3dNode&&x3dNode._vf[fieldName]) +{return x3dNode._vf[fieldName];} +return null;};x3dom.releaseFieldRef=function(fieldName) +{var x3dNode=this._x3domNode;if(x3dNode&&x3dNode._vf[fieldName]) +{x3dNode.fieldChanged(fieldName);x3dNode._nameSpace.doc.needRender=true;}};x3dom.NodeNameSpace.prototype.setupTree=function(domNode){var n=null;if(x3dom.isX3DElement(domNode)){if(domNode._x3domNode){x3dom.debug.logWarning('Tree is already initialized');return null;} +if((domNode.tagName!==undefined)&&(!domNode.__addEventListener)&&(!domNode.__removeEventListener)) +{domNode.__addEventListener=domNode.addEventListener;domNode.addEventListener=function(type,func,phase){if(!this._x3domNode._listeners[type]){this._x3domNode._listeners[type]=[];} +this._x3domNode._listeners[type].push(func);this.__addEventListener(type,func,phase);};domNode.__removeEventListener=domNode.removeEventListener;domNode.removeEventListener=function(type,func,phase){var list=this._x3domNode._listeners[type];if(list){for(var it=0;it=2){var otherNS=this;while(otherNS){if(otherNS.name==nsName[0]) +n=otherNS.defMap[nsName[1]];if(n) +otherNS=null;else +otherNS=otherNS.parent;} +if(!n){n=null;x3dom.debug.logWarning('Could not USE: '+domNode.getAttribute('USE'));}}} +if(n){domNode._x3domNode=n;} +return n;} +else{if(domNode.localName.toLowerCase()==='route'){var route=domNode;var fnAtt=route.getAttribute('fromNode')||route.getAttribute('fromnode');var tnAtt=route.getAttribute('toNode')||route.getAttribute('tonode');var fromNode=this.defMap[fnAtt];var toNode=this.defMap[tnAtt];if(!(fromNode&&toNode)){x3dom.debug.logWarning("Broken route - can't find all DEFs for "+fnAtt+" -> "+tnAtt);} +else{fnAtt=route.getAttribute('fromField')||route.getAttribute('fromfield');tnAtt=route.getAttribute('toField')||route.getAttribute('tofield');fromNode.setupRoute(fnAtt,toNode,tnAtt);route._nodeNameSpace=this;} +return null;} +domNode.requestFieldRef=x3dom.requestFieldRef;domNode.releaseFieldRef=x3dom.releaseFieldRef;domNode.getFieldValue=x3dom.getFieldValue;domNode.setFieldValue=x3dom.setFieldValue;var nodeType=x3dom.nodeTypesLC[domNode.localName.toLowerCase()];if(nodeType===undefined){x3dom.debug.logWarning("Unrecognised X3D element <"+domNode.localName+">.");} +else{if((x3dom.userAgentFeature.supportsDOMAttrModified===false)&&(domNode instanceof Element)){if(domNode.setAttribute&&!domNode.__setAttribute){domNode.__setAttribute=domNode.setAttribute;domNode.setAttribute=x3dom.setElementAttribute;} +if(domNode.getAttribute&&!domNode.__getAttribute){domNode.__getAttribute=domNode.getAttribute;domNode.getAttribute=x3dom.getElementAttribute;} +if(domNode.hasAttribute&&!domNode.__hasAttribute){domNode.__hasAttribute=domNode.hasAttribute;domNode.hasAttribute=x3dom.hasElementAttribute;}} +var ctx={doc:this.doc,xmlNode:domNode,nameSpace:this};n=new nodeType(ctx);if(domNode.hasAttribute('DEF')){n._DEF=domNode.getAttribute('DEF');this.defMap[n._DEF]=n;} +else{if(domNode.hasAttribute('id')){n._DEF=domNode.getAttribute('id');this.defMap[n._DEF]=n;}} +if(domNode.highlight===undefined) +{domNode.highlight=function(enable,colorStr){var color=x3dom.fields.SFColor.parse(colorStr);this._x3domNode.highlight(enable,color);this._x3domNode._nameSpace.doc.needRender=true;};} +n._xmlNode=domNode;domNode._x3domNode=n;var that=this;Array.forEach(domNode.childNodes,function(childDomNode){var c=that.setupTree(childDomNode);if(c){n.addChild(c,childDomNode.getAttribute("containerField"));}});n.nodeChanged();return n;}}} +else if(domNode.localName){x3dom.debug.logWarning("Unrecognised X3D element <"+domNode.localName+">.");n=null;} +return n;};x3dom.registerNodeType("X3DNode","Core",defineClass(null,function(ctx){this._xmlNode=null;this._DEF=null;this._nameSpace=(ctx&&ctx.nameSpace)?ctx.nameSpace:null;this._vf={};this._vfFieldTypes={};this._cf={};this._cfFieldTypes={};this._fieldWatchers={};this._routes={};this._listeners={};this._parentNodes=[];this._childNodes=[];this.addField_SFNode('metadata',x3dom.nodeTypes.X3DMetadataObject);},{type:function(){return this.constructor;},typeName:function(){return this.constructor._typeName;},addChild:function(node,containerFieldName){if(node){var field=null;if(containerFieldName){field=this._cf[containerFieldName];} +else{for(var fieldName in this._cf){if(this._cf.hasOwnProperty(fieldName)){var testField=this._cf[fieldName];if(x3dom.isa(node,testField.type)){field=testField;break;}}}} +if(field&&field.addLink(node)){node._parentNodes.push(this);this._childNodes.push(node);node.parentAdded(this);return true;}} +return false;},removeChild:function(node){if(node){for(var fieldName in this._cf){if(this._cf.hasOwnProperty(fieldName)){var field=this._cf[fieldName];if(field.rmLink(node)){for(var i=node._parentNodes.length-1;i>=0;i--){if(node._parentNodes[i]===this){node._parentNodes.splice(i,1);node.parentRemoved(this);}} +for(var j=this._childNodes.length-1;j>=0;j--){if(this._childNodes[j]===node){node.onRemove();this._childNodes.splice(j,1);return true;}}}}}} +return false;},onRemove:function(){},parentAdded:function(parent){},parentRemoved:function(parent){for(var i=0,n=this._childNodes.length;i=1){return this.transformMatrix(this._parentNodes[0].getCurrentTransform());} +else{return x3dom.fields.SFMatrix4f.identity();}},transformMatrix:function(transform){return transform;},getVolume:function(){return null;},invalidateVolume:function(){},invalidateCache:function(){},volumeValid:function(){return false;},collectDrawableObjects:function(transform,drawableCollection,singlePath,invalidateCache,planeMask,clipPlanes){},highlight:function(enable,color) +{if(this._vf.hasOwnProperty("diffuseColor")) +{if(enable){if(this._actDiffuseColor===undefined){this._actDiffuseColor=new x3dom.fields.SFColor();this._highlightOn=false;} +if(!this._highlightOn){this._actDiffuseColor.setValues(this._vf.diffuseColor);this._highlightOn=true;} +this._vf.diffuseColor.setValues(color);} +else{if(this._actDiffuseColor!==undefined){this._vf.diffuseColor.setValues(this._actDiffuseColor);this._highlightOn=false;delete this._actDiffuseColor;}}} +for(var i=0,n=this._childNodes.length;i0){fieldName=fromField.substr(0,fromField.length-post.length);if(this._vf[fieldName]){fromField=fieldName;}}}} +if(!toNode._vf[toField]){pos=toField.indexOf(pre);if(pos===0){fieldName=toField.substr(pre.length,toField.length-1);if(toNode._vf[fieldName]){toField=fieldName;}} +else{pos=toField.indexOf(post);if(pos>0){fieldName=toField.substr(0,toField.length-post.length);if(toNode._vf[fieldName]){toField=fieldName;}}}} +var where=this._DEF+"&"+fromField+"&"+toNode._DEF+"&"+toField;if(!this._routes[where]){if(!this._fieldWatchers[fromField]){this._fieldWatchers[fromField]=[];} +this._fieldWatchers[fromField].push(function(msg){toNode.postMessage(toField,msg);});if(!toNode._fieldWatchers[toField]){toNode._fieldWatchers[toField]=[];} +toNode._fieldWatchers[toField].push(function(msg){toNode._vf[toField]=msg;toNode.fieldChanged(toField);});this._routes[where]={from:this._fieldWatchers[fromField].length-1,to:toNode._fieldWatchers[toField].length-1};}},removeRoute:function(fromField,toNode,toField){var pos;var fieldName;var pre="set_",post="_changed";if(!this._vf[fromField]){pos=fromField.indexOf(pre);if(pos===0){fieldName=fromField.substr(pre.length,fromField.length-1);if(this._vf[fieldName]){fromField=fieldName;}}else{pos=fromField.indexOf(post);if(pos>0){fieldName=fromField.substr(0,fromField.length-post.length);if(this._vf[fieldName]){fromField=fieldName;}}}} +if(!toNode._vf[toField]){pos=toField.indexOf(pre);if(pos===0){fieldName=toField.substr(pre.length,toField.length-1);if(toNode._vf[fieldName]){toField=fieldName;}} +else{pos=toField.indexOf(post);if(pos>0){fieldName=toField.substr(0,toField.length-post.length);if(toNode._vf[fieldName]){toField=fieldName;}}}} +var where=this._DEF+"&"+fromField+"&"+toNode._DEF+"&"+toField;if(this._routes[where]){this._fieldWatchers[fromField].splice(this._routes[where].from,1);toNode._fieldWatchers[toField].splice(this._routes[where].to,1);delete this._routes[where];}},fieldChanged:function(fieldName){},nodeChanged:function(){},callEvtHandler:function(eventType,event){var node=this;if(!node._xmlNode){return event.cancelBubble;} +try{var attrib=node._xmlNode[eventType];event.target=node._xmlNode;if(typeof(attrib)==="function"){attrib.call(node._xmlNode,event);} +else{var funcStr=node._xmlNode.getAttribute(eventType);var func=new Function('event',funcStr);func.call(node._xmlNode,event);} +var list=node._listeners[event.type];if(list){for(var it=0;it=0){this.bind(this._vf.bind);}},nodeChanged:function(){this._stack=this._nameSpace.doc._bindableBag.addBindable(this);}}));x3dom.registerNodeType("X3DInfoNode","Core",defineClass(x3dom.nodeTypes.X3DChildNode,function(ctx){x3dom.nodeTypes.X3DInfoNode.superClass.call(this,ctx);}));x3dom.registerNodeType("WorldInfo","Core",defineClass(x3dom.nodeTypes.X3DInfoNode,function(ctx){x3dom.nodeTypes.WorldInfo.superClass.call(this,ctx);this.addField_MFString(ctx,'info',[]);this.addField_SFString(ctx,'title',"");x3dom.debug.logInfo(this._vf.info);x3dom.debug.logInfo(this._vf.title);}));x3dom.registerNodeType("X3DSensorNode","Core",defineClass(x3dom.nodeTypes.X3DChildNode,function(ctx){x3dom.nodeTypes.X3DSensorNode.superClass.call(this,ctx);this.addField_SFBool(ctx,'enabled',true);}));x3dom.registerNodeType("Param","Core",defineClass(x3dom.nodeTypes.X3DNode,function(ctx){x3dom.nodeTypes.Param.superClass.call(this,ctx);x3dom.debug.logWarning('DEPRECATED: Param element needs to be child of X3D element ' ++'[DOCS]');}));x3dom.registerNodeType("X3DBoundedObject","Grouping",defineClass(x3dom.nodeTypes.X3DChildNode,function(ctx){x3dom.nodeTypes.X3DBoundedObject.superClass.call(this,ctx);this.addField_SFBool(ctx,'render',true);this.addField_SFVec3f(ctx,'bboxCenter',0,0,0);this.addField_SFVec3f(ctx,'bboxSize',-1,-1,-1);this._graph={boundedNode:this,localMatrix:x3dom.fields.SFMatrix4f.identity(),globalMatrix:null,volume:new x3dom.fields.BoxVolume(),worldVolume:new x3dom.fields.BoxVolume(),center:new x3dom.fields.SFVec3f(0,0,0),coverage:-1,needCulling:true};},{fieldChanged:function(fieldName){if(this._vf.hasOwnProperty(fieldName)){this.invalidateVolume();}},nodeChanged:function(){this.invalidateVolume();},parentAdded:function(parent){this.invalidateVolume();},getVolume:function() +{var vol=this._graph.volume;if(!this.volumeValid()&&this._vf.render) +{for(var i=0,n=this._childNodes.length;i1)) +singlePath=false;if(singlePath&&(invalidateCache=invalidateCache||this.cacheInvalid())) +this.invalidateCache();planeMask=drawableCollection.cull(transform,this.graphState(),singlePath,planeMask);if(planeMask<=0){return;} +var cnode,childTransform;if(singlePath){if(!this._graph.globalMatrix){this._graph.globalMatrix=this.transformMatrix(transform);} +childTransform=this._graph.globalMatrix;} +else{childTransform=this.transformMatrix(transform);} +var n=this._childNodes.length;if(x3dom.nodeTypes.ClipPlane.count>0){var localClipPlanes=[];for(var j=0;j=0&&this._vf.whichChoice1)) +singlePath=false;if(singlePath&&(invalidateCache=invalidateCache||this.cacheInvalid())) +this.invalidateCache();if(this._vf.whichChoice<0||this._vf.whichChoice>=this._childNodes.length||(planeMask=drawableCollection.cull(transform,this.graphState(),singlePath,planeMask))<=0){return;} +var cnode,childTransform;if(singlePath){if(!this._graph.globalMatrix){this._graph.globalMatrix=this.transformMatrix(transform);} +childTransform=this._graph.globalMatrix;} +else{childTransform=this.transformMatrix(transform);} +if((cnode=this._childNodes[this._vf.whichChoice])){cnode.collectDrawableObjects(childTransform,drawableCollection,singlePath,invalidateCache,planeMask,clipPlanes);}},doIntersect:function(line) +{if(this._vf.whichChoice<0||this._vf.whichChoice>=this._childNodes.length){return false;} +var child=this._childNodes[this._vf.whichChoice];if(child){return child.doIntersect(line);} +return false;}}));x3dom.registerNodeType("X3DTransformNode","Grouping",defineClass(x3dom.nodeTypes.X3DGroupingNode,function(ctx){x3dom.nodeTypes.X3DTransformNode.superClass.call(this,ctx);if(ctx) +ctx.doc._nodeBag.trans.push(this);else +x3dom.debug.logWarning("X3DTransformNode: No runtime context found!");this._trafo=null;this._needCssStyleUpdates=true;},{tick:function(t) +{var dom=this._xmlNode;if(dom&&(dom['ontransform']||dom.hasAttribute('ontransform')||this._listeners['transform'])){var transMatrix=this.getCurrentTransform();var event={target:dom,type:'transform',worldX:transMatrix._03,worldY:transMatrix._13,worldZ:transMatrix._23,cancelBubble:false,stopPropagation:function(){this.cancelBubble=true;}};this.callEvtHandler("ontransform",event);} +if(this._needCssStyleUpdates&&dom){var trans=x3dom.getStyle(dom,"-webkit-transform")||x3dom.getStyle(dom,"-moz-transform")||x3dom.getStyle(dom,"-ms-transform")||x3dom.getStyle(dom,"transform");if(trans&&(trans!='none')){this._trafo.setValueByStr(trans);this.invalidateVolume();return true;} +this._needCssStyleUpdates=false;} +return false;},transformMatrix:function(transform){return transform.mult(this._trafo);},getVolume:function() +{var vol=this._graph.volume;if(!this.volumeValid()&&this._vf.render) +{this._graph.localMatrix=this._trafo;for(var i=0,n=this._childNodes.length;i1)) +singlePath=false;if(singlePath&&(invalidateCache=invalidateCache||this.cacheInvalid())) +this.invalidateCache();planeMask=drawableCollection.cull(transform,this.graphState(),singlePath,planeMask);if(planeMask<=0){return;} +var cnode,childTransform;if(singlePath){if(!this._graph.globalMatrix){this._graph.globalMatrix=this.transformMatrix(transform);} +childTransform=this._graph.globalMatrix;} +else{childTransform=this.transformMatrix(transform);} +if(this.needBvhRebuild) +{var drawableCollectionConfig={viewArea:drawableCollection.viewarea,sortTrans:drawableCollection.sortTrans,viewMatrix:drawableCollection.viewMatrix,projMatrix:drawableCollection.projMatrix,sceneMatrix:drawableCollection.sceneMatrix,frustumCulling:false,smallFeatureThreshold:0,context:drawableCollection.context};this.drawableCollection=new x3dom.DrawableCollection(drawableCollectionConfig);var i,n=this._childNodes.length;for(i=0;i0) +{that._idList=[];var arr=x3dom.fields.MFString.parse(evt.data);var n=Math.min(arr.length,Math.abs(that._vf.maxRenderedIds));for(var i=0;i0){nodeName=nodeName.substring(0,starInd);matchNameBegin=true;} +if(nodeName.length<=1) +continue;if((matchNameBegin&&this._vf.label[i].indexOf(nodeName)==0)||this._vf.label[i]==nodeName){this._visibleList[i]=false;break;}}} +else{this._visibleList[i]=false;}} +this.invalidateVolume();} +else if(fieldName=="render"){this.invalidateVolume();}},getNumRenderedObjects:function(len,isMoving) +{var n=len;if(this._vf.maxRenderedIds>0) +{var num=Math.max(this._vf.maxRenderedIds,16);var scale=1;if(isMoving) +scale=Math.min(this._vf.scaleRenderedIdsOnMove,1);num=Math.max(Math.round(scale*num),0);n=Math.min(n,num);} +return n;},collectDrawableObjects:function(transform,drawableCollection,singlePath,invalidateCache,planeMask,clipPlanes) +{if(singlePath&&(this._parentNodes.length>1)) +singlePath=false;if(singlePath&&(invalidateCache=invalidateCache||this.cacheInvalid())) +this.invalidateCache();planeMask=drawableCollection.cull(transform,this.graphState(),singlePath,planeMask);if(planeMask<=0){return;} +var viewarea=this._nameSpace.doc._viewarea;var isMoving=viewarea.isMovingOrAnimating();var ts=new Date().getTime();var maxLiveTime=10000;var i,n,numChild=this._childNodes.length;if(!this._vf.enableCulling) +{n=this.getNumRenderedObjects(numChild,isMoving);var cnt=0;for(i=0;i0&&ts-this._createTime[i]>maxLiveTime&&shape._cleanupGLObjects) +{shape._cleanupGLObjects(true);this._createTime[i]=0;}}} +return;} +if(this._websocket) +this._websocket.updateCamera();if(this._vf.label.length) +{n=this.getNumRenderedObjects(this._idList.length,isMoving);for(i=0;i0&&ts-this._createTime[i]>maxLiveTime&&this._childNodes[i]._cleanupGLObjects) +{this._childNodes[i]._cleanupGLObjects(true);this._createTime[i]=0;}}}}}));x3dom.registerNodeType("Scene","Grouping",defineClass(x3dom.nodeTypes.X3DGroupingNode,function(ctx){x3dom.nodeTypes.Scene.superClass.call(this,ctx);this.addField_SFString(ctx,'pickMode',"idBuf");this.addField_SFBool(ctx,'doPickPass',true);this.addField_SFString(ctx,'shadowObjectIdMapping',"");this._lastMin=new x3dom.fields.SFVec3f(0,0,0);this._lastMax=new x3dom.fields.SFVec3f(1,1,1);this._shadowIdMap=null;this.loadMapping();this._multiPartMap=null;},{fieldChanged:function(fieldName) +{if(fieldName=="shadowObjectIdMapping") +{this.loadMapping();}},updateVolume:function() +{var vol=this.getVolume();if(vol.isValid()) +{this._lastMin=x3dom.fields.SFVec3f.copy(vol.min);this._lastMax=x3dom.fields.SFVec3f.copy(vol.max);}},loadMapping:function() +{this._shadowIdMap=null;if(this._vf.shadowObjectIdMapping.length==0){return;} +var that=this;var xhr=new XMLHttpRequest();xhr.open("GET",this._nameSpace.getURL(this._vf.shadowObjectIdMapping),true);xhr.send();xhr.onload=function() +{that._shadowIdMap=eval("("+xhr.response+")");if(!that._shadowIdMap||!that._shadowIdMap.mapping){x3dom.debug.logWarning("Invalid ID map: "+that._vf.shadowObjectIdMapping);} +else{x3dom.debug.assert(that._shadowIdMap.maxID<=that._shadowIdMap.mapping.length,"Too few ID map entries in "+that._vf.shadowObjectIdMapping+", "+"length of mapping array is only "+that._shadowIdMap.mapping.length+" instead of "+that._shadowIdMap.ids.length+"!");}};}}));x3dom.BindableStack=function(doc,type,defaultType,getter){this._doc=doc;this._type=type;this._defaultType=defaultType;this._defaultRoot=null;this._getter=getter;this._bindBag=[];this._bindStack=[];};x3dom.BindableStack.prototype.top=function(){return((this._bindStack.length>0)?this._bindStack[this._bindStack.length-1]:null);};x3dom.BindableStack.prototype.push=function(bindable){var top=this.top();if(top===bindable){return;} +if(top){top.deactivate();} +this._bindStack.push(bindable);bindable.activate(top);};x3dom.BindableStack.prototype.replaceTop=function(bindable){var top=this.top();if(top===bindable){return;} +if(top){top.deactivate();this._bindStack[this._bindStack.length-1]=bindable;bindable.activate(top);}};x3dom.BindableStack.prototype.pop=function(bindable){var top;if(bindable){top=this.top();if(bindable!==top){return null;}} +top=this._bindStack.pop();if(top){top.deactivate();} +return top;};x3dom.BindableStack.prototype.switchTo=function(target){var last=this.getActive();var n=this._bindBag.length;var toBind=0;var i=0,lastIndex=-1;if(n<=1){return;} +switch(target) +{case'first':toBind=this._bindBag[0];break;case'last':toBind=this._bindBag[n-1];break;default:for(i=0;i=0){i=lastIndex;while(!toBind){if(target=='next'){i=(i<(n-1))?(i+1):0;}else{i=(i>0)?(i-1):(n-1);} +if(i==lastIndex){break;} +if(this._bindBag[i]._vf.description.length>=0){toBind=this._bindBag[i];}}} +break;} +if(toBind){this.replaceTop(toBind);}else{x3dom.debug.logWarning('Cannot switch bindable; no other bindable with description found.');}};x3dom.BindableStack.prototype.getActive=function(){if(this._bindStack.length===0){if(this._bindBag.length===0){if(this._defaultRoot){x3dom.debug.logInfo('create new '+this._defaultType._typeName+' for '+this._type._typeName+'-stack');var obj=new this._defaultType({doc:this._doc,nameSpace:this._defaultRoot._nameSpace,autoGen:true});this._defaultRoot.addChild(obj);obj.nodeChanged();} +else{x3dom.debug.logError('stack without defaultRoot');}} +else{x3dom.debug.logInfo('activate first '+this._type._typeName+' for '+this._type._typeName+'-stack');} +this._bindStack.push(this._bindBag[0]);this._bindBag[0].activate();} +return this._bindStack[this._bindStack.length-1];};x3dom.BindableBag=function(doc){this._stacks=[];this.addType("X3DViewpointNode","Viewpoint","getViewpoint",doc);this.addType("X3DNavigationInfoNode","NavigationInfo","getNavigationInfo",doc);this.addType("X3DBackgroundNode","Background","getBackground",doc);this.addType("X3DFogNode","Fog","getFog",doc);this.addType("X3DEnvironmentNode","Environment","getEnvironment",doc);};x3dom.BindableBag.prototype.addType=function(typeName,defaultTypeName,getter,doc){var type=x3dom.nodeTypes[typeName];var defaultType=x3dom.nodeTypes[defaultTypeName];if(type&&defaultType){var stack=new x3dom.BindableStack(doc,type,defaultType,getter);this._stacks.push(stack);} +else{x3dom.debug.logWarning('Invalid Bindable type/defaultType: '+ +typeName+'/'+defaultType);}};x3dom.BindableBag.prototype.setRefNode=function(node){Array.forEach(this._stacks,function(stack){stack._defaultRoot=node;node[stack._getter]=function(){return stack.getActive();};});};x3dom.BindableBag.prototype.addBindable=function(node){for(var i=0,n=this._stacks.length;i=0;return(this._vf.lit&&hasTris);}}));x3dom.registerNodeType("Mesh","Rendering",defineClass(x3dom.nodeTypes.X3DGeometryNode,function(ctx){x3dom.nodeTypes.Mesh.superClass.call(this,ctx);this.addField_SFString(ctx,'primType',"triangle");this.addField_MFInt32(ctx,'index',[]);this.addField_MFNode('vertexAttributes',x3dom.nodeTypes.X3DVertexAttributeNode);},{nodeChanged:function() +{var time0=new Date().getTime();var i,n=this._cf.vertexAttributes.nodes.length;for(i=0;i=0;j--){this._mesh._indices[0].push(cnt++,cnt);if(j==0)cnt++;}}},fieldChanged:function(fieldName){if(fieldName=="coord"){var pnts=this._cf.coord.node.getPoints();this._mesh._positions[0]=pnts.toGL();this.invalidateVolume();Array.forEach(this._parentNodes,function(node){node._dirty.positions=true;node.invalidateVolume();});} +else if(fieldName=="color"){var cols=this._cf.color.node._vf.color;this._mesh._colors[0]=cols.toGL();Array.forEach(this._parentNodes,function(node){node._dirty.colors=true;});}}}));x3dom.registerNodeType("IndexedLineSet","Rendering",defineClass(x3dom.nodeTypes.X3DGeometryNode,function(ctx){x3dom.nodeTypes.IndexedLineSet.superClass.call(this,ctx);this.addField_SFBool(ctx,'colorPerVertex',true);this.addField_MFNode('attrib',x3dom.nodeTypes.X3DVertexAttributeNode);this.addField_SFNode('coord',x3dom.nodeTypes.X3DCoordinateNode);this.addField_SFNode('color',x3dom.nodeTypes.X3DColorNode);this.addField_MFInt32(ctx,'coordIndex',[]);this.addField_MFInt32(ctx,'colorIndex',[]);this._mesh._primType='LINES';x3dom.Utils.needLineWidth=true;},{nodeChanged:function() +{var time0=new Date().getTime();var indexes=this._vf.coordIndex;var colorInd=this._vf.colorIndex;var hasColor=false,hasColorInd=false;var colPerVert=this._vf.colorPerVertex;if(colorInd.length>0) +{hasColorInd=true;} +var positions,colors;var coordNode=this._cf.coord.node;x3dom.debug.assert(coordNode);positions=coordNode.getPoints();var numColComponents=3;var colorNode=this._cf.color.node;if(colorNode) +{hasColor=true;colors=colorNode._vf.color;if(x3dom.isa(colorNode,x3dom.nodeTypes.ColorRGBA)){numColComponents=4;}} +else{hasColor=false;} +this._mesh._indices[0]=[];this._mesh._positions[0]=[];this._mesh._colors[0]=[];var i,t,cnt,lineCnt;var p0,p1,c0,c1;if((hasColor&&hasColorInd)||positions.length>x3dom.Utils.maxIndexableCoords) +{t=0;cnt=0;lineCnt=0;for(i=0;ix3dom.Utils.maxIndexableCoords) +this._mesh.splitMesh(2);} +else +{var n=indexes.length;t=0;for(i=0;i0){positions.push(positions.length-1);} +posMax=positions.length;if(!normPerVert||posMax>x3dom.Utils.maxIndexableCoords) +{t=0;cnt=0;faceCnt=0;this._mesh._multiIndIndices=[];this._mesh._posSize=positions.length;for(i=0;i0)&&(i%3===0)){t=0;faceCnt++;} +switch(t) +{case 0:p0=+indexes[i];if(normPerVert){n0=p0;}else if(!normPerVert){n0=faceCnt;} +t0=p0;if(colPerVert){c0=p0;}else if(!colPerVert){c0=faceCnt;} +t=1;break;case 1:p1=+indexes[i];if(normPerVert){n1=p1;}else if(!normPerVert){n1=faceCnt;} +t1=p1;if(colPerVert){c1=p1;}else if(!colPerVert){c1=faceCnt;} +t=2;break;case 2:p2=+indexes[i];if(normPerVert){n2=p2;}else if(!normPerVert){n2=faceCnt;} +t2=p2;if(colPerVert){c2=p2;}else if(!colPerVert){c2=faceCnt;} +t=3;this._mesh._indices[0].push(cnt++,cnt++,cnt++);this._mesh._positions[0].push(positions[p0].x);this._mesh._positions[0].push(positions[p0].y);this._mesh._positions[0].push(positions[p0].z);this._mesh._positions[0].push(positions[p1].x);this._mesh._positions[0].push(positions[p1].y);this._mesh._positions[0].push(positions[p1].z);this._mesh._positions[0].push(positions[p2].x);this._mesh._positions[0].push(positions[p2].y);this._mesh._positions[0].push(positions[p2].z);if(hasNormal){this._mesh._normals[0].push(normals[n0].x);this._mesh._normals[0].push(normals[n0].y);this._mesh._normals[0].push(normals[n0].z);this._mesh._normals[0].push(normals[n1].x);this._mesh._normals[0].push(normals[n1].y);this._mesh._normals[0].push(normals[n1].z);this._mesh._normals[0].push(normals[n2].x);this._mesh._normals[0].push(normals[n2].y);this._mesh._normals[0].push(normals[n2].z);} +else{this._mesh._multiIndIndices.push(p0,p1,p2);} +if(hasColor){this._mesh._colors[0].push(colors[c0].r);this._mesh._colors[0].push(colors[c0].g);this._mesh._colors[0].push(colors[c0].b);if(numColComponents===4){this._mesh._colors[0].push(colors[c0].a);} +this._mesh._colors[0].push(colors[c1].r);this._mesh._colors[0].push(colors[c1].g);this._mesh._colors[0].push(colors[c1].b);if(numColComponents===4){this._mesh._colors[0].push(colors[c1].a);} +this._mesh._colors[0].push(colors[c2].r);this._mesh._colors[0].push(colors[c2].g);this._mesh._colors[0].push(colors[c2].b);if(numColComponents===4){this._mesh._colors[0].push(colors[c2].a);}} +if(hasTexCoord){this._mesh._texCoords[0].push(texCoords[t0].x);this._mesh._texCoords[0].push(texCoords[t0].y);if(numTexComponents===3){this._mesh._texCoords[0].push(texCoords[t0].z);} +this._mesh._texCoords[0].push(texCoords[t1].x);this._mesh._texCoords[0].push(texCoords[t1].y);if(numTexComponents===3){this._mesh._texCoords[0].push(texCoords[t1].z);} +this._mesh._texCoords[0].push(texCoords[t2].x);this._mesh._texCoords[0].push(texCoords[t2].y);if(numTexComponents===3){this._mesh._texCoords[0].push(texCoords[t2].z);}} +break;default:}} +if(!hasNormal){this._mesh.calcNormals(normPerVert?Math.PI:0);} +if(!hasTexCoord){this._mesh.calcTexCoords(texMode);} +this._mesh.splitMesh();} +else +{faceCnt=0;for(i=0;i0)&&(i%3===0)){faceCnt++;} +this._mesh._indices[0].push(indexes[i]);if(!normPerVert&&hasNormal){this._mesh._normals[0].push(normals[faceCnt].x);this._mesh._normals[0].push(normals[faceCnt].y);this._mesh._normals[0].push(normals[faceCnt].z);} +if(!colPerVert&&hasColor){this._mesh._colors[0].push(colors[faceCnt].r);this._mesh._colors[0].push(colors[faceCnt].g);this._mesh._colors[0].push(colors[faceCnt].b);if(numColComponents===4){this._mesh._colors[0].push(colors[faceCnt].a);}}} +this._mesh._positions[0]=positions.toGL();if(hasNormal){this._mesh._normals[0]=normals.toGL();} +else{this._mesh.calcNormals(normPerVert?Math.PI:0);} +if(hasTexCoord){this._mesh._texCoords[0]=texCoords.toGL();this._mesh._numTexComponents=numTexComponents;} +else{this._mesh.calcTexCoords(texMode);} +if(hasColor&&colPerVert){this._mesh._colors[0]=colors.toGL();this._mesh._numColComponents=numColComponents;}} +this.invalidateVolume();this._mesh._numFaces=0;this._mesh._numCoords=0;for(i=0;ix3dom.Utils.maxIndexableCoords) +{x3dom.debug.logWarning("IndexedTriangleSet: fieldChanged with "+"too many coordinates not yet implemented!");return;} +if(fieldName=="coord") +{this._mesh._positions[0]=pnts.toGL();this.invalidateVolume();Array.forEach(this._parentNodes,function(node){node._dirty.positions=true;node.invalidateVolume();});} +else if(fieldName=="color") +{pnts=this._cf.color.node._vf.color;if(this._vf.colorPerVertex){this._mesh._colors[0]=pnts.toGL();}else if(!this._vf.colorPerVertex){var faceCnt=0;var numColComponents=3;if(x3dom.isa(this._cf.color.node,x3dom.nodeTypes.ColorRGBA)){numColComponents=4;} +this._mesh._colors[0]=[];var indexes=this._vf.index;for(var i=0;i0)&&(i%3===0)){faceCnt++;} +this._mesh._colors[0].push(pnts[faceCnt].r);this._mesh._colors[0].push(pnts[faceCnt].g);this._mesh._colors[0].push(pnts[faceCnt].b);if(numColComponents===4){this._mesh._colors[0].push(pnts[faceCnt].a);}}} +Array.forEach(this._parentNodes,function(node){node._dirty.colors=true;});} +else if(fieldName=="normal") +{pnts=this._cf.normal.node._vf.vector;if(this._vf.normalPerVertex){this._mesh._normals[0]=pnts.toGL();}else if(!this._vf.normalPerVertex){var indexes=this._vf.index;this._mesh._normals[0]=[];var faceCnt=0;for(var i=0;i0)&&(i%3===0)){faceCnt++;} +this._mesh._normals[0].push(pnts[faceCnt].x);this._mesh._normals[0].push(pnts[faceCnt].y);this._mesh._normals[0].push(pnts[faceCnt].z);}} +Array.forEach(this._parentNodes,function(node){node._dirty.normals=true;});} +else if(fieldName=="texCoord") +{var texCoordNode=this._cf.texCoord.node;if(x3dom.isa(texCoordNode,x3dom.nodeTypes.MultiTextureCoordinate)){if(texCoordNode._cf.texCoord.nodes.length) +texCoordNode=texCoordNode._cf.texCoord.nodes[0];} +pnts=texCoordNode._vf.point;this._mesh._texCoords[0]=pnts.toGL();Array.forEach(this._parentNodes,function(node){node._dirty.texcoords=true;});}}}));x3dom.registerNodeType("IndexedTriangleStripSet","Rendering",defineClass(x3dom.nodeTypes.X3DComposedGeometryNode,function(ctx){x3dom.nodeTypes.IndexedTriangleStripSet.superClass.call(this,ctx);this.addField_MFInt32(ctx,'index',[]);this._hasIndexOffset=false;this._indexOffset=null;},{hasIndexOffset:function(){return this._hasIndexOffset;},nodeChanged:function() +{this.handleAttribs();var hasNormal=false,hasTexCoord=false,hasColor=false;var colPerVert=this._vf.colorPerVertex;var normPerVert=this._vf.normalPerVertex;var indexes=this._vf.index;var positions,normals,texCoords,colors;var coordNode=this._cf.coord.node;x3dom.debug.assert(coordNode);positions=coordNode._vf.point;var normalNode=this._cf.normal.node;if(normalNode){hasNormal=true;normals=normalNode._vf.vector;} +else{hasNormal=false;} +var texMode="",numTexComponents=2;var texCoordNode=this._cf.texCoord.node;if(x3dom.isa(texCoordNode,x3dom.nodeTypes.MultiTextureCoordinate)){if(texCoordNode._cf.texCoord.nodes.length) +texCoordNode=texCoordNode._cf.texCoord.nodes[0];} +if(texCoordNode){if(texCoordNode._vf.point){hasTexCoord=true;texCoords=texCoordNode._vf.point;if(x3dom.isa(texCoordNode,x3dom.nodeTypes.TextureCoordinate3D)){numTexComponents=3;}} +else if(texCoordNode._vf.mode){texMode=texCoordNode._vf.mode;}} +else{hasTexCoord=false;} +this._mesh._numTexComponents=numTexComponents;var numColComponents=3;var colorNode=this._cf.color.node;if(colorNode){hasColor=true;colors=colorNode._vf.color;if(x3dom.isa(colorNode,x3dom.nodeTypes.ColorRGBA)){numColComponents=4;}} +else{hasColor=false;} +this._mesh._numColComponents=numColComponents;this._mesh._indices[0]=[];this._mesh._positions[0]=[];this._mesh._normals[0]=[];this._mesh._texCoords[0]=[];this._mesh._colors[0]=[];this.invalidateVolume();this._mesh._numFaces=0;this._mesh._numCoords=0;var faceCnt=0,cnt=0;if(hasNormal&&positions.length<=x3dom.Utils.maxIndexableCoords) +{this._hasIndexOffset=true;this._indexOffset=[];this._mesh._primType='TRIANGLESTRIP';var indexOffset=[0];for(i=0;ix3dom.Utils.maxIndexableCoords)) +{if(fieldName=="coord"){this._mesh._positions[0]=[];this._mesh._indices[0]=[];this._mesh._normals[0]=[];this._mesh._texCoords[0]=[];var hasNormal=false,hasTexCoord=false,hasColor=false;var colPerVert=this._vf.colorPerVertex;var normPerVert=this._vf.normalPerVertex;var indexes=this._vf.index;var positions,normals,texCoords,colors;var coordNode=this._cf.coord.node;x3dom.debug.assert(coordNode);positions=coordNode._vf.point;var normalNode=this._cf.normal.node;if(normalNode){hasNormal=true;normals=normalNode._vf.vector;} +else{hasNormal=false;} +var texMode="",numTexComponents=2;var texCoordNode=this._cf.texCoord.node;if(x3dom.isa(texCoordNode,x3dom.nodeTypes.MultiTextureCoordinate)){if(texCoordNode._cf.texCoord.nodes.length) +texCoordNode=texCoordNode._cf.texCoord.nodes[0];} +if(texCoordNode){if(texCoordNode._vf.point){hasTexCoord=true;texCoords=texCoordNode._vf.point;if(x3dom.isa(texCoordNode,x3dom.nodeTypes.TextureCoordinate3D)){numTexComponents=3;}} +else if(texCoordNode._vf.mode){texMode=texCoordNode._vf.mode;}} +else{hasTexCoord=false;} +this._mesh._numTexComponents=numTexComponents;var numColComponents=3;var colorNode=this._cf.color.node;if(colorNode){hasColor=true;colors=colorNode._vf.color;if(x3dom.isa(colorNode,x3dom.nodeTypes.ColorRGBA)){numColComponents=4;}} +else{hasColor=false;} +this._mesh._numColComponents=numColComponents;this._mesh._indices[0]=[];this._mesh._positions[0]=[];this._mesh._normals[0]=[];this._mesh._texCoords[0]=[];this._mesh._colors[0]=[];var faceCnt=0,cnt=0;var p1,p2,p3,n1,n2,n3,t1,t2,t3,c1,c2,c3;var swapOrder=false;if(hasNormal||hasTexCoord||hasColor){for(var i=1;i0){positions.pop();} +this._mesh._indices[0]=new Array(positions.length);this._mesh._positions[0]=[];this._mesh._normals[0]=[];this._mesh._texCoords[0]=[];this._mesh._colors[0]=[];var posMax=positions.length/3;var faceCnt,i=0;for(faceCnt=0;faceCnt0||this._cf.material.node._vf.backTransparency&&this._cf.material.node._vf.backTransparency>0)){this._vf.sortType='transparent';} +else if(this._cf.texture.node&&this._cf.texture.node._vf.url.length){if(this._cf.texture.node._vf.url[0].toLowerCase().indexOf('.'+'png')>=0){this._vf.sortType='transparent';} +else{this._vf.sortType='opaque';}} +else{this._vf.sortType='opaque';}}},texTransformMatrix:function(){if(this._cf.textureTransform.node===null){return x3dom.fields.SFMatrix4f.identity();} +else{return this._cf.textureTransform.node.texTransformMatrix();}},parentAdded:function(parent){if(this!=x3dom.nodeTypes.Appearance._defaultNode){parent.setAppDirty();}}}));x3dom.nodeTypes.Appearance.defaultNode=function(){if(!x3dom.nodeTypes.Appearance._defaultNode){x3dom.nodeTypes.Appearance._defaultNode=new x3dom.nodeTypes.Appearance();x3dom.nodeTypes.Appearance._defaultNode.nodeChanged();} +return x3dom.nodeTypes.Appearance._defaultNode;};x3dom.registerNodeType("X3DAppearanceChildNode","Shape",defineClass(x3dom.nodeTypes.X3DNode,function(ctx){x3dom.nodeTypes.X3DAppearanceChildNode.superClass.call(this,ctx);}));x3dom.registerNodeType("BlendMode","Shape",defineClass(x3dom.nodeTypes.X3DAppearanceChildNode,function(ctx){x3dom.nodeTypes.BlendMode.superClass.call(this,ctx);this.addField_SFString(ctx,'srcFactor',"src_alpha");this.addField_SFString(ctx,'destFactor',"one_minus_src_alpha");this.addField_SFColor(ctx,'color',1,1,1);this.addField_SFFloat(ctx,'colorTransparency',0);this.addField_SFString(ctx,'alphaFunc',"none");this.addField_SFFloat(ctx,'alphaFuncValue',0);this.addField_SFString(ctx,'equation',"none");}));x3dom.registerNodeType("DepthMode","Shape",defineClass(x3dom.nodeTypes.X3DAppearanceChildNode,function(ctx){x3dom.nodeTypes.DepthMode.superClass.call(this,ctx);this.addField_SFBool(ctx,'enableDepthTest',true);this.addField_SFString(ctx,'depthFunc',"none");this.addField_SFBool(ctx,'readOnly',false);this.addField_SFFloat(ctx,'zNearRange',-1);this.addField_SFFloat(ctx,'zFarRange',-1);}));x3dom.registerNodeType("ColorMaskMode","Shape",defineClass(x3dom.nodeTypes.X3DAppearanceChildNode,function(ctx){x3dom.nodeTypes.ColorMaskMode.superClass.call(this,ctx);this.addField_SFBool(ctx,'maskR',true);this.addField_SFBool(ctx,'maskG',true);this.addField_SFBool(ctx,'maskB',true);this.addField_SFBool(ctx,'maskA',true);}));x3dom.registerNodeType("LineProperties","Shape",defineClass(x3dom.nodeTypes.X3DAppearanceChildNode,function(ctx){x3dom.nodeTypes.LineProperties.superClass.call(this,ctx);this.addField_SFBool(ctx,'applied',true);this.addField_SFInt32(ctx,'linetype',1);this.addField_SFFloat(ctx,'linewidthScaleFactor',0);}));x3dom.registerNodeType("X3DMaterialNode","Shape",defineClass(x3dom.nodeTypes.X3DAppearanceChildNode,function(ctx){x3dom.nodeTypes.X3DMaterialNode.superClass.call(this,ctx);}));x3dom.registerNodeType("Material","Shape",defineClass(x3dom.nodeTypes.X3DMaterialNode,function(ctx){x3dom.nodeTypes.Material.superClass.call(this,ctx);this.addField_SFFloat(ctx,'ambientIntensity',0.2);this.addField_SFColor(ctx,'diffuseColor',0.8,0.8,0.8);this.addField_SFColor(ctx,'emissiveColor',0,0,0);this.addField_SFFloat(ctx,'shininess',0.2);this.addField_SFColor(ctx,'specularColor',0,0,0);this.addField_SFFloat(ctx,'transparency',0);},{fieldChanged:function(fieldName){if(fieldName=="ambientIntensity"||fieldName=="diffuseColor"||fieldName=="emissiveColor"||fieldName=="shininess"||fieldName=="specularColor"||fieldName=="transparency") +{Array.forEach(this._parentNodes,function(app){Array.forEach(app._parentNodes,function(shape){shape._dirty.material=true;});app.checkSortType();});}}}));x3dom.nodeTypes.Material.defaultNode=function(){if(!x3dom.nodeTypes.Material._defaultNode){x3dom.nodeTypes.Material._defaultNode=new x3dom.nodeTypes.Material();x3dom.nodeTypes.Material._defaultNode.nodeChanged();} +return x3dom.nodeTypes.Material._defaultNode;};x3dom.registerNodeType("TwoSidedMaterial","Shape",defineClass(x3dom.nodeTypes.Material,function(ctx){x3dom.nodeTypes.TwoSidedMaterial.superClass.call(this,ctx);this.addField_SFFloat(ctx,'backAmbientIntensity',0.2);this.addField_SFColor(ctx,'backDiffuseColor',0.8,0.8,0.8);this.addField_SFColor(ctx,'backEmissiveColor',0,0,0);this.addField_SFFloat(ctx,'backShininess',0.2);this.addField_SFColor(ctx,'backSpecularColor',0,0,0);this.addField_SFFloat(ctx,'backTransparency',0);this.addField_SFBool(ctx,'separateBackColor',false);},{fieldChanged:function(fieldName){if(fieldName=="ambientIntensity"||fieldName=="diffuseColor"||fieldName=="emissiveColor"||fieldName=="shininess"||fieldName=="specularColor"||fieldName=="transparency"||fieldName=="backAmbientIntensity"||fieldName=="backDiffuseColor"||fieldName=="backEmissiveColor"||fieldName=="backShininess"||fieldName=="backSpecularColor"||fieldName=="backTransparency"||fieldName=="separateBackColor") +{Array.forEach(this._parentNodes,function(app){Array.forEach(app._parentNodes,function(shape){shape._dirty.material=true;});app.checkSortType();});}}}));x3dom.registerNodeType("X3DShapeNode","Shape",defineClass(x3dom.nodeTypes.X3DBoundedObject,function(ctx){x3dom.nodeTypes.X3DShapeNode.superClass.call(this,ctx);this.addField_SFBool(ctx,'isPickable',true);this.addField_SFInt32(ctx,'idOffset',0);this.addField_SFNode('appearance',x3dom.nodeTypes.X3DAppearanceNode);this.addField_SFNode('geometry',x3dom.nodeTypes.X3DGeometryNode);this._objectID=0;this._shaderProperties=null;this._clipPlanes=[];this._cleanupGLObjects=null;this._dirty={positions:true,normals:true,texcoords:true,colors:true,specialAttribs:true,indexes:true,texture:true,material:true,text:true,shader:true};this._coordStrideOffset=[0,0];this._normalStrideOffset=[0,0];this._texCoordStrideOffset=[0,0];this._colorStrideOffset=[0,0];this._tessellationProperties=[];},{collectDrawableObjects:function(transform,drawableCollection,singlePath,invalidateCache,planeMask,clipPlanes) +{var graphState=this.graphState();if(singlePath&&(this._parentNodes.length>1)) +singlePath=false;if(singlePath&&(invalidateCache=invalidateCache||this.cacheInvalid())) +this.invalidateCache();if(!this._cf.geometry.node||drawableCollection.cull(transform,graphState,singlePath,planeMask)<=0){return false;} +if(singlePath&&!this._graph.globalMatrix) +this._graph.globalMatrix=transform;if(this._clipPlanes.length!=clipPlanes.length) +{this._dirty.shader=true;} +this._clipPlanes=clipPlanes;drawableCollection.addShape(this,transform,graphState);return true;},getVolume:function() +{var vol=this._graph.volume;if(!this.volumeValid()&&this._vf.render) +{var geo=this._cf.geometry.node;var childVol=geo?geo.getVolume():null;if(childVol&&childVol.isValid()) +vol.extendBounds(childVol.min,childVol.max);} +return vol;},getCenter:function(){var geo=this._cf.geometry.node;return(geo?geo.getCenter():new x3dom.fields.SFVec3f(0,0,0));},getDiameter:function(){var geo=this._cf.geometry.node;return(geo?geo.getDiameter():0);},doIntersect:function(line){return this._cf.geometry.node.doIntersect(line);},forceUpdateCoverage:function() +{var geo=this._cf.geometry.node;return(geo?geo.forceUpdateCoverage():false);},tessellationProperties:function() +{var geo=this._cf.geometry.node;if(geo&&geo._indexOffset) +return geo._indexOffset;else +return this._tessellationProperties;},isLit:function(){return this._cf.geometry.node._vf.lit;},isSolid:function(){var twoSidedMat=(this._cf.appearance.node&&this._cf.appearance.node._cf.material.node&&x3dom.isa(this._cf.appearance.node._cf.material.node,x3dom.nodeTypes.TwoSidedMaterial));return this._cf.geometry.node._vf.solid&&!twoSidedMat;},isCCW:function(){return this._cf.geometry.node._vf.ccw;},parentRemoved:function(parent){for(var i=0,n=this._childNodes.length;i0) +this.invalidateVolume();if(this._cleanupGLObjects){this._cleanupGLObjects();}},unsetDirty:function(){this._dirty.positions=false;this._dirty.normals=false;this._dirty.texcoords=false;this._dirty.colors=false;this._dirty.specialAttribs=false;this._dirty.indexes=false;this._dirty.texture=false;this._dirty.material=false;this._dirty.text=false;this._dirty.shader=false;},unsetGeoDirty:function(){this._dirty.positions=false;this._dirty.normals=false;this._dirty.texcoords=false;this._dirty.colors=false;this._dirty.specialAttribs=false;this._dirty.indexes=false;},setAllDirty:function(){this._dirty.positions=true;this._dirty.normals=true;this._dirty.texcoords=true;this._dirty.colors=true;this._dirty.specialAttribs=true;this._dirty.indexes=true;this._dirty.texture=true;this._dirty.material=true;this._dirty.text=true;this._dirty.shader=true;this.invalidateVolume();},setAppDirty:function(){this._dirty.texture=true;this._dirty.material=true;this._dirty.shader=true;},setGeoDirty:function(){this._dirty.positions=true;this._dirty.normals=true;this._dirty.texcoords=true;this._dirty.colors=true;this._dirty.specialAttribs=true;this._dirty.indexes=true;this.invalidateVolume();},getShaderProperties:function(viewarea) +{if(this._shaderProperties==null||this._dirty.shader==true||(this._webgl!==undefined&&this._webgl.dirtyLighting!=x3dom.Utils.checkDirtyLighting(viewarea))||x3dom.Utils.checkDirtyEnvironment(viewarea,this._shaderProperties)==true) +{this._shaderProperties=x3dom.Utils.generateProperties(viewarea,this);this._dirty.shader=false;if(this._webgl!==undefined) +{this._webgl.dirtyLighting=x3dom.Utils.checkDirtyLighting(viewarea);}} +return this._shaderProperties;},getTextures:function(){var textures=[];var appearance=this._cf.appearance.node;if(appearance){var tex=appearance._cf.texture.node;if(tex){if(x3dom.isa(tex,x3dom.nodeTypes.MultiTexture)){textures=textures.concat(tex.getTextures());} +else{textures.push(tex);}} +var shader=appearance._cf.shaders.nodes[0];if(shader){if(x3dom.isa(shader,x3dom.nodeTypes.CommonSurfaceShader)){textures=textures.concat(shader.getTextures());}}} +var geometry=this._cf.geometry.node;if(geometry){if(x3dom.isa(geometry,x3dom.nodeTypes.ImageGeometry)){textures=textures.concat(geometry.getTextures());} +else if(x3dom.isa(geometry,x3dom.nodeTypes.Text)){textures=textures.concat(geometry);}} +return textures;}}));x3dom.registerNodeType("Shape","Shape",defineClass(x3dom.nodeTypes.X3DShapeNode,function(ctx){x3dom.nodeTypes.Shape.superClass.call(this,ctx);},{nodeChanged:function(){if(!this._cf.appearance.node){} +if(!this._cf.geometry.node){if(this._DEF) +x3dom.debug.logError("No geometry given in Shape/"+this._DEF);} +else if(!this._objectID){this._objectID=++x3dom.nodeTypes.Shape.objectID;x3dom.nodeTypes.Shape.idMap.nodeID[this._objectID]=this;} +this.invalidateVolume();}}));x3dom.nodeTypes.Shape.shaderPartID=0;x3dom.nodeTypes.Shape.objectID=0;x3dom.nodeTypes.Shape.idMap={nodeID:{},remove:function(obj){for(var prop in this.nodeID){if(this.nodeID.hasOwnProperty(prop)){var val=this.nodeID[prop];if(val._objectID&&obj._objectID&&val._objectID===obj._objectID) +{delete this.nodeID[prop];x3dom.debug.logInfo("Unreg "+val._objectID);}}}}};x3dom.registerNodeType("X3DLightNode","Lighting",defineClass(x3dom.nodeTypes.X3DChildNode,function(ctx){x3dom.nodeTypes.X3DLightNode.superClass.call(this,ctx);if(ctx) +ctx.doc._nodeBag.lights.push(this);else +x3dom.debug.logWarning("X3DLightNode: No runtime context found!");this._lightID=0;this._dirty=true;this.addField_SFFloat(ctx,'ambientIntensity',0);this.addField_SFColor(ctx,'color',1,1,1);this.addField_SFFloat(ctx,'intensity',1);this.addField_SFBool(ctx,'global',false);this.addField_SFBool(ctx,'on',true);this.addField_SFFloat(ctx,'shadowIntensity',0);this.addField_SFInt32(ctx,'shadowMapSize',1024);this.addField_SFInt32(ctx,'shadowFilterSize',0);this.addField_SFFloat(ctx,'shadowOffset',0);this.addField_SFFloat(ctx,'zNear',-1);this.addField_SFFloat(ctx,'zFar',-1);},{getViewMatrix:function(vec){return x3dom.fields.SFMatrix4f.identity;},nodeChanged:function(){if(!this._lightID){this._lightID=++x3dom.nodeTypes.X3DLightNode.lightID;}},fieldChanged:function(fieldName) +{if(this._vf.hasOwnProperty(fieldName)){this._dirty=true;}},parentRemoved:function(parent) +{if(this._parentNodes.length===1&&this._parentNodes[0]==parent){var doc=this.findX3DDoc();for(var i=0,n=doc._nodeBag.lights.length;i=this._vf.duration){return 1;} +return this.stepResponseCore(t/this._vf.duration);},stepResponseCore:function(T) +{return 0.5-0.5*Math.cos(T*Math.PI);}}));x3dom.registerNodeType("X3DChaserNode","Followers",defineClass(x3dom.nodeTypes.X3DFollowerNode,function(ctx){x3dom.nodeTypes.X3DChaserNode.superClass.call(this,ctx);this.addField_SFTime(ctx,'duration',1);this._initDone=false;this._stepTime=0;this._currTime=0;this._bufferEndTime=0;this._numSupports=60;}));x3dom.registerNodeType("X3DDamperNode","Followers",defineClass(x3dom.nodeTypes.X3DFollowerNode,function(ctx){x3dom.nodeTypes.X3DDamperNode.superClass.call(this,ctx);this.addField_SFTime(ctx,'tau',0.3);this.addField_SFFloat(ctx,'tolerance',-1);this.addField_SFInt32(ctx,'order',3);this._eps=this._vf.tolerance<0?this._eps:this._vf.tolerance;this._lastTick=0;}));x3dom.registerNodeType("ColorChaser","Followers",defineClass(x3dom.nodeTypes.X3DChaserNode,function(ctx){x3dom.nodeTypes.ColorChaser.superClass.call(this,ctx);this.addField_SFColor(ctx,'initialDestination',0.8,0.8,0.8);this.addField_SFColor(ctx,'initialValue',0.8,0.8,0.8);this.addField_SFColor(ctx,'value',0,0,0);this.addField_SFColor(ctx,'destination',0,0,0);this._buffer=new x3dom.fields.MFColor();this._previousValue=new x3dom.fields.SFColor(0,0,0);this._value=new x3dom.fields.SFColor(0,0,0);this.initialize();},{fieldChanged:function(fieldName) +{if(fieldName.indexOf("destination")>=0) +{this.initialize();this.updateBuffer(this._currTime);if(!this._vf.isActive){this.postMessage('isActive',true);}} +else if(fieldName.indexOf("value")>=0) +{this.initialize();this._previousValue.setValues(this._vf.value);for(var C=1;C=0;C--) +{DeltaIn=this._buffer[C].subtract(this._buffer[C+1]);DeltaOut=DeltaIn.multiply(this.stepResponse((C+Frac)*this._stepTime));Output=Output.add(DeltaOut);} +if(!Output.equals(this._value,this._eps)){this._value.setValues(Output);this.postMessage('value',this._value);} +else{this.postMessage('isActive',false);} +return this._vf.isActive;},updateBuffer:function(now) +{var Frac=(now-this._bufferEndTime)/this._stepTime;var C;var NumToShift;var Alpha;if(Frac>=1) +{NumToShift=Math.floor(Frac);Frac-=NumToShift;if(NumToShift=NumToShift;C--){this._buffer[C]=this._buffer[C-NumToShift];} +for(C=0;C=0) +{if(!this._value0.equals(this._vf.destination,this._eps)){this._value0=this._vf.destination;if(!this._vf.isActive){this.postMessage('isActive',true);}}} +else if(fieldName.indexOf("value")>=0) +{this._value1.setValues(this._vf.value);this._value2.setValues(this._vf.value);this._value3.setValues(this._vf.value);this._value4.setValues(this._vf.value);this._value5.setValues(this._vf.value);this._lastTick=0;this.postMessage('value',this._value5);if(!this._vf.isActive){this._lastTick=0;this.postMessage('isActive',true);}}},initialize:function() +{this._value0.setValues(this._vf.initialDestination);this._value1.setValues(this._vf.initialValue);this._value2.setValues(this._vf.initialValue);this._value3.setValues(this._vf.initialValue);this._value4.setValues(this._vf.initialValue);this._value5.setValues(this._vf.initialValue);this._lastTick=0;var active=!this._value0.equals(this._value1,this._eps);if(this._vf.isActive!==active){this.postMessage('isActive',active);}},distance:function(a,b) +{var diff=a.subtract(b);return Math.sqrt(diff.r*diff.r+diff.g*diff.g+diff.b*diff.b);},tick:function(now) +{if(!this._lastTick) +{this._lastTick=now;return false;} +var delta=now-this._lastTick;var alpha=Math.exp(-delta/this._vf.tau);this._value1=this._vf.order>0&&this._vf.tau?this._value0.add(this._value1.subtract(this._value0).multiply(alpha)):new x3dom.fields.SFColor(this._value0.r,this._value0.g,this._value0.b);this._value2=this._vf.order>1&&this._vf.tau?this._value1.add(this._value2.subtract(this._value1).multiply(alpha)):new x3dom.fields.SFColor(this._value1.r,this._value1.g,this._value1.b);this._value3=this._vf.order>2&&this._vf.tau?this._value2.add(this._value3.subtract(this._value2).multiply(alpha)):new x3dom.fields.SFColor(this._value2.r,this._value2.g,this._value2.b);this._value4=this._vf.order>3&&this._vf.tau?this._value3.add(this._value4.subtract(this._value3).multiply(alpha)):new x3dom.fields.SFColor(this._value3.r,this._value3.g,this._value3.b);this._value5=this._vf.order>4&&this._vf.tau?this._value4.add(this._value5.subtract(this._value4).multiply(alpha)):new x3dom.fields.SFColor(this._value4.r,this._value4.g,this._value4.b);var dist=this.distance(this._value1,this._value0);if(this._vf.order>1) +{var dist2=this.distance(this._value2,this._value1);if(dist2>dist){dist=dist2;}} +if(this._vf.order>2) +{var dist3=this.distance(this._value3,this._value2);if(dist3>dist){dist=dist3;}} +if(this._vf.order>3) +{var dist4=this.distance(this._value4,this._value3);if(dist4>dist){dist=dist4;}} +if(this._vf.order>4) +{var dist5=this.distance(this._value5,this._value4);if(dist5>dist){dist=dist5;}} +if(dist<=this._eps) +{this._value1.setValues(this._value0);this._value2.setValues(this._value0);this._value3.setValues(this._value0);this._value4.setValues(this._value0);this._value5.setValues(this._value0);this.postMessage('value',this._value0);this.postMessage('isActive',false);this._lastTick=0;return false;} +this.postMessage('value',this._value5);this._lastTick=now;return true;}}));x3dom.registerNodeType("OrientationChaser","Followers",defineClass(x3dom.nodeTypes.X3DChaserNode,function(ctx){x3dom.nodeTypes.OrientationChaser.superClass.call(this,ctx);this.addField_SFRotation(ctx,'initialDestination',0,1,0,0);this.addField_SFRotation(ctx,'initialValue',0,1,0,0);this.addField_SFRotation(ctx,'value',0,1,0,0);this.addField_SFRotation(ctx,'destination',0,1,0,0);this._numSupports=30;this._buffer=new x3dom.fields.MFRotation();this._previousValue=new x3dom.fields.Quaternion(0,1,0,0);this._value=new x3dom.fields.Quaternion(0,1,0,0);this.initialize();},{fieldChanged:function(fieldName) +{if(fieldName.indexOf("destination")>=0) +{this.initialize();this.updateBuffer(this._currTime);if(!this._vf.isActive){this.postMessage('isActive',true);}} +else if(fieldName.indexOf("value")>=0) +{this.initialize();this._previousValue.setValues(this._vf.value);for(var C=1;C=0;C--) +{DeltaIn=this._buffer[C+1].inverse().multiply(this._buffer[C]);Output=Output.slerp(Output.multiply(DeltaIn),this.stepResponse((C+Frac)*this._stepTime));} +if(!Output.equals(this._value,this._eps)){Output=Output.normalize(Output);this._value.setValues(Output);this.postMessage('value',this._value);} +else{this.postMessage('isActive',false);} +return this._vf.isActive;},updateBuffer:function(now) +{var Frac=(now-this._bufferEndTime)/this._stepTime;var C;var NumToShift;var Alpha;if(Frac>=1) +{NumToShift=Math.floor(Frac);Frac-=NumToShift;if(NumToShift=NumToShift;C--){this._buffer[C]=x3dom.fields.Quaternion.copy(this._buffer[C-NumToShift]);} +for(C=0;C=0) +{if(!this._value0.equals(this._vf.destination,this._eps)){this._value0=this._vf.destination;if(!this._vf.isActive){this.postMessage('isActive',true);}}} +else if(fieldName.indexOf("value")>=0) +{this._value1.setValues(this._vf.value);this._value2.setValues(this._vf.value);this._value3.setValues(this._vf.value);this._value4.setValues(this._vf.value);this._value5.setValues(this._vf.value);this._lastTick=0;this.postMessage('value',this._value5);if(!this._vf.isActive){this._lastTick=0;this.postMessage('isActive',true);}}},initialize:function() +{this._value0.setValues(this._vf.initialDestination);this._value1.setValues(this._vf.initialValue);this._value2.setValues(this._vf.initialValue);this._value3.setValues(this._vf.initialValue);this._value4.setValues(this._vf.initialValue);this._value5.setValues(this._vf.initialValue);this._lastTick=0;var active=!this._value0.equals(this._value1,this._eps);if(this._vf.isActive!==active){this.postMessage('isActive',active);}},tick:function(now) +{if(!this._lastTick) +{this._lastTick=now;return false;} +var delta=now-this._lastTick;var alpha=Math.exp(-delta/this._vf.tau);this._value1=this._vf.order>0&&this._vf.tau?this._value0.slerp(this._value1,alpha):new x3dom.fields.Quaternion(this._value0.x,this._value0.y,this._value0.z,this._value0.w);this._value2=this._vf.order>1&&this._vf.tau?this._value1.slerp(this._value2,alpha):new x3dom.fields.Quaternion(this._value1.x,this._value1.y,this._value1.z,this._value1.w);this._value3=this._vf.order>2&&this._vf.tau?this._value2.slerp(this._value3,alpha):new x3dom.fields.Quaternion(this._value2.x,this._value2.y,this._value2.z,this._value2.w);this._value4=this._vf.order>3&&this._vf.tau?this._value3.slerp(this._value4,alpha):new x3dom.fields.Quaternion(this._value3.x,this._value3.y,this._value3.z,this._value3.w);this._value5=this._vf.order>4&&this._vf.tau?this._value4.slerp(this._value5,alpha):new x3dom.fields.Quaternion(this._value4.x,this._value4.y,this._value4.z,this._value4.w);var dist=Math.abs(this._value1.inverse().multiply(this._value0).angle());if(this._vf.order>1) +{var dist2=Math.abs(this._value2.inverse().multiply(this._value1).angle());if(dist2>dist){dist=dist2;}} +if(this._vf.order>2) +{var dist3=Math.abs(this._value3.inverse().multiply(this._value2).angle());if(dist3>dist){dist=dist3;}} +if(this._vf.order>3) +{var dist4=Math.abs(this._value4.inverse().multiply(this._value3).angle());if(dist4>dist){dist=dist4;}} +if(this._vf.order>4) +{var dist5=Math.abs(this._value5.inverse().multiply(this._value4).angle());if(dist5>dist){dist=dist5;}} +if(dist<=this._eps) +{this._value1.setValues(this._value0);this._value2.setValues(this._value0);this._value3.setValues(this._value0);this._value4.setValues(this._value0);this._value5.setValues(this._value0);this.postMessage('value',this._value0);this.postMessage('isActive',false);this._lastTick=0;return false;} +this.postMessage('value',this._value5);this._lastTick=now;return true;}}));x3dom.registerNodeType("PositionChaser","Followers",defineClass(x3dom.nodeTypes.X3DChaserNode,function(ctx){x3dom.nodeTypes.PositionChaser.superClass.call(this,ctx);this.addField_SFVec3f(ctx,'initialDestination',0,0,0);this.addField_SFVec3f(ctx,'initialValue',0,0,0);this.addField_SFVec3f(ctx,'value',0,0,0);this.addField_SFVec3f(ctx,'destination',0,0,0);this._buffer=new x3dom.fields.MFVec3f();this._previousValue=new x3dom.fields.SFVec3f(0,0,0);this._value=new x3dom.fields.SFVec3f(0,0,0);this.initialize();},{fieldChanged:function(fieldName) +{if(fieldName.indexOf("destination")>=0) +{this.initialize();this.updateBuffer(this._currTime);if(!this._vf.isActive){this.postMessage('isActive',true);}} +else if(fieldName.indexOf("value")>=0) +{this.initialize();this._previousValue.setValues(this._vf.value);for(var C=1;C=0;C--) +{DeltaIn=this._buffer[C].subtract(this._buffer[C+1]);DeltaOut=DeltaIn.multiply(this.stepResponse((C+Frac)*this._stepTime));Output=Output.add(DeltaOut);} +if(!Output.equals(this._value,this._eps)){this._value.setValues(Output);this.postMessage('value',this._value);} +else{this.postMessage('isActive',false);} +return this._vf.isActive;},updateBuffer:function(now) +{var Frac=(now-this._bufferEndTime)/this._stepTime;var C;var NumToShift;var Alpha;if(Frac>=1) +{NumToShift=Math.floor(Frac);Frac-=NumToShift;if(NumToShift=NumToShift;C--){this._buffer[C]=x3dom.fields.SFVec3f.copy(this._buffer[C-NumToShift]);} +for(C=0;C=0) +{this.initialize();this.updateBuffer(this._currTime);if(!this._vf.isActive){this.postMessage('isActive',true);}} +else if(fieldName.indexOf("value")>=0) +{this.initialize();this._previousValue.setValues(this._vf.value);for(var C=1;C=0;C--) +{DeltaIn=this._buffer[C].subtract(this._buffer[C+1]);DeltaOut=DeltaIn.multiply(this.stepResponse((C+Frac)*this._stepTime));Output=Output.add(DeltaOut);} +if(!Output.equals(this._value,this._eps)){this._value.setValues(Output);this.postMessage('value',this._value);} +else{this.postMessage('isActive',false);} +return this._vf.isActive;},updateBuffer:function(now) +{var Frac=(now-this._bufferEndTime)/this._stepTime;var C;var NumToShift;var Alpha;if(Frac>=1) +{NumToShift=Math.floor(Frac);Frac-=NumToShift;if(NumToShift=NumToShift;C--){this._buffer[C]=x3dom.fields.SFVec2f.copy(this._buffer[C-NumToShift]);} +for(C=0;C=0) +{if(!this._value0.equals(this._vf.destination,this._eps)){this._value0=this._vf.destination;if(!this._vf.isActive){this.postMessage('isActive',true);}}} +else if(fieldName.indexOf("value")>=0) +{this._value1.setValues(this._vf.value);this._value2.setValues(this._vf.value);this._value3.setValues(this._vf.value);this._value4.setValues(this._vf.value);this._value5.setValues(this._vf.value);this._lastTick=0;this.postMessage('value',this._value5);if(!this._vf.isActive){this._lastTick=0;this.postMessage('isActive',true);}}},initialize:function() +{this._value0.setValues(this._vf.initialDestination);this._value1.setValues(this._vf.initialValue);this._value2.setValues(this._vf.initialValue);this._value3.setValues(this._vf.initialValue);this._value4.setValues(this._vf.initialValue);this._value5.setValues(this._vf.initialValue);this._lastTick=0;var active=!this._value0.equals(this._value1,this._eps);if(this._vf.isActive!==active){this.postMessage('isActive',active);}},tick:function(now) +{if(!this._lastTick) +{this._lastTick=now;return false;} +var delta=now-this._lastTick;var alpha=Math.exp(-delta/this._vf.tau);this._value1=this._vf.order>0&&this._vf.tau?this._value0.add(this._value1.subtract(this._value0).multiply(alpha)):new x3dom.fields.SFVec3f(this._value0.x,this._value0.y,this._value0.z);this._value2=this._vf.order>1&&this._vf.tau?this._value1.add(this._value2.subtract(this._value1).multiply(alpha)):new x3dom.fields.SFVec3f(this._value1.x,this._value1.y,this._value1.z);this._value3=this._vf.order>2&&this._vf.tau?this._value2.add(this._value3.subtract(this._value2).multiply(alpha)):new x3dom.fields.SFVec3f(this._value2.x,this._value2.y,this._value2.z);this._value4=this._vf.order>3&&this._vf.tau?this._value3.add(this._value4.subtract(this._value3).multiply(alpha)):new x3dom.fields.SFVec3f(this._value3.x,this._value3.y,this._value3.z);this._value5=this._vf.order>4&&this._vf.tau?this._value4.add(this._value5.subtract(this._value4).multiply(alpha)):new x3dom.fields.SFVec3f(this._value4.x,this._value4.y,this._value4.z);var dist=this._value1.subtract(this._value0).length();if(this._vf.order>1) +{var dist2=this._value2.subtract(this._value1).length();if(dist2>dist){dist=dist2;}} +if(this._vf.order>2) +{var dist3=this._value3.subtract(this._value2).length();if(dist3>dist){dist=dist3;}} +if(this._vf.order>3) +{var dist4=this._value4.subtract(this._value3).length();if(dist4>dist){dist=dist4;}} +if(this._vf.order>4) +{var dist5=this._value5.subtract(this._value4).length();if(dist5>dist){dist=dist5;}} +if(dist<=this._eps) +{this._value1.setValues(this._value0);this._value2.setValues(this._value0);this._value3.setValues(this._value0);this._value4.setValues(this._value0);this._value5.setValues(this._value0);this.postMessage('value',this._value0);this.postMessage('isActive',false);this._lastTick=0;return false;} +this.postMessage('value',this._value5);this._lastTick=now;return true;}}));x3dom.registerNodeType("PositionDamper2D","Followers",defineClass(x3dom.nodeTypes.X3DDamperNode,function(ctx){x3dom.nodeTypes.PositionDamper2D.superClass.call(this,ctx);this.addField_SFVec2f(ctx,'initialDestination',0,0);this.addField_SFVec2f(ctx,'initialValue',0,0);this.addField_SFVec2f(ctx,'value',0,0);this.addField_SFVec2f(ctx,'destination',0,0);this._value0=new x3dom.fields.SFVec2f(0,0);this._value1=new x3dom.fields.SFVec2f(0,0);this._value2=new x3dom.fields.SFVec2f(0,0);this._value3=new x3dom.fields.SFVec2f(0,0);this._value4=new x3dom.fields.SFVec2f(0,0);this._value5=new x3dom.fields.SFVec2f(0,0);this.initialize();},{fieldChanged:function(fieldName) +{if(fieldName==="tolerance") +{this._eps=this._vf.tolerance<0?0.001:this._vf.tolerance;} +else if(fieldName.indexOf("destination")>=0) +{if(!this._value0.equals(this._vf.destination,this._eps)){this._value0=this._vf.destination;if(!this._vf.isActive){this.postMessage('isActive',true);}}} +else if(fieldName.indexOf("value")>=0) +{this._value1.setValues(this._vf.value);this._value2.setValues(this._vf.value);this._value3.setValues(this._vf.value);this._value4.setValues(this._vf.value);this._value5.setValues(this._vf.value);this._lastTick=0;this.postMessage('value',this._value5);if(!this._vf.isActive){this._lastTick=0;this.postMessage('isActive',true);}}},initialize:function() +{this._value0.setValues(this._vf.initialDestination);this._value1.setValues(this._vf.initialValue);this._value2.setValues(this._vf.initialValue);this._value3.setValues(this._vf.initialValue);this._value4.setValues(this._vf.initialValue);this._value5.setValues(this._vf.initialValue);this._lastTick=0;var active=!this._value0.equals(this._value1,this._eps);if(this._vf.isActive!==active){this.postMessage('isActive',active);}},tick:function(now) +{if(!this._lastTick) +{this._lastTick=now;return false;} +var delta=now-this._lastTick;var alpha=Math.exp(-delta/this._vf.tau);this._value1=this._vf.order>0&&this._vf.tau?this._value0.add(this._value1.subtract(this._value0).multiply(alpha)):new x3dom.fields.SFVec2f(this._value0.x,this._value0.y,this._value0.z);this._value2=this._vf.order>1&&this._vf.tau?this._value1.add(this._value2.subtract(this._value1).multiply(alpha)):new x3dom.fields.SFVec2f(this._value1.x,this._value1.y,this._value1.z);this._value3=this._vf.order>2&&this._vf.tau?this._value2.add(this._value3.subtract(this._value2).multiply(alpha)):new x3dom.fields.SFVec2f(this._value2.x,this._value2.y,this._value2.z);this._value4=this._vf.order>3&&this._vf.tau?this._value3.add(this._value4.subtract(this._value3).multiply(alpha)):new x3dom.fields.SFVec2f(this._value3.x,this._value3.y,this._value3.z);this._value5=this._vf.order>4&&this._vf.tau?this._value4.add(this._value5.subtract(this._value4).multiply(alpha)):new x3dom.fields.SFVec2f(this._value4.x,this._value4.y,this._value4.z);var dist=this._value1.subtract(this._value0).length();if(this._vf.order>1) +{var dist2=this._value2.subtract(this._value1).length();if(dist2>dist){dist=dist2;}} +if(this._vf.order>2) +{var dist3=this._value3.subtract(this._value2).length();if(dist3>dist){dist=dist3;}} +if(this._vf.order>3) +{var dist4=this._value4.subtract(this._value3).length();if(dist4>dist){dist=dist4;}} +if(this._vf.order>4) +{var dist5=this._value5.subtract(this._value4).length();if(dist5>dist){dist=dist5;}} +if(dist<=this._eps) +{this._value1.setValues(this._value0);this._value2.setValues(this._value0);this._value3.setValues(this._value0);this._value4.setValues(this._value0);this._value5.setValues(this._value0);this.postMessage('value',this._value0);this.postMessage('isActive',false);this._lastTick=0;return false;} +this.postMessage('value',this._value5);this._lastTick=now;return true;}}));x3dom.registerNodeType("ScalarChaser","Followers",defineClass(x3dom.nodeTypes.X3DChaserNode,function(ctx){x3dom.nodeTypes.ScalarChaser.superClass.call(this,ctx);this.addField_SFFloat(ctx,'initialDestination',0);this.addField_SFFloat(ctx,'initialValue',0);this.addField_SFFloat(ctx,'value',0);this.addField_SFFloat(ctx,'destination',0);this._buffer=[];this._previousValue=0;this._value=0;this.initialize();},{fieldChanged:function(fieldName) +{if(fieldName.indexOf("destination")>=0) +{this.initialize();this.updateBuffer(this._currTime);if(!this._vf.isActive){this.postMessage('isActive',true);}} +else if(fieldName.indexOf("value")>=0) +{this.initialize();this._previousValue=this._vf.value;for(var C=1;Cthis._eps);if(this._vf.isActive!==active){this.postMessage('isActive',active);}}},tick:function(now) +{this.initialize();this._currTime=now;if(!this._bufferEndTime) +{this._bufferEndTime=now;this._value=this._vf.initialValue;this.postMessage('value',this._value);return true;} +var Frac=this.updateBuffer(now);var Output=this._previousValue;var DeltaIn=this._buffer[this._buffer.length-1]-this._previousValue;var DeltaOut=DeltaIn*(this.stepResponse((this._buffer.length-1+Frac)*this._stepTime));Output=Output+DeltaOut;for(var C=this._buffer.length-2;C>=0;C--) +{DeltaIn=this._buffer[C]-this._buffer[C+1];DeltaOut=DeltaIn*(this.stepResponse((C+Frac)*this._stepTime));Output=Output+DeltaOut;} +if(Math.abs(Output-this._value)>this._eps){this._value=Output;this.postMessage('value',this._value);} +else{this.postMessage('isActive',false);} +return this._vf.isActive;},updateBuffer:function(now) +{var Frac=(now-this._bufferEndTime)/this._stepTime;var C;var NumToShift;var Alpha;if(Frac>=1) +{NumToShift=Math.floor(Frac);Frac-=NumToShift;if(NumToShift=NumToShift;C--){this._buffer[C]=this._buffer[C-NumToShift];} +for(C=0;C=0) +{if(Math.abs(this._value0-this._vf.destination)>this._eps){this._value0=this._vf.destination;if(!this._vf.isActive){this.postMessage('isActive',true);}}} +else if(fieldName.indexOf("value")>=0) +{this._value1=this._vf.value;this._value2=this._vf.value;this._value3=this._vf.value;this._value4=this._vf.value;this._value5=this._vf.value;this._lastTick=0;this.postMessage('value',this._value5);if(!this._vf.isActive){this._lastTick=0;this.postMessage('isActive',true);}}},initialize:function() +{this._value0=this._vf.initialDestination;this._value1=this._vf.initialValue;this._value2=this._vf.initialValue;this._value3=this._vf.initialValue;this._value4=this._vf.initialValue;this._value5=this._vf.initialValue;this._lastTick=0;var active=(Math.abs(this._value0-this._value1)>this._eps);if(this._vf.isActive!==active){this.postMessage('isActive',active);}},tick:function(now) +{if(!this._lastTick) +{this._lastTick=now;return false;} +var delta=now-this._lastTick;var alpha=Math.exp(-delta/this._vf.tau);this._value1=this._vf.order>0&&this._vf.tau?this._value0+alpha*(this._value1-this._value0):this._value0;this._value2=this._vf.order>1&&this._vf.tau?this._value1+alpha*(this._value2-this._value1):this._value1;this._value3=this._vf.order>2&&this._vf.tau?this._value2+alpha*(this._value3-this._value2):this._value2;this._value4=this._vf.order>3&&this._vf.tau?this._value3+alpha*(this._value4-this._value3):this._value3;this._value5=this._vf.order>4&&this._vf.tau?this._value4+alpha*(this._value5-this._value4):this._value4;var dist=Math.abs(this._value1-this._value0);if(this._vf.order>1) +{var dist2=Math.abs(this._value2-this._value1);if(dist2>dist){dist=dist2;}} +if(this._vf.order>2) +{var dist3=Math.abs(this._value3-this._value2);if(dist3>dist){dist=dist3;}} +if(this._vf.order>3) +{var dist4=Math.abs(this._value4-this._value3);if(dist4>dist){dist=dist4;}} +if(this._vf.order>4) +{var dist5=Math.abs(this._value5-this._value4);if(dist5>dist){dist=dist5;}} +if(dist<=this._eps) +{this._value1=this._value0;this._value2=this._value0;this._value3=this._value0;this._value4=this._value0;this._value5=this._value0;this.postMessage('value',this._value0);this.postMessage('isActive',false);this._lastTick=0;return false;} +this.postMessage('value',this._value5);this._lastTick=now;return true;}}));x3dom.registerNodeType("CoordinateDamper","Followers",defineClass(x3dom.nodeTypes.X3DDamperNode,function(ctx){x3dom.nodeTypes.CoordinateDamper.superClass.call(this,ctx);this.addField_MFVec3f(ctx,'initialDestination',[]);this.addField_MFVec3f(ctx,'initialValue',[]);this.addField_MFVec3f(ctx,'value',[]);this.addField_MFVec3f(ctx,'destination',[]);x3dom.debug.logWarning("CoordinateDamper NYI");}));x3dom.registerNodeType("TexCoordDamper2D","Followers",defineClass(x3dom.nodeTypes.X3DDamperNode,function(ctx){x3dom.nodeTypes.TexCoordDamper2D.superClass.call(this,ctx);this.addField_MFVec2f(ctx,'initialDestination',[]);this.addField_MFVec2f(ctx,'initialValue',[]);this.addField_MFVec2f(ctx,'value',[]);this.addField_MFVec2f(ctx,'destination',[]);x3dom.debug.logWarning("TexCoordDamper2D NYI");}));x3dom.registerNodeType("X3DInterpolatorNode","Interpolation",defineClass(x3dom.nodeTypes.X3DChildNode,function(ctx){x3dom.nodeTypes.X3DInterpolatorNode.superClass.call(this,ctx);this.addField_MFFloat(ctx,'key',[]);this.addField_SFFloat(ctx,'set_fraction',0);},{linearInterp:function(time,interp){if(time<=this._vf.key[0]) +return this._vf.keyValue[0];else if(time>=this._vf.key[this._vf.key.length-1]) +return this._vf.keyValue[this._vf.key.length-1];for(var i=0;i0?this._vf.key.length:1;var len=arr.length/key;for(var i=0;i=2)||(this._vf.keyVelocity.length==0));if(!sane) +x3dom.debug.logWarning("SplinePositionInterpolator Node: 'key' , 'keyValue' and/or 'keyVelocity' fields have inappropriate sizes");};this.calcDtot=function() +{this.dtot=0.0;for(var i=0;i2) +{for(i=0;i0.0){if(this._vf.set_fraction<=this._vf.key[0]) +value=x3dom.fields.SFVec3f.copy(this._vf.keyValue[0]);else if(this._vf.set_fraction>=this._vf.key[this._vf.key.length-1]) +value=x3dom.fields.SFVec3f.copy(this._vf.keyValue[this._vf.key.length-1]);} +for(var i=0;i0){this._updateCycleStopTime();} +this._backupStartTime=this._vf.startTime;this._backupStopTime=this._vf.stopTime;this._backupCycleInterval=this._vf.cycleInterval;},{tick:function(time) +{if(!this._vf.enabled){this._lastTime=time;return false;} +var isActive=(this._vf.cycleInterval>0&&time>=this._vf.startTime&&(time=this._vf.pauseTime&&this._vf.pauseTime>this._vf.resumeTime);if(isPaused&&!this._vf.isPaused){this.postMessage('isPaused',true);this.postMessage('pauseTime',time);}else if(!isPaused&&this._vf.isPaused){this.postMessage('isPaused',false);this.postMessage('resumeTime',time);} +if(!isPaused){var cycleFrac=this._getCycleAt(time);var cycle=Math.floor(cycleFrac);var cycleTime=this._vf.startTime+cycle*this._vf.cycleInterval;var adjustTime=0;if(this._vf.stopTime>this._vf.startTime&&this._lastTime=this._vf.stopTime) +adjustTime=this._vf.stopTime;else if(this._lastTime=cycleTime) +adjustTime=cycleTime;if(adjustTime>0){time=adjustTime;cycleFrac=this._getCycleAt(time);cycle=Math.floor(cycleFrac);} +var fraction=cycleFrac-cycle;if(fraction=0) +anchor=url.slice(aPos+1);var param=this._vf.parameter.length?this._vf.parameter[0]:"";var tPos=param.search("target=");var target="";if(tPos>=0) +target=param.slice(tPos+7);x3dom.debug.logInfo("Anchor url="+url+", target="+target+", #viewpoint="+anchor);if(target.length!=0||target!="_self"){window.open(this._nameSpace.getURL(url),target);} +else{window.location=this._nameSpace.getURL(url);}}}));x3dom.registerNodeType("Inline","Networking",defineClass(x3dom.nodeTypes.X3DGroupingNode,function(ctx){x3dom.nodeTypes.Inline.superClass.call(this,ctx);this.addField_MFString(ctx,'url',[]);this.addField_SFBool(ctx,'load',true);this.addField_MFString(ctx,'nameSpaceName',[]);this.addField_SFBool(ctx,'mapDEFToID',false);this.initDone=false;this.count=0;this.numRetries=x3dom.nodeTypes.Inline.MaximumRetries;},{fieldChanged:function(fieldName) +{if(fieldName=="url"){if(this._vf.nameSpaceName.length!=0){var node=this._xmlNode;if(node&&node.hasChildNodes()) +{while(node.childNodes.length>=1) +{node.removeChild(node.firstChild);}}} +this.loadInline();} +else if(fieldName=="render"){this.invalidateVolume();}},nodeChanged:function() +{if(!this.initDone){this.initDone=true;this.loadInline();}},fireEvents:function(eventType) +{if(this._xmlNode&&(this._xmlNode['on'+eventType]||this._xmlNode.hasAttribute('on'+eventType)||this._listeners[eventType])) +{var event={target:this._xmlNode,type:eventType,error:(eventType=="error")?"XMLHttpRequest Error":"",cancelBubble:false,stopPropagation:function(){this.cancelBubble=true;}};try{var attrib=this._xmlNode["on"+eventType];if(typeof(attrib)==="function"){attrib.call(this._xmlNode,event);} +else{var funcStr=this._xmlNode.getAttribute("on"+eventType);var func=new Function('event',funcStr);func.call(this._xmlNode,event);} +var list=this._listeners[eventType];if(list){for(var i=0;i=0)) +nameSpace.setBaseURL(url);else +nameSpace.setBaseURL(that._nameSpace.baseURL+url);newScene=nameSpace.setupTree(inlScene);that._nameSpace.addSpace(nameSpace);if(that._vf.nameSpaceName.length!=0) +{Array.forEach(inlScene.childNodes,function(childDomNode) +{if(childDomNode instanceof Element) +{setNamespace(that._vf.nameSpaceName,childDomNode,that._vf.mapDEFToID);that._xmlNode.appendChild(childDomNode);}});}} +else{if(xml&&xml.localName) +x3dom.debug.logError('No Scene in '+xml.localName);else +x3dom.debug.logError('No Scene in resource');} +var global=x3dom.getGlobal();if(that._childNodes.length>0&&that._childNodes[0]&&that._childNodes[0]._nameSpace) +that._nameSpace.removeSpace(that._childNodes[0]._nameSpace);while(that._childNodes.length!==0) +global['_remover']=that.removeChild(that._childNodes[0]);delete global['_remover'];if(newScene) +{that.addChild(newScene);that.invalidateVolume();that._nameSpace.doc.downloadCount-=1;that._nameSpace.doc.needRender=true;x3dom.debug.logInfo('Inline: added '+that._vf.url[0]+' to scene.');var theScene=that._nameSpace.doc._scene;if(theScene){theScene.invalidateVolume();window.setTimeout(function(){that.invalidateVolume();theScene.updateVolume();that._nameSpace.doc.needRender=true;},1000);} +that.fireEvents("load");} +newScene=null;nameSpace=null;inlScene=null;xml=null;return xhr;};if(this._vf.url.length&&this._vf.url[0].length) +{var xhrURI=this._nameSpace.getURL(this._vf.url[0]);xhr.open('GET',xhrURI,true);this._nameSpace.doc.downloadCount+=1;try{xhr.send(null);} +catch(ex){this.fireEvents("error");x3dom.debug.logError(this._vf.url[0]+": "+ex);}}}}));x3dom.nodeTypes.Inline.AwaitTranscoding=202;x3dom.nodeTypes.Inline.MaximumRetries=15;function setNamespace(prefix,childDomNode,mapDEFToID) +{if(childDomNode instanceof Element&&childDomNode.__setAttribute!==undefined){if(childDomNode.hasAttribute('id')){childDomNode.__setAttribute('id',prefix.toString().replace(' ','')+'__'+childDomNode.getAttribute('id'));}else if(childDomNode.hasAttribute('DEF')&&mapDEFToID){childDomNode.__setAttribute('id',prefix.toString().replace(' ','')+'__'+childDomNode.getAttribute('DEF'));if(!childDomNode.id) +childDomNode.id=childDomNode.__getAttribute('id');}} +if(childDomNode.hasChildNodes()){Array.forEach(childDomNode.childNodes,function(children){setNamespace(prefix,children,mapDEFToID);});}} +x3dom.registerNodeType("MultiPart","Networking",defineClass(x3dom.nodeTypes.Inline,function(ctx){x3dom.nodeTypes.MultiPart.superClass.call(this,ctx);this.addField_MFString(ctx,'urlIDMap',[]);this.addField_SFBool(ctx,'isPickable',true);this.addField_SFString(ctx,'sortType','auto');this.addField_SFBool(ctx,'solid',false);this.addField_SFInt32(ctx,'sortKey',0);this.addField_SFString(ctx,'initialVisibility','auto');this._idMap=null;this._inlineNamespace=null;this._highlightedParts=[];this._minId=0;this._maxId=0;this._lastId=-1;this._lastClickedId=-1;this._lastButton=0;this._identifierToPartId=[];this._identifierToAppId=[];this._visiblePartsPerShape=[];this._partVolume=[];this._partVisibility=[];this._originalColor=[];this._materials=[];},{fieldChanged:function(fieldName) +{if(fieldName=="url"){if(this._vf.nameSpaceName.length!=0){var node=this._xmlNode;if(node&&node.hasChildNodes()) +{while(node.childNodes.length>=1) +{node.removeChild(node.firstChild);}}} +this.loadInline();} +else if(fieldName=="render"){this.invalidateVolume();}},nodeChanged:function() +{if(!this.initDone){this.initDone=true;this.loadIDMap();}},getVolume:function() +{var vol=this._graph.volume;if(!this.volumeValid()&&this._vf.render) +{for(var i=0;i=0)) +{that._inlineNamespace.setBaseURL(url);} +else +{that._inlineNamespace.setBaseURL(that._nameSpace.baseURL+url);} +that.replaceMaterials(inlScene);newScene=that._inlineNamespace.setupTree(inlScene);that._nameSpace.addSpace(that._inlineNamespace);if(that._vf.nameSpaceName.length!=0) +{Array.forEach(inlScene.childNodes,function(childDomNode) +{if(childDomNode instanceof Element) +{setNamespace(that._vf.nameSpaceName,childDomNode,that._vf.mapDEFToID);that._xmlNode.appendChild(childDomNode);}});}} +else{if(xml&&xml.localName){x3dom.debug.logError('No Scene in '+xml.localName);}else{x3dom.debug.logError('No Scene in resource');}} +var global=x3dom.getGlobal();if(that._childNodes.length>0&&that._childNodes[0]&&that._childNodes[0]._nameSpace){that._nameSpace.removeSpace(that._childNodes[0]._nameSpace);} +while(that._childNodes.length!==0){global['_remover']=that.removeChild(that._childNodes[0]);} +delete global['_remover'];if(newScene) +{that.addChild(newScene);that.invalidateVolume();that._nameSpace.doc.downloadCount-=1;that._nameSpace.doc.needRender=true;x3dom.debug.logInfo('Inline: added '+that._vf.url[0]+' to scene.');var theScene=that._nameSpace.doc._scene;if(theScene){theScene.invalidateVolume();window.setTimeout(function(){that.invalidateVolume();theScene.updateVolume();that._nameSpace.doc.needRender=true;},1000);} +that.appendAPI();that.fireEvents("load");} +newScene=null;inlScene=null;xml=null;return xhr;};if(this._vf.url.length&&this._vf.url[0].length) +{var xhrURI=this._nameSpace.getURL(this._vf.url[0]);xhr.open('GET',xhrURI,true);this._nameSpace.doc.downloadCount+=1;try{xhr.send(null);} +catch(ex){this.fireEvents("error");x3dom.debug.logError(this._vf.url[0]+": "+ex);}}}}));x3dom.registerNodeType("X3DBackgroundNode","EnvironmentalEffects",defineClass(x3dom.nodeTypes.X3DBindableNode,function(ctx){x3dom.nodeTypes.X3DBackgroundNode.superClass.call(this,ctx);var trans=(ctx&&ctx.autoGen)?1:0;this.addField_SFString(ctx,'crossOrigin','');this.addField_MFColor(ctx,'groundColor',[]);this.addField_MFFloat(ctx,'groundAngle',[]);this.addField_MFColor(ctx,'skyColor',[new x3dom.fields.SFColor(0,0,0)]);this.addField_MFFloat(ctx,'skyAngle',[]);this.addField_SFFloat(ctx,'transparency',trans);this._dirty=true;},{getSkyColor:function(){return new x3dom.fields.SFColor(0,0,0);},getTransparency:function(){return 0;},getTexUrl:function(){return[];}}));x3dom.registerNodeType("X3DFogNode","EnvironmentalEffects",defineClass(x3dom.nodeTypes.X3DBindableNode,function(ctx){x3dom.nodeTypes.X3DFogNode.superClass.call(this,ctx);this.addField_SFColor(ctx,'color',1,1,1);this.addField_SFString(ctx,'fogType',"LINEAR");this.addField_SFFloat(ctx,'visibilityRange',0);},{}));x3dom.registerNodeType("Fog","EnvironmentalEffects",defineClass(x3dom.nodeTypes.X3DFogNode,function(ctx){x3dom.nodeTypes.Fog.superClass.call(this,ctx);},{}));x3dom.registerNodeType("Background","EnvironmentalEffects",defineClass(x3dom.nodeTypes.X3DBackgroundNode,function(ctx){x3dom.nodeTypes.Background.superClass.call(this,ctx);this.addField_MFString(ctx,'backUrl',[]);this.addField_MFString(ctx,'bottomUrl',[]);this.addField_MFString(ctx,'frontUrl',[]);this.addField_MFString(ctx,'leftUrl',[]);this.addField_MFString(ctx,'rightUrl',[]);this.addField_MFString(ctx,'topUrl',[]);},{fieldChanged:function(fieldName) +{if(fieldName.indexOf("Url")>0||fieldName=="transparency"||fieldName.search("sky")>=0||fieldName.search("ground")>=0){this._dirty=true;} +else if(fieldName.indexOf("bind")>=0){this.bind(this._vf.bind);}},getSkyColor:function(){return this._vf.skyColor;},getGroundColor:function(){return this._vf.groundColor;},getTransparency:function(){return this._vf.transparency;},getTexUrl:function(){return[this._nameSpace.getURL(this._vf.backUrl[0]),this._nameSpace.getURL(this._vf.frontUrl[0]),this._nameSpace.getURL(this._vf.bottomUrl[0]),this._nameSpace.getURL(this._vf.topUrl[0]),this._nameSpace.getURL(this._vf.leftUrl[0]),this._nameSpace.getURL(this._vf.rightUrl[0])];}}));x3dom.registerNodeType("X3DEnvironmentNode","EnvironmentalEffects",defineClass(x3dom.nodeTypes.X3DBindableNode,function(ctx){x3dom.nodeTypes.X3DEnvironmentNode.superClass.call(this,ctx);}));x3dom.registerNodeType("Environment","EnvironmentalEffects",defineClass(x3dom.nodeTypes.X3DEnvironmentNode,function(ctx){x3dom.nodeTypes.Environment.superClass.call(this,ctx);this.addField_SFBool(ctx,'sortTrans',true);this.addField_SFBool(ctx,'shadowExcludeTransparentObjects',false);this.addField_SFString(ctx,'gammaCorrectionDefault',"linear");this.addField_SFBool(ctx,'frustumCulling',true);this.addField_SFBool(ctx,'smallFeatureCulling',false);this.addField_SFFloat(ctx,'smallFeatureThreshold',1.0);this.addField_SFBool(ctx,'occlusionCulling',false);this.addField_SFFloat(ctx,'occlusionVisibilityThreshold',0.0);this.addField_SFBool(ctx,'lowPriorityCulling',false);this.addField_SFFloat(ctx,'lowPriorityThreshold',1.0);this.addField_SFBool(ctx,'tessellationDetailCulling',false);this.addField_SFFloat(ctx,'tessellationErrorThreshold',0.0);this.addField_SFBool(ctx,'enableARC',false);this.addField_SFFloat(ctx,'minFrameRate',1.0);this.addField_SFFloat(ctx,'maxFrameRate',62.5);this.addField_SFFloat(ctx,'userDataFactor',-1);this.addField_SFFloat(ctx,'smallFeatureFactor',-1);this.addField_SFFloat(ctx,'occlusionVisibilityFactor',-1);this.addField_SFFloat(ctx,'lowPriorityFactor',-1);this.addField_SFFloat(ctx,'tessellationErrorFactor',-1);this.addField_SFBool(ctx,'SSAO',false);this.addField_SFFloat(ctx,'SSAOradius',0.7);this.addField_SFFloat(ctx,'SSAOamount',0.3);this.addField_SFInt32(ctx,'SSAOrandomTextureSize',4);this.addField_SFInt32(ctx,'SSAOblurDepthTreshold',1);this._validGammaCorrectionTypes=["none","fastlinear","linear"];this.checkSanity();},{checkSanity:function() +{var checkParam=function(flag,value,defaultOn,defaultOff) +{if(flag&&(value==defaultOff)) +return defaultOn;if(!flag&&(value!=defaultOff)) +return defaultOff;return value;};this._smallFeatureThreshold=checkParam(this._vf.smallFeatureCulling,this._vf.smallFeatureThreshold,10,0);this._lowPriorityThreshold=checkParam(this._vf.lowPriorityCulling,this._vf.lowPriorityThreshold,0.5,1);this._occlusionVisibilityThreshold=checkParam(this._vf.occlusionCulling,this._vf.occlusionVisibilityThreshold,1,0);this._tessellationErrorThreshold=checkParam(this._vf.tessellationDetailCulling,this._vf.tessellationErrorThreshold,1,0);var checkGamma=function(field,that){field=field.toLowerCase();if(that._validGammaCorrectionTypes.indexOf(field)>-1){return field;} +else{x3dom.debug.logWarning(field+" gammaCorrectionDefault may only be linear (default), fastLinear, or none");return that._validGammaCorrectionTypes[0];}};this._vf.gammaCorrectionDefault=checkGamma(this._vf.gammaCorrectionDefault,this);}}));x3dom.registerNodeType("X3DViewpointNode","Navigation",defineClass(x3dom.nodeTypes.X3DBindableNode,function(ctx){x3dom.nodeTypes.X3DViewpointNode.superClass.call(this,ctx);if(ctx&&ctx.xmlNode){var domNode=ctx.xmlNode;if(!domNode.resetView&&!domNode.getFieldOfView&&!domNode.getNear&&!domNode.getFar) +{domNode.resetView=function(){var that=this._x3domNode;that.resetView();that._nameSpace.doc.needRender=true;};domNode.getFieldOfView=function(){return this._x3domNode.getFieldOfView();};domNode.getNear=function(){return this._x3domNode.getNear();};domNode.getFar=function(){return this._x3domNode.getFar();};}}},{activate:function(prev){var viewarea=this._nameSpace.doc._viewarea;if(prev){viewarea.animateTo(this,prev._autoGen?null:prev);} +viewarea._needNavigationMatrixUpdate=true;x3dom.nodeTypes.X3DBindableNode.prototype.activate.call(this,prev);},deactivate:function(prev){x3dom.nodeTypes.X3DBindableNode.prototype.deactivate.call(this,prev);},getTransformation:function(){return this.getCurrentTransform();},getCenterOfRotation:function(){return new x3dom.fields.SFVec3f(0,0,0);},setCenterOfRotation:function(cor){this._vf.centerOfRotation.setValues(cor);},getFieldOfView:function(){return 1.57079633;},setView:function(newView){var mat=this.getCurrentTransform();this._viewMatrix=newView.mult(mat);},setViewAbsolute:function(newView) +{this._viewMatrix=newView},setProjectionMatrix:function(matrix) +{},resetView:function(){},getNear:function(){return 0.1;},getFar:function(){return 10000;},getImgPlaneHeightAtDistOne:function(){return 2.0;},getViewMatrix:function(){return null;},getProjectionMatrix:function(aspect){return null;}}));x3dom.registerNodeType("Viewpoint","Navigation",defineClass(x3dom.nodeTypes.X3DViewpointNode,function(ctx){x3dom.nodeTypes.Viewpoint.superClass.call(this,ctx);this.addField_SFFloat(ctx,'fieldOfView',0.785398);this.addField_SFVec3f(ctx,'position',0,0,10);this.addField_SFRotation(ctx,'orientation',0,0,0,1);this.addField_SFVec3f(ctx,'centerOfRotation',0,0,0);this.addField_SFFloat(ctx,'zNear',-1);this.addField_SFFloat(ctx,'zFar',-1);this._viewMatrix=x3dom.fields.SFMatrix4f.translation(this._vf.position).mult(this._vf.orientation.toMatrix()).inverse();this._projMatrix=null;this._lastAspect=1.0;this._zRatio=10000;this._zNear=this._vf.zNear;this._zFar=this._vf.zFar;this._imgPlaneHeightAtDistOne=2.0*Math.tan(this._vf.fieldOfView/2.0);},{fieldChanged:function(fieldName){if(fieldName=="position"||fieldName=="orientation"){this.resetView();} +else if(fieldName=="fieldOfView"||fieldName=="zNear"||fieldName=="zFar"){this._projMatrix=null;this._zNear=this._vf.zNear;this._zFar=this._vf.zFar;this._imgPlaneHeightAtDistOne=2.0*Math.tan(this._vf.fieldOfView/2.0);} +else if(fieldName.indexOf("bind")>=0){this.bind(this._vf.bind);}},setProjectionMatrix:function(matrix) +{this._projMatrix=matrix;},getCenterOfRotation:function(){return this._vf.centerOfRotation;},getViewMatrix:function(){return this._viewMatrix;},getFieldOfView:function(){return this._vf.fieldOfView;},resetView:function(){this._viewMatrix=x3dom.fields.SFMatrix4f.translation(this._vf.position).mult(this._vf.orientation.toMatrix()).inverse();},getNear:function(){return this._zNear;},getFar:function(){return this._zFar;},getImgPlaneHeightAtDistOne:function(){return this._imgPlaneHeightAtDistOne;},getProjectionMatrix:function(aspect) +{var fovy=this._vf.fieldOfView;var zfar=this._vf.zFar;var znear=this._vf.zNear;if(znear<=0||zfar<=0) +{var nearScale=0.8,farScale=1.2;var viewarea=this._nameSpace.doc._viewarea;var scene=viewarea._scene;var min=x3dom.fields.SFVec3f.copy(scene._lastMin);var max=x3dom.fields.SFVec3f.copy(scene._lastMax);var dia=max.subtract(min);var sRad=dia.length()/2;var mat=viewarea.getViewMatrix().inverse();var vp=mat.e3();var translation=new x3dom.fields.SFVec3f(0,0,0),scaleFactor=new x3dom.fields.SFVec3f(1,1,1);var rotation=new x3dom.fields.Quaternion(0,0,1,0),scaleOrientation=new x3dom.fields.Quaternion(0,0,1,0);mat.getTransform(translation,rotation,scaleFactor,scaleOrientation);var minScal=scaleFactor.x,maxScal=scaleFactor.x;if(maxScalscaleFactor.y)minScal=scaleFactor.y;if(maxScalscaleFactor.z)minScal=scaleFactor.z;if(maxScal>1) +nearScale/=maxScal;else if(minScal>x3dom.fields.Eps&&minScal<1) +farScale/=minScal;var sCenter=min.add(dia.multiply(0.5));var vDist=(vp.subtract(sCenter)).length();if(sRad){if(vDist>sRad) +znear=(vDist-sRad)*nearScale;else +znear=0;zfar=(vDist+sRad)*farScale;} +else{znear=0.1;zfar=100000;} +var zNearLimit=zfar/this._zRatio;znear=Math.max(znear,Math.max(x3dom.fields.Eps,zNearLimit));if(zfar>this._vf.zNear&&this._vf.zNear>0) +znear=this._vf.zNear;if(this._vf.zFar>znear) +zfar=this._vf.zFar;if(zfar<=znear) +zfar=znear+1;} +if(this._projMatrix==null) +{this._projMatrix=x3dom.fields.SFMatrix4f.perspective(fovy,aspect,znear,zfar);} +else if(this._zNear!=znear||this._zFar!=zfar) +{var div=znear-zfar;this._projMatrix._22=(znear+zfar)/div;this._projMatrix._23=2*znear*zfar/div;} +else if(this._lastAspect!=aspect) +{this._projMatrix._00=(1/Math.tan(fovy/2))/aspect;this._lastAspect=aspect;} +this._zNear=znear;this._zFar=zfar;return this._projMatrix;}}));x3dom.registerNodeType("OrthoViewpoint","Navigation",defineClass(x3dom.nodeTypes.X3DViewpointNode,function(ctx){x3dom.nodeTypes.OrthoViewpoint.superClass.call(this,ctx);this.addField_MFFloat(ctx,'fieldOfView',[-1,-1,1,1]);this.addField_SFVec3f(ctx,'position',0,0,10);this.addField_SFRotation(ctx,'orientation',0,0,0,1);this.addField_SFVec3f(ctx,'centerOfRotation',0,0,0);this.addField_SFFloat(ctx,'zNear',0.1);this.addField_SFFloat(ctx,'zFar',10000);this._viewMatrix=null;this._projMatrix=null;this._lastAspect=1.0;this.resetView();},{fieldChanged:function(fieldName){if(fieldName=="position"||fieldName=="orientation"){this.resetView();} +else if(fieldName=="fieldOfView"||fieldName=="zNear"||fieldName=="zFar"){this._projMatrix=null;this.resetView();} +else if(fieldName.indexOf("bind")>=0){this.bind(this._vf.bind);}},getCenterOfRotation:function(){return this._vf.centerOfRotation;},getViewMatrix:function(){return this._viewMatrix;},resetView:function(){var offset=x3dom.fields.SFMatrix4f.translation(new x3dom.fields.SFVec3f((this._vf.fieldOfView[0]+this._vf.fieldOfView[2])/2,(this._vf.fieldOfView[1]+this._vf.fieldOfView[3])/2,0));this._viewMatrix=x3dom.fields.SFMatrix4f.translation(this._vf.position).mult(this._vf.orientation.toMatrix());this._viewMatrix=this._viewMatrix.mult(offset).inverse();},getNear:function(){return this._vf.zNear;},getFar:function(){return this._vf.zFar;},getProjectionMatrix:function(aspect) +{if(this._projMatrix==null||this._lastAspect!=aspect) +{var near=this.getNear();var far=this.getFar();var left=this._vf.fieldOfView[0];var bottom=this._vf.fieldOfView[1];var right=this._vf.fieldOfView[2];var top=this._vf.fieldOfView[3];this._projMatrix=x3dom.fields.SFMatrix4f.ortho(left,right,bottom,top,near,far,aspect);} +this._lastAspect=aspect;return this._projMatrix;}}));x3dom.registerNodeType("Viewfrustum","Navigation",defineClass(x3dom.nodeTypes.X3DViewpointNode,function(ctx){x3dom.nodeTypes.Viewfrustum.superClass.call(this,ctx);this.addField_SFMatrix4f(ctx,'modelview',1,0,0,0,0,1,0,0,0,0,1,0,0,0,0,1);this.addField_SFMatrix4f(ctx,'projection',1,0,0,0,0,1,0,0,0,0,1,0,0,0,0,1);this._viewMatrix=this._vf.modelview.transpose().inverse();this._projMatrix=this._vf.projection.transpose();this._centerOfRotation=new x3dom.fields.SFVec3f(0,0,0);},{fieldChanged:function(fieldName){if(fieldName=="modelview"){this.resetView();} +else if(fieldName=="projection"){this._projMatrix=this._vf.projection.transpose();} +else if(fieldName.indexOf("bind")>=0){this.bind(this._vf.bind);}},getCenterOfRotation:function(){return this._centerOfRotation;},setCenterOfRotation:function(cor){this._centerOfRotation.setValues(cor);},getViewMatrix:function(){return this._viewMatrix;},getFieldOfView:function(){return(2.0*Math.atan(1.0/this._projMatrix._11));},getImgPlaneHeightAtDistOne:function(){return 2.0/this._projMatrix._11;},resetView:function(){this._viewMatrix=this._vf.modelview.transpose().inverse();this._centerOfRotation=new x3dom.fields.SFVec3f(0,0,0);},getProjectionMatrix:function(aspect){return this._projMatrix;}}));x3dom.registerNodeType("X3DNavigationInfoNode","Navigation",defineClass(x3dom.nodeTypes.X3DBindableNode,function(ctx){x3dom.nodeTypes.X3DNavigationInfoNode.superClass.call(this,ctx);}));x3dom.registerNodeType("NavigationInfo","Navigation",defineClass(x3dom.nodeTypes.X3DNavigationInfoNode,function(ctx){x3dom.nodeTypes.NavigationInfo.superClass.call(this,ctx);this.addField_SFBool(ctx,'headlight',true);this.addField_MFString(ctx,'type',["EXAMINE","ANY"]);this.addField_MFFloat(ctx,'typeParams',[-0.4,60,0.05,2.8]);this.addField_SFString(ctx,'explorationMode','all');this.addField_MFFloat(ctx,'avatarSize',[0.25,1.6,0.75]);this.addField_SFFloat(ctx,'visibilityLimit',0.0);this.addField_SFFloat(ctx,'speed',1.0);this.addField_SFTime(ctx,'transitionTime',1.0);this.addField_MFString(ctx,'transitionType',["LINEAR"]);this._validTypes=["none","examine","turntable","fly","freefly","lookat","lookaround","walk","game","helicopter","any"];this._heliUpdated=false;var type=this.checkType(this.getType());x3dom.debug.logInfo("NavType: "+type);},{fieldChanged:function(fieldName){if(fieldName=="typeParams"){this._heliUpdated=false;} +else if(fieldName=="type"){var type=this.checkType(this.getType());switch(type){case'game':this._nameSpace.doc._viewarea.initMouseState();break;case'helicopter':this._heliUpdated=false;break;case"turntable":this._nameSpace.doc._viewarea.initMouseState();this._nameSpace.doc._viewarea.initTurnTable(this);break;default:break;} +this._vf.type[0]=type;x3dom.debug.logInfo("Switch to "+type+" mode.");}},setType:function(type,viewarea){var navType=this.checkType(type.toLowerCase());var oldType=this.checkType(this.getType());switch(navType){case'game':if(oldType!==navType){if(viewarea) +viewarea.initMouseState();else +this._nameSpace.doc._viewarea.initMouseState();} +break;case'helicopter':if(oldType!==navType){this._heliUpdated=false;} +break;case"turntable":if(oldType!==navType){if(viewarea){viewarea.initMouseState();viewarea.initTurnTable(this);} +else{this._nameSpace.doc._viewarea.initMouseState();this._nameSpace.doc._viewarea.initTurnTable(this);}} +break;default:break;} +this._vf.type[0]=navType;x3dom.debug.logInfo("Switch to "+navType+" mode.");},getType:function(){var type=this._vf.type[0].toLowerCase();if(type.length<=1) +type="none";else if(type=="any") +type="examine";return type;},getTypeParams:function(){var length=this._vf.typeParams.length;var theta=(length>=1)?this._vf.typeParams[0]:-0.4;var height=(length>=2)?this._vf.typeParams[1]:60.0;var minAngle=(length>=3)?this._vf.typeParams[2]:x3dom.fields.Eps;var maxAngle=(length>=4)?this._vf.typeParams[3]:Math.PI-x3dom.fields.Eps;var params=[theta,height,minAngle,maxAngle];if(length>=5) +{params.push(this._vf.typeParams[4]);} +return params;},setTypeParams:function(params){for(var i=0;i-1){return type;} +else{x3dom.debug.logWarning(type+" is no valid navigation type, use one of "+ +this._validTypes.toString());return"examine";}},getExplorationMode:function(){switch(this._vf.explorationMode.toLowerCase()){case"all":return 7;case"rotate":return 1;case"zoom":return 2;case"pan":return 4;case"none":return 0;default:return 7;}}}));x3dom.registerNodeType("Billboard","Navigation",defineClass(x3dom.nodeTypes.X3DGroupingNode,function(ctx){x3dom.nodeTypes.Billboard.superClass.call(this,ctx);this.addField_SFVec3f(ctx,'axisOfRotation',0,1,0);this._eye=new x3dom.fields.SFVec3f(0,0,0);this._eyeViewUp=new x3dom.fields.SFVec3f(0,0,0);this._eyeLook=new x3dom.fields.SFVec3f(0,0,0);},{collectDrawableObjects:function(transform,drawableCollection,singlePath,invalidateCache,planeMask,clipPlanes) +{if(singlePath&&(this._parentNodes.length>1)) +singlePath=false;if(singlePath&&(invalidateCache=invalidateCache||this.cacheInvalid())) +this.invalidateCache();planeMask=drawableCollection.cull(transform,this.graphState(),singlePath,planeMask);if(planeMask<=0){return;} +singlePath=false;var vol=this.getVolume();var min=x3dom.fields.SFVec3f.MAX();var max=x3dom.fields.SFVec3f.MIN();vol.getBounds(min,max);var mat_view=drawableCollection.viewMatrix;var center=new x3dom.fields.SFVec3f(0,0,0);center=mat_view.inverse().multMatrixPnt(center);var mat_view_model=mat_view.mult(transform);this._eye=transform.inverse().multMatrixPnt(center);this._eyeViewUp=new x3dom.fields.SFVec3f(mat_view_model._10,mat_view_model._11,mat_view_model._12);this._eyeLook=new x3dom.fields.SFVec3f(mat_view_model._20,mat_view_model._21,mat_view_model._22);var rotMat=x3dom.fields.SFMatrix4f.identity();var mid=max.add(min).multiply(0.5);var billboard_to_viewer=this._eye.subtract(mid);if(this._vf.axisOfRotation.equals(new x3dom.fields.SFVec3f(0,0,0),x3dom.fields.Eps)){var rot1=x3dom.fields.Quaternion.rotateFromTo(billboard_to_viewer,new x3dom.fields.SFVec3f(0,0,1));rotMat=rot1.toMatrix().transpose();var yAxis=rotMat.multMatrixPnt(new x3dom.fields.SFVec3f(0,1,0)).normalize();var zAxis=rotMat.multMatrixPnt(new x3dom.fields.SFVec3f(0,0,1)).normalize();if(!this._eyeViewUp.equals(new x3dom.fields.SFVec3f(0,0,0),x3dom.fields.Eps)){var rot2=x3dom.fields.Quaternion.rotateFromTo(this._eyeLook,zAxis);var rotatedyAxis=rot2.toMatrix().transpose().multMatrixVec(yAxis);var rot3=x3dom.fields.Quaternion.rotateFromTo(this._eyeViewUp,rotatedyAxis);rotMat=rot2.toMatrix().transpose().mult(rotMat);rotMat=rot3.toMatrix().transpose().mult(rotMat);}} +else{var normalPlane=this._vf.axisOfRotation.cross(billboard_to_viewer).normalize();if(this._eye.z<0){normalPlane=normalPlane.multiply(-1);} +var degreesToRotate=Math.asin(normalPlane.dot(new x3dom.fields.SFVec3f(0,0,1)));if(this._eye.z<0){degreesToRotate+=Math.PI;} +rotMat=x3dom.fields.SFMatrix4f.parseRotation(this._vf.axisOfRotation.x+", "+this._vf.axisOfRotation.y+", "+ +this._vf.axisOfRotation.z+", "+degreesToRotate*(-1));} +var childTransform=this.transformMatrix(transform.mult(rotMat));for(var i=0,i_n=this._childNodes.length;i1)) +singlePath=false;if(singlePath&&(invalidateCache=invalidateCache||this.cacheInvalid())) +this.invalidateCache();planeMask=drawableCollection.cull(transform,this.graphState(),singlePath,planeMask);if(planeMask<=0){return;} +var cnode,childTransform;if(singlePath){if(!this._graph.globalMatrix){this._graph.globalMatrix=this.transformMatrix(transform);} +childTransform=this._graph.globalMatrix;} +else{childTransform=this.transformMatrix(transform);} +for(var i=0,n=this._childNodes.length;i1)) +singlePath=false;if(singlePath&&(invalidateCache=invalidateCache||this.cacheInvalid())) +this.invalidateCache();planeMask=drawableCollection.cull(transform,this.graphState(),singlePath,planeMask);if(planeMask<=0){return;} +singlePath=false;this.visitChildren(transform,drawableCollection,singlePath,invalidateCache,planeMask,clipPlanes);},visitChildren:function(transform,drawableCollection,singlePath,invalidateCache,planeMask,clipPlanes){}}));x3dom.registerNodeType("LOD","Navigation",defineClass(x3dom.nodeTypes.X3DLODNode,function(ctx){x3dom.nodeTypes.LOD.superClass.call(this,ctx);this.addField_MFFloat(ctx,"range",[]);this._lastRangePos=-1;},{visitChildren:function(transform,drawableCollection,singlePath,invalidateCache,planeMask,clipPlanes) +{var i=0,n=this._childNodes.length;var mat_view=drawableCollection.viewMatrix;var center=new x3dom.fields.SFVec3f(0,0,0);center=mat_view.inverse().multMatrixPnt(center);this._eye=transform.inverse().multMatrixPnt(center);var len=this._vf.center.subtract(this._eye).length();while(ithis._vf.range[i]){i++;} +if(i&&i>=n){i=n-1;} +this._lastRangePos=i;var cnode=this._childNodes[i];if(n&&cnode) +{var childTransform=this.transformMatrix(transform);cnode.collectDrawableObjects(childTransform,drawableCollection,singlePath,invalidateCache,planeMask,clipPlanes);}},getVolume:function() +{var vol=this._graph.volume;if(!this.volumeValid()&&this._vf.render) +{var child,childVol;if(this._lastRangePos>=0){child=this._childNodes[this._lastRangePos];childVol=(child&&child._vf.render===true)?child.getVolume():null;if(childVol&&childVol.isValid()) +vol.extendBounds(childVol.min,childVol.max);} +else{for(var i=0,n=this._childNodes.length;ix3dom.fields.Eps&&len*this._vf.subScale<=this._vf.size.length()){if(this._childNodes.length<=1){var offset=new Array(new x3dom.fields.SFVec3f(-0.25*this._vf.size.x,0.25*this._vf.size.y,0),new x3dom.fields.SFVec3f(0.25*this._vf.size.x,0.25*this._vf.size.y,0),new x3dom.fields.SFVec3f(-0.25*this._vf.size.x,-0.25*this._vf.size.y,0),new x3dom.fields.SFVec3f(0.25*this._vf.size.x,-0.25*this._vf.size.y,0));for(l=0;l<4;l++){var node=new x3dom.nodeTypes.DynamicLOD();node._nameSpace=this._nameSpace;node._eye.setValues(this._eye);node.level=this.level+1;node.quadrant=l;node.cell=this.cell+l;node._vf.urlHead=this._vf.urlHead;node._vf.urlCenter=this._vf.urlCenter;node._vf.urlTail=this._vf.urlTail;node._vf.center=this._vf.center.add(offset[l]);node._vf.size=this._vf.size.multiply(0.5);node._vf.subdivision.setValues(this._vf.subdivision);var app=new x3dom.nodeTypes.Appearance();var tex=new x3dom.nodeTypes.ImageTexture();tex._nameSpace=this._nameSpace;tex._vf.url[0]=this._vf.urlHead+node.quadrant+this._vf.urlCenter+node.cell+this._vf.urlTail;app.addChild(tex);tex.nodeChanged();var shape=new x3dom.nodeTypes.Shape();shape._nameSpace=this._nameSpace;shape.addChild(app);app.nodeChanged();node.addChild(shape,"root");shape.nodeChanged();this.addChild(node);node.nodeChanged();}} +else{for(l=1;l=0&&pos=3,"RenderedTexture.dimensions requires at least 3 entries.");this._clearParents=true;this._needRenderUpdate=true;},{nodeChanged:function() +{this._clearParents=true;this._needRenderUpdate=true;},fieldChanged:function(fieldName) +{switch(fieldName) +{case"excludeNodes":this._clearParents=true;break;case"update":if(this._vf.update.toUpperCase()=="NEXT_FRAME_ONLY"||this._vf.update.toUpperCase()=="ALWAYS"){this._needRenderUpdate=true;} +break;default:break;}},getViewMatrix:function() +{if(this._clearParents&&this._cf.excludeNodes.nodes.length){var that=this;Array.forEach(this._cf.excludeNodes.nodes,function(node){for(var i=0,n=node._parentNodes.length;i11)?11:this._vf.iterations;this._vf.iterations=(this._vf.iterations<3)?3:this._vf.iterations;this._vf.maxLevel=(this._vf.maxLevel>11)?11:this._vf.maxLevel;this._vf.maxLevel=(this._vf.maxLevel<3)?3:this._vf.maxLevel;this._vf.maxLevel=(this._vf.maxLevel>this._vf.iterations)?this._vf.iterations:this._vf.maxLevel;var repeatConfig=[{x:4,y:8},{x:8,y:8},{x:8,y:16},{x:16,y:16},{x:16,y:32},{x:32,y:32},{x:32,y:64},{x:64,y:64},{x:64,y:128}];this._repeat=new x3dom.fields.SFVec2f(this._vf.dimensions[0]/repeatConfig[this._vf.iterations-3].x,this._vf.dimensions[1]/repeatConfig[this._vf.iterations-3].y);this._renderedImage=0;this._currLoadLevel=0;this._loadLevel=1;},{nextLevel:function(){if(this._loadLevel"+"http://x3dom.org/x3dom/doc/help/composedShader.html)\n"+" attribute vec3 position;\n"+" attribute vec3 normal;\n"+" attribute vec2 texcoord;\n"+" attribute vec3 color;\n"+" uniform mat4 modelViewProjectionMatrix;\n"+" uniform mat4 modelViewMatrix;\n"+" uniform mat4 normalMatrix;\n"+" uniform mat4 viewMatrix;\n"+" uniform sampler2D tex;\n");x3dom.nodeTypes.ComposedShader.ShaderInfoMsgShown=true;}},{nodeChanged:function() +{var i,n=this._cf.parts.nodes.length;for(i=0;itwoPi) +this._vf.angle=twoPi;this._origCCW=this._vf.ccw;var innerRadius=this._vf.innerRadius;var outerRadius=this._vf.outerRadius;if(this._vf.insideOutsideRadius==true) +{if(innerRadius>outerRadius){var tmp=innerRadius;innerRadius=outerRadius;outerRadius=tmp;} +var rad=(outerRadius-innerRadius)/2;outerRadius=innerRadius+rad;innerRadius=rad;this._vf.ccw=!this._origCCW;} +var rings=this._vf.subdivision.x,sides=this._vf.subdivision.y;rings=Math.max(3,Math.round((this._vf.angle/twoPi)*rings));var geoCacheID='Torus_'+innerRadius+'_'+outerRadius+'_'+this._vf.angle+'_'+ +this._vf.subdivision+'-'+this._vf.caps;if(this._vf.useGeoCache&&x3dom.geoCache[geoCacheID]!==undefined) +{this._mesh=x3dom.geoCache[geoCacheID];} +else +{var ringDelta=this._vf.angle/rings;var sideDelta=twoPi/sides;var a,b,theta,phi;var cosTheta,sinTheta,cosPhi,sinPhi,dist;for(a=0,theta=0;a<=rings;a++,theta+=ringDelta) +{cosTheta=Math.cos(theta);sinTheta=Math.sin(theta);for(b=0,phi=0;b<=sides;b++,phi+=sideDelta) +{cosPhi=Math.cos(phi);sinPhi=Math.sin(phi);dist=outerRadius+innerRadius*cosPhi;if(this._vf.insideOutsideRadius){this._mesh._positions[0].push(cosTheta*dist,innerRadius*sinPhi,-sinTheta*dist);this._mesh._normals[0].push(cosTheta*cosPhi,sinPhi,-sinTheta*cosPhi);} +else{this._mesh._positions[0].push(cosTheta*dist,-sinTheta*dist,innerRadius*sinPhi);this._mesh._normals[0].push(cosTheta*cosPhi,-sinTheta*cosPhi,sinPhi);} +this._mesh._texCoords[0].push(-a/rings,b/sides);}} +for(a=0;a0){this._mesh._indices[0].push(origPos);this._mesh._indices[0].push(origPos+b);this._mesh._indices[0].push(origPos+b-1);} +if(b==sides){this._mesh._indices[0].push(origPos);this._mesh._indices[0].push(origPos+1);this._mesh._indices[0].push(origPos+b);}} +cosTheta=Math.cos(this._vf.angle);sinTheta=Math.sin(this._vf.angle);origPos=this._mesh._positions[0].length/3;var nx=-sinTheta,ny=-cosTheta;if(this._vf.insideOutsideRadius){this._mesh._positions[0].push(cosTheta*outerRadius,0,-sinTheta*outerRadius);this._mesh._normals[0].push(nx,0,ny);} +else{this._mesh._positions[0].push(cosTheta*outerRadius,-sinTheta*outerRadius,0);this._mesh._normals[0].push(nx,ny,0);} +this._mesh._texCoords[0].push(0.5,0.5);for(b=0,phi=0;b<=sides;b++,phi+=sideDelta) +{cosPhi=Math.cos(phi);sinPhi=Math.sin(phi);dist=outerRadius+innerRadius*cosPhi;if(this._vf.insideOutsideRadius){this._mesh._positions[0].push(cosTheta*dist,sinPhi*innerRadius,-sinTheta*dist);this._mesh._normals[0].push(nx,0,ny);} +else{this._mesh._positions[0].push(cosTheta*dist,-sinTheta*dist,sinPhi*innerRadius);this._mesh._normals[0].push(nx,ny,0);} +this._mesh._texCoords[0].push(1-(1+cosPhi)*0.5,(1-sinPhi)*0.5);if(b>0){this._mesh._indices[0].push(origPos);this._mesh._indices[0].push(origPos+b-1);this._mesh._indices[0].push(origPos+b);} +if(b==sides){this._mesh._indices[0].push(origPos);this._mesh._indices[0].push(origPos+b);this._mesh._indices[0].push(origPos+1);}}} +this._mesh._invalidate=true;this._mesh._numFaces=this._mesh._indices[0].length/3;this._mesh._numCoords=this._mesh._positions[0].length/3;x3dom.geoCache[geoCacheID]=this._mesh;}},{fieldChanged:function(fieldName) +{if(fieldName=="innerRadius"||fieldName=="outerRadius"||fieldName=="subdivision"||fieldName=="angle"||fieldName=="insideOutsideRadius"||fieldName=="caps") +{var twoPi=2.0*Math.PI;if(this._vf.angle<0) +this._vf.angle=0;else if(this._vf.angle>twoPi) +this._vf.angle=twoPi;var innerRadius=this._vf.innerRadius;var outerRadius=this._vf.outerRadius;if(this._vf.insideOutsideRadius==true) +{if(innerRadius>outerRadius){var tmp=innerRadius;innerRadius=outerRadius;outerRadius=tmp;} +var rad=(outerRadius-innerRadius)/2;outerRadius=innerRadius+rad;innerRadius=rad;this._vf.ccw=!this._origCCW;} +else +this._vf.ccw=this._origCCW;var rings=this._vf.subdivision.x,sides=this._vf.subdivision.y;rings=Math.max(3,Math.round((this._vf.angle/twoPi)*rings));var ringDelta=this._vf.angle/rings;var sideDelta=twoPi/sides;var a,b,theta,phi;var cosTheta,sinTheta,cosPhi,sinPhi,dist;this._mesh._positions[0]=[];this._mesh._normals[0]=[];this._mesh._texCoords[0]=[];this._mesh._indices[0]=[];for(a=0,theta=0;a<=rings;a++,theta+=ringDelta) +{cosTheta=Math.cos(theta);sinTheta=Math.sin(theta);for(b=0,phi=0;b<=sides;b++,phi+=sideDelta) +{cosPhi=Math.cos(phi);sinPhi=Math.sin(phi);dist=outerRadius+innerRadius*cosPhi;if(this._vf.insideOutsideRadius){this._mesh._positions[0].push(cosTheta*dist,innerRadius*sinPhi,-sinTheta*dist);this._mesh._normals[0].push(cosTheta*cosPhi,sinPhi,-sinTheta*cosPhi);} +else{this._mesh._positions[0].push(cosTheta*dist,-sinTheta*dist,innerRadius*sinPhi);this._mesh._normals[0].push(cosTheta*cosPhi,-sinTheta*cosPhi,sinPhi);} +this._mesh._texCoords[0].push(-a/rings,b/sides);}} +for(a=0;a0){this._mesh._indices[0].push(origPos);this._mesh._indices[0].push(origPos+b);this._mesh._indices[0].push(origPos+b-1);} +if(b==sides){this._mesh._indices[0].push(origPos);this._mesh._indices[0].push(origPos+1);this._mesh._indices[0].push(origPos+b);}} +cosTheta=Math.cos(this._vf.angle);sinTheta=Math.sin(this._vf.angle);origPos=this._mesh._positions[0].length/3;var nx=-sinTheta,ny=-cosTheta;if(this._vf.insideOutsideRadius){this._mesh._positions[0].push(cosTheta*outerRadius,0,-sinTheta*outerRadius);this._mesh._normals[0].push(nx,0,ny);} +else{this._mesh._positions[0].push(cosTheta*outerRadius,-sinTheta*outerRadius,0);this._mesh._normals[0].push(nx,ny,0);} +this._mesh._texCoords[0].push(0.5,0.5);for(b=0,phi=0;b<=sides;b++,phi+=sideDelta) +{cosPhi=Math.cos(phi);sinPhi=Math.sin(phi);dist=outerRadius+innerRadius*cosPhi;if(this._vf.insideOutsideRadius){this._mesh._positions[0].push(cosTheta*dist,sinPhi*innerRadius,-sinTheta*dist);this._mesh._normals[0].push(nx,0,ny);} +else{this._mesh._positions[0].push(cosTheta*dist,-sinTheta*dist,sinPhi*innerRadius);this._mesh._normals[0].push(nx,ny,0);} +this._mesh._texCoords[0].push(1-(1+cosPhi)*0.5,(1-sinPhi)*0.5);if(b>0){this._mesh._indices[0].push(origPos);this._mesh._indices[0].push(origPos+b-1);this._mesh._indices[0].push(origPos+b);} +if(b==sides){this._mesh._indices[0].push(origPos);this._mesh._indices[0].push(origPos+b);this._mesh._indices[0].push(origPos+1);}}} +this.invalidateVolume();this._mesh._numFaces=this._mesh._indices[0].length/3;this._mesh._numCoords=this._mesh._positions[0].length/3;Array.forEach(this._parentNodes,function(node){node.setAllDirty();node.invalidateVolume();});}}}));x3dom.registerNodeType("Cone","Geometry3D",defineClass(x3dom.nodeTypes.X3DSpatialGeometryNode,function(ctx){x3dom.nodeTypes.Cone.superClass.call(this,ctx);this.addField_SFFloat(ctx,'bottomRadius',1.0);this.addField_SFFloat(ctx,'topRadius',0);this.addField_SFFloat(ctx,'height',2.0);this.addField_SFBool(ctx,'bottom',true);this.addField_SFBool(ctx,'side',true);this.addField_SFBool(ctx,'top',true);this.addField_SFFloat(ctx,'subdivision',32);var geoCacheID='Cone_'+this._vf.bottomRadius+'_'+this._vf.height+'_'+this._vf.top+'_'+ +this._vf.bottom+'_'+this._vf.side+'_'+this._vf.topRadius+'_'+this._vf.subdivision;if(this._vf.useGeoCache&&x3dom.geoCache[geoCacheID]!==undefined){this._mesh=x3dom.geoCache[geoCacheID];} +else{var bottomRadius=this._vf.bottomRadius,height=this._vf.height;var topRadius=this._vf.topRadius,sides=this._vf.subdivision;var beta,x,z;var delta=2.0*Math.PI/sides;var incl=(bottomRadius-topRadius)/height;var nlen=1.0/Math.sqrt(1.0+incl*incl);var j=0,k=0;var h,base;if(this._vf.side&&height>0){var px=0,pz=0;for(j=0,k=0;j<=sides;j++){beta=j*delta;x=Math.sin(beta);z=-Math.cos(beta);if(topRadius>x3dom.fields.Eps){px=x*topRadius;pz=z*topRadius;} +this._mesh._positions[0].push(px,height/2,pz);this._mesh._normals[0].push(x/nlen,incl/nlen,z/nlen);this._mesh._texCoords[0].push(1.0-j/sides,1);this._mesh._positions[0].push(x*bottomRadius,-height/2,z*bottomRadius);this._mesh._normals[0].push(x/nlen,incl/nlen,z/nlen);this._mesh._texCoords[0].push(1.0-j/sides,0);if(j>0){this._mesh._indices[0].push(k);this._mesh._indices[0].push(k+2);this._mesh._indices[0].push(k+1);this._mesh._indices[0].push(k+1);this._mesh._indices[0].push(k+2);this._mesh._indices[0].push(k+3);k+=2;}}} +if(this._vf.bottom&&bottomRadius>0){base=this._mesh._positions[0].length/3;for(j=sides-1;j>=0;j--){beta=j*delta;x=bottomRadius*Math.sin(beta);z=-bottomRadius*Math.cos(beta);this._mesh._positions[0].push(x,-height/2,z);this._mesh._normals[0].push(0,-1,0);this._mesh._texCoords[0].push(x/bottomRadius/2+0.5,z/bottomRadius/2+0.5);} +h=base+1;for(j=2;jx3dom.fields.Eps){base=this._mesh._positions[0].length/3;for(j=sides-1;j>=0;j--){beta=j*delta;x=topRadius*Math.sin(beta);z=-topRadius*Math.cos(beta);this._mesh._positions[0].push(x,height/2,z);this._mesh._normals[0].push(0,1,0);this._mesh._texCoords[0].push(x/topRadius/2+0.5,1.0-z/topRadius/2+0.5);} +h=base+1;for(j=2;j0) +{var px=0,pz=0;for(j=0,k=0;j<=sides;j++){beta=j*delta;x=Math.sin(beta);z=-Math.cos(beta);if(topRadius>x3dom.fields.Eps){px=x*topRadius;pz=z*topRadius;} +this._mesh._positions[0].push(px,height/2,pz);this._mesh._normals[0].push(x/nlen,incl/nlen,z/nlen);this._mesh._texCoords[0].push(1.0-j/sides,1);this._mesh._positions[0].push(x*bottomRadius,-height/2,z*bottomRadius);this._mesh._normals[0].push(x/nlen,incl/nlen,z/nlen);this._mesh._texCoords[0].push(1.0-j/sides,0);if(j>0){this._mesh._indices[0].push(k);this._mesh._indices[0].push(k+2);this._mesh._indices[0].push(k+1);this._mesh._indices[0].push(k+1);this._mesh._indices[0].push(k+2);this._mesh._indices[0].push(k+3);k+=2;}}} +if(this._vf.bottom&&bottomRadius>0) +{base=this._mesh._positions[0].length/3;for(j=sides-1;j>=0;j--){beta=j*delta;x=bottomRadius*Math.sin(beta);z=-bottomRadius*Math.cos(beta);this._mesh._positions[0].push(x,-height/2,z);this._mesh._normals[0].push(0,-1,0);this._mesh._texCoords[0].push(x/bottomRadius/2+0.5,z/bottomRadius/2+0.5);} +h=base+1;for(j=2;jx3dom.fields.Eps) +{base=this._mesh._positions[0].length/3;for(j=sides-1;j>=0;j--){beta=j*delta;x=topRadius*Math.sin(beta);z=-topRadius*Math.cos(beta);this._mesh._positions[0].push(x,height/2,z);this._mesh._normals[0].push(0,1,0);this._mesh._texCoords[0].push(x/topRadius/2+0.5,1.0-z/topRadius/2+0.5);} +h=base+1;for(j=2;j0) +{this._mesh._indices[0].push(k);this._mesh._indices[0].push(k+1);this._mesh._indices[0].push(k+2);this._mesh._indices[0].push(k+2);this._mesh._indices[0].push(k+1);this._mesh._indices[0].push(k+3);k+=2;}}} +if(radius>0) +{var h,base=this._mesh._positions[0].length/3;if(this._vf.top) +{for(j=sides-1;j>=0;j--) +{beta=j*delta;x=radius*Math.sin(beta);z=-radius*Math.cos(beta);this._mesh._positions[0].push(x,height,z);this._mesh._normals[0].push(0,1,0);this._mesh._texCoords[0].push(x/radius/2+0.5,-z/radius/2+0.5);} +h=base+1;for(j=2;j=0;j--) +{beta=j*delta;x=radius*Math.sin(beta);z=-radius*Math.cos(beta);this._mesh._positions[0].push(x,-height,z);this._mesh._normals[0].push(0,-1,0);this._mesh._texCoords[0].push(x/radius/2+0.5,z/radius/2+0.5);} +h=base+1;for(j=2;j0) +{var h,base=this._mesh._positions[0].length/3;if(this._vf.top) +{for(j=sides-1;j>=0;j--) +{beta=j*delta;x=radius*Math.sin(beta);z=-radius*Math.cos(beta);this._mesh._positions[0].push(x,height,z);}}} +if(this._vf.bottom) +{for(j=sides-1;j>=0;j--) +{beta=j*delta;x=radius*Math.sin(beta);z=-radius*Math.cos(beta);this._mesh._positions[0].push(x,-height,z);}} +this.invalidateVolume();this._mesh._numCoords=this._mesh._positions[0].length/3;Array.forEach(this._parentNodes,function(node){node._dirty.positions=true;node.invalidateVolume();});} +else if(fieldName==="subdivision"||fieldName==="bottom"||fieldName==="top"||fieldName==="side") +{this._mesh._positions[0]=[];this._mesh._indices[0]=[];this._mesh._normals[0]=[];this._mesh._texCoords[0]=[];var radius=this._vf.radius,height=this._vf.height/2;var sides=this._vf.subdivision;var beta,x,z,j;var delta=2.0*Math.PI/sides;var k=0;if(this._vf.side) +{for(j=0,k=0;j<=sides;j++) +{beta=j*delta;x=Math.sin(beta);z=-Math.cos(beta);this._mesh._positions[0].push(x*radius,-height,z*radius);this._mesh._normals[0].push(x,0,z);this._mesh._texCoords[0].push(1.0-j/sides,0);this._mesh._positions[0].push(x*radius,height,z*radius);this._mesh._normals[0].push(x,0,z);this._mesh._texCoords[0].push(1.0-j/sides,1);if(j>0) +{this._mesh._indices[0].push(k+0);this._mesh._indices[0].push(k+1);this._mesh._indices[0].push(k+2);this._mesh._indices[0].push(k+2);this._mesh._indices[0].push(k+1);this._mesh._indices[0].push(k+3);k+=2;}}} +if(radius>0) +{var h,base=this._mesh._positions[0].length/3;if(this._vf.top) +{for(j=sides-1;j>=0;j--) +{beta=j*delta;x=radius*Math.sin(beta);z=-radius*Math.cos(beta);this._mesh._positions[0].push(x,height,z);this._mesh._normals[0].push(0,1,0);this._mesh._texCoords[0].push(x/radius/2+0.5,-z/radius/2+0.5);} +h=base+1;for(j=2;j=0;j--) +{beta=j*delta;x=radius*Math.sin(beta);z=-radius*Math.cos(beta);this._mesh._positions[0].push(x,-height,z);this._mesh._normals[0].push(0,-1,0);this._mesh._texCoords[0].push(x/radius/2+0.5,z/radius/2+0.5);} +h=base+1;for(j=2;j=3){srcHeaderSize=responseBeginUint32[2];srcBodyOffset=srcHeaderSize+12;srcBodySize=xhr.response.byteLength-srcBodyOffset;if(srcHeaderSize>0&&srcBodySize>=0) +{srcHeaderView=new Uint8Array(xhr.response,12,srcHeaderSize);srcBodyView=new Uint8Array(xhr.response,srcBodyOffset,srcBodySize);try +{srcHeaderObj=JSON.parse(String.fromCharCode.apply(null,srcHeaderView));} +catch(exc) +{x3dom.debug.logError("Unable to parse SRC header: "+exc);return;} +that._updateRenderDataFromSRC(shape,shaderProgram,gl,srcHeaderObj,srcBodyView);} +else +{x3dom.debug.logError("Invalid SRC data, loaded from URL \""+ +that._vf['url']+"\"");return;}} +else +{x3dom.debug.logError("Unable to load SRC data from URL \""+that._vf['url']+"\"");}};},_updateRenderDataFromSRC:function(shape,shaderProgram,gl,srcHeaderObj,srcBodyView) +{var INDEX_BUFFER_IDX=0;var POSITION_BUFFER_IDX=1;var NORMAL_BUFFER_IDX=2;var TEXCOORD_BUFFER_IDX=3;var COLOR_BUFFER_IDX=4;var ID_BUFFER_IDX=5;var MAX_NUM_BUFFERS_PER_DRAW=6;var indexViews=srcHeaderObj["accessors"]["indexViews"];var indexViewID,indexView;var attributeViews=srcHeaderObj["accessors"]["attributeViews"];var attributes;var attributeID,attributeView;var x3domTypeID,x3domShortTypeID,numComponents;var meshes=srcHeaderObj["meshes"];var mesh,meshID;var meshIdx,bufferOffset;var viewIDsToGLBufferIDs={};var indexViewBufferIDs={};for(indexViewID in indexViews) +{indexView=indexViews[indexViewID];indexViewBufferIDs[indexView["bufferView"]]=true;} +this._createGLBuffersFromSRCChunks(gl,srcHeaderObj["bufferChunks"],srcHeaderObj["bufferViews"],srcBodyView,indexViewBufferIDs,viewIDsToGLBufferIDs);for(indexViewID in indexViews) +{indexView=indexViews[indexViewID];if(indexView["componentType"]!=gl.UNSIGNED_SHORT) +{x3dom.debug.logWarning("SRC index componentType "+indexView["componentType"]+" is not UNSIGNED_SHORT. "+"Ignoring given value and assuming UNSIGNED_SHORT indices.");} +shape._webgl.indexType=gl.UNSIGNED_SHORT;} +meshIdx=0;bufferOffset=0;shape._webgl.primType=[];shape._webgl.indexOffset=[];shape._webgl.drawCount=[];this._mesh._numCoords=0;this._mesh._numFaces=0;for(meshID in meshes) +{mesh=meshes[meshID];indexViewID=mesh["indices"];if(indexViewID!="") +{shape._webgl.externalGeometry=1;indexView=indexViews[indexViewID];shape._webgl.indexOffset[meshIdx]=indexView["byteOffset"];shape._webgl.drawCount[meshIdx]=indexView["count"];shape._webgl.buffers[INDEX_BUFFER_IDX+bufferOffset]=viewIDsToGLBufferIDs[indexView["bufferView"]];this._mesh._numFaces+=indexView["count"]/3;} +else +{shape._webgl.externalGeometry=-1;} +shape._webgl.primType[meshIdx]=mesh["primitive"];attributes=mesh["attributes"];for(attributeID in attributes) +{attributeView=attributeViews[attributes[attributeID]];switch(attributeID) +{case"position":x3domTypeID="coord";x3domShortTypeID="Pos";shape._webgl.buffers[POSITION_BUFFER_IDX+bufferOffset]=viewIDsToGLBufferIDs[attributeView["bufferView"]];if(mesh["indices"]=="") +{shape._webgl.drawCount[meshIdx]=attributeView["count"];this._mesh._numFaces+=attributeView["count"]/3;} +this._mesh._numCoords+=attributeView["count"];break;case"normal":x3domTypeID="normal";x3domShortTypeID="Norm";shape._webgl.buffers[NORMAL_BUFFER_IDX+bufferOffset]=viewIDsToGLBufferIDs[attributeView["bufferView"]];break;case"texcoord":x3domTypeID="texCoord";x3domShortTypeID="Tex";shape._webgl.buffers[TEXCOORD_BUFFER_IDX+bufferOffset]=viewIDsToGLBufferIDs[attributeView["bufferView"]];break;case"color":x3domTypeID="color";x3domShortTypeID="Col";shape._webgl.buffers[COLOR_BUFFER_IDX+bufferOffset]=viewIDsToGLBufferIDs[attributeView["bufferView"]];break;case"id":x3domTypeID="id";x3domShortTypeID="Id";shape._webgl.buffers[ID_BUFFER_IDX+bufferOffset]=viewIDsToGLBufferIDs[attributeView["bufferView"]];break;} +shape["_"+x3domTypeID+"StrideOffset"][0]=attributeView["byteStride"];shape["_"+x3domTypeID+"StrideOffset"][1]=attributeView["byteOffset"];shape._webgl[x3domTypeID+"Type"]=attributeView["componentType"];numComponents=x3dom.nodeTypes.ExternalGeometry._findNumComponentsForSRCAccessorType(attributeView["type"]);this._mesh["_num"+x3domShortTypeID+"Components"]=numComponents;} +++meshIdx;bufferOffset+=MAX_NUM_BUFFERS_PER_DRAW;} +shape._nameSpace.doc.needRender=true;x3dom.BinaryContainerLoader.checkError(gl);},_createGLBuffersFromSRCChunks:function(gl,bufferChunksObj,bufferViewsObj,srcBodyView,indexViewBufferIDs,viewIDsToGLBufferIDs) +{var i;var bufferView;var chunkIDList;var bufferType;var chunk;var newBuffer;var chunkDataView;var currentChunkDataOffset;for(var bufferViewID in bufferViewsObj) +{bufferType=(typeof indexViewBufferIDs[bufferViewID]!=='undefined')?gl.ELEMENT_ARRAY_BUFFER:gl.ARRAY_BUFFER;bufferView=bufferViewsObj[bufferViewID];chunkIDList=bufferView["chunks"];if(chunkIDList.length==1) +{chunk=bufferChunksObj[chunkIDList[0]];chunkDataView=new Uint8Array(srcBodyView.buffer,srcBodyView.byteOffset+chunk["byteOffset"],chunk["byteLength"]);newBuffer=gl.createBuffer();gl.bindBuffer(bufferType,newBuffer);gl.bufferData(bufferType,chunkDataView,gl.STATIC_DRAW);viewIDsToGLBufferIDs[bufferViewID]=newBuffer;} +else +{newBuffer=gl.createBuffer();gl.bindBuffer(bufferType,newBuffer);gl.bufferData(bufferType,bufferView["byteLength"],gl.STATIC_DRAW);currentChunkDataOffset=0;for(i=0;i=0);return(this._vf.lit&&hasTris);}}));x3dom.registerNodeType("BinaryGeometry","Geometry3D",defineClass(x3dom.nodeTypes.X3DBinaryContainerGeometryNode,function(ctx){x3dom.nodeTypes.BinaryGeometry.superClass.call(this,ctx);this.addField_SFString(ctx,'index',"");this.addField_SFString(ctx,'coord',"");this.addField_SFString(ctx,'normal',"");this.addField_SFString(ctx,'texCoord',"");this.addField_SFString(ctx,'color',"");this.addField_SFString(ctx,'tangent',"");this.addField_SFString(ctx,'binormal',"");this.addField_SFString(ctx,'indexType',"Uint16");this.addField_SFString(ctx,'coordType',"Float32");this.addField_SFString(ctx,'normalType',"Float32");this.addField_SFString(ctx,'texCoordType',"Float32");this.addField_SFString(ctx,'colorType',"Float32");this.addField_SFString(ctx,'tangentType',"Float32");this.addField_SFString(ctx,'binormalType',"Float32");this.addField_SFBool(ctx,'normalAsSphericalCoordinates',false);this.addField_SFBool(ctx,'rgbaColors',false);this.addField_SFInt32(ctx,'numTexCoordComponents',2);this.addField_SFBool(ctx,'normalPerVertex',true);this.addField_SFBool(ctx,'idsPerVertex',false);this.addField_SFBool(ctx,'compressed',false);this._hasStrideOffset=false;this._mesh._numPosComponents=this._vf.normalAsSphericalCoordinates?4:3;this._mesh._numTexComponents=this._vf.numTexCoordComponents;this._mesh._numColComponents=this._vf.rgbaColors?4:3;this._mesh._numNormComponents=this._vf.normalAsSphericalCoordinates?2:3;this._vertexCountSum=0;for(var i=0;i=0&&strideInd>=0){offset=+this._vf.coord.substring(++offsetInd,strideInd);stride=+this._vf.coord.substring(strideInd);parent._coordStrideOffset=[stride,offset];this._hasStrideOffset=true;if((offset/8)-Math.floor(offset/8)==0){this._mesh._numPosComponents=4;}} +else if(strideInd>=0){stride=+this._vf.coord.substring(strideInd);parent._coordStrideOffset=[stride,0];if((stride/8)-Math.floor(stride/8)==0){this._mesh._numPosComponents=4;}} +offsetInd=this._vf.normal.lastIndexOf('#');strideInd=this._vf.normal.lastIndexOf('+');if(offsetInd>=0&&strideInd>=0){offset=+this._vf.normal.substring(++offsetInd,strideInd);stride=+this._vf.normal.substring(strideInd);parent._normalStrideOffset=[stride,offset];} +else if(strideInd>=0){stride=+this._vf.normal.substring(strideInd);parent._normalStrideOffset=[stride,0];} +offsetInd=this._vf.texCoord.lastIndexOf('#');strideInd=this._vf.texCoord.lastIndexOf('+');if(offsetInd>=0&&strideInd>=0){offset=+this._vf.texCoord.substring(++offsetInd,strideInd);stride=+this._vf.texCoord.substring(strideInd);parent._texCoordStrideOffset=[stride,offset];} +else if(strideInd>=0){stride=+this._vf.texCoord.substring(strideInd);parent._texCoordStrideOffset=[stride,0];} +offsetInd=this._vf.color.lastIndexOf('#');strideInd=this._vf.color.lastIndexOf('+');if(offsetInd>=0&&strideInd>=0){offset=+this._vf.color.substring(++offsetInd,strideInd);stride=+this._vf.color.substring(strideInd);parent._colorStrideOffset=[stride,offset];} +else if(strideInd>=0){stride=+this._vf.color.substring(strideInd);parent._colorStrideOffset=[stride,0];} +if(this._vf.indexType!="Uint16"&&!x3dom.caps.INDEX_UINT) +x3dom.debug.logWarning("Index type "+this._vf.indexType+" problematic");},doIntersect:function(line) +{var min=this.getMin();var max=this.getMax();var isect=line.intersect(min,max);if(isect&&line.enterthis._vf.bbMaxModF.x) +this._vf.bbShiftVec.x=1.0;if(this._vf.bbMinModF.y>this._vf.bbMaxModF.y) +this._vf.bbShiftVec.y=1.0;if(this._vf.bbMinModF.z>this._vf.bbMaxModF.z) +this._vf.bbShiftVec.z=1.0;this.addField_MFNode('levels',x3dom.nodeTypes.PopGeometryLevel);this.addField_SFInt32(ctx,'attributeStride',0);this.addField_SFInt32(ctx,'positionOffset',0);this.addField_SFInt32(ctx,'normalOffset',0);this.addField_SFInt32(ctx,'texcoordOffset',0);this.addField_SFInt32(ctx,'colorOffset',0);this.addField_SFInt32(ctx,'numAnchorVertices',0);this.addField_SFInt32(ctx,'positionPrecision',2);this.addField_SFInt32(ctx,'normalPrecision',1);this.addField_SFInt32(ctx,'texcoordPrecision',2);this.addField_SFInt32(ctx,'colorPrecision',1);this.addField_SFInt32(ctx,'minPrecisionLevel',-1);this.addField_SFInt32(ctx,'maxPrecisionLevel',-1);this.addField_SFFloat(ctx,'precisionFactor',1.0);this.addField_SFString(ctx,'coordType',"Uint16");this.addField_SFString(ctx,'normalType',"Uint8");this.addField_SFString(ctx,'texCoordType',"Uint16");this.addField_SFString(ctx,'colorType',"Uint8");this.addField_SFInt32(ctx,'vertexBufferSize',0);this.addField_SFBool(ctx,'indexedRendering',true);this.addField_SFBool(ctx,'sphericalNormals',false);this.addField_MFInt32(ctx,'originalVertexCount',[0]);for(var i=0;i0){var geoCacheID='ImageGeometry_'+this._vf.implicitMeshSize.x+'_'+this._vf.implicitMeshSize.y;if(this._vf.useGeoCache&&x3dom.geoCache[geoCacheID]!==undefined) +{this._mesh=x3dom.geoCache[geoCacheID];} +else +{for(var y=0;y0) +{hasNormalInd=true;} +if(texCoordInd.length>0) +{hasTexCoordInd=true;} +if(colorInd.length>0) +{hasColorInd=true;} +var positions,normals,texCoords,colors;var coordNode=this._cf.coord.node;x3dom.debug.assert(coordNode);positions=coordNode.getPoints();var normalNode=this._cf.normal.node;if(normalNode) +{hasNormal=true;normals=normalNode._vf.vector;} +else{hasNormal=false;} +var texMode="",numTexComponents=2;var texCoordNode=this._cf.texCoord.node;if(x3dom.isa(texCoordNode,x3dom.nodeTypes.MultiTextureCoordinate)){if(texCoordNode._cf.texCoord.nodes.length) +texCoordNode=texCoordNode._cf.texCoord.nodes[0];} +if(texCoordNode) +{if(texCoordNode._vf.point){hasTexCoord=true;texCoords=texCoordNode._vf.point;if(x3dom.isa(texCoordNode,x3dom.nodeTypes.TextureCoordinate3D)){numTexComponents=3;}} +else if(texCoordNode._vf.mode){texMode=texCoordNode._vf.mode;}} +else{hasTexCoord=false;} +this._mesh._numTexComponents=numTexComponents;var numColComponents=3;var colorNode=this._cf.color.node;if(colorNode) +{hasColor=true;colors=colorNode._vf.color;if(x3dom.isa(colorNode,x3dom.nodeTypes.ColorRGBA)){numColComponents=4;}} +else{hasColor=false;} +this._mesh._numColComponents=numColComponents;this._mesh._indices[0]=[];this._mesh._positions[0]=[];this._mesh._normals[0]=[];this._mesh._texCoords[0]=[];this._mesh._colors[0]=[];var i,j,t,cnt,faceCnt;var p0,p1,p2,n0,n1,n2,t0,t1,t2,c0,c1,c2;if((this._vf.creaseAngle<=x3dom.fields.Eps)||(positions.length>x3dom.Utils.maxIndexableCoords)||(hasNormal&&hasNormalInd)||(hasTexCoord&&hasTexCoordInd)||(hasColor&&hasColorInd)) +{if(this._vf.creaseAngle<=x3dom.fields.Eps) +x3dom.debug.logWarning('Fallback to inefficient multi-index mode since creaseAngle=0.');if(this._vf.convex){t=0;cnt=0;faceCnt=0;this._mesh._multiIndIndices=[];this._mesh._posSize=positions.length;for(i=0;i0) +this._mesh._numFaces+=indexLength/3;else +this._mesh._numFaces+=numCoords/3;}},fieldChanged:function(fieldName) +{if(fieldName!="coord"&&fieldName!="normal"&&fieldName!="texCoord"&&fieldName!="color"&&fieldName!="coordIndex") +{x3dom.debug.logWarning("IndexedFaceSet: fieldChanged for "+ +fieldName+" not yet implemented!");return;} +var pnts=this._cf.coord.node._vf.point;var n=pnts.length;var texCoordNode=this._cf.texCoord.node;if(x3dom.isa(texCoordNode,x3dom.nodeTypes.MultiTextureCoordinate)){if(texCoordNode._cf.texCoord.nodes.length) +texCoordNode=texCoordNode._cf.texCoord.nodes[0];} +if(((this._vf.creaseAngle<=x3dom.fields.Eps)||(n>x3dom.Utils.maxIndexableCoords)||(this._vf.normalIndex.length>0&&this._cf.normal.node)||(this._vf.texCoordIndex.length>0&&texCoordNode)||(this._vf.colorIndex.length>0&&this._cf.color.node))&&this._mesh._multiIndIndices) +{var needNormals=!this._cf.normal.node&&this._vf.normalUpdateMode.toLowerCase()!='none';n=this._mesh._multiIndIndices.length;this._mesh._positions[0]=[];this._mesh._indices[0]=[];if(fieldName=="coord"&&n) +{if(needNormals){this._mesh._normals[0]=[];} +for(i=0;i0) +{hasNormalInd=true;} +if(texCoordInd.length>0) +{hasTexCoordInd=true;} +if(colorInd.length>0) +{hasColorInd=true;} +var positions,normals,texCoords,colors;var coordNode=this._cf.coord.node;x3dom.debug.assert(coordNode);positions=coordNode.getPoints();var normalNode=this._cf.normal.node;if(normalNode) +{hasNormal=true;normals=normalNode._vf.vector;} +else{hasNormal=false;} +var texMode="",numTexComponents=2;texCoordNode=this._cf.texCoord.node;if(x3dom.isa(texCoordNode,x3dom.nodeTypes.MultiTextureCoordinate)){if(texCoordNode._cf.texCoord.nodes.length) +texCoordNode=texCoordNode._cf.texCoord.nodes[0];} +if(texCoordNode) +{if(texCoordNode._vf.point){hasTexCoord=true;texCoords=texCoordNode._vf.point;if(x3dom.isa(texCoordNode,x3dom.nodeTypes.TextureCoordinate3D)){numTexComponents=3;}} +else if(texCoordNode._vf.mode){texMode=texCoordNode._vf.mode;}} +else{hasTexCoord=false;} +this._mesh._numTexComponents=numTexComponents;var numColComponents=3;var colorNode=this._cf.color.node;if(colorNode) +{hasColor=true;colors=colorNode._vf.color;if(x3dom.isa(colorNode,x3dom.nodeTypes.ColorRGBA)){numColComponents=4;}} +else{hasColor=false;} +this._mesh._numColComponents=numColComponents;var i,j,t,cnt,faceCnt;var p0,p1,p2,n0,n1,n2,t0,t1,t2,c0,c1,c2;if(this._vf.convex){t=0;cnt=0;faceCnt=0;this._mesh._multiIndIndices=[];this._mesh._posSize=positions.length;for(i=0;i0) +this._mesh._numFaces+=indexLength/3;else +this._mesh._numFaces+=numCoords/3;} +Array.forEach(this._parentNodes,function(node){node.setGeoDirty();});} +else{if(fieldName=="coord") +{var needNormals=!this._cf.normal.node&&this._vf.normalUpdateMode.toLowerCase()!='none';this._mesh._positions[0]=pnts.toGL();if(needNormals){this._mesh.calcNormals(this._vf.creaseAngle,this._vf.ccw);} +this.invalidateVolume();Array.forEach(this._parentNodes,function(node){node._dirty.positions=true;if(needNormals) +node._dirty.normals=true;node.invalidateVolume();});} +else if(fieldName=="color") +{pnts=this._cf.color.node._vf.color;this._mesh._colors[0]=pnts.toGL();Array.forEach(this._parentNodes,function(node){node._dirty.colors=true;});} +else if(fieldName=="normal") +{pnts=this._cf.normal.node._vf.vector;this._mesh._normals[0]=pnts.toGL();Array.forEach(this._parentNodes,function(node){node._dirty.normals=true;});} +else if(fieldName=="texCoord") +{texCoordNode=this._cf.texCoord.node;if(x3dom.isa(texCoordNode,x3dom.nodeTypes.MultiTextureCoordinate)){if(texCoordNode._cf.texCoord.nodes.length) +texCoordNode=texCoordNode._cf.texCoord.nodes[0];} +pnts=texCoordNode._vf.point;this._mesh._texCoords[0]=pnts.toGL();Array.forEach(this._parentNodes,function(node){node._dirty.texcoords=true;});} +else if(fieldName=="coordIndex") +{needNormals=!this._cf.normal.node&&this._vf.normalUpdateMode.toLowerCase()!='none';indexes=this._vf.coordIndex;t=0;n=indexes.length;this._mesh._indices[0]=[];for(i=0;i=0.0){alpha_1=(-B+Math.sqrt(determinant))/(2.0*A);alpha_2=(-B-Math.sqrt(determinant))/(2.0*A);alpha_1=Math.min(alpha_1,alpha_2);if(alpha_1>=1.0){var hitPoint=viewRay.pos.add(viewRay.dir.multiply(alpha_1));var vecToHitPoint=hitPoint.subtract(this._localOrigin).normalize();this._currentRotation=x3dom.fields.Quaternion.rotateFromTo(this._initialSphereIntersectionVector,vecToHitPoint);this._currentRotation=this._currentRotation.multiply(this._vf.offset);this.postMessage('rotation_changed',this._currentRotation);}} +else{}},_stopDragging:function() +{x3dom.nodeTypes.X3DDragSensorNode.prototype._stopDragging.call(this);if(this._vf.autoOffset) +{this._vf.offset=this._currentRotation;this.postMessage('offset_changed',this._vf.offset);} +this._currentRotation=new x3dom.fields.Quaternion();}}));x3dom.registerNodeType("CylinderSensor","PointingDeviceSensor",defineClass(x3dom.nodeTypes.X3DDragSensorNode,function(ctx) +{x3dom.nodeTypes.CylinderSensor.superClass.call(this,ctx);this.addField_SFFloat(ctx,'offset',0);this.addField_SFRotation(ctx,'axisRotation',0,1,0,0);this.addField_SFFloat(ctx,'diskAngle',0.262);this.addField_SFFloat(ctx,'minAngle',0);this.addField_SFFloat(ctx,'maxAngle',-1);this._rotationMatrix=this._vf.axisRotation.toMatrix();this._inverseToWorldMatrix=null;this._initialCylinderIntersectionVector=null;this._viewArea=null;this._cylinderRadius=0.0;this._yAxisLine=null;this._cylinderMode=true;this._currentRotationAngle=0.0;},{getCurrentTransform:function() +{var parentTransform=x3dom.nodeTypes.X3DDragSensorNode.prototype.getCurrentTransform.call(this);return parentTransform.mult(this._rotationMatrix);},_startDragging:function(viewarea,x,y,wx,wy,wz) +{x3dom.nodeTypes.X3DDragSensorNode.prototype._startDragging.call(this,viewarea,x,y,wx,wy,wz);this._currentRotation=new x3dom.fields.Quaternion();this._viewArea=viewarea;this._yAxisLine=new x3dom.fields.Line(new x3dom.fields.SFVec3f(0.0,0.0,0.0),new x3dom.fields.SFVec3f(0.0,1.0,0.0));this._inverseToWorldMatrix=this.getCurrentTransform().inverse();var firstIntersection=this._inverseToWorldMatrix.multMatrixPnt(new x3dom.fields.SFVec3f(wx,wy,wz));var closestPointOnYAxis=this._yAxisLine.closestPoint(firstIntersection);this._initialCylinderIntersectionVector=firstIntersection.subtract(closestPointOnYAxis);this._cylinderRadius=this._initialCylinderIntersectionVector.length();this._initialCylinderIntersectionVector=this._initialCylinderIntersectionVector.normalize();},_process2DDrag:function(x,y,dx,dy) +{x3dom.nodeTypes.X3DDragSensorNode.prototype._process2DDrag.call(this,x,y,dx,dy);if(this._cylinderMode) +{var viewRay=this._viewArea.calcViewRay(x,y);viewRay.pos=this._inverseToWorldMatrix.multMatrixPnt(viewRay.pos);viewRay.dir=this._inverseToWorldMatrix.multMatrixVec(viewRay.dir);var A=viewRay.dir.subtract(this._yAxisLine.dir.multiply(viewRay.dir.dot(this._yAxisLine.dir)));var B=viewRay.pos.subtract(this._yAxisLine.pos).add(this._yAxisLine.dir.multiply(this._yAxisLine.dir.dot(this._yAxisLine.pos.subtract(viewRay.pos))));var p=2*A.dot(B)/A.dot(A);var q=(B.dot(B)-this._cylinderRadius*this._cylinderRadius)/A.dot(A);var sqrt_part=p*p*0.25-q;var alpha_1;var alpha_2;if(sqrt_part>=0) +{sqrt_part=Math.sqrt(sqrt_part);alpha_1=-p*0.5+sqrt_part;alpha_2=-p*0.5-sqrt_part;alpha_1=Math.min(alpha_1,alpha_2);if(alpha_1>0.0) +{var hitPoint=viewRay.pos.add(viewRay.dir.multiply(alpha_1));var closestPointOnYAxis=this._yAxisLine.closestPoint(hitPoint);var vecToHitPoint=hitPoint.subtract(closestPointOnYAxis).normalize();this._currentRotation=x3dom.fields.Quaternion.rotateFromTo(this._initialCylinderIntersectionVector,vecToHitPoint);var offsetQuat=x3dom.fields.Quaternion.axisAngle(this._yAxisLine.dir,this._vf.offset);this._currentRotation=this._currentRotation.multiply(offsetQuat);this.postMessage('rotation_changed',this._currentRotation);}}} +else +{}},_stopDragging:function() +{x3dom.nodeTypes.X3DDragSensorNode.prototype._stopDragging.call(this);if(this._vf.autoOffset) +{this._vf.offset=this._currentRotation.angle();this.postMessage('offset_changed',this._vf.offset);}}}));x3dom.versionInfo={version:'1.6.3-dev',revision:'',date:''}; \ No newline at end of file diff --git a/plot/x3dom.js.h b/plot/x3dom.js.h new file mode 100644 index 0000000..11ea311 --- /dev/null +++ b/plot/x3dom.js.h @@ -0,0 +1,77243 @@ + 0x2f, 0x2a, 0x2a, 0x20, 0x58, 0x33, 0x44, 0x4f, 0x4d, 0x20, 0x52, 0x75, + 0x6e, 0x74, 0x69, 0x6d, 0x65, 0x2c, 0x20, 0x68, 0x74, 0x74, 0x70, 0x3a, + 0x2f, 0x2f, 0x77, 0x77, 0x77, 0x2e, 0x78, 0x33, 0x64, 0x6f, 0x6d, 0x2e, + 0x6f, 0x72, 0x67, 0x2f, 0x20, 0x31, 0x2e, 0x36, 0x2e, 0x33, 0x2d, 0x64, + 0x65, 0x76, 0x20, 0x2d, 0x20, 0x20, 0x2d, 0x20, 0x20, 0x2a, 0x2f, 0x0a, + 0x69, 0x66, 0x28, 0x21, 0x41, 0x72, 0x72, 0x61, 0x79, 0x2e, 0x66, 0x6f, + 0x72, 0x45, 0x61, 0x63, 0x68, 0x29, 0x7b, 0x41, 0x72, 0x72, 0x61, 0x79, + 0x2e, 0x66, 0x6f, 0x72, 0x45, 0x61, 0x63, 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0x73, 0x69, 0x6f, 0x6e, 0x3a, 0x27, 0x27, 0x2c, 0x64, 0x61, 0x74, + 0x65, 0x3a, 0x27, 0x27, 0x7d, 0x3b diff --git a/png/ANNOUNCE b/png/ANNOUNCE new file mode 100644 index 0000000..47181be --- /dev/null +++ b/png/ANNOUNCE @@ -0,0 +1,41 @@ + +Libpng 1.6.12 - June 12, 2014 + +This is a public release of libpng, intended for use in production codes. + +Files available for download: + +Source files with LF line endings (for Unix/Linux) and with a +"configure" script + + libpng-1.6.12.tar.xz (LZMA-compressed, recommended) + libpng-1.6.12.tar.gz + +Source files with CRLF line endings (for Windows), without the +"configure" script + + lpng1612.7z (LZMA-compressed, recommended) + lpng1612.zip + +Other information: + + libpng-1.6.12-README.txt + libpng-1.6.12-LICENSE.txt + libpng-1.6.12-*.asc (armored detached GPG signatures) + +Changes since the last public release (1.6.11): + Relocated new code from 1.6.11 in png.c to a point after the + declarations (Max Stepin). + Changed file permissions of contrib/tools/intgamma.sh, + test-driver, and compile from 0644 to 0755 (Cosmin). + Ensure "__has_attribute()" macro exists before trying to use it with + old clang compilers (MacPorts Ticket #43939). + +Send comments/corrections/commendations to png-mng-implement at lists.sf.net +(subscription required; visit +https://lists.sourceforge.net/lists/listinfo/png-mng-implement +to subscribe) +or to glennrp at users.sourceforge.net + +Glenn R-P +#endif diff --git a/png/CHANGES b/png/CHANGES new file mode 100644 index 0000000..c1951a7 --- /dev/null +++ b/png/CHANGES @@ -0,0 +1,4950 @@ +#if 0 +CHANGES - changes for libpng + +Version 0.2 + added reader into png.h + fixed small problems in stub file + +Version 0.3 + added pull reader + split up pngwrite.c to several files + added pnglib.txt + added example.c + cleaned up writer, adding a few new transformations + fixed some bugs in writer + interfaced with zlib 0.5 + added K&R support + added check for 64 KB blocks for 16-bit machines + +Version 0.4 + cleaned up code and commented code + simplified time handling into png_time + created png_color_16 and png_color_8 to handle color needs + cleaned up color type defines + fixed various bugs + made various names more consistent + interfaced with zlib 0.71 + cleaned up zTXt reader and writer (using zlib's Reset functions) + split transformations into pngrtran.c and pngwtran.c + +Version 0.5 + interfaced with zlib 0.8 + fixed many reading and writing bugs + saved using 3 spaces instead of tabs + +Version 0.6 + added png_large_malloc() and png_large_free() + added png_size_t + cleaned up some compiler warnings + added png_start_read_image() + +Version 0.7 + cleaned up lots of bugs + finished dithering and other stuff + added test program + changed name from pnglib to libpng + +Version 0.71 [June, 1995] + changed pngtest.png for zlib 0.93 + fixed error in libpng.txt and example.c + +Version 0.8 + cleaned up some bugs + added png_set_filler() + split up pngstub.c into pngmem.c, pngio.c, and pngerror.c + added #define's to remove unwanted code + moved png_info_init() to png.c + added old_size into png_realloc() + added functions to manually set filtering and compression info + changed compression parameters based on image type + optimized filter selection code + added version info + changed external functions passing floats to doubles (k&r problems?) + put all the configurable stuff in pngconf.h + enabled png_set_shift to work with paletted images on read + added png_read_update_info() - updates info structure with transformations + +Version 0.81 [August, 1995] + incorporated Tim Wegner's medium model code (thanks, Tim) + +Version 0.82 [September, 1995] + [unspecified changes] + +Version 0.85 [December, 1995] + added more medium model code (almost everything's a far) + added i/o, error, and memory callback functions + fixed some bugs (16-bit, 4-bit interlaced, etc.) + added first run progressive reader (barely tested) + +Version 0.86 [January, 1996] + fixed bugs + improved documentation + +Version 0.87 [January, 1996] + fixed medium model bugs + fixed other bugs introduced in 0.85 and 0.86 + added some minor documentation + +Version 0.88 [January, 1996] + fixed progressive bugs + replaced tabs with spaces + cleaned up documentation + added callbacks for read/write and warning/error functions + +Version 0.89 [July, 1996] + Added new initialization API to make libpng work better with shared libs + we now have png_create_read_struct(), png_create_write_struct(), + png_create_info_struct(), png_destroy_read_struct(), and + png_destroy_write_struct() instead of the separate calls to + malloc and png_read_init(), png_info_init(), and png_write_init() + Changed warning/error callback functions to fix bug - this means you + should use the new initialization API if you were using the old + png_set_message_fn() calls, and that the old API no longer exists + so that people are aware that they need to change their code + Changed filter selection API to allow selection of multiple filters + since it didn't work in previous versions of libpng anyways + Optimized filter selection code + Fixed png_set_background() to allow using an arbitrary RGB color for + paletted images + Fixed gamma and background correction for paletted images, so + png_correct_palette is not needed unless you are correcting an + external palette (you will need to #define PNG_CORRECT_PALETTE_SUPPORTED + in pngconf.h) - if nobody uses this, it may disappear in the future. + Fixed bug with Borland 64K memory allocation (Alexander Lehmann) + Fixed bug in interlace handling (Smarasderagd, I think) + Added more error checking for writing and image to reduce invalid files + Separated read and write functions so that they won't both be linked + into a binary when only reading or writing functionality is used + New pngtest image also has interlacing and zTXt + Updated documentation to reflect new API + +Version 0.90 [January, 1997] + Made CRC errors/warnings on critical and ancillary chunks configurable + libpng will use the zlib CRC routines by (compile-time) default + Changed DOS small/medium model memory support - needs zlib 1.04 (Tim Wegner) + Added external C++ wrapper statements to png.h (Gilles Dauphin) + Allow PNG file to be read when some or all of file signature has already + been read from the beginning of the stream. ****This affects the size + of info_struct and invalidates all programs that use a shared libpng**** + Fixed png_filler() declarations + Fixed? background color conversions + Fixed order of error function pointers to match documentation + Current chunk name is now available in png_struct to reduce the number + of nearly identical error messages (will simplify multi-lingual + support when available) + Try to get ready for unknown-chunk callback functions: + - previously read critical chunks are flagged, so the chunk handling + routines can determine if the chunk is in the right place + - all chunk handling routines have the same prototypes, so we will + be able to handle all chunks via a callback mechanism + Try to fix Linux "setjmp" buffer size problems + Removed png_large_malloc, png_large_free, and png_realloc functions. + +Version 0.95 [March, 1997] + Fixed bug in pngwutil.c allocating "up_row" twice and "avg_row" never + Fixed bug in PNG file signature compares when start != 0 + Changed parameter type of png_set_filler(...filler...) from png_byte + to png_uint_32 + Added test for MACOS to ensure that both math.h and fp.h are not #included + Added macros for libpng to be compiled as a Windows DLL (Andreas Kupries) + Added "packswap" transformation, which changes the endianness of + packed-pixel bytes (Kevin Bracey) + Added "strip_alpha" transformation, which removes the alpha channel of + input images without using it (not necessarily a good idea) + Added "swap_alpha" transformation, which puts the alpha channel in front + of the color bytes instead of after + Removed all implicit variable tests which assume NULL == 0 (I think) + Changed several variables to "png_size_t" to show 16/32-bit limitations + Added new pCAL chunk read/write support + Added experimental filter selection weighting (Greg Roelofs) + Removed old png_set_rgbx() and png_set_xrgb() functions that have been + obsolete for about 2 years now (use png_set_filler() instead) + Added macros to read 16- and 32-bit ints directly from buffer, to be + used only on those systems that support it (namely PowerPC and 680x0) + With some testing, this may become the default for MACOS/PPC systems. + Only calculate CRC on data if we are going to use it + Added macros for zTXt compression type PNG_zTXt_COMPRESSION_??? + Added macros for simple libpng debugging output selectable at compile time + Removed PNG_READ_END_MODE in progressive reader (Smarasderagd) + More description of info_struct in libpng.txt and png.h + More instructions in example.c + More chunk types tested in pngtest.c + Renamed pngrcb.c to pngset.c, and all png_read_ functions to be + png_set_. We now have corresponding png_get_ + functions in pngget.c to get information in info_ptr. This isolates + the application from the internal organization of png_info_struct + (good for shared library implementations). + +Version 0.96 [May, 1997] + Fixed serious bug with < 8bpp images introduced in 0.95 + Fixed 256-color transparency bug (Greg Roelofs) + Fixed up documentation (Greg Roelofs, Laszlo Nyul) + Fixed "error" in pngconf.h for Linux setjmp() behavior + Fixed DOS medium model support (Tim Wegner) + Fixed png_check_keyword() for case with error in static string text + Added read of CRC after IEND chunk for embedded PNGs (Laszlo Nyul) + Added typecasts to quiet compiler errors + Added more debugging info + +Version 0.97 [January, 1998] + Removed PNG_USE_OWN_CRC capability + Relocated png_set_crc_action from pngrutil.c to pngrtran.c + Fixed typecasts of "new_key", etc. (Andreas Dilger) + Added RFC 1152 [sic] date support + Fixed bug in gamma handling of 4-bit grayscale + Added 2-bit grayscale gamma handling (Glenn R-P) + Added more typecasts. 65536L becomes (png_uint_32)65536L, etc. (Glenn R-P) + Minor corrections in libpng.txt + Added simple sRGB support (Glenn R-P) + Easier conditional compiling, e.g., + define PNG_READ/WRITE_NOT_FULLY_SUPPORTED; + all configurable options can be selected from command-line instead + of having to edit pngconf.h (Glenn R-P) + Fixed memory leak in pngwrite.c (free info_ptr->text) (Glenn R-P) + Added more conditions for png_do_background, to avoid changing + black pixels to background when a background is supplied and + no pixels are transparent + Repaired PNG_NO_STDIO behavior + Tested NODIV support and made it default behavior (Greg Roelofs) + Added "-m" option and PNGTEST_DEBUG_MEMORY to pngtest (John Bowler) + Regularized version numbering scheme and bumped shared-library major + version number to 2 to avoid problems with libpng 0.89 apps + (Greg Roelofs) + +Version 0.98 [January, 1998] + Cleaned up some typos in libpng.txt and in code documentation + Fixed memory leaks in pCAL chunk processing (Glenn R-P and John Bowler) + Cosmetic change "display_gamma" to "screen_gamma" in pngrtran.c + Changed recommendation about file_gamma for PC images to .51 from .45, + in example.c and libpng.txt, added comments to distinguish between + screen_gamma, viewing_gamma, and display_gamma. + Changed all references to RFC1152 to read RFC1123 and changed the + PNG_TIME_RFC1152_SUPPORTED macro to PNG_TIME_RFC1123_SUPPORTED + Added png_invert_alpha capability (Glenn R-P -- suggestion by Jon Vincent) + Changed srgb_intent from png_byte to int to avoid compiler bugs + +Version 0.99 [January 30, 1998] + Free info_ptr->text instead of end_info_ptr->text in pngread.c (John Bowler) + Fixed a longstanding "packswap" bug in pngtrans.c + Fixed some inconsistencies in pngconf.h that prevented compiling with + PNG_READ_GAMMA_SUPPORTED and PNG_READ_hIST_SUPPORTED undefined + Fixed some typos and made other minor rearrangement of libpng.txt (Andreas) + Changed recommendation about file_gamma for PC images to .50 from .51 in + example.c and libpng.txt, and changed file_gamma for sRGB images to .45 + Added a number of functions to access information from the png structure + png_get_image_height(), etc. (Glenn R-P, suggestion by Brad Pettit) + Added TARGET_MACOS similar to zlib-1.0.8 + Define PNG_ALWAYS_EXTERN when __MWERKS__ && WIN32 are defined + Added type casting to all png_malloc() function calls + +Version 0.99a [January 31, 1998] + Added type casts and parentheses to all returns that return a value.(Tim W.) + +Version 0.99b [February 4, 1998] + Added type cast png_uint_32 on malloc function calls where needed. + Changed type of num_hist from png_uint_32 to int (same as num_palette). + Added checks for rowbytes overflow, in case png_size_t is less than 32 bits. + Renamed makefile.elf to makefile.lnx. + +Version 0.99c [February 7, 1998] + More type casting. Removed erroneous overflow test in pngmem.c. + Added png_buffered_memcpy() and png_buffered_memset(), apply them to rowbytes. + Added UNIX manual pages libpng.3 (incorporating libpng.txt) and png.5. + +Version 0.99d [February 11, 1998] + Renamed "far_to_near()" "png_far_to_near()" + Revised libpng.3 + Version 99c "buffered" operations didn't work as intended. Replaced them + with png_memcpy_check() and png_memset_check(). + Added many "if (png_ptr == NULL) return" to quell compiler warnings about + unused png_ptr, mostly in pngget.c and pngset.c. + Check for overlength tRNS chunk present when indexed-color PLTE is read. + Cleaned up spelling errors in libpng.3/libpng.txt + Corrected a problem with png_get_tRNS() which returned undefined trans array + +Version 0.99e [February 28, 1998] + Corrected png_get_tRNS() again. + Add parentheses for easier reading of pngget.c, fixed "||" should be "&&". + Touched up example.c to make more of it compileable, although the entire + file still can't be compiled (Willem van Schaik) + Fixed a bug in png_do_shift() (Bryan Tsai) + Added a space in png.h prototype for png_write_chunk_start() + Replaced pngtest.png with one created with zlib 1.1.1 + Changed pngtest to report PASS even when file size is different (Jean-loup G.) + Corrected some logic errors in png_do_invert_alpha() (Chris Patterson) + +Version 0.99f [March 5, 1998] + Corrected a bug in pngpread() introduced in version 99c (Kevin Bracey) + Moved makefiles into a "scripts" directory, and added INSTALL instruction file + Added makefile.os2 and pngos2.def (A. Zabolotny) and makefile.s2x (W. Sebok) + Added pointers to "note on libpng versions" in makefile.lnx and README + Added row callback feature when reading and writing nonprogressive rows + and added a test of this feature in pngtest.c + Added user transform callbacks, with test of the feature in pngtest.c + +Version 0.99g [March 6, 1998, morning] + Minor changes to pngtest.c to suppress compiler warnings. + Removed "beta" language from documentation. + +Version 0.99h [March 6, 1998, evening] + Minor changes to previous minor changes to pngtest.c + Changed PNG_READ_NOT_FULLY_SUPPORTED to PNG_READ_TRANSFORMS_NOT_SUPPORTED + and added PNG_PROGRESSIVE_READ_NOT_SUPPORTED macro + Added user transform capability + +Version 1.00 [March 7, 1998] + Changed several typedefs in pngrutil.c + Added makefile.wat (Pawel Mrochen), updated makefile.tc3 (Willem van Schaik) + Replaced "while(1)" with "for(;;)" + Added PNGARG() to prototypes in pngtest.c and removed some prototypes + Updated some of the makefiles (Tom Lane) + Changed some typedefs (s_start, etc.) in pngrutil.c + Fixed dimensions of "short_months" array in pngwrite.c + Replaced ansi2knr.c with the one from jpeg-v6 + +Version 1.0.0 [March 8, 1998] + Changed name from 1.00 to 1.0.0 (Adam Costello) + Added smakefile.ppc (with SCOPTIONS.ppc) for Amiga PPC (Andreas Kleinert) + +Version 1.0.0a [March 9, 1998] + Fixed three bugs in pngrtran.c to make gamma+background handling consistent + (Greg Roelofs) + Changed format of the PNG_LIBPNG_VER integer to xyyzz instead of xyz + for major, minor, and bugfix releases. This is 10001. (Adam Costello, + Tom Lane) + Make months range from 1-12 in png_convert_to_rfc1123 + +Version 1.0.0b [March 13, 1998] + Quieted compiler complaints about two empty "for" loops in pngrutil.c + Minor changes to makefile.s2x + Removed #ifdef/#endif around a png_free() in pngread.c + +Version 1.0.1 [March 14, 1998] + Changed makefile.s2x to reduce security risk of using a relative pathname + Fixed some typos in the documentation (Greg). + Fixed a problem with value of "channels" returned by png_read_update_info() + +Version 1.0.1a [April 21, 1998] + Optimized Paeth calculations by replacing abs() function calls with intrinsics + plus other loop optimizations. Improves avg decoding speed by about 20%. + Commented out i386istic "align" compiler flags in makefile.lnx. + Reduced the default warning level in some makefiles, to make them consistent. + Removed references to IJG and JPEG in the ansi2knr.c copyright statement. + Fixed a bug in png_do_strip_filler with XXRRGGBB => RRGGBB transformation. + Added grayscale and 16-bit capability to png_do_read_filler(). + Fixed a bug in pngset.c, introduced in version 0.99c, that sets rowbytes + too large when writing an image with bit_depth < 8 (Bob Dellaca). + Corrected some bugs in the experimental weighted filtering heuristics. + Moved a misplaced pngrutil code block that truncates tRNS if it has more + than num_palette entries -- test was done before num_palette was defined. + Fixed a png_convert_to_rfc1123() bug that converts day 31 to 0 (Steve Eddins). + Changed compiler flags in makefile.wat for better optimization + (Pawel Mrochen). + +Version 1.0.1b [May 2, 1998] + Relocated png_do_gray_to_rgb() within png_do_read_transformations() (Greg). + Relocated the png_composite macros from pngrtran.c to png.h (Greg). + Added makefile.sco (contributed by Mike Hopkirk). + Fixed two bugs (missing definitions of "istop") introduced in libpng-1.0.1a. + Fixed a bug in pngrtran.c that would set channels=5 under some circumstances. + More work on the Paeth-filtering, achieving imperceptible speedup + (A Kleinert). + More work on loop optimization which may help when compiled with C++ + compilers. + Added warnings when people try to use transforms they've defined out. + Collapsed 4 "i" and "c" loops into single "i" loops in pngrtran and pngwtran. + Revised paragraph about png_set_expand() in libpng.txt and libpng.3 (Greg) + +Version 1.0.1c [May 11, 1998] + Fixed a bug in pngrtran.c (introduced in libpng-1.0.1a) where the masks for + filler bytes should have been 0xff instead of 0xf. + Added max_pixel_depth=32 in pngrutil.c when using FILLER with palette images. + Moved PNG_WRITE_WEIGHTED_FILTER_SUPPORTED and PNG_WRITE_FLUSH_SUPPORTED + out of the PNG_WRITE_TRANSFORMS_NOT_SUPPORTED block of pngconf.h + Added "PNG_NO_WRITE_TRANSFORMS" etc., as alternatives for *_NOT_SUPPORTED, + for consistency, in pngconf.h + Added individual "ifndef PNG_NO_[CAPABILITY]" in pngconf.h to make it easier + to remove unwanted capabilities via the compile line + Made some corrections to grammar (which, it's) in documentation (Greg). + Corrected example.c, use of row_pointers in png_write_image(). + +Version 1.0.1d [May 24, 1998] + Corrected several statements that used side effects illegally in pngrutil.c + and pngtrans.c, that were introduced in version 1.0.1b + Revised png_read_rows() to avoid repeated if-testing for NULL (A Kleinert) + More corrections to example.c, use of row_pointers in png_write_image() + and png_read_rows(). + Added pngdll.mak and pngdef.pas to scripts directory, contributed by + Bob Dellaca, to make a png32bd.dll with Borland C++ 4.5 + Fixed error in example.c with png_set_text: num_text is 3, not 2 (Guido V.) + Changed several loops from count-down to count-up, for consistency. + +Version 1.0.1e [June 6, 1998] + Revised libpng.txt and libpng.3 description of png_set_read|write_fn(), and + added warnings when people try to set png_read_fn and png_write_fn in + the same structure. + Added a test such that png_do_gamma will be done when num_trans==0 + for truecolor images that have defined a background. This corrects an + error that was introduced in libpng-0.90 that can cause gamma processing + to be skipped. + Added tests in png.h to include "trans" and "trans_values" in structures + when PNG_READ_BACKGROUND_SUPPORTED or PNG_READ_EXPAND_SUPPORTED is defined. + Add png_free(png_ptr->time_buffer) in png_destroy_read_struct() + Moved png_convert_to_rfc_1123() from pngwrite.c to png.c + Added capability for user-provided malloc_fn() and free_fn() functions, + and revised pngtest.c to demonstrate their use, replacing the + PNGTEST_DEBUG_MEM feature. + Added makefile.w32, for Microsoft C++ 4.0 and later (Tim Wegner). + +Version 1.0.2 [June 14, 1998] + Fixed two bugs in makefile.bor . + +Version 1.0.2a [December 30, 1998] + Replaced and extended code that was removed from png_set_filler() in 1.0.1a. + Fixed a bug in png_do_filler() that made it fail to write filler bytes in + the left-most pixel of each row (Kevin Bracey). + Changed "static pngcharp tIME_string" to "static char tIME_string[30]" + in pngtest.c (Duncan Simpson). + Fixed a bug in pngtest.c that caused pngtest to try to write a tIME chunk + even when no tIME chunk was present in the source file. + Fixed a problem in pngrutil.c: gray_to_rgb didn't always work with 16-bit. + Fixed a problem in png_read_push_finish_row(), which would not skip some + passes that it should skip, for images that are less than 3 pixels high. + Interchanged the order of calls to png_do_swap() and png_do_shift() + in pngwtran.c (John Cromer). + Added #ifdef PNG_DEBUG/#endif surrounding use of PNG_DEBUG in png.h . + Changed "bad adaptive filter type" from error to warning in pngrutil.c . + Fixed a documentation error about default filtering with 8-bit indexed-color. + Separated the PNG_NO_STDIO macro into PNG_NO_STDIO and PNG_NO_CONSOLE_IO + (L. Peter Deutsch). + Added png_set_rgb_to_gray() and png_get_rgb_to_gray_status() functions. + Added png_get_copyright() and png_get_header_version() functions. + Revised comments on png_set_progressive_read_fn() in libpng.txt and example.c + Added information about debugging in libpng.txt and libpng.3 . + Changed "ln -sf" to "ln -s -f" in makefile.s2x, makefile.lnx, and + makefile.sco. + Removed lines after Dynamic Dependencies" in makefile.aco . + Revised makefile.dec to make a shared library (Jeremie Petit). + Removed trailing blanks from all files. + +Version 1.0.2a [January 6, 1999] + Removed misplaced #endif and #ifdef PNG_NO_EXTERN near the end of png.h + Added "if" tests to silence complaints about unused png_ptr in png.h and png.c + Changed "check_if_png" function in example.c to return true (nonzero) if PNG. + Changed libpng.txt to demonstrate png_sig_cmp() instead of png_check_sig() + which is obsolete. + +Version 1.0.3 [January 14, 1999] + Added makefile.hux, for Hewlett Packard HPUX 10.20 and 11.00 (Jim Rice) + Added a statement of Y2K compliance in png.h, libpng.3, and Y2KINFO. + +Version 1.0.3a [August 12, 1999] + Added check for PNG_READ_INTERLACE_SUPPORTED in pngread.c; issue a warning + if an attempt is made to read an interlaced image when it's not supported. + Added check if png_ptr->trans is defined before freeing it in pngread.c + Modified the Y2K statement to include versions back to version 0.71 + Fixed a bug in the check for valid IHDR bit_depth/color_types in pngrutil.c + Modified makefile.wat (added -zp8 flag, ".symbolic", changed some comments) + Replaced leading blanks with tab characters in makefile.hux + Changed "dworkin.wustl.edu" to "ccrc.wustl.edu" in various documents. + Changed (float)red and (float)green to (double)red, (double)green + in png_set_rgb_to_gray() to avoid "promotion" problems in AIX. + Fixed a bug in pngconf.h that omitted when PNG_DEBUG==0 (K Bracey). + Reformatted libpng.3 and libpngpf.3 with proper fonts (script by J. vanZandt). + Updated documentation to refer to the PNG-1.2 specification. + Removed ansi2knr.c and left pointers to the latest source for ansi2knr.c + in makefile.knr, INSTALL, and README (L. Peter Deutsch) + Fixed bugs in calculation of the length of rowbytes when adding alpha + channels to 16-bit images, in pngrtran.c (Chris Nokleberg) + Added function png_set_user_transform_info() to store user_transform_ptr, + user_depth, and user_channels into the png_struct, and a function + png_get_user_transform_ptr() to retrieve the pointer (Chris Nokleberg) + Added function png_set_empty_plte_permitted() to make libpng useable + in MNG applications. + Corrected the typedef for png_free_ptr in png.h (Jesse Jones). + Correct gamma with srgb is 45455 instead of 45000 in pngrutil.c, to be + consistent with PNG-1.2, and allow variance of 500 before complaining. + Added assembler code contributed by Intel in file pngvcrd.c and modified + makefile.w32 to use it (Nirav Chhatrapati, INTEL Corporation, + Gilles Vollant) + Changed "ln -s -f" to "ln -f -s" in the makefiles to make Solaris happy. + Added some aliases for png_set_expand() in pngrtran.c, namely + png_set_expand_PLTE(), png_set_expand_depth(), and png_set_expand_tRNS() + (Greg Roelofs, in "PNG: The Definitive Guide"). + Added makefile.beo for BEOS on X86, contributed by Sander Stok. + +Version 1.0.3b [August 26, 1999] + Replaced 2147483647L several places with PNG_MAX_UINT macro, defined in png.h + Changed leading blanks to tabs in all makefiles. + Define PNG_USE_PNGVCRD in makefile.w32, to get MMX assembler code. + Made alternate versions of png_set_expand() in pngrtran.c, namely + png_set_gray_1_2_4_to_8, png_set_palette_to_rgb, and png_set_tRNS_to_alpha + (Greg Roelofs, in "PNG: The Definitive Guide"). Deleted the 1.0.3a aliases. + Relocated start of 'extern "C"' block in png.h so it doesn't include pngconf.h + Revised calculation of num_blocks in pngmem.c to avoid a potentially + negative shift distance, whose results are undefined in the C language. + Added a check in pngset.c to prevent writing multiple tIME chunks. + Added a check in pngwrite.c to detect invalid small window_bits sizes. + +Version 1.0.3d [September 4, 1999] + Fixed type casting of igamma in pngrutil.c + Added new png_expand functions to scripts/pngdef.pas and pngos2.def + Added a demo read_user_transform_fn that examines the row filters in pngtest.c + +Version 1.0.4 [September 24, 1999] + Define PNG_ALWAYS_EXTERN in pngconf.h if __STDC__ is defined + Delete #define PNG_INTERNAL and include "png.h" from pngasmrd.h + Made several minor corrections to pngtest.c + Renamed the makefiles with longer but more user friendly extensions. + Copied the PNG copyright and license to a separate LICENSE file. + Revised documentation, png.h, and example.c to remove reference to + "viewing_gamma" which no longer appears in the PNG specification. + Revised pngvcrd.c to use MMX code for interlacing only on the final pass. + Updated pngvcrd.c to use the faster C filter algorithms from libpng-1.0.1a + Split makefile.win32vc into two versions, makefile.vcawin32 (uses MMX + assembler code) and makefile.vcwin32 (doesn't). + Added a CPU timing report to pngtest.c (enabled by defining PNGTEST_TIMING) + Added a copy of pngnow.png to the distribution. + +Version 1.0.4a [September 25, 1999] + Increase max_pixel_depth in pngrutil.c if a user transform needs it. + Changed several division operations to right-shifts in pngvcrd.c + +Version 1.0.4b [September 30, 1999] + Added parentheses in line 3732 of pngvcrd.c + Added a comment in makefile.linux warning about buggy -O3 in pgcc 2.95.1 + +Version 1.0.4c [October 1, 1999] + Added a "png_check_version" function in png.c and pngtest.c that will generate + a helpful compiler error if an old png.h is found in the search path. + Changed type of png_user_transform_depth|channels from int to png_byte. + +Version 1.0.4d [October 6, 1999] + Changed 0.45 to 0.45455 in png_set_sRGB() + Removed unused PLTE entries from pngnow.png + Re-enabled some parts of pngvcrd.c (png_combine_row) that work properly. + +Version 1.0.4e [October 10, 1999] + Fixed sign error in pngvcrd.c (Greg Roelofs) + Replaced some instances of memcpy with simple assignments in pngvcrd (GR-P) + +Version 1.0.4f [October 15, 1999] + Surrounded example.c code with #if 0 .. #endif to prevent people from + inadvertently trying to compile it. + Changed png_get_header_version() from a function to a macro in png.h + Added type casting mostly in pngrtran.c and pngwtran.c + Removed some pointless "ptr = NULL" in pngmem.c + Added a "contrib" directory containing the source code from Greg's book. + +Version 1.0.5 [October 15, 1999] + Minor editing of the INSTALL and README files. + +Version 1.0.5a [October 23, 1999] + Added contrib/pngsuite and contrib/pngminus (Willem van Schaik) + Fixed a typo in the png_set_sRGB() function call in example.c (Jan Nijtmans) + Further optimization and bugfix of pngvcrd.c + Revised pngset.c so that it does not allocate or free memory in the user's + text_ptr structure. Instead, it makes its own copy. + Created separate write_end_info_struct in pngtest.c for a more severe test. + Added code in pngwrite.c to free info_ptr->text[i].key to stop a memory leak. + +Version 1.0.5b [November 23, 1999] + Moved PNG_FLAG_HAVE_CHUNK_HEADER, PNG_FLAG_BACKGROUND_IS_GRAY and + PNG_FLAG_WROTE_tIME from flags to mode. + Added png_write_info_before_PLTE() function. + Fixed some typecasting in contrib/gregbook/*.c + Updated scripts/makevms.com and added makevms.com to contrib/gregbook + and contrib/pngminus (Martin Zinser) + +Version 1.0.5c [November 26, 1999] + Moved png_get_header_version from png.h to png.c, to accommodate ansi2knr. + Removed all global arrays (according to PNG_NO_GLOBAL_ARRAYS macro), to + accommodate making DLL's: Moved usr_png_ver from global variable to function + png_get_header_ver() in png.c. Moved png_sig to png_sig_bytes in png.c and + eliminated use of png_sig in pngwutil.c. Moved the various png_CHNK arrays + into pngtypes.h. Eliminated use of global png_pass arrays. Declared the + png_CHNK and png_pass arrays to be "const". Made the global arrays + available to applications (although none are used in libpng itself) when + PNG_NO_GLOBAL_ARRAYS is not defined or when PNG_GLOBAL_ARRAYS is defined. + Removed some extraneous "-I" from contrib/pngminus/makefile.std + Changed the PNG_sRGB_INTENT macros in png.h to be consistent with PNG-1.2. + Change PNG_SRGB_INTENT to PNG_sRGB_INTENT in libpng.txt and libpng.3 + +Version 1.0.5d [November 29, 1999] + Add type cast (png_const_charp) two places in png.c + Eliminated pngtypes.h; use macros instead to declare PNG_CHNK arrays. + Renamed "PNG_GLOBAL_ARRAYS" to "PNG_USE_GLOBAL_ARRAYS" and made available + to applications a macro "PNG_USE_LOCAL_ARRAYS". + comment out (with #ifdef) all the new declarations when + PNG_USE_GLOBAL_ARRAYS is defined. + Added PNG_EXPORT_VAR macro to accommodate making DLL's. + +Version 1.0.5e [November 30, 1999] + Added iCCP, iTXt, and sPLT support; added "lang" member to the png_text + structure; refactored the inflate/deflate support to make adding new chunks + with trailing compressed parts easier in the future, and added new functions + png_free_iCCP, png_free_pCAL, png_free_sPLT, png_free_text, png_get_iCCP, + png_get_spalettes, png_set_iCCP, png_set_spalettes (Eric S. Raymond). + NOTE: Applications that write text chunks MUST define png_text->lang + before calling png_set_text(). It must be set to NULL if you want to + write tEXt or zTXt chunks. If you want your application to be able to + run with older versions of libpng, use + + #ifdef PNG_iTXt_SUPPORTED + png_text[i].lang = NULL; + #endif + + Changed png_get_oFFs() and png_set_oFFs() to use signed rather than unsigned + offsets (Eric S. Raymond). + Combined PNG_READ_cHNK_SUPPORTED and PNG_WRITE_cHNK_SUPPORTED macros into + PNG_cHNK_SUPPORTED and combined the three types of PNG_text_SUPPORTED + macros, leaving the separate macros also available. + Removed comments on #endifs at the end of many short, non-nested #if-blocks. + +Version 1.0.5f [December 6, 1999] + Changed makefile.solaris to issue a warning about potential problems when + the ucb "ld" is in the path ahead of the ccs "ld". + Removed "- [date]" from the "synopsis" line in libpng.3 and libpngpf.3. + Added sCAL chunk support (Eric S. Raymond). + +Version 1.0.5g [December 7, 1999] + Fixed "png_free_spallettes" typo in png.h + Added code to handle new chunks in pngpread.c + Moved PNG_CHNK string macro definitions outside of PNG_NO_EXTERN block + Added "translated_key" to png_text structure and png_write_iTXt(). + Added code in pngwrite.c to work around a newly discovered zlib bug. + +Version 1.0.5h [December 10, 1999] + NOTE: regarding the note for version 1.0.5e, the following must also + be included in your code: + png_text[i].translated_key = NULL; + Unknown chunk handling is now supported. + Option to eliminate all floating point support was added. Some new + fixed-point functions such as png_set_gAMA_fixed() were added. + Expanded tabs and removed trailing blanks in source files. + +Version 1.0.5i [December 13, 1999] + Added some type casts to silence compiler warnings. + Renamed "png_free_spalette" to "png_free_spalettes" for consistency. + Removed leading blanks from a #define in pngvcrd.c + Added some parameters to the new png_set_keep_unknown_chunks() function. + Added a test for up->location != 0 in the first instance of writing + unknown chunks in pngwrite.c + Changed "num" to "i" in png_free_spalettes() and png_free_unknowns() to + prevent recursion. + Added png_free_hIST() function. + Various patches to fix bugs in the sCAL and integer cHRM processing, + and to add some convenience macros for use with sCAL. + +Version 1.0.5j [December 21, 1999] + Changed "unit" parameter of png_write_sCAL from png_byte to int, to work + around buggy compilers. + Added new type "png_fixed_point" for integers that hold float*100000 values + Restored backward compatibility of tEXt/zTXt chunk processing: + Restored the first four members of png_text to the same order as v.1.0.5d. + Added members "lang_key" and "itxt_length" to png_text struct. Set + text_length=0 when "text" contains iTXt data. Use the "compression" + member to distinguish among tEXt/zTXt/iTXt types. Added + PNG_ITXT_COMPRESSION_NONE (1) and PNG_ITXT_COMPRESSION_zTXt(2) macros. + The "Note" above, about backward incompatibility of libpng-1.0.5e, no + longer applies. + Fixed png_read|write_iTXt() to read|write parameters in the right order, + and to write the iTXt chunk after IDAT if it appears in the end_ptr. + Added pnggccrd.c, version of pngvcrd.c Intel assembler for gcc (Greg Roelofs) + Reversed the order of trying to write floating-point and fixed-point gAMA. + +Version 1.0.5k [December 27, 1999] + Added many parentheses, e.g., "if (a && b & c)" becomes "if (a && (b & c))" + Added png_handle_as_unknown() function (Glenn) + Added png_free_chunk_list() function and chunk_list and num_chunk_list members + of png_ptr. + Eliminated erroneous warnings about multiple sPLT chunks and sPLT-after-PLTE. + Fixed a libpng-1.0.5h bug in pngrutil.c that was issuing erroneous warnings + about ignoring incorrect gAMA with sRGB (gAMA was in fact not ignored) + Added png_free_tRNS(); png_set_tRNS() now malloc's its own trans array (ESR). + Define png_get_int_32 when oFFs chunk is supported as well as when pCAL is. + Changed type of proflen from png_int_32 to png_uint_32 in png_get_iCCP(). + +Version 1.0.5l [January 1, 2000] + Added functions png_set_read_user_chunk_fn() and png_get_user_chunk_ptr() + for setting a callback function to handle unknown chunks and for + retrieving the associated user pointer (Glenn). + +Version 1.0.5m [January 7, 2000] + Added high-level functions png_read_png(), png_write_png(), png_free_pixels(). + +Version 1.0.5n [January 9, 2000] + Added png_free_PLTE() function, and modified png_set_PLTE() to malloc its + own memory for info_ptr->palette. This makes it safe for the calling + application to free its copy of the palette any time after it calls + png_set_PLTE(). + +Version 1.0.5o [January 20, 2000] + Cosmetic changes only (removed some trailing blanks and TABs) + +Version 1.0.5p [January 31, 2000] + Renamed pngdll.mak to makefile.bd32 + Cosmetic changes in pngtest.c + +Version 1.0.5q [February 5, 2000] + Relocated the makefile.solaris warning about PATH problems. + Fixed pngvcrd.c bug by pushing/popping registers in mmxsupport (Bruce Oberg) + Revised makefile.gcmmx + Added PNG_SETJMP_SUPPORTED, PNG_SETJMP_NOT_SUPPORTED, and PNG_ABORT() macros + +Version 1.0.5r [February 7, 2000] + Removed superfluous prototype for png_get_itxt from png.h + Fixed a bug in pngrtran.c that improperly expanded the background color. + Return *num_text=0 from png_get_text() when appropriate, and fix documentation + of png_get_text() in libpng.txt/libpng.3. + +Version 1.0.5s [February 18, 2000] + Added "png_jmp_env()" macro to pngconf.h, to help people migrate to the + new error handler that's planned for the next libpng release, and changed + example.c, pngtest.c, and contrib programs to use this macro. + Revised some of the DLL-export macros in pngconf.h (Greg Roelofs) + Fixed a bug in png_read_png() that caused it to fail to expand some images + that it should have expanded. + Fixed some mistakes in the unused and undocumented INCH_CONVERSIONS functions + in pngget.c + Changed the allocation of palette, history, and trans arrays back to + the version 1.0.5 method (linking instead of copying) which restores + backward compatibility with version 1.0.5. Added some remarks about + that in example.c. Added "free_me" member to info_ptr and png_ptr + and added png_free_data() function. + Updated makefile.linux and makefile.gccmmx to make directories conditionally. + Made cosmetic changes to pngasmrd.h + Added png_set_rows() and png_get_rows(), for use with png_read|write_png(). + Modified png_read_png() to allocate info_ptr->row_pointers only if it + hasn't already been allocated. + +Version 1.0.5t [March 4, 2000] + Changed png_jmp_env() migration aiding macro to png_jmpbuf(). + Fixed "interlace" typo (should be "interlaced") in contrib/gregbook/read2-x.c + Fixed bug with use of PNG_BEFORE_IHDR bit in png_ptr->mode, introduced when + PNG_FLAG_HAVE_CHUNK_HEADER was moved into png_ptr->mode in version 1.0.5b + Files in contrib/gregbook were revised to use png_jmpbuf() and to select + a 24-bit visual if one is available, and to allow abbreviated options. + Files in contrib/pngminus were revised to use the png_jmpbuf() macro. + Removed spaces in makefile.linux and makefile.gcmmx, introduced in 1.0.5s + +Version 1.0.5u [March 5, 2000] + Simplified the code that detects old png.h in png.c and pngtest.c + Renamed png_spalette (_p, _pp) to png_sPLT_t (_tp, _tpp) + Increased precision of rgb_to_gray calculations from 8 to 15 bits and + added png_set_rgb_to_gray_fixed() function. + Added makefile.bc32 (32-bit Borland C++, C mode) + +Version 1.0.5v [March 11, 2000] + Added some parentheses to the png_jmpbuf macro definition. + Updated references to the zlib home page, which has moved to freesoftware.com. + Corrected bugs in documentation regarding png_read_row() and png_write_row(). + Updated documentation of png_rgb_to_gray calculations in libpng.3/libpng.txt. + Renamed makefile.borland,turboc3 back to makefile.bor,tc3 as in version 1.0.3, + revised borland makefiles; added makefile.ibmvac3 and makefile.gcc (Cosmin) + +Version 1.0.6 [March 20, 2000] + Minor revisions of makefile.bor, libpng.txt, and gregbook/rpng2-win.c + Added makefile.sggcc (SGI IRIX with gcc) + +Version 1.0.6d [April 7, 2000] + Changed sprintf() to strcpy() in png_write_sCAL_s() to work without STDIO + Added data_length parameter to png_decompress_chunk() function + Revised documentation to remove reference to abandoned png_free_chnk functions + Fixed an error in png_rgb_to_gray_fixed() + Revised example.c, usage of png_destroy_write_struct(). + Renamed makefile.ibmvac3 to makefile.ibmc, added libpng.icc IBM project file + Added a check for info_ptr->free_me&PNG_FREE_TEXT when freeing text in png.c + Simplify png_sig_bytes() function to remove use of non-ISO-C strdup(). + +Version 1.0.6e [April 9, 2000] + Added png_data_freer() function. + In the code that checks for over-length tRNS chunks, added check of + info_ptr->num_trans as well as png_ptr->num_trans (Matthias Benckmann) + Minor revisions of libpng.txt/libpng.3. + Check for existing data and free it if the free_me flag is set, in png_set_*() + and png_handle_*(). + Only define PNG_WEIGHTED_FILTERS_SUPPORTED when PNG_FLOATING_POINT_SUPPORTED + is defined. + Changed several instances of PNG_NO_CONSOLE_ID to PNG_NO_STDIO in pngrutil.c + and mentioned the purposes of the two macros in libpng.txt/libpng.3. + +Version 1.0.6f [April 14, 2000] + Revised png_set_iCCP() and png_set_rows() to avoid prematurely freeing data. + Add checks in png_set_text() for NULL members of the input text structure. + Revised libpng.txt/libpng.3. + Removed superfluous prototype for png_set_iTXt from png.h + Removed "else" from pngread.c, after png_error(), and changed "0" to "length". + Changed several png_errors about malformed ancillary chunks to png_warnings. + +Version 1.0.6g [April 24, 2000] + Added png_pass-* arrays to pnggccrd.c when PNG_USE_LOCAL_ARRAYS is defined. + Relocated paragraph about png_set_background() in libpng.3/libpng.txt + and other revisions (Matthias Benckmann) + Relocated info_ptr->free_me, png_ptr->free_me, and other info_ptr and + png_ptr members to restore binary compatibility with libpng-1.0.5 + (breaks compatibility with libpng-1.0.6). + +Version 1.0.6h [April 24, 2000] + Changed shared library so-number pattern from 2.x.y.z to xy.z (this builds + libpng.so.10 & libpng.so.10.6h instead of libpng.so.2 & libpng.so.2.1.0.6h) + This is a temporary change for test purposes. + +Version 1.0.6i [May 2, 2000] + Rearranged some members at the end of png_info and png_struct, to put + unknown_chunks_num and free_me within the original size of the png_structs + and free_me, png_read_user_fn, and png_free_fn within the original png_info, + because some old applications allocate the structs directly instead of + using png_create_*(). + Added documentation of user memory functions in libpng.txt/libpng.3 + Modified png_read_png so that it will use user_allocated row_pointers + if present, unless free_me directs that it be freed, and added description + of the use of png_set_rows() and png_get_rows() in libpng.txt/libpng.3. + Added PNG_LEGACY_SUPPORTED macro, and #ifdef out all new (since version + 1.00) members of png_struct and png_info, to regain binary compatibility + when you define this macro. Capabilities lost in this event + are user transforms (new in version 1.0.0),the user transform pointer + (new in version 1.0.2), rgb_to_gray (new in 1.0.5), iCCP, sCAL, sPLT, + the high-level interface, and unknown chunks support (all new in 1.0.6). + This was necessary because of old applications that allocate the structs + directly as authors were instructed to do in libpng-0.88 and earlier, + instead of using png_create_*(). + Added modes PNG_CREATED_READ_STRUCT and PNG_CREATED_WRITE_STRUCT which + can be used to detect codes that directly allocate the structs, and + code to check these modes in png_read_init() and png_write_init() and + generate a libpng error if the modes aren't set and PNG_LEGACY_SUPPORTED + was not defined. + Added makefile.intel and updated makefile.watcom (Pawel Mrochen) + +Version 1.0.6j [May 3, 2000] + Overloaded png_read_init() and png_write_init() with macros that convert + calls to png_read_init_2() or png_write_init_2() that check the version + and structure sizes. + +Version 1.0.7beta11 [May 7, 2000] + Removed the new PNG_CREATED_READ_STRUCT and PNG_CREATED_WRITE_STRUCT modes + which are no longer used. + Eliminated the three new members of png_text when PNG_LEGACY_SUPPORTED is + defined or when neither PNG_READ_iTXt_SUPPORTED nor PNG_WRITE_iTXT_SUPPORTED + is defined. + Made PNG_NO_READ|WRITE_iTXt the default setting, to avoid memory + overrun when old applications fill the info_ptr->text structure directly. + Added PNGAPI macro, and added it to the definitions of all exported functions. + Relocated version macro definitions ahead of the includes of zlib.h and + pngconf.h in png.h. + +Version 1.0.7beta12 [May 12, 2000] + Revised pngset.c to avoid a problem with expanding the png_debug macro. + Deleted some extraneous defines from pngconf.h + Made PNG_NO_CONSOLE_IO the default condition when PNG_BUILD_DLL is defined. + Use MSC _RPTn debugging instead of fprintf if _MSC_VER is defined. + Added png_access_version_number() function. + Check for mask&PNG_FREE_CHNK (for TEXT, SCAL, PCAL) in png_free_data(). + Expanded libpng.3/libpng.txt information about png_data_freer(). + +Version 1.0.7beta14 [May 17, 2000] (beta13 was not published) + Changed pnggccrd.c and pngvcrd.c to handle bad adaptive filter types as + warnings instead of errors, as pngrutil.c does. + Set the PNG_INFO_IDAT valid flag in png_set_rows() so png_write_png() + will actually write IDATs. + Made the default PNG_USE_LOCAL_ARRAYS depend on PNG_DLL instead of WIN32. + Make png_free_data() ignore its final parameter except when freeing data + that can have multiple instances (text, sPLT, unknowns). + Fixed a new bug in png_set_rows(). + Removed info_ptr->valid tests from png_free_data(), as in version 1.0.5. + Added png_set_invalid() function. + Fixed incorrect illustrations of png_destroy_write_struct() in example.c. + +Version 1.0.7beta15 [May 30, 2000] + Revised the deliberately erroneous Linux setjmp code in pngconf.h to produce + fewer error messages. + Rearranged checks for Z_OK to check the most likely path first in pngpread.c + and pngwutil.c. + Added checks in pngtest.c for png_create_*() returning NULL, and mentioned + in libpng.txt/libpng.3 the need for applications to check this. + Changed names of png_default_*() functions in pngtest to pngtest_*(). + Changed return type of png_get_x|y_offset_*() from png_uint_32 to png_int_32. + Fixed some bugs in the unused PNG_INCH_CONVERSIONS functions in pngget.c + Set each pointer to NULL after freeing it in png_free_data(). + Worked around a problem in pngconf.h; AIX's strings.h defines an "index" + macro that conflicts with libpng's png_color_16.index. (Dimitri + Papadapoulos) + Added "msvc" directory with MSVC++ project files (Simon-Pierre Cadieux). + +Version 1.0.7beta16 [June 4, 2000] + Revised the workaround of AIX string.h "index" bug. + Added a check for overlength PLTE chunk in pngrutil.c. + Added PNG_NO_POINTER_INDEXING macro to use array-indexing instead of pointer + indexing in pngrutil.c and pngwutil.c to accommodate a buggy compiler. + Added a warning in png_decompress_chunk() when it runs out of data, e.g. + when it tries to read an erroneous PhotoShop iCCP chunk. + Added PNG_USE_DLL macro. + Revised the copyright/disclaimer/license notice. + Added contrib/msvctest directory + +Version 1.0.7rc1 [June 9, 2000] + Corrected the definition of PNG_TRANSFORM_INVERT_ALPHA (0x0400 not 0x0200) + Added contrib/visupng directory (Willem van Schaik) + +Version 1.0.7beta18 [June 23, 2000] + Revised PNGAPI definition, and pngvcrd.c to work with __GCC__ + and do not redefine PNGAPI if it is passed in via a compiler directive. + Revised visupng/PngFile.c to remove returns from within the Try block. + Removed leading underscores from "_PNG_H" and "_PNG_SAVE_BSD_SOURCE" macros. + Updated contrib/visupng/cexcept.h to version 1.0.0. + Fixed bugs in pngwrite.c and pngwutil.c that prevented writing iCCP chunks. + +Version 1.0.7rc2 [June 28, 2000] + Updated license to include disclaimers required by UCITA. + Fixed "DJBPP" typo in pnggccrd.c introduced in beta18. + +Version 1.0.7 [July 1, 2000] + Revised the definition of "trans_values" in libpng.3/libpng.txt + +Version 1.0.8beta1 [July 8, 2000] + Added png_free(png_ptr, key) two places in pngpread.c to stop memory leaks. + Changed PNG_NO_STDIO to PNG_NO_CONSOLE_IO, several places in pngrutil.c and + pngwutil.c. + Changed PNG_EXPORT_VAR to use PNG_IMPEXP, in pngconf.h. + Removed unused "#include " from png.c + Added WindowsCE support. + Revised pnggccrd.c to work with gcc-2.95.2 and in the Cygwin environment. + +Version 1.0.8beta2 [July 10, 2000] + Added project files to the wince directory and made further revisions + of pngtest.c, pngrio.c, and pngwio.c in support of WindowsCE. + +Version 1.0.8beta3 [July 11, 2000] + Only set the PNG_FLAG_FREE_TRNS or PNG_FREE_TRNS flag in png_handle_tRNS() + for indexed-color input files to avoid potential double-freeing trans array + under some unusual conditions; problem was introduced in version 1.0.6f. + Further revisions to pngtest.c and files in the wince subdirectory. + +Version 1.0.8beta4 [July 14, 2000] + Added the files pngbar.png and pngbar.jpg to the distribution. + Added makefile.cygwin, and cygwin support in pngconf.h + Added PNG_NO_ZALLOC_ZERO macro (makes png_zalloc skip zeroing memory) + +Version 1.0.8rc1 [July 16, 2000] + Revised png_debug() macros and statements to eliminate compiler warnings. + +Version 1.0.8 [July 24, 2000] + Added png_flush() in pngwrite.c, after png_write_IEND(). + Updated makefile.hpux to build a shared library. + +Version 1.0.9beta1 [November 10, 2000] + Fixed typo in scripts/makefile.hpux + Updated makevms.com in scripts and contrib/* and contrib/* (Martin Zinser) + Fixed seqence-point bug in contrib/pngminus/png2pnm (Martin Zinser) + Changed "cdrom.com" in documentation to "libpng.org" + Revised pnggccrd.c to get it all working, and updated makefile.gcmmx (Greg). + Changed type of "params" from voidp to png_voidp in png_read|write_png(). + Make sure PNGAPI and PNG_IMPEXP are defined in pngconf.h. + Revised the 3 instances of WRITEFILE in pngtest.c. + Relocated "msvc" and "wince" project subdirectories into "dll" subdirectory. + Updated png.rc in dll/msvc project + Revised makefile.dec to define and use LIBPATH and INCPATH + Increased size of global png_libpng_ver[] array from 12 to 18 chars. + Made global png_libpng_ver[], png_sig[] and png_pass_*[] arrays const. + Removed duplicate png_crc_finish() from png_handle_bKGD() function. + Added a warning when application calls png_read_update_info() multiple times. + Revised makefile.cygwin + Fixed bugs in iCCP support in pngrutil.c and pngwutil.c. + Replaced png_set_empty_plte_permitted() with png_permit_mng_features(). + +Version 1.0.9beta2 [November 19, 2000] + Renamed the "dll" subdirectory "projects". + Added borland project files to "projects" subdirectory. + Set VS_FF_PRERELEASE and VS_FF_PATCHED flags in msvc/png.rc when appropriate. + Add error message in png_set_compression_buffer_size() when malloc fails. + +Version 1.0.9beta3 [November 23, 2000] + Revised PNG_LIBPNG_BUILD_TYPE macro in png.h, used in the msvc project. + Removed the png_flush() in pngwrite.c that crashes some applications + that don't set png_output_flush_fn. + Added makefile.macosx and makefile.aix to scripts directory. + +Version 1.0.9beta4 [December 1, 2000] + Change png_chunk_warning to png_warning in png_check_keyword(). + Increased the first part of msg buffer from 16 to 18 in png_chunk_error(). + +Version 1.0.9beta5 [December 15, 2000] + Added support for filter method 64 (for PNG datastreams embedded in MNG). + +Version 1.0.9beta6 [December 18, 2000] + Revised png_set_filter() to accept filter method 64 when appropriate. + Added new PNG_HAVE_PNG_SIGNATURE bit to png_ptr->mode and use it to + help prevent applications from using MNG features in PNG datastreams. + Added png_permit_mng_features() function. + Revised libpng.3/libpng.txt. Changed "filter type" to "filter method". + +Version 1.0.9rc1 [December 23, 2000] + Revised test for PNG_HAVE_PNG_SIGNATURE in pngrutil.c + Fixed error handling of unknown compression type in png_decompress_chunk(). + In pngconf.h, define __cdecl when _MSC_VER is defined. + +Version 1.0.9beta7 [December 28, 2000] + Changed PNG_TEXT_COMPRESSION_zTXt to PNG_COMPRESSION_TYPE_BASE several places. + Revised memory management in png_set_hIST and png_handle_hIST in a backward + compatible manner. PLTE and tRNS were revised similarly. + Revised the iCCP chunk reader to ignore trailing garbage. + +Version 1.0.9beta8 [January 12, 2001] + Moved pngasmrd.h into pngconf.h. + Improved handling of out-of-spec garbage iCCP chunks generated by PhotoShop. + +Version 1.0.9beta9 [January 15, 2001] + Added png_set_invalid, png_permit_mng_features, and png_mmx_supported to + wince and msvc project module definition files. + Minor revision of makefile.cygwin. + Fixed bug with progressive reading of narrow interlaced images in pngpread.c + +Version 1.0.9beta10 [January 16, 2001] + Do not typedef png_FILE_p in pngconf.h when PNG_NO_STDIO is defined. + Fixed "png_mmx_supported" typo in project definition files. + +Version 1.0.9beta11 [January 19, 2001] + Updated makefile.sgi to make shared library. + Removed png_mmx_support() function and disabled PNG_MNG_FEATURES_SUPPORTED + by default, for the benefit of DLL forward compatibility. These will + be re-enabled in version 1.2.0. + +Version 1.0.9rc2 [January 22, 2001] + Revised cygwin support. + +Version 1.0.9 [January 31, 2001] + Added check of cygwin's ALL_STATIC in pngconf.h + Added "-nommx" parameter to contrib/gregbook/rpng2-win and rpng2-x demos. + +Version 1.0.10beta1 [March 14, 2001] + Revised makefile.dec, makefile.sgi, and makefile.sggcc; added makefile.hpgcc. + Reformatted libpng.3 to eliminate bad line breaks. + Added checks for _mmx_supported in the read_filter_row function of pnggccrd.c + Added prototype for png_mmx_support() near the top of pnggccrd.c + Moved some error checking from png_handle_IHDR to png_set_IHDR. + Added PNG_NO_READ_SUPPORTED and PNG_NO_WRITE_SUPPORTED macros. + Revised png_mmx_support() function in pnggccrd.c + Restored version 1.0.8 PNG_WRITE_EMPTY_PLTE_SUPPORTED behavior in pngwutil.c + Fixed memory leak in contrib/visupng/PngFile.c + Fixed bugs in png_combine_row() in pnggccrd.c and pngvcrd.c (C version) + Added warnings when retrieving or setting gamma=0. + Increased the first part of msg buffer from 16 to 18 in png_chunk_warning(). + +Version 1.0.10rc1 [March 23, 2001] + Changed all instances of memcpy, strcpy, and strlen to png_memcpy, png_strcpy, + and png_strlen. + Revised png_mmx_supported() function in pnggccrd.c to return proper value. + Fixed bug in progressive reading (pngpread.c) with small images (height < 8). + +Version 1.0.10 [March 30, 2001] + Deleted extraneous space (introduced in 1.0.9) from line 42 of makefile.cygwin + Added beos project files (Chris Herborth) + +Version 1.0.11beta1 [April 3, 2001] + Added type casts on several png_malloc() calls (Dimitri Papadapoulos). + Removed a no-longer needed AIX work-around from pngconf.h + Changed several "//" single-line comments to C-style in pnggccrd.c + +Version 1.0.11beta2 [April 11, 2001] + Removed PNGAPI from several functions whose prototypes did not have PNGAPI. + Updated scripts/pngos2.def + +Version 1.0.11beta3 [April 14, 2001] + Added checking the results of many instances of png_malloc() for NULL + +Version 1.0.11beta4 [April 20, 2001] + Undid the changes from version 1.0.11beta3. Added a check for NULL return + from user's malloc_fn(). + Removed some useless type casts of the NULL pointer. + Added makefile.netbsd + +Version 1.0.11 [April 27, 2001] + Revised makefile.netbsd + +Version 1.0.12beta1 [May 14, 2001] + Test for Windows platform in pngconf.h when including malloc.h (Emmanuel Blot) + Updated makefile.cygwin and handling of Cygwin's ALL_STATIC in pngconf.h + Added some never-to-be-executed code in pnggccrd.c to quiet compiler warnings. + Eliminated the png_error about apps using png_read|write_init(). Instead, + libpng will reallocate the png_struct and info_struct if they are too small. + This retains future binary compatibility for old applications written for + libpng-0.88 and earlier. + +Version 1.2.0beta1 [May 6, 2001] + Bumped DLLNUM to 2. + Re-enabled PNG_MNG_FEATURES_SUPPORTED and enabled PNG_ASSEMBLER_CODE_SUPPORTED + by default. + Added runtime selection of MMX features. + Added png_set_strip_error_numbers function and related macros. + +Version 1.2.0beta2 [May 7, 2001] + Finished merging 1.2.0beta1 with version 1.0.11 + Added a check for attempts to read or write PLTE in grayscale PNG datastreams. + +Version 1.2.0beta3 [May 17, 2001] + Enabled user memory function by default. + Modified png_create_struct so it passes user mem_ptr to user memory allocator. + Increased png_mng_features flag from png_byte to png_uint_32. + Bumped shared-library (so-number) and dll-number to 3. + +Version 1.2.0beta4 [June 23, 2001] + Check for missing profile length field in iCCP chunk and free chunk_data + in case of truncated iCCP chunk. + Bumped shared-library number to 3 in makefile.sgi and makefile.sggcc + Bumped dll-number from 2 to 3 in makefile.cygwin + Revised contrib/gregbook/rpng*-x.c to avoid a memory leak and to exit cleanly + if user attempts to run it on an 8-bit display. + Updated contrib/gregbook + Use png_malloc instead of png_zalloc to allocate palette in pngset.c + Updated makefile.ibmc + Added some typecasts to eliminate gcc 3.0 warnings. Changed prototypes + of png_write_oFFS width and height from png_uint_32 to png_int_32. + Updated example.c + Revised prototypes for png_debug_malloc and png_debug_free in pngtest.c + +Version 1.2.0beta5 [August 8, 2001] + Revised contrib/gregbook + Revised makefile.gcmmx + Revised pnggccrd.c to conditionally compile some thread-unsafe code only + when PNG_THREAD_UNSAFE_OK is defined. + Added tests to prevent pngwutil.c from writing a bKGD or tRNS chunk with + value exceeding 2^bit_depth-1 + Revised makefile.sgi and makefile.sggcc + Replaced calls to fprintf(stderr,...) with png_warning() in pnggccrd.c + Removed restriction that do_invert_mono only operate on 1-bit opaque files + +Version 1.2.0 [September 1, 2001] + Changed a png_warning() to png_debug() in pnggccrd.c + Fixed contrib/gregbook/rpng-x.c, rpng2-x.c to avoid crash with XFreeGC(). + +Version 1.2.1beta1 [October 19, 2001] + Revised makefile.std in contrib/pngminus + Include background_1 in png_struct regardless of gamma support. + Revised makefile.netbsd and makefile.macosx, added makefile.darwin. + Revised example.c to provide more details about using row_callback(). + +Version 1.2.1beta2 [October 25, 2001] + Added type cast to each NULL appearing in a function call, except for + WINCE functions. + Added makefile.so9. + +Version 1.2.1beta3 [October 27, 2001] + Removed type casts from all NULLs. + Simplified png_create_struct_2(). + +Version 1.2.1beta4 [November 7, 2001] + Revised png_create_info_struct() and png_creat_struct_2(). + Added error message if png_write_info() was omitted. + Type cast NULLs appearing in function calls when _NO_PROTO or + PNG_TYPECAST_NULL is defined. + +Version 1.2.1rc1 [November 24, 2001] + Type cast NULLs appearing in function calls except when PNG_NO_TYPECAST_NULL + is defined. + Changed typecast of "size" argument to png_size_t in pngmem.c calls to + the user malloc_fn, to agree with the prototype in png.h + Added a pop/push operation to pnggccrd.c, to preserve Eflag (Maxim Sobolev) + Updated makefile.sgi to recognize LIBPATH and INCPATH. + Updated various makefiles so "make clean" does not remove previous major + version of the shared library. + +Version 1.2.1rc2 [December 4, 2001] + Always allocate 256-entry internal palette, hist, and trans arrays, to + avoid out-of-bounds memory reference caused by invalid PNG datastreams. + Added a check for prefix_length > data_length in iCCP chunk handler. + +Version 1.2.1 [December 7, 2001] + None. + +Version 1.2.2beta1 [February 22, 2002] + Fixed a bug with reading the length of iCCP profiles (Larry Reeves). + Revised makefile.linux, makefile.gcmmx, and makefile.sgi to generate + libpng.a, libpng12.so (not libpng.so.3), and libpng12/png.h + Revised makefile.darwin to remove "-undefined suppress" option. + Added checks for gamma and chromaticity values over 21474.83, which exceed + the limit for PNG unsigned 32-bit integers when encoded. + Revised calls to png_create_read_struct() and png_create_write_struct() + for simpler debugging. + Revised png_zalloc() so zlib handles errors (uses PNG_FLAG_MALLOC_NULL_MEM_OK) + +Version 1.2.2beta2 [February 23, 2002] + Check chunk_length and idat_size for invalid (over PNG_MAX_UINT) lengths. + Check for invalid image dimensions in png_get_IHDR. + Added missing "fi;" in the install target of the SGI makefiles. + Added install-static to all makefiles that make shared libraries. + Always do gamma compensation when image is partially transparent. + +Version 1.2.2beta3 [March 7, 2002] + Compute background.gray and background_1.gray even when color_type is RGB + in case image gets reduced to gray later. + Modified shared-library makefiles to install pkgconfig/libpngNN.pc. + Export (with PNGAPI) png_zalloc, png_zfree, and png_handle_as_unknown + Removed unused png_write_destroy_info prototype from png.h + Eliminated incorrect use of width_mmx from pnggccrd.c in pixel_bytes == 8 case + Added install-shared target to all makefiles that make shared libraries. + Stopped a double free of palette, hist, and trans when not using free_me. + Added makefile.32sunu for Sun Ultra 32 and makefile.64sunu for Sun Ultra 64. + +Version 1.2.2beta4 [March 8, 2002] + Compute background.gray and background_1.gray even when color_type is RGB + in case image gets reduced to gray later (Jason Summers). + Relocated a misplaced /bin/rm in the "install-shared" makefile targets + Added PNG_1_0_X macro which can be used to build a 1.0.x-compatible library. + +Version 1.2.2beta5 [March 26, 2002] + Added missing PNGAPI to several function definitions. + Check for invalid bit_depth or color_type in png_get_IHDR(), and + check for missing PLTE or IHDR in png_push_read_chunk() (Matthias Clasen). + Revised iTXt support to accept NULL for lang and lang_key. + Compute gamma for color components of background even when color_type is gray. + Changed "()" to "{}" in scripts/libpng.pc.in. + Revised makefiles to put png.h and pngconf.h only in $prefix/include/libpngNN + Revised makefiles to make symlink to libpng.so.NN in addition to libpngNN.so + +Version 1.2.2beta6 [March 31, 2002] + +Version 1.0.13beta1 [March 31, 2002] + Prevent png_zalloc() from trying to memset memory that it failed to acquire. + Add typecasts of PNG_MAX_UINT in pngset_cHRM_fixed() (Matt Holgate). + Ensure that the right function (user or default) is used to free the + png_struct after an error in png_create_read_struct_2(). + +Version 1.2.2rc1 [April 7, 2002] + +Version 1.0.13rc1 [April 7, 2002] + Save the ebx register in pnggccrd.c (Sami Farin) + Add "mem_ptr = png_ptr->mem_ptr" in png_destroy_write_struct() (Paul Gardner). + Updated makefiles to put headers in include/libpng and remove old include/*.h. + +Version 1.2.2 [April 15, 2002] + +Version 1.0.13 [April 15, 2002] + Revised description of png_set_filter() in libpng.3/libpng.txt. + Revised makefile.netbsd and added makefile.neNNbsd and makefile.freebsd + +Version 1.0.13patch01 [April 17, 2002] + +Version 1.2.2patch01 [April 17, 2002] + Changed ${PNGMAJ}.${PNGVER} bug to ${PNGVER} in makefile.sgi and + makefile.sggcc + Fixed VER -> PNGVER typo in makefile.macosx and added install-static to + install + Added install: target to makefile.32sunu and makefile.64sunu + +Version 1.0.13patch03 [April 18, 2002] + +Version 1.2.2patch03 [April 18, 2002] + Revised 15 makefiles to link libpng.a to libpngNN.a and the include libpng + subdirectory to libpngNN subdirectory without the full pathname. + Moved generation of libpng.pc from "install" to "all" in 15 makefiles. + +Version 1.2.3rc1 [April 28, 2002] + Added install-man target to 15 makefiles (Dimitri Papadopolous-Orfanos). + Added $(DESTDIR) feature to 24 makefiles (Tim Mooney) + Fixed bug with $prefix, should be $(prefix) in makefile.hpux. + Updated cygwin-specific portion of pngconf.h and revised makefile.cygwin + Added a link from libpngNN.pc to libpng.pc in 15 makefiles. + Added links from include/libpngNN/*.h to include/*.h in 24 makefiles. + Revised makefile.darwin to make relative links without full pathname. + Added setjmp() at the end of png_create_*_struct_2() in case user forgets + to put one in their application. + Restored png_zalloc() and png_zfree() prototypes to version 1.2.1 and + removed them from module definition files. + +Version 1.2.3rc2 [May 1, 2002] + Fixed bug in reporting number of channels in pngget.c and pngset.c, + that was introduced in version 1.2.2beta5. + Exported png_zalloc(), png_zfree(), png_default_read(), png_default_write(), + png_default_flush(), and png_push_fill_buffer() and included them in + module definition files. + Added "libpng.pc" dependency to the "install-shared" target in 15 makefiles. + +Version 1.2.3rc3 [May 1, 2002] + Revised prototype for png_default_flush() + Remove old libpng.pc and libpngNN.pc before installing new ones. + +Version 1.2.3rc4 [May 2, 2002] + Typos in *.def files (png_default_read|write -> png_default_read|write_data) + In makefiles, changed rm libpng.NN.pc to rm libpngNN.pc + Added libpng-config and libpngNN-config and modified makefiles to install + them. + Changed $(MANPATH) to $(DESTDIR)$(MANPATH) in makefiles + Added "Win32 DLL VB" configuration to projects/msvc/libpng.dsp + +Version 1.2.3rc5 [May 11, 2002] + Changed "error" and "message" in prototypes to "error_message" and + "warning_message" to avoid namespace conflict. + Revised 15 makefiles to build libpng-config from libpng-config-*.in + Once more restored png_zalloc and png_zfree to regular nonexported form. + Restored png_default_read|write_data, png_default_flush, png_read_fill_buffer + to nonexported form, but with PNGAPI, and removed them from module def + files. + +Version 1.2.3rc6 [May 14, 2002] + Removed "PNGAPI" from png_zalloc() and png_zfree() in png.c + Changed "Gz" to "Gd" in projects/msvc/libpng.dsp and zlib.dsp. + Removed leftover libpng-config "sed" script from four makefiles. + Revised libpng-config creating script in 16 makefiles. + +Version 1.2.3 [May 22, 2002] + Revised libpng-config target in makefile.cygwin. + Removed description of png_set_mem_fn() from documentation. + Revised makefile.freebsd. + Minor cosmetic changes to 15 makefiles, e.g., $(DI) = $(DESTDIR)/$(INCDIR). + Revised projects/msvc/README.txt + Changed -lpng to -lpngNN in LDFLAGS in several makefiles. + +Version 1.2.4beta1 [May 24, 2002] + Added libpng.pc and libpng-config to "all:" target in 16 makefiles. + Fixed bug in 16 makefiles: $(DESTDIR)/$(LIBPATH) to $(DESTDIR)$(LIBPATH) + Added missing "\" before closing double quote in makefile.gcmmx. + Plugged various memory leaks; added png_malloc_warn() and png_set_text_2() + functions. + +Version 1.2.4beta2 [June 25, 2002] + Plugged memory leak of png_ptr->current_text (Matt Holgate). + Check for buffer overflow before reading CRC in pngpread.c (Warwick Allison) + Added -soname to the loader flags in makefile.dec, makefile.sgi, and + makefile.sggcc. + Added "test-installed" target to makefile.linux, makefile.gcmmx, + makefile.sgi, and makefile.sggcc. + +Version 1.2.4beta3 [June 28, 2002] + Plugged memory leak of row_buf in pngtest.c when there is a png_error(). + Detect buffer overflow in pngpread.c when IDAT is corrupted with extra data. + Added "test-installed" target to makefile.32sunu, makefile.64sunu, + makefile.beos, makefile.darwin, makefile.dec, makefile.macosx, + makefile.solaris, makefile.hpux, makefile.hpgcc, and makefile.so9. + +Version 1.2.4rc1 and 1.0.14rc1 [July 2, 2002] + Added "test-installed" target to makefile.cygwin and makefile.sco. + Revised pnggccrd.c to be able to back out version 1.0.x via PNG_1_0_X macro. + +Version 1.2.4 and 1.0.14 [July 8, 2002] + Changed png_warning() to png_error() when width is too large to process. + +Version 1.2.4patch01 [July 20, 2002] + Revised makefile.cygwin to use DLL number 12 instead of 13. + +Version 1.2.5beta1 [August 6, 2002] + Added code to contrib/gregbook/readpng2.c to ignore unused chunks. + Replaced toucan.png in contrib/gregbook (it has been corrupt since 1.0.11) + Removed some stray *.o files from contrib/gregbook. + Changed png_error() to png_warning() about "Too much data" in pngpread.c + and about "Extra compressed data" in pngrutil.c. + Prevent png_ptr->pass from exceeding 7 in png_push_finish_row(). + Updated makefile.hpgcc + Updated png.c and pnggccrd.c handling of return from png_mmx_support() + +Version 1.2.5beta2 [August 15, 2002] + Only issue png_warning() about "Too much data" in pngpread.c when avail_in + is nonzero. + Updated makefiles to install a separate libpng.so.3 with its own rpath. + +Version 1.2.5rc1 and 1.0.15rc1 [August 24, 2002] + Revised makefiles to not remove previous minor versions of shared libraries. + +Version 1.2.5rc2 and 1.0.15rc2 [September 16, 2002] + Revised 13 makefiles to remove "-lz" and "-L$(ZLIBLIB)", etc., from shared + library loader directive. + Added missing "$OBJSDLL" line to makefile.gcmmx. + Added missing "; fi" to makefile.32sunu. + +Version 1.2.5rc3 and 1.0.15rc3 [September 18, 2002] + Revised libpng-config script. + +Version 1.2.5 and 1.0.15 [October 3, 2002] + Revised makefile.macosx, makefile.darwin, makefile.hpgcc, and makefile.hpux, + and makefile.aix. + Relocated two misplaced PNGAPI lines in pngtest.c + +Version 1.2.6beta1 [October 22, 2002] + Commented out warning about uninitialized mmx_support in pnggccrd.c. + Changed "IBMCPP__" flag to "__IBMCPP__" in pngconf.h. + Relocated two more misplaced PNGAPI lines in pngtest.c + Fixed memory overrun bug in png_do_read_filler() with 16-bit datastreams, + introduced in version 1.0.2. + Revised makefile.macosx, makefile.dec, makefile.aix, and makefile.32sunu. + +Version 1.2.6beta2 [November 1, 2002] + Added libpng-config "--ldopts" output. + Added "AR=ar" and "ARFLAGS=rc" and changed "ar rc" to "$(AR) $(ARFLAGS)" + in makefiles. + +Version 1.2.6beta3 [July 18, 2004] + Reverted makefile changes from version 1.2.6beta2 and some of the changes + from version 1.2.6beta1; these will be postponed until version 1.2.7. + Version 1.2.6 is going to be a simple bugfix release. + Changed the one instance of "ln -sf" to "ln -f -s" in each Sun makefile. + Fixed potential overrun in pngerror.c by using strncpy instead of memcpy. + Added "#!/bin/sh" at the top of configure, for recognition of the + 'x' flag under Cygwin (Cosmin). + Optimized vacuous tests that silence compiler warnings, in png.c (Cosmin). + Added support for PNG_USER_CONFIG, in pngconf.h (Cosmin). + Fixed the special memory handler for Borland C under DOS, in pngmem.c + (Cosmin). + Removed some spurious assignments in pngrutil.c (Cosmin). + Replaced 65536 with 65536L, and 0xffff with 0xffffL, to silence warnings + on 16-bit platforms (Cosmin). + Enclosed shift op expressions in parentheses, to silence warnings (Cosmin). + Used proper type png_fixed_point, to avoid problems on 16-bit platforms, + in png_handle_sRGB() (Cosmin). + Added compression_type to png_struct, and optimized the window size + inside the deflate stream (Cosmin). + Fixed definition of isnonalpha(), in pngerror.c and pngrutil.c (Cosmin). + Fixed handling of unknown chunks that come after IDAT (Cosmin). + Allowed png_error() and png_warning() to work even if png_ptr == NULL + (Cosmin). + Replaced row_info->rowbytes with row_bytes in png_write_find_filter() + (Cosmin). + Fixed definition of PNG_LIBPNG_VER_DLLNUM (Simon-Pierre). + Used PNG_LIBPNG_VER and PNG_LIBPNG_VER_STRING instead of the hardcoded + values in png.c (Simon-Pierre, Cosmin). + Initialized png_libpng_ver[] with PNG_LIBPNG_VER_STRING (Simon-Pierre). + Replaced PNG_LIBPNG_VER_MAJOR with PNG_LIBPNG_VER_DLLNUM in png.rc + (Simon-Pierre). + Moved the definition of PNG_HEADER_VERSION_STRING near the definitions + of the other PNG_LIBPNG_VER_... symbols in png.h (Cosmin). + Relocated #ifndef PNGAPI guards in pngconf.h (Simon-Pierre, Cosmin). + Updated scripts/makefile.vc(a)win32 (Cosmin). + Updated the MSVC project (Simon-Pierre, Cosmin). + Updated the Borland C++ Builder project (Cosmin). + Avoided access to asm_flags in pngvcrd.c, if PNG_1_0_X is defined (Cosmin). + Commented out warning about uninitialized mmx_support in pngvcrd.c (Cosmin). + Removed scripts/makefile.bd32 and scripts/pngdef.pas (Cosmin). + Added extra guard around inclusion of Turbo C memory headers, in pngconf.h + (Cosmin). + Renamed projects/msvc/ to projects/visualc6/, and projects/borland/ to + projects/cbuilder5/ (Cosmin). + Moved projects/visualc6/png32ms.def to scripts/pngw32.def, + and projects/visualc6/png.rc to scripts/pngw32.rc (Cosmin). + Added projects/visualc6/pngtest.dsp; removed contrib/msvctest/ (Cosmin). + Changed line endings to DOS style in cbuilder5 and visualc6 files, even + in the tar.* distributions (Cosmin). + Updated contrib/visupng/VisualPng.dsp (Cosmin). + Updated contrib/visupng/cexcept.h to version 2.0.0 (Cosmin). + Added a separate distribution with "configure" and supporting files (Junichi). + +Version 1.2.6beta4 [July 28, 2004] + Added user ability to change png_size_t via a PNG_SIZE_T macro. + Added png_sizeof() and png_convert_size() functions. + Added PNG_SIZE_MAX (maximum value of a png_size_t variable. + Added check in png_malloc_default() for (size_t)size != (png_uint_32)size + which would indicate an overflow. + Changed sPLT failure action from png_error to png_warning and abandon chunk. + Changed sCAL and iCCP failures from png_error to png_warning and abandon. + Added png_get_uint_31(png_ptr, buf) function. + Added PNG_UINT_32_MAX macro. + Renamed PNG_MAX_UINT to PNG_UINT_31_MAX. + Made png_zalloc() issue a png_warning and return NULL on potential + overflow. + Turn on PNG_NO_ZALLOC_ZERO by default in version 1.2.x + Revised "clobber list" in pnggccrd.c so it will compile under gcc-3.4. + Revised Borland portion of png_malloc() to return NULL or issue + png_error() according to setting of PNG_FLAG_MALLOC_NULL_MEM_OK. + Added PNG_NO_SEQUENTIAL_READ_SUPPORTED macro to conditionally remove + sequential read support. + Added some "#if PNG_WRITE_SUPPORTED" blocks. + Added #ifdef to remove some redundancy in png_malloc_default(). + Use png_malloc instead of png_zalloc to allocate the pallete. + +Version 1.0.16rc1 and 1.2.6rc1 [August 4, 2004] + Fixed buffer overflow vulnerability in png_handle_tRNS() + Fixed integer arithmetic overflow vulnerability in png_read_png(). + Fixed some harmless bugs in png_handle_sBIT, etc, that would cause + duplicate chunk types to go undetected. + Fixed some timestamps in the -config version + Rearranged order of processing of color types in png_handle_tRNS(). + Added ROWBYTES macro to calculate rowbytes without integer overflow. + Updated makefile.darwin and removed makefile.macosx from scripts directory. + Imposed default one million column, one-million row limits on the image + dimensions, and added png_set_user_limits() function to override them. + Revised use of PNG_SET_USER_LIMITS_SUPPORTED macro. + Fixed wrong cast of returns from png_get_user_width|height_max(). + Changed some "keep the compiler happy" from empty statements to returns, + Revised libpng.txt to remove 1.2.x stuff from the 1.0.x distribution + +Version 1.0.16rc2 and 1.2.6rc2 [August 7, 2004] + Revised makefile.darwin and makefile.solaris. Removed makefile.macosx. + Revised pngtest's png_debug_malloc() to use png_malloc() instead of + png_malloc_default() which is not supposed to be exported. + Fixed off-by-one error in one of the conversions to PNG_ROWBYTES() in + pngpread.c. Bug was introduced in 1.2.6rc1. + Fixed bug in RGB to RGBX transformation introduced in 1.2.6rc1. + Fixed old bug in RGB to Gray transformation. + Fixed problem with 64-bit compilers by casting arguments to abs() + to png_int_32. + Changed "ln -sf" to "ln -f -s" in three makefiles (solaris, sco, so9). + Changed "HANDLE_CHUNK_*" to "PNG_HANDLE_CHUNK_*" (Cosmin) + Added "-@/bin/rm -f $(DL)/$(LIBNAME).so.$(PNGMAJ)" to 15 *NIX makefiles. + Added code to update the row_info->colortype in png_do_read_filler() (MSB). + +Version 1.0.16rc3 and 1.2.6rc3 [August 9, 2004] + Eliminated use of "abs()" in testing cHRM and gAMA values, to avoid + trouble with some 64-bit compilers. Created PNG_OUT_OF_RANGE() macro. + Revised documentation of png_set_keep_unknown_chunks(). + Check handle_as_unknown status in pngpread.c, as in pngread.c previously. + Moved "PNG_HANDLE_CHUNK_*" macros out of PNG_INTERNAL section of png.h + Added "rim" definitions for CONST4 and CONST6 in pnggccrd.c + +Version 1.0.16rc4 and 1.2.6rc4 [August 10, 2004] + Fixed mistake in pngtest.c introduced in 1.2.6rc2 (declaration of + "pinfo" was out of place). + +Version 1.0.16rc5 and 1.2.6rc5 [August 10, 2004] + Moved "PNG_HANDLE_CHUNK_*" macros out of PNG_ASSEMBLER_CODE_SUPPORTED + section of png.h where they were inadvertently placed in version rc3. + +Version 1.2.6 and 1.0.16 [August 15, 2004] + Revised pngtest so memory allocation testing is only done when PNG_DEBUG==1. + +Version 1.2.7beta1 [August 26, 2004] + Removed unused pngasmrd.h file. + Removed references to uu.net for archived files. Added references to + PNG Spec (second edition) and the PNG ISO/IEC Standard. + Added "test-dd" target in 15 makefiles, to run pngtest in DESTDIR. + Fixed bug with "optimized window size" in the IDAT datastream, that + causes libpng to write PNG files with incorrect zlib header bytes. + +Version 1.2.7beta2 [August 28, 2004] + Fixed bug with sCAL chunk and big-endian machines (David Munro). + Undid new code added in 1.2.6rc2 to update the color_type in + png_set_filler(). + Added png_set_add_alpha() that updates color type. + +Version 1.0.17rc1 and 1.2.7rc1 [September 4, 2004] + Revised png_set_strip_filler() to not remove alpha if color_type has alpha. + +Version 1.2.7 and 1.0.17 [September 12, 2004] + Added makefile.hp64 + Changed projects/msvc/png32ms.def to scripts/png32ms.def in makefile.cygwin + +Version 1.2.8beta1 [November 1, 2004] + Fixed bug in png_text_compress() that would fail to complete a large block. + Fixed bug, introduced in libpng-1.2.7, that overruns a buffer during + strip alpha operation in png_do_strip_filler(). + Added PNG_1_2_X definition in pngconf.h + Use #ifdef to comment out png_info_init in png.c and png_read_init in + pngread.c (as of 1.3.0) + +Version 1.2.8beta2 [November 2, 2004] + Reduce color_type to a nonalpha type after strip alpha operation in + png_do_strip_filler(). + +Version 1.2.8beta3 [November 3, 2004] + Revised definitions of PNG_MAX_UINT_32, PNG_MAX_SIZE, and PNG_MAXSUM + +Version 1.2.8beta4 [November 12, 2004] + Fixed (again) definition of PNG_LIBPNG_VER_DLLNUM in png.h (Cosmin). + Added PNG_LIBPNG_BUILD_PRIVATE in png.h (Cosmin). + Set png_ptr->zstream.data_type to Z_BINARY, to avoid unnecessary detection + of data type in deflate (Cosmin). + Deprecated but continue to support SPECIALBUILD and PRIVATEBUILD in favor of + PNG_LIBPNG_BUILD_SPECIAL_STRING and PNG_LIBPNG_BUILD_PRIVATE_STRING. + +Version 1.2.8beta5 [November 20, 2004] + Use png_ptr->flags instead of png_ptr->transformations to pass + PNG_STRIP_ALPHA info to png_do_strip_filler(), to preserve ABI + compatibility. + Revised handling of SPECIALBUILD, PRIVATEBUILD, + PNG_LIBPNG_BUILD_SPECIAL_STRING and PNG_LIBPNG_BUILD_PRIVATE_STRING. + +Version 1.2.8rc1 [November 24, 2004] + Moved handling of BUILD macros from pngconf.h to png.h + Added definition of PNG_LIBPNG_BASE_TYPE in png.h, inadvertently + omitted from beta5. + Revised scripts/pngw32.rc + Despammed mailing addresses by masking "@" with "at". + Inadvertently installed a supposedly faster test version of pngrutil.c + +Version 1.2.8rc2 [November 26, 2004] + Added two missing "\" in png.h + Change tests in pngread.c and pngpread.c to + if (png_ptr->transformations || (png_ptr->flags&PNG_FLAG_STRIP_ALPHA)) + png_do_read_transformations(png_ptr); + +Version 1.2.8rc3 [November 28, 2004] + Reverted pngrutil.c to version libpng-1.2.8beta5. + Added scripts/makefile.elf with supporting code in pngconf.h for symbol + versioning (John Bowler). + +Version 1.2.8rc4 [November 29, 2004] + Added projects/visualc7 (Simon-pierre). + +Version 1.2.8rc5 [November 29, 2004] + Fixed new typo in scripts/pngw32.rc + +Version 1.2.8 [December 3, 2004] + Removed projects/visualc7, added projects/visualc71. + +Version 1.2.9beta1 [February 21, 2006] + Initialized some structure members in pngwutil.c to avoid gcc-4.0.0 complaints + Revised man page and libpng.txt to make it clear that one should not call + png_read_end or png_write_end after png_read_png or png_write_png. + Updated references to png-mng-implement mailing list. + Fixed an incorrect typecast in pngrutil.c + Added PNG_NO_READ_SUPPORTED conditional for making a write-only library. + Added PNG_NO_WRITE_INTERLACING_SUPPORTED conditional. + Optimized alpha-inversion loops in pngwtran.c + Moved test for nonzero gamma outside of png_build_gamma_table() in pngrtran.c + Make sure num_trans is <= 256 before copying data in png_set_tRNS(). + Make sure num_palette is <= 256 before copying data in png_set_PLTE(). + Interchanged order of write_swap_alpha and write_invert_alpha transforms. + Added parentheses in the definition of PNG_LIBPNG_BUILD_TYPE (Cosmin). + Optimized zlib window flag (CINFO) in contrib/pngsuite/*.png (Cosmin). + Updated scripts/makefile.bc32 for Borland C++ 5.6 (Cosmin). + Exported png_get_uint_32, png_save_uint_32, png_get_uint_16, png_save_uint_16, + png_get_int_32, png_save_int_32, png_get_uint_31 (Cosmin). + Added type cast (png_byte) in png_write_sCAL() (Cosmin). + Fixed scripts/makefile.cygwin (Christian Biesinger, Cosmin). + Default iTXt support was inadvertently enabled. + +Version 1.2.9beta2 [February 21, 2006] + Check for png_rgb_to_gray and png_gray_to_rgb read transformations before + checking for png_read_dither in pngrtran.c + Revised checking of chromaticity limits to accommodate extended RGB + colorspace (John Denker). + Changed line endings in some of the project files to CRLF, even in the + "Unix" tar distributions (Cosmin). + Made png_get_int_32 and png_save_int_32 always available (Cosmin). + Updated scripts/pngos2.def, scripts/pngw32.def and projects/wince/png32ce.def + with the newly exported functions. + Eliminated distributions without the "configure" script. + Updated INSTALL instructions. + +Version 1.2.9beta3 [February 24, 2006] + Fixed CRCRLF line endings in contrib/visupng/VisualPng.dsp + Made libpng.pc respect EXEC_PREFIX (D. P. Kreil, J. Bowler) + Removed reference to pngasmrd.h from Makefile.am + Renamed CHANGES to ChangeLog. + Renamed LICENSE to COPYING. + Renamed ANNOUNCE to NEWS. + Created AUTHORS file. + +Version 1.2.9beta4 [March 3, 2006] + Changed definition of PKGCONFIG from $prefix/lib to $libdir in configure.ac + Reverted to filenames LICENSE and ANNOUNCE; removed AUTHORS and COPYING. + Removed newline from the end of some error and warning messages. + Removed test for sqrt() from configure.ac and configure. + Made swap tables in pngtrans.c PNG_CONST (Carlo Bramix). + Disabled default iTXt support that was inadvertently enabled in + libpng-1.2.9beta1. + Added "OS2" to list of systems that don't need underscores, in pnggccrd.c + Removed libpng version and date from *.c files. + +Version 1.2.9beta5 [March 4, 2006] + Removed trailing blanks from source files. + Put version and date of latest change in each source file, and changed + copyright year accordingly. + More cleanup of configure.ac, Makefile.am, and associated scripts. + Restored scripts/makefile.elf which was inadvertently deleted. + +Version 1.2.9beta6 [March 6, 2006] + Fixed typo (RELEASE) in configuration files. + +Version 1.2.9beta7 [March 7, 2006] + Removed libpng.vers and libpng.sym from libpng12_la_SOURCES in Makefile.am + Fixed inconsistent #ifdef's around png_sig_bytes() and png_set_sCAL_s() + in png.h. + Updated makefile.elf as suggested by debian. + Made cosmetic changes to some makefiles, adding LN_SF and other macros. + Made some makefiles accept "exec_prefix". + +Version 1.2.9beta8 [March 9, 2006] + Fixed some "#if defined (..." which should be "#if defined(..." + Bug introduced in libpng-1.2.8. + Fixed inconsistency in definition of png_default_read_data() + Restored blank that was lost from makefile.sggcc "clean" target in beta7. + Revised calculation of "current" and "major" for irix in ltmain.sh + Changed "mkdir" to "MKDIR_P" in some makefiles. + Separated PNG_EXPAND and PNG_EXPAND_tRNS. + Added png_set_expand_gray_1_2_4_to_8() and deprecated + png_set_gray_1_2_4_to_8() which also expands tRNS to alpha. + +Version 1.2.9beta9 [March 10, 2006] + Include "config.h" in pngconf.h when available. + Added some checks for NULL png_ptr or NULL info_ptr (timeless) + +Version 1.2.9beta10 [March 20, 2006] + Removed extra CR from contrib/visualpng/VisualPng.dsw (Cosmin) + Made pnggccrd.c PIC-compliant (Christian Aichinger). + Added makefile.mingw (Wolfgang Glas). + Revised pngconf.h MMX checking. + +Version 1.2.9beta11 [March 22, 2006] + Fixed out-of-order declaration in pngwrite.c that was introduced in beta9 + Simplified some makefiles by using LIBSO, LIBSOMAJ, and LIBSOVER macros. + +Version 1.2.9rc1 [March 31, 2006] + Defined PNG_USER_PRIVATEBUILD when including "pngusr.h" (Cosmin). + Removed nonsensical assertion check from pngtest.c (Cosmin). + +Version 1.2.9 [April 14, 2006] + Revised makefile.beos and added "none" selector in ltmain.sh + +Version 1.2.10beta1 [April 15, 2006] + Renamed "config.h" to "png_conf.h" and revised Makefile.am to add + -DPNG_BUILDING_LIBPNG to compile directive, and modified pngconf.h + to include png_conf.h only when PNG_BUILDING_LIBPNG is defined. + +Version 1.2.10beta2 [April 15, 2006] + Manually updated Makefile.in and configure. Changed png_conf.h.in + back to config.h. + +Version 1.2.10beta3 [April 15, 2006] + Change png_conf.h back to config.h in pngconf.h. + +Version 1.2.10beta4 [April 16, 2006] + Change PNG_BUILDING_LIBPNG to PNG_CONFIGURE_LIBPNG in config/Makefile*. + +Version 1.2.10beta5 [April 16, 2006] + Added a configure check for compiling assembler code in pnggccrd.c + +Version 1.2.10beta6 [April 17, 2006] + Revised the configure check for pnggccrd.c + Moved -DPNG_CONFIGURE_LIBPNG into @LIBPNG_DEFINES@ + Added @LIBPNG_DEFINES@ to arguments when building libpng.sym + +Version 1.2.10beta7 [April 18, 2006] + Change "exec_prefix=$prefix" to "exec_prefix=$(prefix)" in makefiles. + +Version 1.2.10rc1 [April 19, 2006] + Ensure pngconf.h doesn't define both PNG_USE_PNGGCCRD and PNG_USE_PNGVCRD + Fixed "LN_FS" typo in makefile.sco and makefile.solaris. + +Version 1.2.10rc2 [April 20, 2006] + Added a backslash between -DPNG_CONFIGURE_LIBPNG and -DPNG_NO_ASSEMBLER_CODE + in configure.ac and configure + Made the configure warning about versioned symbols less arrogant. + +Version 1.2.10rc3 [April 21, 2006] + Added a note in libpng.txt that png_set_sig_bytes(8) can be used when + writing an embedded PNG without the 8-byte signature. + Revised makefiles and configure to avoid making links to libpng.so.* + +Version 1.2.10 [April 23, 2006] + Reverted configure to "rc2" state. + +Version 1.2.11beta1 [May 31, 2006] + scripts/libpng.pc.in contained "configure" style version info and would + not work with makefiles. + The shared-library makefiles were linking to libpng.so.0 instead of + libpng.so.3 compatibility as the library. + +Version 1.2.11beta2 [June 2, 2006] + Increased sprintf buffer from 50 to 52 chars in pngrutil.c to avoid + buffer overflow. + Fixed bug in example.c (png_set_palette_rgb -> png_set_palette_to_rgb) + +Version 1.2.11beta3 [June 5, 2006] + Prepended "#! /bin/sh" to ltmail.sh and contrib/pngminus/*.sh (Cosmin). + Removed the accidental leftover Makefile.in~ (Cosmin). + Avoided potential buffer overflow and optimized buffer in + png_write_sCAL(), png_write_sCAL_s() (Cosmin). + Removed the include directories and libraries from CFLAGS and LDFLAGS + in scripts/makefile.gcc (Nelson A. de Oliveira, Cosmin). + +Version 1.2.11beta4 [June 6, 2006] + Allow zero-length IDAT chunks after the entire zlib datastream, but not + after another intervening chunk type. + +Version 1.0.19rc1, 1.2.11rc1 [June 13, 2006] + Deleted extraneous square brackets from [config.h] in configure.ac + +Version 1.0.19rc2, 1.2.11rc2 [June 14, 2006] + Added prototypes for PNG_INCH_CONVERSIONS functions to png.h + Revised INSTALL and autogen.sh + Fixed typo in several makefiles (-W1 should be -Wl) + Added typedef for png_int_32 and png_uint_32 on 64-bit systems. + +Version 1.0.19rc3, 1.2.11rc3 [June 15, 2006] + Removed the new typedefs for 64-bit systems (delay until version 1.4.0) + Added one zero element to png_gamma_shift[] array in pngrtran.c to avoid + reading out of bounds. + +Version 1.0.19rc4, 1.2.11rc4 [June 15, 2006] + Really removed the new typedefs for 64-bit systems. + +Version 1.0.19rc5, 1.2.11rc5 [June 22, 2006] + Removed png_sig_bytes entry from scripts/pngw32.def + +Version 1.0.19, 1.2.11 [June 26, 2006] + None. + +Version 1.0.20, 1.2.12 [June 27, 2006] + Really increased sprintf buffer from 50 to 52 chars in pngrutil.c to avoid + buffer overflow. + +Version 1.2.13beta1 [October 2, 2006] + Removed AC_FUNC_MALLOC from configure.ac + Work around Intel-Mac compiler bug by setting PNG_NO_MMX_CODE in pngconf.h + Change "logical" to "bitwise" throughout documentation. + Detect and fix attempt to write wrong iCCP profile length (CVE-2006-7244) + +Version 1.0.21, 1.2.13 [November 14, 2006] + Fix potential buffer overflow in sPLT chunk handler. + Fix Makefile.am to not try to link to noexistent files. + Check all exported functions for NULL png_ptr. + +Version 1.2.14beta1 [November 17, 2006] + Relocated three misplaced tests for NULL png_ptr. + Built Makefile.in with automake-1.9.6 instead of 1.9.2. + Build configure with autoconf-2.60 instead of 2.59 + +Version 1.2.14beta2 [November 17, 2006] + Added some typecasts in png_zalloc(). + +Version 1.2.14rc1 [November 20, 2006] + Changed "strtod" to "png_strtod" in pngrutil.c + +Version 1.0.22, 1.2.14 [November 27, 2006] + Added missing "$(srcdir)" in Makefile.am and Makefile.in + +Version 1.2.15beta1 [December 3, 2006] + Generated configure with autoconf-2.61 instead of 2.60 + Revised configure.ac to update libpng.pc and libpng-config. + +Version 1.2.15beta2 [December 3, 2006] + Always export MMX asm functions, just stubs if not building pnggccrd.c + +Version 1.2.15beta3 [December 4, 2006] + Add "png_bytep" typecast to profile while calculating length in pngwutil.c + +Version 1.2.15beta4 [December 7, 2006] + Added scripts/CMakeLists.txt + Changed PNG_NO_ASSEMBLER_CODE to PNG_NO_MMX_CODE in scripts, like 1.4.0beta + +Version 1.2.15beta5 [December 7, 2006] + Changed some instances of PNG_ASSEMBLER_* to PNG_MMX_* in pnggccrd.c + Revised scripts/CMakeLists.txt + +Version 1.2.15beta6 [December 13, 2006] + Revised scripts/CMakeLists.txt and configure.ac + +Version 1.2.15rc1 [December 18, 2006] + Revised scripts/CMakeLists.txt + +Version 1.2.15rc2 [December 21, 2006] + Added conditional #undef jmpbuf in pngtest.c to undo #define in AIX headers. + Added scripts/makefile.nommx + +Version 1.2.15rc3 [December 25, 2006] + Fixed shared library numbering error that was introduced in 1.2.15beta6. + +Version 1.2.15rc4 [December 27, 2006] + Fixed handling of rgb_to_gray when png_ptr->color.gray isn't set. + +Version 1.2.15rc5 [December 31, 2006] + Revised handling of rgb_to_gray. + +Version 1.2.15 [January 5, 2007] + Added some (unsigned long) typecasts in pngtest.c to avoid printing errors. + +Version 1.2.16beta1 [January 6, 2007] + Fix bugs in makefile.nommx + +Version 1.2.16beta2 [January 16, 2007] + Revised scripts/CMakeLists.txt + +Version 1.2.16 [January 31, 2007] + No changes. + +Version 1.2.17beta1 [March 6, 2007] + Revised scripts/CMakeLists.txt to install both shared and static libraries. + Deleted a redundant line from pngset.c. + +Version 1.2.17beta2 [April 26, 2007] + Relocated misplaced test for png_ptr == NULL in pngpread.c + Change "==" to "&" for testing PNG_RGB_TO_GRAY_ERR & PNG_RGB_TO_GRAY_WARN + flags. + Changed remaining instances of PNG_ASSEMBLER_* to PNG_MMX_* + Added pngerror() when write_IHDR fails in deflateInit2(). + Added "const" to some array declarations. + Mention examples of libpng usage in the libpng*.txt and libpng.3 documents. + +Version 1.2.17rc1 [May 4, 2007] + No changes. + +Version 1.2.17rc2 [May 8, 2007] + Moved several PNG_HAVE_* macros out of PNG_INTERNAL because applications + calling set_unknown_chunk_location() need them. + Changed transformation flag from PNG_EXPAND_tRNS to PNG_EXPAND in + png_set_expand_gray_1_2_4_to_8(). + Added png_ptr->unknown_chunk to hold working unknown chunk data, so it + can be free'ed in case of error. Revised unknown chunk handling in + pngrutil.c and pngpread.c to use this structure. + +Version 1.2.17rc3 [May 8, 2007] + Revised symbol-handling in configure script. + +Version 1.2.17rc4 [May 10, 2007] + Revised unknown chunk handling to avoid storing unknown critical chunks. + +Version 1.0.25 [May 15, 2007] +Version 1.2.17 [May 15, 2007] + Added "png_ptr->num_trans=0" before error return in png_handle_tRNS, + to eliminate a vulnerability (CVE-2007-2445, CERT VU#684664) + +Version 1.0.26 [May 15, 2007] +Version 1.2.18 [May 15, 2007] + Reverted the libpng-1.2.17rc3 change to symbol-handling in configure script + +Version 1.2.19beta1 [May 18, 2007] + Changed "const static" to "static PNG_CONST" everywhere, mostly undoing + change of libpng-1.2.17beta2. Changed other "const" to "PNG_CONST" + Changed some handling of unused parameters, to avoid compiler warnings. + "if (unused == NULL) return;" becomes "unused = unused". + +Version 1.2.19beta2 [May 18, 2007] + Only use the valid bits of tRNS value in png_do_expand() (Brian Cartier) + +Version 1.2.19beta3 [May 19, 2007] + Add some "png_byte" typecasts in png_check_keyword() and write new_key + instead of key in zTXt chunk (Kevin Ryde). + +Version 1.2.19beta4 [May 21, 2007] + Add png_snprintf() function and use it in place of sprint() for improved + defense against buffer overflows. + +Version 1.2.19beta5 [May 21, 2007] + Fixed png_handle_tRNS() to only use the valid bits of tRNS value. + Changed handling of more unused parameters, to avoid compiler warnings. + Removed some PNG_CONST in pngwutil.c to avoid compiler warnings. + +Version 1.2.19beta6 [May 22, 2007] + Added some #ifdef PNG_MMX_CODE_SUPPORTED where needed in pngvcrd.c + Added a special "_MSC_VER" case that defines png_snprintf to _snprintf + +Version 1.2.19beta7 [May 22, 2007] + Squelched png_squelch_warnings() in pnggccrd.c and added + an #ifdef PNG_MMX_CODE_SUPPORTED block around the declarations that caused + the warnings that png_squelch_warnings was squelching. + +Version 1.2.19beta8 [May 22, 2007] + Removed __MMX__ from test in pngconf.h. + +Version 1.2.19beta9 [May 23, 2007] + Made png_squelch_warnings() available via PNG_SQUELCH_WARNINGS macro. + Revised png_squelch_warnings() so it might work. + Updated makefile.sgcc and makefile.solaris; added makefile.solaris-x86. + +Version 1.2.19beta10 [May 24, 2007] + Resquelched png_squelch_warnings(), use "__attribute__((used))" instead. + +Version 1.4.0beta1 [April 20, 2006] + Enabled iTXt support (changes png_struct, thus requires so-number change). + Cleaned up PNG_ASSEMBLER_CODE_SUPPORTED vs PNG_MMX_CODE_SUPPORTED + Eliminated PNG_1_0_X and PNG_1_2_X macros. + Removed deprecated functions png_read_init, png_write_init, png_info_init, + png_permit_empty_plte, png_set_gray_1_2_4_to_8, png_check_sig, and + removed the deprecated macro PNG_MAX_UINT. + Moved "PNG_INTERNAL" parts of png.h and pngconf.h into pngintrn.h + Removed many WIN32_WCE #ifdefs (Cosmin). + Reduced dependency on C-runtime library when on Windows (Simon-Pierre) + Replaced sprintf() with png_sprintf() (Simon-Pierre) + +Version 1.4.0beta2 [April 20, 2006] + Revised makefiles and configure to avoid making links to libpng.so.* + Moved some leftover MMX-related defines from pngconf.h to pngintrn.h + Updated scripts/pngos2.def, pngw32.def, and projects/wince/png32ce.def + +Version 1.4.0beta3 [May 10, 2006] + Updated scripts/pngw32.def to comment out MMX functions. + Added PNG_NO_GET_INT_32 and PNG_NO_SAVE_INT_32 macros. + Scripts/libpng.pc.in contained "configure" style version info and would + not work with makefiles. + Revised pngconf.h and added pngconf.h.in, so makefiles and configure can + pass defines to libpng and applications. + +Version 1.4.0beta4 [May 11, 2006] + Revised configure.ac, Makefile.am, and many of the makefiles to write + their defines in pngconf.h. + +Version 1.4.0beta5 [May 15, 2006] + Added a missing semicolon in Makefile.am and Makefile.in + Deleted extraneous square brackets from configure.ac + +Version 1.4.0beta6 [June 2, 2006] + Increased sprintf buffer from 50 to 52 chars in pngrutil.c to avoid + buffer overflow. + Changed sonum from 0 to 1. + Removed unused prototype for png_check_sig() from png.h + +Version 1.4.0beta7 [June 16, 2006] + Exported png_write_sig (Cosmin). + Optimized buffer in png_handle_cHRM() (Cosmin). + Set pHYs = 2835 x 2835 pixels per meter, and added + sCAL = 0.352778e-3 x 0.352778e-3 meters, in pngtest.png (Cosmin). + Added png_set_benign_errors(), png_benign_error(), png_chunk_benign_error(). + Added typedef for png_int_32 and png_uint_32 on 64-bit systems. + Added "(unsigned long)" typecast on png_uint_32 variables in printf lists. + +Version 1.4.0beta8 [June 22, 2006] + Added demonstration of user chunk support in pngtest.c, to support the + public sTER chunk and a private vpAg chunk. + +Version 1.4.0beta9 [July 3, 2006] + Removed ordinals from scripts/pngw32.def and removed png_info_int and + png_set_gray_1_2_4_to_8 entries. + Inline call of png_get_uint_32() in png_get_uint_31(). + Use png_get_uint_31() to get vpAg width and height in pngtest.c + Removed WINCE and Netware projects. + Removed standalone Y2KINFO file. + +Version 1.4.0beta10 [July 12, 2006] + Eliminated automatic copy of pngconf.h to pngconf.h.in from configure and + some makefiles, because it was not working reliably. Instead, distribute + pngconf.h.in along with pngconf.h and cause configure and some of the + makefiles to update pngconf.h from pngconf.h.in. + Added pngconf.h to DEPENDENCIES in Makefile.am + +Version 1.4.0beta11 [August 19, 2006] + Removed AC_FUNC_MALLOC from configure.ac. + Added a warning when writing iCCP profile with mismatched profile length. + Patched pnggccrd.c to assemble on x86_64 platforms. + Moved chunk header reading into a separate function png_read_chunk_header() + in pngrutil.c. The chunk header (len+sig) is now serialized in a single + operation (Cosmin). + Implemented support for I/O states. Added png_ptr member io_state, and + functions png_get_io_chunk_name() and png_get_io_state() in pngget.c + (Cosmin). + Added png_get_io_chunk_name and png_get_io_state to scripts/*.def (Cosmin). + Renamed scripts/pngw32.* to scripts/pngwin.* (Cosmin). + Removed the include directories and libraries from CFLAGS and LDFLAGS + in scripts/makefile.gcc (Cosmin). + Used png_save_uint_32() to set vpAg width and height in pngtest.c (Cosmin). + Cast to proper type when getting/setting vpAg units in pngtest.c (Cosmin). + Added pngintrn.h to the Visual C++ projects (Cosmin). + Removed scripts/list (Cosmin). + Updated copyright year in scripts/pngwin.def (Cosmin). + Removed PNG_TYPECAST_NULL and used standard NULL consistently (Cosmin). + Disallowed the user to redefine png_size_t, and enforced a consistent use + of png_size_t across libpng (Cosmin). + Changed the type of png_ptr->rowbytes, PNG_ROWBYTES() and friends + to png_size_t (Cosmin). + Removed png_convert_size() and replaced png_sizeof with sizeof (Cosmin). + Removed some unnecessary type casts (Cosmin). + Changed prototype of png_get_compression_buffer_size() and + png_set_compression_buffer_size() to work with png_size_t instead of + png_uint_32 (Cosmin). + Removed png_memcpy_check() and png_memset_check() (Cosmin). + Fixed a typo (png_byte --> png_bytep) in libpng.3 and libpng.txt (Cosmin). + Clarified that png_zalloc() does not clear the allocated memory, + and png_zalloc() and png_zfree() cannot be PNGAPI (Cosmin). + Renamed png_mem_size_t to png_alloc_size_t, fixed its definition in + pngconf.h, and used it in all memory allocation functions (Cosmin). + Renamed pngintrn.h to pngpriv.h, added a comment at the top of the file + mentioning that the symbols declared in that file are private, and + updated the scripts and the Visual C++ projects accordingly (Cosmin). + Removed circular references between pngconf.h and pngconf.h.in in + scripts/makefile.vc*win32 (Cosmin). + Removing trailing '.' from the warning and error messages (Cosmin). + Added pngdefs.h that is built by makefile or configure, instead of + pngconf.h.in (Glenn). + Detect and fix attempt to write wrong iCCP profile length. + +Version 1.4.0beta12 [October 19, 2006] + Changed "logical" to "bitwise" in the documentation. + Work around Intel-Mac compiler bug by setting PNG_NO_MMX_CODE in pngconf.h + Add a typecast to stifle compiler warning in pngrutil.c + +Version 1.4.0beta13 [November 10, 2006] + Fix potential buffer overflow in sPLT chunk handler. + Fix Makefile.am to not try to link to noexistent files. + +Version 1.4.0beta14 [November 15, 2006] + Check all exported functions for NULL png_ptr. + +Version 1.4.0beta15 [November 17, 2006] + Relocated two misplaced tests for NULL png_ptr. + Built Makefile.in with automake-1.9.6 instead of 1.9.2. + Build configure with autoconf-2.60 instead of 2.59 + Add "install: all" in Makefile.am so "configure; make install" will work. + +Version 1.4.0beta16 [November 17, 2006] + Added a typecast in png_zalloc(). + +Version 1.4.0beta17 [December 4, 2006] + Changed "new_key[79] = '\0';" to "(*new_key)[79] = '\0';" in pngwutil.c + Add "png_bytep" typecast to profile while calculating length in pngwutil.c + +Version 1.4.0beta18 [December 7, 2006] + Added scripts/CMakeLists.txt + +Version 1.4.0beta19 [May 16, 2007] + Revised scripts/CMakeLists.txt + Rebuilt configure and Makefile.in with newer tools. + Added conditional #undef jmpbuf in pngtest.c to undo #define in AIX headers. + Added scripts/makefile.nommx + +Version 1.4.0beta20 [July 9, 2008] + Moved several PNG_HAVE_* macros from pngpriv.h to png.h because applications + calling set_unknown_chunk_location() need them. + Moved several macro definitions from pngpriv.h to pngconf.h + Merge with changes to the 1.2.X branch, as of 1.2.30beta04. + Deleted all use of the MMX assembler code and Intel-licensed optimizations. + Revised makefile.mingw + +Version 1.4.0beta21 [July 21, 2008] + Moved local array "chunkdata" from pngrutil.c to the png_struct, so + it will be freed by png_read_destroy() in case of a read error (Kurt + Christensen). + +Version 1.4.0beta22 [July 21, 2008] + Change "purpose" and "buffer" to png_ptr->chunkdata to avoid memory leaking. + +Version 1.4.0beta23 [July 22, 2008] + Change "chunkdata = NULL" to "png_ptr->chunkdata = NULL" several places in + png_decompress_chunk(). + +Version 1.4.0beta24 [July 25, 2008] + Change all remaining "chunkdata" to "png_ptr->chunkdata" in + png_decompress_chunk(), and remove "chunkdata" from parameter list. + Put a call to png_check_chunk_name() in png_read_chunk_header(). + Revised png_check_chunk_name() to reject a name with a lowercase 3rd byte. + Removed two calls to png_check_chunk_name() occuring later in the process. + Define PNG_NO_ERROR_NUMBERS by default in pngconf.h + +Version 1.4.0beta25 [July 30, 2008] + Added a call to png_check_chunk_name() in pngpread.c + Reverted png_check_chunk_name() to accept a name with a lowercase 3rd byte. + Added png_push_have_buffer() function to pngpread.c + Eliminated PNG_BIG_ENDIAN_SUPPORTED and associated png_get_* macros. + Made inline expansion of png_get_*() optional with PNG_USE_READ_MACROS. + Eliminated all PNG_USELESS_TESTS and PNG_CORRECT_PALETTE_SUPPORTED code. + Synced contrib directory and configure files with libpng-1.2.30beta06. + Eliminated no-longer-used pngdefs.h (but it's still built in the makefiles) + Relocated a misplaced "#endif /* PNG_NO_WRITE_FILTER */" in pngwutil.c + +Version 1.4.0beta26 [August 4, 2008] + Removed png_push_have_buffer() function in pngpread.c. It increased the + compiled library size slightly. + Changed "-Wall" to "-W -Wall" in the CFLAGS in all makefiles (Cosmin Truta) + Declared png_ptr "volatile" in pngread.c and pngwrite.c to avoid warnings. + Updated contrib/visupng/cexcept.h to version 2.0.1 + Added PNG_LITERAL_CHARACTER macros for #, [, and ]. + +Version 1.4.0beta27 [August 5, 2008] + Revised usage of PNG_LITERAL_SHARP in pngerror.c. + Moved newline character from individual png_debug messages into the + png_debug macros. + Allow user to #define their own png_debug, png_debug1, and png_debug2. + +Version 1.4.0beta28 [August 5, 2008] + Revised usage of PNG_LITERAL_SHARP in pngerror.c. + Added PNG_STRING_NEWLINE macro + +Version 1.4.0beta29 [August 9, 2008] + Revised usage of PNG_STRING_NEWLINE to work on non-ISO compilers. + Added PNG_STRING_COPYRIGHT macro. + Added non-ISO versions of png_debug macros. + +Version 1.4.0beta30 [August 14, 2008] + Added premultiplied alpha feature (Volker Wiendl). + +Version 1.4.0beta31 [August 18, 2008] + Moved png_set_premultiply_alpha from pngtrans.c to pngrtran.c + Removed extra crc check at the end of png_handle_cHRM(). Bug introduced + in libpng-1.4.0beta20. + +Version 1.4.0beta32 [August 19, 2008] + Added PNG_WRITE_FLUSH_SUPPORTED block around new png_flush() call. + Revised PNG_NO_STDIO version of png_write_flush() + +Version 1.4.0beta33 [August 20, 2008] + Added png_get|set_chunk_cache_max() to limit the total number of sPLT, + text, and unknown chunks that can be stored. + +Version 1.4.0beta34 [September 6, 2008] + Shortened tIME_string to 29 bytes in pngtest.c + Fixed off-by-one error introduced in png_push_read_zTXt() function in + libpng-1.2.30beta04/pngpread.c (Harald van Dijk) + +Version 1.4.0beta35 [October 6, 2008] + Changed "trans_values" to "trans_color". + Changed so-number from 0 to 14. Some OS do not like 0. + Revised makefile.darwin to fix shared library numbering. + Change png_set_gray_1_2_4_to_8() to png_set_expand_gray_1_2_4_to_8() + in example.c (debian bug report) + +Version 1.4.0beta36 [October 25, 2008] + Sync with tEXt vulnerability fix in libpng-1.2.33rc02. + +Version 1.4.0beta37 [November 13, 2008] + Added png_check_cHRM in png.c and moved checking from pngget.c, pngrutil.c, + and pngwrite.c + +Version 1.4.0beta38 [November 22, 2008] + Added check for zero-area RGB cHRM triangle in png_check_cHRM() and + png_check_cHRM_fixed(). + +Version 1.4.0beta39 [November 23, 2008] + Revised png_warning() to write its message on standard output by default + when warning_fn is NULL. + +Version 1.4.0beta40 [November 24, 2008] + Eliminated png_check_cHRM(). Instead, always use png_check_cHRM_fixed(). + In png_check_cHRM_fixed(), ensure white_y is > 0, and removed redundant + check for all-zero coordinates that is detected by the triangle check. + +Version 1.4.0beta41 [November 26, 2008] + Fixed string vs pointer-to-string error in png_check_keyword(). + Rearranged test expressions in png_check_cHRM_fixed() to avoid internal + overflows. + Added PNG_NO_CHECK_cHRM conditional. + +Version 1.4.0beta42, 43 [December 1, 2008] + Merge png_debug with version 1.2.34beta04. + +Version 1.4.0beta44 [December 6, 2008] + Removed redundant check for key==NULL before calling png_check_keyword() + to ensure that new_key gets initialized and removed extra warning + (Merge with version 1.2.34beta05 -- Arvan Pritchard). + +Version 1.4.0beta45 [December 9, 2008] + In png_write_png(), respect the placement of the filler bytes in an earlier + call to png_set_filler() (Jim Barry). + +Version 1.4.0beta46 [December 10, 2008] + Undid previous change and added PNG_TRANSFORM_STRIP_FILLER_BEFORE and + PNG_TRANSFORM_STRIP_FILLER_AFTER conditionals and deprecated + PNG_TRANSFORM_STRIP_FILLER (Jim Barry). + +Version 1.4.0beta47 [December 15, 2008] + Support for dithering was disabled by default, because it has never + been well tested and doesn't work very well. The code has not + been removed, however, and can be enabled by building libpng with + PNG_READ_DITHER_SUPPORTED defined. + +Version 1.4.0beta48 [February 14, 2009] + Added new exported function png_calloc(). + Combined several instances of png_malloc(); png_memset() into png_calloc(). + Removed prototype for png_freeptr() that was added in libpng-1.4.0beta24 + but was never defined. + +Version 1.4.0beta49 [February 28, 2009] + Added png_fileno() macro to pngconf.h, used in pngwio.c + Corrected order of #ifdef's in png_debug definition in png.h + Fixed bug introduced in libpng-1.4.0beta48 with the memset arguments + for pcal_params. + Fixed order of #ifdef directives in the png_debug defines in png.h + (bug introduced in libpng-1.2.34/1.4.0beta29). + Revised comments in png_set_read_fn() and png_set_write_fn(). + +Version 1.4.0beta50 [March 18, 2009] + Use png_calloc() instead of png_malloc() to allocate big_row_buf when + reading an interlaced file, to avoid a possible UMR. + Undid revision of PNG_NO_STDIO version of png_write_flush(). Users + having trouble with fflush() can build with PNG_NO_WRITE_FLUSH defined + or supply their own flush_fn() replacement. + Revised libpng*.txt and png.h documentation about use of png_write_flush() + and png_set_write_fn(). + Removed fflush() from pngtest.c. + Added "#define PNG_NO_WRITE_FLUSH" to contrib/pngminim/encoder/pngusr.h + +Version 1.4.0beta51 [March 21, 2009] + Removed new png_fileno() macro from pngconf.h . + +Version 1.4.0beta52 [March 27, 2009] + Relocated png_do_chop() ahead of building gamma tables in pngrtran.c + This avoids building 16-bit gamma tables unnecessarily. + Removed fflush() from pngtest.c. + Added "#define PNG_NO_WRITE_FLUSH" to contrib/pngminim/encoder/pngusr.h + Added a section on differences between 1.0.x and 1.2.x to libpng.3/libpng.txt + +Version 1.4.0beta53 [April 1, 2009] + Removed some remaining MMX macros from pngpriv.h + Fixed potential memory leak of "new_name" in png_write_iCCP() (Ralph Giles) + +Version 1.4.0beta54 [April 13, 2009] + Added "ifndef PNG_SKIP_SETJMP_CHECK" block in pngconf.h to allow + application code writers to bypass the check for multiple inclusion + of setjmp.h when they know that it is safe to ignore the situation. + Eliminated internal use of setjmp() in pngread.c and pngwrite.c + Reordered ancillary chunks in pngtest.png to be the same as what + pngtest now produces, and made some cosmetic changes to pngtest output. + Eliminated deprecated png_read_init_3() and png_write_init_3() functions. + +Version 1.4.0beta55 [April 15, 2009] + Simplified error handling in pngread.c and pngwrite.c by putting + the new png_read_cleanup() and png_write_cleanup() functions inline. + +Version 1.4.0beta56 [April 25, 2009] + Renamed "user_chunk_data" to "my_user_chunk_data" in pngtest.c to suppress + "shadowed declaration" warning from gcc-4.3.3. + Renamed "gamma" to "png_gamma" in pngset.c to avoid "shadowed declaration" + warning about a global "gamma" variable in math.h on some platforms. + +Version 1.4.0beta57 [May 2, 2009] + Removed prototype for png_freeptr() that was added in libpng-1.4.0beta24 + but was never defined (again). + Rebuilt configure scripts with autoconf-2.63 instead of 2.62 + Removed pngprefs.h and MMX from makefiles + +Version 1.4.0beta58 [May 14, 2009] + Changed pngw32.def to pngwin.def in makefile.mingw (typo was introduced + in beta57). + Clarified usage of sig_bit versus sig_bit_p in example.c (Vincent Torri) + +Version 1.4.0beta59 [May 15, 2009] + Reformated sources in libpng style (3-space intentation, comment format) + Fixed typo in libpng docs (PNG_FILTER_AVE should be PNG_FILTER_AVG) + Added sections about the git repository and our coding style to the + documentation + Relocated misplaced #endif in pngwrite.c, sCAL chunk handler. + +Version 1.4.0beta60 [May 19, 2009] + Conditionally compile png_read_finish_row() which is not used by + progressive readers. + Added contrib/pngminim/preader to demonstrate building minimal progressive + decoder, based on contrib/gregbook with embedded libpng and zlib. + +Version 1.4.0beta61 [May 20, 2009] + In contrib/pngminim/*, renamed "makefile.std" to "makefile", since there + is only one makefile in those directories, and revised the README files + accordingly. + More reformatting of comments, mostly to capitalize sentences. + +Version 1.4.0beta62 [June 2, 2009] + Added "#define PNG_NO_WRITE_SWAP" to contrib/pngminim/encoder/pngusr.h + and "define PNG_NO_READ_SWAP" to decoder/pngusr.h and preader/pngusr.h + Reformatted several remaining "else statement" into two lines. + Added a section to the libpng documentation about using png_get_io_ptr() + in configure scripts to detect the presence of libpng. + +Version 1.4.0beta63 [June 15, 2009] + Revised libpng*.txt and libpng.3 to mention calling png_set_IHDR() + multiple times and to specify the sample order in the tRNS chunk, + because the ISO PNG specification has a typo in the tRNS table. + Changed several PNG_UNKNOWN_CHUNK_SUPPORTED to + PNG_HANDLE_AS_UNKNOWN_SUPPORTED, to make the png_set_keep mechanism + available for ignoring known chunks even when not saving unknown chunks. + Adopted preference for consistent use of "#ifdef" and "#ifndef" versus + "#if defined()" and "if !defined()" where possible. + +Version 1.4.0beta64 [June 24, 2009] + Eliminated PNG_LEGACY_SUPPORTED code. + Moved the various unknown chunk macro definitions outside of the + PNG_READ|WRITE_ANCILLARY_CHUNK_SUPPORTED blocks. + +Version 1.4.0beta65 [June 26, 2009] + Added a reference to the libpng license in each file. + +Version 1.4.0beta66 [June 27, 2009] + Refer to the libpng license instead of the libpng license in each file. + +Version 1.4.0beta67 [July 6, 2009] + Relocated INVERT_ALPHA within png_read_png() and png_write_png(). + Added high-level API transform PNG_TRANSFORM_GRAY_TO_RGB. + Added an "xcode" project to the projects directory (Alam Arias). + +Version 1.4.0beta68 [July 19, 2009] + Avoid some tests in filter selection in pngwutil.c + +Version 1.4.0beta69 [July 25, 2009] + Simplified the new filter-selection test. This runs faster in the + common "PNG_ALL_FILTERS" and PNG_FILTER_NONE cases. + Removed extraneous declaration from the new call to png_read_gray_to_rgb() + (bug introduced in libpng-1.4.0beta67). + Fixed up xcode project (Alam Arias) + Added a prototype for png_64bit_product() in png.c + +Version 1.4.0beta70 [July 27, 2009] + Avoid a possible NULL dereference in debug build, in png_set_text_2(). + (bug introduced in libpng-0.95, discovered by Evan Rouault) + +Version 1.4.0beta71 [July 29, 2009] + Rebuilt configure scripts with autoconf-2.64. + +Version 1.4.0beta72 [August 1, 2009] + Replaced *.tar.lzma with *.tar.xz in distribution. Get the xz codec + from . + +Version 1.4.0beta73 [August 1, 2009] + Reject attempt to write iCCP chunk with negative embedded profile length + (JD Chen) (CVE-2009-5063). + +Version 1.4.0beta74 [August 8, 2009] + Changed png_ptr and info_ptr member "trans" to "trans_alpha". + +Version 1.4.0beta75 [August 21, 2009] + Removed an extra png_debug() recently added to png_write_find_filter(). + Fixed incorrect #ifdef in pngset.c regarding unknown chunk support. + +Version 1.4.0beta76 [August 22, 2009] + Moved an incorrectly located test in png_read_row() in pngread.c + +Version 1.4.0beta77 [August 27, 2009] + Removed lpXYZ.tar.bz2 (with CRLF), KNOWNBUG, libpng-x.y.z-KNOWNBUG.txt, + and the "noconfig" files from the distribution. + Moved CMakeLists.txt from scripts into the main libpng directory. + Various bugfixes and improvements to CMakeLists.txt (Philip Lowman) + +Version 1.4.0beta78 [August 31, 2009] + Converted all PNG_NO_* tests to PNG_*_SUPPORTED everywhere except pngconf.h + Eliminated PNG_NO_FREE_ME and PNG_FREE_ME_SUPPORTED macros. + Use png_malloc plus a loop instead of png_calloc() to initialize + row_pointers in png_read_png(). + +Version 1.4.0beta79 [September 1, 2009] + Eliminated PNG_GLOBAL_ARRAYS and PNG_LOCAL_ARRAYS; always use local arrays. + Eliminated PNG_CALLOC_SUPPORTED macro and always provide png_calloc(). + +Version 1.4.0beta80 [September 17, 2009] + Removed scripts/libpng.icc + Changed typecast of filler from png_byte to png_uint_16 in png_set_filler(). + (Dennis Gustafsson) + Fixed typo introduced in beta78 in pngtest.c ("#if def " should be "#ifdef ") + +Version 1.4.0beta81 [September 23, 2009] + Eliminated unused PNG_FLAG_FREE_* defines from pngpriv.h + Expanded TAB characters in pngrtran.c + Removed PNG_CONST from all "PNG_CONST PNG_CHNK" declarations to avoid + compiler complaints about doubly declaring things "const". + Changed all "#if [!]defined(X)" to "if[n]def X" where possible. + Eliminated unused png_ptr->row_buf_size + +Version 1.4.0beta82 [September 25, 2009] + Moved redundant IHDR checking into new png_check_IHDR() in png.c + and report all errors found in the IHDR data. + Eliminated useless call to png_check_cHRM() from pngset.c + +Version 1.4.0beta83 [September 25, 2009] + Revised png_check_IHDR() to eliminate bogus complaint about filter_type. + +Version 1.4.0beta84 [September 30, 2009] + Fixed some inconsistent indentation in pngconf.h + Revised png_check_IHDR() to add a test for width variable less than 32-bit. + +Version 1.4.0beta85 [October 1, 2009] + Revised png_check_IHDR() again, to check info_ptr members instead of + the contents of the returned parameters. + +Version 1.4.0beta86 [October 9, 2009] + Updated the "xcode" project (Alam Arias). + Eliminated a shadowed declaration of "pp" in png_handle_sPLT(). + +Version 1.4.0rc01 [October 19, 2009] + Trivial cosmetic changes. + +Version 1.4.0beta87 [October 30, 2009] + Moved version 1.4.0 back into beta. + +Version 1.4.0beta88 [October 30, 2009] + Revised libpng*.txt section about differences between 1.2.x and 1.4.0 + because most of the new features have now been ported back to 1.2.41 + +Version 1.4.0beta89 [November 1, 2009] + More bugfixes and improvements to CMakeLists.txt (Philip Lowman) + Removed a harmless extra png_set_invert_alpha() from pngwrite.c + Apply png_user_chunk_cache_max within png_decompress_chunk(). + Merged libpng-1.2.41.txt with libpng-1.4.0.txt where appropriate. + +Version 1.4.0beta90 [November 2, 2009] + Removed all remaining WIN32_WCE #ifdefs except those involving the + time.h "tm" structure + +Version 1.4.0beta91 [November 3, 2009] + Updated scripts/pngw32.def and projects/wince/png32ce.def + Copied projects/wince/png32ce.def to the scripts directory. + Added scripts/makefile.wce + Patched ltmain.sh for wince support. + Added PNG_CONVERT_tIME_SUPPORTED macro. + +Version 1.4.0beta92 [November 4, 2009] + Make inclusion of time.h in pngconf.h depend on PNG_CONVERT_tIME_SUPPORTED + Make #define PNG_CONVERT_tIME_SUPPORTED depend on PNG_WRITE_tIME_SUPPORTED + Revised libpng*.txt to describe differences from 1.2.40 to 1.4.0 (instead + of differences from 1.2.41 to 1.4.0) + +Version 1.4.0beta93 [November 7, 2009] + Added PNG_DEPSTRUCT, PNG_DEPRECATED, PNG_USE_RESULT, PNG_NORETURN, and + PNG_ALLOCATED macros to detect deprecated direct access to the + png_struct or info_struct members and other deprecated usage in + applications (John Bowler). + Updated scripts/makefile* to add "-DPNG_CONFIGURE_LIBPNG" to CFLAGS, + to prevent warnings about direct access to png structs by libpng + functions while building libpng. They need to be tested, especially + those using compilers other than gcc. + Updated projects/visualc6 and visualc71 with "/d PNG_CONFIGURE_LIBPNG". + They should work but still need to be updated to remove + references to pnggccrd.c or pngvcrd.c and ASM building. + Added README.txt to the beos, cbuilder5, netware, and xcode projects warning + that they need to be updated, to remove references to pnggccrd.c and + pngvcrd.c and to depend on pngpriv.h + Removed three direct references to read_info_ptr members in pngtest.c + that were detected by the new PNG_DEPSTRUCT macro. + Moved the png_debug macro definitions and the png_read_destroy(), + png_write_destroy() and png_far_to_near() prototypes from png.h + to pngpriv.h (John Bowler) + Moved the synopsis lines for png_read_destroy(), png_write_destroy() + png_debug(), png_debug1(), and png_debug2() from libpng.3 to libpngpf.3. + +Version 1.4.0beta94 [November 9, 2009] + Removed the obsolete, unused pnggccrd.c and pngvcrd.c files. + Updated CMakeLists.txt to add "-DPNG_CONFIGURE_LIBPNG" to the definitions. + Removed dependency of pngtest.o on pngpriv.h in the makefiles. + Only #define PNG_DEPSTRUCT, etc. in pngconf.h if not already defined. + +Version 1.4.0beta95 [November 10, 2009] + Changed png_check_sig() to !png_sig_cmp() in contrib programs. + Added -DPNG_CONFIGURE_LIBPNG to contrib/pngminm/*/makefile + Changed png_check_sig() to !png_sig_cmp() in contrib programs. + Corrected the png_get_IHDR() call in contrib/gregbook/readpng2.c + Changed pngminim/*/gather.sh to stop trying to remove pnggccrd.c and pngvcrd.c + Added dependency on pngpriv.h in contrib/pngminim/*/makefile + +Version 1.4.0beta96 [November 12, 2009] + Renamed scripts/makefile.wce to scripts/makefile.cegcc + Revised Makefile.am to use libpng.sys while building libpng.so + so that only PNG_EXPORT functions are exported. + Removed the deprecated png_check_sig() function/macro. + Removed recently removed function names from scripts/*.def + Revised pngtest.png to put chunks in the same order written by pngtest + (evidently the same change made in libpng-1.0beta54 was lost). + Added PNG_PRIVATE macro definition in pngconf.h for possible future use. + +Version 1.4.0beta97 [November 13, 2009] + Restored pngtest.png to the libpng-1.4.0beta7 version. + Removed projects/beos and netware.txt; no one seems to be supporting them. + Revised Makefile.in + +Version 1.4.0beta98 [November 13, 2009] + Added the "xcode" project to zip distributions, + Fixed a typo in scripts/pngwin.def introduced in beta97. + +Version 1.4.0beta99 [November 14, 2009] + Moved libpng-config.in and libpng.pc-configure.in out of the scripts + directory, to libpng-config.in and libpng-pc.in, respectively, and + modified Makefile.am and configure.ac accordingly. Now "configure" + needs nothing from the "scripts" directory. + Avoid redefining PNG_CONST in pngconf.h + +Version 1.4.0beta100 [November 14, 2009] + Removed ASM builds from projects/visualc6 and projects/visualc71 + Removed scripts/makefile.nommx and makefile.vcawin32 + Revised CMakeLists.txt to account for new location of libpng-config.in + and libpng-pc.in + Updated INSTALL to reflect removal and relocation of files. + +Version 1.4.0beta101 [November 14, 2009] + Restored the binary files (*.jpg, *.png, some project files) that were + accidentally deleted from the zip and 7z distributions when the xcode + project was added. + +Version 1.4.0beta102 [November 18, 2009] + Added libpng-config.in and libpng-pc.in to the zip and 7z distributions. + Fixed a typo in projects/visualc6/pngtest.dsp, introduced in beta100. + Moved descriptions of makefiles and other scripts out of INSTALL into + scripts/README.txt + Updated the copyright year in scripts/pngwin.rc from 2006 to 2009. + +Version 1.4.0beta103 [November 21, 2009] + Removed obsolete comments about ASM from projects/visualc71/README_zlib.txt + Align row_buf on 16-byte boundary in memory. + Restored the PNG_WRITE_FLUSH_AFTER_IEND_SUPPORTED guard around the call + to png_flush() after png_write_IEND(). See 1.4.0beta32, 1.4.0beta50 + changes above and 1.2.30, 1.2.30rc01 and rc03 in 1.2.41 CHANGES. Someone + needs this feature. + Make the 'png_jmpbuf' macro expand to a call that records the correct + longjmp function as well as returning a pointer to the setjmp + jmp_buf buffer, and marked direct access to jmpbuf 'deprecated'. + (John Bowler) + +Version 1.4.0beta104 [November 22, 2009] + Removed png_longjmp_ptr from scripts/*.def and libpng.3 + Rebuilt configure scripts with autoconf-2.65 + +Version 1.4.0beta105 [November 25, 2009] + Use fast integer PNG_DIVIDE_BY_255() or PNG_DIVIDE_BY_65535() + to accomplish alpha premultiplication when + PNG_READ_COMPOSITE_NODIV_SUPPORTED is defined. + Changed "/255" to "/255.0" in background calculations to make it clear + that the 255 is used as a double. + +Version 1.4.0beta106 [November 27, 2009] + Removed premultiplied alpha feature. + +Version 1.4.0beta107 [December 4, 2009] + Updated README + Added "#define PNG_NO_PEDANTIC_WARNINGS" in the libpng source files. + Removed "-DPNG_CONFIGURE_LIBPNG" from the makefiles and projects. + Revised scripts/makefile.netbsd, makefile.openbsd, and makefile.sco + to put png.h and pngconf.h in $prefix/include, like the other scripts, + instead of in $prefix/include/libpng. Also revised makefile.sco + to put them in $prefix/include/libpng15 instead of in + $prefix/include/libpng/libpng15. + +Version 1.4.0beta108 [December 11, 2009] + Removed leftover "-DPNG_CONFIGURE_LIBPNG" from contrib/pngminim/*/makefile + Relocated png_do_chop() to its original position in pngrtran.c; the + change in version 1.2.41beta08 caused transparency to be handled wrong + in some 16-bit datastreams (Yusaku Sugai). + +Version 1.4.0beta109 [December 13, 2009] + Added "bit_depth" parameter to the private png_build_gamma_table() function. + Pass bit_depth=8 to png_build_gamma_table() when bit_depth is 16 but the + PNG_16_TO_8 transform has been set, to avoid unnecessary build of 16-bit + tables. + +Version 1.4.0rc02 [December 20, 2009] + Declared png_cleanup_needed "volatile" in pngread.c and pngwrite.c + +Version 1.4.0rc03 [December 22, 2009] + Renamed libpng-pc.in back to libpng.pc.in and revised CMakeLists.txt + (revising the change in 1.4.0beta99) + +Version 1.4.0rc04 [December 25, 2009] + Swapped PNG_UNKNOWN_CHUNKS_SUPPORTED and PNG_HANDLE_AS_UNKNOWN_SUPPORTED + in pngset.c to be consistent with other changes in version 1.2.38. + +Version 1.4.0rc05 [December 25, 2009] + Changed "libpng-pc.in" to "libpng.pc.in" in configure.ac, configure, and + Makefile.in to be consistent with changes in libpng-1.4.0rc03 + +Version 1.4.0rc06 [December 29, 2009] + Reverted the gamma_table changes from libpng-1.4.0beta109. + Fixed some indentation errors. + +Version 1.4.0rc07 [January 1, 2010] + Revised libpng*.txt and libpng.3 about 1.2.x->1.4.x differences. + Use png_calloc() instead of png_malloc(); png_memset() in pngrutil.c + Update copyright year to 2010. + +Version 1.4.0rc08 [January 2, 2010] + Avoid deprecated references to png_ptr-io_ptr and png_ptr->error_ptr + in pngtest.c + +Version 1.4.0 [January 3, 2010] + No changes. + +Version 1.4.1beta01 [January 8, 2010] + Updated CMakeLists.txt for consistent indentation and to avoid an + unclosed if-statement warning (Philip Lowman). + Revised Makefile.am and Makefile.in to remove references to Y2KINFO, + KNOWNBUG, and libpng.la (Robert Schwebel). + Revised the makefiles to install the same files and symbolic + links as configure, except for libpng.la and libpng14.la. + Make png_set|get_compression_buffer_size() available even when + PNG_WRITE_SUPPORTED is not enabled. + Revised Makefile.am and Makefile.in to simplify their maintenance. + Revised scripts/makefile.linux to install a link to libpng14.so.14.1 + +Version 1.4.1beta02 [January 9, 2010] + Revised the rest of the makefiles to install a link to libpng14.so.14.1 + +Version 1.4.1beta03 [January 10, 2010] + Removed png_set_premultiply_alpha() from scripts/*.def + +Version 1.4.1rc01 [January 16, 2010] + No changes. + +Version 1.4.1beta04 [January 23, 2010] + Revised png_decompress_chunk() to improve speed and memory usage when + decoding large chunks. + Added png_set|get_chunk_malloc_max() functions. + +Version 1.4.1beta05 [January 26, 2010] + Relocated "int k" declaration in pngtest.c to minimize its scope. + +Version 1.4.1beta06 [January 28, 2010] + Revised png_decompress_chunk() to use a two-pass method suggested by + John Bowler. + +Version 1.4.1beta07 [February 6, 2010] + Folded some long lines in the source files. + Added defineable PNG_USER_CHUNK_CACHE_MAX, PNG_USER_CHUNK_MALLOC_MAX, + and a PNG_USER_LIMITS_SUPPORTED flag. + Eliminated use of png_ptr->irowbytes and reused the slot in png_ptr as + png_ptr->png_user_chunk_malloc_max. + Revised png_push_save_buffer() to do fewer but larger png_malloc() calls. + +Version 1.4.1beta08 [February 6, 2010] + Minor cleanup and updating of dates and copyright year. + +Version 1.5.0beta01 [February 7, 2010] + Moved declaration of png_struct into private pngstruct.h and png_info + into pnginfo.h + +Version 1.4.1beta09 and 1.5.0beta02 [February 7, 2010] + Reverted to original png_push_save_buffer() code. + +Version 1.4.1beta10 and 1.5.0beta03 [February 8, 2010] + Return allocated "old_buffer" in png_push_save_buffer() before + calling png_error(), to avoid a potential memory leak. + Updated configure script to use SO number 15. + +Version 1.5.0beta04 [February 9, 2010] + Removed malformed "incomplete struct declaration" of png_info from png.h + +Version 1.5.0beta05 [February 12, 2010] + Removed PNG_DEPSTRUCT markup in pngstruct.h and pnginfo.h, and undid the + linewrapping that it entailed. + Revised comments in pngstruct.h and pnginfo.h and added pointers to + the libpng license. + Changed PNG_INTERNAL to PNG_EXPOSE_INTERNAL_STRUCTURES + Removed the cbuilder5 project, which has not been updated to 1.4.0. + +Version 1.4.1beta12 and 1.5.0beta06 [February 14, 2010] + Fixed type declaration of png_get_chunk_malloc_max() in pngget.c (Daisuke + Nishikawa) + +Version 1.5.0beta07 [omitted] + +Version 1.5.0beta08 [February 19, 2010] + Changed #ifdef PNG_NO_STDIO_SUPPORTED to #ifdef PNG_NO_CONSOLE_IO_SUPPORTED + wherever png_snprintf() is used to construct error and warning messages. + Noted in scripts/makefile.mingw that it expects to be run under MSYS. + Removed obsolete unused MMX-querying support from contrib/gregbook + Added exported png_longjmp() function. + Removed the AIX redefinition of jmpbuf in png.h + Added -D_ALLSOURCE in configure.ac, makefile.aix, and CMakeLists.txt + when building on AIX. + +Version 1.5.0beta09 [February 19, 2010] + Removed -D_ALLSOURCE from configure.ac, makefile.aix, and CMakeLists.txt. + Changed the name of png_ptr->jmpbuf to png_ptr->png_jmpbuf in pngstruct.h + +Version 1.5.0beta10 [February 25, 2010] + Removed unused gzio.c from contrib/pngminim gather and makefile scripts + Removed replacement error handlers from contrib/gregbook. Because of + the new png_longjmp() function they are no longer needed. + +Version 1.5.0beta11 [March 6, 2010] + Removed checking for already-included setjmp.h from pngconf.h + Fixed inconsistent indentations and made numerous cosmetic changes. + Revised the "SEE ALSO" style of libpng.3, libpngpf.3, and png.5 + +Version 1.5.0beta12 [March 9, 2010] + Moved "#include png.h" inside pngpriv.h and removed "#include png.h" from + the source files, along with "#define PNG_EXPOSE_INTERNAL_STRUCTURES" + and "#define PNG_NO_PEDANTIC_WARNINGS" (John Bowler). + Created new pngdebug.h and moved debug definitions there. + +Version 1.5.0beta13 [March 10, 2010] + Protect pngstruct.h, pnginfo.h, and pngdebug.h from being included twice. + Revise the "#ifdef" blocks in png_inflate() so it will compile when neither + PNG_USER_CHUNK_MALLOC_MAX nor PNG_SET_CHUNK_MALLOC_LIMIT_SUPPORTED + is defined. + Removed unused png_measure_compressed_chunk() from pngpriv.h and libpngpf.3 + Moved the 'config.h' support from pngconf.h to pngpriv.h + Removed PNGAPI from the png_longjmp_ptr typedef. + Eliminated dependence of pngtest.c on the private pngdebug.h file. + Make all png_debug macros into *unterminated* statements or + expressions (i.e. a trailing ';' must always be added) and correct + the format statements in various png_debug messages. + +Version 1.5.0beta14 [March 14, 2010] + Removed direct access to png_ptr->io_ptr from the Windows code in pngtest.c + Revised Makefile.am to account for recent additions and replacements. + Corrected CE and OS/2 DEF files (scripts/png*def) for symbols removed and + added ordinal numbers to the Windows DEF file and corrected the duplicated + ordinal numbers on CE symbols that are commented out. + Added back in export symbols that can be present in the Windows build but + are disabled by default. + PNG_EXPORT changed to include an 'ordinal' field for DEF file generation. + PNG_CALLBACK added to make callback definitions uniform. PNGAPI split + into PNGCAPI (base C form), PNGAPI (exports) and PNGCBAPI (callbacks), + and appropriate changes made to all files. Cygwin builds re-hinged to + allow procedure call standard changes and to remove the need for the DEF + file (fixes build on Cygwin). + Enabled 'attribute' warnings that are relevant to library APIs and callbacks. + Changed rules for generation of the various symbol files and added a new + rule for a DEF file (which is also added to the distribution). + Updated the symbol file generation to stop it adding spurious spaces + to EOL (coming from preprocessor macro expansion). Added a facility + to join tokens in the output and rewrite *.dfn to use this. + Eliminated scripts/*.def in favor of libpng.def; updated projects/visualc71 + and removed scripts/makefile.cygwin. + Made PNG_BUILD_DLL safe: it can be set whenever a DLL is being built. + Removed the include of sys/types.h - apparently unnecessary now on the + platforms on which it happened (all but Mac OS and RISC OS). + Moved the Mac OS test into pngpriv.h (the only place it is used.) + +Version 1.5.0beta15 [March 17, 2010] + Added symbols.chk target to Makefile.am to validate the symbols in png.h + against the new DEF file scripts/symbols.def. + Changed the default DEF file back to pngwin.def. + Removed makefile.mingw. + Eliminated PNG_NO_EXTERN and PNG_ALL_EXTERN + +Version 1.5.0beta16 [April 1, 2010] + Make png_text_struct independent of PNG_iTXt_SUPPORTED, so that + fields are initialized in all configurations. The READ/WRITE + macros (PNG_(READ|WRITE)_iTXt_SUPPORTED) still function as + before to disable code to actually read or write iTXt chunks + and iTXt_SUPPORTED can be used to detect presence of either + read or write support (but it is probably better to check for + the one actually required - read or write.) + Combined multiple png_warning() calls for a single error. + Restored the macro definition of png_check_sig(). + +Version 1.5.0beta17 [April 17, 2010] + Added some "(long)" typecasts to printf calls in png_handle_cHRM(). + Documented the fact that png_set_dither() was disabled since libpng-1.4.0. + Reenabled png_set_dither() but renamed it to png_set_quantize() to reflect + more accurately what it actually does. At the same time, renamed + the PNG_DITHER_[RED,GREEN_BLUE]_BITS macros to + PNG_QUANTIZE_[RED,GREEN,BLUE]_BITS. + Added some "(long)" typecasts to printf calls in png_handle_cHRM(). + Freeze build-time only configuration in the build. + In all prior versions of libpng most configuration options + controlled by compiler #defines had to be repeated by the + application code that used libpng. This patch changes this + so that compilation options that can only be changed at build + time are frozen in the build. Options that are compiler + dependent (and those that are system dependent) are evaluated + each time - pngconf.h holds these. Options that can be changed + per-file in the application are in png.h. Frozen options are + in the new installed header file pnglibconf.h (John Bowler) + Removed the xcode project because it has not been updated to work + with libpng-1.5.0. + Removed the ability to include optional pngusr.h + +Version 1.5.0beta18 [April 17, 2010] + Restored the ability to include optional pngusr.h + Moved replacements for png_error() and png_warning() from the + contrib/pngminim project to pngerror.c, for use when warnings or + errors are disabled via PNG_NO_WARN or PNG_NO_ERROR_TEXT, to avoid + storing unneeded error/warning text. + Updated contrib/pngminim project to work with the new pnglibconf.h + Added some PNG_NO_* defines to contrib/pngminim/*/pngusr.h to save space. + +Version 1.5.0beta19 [April 24, 2010] + Added PNG_{READ,WRITE}_INT_FUNCTIONS_SUPPORTED. This allows the functions + to read and write ints to be disabled independently of PNG_USE_READ_MACROS, + which allows libpng to be built with the functions even though the default + is to use the macros - this allows applications to choose at app build + time whether or not to use macros (previously impossible because the + functions weren't in the default build.) + Changed Windows calling convention back to __cdecl for API functions. + For Windows/x86 platforms only: + __stdcall is no longer needed for Visual Basic, so libpng-1.5.0 uses + __cdecl throughout (both API functions and callbacks) on Windows/x86 + platforms. + Replaced visualc6 and visualc71 projects with new vstudio project + Relaxed the overly-restrictive permissions of some files. + +Version 1.5.0beta20 [April 24, 2010] + Relaxed more overly-restrictive permissions of some files. + +Version 1.5.0beta21 [April 27, 2010] + Removed some unwanted binary bytes and changed CRLF to NEWLINE in the new + vstudio project files, and some trivial editing of some files in the + scripts directory. + Set PNG_NO_READ_BGR, PNG_NO_IO_STATE, and PNG_NO_TIME_RFC1123 in + contrib/pngminim/decoder/pngusr.h to make a smaller decoder application. + +Version 1.5.0beta22 [April 28, 2010] + Fixed dependencies of GET_INT_32 - it does not require READ_INT_FUNCTIONS + because it has a macro equivalent. + Improved the options.awk script; added an "everything off" option. + Revised contrib/pngminim to use the "everything off" option in pngusr.dfa. + +Version 1.5.0beta23 [April 29, 2010] + Corrected PNG_REMOVED macro to take five arguments. + The macro was documented with two arguments (name,ordinal), however + the symbol checking .dfn files assumed five arguments. The five + argument form seems more useful so it is changed to that. + Corrected PNG_UNKNOWN_CHUNKS_SUPPORTED to PNG_HANDLE_AS_UNKNOWN_SUPPORTED + in gregbook/readpng2.c + Corrected protection of png_get_user_transform_ptr. The API declaration in + png.h is removed if both READ and WRITE USER_TRANSFORM are turned off + but was left defined in pngtrans.c + Added logunsupported=1 to cause pnglibconf.h to document disabled options. + This makes the installed pnglibconf.h more readable but causes no + other change. The intention is that users of libpng will find it + easier to understand if an API they need is missing. + Include png_reset_zstream() in png.c only when PNG_READ_SUPPORTED is defined. + Removed dummy_inflate.c from contrib/pngminim/encoder + Removed contrib/pngminim/*/gather.sh; gathering is now done in the makefile. + +Version 1.5.0beta24 [May 7, 2010] + Use bitwise "&" instead of arithmetic mod in pngrutil.c calculation of the + offset of the png_ptr->rowbuf pointer into png_ptr->big_row_buf. + Added more blank lines for readability. + +Version 1.5.0beta25 [June 18, 2010] + In pngpread.c: png_push_have_row() add check for new_row > height + Removed the now-redundant check for out-of-bounds new_row from example.c + +Version 1.5.0beta26 [June 18, 2010] + In pngpread.c: png_push_process_row() add check for too many rows. + +Version 1.5.0beta27 [June 18, 2010] + Removed the check added in beta25 as it is now redundant. + +Version 1.5.0beta28 [June 20, 2010] + Rewrote png_process_IDAT_data to consistently treat extra data as warnings + and handle end conditions more cleanly. + Removed the new (beta26) check in png_push_process_row(). + +Version 1.5.0beta29 [June 21, 2010] + Revised scripts/options.awk to work on Sunos (but still doesn't work) + Added comment to options.awk and contrib/pngminim/*/makefile to try nawk. + +Version 1.5.0beta30 [June 22, 2010] + Stop memory leak when reading a malformed sCAL chunk. + +Version 1.5.0beta31 [June 26, 2010] + Revised pngpread.c patch of beta28 to avoid an endless loop. + Removed some trailing blanks. + +Version 1.5.0beta32 [June 26, 2010] + Removed leftover scripts/options.patch and scripts/options.rej + +Version 1.5.0beta33 [July 6, 3010] + Made FIXED and FLOATING options consistent in the APIs they enable and + disable. Corrected scripts/options.awk to handle both command line + options and options specified in the .dfa files. + Changed char *msg to PNG_CONST char *msg in pngrutil.c + Make png_set_sRGB_gAMA_and_cHRM set values using either the fixed or + floating point APIs, but not both. + Reversed patch to remove error handler when the jmp_buf is stored in the + main program structure, not the png_struct. + The error handler is needed because the default handler in libpng will + always use the jmp_buf in the library control structure; this is never + set. The gregbook code is a useful example because, even though it + uses setjmp/longjmp, it shows how error handling can be implemented + using control mechanisms not directly supported by libpng. The + technique will work correctly with mechanisms such as Microsoft + Structure Exceptions or C++ exceptions (compiler willing - note that gcc + does not by default support interworking of C and C++ error handling.) + Reverted changes to call png_longjmp in contrib/gregbook where it is not + appropriate. If mainprog->jmpbuf is used by setjmp, then png_longjmp + cannot be used. + Changed "extern PNG_EXPORT" to "PNG_EXPORT" in png.h (Jan Nijtmans) + Changed "extern" to "PNG_EXTERN" in pngpriv.h (except for the 'extern "C" {') + +Version 1.5.0beta34 [July 12, 2010] + Put #ifndef PNG_EXTERN, #endif around the define PNG_EXTERN in pngpriv.h + +Version 1.5.0beta35 [July 24, 2010] + Removed some newly-added TAB characters. + Added -DNO_PNG_SNPRINTF to CFLAGS in scripts/makefile.dj2 + Moved the definition of png_snprintf() outside of the enclosing + #ifdef blocks in pngconf.h + +Version 1.5.0beta36 [July 29, 2010] + Patches by John Bowler: + Fixed point APIs are now supported throughout (no missing APIs). + Internal fixed point arithmetic support exists for all internal floating + point operations. + sCAL validates the floating point strings it is passed. + Safe, albeit rudimentary, Watcom support is provided by PNG_API_RULE==2 + Two new APIs exist to get the number of passes without turning on the + PNG_INTERLACE transform and to get the number of rows in the current + pass. + A new test program, pngvalid.c, validates the gamma code. + Errors in the 16-bit gamma correction (overflows) have been corrected. + cHRM chunk testing is done consistently (previously the floating point + API bypassed it, because the test really didn't work on FP, now the test + is performed on the actual values to be stored in the PNG file so it + works in the FP case too.) + Most floating point APIs now simply call the fixed point APIs after + converting the values to the fixed point form used in the PNG file. + The standard headers no longer include zlib.h, which is currently only + required for pngstruct.h and can therefore be internal. + Revised png_get_int_32 to undo the PNG two's complement representation of + negative numbers. + +Version 1.5.0beta37 [July 30, 2010] + Added a typecast in png_get_int_32() in png.h and pngrutil.h to avoid + a compiler warning. + Replaced oFFs 0,0 with oFFs -10,20 in pngtest.png + +Version 1.5.0beta38 [July 31, 2010] + Implemented remaining "_fixed" functions. + Corrected a number of recently introduced warnings mostly resulting from + safe but uncast assignments to shorter integers. Also added a zlib + VStudio release library project because the latest zlib Official Windows + build does not include such a thing. + Revised png_get_int_16() to be similar to png_get_int_32(). + Restored projects/visualc71. + +Version 1.5.0beta39 [August 2, 2010] + VisualC/GCC warning fixes, VisualC build fixes + The changes include support for function attributes in VC in addition to + those already present in GCC - necessary because without these some + warnings are unavoidable. Fixes include signed/unsigned fixes in + pngvalid and checks with gcc -Wall -Wextra -Wunused. + VC requires function attributes on function definitions as well as + declarations, PNG_FUNCTION has been added to enable this and the + relevant function definitions changed. + +Version 1.5.0beta40 [August 6, 2010] + Correct use of _WINDOWS_ in pngconf.h + Removed png_mem_ #defines; they are no longer used. + Added the sRGB chunk to pngtest.png + +Version 1.5.0beta41 [August 11, 2010] + Added the cHRM chunk to pngtest.png + Don't try to use version-script with cygwin/mingw. + Revised contrib/gregbook to work under cygwin/mingw. + +Version 1.5.0beta42 [August 18, 2010] + Add .dll.a to the list of extensions to be symlinked by Makefile.am (Yaakov) + Made all API functions that have const arguments and constant string + literal pointers declare them (John Bowler). + +Version 1.5.0beta43 [August 20, 2010] + Removed spurious tabs, shorten long lines (no source change) + Also added scripts/chkfmt to validate the format of all the files that can + reasonably be validated (it is suggested to run "make distclean" before + checking, because some machine generated files have long lines.) + Reformatted the CHANGES file to be more consistent throughout. + Made changes to address various issues identified by GCC, mostly + signed/unsigned and shortening problems on assignment but also a few + difficult to optimize (for GCC) loops. + Fixed non-GCC fixed point builds. In png.c a declaration was misplaced + in an earlier update. Fixed to declare the auto variables at the head. + Use cexcept.h in pngvalid.c. + +Version 1.5.0beta44 [August 24, 2010] + Updated CMakeLists.txt to use CMAKE_INSTALL_LIBDIR variable; useful for + installing libpng in /usr/lib64 (Funda Wang). + Revised CMakeLists.txt to put the man pages in share/man/man* not man/man* + Revised CMakeLists.txt to make symlinks instead of copies when installing. + Changed PNG_LIB_NAME from pngNN to libpngNN in CMakeLists.txt (Philip Lowman) + Implemented memory checks within pngvalid + Reformatted/rearranged pngvalid.c to assist use of progressive reader. + Check interlaced images in pngvalid + Clarified pngusr.h comments in pnglibconf.dfa + Simplified the pngvalid error-handling code now that cexcept.h is in place. + Implemented progressive reader in pngvalid.c for standard tests + Implemented progressive read in pngvalid.c gamma tests + Turn on progressive reader in pngvalid.c by default and tidy code. + +Version 1.5.0beta45 [August 26, 2010] + Added an explicit make step to projects/vstudio for pnglibconf.h + Also corrected zlib.vcxproj into which Visual Studio had introduced + what it calls an "authoring error". The change to make pnglibconf.h + simply copies the file; in the future it may actually generate the + file from scripts/pnglibconf.dfa as the other build systems do. + Changed pngvalid to work when floating point APIs are disabled + Renamed the prebuilt scripts/pnglibconf.h to scripts/pnglibconf.h.prebuilt + Supply default values for PNG_USER_PRIVATEBUILD and PNG_USER_DLLFNAME_POSTFIX + in pngpriv.h in case the user neglected to define them in their pngusr.h + +Version 1.5.0beta46 [August 28, 2010] + Added new private header files to libpng_sources in CMakeLists.txt + Added PNG_READ_16BIT, PNG_WRITE_16BIT, and PNG_16BIT options. + Added reference to scripts/pnglibconf.h.prebuilt in the visualc71 project. + +Version 1.5.0beta47 [September 11, 2010] + Fixed a number of problems with 64-bit compilation reported by Visual + Studio 2010 (John Bowler). + +Version 1.5.0beta48 [October 4, 2010] + Updated CMakeLists.txt (Philip Lowman). + Revised autogen.sh to recognize and use $AUTOCONF, $AUTOMAKE, $AUTOHEADER, + $AUTOPOINT, $ACLOCAL and $LIBTOOLIZE + Fixed problem with symbols creation in Makefile.am which was assuming that + all versions of ccp write to standard output by default (Martin Banky). The + bug was introduced in libpng-1.2.9beta5. + Removed unused mkinstalldirs. + +Version 1.5.0beta49 [October 8, 2010] + Undid Makefile.am revision of 1.5.0beta48. + +Version 1.5.0beta50 [October 14, 2010] + Revised Makefile.in to account for mkinstalldirs being removed. + Added some "(unsigned long)" typecasts in printf statements in pngvalid.c. + Suppressed a compiler warning in png_handle_sPLT(). + Check for out-of-range text compression mode in png_set_text(). + +Version 1.5.0beta51 [October 15, 2010] + Changed embedded dates to "(PENDING RELEASE) in beta releases (and future + rc releases) to minimize the difference between releases. + +Version 1.5.0beta52 [October 16, 2010] + Restored some of the embedded dates (in png.h, png.c, documentation, etc.) + +Version 1.5.0beta53 [October 18, 2010] + Updated INSTALL to mention using "make maintainer-clean" and to remove + obsolete statement about a custom ltmain.sh + Disabled "color-tests" by default in Makefile.am so it will work with + automake versions earlier than 1.11.1 + Use document name "libpng-manual.txt" instead of "libpng-.txt" + to simplify version differences. + Removed obsolete remarks about setjmp handling from INSTALL. + Revised and renamed the typedef in png.h and png.c that was designed + to catch library and header mismatch. + +Version 1.5.0beta54 [November 10, 2010] + Require 48 bytes, not 64 bytes, for big_row_buf in overflow checks. + Used a consistent structure for the pngget.c functions. + +Version 1.5.0beta55 [November 21, 2010] + Revised png_get_uint_32, png_get_int_32, png_get_uint_16 (Cosmin) + Moved reading of file signature into png_read_sig (Cosmin) + Fixed atomicity of chunk header serialization (Cosmin) + Added test for io_state in pngtest.c (Cosmin) + Added "#!/bin/sh" at the top of contrib/pngminim/*/gather.sh scripts. + Changes to remove gcc warnings (John Bowler) + Certain optional gcc warning flags resulted in warnings in libpng code. + With these changes only -Wconversion and -Wcast-qual cannot be turned on. + Changes are trivial rearrangements of code. -Wconversion is not possible + for pngrutil.c (because of the widespread use of += et al on variables + smaller than (int) or (unsigned int)) and -Wcast-qual is not possible + with pngwio.c and pngwutil.c because the 'write' callback and zlib + compression both fail to declare their input buffers with 'const'. + +Version 1.5.0beta56 [December 7, 2010] + Added the private PNG_UNUSED() macro definition in pngpriv.h. + Added some commentary about PNG_EXPORT in png.h and pngconf.h + Revised PNG_EXPORT() macro and added PNG_EXPORTA() macro, with the + objective of simplifying and improving the cosmetic appearance of png.h. + Fixed some incorrect "=" macro names in pnglibconf.dfa + Included documentation of changes in 1.5.0 from 1.4.x in libpng-manual.txt + +Version 1.5.0beta57 [December 9, 2010] + Documented the pngvalid gamma error summary with additional comments and + print statements. + Improved missing symbol handling in checksym.awk; symbols missing in both + the old and new files can now be optionally ignored, treated as errors + or warnings. + Removed references to pngvcrd.c and pnggccrd.c from the vstudio project. + Updated "libpng14" to "libpng15" in the visualc71 project. + Enabled the strip16 tests in pngvalid.` + Don't display test results (except PASS/FAIL) when running "make test". + Instead put them in pngtest-log.txt + Added "--with-zprefix=" to configure.ac + Updated the prebuilt configuration files to autoconf version 2.68 + +Version 1.5.0beta58 [December 19, 2010] + Fixed interlace image handling and add test cases (John Bowler) + Fixed the clean rule in Makefile.am to remove pngtest-log.txt + Made minor changes to work around warnings in gcc 3.4 + +Version 1.5.0rc01 [December 27, 2010] + No changes. + +Version 1.5.0rc02 [December 27, 2010] + Eliminated references to the scripts/*.def files in project/visualc71. + +Version 1.5.0rc03 [December 28, 2010] + Eliminated scripts/*.def and revised Makefile.am accordingly + +Version 1.5.0rc04 [December 29, 2010] + Fixed bug in background transformation handling in pngrtran.c (it was + looking for the flag in png_ptr->transformations instead of in + png_ptr->flags) (David Raymond). + +Version 1.5.0rc05 [December 31, 2010] + Fixed typo in a comment in CMakeLists.txt (libpng14 => libpng15) (Cosmin) + +Version 1.5.0rc06 [January 4, 2011] + Changed the new configure option "zprefix=string" to "zlib-prefix=string" + +Version 1.5.0rc07 [January 4, 2011] + Updated copyright year. + +Version 1.5.0 [January 6, 2011] + No changes. + +version 1.5.1beta01 [January 8, 2011] + Added description of png_set_crc_action() to the manual. + Added a note in the manual that the type of the iCCP profile was changed + from png_charpp to png_bytepp in png_get_iCCP(). This change happened + in version 1.5.0beta36 but is not noted in the CHANGES. Similarly, + it was changed from png_charpp to png_const_bytepp in png_set_iCCP(). + Ensure that png_rgb_to_gray ignores palette mapped images, if libpng + internally happens to call it with one, and fixed a failure to handle + palette mapped images correctly. This fixes CVE-2690. + +Version 1.5.1beta02 [January 14, 2011] + Fixed a bug in handling of interlaced images (bero at arklinux.org). + Updated CMakeLists.txt (Clifford Yapp) + +Version 1.5.1beta03 [January 14, 2011] + Fixed typecasting of some png_debug() statements (Cosmin) + +Version 1.5.1beta04 [January 16, 2011] + Updated documentation of png_set|get_tRNS() (Thomas Klausner). + Mentioned in the documentation that applications must #include "zlib.h" + if they need access to anything in zlib.h, and that a number of + macros such as png_memset() are no longer accessible by applications. + Corrected pngvalid gamma test "sample" function to access all of the color + samples of each pixel, instead of sampling the red channel three times. + Prefixed variable names index, div, exp, gamma with "png_" to avoid "shadow" + warnings, and (mistakenly) changed png_exp() to exp(). + +Version 1.5.1beta05 [January 16, 2011] + Changed variable names png_index, png_div, png_exp, and png_gamma to + char_index, divisor, exp_b10, and gamma_val, respectively, and + changed exp() back to png_exp(). + +Version 1.5.1beta06 [January 20, 2011] + Prevent png_push_crc_skip() from hanging while reading an unknown chunk + or an over-large compressed zTXt chunk with the progressive reader. + Eliminated more GCC "shadow" warnings. + Revised png_fixed() in png.c to avoid compiler warning about reaching the + end without returning anything. + +Version 1.5.1beta07 [January 22, 2011] + In the manual, describe the png_get_IHDR() arguments in the correct order. + Added const_png_structp and const_png_infop types, and used them in + prototypes for most png_get_*() functions. + +Version 1.5.1beta08 [January 23, 2011] + Added png_get_io_chunk_type() and deprecated png_get_io_chunk_name() + Added synopses for the IO_STATE functions and other missing synopses + to the manual. Removed the synopses from libpngpf.3 because they + were out of date and no longer useful. Better information can be + obtained by reading the prototypes and comments in pngpriv.h + Attempted to fix cpp on Solaris with S. Studio 12 cc, fix build + Added a make macro DFNCPP that is a CPP that will accept the tokens in + a .dfn file and adds configure stuff to test for such a CPP. ./configure + should fail if one is not available. + Corrected const_png_ in png.h to png_const_ to avoid polluting the namespace. + Added png_get_current_row_number and png_get_current_pass_number for the + benefit of the user transform callback. + Added png_process_data_pause and png_process_data_skip for the benefit of + progressive readers that need to stop data processing or want to optimize + skipping of unread data (e.g., if the reader marks a chunk to be skipped.) + +Version 1.5.1beta09 [January 24, 2011] + Enhanced pngvalid, corrected an error in gray_to_rgb, corrected doc error. + pngvalid contains tests of transforms, which tests are currently disabled + because they are incompletely tested. gray_to_rgb was failing to expand + the bit depth for smaller bit depth images; this seems to be a long + standing error and resulted, apparently, in invalid output + (CVE-2011-0408, CERT VU#643140). The documentation did not accurately + describe what libpng really does when converting RGB to gray. + +Version 1.5.1beta10 [January 27, 2010] + Fixed incorrect examples of callback prototypes in the manual, that were + introduced in libpng-1.0.0. + In addition the order of the png_get_uint macros with respect to the + relevant function definitions has been reversed. This helps the + preprocessing of the symbol files be more robust. Furthermore, the + symbol file preprocessing now uses -DPNG_NO_USE_READ_MACROS even when + the library may actually be built with PNG_USE_READ_MACROS; this stops + the read macros interfering with the symbol file format. + Made the manual, synopses, and function prototypes use the function + argument names file_gamma, int_file_gamma, and srgb_intent consistently. + +Version 1.5.1beta11 [January 28, 2011] + Changed PNG_UNUSED from "param=param;" to "{if(param){}}". + Corrected local variable type in new API png_process_data_skip() + The type was self-evidently incorrect but only causes problems on 64-bit + architectures. + Added transform tests to pngvalid and simplified the arguments. + +Version 1.5.1rc01 [January 29, 2011] + No changes. + +Version 1.5.1rc02 [January 31, 2011] + Added a request in the manual that applications do not use "png_" or + "PNG_" to begin any of their own symbols. + Changed PNG_UNUSED to "(void)param;" and updated the commentary in pngpriv.h + +Version 1.5.1 [February 3, 2011] + No changes. + +Version 1.5.2beta01 [February 13, 2011] + More -Wshadow fixes for older gcc compilers. Older gcc versions apparently + check formal parameters names in function declarations (as well as + definitions) to see if they match a name in the global namespace. + Revised PNG_EXPORTA macro to not use an empty parameter, to accommodate the + old VisualC++ preprocessor. + Turned on interlace handling in png_read_png(). + Fixed gcc pendantic warnings. + Handle longjmp in Cygwin. + Fixed png_get_current_row_number() in the interlaced case. + Cleaned up ALPHA flags and transformations. + Implemented expansion to 16 bits. + +Version 1.5.2beta02 [February 19, 2011] + Fixed mistake in the descriptions of user read_transform and write_transform + function prototypes in the manual. The row_info struct is png_row_infop. + Reverted png_get_current_row_number() to previous (1.5.2beta01) behavior. + Corrected png_get_current_row_number documentation + Fixed the read/write row callback documentation. + This documents the current behavior, where the callback is called after + every row with information pertaining to the next row. + +Version 1.5.2beta03 [March 3, 2011] + Fixed scripts/makefile.vcwin32 + Updated contrib/pngsuite/README to add the word "modify". + Define PNG_ALLOCATED to blank when _MSC_VER<1300. + +Version 1.5.2rc01 [March 19, 2011] + Define remaining attributes to blank when MSC_VER<1300. + ifdef out mask arrays in pngread.c when interlacing is not supported. + +Version 1.5.2rc02 [March 22, 2011] + Added a hint to try CPP=/bin/cpp if "cpp -E" fails in scripts/pnglibconf.mak + and in contrib/pngminim/*/makefile, eg., on SunOS 5.10, and removed "strip" + from the makefiles. + Fixed a bug (present since libpng-1.0.7) that makes png_handle_sPLT() fail + to compile when PNG_NO_POINTER_INDEXING is defined (Chubanov Kirill) + +Version 1.5.2rc03 [March 24, 2011] + Don't include standard header files in png.h while building the symbol table, + to avoid cpp failure on SunOS (introduced PNG_BUILDING_SYMBOL_TABLE macro). + +Version 1.5.2 [March 31, 2011] + No changes. + +Version 1.5.3beta01 [April 1, 2011] + Re-initialize the zlib compressor before compressing non-IDAT chunks. + Added API functions (png_set_text_compression_level() and four others) to + set parameters for zlib compression of non-IDAT chunks. + +Version 1.5.3beta02 [April 3, 2011] + Updated scripts/symbols.def with new API functions. + Only compile the new zlib re-initializing code when text or iCCP is + supported, using PNG_WRITE_COMPRESSED_TEXT_SUPPORTED macro. + Improved the optimization of the zlib CMF byte (see libpng-1.2.6beta03). + Optimize the zlib CMF byte in non-IDAT compressed chunks + +Version 1.5.3beta03 [April 16, 2011] + Fixed gcc -ansi -pedantic compile. A strict ANSI system does not have + snprintf, and the "__STRICT_ANSI__" detects that condition more reliably + than __STDC__ (John Bowler). + Removed the PNG_PTR_NORETURN attribute because it too dangerous. It tells + the compiler that a user supplied callback (the error handler) does not + return, yet there is no guarantee in practice that the application code + will correctly implement the error handler because the compiler only + issues a warning if there is a mistake (John Bowler). + Removed the no-longer-used PNG_DEPSTRUCT macro. + Updated the zlib version to 1.2.5 in the VStudio project. + Fixed 64-bit builds where png_uint_32 is smaller than png_size_t in + pngwutil.c (John Bowler). + Fixed bug with stripping the filler or alpha channel when writing, that + was introduced in libpng-1.5.2beta01 (bug report by Andrew Church). + +Version 1.5.3beta04 [April 27, 2011] + Updated pngtest.png with the new zlib CMF optimization. + Cleaned up conditional compilation code and of background/gamma handling + Internal changes only except a new option to avoid compiling the + png_build_grayscale_palette API (which is not used at all internally.) + The main change is to move the transform tests (READ_TRANSFORMS, + WRITE_TRANSFORMS) up one level to the caller of the APIs. This avoids + calls to spurious functions if all transforms are disabled and slightly + simplifies those functions. Pngvalid modified to handle this. + A minor change is to stop the strip_16 and expand_16 interfaces from + disabling each other; this allows the future alpha premultiplication + code to use 16-bit intermediate values while still producing 8-bit output. + png_do_background and png_do_gamma have been simplified to take a single + pointer to the png_struct rather than pointers to every item required + from the png_struct. This makes no practical difference to the internal + code. + A serious bug in the pngvalid internal routine 'standard_display_init' has + been fixed - this failed to initialize the red channel and accidentally + initialized the alpha channel twice. + Changed png_struct jmp_buf member name from png_jmpbuf to tmp_jmpbuf to + avoid a possible clash with the png_jmpbuf macro on some platforms. + +Version 1.5.3beta05 [May 6, 2011] + Added the "_POSIX_SOURCE" feature test macro to ensure libpng sees the + correct API. _POSIX_SOURCE is defined in pngpriv.h, pngtest.c and + pngvalid.c to ensure that POSIX conformant systems disable non-POSIX APIs. + Removed png_snprintf and added formatted warning messages. This change adds + internal APIs to allow png_warning messages to have parameters without + requiring the host OS to implement snprintf. As a side effect the + dependency of the tIME-supporting RFC1132 code on stdio is removed and + PNG_NO_WARNINGS does actually work now. + Pass "" instead of '\0' to png_default_error() in png_err(). This mistake + was introduced in libpng-1.2.20beta01. This fixes CVE-2011-2691. + Added PNG_WRITE_OPTIMIZE_CMF_SUPPORTED macro to make the zlib "CMF" byte + optimization configureable. + IDAT compression failed if preceded by a compressed text chunk (bug + introduced in libpng-1.5.3beta01-02). This was because the attempt to + reset the zlib stream in png_write_IDAT happened after the first IDAT + chunk had been deflated - much too late. In this change internal + functions were added to claim/release the z_stream and, hopefully, make + the code more robust. Also deflateEnd checking is added - previously + libpng would ignore an error at the end of the stream. + +Version 1.5.3beta06 [May 8, 2011] + Removed the -D_ALL_SOURCE from definitions for AIX in CMakeLists.txt + Implemented premultiplied alpha support: png_set_alpha_mode API + +Version 1.5.3beta07 [May 11, 2011] + Added expand_16 support to the high level interface. + Added named value and 'flag' gamma support to png_set_gamma. Made a minor + change from the previous (unreleased) ABI/API to hide the exact value used + for Macs - it's not a good idea to embed this in the ABI! + Moved macro definitions for PNG_HAVE_IHDR, PNG_HAVE_PLTE, and PNG_AFTER_IDAT + from pngpriv.h to png.h because they must be visible to applications + that call png_set_unknown_chunks(). + Check for up->location !PNG_AFTER_IDAT when writing unknown chunks + before IDAT. + +Version 1.5.3beta08 [May 16, 2011] + Improved "pngvalid --speed" to exclude more of pngvalid from the time. + Documented png_set_alpha_mode(), other changes in libpng.3/libpng-manual.txt + The cHRM chunk now sets the defaults for png_set_rgb_to_gray() (when negative + parameters are supplied by the caller), while in the absence of cHRM + sRGB/Rec 709 values are still used. This introduced a divide-by-zero + bug in png_handle_cHRM(). + The bKGD chunk no longer overwrites the background value set by + png_set_background(), allowing the latter to be used before the file + header is read. It never performed any useful function to override + the default anyway. + Added memory overwrite and palette image checks to pngvalid.c + Previously palette image code was poorly checked. Since the transformation + code has a special palette path in most cases this was a severe weakness. + Minor cleanup and some extra checking in pngrutil.c and pngrtran.c. When + expanding an indexed image, always expand to RGBA if transparency is + present. + +Version 1.5.3beta09 [May 17, 2011] + Reversed earlier 1.5.3 change of transformation order; move png_expand_16 + back where it was. The change doesn't work because it requires 16-bit + gamma tables when the code only generates 8-bit ones. This fails + silently; the libpng code just doesn't do any gamma correction. Moving + the tests back leaves the old, inaccurate, 8-bit gamma calculations, but + these are clearly better than none! + +Version 1.5.3beta10 [May 20, 2011] + + png_set_background() and png_expand_16() did not work together correctly. + This problem is present in 1.5.2; if png_set_background is called with + need_expand false and the matching 16 bit color libpng erroneously just + treats it as an 8-bit color because of where png_do_expand_16 is in the + transform list. This simple fix reduces the supplied colour to 8-bits, + so it gets smashed, but this is better than the current behavior. + Added tests for expand16, more fixes for palette image tests to pngvalid. + Corrects the code for palette image tests and disables attempts to + validate palette colors. + +Version 1.5.3rc01 [June 3, 2011] + No changes. + +Version 1.5.3rc02 [June 8, 2011] + Fixed uninitialized memory read in png_format_buffer() (Bug report by + Frank Busse, CVE-2011-2501, related to CVE-2004-0421). + +Version 1.5.3beta11 [June 11, 2011] + Fixed png_handle_sCAL which is broken in 1.5. This fixes CVE 2011-2692. + Added sCAL to pngtest.png + Revised documentation about png_set_user_limits() to say that it also affects + png writing. + Revised handling of png_set_user_limits() so that it can increase the + limit beyond the PNG_USER_WIDTH|HEIGHT_MAX; previously it could only + reduce it. + Make the 16-to-8 scaling accurate. Dividing by 256 with no rounding is + wrong (high by one) 25% of the time. Dividing by 257 with rounding is + wrong in 128 out of 65536 cases. Getting the right answer all the time + without division is easy. + Added "_SUPPORTED" to the PNG_WRITE_CUSTOMIZE_ZTXT_COMPRESSION macro. + Added projects/owatcom, an IDE project for OpenWatcom to replace + scripts/makefile.watcom. This project works with OpenWatcom 1.9. The + IDE autogenerates appropriate makefiles (libpng.mk) for batch processing. + The project is configurable, unlike the Visual Studio project, so long + as the developer has an awk. + Changed png_set_gAMA to limit the gamma value range so that the inverse + of the stored value cannot overflow the fixed point representation, + and changed other things OpenWatcom warns about. + Revised pngvalid.c to test PNG_ALPHA_MODE_SUPPORTED correctly. This allows + pngvalid to build when ALPHA_MODE is not supported, which is required if + it is to build on libpng 1.4. + Removed string/memory macros that are no longer used and are not + necessarily fully supportable, particularly png_strncpy and png_snprintf. + Added log option to pngvalid.c and attempted to improve gamma messages. + +Version 1.5.3 [omitted] + People found the presence of a beta release following an rc release + to be confusing; therefore we bump the version to libpng-1.5.4beta01 + and there will be no libpng-1.5.3 release. + +Version 1.5.4beta01 [June 14, 2011] + Made it possible to undefine PNG_READ_16_TO_8_ACCURATE_SCALE_SUPPORTED + to get the same (inaccurate) output as libpng-1.5.2 and earlier. + Moved definitions of PNG_HAVE_IHDR, PNG_AFTER_IDAT, and PNG_HAVE_PLTE + outside of an unknown-chunk block in png.h because they are also + needed for other uses. + +Version 1.5.4beta02 [June 14, 2011] + Fixed and clarified LEGACY 16-to-8 scaling code. + Added png_set_chop_16() API, to match inaccurate results from previous + libpng versions. + Removed the ACCURATE and LEGACY options (they are no longer useable) + Use the old scaling method for background if png_set_chop_16() was + called. + Made png_set_chop_16() API removeable by disabling PNG_CHOP_16_TO_8_SUPPORTED + +Version 1.5.4beta03 [June 15, 2011] + Fixed a problem in png_do_expand_palette() exposed by optimization in + 1.5.3beta06 + Also removed a spurious and confusing "trans" member ("trans") from png_info. + The palette expand optimization prevented expansion to an intermediate RGBA + form if tRNS was present but alpha was marked to be stripped; this exposed + a check for tRNS in png_do_expand_palette() which is inconsistent with the + code elsewhere in libpng. + Correction to the expand_16 code; removed extra instance of + png_set_scale_16_to_8 from pngpriv.h + +Version 1.5.4beta04 [June 16, 2011] + Added a missing "#ifdef PNG_READ_BACKGROUND_SUPPORTED/#endif" in pngrtran.c + Added PNG_TRANSFORM_CHOP_16 to the high-level read transforms. + Made PNG_READ_16_TO_8_ACCURATE_SCALE configurable again. If this is + not enabled, png_set_strip_16() and png_do_scale_16_to_8() aren't built. + Revised contrib/visupng, gregbook, and pngminim to demonstrate chop_16_to_8 + +Version 1.5.4beta05 [June 16, 2011] + Renamed png_set_strip_16() to png_set_scale_16() and renamed + png_set_chop_16() to png_set_strip(16) in an attempt to minimize the + behavior changes between libpng14 and libpng15. + +Version 1.5.4beta06 [June 18, 2011] + Fixed new bug that was causing both strip_16 and scale_16 to be applied. + +Version 1.5.4beta07 [June 19, 2011] + Fixed pngvalid, simplified macros, added checking for 0 in sCAL. + The ACCURATE scale macro is no longer defined in 1.5 - call the + png_scale_16_to_8 API. Made sure that PNG_READ_16_TO_8 is still defined + if the png_strip_16_to_8 API is present. png_check_fp_number now + maintains some state so that positive, negative and zero values are + identified. sCAL uses these to be strictly spec conformant. + +Version 1.5.4beta08 [June 23, 2011] + Fixed pngvalid if ACCURATE_SCALE is defined. + Updated scripts/pnglibconf.h.prebuilt. + +Version 1.5.4rc01 [June 30, 2011] + Define PNG_ALLOCATED to "restrict" only if MSC_VER >= 1400. + +Version 1.5.4 [July 7, 2011] + No changes. + +Version 1.5.5beta01 [July 13, 2011] + Fixed some typos and made other minor changes in the manual. + Updated contrib/pngminus/makefile.std (Samuli Souminen) + +Version 1.5.5beta02 [July 14, 2011] + Revised Makefile.am and Makefile.in to look in the right directory for + pnglibconf.h.prebuilt + +Version 1.5.5beta03 [July 27, 2011] + Enabled compilation with g++ compiler. This compiler does not recognize + the file extension, so it always compiles with C++ rules. Made minor + changes to pngrutil.c to cast results where C++ expects it but C does not. + Minor editing of libpng.3 and libpng-manual.txt. + +Version 1.5.5beta04 [July 29, 2011] + Revised CMakeLists.txt (Clifford Yapp) + Updated commentary about the png_rgb_to_gray() default coefficients + in the manual and in pngrtran.c + +Version 1.5.5beta05 [August 17, 2011] + Prevent unexpected API exports from non-libpng DLLs on Windows. The "_DLL" + is removed from the test of whether a DLL is being built (this erroneously + caused the libpng APIs to be marked as DLL exports in static builds under + Microsoft Visual Studio). Almost all of the libpng building configuration + is moved from pngconf.h to pngpriv.h, but PNG_DLL_EXPORT remains in + pngconf.h, though, so that it is colocated with the import definition (it + is no longer used anywhere in the installed headers). The VStudio project + definitions have been cleaned up: "_USRDLL" has been removed from the + static library builds (this was incorrect), and PNG_USE_DLL has been added + to pngvalid to test the functionality (pngtest does not supply it, + deliberately). The spurious "_EXPORTS" has been removed from the + libpng build (all these errors were a result of copy/paste between project + configurations.) + Added new types and internal functions for CIE RGB end point handling to + pngpriv.h (functions yet to be implemented). + +Version 1.5.5beta06 [August 26, 2011] + Ensure the CMAKE_LIBRARY_OUTPUT_DIRECTORY is set in CMakeLists.txt + (Clifford Yap) + Fixes to rgb_to_gray and cHRM XYZ APIs (John Bowler): + The rgb_to_gray code had errors when combined with gamma correction. + Some pixels were treated as true grey when they weren't and such pixels + and true grey ones were not gamma corrected (the original value of the + red component was used instead). APIs to get and set cHRM using color + space end points have been added and the rgb_to_gray code that defaults + based on cHRM, and the divide-by-zero bug in png_handle_cHRM (CERT + VU#477046, CVE-2011-3328, introduced in 1.5.4) have been corrected. + A considerable number of tests has been added to pngvalid for the + rgb_to_gray transform. + Arithmetic errors in rgb_to_gray whereby the calculated gray value was + truncated to the bit depth rather than rounded have been fixed except in + the 8-bit non-gamma-corrected case (where consistency seems more important + than correctness.) The code still has considerable inaccuracies in the + 8-bit case because 8-bit linear arithmetic is used. + +Version 1.5.5beta07 [September 7, 2011] + Added "$(ARCH)" option to makefile.darwin + Added SunOS support to configure.ac and Makefile.am + Changed png_chunk_benign_error() to png_warning() in png.c, in + png_XYZ_from_xy_checked(). + +Version 1.5.5beta08 [September 10, 2011] + Fixed 64-bit compilation errors (gcc). The errors fixed relate + to conditions where types that are 32 bits in the GCC 32-bit + world (uLong and png_size_t) become 64 bits in the 64-bit + world. This produces potential truncation errors which the + compiler correctly flags. + Relocated new HAVE_SOLARIS_LD definition in configure.ac + Constant changes for 64-bit compatibility (removal of L suffixes). The + 16-bit cases still use "L" as we don't have a 16-bit test system. + +Version 1.5.5rc01 [September 15, 2011] + Removed "L" suffixes in pngpriv.h + +Version 1.5.5 [September 22, 2011] + No changes. + +Version 1.5.6beta01 [September 22, 2011] + Fixed some 64-bit type conversion warnings in pngrtran.c + Moved row_info from png_struct to a local variable. + The various interlace mask arrays have been made into arrays of + bytes and made PNG_CONST and static (previously some arrays were + marked PNG_CONST and some weren't). + Additional checks have been added to the transform code to validate the + pixel depths after the transforms on both read and write. + Removed some redundant code from pngwrite.c, in png_destroy_write_struct(). + Changed chunk reading/writing code to use png_uint_32 instead of png_byte[4]. + This removes the need to allocate temporary strings for chunk names on + the stack in the read/write code. Unknown chunk handling still uses the + string form because this is exposed in the API. + +Version 1.5.6beta02 [September 26, 2011] + Added a note in the manual the png_read_update_info() must be called only + once with a particular info_ptr. + Fixed a typo in the definition of the new PNG_STRING_FROM_CHUNK(s,c) macro. + +Version 1.5.6beta03 [September 28, 2011] + Revised test-pngtest.sh to report FAIL when pngtest fails. + Added "--strict" option to pngtest, to report FAIL when the failure is + only because the resulting valid files are different. + Revised CMakeLists.txt to work with mingw and removed some material from + CMakeLists.txt that is no longer useful in libpng-1.5. + +Version 1.5.6beta04 [October 5, 2011] + Fixed typo in Makefile.in and Makefile.am ("-M Wl" should be "-M -Wl")." + +Version 1.5.6beta05 [October 12, 2011] + Speed up png_combine_row() for interlaced images. This reduces the generality + of the code, allowing it to be optimized for Adam7 interlace. The masks + passed to png_combine_row() are now generated internally, avoiding + some code duplication and localizing the interlace handling somewhat. + Align png_struct::row_buf - previously it was always unaligned, caused by + a bug in the code that attempted to align it; the code needs to subtract + one from the pointer to take account of the filter byte prepended to + each row. + Optimized png_combine_row() when rows are aligned. This gains a small + percentage for 16-bit and 32-bit pixels in the typical case where the + output row buffers are appropriately aligned. The optimization was not + previously possible because the png_struct buffer was always misaligned. + Fixed bug in png_write_chunk_header() debug print, introduced in 1.5.6beta01. + +Version 1.5.6beta06 [October 17, 2011] + Removed two redundant tests for unitialized row. + Fixed a relatively harmless memory overwrite in compressed text writing + with a 1 byte zlib buffer. + Add ability to call png_read_update_info multiple times to pngvalid.c. + Fixes for multiple calls to png_read_update_info. These fixes attend to + most of the errors revealed in pngvalid, however doing the gamma work + twice results in inaccuracies that can't be easily fixed. There is now + a warning in the code if this is going to happen. + Turned on multiple png_read_update_info in pngvalid transform tests. + Prevent libpng from overwriting unused bits at the end of the image when + it is not byte aligned, while reading. Prior to libpng-1.5.6 libpng would + overwrite the partial byte at the end of each row if the row width was not + an exact multiple of 8 bits and the image is not interlaced. + +Version 1.5.6beta07 [October 21, 2011] + Made png_ptr->prev_row an aligned pointer into png_ptr->big_prev_row + (Mans Rullgard). + +Version 1.5.6rc01 [October 26, 2011] + Changed misleading "Missing PLTE before cHRM" warning to "Out of place cHRM" + +Version 1.5.6rc02 [October 27, 2011] + Added LSR() macro to defend against buggy compilers that evaluate non-taken + code branches and complain about out-of-range shifts. + +Version 1.5.6rc03 [October 28, 2011] + Renamed the LSR() macro to PNG_LSR() and added PNG_LSL() macro. + Fixed compiler warnings with Intel and MSYS compilers. The logical shift + fix for Microsoft Visual C is required by other compilers, so this + enables that fix for all compilers when using compile-time constants. + Under MSYS 'byte' is a name declared in a system header file, so we + changed the name of a local variable to avoid the warnings that result. + Added #define PNG_ALIGN_TYPE PNG_ALIGN_NONE to contrib/pngminim/*/pngusr.h + +Version 1.5.6 [November 3, 2011] + No changes. + +Version 1.5.7beta01 [November 4, 2011] + Added support for ARM processor, when decoding all PNG up-filtered rows + and any other-filtered rows with 3 or 4 bytes per pixel (Mans Rullgard). + Fixed bug in pngvalid on early allocation failure; fixed type cast in + pngmem.c; pngvalid would attempt to call png_error() if the allocation + of a png_struct or png_info failed. This would probably have led to a + crash. The pngmem.c implementation of png_malloc() included a cast + to png_size_t which would fail on large allocations on 16-bit systems. + Fix for the preprocessor of the Intel C compiler. The preprocessor + splits adjacent @ signs with a space; this changes the concatentation + token from @-@-@ to PNG_JOIN; that should work with all compiler + preprocessors. + Paeth filter speed improvements from work by Siarhei Siamashka. This + changes the 'Paeth' reconstruction function to improve the GCC code + generation on x86. The changes are only part of the suggested ones; + just the changes that definitely improve speed and remain simple. + The changes also slightly increase the clarity of the code. + +Version 1.5.7beta02 [November 11, 2011] + Check compression_type parameter in png_get_iCCP and remove spurious + casts. The compression_type parameter is always assigned to, so must + be non-NULL. The cast of the profile length potentially truncated the + value unnecessarily on a 16-bit int system, so the cast of the (byte) + compression type to (int) is specified by ANSI-C anyway. + Fixed FP division by zero in pngvalid.c; the 'test_pixel' code left + the sBIT fields in the test pixel as 0, which resulted in a floating + point division by zero which was irrelevant but causes systems where + FP exceptions cause a crash. Added code to pngvalid to turn on FP + exceptions if the appropriate glibc support is there to ensure this is + tested in the future. + Updated scripts/pnglibconf.mak and scripts/makefile.std to handle the + new PNG_JOIN macro. + Added versioning to pnglibconf.h comments. + Simplified read/write API initial version; basic read/write tested on + a variety of images, limited documentation (in the header file.) + Installed more accurate linear to sRGB conversion tables. The slightly + modified tables reduce the number of 16-bit values that + convert to an off-by-one 8-bit value. The "makesRGB.c" code that was used + to generate the tables is now in a contrib/sRGBtables sub-directory. + +Version 1.5.7beta03 [November 17, 2011] + Removed PNG_CONST from the sRGB table declarations in pngpriv.h and png.c + Added run-time detection of NEON support. + Added contrib/libtests; includes simplified API test and timing test and + a color conversion utility for rapid checking of failed 'pngstest' results. + Multiple transform bug fixes plus a work-round for double gamma correction. + libpng does not support more than one transform that requires linear data + at once - if this is tried typically the results is double gamma + correction. Since the simplified APIs can need rgb to gray combined with + a compose operation it is necessary to do one of these outside the main + libpng transform code. This check-in also contains fixes to various bugs + in the simplified APIs themselves and to some bugs in compose and rgb to + gray (on palette) itself. + Fixes for C++ compilation using g++ When libpng source is compiled + using g++. The compiler imposes C++ rules on the C source; thus it + is desireable to make the source work with either C or C++ rules + without throwing away useful error information. This change adds + png_voidcast to allow C semantic (void*) cases or the corresponding + C++ static_cast operation, as appropriate. + Added --noexecstack to assembler file compilation. GCC does not set + this on assembler compilation, even though it does on C compilation. + This creates security issues if assembler code is enabled; the + work-around is to set it by default in the flags for $(CCAS) + Work around compilers that don't support declaration of const data. Some + compilers fault 'extern const' data declarations (because the data is + not initialized); this turns on const-ness only for compilers where + this is known to work. + +Version 1.5.7beta04 [November 17, 2011] + Since the gcc driver does not recognize the --noexecstack flag, we must + use the -Wa prefix to have it passed through to the assembler. + Also removed a duplicate setting of this flag. + Added files that were omitted from the libpng-1.5.7beta03 zip distribution. + +Version 1.5.7beta05 [November 25, 2011] + Removed "zTXt" from warning in generic chunk decompression function. + Validate time settings passed to pngset() and png_convert_to_rfc1123() + (Frank Busse). + Added MINGW support to CMakeLists.txt + Reject invalid compression flag or method when reading the iTXt chunk. + Backed out 'simplified' API changes. The API seems too complex and there + is a lack of consensus or enthusiasm for the proposals. The API also + reveals significant bugs inside libpng (double gamma correction and the + known bug of being unable to retrieve a corrected palette). It seems + better to wait until the bugs, at least, are corrected. + Moved pngvalid.c into contrib/libtests + Rebuilt Makefile.in, configure, etc., with autoconf-2.68 + +Version 1.5.7rc01 [December 1, 2011] + Replaced an "#if" with "#ifdef" in pngrtran.c + Revised #if PNG_DO_BC block in png.c (use #ifdef and add #else) + +Version 1.5.7rc02 [December 5, 2011] + Revised project files and contrib/pngvalid/pngvalid.c to account for + the relocation of pngvalid into contrib/libtests. + Revised pngconf.h to use " __declspec(restrict)" only when MSC_VER >= 1400, + as in libpng-1.5.4. + Put CRLF line endings in the owatcom project files. + +Version 1.5.7rc03 [December 7, 2011] + Updated CMakeLists.txt to account for the relocation of pngvalid.c + +Version 1.5.7 [December 15, 2011] + Minor fixes to pngvalid.c for gcc 4.6.2 compatibility to remove warnings + reported by earlier versions. + Fixed minor memset/sizeof errors in pngvalid.c. + +Version 1.6.0beta01 [December 15, 2011] + Removed machine-generated configure files from the GIT repository (they will + continue to appear in the tarball distributions and in the libpng15 and + earlier GIT branches). + Restored the new 'simplified' API, which was started in libpng-1.5.7beta02 + but later deleted from libpng-1.5.7beta05. + Added example programs for the new 'simplified' API. + Added ANSI-C (C90) headers and require them, and take advantage of the + change. Also fixed some of the projects/* and contrib/* files that needed + updates for libpng16 and the move of pngvalid.c. + With this change the required ANSI-C header files are assumed to exist: the + implementation must provide float.h, limits.h, stdarg.h and stddef.h and + libpng relies on limits.h and stddef.h existing and behaving as defined + (the other two required headers aren't used). Non-ANSI systems that don't + have stddef.h or limits.h will have to provide an appropriate fake + containing the relevant types and #defines. + The use of FAR/far has been eliminated and the definition of png_alloc_size_t + is now controlled by a flag so that 'small size_t' systems can select it + if necessary. Libpng 1.6 may not currently work on such systems -- it + seems likely that it will ask 'malloc' for more than 65535 bytes with any + image that has a sufficiently large row size (rather than simply failing + to read such images). + New tools directory containing tools used to generate libpng code. + Fixed race conditions in parallel make builds. With higher degrees of + parallelism during 'make' the use of the same temporary file names such + as 'dfn*' can result in a race where a temporary file from one arm of the + build is deleted or overwritten in another arm. This changes the + temporary files for suffix rules to always use $* and ensures that the + non-suffix rules use unique file names. + +Version 1.6.0beta02 [December 21, 2011] + Correct configure builds where build and source directories are separate. + The include path of 'config.h' was erroneously made relative in pngvalid.c + in libpng 1.5.7. + +Version 1.6.0beta03 [December 22, 2011] + Start-up code size improvements, error handler flexibility. These changes + alter how the tricky allocation of the initial png_struct and png_info + structures are handled. png_info is now handled in pretty much the same + way as everything else, except that the allocations handle NULL return + silently. png_struct is changed in a similar way on allocation and on + deallocation a 'safety' error handler is put in place (which should never + be required). The error handler itself is changed to permit mismatches + in the application and libpng error buffer size; however, this means a + silent change to the API to return the jmp_buf if the size doesn't match + the size from the libpng compilation; libpng now allocates the memory and + this may fail. Overall these changes result in slight code size + reductions; however, this is a reduction in code that is always executed + so is particularly valuable. Overall on a 64-bit system the libpng DLL + decreases in code size by 1733 bytes. pngerror.o increases in size by + about 465 bytes because of the new functionality. + Added png_convert_to_rfc1123_buffer() and deprecated png_convert_to_rfc1123() + to avoid including a spurious buffer in the png_struct. + +Version 1.6.0beta04 [December 30, 2011] + Regenerated configure scripts with automake-1.11.2 + Eliminated png_info_destroy(). It is now used only in png.c and only calls + one other internal function and memset(). + Enabled png_get_sCAL_fixed() if floating point APIs are enabled. Previously + it was disabled whenever internal fixed point arithmetic was selected, + which meant it didn't exist even on systems where FP was available but not + preferred. + Added pngvalid.c compile time checks for const APIs. + Implemented 'restrict' for png_info and png_struct. Because of the way + libpng works both png_info and png_struct are always accessed via a + single pointer. This means adding C99 'restrict' to the pointer gives + the compiler some opportunity to optimize the code. This change allows + that. + Moved AC_MSG_CHECKING([if libraries can be versioned]) later to the proper + location in configure.ac (Gilles Espinasse). + Changed png_memcpy to C assignment where appropriate. Changed all those + uses of png_memcpy that were doing a simple assignment to assignments + (all those cases where the thing being copied is a non-array C L-value). + Added some error checking to png_set_*() routines. + Removed the reference to the non-exported function png_memcpy() from + example.c. + Fixed the Visual C 64-bit build - it requires jmp_buf to be aligned, but + it had become misaligned. + Revised contrib/pngminus/pnm2png.c to avoid warnings when png_uint_32 + and unsigned long are of different sizes. + +Version 1.6.0beta05 [January 15, 2012] + Updated manual with description of the simplified API (copied from png.h) + Fix bug in pngerror.c: some long warnings were being improperly truncated + (CVE-2011-3464, bug introduced in libpng-1.5.3beta05). + +Version 1.6.0beta06 [January 24, 2012] + Added palette support to the simplified APIs. This commit + changes some of the macro definitions in png.h, app code + may need corresponding changes. + Increased the formatted warning buffer to 192 bytes. + Added color-map support to simplified API. This is an initial version for + review; the documentation has not yet been updated. + Fixed Min/GW uninstall to remove libpng.dll.a + +Version 1.6.0beta07 [January 28, 2012] + Eliminated Intel icc/icl compiler warnings. The Intel (GCC derived) + compiler issues slightly different warnings from those issued by the + current vesions of GCC. This eliminates those warnings by + adding/removing casts and small code rewrites. + Updated configure.ac from autoupdate: added --enable-werror option. + Also some layout regularization and removal of introduced tab characters + (replaced with 3-character indentation). Obsolete macros identified by + autoupdate have been removed; the replacements are all in 2.59 so + the pre-req hasn't been changed. --enable-werror checks for support + for -Werror (or the given argument) in the compiler. This mimics the + gcc configure option by allowing -Werror to be turned on safely; without + the option the tests written in configure itself fail compilation because + they cause compiler warnings. + Rewrote autogen.sh to run autoreconf instead of running tools one-by-one. + Conditionalize the install rules for MINGW and CYGWIN in CMakeLists.txt and + set CMAKE_LIBRARY_OUTPUT_DIRECTORY to "lib" on all platforms (C. Yapp). + Freeze libtool files in the 'scripts' directory. This version of autogen.sh + attempts to dissuade people from running it when it is not, or should not, + be necessary. In fact, autogen.sh does not work when run in a libpng + directory extracted from a tar distribution anymore. You must run it in + a GIT clone instead. + Added two images to contrib/pngsuite (1-bit and 2-bit transparent grayscale), + and renamed three whose names were inconsistent with those in + pngsuite/README.txt. + +Version 1.6.0beta08 [February 1, 2012] + Fixed Image::colormap misalignment in pngstest.c + Check libtool/libtoolize version number (2.4.2) in configure.ac + Divide test-pngstest.sh into separate pngstest runs for basic and + transparent images. + Moved automake options to AM_INIT_AUTOMAKE in configure.ac + Added color-tests, silent-rules (Not yet implemented in Makefile.am) and + version checking to configure.ac + Improved pngstest speed by not doing redundant tests and add const to + the background parameter of png_image_finish_read. The --background + option is now done automagically only when required, so that commandline + option no longer exists. + Cleaned up pngpriv.h to consistently declare all functions and data. + Also eliminated PNG_CONST_DATA, which is apparently not needed but we + can't be sure until it is gone. + Added symbol prefixing that allows all the libpng external symbols + to be prefixed (suggested by Reuben Hawkins). + Updated "ftbb*.png" list in the owatcom and vstudio projects. + Fixed 'prefix' builds on clean systems. The generation of pngprefix.h + should not require itself. + Updated INSTALL to explain that autogen.sh must be run in a GIT clone, + not in a libpng directory extracted from a tar distribution. + +Version 1.6.0beta09 [February 1, 2012] + Reverted the prebuilt configure files to libpng-1.6.0beta05 condition. + +Version 1.6.0beta10 [February 3, 2012] + Added Z_SOLO for zlib-1.2.6+ and correct pngstest tests + Updated list of test images in CMakeLists.txt + Updated the prebuilt configure files to current condition. + Revised INSTALL information about autogen.sh; it works in tar distributions. + +Version 1.6.0beta11 [February 16, 2012] + Fix character count in pngstest command in projects/owatcom/pngstest.tgt + Revised test-pngstest.sh to report PASS/FAIL for each image. + Updated documentation about the simplified API. + Corrected estimate of error in libpng png_set_rgb_to_gray API. The API is + extremely inaccurate for sRGB conversions because it uses an 8-bit + intermediate linear value and it does not use the sRGB transform, so it + suffers from the known instability in gamma transforms for values close + to 0 (see Poynton). The net result is that the calculation has a maximum + error of 14.99/255; 0.5/255^(1/2.2). pngstest now uses 15 for the + permitted 8-bit error. This may still not be enough because of arithmetic + error. + Removed some unused arrays (with #ifdef) from png_read_push_finish_row(). + Fixed a memory overwrite bug in simplified read of RGB PNG with + non-linear gamma Also bugs in the error checking in pngread.c and changed + quite a lot of the checks in pngstest.c to be correct; either correctly + written or not over-optimistic. The pngstest changes are insufficient to + allow all possible RGB transforms to be passed; pngstest cmppixel needs + to be rewritten to make it clearer which errors it allows and then changed + to permit known inaccuracies. + Removed tests for no-longer-used *_EMPTY_PLTE_SUPPORTED from pngstruct.h + Fixed fixed/float API export conditionals. 1) If FIXED_POINT or + FLOATING_POINT options were switched off, png.h ended up with lone ';' + characters. This is not valid ANSI-C outside a function. The ';' + characters have been moved inside the definition of PNG_FP_EXPORT and + PNG_FIXED_EXPORT. 2) If either option was switched off, the declaration + of the corresponding functions were completely omitted, even though some + of them are still used internally. The result is still valid, but + produces warnings from gcc with some warning options (including -Wall). The + fix is to cause png.h to declare the functions with PNG_INTERNAL_FUNCTION + when png.h is included from pngpriv.h. + Check for invalid palette index while reading paletted PNG. When one is + found, issue a warning and increase png_ptr->num_palette accordingly. + Apps are responsible for checking to see if that happened. + +Version 1.6.0beta12 [February 18, 2012] + Do not increase num_palette on invalid_index. + Relocated check for invalid palette index to pngrtran.c, after unpacking + the sub-8-bit pixels. + Fixed CVE-2011-3026 buffer overrun bug. This bug was introduced when + iCCP chunk support was added at libpng-1.0.6. Deal more correctly with the + test on iCCP chunk length. Also removed spurious casts that may hide + problems on 16-bit systems. + +Version 1.6.0beta13 [February 24, 2012] + Eliminated redundant png_push_read_tEXt|zTXt|iTXt|unknown code from + pngpread.c and use the sequential png_handle_tEXt, etc., in pngrutil.c; + now that png_ptr->buffer is inaccessible to applications, the special + handling is no longer useful. + Added PNG_SAFE_LIMITS feature to pnglibconf.dfa, pngpriv.h, and new + pngusr.dfa to reset the user limits to safe ones if PNG_SAFE_LIMITS is + defined. To enable, use "CPPFLAGS=-DPNG_SAFE_LIMITS_SUPPORTED=1" on the + configure command or put #define PNG_SAFE_LIMITS_SUPPORTED in + pnglibconf.h.prebuilt and pnglibconf.h. + +Version 1.6.0beta14 [February 27, 2012] + Added information about the new limits in the manual. + Updated Makefile.in + +Version 1.6.0beta15 [March 2, 2012] + Removed unused "current_text" members of png_struct and the png_free() + of png_ptr->current_text from pngread.c + Rewrote pngstest.c for substantial speed improvement. + Fixed transparent pixel and 16-bit rgb tests in pngstest and removed a + spurious check in pngwrite.c + Added PNG_IMAGE_FLAG_FAST for the benefit of applications that store + intermediate files, or intermediate in-memory data, while processing + image data with the simplified API. The option makes the files larger + but faster to write and read. pngstest now uses this by default; this + can be disabled with the --slow option. + Improved pngstest fine tuning of error numbers, new test file generator. + The generator generates images that test the full range of sample values, + allow the error numbers in pngstest to be tuned and checked. makepng + also allows generation of images with extra chunks, although this is + still work-in-progress. + Added check for invalid palette index while reading. + Fixed some bugs in ICC profile writing. The code should now accept + all potentially valid ICC profiles and reject obviously invalid ones. + It now uses png_error() to do so rather than casually writing a PNG + without the necessary color data. + Removed whitespace from the end of lines in all source files and scripts. + +Version 1.6.0beta16 [March 6, 2012] + Relocated palette-index checking function from pngrutil.c to pngtrans.c + Added palette-index checking while writing. + Changed png_inflate() and calling routines to avoid overflow problems. + This is an intermediate check-in that solves the immediate problems and + introduces one performance improvement (avoiding a copy via png_ptr->zbuf.) + Further changes will be made to make ICC profile handling more secure. + Fixed build warnings (MSVC, GCC, GCC v3). Cygwin GCC with default options + declares 'index' as a global, causing a warning if it is used as a local + variable. GCC 64-bit warns about assigning a (size_t) (unsigned 64-bit) + to an (int) (signed 32-bit). MSVC, however, warns about using the + unary '-' operator on an unsigned value (even though it is well defined + by ANSI-C to be ~x+1). The padding calculation was changed to use a + different method. Removed the tests on png_ptr->pass. + Added contrib/libtests/tarith.c to test internal arithmetic functions from + png.c. This is a libpng maintainer program used to validate changes to the + internal arithmetic functions. + Made read 'inflate' handling like write 'deflate' handling. The read + code now claims and releases png_ptr->zstream, like the write code. + The bug whereby the progressive reader failed to release the zstream + is now fixed, all initialization is delayed, and the code checks for + changed parameters on deflate rather than always calling + deflatedEnd/deflateInit. + Validate the zTXt strings in pngvalid. + Added code to validate the windowBits value passed to deflateInit2(). + If the call to deflateInit2() is wrong a png_warning will be issued + (in fact this is harmless, but the PNG data produced may be sub-optimal). + +Version 1.6.0beta17 [March 10, 2012] + Fixed PNG_LIBPNG_BUILD_BASE_TYPE definition. + Reject all iCCP chunks after the first, even if the first one is invalid. + Deflate/inflate was reworked to move common zlib calls into single + functions [rw]util.c. A new shared keyword check routine was also added + and the 'zbuf' is no longer allocated on progressive read. It is now + possible to call png_inflate() incrementally. A warning is no longer + issued if the language tag or translated keyword in the iTXt chunk + has zero length. + If benign errors are disabled use maximum window on ancilliary inflate. + This works round a bug introduced in 1.5.4 where compressed ancillary + chunks could end up with a too-small windowBits value in the deflate + header. + +Version 1.6.0beta18 [March 16, 2012] + Issue a png_benign_error() instead of png_warning() about bad palette index. + In pngtest, treat benign errors as errors if "-strict" is present. + Fixed an off-by-one error in the palette index checking function. + Fixed a compiler warning under Cygwin (Windows-7, 32-bit system) + Revised example.c to put text strings in a temporary character array + instead of directly assigning string constants to png_textp members. + This avoids compiler warnings when -Wwrite-strings is enabled. + Added output flushing to aid debugging under Visual Studio. Unfortunately + this is necessary because the VS2010 output window otherwise simply loses + the error messages on error (they weren't flushed to the window before + the process exited, apparently!) + Added configuration support for benign errors and changed the read + default. Also changed some warnings in the iCCP and sRGB handling + from to benign errors. Configuration now makes read benign + errors warnings and write benign errors to errors by default (thus + changing the behavior on read). The simplified API always forces + read benign errors to warnings (regardless of the system default, unless + this is disabled in which case the simplified API can't be built.) + +Version 1.6.0beta19 [March 18, 2012] + Work around for duplicate row start calls; added warning messages. + This turns on PNG_FLAG_DETECT_UNINITIALIZED to detect app code that + fails to call one of the 'start' routines (not enabled in libpng-1.5 + because it is technically an API change, since it did normally work + before.) It also makes duplicate calls to png_read_start_row (an + internal function called at the start of the image read) benign, as + they were before changes to use png_inflate_claim. Somehow webkit is + causing this to happen; this is probably a mis-feature in the zlib + changes so this commit is only a work-round. + Removed erroneous setting of DETECT_UNINITIALIZED and added more + checks. The code now does a png_error if an attempt is made to do the + row initialization twice; this is an application error and it has + serious consequences because the transform data in png_struct is + changed by each call. + Added application error reporting and added chunk names to read + benign errors; also added --strict to pngstest - not enabled + yet because a warning is produced. + Avoid the double gamma correction warning in the simplified API. + This allows the --strict option to pass in the pngstest checks + +Version 1.6.0beta20 [March 29, 2012] + Changed chunk handler warnings into benign errors, incrementally load iCCP + Added checksum-icc.c to contrib/tools + Prevent PNG_EXPAND+PNG_SHIFT doing the shift twice. + Recognize known sRGB ICC profiles while reading; prefer writing the + iCCP profile over writing the sRGB chunk, controlled by the + PNG_sRGB_PROFILE_CHECKS option. + Revised png_set_text_2() to avoid potential memory corruption (fixes + CVE-2011-3048, also known as CVE-2012-3425). + +Version 1.6.0beta21 [April 27, 2012] + Revised scripts/makefile.darwin: use system zlib; remove quotes around + architecture list; add missing ppc architecture; add architecture options + to shared library link; don't try to create a shared lib based on missing + RELEASE variable. + Enable png_set_check_for_invalid_index() for both read and write. + Removed #ifdef PNG_HANDLE_AS_UNKNOWN_SUPPORTED in pngpriv.h around + declaration of png_handle_unknown(). + Added -lssp_nonshared in a comment in scripts/makefile.freebsd + and changed deprecated NOOBJ and NOPROFILE to NO_OBJ and NO_PROFILE. + +Version 1.6.0beta22 [May 23, 2012] + Removed need for -Wno-cast-align with clang. clang correctly warns on + alignment increasing pointer casts when -Wcast-align is passed. This + fixes the cases that clang warns about either by eliminating the + casts from png_bytep to png_uint_16p (pngread.c), or, for pngrutil.c + where the cast is previously verified or pngstest.c where it is OK, by + introducing new png_aligncast macros to do the cast in a way that clang + accepts. + +Version 1.6.0beta23 [June 6, 2012] + Revised CMakeLists.txt to not attempt to make a symlink under mingw. + Made fixes for new optimization warnings from gcc 4.7.0. The compiler + performs an optimization which is safe; however it then warns about it. + Changing the type of 'palette_number' in pngvalid.c removes the warning. + Do not depend upon a GCC feature macro being available for use in generating + the linker mapfile symbol prefix. + Improved performance of new do_check_palette_indexes() function (only + update the value when it actually increases, move test for whether + the check is wanted out of the function. + +Version 1.6.0beta24 [June 7, 2012] + Don't check palette indexes if num_palette is 0 (as it can be in MNG files). + +Version 1.6.0beta25 [June 16, 2012] + Revised png_set_keep_unknown_chunks() so num_chunks < 0 means ignore all + unknown chunks and all known chunks except for IHDR, PLTE, tRNS, IDAT, + and IEND. Previously it only meant ignore all unknown chunks, the + same as num_chunks == 0. Revised png_image_skip_unused_chunks() to + provide a list of chunks to be processed instead of a list of chunks to + ignore. Revised contrib/gregbook/readpng2.c accordingly. + +Version 1.6.0beta26 [July 10, 2012] + Removed scripts/makefile.cegcc from the *.zip and *.7z distributions; it + depends on configure, which is not included in those archives. + Moved scripts/chkfmt to contrib/tools. + Changed "a+w" to "u+w" in Makefile.in to fix CVE-2012-3386. + +Version 1.6.0beta27 [August 11, 2012] + Do not compile PNG_DEPRECATED, PNG_ALLOC and PNG_PRIVATE when __GNUC__ < 3. + Do not use __restrict when GNUC is <= 3.1 + Removed references to png_zalloc() and png_zfree() from the manual. + Fixed configurations where floating point is completely disabled. Because + of the changes to support symbol prefixing PNG_INTERNAL_FUNCTION declares + floating point APIs during libpng builds even if they are completely + disabled. This requires the png floating point types (png_double*) to be + declared even though the functions are never actually defined. This + change provides a dummy definition so that the declarations work, yet any + implementation will fail to compile because of an incomplete type. + Re-eliminated the use of strcpy() in pngtest.c. An unncessary use of + strcpy() was accidentally re-introduced in libpng16; this change replaces + it with strncpy(). + Eliminated use of png_sizeof(); use sizeof() instead. + Use a consistent style for (sizeof type) and (sizeof (array)) + Cleanup of png_set_filler(). This function does very different things on + read and write. In libpng 1.6 the two cases can be distinguished and + considerable code cleanup, and extra error checking, is possible. This + makes calls on the write side that have no effect be ignored with a + png_app_error(), which can be disabled in the app using + png_set_benign_errors(), and removes the spurious use of usr_channels + on the read side. + Insist on autotools 1.12.1 for git builds because there are security issues + with 1.12 and insisting on anything less would allow 1.12 to be used. + Removed info_ptr->signature[8] from WRITE-only builds. + Add some conditions for compiling png_fixed(). This is a small function + but it requires "-lm" on some platforms. + Cause pngtest --strict to fail on any warning from libpng (not just errors) + and cause it not to fail at the comparison step if libpng lacks support + for writing chunks that it reads from the input (currently only implemented + for compressed text chunks). + Make all three "make check" test programs work without READ or WRITE support. + Now "make check" will succeed even if libpng is compiled with -DPNG_NO_READ + or -DPNG_NO_WRITE. The tests performed are reduced, but the basic reading + and writing of a PNG file is always tested by one or more of the tests. + Consistently use strlen(), memset(), memcpy(), and memcmp() instead of the + png_strlen(), png_memset(), png_memcpy(), and png_memcmp() macros. + Removed the png_sizeof(), png_strlen(), png_memset(), png_memcpy(), and + png_memcmp() macros. + Work around gcc 3.x and Microsoft Visual Studio 2010 complaints. Both object + to the split initialization of num_chunks. + +Version 1.6.0beta28 [August 29, 2012] + Unknown handling fixes and clean up. This adds more correct option + control of the unknown handling, corrects the pre-existing bug where + the per-chunk 'keep' setting is ignored and makes it possible to skip + IDAT chunks in the sequential reader (broken in earlier 1.6 versions). + There is a new test program, test-unknown.c, which is a work in progress + (not currently part of the test suite). Comments in the header files now + explain how the unknown handling works. + Allow fine grain control of unknown chunk APIs. This change allows + png_set_keep_unknown_chunks() to be turned off if not required and causes + both read and write to behave appropriately (on read this is only possible + if the user callback is used to handle unknown chunks). The change + also removes the support for storing unknown chunks in the info_struct + if the only unknown handling enabled is via the callback, allowing libpng + to be configured with callback reading and none of the unnecessary code. + Corrected fix for unknown handling in pngtest. This reinstates the + libpng handling of unknown chunks other than vpAg and sTER (including + unsafe-to-copy chunks which were dropped before) and eliminates the + repositioning of vpAg and sTER in pngtest.png by changing pngtest.png + (so the chunks are where libpng would put them). + Added "tunknown" test and corrected a logic error in png_handle_unknown() + when SAVE support is absent. Moved the shell test scripts for + contrib/libtests from the libpng top directory to contrib/libtests. + png_handle_unknown() must always read or skip the chunk, if + SAVE_UNKNOWN_CHUNKS is turned off *and* the application does not set + a user callback an unknown chunk will not be read, leading to a read + error, which was revealed by the "tunknown" test. + Cleaned up and corrected ICC profile handling. + contrib/libtests/makepng: corrected 'rgb' and 'gray' cases. profile_error + messages could be truncated; made a correct buffer size calculation and + adjusted pngerror.c appropriately. png_icc_check_* checking improved; + changed the functions to receive the correct color type of the PNG on read + or write and check that it matches the color space of the profile (despite + what the comments said before, there is danger in assuming the app will + cope correctly with an RGB profile on a grayscale image and, since it + violates the PNG spec, allowing it is certain to produce inconsistent + app behavior and might even cause app crashes.) Check that profiles + contain the tags needed to process the PNG (tags all required by the ICC + spec). Removed unused PNG_STATIC from pngpriv.h. + +Version 1.6.0beta29 [September 4, 2012] + Fixed the simplified API example programs to add the *colormap parameter + to several of he API and improved the error message if the version field + is not set. + Added contrib/examples/* to the *.zip and *.7z distributions. + Updated simplified API synopses and description of the png_image structure + in the manual. + Made makepng and pngtest produce identical PNGs, add "--relaxed" option + to pngtest. The "--relaxed" option turns off the benign errors that are + enabled by default in pre-RC builds. makepng can now write ICC profiles + where the length has not been extended to a multiple of 4, and pngtest + now intercepts all libpng errors, allowing the previously-introduced + "--strict test" on no warnings to actually work. + Improved ICC profile handling including cHRM chunk generation and fixed + Cygwin+MSVC build errors. The ICC profile handling now includes more + checking. Several errors that caused rejection of the profile are now + handled with a warning in such a way that the invalid profiles will be + read by default in release (but not pre-RC) builds but will not be + written by default. The easy part of handling the cHRM chunk is written, + where the ICC profile contains the required data. The more difficult + part plus guessing a gAMA value requires code to pass selected RGB values + through the profile. + +Version 1.6.0beta30 [October 24, 2012] + Changed ICC profile matrix/vector types to not depend on array type rules. + By the ANSI-C standard the new types should be identical to the previous + versions, and all known versions of gcc tested with the previous versions + except for GCC-4.2.1 work with this version. The change makes the ANSI-C + rule that const applied to an array of elements applies instead to the + elements in the array moot by explicitly applying const to the base + elements of the png_icc_matrix and png_icc_vector types. The accidental + (harmless) 'const' previously applied to the parameters of two of the + functions have also been removed. + Added a work around for GCC 4.2 optimization bug. + Marked the broken (bad white point) original HP sRGB profiles correctly and + correct comments. + Added -DZ_SOLO to contrib/pngminim/*/makefile to work with zlib-1.2.7 + Use /MDd for vstudio debug builds. Also added pngunkown to the vstudio + builds, fixed build errors and corrected a minor exit code error in + pngvalid if the 'touch' file name is invalid. + Add updated WARNING file to projects/vstudio from libpng 1.5/vstudio + Fixed build when using #define PNG_NO_READ_GAMMA in png_do_compose() in + pngrtran.c (Domani Hannes). + +Version 1.6.0beta31 [November 1, 2012] + Undid the erroneous change to vstudio/pngvalid build in libpng-1.6.0beta30. + Made pngvalid so that it will build outside the libpng source tree. + Made builds -DPNG_NO_READ_GAMMA compile (the unit tests still fail). + Made PNG_NO_READ_GAMMA switch off interfaces that depend on READ_GAMMA. + Prior to 1.6.0 switching off READ_GAMMA did unpredictable things to the + interfaces that use it (specifically, png_do_background in 1.4 would + simply display composite for grayscale images but do composition + with the incorrect arithmetic for color ones). In 1.6 the semantic + of -DPNG_NO_READ_GAMMA is changed to simply disable any interface that + depends on it; this obliges people who set it to consider whether they + really want it off if they happen to use any of the interfaces in + question (typically most users who disable it won't). + Fixed GUIDs in projects/vstudio. Some were duplicated or missing, + resulting in VS2010 having to update the files. + Removed non-working ICC profile support code that was mostly added to + libpng-1.6.0beta29 and beta30. There was too much code for too little + gain; implementing full ICC color correction may be desireable but is left + up to applications. + +Version 1.6.0beta32 [November 25, 2012] + Fixed an intermittent SEGV in pngstest due to an uninitialized array element. + Added the ability for contrib/libtests/makepng.c to make a PNG with just one + color. This is useful for debugging pngstest color inaccuracy reports. + Fixed error checking in the simplified write API (Olaf van der Spek) + Made png_user_version_check() ok to use with libpng version 1.10.x and later. + +Version 1.6.0beta33 [December 15, 2012] + Fixed typo in png.c (PNG_SET_CHUNK_MALLOC_MAX should be PNG_CHUNK_MALLOC_MAX) + that causes the MALLOC_MAX limit not to work (John Bowler) + Change png_warning() to png_app_error() in pngwrite.c and comment the + fall-through condition. + Change png_warning() to png_app_warning() in png_write_tRNS(). + Rearranged the ARM-NEON optimizations: Isolated the machine specific code + to the hardware subdirectory and added comments to pngrutil.c so that + implementors of other optimizations know what to do. + Fixed cases of unquoted DESTDIR in Makefile.am + Rebuilt Makefile.in, etc., with autoconf-2.69 and automake-1.12.5. + +Version 1.6.0beta34 [December 19, 2012] + Cleaned up whitespace in the synopsis portion of the manpage "libpng.3" + Disassembled the version number in scripts/options.awk (necessary for + building on SunOs). + +Version 1.6.0beta35 [December 23, 2012] + Made default Zlib compression settings be configurable. This adds #defines to + pnglibconf.h to control the defaults. + Fixed Windows build issues, enabled ARM compilation. Various warnings issued + by earlier versions of GCC fixed for Cygwin and Min/GW (which both use old + GCCs.) ARM support is enabled by default in zlib.props (unsupported by + Microsoft) and ARM compilation is made possible by deleting the check for + x86. The test programs cannot be run because they are not signed. + +Version 1.6.0beta36 [January 2, 2013] + Discontinued distributing libpng-1.x.x.tar.bz2. + Discontinued distributing libpng-1.7.0-1.6.0-diff.txt and similar. + Rebuilt configure with autoconf-2.69 (inadvertently not done in beta33) + Fixed 'make distcheck' on SUN OS - libpng.so was not being removed + +Version 1.6.0beta37 [January 10, 2013] + Fixed conceivable but difficult to repro overflow. Also added two test + programs to generate and test a PNG which should have the problem. + +Version 1.6.0beta39 [January 19, 2013] + Again corrected attempt at overflow detection in png_set_unknown_chunks() + (CVE-2013-7353). Added overflow detection in png_set_sPLT() and + png_set_text_2() (CVE-2013-7354). + +Version 1.6.0beta40 [January 20, 2013] + Use consistent handling of overflows in text, sPLT and unknown png_set_* APIs + +Version 1.6.0rc01 [January 26, 2013] + No changes. + +Version 1.6.0rc02 [February 4, 2013] + Added png_get_palette_max() function. + +Version 1.6.0rc03 [February 5, 2013] + Fixed the png_get_palette_max API. + +Version 1.6.0rc04 [February 7, 2013] + Turn serial tests back on (recently turned off by autotools upgrade). + +Version 1.6.0rc05 [February 8, 2013] + Update manual about png_get_palette_max(). + +Version 1.6.0rc06 [February 9, 2013] + Fixed missing dependency in --prefix builds The intermediate + internal 'prefix.h' file can only be generated correctly after + pnglibconf.h, however the dependency was not in Makefile.am. The + symptoms are unpredictable depending on the order make chooses to + build pngprefix.h and pnglibconf.h, often the error goes unnoticed + because there is a system pnglibconf.h to use instead. + +Version 1.6.0rc07 [February 10, 2013] + Enclosed the new png_get_palette_max in #ifdef PNG_GET_PALETTE_MAX_SUPPORTED + block, and revised pnglibconf.h and pnglibconf.h.prebuilt accordingly. + +Version 1.6.0rc08 [February 10, 2013] + Fix typo in png.h #ifdef + +Version 1.6.0 [February 14, 2013] + No changes. + +Version 1.6.1beta01 [February 16, 2013] + Made symbol prefixing work with the ARM neon optimizations. Also allow + pngpriv.h to be included for preprocessor definitions only, so it can + be used in non-C/C++ files. Back ported from libpng 1.7. + Made sRGB check numbers consistent. + Ported libpng 1.5 options.awk/dfn file handling to 1.6, fixed one bug. + Removed cc -E workround, corrected png_get_palette_max API Tested on + SUN OS cc 5.9, which demonstrates the tokenization problem previously + avoided by using /lib/cpp. Since all .dfn output is now protected in + double quotes unless it is to be macro substituted the fix should + work everywhere. + Enabled parallel tests - back ported from libpng-1.7. + scripts/pnglibconf.dfa formatting improvements back ported from libpng17. + Fixed a race condition in the creation of the build 'scripts' directory + while building with a parallel make. + Use approved/supported Android method to check for NEON, use Linux/POSIX + 1003.1 API to check /proc/self/auxv avoiding buffer allocation and other + library calls (ported from libpng15). + +Version 1.6.1beta02 [February 19, 2013] + Use parentheses more consistently in "#if defined(MACRO)" tests. + Folded long lines. + Reenabled code to allow zero length PLTE chunks for MNG. + +Version 1.6.1beta03 [February 22, 2013] + Fixed ALIGNED_MEMORY support. + Allow run-time ARM NEON checking to be disabled. A new configure option: + --enable-arm-neon=always will stop the run-time checks. New checks + within arm/arm_init.c will cause the code not to be compiled unless + __ARM_NEON__ is set. This should make it fail safe (if someone asks + for it on then the build will fail if it can't be done.) + Updated the INSTALL document. + +Version 1.6.1beta04 [February 27, 2013] + Revised INSTALL to recommend using CPPFLAGS instead of INCLUDES. + Revised scripts/makefile.freebsd to respect ZLIBLIB and ZLIBINC. + Revised scripts/dfn.awk to work with the buggy MSYS awk that has trouble + with CRLF line endings. + +Version 1.6.1beta05 [March 1, 2013] + Avoid a possible memory leak in contrib/gregbook/readpng.c + +Version 1.6.1beta06 [March 4, 2013] + Better documentation of unknown handling API interactions. + Corrected Android builds and corrected libpng.vers with symbol + prefixing This adds an API to set optimization options externally, + providing an alternative and general solution for the non-portable + run-time tests used by the ARM Neon code. It also makes those tests + compile and link on Android. + The order of settings vs options in pnglibconf.h is reversed to allow + settings to depend on options and options can now set (or override) the + defaults for settings. + +Version 1.6.1beta07 [March 7, 2013] + Corrected simplified API default gamma for color-mapped output, added + a flag to change default. In 1.6.0 when the simplified API was used + to produce color-mapped output from an input image with no gamma + information the gamma assumed for the input could be different from + that assumed for non-color-mapped output. In particular 16-bit depth + input files were assumed to be sRGB encoded, whereas in the 'direct' + case they were assumed to have linear data. This was an error. The + fix makes the simplified API treat all input files the same way and + adds a new flag to the png_image::flags member to allow the + application/user to specify that 16-bit files contain sRGB data + rather than the default linear. + Fixed bugs in the pngpixel and makepng test programs. + +Version 1.6.1beta08 [March 7, 2013] + Fixed CMakelists.txt to allow building a single variant of the library + (Claudio Bley): + Introduced a PNG_LIB_TARGETS variable that lists all activated library + targets. It is an error if this variable ends up empty, ie. you have + to build at least one library variant. + Made the *_COPY targets only depend on library targets actually being build. + Use PNG_LIB_TARGETS to unify a code path. + Changed the CREATE_SYMLINK macro to expect the full path to a file as the + first argument. When symlinking the filename component of that path is + determined and used as the link target. + Use copy_if_different in the CREATE_SYMLINK macro. + +Version 1.6.1beta09 [March 13, 2013] + Eliminated two warnings from the Intel C compiler. The warnings are + technically valid, although a reasonable treatment of division would + show it to be incorrect. + +Version 1.6.1rc01 [March 21, 2013] + No changes. + +Version 1.6.1 [March 28, 2013] + No changes. + +Version 1.6.2beta01 [April 14, 2013] + Updated documentation of 1.5.x to 1.6.x changes in iCCP chunk handling. + Fixed incorrect warning of excess deflate data. End condition - the + warning would be produced if the end of the deflate stream wasn't read + in the last row. The warning is harmless. + Corrected the test on user transform changes on read. It was in the + png_set of the transform function, but that doesn't matter unless the + transform function changes the rowbuf size, and that is only valid if + transform_info is called. + Corrected a misplaced closing bracket in contrib/libtests/pngvalid.c + (Flavio Medeiros). + Corrected length written to uncompressed iTXt chunks (Samuli Suominen). + Bug was introduced in libpng-1.6.0. + +Version 1.6.2rc01 [April 18, 2013] + Added contrib/tools/fixitxt.c, to repair the erroneous iTXt chunk length + written by libpng-1.6.0 and 1.6.1. + Disallow storing sRGB information when the sRGB is not supported. + +Version 1.6.2rc02 [April 18, 2013] + Merge pngtest.c with libpng-1.7.0 + +Version 1.6.2rc03 [April 22, 2013] + Trivial spelling cleanup. + +Version 1.6.2rc04 and 1.6.2rc05 [omitted] + +Version 1.6.2rc06 [April 24, 2013] + Reverted to version 1.6.2rc03. Recent changes to arm/neon support + have been ported to libpng-1.7.0beta09 and will reappear in version + 1.6.3beta01. + +Version 1.6.2 [April 25, 2013] + No changes. + +Version 1.6.3beta01 [April 25, 2013] + Revised stack marking in arm/filter_neon.S and configure.ac. + Ensure that NEON filter stuff is completely disabled when switched 'off'. + Previously the ARM NEON specific files were still built if the option + was switched 'off' as opposed to being explicitly disabled. + +Version 1.6.3beta02 [April 26, 2013] + Test for 'arm*' not just 'arm' in the host_cpu configure variable. + Rebuilt the configure scripts. + +Version 1.6.3beta03 [April 30, 2013] + Expanded manual paragraph about writing private chunks, particularly + the need to call png_set_keep_unknown_chunks() when writing them. + Avoid dereferencing NULL pointer possibly returned from + png_create_write_struct() (Andrew Church). + +Version 1.6.3beta05 [May 9, 2013] + Calculate our own zlib windowBits when decoding rather than trusting the + CMF bytes in the PNG datastream. + Added an option to force maximum window size for inflating, which was + the behavior of libpng15 and earlier. + Added png-fix-itxt and png-fix-too-far-back to the built programs and + removed warnings from the source code and timepng that are revealed as + a result. + Detect wrong libpng versions linked to png-fix-too-far-back, which currently + only works with libpng versions that can be made to reliably fail when + the deflate data contains an out-of-window reference. This means only + 1.6 and later. + Fixed gnu issues: g++ needs a static_cast, gcc 4.4.7 has a broken warning + message which it is easier to work round than ignore. + Updated contrib/pngminus/pnm2png.c (Paul Stewart): + Check for EOF + Ignore "#" delimited comments in input file to pnm2png.c. + Fixed whitespace handling + Added a call to png_set_packing() + Initialize dimension values so if sscanf fails at least we have known + invalid values. + Attempt to detect configuration issues with png-fix-too-far-back, which + requires both the correct libpng and the correct zlib to function + correctly. + Check ZLIB_VERNUM for mismatches, enclose #error in quotes + Added information in the documentation about problems with and fixes for + the bad CRC and bad iTXt chunk situations. + +Version 1.6.3beta06 [May 12, 2013] + Allow contrib/pngminus/pnm2png.c to compile without WRITE_INVERT and + WRITE_PACK supported (writes error message that it can't read P1 or + P4 PBM files). + Improved png-fix-too-far-back usage message, added --suffix option. + Revised contrib/pngminim/*/makefile to generate pnglibconf.h with the + right zlib header files. + Separated CPPFLAGS and CFLAGS in contrib/pngminim/*/makefile + +Version 1.6.3beta07 [June 8, 2013] + Removed a redundant test in png_set_IHDR(). + Added set(CMAKE_CONFIGURATION_TYPES ...) to CMakeLists.txt (Andrew Hundt) + Deleted set(CMAKE_BUILD_TYPE) block from CMakeLists.txt + Enclose the prototypes for the simplified write API in + #ifdef PNG_STDIO_SUPPORTED/#endif + Make ARM NEON support work at compile time (not just configure time). + This moves the test on __ARM_NEON__ into pngconf.h to avoid issues when + using a compiler that compiles for multiple architectures at one time. + Removed PNG_FILTER_OPTIMIZATIONS and PNG_ARM_NEON_SUPPORTED from + pnglibconf.h, allowing more of the decisions to be made internally + (pngpriv.h) during the compile. Without this, symbol prefixing is broken + under certain circumstances on ARM platforms. Now only the API parts of + the optimizations ('check' vs 'api') are exposed in the public header files + except that the new setting PNG_ARM_NEON_OPT documents how libpng makes the + decision about whether or not to use the optimizations. + Protect symbol prefixing against CC/CPPFLAGS/CFLAGS useage. + Previous iOS/Xcode fixes for the ARM NEON optimizations moved the test + on __ARM_NEON__ from configure time to compile time. This breaks symbol + prefixing because the definition of the special png_init_filter_functions + call was hidden at configure time if the relevant compiler arguments are + passed in CFLAGS as opposed to CC. This change attempts to avoid all + the confusion that would result by declaring the init function even when + it is not used, so that it will always get prefixed. + +Version 1.6.3beta08 [June 18, 2013] + Revised libpng.3 so that "doclifter" can process it. + +Version 1.6.3beta09 [June 27, 2013] + Revised example.c to illustrate use of PNG_DEFAULT_sRGB and PNG_GAMMA_MAC_18 + as parameters for png_set_gamma(). These have been available since + libpng-1.5.4. + Renamed contrib/tools/png-fix-too-far-back.c to pngfix.c and revised it + to check all compressed chunks known to libpng. + +Version 1.6.3beta10 [July 5, 2013] + Updated documentation to show default behavior of benign errors correctly. + Only compile ARM code when PNG_READ_SUPPORTED is defined. + Fixed undefined behavior in contrib/tools/pngfix.c and added new strip + option. pngfix relied on undefined behavior and even a simple change from + gcc to g++ caused it to fail. The new strip option 'unsafe' has been + implemented and is the default if --max is given. Option names have + been clarified, with --strip=transform now stripping the bKGD chunk, + which was stripped previously with --strip=unused. + Added all documented chunk types to pngpriv.h + Unified pngfix.c source with libpng17. + +Version 1.6.3rc01 [July 11, 2013] + No changes. + +Version 1.6.3 [July 18, 2013] + Revised manual about changes in iTXt chunk handling made in libpng-1.6.0. + Added "/* SAFE */" comments in pngrutil.c and pngrtran.c where warnings + may be erroneously issued by code-checking applications. + +Version 1.6.4beta01 [August 21, 2013] + Added information about png_set_options() to the manual. + Delay calling png_init_filter_functions() until a row with nonzero filter + is found. + +Version 1.6.4beta02 [August 30, 2013] + Fixed inconsistent conditional compilation of png_chunk_unknown_handling() + prototype, definition, and usage. Made it depend on + PNG_HANDLE_AS_UNKNOWN_SUPPORTED everywhere. + +Version 1.6.4rc01 [September 5, 2013] + No changes. + +Version 1.6.4 [September 12, 2013] + No changes. + +Version 1.6.5 [September 14, 2013] + Removed two stray lines of code from arm/arm_init.c. + +Version 1.6.6 [September 16, 2013] + Removed two stray lines of code from arm/arm_init.c, again. + +Version 1.6.7beta01 [September 30, 2013] + Revised unknown chunk code to correct several bugs in the NO_SAVE_/NO_WRITE + combination + Allow HANDLE_AS_UNKNOWN to work when other options are configured off. Also + fixed the pngminim makefiles to work when $(MAKEFLAGS) contains stuff + which terminates the make options (as by default in recent versions of + Gentoo). + Avoid up-cast warnings in pngvalid.c. On ARM the alignment requirements of + png_modifier are greater than that of png_store and as a consequence + compilation of pngvalid.c results in a warning about increased alignment + requirements because of the bare cast to (png_modifier*). The code is safe, + because the pointer is known to point to a stack allocated png_modifier, + but this change avoids the warning. + Fixed default behavior of ARM_NEON_API. If the ARM NEON API option was + compiled without the CHECK option it defaulted to on, not off. + Check user callback behavior in pngunknown.c. Previous versions compiled + if SAVE_UNKNOWN was not available but did nothing since the callback + was never implemented. + Merged pngunknown.c with 1.7 version and back ported 1.7 improvements/fixes + +Version 1.6.7beta02 [October 12, 2013] + Made changes for compatibility with automake 1.14: + 1) Added the 'compile' program to the list of programs that must be cleaned + in autogen.sh + 2) Added 'subdir-objects' which causes .c files in sub-directories to be + compiled such that the corresponding .o files are also in the + sub-directory. This is because automake 1.14 warns that the + current behavior of compiling to the top level directory may be removed + in the future. + 3) Updated dependencies on pnglibconf.h to match the new .o locations and + added all the files in contrib/libtests and contrib/tools that depend + on pnglibconf.h + 4) Added 'BUILD_SOURCES = pnglibconf.h'; this is the automake recommended + way of handling the dependencies of sources that are machine generated; + unfortunately it only works if the user does 'make all' or 'make check', + so the dependencies (3) are still required. + Cleaned up (char*) casts of zlib messages. The latest version of the Intel C + compiler complains about casting a string literal as (char*), so copied the + treatment of z_const from the library code into pngfix.c + Simplified error message code in pngunknown. The simplification has the + useful side effect of avoiding a bogus warning generated by the latest + version of the Intel C compiler (it objects to + condition ? string-literal : string-literal). + Make autogen.sh work with automake 1.13 as well as 1.14. Do this by always + removing the 1.14 'compile' script but never checking for it. + +Version 1.6.7beta03 [October 19, 2013] + Added ARMv8 support (James Yu ). Added file + arm/filter_neon_intrinsics.c; enable with -mfpu=neon. + Revised pngvalid to generate size images with as many filters as it can + manage, limited by the number of rows. + Cleaned up ARM NEON compilation handling. The tests are now in pngpriv.h + and detect the broken GCC compilers. + +Version 1.6.7beta04 [October 26, 2013] + Allow clang derived from older GCC versions to use ARM intrinsics. This + causes all clang builds that use -mfpu=neon to use the intrinsics code, + not the assembler code. This has only been tested on iOS 7. It may be + necessary to exclude some earlier clang versions but this seems unlikely. + Changed NEON implementation selection mechanism. This allows assembler + or intrinsics to be turned on at compile time during the build by defining + PNG_ARM_NEON_IMPLEMENTATION to the correct value (2 or 1). This macro + is undefined by default and the build type is selected in pngpriv.h. + +Version 1.6.7rc01 [November 2, 2013] + No changes. + +Version 1.6.7rc02 [November 7, 2013] + Fixed #include in filter_neon_intrinsics.c and ctype macros. The ctype char + checking macros take an unsigned char argument, not a signed char. + +Version 1.6.7 [November 14, 2013] + No changes. + +Version 1.6.8beta01 [November 24, 2013] + Moved prototype for png_handle_unknown() in pngpriv.h outside of + the #ifdef PNG_SET_UNKNOWN_CHUNKS_SUPPORTED/#endif block. + Added "-Wall" to CFLAGS in contrib/pngminim/*/makefile + Conditionally compile some unused functions reported by -Wall in + pngminim. + Fixed 'minimal' builds. Various obviously useful minimal configurations + don't build because of missing contrib/libtests test programs and + overly complex dependencies in scripts/pnglibconf.dfa. This change + adds contrib/conftest/*.dfa files that can be used in automatic build + scripts to ensure that these configurations continue to build. + Enabled WRITE_INVERT and WRITE_PACK in contrib/pngminim/encoder. + Fixed pngvalid 'fail' function declaration on the Intel C Compiler. + This reverts to the previous 'static' implementation and works round + the 'unused static function' warning by using PNG_UNUSED(). + +Version 1.6.8beta02 [November 30, 2013] + Removed or marked PNG_UNUSED some harmless "dead assignments" reported + by clang scan-build. + Changed tabs to 3 spaces in png_debug macros and changed '"%s"m' + to '"%s" m' to improve portability among compilers. + Changed png_free_default() to free() in pngtest.c + +Version 1.6.8rc01 [December 12, 2013] + Tidied up pngfix inits and fixed pngtest no-write builds. + +Version 1.6.8rc02 [December 14, 2013] + Handle zero-length PLTE chunk or NULL palette with png_error() + instead of png_chunk_report(), which by default issues a warning + rather than an error, leading to later reading from a NULL pointer + (png_ptr->palette) in png_do_expand_palette(). This is CVE-2013-6954 + and VU#650142. Libpng-1.6.1 through 1.6.7 are vulnerable. + Libpng-1.6.0 and earlier do not have this bug. + +Version 1.6.8 [December 19, 2013] + No changes. + +Version 1.6.9beta01 [December 26, 2013] + Bookkeeping: Moved functions around (no changes). Moved transform + function definitions before the place where they are called so that + they can be made static. Move the intrapixel functions and the + grayscale palette builder out of the png?tran.c files. The latter + isn't a transform function and is no longer used internally, and the + former MNG specific functions are better placed in pngread/pngwrite.c + Made transform implementation functions static. This makes the internal + functions called by png_do_{read|write}_transformations static. On an + x86-64 DLL build (Gentoo Linux) this reduces the size of the text + segment of the DLL by 1208 bytes, about 0.6%. It also simplifies + maintenance by removing the declarations from pngpriv.h and allowing + easier changes to the internal interfaces. + Rebuilt configure scripts with automake-1.14.1 and autoconf-2.69 + in the tar distributions. + +Version 1.6.9beta02 [January 1, 2014] + Added checks for libpng 1.5 to pngvalid.c. This supports the use of + this version of pngvalid in libpng 1.5 + Merged with pngvalid.c from libpng-1.7 changes to create a single + pngvalid.c + Removed #error macro from contrib/tools/pngfix.c (Thomas Klausner). + Merged pngrio.c, pngtrans.c, pngwio.c, and pngerror.c with libpng-1.7.0 + Merged libpng-1.7.0 changes to make no-interlace configurations work + with test programs. + Revised pngvalid.c to support libpng 1.5, which does not support the + PNG_MAXIMUM_INFLATE_WINDOW option, so #define it out when appropriate in + pngvalid.c + Allow unversioned links created on install to be disabled in configure. + In configure builds 'make install' changes/adds links like png.h + and libpng.a to point to the newly installed, versioned, files (e.g. + libpng17/png.h and libpng17.a). Three new configure options and some + rearrangement of Makefile.am allow creation of these links to be disabled. + +Version 1.6.9beta03 [January 10, 2014] + Removed potentially misleading warning from png_check_IHDR(). + +Version 1.6.9beta04 [January 20, 2014] + Updated scripts/makefile.* to use CPPFLAGS (Cosmin). + Added clang attribute support (Cosmin). + +Version 1.6.9rc01 [January 28, 2014] + No changes. + +Version 1.6.9rc02 [January 30, 2014] + Quiet an uninitialized memory warning from VC2013 in png_get_png(). + +Version 1.6.9 [February 6, 2014] + +Version 1.6.10beta01 [February 9, 2014] + Backported changes from libpng-1.7.0beta30 and beta31: + Fixed a large number of instances where PNGCBAPI was omitted from + function definitions. + Added pngimage test program for png_read_png() and png_write_png() + with two new test scripts. + Removed dependence on !PNG_READ_EXPAND_SUPPORTED for calling + png_set_packing() in png_read_png(). + Fixed combination of ~alpha with shift. On read invert alpha, processing + occurred after shift processing, which causes the final values to be + outside the range that should be produced by the shift. Reversing the + order on read makes the two transforms work together correctly and mirrors + the order used on write. + Do not read invalid sBIT chunks. Previously libpng only checked sBIT + values on write, so a malicious PNG writer could therefore cause + the read code to return an invalid sBIT chunk, which might lead to + application errors or crashes. Such chunks are now skipped (with + chunk_benign_error). + Make png_read_png() and png_write_png() prototypes in png.h depend + upon PNG_READ_SUPPORTED and PNG_WRITE_SUPPORTED. + Support builds with unsupported PNG_TRANSFORM_* values. All of the + PNG_TRANSFORM_* values are always defined in png.h and, because they + are used for both read and write in some cases, it is not reliable + to #if out ones that are totally unsupported. This change adds error + detection in png_read_image() and png_write_image() to do a + png_app_error() if the app requests something that cannot be done + and it adds corresponding code to pngimage.c to handle such options + by not attempting to test them. + +Version 1.6.10beta02 [February 23, 2014] + Moved redefines of png_error(), png_warning(), png_chunk_error(), + and png_chunk_warning() from pngpriv.h to png.h to make them visible + to libpng-calling applications. + Moved OS dependent code from arm/arm_init.c, to allow the included + implementation of the ARM NEON discovery function to be set at + build-time and provide sample implementations from the current code in the + contrib/arm-neon subdirectory. The __linux__ code has also been changed to + compile and link on Android by using /proc/cpuinfo, and the old linux code + is in contrib/arm-neon/linux-auxv.c. The new code avoids POSIX and Linux + dependencies apart from opening /proc/cpuinfo and is C90 compliant. + Check for info_ptr == NULL early in png_read_end() so we don't need to + run all the png_handle_*() and depend on them to return if info_ptr == NULL. + This improves the performance of png_read_end(png_ptr, NULL) and makes + it more robust against future programming errors. + Check for __has_extension before using it in pngconf.h, to + support older Clang versions (Jeremy Sequoia). + Treat CRC error handling with png_set_crc_action(), instead of with + png_set_benign_errors(), which has been the case since libpng-1.6.0beta18. + Use a user warning handler in contrib/gregbook/readpng2.c instead of default, + so warnings will be put on stderr even if libpng has CONSOLE_IO disabled. + Added png_ptr->process_mode = PNG_READ_IDAT_MODE in png_push_read_chunk + after recognizing the IDAT chunk, which avoids an infinite loop while + reading a datastream whose first IDAT chunk is of zero-length. + This fixes CERT VU#684412 and CVE-2014-0333. + Don't recognize known sRGB profiles as sRGB if they have been hacked, + but don't reject them and don't issue a copyright violation warning. + +Version 1.6.10beta03 [February 25, 2014] + Moved some documentation from png.h to libpng.3 and libpng-manual.txt + Minor editing of contrib/arm-neon/README and contrib/examples/*.c + +Version 1.6.10rc01 [February 27, 2014] + Fixed typos in the manual and in scripts/pnglibconf.dfa (CFLAGS -> CPPFLAGS + and PNG_USR_CONFIG -> PNG_USER_CONFIG). + +Version 1.6.10rc02 [February 28, 2014] + Removed unreachable return statement after png_chunk_error() + in pngrutil.c + +Version 1.6.10rc03 [March 4, 2014] + Un-deprecated png_data_freer(). + +Version 1.6.10 [March 6, 2014] + No changes. + +Version 1.6.11beta01 [March 17, 2014] + Use "if (value != 0)" instead of "if (value)" consistently. + Changed ZlibSrcDir from 1.2.5 to 1.2.8 in projects/vstudio. + Moved configuration information from the manual to the INSTALL file. + +Version 1.6.11beta02 [April 6, 2014] + Removed #if/#else/#endif from inside two pow() calls in pngvalid.c because + they were handled improperly by Portland Group's PGI-14.1 - PGI-14.3 + when using its "__builtin_pow()" function. + Silence 'unused parameter' build warnings (Cosmin Truta). + $(CP) is now used alongside $(RM_F). Also, use 'copy' instead of 'cp' + where applicable, and applied other minor makefile changes (Cosmin). + Don't warn about invalid dimensions exceeding user limits (Cosmin). + Allow an easy replacement of the default pre-built configuration + header with a custom header, via the make PNGLIBCONF_H_PREBUILT + macro (Cosmin). + +Version 1.6.11beta03 [April 6, 2014] + Fixed a typo in pngrutil.c, introduced in libpng-1.5.6, that interferes + with "blocky" expansion of sub-8-bit interlaced PNG files (Eric Huss). + Optionally use __builtin_bswap16() in png_do_swap(). + +Version 1.6.11beta04 [April 19, 2014] + Made progressive reading of interlaced images consistent with the + behavior of the sequential reader and consistent with the manual, by + moving some code out of the PNG_READ_INTERLACING_SUPPORTED blocks. The + row_callback now receives the proper pass number and unexpanded rows, when + png_combine_row() isn't built or used, and png_set_interlace_handling() + is not called. + Allow PNG_sRGB_PROFILE_CHECKING = (-1) to mean no sRGB profile checking. + +Version 1.6.11beta05 [April 26, 2014] + Do not reject ICC V2 profiles that lack padding (Kai-Uwe Behrmann). + Relocated closing bracket of the sRGB profile test loop to avoid getting + "Not recognizing known sRGB profile that has been edited" warning for + ICC V2 profiles that lack the MD5 signature in the profile header. + +Version 1.6.11beta06 [May 19, 2014] + Added PNG_SKIP_sRGB_CHECK_PROFILE choice for png_set_option(). + +Version 1.6.11rc01 [May 27, 2014] + No changes. + +Version 1.6.11rc02 [June 3, 2014] + Test ZLIB_VERNUM instead of PNG_ZLIB_VERNUM in contrib/tools/pngfix.c + +Version 1.6.11 [June 5, 2014] + No changes. + +Version 1.6.12rc01 [June 6, 2014] + Relocated new code from 1.6.11beta06 in png.c to a point after the + declarations (Max Stepin). + +Version 1.6.12rc02 [June 7, 2014] + Changed file permissions of contrib/tools/intgamma.sh, + test-driver, and compile from 0644 to 0755 (Cosmin). + +Version 1.6.12rc03 [June 8, 2014] + Ensure "__has_attribute()" macro exists before trying to use it with + old clang compilers (MacPorts Ticket #43939). + +Version 1.6.12 [June 12, 2014] + No changes. + +Send comments/corrections/commendations to png-mng-implement at lists.sf.net +(subscription required; visit +https://lists.sourceforge.net/lists/listinfo/png-mng-implement +to subscribe) +or to glennrp at users.sourceforge.net + +Glenn R-P +#endif diff --git a/png/CMakeLists.txt b/png/CMakeLists.txt new file mode 100644 index 0000000..f74147b --- /dev/null +++ b/png/CMakeLists.txt @@ -0,0 +1,364 @@ +# CMakeLists.txt + +# Copyright (C) 2007-2013 Glenn Randers-Pehrson + +# This code is released under the libpng license. +# For conditions of distribution and use, see the disclaimer +# and license in png.h + +cmake_minimum_required(VERSION 2.4.4) +set(CMAKE_ALLOW_LOOSE_LOOP_CONSTRUCTS true) + +set(CMAKE_CONFIGURATION_TYPES "Release;Debug;MinSizeRel;RelWithDebInfo") + +project(libpng C) +enable_testing() + +set(PNGLIB_MAJOR 1) +set(PNGLIB_MINOR 6) +set(PNGLIB_RELEASE 12) +set(PNGLIB_NAME libpng${PNGLIB_MAJOR}${PNGLIB_MINOR}) +set(PNGLIB_VERSION ${PNGLIB_MAJOR}.${PNGLIB_MINOR}.${PNGLIB_RELEASE}) + +# needed packages +find_package(ZLIB REQUIRED) +include_directories(${ZLIB_INCLUDE_DIR}) + +if(NOT WIN32) + find_library(M_LIBRARY + NAMES m + PATHS /usr/lib /usr/local/lib + ) + if(NOT M_LIBRARY) + message(STATUS + "math library 'libm' not found - floating point support disabled") + endif() +else() + # not needed on windows + set(M_LIBRARY "") +endif() + +# COMMAND LINE OPTIONS +if(DEFINED PNG_SHARED) + option(PNG_SHARED "Build shared lib" ${PNG_SHARED}) +else() + option(PNG_SHARED "Build shared lib" ON) +endif() +if(DEFINED PNG_STATIC) + option(PNG_STATIC "Build static lib" ${PNG_STATIC}) +else() + option(PNG_STATIC "Build static lib" ON) +endif() + +option(PNG_TESTS "Build libpng tests" YES) + +# Many more configuration options could be added here +option(PNG_DEBUG "Build with debug output" NO) +option(PNGARG "Disable ANSI-C prototypes" NO) + +# SET LIBNAME +set(PNG_LIB_NAME png${PNGLIB_MAJOR}${PNGLIB_MINOR}) + +# to distinguish between debug and release lib +set(CMAKE_DEBUG_POSTFIX "d") + +# Use the prebuilt pnglibconf.h file from the scripts folder +# TODO: fix this by building with awk; without this no cmake build can be +# configured directly (to do so indirectly use your local awk to build a +# pnglibconf.h in the build directory.) +configure_file(${CMAKE_CURRENT_SOURCE_DIR}/scripts/pnglibconf.h.prebuilt + ${CMAKE_CURRENT_BINARY_DIR}/pnglibconf.h) +include_directories(${CMAKE_CURRENT_BINARY_DIR}) + +# OUR SOURCES +set(libpng_public_hdrs + png.h + pngconf.h + ${CMAKE_CURRENT_BINARY_DIR}/pnglibconf.h +) +set(libpng_sources + ${libpng_public_hdrs} + pngdebug.h + pnginfo.h + pngpriv.h + pngstruct.h + png.c + pngerror.c + pngget.c + pngmem.c + pngpread.c + pngread.c + pngrio.c + pngrtran.c + pngrutil.c + pngset.c + pngtrans.c + pngwio.c + pngwrite.c + pngwtran.c + pngwutil.c +) +set(pngtest_sources + pngtest.c +) +set(pngvalid_sources + contrib/libtests/pngvalid.c +) +set(pngstest_sources + contrib/libtests/pngstest.c +) +# SOME NEEDED DEFINITIONS + +if(MSVC) + add_definitions(-D_CRT_SECURE_NO_DEPRECATE) +endif(MSVC) + +if(PNG_DEBUG) + add_definitions(-DPNG_DEBUG) +endif() + +# NOW BUILD OUR TARGET +include_directories(${CMAKE_CURRENT_SOURCE_DIR} ${ZLIB_INCLUDE_DIR}) + +unset(PNG_LIB_TARGETS) + +if(PNG_SHARED) + add_library(${PNG_LIB_NAME} SHARED ${libpng_sources}) + set(PNG_LIB_TARGETS ${PNG_LIB_NAME}) + if(MSVC) + # msvc does not append 'lib' - do it here to have consistent name + set_target_properties(${PNG_LIB_NAME} PROPERTIES PREFIX "lib") + set_target_properties(${PNG_LIB_NAME} PROPERTIES IMPORT_PREFIX "lib") + endif() + target_link_libraries(${PNG_LIB_NAME} ${ZLIB_LIBRARY} ${M_LIBRARY}) +endif() + +if(PNG_STATIC) +# does not work without changing name + set(PNG_LIB_NAME_STATIC ${PNG_LIB_NAME}_static) + add_library(${PNG_LIB_NAME_STATIC} STATIC ${libpng_sources}) + list(APPEND PNG_LIB_TARGETS ${PNG_LIB_NAME_STATIC}) + if(MSVC) + # msvc does not append 'lib' - do it here to have consistent name + set_target_properties(${PNG_LIB_NAME_STATIC} PROPERTIES PREFIX "lib") + endif() + target_link_libraries(${PNG_LIB_NAME_STATIC} ${ZLIB_LIBRARY} ${M_LIBRARY}) +endif() + +if(NOT PNG_LIB_TARGETS) + message(SEND_ERROR + "No library variant selected to build. " + "Please enable at least one of the following options: PNG_STATIC, PNG_SHARED") +endif() + +if(PNG_SHARED AND WIN32) + set_target_properties(${PNG_LIB_NAME} PROPERTIES DEFINE_SYMBOL PNG_BUILD_DLL) +endif() + +if(PNG_TESTS AND PNG_SHARED) + # does not work with msvc due to png_lib_ver issue + add_executable(pngtest ${pngtest_sources}) + target_link_libraries(pngtest ${PNG_LIB_NAME}) + add_test(pngtest ./pngtest ${CMAKE_CURRENT_SOURCE_DIR}/pngtest.png) + # + add_executable(pngvalid ${pngvalid_sources}) + target_link_libraries(pngvalid ${PNG_LIB_NAME}) + add_test(pngvalid ./pngvalid) + add_executable(pngstest ${pngstest_sources}) + target_link_libraries(pngstest ${PNG_LIB_NAME}) + add_test(pngstest ./pngstest + ${CMAKE_CURRENT_SOURCE_DIR}/contrib/pngsuite/basn0g01.png + ${CMAKE_CURRENT_SOURCE_DIR}/contrib/pngsuite/basn0g02.png + ${CMAKE_CURRENT_SOURCE_DIR}/contrib/pngsuite/basn0g04.png + ${CMAKE_CURRENT_SOURCE_DIR}/contrib/pngsuite/basn0g08.png + ${CMAKE_CURRENT_SOURCE_DIR}/contrib/pngsuite/basn0g16.png + ${CMAKE_CURRENT_SOURCE_DIR}/contrib/pngsuite/basn2c08.png + ${CMAKE_CURRENT_SOURCE_DIR}/contrib/pngsuite/basn2c16.png + ${CMAKE_CURRENT_SOURCE_DIR}/contrib/pngsuite/basn3p01.png + ${CMAKE_CURRENT_SOURCE_DIR}/contrib/pngsuite/basn3p02.png + ${CMAKE_CURRENT_SOURCE_DIR}/contrib/pngsuite/basn3p04.png + ${CMAKE_CURRENT_SOURCE_DIR}/contrib/pngsuite/basn3p08.png + ${CMAKE_CURRENT_SOURCE_DIR}/contrib/pngsuite/basn4a08.png + ${CMAKE_CURRENT_SOURCE_DIR}/contrib/pngsuite/basn4a16.png + ${CMAKE_CURRENT_SOURCE_DIR}/contrib/pngsuite/basn6a08.png + ${CMAKE_CURRENT_SOURCE_DIR}/contrib/pngsuite/basn6a16.png + ${CMAKE_CURRENT_SOURCE_DIR}/contrib/pngsuite/ftbbn0g01.png + ${CMAKE_CURRENT_SOURCE_DIR}/contrib/pngsuite/ftbbn0g02.png + ${CMAKE_CURRENT_SOURCE_DIR}/contrib/pngsuite/ftbbn0g04.png + ${CMAKE_CURRENT_SOURCE_DIR}/contrib/pngsuite/ftbbn2c16.png + ${CMAKE_CURRENT_SOURCE_DIR}/contrib/pngsuite/ftbbn3p08.png + ${CMAKE_CURRENT_SOURCE_DIR}/contrib/pngsuite/ftbgn2c16.png + ${CMAKE_CURRENT_SOURCE_DIR}/contrib/pngsuite/ftbgn3p08.png + ${CMAKE_CURRENT_SOURCE_DIR}/contrib/pngsuite/ftbrn2c08.png + ${CMAKE_CURRENT_SOURCE_DIR}/contrib/pngsuite/ftbwn0g16.png + ${CMAKE_CURRENT_SOURCE_DIR}/contrib/pngsuite/ftbwn3p08.png + ${CMAKE_CURRENT_SOURCE_DIR}/contrib/pngsuite/ftbyn3p08.png + ${CMAKE_CURRENT_SOURCE_DIR}/contrib/pngsuite/ftp0n0g08.png + ${CMAKE_CURRENT_SOURCE_DIR}/contrib/pngsuite/ftp0n2c08.png + ${CMAKE_CURRENT_SOURCE_DIR}/contrib/pngsuite/ftp0n3p08.png + ${CMAKE_CURRENT_SOURCE_DIR}/contrib/pngsuite/ftp1n3p08.png + ) +endif() + +# Ensure the CMAKE_LIBRARY_OUTPUT_DIRECTORY is set +IF(NOT CMAKE_LIBRARY_OUTPUT_DIRECTORY) + SET(CMAKE_LIBRARY_OUTPUT_DIRECTORY "lib") +ENDIF(NOT CMAKE_LIBRARY_OUTPUT_DIRECTORY) + +# Set a variable with CMake code which: +# Creates a symlink from src to dest (if possible) or alternatively +# copies if different. +macro(CREATE_SYMLINK SRC_FILE DEST_FILE) + FILE(REMOVE ${CMAKE_LIBRARY_OUTPUT_DIRECTORY}/${DEST_FILE}) + if(WIN32 AND NOT CYGWIN AND NOT MSYS) + ADD_CUSTOM_COMMAND( + OUTPUT ${CMAKE_LIBRARY_OUTPUT_DIRECTORY}/${DEST_FILE} ${CMAKE_CURRENT_BINARY_DIR}/${DEST_FILE} + COMMAND ${CMAKE_COMMAND} -E copy_if_different "${SRC_FILE}" ${CMAKE_LIBRARY_OUTPUT_DIRECTORY}/${DEST_FILE} + COMMAND ${CMAKE_COMMAND} -E copy_if_different "${SRC_FILE}" ${CMAKE_CURRENT_BINARY_DIR}/${DEST_FILE} + DEPENDS ${PNG_LIB_TARGETS} + ) + ADD_CUSTOM_TARGET(${DEST_FILE}_COPY ALL DEPENDS ${CMAKE_LIBRARY_OUTPUT_DIRECTORY}/${DEST_FILE}) + else(WIN32 AND NOT CYGWIN AND NOT MSYS) + get_filename_component(LINK_TARGET "${SRC_FILE}" NAME) + execute_process(COMMAND ${CMAKE_COMMAND} -E create_symlink "${LINK_TARGET}" ${CMAKE_LIBRARY_OUTPUT_DIRECTORY}/${DEST_FILE} WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}) + execute_process(COMMAND ${CMAKE_COMMAND} -E create_symlink "${LINK_TARGET}" ${DEST_FILE} WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}) + endif(WIN32 AND NOT CYGWIN AND NOT MSYS) +endmacro() + +# libpng is a library so default to 'lib' +if(NOT DEFINED CMAKE_INSTALL_LIBDIR) + set(CMAKE_INSTALL_LIBDIR lib) +endif(NOT DEFINED CMAKE_INSTALL_LIBDIR) + +# CREATE PKGCONFIG FILES +# we use the same files like ./configure, so we have to set its vars +# Only do this on Windows for Cygwin - the files don't make much sense outside +# a UNIX look alike +if(NOT WIN32 OR CYGWIN OR MINGW) + set(prefix ${CMAKE_INSTALL_PREFIX}) + set(exec_prefix ${CMAKE_INSTALL_PREFIX}) + set(libdir ${CMAKE_INSTALL_PREFIX}/${CMAKE_INSTALL_LIBDIR}) + set(includedir ${CMAKE_INSTALL_PREFIX}/include) + set(LIBS "-lz -lm") + configure_file(${CMAKE_CURRENT_SOURCE_DIR}/libpng.pc.in + ${CMAKE_CURRENT_BINARY_DIR}/${PNGLIB_NAME}.pc @ONLY) + CREATE_SYMLINK(${PNGLIB_NAME}.pc libpng.pc) + + configure_file(${CMAKE_CURRENT_SOURCE_DIR}/libpng-config.in + ${CMAKE_CURRENT_BINARY_DIR}/${PNGLIB_NAME}-config @ONLY) + CREATE_SYMLINK(${PNGLIB_NAME}-config libpng-config) +endif(NOT WIN32 OR CYGWIN OR MINGW) + +# SET UP LINKS +if(PNG_SHARED) + set_target_properties(${PNG_LIB_NAME} PROPERTIES +# VERSION 16.${PNGLIB_RELEASE}.1.6.12 + VERSION 16.${PNGLIB_RELEASE}.0 + SOVERSION 16 + CLEAN_DIRECT_OUTPUT 1) +endif() +if(PNG_STATIC) + # MSVC doesn't use a different file extension for shared vs. static + # libs. We are able to change OUTPUT_NAME to remove the _static + # for all other platforms. + if(NOT MSVC) + set_target_properties(${PNG_LIB_NAME_STATIC} PROPERTIES + OUTPUT_NAME ${PNG_LIB_NAME} + CLEAN_DIRECT_OUTPUT 1) + endif() +endif() + +# If CMake > 2.4.x, we set a variable used below to export +# targets to an export file. +# TODO: Use VERSION_GREATER after our cmake_minimum_required >= 2.6.2 +if(CMAKE_MAJOR_VERSION GREATER 1 AND CMAKE_MINOR_VERSION GREATER 4) + set(PNG_EXPORT_RULE EXPORT libpng) +elseif(CMAKE_MAJOR_VERSION GREATER 2) # future proof + set(PNG_EXPORT_RULE EXPORT libpng) +endif() + +# INSTALL +if(NOT SKIP_INSTALL_LIBRARIES AND NOT SKIP_INSTALL_ALL ) + install(TARGETS ${PNG_LIB_TARGETS} + ${PNG_EXPORT_RULE} + RUNTIME DESTINATION bin + LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR} + ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}) + + if(PNG_SHARED) + # Create a symlink for libpng.dll.a => libpng16.dll.a on Cygwin + if(CYGWIN OR MINGW) + get_target_property(BUILD_TARGET_LOCATION ${PNG_LIB_NAME} LOCATION_${CMAKE_BUILD_TYPE}) + CREATE_SYMLINK(${BUILD_TARGET_LOCATION} libpng${CMAKE_IMPORT_LIBRARY_SUFFIX}) + install(FILES ${CMAKE_CURRENT_BINARY_DIR}/libpng${CMAKE_IMPORT_LIBRARY_SUFFIX} + DESTINATION ${CMAKE_INSTALL_LIBDIR}) + endif(CYGWIN OR MINGW) + + if(NOT WIN32) + get_target_property(BUILD_TARGET_LOCATION ${PNG_LIB_NAME} LOCATION_${CMAKE_BUILD_TYPE}) + CREATE_SYMLINK(${BUILD_TARGET_LOCATION} libpng${CMAKE_SHARED_LIBRARY_SUFFIX}) + install(FILES ${CMAKE_CURRENT_BINARY_DIR}/libpng${CMAKE_SHARED_LIBRARY_SUFFIX} + DESTINATION ${CMAKE_INSTALL_LIBDIR}) + endif(NOT WIN32) + endif(PNG_SHARED) + + if(PNG_STATIC) + if(NOT WIN32 OR CYGWIN OR MINGW) + get_target_property(BUILD_TARGET_LOCATION ${PNG_LIB_NAME_STATIC} LOCATION_${CMAKE_BUILD_TYPE}) + CREATE_SYMLINK(${BUILD_TARGET_LOCATION} libpng${CMAKE_STATIC_LIBRARY_SUFFIX}) + install(FILES ${CMAKE_CURRENT_BINARY_DIR}/libpng${CMAKE_STATIC_LIBRARY_SUFFIX} + DESTINATION ${CMAKE_INSTALL_LIBDIR}) + endif(NOT WIN32 OR CYGWIN OR MINGW) + endif() +endif() + +if(NOT SKIP_INSTALL_HEADERS AND NOT SKIP_INSTALL_ALL ) + install(FILES ${libpng_public_hdrs} DESTINATION include) + install(FILES ${libpng_public_hdrs} DESTINATION include/${PNGLIB_NAME}) +endif() +if(NOT SKIP_INSTALL_EXECUTABLES AND NOT SKIP_INSTALL_ALL ) + if(NOT WIN32 OR CYGWIN OR MINGW) + install(PROGRAMS ${CMAKE_CURRENT_BINARY_DIR}/libpng-config DESTINATION bin) + install(PROGRAMS ${CMAKE_CURRENT_BINARY_DIR}/${PNGLIB_NAME}-config + DESTINATION bin) + endif(NOT WIN32 OR CYGWIN OR MINGW) +endif() + +if(NOT SKIP_INSTALL_FILES AND NOT SKIP_INSTALL_ALL ) + # Install man pages + if(NOT PNG_MAN_DIR) + set(PNG_MAN_DIR "share/man") + endif() + install(FILES libpng.3 libpngpf.3 DESTINATION ${PNG_MAN_DIR}/man3) + install(FILES png.5 DESTINATION ${PNG_MAN_DIR}/man5) + # Install pkg-config files + if(NOT WIN32 OR CYGWIN OR MINGW) + install(FILES ${CMAKE_CURRENT_BINARY_DIR}/libpng.pc + DESTINATION ${CMAKE_INSTALL_LIBDIR}/pkgconfig) + install(PROGRAMS ${CMAKE_CURRENT_BINARY_DIR}/libpng-config + DESTINATION bin) + install(FILES ${CMAKE_CURRENT_BINARY_DIR}/${PNGLIB_NAME}.pc + DESTINATION ${CMAKE_INSTALL_LIBDIR}/pkgconfig) + install(PROGRAMS ${CMAKE_CURRENT_BINARY_DIR}/${PNGLIB_NAME}-config + DESTINATION bin) + endif(NOT WIN32 OR CYGWIN OR MINGW) +endif() + +# On versions of CMake that support it, create an export file CMake +# users can include() to import our targets +if(PNG_EXPORT_RULE AND NOT SKIP_INSTALL_EXPORT AND NOT SKIP_INSTALL_ALL ) + install(EXPORT libpng DESTINATION lib/libpng FILE lib${PNG_LIB_NAME}.cmake) +endif() + +# what's with libpng-$VER%.txt and all the extra files? + +# UNINSTALL +# do we need this? + +# DIST +# do we need this? + +# to create msvc import lib for mingw compiled shared lib +# pexports libpng.dll > libpng.def +# lib /def:libpng.def /machine:x86 + diff --git a/png/INSTALL b/png/INSTALL new file mode 100644 index 0000000..b645491 --- /dev/null +++ b/png/INSTALL @@ -0,0 +1,369 @@ + +Installing libpng + +Contents + + I. Simple installation + II. Rebuilding the configure scripts + III. Using scripts/makefile* + IV. Using cmake + V. Directory structure + VI. Building with project files + VII. Building with makefiles +VIII. Configuring libpng for 16-bit platforms + IX. Configuring for DOS + X. Configuring for Medium Model + XI. Prepending a prefix to exported symbols + XII. Configuring for compiler xxx: +XIII. Removing unwanted object code + XIV. Changes to the build and configuration of libpng in libpng-1.5.x + XV. Configuring libpng for multiprocessing + XVI. Other sources of information about libpng: + +I. Simple installation + +On Unix/Linux and similar systems, you can simply type + + ./configure [--prefix=/path] + make check + make install + +and ignore the rest of this document. + +II. Rebuilding the configure scripts + +If configure does not work on your system, or if you have a need to +change configure.ac or Makefile.am, and you have a reasonably +up-to-date set of tools, running ./autogen.sh in a git clone before +running ./configure may fix the problem. To be really sure that you +aren't using any of the included pre-built scripts, you can do this: + + ./configure --enable-maintainer-mode + make maintainer-clean + ./autogen.sh --maintainer --clean + ./autogen.sh --maintainer + ./configure [--prefix=/path] [other options] + make + make install + make check + +III. Using scripts/makefile* + +Instead, you can use one of the custom-built makefiles in the +"scripts" directory + + cp scripts/pnglibconf.h.prebuilt pnglibconf.h + cp scripts/makefile.system makefile + make test + make install + +The files that are presently available in the scripts directory +are listed and described in scripts/README.txt. + +Or you can use one of the "projects" in the "projects" directory. + +Before installing libpng, you must first install zlib, if it +is not already on your system. zlib can usually be found +wherever you got libpng. zlib can be placed in another directory, +at the same level as libpng. + +If your system already has a preinstalled zlib you will still need +to have access to the zlib.h and zconf.h include files that +correspond to the version of zlib that's installed. + +If you wish to test with a particular zlib that is not first in the +standard library search path, put ZLIBLIB, ZLIBINC, CPPFLAGS, LDFLAGS, +and LD_LIBRARY_PATH in your environment before running "make test" +or "make distcheck": + +ZLIBLIB=/path/to/lib export ZLIBLIB +ZLIBINC=/path/to/include export ZLIBINC +CPPFLAGS="-I$ZLIBINC" export CPPFLAGS +LDFLAGS="-L$ZLIBLIB" export LDFLAGS +LD_LIBRARY_PATH="$ZLIBLIB:$LD_LIBRARY_PATH" export LD_LIBRARY_PATH + +If you are using one of the makefile scripts, put ZLIBLIB and ZLIBINC +in your environment and type "make ZLIBLIB=$ZLIBLIB ZLIBINC=$ZLIBINC test". + +IV. Using cmake + +If you want to use "cmake" (see www.cmake.org), type + + cmake . -DCMAKE_INSTALL_PREFIX=/path + make + make install + +V. Directory structure + +You can rename the directories that you downloaded (they +might be called "libpng-x.y.z" or "libpngNN" and "zlib-1.2.8" +or "zlib128") so that you have directories called "zlib" and "libpng". + +Your directory structure should look like this: + + .. (the parent directory) + libpng (this directory) + INSTALL (this file) + README + *.h + *.c + CMakeLists.txt => "cmake" script + configuration files: + configure.ac, configure, Makefile.am, Makefile.in, + autogen.sh, config.guess, ltmain.sh, missing, libpng.pc.in, + libpng-config.in, aclocal.m4, config.h.in, config.sub, + depcomp, install-sh, mkinstalldirs, test-pngtest.sh + contrib + gregbook + libtests + pngminim + pngminus + pngsuite + visupng + projects + visualc71 + vstudio + scripts + makefile.* + *.def (module definition files) + etc. + pngtest.png + etc. + zlib + README + *.h + *.c + contrib + etc. + +If the line endings in the files look funny, you may wish to get the other +distribution of libpng. It is available in both tar.gz (UNIX style line +endings) and zip (DOS style line endings) formats. + +VI. Building with project files + +If you are building libpng with MSVC, you can enter the +libpng projects\visualc6 or visualc71 directory and follow the instructions +in README.txt. + +Otherwise enter the zlib directory and follow the instructions in zlib/README, +then come back here and run "configure" or choose the appropriate +makefile.sys in the scripts directory. + +VII. Building with makefiles + +Copy the file (or files) that you need from the +scripts directory into this directory, for example + + MSDOS example: copy scripts\makefile.msc makefile + copy scripts\pnglibconf.h.prebuilt pnglibconf.h + UNIX example: cp scripts/makefile.std makefile + cp scripts/pnglibconf.h.prebuilt pnglibconf.h + +Read the makefile to see if you need to change any source or +target directories to match your preferences. + +Then read pnglibconf.dfa to see if you want to make any configuration +changes. + +Then just run "make" which will create the libpng library in +this directory and "make test" which will run a quick test that reads +the "pngtest.png" file and writes a "pngout.png" file that should be +identical to it. Look for "9782 zero samples" in the output of the +test. For more confidence, you can run another test by typing +"pngtest pngnow.png" and looking for "289 zero samples" in the output. +Also, you can run "pngtest -m contrib/pngsuite/*.png" and compare +your output with the result shown in contrib/pngsuite/README. + +Most of the makefiles will allow you to run "make install" to +put the library in its final resting place (if you want to +do that, run "make install" in the zlib directory first if necessary). +Some also allow you to run "make test-installed" after you have +run "make install". + +VIII. Configuring libpng for 16-bit platforms + +You will want to look into zconf.h to tell zlib (and thus libpng) that +it cannot allocate more then 64K at a time. Even if you can, the memory +won't be accessible. So limit zlib and libpng to 64K by defining MAXSEG_64K. + +IX. Configuring for DOS + +For DOS users who only have access to the lower 640K, you will +have to limit zlib's memory usage via a png_set_compression_mem_level() +call. See zlib.h or zconf.h in the zlib library for more information. + +X. Configuring for Medium Model + +Libpng's support for medium model has been tested on most of the popular +compilers. Make sure MAXSEG_64K gets defined, USE_FAR_KEYWORD gets +defined, and FAR gets defined to far in pngconf.h, and you should be +all set. Everything in the library (except for zlib's structure) is +expecting far data. You must use the typedefs with the p or pp on +the end for pointers (or at least look at them and be careful). Make +note that the rows of data are defined as png_bytepp, which is +an "unsigned char far * far *". + +XI. Prepending a prefix to exported symbols + +Starting with libpng-1.6.0, you can configure libpng (when using the +"configure" script) to prefix all exported symbols by means of the +configuration option "--with-libpng-prefix=FOO_", where FOO_ can be any +string beginning with a letter and containing only uppercase +and lowercase letters, digits, and the underscore (i.e., a C language +identifier). This creates a set of macros in pnglibconf.h, so this is +transparent to applications; their function calls get transformed by +the macros to use the modified names. + +XII. Configuring for compiler xxx: + +All includes for libpng are in pngconf.h. If you need to add, change +or delete an include, this is the place to do it. +The includes that are not needed outside libpng are placed in pngpriv.h, +which is only used by the routines inside libpng itself. +The files in libpng proper only include pngpriv.h and png.h, which +in turn includes pngconf.h and, as of libpng-1.5.0, pnglibconf.h. +As of libpng-1.5.0, pngpriv.h also includes three other private header +files, pngstruct.h, pnginfo.h, and pngdebug.h, which contain material +that previously appeared in the public headers. + +XIII. Removing unwanted object code + +There are a bunch of #define's in pngconf.h that control what parts of +libpng are compiled. All the defines end in _SUPPORTED. If you are +never going to use a capability, you can change the #define to #undef +before recompiling libpng and save yourself code and data space, or +you can turn off individual capabilities with defines that begin with +PNG_NO_. + +In libpng-1.5.0 and later, the #define's are in pnglibconf.h instead. + +You can also turn all of the transforms and ancillary chunk capabilities +off en masse with compiler directives that define +PNG_NO_READ[or WRITE]_TRANSFORMS, or PNG_NO_READ[or WRITE]_ANCILLARY_CHUNKS, +or all four, along with directives to turn on any of the capabilities that +you do want. The PNG_NO_READ[or WRITE]_TRANSFORMS directives disable the +extra transformations but still leave the library fully capable of reading +and writing PNG files with all known public chunks. Use of the +PNG_NO_READ[or WRITE]_ANCILLARY_CHUNKS directive produces a library +that is incapable of reading or writing ancillary chunks. If you are +not using the progressive reading capability, you can turn that off +with PNG_NO_PROGRESSIVE_READ (don't confuse this with the INTERLACING +capability, which you'll still have). + +All the reading and writing specific code are in separate files, so the +linker should only grab the files it needs. However, if you want to +make sure, or if you are building a stand alone library, all the +reading files start with "pngr" and all the writing files start with "pngw". +The files that don't match either (like png.c, pngtrans.c, etc.) +are used for both reading and writing, and always need to be included. +The progressive reader is in pngpread.c + +If you are creating or distributing a dynamically linked library (a .so +or DLL file), you should not remove or disable any parts of the library, +as this will cause applications linked with different versions of the +library to fail if they call functions not available in your library. +The size of the library itself should not be an issue, because only +those sections that are actually used will be loaded into memory. + +XIV. Changes to the build and configuration of libpng in libpng-1.5.x + +Details of internal changes to the library code can be found in the CHANGES +file and in the GIT repository logs. These will be of no concern to the vast +majority of library users or builders; however, the few who configure libpng +to a non-default feature set may need to change how this is done. + +There should be no need for library builders to alter build scripts if +these use the distributed build support - configure or the makefiles - +however, users of the makefiles may care to update their build scripts +to build pnglibconf.h where the corresponding makefile does not do so. + +Building libpng with a non-default configuration has changed completely. +The old method using pngusr.h should still work correctly even though the +way pngusr.h is used in the build has been changed; however, library +builders will probably want to examine the changes to take advantage of +new capabilities and to simplify their build system. + +A. Specific changes to library configuration capabilities + +The exact mechanism used to control attributes of API functions has +changed. A single set of operating system independent macro definitions +is used and operating system specific directives are defined in +pnglibconf.h + +As part of this the mechanism used to choose procedure call standards on +those systems that allow a choice has been changed. At present this only +affects certain Microsoft (DOS, Windows) and IBM (OS/2) operating systems +running on Intel processors. As before, PNGAPI is defined where required +to control the exported API functions; however, two new macros, PNGCBAPI +and PNGCAPI, are used instead for callback functions (PNGCBAPI) and +(PNGCAPI) for functions that must match a C library prototype (currently +only png_longjmp_ptr, which must match the C longjmp function.) The new +approach is documented in pngconf.h + +Despite these changes, libpng 1.5.0 only supports the native C function +calling standard on those platforms tested so far (__cdecl on Microsoft +Windows). This is because the support requirements for alternative +calling conventions seem to no longer exist. Developers who find it +necessary to set PNG_API_RULE to 1 should advise the mailing list +(png-mng-implement) of this and library builders who use Openwatcom and +therefore set PNG_API_RULE to 2 should also contact the mailing list. + +B. Changes to the configuration mechanism + +Prior to libpng-1.5.0 library builders who needed to configure libpng +had either to modify the exported pngconf.h header file to add system +specific configuration or had to write feature selection macros into +pngusr.h and cause this to be included into pngconf.h by defining +PNG_USER_CONFIG. The latter mechanism had the disadvantage that an +application built without PNG_USER_CONFIG defined would see the +unmodified, default, libpng API and thus would probably fail to link. + +These mechanisms still work in the configure build and in any makefile +build that builds pnglibconf.h, although the feature selection macros +have changed somewhat as described above. In 1.5.0, however, pngusr.h is +processed only once, when the exported header file pnglibconf.h is built. +pngconf.h no longer includes pngusr.h, therefore pngusr.h is ignored after the +build of pnglibconf.h and it is never included in an application build. + +The rarely used alternative of adding a list of feature macros to the +CPPFLAGS setting in the build also still works; however, the macros will be +copied to pnglibconf.h and this may produce macro redefinition warnings +when the individual C files are compiled. + +All configuration now only works if pnglibconf.h is built from +scripts/pnglibconf.dfa. This requires the program awk. Brian Kernighan +(the original author of awk) maintains C source code of that awk and this +and all known later implementations (often called by subtly different +names - nawk and gawk for example) are adequate to build pnglibconf.h. +The Sun Microsystems (now Oracle) program 'awk' is an earlier version +and does not work; this may also apply to other systems that have a +functioning awk called 'nawk'. + +Configuration options are now documented in scripts/pnglibconf.dfa. This +file also includes dependency information that ensures a configuration is +consistent; that is, if a feature is switched off dependent features are +also removed. As a recommended alternative to using feature macros in +pngusr.h a system builder may also define equivalent options in pngusr.dfa +(or, indeed, any file) and add that to the configuration by setting +DFA_XTRA to the file name. The makefiles in contrib/pngminim illustrate +how to do this, and a case where pngusr.h is still required. + +XV. Configuring libpng for multiprocessing + +Libpng uses setjmp()/longjmp() for error handling. Unfortunately setjmp() +is known to be not thread-safe on some platforms and we don't know of +any platform where it is guaranteed to be thread-safe. Therefore, if +your application is going to be using multiple threads, you should +configure libpng with PNG_NO_SETJMP in your pngusr.dfa file, with +-DPNG_NO_SETJMP on your compile line, or with + + #undef PNG_SETJMP_SUPPORTED + +in your pnglibconf.h or pngusr.h. + +XVI. Other sources of information about libpng: + +Further information can be found in the README and libpng-manual.txt +files, in the individual makefiles, in png.h, and the manual pages +libpng.3 and png.5. diff --git a/png/Jamfile b/png/Jamfile new file mode 100644 index 0000000..def7495 --- /dev/null +++ b/png/Jamfile @@ -0,0 +1,32 @@ + +#PREF_CCFLAGS = $(CCOPTFLAG) ; # Turn optimisation on +PREF_CCFLAGS = $(CCDEBUGFLAG) ; # Debugging flags +PREF_LINKFLAGS = $(LINKDEBUGFLAG) ; + +Libraries = libpng ; +Executables = ; +Headers = png.h ; + +HDRS = $(ZINC) ; + +# png library +LIBSRCS = + png.c + pngerror.c + pngget.c + pngmem.c + pngpread.c + pngread.c + pngrio.c + pngrtran.c + pngrutil.c + pngset.c + pngtrans.c + pngwio.c + pngwrite.c + pngwtran.c + pngwutil.c + ; + +Library libpng : $(LIBSRCS) ; + diff --git a/png/LICENSE b/png/LICENSE new file mode 100644 index 0000000..b77abdd --- /dev/null +++ b/png/LICENSE @@ -0,0 +1,111 @@ + +This copy of the libpng notices is provided for your convenience. In case of +any discrepancy between this copy and the notices in the file png.h that is +included in the libpng distribution, the latter shall prevail. + +COPYRIGHT NOTICE, DISCLAIMER, and LICENSE: + +If you modify libpng you may insert additional notices immediately following +this sentence. + +This code is released under the libpng license. + +libpng versions 1.2.6, August 15, 2004, through 1.6.12, June 12, 2014, are +Copyright (c) 2004, 2006-2014 Glenn Randers-Pehrson, and are +distributed according to the same disclaimer and license as libpng-1.2.5 +with the following individual added to the list of Contributing Authors + + Cosmin Truta + +libpng versions 1.0.7, July 1, 2000, through 1.2.5 - October 3, 2002, are +Copyright (c) 2000-2002 Glenn Randers-Pehrson, and are +distributed according to the same disclaimer and license as libpng-1.0.6 +with the following individuals added to the list of Contributing Authors + + Simon-Pierre Cadieux + Eric S. Raymond + Gilles Vollant + +and with the following additions to the disclaimer: + + There is no warranty against interference with your enjoyment of the + library or against infringement. There is no warranty that our + efforts or the library will fulfill any of your particular purposes + or needs. This library is provided with all faults, and the entire + risk of satisfactory quality, performance, accuracy, and effort is with + the user. + +libpng versions 0.97, January 1998, through 1.0.6, March 20, 2000, are +Copyright (c) 1998, 1999 Glenn Randers-Pehrson, and are +distributed according to the same disclaimer and license as libpng-0.96, +with the following individuals added to the list of Contributing Authors: + + Tom Lane + Glenn Randers-Pehrson + Willem van Schaik + +libpng versions 0.89, June 1996, through 0.96, May 1997, are +Copyright (c) 1996, 1997 Andreas Dilger +Distributed according to the same disclaimer and license as libpng-0.88, +with the following individuals added to the list of Contributing Authors: + + John Bowler + Kevin Bracey + Sam Bushell + Magnus Holmgren + Greg Roelofs + Tom Tanner + +libpng versions 0.5, May 1995, through 0.88, January 1996, are +Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc. + +For the purposes of this copyright and license, "Contributing Authors" +is defined as the following set of individuals: + + Andreas Dilger + Dave Martindale + Guy Eric Schalnat + Paul Schmidt + Tim Wegner + +The PNG Reference Library is supplied "AS IS". The Contributing Authors +and Group 42, Inc. disclaim all warranties, expressed or implied, +including, without limitation, the warranties of merchantability and of +fitness for any purpose. The Contributing Authors and Group 42, Inc. +assume no liability for direct, indirect, incidental, special, exemplary, +or consequential damages, which may result from the use of the PNG +Reference Library, even if advised of the possibility of such damage. + +Permission is hereby granted to use, copy, modify, and distribute this +source code, or portions hereof, for any purpose, without fee, subject +to the following restrictions: + +1. The origin of this source code must not be misrepresented. + +2. Altered versions must be plainly marked as such and must not + be misrepresented as being the original source. + +3. This Copyright notice may not be removed or altered from any + source or altered source distribution. + +The Contributing Authors and Group 42, Inc. specifically permit, without +fee, and encourage the use of this source code as a component to +supporting the PNG file format in commercial products. If you use this +source code in a product, acknowledgment is not required but would be +appreciated. + + +A "png_get_copyright" function is available, for convenient use in "about" +boxes and the like: + + printf("%s",png_get_copyright(NULL)); + +Also, the PNG logo (in PNG format, of course) is supplied in the +files "pngbar.png" and "pngbar.jpg (88x31) and "pngnow.png" (98x31). + +Libpng is OSI Certified Open Source Software. OSI Certified Open Source is a +certification mark of the Open Source Initiative. + +Glenn Randers-Pehrson +glennrp at users.sourceforge.net +June 12, 2014 diff --git a/png/README b/png/README new file mode 100644 index 0000000..dc6c00b --- /dev/null +++ b/png/README @@ -0,0 +1,202 @@ +README for libpng version 1.6.12 - June 12, 2014 (shared library 16.0) +See the note about version numbers near the top of png.h + +See INSTALL for instructions on how to install libpng. + +Libpng comes in several distribution formats. Get libpng-*.tar.gz or +libpng-*.tar.xz or if you want UNIX-style line endings in the text files, +or lpng*.7z or lpng*.zip if you want DOS-style line endings. + +Version 0.89 was the first official release of libpng. Don't let the +fact that it's the first release fool you. The libpng library has been in +extensive use and testing since mid-1995. By late 1997 it had +finally gotten to the stage where there hadn't been significant +changes to the API in some time, and people have a bad feeling about +libraries with versions < 1.0. Version 1.0.0 was released in +March 1998. + +**** +Note that some of the changes to the png_info structure render this +version of the library binary incompatible with libpng-0.89 or +earlier versions if you are using a shared library. The type of the +"filler" parameter for png_set_filler() has changed from png_byte to +png_uint_32, which will affect shared-library applications that use +this function. + +To avoid problems with changes to the internals of png_info_struct, +new APIs have been made available in 0.95 to avoid direct application +access to info_ptr. These functions are the png_set_ and +png_get_ functions. These functions should be used when +accessing/storing the info_struct data, rather than manipulating it +directly, to avoid such problems in the future. + +It is important to note that the APIs do not make current programs +that access the info struct directly incompatible with the new +library. However, it is strongly suggested that new programs use +the new APIs (as shown in example.c and pngtest.c), and older programs +be converted to the new format, to facilitate upgrades in the future. +**** + +Additions since 0.90 include the ability to compile libpng as a +Windows DLL, and new APIs for accessing data in the info struct. +Experimental functions include the ability to set weighting and cost +factors for row filter selection, direct reads of integers from buffers +on big-endian processors that support misaligned data access, faster +methods of doing alpha composition, and more accurate 16->8 bit color +conversion. + +The additions since 0.89 include the ability to read from a PNG stream +which has had some (or all) of the signature bytes read by the calling +application. This also allows the reading of embedded PNG streams that +do not have the PNG file signature. As well, it is now possible to set +the library action on the detection of chunk CRC errors. It is possible +to set different actions based on whether the CRC error occurred in a +critical or an ancillary chunk. + +The changes made to the library, and bugs fixed are based on discussions +on the PNG-implement mailing list and not on material submitted +privately to Guy, Andreas, or Glenn. They will forward any good +suggestions to the list. + +For a detailed description on using libpng, read libpng-manual.txt. For +examples of libpng in a program, see example.c and pngtest.c. For usage +information and restrictions (what little they are) on libpng, see +png.h. For a description on using zlib (the compression library used by +libpng) and zlib's restrictions, see zlib.h + +I have included a general makefile, as well as several machine and +compiler specific ones, but you may have to modify one for your own needs. + +You should use zlib 1.0.4 or later to run this, but it MAY work with +versions as old as zlib 0.95. Even so, there are bugs in older zlib +versions which can cause the output of invalid compression streams for +some images. You will definitely need zlib 1.0.4 or later if you are +taking advantage of the MS-DOS "far" structure allocation for the small +and medium memory models. You should also note that zlib is a +compression library that is useful for more things than just PNG files. +You can use zlib as a drop-in replacement for fread() and fwrite() if +you are so inclined. + +zlib should be available at the same place that libpng is, or at zlib.net. + +You may also want a copy of the PNG specification. It is available +as an RFC, a W3C Recommendation, and an ISO/IEC Standard. You can find +these at http://www.libpng.org/pub/png/documents/ + +This code is currently being archived at libpng.sf.net in the +[DOWNLOAD] area, and at ftp://ftp.simplesystems.org. If you can't find it +in any of those places, e-mail me, and I'll help you find it. + +If you have any code changes, requests, problems, etc., please e-mail +them to me. Also, I'd appreciate any make files or project files, +and any modifications you needed to make to get libpng to compile, +along with a #define variable to tell what compiler/system you are on. +If you needed to add transformations to libpng, or wish libpng would +provide the image in a different way, drop me a note (and code, if +possible), so I can consider supporting the transformation. +Finally, if you get any warning messages when compiling libpng +(note: not zlib), and they are easy to fix, I'd appreciate the +fix. Please mention "libpng" somewhere in the subject line. Thanks. + +This release was created and will be supported by myself (of course +based in a large way on Guy's and Andreas' earlier work), and the PNG +development group. + +Send comments/corrections/commendations to png-mng-implement at +lists.sourceforge.net (subscription required; visit +https://lists.sourceforge.net/lists/listinfo/png-mng-implement +to subscribe) or to glennrp at users.sourceforge.net + +You can't reach Guy, the original libpng author, at the addresses +given in previous versions of this document. He and Andreas will +read mail addressed to the png-implement list, however. + +Please do not send general questions about PNG. Send them to +png-mng-misc at lists.sf.net (subscription required; visit +https://lists.sourceforge.net/lists/listinfo/png-mng-misc to +subscribe). If you have a question about something +in the PNG specification that is related to using libpng, send it +to me. Send me any questions that start with "I was using libpng, +and ...". If in doubt, send questions to me. I'll bounce them +to others, if necessary. + +Please do not send suggestions on how to change PNG. We have +been discussing PNG for nineteen years now, and it is official and +finished. If you have suggestions for libpng, however, I'll +gladly listen. Even if your suggestion is not used immediately, +it may be used later. + +Files in this distribution: + + ANNOUNCE => Announcement of this version, with recent changes + CHANGES => Description of changes between libpng versions + KNOWNBUG => List of known bugs and deficiencies + LICENSE => License to use and redistribute libpng + README => This file + TODO => Things not implemented in the current library + Y2KINFO => Statement of Y2K compliance + example.c => Example code for using libpng functions + libpng.3 => manual page for libpng (includes libpng-manual.txt) + libpng-manual.txt => Description of libpng and its functions + libpngpf.3 => manual page for libpng's private functions + png.5 => manual page for the PNG format + png.c => Basic interface functions common to library + png.h => Library function and interface declarations (public) + pngpriv.h => Library function and interface declarations (private) + pngconf.h => System specific library configuration (public) + pngstruct.h => png_struct declaration (private) + pnginfo.h => png_info struct declaration (private) + pngdebug.h => debugging macros (private) + pngerror.c => Error/warning message I/O functions + pngget.c => Functions for retrieving info from struct + pngmem.c => Memory handling functions + pngbar.png => PNG logo, 88x31 + pngnow.png => PNG logo, 98x31 + pngpread.c => Progressive reading functions + pngread.c => Read data/helper high-level functions + pngrio.c => Lowest-level data read I/O functions + pngrtran.c => Read data transformation functions + pngrutil.c => Read data utility functions + pngset.c => Functions for storing data into the info_struct + pngtest.c => Library test program + pngtest.png => Library test sample image + pngtrans.c => Common data transformation functions + pngwio.c => Lowest-level write I/O functions + pngwrite.c => High-level write functions + pngwtran.c => Write data transformations + pngwutil.c => Write utility functions + arm => Contains optimized code for the ARM platform + contrib => Contributions + examples => Example programs + gregbook => source code for PNG reading and writing, from + Greg Roelofs' "PNG: The Definitive Guide", + O'Reilly, 1999 + libtests => Test programs + pngminim => Minimal decoder, encoder, and progressive decoder + programs demonstrating use of pngusr.dfa + pngminus => Simple pnm2png and png2pnm programs + pngsuite => Test images + tools => Various tools + visupng => Contains a MSVC workspace for VisualPng + projects => Contains project files and workspaces for + building a DLL + owatcom => Contains a WATCOM project for building libpng + visualc71 => Contains a Microsoft Visual C++ (MSVC) + workspace for building libpng and zlib + vstudio => Contains a Microsoft Visual C++ (MSVC) + workspace for building libpng and zlib + scripts => Directory containing scripts for building libpng: + (see scripts/README.txt for the list of scripts) + +Good luck, and happy coding. + +-Glenn Randers-Pehrson (current maintainer, since 1998) + Internet: glennrp at users.sourceforge.net + +-Andreas Eric Dilger (former maintainer, 1996-1997) + Internet: adilger at enel.ucalgary.ca + Web: http://www-mddsp.enel.ucalgary.ca/People/adilger/ + +-Guy Eric Schalnat (original author and former maintainer, 1995-1996) + (formerly of Group 42, Inc) + Internet: gschal at infinet.com diff --git a/png/TODO b/png/TODO new file mode 100644 index 0000000..7263377 --- /dev/null +++ b/png/TODO @@ -0,0 +1,29 @@ +/* +TODO - list of things to do for libpng: + +Final bug fixes. +Better C++ wrapper/full C++ implementation? +Fix problem with C++ and EXTERN "C". +cHRM transformation. +Remove setjmp/longjmp usage in favor of returning error codes. +Palette creation. +Add "grayscale->palette" transformation and "palette->grayscale" detection. +Improved dithering. +Multi-lingual error and warning message support. +Complete sRGB transformation (presently it simply uses gamma=0.45455). +Make profile checking optional via a png_set_something() call. +Man pages for function calls. +Better documentation. +Better filter selection + (counting huffman bits/precompression? filter inertia? filter costs?). +Histogram creation. +Text conversion between different code pages (Latin-1 -> Mac and DOS). +Avoid building gamma tables whenever possible. +Use greater precision when changing to linear gamma for compositing against + background and doing rgb-to-gray transformation. +Investigate pre-incremented loop counters and other loop constructions. +Add interpolated method of handling interlacing. +Switch to the simpler zlib (zlib/libpng) license if legally possible. +Extend pngvalid.c to validate more of the libpng transformations. + +*/ diff --git a/png/afiles b/png/afiles new file mode 100644 index 0000000..9e4e485 --- /dev/null +++ b/png/afiles @@ -0,0 +1,44 @@ +afiles +Jamfile +ANNOUNCE +CHANGES +CMakeLists.txt +INSTALL +LICENSE +README +TODO +configure +example.c +libpng-config.in +libpng-manual.txt +libpng.3 +libpng.pc.in +libpngpf.3 +png.5 +png.c +png.h +pngbar.jpg +pngbar.png +pngconf.h +pngdebug.h +pngerror.c +pngget.c +pnginfo.h +pnglibconf.h +pngmem.c +pngnow.png +pngpread.c +pngpriv.h +pngread.c +pngrio.c +pngrtran.c +pngrutil.c +pngset.c +pngstruct.h +pngtest.c +pngtest.png +pngtrans.c +pngwio.c +pngwrite.c +pngwtran.c +pngwutil.c diff --git a/png/configure b/png/configure new file mode 100644 index 0000000..9406e1f --- /dev/null +++ b/png/configure @@ -0,0 +1,19 @@ + +echo " + There is no \"configure\" script in this distribution (*.zip or *.7z) of + libpng-1.6.12. + + Instead, please copy the appropriate makefile for your system from the + \"scripts\" directory. Read the INSTALL file for more details. + + Update, July 2004: you can get a \"configure\" based distribution + from the libpng distribution sites. Download the file + libpng-1.6.12.tar.gz, libpng-1.6.12.tar.xz, or libpng-1.6.12.tar.bz2 + + If the line endings in the files look funny, which is likely to be the + case if you were trying to run \"configure\" on a Linux machine, you may + wish to get the other distribution of libpng. It is available in both + tar.gz/tar.xz (UNIX style line endings, with \"configure\") and .7z/.zip + (DOS style line endings, without \"configure\") formats. +" + diff --git a/png/example.c b/png/example.c new file mode 100644 index 0000000..e9747a8 --- /dev/null +++ b/png/example.c @@ -0,0 +1,1061 @@ + +#if 0 /* in case someone actually tries to compile this */ + +/* example.c - an example of using libpng + * Last changed in libpng 1.6.11 [June 12, 2014] + * Maintained 1998-2014 Glenn Randers-Pehrson + * Maintained 1996, 1997 Andreas Dilger) + * Written 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) + * To the extent possible under law, the authors have waived + * all copyright and related or neighboring rights to this file. + * This work is published from: United States. + */ + +/* This is an example of how to use libpng to read and write PNG files. + * The file libpng-manual.txt is much more verbose then this. If you have not + * read it, do so first. This was designed to be a starting point of an + * implementation. This is not officially part of libpng, is hereby placed + * in the public domain, and therefore does not require a copyright notice. + * + * This file does not currently compile, because it is missing certain + * parts, like allocating memory to hold an image. You will have to + * supply these parts to get it to compile. For an example of a minimal + * working PNG reader/writer, see pngtest.c, included in this distribution; + * see also the programs in the contrib directory. + */ + +/* The simple, but restricted, approach to reading a PNG file or data stream + * just requires two function calls, as in the following complete program. + * Writing a file just needs one function call, so long as the data has an + * appropriate layout. + * + * The following code reads PNG image data from a file and writes it, in a + * potentially new format, to a new file. While this code will compile there is + * minimal (insufficient) error checking; for a more realistic version look at + * contrib/examples/pngtopng.c + */ +#include +#include +#include +#include +#include +#include + +int main(int argc, const char **argv) +{ + if (argc == 3) + { + png_image image; /* The control structure used by libpng */ + + /* Initialize the 'png_image' structure. */ + memset(&image, 0, (sizeof image)); + image.version = PNG_IMAGE_VERSION; + + /* The first argument is the file to read: */ + if (png_image_begin_read_from_file(&image, argv[1])) + { + png_bytep buffer; + + /* Set the format in which to read the PNG file; this code chooses a + * simple sRGB format with a non-associated alpha channel, adequate to + * store most images. + */ + image.format = PNG_FORMAT_RGBA; + + /* Now allocate enough memory to hold the image in this format; the + * PNG_IMAGE_SIZE macro uses the information about the image (width, + * height and format) stored in 'image'. + */ + buffer = malloc(PNG_IMAGE_SIZE(image)); + + /* If enough memory was available read the image in the desired format + * then write the result out to the new file. 'background' is not + * necessary when reading the image because the alpha channel is + * preserved; if it were to be removed, for example if we requested + * PNG_FORMAT_RGB, then either a solid background color would have to + * be supplied or the output buffer would have to be initialized to the + * actual background of the image. + * + * The fourth argument to png_image_finish_read is the 'row_stride' - + * this is the number of components allocated for the image in each + * row. It has to be at least as big as the value returned by + * PNG_IMAGE_ROW_STRIDE, but if you just allocate space for the + * default, minimum, size using PNG_IMAGE_SIZE as above you can pass + * zero. + * + * The final argument is a pointer to a buffer for the colormap; + * colormaps have exactly the same format as a row of image pixels (so + * you choose what format to make the colormap by setting + * image.format). A colormap is only returned if + * PNG_FORMAT_FLAG_COLORMAP is also set in image.format, so in this + * case NULL is passed as the final argument. If you do want to force + * all images into an index/color-mapped format then you can use: + * + * PNG_IMAGE_COLORMAP_SIZE(image) + * + * to find the maximum size of the colormap in bytes. + */ + if (buffer != NULL && + png_image_finish_read(&image, NULL/*background*/, buffer, + 0/*row_stride*/, NULL/*colormap*/)) + { + /* Now write the image out to the second argument. In the write + * call 'convert_to_8bit' allows 16-bit data to be squashed down to + * 8 bits; this isn't necessary here because the original read was + * to the 8-bit format. + */ + if (png_image_write_to_file(&image, argv[2], 0/*convert_to_8bit*/, + buffer, 0/*row_stride*/, NULL/*colormap*/)) + { + /* The image has been written successfully. */ + exit(0); + } + } + + else + { + /* Calling png_free_image is optional unless the simplified API was + * not run to completion. In this case if there wasn't enough + * memory for 'buffer' we didn't complete the read, so we must free + * the image: + */ + if (buffer == NULL) + png_free_image(&image); + + else + free(buffer); + } + + /* Something went wrong reading or writing the image. libpng stores a + * textual message in the 'png_image' structure: + */ + fprintf(stderr, "pngtopng: error: %s\n", image.message); + exit (1); + } + + fprintf(stderr, "pngtopng: usage: pngtopng input-file output-file\n"); + exit(1); +} + +/* That's it ;-) Of course you probably want to do more with PNG files than + * just converting them all to 32-bit RGBA PNG files; you can do that between + * the call to png_image_finish_read and png_image_write_to_file. You can also + * ask for the image data to be presented in a number of different formats. You + * do this by simply changing the 'format' parameter set before allocating the + * buffer. + * + * The format parameter consists of five flags that define various aspects of + * the image, you can simply add these together to get the format or you can use + * one of the predefined macros from png.h (as above): + * + * PNG_FORMAT_FLAG_COLOR: if set the image will have three color components per + * pixel (red, green and blue), if not set the image will just have one + * luminance (grayscale) component. + * + * PNG_FORMAT_FLAG_ALPHA: if set each pixel in the image will have an additional + * alpha value; a linear value that describes the degree the image pixel + * covers (overwrites) the contents of the existing pixel on the display. + * + * PNG_FORMAT_FLAG_LINEAR: if set the components of each pixel will be returned + * as a series of 16-bit linear values, if not set the components will be + * returned as a series of 8-bit values encoded according to the 'sRGB' + * standard. The 8-bit format is the normal format for images intended for + * direct display, because almost all display devices do the inverse of the + * sRGB transformation to the data they receive. The 16-bit format is more + * common for scientific data and image data that must be further processed; + * because it is linear simple math can be done on the component values. + * Regardless of the setting of this flag the alpha channel is always linear, + * although it will be 8 bits or 16 bits wide as specified by the flag. + * + * PNG_FORMAT_FLAG_BGR: if set the components of a color pixel will be returned + * in the order blue, then green, then red. If not set the pixel components + * are in the order red, then green, then blue. + * + * PNG_FORMAT_FLAG_AFIRST: if set the alpha channel (if present) precedes the + * color or grayscale components. If not set the alpha channel follows the + * components. + * + * You do not have to read directly from a file. You can read from memory or, + * on systems that support it, from a FILE*. This is controlled by + * the particular png_image_read_from_ function you call at the start. Likewise + * on write you can write to a FILE* if your system supports it. Check the + * macro PNG_STDIO_SUPPORTED to see if stdio support has been included in your + * libpng build. + * + * If you read 16-bit (PNG_FORMAT_FLAG_LINEAR) data you may need to write it in + * the 8-bit format for display. You do this by setting the convert_to_8bit + * flag to 'true'. + * + * Don't repeatedly convert between the 8-bit and 16-bit forms. There is + * significant data loss when 16-bit data is converted to the 8-bit encoding and + * the current libpng implementation of convertion to 16-bit is also + * significantly lossy. The latter will be fixed in the future, but the former + * is unavoidable - the 8-bit format just doesn't have enough resolution. + */ + +/* If your program needs more information from the PNG data it reads, or if you + * need to do more complex transformations, or minimise transformations, on the + * data you read, then you must use one of the several lower level libpng + * interfaces. + * + * All these interfaces require that you do your own error handling - your + * program must be able to arrange for control to return to your own code any + * time libpng encounters a problem. There are several ways to do this, but the + * standard way is to use the ANSI-C (C90) interface to establish a + * return point within your own code. You must do this if you do not use the + * simplified interface (above). + * + * The first step is to include the header files you need, including the libpng + * header file. Include any standard headers and feature test macros your + * program requires before including png.h: + */ +#include + + /* The png_jmpbuf() macro, used in error handling, became available in + * libpng version 1.0.6. If you want to be able to run your code with older + * versions of libpng, you must define the macro yourself (but only if it + * is not already defined by libpng!). + */ + +#ifndef png_jmpbuf +# define png_jmpbuf(png_ptr) ((png_ptr)->png_jmpbuf) +#endif + +/* Check to see if a file is a PNG file using png_sig_cmp(). png_sig_cmp() + * returns zero if the image is a PNG and nonzero if it isn't a PNG. + * + * The function check_if_png() shown here, but not used, returns nonzero (true) + * if the file can be opened and is a PNG, 0 (false) otherwise. + * + * If this call is successful, and you are going to keep the file open, + * you should call png_set_sig_bytes(png_ptr, PNG_BYTES_TO_CHECK); once + * you have created the png_ptr, so that libpng knows your application + * has read that many bytes from the start of the file. Make sure you + * don't call png_set_sig_bytes() with more than 8 bytes read or give it + * an incorrect number of bytes read, or you will either have read too + * many bytes (your fault), or you are telling libpng to read the wrong + * number of magic bytes (also your fault). + * + * Many applications already read the first 2 or 4 bytes from the start + * of the image to determine the file type, so it would be easiest just + * to pass the bytes to png_sig_cmp() or even skip that if you know + * you have a PNG file, and call png_set_sig_bytes(). + */ +#define PNG_BYTES_TO_CHECK 4 +int check_if_png(char *file_name, FILE **fp) +{ + char buf[PNG_BYTES_TO_CHECK]; + + /* Open the prospective PNG file. */ + if ((*fp = fopen(file_name, "rb")) == NULL) + return 0; + + /* Read in some of the signature bytes */ + if (fread(buf, 1, PNG_BYTES_TO_CHECK, *fp) != PNG_BYTES_TO_CHECK) + return 0; + + /* Compare the first PNG_BYTES_TO_CHECK bytes of the signature. + Return nonzero (true) if they match */ + + return(!png_sig_cmp(buf, (png_size_t)0, PNG_BYTES_TO_CHECK)); +} + +/* Read a PNG file. You may want to return an error code if the read + * fails (depending upon the failure). There are two "prototypes" given + * here - one where we are given the filename, and we need to open the + * file, and the other where we are given an open file (possibly with + * some or all of the magic bytes read - see comments above). + */ +#ifdef open_file /* prototype 1 */ +void read_png(char *file_name) /* We need to open the file */ +{ + png_structp png_ptr; + png_infop info_ptr; + unsigned int sig_read = 0; + png_uint_32 width, height; + int bit_depth, color_type, interlace_type; + FILE *fp; + + if ((fp = fopen(file_name, "rb")) == NULL) + return (ERROR); + +#else no_open_file /* prototype 2 */ +void read_png(FILE *fp, unsigned int sig_read) /* File is already open */ +{ + png_structp png_ptr; + png_infop info_ptr; + png_uint_32 width, height; + int bit_depth, color_type, interlace_type; +#endif no_open_file /* Only use one prototype! */ + + /* Create and initialize the png_struct with the desired error handler + * functions. If you want to use the default stderr and longjump method, + * you can supply NULL for the last three parameters. We also supply the + * the compiler header file version, so that we know if the application + * was compiled with a compatible version of the library. REQUIRED + */ + png_ptr = png_create_read_struct(PNG_LIBPNG_VER_STRING, + png_voidp user_error_ptr, user_error_fn, user_warning_fn); + + if (png_ptr == NULL) + { + fclose(fp); + return (ERROR); + } + + /* Allocate/initialize the memory for image information. REQUIRED. */ + info_ptr = png_create_info_struct(png_ptr); + if (info_ptr == NULL) + { + fclose(fp); + png_destroy_read_struct(&png_ptr, NULL, NULL); + return (ERROR); + } + + /* Set error handling if you are using the setjmp/longjmp method (this is + * the normal method of doing things with libpng). REQUIRED unless you + * set up your own error handlers in the png_create_read_struct() earlier. + */ + + if (setjmp(png_jmpbuf(png_ptr))) + { + /* Free all of the memory associated with the png_ptr and info_ptr */ + png_destroy_read_struct(&png_ptr, &info_ptr, NULL); + fclose(fp); + /* If we get here, we had a problem reading the file */ + return (ERROR); + } + + /* One of the following I/O initialization methods is REQUIRED */ +#ifdef streams /* PNG file I/O method 1 */ + /* Set up the input control if you are using standard C streams */ + png_init_io(png_ptr, fp); + +#else no_streams /* PNG file I/O method 2 */ + /* If you are using replacement read functions, instead of calling + * png_init_io() here you would call: + */ + png_set_read_fn(png_ptr, (void *)user_io_ptr, user_read_fn); + /* where user_io_ptr is a structure you want available to the callbacks */ +#endif no_streams /* Use only one I/O method! */ + + /* If we have already read some of the signature */ + png_set_sig_bytes(png_ptr, sig_read); + +#ifdef hilevel + /* + * If you have enough memory to read in the entire image at once, + * and you need to specify only transforms that can be controlled + * with one of the PNG_TRANSFORM_* bits (this presently excludes + * quantizing, filling, setting background, and doing gamma + * adjustment), then you can read the entire image (including + * pixels) into the info structure with this call: + */ + png_read_png(png_ptr, info_ptr, png_transforms, NULL); + +#else + /* OK, you're doing it the hard way, with the lower-level functions */ + + /* The call to png_read_info() gives us all of the information from the + * PNG file before the first IDAT (image data chunk). REQUIRED + */ + png_read_info(png_ptr, info_ptr); + + png_get_IHDR(png_ptr, info_ptr, &width, &height, &bit_depth, &color_type, + &interlace_type, NULL, NULL); + + /* Set up the data transformations you want. Note that these are all + * optional. Only call them if you want/need them. Many of the + * transformations only work on specific types of images, and many + * are mutually exclusive. + */ + + /* Tell libpng to strip 16 bit/color files down to 8 bits/color. + * Use accurate scaling if it's available, otherwise just chop off the + * low byte. + */ +#ifdef PNG_READ_SCALE_16_TO_8_SUPPORTED + png_set_scale_16(png_ptr); +#else + png_set_strip_16(png_ptr); +#endif + + /* Strip alpha bytes from the input data without combining with the + * background (not recommended). + */ + png_set_strip_alpha(png_ptr); + + /* Extract multiple pixels with bit depths of 1, 2, and 4 from a single + * byte into separate bytes (useful for paletted and grayscale images). + */ + png_set_packing(png_ptr); + + /* Change the order of packed pixels to least significant bit first + * (not useful if you are using png_set_packing). */ + png_set_packswap(png_ptr); + + /* Expand paletted colors into true RGB triplets */ + if (color_type == PNG_COLOR_TYPE_PALETTE) + png_set_palette_to_rgb(png_ptr); + + /* Expand grayscale images to the full 8 bits from 1, 2, or 4 bits/pixel */ + if (color_type == PNG_COLOR_TYPE_GRAY && bit_depth < 8) + png_set_expand_gray_1_2_4_to_8(png_ptr); + + /* Expand paletted or RGB images with transparency to full alpha channels + * so the data will be available as RGBA quartets. + */ + if (png_get_valid(png_ptr, info_ptr, PNG_INFO_tRNS)) + png_set_tRNS_to_alpha(png_ptr); + + /* Set the background color to draw transparent and alpha images over. + * It is possible to set the red, green, and blue components directly + * for paletted images instead of supplying a palette index. Note that + * even if the PNG file supplies a background, you are not required to + * use it - you should use the (solid) application background if it has one. + */ + + png_color_16 my_background, *image_background; + + if (png_get_bKGD(png_ptr, info_ptr, &image_background)) + png_set_background(png_ptr, image_background, + PNG_BACKGROUND_GAMMA_FILE, 1, 1.0); + else + png_set_background(png_ptr, &my_background, + PNG_BACKGROUND_GAMMA_SCREEN, 0, 1.0); + + /* Some suggestions as to how to get a screen gamma value + * + * Note that screen gamma is the display_exponent, which includes + * the CRT_exponent and any correction for viewing conditions + */ + if (/* We have a user-defined screen gamma value */) + { + screen_gamma = user-defined screen_gamma; + } + /* This is one way that applications share the same screen gamma value */ + else if ((gamma_str = getenv("SCREEN_GAMMA")) != NULL) + { + screen_gamma = atof(gamma_str); + } + /* If we don't have another value */ + else + { + screen_gamma = PNG_DEFAULT_sRGB; /* A good guess for a PC monitor + in a dimly lit room */ + screen_gamma = PNG_GAMMA_MAC_18 or 1.0; /* Good guesses for Mac systems */ + } + + /* Tell libpng to handle the gamma conversion for you. The final call + * is a good guess for PC generated images, but it should be configurable + * by the user at run time by the user. It is strongly suggested that + * your application support gamma correction. + */ + + int intent; + + if (png_get_sRGB(png_ptr, info_ptr, &intent)) + png_set_gamma(png_ptr, screen_gamma, PNG_DEFAULT_sRGB); + else + { + double image_gamma; + if (png_get_gAMA(png_ptr, info_ptr, &image_gamma)) + png_set_gamma(png_ptr, screen_gamma, image_gamma); + else + png_set_gamma(png_ptr, screen_gamma, 0.45455); + } + +#ifdef PNG_READ_QUANTIZE_SUPPORTED + /* Quantize RGB files down to 8 bit palette or reduce palettes + * to the number of colors available on your screen. + */ + if (color_type & PNG_COLOR_MASK_COLOR) + { + int num_palette; + png_colorp palette; + + /* This reduces the image to the application supplied palette */ + if (/* We have our own palette */) + { + /* An array of colors to which the image should be quantized */ + png_color std_color_cube[MAX_SCREEN_COLORS]; + + png_set_quantize(png_ptr, std_color_cube, MAX_SCREEN_COLORS, + MAX_SCREEN_COLORS, NULL, 0); + } + /* This reduces the image to the palette supplied in the file */ + else if (png_get_PLTE(png_ptr, info_ptr, &palette, &num_palette)) + { + png_uint_16p histogram = NULL; + + png_get_hIST(png_ptr, info_ptr, &histogram); + + png_set_quantize(png_ptr, palette, num_palette, + max_screen_colors, histogram, 0); + } + } +#endif /* PNG_READ_QUANTIZE_SUPPORTED */ + + /* Invert monochrome files to have 0 as white and 1 as black */ + png_set_invert_mono(png_ptr); + + /* If you want to shift the pixel values from the range [0,255] or + * [0,65535] to the original [0,7] or [0,31], or whatever range the + * colors were originally in: + */ + if (png_get_valid(png_ptr, info_ptr, PNG_INFO_sBIT)) + { + png_color_8p sig_bit_p; + + png_get_sBIT(png_ptr, info_ptr, &sig_bit_p); + png_set_shift(png_ptr, sig_bit_p); + } + + /* Flip the RGB pixels to BGR (or RGBA to BGRA) */ + if (color_type & PNG_COLOR_MASK_COLOR) + png_set_bgr(png_ptr); + + /* Swap the RGBA or GA data to ARGB or AG (or BGRA to ABGR) */ + png_set_swap_alpha(png_ptr); + + /* Swap bytes of 16 bit files to least significant byte first */ + png_set_swap(png_ptr); + + /* Add filler (or alpha) byte (before/after each RGB triplet) */ + png_set_filler(png_ptr, 0xff, PNG_FILLER_AFTER); + +#ifdef PNG_READ_INTERLACING_SUPPORTED + /* Turn on interlace handling. REQUIRED if you are not using + * png_read_image(). To see how to handle interlacing passes, + * see the png_read_row() method below: + */ + number_passes = png_set_interlace_handling(png_ptr); +#else + number_passes = 1; +#endif /* PNG_READ_INTERLACING_SUPPORTED */ + + + /* Optional call to gamma correct and add the background to the palette + * and update info structure. REQUIRED if you are expecting libpng to + * update the palette for you (ie you selected such a transform above). + */ + png_read_update_info(png_ptr, info_ptr); + + /* Allocate the memory to hold the image using the fields of info_ptr. */ + + /* The easiest way to read the image: */ + png_bytep row_pointers[height]; + + /* Clear the pointer array */ + for (row = 0; row < height; row++) + row_pointers[row] = NULL; + + for (row = 0; row < height; row++) + row_pointers[row] = png_malloc(png_ptr, png_get_rowbytes(png_ptr, + info_ptr)); + + /* Now it's time to read the image. One of these methods is REQUIRED */ +#ifdef entire /* Read the entire image in one go */ + png_read_image(png_ptr, row_pointers); + +#else no_entire /* Read the image one or more scanlines at a time */ + /* The other way to read images - deal with interlacing: */ + + for (pass = 0; pass < number_passes; pass++) + { +#ifdef single /* Read the image a single row at a time */ + for (y = 0; y < height; y++) + { + png_read_rows(png_ptr, &row_pointers[y], NULL, 1); + } + +#else no_single /* Read the image several rows at a time */ + for (y = 0; y < height; y += number_of_rows) + { +#ifdef sparkle /* Read the image using the "sparkle" effect. */ + png_read_rows(png_ptr, &row_pointers[y], NULL, + number_of_rows); +#else no_sparkle /* Read the image using the "rectangle" effect */ + png_read_rows(png_ptr, NULL, &row_pointers[y], + number_of_rows); +#endif no_sparkle /* Use only one of these two methods */ + } + + /* If you want to display the image after every pass, do so here */ +#endif no_single /* Use only one of these two methods */ + } +#endif no_entire /* Use only one of these two methods */ + + /* Read rest of file, and get additional chunks in info_ptr - REQUIRED */ + png_read_end(png_ptr, info_ptr); +#endif hilevel + + /* At this point you have read the entire image */ + + /* Clean up after the read, and free any memory allocated - REQUIRED */ + png_destroy_read_struct(&png_ptr, &info_ptr, NULL); + + /* Close the file */ + fclose(fp); + + /* That's it */ + return (OK); +} + +/* Progressively read a file */ + +int +initialize_png_reader(png_structp *png_ptr, png_infop *info_ptr) +{ + /* Create and initialize the png_struct with the desired error handler + * functions. If you want to use the default stderr and longjump method, + * you can supply NULL for the last three parameters. We also check that + * the library version is compatible in case we are using dynamically + * linked libraries. + */ + *png_ptr = png_create_read_struct(PNG_LIBPNG_VER_STRING, + png_voidp user_error_ptr, user_error_fn, user_warning_fn); + + if (*png_ptr == NULL) + { + *info_ptr = NULL; + return (ERROR); + } + + *info_ptr = png_create_info_struct(png_ptr); + + if (*info_ptr == NULL) + { + png_destroy_read_struct(png_ptr, info_ptr, NULL); + return (ERROR); + } + + if (setjmp(png_jmpbuf((*png_ptr)))) + { + png_destroy_read_struct(png_ptr, info_ptr, NULL); + return (ERROR); + } + + /* This one's new. You will need to provide all three + * function callbacks, even if you aren't using them all. + * If you aren't using all functions, you can specify NULL + * parameters. Even when all three functions are NULL, + * you need to call png_set_progressive_read_fn(). + * These functions shouldn't be dependent on global or + * static variables if you are decoding several images + * simultaneously. You should store stream specific data + * in a separate struct, given as the second parameter, + * and retrieve the pointer from inside the callbacks using + * the function png_get_progressive_ptr(png_ptr). + */ + png_set_progressive_read_fn(*png_ptr, (void *)stream_data, + info_callback, row_callback, end_callback); + + return (OK); +} + +int +process_data(png_structp *png_ptr, png_infop *info_ptr, + png_bytep buffer, png_uint_32 length) +{ + if (setjmp(png_jmpbuf((*png_ptr)))) + { + /* Free the png_ptr and info_ptr memory on error */ + png_destroy_read_struct(png_ptr, info_ptr, NULL); + return (ERROR); + } + + /* This one's new also. Simply give it chunks of data as + * they arrive from the data stream (in order, of course). + * On segmented machines, don't give it any more than 64K. + * The library seems to run fine with sizes of 4K, although + * you can give it much less if necessary (I assume you can + * give it chunks of 1 byte, but I haven't tried with less + * than 256 bytes yet). When this function returns, you may + * want to display any rows that were generated in the row + * callback, if you aren't already displaying them there. + */ + png_process_data(*png_ptr, *info_ptr, buffer, length); + return (OK); +} + +info_callback(png_structp png_ptr, png_infop info) +{ + /* Do any setup here, including setting any of the transformations + * mentioned in the Reading PNG files section. For now, you _must_ + * call either png_start_read_image() or png_read_update_info() + * after all the transformations are set (even if you don't set + * any). You may start getting rows before png_process_data() + * returns, so this is your last chance to prepare for that. + */ +} + +row_callback(png_structp png_ptr, png_bytep new_row, + png_uint_32 row_num, int pass) +{ + /* + * This function is called for every row in the image. If the + * image is interlaced, and you turned on the interlace handler, + * this function will be called for every row in every pass. + * + * In this function you will receive a pointer to new row data from + * libpng called new_row that is to replace a corresponding row (of + * the same data format) in a buffer allocated by your application. + * + * The new row data pointer "new_row" may be NULL, indicating there is + * no new data to be replaced (in cases of interlace loading). + * + * If new_row is not NULL then you need to call + * png_progressive_combine_row() to replace the corresponding row as + * shown below: + */ + + /* Get pointer to corresponding row in our + * PNG read buffer. + */ + png_bytep old_row = ((png_bytep *)our_data)[row_num]; + +#ifdef PNG_READ_INTERLACING_SUPPORTED + /* If both rows are allocated then copy the new row + * data to the corresponding row data. + */ + if ((old_row != NULL) && (new_row != NULL)) + png_progressive_combine_row(png_ptr, old_row, new_row); + + /* + * The rows and passes are called in order, so you don't really + * need the row_num and pass, but I'm supplying them because it + * may make your life easier. + * + * For the non-NULL rows of interlaced images, you must call + * png_progressive_combine_row() passing in the new row and the + * old row, as demonstrated above. You can call this function for + * NULL rows (it will just return) and for non-interlaced images + * (it just does the memcpy for you) if it will make the code + * easier. Thus, you can just do this for all cases: + */ + + png_progressive_combine_row(png_ptr, old_row, new_row); + + /* where old_row is what was displayed for previous rows. Note + * that the first pass (pass == 0 really) will completely cover + * the old row, so the rows do not have to be initialized. After + * the first pass (and only for interlaced images), you will have + * to pass the current row as new_row, and the function will combine + * the old row and the new row. + */ +#endif /* PNG_READ_INTERLACING_SUPPORTED */ +} + +end_callback(png_structp png_ptr, png_infop info) +{ + /* This function is called when the whole image has been read, + * including any chunks after the image (up to and including + * the IEND). You will usually have the same info chunk as you + * had in the header, although some data may have been added + * to the comments and time fields. + * + * Most people won't do much here, perhaps setting a flag that + * marks the image as finished. + */ +} + +/* Write a png file */ +void write_png(char *file_name /* , ... other image information ... */) +{ + FILE *fp; + png_structp png_ptr; + png_infop info_ptr; + png_colorp palette; + + /* Open the file */ + fp = fopen(file_name, "wb"); + if (fp == NULL) + return (ERROR); + + /* Create and initialize the png_struct with the desired error handler + * functions. If you want to use the default stderr and longjump method, + * you can supply NULL for the last three parameters. We also check that + * the library version is compatible with the one used at compile time, + * in case we are using dynamically linked libraries. REQUIRED. + */ + png_ptr = png_create_write_struct(PNG_LIBPNG_VER_STRING, + png_voidp user_error_ptr, user_error_fn, user_warning_fn); + + if (png_ptr == NULL) + { + fclose(fp); + return (ERROR); + } + + /* Allocate/initialize the image information data. REQUIRED */ + info_ptr = png_create_info_struct(png_ptr); + if (info_ptr == NULL) + { + fclose(fp); + png_destroy_write_struct(&png_ptr, NULL); + return (ERROR); + } + + /* Set error handling. REQUIRED if you aren't supplying your own + * error handling functions in the png_create_write_struct() call. + */ + if (setjmp(png_jmpbuf(png_ptr))) + { + /* If we get here, we had a problem writing the file */ + fclose(fp); + png_destroy_write_struct(&png_ptr, &info_ptr); + return (ERROR); + } + + /* One of the following I/O initialization functions is REQUIRED */ + +#ifdef streams /* I/O initialization method 1 */ + /* Set up the output control if you are using standard C streams */ + png_init_io(png_ptr, fp); + +#else no_streams /* I/O initialization method 2 */ + /* If you are using replacement write functions, instead of calling + * png_init_io() here you would call + */ + png_set_write_fn(png_ptr, (void *)user_io_ptr, user_write_fn, + user_IO_flush_function); + /* where user_io_ptr is a structure you want available to the callbacks */ +#endif no_streams /* Only use one initialization method */ + +#ifdef hilevel + /* This is the easy way. Use it if you already have all the + * image info living in the structure. You could "|" many + * PNG_TRANSFORM flags into the png_transforms integer here. + */ + png_write_png(png_ptr, info_ptr, png_transforms, NULL); + +#else + /* This is the hard way */ + + /* Set the image information here. Width and height are up to 2^31, + * bit_depth is one of 1, 2, 4, 8, or 16, but valid values also depend on + * the color_type selected. color_type is one of PNG_COLOR_TYPE_GRAY, + * PNG_COLOR_TYPE_GRAY_ALPHA, PNG_COLOR_TYPE_PALETTE, PNG_COLOR_TYPE_RGB, + * or PNG_COLOR_TYPE_RGB_ALPHA. interlace is either PNG_INTERLACE_NONE or + * PNG_INTERLACE_ADAM7, and the compression_type and filter_type MUST + * currently be PNG_COMPRESSION_TYPE_BASE and PNG_FILTER_TYPE_BASE. REQUIRED + */ + png_set_IHDR(png_ptr, info_ptr, width, height, bit_depth, PNG_COLOR_TYPE_???, + PNG_INTERLACE_????, PNG_COMPRESSION_TYPE_BASE, PNG_FILTER_TYPE_BASE); + + /* Set the palette if there is one. REQUIRED for indexed-color images */ + palette = (png_colorp)png_malloc(png_ptr, PNG_MAX_PALETTE_LENGTH + * (sizeof (png_color))); + /* ... Set palette colors ... */ + png_set_PLTE(png_ptr, info_ptr, palette, PNG_MAX_PALETTE_LENGTH); + /* You must not free palette here, because png_set_PLTE only makes a link to + * the palette that you malloced. Wait until you are about to destroy + * the png structure. + */ + + /* Optional significant bit (sBIT) chunk */ + png_color_8 sig_bit; + + /* If we are dealing with a grayscale image then */ + sig_bit.gray = true_bit_depth; + + /* Otherwise, if we are dealing with a color image then */ + sig_bit.red = true_red_bit_depth; + sig_bit.green = true_green_bit_depth; + sig_bit.blue = true_blue_bit_depth; + + /* If the image has an alpha channel then */ + sig_bit.alpha = true_alpha_bit_depth; + + png_set_sBIT(png_ptr, info_ptr, &sig_bit); + + + /* Optional gamma chunk is strongly suggested if you have any guess + * as to the correct gamma of the image. + */ + png_set_gAMA(png_ptr, info_ptr, gamma); + + /* Optionally write comments into the image */ + { + png_text text_ptr[3]; + + char key0[]="Title"; + char text0[]="Mona Lisa"; + text_ptr[0].key = key0; + text_ptr[0].text = text0; + text_ptr[0].compression = PNG_TEXT_COMPRESSION_NONE; + text_ptr[0].itxt_length = 0; + text_ptr[0].lang = NULL; + text_ptr[0].lang_key = NULL; + + char key1[]="Author"; + char text1[]="Leonardo DaVinci"; + text_ptr[1].key = key1; + text_ptr[1].text = text1; + text_ptr[1].compression = PNG_TEXT_COMPRESSION_NONE; + text_ptr[1].itxt_length = 0; + text_ptr[1].lang = NULL; + text_ptr[1].lang_key = NULL; + + char key2[]="Description"; + char text2[]=""; + text_ptr[2].key = key2; + text_ptr[2].text = text2; + text_ptr[2].compression = PNG_TEXT_COMPRESSION_zTXt; + text_ptr[2].itxt_length = 0; + text_ptr[2].lang = NULL; + text_ptr[2].lang_key = NULL; + + png_set_text(write_ptr, write_info_ptr, text_ptr, 3); + } + + /* Other optional chunks like cHRM, bKGD, tRNS, tIME, oFFs, pHYs */ + + /* Note that if sRGB is present the gAMA and cHRM chunks must be ignored + * on read and, if your application chooses to write them, they must + * be written in accordance with the sRGB profile + */ + + /* Write the file header information. REQUIRED */ + png_write_info(png_ptr, info_ptr); + + /* If you want, you can write the info in two steps, in case you need to + * write your private chunk ahead of PLTE: + * + * png_write_info_before_PLTE(write_ptr, write_info_ptr); + * write_my_chunk(); + * png_write_info(png_ptr, info_ptr); + * + * However, given the level of known- and unknown-chunk support in 1.2.0 + * and up, this should no longer be necessary. + */ + + /* Once we write out the header, the compression type on the text + * chunks gets changed to PNG_TEXT_COMPRESSION_NONE_WR or + * PNG_TEXT_COMPRESSION_zTXt_WR, so it doesn't get written out again + * at the end. + */ + + /* Set up the transformations you want. Note that these are + * all optional. Only call them if you want them. + */ + + /* Invert monochrome pixels */ + png_set_invert_mono(png_ptr); + + /* Shift the pixels up to a legal bit depth and fill in + * as appropriate to correctly scale the image. + */ + png_set_shift(png_ptr, &sig_bit); + + /* Pack pixels into bytes */ + png_set_packing(png_ptr); + + /* Swap location of alpha bytes from ARGB to RGBA */ + png_set_swap_alpha(png_ptr); + + /* Get rid of filler (OR ALPHA) bytes, pack XRGB/RGBX/ARGB/RGBA into + * RGB (4 channels -> 3 channels). The second parameter is not used. + */ + png_set_filler(png_ptr, 0, PNG_FILLER_BEFORE); + + /* Flip BGR pixels to RGB */ + png_set_bgr(png_ptr); + + /* Swap bytes of 16-bit files to most significant byte first */ + png_set_swap(png_ptr); + + /* Swap bits of 1, 2, 4 bit packed pixel formats */ + png_set_packswap(png_ptr); + + /* Turn on interlace handling if you are not using png_write_image() */ + if (interlacing != 0) + number_passes = png_set_interlace_handling(png_ptr); + + else + number_passes = 1; + + /* The easiest way to write the image (you may have a different memory + * layout, however, so choose what fits your needs best). You need to + * use the first method if you aren't handling interlacing yourself. + */ + png_uint_32 k, height, width; + + /* In this example, "image" is a one-dimensional array of bytes */ + png_byte image[height*width*bytes_per_pixel]; + + png_bytep row_pointers[height]; + + if (height > PNG_UINT_32_MAX/(sizeof (png_bytep))) + png_error (png_ptr, "Image is too tall to process in memory"); + + /* Set up pointers into your "image" byte array */ + for (k = 0; k < height; k++) + row_pointers[k] = image + k*width*bytes_per_pixel; + + /* One of the following output methods is REQUIRED */ + +#ifdef entire /* Write out the entire image data in one call */ + png_write_image(png_ptr, row_pointers); + + /* The other way to write the image - deal with interlacing */ + +#else no_entire /* Write out the image data by one or more scanlines */ + + /* The number of passes is either 1 for non-interlaced images, + * or 7 for interlaced images. + */ + for (pass = 0; pass < number_passes; pass++) + { + /* Write a few rows at a time. */ + png_write_rows(png_ptr, &row_pointers[first_row], number_of_rows); + + /* If you are only writing one row at a time, this works */ + for (y = 0; y < height; y++) + png_write_rows(png_ptr, &row_pointers[y], 1); + } +#endif no_entire /* Use only one output method */ + + /* You can write optional chunks like tEXt, zTXt, and tIME at the end + * as well. Shouldn't be necessary in 1.2.0 and up as all the public + * chunks are supported and you can use png_set_unknown_chunks() to + * register unknown chunks into the info structure to be written out. + */ + + /* It is REQUIRED to call this to finish writing the rest of the file */ + png_write_end(png_ptr, info_ptr); +#endif hilevel + + /* If you png_malloced a palette, free it here (don't free info_ptr->palette, + * as recommended in versions 1.0.5m and earlier of this example; if + * libpng mallocs info_ptr->palette, libpng will free it). If you + * allocated it with malloc() instead of png_malloc(), use free() instead + * of png_free(). + */ + png_free(png_ptr, palette); + palette = NULL; + + /* Similarly, if you png_malloced any data that you passed in with + * png_set_something(), such as a hist or trans array, free it here, + * when you can be sure that libpng is through with it. + */ + png_free(png_ptr, trans); + trans = NULL; + /* Whenever you use png_free() it is a good idea to set the pointer to + * NULL in case your application inadvertently tries to png_free() it + * again. When png_free() sees a NULL it returns without action, thus + * avoiding the double-free security problem. + */ + + /* Clean up after the write, and free any memory allocated */ + png_destroy_write_struct(&png_ptr, &info_ptr); + + /* Close the file */ + fclose(fp); + + /* That's it */ + return (OK); +} + +#endif /* if 0 */ diff --git a/png/libpng-config.in b/png/libpng-config.in new file mode 100644 index 0000000..69bf8e3 --- /dev/null +++ b/png/libpng-config.in @@ -0,0 +1,127 @@ +#! /bin/sh + +# libpng-config +# provides configuration info for libpng. + +# Copyright (C) 2002, 2004, 2006, 2007 Glenn Randers-Pehrson + +# This code is released under the libpng license. +# For conditions of distribution and use, see the disclaimer +# and license in png.h + +# Modeled after libxml-config. + +version="@PNGLIB_VERSION@" +prefix="@prefix@" +exec_prefix="@exec_prefix@" +libdir="@libdir@" +includedir="@includedir@/libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@" +libs="-lpng@PNGLIB_MAJOR@@PNGLIB_MINOR@" +all_libs="-lpng@PNGLIB_MAJOR@@PNGLIB_MINOR@ @LIBS@" +I_opts="-I${includedir}" +L_opts="-L${libdir}" +R_opts="" +cppflags="" +ccopts="" +ldopts="" + +usage() +{ + cat < + Copyright (c) 1998-2014 Glenn Randers-Pehrson + + This document is released under the libpng license. + For conditions of distribution and use, see the disclaimer + and license in png.h + + Based on: + + libpng versions 0.97, January 1998, through 1.6.12 - June 12, 2014 + Updated and distributed by Glenn Randers-Pehrson + Copyright (c) 1998-2014 Glenn Randers-Pehrson + + libpng 1.0 beta 6 - version 0.96 - May 28, 1997 + Updated and distributed by Andreas Dilger + Copyright (c) 1996, 1997 Andreas Dilger + + libpng 1.0 beta 2 - version 0.88 - January 26, 1996 + For conditions of distribution and use, see copyright + notice in png.h. Copyright (c) 1995, 1996 Guy Eric + Schalnat, Group 42, Inc. + + Updated/rewritten per request in the libpng FAQ + Copyright (c) 1995, 1996 Frank J. T. Wojcik + December 18, 1995 & January 20, 1996 + + TABLE OF CONTENTS + + I. Introduction + II. Structures + III. Reading + IV. Writing + V. Simplified API + VI. Modifying/Customizing libpng + VII. MNG support + VIII. Changes to Libpng from version 0.88 + IX. Changes to Libpng from version 1.0.x to 1.2.x + X. Changes to Libpng from version 1.0.x/1.2.x to 1.4.x + XI. Changes to Libpng from version 1.4.x to 1.5.x + XII. Changes to Libpng from version 1.5.x to 1.6.x + XIII. Detecting libpng + XIV. Source code repository + XV. Coding style + XVI. Y2K Compliance in libpng + +I. Introduction + +This file describes how to use and modify the PNG reference library +(known as libpng) for your own use. In addition to this +file, example.c is a good starting point for using the library, as +it is heavily commented and should include everything most people +will need. We assume that libpng is already installed; see the +INSTALL file for instructions on how to configure and install libpng. + +For examples of libpng usage, see the files "example.c", "pngtest.c", +and the files in the "contrib" directory, all of which are included in +the libpng distribution. + +Libpng was written as a companion to the PNG specification, as a way +of reducing the amount of time and effort it takes to support the PNG +file format in application programs. + +The PNG specification (second edition), November 2003, is available as +a W3C Recommendation and as an ISO Standard (ISO/IEC 15948:2004 (E)) at +. It is technically equivalent +to the PNG specification (second edition) but has some additional material. + +The PNG-1.0 specification is available +as RFC 2083 and as a +W3C Recommendation . + +Some additional chunks are described in the special-purpose public chunks +documents at . + +Other information +about PNG, and the latest version of libpng, can be found at the PNG home +page, . + +Most users will not have to modify the library significantly; advanced +users may want to modify it more. All attempts were made to make it as +complete as possible, while keeping the code easy to understand. +Currently, this library only supports C. Support for other languages +is being considered. + +Libpng has been designed to handle multiple sessions at one time, +to be easily modifiable, to be portable to the vast majority of +machines (ANSI, K&R, 16-, 32-, and 64-bit) available, and to be easy +to use. The ultimate goal of libpng is to promote the acceptance of +the PNG file format in whatever way possible. While there is still +work to be done (see the TODO file), libpng should cover the +majority of the needs of its users. + +Libpng uses zlib for its compression and decompression of PNG files. +Further information about zlib, and the latest version of zlib, can +be found at the zlib home page, . +The zlib compression utility is a general purpose utility that is +useful for more than PNG files, and can be used without libpng. +See the documentation delivered with zlib for more details. +You can usually find the source files for the zlib utility wherever you +find the libpng source files. + +Libpng is thread safe, provided the threads are using different +instances of the structures. Each thread should have its own +png_struct and png_info instances, and thus its own image. +Libpng does not protect itself against two threads using the +same instance of a structure. + +II. Structures + +There are two main structures that are important to libpng, png_struct +and png_info. Both are internal structures that are no longer exposed +in the libpng interface (as of libpng 1.5.0). + +The png_info structure is designed to provide information about the +PNG file. At one time, the fields of png_info were intended to be +directly accessible to the user. However, this tended to cause problems +with applications using dynamically loaded libraries, and as a result +a set of interface functions for png_info (the png_get_*() and png_set_*() +functions) was developed, and direct access to the png_info fields was +deprecated.. + +The png_struct structure is the object used by the library to decode a +single image. As of 1.5.0 this structure is also not exposed. + +Almost all libpng APIs require a pointer to a png_struct as the first argument. +Many (in particular the png_set and png_get APIs) also require a pointer +to png_info as the second argument. Some application visible macros +defined in png.h designed for basic data access (reading and writing +integers in the PNG format) don't take a png_info pointer, but it's almost +always safe to assume that a (png_struct*) has to be passed to call an API +function. + +You can have more than one png_info structure associated with an image, +as illustrated in pngtest.c, one for information valid prior to the +IDAT chunks and another (called "end_info" below) for things after them. + +The png.h header file is an invaluable reference for programming with libpng. +And while I'm on the topic, make sure you include the libpng header file: + +#include + +and also (as of libpng-1.5.0) the zlib header file, if you need it: + +#include + +Types + +The png.h header file defines a number of integral types used by the +APIs. Most of these are fairly obvious; for example types corresponding +to integers of particular sizes and types for passing color values. + +One exception is how non-integral numbers are handled. For application +convenience most APIs that take such numbers have C (double) arguments; +however, internally PNG, and libpng, use 32 bit signed integers and encode +the value by multiplying by 100,000. As of libpng 1.5.0 a convenience +macro PNG_FP_1 is defined in png.h along with a type (png_fixed_point) +which is simply (png_int_32). + +All APIs that take (double) arguments also have a matching API that +takes the corresponding fixed point integer arguments. The fixed point +API has the same name as the floating point one with "_fixed" appended. +The actual range of values permitted in the APIs is frequently less than +the full range of (png_fixed_point) (-21474 to +21474). When APIs require +a non-negative argument the type is recorded as png_uint_32 above. Consult +the header file and the text below for more information. + +Special care must be take with sCAL chunk handling because the chunk itself +uses non-integral values encoded as strings containing decimal floating point +numbers. See the comments in the header file. + +Configuration + +The main header file function declarations are frequently protected by C +preprocessing directives of the form: + + #ifdef PNG_feature_SUPPORTED + declare-function + #endif + ... + #ifdef PNG_feature_SUPPORTED + use-function + #endif + +The library can be built without support for these APIs, although a +standard build will have all implemented APIs. Application programs +should check the feature macros before using an API for maximum +portability. From libpng 1.5.0 the feature macros set during the build +of libpng are recorded in the header file "pnglibconf.h" and this file +is always included by png.h. + +If you don't need to change the library configuration from the default, skip to +the next section ("Reading"). + +Notice that some of the makefiles in the 'scripts' directory and (in 1.5.0) all +of the build project files in the 'projects' directory simply copy +scripts/pnglibconf.h.prebuilt to pnglibconf.h. This means that these build +systems do not permit easy auto-configuration of the library - they only +support the default configuration. + +The easiest way to make minor changes to the libpng configuration when +auto-configuration is supported is to add definitions to the command line +using (typically) CPPFLAGS. For example: + +CPPFLAGS=-DPNG_NO_FLOATING_ARITHMETIC + +will change the internal libpng math implementation for gamma correction and +other arithmetic calculations to fixed point, avoiding the need for fast +floating point support. The result can be seen in the generated pnglibconf.h - +make sure it contains the changed feature macro setting. + +If you need to make more extensive configuration changes - more than one or two +feature macro settings - you can either add -DPNG_USER_CONFIG to the build +command line and put a list of feature macro settings in pngusr.h or you can set +DFA_XTRA (a makefile variable) to a file containing the same information in the +form of 'option' settings. + +A. Changing pnglibconf.h + +A variety of methods exist to build libpng. Not all of these support +reconfiguration of pnglibconf.h. To reconfigure pnglibconf.h it must either be +rebuilt from scripts/pnglibconf.dfa using awk or it must be edited by hand. + +Hand editing is achieved by copying scripts/pnglibconf.h.prebuilt to +pnglibconf.h and changing the lines defining the supported features, paying +very close attention to the 'option' information in scripts/pnglibconf.dfa +that describes those features and their requirements. This is easy to get +wrong. + +B. Configuration using DFA_XTRA + +Rebuilding from pnglibconf.dfa is easy if a functioning 'awk', or a later +variant such as 'nawk' or 'gawk', is available. The configure build will +automatically find an appropriate awk and build pnglibconf.h. +The scripts/pnglibconf.mak file contains a set of make rules for doing the +same thing if configure is not used, and many of the makefiles in the scripts +directory use this approach. + +When rebuilding simply write a new file containing changed options and set +DFA_XTRA to the name of this file. This causes the build to append the new file +to the end of scripts/pnglibconf.dfa. The pngusr.dfa file should contain lines +of the following forms: + +everything = off + +This turns all optional features off. Include it at the start of pngusr.dfa to +make it easier to build a minimal configuration. You will need to turn at least +some features on afterward to enable either reading or writing code, or both. + +option feature on +option feature off + +Enable or disable a single feature. This will automatically enable other +features required by a feature that is turned on or disable other features that +require a feature which is turned off. Conflicting settings will cause an error +message to be emitted by awk. + +setting feature default value + +Changes the default value of setting 'feature' to 'value'. There are a small +number of settings listed at the top of pnglibconf.h, they are documented in the +source code. Most of these values have performance implications for the library +but most of them have no visible effect on the API. Some can also be overridden +from the API. + +This method of building a customized pnglibconf.h is illustrated in +contrib/pngminim/*. See the "$(PNGCONF):" target in the makefile and +pngusr.dfa in these directories. + +C. Configuration using PNG_USER_CONFIG + +If -DPNG_USER_CONFIG is added to the CPPFLAGS when pnglibconf.h is built, +the file pngusr.h will automatically be included before the options in +scripts/pnglibconf.dfa are processed. Your pngusr.h file should contain only +macro definitions turning features on or off or setting settings. + +Apart from the global setting "everything = off" all the options listed above +can be set using macros in pngusr.h: + +#define PNG_feature_SUPPORTED + +is equivalent to: + +option feature on + +#define PNG_NO_feature + +is equivalent to: + +option feature off + +#define PNG_feature value + +is equivalent to: + +setting feature default value + +Notice that in both cases, pngusr.dfa and pngusr.h, the contents of the +pngusr file you supply override the contents of scripts/pnglibconf.dfa + +If confusing or incomprehensible behavior results it is possible to +examine the intermediate file pnglibconf.dfn to find the full set of +dependency information for each setting and option. Simply locate the +feature in the file and read the C comments that precede it. + +This method is also illustrated in the contrib/pngminim/* makefiles and +pngusr.h. + +III. Reading + +We'll now walk you through the possible functions to call when reading +in a PNG file sequentially, briefly explaining the syntax and purpose +of each one. See example.c and png.h for more detail. While +progressive reading is covered in the next section, you will still +need some of the functions discussed in this section to read a PNG +file. + +Setup + +You will want to do the I/O initialization(*) before you get into libpng, +so if it doesn't work, you don't have much to undo. Of course, you +will also want to insure that you are, in fact, dealing with a PNG +file. Libpng provides a simple check to see if a file is a PNG file. +To use it, pass in the first 1 to 8 bytes of the file to the function +png_sig_cmp(), and it will return 0 (false) if the bytes match the +corresponding bytes of the PNG signature, or nonzero (true) otherwise. +Of course, the more bytes you pass in, the greater the accuracy of the +prediction. + +If you are intending to keep the file pointer open for use in libpng, +you must ensure you don't read more than 8 bytes from the beginning +of the file, and you also have to make a call to png_set_sig_bytes_read() +with the number of bytes you read from the beginning. Libpng will +then only check the bytes (if any) that your program didn't read. + +(*): If you are not using the standard I/O functions, you will need +to replace them with custom functions. See the discussion under +Customizing libpng. + + + FILE *fp = fopen(file_name, "rb"); + if (!fp) + { + return (ERROR); + } + + fread(header, 1, number, fp); + is_png = !png_sig_cmp(header, 0, number); + + if (!is_png) + { + return (NOT_PNG); + } + + +Next, png_struct and png_info need to be allocated and initialized. In +order to ensure that the size of these structures is correct even with a +dynamically linked libpng, there are functions to initialize and +allocate the structures. We also pass the library version, optional +pointers to error handling functions, and a pointer to a data struct for +use by the error functions, if necessary (the pointer and functions can +be NULL if the default error handlers are to be used). See the section +on Changes to Libpng below regarding the old initialization functions. +The structure allocation functions quietly return NULL if they fail to +create the structure, so your application should check for that. + + png_structp png_ptr = png_create_read_struct + (PNG_LIBPNG_VER_STRING, (png_voidp)user_error_ptr, + user_error_fn, user_warning_fn); + + if (!png_ptr) + return (ERROR); + + png_infop info_ptr = png_create_info_struct(png_ptr); + + if (!info_ptr) + { + png_destroy_read_struct(&png_ptr, + (png_infopp)NULL, (png_infopp)NULL); + return (ERROR); + } + +If you want to use your own memory allocation routines, +use a libpng that was built with PNG_USER_MEM_SUPPORTED defined, and use +png_create_read_struct_2() instead of png_create_read_struct(): + + png_structp png_ptr = png_create_read_struct_2 + (PNG_LIBPNG_VER_STRING, (png_voidp)user_error_ptr, + user_error_fn, user_warning_fn, (png_voidp) + user_mem_ptr, user_malloc_fn, user_free_fn); + +The error handling routines passed to png_create_read_struct() +and the memory alloc/free routines passed to png_create_struct_2() +are only necessary if you are not using the libpng supplied error +handling and memory alloc/free functions. + +When libpng encounters an error, it expects to longjmp back +to your routine. Therefore, you will need to call setjmp and pass +your png_jmpbuf(png_ptr). If you read the file from different +routines, you will need to update the longjmp buffer every time you enter +a new routine that will call a png_*() function. + +See your documentation of setjmp/longjmp for your compiler for more +information on setjmp/longjmp. See the discussion on libpng error +handling in the Customizing Libpng section below for more information +on the libpng error handling. If an error occurs, and libpng longjmp's +back to your setjmp, you will want to call png_destroy_read_struct() to +free any memory. + + if (setjmp(png_jmpbuf(png_ptr))) + { + png_destroy_read_struct(&png_ptr, &info_ptr, + &end_info); + fclose(fp); + return (ERROR); + } + +Pass (png_infopp)NULL instead of &end_info if you didn't create +an end_info structure. + +If you would rather avoid the complexity of setjmp/longjmp issues, +you can compile libpng with PNG_NO_SETJMP, in which case +errors will result in a call to PNG_ABORT() which defaults to abort(). + +You can #define PNG_ABORT() to a function that does something +more useful than abort(), as long as your function does not +return. + +Now you need to set up the input code. The default for libpng is to +use the C function fread(). If you use this, you will need to pass a +valid FILE * in the function png_init_io(). Be sure that the file is +opened in binary mode. If you wish to handle reading data in another +way, you need not call the png_init_io() function, but you must then +implement the libpng I/O methods discussed in the Customizing Libpng +section below. + + png_init_io(png_ptr, fp); + +If you had previously opened the file and read any of the signature from +the beginning in order to see if this was a PNG file, you need to let +libpng know that there are some bytes missing from the start of the file. + + png_set_sig_bytes(png_ptr, number); + +You can change the zlib compression buffer size to be used while +reading compressed data with + + png_set_compression_buffer_size(png_ptr, buffer_size); + +where the default size is 8192 bytes. Note that the buffer size +is changed immediately and the buffer is reallocated immediately, +instead of setting a flag to be acted upon later. + +If you want CRC errors to be handled in a different manner than +the default, use + + png_set_crc_action(png_ptr, crit_action, ancil_action); + +The values for png_set_crc_action() say how libpng is to handle CRC errors in +ancillary and critical chunks, and whether to use the data contained +therein. Note that it is impossible to "discard" data in a critical +chunk. + +Choices for (int) crit_action are + PNG_CRC_DEFAULT 0 error/quit + PNG_CRC_ERROR_QUIT 1 error/quit + PNG_CRC_WARN_USE 3 warn/use data + PNG_CRC_QUIET_USE 4 quiet/use data + PNG_CRC_NO_CHANGE 5 use the current value + +Choices for (int) ancil_action are + PNG_CRC_DEFAULT 0 error/quit + PNG_CRC_ERROR_QUIT 1 error/quit + PNG_CRC_WARN_DISCARD 2 warn/discard data + PNG_CRC_WARN_USE 3 warn/use data + PNG_CRC_QUIET_USE 4 quiet/use data + PNG_CRC_NO_CHANGE 5 use the current value + +Setting up callback code + +You can set up a callback function to handle any unknown chunks in the +input stream. You must supply the function + + read_chunk_callback(png_structp png_ptr, + png_unknown_chunkp chunk); + { + /* The unknown chunk structure contains your + chunk data, along with similar data for any other + unknown chunks: */ + + png_byte name[5]; + png_byte *data; + png_size_t size; + + /* Note that libpng has already taken care of + the CRC handling */ + + /* put your code here. Search for your chunk in the + unknown chunk structure, process it, and return one + of the following: */ + + return (-n); /* chunk had an error */ + return (0); /* did not recognize */ + return (n); /* success */ + } + +(You can give your function another name that you like instead of +"read_chunk_callback") + +To inform libpng about your function, use + + png_set_read_user_chunk_fn(png_ptr, user_chunk_ptr, + read_chunk_callback); + +This names not only the callback function, but also a user pointer that +you can retrieve with + + png_get_user_chunk_ptr(png_ptr); + +If you call the png_set_read_user_chunk_fn() function, then all unknown +chunks which the callback does not handle will be saved when read. You can +cause them to be discarded by returning '1' ("handled") instead of '0'. This +behavior will change in libpng 1.7 and the default handling set by the +png_set_keep_unknown_chunks() function, described below, will be used when the +callback returns 0. If you want the existing behavior you should set the global +default to PNG_HANDLE_CHUNK_IF_SAFE now; this is compatible with all current +versions of libpng and with 1.7. Libpng 1.6 issues a warning if you keep the +default, or PNG_HANDLE_CHUNK_NEVER, and the callback returns 0. + +At this point, you can set up a callback function that will be +called after each row has been read, which you can use to control +a progress meter or the like. It's demonstrated in pngtest.c. +You must supply a function + + void read_row_callback(png_structp png_ptr, + png_uint_32 row, int pass); + { + /* put your code here */ + } + +(You can give it another name that you like instead of "read_row_callback") + +To inform libpng about your function, use + + png_set_read_status_fn(png_ptr, read_row_callback); + +When this function is called the row has already been completely processed and +the 'row' and 'pass' refer to the next row to be handled. For the +non-interlaced case the row that was just handled is simply one less than the +passed in row number, and pass will always be 0. For the interlaced case the +same applies unless the row value is 0, in which case the row just handled was +the last one from one of the preceding passes. Because interlacing may skip a +pass you cannot be sure that the preceding pass is just 'pass-1', if you really +need to know what the last pass is record (row,pass) from the callback and use +the last recorded value each time. + +As with the user transform you can find the output row using the +PNG_ROW_FROM_PASS_ROW macro. + +Unknown-chunk handling + +Now you get to set the way the library processes unknown chunks in the +input PNG stream. Both known and unknown chunks will be read. Normal +behavior is that known chunks will be parsed into information in +various info_ptr members while unknown chunks will be discarded. This +behavior can be wasteful if your application will never use some known +chunk types. To change this, you can call: + + png_set_keep_unknown_chunks(png_ptr, keep, + chunk_list, num_chunks); + + keep - 0: default unknown chunk handling + 1: ignore; do not keep + 2: keep only if safe-to-copy + 3: keep even if unsafe-to-copy + + You can use these definitions: + PNG_HANDLE_CHUNK_AS_DEFAULT 0 + PNG_HANDLE_CHUNK_NEVER 1 + PNG_HANDLE_CHUNK_IF_SAFE 2 + PNG_HANDLE_CHUNK_ALWAYS 3 + + chunk_list - list of chunks affected (a byte string, + five bytes per chunk, NULL or '\0' if + num_chunks is positive; ignored if + numchunks <= 0). + + num_chunks - number of chunks affected; if 0, all + unknown chunks are affected. If positive, + only the chunks in the list are affected, + and if negative all unknown chunks and + all known chunks except for the IHDR, + PLTE, tRNS, IDAT, and IEND chunks are + affected. + +Unknown chunks declared in this way will be saved as raw data onto a +list of png_unknown_chunk structures. If a chunk that is normally +known to libpng is named in the list, it will be handled as unknown, +according to the "keep" directive. If a chunk is named in successive +instances of png_set_keep_unknown_chunks(), the final instance will +take precedence. The IHDR and IEND chunks should not be named in +chunk_list; if they are, libpng will process them normally anyway. +If you know that your application will never make use of some particular +chunks, use PNG_HANDLE_CHUNK_NEVER (or 1) as demonstrated below. + +Here is an example of the usage of png_set_keep_unknown_chunks(), +where the private "vpAg" chunk will later be processed by a user chunk +callback function: + + png_byte vpAg[5]={118, 112, 65, 103, (png_byte) '\0'}; + + #if defined(PNG_UNKNOWN_CHUNKS_SUPPORTED) + png_byte unused_chunks[]= + { + 104, 73, 83, 84, (png_byte) '\0', /* hIST */ + 105, 84, 88, 116, (png_byte) '\0', /* iTXt */ + 112, 67, 65, 76, (png_byte) '\0', /* pCAL */ + 115, 67, 65, 76, (png_byte) '\0', /* sCAL */ + 115, 80, 76, 84, (png_byte) '\0', /* sPLT */ + 116, 73, 77, 69, (png_byte) '\0', /* tIME */ + }; + #endif + + ... + + #if defined(PNG_UNKNOWN_CHUNKS_SUPPORTED) + /* ignore all unknown chunks + * (use global setting "2" for libpng16 and earlier): + */ + png_set_keep_unknown_chunks(read_ptr, 2, NULL, 0); + + /* except for vpAg: */ + png_set_keep_unknown_chunks(read_ptr, 2, vpAg, 1); + + /* also ignore unused known chunks: */ + png_set_keep_unknown_chunks(read_ptr, 1, unused_chunks, + (int)(sizeof unused_chunks)/5); + #endif + +User limits + +The PNG specification allows the width and height of an image to be as +large as 2^31-1 (0x7fffffff), or about 2.147 billion rows and columns. +Since very few applications really need to process such large images, +we have imposed an arbitrary 1-million limit on rows and columns. +Larger images will be rejected immediately with a png_error() call. If +you wish to change this limit, you can use + + png_set_user_limits(png_ptr, width_max, height_max); + +to set your own limits, or use width_max = height_max = 0x7fffffffL +to allow all valid dimensions (libpng may reject some very large images +anyway because of potential buffer overflow conditions). + +You should put this statement after you create the PNG structure and +before calling png_read_info(), png_read_png(), or png_process_data(). + +When writing a PNG datastream, put this statement before calling +png_write_info() or png_write_png(). + +If you need to retrieve the limits that are being applied, use + + width_max = png_get_user_width_max(png_ptr); + height_max = png_get_user_height_max(png_ptr); + +The PNG specification sets no limit on the number of ancillary chunks +allowed in a PNG datastream. You can impose a limit on the total number +of sPLT, tEXt, iTXt, zTXt, and unknown chunks that will be stored, with + + png_set_chunk_cache_max(png_ptr, user_chunk_cache_max); + +where 0x7fffffffL means unlimited. You can retrieve this limit with + + chunk_cache_max = png_get_chunk_cache_max(png_ptr); + +You can also set a limit on the amount of memory that a compressed chunk +other than IDAT can occupy, with + + png_set_chunk_malloc_max(png_ptr, user_chunk_malloc_max); + +and you can retrieve the limit with + + chunk_malloc_max = png_get_chunk_malloc_max(png_ptr); + +Any chunks that would cause either of these limits to be exceeded will +be ignored. + +Information about your system + +If you intend to display the PNG or to incorporate it in other image data you +need to tell libpng information about your display or drawing surface so that +libpng can convert the values in the image to match the display. + +From libpng-1.5.4 this information can be set before reading the PNG file +header. In earlier versions png_set_gamma() existed but behaved incorrectly if +called before the PNG file header had been read and png_set_alpha_mode() did not +exist. + +If you need to support versions prior to libpng-1.5.4 test the version number +as illustrated below using "PNG_LIBPNG_VER >= 10504" and follow the procedures +described in the appropriate manual page. + +You give libpng the encoding expected by your system expressed as a 'gamma' +value. You can also specify a default encoding for the PNG file in +case the required information is missing from the file. By default libpng +assumes that the PNG data matches your system, to keep this default call: + + png_set_gamma(png_ptr, screen_gamma, output_gamma); + +or you can use the fixed point equivalent: + + png_set_gamma_fixed(png_ptr, PNG_FP_1*screen_gamma, + PNG_FP_1*output_gamma); + +If you don't know the gamma for your system it is probably 2.2 - a good +approximation to the IEC standard for display systems (sRGB). If images are +too contrasty or washed out you got the value wrong - check your system +documentation! + +Many systems permit the system gamma to be changed via a lookup table in the +display driver, a few systems, including older Macs, change the response by +default. As of 1.5.4 three special values are available to handle common +situations: + + PNG_DEFAULT_sRGB: Indicates that the system conforms to the + IEC 61966-2-1 standard. This matches almost + all systems. + PNG_GAMMA_MAC_18: Indicates that the system is an older + (pre Mac OS 10.6) Apple Macintosh system with + the default settings. + PNG_GAMMA_LINEAR: Just the fixed point value for 1.0 - indicates + that the system expects data with no gamma + encoding. + +You would use the linear (unencoded) value if you need to process the pixel +values further because this avoids the need to decode and re-encode each +component value whenever arithmetic is performed. A lot of graphics software +uses linear values for this reason, often with higher precision component values +to preserve overall accuracy. + + +The output_gamma value expresses how to decode the output values, not how +they are encoded. The values used correspond to the normal numbers used to +describe the overall gamma of a computer display system; for example 2.2 for +an sRGB conformant system. The values are scaled by 100000 in the _fixed +version of the API (so 220000 for sRGB.) + +The inverse of the value is always used to provide a default for the PNG file +encoding if it has no gAMA chunk and if png_set_gamma() has not been called +to override the PNG gamma information. + +When the ALPHA_OPTIMIZED mode is selected the output gamma is used to encode +opaque pixels however pixels with lower alpha values are not encoded, +regardless of the output gamma setting. + +When the standard Porter Duff handling is requested with mode 1 the output +encoding is set to be linear and the output_gamma value is only relevant +as a default for input data that has no gamma information. The linear output +encoding will be overridden if png_set_gamma() is called - the results may be +highly unexpected! + +The following numbers are derived from the sRGB standard and the research +behind it. sRGB is defined to be approximated by a PNG gAMA chunk value of +0.45455 (1/2.2) for PNG. The value implicitly includes any viewing +correction required to take account of any differences in the color +environment of the original scene and the intended display environment; the +value expresses how to *decode* the image for display, not how the original +data was *encoded*. + +sRGB provides a peg for the PNG standard by defining a viewing environment. +sRGB itself, and earlier TV standards, actually use a more complex transform +(a linear portion then a gamma 2.4 power law) than PNG can express. (PNG is +limited to simple power laws.) By saying that an image for direct display on +an sRGB conformant system should be stored with a gAMA chunk value of 45455 +(11.3.3.2 and 11.3.3.5 of the ISO PNG specification) the PNG specification +makes it possible to derive values for other display systems and +environments. + +The Mac value is deduced from the sRGB based on an assumption that the actual +extra viewing correction used in early Mac display systems was implemented as +a power 1.45 lookup table. + +Any system where a programmable lookup table is used or where the behavior of +the final display device characteristics can be changed requires system +specific code to obtain the current characteristic. However this can be +difficult and most PNG gamma correction only requires an approximate value. + +By default, if png_set_alpha_mode() is not called, libpng assumes that all +values are unencoded, linear, values and that the output device also has a +linear characteristic. This is only very rarely correct - it is invariably +better to call png_set_alpha_mode() with PNG_DEFAULT_sRGB than rely on the +default if you don't know what the right answer is! + +The special value PNG_GAMMA_MAC_18 indicates an older Mac system (pre Mac OS +10.6) which used a correction table to implement a somewhat lower gamma on an +otherwise sRGB system. + +Both these values are reserved (not simple gamma values) in order to allow +more precise correction internally in the future. + +NOTE: the values can be passed to either the fixed or floating +point APIs, but the floating point API will also accept floating point +values. + +The second thing you may need to tell libpng about is how your system handles +alpha channel information. Some, but not all, PNG files contain an alpha +channel. To display these files correctly you need to compose the data onto a +suitable background, as described in the PNG specification. + +Libpng only supports composing onto a single color (using png_set_background; +see below). Otherwise you must do the composition yourself and, in this case, +you may need to call png_set_alpha_mode: + + #if PNG_LIBPNG_VER >= 10504 + png_set_alpha_mode(png_ptr, mode, screen_gamma); + #else + png_set_gamma(png_ptr, screen_gamma, 1.0/screen_gamma); + #endif + +The screen_gamma value is the same as the argument to png_set_gamma; however, +how it affects the output depends on the mode. png_set_alpha_mode() sets the +file gamma default to 1/screen_gamma, so normally you don't need to call +png_set_gamma. If you need different defaults call png_set_gamma() before +png_set_alpha_mode() - if you call it after it will override the settings made +by png_set_alpha_mode(). + +The mode is as follows: + + PNG_ALPHA_PNG: The data is encoded according to the PNG +specification. Red, green and blue, or gray, components are +gamma encoded color values and are not premultiplied by the +alpha value. The alpha value is a linear measure of the +contribution of the pixel to the corresponding final output pixel. + +You should normally use this format if you intend to perform +color correction on the color values; most, maybe all, color +correction software has no handling for the alpha channel and, +anyway, the math to handle pre-multiplied component values is +unnecessarily complex. + +Before you do any arithmetic on the component values you need +to remove the gamma encoding and multiply out the alpha +channel. See the PNG specification for more detail. It is +important to note that when an image with an alpha channel is +scaled, linear encoded, pre-multiplied component values must +be used! + +The remaining modes assume you don't need to do any further color correction or +that if you do, your color correction software knows all about alpha (it +probably doesn't!). They 'associate' the alpha with the color information by +storing color channel values that have been scaled by the alpha. The +advantage is that the color channels can be resampled (the image can be +scaled) in this form. The disadvantage is that normal practice is to store +linear, not (gamma) encoded, values and this requires 16-bit channels for +still images rather than the 8-bit channels that are just about sufficient if +gamma encoding is used. In addition all non-transparent pixel values, +including completely opaque ones, must be gamma encoded to produce the final +image. These are the 'STANDARD', 'ASSOCIATED' or 'PREMULTIPLIED' modes +described below (the latter being the two common names for associated alpha +color channels). Note that PNG files always contain non-associated color +channels; png_set_alpha_mode() with one of the modes causes the decoder to +convert the pixels to an associated form before returning them to your +application. + +Since it is not necessary to perform arithmetic on opaque color values so +long as they are not to be resampled and are in the final color space it is +possible to optimize the handling of alpha by storing the opaque pixels in +the PNG format (adjusted for the output color space) while storing partially +opaque pixels in the standard, linear, format. The accuracy required for +standard alpha composition is relatively low, because the pixels are +isolated, therefore typically the accuracy loss in storing 8-bit linear +values is acceptable. (This is not true if the alpha channel is used to +simulate transparency over large areas - use 16 bits or the PNG mode in +this case!) This is the 'OPTIMIZED' mode. For this mode a pixel is +treated as opaque only if the alpha value is equal to the maximum value. + + PNG_ALPHA_STANDARD: The data libpng produces is encoded in the +standard way assumed by most correctly written graphics software. +The gamma encoding will be removed by libpng and the +linear component values will be pre-multiplied by the +alpha channel. + +With this format the final image must be re-encoded to +match the display gamma before the image is displayed. +If your system doesn't do that, yet still seems to +perform arithmetic on the pixels without decoding them, +it is broken - check out the modes below. + +With PNG_ALPHA_STANDARD libpng always produces linear +component values, whatever screen_gamma you supply. The +screen_gamma value is, however, used as a default for +the file gamma if the PNG file has no gamma information. + +If you call png_set_gamma() after png_set_alpha_mode() you +will override the linear encoding. Instead the +pre-multiplied pixel values will be gamma encoded but +the alpha channel will still be linear. This may +actually match the requirements of some broken software, +but it is unlikely. + +While linear 8-bit data is often used it has +insufficient precision for any image with a reasonable +dynamic range. To avoid problems, and if your software +supports it, use png_set_expand_16() to force all +components to 16 bits. + + PNG_ALPHA_OPTIMIZED: This mode is the same as PNG_ALPHA_STANDARD +except that completely opaque pixels are gamma encoded according to +the screen_gamma value. Pixels with alpha less than 1.0 +will still have linear components. + +Use this format if you have control over your +compositing software and so don't do other arithmetic +(such as scaling) on the data you get from libpng. Your +compositing software can simply copy opaque pixels to +the output but still has linear values for the +non-opaque pixels. + +In normal compositing, where the alpha channel encodes +partial pixel coverage (as opposed to broad area +translucency), the inaccuracies of the 8-bit +representation of non-opaque pixels are irrelevant. + +You can also try this format if your software is broken; +it might look better. + + PNG_ALPHA_BROKEN: This is PNG_ALPHA_STANDARD; however, all component +values, including the alpha channel are gamma encoded. This is +broken because, in practice, no implementation that uses this choice +correctly undoes the encoding before handling alpha composition. Use this +choice only if other serious errors in the software or hardware you use +mandate it. In most cases of broken software or hardware the bug in the +final display manifests as a subtle halo around composited parts of the +image. You may not even perceive this as a halo; the composited part of +the image may simply appear separate from the background, as though it had +been cut out of paper and pasted on afterward. + +If you don't have to deal with bugs in software or hardware, or if you can fix +them, there are three recommended ways of using png_set_alpha_mode(): + + png_set_alpha_mode(png_ptr, PNG_ALPHA_PNG, + screen_gamma); + +You can do color correction on the result (libpng does not currently +support color correction internally). When you handle the alpha channel +you need to undo the gamma encoding and multiply out the alpha. + + png_set_alpha_mode(png_ptr, PNG_ALPHA_STANDARD, + screen_gamma); + png_set_expand_16(png_ptr); + +If you are using the high level interface, don't call png_set_expand_16(); +instead pass PNG_TRANSFORM_EXPAND_16 to the interface. + +With this mode you can't do color correction, but you can do arithmetic, +including composition and scaling, on the data without further processing. + + png_set_alpha_mode(png_ptr, PNG_ALPHA_OPTIMIZED, + screen_gamma); + +You can avoid the expansion to 16-bit components with this mode, but you +lose the ability to scale the image or perform other linear arithmetic. +All you can do is compose the result onto a matching output. Since this +mode is libpng-specific you also need to write your own composition +software. + +The following are examples of calls to png_set_alpha_mode to achieve the +required overall gamma correction and, where necessary, alpha +premultiplication. + + png_set_alpha_mode(pp, PNG_ALPHA_PNG, PNG_DEFAULT_sRGB); + +This is the default libpng handling of the alpha channel - it is not +pre-multiplied into the color components. In addition the call states +that the output is for a sRGB system and causes all PNG files without gAMA +chunks to be assumed to be encoded using sRGB. + + png_set_alpha_mode(pp, PNG_ALPHA_PNG, PNG_GAMMA_MAC); + +In this case the output is assumed to be something like an sRGB conformant +display preceeded by a power-law lookup table of power 1.45. This is how +early Mac systems behaved. + + png_set_alpha_mode(pp, PNG_ALPHA_STANDARD, PNG_GAMMA_LINEAR); + +This is the classic Jim Blinn approach and will work in academic +environments where everything is done by the book. It has the shortcoming +of assuming that input PNG data with no gamma information is linear - this +is unlikely to be correct unless the PNG files where generated locally. +Most of the time the output precision will be so low as to show +significant banding in dark areas of the image. + + png_set_expand_16(pp); + png_set_alpha_mode(pp, PNG_ALPHA_STANDARD, PNG_DEFAULT_sRGB); + +This is a somewhat more realistic Jim Blinn inspired approach. PNG files +are assumed to have the sRGB encoding if not marked with a gamma value and +the output is always 16 bits per component. This permits accurate scaling +and processing of the data. If you know that your input PNG files were +generated locally you might need to replace PNG_DEFAULT_sRGB with the +correct value for your system. + + png_set_alpha_mode(pp, PNG_ALPHA_OPTIMIZED, PNG_DEFAULT_sRGB); + +If you just need to composite the PNG image onto an existing background +and if you control the code that does this you can use the optimization +setting. In this case you just copy completely opaque pixels to the +output. For pixels that are not completely transparent (you just skip +those) you do the composition math using png_composite or png_composite_16 +below then encode the resultant 8-bit or 16-bit values to match the output +encoding. + + Other cases + +If neither the PNG nor the standard linear encoding work for you because +of the software or hardware you use then you have a big problem. The PNG +case will probably result in halos around the image. The linear encoding +will probably result in a washed out, too bright, image (it's actually too +contrasty.) Try the ALPHA_OPTIMIZED mode above - this will probably +substantially reduce the halos. Alternatively try: + + png_set_alpha_mode(pp, PNG_ALPHA_BROKEN, PNG_DEFAULT_sRGB); + +This option will also reduce the halos, but there will be slight dark +halos round the opaque parts of the image where the background is light. +In the OPTIMIZED mode the halos will be light halos where the background +is dark. Take your pick - the halos are unavoidable unless you can get +your hardware/software fixed! (The OPTIMIZED approach is slightly +faster.) + +When the default gamma of PNG files doesn't match the output gamma. +If you have PNG files with no gamma information png_set_alpha_mode allows +you to provide a default gamma, but it also sets the ouput gamma to the +matching value. If you know your PNG files have a gamma that doesn't +match the output you can take advantage of the fact that +png_set_alpha_mode always sets the output gamma but only sets the PNG +default if it is not already set: + + png_set_alpha_mode(pp, PNG_ALPHA_PNG, PNG_DEFAULT_sRGB); + png_set_alpha_mode(pp, PNG_ALPHA_PNG, PNG_GAMMA_MAC); + +The first call sets both the default and the output gamma values, the +second call overrides the output gamma without changing the default. This +is easier than achieving the same effect with png_set_gamma. You must use +PNG_ALPHA_PNG for the first call - internal checking in png_set_alpha will +fire if more than one call to png_set_alpha_mode and png_set_background is +made in the same read operation, however multiple calls with PNG_ALPHA_PNG +are ignored. + +If you don't need, or can't handle, the alpha channel you can call +png_set_background() to remove it by compositing against a fixed color. Don't +call png_set_strip_alpha() to do this - it will leave spurious pixel values in +transparent parts of this image. + + png_set_background(png_ptr, &background_color, + PNG_BACKGROUND_GAMMA_SCREEN, 0, 1); + +The background_color is an RGB or grayscale value according to the data format +libpng will produce for you. Because you don't yet know the format of the PNG +file, if you call png_set_background at this point you must arrange for the +format produced by libpng to always have 8-bit or 16-bit components and then +store the color as an 8-bit or 16-bit color as appropriate. The color contains +separate gray and RGB component values, so you can let libpng produce gray or +RGB output according to the input format, but low bit depth grayscale images +must always be converted to at least 8-bit format. (Even though low bit depth +grayscale images can't have an alpha channel they can have a transparent +color!) + +You set the transforms you need later, either as flags to the high level +interface or libpng API calls for the low level interface. For reference the +settings and API calls required are: + +8-bit values: + PNG_TRANSFORM_SCALE_16 | PNG_EXPAND + png_set_expand(png_ptr); png_set_scale_16(png_ptr); + + If you must get exactly the same inaccurate results + produced by default in versions prior to libpng-1.5.4, + use PNG_TRANSFORM_STRIP_16 and png_set_strip_16(png_ptr) + instead. + +16-bit values: + PNG_TRANSFORM_EXPAND_16 + png_set_expand_16(png_ptr); + +In either case palette image data will be expanded to RGB. If you just want +color data you can add PNG_TRANSFORM_GRAY_TO_RGB or png_set_gray_to_rgb(png_ptr) +to the list. + +Calling png_set_background before the PNG file header is read will not work +prior to libpng-1.5.4. Because the failure may result in unexpected warnings or +errors it is therefore much safer to call png_set_background after the head has +been read. Unfortunately this means that prior to libpng-1.5.4 it cannot be +used with the high level interface. + +The high-level read interface + +At this point there are two ways to proceed; through the high-level +read interface, or through a sequence of low-level read operations. +You can use the high-level interface if (a) you are willing to read +the entire image into memory, and (b) the input transformations +you want to do are limited to the following set: + + PNG_TRANSFORM_IDENTITY No transformation + PNG_TRANSFORM_SCALE_16 Strip 16-bit samples to + 8-bit accurately + PNG_TRANSFORM_STRIP_16 Chop 16-bit samples to + 8-bit less accurately + PNG_TRANSFORM_STRIP_ALPHA Discard the alpha channel + PNG_TRANSFORM_PACKING Expand 1, 2 and 4-bit + samples to bytes + PNG_TRANSFORM_PACKSWAP Change order of packed + pixels to LSB first + PNG_TRANSFORM_EXPAND Perform set_expand() + PNG_TRANSFORM_INVERT_MONO Invert monochrome images + PNG_TRANSFORM_SHIFT Normalize pixels to the + sBIT depth + PNG_TRANSFORM_BGR Flip RGB to BGR, RGBA + to BGRA + PNG_TRANSFORM_SWAP_ALPHA Flip RGBA to ARGB or GA + to AG + PNG_TRANSFORM_INVERT_ALPHA Change alpha from opacity + to transparency + PNG_TRANSFORM_SWAP_ENDIAN Byte-swap 16-bit samples + PNG_TRANSFORM_GRAY_TO_RGB Expand grayscale samples + to RGB (or GA to RGBA) + PNG_TRANSFORM_EXPAND_16 Expand samples to 16 bits + +(This excludes setting a background color, doing gamma transformation, +quantizing, and setting filler.) If this is the case, simply do this: + + png_read_png(png_ptr, info_ptr, png_transforms, NULL) + +where png_transforms is an integer containing the bitwise OR of some +set of transformation flags. This call is equivalent to png_read_info(), +followed the set of transformations indicated by the transform mask, +then png_read_image(), and finally png_read_end(). + +(The final parameter of this call is not yet used. Someday it might point +to transformation parameters required by some future input transform.) + +You must use png_transforms and not call any png_set_transform() functions +when you use png_read_png(). + +After you have called png_read_png(), you can retrieve the image data +with + + row_pointers = png_get_rows(png_ptr, info_ptr); + +where row_pointers is an array of pointers to the pixel data for each row: + + png_bytep row_pointers[height]; + +If you know your image size and pixel size ahead of time, you can allocate +row_pointers prior to calling png_read_png() with + + if (height > PNG_UINT_32_MAX/(sizeof (png_byte))) + png_error (png_ptr, + "Image is too tall to process in memory"); + + if (width > PNG_UINT_32_MAX/pixel_size) + png_error (png_ptr, + "Image is too wide to process in memory"); + + row_pointers = png_malloc(png_ptr, + height*(sizeof (png_bytep))); + + for (int i=0; i) and +png_get_(png_ptr, info_ptr, ...) functions return non-zero if the +data has been read, or zero if it is missing. The parameters to the +png_get_ are set directly if they are simple data types, or a +pointer into the info_ptr is returned for any complex types. + +The colorspace data from gAMA, cHRM, sRGB, iCCP, and sBIT chunks +is simply returned to give the application information about how the +image was encoded. Libpng itself only does transformations using the file +gamma when combining semitransparent pixels with the background color, and, +since libpng-1.6.0, when converting between 8-bit sRGB and 16-bit linear pixels +within the simplified API. Libpng also uses the file gamma when converting +RGB to gray, beginning with libpng-1.0.5, if the application calls +png_set_rgb_to_gray()). + + png_get_PLTE(png_ptr, info_ptr, &palette, + &num_palette); + + palette - the palette for the file + (array of png_color) + + num_palette - number of entries in the palette + + png_get_gAMA(png_ptr, info_ptr, &file_gamma); + png_get_gAMA_fixed(png_ptr, info_ptr, &int_file_gamma); + + file_gamma - the gamma at which the file is + written (PNG_INFO_gAMA) + + int_file_gamma - 100,000 times the gamma at which the + file is written + + png_get_cHRM(png_ptr, info_ptr, &white_x, &white_y, &red_x, + &red_y, &green_x, &green_y, &blue_x, &blue_y) + png_get_cHRM_XYZ(png_ptr, info_ptr, &red_X, &red_Y, &red_Z, + &green_X, &green_Y, &green_Z, &blue_X, &blue_Y, + &blue_Z) + png_get_cHRM_fixed(png_ptr, info_ptr, &int_white_x, + &int_white_y, &int_red_x, &int_red_y, + &int_green_x, &int_green_y, &int_blue_x, + &int_blue_y) + png_get_cHRM_XYZ_fixed(png_ptr, info_ptr, &int_red_X, &int_red_Y, + &int_red_Z, &int_green_X, &int_green_Y, + &int_green_Z, &int_blue_X, &int_blue_Y, + &int_blue_Z) + + {white,red,green,blue}_{x,y} + A color space encoding specified using the + chromaticities of the end points and the + white point. (PNG_INFO_cHRM) + + {red,green,blue}_{X,Y,Z} + A color space encoding specified using the + encoding end points - the CIE tristimulus + specification of the intended color of the red, + green and blue channels in the PNG RGB data. + The white point is simply the sum of the three + end points. (PNG_INFO_cHRM) + + png_get_sRGB(png_ptr, info_ptr, &srgb_intent); + + srgb_intent - the rendering intent (PNG_INFO_sRGB) + The presence of the sRGB chunk + means that the pixel data is in the + sRGB color space. This chunk also + implies specific values of gAMA and + cHRM. + + png_get_iCCP(png_ptr, info_ptr, &name, + &compression_type, &profile, &proflen); + + name - The profile name. + + compression_type - The compression type; always + PNG_COMPRESSION_TYPE_BASE for PNG 1.0. + You may give NULL to this argument to + ignore it. + + profile - International Color Consortium color + profile data. May contain NULs. + + proflen - length of profile data in bytes. + + png_get_sBIT(png_ptr, info_ptr, &sig_bit); + + sig_bit - the number of significant bits for + (PNG_INFO_sBIT) each of the gray, + red, green, and blue channels, + whichever are appropriate for the + given color type (png_color_16) + + png_get_tRNS(png_ptr, info_ptr, &trans_alpha, + &num_trans, &trans_color); + + trans_alpha - array of alpha (transparency) + entries for palette (PNG_INFO_tRNS) + + num_trans - number of transparent entries + (PNG_INFO_tRNS) + + trans_color - graylevel or color sample values of + the single transparent color for + non-paletted images (PNG_INFO_tRNS) + + png_get_hIST(png_ptr, info_ptr, &hist); + (PNG_INFO_hIST) + + hist - histogram of palette (array of + png_uint_16) + + png_get_tIME(png_ptr, info_ptr, &mod_time); + + mod_time - time image was last modified + (PNG_VALID_tIME) + + png_get_bKGD(png_ptr, info_ptr, &background); + + background - background color (of type + png_color_16p) (PNG_VALID_bKGD) + valid 16-bit red, green and blue + values, regardless of color_type + + num_comments = png_get_text(png_ptr, info_ptr, + &text_ptr, &num_text); + + num_comments - number of comments + + text_ptr - array of png_text holding image + comments + + text_ptr[i].compression - type of compression used + on "text" PNG_TEXT_COMPRESSION_NONE + PNG_TEXT_COMPRESSION_zTXt + PNG_ITXT_COMPRESSION_NONE + PNG_ITXT_COMPRESSION_zTXt + + text_ptr[i].key - keyword for comment. Must contain + 1-79 characters. + + text_ptr[i].text - text comments for current + keyword. Can be empty. + + text_ptr[i].text_length - length of text string, + after decompression, 0 for iTXt + + text_ptr[i].itxt_length - length of itxt string, + after decompression, 0 for tEXt/zTXt + + text_ptr[i].lang - language of comment (empty + string for unknown). + + text_ptr[i].lang_key - keyword in UTF-8 + (empty string for unknown). + + Note that the itxt_length, lang, and lang_key + members of the text_ptr structure only exist when the + library is built with iTXt chunk support. Prior to + libpng-1.4.0 the library was built by default without + iTXt support. Also note that when iTXt is supported, + they contain NULL pointers when the "compression" + field contains PNG_TEXT_COMPRESSION_NONE or + PNG_TEXT_COMPRESSION_zTXt. + + num_text - number of comments (same as + num_comments; you can put NULL here + to avoid the duplication) + + Note while png_set_text() will accept text, language, + and translated keywords that can be NULL pointers, the + structure returned by png_get_text will always contain + regular zero-terminated C strings. They might be + empty strings but they will never be NULL pointers. + + num_spalettes = png_get_sPLT(png_ptr, info_ptr, + &palette_ptr); + + num_spalettes - number of sPLT chunks read. + + palette_ptr - array of palette structures holding + contents of one or more sPLT chunks + read. + + png_get_oFFs(png_ptr, info_ptr, &offset_x, &offset_y, + &unit_type); + + offset_x - positive offset from the left edge + of the screen (can be negative) + + offset_y - positive offset from the top edge + of the screen (can be negative) + + unit_type - PNG_OFFSET_PIXEL, PNG_OFFSET_MICROMETER + + png_get_pHYs(png_ptr, info_ptr, &res_x, &res_y, + &unit_type); + + res_x - pixels/unit physical resolution in + x direction + + res_y - pixels/unit physical resolution in + x direction + + unit_type - PNG_RESOLUTION_UNKNOWN, + PNG_RESOLUTION_METER + + png_get_sCAL(png_ptr, info_ptr, &unit, &width, + &height) + + unit - physical scale units (an integer) + + width - width of a pixel in physical scale units + + height - height of a pixel in physical scale units + (width and height are doubles) + + png_get_sCAL_s(png_ptr, info_ptr, &unit, &width, + &height) + + unit - physical scale units (an integer) + + width - width of a pixel in physical scale units + (expressed as a string) + + height - height of a pixel in physical scale units + (width and height are strings like "2.54") + + num_unknown_chunks = png_get_unknown_chunks(png_ptr, + info_ptr, &unknowns) + + unknowns - array of png_unknown_chunk + structures holding unknown chunks + + unknowns[i].name - name of unknown chunk + + unknowns[i].data - data of unknown chunk + + unknowns[i].size - size of unknown chunk's data + + unknowns[i].location - position of chunk in file + + The value of "i" corresponds to the order in which the + chunks were read from the PNG file or inserted with the + png_set_unknown_chunks() function. + + The value of "location" is a bitwise "or" of + + PNG_HAVE_IHDR (0x01) + PNG_HAVE_PLTE (0x02) + PNG_AFTER_IDAT (0x08) + +The data from the pHYs chunk can be retrieved in several convenient +forms: + + res_x = png_get_x_pixels_per_meter(png_ptr, + info_ptr) + + res_y = png_get_y_pixels_per_meter(png_ptr, + info_ptr) + + res_x_and_y = png_get_pixels_per_meter(png_ptr, + info_ptr) + + res_x = png_get_x_pixels_per_inch(png_ptr, + info_ptr) + + res_y = png_get_y_pixels_per_inch(png_ptr, + info_ptr) + + res_x_and_y = png_get_pixels_per_inch(png_ptr, + info_ptr) + + aspect_ratio = png_get_pixel_aspect_ratio(png_ptr, + info_ptr) + + Each of these returns 0 [signifying "unknown"] if + the data is not present or if res_x is 0; + res_x_and_y is 0 if res_x != res_y + + Note that because of the way the resolutions are + stored internally, the inch conversions won't + come out to exactly even number. For example, + 72 dpi is stored as 0.28346 pixels/meter, and + when this is retrieved it is 71.9988 dpi, so + be sure to round the returned value appropriately + if you want to display a reasonable-looking result. + +The data from the oFFs chunk can be retrieved in several convenient +forms: + + x_offset = png_get_x_offset_microns(png_ptr, info_ptr); + + y_offset = png_get_y_offset_microns(png_ptr, info_ptr); + + x_offset = png_get_x_offset_inches(png_ptr, info_ptr); + + y_offset = png_get_y_offset_inches(png_ptr, info_ptr); + + Each of these returns 0 [signifying "unknown" if both + x and y are 0] if the data is not present or if the + chunk is present but the unit is the pixel. The + remark about inexact inch conversions applies here + as well, because a value in inches can't always be + converted to microns and back without some loss + of precision. + +For more information, see the +PNG specification for chunk contents. Be careful with trusting +rowbytes, as some of the transformations could increase the space +needed to hold a row (expand, filler, gray_to_rgb, etc.). +See png_read_update_info(), below. + +A quick word about text_ptr and num_text. PNG stores comments in +keyword/text pairs, one pair per chunk, with no limit on the number +of text chunks, and a 2^31 byte limit on their size. While there are +suggested keywords, there is no requirement to restrict the use to these +strings. It is strongly suggested that keywords and text be sensible +to humans (that's the point), so don't use abbreviations. Non-printing +symbols are not allowed. See the PNG specification for more details. +There is also no requirement to have text after the keyword. + +Keywords should be limited to 79 Latin-1 characters without leading or +trailing spaces, but non-consecutive spaces are allowed within the +keyword. It is possible to have the same keyword any number of times. +The text_ptr is an array of png_text structures, each holding a +pointer to a language string, a pointer to a keyword and a pointer to +a text string. The text string, language code, and translated +keyword may be empty or NULL pointers. The keyword/text +pairs are put into the array in the order that they are received. +However, some or all of the text chunks may be after the image, so, to +make sure you have read all the text chunks, don't mess with these +until after you read the stuff after the image. This will be +mentioned again below in the discussion that goes with png_read_end(). + +Input transformations + +After you've read the header information, you can set up the library +to handle any special transformations of the image data. The various +ways to transform the data will be described in the order that they +should occur. This is important, as some of these change the color +type and/or bit depth of the data, and some others only work on +certain color types and bit depths. + +Transformations you request are ignored if they don't have any meaning for a +particular input data format. However some transformations can have an effect +as a result of a previous transformation. If you specify a contradictory set of +transformations, for example both adding and removing the alpha channel, you +cannot predict the final result. + +The color used for the transparency values should be supplied in the same +format/depth as the current image data. It is stored in the same format/depth +as the image data in a tRNS chunk, so this is what libpng expects for this data. + +The color used for the background value depends on the need_expand argument as +described below. + +Data will be decoded into the supplied row buffers packed into bytes +unless the library has been told to transform it into another format. +For example, 4 bit/pixel paletted or grayscale data will be returned +2 pixels/byte with the leftmost pixel in the high-order bits of the +byte, unless png_set_packing() is called. 8-bit RGB data will be stored +in RGB RGB RGB format unless png_set_filler() or png_set_add_alpha() +is called to insert filler bytes, either before or after each RGB triplet. +16-bit RGB data will be returned RRGGBB RRGGBB, with the most significant +byte of the color value first, unless png_set_scale_16() is called to +transform it to regular RGB RGB triplets, or png_set_filler() or +png_set_add alpha() is called to insert filler bytes, either before or +after each RRGGBB triplet. Similarly, 8-bit or 16-bit grayscale data can +be modified with png_set_filler(), png_set_add_alpha(), png_set_strip_16(), +or png_set_scale_16(). + +The following code transforms grayscale images of less than 8 to 8 bits, +changes paletted images to RGB, and adds a full alpha channel if there is +transparency information in a tRNS chunk. This is most useful on +grayscale images with bit depths of 2 or 4 or if there is a multiple-image +viewing application that wishes to treat all images in the same way. + + if (color_type == PNG_COLOR_TYPE_PALETTE) + png_set_palette_to_rgb(png_ptr); + + if (png_get_valid(png_ptr, info_ptr, + PNG_INFO_tRNS)) png_set_tRNS_to_alpha(png_ptr); + + if (color_type == PNG_COLOR_TYPE_GRAY && + bit_depth < 8) png_set_expand_gray_1_2_4_to_8(png_ptr); + +The first two functions are actually aliases for png_set_expand(), added +in libpng version 1.0.4, with the function names expanded to improve code +readability. In some future version they may actually do different +things. + +As of libpng version 1.2.9, png_set_expand_gray_1_2_4_to_8() was +added. It expands the sample depth without changing tRNS to alpha. + +As of libpng version 1.5.2, png_set_expand_16() was added. It behaves as +png_set_expand(); however, the resultant channels have 16 bits rather than 8. +Use this when the output color or gray channels are made linear to avoid fairly +severe accuracy loss. + + if (bit_depth < 16) + png_set_expand_16(png_ptr); + +PNG can have files with 16 bits per channel. If you only can handle +8 bits per channel, this will strip the pixels down to 8-bit. + + if (bit_depth == 16) +#if PNG_LIBPNG_VER >= 10504 + png_set_scale_16(png_ptr); +#else + png_set_strip_16(png_ptr); +#endif + +(The more accurate "png_set_scale_16()" API became available in libpng version +1.5.4). + +If you need to process the alpha channel on the image separately from the image +data (for example if you convert it to a bitmap mask) it is possible to have +libpng strip the channel leaving just RGB or gray data: + + if (color_type & PNG_COLOR_MASK_ALPHA) + png_set_strip_alpha(png_ptr); + +If you strip the alpha channel you need to find some other way of dealing with +the information. If, instead, you want to convert the image to an opaque +version with no alpha channel use png_set_background; see below. + +As of libpng version 1.5.2, almost all useful expansions are supported, the +major ommissions are conversion of grayscale to indexed images (which can be +done trivially in the application) and conversion of indexed to grayscale (which +can be done by a trivial manipulation of the palette.) + +In the following table, the 01 means grayscale with depth<8, 31 means +indexed with depth<8, other numerals represent the color type, "T" means +the tRNS chunk is present, A means an alpha channel is present, and O +means tRNS or alpha is present but all pixels in the image are opaque. + + FROM 01 31 0 0T 0O 2 2T 2O 3 3T 3O 4A 4O 6A 6O + TO + 01 - [G] - - - - - - - - - - - - - + 31 [Q] Q [Q] [Q] [Q] Q Q Q Q Q Q [Q] [Q] Q Q + 0 1 G + . . G G G G G G B B GB GB + 0T lt Gt t + . Gt G G Gt G G Bt Bt GBt GBt + 0O lt Gt t . + Gt Gt G Gt Gt G Bt Bt GBt GBt + 2 C P C C C + . . C - - CB CB B B + 2T Ct - Ct C C t + t - - - CBt CBt Bt Bt + 2O Ct - Ct C C t t + - - - CBt CBt Bt Bt + 3 [Q] p [Q] [Q] [Q] Q Q Q + . . [Q] [Q] Q Q + 3T [Qt] p [Qt][Q] [Q] Qt Qt Qt t + t [Qt][Qt] Qt Qt + 3O [Qt] p [Qt][Q] [Q] Qt Qt Qt t t + [Qt][Qt] Qt Qt + 4A lA G A T T GA GT GT GA GT GT + BA G GBA + 4O lA GBA A T T GA GT GT GA GT GT BA + GBA G + 6A CA PA CA C C A T tT PA P P C CBA + BA + 6O CA PBA CA C C A tT T PA P P CBA C BA + + +Within the matrix, + "+" identifies entries where 'from' and 'to' are the same. + "-" means the transformation is not supported. + "." means nothing is necessary (a tRNS chunk can just be ignored). + "t" means the transformation is obtained by png_set_tRNS. + "A" means the transformation is obtained by png_set_add_alpha(). + "X" means the transformation is obtained by png_set_expand(). + "1" means the transformation is obtained by + png_set_expand_gray_1_2_4_to_8() (and by png_set_expand() + if there is no transparency in the original or the final + format). + "C" means the transformation is obtained by png_set_gray_to_rgb(). + "G" means the transformation is obtained by png_set_rgb_to_gray(). + "P" means the transformation is obtained by + png_set_expand_palette_to_rgb(). + "p" means the transformation is obtained by png_set_packing(). + "Q" means the transformation is obtained by png_set_quantize(). + "T" means the transformation is obtained by + png_set_tRNS_to_alpha(). + "B" means the transformation is obtained by + png_set_background(), or png_strip_alpha(). + +When an entry has multiple transforms listed all are required to cause the +right overall transformation. When two transforms are separated by a comma +either will do the job. When transforms are enclosed in [] the transform should +do the job but this is currently unimplemented - a different format will result +if the suggested transformations are used. + +In PNG files, the alpha channel in an image +is the level of opacity. If you need the alpha channel in an image to +be the level of transparency instead of opacity, you can invert the +alpha channel (or the tRNS chunk data) after it's read, so that 0 is +fully opaque and 255 (in 8-bit or paletted images) or 65535 (in 16-bit +images) is fully transparent, with + + png_set_invert_alpha(png_ptr); + +PNG files pack pixels of bit depths 1, 2, and 4 into bytes as small as +they can, resulting in, for example, 8 pixels per byte for 1 bit +files. This code expands to 1 pixel per byte without changing the +values of the pixels: + + if (bit_depth < 8) + png_set_packing(png_ptr); + +PNG files have possible bit depths of 1, 2, 4, 8, and 16. All pixels +stored in a PNG image have been "scaled" or "shifted" up to the next +higher possible bit depth (e.g. from 5 bits/sample in the range [0,31] +to 8 bits/sample in the range [0, 255]). However, it is also possible +to convert the PNG pixel data back to the original bit depth of the +image. This call reduces the pixels back down to the original bit depth: + + png_color_8p sig_bit; + + if (png_get_sBIT(png_ptr, info_ptr, &sig_bit)) + png_set_shift(png_ptr, sig_bit); + +PNG files store 3-color pixels in red, green, blue order. This code +changes the storage of the pixels to blue, green, red: + + if (color_type == PNG_COLOR_TYPE_RGB || + color_type == PNG_COLOR_TYPE_RGB_ALPHA) + png_set_bgr(png_ptr); + +PNG files store RGB pixels packed into 3 or 6 bytes. This code expands them +into 4 or 8 bytes for windowing systems that need them in this format: + + if (color_type == PNG_COLOR_TYPE_RGB) + png_set_filler(png_ptr, filler, PNG_FILLER_BEFORE); + +where "filler" is the 8 or 16-bit number to fill with, and the location is +either PNG_FILLER_BEFORE or PNG_FILLER_AFTER, depending upon whether +you want the filler before the RGB or after. This transformation +does not affect images that already have full alpha channels. To add an +opaque alpha channel, use filler=0xff or 0xffff and PNG_FILLER_AFTER which +will generate RGBA pixels. + +Note that png_set_filler() does not change the color type. If you want +to do that, you can add a true alpha channel with + + if (color_type == PNG_COLOR_TYPE_RGB || + color_type == PNG_COLOR_TYPE_GRAY) + png_set_add_alpha(png_ptr, filler, PNG_FILLER_AFTER); + +where "filler" contains the alpha value to assign to each pixel. +This function was added in libpng-1.2.7. + +If you are reading an image with an alpha channel, and you need the +data as ARGB instead of the normal PNG format RGBA: + + if (color_type == PNG_COLOR_TYPE_RGB_ALPHA) + png_set_swap_alpha(png_ptr); + +For some uses, you may want a grayscale image to be represented as +RGB. This code will do that conversion: + + if (color_type == PNG_COLOR_TYPE_GRAY || + color_type == PNG_COLOR_TYPE_GRAY_ALPHA) + png_set_gray_to_rgb(png_ptr); + +Conversely, you can convert an RGB or RGBA image to grayscale or grayscale +with alpha. + + if (color_type == PNG_COLOR_TYPE_RGB || + color_type == PNG_COLOR_TYPE_RGB_ALPHA) + png_set_rgb_to_gray(png_ptr, error_action, + double red_weight, double green_weight); + + error_action = 1: silently do the conversion + + error_action = 2: issue a warning if the original + image has any pixel where + red != green or red != blue + + error_action = 3: issue an error and abort the + conversion if the original + image has any pixel where + red != green or red != blue + + red_weight: weight of red component + + green_weight: weight of green component + If either weight is negative, default + weights are used. + +In the corresponding fixed point API the red_weight and green_weight values are +simply scaled by 100,000: + + png_set_rgb_to_gray(png_ptr, error_action, + png_fixed_point red_weight, + png_fixed_point green_weight); + +If you have set error_action = 1 or 2, you can +later check whether the image really was gray, after processing +the image rows, with the png_get_rgb_to_gray_status(png_ptr) function. +It will return a png_byte that is zero if the image was gray or +1 if there were any non-gray pixels. Background and sBIT data +will be silently converted to grayscale, using the green channel +data for sBIT, regardless of the error_action setting. + +The default values come from the PNG file cHRM chunk if present; otherwise, the +defaults correspond to the ITU-R recommendation 709, and also the sRGB color +space, as recommended in the Charles Poynton's Colour FAQ, +, in section 9: + + + + Y = 0.2126 * R + 0.7152 * G + 0.0722 * B + +Previous versions of this document, 1998 through 2002, recommended a slightly +different formula: + + Y = 0.212671 * R + 0.715160 * G + 0.072169 * B + +Libpng uses an integer approximation: + + Y = (6968 * R + 23434 * G + 2366 * B)/32768 + +The calculation is done in a linear colorspace, if the image gamma +can be determined. + +The png_set_background() function has been described already; it tells libpng to +composite images with alpha or simple transparency against the supplied +background color. For compatibility with versions of libpng earlier than +libpng-1.5.4 it is recommended that you call the function after reading the file +header, even if you don't want to use the color in a bKGD chunk, if one exists. + +If the PNG file contains a bKGD chunk (PNG_INFO_bKGD valid), +you may use this color, or supply another color more suitable for +the current display (e.g., the background color from a web page). You +need to tell libpng how the color is represented, both the format of the +component values in the color (the number of bits) and the gamma encoding of the +color. The function takes two arguments, background_gamma_mode and need_expand +to convey this information; however, only two combinations are likely to be +useful: + + png_color_16 my_background; + png_color_16p image_background; + + if (png_get_bKGD(png_ptr, info_ptr, &image_background)) + png_set_background(png_ptr, image_background, + PNG_BACKGROUND_GAMMA_FILE, 1/*needs to be expanded*/, 1); + else + png_set_background(png_ptr, &my_background, + PNG_BACKGROUND_GAMMA_SCREEN, 0/*do not expand*/, 1); + +The second call was described above - my_background is in the format of the +final, display, output produced by libpng. Because you now know the format of +the PNG it is possible to avoid the need to choose either 8-bit or 16-bit +output and to retain palette images (the palette colors will be modified +appropriately and the tRNS chunk removed.) However, if you are doing this, +take great care not to ask for transformations without checking first that +they apply! + +In the first call the background color has the original bit depth and color type +of the PNG file. So, for palette images the color is supplied as a palette +index and for low bit greyscale images the color is a reduced bit value in +image_background->gray. + +If you didn't call png_set_gamma() before reading the file header, for example +if you need your code to remain compatible with older versions of libpng prior +to libpng-1.5.4, this is the place to call it. + +Do not call it if you called png_set_alpha_mode(); doing so will damage the +settings put in place by png_set_alpha_mode(). (If png_set_alpha_mode() is +supported then you can certainly do png_set_gamma() before reading the PNG +header.) + +This API unconditionally sets the screen and file gamma values, so it will +override the value in the PNG file unless it is called before the PNG file +reading starts. For this reason you must always call it with the PNG file +value when you call it in this position: + + if (png_get_gAMA(png_ptr, info_ptr, &file_gamma)) + png_set_gamma(png_ptr, screen_gamma, file_gamma); + + else + png_set_gamma(png_ptr, screen_gamma, 0.45455); + +If you need to reduce an RGB file to a paletted file, or if a paletted +file has more entries then will fit on your screen, png_set_quantize() +will do that. Note that this is a simple match quantization that merely +finds the closest color available. This should work fairly well with +optimized palettes, but fairly badly with linear color cubes. If you +pass a palette that is larger than maximum_colors, the file will +reduce the number of colors in the palette so it will fit into +maximum_colors. If there is a histogram, libpng will use it to make +more intelligent choices when reducing the palette. If there is no +histogram, it may not do as good a job. + + if (color_type & PNG_COLOR_MASK_COLOR) + { + if (png_get_valid(png_ptr, info_ptr, + PNG_INFO_PLTE)) + { + png_uint_16p histogram = NULL; + + png_get_hIST(png_ptr, info_ptr, + &histogram); + png_set_quantize(png_ptr, palette, num_palette, + max_screen_colors, histogram, 1); + } + + else + { + png_color std_color_cube[MAX_SCREEN_COLORS] = + { ... colors ... }; + + png_set_quantize(png_ptr, std_color_cube, + MAX_SCREEN_COLORS, MAX_SCREEN_COLORS, + NULL,0); + } + } + +PNG files describe monochrome as black being zero and white being one. +The following code will reverse this (make black be one and white be +zero): + + if (bit_depth == 1 && color_type == PNG_COLOR_TYPE_GRAY) + png_set_invert_mono(png_ptr); + +This function can also be used to invert grayscale and gray-alpha images: + + if (color_type == PNG_COLOR_TYPE_GRAY || + color_type == PNG_COLOR_TYPE_GRAY_ALPHA) + png_set_invert_mono(png_ptr); + +PNG files store 16-bit pixels in network byte order (big-endian, +ie. most significant bits first). This code changes the storage to the +other way (little-endian, i.e. least significant bits first, the +way PCs store them): + + if (bit_depth == 16) + png_set_swap(png_ptr); + +If you are using packed-pixel images (1, 2, or 4 bits/pixel), and you +need to change the order the pixels are packed into bytes, you can use: + + if (bit_depth < 8) + png_set_packswap(png_ptr); + +Finally, you can write your own transformation function if none of +the existing ones meets your needs. This is done by setting a callback +with + + png_set_read_user_transform_fn(png_ptr, + read_transform_fn); + +You must supply the function + + void read_transform_fn(png_structp png_ptr, png_row_infop + row_info, png_bytep data) + +See pngtest.c for a working example. Your function will be called +after all of the other transformations have been processed. Take care with +interlaced images if you do the interlace yourself - the width of the row is the +width in 'row_info', not the overall image width. + +If supported, libpng provides two information routines that you can use to find +where you are in processing the image: + + png_get_current_pass_number(png_structp png_ptr); + png_get_current_row_number(png_structp png_ptr); + +Don't try using these outside a transform callback - firstly they are only +supported if user transforms are supported, secondly they may well return +unexpected results unless the row is actually being processed at the moment they +are called. + +With interlaced +images the value returned is the row in the input sub-image image. Use +PNG_ROW_FROM_PASS_ROW(row, pass) and PNG_COL_FROM_PASS_COL(col, pass) to +find the output pixel (x,y) given an interlaced sub-image pixel (row,col,pass). + +The discussion of interlace handling above contains more information on how to +use these values. + +You can also set up a pointer to a user structure for use by your +callback function, and you can inform libpng that your transform +function will change the number of channels or bit depth with the +function + + png_set_user_transform_info(png_ptr, user_ptr, + user_depth, user_channels); + +The user's application, not libpng, is responsible for allocating and +freeing any memory required for the user structure. + +You can retrieve the pointer via the function +png_get_user_transform_ptr(). For example: + + voidp read_user_transform_ptr = + png_get_user_transform_ptr(png_ptr); + +The last thing to handle is interlacing; this is covered in detail below, +but you must call the function here if you want libpng to handle expansion +of the interlaced image. + + number_of_passes = png_set_interlace_handling(png_ptr); + +After setting the transformations, libpng can update your png_info +structure to reflect any transformations you've requested with this +call. + + png_read_update_info(png_ptr, info_ptr); + +This is most useful to update the info structure's rowbytes +field so you can use it to allocate your image memory. This function +will also update your palette with the correct screen_gamma and +background if these have been given with the calls above. You may +only call png_read_update_info() once with a particular info_ptr. + +After you call png_read_update_info(), you can allocate any +memory you need to hold the image. The row data is simply +raw byte data for all forms of images. As the actual allocation +varies among applications, no example will be given. If you +are allocating one large chunk, you will need to build an +array of pointers to each row, as it will be needed for some +of the functions below. + +Remember: Before you call png_read_update_info(), the png_get_*() +functions return the values corresponding to the original PNG image. +After you call png_read_update_info the values refer to the image +that libpng will output. Consequently you must call all the png_set_ +functions before you call png_read_update_info(). This is particularly +important for png_set_interlace_handling() - if you are going to call +png_read_update_info() you must call png_set_interlace_handling() before +it unless you want to receive interlaced output. + +Reading image data + +After you've allocated memory, you can read the image data. +The simplest way to do this is in one function call. If you are +allocating enough memory to hold the whole image, you can just +call png_read_image() and libpng will read in all the image data +and put it in the memory area supplied. You will need to pass in +an array of pointers to each row. + +This function automatically handles interlacing, so you don't +need to call png_set_interlace_handling() (unless you call +png_read_update_info()) or call this function multiple times, or any +of that other stuff necessary with png_read_rows(). + + png_read_image(png_ptr, row_pointers); + +where row_pointers is: + + png_bytep row_pointers[height]; + +You can point to void or char or whatever you use for pixels. + +If you don't want to read in the whole image at once, you can +use png_read_rows() instead. If there is no interlacing (check +interlace_type == PNG_INTERLACE_NONE), this is simple: + + png_read_rows(png_ptr, row_pointers, NULL, + number_of_rows); + +where row_pointers is the same as in the png_read_image() call. + +If you are doing this just one row at a time, you can do this with +a single row_pointer instead of an array of row_pointers: + + png_bytep row_pointer = row; + png_read_row(png_ptr, row_pointer, NULL); + +If the file is interlaced (interlace_type != 0 in the IHDR chunk), things +get somewhat harder. The only current (PNG Specification version 1.2) +interlacing type for PNG is (interlace_type == PNG_INTERLACE_ADAM7); +a somewhat complicated 2D interlace scheme, known as Adam7, that +breaks down an image into seven smaller images of varying size, based +on an 8x8 grid. This number is defined (from libpng 1.5) as +PNG_INTERLACE_ADAM7_PASSES in png.h + +libpng can fill out those images or it can give them to you "as is". +It is almost always better to have libpng handle the interlacing for you. +If you want the images filled out, there are two ways to do that. The one +mentioned in the PNG specification is to expand each pixel to cover +those pixels that have not been read yet (the "rectangle" method). +This results in a blocky image for the first pass, which gradually +smooths out as more pixels are read. The other method is the "sparkle" +method, where pixels are drawn only in their final locations, with the +rest of the image remaining whatever colors they were initialized to +before the start of the read. The first method usually looks better, +but tends to be slower, as there are more pixels to put in the rows. + +If, as is likely, you want libpng to expand the images, call this before +calling png_start_read_image() or png_read_update_info(): + + if (interlace_type == PNG_INTERLACE_ADAM7) + number_of_passes + = png_set_interlace_handling(png_ptr); + +This will return the number of passes needed. Currently, this is seven, +but may change if another interlace type is added. This function can be +called even if the file is not interlaced, where it will return one pass. +You then need to read the whole image 'number_of_passes' times. Each time +will distribute the pixels from the current pass to the correct place in +the output image, so you need to supply the same rows to png_read_rows in +each pass. + +If you are not going to display the image after each pass, but are +going to wait until the entire image is read in, use the sparkle +effect. This effect is faster and the end result of either method +is exactly the same. If you are planning on displaying the image +after each pass, the "rectangle" effect is generally considered the +better looking one. + +If you only want the "sparkle" effect, just call png_read_rows() as +normal, with the third parameter NULL. Make sure you make pass over +the image number_of_passes times, and you don't change the data in the +rows between calls. You can change the locations of the data, just +not the data. Each pass only writes the pixels appropriate for that +pass, and assumes the data from previous passes is still valid. + + png_read_rows(png_ptr, row_pointers, NULL, + number_of_rows); + +If you only want the first effect (the rectangles), do the same as +before except pass the row buffer in the third parameter, and leave +the second parameter NULL. + + png_read_rows(png_ptr, NULL, row_pointers, + number_of_rows); + +If you don't want libpng to handle the interlacing details, just call +png_read_rows() PNG_INTERLACE_ADAM7_PASSES times to read in all the images. +Each of the images is a valid image by itself; however, you will almost +certainly need to distribute the pixels from each sub-image to the +correct place. This is where everything gets very tricky. + +If you want to retrieve the separate images you must pass the correct +number of rows to each successive call of png_read_rows(). The calculation +gets pretty complicated for small images, where some sub-images may +not even exist because either their width or height ends up zero. +libpng provides two macros to help you in 1.5 and later versions: + + png_uint_32 width = PNG_PASS_COLS(image_width, pass_number); + png_uint_32 height = PNG_PASS_ROWS(image_height, pass_number); + +Respectively these tell you the width and height of the sub-image +corresponding to the numbered pass. 'pass' is in in the range 0 to 6 - +this can be confusing because the specification refers to the same passes +as 1 to 7! Be careful, you must check both the width and height before +calling png_read_rows() and not call it for that pass if either is zero. + +You can, of course, read each sub-image row by row. If you want to +produce optimal code to make a pixel-by-pixel transformation of an +interlaced image this is the best approach; read each row of each pass, +transform it, and write it out to a new interlaced image. + +If you want to de-interlace the image yourself libpng provides further +macros to help that tell you where to place the pixels in the output image. +Because the interlacing scheme is rectangular - sub-image pixels are always +arranged on a rectangular grid - all you need to know for each pass is the +starting column and row in the output image of the first pixel plus the +spacing between each pixel. As of libpng 1.5 there are four macros to +retrieve this information: + + png_uint_32 x = PNG_PASS_START_COL(pass); + png_uint_32 y = PNG_PASS_START_ROW(pass); + png_uint_32 xStep = 1U << PNG_PASS_COL_SHIFT(pass); + png_uint_32 yStep = 1U << PNG_PASS_ROW_SHIFT(pass); + +These allow you to write the obvious loop: + + png_uint_32 input_y = 0; + png_uint_32 output_y = PNG_PASS_START_ROW(pass); + + while (output_y < output_image_height) + { + png_uint_32 input_x = 0; + png_uint_32 output_x = PNG_PASS_START_COL(pass); + + while (output_x < output_image_width) + { + image[output_y][output_x] = + subimage[pass][input_y][input_x++]; + + output_x += xStep; + } + + ++input_y; + output_y += yStep; + } + +Notice that the steps between successive output rows and columns are +returned as shifts. This is possible because the pixels in the subimages +are always a power of 2 apart - 1, 2, 4 or 8 pixels - in the original +image. In practice you may need to directly calculate the output coordinate +given an input coordinate. libpng provides two further macros for this +purpose: + + png_uint_32 output_x = PNG_COL_FROM_PASS_COL(input_x, pass); + png_uint_32 output_y = PNG_ROW_FROM_PASS_ROW(input_y, pass); + +Finally a pair of macros are provided to tell you if a particular image +row or column appears in a given pass: + + int col_in_pass = PNG_COL_IN_INTERLACE_PASS(output_x, pass); + int row_in_pass = PNG_ROW_IN_INTERLACE_PASS(output_y, pass); + +Bear in mind that you will probably also need to check the width and height +of the pass in addition to the above to be sure the pass even exists! + +With any luck you are convinced by now that you don't want to do your own +interlace handling. In reality normally the only good reason for doing this +is if you are processing PNG files on a pixel-by-pixel basis and don't want +to load the whole file into memory when it is interlaced. + +libpng includes a test program, pngvalid, that illustrates reading and +writing of interlaced images. If you can't get interlacing to work in your +code and don't want to leave it to libpng (the recommended approach), see +how pngvalid.c does it. + +Finishing a sequential read + +After you are finished reading the image through the +low-level interface, you can finish reading the file. + +If you want to use a different crc action for handling CRC errors in +chunks after the image data, you can call png_set_crc_action() +again at this point. + +If you are interested in comments or time, which may be stored either +before or after the image data, you should pass the separate png_info +struct if you want to keep the comments from before and after the image +separate. + + png_infop end_info = png_create_info_struct(png_ptr); + + if (!end_info) + { + png_destroy_read_struct(&png_ptr, &info_ptr, + (png_infopp)NULL); + return (ERROR); + } + + png_read_end(png_ptr, end_info); + +If you are not interested, you should still call png_read_end() +but you can pass NULL, avoiding the need to create an end_info structure. +If you do this, libpng will not process any chunks after IDAT other than +skipping over them and perhaps (depending on whether you have called +png_set_crc_action) checking their CRCs while looking for the IEND chunk. + + png_read_end(png_ptr, (png_infop)NULL); + +If you don't call png_read_end(), then your file pointer will be +left pointing to the first chunk after the last IDAT, which is probably +not what you want if you expect to read something beyond the end of +the PNG datastream. + +When you are done, you can free all memory allocated by libpng like this: + + png_destroy_read_struct(&png_ptr, &info_ptr, + &end_info); + +or, if you didn't create an end_info structure, + + png_destroy_read_struct(&png_ptr, &info_ptr, + (png_infopp)NULL); + +It is also possible to individually free the info_ptr members that +point to libpng-allocated storage with the following function: + + png_free_data(png_ptr, info_ptr, mask, seq) + + mask - identifies data to be freed, a mask + containing the bitwise OR of one or + more of + PNG_FREE_PLTE, PNG_FREE_TRNS, + PNG_FREE_HIST, PNG_FREE_ICCP, + PNG_FREE_PCAL, PNG_FREE_ROWS, + PNG_FREE_SCAL, PNG_FREE_SPLT, + PNG_FREE_TEXT, PNG_FREE_UNKN, + or simply PNG_FREE_ALL + + seq - sequence number of item to be freed + (-1 for all items) + +This function may be safely called when the relevant storage has +already been freed, or has not yet been allocated, or was allocated +by the user and not by libpng, and will in those cases do nothing. +The "seq" parameter is ignored if only one item of the selected data +type, such as PLTE, is allowed. If "seq" is not -1, and multiple items +are allowed for the data type identified in the mask, such as text or +sPLT, only the n'th item in the structure is freed, where n is "seq". + +The default behavior is only to free data that was allocated internally +by libpng. This can be changed, so that libpng will not free the data, +or so that it will free data that was allocated by the user with png_malloc() +or png_calloc() and passed in via a png_set_*() function, with + + png_data_freer(png_ptr, info_ptr, freer, mask) + + freer - one of + PNG_DESTROY_WILL_FREE_DATA + PNG_SET_WILL_FREE_DATA + PNG_USER_WILL_FREE_DATA + + mask - which data elements are affected + same choices as in png_free_data() + +This function only affects data that has already been allocated. +You can call this function after reading the PNG data but before calling +any png_set_*() functions, to control whether the user or the png_set_*() +function is responsible for freeing any existing data that might be present, +and again after the png_set_*() functions to control whether the user +or png_destroy_*() is supposed to free the data. When the user assumes +responsibility for libpng-allocated data, the application must use +png_free() to free it, and when the user transfers responsibility to libpng +for data that the user has allocated, the user must have used png_malloc() +or png_calloc() to allocate it. + +If you allocated your row_pointers in a single block, as suggested above in +the description of the high level read interface, you must not transfer +responsibility for freeing it to the png_set_rows or png_read_destroy function, +because they would also try to free the individual row_pointers[i]. + +If you allocated text_ptr.text, text_ptr.lang, and text_ptr.translated_keyword +separately, do not transfer responsibility for freeing text_ptr to libpng, +because when libpng fills a png_text structure it combines these members with +the key member, and png_free_data() will free only text_ptr.key. Similarly, +if you transfer responsibility for free'ing text_ptr from libpng to your +application, your application must not separately free those members. + +The png_free_data() function will turn off the "valid" flag for anything +it frees. If you need to turn the flag off for a chunk that was freed by +your application instead of by libpng, you can use + + png_set_invalid(png_ptr, info_ptr, mask); + + mask - identifies the chunks to be made invalid, + containing the bitwise OR of one or + more of + PNG_INFO_gAMA, PNG_INFO_sBIT, + PNG_INFO_cHRM, PNG_INFO_PLTE, + PNG_INFO_tRNS, PNG_INFO_bKGD, + PNG_INFO_hIST, PNG_INFO_pHYs, + PNG_INFO_oFFs, PNG_INFO_tIME, + PNG_INFO_pCAL, PNG_INFO_sRGB, + PNG_INFO_iCCP, PNG_INFO_sPLT, + PNG_INFO_sCAL, PNG_INFO_IDAT + +For a more compact example of reading a PNG image, see the file example.c. + +Reading PNG files progressively + +The progressive reader is slightly different from the non-progressive +reader. Instead of calling png_read_info(), png_read_rows(), and +png_read_end(), you make one call to png_process_data(), which calls +callbacks when it has the info, a row, or the end of the image. You +set up these callbacks with png_set_progressive_read_fn(). You don't +have to worry about the input/output functions of libpng, as you are +giving the library the data directly in png_process_data(). I will +assume that you have read the section on reading PNG files above, +so I will only highlight the differences (although I will show +all of the code). + +png_structp png_ptr; +png_infop info_ptr; + + /* An example code fragment of how you would + initialize the progressive reader in your + application. */ + int + initialize_png_reader() + { + png_ptr = png_create_read_struct + (PNG_LIBPNG_VER_STRING, (png_voidp)user_error_ptr, + user_error_fn, user_warning_fn); + + if (!png_ptr) + return (ERROR); + + info_ptr = png_create_info_struct(png_ptr); + + if (!info_ptr) + { + png_destroy_read_struct(&png_ptr, + (png_infopp)NULL, (png_infopp)NULL); + return (ERROR); + } + + if (setjmp(png_jmpbuf(png_ptr))) + { + png_destroy_read_struct(&png_ptr, &info_ptr, + (png_infopp)NULL); + return (ERROR); + } + + /* This one's new. You can provide functions + to be called when the header info is valid, + when each row is completed, and when the image + is finished. If you aren't using all functions, + you can specify NULL parameters. Even when all + three functions are NULL, you need to call + png_set_progressive_read_fn(). You can use + any struct as the user_ptr (cast to a void pointer + for the function call), and retrieve the pointer + from inside the callbacks using the function + + png_get_progressive_ptr(png_ptr); + + which will return a void pointer, which you have + to cast appropriately. + */ + png_set_progressive_read_fn(png_ptr, (void *)user_ptr, + info_callback, row_callback, end_callback); + + return 0; + } + + /* A code fragment that you call as you receive blocks + of data */ + int + process_data(png_bytep buffer, png_uint_32 length) + { + if (setjmp(png_jmpbuf(png_ptr))) + { + png_destroy_read_struct(&png_ptr, &info_ptr, + (png_infopp)NULL); + return (ERROR); + } + + /* This one's new also. Simply give it a chunk + of data from the file stream (in order, of + course). On machines with segmented memory + models machines, don't give it any more than + 64K. The library seems to run fine with sizes + of 4K. Although you can give it much less if + necessary (I assume you can give it chunks of + 1 byte, I haven't tried less then 256 bytes + yet). When this function returns, you may + want to display any rows that were generated + in the row callback if you don't already do + so there. + */ + png_process_data(png_ptr, info_ptr, buffer, length); + + /* At this point you can call png_process_data_skip if + you want to handle data the library will skip yourself; + it simply returns the number of bytes to skip (and stops + libpng skipping that number of bytes on the next + png_process_data call). + return 0; + } + + /* This function is called (as set by + png_set_progressive_read_fn() above) when enough data + has been supplied so all of the header has been + read. + */ + void + info_callback(png_structp png_ptr, png_infop info) + { + /* Do any setup here, including setting any of + the transformations mentioned in the Reading + PNG files section. For now, you _must_ call + either png_start_read_image() or + png_read_update_info() after all the + transformations are set (even if you don't set + any). You may start getting rows before + png_process_data() returns, so this is your + last chance to prepare for that. + + This is where you turn on interlace handling, + assuming you don't want to do it yourself. + + If you need to you can stop the processing of + your original input data at this point by calling + png_process_data_pause. This returns the number + of unprocessed bytes from the last png_process_data + call - it is up to you to ensure that the next call + sees these bytes again. If you don't want to bother + with this you can get libpng to cache the unread + bytes by setting the 'save' parameter (see png.h) but + then libpng will have to copy the data internally. + */ + } + + /* This function is called when each row of image + data is complete */ + void + row_callback(png_structp png_ptr, png_bytep new_row, + png_uint_32 row_num, int pass) + { + /* If the image is interlaced, and you turned + on the interlace handler, this function will + be called for every row in every pass. Some + of these rows will not be changed from the + previous pass. When the row is not changed, + the new_row variable will be NULL. The rows + and passes are called in order, so you don't + really need the row_num and pass, but I'm + supplying them because it may make your life + easier. + + If you did not turn on interlace handling then + the callback is called for each row of each + sub-image when the image is interlaced. In this + case 'row_num' is the row in the sub-image, not + the row in the output image as it is in all other + cases. + + For the non-NULL rows of interlaced images when + you have switched on libpng interlace handling, + you must call png_progressive_combine_row() + passing in the row and the old row. You can + call this function for NULL rows (it will just + return) and for non-interlaced images (it just + does the memcpy for you) if it will make the + code easier. Thus, you can just do this for + all cases if you switch on interlace handling; + */ + + png_progressive_combine_row(png_ptr, old_row, + new_row); + + /* where old_row is what was displayed + previously for the row. Note that the first + pass (pass == 0, really) will completely cover + the old row, so the rows do not have to be + initialized. After the first pass (and only + for interlaced images), you will have to pass + the current row, and the function will combine + the old row and the new row. + + You can also call png_process_data_pause in this + callback - see above. + */ + } + + void + end_callback(png_structp png_ptr, png_infop info) + { + /* This function is called after the whole image + has been read, including any chunks after the + image (up to and including the IEND). You + will usually have the same info chunk as you + had in the header, although some data may have + been added to the comments and time fields. + + Most people won't do much here, perhaps setting + a flag that marks the image as finished. + */ + } + + + +IV. Writing + +Much of this is very similar to reading. However, everything of +importance is repeated here, so you won't have to constantly look +back up in the reading section to understand writing. + +Setup + +You will want to do the I/O initialization before you get into libpng, +so if it doesn't work, you don't have anything to undo. If you are not +using the standard I/O functions, you will need to replace them with +custom writing functions. See the discussion under Customizing libpng. + + FILE *fp = fopen(file_name, "wb"); + + if (!fp) + return (ERROR); + +Next, png_struct and png_info need to be allocated and initialized. +As these can be both relatively large, you may not want to store these +on the stack, unless you have stack space to spare. Of course, you +will want to check if they return NULL. If you are also reading, +you won't want to name your read structure and your write structure +both "png_ptr"; you can call them anything you like, such as +"read_ptr" and "write_ptr". Look at pngtest.c, for example. + + png_structp png_ptr = png_create_write_struct + (PNG_LIBPNG_VER_STRING, (png_voidp)user_error_ptr, + user_error_fn, user_warning_fn); + + if (!png_ptr) + return (ERROR); + + png_infop info_ptr = png_create_info_struct(png_ptr); + if (!info_ptr) + { + png_destroy_write_struct(&png_ptr, + (png_infopp)NULL); + return (ERROR); + } + +If you want to use your own memory allocation routines, +define PNG_USER_MEM_SUPPORTED and use +png_create_write_struct_2() instead of png_create_write_struct(): + + png_structp png_ptr = png_create_write_struct_2 + (PNG_LIBPNG_VER_STRING, (png_voidp)user_error_ptr, + user_error_fn, user_warning_fn, (png_voidp) + user_mem_ptr, user_malloc_fn, user_free_fn); + +After you have these structures, you will need to set up the +error handling. When libpng encounters an error, it expects to +longjmp() back to your routine. Therefore, you will need to call +setjmp() and pass the png_jmpbuf(png_ptr). If you +write the file from different routines, you will need to update +the png_jmpbuf(png_ptr) every time you enter a new routine that will +call a png_*() function. See your documentation of setjmp/longjmp +for your compiler for more information on setjmp/longjmp. See +the discussion on libpng error handling in the Customizing Libpng +section below for more information on the libpng error handling. + + if (setjmp(png_jmpbuf(png_ptr))) + { + png_destroy_write_struct(&png_ptr, &info_ptr); + fclose(fp); + return (ERROR); + } + ... + return; + +If you would rather avoid the complexity of setjmp/longjmp issues, +you can compile libpng with PNG_NO_SETJMP, in which case +errors will result in a call to PNG_ABORT() which defaults to abort(). + +You can #define PNG_ABORT() to a function that does something +more useful than abort(), as long as your function does not +return. + +Checking for invalid palette index on write was added at libpng +1.5.10. If a pixel contains an invalid (out-of-range) index libpng issues +a benign error. This is enabled by default because this condition is an +error according to the PNG specification, Clause 11.3.2, but the error can +be ignored in each png_ptr with + + png_set_check_for_invalid_index(png_ptr, 0); + +If the error is ignored, or if png_benign_error() treats it as a warning, +any invalid pixels are written as-is by the encoder, resulting in an +invalid PNG datastream as output. In this case the application is +responsible for ensuring that the pixel indexes are in range when it writes +a PLTE chunk with fewer entries than the bit depth would allow. + +Now you need to set up the output code. The default for libpng is to +use the C function fwrite(). If you use this, you will need to pass a +valid FILE * in the function png_init_io(). Be sure that the file is +opened in binary mode. Again, if you wish to handle writing data in +another way, see the discussion on libpng I/O handling in the Customizing +Libpng section below. + + png_init_io(png_ptr, fp); + +If you are embedding your PNG into a datastream such as MNG, and don't +want libpng to write the 8-byte signature, or if you have already +written the signature in your application, use + + png_set_sig_bytes(png_ptr, 8); + +to inform libpng that it should not write a signature. + +Write callbacks + +At this point, you can set up a callback function that will be +called after each row has been written, which you can use to control +a progress meter or the like. It's demonstrated in pngtest.c. +You must supply a function + + void write_row_callback(png_structp png_ptr, png_uint_32 row, + int pass); + { + /* put your code here */ + } + +(You can give it another name that you like instead of "write_row_callback") + +To inform libpng about your function, use + + png_set_write_status_fn(png_ptr, write_row_callback); + +When this function is called the row has already been completely processed and +it has also been written out. The 'row' and 'pass' refer to the next row to be +handled. For the +non-interlaced case the row that was just handled is simply one less than the +passed in row number, and pass will always be 0. For the interlaced case the +same applies unless the row value is 0, in which case the row just handled was +the last one from one of the preceding passes. Because interlacing may skip a +pass you cannot be sure that the preceding pass is just 'pass-1', if you really +need to know what the last pass is record (row,pass) from the callback and use +the last recorded value each time. + +As with the user transform you can find the output row using the +PNG_ROW_FROM_PASS_ROW macro. + +You now have the option of modifying how the compression library will +run. The following functions are mainly for testing, but may be useful +in some cases, like if you need to write PNG files extremely fast and +are willing to give up some compression, or if you want to get the +maximum possible compression at the expense of slower writing. If you +have no special needs in this area, let the library do what it wants by +not calling this function at all, as it has been tuned to deliver a good +speed/compression ratio. The second parameter to png_set_filter() is +the filter method, for which the only valid values are 0 (as of the +July 1999 PNG specification, version 1.2) or 64 (if you are writing +a PNG datastream that is to be embedded in a MNG datastream). The third +parameter is a flag that indicates which filter type(s) are to be tested +for each scanline. See the PNG specification for details on the specific +filter types. + + + /* turn on or off filtering, and/or choose + specific filters. You can use either a single + PNG_FILTER_VALUE_NAME or the bitwise OR of one + or more PNG_FILTER_NAME masks. + */ + png_set_filter(png_ptr, 0, + PNG_FILTER_NONE | PNG_FILTER_VALUE_NONE | + PNG_FILTER_SUB | PNG_FILTER_VALUE_SUB | + PNG_FILTER_UP | PNG_FILTER_VALUE_UP | + PNG_FILTER_AVG | PNG_FILTER_VALUE_AVG | + PNG_FILTER_PAETH | PNG_FILTER_VALUE_PAETH| + PNG_ALL_FILTERS); + +If an application wants to start and stop using particular filters during +compression, it should start out with all of the filters (to ensure that +the previous row of pixels will be stored in case it's needed later), +and then add and remove them after the start of compression. + +If you are writing a PNG datastream that is to be embedded in a MNG +datastream, the second parameter can be either 0 or 64. + +The png_set_compression_*() functions interface to the zlib compression +library, and should mostly be ignored unless you really know what you are +doing. The only generally useful call is png_set_compression_level() +which changes how much time zlib spends on trying to compress the image +data. See the Compression Library (zlib.h and algorithm.txt, distributed +with zlib) for details on the compression levels. + + #include zlib.h + + /* Set the zlib compression level */ + png_set_compression_level(png_ptr, + Z_BEST_COMPRESSION); + + /* Set other zlib parameters for compressing IDAT */ + png_set_compression_mem_level(png_ptr, 8); + png_set_compression_strategy(png_ptr, + Z_DEFAULT_STRATEGY); + png_set_compression_window_bits(png_ptr, 15); + png_set_compression_method(png_ptr, 8); + png_set_compression_buffer_size(png_ptr, 8192) + + /* Set zlib parameters for text compression + * If you don't call these, the parameters + * fall back on those defined for IDAT chunks + */ + png_set_text_compression_mem_level(png_ptr, 8); + png_set_text_compression_strategy(png_ptr, + Z_DEFAULT_STRATEGY); + png_set_text_compression_window_bits(png_ptr, 15); + png_set_text_compression_method(png_ptr, 8); + +Setting the contents of info for output + +You now need to fill in the png_info structure with all the data you +wish to write before the actual image. Note that the only thing you +are allowed to write after the image is the text chunks and the time +chunk (as of PNG Specification 1.2, anyway). See png_write_end() and +the latest PNG specification for more information on that. If you +wish to write them before the image, fill them in now, and flag that +data as being valid. If you want to wait until after the data, don't +fill them until png_write_end(). For all the fields in png_info and +their data types, see png.h. For explanations of what the fields +contain, see the PNG specification. + +Some of the more important parts of the png_info are: + + png_set_IHDR(png_ptr, info_ptr, width, height, + bit_depth, color_type, interlace_type, + compression_type, filter_method) + + width - holds the width of the image + in pixels (up to 2^31). + + height - holds the height of the image + in pixels (up to 2^31). + + bit_depth - holds the bit depth of one of the + image channels. + (valid values are 1, 2, 4, 8, 16 + and depend also on the + color_type. See also significant + bits (sBIT) below). + + color_type - describes which color/alpha + channels are present. + PNG_COLOR_TYPE_GRAY + (bit depths 1, 2, 4, 8, 16) + PNG_COLOR_TYPE_GRAY_ALPHA + (bit depths 8, 16) + PNG_COLOR_TYPE_PALETTE + (bit depths 1, 2, 4, 8) + PNG_COLOR_TYPE_RGB + (bit_depths 8, 16) + PNG_COLOR_TYPE_RGB_ALPHA + (bit_depths 8, 16) + + PNG_COLOR_MASK_PALETTE + PNG_COLOR_MASK_COLOR + PNG_COLOR_MASK_ALPHA + + interlace_type - PNG_INTERLACE_NONE or + PNG_INTERLACE_ADAM7 + + compression_type - (must be + PNG_COMPRESSION_TYPE_DEFAULT) + + filter_method - (must be PNG_FILTER_TYPE_DEFAULT + or, if you are writing a PNG to + be embedded in a MNG datastream, + can also be + PNG_INTRAPIXEL_DIFFERENCING) + +If you call png_set_IHDR(), the call must appear before any of the +other png_set_*() functions, because they might require access to some of +the IHDR settings. The remaining png_set_*() functions can be called +in any order. + +If you wish, you can reset the compression_type, interlace_type, or +filter_method later by calling png_set_IHDR() again; if you do this, the +width, height, bit_depth, and color_type must be the same in each call. + + png_set_PLTE(png_ptr, info_ptr, palette, + num_palette); + + palette - the palette for the file + (array of png_color) + num_palette - number of entries in the palette + + png_set_gAMA(png_ptr, info_ptr, file_gamma); + png_set_gAMA_fixed(png_ptr, info_ptr, int_file_gamma); + + file_gamma - the gamma at which the image was + created (PNG_INFO_gAMA) + + int_file_gamma - 100,000 times the gamma at which + the image was created + + png_set_cHRM(png_ptr, info_ptr, white_x, white_y, red_x, red_y, + green_x, green_y, blue_x, blue_y) + png_set_cHRM_XYZ(png_ptr, info_ptr, red_X, red_Y, red_Z, green_X, + green_Y, green_Z, blue_X, blue_Y, blue_Z) + png_set_cHRM_fixed(png_ptr, info_ptr, int_white_x, int_white_y, + int_red_x, int_red_y, int_green_x, int_green_y, + int_blue_x, int_blue_y) + png_set_cHRM_XYZ_fixed(png_ptr, info_ptr, int_red_X, int_red_Y, + int_red_Z, int_green_X, int_green_Y, int_green_Z, + int_blue_X, int_blue_Y, int_blue_Z) + + {white,red,green,blue}_{x,y} + A color space encoding specified using the chromaticities + of the end points and the white point. + + {red,green,blue}_{X,Y,Z} + A color space encoding specified using the encoding end + points - the CIE tristimulus specification of the intended + color of the red, green and blue channels in the PNG RGB + data. The white point is simply the sum of the three end + points. + + png_set_sRGB(png_ptr, info_ptr, srgb_intent); + + srgb_intent - the rendering intent + (PNG_INFO_sRGB) The presence of + the sRGB chunk means that the pixel + data is in the sRGB color space. + This chunk also implies specific + values of gAMA and cHRM. Rendering + intent is the CSS-1 property that + has been defined by the International + Color Consortium + (http://www.color.org). + It can be one of + PNG_sRGB_INTENT_SATURATION, + PNG_sRGB_INTENT_PERCEPTUAL, + PNG_sRGB_INTENT_ABSOLUTE, or + PNG_sRGB_INTENT_RELATIVE. + + + png_set_sRGB_gAMA_and_cHRM(png_ptr, info_ptr, + srgb_intent); + + srgb_intent - the rendering intent + (PNG_INFO_sRGB) The presence of the + sRGB chunk means that the pixel + data is in the sRGB color space. + This function also causes gAMA and + cHRM chunks with the specific values + that are consistent with sRGB to be + written. + + png_set_iCCP(png_ptr, info_ptr, name, compression_type, + profile, proflen); + + name - The profile name. + + compression_type - The compression type; always + PNG_COMPRESSION_TYPE_BASE for PNG 1.0. + You may give NULL to this argument to + ignore it. + + profile - International Color Consortium color + profile data. May contain NULs. + + proflen - length of profile data in bytes. + + png_set_sBIT(png_ptr, info_ptr, sig_bit); + + sig_bit - the number of significant bits for + (PNG_INFO_sBIT) each of the gray, red, + green, and blue channels, whichever are + appropriate for the given color type + (png_color_16) + + png_set_tRNS(png_ptr, info_ptr, trans_alpha, + num_trans, trans_color); + + trans_alpha - array of alpha (transparency) + entries for palette (PNG_INFO_tRNS) + + num_trans - number of transparent entries + (PNG_INFO_tRNS) + + trans_color - graylevel or color sample values + (in order red, green, blue) of the + single transparent color for + non-paletted images (PNG_INFO_tRNS) + + png_set_hIST(png_ptr, info_ptr, hist); + + hist - histogram of palette (array of + png_uint_16) (PNG_INFO_hIST) + + png_set_tIME(png_ptr, info_ptr, mod_time); + + mod_time - time image was last modified + (PNG_VALID_tIME) + + png_set_bKGD(png_ptr, info_ptr, background); + + background - background color (of type + png_color_16p) (PNG_VALID_bKGD) + + png_set_text(png_ptr, info_ptr, text_ptr, num_text); + + text_ptr - array of png_text holding image + comments + + text_ptr[i].compression - type of compression used + on "text" PNG_TEXT_COMPRESSION_NONE + PNG_TEXT_COMPRESSION_zTXt + PNG_ITXT_COMPRESSION_NONE + PNG_ITXT_COMPRESSION_zTXt + text_ptr[i].key - keyword for comment. Must contain + 1-79 characters. + text_ptr[i].text - text comments for current + keyword. Can be NULL or empty. + text_ptr[i].text_length - length of text string, + after decompression, 0 for iTXt + text_ptr[i].itxt_length - length of itxt string, + after decompression, 0 for tEXt/zTXt + text_ptr[i].lang - language of comment (NULL or + empty for unknown). + text_ptr[i].translated_keyword - keyword in UTF-8 (NULL + or empty for unknown). + + Note that the itxt_length, lang, and lang_key + members of the text_ptr structure only exist when the + library is built with iTXt chunk support. Prior to + libpng-1.4.0 the library was built by default without + iTXt support. Also note that when iTXt is supported, + they contain NULL pointers when the "compression" + field contains PNG_TEXT_COMPRESSION_NONE or + PNG_TEXT_COMPRESSION_zTXt. + + num_text - number of comments + + png_set_sPLT(png_ptr, info_ptr, &palette_ptr, + num_spalettes); + + palette_ptr - array of png_sPLT_struct structures + to be added to the list of palettes + in the info structure. + num_spalettes - number of palette structures to be + added. + + png_set_oFFs(png_ptr, info_ptr, offset_x, offset_y, + unit_type); + + offset_x - positive offset from the left + edge of the screen + + offset_y - positive offset from the top + edge of the screen + + unit_type - PNG_OFFSET_PIXEL, PNG_OFFSET_MICROMETER + + png_set_pHYs(png_ptr, info_ptr, res_x, res_y, + unit_type); + + res_x - pixels/unit physical resolution + in x direction + + res_y - pixels/unit physical resolution + in y direction + + unit_type - PNG_RESOLUTION_UNKNOWN, + PNG_RESOLUTION_METER + + png_set_sCAL(png_ptr, info_ptr, unit, width, height) + + unit - physical scale units (an integer) + + width - width of a pixel in physical scale units + + height - height of a pixel in physical scale units + (width and height are doubles) + + png_set_sCAL_s(png_ptr, info_ptr, unit, width, height) + + unit - physical scale units (an integer) + + width - width of a pixel in physical scale units + expressed as a string + + height - height of a pixel in physical scale units + (width and height are strings like "2.54") + + png_set_unknown_chunks(png_ptr, info_ptr, &unknowns, + num_unknowns) + + unknowns - array of png_unknown_chunk + structures holding unknown chunks + unknowns[i].name - name of unknown chunk + unknowns[i].data - data of unknown chunk + unknowns[i].size - size of unknown chunk's data + unknowns[i].location - position to write chunk in file + 0: do not write chunk + PNG_HAVE_IHDR: before PLTE + PNG_HAVE_PLTE: before IDAT + PNG_AFTER_IDAT: after IDAT + +The "location" member is set automatically according to +what part of the output file has already been written. +You can change its value after calling png_set_unknown_chunks() +as demonstrated in pngtest.c. Within each of the "locations", +the chunks are sequenced according to their position in the +structure (that is, the value of "i", which is the order in which +the chunk was either read from the input file or defined with +png_set_unknown_chunks). + +A quick word about text and num_text. text is an array of png_text +structures. num_text is the number of valid structures in the array. +Each png_text structure holds a language code, a keyword, a text value, +and a compression type. + +The compression types have the same valid numbers as the compression +types of the image data. Currently, the only valid number is zero. +However, you can store text either compressed or uncompressed, unlike +images, which always have to be compressed. So if you don't want the +text compressed, set the compression type to PNG_TEXT_COMPRESSION_NONE. +Because tEXt and zTXt chunks don't have a language field, if you +specify PNG_TEXT_COMPRESSION_NONE or PNG_TEXT_COMPRESSION_zTXt +any language code or translated keyword will not be written out. + +Until text gets around a few hundred bytes, it is not worth compressing it. +After the text has been written out to the file, the compression type +is set to PNG_TEXT_COMPRESSION_NONE_WR or PNG_TEXT_COMPRESSION_zTXt_WR, +so that it isn't written out again at the end (in case you are calling +png_write_end() with the same struct). + +The keywords that are given in the PNG Specification are: + + Title Short (one line) title or + caption for image + + Author Name of image's creator + + Description Description of image (possibly long) + + Copyright Copyright notice + + Creation Time Time of original image creation + (usually RFC 1123 format, see below) + + Software Software used to create the image + + Disclaimer Legal disclaimer + + Warning Warning of nature of content + + Source Device used to create the image + + Comment Miscellaneous comment; conversion + from other image format + +The keyword-text pairs work like this. Keywords should be short +simple descriptions of what the comment is about. Some typical +keywords are found in the PNG specification, as is some recommendations +on keywords. You can repeat keywords in a file. You can even write +some text before the image and some after. For example, you may want +to put a description of the image before the image, but leave the +disclaimer until after, so viewers working over modem connections +don't have to wait for the disclaimer to go over the modem before +they start seeing the image. Finally, keywords should be full +words, not abbreviations. Keywords and text are in the ISO 8859-1 +(Latin-1) character set (a superset of regular ASCII) and can not +contain NUL characters, and should not contain control or other +unprintable characters. To make the comments widely readable, stick +with basic ASCII, and avoid machine specific character set extensions +like the IBM-PC character set. The keyword must be present, but +you can leave off the text string on non-compressed pairs. +Compressed pairs must have a text string, as only the text string +is compressed anyway, so the compression would be meaningless. + +PNG supports modification time via the png_time structure. Two +conversion routines are provided, png_convert_from_time_t() for +time_t and png_convert_from_struct_tm() for struct tm. The +time_t routine uses gmtime(). You don't have to use either of +these, but if you wish to fill in the png_time structure directly, +you should provide the time in universal time (GMT) if possible +instead of your local time. Note that the year number is the full +year (e.g. 1998, rather than 98 - PNG is year 2000 compliant!), and +that months start with 1. + +If you want to store the time of the original image creation, you should +use a plain tEXt chunk with the "Creation Time" keyword. This is +necessary because the "creation time" of a PNG image is somewhat vague, +depending on whether you mean the PNG file, the time the image was +created in a non-PNG format, a still photo from which the image was +scanned, or possibly the subject matter itself. In order to facilitate +machine-readable dates, it is recommended that the "Creation Time" +tEXt chunk use RFC 1123 format dates (e.g. "22 May 1997 18:07:10 GMT"), +although this isn't a requirement. Unlike the tIME chunk, the +"Creation Time" tEXt chunk is not expected to be automatically changed +by the software. To facilitate the use of RFC 1123 dates, a function +png_convert_to_rfc1123_buffer(png_ptr, buffer, png_timep) is provided to +convert from PNG time to an RFC 1123 format string. The caller must provide +a writeable buffer of at least 29 bytes. + +Writing unknown chunks + +You can use the png_set_unknown_chunks function to queue up private chunks +for writing. You give it a chunk name, location, raw data, and a size. You +also must use png_set_keep_unknown_chunks() to ensure that libpng will +handle them. That's all there is to it. The chunks will be written by the +next following png_write_info_before_PLTE, png_write_info, or png_write_end +function, depending upon the specified location. Any chunks previously +read into the info structure's unknown-chunk list will also be written out +in a sequence that satisfies the PNG specification's ordering rules. + +Here is an example of writing two private chunks, prVt and miNE: + + #ifdef PNG_WRITE_UNKNOWN_CHUNKS_SUPPORTED + /* Set unknown chunk data */ + png_unknown_chunk unk_chunk[2]; + strcpy((char *) unk_chunk[0].name, "prVt"; + unk_chunk[0].data = (unsigned char *) "PRIVATE DATA"; + unk_chunk[0].size = strlen(unk_chunk[0].data)+1; + unk_chunk[0].location = PNG_HAVE_IHDR; + strcpy((char *) unk_chunk[1].name, "miNE"; + unk_chunk[1].data = (unsigned char *) "MY CHUNK DATA"; + unk_chunk[1].size = strlen(unk_chunk[0].data)+1; + unk_chunk[1].location = PNG_AFTER_IDAT; + png_set_unknown_chunks(write_ptr, write_info_ptr, + unk_chunk, 2); + /* Needed because miNE is not safe-to-copy */ + png_set_keep_unknown_chunks(png, PNG_HANDLE_CHUNK_ALWAYS, + (png_bytep) "miNE", 1); + # if PNG_LIBPNG_VER < 10600 + /* Deal with unknown chunk location bug in 1.5.x and earlier */ + png_set_unknown_chunk_location(png, info, 0, PNG_HAVE_IHDR); + png_set_unknown_chunk_location(png, info, 1, PNG_AFTER_IDAT); + # endif + # if PNG_LIBPNG_VER < 10500 + /* PNG_AFTER_IDAT writes two copies of the chunk prior to libpng-1.5.0, + * one before IDAT and another after IDAT, so don't use it; only use + * PNG_HAVE_IHDR location. This call resets the location previously + * set by assignment and png_set_unknown_chunk_location() for chunk 1. + */ + png_set_unknown_chunk_location(png, info, 1, PNG_HAVE_IHDR); + # endif + #endif + +The high-level write interface + +At this point there are two ways to proceed; through the high-level +write interface, or through a sequence of low-level write operations. +You can use the high-level interface if your image data is present +in the info structure. All defined output +transformations are permitted, enabled by the following masks. + + PNG_TRANSFORM_IDENTITY No transformation + PNG_TRANSFORM_PACKING Pack 1, 2 and 4-bit samples + PNG_TRANSFORM_PACKSWAP Change order of packed + pixels to LSB first + PNG_TRANSFORM_INVERT_MONO Invert monochrome images + PNG_TRANSFORM_SHIFT Normalize pixels to the + sBIT depth + PNG_TRANSFORM_BGR Flip RGB to BGR, RGBA + to BGRA + PNG_TRANSFORM_SWAP_ALPHA Flip RGBA to ARGB or GA + to AG + PNG_TRANSFORM_INVERT_ALPHA Change alpha from opacity + to transparency + PNG_TRANSFORM_SWAP_ENDIAN Byte-swap 16-bit samples + PNG_TRANSFORM_STRIP_FILLER Strip out filler + bytes (deprecated). + PNG_TRANSFORM_STRIP_FILLER_BEFORE Strip out leading + filler bytes + PNG_TRANSFORM_STRIP_FILLER_AFTER Strip out trailing + filler bytes + +If you have valid image data in the info structure (you can use +png_set_rows() to put image data in the info structure), simply do this: + + png_write_png(png_ptr, info_ptr, png_transforms, NULL) + +where png_transforms is an integer containing the bitwise OR of some set of +transformation flags. This call is equivalent to png_write_info(), +followed the set of transformations indicated by the transform mask, +then png_write_image(), and finally png_write_end(). + +(The final parameter of this call is not yet used. Someday it might point +to transformation parameters required by some future output transform.) + +You must use png_transforms and not call any png_set_transform() functions +when you use png_write_png(). + +The low-level write interface + +If you are going the low-level route instead, you are now ready to +write all the file information up to the actual image data. You do +this with a call to png_write_info(). + + png_write_info(png_ptr, info_ptr); + +Note that there is one transformation you may need to do before +png_write_info(). In PNG files, the alpha channel in an image is the +level of opacity. If your data is supplied as a level of transparency, +you can invert the alpha channel before you write it, so that 0 is +fully transparent and 255 (in 8-bit or paletted images) or 65535 +(in 16-bit images) is fully opaque, with + + png_set_invert_alpha(png_ptr); + +This must appear before png_write_info() instead of later with the +other transformations because in the case of paletted images the tRNS +chunk data has to be inverted before the tRNS chunk is written. If +your image is not a paletted image, the tRNS data (which in such cases +represents a single color to be rendered as transparent) won't need to +be changed, and you can safely do this transformation after your +png_write_info() call. + +If you need to write a private chunk that you want to appear before +the PLTE chunk when PLTE is present, you can write the PNG info in +two steps, and insert code to write your own chunk between them: + + png_write_info_before_PLTE(png_ptr, info_ptr); + png_set_unknown_chunks(png_ptr, info_ptr, ...); + png_write_info(png_ptr, info_ptr); + +After you've written the file information, you can set up the library +to handle any special transformations of the image data. The various +ways to transform the data will be described in the order that they +should occur. This is important, as some of these change the color +type and/or bit depth of the data, and some others only work on +certain color types and bit depths. Even though each transformation +checks to see if it has data that it can do something with, you should +make sure to only enable a transformation if it will be valid for the +data. For example, don't swap red and blue on grayscale data. + +PNG files store RGB pixels packed into 3 or 6 bytes. This code tells +the library to strip input data that has 4 or 8 bytes per pixel down +to 3 or 6 bytes (or strip 2 or 4-byte grayscale+filler data to 1 or 2 +bytes per pixel). + + png_set_filler(png_ptr, 0, PNG_FILLER_BEFORE); + +where the 0 is unused, and the location is either PNG_FILLER_BEFORE or +PNG_FILLER_AFTER, depending upon whether the filler byte in the pixel +is stored XRGB or RGBX. + +PNG files pack pixels of bit depths 1, 2, and 4 into bytes as small as +they can, resulting in, for example, 8 pixels per byte for 1 bit files. +If the data is supplied at 1 pixel per byte, use this code, which will +correctly pack the pixels into a single byte: + + png_set_packing(png_ptr); + +PNG files reduce possible bit depths to 1, 2, 4, 8, and 16. If your +data is of another bit depth, you can write an sBIT chunk into the +file so that decoders can recover the original data if desired. + + /* Set the true bit depth of the image data */ + if (color_type & PNG_COLOR_MASK_COLOR) + { + sig_bit.red = true_bit_depth; + sig_bit.green = true_bit_depth; + sig_bit.blue = true_bit_depth; + } + + else + { + sig_bit.gray = true_bit_depth; + } + + if (color_type & PNG_COLOR_MASK_ALPHA) + { + sig_bit.alpha = true_bit_depth; + } + + png_set_sBIT(png_ptr, info_ptr, &sig_bit); + +If the data is stored in the row buffer in a bit depth other than +one supported by PNG (e.g. 3 bit data in the range 0-7 for a 4-bit PNG), +this will scale the values to appear to be the correct bit depth as +is required by PNG. + + png_set_shift(png_ptr, &sig_bit); + +PNG files store 16-bit pixels in network byte order (big-endian, +ie. most significant bits first). This code would be used if they are +supplied the other way (little-endian, i.e. least significant bits +first, the way PCs store them): + + if (bit_depth > 8) + png_set_swap(png_ptr); + +If you are using packed-pixel images (1, 2, or 4 bits/pixel), and you +need to change the order the pixels are packed into bytes, you can use: + + if (bit_depth < 8) + png_set_packswap(png_ptr); + +PNG files store 3 color pixels in red, green, blue order. This code +would be used if they are supplied as blue, green, red: + + png_set_bgr(png_ptr); + +PNG files describe monochrome as black being zero and white being +one. This code would be used if the pixels are supplied with this reversed +(black being one and white being zero): + + png_set_invert_mono(png_ptr); + +Finally, you can write your own transformation function if none of +the existing ones meets your needs. This is done by setting a callback +with + + png_set_write_user_transform_fn(png_ptr, + write_transform_fn); + +You must supply the function + + void write_transform_fn(png_structp png_ptr, png_row_infop + row_info, png_bytep data) + +See pngtest.c for a working example. Your function will be called +before any of the other transformations are processed. If supported +libpng also supplies an information routine that may be called from +your callback: + + png_get_current_row_number(png_ptr); + png_get_current_pass_number(png_ptr); + +This returns the current row passed to the transform. With interlaced +images the value returned is the row in the input sub-image image. Use +PNG_ROW_FROM_PASS_ROW(row, pass) and PNG_COL_FROM_PASS_COL(col, pass) to +find the output pixel (x,y) given an interlaced sub-image pixel (row,col,pass). + +The discussion of interlace handling above contains more information on how to +use these values. + +You can also set up a pointer to a user structure for use by your +callback function. + + png_set_user_transform_info(png_ptr, user_ptr, 0, 0); + +The user_channels and user_depth parameters of this function are ignored +when writing; you can set them to zero as shown. + +You can retrieve the pointer via the function png_get_user_transform_ptr(). +For example: + + voidp write_user_transform_ptr = + png_get_user_transform_ptr(png_ptr); + +It is possible to have libpng flush any pending output, either manually, +or automatically after a certain number of lines have been written. To +flush the output stream a single time call: + + png_write_flush(png_ptr); + +and to have libpng flush the output stream periodically after a certain +number of scanlines have been written, call: + + png_set_flush(png_ptr, nrows); + +Note that the distance between rows is from the last time png_write_flush() +was called, or the first row of the image if it has never been called. +So if you write 50 lines, and then png_set_flush 25, it will flush the +output on the next scanline, and every 25 lines thereafter, unless +png_write_flush() is called before 25 more lines have been written. +If nrows is too small (less than about 10 lines for a 640 pixel wide +RGB image) the image compression may decrease noticeably (although this +may be acceptable for real-time applications). Infrequent flushing will +only degrade the compression performance by a few percent over images +that do not use flushing. + +Writing the image data + +That's it for the transformations. Now you can write the image data. +The simplest way to do this is in one function call. If you have the +whole image in memory, you can just call png_write_image() and libpng +will write the image. You will need to pass in an array of pointers to +each row. This function automatically handles interlacing, so you don't +need to call png_set_interlace_handling() or call this function multiple +times, or any of that other stuff necessary with png_write_rows(). + + png_write_image(png_ptr, row_pointers); + +where row_pointers is: + + png_byte *row_pointers[height]; + +You can point to void or char or whatever you use for pixels. + +If you don't want to write the whole image at once, you can +use png_write_rows() instead. If the file is not interlaced, +this is simple: + + png_write_rows(png_ptr, row_pointers, + number_of_rows); + +row_pointers is the same as in the png_write_image() call. + +If you are just writing one row at a time, you can do this with +a single row_pointer instead of an array of row_pointers: + + png_bytep row_pointer = row; + + png_write_row(png_ptr, row_pointer); + +When the file is interlaced, things can get a good deal more complicated. +The only currently (as of the PNG Specification version 1.2, dated July +1999) defined interlacing scheme for PNG files is the "Adam7" interlace +scheme, that breaks down an image into seven smaller images of varying +size. libpng will build these images for you, or you can do them +yourself. If you want to build them yourself, see the PNG specification +for details of which pixels to write when. + +If you don't want libpng to handle the interlacing details, just +use png_set_interlace_handling() and call png_write_rows() the +correct number of times to write all the sub-images +(png_set_interlace_handling() returns the number of sub-images.) + +If you want libpng to build the sub-images, call this before you start +writing any rows: + + number_of_passes = png_set_interlace_handling(png_ptr); + +This will return the number of passes needed. Currently, this is seven, +but may change if another interlace type is added. + +Then write the complete image number_of_passes times. + + png_write_rows(png_ptr, row_pointers, number_of_rows); + +Think carefully before you write an interlaced image. Typically code that +reads such images reads all the image data into memory, uncompressed, before +doing any processing. Only code that can display an image on the fly can +take advantage of the interlacing and even then the image has to be exactly +the correct size for the output device, because scaling an image requires +adjacent pixels and these are not available until all the passes have been +read. + +If you do write an interlaced image you will hardly ever need to handle +the interlacing yourself. Call png_set_interlace_handling() and use the +approach described above. + +The only time it is conceivable that you will really need to write an +interlaced image pass-by-pass is when you have read one pass by pass and +made some pixel-by-pixel transformation to it, as described in the read +code above. In this case use the PNG_PASS_ROWS and PNG_PASS_COLS macros +to determine the size of each sub-image in turn and simply write the rows +you obtained from the read code. + +Finishing a sequential write + +After you are finished writing the image, you should finish writing +the file. If you are interested in writing comments or time, you should +pass an appropriately filled png_info pointer. If you are not interested, +you can pass NULL. + + png_write_end(png_ptr, info_ptr); + +When you are done, you can free all memory used by libpng like this: + + png_destroy_write_struct(&png_ptr, &info_ptr); + +It is also possible to individually free the info_ptr members that +point to libpng-allocated storage with the following function: + + png_free_data(png_ptr, info_ptr, mask, seq) + + mask - identifies data to be freed, a mask + containing the bitwise OR of one or + more of + PNG_FREE_PLTE, PNG_FREE_TRNS, + PNG_FREE_HIST, PNG_FREE_ICCP, + PNG_FREE_PCAL, PNG_FREE_ROWS, + PNG_FREE_SCAL, PNG_FREE_SPLT, + PNG_FREE_TEXT, PNG_FREE_UNKN, + or simply PNG_FREE_ALL + + seq - sequence number of item to be freed + (-1 for all items) + +This function may be safely called when the relevant storage has +already been freed, or has not yet been allocated, or was allocated +by the user and not by libpng, and will in those cases do nothing. +The "seq" parameter is ignored if only one item of the selected data +type, such as PLTE, is allowed. If "seq" is not -1, and multiple items +are allowed for the data type identified in the mask, such as text or +sPLT, only the n'th item in the structure is freed, where n is "seq". + +If you allocated data such as a palette that you passed in to libpng +with png_set_*, you must not free it until just before the call to +png_destroy_write_struct(). + +The default behavior is only to free data that was allocated internally +by libpng. This can be changed, so that libpng will not free the data, +or so that it will free data that was allocated by the user with png_malloc() +or png_calloc() and passed in via a png_set_*() function, with + + png_data_freer(png_ptr, info_ptr, freer, mask) + + freer - one of + PNG_DESTROY_WILL_FREE_DATA + PNG_SET_WILL_FREE_DATA + PNG_USER_WILL_FREE_DATA + + mask - which data elements are affected + same choices as in png_free_data() + +For example, to transfer responsibility for some data from a read structure +to a write structure, you could use + + png_data_freer(read_ptr, read_info_ptr, + PNG_USER_WILL_FREE_DATA, + PNG_FREE_PLTE|PNG_FREE_tRNS|PNG_FREE_hIST) + + png_data_freer(write_ptr, write_info_ptr, + PNG_DESTROY_WILL_FREE_DATA, + PNG_FREE_PLTE|PNG_FREE_tRNS|PNG_FREE_hIST) + +thereby briefly reassigning responsibility for freeing to the user but +immediately afterwards reassigning it once more to the write_destroy +function. Having done this, it would then be safe to destroy the read +structure and continue to use the PLTE, tRNS, and hIST data in the write +structure. + +This function only affects data that has already been allocated. +You can call this function before calling after the png_set_*() functions +to control whether the user or png_destroy_*() is supposed to free the data. +When the user assumes responsibility for libpng-allocated data, the +application must use +png_free() to free it, and when the user transfers responsibility to libpng +for data that the user has allocated, the user must have used png_malloc() +or png_calloc() to allocate it. + +If you allocated text_ptr.text, text_ptr.lang, and text_ptr.translated_keyword +separately, do not transfer responsibility for freeing text_ptr to libpng, +because when libpng fills a png_text structure it combines these members with +the key member, and png_free_data() will free only text_ptr.key. Similarly, +if you transfer responsibility for free'ing text_ptr from libpng to your +application, your application must not separately free those members. +For a more compact example of writing a PNG image, see the file example.c. + +V. Simplified API + +The simplified API, which became available in libpng-1.6.0, hides the details +of both libpng and the PNG file format itself. +It allows PNG files to be read into a very limited number of +in-memory bitmap formats or to be written from the same formats. If these +formats do not accommodate your needs then you can, and should, use the more +sophisticated APIs above - these support a wide variety of in-memory formats +and a wide variety of sophisticated transformations to those formats as well +as a wide variety of APIs to manipulate ancilliary information. + +To read a PNG file using the simplified API: + + 1) Declare a 'png_image' structure (see below) on the + stack and memset() it to all zero. + + 2) Call the appropriate png_image_begin_read... function. + + 3) Set the png_image 'format' member to the required + format and allocate a buffer for the image. + + 4) Call png_image_finish_read to read the image into + your buffer. + +There are no restrictions on the format of the PNG input itself; all valid +color types, bit depths, and interlace methods are acceptable, and the +input image is transformed as necessary to the requested in-memory format +during the png_image_finish_read() step. + +To write a PNG file using the simplified API: + + 1) Declare a 'png_image' structure on the stack and memset() + it to all zero. + + 2) Initialize the members of the structure that describe the + image, setting the 'format' member to the format of the + image in memory. + + 3) Call the appropriate png_image_write... function with a + pointer to the image to write the PNG data. + +png_image is a structure that describes the in-memory format of an image +when it is being read or define the in-memory format of an image that you +need to write. The "png_image" structure contains the following members: + + png_uint_32 version Set to PNG_IMAGE_VERSION + png_uint_32 width Image width in pixels (columns) + png_uint_32 height Image height in pixels (rows) + png_uint_32 format Image format as defined below + png_uint_32 flags A bit mask containing informational flags + png_controlp opaque Initialize to NULL, free with png_image_free + png_uint_32 colormap_entries; Number of entries in the color-map + png_uint_32 warning_or_error; + char message[64]; + +In the event of an error or warning the following field warning_or_error +field will be set to a non-zero value and the 'message' field will contain +a '\0' terminated string with the libpng error or warning message. If both +warnings and an error were encountered, only the error is recorded. If there +are multiple warnings, only the first one is recorded. + +The upper 30 bits of this value are reserved; the low two bits contain +a two bit code such that a value more than 1 indicates a failure in the API +just called: + + 0 - no warning or error + 1 - warning + 2 - error + 3 - error preceded by warning + +The pixels (samples) of the image have one to four channels whose components +have original values in the range 0 to 1.0: + + 1: A single gray or luminance channel (G). + 2: A gray/luminance channel and an alpha channel (GA). + 3: Three red, green, blue color channels (RGB). + 4: Three color channels and an alpha channel (RGBA). + +The channels are encoded in one of two ways: + + a) As a small integer, value 0..255, contained in a single byte. For the +alpha channel the original value is simply value/255. For the color or +luminance channels the value is encoded according to the sRGB specification +and matches the 8-bit format expected by typical display devices. + +The color/gray channels are not scaled (pre-multiplied) by the alpha +channel and are suitable for passing to color management software. + + b) As a value in the range 0..65535, contained in a 2-byte integer, in +the native byte order of the platform on which the application is running. +All channels can be converted to the original value by dividing by 65535; all +channels are linear. Color channels use the RGB encoding (RGB end-points) of +the sRGB specification. This encoding is identified by the +PNG_FORMAT_FLAG_LINEAR flag below. + +When an alpha channel is present it is expected to denote pixel coverage +of the color or luminance channels and is returned as an associated alpha +channel: the color/gray channels are scaled (pre-multiplied) by the alpha +value. + +When a color-mapped image is used as a result of calling +png_image_read_colormap or png_image_write_colormap the channels are encoded +in the color-map and the descriptions above apply to the color-map entries. +The image data is encoded as small integers, value 0..255, that index the +entries in the color-map. One integer (one byte) is stored for each pixel. + +PNG_FORMAT_* + +The #defines to be used in png_image::format. Each #define identifies a +particular layout of channel data and, if present, alpha values. There are +separate defines for each of the two channel encodings. + +A format is built up using single bit flag values. Not all combinations are +valid: use the bit flag values below for testing a format returned by the +read APIs, but set formats from the derived values. + +When reading or writing color-mapped images the format should be set to the +format of the entries in the color-map then png_image_{read,write}_colormap +called to read or write the color-map and set the format correctly for the +image data. Do not set the PNG_FORMAT_FLAG_COLORMAP bit directly! + +NOTE: libpng can be built with particular features disabled, if you see +compiler errors because the definition of one of the following flags has been +compiled out it is because libpng does not have the required support. It is +possible, however, for the libpng configuration to enable the format on just +read or just write; in that case you may see an error at run time. You can +guard against this by checking for the definition of: + + PNG_SIMPLIFIED_{READ,WRITE}_{BGR,AFIRST}_SUPPORTED + + PNG_FORMAT_FLAG_ALPHA 0x01 format with an alpha channel + PNG_FORMAT_FLAG_COLOR 0x02 color format: otherwise grayscale + PNG_FORMAT_FLAG_LINEAR 0x04 png_uint_16 channels else png_byte + PNG_FORMAT_FLAG_COLORMAP 0x08 libpng use only + PNG_FORMAT_FLAG_BGR 0x10 BGR colors, else order is RGB + PNG_FORMAT_FLAG_AFIRST 0x20 alpha channel comes first + +Supported formats are as follows. Future versions of libpng may support more +formats; for compatibility with older versions simply check if the format +macro is defined using #ifdef. These defines describe the in-memory layout +of the components of the pixels of the image. + +First the single byte formats: + + PNG_FORMAT_GRAY 0 + PNG_FORMAT_GA PNG_FORMAT_FLAG_ALPHA + PNG_FORMAT_AG (PNG_FORMAT_GA|PNG_FORMAT_FLAG_AFIRST) + PNG_FORMAT_RGB PNG_FORMAT_FLAG_COLOR + PNG_FORMAT_BGR (PNG_FORMAT_FLAG_COLOR|PNG_FORMAT_FLAG_BGR) + PNG_FORMAT_RGBA (PNG_FORMAT_RGB|PNG_FORMAT_FLAG_ALPHA) + PNG_FORMAT_ARGB (PNG_FORMAT_RGBA|PNG_FORMAT_FLAG_AFIRST) + PNG_FORMAT_BGRA (PNG_FORMAT_BGR|PNG_FORMAT_FLAG_ALPHA) + PNG_FORMAT_ABGR (PNG_FORMAT_BGRA|PNG_FORMAT_FLAG_AFIRST) + +Then the linear 2-byte formats. When naming these "Y" is used to +indicate a luminance (gray) channel. The component order within the pixel +is always the same - there is no provision for swapping the order of the +components in the linear format. The components are 16-bit integers in +the native byte order for your platform, and there is no provision for +swapping the bytes to a different endian condition. + + PNG_FORMAT_LINEAR_Y PNG_FORMAT_FLAG_LINEAR + PNG_FORMAT_LINEAR_Y_ALPHA + (PNG_FORMAT_FLAG_LINEAR|PNG_FORMAT_FLAG_ALPHA) + PNG_FORMAT_LINEAR_RGB + (PNG_FORMAT_FLAG_LINEAR|PNG_FORMAT_FLAG_COLOR) + PNG_FORMAT_LINEAR_RGB_ALPHA + (PNG_FORMAT_FLAG_LINEAR|PNG_FORMAT_FLAG_COLOR| + PNG_FORMAT_FLAG_ALPHA) + +Color-mapped formats are obtained by calling png_image_{read,write}_colormap, +as appropriate after setting png_image::format to the format of the color-map +to be read or written. Applications may check the value of +PNG_FORMAT_FLAG_COLORMAP to see if they have called the colormap API. The +format of the color-map may be extracted using the following macro. + + PNG_FORMAT_OF_COLORMAP(fmt) ((fmt) & ~PNG_FORMAT_FLAG_COLORMAP) + +PNG_IMAGE macros + +These are convenience macros to derive information from a png_image +structure. The PNG_IMAGE_SAMPLE_ macros return values appropriate to the +actual image sample values - either the entries in the color-map or the +pixels in the image. The PNG_IMAGE_PIXEL_ macros return corresponding values +for the pixels and will always return 1 after a call to +png_image_{read,write}_colormap. The remaining macros return information +about the rows in the image and the complete image. + +NOTE: All the macros that take a png_image::format parameter are compile time +constants if the format parameter is, itself, a constant. Therefore these +macros can be used in array declarations and case labels where required. +Similarly the macros are also pre-processor constants (sizeof is not used) so +they can be used in #if tests. + +First the information about the samples. + + PNG_IMAGE_SAMPLE_CHANNELS(fmt) + Returns the total number of channels in a given format: 1..4 + + PNG_IMAGE_SAMPLE_COMPONENT_SIZE(fmt) + Returns the size in bytes of a single component of a pixel or color-map + entry (as appropriate) in the image. + + PNG_IMAGE_SAMPLE_SIZE(fmt) + This is the size of the sample data for one sample. If the image is + color-mapped it is the size of one color-map entry (and image pixels are + one byte in size), otherwise it is the size of one image pixel. + + PNG_IMAGE_COLORMAP_SIZE(fmt) + The size of the color-map required by the format; this is the size of the + color-map buffer passed to the png_image_{read,write}_colormap APIs, it is + a fixed number determined by the format so can easily be allocated on the + stack if necessary. + +#define PNG_IMAGE_MAXIMUM_COLORMAP_COMPONENTS(fmt)\ + (PNG_IMAGE_SAMPLE_CHANNELS(fmt) * 256) + /* The maximum size of the color-map required by the format expressed in a + * count of components. This can be used to compile-time allocate a + * color-map: + * + * png_uint_16 colormap[PNG_IMAGE_MAXIMUM_COLORMAP_COMPONENTS(linear_fmt)]; + * + * png_byte colormap[PNG_IMAGE_MAXIMUM_COLORMAP_COMPONENTS(sRGB_fmt)]; + * + * Alternatively, use the PNG_IMAGE_COLORMAP_SIZE macro below to use the + * information from one of the png_image_begin_read_ APIs and dynamically + * allocate the required memory. + */ + + +Corresponding information about the pixels + + PNG_IMAGE_PIXEL_(test,fmt) + + PNG_IMAGE_PIXEL_CHANNELS(fmt) + The number of separate channels (components) in a pixel; 1 for a + color-mapped image. + + PNG_IMAGE_PIXEL_COMPONENT_SIZE(fmt)\ + The size, in bytes, of each component in a pixel; 1 for a color-mapped + image. + + PNG_IMAGE_PIXEL_SIZE(fmt) + The size, in bytes, of a complete pixel; 1 for a color-mapped image. + +Information about the whole row, or whole image + + PNG_IMAGE_ROW_STRIDE(image) + Returns the total number of components in a single row of the image; this + is the minimum 'row stride', the minimum count of components between each + row. For a color-mapped image this is the minimum number of bytes in a + row. + + If you need the stride measured in bytes, row_stride_bytes is + PNG_IMAGE_ROW_STRIDE(image) * PNG_IMAGE_PIXEL_COMPONENT_SIZE(fmt) + plus any padding bytes that your application might need, for example + to start the next row on a 4-byte boundary. + + PNG_IMAGE_BUFFER_SIZE(image, row_stride) + Returns the size, in bytes, of an image buffer given a png_image and a row + stride - the number of components to leave space for in each row. This + macro takes care of multiplying row_stride by PNG_IMAGE_PIXEL_COMONENT_SIZE + when the image has 2-byte components. + + PNG_IMAGE_FLAG_COLORSPACE_NOT_sRGB == 0x01 + This indicates the the RGB values of the in-memory bitmap do not + correspond to the red, green and blue end-points defined by sRGB. + + PNG_IMAGE_FLAG_COLORMAP == 0x02 + The PNG is color-mapped. If this flag is set png_image_read_colormap + can be used without further loss of image information. If it is not set + png_image_read_colormap will cause significant loss if the image has any + +READ APIs + + The png_image passed to the read APIs must have been initialized by setting + the png_controlp field 'opaque' to NULL (or, better, memset the whole thing.) + + int png_image_begin_read_from_file( png_imagep image, + const char *file_name) + + The named file is opened for read and the image header + is filled in from the PNG header in the file. + + int png_image_begin_read_from_stdio (png_imagep image, + FILE* file) + + The PNG header is read from the stdio FILE object. + + int png_image_begin_read_from_memory(png_imagep image, + png_const_voidp memory, png_size_t size) + + The PNG header is read from the given memory buffer. + + int png_image_finish_read(png_imagep image, + png_colorp background, void *buffer, + png_int_32 row_stride, void *colormap)); + + Finish reading the image into the supplied buffer and + clean up the png_image structure. + + row_stride is the step, in png_byte or png_uint_16 units + as appropriate, between adjacent rows. A positive stride + indicates that the top-most row is first in the buffer - + the normal top-down arrangement. A negative stride + indicates that the bottom-most row is first in the buffer. + + background need only be supplied if an alpha channel must + be removed from a png_byte format and the removal is to be + done by compositing on a solid color; otherwise it may be + NULL and any composition will be done directly onto the + buffer. The value is an sRGB color to use for the + background, for grayscale output the green channel is used. + + For linear output removing the alpha channel is always done + by compositing on black. + + void png_image_free(png_imagep image) + + Free any data allocated by libpng in image->opaque, + setting the pointer to NULL. May be called at any time + after the structure is initialized. + +When the simplified API needs to convert between sRGB and linear colorspaces, +the actual sRGB transfer curve defined in the sRGB specification (see the +article at http://en.wikipedia.org/wiki/SRGB) is used, not the gamma=1/2.2 +approximation used elsewhere in libpng. + +WRITE APIS + +For write you must initialize a png_image structure to describe the image to +be written: + + version: must be set to PNG_IMAGE_VERSION + opaque: must be initialized to NULL + width: image width in pixels + height: image height in rows + format: the format of the data you wish to write + flags: set to 0 unless one of the defined flags applies; set + PNG_IMAGE_FLAG_COLORSPACE_NOT_sRGB for color format images + where the RGB values do not correspond to the colors in sRGB. + colormap_entries: set to the number of entries in the color-map (0 to 256) + + int png_image_write_to_file, (png_imagep image, + const char *file, int convert_to_8bit, const void *buffer, + png_int_32 row_stride, const void *colormap)); + + Write the image to the named file. + + int png_image_write_to_stdio(png_imagep image, FILE *file, + int convert_to_8_bit, const void *buffer, + png_int_32 row_stride, const void *colormap) + + Write the image to the given (FILE*). + +With all write APIs if image is in one of the linear formats with +(png_uint_16) data then setting convert_to_8_bit will cause the output to be +a (png_byte) PNG gamma encoded according to the sRGB specification, otherwise +a 16-bit linear encoded PNG file is written. + +With all APIs row_stride is handled as in the read APIs - it is the spacing +from one row to the next in component sized units (float) and if negative +indicates a bottom-up row layout in the buffer. + +Note that the write API does not support interlacing, sub-8-bit pixels, +and indexed (paletted) images. + +VI. Modifying/Customizing libpng + +There are two issues here. The first is changing how libpng does +standard things like memory allocation, input/output, and error handling. +The second deals with more complicated things like adding new chunks, +adding new transformations, and generally changing how libpng works. +Both of those are compile-time issues; that is, they are generally +determined at the time the code is written, and there is rarely a need +to provide the user with a means of changing them. + +Memory allocation, input/output, and error handling + +All of the memory allocation, input/output, and error handling in libpng +goes through callbacks that are user-settable. The default routines are +in pngmem.c, pngrio.c, pngwio.c, and pngerror.c, respectively. To change +these functions, call the appropriate png_set_*_fn() function. + +Memory allocation is done through the functions png_malloc(), png_calloc(), +and png_free(). The png_malloc() and png_free() functions currently just +call the standard C functions and png_calloc() calls png_malloc() and then +clears the newly allocated memory to zero; note that png_calloc(png_ptr, size) +is not the same as the calloc(number, size) function provided by stdlib.h. +There is limited support for certain systems with segmented memory +architectures and the types of pointers declared by png.h match this; you +will have to use appropriate pointers in your application. If you prefer +to use a different method of allocating and freeing data, you can use +png_create_read_struct_2() or png_create_write_struct_2() to register your +own functions as described above. These functions also provide a void +pointer that can be retrieved via + + mem_ptr=png_get_mem_ptr(png_ptr); + +Your replacement memory functions must have prototypes as follows: + + png_voidp malloc_fn(png_structp png_ptr, + png_alloc_size_t size); + + void free_fn(png_structp png_ptr, png_voidp ptr); + +Your malloc_fn() must return NULL in case of failure. The png_malloc() +function will normally call png_error() if it receives a NULL from the +system memory allocator or from your replacement malloc_fn(). + +Your free_fn() will never be called with a NULL ptr, since libpng's +png_free() checks for NULL before calling free_fn(). + +Input/Output in libpng is done through png_read() and png_write(), +which currently just call fread() and fwrite(). The FILE * is stored in +png_struct and is initialized via png_init_io(). If you wish to change +the method of I/O, the library supplies callbacks that you can set +through the function png_set_read_fn() and png_set_write_fn() at run +time, instead of calling the png_init_io() function. These functions +also provide a void pointer that can be retrieved via the function +png_get_io_ptr(). For example: + + png_set_read_fn(png_structp read_ptr, + voidp read_io_ptr, png_rw_ptr read_data_fn) + + png_set_write_fn(png_structp write_ptr, + voidp write_io_ptr, png_rw_ptr write_data_fn, + png_flush_ptr output_flush_fn); + + voidp read_io_ptr = png_get_io_ptr(read_ptr); + voidp write_io_ptr = png_get_io_ptr(write_ptr); + +The replacement I/O functions must have prototypes as follows: + + void user_read_data(png_structp png_ptr, + png_bytep data, png_size_t length); + + void user_write_data(png_structp png_ptr, + png_bytep data, png_size_t length); + + void user_flush_data(png_structp png_ptr); + +The user_read_data() function is responsible for detecting and +handling end-of-data errors. + +Supplying NULL for the read, write, or flush functions sets them back +to using the default C stream functions, which expect the io_ptr to +point to a standard *FILE structure. It is probably a mistake +to use NULL for one of write_data_fn and output_flush_fn but not both +of them, unless you have built libpng with PNG_NO_WRITE_FLUSH defined. +It is an error to read from a write stream, and vice versa. + +Error handling in libpng is done through png_error() and png_warning(). +Errors handled through png_error() are fatal, meaning that png_error() +should never return to its caller. Currently, this is handled via +setjmp() and longjmp() (unless you have compiled libpng with +PNG_NO_SETJMP, in which case it is handled via PNG_ABORT()), +but you could change this to do things like exit() if you should wish, +as long as your function does not return. + +On non-fatal errors, png_warning() is called +to print a warning message, and then control returns to the calling code. +By default png_error() and png_warning() print a message on stderr via +fprintf() unless the library is compiled with PNG_NO_CONSOLE_IO defined +(because you don't want the messages) or PNG_NO_STDIO defined (because +fprintf() isn't available). If you wish to change the behavior of the error +functions, you will need to set up your own message callbacks. These +functions are normally supplied at the time that the png_struct is created. +It is also possible to redirect errors and warnings to your own replacement +functions after png_create_*_struct() has been called by calling: + + png_set_error_fn(png_structp png_ptr, + png_voidp error_ptr, png_error_ptr error_fn, + png_error_ptr warning_fn); + + png_voidp error_ptr = png_get_error_ptr(png_ptr); + +If NULL is supplied for either error_fn or warning_fn, then the libpng +default function will be used, calling fprintf() and/or longjmp() if a +problem is encountered. The replacement error functions should have +parameters as follows: + + void user_error_fn(png_structp png_ptr, + png_const_charp error_msg); + + void user_warning_fn(png_structp png_ptr, + png_const_charp warning_msg); + +The motivation behind using setjmp() and longjmp() is the C++ throw and +catch exception handling methods. This makes the code much easier to write, +as there is no need to check every return code of every function call. +However, there are some uncertainties about the status of local variables +after a longjmp, so the user may want to be careful about doing anything +after setjmp returns non-zero besides returning itself. Consult your +compiler documentation for more details. For an alternative approach, you +may wish to use the "cexcept" facility (see http://cexcept.sourceforge.net), +which is illustrated in pngvalid.c and in contrib/visupng. + +Beginning in libpng-1.4.0, the png_set_benign_errors() API became available. +You can use this to handle certain errors (normally handled as errors) +as warnings. + + png_set_benign_errors (png_ptr, int allowed); + + allowed: 0: treat png_benign_error() as an error. + 1: treat png_benign_error() as a warning. + +As of libpng-1.6.0, the default condition is to treat benign errors as +warnings while reading and as errors while writing. + +Custom chunks + +If you need to read or write custom chunks, you may need to get deeper +into the libpng code. The library now has mechanisms for storing +and writing chunks of unknown type; you can even declare callbacks +for custom chunks. However, this may not be good enough if the +library code itself needs to know about interactions between your +chunk and existing `intrinsic' chunks. + +If you need to write a new intrinsic chunk, first read the PNG +specification. Acquire a first level of understanding of how it works. +Pay particular attention to the sections that describe chunk names, +and look at how other chunks were designed, so you can do things +similarly. Second, check out the sections of libpng that read and +write chunks. Try to find a chunk that is similar to yours and use +it as a template. More details can be found in the comments inside +the code. It is best to handle private or unknown chunks in a generic method, +via callback functions, instead of by modifying libpng functions. This +is illustrated in pngtest.c, which uses a callback function to handle a +private "vpAg" chunk and the new "sTER" chunk, which are both unknown to +libpng. + +If you wish to write your own transformation for the data, look through +the part of the code that does the transformations, and check out some of +the simpler ones to get an idea of how they work. Try to find a similar +transformation to the one you want to add and copy off of it. More details +can be found in the comments inside the code itself. + +Configuring for gui/windowing platforms: + +You will need to write new error and warning functions that use the GUI +interface, as described previously, and set them to be the error and +warning functions at the time that png_create_*_struct() is called, +in order to have them available during the structure initialization. +They can be changed later via png_set_error_fn(). On some compilers, +you may also have to change the memory allocators (png_malloc, etc.). + +Configuring zlib: + +There are special functions to configure the compression. Perhaps the +most useful one changes the compression level, which currently uses +input compression values in the range 0 - 9. The library normally +uses the default compression level (Z_DEFAULT_COMPRESSION = 6). Tests +have shown that for a large majority of images, compression values in +the range 3-6 compress nearly as well as higher levels, and do so much +faster. For online applications it may be desirable to have maximum speed +(Z_BEST_SPEED = 1). With versions of zlib after v0.99, you can also +specify no compression (Z_NO_COMPRESSION = 0), but this would create +files larger than just storing the raw bitmap. You can specify the +compression level by calling: + + #include zlib.h + png_set_compression_level(png_ptr, level); + +Another useful one is to reduce the memory level used by the library. +The memory level defaults to 8, but it can be lowered if you are +short on memory (running DOS, for example, where you only have 640K). +Note that the memory level does have an effect on compression; among +other things, lower levels will result in sections of incompressible +data being emitted in smaller stored blocks, with a correspondingly +larger relative overhead of up to 15% in the worst case. + + #include zlib.h + png_set_compression_mem_level(png_ptr, level); + +The other functions are for configuring zlib. They are not recommended +for normal use and may result in writing an invalid PNG file. See +zlib.h for more information on what these mean. + + #include zlib.h + png_set_compression_strategy(png_ptr, + strategy); + + png_set_compression_window_bits(png_ptr, + window_bits); + + png_set_compression_method(png_ptr, method); + +This controls the size of the IDAT chunks (default 8192): + + png_set_compression_buffer_size(png_ptr, size); + +As of libpng version 1.5.4, additional APIs became +available to set these separately for non-IDAT +compressed chunks such as zTXt, iTXt, and iCCP: + + #include zlib.h + #if PNG_LIBPNG_VER >= 10504 + png_set_text_compression_level(png_ptr, level); + + png_set_text_compression_mem_level(png_ptr, level); + + png_set_text_compression_strategy(png_ptr, + strategy); + + png_set_text_compression_window_bits(png_ptr, + window_bits); + + png_set_text_compression_method(png_ptr, method); + #endif + +Controlling row filtering + +If you want to control whether libpng uses filtering or not, which +filters are used, and how it goes about picking row filters, you +can call one of these functions. The selection and configuration +of row filters can have a significant impact on the size and +encoding speed and a somewhat lesser impact on the decoding speed +of an image. Filtering is enabled by default for RGB and grayscale +images (with and without alpha), but not for paletted images nor +for any images with bit depths less than 8 bits/pixel. + +The 'method' parameter sets the main filtering method, which is +currently only '0' in the PNG 1.2 specification. The 'filters' +parameter sets which filter(s), if any, should be used for each +scanline. Possible values are PNG_ALL_FILTERS and PNG_NO_FILTERS +to turn filtering on and off, respectively. + +Individual filter types are PNG_FILTER_NONE, PNG_FILTER_SUB, +PNG_FILTER_UP, PNG_FILTER_AVG, PNG_FILTER_PAETH, which can be bitwise +ORed together with '|' to specify one or more filters to use. +These filters are described in more detail in the PNG specification. +If you intend to change the filter type during the course of writing +the image, you should start with flags set for all of the filters +you intend to use so that libpng can initialize its internal +structures appropriately for all of the filter types. (Note that this +means the first row must always be adaptively filtered, because libpng +currently does not allocate the filter buffers until png_write_row() +is called for the first time.) + + filters = PNG_FILTER_NONE | PNG_FILTER_SUB + PNG_FILTER_UP | PNG_FILTER_AVG | + PNG_FILTER_PAETH | PNG_ALL_FILTERS; + + png_set_filter(png_ptr, PNG_FILTER_TYPE_BASE, + filters); + The second parameter can also be + PNG_INTRAPIXEL_DIFFERENCING if you are + writing a PNG to be embedded in a MNG + datastream. This parameter must be the + same as the value of filter_method used + in png_set_IHDR(). + +It is also possible to influence how libpng chooses from among the +available filters. This is done in one or both of two ways - by +telling it how important it is to keep the same filter for successive +rows, and by telling it the relative computational costs of the filters. + + double weights[3] = {1.5, 1.3, 1.1}, + costs[PNG_FILTER_VALUE_LAST] = + {1.0, 1.3, 1.3, 1.5, 1.7}; + + png_set_filter_heuristics(png_ptr, + PNG_FILTER_HEURISTIC_WEIGHTED, 3, + weights, costs); + +The weights are multiplying factors that indicate to libpng that the +row filter should be the same for successive rows unless another row filter +is that many times better than the previous filter. In the above example, +if the previous 3 filters were SUB, SUB, NONE, the SUB filter could have a +"sum of absolute differences" 1.5 x 1.3 times higher than other filters +and still be chosen, while the NONE filter could have a sum 1.1 times +higher than other filters and still be chosen. Unspecified weights are +taken to be 1.0, and the specified weights should probably be declining +like those above in order to emphasize recent filters over older filters. + +The filter costs specify for each filter type a relative decoding cost +to be considered when selecting row filters. This means that filters +with higher costs are less likely to be chosen over filters with lower +costs, unless their "sum of absolute differences" is that much smaller. +The costs do not necessarily reflect the exact computational speeds of +the various filters, since this would unduly influence the final image +size. + +Note that the numbers above were invented purely for this example and +are given only to help explain the function usage. Little testing has +been done to find optimum values for either the costs or the weights. + +Requesting debug printout + +The macro definition PNG_DEBUG can be used to request debugging +printout. Set it to an integer value in the range 0 to 3. Higher +numbers result in increasing amounts of debugging information. The +information is printed to the "stderr" file, unless another file +name is specified in the PNG_DEBUG_FILE macro definition. + +When PNG_DEBUG > 0, the following functions (macros) become available: + + png_debug(level, message) + png_debug1(level, message, p1) + png_debug2(level, message, p1, p2) + +in which "level" is compared to PNG_DEBUG to decide whether to print +the message, "message" is the formatted string to be printed, +and p1 and p2 are parameters that are to be embedded in the string +according to printf-style formatting directives. For example, + + png_debug1(2, "foo=%d", foo); + +is expanded to + + if (PNG_DEBUG > 2) + fprintf(PNG_DEBUG_FILE, "foo=%d\n", foo); + +When PNG_DEBUG is defined but is zero, the macros aren't defined, but you +can still use PNG_DEBUG to control your own debugging: + + #ifdef PNG_DEBUG + fprintf(stderr, ... + #endif + +When PNG_DEBUG = 1, the macros are defined, but only png_debug statements +having level = 0 will be printed. There aren't any such statements in +this version of libpng, but if you insert some they will be printed. + +VII. MNG support + +The MNG specification (available at http://www.libpng.org/pub/mng) allows +certain extensions to PNG for PNG images that are embedded in MNG datastreams. +Libpng can support some of these extensions. To enable them, use the +png_permit_mng_features() function: + + feature_set = png_permit_mng_features(png_ptr, mask) + + mask is a png_uint_32 containing the bitwise OR of the + features you want to enable. These include + PNG_FLAG_MNG_EMPTY_PLTE + PNG_FLAG_MNG_FILTER_64 + PNG_ALL_MNG_FEATURES + + feature_set is a png_uint_32 that is the bitwise AND of + your mask with the set of MNG features that is + supported by the version of libpng that you are using. + +It is an error to use this function when reading or writing a standalone +PNG file with the PNG 8-byte signature. The PNG datastream must be wrapped +in a MNG datastream. As a minimum, it must have the MNG 8-byte signature +and the MHDR and MEND chunks. Libpng does not provide support for these +or any other MNG chunks; your application must provide its own support for +them. You may wish to consider using libmng (available at +http://www.libmng.com) instead. + +VIII. Changes to Libpng from version 0.88 + +It should be noted that versions of libpng later than 0.96 are not +distributed by the original libpng author, Guy Schalnat, nor by +Andreas Dilger, who had taken over from Guy during 1996 and 1997, and +distributed versions 0.89 through 0.96, but rather by another member +of the original PNG Group, Glenn Randers-Pehrson. Guy and Andreas are +still alive and well, but they have moved on to other things. + +The old libpng functions png_read_init(), png_write_init(), +png_info_init(), png_read_destroy(), and png_write_destroy() have been +moved to PNG_INTERNAL in version 0.95 to discourage their use. These +functions will be removed from libpng version 1.4.0. + +The preferred method of creating and initializing the libpng structures is +via the png_create_read_struct(), png_create_write_struct(), and +png_create_info_struct() because they isolate the size of the structures +from the application, allow version error checking, and also allow the +use of custom error handling routines during the initialization, which +the old functions do not. The functions png_read_destroy() and +png_write_destroy() do not actually free the memory that libpng +allocated for these structs, but just reset the data structures, so they +can be used instead of png_destroy_read_struct() and +png_destroy_write_struct() if you feel there is too much system overhead +allocating and freeing the png_struct for each image read. + +Setting the error callbacks via png_set_message_fn() before +png_read_init() as was suggested in libpng-0.88 is no longer supported +because this caused applications that do not use custom error functions +to fail if the png_ptr was not initialized to zero. It is still possible +to set the error callbacks AFTER png_read_init(), or to change them with +png_set_error_fn(), which is essentially the same function, but with a new +name to force compilation errors with applications that try to use the old +method. + +Support for the sCAL, iCCP, iTXt, and sPLT chunks was added at libpng-1.0.6; +however, iTXt support was not enabled by default. + +Starting with version 1.0.7, you can find out which version of the library +you are using at run-time: + + png_uint_32 libpng_vn = png_access_version_number(); + +The number libpng_vn is constructed from the major version, minor +version with leading zero, and release number with leading zero, +(e.g., libpng_vn for version 1.0.7 is 10007). + +Note that this function does not take a png_ptr, so you can call it +before you've created one. + +You can also check which version of png.h you used when compiling your +application: + + png_uint_32 application_vn = PNG_LIBPNG_VER; + +IX. Changes to Libpng from version 1.0.x to 1.2.x + +Support for user memory management was enabled by default. To +accomplish this, the functions png_create_read_struct_2(), +png_create_write_struct_2(), png_set_mem_fn(), png_get_mem_ptr(), +png_malloc_default(), and png_free_default() were added. + +Support for the iTXt chunk has been enabled by default as of +version 1.2.41. + +Support for certain MNG features was enabled. + +Support for numbered error messages was added. However, we never got +around to actually numbering the error messages. The function +png_set_strip_error_numbers() was added (Note: the prototype for this +function was inadvertently removed from png.h in PNG_NO_ASSEMBLER_CODE +builds of libpng-1.2.15. It was restored in libpng-1.2.36). + +The png_malloc_warn() function was added at libpng-1.2.3. This issues +a png_warning and returns NULL instead of aborting when it fails to +acquire the requested memory allocation. + +Support for setting user limits on image width and height was enabled +by default. The functions png_set_user_limits(), png_get_user_width_max(), +and png_get_user_height_max() were added at libpng-1.2.6. + +The png_set_add_alpha() function was added at libpng-1.2.7. + +The function png_set_expand_gray_1_2_4_to_8() was added at libpng-1.2.9. +Unlike png_set_gray_1_2_4_to_8(), the new function does not expand the +tRNS chunk to alpha. The png_set_gray_1_2_4_to_8() function is +deprecated. + +A number of macro definitions in support of runtime selection of +assembler code features (especially Intel MMX code support) were +added at libpng-1.2.0: + + PNG_ASM_FLAG_MMX_SUPPORT_COMPILED + PNG_ASM_FLAG_MMX_SUPPORT_IN_CPU + PNG_ASM_FLAG_MMX_READ_COMBINE_ROW + PNG_ASM_FLAG_MMX_READ_INTERLACE + PNG_ASM_FLAG_MMX_READ_FILTER_SUB + PNG_ASM_FLAG_MMX_READ_FILTER_UP + PNG_ASM_FLAG_MMX_READ_FILTER_AVG + PNG_ASM_FLAG_MMX_READ_FILTER_PAETH + PNG_ASM_FLAGS_INITIALIZED + PNG_MMX_READ_FLAGS + PNG_MMX_FLAGS + PNG_MMX_WRITE_FLAGS + PNG_MMX_FLAGS + +We added the following functions in support of runtime +selection of assembler code features: + + png_get_mmx_flagmask() + png_set_mmx_thresholds() + png_get_asm_flags() + png_get_mmx_bitdepth_threshold() + png_get_mmx_rowbytes_threshold() + png_set_asm_flags() + +We replaced all of these functions with simple stubs in libpng-1.2.20, +when the Intel assembler code was removed due to a licensing issue. + +These macros are deprecated: + + PNG_READ_TRANSFORMS_NOT_SUPPORTED + PNG_PROGRESSIVE_READ_NOT_SUPPORTED + PNG_NO_SEQUENTIAL_READ_SUPPORTED + PNG_WRITE_TRANSFORMS_NOT_SUPPORTED + PNG_READ_ANCILLARY_CHUNKS_NOT_SUPPORTED + PNG_WRITE_ANCILLARY_CHUNKS_NOT_SUPPORTED + +They have been replaced, respectively, by: + + PNG_NO_READ_TRANSFORMS + PNG_NO_PROGRESSIVE_READ + PNG_NO_SEQUENTIAL_READ + PNG_NO_WRITE_TRANSFORMS + PNG_NO_READ_ANCILLARY_CHUNKS + PNG_NO_WRITE_ANCILLARY_CHUNKS + +PNG_MAX_UINT was replaced with PNG_UINT_31_MAX. It has been +deprecated since libpng-1.0.16 and libpng-1.2.6. + +The function + png_check_sig(sig, num) +was replaced with + !png_sig_cmp(sig, 0, num) +It has been deprecated since libpng-0.90. + +The function + png_set_gray_1_2_4_to_8() +which also expands tRNS to alpha was replaced with + png_set_expand_gray_1_2_4_to_8() +which does not. It has been deprecated since libpng-1.0.18 and 1.2.9. + +X. Changes to Libpng from version 1.0.x/1.2.x to 1.4.x + +Private libpng prototypes and macro definitions were moved from +png.h and pngconf.h into a new pngpriv.h header file. + +Functions png_set_benign_errors(), png_benign_error(), and +png_chunk_benign_error() were added. + +Support for setting the maximum amount of memory that the application +will allocate for reading chunks was added, as a security measure. +The functions png_set_chunk_cache_max() and png_get_chunk_cache_max() +were added to the library. + +We implemented support for I/O states by adding png_ptr member io_state +and functions png_get_io_chunk_name() and png_get_io_state() in pngget.c + +We added PNG_TRANSFORM_GRAY_TO_RGB to the available high-level +input transforms. + +Checking for and reporting of errors in the IHDR chunk is more thorough. + +Support for global arrays was removed, to improve thread safety. + +Some obsolete/deprecated macros and functions have been removed. + +Typecasted NULL definitions such as + #define png_voidp_NULL (png_voidp)NULL +were eliminated. If you used these in your application, just use +NULL instead. + +The png_struct and info_struct members "trans" and "trans_values" were +changed to "trans_alpha" and "trans_color", respectively. + +The obsolete, unused pnggccrd.c and pngvcrd.c files and related makefiles +were removed. + +The PNG_1_0_X and PNG_1_2_X macros were eliminated. + +The PNG_LEGACY_SUPPORTED macro was eliminated. + +Many WIN32_WCE #ifdefs were removed. + +The functions png_read_init(info_ptr), png_write_init(info_ptr), +png_info_init(info_ptr), png_read_destroy(), and png_write_destroy() +have been removed. They have been deprecated since libpng-0.95. + +The png_permit_empty_plte() was removed. It has been deprecated +since libpng-1.0.9. Use png_permit_mng_features() instead. + +We removed the obsolete stub functions png_get_mmx_flagmask(), +png_set_mmx_thresholds(), png_get_asm_flags(), +png_get_mmx_bitdepth_threshold(), png_get_mmx_rowbytes_threshold(), +png_set_asm_flags(), and png_mmx_supported() + +We removed the obsolete png_check_sig(), png_memcpy_check(), and +png_memset_check() functions. Instead use !png_sig_cmp(), memcpy(), +and memset(), respectively. + +The function png_set_gray_1_2_4_to_8() was removed. It has been +deprecated since libpng-1.0.18 and 1.2.9, when it was replaced with +png_set_expand_gray_1_2_4_to_8() because the former function also +expanded any tRNS chunk to an alpha channel. + +Macros for png_get_uint_16, png_get_uint_32, and png_get_int_32 +were added and are used by default instead of the corresponding +functions. Unfortunately, +from libpng-1.4.0 until 1.4.4, the png_get_uint_16 macro (but not the +function) incorrectly returned a value of type png_uint_32. + +We changed the prototype for png_malloc() from + png_malloc(png_structp png_ptr, png_uint_32 size) +to + png_malloc(png_structp png_ptr, png_alloc_size_t size) + +This also applies to the prototype for the user replacement malloc_fn(). + +The png_calloc() function was added and is used in place of +of "png_malloc(); memset();" except in the case in png_read_png() +where the array consists of pointers; in this case a "for" loop is used +after the png_malloc() to set the pointers to NULL, to give robust. +behavior in case the application runs out of memory part-way through +the process. + +We changed the prototypes of png_get_compression_buffer_size() and +png_set_compression_buffer_size() to work with png_size_t instead of +png_uint_32. + +Support for numbered error messages was removed by default, since we +never got around to actually numbering the error messages. The function +png_set_strip_error_numbers() was removed from the library by default. + +The png_zalloc() and png_zfree() functions are no longer exported. +The png_zalloc() function no longer zeroes out the memory that it +allocates. Applications that called png_zalloc(png_ptr, number, size) +can call png_calloc(png_ptr, number*size) instead, and can call +png_free() instead of png_zfree(). + +Support for dithering was disabled by default in libpng-1.4.0, because +it has not been well tested and doesn't actually "dither". +The code was not +removed, however, and could be enabled by building libpng with +PNG_READ_DITHER_SUPPORTED defined. In libpng-1.4.2, this support +was re-enabled, but the function was renamed png_set_quantize() to +reflect more accurately what it actually does. At the same time, +the PNG_DITHER_[RED,GREEN_BLUE]_BITS macros were also renamed to +PNG_QUANTIZE_[RED,GREEN,BLUE]_BITS, and PNG_READ_DITHER_SUPPORTED +was renamed to PNG_READ_QUANTIZE_SUPPORTED. + +We removed the trailing '.' from the warning and error messages. + +XI. Changes to Libpng from version 1.4.x to 1.5.x + +From libpng-1.4.0 until 1.4.4, the png_get_uint_16 macro (but not the +function) incorrectly returned a value of type png_uint_32. +The incorrect macro was removed from libpng-1.4.5. + +Checking for invalid palette index on write was added at libpng +1.5.10. If a pixel contains an invalid (out-of-range) index libpng issues +a benign error. This is enabled by default because this condition is an +error according to the PNG specification, Clause 11.3.2, but the error can +be ignored in each png_ptr with + + png_set_check_for_invalid_index(png_ptr, allowed); + + allowed - one of + 0: disable benign error (accept the + invalid data without warning). + 1: enable benign error (treat the + invalid data as an error or a + warning). + +If the error is ignored, or if png_benign_error() treats it as a warning, +any invalid pixels are decoded as opaque black by the decoder and written +as-is by the encoder. + +Retrieving the maximum palette index found was added at libpng-1.5.15. +This statement must appear after png_read_png() or png_read_image() while +reading, and after png_write_png() or png_write_image() while writing. + + int max_palette = png_get_palette_max(png_ptr, info_ptr); + +This will return the maximum palette index found in the image, or "-1" if +the palette was not checked, or "0" if no palette was found. Note that this +does not account for any palette index used by ancillary chunks such as the +bKGD chunk; you must check those separately to determine the maximum +palette index actually used. + +There are no substantial API changes between the non-deprecated parts of +the 1.4.5 API and the 1.5.0 API; however, the ability to directly access +members of the main libpng control structures, png_struct and png_info, +deprecated in earlier versions of libpng, has been completely removed from +libpng 1.5. + +We no longer include zlib.h in png.h. The include statement has been moved +to pngstruct.h, where it is not accessible by applications. Applications that +need access to information in zlib.h will need to add the '#include "zlib.h"' +directive. It does not matter whether this is placed prior to or after +the '"#include png.h"' directive. + +The png_sprintf(), png_strcpy(), and png_strncpy() macros are no longer used +and were removed. + +We moved the png_strlen(), png_memcpy(), png_memset(), and png_memcmp() +macros into a private header file (pngpriv.h) that is not accessible to +applications. + +In png_get_iCCP, the type of "profile" was changed from png_charpp +to png_bytepp, and in png_set_iCCP, from png_charp to png_const_bytep. + +There are changes of form in png.h, including new and changed macros to +declare parts of the API. Some API functions with arguments that are +pointers to data not modified within the function have been corrected to +declare these arguments with PNG_CONST. + +Much of the internal use of C macros to control the library build has also +changed and some of this is visible in the exported header files, in +particular the use of macros to control data and API elements visible +during application compilation may require significant revision to +application code. (It is extremely rare for an application to do this.) + +Any program that compiled against libpng 1.4 and did not use deprecated +features or access internal library structures should compile and work +against libpng 1.5, except for the change in the prototype for +png_get_iCCP() and png_set_iCCP() API functions mentioned above. + +libpng 1.5.0 adds PNG_ PASS macros to help in the reading and writing of +interlaced images. The macros return the number of rows and columns in +each pass and information that can be used to de-interlace and (if +absolutely necessary) interlace an image. + +libpng 1.5.0 adds an API png_longjmp(png_ptr, value). This API calls +the application-provided png_longjmp_ptr on the internal, but application +initialized, longjmp buffer. It is provided as a convenience to avoid +the need to use the png_jmpbuf macro, which had the unnecessary side +effect of resetting the internal png_longjmp_ptr value. + +libpng 1.5.0 includes a complete fixed point API. By default this is +present along with the corresponding floating point API. In general the +fixed point API is faster and smaller than the floating point one because +the PNG file format used fixed point, not floating point. This applies +even if the library uses floating point in internal calculations. A new +macro, PNG_FLOATING_ARITHMETIC_SUPPORTED, reveals whether the library +uses floating point arithmetic (the default) or fixed point arithmetic +internally for performance critical calculations such as gamma correction. +In some cases, the gamma calculations may produce slightly different +results. This has changed the results in png_rgb_to_gray and in alpha +composition (png_set_background for example). This applies even if the +original image was already linear (gamma == 1.0) and, therefore, it is +not necessary to linearize the image. This is because libpng has *not* +been changed to optimize that case correctly, yet. + +Fixed point support for the sCAL chunk comes with an important caveat; +the sCAL specification uses a decimal encoding of floating point values +and the accuracy of PNG fixed point values is insufficient for +representation of these values. Consequently a "string" API +(png_get_sCAL_s and png_set_sCAL_s) is the only reliable way of reading +arbitrary sCAL chunks in the absence of either the floating point API or +internal floating point calculations. Starting with libpng-1.5.0, both +of these functions are present when PNG_sCAL_SUPPORTED is defined. Prior +to libpng-1.5.0, their presence also depended upon PNG_FIXED_POINT_SUPPORTED +being defined and PNG_FLOATING_POINT_SUPPORTED not being defined. + +Applications no longer need to include the optional distribution header +file pngusr.h or define the corresponding macros during application +build in order to see the correct variant of the libpng API. From 1.5.0 +application code can check for the corresponding _SUPPORTED macro: + +#ifdef PNG_INCH_CONVERSIONS_SUPPORTED + /* code that uses the inch conversion APIs. */ +#endif + +This macro will only be defined if the inch conversion functions have been +compiled into libpng. The full set of macros, and whether or not support +has been compiled in, are available in the header file pnglibconf.h. +This header file is specific to the libpng build. Notice that prior to +1.5.0 the _SUPPORTED macros would always have the default definition unless +reset by pngusr.h or by explicit settings on the compiler command line. +These settings may produce compiler warnings or errors in 1.5.0 because +of macro redefinition. + +Applications can now choose whether to use these macros or to call the +corresponding function by defining PNG_USE_READ_MACROS or +PNG_NO_USE_READ_MACROS before including png.h. Notice that this is +only supported from 1.5.0; defining PNG_NO_USE_READ_MACROS prior to 1.5.0 +will lead to a link failure. + +Prior to libpng-1.5.4, the zlib compressor used the same set of parameters +when compressing the IDAT data and textual data such as zTXt and iCCP. +In libpng-1.5.4 we reinitialized the zlib stream for each type of data. +We added five png_set_text_*() functions for setting the parameters to +use with textual data. + +Prior to libpng-1.5.4, the PNG_READ_16_TO_8_ACCURATE_SCALE_SUPPORTED +option was off by default, and slightly inaccurate scaling occurred. +This option can no longer be turned off, and the choice of accurate +or inaccurate 16-to-8 scaling is by using the new png_set_scale_16_to_8() +API for accurate scaling or the old png_set_strip_16_to_8() API for simple +chopping. In libpng-1.5.4, the PNG_READ_16_TO_8_ACCURATE_SCALE_SUPPORTED +macro became PNG_READ_SCALE_16_TO_8_SUPPORTED, and the PNG_READ_16_TO_8 +macro became PNG_READ_STRIP_16_TO_8_SUPPORTED, to enable the two +png_set_*_16_to_8() functions separately. + +Prior to libpng-1.5.4, the png_set_user_limits() function could only be +used to reduce the width and height limits from the value of +PNG_USER_WIDTH_MAX and PNG_USER_HEIGHT_MAX, although this document said +that it could be used to override them. Now this function will reduce or +increase the limits. + +Starting in libpng-1.5.10, the user limits can be set en masse with the +configuration option PNG_SAFE_LIMITS_SUPPORTED. If this option is enabled, +a set of "safe" limits is applied in pngpriv.h. These can be overridden by +application calls to png_set_user_limits(), png_set_user_chunk_cache_max(), +and/or png_set_user_malloc_max() that increase or decrease the limits. Also, +in libpng-1.5.10 the default width and height limits were increased +from 1,000,000 to 0x7ffffff (i.e., made unlimited). Therefore, the +limits are now + default safe + png_user_width_max 0x7fffffff 1,000,000 + png_user_height_max 0x7fffffff 1,000,000 + png_user_chunk_cache_max 0 (unlimited) 128 + png_user_chunk_malloc_max 0 (unlimited) 8,000,000 + +The png_set_option() function (and the "options" member of the png struct) was +added to libpng-1.5.15. + +The library now supports a complete fixed point implementation and can +thus be used on systems that have no floating point support or very +limited or slow support. Previously gamma correction, an essential part +of complete PNG support, required reasonably fast floating point. + +As part of this the choice of internal implementation has been made +independent of the choice of fixed versus floating point APIs and all the +missing fixed point APIs have been implemented. + +The exact mechanism used to control attributes of API functions has +changed, as described in the INSTALL file. + +A new test program, pngvalid, is provided in addition to pngtest. +pngvalid validates the arithmetic accuracy of the gamma correction +calculations and includes a number of validations of the file format. +A subset of the full range of tests is run when "make check" is done +(in the 'configure' build.) pngvalid also allows total allocated memory +usage to be evaluated and performs additional memory overwrite validation. + +Many changes to individual feature macros have been made. The following +are the changes most likely to be noticed by library builders who +configure libpng: + +1) All feature macros now have consistent naming: + +#define PNG_NO_feature turns the feature off +#define PNG_feature_SUPPORTED turns the feature on + +pnglibconf.h contains one line for each feature macro which is either: + +#define PNG_feature_SUPPORTED + +if the feature is supported or: + +/*#undef PNG_feature_SUPPORTED*/ + +if it is not. Library code consistently checks for the 'SUPPORTED' macro. +It does not, and libpng applications should not, check for the 'NO' macro +which will not normally be defined even if the feature is not supported. +The 'NO' macros are only used internally for setting or not setting the +corresponding 'SUPPORTED' macros. + +Compatibility with the old names is provided as follows: + +PNG_INCH_CONVERSIONS turns on PNG_INCH_CONVERSIONS_SUPPORTED + +And the following definitions disable the corresponding feature: + +PNG_SETJMP_NOT_SUPPORTED disables SETJMP +PNG_READ_TRANSFORMS_NOT_SUPPORTED disables READ_TRANSFORMS +PNG_NO_READ_COMPOSITED_NODIV disables READ_COMPOSITE_NODIV +PNG_WRITE_TRANSFORMS_NOT_SUPPORTED disables WRITE_TRANSFORMS +PNG_READ_ANCILLARY_CHUNKS_NOT_SUPPORTED disables READ_ANCILLARY_CHUNKS +PNG_WRITE_ANCILLARY_CHUNKS_NOT_SUPPORTED disables WRITE_ANCILLARY_CHUNKS + +Library builders should remove use of the above, inconsistent, names. + +2) Warning and error message formatting was previously conditional on +the STDIO feature. The library has been changed to use the +CONSOLE_IO feature instead. This means that if CONSOLE_IO is disabled +the library no longer uses the printf(3) functions, even though the +default read/write implementations use (FILE) style stdio.h functions. + +3) Three feature macros now control the fixed/floating point decisions: + +PNG_FLOATING_POINT_SUPPORTED enables the floating point APIs + +PNG_FIXED_POINT_SUPPORTED enables the fixed point APIs; however, in +practice these are normally required internally anyway (because the PNG +file format is fixed point), therefore in most cases PNG_NO_FIXED_POINT +merely stops the function from being exported. + +PNG_FLOATING_ARITHMETIC_SUPPORTED chooses between the internal floating +point implementation or the fixed point one. Typically the fixed point +implementation is larger and slower than the floating point implementation +on a system that supports floating point; however, it may be faster on a +system which lacks floating point hardware and therefore uses a software +emulation. + +4) Added PNG_{READ,WRITE}_INT_FUNCTIONS_SUPPORTED. This allows the +functions to read and write ints to be disabled independently of +PNG_USE_READ_MACROS, which allows libpng to be built with the functions +even though the default is to use the macros - this allows applications +to choose at app buildtime whether or not to use macros (previously +impossible because the functions weren't in the default build.) + +XII. Changes to Libpng from version 1.5.x to 1.6.x + +A "simplified API" has been added (see documentation in png.h and a simple +example in contrib/examples/pngtopng.c). The new publicly visible API +includes the following: + + macros: + PNG_FORMAT_* + PNG_IMAGE_* + structures: + png_control + png_image + read functions + png_image_begin_read_from_file() + png_image_begin_read_from_stdio() + png_image_begin_read_from_memory() + png_image_finish_read() + png_image_free() + write functions + png_image_write_to_file() + png_image_write_to_stdio() + +Starting with libpng-1.6.0, you can configure libpng to prefix all exported +symbols, using the PNG_PREFIX macro. + +We no longer include string.h in png.h. The include statement has been moved +to pngpriv.h, where it is not accessible by applications. Applications that +need access to information in string.h must add an '#include ' +directive. It does not matter whether this is placed prior to or after +the '#include "png.h"' directive. + +The following API are now DEPRECATED: + png_info_init_3() + png_convert_to_rfc1123() which has been replaced + with png_convert_to_rfc1123_buffer() + png_malloc_default() + png_free_default() + png_reset_zstream() + +The following have been removed: + png_get_io_chunk_name(), which has been replaced + with png_get_io_chunk_type(). The new + function returns a 32-bit integer instead of + a string. + The png_sizeof(), png_strlen(), png_memcpy(), png_memcmp(), and + png_memset() macros are no longer used in the libpng sources and + have been removed. These had already been made invisible to applications + (i.e., defined in the private pngpriv.h header file) since libpng-1.5.0. + +The signatures of many exported functions were changed, such that + png_structp became png_structrp or png_const_structrp + png_infop became png_inforp or png_const_inforp +where "rp" indicates a "restricted pointer". + +Error detection in some chunks has improved; in particular the iCCP chunk +reader now does pretty complete validation of the basic format. Some bad +profiles that were previously accepted are now accepted with a warning or +rejected, depending upon the png_set_benign_errors() setting, in particular the +very old broken Microsoft/HP 3144-byte sRGB profile. Starting with +libpng-1.6.11, recognizing and checking sRGB profiles can be avoided by +means of + + #ifdef PNG_SKIP_sRGB_CHECK_PROFILE + png_set_option(png_ptr, PNG_SKIP_sRGB_CHECK_PROFILE, + PNG_OPTION_ON); + #endif + +It's not a good idea to do this if you are using the "simplified API", +which needs to be able to recognize an sRGB profile conveyed via the iCCP +chunk. + +The PNG spec requirement that only grayscale profiles may appear in images +with color type 0 or 4 and that even if the image only contains gray pixels, +only RGB profiles may appear in images with color type 2, 3, or 6, is now +enforced. The sRGB chunk is allowed to appear in images with any color type +and is interpreted by libpng to convey a one-tracer-curve profile or a +three-tracer-curve profile as appropriate. + +Prior to libpng-1.6.0 a warning would be issued if the iTXt chunk contained +an empty language field or an empty translated keyword. Both of these +are allowed by the PNG specification, so these warnings are no longer issued. + +The library now issues an error if the application attempts to set a +transform after it calls png_read_update_info() or if it attempts to call +both png_read_update_info() and png_start_read_image() or to call either +of them more than once. + +The default condition for benign_errors is now to treat benign errors as +warnings while reading and as errors while writing. + +The library now issues a warning if both background processing and RGB to +gray are used when gamma correction happens. As with previous versions of +the library the results are numerically very incorrect in this case. + +There are some minor arithmetic changes in some transforms such as +png_set_background(), that might be detected by certain regression tests. + +Unknown chunk handling has been improved internally, without any API change. +This adds more correct option control of the unknown handling, corrects +a pre-existing bug where the per-chunk 'keep' setting is ignored, and makes +it possible to skip IDAT chunks in the sequential reader. + +The machine-generated configure files are no longer included in branches +libpng16 and later of the GIT repository. They continue to be included +in the tarball releases, however. + +Libpng-1.6.0 through 1.6.2 used the CMF bytes at the beginning of the IDAT +stream to set the size of the sliding window for reading instead of using the +default 32-kbyte sliding window size. It was discovered that there are +hundreds of PNG files in the wild that have incorrect CMF bytes that caused +zlib to issue the "invalid distance too far back" error and reject the file. +Libpng-1.6.3 and later calculate their own safe CMF from the image dimensions, +provide a way to revert to the libpng-1.5.x behavior (ignoring the CMF bytes +and using a 32-kbyte sliding window), by using + + png_set_option(png_ptr, PNG_MAXIMUM_INFLATE_WINDOW, + PNG_OPTION_ON); + +and provide a tool (contrib/tools/pngfix) for rewriting a PNG file while +optimizing the CMF bytes in its IDAT chunk correctly. + +Libpng-1.6.0 and libpng-1.6.1 wrote uncompressed iTXt chunks with the wrong +length, which resulted in PNG files that cannot be read beyond the bad iTXt +chunk. This error was fixed in libpng-1.6.3, and a tool (called +contrib/tools/png-fix-itxt) has been added to the libpng distribution. + +XIII. Detecting libpng + +The png_get_io_ptr() function has been present since libpng-0.88, has never +changed, and is unaffected by conditional compilation macros. It is the +best choice for use in configure scripts for detecting the presence of any +libpng version since 0.88. In an autoconf "configure.in" you could use + + AC_CHECK_LIB(png, png_get_io_ptr, ... + +XV. Source code repository + +Since about February 2009, version 1.2.34, libpng has been under "git" source +control. The git repository was built from old libpng-x.y.z.tar.gz files +going back to version 0.70. You can access the git repository (read only) +at + + git://git.code.sf.net/p/libpng/code + +or you can browse it with a web browser by selecting the "code" button at + + https://sourceforge.net/projects/libpng + +Patches can be sent to glennrp at users.sourceforge.net or to +png-mng-implement at lists.sourceforge.net or you can upload them to +the libpng bug tracker at + + http://libpng.sourceforge.net + +We also accept patches built from the tar or zip distributions, and +simple verbal discriptions of bug fixes, reported either to the +SourceForge bug tracker, to the png-mng-implement at lists.sf.net +mailing list, or directly to glennrp. + +XV. Coding style + +Our coding style is similar to the "Allman" style +(See http://en.wikipedia.org/wiki/Indent_style#Allman_style), with curly +braces on separate lines: + + if (condition) + { + action; + } + + else if (another condition) + { + another action; + } + +The braces can be omitted from simple one-line actions: + + if (condition) + return (0); + +We use 3-space indentation, except for continued statements which +are usually indented the same as the first line of the statement +plus four more spaces. + +For macro definitions we use 2-space indentation, always leaving the "#" +in the first column. + + #ifndef PNG_NO_FEATURE + # ifndef PNG_FEATURE_SUPPORTED + # define PNG_FEATURE_SUPPORTED + # endif + #endif + +Comments appear with the leading "/*" at the same indentation as +the statement that follows the comment: + + /* Single-line comment */ + statement; + + /* This is a multiple-line + * comment. + */ + statement; + +Very short comments can be placed after the end of the statement +to which they pertain: + + statement; /* comment */ + +We don't use C++ style ("//") comments. We have, however, +used them in the past in some now-abandoned MMX assembler +code. + +Functions and their curly braces are not indented, and +exported functions are marked with PNGAPI: + + /* This is a public function that is visible to + * application programmers. It does thus-and-so. + */ + void PNGAPI + png_exported_function(png_ptr, png_info, foo) + { + body; + } + +The return type and decorations are placed on a separate line +ahead of the function name, as illustrated above. + +The prototypes for all exported functions appear in png.h, +above the comment that says + + /* Maintainer: Put new public prototypes here ... */ + +We mark all non-exported functions with "/* PRIVATE */"": + + void /* PRIVATE */ + png_non_exported_function(png_ptr, png_info, foo) + { + body; + } + +The prototypes for non-exported functions (except for those in +pngtest) appear in +pngpriv.h +above the comment that says + + /* Maintainer: Put new private prototypes here ^ */ + +We put a space after the "sizeof" operator and we omit the +optional parentheses around its argument when the argument +is an expression, not a type name, and we always enclose the +sizeof operator, with its argument, in parentheses: + + (sizeof (png_uint_32)) + (sizeof array) + +Prior to libpng-1.6.0 we used a "png_sizeof()" macro, formatted as +though it were a function. + +To avoid polluting the global namespace, the names of all exported +functions and variables begin with "png_", and all publicly visible C +preprocessor macros begin with "PNG". We request that applications that +use libpng *not* begin any of their own symbols with either of these strings. + +We put a space after each comma and after each semicolon +in "for" statements, and we put spaces before and after each +C binary operator and after "for" or "while", and before +"?". We don't put a space between a typecast and the expression +being cast, nor do we put one between a function name and the +left parenthesis that follows it: + + for (i = 2; i > 0; --i) + y[i] = a(x) + (int)b; + +We prefer #ifdef and #ifndef to #if defined() and #if !defined() +when there is only one macro being tested. We always use parentheses +with "defined". + +We prefer to express integers that are used as bit masks in hex format, +with an even number of lower-case hex digits (e.g., 0x00, 0xff, 0x0100). + +We prefer to use underscores in variable names rather than camelCase, except +for a few type names that we inherit from zlib.h. + +We prefer "if (something != 0)" and "if (something == 0)" +over "if (something)" and if "(!something)", respectively. + +We do not use the TAB character for indentation in the C sources. + +Lines do not exceed 80 characters. + +Other rules can be inferred by inspecting the libpng source. + +XVI. Y2K Compliance in libpng + +June 12, 2014 + +Since the PNG Development group is an ad-hoc body, we can't make +an official declaration. + +This is your unofficial assurance that libpng from version 0.71 and +upward through 1.6.12 are Y2K compliant. It is my belief that earlier +versions were also Y2K compliant. + +Libpng only has two year fields. One is a 2-byte unsigned integer +that will hold years up to 65535. The other, which is deprecated, +holds the date in text format, and will hold years up to 9999. + +The integer is + "png_uint_16 year" in png_time_struct. + +The string is + "char time_buffer[29]" in png_struct. This is no longer used +in libpng-1.6.x and will be removed from libpng-1.7.0. + +There are seven time-related functions: + + png_convert_to_rfc_1123() in png.c + (formerly png_convert_to_rfc_1152() in error) + png_convert_from_struct_tm() in pngwrite.c, called + in pngwrite.c + png_convert_from_time_t() in pngwrite.c + png_get_tIME() in pngget.c + png_handle_tIME() in pngrutil.c, called in pngread.c + png_set_tIME() in pngset.c + png_write_tIME() in pngwutil.c, called in pngwrite.c + +All appear to handle dates properly in a Y2K environment. The +png_convert_from_time_t() function calls gmtime() to convert from system +clock time, which returns (year - 1900), which we properly convert to +the full 4-digit year. There is a possibility that applications using +libpng are not passing 4-digit years into the png_convert_to_rfc_1123() +function, or that they are incorrectly passing only a 2-digit year +instead of "year - 1900" into the png_convert_from_struct_tm() function, +but this is not under our control. The libpng documentation has always +stated that it works with 4-digit years, and the APIs have been +documented as such. + +The tIME chunk itself is also Y2K compliant. It uses a 2-byte unsigned +integer to hold the year, and can hold years as large as 65535. + +zlib, upon which libpng depends, is also Y2K compliant. It contains +no date-related code. + + + Glenn Randers-Pehrson + libpng maintainer + PNG Development Group diff --git a/png/libpng.3 b/png/libpng.3 new file mode 100644 index 0000000..6ac1b6a --- /dev/null +++ b/png/libpng.3 @@ -0,0 +1,6208 @@ +.TH LIBPNG 3 "June 12, 2014" +.SH NAME +libpng \- Portable Network Graphics (PNG) Reference Library 1.6.12 +.SH SYNOPSIS +\fB +#include \fP + +\fBpng_uint_32 png_access_version_number \fI(void\fP\fB);\fP + +\fBvoid png_benign_error (png_structp \fP\fIpng_ptr\fP\fB, png_const_charp \fIerror\fP\fB);\fP + +\fBvoid png_build_grayscale_palette (int \fP\fIbit_depth\fP\fB, png_colorp \fIpalette\fP\fB);\fP + +\fBpng_voidp png_calloc (png_structp \fP\fIpng_ptr\fP\fB, png_alloc_size_t \fIsize\fP\fB);\fP + +\fBvoid png_chunk_benign_error (png_structp \fP\fIpng_ptr\fP\fB, png_const_charp \fIerror\fP\fB);\fP + +\fBvoid png_chunk_error (png_structp \fP\fIpng_ptr\fP\fB, png_const_charp \fIerror\fP\fB);\fP + +\fBvoid png_chunk_warning (png_structp \fP\fIpng_ptr\fP\fB, png_const_charp \fImessage\fP\fB);\fP + +\fBvoid png_convert_from_struct_tm (png_timep \fP\fIptime\fP\fB, struct tm FAR * \fIttime\fP\fB);\fP + +\fBvoid png_convert_from_time_t (png_timep \fP\fIptime\fP\fB, time_t \fIttime\fP\fB);\fP + +\fBpng_charp png_convert_to_rfc1123 (png_structp \fP\fIpng_ptr\fP\fB, png_timep \fIptime\fP\fB);\fP + +\fBpng_infop png_create_info_struct (png_structp \fIpng_ptr\fP\fB);\fP + +\fBpng_structp png_create_read_struct (png_const_charp \fP\fIuser_png_ver\fP\fB, png_voidp \fP\fIerror_ptr\fP\fB, png_error_ptr \fP\fIerror_fn\fP\fB, png_error_ptr \fIwarn_fn\fP\fB);\fP + +\fBpng_structp png_create_read_struct_2 (png_const_charp \fP\fIuser_png_ver\fP\fB, png_voidp \fP\fIerror_ptr\fP\fB, png_error_ptr \fP\fIerror_fn\fP\fB, png_error_ptr \fP\fIwarn_fn\fP\fB, png_voidp \fP\fImem_ptr\fP\fB, png_malloc_ptr \fP\fImalloc_fn\fP\fB, png_free_ptr \fIfree_fn\fP\fB);\fP + +\fBpng_structp png_create_write_struct (png_const_charp \fP\fIuser_png_ver\fP\fB, png_voidp \fP\fIerror_ptr\fP\fB, png_error_ptr \fP\fIerror_fn\fP\fB, png_error_ptr \fIwarn_fn\fP\fB);\fP + +\fBpng_structp png_create_write_struct_2 (png_const_charp \fP\fIuser_png_ver\fP\fB, png_voidp \fP\fIerror_ptr\fP\fB, png_error_ptr \fP\fIerror_fn\fP\fB, png_error_ptr \fP\fIwarn_fn\fP\fB, png_voidp \fP\fImem_ptr\fP\fB, png_malloc_ptr \fP\fImalloc_fn\fP\fB, png_free_ptr \fIfree_fn\fP\fB);\fP + +\fBvoid png_data_freer (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, int \fP\fIfreer\fP\fB, png_uint_32 \fImask)\fP\fB);\fP + +\fBvoid png_destroy_info_struct (png_structp \fP\fIpng_ptr\fP\fB, png_infopp \fIinfo_ptr_ptr\fP\fB);\fP + +\fBvoid png_destroy_read_struct (png_structpp \fP\fIpng_ptr_ptr\fP\fB, png_infopp \fP\fIinfo_ptr_ptr\fP\fB, png_infopp \fIend_info_ptr_ptr\fP\fB);\fP + +\fBvoid png_destroy_write_struct (png_structpp \fP\fIpng_ptr_ptr\fP\fB, png_infopp \fIinfo_ptr_ptr\fP\fB);\fP + +\fBvoid png_err (png_structp \fIpng_ptr\fP\fB);\fP + +\fBvoid png_error (png_structp \fP\fIpng_ptr\fP\fB, png_const_charp \fIerror\fP\fB);\fP + +\fBvoid png_free (png_structp \fP\fIpng_ptr\fP\fB, png_voidp \fIptr\fP\fB);\fP + +\fBvoid png_free_chunk_list (png_structp \fIpng_ptr\fP\fB);\fP + +\fBvoid png_free_default (png_structp \fP\fIpng_ptr\fP\fB, png_voidp \fIptr\fP\fB);\fP + +\fBvoid png_free_data (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, int \fInum\fP\fB);\fP + +\fBpng_byte png_get_bit_depth (png_const_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fIinfo_ptr\fP\fB);\fP + +\fBpng_uint_32 png_get_bKGD (png_const_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_color_16p \fI*background\fP\fB);\fP + +\fBpng_byte png_get_channels (png_const_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fIinfo_ptr\fP\fB);\fP + +\fBpng_uint_32 png_get_cHRM (png_const_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fP\fIinfo_ptr\fP\fB, double \fP\fI*white_x\fP\fB, double \fP\fI*white_y\fP\fB, double \fP\fI*red_x\fP\fB, double \fP\fI*red_y\fP\fB, double \fP\fI*green_x\fP\fB, double \fP\fI*green_y\fP\fB, double \fP\fI*blue_x\fP\fB, double \fI*blue_y\fP\fB);\fP + +\fBpng_uint_32 png_get_cHRM_fixed (png_const_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fP\fIinfo_ptr\fP\fB, png_uint_32 \fP\fI*white_x\fP\fB, png_uint_32 \fP\fI*white_y\fP\fB, png_uint_32 \fP\fI*red_x\fP\fB, png_uint_32 \fP\fI*red_y\fP\fB, png_uint_32 \fP\fI*green_x\fP\fB, png_uint_32 \fP\fI*green_y\fP\fB, png_uint_32 \fP\fI*blue_x\fP\fB, png_uint_32 \fI*blue_y\fP\fB);\fP + +\fBpng_uint_32 png_get_cHRM_XYZ (png_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fP\fIinfo_ptr\fP\fB, double \fP\fI*red_X\fP\fB, double \fP\fI*red_Y\fP\fB, double \fP\fI*red_Z\fP\fB, double \fP\fI*green_X\fP\fB, double \fP\fI*green_Y\fP\fB, double \fP\fI*green_Z\fP\fB, double \fP\fI*blue_X\fP\fB, double \fP\fI*blue_Y\fP\fB, double \fI*blue_Z\fP\fB);\fP + +\fBpng_uint_32 png_get_cHRM_XYZ_fixed (png_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fP\fIinfo_ptr\fP\fB, png_fixed_point \fP\fI*int_red_X\fP\fB, png_fixed_point \fP\fI*int_red_Y\fP\fB, png_fixed_point \fP\fI*int_red_Z\fP\fB, png_fixed_point \fP\fI*int_green_X\fP\fB, png_fixed_point \fP\fI*int_green_Y\fP\fB, png_fixed_point \fP\fI*int_green_Z\fP\fB, png_fixed_point \fP\fI*int_blue_X\fP\fB, png_fixed_point \fP\fI*int_blue_Y\fP\fB, png_fixed_point \fI*int_blue_Z\fP\fB);\fP + +\fBpng_uint_32 png_get_chunk_cache_max (png_const_structp \fIpng_ptr\fP\fB);\fP + +\fBpng_alloc_size_t png_get_chunk_malloc_max (png_const_structp \fIpng_ptr\fP\fB);\fP + +\fBpng_byte png_get_color_type (png_const_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fIinfo_ptr\fP\fB);\fP + +\fBpng_uint_32 png_get_compression_buffer_size (png_const_structp \fIpng_ptr\fP\fB);\fP + +\fBpng_byte png_get_compression_type (png_const_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fIinfo_ptr\fP\fB);\fP + +\fBpng_byte png_get_copyright (png_const_structp \fIpng_ptr\fP\fB);\fP + +\fBpng_uint_32 png_get_current_row_number \fI(png_const_structp\fP\fB);\fP + +\fBpng_byte png_get_current_pass_number \fI(png_const_structp\fP\fB);\fP + +\fBpng_voidp png_get_error_ptr (png_const_structp \fIpng_ptr\fP\fB);\fP + +\fBpng_byte png_get_filter_type (png_const_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fIinfo_ptr\fP\fB);\fP + +\fBpng_uint_32 png_get_gAMA (png_const_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fP\fIinfo_ptr\fP\fB, double \fI*file_gamma\fP\fB);\fP + +\fBpng_uint_32 png_get_gAMA_fixed (png_const_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fP\fIinfo_ptr\fP\fB, png_uint_32 \fI*int_file_gamma\fP\fB);\fP + +\fBpng_byte png_get_header_ver (png_const_structp \fIpng_ptr\fP\fB);\fP + +\fBpng_byte png_get_header_version (png_const_structp \fIpng_ptr\fP\fB);\fP + +\fBpng_uint_32 png_get_hIST (png_const_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fP\fIinfo_ptr\fP\fB, png_uint_16p \fI*hist\fP\fB);\fP + +\fBpng_uint_32 png_get_iCCP (png_const_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fP\fIinfo_ptr\fP\fB, png_charpp \fP\fIname\fP\fB, int \fP\fI*compression_type\fP\fB, png_bytepp \fP\fIprofile\fP\fB, png_uint_32 \fI*proflen\fP\fB);\fP + +\fBpng_uint_32 png_get_IHDR (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_uint_32 \fP\fI*width\fP\fB, png_uint_32 \fP\fI*height\fP\fB, int \fP\fI*bit_depth\fP\fB, int \fP\fI*color_type\fP\fB, int \fP\fI*interlace_type\fP\fB, int \fP\fI*compression_type\fP\fB, int \fI*filter_type\fP\fB);\fP + +\fBpng_uint_32 png_get_image_height (png_const_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fIinfo_ptr\fP\fB);\fP + +\fBpng_uint_32 png_get_image_width (png_const_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fIinfo_ptr\fP\fB);\fP + +\fBpng_int_32 png_get_int_32 (png_bytep \fIbuf\fP\fB);\fP + +\fBpng_byte png_get_interlace_type (png_const_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fIinfo_ptr\fP\fB);\fP + +\fBpng_uint_32 png_get_io_chunk_type (png_const_structp \fIpng_ptr\fP\fB);\fP + +\fBpng_voidp png_get_io_ptr (png_structp \fIpng_ptr\fP\fB);\fP + +\fBpng_uint_32 png_get_io_state (png_structp \fIpng_ptr\fP\fB);\fP + +\fBpng_byte png_get_libpng_ver (png_const_structp \fIpng_ptr\fP\fB);\fP + +\fBpng_voidp png_get_mem_ptr (png_const_structp \fIpng_ptr\fP\fB);\fP + +\fBpng_uint_32 png_get_oFFs (png_const_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fP\fIinfo_ptr\fP\fB, png_uint_32 \fP\fI*offset_x\fP\fB, png_uint_32 \fP\fI*offset_y\fP\fB, int \fI*unit_type\fP\fB);\fP + +\fBpng_uint_32 png_get_pCAL (png_const_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fP\fIinfo_ptr\fP\fB, png_charp \fP\fI*purpose\fP\fB, png_int_32 \fP\fI*X0\fP\fB, png_int_32 \fP\fI*X1\fP\fB, int \fP\fI*type\fP\fB, int \fP\fI*nparams\fP\fB, png_charp \fP\fI*units\fP\fB, png_charpp \fI*params\fP\fB);\fP + +\fBpng_uint_32 png_get_pHYs (png_const_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fP\fIinfo_ptr\fP\fB, png_uint_32 \fP\fI*res_x\fP\fB, png_uint_32 \fP\fI*res_y\fP\fB, int \fI*unit_type\fP\fB);\fP + +\fBfloat png_get_pixel_aspect_ratio (png_const_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fIinfo_ptr\fP\fB);\fP + +\fBpng_uint_32 png_get_pHYs_dpi (png_const_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fP\fIinfo_ptr\fP\fB, png_uint_32 \fP\fI*res_x\fP\fB, png_uint_32 \fP\fI*res_y\fP\fB, int \fI*unit_type\fP\fB);\fP + +\fBpng_fixed_point png_get_pixel_aspect_ratio_fixed (png_const_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fIinfo_ptr\fP\fB);\fP + +\fBpng_uint_32 png_get_pixels_per_inch (png_const_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fIinfo_ptr\fP\fB);\fP + +\fBpng_uint_32 png_get_pixels_per_meter (png_const_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fIinfo_ptr\fP\fB);\fP + +\fBpng_voidp png_get_progressive_ptr (png_const_structp \fIpng_ptr\fP\fB);\fP + +\fBpng_uint_32 png_get_PLTE (png_const_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fP\fIinfo_ptr\fP\fB, png_colorp \fP\fI*palette\fP\fB, int \fI*num_palette\fP\fB);\fP + +\fBpng_byte png_get_rgb_to_gray_status (png_const_structp \fIpng_ptr\fP\fB);\fP + +\fBpng_uint_32 png_get_rowbytes (png_const_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fIinfo_ptr\fP\fB);\fP + +\fBpng_bytepp png_get_rows (png_const_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fIinfo_ptr\fP\fB);\fP + +\fBpng_uint_32 png_get_sBIT (png_const_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_color_8p \fI*sig_bit\fP\fB);\fP + +\fBvoid png_get_sCAL (png_const_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fP\fIinfo_ptr\fP\fB, int* \fP\fIunit\fP\fB, double* \fP\fIwidth\fP\fB, double* \fIheight\fP\fB);\fP + +\fBvoid png_get_sCAL_fixed (png_const_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fP\fIinfo_ptr\fP\fB, int* \fP\fIunit\fP\fB, png_fixed_pointp \fP\fIwidth\fP\fB, png_fixed_pointp \fIheight\fP\fB);\fP + +\fBvoid png_get_sCAL_s (png_const_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fP\fIinfo_ptr\fP\fB, int* \fP\fIunit\fP\fB, png_charpp \fP\fIwidth\fP\fB, png_charpp \fIheight\fP\fB);\fP + +\fBpng_bytep png_get_signature (png_const_structp \fP\fIpng_ptr\fP\fB, png_infop \fIinfo_ptr\fP\fB);\fP + +\fBpng_uint_32 png_get_sPLT (png_const_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fP\fIinfo_ptr\fP\fB, png_spalette_p \fI*splt_ptr\fP\fB);\fP + +\fBpng_uint_32 png_get_sRGB (png_const_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fP\fIinfo_ptr\fP\fB, int \fI*file_srgb_intent\fP\fB);\fP + +\fBpng_uint_32 png_get_text (png_const_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fP\fIinfo_ptr\fP\fB, png_textp \fP\fI*text_ptr\fP\fB, int \fI*num_text\fP\fB);\fP + +\fBpng_uint_32 png_get_tIME (png_const_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_timep \fI*mod_time\fP\fB);\fP + +\fBpng_uint_32 png_get_tRNS (png_const_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_bytep \fP\fI*trans_alpha\fP\fB, int \fP\fI*num_trans\fP\fB, png_color_16p \fI*trans_color\fP\fB);\fP + +\fB/* This function is really an inline macro. \fI*/ + +\fBpng_uint_16 png_get_uint_16 (png_bytep \fIbuf\fP\fB);\fP + +\fBpng_uint_32 png_get_uint_31 (png_structp \fP\fIpng_ptr\fP\fB, png_bytep \fIbuf\fP\fB);\fP + +\fB/* This function is really an inline macro. \fI*/ + +\fBpng_uint_32 png_get_uint_32 (png_bytep \fIbuf\fP\fB);\fP + +\fBpng_uint_32 png_get_unknown_chunks (png_const_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fP\fIinfo_ptr\fP\fB, png_unknown_chunkpp \fIunknowns\fP\fB);\fP + +\fBpng_voidp png_get_user_chunk_ptr (png_const_structp \fIpng_ptr\fP\fB);\fP + +\fBpng_uint_32 png_get_user_height_max (png_const_structp \fIpng_ptr\fP\fB);\fP + +\fBpng_voidp png_get_user_transform_ptr (png_const_structp \fIpng_ptr\fP\fB);\fP + +\fBpng_uint_32 png_get_user_width_max (png_const_structp \fIpng_ptr\fP\fB);\fP + +\fBpng_uint_32 png_get_valid (png_const_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fP\fIinfo_ptr\fP\fB, png_uint_32 \fIflag\fP\fB);\fP + +\fBfloat png_get_x_offset_inches (png_const_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fIinfo_ptr\fP\fB);\fP + +\fBpng_fixed_point png_get_x_offset_inches_fixed (png_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fIinfo_ptr\fP\fB);\fP + +\fBpng_int_32 png_get_x_offset_microns (png_const_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fIinfo_ptr\fP\fB);\fP + +\fBpng_int_32 png_get_x_offset_pixels (png_const_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fIinfo_ptr\fP\fB);\fP + +\fBpng_uint_32 png_get_x_pixels_per_inch (png_const_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fIinfo_ptr\fP\fB);\fP + +\fBpng_uint_32 png_get_x_pixels_per_meter (png_const_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fIinfo_ptr\fP\fB);\fP + +\fBfloat png_get_y_offset_inches (png_const_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fIinfo_ptr\fP\fB);\fP + +\fBpng_fixed_point png_get_y_offset_inches_fixed (png_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fIinfo_ptr\fP\fB);\fP + +\fBpng_int_32 png_get_y_offset_microns (png_const_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fIinfo_ptr\fP\fB);\fP + +\fBpng_int_32 png_get_y_offset_pixels (png_const_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fIinfo_ptr\fP\fB);\fP + +\fBpng_uint_32 png_get_y_pixels_per_inch (png_const_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fIinfo_ptr\fP\fB);\fP + +\fBpng_uint_32 png_get_y_pixels_per_meter (png_const_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fIinfo_ptr\fP\fB);\fP + +\fBint png_handle_as_unknown (png_structp \fP\fIpng_ptr\fP\fB, png_bytep \fIchunk_name\fP\fB);\fP + +\fBint png_image_begin_read_from_file (png_imagep \fP\fIimage\fP\fB, const char \fI*file_name\fP\fB);\fP + +\fBint png_image_begin_read_from_stdio (png_imagep \fP\fIimage\fP\fB, FILE* \fIfile\fP\fB);\fP + +\fBint, png_image_begin_read_from_memory (png_imagep \fP\fIimage\fP\fB, png_const_voidp \fP\fImemory\fP\fB, png_size_t \fIsize\fP\fB);\fP + +\fBint png_image_finish_read (png_imagep \fP\fIimage\fP\fB, png_colorp \fP\fIbackground\fP\fB, void \fP\fI*buffer\fP\fB, png_int_32 \fP\fIrow_stride\fP\fB, void \fI*colormap\fP\fB);\fP + +\fBvoid png_image_free (png_imagep \fIimage\fP\fB);\fP + +\fBint png_image_write_to_file (png_imagep \fP\fIimage\fP\fB, const char \fP\fI*file\fP\fB, int \fP\fIconvert_to_8bit\fP\fB, const void \fP\fI*buffer\fP\fB, png_int_32 \fP\fIrow_stride\fP\fB, void \fI*colormap\fP\fB);\fP + +\fBint png_image_write_to_stdio (png_imagep \fP\fIimage\fP\fB, FILE \fP\fI*file\fP\fB, int \fP\fIconvert_to_8_bit\fP\fB, const void \fP\fI*buffer\fP\fB, png_int_32 \fP\fIrow_stride\fP\fB, void \fI*colormap)\fP\fB);\fP + +\fBvoid png_info_init_3 (png_infopp \fP\fIinfo_ptr\fP\fB, png_size_t \fIpng_info_struct_size\fP\fB);\fP + +\fBvoid png_init_io (png_structp \fP\fIpng_ptr\fP\fB, FILE \fI*fp\fP\fB);\fP + +\fBvoid png_longjmp (png_structp \fP\fIpng_ptr\fP\fB, int \fIval\fP\fB);\fP + +\fBpng_voidp png_malloc (png_structp \fP\fIpng_ptr\fP\fB, png_alloc_size_t \fIsize\fP\fB);\fP + +\fBpng_voidp png_malloc_default (png_structp \fP\fIpng_ptr\fP\fB, png_alloc_size_t \fIsize\fP\fB);\fP + +\fBpng_voidp png_malloc_warn (png_structp \fP\fIpng_ptr\fP\fB, png_alloc_size_t \fIsize\fP\fB);\fP + +\fBpng_uint_32 png_permit_mng_features (png_structp \fP\fIpng_ptr\fP\fB, png_uint_32 \fImng_features_permitted\fP\fB);\fP + +\fBvoid png_process_data (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_bytep \fP\fIbuffer\fP\fB, png_size_t \fIbuffer_size\fP\fB);\fP + +\fBpng_size_t png_process_data_pause \fP\fI(png_structp\fP\fB, int \fIsave\fP\fB);\fP + +\fBpng_uint_32 png_process_data_skip \fI(png_structp\fP\fB);\fP + +\fBvoid png_progressive_combine_row (png_structp \fP\fIpng_ptr\fP\fB, png_bytep \fP\fIold_row\fP\fB, png_bytep \fInew_row\fP\fB);\fP + +\fBvoid png_read_end (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fIinfo_ptr\fP\fB);\fP + +\fBvoid png_read_image (png_structp \fP\fIpng_ptr\fP\fB, png_bytepp \fIimage\fP\fB);\fP + +\fBvoid png_read_info (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fIinfo_ptr\fP\fB);\fP + +\fBvoid png_read_png (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, int \fP\fItransforms\fP\fB, png_voidp \fIparams\fP\fB);\fP + +\fBvoid png_read_row (png_structp \fP\fIpng_ptr\fP\fB, png_bytep \fP\fIrow\fP\fB, png_bytep \fIdisplay_row\fP\fB);\fP + +\fBvoid png_read_rows (png_structp \fP\fIpng_ptr\fP\fB, png_bytepp \fP\fIrow\fP\fB, png_bytepp \fP\fIdisplay_row\fP\fB, png_uint_32 \fInum_rows\fP\fB);\fP + +\fBvoid png_read_update_info (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fIinfo_ptr\fP\fB);\fP + +\fBint png_reset_zstream (png_structp \fIpng_ptr\fP\fB);\fP + +\fBvoid png_save_int_32 (png_bytep \fP\fIbuf\fP\fB, png_int_32 \fIi\fP\fB);\fP + +\fBvoid png_save_uint_16 (png_bytep \fP\fIbuf\fP\fB, unsigned int \fIi\fP\fB);\fP + +\fBvoid png_save_uint_32 (png_bytep \fP\fIbuf\fP\fB, png_uint_32 \fIi\fP\fB);\fP + +\fBvoid png_set_add_alpha (png_structp \fP\fIpng_ptr\fP\fB, png_uint_32 \fP\fIfiller\fP\fB, int \fIflags\fP\fB);\fP + +\fBvoid png_set_alpha_mode (png_structp \fP\fIpng_ptr\fP\fB, int \fP\fImode\fP\fB, double \fIoutput_gamma\fP\fB);\fP + +\fBvoid png_set_alpha_mode_fixed (png_structp \fP\fIpng_ptr\fP\fB, int \fP\fImode\fP\fB, png_fixed_point \fIoutput_gamma\fP\fB);\fP + +\fBvoid png_set_background (png_structp \fP\fIpng_ptr\fP\fB, png_color_16p \fP\fIbackground_color\fP\fB, int \fP\fIbackground_gamma_code\fP\fB, int \fP\fIneed_expand\fP\fB, double \fIbackground_gamma\fP\fB);\fP + +\fBvoid png_set_background_fixed (png_structp \fP\fIpng_ptr\fP\fB, png_color_16p \fP\fIbackground_color\fP\fB, int \fP\fIbackground_gamma_code\fP\fB, int \fP\fIneed_expand\fP\fB, png_uint_32 \fIbackground_gamma\fP\fB);\fP + +\fBvoid png_set_benign_errors (png_structp \fP\fIpng_ptr\fP\fB, int \fIallowed\fP\fB);\fP + +\fBvoid png_set_bgr (png_structp \fIpng_ptr\fP\fB);\fP + +\fBvoid png_set_bKGD (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_color_16p \fIbackground\fP\fB);\fP + +\fBvoid png_set_check_for_invalid_index(png_structrp \fP\fIpng_ptr\fP\fB, int \fIallowed\fP\fB);\fP + +\fBvoid png_set_cHRM (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, double \fP\fIwhite_x\fP\fB, double \fP\fIwhite_y\fP\fB, double \fP\fIred_x\fP\fB, double \fP\fIred_y\fP\fB, double \fP\fIgreen_x\fP\fB, double \fP\fIgreen_y\fP\fB, double \fP\fIblue_x\fP\fB, double \fIblue_y\fP\fB);\fP + +\fBvoid png_set_cHRM_fixed (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_uint_32 \fP\fIwhite_x\fP\fB, png_uint_32 \fP\fIwhite_y\fP\fB, png_uint_32 \fP\fIred_x\fP\fB, png_uint_32 \fP\fIred_y\fP\fB, png_uint_32 \fP\fIgreen_x\fP\fB, png_uint_32 \fP\fIgreen_y\fP\fB, png_uint_32 \fP\fIblue_x\fP\fB, png_uint_32 \fIblue_y\fP\fB);\fP + +\fBvoid png_set_cHRM_XYZ (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, double \fP\fIred_X\fP\fB, double \fP\fIred_Y\fP\fB, double \fP\fIred_Z\fP\fB, double \fP\fIgreen_X\fP\fB, double \fP\fIgreen_Y\fP\fB, double \fP\fIgreen_Z\fP\fB, double \fP\fIblue_X\fP\fB, double \fP\fIblue_Y\fP\fB, double \fIblue_Z\fP\fB);\fP + +\fBvoid png_set_cHRM_XYZ_fixed (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_fixed_point \fP\fIint_red_X\fP\fB, png_fixed_point \fP\fIint_red_Y\fP\fB, png_fixed_point \fP\fIint_red_Z\fP\fB, png_fixed_point \fP\fIint_green_X\fP\fB, png_fixed_point \fP\fIint_green_Y\fP\fB, png_fixed_point \fP\fIint_green_Z\fP\fB, png_fixed_point \fP\fIint_blue_X\fP\fB, png_fixed_point \fP\fIint_blue_Y\fP\fB, png_fixed_point \fIint_blue_Z\fP\fB);\fP + +\fBvoid png_set_chunk_cache_max (png_structp \fP\fIpng_ptr\fP\fB, png_uint_32 \fIuser_chunk_cache_max\fP\fB);\fP + +\fBvoid png_set_compression_level (png_structp \fP\fIpng_ptr\fP\fB, int \fIlevel\fP\fB);\fP + +\fBvoid png_set_compression_mem_level (png_structp \fP\fIpng_ptr\fP\fB, int \fImem_level\fP\fB);\fP + +\fBvoid png_set_compression_method (png_structp \fP\fIpng_ptr\fP\fB, int \fImethod\fP\fB);\fP + +\fBvoid png_set_compression_strategy (png_structp \fP\fIpng_ptr\fP\fB, int \fIstrategy\fP\fB);\fP + +\fBvoid png_set_compression_window_bits (png_structp \fP\fIpng_ptr\fP\fB, int \fIwindow_bits\fP\fB);\fP + +\fBvoid png_set_crc_action (png_structp \fP\fIpng_ptr\fP\fB, int \fP\fIcrit_action\fP\fB, int \fIancil_action\fP\fB);\fP + +\fBvoid png_set_error_fn (png_structp \fP\fIpng_ptr\fP\fB, png_voidp \fP\fIerror_ptr\fP\fB, png_error_ptr \fP\fIerror_fn\fP\fB, png_error_ptr \fIwarning_fn\fP\fB);\fP + +\fBvoid png_set_expand (png_structp \fIpng_ptr\fP\fB);\fP + +\fBvoid png_set_expand_16 (png_structp \fIpng_ptr\fP\fB);\fP + +\fBvoid png_set_expand_gray_1_2_4_to_8 (png_structp \fIpng_ptr\fP\fB);\fP + +\fBvoid png_set_filler (png_structp \fP\fIpng_ptr\fP\fB, png_uint_32 \fP\fIfiller\fP\fB, int \fIflags\fP\fB);\fP + +\fBvoid png_set_filter (png_structp \fP\fIpng_ptr\fP\fB, int \fP\fImethod\fP\fB, int \fIfilters\fP\fB);\fP + +\fBvoid png_set_filter_heuristics (png_structp \fP\fIpng_ptr\fP\fB, int \fP\fIheuristic_method\fP\fB, int \fP\fInum_weights\fP\fB, png_doublep \fP\fIfilter_weights\fP\fB, png_doublep \fIfilter_costs\fP\fB);\fP + +\fBvoid png_set_filter_heuristics_fixed (png_structp \fP\fIpng_ptr\fP\fB, int \fP\fIheuristic_method\fP\fB, int \fP\fInum_weights\fP\fB, png_fixed_point_p \fP\fIfilter_weights\fP\fB, png_fixed_point_p \fIfilter_costs\fP\fB);\fP + +\fBvoid png_set_flush (png_structp \fP\fIpng_ptr\fP\fB, int \fInrows\fP\fB);\fP + +\fBvoid png_set_gamma (png_structp \fP\fIpng_ptr\fP\fB, double \fP\fIscreen_gamma\fP\fB, double \fIdefault_file_gamma\fP\fB);\fP + +\fBvoid png_set_gamma_fixed (png_structp \fP\fIpng_ptr\fP\fB, png_uint_32 \fP\fIscreen_gamma\fP\fB, png_uint_32 \fIdefault_file_gamma\fP\fB);\fP + +\fBvoid png_set_gAMA (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, double \fIfile_gamma\fP\fB);\fP + +\fBvoid png_set_gAMA_fixed (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_uint_32 \fIfile_gamma\fP\fB);\fP + +\fBvoid png_set_gray_1_2_4_to_8 (png_structp \fIpng_ptr\fP\fB);\fP + +\fBvoid png_set_gray_to_rgb (png_structp \fIpng_ptr\fP\fB);\fP + +\fBvoid png_set_hIST (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_uint_16p \fIhist\fP\fB);\fP + +\fBvoid png_set_iCCP (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_const_charp \fP\fIname\fP\fB, int \fP\fIcompression_type\fP\fB, png_const_bytep \fP\fIprofile\fP\fB, png_uint_32 \fIproflen\fP\fB);\fP + +\fBint png_set_interlace_handling (png_structp \fIpng_ptr\fP\fB);\fP + +\fBvoid png_set_invalid (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, int \fImask\fP\fB);\fP + +\fBvoid png_set_invert_alpha (png_structp \fIpng_ptr\fP\fB);\fP + +\fBvoid png_set_invert_mono (png_structp \fIpng_ptr\fP\fB);\fP + +\fBvoid png_set_IHDR (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_uint_32 \fP\fIwidth\fP\fB, png_uint_32 \fP\fIheight\fP\fB, int \fP\fIbit_depth\fP\fB, int \fP\fIcolor_type\fP\fB, int \fP\fIinterlace_type\fP\fB, int \fP\fIcompression_type\fP\fB, int \fIfilter_type\fP\fB);\fP + +\fBvoid png_set_keep_unknown_chunks (png_structp \fP\fIpng_ptr\fP\fB, int \fP\fIkeep\fP\fB, png_bytep \fP\fIchunk_list\fP\fB, int \fInum_chunks\fP\fB);\fP + +\fBjmp_buf* png_set_longjmp_fn (png_structp \fP\fIpng_ptr\fP\fB, png_longjmp_ptr \fP\fIlongjmp_fn\fP\fB, size_t \fIjmp_buf_size\fP\fB);\fP + +\fBvoid png_set_chunk_malloc_max (png_structp \fP\fIpng_ptr\fP\fB, png_alloc_size_t \fIuser_chunk_cache_max\fP\fB);\fP + +\fBvoid png_set_compression_buffer_size (png_structp \fP\fIpng_ptr\fP\fB, png_uint_32 \fIsize\fP\fB);\fP + +\fBvoid png_set_mem_fn (png_structp \fP\fIpng_ptr\fP\fB, png_voidp \fP\fImem_ptr\fP\fB, png_malloc_ptr \fP\fImalloc_fn\fP\fB, png_free_ptr \fIfree_fn\fP\fB);\fP + +\fBvoid png_set_oFFs (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_uint_32 \fP\fIoffset_x\fP\fB, png_uint_32 \fP\fIoffset_y\fP\fB, int \fIunit_type\fP\fB);\fP + +\fBvoid png_set_packing (png_structp \fIpng_ptr\fP\fB);\fP + +\fBvoid png_set_packswap (png_structp \fIpng_ptr\fP\fB);\fP + +\fBvoid png_set_palette_to_rgb (png_structp \fIpng_ptr\fP\fB);\fP + +\fBvoid png_set_pCAL (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_charp \fP\fIpurpose\fP\fB, png_int_32 \fP\fIX0\fP\fB, png_int_32 \fP\fIX1\fP\fB, int \fP\fItype\fP\fB, int \fP\fInparams\fP\fB, png_charp \fP\fIunits\fP\fB, png_charpp \fIparams\fP\fB);\fP + +\fBvoid png_set_pHYs (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_uint_32 \fP\fIres_x\fP\fB, png_uint_32 \fP\fIres_y\fP\fB, int \fIunit_type\fP\fB);\fP + +\fBvoid png_set_progressive_read_fn (png_structp \fP\fIpng_ptr\fP\fB, png_voidp \fP\fIprogressive_ptr\fP\fB, png_progressive_info_ptr \fP\fIinfo_fn\fP\fB, png_progressive_row_ptr \fP\fIrow_fn\fP\fB, png_progressive_end_ptr \fIend_fn\fP\fB);\fP + +\fBvoid png_set_PLTE (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_colorp \fP\fIpalette\fP\fB, int \fInum_palette\fP\fB);\fP + +\fBvoid png_set_quantize (png_structp \fP\fIpng_ptr\fP\fB, png_colorp \fP\fIpalette\fP\fB, int \fP\fInum_palette\fP\fB, int \fP\fImaximum_colors\fP\fB, png_uint_16p \fP\fIhistogram\fP\fB, int \fIfull_quantize\fP\fB);\fP + +\fBvoid png_set_read_fn (png_structp \fP\fIpng_ptr\fP\fB, png_voidp \fP\fIio_ptr\fP\fB, png_rw_ptr \fIread_data_fn\fP\fB);\fP + +\fBvoid png_set_read_status_fn (png_structp \fP\fIpng_ptr\fP\fB, png_read_status_ptr \fIread_row_fn\fP\fB);\fP + +\fBvoid png_set_read_user_chunk_fn (png_structp \fP\fIpng_ptr\fP\fB, png_voidp \fP\fIuser_chunk_ptr\fP\fB, png_user_chunk_ptr \fIread_user_chunk_fn\fP\fB);\fP + +\fBvoid png_set_read_user_transform_fn (png_structp \fP\fIpng_ptr\fP\fB, png_user_transform_ptr \fIread_user_transform_fn\fP\fB);\fP + +\fBvoid png_set_rgb_to_gray (png_structp \fP\fIpng_ptr\fP\fB, int \fP\fIerror_action\fP\fB, double \fP\fIred\fP\fB, double \fIgreen\fP\fB);\fP + +\fBvoid png_set_rgb_to_gray_fixed (png_structp \fP\fIpng_ptr\fP\fB, int error_action png_uint_32 \fP\fIred\fP\fB, png_uint_32 \fIgreen\fP\fB);\fP + +\fBvoid png_set_rows (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_bytepp \fIrow_pointers\fP\fB);\fP + +\fBvoid png_set_sBIT (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_color_8p \fIsig_bit\fP\fB);\fP + +\fBvoid png_set_sCAL (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, int \fP\fIunit\fP\fB, double \fP\fIwidth\fP\fB, double \fIheight\fP\fB);\fP + +\fBvoid png_set_sCAL_fixed (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, int \fP\fIunit\fP\fB, png_fixed_point \fP\fIwidth\fP\fB, png_fixed_point \fIheight\fP\fB);\fP + +\fBvoid png_set_sCAL_s (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, int \fP\fIunit\fP\fB, png_charp \fP\fIwidth\fP\fB, png_charp \fIheight\fP\fB);\fP + +\fBvoid png_set_scale_16 (png_structp \fIpng_ptr\fP\fB);\fP + +\fBvoid png_set_shift (png_structp \fP\fIpng_ptr\fP\fB, png_color_8p \fItrue_bits\fP\fB);\fP + +\fBvoid png_set_sig_bytes (png_structp \fP\fIpng_ptr\fP\fB, int \fInum_bytes\fP\fB);\fP + +\fBvoid png_set_sPLT (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_spalette_p \fP\fIsplt_ptr\fP\fB, int \fInum_spalettes\fP\fB);\fP + +\fBvoid png_set_sRGB (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, int \fIsrgb_intent\fP\fB);\fP + +\fBvoid png_set_sRGB_gAMA_and_cHRM (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, int \fIsrgb_intent\fP\fB);\fP + +\fBvoid png_set_strip_16 (png_structp \fIpng_ptr\fP\fB);\fP + +\fBvoid png_set_strip_alpha (png_structp \fIpng_ptr\fP\fB);\fP + +\fBvoid png_set_strip_error_numbers (png_structp \fP\fIpng_ptr\fP\fB, png_uint_32 \fIstrip_mode\fP\fB);\fP + +\fBvoid png_set_swap (png_structp \fIpng_ptr\fP\fB);\fP + +\fBvoid png_set_swap_alpha (png_structp \fIpng_ptr\fP\fB);\fP + +\fBvoid png_set_text (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_textp \fP\fItext_ptr\fP\fB, int \fInum_text\fP\fB);\fP + +\fBvoid png_set_text_compression_level (png_structp \fP\fIpng_ptr\fP\fB, int \fIlevel\fP\fB);\fP + +\fBvoid png_set_text_compression_mem_level (png_structp \fP\fIpng_ptr\fP\fB, int \fImem_level\fP\fB);\fP + +\fBvoid png_set_text_compression_strategy (png_structp \fP\fIpng_ptr\fP\fB, int \fIstrategy\fP\fB);\fP + +\fBvoid png_set_text_compression_window_bits (png_structp \fP\fIpng_ptr\fP\fB, int \fIwindow_bits\fP\fB);\fP + +\fBvoid \fP\fIpng_set_text_compression_method\fP\fB, (png_structp \fP\fIpng_ptr\fP\fB, int \fImethod)\fP\fB);\fP + +\fBvoid png_set_tIME (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_timep \fImod_time\fP\fB);\fP + +\fBvoid png_set_tRNS (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_bytep \fP\fItrans_alpha\fP\fB, int \fP\fInum_trans\fP\fB, png_color_16p \fItrans_color\fP\fB);\fP + +\fBvoid png_set_tRNS_to_alpha (png_structp \fIpng_ptr\fP\fB);\fP + +\fBpng_uint_32 png_set_unknown_chunks (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_unknown_chunkp \fP\fIunknowns\fP\fB, int \fP\fInum\fP\fB, int \fIlocation\fP\fB);\fP + +\fBvoid png_set_unknown_chunk_location (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, int \fP\fIchunk\fP\fB, int \fIlocation\fP\fB);\fP + +\fBvoid png_set_user_limits (png_structp \fP\fIpng_ptr\fP\fB, png_uint_32 \fP\fIuser_width_max\fP\fB, png_uint_32 \fIuser_height_max\fP\fB);\fP + +\fBvoid png_set_user_transform_info (png_structp \fP\fIpng_ptr\fP\fB, png_voidp \fP\fIuser_transform_ptr\fP\fB, int \fP\fIuser_transform_depth\fP\fB, int \fIuser_transform_channels\fP\fB);\fP + +\fBvoid png_set_write_fn (png_structp \fP\fIpng_ptr\fP\fB, png_voidp \fP\fIio_ptr\fP\fB, png_rw_ptr \fP\fIwrite_data_fn\fP\fB, png_flush_ptr \fIoutput_flush_fn\fP\fB);\fP + +\fBvoid png_set_write_status_fn (png_structp \fP\fIpng_ptr\fP\fB, png_write_status_ptr \fIwrite_row_fn\fP\fB);\fP + +\fBvoid png_set_write_user_transform_fn (png_structp \fP\fIpng_ptr\fP\fB, png_user_transform_ptr \fIwrite_user_transform_fn\fP\fB);\fP + +\fBint png_sig_cmp (png_bytep \fP\fIsig\fP\fB, png_size_t \fP\fIstart\fP\fB, png_size_t \fInum_to_check\fP\fB);\fP + +\fBvoid png_start_read_image (png_structp \fIpng_ptr\fP\fB);\fP + +\fBvoid png_warning (png_structp \fP\fIpng_ptr\fP\fB, png_const_charp \fImessage\fP\fB);\fP + +\fBvoid png_write_chunk (png_structp \fP\fIpng_ptr\fP\fB, png_bytep \fP\fIchunk_name\fP\fB, png_bytep \fP\fIdata\fP\fB, png_size_t \fIlength\fP\fB);\fP + +\fBvoid png_write_chunk_data (png_structp \fP\fIpng_ptr\fP\fB, png_bytep \fP\fIdata\fP\fB, png_size_t \fIlength\fP\fB);\fP + +\fBvoid png_write_chunk_end (png_structp \fIpng_ptr\fP\fB);\fP + +\fBvoid png_write_chunk_start (png_structp \fP\fIpng_ptr\fP\fB, png_bytep \fP\fIchunk_name\fP\fB, png_uint_32 \fIlength\fP\fB);\fP + +\fBvoid png_write_end (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fIinfo_ptr\fP\fB);\fP + +\fBvoid png_write_flush (png_structp \fIpng_ptr\fP\fB);\fP + +\fBvoid png_write_image (png_structp \fP\fIpng_ptr\fP\fB, png_bytepp \fIimage\fP\fB);\fP + +\fBvoid png_write_info (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fIinfo_ptr\fP\fB);\fP + +\fBvoid png_write_info_before_PLTE (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fIinfo_ptr\fP\fB);\fP + +\fBvoid png_write_png (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, int \fP\fItransforms\fP\fB, png_voidp \fIparams\fP\fB);\fP + +\fBvoid png_write_row (png_structp \fP\fIpng_ptr\fP\fB, png_bytep \fIrow\fP\fB);\fP + +\fBvoid png_write_rows (png_structp \fP\fIpng_ptr\fP\fB, png_bytepp \fP\fIrow\fP\fB, png_uint_32 \fInum_rows\fP\fB);\fP + +\fBvoid png_write_sig (png_structp \fIpng_ptr\fP\fB);\fP + +.SH DESCRIPTION +The +.I libpng +library supports encoding, decoding, and various manipulations of +the Portable Network Graphics (PNG) format image files. It uses the +.IR zlib(3) +compression library. +Following is a copy of the libpng-manual.txt file that accompanies libpng. +.SH LIBPNG.TXT +libpng-manual.txt - A description on how to use and modify libpng + + libpng version 1.6.12 - June 12, 2014 + Updated and distributed by Glenn Randers-Pehrson + + Copyright (c) 1998-2014 Glenn Randers-Pehrson + + This document is released under the libpng license. + For conditions of distribution and use, see the disclaimer + and license in png.h + + Based on: + + libpng versions 0.97, January 1998, through 1.6.12 - June 12, 2014 + Updated and distributed by Glenn Randers-Pehrson + Copyright (c) 1998-2014 Glenn Randers-Pehrson + + libpng 1.0 beta 6 - version 0.96 - May 28, 1997 + Updated and distributed by Andreas Dilger + Copyright (c) 1996, 1997 Andreas Dilger + + libpng 1.0 beta 2 - version 0.88 - January 26, 1996 + For conditions of distribution and use, see copyright + notice in png.h. Copyright (c) 1995, 1996 Guy Eric + Schalnat, Group 42, Inc. + + Updated/rewritten per request in the libpng FAQ + Copyright (c) 1995, 1996 Frank J. T. Wojcik + December 18, 1995 & January 20, 1996 + + TABLE OF CONTENTS + + I. Introduction + II. Structures + III. Reading + IV. Writing + V. Simplified API + VI. Modifying/Customizing libpng + VII. MNG support + VIII. Changes to Libpng from version 0.88 + IX. Changes to Libpng from version 1.0.x to 1.2.x + X. Changes to Libpng from version 1.0.x/1.2.x to 1.4.x + XI. Changes to Libpng from version 1.4.x to 1.5.x + XII. Changes to Libpng from version 1.5.x to 1.6.x + XIII. Detecting libpng + XIV. Source code repository + XV. Coding style + XVI. Y2K Compliance in libpng + +.SH I. Introduction + +This file describes how to use and modify the PNG reference library +(known as libpng) for your own use. In addition to this +file, example.c is a good starting point for using the library, as +it is heavily commented and should include everything most people +will need. We assume that libpng is already installed; see the +INSTALL file for instructions on how to configure and install libpng. + +For examples of libpng usage, see the files "example.c", "pngtest.c", +and the files in the "contrib" directory, all of which are included in +the libpng distribution. + +Libpng was written as a companion to the PNG specification, as a way +of reducing the amount of time and effort it takes to support the PNG +file format in application programs. + +The PNG specification (second edition), November 2003, is available as +a W3C Recommendation and as an ISO Standard (ISO/IEC 15948:2004 (E)) at +. It is technically equivalent +to the PNG specification (second edition) but has some additional material. + +The PNG-1.0 specification is available +as RFC 2083 and as a +W3C Recommendation . + +Some additional chunks are described in the special-purpose public chunks +documents at . + +Other information +about PNG, and the latest version of libpng, can be found at the PNG home +page, . + +Most users will not have to modify the library significantly; advanced +users may want to modify it more. All attempts were made to make it as +complete as possible, while keeping the code easy to understand. +Currently, this library only supports C. Support for other languages +is being considered. + +Libpng has been designed to handle multiple sessions at one time, +to be easily modifiable, to be portable to the vast majority of +machines (ANSI, K&R, 16-, 32-, and 64-bit) available, and to be easy +to use. The ultimate goal of libpng is to promote the acceptance of +the PNG file format in whatever way possible. While there is still +work to be done (see the TODO file), libpng should cover the +majority of the needs of its users. + +Libpng uses zlib for its compression and decompression of PNG files. +Further information about zlib, and the latest version of zlib, can +be found at the zlib home page, . +The zlib compression utility is a general purpose utility that is +useful for more than PNG files, and can be used without libpng. +See the documentation delivered with zlib for more details. +You can usually find the source files for the zlib utility wherever you +find the libpng source files. + +Libpng is thread safe, provided the threads are using different +instances of the structures. Each thread should have its own +png_struct and png_info instances, and thus its own image. +Libpng does not protect itself against two threads using the +same instance of a structure. + +.SH II. Structures + +There are two main structures that are important to libpng, png_struct +and png_info. Both are internal structures that are no longer exposed +in the libpng interface (as of libpng 1.5.0). + +The png_info structure is designed to provide information about the +PNG file. At one time, the fields of png_info were intended to be +directly accessible to the user. However, this tended to cause problems +with applications using dynamically loaded libraries, and as a result +a set of interface functions for png_info (the png_get_*() and png_set_*() +functions) was developed, and direct access to the png_info fields was +deprecated.. + +The png_struct structure is the object used by the library to decode a +single image. As of 1.5.0 this structure is also not exposed. + +Almost all libpng APIs require a pointer to a png_struct as the first argument. +Many (in particular the png_set and png_get APIs) also require a pointer +to png_info as the second argument. Some application visible macros +defined in png.h designed for basic data access (reading and writing +integers in the PNG format) don't take a png_info pointer, but it's almost +always safe to assume that a (png_struct*) has to be passed to call an API +function. + +You can have more than one png_info structure associated with an image, +as illustrated in pngtest.c, one for information valid prior to the +IDAT chunks and another (called "end_info" below) for things after them. + +The png.h header file is an invaluable reference for programming with libpng. +And while I'm on the topic, make sure you include the libpng header file: + +#include + +and also (as of libpng-1.5.0) the zlib header file, if you need it: + +#include + +.SS Types + +The png.h header file defines a number of integral types used by the +APIs. Most of these are fairly obvious; for example types corresponding +to integers of particular sizes and types for passing color values. + +One exception is how non-integral numbers are handled. For application +convenience most APIs that take such numbers have C (double) arguments; +however, internally PNG, and libpng, use 32 bit signed integers and encode +the value by multiplying by 100,000. As of libpng 1.5.0 a convenience +macro PNG_FP_1 is defined in png.h along with a type (png_fixed_point) +which is simply (png_int_32). + +All APIs that take (double) arguments also have a matching API that +takes the corresponding fixed point integer arguments. The fixed point +API has the same name as the floating point one with "_fixed" appended. +The actual range of values permitted in the APIs is frequently less than +the full range of (png_fixed_point) (\-21474 to +21474). When APIs require +a non-negative argument the type is recorded as png_uint_32 above. Consult +the header file and the text below for more information. + +Special care must be take with sCAL chunk handling because the chunk itself +uses non-integral values encoded as strings containing decimal floating point +numbers. See the comments in the header file. + +.SS Configuration + +The main header file function declarations are frequently protected by C +preprocessing directives of the form: + + #ifdef PNG_feature_SUPPORTED + declare-function + #endif + ... + #ifdef PNG_feature_SUPPORTED + use-function + #endif + +The library can be built without support for these APIs, although a +standard build will have all implemented APIs. Application programs +should check the feature macros before using an API for maximum +portability. From libpng 1.5.0 the feature macros set during the build +of libpng are recorded in the header file "pnglibconf.h" and this file +is always included by png.h. + +If you don't need to change the library configuration from the default, skip to +the next section ("Reading"). + +Notice that some of the makefiles in the 'scripts' directory and (in 1.5.0) all +of the build project files in the 'projects' directory simply copy +scripts/pnglibconf.h.prebuilt to pnglibconf.h. This means that these build +systems do not permit easy auto-configuration of the library - they only +support the default configuration. + +The easiest way to make minor changes to the libpng configuration when +auto-configuration is supported is to add definitions to the command line +using (typically) CPPFLAGS. For example: + +CPPFLAGS=\-DPNG_NO_FLOATING_ARITHMETIC + +will change the internal libpng math implementation for gamma correction and +other arithmetic calculations to fixed point, avoiding the need for fast +floating point support. The result can be seen in the generated pnglibconf.h - +make sure it contains the changed feature macro setting. + +If you need to make more extensive configuration changes - more than one or two +feature macro settings - you can either add \-DPNG_USER_CONFIG to the build +command line and put a list of feature macro settings in pngusr.h or you can set +DFA_XTRA (a makefile variable) to a file containing the same information in the +form of 'option' settings. + +A. Changing pnglibconf.h + +A variety of methods exist to build libpng. Not all of these support +reconfiguration of pnglibconf.h. To reconfigure pnglibconf.h it must either be +rebuilt from scripts/pnglibconf.dfa using awk or it must be edited by hand. + +Hand editing is achieved by copying scripts/pnglibconf.h.prebuilt to +pnglibconf.h and changing the lines defining the supported features, paying +very close attention to the 'option' information in scripts/pnglibconf.dfa +that describes those features and their requirements. This is easy to get +wrong. + +B. Configuration using DFA_XTRA + +Rebuilding from pnglibconf.dfa is easy if a functioning 'awk', or a later +variant such as 'nawk' or 'gawk', is available. The configure build will +automatically find an appropriate awk and build pnglibconf.h. +The scripts/pnglibconf.mak file contains a set of make rules for doing the +same thing if configure is not used, and many of the makefiles in the scripts +directory use this approach. + +When rebuilding simply write a new file containing changed options and set +DFA_XTRA to the name of this file. This causes the build to append the new file +to the end of scripts/pnglibconf.dfa. The pngusr.dfa file should contain lines +of the following forms: + +everything = off + +This turns all optional features off. Include it at the start of pngusr.dfa to +make it easier to build a minimal configuration. You will need to turn at least +some features on afterward to enable either reading or writing code, or both. + +option feature on +option feature off + +Enable or disable a single feature. This will automatically enable other +features required by a feature that is turned on or disable other features that +require a feature which is turned off. Conflicting settings will cause an error +message to be emitted by awk. + +setting feature default value + +Changes the default value of setting 'feature' to 'value'. There are a small +number of settings listed at the top of pnglibconf.h, they are documented in the +source code. Most of these values have performance implications for the library +but most of them have no visible effect on the API. Some can also be overridden +from the API. + +This method of building a customized pnglibconf.h is illustrated in +contrib/pngminim/*. See the "$(PNGCONF):" target in the makefile and +pngusr.dfa in these directories. + +C. Configuration using PNG_USER_CONFIG + +If \-DPNG_USER_CONFIG is added to the CPPFLAGS when pnglibconf.h is built, +the file pngusr.h will automatically be included before the options in +scripts/pnglibconf.dfa are processed. Your pngusr.h file should contain only +macro definitions turning features on or off or setting settings. + +Apart from the global setting "everything = off" all the options listed above +can be set using macros in pngusr.h: + +#define PNG_feature_SUPPORTED + +is equivalent to: + +option feature on + +#define PNG_NO_feature + +is equivalent to: + +option feature off + +#define PNG_feature value + +is equivalent to: + +setting feature default value + +Notice that in both cases, pngusr.dfa and pngusr.h, the contents of the +pngusr file you supply override the contents of scripts/pnglibconf.dfa + +If confusing or incomprehensible behavior results it is possible to +examine the intermediate file pnglibconf.dfn to find the full set of +dependency information for each setting and option. Simply locate the +feature in the file and read the C comments that precede it. + +This method is also illustrated in the contrib/pngminim/* makefiles and +pngusr.h. + +.SH III. Reading + +We'll now walk you through the possible functions to call when reading +in a PNG file sequentially, briefly explaining the syntax and purpose +of each one. See example.c and png.h for more detail. While +progressive reading is covered in the next section, you will still +need some of the functions discussed in this section to read a PNG +file. + +.SS Setup + +You will want to do the I/O initialization(*) before you get into libpng, +so if it doesn't work, you don't have much to undo. Of course, you +will also want to insure that you are, in fact, dealing with a PNG +file. Libpng provides a simple check to see if a file is a PNG file. +To use it, pass in the first 1 to 8 bytes of the file to the function +png_sig_cmp(), and it will return 0 (false) if the bytes match the +corresponding bytes of the PNG signature, or nonzero (true) otherwise. +Of course, the more bytes you pass in, the greater the accuracy of the +prediction. + +If you are intending to keep the file pointer open for use in libpng, +you must ensure you don't read more than 8 bytes from the beginning +of the file, and you also have to make a call to png_set_sig_bytes_read() +with the number of bytes you read from the beginning. Libpng will +then only check the bytes (if any) that your program didn't read. + +(*): If you are not using the standard I/O functions, you will need +to replace them with custom functions. See the discussion under +Customizing libpng. + + + FILE *fp = fopen(file_name, "rb"); + if (!fp) + { + return (ERROR); + } + + fread(header, 1, number, fp); + is_png = !png_sig_cmp(header, 0, number); + + if (!is_png) + { + return (NOT_PNG); + } + + +Next, png_struct and png_info need to be allocated and initialized. In +order to ensure that the size of these structures is correct even with a +dynamically linked libpng, there are functions to initialize and +allocate the structures. We also pass the library version, optional +pointers to error handling functions, and a pointer to a data struct for +use by the error functions, if necessary (the pointer and functions can +be NULL if the default error handlers are to be used). See the section +on Changes to Libpng below regarding the old initialization functions. +The structure allocation functions quietly return NULL if they fail to +create the structure, so your application should check for that. + + png_structp png_ptr = png_create_read_struct + (PNG_LIBPNG_VER_STRING, (png_voidp)user_error_ptr, + user_error_fn, user_warning_fn); + + if (!png_ptr) + return (ERROR); + + png_infop info_ptr = png_create_info_struct(png_ptr); + + if (!info_ptr) + { + png_destroy_read_struct(&png_ptr, + (png_infopp)NULL, (png_infopp)NULL); + return (ERROR); + } + +If you want to use your own memory allocation routines, +use a libpng that was built with PNG_USER_MEM_SUPPORTED defined, and use +png_create_read_struct_2() instead of png_create_read_struct(): + + png_structp png_ptr = png_create_read_struct_2 + (PNG_LIBPNG_VER_STRING, (png_voidp)user_error_ptr, + user_error_fn, user_warning_fn, (png_voidp) + user_mem_ptr, user_malloc_fn, user_free_fn); + +The error handling routines passed to png_create_read_struct() +and the memory alloc/free routines passed to png_create_struct_2() +are only necessary if you are not using the libpng supplied error +handling and memory alloc/free functions. + +When libpng encounters an error, it expects to longjmp back +to your routine. Therefore, you will need to call setjmp and pass +your png_jmpbuf(png_ptr). If you read the file from different +routines, you will need to update the longjmp buffer every time you enter +a new routine that will call a png_*() function. + +See your documentation of setjmp/longjmp for your compiler for more +information on setjmp/longjmp. See the discussion on libpng error +handling in the Customizing Libpng section below for more information +on the libpng error handling. If an error occurs, and libpng longjmp's +back to your setjmp, you will want to call png_destroy_read_struct() to +free any memory. + + if (setjmp(png_jmpbuf(png_ptr))) + { + png_destroy_read_struct(&png_ptr, &info_ptr, + &end_info); + fclose(fp); + return (ERROR); + } + +Pass (png_infopp)NULL instead of &end_info if you didn't create +an end_info structure. + +If you would rather avoid the complexity of setjmp/longjmp issues, +you can compile libpng with PNG_NO_SETJMP, in which case +errors will result in a call to PNG_ABORT() which defaults to abort(). + +You can #define PNG_ABORT() to a function that does something +more useful than abort(), as long as your function does not +return. + +Now you need to set up the input code. The default for libpng is to +use the C function fread(). If you use this, you will need to pass a +valid FILE * in the function png_init_io(). Be sure that the file is +opened in binary mode. If you wish to handle reading data in another +way, you need not call the png_init_io() function, but you must then +implement the libpng I/O methods discussed in the Customizing Libpng +section below. + + png_init_io(png_ptr, fp); + +If you had previously opened the file and read any of the signature from +the beginning in order to see if this was a PNG file, you need to let +libpng know that there are some bytes missing from the start of the file. + + png_set_sig_bytes(png_ptr, number); + +You can change the zlib compression buffer size to be used while +reading compressed data with + + png_set_compression_buffer_size(png_ptr, buffer_size); + +where the default size is 8192 bytes. Note that the buffer size +is changed immediately and the buffer is reallocated immediately, +instead of setting a flag to be acted upon later. + +If you want CRC errors to be handled in a different manner than +the default, use + + png_set_crc_action(png_ptr, crit_action, ancil_action); + +The values for png_set_crc_action() say how libpng is to handle CRC errors in +ancillary and critical chunks, and whether to use the data contained +therein. Note that it is impossible to "discard" data in a critical +chunk. + +Choices for (int) crit_action are + PNG_CRC_DEFAULT 0 error/quit + PNG_CRC_ERROR_QUIT 1 error/quit + PNG_CRC_WARN_USE 3 warn/use data + PNG_CRC_QUIET_USE 4 quiet/use data + PNG_CRC_NO_CHANGE 5 use the current value + +Choices for (int) ancil_action are + PNG_CRC_DEFAULT 0 error/quit + PNG_CRC_ERROR_QUIT 1 error/quit + PNG_CRC_WARN_DISCARD 2 warn/discard data + PNG_CRC_WARN_USE 3 warn/use data + PNG_CRC_QUIET_USE 4 quiet/use data + PNG_CRC_NO_CHANGE 5 use the current value + +.SS Setting up callback code + +You can set up a callback function to handle any unknown chunks in the +input stream. You must supply the function + + read_chunk_callback(png_structp png_ptr, + png_unknown_chunkp chunk); + { + /* The unknown chunk structure contains your + chunk data, along with similar data for any other + unknown chunks: */ + + png_byte name[5]; + png_byte *data; + png_size_t size; + + /* Note that libpng has already taken care of + the CRC handling */ + + /* put your code here. Search for your chunk in the + unknown chunk structure, process it, and return one + of the following: */ + + return (\-n); /* chunk had an error */ + return (0); /* did not recognize */ + return (n); /* success */ + } + +(You can give your function another name that you like instead of +"read_chunk_callback") + +To inform libpng about your function, use + + png_set_read_user_chunk_fn(png_ptr, user_chunk_ptr, + read_chunk_callback); + +This names not only the callback function, but also a user pointer that +you can retrieve with + + png_get_user_chunk_ptr(png_ptr); + +If you call the png_set_read_user_chunk_fn() function, then all unknown +chunks which the callback does not handle will be saved when read. You can +cause them to be discarded by returning '1' ("handled") instead of '0'. This +behavior will change in libpng 1.7 and the default handling set by the +png_set_keep_unknown_chunks() function, described below, will be used when the +callback returns 0. If you want the existing behavior you should set the global +default to PNG_HANDLE_CHUNK_IF_SAFE now; this is compatible with all current +versions of libpng and with 1.7. Libpng 1.6 issues a warning if you keep the +default, or PNG_HANDLE_CHUNK_NEVER, and the callback returns 0. + +At this point, you can set up a callback function that will be +called after each row has been read, which you can use to control +a progress meter or the like. It's demonstrated in pngtest.c. +You must supply a function + + void read_row_callback(png_structp png_ptr, + png_uint_32 row, int pass); + { + /* put your code here */ + } + +(You can give it another name that you like instead of "read_row_callback") + +To inform libpng about your function, use + + png_set_read_status_fn(png_ptr, read_row_callback); + +When this function is called the row has already been completely processed and +the 'row' and 'pass' refer to the next row to be handled. For the +non-interlaced case the row that was just handled is simply one less than the +passed in row number, and pass will always be 0. For the interlaced case the +same applies unless the row value is 0, in which case the row just handled was +the last one from one of the preceding passes. Because interlacing may skip a +pass you cannot be sure that the preceding pass is just 'pass\-1', if you really +need to know what the last pass is record (row,pass) from the callback and use +the last recorded value each time. + +As with the user transform you can find the output row using the +PNG_ROW_FROM_PASS_ROW macro. + +.SS Unknown-chunk handling + +Now you get to set the way the library processes unknown chunks in the +input PNG stream. Both known and unknown chunks will be read. Normal +behavior is that known chunks will be parsed into information in +various info_ptr members while unknown chunks will be discarded. This +behavior can be wasteful if your application will never use some known +chunk types. To change this, you can call: + + png_set_keep_unknown_chunks(png_ptr, keep, + chunk_list, num_chunks); + + keep - 0: default unknown chunk handling + 1: ignore; do not keep + 2: keep only if safe-to-copy + 3: keep even if unsafe-to-copy + + You can use these definitions: + PNG_HANDLE_CHUNK_AS_DEFAULT 0 + PNG_HANDLE_CHUNK_NEVER 1 + PNG_HANDLE_CHUNK_IF_SAFE 2 + PNG_HANDLE_CHUNK_ALWAYS 3 + + chunk_list - list of chunks affected (a byte string, + five bytes per chunk, NULL or '\0' if + num_chunks is positive; ignored if + numchunks <= 0). + + num_chunks - number of chunks affected; if 0, all + unknown chunks are affected. If positive, + only the chunks in the list are affected, + and if negative all unknown chunks and + all known chunks except for the IHDR, + PLTE, tRNS, IDAT, and IEND chunks are + affected. + +Unknown chunks declared in this way will be saved as raw data onto a +list of png_unknown_chunk structures. If a chunk that is normally +known to libpng is named in the list, it will be handled as unknown, +according to the "keep" directive. If a chunk is named in successive +instances of png_set_keep_unknown_chunks(), the final instance will +take precedence. The IHDR and IEND chunks should not be named in +chunk_list; if they are, libpng will process them normally anyway. +If you know that your application will never make use of some particular +chunks, use PNG_HANDLE_CHUNK_NEVER (or 1) as demonstrated below. + +Here is an example of the usage of png_set_keep_unknown_chunks(), +where the private "vpAg" chunk will later be processed by a user chunk +callback function: + + png_byte vpAg[5]={118, 112, 65, 103, (png_byte) '\0'}; + + #if defined(PNG_UNKNOWN_CHUNKS_SUPPORTED) + png_byte unused_chunks[]= + { + 104, 73, 83, 84, (png_byte) '\0', /* hIST */ + 105, 84, 88, 116, (png_byte) '\0', /* iTXt */ + 112, 67, 65, 76, (png_byte) '\0', /* pCAL */ + 115, 67, 65, 76, (png_byte) '\0', /* sCAL */ + 115, 80, 76, 84, (png_byte) '\0', /* sPLT */ + 116, 73, 77, 69, (png_byte) '\0', /* tIME */ + }; + #endif + + ... + + #if defined(PNG_UNKNOWN_CHUNKS_SUPPORTED) + /* ignore all unknown chunks + * (use global setting "2" for libpng16 and earlier): + */ + png_set_keep_unknown_chunks(read_ptr, 2, NULL, 0); + + /* except for vpAg: */ + png_set_keep_unknown_chunks(read_ptr, 2, vpAg, 1); + + /* also ignore unused known chunks: */ + png_set_keep_unknown_chunks(read_ptr, 1, unused_chunks, + (int)(sizeof unused_chunks)/5); + #endif + +.SS User limits + +The PNG specification allows the width and height of an image to be as +large as 2^(31\-1 (0x7fffffff), or about 2.147 billion rows and columns. +Since very few applications really need to process such large images, +we have imposed an arbitrary 1-million limit on rows and columns. +Larger images will be rejected immediately with a png_error() call. If +you wish to change this limit, you can use + + png_set_user_limits(png_ptr, width_max, height_max); + +to set your own limits, or use width_max = height_max = 0x7fffffffL +to allow all valid dimensions (libpng may reject some very large images +anyway because of potential buffer overflow conditions). + +You should put this statement after you create the PNG structure and +before calling png_read_info(), png_read_png(), or png_process_data(). + +When writing a PNG datastream, put this statement before calling +png_write_info() or png_write_png(). + +If you need to retrieve the limits that are being applied, use + + width_max = png_get_user_width_max(png_ptr); + height_max = png_get_user_height_max(png_ptr); + +The PNG specification sets no limit on the number of ancillary chunks +allowed in a PNG datastream. You can impose a limit on the total number +of sPLT, tEXt, iTXt, zTXt, and unknown chunks that will be stored, with + + png_set_chunk_cache_max(png_ptr, user_chunk_cache_max); + +where 0x7fffffffL means unlimited. You can retrieve this limit with + + chunk_cache_max = png_get_chunk_cache_max(png_ptr); + +You can also set a limit on the amount of memory that a compressed chunk +other than IDAT can occupy, with + + png_set_chunk_malloc_max(png_ptr, user_chunk_malloc_max); + +and you can retrieve the limit with + + chunk_malloc_max = png_get_chunk_malloc_max(png_ptr); + +Any chunks that would cause either of these limits to be exceeded will +be ignored. + +.SS Information about your system + +If you intend to display the PNG or to incorporate it in other image data you +need to tell libpng information about your display or drawing surface so that +libpng can convert the values in the image to match the display. + +From libpng-1.5.4 this information can be set before reading the PNG file +header. In earlier versions png_set_gamma() existed but behaved incorrectly if +called before the PNG file header had been read and png_set_alpha_mode() did not +exist. + +If you need to support versions prior to libpng-1.5.4 test the version number +as illustrated below using "PNG_LIBPNG_VER >= 10504" and follow the procedures +described in the appropriate manual page. + +You give libpng the encoding expected by your system expressed as a 'gamma' +value. You can also specify a default encoding for the PNG file in +case the required information is missing from the file. By default libpng +assumes that the PNG data matches your system, to keep this default call: + + png_set_gamma(png_ptr, screen_gamma, output_gamma); + +or you can use the fixed point equivalent: + + png_set_gamma_fixed(png_ptr, PNG_FP_1*screen_gamma, + PNG_FP_1*output_gamma); + +If you don't know the gamma for your system it is probably 2.2 - a good +approximation to the IEC standard for display systems (sRGB). If images are +too contrasty or washed out you got the value wrong - check your system +documentation! + +Many systems permit the system gamma to be changed via a lookup table in the +display driver, a few systems, including older Macs, change the response by +default. As of 1.5.4 three special values are available to handle common +situations: + + PNG_DEFAULT_sRGB: Indicates that the system conforms to the + IEC 61966-2-1 standard. This matches almost + all systems. + PNG_GAMMA_MAC_18: Indicates that the system is an older + (pre Mac OS 10.6) Apple Macintosh system with + the default settings. + PNG_GAMMA_LINEAR: Just the fixed point value for 1.0 - indicates + that the system expects data with no gamma + encoding. + +You would use the linear (unencoded) value if you need to process the pixel +values further because this avoids the need to decode and re-encode each +component value whenever arithmetic is performed. A lot of graphics software +uses linear values for this reason, often with higher precision component values +to preserve overall accuracy. + + +The output_gamma value expresses how to decode the output values, not how +they are encoded. The values used correspond to the normal numbers used to +describe the overall gamma of a computer display system; for example 2.2 for +an sRGB conformant system. The values are scaled by 100000 in the _fixed +version of the API (so 220000 for sRGB.) + +The inverse of the value is always used to provide a default for the PNG file +encoding if it has no gAMA chunk and if png_set_gamma() has not been called +to override the PNG gamma information. + +When the ALPHA_OPTIMIZED mode is selected the output gamma is used to encode +opaque pixels however pixels with lower alpha values are not encoded, +regardless of the output gamma setting. + +When the standard Porter Duff handling is requested with mode 1 the output +encoding is set to be linear and the output_gamma value is only relevant +as a default for input data that has no gamma information. The linear output +encoding will be overridden if png_set_gamma() is called - the results may be +highly unexpected! + +The following numbers are derived from the sRGB standard and the research +behind it. sRGB is defined to be approximated by a PNG gAMA chunk value of +0.45455 (1/2.2) for PNG. The value implicitly includes any viewing +correction required to take account of any differences in the color +environment of the original scene and the intended display environment; the +value expresses how to *decode* the image for display, not how the original +data was *encoded*. + +sRGB provides a peg for the PNG standard by defining a viewing environment. +sRGB itself, and earlier TV standards, actually use a more complex transform +(a linear portion then a gamma 2.4 power law) than PNG can express. (PNG is +limited to simple power laws.) By saying that an image for direct display on +an sRGB conformant system should be stored with a gAMA chunk value of 45455 +(11.3.3.2 and 11.3.3.5 of the ISO PNG specification) the PNG specification +makes it possible to derive values for other display systems and +environments. + +The Mac value is deduced from the sRGB based on an assumption that the actual +extra viewing correction used in early Mac display systems was implemented as +a power 1.45 lookup table. + +Any system where a programmable lookup table is used or where the behavior of +the final display device characteristics can be changed requires system +specific code to obtain the current characteristic. However this can be +difficult and most PNG gamma correction only requires an approximate value. + +By default, if png_set_alpha_mode() is not called, libpng assumes that all +values are unencoded, linear, values and that the output device also has a +linear characteristic. This is only very rarely correct - it is invariably +better to call png_set_alpha_mode() with PNG_DEFAULT_sRGB than rely on the +default if you don't know what the right answer is! + +The special value PNG_GAMMA_MAC_18 indicates an older Mac system (pre Mac OS +10.6) which used a correction table to implement a somewhat lower gamma on an +otherwise sRGB system. + +Both these values are reserved (not simple gamma values) in order to allow +more precise correction internally in the future. + +NOTE: the values can be passed to either the fixed or floating +point APIs, but the floating point API will also accept floating point +values. + +The second thing you may need to tell libpng about is how your system handles +alpha channel information. Some, but not all, PNG files contain an alpha +channel. To display these files correctly you need to compose the data onto a +suitable background, as described in the PNG specification. + +Libpng only supports composing onto a single color (using png_set_background; +see below). Otherwise you must do the composition yourself and, in this case, +you may need to call png_set_alpha_mode: + + #if PNG_LIBPNG_VER >= 10504 + png_set_alpha_mode(png_ptr, mode, screen_gamma); + #else + png_set_gamma(png_ptr, screen_gamma, 1.0/screen_gamma); + #endif + +The screen_gamma value is the same as the argument to png_set_gamma; however, +how it affects the output depends on the mode. png_set_alpha_mode() sets the +file gamma default to 1/screen_gamma, so normally you don't need to call +png_set_gamma. If you need different defaults call png_set_gamma() before +png_set_alpha_mode() - if you call it after it will override the settings made +by png_set_alpha_mode(). + +The mode is as follows: + + PNG_ALPHA_PNG: The data is encoded according to the PNG +specification. Red, green and blue, or gray, components are +gamma encoded color values and are not premultiplied by the +alpha value. The alpha value is a linear measure of the +contribution of the pixel to the corresponding final output pixel. + +You should normally use this format if you intend to perform +color correction on the color values; most, maybe all, color +correction software has no handling for the alpha channel and, +anyway, the math to handle pre-multiplied component values is +unnecessarily complex. + +Before you do any arithmetic on the component values you need +to remove the gamma encoding and multiply out the alpha +channel. See the PNG specification for more detail. It is +important to note that when an image with an alpha channel is +scaled, linear encoded, pre-multiplied component values must +be used! + +The remaining modes assume you don't need to do any further color correction or +that if you do, your color correction software knows all about alpha (it +probably doesn't!). They 'associate' the alpha with the color information by +storing color channel values that have been scaled by the alpha. The +advantage is that the color channels can be resampled (the image can be +scaled) in this form. The disadvantage is that normal practice is to store +linear, not (gamma) encoded, values and this requires 16-bit channels for +still images rather than the 8-bit channels that are just about sufficient if +gamma encoding is used. In addition all non-transparent pixel values, +including completely opaque ones, must be gamma encoded to produce the final +image. These are the 'STANDARD', 'ASSOCIATED' or 'PREMULTIPLIED' modes +described below (the latter being the two common names for associated alpha +color channels). Note that PNG files always contain non-associated color +channels; png_set_alpha_mode() with one of the modes causes the decoder to +convert the pixels to an associated form before returning them to your +application. + +Since it is not necessary to perform arithmetic on opaque color values so +long as they are not to be resampled and are in the final color space it is +possible to optimize the handling of alpha by storing the opaque pixels in +the PNG format (adjusted for the output color space) while storing partially +opaque pixels in the standard, linear, format. The accuracy required for +standard alpha composition is relatively low, because the pixels are +isolated, therefore typically the accuracy loss in storing 8-bit linear +values is acceptable. (This is not true if the alpha channel is used to +simulate transparency over large areas - use 16 bits or the PNG mode in +this case!) This is the 'OPTIMIZED' mode. For this mode a pixel is +treated as opaque only if the alpha value is equal to the maximum value. + + PNG_ALPHA_STANDARD: The data libpng produces is encoded in the +standard way assumed by most correctly written graphics software. +The gamma encoding will be removed by libpng and the +linear component values will be pre-multiplied by the +alpha channel. + +With this format the final image must be re-encoded to +match the display gamma before the image is displayed. +If your system doesn't do that, yet still seems to +perform arithmetic on the pixels without decoding them, +it is broken - check out the modes below. + +With PNG_ALPHA_STANDARD libpng always produces linear +component values, whatever screen_gamma you supply. The +screen_gamma value is, however, used as a default for +the file gamma if the PNG file has no gamma information. + +If you call png_set_gamma() after png_set_alpha_mode() you +will override the linear encoding. Instead the +pre-multiplied pixel values will be gamma encoded but +the alpha channel will still be linear. This may +actually match the requirements of some broken software, +but it is unlikely. + +While linear 8-bit data is often used it has +insufficient precision for any image with a reasonable +dynamic range. To avoid problems, and if your software +supports it, use png_set_expand_16() to force all +components to 16 bits. + + PNG_ALPHA_OPTIMIZED: This mode is the same as PNG_ALPHA_STANDARD +except that completely opaque pixels are gamma encoded according to +the screen_gamma value. Pixels with alpha less than 1.0 +will still have linear components. + +Use this format if you have control over your +compositing software and so don't do other arithmetic +(such as scaling) on the data you get from libpng. Your +compositing software can simply copy opaque pixels to +the output but still has linear values for the +non-opaque pixels. + +In normal compositing, where the alpha channel encodes +partial pixel coverage (as opposed to broad area +translucency), the inaccuracies of the 8-bit +representation of non-opaque pixels are irrelevant. + +You can also try this format if your software is broken; +it might look better. + + PNG_ALPHA_BROKEN: This is PNG_ALPHA_STANDARD; however, all component +values, including the alpha channel are gamma encoded. This is +broken because, in practice, no implementation that uses this choice +correctly undoes the encoding before handling alpha composition. Use this +choice only if other serious errors in the software or hardware you use +mandate it. In most cases of broken software or hardware the bug in the +final display manifests as a subtle halo around composited parts of the +image. You may not even perceive this as a halo; the composited part of +the image may simply appear separate from the background, as though it had +been cut out of paper and pasted on afterward. + +If you don't have to deal with bugs in software or hardware, or if you can fix +them, there are three recommended ways of using png_set_alpha_mode(): + + png_set_alpha_mode(png_ptr, PNG_ALPHA_PNG, + screen_gamma); + +You can do color correction on the result (libpng does not currently +support color correction internally). When you handle the alpha channel +you need to undo the gamma encoding and multiply out the alpha. + + png_set_alpha_mode(png_ptr, PNG_ALPHA_STANDARD, + screen_gamma); + png_set_expand_16(png_ptr); + +If you are using the high level interface, don't call png_set_expand_16(); +instead pass PNG_TRANSFORM_EXPAND_16 to the interface. + +With this mode you can't do color correction, but you can do arithmetic, +including composition and scaling, on the data without further processing. + + png_set_alpha_mode(png_ptr, PNG_ALPHA_OPTIMIZED, + screen_gamma); + +You can avoid the expansion to 16-bit components with this mode, but you +lose the ability to scale the image or perform other linear arithmetic. +All you can do is compose the result onto a matching output. Since this +mode is libpng-specific you also need to write your own composition +software. + +The following are examples of calls to png_set_alpha_mode to achieve the +required overall gamma correction and, where necessary, alpha +premultiplication. + + png_set_alpha_mode(pp, PNG_ALPHA_PNG, PNG_DEFAULT_sRGB); + +This is the default libpng handling of the alpha channel - it is not +pre-multiplied into the color components. In addition the call states +that the output is for a sRGB system and causes all PNG files without gAMA +chunks to be assumed to be encoded using sRGB. + + png_set_alpha_mode(pp, PNG_ALPHA_PNG, PNG_GAMMA_MAC); + +In this case the output is assumed to be something like an sRGB conformant +display preceeded by a power-law lookup table of power 1.45. This is how +early Mac systems behaved. + + png_set_alpha_mode(pp, PNG_ALPHA_STANDARD, PNG_GAMMA_LINEAR); + +This is the classic Jim Blinn approach and will work in academic +environments where everything is done by the book. It has the shortcoming +of assuming that input PNG data with no gamma information is linear - this +is unlikely to be correct unless the PNG files where generated locally. +Most of the time the output precision will be so low as to show +significant banding in dark areas of the image. + + png_set_expand_16(pp); + png_set_alpha_mode(pp, PNG_ALPHA_STANDARD, PNG_DEFAULT_sRGB); + +This is a somewhat more realistic Jim Blinn inspired approach. PNG files +are assumed to have the sRGB encoding if not marked with a gamma value and +the output is always 16 bits per component. This permits accurate scaling +and processing of the data. If you know that your input PNG files were +generated locally you might need to replace PNG_DEFAULT_sRGB with the +correct value for your system. + + png_set_alpha_mode(pp, PNG_ALPHA_OPTIMIZED, PNG_DEFAULT_sRGB); + +If you just need to composite the PNG image onto an existing background +and if you control the code that does this you can use the optimization +setting. In this case you just copy completely opaque pixels to the +output. For pixels that are not completely transparent (you just skip +those) you do the composition math using png_composite or png_composite_16 +below then encode the resultant 8-bit or 16-bit values to match the output +encoding. + + Other cases + +If neither the PNG nor the standard linear encoding work for you because +of the software or hardware you use then you have a big problem. The PNG +case will probably result in halos around the image. The linear encoding +will probably result in a washed out, too bright, image (it's actually too +contrasty.) Try the ALPHA_OPTIMIZED mode above - this will probably +substantially reduce the halos. Alternatively try: + + png_set_alpha_mode(pp, PNG_ALPHA_BROKEN, PNG_DEFAULT_sRGB); + +This option will also reduce the halos, but there will be slight dark +halos round the opaque parts of the image where the background is light. +In the OPTIMIZED mode the halos will be light halos where the background +is dark. Take your pick - the halos are unavoidable unless you can get +your hardware/software fixed! (The OPTIMIZED approach is slightly +faster.) + +When the default gamma of PNG files doesn't match the output gamma. +If you have PNG files with no gamma information png_set_alpha_mode allows +you to provide a default gamma, but it also sets the ouput gamma to the +matching value. If you know your PNG files have a gamma that doesn't +match the output you can take advantage of the fact that +png_set_alpha_mode always sets the output gamma but only sets the PNG +default if it is not already set: + + png_set_alpha_mode(pp, PNG_ALPHA_PNG, PNG_DEFAULT_sRGB); + png_set_alpha_mode(pp, PNG_ALPHA_PNG, PNG_GAMMA_MAC); + +The first call sets both the default and the output gamma values, the +second call overrides the output gamma without changing the default. This +is easier than achieving the same effect with png_set_gamma. You must use +PNG_ALPHA_PNG for the first call - internal checking in png_set_alpha will +fire if more than one call to png_set_alpha_mode and png_set_background is +made in the same read operation, however multiple calls with PNG_ALPHA_PNG +are ignored. + +If you don't need, or can't handle, the alpha channel you can call +png_set_background() to remove it by compositing against a fixed color. Don't +call png_set_strip_alpha() to do this - it will leave spurious pixel values in +transparent parts of this image. + + png_set_background(png_ptr, &background_color, + PNG_BACKGROUND_GAMMA_SCREEN, 0, 1); + +The background_color is an RGB or grayscale value according to the data format +libpng will produce for you. Because you don't yet know the format of the PNG +file, if you call png_set_background at this point you must arrange for the +format produced by libpng to always have 8-bit or 16-bit components and then +store the color as an 8-bit or 16-bit color as appropriate. The color contains +separate gray and RGB component values, so you can let libpng produce gray or +RGB output according to the input format, but low bit depth grayscale images +must always be converted to at least 8-bit format. (Even though low bit depth +grayscale images can't have an alpha channel they can have a transparent +color!) + +You set the transforms you need later, either as flags to the high level +interface or libpng API calls for the low level interface. For reference the +settings and API calls required are: + +8-bit values: + PNG_TRANSFORM_SCALE_16 | PNG_EXPAND + png_set_expand(png_ptr); png_set_scale_16(png_ptr); + + If you must get exactly the same inaccurate results + produced by default in versions prior to libpng-1.5.4, + use PNG_TRANSFORM_STRIP_16 and png_set_strip_16(png_ptr) + instead. + +16-bit values: + PNG_TRANSFORM_EXPAND_16 + png_set_expand_16(png_ptr); + +In either case palette image data will be expanded to RGB. If you just want +color data you can add PNG_TRANSFORM_GRAY_TO_RGB or png_set_gray_to_rgb(png_ptr) +to the list. + +Calling png_set_background before the PNG file header is read will not work +prior to libpng-1.5.4. Because the failure may result in unexpected warnings or +errors it is therefore much safer to call png_set_background after the head has +been read. Unfortunately this means that prior to libpng-1.5.4 it cannot be +used with the high level interface. + +.SS The high-level read interface + +At this point there are two ways to proceed; through the high-level +read interface, or through a sequence of low-level read operations. +You can use the high-level interface if (a) you are willing to read +the entire image into memory, and (b) the input transformations +you want to do are limited to the following set: + + PNG_TRANSFORM_IDENTITY No transformation + PNG_TRANSFORM_SCALE_16 Strip 16-bit samples to + 8-bit accurately + PNG_TRANSFORM_STRIP_16 Chop 16-bit samples to + 8-bit less accurately + PNG_TRANSFORM_STRIP_ALPHA Discard the alpha channel + PNG_TRANSFORM_PACKING Expand 1, 2 and 4-bit + samples to bytes + PNG_TRANSFORM_PACKSWAP Change order of packed + pixels to LSB first + PNG_TRANSFORM_EXPAND Perform set_expand() + PNG_TRANSFORM_INVERT_MONO Invert monochrome images + PNG_TRANSFORM_SHIFT Normalize pixels to the + sBIT depth + PNG_TRANSFORM_BGR Flip RGB to BGR, RGBA + to BGRA + PNG_TRANSFORM_SWAP_ALPHA Flip RGBA to ARGB or GA + to AG + PNG_TRANSFORM_INVERT_ALPHA Change alpha from opacity + to transparency + PNG_TRANSFORM_SWAP_ENDIAN Byte-swap 16-bit samples + PNG_TRANSFORM_GRAY_TO_RGB Expand grayscale samples + to RGB (or GA to RGBA) + PNG_TRANSFORM_EXPAND_16 Expand samples to 16 bits + +(This excludes setting a background color, doing gamma transformation, +quantizing, and setting filler.) If this is the case, simply do this: + + png_read_png(png_ptr, info_ptr, png_transforms, NULL) + +where png_transforms is an integer containing the bitwise OR of some +set of transformation flags. This call is equivalent to png_read_info(), +followed the set of transformations indicated by the transform mask, +then png_read_image(), and finally png_read_end(). + +(The final parameter of this call is not yet used. Someday it might point +to transformation parameters required by some future input transform.) + +You must use png_transforms and not call any png_set_transform() functions +when you use png_read_png(). + +After you have called png_read_png(), you can retrieve the image data +with + + row_pointers = png_get_rows(png_ptr, info_ptr); + +where row_pointers is an array of pointers to the pixel data for each row: + + png_bytep row_pointers[height]; + +If you know your image size and pixel size ahead of time, you can allocate +row_pointers prior to calling png_read_png() with + + if (height > PNG_UINT_32_MAX/(sizeof (png_byte))) + png_error (png_ptr, + "Image is too tall to process in memory"); + + if (width > PNG_UINT_32_MAX/pixel_size) + png_error (png_ptr, + "Image is too wide to process in memory"); + + row_pointers = png_malloc(png_ptr, + height*(sizeof (png_bytep))); + + for (int i=0; i) and +png_get_(png_ptr, info_ptr, ...) functions return non-zero if the +data has been read, or zero if it is missing. The parameters to the +png_get_ are set directly if they are simple data types, or a +pointer into the info_ptr is returned for any complex types. + +The colorspace data from gAMA, cHRM, sRGB, iCCP, and sBIT chunks +is simply returned to give the application information about how the +image was encoded. Libpng itself only does transformations using the file +gamma when combining semitransparent pixels with the background color, and, +since libpng-1.6.0, when converting between 8-bit sRGB and 16-bit linear pixels +within the simplified API. Libpng also uses the file gamma when converting +RGB to gray, beginning with libpng-1.0.5, if the application calls +png_set_rgb_to_gray()). + + png_get_PLTE(png_ptr, info_ptr, &palette, + &num_palette); + + palette - the palette for the file + (array of png_color) + + num_palette - number of entries in the palette + + png_get_gAMA(png_ptr, info_ptr, &file_gamma); + png_get_gAMA_fixed(png_ptr, info_ptr, &int_file_gamma); + + file_gamma - the gamma at which the file is + written (PNG_INFO_gAMA) + + int_file_gamma - 100,000 times the gamma at which the + file is written + + png_get_cHRM(png_ptr, info_ptr, &white_x, &white_y, &red_x, + &red_y, &green_x, &green_y, &blue_x, &blue_y) + png_get_cHRM_XYZ(png_ptr, info_ptr, &red_X, &red_Y, &red_Z, + &green_X, &green_Y, &green_Z, &blue_X, &blue_Y, + &blue_Z) + png_get_cHRM_fixed(png_ptr, info_ptr, &int_white_x, + &int_white_y, &int_red_x, &int_red_y, + &int_green_x, &int_green_y, &int_blue_x, + &int_blue_y) + png_get_cHRM_XYZ_fixed(png_ptr, info_ptr, &int_red_X, &int_red_Y, + &int_red_Z, &int_green_X, &int_green_Y, + &int_green_Z, &int_blue_X, &int_blue_Y, + &int_blue_Z) + + {white,red,green,blue}_{x,y} + A color space encoding specified using the + chromaticities of the end points and the + white point. (PNG_INFO_cHRM) + + {red,green,blue}_{X,Y,Z} + A color space encoding specified using the + encoding end points - the CIE tristimulus + specification of the intended color of the red, + green and blue channels in the PNG RGB data. + The white point is simply the sum of the three + end points. (PNG_INFO_cHRM) + + png_get_sRGB(png_ptr, info_ptr, &srgb_intent); + + srgb_intent - the rendering intent (PNG_INFO_sRGB) + The presence of the sRGB chunk + means that the pixel data is in the + sRGB color space. This chunk also + implies specific values of gAMA and + cHRM. + + png_get_iCCP(png_ptr, info_ptr, &name, + &compression_type, &profile, &proflen); + + name - The profile name. + + compression_type - The compression type; always + PNG_COMPRESSION_TYPE_BASE for PNG 1.0. + You may give NULL to this argument to + ignore it. + + profile - International Color Consortium color + profile data. May contain NULs. + + proflen - length of profile data in bytes. + + png_get_sBIT(png_ptr, info_ptr, &sig_bit); + + sig_bit - the number of significant bits for + (PNG_INFO_sBIT) each of the gray, + red, green, and blue channels, + whichever are appropriate for the + given color type (png_color_16) + + png_get_tRNS(png_ptr, info_ptr, &trans_alpha, + &num_trans, &trans_color); + + trans_alpha - array of alpha (transparency) + entries for palette (PNG_INFO_tRNS) + + num_trans - number of transparent entries + (PNG_INFO_tRNS) + + trans_color - graylevel or color sample values of + the single transparent color for + non-paletted images (PNG_INFO_tRNS) + + png_get_hIST(png_ptr, info_ptr, &hist); + (PNG_INFO_hIST) + + hist - histogram of palette (array of + png_uint_16) + + png_get_tIME(png_ptr, info_ptr, &mod_time); + + mod_time - time image was last modified + (PNG_VALID_tIME) + + png_get_bKGD(png_ptr, info_ptr, &background); + + background - background color (of type + png_color_16p) (PNG_VALID_bKGD) + valid 16-bit red, green and blue + values, regardless of color_type + + num_comments = png_get_text(png_ptr, info_ptr, + &text_ptr, &num_text); + + num_comments - number of comments + + text_ptr - array of png_text holding image + comments + + text_ptr[i].compression - type of compression used + on "text" PNG_TEXT_COMPRESSION_NONE + PNG_TEXT_COMPRESSION_zTXt + PNG_ITXT_COMPRESSION_NONE + PNG_ITXT_COMPRESSION_zTXt + + text_ptr[i].key - keyword for comment. Must contain + 1-79 characters. + + text_ptr[i].text - text comments for current + keyword. Can be empty. + + text_ptr[i].text_length - length of text string, + after decompression, 0 for iTXt + + text_ptr[i].itxt_length - length of itxt string, + after decompression, 0 for tEXt/zTXt + + text_ptr[i].lang - language of comment (empty + string for unknown). + + text_ptr[i].lang_key - keyword in UTF-8 + (empty string for unknown). + + Note that the itxt_length, lang, and lang_key + members of the text_ptr structure only exist when the + library is built with iTXt chunk support. Prior to + libpng-1.4.0 the library was built by default without + iTXt support. Also note that when iTXt is supported, + they contain NULL pointers when the "compression" + field contains PNG_TEXT_COMPRESSION_NONE or + PNG_TEXT_COMPRESSION_zTXt. + + num_text - number of comments (same as + num_comments; you can put NULL here + to avoid the duplication) + + Note while png_set_text() will accept text, language, + and translated keywords that can be NULL pointers, the + structure returned by png_get_text will always contain + regular zero-terminated C strings. They might be + empty strings but they will never be NULL pointers. + + num_spalettes = png_get_sPLT(png_ptr, info_ptr, + &palette_ptr); + + num_spalettes - number of sPLT chunks read. + + palette_ptr - array of palette structures holding + contents of one or more sPLT chunks + read. + + png_get_oFFs(png_ptr, info_ptr, &offset_x, &offset_y, + &unit_type); + + offset_x - positive offset from the left edge + of the screen (can be negative) + + offset_y - positive offset from the top edge + of the screen (can be negative) + + unit_type - PNG_OFFSET_PIXEL, PNG_OFFSET_MICROMETER + + png_get_pHYs(png_ptr, info_ptr, &res_x, &res_y, + &unit_type); + + res_x - pixels/unit physical resolution in + x direction + + res_y - pixels/unit physical resolution in + x direction + + unit_type - PNG_RESOLUTION_UNKNOWN, + PNG_RESOLUTION_METER + + png_get_sCAL(png_ptr, info_ptr, &unit, &width, + &height) + + unit - physical scale units (an integer) + + width - width of a pixel in physical scale units + + height - height of a pixel in physical scale units + (width and height are doubles) + + png_get_sCAL_s(png_ptr, info_ptr, &unit, &width, + &height) + + unit - physical scale units (an integer) + + width - width of a pixel in physical scale units + (expressed as a string) + + height - height of a pixel in physical scale units + (width and height are strings like "2.54") + + num_unknown_chunks = png_get_unknown_chunks(png_ptr, + info_ptr, &unknowns) + + unknowns - array of png_unknown_chunk + structures holding unknown chunks + + unknowns[i].name - name of unknown chunk + + unknowns[i].data - data of unknown chunk + + unknowns[i].size - size of unknown chunk's data + + unknowns[i].location - position of chunk in file + + The value of "i" corresponds to the order in which the + chunks were read from the PNG file or inserted with the + png_set_unknown_chunks() function. + + The value of "location" is a bitwise "or" of + + PNG_HAVE_IHDR (0x01) + PNG_HAVE_PLTE (0x02) + PNG_AFTER_IDAT (0x08) + +The data from the pHYs chunk can be retrieved in several convenient +forms: + + res_x = png_get_x_pixels_per_meter(png_ptr, + info_ptr) + + res_y = png_get_y_pixels_per_meter(png_ptr, + info_ptr) + + res_x_and_y = png_get_pixels_per_meter(png_ptr, + info_ptr) + + res_x = png_get_x_pixels_per_inch(png_ptr, + info_ptr) + + res_y = png_get_y_pixels_per_inch(png_ptr, + info_ptr) + + res_x_and_y = png_get_pixels_per_inch(png_ptr, + info_ptr) + + aspect_ratio = png_get_pixel_aspect_ratio(png_ptr, + info_ptr) + + Each of these returns 0 [signifying "unknown"] if + the data is not present or if res_x is 0; + res_x_and_y is 0 if res_x != res_y + + Note that because of the way the resolutions are + stored internally, the inch conversions won't + come out to exactly even number. For example, + 72 dpi is stored as 0.28346 pixels/meter, and + when this is retrieved it is 71.9988 dpi, so + be sure to round the returned value appropriately + if you want to display a reasonable-looking result. + +The data from the oFFs chunk can be retrieved in several convenient +forms: + + x_offset = png_get_x_offset_microns(png_ptr, info_ptr); + + y_offset = png_get_y_offset_microns(png_ptr, info_ptr); + + x_offset = png_get_x_offset_inches(png_ptr, info_ptr); + + y_offset = png_get_y_offset_inches(png_ptr, info_ptr); + + Each of these returns 0 [signifying "unknown" if both + x and y are 0] if the data is not present or if the + chunk is present but the unit is the pixel. The + remark about inexact inch conversions applies here + as well, because a value in inches can't always be + converted to microns and back without some loss + of precision. + +For more information, see the +PNG specification for chunk contents. Be careful with trusting +rowbytes, as some of the transformations could increase the space +needed to hold a row (expand, filler, gray_to_rgb, etc.). +See png_read_update_info(), below. + +A quick word about text_ptr and num_text. PNG stores comments in +keyword/text pairs, one pair per chunk, with no limit on the number +of text chunks, and a 2^31 byte limit on their size. While there are +suggested keywords, there is no requirement to restrict the use to these +strings. It is strongly suggested that keywords and text be sensible +to humans (that's the point), so don't use abbreviations. Non-printing +symbols are not allowed. See the PNG specification for more details. +There is also no requirement to have text after the keyword. + +Keywords should be limited to 79 Latin-1 characters without leading or +trailing spaces, but non-consecutive spaces are allowed within the +keyword. It is possible to have the same keyword any number of times. +The text_ptr is an array of png_text structures, each holding a +pointer to a language string, a pointer to a keyword and a pointer to +a text string. The text string, language code, and translated +keyword may be empty or NULL pointers. The keyword/text +pairs are put into the array in the order that they are received. +However, some or all of the text chunks may be after the image, so, to +make sure you have read all the text chunks, don't mess with these +until after you read the stuff after the image. This will be +mentioned again below in the discussion that goes with png_read_end(). + +.SS Input transformations + +After you've read the header information, you can set up the library +to handle any special transformations of the image data. The various +ways to transform the data will be described in the order that they +should occur. This is important, as some of these change the color +type and/or bit depth of the data, and some others only work on +certain color types and bit depths. + +Transformations you request are ignored if they don't have any meaning for a +particular input data format. However some transformations can have an effect +as a result of a previous transformation. If you specify a contradictory set of +transformations, for example both adding and removing the alpha channel, you +cannot predict the final result. + +The color used for the transparency values should be supplied in the same +format/depth as the current image data. It is stored in the same format/depth +as the image data in a tRNS chunk, so this is what libpng expects for this data. + +The color used for the background value depends on the need_expand argument as +described below. + +Data will be decoded into the supplied row buffers packed into bytes +unless the library has been told to transform it into another format. +For example, 4 bit/pixel paletted or grayscale data will be returned +2 pixels/byte with the leftmost pixel in the high-order bits of the +byte, unless png_set_packing() is called. 8-bit RGB data will be stored +in RGB RGB RGB format unless png_set_filler() or png_set_add_alpha() +is called to insert filler bytes, either before or after each RGB triplet. +16-bit RGB data will be returned RRGGBB RRGGBB, with the most significant +byte of the color value first, unless png_set_scale_16() is called to +transform it to regular RGB RGB triplets, or png_set_filler() or +png_set_add alpha() is called to insert filler bytes, either before or +after each RRGGBB triplet. Similarly, 8-bit or 16-bit grayscale data can +be modified with png_set_filler(), png_set_add_alpha(), png_set_strip_16(), +or png_set_scale_16(). + +The following code transforms grayscale images of less than 8 to 8 bits, +changes paletted images to RGB, and adds a full alpha channel if there is +transparency information in a tRNS chunk. This is most useful on +grayscale images with bit depths of 2 or 4 or if there is a multiple-image +viewing application that wishes to treat all images in the same way. + + if (color_type == PNG_COLOR_TYPE_PALETTE) + png_set_palette_to_rgb(png_ptr); + + if (png_get_valid(png_ptr, info_ptr, + PNG_INFO_tRNS)) png_set_tRNS_to_alpha(png_ptr); + + if (color_type == PNG_COLOR_TYPE_GRAY && + bit_depth < 8) png_set_expand_gray_1_2_4_to_8(png_ptr); + +The first two functions are actually aliases for png_set_expand(), added +in libpng version 1.0.4, with the function names expanded to improve code +readability. In some future version they may actually do different +things. + +As of libpng version 1.2.9, png_set_expand_gray_1_2_4_to_8() was +added. It expands the sample depth without changing tRNS to alpha. + +As of libpng version 1.5.2, png_set_expand_16() was added. It behaves as +png_set_expand(); however, the resultant channels have 16 bits rather than 8. +Use this when the output color or gray channels are made linear to avoid fairly +severe accuracy loss. + + if (bit_depth < 16) + png_set_expand_16(png_ptr); + +PNG can have files with 16 bits per channel. If you only can handle +8 bits per channel, this will strip the pixels down to 8-bit. + + if (bit_depth == 16) +#if PNG_LIBPNG_VER >= 10504 + png_set_scale_16(png_ptr); +#else + png_set_strip_16(png_ptr); +#endif + +(The more accurate "png_set_scale_16()" API became available in libpng version +1.5.4). + +If you need to process the alpha channel on the image separately from the image +data (for example if you convert it to a bitmap mask) it is possible to have +libpng strip the channel leaving just RGB or gray data: + + if (color_type & PNG_COLOR_MASK_ALPHA) + png_set_strip_alpha(png_ptr); + +If you strip the alpha channel you need to find some other way of dealing with +the information. If, instead, you want to convert the image to an opaque +version with no alpha channel use png_set_background; see below. + +As of libpng version 1.5.2, almost all useful expansions are supported, the +major ommissions are conversion of grayscale to indexed images (which can be +done trivially in the application) and conversion of indexed to grayscale (which +can be done by a trivial manipulation of the palette.) + +In the following table, the 01 means grayscale with depth<8, 31 means +indexed with depth<8, other numerals represent the color type, "T" means +the tRNS chunk is present, A means an alpha channel is present, and O +means tRNS or alpha is present but all pixels in the image are opaque. + + FROM 01 31 0 0T 0O 2 2T 2O 3 3T 3O 4A 4O 6A 6O + TO + 01 - [G] - - - - - - - - - - - - - + 31 [Q] Q [Q] [Q] [Q] Q Q Q Q Q Q [Q] [Q] Q Q + 0 1 G + . . G G G G G G B B GB GB + 0T lt Gt t + . Gt G G Gt G G Bt Bt GBt GBt + 0O lt Gt t . + Gt Gt G Gt Gt G Bt Bt GBt GBt + 2 C P C C C + . . C - - CB CB B B + 2T Ct - Ct C C t + t - - - CBt CBt Bt Bt + 2O Ct - Ct C C t t + - - - CBt CBt Bt Bt + 3 [Q] p [Q] [Q] [Q] Q Q Q + . . [Q] [Q] Q Q + 3T [Qt] p [Qt][Q] [Q] Qt Qt Qt t + t [Qt][Qt] Qt Qt + 3O [Qt] p [Qt][Q] [Q] Qt Qt Qt t t + [Qt][Qt] Qt Qt + 4A lA G A T T GA GT GT GA GT GT + BA G GBA + 4O lA GBA A T T GA GT GT GA GT GT BA + GBA G + 6A CA PA CA C C A T tT PA P P C CBA + BA + 6O CA PBA CA C C A tT T PA P P CBA C BA + + +Within the matrix, + "+" identifies entries where 'from' and 'to' are the same. + "-" means the transformation is not supported. + "." means nothing is necessary (a tRNS chunk can just be ignored). + "t" means the transformation is obtained by png_set_tRNS. + "A" means the transformation is obtained by png_set_add_alpha(). + "X" means the transformation is obtained by png_set_expand(). + "1" means the transformation is obtained by + png_set_expand_gray_1_2_4_to_8() (and by png_set_expand() + if there is no transparency in the original or the final + format). + "C" means the transformation is obtained by png_set_gray_to_rgb(). + "G" means the transformation is obtained by png_set_rgb_to_gray(). + "P" means the transformation is obtained by + png_set_expand_palette_to_rgb(). + "p" means the transformation is obtained by png_set_packing(). + "Q" means the transformation is obtained by png_set_quantize(). + "T" means the transformation is obtained by + png_set_tRNS_to_alpha(). + "B" means the transformation is obtained by + png_set_background(), or png_strip_alpha(). + +When an entry has multiple transforms listed all are required to cause the +right overall transformation. When two transforms are separated by a comma +either will do the job. When transforms are enclosed in [] the transform should +do the job but this is currently unimplemented - a different format will result +if the suggested transformations are used. + +In PNG files, the alpha channel in an image +is the level of opacity. If you need the alpha channel in an image to +be the level of transparency instead of opacity, you can invert the +alpha channel (or the tRNS chunk data) after it's read, so that 0 is +fully opaque and 255 (in 8-bit or paletted images) or 65535 (in 16-bit +images) is fully transparent, with + + png_set_invert_alpha(png_ptr); + +PNG files pack pixels of bit depths 1, 2, and 4 into bytes as small as +they can, resulting in, for example, 8 pixels per byte for 1 bit +files. This code expands to 1 pixel per byte without changing the +values of the pixels: + + if (bit_depth < 8) + png_set_packing(png_ptr); + +PNG files have possible bit depths of 1, 2, 4, 8, and 16. All pixels +stored in a PNG image have been "scaled" or "shifted" up to the next +higher possible bit depth (e.g. from 5 bits/sample in the range [0,31] +to 8 bits/sample in the range [0, 255]). However, it is also possible +to convert the PNG pixel data back to the original bit depth of the +image. This call reduces the pixels back down to the original bit depth: + + png_color_8p sig_bit; + + if (png_get_sBIT(png_ptr, info_ptr, &sig_bit)) + png_set_shift(png_ptr, sig_bit); + +PNG files store 3-color pixels in red, green, blue order. This code +changes the storage of the pixels to blue, green, red: + + if (color_type == PNG_COLOR_TYPE_RGB || + color_type == PNG_COLOR_TYPE_RGB_ALPHA) + png_set_bgr(png_ptr); + +PNG files store RGB pixels packed into 3 or 6 bytes. This code expands them +into 4 or 8 bytes for windowing systems that need them in this format: + + if (color_type == PNG_COLOR_TYPE_RGB) + png_set_filler(png_ptr, filler, PNG_FILLER_BEFORE); + +where "filler" is the 8 or 16-bit number to fill with, and the location is +either PNG_FILLER_BEFORE or PNG_FILLER_AFTER, depending upon whether +you want the filler before the RGB or after. This transformation +does not affect images that already have full alpha channels. To add an +opaque alpha channel, use filler=0xff or 0xffff and PNG_FILLER_AFTER which +will generate RGBA pixels. + +Note that png_set_filler() does not change the color type. If you want +to do that, you can add a true alpha channel with + + if (color_type == PNG_COLOR_TYPE_RGB || + color_type == PNG_COLOR_TYPE_GRAY) + png_set_add_alpha(png_ptr, filler, PNG_FILLER_AFTER); + +where "filler" contains the alpha value to assign to each pixel. +This function was added in libpng-1.2.7. + +If you are reading an image with an alpha channel, and you need the +data as ARGB instead of the normal PNG format RGBA: + + if (color_type == PNG_COLOR_TYPE_RGB_ALPHA) + png_set_swap_alpha(png_ptr); + +For some uses, you may want a grayscale image to be represented as +RGB. This code will do that conversion: + + if (color_type == PNG_COLOR_TYPE_GRAY || + color_type == PNG_COLOR_TYPE_GRAY_ALPHA) + png_set_gray_to_rgb(png_ptr); + +Conversely, you can convert an RGB or RGBA image to grayscale or grayscale +with alpha. + + if (color_type == PNG_COLOR_TYPE_RGB || + color_type == PNG_COLOR_TYPE_RGB_ALPHA) + png_set_rgb_to_gray(png_ptr, error_action, + double red_weight, double green_weight); + + error_action = 1: silently do the conversion + + error_action = 2: issue a warning if the original + image has any pixel where + red != green or red != blue + + error_action = 3: issue an error and abort the + conversion if the original + image has any pixel where + red != green or red != blue + + red_weight: weight of red component + + green_weight: weight of green component + If either weight is negative, default + weights are used. + +In the corresponding fixed point API the red_weight and green_weight values are +simply scaled by 100,000: + + png_set_rgb_to_gray(png_ptr, error_action, + png_fixed_point red_weight, + png_fixed_point green_weight); + +If you have set error_action = 1 or 2, you can +later check whether the image really was gray, after processing +the image rows, with the png_get_rgb_to_gray_status(png_ptr) function. +It will return a png_byte that is zero if the image was gray or +1 if there were any non-gray pixels. Background and sBIT data +will be silently converted to grayscale, using the green channel +data for sBIT, regardless of the error_action setting. + +The default values come from the PNG file cHRM chunk if present; otherwise, the +defaults correspond to the ITU-R recommendation 709, and also the sRGB color +space, as recommended in the Charles Poynton's Colour FAQ, +, in section 9: + + + + Y = 0.2126 * R + 0.7152 * G + 0.0722 * B + +Previous versions of this document, 1998 through 2002, recommended a slightly +different formula: + + Y = 0.212671 * R + 0.715160 * G + 0.072169 * B + +Libpng uses an integer approximation: + + Y = (6968 * R + 23434 * G + 2366 * B)/32768 + +The calculation is done in a linear colorspace, if the image gamma +can be determined. + +The png_set_background() function has been described already; it tells libpng to +composite images with alpha or simple transparency against the supplied +background color. For compatibility with versions of libpng earlier than +libpng-1.5.4 it is recommended that you call the function after reading the file +header, even if you don't want to use the color in a bKGD chunk, if one exists. + +If the PNG file contains a bKGD chunk (PNG_INFO_bKGD valid), +you may use this color, or supply another color more suitable for +the current display (e.g., the background color from a web page). You +need to tell libpng how the color is represented, both the format of the +component values in the color (the number of bits) and the gamma encoding of the +color. The function takes two arguments, background_gamma_mode and need_expand +to convey this information; however, only two combinations are likely to be +useful: + + png_color_16 my_background; + png_color_16p image_background; + + if (png_get_bKGD(png_ptr, info_ptr, &image_background)) + png_set_background(png_ptr, image_background, + PNG_BACKGROUND_GAMMA_FILE, 1/*needs to be expanded*/, 1); + else + png_set_background(png_ptr, &my_background, + PNG_BACKGROUND_GAMMA_SCREEN, 0/*do not expand*/, 1); + +The second call was described above - my_background is in the format of the +final, display, output produced by libpng. Because you now know the format of +the PNG it is possible to avoid the need to choose either 8-bit or 16-bit +output and to retain palette images (the palette colors will be modified +appropriately and the tRNS chunk removed.) However, if you are doing this, +take great care not to ask for transformations without checking first that +they apply! + +In the first call the background color has the original bit depth and color type +of the PNG file. So, for palette images the color is supplied as a palette +index and for low bit greyscale images the color is a reduced bit value in +image_background->gray. + +If you didn't call png_set_gamma() before reading the file header, for example +if you need your code to remain compatible with older versions of libpng prior +to libpng-1.5.4, this is the place to call it. + +Do not call it if you called png_set_alpha_mode(); doing so will damage the +settings put in place by png_set_alpha_mode(). (If png_set_alpha_mode() is +supported then you can certainly do png_set_gamma() before reading the PNG +header.) + +This API unconditionally sets the screen and file gamma values, so it will +override the value in the PNG file unless it is called before the PNG file +reading starts. For this reason you must always call it with the PNG file +value when you call it in this position: + + if (png_get_gAMA(png_ptr, info_ptr, &file_gamma)) + png_set_gamma(png_ptr, screen_gamma, file_gamma); + + else + png_set_gamma(png_ptr, screen_gamma, 0.45455); + +If you need to reduce an RGB file to a paletted file, or if a paletted +file has more entries then will fit on your screen, png_set_quantize() +will do that. Note that this is a simple match quantization that merely +finds the closest color available. This should work fairly well with +optimized palettes, but fairly badly with linear color cubes. If you +pass a palette that is larger than maximum_colors, the file will +reduce the number of colors in the palette so it will fit into +maximum_colors. If there is a histogram, libpng will use it to make +more intelligent choices when reducing the palette. If there is no +histogram, it may not do as good a job. + + if (color_type & PNG_COLOR_MASK_COLOR) + { + if (png_get_valid(png_ptr, info_ptr, + PNG_INFO_PLTE)) + { + png_uint_16p histogram = NULL; + + png_get_hIST(png_ptr, info_ptr, + &histogram); + png_set_quantize(png_ptr, palette, num_palette, + max_screen_colors, histogram, 1); + } + + else + { + png_color std_color_cube[MAX_SCREEN_COLORS] = + { ... colors ... }; + + png_set_quantize(png_ptr, std_color_cube, + MAX_SCREEN_COLORS, MAX_SCREEN_COLORS, + NULL,0); + } + } + +PNG files describe monochrome as black being zero and white being one. +The following code will reverse this (make black be one and white be +zero): + + if (bit_depth == 1 && color_type == PNG_COLOR_TYPE_GRAY) + png_set_invert_mono(png_ptr); + +This function can also be used to invert grayscale and gray-alpha images: + + if (color_type == PNG_COLOR_TYPE_GRAY || + color_type == PNG_COLOR_TYPE_GRAY_ALPHA) + png_set_invert_mono(png_ptr); + +PNG files store 16-bit pixels in network byte order (big-endian, +ie. most significant bits first). This code changes the storage to the +other way (little-endian, i.e. least significant bits first, the +way PCs store them): + + if (bit_depth == 16) + png_set_swap(png_ptr); + +If you are using packed-pixel images (1, 2, or 4 bits/pixel), and you +need to change the order the pixels are packed into bytes, you can use: + + if (bit_depth < 8) + png_set_packswap(png_ptr); + +Finally, you can write your own transformation function if none of +the existing ones meets your needs. This is done by setting a callback +with + + png_set_read_user_transform_fn(png_ptr, + read_transform_fn); + +You must supply the function + + void read_transform_fn(png_structp png_ptr, png_row_infop + row_info, png_bytep data) + +See pngtest.c for a working example. Your function will be called +after all of the other transformations have been processed. Take care with +interlaced images if you do the interlace yourself - the width of the row is the +width in 'row_info', not the overall image width. + +If supported, libpng provides two information routines that you can use to find +where you are in processing the image: + + png_get_current_pass_number(png_structp png_ptr); + png_get_current_row_number(png_structp png_ptr); + +Don't try using these outside a transform callback - firstly they are only +supported if user transforms are supported, secondly they may well return +unexpected results unless the row is actually being processed at the moment they +are called. + +With interlaced +images the value returned is the row in the input sub-image image. Use +PNG_ROW_FROM_PASS_ROW(row, pass) and PNG_COL_FROM_PASS_COL(col, pass) to +find the output pixel (x,y) given an interlaced sub-image pixel (row,col,pass). + +The discussion of interlace handling above contains more information on how to +use these values. + +You can also set up a pointer to a user structure for use by your +callback function, and you can inform libpng that your transform +function will change the number of channels or bit depth with the +function + + png_set_user_transform_info(png_ptr, user_ptr, + user_depth, user_channels); + +The user's application, not libpng, is responsible for allocating and +freeing any memory required for the user structure. + +You can retrieve the pointer via the function +png_get_user_transform_ptr(). For example: + + voidp read_user_transform_ptr = + png_get_user_transform_ptr(png_ptr); + +The last thing to handle is interlacing; this is covered in detail below, +but you must call the function here if you want libpng to handle expansion +of the interlaced image. + + number_of_passes = png_set_interlace_handling(png_ptr); + +After setting the transformations, libpng can update your png_info +structure to reflect any transformations you've requested with this +call. + + png_read_update_info(png_ptr, info_ptr); + +This is most useful to update the info structure's rowbytes +field so you can use it to allocate your image memory. This function +will also update your palette with the correct screen_gamma and +background if these have been given with the calls above. You may +only call png_read_update_info() once with a particular info_ptr. + +After you call png_read_update_info(), you can allocate any +memory you need to hold the image. The row data is simply +raw byte data for all forms of images. As the actual allocation +varies among applications, no example will be given. If you +are allocating one large chunk, you will need to build an +array of pointers to each row, as it will be needed for some +of the functions below. + +Remember: Before you call png_read_update_info(), the png_get_*() +functions return the values corresponding to the original PNG image. +After you call png_read_update_info the values refer to the image +that libpng will output. Consequently you must call all the png_set_ +functions before you call png_read_update_info(). This is particularly +important for png_set_interlace_handling() - if you are going to call +png_read_update_info() you must call png_set_interlace_handling() before +it unless you want to receive interlaced output. + +.SS Reading image data + +After you've allocated memory, you can read the image data. +The simplest way to do this is in one function call. If you are +allocating enough memory to hold the whole image, you can just +call png_read_image() and libpng will read in all the image data +and put it in the memory area supplied. You will need to pass in +an array of pointers to each row. + +This function automatically handles interlacing, so you don't +need to call png_set_interlace_handling() (unless you call +png_read_update_info()) or call this function multiple times, or any +of that other stuff necessary with png_read_rows(). + + png_read_image(png_ptr, row_pointers); + +where row_pointers is: + + png_bytep row_pointers[height]; + +You can point to void or char or whatever you use for pixels. + +If you don't want to read in the whole image at once, you can +use png_read_rows() instead. If there is no interlacing (check +interlace_type == PNG_INTERLACE_NONE), this is simple: + + png_read_rows(png_ptr, row_pointers, NULL, + number_of_rows); + +where row_pointers is the same as in the png_read_image() call. + +If you are doing this just one row at a time, you can do this with +a single row_pointer instead of an array of row_pointers: + + png_bytep row_pointer = row; + png_read_row(png_ptr, row_pointer, NULL); + +If the file is interlaced (interlace_type != 0 in the IHDR chunk), things +get somewhat harder. The only current (PNG Specification version 1.2) +interlacing type for PNG is (interlace_type == PNG_INTERLACE_ADAM7); +a somewhat complicated 2D interlace scheme, known as Adam7, that +breaks down an image into seven smaller images of varying size, based +on an 8x8 grid. This number is defined (from libpng 1.5) as +PNG_INTERLACE_ADAM7_PASSES in png.h + +libpng can fill out those images or it can give them to you "as is". +It is almost always better to have libpng handle the interlacing for you. +If you want the images filled out, there are two ways to do that. The one +mentioned in the PNG specification is to expand each pixel to cover +those pixels that have not been read yet (the "rectangle" method). +This results in a blocky image for the first pass, which gradually +smooths out as more pixels are read. The other method is the "sparkle" +method, where pixels are drawn only in their final locations, with the +rest of the image remaining whatever colors they were initialized to +before the start of the read. The first method usually looks better, +but tends to be slower, as there are more pixels to put in the rows. + +If, as is likely, you want libpng to expand the images, call this before +calling png_start_read_image() or png_read_update_info(): + + if (interlace_type == PNG_INTERLACE_ADAM7) + number_of_passes + = png_set_interlace_handling(png_ptr); + +This will return the number of passes needed. Currently, this is seven, +but may change if another interlace type is added. This function can be +called even if the file is not interlaced, where it will return one pass. +You then need to read the whole image 'number_of_passes' times. Each time +will distribute the pixels from the current pass to the correct place in +the output image, so you need to supply the same rows to png_read_rows in +each pass. + +If you are not going to display the image after each pass, but are +going to wait until the entire image is read in, use the sparkle +effect. This effect is faster and the end result of either method +is exactly the same. If you are planning on displaying the image +after each pass, the "rectangle" effect is generally considered the +better looking one. + +If you only want the "sparkle" effect, just call png_read_rows() as +normal, with the third parameter NULL. Make sure you make pass over +the image number_of_passes times, and you don't change the data in the +rows between calls. You can change the locations of the data, just +not the data. Each pass only writes the pixels appropriate for that +pass, and assumes the data from previous passes is still valid. + + png_read_rows(png_ptr, row_pointers, NULL, + number_of_rows); + +If you only want the first effect (the rectangles), do the same as +before except pass the row buffer in the third parameter, and leave +the second parameter NULL. + + png_read_rows(png_ptr, NULL, row_pointers, + number_of_rows); + +If you don't want libpng to handle the interlacing details, just call +png_read_rows() PNG_INTERLACE_ADAM7_PASSES times to read in all the images. +Each of the images is a valid image by itself; however, you will almost +certainly need to distribute the pixels from each sub-image to the +correct place. This is where everything gets very tricky. + +If you want to retrieve the separate images you must pass the correct +number of rows to each successive call of png_read_rows(). The calculation +gets pretty complicated for small images, where some sub-images may +not even exist because either their width or height ends up zero. +libpng provides two macros to help you in 1.5 and later versions: + + png_uint_32 width = PNG_PASS_COLS(image_width, pass_number); + png_uint_32 height = PNG_PASS_ROWS(image_height, pass_number); + +Respectively these tell you the width and height of the sub-image +corresponding to the numbered pass. 'pass' is in in the range 0 to 6 - +this can be confusing because the specification refers to the same passes +as 1 to 7! Be careful, you must check both the width and height before +calling png_read_rows() and not call it for that pass if either is zero. + +You can, of course, read each sub-image row by row. If you want to +produce optimal code to make a pixel-by-pixel transformation of an +interlaced image this is the best approach; read each row of each pass, +transform it, and write it out to a new interlaced image. + +If you want to de-interlace the image yourself libpng provides further +macros to help that tell you where to place the pixels in the output image. +Because the interlacing scheme is rectangular - sub-image pixels are always +arranged on a rectangular grid - all you need to know for each pass is the +starting column and row in the output image of the first pixel plus the +spacing between each pixel. As of libpng 1.5 there are four macros to +retrieve this information: + + png_uint_32 x = PNG_PASS_START_COL(pass); + png_uint_32 y = PNG_PASS_START_ROW(pass); + png_uint_32 xStep = 1U << PNG_PASS_COL_SHIFT(pass); + png_uint_32 yStep = 1U << PNG_PASS_ROW_SHIFT(pass); + +These allow you to write the obvious loop: + + png_uint_32 input_y = 0; + png_uint_32 output_y = PNG_PASS_START_ROW(pass); + + while (output_y < output_image_height) + { + png_uint_32 input_x = 0; + png_uint_32 output_x = PNG_PASS_START_COL(pass); + + while (output_x < output_image_width) + { + image[output_y][output_x] = + subimage[pass][input_y][input_x++]; + + output_x += xStep; + } + + ++input_y; + output_y += yStep; + } + +Notice that the steps between successive output rows and columns are +returned as shifts. This is possible because the pixels in the subimages +are always a power of 2 apart - 1, 2, 4 or 8 pixels - in the original +image. In practice you may need to directly calculate the output coordinate +given an input coordinate. libpng provides two further macros for this +purpose: + + png_uint_32 output_x = PNG_COL_FROM_PASS_COL(input_x, pass); + png_uint_32 output_y = PNG_ROW_FROM_PASS_ROW(input_y, pass); + +Finally a pair of macros are provided to tell you if a particular image +row or column appears in a given pass: + + int col_in_pass = PNG_COL_IN_INTERLACE_PASS(output_x, pass); + int row_in_pass = PNG_ROW_IN_INTERLACE_PASS(output_y, pass); + +Bear in mind that you will probably also need to check the width and height +of the pass in addition to the above to be sure the pass even exists! + +With any luck you are convinced by now that you don't want to do your own +interlace handling. In reality normally the only good reason for doing this +is if you are processing PNG files on a pixel-by-pixel basis and don't want +to load the whole file into memory when it is interlaced. + +libpng includes a test program, pngvalid, that illustrates reading and +writing of interlaced images. If you can't get interlacing to work in your +code and don't want to leave it to libpng (the recommended approach), see +how pngvalid.c does it. + +.SS Finishing a sequential read + +After you are finished reading the image through the +low-level interface, you can finish reading the file. + +If you want to use a different crc action for handling CRC errors in +chunks after the image data, you can call png_set_crc_action() +again at this point. + +If you are interested in comments or time, which may be stored either +before or after the image data, you should pass the separate png_info +struct if you want to keep the comments from before and after the image +separate. + + png_infop end_info = png_create_info_struct(png_ptr); + + if (!end_info) + { + png_destroy_read_struct(&png_ptr, &info_ptr, + (png_infopp)NULL); + return (ERROR); + } + + png_read_end(png_ptr, end_info); + +If you are not interested, you should still call png_read_end() +but you can pass NULL, avoiding the need to create an end_info structure. +If you do this, libpng will not process any chunks after IDAT other than +skipping over them and perhaps (depending on whether you have called +png_set_crc_action) checking their CRCs while looking for the IEND chunk. + + png_read_end(png_ptr, (png_infop)NULL); + +If you don't call png_read_end(), then your file pointer will be +left pointing to the first chunk after the last IDAT, which is probably +not what you want if you expect to read something beyond the end of +the PNG datastream. + +When you are done, you can free all memory allocated by libpng like this: + + png_destroy_read_struct(&png_ptr, &info_ptr, + &end_info); + +or, if you didn't create an end_info structure, + + png_destroy_read_struct(&png_ptr, &info_ptr, + (png_infopp)NULL); + +It is also possible to individually free the info_ptr members that +point to libpng-allocated storage with the following function: + + png_free_data(png_ptr, info_ptr, mask, seq) + + mask - identifies data to be freed, a mask + containing the bitwise OR of one or + more of + PNG_FREE_PLTE, PNG_FREE_TRNS, + PNG_FREE_HIST, PNG_FREE_ICCP, + PNG_FREE_PCAL, PNG_FREE_ROWS, + PNG_FREE_SCAL, PNG_FREE_SPLT, + PNG_FREE_TEXT, PNG_FREE_UNKN, + or simply PNG_FREE_ALL + + seq - sequence number of item to be freed + (\-1 for all items) + +This function may be safely called when the relevant storage has +already been freed, or has not yet been allocated, or was allocated +by the user and not by libpng, and will in those cases do nothing. +The "seq" parameter is ignored if only one item of the selected data +type, such as PLTE, is allowed. If "seq" is not \-1, and multiple items +are allowed for the data type identified in the mask, such as text or +sPLT, only the n'th item in the structure is freed, where n is "seq". + +The default behavior is only to free data that was allocated internally +by libpng. This can be changed, so that libpng will not free the data, +or so that it will free data that was allocated by the user with png_malloc() +or png_calloc() and passed in via a png_set_*() function, with + + png_data_freer(png_ptr, info_ptr, freer, mask) + + freer - one of + PNG_DESTROY_WILL_FREE_DATA + PNG_SET_WILL_FREE_DATA + PNG_USER_WILL_FREE_DATA + + mask - which data elements are affected + same choices as in png_free_data() + +This function only affects data that has already been allocated. +You can call this function after reading the PNG data but before calling +any png_set_*() functions, to control whether the user or the png_set_*() +function is responsible for freeing any existing data that might be present, +and again after the png_set_*() functions to control whether the user +or png_destroy_*() is supposed to free the data. When the user assumes +responsibility for libpng-allocated data, the application must use +png_free() to free it, and when the user transfers responsibility to libpng +for data that the user has allocated, the user must have used png_malloc() +or png_calloc() to allocate it. + +If you allocated your row_pointers in a single block, as suggested above in +the description of the high level read interface, you must not transfer +responsibility for freeing it to the png_set_rows or png_read_destroy function, +because they would also try to free the individual row_pointers[i]. + +If you allocated text_ptr.text, text_ptr.lang, and text_ptr.translated_keyword +separately, do not transfer responsibility for freeing text_ptr to libpng, +because when libpng fills a png_text structure it combines these members with +the key member, and png_free_data() will free only text_ptr.key. Similarly, +if you transfer responsibility for free'ing text_ptr from libpng to your +application, your application must not separately free those members. + +The png_free_data() function will turn off the "valid" flag for anything +it frees. If you need to turn the flag off for a chunk that was freed by +your application instead of by libpng, you can use + + png_set_invalid(png_ptr, info_ptr, mask); + + mask - identifies the chunks to be made invalid, + containing the bitwise OR of one or + more of + PNG_INFO_gAMA, PNG_INFO_sBIT, + PNG_INFO_cHRM, PNG_INFO_PLTE, + PNG_INFO_tRNS, PNG_INFO_bKGD, + PNG_INFO_hIST, PNG_INFO_pHYs, + PNG_INFO_oFFs, PNG_INFO_tIME, + PNG_INFO_pCAL, PNG_INFO_sRGB, + PNG_INFO_iCCP, PNG_INFO_sPLT, + PNG_INFO_sCAL, PNG_INFO_IDAT + +For a more compact example of reading a PNG image, see the file example.c. + +.SS Reading PNG files progressively + +The progressive reader is slightly different from the non-progressive +reader. Instead of calling png_read_info(), png_read_rows(), and +png_read_end(), you make one call to png_process_data(), which calls +callbacks when it has the info, a row, or the end of the image. You +set up these callbacks with png_set_progressive_read_fn(). You don't +have to worry about the input/output functions of libpng, as you are +giving the library the data directly in png_process_data(). I will +assume that you have read the section on reading PNG files above, +so I will only highlight the differences (although I will show +all of the code). + +png_structp png_ptr; +png_infop info_ptr; + + /* An example code fragment of how you would + initialize the progressive reader in your + application. */ + int + initialize_png_reader() + { + png_ptr = png_create_read_struct + (PNG_LIBPNG_VER_STRING, (png_voidp)user_error_ptr, + user_error_fn, user_warning_fn); + + if (!png_ptr) + return (ERROR); + + info_ptr = png_create_info_struct(png_ptr); + + if (!info_ptr) + { + png_destroy_read_struct(&png_ptr, + (png_infopp)NULL, (png_infopp)NULL); + return (ERROR); + } + + if (setjmp(png_jmpbuf(png_ptr))) + { + png_destroy_read_struct(&png_ptr, &info_ptr, + (png_infopp)NULL); + return (ERROR); + } + + /* This one's new. You can provide functions + to be called when the header info is valid, + when each row is completed, and when the image + is finished. If you aren't using all functions, + you can specify NULL parameters. Even when all + three functions are NULL, you need to call + png_set_progressive_read_fn(). You can use + any struct as the user_ptr (cast to a void pointer + for the function call), and retrieve the pointer + from inside the callbacks using the function + + png_get_progressive_ptr(png_ptr); + + which will return a void pointer, which you have + to cast appropriately. + */ + png_set_progressive_read_fn(png_ptr, (void *)user_ptr, + info_callback, row_callback, end_callback); + + return 0; + } + + /* A code fragment that you call as you receive blocks + of data */ + int + process_data(png_bytep buffer, png_uint_32 length) + { + if (setjmp(png_jmpbuf(png_ptr))) + { + png_destroy_read_struct(&png_ptr, &info_ptr, + (png_infopp)NULL); + return (ERROR); + } + + /* This one's new also. Simply give it a chunk + of data from the file stream (in order, of + course). On machines with segmented memory + models machines, don't give it any more than + 64K. The library seems to run fine with sizes + of 4K. Although you can give it much less if + necessary (I assume you can give it chunks of + 1 byte, I haven't tried less then 256 bytes + yet). When this function returns, you may + want to display any rows that were generated + in the row callback if you don't already do + so there. + */ + png_process_data(png_ptr, info_ptr, buffer, length); + + /* At this point you can call png_process_data_skip if + you want to handle data the library will skip yourself; + it simply returns the number of bytes to skip (and stops + libpng skipping that number of bytes on the next + png_process_data call). + return 0; + } + + /* This function is called (as set by + png_set_progressive_read_fn() above) when enough data + has been supplied so all of the header has been + read. + */ + void + info_callback(png_structp png_ptr, png_infop info) + { + /* Do any setup here, including setting any of + the transformations mentioned in the Reading + PNG files section. For now, you _must_ call + either png_start_read_image() or + png_read_update_info() after all the + transformations are set (even if you don't set + any). You may start getting rows before + png_process_data() returns, so this is your + last chance to prepare for that. + + This is where you turn on interlace handling, + assuming you don't want to do it yourself. + + If you need to you can stop the processing of + your original input data at this point by calling + png_process_data_pause. This returns the number + of unprocessed bytes from the last png_process_data + call - it is up to you to ensure that the next call + sees these bytes again. If you don't want to bother + with this you can get libpng to cache the unread + bytes by setting the 'save' parameter (see png.h) but + then libpng will have to copy the data internally. + */ + } + + /* This function is called when each row of image + data is complete */ + void + row_callback(png_structp png_ptr, png_bytep new_row, + png_uint_32 row_num, int pass) + { + /* If the image is interlaced, and you turned + on the interlace handler, this function will + be called for every row in every pass. Some + of these rows will not be changed from the + previous pass. When the row is not changed, + the new_row variable will be NULL. The rows + and passes are called in order, so you don't + really need the row_num and pass, but I'm + supplying them because it may make your life + easier. + + If you did not turn on interlace handling then + the callback is called for each row of each + sub-image when the image is interlaced. In this + case 'row_num' is the row in the sub-image, not + the row in the output image as it is in all other + cases. + + For the non-NULL rows of interlaced images when + you have switched on libpng interlace handling, + you must call png_progressive_combine_row() + passing in the row and the old row. You can + call this function for NULL rows (it will just + return) and for non-interlaced images (it just + does the memcpy for you) if it will make the + code easier. Thus, you can just do this for + all cases if you switch on interlace handling; + */ + + png_progressive_combine_row(png_ptr, old_row, + new_row); + + /* where old_row is what was displayed + previously for the row. Note that the first + pass (pass == 0, really) will completely cover + the old row, so the rows do not have to be + initialized. After the first pass (and only + for interlaced images), you will have to pass + the current row, and the function will combine + the old row and the new row. + + You can also call png_process_data_pause in this + callback - see above. + */ + } + + void + end_callback(png_structp png_ptr, png_infop info) + { + /* This function is called after the whole image + has been read, including any chunks after the + image (up to and including the IEND). You + will usually have the same info chunk as you + had in the header, although some data may have + been added to the comments and time fields. + + Most people won't do much here, perhaps setting + a flag that marks the image as finished. + */ + } + + + +.SH IV. Writing + +Much of this is very similar to reading. However, everything of +importance is repeated here, so you won't have to constantly look +back up in the reading section to understand writing. + +.SS Setup + +You will want to do the I/O initialization before you get into libpng, +so if it doesn't work, you don't have anything to undo. If you are not +using the standard I/O functions, you will need to replace them with +custom writing functions. See the discussion under Customizing libpng. + + FILE *fp = fopen(file_name, "wb"); + + if (!fp) + return (ERROR); + +Next, png_struct and png_info need to be allocated and initialized. +As these can be both relatively large, you may not want to store these +on the stack, unless you have stack space to spare. Of course, you +will want to check if they return NULL. If you are also reading, +you won't want to name your read structure and your write structure +both "png_ptr"; you can call them anything you like, such as +"read_ptr" and "write_ptr". Look at pngtest.c, for example. + + png_structp png_ptr = png_create_write_struct + (PNG_LIBPNG_VER_STRING, (png_voidp)user_error_ptr, + user_error_fn, user_warning_fn); + + if (!png_ptr) + return (ERROR); + + png_infop info_ptr = png_create_info_struct(png_ptr); + if (!info_ptr) + { + png_destroy_write_struct(&png_ptr, + (png_infopp)NULL); + return (ERROR); + } + +If you want to use your own memory allocation routines, +define PNG_USER_MEM_SUPPORTED and use +png_create_write_struct_2() instead of png_create_write_struct(): + + png_structp png_ptr = png_create_write_struct_2 + (PNG_LIBPNG_VER_STRING, (png_voidp)user_error_ptr, + user_error_fn, user_warning_fn, (png_voidp) + user_mem_ptr, user_malloc_fn, user_free_fn); + +After you have these structures, you will need to set up the +error handling. When libpng encounters an error, it expects to +longjmp() back to your routine. Therefore, you will need to call +setjmp() and pass the png_jmpbuf(png_ptr). If you +write the file from different routines, you will need to update +the png_jmpbuf(png_ptr) every time you enter a new routine that will +call a png_*() function. See your documentation of setjmp/longjmp +for your compiler for more information on setjmp/longjmp. See +the discussion on libpng error handling in the Customizing Libpng +section below for more information on the libpng error handling. + + if (setjmp(png_jmpbuf(png_ptr))) + { + png_destroy_write_struct(&png_ptr, &info_ptr); + fclose(fp); + return (ERROR); + } + ... + return; + +If you would rather avoid the complexity of setjmp/longjmp issues, +you can compile libpng with PNG_NO_SETJMP, in which case +errors will result in a call to PNG_ABORT() which defaults to abort(). + +You can #define PNG_ABORT() to a function that does something +more useful than abort(), as long as your function does not +return. + +Checking for invalid palette index on write was added at libpng +1.5.10. If a pixel contains an invalid (out-of-range) index libpng issues +a benign error. This is enabled by default because this condition is an +error according to the PNG specification, Clause 11.3.2, but the error can +be ignored in each png_ptr with + + png_set_check_for_invalid_index(png_ptr, 0); + +If the error is ignored, or if png_benign_error() treats it as a warning, +any invalid pixels are written as-is by the encoder, resulting in an +invalid PNG datastream as output. In this case the application is +responsible for ensuring that the pixel indexes are in range when it writes +a PLTE chunk with fewer entries than the bit depth would allow. + +Now you need to set up the output code. The default for libpng is to +use the C function fwrite(). If you use this, you will need to pass a +valid FILE * in the function png_init_io(). Be sure that the file is +opened in binary mode. Again, if you wish to handle writing data in +another way, see the discussion on libpng I/O handling in the Customizing +Libpng section below. + + png_init_io(png_ptr, fp); + +If you are embedding your PNG into a datastream such as MNG, and don't +want libpng to write the 8-byte signature, or if you have already +written the signature in your application, use + + png_set_sig_bytes(png_ptr, 8); + +to inform libpng that it should not write a signature. + +.SS Write callbacks + +At this point, you can set up a callback function that will be +called after each row has been written, which you can use to control +a progress meter or the like. It's demonstrated in pngtest.c. +You must supply a function + + void write_row_callback(png_structp png_ptr, png_uint_32 row, + int pass); + { + /* put your code here */ + } + +(You can give it another name that you like instead of "write_row_callback") + +To inform libpng about your function, use + + png_set_write_status_fn(png_ptr, write_row_callback); + +When this function is called the row has already been completely processed and +it has also been written out. The 'row' and 'pass' refer to the next row to be +handled. For the +non-interlaced case the row that was just handled is simply one less than the +passed in row number, and pass will always be 0. For the interlaced case the +same applies unless the row value is 0, in which case the row just handled was +the last one from one of the preceding passes. Because interlacing may skip a +pass you cannot be sure that the preceding pass is just 'pass\-1', if you really +need to know what the last pass is record (row,pass) from the callback and use +the last recorded value each time. + +As with the user transform you can find the output row using the +PNG_ROW_FROM_PASS_ROW macro. + +You now have the option of modifying how the compression library will +run. The following functions are mainly for testing, but may be useful +in some cases, like if you need to write PNG files extremely fast and +are willing to give up some compression, or if you want to get the +maximum possible compression at the expense of slower writing. If you +have no special needs in this area, let the library do what it wants by +not calling this function at all, as it has been tuned to deliver a good +speed/compression ratio. The second parameter to png_set_filter() is +the filter method, for which the only valid values are 0 (as of the +July 1999 PNG specification, version 1.2) or 64 (if you are writing +a PNG datastream that is to be embedded in a MNG datastream). The third +parameter is a flag that indicates which filter type(s) are to be tested +for each scanline. See the PNG specification for details on the specific +filter types. + + + /* turn on or off filtering, and/or choose + specific filters. You can use either a single + PNG_FILTER_VALUE_NAME or the bitwise OR of one + or more PNG_FILTER_NAME masks. + */ + png_set_filter(png_ptr, 0, + PNG_FILTER_NONE | PNG_FILTER_VALUE_NONE | + PNG_FILTER_SUB | PNG_FILTER_VALUE_SUB | + PNG_FILTER_UP | PNG_FILTER_VALUE_UP | + PNG_FILTER_AVG | PNG_FILTER_VALUE_AVG | + PNG_FILTER_PAETH | PNG_FILTER_VALUE_PAETH| + PNG_ALL_FILTERS); + +If an application wants to start and stop using particular filters during +compression, it should start out with all of the filters (to ensure that +the previous row of pixels will be stored in case it's needed later), +and then add and remove them after the start of compression. + +If you are writing a PNG datastream that is to be embedded in a MNG +datastream, the second parameter can be either 0 or 64. + +The png_set_compression_*() functions interface to the zlib compression +library, and should mostly be ignored unless you really know what you are +doing. The only generally useful call is png_set_compression_level() +which changes how much time zlib spends on trying to compress the image +data. See the Compression Library (zlib.h and algorithm.txt, distributed +with zlib) for details on the compression levels. + + #include zlib.h + + /* Set the zlib compression level */ + png_set_compression_level(png_ptr, + Z_BEST_COMPRESSION); + + /* Set other zlib parameters for compressing IDAT */ + png_set_compression_mem_level(png_ptr, 8); + png_set_compression_strategy(png_ptr, + Z_DEFAULT_STRATEGY); + png_set_compression_window_bits(png_ptr, 15); + png_set_compression_method(png_ptr, 8); + png_set_compression_buffer_size(png_ptr, 8192) + + /* Set zlib parameters for text compression + * If you don't call these, the parameters + * fall back on those defined for IDAT chunks + */ + png_set_text_compression_mem_level(png_ptr, 8); + png_set_text_compression_strategy(png_ptr, + Z_DEFAULT_STRATEGY); + png_set_text_compression_window_bits(png_ptr, 15); + png_set_text_compression_method(png_ptr, 8); + +.SS Setting the contents of info for output + +You now need to fill in the png_info structure with all the data you +wish to write before the actual image. Note that the only thing you +are allowed to write after the image is the text chunks and the time +chunk (as of PNG Specification 1.2, anyway). See png_write_end() and +the latest PNG specification for more information on that. If you +wish to write them before the image, fill them in now, and flag that +data as being valid. If you want to wait until after the data, don't +fill them until png_write_end(). For all the fields in png_info and +their data types, see png.h. For explanations of what the fields +contain, see the PNG specification. + +Some of the more important parts of the png_info are: + + png_set_IHDR(png_ptr, info_ptr, width, height, + bit_depth, color_type, interlace_type, + compression_type, filter_method) + + width - holds the width of the image + in pixels (up to 2^31). + + height - holds the height of the image + in pixels (up to 2^31). + + bit_depth - holds the bit depth of one of the + image channels. + (valid values are 1, 2, 4, 8, 16 + and depend also on the + color_type. See also significant + bits (sBIT) below). + + color_type - describes which color/alpha + channels are present. + PNG_COLOR_TYPE_GRAY + (bit depths 1, 2, 4, 8, 16) + PNG_COLOR_TYPE_GRAY_ALPHA + (bit depths 8, 16) + PNG_COLOR_TYPE_PALETTE + (bit depths 1, 2, 4, 8) + PNG_COLOR_TYPE_RGB + (bit_depths 8, 16) + PNG_COLOR_TYPE_RGB_ALPHA + (bit_depths 8, 16) + + PNG_COLOR_MASK_PALETTE + PNG_COLOR_MASK_COLOR + PNG_COLOR_MASK_ALPHA + + interlace_type - PNG_INTERLACE_NONE or + PNG_INTERLACE_ADAM7 + + compression_type - (must be + PNG_COMPRESSION_TYPE_DEFAULT) + + filter_method - (must be PNG_FILTER_TYPE_DEFAULT + or, if you are writing a PNG to + be embedded in a MNG datastream, + can also be + PNG_INTRAPIXEL_DIFFERENCING) + +If you call png_set_IHDR(), the call must appear before any of the +other png_set_*() functions, because they might require access to some of +the IHDR settings. The remaining png_set_*() functions can be called +in any order. + +If you wish, you can reset the compression_type, interlace_type, or +filter_method later by calling png_set_IHDR() again; if you do this, the +width, height, bit_depth, and color_type must be the same in each call. + + png_set_PLTE(png_ptr, info_ptr, palette, + num_palette); + + palette - the palette for the file + (array of png_color) + num_palette - number of entries in the palette + + png_set_gAMA(png_ptr, info_ptr, file_gamma); + png_set_gAMA_fixed(png_ptr, info_ptr, int_file_gamma); + + file_gamma - the gamma at which the image was + created (PNG_INFO_gAMA) + + int_file_gamma - 100,000 times the gamma at which + the image was created + + png_set_cHRM(png_ptr, info_ptr, white_x, white_y, red_x, red_y, + green_x, green_y, blue_x, blue_y) + png_set_cHRM_XYZ(png_ptr, info_ptr, red_X, red_Y, red_Z, green_X, + green_Y, green_Z, blue_X, blue_Y, blue_Z) + png_set_cHRM_fixed(png_ptr, info_ptr, int_white_x, int_white_y, + int_red_x, int_red_y, int_green_x, int_green_y, + int_blue_x, int_blue_y) + png_set_cHRM_XYZ_fixed(png_ptr, info_ptr, int_red_X, int_red_Y, + int_red_Z, int_green_X, int_green_Y, int_green_Z, + int_blue_X, int_blue_Y, int_blue_Z) + + {white,red,green,blue}_{x,y} + A color space encoding specified using the chromaticities + of the end points and the white point. + + {red,green,blue}_{X,Y,Z} + A color space encoding specified using the encoding end + points - the CIE tristimulus specification of the intended + color of the red, green and blue channels in the PNG RGB + data. The white point is simply the sum of the three end + points. + + png_set_sRGB(png_ptr, info_ptr, srgb_intent); + + srgb_intent - the rendering intent + (PNG_INFO_sRGB) The presence of + the sRGB chunk means that the pixel + data is in the sRGB color space. + This chunk also implies specific + values of gAMA and cHRM. Rendering + intent is the CSS-1 property that + has been defined by the International + Color Consortium + (http://www.color.org). + It can be one of + PNG_sRGB_INTENT_SATURATION, + PNG_sRGB_INTENT_PERCEPTUAL, + PNG_sRGB_INTENT_ABSOLUTE, or + PNG_sRGB_INTENT_RELATIVE. + + + png_set_sRGB_gAMA_and_cHRM(png_ptr, info_ptr, + srgb_intent); + + srgb_intent - the rendering intent + (PNG_INFO_sRGB) The presence of the + sRGB chunk means that the pixel + data is in the sRGB color space. + This function also causes gAMA and + cHRM chunks with the specific values + that are consistent with sRGB to be + written. + + png_set_iCCP(png_ptr, info_ptr, name, compression_type, + profile, proflen); + + name - The profile name. + + compression_type - The compression type; always + PNG_COMPRESSION_TYPE_BASE for PNG 1.0. + You may give NULL to this argument to + ignore it. + + profile - International Color Consortium color + profile data. May contain NULs. + + proflen - length of profile data in bytes. + + png_set_sBIT(png_ptr, info_ptr, sig_bit); + + sig_bit - the number of significant bits for + (PNG_INFO_sBIT) each of the gray, red, + green, and blue channels, whichever are + appropriate for the given color type + (png_color_16) + + png_set_tRNS(png_ptr, info_ptr, trans_alpha, + num_trans, trans_color); + + trans_alpha - array of alpha (transparency) + entries for palette (PNG_INFO_tRNS) + + num_trans - number of transparent entries + (PNG_INFO_tRNS) + + trans_color - graylevel or color sample values + (in order red, green, blue) of the + single transparent color for + non-paletted images (PNG_INFO_tRNS) + + png_set_hIST(png_ptr, info_ptr, hist); + + hist - histogram of palette (array of + png_uint_16) (PNG_INFO_hIST) + + png_set_tIME(png_ptr, info_ptr, mod_time); + + mod_time - time image was last modified + (PNG_VALID_tIME) + + png_set_bKGD(png_ptr, info_ptr, background); + + background - background color (of type + png_color_16p) (PNG_VALID_bKGD) + + png_set_text(png_ptr, info_ptr, text_ptr, num_text); + + text_ptr - array of png_text holding image + comments + + text_ptr[i].compression - type of compression used + on "text" PNG_TEXT_COMPRESSION_NONE + PNG_TEXT_COMPRESSION_zTXt + PNG_ITXT_COMPRESSION_NONE + PNG_ITXT_COMPRESSION_zTXt + text_ptr[i].key - keyword for comment. Must contain + 1-79 characters. + text_ptr[i].text - text comments for current + keyword. Can be NULL or empty. + text_ptr[i].text_length - length of text string, + after decompression, 0 for iTXt + text_ptr[i].itxt_length - length of itxt string, + after decompression, 0 for tEXt/zTXt + text_ptr[i].lang - language of comment (NULL or + empty for unknown). + text_ptr[i].translated_keyword - keyword in UTF-8 (NULL + or empty for unknown). + + Note that the itxt_length, lang, and lang_key + members of the text_ptr structure only exist when the + library is built with iTXt chunk support. Prior to + libpng-1.4.0 the library was built by default without + iTXt support. Also note that when iTXt is supported, + they contain NULL pointers when the "compression" + field contains PNG_TEXT_COMPRESSION_NONE or + PNG_TEXT_COMPRESSION_zTXt. + + num_text - number of comments + + png_set_sPLT(png_ptr, info_ptr, &palette_ptr, + num_spalettes); + + palette_ptr - array of png_sPLT_struct structures + to be added to the list of palettes + in the info structure. + num_spalettes - number of palette structures to be + added. + + png_set_oFFs(png_ptr, info_ptr, offset_x, offset_y, + unit_type); + + offset_x - positive offset from the left + edge of the screen + + offset_y - positive offset from the top + edge of the screen + + unit_type - PNG_OFFSET_PIXEL, PNG_OFFSET_MICROMETER + + png_set_pHYs(png_ptr, info_ptr, res_x, res_y, + unit_type); + + res_x - pixels/unit physical resolution + in x direction + + res_y - pixels/unit physical resolution + in y direction + + unit_type - PNG_RESOLUTION_UNKNOWN, + PNG_RESOLUTION_METER + + png_set_sCAL(png_ptr, info_ptr, unit, width, height) + + unit - physical scale units (an integer) + + width - width of a pixel in physical scale units + + height - height of a pixel in physical scale units + (width and height are doubles) + + png_set_sCAL_s(png_ptr, info_ptr, unit, width, height) + + unit - physical scale units (an integer) + + width - width of a pixel in physical scale units + expressed as a string + + height - height of a pixel in physical scale units + (width and height are strings like "2.54") + + png_set_unknown_chunks(png_ptr, info_ptr, &unknowns, + num_unknowns) + + unknowns - array of png_unknown_chunk + structures holding unknown chunks + unknowns[i].name - name of unknown chunk + unknowns[i].data - data of unknown chunk + unknowns[i].size - size of unknown chunk's data + unknowns[i].location - position to write chunk in file + 0: do not write chunk + PNG_HAVE_IHDR: before PLTE + PNG_HAVE_PLTE: before IDAT + PNG_AFTER_IDAT: after IDAT + +The "location" member is set automatically according to +what part of the output file has already been written. +You can change its value after calling png_set_unknown_chunks() +as demonstrated in pngtest.c. Within each of the "locations", +the chunks are sequenced according to their position in the +structure (that is, the value of "i", which is the order in which +the chunk was either read from the input file or defined with +png_set_unknown_chunks). + +A quick word about text and num_text. text is an array of png_text +structures. num_text is the number of valid structures in the array. +Each png_text structure holds a language code, a keyword, a text value, +and a compression type. + +The compression types have the same valid numbers as the compression +types of the image data. Currently, the only valid number is zero. +However, you can store text either compressed or uncompressed, unlike +images, which always have to be compressed. So if you don't want the +text compressed, set the compression type to PNG_TEXT_COMPRESSION_NONE. +Because tEXt and zTXt chunks don't have a language field, if you +specify PNG_TEXT_COMPRESSION_NONE or PNG_TEXT_COMPRESSION_zTXt +any language code or translated keyword will not be written out. + +Until text gets around a few hundred bytes, it is not worth compressing it. +After the text has been written out to the file, the compression type +is set to PNG_TEXT_COMPRESSION_NONE_WR or PNG_TEXT_COMPRESSION_zTXt_WR, +so that it isn't written out again at the end (in case you are calling +png_write_end() with the same struct). + +The keywords that are given in the PNG Specification are: + + Title Short (one line) title or + caption for image + + Author Name of image's creator + + Description Description of image (possibly long) + + Copyright Copyright notice + + Creation Time Time of original image creation + (usually RFC 1123 format, see below) + + Software Software used to create the image + + Disclaimer Legal disclaimer + + Warning Warning of nature of content + + Source Device used to create the image + + Comment Miscellaneous comment; conversion + from other image format + +The keyword-text pairs work like this. Keywords should be short +simple descriptions of what the comment is about. Some typical +keywords are found in the PNG specification, as is some recommendations +on keywords. You can repeat keywords in a file. You can even write +some text before the image and some after. For example, you may want +to put a description of the image before the image, but leave the +disclaimer until after, so viewers working over modem connections +don't have to wait for the disclaimer to go over the modem before +they start seeing the image. Finally, keywords should be full +words, not abbreviations. Keywords and text are in the ISO 8859-1 +(Latin-1) character set (a superset of regular ASCII) and can not +contain NUL characters, and should not contain control or other +unprintable characters. To make the comments widely readable, stick +with basic ASCII, and avoid machine specific character set extensions +like the IBM-PC character set. The keyword must be present, but +you can leave off the text string on non-compressed pairs. +Compressed pairs must have a text string, as only the text string +is compressed anyway, so the compression would be meaningless. + +PNG supports modification time via the png_time structure. Two +conversion routines are provided, png_convert_from_time_t() for +time_t and png_convert_from_struct_tm() for struct tm. The +time_t routine uses gmtime(). You don't have to use either of +these, but if you wish to fill in the png_time structure directly, +you should provide the time in universal time (GMT) if possible +instead of your local time. Note that the year number is the full +year (e.g. 1998, rather than 98 - PNG is year 2000 compliant!), and +that months start with 1. + +If you want to store the time of the original image creation, you should +use a plain tEXt chunk with the "Creation Time" keyword. This is +necessary because the "creation time" of a PNG image is somewhat vague, +depending on whether you mean the PNG file, the time the image was +created in a non-PNG format, a still photo from which the image was +scanned, or possibly the subject matter itself. In order to facilitate +machine-readable dates, it is recommended that the "Creation Time" +tEXt chunk use RFC 1123 format dates (e.g. "22 May 1997 18:07:10 GMT"), +although this isn't a requirement. Unlike the tIME chunk, the +"Creation Time" tEXt chunk is not expected to be automatically changed +by the software. To facilitate the use of RFC 1123 dates, a function +png_convert_to_rfc1123_buffer(png_ptr, buffer, png_timep) is provided to +convert from PNG time to an RFC 1123 format string. The caller must provide +a writeable buffer of at least 29 bytes. + +.SS Writing unknown chunks + +You can use the png_set_unknown_chunks function to queue up private chunks +for writing. You give it a chunk name, location, raw data, and a size. You +also must use png_set_keep_unknown_chunks() to ensure that libpng will +handle them. That's all there is to it. The chunks will be written by the +next following png_write_info_before_PLTE, png_write_info, or png_write_end +function, depending upon the specified location. Any chunks previously +read into the info structure's unknown-chunk list will also be written out +in a sequence that satisfies the PNG specification's ordering rules. + +Here is an example of writing two private chunks, prVt and miNE: + + #ifdef PNG_WRITE_UNKNOWN_CHUNKS_SUPPORTED + /* Set unknown chunk data */ + png_unknown_chunk unk_chunk[2]; + strcpy((char *) unk_chunk[0].name, "prVt"; + unk_chunk[0].data = (unsigned char *) "PRIVATE DATA"; + unk_chunk[0].size = strlen(unk_chunk[0].data)+1; + unk_chunk[0].location = PNG_HAVE_IHDR; + strcpy((char *) unk_chunk[1].name, "miNE"; + unk_chunk[1].data = (unsigned char *) "MY CHUNK DATA"; + unk_chunk[1].size = strlen(unk_chunk[0].data)+1; + unk_chunk[1].location = PNG_AFTER_IDAT; + png_set_unknown_chunks(write_ptr, write_info_ptr, + unk_chunk, 2); + /* Needed because miNE is not safe-to-copy */ + png_set_keep_unknown_chunks(png, PNG_HANDLE_CHUNK_ALWAYS, + (png_bytep) "miNE", 1); + # if PNG_LIBPNG_VER < 10600 + /* Deal with unknown chunk location bug in 1.5.x and earlier */ + png_set_unknown_chunk_location(png, info, 0, PNG_HAVE_IHDR); + png_set_unknown_chunk_location(png, info, 1, PNG_AFTER_IDAT); + # endif + # if PNG_LIBPNG_VER < 10500 + /* PNG_AFTER_IDAT writes two copies of the chunk prior to libpng-1.5.0, + * one before IDAT and another after IDAT, so don't use it; only use + * PNG_HAVE_IHDR location. This call resets the location previously + * set by assignment and png_set_unknown_chunk_location() for chunk 1. + */ + png_set_unknown_chunk_location(png, info, 1, PNG_HAVE_IHDR); + # endif + #endif + +.SS The high-level write interface + +At this point there are two ways to proceed; through the high-level +write interface, or through a sequence of low-level write operations. +You can use the high-level interface if your image data is present +in the info structure. All defined output +transformations are permitted, enabled by the following masks. + + PNG_TRANSFORM_IDENTITY No transformation + PNG_TRANSFORM_PACKING Pack 1, 2 and 4-bit samples + PNG_TRANSFORM_PACKSWAP Change order of packed + pixels to LSB first + PNG_TRANSFORM_INVERT_MONO Invert monochrome images + PNG_TRANSFORM_SHIFT Normalize pixels to the + sBIT depth + PNG_TRANSFORM_BGR Flip RGB to BGR, RGBA + to BGRA + PNG_TRANSFORM_SWAP_ALPHA Flip RGBA to ARGB or GA + to AG + PNG_TRANSFORM_INVERT_ALPHA Change alpha from opacity + to transparency + PNG_TRANSFORM_SWAP_ENDIAN Byte-swap 16-bit samples + PNG_TRANSFORM_STRIP_FILLER Strip out filler + bytes (deprecated). + PNG_TRANSFORM_STRIP_FILLER_BEFORE Strip out leading + filler bytes + PNG_TRANSFORM_STRIP_FILLER_AFTER Strip out trailing + filler bytes + +If you have valid image data in the info structure (you can use +png_set_rows() to put image data in the info structure), simply do this: + + png_write_png(png_ptr, info_ptr, png_transforms, NULL) + +where png_transforms is an integer containing the bitwise OR of some set of +transformation flags. This call is equivalent to png_write_info(), +followed the set of transformations indicated by the transform mask, +then png_write_image(), and finally png_write_end(). + +(The final parameter of this call is not yet used. Someday it might point +to transformation parameters required by some future output transform.) + +You must use png_transforms and not call any png_set_transform() functions +when you use png_write_png(). + +.SS The low-level write interface + +If you are going the low-level route instead, you are now ready to +write all the file information up to the actual image data. You do +this with a call to png_write_info(). + + png_write_info(png_ptr, info_ptr); + +Note that there is one transformation you may need to do before +png_write_info(). In PNG files, the alpha channel in an image is the +level of opacity. If your data is supplied as a level of transparency, +you can invert the alpha channel before you write it, so that 0 is +fully transparent and 255 (in 8-bit or paletted images) or 65535 +(in 16-bit images) is fully opaque, with + + png_set_invert_alpha(png_ptr); + +This must appear before png_write_info() instead of later with the +other transformations because in the case of paletted images the tRNS +chunk data has to be inverted before the tRNS chunk is written. If +your image is not a paletted image, the tRNS data (which in such cases +represents a single color to be rendered as transparent) won't need to +be changed, and you can safely do this transformation after your +png_write_info() call. + +If you need to write a private chunk that you want to appear before +the PLTE chunk when PLTE is present, you can write the PNG info in +two steps, and insert code to write your own chunk between them: + + png_write_info_before_PLTE(png_ptr, info_ptr); + png_set_unknown_chunks(png_ptr, info_ptr, ...); + png_write_info(png_ptr, info_ptr); + +After you've written the file information, you can set up the library +to handle any special transformations of the image data. The various +ways to transform the data will be described in the order that they +should occur. This is important, as some of these change the color +type and/or bit depth of the data, and some others only work on +certain color types and bit depths. Even though each transformation +checks to see if it has data that it can do something with, you should +make sure to only enable a transformation if it will be valid for the +data. For example, don't swap red and blue on grayscale data. + +PNG files store RGB pixels packed into 3 or 6 bytes. This code tells +the library to strip input data that has 4 or 8 bytes per pixel down +to 3 or 6 bytes (or strip 2 or 4-byte grayscale+filler data to 1 or 2 +bytes per pixel). + + png_set_filler(png_ptr, 0, PNG_FILLER_BEFORE); + +where the 0 is unused, and the location is either PNG_FILLER_BEFORE or +PNG_FILLER_AFTER, depending upon whether the filler byte in the pixel +is stored XRGB or RGBX. + +PNG files pack pixels of bit depths 1, 2, and 4 into bytes as small as +they can, resulting in, for example, 8 pixels per byte for 1 bit files. +If the data is supplied at 1 pixel per byte, use this code, which will +correctly pack the pixels into a single byte: + + png_set_packing(png_ptr); + +PNG files reduce possible bit depths to 1, 2, 4, 8, and 16. If your +data is of another bit depth, you can write an sBIT chunk into the +file so that decoders can recover the original data if desired. + + /* Set the true bit depth of the image data */ + if (color_type & PNG_COLOR_MASK_COLOR) + { + sig_bit.red = true_bit_depth; + sig_bit.green = true_bit_depth; + sig_bit.blue = true_bit_depth; + } + + else + { + sig_bit.gray = true_bit_depth; + } + + if (color_type & PNG_COLOR_MASK_ALPHA) + { + sig_bit.alpha = true_bit_depth; + } + + png_set_sBIT(png_ptr, info_ptr, &sig_bit); + +If the data is stored in the row buffer in a bit depth other than +one supported by PNG (e.g. 3 bit data in the range 0-7 for a 4-bit PNG), +this will scale the values to appear to be the correct bit depth as +is required by PNG. + + png_set_shift(png_ptr, &sig_bit); + +PNG files store 16-bit pixels in network byte order (big-endian, +ie. most significant bits first). This code would be used if they are +supplied the other way (little-endian, i.e. least significant bits +first, the way PCs store them): + + if (bit_depth > 8) + png_set_swap(png_ptr); + +If you are using packed-pixel images (1, 2, or 4 bits/pixel), and you +need to change the order the pixels are packed into bytes, you can use: + + if (bit_depth < 8) + png_set_packswap(png_ptr); + +PNG files store 3 color pixels in red, green, blue order. This code +would be used if they are supplied as blue, green, red: + + png_set_bgr(png_ptr); + +PNG files describe monochrome as black being zero and white being +one. This code would be used if the pixels are supplied with this reversed +(black being one and white being zero): + + png_set_invert_mono(png_ptr); + +Finally, you can write your own transformation function if none of +the existing ones meets your needs. This is done by setting a callback +with + + png_set_write_user_transform_fn(png_ptr, + write_transform_fn); + +You must supply the function + + void write_transform_fn(png_structp png_ptr, png_row_infop + row_info, png_bytep data) + +See pngtest.c for a working example. Your function will be called +before any of the other transformations are processed. If supported +libpng also supplies an information routine that may be called from +your callback: + + png_get_current_row_number(png_ptr); + png_get_current_pass_number(png_ptr); + +This returns the current row passed to the transform. With interlaced +images the value returned is the row in the input sub-image image. Use +PNG_ROW_FROM_PASS_ROW(row, pass) and PNG_COL_FROM_PASS_COL(col, pass) to +find the output pixel (x,y) given an interlaced sub-image pixel (row,col,pass). + +The discussion of interlace handling above contains more information on how to +use these values. + +You can also set up a pointer to a user structure for use by your +callback function. + + png_set_user_transform_info(png_ptr, user_ptr, 0, 0); + +The user_channels and user_depth parameters of this function are ignored +when writing; you can set them to zero as shown. + +You can retrieve the pointer via the function png_get_user_transform_ptr(). +For example: + + voidp write_user_transform_ptr = + png_get_user_transform_ptr(png_ptr); + +It is possible to have libpng flush any pending output, either manually, +or automatically after a certain number of lines have been written. To +flush the output stream a single time call: + + png_write_flush(png_ptr); + +and to have libpng flush the output stream periodically after a certain +number of scanlines have been written, call: + + png_set_flush(png_ptr, nrows); + +Note that the distance between rows is from the last time png_write_flush() +was called, or the first row of the image if it has never been called. +So if you write 50 lines, and then png_set_flush 25, it will flush the +output on the next scanline, and every 25 lines thereafter, unless +png_write_flush() is called before 25 more lines have been written. +If nrows is too small (less than about 10 lines for a 640 pixel wide +RGB image) the image compression may decrease noticeably (although this +may be acceptable for real-time applications). Infrequent flushing will +only degrade the compression performance by a few percent over images +that do not use flushing. + +.SS Writing the image data + +That's it for the transformations. Now you can write the image data. +The simplest way to do this is in one function call. If you have the +whole image in memory, you can just call png_write_image() and libpng +will write the image. You will need to pass in an array of pointers to +each row. This function automatically handles interlacing, so you don't +need to call png_set_interlace_handling() or call this function multiple +times, or any of that other stuff necessary with png_write_rows(). + + png_write_image(png_ptr, row_pointers); + +where row_pointers is: + + png_byte *row_pointers[height]; + +You can point to void or char or whatever you use for pixels. + +If you don't want to write the whole image at once, you can +use png_write_rows() instead. If the file is not interlaced, +this is simple: + + png_write_rows(png_ptr, row_pointers, + number_of_rows); + +row_pointers is the same as in the png_write_image() call. + +If you are just writing one row at a time, you can do this with +a single row_pointer instead of an array of row_pointers: + + png_bytep row_pointer = row; + + png_write_row(png_ptr, row_pointer); + +When the file is interlaced, things can get a good deal more complicated. +The only currently (as of the PNG Specification version 1.2, dated July +1999) defined interlacing scheme for PNG files is the "Adam7" interlace +scheme, that breaks down an image into seven smaller images of varying +size. libpng will build these images for you, or you can do them +yourself. If you want to build them yourself, see the PNG specification +for details of which pixels to write when. + +If you don't want libpng to handle the interlacing details, just +use png_set_interlace_handling() and call png_write_rows() the +correct number of times to write all the sub-images +(png_set_interlace_handling() returns the number of sub-images.) + +If you want libpng to build the sub-images, call this before you start +writing any rows: + + number_of_passes = png_set_interlace_handling(png_ptr); + +This will return the number of passes needed. Currently, this is seven, +but may change if another interlace type is added. + +Then write the complete image number_of_passes times. + + png_write_rows(png_ptr, row_pointers, number_of_rows); + +Think carefully before you write an interlaced image. Typically code that +reads such images reads all the image data into memory, uncompressed, before +doing any processing. Only code that can display an image on the fly can +take advantage of the interlacing and even then the image has to be exactly +the correct size for the output device, because scaling an image requires +adjacent pixels and these are not available until all the passes have been +read. + +If you do write an interlaced image you will hardly ever need to handle +the interlacing yourself. Call png_set_interlace_handling() and use the +approach described above. + +The only time it is conceivable that you will really need to write an +interlaced image pass-by-pass is when you have read one pass by pass and +made some pixel-by-pixel transformation to it, as described in the read +code above. In this case use the PNG_PASS_ROWS and PNG_PASS_COLS macros +to determine the size of each sub-image in turn and simply write the rows +you obtained from the read code. + +.SS Finishing a sequential write + +After you are finished writing the image, you should finish writing +the file. If you are interested in writing comments or time, you should +pass an appropriately filled png_info pointer. If you are not interested, +you can pass NULL. + + png_write_end(png_ptr, info_ptr); + +When you are done, you can free all memory used by libpng like this: + + png_destroy_write_struct(&png_ptr, &info_ptr); + +It is also possible to individually free the info_ptr members that +point to libpng-allocated storage with the following function: + + png_free_data(png_ptr, info_ptr, mask, seq) + + mask - identifies data to be freed, a mask + containing the bitwise OR of one or + more of + PNG_FREE_PLTE, PNG_FREE_TRNS, + PNG_FREE_HIST, PNG_FREE_ICCP, + PNG_FREE_PCAL, PNG_FREE_ROWS, + PNG_FREE_SCAL, PNG_FREE_SPLT, + PNG_FREE_TEXT, PNG_FREE_UNKN, + or simply PNG_FREE_ALL + + seq - sequence number of item to be freed + (\-1 for all items) + +This function may be safely called when the relevant storage has +already been freed, or has not yet been allocated, or was allocated +by the user and not by libpng, and will in those cases do nothing. +The "seq" parameter is ignored if only one item of the selected data +type, such as PLTE, is allowed. If "seq" is not \-1, and multiple items +are allowed for the data type identified in the mask, such as text or +sPLT, only the n'th item in the structure is freed, where n is "seq". + +If you allocated data such as a palette that you passed in to libpng +with png_set_*, you must not free it until just before the call to +png_destroy_write_struct(). + +The default behavior is only to free data that was allocated internally +by libpng. This can be changed, so that libpng will not free the data, +or so that it will free data that was allocated by the user with png_malloc() +or png_calloc() and passed in via a png_set_*() function, with + + png_data_freer(png_ptr, info_ptr, freer, mask) + + freer - one of + PNG_DESTROY_WILL_FREE_DATA + PNG_SET_WILL_FREE_DATA + PNG_USER_WILL_FREE_DATA + + mask - which data elements are affected + same choices as in png_free_data() + +For example, to transfer responsibility for some data from a read structure +to a write structure, you could use + + png_data_freer(read_ptr, read_info_ptr, + PNG_USER_WILL_FREE_DATA, + PNG_FREE_PLTE|PNG_FREE_tRNS|PNG_FREE_hIST) + + png_data_freer(write_ptr, write_info_ptr, + PNG_DESTROY_WILL_FREE_DATA, + PNG_FREE_PLTE|PNG_FREE_tRNS|PNG_FREE_hIST) + +thereby briefly reassigning responsibility for freeing to the user but +immediately afterwards reassigning it once more to the write_destroy +function. Having done this, it would then be safe to destroy the read +structure and continue to use the PLTE, tRNS, and hIST data in the write +structure. + +This function only affects data that has already been allocated. +You can call this function before calling after the png_set_*() functions +to control whether the user or png_destroy_*() is supposed to free the data. +When the user assumes responsibility for libpng-allocated data, the +application must use +png_free() to free it, and when the user transfers responsibility to libpng +for data that the user has allocated, the user must have used png_malloc() +or png_calloc() to allocate it. + +If you allocated text_ptr.text, text_ptr.lang, and text_ptr.translated_keyword +separately, do not transfer responsibility for freeing text_ptr to libpng, +because when libpng fills a png_text structure it combines these members with +the key member, and png_free_data() will free only text_ptr.key. Similarly, +if you transfer responsibility for free'ing text_ptr from libpng to your +application, your application must not separately free those members. +For a more compact example of writing a PNG image, see the file example.c. + +.SH V. Simplified API + +The simplified API, which became available in libpng-1.6.0, hides the details +of both libpng and the PNG file format itself. +It allows PNG files to be read into a very limited number of +in-memory bitmap formats or to be written from the same formats. If these +formats do not accommodate your needs then you can, and should, use the more +sophisticated APIs above - these support a wide variety of in-memory formats +and a wide variety of sophisticated transformations to those formats as well +as a wide variety of APIs to manipulate ancilliary information. + +To read a PNG file using the simplified API: + + 1) Declare a 'png_image' structure (see below) on the + stack and memset() it to all zero. + + 2) Call the appropriate png_image_begin_read... function. + + 3) Set the png_image 'format' member to the required + format and allocate a buffer for the image. + + 4) Call png_image_finish_read to read the image into + your buffer. + +There are no restrictions on the format of the PNG input itself; all valid +color types, bit depths, and interlace methods are acceptable, and the +input image is transformed as necessary to the requested in-memory format +during the png_image_finish_read() step. + +To write a PNG file using the simplified API: + + 1) Declare a 'png_image' structure on the stack and memset() + it to all zero. + + 2) Initialize the members of the structure that describe the + image, setting the 'format' member to the format of the + image in memory. + + 3) Call the appropriate png_image_write... function with a + pointer to the image to write the PNG data. + +png_image is a structure that describes the in-memory format of an image +when it is being read or define the in-memory format of an image that you +need to write. The "png_image" structure contains the following members: + + png_uint_32 version Set to PNG_IMAGE_VERSION + png_uint_32 width Image width in pixels (columns) + png_uint_32 height Image height in pixels (rows) + png_uint_32 format Image format as defined below + png_uint_32 flags A bit mask containing informational flags + png_controlp opaque Initialize to NULL, free with png_image_free + png_uint_32 colormap_entries; Number of entries in the color-map + png_uint_32 warning_or_error; + char message[64]; + +In the event of an error or warning the following field warning_or_error +field will be set to a non-zero value and the 'message' field will contain +a '\0' terminated string with the libpng error or warning message. If both +warnings and an error were encountered, only the error is recorded. If there +are multiple warnings, only the first one is recorded. + +The upper 30 bits of this value are reserved; the low two bits contain +a two bit code such that a value more than 1 indicates a failure in the API +just called: + + 0 - no warning or error + 1 - warning + 2 - error + 3 - error preceded by warning + +The pixels (samples) of the image have one to four channels whose components +have original values in the range 0 to 1.0: + + 1: A single gray or luminance channel (G). + 2: A gray/luminance channel and an alpha channel (GA). + 3: Three red, green, blue color channels (RGB). + 4: Three color channels and an alpha channel (RGBA). + +The channels are encoded in one of two ways: + + a) As a small integer, value 0..255, contained in a single byte. For the +alpha channel the original value is simply value/255. For the color or +luminance channels the value is encoded according to the sRGB specification +and matches the 8-bit format expected by typical display devices. + +The color/gray channels are not scaled (pre-multiplied) by the alpha +channel and are suitable for passing to color management software. + + b) As a value in the range 0..65535, contained in a 2-byte integer, in +the native byte order of the platform on which the application is running. +All channels can be converted to the original value by dividing by 65535; all +channels are linear. Color channels use the RGB encoding (RGB end-points) of +the sRGB specification. This encoding is identified by the +PNG_FORMAT_FLAG_LINEAR flag below. + +When an alpha channel is present it is expected to denote pixel coverage +of the color or luminance channels and is returned as an associated alpha +channel: the color/gray channels are scaled (pre-multiplied) by the alpha +value. + +When a color-mapped image is used as a result of calling +png_image_read_colormap or png_image_write_colormap the channels are encoded +in the color-map and the descriptions above apply to the color-map entries. +The image data is encoded as small integers, value 0..255, that index the +entries in the color-map. One integer (one byte) is stored for each pixel. + +PNG_FORMAT_* + +The #defines to be used in png_image::format. Each #define identifies a +particular layout of channel data and, if present, alpha values. There are +separate defines for each of the two channel encodings. + +A format is built up using single bit flag values. Not all combinations are +valid: use the bit flag values below for testing a format returned by the +read APIs, but set formats from the derived values. + +When reading or writing color-mapped images the format should be set to the +format of the entries in the color-map then png_image_{read,write}_colormap +called to read or write the color-map and set the format correctly for the +image data. Do not set the PNG_FORMAT_FLAG_COLORMAP bit directly! + +NOTE: libpng can be built with particular features disabled, if you see +compiler errors because the definition of one of the following flags has been +compiled out it is because libpng does not have the required support. It is +possible, however, for the libpng configuration to enable the format on just +read or just write; in that case you may see an error at run time. You can +guard against this by checking for the definition of: + + PNG_SIMPLIFIED_{READ,WRITE}_{BGR,AFIRST}_SUPPORTED + + PNG_FORMAT_FLAG_ALPHA 0x01 format with an alpha channel + PNG_FORMAT_FLAG_COLOR 0x02 color format: otherwise grayscale + PNG_FORMAT_FLAG_LINEAR 0x04 png_uint_16 channels else png_byte + PNG_FORMAT_FLAG_COLORMAP 0x08 libpng use only + PNG_FORMAT_FLAG_BGR 0x10 BGR colors, else order is RGB + PNG_FORMAT_FLAG_AFIRST 0x20 alpha channel comes first + +Supported formats are as follows. Future versions of libpng may support more +formats; for compatibility with older versions simply check if the format +macro is defined using #ifdef. These defines describe the in-memory layout +of the components of the pixels of the image. + +First the single byte formats: + + PNG_FORMAT_GRAY 0 + PNG_FORMAT_GA PNG_FORMAT_FLAG_ALPHA + PNG_FORMAT_AG (PNG_FORMAT_GA|PNG_FORMAT_FLAG_AFIRST) + PNG_FORMAT_RGB PNG_FORMAT_FLAG_COLOR + PNG_FORMAT_BGR (PNG_FORMAT_FLAG_COLOR|PNG_FORMAT_FLAG_BGR) + PNG_FORMAT_RGBA (PNG_FORMAT_RGB|PNG_FORMAT_FLAG_ALPHA) + PNG_FORMAT_ARGB (PNG_FORMAT_RGBA|PNG_FORMAT_FLAG_AFIRST) + PNG_FORMAT_BGRA (PNG_FORMAT_BGR|PNG_FORMAT_FLAG_ALPHA) + PNG_FORMAT_ABGR (PNG_FORMAT_BGRA|PNG_FORMAT_FLAG_AFIRST) + +Then the linear 2-byte formats. When naming these "Y" is used to +indicate a luminance (gray) channel. The component order within the pixel +is always the same - there is no provision for swapping the order of the +components in the linear format. The components are 16-bit integers in +the native byte order for your platform, and there is no provision for +swapping the bytes to a different endian condition. + + PNG_FORMAT_LINEAR_Y PNG_FORMAT_FLAG_LINEAR + PNG_FORMAT_LINEAR_Y_ALPHA + (PNG_FORMAT_FLAG_LINEAR|PNG_FORMAT_FLAG_ALPHA) + PNG_FORMAT_LINEAR_RGB + (PNG_FORMAT_FLAG_LINEAR|PNG_FORMAT_FLAG_COLOR) + PNG_FORMAT_LINEAR_RGB_ALPHA + (PNG_FORMAT_FLAG_LINEAR|PNG_FORMAT_FLAG_COLOR| + PNG_FORMAT_FLAG_ALPHA) + +Color-mapped formats are obtained by calling png_image_{read,write}_colormap, +as appropriate after setting png_image::format to the format of the color-map +to be read or written. Applications may check the value of +PNG_FORMAT_FLAG_COLORMAP to see if they have called the colormap API. The +format of the color-map may be extracted using the following macro. + + PNG_FORMAT_OF_COLORMAP(fmt) ((fmt) & ~PNG_FORMAT_FLAG_COLORMAP) + +PNG_IMAGE macros + +These are convenience macros to derive information from a png_image +structure. The PNG_IMAGE_SAMPLE_ macros return values appropriate to the +actual image sample values - either the entries in the color-map or the +pixels in the image. The PNG_IMAGE_PIXEL_ macros return corresponding values +for the pixels and will always return 1 after a call to +png_image_{read,write}_colormap. The remaining macros return information +about the rows in the image and the complete image. + +NOTE: All the macros that take a png_image::format parameter are compile time +constants if the format parameter is, itself, a constant. Therefore these +macros can be used in array declarations and case labels where required. +Similarly the macros are also pre-processor constants (sizeof is not used) so +they can be used in #if tests. + +First the information about the samples. + + PNG_IMAGE_SAMPLE_CHANNELS(fmt) + Returns the total number of channels in a given format: 1..4 + + PNG_IMAGE_SAMPLE_COMPONENT_SIZE(fmt) + Returns the size in bytes of a single component of a pixel or color-map + entry (as appropriate) in the image. + + PNG_IMAGE_SAMPLE_SIZE(fmt) + This is the size of the sample data for one sample. If the image is + color-mapped it is the size of one color-map entry (and image pixels are + one byte in size), otherwise it is the size of one image pixel. + + PNG_IMAGE_COLORMAP_SIZE(fmt) + The size of the color-map required by the format; this is the size of the + color-map buffer passed to the png_image_{read,write}_colormap APIs, it is + a fixed number determined by the format so can easily be allocated on the + stack if necessary. + +#define PNG_IMAGE_MAXIMUM_COLORMAP_COMPONENTS(fmt)\ + (PNG_IMAGE_SAMPLE_CHANNELS(fmt) * 256) + /* The maximum size of the color-map required by the format expressed in a + * count of components. This can be used to compile-time allocate a + * color-map: + * + * png_uint_16 colormap[PNG_IMAGE_MAXIMUM_COLORMAP_COMPONENTS(linear_fmt)]; + * + * png_byte colormap[PNG_IMAGE_MAXIMUM_COLORMAP_COMPONENTS(sRGB_fmt)]; + * + * Alternatively, use the PNG_IMAGE_COLORMAP_SIZE macro below to use the + * information from one of the png_image_begin_read_ APIs and dynamically + * allocate the required memory. + */ + + +Corresponding information about the pixels + + PNG_IMAGE_PIXEL_(test,fmt) + + PNG_IMAGE_PIXEL_CHANNELS(fmt) + The number of separate channels (components) in a pixel; 1 for a + color-mapped image. + + PNG_IMAGE_PIXEL_COMPONENT_SIZE(fmt)\ + The size, in bytes, of each component in a pixel; 1 for a color-mapped + image. + + PNG_IMAGE_PIXEL_SIZE(fmt) + The size, in bytes, of a complete pixel; 1 for a color-mapped image. + +Information about the whole row, or whole image + + PNG_IMAGE_ROW_STRIDE(image) + Returns the total number of components in a single row of the image; this + is the minimum 'row stride', the minimum count of components between each + row. For a color-mapped image this is the minimum number of bytes in a + row. + + If you need the stride measured in bytes, row_stride_bytes is + PNG_IMAGE_ROW_STRIDE(image) * PNG_IMAGE_PIXEL_COMPONENT_SIZE(fmt) + plus any padding bytes that your application might need, for example + to start the next row on a 4-byte boundary. + + PNG_IMAGE_BUFFER_SIZE(image, row_stride) + Returns the size, in bytes, of an image buffer given a png_image and a row + stride - the number of components to leave space for in each row. This + macro takes care of multiplying row_stride by PNG_IMAGE_PIXEL_COMONENT_SIZE + when the image has 2-byte components. + + PNG_IMAGE_FLAG_COLORSPACE_NOT_sRGB == 0x01 + This indicates the the RGB values of the in-memory bitmap do not + correspond to the red, green and blue end-points defined by sRGB. + + PNG_IMAGE_FLAG_COLORMAP == 0x02 + The PNG is color-mapped. If this flag is set png_image_read_colormap + can be used without further loss of image information. If it is not set + png_image_read_colormap will cause significant loss if the image has any + +READ APIs + + The png_image passed to the read APIs must have been initialized by setting + the png_controlp field 'opaque' to NULL (or, better, memset the whole thing.) + + int png_image_begin_read_from_file( png_imagep image, + const char *file_name) + + The named file is opened for read and the image header + is filled in from the PNG header in the file. + + int png_image_begin_read_from_stdio (png_imagep image, + FILE* file) + + The PNG header is read from the stdio FILE object. + + int png_image_begin_read_from_memory(png_imagep image, + png_const_voidp memory, png_size_t size) + + The PNG header is read from the given memory buffer. + + int png_image_finish_read(png_imagep image, + png_colorp background, void *buffer, + png_int_32 row_stride, void *colormap)); + + Finish reading the image into the supplied buffer and + clean up the png_image structure. + + row_stride is the step, in png_byte or png_uint_16 units + as appropriate, between adjacent rows. A positive stride + indicates that the top-most row is first in the buffer - + the normal top-down arrangement. A negative stride + indicates that the bottom-most row is first in the buffer. + + background need only be supplied if an alpha channel must + be removed from a png_byte format and the removal is to be + done by compositing on a solid color; otherwise it may be + NULL and any composition will be done directly onto the + buffer. The value is an sRGB color to use for the + background, for grayscale output the green channel is used. + + For linear output removing the alpha channel is always done + by compositing on black. + + void png_image_free(png_imagep image) + + Free any data allocated by libpng in image->opaque, + setting the pointer to NULL. May be called at any time + after the structure is initialized. + +When the simplified API needs to convert between sRGB and linear colorspaces, +the actual sRGB transfer curve defined in the sRGB specification (see the +article at http://en.wikipedia.org/wiki/SRGB) is used, not the gamma=1/2.2 +approximation used elsewhere in libpng. + +WRITE APIS + +For write you must initialize a png_image structure to describe the image to +be written: + + version: must be set to PNG_IMAGE_VERSION + opaque: must be initialized to NULL + width: image width in pixels + height: image height in rows + format: the format of the data you wish to write + flags: set to 0 unless one of the defined flags applies; set + PNG_IMAGE_FLAG_COLORSPACE_NOT_sRGB for color format images + where the RGB values do not correspond to the colors in sRGB. + colormap_entries: set to the number of entries in the color-map (0 to 256) + + int png_image_write_to_file, (png_imagep image, + const char *file, int convert_to_8bit, const void *buffer, + png_int_32 row_stride, const void *colormap)); + + Write the image to the named file. + + int png_image_write_to_stdio(png_imagep image, FILE *file, + int convert_to_8_bit, const void *buffer, + png_int_32 row_stride, const void *colormap) + + Write the image to the given (FILE*). + +With all write APIs if image is in one of the linear formats with +(png_uint_16) data then setting convert_to_8_bit will cause the output to be +a (png_byte) PNG gamma encoded according to the sRGB specification, otherwise +a 16-bit linear encoded PNG file is written. + +With all APIs row_stride is handled as in the read APIs - it is the spacing +from one row to the next in component sized units (float) and if negative +indicates a bottom-up row layout in the buffer. + +Note that the write API does not support interlacing, sub-8-bit pixels, +and indexed (paletted) images. + +.SH VI. Modifying/Customizing libpng + +There are two issues here. The first is changing how libpng does +standard things like memory allocation, input/output, and error handling. +The second deals with more complicated things like adding new chunks, +adding new transformations, and generally changing how libpng works. +Both of those are compile-time issues; that is, they are generally +determined at the time the code is written, and there is rarely a need +to provide the user with a means of changing them. + +Memory allocation, input/output, and error handling + +All of the memory allocation, input/output, and error handling in libpng +goes through callbacks that are user-settable. The default routines are +in pngmem.c, pngrio.c, pngwio.c, and pngerror.c, respectively. To change +these functions, call the appropriate png_set_*_fn() function. + +Memory allocation is done through the functions png_malloc(), png_calloc(), +and png_free(). The png_malloc() and png_free() functions currently just +call the standard C functions and png_calloc() calls png_malloc() and then +clears the newly allocated memory to zero; note that png_calloc(png_ptr, size) +is not the same as the calloc(number, size) function provided by stdlib.h. +There is limited support for certain systems with segmented memory +architectures and the types of pointers declared by png.h match this; you +will have to use appropriate pointers in your application. If you prefer +to use a different method of allocating and freeing data, you can use +png_create_read_struct_2() or png_create_write_struct_2() to register your +own functions as described above. These functions also provide a void +pointer that can be retrieved via + + mem_ptr=png_get_mem_ptr(png_ptr); + +Your replacement memory functions must have prototypes as follows: + + png_voidp malloc_fn(png_structp png_ptr, + png_alloc_size_t size); + + void free_fn(png_structp png_ptr, png_voidp ptr); + +Your malloc_fn() must return NULL in case of failure. The png_malloc() +function will normally call png_error() if it receives a NULL from the +system memory allocator or from your replacement malloc_fn(). + +Your free_fn() will never be called with a NULL ptr, since libpng's +png_free() checks for NULL before calling free_fn(). + +Input/Output in libpng is done through png_read() and png_write(), +which currently just call fread() and fwrite(). The FILE * is stored in +png_struct and is initialized via png_init_io(). If you wish to change +the method of I/O, the library supplies callbacks that you can set +through the function png_set_read_fn() and png_set_write_fn() at run +time, instead of calling the png_init_io() function. These functions +also provide a void pointer that can be retrieved via the function +png_get_io_ptr(). For example: + + png_set_read_fn(png_structp read_ptr, + voidp read_io_ptr, png_rw_ptr read_data_fn) + + png_set_write_fn(png_structp write_ptr, + voidp write_io_ptr, png_rw_ptr write_data_fn, + png_flush_ptr output_flush_fn); + + voidp read_io_ptr = png_get_io_ptr(read_ptr); + voidp write_io_ptr = png_get_io_ptr(write_ptr); + +The replacement I/O functions must have prototypes as follows: + + void user_read_data(png_structp png_ptr, + png_bytep data, png_size_t length); + + void user_write_data(png_structp png_ptr, + png_bytep data, png_size_t length); + + void user_flush_data(png_structp png_ptr); + +The user_read_data() function is responsible for detecting and +handling end-of-data errors. + +Supplying NULL for the read, write, or flush functions sets them back +to using the default C stream functions, which expect the io_ptr to +point to a standard *FILE structure. It is probably a mistake +to use NULL for one of write_data_fn and output_flush_fn but not both +of them, unless you have built libpng with PNG_NO_WRITE_FLUSH defined. +It is an error to read from a write stream, and vice versa. + +Error handling in libpng is done through png_error() and png_warning(). +Errors handled through png_error() are fatal, meaning that png_error() +should never return to its caller. Currently, this is handled via +setjmp() and longjmp() (unless you have compiled libpng with +PNG_NO_SETJMP, in which case it is handled via PNG_ABORT()), +but you could change this to do things like exit() if you should wish, +as long as your function does not return. + +On non-fatal errors, png_warning() is called +to print a warning message, and then control returns to the calling code. +By default png_error() and png_warning() print a message on stderr via +fprintf() unless the library is compiled with PNG_NO_CONSOLE_IO defined +(because you don't want the messages) or PNG_NO_STDIO defined (because +fprintf() isn't available). If you wish to change the behavior of the error +functions, you will need to set up your own message callbacks. These +functions are normally supplied at the time that the png_struct is created. +It is also possible to redirect errors and warnings to your own replacement +functions after png_create_*_struct() has been called by calling: + + png_set_error_fn(png_structp png_ptr, + png_voidp error_ptr, png_error_ptr error_fn, + png_error_ptr warning_fn); + + png_voidp error_ptr = png_get_error_ptr(png_ptr); + +If NULL is supplied for either error_fn or warning_fn, then the libpng +default function will be used, calling fprintf() and/or longjmp() if a +problem is encountered. The replacement error functions should have +parameters as follows: + + void user_error_fn(png_structp png_ptr, + png_const_charp error_msg); + + void user_warning_fn(png_structp png_ptr, + png_const_charp warning_msg); + +The motivation behind using setjmp() and longjmp() is the C++ throw and +catch exception handling methods. This makes the code much easier to write, +as there is no need to check every return code of every function call. +However, there are some uncertainties about the status of local variables +after a longjmp, so the user may want to be careful about doing anything +after setjmp returns non-zero besides returning itself. Consult your +compiler documentation for more details. For an alternative approach, you +may wish to use the "cexcept" facility (see http://cexcept.sourceforge.net), +which is illustrated in pngvalid.c and in contrib/visupng. + +Beginning in libpng-1.4.0, the png_set_benign_errors() API became available. +You can use this to handle certain errors (normally handled as errors) +as warnings. + + png_set_benign_errors (png_ptr, int allowed); + + allowed: 0: treat png_benign_error() as an error. + 1: treat png_benign_error() as a warning. + +As of libpng-1.6.0, the default condition is to treat benign errors as +warnings while reading and as errors while writing. + +.SS Custom chunks + +If you need to read or write custom chunks, you may need to get deeper +into the libpng code. The library now has mechanisms for storing +and writing chunks of unknown type; you can even declare callbacks +for custom chunks. However, this may not be good enough if the +library code itself needs to know about interactions between your +chunk and existing `intrinsic' chunks. + +If you need to write a new intrinsic chunk, first read the PNG +specification. Acquire a first level of understanding of how it works. +Pay particular attention to the sections that describe chunk names, +and look at how other chunks were designed, so you can do things +similarly. Second, check out the sections of libpng that read and +write chunks. Try to find a chunk that is similar to yours and use +it as a template. More details can be found in the comments inside +the code. It is best to handle private or unknown chunks in a generic method, +via callback functions, instead of by modifying libpng functions. This +is illustrated in pngtest.c, which uses a callback function to handle a +private "vpAg" chunk and the new "sTER" chunk, which are both unknown to +libpng. + +If you wish to write your own transformation for the data, look through +the part of the code that does the transformations, and check out some of +the simpler ones to get an idea of how they work. Try to find a similar +transformation to the one you want to add and copy off of it. More details +can be found in the comments inside the code itself. + +.SS Configuring for gui/windowing platforms: + +You will need to write new error and warning functions that use the GUI +interface, as described previously, and set them to be the error and +warning functions at the time that png_create_*_struct() is called, +in order to have them available during the structure initialization. +They can be changed later via png_set_error_fn(). On some compilers, +you may also have to change the memory allocators (png_malloc, etc.). + +.SS Configuring zlib: + +There are special functions to configure the compression. Perhaps the +most useful one changes the compression level, which currently uses +input compression values in the range 0 - 9. The library normally +uses the default compression level (Z_DEFAULT_COMPRESSION = 6). Tests +have shown that for a large majority of images, compression values in +the range 3-6 compress nearly as well as higher levels, and do so much +faster. For online applications it may be desirable to have maximum speed +(Z_BEST_SPEED = 1). With versions of zlib after v0.99, you can also +specify no compression (Z_NO_COMPRESSION = 0), but this would create +files larger than just storing the raw bitmap. You can specify the +compression level by calling: + + #include zlib.h + png_set_compression_level(png_ptr, level); + +Another useful one is to reduce the memory level used by the library. +The memory level defaults to 8, but it can be lowered if you are +short on memory (running DOS, for example, where you only have 640K). +Note that the memory level does have an effect on compression; among +other things, lower levels will result in sections of incompressible +data being emitted in smaller stored blocks, with a correspondingly +larger relative overhead of up to 15% in the worst case. + + #include zlib.h + png_set_compression_mem_level(png_ptr, level); + +The other functions are for configuring zlib. They are not recommended +for normal use and may result in writing an invalid PNG file. See +zlib.h for more information on what these mean. + + #include zlib.h + png_set_compression_strategy(png_ptr, + strategy); + + png_set_compression_window_bits(png_ptr, + window_bits); + + png_set_compression_method(png_ptr, method); + +This controls the size of the IDAT chunks (default 8192): + + png_set_compression_buffer_size(png_ptr, size); + +As of libpng version 1.5.4, additional APIs became +available to set these separately for non-IDAT +compressed chunks such as zTXt, iTXt, and iCCP: + + #include zlib.h + #if PNG_LIBPNG_VER >= 10504 + png_set_text_compression_level(png_ptr, level); + + png_set_text_compression_mem_level(png_ptr, level); + + png_set_text_compression_strategy(png_ptr, + strategy); + + png_set_text_compression_window_bits(png_ptr, + window_bits); + + png_set_text_compression_method(png_ptr, method); + #endif + +.SS Controlling row filtering + +If you want to control whether libpng uses filtering or not, which +filters are used, and how it goes about picking row filters, you +can call one of these functions. The selection and configuration +of row filters can have a significant impact on the size and +encoding speed and a somewhat lesser impact on the decoding speed +of an image. Filtering is enabled by default for RGB and grayscale +images (with and without alpha), but not for paletted images nor +for any images with bit depths less than 8 bits/pixel. + +The 'method' parameter sets the main filtering method, which is +currently only '0' in the PNG 1.2 specification. The 'filters' +parameter sets which filter(s), if any, should be used for each +scanline. Possible values are PNG_ALL_FILTERS and PNG_NO_FILTERS +to turn filtering on and off, respectively. + +Individual filter types are PNG_FILTER_NONE, PNG_FILTER_SUB, +PNG_FILTER_UP, PNG_FILTER_AVG, PNG_FILTER_PAETH, which can be bitwise +ORed together with '|' to specify one or more filters to use. +These filters are described in more detail in the PNG specification. +If you intend to change the filter type during the course of writing +the image, you should start with flags set for all of the filters +you intend to use so that libpng can initialize its internal +structures appropriately for all of the filter types. (Note that this +means the first row must always be adaptively filtered, because libpng +currently does not allocate the filter buffers until png_write_row() +is called for the first time.) + + filters = PNG_FILTER_NONE | PNG_FILTER_SUB + PNG_FILTER_UP | PNG_FILTER_AVG | + PNG_FILTER_PAETH | PNG_ALL_FILTERS; + + png_set_filter(png_ptr, PNG_FILTER_TYPE_BASE, + filters); + The second parameter can also be + PNG_INTRAPIXEL_DIFFERENCING if you are + writing a PNG to be embedded in a MNG + datastream. This parameter must be the + same as the value of filter_method used + in png_set_IHDR(). + +It is also possible to influence how libpng chooses from among the +available filters. This is done in one or both of two ways - by +telling it how important it is to keep the same filter for successive +rows, and by telling it the relative computational costs of the filters. + + double weights[3] = {1.5, 1.3, 1.1}, + costs[PNG_FILTER_VALUE_LAST] = + {1.0, 1.3, 1.3, 1.5, 1.7}; + + png_set_filter_heuristics(png_ptr, + PNG_FILTER_HEURISTIC_WEIGHTED, 3, + weights, costs); + +The weights are multiplying factors that indicate to libpng that the +row filter should be the same for successive rows unless another row filter +is that many times better than the previous filter. In the above example, +if the previous 3 filters were SUB, SUB, NONE, the SUB filter could have a +"sum of absolute differences" 1.5 x 1.3 times higher than other filters +and still be chosen, while the NONE filter could have a sum 1.1 times +higher than other filters and still be chosen. Unspecified weights are +taken to be 1.0, and the specified weights should probably be declining +like those above in order to emphasize recent filters over older filters. + +The filter costs specify for each filter type a relative decoding cost +to be considered when selecting row filters. This means that filters +with higher costs are less likely to be chosen over filters with lower +costs, unless their "sum of absolute differences" is that much smaller. +The costs do not necessarily reflect the exact computational speeds of +the various filters, since this would unduly influence the final image +size. + +Note that the numbers above were invented purely for this example and +are given only to help explain the function usage. Little testing has +been done to find optimum values for either the costs or the weights. + +.SS Requesting debug printout + +The macro definition PNG_DEBUG can be used to request debugging +printout. Set it to an integer value in the range 0 to 3. Higher +numbers result in increasing amounts of debugging information. The +information is printed to the "stderr" file, unless another file +name is specified in the PNG_DEBUG_FILE macro definition. + +When PNG_DEBUG > 0, the following functions (macros) become available: + + png_debug(level, message) + png_debug1(level, message, p1) + png_debug2(level, message, p1, p2) + +in which "level" is compared to PNG_DEBUG to decide whether to print +the message, "message" is the formatted string to be printed, +and p1 and p2 are parameters that are to be embedded in the string +according to printf-style formatting directives. For example, + + png_debug1(2, "foo=%d", foo); + +is expanded to + + if (PNG_DEBUG > 2) + fprintf(PNG_DEBUG_FILE, "foo=%d\en", foo); + +When PNG_DEBUG is defined but is zero, the macros aren't defined, but you +can still use PNG_DEBUG to control your own debugging: + + #ifdef PNG_DEBUG + fprintf(stderr, ... + #endif + +When PNG_DEBUG = 1, the macros are defined, but only png_debug statements +having level = 0 will be printed. There aren't any such statements in +this version of libpng, but if you insert some they will be printed. + +.SH VII. MNG support + +The MNG specification (available at http://www.libpng.org/pub/mng) allows +certain extensions to PNG for PNG images that are embedded in MNG datastreams. +Libpng can support some of these extensions. To enable them, use the +png_permit_mng_features() function: + + feature_set = png_permit_mng_features(png_ptr, mask) + + mask is a png_uint_32 containing the bitwise OR of the + features you want to enable. These include + PNG_FLAG_MNG_EMPTY_PLTE + PNG_FLAG_MNG_FILTER_64 + PNG_ALL_MNG_FEATURES + + feature_set is a png_uint_32 that is the bitwise AND of + your mask with the set of MNG features that is + supported by the version of libpng that you are using. + +It is an error to use this function when reading or writing a standalone +PNG file with the PNG 8-byte signature. The PNG datastream must be wrapped +in a MNG datastream. As a minimum, it must have the MNG 8-byte signature +and the MHDR and MEND chunks. Libpng does not provide support for these +or any other MNG chunks; your application must provide its own support for +them. You may wish to consider using libmng (available at +http://www.libmng.com) instead. + +.SH VIII. Changes to Libpng from version 0.88 + +It should be noted that versions of libpng later than 0.96 are not +distributed by the original libpng author, Guy Schalnat, nor by +Andreas Dilger, who had taken over from Guy during 1996 and 1997, and +distributed versions 0.89 through 0.96, but rather by another member +of the original PNG Group, Glenn Randers-Pehrson. Guy and Andreas are +still alive and well, but they have moved on to other things. + +The old libpng functions png_read_init(), png_write_init(), +png_info_init(), png_read_destroy(), and png_write_destroy() have been +moved to PNG_INTERNAL in version 0.95 to discourage their use. These +functions will be removed from libpng version 1.4.0. + +The preferred method of creating and initializing the libpng structures is +via the png_create_read_struct(), png_create_write_struct(), and +png_create_info_struct() because they isolate the size of the structures +from the application, allow version error checking, and also allow the +use of custom error handling routines during the initialization, which +the old functions do not. The functions png_read_destroy() and +png_write_destroy() do not actually free the memory that libpng +allocated for these structs, but just reset the data structures, so they +can be used instead of png_destroy_read_struct() and +png_destroy_write_struct() if you feel there is too much system overhead +allocating and freeing the png_struct for each image read. + +Setting the error callbacks via png_set_message_fn() before +png_read_init() as was suggested in libpng-0.88 is no longer supported +because this caused applications that do not use custom error functions +to fail if the png_ptr was not initialized to zero. It is still possible +to set the error callbacks AFTER png_read_init(), or to change them with +png_set_error_fn(), which is essentially the same function, but with a new +name to force compilation errors with applications that try to use the old +method. + +Support for the sCAL, iCCP, iTXt, and sPLT chunks was added at libpng-1.0.6; +however, iTXt support was not enabled by default. + +Starting with version 1.0.7, you can find out which version of the library +you are using at run-time: + + png_uint_32 libpng_vn = png_access_version_number(); + +The number libpng_vn is constructed from the major version, minor +version with leading zero, and release number with leading zero, +(e.g., libpng_vn for version 1.0.7 is 10007). + +Note that this function does not take a png_ptr, so you can call it +before you've created one. + +You can also check which version of png.h you used when compiling your +application: + + png_uint_32 application_vn = PNG_LIBPNG_VER; + +.SH IX. Changes to Libpng from version 1.0.x to 1.2.x + +Support for user memory management was enabled by default. To +accomplish this, the functions png_create_read_struct_2(), +png_create_write_struct_2(), png_set_mem_fn(), png_get_mem_ptr(), +png_malloc_default(), and png_free_default() were added. + +Support for the iTXt chunk has been enabled by default as of +version 1.2.41. + +Support for certain MNG features was enabled. + +Support for numbered error messages was added. However, we never got +around to actually numbering the error messages. The function +png_set_strip_error_numbers() was added (Note: the prototype for this +function was inadvertently removed from png.h in PNG_NO_ASSEMBLER_CODE +builds of libpng-1.2.15. It was restored in libpng-1.2.36). + +The png_malloc_warn() function was added at libpng-1.2.3. This issues +a png_warning and returns NULL instead of aborting when it fails to +acquire the requested memory allocation. + +Support for setting user limits on image width and height was enabled +by default. The functions png_set_user_limits(), png_get_user_width_max(), +and png_get_user_height_max() were added at libpng-1.2.6. + +The png_set_add_alpha() function was added at libpng-1.2.7. + +The function png_set_expand_gray_1_2_4_to_8() was added at libpng-1.2.9. +Unlike png_set_gray_1_2_4_to_8(), the new function does not expand the +tRNS chunk to alpha. The png_set_gray_1_2_4_to_8() function is +deprecated. + +A number of macro definitions in support of runtime selection of +assembler code features (especially Intel MMX code support) were +added at libpng-1.2.0: + + PNG_ASM_FLAG_MMX_SUPPORT_COMPILED + PNG_ASM_FLAG_MMX_SUPPORT_IN_CPU + PNG_ASM_FLAG_MMX_READ_COMBINE_ROW + PNG_ASM_FLAG_MMX_READ_INTERLACE + PNG_ASM_FLAG_MMX_READ_FILTER_SUB + PNG_ASM_FLAG_MMX_READ_FILTER_UP + PNG_ASM_FLAG_MMX_READ_FILTER_AVG + PNG_ASM_FLAG_MMX_READ_FILTER_PAETH + PNG_ASM_FLAGS_INITIALIZED + PNG_MMX_READ_FLAGS + PNG_MMX_FLAGS + PNG_MMX_WRITE_FLAGS + PNG_MMX_FLAGS + +We added the following functions in support of runtime +selection of assembler code features: + + png_get_mmx_flagmask() + png_set_mmx_thresholds() + png_get_asm_flags() + png_get_mmx_bitdepth_threshold() + png_get_mmx_rowbytes_threshold() + png_set_asm_flags() + +We replaced all of these functions with simple stubs in libpng-1.2.20, +when the Intel assembler code was removed due to a licensing issue. + +These macros are deprecated: + + PNG_READ_TRANSFORMS_NOT_SUPPORTED + PNG_PROGRESSIVE_READ_NOT_SUPPORTED + PNG_NO_SEQUENTIAL_READ_SUPPORTED + PNG_WRITE_TRANSFORMS_NOT_SUPPORTED + PNG_READ_ANCILLARY_CHUNKS_NOT_SUPPORTED + PNG_WRITE_ANCILLARY_CHUNKS_NOT_SUPPORTED + +They have been replaced, respectively, by: + + PNG_NO_READ_TRANSFORMS + PNG_NO_PROGRESSIVE_READ + PNG_NO_SEQUENTIAL_READ + PNG_NO_WRITE_TRANSFORMS + PNG_NO_READ_ANCILLARY_CHUNKS + PNG_NO_WRITE_ANCILLARY_CHUNKS + +PNG_MAX_UINT was replaced with PNG_UINT_31_MAX. It has been +deprecated since libpng-1.0.16 and libpng-1.2.6. + +The function + png_check_sig(sig, num) +was replaced with + !png_sig_cmp(sig, 0, num) +It has been deprecated since libpng-0.90. + +The function + png_set_gray_1_2_4_to_8() +which also expands tRNS to alpha was replaced with + png_set_expand_gray_1_2_4_to_8() +which does not. It has been deprecated since libpng-1.0.18 and 1.2.9. + +.SH X. Changes to Libpng from version 1.0.x/1.2.x to 1.4.x + +Private libpng prototypes and macro definitions were moved from +png.h and pngconf.h into a new pngpriv.h header file. + +Functions png_set_benign_errors(), png_benign_error(), and +png_chunk_benign_error() were added. + +Support for setting the maximum amount of memory that the application +will allocate for reading chunks was added, as a security measure. +The functions png_set_chunk_cache_max() and png_get_chunk_cache_max() +were added to the library. + +We implemented support for I/O states by adding png_ptr member io_state +and functions png_get_io_chunk_name() and png_get_io_state() in pngget.c + +We added PNG_TRANSFORM_GRAY_TO_RGB to the available high-level +input transforms. + +Checking for and reporting of errors in the IHDR chunk is more thorough. + +Support for global arrays was removed, to improve thread safety. + +Some obsolete/deprecated macros and functions have been removed. + +Typecasted NULL definitions such as + #define png_voidp_NULL (png_voidp)NULL +were eliminated. If you used these in your application, just use +NULL instead. + +The png_struct and info_struct members "trans" and "trans_values" were +changed to "trans_alpha" and "trans_color", respectively. + +The obsolete, unused pnggccrd.c and pngvcrd.c files and related makefiles +were removed. + +The PNG_1_0_X and PNG_1_2_X macros were eliminated. + +The PNG_LEGACY_SUPPORTED macro was eliminated. + +Many WIN32_WCE #ifdefs were removed. + +The functions png_read_init(info_ptr), png_write_init(info_ptr), +png_info_init(info_ptr), png_read_destroy(), and png_write_destroy() +have been removed. They have been deprecated since libpng-0.95. + +The png_permit_empty_plte() was removed. It has been deprecated +since libpng-1.0.9. Use png_permit_mng_features() instead. + +We removed the obsolete stub functions png_get_mmx_flagmask(), +png_set_mmx_thresholds(), png_get_asm_flags(), +png_get_mmx_bitdepth_threshold(), png_get_mmx_rowbytes_threshold(), +png_set_asm_flags(), and png_mmx_supported() + +We removed the obsolete png_check_sig(), png_memcpy_check(), and +png_memset_check() functions. Instead use !png_sig_cmp(), memcpy(), +and memset(), respectively. + +The function png_set_gray_1_2_4_to_8() was removed. It has been +deprecated since libpng-1.0.18 and 1.2.9, when it was replaced with +png_set_expand_gray_1_2_4_to_8() because the former function also +expanded any tRNS chunk to an alpha channel. + +Macros for png_get_uint_16, png_get_uint_32, and png_get_int_32 +were added and are used by default instead of the corresponding +functions. Unfortunately, +from libpng-1.4.0 until 1.4.4, the png_get_uint_16 macro (but not the +function) incorrectly returned a value of type png_uint_32. + +We changed the prototype for png_malloc() from + png_malloc(png_structp png_ptr, png_uint_32 size) +to + png_malloc(png_structp png_ptr, png_alloc_size_t size) + +This also applies to the prototype for the user replacement malloc_fn(). + +The png_calloc() function was added and is used in place of +of "png_malloc(); memset();" except in the case in png_read_png() +where the array consists of pointers; in this case a "for" loop is used +after the png_malloc() to set the pointers to NULL, to give robust. +behavior in case the application runs out of memory part-way through +the process. + +We changed the prototypes of png_get_compression_buffer_size() and +png_set_compression_buffer_size() to work with png_size_t instead of +png_uint_32. + +Support for numbered error messages was removed by default, since we +never got around to actually numbering the error messages. The function +png_set_strip_error_numbers() was removed from the library by default. + +The png_zalloc() and png_zfree() functions are no longer exported. +The png_zalloc() function no longer zeroes out the memory that it +allocates. Applications that called png_zalloc(png_ptr, number, size) +can call png_calloc(png_ptr, number*size) instead, and can call +png_free() instead of png_zfree(). + +Support for dithering was disabled by default in libpng-1.4.0, because +it has not been well tested and doesn't actually "dither". +The code was not +removed, however, and could be enabled by building libpng with +PNG_READ_DITHER_SUPPORTED defined. In libpng-1.4.2, this support +was re-enabled, but the function was renamed png_set_quantize() to +reflect more accurately what it actually does. At the same time, +the PNG_DITHER_[RED,GREEN_BLUE]_BITS macros were also renamed to +PNG_QUANTIZE_[RED,GREEN,BLUE]_BITS, and PNG_READ_DITHER_SUPPORTED +was renamed to PNG_READ_QUANTIZE_SUPPORTED. + +We removed the trailing '.' from the warning and error messages. + +.SH XI. Changes to Libpng from version 1.4.x to 1.5.x + +From libpng-1.4.0 until 1.4.4, the png_get_uint_16 macro (but not the +function) incorrectly returned a value of type png_uint_32. +The incorrect macro was removed from libpng-1.4.5. + +Checking for invalid palette index on write was added at libpng +1.5.10. If a pixel contains an invalid (out-of-range) index libpng issues +a benign error. This is enabled by default because this condition is an +error according to the PNG specification, Clause 11.3.2, but the error can +be ignored in each png_ptr with + + png_set_check_for_invalid_index(png_ptr, allowed); + + allowed - one of + 0: disable benign error (accept the + invalid data without warning). + 1: enable benign error (treat the + invalid data as an error or a + warning). + +If the error is ignored, or if png_benign_error() treats it as a warning, +any invalid pixels are decoded as opaque black by the decoder and written +as-is by the encoder. + +Retrieving the maximum palette index found was added at libpng-1.5.15. +This statement must appear after png_read_png() or png_read_image() while +reading, and after png_write_png() or png_write_image() while writing. + + int max_palette = png_get_palette_max(png_ptr, info_ptr); + +This will return the maximum palette index found in the image, or "\-1" if +the palette was not checked, or "0" if no palette was found. Note that this +does not account for any palette index used by ancillary chunks such as the +bKGD chunk; you must check those separately to determine the maximum +palette index actually used. + +There are no substantial API changes between the non-deprecated parts of +the 1.4.5 API and the 1.5.0 API; however, the ability to directly access +members of the main libpng control structures, png_struct and png_info, +deprecated in earlier versions of libpng, has been completely removed from +libpng 1.5. + +We no longer include zlib.h in png.h. The include statement has been moved +to pngstruct.h, where it is not accessible by applications. Applications that +need access to information in zlib.h will need to add the '#include "zlib.h"' +directive. It does not matter whether this is placed prior to or after +the '"#include png.h"' directive. + +The png_sprintf(), png_strcpy(), and png_strncpy() macros are no longer used +and were removed. + +We moved the png_strlen(), png_memcpy(), png_memset(), and png_memcmp() +macros into a private header file (pngpriv.h) that is not accessible to +applications. + +In png_get_iCCP, the type of "profile" was changed from png_charpp +to png_bytepp, and in png_set_iCCP, from png_charp to png_const_bytep. + +There are changes of form in png.h, including new and changed macros to +declare parts of the API. Some API functions with arguments that are +pointers to data not modified within the function have been corrected to +declare these arguments with PNG_CONST. + +Much of the internal use of C macros to control the library build has also +changed and some of this is visible in the exported header files, in +particular the use of macros to control data and API elements visible +during application compilation may require significant revision to +application code. (It is extremely rare for an application to do this.) + +Any program that compiled against libpng 1.4 and did not use deprecated +features or access internal library structures should compile and work +against libpng 1.5, except for the change in the prototype for +png_get_iCCP() and png_set_iCCP() API functions mentioned above. + +libpng 1.5.0 adds PNG_ PASS macros to help in the reading and writing of +interlaced images. The macros return the number of rows and columns in +each pass and information that can be used to de-interlace and (if +absolutely necessary) interlace an image. + +libpng 1.5.0 adds an API png_longjmp(png_ptr, value). This API calls +the application-provided png_longjmp_ptr on the internal, but application +initialized, longjmp buffer. It is provided as a convenience to avoid +the need to use the png_jmpbuf macro, which had the unnecessary side +effect of resetting the internal png_longjmp_ptr value. + +libpng 1.5.0 includes a complete fixed point API. By default this is +present along with the corresponding floating point API. In general the +fixed point API is faster and smaller than the floating point one because +the PNG file format used fixed point, not floating point. This applies +even if the library uses floating point in internal calculations. A new +macro, PNG_FLOATING_ARITHMETIC_SUPPORTED, reveals whether the library +uses floating point arithmetic (the default) or fixed point arithmetic +internally for performance critical calculations such as gamma correction. +In some cases, the gamma calculations may produce slightly different +results. This has changed the results in png_rgb_to_gray and in alpha +composition (png_set_background for example). This applies even if the +original image was already linear (gamma == 1.0) and, therefore, it is +not necessary to linearize the image. This is because libpng has *not* +been changed to optimize that case correctly, yet. + +Fixed point support for the sCAL chunk comes with an important caveat; +the sCAL specification uses a decimal encoding of floating point values +and the accuracy of PNG fixed point values is insufficient for +representation of these values. Consequently a "string" API +(png_get_sCAL_s and png_set_sCAL_s) is the only reliable way of reading +arbitrary sCAL chunks in the absence of either the floating point API or +internal floating point calculations. Starting with libpng-1.5.0, both +of these functions are present when PNG_sCAL_SUPPORTED is defined. Prior +to libpng-1.5.0, their presence also depended upon PNG_FIXED_POINT_SUPPORTED +being defined and PNG_FLOATING_POINT_SUPPORTED not being defined. + +Applications no longer need to include the optional distribution header +file pngusr.h or define the corresponding macros during application +build in order to see the correct variant of the libpng API. From 1.5.0 +application code can check for the corresponding _SUPPORTED macro: + +#ifdef PNG_INCH_CONVERSIONS_SUPPORTED + /* code that uses the inch conversion APIs. */ +#endif + +This macro will only be defined if the inch conversion functions have been +compiled into libpng. The full set of macros, and whether or not support +has been compiled in, are available in the header file pnglibconf.h. +This header file is specific to the libpng build. Notice that prior to +1.5.0 the _SUPPORTED macros would always have the default definition unless +reset by pngusr.h or by explicit settings on the compiler command line. +These settings may produce compiler warnings or errors in 1.5.0 because +of macro redefinition. + +Applications can now choose whether to use these macros or to call the +corresponding function by defining PNG_USE_READ_MACROS or +PNG_NO_USE_READ_MACROS before including png.h. Notice that this is +only supported from 1.5.0; defining PNG_NO_USE_READ_MACROS prior to 1.5.0 +will lead to a link failure. + +Prior to libpng-1.5.4, the zlib compressor used the same set of parameters +when compressing the IDAT data and textual data such as zTXt and iCCP. +In libpng-1.5.4 we reinitialized the zlib stream for each type of data. +We added five png_set_text_*() functions for setting the parameters to +use with textual data. + +Prior to libpng-1.5.4, the PNG_READ_16_TO_8_ACCURATE_SCALE_SUPPORTED +option was off by default, and slightly inaccurate scaling occurred. +This option can no longer be turned off, and the choice of accurate +or inaccurate 16-to-8 scaling is by using the new png_set_scale_16_to_8() +API for accurate scaling or the old png_set_strip_16_to_8() API for simple +chopping. In libpng-1.5.4, the PNG_READ_16_TO_8_ACCURATE_SCALE_SUPPORTED +macro became PNG_READ_SCALE_16_TO_8_SUPPORTED, and the PNG_READ_16_TO_8 +macro became PNG_READ_STRIP_16_TO_8_SUPPORTED, to enable the two +png_set_*_16_to_8() functions separately. + +Prior to libpng-1.5.4, the png_set_user_limits() function could only be +used to reduce the width and height limits from the value of +PNG_USER_WIDTH_MAX and PNG_USER_HEIGHT_MAX, although this document said +that it could be used to override them. Now this function will reduce or +increase the limits. + +Starting in libpng-1.5.10, the user limits can be set en masse with the +configuration option PNG_SAFE_LIMITS_SUPPORTED. If this option is enabled, +a set of "safe" limits is applied in pngpriv.h. These can be overridden by +application calls to png_set_user_limits(), png_set_user_chunk_cache_max(), +and/or png_set_user_malloc_max() that increase or decrease the limits. Also, +in libpng-1.5.10 the default width and height limits were increased +from 1,000,000 to 0x7ffffff (i.e., made unlimited). Therefore, the +limits are now + default safe + png_user_width_max 0x7fffffff 1,000,000 + png_user_height_max 0x7fffffff 1,000,000 + png_user_chunk_cache_max 0 (unlimited) 128 + png_user_chunk_malloc_max 0 (unlimited) 8,000,000 + +The png_set_option() function (and the "options" member of the png struct) was +added to libpng-1.5.15. + +The library now supports a complete fixed point implementation and can +thus be used on systems that have no floating point support or very +limited or slow support. Previously gamma correction, an essential part +of complete PNG support, required reasonably fast floating point. + +As part of this the choice of internal implementation has been made +independent of the choice of fixed versus floating point APIs and all the +missing fixed point APIs have been implemented. + +The exact mechanism used to control attributes of API functions has +changed, as described in the INSTALL file. + +A new test program, pngvalid, is provided in addition to pngtest. +pngvalid validates the arithmetic accuracy of the gamma correction +calculations and includes a number of validations of the file format. +A subset of the full range of tests is run when "make check" is done +(in the 'configure' build.) pngvalid also allows total allocated memory +usage to be evaluated and performs additional memory overwrite validation. + +Many changes to individual feature macros have been made. The following +are the changes most likely to be noticed by library builders who +configure libpng: + +1) All feature macros now have consistent naming: + +#define PNG_NO_feature turns the feature off +#define PNG_feature_SUPPORTED turns the feature on + +pnglibconf.h contains one line for each feature macro which is either: + +#define PNG_feature_SUPPORTED + +if the feature is supported or: + +/*#undef PNG_feature_SUPPORTED*/ + +if it is not. Library code consistently checks for the 'SUPPORTED' macro. +It does not, and libpng applications should not, check for the 'NO' macro +which will not normally be defined even if the feature is not supported. +The 'NO' macros are only used internally for setting or not setting the +corresponding 'SUPPORTED' macros. + +Compatibility with the old names is provided as follows: + +PNG_INCH_CONVERSIONS turns on PNG_INCH_CONVERSIONS_SUPPORTED + +And the following definitions disable the corresponding feature: + +PNG_SETJMP_NOT_SUPPORTED disables SETJMP +PNG_READ_TRANSFORMS_NOT_SUPPORTED disables READ_TRANSFORMS +PNG_NO_READ_COMPOSITED_NODIV disables READ_COMPOSITE_NODIV +PNG_WRITE_TRANSFORMS_NOT_SUPPORTED disables WRITE_TRANSFORMS +PNG_READ_ANCILLARY_CHUNKS_NOT_SUPPORTED disables READ_ANCILLARY_CHUNKS +PNG_WRITE_ANCILLARY_CHUNKS_NOT_SUPPORTED disables WRITE_ANCILLARY_CHUNKS + +Library builders should remove use of the above, inconsistent, names. + +2) Warning and error message formatting was previously conditional on +the STDIO feature. The library has been changed to use the +CONSOLE_IO feature instead. This means that if CONSOLE_IO is disabled +the library no longer uses the printf(3) functions, even though the +default read/write implementations use (FILE) style stdio.h functions. + +3) Three feature macros now control the fixed/floating point decisions: + +PNG_FLOATING_POINT_SUPPORTED enables the floating point APIs + +PNG_FIXED_POINT_SUPPORTED enables the fixed point APIs; however, in +practice these are normally required internally anyway (because the PNG +file format is fixed point), therefore in most cases PNG_NO_FIXED_POINT +merely stops the function from being exported. + +PNG_FLOATING_ARITHMETIC_SUPPORTED chooses between the internal floating +point implementation or the fixed point one. Typically the fixed point +implementation is larger and slower than the floating point implementation +on a system that supports floating point; however, it may be faster on a +system which lacks floating point hardware and therefore uses a software +emulation. + +4) Added PNG_{READ,WRITE}_INT_FUNCTIONS_SUPPORTED. This allows the +functions to read and write ints to be disabled independently of +PNG_USE_READ_MACROS, which allows libpng to be built with the functions +even though the default is to use the macros - this allows applications +to choose at app buildtime whether or not to use macros (previously +impossible because the functions weren't in the default build.) + +.SH XII. Changes to Libpng from version 1.5.x to 1.6.x + +A "simplified API" has been added (see documentation in png.h and a simple +example in contrib/examples/pngtopng.c). The new publicly visible API +includes the following: + + macros: + PNG_FORMAT_* + PNG_IMAGE_* + structures: + png_control + png_image + read functions + png_image_begin_read_from_file() + png_image_begin_read_from_stdio() + png_image_begin_read_from_memory() + png_image_finish_read() + png_image_free() + write functions + png_image_write_to_file() + png_image_write_to_stdio() + +Starting with libpng-1.6.0, you can configure libpng to prefix all exported +symbols, using the PNG_PREFIX macro. + +We no longer include string.h in png.h. The include statement has been moved +to pngpriv.h, where it is not accessible by applications. Applications that +need access to information in string.h must add an '#include ' +directive. It does not matter whether this is placed prior to or after +the '#include "png.h"' directive. + +The following API are now DEPRECATED: + png_info_init_3() + png_convert_to_rfc1123() which has been replaced + with png_convert_to_rfc1123_buffer() + png_malloc_default() + png_free_default() + png_reset_zstream() + +The following have been removed: + png_get_io_chunk_name(), which has been replaced + with png_get_io_chunk_type(). The new + function returns a 32-bit integer instead of + a string. + The png_sizeof(), png_strlen(), png_memcpy(), png_memcmp(), and + png_memset() macros are no longer used in the libpng sources and + have been removed. These had already been made invisible to applications + (i.e., defined in the private pngpriv.h header file) since libpng-1.5.0. + +The signatures of many exported functions were changed, such that + png_structp became png_structrp or png_const_structrp + png_infop became png_inforp or png_const_inforp +where "rp" indicates a "restricted pointer". + +Error detection in some chunks has improved; in particular the iCCP chunk +reader now does pretty complete validation of the basic format. Some bad +profiles that were previously accepted are now accepted with a warning or +rejected, depending upon the png_set_benign_errors() setting, in particular the +very old broken Microsoft/HP 3144-byte sRGB profile. Starting with +libpng-1.6.11, recognizing and checking sRGB profiles can be avoided by +means of + + #ifdef PNG_SKIP_sRGB_CHECK_PROFILE + png_set_option(png_ptr, PNG_SKIP_sRGB_CHECK_PROFILE, + PNG_OPTION_ON); + #endif + +It's not a good idea to do this if you are using the "simplified API", +which needs to be able to recognize an sRGB profile conveyed via the iCCP +chunk. + +The PNG spec requirement that only grayscale profiles may appear in images +with color type 0 or 4 and that even if the image only contains gray pixels, +only RGB profiles may appear in images with color type 2, 3, or 6, is now +enforced. The sRGB chunk is allowed to appear in images with any color type +and is interpreted by libpng to convey a one-tracer-curve profile or a +three-tracer-curve profile as appropriate. + +Prior to libpng-1.6.0 a warning would be issued if the iTXt chunk contained +an empty language field or an empty translated keyword. Both of these +are allowed by the PNG specification, so these warnings are no longer issued. + +The library now issues an error if the application attempts to set a +transform after it calls png_read_update_info() or if it attempts to call +both png_read_update_info() and png_start_read_image() or to call either +of them more than once. + +The default condition for benign_errors is now to treat benign errors as +warnings while reading and as errors while writing. + +The library now issues a warning if both background processing and RGB to +gray are used when gamma correction happens. As with previous versions of +the library the results are numerically very incorrect in this case. + +There are some minor arithmetic changes in some transforms such as +png_set_background(), that might be detected by certain regression tests. + +Unknown chunk handling has been improved internally, without any API change. +This adds more correct option control of the unknown handling, corrects +a pre-existing bug where the per-chunk 'keep' setting is ignored, and makes +it possible to skip IDAT chunks in the sequential reader. + +The machine-generated configure files are no longer included in branches +libpng16 and later of the GIT repository. They continue to be included +in the tarball releases, however. + +Libpng-1.6.0 through 1.6.2 used the CMF bytes at the beginning of the IDAT +stream to set the size of the sliding window for reading instead of using the +default 32-kbyte sliding window size. It was discovered that there are +hundreds of PNG files in the wild that have incorrect CMF bytes that caused +zlib to issue the "invalid distance too far back" error and reject the file. +Libpng-1.6.3 and later calculate their own safe CMF from the image dimensions, +provide a way to revert to the libpng-1.5.x behavior (ignoring the CMF bytes +and using a 32-kbyte sliding window), by using + + png_set_option(png_ptr, PNG_MAXIMUM_INFLATE_WINDOW, + PNG_OPTION_ON); + +and provide a tool (contrib/tools/pngfix) for rewriting a PNG file while +optimizing the CMF bytes in its IDAT chunk correctly. + +Libpng-1.6.0 and libpng-1.6.1 wrote uncompressed iTXt chunks with the wrong +length, which resulted in PNG files that cannot be read beyond the bad iTXt +chunk. This error was fixed in libpng-1.6.3, and a tool (called +contrib/tools/png-fix-itxt) has been added to the libpng distribution. + +.SH XIII. Detecting libpng + +The png_get_io_ptr() function has been present since libpng-0.88, has never +changed, and is unaffected by conditional compilation macros. It is the +best choice for use in configure scripts for detecting the presence of any +libpng version since 0.88. In an autoconf "configure.in" you could use + + AC_CHECK_LIB(png, png_get_io_ptr, ... + +.SH XV. Source code repository + +Since about February 2009, version 1.2.34, libpng has been under "git" source +control. The git repository was built from old libpng-x.y.z.tar.gz files +going back to version 0.70. You can access the git repository (read only) +at + + git://git.code.sf.net/p/libpng/code + +or you can browse it with a web browser by selecting the "code" button at + + https://sourceforge.net/projects/libpng + +Patches can be sent to glennrp at users.sourceforge.net or to +png-mng-implement at lists.sourceforge.net or you can upload them to +the libpng bug tracker at + + http://libpng.sourceforge.net + +We also accept patches built from the tar or zip distributions, and +simple verbal discriptions of bug fixes, reported either to the +SourceForge bug tracker, to the png-mng-implement at lists.sf.net +mailing list, or directly to glennrp. + +.SH XV. Coding style + +Our coding style is similar to the "Allman" style +(See http://en.wikipedia.org/wiki/Indent_style#Allman_style), with curly +braces on separate lines: + + if (condition) + { + action; + } + + else if (another condition) + { + another action; + } + +The braces can be omitted from simple one-line actions: + + if (condition) + return (0); + +We use 3-space indentation, except for continued statements which +are usually indented the same as the first line of the statement +plus four more spaces. + +For macro definitions we use 2-space indentation, always leaving the "#" +in the first column. + + #ifndef PNG_NO_FEATURE + # ifndef PNG_FEATURE_SUPPORTED + # define PNG_FEATURE_SUPPORTED + # endif + #endif + +Comments appear with the leading "/*" at the same indentation as +the statement that follows the comment: + + /* Single-line comment */ + statement; + + /* This is a multiple-line + * comment. + */ + statement; + +Very short comments can be placed after the end of the statement +to which they pertain: + + statement; /* comment */ + +We don't use C++ style ("//") comments. We have, however, +used them in the past in some now-abandoned MMX assembler +code. + +Functions and their curly braces are not indented, and +exported functions are marked with PNGAPI: + + /* This is a public function that is visible to + * application programmers. It does thus-and-so. + */ + void PNGAPI + png_exported_function(png_ptr, png_info, foo) + { + body; + } + +The return type and decorations are placed on a separate line +ahead of the function name, as illustrated above. + +The prototypes for all exported functions appear in png.h, +above the comment that says + + /* Maintainer: Put new public prototypes here ... */ + +We mark all non-exported functions with "/* PRIVATE */"": + + void /* PRIVATE */ + png_non_exported_function(png_ptr, png_info, foo) + { + body; + } + +The prototypes for non-exported functions (except for those in +pngtest) appear in +pngpriv.h +above the comment that says + + /* Maintainer: Put new private prototypes here ^ */ + +We put a space after the "sizeof" operator and we omit the +optional parentheses around its argument when the argument +is an expression, not a type name, and we always enclose the +sizeof operator, with its argument, in parentheses: + + (sizeof (png_uint_32)) + (sizeof array) + +Prior to libpng-1.6.0 we used a "png_sizeof()" macro, formatted as +though it were a function. + +To avoid polluting the global namespace, the names of all exported +functions and variables begin with "png_", and all publicly visible C +preprocessor macros begin with "PNG". We request that applications that +use libpng *not* begin any of their own symbols with either of these strings. + +We put a space after each comma and after each semicolon +in "for" statements, and we put spaces before and after each +C binary operator and after "for" or "while", and before +"?". We don't put a space between a typecast and the expression +being cast, nor do we put one between a function name and the +left parenthesis that follows it: + + for (i = 2; i > 0; \-\-i) + y[i] = a(x) + (int)b; + +We prefer #ifdef and #ifndef to #if defined() and #if !defined() +when there is only one macro being tested. We always use parentheses +with "defined". + +We prefer to express integers that are used as bit masks in hex format, +with an even number of lower-case hex digits (e.g., 0x00, 0xff, 0x0100). + +We prefer to use underscores in variable names rather than camelCase, except +for a few type names that we inherit from zlib.h. + +We prefer "if (something != 0)" and "if (something == 0)" +over "if (something)" and if "(!something)", respectively. + +We do not use the TAB character for indentation in the C sources. + +Lines do not exceed 80 characters. + +Other rules can be inferred by inspecting the libpng source. + +.SH XVI. Y2K Compliance in libpng + +June 12, 2014 + +Since the PNG Development group is an ad-hoc body, we can't make +an official declaration. + +This is your unofficial assurance that libpng from version 0.71 and +upward through 1.6.12 are Y2K compliant. It is my belief that earlier +versions were also Y2K compliant. + +Libpng only has two year fields. One is a 2-byte unsigned integer +that will hold years up to 65535. The other, which is deprecated, +holds the date in text format, and will hold years up to 9999. + +The integer is + "png_uint_16 year" in png_time_struct. + +The string is + "char time_buffer[29]" in png_struct. This is no longer used +in libpng-1.6.x and will be removed from libpng-1.7.0. + +There are seven time-related functions: + + png_convert_to_rfc_1123() in png.c + (formerly png_convert_to_rfc_1152() in error) + png_convert_from_struct_tm() in pngwrite.c, called + in pngwrite.c + png_convert_from_time_t() in pngwrite.c + png_get_tIME() in pngget.c + png_handle_tIME() in pngrutil.c, called in pngread.c + png_set_tIME() in pngset.c + png_write_tIME() in pngwutil.c, called in pngwrite.c + +All appear to handle dates properly in a Y2K environment. The +png_convert_from_time_t() function calls gmtime() to convert from system +clock time, which returns (year - 1900), which we properly convert to +the full 4-digit year. There is a possibility that applications using +libpng are not passing 4-digit years into the png_convert_to_rfc_1123() +function, or that they are incorrectly passing only a 2-digit year +instead of "year - 1900" into the png_convert_from_struct_tm() function, +but this is not under our control. The libpng documentation has always +stated that it works with 4-digit years, and the APIs have been +documented as such. + +The tIME chunk itself is also Y2K compliant. It uses a 2-byte unsigned +integer to hold the year, and can hold years as large as 65535. + +zlib, upon which libpng depends, is also Y2K compliant. It contains +no date-related code. + + + Glenn Randers-Pehrson + libpng maintainer + PNG Development Group + +.SH NOTE + +Note about libpng version numbers: + +Due to various miscommunications, unforeseen code incompatibilities +and occasional factors outside the authors' control, version numbering +on the library has not always been consistent and straightforward. +The following table summarizes matters since version 0.89c, which was +the first widely used release: + + source png.h png.h shared-lib + version string int version + ------- ------ ----- ---------- + 0.89c ("beta 3") 0.89 89 1.0.89 + 0.90 ("beta 4") 0.90 90 0.90 + 0.95 ("beta 5") 0.95 95 0.95 + 0.96 ("beta 6") 0.96 96 0.96 + 0.97b ("beta 7") 1.00.97 97 1.0.1 + 0.97c 0.97 97 2.0.97 + 0.98 0.98 98 2.0.98 + 0.99 0.99 98 2.0.99 + 0.99a-m 0.99 99 2.0.99 + 1.00 1.00 100 2.1.0 + 1.0.0 1.0.0 100 2.1.0 + 1.0.0 (from here on, the 100 2.1.0 + 1.0.1 png.h string is 10001 2.1.0 + 1.0.1a-e identical to the 10002 from here on, the + 1.0.2 source version) 10002 shared library is 2.V + 1.0.2a-b 10003 where V is the source + 1.0.1 10001 code version except as + 1.0.1a-e 10002 2.1.0.1a-e noted. + 1.0.2 10002 2.1.0.2 + 1.0.2a-b 10003 2.1.0.2a-b + 1.0.3 10003 2.1.0.3 + 1.0.3a-d 10004 2.1.0.3a-d + 1.0.4 10004 2.1.0.4 + 1.0.4a-f 10005 2.1.0.4a-f + 1.0.5 (+ 2 patches) 10005 2.1.0.5 + 1.0.5a-d 10006 2.1.0.5a-d + 1.0.5e-r 10100 2.1.0.5e-r + 1.0.5s-v 10006 2.1.0.5s-v + 1.0.6 (+ 3 patches) 10006 2.1.0.6 + 1.0.6d-g 10007 2.1.0.6d-g + 1.0.6h 10007 10.6h + 1.0.6i 10007 10.6i + 1.0.6j 10007 2.1.0.6j + 1.0.7beta11-14 DLLNUM 10007 2.1.0.7beta11-14 + 1.0.7beta15-18 1 10007 2.1.0.7beta15-18 + 1.0.7rc1-2 1 10007 2.1.0.7rc1-2 + 1.0.7 1 10007 2.1.0.7 + 1.0.8beta1-4 1 10008 2.1.0.8beta1-4 + 1.0.8rc1 1 10008 2.1.0.8rc1 + 1.0.8 1 10008 2.1.0.8 + 1.0.9beta1-6 1 10009 2.1.0.9beta1-6 + 1.0.9rc1 1 10009 2.1.0.9rc1 + 1.0.9beta7-10 1 10009 2.1.0.9beta7-10 + 1.0.9rc2 1 10009 2.1.0.9rc2 + 1.0.9 1 10009 2.1.0.9 + 1.0.10beta1 1 10010 2.1.0.10beta1 + 1.0.10rc1 1 10010 2.1.0.10rc1 + 1.0.10 1 10010 2.1.0.10 + 1.0.11beta1-3 1 10011 2.1.0.11beta1-3 + 1.0.11rc1 1 10011 2.1.0.11rc1 + 1.0.11 1 10011 2.1.0.11 + 1.0.12beta1-2 2 10012 2.1.0.12beta1-2 + 1.0.12rc1 2 10012 2.1.0.12rc1 + 1.0.12 2 10012 2.1.0.12 + 1.1.0a-f - 10100 2.1.1.0a-f abandoned + 1.2.0beta1-2 2 10200 2.1.2.0beta1-2 + 1.2.0beta3-5 3 10200 3.1.2.0beta3-5 + 1.2.0rc1 3 10200 3.1.2.0rc1 + 1.2.0 3 10200 3.1.2.0 + 1.2.1beta-4 3 10201 3.1.2.1beta1-4 + 1.2.1rc1-2 3 10201 3.1.2.1rc1-2 + 1.2.1 3 10201 3.1.2.1 + 1.2.2beta1-6 12 10202 12.so.0.1.2.2beta1-6 + 1.0.13beta1 10 10013 10.so.0.1.0.13beta1 + 1.0.13rc1 10 10013 10.so.0.1.0.13rc1 + 1.2.2rc1 12 10202 12.so.0.1.2.2rc1 + 1.0.13 10 10013 10.so.0.1.0.13 + 1.2.2 12 10202 12.so.0.1.2.2 + 1.2.3rc1-6 12 10203 12.so.0.1.2.3rc1-6 + 1.2.3 12 10203 12.so.0.1.2.3 + 1.2.4beta1-3 13 10204 12.so.0.1.2.4beta1-3 + 1.2.4rc1 13 10204 12.so.0.1.2.4rc1 + 1.0.14 10 10014 10.so.0.1.0.14 + 1.2.4 13 10204 12.so.0.1.2.4 + 1.2.5beta1-2 13 10205 12.so.0.1.2.5beta1-2 + 1.0.15rc1 10 10015 10.so.0.1.0.15rc1 + 1.0.15 10 10015 10.so.0.1.0.15 + 1.2.5 13 10205 12.so.0.1.2.5 + 1.2.6beta1-4 13 10206 12.so.0.1.2.6beta1-4 + 1.2.6rc1-5 13 10206 12.so.0.1.2.6rc1-5 + 1.0.16 10 10016 10.so.0.1.0.16 + 1.2.6 13 10206 12.so.0.1.2.6 + 1.2.7beta1-2 13 10207 12.so.0.1.2.7beta1-2 + 1.0.17rc1 10 10017 12.so.0.1.0.17rc1 + 1.2.7rc1 13 10207 12.so.0.1.2.7rc1 + 1.0.17 10 10017 12.so.0.1.0.17 + 1.2.7 13 10207 12.so.0.1.2.7 + 1.2.8beta1-5 13 10208 12.so.0.1.2.8beta1-5 + 1.0.18rc1-5 10 10018 12.so.0.1.0.18rc1-5 + 1.2.8rc1-5 13 10208 12.so.0.1.2.8rc1-5 + 1.0.18 10 10018 12.so.0.1.0.18 + 1.2.8 13 10208 12.so.0.1.2.8 + 1.2.9beta1-3 13 10209 12.so.0.1.2.9beta1-3 + 1.2.9beta4-11 13 10209 12.so.0.9[.0] + 1.2.9rc1 13 10209 12.so.0.9[.0] + 1.2.9 13 10209 12.so.0.9[.0] + 1.2.10beta1-7 13 10210 12.so.0.10[.0] + 1.2.10rc1-2 13 10210 12.so.0.10[.0] + 1.2.10 13 10210 12.so.0.10[.0] + 1.4.0beta1-6 14 10400 14.so.0.0[.0] + 1.2.11beta1-4 13 10210 12.so.0.11[.0] + 1.4.0beta7-8 14 10400 14.so.0.0[.0] + 1.2.11 13 10211 12.so.0.11[.0] + 1.2.12 13 10212 12.so.0.12[.0] + 1.4.0beta9-14 14 10400 14.so.0.0[.0] + 1.2.13 13 10213 12.so.0.13[.0] + 1.4.0beta15-36 14 10400 14.so.0.0[.0] + 1.4.0beta37-87 14 10400 14.so.14.0[.0] + 1.4.0rc01 14 10400 14.so.14.0[.0] + 1.4.0beta88-109 14 10400 14.so.14.0[.0] + 1.4.0rc02-08 14 10400 14.so.14.0[.0] + 1.4.0 14 10400 14.so.14.0[.0] + 1.4.1beta01-03 14 10401 14.so.14.1[.0] + 1.4.1rc01 14 10401 14.so.14.1[.0] + 1.4.1beta04-12 14 10401 14.so.14.1[.0] + 1.4.1 14 10401 14.so.14.1[.0] + 1.4.2 14 10402 14.so.14.2[.0] + 1.4.3 14 10403 14.so.14.3[.0] + 1.4.4 14 10404 14.so.14.4[.0] + 1.5.0beta01-58 15 10500 15.so.15.0[.0] + 1.5.0rc01-07 15 10500 15.so.15.0[.0] + 1.5.0 15 10500 15.so.15.0[.0] + 1.5.1beta01-11 15 10501 15.so.15.1[.0] + 1.5.1rc01-02 15 10501 15.so.15.1[.0] + 1.5.1 15 10501 15.so.15.1[.0] + 1.5.2beta01-03 15 10502 15.so.15.2[.0] + 1.5.2rc01-03 15 10502 15.so.15.2[.0] + 1.5.2 15 10502 15.so.15.2[.0] + 1.5.3beta01-10 15 10503 15.so.15.3[.0] + 1.5.3rc01-02 15 10503 15.so.15.3[.0] + 1.5.3beta11 15 10503 15.so.15.3[.0] + 1.5.3 [omitted] + 1.5.4beta01-08 15 10504 15.so.15.4[.0] + 1.5.4rc01 15 10504 15.so.15.4[.0] + 1.5.4 15 10504 15.so.15.4[.0] + 1.5.5beta01-08 15 10505 15.so.15.5[.0] + 1.5.5rc01 15 10505 15.so.15.5[.0] + 1.5.5 15 10505 15.so.15.5[.0] + 1.5.6beta01-07 15 10506 15.so.15.6[.0] + 1.5.6rc01-03 15 10506 15.so.15.6[.0] + 1.5.6 15 10506 15.so.15.6[.0] + 1.5.7beta01-05 15 10507 15.so.15.7[.0] + 1.5.7rc01-03 15 10507 15.so.15.7[.0] + 1.5.7 15 10507 15.so.15.7[.0] + 1.6.0beta01-40 16 10600 16.so.16.0[.0] + 1.6.0rc01-08 16 10600 16.so.16.0[.0] + 1.6.0 16 10600 16.so.16.0[.0] + 1.6.1beta01-09 16 10601 16.so.16.1[.0] + 1.6.1rc01 16 10601 16.so.16.1[.0] + 1.6.1 16 10601 16.so.16.1[.0] + 1.6.2beta01 16 10602 16.so.16.2[.0] + 1.6.2rc01-06 16 10602 16.so.16.2[.0] + 1.6.2 16 10602 16.so.16.2[.0] + 1.6.3beta01-11 16 10603 16.so.16.3[.0] + 1.6.3rc01 16 10603 16.so.16.3[.0] + 1.6.3 16 10603 16.so.16.3[.0] + 1.6.4beta01-02 16 10604 16.so.16.4[.0] + 1.6.4rc01 16 10604 16.so.16.4[.0] + 1.6.4 16 10604 16.so.16.4[.0] + 1.6.5 16 10605 16.so.16.5[.0] + 1.6.6 16 10606 16.so.16.6[.0] + 1.6.7beta01-04 16 10607 16.so.16.7[.0] + 1.6.7rc01-02 16 10607 16.so.16.7[.0] + 1.6.7 16 10607 16.so.16.7[.0] + 1.6.8beta01-02 16 10608 16.so.16.8[.0] + 1.6.8rc01-02 16 10608 16.so.16.8[.0] + 1.6.8 16 10608 16.so.16.8[.0] + 1.6.9beta01-04 16 10609 16.so.16.9[.0] + 1.6.9rc01-02 16 10609 16.so.16.9[.0] + 1.6.9 16 10609 16.so.16.9[.0] + 1.6.10beta01-03 16 10610 16.so.16.10[.0] + 1.6.10rc01-03 16 10610 16.so.16.10[.0] + 1.6.10 16 10610 16.so.16.10[.0] + 1.6.11beta01-06 16 10611 16.so.16.11[.0] + 1.6.11rc01-02 16 10611 16.so.16.11[.0] + 1.6.11 16 10611 16.so.16.11[.0] + 1.6.12rc01 16 10612 16.so.16.12[.0] + 1.6.12 16 10612 16.so.16.12[.0] + +Henceforth the source version will match the shared-library minor +and patch numbers; the shared-library major version number will be +used for changes in backward compatibility, as it is intended. The +PNG_PNGLIB_VER macro, which is not used within libpng but is available +for applications, is an unsigned integer of the form xyyzz corresponding +to the source version x.y.z (leading zeros in y and z). Beta versions +were given the previous public release number plus a letter, until +version 1.0.6j; from then on they were given the upcoming public +release number plus "betaNN" or "rcN". + +.SH "SEE ALSO" +.BR "png"(5), " libpngpf"(3), " zlib"(3), " deflate"(5), " " and " zlib"(5) + +.LP +.IR libpng : +.IP +http://libpng.sourceforge.net (follow the [DOWNLOAD] link) +http://www.libpng.org/pub/png + +.LP +.IR zlib : +.IP +(generally) at the same location as +.I libpng +or at +.br +ftp://ftp.info-zip.org/pub/infozip/zlib + +.LP +.IR PNG specification: RFC 2083 +.IP +(generally) at the same location as +.I libpng +or at +.br +ftp://ds.internic.net/rfc/rfc2083.txt +.br +or (as a W3C Recommendation) at +.br +http://www.w3.org/TR/REC-png.html + +.LP +In the case of any inconsistency between the PNG specification +and this library, the specification takes precedence. + +.SH AUTHORS +This man page: Glenn Randers-Pehrson + + +The contributing authors would like to thank all those who helped +with testing, bug fixes, and patience. This wouldn't have been +possible without all of you. + +Thanks to Frank J. T. Wojcik for helping with the documentation. + +Libpng version 1.6.12 - June 12, 2014: +Initially created in 1995 by Guy Eric Schalnat, then of Group 42, Inc. +Currently maintained by Glenn Randers-Pehrson (glennrp at users.sourceforge.net). + +Supported by the PNG development group +.br +png-mng-implement at lists.sf.net +(subscription required; visit +png-mng-implement at lists.sourceforge.net (subscription required; visit +https://lists.sourceforge.net/lists/listinfo/png-mng-implement +to subscribe). + +.SH COPYRIGHT NOTICE, DISCLAIMER, and LICENSE: + +(This copy of the libpng notices is provided for your convenience. In case of +any discrepancy between this copy and the notices in the file png.h that is +included in the libpng distribution, the latter shall prevail.) + +If you modify libpng you may insert additional notices immediately following +this sentence. + +This code is released under the libpng license. + +libpng versions 1.2.6, August 15, 2004, through 1.6.12, June 12, 2014, are +Copyright (c) 2004,2006-2014 Glenn Randers-Pehrson, and are +distributed according to the same disclaimer and license as libpng-1.2.5 +with the following individual added to the list of Contributing Authors + + Cosmin Truta + +libpng versions 1.0.7, July 1, 2000, through 1.2.5 - October 3, 2002, are +Copyright (c) 2000-2002 Glenn Randers-Pehrson, and are +distributed according to the same disclaimer and license as libpng-1.0.6 +with the following individuals added to the list of Contributing Authors + + Simon-Pierre Cadieux + Eric S. Raymond + Gilles Vollant + +and with the following additions to the disclaimer: + + There is no warranty against interference with your + enjoyment of the library or against infringement. + There is no warranty that our efforts or the library + will fulfill any of your particular purposes or needs. + This library is provided with all faults, and the entire + risk of satisfactory quality, performance, accuracy, and + effort is with the user. + +libpng versions 0.97, January 1998, through 1.0.6, March 20, 2000, are +Copyright (c) 1998, 1999 Glenn Randers-Pehrson +Distributed according to the same disclaimer and license as libpng-0.96, +with the following individuals added to the list of Contributing Authors: + + Tom Lane + Glenn Randers-Pehrson + Willem van Schaik + +libpng versions 0.89, June 1996, through 0.96, May 1997, are +Copyright (c) 1996, 1997 Andreas Dilger +Distributed according to the same disclaimer and license as libpng-0.88, +with the following individuals added to the list of Contributing Authors: + + John Bowler + Kevin Bracey + Sam Bushell + Magnus Holmgren + Greg Roelofs + Tom Tanner + +libpng versions 0.5, May 1995, through 0.88, January 1996, are +Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc. + +For the purposes of this copyright and license, "Contributing Authors" +is defined as the following set of individuals: + + Andreas Dilger + Dave Martindale + Guy Eric Schalnat + Paul Schmidt + Tim Wegner + +The PNG Reference Library is supplied "AS IS". The Contributing Authors +and Group 42, Inc. disclaim all warranties, expressed or implied, +including, without limitation, the warranties of merchantability and of +fitness for any purpose. The Contributing Authors and Group 42, Inc. +assume no liability for direct, indirect, incidental, special, exemplary, +or consequential damages, which may result from the use of the PNG +Reference Library, even if advised of the possibility of such damage. + +Permission is hereby granted to use, copy, modify, and distribute this +source code, or portions hereof, for any purpose, without fee, subject +to the following restrictions: + +1. The origin of this source code must not be misrepresented. + +2. Altered versions must be plainly marked as such and + must not be misrepresented as being the original source. + +3. This Copyright notice may not be removed or altered from + any source or altered source distribution. + +The Contributing Authors and Group 42, Inc. specifically permit, without +fee, and encourage the use of this source code as a component to +supporting the PNG file format in commercial products. If you use this +source code in a product, acknowledgment is not required but would be +appreciated. + + +A "png_get_copyright" function is available, for convenient use in "about" +boxes and the like: + + printf("%s",png_get_copyright(NULL)); + +Also, the PNG logo (in PNG format, of course) is supplied in the +files "pngbar.png" and "pngbar.jpg (88x31) and "pngnow.png" (98x31). + +Libpng is OSI Certified Open Source Software. OSI Certified Open Source is a +certification mark of the Open Source Initiative. + +Glenn Randers-Pehrson +glennrp at users.sourceforge.net +June 12, 2014 + +.\" end of man page + diff --git a/png/libpng.pc.in b/png/libpng.pc.in new file mode 100644 index 0000000..3e7e2c5 --- /dev/null +++ b/png/libpng.pc.in @@ -0,0 +1,11 @@ +prefix=@prefix@ +exec_prefix=@exec_prefix@ +libdir=@libdir@ +includedir=@includedir@/libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@ + +Name: libpng +Description: Loads and saves PNG files +Version: @PNGLIB_VERSION@ +Libs: -L${libdir} -lpng@PNGLIB_MAJOR@@PNGLIB_MINOR@ +Libs.private: @LIBS@ +Cflags: -I${includedir} diff --git a/png/libpngpf.3 b/png/libpngpf.3 new file mode 100644 index 0000000..6ac6285 --- /dev/null +++ b/png/libpngpf.3 @@ -0,0 +1,18 @@ +.TH LIBPNGPF 3 "June 12, 2014" +.SH NAME +libpng \- Portable Network Graphics (PNG) Reference Library 1.6.12 +(private functions) +.SH SYNOPSIS +\fB#include \fI"pngpriv.h" + +\fBAs of libpng version \fP\fI1.5.1\fP\fB, this section is no longer \fP\fImaintained\fP\fB, now that the private function prototypes are hidden in pngpriv.h and not accessible to applications. Look in pngpriv.h for the prototypes and a short description of each \fIfunction. + +.SH DESCRIPTION +The functions previously listed here are used privately by libpng and are not +available for use by applications. They are not "exported" to applications +using shared libraries. + +.SH SEE ALSO +.BR "png"(5), " libpng"(3), " zlib"(3), " deflate"(5), " " and " zlib"(5) +.SH AUTHOR +Glenn Randers-Pehrson diff --git a/png/png.5 b/png/png.5 new file mode 100644 index 0000000..8f329fd --- /dev/null +++ b/png/png.5 @@ -0,0 +1,74 @@ +.TH PNG 5 "June 12, 2014" +.SH NAME +png \- Portable Network Graphics (PNG) format +.SH DESCRIPTION +PNG (Portable Network Graphics) is an extensible file format for the +lossless, portable, well-compressed storage of raster images. PNG provides +a patent-free replacement for GIF and can also replace many +common uses of TIFF. Indexed-color, grayscale, and truecolor images are +supported, plus an optional alpha channel. Sample depths range from +1 to 16 bits. +.br + +PNG is designed to work well in online viewing applications, such as the +World Wide Web, so it is fully streamable with a progressive display +option. PNG is robust, providing both full file integrity checking and +fast, simple detection of common transmission errors. Also, PNG can store +gamma and chromaticity data for improved color matching on heterogeneous +platforms. + +.SH "SEE ALSO" +.BR "libpng"(3), " libpngpf"(3), " zlib"(3), " deflate"(5), " " and " zlib"(5) +.LP +PNG specification (second edition), November 2003: +.IP +.br + 8) + png_error(png_ptr, "Too many bytes for PNG signature"); + + png_ptr->sig_bytes = (png_byte)(num_bytes < 0 ? 0 : num_bytes); +} + +/* Checks whether the supplied bytes match the PNG signature. We allow + * checking less than the full 8-byte signature so that those apps that + * already read the first few bytes of a file to determine the file type + * can simply check the remaining bytes for extra assurance. Returns + * an integer less than, equal to, or greater than zero if sig is found, + * respectively, to be less than, to match, or be greater than the correct + * PNG signature (this is the same behavior as strcmp, memcmp, etc). + */ +int PNGAPI +png_sig_cmp(png_const_bytep sig, png_size_t start, png_size_t num_to_check) +{ + png_byte png_signature[8] = {137, 80, 78, 71, 13, 10, 26, 10}; + + if (num_to_check > 8) + num_to_check = 8; + + else if (num_to_check < 1) + return (-1); + + if (start > 7) + return (-1); + + if (start + num_to_check > 8) + num_to_check = 8 - start; + + return ((int)(memcmp(&sig[start], &png_signature[start], num_to_check))); +} + +#endif /* PNG_READ_SUPPORTED */ + +#if defined(PNG_READ_SUPPORTED) || defined(PNG_WRITE_SUPPORTED) +/* Function to allocate memory for zlib */ +PNG_FUNCTION(voidpf /* PRIVATE */, +png_zalloc,(voidpf png_ptr, uInt items, uInt size),PNG_ALLOCATED) +{ + png_alloc_size_t num_bytes = size; + + if (png_ptr == NULL) + return NULL; + + if (items >= (~(png_alloc_size_t)0)/size) + { + png_warning (png_voidcast(png_structrp, png_ptr), + "Potential overflow in png_zalloc()"); + return NULL; + } + + num_bytes *= items; + return png_malloc_warn(png_voidcast(png_structrp, png_ptr), num_bytes); +} + +/* Function to free memory for zlib */ +void /* PRIVATE */ +png_zfree(voidpf png_ptr, voidpf ptr) +{ + png_free(png_voidcast(png_const_structrp,png_ptr), ptr); +} + +/* Reset the CRC variable to 32 bits of 1's. Care must be taken + * in case CRC is > 32 bits to leave the top bits 0. + */ +void /* PRIVATE */ +png_reset_crc(png_structrp png_ptr) +{ + /* The cast is safe because the crc is a 32 bit value. */ + png_ptr->crc = (png_uint_32)crc32(0, Z_NULL, 0); +} + +/* Calculate the CRC over a section of data. We can only pass as + * much data to this routine as the largest single buffer size. We + * also check that this data will actually be used before going to the + * trouble of calculating it. + */ +void /* PRIVATE */ +png_calculate_crc(png_structrp png_ptr, png_const_bytep ptr, png_size_t length) +{ + int need_crc = 1; + + if (PNG_CHUNK_ANCILLARY(png_ptr->chunk_name)) + { + if ((png_ptr->flags & PNG_FLAG_CRC_ANCILLARY_MASK) == + (PNG_FLAG_CRC_ANCILLARY_USE | PNG_FLAG_CRC_ANCILLARY_NOWARN)) + need_crc = 0; + } + + else /* critical */ + { + if (png_ptr->flags & PNG_FLAG_CRC_CRITICAL_IGNORE) + need_crc = 0; + } + + /* 'uLong' is defined in zlib.h as unsigned long; this means that on some + * systems it is a 64 bit value. crc32, however, returns 32 bits so the + * following cast is safe. 'uInt' may be no more than 16 bits, so it is + * necessary to perform a loop here. + */ + if (need_crc && length > 0) + { + uLong crc = png_ptr->crc; /* Should never issue a warning */ + + do + { + uInt safe_length = (uInt)length; + if (safe_length == 0) + safe_length = (uInt)-1; /* evil, but safe */ + + crc = crc32(crc, ptr, safe_length); + + /* The following should never issue compiler warnings; if they do the + * target system has characteristics that will probably violate other + * assumptions within the libpng code. + */ + ptr += safe_length; + length -= safe_length; + } + while (length > 0); + + /* And the following is always safe because the crc is only 32 bits. */ + png_ptr->crc = (png_uint_32)crc; + } +} + +/* Check a user supplied version number, called from both read and write + * functions that create a png_struct. + */ +int +png_user_version_check(png_structrp png_ptr, png_const_charp user_png_ver) +{ + if (user_png_ver != NULL) + { + int i = 0; + + do + { + if (user_png_ver[i] != png_libpng_ver[i]) + png_ptr->flags |= PNG_FLAG_LIBRARY_MISMATCH; + } while (png_libpng_ver[i++]); + } + + else + png_ptr->flags |= PNG_FLAG_LIBRARY_MISMATCH; + + if (png_ptr->flags & PNG_FLAG_LIBRARY_MISMATCH) + { + /* Libpng 0.90 and later are binary incompatible with libpng 0.89, so + * we must recompile any applications that use any older library version. + * For versions after libpng 1.0, we will be compatible, so we need + * only check the first and third digits (note that when we reach version + * 1.10 we will need to check the fourth symbol, namely user_png_ver[3]). + */ + if (user_png_ver == NULL || user_png_ver[0] != png_libpng_ver[0] || + (user_png_ver[0] == '1' && (user_png_ver[2] != png_libpng_ver[2] || + user_png_ver[3] != png_libpng_ver[3])) || + (user_png_ver[0] == '0' && user_png_ver[2] < '9')) + { +#ifdef PNG_WARNINGS_SUPPORTED + size_t pos = 0; + char m[128]; + + pos = png_safecat(m, (sizeof m), pos, + "Application built with libpng-"); + pos = png_safecat(m, (sizeof m), pos, user_png_ver); + pos = png_safecat(m, (sizeof m), pos, " but running with "); + pos = png_safecat(m, (sizeof m), pos, png_libpng_ver); + PNG_UNUSED(pos) + + png_warning(png_ptr, m); +#endif + +#ifdef PNG_ERROR_NUMBERS_SUPPORTED + png_ptr->flags = 0; +#endif + + return 0; + } + } + + /* Success return. */ + return 1; +} + +/* Generic function to create a png_struct for either read or write - this + * contains the common initialization. + */ +PNG_FUNCTION(png_structp /* PRIVATE */, +png_create_png_struct,(png_const_charp user_png_ver, png_voidp error_ptr, + png_error_ptr error_fn, png_error_ptr warn_fn, png_voidp mem_ptr, + png_malloc_ptr malloc_fn, png_free_ptr free_fn),PNG_ALLOCATED) +{ + png_struct create_struct; +# ifdef PNG_SETJMP_SUPPORTED + jmp_buf create_jmp_buf; +# endif + + /* This temporary stack-allocated structure is used to provide a place to + * build enough context to allow the user provided memory allocator (if any) + * to be called. + */ + memset(&create_struct, 0, (sizeof create_struct)); + + /* Added at libpng-1.2.6 */ +# ifdef PNG_USER_LIMITS_SUPPORTED + create_struct.user_width_max = PNG_USER_WIDTH_MAX; + create_struct.user_height_max = PNG_USER_HEIGHT_MAX; + +# ifdef PNG_USER_CHUNK_CACHE_MAX + /* Added at libpng-1.2.43 and 1.4.0 */ + create_struct.user_chunk_cache_max = PNG_USER_CHUNK_CACHE_MAX; +# endif + +# ifdef PNG_USER_CHUNK_MALLOC_MAX + /* Added at libpng-1.2.43 and 1.4.1, required only for read but exists + * in png_struct regardless. + */ + create_struct.user_chunk_malloc_max = PNG_USER_CHUNK_MALLOC_MAX; +# endif +# endif + + /* The following two API calls simply set fields in png_struct, so it is safe + * to do them now even though error handling is not yet set up. + */ +# ifdef PNG_USER_MEM_SUPPORTED + png_set_mem_fn(&create_struct, mem_ptr, malloc_fn, free_fn); +# else + PNG_UNUSED(mem_ptr) + PNG_UNUSED(malloc_fn) + PNG_UNUSED(free_fn) +# endif + + /* (*error_fn) can return control to the caller after the error_ptr is set, + * this will result in a memory leak unless the error_fn does something + * extremely sophisticated. The design lacks merit but is implicit in the + * API. + */ + png_set_error_fn(&create_struct, error_ptr, error_fn, warn_fn); + +# ifdef PNG_SETJMP_SUPPORTED + if (!setjmp(create_jmp_buf)) + { + /* Temporarily fake out the longjmp information until we have + * successfully completed this function. This only works if we have + * setjmp() support compiled in, but it is safe - this stuff should + * never happen. + */ + create_struct.jmp_buf_ptr = &create_jmp_buf; + create_struct.jmp_buf_size = 0; /*stack allocation*/ + create_struct.longjmp_fn = longjmp; +# else + { +# endif + /* Call the general version checker (shared with read and write code): + */ + if (png_user_version_check(&create_struct, user_png_ver)) + { + png_structrp png_ptr = png_voidcast(png_structrp, + png_malloc_warn(&create_struct, (sizeof *png_ptr))); + + if (png_ptr != NULL) + { + /* png_ptr->zstream holds a back-pointer to the png_struct, so + * this can only be done now: + */ + create_struct.zstream.zalloc = png_zalloc; + create_struct.zstream.zfree = png_zfree; + create_struct.zstream.opaque = png_ptr; + +# ifdef PNG_SETJMP_SUPPORTED + /* Eliminate the local error handling: */ + create_struct.jmp_buf_ptr = NULL; + create_struct.jmp_buf_size = 0; + create_struct.longjmp_fn = 0; +# endif + + *png_ptr = create_struct; + + /* This is the successful return point */ + return png_ptr; + } + } + } + + /* A longjmp because of a bug in the application storage allocator or a + * simple failure to allocate the png_struct. + */ + return NULL; +} + +/* Allocate the memory for an info_struct for the application. */ +PNG_FUNCTION(png_infop,PNGAPI +png_create_info_struct,(png_const_structrp png_ptr),PNG_ALLOCATED) +{ + png_inforp info_ptr; + + png_debug(1, "in png_create_info_struct"); + + if (png_ptr == NULL) + return NULL; + + /* Use the internal API that does not (or at least should not) error out, so + * that this call always returns ok. The application typically sets up the + * error handling *after* creating the info_struct because this is the way it + * has always been done in 'example.c'. + */ + info_ptr = png_voidcast(png_inforp, png_malloc_base(png_ptr, + (sizeof *info_ptr))); + + if (info_ptr != NULL) + memset(info_ptr, 0, (sizeof *info_ptr)); + + return info_ptr; +} + +/* This function frees the memory associated with a single info struct. + * Normally, one would use either png_destroy_read_struct() or + * png_destroy_write_struct() to free an info struct, but this may be + * useful for some applications. From libpng 1.6.0 this function is also used + * internally to implement the png_info release part of the 'struct' destroy + * APIs. This ensures that all possible approaches free the same data (all of + * it). + */ +void PNGAPI +png_destroy_info_struct(png_const_structrp png_ptr, png_infopp info_ptr_ptr) +{ + png_inforp info_ptr = NULL; + + png_debug(1, "in png_destroy_info_struct"); + + if (png_ptr == NULL) + return; + + if (info_ptr_ptr != NULL) + info_ptr = *info_ptr_ptr; + + if (info_ptr != NULL) + { + /* Do this first in case of an error below; if the app implements its own + * memory management this can lead to png_free calling png_error, which + * will abort this routine and return control to the app error handler. + * An infinite loop may result if it then tries to free the same info + * ptr. + */ + *info_ptr_ptr = NULL; + + png_free_data(png_ptr, info_ptr, PNG_FREE_ALL, -1); + memset(info_ptr, 0, (sizeof *info_ptr)); + png_free(png_ptr, info_ptr); + } +} + +/* Initialize the info structure. This is now an internal function (0.89) + * and applications using it are urged to use png_create_info_struct() + * instead. Use deprecated in 1.6.0, internal use removed (used internally it + * is just a memset). + * + * NOTE: it is almost inconceivable that this API is used because it bypasses + * the user-memory mechanism and the user error handling/warning mechanisms in + * those cases where it does anything other than a memset. + */ +PNG_FUNCTION(void,PNGAPI +png_info_init_3,(png_infopp ptr_ptr, png_size_t png_info_struct_size), + PNG_DEPRECATED) +{ + png_inforp info_ptr = *ptr_ptr; + + png_debug(1, "in png_info_init_3"); + + if (info_ptr == NULL) + return; + + if ((sizeof (png_info)) > png_info_struct_size) + { + *ptr_ptr = NULL; + /* The following line is why this API should not be used: */ + free(info_ptr); + info_ptr = png_voidcast(png_inforp, png_malloc_base(NULL, + (sizeof *info_ptr))); + *ptr_ptr = info_ptr; + } + + /* Set everything to 0 */ + memset(info_ptr, 0, (sizeof *info_ptr)); +} + +/* The following API is not called internally */ +void PNGAPI +png_data_freer(png_const_structrp png_ptr, png_inforp info_ptr, + int freer, png_uint_32 mask) +{ + png_debug(1, "in png_data_freer"); + + if (png_ptr == NULL || info_ptr == NULL) + return; + + if (freer == PNG_DESTROY_WILL_FREE_DATA) + info_ptr->free_me |= mask; + + else if (freer == PNG_USER_WILL_FREE_DATA) + info_ptr->free_me &= ~mask; + + else + png_error(png_ptr, "Unknown freer parameter in png_data_freer"); +} + +void PNGAPI +png_free_data(png_const_structrp png_ptr, png_inforp info_ptr, png_uint_32 mask, + int num) +{ + png_debug(1, "in png_free_data"); + + if (png_ptr == NULL || info_ptr == NULL) + return; + +#ifdef PNG_TEXT_SUPPORTED + /* Free text item num or (if num == -1) all text items */ + if ((mask & PNG_FREE_TEXT) & info_ptr->free_me) + { + if (num != -1) + { + if (info_ptr->text && info_ptr->text[num].key) + { + png_free(png_ptr, info_ptr->text[num].key); + info_ptr->text[num].key = NULL; + } + } + + else + { + int i; + for (i = 0; i < info_ptr->num_text; i++) + png_free_data(png_ptr, info_ptr, PNG_FREE_TEXT, i); + png_free(png_ptr, info_ptr->text); + info_ptr->text = NULL; + info_ptr->num_text=0; + } + } +#endif + +#ifdef PNG_tRNS_SUPPORTED + /* Free any tRNS entry */ + if ((mask & PNG_FREE_TRNS) & info_ptr->free_me) + { + png_free(png_ptr, info_ptr->trans_alpha); + info_ptr->trans_alpha = NULL; + info_ptr->valid &= ~PNG_INFO_tRNS; + } +#endif + +#ifdef PNG_sCAL_SUPPORTED + /* Free any sCAL entry */ + if ((mask & PNG_FREE_SCAL) & info_ptr->free_me) + { + png_free(png_ptr, info_ptr->scal_s_width); + png_free(png_ptr, info_ptr->scal_s_height); + info_ptr->scal_s_width = NULL; + info_ptr->scal_s_height = NULL; + info_ptr->valid &= ~PNG_INFO_sCAL; + } +#endif + +#ifdef PNG_pCAL_SUPPORTED + /* Free any pCAL entry */ + if ((mask & PNG_FREE_PCAL) & info_ptr->free_me) + { + png_free(png_ptr, info_ptr->pcal_purpose); + png_free(png_ptr, info_ptr->pcal_units); + info_ptr->pcal_purpose = NULL; + info_ptr->pcal_units = NULL; + if (info_ptr->pcal_params != NULL) + { + unsigned int i; + for (i = 0; i < info_ptr->pcal_nparams; i++) + { + png_free(png_ptr, info_ptr->pcal_params[i]); + info_ptr->pcal_params[i] = NULL; + } + png_free(png_ptr, info_ptr->pcal_params); + info_ptr->pcal_params = NULL; + } + info_ptr->valid &= ~PNG_INFO_pCAL; + } +#endif + +#ifdef PNG_iCCP_SUPPORTED + /* Free any profile entry */ + if ((mask & PNG_FREE_ICCP) & info_ptr->free_me) + { + png_free(png_ptr, info_ptr->iccp_name); + png_free(png_ptr, info_ptr->iccp_profile); + info_ptr->iccp_name = NULL; + info_ptr->iccp_profile = NULL; + info_ptr->valid &= ~PNG_INFO_iCCP; + } +#endif + +#ifdef PNG_sPLT_SUPPORTED + /* Free a given sPLT entry, or (if num == -1) all sPLT entries */ + if ((mask & PNG_FREE_SPLT) & info_ptr->free_me) + { + if (num != -1) + { + if (info_ptr->splt_palettes) + { + png_free(png_ptr, info_ptr->splt_palettes[num].name); + png_free(png_ptr, info_ptr->splt_palettes[num].entries); + info_ptr->splt_palettes[num].name = NULL; + info_ptr->splt_palettes[num].entries = NULL; + } + } + + else + { + if (info_ptr->splt_palettes_num) + { + int i; + for (i = 0; i < info_ptr->splt_palettes_num; i++) + png_free_data(png_ptr, info_ptr, PNG_FREE_SPLT, (int)i); + + png_free(png_ptr, info_ptr->splt_palettes); + info_ptr->splt_palettes = NULL; + info_ptr->splt_palettes_num = 0; + } + info_ptr->valid &= ~PNG_INFO_sPLT; + } + } +#endif + +#ifdef PNG_STORE_UNKNOWN_CHUNKS_SUPPORTED + if ((mask & PNG_FREE_UNKN) & info_ptr->free_me) + { + if (num != -1) + { + if (info_ptr->unknown_chunks) + { + png_free(png_ptr, info_ptr->unknown_chunks[num].data); + info_ptr->unknown_chunks[num].data = NULL; + } + } + + else + { + int i; + + if (info_ptr->unknown_chunks_num) + { + for (i = 0; i < info_ptr->unknown_chunks_num; i++) + png_free_data(png_ptr, info_ptr, PNG_FREE_UNKN, (int)i); + + png_free(png_ptr, info_ptr->unknown_chunks); + info_ptr->unknown_chunks = NULL; + info_ptr->unknown_chunks_num = 0; + } + } + } +#endif + +#ifdef PNG_hIST_SUPPORTED + /* Free any hIST entry */ + if ((mask & PNG_FREE_HIST) & info_ptr->free_me) + { + png_free(png_ptr, info_ptr->hist); + info_ptr->hist = NULL; + info_ptr->valid &= ~PNG_INFO_hIST; + } +#endif + + /* Free any PLTE entry that was internally allocated */ + if ((mask & PNG_FREE_PLTE) & info_ptr->free_me) + { + png_free(png_ptr, info_ptr->palette); + info_ptr->palette = NULL; + info_ptr->valid &= ~PNG_INFO_PLTE; + info_ptr->num_palette = 0; + } + +#ifdef PNG_INFO_IMAGE_SUPPORTED + /* Free any image bits attached to the info structure */ + if ((mask & PNG_FREE_ROWS) & info_ptr->free_me) + { + if (info_ptr->row_pointers) + { + png_uint_32 row; + for (row = 0; row < info_ptr->height; row++) + { + png_free(png_ptr, info_ptr->row_pointers[row]); + info_ptr->row_pointers[row] = NULL; + } + png_free(png_ptr, info_ptr->row_pointers); + info_ptr->row_pointers = NULL; + } + info_ptr->valid &= ~PNG_INFO_IDAT; + } +#endif + + if (num != -1) + mask &= ~PNG_FREE_MUL; + + info_ptr->free_me &= ~mask; +} +#endif /* defined(PNG_READ_SUPPORTED) || defined(PNG_WRITE_SUPPORTED) */ + +/* This function returns a pointer to the io_ptr associated with the user + * functions. The application should free any memory associated with this + * pointer before png_write_destroy() or png_read_destroy() are called. + */ +png_voidp PNGAPI +png_get_io_ptr(png_const_structrp png_ptr) +{ + if (png_ptr == NULL) + return (NULL); + + return (png_ptr->io_ptr); +} + +#if defined(PNG_READ_SUPPORTED) || defined(PNG_WRITE_SUPPORTED) +# ifdef PNG_STDIO_SUPPORTED +/* Initialize the default input/output functions for the PNG file. If you + * use your own read or write routines, you can call either png_set_read_fn() + * or png_set_write_fn() instead of png_init_io(). If you have defined + * PNG_NO_STDIO or otherwise disabled PNG_STDIO_SUPPORTED, you must use a + * function of your own because "FILE *" isn't necessarily available. + */ +void PNGAPI +png_init_io(png_structrp png_ptr, png_FILE_p fp) +{ + png_debug(1, "in png_init_io"); + + if (png_ptr == NULL) + return; + + png_ptr->io_ptr = (png_voidp)fp; +} +# endif + +#ifdef PNG_SAVE_INT_32_SUPPORTED +/* The png_save_int_32 function assumes integers are stored in two's + * complement format. If this isn't the case, then this routine needs to + * be modified to write data in two's complement format. Note that, + * the following works correctly even if png_int_32 has more than 32 bits + * (compare the more complex code required on read for sign extension.) + */ +void PNGAPI +png_save_int_32(png_bytep buf, png_int_32 i) +{ + buf[0] = (png_byte)((i >> 24) & 0xff); + buf[1] = (png_byte)((i >> 16) & 0xff); + buf[2] = (png_byte)((i >> 8) & 0xff); + buf[3] = (png_byte)(i & 0xff); +} +#endif + +# ifdef PNG_TIME_RFC1123_SUPPORTED +/* Convert the supplied time into an RFC 1123 string suitable for use in + * a "Creation Time" or other text-based time string. + */ +int PNGAPI +png_convert_to_rfc1123_buffer(char out[29], png_const_timep ptime) +{ + static PNG_CONST char short_months[12][4] = + {"Jan", "Feb", "Mar", "Apr", "May", "Jun", + "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"}; + + if (out == NULL) + return 0; + + if (ptime->year > 9999 /* RFC1123 limitation */ || + ptime->month == 0 || ptime->month > 12 || + ptime->day == 0 || ptime->day > 31 || + ptime->hour > 23 || ptime->minute > 59 || + ptime->second > 60) + return 0; + + { + size_t pos = 0; + char number_buf[5]; /* enough for a four-digit year */ + +# define APPEND_STRING(string) pos = png_safecat(out, 29, pos, (string)) +# define APPEND_NUMBER(format, value)\ + APPEND_STRING(PNG_FORMAT_NUMBER(number_buf, format, (value))) +# define APPEND(ch) if (pos < 28) out[pos++] = (ch) + + APPEND_NUMBER(PNG_NUMBER_FORMAT_u, (unsigned)ptime->day); + APPEND(' '); + APPEND_STRING(short_months[(ptime->month - 1)]); + APPEND(' '); + APPEND_NUMBER(PNG_NUMBER_FORMAT_u, ptime->year); + APPEND(' '); + APPEND_NUMBER(PNG_NUMBER_FORMAT_02u, (unsigned)ptime->hour); + APPEND(':'); + APPEND_NUMBER(PNG_NUMBER_FORMAT_02u, (unsigned)ptime->minute); + APPEND(':'); + APPEND_NUMBER(PNG_NUMBER_FORMAT_02u, (unsigned)ptime->second); + APPEND_STRING(" +0000"); /* This reliably terminates the buffer */ + +# undef APPEND +# undef APPEND_NUMBER +# undef APPEND_STRING + } + + return 1; +} + +# if PNG_LIBPNG_VER < 10700 +/* To do: remove the following from libpng-1.7 */ +/* Original API that uses a private buffer in png_struct. + * Deprecated because it causes png_struct to carry a spurious temporary + * buffer (png_struct::time_buffer), better to have the caller pass this in. + */ +png_const_charp PNGAPI +png_convert_to_rfc1123(png_structrp png_ptr, png_const_timep ptime) +{ + if (png_ptr != NULL) + { + /* The only failure above if png_ptr != NULL is from an invalid ptime */ + if (!png_convert_to_rfc1123_buffer(png_ptr->time_buffer, ptime)) + png_warning(png_ptr, "Ignoring invalid time value"); + + else + return png_ptr->time_buffer; + } + + return NULL; +} +# endif +# endif /* PNG_TIME_RFC1123_SUPPORTED */ + +#endif /* defined(PNG_READ_SUPPORTED) || defined(PNG_WRITE_SUPPORTED) */ + +png_const_charp PNGAPI +png_get_copyright(png_const_structrp png_ptr) +{ + PNG_UNUSED(png_ptr) /* Silence compiler warning about unused png_ptr */ +#ifdef PNG_STRING_COPYRIGHT + return PNG_STRING_COPYRIGHT +#else +# ifdef __STDC__ + return PNG_STRING_NEWLINE \ + "libpng version 1.6.12 - June 12, 2014" PNG_STRING_NEWLINE \ + "Copyright (c) 1998-2014 Glenn Randers-Pehrson" PNG_STRING_NEWLINE \ + "Copyright (c) 1996-1997 Andreas Dilger" PNG_STRING_NEWLINE \ + "Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc." \ + PNG_STRING_NEWLINE; +# else + return "libpng version 1.6.12 - June 12, 2014\ + Copyright (c) 1998-2014 Glenn Randers-Pehrson\ + Copyright (c) 1996-1997 Andreas Dilger\ + Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc."; +# endif +#endif +} + +/* The following return the library version as a short string in the + * format 1.0.0 through 99.99.99zz. To get the version of *.h files + * used with your application, print out PNG_LIBPNG_VER_STRING, which + * is defined in png.h. + * Note: now there is no difference between png_get_libpng_ver() and + * png_get_header_ver(). Due to the version_nn_nn_nn typedef guard, + * it is guaranteed that png.c uses the correct version of png.h. + */ +png_const_charp PNGAPI +png_get_libpng_ver(png_const_structrp png_ptr) +{ + /* Version of *.c files used when building libpng */ + return png_get_header_ver(png_ptr); +} + +png_const_charp PNGAPI +png_get_header_ver(png_const_structrp png_ptr) +{ + /* Version of *.h files used when building libpng */ + PNG_UNUSED(png_ptr) /* Silence compiler warning about unused png_ptr */ + return PNG_LIBPNG_VER_STRING; +} + +png_const_charp PNGAPI +png_get_header_version(png_const_structrp png_ptr) +{ + /* Returns longer string containing both version and date */ + PNG_UNUSED(png_ptr) /* Silence compiler warning about unused png_ptr */ +#ifdef __STDC__ + return PNG_HEADER_VERSION_STRING +# ifndef PNG_READ_SUPPORTED + " (NO READ SUPPORT)" +# endif + PNG_STRING_NEWLINE; +#else + return PNG_HEADER_VERSION_STRING; +#endif +} + +#ifdef PNG_BUILD_GRAYSCALE_PALETTE_SUPPORTED +/* NOTE: this routine is not used internally! */ +/* Build a grayscale palette. Palette is assumed to be 1 << bit_depth + * large of png_color. This lets grayscale images be treated as + * paletted. Most useful for gamma correction and simplification + * of code. This API is not used internally. + */ +void PNGAPI +png_build_grayscale_palette(int bit_depth, png_colorp palette) +{ + int num_palette; + int color_inc; + int i; + int v; + + png_debug(1, "in png_do_build_grayscale_palette"); + + if (palette == NULL) + return; + + switch (bit_depth) + { + case 1: + num_palette = 2; + color_inc = 0xff; + break; + + case 2: + num_palette = 4; + color_inc = 0x55; + break; + + case 4: + num_palette = 16; + color_inc = 0x11; + break; + + case 8: + num_palette = 256; + color_inc = 1; + break; + + default: + num_palette = 0; + color_inc = 0; + break; + } + + for (i = 0, v = 0; i < num_palette; i++, v += color_inc) + { + palette[i].red = (png_byte)v; + palette[i].green = (png_byte)v; + palette[i].blue = (png_byte)v; + } +} +#endif + +#ifdef PNG_SET_UNKNOWN_CHUNKS_SUPPORTED +int PNGAPI +png_handle_as_unknown(png_const_structrp png_ptr, png_const_bytep chunk_name) +{ + /* Check chunk_name and return "keep" value if it's on the list, else 0 */ + png_const_bytep p, p_end; + + if (png_ptr == NULL || chunk_name == NULL || png_ptr->num_chunk_list == 0) + return PNG_HANDLE_CHUNK_AS_DEFAULT; + + p_end = png_ptr->chunk_list; + p = p_end + png_ptr->num_chunk_list*5; /* beyond end */ + + /* The code is the fifth byte after each four byte string. Historically this + * code was always searched from the end of the list, this is no longer + * necessary because the 'set' routine handles duplicate entries correcty. + */ + do /* num_chunk_list > 0, so at least one */ + { + p -= 5; + + if (!memcmp(chunk_name, p, 4)) + return p[4]; + } + while (p > p_end); + + /* This means that known chunks should be processed and unknown chunks should + * be handled according to the value of png_ptr->unknown_default; this can be + * confusing because, as a result, there are two levels of defaulting for + * unknown chunks. + */ + return PNG_HANDLE_CHUNK_AS_DEFAULT; +} + +#if defined(PNG_READ_UNKNOWN_CHUNKS_SUPPORTED) ||\ + defined(PNG_HANDLE_AS_UNKNOWN_SUPPORTED) +int /* PRIVATE */ +png_chunk_unknown_handling(png_const_structrp png_ptr, png_uint_32 chunk_name) +{ + png_byte chunk_string[5]; + + PNG_CSTRING_FROM_CHUNK(chunk_string, chunk_name); + return png_handle_as_unknown(png_ptr, chunk_string); +} +#endif /* READ_UNKNOWN_CHUNKS || HANDLE_AS_UNKNOWN */ +#endif /* SET_UNKNOWN_CHUNKS */ + +#ifdef PNG_READ_SUPPORTED +/* This function, added to libpng-1.0.6g, is untested. */ +int PNGAPI +png_reset_zstream(png_structrp png_ptr) +{ + if (png_ptr == NULL) + return Z_STREAM_ERROR; + + /* WARNING: this resets the window bits to the maximum! */ + return (inflateReset(&png_ptr->zstream)); +} +#endif /* PNG_READ_SUPPORTED */ + +/* This function was added to libpng-1.0.7 */ +png_uint_32 PNGAPI +png_access_version_number(void) +{ + /* Version of *.c files used when building libpng */ + return((png_uint_32)PNG_LIBPNG_VER); +} + + + +#if defined(PNG_READ_SUPPORTED) || defined(PNG_WRITE_SUPPORTED) +/* Ensure that png_ptr->zstream.msg holds some appropriate error message string. + * If it doesn't 'ret' is used to set it to something appropriate, even in cases + * like Z_OK or Z_STREAM_END where the error code is apparently a success code. + */ +void /* PRIVATE */ +png_zstream_error(png_structrp png_ptr, int ret) +{ + /* Translate 'ret' into an appropriate error string, priority is given to the + * one in zstream if set. This always returns a string, even in cases like + * Z_OK or Z_STREAM_END where the error code is a success code. + */ + if (png_ptr->zstream.msg == NULL) switch (ret) + { + default: + case Z_OK: + png_ptr->zstream.msg = PNGZ_MSG_CAST("unexpected zlib return code"); + break; + + case Z_STREAM_END: + /* Normal exit */ + png_ptr->zstream.msg = PNGZ_MSG_CAST("unexpected end of LZ stream"); + break; + + case Z_NEED_DICT: + /* This means the deflate stream did not have a dictionary; this + * indicates a bogus PNG. + */ + png_ptr->zstream.msg = PNGZ_MSG_CAST("missing LZ dictionary"); + break; + + case Z_ERRNO: + /* gz APIs only: should not happen */ + png_ptr->zstream.msg = PNGZ_MSG_CAST("zlib IO error"); + break; + + case Z_STREAM_ERROR: + /* internal libpng error */ + png_ptr->zstream.msg = PNGZ_MSG_CAST("bad parameters to zlib"); + break; + + case Z_DATA_ERROR: + png_ptr->zstream.msg = PNGZ_MSG_CAST("damaged LZ stream"); + break; + + case Z_MEM_ERROR: + png_ptr->zstream.msg = PNGZ_MSG_CAST("insufficient memory"); + break; + + case Z_BUF_ERROR: + /* End of input or output; not a problem if the caller is doing + * incremental read or write. + */ + png_ptr->zstream.msg = PNGZ_MSG_CAST("truncated"); + break; + + case Z_VERSION_ERROR: + png_ptr->zstream.msg = PNGZ_MSG_CAST("unsupported zlib version"); + break; + + case PNG_UNEXPECTED_ZLIB_RETURN: + /* Compile errors here mean that zlib now uses the value co-opted in + * pngpriv.h for PNG_UNEXPECTED_ZLIB_RETURN; update the switch above + * and change pngpriv.h. Note that this message is "... return", + * whereas the default/Z_OK one is "... return code". + */ + png_ptr->zstream.msg = PNGZ_MSG_CAST("unexpected zlib return"); + break; + } +} + +/* png_convert_size: a PNGAPI but no longer in png.h, so deleted + * at libpng 1.5.5! + */ + +/* Added at libpng version 1.2.34 and 1.4.0 (moved from pngset.c) */ +#ifdef PNG_GAMMA_SUPPORTED /* always set if COLORSPACE */ +static int +png_colorspace_check_gamma(png_const_structrp png_ptr, + png_colorspacerp colorspace, png_fixed_point gAMA, int from) + /* This is called to check a new gamma value against an existing one. The + * routine returns false if the new gamma value should not be written. + * + * 'from' says where the new gamma value comes from: + * + * 0: the new gamma value is the libpng estimate for an ICC profile + * 1: the new gamma value comes from a gAMA chunk + * 2: the new gamma value comes from an sRGB chunk + */ +{ + png_fixed_point gtest; + + if ((colorspace->flags & PNG_COLORSPACE_HAVE_GAMMA) != 0 && + (!png_muldiv(>est, colorspace->gamma, PNG_FP_1, gAMA) || + png_gamma_significant(gtest))) + { + /* Either this is an sRGB image, in which case the calculated gamma + * approximation should match, or this is an image with a profile and the + * value libpng calculates for the gamma of the profile does not match the + * value recorded in the file. The former, sRGB, case is an error, the + * latter is just a warning. + */ + if ((colorspace->flags & PNG_COLORSPACE_FROM_sRGB) != 0 || from == 2) + { + png_chunk_report(png_ptr, "gamma value does not match sRGB", + PNG_CHUNK_ERROR); + /* Do not overwrite an sRGB value */ + return from == 2; + } + + else /* sRGB tag not involved */ + { + png_chunk_report(png_ptr, "gamma value does not match libpng estimate", + PNG_CHUNK_WARNING); + return from == 1; + } + } + + return 1; +} + +void /* PRIVATE */ +png_colorspace_set_gamma(png_const_structrp png_ptr, + png_colorspacerp colorspace, png_fixed_point gAMA) +{ + /* Changed in libpng-1.5.4 to limit the values to ensure overflow can't + * occur. Since the fixed point representation is assymetrical it is + * possible for 1/gamma to overflow the limit of 21474 and this means the + * gamma value must be at least 5/100000 and hence at most 20000.0. For + * safety the limits here are a little narrower. The values are 0.00016 to + * 6250.0, which are truly ridiculous gamma values (and will produce + * displays that are all black or all white.) + * + * In 1.6.0 this test replaces the ones in pngrutil.c, in the gAMA chunk + * handling code, which only required the value to be >0. + */ + png_const_charp errmsg; + + if (gAMA < 16 || gAMA > 625000000) + errmsg = "gamma value out of range"; + +# ifdef PNG_READ_gAMA_SUPPORTED + /* Allow the application to set the gamma value more than once */ + else if ((png_ptr->mode & PNG_IS_READ_STRUCT) != 0 && + (colorspace->flags & PNG_COLORSPACE_FROM_gAMA) != 0) + errmsg = "duplicate"; +# endif + + /* Do nothing if the colorspace is already invalid */ + else if (colorspace->flags & PNG_COLORSPACE_INVALID) + return; + + else + { + if (png_colorspace_check_gamma(png_ptr, colorspace, gAMA, 1/*from gAMA*/)) + { + /* Store this gamma value. */ + colorspace->gamma = gAMA; + colorspace->flags |= + (PNG_COLORSPACE_HAVE_GAMMA | PNG_COLORSPACE_FROM_gAMA); + } + + /* At present if the check_gamma test fails the gamma of the colorspace is + * not updated however the colorspace is not invalidated. This + * corresponds to the case where the existing gamma comes from an sRGB + * chunk or profile. An error message has already been output. + */ + return; + } + + /* Error exit - errmsg has been set. */ + colorspace->flags |= PNG_COLORSPACE_INVALID; + png_chunk_report(png_ptr, errmsg, PNG_CHUNK_WRITE_ERROR); +} + +void /* PRIVATE */ +png_colorspace_sync_info(png_const_structrp png_ptr, png_inforp info_ptr) +{ + if (info_ptr->colorspace.flags & PNG_COLORSPACE_INVALID) + { + /* Everything is invalid */ + info_ptr->valid &= ~(PNG_INFO_gAMA|PNG_INFO_cHRM|PNG_INFO_sRGB| + PNG_INFO_iCCP); + +# ifdef PNG_COLORSPACE_SUPPORTED + /* Clean up the iCCP profile now if it won't be used. */ + png_free_data(png_ptr, info_ptr, PNG_FREE_ICCP, -1/*not used*/); +# else + PNG_UNUSED(png_ptr) +# endif + } + + else + { +# ifdef PNG_COLORSPACE_SUPPORTED + /* Leave the INFO_iCCP flag set if the pngset.c code has already set + * it; this allows a PNG to contain a profile which matches sRGB and + * yet still have that profile retrievable by the application. + */ + if (info_ptr->colorspace.flags & PNG_COLORSPACE_MATCHES_sRGB) + info_ptr->valid |= PNG_INFO_sRGB; + + else + info_ptr->valid &= ~PNG_INFO_sRGB; + + if (info_ptr->colorspace.flags & PNG_COLORSPACE_HAVE_ENDPOINTS) + info_ptr->valid |= PNG_INFO_cHRM; + + else + info_ptr->valid &= ~PNG_INFO_cHRM; +# endif + + if (info_ptr->colorspace.flags & PNG_COLORSPACE_HAVE_GAMMA) + info_ptr->valid |= PNG_INFO_gAMA; + + else + info_ptr->valid &= ~PNG_INFO_gAMA; + } +} + +#ifdef PNG_READ_SUPPORTED +void /* PRIVATE */ +png_colorspace_sync(png_const_structrp png_ptr, png_inforp info_ptr) +{ + if (info_ptr == NULL) /* reduce code size; check here not in the caller */ + return; + + info_ptr->colorspace = png_ptr->colorspace; + png_colorspace_sync_info(png_ptr, info_ptr); +} +#endif +#endif + +#ifdef PNG_COLORSPACE_SUPPORTED +/* Added at libpng-1.5.5 to support read and write of true CIEXYZ values for + * cHRM, as opposed to using chromaticities. These internal APIs return + * non-zero on a parameter error. The X, Y and Z values are required to be + * positive and less than 1.0. + */ +static int +png_xy_from_XYZ(png_xy *xy, const png_XYZ *XYZ) +{ + png_int_32 d, dwhite, whiteX, whiteY; + + d = XYZ->red_X + XYZ->red_Y + XYZ->red_Z; + if (!png_muldiv(&xy->redx, XYZ->red_X, PNG_FP_1, d)) return 1; + if (!png_muldiv(&xy->redy, XYZ->red_Y, PNG_FP_1, d)) return 1; + dwhite = d; + whiteX = XYZ->red_X; + whiteY = XYZ->red_Y; + + d = XYZ->green_X + XYZ->green_Y + XYZ->green_Z; + if (!png_muldiv(&xy->greenx, XYZ->green_X, PNG_FP_1, d)) return 1; + if (!png_muldiv(&xy->greeny, XYZ->green_Y, PNG_FP_1, d)) return 1; + dwhite += d; + whiteX += XYZ->green_X; + whiteY += XYZ->green_Y; + + d = XYZ->blue_X + XYZ->blue_Y + XYZ->blue_Z; + if (!png_muldiv(&xy->bluex, XYZ->blue_X, PNG_FP_1, d)) return 1; + if (!png_muldiv(&xy->bluey, XYZ->blue_Y, PNG_FP_1, d)) return 1; + dwhite += d; + whiteX += XYZ->blue_X; + whiteY += XYZ->blue_Y; + + /* The reference white is simply the sum of the end-point (X,Y,Z) vectors, + * thus: + */ + if (!png_muldiv(&xy->whitex, whiteX, PNG_FP_1, dwhite)) return 1; + if (!png_muldiv(&xy->whitey, whiteY, PNG_FP_1, dwhite)) return 1; + + return 0; +} + +static int +png_XYZ_from_xy(png_XYZ *XYZ, const png_xy *xy) +{ + png_fixed_point red_inverse, green_inverse, blue_scale; + png_fixed_point left, right, denominator; + + /* Check xy and, implicitly, z. Note that wide gamut color spaces typically + * have end points with 0 tristimulus values (these are impossible end + * points, but they are used to cover the possible colors.) + */ + if (xy->redx < 0 || xy->redx > PNG_FP_1) return 1; + if (xy->redy < 0 || xy->redy > PNG_FP_1-xy->redx) return 1; + if (xy->greenx < 0 || xy->greenx > PNG_FP_1) return 1; + if (xy->greeny < 0 || xy->greeny > PNG_FP_1-xy->greenx) return 1; + if (xy->bluex < 0 || xy->bluex > PNG_FP_1) return 1; + if (xy->bluey < 0 || xy->bluey > PNG_FP_1-xy->bluex) return 1; + if (xy->whitex < 0 || xy->whitex > PNG_FP_1) return 1; + if (xy->whitey < 0 || xy->whitey > PNG_FP_1-xy->whitex) return 1; + + /* The reverse calculation is more difficult because the original tristimulus + * value had 9 independent values (red,green,blue)x(X,Y,Z) however only 8 + * derived values were recorded in the cHRM chunk; + * (red,green,blue,white)x(x,y). This loses one degree of freedom and + * therefore an arbitrary ninth value has to be introduced to undo the + * original transformations. + * + * Think of the original end-points as points in (X,Y,Z) space. The + * chromaticity values (c) have the property: + * + * C + * c = --------- + * X + Y + Z + * + * For each c (x,y,z) from the corresponding original C (X,Y,Z). Thus the + * three chromaticity values (x,y,z) for each end-point obey the + * relationship: + * + * x + y + z = 1 + * + * This describes the plane in (X,Y,Z) space that intersects each axis at the + * value 1.0; call this the chromaticity plane. Thus the chromaticity + * calculation has scaled each end-point so that it is on the x+y+z=1 plane + * and chromaticity is the intersection of the vector from the origin to the + * (X,Y,Z) value with the chromaticity plane. + * + * To fully invert the chromaticity calculation we would need the three + * end-point scale factors, (red-scale, green-scale, blue-scale), but these + * were not recorded. Instead we calculated the reference white (X,Y,Z) and + * recorded the chromaticity of this. The reference white (X,Y,Z) would have + * given all three of the scale factors since: + * + * color-C = color-c * color-scale + * white-C = red-C + green-C + blue-C + * = red-c*red-scale + green-c*green-scale + blue-c*blue-scale + * + * But cHRM records only white-x and white-y, so we have lost the white scale + * factor: + * + * white-C = white-c*white-scale + * + * To handle this the inverse transformation makes an arbitrary assumption + * about white-scale: + * + * Assume: white-Y = 1.0 + * Hence: white-scale = 1/white-y + * Or: red-Y + green-Y + blue-Y = 1.0 + * + * Notice the last statement of the assumption gives an equation in three of + * the nine values we want to calculate. 8 more equations come from the + * above routine as summarised at the top above (the chromaticity + * calculation): + * + * Given: color-x = color-X / (color-X + color-Y + color-Z) + * Hence: (color-x - 1)*color-X + color.x*color-Y + color.x*color-Z = 0 + * + * This is 9 simultaneous equations in the 9 variables "color-C" and can be + * solved by Cramer's rule. Cramer's rule requires calculating 10 9x9 matrix + * determinants, however this is not as bad as it seems because only 28 of + * the total of 90 terms in the various matrices are non-zero. Nevertheless + * Cramer's rule is notoriously numerically unstable because the determinant + * calculation involves the difference of large, but similar, numbers. It is + * difficult to be sure that the calculation is stable for real world values + * and it is certain that it becomes unstable where the end points are close + * together. + * + * So this code uses the perhaps slightly less optimal but more + * understandable and totally obvious approach of calculating color-scale. + * + * This algorithm depends on the precision in white-scale and that is + * (1/white-y), so we can immediately see that as white-y approaches 0 the + * accuracy inherent in the cHRM chunk drops off substantially. + * + * libpng arithmetic: a simple invertion of the above equations + * ------------------------------------------------------------ + * + * white_scale = 1/white-y + * white-X = white-x * white-scale + * white-Y = 1.0 + * white-Z = (1 - white-x - white-y) * white_scale + * + * white-C = red-C + green-C + blue-C + * = red-c*red-scale + green-c*green-scale + blue-c*blue-scale + * + * This gives us three equations in (red-scale,green-scale,blue-scale) where + * all the coefficients are now known: + * + * red-x*red-scale + green-x*green-scale + blue-x*blue-scale + * = white-x/white-y + * red-y*red-scale + green-y*green-scale + blue-y*blue-scale = 1 + * red-z*red-scale + green-z*green-scale + blue-z*blue-scale + * = (1 - white-x - white-y)/white-y + * + * In the last equation color-z is (1 - color-x - color-y) so we can add all + * three equations together to get an alternative third: + * + * red-scale + green-scale + blue-scale = 1/white-y = white-scale + * + * So now we have a Cramer's rule solution where the determinants are just + * 3x3 - far more tractible. Unfortunately 3x3 determinants still involve + * multiplication of three coefficients so we can't guarantee to avoid + * overflow in the libpng fixed point representation. Using Cramer's rule in + * floating point is probably a good choice here, but it's not an option for + * fixed point. Instead proceed to simplify the first two equations by + * eliminating what is likely to be the largest value, blue-scale: + * + * blue-scale = white-scale - red-scale - green-scale + * + * Hence: + * + * (red-x - blue-x)*red-scale + (green-x - blue-x)*green-scale = + * (white-x - blue-x)*white-scale + * + * (red-y - blue-y)*red-scale + (green-y - blue-y)*green-scale = + * 1 - blue-y*white-scale + * + * And now we can trivially solve for (red-scale,green-scale): + * + * green-scale = + * (white-x - blue-x)*white-scale - (red-x - blue-x)*red-scale + * ----------------------------------------------------------- + * green-x - blue-x + * + * red-scale = + * 1 - blue-y*white-scale - (green-y - blue-y) * green-scale + * --------------------------------------------------------- + * red-y - blue-y + * + * Hence: + * + * red-scale = + * ( (green-x - blue-x) * (white-y - blue-y) - + * (green-y - blue-y) * (white-x - blue-x) ) / white-y + * ------------------------------------------------------------------------- + * (green-x - blue-x)*(red-y - blue-y)-(green-y - blue-y)*(red-x - blue-x) + * + * green-scale = + * ( (red-y - blue-y) * (white-x - blue-x) - + * (red-x - blue-x) * (white-y - blue-y) ) / white-y + * ------------------------------------------------------------------------- + * (green-x - blue-x)*(red-y - blue-y)-(green-y - blue-y)*(red-x - blue-x) + * + * Accuracy: + * The input values have 5 decimal digits of accuracy. The values are all in + * the range 0 < value < 1, so simple products are in the same range but may + * need up to 10 decimal digits to preserve the original precision and avoid + * underflow. Because we are using a 32-bit signed representation we cannot + * match this; the best is a little over 9 decimal digits, less than 10. + * + * The approach used here is to preserve the maximum precision within the + * signed representation. Because the red-scale calculation above uses the + * difference between two products of values that must be in the range -1..+1 + * it is sufficient to divide the product by 7; ceil(100,000/32767*2). The + * factor is irrelevant in the calculation because it is applied to both + * numerator and denominator. + * + * Note that the values of the differences of the products of the + * chromaticities in the above equations tend to be small, for example for + * the sRGB chromaticities they are: + * + * red numerator: -0.04751 + * green numerator: -0.08788 + * denominator: -0.2241 (without white-y multiplication) + * + * The resultant Y coefficients from the chromaticities of some widely used + * color space definitions are (to 15 decimal places): + * + * sRGB + * 0.212639005871510 0.715168678767756 0.072192315360734 + * Kodak ProPhoto + * 0.288071128229293 0.711843217810102 0.000085653960605 + * Adobe RGB + * 0.297344975250536 0.627363566255466 0.075291458493998 + * Adobe Wide Gamut RGB + * 0.258728243040113 0.724682314948566 0.016589442011321 + */ + /* By the argument, above overflow should be impossible here. The return + * value of 2 indicates an internal error to the caller. + */ + if (!png_muldiv(&left, xy->greenx-xy->bluex, xy->redy - xy->bluey, 7)) + return 2; + if (!png_muldiv(&right, xy->greeny-xy->bluey, xy->redx - xy->bluex, 7)) + return 2; + denominator = left - right; + + /* Now find the red numerator. */ + if (!png_muldiv(&left, xy->greenx-xy->bluex, xy->whitey-xy->bluey, 7)) + return 2; + if (!png_muldiv(&right, xy->greeny-xy->bluey, xy->whitex-xy->bluex, 7)) + return 2; + + /* Overflow is possible here and it indicates an extreme set of PNG cHRM + * chunk values. This calculation actually returns the reciprocal of the + * scale value because this allows us to delay the multiplication of white-y + * into the denominator, which tends to produce a small number. + */ + if (!png_muldiv(&red_inverse, xy->whitey, denominator, left-right) || + red_inverse <= xy->whitey /* r+g+b scales = white scale */) + return 1; + + /* Similarly for green_inverse: */ + if (!png_muldiv(&left, xy->redy-xy->bluey, xy->whitex-xy->bluex, 7)) + return 2; + if (!png_muldiv(&right, xy->redx-xy->bluex, xy->whitey-xy->bluey, 7)) + return 2; + if (!png_muldiv(&green_inverse, xy->whitey, denominator, left-right) || + green_inverse <= xy->whitey) + return 1; + + /* And the blue scale, the checks above guarantee this can't overflow but it + * can still produce 0 for extreme cHRM values. + */ + blue_scale = png_reciprocal(xy->whitey) - png_reciprocal(red_inverse) - + png_reciprocal(green_inverse); + if (blue_scale <= 0) return 1; + + + /* And fill in the png_XYZ: */ + if (!png_muldiv(&XYZ->red_X, xy->redx, PNG_FP_1, red_inverse)) return 1; + if (!png_muldiv(&XYZ->red_Y, xy->redy, PNG_FP_1, red_inverse)) return 1; + if (!png_muldiv(&XYZ->red_Z, PNG_FP_1 - xy->redx - xy->redy, PNG_FP_1, + red_inverse)) + return 1; + + if (!png_muldiv(&XYZ->green_X, xy->greenx, PNG_FP_1, green_inverse)) + return 1; + if (!png_muldiv(&XYZ->green_Y, xy->greeny, PNG_FP_1, green_inverse)) + return 1; + if (!png_muldiv(&XYZ->green_Z, PNG_FP_1 - xy->greenx - xy->greeny, PNG_FP_1, + green_inverse)) + return 1; + + if (!png_muldiv(&XYZ->blue_X, xy->bluex, blue_scale, PNG_FP_1)) return 1; + if (!png_muldiv(&XYZ->blue_Y, xy->bluey, blue_scale, PNG_FP_1)) return 1; + if (!png_muldiv(&XYZ->blue_Z, PNG_FP_1 - xy->bluex - xy->bluey, blue_scale, + PNG_FP_1)) + return 1; + + return 0; /*success*/ +} + +static int +png_XYZ_normalize(png_XYZ *XYZ) +{ + png_int_32 Y; + + if (XYZ->red_Y < 0 || XYZ->green_Y < 0 || XYZ->blue_Y < 0 || + XYZ->red_X < 0 || XYZ->green_X < 0 || XYZ->blue_X < 0 || + XYZ->red_Z < 0 || XYZ->green_Z < 0 || XYZ->blue_Z < 0) + return 1; + + /* Normalize by scaling so the sum of the end-point Y values is PNG_FP_1. + * IMPLEMENTATION NOTE: ANSI requires signed overflow not to occur, therefore + * relying on addition of two positive values producing a negative one is not + * safe. + */ + Y = XYZ->red_Y; + if (0x7fffffff - Y < XYZ->green_X) return 1; + Y += XYZ->green_Y; + if (0x7fffffff - Y < XYZ->blue_X) return 1; + Y += XYZ->blue_Y; + + if (Y != PNG_FP_1) + { + if (!png_muldiv(&XYZ->red_X, XYZ->red_X, PNG_FP_1, Y)) return 1; + if (!png_muldiv(&XYZ->red_Y, XYZ->red_Y, PNG_FP_1, Y)) return 1; + if (!png_muldiv(&XYZ->red_Z, XYZ->red_Z, PNG_FP_1, Y)) return 1; + + if (!png_muldiv(&XYZ->green_X, XYZ->green_X, PNG_FP_1, Y)) return 1; + if (!png_muldiv(&XYZ->green_Y, XYZ->green_Y, PNG_FP_1, Y)) return 1; + if (!png_muldiv(&XYZ->green_Z, XYZ->green_Z, PNG_FP_1, Y)) return 1; + + if (!png_muldiv(&XYZ->blue_X, XYZ->blue_X, PNG_FP_1, Y)) return 1; + if (!png_muldiv(&XYZ->blue_Y, XYZ->blue_Y, PNG_FP_1, Y)) return 1; + if (!png_muldiv(&XYZ->blue_Z, XYZ->blue_Z, PNG_FP_1, Y)) return 1; + } + + return 0; +} + +static int +png_colorspace_endpoints_match(const png_xy *xy1, const png_xy *xy2, int delta) +{ + /* Allow an error of +/-0.01 (absolute value) on each chromaticity */ + return !(PNG_OUT_OF_RANGE(xy1->whitex, xy2->whitex,delta) || + PNG_OUT_OF_RANGE(xy1->whitey, xy2->whitey,delta) || + PNG_OUT_OF_RANGE(xy1->redx, xy2->redx, delta) || + PNG_OUT_OF_RANGE(xy1->redy, xy2->redy, delta) || + PNG_OUT_OF_RANGE(xy1->greenx, xy2->greenx,delta) || + PNG_OUT_OF_RANGE(xy1->greeny, xy2->greeny,delta) || + PNG_OUT_OF_RANGE(xy1->bluex, xy2->bluex, delta) || + PNG_OUT_OF_RANGE(xy1->bluey, xy2->bluey, delta)); +} + +/* Added in libpng-1.6.0, a different check for the validity of a set of cHRM + * chunk chromaticities. Earlier checks used to simply look for the overflow + * condition (where the determinant of the matrix to solve for XYZ ends up zero + * because the chromaticity values are not all distinct.) Despite this it is + * theoretically possible to produce chromaticities that are apparently valid + * but that rapidly degrade to invalid, potentially crashing, sets because of + * arithmetic inaccuracies when calculations are performed on them. The new + * check is to round-trip xy -> XYZ -> xy and then check that the result is + * within a small percentage of the original. + */ +static int +png_colorspace_check_xy(png_XYZ *XYZ, const png_xy *xy) +{ + int result; + png_xy xy_test; + + /* As a side-effect this routine also returns the XYZ endpoints. */ + result = png_XYZ_from_xy(XYZ, xy); + if (result != 0) return result; + + result = png_xy_from_XYZ(&xy_test, XYZ); + if (result != 0) return result; + + if (png_colorspace_endpoints_match(xy, &xy_test, + 5/*actually, the math is pretty accurate*/)) + return 0; + + /* Too much slip */ + return 1; +} + +/* This is the check going the other way. The XYZ is modified to normalize it + * (another side-effect) and the xy chromaticities are returned. + */ +static int +png_colorspace_check_XYZ(png_xy *xy, png_XYZ *XYZ) +{ + int result; + png_XYZ XYZtemp; + + result = png_XYZ_normalize(XYZ); + if (result != 0) return result; + + result = png_xy_from_XYZ(xy, XYZ); + if (result != 0) return result; + + XYZtemp = *XYZ; + return png_colorspace_check_xy(&XYZtemp, xy); +} + +/* Used to check for an endpoint match against sRGB */ +static const png_xy sRGB_xy = /* From ITU-R BT.709-3 */ +{ + /* color x y */ + /* red */ 64000, 33000, + /* green */ 30000, 60000, + /* blue */ 15000, 6000, + /* white */ 31270, 32900 +}; + +static int +png_colorspace_set_xy_and_XYZ(png_const_structrp png_ptr, + png_colorspacerp colorspace, const png_xy *xy, const png_XYZ *XYZ, + int preferred) +{ + if (colorspace->flags & PNG_COLORSPACE_INVALID) + return 0; + + /* The consistency check is performed on the chromaticities; this factors out + * variations because of the normalization (or not) of the end point Y + * values. + */ + if (preferred < 2 && (colorspace->flags & PNG_COLORSPACE_HAVE_ENDPOINTS)) + { + /* The end points must be reasonably close to any we already have. The + * following allows an error of up to +/-.001 + */ + if (!png_colorspace_endpoints_match(xy, &colorspace->end_points_xy, 100)) + { + colorspace->flags |= PNG_COLORSPACE_INVALID; + png_benign_error(png_ptr, "inconsistent chromaticities"); + return 0; /* failed */ + } + + /* Only overwrite with preferred values */ + if (preferred == 0) + return 1; /* ok, but no change */ + } + + colorspace->end_points_xy = *xy; + colorspace->end_points_XYZ = *XYZ; + colorspace->flags |= PNG_COLORSPACE_HAVE_ENDPOINTS; + + /* The end points are normally quoted to two decimal digits, so allow +/-0.01 + * on this test. + */ + if (png_colorspace_endpoints_match(xy, &sRGB_xy, 1000)) + colorspace->flags |= PNG_COLORSPACE_ENDPOINTS_MATCH_sRGB; + + else + colorspace->flags &= PNG_COLORSPACE_CANCEL( + PNG_COLORSPACE_ENDPOINTS_MATCH_sRGB); + + return 2; /* ok and changed */ +} + +int /* PRIVATE */ +png_colorspace_set_chromaticities(png_const_structrp png_ptr, + png_colorspacerp colorspace, const png_xy *xy, int preferred) +{ + /* We must check the end points to ensure they are reasonable - in the past + * color management systems have crashed as a result of getting bogus + * colorant values, while this isn't the fault of libpng it is the + * responsibility of libpng because PNG carries the bomb and libpng is in a + * position to protect against it. + */ + png_XYZ XYZ; + + switch (png_colorspace_check_xy(&XYZ, xy)) + { + case 0: /* success */ + return png_colorspace_set_xy_and_XYZ(png_ptr, colorspace, xy, &XYZ, + preferred); + + case 1: + /* We can't invert the chromaticities so we can't produce value XYZ + * values. Likely as not a color management system will fail too. + */ + colorspace->flags |= PNG_COLORSPACE_INVALID; + png_benign_error(png_ptr, "invalid chromaticities"); + break; + + default: + /* libpng is broken; this should be a warning but if it happens we + * want error reports so for the moment it is an error. + */ + colorspace->flags |= PNG_COLORSPACE_INVALID; + png_error(png_ptr, "internal error checking chromaticities"); + break; + } + + return 0; /* failed */ +} + +int /* PRIVATE */ +png_colorspace_set_endpoints(png_const_structrp png_ptr, + png_colorspacerp colorspace, const png_XYZ *XYZ_in, int preferred) +{ + png_XYZ XYZ = *XYZ_in; + png_xy xy; + + switch (png_colorspace_check_XYZ(&xy, &XYZ)) + { + case 0: + return png_colorspace_set_xy_and_XYZ(png_ptr, colorspace, &xy, &XYZ, + preferred); + + case 1: + /* End points are invalid. */ + colorspace->flags |= PNG_COLORSPACE_INVALID; + png_benign_error(png_ptr, "invalid end points"); + break; + + default: + colorspace->flags |= PNG_COLORSPACE_INVALID; + png_error(png_ptr, "internal error checking chromaticities"); + break; + } + + return 0; /* failed */ +} + +#if defined(PNG_sRGB_SUPPORTED) || defined(PNG_iCCP_SUPPORTED) +/* Error message generation */ +static char +png_icc_tag_char(png_uint_32 byte) +{ + byte &= 0xff; + if (byte >= 32 && byte <= 126) + return (char)byte; + else + return '?'; +} + +static void +png_icc_tag_name(char *name, png_uint_32 tag) +{ + name[0] = '\''; + name[1] = png_icc_tag_char(tag >> 24); + name[2] = png_icc_tag_char(tag >> 16); + name[3] = png_icc_tag_char(tag >> 8); + name[4] = png_icc_tag_char(tag ); + name[5] = '\''; +} + +static int +is_ICC_signature_char(png_alloc_size_t it) +{ + return it == 32 || (it >= 48 && it <= 57) || (it >= 65 && it <= 90) || + (it >= 97 && it <= 122); +} + +static int +is_ICC_signature(png_alloc_size_t it) +{ + return is_ICC_signature_char(it >> 24) /* checks all the top bits */ && + is_ICC_signature_char((it >> 16) & 0xff) && + is_ICC_signature_char((it >> 8) & 0xff) && + is_ICC_signature_char(it & 0xff); +} + +static int +png_icc_profile_error(png_const_structrp png_ptr, png_colorspacerp colorspace, + png_const_charp name, png_alloc_size_t value, png_const_charp reason) +{ + size_t pos; + char message[196]; /* see below for calculation */ + + if (colorspace != NULL) + colorspace->flags |= PNG_COLORSPACE_INVALID; + + pos = png_safecat(message, (sizeof message), 0, "profile '"); /* 9 chars */ + pos = png_safecat(message, pos+79, pos, name); /* Truncate to 79 chars */ + pos = png_safecat(message, (sizeof message), pos, "': "); /* +2 = 90 */ + if (is_ICC_signature(value)) + { + /* So 'value' is at most 4 bytes and the following cast is safe */ + png_icc_tag_name(message+pos, (png_uint_32)value); + pos += 6; /* total +8; less than the else clause */ + message[pos++] = ':'; + message[pos++] = ' '; + } +# ifdef PNG_WARNINGS_SUPPORTED + else + { + char number[PNG_NUMBER_BUFFER_SIZE]; /* +24 = 114*/ + + pos = png_safecat(message, (sizeof message), pos, + png_format_number(number, number+(sizeof number), + PNG_NUMBER_FORMAT_x, value)); + pos = png_safecat(message, (sizeof message), pos, "h: "); /*+2 = 116*/ + } +# endif + /* The 'reason' is an arbitrary message, allow +79 maximum 195 */ + pos = png_safecat(message, (sizeof message), pos, reason); + PNG_UNUSED(pos) + + /* This is recoverable, but make it unconditionally an app_error on write to + * avoid writing invalid ICC profiles into PNG files. (I.e. we handle them + * on read, with a warning, but on write unless the app turns off + * application errors the PNG won't be written.) + */ + png_chunk_report(png_ptr, message, + (colorspace != NULL) ? PNG_CHUNK_ERROR : PNG_CHUNK_WRITE_ERROR); + + return 0; +} +#endif /* sRGB || iCCP */ + +#ifdef PNG_sRGB_SUPPORTED +int /* PRIVATE */ +png_colorspace_set_sRGB(png_const_structrp png_ptr, png_colorspacerp colorspace, + int intent) +{ + /* sRGB sets known gamma, end points and (from the chunk) intent. */ + /* IMPORTANT: these are not necessarily the values found in an ICC profile + * because ICC profiles store values adapted to a D50 environment; it is + * expected that the ICC profile mediaWhitePointTag will be D50, see the + * checks and code elsewhere to understand this better. + * + * These XYZ values, which are accurate to 5dp, produce rgb to gray + * coefficients of (6968,23435,2366), which are reduced (because they add up + * to 32769 not 32768) to (6968,23434,2366). These are the values that + * libpng has traditionally used (and are the best values given the 15bit + * algorithm used by the rgb to gray code.) + */ + static const png_XYZ sRGB_XYZ = /* D65 XYZ (*not* the D50 adapted values!) */ + { + /* color X Y Z */ + /* red */ 41239, 21264, 1933, + /* green */ 35758, 71517, 11919, + /* blue */ 18048, 7219, 95053 + }; + + /* Do nothing if the colorspace is already invalidated. */ + if (colorspace->flags & PNG_COLORSPACE_INVALID) + return 0; + + /* Check the intent, then check for existing settings. It is valid for the + * PNG file to have cHRM or gAMA chunks along with sRGB, but the values must + * be consistent with the correct values. If, however, this function is + * called below because an iCCP chunk matches sRGB then it is quite + * conceivable that an older app recorded incorrect gAMA and cHRM because of + * an incorrect calculation based on the values in the profile - this does + * *not* invalidate the profile (though it still produces an error, which can + * be ignored.) + */ + if (intent < 0 || intent >= PNG_sRGB_INTENT_LAST) + return png_icc_profile_error(png_ptr, colorspace, "sRGB", + (unsigned)intent, "invalid sRGB rendering intent"); + + if ((colorspace->flags & PNG_COLORSPACE_HAVE_INTENT) != 0 && + colorspace->rendering_intent != intent) + return png_icc_profile_error(png_ptr, colorspace, "sRGB", + (unsigned)intent, "inconsistent rendering intents"); + + if ((colorspace->flags & PNG_COLORSPACE_FROM_sRGB) != 0) + { + png_benign_error(png_ptr, "duplicate sRGB information ignored"); + return 0; + } + + /* If the standard sRGB cHRM chunk does not match the one from the PNG file + * warn but overwrite the value with the correct one. + */ + if ((colorspace->flags & PNG_COLORSPACE_HAVE_ENDPOINTS) != 0 && + !png_colorspace_endpoints_match(&sRGB_xy, &colorspace->end_points_xy, + 100)) + png_chunk_report(png_ptr, "cHRM chunk does not match sRGB", + PNG_CHUNK_ERROR); + + /* This check is just done for the error reporting - the routine always + * returns true when the 'from' argument corresponds to sRGB (2). + */ + (void)png_colorspace_check_gamma(png_ptr, colorspace, PNG_GAMMA_sRGB_INVERSE, + 2/*from sRGB*/); + + /* intent: bugs in GCC force 'int' to be used as the parameter type. */ + colorspace->rendering_intent = (png_uint_16)intent; + colorspace->flags |= PNG_COLORSPACE_HAVE_INTENT; + + /* endpoints */ + colorspace->end_points_xy = sRGB_xy; + colorspace->end_points_XYZ = sRGB_XYZ; + colorspace->flags |= + (PNG_COLORSPACE_HAVE_ENDPOINTS|PNG_COLORSPACE_ENDPOINTS_MATCH_sRGB); + + /* gamma */ + colorspace->gamma = PNG_GAMMA_sRGB_INVERSE; + colorspace->flags |= PNG_COLORSPACE_HAVE_GAMMA; + + /* Finally record that we have an sRGB profile */ + colorspace->flags |= + (PNG_COLORSPACE_MATCHES_sRGB|PNG_COLORSPACE_FROM_sRGB); + + return 1; /* set */ +} +#endif /* sRGB */ + +#ifdef PNG_iCCP_SUPPORTED +/* Encoded value of D50 as an ICC XYZNumber. From the ICC 2010 spec the value + * is XYZ(0.9642,1.0,0.8249), which scales to: + * + * (63189.8112, 65536, 54060.6464) + */ +static const png_byte D50_nCIEXYZ[12] = + { 0x00, 0x00, 0xf6, 0xd6, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0xd3, 0x2d }; + +int /* PRIVATE */ +png_icc_check_length(png_const_structrp png_ptr, png_colorspacerp colorspace, + png_const_charp name, png_uint_32 profile_length) +{ + if (profile_length < 132) + return png_icc_profile_error(png_ptr, colorspace, name, profile_length, + "too short"); + + return 1; +} + +int /* PRIVATE */ +png_icc_check_header(png_const_structrp png_ptr, png_colorspacerp colorspace, + png_const_charp name, png_uint_32 profile_length, + png_const_bytep profile/* first 132 bytes only */, int color_type) +{ + png_uint_32 temp; + + /* Length check; this cannot be ignored in this code because profile_length + * is used later to check the tag table, so even if the profile seems over + * long profile_length from the caller must be correct. The caller can fix + * this up on read or write by just passing in the profile header length. + */ + temp = png_get_uint_32(profile); + if (temp != profile_length) + return png_icc_profile_error(png_ptr, colorspace, name, temp, + "length does not match profile"); + + temp = (png_uint_32) (*(profile+8)); + if (temp > 3 && (profile_length & 3)) + return png_icc_profile_error(png_ptr, colorspace, name, profile_length, + "invalid length"); + + temp = png_get_uint_32(profile+128); /* tag count: 12 bytes/tag */ + if (temp > 357913930 || /* (2^32-4-132)/12: maximum possible tag count */ + profile_length < 132+12*temp) /* truncated tag table */ + return png_icc_profile_error(png_ptr, colorspace, name, temp, + "tag count too large"); + + /* The 'intent' must be valid or we can't store it, ICC limits the intent to + * 16 bits. + */ + temp = png_get_uint_32(profile+64); + if (temp >= 0xffff) /* The ICC limit */ + return png_icc_profile_error(png_ptr, colorspace, name, temp, + "invalid rendering intent"); + + /* This is just a warning because the profile may be valid in future + * versions. + */ + if (temp >= PNG_sRGB_INTENT_LAST) + (void)png_icc_profile_error(png_ptr, NULL, name, temp, + "intent outside defined range"); + + /* At this point the tag table can't be checked because it hasn't necessarily + * been loaded; however, various header fields can be checked. These checks + * are for values permitted by the PNG spec in an ICC profile; the PNG spec + * restricts the profiles that can be passed in an iCCP chunk (they must be + * appropriate to processing PNG data!) + */ + + /* Data checks (could be skipped). These checks must be independent of the + * version number; however, the version number doesn't accomodate changes in + * the header fields (just the known tags and the interpretation of the + * data.) + */ + temp = png_get_uint_32(profile+36); /* signature 'ascp' */ + if (temp != 0x61637370) + return png_icc_profile_error(png_ptr, colorspace, name, temp, + "invalid signature"); + + /* Currently the PCS illuminant/adopted white point (the computational + * white point) are required to be D50, + * however the profile contains a record of the illuminant so perhaps ICC + * expects to be able to change this in the future (despite the rationale in + * the introduction for using a fixed PCS adopted white.) Consequently the + * following is just a warning. + */ + if (memcmp(profile+68, D50_nCIEXYZ, 12) != 0) + (void)png_icc_profile_error(png_ptr, NULL, name, 0/*no tag value*/, + "PCS illuminant is not D50"); + + /* The PNG spec requires this: + * "If the iCCP chunk is present, the image samples conform to the colour + * space represented by the embedded ICC profile as defined by the + * International Color Consortium [ICC]. The colour space of the ICC profile + * shall be an RGB colour space for colour images (PNG colour types 2, 3, and + * 6), or a greyscale colour space for greyscale images (PNG colour types 0 + * and 4)." + * + * This checking code ensures the embedded profile (on either read or write) + * conforms to the specification requirements. Notice that an ICC 'gray' + * color-space profile contains the information to transform the monochrome + * data to XYZ or L*a*b (according to which PCS the profile uses) and this + * should be used in preference to the standard libpng K channel replication + * into R, G and B channels. + * + * Previously it was suggested that an RGB profile on grayscale data could be + * handled. However it it is clear that using an RGB profile in this context + * must be an error - there is no specification of what it means. Thus it is + * almost certainly more correct to ignore the profile. + */ + temp = png_get_uint_32(profile+16); /* data colour space field */ + switch (temp) + { + case 0x52474220: /* 'RGB ' */ + if (!(color_type & PNG_COLOR_MASK_COLOR)) + return png_icc_profile_error(png_ptr, colorspace, name, temp, + "RGB color space not permitted on grayscale PNG"); + break; + + case 0x47524159: /* 'GRAY' */ + if (color_type & PNG_COLOR_MASK_COLOR) + return png_icc_profile_error(png_ptr, colorspace, name, temp, + "Gray color space not permitted on RGB PNG"); + break; + + default: + return png_icc_profile_error(png_ptr, colorspace, name, temp, + "invalid ICC profile color space"); + } + + /* It is up to the application to check that the profile class matches the + * application requirements; the spec provides no guidance, but it's pretty + * weird if the profile is not scanner ('scnr'), monitor ('mntr'), printer + * ('prtr') or 'spac' (for generic color spaces). Issue a warning in these + * cases. Issue an error for device link or abstract profiles - these don't + * contain the records necessary to transform the color-space to anything + * other than the target device (and not even that for an abstract profile). + * Profiles of these classes may not be embedded in images. + */ + temp = png_get_uint_32(profile+12); /* profile/device class */ + switch (temp) + { + case 0x73636E72: /* 'scnr' */ + case 0x6D6E7472: /* 'mntr' */ + case 0x70727472: /* 'prtr' */ + case 0x73706163: /* 'spac' */ + /* All supported */ + break; + + case 0x61627374: /* 'abst' */ + /* May not be embedded in an image */ + return png_icc_profile_error(png_ptr, colorspace, name, temp, + "invalid embedded Abstract ICC profile"); + + case 0x6C696E6B: /* 'link' */ + /* DeviceLink profiles cannot be interpreted in a non-device specific + * fashion, if an app uses the AToB0Tag in the profile the results are + * undefined unless the result is sent to the intended device, + * therefore a DeviceLink profile should not be found embedded in a + * PNG. + */ + return png_icc_profile_error(png_ptr, colorspace, name, temp, + "unexpected DeviceLink ICC profile class"); + + case 0x6E6D636C: /* 'nmcl' */ + /* A NamedColor profile is also device specific, however it doesn't + * contain an AToB0 tag that is open to misinterpretation. Almost + * certainly it will fail the tests below. + */ + (void)png_icc_profile_error(png_ptr, NULL, name, temp, + "unexpected NamedColor ICC profile class"); + break; + + default: + /* To allow for future enhancements to the profile accept unrecognized + * profile classes with a warning, these then hit the test below on the + * tag content to ensure they are backward compatible with one of the + * understood profiles. + */ + (void)png_icc_profile_error(png_ptr, NULL, name, temp, + "unrecognized ICC profile class"); + break; + } + + /* For any profile other than a device link one the PCS must be encoded + * either in XYZ or Lab. + */ + temp = png_get_uint_32(profile+20); + switch (temp) + { + case 0x58595A20: /* 'XYZ ' */ + case 0x4C616220: /* 'Lab ' */ + break; + + default: + return png_icc_profile_error(png_ptr, colorspace, name, temp, + "unexpected ICC PCS encoding"); + } + + return 1; +} + +int /* PRIVATE */ +png_icc_check_tag_table(png_const_structrp png_ptr, png_colorspacerp colorspace, + png_const_charp name, png_uint_32 profile_length, + png_const_bytep profile /* header plus whole tag table */) +{ + png_uint_32 tag_count = png_get_uint_32(profile+128); + png_uint_32 itag; + png_const_bytep tag = profile+132; /* The first tag */ + + /* First scan all the tags in the table and add bits to the icc_info value + * (temporarily in 'tags'). + */ + for (itag=0; itag < tag_count; ++itag, tag += 12) + { + png_uint_32 tag_id = png_get_uint_32(tag+0); + png_uint_32 tag_start = png_get_uint_32(tag+4); /* must be aligned */ + png_uint_32 tag_length = png_get_uint_32(tag+8);/* not padded */ + + /* The ICC specification does not exclude zero length tags, therefore the + * start might actually be anywhere if there is no data, but this would be + * a clear abuse of the intent of the standard so the start is checked for + * being in range. All defined tag types have an 8 byte header - a 4 byte + * type signature then 0. + */ + if ((tag_start & 3) != 0) + { + /* CNHP730S.icc shipped with Microsoft Windows 64 violates this, it is + * only a warning here because libpng does not care about the + * alignment. + */ + (void)png_icc_profile_error(png_ptr, NULL, name, tag_id, + "ICC profile tag start not a multiple of 4"); + } + + /* This is a hard error; potentially it can cause read outside the + * profile. + */ + if (tag_start > profile_length || tag_length > profile_length - tag_start) + return png_icc_profile_error(png_ptr, colorspace, name, tag_id, + "ICC profile tag outside profile"); + } + + return 1; /* success, maybe with warnings */ +} + +#if defined(PNG_sRGB_SUPPORTED) && PNG_sRGB_PROFILE_CHECKS >= 0 +/* Information about the known ICC sRGB profiles */ +static const struct +{ + png_uint_32 adler, crc, length; + png_uint_32 md5[4]; + png_byte have_md5; + png_byte is_broken; + png_uint_16 intent; + +# define PNG_MD5(a,b,c,d) { a, b, c, d }, (a!=0)||(b!=0)||(c!=0)||(d!=0) +# define PNG_ICC_CHECKSUM(adler, crc, md5, intent, broke, date, length, fname)\ + { adler, crc, length, md5, broke, intent }, + +} png_sRGB_checks[] = +{ + /* This data comes from contrib/tools/checksum-icc run on downloads of + * all four ICC sRGB profiles from www.color.org. + */ + /* adler32, crc32, MD5[4], intent, date, length, file-name */ + PNG_ICC_CHECKSUM(0x0a3fd9f6, 0x3b8772b9, + PNG_MD5(0x29f83dde, 0xaff255ae, 0x7842fae4, 0xca83390d), 0, 0, + "2009/03/27 21:36:31", 3048, "sRGB_IEC61966-2-1_black_scaled.icc") + + /* ICC sRGB v2 perceptual no black-compensation: */ + PNG_ICC_CHECKSUM(0x4909e5e1, 0x427ebb21, + PNG_MD5(0xc95bd637, 0xe95d8a3b, 0x0df38f99, 0xc1320389), 1, 0, + "2009/03/27 21:37:45", 3052, "sRGB_IEC61966-2-1_no_black_scaling.icc") + + PNG_ICC_CHECKSUM(0xfd2144a1, 0x306fd8ae, + PNG_MD5(0xfc663378, 0x37e2886b, 0xfd72e983, 0x8228f1b8), 0, 0, + "2009/08/10 17:28:01", 60988, "sRGB_v4_ICC_preference_displayclass.icc") + + /* ICC sRGB v4 perceptual */ + PNG_ICC_CHECKSUM(0x209c35d2, 0xbbef7812, + PNG_MD5(0x34562abf, 0x994ccd06, 0x6d2c5721, 0xd0d68c5d), 0, 0, + "2007/07/25 00:05:37", 60960, "sRGB_v4_ICC_preference.icc") + + /* The following profiles have no known MD5 checksum. If there is a match + * on the (empty) MD5 the other fields are used to attempt a match and + * a warning is produced. The first two of these profiles have a 'cprt' tag + * which suggests that they were also made by Hewlett Packard. + */ + PNG_ICC_CHECKSUM(0xa054d762, 0x5d5129ce, + PNG_MD5(0x00000000, 0x00000000, 0x00000000, 0x00000000), 1, 0, + "2004/07/21 18:57:42", 3024, "sRGB_IEC61966-2-1_noBPC.icc") + + /* This is a 'mntr' (display) profile with a mediaWhitePointTag that does not + * match the D50 PCS illuminant in the header (it is in fact the D65 values, + * so the white point is recorded as the un-adapted value.) The profiles + * below only differ in one byte - the intent - and are basically the same as + * the previous profile except for the mediaWhitePointTag error and a missing + * chromaticAdaptationTag. + */ + PNG_ICC_CHECKSUM(0xf784f3fb, 0x182ea552, + PNG_MD5(0x00000000, 0x00000000, 0x00000000, 0x00000000), 0, 1/*broken*/, + "1998/02/09 06:49:00", 3144, "HP-Microsoft sRGB v2 perceptual") + + PNG_ICC_CHECKSUM(0x0398f3fc, 0xf29e526d, + PNG_MD5(0x00000000, 0x00000000, 0x00000000, 0x00000000), 1, 1/*broken*/, + "1998/02/09 06:49:00", 3144, "HP-Microsoft sRGB v2 media-relative") +}; + +static int +png_compare_ICC_profile_with_sRGB(png_const_structrp png_ptr, + png_const_bytep profile, uLong adler) +{ + /* The quick check is to verify just the MD5 signature and trust the + * rest of the data. Because the profile has already been verified for + * correctness this is safe. png_colorspace_set_sRGB will check the 'intent' + * field too, so if the profile has been edited with an intent not defined + * by sRGB (but maybe defined by a later ICC specification) the read of + * the profile will fail at that point. + */ + + png_uint_32 length = 0; + png_uint_32 intent = 0x10000; /* invalid */ +#if PNG_sRGB_PROFILE_CHECKS > 1 + uLong crc = 0; /* the value for 0 length data */ +#endif + unsigned int i; + + /* First see if PNG_SKIP_sRGB_CHECK_PROFILE has been set to "on" */ + if (((png_ptr->options >> PNG_SKIP_sRGB_CHECK_PROFILE) & 3) == + PNG_OPTION_ON) + return 0; + + for (i=0; i < (sizeof png_sRGB_checks) / (sizeof png_sRGB_checks[0]); ++i) + { + if (png_get_uint_32(profile+84) == png_sRGB_checks[i].md5[0] && + png_get_uint_32(profile+88) == png_sRGB_checks[i].md5[1] && + png_get_uint_32(profile+92) == png_sRGB_checks[i].md5[2] && + png_get_uint_32(profile+96) == png_sRGB_checks[i].md5[3]) + { + /* This may be one of the old HP profiles without an MD5, in that + * case we can only use the length and Adler32 (note that these + * are not used by default if there is an MD5!) + */ +# if PNG_sRGB_PROFILE_CHECKS == 0 + if (png_sRGB_checks[i].have_md5) + return 1+png_sRGB_checks[i].is_broken; +# endif + + /* Profile is unsigned or more checks have been configured in. */ + if (length == 0) + { + length = png_get_uint_32(profile); + intent = png_get_uint_32(profile+64); + } + + /* Length *and* intent must match */ + if (length == png_sRGB_checks[i].length && + intent == png_sRGB_checks[i].intent) + { + /* Now calculate the adler32 if not done already. */ + if (adler == 0) + { + adler = adler32(0, NULL, 0); + adler = adler32(adler, profile, length); + } + + if (adler == png_sRGB_checks[i].adler) + { + /* These basic checks suggest that the data has not been + * modified, but if the check level is more than 1 perform + * our own crc32 checksum on the data. + */ +# if PNG_sRGB_PROFILE_CHECKS > 1 + if (crc == 0) + { + crc = crc32(0, NULL, 0); + crc = crc32(crc, profile, length); + } + + /* So this check must pass for the 'return' below to happen. + */ + if (crc == png_sRGB_checks[i].crc) +# endif + { + if (png_sRGB_checks[i].is_broken) + { + /* These profiles are known to have bad data that may cause + * problems if they are used, therefore attempt to + * discourage their use, skip the 'have_md5' warning below, + * which is made irrelevant by this error. + */ + png_chunk_report(png_ptr, "known incorrect sRGB profile", + PNG_CHUNK_ERROR); + } + + /* Warn that this being done; this isn't even an error since + * the profile is perfectly valid, but it would be nice if + * people used the up-to-date ones. + */ + else if (!png_sRGB_checks[i].have_md5) + { + png_chunk_report(png_ptr, + "out-of-date sRGB profile with no signature", + PNG_CHUNK_WARNING); + } + + return 1+png_sRGB_checks[i].is_broken; + } + } + +# if PNG_sRGB_PROFILE_CHECKS > 0 + /* The signature matched, but the profile had been changed in some + * way. This probably indicates a data error or uninformed hacking. + * Fall through to "no match". + */ + png_chunk_report(png_ptr, + "Not recognizing known sRGB profile that has been edited", + PNG_CHUNK_WARNING); + break; +# endif + } + } + } + + return 0; /* no match */ +} +#endif + +#ifdef PNG_sRGB_SUPPORTED +void /* PRIVATE */ +png_icc_set_sRGB(png_const_structrp png_ptr, + png_colorspacerp colorspace, png_const_bytep profile, uLong adler) +{ + /* Is this profile one of the known ICC sRGB profiles? If it is, just set + * the sRGB information. + */ +#if PNG_sRGB_PROFILE_CHECKS >= 0 + if (png_compare_ICC_profile_with_sRGB(png_ptr, profile, adler)) +#endif + (void)png_colorspace_set_sRGB(png_ptr, colorspace, + (int)/*already checked*/png_get_uint_32(profile+64)); +} +#endif /* PNG_READ_sRGB_SUPPORTED */ + +int /* PRIVATE */ +png_colorspace_set_ICC(png_const_structrp png_ptr, png_colorspacerp colorspace, + png_const_charp name, png_uint_32 profile_length, png_const_bytep profile, + int color_type) +{ + if (colorspace->flags & PNG_COLORSPACE_INVALID) + return 0; + + if (png_icc_check_length(png_ptr, colorspace, name, profile_length) && + png_icc_check_header(png_ptr, colorspace, name, profile_length, profile, + color_type) && + png_icc_check_tag_table(png_ptr, colorspace, name, profile_length, + profile)) + { +# ifdef PNG_sRGB_SUPPORTED + /* If no sRGB support, don't try storing sRGB information */ + png_icc_set_sRGB(png_ptr, colorspace, profile, 0); +# endif + return 1; + } + + /* Failure case */ + return 0; +} +#endif /* iCCP */ + +#ifdef PNG_READ_RGB_TO_GRAY_SUPPORTED +void /* PRIVATE */ +png_colorspace_set_rgb_coefficients(png_structrp png_ptr) +{ + /* Set the rgb_to_gray coefficients from the colorspace. */ + if (!png_ptr->rgb_to_gray_coefficients_set && + (png_ptr->colorspace.flags & PNG_COLORSPACE_HAVE_ENDPOINTS) != 0) + { + /* png_set_background has not been called, get the coefficients from the Y + * values of the colorspace colorants. + */ + png_fixed_point r = png_ptr->colorspace.end_points_XYZ.red_Y; + png_fixed_point g = png_ptr->colorspace.end_points_XYZ.green_Y; + png_fixed_point b = png_ptr->colorspace.end_points_XYZ.blue_Y; + png_fixed_point total = r+g+b; + + if (total > 0 && + r >= 0 && png_muldiv(&r, r, 32768, total) && r >= 0 && r <= 32768 && + g >= 0 && png_muldiv(&g, g, 32768, total) && g >= 0 && g <= 32768 && + b >= 0 && png_muldiv(&b, b, 32768, total) && b >= 0 && b <= 32768 && + r+g+b <= 32769) + { + /* We allow 0 coefficients here. r+g+b may be 32769 if two or + * all of the coefficients were rounded up. Handle this by + * reducing the *largest* coefficient by 1; this matches the + * approach used for the default coefficients in pngrtran.c + */ + int add = 0; + + if (r+g+b > 32768) + add = -1; + else if (r+g+b < 32768) + add = 1; + + if (add != 0) + { + if (g >= r && g >= b) + g += add; + else if (r >= g && r >= b) + r += add; + else + b += add; + } + + /* Check for an internal error. */ + if (r+g+b != 32768) + png_error(png_ptr, + "internal error handling cHRM coefficients"); + + else + { + png_ptr->rgb_to_gray_red_coeff = (png_uint_16)r; + png_ptr->rgb_to_gray_green_coeff = (png_uint_16)g; + } + } + + /* This is a png_error at present even though it could be ignored - + * it should never happen, but it is important that if it does, the + * bug is fixed. + */ + else + png_error(png_ptr, "internal error handling cHRM->XYZ"); + } +} +#endif + +#endif /* COLORSPACE */ + +void /* PRIVATE */ +png_check_IHDR(png_const_structrp png_ptr, + png_uint_32 width, png_uint_32 height, int bit_depth, + int color_type, int interlace_type, int compression_type, + int filter_type) +{ + int error = 0; + + /* Check for width and height valid values */ + if (width == 0) + { + png_warning(png_ptr, "Image width is zero in IHDR"); + error = 1; + } + else if (width > PNG_UINT_31_MAX) + { + png_warning(png_ptr, "Invalid image width in IHDR"); + error = 1; + } + else + { +# ifdef PNG_SET_USER_LIMITS_SUPPORTED + if (width > png_ptr->user_width_max) +# else + if (width > PNG_USER_WIDTH_MAX) +# endif + { + png_warning(png_ptr, "Image width exceeds user limit in IHDR"); + error = 1; + } + } + + if (height == 0) + { + png_warning(png_ptr, "Image height is zero in IHDR"); + error = 1; + } + else if (height > PNG_UINT_31_MAX) + { + png_warning(png_ptr, "Invalid image height in IHDR"); + error = 1; + } + else + { +# ifdef PNG_SET_USER_LIMITS_SUPPORTED + if (height > png_ptr->user_height_max) +# else + if (height > PNG_USER_HEIGHT_MAX) +# endif + { + png_warning(png_ptr, "Image height exceeds user limit in IHDR"); + error = 1; + } + } + + /* Check other values */ + if (bit_depth != 1 && bit_depth != 2 && bit_depth != 4 && + bit_depth != 8 && bit_depth != 16) + { + png_warning(png_ptr, "Invalid bit depth in IHDR"); + error = 1; + } + + if (color_type < 0 || color_type == 1 || + color_type == 5 || color_type > 6) + { + png_warning(png_ptr, "Invalid color type in IHDR"); + error = 1; + } + + if (((color_type == PNG_COLOR_TYPE_PALETTE) && bit_depth > 8) || + ((color_type == PNG_COLOR_TYPE_RGB || + color_type == PNG_COLOR_TYPE_GRAY_ALPHA || + color_type == PNG_COLOR_TYPE_RGB_ALPHA) && bit_depth < 8)) + { + png_warning(png_ptr, "Invalid color type/bit depth combination in IHDR"); + error = 1; + } + + if (interlace_type >= PNG_INTERLACE_LAST) + { + png_warning(png_ptr, "Unknown interlace method in IHDR"); + error = 1; + } + + if (compression_type != PNG_COMPRESSION_TYPE_BASE) + { + png_warning(png_ptr, "Unknown compression method in IHDR"); + error = 1; + } + +# ifdef PNG_MNG_FEATURES_SUPPORTED + /* Accept filter_method 64 (intrapixel differencing) only if + * 1. Libpng was compiled with PNG_MNG_FEATURES_SUPPORTED and + * 2. Libpng did not read a PNG signature (this filter_method is only + * used in PNG datastreams that are embedded in MNG datastreams) and + * 3. The application called png_permit_mng_features with a mask that + * included PNG_FLAG_MNG_FILTER_64 and + * 4. The filter_method is 64 and + * 5. The color_type is RGB or RGBA + */ + if ((png_ptr->mode & PNG_HAVE_PNG_SIGNATURE) && + png_ptr->mng_features_permitted) + png_warning(png_ptr, "MNG features are not allowed in a PNG datastream"); + + if (filter_type != PNG_FILTER_TYPE_BASE) + { + if (!((png_ptr->mng_features_permitted & PNG_FLAG_MNG_FILTER_64) && + (filter_type == PNG_INTRAPIXEL_DIFFERENCING) && + ((png_ptr->mode & PNG_HAVE_PNG_SIGNATURE) == 0) && + (color_type == PNG_COLOR_TYPE_RGB || + color_type == PNG_COLOR_TYPE_RGB_ALPHA))) + { + png_warning(png_ptr, "Unknown filter method in IHDR"); + error = 1; + } + + if (png_ptr->mode & PNG_HAVE_PNG_SIGNATURE) + { + png_warning(png_ptr, "Invalid filter method in IHDR"); + error = 1; + } + } + +# else + if (filter_type != PNG_FILTER_TYPE_BASE) + { + png_warning(png_ptr, "Unknown filter method in IHDR"); + error = 1; + } +# endif + + if (error == 1) + png_error(png_ptr, "Invalid IHDR data"); +} + +#if defined(PNG_sCAL_SUPPORTED) || defined(PNG_pCAL_SUPPORTED) +/* ASCII to fp functions */ +/* Check an ASCII formated floating point value, see the more detailed + * comments in pngpriv.h + */ +/* The following is used internally to preserve the sticky flags */ +#define png_fp_add(state, flags) ((state) |= (flags)) +#define png_fp_set(state, value) ((state) = (value) | ((state) & PNG_FP_STICKY)) + +int /* PRIVATE */ +png_check_fp_number(png_const_charp string, png_size_t size, int *statep, + png_size_tp whereami) +{ + int state = *statep; + png_size_t i = *whereami; + + while (i < size) + { + int type; + /* First find the type of the next character */ + switch (string[i]) + { + case 43: type = PNG_FP_SAW_SIGN; break; + case 45: type = PNG_FP_SAW_SIGN + PNG_FP_NEGATIVE; break; + case 46: type = PNG_FP_SAW_DOT; break; + case 48: type = PNG_FP_SAW_DIGIT; break; + case 49: case 50: case 51: case 52: + case 53: case 54: case 55: case 56: + case 57: type = PNG_FP_SAW_DIGIT + PNG_FP_NONZERO; break; + case 69: + case 101: type = PNG_FP_SAW_E; break; + default: goto PNG_FP_End; + } + + /* Now deal with this type according to the current + * state, the type is arranged to not overlap the + * bits of the PNG_FP_STATE. + */ + switch ((state & PNG_FP_STATE) + (type & PNG_FP_SAW_ANY)) + { + case PNG_FP_INTEGER + PNG_FP_SAW_SIGN: + if (state & PNG_FP_SAW_ANY) + goto PNG_FP_End; /* not a part of the number */ + + png_fp_add(state, type); + break; + + case PNG_FP_INTEGER + PNG_FP_SAW_DOT: + /* Ok as trailer, ok as lead of fraction. */ + if (state & PNG_FP_SAW_DOT) /* two dots */ + goto PNG_FP_End; + + else if (state & PNG_FP_SAW_DIGIT) /* trailing dot? */ + png_fp_add(state, type); + + else + png_fp_set(state, PNG_FP_FRACTION | type); + + break; + + case PNG_FP_INTEGER + PNG_FP_SAW_DIGIT: + if (state & PNG_FP_SAW_DOT) /* delayed fraction */ + png_fp_set(state, PNG_FP_FRACTION | PNG_FP_SAW_DOT); + + png_fp_add(state, type | PNG_FP_WAS_VALID); + + break; + + case PNG_FP_INTEGER + PNG_FP_SAW_E: + if ((state & PNG_FP_SAW_DIGIT) == 0) + goto PNG_FP_End; + + png_fp_set(state, PNG_FP_EXPONENT); + + break; + + /* case PNG_FP_FRACTION + PNG_FP_SAW_SIGN: + goto PNG_FP_End; ** no sign in fraction */ + + /* case PNG_FP_FRACTION + PNG_FP_SAW_DOT: + goto PNG_FP_End; ** Because SAW_DOT is always set */ + + case PNG_FP_FRACTION + PNG_FP_SAW_DIGIT: + png_fp_add(state, type | PNG_FP_WAS_VALID); + break; + + case PNG_FP_FRACTION + PNG_FP_SAW_E: + /* This is correct because the trailing '.' on an + * integer is handled above - so we can only get here + * with the sequence ".E" (with no preceding digits). + */ + if ((state & PNG_FP_SAW_DIGIT) == 0) + goto PNG_FP_End; + + png_fp_set(state, PNG_FP_EXPONENT); + + break; + + case PNG_FP_EXPONENT + PNG_FP_SAW_SIGN: + if (state & PNG_FP_SAW_ANY) + goto PNG_FP_End; /* not a part of the number */ + + png_fp_add(state, PNG_FP_SAW_SIGN); + + break; + + /* case PNG_FP_EXPONENT + PNG_FP_SAW_DOT: + goto PNG_FP_End; */ + + case PNG_FP_EXPONENT + PNG_FP_SAW_DIGIT: + png_fp_add(state, PNG_FP_SAW_DIGIT | PNG_FP_WAS_VALID); + + break; + + /* case PNG_FP_EXPONEXT + PNG_FP_SAW_E: + goto PNG_FP_End; */ + + default: goto PNG_FP_End; /* I.e. break 2 */ + } + + /* The character seems ok, continue. */ + ++i; + } + +PNG_FP_End: + /* Here at the end, update the state and return the correct + * return code. + */ + *statep = state; + *whereami = i; + + return (state & PNG_FP_SAW_DIGIT) != 0; +} + + +/* The same but for a complete string. */ +int +png_check_fp_string(png_const_charp string, png_size_t size) +{ + int state=0; + png_size_t char_index=0; + + if (png_check_fp_number(string, size, &state, &char_index) && + (char_index == size || string[char_index] == 0)) + return state /* must be non-zero - see above */; + + return 0; /* i.e. fail */ +} +#endif /* pCAL or sCAL */ + +#ifdef PNG_sCAL_SUPPORTED +# ifdef PNG_FLOATING_POINT_SUPPORTED +/* Utility used below - a simple accurate power of ten from an integral + * exponent. + */ +static double +png_pow10(int power) +{ + int recip = 0; + double d = 1; + + /* Handle negative exponent with a reciprocal at the end because + * 10 is exact whereas .1 is inexact in base 2 + */ + if (power < 0) + { + if (power < DBL_MIN_10_EXP) return 0; + recip = 1, power = -power; + } + + if (power > 0) + { + /* Decompose power bitwise. */ + double mult = 10; + do + { + if (power & 1) d *= mult; + mult *= mult; + power >>= 1; + } + while (power > 0); + + if (recip != 0) d = 1/d; + } + /* else power is 0 and d is 1 */ + + return d; +} + +/* Function to format a floating point value in ASCII with a given + * precision. + */ +void /* PRIVATE */ +png_ascii_from_fp(png_const_structrp png_ptr, png_charp ascii, png_size_t size, + double fp, unsigned int precision) +{ + /* We use standard functions from math.h, but not printf because + * that would require stdio. The caller must supply a buffer of + * sufficient size or we will png_error. The tests on size and + * the space in ascii[] consumed are indicated below. + */ + if (precision < 1) + precision = DBL_DIG; + + /* Enforce the limit of the implementation precision too. */ + if (precision > DBL_DIG+1) + precision = DBL_DIG+1; + + /* Basic sanity checks */ + if (size >= precision+5) /* See the requirements below. */ + { + if (fp < 0) + { + fp = -fp; + *ascii++ = 45; /* '-' PLUS 1 TOTAL 1 */ + --size; + } + + if (fp >= DBL_MIN && fp <= DBL_MAX) + { + int exp_b10; /* A base 10 exponent */ + double base; /* 10^exp_b10 */ + + /* First extract a base 10 exponent of the number, + * the calculation below rounds down when converting + * from base 2 to base 10 (multiply by log10(2) - + * 0.3010, but 77/256 is 0.3008, so exp_b10 needs to + * be increased. Note that the arithmetic shift + * performs a floor() unlike C arithmetic - using a + * C multiply would break the following for negative + * exponents. + */ + (void)frexp(fp, &exp_b10); /* exponent to base 2 */ + + exp_b10 = (exp_b10 * 77) >> 8; /* <= exponent to base 10 */ + + /* Avoid underflow here. */ + base = png_pow10(exp_b10); /* May underflow */ + + while (base < DBL_MIN || base < fp) + { + /* And this may overflow. */ + double test = png_pow10(exp_b10+1); + + if (test <= DBL_MAX) + ++exp_b10, base = test; + + else + break; + } + + /* Normalize fp and correct exp_b10, after this fp is in the + * range [.1,1) and exp_b10 is both the exponent and the digit + * *before* which the decimal point should be inserted + * (starting with 0 for the first digit). Note that this + * works even if 10^exp_b10 is out of range because of the + * test on DBL_MAX above. + */ + fp /= base; + while (fp >= 1) fp /= 10, ++exp_b10; + + /* Because of the code above fp may, at this point, be + * less than .1, this is ok because the code below can + * handle the leading zeros this generates, so no attempt + * is made to correct that here. + */ + + { + int czero, clead, cdigits; + char exponent[10]; + + /* Allow up to two leading zeros - this will not lengthen + * the number compared to using E-n. + */ + if (exp_b10 < 0 && exp_b10 > -3) /* PLUS 3 TOTAL 4 */ + { + czero = -exp_b10; /* PLUS 2 digits: TOTAL 3 */ + exp_b10 = 0; /* Dot added below before first output. */ + } + else + czero = 0; /* No zeros to add */ + + /* Generate the digit list, stripping trailing zeros and + * inserting a '.' before a digit if the exponent is 0. + */ + clead = czero; /* Count of leading zeros */ + cdigits = 0; /* Count of digits in list. */ + + do + { + double d; + + fp *= 10; + /* Use modf here, not floor and subtract, so that + * the separation is done in one step. At the end + * of the loop don't break the number into parts so + * that the final digit is rounded. + */ + if (cdigits+czero-clead+1 < (int)precision) + fp = modf(fp, &d); + + else + { + d = floor(fp + .5); + + if (d > 9) + { + /* Rounding up to 10, handle that here. */ + if (czero > 0) + { + --czero, d = 1; + if (cdigits == 0) --clead; + } + else + { + while (cdigits > 0 && d > 9) + { + int ch = *--ascii; + + if (exp_b10 != (-1)) + ++exp_b10; + + else if (ch == 46) + { + ch = *--ascii, ++size; + /* Advance exp_b10 to '1', so that the + * decimal point happens after the + * previous digit. + */ + exp_b10 = 1; + } + + --cdigits; + d = ch - 47; /* I.e. 1+(ch-48) */ + } + + /* Did we reach the beginning? If so adjust the + * exponent but take into account the leading + * decimal point. + */ + if (d > 9) /* cdigits == 0 */ + { + if (exp_b10 == (-1)) + { + /* Leading decimal point (plus zeros?), if + * we lose the decimal point here it must + * be reentered below. + */ + int ch = *--ascii; + + if (ch == 46) + ++size, exp_b10 = 1; + + /* Else lost a leading zero, so 'exp_b10' is + * still ok at (-1) + */ + } + else + ++exp_b10; + + /* In all cases we output a '1' */ + d = 1; + } + } + } + fp = 0; /* Guarantees termination below. */ + } + + if (d == 0) + { + ++czero; + if (cdigits == 0) ++clead; + } + else + { + /* Included embedded zeros in the digit count. */ + cdigits += czero - clead; + clead = 0; + + while (czero > 0) + { + /* exp_b10 == (-1) means we just output the decimal + * place - after the DP don't adjust 'exp_b10' any + * more! + */ + if (exp_b10 != (-1)) + { + if (exp_b10 == 0) *ascii++ = 46, --size; + /* PLUS 1: TOTAL 4 */ + --exp_b10; + } + *ascii++ = 48, --czero; + } + + if (exp_b10 != (-1)) + { + if (exp_b10 == 0) *ascii++ = 46, --size; /* counted + above */ + --exp_b10; + } + *ascii++ = (char)(48 + (int)d), ++cdigits; + } + } + while (cdigits+czero-clead < (int)precision && fp > DBL_MIN); + + /* The total output count (max) is now 4+precision */ + + /* Check for an exponent, if we don't need one we are + * done and just need to terminate the string. At + * this point exp_b10==(-1) is effectively if flag - it got + * to '-1' because of the decrement after outputing + * the decimal point above (the exponent required is + * *not* -1!) + */ + if (exp_b10 >= (-1) && exp_b10 <= 2) + { + /* The following only happens if we didn't output the + * leading zeros above for negative exponent, so this + * doest add to the digit requirement. Note that the + * two zeros here can only be output if the two leading + * zeros were *not* output, so this doesn't increase + * the output count. + */ + while (--exp_b10 >= 0) *ascii++ = 48; + + *ascii = 0; + + /* Total buffer requirement (including the '\0') is + * 5+precision - see check at the start. + */ + return; + } + + /* Here if an exponent is required, adjust size for + * the digits we output but did not count. The total + * digit output here so far is at most 1+precision - no + * decimal point and no leading or trailing zeros have + * been output. + */ + size -= cdigits; + + *ascii++ = 69, --size; /* 'E': PLUS 1 TOTAL 2+precision */ + + /* The following use of an unsigned temporary avoids ambiguities in + * the signed arithmetic on exp_b10 and permits GCC at least to do + * better optimization. + */ + { + unsigned int uexp_b10; + + if (exp_b10 < 0) + { + *ascii++ = 45, --size; /* '-': PLUS 1 TOTAL 3+precision */ + uexp_b10 = -exp_b10; + } + + else + uexp_b10 = exp_b10; + + cdigits = 0; + + while (uexp_b10 > 0) + { + exponent[cdigits++] = (char)(48 + uexp_b10 % 10); + uexp_b10 /= 10; + } + } + + /* Need another size check here for the exponent digits, so + * this need not be considered above. + */ + if ((int)size > cdigits) + { + while (cdigits > 0) *ascii++ = exponent[--cdigits]; + + *ascii = 0; + + return; + } + } + } + else if (!(fp >= DBL_MIN)) + { + *ascii++ = 48; /* '0' */ + *ascii = 0; + return; + } + else + { + *ascii++ = 105; /* 'i' */ + *ascii++ = 110; /* 'n' */ + *ascii++ = 102; /* 'f' */ + *ascii = 0; + return; + } + } + + /* Here on buffer too small. */ + png_error(png_ptr, "ASCII conversion buffer too small"); +} + +# endif /* FLOATING_POINT */ + +# ifdef PNG_FIXED_POINT_SUPPORTED +/* Function to format a fixed point value in ASCII. + */ +void /* PRIVATE */ +png_ascii_from_fixed(png_const_structrp png_ptr, png_charp ascii, + png_size_t size, png_fixed_point fp) +{ + /* Require space for 10 decimal digits, a decimal point, a minus sign and a + * trailing \0, 13 characters: + */ + if (size > 12) + { + png_uint_32 num; + + /* Avoid overflow here on the minimum integer. */ + if (fp < 0) + *ascii++ = 45, --size, num = -fp; + else + num = fp; + + if (num <= 0x80000000) /* else overflowed */ + { + unsigned int ndigits = 0, first = 16 /* flag value */; + char digits[10]; + + while (num) + { + /* Split the low digit off num: */ + unsigned int tmp = num/10; + num -= tmp*10; + digits[ndigits++] = (char)(48 + num); + /* Record the first non-zero digit, note that this is a number + * starting at 1, it's not actually the array index. + */ + if (first == 16 && num > 0) + first = ndigits; + num = tmp; + } + + if (ndigits > 0) + { + while (ndigits > 5) *ascii++ = digits[--ndigits]; + /* The remaining digits are fractional digits, ndigits is '5' or + * smaller at this point. It is certainly not zero. Check for a + * non-zero fractional digit: + */ + if (first <= 5) + { + unsigned int i; + *ascii++ = 46; /* decimal point */ + /* ndigits may be <5 for small numbers, output leading zeros + * then ndigits digits to first: + */ + i = 5; + while (ndigits < i) *ascii++ = 48, --i; + while (ndigits >= first) *ascii++ = digits[--ndigits]; + /* Don't output the trailing zeros! */ + } + } + else + *ascii++ = 48; + + /* And null terminate the string: */ + *ascii = 0; + return; + } + } + + /* Here on buffer too small. */ + png_error(png_ptr, "ASCII conversion buffer too small"); +} +# endif /* FIXED_POINT */ +#endif /* READ_SCAL */ + +#if defined(PNG_FLOATING_POINT_SUPPORTED) && \ + !defined(PNG_FIXED_POINT_MACRO_SUPPORTED) && \ + (defined(PNG_gAMA_SUPPORTED) || defined(PNG_cHRM_SUPPORTED) || \ + defined(PNG_sCAL_SUPPORTED) || defined(PNG_READ_BACKGROUND_SUPPORTED) || \ + defined(PNG_READ_RGB_TO_GRAY_SUPPORTED)) || \ + (defined(PNG_sCAL_SUPPORTED) && \ + defined(PNG_FLOATING_ARITHMETIC_SUPPORTED)) +png_fixed_point +png_fixed(png_const_structrp png_ptr, double fp, png_const_charp text) +{ + double r = floor(100000 * fp + .5); + + if (r > 2147483647. || r < -2147483648.) + png_fixed_error(png_ptr, text); + +# ifndef PNG_ERROR_TEXT_SUPPORTED + PNG_UNUSED(text) +# endif + + return (png_fixed_point)r; +} +#endif + +#if defined(PNG_GAMMA_SUPPORTED) || defined(PNG_COLORSPACE_SUPPORTED) ||\ + defined(PNG_INCH_CONVERSIONS_SUPPORTED) || defined(PNG_READ_pHYs_SUPPORTED) +/* muldiv functions */ +/* This API takes signed arguments and rounds the result to the nearest + * integer (or, for a fixed point number - the standard argument - to + * the nearest .00001). Overflow and divide by zero are signalled in + * the result, a boolean - true on success, false on overflow. + */ +int +png_muldiv(png_fixed_point_p res, png_fixed_point a, png_int_32 times, + png_int_32 divisor) +{ + /* Return a * times / divisor, rounded. */ + if (divisor != 0) + { + if (a == 0 || times == 0) + { + *res = 0; + return 1; + } + else + { +#ifdef PNG_FLOATING_ARITHMETIC_SUPPORTED + double r = a; + r *= times; + r /= divisor; + r = floor(r+.5); + + /* A png_fixed_point is a 32-bit integer. */ + if (r <= 2147483647. && r >= -2147483648.) + { + *res = (png_fixed_point)r; + return 1; + } +#else + int negative = 0; + png_uint_32 A, T, D; + png_uint_32 s16, s32, s00; + + if (a < 0) + negative = 1, A = -a; + else + A = a; + + if (times < 0) + negative = !negative, T = -times; + else + T = times; + + if (divisor < 0) + negative = !negative, D = -divisor; + else + D = divisor; + + /* Following can't overflow because the arguments only + * have 31 bits each, however the result may be 32 bits. + */ + s16 = (A >> 16) * (T & 0xffff) + + (A & 0xffff) * (T >> 16); + /* Can't overflow because the a*times bit is only 30 + * bits at most. + */ + s32 = (A >> 16) * (T >> 16) + (s16 >> 16); + s00 = (A & 0xffff) * (T & 0xffff); + + s16 = (s16 & 0xffff) << 16; + s00 += s16; + + if (s00 < s16) + ++s32; /* carry */ + + if (s32 < D) /* else overflow */ + { + /* s32.s00 is now the 64-bit product, do a standard + * division, we know that s32 < D, so the maximum + * required shift is 31. + */ + int bitshift = 32; + png_fixed_point result = 0; /* NOTE: signed */ + + while (--bitshift >= 0) + { + png_uint_32 d32, d00; + + if (bitshift > 0) + d32 = D >> (32-bitshift), d00 = D << bitshift; + + else + d32 = 0, d00 = D; + + if (s32 > d32) + { + if (s00 < d00) --s32; /* carry */ + s32 -= d32, s00 -= d00, result += 1<= d00) + s32 = 0, s00 -= d00, result += 1<= (D >> 1)) + ++result; + + if (negative != 0) + result = -result; + + /* Check for overflow. */ + if ((negative && result <= 0) || (!negative && result >= 0)) + { + *res = result; + return 1; + } + } +#endif + } + } + + return 0; +} +#endif /* READ_GAMMA || INCH_CONVERSIONS */ + +#if defined(PNG_READ_GAMMA_SUPPORTED) || defined(PNG_INCH_CONVERSIONS_SUPPORTED) +/* The following is for when the caller doesn't much care about the + * result. + */ +png_fixed_point +png_muldiv_warn(png_const_structrp png_ptr, png_fixed_point a, png_int_32 times, + png_int_32 divisor) +{ + png_fixed_point result; + + if (png_muldiv(&result, a, times, divisor)) + return result; + + png_warning(png_ptr, "fixed point overflow ignored"); + return 0; +} +#endif + +#ifdef PNG_GAMMA_SUPPORTED /* more fixed point functions for gamma */ +/* Calculate a reciprocal, return 0 on div-by-zero or overflow. */ +png_fixed_point +png_reciprocal(png_fixed_point a) +{ +#ifdef PNG_FLOATING_ARITHMETIC_SUPPORTED + double r = floor(1E10/a+.5); + + if (r <= 2147483647. && r >= -2147483648.) + return (png_fixed_point)r; +#else + png_fixed_point res; + + if (png_muldiv(&res, 100000, 100000, a)) + return res; +#endif + + return 0; /* error/overflow */ +} + +/* This is the shared test on whether a gamma value is 'significant' - whether + * it is worth doing gamma correction. + */ +int /* PRIVATE */ +png_gamma_significant(png_fixed_point gamma_val) +{ + return gamma_val < PNG_FP_1 - PNG_GAMMA_THRESHOLD_FIXED || + gamma_val > PNG_FP_1 + PNG_GAMMA_THRESHOLD_FIXED; +} +#endif + +#ifdef PNG_READ_GAMMA_SUPPORTED +# ifdef PNG_16BIT_SUPPORTED +/* A local convenience routine. */ +static png_fixed_point +png_product2(png_fixed_point a, png_fixed_point b) +{ + /* The required result is 1/a * 1/b; the following preserves accuracy. */ +# ifdef PNG_FLOATING_ARITHMETIC_SUPPORTED + double r = a * 1E-5; + r *= b; + r = floor(r+.5); + + if (r <= 2147483647. && r >= -2147483648.) + return (png_fixed_point)r; +# else + png_fixed_point res; + + if (png_muldiv(&res, a, b, 100000)) + return res; +# endif + + return 0; /* overflow */ +} +# endif /* 16BIT */ + +/* The inverse of the above. */ +png_fixed_point +png_reciprocal2(png_fixed_point a, png_fixed_point b) +{ + /* The required result is 1/a * 1/b; the following preserves accuracy. */ +#ifdef PNG_FLOATING_ARITHMETIC_SUPPORTED + double r = 1E15/a; + r /= b; + r = floor(r+.5); + + if (r <= 2147483647. && r >= -2147483648.) + return (png_fixed_point)r; +#else + /* This may overflow because the range of png_fixed_point isn't symmetric, + * but this API is only used for the product of file and screen gamma so it + * doesn't matter that the smallest number it can produce is 1/21474, not + * 1/100000 + */ + png_fixed_point res = png_product2(a, b); + + if (res != 0) + return png_reciprocal(res); +#endif + + return 0; /* overflow */ +} +#endif /* READ_GAMMA */ + +#ifdef PNG_READ_GAMMA_SUPPORTED /* gamma table code */ +#ifndef PNG_FLOATING_ARITHMETIC_SUPPORTED +/* Fixed point gamma. + * + * The code to calculate the tables used below can be found in the shell script + * contrib/tools/intgamma.sh + * + * To calculate gamma this code implements fast log() and exp() calls using only + * fixed point arithmetic. This code has sufficient precision for either 8-bit + * or 16-bit sample values. + * + * The tables used here were calculated using simple 'bc' programs, but C double + * precision floating point arithmetic would work fine. + * + * 8-bit log table + * This is a table of -log(value/255)/log(2) for 'value' in the range 128 to + * 255, so it's the base 2 logarithm of a normalized 8-bit floating point + * mantissa. The numbers are 32-bit fractions. + */ +static const png_uint_32 +png_8bit_l2[128] = +{ + 4270715492U, 4222494797U, 4174646467U, 4127164793U, 4080044201U, 4033279239U, + 3986864580U, 3940795015U, 3895065449U, 3849670902U, 3804606499U, 3759867474U, + 3715449162U, 3671346997U, 3627556511U, 3584073329U, 3540893168U, 3498011834U, + 3455425220U, 3413129301U, 3371120137U, 3329393864U, 3287946700U, 3246774933U, + 3205874930U, 3165243125U, 3124876025U, 3084770202U, 3044922296U, 3005329011U, + 2965987113U, 2926893432U, 2888044853U, 2849438323U, 2811070844U, 2772939474U, + 2735041326U, 2697373562U, 2659933400U, 2622718104U, 2585724991U, 2548951424U, + 2512394810U, 2476052606U, 2439922311U, 2404001468U, 2368287663U, 2332778523U, + 2297471715U, 2262364947U, 2227455964U, 2192742551U, 2158222529U, 2123893754U, + 2089754119U, 2055801552U, 2022034013U, 1988449497U, 1955046031U, 1921821672U, + 1888774511U, 1855902668U, 1823204291U, 1790677560U, 1758320682U, 1726131893U, + 1694109454U, 1662251657U, 1630556815U, 1599023271U, 1567649391U, 1536433567U, + 1505374214U, 1474469770U, 1443718700U, 1413119487U, 1382670639U, 1352370686U, + 1322218179U, 1292211689U, 1262349810U, 1232631153U, 1203054352U, 1173618059U, + 1144320946U, 1115161701U, 1086139034U, 1057251672U, 1028498358U, 999877854U, + 971388940U, 943030410U, 914801076U, 886699767U, 858725327U, 830876614U, + 803152505U, 775551890U, 748073672U, 720716771U, 693480120U, 666362667U, + 639363374U, 612481215U, 585715177U, 559064263U, 532527486U, 506103872U, + 479792461U, 453592303U, 427502463U, 401522014U, 375650043U, 349885648U, + 324227938U, 298676034U, 273229066U, 247886176U, 222646516U, 197509248U, + 172473545U, 147538590U, 122703574U, 97967701U, 73330182U, 48790236U, + 24347096U, 0U + +#if 0 + /* The following are the values for 16-bit tables - these work fine for the + * 8-bit conversions but produce very slightly larger errors in the 16-bit + * log (about 1.2 as opposed to 0.7 absolute error in the final value). To + * use these all the shifts below must be adjusted appropriately. + */ + 65166, 64430, 63700, 62976, 62257, 61543, 60835, 60132, 59434, 58741, 58054, + 57371, 56693, 56020, 55352, 54689, 54030, 53375, 52726, 52080, 51439, 50803, + 50170, 49542, 48918, 48298, 47682, 47070, 46462, 45858, 45257, 44661, 44068, + 43479, 42894, 42312, 41733, 41159, 40587, 40020, 39455, 38894, 38336, 37782, + 37230, 36682, 36137, 35595, 35057, 34521, 33988, 33459, 32932, 32408, 31887, + 31369, 30854, 30341, 29832, 29325, 28820, 28319, 27820, 27324, 26830, 26339, + 25850, 25364, 24880, 24399, 23920, 23444, 22970, 22499, 22029, 21562, 21098, + 20636, 20175, 19718, 19262, 18808, 18357, 17908, 17461, 17016, 16573, 16132, + 15694, 15257, 14822, 14390, 13959, 13530, 13103, 12678, 12255, 11834, 11415, + 10997, 10582, 10168, 9756, 9346, 8937, 8531, 8126, 7723, 7321, 6921, 6523, + 6127, 5732, 5339, 4947, 4557, 4169, 3782, 3397, 3014, 2632, 2251, 1872, 1495, + 1119, 744, 372 +#endif +}; + +static png_int_32 +png_log8bit(unsigned int x) +{ + unsigned int lg2 = 0; + /* Each time 'x' is multiplied by 2, 1 must be subtracted off the final log, + * because the log is actually negate that means adding 1. The final + * returned value thus has the range 0 (for 255 input) to 7.994 (for 1 + * input), return -1 for the overflow (log 0) case, - so the result is + * always at most 19 bits. + */ + if ((x &= 0xff) == 0) + return -1; + + if ((x & 0xf0) == 0) + lg2 = 4, x <<= 4; + + if ((x & 0xc0) == 0) + lg2 += 2, x <<= 2; + + if ((x & 0x80) == 0) + lg2 += 1, x <<= 1; + + /* result is at most 19 bits, so this cast is safe: */ + return (png_int_32)((lg2 << 16) + ((png_8bit_l2[x-128]+32768)>>16)); +} + +/* The above gives exact (to 16 binary places) log2 values for 8-bit images, + * for 16-bit images we use the most significant 8 bits of the 16-bit value to + * get an approximation then multiply the approximation by a correction factor + * determined by the remaining up to 8 bits. This requires an additional step + * in the 16-bit case. + * + * We want log2(value/65535), we have log2(v'/255), where: + * + * value = v' * 256 + v'' + * = v' * f + * + * So f is value/v', which is equal to (256+v''/v') since v' is in the range 128 + * to 255 and v'' is in the range 0 to 255 f will be in the range 256 to less + * than 258. The final factor also needs to correct for the fact that our 8-bit + * value is scaled by 255, whereas the 16-bit values must be scaled by 65535. + * + * This gives a final formula using a calculated value 'x' which is value/v' and + * scaling by 65536 to match the above table: + * + * log2(x/257) * 65536 + * + * Since these numbers are so close to '1' we can use simple linear + * interpolation between the two end values 256/257 (result -368.61) and 258/257 + * (result 367.179). The values used below are scaled by a further 64 to give + * 16-bit precision in the interpolation: + * + * Start (256): -23591 + * Zero (257): 0 + * End (258): 23499 + */ +static png_int_32 +png_log16bit(png_uint_32 x) +{ + unsigned int lg2 = 0; + + /* As above, but now the input has 16 bits. */ + if ((x &= 0xffff) == 0) + return -1; + + if ((x & 0xff00) == 0) + lg2 = 8, x <<= 8; + + if ((x & 0xf000) == 0) + lg2 += 4, x <<= 4; + + if ((x & 0xc000) == 0) + lg2 += 2, x <<= 2; + + if ((x & 0x8000) == 0) + lg2 += 1, x <<= 1; + + /* Calculate the base logarithm from the top 8 bits as a 28-bit fractional + * value. + */ + lg2 <<= 28; + lg2 += (png_8bit_l2[(x>>8)-128]+8) >> 4; + + /* Now we need to interpolate the factor, this requires a division by the top + * 8 bits. Do this with maximum precision. + */ + x = ((x << 16) + (x >> 9)) / (x >> 8); + + /* Since we divided by the top 8 bits of 'x' there will be a '1' at 1<<24, + * the value at 1<<16 (ignoring this) will be 0 or 1; this gives us exactly + * 16 bits to interpolate to get the low bits of the result. Round the + * answer. Note that the end point values are scaled by 64 to retain overall + * precision and that 'lg2' is current scaled by an extra 12 bits, so adjust + * the overall scaling by 6-12. Round at every step. + */ + x -= 1U << 24; + + if (x <= 65536U) /* <= '257' */ + lg2 += ((23591U * (65536U-x)) + (1U << (16+6-12-1))) >> (16+6-12); + + else + lg2 -= ((23499U * (x-65536U)) + (1U << (16+6-12-1))) >> (16+6-12); + + /* Safe, because the result can't have more than 20 bits: */ + return (png_int_32)((lg2 + 2048) >> 12); +} + +/* The 'exp()' case must invert the above, taking a 20-bit fixed point + * logarithmic value and returning a 16 or 8-bit number as appropriate. In + * each case only the low 16 bits are relevant - the fraction - since the + * integer bits (the top 4) simply determine a shift. + * + * The worst case is the 16-bit distinction between 65535 and 65534, this + * requires perhaps spurious accuracty in the decoding of the logarithm to + * distinguish log2(65535/65534.5) - 10^-5 or 17 bits. There is little chance + * of getting this accuracy in practice. + * + * To deal with this the following exp() function works out the exponent of the + * frational part of the logarithm by using an accurate 32-bit value from the + * top four fractional bits then multiplying in the remaining bits. + */ +static const png_uint_32 +png_32bit_exp[16] = +{ + /* NOTE: the first entry is deliberately set to the maximum 32-bit value. */ + 4294967295U, 4112874773U, 3938502376U, 3771522796U, 3611622603U, 3458501653U, + 3311872529U, 3171459999U, 3037000500U, 2908241642U, 2784941738U, 2666869345U, + 2553802834U, 2445529972U, 2341847524U, 2242560872U +}; + +/* Adjustment table; provided to explain the numbers in the code below. */ +#if 0 +for (i=11;i>=0;--i){ print i, " ", (1 - e(-(2^i)/65536*l(2))) * 2^(32-i), "\n"} + 11 44937.64284865548751208448 + 10 45180.98734845585101160448 + 9 45303.31936980687359311872 + 8 45364.65110595323018870784 + 7 45395.35850361789624614912 + 6 45410.72259715102037508096 + 5 45418.40724413220722311168 + 4 45422.25021786898173001728 + 3 45424.17186732298419044352 + 2 45425.13273269940811464704 + 1 45425.61317555035558641664 + 0 45425.85339951654943850496 +#endif + +static png_uint_32 +png_exp(png_fixed_point x) +{ + if (x > 0 && x <= 0xfffff) /* Else overflow or zero (underflow) */ + { + /* Obtain a 4-bit approximation */ + png_uint_32 e = png_32bit_exp[(x >> 12) & 0xf]; + + /* Incorporate the low 12 bits - these decrease the returned value by + * multiplying by a number less than 1 if the bit is set. The multiplier + * is determined by the above table and the shift. Notice that the values + * converge on 45426 and this is used to allow linear interpolation of the + * low bits. + */ + if (x & 0x800) + e -= (((e >> 16) * 44938U) + 16U) >> 5; + + if (x & 0x400) + e -= (((e >> 16) * 45181U) + 32U) >> 6; + + if (x & 0x200) + e -= (((e >> 16) * 45303U) + 64U) >> 7; + + if (x & 0x100) + e -= (((e >> 16) * 45365U) + 128U) >> 8; + + if (x & 0x080) + e -= (((e >> 16) * 45395U) + 256U) >> 9; + + if (x & 0x040) + e -= (((e >> 16) * 45410U) + 512U) >> 10; + + /* And handle the low 6 bits in a single block. */ + e -= (((e >> 16) * 355U * (x & 0x3fU)) + 256U) >> 9; + + /* Handle the upper bits of x. */ + e >>= x >> 16; + return e; + } + + /* Check for overflow */ + if (x <= 0) + return png_32bit_exp[0]; + + /* Else underflow */ + return 0; +} + +static png_byte +png_exp8bit(png_fixed_point lg2) +{ + /* Get a 32-bit value: */ + png_uint_32 x = png_exp(lg2); + + /* Convert the 32-bit value to 0..255 by multiplying by 256-1, note that the + * second, rounding, step can't overflow because of the first, subtraction, + * step. + */ + x -= x >> 8; + return (png_byte)((x + 0x7fffffU) >> 24); +} + +#ifdef PNG_16BIT_SUPPORTED +static png_uint_16 +png_exp16bit(png_fixed_point lg2) +{ + /* Get a 32-bit value: */ + png_uint_32 x = png_exp(lg2); + + /* Convert the 32-bit value to 0..65535 by multiplying by 65536-1: */ + x -= x >> 16; + return (png_uint_16)((x + 32767U) >> 16); +} +#endif /* 16BIT */ +#endif /* FLOATING_ARITHMETIC */ + +png_byte +png_gamma_8bit_correct(unsigned int value, png_fixed_point gamma_val) +{ + if (value > 0 && value < 255) + { +# ifdef PNG_FLOATING_ARITHMETIC_SUPPORTED + double r = floor(255*pow(value/255.,gamma_val*.00001)+.5); + return (png_byte)r; +# else + png_int_32 lg2 = png_log8bit(value); + png_fixed_point res; + + if (png_muldiv(&res, gamma_val, lg2, PNG_FP_1)) + return png_exp8bit(res); + + /* Overflow. */ + value = 0; +# endif + } + + return (png_byte)value; +} + +#ifdef PNG_16BIT_SUPPORTED +png_uint_16 +png_gamma_16bit_correct(unsigned int value, png_fixed_point gamma_val) +{ + if (value > 0 && value < 65535) + { +# ifdef PNG_FLOATING_ARITHMETIC_SUPPORTED + double r = floor(65535*pow(value/65535.,gamma_val*.00001)+.5); + return (png_uint_16)r; +# else + png_int_32 lg2 = png_log16bit(value); + png_fixed_point res; + + if (png_muldiv(&res, gamma_val, lg2, PNG_FP_1)) + return png_exp16bit(res); + + /* Overflow. */ + value = 0; +# endif + } + + return (png_uint_16)value; +} +#endif /* 16BIT */ + +/* This does the right thing based on the bit_depth field of the + * png_struct, interpreting values as 8-bit or 16-bit. While the result + * is nominally a 16-bit value if bit depth is 8 then the result is + * 8-bit (as are the arguments.) + */ +png_uint_16 /* PRIVATE */ +png_gamma_correct(png_structrp png_ptr, unsigned int value, + png_fixed_point gamma_val) +{ + if (png_ptr->bit_depth == 8) + return png_gamma_8bit_correct(value, gamma_val); + +#ifdef PNG_16BIT_SUPPORTED + else + return png_gamma_16bit_correct(value, gamma_val); +#else + /* should not reach this */ + return 0; +#endif /* 16BIT */ +} + +#ifdef PNG_16BIT_SUPPORTED +/* Internal function to build a single 16-bit table - the table consists of + * 'num' 256 entry subtables, where 'num' is determined by 'shift' - the amount + * to shift the input values right (or 16-number_of_signifiant_bits). + * + * The caller is responsible for ensuring that the table gets cleaned up on + * png_error (i.e. if one of the mallocs below fails) - i.e. the *table argument + * should be somewhere that will be cleaned. + */ +static void +png_build_16bit_table(png_structrp png_ptr, png_uint_16pp *ptable, + PNG_CONST unsigned int shift, PNG_CONST png_fixed_point gamma_val) +{ + /* Various values derived from 'shift': */ + PNG_CONST unsigned int num = 1U << (8U - shift); + PNG_CONST unsigned int max = (1U << (16U - shift))-1U; + PNG_CONST unsigned int max_by_2 = 1U << (15U-shift); + unsigned int i; + + png_uint_16pp table = *ptable = + (png_uint_16pp)png_calloc(png_ptr, num * (sizeof (png_uint_16p))); + + for (i = 0; i < num; i++) + { + png_uint_16p sub_table = table[i] = + (png_uint_16p)png_malloc(png_ptr, 256 * (sizeof (png_uint_16))); + + /* The 'threshold' test is repeated here because it can arise for one of + * the 16-bit tables even if the others don't hit it. + */ + if (png_gamma_significant(gamma_val)) + { + /* The old code would overflow at the end and this would cause the + * 'pow' function to return a result >1, resulting in an + * arithmetic error. This code follows the spec exactly; ig is + * the recovered input sample, it always has 8-16 bits. + * + * We want input * 65535/max, rounded, the arithmetic fits in 32 + * bits (unsigned) so long as max <= 32767. + */ + unsigned int j; + for (j = 0; j < 256; j++) + { + png_uint_32 ig = (j << (8-shift)) + i; +# ifdef PNG_FLOATING_ARITHMETIC_SUPPORTED + /* Inline the 'max' scaling operation: */ + double d = floor(65535*pow(ig/(double)max, gamma_val*.00001)+.5); + sub_table[j] = (png_uint_16)d; +# else + if (shift != 0) + ig = (ig * 65535U + max_by_2)/max; + + sub_table[j] = png_gamma_16bit_correct(ig, gamma_val); +# endif + } + } + else + { + /* We must still build a table, but do it the fast way. */ + unsigned int j; + + for (j = 0; j < 256; j++) + { + png_uint_32 ig = (j << (8-shift)) + i; + + if (shift != 0) + ig = (ig * 65535U + max_by_2)/max; + + sub_table[j] = (png_uint_16)ig; + } + } + } +} + +/* NOTE: this function expects the *inverse* of the overall gamma transformation + * required. + */ +static void +png_build_16to8_table(png_structrp png_ptr, png_uint_16pp *ptable, + PNG_CONST unsigned int shift, PNG_CONST png_fixed_point gamma_val) +{ + PNG_CONST unsigned int num = 1U << (8U - shift); + PNG_CONST unsigned int max = (1U << (16U - shift))-1U; + unsigned int i; + png_uint_32 last; + + png_uint_16pp table = *ptable = + (png_uint_16pp)png_calloc(png_ptr, num * (sizeof (png_uint_16p))); + + /* 'num' is the number of tables and also the number of low bits of low + * bits of the input 16-bit value used to select a table. Each table is + * itself index by the high 8 bits of the value. + */ + for (i = 0; i < num; i++) + table[i] = (png_uint_16p)png_malloc(png_ptr, + 256 * (sizeof (png_uint_16))); + + /* 'gamma_val' is set to the reciprocal of the value calculated above, so + * pow(out,g) is an *input* value. 'last' is the last input value set. + * + * In the loop 'i' is used to find output values. Since the output is + * 8-bit there are only 256 possible values. The tables are set up to + * select the closest possible output value for each input by finding + * the input value at the boundary between each pair of output values + * and filling the table up to that boundary with the lower output + * value. + * + * The boundary values are 0.5,1.5..253.5,254.5. Since these are 9-bit + * values the code below uses a 16-bit value in i; the values start at + * 128.5 (for 0.5) and step by 257, for a total of 254 values (the last + * entries are filled with 255). Start i at 128 and fill all 'last' + * table entries <= 'max' + */ + last = 0; + for (i = 0; i < 255; ++i) /* 8-bit output value */ + { + /* Find the corresponding maximum input value */ + png_uint_16 out = (png_uint_16)(i * 257U); /* 16-bit output value */ + + /* Find the boundary value in 16 bits: */ + png_uint_32 bound = png_gamma_16bit_correct(out+128U, gamma_val); + + /* Adjust (round) to (16-shift) bits: */ + bound = (bound * max + 32768U)/65535U + 1U; + + while (last < bound) + { + table[last & (0xffU >> shift)][last >> (8U - shift)] = out; + last++; + } + } + + /* And fill in the final entries. */ + while (last < (num << 8)) + { + table[last & (0xff >> shift)][last >> (8U - shift)] = 65535U; + last++; + } +} +#endif /* 16BIT */ + +/* Build a single 8-bit table: same as the 16-bit case but much simpler (and + * typically much faster). Note that libpng currently does no sBIT processing + * (apparently contrary to the spec) so a 256 entry table is always generated. + */ +static void +png_build_8bit_table(png_structrp png_ptr, png_bytepp ptable, + PNG_CONST png_fixed_point gamma_val) +{ + unsigned int i; + png_bytep table = *ptable = (png_bytep)png_malloc(png_ptr, 256); + + if (png_gamma_significant(gamma_val)) for (i=0; i<256; i++) + table[i] = png_gamma_8bit_correct(i, gamma_val); + + else for (i=0; i<256; ++i) + table[i] = (png_byte)i; +} + +/* Used from png_read_destroy and below to release the memory used by the gamma + * tables. + */ +void /* PRIVATE */ +png_destroy_gamma_table(png_structrp png_ptr) +{ + png_free(png_ptr, png_ptr->gamma_table); + png_ptr->gamma_table = NULL; + +#ifdef PNG_16BIT_SUPPORTED + if (png_ptr->gamma_16_table != NULL) + { + int i; + int istop = (1 << (8 - png_ptr->gamma_shift)); + for (i = 0; i < istop; i++) + { + png_free(png_ptr, png_ptr->gamma_16_table[i]); + } + png_free(png_ptr, png_ptr->gamma_16_table); + png_ptr->gamma_16_table = NULL; + } +#endif /* 16BIT */ + +#if defined(PNG_READ_BACKGROUND_SUPPORTED) || \ + defined(PNG_READ_ALPHA_MODE_SUPPORTED) || \ + defined(PNG_READ_RGB_TO_GRAY_SUPPORTED) + png_free(png_ptr, png_ptr->gamma_from_1); + png_ptr->gamma_from_1 = NULL; + png_free(png_ptr, png_ptr->gamma_to_1); + png_ptr->gamma_to_1 = NULL; + +#ifdef PNG_16BIT_SUPPORTED + if (png_ptr->gamma_16_from_1 != NULL) + { + int i; + int istop = (1 << (8 - png_ptr->gamma_shift)); + for (i = 0; i < istop; i++) + { + png_free(png_ptr, png_ptr->gamma_16_from_1[i]); + } + png_free(png_ptr, png_ptr->gamma_16_from_1); + png_ptr->gamma_16_from_1 = NULL; + } + if (png_ptr->gamma_16_to_1 != NULL) + { + int i; + int istop = (1 << (8 - png_ptr->gamma_shift)); + for (i = 0; i < istop; i++) + { + png_free(png_ptr, png_ptr->gamma_16_to_1[i]); + } + png_free(png_ptr, png_ptr->gamma_16_to_1); + png_ptr->gamma_16_to_1 = NULL; + } +#endif /* 16BIT */ +#endif /* READ_BACKGROUND || READ_ALPHA_MODE || RGB_TO_GRAY */ +} + +/* We build the 8- or 16-bit gamma tables here. Note that for 16-bit + * tables, we don't make a full table if we are reducing to 8-bit in + * the future. Note also how the gamma_16 tables are segmented so that + * we don't need to allocate > 64K chunks for a full 16-bit table. + */ +void /* PRIVATE */ +png_build_gamma_table(png_structrp png_ptr, int bit_depth) +{ + png_debug(1, "in png_build_gamma_table"); + + /* Remove any existing table; this copes with multiple calls to + * png_read_update_info. The warning is because building the gamma tables + * multiple times is a performance hit - it's harmless but the ability to call + * png_read_update_info() multiple times is new in 1.5.6 so it seems sensible + * to warn if the app introduces such a hit. + */ + if (png_ptr->gamma_table != NULL || png_ptr->gamma_16_table != NULL) + { + png_warning(png_ptr, "gamma table being rebuilt"); + png_destroy_gamma_table(png_ptr); + } + + if (bit_depth <= 8) + { + png_build_8bit_table(png_ptr, &png_ptr->gamma_table, + png_ptr->screen_gamma > 0 ? png_reciprocal2(png_ptr->colorspace.gamma, + png_ptr->screen_gamma) : PNG_FP_1); + +#if defined(PNG_READ_BACKGROUND_SUPPORTED) || \ + defined(PNG_READ_ALPHA_MODE_SUPPORTED) || \ + defined(PNG_READ_RGB_TO_GRAY_SUPPORTED) + if (png_ptr->transformations & (PNG_COMPOSE | PNG_RGB_TO_GRAY)) + { + png_build_8bit_table(png_ptr, &png_ptr->gamma_to_1, + png_reciprocal(png_ptr->colorspace.gamma)); + + png_build_8bit_table(png_ptr, &png_ptr->gamma_from_1, + png_ptr->screen_gamma > 0 ? png_reciprocal(png_ptr->screen_gamma) : + png_ptr->colorspace.gamma/* Probably doing rgb_to_gray */); + } +#endif /* READ_BACKGROUND || READ_ALPHA_MODE || RGB_TO_GRAY */ + } +#ifdef PNG_16BIT_SUPPORTED + else + { + png_byte shift, sig_bit; + + if (png_ptr->color_type & PNG_COLOR_MASK_COLOR) + { + sig_bit = png_ptr->sig_bit.red; + + if (png_ptr->sig_bit.green > sig_bit) + sig_bit = png_ptr->sig_bit.green; + + if (png_ptr->sig_bit.blue > sig_bit) + sig_bit = png_ptr->sig_bit.blue; + } + else + sig_bit = png_ptr->sig_bit.gray; + + /* 16-bit gamma code uses this equation: + * + * ov = table[(iv & 0xff) >> gamma_shift][iv >> 8] + * + * Where 'iv' is the input color value and 'ov' is the output value - + * pow(iv, gamma). + * + * Thus the gamma table consists of up to 256 256 entry tables. The table + * is selected by the (8-gamma_shift) most significant of the low 8 bits of + * the color value then indexed by the upper 8 bits: + * + * table[low bits][high 8 bits] + * + * So the table 'n' corresponds to all those 'iv' of: + * + * ..<(n+1 << gamma_shift)-1> + * + */ + if (sig_bit > 0 && sig_bit < 16U) + shift = (png_byte)(16U - sig_bit); /* shift == insignificant bits */ + + else + shift = 0; /* keep all 16 bits */ + + if (png_ptr->transformations & (PNG_16_TO_8 | PNG_SCALE_16_TO_8)) + { + /* PNG_MAX_GAMMA_8 is the number of bits to keep - effectively + * the significant bits in the *input* when the output will + * eventually be 8 bits. By default it is 11. + */ + if (shift < (16U - PNG_MAX_GAMMA_8)) + shift = (16U - PNG_MAX_GAMMA_8); + } + + if (shift > 8U) + shift = 8U; /* Guarantees at least one table! */ + + png_ptr->gamma_shift = shift; + + /* NOTE: prior to 1.5.4 this test used to include PNG_BACKGROUND (now + * PNG_COMPOSE). This effectively smashed the background calculation for + * 16-bit output because the 8-bit table assumes the result will be reduced + * to 8 bits. + */ + if (png_ptr->transformations & (PNG_16_TO_8 | PNG_SCALE_16_TO_8)) + png_build_16to8_table(png_ptr, &png_ptr->gamma_16_table, shift, + png_ptr->screen_gamma > 0 ? png_product2(png_ptr->colorspace.gamma, + png_ptr->screen_gamma) : PNG_FP_1); + + else + png_build_16bit_table(png_ptr, &png_ptr->gamma_16_table, shift, + png_ptr->screen_gamma > 0 ? png_reciprocal2(png_ptr->colorspace.gamma, + png_ptr->screen_gamma) : PNG_FP_1); + +#if defined(PNG_READ_BACKGROUND_SUPPORTED) || \ + defined(PNG_READ_ALPHA_MODE_SUPPORTED) || \ + defined(PNG_READ_RGB_TO_GRAY_SUPPORTED) + if (png_ptr->transformations & (PNG_COMPOSE | PNG_RGB_TO_GRAY)) + { + png_build_16bit_table(png_ptr, &png_ptr->gamma_16_to_1, shift, + png_reciprocal(png_ptr->colorspace.gamma)); + + /* Notice that the '16 from 1' table should be full precision, however + * the lookup on this table still uses gamma_shift, so it can't be. + * TODO: fix this. + */ + png_build_16bit_table(png_ptr, &png_ptr->gamma_16_from_1, shift, + png_ptr->screen_gamma > 0 ? png_reciprocal(png_ptr->screen_gamma) : + png_ptr->colorspace.gamma/* Probably doing rgb_to_gray */); + } +#endif /* READ_BACKGROUND || READ_ALPHA_MODE || RGB_TO_GRAY */ + } +#endif /* 16BIT */ +} +#endif /* READ_GAMMA */ + +/* HARDWARE OR SOFTWARE OPTION SUPPORT */ +#ifdef PNG_SET_OPTION_SUPPORTED +int PNGAPI +png_set_option(png_structrp png_ptr, int option, int onoff) +{ + if (png_ptr != NULL && option >= 0 && option < PNG_OPTION_NEXT && + (option & 1) == 0) + { + int mask = 3 << option; + int setting = (2 + (onoff != 0)) << option; + int current = png_ptr->options; + + png_ptr->options = (png_byte)((current & ~mask) | setting); + + return (current & mask) >> option; + } + + return PNG_OPTION_INVALID; +} +#endif + +/* sRGB support */ +#if defined(PNG_SIMPLIFIED_READ_SUPPORTED) ||\ + defined(PNG_SIMPLIFIED_WRITE_SUPPORTED) +/* sRGB conversion tables; these are machine generated with the code in + * contrib/tools/makesRGB.c. The actual sRGB transfer curve defined in the + * specification (see the article at http://en.wikipedia.org/wiki/SRGB) + * is used, not the gamma=1/2.2 approximation use elsewhere in libpng. + * The sRGB to linear table is exact (to the nearest 16 bit linear fraction). + * The inverse (linear to sRGB) table has accuracies as follows: + * + * For all possible (255*65535+1) input values: + * + * error: -0.515566 - 0.625971, 79441 (0.475369%) of readings inexact + * + * For the input values corresponding to the 65536 16-bit values: + * + * error: -0.513727 - 0.607759, 308 (0.469978%) of readings inexact + * + * In all cases the inexact readings are off by one. + */ + +#ifdef PNG_SIMPLIFIED_READ_SUPPORTED +/* The convert-to-sRGB table is only currently required for read. */ +const png_uint_16 png_sRGB_table[256] = +{ + 0,20,40,60,80,99,119,139, + 159,179,199,219,241,264,288,313, + 340,367,396,427,458,491,526,562, + 599,637,677,718,761,805,851,898, + 947,997,1048,1101,1156,1212,1270,1330, + 1391,1453,1517,1583,1651,1720,1790,1863, + 1937,2013,2090,2170,2250,2333,2418,2504, + 2592,2681,2773,2866,2961,3058,3157,3258, + 3360,3464,3570,3678,3788,3900,4014,4129, + 4247,4366,4488,4611,4736,4864,4993,5124, + 5257,5392,5530,5669,5810,5953,6099,6246, + 6395,6547,6700,6856,7014,7174,7335,7500, + 7666,7834,8004,8177,8352,8528,8708,8889, + 9072,9258,9445,9635,9828,10022,10219,10417, + 10619,10822,11028,11235,11446,11658,11873,12090, + 12309,12530,12754,12980,13209,13440,13673,13909, + 14146,14387,14629,14874,15122,15371,15623,15878, + 16135,16394,16656,16920,17187,17456,17727,18001, + 18277,18556,18837,19121,19407,19696,19987,20281, + 20577,20876,21177,21481,21787,22096,22407,22721, + 23038,23357,23678,24002,24329,24658,24990,25325, + 25662,26001,26344,26688,27036,27386,27739,28094, + 28452,28813,29176,29542,29911,30282,30656,31033, + 31412,31794,32179,32567,32957,33350,33745,34143, + 34544,34948,35355,35764,36176,36591,37008,37429, + 37852,38278,38706,39138,39572,40009,40449,40891, + 41337,41785,42236,42690,43147,43606,44069,44534, + 45002,45473,45947,46423,46903,47385,47871,48359, + 48850,49344,49841,50341,50844,51349,51858,52369, + 52884,53401,53921,54445,54971,55500,56032,56567, + 57105,57646,58190,58737,59287,59840,60396,60955, + 61517,62082,62650,63221,63795,64372,64952,65535 +}; + +#endif /* simplified read only */ + +/* The base/delta tables are required for both read and write (but currently + * only the simplified versions.) + */ +const png_uint_16 png_sRGB_base[512] = +{ + 128,1782,3383,4644,5675,6564,7357,8074, + 8732,9346,9921,10463,10977,11466,11935,12384, + 12816,13233,13634,14024,14402,14769,15125,15473, + 15812,16142,16466,16781,17090,17393,17690,17981, + 18266,18546,18822,19093,19359,19621,19879,20133, + 20383,20630,20873,21113,21349,21583,21813,22041, + 22265,22487,22707,22923,23138,23350,23559,23767, + 23972,24175,24376,24575,24772,24967,25160,25352, + 25542,25730,25916,26101,26284,26465,26645,26823, + 27000,27176,27350,27523,27695,27865,28034,28201, + 28368,28533,28697,28860,29021,29182,29341,29500, + 29657,29813,29969,30123,30276,30429,30580,30730, + 30880,31028,31176,31323,31469,31614,31758,31902, + 32045,32186,32327,32468,32607,32746,32884,33021, + 33158,33294,33429,33564,33697,33831,33963,34095, + 34226,34357,34486,34616,34744,34873,35000,35127, + 35253,35379,35504,35629,35753,35876,35999,36122, + 36244,36365,36486,36606,36726,36845,36964,37083, + 37201,37318,37435,37551,37668,37783,37898,38013, + 38127,38241,38354,38467,38580,38692,38803,38915, + 39026,39136,39246,39356,39465,39574,39682,39790, + 39898,40005,40112,40219,40325,40431,40537,40642, + 40747,40851,40955,41059,41163,41266,41369,41471, + 41573,41675,41777,41878,41979,42079,42179,42279, + 42379,42478,42577,42676,42775,42873,42971,43068, + 43165,43262,43359,43456,43552,43648,43743,43839, + 43934,44028,44123,44217,44311,44405,44499,44592, + 44685,44778,44870,44962,45054,45146,45238,45329, + 45420,45511,45601,45692,45782,45872,45961,46051, + 46140,46229,46318,46406,46494,46583,46670,46758, + 46846,46933,47020,47107,47193,47280,47366,47452, + 47538,47623,47709,47794,47879,47964,48048,48133, + 48217,48301,48385,48468,48552,48635,48718,48801, + 48884,48966,49048,49131,49213,49294,49376,49458, + 49539,49620,49701,49782,49862,49943,50023,50103, + 50183,50263,50342,50422,50501,50580,50659,50738, + 50816,50895,50973,51051,51129,51207,51285,51362, + 51439,51517,51594,51671,51747,51824,51900,51977, + 52053,52129,52205,52280,52356,52432,52507,52582, + 52657,52732,52807,52881,52956,53030,53104,53178, + 53252,53326,53400,53473,53546,53620,53693,53766, + 53839,53911,53984,54056,54129,54201,54273,54345, + 54417,54489,54560,54632,54703,54774,54845,54916, + 54987,55058,55129,55199,55269,55340,55410,55480, + 55550,55620,55689,55759,55828,55898,55967,56036, + 56105,56174,56243,56311,56380,56448,56517,56585, + 56653,56721,56789,56857,56924,56992,57059,57127, + 57194,57261,57328,57395,57462,57529,57595,57662, + 57728,57795,57861,57927,57993,58059,58125,58191, + 58256,58322,58387,58453,58518,58583,58648,58713, + 58778,58843,58908,58972,59037,59101,59165,59230, + 59294,59358,59422,59486,59549,59613,59677,59740, + 59804,59867,59930,59993,60056,60119,60182,60245, + 60308,60370,60433,60495,60558,60620,60682,60744, + 60806,60868,60930,60992,61054,61115,61177,61238, + 61300,61361,61422,61483,61544,61605,61666,61727, + 61788,61848,61909,61969,62030,62090,62150,62211, + 62271,62331,62391,62450,62510,62570,62630,62689, + 62749,62808,62867,62927,62986,63045,63104,63163, + 63222,63281,63340,63398,63457,63515,63574,63632, + 63691,63749,63807,63865,63923,63981,64039,64097, + 64155,64212,64270,64328,64385,64443,64500,64557, + 64614,64672,64729,64786,64843,64900,64956,65013, + 65070,65126,65183,65239,65296,65352,65409,65465 +}; + +const png_byte png_sRGB_delta[512] = +{ + 207,201,158,129,113,100,90,82,77,72,68,64,61,59,56,54, + 52,50,49,47,46,45,43,42,41,40,39,39,38,37,36,36, + 35,34,34,33,33,32,32,31,31,30,30,30,29,29,28,28, + 28,27,27,27,27,26,26,26,25,25,25,25,24,24,24,24, + 23,23,23,23,23,22,22,22,22,22,22,21,21,21,21,21, + 21,20,20,20,20,20,20,20,20,19,19,19,19,19,19,19, + 19,18,18,18,18,18,18,18,18,18,18,17,17,17,17,17, + 17,17,17,17,17,17,16,16,16,16,16,16,16,16,16,16, + 16,16,16,16,15,15,15,15,15,15,15,15,15,15,15,15, + 15,15,15,15,14,14,14,14,14,14,14,14,14,14,14,14, + 14,14,14,14,14,14,14,13,13,13,13,13,13,13,13,13, + 13,13,13,13,13,13,13,13,13,13,13,13,13,13,12,12, + 12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12, + 12,12,12,12,12,12,12,12,12,12,12,12,11,11,11,11, + 11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11, + 11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11, + 11,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10, + 10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10, + 10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10, + 10,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9, + 9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9, + 9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9, + 9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9, + 9,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8, + 8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8, + 8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8, + 8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8, + 8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8, + 8,8,8,8,8,8,8,8,8,7,7,7,7,7,7,7, + 7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7, + 7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7, + 7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7 +}; +#endif /* SIMPLIFIED READ/WRITE sRGB support */ + +/* SIMPLIFIED READ/WRITE SUPPORT */ +#if defined(PNG_SIMPLIFIED_READ_SUPPORTED) ||\ + defined(PNG_SIMPLIFIED_WRITE_SUPPORTED) +static int +png_image_free_function(png_voidp argument) +{ + png_imagep image = png_voidcast(png_imagep, argument); + png_controlp cp = image->opaque; + png_control c; + + /* Double check that we have a png_ptr - it should be impossible to get here + * without one. + */ + if (cp->png_ptr == NULL) + return 0; + + /* First free any data held in the control structure. */ +# ifdef PNG_STDIO_SUPPORTED + if (cp->owned_file) + { + FILE *fp = png_voidcast(FILE*, cp->png_ptr->io_ptr); + cp->owned_file = 0; + + /* Ignore errors here. */ + if (fp != NULL) + { + cp->png_ptr->io_ptr = NULL; + (void)fclose(fp); + } + } +# endif + + /* Copy the control structure so that the original, allocated, version can be + * safely freed. Notice that a png_error here stops the remainder of the + * cleanup, but this is probably fine because that would indicate bad memory + * problems anyway. + */ + c = *cp; + image->opaque = &c; + png_free(c.png_ptr, cp); + + /* Then the structures, calling the correct API. */ + if (c.for_write) + { +# ifdef PNG_SIMPLIFIED_WRITE_SUPPORTED + png_destroy_write_struct(&c.png_ptr, &c.info_ptr); +# else + png_error(c.png_ptr, "simplified write not supported"); +# endif + } + else + { +# ifdef PNG_SIMPLIFIED_READ_SUPPORTED + png_destroy_read_struct(&c.png_ptr, &c.info_ptr, NULL); +# else + png_error(c.png_ptr, "simplified read not supported"); +# endif + } + + /* Success. */ + return 1; +} + +void PNGAPI +png_image_free(png_imagep image) +{ + /* Safely call the real function, but only if doing so is safe at this point + * (if not inside an error handling context). Otherwise assume + * png_safe_execute will call this API after the return. + */ + if (image != NULL && image->opaque != NULL && + image->opaque->error_buf == NULL) + { + /* Ignore errors here: */ + (void)png_safe_execute(image, png_image_free_function, image); + image->opaque = NULL; + } +} + +int /* PRIVATE */ +png_image_error(png_imagep image, png_const_charp error_message) +{ + /* Utility to log an error. */ + png_safecat(image->message, (sizeof image->message), 0, error_message); + image->warning_or_error |= PNG_IMAGE_ERROR; + png_image_free(image); + return 0; +} + +#endif /* SIMPLIFIED READ/WRITE */ +#endif /* defined(PNG_READ_SUPPORTED) || defined(PNG_WRITE_SUPPORTED) */ diff --git a/png/png.h b/png/png.h new file mode 100644 index 0000000..75e8736 --- /dev/null +++ b/png/png.h @@ -0,0 +1,3268 @@ + +/* png.h - header file for PNG reference library + * + * libpng version 1.6.12 - June 12, 2014 + * Copyright (c) 1998-2014 Glenn Randers-Pehrson + * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) + * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) + * + * This code is released under the libpng license (See LICENSE, below) + * + * Authors and maintainers: + * libpng versions 0.71, May 1995, through 0.88, January 1996: Guy Schalnat + * libpng versions 0.89c, June 1996, through 0.96, May 1997: Andreas Dilger + * libpng versions 0.97, January 1998, through 1.6.12 - June 12, 2014: Glenn + * See also "Contributing Authors", below. + * + * Note about libpng version numbers: + * + * Due to various miscommunications, unforeseen code incompatibilities + * and occasional factors outside the authors' control, version numbering + * on the library has not always been consistent and straightforward. + * The following table summarizes matters since version 0.89c, which was + * the first widely used release: + * + * source png.h png.h shared-lib + * version string int version + * ------- ------ ----- ---------- + * 0.89c "1.0 beta 3" 0.89 89 1.0.89 + * 0.90 "1.0 beta 4" 0.90 90 0.90 [should have been 2.0.90] + * 0.95 "1.0 beta 5" 0.95 95 0.95 [should have been 2.0.95] + * 0.96 "1.0 beta 6" 0.96 96 0.96 [should have been 2.0.96] + * 0.97b "1.00.97 beta 7" 1.00.97 97 1.0.1 [should have been 2.0.97] + * 0.97c 0.97 97 2.0.97 + * 0.98 0.98 98 2.0.98 + * 0.99 0.99 98 2.0.99 + * 0.99a-m 0.99 99 2.0.99 + * 1.00 1.00 100 2.1.0 [100 should be 10000] + * 1.0.0 (from here on, the 100 2.1.0 [100 should be 10000] + * 1.0.1 png.h string is 10001 2.1.0 + * 1.0.1a-e identical to the 10002 from here on, the shared library + * 1.0.2 source version) 10002 is 2.V where V is the source code + * 1.0.2a-b 10003 version, except as noted. + * 1.0.3 10003 + * 1.0.3a-d 10004 + * 1.0.4 10004 + * 1.0.4a-f 10005 + * 1.0.5 (+ 2 patches) 10005 + * 1.0.5a-d 10006 + * 1.0.5e-r 10100 (not source compatible) + * 1.0.5s-v 10006 (not binary compatible) + * 1.0.6 (+ 3 patches) 10006 (still binary incompatible) + * 1.0.6d-f 10007 (still binary incompatible) + * 1.0.6g 10007 + * 1.0.6h 10007 10.6h (testing xy.z so-numbering) + * 1.0.6i 10007 10.6i + * 1.0.6j 10007 2.1.0.6j (incompatible with 1.0.0) + * 1.0.7beta11-14 DLLNUM 10007 2.1.0.7beta11-14 (binary compatible) + * 1.0.7beta15-18 1 10007 2.1.0.7beta15-18 (binary compatible) + * 1.0.7rc1-2 1 10007 2.1.0.7rc1-2 (binary compatible) + * 1.0.7 1 10007 (still compatible) + * 1.0.8beta1-4 1 10008 2.1.0.8beta1-4 + * 1.0.8rc1 1 10008 2.1.0.8rc1 + * 1.0.8 1 10008 2.1.0.8 + * 1.0.9beta1-6 1 10009 2.1.0.9beta1-6 + * 1.0.9rc1 1 10009 2.1.0.9rc1 + * 1.0.9beta7-10 1 10009 2.1.0.9beta7-10 + * 1.0.9rc2 1 10009 2.1.0.9rc2 + * 1.0.9 1 10009 2.1.0.9 + * 1.0.10beta1 1 10010 2.1.0.10beta1 + * 1.0.10rc1 1 10010 2.1.0.10rc1 + * 1.0.10 1 10010 2.1.0.10 + * 1.0.11beta1-3 1 10011 2.1.0.11beta1-3 + * 1.0.11rc1 1 10011 2.1.0.11rc1 + * 1.0.11 1 10011 2.1.0.11 + * 1.0.12beta1-2 2 10012 2.1.0.12beta1-2 + * 1.0.12rc1 2 10012 2.1.0.12rc1 + * 1.0.12 2 10012 2.1.0.12 + * 1.1.0a-f - 10100 2.1.1.0a-f (branch abandoned) + * 1.2.0beta1-2 2 10200 2.1.2.0beta1-2 + * 1.2.0beta3-5 3 10200 3.1.2.0beta3-5 + * 1.2.0rc1 3 10200 3.1.2.0rc1 + * 1.2.0 3 10200 3.1.2.0 + * 1.2.1beta1-4 3 10201 3.1.2.1beta1-4 + * 1.2.1rc1-2 3 10201 3.1.2.1rc1-2 + * 1.2.1 3 10201 3.1.2.1 + * 1.2.2beta1-6 12 10202 12.so.0.1.2.2beta1-6 + * 1.0.13beta1 10 10013 10.so.0.1.0.13beta1 + * 1.0.13rc1 10 10013 10.so.0.1.0.13rc1 + * 1.2.2rc1 12 10202 12.so.0.1.2.2rc1 + * 1.0.13 10 10013 10.so.0.1.0.13 + * 1.2.2 12 10202 12.so.0.1.2.2 + * 1.2.3rc1-6 12 10203 12.so.0.1.2.3rc1-6 + * 1.2.3 12 10203 12.so.0.1.2.3 + * 1.2.4beta1-3 13 10204 12.so.0.1.2.4beta1-3 + * 1.0.14rc1 13 10014 10.so.0.1.0.14rc1 + * 1.2.4rc1 13 10204 12.so.0.1.2.4rc1 + * 1.0.14 10 10014 10.so.0.1.0.14 + * 1.2.4 13 10204 12.so.0.1.2.4 + * 1.2.5beta1-2 13 10205 12.so.0.1.2.5beta1-2 + * 1.0.15rc1-3 10 10015 10.so.0.1.0.15rc1-3 + * 1.2.5rc1-3 13 10205 12.so.0.1.2.5rc1-3 + * 1.0.15 10 10015 10.so.0.1.0.15 + * 1.2.5 13 10205 12.so.0.1.2.5 + * 1.2.6beta1-4 13 10206 12.so.0.1.2.6beta1-4 + * 1.0.16 10 10016 10.so.0.1.0.16 + * 1.2.6 13 10206 12.so.0.1.2.6 + * 1.2.7beta1-2 13 10207 12.so.0.1.2.7beta1-2 + * 1.0.17rc1 10 10017 12.so.0.1.0.17rc1 + * 1.2.7rc1 13 10207 12.so.0.1.2.7rc1 + * 1.0.17 10 10017 12.so.0.1.0.17 + * 1.2.7 13 10207 12.so.0.1.2.7 + * 1.2.8beta1-5 13 10208 12.so.0.1.2.8beta1-5 + * 1.0.18rc1-5 10 10018 12.so.0.1.0.18rc1-5 + * 1.2.8rc1-5 13 10208 12.so.0.1.2.8rc1-5 + * 1.0.18 10 10018 12.so.0.1.0.18 + * 1.2.8 13 10208 12.so.0.1.2.8 + * 1.2.9beta1-3 13 10209 12.so.0.1.2.9beta1-3 + * 1.2.9beta4-11 13 10209 12.so.0.9[.0] + * 1.2.9rc1 13 10209 12.so.0.9[.0] + * 1.2.9 13 10209 12.so.0.9[.0] + * 1.2.10beta1-7 13 10210 12.so.0.10[.0] + * 1.2.10rc1-2 13 10210 12.so.0.10[.0] + * 1.2.10 13 10210 12.so.0.10[.0] + * 1.4.0beta1-5 14 10400 14.so.0.0[.0] + * 1.2.11beta1-4 13 10211 12.so.0.11[.0] + * 1.4.0beta7-8 14 10400 14.so.0.0[.0] + * 1.2.11 13 10211 12.so.0.11[.0] + * 1.2.12 13 10212 12.so.0.12[.0] + * 1.4.0beta9-14 14 10400 14.so.0.0[.0] + * 1.2.13 13 10213 12.so.0.13[.0] + * 1.4.0beta15-36 14 10400 14.so.0.0[.0] + * 1.4.0beta37-87 14 10400 14.so.14.0[.0] + * 1.4.0rc01 14 10400 14.so.14.0[.0] + * 1.4.0beta88-109 14 10400 14.so.14.0[.0] + * 1.4.0rc02-08 14 10400 14.so.14.0[.0] + * 1.4.0 14 10400 14.so.14.0[.0] + * 1.4.1beta01-03 14 10401 14.so.14.1[.0] + * 1.4.1rc01 14 10401 14.so.14.1[.0] + * 1.4.1beta04-12 14 10401 14.so.14.1[.0] + * 1.4.1 14 10401 14.so.14.1[.0] + * 1.4.2 14 10402 14.so.14.2[.0] + * 1.4.3 14 10403 14.so.14.3[.0] + * 1.4.4 14 10404 14.so.14.4[.0] + * 1.5.0beta01-58 15 10500 15.so.15.0[.0] + * 1.5.0rc01-07 15 10500 15.so.15.0[.0] + * 1.5.0 15 10500 15.so.15.0[.0] + * 1.5.1beta01-11 15 10501 15.so.15.1[.0] + * 1.5.1rc01-02 15 10501 15.so.15.1[.0] + * 1.5.1 15 10501 15.so.15.1[.0] + * 1.5.2beta01-03 15 10502 15.so.15.2[.0] + * 1.5.2rc01-03 15 10502 15.so.15.2[.0] + * 1.5.2 15 10502 15.so.15.2[.0] + * 1.5.3beta01-10 15 10503 15.so.15.3[.0] + * 1.5.3rc01-02 15 10503 15.so.15.3[.0] + * 1.5.3beta11 15 10503 15.so.15.3[.0] + * 1.5.3 [omitted] + * 1.5.4beta01-08 15 10504 15.so.15.4[.0] + * 1.5.4rc01 15 10504 15.so.15.4[.0] + * 1.5.4 15 10504 15.so.15.4[.0] + * 1.5.5beta01-08 15 10505 15.so.15.5[.0] + * 1.5.5rc01 15 10505 15.so.15.5[.0] + * 1.5.5 15 10505 15.so.15.5[.0] + * 1.5.6beta01-07 15 10506 15.so.15.6[.0] + * 1.5.6rc01-03 15 10506 15.so.15.6[.0] + * 1.5.6 15 10506 15.so.15.6[.0] + * 1.5.7beta01-05 15 10507 15.so.15.7[.0] + * 1.5.7rc01-03 15 10507 15.so.15.7[.0] + * 1.5.7 15 10507 15.so.15.7[.0] + * 1.6.0beta01-40 16 10600 16.so.16.0[.0] + * 1.6.0rc01-08 16 10600 16.so.16.0[.0] + * 1.6.0 16 10600 16.so.16.0[.0] + * 1.6.1beta01-09 16 10601 16.so.16.1[.0] + * 1.6.1rc01 16 10601 16.so.16.1[.0] + * 1.6.1 16 10601 16.so.16.1[.0] + * 1.6.2beta01 16 10602 16.so.16.2[.0] + * 1.6.2rc01-06 16 10602 16.so.16.2[.0] + * 1.6.2 16 10602 16.so.16.2[.0] + * 1.6.3beta01-11 16 10603 16.so.16.3[.0] + * 1.6.3rc01 16 10603 16.so.16.3[.0] + * 1.6.3 16 10603 16.so.16.3[.0] + * 1.6.4beta01-02 16 10604 16.so.16.4[.0] + * 1.6.4rc01 16 10604 16.so.16.4[.0] + * 1.6.4 16 10604 16.so.16.4[.0] + * 1.6.5 16 10605 16.so.16.5[.0] + * 1.6.6 16 10606 16.so.16.6[.0] + * 1.6.7beta01-04 16 10607 16.so.16.7[.0] + * 1.6.7rc01-03 16 10607 16.so.16.7[.0] + * 1.6.7 16 10607 16.so.16.7[.0] + * 1.6.8beta01-02 16 10608 16.so.16.8[.0] + * 1.6.8rc01-02 16 10608 16.so.16.8[.0] + * 1.6.8 16 10608 16.so.16.8[.0] + * 1.6.9beta01-04 16 10609 16.so.16.9[.0] + * 1.6.9rc01-02 16 10609 16.so.16.9[.0] + * 1.6.9 16 10609 16.so.16.9[.0] + * 1.6.10beta01-03 16 10610 16.so.16.10[.0] + * 1.6.10rc01-03 16 10610 16.so.16.10[.0] + * 1.6.10 16 10610 16.so.16.10[.0] + * 1.6.11beta01-06 16 10611 16.so.16.11[.0] + * 1.6.11rc01-02 16 10611 16.so.16.11[.0] + * 1.6.11 16 10611 16.so.16.11[.0] + * 1.6.12rc01-03 16 10612 16.so.16.12[.0] + * 1.6.12 16 10612 16.so.16.12[.0] + * + * Henceforth the source version will match the shared-library major + * and minor numbers; the shared-library major version number will be + * used for changes in backward compatibility, as it is intended. The + * PNG_LIBPNG_VER macro, which is not used within libpng but is available + * for applications, is an unsigned integer of the form xyyzz corresponding + * to the source version x.y.z (leading zeros in y and z). Beta versions + * were given the previous public release number plus a letter, until + * version 1.0.6j; from then on they were given the upcoming public + * release number plus "betaNN" or "rcNN". + * + * Binary incompatibility exists only when applications make direct access + * to the info_ptr or png_ptr members through png.h, and the compiled + * application is loaded with a different version of the library. + * + * DLLNUM will change each time there are forward or backward changes + * in binary compatibility (e.g., when a new feature is added). + * + * See libpng-manual.txt or libpng.3 for more information. The PNG + * specification is available as a W3C Recommendation and as an ISO + * Specification, + * + * If you just need to read a PNG file and don't want to read the documentation + * skip to the end of this file and read the section entitled 'simplified API'. + */ + +/* Version information for png.h - this should match the version in png.c */ +#define PNG_LIBPNG_VER_STRING "1.6.12" +#define PNG_HEADER_VERSION_STRING \ + " libpng version 1.6.12 - June 12, 2014\n" + +#define PNG_LIBPNG_VER_SONUM 16 +#define PNG_LIBPNG_VER_DLLNUM 16 + +/* These should match the first 3 components of PNG_LIBPNG_VER_STRING: */ +#define PNG_LIBPNG_VER_MAJOR 1 +#define PNG_LIBPNG_VER_MINOR 6 +#define PNG_LIBPNG_VER_RELEASE 12 + +/* This should match the numeric part of the final component of + * PNG_LIBPNG_VER_STRING, omitting any leading zero: + */ + +#define PNG_LIBPNG_VER_BUILD 0 + +/* Release Status */ +#define PNG_LIBPNG_BUILD_ALPHA 1 +#define PNG_LIBPNG_BUILD_BETA 2 +#define PNG_LIBPNG_BUILD_RC 3 +#define PNG_LIBPNG_BUILD_STABLE 4 +#define PNG_LIBPNG_BUILD_RELEASE_STATUS_MASK 7 + +/* Release-Specific Flags */ +#define PNG_LIBPNG_BUILD_PATCH 8 /* Can be OR'ed with + PNG_LIBPNG_BUILD_STABLE only */ +#define PNG_LIBPNG_BUILD_PRIVATE 16 /* Cannot be OR'ed with + PNG_LIBPNG_BUILD_SPECIAL */ +#define PNG_LIBPNG_BUILD_SPECIAL 32 /* Cannot be OR'ed with + PNG_LIBPNG_BUILD_PRIVATE */ + +#define PNG_LIBPNG_BUILD_BASE_TYPE PNG_LIBPNG_BUILD_STABLE + +/* Careful here. At one time, Guy wanted to use 082, but that would be octal. + * We must not include leading zeros. + * Versions 0.7 through 1.0.0 were in the range 0 to 100 here (only + * version 1.0.0 was mis-numbered 100 instead of 10000). From + * version 1.0.1 it's xxyyzz, where x=major, y=minor, z=release + */ +#define PNG_LIBPNG_VER 10612 /* 1.6.12 */ + +/* Library configuration: these options cannot be changed after + * the library has been built. + */ +#ifndef PNGLCONF_H + /* If pnglibconf.h is missing, you can + * copy scripts/pnglibconf.h.prebuilt to pnglibconf.h + */ +# include "pnglibconf.h" +#endif + +#ifndef PNG_VERSION_INFO_ONLY + /* Machine specific configuration. */ +# include "pngconf.h" +#endif + +/* + * Added at libpng-1.2.8 + * + * Ref MSDN: Private as priority over Special + * VS_FF_PRIVATEBUILD File *was not* built using standard release + * procedures. If this value is given, the StringFileInfo block must + * contain a PrivateBuild string. + * + * VS_FF_SPECIALBUILD File *was* built by the original company using + * standard release procedures but is a variation of the standard + * file of the same version number. If this value is given, the + * StringFileInfo block must contain a SpecialBuild string. + */ + +#ifdef PNG_USER_PRIVATEBUILD /* From pnglibconf.h */ +# define PNG_LIBPNG_BUILD_TYPE \ + (PNG_LIBPNG_BUILD_BASE_TYPE | PNG_LIBPNG_BUILD_PRIVATE) +#else +# ifdef PNG_LIBPNG_SPECIALBUILD +# define PNG_LIBPNG_BUILD_TYPE \ + (PNG_LIBPNG_BUILD_BASE_TYPE | PNG_LIBPNG_BUILD_SPECIAL) +# else +# define PNG_LIBPNG_BUILD_TYPE (PNG_LIBPNG_BUILD_BASE_TYPE) +# endif +#endif + +#ifndef PNG_VERSION_INFO_ONLY + +/* Inhibit C++ name-mangling for libpng functions but not for system calls. */ +#ifdef __cplusplus +extern "C" { +#endif /* __cplusplus */ + +/* Version information for C files, stored in png.c. This had better match + * the version above. + */ +#define png_libpng_ver png_get_header_ver(NULL) + +/* This file is arranged in several sections: + * + * 1. Any configuration options that can be specified by for the application + * code when it is built. (Build time configuration is in pnglibconf.h) + * 2. Type definitions (base types are defined in pngconf.h), structure + * definitions. + * 3. Exported library functions. + * 4. Simplified API. + * + * The library source code has additional files (principally pngpriv.h) that + * allow configuration of the library. + */ +/* Section 1: run time configuration + * See pnglibconf.h for build time configuration + * + * Run time configuration allows the application to choose between + * implementations of certain arithmetic APIs. The default is set + * at build time and recorded in pnglibconf.h, but it is safe to + * override these (and only these) settings. Note that this won't + * change what the library does, only application code, and the + * settings can (and probably should) be made on a per-file basis + * by setting the #defines before including png.h + * + * Use macros to read integers from PNG data or use the exported + * functions? + * PNG_USE_READ_MACROS: use the macros (see below) Note that + * the macros evaluate their argument multiple times. + * PNG_NO_USE_READ_MACROS: call the relevant library function. + * + * Use the alternative algorithm for compositing alpha samples that + * does not use division? + * PNG_READ_COMPOSITE_NODIV_SUPPORTED: use the 'no division' + * algorithm. + * PNG_NO_READ_COMPOSITE_NODIV: use the 'division' algorithm. + * + * How to handle benign errors if PNG_ALLOW_BENIGN_ERRORS is + * false? + * PNG_ALLOW_BENIGN_ERRORS: map calls to the benign error + * APIs to png_warning. + * Otherwise the calls are mapped to png_error. + */ + +/* Section 2: type definitions, including structures and compile time + * constants. + * See pngconf.h for base types that vary by machine/system + */ + +/* This triggers a compiler error in png.c, if png.c and png.h + * do not agree upon the version number. + */ +typedef char* png_libpng_version_1_6_12; + +/* Basic control structions. Read libpng-manual.txt or libpng.3 for more info. + * + * png_struct is the cache of information used while reading or writing a single + * PNG file. One of these is always required, although the simplified API + * (below) hides the creation and destruction of it. + */ +typedef struct png_struct_def png_struct; +typedef const png_struct * png_const_structp; +typedef png_struct * png_structp; +typedef png_struct * * png_structpp; + +/* png_info contains information read from or to be written to a PNG file. One + * or more of these must exist while reading or creating a PNG file. The + * information is not used by libpng during read but is used to control what + * gets written when a PNG file is created. "png_get_" function calls read + * information during read and "png_set_" functions calls write information + * when creating a PNG. + * been moved into a separate header file that is not accessible to + * applications. Read libpng-manual.txt or libpng.3 for more info. + */ +typedef struct png_info_def png_info; +typedef png_info * png_infop; +typedef const png_info * png_const_infop; +typedef png_info * * png_infopp; + +/* Types with names ending 'p' are pointer types. The corresponding types with + * names ending 'rp' are identical pointer types except that the pointer is + * marked 'restrict', which means that it is the only pointer to the object + * passed to the function. Applications should not use the 'restrict' types; + * it is always valid to pass 'p' to a pointer with a function argument of the + * corresponding 'rp' type. Different compilers have different rules with + * regard to type matching in the presence of 'restrict'. For backward + * compatibility libpng callbacks never have 'restrict' in their parameters and, + * consequentially, writing portable application code is extremely difficult if + * an attempt is made to use 'restrict'. + */ +typedef png_struct * PNG_RESTRICT png_structrp; +typedef const png_struct * PNG_RESTRICT png_const_structrp; +typedef png_info * PNG_RESTRICT png_inforp; +typedef const png_info * PNG_RESTRICT png_const_inforp; + +/* Three color definitions. The order of the red, green, and blue, (and the + * exact size) is not important, although the size of the fields need to + * be png_byte or png_uint_16 (as defined below). + */ +typedef struct png_color_struct +{ + png_byte red; + png_byte green; + png_byte blue; +} png_color; +typedef png_color * png_colorp; +typedef const png_color * png_const_colorp; +typedef png_color * * png_colorpp; + +typedef struct png_color_16_struct +{ + png_byte index; /* used for palette files */ + png_uint_16 red; /* for use in red green blue files */ + png_uint_16 green; + png_uint_16 blue; + png_uint_16 gray; /* for use in grayscale files */ +} png_color_16; +typedef png_color_16 * png_color_16p; +typedef const png_color_16 * png_const_color_16p; +typedef png_color_16 * * png_color_16pp; + +typedef struct png_color_8_struct +{ + png_byte red; /* for use in red green blue files */ + png_byte green; + png_byte blue; + png_byte gray; /* for use in grayscale files */ + png_byte alpha; /* for alpha channel files */ +} png_color_8; +typedef png_color_8 * png_color_8p; +typedef const png_color_8 * png_const_color_8p; +typedef png_color_8 * * png_color_8pp; + +/* + * The following two structures are used for the in-core representation + * of sPLT chunks. + */ +typedef struct png_sPLT_entry_struct +{ + png_uint_16 red; + png_uint_16 green; + png_uint_16 blue; + png_uint_16 alpha; + png_uint_16 frequency; +} png_sPLT_entry; +typedef png_sPLT_entry * png_sPLT_entryp; +typedef const png_sPLT_entry * png_const_sPLT_entryp; +typedef png_sPLT_entry * * png_sPLT_entrypp; + +/* When the depth of the sPLT palette is 8 bits, the color and alpha samples + * occupy the LSB of their respective members, and the MSB of each member + * is zero-filled. The frequency member always occupies the full 16 bits. + */ + +typedef struct png_sPLT_struct +{ + png_charp name; /* palette name */ + png_byte depth; /* depth of palette samples */ + png_sPLT_entryp entries; /* palette entries */ + png_int_32 nentries; /* number of palette entries */ +} png_sPLT_t; +typedef png_sPLT_t * png_sPLT_tp; +typedef const png_sPLT_t * png_const_sPLT_tp; +typedef png_sPLT_t * * png_sPLT_tpp; + +#ifdef PNG_TEXT_SUPPORTED +/* png_text holds the contents of a text/ztxt/itxt chunk in a PNG file, + * and whether that contents is compressed or not. The "key" field + * points to a regular zero-terminated C string. The "text" fields can be a + * regular C string, an empty string, or a NULL pointer. + * However, the structure returned by png_get_text() will always contain + * the "text" field as a regular zero-terminated C string (possibly + * empty), never a NULL pointer, so it can be safely used in printf() and + * other string-handling functions. Note that the "itxt_length", "lang", and + * "lang_key" members of the structure only exist when the library is built + * with iTXt chunk support. Prior to libpng-1.4.0 the library was built by + * default without iTXt support. Also note that when iTXt *is* supported, + * the "lang" and "lang_key" fields contain NULL pointers when the + * "compression" field contains * PNG_TEXT_COMPRESSION_NONE or + * PNG_TEXT_COMPRESSION_zTXt. Note that the "compression value" is not the + * same as what appears in the PNG tEXt/zTXt/iTXt chunk's "compression flag" + * which is always 0 or 1, or its "compression method" which is always 0. + */ +typedef struct png_text_struct +{ + int compression; /* compression value: + -1: tEXt, none + 0: zTXt, deflate + 1: iTXt, none + 2: iTXt, deflate */ + png_charp key; /* keyword, 1-79 character description of "text" */ + png_charp text; /* comment, may be an empty string (ie "") + or a NULL pointer */ + png_size_t text_length; /* length of the text string */ + png_size_t itxt_length; /* length of the itxt string */ + png_charp lang; /* language code, 0-79 characters + or a NULL pointer */ + png_charp lang_key; /* keyword translated UTF-8 string, 0 or more + chars or a NULL pointer */ +} png_text; +typedef png_text * png_textp; +typedef const png_text * png_const_textp; +typedef png_text * * png_textpp; +#endif + +/* Supported compression types for text in PNG files (tEXt, and zTXt). + * The values of the PNG_TEXT_COMPRESSION_ defines should NOT be changed. */ +#define PNG_TEXT_COMPRESSION_NONE_WR -3 +#define PNG_TEXT_COMPRESSION_zTXt_WR -2 +#define PNG_TEXT_COMPRESSION_NONE -1 +#define PNG_TEXT_COMPRESSION_zTXt 0 +#define PNG_ITXT_COMPRESSION_NONE 1 +#define PNG_ITXT_COMPRESSION_zTXt 2 +#define PNG_TEXT_COMPRESSION_LAST 3 /* Not a valid value */ + +/* png_time is a way to hold the time in an machine independent way. + * Two conversions are provided, both from time_t and struct tm. There + * is no portable way to convert to either of these structures, as far + * as I know. If you know of a portable way, send it to me. As a side + * note - PNG has always been Year 2000 compliant! + */ +typedef struct png_time_struct +{ + png_uint_16 year; /* full year, as in, 1995 */ + png_byte month; /* month of year, 1 - 12 */ + png_byte day; /* day of month, 1 - 31 */ + png_byte hour; /* hour of day, 0 - 23 */ + png_byte minute; /* minute of hour, 0 - 59 */ + png_byte second; /* second of minute, 0 - 60 (for leap seconds) */ +} png_time; +typedef png_time * png_timep; +typedef const png_time * png_const_timep; +typedef png_time * * png_timepp; + +#if defined(PNG_STORE_UNKNOWN_CHUNKS_SUPPORTED) ||\ + defined(PNG_USER_CHUNKS_SUPPORTED) +/* png_unknown_chunk is a structure to hold queued chunks for which there is + * no specific support. The idea is that we can use this to queue + * up private chunks for output even though the library doesn't actually + * know about their semantics. + * + * The data in the structure is set by libpng on read and used on write. + */ +typedef struct png_unknown_chunk_t +{ + png_byte name[5]; /* Textual chunk name with '\0' terminator */ + png_byte *data; /* Data, should not be modified on read! */ + png_size_t size; + + /* On write 'location' must be set using the flag values listed below. + * Notice that on read it is set by libpng however the values stored have + * more bits set than are listed below. Always treat the value as a + * bitmask. On write set only one bit - setting multiple bits may cause the + * chunk to be written in multiple places. + */ + png_byte location; /* mode of operation at read time */ +} +png_unknown_chunk; + +typedef png_unknown_chunk * png_unknown_chunkp; +typedef const png_unknown_chunk * png_const_unknown_chunkp; +typedef png_unknown_chunk * * png_unknown_chunkpp; +#endif + +/* Flag values for the unknown chunk location byte. */ +#define PNG_HAVE_IHDR 0x01 +#define PNG_HAVE_PLTE 0x02 +#define PNG_AFTER_IDAT 0x08 + +/* Maximum positive integer used in PNG is (2^31)-1 */ +#define PNG_UINT_31_MAX ((png_uint_32)0x7fffffffL) +#define PNG_UINT_32_MAX ((png_uint_32)(-1)) +#define PNG_SIZE_MAX ((png_size_t)(-1)) + +/* These are constants for fixed point values encoded in the + * PNG specification manner (x100000) + */ +#define PNG_FP_1 100000 +#define PNG_FP_HALF 50000 +#define PNG_FP_MAX ((png_fixed_point)0x7fffffffL) +#define PNG_FP_MIN (-PNG_FP_MAX) + +/* These describe the color_type field in png_info. */ +/* color type masks */ +#define PNG_COLOR_MASK_PALETTE 1 +#define PNG_COLOR_MASK_COLOR 2 +#define PNG_COLOR_MASK_ALPHA 4 + +/* color types. Note that not all combinations are legal */ +#define PNG_COLOR_TYPE_GRAY 0 +#define PNG_COLOR_TYPE_PALETTE (PNG_COLOR_MASK_COLOR | PNG_COLOR_MASK_PALETTE) +#define PNG_COLOR_TYPE_RGB (PNG_COLOR_MASK_COLOR) +#define PNG_COLOR_TYPE_RGB_ALPHA (PNG_COLOR_MASK_COLOR | PNG_COLOR_MASK_ALPHA) +#define PNG_COLOR_TYPE_GRAY_ALPHA (PNG_COLOR_MASK_ALPHA) +/* aliases */ +#define PNG_COLOR_TYPE_RGBA PNG_COLOR_TYPE_RGB_ALPHA +#define PNG_COLOR_TYPE_GA PNG_COLOR_TYPE_GRAY_ALPHA + +/* This is for compression type. PNG 1.0-1.2 only define the single type. */ +#define PNG_COMPRESSION_TYPE_BASE 0 /* Deflate method 8, 32K window */ +#define PNG_COMPRESSION_TYPE_DEFAULT PNG_COMPRESSION_TYPE_BASE + +/* This is for filter type. PNG 1.0-1.2 only define the single type. */ +#define PNG_FILTER_TYPE_BASE 0 /* Single row per-byte filtering */ +#define PNG_INTRAPIXEL_DIFFERENCING 64 /* Used only in MNG datastreams */ +#define PNG_FILTER_TYPE_DEFAULT PNG_FILTER_TYPE_BASE + +/* These are for the interlacing type. These values should NOT be changed. */ +#define PNG_INTERLACE_NONE 0 /* Non-interlaced image */ +#define PNG_INTERLACE_ADAM7 1 /* Adam7 interlacing */ +#define PNG_INTERLACE_LAST 2 /* Not a valid value */ + +/* These are for the oFFs chunk. These values should NOT be changed. */ +#define PNG_OFFSET_PIXEL 0 /* Offset in pixels */ +#define PNG_OFFSET_MICROMETER 1 /* Offset in micrometers (1/10^6 meter) */ +#define PNG_OFFSET_LAST 2 /* Not a valid value */ + +/* These are for the pCAL chunk. These values should NOT be changed. */ +#define PNG_EQUATION_LINEAR 0 /* Linear transformation */ +#define PNG_EQUATION_BASE_E 1 /* Exponential base e transform */ +#define PNG_EQUATION_ARBITRARY 2 /* Arbitrary base exponential transform */ +#define PNG_EQUATION_HYPERBOLIC 3 /* Hyperbolic sine transformation */ +#define PNG_EQUATION_LAST 4 /* Not a valid value */ + +/* These are for the sCAL chunk. These values should NOT be changed. */ +#define PNG_SCALE_UNKNOWN 0 /* unknown unit (image scale) */ +#define PNG_SCALE_METER 1 /* meters per pixel */ +#define PNG_SCALE_RADIAN 2 /* radians per pixel */ +#define PNG_SCALE_LAST 3 /* Not a valid value */ + +/* These are for the pHYs chunk. These values should NOT be changed. */ +#define PNG_RESOLUTION_UNKNOWN 0 /* pixels/unknown unit (aspect ratio) */ +#define PNG_RESOLUTION_METER 1 /* pixels/meter */ +#define PNG_RESOLUTION_LAST 2 /* Not a valid value */ + +/* These are for the sRGB chunk. These values should NOT be changed. */ +#define PNG_sRGB_INTENT_PERCEPTUAL 0 +#define PNG_sRGB_INTENT_RELATIVE 1 +#define PNG_sRGB_INTENT_SATURATION 2 +#define PNG_sRGB_INTENT_ABSOLUTE 3 +#define PNG_sRGB_INTENT_LAST 4 /* Not a valid value */ + +/* This is for text chunks */ +#define PNG_KEYWORD_MAX_LENGTH 79 + +/* Maximum number of entries in PLTE/sPLT/tRNS arrays */ +#define PNG_MAX_PALETTE_LENGTH 256 + +/* These determine if an ancillary chunk's data has been successfully read + * from the PNG header, or if the application has filled in the corresponding + * data in the info_struct to be written into the output file. The values + * of the PNG_INFO_ defines should NOT be changed. + */ +#define PNG_INFO_gAMA 0x0001 +#define PNG_INFO_sBIT 0x0002 +#define PNG_INFO_cHRM 0x0004 +#define PNG_INFO_PLTE 0x0008 +#define PNG_INFO_tRNS 0x0010 +#define PNG_INFO_bKGD 0x0020 +#define PNG_INFO_hIST 0x0040 +#define PNG_INFO_pHYs 0x0080 +#define PNG_INFO_oFFs 0x0100 +#define PNG_INFO_tIME 0x0200 +#define PNG_INFO_pCAL 0x0400 +#define PNG_INFO_sRGB 0x0800 /* GR-P, 0.96a */ +#define PNG_INFO_iCCP 0x1000 /* ESR, 1.0.6 */ +#define PNG_INFO_sPLT 0x2000 /* ESR, 1.0.6 */ +#define PNG_INFO_sCAL 0x4000 /* ESR, 1.0.6 */ +#define PNG_INFO_IDAT 0x8000 /* ESR, 1.0.6 */ + +/* This is used for the transformation routines, as some of them + * change these values for the row. It also should enable using + * the routines for other purposes. + */ +typedef struct png_row_info_struct +{ + png_uint_32 width; /* width of row */ + png_size_t rowbytes; /* number of bytes in row */ + png_byte color_type; /* color type of row */ + png_byte bit_depth; /* bit depth of row */ + png_byte channels; /* number of channels (1, 2, 3, or 4) */ + png_byte pixel_depth; /* bits per pixel (depth * channels) */ +} png_row_info; + +typedef png_row_info * png_row_infop; +typedef png_row_info * * png_row_infopp; + +/* These are the function types for the I/O functions and for the functions + * that allow the user to override the default I/O functions with his or her + * own. The png_error_ptr type should match that of user-supplied warning + * and error functions, while the png_rw_ptr type should match that of the + * user read/write data functions. Note that the 'write' function must not + * modify the buffer it is passed. The 'read' function, on the other hand, is + * expected to return the read data in the buffer. + */ +typedef PNG_CALLBACK(void, *png_error_ptr, (png_structp, png_const_charp)); +typedef PNG_CALLBACK(void, *png_rw_ptr, (png_structp, png_bytep, png_size_t)); +typedef PNG_CALLBACK(void, *png_flush_ptr, (png_structp)); +typedef PNG_CALLBACK(void, *png_read_status_ptr, (png_structp, png_uint_32, + int)); +typedef PNG_CALLBACK(void, *png_write_status_ptr, (png_structp, png_uint_32, + int)); + +#ifdef PNG_PROGRESSIVE_READ_SUPPORTED +typedef PNG_CALLBACK(void, *png_progressive_info_ptr, (png_structp, png_infop)); +typedef PNG_CALLBACK(void, *png_progressive_end_ptr, (png_structp, png_infop)); + +/* The following callback receives png_uint_32 row_number, int pass for the + * png_bytep data of the row. When transforming an interlaced image the + * row number is the row number within the sub-image of the interlace pass, so + * the value will increase to the height of the sub-image (not the full image) + * then reset to 0 for the next pass. + * + * Use PNG_ROW_FROM_PASS_ROW(row, pass) and PNG_COL_FROM_PASS_COL(col, pass) to + * find the output pixel (x,y) given an interlaced sub-image pixel + * (row,col,pass). (See below for these macros.) + */ +typedef PNG_CALLBACK(void, *png_progressive_row_ptr, (png_structp, png_bytep, + png_uint_32, int)); +#endif + +#if defined(PNG_READ_USER_TRANSFORM_SUPPORTED) || \ + defined(PNG_WRITE_USER_TRANSFORM_SUPPORTED) +typedef PNG_CALLBACK(void, *png_user_transform_ptr, (png_structp, png_row_infop, + png_bytep)); +#endif + +#ifdef PNG_USER_CHUNKS_SUPPORTED +typedef PNG_CALLBACK(int, *png_user_chunk_ptr, (png_structp, + png_unknown_chunkp)); +#endif +#ifdef PNG_UNKNOWN_CHUNKS_SUPPORTED +/* not used anywhere */ +/* typedef PNG_CALLBACK(void, *png_unknown_chunk_ptr, (png_structp)); */ +#endif + +#ifdef PNG_SETJMP_SUPPORTED +/* This must match the function definition in , and the application + * must include this before png.h to obtain the definition of jmp_buf. The + * function is required to be PNG_NORETURN, but this is not checked. If the + * function does return the application will crash via an abort() or similar + * system level call. + * + * If you get a warning here while building the library you may need to make + * changes to ensure that pnglibconf.h records the calling convention used by + * your compiler. This may be very difficult - try using a different compiler + * to build the library! + */ +PNG_FUNCTION(void, (PNGCAPI *png_longjmp_ptr), PNGARG((jmp_buf, int)), typedef); +#endif + +/* Transform masks for the high-level interface */ +#define PNG_TRANSFORM_IDENTITY 0x0000 /* read and write */ +#define PNG_TRANSFORM_STRIP_16 0x0001 /* read only */ +#define PNG_TRANSFORM_STRIP_ALPHA 0x0002 /* read only */ +#define PNG_TRANSFORM_PACKING 0x0004 /* read and write */ +#define PNG_TRANSFORM_PACKSWAP 0x0008 /* read and write */ +#define PNG_TRANSFORM_EXPAND 0x0010 /* read only */ +#define PNG_TRANSFORM_INVERT_MONO 0x0020 /* read and write */ +#define PNG_TRANSFORM_SHIFT 0x0040 /* read and write */ +#define PNG_TRANSFORM_BGR 0x0080 /* read and write */ +#define PNG_TRANSFORM_SWAP_ALPHA 0x0100 /* read and write */ +#define PNG_TRANSFORM_SWAP_ENDIAN 0x0200 /* read and write */ +#define PNG_TRANSFORM_INVERT_ALPHA 0x0400 /* read and write */ +#define PNG_TRANSFORM_STRIP_FILLER 0x0800 /* write only */ +/* Added to libpng-1.2.34 */ +#define PNG_TRANSFORM_STRIP_FILLER_BEFORE PNG_TRANSFORM_STRIP_FILLER +#define PNG_TRANSFORM_STRIP_FILLER_AFTER 0x1000 /* write only */ +/* Added to libpng-1.4.0 */ +#define PNG_TRANSFORM_GRAY_TO_RGB 0x2000 /* read only */ +/* Added to libpng-1.5.4 */ +#define PNG_TRANSFORM_EXPAND_16 0x4000 /* read only */ +#define PNG_TRANSFORM_SCALE_16 0x8000 /* read only */ + +/* Flags for MNG supported features */ +#define PNG_FLAG_MNG_EMPTY_PLTE 0x01 +#define PNG_FLAG_MNG_FILTER_64 0x04 +#define PNG_ALL_MNG_FEATURES 0x05 + +/* NOTE: prior to 1.5 these functions had no 'API' style declaration, + * this allowed the zlib default functions to be used on Windows + * platforms. In 1.5 the zlib default malloc (which just calls malloc and + * ignores the first argument) should be completely compatible with the + * following. + */ +typedef PNG_CALLBACK(png_voidp, *png_malloc_ptr, (png_structp, + png_alloc_size_t)); +typedef PNG_CALLBACK(void, *png_free_ptr, (png_structp, png_voidp)); + +/* Section 3: exported functions + * Here are the function definitions most commonly used. This is not + * the place to find out how to use libpng. See libpng-manual.txt for the + * full explanation, see example.c for the summary. This just provides + * a simple one line description of the use of each function. + * + * The PNG_EXPORT() and PNG_EXPORTA() macros used below are defined in + * pngconf.h and in the *.dfn files in the scripts directory. + * + * PNG_EXPORT(ordinal, type, name, (args)); + * + * ordinal: ordinal that is used while building + * *.def files. The ordinal value is only + * relevant when preprocessing png.h with + * the *.dfn files for building symbol table + * entries, and are removed by pngconf.h. + * type: return type of the function + * name: function name + * args: function arguments, with types + * + * When we wish to append attributes to a function prototype we use + * the PNG_EXPORTA() macro instead. + * + * PNG_EXPORTA(ordinal, type, name, (args), attributes); + * + * ordinal, type, name, and args: same as in PNG_EXPORT(). + * attributes: function attributes + */ + +/* Returns the version number of the library */ +PNG_EXPORT(1, png_uint_32, png_access_version_number, (void)); + +/* Tell lib we have already handled the first magic bytes. + * Handling more than 8 bytes from the beginning of the file is an error. + */ +PNG_EXPORT(2, void, png_set_sig_bytes, (png_structrp png_ptr, int num_bytes)); + +/* Check sig[start] through sig[start + num_to_check - 1] to see if it's a + * PNG file. Returns zero if the supplied bytes match the 8-byte PNG + * signature, and non-zero otherwise. Having num_to_check == 0 or + * start > 7 will always fail (ie return non-zero). + */ +PNG_EXPORT(3, int, png_sig_cmp, (png_const_bytep sig, png_size_t start, + png_size_t num_to_check)); + +/* Simple signature checking function. This is the same as calling + * png_check_sig(sig, n) := !png_sig_cmp(sig, 0, n). + */ +#define png_check_sig(sig, n) !png_sig_cmp((sig), 0, (n)) + +/* Allocate and initialize png_ptr struct for reading, and any other memory. */ +PNG_EXPORTA(4, png_structp, png_create_read_struct, + (png_const_charp user_png_ver, png_voidp error_ptr, + png_error_ptr error_fn, png_error_ptr warn_fn), + PNG_ALLOCATED); + +/* Allocate and initialize png_ptr struct for writing, and any other memory */ +PNG_EXPORTA(5, png_structp, png_create_write_struct, + (png_const_charp user_png_ver, png_voidp error_ptr, png_error_ptr error_fn, + png_error_ptr warn_fn), + PNG_ALLOCATED); + +PNG_EXPORT(6, png_size_t, png_get_compression_buffer_size, + (png_const_structrp png_ptr)); + +PNG_EXPORT(7, void, png_set_compression_buffer_size, (png_structrp png_ptr, + png_size_t size)); + +/* Moved from pngconf.h in 1.4.0 and modified to ensure setjmp/longjmp + * match up. + */ +#ifdef PNG_SETJMP_SUPPORTED +/* This function returns the jmp_buf built in to *png_ptr. It must be + * supplied with an appropriate 'longjmp' function to use on that jmp_buf + * unless the default error function is overridden in which case NULL is + * acceptable. The size of the jmp_buf is checked against the actual size + * allocated by the library - the call will return NULL on a mismatch + * indicating an ABI mismatch. + */ +PNG_EXPORT(8, jmp_buf*, png_set_longjmp_fn, (png_structrp png_ptr, + png_longjmp_ptr longjmp_fn, size_t jmp_buf_size)); +# define png_jmpbuf(png_ptr) \ + (*png_set_longjmp_fn((png_ptr), longjmp, (sizeof (jmp_buf)))) +#else +# define png_jmpbuf(png_ptr) \ + (LIBPNG_WAS_COMPILED_WITH__PNG_NO_SETJMP) +#endif +/* This function should be used by libpng applications in place of + * longjmp(png_ptr->jmpbuf, val). If longjmp_fn() has been set, it + * will use it; otherwise it will call PNG_ABORT(). This function was + * added in libpng-1.5.0. + */ +PNG_EXPORTA(9, void, png_longjmp, (png_const_structrp png_ptr, int val), + PNG_NORETURN); + +#ifdef PNG_READ_SUPPORTED +/* Reset the compression stream */ +PNG_EXPORTA(10, int, png_reset_zstream, (png_structrp png_ptr), PNG_DEPRECATED); +#endif + +/* New functions added in libpng-1.0.2 (not enabled by default until 1.2.0) */ +#ifdef PNG_USER_MEM_SUPPORTED +PNG_EXPORTA(11, png_structp, png_create_read_struct_2, + (png_const_charp user_png_ver, png_voidp error_ptr, png_error_ptr error_fn, + png_error_ptr warn_fn, + png_voidp mem_ptr, png_malloc_ptr malloc_fn, png_free_ptr free_fn), + PNG_ALLOCATED); +PNG_EXPORTA(12, png_structp, png_create_write_struct_2, + (png_const_charp user_png_ver, png_voidp error_ptr, png_error_ptr error_fn, + png_error_ptr warn_fn, + png_voidp mem_ptr, png_malloc_ptr malloc_fn, png_free_ptr free_fn), + PNG_ALLOCATED); +#endif + +/* Write the PNG file signature. */ +PNG_EXPORT(13, void, png_write_sig, (png_structrp png_ptr)); + +/* Write a PNG chunk - size, type, (optional) data, CRC. */ +PNG_EXPORT(14, void, png_write_chunk, (png_structrp png_ptr, png_const_bytep + chunk_name, png_const_bytep data, png_size_t length)); + +/* Write the start of a PNG chunk - length and chunk name. */ +PNG_EXPORT(15, void, png_write_chunk_start, (png_structrp png_ptr, + png_const_bytep chunk_name, png_uint_32 length)); + +/* Write the data of a PNG chunk started with png_write_chunk_start(). */ +PNG_EXPORT(16, void, png_write_chunk_data, (png_structrp png_ptr, + png_const_bytep data, png_size_t length)); + +/* Finish a chunk started with png_write_chunk_start() (includes CRC). */ +PNG_EXPORT(17, void, png_write_chunk_end, (png_structrp png_ptr)); + +/* Allocate and initialize the info structure */ +PNG_EXPORTA(18, png_infop, png_create_info_struct, (png_const_structrp png_ptr), + PNG_ALLOCATED); + +/* DEPRECATED: this function allowed init structures to be created using the + * default allocation method (typically malloc). Use is deprecated in 1.6.0 and + * the API will be removed in the future. + */ +PNG_EXPORTA(19, void, png_info_init_3, (png_infopp info_ptr, + png_size_t png_info_struct_size), PNG_DEPRECATED); + +/* Writes all the PNG information before the image. */ +PNG_EXPORT(20, void, png_write_info_before_PLTE, + (png_structrp png_ptr, png_const_inforp info_ptr)); +PNG_EXPORT(21, void, png_write_info, + (png_structrp png_ptr, png_const_inforp info_ptr)); + +#ifdef PNG_SEQUENTIAL_READ_SUPPORTED +/* Read the information before the actual image data. */ +PNG_EXPORT(22, void, png_read_info, + (png_structrp png_ptr, png_inforp info_ptr)); +#endif + +#ifdef PNG_TIME_RFC1123_SUPPORTED + /* Convert to a US string format: there is no localization support in this + * routine. The original implementation used a 29 character buffer in + * png_struct, this will be removed in future versions. + */ +#if PNG_LIBPNG_VER < 10700 +/* To do: remove this from libpng17 (and from libpng17/png.c and pngstruct.h) */ +PNG_EXPORTA(23, png_const_charp, png_convert_to_rfc1123, (png_structrp png_ptr, + png_const_timep ptime),PNG_DEPRECATED); +#endif +PNG_EXPORT(241, int, png_convert_to_rfc1123_buffer, (char out[29], + png_const_timep ptime)); +#endif + +#ifdef PNG_CONVERT_tIME_SUPPORTED +/* Convert from a struct tm to png_time */ +PNG_EXPORT(24, void, png_convert_from_struct_tm, (png_timep ptime, + const struct tm * ttime)); + +/* Convert from time_t to png_time. Uses gmtime() */ +PNG_EXPORT(25, void, png_convert_from_time_t, (png_timep ptime, time_t ttime)); +#endif /* PNG_CONVERT_tIME_SUPPORTED */ + +#ifdef PNG_READ_EXPAND_SUPPORTED +/* Expand data to 24-bit RGB, or 8-bit grayscale, with alpha if available. */ +PNG_EXPORT(26, void, png_set_expand, (png_structrp png_ptr)); +PNG_EXPORT(27, void, png_set_expand_gray_1_2_4_to_8, (png_structrp png_ptr)); +PNG_EXPORT(28, void, png_set_palette_to_rgb, (png_structrp png_ptr)); +PNG_EXPORT(29, void, png_set_tRNS_to_alpha, (png_structrp png_ptr)); +#endif + +#ifdef PNG_READ_EXPAND_16_SUPPORTED +/* Expand to 16-bit channels, forces conversion of palette to RGB and expansion + * of a tRNS chunk if present. + */ +PNG_EXPORT(221, void, png_set_expand_16, (png_structrp png_ptr)); +#endif + +#if defined(PNG_READ_BGR_SUPPORTED) || defined(PNG_WRITE_BGR_SUPPORTED) +/* Use blue, green, red order for pixels. */ +PNG_EXPORT(30, void, png_set_bgr, (png_structrp png_ptr)); +#endif + +#ifdef PNG_READ_GRAY_TO_RGB_SUPPORTED +/* Expand the grayscale to 24-bit RGB if necessary. */ +PNG_EXPORT(31, void, png_set_gray_to_rgb, (png_structrp png_ptr)); +#endif + +#ifdef PNG_READ_RGB_TO_GRAY_SUPPORTED +/* Reduce RGB to grayscale. */ +#define PNG_ERROR_ACTION_NONE 1 +#define PNG_ERROR_ACTION_WARN 2 +#define PNG_ERROR_ACTION_ERROR 3 +#define PNG_RGB_TO_GRAY_DEFAULT (-1)/*for red/green coefficients*/ + +PNG_FP_EXPORT(32, void, png_set_rgb_to_gray, (png_structrp png_ptr, + int error_action, double red, double green)) +PNG_FIXED_EXPORT(33, void, png_set_rgb_to_gray_fixed, (png_structrp png_ptr, + int error_action, png_fixed_point red, png_fixed_point green)) + +PNG_EXPORT(34, png_byte, png_get_rgb_to_gray_status, (png_const_structrp + png_ptr)); +#endif + +#ifdef PNG_BUILD_GRAYSCALE_PALETTE_SUPPORTED +PNG_EXPORT(35, void, png_build_grayscale_palette, (int bit_depth, + png_colorp palette)); +#endif + +#ifdef PNG_READ_ALPHA_MODE_SUPPORTED +/* How the alpha channel is interpreted - this affects how the color channels + * of a PNG file are returned to the calling application when an alpha channel, + * or a tRNS chunk in a palette file, is present. + * + * This has no effect on the way pixels are written into a PNG output + * datastream. The color samples in a PNG datastream are never premultiplied + * with the alpha samples. + * + * The default is to return data according to the PNG specification: the alpha + * channel is a linear measure of the contribution of the pixel to the + * corresponding composited pixel, and the color channels are unassociated + * (not premultiplied). The gamma encoded color channels must be scaled + * according to the contribution and to do this it is necessary to undo + * the encoding, scale the color values, perform the composition and reencode + * the values. This is the 'PNG' mode. + * + * The alternative is to 'associate' the alpha with the color information by + * storing color channel values that have been scaled by the alpha. + * image. These are the 'STANDARD', 'ASSOCIATED' or 'PREMULTIPLIED' modes + * (the latter being the two common names for associated alpha color channels). + * + * For the 'OPTIMIZED' mode, a pixel is treated as opaque only if the alpha + * value is equal to the maximum value. + * + * The final choice is to gamma encode the alpha channel as well. This is + * broken because, in practice, no implementation that uses this choice + * correctly undoes the encoding before handling alpha composition. Use this + * choice only if other serious errors in the software or hardware you use + * mandate it; the typical serious error is for dark halos to appear around + * opaque areas of the composited PNG image because of arithmetic overflow. + * + * The API function png_set_alpha_mode specifies which of these choices to use + * with an enumerated 'mode' value and the gamma of the required output: + */ +#define PNG_ALPHA_PNG 0 /* according to the PNG standard */ +#define PNG_ALPHA_STANDARD 1 /* according to Porter/Duff */ +#define PNG_ALPHA_ASSOCIATED 1 /* as above; this is the normal practice */ +#define PNG_ALPHA_PREMULTIPLIED 1 /* as above */ +#define PNG_ALPHA_OPTIMIZED 2 /* 'PNG' for opaque pixels, else 'STANDARD' */ +#define PNG_ALPHA_BROKEN 3 /* the alpha channel is gamma encoded */ + +PNG_FP_EXPORT(227, void, png_set_alpha_mode, (png_structrp png_ptr, int mode, + double output_gamma)) +PNG_FIXED_EXPORT(228, void, png_set_alpha_mode_fixed, (png_structrp png_ptr, + int mode, png_fixed_point output_gamma)) +#endif + +#if defined(PNG_GAMMA_SUPPORTED) || defined(PNG_READ_ALPHA_MODE_SUPPORTED) +/* The output_gamma value is a screen gamma in libpng terminology: it expresses + * how to decode the output values, not how they are encoded. + */ +#define PNG_DEFAULT_sRGB -1 /* sRGB gamma and color space */ +#define PNG_GAMMA_MAC_18 -2 /* Old Mac '1.8' gamma and color space */ +#define PNG_GAMMA_sRGB 220000 /* Television standards--matches sRGB gamma */ +#define PNG_GAMMA_LINEAR PNG_FP_1 /* Linear */ +#endif + +/* The following are examples of calls to png_set_alpha_mode to achieve the + * required overall gamma correction and, where necessary, alpha + * premultiplication. + * + * png_set_alpha_mode(pp, PNG_ALPHA_PNG, PNG_DEFAULT_sRGB); + * This is the default libpng handling of the alpha channel - it is not + * pre-multiplied into the color components. In addition the call states + * that the output is for a sRGB system and causes all PNG files without gAMA + * chunks to be assumed to be encoded using sRGB. + * + * png_set_alpha_mode(pp, PNG_ALPHA_PNG, PNG_GAMMA_MAC); + * In this case the output is assumed to be something like an sRGB conformant + * display preceeded by a power-law lookup table of power 1.45. This is how + * early Mac systems behaved. + * + * png_set_alpha_mode(pp, PNG_ALPHA_STANDARD, PNG_GAMMA_LINEAR); + * This is the classic Jim Blinn approach and will work in academic + * environments where everything is done by the book. It has the shortcoming + * of assuming that input PNG data with no gamma information is linear - this + * is unlikely to be correct unless the PNG files where generated locally. + * Most of the time the output precision will be so low as to show + * significant banding in dark areas of the image. + * + * png_set_expand_16(pp); + * png_set_alpha_mode(pp, PNG_ALPHA_STANDARD, PNG_DEFAULT_sRGB); + * This is a somewhat more realistic Jim Blinn inspired approach. PNG files + * are assumed to have the sRGB encoding if not marked with a gamma value and + * the output is always 16 bits per component. This permits accurate scaling + * and processing of the data. If you know that your input PNG files were + * generated locally you might need to replace PNG_DEFAULT_sRGB with the + * correct value for your system. + * + * png_set_alpha_mode(pp, PNG_ALPHA_OPTIMIZED, PNG_DEFAULT_sRGB); + * If you just need to composite the PNG image onto an existing background + * and if you control the code that does this you can use the optimization + * setting. In this case you just copy completely opaque pixels to the + * output. For pixels that are not completely transparent (you just skip + * those) you do the composition math using png_composite or png_composite_16 + * below then encode the resultant 8-bit or 16-bit values to match the output + * encoding. + * + * Other cases + * If neither the PNG nor the standard linear encoding work for you because + * of the software or hardware you use then you have a big problem. The PNG + * case will probably result in halos around the image. The linear encoding + * will probably result in a washed out, too bright, image (it's actually too + * contrasty.) Try the ALPHA_OPTIMIZED mode above - this will probably + * substantially reduce the halos. Alternatively try: + * + * png_set_alpha_mode(pp, PNG_ALPHA_BROKEN, PNG_DEFAULT_sRGB); + * This option will also reduce the halos, but there will be slight dark + * halos round the opaque parts of the image where the background is light. + * In the OPTIMIZED mode the halos will be light halos where the background + * is dark. Take your pick - the halos are unavoidable unless you can get + * your hardware/software fixed! (The OPTIMIZED approach is slightly + * faster.) + * + * When the default gamma of PNG files doesn't match the output gamma. + * If you have PNG files with no gamma information png_set_alpha_mode allows + * you to provide a default gamma, but it also sets the ouput gamma to the + * matching value. If you know your PNG files have a gamma that doesn't + * match the output you can take advantage of the fact that + * png_set_alpha_mode always sets the output gamma but only sets the PNG + * default if it is not already set: + * + * png_set_alpha_mode(pp, PNG_ALPHA_PNG, PNG_DEFAULT_sRGB); + * png_set_alpha_mode(pp, PNG_ALPHA_PNG, PNG_GAMMA_MAC); + * The first call sets both the default and the output gamma values, the + * second call overrides the output gamma without changing the default. This + * is easier than achieving the same effect with png_set_gamma. You must use + * PNG_ALPHA_PNG for the first call - internal checking in png_set_alpha will + * fire if more than one call to png_set_alpha_mode and png_set_background is + * made in the same read operation, however multiple calls with PNG_ALPHA_PNG + * are ignored. + */ + +#ifdef PNG_READ_STRIP_ALPHA_SUPPORTED +PNG_EXPORT(36, void, png_set_strip_alpha, (png_structrp png_ptr)); +#endif + +#if defined(PNG_READ_SWAP_ALPHA_SUPPORTED) || \ + defined(PNG_WRITE_SWAP_ALPHA_SUPPORTED) +PNG_EXPORT(37, void, png_set_swap_alpha, (png_structrp png_ptr)); +#endif + +#if defined(PNG_READ_INVERT_ALPHA_SUPPORTED) || \ + defined(PNG_WRITE_INVERT_ALPHA_SUPPORTED) +PNG_EXPORT(38, void, png_set_invert_alpha, (png_structrp png_ptr)); +#endif + +#if defined(PNG_READ_FILLER_SUPPORTED) || defined(PNG_WRITE_FILLER_SUPPORTED) +/* Add a filler byte to 8-bit Gray or 24-bit RGB images. */ +PNG_EXPORT(39, void, png_set_filler, (png_structrp png_ptr, png_uint_32 filler, + int flags)); +/* The values of the PNG_FILLER_ defines should NOT be changed */ +# define PNG_FILLER_BEFORE 0 +# define PNG_FILLER_AFTER 1 +/* Add an alpha byte to 8-bit Gray or 24-bit RGB images. */ +PNG_EXPORT(40, void, png_set_add_alpha, (png_structrp png_ptr, + png_uint_32 filler, int flags)); +#endif /* PNG_READ_FILLER_SUPPORTED || PNG_WRITE_FILLER_SUPPORTED */ + +#if defined(PNG_READ_SWAP_SUPPORTED) || defined(PNG_WRITE_SWAP_SUPPORTED) +/* Swap bytes in 16-bit depth files. */ +PNG_EXPORT(41, void, png_set_swap, (png_structrp png_ptr)); +#endif + +#if defined(PNG_READ_PACK_SUPPORTED) || defined(PNG_WRITE_PACK_SUPPORTED) +/* Use 1 byte per pixel in 1, 2, or 4-bit depth files. */ +PNG_EXPORT(42, void, png_set_packing, (png_structrp png_ptr)); +#endif + +#if defined(PNG_READ_PACKSWAP_SUPPORTED) || \ + defined(PNG_WRITE_PACKSWAP_SUPPORTED) +/* Swap packing order of pixels in bytes. */ +PNG_EXPORT(43, void, png_set_packswap, (png_structrp png_ptr)); +#endif + +#if defined(PNG_READ_SHIFT_SUPPORTED) || defined(PNG_WRITE_SHIFT_SUPPORTED) +/* Converts files to legal bit depths. */ +PNG_EXPORT(44, void, png_set_shift, (png_structrp png_ptr, png_const_color_8p + true_bits)); +#endif + +#if defined(PNG_READ_INTERLACING_SUPPORTED) || \ + defined(PNG_WRITE_INTERLACING_SUPPORTED) +/* Have the code handle the interlacing. Returns the number of passes. + * MUST be called before png_read_update_info or png_start_read_image, + * otherwise it will not have the desired effect. Note that it is still + * necessary to call png_read_row or png_read_rows png_get_image_height + * times for each pass. +*/ +PNG_EXPORT(45, int, png_set_interlace_handling, (png_structrp png_ptr)); +#endif + +#if defined(PNG_READ_INVERT_SUPPORTED) || defined(PNG_WRITE_INVERT_SUPPORTED) +/* Invert monochrome files */ +PNG_EXPORT(46, void, png_set_invert_mono, (png_structrp png_ptr)); +#endif + +#ifdef PNG_READ_BACKGROUND_SUPPORTED +/* Handle alpha and tRNS by replacing with a background color. Prior to + * libpng-1.5.4 this API must not be called before the PNG file header has been + * read. Doing so will result in unexpected behavior and possible warnings or + * errors if the PNG file contains a bKGD chunk. + */ +PNG_FP_EXPORT(47, void, png_set_background, (png_structrp png_ptr, + png_const_color_16p background_color, int background_gamma_code, + int need_expand, double background_gamma)) +PNG_FIXED_EXPORT(215, void, png_set_background_fixed, (png_structrp png_ptr, + png_const_color_16p background_color, int background_gamma_code, + int need_expand, png_fixed_point background_gamma)) +#endif +#ifdef PNG_READ_BACKGROUND_SUPPORTED +# define PNG_BACKGROUND_GAMMA_UNKNOWN 0 +# define PNG_BACKGROUND_GAMMA_SCREEN 1 +# define PNG_BACKGROUND_GAMMA_FILE 2 +# define PNG_BACKGROUND_GAMMA_UNIQUE 3 +#endif + +#ifdef PNG_READ_SCALE_16_TO_8_SUPPORTED +/* Scale a 16-bit depth file down to 8-bit, accurately. */ +PNG_EXPORT(229, void, png_set_scale_16, (png_structrp png_ptr)); +#endif + +#ifdef PNG_READ_STRIP_16_TO_8_SUPPORTED +#define PNG_READ_16_TO_8 SUPPORTED /* Name prior to 1.5.4 */ +/* Strip the second byte of information from a 16-bit depth file. */ +PNG_EXPORT(48, void, png_set_strip_16, (png_structrp png_ptr)); +#endif + +#ifdef PNG_READ_QUANTIZE_SUPPORTED +/* Turn on quantizing, and reduce the palette to the number of colors + * available. + */ +PNG_EXPORT(49, void, png_set_quantize, (png_structrp png_ptr, + png_colorp palette, int num_palette, int maximum_colors, + png_const_uint_16p histogram, int full_quantize)); +#endif + +#ifdef PNG_READ_GAMMA_SUPPORTED +/* The threshold on gamma processing is configurable but hard-wired into the + * library. The following is the floating point variant. + */ +#define PNG_GAMMA_THRESHOLD (PNG_GAMMA_THRESHOLD_FIXED*.00001) + +/* Handle gamma correction. Screen_gamma=(display_exponent). + * NOTE: this API simply sets the screen and file gamma values. It will + * therefore override the value for gamma in a PNG file if it is called after + * the file header has been read - use with care - call before reading the PNG + * file for best results! + * + * These routines accept the same gamma values as png_set_alpha_mode (described + * above). The PNG_GAMMA_ defines and PNG_DEFAULT_sRGB can be passed to either + * API (floating point or fixed.) Notice, however, that the 'file_gamma' value + * is the inverse of a 'screen gamma' value. + */ +PNG_FP_EXPORT(50, void, png_set_gamma, (png_structrp png_ptr, + double screen_gamma, double override_file_gamma)) +PNG_FIXED_EXPORT(208, void, png_set_gamma_fixed, (png_structrp png_ptr, + png_fixed_point screen_gamma, png_fixed_point override_file_gamma)) +#endif + +#ifdef PNG_WRITE_FLUSH_SUPPORTED +/* Set how many lines between output flushes - 0 for no flushing */ +PNG_EXPORT(51, void, png_set_flush, (png_structrp png_ptr, int nrows)); +/* Flush the current PNG output buffer */ +PNG_EXPORT(52, void, png_write_flush, (png_structrp png_ptr)); +#endif + +/* Optional update palette with requested transformations */ +PNG_EXPORT(53, void, png_start_read_image, (png_structrp png_ptr)); + +/* Optional call to update the users info structure */ +PNG_EXPORT(54, void, png_read_update_info, (png_structrp png_ptr, + png_inforp info_ptr)); + +#ifdef PNG_SEQUENTIAL_READ_SUPPORTED +/* Read one or more rows of image data. */ +PNG_EXPORT(55, void, png_read_rows, (png_structrp png_ptr, png_bytepp row, + png_bytepp display_row, png_uint_32 num_rows)); +#endif + +#ifdef PNG_SEQUENTIAL_READ_SUPPORTED +/* Read a row of data. */ +PNG_EXPORT(56, void, png_read_row, (png_structrp png_ptr, png_bytep row, + png_bytep display_row)); +#endif + +#ifdef PNG_SEQUENTIAL_READ_SUPPORTED +/* Read the whole image into memory at once. */ +PNG_EXPORT(57, void, png_read_image, (png_structrp png_ptr, png_bytepp image)); +#endif + +/* Write a row of image data */ +PNG_EXPORT(58, void, png_write_row, (png_structrp png_ptr, + png_const_bytep row)); + +/* Write a few rows of image data: (*row) is not written; however, the type + * is declared as writeable to maintain compatibility with previous versions + * of libpng and to allow the 'display_row' array from read_rows to be passed + * unchanged to write_rows. + */ +PNG_EXPORT(59, void, png_write_rows, (png_structrp png_ptr, png_bytepp row, + png_uint_32 num_rows)); + +/* Write the image data */ +PNG_EXPORT(60, void, png_write_image, (png_structrp png_ptr, png_bytepp image)); + +/* Write the end of the PNG file. */ +PNG_EXPORT(61, void, png_write_end, (png_structrp png_ptr, + png_inforp info_ptr)); + +#ifdef PNG_SEQUENTIAL_READ_SUPPORTED +/* Read the end of the PNG file. */ +PNG_EXPORT(62, void, png_read_end, (png_structrp png_ptr, png_inforp info_ptr)); +#endif + +/* Free any memory associated with the png_info_struct */ +PNG_EXPORT(63, void, png_destroy_info_struct, (png_const_structrp png_ptr, + png_infopp info_ptr_ptr)); + +/* Free any memory associated with the png_struct and the png_info_structs */ +PNG_EXPORT(64, void, png_destroy_read_struct, (png_structpp png_ptr_ptr, + png_infopp info_ptr_ptr, png_infopp end_info_ptr_ptr)); + +/* Free any memory associated with the png_struct and the png_info_structs */ +PNG_EXPORT(65, void, png_destroy_write_struct, (png_structpp png_ptr_ptr, + png_infopp info_ptr_ptr)); + +/* Set the libpng method of handling chunk CRC errors */ +PNG_EXPORT(66, void, png_set_crc_action, (png_structrp png_ptr, int crit_action, + int ancil_action)); + +/* Values for png_set_crc_action() say how to handle CRC errors in + * ancillary and critical chunks, and whether to use the data contained + * therein. Note that it is impossible to "discard" data in a critical + * chunk. For versions prior to 0.90, the action was always error/quit, + * whereas in version 0.90 and later, the action for CRC errors in ancillary + * chunks is warn/discard. These values should NOT be changed. + * + * value action:critical action:ancillary + */ +#define PNG_CRC_DEFAULT 0 /* error/quit warn/discard data */ +#define PNG_CRC_ERROR_QUIT 1 /* error/quit error/quit */ +#define PNG_CRC_WARN_DISCARD 2 /* (INVALID) warn/discard data */ +#define PNG_CRC_WARN_USE 3 /* warn/use data warn/use data */ +#define PNG_CRC_QUIET_USE 4 /* quiet/use data quiet/use data */ +#define PNG_CRC_NO_CHANGE 5 /* use current value use current value */ + +/* These functions give the user control over the scan-line filtering in + * libpng and the compression methods used by zlib. These functions are + * mainly useful for testing, as the defaults should work with most users. + * Those users who are tight on memory or want faster performance at the + * expense of compression can modify them. See the compression library + * header file (zlib.h) for an explination of the compression functions. + */ + +/* Set the filtering method(s) used by libpng. Currently, the only valid + * value for "method" is 0. + */ +PNG_EXPORT(67, void, png_set_filter, (png_structrp png_ptr, int method, + int filters)); + +/* Flags for png_set_filter() to say which filters to use. The flags + * are chosen so that they don't conflict with real filter types + * below, in case they are supplied instead of the #defined constants. + * These values should NOT be changed. + */ +#define PNG_NO_FILTERS 0x00 +#define PNG_FILTER_NONE 0x08 +#define PNG_FILTER_SUB 0x10 +#define PNG_FILTER_UP 0x20 +#define PNG_FILTER_AVG 0x40 +#define PNG_FILTER_PAETH 0x80 +#define PNG_ALL_FILTERS (PNG_FILTER_NONE | PNG_FILTER_SUB | PNG_FILTER_UP | \ + PNG_FILTER_AVG | PNG_FILTER_PAETH) + +/* Filter values (not flags) - used in pngwrite.c, pngwutil.c for now. + * These defines should NOT be changed. + */ +#define PNG_FILTER_VALUE_NONE 0 +#define PNG_FILTER_VALUE_SUB 1 +#define PNG_FILTER_VALUE_UP 2 +#define PNG_FILTER_VALUE_AVG 3 +#define PNG_FILTER_VALUE_PAETH 4 +#define PNG_FILTER_VALUE_LAST 5 + +#ifdef PNG_WRITE_WEIGHTED_FILTER_SUPPORTED /* EXPERIMENTAL */ +/* The "heuristic_method" is given by one of the PNG_FILTER_HEURISTIC_ + * defines, either the default (minimum-sum-of-absolute-differences), or + * the experimental method (weighted-minimum-sum-of-absolute-differences). + * + * Weights are factors >= 1.0, indicating how important it is to keep the + * filter type consistent between rows. Larger numbers mean the current + * filter is that many times as likely to be the same as the "num_weights" + * previous filters. This is cumulative for each previous row with a weight. + * There needs to be "num_weights" values in "filter_weights", or it can be + * NULL if the weights aren't being specified. Weights have no influence on + * the selection of the first row filter. Well chosen weights can (in theory) + * improve the compression for a given image. + * + * Costs are factors >= 1.0 indicating the relative decoding costs of a + * filter type. Higher costs indicate more decoding expense, and are + * therefore less likely to be selected over a filter with lower computational + * costs. There needs to be a value in "filter_costs" for each valid filter + * type (given by PNG_FILTER_VALUE_LAST), or it can be NULL if you aren't + * setting the costs. Costs try to improve the speed of decompression without + * unduly increasing the compressed image size. + * + * A negative weight or cost indicates the default value is to be used, and + * values in the range [0.0, 1.0) indicate the value is to remain unchanged. + * The default values for both weights and costs are currently 1.0, but may + * change if good general weighting/cost heuristics can be found. If both + * the weights and costs are set to 1.0, this degenerates the WEIGHTED method + * to the UNWEIGHTED method, but with added encoding time/computation. + */ +PNG_FP_EXPORT(68, void, png_set_filter_heuristics, (png_structrp png_ptr, + int heuristic_method, int num_weights, png_const_doublep filter_weights, + png_const_doublep filter_costs)) +PNG_FIXED_EXPORT(209, void, png_set_filter_heuristics_fixed, + (png_structrp png_ptr, int heuristic_method, int num_weights, + png_const_fixed_point_p filter_weights, + png_const_fixed_point_p filter_costs)) +#endif /* PNG_WRITE_WEIGHTED_FILTER_SUPPORTED */ + +/* Heuristic used for row filter selection. These defines should NOT be + * changed. + */ +#define PNG_FILTER_HEURISTIC_DEFAULT 0 /* Currently "UNWEIGHTED" */ +#define PNG_FILTER_HEURISTIC_UNWEIGHTED 1 /* Used by libpng < 0.95 */ +#define PNG_FILTER_HEURISTIC_WEIGHTED 2 /* Experimental feature */ +#define PNG_FILTER_HEURISTIC_LAST 3 /* Not a valid value */ + +#ifdef PNG_WRITE_SUPPORTED +/* Set the library compression level. Currently, valid values range from + * 0 - 9, corresponding directly to the zlib compression levels 0 - 9 + * (0 - no compression, 9 - "maximal" compression). Note that tests have + * shown that zlib compression levels 3-6 usually perform as well as level 9 + * for PNG images, and do considerably fewer caclulations. In the future, + * these values may not correspond directly to the zlib compression levels. + */ +PNG_EXPORT(69, void, png_set_compression_level, (png_structrp png_ptr, + int level)); + +PNG_EXPORT(70, void, png_set_compression_mem_level, (png_structrp png_ptr, + int mem_level)); + +PNG_EXPORT(71, void, png_set_compression_strategy, (png_structrp png_ptr, + int strategy)); + +/* If PNG_WRITE_OPTIMIZE_CMF_SUPPORTED is defined, libpng will use a + * smaller value of window_bits if it can do so safely. + */ +PNG_EXPORT(72, void, png_set_compression_window_bits, (png_structrp png_ptr, + int window_bits)); + +PNG_EXPORT(73, void, png_set_compression_method, (png_structrp png_ptr, + int method)); +#endif + +#ifdef PNG_WRITE_CUSTOMIZE_ZTXT_COMPRESSION_SUPPORTED +/* Also set zlib parameters for compressing non-IDAT chunks */ +PNG_EXPORT(222, void, png_set_text_compression_level, (png_structrp png_ptr, + int level)); + +PNG_EXPORT(223, void, png_set_text_compression_mem_level, (png_structrp png_ptr, + int mem_level)); + +PNG_EXPORT(224, void, png_set_text_compression_strategy, (png_structrp png_ptr, + int strategy)); + +/* If PNG_WRITE_OPTIMIZE_CMF_SUPPORTED is defined, libpng will use a + * smaller value of window_bits if it can do so safely. + */ +PNG_EXPORT(225, void, png_set_text_compression_window_bits, + (png_structrp png_ptr, int window_bits)); + +PNG_EXPORT(226, void, png_set_text_compression_method, (png_structrp png_ptr, + int method)); +#endif /* PNG_WRITE_CUSTOMIZE_ZTXT_COMPRESSION_SUPPORTED */ + +/* These next functions are called for input/output, memory, and error + * handling. They are in the file pngrio.c, pngwio.c, and pngerror.c, + * and call standard C I/O routines such as fread(), fwrite(), and + * fprintf(). These functions can be made to use other I/O routines + * at run time for those applications that need to handle I/O in a + * different manner by calling png_set_???_fn(). See libpng-manual.txt for + * more information. + */ + +#ifdef PNG_STDIO_SUPPORTED +/* Initialize the input/output for the PNG file to the default functions. */ +PNG_EXPORT(74, void, png_init_io, (png_structrp png_ptr, png_FILE_p fp)); +#endif + +/* Replace the (error and abort), and warning functions with user + * supplied functions. If no messages are to be printed you must still + * write and use replacement functions. The replacement error_fn should + * still do a longjmp to the last setjmp location if you are using this + * method of error handling. If error_fn or warning_fn is NULL, the + * default function will be used. + */ + +PNG_EXPORT(75, void, png_set_error_fn, (png_structrp png_ptr, + png_voidp error_ptr, png_error_ptr error_fn, png_error_ptr warning_fn)); + +/* Return the user pointer associated with the error functions */ +PNG_EXPORT(76, png_voidp, png_get_error_ptr, (png_const_structrp png_ptr)); + +/* Replace the default data output functions with a user supplied one(s). + * If buffered output is not used, then output_flush_fn can be set to NULL. + * If PNG_WRITE_FLUSH_SUPPORTED is not defined at libpng compile time + * output_flush_fn will be ignored (and thus can be NULL). + * It is probably a mistake to use NULL for output_flush_fn if + * write_data_fn is not also NULL unless you have built libpng with + * PNG_WRITE_FLUSH_SUPPORTED undefined, because in this case libpng's + * default flush function, which uses the standard *FILE structure, will + * be used. + */ +PNG_EXPORT(77, void, png_set_write_fn, (png_structrp png_ptr, png_voidp io_ptr, + png_rw_ptr write_data_fn, png_flush_ptr output_flush_fn)); + +/* Replace the default data input function with a user supplied one. */ +PNG_EXPORT(78, void, png_set_read_fn, (png_structrp png_ptr, png_voidp io_ptr, + png_rw_ptr read_data_fn)); + +/* Return the user pointer associated with the I/O functions */ +PNG_EXPORT(79, png_voidp, png_get_io_ptr, (png_const_structrp png_ptr)); + +PNG_EXPORT(80, void, png_set_read_status_fn, (png_structrp png_ptr, + png_read_status_ptr read_row_fn)); + +PNG_EXPORT(81, void, png_set_write_status_fn, (png_structrp png_ptr, + png_write_status_ptr write_row_fn)); + +#ifdef PNG_USER_MEM_SUPPORTED +/* Replace the default memory allocation functions with user supplied one(s). */ +PNG_EXPORT(82, void, png_set_mem_fn, (png_structrp png_ptr, png_voidp mem_ptr, + png_malloc_ptr malloc_fn, png_free_ptr free_fn)); +/* Return the user pointer associated with the memory functions */ +PNG_EXPORT(83, png_voidp, png_get_mem_ptr, (png_const_structrp png_ptr)); +#endif + +#ifdef PNG_READ_USER_TRANSFORM_SUPPORTED +PNG_EXPORT(84, void, png_set_read_user_transform_fn, (png_structrp png_ptr, + png_user_transform_ptr read_user_transform_fn)); +#endif + +#ifdef PNG_WRITE_USER_TRANSFORM_SUPPORTED +PNG_EXPORT(85, void, png_set_write_user_transform_fn, (png_structrp png_ptr, + png_user_transform_ptr write_user_transform_fn)); +#endif + +#ifdef PNG_USER_TRANSFORM_PTR_SUPPORTED +PNG_EXPORT(86, void, png_set_user_transform_info, (png_structrp png_ptr, + png_voidp user_transform_ptr, int user_transform_depth, + int user_transform_channels)); +/* Return the user pointer associated with the user transform functions */ +PNG_EXPORT(87, png_voidp, png_get_user_transform_ptr, + (png_const_structrp png_ptr)); +#endif + +#ifdef PNG_USER_TRANSFORM_INFO_SUPPORTED +/* Return information about the row currently being processed. Note that these + * APIs do not fail but will return unexpected results if called outside a user + * transform callback. Also note that when transforming an interlaced image the + * row number is the row number within the sub-image of the interlace pass, so + * the value will increase to the height of the sub-image (not the full image) + * then reset to 0 for the next pass. + * + * Use PNG_ROW_FROM_PASS_ROW(row, pass) and PNG_COL_FROM_PASS_COL(col, pass) to + * find the output pixel (x,y) given an interlaced sub-image pixel + * (row,col,pass). (See below for these macros.) + */ +PNG_EXPORT(217, png_uint_32, png_get_current_row_number, (png_const_structrp)); +PNG_EXPORT(218, png_byte, png_get_current_pass_number, (png_const_structrp)); +#endif + +#ifdef PNG_READ_USER_CHUNKS_SUPPORTED +/* This callback is called only for *unknown* chunks. If + * PNG_HANDLE_AS_UNKNOWN_SUPPORTED is set then it is possible to set known + * chunks to be treated as unknown, however in this case the callback must do + * any processing required by the chunk (e.g. by calling the appropriate + * png_set_ APIs.) + * + * There is no write support - on write, by default, all the chunks in the + * 'unknown' list are written in the specified position. + * + * The integer return from the callback function is interpreted thus: + * + * negative: An error occured, png_chunk_error will be called. + * zero: The chunk was not handled, the chunk will be saved. A critical + * chunk will cause an error at this point unless it is to be saved. + * positive: The chunk was handled, libpng will ignore/discard it. + * + * See "INTERACTION WTIH USER CHUNK CALLBACKS" below for important notes about + * how this behavior will change in libpng 1.7 + */ +PNG_EXPORT(88, void, png_set_read_user_chunk_fn, (png_structrp png_ptr, + png_voidp user_chunk_ptr, png_user_chunk_ptr read_user_chunk_fn)); +#endif + +#ifdef PNG_USER_CHUNKS_SUPPORTED +PNG_EXPORT(89, png_voidp, png_get_user_chunk_ptr, (png_const_structrp png_ptr)); +#endif + +#ifdef PNG_PROGRESSIVE_READ_SUPPORTED +/* Sets the function callbacks for the push reader, and a pointer to a + * user-defined structure available to the callback functions. + */ +PNG_EXPORT(90, void, png_set_progressive_read_fn, (png_structrp png_ptr, + png_voidp progressive_ptr, png_progressive_info_ptr info_fn, + png_progressive_row_ptr row_fn, png_progressive_end_ptr end_fn)); + +/* Returns the user pointer associated with the push read functions */ +PNG_EXPORT(91, png_voidp, png_get_progressive_ptr, + (png_const_structrp png_ptr)); + +/* Function to be called when data becomes available */ +PNG_EXPORT(92, void, png_process_data, (png_structrp png_ptr, + png_inforp info_ptr, png_bytep buffer, png_size_t buffer_size)); + +/* A function which may be called *only* within png_process_data to stop the + * processing of any more data. The function returns the number of bytes + * remaining, excluding any that libpng has cached internally. A subsequent + * call to png_process_data must supply these bytes again. If the argument + * 'save' is set to true the routine will first save all the pending data and + * will always return 0. + */ +PNG_EXPORT(219, png_size_t, png_process_data_pause, (png_structrp, int save)); + +/* A function which may be called *only* outside (after) a call to + * png_process_data. It returns the number of bytes of data to skip in the + * input. Normally it will return 0, but if it returns a non-zero value the + * application must skip than number of bytes of input data and pass the + * following data to the next call to png_process_data. + */ +PNG_EXPORT(220, png_uint_32, png_process_data_skip, (png_structrp)); + +/* Function that combines rows. 'new_row' is a flag that should come from + * the callback and be non-NULL if anything needs to be done; the library + * stores its own version of the new data internally and ignores the passed + * in value. + */ +PNG_EXPORT(93, void, png_progressive_combine_row, (png_const_structrp png_ptr, + png_bytep old_row, png_const_bytep new_row)); +#endif /* PNG_PROGRESSIVE_READ_SUPPORTED */ + +PNG_EXPORTA(94, png_voidp, png_malloc, (png_const_structrp png_ptr, + png_alloc_size_t size), PNG_ALLOCATED); +/* Added at libpng version 1.4.0 */ +PNG_EXPORTA(95, png_voidp, png_calloc, (png_const_structrp png_ptr, + png_alloc_size_t size), PNG_ALLOCATED); + +/* Added at libpng version 1.2.4 */ +PNG_EXPORTA(96, png_voidp, png_malloc_warn, (png_const_structrp png_ptr, + png_alloc_size_t size), PNG_ALLOCATED); + +/* Frees a pointer allocated by png_malloc() */ +PNG_EXPORT(97, void, png_free, (png_const_structrp png_ptr, png_voidp ptr)); + +/* Free data that was allocated internally */ +PNG_EXPORT(98, void, png_free_data, (png_const_structrp png_ptr, + png_inforp info_ptr, png_uint_32 free_me, int num)); + +/* Reassign responsibility for freeing existing data, whether allocated + * by libpng or by the application; this works on the png_info structure passed + * in, it does not change the state for other png_info structures. + * + * It is unlikely that this function works correctly as of 1.6.0 and using it + * may result either in memory leaks or double free of allocated data. + */ +PNG_EXPORT(99, void, png_data_freer, (png_const_structrp png_ptr, + png_inforp info_ptr, int freer, png_uint_32 mask)); + +/* Assignments for png_data_freer */ +#define PNG_DESTROY_WILL_FREE_DATA 1 +#define PNG_SET_WILL_FREE_DATA 1 +#define PNG_USER_WILL_FREE_DATA 2 +/* Flags for png_ptr->free_me and info_ptr->free_me */ +#define PNG_FREE_HIST 0x0008 +#define PNG_FREE_ICCP 0x0010 +#define PNG_FREE_SPLT 0x0020 +#define PNG_FREE_ROWS 0x0040 +#define PNG_FREE_PCAL 0x0080 +#define PNG_FREE_SCAL 0x0100 +#ifdef PNG_STORE_UNKNOWN_CHUNKS_SUPPORTED +# define PNG_FREE_UNKN 0x0200 +#endif +/* PNG_FREE_LIST 0x0400 removed in 1.6.0 because it is ignored */ +#define PNG_FREE_PLTE 0x1000 +#define PNG_FREE_TRNS 0x2000 +#define PNG_FREE_TEXT 0x4000 +#define PNG_FREE_ALL 0x7fff +#define PNG_FREE_MUL 0x4220 /* PNG_FREE_SPLT|PNG_FREE_TEXT|PNG_FREE_UNKN */ + +#ifdef PNG_USER_MEM_SUPPORTED +PNG_EXPORTA(100, png_voidp, png_malloc_default, (png_const_structrp png_ptr, + png_alloc_size_t size), PNG_ALLOCATED PNG_DEPRECATED); +PNG_EXPORTA(101, void, png_free_default, (png_const_structrp png_ptr, + png_voidp ptr), PNG_DEPRECATED); +#endif + +#ifdef PNG_ERROR_TEXT_SUPPORTED +/* Fatal error in PNG image of libpng - can't continue */ +PNG_EXPORTA(102, void, png_error, (png_const_structrp png_ptr, + png_const_charp error_message), PNG_NORETURN); + +/* The same, but the chunk name is prepended to the error string. */ +PNG_EXPORTA(103, void, png_chunk_error, (png_const_structrp png_ptr, + png_const_charp error_message), PNG_NORETURN); + +#else +/* Fatal error in PNG image of libpng - can't continue */ +PNG_EXPORTA(104, void, png_err, (png_const_structrp png_ptr), PNG_NORETURN); +# define png_error(s1,s2) png_err(s1) +# define png_chunk_error(s1,s2) png_err(s1) +#endif + +#ifdef PNG_WARNINGS_SUPPORTED +/* Non-fatal error in libpng. Can continue, but may have a problem. */ +PNG_EXPORT(105, void, png_warning, (png_const_structrp png_ptr, + png_const_charp warning_message)); + +/* Non-fatal error in libpng, chunk name is prepended to message. */ +PNG_EXPORT(106, void, png_chunk_warning, (png_const_structrp png_ptr, + png_const_charp warning_message)); +#else +# define png_warning(s1,s2) ((void)(s1)) +# define png_chunk_warning(s1,s2) ((void)(s1)) +#endif + +#ifdef PNG_BENIGN_ERRORS_SUPPORTED +/* Benign error in libpng. Can continue, but may have a problem. + * User can choose whether to handle as a fatal error or as a warning. */ +PNG_EXPORT(107, void, png_benign_error, (png_const_structrp png_ptr, + png_const_charp warning_message)); + +#ifdef PNG_READ_SUPPORTED +/* Same, chunk name is prepended to message (only during read) */ +PNG_EXPORT(108, void, png_chunk_benign_error, (png_const_structrp png_ptr, + png_const_charp warning_message)); +#endif + +PNG_EXPORT(109, void, png_set_benign_errors, + (png_structrp png_ptr, int allowed)); +#else +# ifdef PNG_ALLOW_BENIGN_ERRORS +# define png_benign_error png_warning +# define png_chunk_benign_error png_chunk_warning +# else +# define png_benign_error png_error +# define png_chunk_benign_error png_chunk_error +# endif +#endif + +/* The png_set_ functions are for storing values in the png_info_struct. + * Similarly, the png_get_ calls are used to read values from the + * png_info_struct, either storing the parameters in the passed variables, or + * setting pointers into the png_info_struct where the data is stored. The + * png_get_ functions return a non-zero value if the data was available + * in info_ptr, or return zero and do not change any of the parameters if the + * data was not available. + * + * These functions should be used instead of directly accessing png_info + * to avoid problems with future changes in the size and internal layout of + * png_info_struct. + */ +/* Returns "flag" if chunk data is valid in info_ptr. */ +PNG_EXPORT(110, png_uint_32, png_get_valid, (png_const_structrp png_ptr, + png_const_inforp info_ptr, png_uint_32 flag)); + +/* Returns number of bytes needed to hold a transformed row. */ +PNG_EXPORT(111, png_size_t, png_get_rowbytes, (png_const_structrp png_ptr, + png_const_inforp info_ptr)); + +#ifdef PNG_INFO_IMAGE_SUPPORTED +/* Returns row_pointers, which is an array of pointers to scanlines that was + * returned from png_read_png(). + */ +PNG_EXPORT(112, png_bytepp, png_get_rows, (png_const_structrp png_ptr, + png_const_inforp info_ptr)); + +/* Set row_pointers, which is an array of pointers to scanlines for use + * by png_write_png(). + */ +PNG_EXPORT(113, void, png_set_rows, (png_const_structrp png_ptr, + png_inforp info_ptr, png_bytepp row_pointers)); +#endif + +/* Returns number of color channels in image. */ +PNG_EXPORT(114, png_byte, png_get_channels, (png_const_structrp png_ptr, + png_const_inforp info_ptr)); + +#ifdef PNG_EASY_ACCESS_SUPPORTED +/* Returns image width in pixels. */ +PNG_EXPORT(115, png_uint_32, png_get_image_width, (png_const_structrp png_ptr, + png_const_inforp info_ptr)); + +/* Returns image height in pixels. */ +PNG_EXPORT(116, png_uint_32, png_get_image_height, (png_const_structrp png_ptr, + png_const_inforp info_ptr)); + +/* Returns image bit_depth. */ +PNG_EXPORT(117, png_byte, png_get_bit_depth, (png_const_structrp png_ptr, + png_const_inforp info_ptr)); + +/* Returns image color_type. */ +PNG_EXPORT(118, png_byte, png_get_color_type, (png_const_structrp png_ptr, + png_const_inforp info_ptr)); + +/* Returns image filter_type. */ +PNG_EXPORT(119, png_byte, png_get_filter_type, (png_const_structrp png_ptr, + png_const_inforp info_ptr)); + +/* Returns image interlace_type. */ +PNG_EXPORT(120, png_byte, png_get_interlace_type, (png_const_structrp png_ptr, + png_const_inforp info_ptr)); + +/* Returns image compression_type. */ +PNG_EXPORT(121, png_byte, png_get_compression_type, (png_const_structrp png_ptr, + png_const_inforp info_ptr)); + +/* Returns image resolution in pixels per meter, from pHYs chunk data. */ +PNG_EXPORT(122, png_uint_32, png_get_pixels_per_meter, + (png_const_structrp png_ptr, png_const_inforp info_ptr)); +PNG_EXPORT(123, png_uint_32, png_get_x_pixels_per_meter, + (png_const_structrp png_ptr, png_const_inforp info_ptr)); +PNG_EXPORT(124, png_uint_32, png_get_y_pixels_per_meter, + (png_const_structrp png_ptr, png_const_inforp info_ptr)); + +/* Returns pixel aspect ratio, computed from pHYs chunk data. */ +PNG_FP_EXPORT(125, float, png_get_pixel_aspect_ratio, + (png_const_structrp png_ptr, png_const_inforp info_ptr)) +PNG_FIXED_EXPORT(210, png_fixed_point, png_get_pixel_aspect_ratio_fixed, + (png_const_structrp png_ptr, png_const_inforp info_ptr)) + +/* Returns image x, y offset in pixels or microns, from oFFs chunk data. */ +PNG_EXPORT(126, png_int_32, png_get_x_offset_pixels, + (png_const_structrp png_ptr, png_const_inforp info_ptr)); +PNG_EXPORT(127, png_int_32, png_get_y_offset_pixels, + (png_const_structrp png_ptr, png_const_inforp info_ptr)); +PNG_EXPORT(128, png_int_32, png_get_x_offset_microns, + (png_const_structrp png_ptr, png_const_inforp info_ptr)); +PNG_EXPORT(129, png_int_32, png_get_y_offset_microns, + (png_const_structrp png_ptr, png_const_inforp info_ptr)); + +#endif /* PNG_EASY_ACCESS_SUPPORTED */ + +#ifdef PNG_READ_SUPPORTED +/* Returns pointer to signature string read from PNG header */ +PNG_EXPORT(130, png_const_bytep, png_get_signature, (png_const_structrp png_ptr, + png_const_inforp info_ptr)); +#endif + +#ifdef PNG_bKGD_SUPPORTED +PNG_EXPORT(131, png_uint_32, png_get_bKGD, (png_const_structrp png_ptr, + png_inforp info_ptr, png_color_16p *background)); +#endif + +#ifdef PNG_bKGD_SUPPORTED +PNG_EXPORT(132, void, png_set_bKGD, (png_const_structrp png_ptr, + png_inforp info_ptr, png_const_color_16p background)); +#endif + +#ifdef PNG_cHRM_SUPPORTED +PNG_FP_EXPORT(133, png_uint_32, png_get_cHRM, (png_const_structrp png_ptr, + png_const_inforp info_ptr, double *white_x, double *white_y, double *red_x, + double *red_y, double *green_x, double *green_y, double *blue_x, + double *blue_y)) +PNG_FP_EXPORT(230, png_uint_32, png_get_cHRM_XYZ, (png_const_structrp png_ptr, + png_const_inforp info_ptr, double *red_X, double *red_Y, double *red_Z, + double *green_X, double *green_Y, double *green_Z, double *blue_X, + double *blue_Y, double *blue_Z)) +PNG_FIXED_EXPORT(134, png_uint_32, png_get_cHRM_fixed, + (png_const_structrp png_ptr, png_const_inforp info_ptr, + png_fixed_point *int_white_x, png_fixed_point *int_white_y, + png_fixed_point *int_red_x, png_fixed_point *int_red_y, + png_fixed_point *int_green_x, png_fixed_point *int_green_y, + png_fixed_point *int_blue_x, png_fixed_point *int_blue_y)) +PNG_FIXED_EXPORT(231, png_uint_32, png_get_cHRM_XYZ_fixed, + (png_const_structrp png_ptr, png_const_inforp info_ptr, + png_fixed_point *int_red_X, png_fixed_point *int_red_Y, + png_fixed_point *int_red_Z, png_fixed_point *int_green_X, + png_fixed_point *int_green_Y, png_fixed_point *int_green_Z, + png_fixed_point *int_blue_X, png_fixed_point *int_blue_Y, + png_fixed_point *int_blue_Z)) +#endif + +#ifdef PNG_cHRM_SUPPORTED +PNG_FP_EXPORT(135, void, png_set_cHRM, (png_const_structrp png_ptr, + png_inforp info_ptr, + double white_x, double white_y, double red_x, double red_y, double green_x, + double green_y, double blue_x, double blue_y)) +PNG_FP_EXPORT(232, void, png_set_cHRM_XYZ, (png_const_structrp png_ptr, + png_inforp info_ptr, double red_X, double red_Y, double red_Z, + double green_X, double green_Y, double green_Z, double blue_X, + double blue_Y, double blue_Z)) +PNG_FIXED_EXPORT(136, void, png_set_cHRM_fixed, (png_const_structrp png_ptr, + png_inforp info_ptr, png_fixed_point int_white_x, + png_fixed_point int_white_y, png_fixed_point int_red_x, + png_fixed_point int_red_y, png_fixed_point int_green_x, + png_fixed_point int_green_y, png_fixed_point int_blue_x, + png_fixed_point int_blue_y)) +PNG_FIXED_EXPORT(233, void, png_set_cHRM_XYZ_fixed, (png_const_structrp png_ptr, + png_inforp info_ptr, png_fixed_point int_red_X, png_fixed_point int_red_Y, + png_fixed_point int_red_Z, png_fixed_point int_green_X, + png_fixed_point int_green_Y, png_fixed_point int_green_Z, + png_fixed_point int_blue_X, png_fixed_point int_blue_Y, + png_fixed_point int_blue_Z)) +#endif + +#ifdef PNG_gAMA_SUPPORTED +PNG_FP_EXPORT(137, png_uint_32, png_get_gAMA, (png_const_structrp png_ptr, + png_const_inforp info_ptr, double *file_gamma)) +PNG_FIXED_EXPORT(138, png_uint_32, png_get_gAMA_fixed, + (png_const_structrp png_ptr, png_const_inforp info_ptr, + png_fixed_point *int_file_gamma)) +#endif + +#ifdef PNG_gAMA_SUPPORTED +PNG_FP_EXPORT(139, void, png_set_gAMA, (png_const_structrp png_ptr, + png_inforp info_ptr, double file_gamma)) +PNG_FIXED_EXPORT(140, void, png_set_gAMA_fixed, (png_const_structrp png_ptr, + png_inforp info_ptr, png_fixed_point int_file_gamma)) +#endif + +#ifdef PNG_hIST_SUPPORTED +PNG_EXPORT(141, png_uint_32, png_get_hIST, (png_const_structrp png_ptr, + png_inforp info_ptr, png_uint_16p *hist)); +#endif + +#ifdef PNG_hIST_SUPPORTED +PNG_EXPORT(142, void, png_set_hIST, (png_const_structrp png_ptr, + png_inforp info_ptr, png_const_uint_16p hist)); +#endif + +PNG_EXPORT(143, png_uint_32, png_get_IHDR, (png_const_structrp png_ptr, + png_const_inforp info_ptr, png_uint_32 *width, png_uint_32 *height, + int *bit_depth, int *color_type, int *interlace_method, + int *compression_method, int *filter_method)); + +PNG_EXPORT(144, void, png_set_IHDR, (png_const_structrp png_ptr, + png_inforp info_ptr, png_uint_32 width, png_uint_32 height, int bit_depth, + int color_type, int interlace_method, int compression_method, + int filter_method)); + +#ifdef PNG_oFFs_SUPPORTED +PNG_EXPORT(145, png_uint_32, png_get_oFFs, (png_const_structrp png_ptr, + png_const_inforp info_ptr, png_int_32 *offset_x, png_int_32 *offset_y, + int *unit_type)); +#endif + +#ifdef PNG_oFFs_SUPPORTED +PNG_EXPORT(146, void, png_set_oFFs, (png_const_structrp png_ptr, + png_inforp info_ptr, png_int_32 offset_x, png_int_32 offset_y, + int unit_type)); +#endif + +#ifdef PNG_pCAL_SUPPORTED +PNG_EXPORT(147, png_uint_32, png_get_pCAL, (png_const_structrp png_ptr, + png_inforp info_ptr, png_charp *purpose, png_int_32 *X0, + png_int_32 *X1, int *type, int *nparams, png_charp *units, + png_charpp *params)); +#endif + +#ifdef PNG_pCAL_SUPPORTED +PNG_EXPORT(148, void, png_set_pCAL, (png_const_structrp png_ptr, + png_inforp info_ptr, png_const_charp purpose, png_int_32 X0, png_int_32 X1, + int type, int nparams, png_const_charp units, png_charpp params)); +#endif + +#ifdef PNG_pHYs_SUPPORTED +PNG_EXPORT(149, png_uint_32, png_get_pHYs, (png_const_structrp png_ptr, + png_const_inforp info_ptr, png_uint_32 *res_x, png_uint_32 *res_y, + int *unit_type)); +#endif + +#ifdef PNG_pHYs_SUPPORTED +PNG_EXPORT(150, void, png_set_pHYs, (png_const_structrp png_ptr, + png_inforp info_ptr, png_uint_32 res_x, png_uint_32 res_y, int unit_type)); +#endif + +PNG_EXPORT(151, png_uint_32, png_get_PLTE, (png_const_structrp png_ptr, + png_inforp info_ptr, png_colorp *palette, int *num_palette)); + +PNG_EXPORT(152, void, png_set_PLTE, (png_structrp png_ptr, + png_inforp info_ptr, png_const_colorp palette, int num_palette)); + +#ifdef PNG_sBIT_SUPPORTED +PNG_EXPORT(153, png_uint_32, png_get_sBIT, (png_const_structrp png_ptr, + png_inforp info_ptr, png_color_8p *sig_bit)); +#endif + +#ifdef PNG_sBIT_SUPPORTED +PNG_EXPORT(154, void, png_set_sBIT, (png_const_structrp png_ptr, + png_inforp info_ptr, png_const_color_8p sig_bit)); +#endif + +#ifdef PNG_sRGB_SUPPORTED +PNG_EXPORT(155, png_uint_32, png_get_sRGB, (png_const_structrp png_ptr, + png_const_inforp info_ptr, int *file_srgb_intent)); +#endif + +#ifdef PNG_sRGB_SUPPORTED +PNG_EXPORT(156, void, png_set_sRGB, (png_const_structrp png_ptr, + png_inforp info_ptr, int srgb_intent)); +PNG_EXPORT(157, void, png_set_sRGB_gAMA_and_cHRM, (png_const_structrp png_ptr, + png_inforp info_ptr, int srgb_intent)); +#endif + +#ifdef PNG_iCCP_SUPPORTED +PNG_EXPORT(158, png_uint_32, png_get_iCCP, (png_const_structrp png_ptr, + png_inforp info_ptr, png_charpp name, int *compression_type, + png_bytepp profile, png_uint_32 *proflen)); +#endif + +#ifdef PNG_iCCP_SUPPORTED +PNG_EXPORT(159, void, png_set_iCCP, (png_const_structrp png_ptr, + png_inforp info_ptr, png_const_charp name, int compression_type, + png_const_bytep profile, png_uint_32 proflen)); +#endif + +#ifdef PNG_sPLT_SUPPORTED +PNG_EXPORT(160, int, png_get_sPLT, (png_const_structrp png_ptr, + png_inforp info_ptr, png_sPLT_tpp entries)); +#endif + +#ifdef PNG_sPLT_SUPPORTED +PNG_EXPORT(161, void, png_set_sPLT, (png_const_structrp png_ptr, + png_inforp info_ptr, png_const_sPLT_tp entries, int nentries)); +#endif + +#ifdef PNG_TEXT_SUPPORTED +/* png_get_text also returns the number of text chunks in *num_text */ +PNG_EXPORT(162, int, png_get_text, (png_const_structrp png_ptr, + png_inforp info_ptr, png_textp *text_ptr, int *num_text)); +#endif + +/* Note while png_set_text() will accept a structure whose text, + * language, and translated keywords are NULL pointers, the structure + * returned by png_get_text will always contain regular + * zero-terminated C strings. They might be empty strings but + * they will never be NULL pointers. + */ + +#ifdef PNG_TEXT_SUPPORTED +PNG_EXPORT(163, void, png_set_text, (png_const_structrp png_ptr, + png_inforp info_ptr, png_const_textp text_ptr, int num_text)); +#endif + +#ifdef PNG_tIME_SUPPORTED +PNG_EXPORT(164, png_uint_32, png_get_tIME, (png_const_structrp png_ptr, + png_inforp info_ptr, png_timep *mod_time)); +#endif + +#ifdef PNG_tIME_SUPPORTED +PNG_EXPORT(165, void, png_set_tIME, (png_const_structrp png_ptr, + png_inforp info_ptr, png_const_timep mod_time)); +#endif + +#ifdef PNG_tRNS_SUPPORTED +PNG_EXPORT(166, png_uint_32, png_get_tRNS, (png_const_structrp png_ptr, + png_inforp info_ptr, png_bytep *trans_alpha, int *num_trans, + png_color_16p *trans_color)); +#endif + +#ifdef PNG_tRNS_SUPPORTED +PNG_EXPORT(167, void, png_set_tRNS, (png_structrp png_ptr, + png_inforp info_ptr, png_const_bytep trans_alpha, int num_trans, + png_const_color_16p trans_color)); +#endif + +#ifdef PNG_sCAL_SUPPORTED +PNG_FP_EXPORT(168, png_uint_32, png_get_sCAL, (png_const_structrp png_ptr, + png_const_inforp info_ptr, int *unit, double *width, double *height)) +#if defined(PNG_FLOATING_ARITHMETIC_SUPPORTED) || \ + defined(PNG_FLOATING_POINT_SUPPORTED) +/* NOTE: this API is currently implemented using floating point arithmetic, + * consequently it can only be used on systems with floating point support. + * In any case the range of values supported by png_fixed_point is small and it + * is highly recommended that png_get_sCAL_s be used instead. + */ +PNG_FIXED_EXPORT(214, png_uint_32, png_get_sCAL_fixed, + (png_const_structrp png_ptr, png_const_inforp info_ptr, int *unit, + png_fixed_point *width, png_fixed_point *height)) +#endif +PNG_EXPORT(169, png_uint_32, png_get_sCAL_s, + (png_const_structrp png_ptr, png_const_inforp info_ptr, int *unit, + png_charpp swidth, png_charpp sheight)); + +PNG_FP_EXPORT(170, void, png_set_sCAL, (png_const_structrp png_ptr, + png_inforp info_ptr, int unit, double width, double height)) +PNG_FIXED_EXPORT(213, void, png_set_sCAL_fixed, (png_const_structrp png_ptr, + png_inforp info_ptr, int unit, png_fixed_point width, + png_fixed_point height)) +PNG_EXPORT(171, void, png_set_sCAL_s, (png_const_structrp png_ptr, + png_inforp info_ptr, int unit, + png_const_charp swidth, png_const_charp sheight)); +#endif /* PNG_sCAL_SUPPORTED */ + +#ifdef PNG_SET_UNKNOWN_CHUNKS_SUPPORTED +/* Provide the default handling for all unknown chunks or, optionally, for + * specific unknown chunks. + * + * NOTE: prior to 1.6.0 the handling specified for particular chunks on read was + * ignored and the default was used, the per-chunk setting only had an effect on + * write. If you wish to have chunk-specific handling on read in code that must + * work on earlier versions you must use a user chunk callback to specify the + * desired handling (keep or discard.) + * + * The 'keep' parameter is a PNG_HANDLE_CHUNK_ value as listed below. The + * parameter is interpreted as follows: + * + * READ: + * PNG_HANDLE_CHUNK_AS_DEFAULT: + * Known chunks: do normal libpng processing, do not keep the chunk (but + * see the comments below about PNG_HANDLE_AS_UNKNOWN_SUPPORTED) + * Unknown chunks: for a specific chunk use the global default, when used + * as the default discard the chunk data. + * PNG_HANDLE_CHUNK_NEVER: + * Discard the chunk data. + * PNG_HANDLE_CHUNK_IF_SAFE: + * Keep the chunk data if the chunk is not critical else raise a chunk + * error. + * PNG_HANDLE_CHUNK_ALWAYS: + * Keep the chunk data. + * + * If the chunk data is saved it can be retrieved using png_get_unknown_chunks, + * below. Notice that specifying "AS_DEFAULT" as a global default is equivalent + * to specifying "NEVER", however when "AS_DEFAULT" is used for specific chunks + * it simply resets the behavior to the libpng default. + * + * INTERACTION WTIH USER CHUNK CALLBACKS: + * The per-chunk handling is always used when there is a png_user_chunk_ptr + * callback and the callback returns 0; the chunk is then always stored *unless* + * it is critical and the per-chunk setting is other than ALWAYS. Notice that + * the global default is *not* used in this case. (In effect the per-chunk + * value is incremented to at least IF_SAFE.) + * + * IMPORTANT NOTE: this behavior will change in libpng 1.7 - the global and + * per-chunk defaults will be honored. If you want to preserve the current + * behavior when your callback returns 0 you must set PNG_HANDLE_CHUNK_IF_SAFE + * as the default - if you don't do this libpng 1.6 will issue a warning. + * + * If you want unhandled unknown chunks to be discarded in libpng 1.6 and + * earlier simply return '1' (handled). + * + * PNG_HANDLE_AS_UNKNOWN_SUPPORTED: + * If this is *not* set known chunks will always be handled by libpng and + * will never be stored in the unknown chunk list. Known chunks listed to + * png_set_keep_unknown_chunks will have no effect. If it is set then known + * chunks listed with a keep other than AS_DEFAULT will *never* be processed + * by libpng, in addition critical chunks must either be processed by the + * callback or saved. + * + * The IHDR and IEND chunks must not be listed. Because this turns off the + * default handling for chunks that would otherwise be recognized the + * behavior of libpng transformations may well become incorrect! + * + * WRITE: + * When writing chunks the options only apply to the chunks specified by + * png_set_unknown_chunks (below), libpng will *always* write known chunks + * required by png_set_ calls and will always write the core critical chunks + * (as required for PLTE). + * + * Each chunk in the png_set_unknown_chunks list is looked up in the + * png_set_keep_unknown_chunks list to find the keep setting, this is then + * interpreted as follows: + * + * PNG_HANDLE_CHUNK_AS_DEFAULT: + * Write safe-to-copy chunks and write other chunks if the global + * default is set to _ALWAYS, otherwise don't write this chunk. + * PNG_HANDLE_CHUNK_NEVER: + * Do not write the chunk. + * PNG_HANDLE_CHUNK_IF_SAFE: + * Write the chunk if it is safe-to-copy, otherwise do not write it. + * PNG_HANDLE_CHUNK_ALWAYS: + * Write the chunk. + * + * Note that the default behavior is effectively the opposite of the read case - + * in read unknown chunks are not stored by default, in write they are written + * by default. Also the behavior of PNG_HANDLE_CHUNK_IF_SAFE is very different + * - on write the safe-to-copy bit is checked, on read the critical bit is + * checked and on read if the chunk is critical an error will be raised. + * + * num_chunks: + * =========== + * If num_chunks is positive, then the "keep" parameter specifies the manner + * for handling only those chunks appearing in the chunk_list array, + * otherwise the chunk list array is ignored. + * + * If num_chunks is 0 the "keep" parameter specifies the default behavior for + * unknown chunks, as described above. + * + * If num_chunks is negative, then the "keep" parameter specifies the manner + * for handling all unknown chunks plus all chunks recognized by libpng + * except for the IHDR, PLTE, tRNS, IDAT, and IEND chunks (which continue to + * be processed by libpng. + */ +PNG_EXPORT(172, void, png_set_keep_unknown_chunks, (png_structrp png_ptr, + int keep, png_const_bytep chunk_list, int num_chunks)); + +/* The "keep" PNG_HANDLE_CHUNK_ parameter for the specified chunk is returned; + * the result is therefore true (non-zero) if special handling is required, + * false for the default handling. + */ +PNG_EXPORT(173, int, png_handle_as_unknown, (png_const_structrp png_ptr, + png_const_bytep chunk_name)); +#endif + +#ifdef PNG_STORE_UNKNOWN_CHUNKS_SUPPORTED +PNG_EXPORT(174, void, png_set_unknown_chunks, (png_const_structrp png_ptr, + png_inforp info_ptr, png_const_unknown_chunkp unknowns, + int num_unknowns)); + /* NOTE: prior to 1.6.0 this routine set the 'location' field of the added + * unknowns to the location currently stored in the png_struct. This is + * invariably the wrong value on write. To fix this call the following API + * for each chunk in the list with the correct location. If you know your + * code won't be compiled on earlier versions you can rely on + * png_set_unknown_chunks(write-ptr, png_get_unknown_chunks(read-ptr)) doing + * the correct thing. + */ + +PNG_EXPORT(175, void, png_set_unknown_chunk_location, + (png_const_structrp png_ptr, png_inforp info_ptr, int chunk, int location)); + +PNG_EXPORT(176, int, png_get_unknown_chunks, (png_const_structrp png_ptr, + png_inforp info_ptr, png_unknown_chunkpp entries)); +#endif + +/* Png_free_data() will turn off the "valid" flag for anything it frees. + * If you need to turn it off for a chunk that your application has freed, + * you can use png_set_invalid(png_ptr, info_ptr, PNG_INFO_CHNK); + */ +PNG_EXPORT(177, void, png_set_invalid, (png_const_structrp png_ptr, + png_inforp info_ptr, int mask)); + +#ifdef PNG_INFO_IMAGE_SUPPORTED +/* The "params" pointer is currently not used and is for future expansion. */ +#ifdef PNG_SEQUENTIAL_READ_SUPPORTED +PNG_EXPORT(178, void, png_read_png, (png_structrp png_ptr, png_inforp info_ptr, + int transforms, png_voidp params)); +#endif +#ifdef PNG_WRITE_SUPPORTED +PNG_EXPORT(179, void, png_write_png, (png_structrp png_ptr, png_inforp info_ptr, + int transforms, png_voidp params)); +#endif +#endif + +PNG_EXPORT(180, png_const_charp, png_get_copyright, + (png_const_structrp png_ptr)); +PNG_EXPORT(181, png_const_charp, png_get_header_ver, + (png_const_structrp png_ptr)); +PNG_EXPORT(182, png_const_charp, png_get_header_version, + (png_const_structrp png_ptr)); +PNG_EXPORT(183, png_const_charp, png_get_libpng_ver, + (png_const_structrp png_ptr)); + +#ifdef PNG_MNG_FEATURES_SUPPORTED +PNG_EXPORT(184, png_uint_32, png_permit_mng_features, (png_structrp png_ptr, + png_uint_32 mng_features_permitted)); +#endif + +/* For use in png_set_keep_unknown, added to version 1.2.6 */ +#define PNG_HANDLE_CHUNK_AS_DEFAULT 0 +#define PNG_HANDLE_CHUNK_NEVER 1 +#define PNG_HANDLE_CHUNK_IF_SAFE 2 +#define PNG_HANDLE_CHUNK_ALWAYS 3 +#define PNG_HANDLE_CHUNK_LAST 4 + +/* Strip the prepended error numbers ("#nnn ") from error and warning + * messages before passing them to the error or warning handler. + */ +#ifdef PNG_ERROR_NUMBERS_SUPPORTED +PNG_EXPORT(185, void, png_set_strip_error_numbers, (png_structrp png_ptr, + png_uint_32 strip_mode)); +#endif + +/* Added in libpng-1.2.6 */ +#ifdef PNG_SET_USER_LIMITS_SUPPORTED +PNG_EXPORT(186, void, png_set_user_limits, (png_structrp png_ptr, + png_uint_32 user_width_max, png_uint_32 user_height_max)); +PNG_EXPORT(187, png_uint_32, png_get_user_width_max, + (png_const_structrp png_ptr)); +PNG_EXPORT(188, png_uint_32, png_get_user_height_max, + (png_const_structrp png_ptr)); +/* Added in libpng-1.4.0 */ +PNG_EXPORT(189, void, png_set_chunk_cache_max, (png_structrp png_ptr, + png_uint_32 user_chunk_cache_max)); +PNG_EXPORT(190, png_uint_32, png_get_chunk_cache_max, + (png_const_structrp png_ptr)); +/* Added in libpng-1.4.1 */ +PNG_EXPORT(191, void, png_set_chunk_malloc_max, (png_structrp png_ptr, + png_alloc_size_t user_chunk_cache_max)); +PNG_EXPORT(192, png_alloc_size_t, png_get_chunk_malloc_max, + (png_const_structrp png_ptr)); +#endif + +#if defined(PNG_INCH_CONVERSIONS_SUPPORTED) +PNG_EXPORT(193, png_uint_32, png_get_pixels_per_inch, + (png_const_structrp png_ptr, png_const_inforp info_ptr)); + +PNG_EXPORT(194, png_uint_32, png_get_x_pixels_per_inch, + (png_const_structrp png_ptr, png_const_inforp info_ptr)); + +PNG_EXPORT(195, png_uint_32, png_get_y_pixels_per_inch, + (png_const_structrp png_ptr, png_const_inforp info_ptr)); + +PNG_FP_EXPORT(196, float, png_get_x_offset_inches, + (png_const_structrp png_ptr, png_const_inforp info_ptr)) +#ifdef PNG_FIXED_POINT_SUPPORTED /* otherwise not implemented. */ +PNG_FIXED_EXPORT(211, png_fixed_point, png_get_x_offset_inches_fixed, + (png_const_structrp png_ptr, png_const_inforp info_ptr)) +#endif + +PNG_FP_EXPORT(197, float, png_get_y_offset_inches, (png_const_structrp png_ptr, + png_const_inforp info_ptr)) +#ifdef PNG_FIXED_POINT_SUPPORTED /* otherwise not implemented. */ +PNG_FIXED_EXPORT(212, png_fixed_point, png_get_y_offset_inches_fixed, + (png_const_structrp png_ptr, png_const_inforp info_ptr)) +#endif + +# ifdef PNG_pHYs_SUPPORTED +PNG_EXPORT(198, png_uint_32, png_get_pHYs_dpi, (png_const_structrp png_ptr, + png_const_inforp info_ptr, png_uint_32 *res_x, png_uint_32 *res_y, + int *unit_type)); +# endif /* PNG_pHYs_SUPPORTED */ +#endif /* PNG_INCH_CONVERSIONS_SUPPORTED */ + +/* Added in libpng-1.4.0 */ +#ifdef PNG_IO_STATE_SUPPORTED +PNG_EXPORT(199, png_uint_32, png_get_io_state, (png_const_structrp png_ptr)); + +/* Removed from libpng 1.6; use png_get_io_chunk_type. */ +PNG_REMOVED(200, png_const_bytep, png_get_io_chunk_name, (png_structrp png_ptr), + PNG_DEPRECATED) + +PNG_EXPORT(216, png_uint_32, png_get_io_chunk_type, + (png_const_structrp png_ptr)); + +/* The flags returned by png_get_io_state() are the following: */ +# define PNG_IO_NONE 0x0000 /* no I/O at this moment */ +# define PNG_IO_READING 0x0001 /* currently reading */ +# define PNG_IO_WRITING 0x0002 /* currently writing */ +# define PNG_IO_SIGNATURE 0x0010 /* currently at the file signature */ +# define PNG_IO_CHUNK_HDR 0x0020 /* currently at the chunk header */ +# define PNG_IO_CHUNK_DATA 0x0040 /* currently at the chunk data */ +# define PNG_IO_CHUNK_CRC 0x0080 /* currently at the chunk crc */ +# define PNG_IO_MASK_OP 0x000f /* current operation: reading/writing */ +# define PNG_IO_MASK_LOC 0x00f0 /* current location: sig/hdr/data/crc */ +#endif /* ?PNG_IO_STATE_SUPPORTED */ + +/* Interlace support. The following macros are always defined so that if + * libpng interlace handling is turned off the macros may be used to handle + * interlaced images within the application. + */ +#define PNG_INTERLACE_ADAM7_PASSES 7 + +/* Two macros to return the first row and first column of the original, + * full, image which appears in a given pass. 'pass' is in the range 0 + * to 6 and the result is in the range 0 to 7. + */ +#define PNG_PASS_START_ROW(pass) (((1&~(pass))<<(3-((pass)>>1)))&7) +#define PNG_PASS_START_COL(pass) (((1& (pass))<<(3-(((pass)+1)>>1)))&7) + +/* A macro to return the offset between pixels in the output row for a pair of + * pixels in the input - effectively the inverse of the 'COL_SHIFT' macro that + * follows. Note that ROW_OFFSET is the offset from one row to the next whereas + * COL_OFFSET is from one column to the next, within a row. + */ +#define PNG_PASS_ROW_OFFSET(pass) ((pass)>2?(8>>(((pass)-1)>>1)):8) +#define PNG_PASS_COL_OFFSET(pass) (1<<((7-(pass))>>1)) + +/* Two macros to help evaluate the number of rows or columns in each + * pass. This is expressed as a shift - effectively log2 of the number or + * rows or columns in each 8x8 tile of the original image. + */ +#define PNG_PASS_ROW_SHIFT(pass) ((pass)>2?(8-(pass))>>1:3) +#define PNG_PASS_COL_SHIFT(pass) ((pass)>1?(7-(pass))>>1:3) + +/* Hence two macros to determine the number of rows or columns in a given + * pass of an image given its height or width. In fact these macros may + * return non-zero even though the sub-image is empty, because the other + * dimension may be empty for a small image. + */ +#define PNG_PASS_ROWS(height, pass) (((height)+(((1<>PNG_PASS_ROW_SHIFT(pass)) +#define PNG_PASS_COLS(width, pass) (((width)+(((1<>PNG_PASS_COL_SHIFT(pass)) + +/* For the reader row callbacks (both progressive and sequential) it is + * necessary to find the row in the output image given a row in an interlaced + * image, so two more macros: + */ +#define PNG_ROW_FROM_PASS_ROW(y_in, pass) \ + (((y_in)<>(((7-(off))-(pass))<<2)) & 0xF) | \ + ((0x01145AF0>>(((7-(off))-(pass))<<2)) & 0xF0)) + +#define PNG_ROW_IN_INTERLACE_PASS(y, pass) \ + ((PNG_PASS_MASK(pass,0) >> ((y)&7)) & 1) +#define PNG_COL_IN_INTERLACE_PASS(x, pass) \ + ((PNG_PASS_MASK(pass,1) >> ((x)&7)) & 1) + +#ifdef PNG_READ_COMPOSITE_NODIV_SUPPORTED +/* With these routines we avoid an integer divide, which will be slower on + * most machines. However, it does take more operations than the corresponding + * divide method, so it may be slower on a few RISC systems. There are two + * shifts (by 8 or 16 bits) and an addition, versus a single integer divide. + * + * Note that the rounding factors are NOT supposed to be the same! 128 and + * 32768 are correct for the NODIV code; 127 and 32767 are correct for the + * standard method. + * + * [Optimized code by Greg Roelofs and Mark Adler...blame us for bugs. :-) ] + */ + + /* fg and bg should be in `gamma 1.0' space; alpha is the opacity */ + +# define png_composite(composite, fg, alpha, bg) \ + { png_uint_16 temp = (png_uint_16)((png_uint_16)(fg) \ + * (png_uint_16)(alpha) \ + + (png_uint_16)(bg)*(png_uint_16)(255 \ + - (png_uint_16)(alpha)) + 128); \ + (composite) = (png_byte)((temp + (temp >> 8)) >> 8); } + +# define png_composite_16(composite, fg, alpha, bg) \ + { png_uint_32 temp = (png_uint_32)((png_uint_32)(fg) \ + * (png_uint_32)(alpha) \ + + (png_uint_32)(bg)*(65535 \ + - (png_uint_32)(alpha)) + 32768); \ + (composite) = (png_uint_16)((temp + (temp >> 16)) >> 16); } + +#else /* Standard method using integer division */ + +# define png_composite(composite, fg, alpha, bg) \ + (composite) = (png_byte)(((png_uint_16)(fg) * (png_uint_16)(alpha) + \ + (png_uint_16)(bg) * (png_uint_16)(255 - (png_uint_16)(alpha)) + \ + 127) / 255) + +# define png_composite_16(composite, fg, alpha, bg) \ + (composite) = (png_uint_16)(((png_uint_32)(fg) * (png_uint_32)(alpha) + \ + (png_uint_32)(bg)*(png_uint_32)(65535 - (png_uint_32)(alpha)) + \ + 32767) / 65535) +#endif /* PNG_READ_COMPOSITE_NODIV_SUPPORTED */ + +#ifdef PNG_READ_INT_FUNCTIONS_SUPPORTED +PNG_EXPORT(201, png_uint_32, png_get_uint_32, (png_const_bytep buf)); +PNG_EXPORT(202, png_uint_16, png_get_uint_16, (png_const_bytep buf)); +PNG_EXPORT(203, png_int_32, png_get_int_32, (png_const_bytep buf)); +#endif + +PNG_EXPORT(204, png_uint_32, png_get_uint_31, (png_const_structrp png_ptr, + png_const_bytep buf)); +/* No png_get_int_16 -- may be added if there's a real need for it. */ + +/* Place a 32-bit number into a buffer in PNG byte order (big-endian). */ +#ifdef PNG_WRITE_INT_FUNCTIONS_SUPPORTED +PNG_EXPORT(205, void, png_save_uint_32, (png_bytep buf, png_uint_32 i)); +#endif +#ifdef PNG_SAVE_INT_32_SUPPORTED +PNG_EXPORT(206, void, png_save_int_32, (png_bytep buf, png_int_32 i)); +#endif + +/* Place a 16-bit number into a buffer in PNG byte order. + * The parameter is declared unsigned int, not png_uint_16, + * just to avoid potential problems on pre-ANSI C compilers. + */ +#ifdef PNG_WRITE_INT_FUNCTIONS_SUPPORTED +PNG_EXPORT(207, void, png_save_uint_16, (png_bytep buf, unsigned int i)); +/* No png_save_int_16 -- may be added if there's a real need for it. */ +#endif + +#ifdef PNG_USE_READ_MACROS +/* Inline macros to do direct reads of bytes from the input buffer. + * The png_get_int_32() routine assumes we are using two's complement + * format for negative values, which is almost certainly true. + */ +# define PNG_get_uint_32(buf) \ + (((png_uint_32)(*(buf)) << 24) + \ + ((png_uint_32)(*((buf) + 1)) << 16) + \ + ((png_uint_32)(*((buf) + 2)) << 8) + \ + ((png_uint_32)(*((buf) + 3)))) + + /* From libpng-1.4.0 until 1.4.4, the png_get_uint_16 macro (but not the + * function) incorrectly returned a value of type png_uint_32. + */ +# define PNG_get_uint_16(buf) \ + ((png_uint_16) \ + (((unsigned int)(*(buf)) << 8) + \ + ((unsigned int)(*((buf) + 1))))) + +# define PNG_get_int_32(buf) \ + ((png_int_32)((*(buf) & 0x80) \ + ? -((png_int_32)((png_get_uint_32(buf) ^ 0xffffffffL) + 1)) \ + : (png_int_32)png_get_uint_32(buf))) + + /* If PNG_PREFIX is defined the same thing as below happens in pnglibconf.h, + * but defining a macro name prefixed with PNG_PREFIX. + */ +# ifndef PNG_PREFIX +# define png_get_uint_32(buf) PNG_get_uint_32(buf) +# define png_get_uint_16(buf) PNG_get_uint_16(buf) +# define png_get_int_32(buf) PNG_get_int_32(buf) +# endif +#else +# ifdef PNG_PREFIX + /* No macros; revert to the (redefined) function */ +# define PNG_get_uint_32 (png_get_uint_32) +# define PNG_get_uint_16 (png_get_uint_16) +# define PNG_get_int_32 (png_get_int_32) +# endif +#endif + +/******************************************************************************* + * SIMPLIFIED API + ******************************************************************************* + * + * Please read the documentation in libpng-manual.txt (TODO: write said + * documentation) if you don't understand what follows. + * + * The simplified API hides the details of both libpng and the PNG file format + * itself. It allows PNG files to be read into a very limited number of + * in-memory bitmap formats or to be written from the same formats. If these + * formats do not accomodate your needs then you can, and should, use the more + * sophisticated APIs above - these support a wide variety of in-memory formats + * and a wide variety of sophisticated transformations to those formats as well + * as a wide variety of APIs to manipulate ancillary information. + * + * To read a PNG file using the simplified API: + * + * 1) Declare a 'png_image' structure (see below) on the stack and set the + * version field to PNG_IMAGE_VERSION. + * 2) Call the appropriate png_image_begin_read... function. + * 3) Set the png_image 'format' member to the required sample format. + * 4) Allocate a buffer for the image and, if required, the color-map. + * 5) Call png_image_finish_read to read the image and, if required, the + * color-map into your buffers. + * + * There are no restrictions on the format of the PNG input itself; all valid + * color types, bit depths, and interlace methods are acceptable, and the + * input image is transformed as necessary to the requested in-memory format + * during the png_image_finish_read() step. The only caveat is that if you + * request a color-mapped image from a PNG that is full-color or makes + * complex use of an alpha channel the transformation is extremely lossy and the + * result may look terrible. + * + * To write a PNG file using the simplified API: + * + * 1) Declare a 'png_image' structure on the stack and memset() it to all zero. + * 2) Initialize the members of the structure that describe the image, setting + * the 'format' member to the format of the image samples. + * 3) Call the appropriate png_image_write... function with a pointer to the + * image and, if necessary, the color-map to write the PNG data. + * + * png_image is a structure that describes the in-memory format of an image + * when it is being read or defines the in-memory format of an image that you + * need to write: + */ +#define PNG_IMAGE_VERSION 1 + +typedef struct png_control *png_controlp; +typedef struct +{ + png_controlp opaque; /* Initialize to NULL, free with png_image_free */ + png_uint_32 version; /* Set to PNG_IMAGE_VERSION */ + png_uint_32 width; /* Image width in pixels (columns) */ + png_uint_32 height; /* Image height in pixels (rows) */ + png_uint_32 format; /* Image format as defined below */ + png_uint_32 flags; /* A bit mask containing informational flags */ + png_uint_32 colormap_entries; + /* Number of entries in the color-map */ + + /* In the event of an error or warning the following field will be set to a + * non-zero value and the 'message' field will contain a '\0' terminated + * string with the libpng error or warning message. If both warnings and + * an error were encountered, only the error is recorded. If there + * are multiple warnings, only the first one is recorded. + * + * The upper 30 bits of this value are reserved, the low two bits contain + * a value as follows: + */ +# define PNG_IMAGE_WARNING 1 +# define PNG_IMAGE_ERROR 2 + /* + * The result is a two bit code such that a value more than 1 indicates + * a failure in the API just called: + * + * 0 - no warning or error + * 1 - warning + * 2 - error + * 3 - error preceded by warning + */ +# define PNG_IMAGE_FAILED(png_cntrl) ((((png_cntrl).warning_or_error)&0x03)>1) + + png_uint_32 warning_or_error; + + char message[64]; +} png_image, *png_imagep; + +/* The samples of the image have one to four channels whose components have + * original values in the range 0 to 1.0: + * + * 1: A single gray or luminance channel (G). + * 2: A gray/luminance channel and an alpha channel (GA). + * 3: Three red, green, blue color channels (RGB). + * 4: Three color channels and an alpha channel (RGBA). + * + * The components are encoded in one of two ways: + * + * a) As a small integer, value 0..255, contained in a single byte. For the + * alpha channel the original value is simply value/255. For the color or + * luminance channels the value is encoded according to the sRGB specification + * and matches the 8-bit format expected by typical display devices. + * + * The color/gray channels are not scaled (pre-multiplied) by the alpha + * channel and are suitable for passing to color management software. + * + * b) As a value in the range 0..65535, contained in a 2-byte integer. All + * channels can be converted to the original value by dividing by 65535; all + * channels are linear. Color channels use the RGB encoding (RGB end-points) of + * the sRGB specification. This encoding is identified by the + * PNG_FORMAT_FLAG_LINEAR flag below. + * + * When the simplified API needs to convert between sRGB and linear colorspaces, + * the actual sRGB transfer curve defined in the sRGB specification (see the + * article at http://en.wikipedia.org/wiki/SRGB) is used, not the gamma=1/2.2 + * approximation used elsewhere in libpng. + * + * When an alpha channel is present it is expected to denote pixel coverage + * of the color or luminance channels and is returned as an associated alpha + * channel: the color/gray channels are scaled (pre-multiplied) by the alpha + * value. + * + * The samples are either contained directly in the image data, between 1 and 8 + * bytes per pixel according to the encoding, or are held in a color-map indexed + * by bytes in the image data. In the case of a color-map the color-map entries + * are individual samples, encoded as above, and the image data has one byte per + * pixel to select the relevant sample from the color-map. + */ + +/* PNG_FORMAT_* + * + * #defines to be used in png_image::format. Each #define identifies a + * particular layout of sample data and, if present, alpha values. There are + * separate defines for each of the two component encodings. + * + * A format is built up using single bit flag values. All combinations are + * valid. Formats can be built up from the flag values or you can use one of + * the predefined values below. When testing formats always use the FORMAT_FLAG + * macros to test for individual features - future versions of the library may + * add new flags. + * + * When reading or writing color-mapped images the format should be set to the + * format of the entries in the color-map then png_image_{read,write}_colormap + * called to read or write the color-map and set the format correctly for the + * image data. Do not set the PNG_FORMAT_FLAG_COLORMAP bit directly! + * + * NOTE: libpng can be built with particular features disabled, if you see + * compiler errors because the definition of one of the following flags has been + * compiled out it is because libpng does not have the required support. It is + * possible, however, for the libpng configuration to enable the format on just + * read or just write; in that case you may see an error at run time. You can + * guard against this by checking for the definition of the appropriate + * "_SUPPORTED" macro, one of: + * + * PNG_SIMPLIFIED_{READ,WRITE}_{BGR,AFIRST}_SUPPORTED + */ +#define PNG_FORMAT_FLAG_ALPHA 0x01U /* format with an alpha channel */ +#define PNG_FORMAT_FLAG_COLOR 0x02U /* color format: otherwise grayscale */ +#define PNG_FORMAT_FLAG_LINEAR 0x04U /* 2 byte channels else 1 byte */ +#define PNG_FORMAT_FLAG_COLORMAP 0x08U /* image data is color-mapped */ + +#ifdef PNG_FORMAT_BGR_SUPPORTED +# define PNG_FORMAT_FLAG_BGR 0x10U /* BGR colors, else order is RGB */ +#endif + +#ifdef PNG_FORMAT_AFIRST_SUPPORTED +# define PNG_FORMAT_FLAG_AFIRST 0x20U /* alpha channel comes first */ +#endif + +/* Commonly used formats have predefined macros. + * + * First the single byte (sRGB) formats: + */ +#define PNG_FORMAT_GRAY 0 +#define PNG_FORMAT_GA PNG_FORMAT_FLAG_ALPHA +#define PNG_FORMAT_AG (PNG_FORMAT_GA|PNG_FORMAT_FLAG_AFIRST) +#define PNG_FORMAT_RGB PNG_FORMAT_FLAG_COLOR +#define PNG_FORMAT_BGR (PNG_FORMAT_FLAG_COLOR|PNG_FORMAT_FLAG_BGR) +#define PNG_FORMAT_RGBA (PNG_FORMAT_RGB|PNG_FORMAT_FLAG_ALPHA) +#define PNG_FORMAT_ARGB (PNG_FORMAT_RGBA|PNG_FORMAT_FLAG_AFIRST) +#define PNG_FORMAT_BGRA (PNG_FORMAT_BGR|PNG_FORMAT_FLAG_ALPHA) +#define PNG_FORMAT_ABGR (PNG_FORMAT_BGRA|PNG_FORMAT_FLAG_AFIRST) + +/* Then the linear 2-byte formats. When naming these "Y" is used to + * indicate a luminance (gray) channel. + */ +#define PNG_FORMAT_LINEAR_Y PNG_FORMAT_FLAG_LINEAR +#define PNG_FORMAT_LINEAR_Y_ALPHA (PNG_FORMAT_FLAG_LINEAR|PNG_FORMAT_FLAG_ALPHA) +#define PNG_FORMAT_LINEAR_RGB (PNG_FORMAT_FLAG_LINEAR|PNG_FORMAT_FLAG_COLOR) +#define PNG_FORMAT_LINEAR_RGB_ALPHA \ + (PNG_FORMAT_FLAG_LINEAR|PNG_FORMAT_FLAG_COLOR|PNG_FORMAT_FLAG_ALPHA) + +/* With color-mapped formats the image data is one byte for each pixel, the byte + * is an index into the color-map which is formatted as above. To obtain a + * color-mapped format it is sufficient just to add the PNG_FOMAT_FLAG_COLORMAP + * to one of the above definitions, or you can use one of the definitions below. + */ +#define PNG_FORMAT_RGB_COLORMAP (PNG_FORMAT_RGB|PNG_FORMAT_FLAG_COLORMAP) +#define PNG_FORMAT_BGR_COLORMAP (PNG_FORMAT_BGR|PNG_FORMAT_FLAG_COLORMAP) +#define PNG_FORMAT_RGBA_COLORMAP (PNG_FORMAT_RGBA|PNG_FORMAT_FLAG_COLORMAP) +#define PNG_FORMAT_ARGB_COLORMAP (PNG_FORMAT_ARGB|PNG_FORMAT_FLAG_COLORMAP) +#define PNG_FORMAT_BGRA_COLORMAP (PNG_FORMAT_BGRA|PNG_FORMAT_FLAG_COLORMAP) +#define PNG_FORMAT_ABGR_COLORMAP (PNG_FORMAT_ABGR|PNG_FORMAT_FLAG_COLORMAP) + +/* PNG_IMAGE macros + * + * These are convenience macros to derive information from a png_image + * structure. The PNG_IMAGE_SAMPLE_ macros return values appropriate to the + * actual image sample values - either the entries in the color-map or the + * pixels in the image. The PNG_IMAGE_PIXEL_ macros return corresponding values + * for the pixels and will always return 1 for color-mapped formats. The + * remaining macros return information about the rows in the image and the + * complete image. + * + * NOTE: All the macros that take a png_image::format parameter are compile time + * constants if the format parameter is, itself, a constant. Therefore these + * macros can be used in array declarations and case labels where required. + * Similarly the macros are also pre-processor constants (sizeof is not used) so + * they can be used in #if tests. + * + * First the information about the samples. + */ +#define PNG_IMAGE_SAMPLE_CHANNELS(fmt)\ + (((fmt)&(PNG_FORMAT_FLAG_COLOR|PNG_FORMAT_FLAG_ALPHA))+1) + /* Return the total number of channels in a given format: 1..4 */ + +#define PNG_IMAGE_SAMPLE_COMPONENT_SIZE(fmt)\ + ((((fmt) & PNG_FORMAT_FLAG_LINEAR) >> 2)+1) + /* Return the size in bytes of a single component of a pixel or color-map + * entry (as appropriate) in the image: 1 or 2. + */ + +#define PNG_IMAGE_SAMPLE_SIZE(fmt)\ + (PNG_IMAGE_SAMPLE_CHANNELS(fmt) * PNG_IMAGE_SAMPLE_COMPONENT_SIZE(fmt)) + /* This is the size of the sample data for one sample. If the image is + * color-mapped it is the size of one color-map entry (and image pixels are + * one byte in size), otherwise it is the size of one image pixel. + */ + +#define PNG_IMAGE_MAXIMUM_COLORMAP_COMPONENTS(fmt)\ + (PNG_IMAGE_SAMPLE_CHANNELS(fmt) * 256) + /* The maximum size of the color-map required by the format expressed in a + * count of components. This can be used to compile-time allocate a + * color-map: + * + * png_uint_16 colormap[PNG_IMAGE_MAXIMUM_COLORMAP_COMPONENTS(linear_fmt)]; + * + * png_byte colormap[PNG_IMAGE_MAXIMUM_COLORMAP_COMPONENTS(sRGB_fmt)]; + * + * Alternatively use the PNG_IMAGE_COLORMAP_SIZE macro below to use the + * information from one of the png_image_begin_read_ APIs and dynamically + * allocate the required memory. + */ + +/* Corresponding information about the pixels */ +#define PNG_IMAGE_PIXEL_(test,fmt)\ + (((fmt)&PNG_FORMAT_FLAG_COLORMAP)?1:test(fmt)) + +#define PNG_IMAGE_PIXEL_CHANNELS(fmt)\ + PNG_IMAGE_PIXEL_(PNG_IMAGE_SAMPLE_CHANNELS,fmt) + /* The number of separate channels (components) in a pixel; 1 for a + * color-mapped image. + */ + +#define PNG_IMAGE_PIXEL_COMPONENT_SIZE(fmt)\ + PNG_IMAGE_PIXEL_(PNG_IMAGE_SAMPLE_COMPONENT_SIZE,fmt) + /* The size, in bytes, of each component in a pixel; 1 for a color-mapped + * image. + */ + +#define PNG_IMAGE_PIXEL_SIZE(fmt) PNG_IMAGE_PIXEL_(PNG_IMAGE_SAMPLE_SIZE,fmt) + /* The size, in bytes, of a complete pixel; 1 for a color-mapped image. */ + +/* Information about the whole row, or whole image */ +#define PNG_IMAGE_ROW_STRIDE(image)\ + (PNG_IMAGE_PIXEL_CHANNELS((image).format) * (image).width) + /* Return the total number of components in a single row of the image; this + * is the minimum 'row stride', the minimum count of components between each + * row. For a color-mapped image this is the minimum number of bytes in a + * row. + */ + +#define PNG_IMAGE_BUFFER_SIZE(image, row_stride)\ + (PNG_IMAGE_PIXEL_COMPONENT_SIZE((image).format)*(image).height*(row_stride)) + /* Return the size, in bytes, of an image buffer given a png_image and a row + * stride - the number of components to leave space for in each row. + */ + +#define PNG_IMAGE_SIZE(image)\ + PNG_IMAGE_BUFFER_SIZE(image, PNG_IMAGE_ROW_STRIDE(image)) + /* Return the size, in bytes, of the image in memory given just a png_image; + * the row stride is the minimum stride required for the image. + */ + +#define PNG_IMAGE_COLORMAP_SIZE(image)\ + (PNG_IMAGE_SAMPLE_SIZE((image).format) * (image).colormap_entries) + /* Return the size, in bytes, of the color-map of this image. If the image + * format is not a color-map format this will return a size sufficient for + * 256 entries in the given format; check PNG_FORMAT_FLAG_COLORMAP if + * you don't want to allocate a color-map in this case. + */ + +/* PNG_IMAGE_FLAG_* + * + * Flags containing additional information about the image are held in the + * 'flags' field of png_image. + */ +#define PNG_IMAGE_FLAG_COLORSPACE_NOT_sRGB 0x01 + /* This indicates the the RGB values of the in-memory bitmap do not + * correspond to the red, green and blue end-points defined by sRGB. + */ + +#define PNG_IMAGE_FLAG_FAST 0x02 + /* On write emphasise speed over compression; the resultant PNG file will be + * larger but will be produced significantly faster, particular for large + * images. Do not use this option for images which will be distributed, only + * used it when producing intermediate files that will be read back in + * repeatedly. For a typical 24-bit image the option will double the read + * speed at the cost of increasing the image size by 25%, however for many + * more compressible images the PNG file can be 10 times larger with only a + * slight speed gain. + */ + +#define PNG_IMAGE_FLAG_16BIT_sRGB 0x04 + /* On read if the image is a 16-bit per component image and there is no gAMA + * or sRGB chunk assume that the components are sRGB encoded. Notice that + * images output by the simplified API always have gamma information; setting + * this flag only affects the interpretation of 16-bit images from an + * external source. It is recommended that the application expose this flag + * to the user; the user can normally easily recognize the difference between + * linear and sRGB encoding. This flag has no effect on write - the data + * passed to the write APIs must have the correct encoding (as defined + * above.) + * + * If the flag is not set (the default) input 16-bit per component data is + * assumed to be linear. + * + * NOTE: the flag can only be set after the png_image_begin_read_ call, + * because that call initializes the 'flags' field. + */ + +#ifdef PNG_SIMPLIFIED_READ_SUPPORTED +/* READ APIs + * --------- + * + * The png_image passed to the read APIs must have been initialized by setting + * the png_controlp field 'opaque' to NULL (or, safer, memset the whole thing.) + */ +#ifdef PNG_STDIO_SUPPORTED +PNG_EXPORT(234, int, png_image_begin_read_from_file, (png_imagep image, + const char *file_name)); + /* The named file is opened for read and the image header is filled in + * from the PNG header in the file. + */ + +PNG_EXPORT(235, int, png_image_begin_read_from_stdio, (png_imagep image, + FILE* file)); + /* The PNG header is read from the stdio FILE object. */ +#endif /* PNG_STDIO_SUPPORTED */ + +PNG_EXPORT(236, int, png_image_begin_read_from_memory, (png_imagep image, + png_const_voidp memory, png_size_t size)); + /* The PNG header is read from the given memory buffer. */ + +PNG_EXPORT(237, int, png_image_finish_read, (png_imagep image, + png_const_colorp background, void *buffer, png_int_32 row_stride, + void *colormap)); + /* Finish reading the image into the supplied buffer and clean up the + * png_image structure. + * + * row_stride is the step, in byte or 2-byte units as appropriate, + * between adjacent rows. A positive stride indicates that the top-most row + * is first in the buffer - the normal top-down arrangement. A negative + * stride indicates that the bottom-most row is first in the buffer. + * + * background need only be supplied if an alpha channel must be removed from + * a png_byte format and the removal is to be done by compositing on a solid + * color; otherwise it may be NULL and any composition will be done directly + * onto the buffer. The value is an sRGB color to use for the background, + * for grayscale output the green channel is used. + * + * background must be supplied when an alpha channel must be removed from a + * single byte color-mapped output format, in other words if: + * + * 1) The original format from png_image_begin_read_from_* had + * PNG_FORMAT_FLAG_ALPHA set. + * 2) The format set by the application does not. + * 3) The format set by the application has PNG_FORMAT_FLAG_COLORMAP set and + * PNG_FORMAT_FLAG_LINEAR *not* set. + * + * For linear output removing the alpha channel is always done by compositing + * on black and background is ignored. + * + * colormap must be supplied when PNG_FORMAT_FLAG_COLORMAP is set. It must + * be at least the size (in bytes) returned by PNG_IMAGE_COLORMAP_SIZE. + * image->colormap_entries will be updated to the actual number of entries + * written to the colormap; this may be less than the original value. + */ + +PNG_EXPORT(238, void, png_image_free, (png_imagep image)); + /* Free any data allocated by libpng in image->opaque, setting the pointer to + * NULL. May be called at any time after the structure is initialized. + */ +#endif /* PNG_SIMPLIFIED_READ_SUPPORTED */ + +#ifdef PNG_SIMPLIFIED_WRITE_SUPPORTED +#ifdef PNG_STDIO_SUPPORTED +/* WRITE APIS + * ---------- + * For write you must initialize a png_image structure to describe the image to + * be written. To do this use memset to set the whole structure to 0 then + * initialize fields describing your image. + * + * version: must be set to PNG_IMAGE_VERSION + * opaque: must be initialized to NULL + * width: image width in pixels + * height: image height in rows + * format: the format of the data (image and color-map) you wish to write + * flags: set to 0 unless one of the defined flags applies; set + * PNG_IMAGE_FLAG_COLORSPACE_NOT_sRGB for color format images where the RGB + * values do not correspond to the colors in sRGB. + * colormap_entries: set to the number of entries in the color-map (0 to 256) + */ +PNG_EXPORT(239, int, png_image_write_to_file, (png_imagep image, + const char *file, int convert_to_8bit, const void *buffer, + png_int_32 row_stride, const void *colormap)); + /* Write the image to the named file. */ + +PNG_EXPORT(240, int, png_image_write_to_stdio, (png_imagep image, FILE *file, + int convert_to_8_bit, const void *buffer, png_int_32 row_stride, + const void *colormap)); + /* Write the image to the given (FILE*). */ + +/* With both write APIs if image is in one of the linear formats with 16-bit + * data then setting convert_to_8_bit will cause the output to be an 8-bit PNG + * gamma encoded according to the sRGB specification, otherwise a 16-bit linear + * encoded PNG file is written. + * + * With color-mapped data formats the colormap parameter point to a color-map + * with at least image->colormap_entries encoded in the specified format. If + * the format is linear the written PNG color-map will be converted to sRGB + * regardless of the convert_to_8_bit flag. + * + * With all APIs row_stride is handled as in the read APIs - it is the spacing + * from one row to the next in component sized units (1 or 2 bytes) and if + * negative indicates a bottom-up row layout in the buffer. + * + * Note that the write API does not support interlacing or sub-8-bit pixels. + */ +#endif /* PNG_STDIO_SUPPORTED */ +#endif /* PNG_SIMPLIFIED_WRITE_SUPPORTED */ +/******************************************************************************* + * END OF SIMPLIFIED API + ******************************************************************************/ + +#ifdef PNG_CHECK_FOR_INVALID_INDEX_SUPPORTED +PNG_EXPORT(242, void, png_set_check_for_invalid_index, + (png_structrp png_ptr, int allowed)); +# ifdef PNG_GET_PALETTE_MAX_SUPPORTED +PNG_EXPORT(243, int, png_get_palette_max, (png_const_structp png_ptr, + png_const_infop info_ptr)); +# endif +#endif /* CHECK_FOR_INVALID_INDEX */ + +/******************************************************************************* + * IMPLEMENTATION OPTIONS + ******************************************************************************* + * + * Support for arbitrary implementation-specific optimizations. The API allows + * particular options to be turned on or off. 'Option' is the number of the + * option and 'onoff' is 0 (off) or non-0 (on). The value returned is given + * by the PNG_OPTION_ defines below. + * + * HARDWARE: normally hardware capabilites, such as the Intel SSE instructions, + * are detected at run time, however sometimes it may be impossible + * to do this in user mode, in which case it is necessary to discover + * the capabilities in an OS specific way. Such capabilities are + * listed here when libpng has support for them and must be turned + * ON by the application if present. + * + * SOFTWARE: sometimes software optimizations actually result in performance + * decrease on some architectures or systems, or with some sets of + * PNG images. 'Software' options allow such optimizations to be + * selected at run time. + */ +#ifdef PNG_SET_OPTION_SUPPORTED +#ifdef PNG_ARM_NEON_API_SUPPORTED +# define PNG_ARM_NEON 0 /* HARDWARE: ARM Neon SIMD instructions supported */ +#endif +#define PNG_MAXIMUM_INFLATE_WINDOW 2 /* SOFTWARE: force maximum window */ +#define PNG_SKIP_sRGB_CHECK_PROFILE 4 /* SOFTWARE: Check ICC profile for sRGB */ +#define PNG_OPTION_NEXT 6 /* Next option - numbers must be even */ + +/* Return values: NOTE: there are four values and 'off' is *not* zero */ +#define PNG_OPTION_UNSET 0 /* Unset - defaults to off */ +#define PNG_OPTION_INVALID 1 /* Option number out of range */ +#define PNG_OPTION_OFF 2 +#define PNG_OPTION_ON 3 + +PNG_EXPORT(244, int, png_set_option, (png_structrp png_ptr, int option, + int onoff)); +#endif + +/******************************************************************************* + * END OF HARDWARE AND SOFTWARE OPTIONS + ******************************************************************************/ + +/* Maintainer: Put new public prototypes here ^, in libpng.3, and project + * defs, scripts/pnglibconf.h, and scripts/pnglibconf.h.prebuilt + */ + +/* The last ordinal number (this is the *last* one already used; the next + * one to use is one more than this.) Maintainer, remember to add an entry to + * scripts/symbols.def as well. + */ +#ifdef PNG_EXPORT_LAST_ORDINAL + PNG_EXPORT_LAST_ORDINAL(244); +#endif + +#ifdef __cplusplus +} +#endif + +#endif /* PNG_VERSION_INFO_ONLY */ +/* Do not put anything past this line */ +#endif /* PNG_H */ diff --git a/png/pngbar.jpg b/png/pngbar.jpg new file mode 100644 index 0000000..70ba8d8 Binary files /dev/null and b/png/pngbar.jpg differ diff --git a/png/pngbar.png b/png/pngbar.png new file mode 100644 index 0000000..49798c8 Binary files /dev/null and b/png/pngbar.png differ diff --git a/png/pngconf.h b/png/pngconf.h new file mode 100644 index 0000000..72ec81f --- /dev/null +++ b/png/pngconf.h @@ -0,0 +1,644 @@ + +/* pngconf.h - machine configurable file for libpng + * + * libpng version 1.6.12 - June 12, 2014 + * + * Copyright (c) 1998-2014 Glenn Randers-Pehrson + * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) + * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) + * + * This code is released under the libpng license. + * For conditions of distribution and use, see the disclaimer + * and license in png.h + * + */ + +/* Any machine specific code is near the front of this file, so if you + * are configuring libpng for a machine, you may want to read the section + * starting here down to where it starts to typedef png_color, png_text, + * and png_info. + */ + +#ifndef PNGCONF_H +#define PNGCONF_H + +/* To do: Do all of this in scripts/pnglibconf.dfa */ +#ifdef PNG_SAFE_LIMITS_SUPPORTED +# ifdef PNG_USER_WIDTH_MAX +# undef PNG_USER_WIDTH_MAX +# define PNG_USER_WIDTH_MAX 1000000L +# endif +# ifdef PNG_USER_HEIGHT_MAX +# undef PNG_USER_HEIGHT_MAX +# define PNG_USER_HEIGHT_MAX 1000000L +# endif +# ifdef PNG_USER_CHUNK_MALLOC_MAX +# undef PNG_USER_CHUNK_MALLOC_MAX +# define PNG_USER_CHUNK_MALLOC_MAX 4000000L +# endif +# ifdef PNG_USER_CHUNK_CACHE_MAX +# undef PNG_USER_CHUNK_CACHE_MAX +# define PNG_USER_CHUNK_CACHE_MAX 128 +# endif +#endif + +#ifndef PNG_BUILDING_SYMBOL_TABLE /* else includes may cause problems */ + +/* From libpng 1.6.0 libpng requires an ANSI X3.159-1989 ("ISOC90") compliant C + * compiler for correct compilation. The following header files are required by + * the standard. If your compiler doesn't provide these header files, or they + * do not match the standard, you will need to provide/improve them. + */ +#include +#include + +/* Library header files. These header files are all defined by ISOC90; libpng + * expects conformant implementations, however, an ISOC90 conformant system need + * not provide these header files if the functionality cannot be implemented. + * In this case it will be necessary to disable the relevant parts of libpng in + * the build of pnglibconf.h. + * + * Prior to 1.6.0 string.h was included here; the API changes in 1.6.0 to not + * include this unnecessary header file. + */ + +#ifdef PNG_STDIO_SUPPORTED + /* Required for the definition of FILE: */ +# include +#endif + +#ifdef PNG_SETJMP_SUPPORTED + /* Required for the definition of jmp_buf and the declaration of longjmp: */ +# include +#endif + +#ifdef PNG_CONVERT_tIME_SUPPORTED + /* Required for struct tm: */ +# include +#endif + +#endif /* PNG_BUILDING_SYMBOL_TABLE */ + +/* Prior to 1.6.0 it was possible to turn off 'const' in declarations using + * PNG_NO_CONST; this is no longer supported except for data declarations which + * apparently still cause problems in 2011 on some compilers. + */ +#define PNG_CONST const /* backward compatibility only */ + +/* This controls optimization of the reading of 16 and 32 bit values + * from PNG files. It can be set on a per-app-file basis - it + * just changes whether a macro is used when the function is called. + * The library builder sets the default; if read functions are not + * built into the library the macro implementation is forced on. + */ +#ifndef PNG_READ_INT_FUNCTIONS_SUPPORTED +# define PNG_USE_READ_MACROS +#endif +#if !defined(PNG_NO_USE_READ_MACROS) && !defined(PNG_USE_READ_MACROS) +# if PNG_DEFAULT_READ_MACROS +# define PNG_USE_READ_MACROS +# endif +#endif + +/* COMPILER SPECIFIC OPTIONS. + * + * These options are provided so that a variety of difficult compilers + * can be used. Some are fixed at build time (e.g. PNG_API_RULE + * below) but still have compiler specific implementations, others + * may be changed on a per-file basis when compiling against libpng. + */ + +/* The PNGARG macro was used in versions of libpng prior to 1.6.0 to protect + * against legacy (pre ISOC90) compilers that did not understand function + * prototypes. It is not required for modern C compilers. + */ +#ifndef PNGARG +# define PNGARG(arglist) arglist +#endif + +/* Function calling conventions. + * ============================= + * Normally it is not necessary to specify to the compiler how to call + * a function - it just does it - however on x86 systems derived from + * Microsoft and Borland C compilers ('IBM PC', 'DOS', 'Windows' systems + * and some others) there are multiple ways to call a function and the + * default can be changed on the compiler command line. For this reason + * libpng specifies the calling convention of every exported function and + * every function called via a user supplied function pointer. This is + * done in this file by defining the following macros: + * + * PNGAPI Calling convention for exported functions. + * PNGCBAPI Calling convention for user provided (callback) functions. + * PNGCAPI Calling convention used by the ANSI-C library (required + * for longjmp callbacks and sometimes used internally to + * specify the calling convention for zlib). + * + * These macros should never be overridden. If it is necessary to + * change calling convention in a private build this can be done + * by setting PNG_API_RULE (which defaults to 0) to one of the values + * below to select the correct 'API' variants. + * + * PNG_API_RULE=0 Use PNGCAPI - the 'C' calling convention - throughout. + * This is correct in every known environment. + * PNG_API_RULE=1 Use the operating system convention for PNGAPI and + * the 'C' calling convention (from PNGCAPI) for + * callbacks (PNGCBAPI). This is no longer required + * in any known environment - if it has to be used + * please post an explanation of the problem to the + * libpng mailing list. + * + * These cases only differ if the operating system does not use the C + * calling convention, at present this just means the above cases + * (x86 DOS/Windows sytems) and, even then, this does not apply to + * Cygwin running on those systems. + * + * Note that the value must be defined in pnglibconf.h so that what + * the application uses to call the library matches the conventions + * set when building the library. + */ + +/* Symbol export + * ============= + * When building a shared library it is almost always necessary to tell + * the compiler which symbols to export. The png.h macro 'PNG_EXPORT' + * is used to mark the symbols. On some systems these symbols can be + * extracted at link time and need no special processing by the compiler, + * on other systems the symbols are flagged by the compiler and just + * the declaration requires a special tag applied (unfortunately) in a + * compiler dependent way. Some systems can do either. + * + * A small number of older systems also require a symbol from a DLL to + * be flagged to the program that calls it. This is a problem because + * we do not know in the header file included by application code that + * the symbol will come from a shared library, as opposed to a statically + * linked one. For this reason the application must tell us by setting + * the magic flag PNG_USE_DLL to turn on the special processing before + * it includes png.h. + * + * Four additional macros are used to make this happen: + * + * PNG_IMPEXP The magic (if any) to cause a symbol to be exported from + * the build or imported if PNG_USE_DLL is set - compiler + * and system specific. + * + * PNG_EXPORT_TYPE(type) A macro that pre or appends PNG_IMPEXP to + * 'type', compiler specific. + * + * PNG_DLL_EXPORT Set to the magic to use during a libpng build to + * make a symbol exported from the DLL. Not used in the + * public header files; see pngpriv.h for how it is used + * in the libpng build. + * + * PNG_DLL_IMPORT Set to the magic to force the libpng symbols to come + * from a DLL - used to define PNG_IMPEXP when + * PNG_USE_DLL is set. + */ + +/* System specific discovery. + * ========================== + * This code is used at build time to find PNG_IMPEXP, the API settings + * and PNG_EXPORT_TYPE(), it may also set a macro to indicate the DLL + * import processing is possible. On Windows systems it also sets + * compiler-specific macros to the values required to change the calling + * conventions of the various functions. + */ +#if defined(_Windows) || defined(_WINDOWS) || defined(WIN32) ||\ + defined(_WIN32) || defined(__WIN32__) || defined(__CYGWIN__) + /* Windows system (DOS doesn't support DLLs). Includes builds under Cygwin or + * MinGW on any architecture currently supported by Windows. Also includes + * Watcom builds but these need special treatment because they are not + * compatible with GCC or Visual C because of different calling conventions. + */ +# if PNG_API_RULE == 2 + /* If this line results in an error, either because __watcall is not + * understood or because of a redefine just below you cannot use *this* + * build of the library with the compiler you are using. *This* build was + * build using Watcom and applications must also be built using Watcom! + */ +# define PNGCAPI __watcall +# endif + +# if defined(__GNUC__) || (defined(_MSC_VER) && (_MSC_VER >= 800)) +# define PNGCAPI __cdecl +# if PNG_API_RULE == 1 + /* If this line results in an error __stdcall is not understood and + * PNG_API_RULE should not have been set to '1'. + */ +# define PNGAPI __stdcall +# endif +# else + /* An older compiler, or one not detected (erroneously) above, + * if necessary override on the command line to get the correct + * variants for the compiler. + */ +# ifndef PNGCAPI +# define PNGCAPI _cdecl +# endif +# if PNG_API_RULE == 1 && !defined(PNGAPI) +# define PNGAPI _stdcall +# endif +# endif /* compiler/api */ + + /* NOTE: PNGCBAPI always defaults to PNGCAPI. */ + +# if defined(PNGAPI) && !defined(PNG_USER_PRIVATEBUILD) +# error "PNG_USER_PRIVATEBUILD must be defined if PNGAPI is changed" +# endif + +# if (defined(_MSC_VER) && _MSC_VER < 800) ||\ + (defined(__BORLANDC__) && __BORLANDC__ < 0x500) + /* older Borland and MSC + * compilers used '__export' and required this to be after + * the type. + */ +# ifndef PNG_EXPORT_TYPE +# define PNG_EXPORT_TYPE(type) type PNG_IMPEXP +# endif +# define PNG_DLL_EXPORT __export +# else /* newer compiler */ +# define PNG_DLL_EXPORT __declspec(dllexport) +# ifndef PNG_DLL_IMPORT +# define PNG_DLL_IMPORT __declspec(dllimport) +# endif +# endif /* compiler */ + +#else /* !Windows */ +# if (defined(__IBMC__) || defined(__IBMCPP__)) && defined(__OS2__) +# define PNGAPI _System +# else /* !Windows/x86 && !OS/2 */ + /* Use the defaults, or define PNG*API on the command line (but + * this will have to be done for every compile!) + */ +# endif /* other system, !OS/2 */ +#endif /* !Windows/x86 */ + +/* Now do all the defaulting . */ +#ifndef PNGCAPI +# define PNGCAPI +#endif +#ifndef PNGCBAPI +# define PNGCBAPI PNGCAPI +#endif +#ifndef PNGAPI +# define PNGAPI PNGCAPI +#endif + +/* PNG_IMPEXP may be set on the compilation system command line or (if not set) + * then in an internal header file when building the library, otherwise (when + * using the library) it is set here. + */ +#ifndef PNG_IMPEXP +# if defined(PNG_USE_DLL) && defined(PNG_DLL_IMPORT) + /* This forces use of a DLL, disallowing static linking */ +# define PNG_IMPEXP PNG_DLL_IMPORT +# endif + +# ifndef PNG_IMPEXP +# define PNG_IMPEXP +# endif +#endif + +/* In 1.5.2 the definition of PNG_FUNCTION has been changed to always treat + * 'attributes' as a storage class - the attributes go at the start of the + * function definition, and attributes are always appended regardless of the + * compiler. This considerably simplifies these macros but may cause problems + * if any compilers both need function attributes and fail to handle them as + * a storage class (this is unlikely.) + */ +#ifndef PNG_FUNCTION +# define PNG_FUNCTION(type, name, args, attributes) attributes type name args +#endif + +#ifndef PNG_EXPORT_TYPE +# define PNG_EXPORT_TYPE(type) PNG_IMPEXP type +#endif + + /* The ordinal value is only relevant when preprocessing png.h for symbol + * table entries, so we discard it here. See the .dfn files in the + * scripts directory. + */ +#ifndef PNG_EXPORTA + +# define PNG_EXPORTA(ordinal, type, name, args, attributes)\ + PNG_FUNCTION(PNG_EXPORT_TYPE(type),(PNGAPI name),PNGARG(args), \ + extern attributes) +#endif + +/* ANSI-C (C90) does not permit a macro to be invoked with an empty argument, + * so make something non-empty to satisfy the requirement: + */ +#define PNG_EMPTY /*empty list*/ + +#define PNG_EXPORT(ordinal, type, name, args)\ + PNG_EXPORTA(ordinal, type, name, args, PNG_EMPTY) + +/* Use PNG_REMOVED to comment out a removed interface. */ +#ifndef PNG_REMOVED +# define PNG_REMOVED(ordinal, type, name, args, attributes) +#endif + +#ifndef PNG_CALLBACK +# define PNG_CALLBACK(type, name, args) type (PNGCBAPI name) PNGARG(args) +#endif + +/* Support for compiler specific function attributes. These are used + * so that where compiler support is available incorrect use of API + * functions in png.h will generate compiler warnings. + * + * Added at libpng-1.2.41. + */ + +#ifndef PNG_NO_PEDANTIC_WARNINGS +# ifndef PNG_PEDANTIC_WARNINGS_SUPPORTED +# define PNG_PEDANTIC_WARNINGS_SUPPORTED +# endif +#endif + +#ifdef PNG_PEDANTIC_WARNINGS_SUPPORTED + /* Support for compiler specific function attributes. These are used + * so that where compiler support is available, incorrect use of API + * functions in png.h will generate compiler warnings. Added at libpng + * version 1.2.41. Disabling these removes the warnings but may also produce + * less efficient code. + */ +# if defined(__clang__) && defined(__has_attribute) + /* Clang defines both __clang__ and __GNUC__. Check __clang__ first. */ +# if !defined(PNG_USE_RESULT) && __has_attribute(__warn_unused_result__) +# define PNG_USE_RESULT __attribute__((__warn_unused_result__)) +# endif +# if !defined(PNG_NORETURN) && __has_attribute(__noreturn__) +# define PNG_NORETURN __attribute__((__noreturn__)) +# endif +# if !defined(PNG_ALLOCATED) && __has_attribute(__malloc__) +# define PNG_ALLOCATED __attribute__((__malloc__)) +# endif +# if !defined(PNG_DEPRECATED) && __has_attribute(__deprecated__) +# define PNG_DEPRECATED __attribute__((__deprecated__)) +# endif +# if !defined(PNG_PRIVATE) +# ifdef __has_extension +# if __has_extension(attribute_unavailable_with_message) +# define PNG_PRIVATE __attribute__((__unavailable__(\ + "This function is not exported by libpng."))) +# endif +# endif +# endif +# ifndef PNG_RESTRICT +# define PNG_RESTRICT __restrict +# endif + +# elif defined(__GNUC__) +# ifndef PNG_USE_RESULT +# define PNG_USE_RESULT __attribute__((__warn_unused_result__)) +# endif +# ifndef PNG_NORETURN +# define PNG_NORETURN __attribute__((__noreturn__)) +# endif +# if __GNUC__ >= 3 +# ifndef PNG_ALLOCATED +# define PNG_ALLOCATED __attribute__((__malloc__)) +# endif +# ifndef PNG_DEPRECATED +# define PNG_DEPRECATED __attribute__((__deprecated__)) +# endif +# ifndef PNG_PRIVATE +# if 0 /* Doesn't work so we use deprecated instead*/ +# define PNG_PRIVATE \ + __attribute__((warning("This function is not exported by libpng."))) +# else +# define PNG_PRIVATE \ + __attribute__((__deprecated__)) +# endif +# endif +# if ((__GNUC__ > 3) || !defined(__GNUC_MINOR__) || (__GNUC_MINOR__ >= 1)) +# ifndef PNG_RESTRICT +# define PNG_RESTRICT __restrict +# endif +# endif /* __GNUC__.__GNUC_MINOR__ > 3.0 */ +# endif /* __GNUC__ >= 3 */ + +# elif defined(_MSC_VER) && (_MSC_VER >= 1300) +# ifndef PNG_USE_RESULT +# define PNG_USE_RESULT /* not supported */ +# endif +# ifndef PNG_NORETURN +# define PNG_NORETURN __declspec(noreturn) +# endif +# ifndef PNG_ALLOCATED +# if (_MSC_VER >= 1400) +# define PNG_ALLOCATED __declspec(restrict) +# endif +# endif +# ifndef PNG_DEPRECATED +# define PNG_DEPRECATED __declspec(deprecated) +# endif +# ifndef PNG_PRIVATE +# define PNG_PRIVATE __declspec(deprecated) +# endif +# ifndef PNG_RESTRICT +# if (_MSC_VER >= 1400) +# define PNG_RESTRICT __restrict +# endif +# endif + +# elif defined(__WATCOMC__) +# ifndef PNG_RESTRICT +# define PNG_RESTRICT __restrict +# endif +# endif +#endif /* PNG_PEDANTIC_WARNINGS */ + +#ifndef PNG_DEPRECATED +# define PNG_DEPRECATED /* Use of this function is deprecated */ +#endif +#ifndef PNG_USE_RESULT +# define PNG_USE_RESULT /* The result of this function must be checked */ +#endif +#ifndef PNG_NORETURN +# define PNG_NORETURN /* This function does not return */ +#endif +#ifndef PNG_ALLOCATED +# define PNG_ALLOCATED /* The result of the function is new memory */ +#endif +#ifndef PNG_PRIVATE +# define PNG_PRIVATE /* This is a private libpng function */ +#endif +#ifndef PNG_RESTRICT +# define PNG_RESTRICT /* The C99 "restrict" feature */ +#endif + +#ifndef PNG_FP_EXPORT /* A floating point API. */ +# ifdef PNG_FLOATING_POINT_SUPPORTED +# define PNG_FP_EXPORT(ordinal, type, name, args)\ + PNG_EXPORT(ordinal, type, name, args); +# else /* No floating point APIs */ +# define PNG_FP_EXPORT(ordinal, type, name, args) +# endif +#endif +#ifndef PNG_FIXED_EXPORT /* A fixed point API. */ +# ifdef PNG_FIXED_POINT_SUPPORTED +# define PNG_FIXED_EXPORT(ordinal, type, name, args)\ + PNG_EXPORT(ordinal, type, name, args); +# else /* No fixed point APIs */ +# define PNG_FIXED_EXPORT(ordinal, type, name, args) +# endif +#endif + +#ifndef PNG_BUILDING_SYMBOL_TABLE +/* Some typedefs to get us started. These should be safe on most of the common + * platforms. + * + * png_uint_32 and png_int_32 may, currently, be larger than required to hold a + * 32-bit value however this is not normally advisable. + * + * png_uint_16 and png_int_16 should always be two bytes in size - this is + * verified at library build time. + * + * png_byte must always be one byte in size. + * + * The checks below use constants from limits.h, as defined by the ISOC90 + * standard. + */ +#if CHAR_BIT == 8 && UCHAR_MAX == 255 + typedef unsigned char png_byte; +#else +# error "libpng requires 8 bit bytes" +#endif + +#if INT_MIN == -32768 && INT_MAX == 32767 + typedef int png_int_16; +#elif SHRT_MIN == -32768 && SHRT_MAX == 32767 + typedef short png_int_16; +#else +# error "libpng requires a signed 16 bit type" +#endif + +#if UINT_MAX == 65535 + typedef unsigned int png_uint_16; +#elif USHRT_MAX == 65535 + typedef unsigned short png_uint_16; +#else +# error "libpng requires an unsigned 16 bit type" +#endif + +#if INT_MIN < -2147483646 && INT_MAX > 2147483646 + typedef int png_int_32; +#elif LONG_MIN < -2147483646 && LONG_MAX > 2147483646 + typedef long int png_int_32; +#else +# error "libpng requires a signed 32 bit (or more) type" +#endif + +#if UINT_MAX > 4294967294 + typedef unsigned int png_uint_32; +#elif ULONG_MAX > 4294967294 + typedef unsigned long int png_uint_32; +#else +# error "libpng requires an unsigned 32 bit (or more) type" +#endif + +/* Prior to 1.6.0 it was possible to disable the use of size_t, 1.6.0, however, + * requires an ISOC90 compiler and relies on consistent behavior of sizeof. + */ +typedef size_t png_size_t; +typedef ptrdiff_t png_ptrdiff_t; + +/* libpng needs to know the maximum value of 'size_t' and this controls the + * definition of png_alloc_size_t, below. This maximum value of size_t limits + * but does not control the maximum allocations the library makes - there is + * direct application control of this through png_set_user_limits(). + */ +#ifndef PNG_SMALL_SIZE_T + /* Compiler specific tests for systems where size_t is known to be less than + * 32 bits (some of these systems may no longer work because of the lack of + * 'far' support; see above.) + */ +# if (defined(__TURBOC__) && !defined(__FLAT__)) ||\ + (defined(_MSC_VER) && defined(MAXSEG_64K)) +# define PNG_SMALL_SIZE_T +# endif +#endif + +/* png_alloc_size_t is guaranteed to be no smaller than png_size_t, and no + * smaller than png_uint_32. Casts from png_size_t or png_uint_32 to + * png_alloc_size_t are not necessary; in fact, it is recommended not to use + * them at all so that the compiler can complain when something turns out to be + * problematic. + * + * Casts in the other direction (from png_alloc_size_t to png_size_t or + * png_uint_32) should be explicitly applied; however, we do not expect to + * encounter practical situations that require such conversions. + * + * PNG_SMALL_SIZE_T must be defined if the maximum value of size_t is less than + * 4294967295 - i.e. less than the maximum value of png_uint_32. + */ +#ifdef PNG_SMALL_SIZE_T + typedef png_uint_32 png_alloc_size_t; +#else + typedef png_size_t png_alloc_size_t; +#endif + +/* Prior to 1.6.0 libpng offered limited support for Microsoft C compiler + * implementations of Intel CPU specific support of user-mode segmented address + * spaces, where 16-bit pointers address more than 65536 bytes of memory using + * separate 'segment' registers. The implementation requires two different + * types of pointer (only one of which includes the segment value.) + * + * If required this support is available in version 1.2 of libpng and may be + * available in versions through 1.5, although the correctness of the code has + * not been verified recently. + */ + +/* Typedef for floating-point numbers that are converted to fixed-point with a + * multiple of 100,000, e.g., gamma + */ +typedef png_int_32 png_fixed_point; + +/* Add typedefs for pointers */ +typedef void * png_voidp; +typedef const void * png_const_voidp; +typedef png_byte * png_bytep; +typedef const png_byte * png_const_bytep; +typedef png_uint_32 * png_uint_32p; +typedef const png_uint_32 * png_const_uint_32p; +typedef png_int_32 * png_int_32p; +typedef const png_int_32 * png_const_int_32p; +typedef png_uint_16 * png_uint_16p; +typedef const png_uint_16 * png_const_uint_16p; +typedef png_int_16 * png_int_16p; +typedef const png_int_16 * png_const_int_16p; +typedef char * png_charp; +typedef const char * png_const_charp; +typedef png_fixed_point * png_fixed_point_p; +typedef const png_fixed_point * png_const_fixed_point_p; +typedef png_size_t * png_size_tp; +typedef const png_size_t * png_const_size_tp; + +#ifdef PNG_STDIO_SUPPORTED +typedef FILE * png_FILE_p; +#endif + +#ifdef PNG_FLOATING_POINT_SUPPORTED +typedef double * png_doublep; +typedef const double * png_const_doublep; +#endif + +/* Pointers to pointers; i.e. arrays */ +typedef png_byte * * png_bytepp; +typedef png_uint_32 * * png_uint_32pp; +typedef png_int_32 * * png_int_32pp; +typedef png_uint_16 * * png_uint_16pp; +typedef png_int_16 * * png_int_16pp; +typedef const char * * png_const_charpp; +typedef char * * png_charpp; +typedef png_fixed_point * * png_fixed_point_pp; +#ifdef PNG_FLOATING_POINT_SUPPORTED +typedef double * * png_doublepp; +#endif + +/* Pointers to pointers to pointers; i.e., pointer to array */ +typedef char * * * png_charppp; + +#endif /* PNG_BUILDING_SYMBOL_TABLE */ + +#endif /* PNGCONF_H */ diff --git a/png/pngdebug.h b/png/pngdebug.h new file mode 100644 index 0000000..b43c59c --- /dev/null +++ b/png/pngdebug.h @@ -0,0 +1,154 @@ + +/* pngdebug.h - Debugging macros for libpng, also used in pngtest.c + * + * Copyright (c) 1998-2013 Glenn Randers-Pehrson + * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) + * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) + * + * Last changed in libpng 1.6.8 [December 19, 2013] + * + * This code is released under the libpng license. + * For conditions of distribution and use, see the disclaimer + * and license in png.h + */ + +/* Define PNG_DEBUG at compile time for debugging information. Higher + * numbers for PNG_DEBUG mean more debugging information. This has + * only been added since version 0.95 so it is not implemented throughout + * libpng yet, but more support will be added as needed. + * + * png_debug[1-2]?(level, message ,arg{0-2}) + * Expands to a statement (either a simple expression or a compound + * do..while(0) statement) that outputs a message with parameter + * substitution if PNG_DEBUG is defined to 2 or more. If PNG_DEBUG + * is undefined, 0 or 1 every png_debug expands to a simple expression + * (actually ((void)0)). + * + * level: level of detail of message, starting at 0. A level 'n' + * message is preceded by 'n' 3-space indentations (not implemented + * on Microsoft compilers unless PNG_DEBUG_FILE is also + * defined, to allow debug DLL compilation with no standard IO). + * message: a printf(3) style text string. A trailing '\n' is added + * to the message. + * arg: 0 to 2 arguments for printf(3) style substitution in message. + */ +#ifndef PNGDEBUG_H +#define PNGDEBUG_H +/* These settings control the formatting of messages in png.c and pngerror.c */ +/* Moved to pngdebug.h at 1.5.0 */ +# ifndef PNG_LITERAL_SHARP +# define PNG_LITERAL_SHARP 0x23 +# endif +# ifndef PNG_LITERAL_LEFT_SQUARE_BRACKET +# define PNG_LITERAL_LEFT_SQUARE_BRACKET 0x5b +# endif +# ifndef PNG_LITERAL_RIGHT_SQUARE_BRACKET +# define PNG_LITERAL_RIGHT_SQUARE_BRACKET 0x5d +# endif +# ifndef PNG_STRING_NEWLINE +# define PNG_STRING_NEWLINE "\n" +# endif + +#ifdef PNG_DEBUG +# if (PNG_DEBUG > 0) +# if !defined(PNG_DEBUG_FILE) && defined(_MSC_VER) +# include +# if (PNG_DEBUG > 1) +# ifndef _DEBUG +# define _DEBUG +# endif +# ifndef png_debug +# define png_debug(l,m) _RPT0(_CRT_WARN,m PNG_STRING_NEWLINE) +# endif +# ifndef png_debug1 +# define png_debug1(l,m,p1) _RPT1(_CRT_WARN,m PNG_STRING_NEWLINE,p1) +# endif +# ifndef png_debug2 +# define png_debug2(l,m,p1,p2) \ + _RPT2(_CRT_WARN,m PNG_STRING_NEWLINE,p1,p2) +# endif +# endif +# else /* PNG_DEBUG_FILE || !_MSC_VER */ +# ifndef PNG_STDIO_SUPPORTED +# include /* not included yet */ +# endif +# ifndef PNG_DEBUG_FILE +# define PNG_DEBUG_FILE stderr +# endif /* PNG_DEBUG_FILE */ + +# if (PNG_DEBUG > 1) +# ifdef __STDC__ +# ifndef png_debug +# define png_debug(l,m) \ + do { \ + int num_tabs=l; \ + fprintf(PNG_DEBUG_FILE,"%s" m PNG_STRING_NEWLINE,(num_tabs==1 ? " " : \ + (num_tabs==2 ? " " : (num_tabs>2 ? " " : "")))); \ + } while (0) +# endif +# ifndef png_debug1 +# define png_debug1(l,m,p1) \ + do { \ + int num_tabs=l; \ + fprintf(PNG_DEBUG_FILE,"%s" m PNG_STRING_NEWLINE,(num_tabs==1 ? " " : \ + (num_tabs==2 ? " " : (num_tabs>2 ? " " : ""))),p1); \ + } while (0) +# endif +# ifndef png_debug2 +# define png_debug2(l,m,p1,p2) \ + do { \ + int num_tabs=l; \ + fprintf(PNG_DEBUG_FILE,"%s" m PNG_STRING_NEWLINE,(num_tabs==1 ? " " : \ + (num_tabs==2 ? " " : (num_tabs>2 ? " " : ""))),p1,p2);\ + } while (0) +# endif +# else /* __STDC __ */ +# ifndef png_debug +# define png_debug(l,m) \ + do { \ + int num_tabs=l; \ + char format[256]; \ + snprintf(format,256,"%s%s%s",(num_tabs==1 ? "\t" : \ + (num_tabs==2 ? "\t\t":(num_tabs>2 ? "\t\t\t":""))), \ + m,PNG_STRING_NEWLINE); \ + fprintf(PNG_DEBUG_FILE,format); \ + } while (0) +# endif +# ifndef png_debug1 +# define png_debug1(l,m,p1) \ + do { \ + int num_tabs=l; \ + char format[256]; \ + snprintf(format,256,"%s%s%s",(num_tabs==1 ? "\t" : \ + (num_tabs==2 ? "\t\t":(num_tabs>2 ? "\t\t\t":""))), \ + m,PNG_STRING_NEWLINE); \ + fprintf(PNG_DEBUG_FILE,format,p1); \ + } while (0) +# endif +# ifndef png_debug2 +# define png_debug2(l,m,p1,p2) \ + do { \ + int num_tabs=l; \ + char format[256]; \ + snprintf(format,256,"%s%s%s",(num_tabs==1 ? "\t" : \ + (num_tabs==2 ? "\t\t":(num_tabs>2 ? "\t\t\t":""))), \ + m,PNG_STRING_NEWLINE); \ + fprintf(PNG_DEBUG_FILE,format,p1,p2); \ + } while (0) +# endif +# endif /* __STDC __ */ +# endif /* (PNG_DEBUG > 1) */ + +# endif /* _MSC_VER */ +# endif /* (PNG_DEBUG > 0) */ +#endif /* PNG_DEBUG */ +#ifndef png_debug +# define png_debug(l, m) ((void)0) +#endif +#ifndef png_debug1 +# define png_debug1(l, m, p1) ((void)0) +#endif +#ifndef png_debug2 +# define png_debug2(l, m, p1, p2) ((void)0) +#endif +#endif /* PNGDEBUG_H */ diff --git a/png/pngerror.c b/png/pngerror.c new file mode 100644 index 0000000..f21f4dd --- /dev/null +++ b/png/pngerror.c @@ -0,0 +1,961 @@ + +/* pngerror.c - stub functions for i/o and memory allocation + * + * Last changed in libpng 1.6.11 [June 12, 2014] + * Copyright (c) 1998-2014 Glenn Randers-Pehrson + * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) + * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) + * + * This code is released under the libpng license. + * For conditions of distribution and use, see the disclaimer + * and license in png.h + * + * This file provides a location for all error handling. Users who + * need special error handling are expected to write replacement functions + * and use png_set_error_fn() to use those functions. See the instructions + * at each function. + */ + +#include "pngpriv.h" + +#if defined(PNG_READ_SUPPORTED) || defined(PNG_WRITE_SUPPORTED) + +static PNG_FUNCTION(void, png_default_error,PNGARG((png_const_structrp png_ptr, + png_const_charp error_message)),PNG_NORETURN); + +#ifdef PNG_WARNINGS_SUPPORTED +static void /* PRIVATE */ +png_default_warning PNGARG((png_const_structrp png_ptr, + png_const_charp warning_message)); +#endif /* PNG_WARNINGS_SUPPORTED */ + +/* This function is called whenever there is a fatal error. This function + * should not be changed. If there is a need to handle errors differently, + * you should supply a replacement error function and use png_set_error_fn() + * to replace the error function at run-time. + */ +#ifdef PNG_ERROR_TEXT_SUPPORTED +PNG_FUNCTION(void,PNGAPI +png_error,(png_const_structrp png_ptr, png_const_charp error_message), + PNG_NORETURN) +{ +#ifdef PNG_ERROR_NUMBERS_SUPPORTED + char msg[16]; + if (png_ptr != NULL) + { + if (png_ptr->flags& + (PNG_FLAG_STRIP_ERROR_NUMBERS|PNG_FLAG_STRIP_ERROR_TEXT)) + { + if (*error_message == PNG_LITERAL_SHARP) + { + /* Strip "#nnnn " from beginning of error message. */ + int offset; + for (offset = 1; offset<15; offset++) + if (error_message[offset] == ' ') + break; + + if (png_ptr->flags&PNG_FLAG_STRIP_ERROR_TEXT) + { + int i; + for (i = 0; i < offset - 1; i++) + msg[i] = error_message[i + 1]; + msg[i - 1] = '\0'; + error_message = msg; + } + + else + error_message += offset; + } + + else + { + if (png_ptr->flags&PNG_FLAG_STRIP_ERROR_TEXT) + { + msg[0] = '0'; + msg[1] = '\0'; + error_message = msg; + } + } + } + } +#endif + if (png_ptr != NULL && png_ptr->error_fn != NULL) + (*(png_ptr->error_fn))(png_constcast(png_structrp,png_ptr), + error_message); + + /* If the custom handler doesn't exist, or if it returns, + use the default handler, which will not return. */ + png_default_error(png_ptr, error_message); +} +#else +PNG_FUNCTION(void,PNGAPI +png_err,(png_const_structrp png_ptr),PNG_NORETURN) +{ + /* Prior to 1.5.2 the error_fn received a NULL pointer, expressed + * erroneously as '\0', instead of the empty string "". This was + * apparently an error, introduced in libpng-1.2.20, and png_default_error + * will crash in this case. + */ + if (png_ptr != NULL && png_ptr->error_fn != NULL) + (*(png_ptr->error_fn))(png_constcast(png_structrp,png_ptr), ""); + + /* If the custom handler doesn't exist, or if it returns, + use the default handler, which will not return. */ + png_default_error(png_ptr, ""); +} +#endif /* PNG_ERROR_TEXT_SUPPORTED */ + +/* Utility to safely appends strings to a buffer. This never errors out so + * error checking is not required in the caller. + */ +size_t +png_safecat(png_charp buffer, size_t bufsize, size_t pos, + png_const_charp string) +{ + if (buffer != NULL && pos < bufsize) + { + if (string != NULL) + while (*string != '\0' && pos < bufsize-1) + buffer[pos++] = *string++; + + buffer[pos] = '\0'; + } + + return pos; +} + +#if defined(PNG_WARNINGS_SUPPORTED) || defined(PNG_TIME_RFC1123_SUPPORTED) +/* Utility to dump an unsigned value into a buffer, given a start pointer and + * and end pointer (which should point just *beyond* the end of the buffer!) + * Returns the pointer to the start of the formatted string. + */ +png_charp +png_format_number(png_const_charp start, png_charp end, int format, + png_alloc_size_t number) +{ + int count = 0; /* number of digits output */ + int mincount = 1; /* minimum number required */ + int output = 0; /* digit output (for the fixed point format) */ + + *--end = '\0'; + + /* This is written so that the loop always runs at least once, even with + * number zero. + */ + while (end > start && (number != 0 || count < mincount)) + { + + static const char digits[] = "0123456789ABCDEF"; + + switch (format) + { + case PNG_NUMBER_FORMAT_fixed: + /* Needs five digits (the fraction) */ + mincount = 5; + if (output || number % 10 != 0) + { + *--end = digits[number % 10]; + output = 1; + } + number /= 10; + break; + + case PNG_NUMBER_FORMAT_02u: + /* Expects at least 2 digits. */ + mincount = 2; + /* FALL THROUGH */ + + case PNG_NUMBER_FORMAT_u: + *--end = digits[number % 10]; + number /= 10; + break; + + case PNG_NUMBER_FORMAT_02x: + /* This format expects at least two digits */ + mincount = 2; + /* FALL THROUGH */ + + case PNG_NUMBER_FORMAT_x: + *--end = digits[number & 0xf]; + number >>= 4; + break; + + default: /* an error */ + number = 0; + break; + } + + /* Keep track of the number of digits added */ + ++count; + + /* Float a fixed number here: */ + if (format == PNG_NUMBER_FORMAT_fixed) if (count == 5) if (end > start) + { + /* End of the fraction, but maybe nothing was output? In that case + * drop the decimal point. If the number is a true zero handle that + * here. + */ + if (output != 0) + *--end = '.'; + else if (number == 0) /* and !output */ + *--end = '0'; + } + } + + return end; +} +#endif + +#ifdef PNG_WARNINGS_SUPPORTED +/* This function is called whenever there is a non-fatal error. This function + * should not be changed. If there is a need to handle warnings differently, + * you should supply a replacement warning function and use + * png_set_error_fn() to replace the warning function at run-time. + */ +void PNGAPI +png_warning(png_const_structrp png_ptr, png_const_charp warning_message) +{ + int offset = 0; + if (png_ptr != NULL) + { +#ifdef PNG_ERROR_NUMBERS_SUPPORTED + if (png_ptr->flags& + (PNG_FLAG_STRIP_ERROR_NUMBERS|PNG_FLAG_STRIP_ERROR_TEXT)) +#endif + { + if (*warning_message == PNG_LITERAL_SHARP) + { + for (offset = 1; offset < 15; offset++) + if (warning_message[offset] == ' ') + break; + } + } + } + if (png_ptr != NULL && png_ptr->warning_fn != NULL) + (*(png_ptr->warning_fn))(png_constcast(png_structrp,png_ptr), + warning_message + offset); + else + png_default_warning(png_ptr, warning_message + offset); +} + +/* These functions support 'formatted' warning messages with up to + * PNG_WARNING_PARAMETER_COUNT parameters. In the format string the parameter + * is introduced by @, where 'number' starts at 1. This follows the + * standard established by X/Open for internationalizable error messages. + */ +void +png_warning_parameter(png_warning_parameters p, int number, + png_const_charp string) +{ + if (number > 0 && number <= PNG_WARNING_PARAMETER_COUNT) + (void)png_safecat(p[number-1], (sizeof p[number-1]), 0, string); +} + +void +png_warning_parameter_unsigned(png_warning_parameters p, int number, int format, + png_alloc_size_t value) +{ + char buffer[PNG_NUMBER_BUFFER_SIZE]; + png_warning_parameter(p, number, PNG_FORMAT_NUMBER(buffer, format, value)); +} + +void +png_warning_parameter_signed(png_warning_parameters p, int number, int format, + png_int_32 value) +{ + png_alloc_size_t u; + png_charp str; + char buffer[PNG_NUMBER_BUFFER_SIZE]; + + /* Avoid overflow by doing the negate in a png_alloc_size_t: */ + u = (png_alloc_size_t)value; + if (value < 0) + u = ~u + 1; + + str = PNG_FORMAT_NUMBER(buffer, format, u); + + if (value < 0 && str > buffer) + *--str = '-'; + + png_warning_parameter(p, number, str); +} + +void +png_formatted_warning(png_const_structrp png_ptr, png_warning_parameters p, + png_const_charp message) +{ + /* The internal buffer is just 192 bytes - enough for all our messages, + * overflow doesn't happen because this code checks! If someone figures + * out how to send us a message longer than 192 bytes, all that will + * happen is that the message will be truncated appropriately. + */ + size_t i = 0; /* Index in the msg[] buffer: */ + char msg[192]; + + /* Each iteration through the following loop writes at most one character + * to msg[i++] then returns here to validate that there is still space for + * the trailing '\0'. It may (in the case of a parameter) read more than + * one character from message[]; it must check for '\0' and continue to the + * test if it finds the end of string. + */ + while (i<(sizeof msg)-1 && *message != '\0') + { + /* '@' at end of string is now just printed (previously it was skipped); + * it is an error in the calling code to terminate the string with @. + */ + if (p != NULL && *message == '@' && message[1] != '\0') + { + int parameter_char = *++message; /* Consume the '@' */ + static const char valid_parameters[] = "123456789"; + int parameter = 0; + + /* Search for the parameter digit, the index in the string is the + * parameter to use. + */ + while (valid_parameters[parameter] != parameter_char && + valid_parameters[parameter] != '\0') + ++parameter; + + /* If the parameter digit is out of range it will just get printed. */ + if (parameter < PNG_WARNING_PARAMETER_COUNT) + { + /* Append this parameter */ + png_const_charp parm = p[parameter]; + png_const_charp pend = p[parameter] + (sizeof p[parameter]); + + /* No need to copy the trailing '\0' here, but there is no guarantee + * that parm[] has been initialized, so there is no guarantee of a + * trailing '\0': + */ + while (i<(sizeof msg)-1 && *parm != '\0' && parm < pend) + msg[i++] = *parm++; + + /* Consume the parameter digit too: */ + ++message; + continue; + } + + /* else not a parameter and there is a character after the @ sign; just + * copy that. This is known not to be '\0' because of the test above. + */ + } + + /* At this point *message can't be '\0', even in the bad parameter case + * above where there is a lone '@' at the end of the message string. + */ + msg[i++] = *message++; + } + + /* i is always less than (sizeof msg), so: */ + msg[i] = '\0'; + + /* And this is the formatted message. It may be larger than + * PNG_MAX_ERROR_TEXT, but that is only used for 'chunk' errors and these + * are not (currently) formatted. + */ + png_warning(png_ptr, msg); +} +#endif /* PNG_WARNINGS_SUPPORTED */ + +#ifdef PNG_BENIGN_ERRORS_SUPPORTED +void PNGAPI +png_benign_error(png_const_structrp png_ptr, png_const_charp error_message) +{ + if (png_ptr->flags & PNG_FLAG_BENIGN_ERRORS_WARN) + { +# ifdef PNG_READ_SUPPORTED + if ((png_ptr->mode & PNG_IS_READ_STRUCT) != 0 && + png_ptr->chunk_name != 0) + png_chunk_warning(png_ptr, error_message); + else +# endif + png_warning(png_ptr, error_message); + } + + else + { +# ifdef PNG_READ_SUPPORTED + if ((png_ptr->mode & PNG_IS_READ_STRUCT) != 0 && + png_ptr->chunk_name != 0) + png_chunk_error(png_ptr, error_message); + else +# endif + png_error(png_ptr, error_message); + } + +# ifndef PNG_ERROR_TEXT_SUPPORTED + PNG_UNUSED(error_message) +# endif +} + +void /* PRIVATE */ +png_app_warning(png_const_structrp png_ptr, png_const_charp error_message) +{ + if (png_ptr->flags & PNG_FLAG_APP_WARNINGS_WARN) + png_warning(png_ptr, error_message); + else + png_error(png_ptr, error_message); + +# ifndef PNG_ERROR_TEXT_SUPPORTED + PNG_UNUSED(error_message) +# endif +} + +void /* PRIVATE */ +png_app_error(png_const_structrp png_ptr, png_const_charp error_message) +{ + if (png_ptr->flags & PNG_FLAG_APP_ERRORS_WARN) + png_warning(png_ptr, error_message); + else + png_error(png_ptr, error_message); + +# ifndef PNG_ERROR_TEXT_SUPPORTED + PNG_UNUSED(error_message) +# endif +} +#endif /* BENIGN_ERRORS */ + +/* These utilities are used internally to build an error message that relates + * to the current chunk. The chunk name comes from png_ptr->chunk_name, + * this is used to prefix the message. The message is limited in length + * to 63 bytes, the name characters are output as hex digits wrapped in [] + * if the character is invalid. + */ +#define isnonalpha(c) ((c) < 65 || (c) > 122 || ((c) > 90 && (c) < 97)) +static PNG_CONST char png_digit[16] = { + '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', + 'A', 'B', 'C', 'D', 'E', 'F' +}; + +#define PNG_MAX_ERROR_TEXT 196 /* Currently limited be profile_error in png.c */ +#if defined(PNG_WARNINGS_SUPPORTED) || \ + (defined(PNG_READ_SUPPORTED) && defined(PNG_ERROR_TEXT_SUPPORTED)) +static void /* PRIVATE */ +png_format_buffer(png_const_structrp png_ptr, png_charp buffer, png_const_charp + error_message) +{ + png_uint_32 chunk_name = png_ptr->chunk_name; + int iout = 0, ishift = 24; + + while (ishift >= 0) + { + int c = (int)(chunk_name >> ishift) & 0xff; + + ishift -= 8; + if (isnonalpha(c)) + { + buffer[iout++] = PNG_LITERAL_LEFT_SQUARE_BRACKET; + buffer[iout++] = png_digit[(c & 0xf0) >> 4]; + buffer[iout++] = png_digit[c & 0x0f]; + buffer[iout++] = PNG_LITERAL_RIGHT_SQUARE_BRACKET; + } + + else + { + buffer[iout++] = (char)c; + } + } + + if (error_message == NULL) + buffer[iout] = '\0'; + + else + { + int iin = 0; + + buffer[iout++] = ':'; + buffer[iout++] = ' '; + + while (iin < PNG_MAX_ERROR_TEXT-1 && error_message[iin] != '\0') + buffer[iout++] = error_message[iin++]; + + /* iin < PNG_MAX_ERROR_TEXT, so the following is safe: */ + buffer[iout] = '\0'; + } +} +#endif /* PNG_WARNINGS_SUPPORTED || PNG_ERROR_TEXT_SUPPORTED */ + +#if defined(PNG_READ_SUPPORTED) && defined(PNG_ERROR_TEXT_SUPPORTED) +PNG_FUNCTION(void,PNGAPI +png_chunk_error,(png_const_structrp png_ptr, png_const_charp error_message), + PNG_NORETURN) +{ + char msg[18+PNG_MAX_ERROR_TEXT]; + if (png_ptr == NULL) + png_error(png_ptr, error_message); + + else + { + png_format_buffer(png_ptr, msg, error_message); + png_error(png_ptr, msg); + } +} +#endif /* PNG_READ_SUPPORTED && PNG_ERROR_TEXT_SUPPORTED */ + +#ifdef PNG_WARNINGS_SUPPORTED +void PNGAPI +png_chunk_warning(png_const_structrp png_ptr, png_const_charp warning_message) +{ + char msg[18+PNG_MAX_ERROR_TEXT]; + if (png_ptr == NULL) + png_warning(png_ptr, warning_message); + + else + { + png_format_buffer(png_ptr, msg, warning_message); + png_warning(png_ptr, msg); + } +} +#endif /* PNG_WARNINGS_SUPPORTED */ + +#ifdef PNG_READ_SUPPORTED +#ifdef PNG_BENIGN_ERRORS_SUPPORTED +void PNGAPI +png_chunk_benign_error(png_const_structrp png_ptr, png_const_charp + error_message) +{ + if (png_ptr->flags & PNG_FLAG_BENIGN_ERRORS_WARN) + png_chunk_warning(png_ptr, error_message); + + else + png_chunk_error(png_ptr, error_message); + +# ifndef PNG_ERROR_TEXT_SUPPORTED + PNG_UNUSED(error_message) +# endif +} +#endif +#endif /* PNG_READ_SUPPORTED */ + +void /* PRIVATE */ +png_chunk_report(png_const_structrp png_ptr, png_const_charp message, int error) +{ +# ifndef PNG_WARNINGS_SUPPORTED + PNG_UNUSED(message) +# endif + + /* This is always supported, but for just read or just write it + * unconditionally does the right thing. + */ +# if defined(PNG_READ_SUPPORTED) && defined(PNG_WRITE_SUPPORTED) + if (png_ptr->mode & PNG_IS_READ_STRUCT) +# endif + +# ifdef PNG_READ_SUPPORTED + { + if (error < PNG_CHUNK_ERROR) + png_chunk_warning(png_ptr, message); + + else + png_chunk_benign_error(png_ptr, message); + } +# endif + +# if defined(PNG_READ_SUPPORTED) && defined(PNG_WRITE_SUPPORTED) + else if (!(png_ptr->mode & PNG_IS_READ_STRUCT)) +# endif + +# ifdef PNG_WRITE_SUPPORTED + { + if (error < PNG_CHUNK_WRITE_ERROR) + png_app_warning(png_ptr, message); + + else + png_app_error(png_ptr, message); + } +# endif +} + +#ifdef PNG_ERROR_TEXT_SUPPORTED +#ifdef PNG_FLOATING_POINT_SUPPORTED +PNG_FUNCTION(void, +png_fixed_error,(png_const_structrp png_ptr, png_const_charp name),PNG_NORETURN) +{ +# define fixed_message "fixed point overflow in " +# define fixed_message_ln ((sizeof fixed_message)-1) + int iin; + char msg[fixed_message_ln+PNG_MAX_ERROR_TEXT]; + memcpy(msg, fixed_message, fixed_message_ln); + iin = 0; + if (name != NULL) while (iin < (PNG_MAX_ERROR_TEXT-1) && name[iin] != 0) + { + msg[fixed_message_ln + iin] = name[iin]; + ++iin; + } + msg[fixed_message_ln + iin] = 0; + png_error(png_ptr, msg); +} +#endif +#endif + +#ifdef PNG_SETJMP_SUPPORTED +/* This API only exists if ANSI-C style error handling is used, + * otherwise it is necessary for png_default_error to be overridden. + */ +jmp_buf* PNGAPI +png_set_longjmp_fn(png_structrp png_ptr, png_longjmp_ptr longjmp_fn, + size_t jmp_buf_size) +{ + /* From libpng 1.6.0 the app gets one chance to set a 'jmpbuf_size' value + * and it must not change after that. Libpng doesn't care how big the + * buffer is, just that it doesn't change. + * + * If the buffer size is no *larger* than the size of jmp_buf when libpng is + * compiled a built in jmp_buf is returned; this preserves the pre-1.6.0 + * semantics that this call will not fail. If the size is larger, however, + * the buffer is allocated and this may fail, causing the function to return + * NULL. + */ + if (png_ptr == NULL) + return NULL; + + if (png_ptr->jmp_buf_ptr == NULL) + { + png_ptr->jmp_buf_size = 0; /* not allocated */ + + if (jmp_buf_size <= (sizeof png_ptr->jmp_buf_local)) + png_ptr->jmp_buf_ptr = &png_ptr->jmp_buf_local; + + else + { + png_ptr->jmp_buf_ptr = png_voidcast(jmp_buf *, + png_malloc_warn(png_ptr, jmp_buf_size)); + + if (png_ptr->jmp_buf_ptr == NULL) + return NULL; /* new NULL return on OOM */ + + png_ptr->jmp_buf_size = jmp_buf_size; + } + } + + else /* Already allocated: check the size */ + { + size_t size = png_ptr->jmp_buf_size; + + if (size == 0) + { + size = (sizeof png_ptr->jmp_buf_local); + if (png_ptr->jmp_buf_ptr != &png_ptr->jmp_buf_local) + { + /* This is an internal error in libpng: somehow we have been left + * with a stack allocated jmp_buf when the application regained + * control. It's always possible to fix this up, but for the moment + * this is a png_error because that makes it easy to detect. + */ + png_error(png_ptr, "Libpng jmp_buf still allocated"); + /* png_ptr->jmp_buf_ptr = &png_ptr->jmp_buf_local; */ + } + } + + if (size != jmp_buf_size) + { + png_warning(png_ptr, "Application jmp_buf size changed"); + return NULL; /* caller will probably crash: no choice here */ + } + } + + /* Finally fill in the function, now we have a satisfactory buffer. It is + * valid to change the function on every call. + */ + png_ptr->longjmp_fn = longjmp_fn; + return png_ptr->jmp_buf_ptr; +} + +void /* PRIVATE */ +png_free_jmpbuf(png_structrp png_ptr) +{ + if (png_ptr != NULL) + { + jmp_buf *jb = png_ptr->jmp_buf_ptr; + + /* A size of 0 is used to indicate a local, stack, allocation of the + * pointer; used here and in png.c + */ + if (jb != NULL && png_ptr->jmp_buf_size > 0) + { + + /* This stuff is so that a failure to free the error control structure + * does not leave libpng in a state with no valid error handling: the + * free always succeeds, if there is an error it gets ignored. + */ + if (jb != &png_ptr->jmp_buf_local) + { + /* Make an internal, libpng, jmp_buf to return here */ + jmp_buf free_jmp_buf; + + if (!setjmp(free_jmp_buf)) + { + png_ptr->jmp_buf_ptr = &free_jmp_buf; /* come back here */ + png_ptr->jmp_buf_size = 0; /* stack allocation */ + png_ptr->longjmp_fn = longjmp; + png_free(png_ptr, jb); /* Return to setjmp on error */ + } + } + } + + /* *Always* cancel everything out: */ + png_ptr->jmp_buf_size = 0; + png_ptr->jmp_buf_ptr = NULL; + png_ptr->longjmp_fn = 0; + } +} +#endif + +/* This is the default error handling function. Note that replacements for + * this function MUST NOT RETURN, or the program will likely crash. This + * function is used by default, or if the program supplies NULL for the + * error function pointer in png_set_error_fn(). + */ +static PNG_FUNCTION(void /* PRIVATE */, +png_default_error,(png_const_structrp png_ptr, png_const_charp error_message), + PNG_NORETURN) +{ +#ifdef PNG_CONSOLE_IO_SUPPORTED +#ifdef PNG_ERROR_NUMBERS_SUPPORTED + /* Check on NULL only added in 1.5.4 */ + if (error_message != NULL && *error_message == PNG_LITERAL_SHARP) + { + /* Strip "#nnnn " from beginning of error message. */ + int offset; + char error_number[16]; + for (offset = 0; offset<15; offset++) + { + error_number[offset] = error_message[offset + 1]; + if (error_message[offset] == ' ') + break; + } + + if ((offset > 1) && (offset < 15)) + { + error_number[offset - 1] = '\0'; + fprintf(stderr, "libpng error no. %s: %s", + error_number, error_message + offset + 1); + fprintf(stderr, PNG_STRING_NEWLINE); + } + + else + { + fprintf(stderr, "libpng error: %s, offset=%d", + error_message, offset); + fprintf(stderr, PNG_STRING_NEWLINE); + } + } + else +#endif + { + fprintf(stderr, "libpng error: %s", error_message ? error_message : + "undefined"); + fprintf(stderr, PNG_STRING_NEWLINE); + } +#else + PNG_UNUSED(error_message) /* Make compiler happy */ +#endif + png_longjmp(png_ptr, 1); +} + +PNG_FUNCTION(void,PNGAPI +png_longjmp,(png_const_structrp png_ptr, int val),PNG_NORETURN) +{ +#ifdef PNG_SETJMP_SUPPORTED + if (png_ptr && png_ptr->longjmp_fn && png_ptr->jmp_buf_ptr) + png_ptr->longjmp_fn(*png_ptr->jmp_buf_ptr, val); +#else + PNG_UNUSED(png_ptr) + PNG_UNUSED(val) +#endif + + /* If control reaches this point, png_longjmp() must not return. The only + * choice is to terminate the whole process (or maybe the thread); to do + * this the ANSI-C abort() function is used unless a different method is + * implemented by overriding the default configuration setting for + * PNG_ABORT(). + */ + PNG_ABORT(); +} + +#ifdef PNG_WARNINGS_SUPPORTED +/* This function is called when there is a warning, but the library thinks + * it can continue anyway. Replacement functions don't have to do anything + * here if you don't want them to. In the default configuration, png_ptr is + * not used, but it is passed in case it may be useful. + */ +static void /* PRIVATE */ +png_default_warning(png_const_structrp png_ptr, png_const_charp warning_message) +{ +#ifdef PNG_CONSOLE_IO_SUPPORTED +# ifdef PNG_ERROR_NUMBERS_SUPPORTED + if (*warning_message == PNG_LITERAL_SHARP) + { + int offset; + char warning_number[16]; + for (offset = 0; offset < 15; offset++) + { + warning_number[offset] = warning_message[offset + 1]; + if (warning_message[offset] == ' ') + break; + } + + if ((offset > 1) && (offset < 15)) + { + warning_number[offset + 1] = '\0'; + fprintf(stderr, "libpng warning no. %s: %s", + warning_number, warning_message + offset); + fprintf(stderr, PNG_STRING_NEWLINE); + } + + else + { + fprintf(stderr, "libpng warning: %s", + warning_message); + fprintf(stderr, PNG_STRING_NEWLINE); + } + } + else +# endif + + { + fprintf(stderr, "libpng warning: %s", warning_message); + fprintf(stderr, PNG_STRING_NEWLINE); + } +#else + PNG_UNUSED(warning_message) /* Make compiler happy */ +#endif + PNG_UNUSED(png_ptr) /* Make compiler happy */ +} +#endif /* PNG_WARNINGS_SUPPORTED */ + +/* This function is called when the application wants to use another method + * of handling errors and warnings. Note that the error function MUST NOT + * return to the calling routine or serious problems will occur. The return + * method used in the default routine calls longjmp(png_ptr->jmp_buf_ptr, 1) + */ +void PNGAPI +png_set_error_fn(png_structrp png_ptr, png_voidp error_ptr, + png_error_ptr error_fn, png_error_ptr warning_fn) +{ + if (png_ptr == NULL) + return; + + png_ptr->error_ptr = error_ptr; + png_ptr->error_fn = error_fn; +#ifdef PNG_WARNINGS_SUPPORTED + png_ptr->warning_fn = warning_fn; +#else + PNG_UNUSED(warning_fn) +#endif +} + + +/* This function returns a pointer to the error_ptr associated with the user + * functions. The application should free any memory associated with this + * pointer before png_write_destroy and png_read_destroy are called. + */ +png_voidp PNGAPI +png_get_error_ptr(png_const_structrp png_ptr) +{ + if (png_ptr == NULL) + return NULL; + + return ((png_voidp)png_ptr->error_ptr); +} + + +#ifdef PNG_ERROR_NUMBERS_SUPPORTED +void PNGAPI +png_set_strip_error_numbers(png_structrp png_ptr, png_uint_32 strip_mode) +{ + if (png_ptr != NULL) + { + png_ptr->flags &= + ((~(PNG_FLAG_STRIP_ERROR_NUMBERS | + PNG_FLAG_STRIP_ERROR_TEXT))&strip_mode); + } +} +#endif + +#if defined(PNG_SIMPLIFIED_READ_SUPPORTED) ||\ + defined(PNG_SIMPLIFIED_WRITE_SUPPORTED) + /* Currently the above both depend on SETJMP_SUPPORTED, however it would be + * possible to implement without setjmp support just so long as there is some + * way to handle the error return here: + */ +PNG_FUNCTION(void /* PRIVATE */, (PNGCBAPI +png_safe_error),(png_structp png_nonconst_ptr, png_const_charp error_message), + PNG_NORETURN) +{ + const png_const_structrp png_ptr = png_nonconst_ptr; + png_imagep image = png_voidcast(png_imagep, png_ptr->error_ptr); + + /* An error is always logged here, overwriting anything (typically a warning) + * that is already there: + */ + if (image != NULL) + { + png_safecat(image->message, (sizeof image->message), 0, error_message); + image->warning_or_error |= PNG_IMAGE_ERROR; + + /* Retrieve the jmp_buf from within the png_control, making this work for + * C++ compilation too is pretty tricky: C++ wants a pointer to the first + * element of a jmp_buf, but C doesn't tell us the type of that. + */ + if (image->opaque != NULL && image->opaque->error_buf != NULL) + longjmp(png_control_jmp_buf(image->opaque), 1); + + /* Missing longjmp buffer, the following is to help debugging: */ + { + size_t pos = png_safecat(image->message, (sizeof image->message), 0, + "bad longjmp: "); + png_safecat(image->message, (sizeof image->message), pos, + error_message); + } + } + + /* Here on an internal programming error. */ + abort(); +} + +#ifdef PNG_WARNINGS_SUPPORTED +void /* PRIVATE */ PNGCBAPI +png_safe_warning(png_structp png_nonconst_ptr, png_const_charp warning_message) +{ + const png_const_structrp png_ptr = png_nonconst_ptr; + png_imagep image = png_voidcast(png_imagep, png_ptr->error_ptr); + + /* A warning is only logged if there is no prior warning or error. */ + if (image->warning_or_error == 0) + { + png_safecat(image->message, (sizeof image->message), 0, warning_message); + image->warning_or_error |= PNG_IMAGE_WARNING; + } +} +#endif + +int /* PRIVATE */ +png_safe_execute(png_imagep image_in, int (*function)(png_voidp), png_voidp arg) +{ + volatile png_imagep image = image_in; + volatile int result; + volatile png_voidp saved_error_buf; + jmp_buf safe_jmpbuf; + + /* Safely execute function(arg) with png_error returning to this function. */ + saved_error_buf = image->opaque->error_buf; + result = setjmp(safe_jmpbuf) == 0; + + if (result != 0) + { + + image->opaque->error_buf = safe_jmpbuf; + result = function(arg); + } + + image->opaque->error_buf = saved_error_buf; + + /* And do the cleanup prior to any failure return. */ + if (result == 0) + png_image_free(image); + + return result; +} +#endif /* SIMPLIFIED READ/WRITE */ +#endif /* PNG_READ_SUPPORTED || PNG_WRITE_SUPPORTED */ diff --git a/png/pngget.c b/png/pngget.c new file mode 100644 index 0000000..9e205ad --- /dev/null +++ b/png/pngget.c @@ -0,0 +1,1198 @@ + +/* pngget.c - retrieval of values from info struct + * + * Last changed in libpng 1.6.11 [June 12, 2014] + * Copyright (c) 1998-2014 Glenn Randers-Pehrson + * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) + * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) + * + * This code is released under the libpng license. + * For conditions of distribution and use, see the disclaimer + * and license in png.h + * + */ + +#include "pngpriv.h" + +#if defined(PNG_READ_SUPPORTED) || defined(PNG_WRITE_SUPPORTED) + +png_uint_32 PNGAPI +png_get_valid(png_const_structrp png_ptr, png_const_inforp info_ptr, + png_uint_32 flag) +{ + if (png_ptr != NULL && info_ptr != NULL) + return(info_ptr->valid & flag); + + return(0); +} + +png_size_t PNGAPI +png_get_rowbytes(png_const_structrp png_ptr, png_const_inforp info_ptr) +{ + if (png_ptr != NULL && info_ptr != NULL) + return(info_ptr->rowbytes); + + return(0); +} + +#ifdef PNG_INFO_IMAGE_SUPPORTED +png_bytepp PNGAPI +png_get_rows(png_const_structrp png_ptr, png_const_inforp info_ptr) +{ + if (png_ptr != NULL && info_ptr != NULL) + return(info_ptr->row_pointers); + + return(0); +} +#endif + +#ifdef PNG_EASY_ACCESS_SUPPORTED +/* Easy access to info, added in libpng-0.99 */ +png_uint_32 PNGAPI +png_get_image_width(png_const_structrp png_ptr, png_const_inforp info_ptr) +{ + if (png_ptr != NULL && info_ptr != NULL) + return info_ptr->width; + + return (0); +} + +png_uint_32 PNGAPI +png_get_image_height(png_const_structrp png_ptr, png_const_inforp info_ptr) +{ + if (png_ptr != NULL && info_ptr != NULL) + return info_ptr->height; + + return (0); +} + +png_byte PNGAPI +png_get_bit_depth(png_const_structrp png_ptr, png_const_inforp info_ptr) +{ + if (png_ptr != NULL && info_ptr != NULL) + return info_ptr->bit_depth; + + return (0); +} + +png_byte PNGAPI +png_get_color_type(png_const_structrp png_ptr, png_const_inforp info_ptr) +{ + if (png_ptr != NULL && info_ptr != NULL) + return info_ptr->color_type; + + return (0); +} + +png_byte PNGAPI +png_get_filter_type(png_const_structrp png_ptr, png_const_inforp info_ptr) +{ + if (png_ptr != NULL && info_ptr != NULL) + return info_ptr->filter_type; + + return (0); +} + +png_byte PNGAPI +png_get_interlace_type(png_const_structrp png_ptr, png_const_inforp info_ptr) +{ + if (png_ptr != NULL && info_ptr != NULL) + return info_ptr->interlace_type; + + return (0); +} + +png_byte PNGAPI +png_get_compression_type(png_const_structrp png_ptr, png_const_inforp info_ptr) +{ + if (png_ptr != NULL && info_ptr != NULL) + return info_ptr->compression_type; + + return (0); +} + +png_uint_32 PNGAPI +png_get_x_pixels_per_meter(png_const_structrp png_ptr, png_const_inforp + info_ptr) +{ +#ifdef PNG_pHYs_SUPPORTED + if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_pHYs)) + { + png_debug1(1, "in %s retrieval function", + "png_get_x_pixels_per_meter"); + + if (info_ptr->phys_unit_type == PNG_RESOLUTION_METER) + return (info_ptr->x_pixels_per_unit); + } +#else + PNG_UNUSED(png_ptr) + PNG_UNUSED(info_ptr) +#endif + + return (0); +} + +png_uint_32 PNGAPI +png_get_y_pixels_per_meter(png_const_structrp png_ptr, png_const_inforp + info_ptr) +{ +#ifdef PNG_pHYs_SUPPORTED + if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_pHYs)) + { + png_debug1(1, "in %s retrieval function", + "png_get_y_pixels_per_meter"); + + if (info_ptr->phys_unit_type == PNG_RESOLUTION_METER) + return (info_ptr->y_pixels_per_unit); + } +#else + PNG_UNUSED(png_ptr) + PNG_UNUSED(info_ptr) +#endif + + return (0); +} + +png_uint_32 PNGAPI +png_get_pixels_per_meter(png_const_structrp png_ptr, png_const_inforp info_ptr) +{ +#ifdef PNG_pHYs_SUPPORTED + if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_pHYs)) + { + png_debug1(1, "in %s retrieval function", "png_get_pixels_per_meter"); + + if (info_ptr->phys_unit_type == PNG_RESOLUTION_METER && + info_ptr->x_pixels_per_unit == info_ptr->y_pixels_per_unit) + return (info_ptr->x_pixels_per_unit); + } +#else + PNG_UNUSED(png_ptr) + PNG_UNUSED(info_ptr) +#endif + + return (0); +} + +#ifdef PNG_FLOATING_POINT_SUPPORTED +float PNGAPI +png_get_pixel_aspect_ratio(png_const_structrp png_ptr, png_const_inforp + info_ptr) +{ +#ifdef PNG_READ_pHYs_SUPPORTED + if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_pHYs)) + { + png_debug1(1, "in %s retrieval function", "png_get_aspect_ratio"); + + if (info_ptr->x_pixels_per_unit != 0) + return ((float)((float)info_ptr->y_pixels_per_unit + /(float)info_ptr->x_pixels_per_unit)); + } +#else + PNG_UNUSED(png_ptr) + PNG_UNUSED(info_ptr) +#endif + + return ((float)0.0); +} +#endif + +#ifdef PNG_FIXED_POINT_SUPPORTED +png_fixed_point PNGAPI +png_get_pixel_aspect_ratio_fixed(png_const_structrp png_ptr, + png_const_inforp info_ptr) +{ +#ifdef PNG_READ_pHYs_SUPPORTED + if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_pHYs) + && info_ptr->x_pixels_per_unit > 0 && info_ptr->y_pixels_per_unit > 0 + && info_ptr->x_pixels_per_unit <= PNG_UINT_31_MAX + && info_ptr->y_pixels_per_unit <= PNG_UINT_31_MAX) + { + png_fixed_point res; + + png_debug1(1, "in %s retrieval function", "png_get_aspect_ratio_fixed"); + + /* The following casts work because a PNG 4 byte integer only has a valid + * range of 0..2^31-1; otherwise the cast might overflow. + */ + if (png_muldiv(&res, (png_int_32)info_ptr->y_pixels_per_unit, PNG_FP_1, + (png_int_32)info_ptr->x_pixels_per_unit)) + return res; + } +#else + PNG_UNUSED(png_ptr) + PNG_UNUSED(info_ptr) +#endif + + return 0; +} +#endif + +png_int_32 PNGAPI +png_get_x_offset_microns(png_const_structrp png_ptr, png_const_inforp info_ptr) +{ +#ifdef PNG_oFFs_SUPPORTED + if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_oFFs)) + { + png_debug1(1, "in %s retrieval function", "png_get_x_offset_microns"); + + if (info_ptr->offset_unit_type == PNG_OFFSET_MICROMETER) + return (info_ptr->x_offset); + } +#else + PNG_UNUSED(png_ptr) + PNG_UNUSED(info_ptr) +#endif + + return (0); +} + +png_int_32 PNGAPI +png_get_y_offset_microns(png_const_structrp png_ptr, png_const_inforp info_ptr) +{ +#ifdef PNG_oFFs_SUPPORTED + if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_oFFs)) + { + png_debug1(1, "in %s retrieval function", "png_get_y_offset_microns"); + + if (info_ptr->offset_unit_type == PNG_OFFSET_MICROMETER) + return (info_ptr->y_offset); + } +#else + PNG_UNUSED(png_ptr) + PNG_UNUSED(info_ptr) +#endif + + return (0); +} + +png_int_32 PNGAPI +png_get_x_offset_pixels(png_const_structrp png_ptr, png_const_inforp info_ptr) +{ +#ifdef PNG_oFFs_SUPPORTED + if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_oFFs)) + { + png_debug1(1, "in %s retrieval function", "png_get_x_offset_pixels"); + + if (info_ptr->offset_unit_type == PNG_OFFSET_PIXEL) + return (info_ptr->x_offset); + } +#else + PNG_UNUSED(png_ptr) + PNG_UNUSED(info_ptr) +#endif + + return (0); +} + +png_int_32 PNGAPI +png_get_y_offset_pixels(png_const_structrp png_ptr, png_const_inforp info_ptr) +{ +#ifdef PNG_oFFs_SUPPORTED + if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_oFFs)) + { + png_debug1(1, "in %s retrieval function", "png_get_y_offset_pixels"); + + if (info_ptr->offset_unit_type == PNG_OFFSET_PIXEL) + return (info_ptr->y_offset); + } +#else + PNG_UNUSED(png_ptr) + PNG_UNUSED(info_ptr) +#endif + + return (0); +} + +#ifdef PNG_INCH_CONVERSIONS_SUPPORTED +static png_uint_32 +ppi_from_ppm(png_uint_32 ppm) +{ +#if 0 + /* The conversion is *(2.54/100), in binary (32 digits): + * .00000110100000001001110101001001 + */ + png_uint_32 t1001, t1101; + ppm >>= 1; /* .1 */ + t1001 = ppm + (ppm >> 3); /* .1001 */ + t1101 = t1001 + (ppm >> 1); /* .1101 */ + ppm >>= 20; /* .000000000000000000001 */ + t1101 += t1101 >> 15; /* .1101000000000001101 */ + t1001 >>= 11; /* .000000000001001 */ + t1001 += t1001 >> 12; /* .000000000001001000000001001 */ + ppm += t1001; /* .000000000001001000001001001 */ + ppm += t1101; /* .110100000001001110101001001 */ + return (ppm + 16) >> 5;/* .00000110100000001001110101001001 */ +#else + /* The argument is a PNG unsigned integer, so it is not permitted + * to be bigger than 2^31. + */ + png_fixed_point result; + if (ppm <= PNG_UINT_31_MAX && png_muldiv(&result, (png_int_32)ppm, 127, + 5000)) + return result; + + /* Overflow. */ + return 0; +#endif +} + +png_uint_32 PNGAPI +png_get_pixels_per_inch(png_const_structrp png_ptr, png_const_inforp info_ptr) +{ + return ppi_from_ppm(png_get_pixels_per_meter(png_ptr, info_ptr)); +} + +png_uint_32 PNGAPI +png_get_x_pixels_per_inch(png_const_structrp png_ptr, png_const_inforp info_ptr) +{ + return ppi_from_ppm(png_get_x_pixels_per_meter(png_ptr, info_ptr)); +} + +png_uint_32 PNGAPI +png_get_y_pixels_per_inch(png_const_structrp png_ptr, png_const_inforp info_ptr) +{ + return ppi_from_ppm(png_get_y_pixels_per_meter(png_ptr, info_ptr)); +} + +#ifdef PNG_FIXED_POINT_SUPPORTED +static png_fixed_point +png_fixed_inches_from_microns(png_const_structrp png_ptr, png_int_32 microns) +{ + /* Convert from metres * 1,000,000 to inches * 100,000, meters to + * inches is simply *(100/2.54), so we want *(10/2.54) == 500/127. + * Notice that this can overflow - a warning is output and 0 is + * returned. + */ + return png_muldiv_warn(png_ptr, microns, 500, 127); +} + +png_fixed_point PNGAPI +png_get_x_offset_inches_fixed(png_const_structrp png_ptr, + png_const_inforp info_ptr) +{ + return png_fixed_inches_from_microns(png_ptr, + png_get_x_offset_microns(png_ptr, info_ptr)); +} +#endif + +#ifdef PNG_FIXED_POINT_SUPPORTED +png_fixed_point PNGAPI +png_get_y_offset_inches_fixed(png_const_structrp png_ptr, + png_const_inforp info_ptr) +{ + return png_fixed_inches_from_microns(png_ptr, + png_get_y_offset_microns(png_ptr, info_ptr)); +} +#endif + +#ifdef PNG_FLOATING_POINT_SUPPORTED +float PNGAPI +png_get_x_offset_inches(png_const_structrp png_ptr, png_const_inforp info_ptr) +{ + /* To avoid the overflow do the conversion directly in floating + * point. + */ + return (float)(png_get_x_offset_microns(png_ptr, info_ptr) * .00003937); +} +#endif + +#ifdef PNG_FLOATING_POINT_SUPPORTED +float PNGAPI +png_get_y_offset_inches(png_const_structrp png_ptr, png_const_inforp info_ptr) +{ + /* To avoid the overflow do the conversion directly in floating + * point. + */ + return (float)(png_get_y_offset_microns(png_ptr, info_ptr) * .00003937); +} +#endif + +#ifdef PNG_pHYs_SUPPORTED +png_uint_32 PNGAPI +png_get_pHYs_dpi(png_const_structrp png_ptr, png_const_inforp info_ptr, + png_uint_32 *res_x, png_uint_32 *res_y, int *unit_type) +{ + png_uint_32 retval = 0; + + if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_pHYs)) + { + png_debug1(1, "in %s retrieval function", "pHYs"); + + if (res_x != NULL) + { + *res_x = info_ptr->x_pixels_per_unit; + retval |= PNG_INFO_pHYs; + } + + if (res_y != NULL) + { + *res_y = info_ptr->y_pixels_per_unit; + retval |= PNG_INFO_pHYs; + } + + if (unit_type != NULL) + { + *unit_type = (int)info_ptr->phys_unit_type; + retval |= PNG_INFO_pHYs; + + if (*unit_type == 1) + { + if (res_x != NULL) *res_x = (png_uint_32)(*res_x * .0254 + .50); + if (res_y != NULL) *res_y = (png_uint_32)(*res_y * .0254 + .50); + } + } + } + + return (retval); +} +#endif /* PNG_pHYs_SUPPORTED */ +#endif /* PNG_INCH_CONVERSIONS_SUPPORTED */ + +/* png_get_channels really belongs in here, too, but it's been around longer */ + +#endif /* PNG_EASY_ACCESS_SUPPORTED */ + + +png_byte PNGAPI +png_get_channels(png_const_structrp png_ptr, png_const_inforp info_ptr) +{ + if (png_ptr != NULL && info_ptr != NULL) + return(info_ptr->channels); + + return (0); +} + +#ifdef PNG_READ_SUPPORTED +png_const_bytep PNGAPI +png_get_signature(png_const_structrp png_ptr, png_const_inforp info_ptr) +{ + if (png_ptr != NULL && info_ptr != NULL) + return(info_ptr->signature); + + return (NULL); +} +#endif + +#ifdef PNG_bKGD_SUPPORTED +png_uint_32 PNGAPI +png_get_bKGD(png_const_structrp png_ptr, png_inforp info_ptr, + png_color_16p *background) +{ + if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_bKGD) + && background != NULL) + { + png_debug1(1, "in %s retrieval function", "bKGD"); + + *background = &(info_ptr->background); + return (PNG_INFO_bKGD); + } + + return (0); +} +#endif + +#ifdef PNG_cHRM_SUPPORTED +/* The XYZ APIs were added in 1.5.5 to take advantage of the code added at the + * same time to correct the rgb grayscale coefficient defaults obtained from the + * cHRM chunk in 1.5.4 + */ +# ifdef PNG_FLOATING_POINT_SUPPORTED +png_uint_32 PNGAPI +png_get_cHRM(png_const_structrp png_ptr, png_const_inforp info_ptr, + double *white_x, double *white_y, double *red_x, double *red_y, + double *green_x, double *green_y, double *blue_x, double *blue_y) +{ + /* Quiet API change: this code used to only return the end points if a cHRM + * chunk was present, but the end points can also come from iCCP or sRGB + * chunks, so in 1.6.0 the png_get_ APIs return the end points regardless and + * the png_set_ APIs merely check that set end points are mutually + * consistent. + */ + if (png_ptr != NULL && info_ptr != NULL && + (info_ptr->colorspace.flags & PNG_COLORSPACE_HAVE_ENDPOINTS)) + { + png_debug1(1, "in %s retrieval function", "cHRM"); + + if (white_x != NULL) + *white_x = png_float(png_ptr, + info_ptr->colorspace.end_points_xy.whitex, "cHRM white X"); + if (white_y != NULL) + *white_y = png_float(png_ptr, + info_ptr->colorspace.end_points_xy.whitey, "cHRM white Y"); + if (red_x != NULL) + *red_x = png_float(png_ptr, info_ptr->colorspace.end_points_xy.redx, + "cHRM red X"); + if (red_y != NULL) + *red_y = png_float(png_ptr, info_ptr->colorspace.end_points_xy.redy, + "cHRM red Y"); + if (green_x != NULL) + *green_x = png_float(png_ptr, + info_ptr->colorspace.end_points_xy.greenx, "cHRM green X"); + if (green_y != NULL) + *green_y = png_float(png_ptr, + info_ptr->colorspace.end_points_xy.greeny, "cHRM green Y"); + if (blue_x != NULL) + *blue_x = png_float(png_ptr, info_ptr->colorspace.end_points_xy.bluex, + "cHRM blue X"); + if (blue_y != NULL) + *blue_y = png_float(png_ptr, info_ptr->colorspace.end_points_xy.bluey, + "cHRM blue Y"); + return (PNG_INFO_cHRM); + } + + return (0); +} + +png_uint_32 PNGAPI +png_get_cHRM_XYZ(png_const_structrp png_ptr, png_const_inforp info_ptr, + double *red_X, double *red_Y, double *red_Z, double *green_X, + double *green_Y, double *green_Z, double *blue_X, double *blue_Y, + double *blue_Z) +{ + if (png_ptr != NULL && info_ptr != NULL && + (info_ptr->colorspace.flags & PNG_COLORSPACE_HAVE_ENDPOINTS)) + { + png_debug1(1, "in %s retrieval function", "cHRM_XYZ(float)"); + + if (red_X != NULL) + *red_X = png_float(png_ptr, info_ptr->colorspace.end_points_XYZ.red_X, + "cHRM red X"); + if (red_Y != NULL) + *red_Y = png_float(png_ptr, info_ptr->colorspace.end_points_XYZ.red_Y, + "cHRM red Y"); + if (red_Z != NULL) + *red_Z = png_float(png_ptr, info_ptr->colorspace.end_points_XYZ.red_Z, + "cHRM red Z"); + if (green_X != NULL) + *green_X = png_float(png_ptr, + info_ptr->colorspace.end_points_XYZ.green_X, "cHRM green X"); + if (green_Y != NULL) + *green_Y = png_float(png_ptr, + info_ptr->colorspace.end_points_XYZ.green_Y, "cHRM green Y"); + if (green_Z != NULL) + *green_Z = png_float(png_ptr, + info_ptr->colorspace.end_points_XYZ.green_Z, "cHRM green Z"); + if (blue_X != NULL) + *blue_X = png_float(png_ptr, + info_ptr->colorspace.end_points_XYZ.blue_X, "cHRM blue X"); + if (blue_Y != NULL) + *blue_Y = png_float(png_ptr, + info_ptr->colorspace.end_points_XYZ.blue_Y, "cHRM blue Y"); + if (blue_Z != NULL) + *blue_Z = png_float(png_ptr, + info_ptr->colorspace.end_points_XYZ.blue_Z, "cHRM blue Z"); + return (PNG_INFO_cHRM); + } + + return (0); +} +# endif + +# ifdef PNG_FIXED_POINT_SUPPORTED +png_uint_32 PNGAPI +png_get_cHRM_XYZ_fixed(png_const_structrp png_ptr, png_const_inforp info_ptr, + png_fixed_point *int_red_X, png_fixed_point *int_red_Y, + png_fixed_point *int_red_Z, png_fixed_point *int_green_X, + png_fixed_point *int_green_Y, png_fixed_point *int_green_Z, + png_fixed_point *int_blue_X, png_fixed_point *int_blue_Y, + png_fixed_point *int_blue_Z) +{ + if (png_ptr != NULL && info_ptr != NULL && + (info_ptr->colorspace.flags & PNG_COLORSPACE_HAVE_ENDPOINTS)) + { + png_debug1(1, "in %s retrieval function", "cHRM_XYZ"); + + if (int_red_X != NULL) + *int_red_X = info_ptr->colorspace.end_points_XYZ.red_X; + if (int_red_Y != NULL) + *int_red_Y = info_ptr->colorspace.end_points_XYZ.red_Y; + if (int_red_Z != NULL) + *int_red_Z = info_ptr->colorspace.end_points_XYZ.red_Z; + if (int_green_X != NULL) + *int_green_X = info_ptr->colorspace.end_points_XYZ.green_X; + if (int_green_Y != NULL) + *int_green_Y = info_ptr->colorspace.end_points_XYZ.green_Y; + if (int_green_Z != NULL) + *int_green_Z = info_ptr->colorspace.end_points_XYZ.green_Z; + if (int_blue_X != NULL) + *int_blue_X = info_ptr->colorspace.end_points_XYZ.blue_X; + if (int_blue_Y != NULL) + *int_blue_Y = info_ptr->colorspace.end_points_XYZ.blue_Y; + if (int_blue_Z != NULL) + *int_blue_Z = info_ptr->colorspace.end_points_XYZ.blue_Z; + return (PNG_INFO_cHRM); + } + + return (0); +} + +png_uint_32 PNGAPI +png_get_cHRM_fixed(png_const_structrp png_ptr, png_const_inforp info_ptr, + png_fixed_point *white_x, png_fixed_point *white_y, png_fixed_point *red_x, + png_fixed_point *red_y, png_fixed_point *green_x, png_fixed_point *green_y, + png_fixed_point *blue_x, png_fixed_point *blue_y) +{ + png_debug1(1, "in %s retrieval function", "cHRM"); + + if (png_ptr != NULL && info_ptr != NULL && + (info_ptr->colorspace.flags & PNG_COLORSPACE_HAVE_ENDPOINTS)) + { + if (white_x != NULL) + *white_x = info_ptr->colorspace.end_points_xy.whitex; + if (white_y != NULL) + *white_y = info_ptr->colorspace.end_points_xy.whitey; + if (red_x != NULL) + *red_x = info_ptr->colorspace.end_points_xy.redx; + if (red_y != NULL) + *red_y = info_ptr->colorspace.end_points_xy.redy; + if (green_x != NULL) + *green_x = info_ptr->colorspace.end_points_xy.greenx; + if (green_y != NULL) + *green_y = info_ptr->colorspace.end_points_xy.greeny; + if (blue_x != NULL) + *blue_x = info_ptr->colorspace.end_points_xy.bluex; + if (blue_y != NULL) + *blue_y = info_ptr->colorspace.end_points_xy.bluey; + return (PNG_INFO_cHRM); + } + + return (0); +} +# endif +#endif + +#ifdef PNG_gAMA_SUPPORTED +# ifdef PNG_FIXED_POINT_SUPPORTED +png_uint_32 PNGAPI +png_get_gAMA_fixed(png_const_structrp png_ptr, png_const_inforp info_ptr, + png_fixed_point *file_gamma) +{ + png_debug1(1, "in %s retrieval function", "gAMA"); + + if (png_ptr != NULL && info_ptr != NULL && + (info_ptr->colorspace.flags & PNG_COLORSPACE_HAVE_GAMMA) && + file_gamma != NULL) + { + *file_gamma = info_ptr->colorspace.gamma; + return (PNG_INFO_gAMA); + } + + return (0); +} +# endif + +# ifdef PNG_FLOATING_POINT_SUPPORTED +png_uint_32 PNGAPI +png_get_gAMA(png_const_structrp png_ptr, png_const_inforp info_ptr, + double *file_gamma) +{ + png_debug1(1, "in %s retrieval function", "gAMA(float)"); + + if (png_ptr != NULL && info_ptr != NULL && + (info_ptr->colorspace.flags & PNG_COLORSPACE_HAVE_GAMMA) && + file_gamma != NULL) + { + *file_gamma = png_float(png_ptr, info_ptr->colorspace.gamma, + "png_get_gAMA"); + return (PNG_INFO_gAMA); + } + + return (0); +} +# endif +#endif + +#ifdef PNG_sRGB_SUPPORTED +png_uint_32 PNGAPI +png_get_sRGB(png_const_structrp png_ptr, png_const_inforp info_ptr, + int *file_srgb_intent) +{ + png_debug1(1, "in %s retrieval function", "sRGB"); + + if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_sRGB) + && file_srgb_intent != NULL) + { + *file_srgb_intent = info_ptr->colorspace.rendering_intent; + return (PNG_INFO_sRGB); + } + + return (0); +} +#endif + +#ifdef PNG_iCCP_SUPPORTED +png_uint_32 PNGAPI +png_get_iCCP(png_const_structrp png_ptr, png_inforp info_ptr, + png_charpp name, int *compression_type, + png_bytepp profile, png_uint_32 *proflen) +{ + png_debug1(1, "in %s retrieval function", "iCCP"); + + if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_iCCP) + && name != NULL && compression_type != NULL && profile != NULL && + proflen != NULL) + { + *name = info_ptr->iccp_name; + *profile = info_ptr->iccp_profile; + *proflen = png_get_uint_32(info_ptr->iccp_profile); + /* This is somewhat irrelevant since the profile data returned has + * actually been uncompressed. + */ + *compression_type = PNG_COMPRESSION_TYPE_BASE; + return (PNG_INFO_iCCP); + } + + return (0); +} +#endif + +#ifdef PNG_sPLT_SUPPORTED +int PNGAPI +png_get_sPLT(png_const_structrp png_ptr, png_inforp info_ptr, + png_sPLT_tpp spalettes) +{ + if (png_ptr != NULL && info_ptr != NULL && spalettes != NULL) + { + *spalettes = info_ptr->splt_palettes; + return info_ptr->splt_palettes_num; + } + + return (0); +} +#endif + +#ifdef PNG_hIST_SUPPORTED +png_uint_32 PNGAPI +png_get_hIST(png_const_structrp png_ptr, png_inforp info_ptr, + png_uint_16p *hist) +{ + png_debug1(1, "in %s retrieval function", "hIST"); + + if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_hIST) + && hist != NULL) + { + *hist = info_ptr->hist; + return (PNG_INFO_hIST); + } + + return (0); +} +#endif + +png_uint_32 PNGAPI +png_get_IHDR(png_const_structrp png_ptr, png_const_inforp info_ptr, + png_uint_32 *width, png_uint_32 *height, int *bit_depth, + int *color_type, int *interlace_type, int *compression_type, + int *filter_type) +{ + png_debug1(1, "in %s retrieval function", "IHDR"); + + if (png_ptr == NULL || info_ptr == NULL || width == NULL || + height == NULL || bit_depth == NULL || color_type == NULL) + return (0); + + *width = info_ptr->width; + *height = info_ptr->height; + *bit_depth = info_ptr->bit_depth; + *color_type = info_ptr->color_type; + + if (compression_type != NULL) + *compression_type = info_ptr->compression_type; + + if (filter_type != NULL) + *filter_type = info_ptr->filter_type; + + if (interlace_type != NULL) + *interlace_type = info_ptr->interlace_type; + + /* This is redundant if we can be sure that the info_ptr values were all + * assigned in png_set_IHDR(). We do the check anyhow in case an + * application has ignored our advice not to mess with the members + * of info_ptr directly. + */ + png_check_IHDR(png_ptr, info_ptr->width, info_ptr->height, + info_ptr->bit_depth, info_ptr->color_type, info_ptr->interlace_type, + info_ptr->compression_type, info_ptr->filter_type); + + return (1); +} + +#ifdef PNG_oFFs_SUPPORTED +png_uint_32 PNGAPI +png_get_oFFs(png_const_structrp png_ptr, png_const_inforp info_ptr, + png_int_32 *offset_x, png_int_32 *offset_y, int *unit_type) +{ + png_debug1(1, "in %s retrieval function", "oFFs"); + + if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_oFFs) + && offset_x != NULL && offset_y != NULL && unit_type != NULL) + { + *offset_x = info_ptr->x_offset; + *offset_y = info_ptr->y_offset; + *unit_type = (int)info_ptr->offset_unit_type; + return (PNG_INFO_oFFs); + } + + return (0); +} +#endif + +#ifdef PNG_pCAL_SUPPORTED +png_uint_32 PNGAPI +png_get_pCAL(png_const_structrp png_ptr, png_inforp info_ptr, + png_charp *purpose, png_int_32 *X0, png_int_32 *X1, int *type, int *nparams, + png_charp *units, png_charpp *params) +{ + png_debug1(1, "in %s retrieval function", "pCAL"); + + if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_pCAL) + && purpose != NULL && X0 != NULL && X1 != NULL && type != NULL && + nparams != NULL && units != NULL && params != NULL) + { + *purpose = info_ptr->pcal_purpose; + *X0 = info_ptr->pcal_X0; + *X1 = info_ptr->pcal_X1; + *type = (int)info_ptr->pcal_type; + *nparams = (int)info_ptr->pcal_nparams; + *units = info_ptr->pcal_units; + *params = info_ptr->pcal_params; + return (PNG_INFO_pCAL); + } + + return (0); +} +#endif + +#ifdef PNG_sCAL_SUPPORTED +# ifdef PNG_FIXED_POINT_SUPPORTED +# if defined(PNG_FLOATING_ARITHMETIC_SUPPORTED) || \ + defined(PNG_FLOATING_POINT_SUPPORTED) +png_uint_32 PNGAPI +png_get_sCAL_fixed(png_const_structrp png_ptr, png_const_inforp info_ptr, + int *unit, png_fixed_point *width, png_fixed_point *height) +{ + if (png_ptr != NULL && info_ptr != NULL && + (info_ptr->valid & PNG_INFO_sCAL)) + { + *unit = info_ptr->scal_unit; + /*TODO: make this work without FP support; the API is currently eliminated + * if neither floating point APIs nor internal floating point arithmetic + * are enabled. + */ + *width = png_fixed(png_ptr, atof(info_ptr->scal_s_width), "sCAL width"); + *height = png_fixed(png_ptr, atof(info_ptr->scal_s_height), + "sCAL height"); + return (PNG_INFO_sCAL); + } + + return(0); +} +# endif /* FLOATING_ARITHMETIC */ +# endif /* FIXED_POINT */ +# ifdef PNG_FLOATING_POINT_SUPPORTED +png_uint_32 PNGAPI +png_get_sCAL(png_const_structrp png_ptr, png_const_inforp info_ptr, + int *unit, double *width, double *height) +{ + if (png_ptr != NULL && info_ptr != NULL && + (info_ptr->valid & PNG_INFO_sCAL)) + { + *unit = info_ptr->scal_unit; + *width = atof(info_ptr->scal_s_width); + *height = atof(info_ptr->scal_s_height); + return (PNG_INFO_sCAL); + } + + return(0); +} +# endif /* FLOATING POINT */ +png_uint_32 PNGAPI +png_get_sCAL_s(png_const_structrp png_ptr, png_const_inforp info_ptr, + int *unit, png_charpp width, png_charpp height) +{ + if (png_ptr != NULL && info_ptr != NULL && + (info_ptr->valid & PNG_INFO_sCAL)) + { + *unit = info_ptr->scal_unit; + *width = info_ptr->scal_s_width; + *height = info_ptr->scal_s_height; + return (PNG_INFO_sCAL); + } + + return(0); +} +#endif /* sCAL */ + +#ifdef PNG_pHYs_SUPPORTED +png_uint_32 PNGAPI +png_get_pHYs(png_const_structrp png_ptr, png_const_inforp info_ptr, + png_uint_32 *res_x, png_uint_32 *res_y, int *unit_type) +{ + png_uint_32 retval = 0; + + png_debug1(1, "in %s retrieval function", "pHYs"); + + if (png_ptr != NULL && info_ptr != NULL && + (info_ptr->valid & PNG_INFO_pHYs)) + { + if (res_x != NULL) + { + *res_x = info_ptr->x_pixels_per_unit; + retval |= PNG_INFO_pHYs; + } + + if (res_y != NULL) + { + *res_y = info_ptr->y_pixels_per_unit; + retval |= PNG_INFO_pHYs; + } + + if (unit_type != NULL) + { + *unit_type = (int)info_ptr->phys_unit_type; + retval |= PNG_INFO_pHYs; + } + } + + return (retval); +} +#endif /* pHYs */ + +png_uint_32 PNGAPI +png_get_PLTE(png_const_structrp png_ptr, png_inforp info_ptr, + png_colorp *palette, int *num_palette) +{ + png_debug1(1, "in %s retrieval function", "PLTE"); + + if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_PLTE) + && palette != NULL) + { + *palette = info_ptr->palette; + *num_palette = info_ptr->num_palette; + png_debug1(3, "num_palette = %d", *num_palette); + return (PNG_INFO_PLTE); + } + + return (0); +} + +#ifdef PNG_sBIT_SUPPORTED +png_uint_32 PNGAPI +png_get_sBIT(png_const_structrp png_ptr, png_inforp info_ptr, + png_color_8p *sig_bit) +{ + png_debug1(1, "in %s retrieval function", "sBIT"); + + if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_sBIT) + && sig_bit != NULL) + { + *sig_bit = &(info_ptr->sig_bit); + return (PNG_INFO_sBIT); + } + + return (0); +} +#endif + +#ifdef PNG_TEXT_SUPPORTED +int PNGAPI +png_get_text(png_const_structrp png_ptr, png_inforp info_ptr, + png_textp *text_ptr, int *num_text) +{ + if (png_ptr != NULL && info_ptr != NULL && info_ptr->num_text > 0) + { + png_debug1(1, "in 0x%lx retrieval function", + (unsigned long)png_ptr->chunk_name); + + if (text_ptr != NULL) + *text_ptr = info_ptr->text; + + if (num_text != NULL) + *num_text = info_ptr->num_text; + + return info_ptr->num_text; + } + + if (num_text != NULL) + *num_text = 0; + + return(0); +} +#endif + +#ifdef PNG_tIME_SUPPORTED +png_uint_32 PNGAPI +png_get_tIME(png_const_structrp png_ptr, png_inforp info_ptr, + png_timep *mod_time) +{ + png_debug1(1, "in %s retrieval function", "tIME"); + + if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_tIME) + && mod_time != NULL) + { + *mod_time = &(info_ptr->mod_time); + return (PNG_INFO_tIME); + } + + return (0); +} +#endif + +#ifdef PNG_tRNS_SUPPORTED +png_uint_32 PNGAPI +png_get_tRNS(png_const_structrp png_ptr, png_inforp info_ptr, + png_bytep *trans_alpha, int *num_trans, png_color_16p *trans_color) +{ + png_uint_32 retval = 0; + if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_tRNS)) + { + png_debug1(1, "in %s retrieval function", "tRNS"); + + if (info_ptr->color_type == PNG_COLOR_TYPE_PALETTE) + { + if (trans_alpha != NULL) + { + *trans_alpha = info_ptr->trans_alpha; + retval |= PNG_INFO_tRNS; + } + + if (trans_color != NULL) + *trans_color = &(info_ptr->trans_color); + } + + else /* if (info_ptr->color_type != PNG_COLOR_TYPE_PALETTE) */ + { + if (trans_color != NULL) + { + *trans_color = &(info_ptr->trans_color); + retval |= PNG_INFO_tRNS; + } + + if (trans_alpha != NULL) + *trans_alpha = NULL; + } + + if (num_trans != NULL) + { + *num_trans = info_ptr->num_trans; + retval |= PNG_INFO_tRNS; + } + } + + return (retval); +} +#endif + +#ifdef PNG_STORE_UNKNOWN_CHUNKS_SUPPORTED +int PNGAPI +png_get_unknown_chunks(png_const_structrp png_ptr, png_inforp info_ptr, + png_unknown_chunkpp unknowns) +{ + if (png_ptr != NULL && info_ptr != NULL && unknowns != NULL) + { + *unknowns = info_ptr->unknown_chunks; + return info_ptr->unknown_chunks_num; + } + + return (0); +} +#endif + +#ifdef PNG_READ_RGB_TO_GRAY_SUPPORTED +png_byte PNGAPI +png_get_rgb_to_gray_status (png_const_structrp png_ptr) +{ + return (png_byte)(png_ptr ? png_ptr->rgb_to_gray_status : 0); +} +#endif + +#ifdef PNG_USER_CHUNKS_SUPPORTED +png_voidp PNGAPI +png_get_user_chunk_ptr(png_const_structrp png_ptr) +{ + return (png_ptr ? png_ptr->user_chunk_ptr : NULL); +} +#endif + +png_size_t PNGAPI +png_get_compression_buffer_size(png_const_structrp png_ptr) +{ + if (png_ptr == NULL) + return 0; + +# ifdef PNG_WRITE_SUPPORTED + if (png_ptr->mode & PNG_IS_READ_STRUCT) +# endif + { +# ifdef PNG_SEQUENTIAL_READ_SUPPORTED + return png_ptr->IDAT_read_size; +# else + return PNG_IDAT_READ_SIZE; +# endif + } + +# ifdef PNG_WRITE_SUPPORTED + else + return png_ptr->zbuffer_size; +# endif +} + +#ifdef PNG_SET_USER_LIMITS_SUPPORTED +/* These functions were added to libpng 1.2.6 and were enabled + * by default in libpng-1.4.0 */ +png_uint_32 PNGAPI +png_get_user_width_max (png_const_structrp png_ptr) +{ + return (png_ptr ? png_ptr->user_width_max : 0); +} + +png_uint_32 PNGAPI +png_get_user_height_max (png_const_structrp png_ptr) +{ + return (png_ptr ? png_ptr->user_height_max : 0); +} + +/* This function was added to libpng 1.4.0 */ +png_uint_32 PNGAPI +png_get_chunk_cache_max (png_const_structrp png_ptr) +{ + return (png_ptr ? png_ptr->user_chunk_cache_max : 0); +} + +/* This function was added to libpng 1.4.1 */ +png_alloc_size_t PNGAPI +png_get_chunk_malloc_max (png_const_structrp png_ptr) +{ + return (png_ptr ? png_ptr->user_chunk_malloc_max : 0); +} +#endif /* ?PNG_SET_USER_LIMITS_SUPPORTED */ + +/* These functions were added to libpng 1.4.0 */ +#ifdef PNG_IO_STATE_SUPPORTED +png_uint_32 PNGAPI +png_get_io_state (png_const_structrp png_ptr) +{ + return png_ptr->io_state; +} + +png_uint_32 PNGAPI +png_get_io_chunk_type (png_const_structrp png_ptr) +{ + return png_ptr->chunk_name; +} +#endif /* ?PNG_IO_STATE_SUPPORTED */ + +#ifdef PNG_CHECK_FOR_INVALID_INDEX_SUPPORTED +# ifdef PNG_GET_PALETTE_MAX_SUPPORTED +int PNGAPI +png_get_palette_max(png_const_structp png_ptr, png_const_infop info_ptr) +{ + if (png_ptr != NULL && info_ptr != NULL) + return png_ptr->num_palette_max; + + return (-1); +} +# endif +#endif + +#endif /* PNG_READ_SUPPORTED || PNG_WRITE_SUPPORTED */ diff --git a/png/pnginfo.h b/png/pnginfo.h new file mode 100644 index 0000000..26bf265 --- /dev/null +++ b/png/pnginfo.h @@ -0,0 +1,260 @@ + +/* pnginfo.h - header file for PNG reference library + * + * Copyright (c) 1998-2013 Glenn Randers-Pehrson + * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) + * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) + * + * Last changed in libpng 1.6.1 [March 28, 2013] + * + * This code is released under the libpng license. + * For conditions of distribution and use, see the disclaimer + * and license in png.h + */ + + /* png_info is a structure that holds the information in a PNG file so + * that the application can find out the characteristics of the image. + * If you are reading the file, this structure will tell you what is + * in the PNG file. If you are writing the file, fill in the information + * you want to put into the PNG file, using png_set_*() functions, then + * call png_write_info(). + * + * The names chosen should be very close to the PNG specification, so + * consult that document for information about the meaning of each field. + * + * With libpng < 0.95, it was only possible to directly set and read the + * the values in the png_info_struct, which meant that the contents and + * order of the values had to remain fixed. With libpng 0.95 and later, + * however, there are now functions that abstract the contents of + * png_info_struct from the application, so this makes it easier to use + * libpng with dynamic libraries, and even makes it possible to use + * libraries that don't have all of the libpng ancillary chunk-handing + * functionality. In libpng-1.5.0 this was moved into a separate private + * file that is not visible to applications. + * + * The following members may have allocated storage attached that should be + * cleaned up before the structure is discarded: palette, trans, text, + * pcal_purpose, pcal_units, pcal_params, hist, iccp_name, iccp_profile, + * splt_palettes, scal_unit, row_pointers, and unknowns. By default, these + * are automatically freed when the info structure is deallocated, if they were + * allocated internally by libpng. This behavior can be changed by means + * of the png_data_freer() function. + * + * More allocation details: all the chunk-reading functions that + * change these members go through the corresponding png_set_* + * functions. A function to clear these members is available: see + * png_free_data(). The png_set_* functions do not depend on being + * able to point info structure members to any of the storage they are + * passed (they make their own copies), EXCEPT that the png_set_text + * functions use the same storage passed to them in the text_ptr or + * itxt_ptr structure argument, and the png_set_rows and png_set_unknowns + * functions do not make their own copies. + */ +#ifndef PNGINFO_H +#define PNGINFO_H + +struct png_info_def +{ + /* The following are necessary for every PNG file */ + png_uint_32 width; /* width of image in pixels (from IHDR) */ + png_uint_32 height; /* height of image in pixels (from IHDR) */ + png_uint_32 valid; /* valid chunk data (see PNG_INFO_ below) */ + png_size_t rowbytes; /* bytes needed to hold an untransformed row */ + png_colorp palette; /* array of color values (valid & PNG_INFO_PLTE) */ + png_uint_16 num_palette; /* number of color entries in "palette" (PLTE) */ + png_uint_16 num_trans; /* number of transparent palette color (tRNS) */ + png_byte bit_depth; /* 1, 2, 4, 8, or 16 bits/channel (from IHDR) */ + png_byte color_type; /* see PNG_COLOR_TYPE_ below (from IHDR) */ + /* The following three should have been named *_method not *_type */ + png_byte compression_type; /* must be PNG_COMPRESSION_TYPE_BASE (IHDR) */ + png_byte filter_type; /* must be PNG_FILTER_TYPE_BASE (from IHDR) */ + png_byte interlace_type; /* One of PNG_INTERLACE_NONE, PNG_INTERLACE_ADAM7 */ + + /* The following are set by png_set_IHDR, called from the application on + * write, but the are never actually used by the write code. + */ + png_byte channels; /* number of data channels per pixel (1, 2, 3, 4) */ + png_byte pixel_depth; /* number of bits per pixel */ + png_byte spare_byte; /* to align the data, and for future use */ + +#ifdef PNG_READ_SUPPORTED + /* This is never set during write */ + png_byte signature[8]; /* magic bytes read by libpng from start of file */ +#endif + + /* The rest of the data is optional. If you are reading, check the + * valid field to see if the information in these are valid. If you + * are writing, set the valid field to those chunks you want written, + * and initialize the appropriate fields below. + */ + +#if defined(PNG_COLORSPACE_SUPPORTED) || defined(PNG_GAMMA_SUPPORTED) + /* png_colorspace only contains 'flags' if neither GAMMA or COLORSPACE are + * defined. When COLORSPACE is switched on all the colorspace-defining + * chunks should be enabled, when GAMMA is switched on all the gamma-defining + * chunks should be enabled. If this is not done it becomes possible to read + * inconsistent PNG files and assign a probably incorrect interpretation to + * the information. (In other words, by carefully choosing which chunks to + * recognize the system configuration can select an interpretation for PNG + * files containing ambiguous data and this will result in inconsistent + * behavior between different libpng builds!) + */ + png_colorspace colorspace; +#endif + +#ifdef PNG_iCCP_SUPPORTED + /* iCCP chunk data. */ + png_charp iccp_name; /* profile name */ + png_bytep iccp_profile; /* International Color Consortium profile data */ + png_uint_32 iccp_proflen; /* ICC profile data length */ +#endif + +#ifdef PNG_TEXT_SUPPORTED + /* The tEXt, and zTXt chunks contain human-readable textual data in + * uncompressed, compressed, and optionally compressed forms, respectively. + * The data in "text" is an array of pointers to uncompressed, + * null-terminated C strings. Each chunk has a keyword that describes the + * textual data contained in that chunk. Keywords are not required to be + * unique, and the text string may be empty. Any number of text chunks may + * be in an image. + */ + int num_text; /* number of comments read or comments to write */ + int max_text; /* current size of text array */ + png_textp text; /* array of comments read or comments to write */ +#endif /* PNG_TEXT_SUPPORTED */ + +#ifdef PNG_tIME_SUPPORTED + /* The tIME chunk holds the last time the displayed image data was + * modified. See the png_time struct for the contents of this struct. + */ + png_time mod_time; +#endif + +#ifdef PNG_sBIT_SUPPORTED + /* The sBIT chunk specifies the number of significant high-order bits + * in the pixel data. Values are in the range [1, bit_depth], and are + * only specified for the channels in the pixel data. The contents of + * the low-order bits is not specified. Data is valid if + * (valid & PNG_INFO_sBIT) is non-zero. + */ + png_color_8 sig_bit; /* significant bits in color channels */ +#endif + +#if defined(PNG_tRNS_SUPPORTED) || defined(PNG_READ_EXPAND_SUPPORTED) || \ +defined(PNG_READ_BACKGROUND_SUPPORTED) + /* The tRNS chunk supplies transparency data for paletted images and + * other image types that don't need a full alpha channel. There are + * "num_trans" transparency values for a paletted image, stored in the + * same order as the palette colors, starting from index 0. Values + * for the data are in the range [0, 255], ranging from fully transparent + * to fully opaque, respectively. For non-paletted images, there is a + * single color specified that should be treated as fully transparent. + * Data is valid if (valid & PNG_INFO_tRNS) is non-zero. + */ + png_bytep trans_alpha; /* alpha values for paletted image */ + png_color_16 trans_color; /* transparent color for non-palette image */ +#endif + +#if defined(PNG_bKGD_SUPPORTED) || defined(PNG_READ_BACKGROUND_SUPPORTED) + /* The bKGD chunk gives the suggested image background color if the + * display program does not have its own background color and the image + * is needs to composited onto a background before display. The colors + * in "background" are normally in the same color space/depth as the + * pixel data. Data is valid if (valid & PNG_INFO_bKGD) is non-zero. + */ + png_color_16 background; +#endif + +#ifdef PNG_oFFs_SUPPORTED + /* The oFFs chunk gives the offset in "offset_unit_type" units rightwards + * and downwards from the top-left corner of the display, page, or other + * application-specific co-ordinate space. See the PNG_OFFSET_ defines + * below for the unit types. Valid if (valid & PNG_INFO_oFFs) non-zero. + */ + png_int_32 x_offset; /* x offset on page */ + png_int_32 y_offset; /* y offset on page */ + png_byte offset_unit_type; /* offset units type */ +#endif + +#ifdef PNG_pHYs_SUPPORTED + /* The pHYs chunk gives the physical pixel density of the image for + * display or printing in "phys_unit_type" units (see PNG_RESOLUTION_ + * defines below). Data is valid if (valid & PNG_INFO_pHYs) is non-zero. + */ + png_uint_32 x_pixels_per_unit; /* horizontal pixel density */ + png_uint_32 y_pixels_per_unit; /* vertical pixel density */ + png_byte phys_unit_type; /* resolution type (see PNG_RESOLUTION_ below) */ +#endif + +#ifdef PNG_hIST_SUPPORTED + /* The hIST chunk contains the relative frequency or importance of the + * various palette entries, so that a viewer can intelligently select a + * reduced-color palette, if required. Data is an array of "num_palette" + * values in the range [0,65535]. Data valid if (valid & PNG_INFO_hIST) + * is non-zero. + */ + png_uint_16p hist; +#endif + +#ifdef PNG_pCAL_SUPPORTED + /* The pCAL chunk describes a transformation between the stored pixel + * values and original physical data values used to create the image. + * The integer range [0, 2^bit_depth - 1] maps to the floating-point + * range given by [pcal_X0, pcal_X1], and are further transformed by a + * (possibly non-linear) transformation function given by "pcal_type" + * and "pcal_params" into "pcal_units". Please see the PNG_EQUATION_ + * defines below, and the PNG-Group's PNG extensions document for a + * complete description of the transformations and how they should be + * implemented, and for a description of the ASCII parameter strings. + * Data values are valid if (valid & PNG_INFO_pCAL) non-zero. + */ + png_charp pcal_purpose; /* pCAL chunk description string */ + png_int_32 pcal_X0; /* minimum value */ + png_int_32 pcal_X1; /* maximum value */ + png_charp pcal_units; /* Latin-1 string giving physical units */ + png_charpp pcal_params; /* ASCII strings containing parameter values */ + png_byte pcal_type; /* equation type (see PNG_EQUATION_ below) */ + png_byte pcal_nparams; /* number of parameters given in pcal_params */ +#endif + +/* New members added in libpng-1.0.6 */ + png_uint_32 free_me; /* flags items libpng is responsible for freeing */ + +#ifdef PNG_STORE_UNKNOWN_CHUNKS_SUPPORTED + /* Storage for unknown chunks that the library doesn't recognize. */ + png_unknown_chunkp unknown_chunks; + + /* The type of this field is limited by the type of + * png_struct::user_chunk_cache_max, else overflow can occur. + */ + int unknown_chunks_num; +#endif + +#ifdef PNG_sPLT_SUPPORTED + /* Data on sPLT chunks (there may be more than one). */ + png_sPLT_tp splt_palettes; + int splt_palettes_num; /* Match type returned by png_get API */ +#endif + +#ifdef PNG_sCAL_SUPPORTED + /* The sCAL chunk describes the actual physical dimensions of the + * subject matter of the graphic. The chunk contains a unit specification + * a byte value, and two ASCII strings representing floating-point + * values. The values are width and height corresponsing to one pixel + * in the image. Data values are valid if (valid & PNG_INFO_sCAL) is + * non-zero. + */ + png_byte scal_unit; /* unit of physical scale */ + png_charp scal_s_width; /* string containing height */ + png_charp scal_s_height; /* string containing width */ +#endif + +#ifdef PNG_INFO_IMAGE_SUPPORTED + /* Memory has been allocated if (valid & PNG_ALLOCATED_INFO_ROWS) + non-zero */ + /* Data valid if (valid & PNG_INFO_IDAT) non-zero */ + png_bytepp row_pointers; /* the image bits */ +#endif + +}; +#endif /* PNGINFO_H */ diff --git a/png/pnglibconf.h b/png/pnglibconf.h new file mode 100644 index 0000000..08ee25c --- /dev/null +++ b/png/pnglibconf.h @@ -0,0 +1,210 @@ +/* libpng 1.6.12 STANDARD API DEFINITION */ + +/* pnglibconf.h - library build configuration */ + +/* Libpng version 1.6.12 - June 12, 2014 */ + +/* Copyright (c) 1998-2014 Glenn Randers-Pehrson */ + +/* This code is released under the libpng license. */ +/* For conditions of distribution and use, see the disclaimer */ +/* and license in png.h */ + +/* pnglibconf.h */ +/* Machine generated file: DO NOT EDIT */ +/* Derived from: scripts/pnglibconf.dfa */ +#ifndef PNGLCONF_H +#define PNGLCONF_H +/* options */ +#define PNG_16BIT_SUPPORTED +#define PNG_ALIGNED_MEMORY_SUPPORTED +/*#undef PNG_ARM_NEON_API_SUPPORTED*/ +/*#undef PNG_ARM_NEON_CHECK_SUPPORTED*/ +#define PNG_BENIGN_ERRORS_SUPPORTED +#define PNG_BENIGN_READ_ERRORS_SUPPORTED +/*#undef PNG_BENIGN_WRITE_ERRORS_SUPPORTED*/ +#define PNG_BUILD_GRAYSCALE_PALETTE_SUPPORTED +#define PNG_CHECK_FOR_INVALID_INDEX_SUPPORTED +#define PNG_COLORSPACE_SUPPORTED +#define PNG_CONSOLE_IO_SUPPORTED +#define PNG_CONVERT_tIME_SUPPORTED +#define PNG_EASY_ACCESS_SUPPORTED +/*#undef PNG_ERROR_NUMBERS_SUPPORTED*/ +#define PNG_ERROR_TEXT_SUPPORTED +#define PNG_FIXED_POINT_SUPPORTED +#define PNG_FLOATING_ARITHMETIC_SUPPORTED +#define PNG_FLOATING_POINT_SUPPORTED +#define PNG_FORMAT_AFIRST_SUPPORTED +#define PNG_FORMAT_BGR_SUPPORTED +#define PNG_GAMMA_SUPPORTED +#define PNG_GET_PALETTE_MAX_SUPPORTED +#define PNG_HANDLE_AS_UNKNOWN_SUPPORTED +#define PNG_INCH_CONVERSIONS_SUPPORTED +#define PNG_INFO_IMAGE_SUPPORTED +#define PNG_IO_STATE_SUPPORTED +#define PNG_MNG_FEATURES_SUPPORTED +#define PNG_POINTER_INDEXING_SUPPORTED +#define PNG_PROGRESSIVE_READ_SUPPORTED +#define PNG_READ_16BIT_SUPPORTED +#define PNG_READ_ALPHA_MODE_SUPPORTED +#define PNG_READ_ANCILLARY_CHUNKS_SUPPORTED +#define PNG_READ_BACKGROUND_SUPPORTED +#define PNG_READ_BGR_SUPPORTED +#define PNG_READ_CHECK_FOR_INVALID_INDEX_SUPPORTED +#define PNG_READ_COMPOSITE_NODIV_SUPPORTED +#define PNG_READ_COMPRESSED_TEXT_SUPPORTED +#define PNG_READ_EXPAND_16_SUPPORTED +#define PNG_READ_EXPAND_SUPPORTED +#define PNG_READ_FILLER_SUPPORTED +#define PNG_READ_GAMMA_SUPPORTED +#define PNG_READ_GET_PALETTE_MAX_SUPPORTED +#define PNG_READ_GRAY_TO_RGB_SUPPORTED +#define PNG_READ_INTERLACING_SUPPORTED +#define PNG_READ_INT_FUNCTIONS_SUPPORTED +#define PNG_READ_INVERT_ALPHA_SUPPORTED +#define PNG_READ_INVERT_SUPPORTED +#define PNG_READ_OPT_PLTE_SUPPORTED +#define PNG_READ_PACKSWAP_SUPPORTED +#define PNG_READ_PACK_SUPPORTED +#define PNG_READ_QUANTIZE_SUPPORTED +#define PNG_READ_RGB_TO_GRAY_SUPPORTED +#define PNG_READ_SCALE_16_TO_8_SUPPORTED +#define PNG_READ_SHIFT_SUPPORTED +#define PNG_READ_STRIP_16_TO_8_SUPPORTED +#define PNG_READ_STRIP_ALPHA_SUPPORTED +#define PNG_READ_SUPPORTED +#define PNG_READ_SWAP_ALPHA_SUPPORTED +#define PNG_READ_SWAP_SUPPORTED +#define PNG_READ_TEXT_SUPPORTED +#define PNG_READ_TRANSFORMS_SUPPORTED +#define PNG_READ_UNKNOWN_CHUNKS_SUPPORTED +#define PNG_READ_USER_CHUNKS_SUPPORTED +#define PNG_READ_USER_TRANSFORM_SUPPORTED +#define PNG_READ_bKGD_SUPPORTED +#define PNG_READ_cHRM_SUPPORTED +#define PNG_READ_gAMA_SUPPORTED +#define PNG_READ_hIST_SUPPORTED +#define PNG_READ_iCCP_SUPPORTED +#define PNG_READ_iTXt_SUPPORTED +#define PNG_READ_oFFs_SUPPORTED +#define PNG_READ_pCAL_SUPPORTED +#define PNG_READ_pHYs_SUPPORTED +#define PNG_READ_sBIT_SUPPORTED +#define PNG_READ_sCAL_SUPPORTED +#define PNG_READ_sPLT_SUPPORTED +#define PNG_READ_sRGB_SUPPORTED +#define PNG_READ_tEXt_SUPPORTED +#define PNG_READ_tIME_SUPPORTED +#define PNG_READ_tRNS_SUPPORTED +#define PNG_READ_zTXt_SUPPORTED +/*#undef PNG_SAFE_LIMITS_SUPPORTED*/ +#define PNG_SAVE_INT_32_SUPPORTED +#define PNG_SAVE_UNKNOWN_CHUNKS_SUPPORTED +#define PNG_SEQUENTIAL_READ_SUPPORTED +#define PNG_SETJMP_SUPPORTED +#define PNG_SET_CHUNK_CACHE_LIMIT_SUPPORTED +#define PNG_SET_CHUNK_MALLOC_LIMIT_SUPPORTED +#define PNG_SET_OPTION_SUPPORTED +#define PNG_SET_UNKNOWN_CHUNKS_SUPPORTED +#define PNG_SET_USER_LIMITS_SUPPORTED +#define PNG_SIMPLIFIED_READ_AFIRST_SUPPORTED +#define PNG_SIMPLIFIED_READ_BGR_SUPPORTED +#define PNG_SIMPLIFIED_READ_SUPPORTED +#define PNG_SIMPLIFIED_WRITE_AFIRST_SUPPORTED +#define PNG_SIMPLIFIED_WRITE_BGR_SUPPORTED +#define PNG_SIMPLIFIED_WRITE_SUPPORTED +#define PNG_STDIO_SUPPORTED +#define PNG_STORE_UNKNOWN_CHUNKS_SUPPORTED +#define PNG_TEXT_SUPPORTED +#define PNG_TIME_RFC1123_SUPPORTED +#define PNG_UNKNOWN_CHUNKS_SUPPORTED +#define PNG_USER_CHUNKS_SUPPORTED +#define PNG_USER_LIMITS_SUPPORTED +#define PNG_USER_MEM_SUPPORTED +#define PNG_USER_TRANSFORM_INFO_SUPPORTED +#define PNG_USER_TRANSFORM_PTR_SUPPORTED +#define PNG_WARNINGS_SUPPORTED +#define PNG_WRITE_16BIT_SUPPORTED +#define PNG_WRITE_ANCILLARY_CHUNKS_SUPPORTED +#define PNG_WRITE_BGR_SUPPORTED +#define PNG_WRITE_CHECK_FOR_INVALID_INDEX_SUPPORTED +#define PNG_WRITE_COMPRESSED_TEXT_SUPPORTED +#define PNG_WRITE_CUSTOMIZE_ZTXT_COMPRESSION_SUPPORTED +#define PNG_WRITE_FILLER_SUPPORTED +#define PNG_WRITE_FILTER_SUPPORTED +#define PNG_WRITE_FLUSH_SUPPORTED +#define PNG_WRITE_GET_PALETTE_MAX_SUPPORTED +#define PNG_WRITE_INTERLACING_SUPPORTED +#define PNG_WRITE_INT_FUNCTIONS_SUPPORTED +#define PNG_WRITE_INVERT_ALPHA_SUPPORTED +#define PNG_WRITE_INVERT_SUPPORTED +#define PNG_WRITE_OPTIMIZE_CMF_SUPPORTED +#define PNG_WRITE_PACKSWAP_SUPPORTED +#define PNG_WRITE_PACK_SUPPORTED +#define PNG_WRITE_SHIFT_SUPPORTED +#define PNG_WRITE_SUPPORTED +#define PNG_WRITE_SWAP_ALPHA_SUPPORTED +#define PNG_WRITE_SWAP_SUPPORTED +#define PNG_WRITE_TEXT_SUPPORTED +#define PNG_WRITE_TRANSFORMS_SUPPORTED +#define PNG_WRITE_UNKNOWN_CHUNKS_SUPPORTED +#define PNG_WRITE_USER_TRANSFORM_SUPPORTED +#define PNG_WRITE_WEIGHTED_FILTER_SUPPORTED +#define PNG_WRITE_bKGD_SUPPORTED +#define PNG_WRITE_cHRM_SUPPORTED +#define PNG_WRITE_gAMA_SUPPORTED +#define PNG_WRITE_hIST_SUPPORTED +#define PNG_WRITE_iCCP_SUPPORTED +#define PNG_WRITE_iTXt_SUPPORTED +#define PNG_WRITE_oFFs_SUPPORTED +#define PNG_WRITE_pCAL_SUPPORTED +#define PNG_WRITE_pHYs_SUPPORTED +#define PNG_WRITE_sBIT_SUPPORTED +#define PNG_WRITE_sCAL_SUPPORTED +#define PNG_WRITE_sPLT_SUPPORTED +#define PNG_WRITE_sRGB_SUPPORTED +#define PNG_WRITE_tEXt_SUPPORTED +#define PNG_WRITE_tIME_SUPPORTED +#define PNG_WRITE_tRNS_SUPPORTED +#define PNG_WRITE_zTXt_SUPPORTED +#define PNG_bKGD_SUPPORTED +#define PNG_cHRM_SUPPORTED +#define PNG_gAMA_SUPPORTED +#define PNG_hIST_SUPPORTED +#define PNG_iCCP_SUPPORTED +#define PNG_iTXt_SUPPORTED +#define PNG_oFFs_SUPPORTED +#define PNG_pCAL_SUPPORTED +#define PNG_pHYs_SUPPORTED +#define PNG_sBIT_SUPPORTED +#define PNG_sCAL_SUPPORTED +#define PNG_sPLT_SUPPORTED +#define PNG_sRGB_SUPPORTED +#define PNG_tEXt_SUPPORTED +#define PNG_tIME_SUPPORTED +#define PNG_tRNS_SUPPORTED +#define PNG_zTXt_SUPPORTED +/* end of options */ +/* settings */ +#define PNG_API_RULE 0 +#define PNG_COST_SHIFT 3 +#define PNG_DEFAULT_READ_MACROS 1 +#define PNG_GAMMA_THRESHOLD_FIXED 5000 +#define PNG_IDAT_READ_SIZE PNG_ZBUF_SIZE +#define PNG_INFLATE_BUF_SIZE 1024 +#define PNG_MAX_GAMMA_8 11 +#define PNG_QUANTIZE_BLUE_BITS 5 +#define PNG_QUANTIZE_GREEN_BITS 5 +#define PNG_QUANTIZE_RED_BITS 5 +#define PNG_TEXT_Z_DEFAULT_COMPRESSION (-1) +#define PNG_TEXT_Z_DEFAULT_STRATEGY 0 +#define PNG_WEIGHT_SHIFT 8 +#define PNG_ZBUF_SIZE 8192 +#define PNG_ZLIB_VERNUM 0 /* unknown */ +#define PNG_Z_DEFAULT_COMPRESSION (-1) +#define PNG_Z_DEFAULT_NOFILTER_STRATEGY 0 +#define PNG_Z_DEFAULT_STRATEGY 1 +#define PNG_sCAL_PRECISION 5 +#define PNG_sRGB_PROFILE_CHECKS 2 +/* end of settings */ +#endif /* PNGLCONF_H */ diff --git a/png/pngmem.c b/png/pngmem.c new file mode 100644 index 0000000..8ee0866 --- /dev/null +++ b/png/pngmem.c @@ -0,0 +1,281 @@ + +/* pngmem.c - stub functions for memory allocation + * + * Last changed in libpng 1.6.8 [December 19, 2013] + * Copyright (c) 1998-2013 Glenn Randers-Pehrson + * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) + * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) + * + * This code is released under the libpng license. + * For conditions of distribution and use, see the disclaimer + * and license in png.h + * + * This file provides a location for all memory allocation. Users who + * need special memory handling are expected to supply replacement + * functions for png_malloc() and png_free(), and to use + * png_create_read_struct_2() and png_create_write_struct_2() to + * identify the replacement functions. + */ + +#include "pngpriv.h" + +#if defined(PNG_READ_SUPPORTED) || defined(PNG_WRITE_SUPPORTED) +/* Free a png_struct */ +void /* PRIVATE */ +png_destroy_png_struct(png_structrp png_ptr) +{ + if (png_ptr != NULL) + { + /* png_free might call png_error and may certainly call + * png_get_mem_ptr, so fake a temporary png_struct to support this. + */ + png_struct dummy_struct = *png_ptr; + memset(png_ptr, 0, (sizeof *png_ptr)); + png_free(&dummy_struct, png_ptr); + +# ifdef PNG_SETJMP_SUPPORTED + /* We may have a jmp_buf left to deallocate. */ + png_free_jmpbuf(&dummy_struct); +# endif + } +} + +/* Allocate memory. For reasonable files, size should never exceed + * 64K. However, zlib may allocate more then 64K if you don't tell + * it not to. See zconf.h and png.h for more information. zlib does + * need to allocate exactly 64K, so whatever you call here must + * have the ability to do that. + */ +PNG_FUNCTION(png_voidp,PNGAPI +png_calloc,(png_const_structrp png_ptr, png_alloc_size_t size),PNG_ALLOCATED) +{ + png_voidp ret; + + ret = png_malloc(png_ptr, size); + + if (ret != NULL) + memset(ret, 0, size); + + return ret; +} + +/* png_malloc_base, an internal function added at libpng 1.6.0, does the work of + * allocating memory, taking into account limits and PNG_USER_MEM_SUPPORTED. + * Checking and error handling must happen outside this routine; it returns NULL + * if the allocation cannot be done (for any reason.) + */ +PNG_FUNCTION(png_voidp /* PRIVATE */, +png_malloc_base,(png_const_structrp png_ptr, png_alloc_size_t size), + PNG_ALLOCATED) +{ + /* Moved to png_malloc_base from png_malloc_default in 1.6.0; the DOS + * allocators have also been removed in 1.6.0, so any 16-bit system now has + * to implement a user memory handler. This checks to be sure it isn't + * called with big numbers. + */ +#ifndef PNG_USER_MEM_SUPPORTED + PNG_UNUSED(png_ptr) +#endif + + if (size > 0 && size <= PNG_SIZE_MAX +# ifdef PNG_MAX_MALLOC_64K + && size <= 65536U +# endif + ) + { +#ifdef PNG_USER_MEM_SUPPORTED + if (png_ptr != NULL && png_ptr->malloc_fn != NULL) + return png_ptr->malloc_fn(png_constcast(png_structrp,png_ptr), size); + + else +#endif + return malloc((size_t)size); /* checked for truncation above */ + } + + else + return NULL; +} + +#if defined(PNG_TEXT_SUPPORTED) || defined(PNG_sPLT_SUPPORTED) ||\ + defined(PNG_STORE_UNKNOWN_CHUNKS_SUPPORTED) +/* This is really here only to work round a spurious warning in GCC 4.6 and 4.7 + * that arises because of the checks in png_realloc_array that are repeated in + * png_malloc_array. + */ +static png_voidp +png_malloc_array_checked(png_const_structrp png_ptr, int nelements, + size_t element_size) +{ + png_alloc_size_t req = nelements; /* known to be > 0 */ + + if (req <= PNG_SIZE_MAX/element_size) + return png_malloc_base(png_ptr, req * element_size); + + /* The failure case when the request is too large */ + return NULL; +} + +PNG_FUNCTION(png_voidp /* PRIVATE */, +png_malloc_array,(png_const_structrp png_ptr, int nelements, + size_t element_size),PNG_ALLOCATED) +{ + if (nelements <= 0 || element_size == 0) + png_error(png_ptr, "internal error: array alloc"); + + return png_malloc_array_checked(png_ptr, nelements, element_size); +} + +PNG_FUNCTION(png_voidp /* PRIVATE */, +png_realloc_array,(png_const_structrp png_ptr, png_const_voidp old_array, + int old_elements, int add_elements, size_t element_size),PNG_ALLOCATED) +{ + /* These are internal errors: */ + if (add_elements <= 0 || element_size == 0 || old_elements < 0 || + (old_array == NULL && old_elements > 0)) + png_error(png_ptr, "internal error: array realloc"); + + /* Check for overflow on the elements count (so the caller does not have to + * check.) + */ + if (add_elements <= INT_MAX - old_elements) + { + png_voidp new_array = png_malloc_array_checked(png_ptr, + old_elements+add_elements, element_size); + + if (new_array != NULL) + { + /* Because png_malloc_array worked the size calculations below cannot + * overflow. + */ + if (old_elements > 0) + memcpy(new_array, old_array, element_size*(unsigned)old_elements); + + memset((char*)new_array + element_size*(unsigned)old_elements, 0, + element_size*(unsigned)add_elements); + + return new_array; + } + } + + return NULL; /* error */ +} +#endif /* TEXT || sPLT || STORE_UNKNOWN_CHUNKS */ + +/* Various functions that have different error handling are derived from this. + * png_malloc always exists, but if PNG_USER_MEM_SUPPORTED is defined a separate + * function png_malloc_default is also provided. + */ +PNG_FUNCTION(png_voidp,PNGAPI +png_malloc,(png_const_structrp png_ptr, png_alloc_size_t size),PNG_ALLOCATED) +{ + png_voidp ret; + + if (png_ptr == NULL) + return NULL; + + ret = png_malloc_base(png_ptr, size); + + if (ret == NULL) + png_error(png_ptr, "Out of memory"); /* 'm' means png_malloc */ + + return ret; +} + +#ifdef PNG_USER_MEM_SUPPORTED +PNG_FUNCTION(png_voidp,PNGAPI +png_malloc_default,(png_const_structrp png_ptr, png_alloc_size_t size), + PNG_ALLOCATED PNG_DEPRECATED) +{ + png_voidp ret; + + if (png_ptr == NULL) + return NULL; + + /* Passing 'NULL' here bypasses the application provided memory handler. */ + ret = png_malloc_base(NULL/*use malloc*/, size); + + if (ret == NULL) + png_error(png_ptr, "Out of Memory"); /* 'M' means png_malloc_default */ + + return ret; +} +#endif /* PNG_USER_MEM_SUPPORTED */ + +/* This function was added at libpng version 1.2.3. The png_malloc_warn() + * function will issue a png_warning and return NULL instead of issuing a + * png_error, if it fails to allocate the requested memory. + */ +PNG_FUNCTION(png_voidp,PNGAPI +png_malloc_warn,(png_const_structrp png_ptr, png_alloc_size_t size), + PNG_ALLOCATED) +{ + if (png_ptr != NULL) + { + png_voidp ret = png_malloc_base(png_ptr, size); + + if (ret != NULL) + return ret; + + png_warning(png_ptr, "Out of memory"); + } + + return NULL; +} + +/* Free a pointer allocated by png_malloc(). If ptr is NULL, return + * without taking any action. + */ +void PNGAPI +png_free(png_const_structrp png_ptr, png_voidp ptr) +{ + if (png_ptr == NULL || ptr == NULL) + return; + +#ifdef PNG_USER_MEM_SUPPORTED + if (png_ptr->free_fn != NULL) + png_ptr->free_fn(png_constcast(png_structrp,png_ptr), ptr); + + else + png_free_default(png_ptr, ptr); +} + +PNG_FUNCTION(void,PNGAPI +png_free_default,(png_const_structrp png_ptr, png_voidp ptr),PNG_DEPRECATED) +{ + if (png_ptr == NULL || ptr == NULL) + return; +#endif /* PNG_USER_MEM_SUPPORTED */ + + free(ptr); +} + +#ifdef PNG_USER_MEM_SUPPORTED +/* This function is called when the application wants to use another method + * of allocating and freeing memory. + */ +void PNGAPI +png_set_mem_fn(png_structrp png_ptr, png_voidp mem_ptr, png_malloc_ptr + malloc_fn, png_free_ptr free_fn) +{ + if (png_ptr != NULL) + { + png_ptr->mem_ptr = mem_ptr; + png_ptr->malloc_fn = malloc_fn; + png_ptr->free_fn = free_fn; + } +} + +/* This function returns a pointer to the mem_ptr associated with the user + * functions. The application should free any memory associated with this + * pointer before png_write_destroy and png_read_destroy are called. + */ +png_voidp PNGAPI +png_get_mem_ptr(png_const_structrp png_ptr) +{ + if (png_ptr == NULL) + return NULL; + + return png_ptr->mem_ptr; +} +#endif /* PNG_USER_MEM_SUPPORTED */ +#endif /* PNG_READ_SUPPORTED || PNG_WRITE_SUPPORTED */ diff --git a/png/pngnow.png b/png/pngnow.png new file mode 100644 index 0000000..82793eb Binary files /dev/null and b/png/pngnow.png differ diff --git a/png/pngpread.c b/png/pngpread.c new file mode 100644 index 0000000..819db03 --- /dev/null +++ b/png/pngpread.c @@ -0,0 +1,1286 @@ + +/* pngpread.c - read a png file in push mode + * + * Last changed in libpng 1.6.11 [June 12, 2014] + * Copyright (c) 1998-2014 Glenn Randers-Pehrson + * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) + * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) + * + * This code is released under the libpng license. + * For conditions of distribution and use, see the disclaimer + * and license in png.h + */ + +#include "pngpriv.h" + +#ifdef PNG_PROGRESSIVE_READ_SUPPORTED + +/* Push model modes */ +#define PNG_READ_SIG_MODE 0 +#define PNG_READ_CHUNK_MODE 1 +#define PNG_READ_IDAT_MODE 2 +#define PNG_SKIP_MODE 3 +#define PNG_READ_tEXt_MODE 4 +#define PNG_READ_zTXt_MODE 5 +#define PNG_READ_DONE_MODE 6 +#define PNG_READ_iTXt_MODE 7 +#define PNG_ERROR_MODE 8 + +void PNGAPI +png_process_data(png_structrp png_ptr, png_inforp info_ptr, + png_bytep buffer, png_size_t buffer_size) +{ + if (png_ptr == NULL || info_ptr == NULL) + return; + + png_push_restore_buffer(png_ptr, buffer, buffer_size); + + while (png_ptr->buffer_size) + { + png_process_some_data(png_ptr, info_ptr); + } +} + +png_size_t PNGAPI +png_process_data_pause(png_structrp png_ptr, int save) +{ + if (png_ptr != NULL) + { + /* It's easiest for the caller if we do the save, then the caller doesn't + * have to supply the same data again: + */ + if (save != 0) + png_push_save_buffer(png_ptr); + else + { + /* This includes any pending saved bytes: */ + png_size_t remaining = png_ptr->buffer_size; + png_ptr->buffer_size = 0; + + /* So subtract the saved buffer size, unless all the data + * is actually 'saved', in which case we just return 0 + */ + if (png_ptr->save_buffer_size < remaining) + return remaining - png_ptr->save_buffer_size; + } + } + + return 0; +} + +png_uint_32 PNGAPI +png_process_data_skip(png_structrp png_ptr) +{ + png_uint_32 remaining = 0; + + if (png_ptr != NULL && png_ptr->process_mode == PNG_SKIP_MODE && + png_ptr->skip_length > 0) + { + /* At the end of png_process_data the buffer size must be 0 (see the loop + * above) so we can detect a broken call here: + */ + if (png_ptr->buffer_size != 0) + png_error(png_ptr, + "png_process_data_skip called inside png_process_data"); + + /* If is impossible for there to be a saved buffer at this point - + * otherwise we could not be in SKIP mode. This will also happen if + * png_process_skip is called inside png_process_data (but only very + * rarely.) + */ + if (png_ptr->save_buffer_size != 0) + png_error(png_ptr, "png_process_data_skip called with saved data"); + + remaining = png_ptr->skip_length; + png_ptr->skip_length = 0; + png_ptr->process_mode = PNG_READ_CHUNK_MODE; + } + + return remaining; +} + +/* What we do with the incoming data depends on what we were previously + * doing before we ran out of data... + */ +void /* PRIVATE */ +png_process_some_data(png_structrp png_ptr, png_inforp info_ptr) +{ + if (png_ptr == NULL) + return; + + switch (png_ptr->process_mode) + { + case PNG_READ_SIG_MODE: + { + png_push_read_sig(png_ptr, info_ptr); + break; + } + + case PNG_READ_CHUNK_MODE: + { + png_push_read_chunk(png_ptr, info_ptr); + break; + } + + case PNG_READ_IDAT_MODE: + { + png_push_read_IDAT(png_ptr); + break; + } + + case PNG_SKIP_MODE: + { + png_push_crc_finish(png_ptr); + break; + } + + default: + { + png_ptr->buffer_size = 0; + break; + } + } +} + +/* Read any remaining signature bytes from the stream and compare them with + * the correct PNG signature. It is possible that this routine is called + * with bytes already read from the signature, either because they have been + * checked by the calling application, or because of multiple calls to this + * routine. + */ +void /* PRIVATE */ +png_push_read_sig(png_structrp png_ptr, png_inforp info_ptr) +{ + png_size_t num_checked = png_ptr->sig_bytes, /* SAFE, does not exceed 8 */ + num_to_check = 8 - num_checked; + + if (png_ptr->buffer_size < num_to_check) + { + num_to_check = png_ptr->buffer_size; + } + + png_push_fill_buffer(png_ptr, &(info_ptr->signature[num_checked]), + num_to_check); + png_ptr->sig_bytes = (png_byte)(png_ptr->sig_bytes + num_to_check); + + if (png_sig_cmp(info_ptr->signature, num_checked, num_to_check)) + { + if (num_checked < 4 && + png_sig_cmp(info_ptr->signature, num_checked, num_to_check - 4)) + png_error(png_ptr, "Not a PNG file"); + + else + png_error(png_ptr, "PNG file corrupted by ASCII conversion"); + } + else + { + if (png_ptr->sig_bytes >= 8) + { + png_ptr->process_mode = PNG_READ_CHUNK_MODE; + } + } +} + +void /* PRIVATE */ +png_push_read_chunk(png_structrp png_ptr, png_inforp info_ptr) +{ + png_uint_32 chunk_name; +#ifdef PNG_HANDLE_AS_UNKNOWN_SUPPORTED + int keep; /* unknown handling method */ +#endif + + /* First we make sure we have enough data for the 4 byte chunk name + * and the 4 byte chunk length before proceeding with decoding the + * chunk data. To fully decode each of these chunks, we also make + * sure we have enough data in the buffer for the 4 byte CRC at the + * end of every chunk (except IDAT, which is handled separately). + */ + if (!(png_ptr->mode & PNG_HAVE_CHUNK_HEADER)) + { + png_byte chunk_length[4]; + png_byte chunk_tag[4]; + + if (png_ptr->buffer_size < 8) + { + png_push_save_buffer(png_ptr); + return; + } + + png_push_fill_buffer(png_ptr, chunk_length, 4); + png_ptr->push_length = png_get_uint_31(png_ptr, chunk_length); + png_reset_crc(png_ptr); + png_crc_read(png_ptr, chunk_tag, 4); + png_ptr->chunk_name = PNG_CHUNK_FROM_STRING(chunk_tag); + png_check_chunk_name(png_ptr, png_ptr->chunk_name); + png_ptr->mode |= PNG_HAVE_CHUNK_HEADER; + } + + chunk_name = png_ptr->chunk_name; + + if (chunk_name == png_IDAT) + { + if (png_ptr->mode & PNG_AFTER_IDAT) + png_ptr->mode |= PNG_HAVE_CHUNK_AFTER_IDAT; + + /* If we reach an IDAT chunk, this means we have read all of the + * header chunks, and we can start reading the image (or if this + * is called after the image has been read - we have an error). + */ + if (!(png_ptr->mode & PNG_HAVE_IHDR)) + png_error(png_ptr, "Missing IHDR before IDAT"); + + else if (png_ptr->color_type == PNG_COLOR_TYPE_PALETTE && + !(png_ptr->mode & PNG_HAVE_PLTE)) + png_error(png_ptr, "Missing PLTE before IDAT"); + + png_ptr->mode |= PNG_HAVE_IDAT; + png_ptr->process_mode = PNG_READ_IDAT_MODE; + + if (!(png_ptr->mode & PNG_HAVE_CHUNK_AFTER_IDAT)) + if (png_ptr->push_length == 0) + return; + + if (png_ptr->mode & PNG_AFTER_IDAT) + png_benign_error(png_ptr, "Too many IDATs found"); + } + + if (chunk_name == png_IHDR) + { + if (png_ptr->push_length != 13) + png_error(png_ptr, "Invalid IHDR length"); + + if (png_ptr->push_length + 4 > png_ptr->buffer_size) + { + png_push_save_buffer(png_ptr); + return; + } + + png_handle_IHDR(png_ptr, info_ptr, png_ptr->push_length); + } + + else if (chunk_name == png_IEND) + { + if (png_ptr->push_length + 4 > png_ptr->buffer_size) + { + png_push_save_buffer(png_ptr); + return; + } + + png_handle_IEND(png_ptr, info_ptr, png_ptr->push_length); + + png_ptr->process_mode = PNG_READ_DONE_MODE; + png_push_have_end(png_ptr, info_ptr); + } + +#ifdef PNG_HANDLE_AS_UNKNOWN_SUPPORTED + else if ((keep = png_chunk_unknown_handling(png_ptr, chunk_name)) != 0) + { + if (png_ptr->push_length + 4 > png_ptr->buffer_size) + { + png_push_save_buffer(png_ptr); + return; + } + + png_handle_unknown(png_ptr, info_ptr, png_ptr->push_length, keep); + + if (chunk_name == png_PLTE) + png_ptr->mode |= PNG_HAVE_PLTE; + } +#endif + + else if (chunk_name == png_PLTE) + { + if (png_ptr->push_length + 4 > png_ptr->buffer_size) + { + png_push_save_buffer(png_ptr); + return; + } + png_handle_PLTE(png_ptr, info_ptr, png_ptr->push_length); + } + + else if (chunk_name == png_IDAT) + { + png_ptr->idat_size = png_ptr->push_length; + png_ptr->process_mode = PNG_READ_IDAT_MODE; + png_push_have_info(png_ptr, info_ptr); + png_ptr->zstream.avail_out = + (uInt) PNG_ROWBYTES(png_ptr->pixel_depth, + png_ptr->iwidth) + 1; + png_ptr->zstream.next_out = png_ptr->row_buf; + return; + } + +#ifdef PNG_READ_gAMA_SUPPORTED + else if (png_ptr->chunk_name == png_gAMA) + { + if (png_ptr->push_length + 4 > png_ptr->buffer_size) + { + png_push_save_buffer(png_ptr); + return; + } + + png_handle_gAMA(png_ptr, info_ptr, png_ptr->push_length); + } + +#endif +#ifdef PNG_READ_sBIT_SUPPORTED + else if (png_ptr->chunk_name == png_sBIT) + { + if (png_ptr->push_length + 4 > png_ptr->buffer_size) + { + png_push_save_buffer(png_ptr); + return; + } + + png_handle_sBIT(png_ptr, info_ptr, png_ptr->push_length); + } + +#endif +#ifdef PNG_READ_cHRM_SUPPORTED + else if (png_ptr->chunk_name == png_cHRM) + { + if (png_ptr->push_length + 4 > png_ptr->buffer_size) + { + png_push_save_buffer(png_ptr); + return; + } + + png_handle_cHRM(png_ptr, info_ptr, png_ptr->push_length); + } + +#endif +#ifdef PNG_READ_sRGB_SUPPORTED + else if (chunk_name == png_sRGB) + { + if (png_ptr->push_length + 4 > png_ptr->buffer_size) + { + png_push_save_buffer(png_ptr); + return; + } + + png_handle_sRGB(png_ptr, info_ptr, png_ptr->push_length); + } + +#endif +#ifdef PNG_READ_iCCP_SUPPORTED + else if (png_ptr->chunk_name == png_iCCP) + { + if (png_ptr->push_length + 4 > png_ptr->buffer_size) + { + png_push_save_buffer(png_ptr); + return; + } + + png_handle_iCCP(png_ptr, info_ptr, png_ptr->push_length); + } + +#endif +#ifdef PNG_READ_sPLT_SUPPORTED + else if (chunk_name == png_sPLT) + { + if (png_ptr->push_length + 4 > png_ptr->buffer_size) + { + png_push_save_buffer(png_ptr); + return; + } + + png_handle_sPLT(png_ptr, info_ptr, png_ptr->push_length); + } + +#endif +#ifdef PNG_READ_tRNS_SUPPORTED + else if (chunk_name == png_tRNS) + { + if (png_ptr->push_length + 4 > png_ptr->buffer_size) + { + png_push_save_buffer(png_ptr); + return; + } + + png_handle_tRNS(png_ptr, info_ptr, png_ptr->push_length); + } + +#endif +#ifdef PNG_READ_bKGD_SUPPORTED + else if (chunk_name == png_bKGD) + { + if (png_ptr->push_length + 4 > png_ptr->buffer_size) + { + png_push_save_buffer(png_ptr); + return; + } + + png_handle_bKGD(png_ptr, info_ptr, png_ptr->push_length); + } + +#endif +#ifdef PNG_READ_hIST_SUPPORTED + else if (chunk_name == png_hIST) + { + if (png_ptr->push_length + 4 > png_ptr->buffer_size) + { + png_push_save_buffer(png_ptr); + return; + } + + png_handle_hIST(png_ptr, info_ptr, png_ptr->push_length); + } + +#endif +#ifdef PNG_READ_pHYs_SUPPORTED + else if (chunk_name == png_pHYs) + { + if (png_ptr->push_length + 4 > png_ptr->buffer_size) + { + png_push_save_buffer(png_ptr); + return; + } + + png_handle_pHYs(png_ptr, info_ptr, png_ptr->push_length); + } + +#endif +#ifdef PNG_READ_oFFs_SUPPORTED + else if (chunk_name == png_oFFs) + { + if (png_ptr->push_length + 4 > png_ptr->buffer_size) + { + png_push_save_buffer(png_ptr); + return; + } + + png_handle_oFFs(png_ptr, info_ptr, png_ptr->push_length); + } +#endif + +#ifdef PNG_READ_pCAL_SUPPORTED + else if (chunk_name == png_pCAL) + { + if (png_ptr->push_length + 4 > png_ptr->buffer_size) + { + png_push_save_buffer(png_ptr); + return; + } + + png_handle_pCAL(png_ptr, info_ptr, png_ptr->push_length); + } + +#endif +#ifdef PNG_READ_sCAL_SUPPORTED + else if (chunk_name == png_sCAL) + { + if (png_ptr->push_length + 4 > png_ptr->buffer_size) + { + png_push_save_buffer(png_ptr); + return; + } + + png_handle_sCAL(png_ptr, info_ptr, png_ptr->push_length); + } + +#endif +#ifdef PNG_READ_tIME_SUPPORTED + else if (chunk_name == png_tIME) + { + if (png_ptr->push_length + 4 > png_ptr->buffer_size) + { + png_push_save_buffer(png_ptr); + return; + } + + png_handle_tIME(png_ptr, info_ptr, png_ptr->push_length); + } + +#endif +#ifdef PNG_READ_tEXt_SUPPORTED + else if (chunk_name == png_tEXt) + { + if (png_ptr->push_length + 4 > png_ptr->buffer_size) + { + png_push_save_buffer(png_ptr); + return; + } + + png_handle_tEXt(png_ptr, info_ptr, png_ptr->push_length); + } + +#endif +#ifdef PNG_READ_zTXt_SUPPORTED + else if (chunk_name == png_zTXt) + { + if (png_ptr->push_length + 4 > png_ptr->buffer_size) + { + png_push_save_buffer(png_ptr); + return; + } + + png_handle_zTXt(png_ptr, info_ptr, png_ptr->push_length); + } + +#endif +#ifdef PNG_READ_iTXt_SUPPORTED + else if (chunk_name == png_iTXt) + { + if (png_ptr->push_length + 4 > png_ptr->buffer_size) + { + png_push_save_buffer(png_ptr); + return; + } + + png_handle_iTXt(png_ptr, info_ptr, png_ptr->push_length); + } +#endif + + else + { + if (png_ptr->push_length + 4 > png_ptr->buffer_size) + { + png_push_save_buffer(png_ptr); + return; + } + png_handle_unknown(png_ptr, info_ptr, png_ptr->push_length, + PNG_HANDLE_CHUNK_AS_DEFAULT); + } + + png_ptr->mode &= ~PNG_HAVE_CHUNK_HEADER; +} + +void /* PRIVATE */ +png_push_crc_skip(png_structrp png_ptr, png_uint_32 skip) +{ + png_ptr->process_mode = PNG_SKIP_MODE; + png_ptr->skip_length = skip; +} + +void /* PRIVATE */ +png_push_crc_finish(png_structrp png_ptr) +{ + if (png_ptr->skip_length && png_ptr->save_buffer_size) + { + png_size_t save_size = png_ptr->save_buffer_size; + png_uint_32 skip_length = png_ptr->skip_length; + + /* We want the smaller of 'skip_length' and 'save_buffer_size', but + * they are of different types and we don't know which variable has the + * fewest bits. Carefully select the smaller and cast it to the type of + * the larger - this cannot overflow. Do not cast in the following test + * - it will break on either 16 or 64 bit platforms. + */ + if (skip_length < save_size) + save_size = (png_size_t)skip_length; + + else + skip_length = (png_uint_32)save_size; + + png_calculate_crc(png_ptr, png_ptr->save_buffer_ptr, save_size); + + png_ptr->skip_length -= skip_length; + png_ptr->buffer_size -= save_size; + png_ptr->save_buffer_size -= save_size; + png_ptr->save_buffer_ptr += save_size; + } + if (png_ptr->skip_length && png_ptr->current_buffer_size) + { + png_size_t save_size = png_ptr->current_buffer_size; + png_uint_32 skip_length = png_ptr->skip_length; + + /* We want the smaller of 'skip_length' and 'current_buffer_size', here, + * the same problem exists as above and the same solution. + */ + if (skip_length < save_size) + save_size = (png_size_t)skip_length; + + else + skip_length = (png_uint_32)save_size; + + png_calculate_crc(png_ptr, png_ptr->current_buffer_ptr, save_size); + + png_ptr->skip_length -= skip_length; + png_ptr->buffer_size -= save_size; + png_ptr->current_buffer_size -= save_size; + png_ptr->current_buffer_ptr += save_size; + } + if (!png_ptr->skip_length) + { + if (png_ptr->buffer_size < 4) + { + png_push_save_buffer(png_ptr); + return; + } + + png_crc_finish(png_ptr, 0); + png_ptr->process_mode = PNG_READ_CHUNK_MODE; + } +} + +void PNGCBAPI +png_push_fill_buffer(png_structp png_ptr, png_bytep buffer, png_size_t length) +{ + png_bytep ptr; + + if (png_ptr == NULL) + return; + + ptr = buffer; + if (png_ptr->save_buffer_size) + { + png_size_t save_size; + + if (length < png_ptr->save_buffer_size) + save_size = length; + + else + save_size = png_ptr->save_buffer_size; + + memcpy(ptr, png_ptr->save_buffer_ptr, save_size); + length -= save_size; + ptr += save_size; + png_ptr->buffer_size -= save_size; + png_ptr->save_buffer_size -= save_size; + png_ptr->save_buffer_ptr += save_size; + } + if (length && png_ptr->current_buffer_size) + { + png_size_t save_size; + + if (length < png_ptr->current_buffer_size) + save_size = length; + + else + save_size = png_ptr->current_buffer_size; + + memcpy(ptr, png_ptr->current_buffer_ptr, save_size); + png_ptr->buffer_size -= save_size; + png_ptr->current_buffer_size -= save_size; + png_ptr->current_buffer_ptr += save_size; + } +} + +void /* PRIVATE */ +png_push_save_buffer(png_structrp png_ptr) +{ + if (png_ptr->save_buffer_size) + { + if (png_ptr->save_buffer_ptr != png_ptr->save_buffer) + { + png_size_t i, istop; + png_bytep sp; + png_bytep dp; + + istop = png_ptr->save_buffer_size; + for (i = 0, sp = png_ptr->save_buffer_ptr, dp = png_ptr->save_buffer; + i < istop; i++, sp++, dp++) + { + *dp = *sp; + } + } + } + if (png_ptr->save_buffer_size + png_ptr->current_buffer_size > + png_ptr->save_buffer_max) + { + png_size_t new_max; + png_bytep old_buffer; + + if (png_ptr->save_buffer_size > PNG_SIZE_MAX - + (png_ptr->current_buffer_size + 256)) + { + png_error(png_ptr, "Potential overflow of save_buffer"); + } + + new_max = png_ptr->save_buffer_size + png_ptr->current_buffer_size + 256; + old_buffer = png_ptr->save_buffer; + png_ptr->save_buffer = (png_bytep)png_malloc_warn(png_ptr, + (png_size_t)new_max); + + if (png_ptr->save_buffer == NULL) + { + png_free(png_ptr, old_buffer); + png_error(png_ptr, "Insufficient memory for save_buffer"); + } + + memcpy(png_ptr->save_buffer, old_buffer, png_ptr->save_buffer_size); + png_free(png_ptr, old_buffer); + png_ptr->save_buffer_max = new_max; + } + if (png_ptr->current_buffer_size) + { + memcpy(png_ptr->save_buffer + png_ptr->save_buffer_size, + png_ptr->current_buffer_ptr, png_ptr->current_buffer_size); + png_ptr->save_buffer_size += png_ptr->current_buffer_size; + png_ptr->current_buffer_size = 0; + } + png_ptr->save_buffer_ptr = png_ptr->save_buffer; + png_ptr->buffer_size = 0; +} + +void /* PRIVATE */ +png_push_restore_buffer(png_structrp png_ptr, png_bytep buffer, + png_size_t buffer_length) +{ + png_ptr->current_buffer = buffer; + png_ptr->current_buffer_size = buffer_length; + png_ptr->buffer_size = buffer_length + png_ptr->save_buffer_size; + png_ptr->current_buffer_ptr = png_ptr->current_buffer; +} + +void /* PRIVATE */ +png_push_read_IDAT(png_structrp png_ptr) +{ + if (!(png_ptr->mode & PNG_HAVE_CHUNK_HEADER)) + { + png_byte chunk_length[4]; + png_byte chunk_tag[4]; + + /* TODO: this code can be commoned up with the same code in push_read */ + if (png_ptr->buffer_size < 8) + { + png_push_save_buffer(png_ptr); + return; + } + + png_push_fill_buffer(png_ptr, chunk_length, 4); + png_ptr->push_length = png_get_uint_31(png_ptr, chunk_length); + png_reset_crc(png_ptr); + png_crc_read(png_ptr, chunk_tag, 4); + png_ptr->chunk_name = PNG_CHUNK_FROM_STRING(chunk_tag); + png_ptr->mode |= PNG_HAVE_CHUNK_HEADER; + + if (png_ptr->chunk_name != png_IDAT) + { + png_ptr->process_mode = PNG_READ_CHUNK_MODE; + + if (!(png_ptr->flags & PNG_FLAG_ZSTREAM_ENDED)) + png_error(png_ptr, "Not enough compressed data"); + + return; + } + + png_ptr->idat_size = png_ptr->push_length; + } + + if (png_ptr->idat_size && png_ptr->save_buffer_size) + { + png_size_t save_size = png_ptr->save_buffer_size; + png_uint_32 idat_size = png_ptr->idat_size; + + /* We want the smaller of 'idat_size' and 'current_buffer_size', but they + * are of different types and we don't know which variable has the fewest + * bits. Carefully select the smaller and cast it to the type of the + * larger - this cannot overflow. Do not cast in the following test - it + * will break on either 16 or 64 bit platforms. + */ + if (idat_size < save_size) + save_size = (png_size_t)idat_size; + + else + idat_size = (png_uint_32)save_size; + + png_calculate_crc(png_ptr, png_ptr->save_buffer_ptr, save_size); + + png_process_IDAT_data(png_ptr, png_ptr->save_buffer_ptr, save_size); + + png_ptr->idat_size -= idat_size; + png_ptr->buffer_size -= save_size; + png_ptr->save_buffer_size -= save_size; + png_ptr->save_buffer_ptr += save_size; + } + + if (png_ptr->idat_size && png_ptr->current_buffer_size) + { + png_size_t save_size = png_ptr->current_buffer_size; + png_uint_32 idat_size = png_ptr->idat_size; + + /* We want the smaller of 'idat_size' and 'current_buffer_size', but they + * are of different types and we don't know which variable has the fewest + * bits. Carefully select the smaller and cast it to the type of the + * larger - this cannot overflow. + */ + if (idat_size < save_size) + save_size = (png_size_t)idat_size; + + else + idat_size = (png_uint_32)save_size; + + png_calculate_crc(png_ptr, png_ptr->current_buffer_ptr, save_size); + + png_process_IDAT_data(png_ptr, png_ptr->current_buffer_ptr, save_size); + + png_ptr->idat_size -= idat_size; + png_ptr->buffer_size -= save_size; + png_ptr->current_buffer_size -= save_size; + png_ptr->current_buffer_ptr += save_size; + } + if (!png_ptr->idat_size) + { + if (png_ptr->buffer_size < 4) + { + png_push_save_buffer(png_ptr); + return; + } + + png_crc_finish(png_ptr, 0); + png_ptr->mode &= ~PNG_HAVE_CHUNK_HEADER; + png_ptr->mode |= PNG_AFTER_IDAT; + png_ptr->zowner = 0; + } +} + +void /* PRIVATE */ +png_process_IDAT_data(png_structrp png_ptr, png_bytep buffer, + png_size_t buffer_length) +{ + /* The caller checks for a non-zero buffer length. */ + if (!(buffer_length > 0) || buffer == NULL) + png_error(png_ptr, "No IDAT data (internal error)"); + + /* This routine must process all the data it has been given + * before returning, calling the row callback as required to + * handle the uncompressed results. + */ + png_ptr->zstream.next_in = buffer; + /* TODO: WARNING: TRUNCATION ERROR: DANGER WILL ROBINSON: */ + png_ptr->zstream.avail_in = (uInt)buffer_length; + + /* Keep going until the decompressed data is all processed + * or the stream marked as finished. + */ + while (png_ptr->zstream.avail_in > 0 && + !(png_ptr->flags & PNG_FLAG_ZSTREAM_ENDED)) + { + int ret; + + /* We have data for zlib, but we must check that zlib + * has someplace to put the results. It doesn't matter + * if we don't expect any results -- it may be the input + * data is just the LZ end code. + */ + if (!(png_ptr->zstream.avail_out > 0)) + { + /* TODO: WARNING: TRUNCATION ERROR: DANGER WILL ROBINSON: */ + png_ptr->zstream.avail_out = (uInt)(PNG_ROWBYTES(png_ptr->pixel_depth, + png_ptr->iwidth) + 1); + + png_ptr->zstream.next_out = png_ptr->row_buf; + } + + /* Using Z_SYNC_FLUSH here means that an unterminated + * LZ stream (a stream with a missing end code) can still + * be handled, otherwise (Z_NO_FLUSH) a future zlib + * implementation might defer output and therefore + * change the current behavior (see comments in inflate.c + * for why this doesn't happen at present with zlib 1.2.5). + */ + ret = inflate(&png_ptr->zstream, Z_SYNC_FLUSH); + + /* Check for any failure before proceeding. */ + if (ret != Z_OK && ret != Z_STREAM_END) + { + /* Terminate the decompression. */ + png_ptr->flags |= PNG_FLAG_ZSTREAM_ENDED; + png_ptr->zowner = 0; + + /* This may be a truncated stream (missing or + * damaged end code). Treat that as a warning. + */ + if (png_ptr->row_number >= png_ptr->num_rows || + png_ptr->pass > 6) + png_warning(png_ptr, "Truncated compressed data in IDAT"); + + else + png_error(png_ptr, "Decompression error in IDAT"); + + /* Skip the check on unprocessed input */ + return; + } + + /* Did inflate output any data? */ + if (png_ptr->zstream.next_out != png_ptr->row_buf) + { + /* Is this unexpected data after the last row? + * If it is, artificially terminate the LZ output + * here. + */ + if (png_ptr->row_number >= png_ptr->num_rows || + png_ptr->pass > 6) + { + /* Extra data. */ + png_warning(png_ptr, "Extra compressed data in IDAT"); + png_ptr->flags |= PNG_FLAG_ZSTREAM_ENDED; + png_ptr->zowner = 0; + + /* Do no more processing; skip the unprocessed + * input check below. + */ + return; + } + + /* Do we have a complete row? */ + if (png_ptr->zstream.avail_out == 0) + png_push_process_row(png_ptr); + } + + /* And check for the end of the stream. */ + if (ret == Z_STREAM_END) + png_ptr->flags |= PNG_FLAG_ZSTREAM_ENDED; + } + + /* All the data should have been processed, if anything + * is left at this point we have bytes of IDAT data + * after the zlib end code. + */ + if (png_ptr->zstream.avail_in > 0) + png_warning(png_ptr, "Extra compression data in IDAT"); +} + +void /* PRIVATE */ +png_push_process_row(png_structrp png_ptr) +{ + /* 1.5.6: row_info moved out of png_struct to a local here. */ + png_row_info row_info; + + row_info.width = png_ptr->iwidth; /* NOTE: width of current interlaced row */ + row_info.color_type = png_ptr->color_type; + row_info.bit_depth = png_ptr->bit_depth; + row_info.channels = png_ptr->channels; + row_info.pixel_depth = png_ptr->pixel_depth; + row_info.rowbytes = PNG_ROWBYTES(row_info.pixel_depth, row_info.width); + + if (png_ptr->row_buf[0] > PNG_FILTER_VALUE_NONE) + { + if (png_ptr->row_buf[0] < PNG_FILTER_VALUE_LAST) + png_read_filter_row(png_ptr, &row_info, png_ptr->row_buf + 1, + png_ptr->prev_row + 1, png_ptr->row_buf[0]); + else + png_error(png_ptr, "bad adaptive filter value"); + } + + /* libpng 1.5.6: the following line was copying png_ptr->rowbytes before + * 1.5.6, while the buffer really is this big in current versions of libpng + * it may not be in the future, so this was changed just to copy the + * interlaced row count: + */ + memcpy(png_ptr->prev_row, png_ptr->row_buf, row_info.rowbytes + 1); + +#ifdef PNG_READ_TRANSFORMS_SUPPORTED + if (png_ptr->transformations) + png_do_read_transformations(png_ptr, &row_info); +#endif + + /* The transformed pixel depth should match the depth now in row_info. */ + if (png_ptr->transformed_pixel_depth == 0) + { + png_ptr->transformed_pixel_depth = row_info.pixel_depth; + if (row_info.pixel_depth > png_ptr->maximum_pixel_depth) + png_error(png_ptr, "progressive row overflow"); + } + + else if (png_ptr->transformed_pixel_depth != row_info.pixel_depth) + png_error(png_ptr, "internal progressive row size calculation error"); + + +#ifdef PNG_READ_INTERLACING_SUPPORTED + /* Expand interlaced rows to full size */ + if (png_ptr->interlaced && (png_ptr->transformations & PNG_INTERLACE)) + { + if (png_ptr->pass < 6) + png_do_read_interlace(&row_info, png_ptr->row_buf + 1, png_ptr->pass, + png_ptr->transformations); + + switch (png_ptr->pass) + { + case 0: + { + int i; + for (i = 0; i < 8 && png_ptr->pass == 0; i++) + { + png_push_have_row(png_ptr, png_ptr->row_buf + 1); + png_read_push_finish_row(png_ptr); /* Updates png_ptr->pass */ + } + + if (png_ptr->pass == 2) /* Pass 1 might be empty */ + { + for (i = 0; i < 4 && png_ptr->pass == 2; i++) + { + png_push_have_row(png_ptr, NULL); + png_read_push_finish_row(png_ptr); + } + } + + if (png_ptr->pass == 4 && png_ptr->height <= 4) + { + for (i = 0; i < 2 && png_ptr->pass == 4; i++) + { + png_push_have_row(png_ptr, NULL); + png_read_push_finish_row(png_ptr); + } + } + + if (png_ptr->pass == 6 && png_ptr->height <= 4) + { + png_push_have_row(png_ptr, NULL); + png_read_push_finish_row(png_ptr); + } + + break; + } + + case 1: + { + int i; + for (i = 0; i < 8 && png_ptr->pass == 1; i++) + { + png_push_have_row(png_ptr, png_ptr->row_buf + 1); + png_read_push_finish_row(png_ptr); + } + + if (png_ptr->pass == 2) /* Skip top 4 generated rows */ + { + for (i = 0; i < 4 && png_ptr->pass == 2; i++) + { + png_push_have_row(png_ptr, NULL); + png_read_push_finish_row(png_ptr); + } + } + + break; + } + + case 2: + { + int i; + + for (i = 0; i < 4 && png_ptr->pass == 2; i++) + { + png_push_have_row(png_ptr, png_ptr->row_buf + 1); + png_read_push_finish_row(png_ptr); + } + + for (i = 0; i < 4 && png_ptr->pass == 2; i++) + { + png_push_have_row(png_ptr, NULL); + png_read_push_finish_row(png_ptr); + } + + if (png_ptr->pass == 4) /* Pass 3 might be empty */ + { + for (i = 0; i < 2 && png_ptr->pass == 4; i++) + { + png_push_have_row(png_ptr, NULL); + png_read_push_finish_row(png_ptr); + } + } + + break; + } + + case 3: + { + int i; + + for (i = 0; i < 4 && png_ptr->pass == 3; i++) + { + png_push_have_row(png_ptr, png_ptr->row_buf + 1); + png_read_push_finish_row(png_ptr); + } + + if (png_ptr->pass == 4) /* Skip top two generated rows */ + { + for (i = 0; i < 2 && png_ptr->pass == 4; i++) + { + png_push_have_row(png_ptr, NULL); + png_read_push_finish_row(png_ptr); + } + } + + break; + } + + case 4: + { + int i; + + for (i = 0; i < 2 && png_ptr->pass == 4; i++) + { + png_push_have_row(png_ptr, png_ptr->row_buf + 1); + png_read_push_finish_row(png_ptr); + } + + for (i = 0; i < 2 && png_ptr->pass == 4; i++) + { + png_push_have_row(png_ptr, NULL); + png_read_push_finish_row(png_ptr); + } + + if (png_ptr->pass == 6) /* Pass 5 might be empty */ + { + png_push_have_row(png_ptr, NULL); + png_read_push_finish_row(png_ptr); + } + + break; + } + + case 5: + { + int i; + + for (i = 0; i < 2 && png_ptr->pass == 5; i++) + { + png_push_have_row(png_ptr, png_ptr->row_buf + 1); + png_read_push_finish_row(png_ptr); + } + + if (png_ptr->pass == 6) /* Skip top generated row */ + { + png_push_have_row(png_ptr, NULL); + png_read_push_finish_row(png_ptr); + } + + break; + } + + default: + case 6: + { + png_push_have_row(png_ptr, png_ptr->row_buf + 1); + png_read_push_finish_row(png_ptr); + + if (png_ptr->pass != 6) + break; + + png_push_have_row(png_ptr, NULL); + png_read_push_finish_row(png_ptr); + } + } + } + else + { + png_push_have_row(png_ptr, png_ptr->row_buf + 1); + png_read_push_finish_row(png_ptr); + } +} + +void /* PRIVATE */ +png_read_push_finish_row(png_structrp png_ptr) +{ + /* Arrays to facilitate easy interlacing - use pass (0 - 6) as index */ + + /* Start of interlace block */ + static PNG_CONST png_byte png_pass_start[] = {0, 4, 0, 2, 0, 1, 0}; + + /* Offset to next interlace block */ + static PNG_CONST png_byte png_pass_inc[] = {8, 8, 4, 4, 2, 2, 1}; + + /* Start of interlace block in the y direction */ + static PNG_CONST png_byte png_pass_ystart[] = {0, 0, 4, 0, 2, 0, 1}; + + /* Offset to next interlace block in the y direction */ + static PNG_CONST png_byte png_pass_yinc[] = {8, 8, 8, 4, 4, 2, 2}; + + /* Height of interlace block. This is not currently used - if you need + * it, uncomment it here and in png.h + static PNG_CONST png_byte png_pass_height[] = {8, 8, 4, 4, 2, 2, 1}; + */ +#endif + + png_ptr->row_number++; + if (png_ptr->row_number < png_ptr->num_rows) + return; + + if (png_ptr->interlaced) + { + png_ptr->row_number = 0; + memset(png_ptr->prev_row, 0, png_ptr->rowbytes + 1); + + do + { + png_ptr->pass++; + if ((png_ptr->pass == 1 && png_ptr->width < 5) || + (png_ptr->pass == 3 && png_ptr->width < 3) || + (png_ptr->pass == 5 && png_ptr->width < 2)) + png_ptr->pass++; + + if (png_ptr->pass > 7) + png_ptr->pass--; + + if (png_ptr->pass >= 7) + break; + + png_ptr->iwidth = (png_ptr->width + + png_pass_inc[png_ptr->pass] - 1 - + png_pass_start[png_ptr->pass]) / + png_pass_inc[png_ptr->pass]; + + if (png_ptr->transformations & PNG_INTERLACE) + break; + + png_ptr->num_rows = (png_ptr->height + + png_pass_yinc[png_ptr->pass] - 1 - + png_pass_ystart[png_ptr->pass]) / + png_pass_yinc[png_ptr->pass]; + + } while (png_ptr->iwidth == 0 || png_ptr->num_rows == 0); + } +} + +void /* PRIVATE */ +png_push_have_info(png_structrp png_ptr, png_inforp info_ptr) +{ + if (png_ptr->info_fn != NULL) + (*(png_ptr->info_fn))(png_ptr, info_ptr); +} + +void /* PRIVATE */ +png_push_have_end(png_structrp png_ptr, png_inforp info_ptr) +{ + if (png_ptr->end_fn != NULL) + (*(png_ptr->end_fn))(png_ptr, info_ptr); +} + +void /* PRIVATE */ +png_push_have_row(png_structrp png_ptr, png_bytep row) +{ + if (png_ptr->row_fn != NULL) + (*(png_ptr->row_fn))(png_ptr, row, png_ptr->row_number, + (int)png_ptr->pass); +} + +void PNGAPI +png_progressive_combine_row(png_const_structrp png_ptr, png_bytep old_row, + png_const_bytep new_row) +{ + if (png_ptr == NULL) + return; + + /* new_row is a flag here - if it is NULL then the app callback was called + * from an empty row (see the calls to png_struct::row_fn below), otherwise + * it must be png_ptr->row_buf+1 + */ + if (new_row != NULL) + png_combine_row(png_ptr, old_row, 1/*blocky display*/); +} + +void PNGAPI +png_set_progressive_read_fn(png_structrp png_ptr, png_voidp progressive_ptr, + png_progressive_info_ptr info_fn, png_progressive_row_ptr row_fn, + png_progressive_end_ptr end_fn) +{ + if (png_ptr == NULL) + return; + + png_ptr->info_fn = info_fn; + png_ptr->row_fn = row_fn; + png_ptr->end_fn = end_fn; + + png_set_read_fn(png_ptr, progressive_ptr, png_push_fill_buffer); +} + +png_voidp PNGAPI +png_get_progressive_ptr(png_const_structrp png_ptr) +{ + if (png_ptr == NULL) + return (NULL); + + return png_ptr->io_ptr; +} +#endif /* PNG_PROGRESSIVE_READ_SUPPORTED */ diff --git a/png/pngpriv.h b/png/pngpriv.h new file mode 100644 index 0000000..c498313 --- /dev/null +++ b/png/pngpriv.h @@ -0,0 +1,1940 @@ + +/* pngpriv.h - private declarations for use inside libpng + * + * For conditions of distribution and use, see copyright notice in png.h + * Copyright (c) 1998-2014 Glenn Randers-Pehrson + * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) + * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) + * + * Last changed in libpng 1.6.10 [March 6, 1014]] + * + * This code is released under the libpng license. + * For conditions of distribution and use, see the disclaimer + * and license in png.h + */ + +/* The symbols declared in this file (including the functions declared + * as extern) are PRIVATE. They are not part of the libpng public + * interface, and are not recommended for use by regular applications. + * Some of them may become public in the future; others may stay private, + * change in an incompatible way, or even disappear. + * Although the libpng users are not forbidden to include this header, + * they should be well aware of the issues that may arise from doing so. + */ + +#ifndef PNGPRIV_H +#define PNGPRIV_H + +/* Feature Test Macros. The following are defined here to ensure that correctly + * implemented libraries reveal the APIs libpng needs to build and hide those + * that are not needed and potentially damaging to the compilation. + * + * Feature Test Macros must be defined before any system header is included (see + * POSIX 1003.1 2.8.2 "POSIX Symbols." + * + * These macros only have an effect if the operating system supports either + * POSIX 1003.1 or C99, or both. On other operating systems (particularly + * Windows/Visual Studio) there is no effect; the OS specific tests below are + * still required (as of 2011-05-02.) + */ +#define _POSIX_SOURCE 1 /* Just the POSIX 1003.1 and C89 APIs */ + +#ifndef PNG_VERSION_INFO_ONLY +/* Standard library headers not required by png.h: */ +# include +# include +#endif + +#define PNGLIB_BUILD /*libpng is being built, not used*/ + +/* If HAVE_CONFIG_H is defined during the build then the build system must + * provide an appropriate "config.h" file on the include path. The header file + * must provide definitions as required below (search for "HAVE_CONFIG_H"); + * see configure.ac for more details of the requirements. The macro + * "PNG_NO_CONFIG_H" is provided for maintainers to test for dependencies on + * 'configure'; define this macro to prevent the configure build including the + * configure generated config.h. Libpng is expected to compile without *any* + * special build system support on a reasonably ANSI-C compliant system. + */ +#if defined(HAVE_CONFIG_H) && !defined(PNG_NO_CONFIG_H) +# include + + /* Pick up the definition of 'restrict' from config.h if it was read: */ +# define PNG_RESTRICT restrict +#endif + +/* To support symbol prefixing it is necessary to know *before* including png.h + * whether the fixed point (and maybe other) APIs are exported, because if they + * are not internal definitions may be required. This is handled below just + * before png.h is included, but load the configuration now if it is available. + */ +#ifndef PNGLCONF_H +# include "pnglibconf.h" +#endif + +/* Local renames may change non-exported API functions from png.h */ +#if defined(PNG_PREFIX) && !defined(PNGPREFIX_H) +# include "pngprefix.h" +#endif + +#ifdef PNG_USER_CONFIG +# include "pngusr.h" + /* These should have been defined in pngusr.h */ +# ifndef PNG_USER_PRIVATEBUILD +# define PNG_USER_PRIVATEBUILD "Custom libpng build" +# endif +# ifndef PNG_USER_DLLFNAME_POSTFIX +# define PNG_USER_DLLFNAME_POSTFIX "Cb" +# endif +#endif + +/* Compile time options. + * ===================== + * In a multi-arch build the compiler may compile the code several times for the + * same object module, producing different binaries for different architectures. + * When this happens configure-time setting of the target host options cannot be + * done and this interferes with the handling of the ARM NEON optimizations, and + * possibly other similar optimizations. Put additional tests here; in general + * this is needed when the same option can be changed at both compile time and + * run time depending on the target OS (i.e. iOS vs Android.) + * + * NOTE: symbol prefixing does not pass $(CFLAGS) to the preprocessor, because + * this is not possible with certain compilers (Oracle SUN OS CC), as a result + * it is necessary to ensure that all extern functions that *might* be used + * regardless of $(CFLAGS) get declared in this file. The test on __ARM_NEON__ + * below is one example of this behavior because it is controlled by the + * presence or not of -mfpu=neon on the GCC command line, it is possible to do + * this in $(CC), e.g. "CC=gcc -mfpu=neon", but people who build libpng rarely + * do this. + */ +#ifndef PNG_ARM_NEON_OPT + /* ARM NEON optimizations are being controlled by the compiler settings, + * typically the target FPU. If the FPU has been set to NEON (-mfpu=neon + * with GCC) then the compiler will define __ARM_NEON__ and we can rely + * unconditionally on NEON instructions not crashing, otherwise we must + * disable use of NEON instructions. + * + * NOTE: at present these optimizations depend on 'ALIGNED_MEMORY', so they + * can only be turned on automatically if that is supported too. If + * PNG_ARM_NEON_OPT is set in CPPFLAGS (to >0) then arm/arm_init.c will fail + * to compile with an appropriate #error if ALIGNED_MEMORY has been turned + * off. + */ +# if defined(__ARM_NEON__) && defined(PNG_ALIGNED_MEMORY_SUPPORTED) +# define PNG_ARM_NEON_OPT 2 +# else +# define PNG_ARM_NEON_OPT 0 +# endif +#endif + +#if PNG_ARM_NEON_OPT > 0 + /* NEON optimizations are to be at least considered by libpng, so enable the + * callbacks to do this. + */ +# define PNG_FILTER_OPTIMIZATIONS png_init_filter_functions_neon + + /* By default the 'intrinsics' code in arm/filter_neon_intrinsics.c is used + * if possible - if __ARM_NEON__ is set and the compiler version is not known + * to be broken. This is controlled by PNG_ARM_NEON_IMPLEMENTATION which can + * be: + * + * 1 The intrinsics code (the default with __ARM_NEON__) + * 2 The hand coded assembler (the default without __ARM_NEON__) + * + * It is possible to set PNG_ARM_NEON_IMPLEMENTATION in CPPFLAGS, however + * this is *NOT* supported and may cease to work even after a minor revision + * to libpng. It *is* valid to do this for testing purposes, e.g. speed + * testing or a new compiler, but the results should be communicated to the + * libpng implementation list for incorporation in the next minor release. + */ +# ifndef PNG_ARM_NEON_IMPLEMENTATION +# ifdef __ARM_NEON__ +# if defined(__clang__) + /* At present it is unknown by the libpng developers which versions + * of clang support the intrinsics, however some or perhaps all + * versions do not work with the assembler so this may be + * irrelevant, so just use the default (do nothing here.) + */ +# elif defined(__GNUC__) + /* GCC 4.5.4 NEON support is known to be broken. 4.6.3 is known to + * work, so if this *is* GCC, or G++, look for a version >4.5 + */ +# if __GNUC__ < 4 || (__GNUC__ == 4 && __GNUC_MINOR__ < 6) +# define PNG_ARM_NEON_IMPLEMENTATION 2 +# endif /* no GNUC support */ +# endif /* __GNUC__ */ +# else /* !defined __ARM_NEON__ */ + /* The 'intrinsics' code simply won't compile without this -mfpu=neon: + */ +# define PNG_ARM_NEON_IMPLEMENTATION 2 +# endif /* __ARM_NEON__ */ +# endif /* !defined PNG_ARM_NEON_IMPLEMENTATION */ + +# ifndef PNG_ARM_NEON_IMPLEMENTATION + /* Use the intrinsics code by default. */ +# define PNG_ARM_NEON_IMPLEMENTATION 1 +# endif +#endif /* PNG_ARM_NEON_OPT > 0 */ + +/* Is this a build of a DLL where compilation of the object modules requires + * different preprocessor settings to those required for a simple library? If + * so PNG_BUILD_DLL must be set. + * + * If libpng is used inside a DLL but that DLL does not export the libpng APIs + * PNG_BUILD_DLL must not be set. To avoid the code below kicking in build a + * static library of libpng then link the DLL against that. + */ +#ifndef PNG_BUILD_DLL +# ifdef DLL_EXPORT + /* This is set by libtool when files are compiled for a DLL; libtool + * always compiles twice, even on systems where it isn't necessary. Set + * PNG_BUILD_DLL in case it is necessary: + */ +# define PNG_BUILD_DLL +# else +# ifdef _WINDLL + /* This is set by the Microsoft Visual Studio IDE in projects that + * build a DLL. It can't easily be removed from those projects (it + * isn't visible in the Visual Studio UI) so it is a fairly reliable + * indication that PNG_IMPEXP needs to be set to the DLL export + * attributes. + */ +# define PNG_BUILD_DLL +# else +# ifdef __DLL__ + /* This is set by the Borland C system when compiling for a DLL + * (as above.) + */ +# define PNG_BUILD_DLL +# else + /* Add additional compiler cases here. */ +# endif +# endif +# endif +#endif /* Setting PNG_BUILD_DLL if required */ + +/* See pngconf.h for more details: the builder of the library may set this on + * the command line to the right thing for the specific compilation system or it + * may be automagically set above (at present we know of no system where it does + * need to be set on the command line.) + * + * PNG_IMPEXP must be set here when building the library to prevent pngconf.h + * setting it to the "import" setting for a DLL build. + */ +#ifndef PNG_IMPEXP +# ifdef PNG_BUILD_DLL +# define PNG_IMPEXP PNG_DLL_EXPORT +# else + /* Not building a DLL, or the DLL doesn't require specific export + * definitions. + */ +# define PNG_IMPEXP +# endif +#endif + +/* No warnings for private or deprecated functions in the build: */ +#ifndef PNG_DEPRECATED +# define PNG_DEPRECATED +#endif +#ifndef PNG_PRIVATE +# define PNG_PRIVATE +#endif + +/* Symbol preprocessing support. + * + * To enable listing global, but internal, symbols the following macros should + * always be used to declare an extern data or function object in this file. + */ +#ifndef PNG_INTERNAL_DATA +# define PNG_INTERNAL_DATA(type, name, array) extern type name array +#endif + +#ifndef PNG_INTERNAL_FUNCTION +# define PNG_INTERNAL_FUNCTION(type, name, args, attributes)\ + extern PNG_FUNCTION(type, name, args, PNG_EMPTY attributes) +#endif + +#ifndef PNG_INTERNAL_CALLBACK +# define PNG_INTERNAL_CALLBACK(type, name, args, attributes)\ + extern PNG_FUNCTION(type, (PNGCBAPI name), args, PNG_EMPTY attributes) +#endif + +/* If floating or fixed point APIs are disabled they may still be compiled + * internally. To handle this make sure they are declared as the appropriate + * internal extern function (otherwise the symbol prefixing stuff won't work and + * the functions will be used without definitions.) + * + * NOTE: although all the API functions are declared here they are not all + * actually built! Because the declarations are still made it is necessary to + * fake out types that they depend on. + */ +#ifndef PNG_FP_EXPORT +# ifndef PNG_FLOATING_POINT_SUPPORTED +# define PNG_FP_EXPORT(ordinal, type, name, args)\ + PNG_INTERNAL_FUNCTION(type, name, args, PNG_EMPTY); +# ifndef PNG_VERSION_INFO_ONLY + typedef struct png_incomplete png_double; + typedef png_double* png_doublep; + typedef const png_double* png_const_doublep; + typedef png_double** png_doublepp; +# endif +# endif +#endif +#ifndef PNG_FIXED_EXPORT +# ifndef PNG_FIXED_POINT_SUPPORTED +# define PNG_FIXED_EXPORT(ordinal, type, name, args)\ + PNG_INTERNAL_FUNCTION(type, name, args, PNG_EMPTY); +# endif +#endif + +#include "png.h" + +/* pngconf.h does not set PNG_DLL_EXPORT unless it is required, so: */ +#ifndef PNG_DLL_EXPORT +# define PNG_DLL_EXPORT +#endif + +/* SECURITY and SAFETY: + * + * By default libpng is built without any internal limits on image size, + * individual heap (png_malloc) allocations or the total amount of memory used. + * If PNG_SAFE_LIMITS_SUPPORTED is defined, however, the limits below are used + * (unless individually overridden). These limits are believed to be fairly + * safe, but builders of secure systems should verify the values against the + * real system capabilities. + */ +#ifdef PNG_SAFE_LIMITS_SUPPORTED + /* 'safe' limits */ +# ifndef PNG_USER_WIDTH_MAX +# define PNG_USER_WIDTH_MAX 1000000 +# endif +# ifndef PNG_USER_HEIGHT_MAX +# define PNG_USER_HEIGHT_MAX 1000000 +# endif +# ifndef PNG_USER_CHUNK_CACHE_MAX +# define PNG_USER_CHUNK_CACHE_MAX 128 +# endif +# ifndef PNG_USER_CHUNK_MALLOC_MAX +# define PNG_USER_CHUNK_MALLOC_MAX 8000000 +# endif +#else + /* values for no limits */ +# ifndef PNG_USER_WIDTH_MAX +# define PNG_USER_WIDTH_MAX 0x7fffffff +# endif +# ifndef PNG_USER_HEIGHT_MAX +# define PNG_USER_HEIGHT_MAX 0x7fffffff +# endif +# ifndef PNG_USER_CHUNK_CACHE_MAX +# define PNG_USER_CHUNK_CACHE_MAX 0 +# endif +# ifndef PNG_USER_CHUNK_MALLOC_MAX +# define PNG_USER_CHUNK_MALLOC_MAX 0 +# endif +#endif + +/* Moved to pngpriv.h at libpng-1.5.0 */ +/* NOTE: some of these may have been used in external applications as + * these definitions were exposed in pngconf.h prior to 1.5. + */ + +/* If you are running on a machine where you cannot allocate more + * than 64K of memory at once, uncomment this. While libpng will not + * normally need that much memory in a chunk (unless you load up a very + * large file), zlib needs to know how big of a chunk it can use, and + * libpng thus makes sure to check any memory allocation to verify it + * will fit into memory. + * + * zlib provides 'MAXSEG_64K' which, if defined, indicates the + * same limit and pngconf.h (already included) sets the limit + * if certain operating systems are detected. + */ +#if defined(MAXSEG_64K) && !defined(PNG_MAX_MALLOC_64K) +# define PNG_MAX_MALLOC_64K +#endif + +#ifndef PNG_UNUSED +/* Unused formal parameter warnings are silenced using the following macro + * which is expected to have no bad effects on performance (optimizing + * compilers will probably remove it entirely). Note that if you replace + * it with something other than whitespace, you must include the terminating + * semicolon. + */ +# define PNG_UNUSED(param) (void)param; +#endif + +/* Just a little check that someone hasn't tried to define something + * contradictory. + */ +#if (PNG_ZBUF_SIZE > 65536L) && defined(PNG_MAX_MALLOC_64K) +# undef PNG_ZBUF_SIZE +# define PNG_ZBUF_SIZE 65536L +#endif + +/* If warnings or errors are turned off the code is disabled or redirected here. + * From 1.5.4 functions have been added to allow very limited formatting of + * error and warning messages - this code will also be disabled here. + */ +#ifdef PNG_WARNINGS_SUPPORTED +# define PNG_WARNING_PARAMETERS(p) png_warning_parameters p; +#else +# define png_warning_parameter(p,number,string) ((void)0) +# define png_warning_parameter_unsigned(p,number,format,value) ((void)0) +# define png_warning_parameter_signed(p,number,format,value) ((void)0) +# define png_formatted_warning(pp,p,message) ((void)(pp)) +# define PNG_WARNING_PARAMETERS(p) +#endif +#ifndef PNG_ERROR_TEXT_SUPPORTED +# define png_fixed_error(s1,s2) png_err(s1) +#endif + +/* C allows up-casts from (void*) to any pointer and (const void*) to any + * pointer to a const object. C++ regards this as a type error and requires an + * explicit, static, cast and provides the static_cast<> rune to ensure that + * const is not cast away. + */ +#ifdef __cplusplus +# define png_voidcast(type, value) static_cast(value) +# define png_constcast(type, value) const_cast(value) +# define png_aligncast(type, value) \ + static_cast(static_cast(value)) +# define png_aligncastconst(type, value) \ + static_cast(static_cast(value)) +#else +# define png_voidcast(type, value) (value) +# define png_constcast(type, value) ((type)(value)) +# define png_aligncast(type, value) ((void*)(value)) +# define png_aligncastconst(type, value) ((const void*)(value)) +#endif /* __cplusplus */ + +/* Some fixed point APIs are still required even if not exported because + * they get used by the corresponding floating point APIs. This magic + * deals with this: + */ +#ifdef PNG_FIXED_POINT_SUPPORTED +# define PNGFAPI PNGAPI +#else +# define PNGFAPI /* PRIVATE */ +#endif + +#ifndef PNG_VERSION_INFO_ONLY +/* Other defines specific to compilers can go here. Try to keep + * them inside an appropriate ifdef/endif pair for portability. + */ +#if defined(PNG_FLOATING_POINT_SUPPORTED) ||\ + defined(PNG_FLOATING_ARITHMETIC_SUPPORTED) + /* png.c requires the following ANSI-C constants if the conversion of + * floating point to ASCII is implemented therein: + * + * DBL_DIG Maximum number of decimal digits (can be set to any constant) + * DBL_MIN Smallest normalized fp number (can be set to an arbitrary value) + * DBL_MAX Maximum floating point number (can be set to an arbitrary value) + */ +# include + +# if (defined(__MWERKS__) && defined(macintosh)) || defined(applec) || \ + defined(THINK_C) || defined(__SC__) || defined(TARGET_OS_MAC) + /* We need to check that hasn't already been included earlier + * as it seems it doesn't agree with , yet we should really use + * if possible. + */ +# if !defined(__MATH_H__) && !defined(__MATH_H) && !defined(__cmath__) +# include +# endif +# else +# include +# endif +# if defined(_AMIGA) && defined(__SASC) && defined(_M68881) + /* Amiga SAS/C: We must include builtin FPU functions when compiling using + * MATH=68881 + */ +# include +# endif +#endif + +/* This provides the non-ANSI (far) memory allocation routines. */ +#if defined(__TURBOC__) && defined(__MSDOS__) +# include +# include +#endif + +#if defined(WIN32) || defined(_Windows) || defined(_WINDOWS) || \ + defined(_WIN32) || defined(__WIN32__) +# include /* defines _WINDOWS_ macro */ +#endif +#endif /* PNG_VERSION_INFO_ONLY */ + +/* Moved here around 1.5.0beta36 from pngconf.h */ +/* Users may want to use these so they are not private. Any library + * functions that are passed far data must be model-independent. + */ + +/* Memory model/platform independent fns */ +#ifndef PNG_ABORT +# ifdef _WINDOWS_ +# define PNG_ABORT() ExitProcess(0) +# else +# define PNG_ABORT() abort() +# endif +#endif + +/* These macros may need to be architecture dependent. */ +#define PNG_ALIGN_NONE 0 /* do not use data alignment */ +#define PNG_ALIGN_ALWAYS 1 /* assume unaligned accesses are OK */ +#ifdef offsetof +# define PNG_ALIGN_OFFSET 2 /* use offsetof to determine alignment */ +#else +# define PNG_ALIGN_OFFSET -1 /* prevent the use of this */ +#endif +#define PNG_ALIGN_SIZE 3 /* use sizeof to determine alignment */ + +#ifndef PNG_ALIGN_TYPE + /* Default to using aligned access optimizations and requiring alignment to a + * multiple of the data type size. Override in a compiler specific fashion + * if necessary by inserting tests here: + */ +# define PNG_ALIGN_TYPE PNG_ALIGN_SIZE +#endif + +#if PNG_ALIGN_TYPE == PNG_ALIGN_SIZE + /* This is used because in some compiler implementations non-aligned + * structure members are supported, so the offsetof approach below fails. + * Set PNG_ALIGN_SIZE=0 for compiler combinations where unaligned access + * is good for performance. Do not do this unless you have tested the result + * and understand it. + */ +# define png_alignof(type) (sizeof (type)) +#else +# if PNG_ALIGN_TYPE == PNG_ALIGN_OFFSET +# define png_alignof(type) offsetof(struct{char c; type t;}, t) +# else +# if PNG_ALIGN_TYPE == PNG_ALIGN_ALWAYS +# define png_alignof(type) (1) +# endif + /* Else leave png_alignof undefined to prevent use thereof */ +# endif +#endif + +/* This implicitly assumes alignment is always to a power of 2. */ +#ifdef png_alignof +# define png_isaligned(ptr, type)\ + ((((const char*)ptr-(const char*)0) & (png_alignof(type)-1)) == 0) +#else +# define png_isaligned(ptr, type) 0 +#endif + +/* End of memory model/platform independent support */ +/* End of 1.5.0beta36 move from pngconf.h */ + +/* CONSTANTS and UTILITY MACROS + * These are used internally by libpng and not exposed in the API + */ + +/* Various modes of operation. Note that after an init, mode is set to + * zero automatically when the structure is created. Three of these + * are defined in png.h because they need to be visible to applications + * that call png_set_unknown_chunk(). + */ +/* #define PNG_HAVE_IHDR 0x01 (defined in png.h) */ +/* #define PNG_HAVE_PLTE 0x02 (defined in png.h) */ +#define PNG_HAVE_IDAT 0x04 +/* #define PNG_AFTER_IDAT 0x08 (defined in png.h) */ +#define PNG_HAVE_IEND 0x10 + /* 0x20 (unused) */ + /* 0x40 (unused) */ + /* 0x80 (unused) */ +#define PNG_HAVE_CHUNK_HEADER 0x100 +#define PNG_WROTE_tIME 0x200 +#define PNG_WROTE_INFO_BEFORE_PLTE 0x400 +#define PNG_BACKGROUND_IS_GRAY 0x800 +#define PNG_HAVE_PNG_SIGNATURE 0x1000 +#define PNG_HAVE_CHUNK_AFTER_IDAT 0x2000 /* Have another chunk after IDAT */ + /* 0x4000 (unused) */ +#define PNG_IS_READ_STRUCT 0x8000 /* Else is a write struct */ + +/* Flags for the transformations the PNG library does on the image data */ +#define PNG_BGR 0x0001 +#define PNG_INTERLACE 0x0002 +#define PNG_PACK 0x0004 +#define PNG_SHIFT 0x0008 +#define PNG_SWAP_BYTES 0x0010 +#define PNG_INVERT_MONO 0x0020 +#define PNG_QUANTIZE 0x0040 +#define PNG_COMPOSE 0x0080 /* Was PNG_BACKGROUND */ +#define PNG_BACKGROUND_EXPAND 0x0100 +#define PNG_EXPAND_16 0x0200 /* Added to libpng 1.5.2 */ +#define PNG_16_TO_8 0x0400 /* Becomes 'chop' in 1.5.4 */ +#define PNG_RGBA 0x0800 +#define PNG_EXPAND 0x1000 +#define PNG_GAMMA 0x2000 +#define PNG_GRAY_TO_RGB 0x4000 +#define PNG_FILLER 0x8000 +#define PNG_PACKSWAP 0x10000 +#define PNG_SWAP_ALPHA 0x20000 +#define PNG_STRIP_ALPHA 0x40000 +#define PNG_INVERT_ALPHA 0x80000 +#define PNG_USER_TRANSFORM 0x100000 +#define PNG_RGB_TO_GRAY_ERR 0x200000 +#define PNG_RGB_TO_GRAY_WARN 0x400000 +#define PNG_RGB_TO_GRAY 0x600000 /* two bits, RGB_TO_GRAY_ERR|WARN */ +#define PNG_ENCODE_ALPHA 0x800000 /* Added to libpng-1.5.4 */ +#define PNG_ADD_ALPHA 0x1000000 /* Added to libpng-1.2.7 */ +#define PNG_EXPAND_tRNS 0x2000000 /* Added to libpng-1.2.9 */ +#define PNG_SCALE_16_TO_8 0x4000000 /* Added to libpng-1.5.4 */ + /* 0x8000000 unused */ + /* 0x10000000 unused */ + /* 0x20000000 unused */ + /* 0x40000000 unused */ +/* Flags for png_create_struct */ +#define PNG_STRUCT_PNG 0x0001 +#define PNG_STRUCT_INFO 0x0002 + +/* Scaling factor for filter heuristic weighting calculations */ +#define PNG_WEIGHT_FACTOR (1<<(PNG_WEIGHT_SHIFT)) +#define PNG_COST_FACTOR (1<<(PNG_COST_SHIFT)) + +/* Flags for the png_ptr->flags rather than declaring a byte for each one */ +#define PNG_FLAG_ZLIB_CUSTOM_STRATEGY 0x0001 +#define PNG_FLAG_ZSTREAM_INITIALIZED 0x0002 /* Added to libpng-1.6.0 */ + /* 0x0004 unused */ +#define PNG_FLAG_ZSTREAM_ENDED 0x0008 /* Added to libpng-1.6.0 */ + /* 0x0010 unused */ + /* 0x0020 unused */ +#define PNG_FLAG_ROW_INIT 0x0040 +#define PNG_FLAG_FILLER_AFTER 0x0080 +#define PNG_FLAG_CRC_ANCILLARY_USE 0x0100 +#define PNG_FLAG_CRC_ANCILLARY_NOWARN 0x0200 +#define PNG_FLAG_CRC_CRITICAL_USE 0x0400 +#define PNG_FLAG_CRC_CRITICAL_IGNORE 0x0800 +#define PNG_FLAG_ASSUME_sRGB 0x1000 /* Added to libpng-1.5.4 */ +#define PNG_FLAG_OPTIMIZE_ALPHA 0x2000 /* Added to libpng-1.5.4 */ +#define PNG_FLAG_DETECT_UNINITIALIZED 0x4000 /* Added to libpng-1.5.4 */ +/* #define PNG_FLAG_KEEP_UNKNOWN_CHUNKS 0x8000 */ +/* #define PNG_FLAG_KEEP_UNSAFE_CHUNKS 0x10000 */ +#define PNG_FLAG_LIBRARY_MISMATCH 0x20000 +#define PNG_FLAG_STRIP_ERROR_NUMBERS 0x40000 +#define PNG_FLAG_STRIP_ERROR_TEXT 0x80000 +#define PNG_FLAG_BENIGN_ERRORS_WARN 0x100000 /* Added to libpng-1.4.0 */ +#define PNG_FLAG_APP_WARNINGS_WARN 0x200000 /* Added to libpng-1.6.0 */ +#define PNG_FLAG_APP_ERRORS_WARN 0x400000 /* Added to libpng-1.6.0 */ + /* 0x800000 unused */ + /* 0x1000000 unused */ + /* 0x2000000 unused */ + /* 0x4000000 unused */ + /* 0x8000000 unused */ + /* 0x10000000 unused */ + /* 0x20000000 unused */ + /* 0x40000000 unused */ + +#define PNG_FLAG_CRC_ANCILLARY_MASK (PNG_FLAG_CRC_ANCILLARY_USE | \ + PNG_FLAG_CRC_ANCILLARY_NOWARN) + +#define PNG_FLAG_CRC_CRITICAL_MASK (PNG_FLAG_CRC_CRITICAL_USE | \ + PNG_FLAG_CRC_CRITICAL_IGNORE) + +#define PNG_FLAG_CRC_MASK (PNG_FLAG_CRC_ANCILLARY_MASK | \ + PNG_FLAG_CRC_CRITICAL_MASK) + +/* Save typing and make code easier to understand */ + +#define PNG_COLOR_DIST(c1, c2) (abs((int)((c1).red) - (int)((c2).red)) + \ + abs((int)((c1).green) - (int)((c2).green)) + \ + abs((int)((c1).blue) - (int)((c2).blue))) + +/* Added to libpng-1.6.0: scale a 16-bit value in the range 0..65535 to 0..255 + * by dividing by 257 *with rounding*. This macro is exact for the given range. + * See the discourse in pngrtran.c png_do_scale_16_to_8. The values in the + * macro were established by experiment (modifying the added value). The macro + * has a second variant that takes a value already scaled by 255 and divides by + * 65535 - this has a maximum error of .502. Over the range 0..65535*65535 it + * only gives off-by-one errors and only for 0.5% (1 in 200) of the values. + */ +#define PNG_DIV65535(v24) (((v24) + 32895) >> 16) +#define PNG_DIV257(v16) PNG_DIV65535((png_uint_32)(v16) * 255) + +/* Added to libpng-1.2.6 JB */ +#define PNG_ROWBYTES(pixel_bits, width) \ + ((pixel_bits) >= 8 ? \ + ((png_size_t)(width) * (((png_size_t)(pixel_bits)) >> 3)) : \ + (( ((png_size_t)(width) * ((png_size_t)(pixel_bits))) + 7) >> 3) ) + +/* PNG_OUT_OF_RANGE returns true if value is outside the range + * ideal-delta..ideal+delta. Each argument is evaluated twice. + * "ideal" and "delta" should be constants, normally simple + * integers, "value" a variable. Added to libpng-1.2.6 JB + */ +#define PNG_OUT_OF_RANGE(value, ideal, delta) \ + ( (value) < (ideal)-(delta) || (value) > (ideal)+(delta) ) + +/* Conversions between fixed and floating point, only defined if + * required (to make sure the code doesn't accidentally use float + * when it is supposedly disabled.) + */ +#ifdef PNG_FLOATING_POINT_SUPPORTED +/* The floating point conversion can't overflow, though it can and + * does lose accuracy relative to the original fixed point value. + * In practice this doesn't matter because png_fixed_point only + * stores numbers with very low precision. The png_ptr and s + * arguments are unused by default but are there in case error + * checking becomes a requirement. + */ +#define png_float(png_ptr, fixed, s) (.00001 * (fixed)) + +/* The fixed point conversion performs range checking and evaluates + * its argument multiple times, so must be used with care. The + * range checking uses the PNG specification values for a signed + * 32 bit fixed point value except that the values are deliberately + * rounded-to-zero to an integral value - 21474 (21474.83 is roughly + * (2^31-1) * 100000). 's' is a string that describes the value being + * converted. + * + * NOTE: this macro will raise a png_error if the range check fails, + * therefore it is normally only appropriate to use this on values + * that come from API calls or other sources where an out of range + * error indicates a programming error, not a data error! + * + * NOTE: by default this is off - the macro is not used - because the + * function call saves a lot of code. + */ +#ifdef PNG_FIXED_POINT_MACRO_SUPPORTED +#define png_fixed(png_ptr, fp, s) ((fp) <= 21474 && (fp) >= -21474 ?\ + ((png_fixed_point)(100000 * (fp))) : (png_fixed_error(png_ptr, s),0)) +#endif +/* else the corresponding function is defined below, inside the scope of the + * cplusplus test. + */ +#endif + +/* Constants for known chunk types. If you need to add a chunk, define the name + * here. For historical reasons these constants have the form png_; i.e. + * the prefix is lower case. Please use decimal values as the parameters to + * match the ISO PNG specification and to avoid relying on the C locale + * interpretation of character values. + * + * Prior to 1.5.6 these constants were strings, as of 1.5.6 png_uint_32 values + * are computed and a new macro (PNG_STRING_FROM_CHUNK) added to allow a string + * to be generated if required. + * + * PNG_32b correctly produces a value shifted by up to 24 bits, even on + * architectures where (int) is only 16 bits. + */ +#define PNG_32b(b,s) ((png_uint_32)(b) << (s)) +#define PNG_U32(b1,b2,b3,b4) \ + (PNG_32b(b1,24) | PNG_32b(b2,16) | PNG_32b(b3,8) | PNG_32b(b4,0)) + +/* Constants for known chunk types. + * + * MAINTAINERS: If you need to add a chunk, define the name here. + * For historical reasons these constants have the form png_; i.e. + * the prefix is lower case. Please use decimal values as the parameters to + * match the ISO PNG specification and to avoid relying on the C locale + * interpretation of character values. Please keep the list sorted. + * + * Notice that PNG_U32 is used to define a 32-bit value for the 4 byte chunk + * type. In fact the specification does not express chunk types this way, + * however using a 32-bit value means that the chunk type can be read from the + * stream using exactly the same code as used for a 32-bit unsigned value and + * can be examined far more efficiently (using one arithmetic compare). + * + * Prior to 1.5.6 the chunk type constants were expressed as C strings. The + * libpng API still uses strings for 'unknown' chunks and a macro, + * PNG_STRING_FROM_CHUNK, allows a string to be generated if required. Notice + * that for portable code numeric values must still be used; the string "IHDR" + * is not portable and neither is PNG_U32('I', 'H', 'D', 'R'). + * + * In 1.7.0 the definitions will be made public in png.h to avoid having to + * duplicate the same definitions in application code. + */ +#define png_IDAT PNG_U32( 73, 68, 65, 84) +#define png_IEND PNG_U32( 73, 69, 78, 68) +#define png_IHDR PNG_U32( 73, 72, 68, 82) +#define png_PLTE PNG_U32( 80, 76, 84, 69) +#define png_bKGD PNG_U32( 98, 75, 71, 68) +#define png_cHRM PNG_U32( 99, 72, 82, 77) +#define png_fRAc PNG_U32(102, 82, 65, 99) /* registered, not defined */ +#define png_gAMA PNG_U32(103, 65, 77, 65) +#define png_gIFg PNG_U32(103, 73, 70, 103) +#define png_gIFt PNG_U32(103, 73, 70, 116) /* deprecated */ +#define png_gIFx PNG_U32(103, 73, 70, 120) +#define png_hIST PNG_U32(104, 73, 83, 84) +#define png_iCCP PNG_U32(105, 67, 67, 80) +#define png_iTXt PNG_U32(105, 84, 88, 116) +#define png_oFFs PNG_U32(111, 70, 70, 115) +#define png_pCAL PNG_U32(112, 67, 65, 76) +#define png_pHYs PNG_U32(112, 72, 89, 115) +#define png_sBIT PNG_U32(115, 66, 73, 84) +#define png_sCAL PNG_U32(115, 67, 65, 76) +#define png_sPLT PNG_U32(115, 80, 76, 84) +#define png_sRGB PNG_U32(115, 82, 71, 66) +#define png_sTER PNG_U32(115, 84, 69, 82) +#define png_tEXt PNG_U32(116, 69, 88, 116) +#define png_tIME PNG_U32(116, 73, 77, 69) +#define png_tRNS PNG_U32(116, 82, 78, 83) +#define png_zTXt PNG_U32(122, 84, 88, 116) + +/* The following will work on (signed char*) strings, whereas the get_uint_32 + * macro will fail on top-bit-set values because of the sign extension. + */ +#define PNG_CHUNK_FROM_STRING(s)\ + PNG_U32(0xff&(s)[0], 0xff&(s)[1], 0xff&(s)[2], 0xff&(s)[3]) + +/* This uses (char), not (png_byte) to avoid warnings on systems where (char) is + * signed and the argument is a (char[]) This macro will fail miserably on + * systems where (char) is more than 8 bits. + */ +#define PNG_STRING_FROM_CHUNK(s,c)\ + (void)(((char*)(s))[0]=(char)((c)>>24), ((char*)(s))[1]=(char)((c)>>16),\ + ((char*)(s))[2]=(char)((c)>>8), ((char*)(s))[3]=(char)((c))) + +/* Do the same but terminate with a null character. */ +#define PNG_CSTRING_FROM_CHUNK(s,c)\ + (void)(PNG_STRING_FROM_CHUNK(s,c), ((char*)(s))[4] = 0) + +/* Test on flag values as defined in the spec (section 5.4): */ +#define PNG_CHUNK_ANCILLARY(c) (1 & ((c) >> 29)) +#define PNG_CHUNK_CRITICAL(c) (!PNG_CHUNK_ANCILLARY(c)) +#define PNG_CHUNK_PRIVATE(c) (1 & ((c) >> 21)) +#define PNG_CHUNK_RESERVED(c) (1 & ((c) >> 13)) +#define PNG_CHUNK_SAFE_TO_COPY(c) (1 & ((c) >> 5)) + +/* Gamma values (new at libpng-1.5.4): */ +#define PNG_GAMMA_MAC_OLD 151724 /* Assume '1.8' is really 2.2/1.45! */ +#define PNG_GAMMA_MAC_INVERSE 65909 +#define PNG_GAMMA_sRGB_INVERSE 45455 + +/* Almost everything below is C specific; the #defines above can be used in + * non-C code (so long as it is C-preprocessed) the rest of this stuff cannot. + */ +#ifndef PNG_VERSION_INFO_ONLY + +#include "pngstruct.h" +#include "pnginfo.h" + +/* Validate the include paths - the include path used to generate pnglibconf.h + * must match that used in the build, or we must be using pnglibconf.h.prebuilt: + */ +#if PNG_ZLIB_VERNUM != 0 && PNG_ZLIB_VERNUM != ZLIB_VERNUM +# error ZLIB_VERNUM != PNG_ZLIB_VERNUM \ + "-I (include path) error: see the notes in pngpriv.h" + /* This means that when pnglibconf.h was built the copy of zlib.h that it + * used is not the same as the one being used here. Because the build of + * libpng makes decisions to use inflateInit2 and inflateReset2 based on the + * zlib version number and because this affects handling of certain broken + * PNG files the -I directives must match. + * + * The most likely explanation is that you passed a -I in CFLAGS. This will + * not work; all the preprocessor directories and in particular all the -I + * directives must be in CPPFLAGS. + */ +#endif + +/* This is used for 16 bit gamma tables -- only the top level pointers are + * const; this could be changed: + */ +typedef const png_uint_16p * png_const_uint_16pp; + +/* Added to libpng-1.5.7: sRGB conversion tables */ +#if defined(PNG_SIMPLIFIED_READ_SUPPORTED) ||\ + defined(PNG_SIMPLIFIED_WRITE_SUPPORTED) +#ifdef PNG_SIMPLIFIED_READ_SUPPORTED +PNG_INTERNAL_DATA(const png_uint_16, png_sRGB_table, [256]); + /* Convert from an sRGB encoded value 0..255 to a 16-bit linear value, + * 0..65535. This table gives the closest 16-bit answers (no errors). + */ +#endif + +PNG_INTERNAL_DATA(const png_uint_16, png_sRGB_base, [512]); +PNG_INTERNAL_DATA(const png_byte, png_sRGB_delta, [512]); + +#define PNG_sRGB_FROM_LINEAR(linear) ((png_byte)((png_sRGB_base[(linear)>>15] +\ + ((((linear)&0x7fff)*png_sRGB_delta[(linear)>>15])>>12)) >> 8)) + /* Given a value 'linear' in the range 0..255*65535 calculate the 8-bit sRGB + * encoded value with maximum error 0.646365. Note that the input is not a + * 16-bit value; it has been multiplied by 255! */ +#endif /* PNG_SIMPLIFIED_READ/WRITE */ + + +/* Inhibit C++ name-mangling for libpng functions but not for system calls. */ +#ifdef __cplusplus +extern "C" { +#endif /* __cplusplus */ + +/* Internal functions; these are not exported from a DLL however because they + * are used within several of the C source files they have to be C extern. + * + * All of these functions must be declared with PNG_INTERNAL_FUNCTION. + */ + +/* Zlib support */ +#define PNG_UNEXPECTED_ZLIB_RETURN (-7) +PNG_INTERNAL_FUNCTION(void, png_zstream_error,(png_structrp png_ptr, int ret), + PNG_EMPTY); + /* Used by the zlib handling functions to ensure that z_stream::msg is always + * set before they return. + */ + +#ifdef PNG_WRITE_SUPPORTED +PNG_INTERNAL_FUNCTION(void,png_free_buffer_list,(png_structrp png_ptr, + png_compression_bufferp *list),PNG_EMPTY); + /* Free the buffer list used by the compressed write code. */ +#endif + +#if defined(PNG_FLOATING_POINT_SUPPORTED) && \ + !defined(PNG_FIXED_POINT_MACRO_SUPPORTED) && \ + (defined(PNG_gAMA_SUPPORTED) || defined(PNG_cHRM_SUPPORTED) || \ + defined(PNG_sCAL_SUPPORTED) || defined(PNG_READ_BACKGROUND_SUPPORTED) || \ + defined(PNG_READ_RGB_TO_GRAY_SUPPORTED)) || \ + (defined(PNG_sCAL_SUPPORTED) && \ + defined(PNG_FLOATING_ARITHMETIC_SUPPORTED)) +PNG_INTERNAL_FUNCTION(png_fixed_point,png_fixed,(png_const_structrp png_ptr, + double fp, png_const_charp text),PNG_EMPTY); +#endif + +/* Check the user version string for compatibility, returns false if the version + * numbers aren't compatible. + */ +PNG_INTERNAL_FUNCTION(int,png_user_version_check,(png_structrp png_ptr, + png_const_charp user_png_ver),PNG_EMPTY); + +/* Internal base allocator - no messages, NULL on failure to allocate. This + * does, however, call the application provided allocator and that could call + * png_error (although that would be a bug in the application implementation.) + */ +PNG_INTERNAL_FUNCTION(png_voidp,png_malloc_base,(png_const_structrp png_ptr, + png_alloc_size_t size),PNG_ALLOCATED); + +#if defined(PNG_TEXT_SUPPORTED) || defined(PNG_sPLT_SUPPORTED) ||\ + defined(PNG_STORE_UNKNOWN_CHUNKS_SUPPORTED) +/* Internal array allocator, outputs no error or warning messages on failure, + * just returns NULL. + */ +PNG_INTERNAL_FUNCTION(png_voidp,png_malloc_array,(png_const_structrp png_ptr, + int nelements, size_t element_size),PNG_ALLOCATED); + +/* The same but an existing array is extended by add_elements. This function + * also memsets the new elements to 0 and copies the old elements. The old + * array is not freed or altered. + */ +PNG_INTERNAL_FUNCTION(png_voidp,png_realloc_array,(png_const_structrp png_ptr, + png_const_voidp array, int old_elements, int add_elements, + size_t element_size),PNG_ALLOCATED); +#endif /* text, sPLT or unknown chunks */ + +/* Magic to create a struct when there is no struct to call the user supplied + * memory allocators. Because error handling has not been set up the memory + * handlers can't safely call png_error, but this is an obscure and undocumented + * restriction so libpng has to assume that the 'free' handler, at least, might + * call png_error. + */ +PNG_INTERNAL_FUNCTION(png_structp,png_create_png_struct, + (png_const_charp user_png_ver, png_voidp error_ptr, png_error_ptr error_fn, + png_error_ptr warn_fn, png_voidp mem_ptr, png_malloc_ptr malloc_fn, + png_free_ptr free_fn),PNG_ALLOCATED); + +/* Free memory from internal libpng struct */ +PNG_INTERNAL_FUNCTION(void,png_destroy_png_struct,(png_structrp png_ptr), + PNG_EMPTY); + +/* Free an allocated jmp_buf (always succeeds) */ +PNG_INTERNAL_FUNCTION(void,png_free_jmpbuf,(png_structrp png_ptr),PNG_EMPTY); + +/* Function to allocate memory for zlib. PNGAPI is disallowed. */ +PNG_INTERNAL_FUNCTION(voidpf,png_zalloc,(voidpf png_ptr, uInt items, uInt size), + PNG_ALLOCATED); + +/* Function to free memory for zlib. PNGAPI is disallowed. */ +PNG_INTERNAL_FUNCTION(void,png_zfree,(voidpf png_ptr, voidpf ptr),PNG_EMPTY); + +/* Next four functions are used internally as callbacks. PNGCBAPI is required + * but not PNG_EXPORT. PNGAPI added at libpng version 1.2.3, changed to + * PNGCBAPI at 1.5.0 + */ + +PNG_INTERNAL_FUNCTION(void PNGCBAPI,png_default_read_data,(png_structp png_ptr, + png_bytep data, png_size_t length),PNG_EMPTY); + +#ifdef PNG_PROGRESSIVE_READ_SUPPORTED +PNG_INTERNAL_FUNCTION(void PNGCBAPI,png_push_fill_buffer,(png_structp png_ptr, + png_bytep buffer, png_size_t length),PNG_EMPTY); +#endif + +PNG_INTERNAL_FUNCTION(void PNGCBAPI,png_default_write_data,(png_structp png_ptr, + png_bytep data, png_size_t length),PNG_EMPTY); + +#ifdef PNG_WRITE_FLUSH_SUPPORTED +# ifdef PNG_STDIO_SUPPORTED +PNG_INTERNAL_FUNCTION(void PNGCBAPI,png_default_flush,(png_structp png_ptr), + PNG_EMPTY); +# endif +#endif + +/* Reset the CRC variable */ +PNG_INTERNAL_FUNCTION(void,png_reset_crc,(png_structrp png_ptr),PNG_EMPTY); + +/* Write the "data" buffer to whatever output you are using */ +PNG_INTERNAL_FUNCTION(void,png_write_data,(png_structrp png_ptr, + png_const_bytep data, png_size_t length),PNG_EMPTY); + +/* Read and check the PNG file signature */ +PNG_INTERNAL_FUNCTION(void,png_read_sig,(png_structrp png_ptr, + png_inforp info_ptr),PNG_EMPTY); + +/* Read the chunk header (length + type name) */ +PNG_INTERNAL_FUNCTION(png_uint_32,png_read_chunk_header,(png_structrp png_ptr), + PNG_EMPTY); + +/* Read data from whatever input you are using into the "data" buffer */ +PNG_INTERNAL_FUNCTION(void,png_read_data,(png_structrp png_ptr, png_bytep data, + png_size_t length),PNG_EMPTY); + +/* Read bytes into buf, and update png_ptr->crc */ +PNG_INTERNAL_FUNCTION(void,png_crc_read,(png_structrp png_ptr, png_bytep buf, + png_uint_32 length),PNG_EMPTY); + +/* Read "skip" bytes, read the file crc, and (optionally) verify png_ptr->crc */ +PNG_INTERNAL_FUNCTION(int,png_crc_finish,(png_structrp png_ptr, + png_uint_32 skip),PNG_EMPTY); + +/* Read the CRC from the file and compare it to the libpng calculated CRC */ +PNG_INTERNAL_FUNCTION(int,png_crc_error,(png_structrp png_ptr),PNG_EMPTY); + +/* Calculate the CRC over a section of data. Note that we are only + * passing a maximum of 64K on systems that have this as a memory limit, + * since this is the maximum buffer size we can specify. + */ +PNG_INTERNAL_FUNCTION(void,png_calculate_crc,(png_structrp png_ptr, + png_const_bytep ptr, png_size_t length),PNG_EMPTY); + +#ifdef PNG_WRITE_FLUSH_SUPPORTED +PNG_INTERNAL_FUNCTION(void,png_flush,(png_structrp png_ptr),PNG_EMPTY); +#endif + +/* Write various chunks */ + +/* Write the IHDR chunk, and update the png_struct with the necessary + * information. + */ +PNG_INTERNAL_FUNCTION(void,png_write_IHDR,(png_structrp png_ptr, + png_uint_32 width, png_uint_32 height, int bit_depth, int color_type, + int compression_method, int filter_method, int interlace_method),PNG_EMPTY); + +PNG_INTERNAL_FUNCTION(void,png_write_PLTE,(png_structrp png_ptr, + png_const_colorp palette, png_uint_32 num_pal),PNG_EMPTY); + +PNG_INTERNAL_FUNCTION(void,png_compress_IDAT,(png_structrp png_ptr, + png_const_bytep row_data, png_alloc_size_t row_data_length, int flush), + PNG_EMPTY); + +PNG_INTERNAL_FUNCTION(void,png_write_IEND,(png_structrp png_ptr),PNG_EMPTY); + +#ifdef PNG_WRITE_gAMA_SUPPORTED +PNG_INTERNAL_FUNCTION(void,png_write_gAMA_fixed,(png_structrp png_ptr, + png_fixed_point file_gamma),PNG_EMPTY); +#endif + +#ifdef PNG_WRITE_sBIT_SUPPORTED +PNG_INTERNAL_FUNCTION(void,png_write_sBIT,(png_structrp png_ptr, + png_const_color_8p sbit, int color_type),PNG_EMPTY); +#endif + +#ifdef PNG_WRITE_cHRM_SUPPORTED +PNG_INTERNAL_FUNCTION(void,png_write_cHRM_fixed,(png_structrp png_ptr, + const png_xy *xy), PNG_EMPTY); + /* The xy value must have been previously validated */ +#endif + +#ifdef PNG_WRITE_sRGB_SUPPORTED +PNG_INTERNAL_FUNCTION(void,png_write_sRGB,(png_structrp png_ptr, + int intent),PNG_EMPTY); +#endif + +#ifdef PNG_WRITE_iCCP_SUPPORTED +PNG_INTERNAL_FUNCTION(void,png_write_iCCP,(png_structrp png_ptr, + png_const_charp name, png_const_bytep profile), PNG_EMPTY); + /* The profile must have been previously validated for correctness, the + * length comes from the first four bytes. Only the base, deflate, + * compression is supported. + */ +#endif + +#ifdef PNG_WRITE_sPLT_SUPPORTED +PNG_INTERNAL_FUNCTION(void,png_write_sPLT,(png_structrp png_ptr, + png_const_sPLT_tp palette),PNG_EMPTY); +#endif + +#ifdef PNG_WRITE_tRNS_SUPPORTED +PNG_INTERNAL_FUNCTION(void,png_write_tRNS,(png_structrp png_ptr, + png_const_bytep trans, png_const_color_16p values, int number, + int color_type),PNG_EMPTY); +#endif + +#ifdef PNG_WRITE_bKGD_SUPPORTED +PNG_INTERNAL_FUNCTION(void,png_write_bKGD,(png_structrp png_ptr, + png_const_color_16p values, int color_type),PNG_EMPTY); +#endif + +#ifdef PNG_WRITE_hIST_SUPPORTED +PNG_INTERNAL_FUNCTION(void,png_write_hIST,(png_structrp png_ptr, + png_const_uint_16p hist, int num_hist),PNG_EMPTY); +#endif + +/* Chunks that have keywords */ +#ifdef PNG_WRITE_tEXt_SUPPORTED +PNG_INTERNAL_FUNCTION(void,png_write_tEXt,(png_structrp png_ptr, + png_const_charp key, png_const_charp text, png_size_t text_len),PNG_EMPTY); +#endif + +#ifdef PNG_WRITE_zTXt_SUPPORTED +PNG_INTERNAL_FUNCTION(void,png_write_zTXt,(png_structrp png_ptr, png_const_charp + key, png_const_charp text, png_size_t text_len, int compression),PNG_EMPTY); +#endif + +#ifdef PNG_WRITE_iTXt_SUPPORTED +PNG_INTERNAL_FUNCTION(void,png_write_iTXt,(png_structrp png_ptr, + int compression, png_const_charp key, png_const_charp lang, + png_const_charp lang_key, png_const_charp text),PNG_EMPTY); +#endif + +#ifdef PNG_TEXT_SUPPORTED /* Added at version 1.0.14 and 1.2.4 */ +PNG_INTERNAL_FUNCTION(int,png_set_text_2,(png_const_structrp png_ptr, + png_inforp info_ptr, png_const_textp text_ptr, int num_text),PNG_EMPTY); +#endif + +#ifdef PNG_WRITE_oFFs_SUPPORTED +PNG_INTERNAL_FUNCTION(void,png_write_oFFs,(png_structrp png_ptr, + png_int_32 x_offset, png_int_32 y_offset, int unit_type),PNG_EMPTY); +#endif + +#ifdef PNG_WRITE_pCAL_SUPPORTED +PNG_INTERNAL_FUNCTION(void,png_write_pCAL,(png_structrp png_ptr, + png_charp purpose, png_int_32 X0, png_int_32 X1, int type, int nparams, + png_const_charp units, png_charpp params),PNG_EMPTY); +#endif + +#ifdef PNG_WRITE_pHYs_SUPPORTED +PNG_INTERNAL_FUNCTION(void,png_write_pHYs,(png_structrp png_ptr, + png_uint_32 x_pixels_per_unit, png_uint_32 y_pixels_per_unit, + int unit_type),PNG_EMPTY); +#endif + +#ifdef PNG_WRITE_tIME_SUPPORTED +PNG_INTERNAL_FUNCTION(void,png_write_tIME,(png_structrp png_ptr, + png_const_timep mod_time),PNG_EMPTY); +#endif + +#ifdef PNG_WRITE_sCAL_SUPPORTED +PNG_INTERNAL_FUNCTION(void,png_write_sCAL_s,(png_structrp png_ptr, + int unit, png_const_charp width, png_const_charp height),PNG_EMPTY); +#endif + +/* Called when finished processing a row of data */ +PNG_INTERNAL_FUNCTION(void,png_write_finish_row,(png_structrp png_ptr), + PNG_EMPTY); + +/* Internal use only. Called before first row of data */ +PNG_INTERNAL_FUNCTION(void,png_write_start_row,(png_structrp png_ptr), + PNG_EMPTY); + +/* Combine a row of data, dealing with alpha, etc. if requested. 'row' is an + * array of png_ptr->width pixels. If the image is not interlaced or this + * is the final pass this just does a memcpy, otherwise the "display" flag + * is used to determine whether to copy pixels that are not in the current pass. + * + * Because 'png_do_read_interlace' (below) replicates pixels this allows this + * function to achieve the documented 'blocky' appearance during interlaced read + * if display is 1 and the 'sparkle' appearance, where existing pixels in 'row' + * are not changed if they are not in the current pass, when display is 0. + * + * 'display' must be 0 or 1, otherwise the memcpy will be done regardless. + * + * The API always reads from the png_struct row buffer and always assumes that + * it is full width (png_do_read_interlace has already been called.) + * + * This function is only ever used to write to row buffers provided by the + * caller of the relevant libpng API and the row must have already been + * transformed by the read transformations. + * + * The PNG_USE_COMPILE_TIME_MASKS option causes generation of pre-computed + * bitmasks for use within the code, otherwise runtime generated masks are used. + * The default is compile time masks. + */ +#ifndef PNG_USE_COMPILE_TIME_MASKS +# define PNG_USE_COMPILE_TIME_MASKS 1 +#endif +PNG_INTERNAL_FUNCTION(void,png_combine_row,(png_const_structrp png_ptr, + png_bytep row, int display),PNG_EMPTY); + +#ifdef PNG_READ_INTERLACING_SUPPORTED +/* Expand an interlaced row: the 'row_info' describes the pass data that has + * been read in and must correspond to the pixels in 'row', the pixels are + * expanded (moved apart) in 'row' to match the final layout, when doing this + * the pixels are *replicated* to the intervening space. This is essential for + * the correct operation of png_combine_row, above. + */ +PNG_INTERNAL_FUNCTION(void,png_do_read_interlace,(png_row_infop row_info, + png_bytep row, int pass, png_uint_32 transformations),PNG_EMPTY); +#endif + +/* GRR TO DO (2.0 or whenever): simplify other internal calling interfaces */ + +#ifdef PNG_WRITE_INTERLACING_SUPPORTED +/* Grab pixels out of a row for an interlaced pass */ +PNG_INTERNAL_FUNCTION(void,png_do_write_interlace,(png_row_infop row_info, + png_bytep row, int pass),PNG_EMPTY); +#endif + +/* Unfilter a row: check the filter value before calling this, there is no point + * calling it for PNG_FILTER_VALUE_NONE. + */ +PNG_INTERNAL_FUNCTION(void,png_read_filter_row,(png_structrp pp, png_row_infop + row_info, png_bytep row, png_const_bytep prev_row, int filter),PNG_EMPTY); + +PNG_INTERNAL_FUNCTION(void,png_read_filter_row_up_neon,(png_row_infop row_info, + png_bytep row, png_const_bytep prev_row),PNG_EMPTY); +PNG_INTERNAL_FUNCTION(void,png_read_filter_row_sub3_neon,(png_row_infop + row_info, png_bytep row, png_const_bytep prev_row),PNG_EMPTY); +PNG_INTERNAL_FUNCTION(void,png_read_filter_row_sub4_neon,(png_row_infop + row_info, png_bytep row, png_const_bytep prev_row),PNG_EMPTY); +PNG_INTERNAL_FUNCTION(void,png_read_filter_row_avg3_neon,(png_row_infop + row_info, png_bytep row, png_const_bytep prev_row),PNG_EMPTY); +PNG_INTERNAL_FUNCTION(void,png_read_filter_row_avg4_neon,(png_row_infop + row_info, png_bytep row, png_const_bytep prev_row),PNG_EMPTY); +PNG_INTERNAL_FUNCTION(void,png_read_filter_row_paeth3_neon,(png_row_infop + row_info, png_bytep row, png_const_bytep prev_row),PNG_EMPTY); +PNG_INTERNAL_FUNCTION(void,png_read_filter_row_paeth4_neon,(png_row_infop + row_info, png_bytep row, png_const_bytep prev_row),PNG_EMPTY); + +/* Choose the best filter to use and filter the row data */ +PNG_INTERNAL_FUNCTION(void,png_write_find_filter,(png_structrp png_ptr, + png_row_infop row_info),PNG_EMPTY); + +#ifdef PNG_SEQUENTIAL_READ_SUPPORTED +PNG_INTERNAL_FUNCTION(void,png_read_IDAT_data,(png_structrp png_ptr, + png_bytep output, png_alloc_size_t avail_out),PNG_EMPTY); + /* Read 'avail_out' bytes of data from the IDAT stream. If the output buffer + * is NULL the function checks, instead, for the end of the stream. In this + * case a benign error will be issued if the stream end is not found or if + * extra data has to be consumed. + */ +PNG_INTERNAL_FUNCTION(void,png_read_finish_IDAT,(png_structrp png_ptr), + PNG_EMPTY); + /* This cleans up when the IDAT LZ stream does not end when the last image + * byte is read; there is still some pending input. + */ + +PNG_INTERNAL_FUNCTION(void,png_read_finish_row,(png_structrp png_ptr), + PNG_EMPTY); + /* Finish a row while reading, dealing with interlacing passes, etc. */ +#endif /* PNG_SEQUENTIAL_READ_SUPPORTED */ + +/* Initialize the row buffers, etc. */ +PNG_INTERNAL_FUNCTION(void,png_read_start_row,(png_structrp png_ptr),PNG_EMPTY); + +#ifdef PNG_READ_TRANSFORMS_SUPPORTED +/* Optional call to update the users info structure */ +PNG_INTERNAL_FUNCTION(void,png_read_transform_info,(png_structrp png_ptr, + png_inforp info_ptr),PNG_EMPTY); +#endif + +/* Shared transform functions, defined in pngtran.c */ +#if defined(PNG_WRITE_FILLER_SUPPORTED) || \ + defined(PNG_READ_STRIP_ALPHA_SUPPORTED) +PNG_INTERNAL_FUNCTION(void,png_do_strip_channel,(png_row_infop row_info, + png_bytep row, int at_start),PNG_EMPTY); +#endif + +#ifdef PNG_16BIT_SUPPORTED +#if defined(PNG_READ_SWAP_SUPPORTED) || defined(PNG_WRITE_SWAP_SUPPORTED) +PNG_INTERNAL_FUNCTION(void,png_do_swap,(png_row_infop row_info, + png_bytep row),PNG_EMPTY); +#endif +#endif + +#if defined(PNG_READ_PACKSWAP_SUPPORTED) || \ + defined(PNG_WRITE_PACKSWAP_SUPPORTED) +PNG_INTERNAL_FUNCTION(void,png_do_packswap,(png_row_infop row_info, + png_bytep row),PNG_EMPTY); +#endif + +#if defined(PNG_READ_INVERT_SUPPORTED) || defined(PNG_WRITE_INVERT_SUPPORTED) +PNG_INTERNAL_FUNCTION(void,png_do_invert,(png_row_infop row_info, + png_bytep row),PNG_EMPTY); +#endif + +#if defined(PNG_READ_BGR_SUPPORTED) || defined(PNG_WRITE_BGR_SUPPORTED) +PNG_INTERNAL_FUNCTION(void,png_do_bgr,(png_row_infop row_info, + png_bytep row),PNG_EMPTY); +#endif + +/* The following decodes the appropriate chunks, and does error correction, + * then calls the appropriate callback for the chunk if it is valid. + */ + +/* Decode the IHDR chunk */ +PNG_INTERNAL_FUNCTION(void,png_handle_IHDR,(png_structrp png_ptr, + png_inforp info_ptr, png_uint_32 length),PNG_EMPTY); +PNG_INTERNAL_FUNCTION(void,png_handle_PLTE,(png_structrp png_ptr, + png_inforp info_ptr, png_uint_32 length),PNG_EMPTY); +PNG_INTERNAL_FUNCTION(void,png_handle_IEND,(png_structrp png_ptr, + png_inforp info_ptr, png_uint_32 length),PNG_EMPTY); + +#ifdef PNG_READ_bKGD_SUPPORTED +PNG_INTERNAL_FUNCTION(void,png_handle_bKGD,(png_structrp png_ptr, + png_inforp info_ptr, png_uint_32 length),PNG_EMPTY); +#endif + +#ifdef PNG_READ_cHRM_SUPPORTED +PNG_INTERNAL_FUNCTION(void,png_handle_cHRM,(png_structrp png_ptr, + png_inforp info_ptr, png_uint_32 length),PNG_EMPTY); +#endif + +#ifdef PNG_READ_gAMA_SUPPORTED +PNG_INTERNAL_FUNCTION(void,png_handle_gAMA,(png_structrp png_ptr, + png_inforp info_ptr, png_uint_32 length),PNG_EMPTY); +#endif + +#ifdef PNG_READ_hIST_SUPPORTED +PNG_INTERNAL_FUNCTION(void,png_handle_hIST,(png_structrp png_ptr, + png_inforp info_ptr, png_uint_32 length),PNG_EMPTY); +#endif + +#ifdef PNG_READ_iCCP_SUPPORTED +PNG_INTERNAL_FUNCTION(void,png_handle_iCCP,(png_structrp png_ptr, + png_inforp info_ptr, png_uint_32 length),PNG_EMPTY); +#endif /* PNG_READ_iCCP_SUPPORTED */ + +#ifdef PNG_READ_iTXt_SUPPORTED +PNG_INTERNAL_FUNCTION(void,png_handle_iTXt,(png_structrp png_ptr, + png_inforp info_ptr, png_uint_32 length),PNG_EMPTY); +#endif + +#ifdef PNG_READ_oFFs_SUPPORTED +PNG_INTERNAL_FUNCTION(void,png_handle_oFFs,(png_structrp png_ptr, + png_inforp info_ptr, png_uint_32 length),PNG_EMPTY); +#endif + +#ifdef PNG_READ_pCAL_SUPPORTED +PNG_INTERNAL_FUNCTION(void,png_handle_pCAL,(png_structrp png_ptr, + png_inforp info_ptr, png_uint_32 length),PNG_EMPTY); +#endif + +#ifdef PNG_READ_pHYs_SUPPORTED +PNG_INTERNAL_FUNCTION(void,png_handle_pHYs,(png_structrp png_ptr, + png_inforp info_ptr, png_uint_32 length),PNG_EMPTY); +#endif + +#ifdef PNG_READ_sBIT_SUPPORTED +PNG_INTERNAL_FUNCTION(void,png_handle_sBIT,(png_structrp png_ptr, + png_inforp info_ptr, png_uint_32 length),PNG_EMPTY); +#endif + +#ifdef PNG_READ_sCAL_SUPPORTED +PNG_INTERNAL_FUNCTION(void,png_handle_sCAL,(png_structrp png_ptr, + png_inforp info_ptr, png_uint_32 length),PNG_EMPTY); +#endif + +#ifdef PNG_READ_sPLT_SUPPORTED +PNG_INTERNAL_FUNCTION(void,png_handle_sPLT,(png_structrp png_ptr, + png_inforp info_ptr, png_uint_32 length),PNG_EMPTY); +#endif /* PNG_READ_sPLT_SUPPORTED */ + +#ifdef PNG_READ_sRGB_SUPPORTED +PNG_INTERNAL_FUNCTION(void,png_handle_sRGB,(png_structrp png_ptr, + png_inforp info_ptr, png_uint_32 length),PNG_EMPTY); +#endif + +#ifdef PNG_READ_tEXt_SUPPORTED +PNG_INTERNAL_FUNCTION(void,png_handle_tEXt,(png_structrp png_ptr, + png_inforp info_ptr, png_uint_32 length),PNG_EMPTY); +#endif + +#ifdef PNG_READ_tIME_SUPPORTED +PNG_INTERNAL_FUNCTION(void,png_handle_tIME,(png_structrp png_ptr, + png_inforp info_ptr, png_uint_32 length),PNG_EMPTY); +#endif + +#ifdef PNG_READ_tRNS_SUPPORTED +PNG_INTERNAL_FUNCTION(void,png_handle_tRNS,(png_structrp png_ptr, + png_inforp info_ptr, png_uint_32 length),PNG_EMPTY); +#endif + +#ifdef PNG_READ_zTXt_SUPPORTED +PNG_INTERNAL_FUNCTION(void,png_handle_zTXt,(png_structrp png_ptr, + png_inforp info_ptr, png_uint_32 length),PNG_EMPTY); +#endif + +PNG_INTERNAL_FUNCTION(void,png_check_chunk_name,(png_structrp png_ptr, + png_uint_32 chunk_name),PNG_EMPTY); + +PNG_INTERNAL_FUNCTION(void,png_handle_unknown,(png_structrp png_ptr, + png_inforp info_ptr, png_uint_32 length, int keep),PNG_EMPTY); + /* This is the function that gets called for unknown chunks. The 'keep' + * argument is either non-zero for a known chunk that has been set to be + * handled as unknown or zero for an unknown chunk. By default the function + * just skips the chunk or errors out if it is critical. + */ + +#if defined(PNG_READ_UNKNOWN_CHUNKS_SUPPORTED) ||\ + defined(PNG_HANDLE_AS_UNKNOWN_SUPPORTED) +PNG_INTERNAL_FUNCTION(int,png_chunk_unknown_handling, + (png_const_structrp png_ptr, png_uint_32 chunk_name),PNG_EMPTY); + /* Exactly as the API png_handle_as_unknown() except that the argument is a + * 32-bit chunk name, not a string. + */ +#endif /* READ_UNKNOWN_CHUNKS || HANDLE_AS_UNKNOWN */ + +/* Handle the transformations for reading and writing */ +#ifdef PNG_READ_TRANSFORMS_SUPPORTED +PNG_INTERNAL_FUNCTION(void,png_do_read_transformations,(png_structrp png_ptr, + png_row_infop row_info),PNG_EMPTY); +#endif +#ifdef PNG_WRITE_TRANSFORMS_SUPPORTED +PNG_INTERNAL_FUNCTION(void,png_do_write_transformations,(png_structrp png_ptr, + png_row_infop row_info),PNG_EMPTY); +#endif + +#ifdef PNG_READ_TRANSFORMS_SUPPORTED +PNG_INTERNAL_FUNCTION(void,png_init_read_transformations,(png_structrp png_ptr), + PNG_EMPTY); +#endif + +#ifdef PNG_PROGRESSIVE_READ_SUPPORTED +PNG_INTERNAL_FUNCTION(void,png_push_read_chunk,(png_structrp png_ptr, + png_inforp info_ptr),PNG_EMPTY); +PNG_INTERNAL_FUNCTION(void,png_push_read_sig,(png_structrp png_ptr, + png_inforp info_ptr),PNG_EMPTY); +PNG_INTERNAL_FUNCTION(void,png_push_check_crc,(png_structrp png_ptr),PNG_EMPTY); +PNG_INTERNAL_FUNCTION(void,png_push_crc_skip,(png_structrp png_ptr, + png_uint_32 length),PNG_EMPTY); +PNG_INTERNAL_FUNCTION(void,png_push_crc_finish,(png_structrp png_ptr), + PNG_EMPTY); +PNG_INTERNAL_FUNCTION(void,png_push_save_buffer,(png_structrp png_ptr), + PNG_EMPTY); +PNG_INTERNAL_FUNCTION(void,png_push_restore_buffer,(png_structrp png_ptr, + png_bytep buffer, png_size_t buffer_length),PNG_EMPTY); +PNG_INTERNAL_FUNCTION(void,png_push_read_IDAT,(png_structrp png_ptr),PNG_EMPTY); +PNG_INTERNAL_FUNCTION(void,png_process_IDAT_data,(png_structrp png_ptr, + png_bytep buffer, png_size_t buffer_length),PNG_EMPTY); +PNG_INTERNAL_FUNCTION(void,png_push_process_row,(png_structrp png_ptr), + PNG_EMPTY); +PNG_INTERNAL_FUNCTION(void,png_push_handle_unknown,(png_structrp png_ptr, + png_inforp info_ptr, png_uint_32 length),PNG_EMPTY); +PNG_INTERNAL_FUNCTION(void,png_push_have_info,(png_structrp png_ptr, + png_inforp info_ptr),PNG_EMPTY); +PNG_INTERNAL_FUNCTION(void,png_push_have_end,(png_structrp png_ptr, + png_inforp info_ptr),PNG_EMPTY); +PNG_INTERNAL_FUNCTION(void,png_push_have_row,(png_structrp png_ptr, + png_bytep row),PNG_EMPTY); +PNG_INTERNAL_FUNCTION(void,png_push_read_end,(png_structrp png_ptr, + png_inforp info_ptr),PNG_EMPTY); +PNG_INTERNAL_FUNCTION(void,png_process_some_data,(png_structrp png_ptr, + png_inforp info_ptr),PNG_EMPTY); +PNG_INTERNAL_FUNCTION(void,png_read_push_finish_row,(png_structrp png_ptr), + PNG_EMPTY); +# ifdef PNG_READ_tEXt_SUPPORTED +PNG_INTERNAL_FUNCTION(void,png_push_handle_tEXt,(png_structrp png_ptr, + png_inforp info_ptr, png_uint_32 length),PNG_EMPTY); +PNG_INTERNAL_FUNCTION(void,png_push_read_tEXt,(png_structrp png_ptr, + png_inforp info_ptr),PNG_EMPTY); +# endif +# ifdef PNG_READ_zTXt_SUPPORTED +PNG_INTERNAL_FUNCTION(void,png_push_handle_zTXt,(png_structrp png_ptr, + png_inforp info_ptr, png_uint_32 length),PNG_EMPTY); +PNG_INTERNAL_FUNCTION(void,png_push_read_zTXt,(png_structrp png_ptr, + png_inforp info_ptr),PNG_EMPTY); +# endif +# ifdef PNG_READ_iTXt_SUPPORTED +PNG_INTERNAL_FUNCTION(void,png_push_handle_iTXt,(png_structrp png_ptr, + png_inforp info_ptr, png_uint_32 length),PNG_EMPTY); +PNG_INTERNAL_FUNCTION(void,png_push_read_iTXt,(png_structrp png_ptr, + png_inforp info_ptr),PNG_EMPTY); +# endif + +#endif /* PNG_PROGRESSIVE_READ_SUPPORTED */ + +/* Added at libpng version 1.6.0 */ +#ifdef PNG_GAMMA_SUPPORTED +PNG_INTERNAL_FUNCTION(void,png_colorspace_set_gamma,(png_const_structrp png_ptr, + png_colorspacerp colorspace, png_fixed_point gAMA), PNG_EMPTY); + /* Set the colorspace gamma with a value provided by the application or by + * the gAMA chunk on read. The value will override anything set by an ICC + * profile. + */ + +PNG_INTERNAL_FUNCTION(void,png_colorspace_sync_info,(png_const_structrp png_ptr, + png_inforp info_ptr), PNG_EMPTY); + /* Synchronize the info 'valid' flags with the colorspace */ + +PNG_INTERNAL_FUNCTION(void,png_colorspace_sync,(png_const_structrp png_ptr, + png_inforp info_ptr), PNG_EMPTY); + /* Copy the png_struct colorspace to the info_struct and call the above to + * synchronize the flags. Checks for NULL info_ptr and does nothing. + */ +#endif + +/* Added at libpng version 1.4.0 */ +#ifdef PNG_COLORSPACE_SUPPORTED +/* These internal functions are for maintaining the colorspace structure within + * a png_info or png_struct (or, indeed, both). + */ +PNG_INTERNAL_FUNCTION(int,png_colorspace_set_chromaticities, + (png_const_structrp png_ptr, png_colorspacerp colorspace, const png_xy *xy, + int preferred), PNG_EMPTY); + +PNG_INTERNAL_FUNCTION(int,png_colorspace_set_endpoints, + (png_const_structrp png_ptr, png_colorspacerp colorspace, const png_XYZ *XYZ, + int preferred), PNG_EMPTY); + +#ifdef PNG_sRGB_SUPPORTED +PNG_INTERNAL_FUNCTION(int,png_colorspace_set_sRGB,(png_const_structrp png_ptr, + png_colorspacerp colorspace, int intent), PNG_EMPTY); + /* This does set the colorspace gAMA and cHRM values too, but doesn't set the + * flags to write them, if it returns false there was a problem and an error + * message has already been output (but the colorspace may still need to be + * synced to record the invalid flag). + */ +#endif /* sRGB */ + +#ifdef PNG_iCCP_SUPPORTED +PNG_INTERNAL_FUNCTION(int,png_colorspace_set_ICC,(png_const_structrp png_ptr, + png_colorspacerp colorspace, png_const_charp name, + png_uint_32 profile_length, png_const_bytep profile, int color_type), + PNG_EMPTY); + /* The 'name' is used for information only */ + +/* Routines for checking parts of an ICC profile. */ +PNG_INTERNAL_FUNCTION(int,png_icc_check_length,(png_const_structrp png_ptr, + png_colorspacerp colorspace, png_const_charp name, + png_uint_32 profile_length), PNG_EMPTY); +PNG_INTERNAL_FUNCTION(int,png_icc_check_header,(png_const_structrp png_ptr, + png_colorspacerp colorspace, png_const_charp name, + png_uint_32 profile_length, + png_const_bytep profile /* first 132 bytes only */, int color_type), + PNG_EMPTY); +PNG_INTERNAL_FUNCTION(int,png_icc_check_tag_table,(png_const_structrp png_ptr, + png_colorspacerp colorspace, png_const_charp name, + png_uint_32 profile_length, + png_const_bytep profile /* header plus whole tag table */), PNG_EMPTY); +#ifdef PNG_sRGB_SUPPORTED +PNG_INTERNAL_FUNCTION(void,png_icc_set_sRGB,( + png_const_structrp png_ptr, png_colorspacerp colorspace, + png_const_bytep profile, uLong adler), PNG_EMPTY); + /* 'adler' is the Adler32 checksum of the uncompressed profile data. It may + * be zero to indicate that it is not available. It is used, if provided, + * as a fast check on the profile when checking to see if it is sRGB. + */ +#endif +#endif /* iCCP */ + +#ifdef PNG_READ_RGB_TO_GRAY_SUPPORTED +PNG_INTERNAL_FUNCTION(void,png_colorspace_set_rgb_coefficients, + (png_structrp png_ptr), PNG_EMPTY); + /* Set the rgb_to_gray coefficients from the colorspace Y values */ +#endif /* READ_RGB_TO_GRAY */ +#endif /* COLORSPACE */ + +/* Added at libpng version 1.4.0 */ +PNG_INTERNAL_FUNCTION(void,png_check_IHDR,(png_const_structrp png_ptr, + png_uint_32 width, png_uint_32 height, int bit_depth, + int color_type, int interlace_type, int compression_type, + int filter_type),PNG_EMPTY); + +/* Added at libpng version 1.5.10 */ +#if defined(PNG_READ_CHECK_FOR_INVALID_INDEX_SUPPORTED) || \ + defined(PNG_WRITE_CHECK_FOR_INVALID_INDEX_SUPPORTED) +PNG_INTERNAL_FUNCTION(void,png_do_check_palette_indexes, + (png_structrp png_ptr, png_row_infop row_info),PNG_EMPTY); +#endif + +#if defined(PNG_FLOATING_POINT_SUPPORTED) && defined(PNG_ERROR_TEXT_SUPPORTED) +PNG_INTERNAL_FUNCTION(void,png_fixed_error,(png_const_structrp png_ptr, + png_const_charp name),PNG_NORETURN); +#endif + +/* Puts 'string' into 'buffer' at buffer[pos], taking care never to overwrite + * the end. Always leaves the buffer nul terminated. Never errors out (and + * there is no error code.) + */ +PNG_INTERNAL_FUNCTION(size_t,png_safecat,(png_charp buffer, size_t bufsize, + size_t pos, png_const_charp string),PNG_EMPTY); + +/* Various internal functions to handle formatted warning messages, currently + * only implemented for warnings. + */ +#if defined(PNG_WARNINGS_SUPPORTED) || defined(PNG_TIME_RFC1123_SUPPORTED) +/* Utility to dump an unsigned value into a buffer, given a start pointer and + * and end pointer (which should point just *beyond* the end of the buffer!) + * Returns the pointer to the start of the formatted string. This utility only + * does unsigned values. + */ +PNG_INTERNAL_FUNCTION(png_charp,png_format_number,(png_const_charp start, + png_charp end, int format, png_alloc_size_t number),PNG_EMPTY); + +/* Convenience macro that takes an array: */ +#define PNG_FORMAT_NUMBER(buffer,format,number) \ + png_format_number(buffer, buffer + (sizeof buffer), format, number) + +/* Suggested size for a number buffer (enough for 64 bits and a sign!) */ +#define PNG_NUMBER_BUFFER_SIZE 24 + +/* These are the integer formats currently supported, the name is formed from + * the standard printf(3) format string. + */ +#define PNG_NUMBER_FORMAT_u 1 /* chose unsigned API! */ +#define PNG_NUMBER_FORMAT_02u 2 +#define PNG_NUMBER_FORMAT_d 1 /* chose signed API! */ +#define PNG_NUMBER_FORMAT_02d 2 +#define PNG_NUMBER_FORMAT_x 3 +#define PNG_NUMBER_FORMAT_02x 4 +#define PNG_NUMBER_FORMAT_fixed 5 /* choose the signed API */ +#endif + +#ifdef PNG_WARNINGS_SUPPORTED +/* New defines and members adding in libpng-1.5.4 */ +# define PNG_WARNING_PARAMETER_SIZE 32 +# define PNG_WARNING_PARAMETER_COUNT 8 /* Maximum 9; see pngerror.c */ + +/* An l-value of this type has to be passed to the APIs below to cache the + * values of the parameters to a formatted warning message. + */ +typedef char png_warning_parameters[PNG_WARNING_PARAMETER_COUNT][ + PNG_WARNING_PARAMETER_SIZE]; + +PNG_INTERNAL_FUNCTION(void,png_warning_parameter,(png_warning_parameters p, + int number, png_const_charp string),PNG_EMPTY); + /* Parameters are limited in size to PNG_WARNING_PARAMETER_SIZE characters, + * including the trailing '\0'. + */ +PNG_INTERNAL_FUNCTION(void,png_warning_parameter_unsigned, + (png_warning_parameters p, int number, int format, png_alloc_size_t value), + PNG_EMPTY); + /* Use png_alloc_size_t because it is an unsigned type as big as any we + * need to output. Use the following for a signed value. + */ +PNG_INTERNAL_FUNCTION(void,png_warning_parameter_signed, + (png_warning_parameters p, int number, int format, png_int_32 value), + PNG_EMPTY); + +PNG_INTERNAL_FUNCTION(void,png_formatted_warning,(png_const_structrp png_ptr, + png_warning_parameters p, png_const_charp message),PNG_EMPTY); + /* 'message' follows the X/Open approach of using @1, @2 to insert + * parameters previously supplied using the above functions. Errors in + * specifying the parameters will simply result in garbage substitutions. + */ +#endif + +#ifdef PNG_BENIGN_ERRORS_SUPPORTED +/* Application errors (new in 1.6); use these functions (declared below) for + * errors in the parameters or order of API function calls on read. The + * 'warning' should be used for an error that can be handled completely; the + * 'error' for one which can be handled safely but which may lose application + * information or settings. + * + * By default these both result in a png_error call prior to release, while in a + * released version the 'warning' is just a warning. However if the application + * explicitly disables benign errors (explicitly permitting the code to lose + * information) they both turn into warnings. + * + * If benign errors aren't supported they end up as the corresponding base call + * (png_warning or png_error.) + */ +PNG_INTERNAL_FUNCTION(void,png_app_warning,(png_const_structrp png_ptr, + png_const_charp message),PNG_EMPTY); + /* The application provided invalid parameters to an API function or called + * an API function at the wrong time, libpng can completely recover. + */ + +PNG_INTERNAL_FUNCTION(void,png_app_error,(png_const_structrp png_ptr, + png_const_charp message),PNG_EMPTY); + /* As above but libpng will ignore the call, or attempt some other partial + * recovery from the error. + */ +#else +# define png_app_warning(pp,s) png_warning(pp,s) +# define png_app_error(pp,s) png_error(pp,s) +#endif + +PNG_INTERNAL_FUNCTION(void,png_chunk_report,(png_const_structrp png_ptr, + png_const_charp message, int error),PNG_EMPTY); + /* Report a recoverable issue in chunk data. On read this is used to report + * a problem found while reading a particular chunk and the + * png_chunk_benign_error or png_chunk_warning function is used as + * appropriate. On write this is used to report an error that comes from + * data set via an application call to a png_set_ API and png_app_error or + * png_app_warning is used as appropriate. + * + * The 'error' parameter must have one of the following values: + */ +#define PNG_CHUNK_WARNING 0 /* never an error */ +#define PNG_CHUNK_WRITE_ERROR 1 /* an error only on write */ +#define PNG_CHUNK_ERROR 2 /* always an error */ + +/* ASCII to FP interfaces, currently only implemented if sCAL + * support is required. + */ +#if defined(PNG_sCAL_SUPPORTED) +/* MAX_DIGITS is actually the maximum number of characters in an sCAL + * width or height, derived from the precision (number of significant + * digits - a build time settable option) and assumptions about the + * maximum ridiculous exponent. + */ +#define PNG_sCAL_MAX_DIGITS (PNG_sCAL_PRECISION+1/*.*/+1/*E*/+10/*exponent*/) + +#ifdef PNG_FLOATING_POINT_SUPPORTED +PNG_INTERNAL_FUNCTION(void,png_ascii_from_fp,(png_const_structrp png_ptr, + png_charp ascii, png_size_t size, double fp, unsigned int precision), + PNG_EMPTY); +#endif /* FLOATING_POINT */ + +#ifdef PNG_FIXED_POINT_SUPPORTED +PNG_INTERNAL_FUNCTION(void,png_ascii_from_fixed,(png_const_structrp png_ptr, + png_charp ascii, png_size_t size, png_fixed_point fp),PNG_EMPTY); +#endif /* FIXED_POINT */ +#endif /* sCAL */ + +#if defined(PNG_sCAL_SUPPORTED) || defined(PNG_pCAL_SUPPORTED) +/* An internal API to validate the format of a floating point number. + * The result is the index of the next character. If the number is + * not valid it will be the index of a character in the supposed number. + * + * The format of a number is defined in the PNG extensions specification + * and this API is strictly conformant to that spec, not anyone elses! + * + * The format as a regular expression is: + * + * [+-]?[0-9]+.?([Ee][+-]?[0-9]+)? + * + * or: + * + * [+-]?.[0-9]+(.[0-9]+)?([Ee][+-]?[0-9]+)? + * + * The complexity is that either integer or fraction must be present and the + * fraction is permitted to have no digits only if the integer is present. + * + * NOTE: The dangling E problem. + * There is a PNG valid floating point number in the following: + * + * PNG floating point numbers are not greedy. + * + * Working this out requires *TWO* character lookahead (because of the + * sign), the parser does not do this - it will fail at the 'r' - this + * doesn't matter for PNG sCAL chunk values, but it requires more care + * if the value were ever to be embedded in something more complex. Use + * ANSI-C strtod if you need the lookahead. + */ +/* State table for the parser. */ +#define PNG_FP_INTEGER 0 /* before or in integer */ +#define PNG_FP_FRACTION 1 /* before or in fraction */ +#define PNG_FP_EXPONENT 2 /* before or in exponent */ +#define PNG_FP_STATE 3 /* mask for the above */ +#define PNG_FP_SAW_SIGN 4 /* Saw +/- in current state */ +#define PNG_FP_SAW_DIGIT 8 /* Saw a digit in current state */ +#define PNG_FP_SAW_DOT 16 /* Saw a dot in current state */ +#define PNG_FP_SAW_E 32 /* Saw an E (or e) in current state */ +#define PNG_FP_SAW_ANY 60 /* Saw any of the above 4 */ + +/* These three values don't affect the parser. They are set but not used. + */ +#define PNG_FP_WAS_VALID 64 /* Preceding substring is a valid fp number */ +#define PNG_FP_NEGATIVE 128 /* A negative number, including "-0" */ +#define PNG_FP_NONZERO 256 /* A non-zero value */ +#define PNG_FP_STICKY 448 /* The above three flags */ + +/* This is available for the caller to store in 'state' if required. Do not + * call the parser after setting it (the parser sometimes clears it.) + */ +#define PNG_FP_INVALID 512 /* Available for callers as a distinct value */ + +/* Result codes for the parser (boolean - true meants ok, false means + * not ok yet.) + */ +#define PNG_FP_MAYBE 0 /* The number may be valid in the future */ +#define PNG_FP_OK 1 /* The number is valid */ + +/* Tests on the sticky non-zero and negative flags. To pass these checks + * the state must also indicate that the whole number is valid - this is + * achieved by testing PNG_FP_SAW_DIGIT (see the implementation for why this + * is equivalent to PNG_FP_OK above.) + */ +#define PNG_FP_NZ_MASK (PNG_FP_SAW_DIGIT | PNG_FP_NEGATIVE | PNG_FP_NONZERO) + /* NZ_MASK: the string is valid and a non-zero negative value */ +#define PNG_FP_Z_MASK (PNG_FP_SAW_DIGIT | PNG_FP_NONZERO) + /* Z MASK: the string is valid and a non-zero value. */ + /* PNG_FP_SAW_DIGIT: the string is valid. */ +#define PNG_FP_IS_ZERO(state) (((state) & PNG_FP_Z_MASK) == PNG_FP_SAW_DIGIT) +#define PNG_FP_IS_POSITIVE(state) (((state) & PNG_FP_NZ_MASK) == PNG_FP_Z_MASK) +#define PNG_FP_IS_NEGATIVE(state) (((state) & PNG_FP_NZ_MASK) == PNG_FP_NZ_MASK) + +/* The actual parser. This can be called repeatedly. It updates + * the index into the string and the state variable (which must + * be initialized to 0). It returns a result code, as above. There + * is no point calling the parser any more if it fails to advance to + * the end of the string - it is stuck on an invalid character (or + * terminated by '\0'). + * + * Note that the pointer will consume an E or even an E+ and then leave + * a 'maybe' state even though a preceding integer.fraction is valid. + * The PNG_FP_WAS_VALID flag indicates that a preceding substring was + * a valid number. It's possible to recover from this by calling + * the parser again (from the start, with state 0) but with a string + * that omits the last character (i.e. set the size to the index of + * the problem character.) This has not been tested within libpng. + */ +PNG_INTERNAL_FUNCTION(int,png_check_fp_number,(png_const_charp string, + png_size_t size, int *statep, png_size_tp whereami),PNG_EMPTY); + +/* This is the same but it checks a complete string and returns true + * only if it just contains a floating point number. As of 1.5.4 this + * function also returns the state at the end of parsing the number if + * it was valid (otherwise it returns 0.) This can be used for testing + * for negative or zero values using the sticky flag. + */ +PNG_INTERNAL_FUNCTION(int,png_check_fp_string,(png_const_charp string, + png_size_t size),PNG_EMPTY); +#endif /* pCAL || sCAL */ + +#if defined(PNG_GAMMA_SUPPORTED) ||\ + defined(PNG_INCH_CONVERSIONS_SUPPORTED) || defined(PNG_READ_pHYs_SUPPORTED) +/* Added at libpng version 1.5.0 */ +/* This is a utility to provide a*times/div (rounded) and indicate + * if there is an overflow. The result is a boolean - false (0) + * for overflow, true (1) if no overflow, in which case *res + * holds the result. + */ +PNG_INTERNAL_FUNCTION(int,png_muldiv,(png_fixed_point_p res, png_fixed_point a, + png_int_32 multiplied_by, png_int_32 divided_by),PNG_EMPTY); +#endif + +#if defined(PNG_READ_GAMMA_SUPPORTED) || defined(PNG_INCH_CONVERSIONS_SUPPORTED) +/* Same deal, but issue a warning on overflow and return 0. */ +PNG_INTERNAL_FUNCTION(png_fixed_point,png_muldiv_warn, + (png_const_structrp png_ptr, png_fixed_point a, png_int_32 multiplied_by, + png_int_32 divided_by),PNG_EMPTY); +#endif + +#ifdef PNG_GAMMA_SUPPORTED +/* Calculate a reciprocal - used for gamma values. This returns + * 0 if the argument is 0 in order to maintain an undefined value; + * there are no warnings. + */ +PNG_INTERNAL_FUNCTION(png_fixed_point,png_reciprocal,(png_fixed_point a), + PNG_EMPTY); + +#ifdef PNG_READ_GAMMA_SUPPORTED +/* The same but gives a reciprocal of the product of two fixed point + * values. Accuracy is suitable for gamma calculations but this is + * not exact - use png_muldiv for that. Only required at present on read. + */ +PNG_INTERNAL_FUNCTION(png_fixed_point,png_reciprocal2,(png_fixed_point a, + png_fixed_point b),PNG_EMPTY); +#endif + +/* Return true if the gamma value is significantly different from 1.0 */ +PNG_INTERNAL_FUNCTION(int,png_gamma_significant,(png_fixed_point gamma_value), + PNG_EMPTY); +#endif + +#ifdef PNG_READ_GAMMA_SUPPORTED +/* Internal fixed point gamma correction. These APIs are called as + * required to convert single values - they don't need to be fast, + * they are not used when processing image pixel values. + * + * While the input is an 'unsigned' value it must actually be the + * correct bit value - 0..255 or 0..65535 as required. + */ +PNG_INTERNAL_FUNCTION(png_uint_16,png_gamma_correct,(png_structrp png_ptr, + unsigned int value, png_fixed_point gamma_value),PNG_EMPTY); +PNG_INTERNAL_FUNCTION(png_uint_16,png_gamma_16bit_correct,(unsigned int value, + png_fixed_point gamma_value),PNG_EMPTY); +PNG_INTERNAL_FUNCTION(png_byte,png_gamma_8bit_correct,(unsigned int value, + png_fixed_point gamma_value),PNG_EMPTY); +PNG_INTERNAL_FUNCTION(void,png_destroy_gamma_table,(png_structrp png_ptr), + PNG_EMPTY); +PNG_INTERNAL_FUNCTION(void,png_build_gamma_table,(png_structrp png_ptr, + int bit_depth),PNG_EMPTY); +#endif + +/* SIMPLIFIED READ/WRITE SUPPORT */ +#if defined(PNG_SIMPLIFIED_READ_SUPPORTED) ||\ + defined(PNG_SIMPLIFIED_WRITE_SUPPORTED) +/* The internal structure that png_image::opaque points to. */ +typedef struct png_control +{ + png_structp png_ptr; + png_infop info_ptr; + png_voidp error_buf; /* Always a jmp_buf at present. */ + + png_const_bytep memory; /* Memory buffer. */ + png_size_t size; /* Size of the memory buffer. */ + + unsigned int for_write :1; /* Otherwise it is a read structure */ + unsigned int owned_file :1; /* We own the file in io_ptr */ +} png_control; + +/* Return the pointer to the jmp_buf from a png_control: necessary because C + * does not reveal the type of the elements of jmp_buf. + */ +#ifdef __cplusplus +# define png_control_jmp_buf(pc) (((jmp_buf*)((pc)->error_buf))[0]) +#else +# define png_control_jmp_buf(pc) ((pc)->error_buf) +#endif + +/* Utility to safely execute a piece of libpng code catching and logging any + * errors that might occur. Returns true on success, false on failure (either + * of the function or as a result of a png_error.) + */ +PNG_INTERNAL_CALLBACK(void,png_safe_error,(png_structp png_ptr, + png_const_charp error_message),PNG_NORETURN); + +#ifdef PNG_WARNINGS_SUPPORTED +PNG_INTERNAL_CALLBACK(void,png_safe_warning,(png_structp png_ptr, + png_const_charp warning_message),PNG_EMPTY); +#else +# define png_safe_warning 0/*dummy argument*/ +#endif + +PNG_INTERNAL_FUNCTION(int,png_safe_execute,(png_imagep image, + int (*function)(png_voidp), png_voidp arg),PNG_EMPTY); + +/* Utility to log an error; this also cleans up the png_image; the function + * always returns 0 (false). + */ +PNG_INTERNAL_FUNCTION(int,png_image_error,(png_imagep image, + png_const_charp error_message),PNG_EMPTY); + +#ifndef PNG_SIMPLIFIED_READ_SUPPORTED +/* png_image_free is used by the write code but not exported */ +PNG_INTERNAL_FUNCTION(void, png_image_free, (png_imagep image), PNG_EMPTY); +#endif /* !SIMPLIFIED_READ */ + +#endif /* SIMPLIFIED READ/WRITE */ + +/* These are initialization functions for hardware specific PNG filter + * optimizations; list these here then select the appropriate one at compile + * time using the macro PNG_FILTER_OPTIMIZATIONS. If the macro is not defined + * the generic code is used. + */ +#ifdef PNG_FILTER_OPTIMIZATIONS +PNG_INTERNAL_FUNCTION(void, PNG_FILTER_OPTIMIZATIONS, (png_structp png_ptr, + unsigned int bpp), PNG_EMPTY); + /* Just declare the optimization that will be used */ +#else + /* List *all* the possible optimizations here - this branch is required if + * the builder of libpng passes the definition of PNG_FILTER_OPTIMIZATIONS in + * CFLAGS in place of CPPFLAGS *and* uses symbol prefixing. + */ +PNG_INTERNAL_FUNCTION(void, png_init_filter_functions_neon, + (png_structp png_ptr, unsigned int bpp), PNG_EMPTY); +#endif + +/* Maintainer: Put new private prototypes here ^ */ + +#include "pngdebug.h" + +#ifdef __cplusplus +} +#endif + +#endif /* PNG_VERSION_INFO_ONLY */ +#endif /* PNGPRIV_H */ diff --git a/png/pngread.c b/png/pngread.c new file mode 100644 index 0000000..4bf2021 --- /dev/null +++ b/png/pngread.c @@ -0,0 +1,4098 @@ + +/* pngread.c - read a PNG file + * + * Last changed in libpng 1.6.11 [June 12, 2014] + * Copyright (c) 1998-2014 Glenn Randers-Pehrson + * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) + * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) + * + * This code is released under the libpng license. + * For conditions of distribution and use, see the disclaimer + * and license in png.h + * + * This file contains routines that an application calls directly to + * read a PNG file or stream. + */ + +#include "pngpriv.h" +#if defined(PNG_SIMPLIFIED_READ_SUPPORTED) && defined(PNG_STDIO_SUPPORTED) +# include +#endif + +#ifdef PNG_READ_SUPPORTED + +/* Create a PNG structure for reading, and allocate any memory needed. */ +PNG_FUNCTION(png_structp,PNGAPI +png_create_read_struct,(png_const_charp user_png_ver, png_voidp error_ptr, + png_error_ptr error_fn, png_error_ptr warn_fn),PNG_ALLOCATED) +{ +#ifndef PNG_USER_MEM_SUPPORTED + png_structp png_ptr = png_create_png_struct(user_png_ver, error_ptr, + error_fn, warn_fn, NULL, NULL, NULL); +#else + return png_create_read_struct_2(user_png_ver, error_ptr, error_fn, + warn_fn, NULL, NULL, NULL); +} + +/* Alternate create PNG structure for reading, and allocate any memory + * needed. + */ +PNG_FUNCTION(png_structp,PNGAPI +png_create_read_struct_2,(png_const_charp user_png_ver, png_voidp error_ptr, + png_error_ptr error_fn, png_error_ptr warn_fn, png_voidp mem_ptr, + png_malloc_ptr malloc_fn, png_free_ptr free_fn),PNG_ALLOCATED) +{ + png_structp png_ptr = png_create_png_struct(user_png_ver, error_ptr, + error_fn, warn_fn, mem_ptr, malloc_fn, free_fn); +#endif /* PNG_USER_MEM_SUPPORTED */ + + if (png_ptr != NULL) + { + png_ptr->mode = PNG_IS_READ_STRUCT; + + /* Added in libpng-1.6.0; this can be used to detect a read structure if + * required (it will be zero in a write structure.) + */ +# ifdef PNG_SEQUENTIAL_READ_SUPPORTED + png_ptr->IDAT_read_size = PNG_IDAT_READ_SIZE; +# endif + +# ifdef PNG_BENIGN_READ_ERRORS_SUPPORTED + png_ptr->flags |= PNG_FLAG_BENIGN_ERRORS_WARN; + + /* In stable builds only warn if an application error can be completely + * handled. + */ +# if PNG_LIBPNG_BUILD_BASE_TYPE >= PNG_LIBPNG_BUILD_RC + png_ptr->flags |= PNG_FLAG_APP_WARNINGS_WARN; +# endif +# endif + + /* TODO: delay this, it can be done in png_init_io (if the app doesn't + * do it itself) avoiding setting the default function if it is not + * required. + */ + png_set_read_fn(png_ptr, NULL, NULL); + } + + return png_ptr; +} + + +#ifdef PNG_SEQUENTIAL_READ_SUPPORTED +/* Read the information before the actual image data. This has been + * changed in v0.90 to allow reading a file that already has the magic + * bytes read from the stream. You can tell libpng how many bytes have + * been read from the beginning of the stream (up to the maximum of 8) + * via png_set_sig_bytes(), and we will only check the remaining bytes + * here. The application can then have access to the signature bytes we + * read if it is determined that this isn't a valid PNG file. + */ +void PNGAPI +png_read_info(png_structrp png_ptr, png_inforp info_ptr) +{ +#ifdef PNG_HANDLE_AS_UNKNOWN_SUPPORTED + int keep; +#endif + + png_debug(1, "in png_read_info"); + + if (png_ptr == NULL || info_ptr == NULL) + return; + + /* Read and check the PNG file signature. */ + png_read_sig(png_ptr, info_ptr); + + for (;;) + { + png_uint_32 length = png_read_chunk_header(png_ptr); + png_uint_32 chunk_name = png_ptr->chunk_name; + + /* IDAT logic needs to happen here to simplify getting the two flags + * right. + */ + if (chunk_name == png_IDAT) + { + if (!(png_ptr->mode & PNG_HAVE_IHDR)) + png_chunk_error(png_ptr, "Missing IHDR before IDAT"); + + else if (png_ptr->color_type == PNG_COLOR_TYPE_PALETTE && + !(png_ptr->mode & PNG_HAVE_PLTE)) + png_chunk_error(png_ptr, "Missing PLTE before IDAT"); + + else if (png_ptr->mode & PNG_AFTER_IDAT) + png_chunk_benign_error(png_ptr, "Too many IDATs found"); + + png_ptr->mode |= PNG_HAVE_IDAT; + } + + else if (png_ptr->mode & PNG_HAVE_IDAT) + png_ptr->mode |= PNG_AFTER_IDAT; + + /* This should be a binary subdivision search or a hash for + * matching the chunk name rather than a linear search. + */ + if (chunk_name == png_IHDR) + png_handle_IHDR(png_ptr, info_ptr, length); + + else if (chunk_name == png_IEND) + png_handle_IEND(png_ptr, info_ptr, length); + +#ifdef PNG_HANDLE_AS_UNKNOWN_SUPPORTED + else if ((keep = png_chunk_unknown_handling(png_ptr, chunk_name)) != 0) + { + png_handle_unknown(png_ptr, info_ptr, length, keep); + + if (chunk_name == png_PLTE) + png_ptr->mode |= PNG_HAVE_PLTE; + + else if (chunk_name == png_IDAT) + { + png_ptr->idat_size = 0; /* It has been consumed */ + break; + } + } +#endif + else if (chunk_name == png_PLTE) + png_handle_PLTE(png_ptr, info_ptr, length); + + else if (chunk_name == png_IDAT) + { + png_ptr->idat_size = length; + break; + } + +#ifdef PNG_READ_bKGD_SUPPORTED + else if (chunk_name == png_bKGD) + png_handle_bKGD(png_ptr, info_ptr, length); +#endif + +#ifdef PNG_READ_cHRM_SUPPORTED + else if (chunk_name == png_cHRM) + png_handle_cHRM(png_ptr, info_ptr, length); +#endif + +#ifdef PNG_READ_gAMA_SUPPORTED + else if (chunk_name == png_gAMA) + png_handle_gAMA(png_ptr, info_ptr, length); +#endif + +#ifdef PNG_READ_hIST_SUPPORTED + else if (chunk_name == png_hIST) + png_handle_hIST(png_ptr, info_ptr, length); +#endif + +#ifdef PNG_READ_oFFs_SUPPORTED + else if (chunk_name == png_oFFs) + png_handle_oFFs(png_ptr, info_ptr, length); +#endif + +#ifdef PNG_READ_pCAL_SUPPORTED + else if (chunk_name == png_pCAL) + png_handle_pCAL(png_ptr, info_ptr, length); +#endif + +#ifdef PNG_READ_sCAL_SUPPORTED + else if (chunk_name == png_sCAL) + png_handle_sCAL(png_ptr, info_ptr, length); +#endif + +#ifdef PNG_READ_pHYs_SUPPORTED + else if (chunk_name == png_pHYs) + png_handle_pHYs(png_ptr, info_ptr, length); +#endif + +#ifdef PNG_READ_sBIT_SUPPORTED + else if (chunk_name == png_sBIT) + png_handle_sBIT(png_ptr, info_ptr, length); +#endif + +#ifdef PNG_READ_sRGB_SUPPORTED + else if (chunk_name == png_sRGB) + png_handle_sRGB(png_ptr, info_ptr, length); +#endif + +#ifdef PNG_READ_iCCP_SUPPORTED + else if (chunk_name == png_iCCP) + png_handle_iCCP(png_ptr, info_ptr, length); +#endif + +#ifdef PNG_READ_sPLT_SUPPORTED + else if (chunk_name == png_sPLT) + png_handle_sPLT(png_ptr, info_ptr, length); +#endif + +#ifdef PNG_READ_tEXt_SUPPORTED + else if (chunk_name == png_tEXt) + png_handle_tEXt(png_ptr, info_ptr, length); +#endif + +#ifdef PNG_READ_tIME_SUPPORTED + else if (chunk_name == png_tIME) + png_handle_tIME(png_ptr, info_ptr, length); +#endif + +#ifdef PNG_READ_tRNS_SUPPORTED + else if (chunk_name == png_tRNS) + png_handle_tRNS(png_ptr, info_ptr, length); +#endif + +#ifdef PNG_READ_zTXt_SUPPORTED + else if (chunk_name == png_zTXt) + png_handle_zTXt(png_ptr, info_ptr, length); +#endif + +#ifdef PNG_READ_iTXt_SUPPORTED + else if (chunk_name == png_iTXt) + png_handle_iTXt(png_ptr, info_ptr, length); +#endif + + else + png_handle_unknown(png_ptr, info_ptr, length, + PNG_HANDLE_CHUNK_AS_DEFAULT); + } +} +#endif /* PNG_SEQUENTIAL_READ_SUPPORTED */ + +/* Optional call to update the users info_ptr structure */ +void PNGAPI +png_read_update_info(png_structrp png_ptr, png_inforp info_ptr) +{ + png_debug(1, "in png_read_update_info"); + + if (png_ptr != NULL) + { + if ((png_ptr->flags & PNG_FLAG_ROW_INIT) == 0) + { + png_read_start_row(png_ptr); + +# ifdef PNG_READ_TRANSFORMS_SUPPORTED + png_read_transform_info(png_ptr, info_ptr); +# else + PNG_UNUSED(info_ptr) +# endif + } + + /* New in 1.6.0 this avoids the bug of doing the initializations twice */ + else + png_app_error(png_ptr, + "png_read_update_info/png_start_read_image: duplicate call"); + } +} + +#ifdef PNG_SEQUENTIAL_READ_SUPPORTED +/* Initialize palette, background, etc, after transformations + * are set, but before any reading takes place. This allows + * the user to obtain a gamma-corrected palette, for example. + * If the user doesn't call this, we will do it ourselves. + */ +void PNGAPI +png_start_read_image(png_structrp png_ptr) +{ + png_debug(1, "in png_start_read_image"); + + if (png_ptr != NULL) + { + if ((png_ptr->flags & PNG_FLAG_ROW_INIT) == 0) + png_read_start_row(png_ptr); + + /* New in 1.6.0 this avoids the bug of doing the initializations twice */ + else + png_app_error(png_ptr, + "png_start_read_image/png_read_update_info: duplicate call"); + } +} +#endif /* PNG_SEQUENTIAL_READ_SUPPORTED */ + +#ifdef PNG_SEQUENTIAL_READ_SUPPORTED +#ifdef PNG_MNG_FEATURES_SUPPORTED +/* Undoes intrapixel differencing, + * NOTE: this is apparently only supported in the 'sequential' reader. + */ +static void +png_do_read_intrapixel(png_row_infop row_info, png_bytep row) +{ + png_debug(1, "in png_do_read_intrapixel"); + + if ( + (row_info->color_type & PNG_COLOR_MASK_COLOR)) + { + int bytes_per_pixel; + png_uint_32 row_width = row_info->width; + + if (row_info->bit_depth == 8) + { + png_bytep rp; + png_uint_32 i; + + if (row_info->color_type == PNG_COLOR_TYPE_RGB) + bytes_per_pixel = 3; + + else if (row_info->color_type == PNG_COLOR_TYPE_RGB_ALPHA) + bytes_per_pixel = 4; + + else + return; + + for (i = 0, rp = row; i < row_width; i++, rp += bytes_per_pixel) + { + *(rp) = (png_byte)((256 + *rp + *(rp + 1)) & 0xff); + *(rp+2) = (png_byte)((256 + *(rp + 2) + *(rp + 1)) & 0xff); + } + } + else if (row_info->bit_depth == 16) + { + png_bytep rp; + png_uint_32 i; + + if (row_info->color_type == PNG_COLOR_TYPE_RGB) + bytes_per_pixel = 6; + + else if (row_info->color_type == PNG_COLOR_TYPE_RGB_ALPHA) + bytes_per_pixel = 8; + + else + return; + + for (i = 0, rp = row; i < row_width; i++, rp += bytes_per_pixel) + { + png_uint_32 s0 = (*(rp ) << 8) | *(rp + 1); + png_uint_32 s1 = (*(rp + 2) << 8) | *(rp + 3); + png_uint_32 s2 = (*(rp + 4) << 8) | *(rp + 5); + png_uint_32 red = (s0 + s1 + 65536) & 0xffff; + png_uint_32 blue = (s2 + s1 + 65536) & 0xffff; + *(rp ) = (png_byte)((red >> 8) & 0xff); + *(rp + 1) = (png_byte)(red & 0xff); + *(rp + 4) = (png_byte)((blue >> 8) & 0xff); + *(rp + 5) = (png_byte)(blue & 0xff); + } + } + } +} +#endif /* PNG_MNG_FEATURES_SUPPORTED */ + +void PNGAPI +png_read_row(png_structrp png_ptr, png_bytep row, png_bytep dsp_row) +{ + png_row_info row_info; + + if (png_ptr == NULL) + return; + + png_debug2(1, "in png_read_row (row %lu, pass %d)", + (unsigned long)png_ptr->row_number, png_ptr->pass); + + /* png_read_start_row sets the information (in particular iwidth) for this + * interlace pass. + */ + if (!(png_ptr->flags & PNG_FLAG_ROW_INIT)) + png_read_start_row(png_ptr); + + /* 1.5.6: row_info moved out of png_struct to a local here. */ + row_info.width = png_ptr->iwidth; /* NOTE: width of current interlaced row */ + row_info.color_type = png_ptr->color_type; + row_info.bit_depth = png_ptr->bit_depth; + row_info.channels = png_ptr->channels; + row_info.pixel_depth = png_ptr->pixel_depth; + row_info.rowbytes = PNG_ROWBYTES(row_info.pixel_depth, row_info.width); + + if (png_ptr->row_number == 0 && png_ptr->pass == 0) + { + /* Check for transforms that have been set but were defined out */ +#if defined(PNG_WRITE_INVERT_SUPPORTED) && !defined(PNG_READ_INVERT_SUPPORTED) + if (png_ptr->transformations & PNG_INVERT_MONO) + png_warning(png_ptr, "PNG_READ_INVERT_SUPPORTED is not defined"); +#endif + +#if defined(PNG_WRITE_FILLER_SUPPORTED) && !defined(PNG_READ_FILLER_SUPPORTED) + if (png_ptr->transformations & PNG_FILLER) + png_warning(png_ptr, "PNG_READ_FILLER_SUPPORTED is not defined"); +#endif + +#if defined(PNG_WRITE_PACKSWAP_SUPPORTED) && \ + !defined(PNG_READ_PACKSWAP_SUPPORTED) + if (png_ptr->transformations & PNG_PACKSWAP) + png_warning(png_ptr, "PNG_READ_PACKSWAP_SUPPORTED is not defined"); +#endif + +#if defined(PNG_WRITE_PACK_SUPPORTED) && !defined(PNG_READ_PACK_SUPPORTED) + if (png_ptr->transformations & PNG_PACK) + png_warning(png_ptr, "PNG_READ_PACK_SUPPORTED is not defined"); +#endif + +#if defined(PNG_WRITE_SHIFT_SUPPORTED) && !defined(PNG_READ_SHIFT_SUPPORTED) + if (png_ptr->transformations & PNG_SHIFT) + png_warning(png_ptr, "PNG_READ_SHIFT_SUPPORTED is not defined"); +#endif + +#if defined(PNG_WRITE_BGR_SUPPORTED) && !defined(PNG_READ_BGR_SUPPORTED) + if (png_ptr->transformations & PNG_BGR) + png_warning(png_ptr, "PNG_READ_BGR_SUPPORTED is not defined"); +#endif + +#if defined(PNG_WRITE_SWAP_SUPPORTED) && !defined(PNG_READ_SWAP_SUPPORTED) + if (png_ptr->transformations & PNG_SWAP_BYTES) + png_warning(png_ptr, "PNG_READ_SWAP_SUPPORTED is not defined"); +#endif + } + +#ifdef PNG_READ_INTERLACING_SUPPORTED + /* If interlaced and we do not need a new row, combine row and return. + * Notice that the pixels we have from previous rows have been transformed + * already; we can only combine like with like (transformed or + * untransformed) and, because of the libpng API for interlaced images, this + * means we must transform before de-interlacing. + */ + if (png_ptr->interlaced && (png_ptr->transformations & PNG_INTERLACE)) + { + switch (png_ptr->pass) + { + case 0: + if (png_ptr->row_number & 0x07) + { + if (dsp_row != NULL) + png_combine_row(png_ptr, dsp_row, 1/*display*/); + png_read_finish_row(png_ptr); + return; + } + break; + + case 1: + if ((png_ptr->row_number & 0x07) || png_ptr->width < 5) + { + if (dsp_row != NULL) + png_combine_row(png_ptr, dsp_row, 1/*display*/); + + png_read_finish_row(png_ptr); + return; + } + break; + + case 2: + if ((png_ptr->row_number & 0x07) != 4) + { + if (dsp_row != NULL && (png_ptr->row_number & 4)) + png_combine_row(png_ptr, dsp_row, 1/*display*/); + + png_read_finish_row(png_ptr); + return; + } + break; + + case 3: + if ((png_ptr->row_number & 3) || png_ptr->width < 3) + { + if (dsp_row != NULL) + png_combine_row(png_ptr, dsp_row, 1/*display*/); + + png_read_finish_row(png_ptr); + return; + } + break; + + case 4: + if ((png_ptr->row_number & 3) != 2) + { + if (dsp_row != NULL && (png_ptr->row_number & 2)) + png_combine_row(png_ptr, dsp_row, 1/*display*/); + + png_read_finish_row(png_ptr); + return; + } + break; + + case 5: + if ((png_ptr->row_number & 1) || png_ptr->width < 2) + { + if (dsp_row != NULL) + png_combine_row(png_ptr, dsp_row, 1/*display*/); + + png_read_finish_row(png_ptr); + return; + } + break; + + default: + case 6: + if (!(png_ptr->row_number & 1)) + { + png_read_finish_row(png_ptr); + return; + } + break; + } + } +#endif + + if (!(png_ptr->mode & PNG_HAVE_IDAT)) + png_error(png_ptr, "Invalid attempt to read row data"); + + /* Fill the row with IDAT data: */ + png_read_IDAT_data(png_ptr, png_ptr->row_buf, row_info.rowbytes + 1); + + if (png_ptr->row_buf[0] > PNG_FILTER_VALUE_NONE) + { + if (png_ptr->row_buf[0] < PNG_FILTER_VALUE_LAST) + png_read_filter_row(png_ptr, &row_info, png_ptr->row_buf + 1, + png_ptr->prev_row + 1, png_ptr->row_buf[0]); + else + png_error(png_ptr, "bad adaptive filter value"); + } + + /* libpng 1.5.6: the following line was copying png_ptr->rowbytes before + * 1.5.6, while the buffer really is this big in current versions of libpng + * it may not be in the future, so this was changed just to copy the + * interlaced count: + */ + memcpy(png_ptr->prev_row, png_ptr->row_buf, row_info.rowbytes + 1); + +#ifdef PNG_MNG_FEATURES_SUPPORTED + if ((png_ptr->mng_features_permitted & PNG_FLAG_MNG_FILTER_64) && + (png_ptr->filter_type == PNG_INTRAPIXEL_DIFFERENCING)) + { + /* Intrapixel differencing */ + png_do_read_intrapixel(&row_info, png_ptr->row_buf + 1); + } +#endif + +#ifdef PNG_READ_TRANSFORMS_SUPPORTED + if (png_ptr->transformations) + png_do_read_transformations(png_ptr, &row_info); +#endif + + /* The transformed pixel depth should match the depth now in row_info. */ + if (png_ptr->transformed_pixel_depth == 0) + { + png_ptr->transformed_pixel_depth = row_info.pixel_depth; + if (row_info.pixel_depth > png_ptr->maximum_pixel_depth) + png_error(png_ptr, "sequential row overflow"); + } + + else if (png_ptr->transformed_pixel_depth != row_info.pixel_depth) + png_error(png_ptr, "internal sequential row size calculation error"); + +#ifdef PNG_READ_INTERLACING_SUPPORTED + /* Expand interlaced rows to full size */ + if (png_ptr->interlaced && + (png_ptr->transformations & PNG_INTERLACE)) + { + if (png_ptr->pass < 6) + png_do_read_interlace(&row_info, png_ptr->row_buf + 1, png_ptr->pass, + png_ptr->transformations); + + if (dsp_row != NULL) + png_combine_row(png_ptr, dsp_row, 1/*display*/); + + if (row != NULL) + png_combine_row(png_ptr, row, 0/*row*/); + } + + else +#endif + { + if (row != NULL) + png_combine_row(png_ptr, row, -1/*ignored*/); + + if (dsp_row != NULL) + png_combine_row(png_ptr, dsp_row, -1/*ignored*/); + } + png_read_finish_row(png_ptr); + + if (png_ptr->read_row_fn != NULL) + (*(png_ptr->read_row_fn))(png_ptr, png_ptr->row_number, png_ptr->pass); + +} +#endif /* PNG_SEQUENTIAL_READ_SUPPORTED */ + +#ifdef PNG_SEQUENTIAL_READ_SUPPORTED +/* Read one or more rows of image data. If the image is interlaced, + * and png_set_interlace_handling() has been called, the rows need to + * contain the contents of the rows from the previous pass. If the + * image has alpha or transparency, and png_handle_alpha()[*] has been + * called, the rows contents must be initialized to the contents of the + * screen. + * + * "row" holds the actual image, and pixels are placed in it + * as they arrive. If the image is displayed after each pass, it will + * appear to "sparkle" in. "display_row" can be used to display a + * "chunky" progressive image, with finer detail added as it becomes + * available. If you do not want this "chunky" display, you may pass + * NULL for display_row. If you do not want the sparkle display, and + * you have not called png_handle_alpha(), you may pass NULL for rows. + * If you have called png_handle_alpha(), and the image has either an + * alpha channel or a transparency chunk, you must provide a buffer for + * rows. In this case, you do not have to provide a display_row buffer + * also, but you may. If the image is not interlaced, or if you have + * not called png_set_interlace_handling(), the display_row buffer will + * be ignored, so pass NULL to it. + * + * [*] png_handle_alpha() does not exist yet, as of this version of libpng + */ + +void PNGAPI +png_read_rows(png_structrp png_ptr, png_bytepp row, + png_bytepp display_row, png_uint_32 num_rows) +{ + png_uint_32 i; + png_bytepp rp; + png_bytepp dp; + + png_debug(1, "in png_read_rows"); + + if (png_ptr == NULL) + return; + + rp = row; + dp = display_row; + if (rp != NULL && dp != NULL) + for (i = 0; i < num_rows; i++) + { + png_bytep rptr = *rp++; + png_bytep dptr = *dp++; + + png_read_row(png_ptr, rptr, dptr); + } + + else if (rp != NULL) + for (i = 0; i < num_rows; i++) + { + png_bytep rptr = *rp; + png_read_row(png_ptr, rptr, NULL); + rp++; + } + + else if (dp != NULL) + for (i = 0; i < num_rows; i++) + { + png_bytep dptr = *dp; + png_read_row(png_ptr, NULL, dptr); + dp++; + } +} +#endif /* PNG_SEQUENTIAL_READ_SUPPORTED */ + +#ifdef PNG_SEQUENTIAL_READ_SUPPORTED +/* Read the entire image. If the image has an alpha channel or a tRNS + * chunk, and you have called png_handle_alpha()[*], you will need to + * initialize the image to the current image that PNG will be overlaying. + * We set the num_rows again here, in case it was incorrectly set in + * png_read_start_row() by a call to png_read_update_info() or + * png_start_read_image() if png_set_interlace_handling() wasn't called + * prior to either of these functions like it should have been. You can + * only call this function once. If you desire to have an image for + * each pass of a interlaced image, use png_read_rows() instead. + * + * [*] png_handle_alpha() does not exist yet, as of this version of libpng + */ +void PNGAPI +png_read_image(png_structrp png_ptr, png_bytepp image) +{ + png_uint_32 i, image_height; + int pass, j; + png_bytepp rp; + + png_debug(1, "in png_read_image"); + + if (png_ptr == NULL) + return; + +#ifdef PNG_READ_INTERLACING_SUPPORTED + if (!(png_ptr->flags & PNG_FLAG_ROW_INIT)) + { + pass = png_set_interlace_handling(png_ptr); + /* And make sure transforms are initialized. */ + png_start_read_image(png_ptr); + } + else + { + if (png_ptr->interlaced && !(png_ptr->transformations & PNG_INTERLACE)) + { + /* Caller called png_start_read_image or png_read_update_info without + * first turning on the PNG_INTERLACE transform. We can fix this here, + * but the caller should do it! + */ + png_warning(png_ptr, "Interlace handling should be turned on when " + "using png_read_image"); + /* Make sure this is set correctly */ + png_ptr->num_rows = png_ptr->height; + } + + /* Obtain the pass number, which also turns on the PNG_INTERLACE flag in + * the above error case. + */ + pass = png_set_interlace_handling(png_ptr); + } +#else + if (png_ptr->interlaced) + png_error(png_ptr, + "Cannot read interlaced image -- interlace handler disabled"); + + pass = 1; +#endif + + image_height=png_ptr->height; + + for (j = 0; j < pass; j++) + { + rp = image; + for (i = 0; i < image_height; i++) + { + png_read_row(png_ptr, *rp, NULL); + rp++; + } + } +} +#endif /* PNG_SEQUENTIAL_READ_SUPPORTED */ + +#ifdef PNG_SEQUENTIAL_READ_SUPPORTED +/* Read the end of the PNG file. Will not read past the end of the + * file, will verify the end is accurate, and will read any comments + * or time information at the end of the file, if info is not NULL. + */ +void PNGAPI +png_read_end(png_structrp png_ptr, png_inforp info_ptr) +{ +#ifdef PNG_HANDLE_AS_UNKNOWN_SUPPORTED + int keep; +#endif + + png_debug(1, "in png_read_end"); + + if (png_ptr == NULL) + return; + + /* If png_read_end is called in the middle of reading the rows there may + * still be pending IDAT data and an owned zstream. Deal with this here. + */ +#ifdef PNG_HANDLE_AS_UNKNOWN_SUPPORTED + if (!png_chunk_unknown_handling(png_ptr, png_IDAT)) +#endif + png_read_finish_IDAT(png_ptr); + +#ifdef PNG_READ_CHECK_FOR_INVALID_INDEX_SUPPORTED + /* Report invalid palette index; added at libng-1.5.10 */ + if (png_ptr->color_type == PNG_COLOR_TYPE_PALETTE && + png_ptr->num_palette_max > png_ptr->num_palette) + png_benign_error(png_ptr, "Read palette index exceeding num_palette"); +#endif + + do + { + png_uint_32 length = png_read_chunk_header(png_ptr); + png_uint_32 chunk_name = png_ptr->chunk_name; + + if (chunk_name == png_IEND) + png_handle_IEND(png_ptr, info_ptr, length); + + else if (chunk_name == png_IHDR) + png_handle_IHDR(png_ptr, info_ptr, length); + + else if (info_ptr == NULL) + png_crc_finish(png_ptr, length); + +#ifdef PNG_HANDLE_AS_UNKNOWN_SUPPORTED + else if ((keep = png_chunk_unknown_handling(png_ptr, chunk_name)) != 0) + { + if (chunk_name == png_IDAT) + { + if ((length > 0) || (png_ptr->mode & PNG_HAVE_CHUNK_AFTER_IDAT)) + png_benign_error(png_ptr, "Too many IDATs found"); + } + png_handle_unknown(png_ptr, info_ptr, length, keep); + if (chunk_name == png_PLTE) + png_ptr->mode |= PNG_HAVE_PLTE; + } +#endif + + else if (chunk_name == png_IDAT) + { + /* Zero length IDATs are legal after the last IDAT has been + * read, but not after other chunks have been read. + */ + if ((length > 0) || (png_ptr->mode & PNG_HAVE_CHUNK_AFTER_IDAT)) + png_benign_error(png_ptr, "Too many IDATs found"); + + png_crc_finish(png_ptr, length); + } + else if (chunk_name == png_PLTE) + png_handle_PLTE(png_ptr, info_ptr, length); + +#ifdef PNG_READ_bKGD_SUPPORTED + else if (chunk_name == png_bKGD) + png_handle_bKGD(png_ptr, info_ptr, length); +#endif + +#ifdef PNG_READ_cHRM_SUPPORTED + else if (chunk_name == png_cHRM) + png_handle_cHRM(png_ptr, info_ptr, length); +#endif + +#ifdef PNG_READ_gAMA_SUPPORTED + else if (chunk_name == png_gAMA) + png_handle_gAMA(png_ptr, info_ptr, length); +#endif + +#ifdef PNG_READ_hIST_SUPPORTED + else if (chunk_name == png_hIST) + png_handle_hIST(png_ptr, info_ptr, length); +#endif + +#ifdef PNG_READ_oFFs_SUPPORTED + else if (chunk_name == png_oFFs) + png_handle_oFFs(png_ptr, info_ptr, length); +#endif + +#ifdef PNG_READ_pCAL_SUPPORTED + else if (chunk_name == png_pCAL) + png_handle_pCAL(png_ptr, info_ptr, length); +#endif + +#ifdef PNG_READ_sCAL_SUPPORTED + else if (chunk_name == png_sCAL) + png_handle_sCAL(png_ptr, info_ptr, length); +#endif + +#ifdef PNG_READ_pHYs_SUPPORTED + else if (chunk_name == png_pHYs) + png_handle_pHYs(png_ptr, info_ptr, length); +#endif + +#ifdef PNG_READ_sBIT_SUPPORTED + else if (chunk_name == png_sBIT) + png_handle_sBIT(png_ptr, info_ptr, length); +#endif + +#ifdef PNG_READ_sRGB_SUPPORTED + else if (chunk_name == png_sRGB) + png_handle_sRGB(png_ptr, info_ptr, length); +#endif + +#ifdef PNG_READ_iCCP_SUPPORTED + else if (chunk_name == png_iCCP) + png_handle_iCCP(png_ptr, info_ptr, length); +#endif + +#ifdef PNG_READ_sPLT_SUPPORTED + else if (chunk_name == png_sPLT) + png_handle_sPLT(png_ptr, info_ptr, length); +#endif + +#ifdef PNG_READ_tEXt_SUPPORTED + else if (chunk_name == png_tEXt) + png_handle_tEXt(png_ptr, info_ptr, length); +#endif + +#ifdef PNG_READ_tIME_SUPPORTED + else if (chunk_name == png_tIME) + png_handle_tIME(png_ptr, info_ptr, length); +#endif + +#ifdef PNG_READ_tRNS_SUPPORTED + else if (chunk_name == png_tRNS) + png_handle_tRNS(png_ptr, info_ptr, length); +#endif + +#ifdef PNG_READ_zTXt_SUPPORTED + else if (chunk_name == png_zTXt) + png_handle_zTXt(png_ptr, info_ptr, length); +#endif + +#ifdef PNG_READ_iTXt_SUPPORTED + else if (chunk_name == png_iTXt) + png_handle_iTXt(png_ptr, info_ptr, length); +#endif + + else + png_handle_unknown(png_ptr, info_ptr, length, + PNG_HANDLE_CHUNK_AS_DEFAULT); + } while (!(png_ptr->mode & PNG_HAVE_IEND)); +} +#endif /* PNG_SEQUENTIAL_READ_SUPPORTED */ + +/* Free all memory used in the read struct */ +static void +png_read_destroy(png_structrp png_ptr) +{ + png_debug(1, "in png_read_destroy"); + +#ifdef PNG_READ_GAMMA_SUPPORTED + png_destroy_gamma_table(png_ptr); +#endif + + png_free(png_ptr, png_ptr->big_row_buf); + png_free(png_ptr, png_ptr->big_prev_row); + png_free(png_ptr, png_ptr->read_buffer); + +#ifdef PNG_READ_QUANTIZE_SUPPORTED + png_free(png_ptr, png_ptr->palette_lookup); + png_free(png_ptr, png_ptr->quantize_index); +#endif + + if (png_ptr->free_me & PNG_FREE_PLTE) + png_zfree(png_ptr, png_ptr->palette); + png_ptr->free_me &= ~PNG_FREE_PLTE; + +#if defined(PNG_tRNS_SUPPORTED) || \ + defined(PNG_READ_EXPAND_SUPPORTED) || defined(PNG_READ_BACKGROUND_SUPPORTED) + if (png_ptr->free_me & PNG_FREE_TRNS) + png_free(png_ptr, png_ptr->trans_alpha); + png_ptr->free_me &= ~PNG_FREE_TRNS; +#endif + + inflateEnd(&png_ptr->zstream); + +#ifdef PNG_PROGRESSIVE_READ_SUPPORTED + png_free(png_ptr, png_ptr->save_buffer); +#endif + +#if defined(PNG_STORE_UNKNOWN_CHUNKS_SUPPORTED) &&\ + defined(PNG_READ_UNKNOWN_CHUNKS_SUPPORTED) + png_free(png_ptr, png_ptr->unknown_chunk.data); +#endif + +#ifdef PNG_SET_UNKNOWN_CHUNKS_SUPPORTED + png_free(png_ptr, png_ptr->chunk_list); +#endif + + /* NOTE: the 'setjmp' buffer may still be allocated and the memory and error + * callbacks are still set at this point. They are required to complete the + * destruction of the png_struct itself. + */ +} + +/* Free all memory used by the read */ +void PNGAPI +png_destroy_read_struct(png_structpp png_ptr_ptr, png_infopp info_ptr_ptr, + png_infopp end_info_ptr_ptr) +{ + png_structrp png_ptr = NULL; + + png_debug(1, "in png_destroy_read_struct"); + + if (png_ptr_ptr != NULL) + png_ptr = *png_ptr_ptr; + + if (png_ptr == NULL) + return; + + /* libpng 1.6.0: use the API to destroy info structs to ensure consistent + * behavior. Prior to 1.6.0 libpng did extra 'info' destruction in this API. + * The extra was, apparently, unnecessary yet this hides memory leak bugs. + */ + png_destroy_info_struct(png_ptr, end_info_ptr_ptr); + png_destroy_info_struct(png_ptr, info_ptr_ptr); + + *png_ptr_ptr = NULL; + png_read_destroy(png_ptr); + png_destroy_png_struct(png_ptr); +} + +void PNGAPI +png_set_read_status_fn(png_structrp png_ptr, png_read_status_ptr read_row_fn) +{ + if (png_ptr == NULL) + return; + + png_ptr->read_row_fn = read_row_fn; +} + + +#ifdef PNG_SEQUENTIAL_READ_SUPPORTED +#ifdef PNG_INFO_IMAGE_SUPPORTED +void PNGAPI +png_read_png(png_structrp png_ptr, png_inforp info_ptr, + int transforms, + voidp params) +{ + if (png_ptr == NULL || info_ptr == NULL) + return; + + /* png_read_info() gives us all of the information from the + * PNG file before the first IDAT (image data chunk). + */ + png_read_info(png_ptr, info_ptr); + if (info_ptr->height > PNG_UINT_32_MAX/(sizeof (png_bytep))) + png_error(png_ptr, "Image is too high to process with png_read_png()"); + + /* -------------- image transformations start here ------------------- */ + /* libpng 1.6.10: add code to cause a png_app_error if a selected TRANSFORM + * is not implemented. This will only happen in de-configured (non-default) + * libpng builds. The results can be unexpected - png_read_png may return + * short or mal-formed rows because the transform is skipped. + */ + + /* Tell libpng to strip 16-bit/color files down to 8 bits per color. + */ + if (transforms & PNG_TRANSFORM_SCALE_16) + /* Added at libpng-1.5.4. "strip_16" produces the same result that it + * did in earlier versions, while "scale_16" is now more accurate. + */ +#ifdef PNG_READ_SCALE_16_TO_8_SUPPORTED + png_set_scale_16(png_ptr); +#else + png_app_error(png_ptr, "PNG_TRANSFORM_SCALE_16 not supported"); +#endif + + /* If both SCALE and STRIP are required pngrtran will effectively cancel the + * latter by doing SCALE first. This is ok and allows apps not to check for + * which is supported to get the right answer. + */ + if (transforms & PNG_TRANSFORM_STRIP_16) +#ifdef PNG_READ_STRIP_16_TO_8_SUPPORTED + png_set_strip_16(png_ptr); +#else + png_app_error(png_ptr, "PNG_TRANSFORM_STRIP_16 not supported"); +#endif + + /* Strip alpha bytes from the input data without combining with + * the background (not recommended). + */ + if (transforms & PNG_TRANSFORM_STRIP_ALPHA) +#ifdef PNG_READ_STRIP_ALPHA_SUPPORTED + png_set_strip_alpha(png_ptr); +#else + png_app_error(png_ptr, "PNG_TRANSFORM_STRIP_ALPHA not supported"); +#endif + + /* Extract multiple pixels with bit depths of 1, 2, or 4 from a single + * byte into separate bytes (useful for paletted and grayscale images). + */ + if (transforms & PNG_TRANSFORM_PACKING) +#ifdef PNG_READ_PACK_SUPPORTED + png_set_packing(png_ptr); +#else + png_app_error(png_ptr, "PNG_TRANSFORM_PACKING not supported"); +#endif + + /* Change the order of packed pixels to least significant bit first + * (not useful if you are using png_set_packing). + */ + if (transforms & PNG_TRANSFORM_PACKSWAP) +#ifdef PNG_READ_PACKSWAP_SUPPORTED + png_set_packswap(png_ptr); +#else + png_app_error(png_ptr, "PNG_TRANSFORM_PACKSWAP not supported"); +#endif + + /* Expand paletted colors into true RGB triplets + * Expand grayscale images to full 8 bits from 1, 2, or 4 bits/pixel + * Expand paletted or RGB images with transparency to full alpha + * channels so the data will be available as RGBA quartets. + */ + if (transforms & PNG_TRANSFORM_EXPAND) +#ifdef PNG_READ_EXPAND_SUPPORTED + png_set_expand(png_ptr); +#else + png_app_error(png_ptr, "PNG_TRANSFORM_EXPAND not supported"); +#endif + + /* We don't handle background color or gamma transformation or quantizing. + */ + + /* Invert monochrome files to have 0 as white and 1 as black + */ + if (transforms & PNG_TRANSFORM_INVERT_MONO) +#ifdef PNG_READ_INVERT_SUPPORTED + png_set_invert_mono(png_ptr); +#else + png_app_error(png_ptr, "PNG_TRANSFORM_INVERT_MONO not supported"); +#endif + + /* If you want to shift the pixel values from the range [0,255] or + * [0,65535] to the original [0,7] or [0,31], or whatever range the + * colors were originally in: + */ + if (transforms & PNG_TRANSFORM_SHIFT) +#ifdef PNG_READ_SHIFT_SUPPORTED + if (info_ptr->valid & PNG_INFO_sBIT) + png_set_shift(png_ptr, &info_ptr->sig_bit); +#else + png_app_error(png_ptr, "PNG_TRANSFORM_SHIFT not supported"); +#endif + + /* Flip the RGB pixels to BGR (or RGBA to BGRA) */ + if (transforms & PNG_TRANSFORM_BGR) +#ifdef PNG_READ_BGR_SUPPORTED + png_set_bgr(png_ptr); +#else + png_app_error(png_ptr, "PNG_TRANSFORM_BGR not supported"); +#endif + + /* Swap the RGBA or GA data to ARGB or AG (or BGRA to ABGR) */ + if (transforms & PNG_TRANSFORM_SWAP_ALPHA) +#ifdef PNG_READ_SWAP_ALPHA_SUPPORTED + png_set_swap_alpha(png_ptr); +#else + png_app_error(png_ptr, "PNG_TRANSFORM_SWAP_ALPHA not supported"); +#endif + + /* Swap bytes of 16-bit files to least significant byte first */ + if (transforms & PNG_TRANSFORM_SWAP_ENDIAN) +#ifdef PNG_READ_SWAP_SUPPORTED + png_set_swap(png_ptr); +#else + png_app_error(png_ptr, "PNG_TRANSFORM_SWAP_ENDIAN not supported"); +#endif + +/* Added at libpng-1.2.41 */ + /* Invert the alpha channel from opacity to transparency */ + if (transforms & PNG_TRANSFORM_INVERT_ALPHA) +#ifdef PNG_READ_INVERT_ALPHA_SUPPORTED + png_set_invert_alpha(png_ptr); +#else + png_app_error(png_ptr, "PNG_TRANSFORM_INVERT_ALPHA not supported"); +#endif + +/* Added at libpng-1.2.41 */ + /* Expand grayscale image to RGB */ + if (transforms & PNG_TRANSFORM_GRAY_TO_RGB) +#ifdef PNG_READ_GRAY_TO_RGB_SUPPORTED + png_set_gray_to_rgb(png_ptr); +#else + png_app_error(png_ptr, "PNG_TRANSFORM_GRAY_TO_RGB not supported"); +#endif + +/* Added at libpng-1.5.4 */ + if (transforms & PNG_TRANSFORM_EXPAND_16) +#ifdef PNG_READ_EXPAND_16_SUPPORTED + png_set_expand_16(png_ptr); +#else + png_app_error(png_ptr, "PNG_TRANSFORM_EXPAND_16 not supported"); +#endif + + /* We don't handle adding filler bytes */ + + /* We use png_read_image and rely on that for interlace handling, but we also + * call png_read_update_info therefore must turn on interlace handling now: + */ + (void)png_set_interlace_handling(png_ptr); + + /* Optional call to gamma correct and add the background to the palette + * and update info structure. REQUIRED if you are expecting libpng to + * update the palette for you (i.e., you selected such a transform above). + */ + png_read_update_info(png_ptr, info_ptr); + + /* -------------- image transformations end here ------------------- */ + + png_free_data(png_ptr, info_ptr, PNG_FREE_ROWS, 0); + if (info_ptr->row_pointers == NULL) + { + png_uint_32 iptr; + + info_ptr->row_pointers = png_voidcast(png_bytepp, png_malloc(png_ptr, + info_ptr->height * (sizeof (png_bytep)))); + + for (iptr=0; iptrheight; iptr++) + info_ptr->row_pointers[iptr] = NULL; + + info_ptr->free_me |= PNG_FREE_ROWS; + + for (iptr = 0; iptr < info_ptr->height; iptr++) + info_ptr->row_pointers[iptr] = png_voidcast(png_bytep, + png_malloc(png_ptr, info_ptr->rowbytes)); + } + + png_read_image(png_ptr, info_ptr->row_pointers); + info_ptr->valid |= PNG_INFO_IDAT; + + /* Read rest of file, and get additional chunks in info_ptr - REQUIRED */ + png_read_end(png_ptr, info_ptr); + + PNG_UNUSED(params) +} +#endif /* PNG_INFO_IMAGE_SUPPORTED */ +#endif /* PNG_SEQUENTIAL_READ_SUPPORTED */ + +#ifdef PNG_SIMPLIFIED_READ_SUPPORTED +/* SIMPLIFIED READ + * + * This code currently relies on the sequential reader, though it could easily + * be made to work with the progressive one. + */ +/* Arguments to png_image_finish_read: */ + +/* Encoding of PNG data (used by the color-map code) */ +# define P_NOTSET 0 /* File encoding not yet known */ +# define P_sRGB 1 /* 8-bit encoded to sRGB gamma */ +# define P_LINEAR 2 /* 16-bit linear: not encoded, NOT pre-multiplied! */ +# define P_FILE 3 /* 8-bit encoded to file gamma, not sRGB or linear */ +# define P_LINEAR8 4 /* 8-bit linear: only from a file value */ + +/* Color-map processing: after libpng has run on the PNG image further + * processing may be needed to conver the data to color-map indicies. + */ +#define PNG_CMAP_NONE 0 +#define PNG_CMAP_GA 1 /* Process GA data to a color-map with alpha */ +#define PNG_CMAP_TRANS 2 /* Process GA data to a background index */ +#define PNG_CMAP_RGB 3 /* Process RGB data */ +#define PNG_CMAP_RGB_ALPHA 4 /* Process RGBA data */ + +/* The following document where the background is for each processing case. */ +#define PNG_CMAP_NONE_BACKGROUND 256 +#define PNG_CMAP_GA_BACKGROUND 231 +#define PNG_CMAP_TRANS_BACKGROUND 254 +#define PNG_CMAP_RGB_BACKGROUND 256 +#define PNG_CMAP_RGB_ALPHA_BACKGROUND 216 + +typedef struct +{ + /* Arguments: */ + png_imagep image; + png_voidp buffer; + png_int_32 row_stride; + png_voidp colormap; + png_const_colorp background; + /* Local variables: */ + png_voidp local_row; + png_voidp first_row; + ptrdiff_t row_bytes; /* step between rows */ + int file_encoding; /* E_ values above */ + png_fixed_point gamma_to_linear; /* For P_FILE, reciprocal of gamma */ + int colormap_processing; /* PNG_CMAP_ values above */ +} png_image_read_control; + +/* Do all the *safe* initialization - 'safe' means that png_error won't be + * called, so setting up the jmp_buf is not required. This means that anything + * called from here must *not* call png_malloc - it has to call png_malloc_warn + * instead so that control is returned safely back to this routine. + */ +static int +png_image_read_init(png_imagep image) +{ + if (image->opaque == NULL) + { + png_structp png_ptr = png_create_read_struct(PNG_LIBPNG_VER_STRING, image, + png_safe_error, png_safe_warning); + + /* And set the rest of the structure to NULL to ensure that the various + * fields are consistent. + */ + memset(image, 0, (sizeof *image)); + image->version = PNG_IMAGE_VERSION; + + if (png_ptr != NULL) + { + png_infop info_ptr = png_create_info_struct(png_ptr); + + if (info_ptr != NULL) + { + png_controlp control = png_voidcast(png_controlp, + png_malloc_warn(png_ptr, (sizeof *control))); + + if (control != NULL) + { + memset(control, 0, (sizeof *control)); + + control->png_ptr = png_ptr; + control->info_ptr = info_ptr; + control->for_write = 0; + + image->opaque = control; + return 1; + } + + /* Error clean up */ + png_destroy_info_struct(png_ptr, &info_ptr); + } + + png_destroy_read_struct(&png_ptr, NULL, NULL); + } + + return png_image_error(image, "png_image_read: out of memory"); + } + + return png_image_error(image, "png_image_read: opaque pointer not NULL"); +} + +/* Utility to find the base format of a PNG file from a png_struct. */ +static png_uint_32 +png_image_format(png_structrp png_ptr) +{ + png_uint_32 format = 0; + + if (png_ptr->color_type & PNG_COLOR_MASK_COLOR) + format |= PNG_FORMAT_FLAG_COLOR; + + if (png_ptr->color_type & PNG_COLOR_MASK_ALPHA) + format |= PNG_FORMAT_FLAG_ALPHA; + + /* Use png_ptr here, not info_ptr, because by examination png_handle_tRNS + * sets the png_struct fields; that's all we are interested in here. The + * precise interaction with an app call to png_set_tRNS and PNG file reading + * is unclear. + */ + else if (png_ptr->num_trans > 0) + format |= PNG_FORMAT_FLAG_ALPHA; + + if (png_ptr->bit_depth == 16) + format |= PNG_FORMAT_FLAG_LINEAR; + + if (png_ptr->color_type & PNG_COLOR_MASK_PALETTE) + format |= PNG_FORMAT_FLAG_COLORMAP; + + return format; +} + +/* Is the given gamma significantly different from sRGB? The test is the same + * one used in pngrtran.c when deciding whether to do gamma correction. The + * arithmetic optimizes the division by using the fact that the inverse of the + * file sRGB gamma is 2.2 + */ +static int +png_gamma_not_sRGB(png_fixed_point g) +{ + if (g < PNG_FP_1) + { + /* An uninitialized gamma is assumed to be sRGB for the simplified API. */ + if (g == 0) + return 0; + + return png_gamma_significant((g * 11 + 2)/5 /* i.e. *2.2, rounded */); + } + + return 1; +} + +/* Do the main body of a 'png_image_begin_read' function; read the PNG file + * header and fill in all the information. This is executed in a safe context, + * unlike the init routine above. + */ +static int +png_image_read_header(png_voidp argument) +{ + png_imagep image = png_voidcast(png_imagep, argument); + png_structrp png_ptr = image->opaque->png_ptr; + png_inforp info_ptr = image->opaque->info_ptr; + + png_set_benign_errors(png_ptr, 1/*warn*/); + png_read_info(png_ptr, info_ptr); + + /* Do this the fast way; just read directly out of png_struct. */ + image->width = png_ptr->width; + image->height = png_ptr->height; + + { + png_uint_32 format = png_image_format(png_ptr); + + image->format = format; + +#ifdef PNG_COLORSPACE_SUPPORTED + /* Does the colorspace match sRGB? If there is no color endpoint + * (colorant) information assume yes, otherwise require the + * 'ENDPOINTS_MATCHP_sRGB' colorspace flag to have been set. If the + * colorspace has been determined to be invalid ignore it. + */ + if ((format & PNG_FORMAT_FLAG_COLOR) != 0 && ((png_ptr->colorspace.flags + & (PNG_COLORSPACE_HAVE_ENDPOINTS|PNG_COLORSPACE_ENDPOINTS_MATCH_sRGB| + PNG_COLORSPACE_INVALID)) == PNG_COLORSPACE_HAVE_ENDPOINTS)) + image->flags |= PNG_IMAGE_FLAG_COLORSPACE_NOT_sRGB; +#endif + } + + /* We need the maximum number of entries regardless of the format the + * application sets here. + */ + { + png_uint_32 cmap_entries; + + switch (png_ptr->color_type) + { + case PNG_COLOR_TYPE_GRAY: + cmap_entries = 1U << png_ptr->bit_depth; + break; + + case PNG_COLOR_TYPE_PALETTE: + cmap_entries = png_ptr->num_palette; + break; + + default: + cmap_entries = 256; + break; + } + + if (cmap_entries > 256) + cmap_entries = 256; + + image->colormap_entries = cmap_entries; + } + + return 1; +} + +#ifdef PNG_STDIO_SUPPORTED +int PNGAPI +png_image_begin_read_from_stdio(png_imagep image, FILE* file) +{ + if (image != NULL && image->version == PNG_IMAGE_VERSION) + { + if (file != NULL) + { + if (png_image_read_init(image)) + { + /* This is slightly evil, but png_init_io doesn't do anything other + * than this and we haven't changed the standard IO functions so + * this saves a 'safe' function. + */ + image->opaque->png_ptr->io_ptr = file; + return png_safe_execute(image, png_image_read_header, image); + } + } + + else + return png_image_error(image, + "png_image_begin_read_from_stdio: invalid argument"); + } + + else if (image != NULL) + return png_image_error(image, + "png_image_begin_read_from_stdio: incorrect PNG_IMAGE_VERSION"); + + return 0; +} + +int PNGAPI +png_image_begin_read_from_file(png_imagep image, const char *file_name) +{ + if (image != NULL && image->version == PNG_IMAGE_VERSION) + { + if (file_name != NULL) + { + FILE *fp = fopen(file_name, "rb"); + + if (fp != NULL) + { + if (png_image_read_init(image)) + { + image->opaque->png_ptr->io_ptr = fp; + image->opaque->owned_file = 1; + return png_safe_execute(image, png_image_read_header, image); + } + + /* Clean up: just the opened file. */ + (void)fclose(fp); + } + + else + return png_image_error(image, strerror(errno)); + } + + else + return png_image_error(image, + "png_image_begin_read_from_file: invalid argument"); + } + + else if (image != NULL) + return png_image_error(image, + "png_image_begin_read_from_file: incorrect PNG_IMAGE_VERSION"); + + return 0; +} +#endif /* PNG_STDIO_SUPPORTED */ + +static void PNGCBAPI +png_image_memory_read(png_structp png_ptr, png_bytep out, png_size_t need) +{ + if (png_ptr != NULL) + { + png_imagep image = png_voidcast(png_imagep, png_ptr->io_ptr); + if (image != NULL) + { + png_controlp cp = image->opaque; + if (cp != NULL) + { + png_const_bytep memory = cp->memory; + png_size_t size = cp->size; + + if (memory != NULL && size >= need) + { + memcpy(out, memory, need); + cp->memory = memory + need; + cp->size = size - need; + return; + } + + png_error(png_ptr, "read beyond end of data"); + } + } + + png_error(png_ptr, "invalid memory read"); + } +} + +int PNGAPI png_image_begin_read_from_memory(png_imagep image, + png_const_voidp memory, png_size_t size) +{ + if (image != NULL && image->version == PNG_IMAGE_VERSION) + { + if (memory != NULL && size > 0) + { + if (png_image_read_init(image)) + { + /* Now set the IO functions to read from the memory buffer and + * store it into io_ptr. Again do this in-place to avoid calling a + * libpng function that requires error handling. + */ + image->opaque->memory = png_voidcast(png_const_bytep, memory); + image->opaque->size = size; + image->opaque->png_ptr->io_ptr = image; + image->opaque->png_ptr->read_data_fn = png_image_memory_read; + + return png_safe_execute(image, png_image_read_header, image); + } + } + + else + return png_image_error(image, + "png_image_begin_read_from_memory: invalid argument"); + } + + else if (image != NULL) + return png_image_error(image, + "png_image_begin_read_from_memory: incorrect PNG_IMAGE_VERSION"); + + return 0; +} + +/* Utility function to skip chunks that are not used by the simplified image + * read functions and an appropriate macro to call it. + */ +#ifdef PNG_HANDLE_AS_UNKNOWN_SUPPORTED +static void +png_image_skip_unused_chunks(png_structrp png_ptr) +{ + /* Prepare the reader to ignore all recognized chunks whose data will not + * be used, i.e., all chunks recognized by libpng except for those + * involved in basic image reading: + * + * IHDR, PLTE, IDAT, IEND + * + * Or image data handling: + * + * tRNS, bKGD, gAMA, cHRM, sRGB, [iCCP] and sBIT. + * + * This provides a small performance improvement and eliminates any + * potential vulnerability to security problems in the unused chunks. + * + * At present the iCCP chunk data isn't used, so iCCP chunk can be ignored + * too. This allows the simplified API to be compiled without iCCP support, + * however if the support is there the chunk is still checked to detect + * errors (which are unfortunately quite common.) + */ + { + static PNG_CONST png_byte chunks_to_process[] = { + 98, 75, 71, 68, '\0', /* bKGD */ + 99, 72, 82, 77, '\0', /* cHRM */ + 103, 65, 77, 65, '\0', /* gAMA */ +# ifdef PNG_READ_iCCP_SUPPORTED + 105, 67, 67, 80, '\0', /* iCCP */ +# endif + 115, 66, 73, 84, '\0', /* sBIT */ + 115, 82, 71, 66, '\0', /* sRGB */ + }; + + /* Ignore unknown chunks and all other chunks except for the + * IHDR, PLTE, tRNS, IDAT, and IEND chunks. + */ + png_set_keep_unknown_chunks(png_ptr, PNG_HANDLE_CHUNK_NEVER, + NULL, -1); + + /* But do not ignore image data handling chunks */ + png_set_keep_unknown_chunks(png_ptr, PNG_HANDLE_CHUNK_AS_DEFAULT, + chunks_to_process, (sizeof chunks_to_process)/5); + } +} + +# define PNG_SKIP_CHUNKS(p) png_image_skip_unused_chunks(p) +#else +# define PNG_SKIP_CHUNKS(p) ((void)0) +#endif /* PNG_HANDLE_AS_UNKNOWN_SUPPORTED */ + +/* The following macro gives the exact rounded answer for all values in the + * range 0..255 (it actually divides by 51.2, but the rounding still generates + * the correct numbers 0..5 + */ +#define PNG_DIV51(v8) (((v8) * 5 + 130) >> 8) + +/* Utility functions to make particular color-maps */ +static void +set_file_encoding(png_image_read_control *display) +{ + png_fixed_point g = display->image->opaque->png_ptr->colorspace.gamma; + if (png_gamma_significant(g)) + { + if (png_gamma_not_sRGB(g)) + { + display->file_encoding = P_FILE; + display->gamma_to_linear = png_reciprocal(g); + } + + else + display->file_encoding = P_sRGB; + } + + else + display->file_encoding = P_LINEAR8; +} + +static unsigned int +decode_gamma(png_image_read_control *display, png_uint_32 value, int encoding) +{ + if (encoding == P_FILE) /* double check */ + encoding = display->file_encoding; + + if (encoding == P_NOTSET) /* must be the file encoding */ + { + set_file_encoding(display); + encoding = display->file_encoding; + } + + switch (encoding) + { + case P_FILE: + value = png_gamma_16bit_correct(value*257, display->gamma_to_linear); + break; + + case P_sRGB: + value = png_sRGB_table[value]; + break; + + case P_LINEAR: + break; + + case P_LINEAR8: + value *= 257; + break; + + default: + png_error(display->image->opaque->png_ptr, + "unexpected encoding (internal error)"); + break; + } + + return value; +} + +static png_uint_32 +png_colormap_compose(png_image_read_control *display, + png_uint_32 foreground, int foreground_encoding, png_uint_32 alpha, + png_uint_32 background, int encoding) +{ + /* The file value is composed on the background, the background has the given + * encoding and so does the result, the file is encoded with P_FILE and the + * file and alpha are 8-bit values. The (output) encoding will always be + * P_LINEAR or P_sRGB. + */ + png_uint_32 f = decode_gamma(display, foreground, foreground_encoding); + png_uint_32 b = decode_gamma(display, background, encoding); + + /* The alpha is always an 8-bit value (it comes from the palette), the value + * scaled by 255 is what PNG_sRGB_FROM_LINEAR requires. + */ + f = f * alpha + b * (255-alpha); + + if (encoding == P_LINEAR) + { + /* Scale to 65535; divide by 255, approximately (in fact this is extremely + * accurate, it divides by 255.00000005937181414556, with no overflow.) + */ + f *= 257; /* Now scaled by 65535 */ + f += f >> 16; + f = (f+32768) >> 16; + } + + else /* P_sRGB */ + f = PNG_sRGB_FROM_LINEAR(f); + + return f; +} + +/* NOTE: P_LINEAR values to this routine must be 16-bit, but P_FILE values must + * be 8-bit. + */ +static void +png_create_colormap_entry(png_image_read_control *display, + png_uint_32 ip, png_uint_32 red, png_uint_32 green, png_uint_32 blue, + png_uint_32 alpha, int encoding) +{ + png_imagep image = display->image; + const int output_encoding = (image->format & PNG_FORMAT_FLAG_LINEAR) ? + P_LINEAR : P_sRGB; + const int convert_to_Y = (image->format & PNG_FORMAT_FLAG_COLOR) == 0 && + (red != green || green != blue); + + if (ip > 255) + png_error(image->opaque->png_ptr, "color-map index out of range"); + + /* Update the cache with whether the file gamma is significantly different + * from sRGB. + */ + if (encoding == P_FILE) + { + if (display->file_encoding == P_NOTSET) + set_file_encoding(display); + + /* Note that the cached value may be P_FILE too, but if it is then the + * gamma_to_linear member has been set. + */ + encoding = display->file_encoding; + } + + if (encoding == P_FILE) + { + png_fixed_point g = display->gamma_to_linear; + + red = png_gamma_16bit_correct(red*257, g); + green = png_gamma_16bit_correct(green*257, g); + blue = png_gamma_16bit_correct(blue*257, g); + + if (convert_to_Y || output_encoding == P_LINEAR) + { + alpha *= 257; + encoding = P_LINEAR; + } + + else + { + red = PNG_sRGB_FROM_LINEAR(red * 255); + green = PNG_sRGB_FROM_LINEAR(green * 255); + blue = PNG_sRGB_FROM_LINEAR(blue * 255); + encoding = P_sRGB; + } + } + + else if (encoding == P_LINEAR8) + { + /* This encoding occurs quite frequently in test cases because PngSuite + * includes a gAMA 1.0 chunk with most images. + */ + red *= 257; + green *= 257; + blue *= 257; + alpha *= 257; + encoding = P_LINEAR; + } + + else if (encoding == P_sRGB && (convert_to_Y || output_encoding == P_LINEAR)) + { + /* The values are 8-bit sRGB values, but must be converted to 16-bit + * linear. + */ + red = png_sRGB_table[red]; + green = png_sRGB_table[green]; + blue = png_sRGB_table[blue]; + alpha *= 257; + encoding = P_LINEAR; + } + + /* This is set if the color isn't gray but the output is. */ + if (encoding == P_LINEAR) + { + if (convert_to_Y != 0) + { + /* NOTE: these values are copied from png_do_rgb_to_gray */ + png_uint_32 y = (png_uint_32)6968 * red + (png_uint_32)23434 * green + + (png_uint_32)2366 * blue; + + if (output_encoding == P_LINEAR) + y = (y + 16384) >> 15; + + else + { + /* y is scaled by 32768, we need it scaled by 255: */ + y = (y + 128) >> 8; + y *= 255; + y = PNG_sRGB_FROM_LINEAR((y + 64) >> 7); + encoding = P_sRGB; + } + + blue = red = green = y; + } + + else if (output_encoding == P_sRGB) + { + red = PNG_sRGB_FROM_LINEAR(red * 255); + green = PNG_sRGB_FROM_LINEAR(green * 255); + blue = PNG_sRGB_FROM_LINEAR(blue * 255); + alpha = PNG_DIV257(alpha); + encoding = P_sRGB; + } + } + + if (encoding != output_encoding) + png_error(image->opaque->png_ptr, "bad encoding (internal error)"); + + /* Store the value. */ + { +# ifdef PNG_FORMAT_AFIRST_SUPPORTED + const int afirst = (image->format & PNG_FORMAT_FLAG_AFIRST) != 0 && + (image->format & PNG_FORMAT_FLAG_ALPHA) != 0; +# else +# define afirst 0 +# endif +# ifdef PNG_FORMAT_BGR_SUPPORTED + const int bgr = (image->format & PNG_FORMAT_FLAG_BGR) ? 2 : 0; +# else +# define bgr 0 +# endif + + if (output_encoding == P_LINEAR) + { + png_uint_16p entry = png_voidcast(png_uint_16p, display->colormap); + + entry += ip * PNG_IMAGE_SAMPLE_CHANNELS(image->format); + + /* The linear 16-bit values must be pre-multiplied by the alpha channel + * value, if less than 65535 (this is, effectively, composite on black + * if the alpha channel is removed.) + */ + switch (PNG_IMAGE_SAMPLE_CHANNELS(image->format)) + { + case 4: + entry[afirst ? 0 : 3] = (png_uint_16)alpha; + /* FALL THROUGH */ + + case 3: + if (alpha < 65535) + { + if (alpha > 0) + { + blue = (blue * alpha + 32767U)/65535U; + green = (green * alpha + 32767U)/65535U; + red = (red * alpha + 32767U)/65535U; + } + + else + red = green = blue = 0; + } + entry[afirst + (2 ^ bgr)] = (png_uint_16)blue; + entry[afirst + 1] = (png_uint_16)green; + entry[afirst + bgr] = (png_uint_16)red; + break; + + case 2: + entry[1 ^ afirst] = (png_uint_16)alpha; + /* FALL THROUGH */ + + case 1: + if (alpha < 65535) + { + if (alpha > 0) + green = (green * alpha + 32767U)/65535U; + + else + green = 0; + } + entry[afirst] = (png_uint_16)green; + break; + + default: + break; + } + } + + else /* output encoding is P_sRGB */ + { + png_bytep entry = png_voidcast(png_bytep, display->colormap); + + entry += ip * PNG_IMAGE_SAMPLE_CHANNELS(image->format); + + switch (PNG_IMAGE_SAMPLE_CHANNELS(image->format)) + { + case 4: + entry[afirst ? 0 : 3] = (png_byte)alpha; + case 3: + entry[afirst + (2 ^ bgr)] = (png_byte)blue; + entry[afirst + 1] = (png_byte)green; + entry[afirst + bgr] = (png_byte)red; + break; + + case 2: + entry[1 ^ afirst] = (png_byte)alpha; + case 1: + entry[afirst] = (png_byte)green; + break; + + default: + break; + } + } + +# ifdef afirst +# undef afirst +# endif +# ifdef bgr +# undef bgr +# endif + } +} + +static int +make_gray_file_colormap(png_image_read_control *display) +{ + unsigned int i; + + for (i=0; i<256; ++i) + png_create_colormap_entry(display, i, i, i, i, 255, P_FILE); + + return i; +} + +static int +make_gray_colormap(png_image_read_control *display) +{ + unsigned int i; + + for (i=0; i<256; ++i) + png_create_colormap_entry(display, i, i, i, i, 255, P_sRGB); + + return i; +} +#define PNG_GRAY_COLORMAP_ENTRIES 256 + +static int +make_ga_colormap(png_image_read_control *display) +{ + unsigned int i, a; + + /* Alpha is retained, the output will be a color-map with entries + * selected by six levels of alpha. One transparent entry, 6 gray + * levels for all the intermediate alpha values, leaving 230 entries + * for the opaque grays. The color-map entries are the six values + * [0..5]*51, the GA processing uses PNG_DIV51(value) to find the + * relevant entry. + * + * if (alpha > 229) // opaque + * { + * // The 231 entries are selected to make the math below work: + * base = 0; + * entry = (231 * gray + 128) >> 8; + * } + * else if (alpha < 26) // transparent + * { + * base = 231; + * entry = 0; + * } + * else // partially opaque + * { + * base = 226 + 6 * PNG_DIV51(alpha); + * entry = PNG_DIV51(gray); + * } + */ + i = 0; + while (i < 231) + { + unsigned int gray = (i * 256 + 115) / 231; + png_create_colormap_entry(display, i++, gray, gray, gray, 255, P_sRGB); + } + + /* 255 is used here for the component values for consistency with the code + * that undoes premultiplication in pngwrite.c. + */ + png_create_colormap_entry(display, i++, 255, 255, 255, 0, P_sRGB); + + for (a=1; a<5; ++a) + { + unsigned int g; + + for (g=0; g<6; ++g) + png_create_colormap_entry(display, i++, g*51, g*51, g*51, a*51, + P_sRGB); + } + + return i; +} + +#define PNG_GA_COLORMAP_ENTRIES 256 + +static int +make_rgb_colormap(png_image_read_control *display) +{ + unsigned int i, r; + + /* Build a 6x6x6 opaque RGB cube */ + for (i=r=0; r<6; ++r) + { + unsigned int g; + + for (g=0; g<6; ++g) + { + unsigned int b; + + for (b=0; b<6; ++b) + png_create_colormap_entry(display, i++, r*51, g*51, b*51, 255, + P_sRGB); + } + } + + return i; +} + +#define PNG_RGB_COLORMAP_ENTRIES 216 + +/* Return a palette index to the above palette given three 8-bit sRGB values. */ +#define PNG_RGB_INDEX(r,g,b) \ + ((png_byte)(6 * (6 * PNG_DIV51(r) + PNG_DIV51(g)) + PNG_DIV51(b))) + +static int +png_image_read_colormap(png_voidp argument) +{ + png_image_read_control *display = + png_voidcast(png_image_read_control*, argument); + const png_imagep image = display->image; + + const png_structrp png_ptr = image->opaque->png_ptr; + const png_uint_32 output_format = image->format; + const int output_encoding = (output_format & PNG_FORMAT_FLAG_LINEAR) ? + P_LINEAR : P_sRGB; + + unsigned int cmap_entries; + unsigned int output_processing; /* Output processing option */ + unsigned int data_encoding = P_NOTSET; /* Encoding libpng must produce */ + + /* Background information; the background color and the index of this color + * in the color-map if it exists (else 256). + */ + unsigned int background_index = 256; + png_uint_32 back_r, back_g, back_b; + + /* Flags to accumulate things that need to be done to the input. */ + int expand_tRNS = 0; + + /* Exclude the NYI feature of compositing onto a color-mapped buffer; it is + * very difficult to do, the results look awful, and it is difficult to see + * what possible use it is because the application can't control the + * color-map. + */ + if (((png_ptr->color_type & PNG_COLOR_MASK_ALPHA) != 0 || + png_ptr->num_trans > 0) /* alpha in input */ && + ((output_format & PNG_FORMAT_FLAG_ALPHA) == 0) /* no alpha in output */) + { + if (output_encoding == P_LINEAR) /* compose on black */ + back_b = back_g = back_r = 0; + + else if (display->background == NULL /* no way to remove it */) + png_error(png_ptr, + "a background color must be supplied to remove alpha/transparency"); + + /* Get a copy of the background color (this avoids repeating the checks + * below.) The encoding is 8-bit sRGB or 16-bit linear, depending on the + * output format. + */ + else + { + back_g = display->background->green; + if (output_format & PNG_FORMAT_FLAG_COLOR) + { + back_r = display->background->red; + back_b = display->background->blue; + } + else + back_b = back_r = back_g; + } + } + + else if (output_encoding == P_LINEAR) + back_b = back_r = back_g = 65535; + + else + back_b = back_r = back_g = 255; + + /* Default the input file gamma if required - this is necessary because + * libpng assumes that if no gamma information is present the data is in the + * output format, but the simplified API deduces the gamma from the input + * format. + */ + if ((png_ptr->colorspace.flags & PNG_COLORSPACE_HAVE_GAMMA) == 0) + { + /* Do this directly, not using the png_colorspace functions, to ensure + * that it happens even if the colorspace is invalid (though probably if + * it is the setting will be ignored) Note that the same thing can be + * achieved at the application interface with png_set_gAMA. + */ + if (png_ptr->bit_depth == 16 && + (image->flags & PNG_IMAGE_FLAG_16BIT_sRGB) == 0) + png_ptr->colorspace.gamma = PNG_GAMMA_LINEAR; + + else + png_ptr->colorspace.gamma = PNG_GAMMA_sRGB_INVERSE; + + png_ptr->colorspace.flags |= PNG_COLORSPACE_HAVE_GAMMA; + } + + /* Decide what to do based on the PNG color type of the input data. The + * utility function png_create_colormap_entry deals with most aspects of the + * output transformations; this code works out how to produce bytes of + * color-map entries from the original format. + */ + switch (png_ptr->color_type) + { + case PNG_COLOR_TYPE_GRAY: + if (png_ptr->bit_depth <= 8) + { + /* There at most 256 colors in the output, regardless of + * transparency. + */ + unsigned int step, i, val, trans = 256/*ignore*/, back_alpha = 0; + + cmap_entries = 1U << png_ptr->bit_depth; + if (cmap_entries > image->colormap_entries) + png_error(png_ptr, "gray[8] color-map: too few entries"); + + step = 255 / (cmap_entries - 1); + output_processing = PNG_CMAP_NONE; + + /* If there is a tRNS chunk then this either selects a transparent + * value or, if the output has no alpha, the background color. + */ + if (png_ptr->num_trans > 0) + { + trans = png_ptr->trans_color.gray; + + if ((output_format & PNG_FORMAT_FLAG_ALPHA) == 0) + back_alpha = output_encoding == P_LINEAR ? 65535 : 255; + } + + /* png_create_colormap_entry just takes an RGBA and writes the + * corresponding color-map entry using the format from 'image', + * including the required conversion to sRGB or linear as + * appropriate. The input values are always either sRGB (if the + * gamma correction flag is 0) or 0..255 scaled file encoded values + * (if the function must gamma correct them). + */ + for (i=val=0; ibit_depth < 8) + png_set_packing(png_ptr); + } + + else /* bit depth is 16 */ + { + /* The 16-bit input values can be converted directly to 8-bit gamma + * encoded values; however, if a tRNS chunk is present 257 color-map + * entries are required. This means that the extra entry requires + * special processing; add an alpha channel, sacrifice gray level + * 254 and convert transparent (alpha==0) entries to that. + * + * Use libpng to chop the data to 8 bits. Convert it to sRGB at the + * same time to minimize quality loss. If a tRNS chunk is present + * this means libpng must handle it too; otherwise it is impossible + * to do the exact match on the 16-bit value. + * + * If the output has no alpha channel *and* the background color is + * gray then it is possible to let libpng handle the substitution by + * ensuring that the corresponding gray level matches the background + * color exactly. + */ + data_encoding = P_sRGB; + + if (PNG_GRAY_COLORMAP_ENTRIES > image->colormap_entries) + png_error(png_ptr, "gray[16] color-map: too few entries"); + + cmap_entries = make_gray_colormap(display); + + if (png_ptr->num_trans > 0) + { + unsigned int back_alpha; + + if (output_format & PNG_FORMAT_FLAG_ALPHA) + back_alpha = 0; + + else + { + if (back_r == back_g && back_g == back_b) + { + /* Background is gray; no special processing will be + * required. + */ + png_color_16 c; + png_uint_32 gray = back_g; + + if (output_encoding == P_LINEAR) + { + gray = PNG_sRGB_FROM_LINEAR(gray * 255); + + /* And make sure the corresponding palette entry + * matches. + */ + png_create_colormap_entry(display, gray, back_g, back_g, + back_g, 65535, P_LINEAR); + } + + /* The background passed to libpng, however, must be the + * sRGB value. + */ + c.index = 0; /*unused*/ + c.gray = c.red = c.green = c.blue = (png_uint_16)gray; + + /* NOTE: does this work without expanding tRNS to alpha? + * It should be the color->gray case below apparently + * doesn't. + */ + png_set_background_fixed(png_ptr, &c, + PNG_BACKGROUND_GAMMA_SCREEN, 0/*need_expand*/, + 0/*gamma: not used*/); + + output_processing = PNG_CMAP_NONE; + break; + } + + back_alpha = output_encoding == P_LINEAR ? 65535 : 255; + } + + /* output_processing means that the libpng-processed row will be + * 8-bit GA and it has to be processing to single byte color-map + * values. Entry 254 is replaced by either a completely + * transparent entry or by the background color at full + * precision (and the background color is not a simple gray leve + * in this case.) + */ + expand_tRNS = 1; + output_processing = PNG_CMAP_TRANS; + background_index = 254; + + /* And set (overwrite) color-map entry 254 to the actual + * background color at full precision. + */ + png_create_colormap_entry(display, 254, back_r, back_g, back_b, + back_alpha, output_encoding); + } + + else + output_processing = PNG_CMAP_NONE; + } + break; + + case PNG_COLOR_TYPE_GRAY_ALPHA: + /* 8-bit or 16-bit PNG with two channels - gray and alpha. A minimum + * of 65536 combinations. If, however, the alpha channel is to be + * removed there are only 256 possibilities if the background is gray. + * (Otherwise there is a subset of the 65536 possibilities defined by + * the triangle between black, white and the background color.) + * + * Reduce 16-bit files to 8-bit and sRGB encode the result. No need to + * worry about tRNS matching - tRNS is ignored if there is an alpha + * channel. + */ + data_encoding = P_sRGB; + + if (output_format & PNG_FORMAT_FLAG_ALPHA) + { + if (PNG_GA_COLORMAP_ENTRIES > image->colormap_entries) + png_error(png_ptr, "gray+alpha color-map: too few entries"); + + cmap_entries = make_ga_colormap(display); + + background_index = PNG_CMAP_GA_BACKGROUND; + output_processing = PNG_CMAP_GA; + } + + else /* alpha is removed */ + { + /* Alpha must be removed as the PNG data is processed when the + * background is a color because the G and A channels are + * independent and the vector addition (non-parallel vectors) is a + * 2-D problem. + * + * This can be reduced to the same algorithm as above by making a + * colormap containing gray levels (for the opaque grays), a + * background entry (for a transparent pixel) and a set of four six + * level color values, one set for each intermediate alpha value. + * See the comments in make_ga_colormap for how this works in the + * per-pixel processing. + * + * If the background is gray, however, we only need a 256 entry gray + * level color map. It is sufficient to make the entry generated + * for the background color be exactly the color specified. + */ + if ((output_format & PNG_FORMAT_FLAG_COLOR) == 0 || + (back_r == back_g && back_g == back_b)) + { + /* Background is gray; no special processing will be required. */ + png_color_16 c; + png_uint_32 gray = back_g; + + if (PNG_GRAY_COLORMAP_ENTRIES > image->colormap_entries) + png_error(png_ptr, "gray-alpha color-map: too few entries"); + + cmap_entries = make_gray_colormap(display); + + if (output_encoding == P_LINEAR) + { + gray = PNG_sRGB_FROM_LINEAR(gray * 255); + + /* And make sure the corresponding palette entry matches. */ + png_create_colormap_entry(display, gray, back_g, back_g, + back_g, 65535, P_LINEAR); + } + + /* The background passed to libpng, however, must be the sRGB + * value. + */ + c.index = 0; /*unused*/ + c.gray = c.red = c.green = c.blue = (png_uint_16)gray; + + png_set_background_fixed(png_ptr, &c, + PNG_BACKGROUND_GAMMA_SCREEN, 0/*need_expand*/, + 0/*gamma: not used*/); + + output_processing = PNG_CMAP_NONE; + } + + else + { + png_uint_32 i, a; + + /* This is the same as png_make_ga_colormap, above, except that + * the entries are all opaque. + */ + if (PNG_GA_COLORMAP_ENTRIES > image->colormap_entries) + png_error(png_ptr, "ga-alpha color-map: too few entries"); + + i = 0; + while (i < 231) + { + png_uint_32 gray = (i * 256 + 115) / 231; + png_create_colormap_entry(display, i++, gray, gray, gray, + 255, P_sRGB); + } + + /* NOTE: this preserves the full precision of the application + * background color. + */ + background_index = i; + png_create_colormap_entry(display, i++, back_r, back_g, back_b, + output_encoding == P_LINEAR ? 65535U : 255U, output_encoding); + + /* For non-opaque input composite on the sRGB background - this + * requires inverting the encoding for each component. The input + * is still converted to the sRGB encoding because this is a + * reasonable approximate to the logarithmic curve of human + * visual sensitivity, at least over the narrow range which PNG + * represents. Consequently 'G' is always sRGB encoded, while + * 'A' is linear. We need the linear background colors. + */ + if (output_encoding == P_sRGB) /* else already linear */ + { + /* This may produce a value not exactly matching the + * background, but that's ok because these numbers are only + * used when alpha != 0 + */ + back_r = png_sRGB_table[back_r]; + back_g = png_sRGB_table[back_g]; + back_b = png_sRGB_table[back_b]; + } + + for (a=1; a<5; ++a) + { + unsigned int g; + + /* PNG_sRGB_FROM_LINEAR expects a 16-bit linear value scaled + * by an 8-bit alpha value (0..255). + */ + png_uint_32 alpha = 51 * a; + png_uint_32 back_rx = (255-alpha) * back_r; + png_uint_32 back_gx = (255-alpha) * back_g; + png_uint_32 back_bx = (255-alpha) * back_b; + + for (g=0; g<6; ++g) + { + png_uint_32 gray = png_sRGB_table[g*51] * alpha; + + png_create_colormap_entry(display, i++, + PNG_sRGB_FROM_LINEAR(gray + back_rx), + PNG_sRGB_FROM_LINEAR(gray + back_gx), + PNG_sRGB_FROM_LINEAR(gray + back_bx), 255, P_sRGB); + } + } + + cmap_entries = i; + output_processing = PNG_CMAP_GA; + } + } + break; + + case PNG_COLOR_TYPE_RGB: + case PNG_COLOR_TYPE_RGB_ALPHA: + /* Exclude the case where the output is gray; we can always handle this + * with the cases above. + */ + if ((output_format & PNG_FORMAT_FLAG_COLOR) == 0) + { + /* The color-map will be grayscale, so we may as well convert the + * input RGB values to a simple grayscale and use the grayscale + * code above. + * + * NOTE: calling this apparently damages the recognition of the + * transparent color in background color handling; call + * png_set_tRNS_to_alpha before png_set_background_fixed. + */ + png_set_rgb_to_gray_fixed(png_ptr, PNG_ERROR_ACTION_NONE, -1, + -1); + data_encoding = P_sRGB; + + /* The output will now be one or two 8-bit gray or gray+alpha + * channels. The more complex case arises when the input has alpha. + */ + if ((png_ptr->color_type == PNG_COLOR_TYPE_RGB_ALPHA || + png_ptr->num_trans > 0) && + (output_format & PNG_FORMAT_FLAG_ALPHA) != 0) + { + /* Both input and output have an alpha channel, so no background + * processing is required; just map the GA bytes to the right + * color-map entry. + */ + expand_tRNS = 1; + + if (PNG_GA_COLORMAP_ENTRIES > image->colormap_entries) + png_error(png_ptr, "rgb[ga] color-map: too few entries"); + + cmap_entries = make_ga_colormap(display); + background_index = PNG_CMAP_GA_BACKGROUND; + output_processing = PNG_CMAP_GA; + } + + else + { + /* Either the input or the output has no alpha channel, so there + * will be no non-opaque pixels in the color-map; it will just be + * grayscale. + */ + if (PNG_GRAY_COLORMAP_ENTRIES > image->colormap_entries) + png_error(png_ptr, "rgb[gray] color-map: too few entries"); + + /* Ideally this code would use libpng to do the gamma correction, + * but if an input alpha channel is to be removed we will hit the + * libpng bug in gamma+compose+rgb-to-gray (the double gamma + * correction bug). Fix this by dropping the gamma correction in + * this case and doing it in the palette; this will result in + * duplicate palette entries, but that's better than the + * alternative of double gamma correction. + */ + if ((png_ptr->color_type == PNG_COLOR_TYPE_RGB_ALPHA || + png_ptr->num_trans > 0) && + png_gamma_not_sRGB(png_ptr->colorspace.gamma)) + { + cmap_entries = make_gray_file_colormap(display); + data_encoding = P_FILE; + } + + else + cmap_entries = make_gray_colormap(display); + + /* But if the input has alpha or transparency it must be removed + */ + if (png_ptr->color_type == PNG_COLOR_TYPE_RGB_ALPHA || + png_ptr->num_trans > 0) + { + png_color_16 c; + png_uint_32 gray = back_g; + + /* We need to ensure that the application background exists in + * the colormap and that completely transparent pixels map to + * it. Achieve this simply by ensuring that the entry + * selected for the background really is the background color. + */ + if (data_encoding == P_FILE) /* from the fixup above */ + { + /* The app supplied a gray which is in output_encoding, we + * need to convert it to a value of the input (P_FILE) + * encoding then set this palette entry to the required + * output encoding. + */ + if (output_encoding == P_sRGB) + gray = png_sRGB_table[gray]; /* now P_LINEAR */ + + gray = PNG_DIV257(png_gamma_16bit_correct(gray, + png_ptr->colorspace.gamma)); /* now P_FILE */ + + /* And make sure the corresponding palette entry contains + * exactly the required sRGB value. + */ + png_create_colormap_entry(display, gray, back_g, back_g, + back_g, 0/*unused*/, output_encoding); + } + + else if (output_encoding == P_LINEAR) + { + gray = PNG_sRGB_FROM_LINEAR(gray * 255); + + /* And make sure the corresponding palette entry matches. + */ + png_create_colormap_entry(display, gray, back_g, back_g, + back_g, 0/*unused*/, P_LINEAR); + } + + /* The background passed to libpng, however, must be the + * output (normally sRGB) value. + */ + c.index = 0; /*unused*/ + c.gray = c.red = c.green = c.blue = (png_uint_16)gray; + + /* NOTE: the following is apparently a bug in libpng. Without + * it the transparent color recognition in + * png_set_background_fixed seems to go wrong. + */ + expand_tRNS = 1; + png_set_background_fixed(png_ptr, &c, + PNG_BACKGROUND_GAMMA_SCREEN, 0/*need_expand*/, + 0/*gamma: not used*/); + } + + output_processing = PNG_CMAP_NONE; + } + } + + else /* output is color */ + { + /* We could use png_quantize here so long as there is no transparent + * color or alpha; png_quantize ignores alpha. Easier overall just + * to do it once and using PNG_DIV51 on the 6x6x6 reduced RGB cube. + * Consequently we always want libpng to produce sRGB data. + */ + data_encoding = P_sRGB; + + /* Is there any transparency or alpha? */ + if (png_ptr->color_type == PNG_COLOR_TYPE_RGB_ALPHA || + png_ptr->num_trans > 0) + { + /* Is there alpha in the output too? If so all four channels are + * processed into a special RGB cube with alpha support. + */ + if (output_format & PNG_FORMAT_FLAG_ALPHA) + { + png_uint_32 r; + + if (PNG_RGB_COLORMAP_ENTRIES+1+27 > image->colormap_entries) + png_error(png_ptr, "rgb+alpha color-map: too few entries"); + + cmap_entries = make_rgb_colormap(display); + + /* Add a transparent entry. */ + png_create_colormap_entry(display, cmap_entries, 255, 255, + 255, 0, P_sRGB); + + /* This is stored as the background index for the processing + * algorithm. + */ + background_index = cmap_entries++; + + /* Add 27 r,g,b entries each with alpha 0.5. */ + for (r=0; r<256; r = (r << 1) | 0x7f) + { + png_uint_32 g; + + for (g=0; g<256; g = (g << 1) | 0x7f) + { + png_uint_32 b; + + /* This generates components with the values 0, 127 and + * 255 + */ + for (b=0; b<256; b = (b << 1) | 0x7f) + png_create_colormap_entry(display, cmap_entries++, + r, g, b, 128, P_sRGB); + } + } + + expand_tRNS = 1; + output_processing = PNG_CMAP_RGB_ALPHA; + } + + else + { + /* Alpha/transparency must be removed. The background must + * exist in the color map (achieved by setting adding it after + * the 666 color-map). If the standard processing code will + * pick up this entry automatically that's all that is + * required; libpng can be called to do the background + * processing. + */ + unsigned int sample_size = + PNG_IMAGE_SAMPLE_SIZE(output_format); + png_uint_32 r, g, b; /* sRGB background */ + + if (PNG_RGB_COLORMAP_ENTRIES+1+27 > image->colormap_entries) + png_error(png_ptr, "rgb-alpha color-map: too few entries"); + + cmap_entries = make_rgb_colormap(display); + + png_create_colormap_entry(display, cmap_entries, back_r, + back_g, back_b, 0/*unused*/, output_encoding); + + if (output_encoding == P_LINEAR) + { + r = PNG_sRGB_FROM_LINEAR(back_r * 255); + g = PNG_sRGB_FROM_LINEAR(back_g * 255); + b = PNG_sRGB_FROM_LINEAR(back_b * 255); + } + + else + { + r = back_r; + g = back_g; + b = back_g; + } + + /* Compare the newly-created color-map entry with the one the + * PNG_CMAP_RGB algorithm will use. If the two entries don't + * match, add the new one and set this as the background + * index. + */ + if (memcmp((png_const_bytep)display->colormap + + sample_size * cmap_entries, + (png_const_bytep)display->colormap + + sample_size * PNG_RGB_INDEX(r,g,b), + sample_size) != 0) + { + /* The background color must be added. */ + background_index = cmap_entries++; + + /* Add 27 r,g,b entries each with created by composing with + * the background at alpha 0.5. + */ + for (r=0; r<256; r = (r << 1) | 0x7f) + { + for (g=0; g<256; g = (g << 1) | 0x7f) + { + /* This generates components with the values 0, 127 + * and 255 + */ + for (b=0; b<256; b = (b << 1) | 0x7f) + png_create_colormap_entry(display, cmap_entries++, + png_colormap_compose(display, r, P_sRGB, 128, + back_r, output_encoding), + png_colormap_compose(display, g, P_sRGB, 128, + back_g, output_encoding), + png_colormap_compose(display, b, P_sRGB, 128, + back_b, output_encoding), + 0/*unused*/, output_encoding); + } + } + + expand_tRNS = 1; + output_processing = PNG_CMAP_RGB_ALPHA; + } + + else /* background color is in the standard color-map */ + { + png_color_16 c; + + c.index = 0; /*unused*/ + c.red = (png_uint_16)back_r; + c.gray = c.green = (png_uint_16)back_g; + c.blue = (png_uint_16)back_b; + + png_set_background_fixed(png_ptr, &c, + PNG_BACKGROUND_GAMMA_SCREEN, 0/*need_expand*/, + 0/*gamma: not used*/); + + output_processing = PNG_CMAP_RGB; + } + } + } + + else /* no alpha or transparency in the input */ + { + /* Alpha in the output is irrelevant, simply map the opaque input + * pixels to the 6x6x6 color-map. + */ + if (PNG_RGB_COLORMAP_ENTRIES > image->colormap_entries) + png_error(png_ptr, "rgb color-map: too few entries"); + + cmap_entries = make_rgb_colormap(display); + output_processing = PNG_CMAP_RGB; + } + } + break; + + case PNG_COLOR_TYPE_PALETTE: + /* It's already got a color-map. It may be necessary to eliminate the + * tRNS entries though. + */ + { + unsigned int num_trans = png_ptr->num_trans; + png_const_bytep trans = num_trans > 0 ? png_ptr->trans_alpha : NULL; + png_const_colorp colormap = png_ptr->palette; + const int do_background = trans != NULL && + (output_format & PNG_FORMAT_FLAG_ALPHA) == 0; + unsigned int i; + + /* Just in case: */ + if (trans == NULL) + num_trans = 0; + + output_processing = PNG_CMAP_NONE; + data_encoding = P_FILE; /* Don't change from color-map indicies */ + cmap_entries = png_ptr->num_palette; + if (cmap_entries > 256) + cmap_entries = 256; + + if (cmap_entries > image->colormap_entries) + png_error(png_ptr, "palette color-map: too few entries"); + + for (i=0; i < cmap_entries; ++i) + { + if (do_background && i < num_trans && trans[i] < 255) + { + if (trans[i] == 0) + png_create_colormap_entry(display, i, back_r, back_g, + back_b, 0, output_encoding); + + else + { + /* Must compose the PNG file color in the color-map entry + * on the sRGB color in 'back'. + */ + png_create_colormap_entry(display, i, + png_colormap_compose(display, colormap[i].red, P_FILE, + trans[i], back_r, output_encoding), + png_colormap_compose(display, colormap[i].green, P_FILE, + trans[i], back_g, output_encoding), + png_colormap_compose(display, colormap[i].blue, P_FILE, + trans[i], back_b, output_encoding), + output_encoding == P_LINEAR ? trans[i] * 257U : + trans[i], + output_encoding); + } + } + + else + png_create_colormap_entry(display, i, colormap[i].red, + colormap[i].green, colormap[i].blue, + i < num_trans ? trans[i] : 255U, P_FILE/*8-bit*/); + } + + /* The PNG data may have indicies packed in fewer than 8 bits, it + * must be expanded if so. + */ + if (png_ptr->bit_depth < 8) + png_set_packing(png_ptr); + } + break; + + default: + png_error(png_ptr, "invalid PNG color type"); + /*NOT REACHED*/ + break; + } + + /* Now deal with the output processing */ + if (expand_tRNS && png_ptr->num_trans > 0 && + (png_ptr->color_type & PNG_COLOR_MASK_ALPHA) == 0) + png_set_tRNS_to_alpha(png_ptr); + + switch (data_encoding) + { + default: + png_error(png_ptr, "bad data option (internal error)"); + break; + + case P_sRGB: + /* Change to 8-bit sRGB */ + png_set_alpha_mode_fixed(png_ptr, PNG_ALPHA_PNG, PNG_GAMMA_sRGB); + /* FALL THROUGH */ + + case P_FILE: + if (png_ptr->bit_depth > 8) + png_set_scale_16(png_ptr); + break; + } + + if (cmap_entries > 256 || cmap_entries > image->colormap_entries) + png_error(png_ptr, "color map overflow (BAD internal error)"); + + image->colormap_entries = cmap_entries; + + /* Double check using the recorded background index */ + switch (output_processing) + { + case PNG_CMAP_NONE: + if (background_index != PNG_CMAP_NONE_BACKGROUND) + goto bad_background; + break; + + case PNG_CMAP_GA: + if (background_index != PNG_CMAP_GA_BACKGROUND) + goto bad_background; + break; + + case PNG_CMAP_TRANS: + if (background_index >= cmap_entries || + background_index != PNG_CMAP_TRANS_BACKGROUND) + goto bad_background; + break; + + case PNG_CMAP_RGB: + if (background_index != PNG_CMAP_RGB_BACKGROUND) + goto bad_background; + break; + + case PNG_CMAP_RGB_ALPHA: + if (background_index != PNG_CMAP_RGB_ALPHA_BACKGROUND) + goto bad_background; + break; + + default: + png_error(png_ptr, "bad processing option (internal error)"); + + bad_background: + png_error(png_ptr, "bad background index (internal error)"); + } + + display->colormap_processing = output_processing; + + return 1/*ok*/; +} + +/* The final part of the color-map read called from png_image_finish_read. */ +static int +png_image_read_and_map(png_voidp argument) +{ + png_image_read_control *display = png_voidcast(png_image_read_control*, + argument); + png_imagep image = display->image; + png_structrp png_ptr = image->opaque->png_ptr; + int passes; + + /* Called when the libpng data must be transformed into the color-mapped + * form. There is a local row buffer in display->local and this routine must + * do the interlace handling. + */ + switch (png_ptr->interlaced) + { + case PNG_INTERLACE_NONE: + passes = 1; + break; + + case PNG_INTERLACE_ADAM7: + passes = PNG_INTERLACE_ADAM7_PASSES; + break; + + default: + png_error(png_ptr, "unknown interlace type"); + } + + { + png_uint_32 height = image->height; + png_uint_32 width = image->width; + int proc = display->colormap_processing; + png_bytep first_row = png_voidcast(png_bytep, display->first_row); + ptrdiff_t step_row = display->row_bytes; + int pass; + + for (pass = 0; pass < passes; ++pass) + { + unsigned int startx, stepx, stepy; + png_uint_32 y; + + if (png_ptr->interlaced == PNG_INTERLACE_ADAM7) + { + /* The row may be empty for a short image: */ + if (PNG_PASS_COLS(width, pass) == 0) + continue; + + startx = PNG_PASS_START_COL(pass); + stepx = PNG_PASS_COL_OFFSET(pass); + y = PNG_PASS_START_ROW(pass); + stepy = PNG_PASS_ROW_OFFSET(pass); + } + + else + { + y = 0; + startx = 0; + stepx = stepy = 1; + } + + for (; ylocal_row); + png_bytep outrow = first_row + y * step_row; + png_const_bytep end_row = outrow + width; + + /* Read read the libpng data into the temporary buffer. */ + png_read_row(png_ptr, inrow, NULL); + + /* Now process the row according to the processing option, note + * that the caller verifies that the format of the libpng output + * data is as required. + */ + outrow += startx; + switch (proc) + { + case PNG_CMAP_GA: + for (; outrow < end_row; outrow += stepx) + { + /* The data is always in the PNG order */ + unsigned int gray = *inrow++; + unsigned int alpha = *inrow++; + unsigned int entry; + + /* NOTE: this code is copied as a comment in + * make_ga_colormap above. Please update the + * comment if you change this code! + */ + if (alpha > 229) /* opaque */ + { + entry = (231 * gray + 128) >> 8; + } + else if (alpha < 26) /* transparent */ + { + entry = 231; + } + else /* partially opaque */ + { + entry = 226 + 6 * PNG_DIV51(alpha) + PNG_DIV51(gray); + } + + *outrow = (png_byte)entry; + } + break; + + case PNG_CMAP_TRANS: + for (; outrow < end_row; outrow += stepx) + { + png_byte gray = *inrow++; + png_byte alpha = *inrow++; + + if (alpha == 0) + *outrow = PNG_CMAP_TRANS_BACKGROUND; + + else if (gray != PNG_CMAP_TRANS_BACKGROUND) + *outrow = gray; + + else + *outrow = (png_byte)(PNG_CMAP_TRANS_BACKGROUND+1); + } + break; + + case PNG_CMAP_RGB: + for (; outrow < end_row; outrow += stepx) + { + *outrow = PNG_RGB_INDEX(inrow[0], inrow[1], inrow[2]); + inrow += 3; + } + break; + + case PNG_CMAP_RGB_ALPHA: + for (; outrow < end_row; outrow += stepx) + { + unsigned int alpha = inrow[3]; + + /* Because the alpha entries only hold alpha==0.5 values + * split the processing at alpha==0.25 (64) and 0.75 + * (196). + */ + + if (alpha >= 196) + *outrow = PNG_RGB_INDEX(inrow[0], inrow[1], + inrow[2]); + + else if (alpha < 64) + *outrow = PNG_CMAP_RGB_ALPHA_BACKGROUND; + + else + { + /* Likewise there are three entries for each of r, g + * and b. We could select the entry by popcount on + * the top two bits on those architectures that + * support it, this is what the code below does, + * crudely. + */ + unsigned int back_i = PNG_CMAP_RGB_ALPHA_BACKGROUND+1; + + /* Here are how the values map: + * + * 0x00 .. 0x3f -> 0 + * 0x40 .. 0xbf -> 1 + * 0xc0 .. 0xff -> 2 + * + * So, as above with the explicit alpha checks, the + * breakpoints are at 64 and 196. + */ + if (inrow[0] & 0x80) back_i += 9; /* red */ + if (inrow[0] & 0x40) back_i += 9; + if (inrow[0] & 0x80) back_i += 3; /* green */ + if (inrow[0] & 0x40) back_i += 3; + if (inrow[0] & 0x80) back_i += 1; /* blue */ + if (inrow[0] & 0x40) back_i += 1; + + *outrow = (png_byte)back_i; + } + + inrow += 4; + } + break; + + default: + break; + } + } + } + } + + return 1; +} + +static int +png_image_read_colormapped(png_voidp argument) +{ + png_image_read_control *display = png_voidcast(png_image_read_control*, + argument); + png_imagep image = display->image; + png_controlp control = image->opaque; + png_structrp png_ptr = control->png_ptr; + png_inforp info_ptr = control->info_ptr; + + int passes = 0; /* As a flag */ + + PNG_SKIP_CHUNKS(png_ptr); + + /* Update the 'info' structure and make sure the result is as required; first + * make sure to turn on the interlace handling if it will be required + * (because it can't be turned on *after* the call to png_read_update_info!) + */ + if (display->colormap_processing == PNG_CMAP_NONE) + passes = png_set_interlace_handling(png_ptr); + + png_read_update_info(png_ptr, info_ptr); + + /* The expected output can be deduced from the colormap_processing option. */ + switch (display->colormap_processing) + { + case PNG_CMAP_NONE: + /* Output must be one channel and one byte per pixel, the output + * encoding can be anything. + */ + if ((info_ptr->color_type == PNG_COLOR_TYPE_PALETTE || + info_ptr->color_type == PNG_COLOR_TYPE_GRAY) && + info_ptr->bit_depth == 8) + break; + + goto bad_output; + + case PNG_CMAP_TRANS: + case PNG_CMAP_GA: + /* Output must be two channels and the 'G' one must be sRGB, the latter + * can be checked with an exact number because it should have been set + * to this number above! + */ + if (info_ptr->color_type == PNG_COLOR_TYPE_GRAY_ALPHA && + info_ptr->bit_depth == 8 && + png_ptr->screen_gamma == PNG_GAMMA_sRGB && + image->colormap_entries == 256) + break; + + goto bad_output; + + case PNG_CMAP_RGB: + /* Output must be 8-bit sRGB encoded RGB */ + if (info_ptr->color_type == PNG_COLOR_TYPE_RGB && + info_ptr->bit_depth == 8 && + png_ptr->screen_gamma == PNG_GAMMA_sRGB && + image->colormap_entries == 216) + break; + + goto bad_output; + + case PNG_CMAP_RGB_ALPHA: + /* Output must be 8-bit sRGB encoded RGBA */ + if (info_ptr->color_type == PNG_COLOR_TYPE_RGB_ALPHA && + info_ptr->bit_depth == 8 && + png_ptr->screen_gamma == PNG_GAMMA_sRGB && + image->colormap_entries == 244 /* 216 + 1 + 27 */) + break; + + /* goto bad_output; */ + /* FALL THROUGH */ + + default: + bad_output: + png_error(png_ptr, "bad color-map processing (internal error)"); + } + + /* Now read the rows. Do this here if it is possible to read directly into + * the output buffer, otherwise allocate a local row buffer of the maximum + * size libpng requires and call the relevant processing routine safely. + */ + { + png_voidp first_row = display->buffer; + ptrdiff_t row_bytes = display->row_stride; + + /* The following expression is designed to work correctly whether it gives + * a signed or an unsigned result. + */ + if (row_bytes < 0) + { + char *ptr = png_voidcast(char*, first_row); + ptr += (image->height-1) * (-row_bytes); + first_row = png_voidcast(png_voidp, ptr); + } + + display->first_row = first_row; + display->row_bytes = row_bytes; + } + + if (passes == 0) + { + int result; + png_voidp row = png_malloc(png_ptr, png_get_rowbytes(png_ptr, info_ptr)); + + display->local_row = row; + result = png_safe_execute(image, png_image_read_and_map, display); + display->local_row = NULL; + png_free(png_ptr, row); + + return result; + } + + else + { + png_alloc_size_t row_bytes = display->row_bytes; + + while (--passes >= 0) + { + png_uint_32 y = image->height; + png_bytep row = png_voidcast(png_bytep, display->first_row); + + while (y-- > 0) + { + png_read_row(png_ptr, row, NULL); + row += row_bytes; + } + } + + return 1; + } +} + +/* Just the row reading part of png_image_read. */ +static int +png_image_read_composite(png_voidp argument) +{ + png_image_read_control *display = png_voidcast(png_image_read_control*, + argument); + png_imagep image = display->image; + png_structrp png_ptr = image->opaque->png_ptr; + int passes; + + switch (png_ptr->interlaced) + { + case PNG_INTERLACE_NONE: + passes = 1; + break; + + case PNG_INTERLACE_ADAM7: + passes = PNG_INTERLACE_ADAM7_PASSES; + break; + + default: + png_error(png_ptr, "unknown interlace type"); + } + + { + png_uint_32 height = image->height; + png_uint_32 width = image->width; + ptrdiff_t step_row = display->row_bytes; + unsigned int channels = (image->format & PNG_FORMAT_FLAG_COLOR) ? 3 : 1; + int pass; + + for (pass = 0; pass < passes; ++pass) + { + unsigned int startx, stepx, stepy; + png_uint_32 y; + + if (png_ptr->interlaced == PNG_INTERLACE_ADAM7) + { + /* The row may be empty for a short image: */ + if (PNG_PASS_COLS(width, pass) == 0) + continue; + + startx = PNG_PASS_START_COL(pass) * channels; + stepx = PNG_PASS_COL_OFFSET(pass) * channels; + y = PNG_PASS_START_ROW(pass); + stepy = PNG_PASS_ROW_OFFSET(pass); + } + + else + { + y = 0; + startx = 0; + stepx = channels; + stepy = 1; + } + + for (; ylocal_row); + png_bytep outrow; + png_const_bytep end_row; + + /* Read the row, which is packed: */ + png_read_row(png_ptr, inrow, NULL); + + outrow = png_voidcast(png_bytep, display->first_row); + outrow += y * step_row; + end_row = outrow + width * channels; + + /* Now do the composition on each pixel in this row. */ + outrow += startx; + for (; outrow < end_row; outrow += stepx) + { + png_byte alpha = inrow[channels]; + + if (alpha > 0) /* else no change to the output */ + { + unsigned int c; + + for (c=0; cimage; + png_structrp png_ptr = image->opaque->png_ptr; + png_inforp info_ptr = image->opaque->info_ptr; + png_uint_32 height = image->height; + png_uint_32 width = image->width; + int pass, passes; + + /* Double check the convoluted logic below. We expect to get here with + * libpng doing rgb to gray and gamma correction but background processing + * left to the png_image_read_background function. The rows libpng produce + * might be 8 or 16-bit but should always have two channels; gray plus alpha. + */ + if ((png_ptr->transformations & PNG_RGB_TO_GRAY) == 0) + png_error(png_ptr, "lost rgb to gray"); + + if ((png_ptr->transformations & PNG_COMPOSE) != 0) + png_error(png_ptr, "unexpected compose"); + + if (png_get_channels(png_ptr, info_ptr) != 2) + png_error(png_ptr, "lost/gained channels"); + + /* Expect the 8-bit case to always remove the alpha channel */ + if ((image->format & PNG_FORMAT_FLAG_LINEAR) == 0 && + (image->format & PNG_FORMAT_FLAG_ALPHA) != 0) + png_error(png_ptr, "unexpected 8-bit transformation"); + + switch (png_ptr->interlaced) + { + case PNG_INTERLACE_NONE: + passes = 1; + break; + + case PNG_INTERLACE_ADAM7: + passes = PNG_INTERLACE_ADAM7_PASSES; + break; + + default: + png_error(png_ptr, "unknown interlace type"); + } + + /* Use direct access to info_ptr here because otherwise the simplified API + * would require PNG_EASY_ACCESS_SUPPORTED (just for this.) Note this is + * checking the value after libpng expansions, not the original value in the + * PNG. + */ + switch (info_ptr->bit_depth) + { + default: + png_error(png_ptr, "unexpected bit depth"); + break; + + case 8: + /* 8-bit sRGB gray values with an alpha channel; the alpha channel is + * to be removed by composing on a background: either the row if + * display->background is NULL or display->background->green if not. + * Unlike the code above ALPHA_OPTIMIZED has *not* been done. + */ + { + png_bytep first_row = png_voidcast(png_bytep, display->first_row); + ptrdiff_t step_row = display->row_bytes; + + for (pass = 0; pass < passes; ++pass) + { + png_bytep row = png_voidcast(png_bytep, + display->first_row); + unsigned int startx, stepx, stepy; + png_uint_32 y; + + if (png_ptr->interlaced == PNG_INTERLACE_ADAM7) + { + /* The row may be empty for a short image: */ + if (PNG_PASS_COLS(width, pass) == 0) + continue; + + startx = PNG_PASS_START_COL(pass); + stepx = PNG_PASS_COL_OFFSET(pass); + y = PNG_PASS_START_ROW(pass); + stepy = PNG_PASS_ROW_OFFSET(pass); + } + + else + { + y = 0; + startx = 0; + stepx = stepy = 1; + } + + if (display->background == NULL) + { + for (; ylocal_row); + png_bytep outrow = first_row + y * step_row; + png_const_bytep end_row = outrow + width; + + /* Read the row, which is packed: */ + png_read_row(png_ptr, inrow, NULL); + + /* Now do the composition on each pixel in this row. */ + outrow += startx; + for (; outrow < end_row; outrow += stepx) + { + png_byte alpha = inrow[1]; + + if (alpha > 0) /* else no change to the output */ + { + png_uint_32 component = inrow[0]; + + if (alpha < 255) /* else just use component */ + { + /* Since PNG_OPTIMIZED_ALPHA was not set it is + * necessary to invert the sRGB transfer + * function and multiply the alpha out. + */ + component = png_sRGB_table[component] * alpha; + component += png_sRGB_table[outrow[0]] * + (255-alpha); + component = PNG_sRGB_FROM_LINEAR(component); + } + + outrow[0] = (png_byte)component; + } + + inrow += 2; /* gray and alpha channel */ + } + } + } + + else /* constant background value */ + { + png_byte background8 = display->background->green; + png_uint_16 background = png_sRGB_table[background8]; + + for (; ylocal_row); + png_bytep outrow = first_row + y * step_row; + png_const_bytep end_row = outrow + width; + + /* Read the row, which is packed: */ + png_read_row(png_ptr, inrow, NULL); + + /* Now do the composition on each pixel in this row. */ + outrow += startx; + for (; outrow < end_row; outrow += stepx) + { + png_byte alpha = inrow[1]; + + if (alpha > 0) /* else use background */ + { + png_uint_32 component = inrow[0]; + + if (alpha < 255) /* else just use component */ + { + component = png_sRGB_table[component] * alpha; + component += background * (255-alpha); + component = PNG_sRGB_FROM_LINEAR(component); + } + + outrow[0] = (png_byte)component; + } + + else + outrow[0] = background8; + + inrow += 2; /* gray and alpha channel */ + } + + row += display->row_bytes; + } + } + } + } + break; + + case 16: + /* 16-bit linear with pre-multiplied alpha; the pre-multiplication must + * still be done and, maybe, the alpha channel removed. This code also + * handles the alpha-first option. + */ + { + png_uint_16p first_row = png_voidcast(png_uint_16p, + display->first_row); + /* The division by two is safe because the caller passed in a + * stride which was multiplied by 2 (below) to get row_bytes. + */ + ptrdiff_t step_row = display->row_bytes / 2; + int preserve_alpha = (image->format & PNG_FORMAT_FLAG_ALPHA) != 0; + unsigned int outchannels = 1+preserve_alpha; + int swap_alpha = 0; + +# ifdef PNG_SIMPLIFIED_READ_AFIRST_SUPPORTED + if (preserve_alpha && (image->format & PNG_FORMAT_FLAG_AFIRST)) + swap_alpha = 1; +# endif + + for (pass = 0; pass < passes; ++pass) + { + unsigned int startx, stepx, stepy; + png_uint_32 y; + + /* The 'x' start and step are adjusted to output components here. + */ + if (png_ptr->interlaced == PNG_INTERLACE_ADAM7) + { + /* The row may be empty for a short image: */ + if (PNG_PASS_COLS(width, pass) == 0) + continue; + + startx = PNG_PASS_START_COL(pass) * outchannels; + stepx = PNG_PASS_COL_OFFSET(pass) * outchannels; + y = PNG_PASS_START_ROW(pass); + stepy = PNG_PASS_ROW_OFFSET(pass); + } + + else + { + y = 0; + startx = 0; + stepx = outchannels; + stepy = 1; + } + + for (; ylocal_row), NULL); + inrow = png_voidcast(png_const_uint_16p, display->local_row); + + /* Now do the pre-multiplication on each pixel in this row. + */ + outrow += startx; + for (; outrow < end_row; outrow += stepx) + { + png_uint_32 component = inrow[0]; + png_uint_16 alpha = inrow[1]; + + if (alpha > 0) /* else 0 */ + { + if (alpha < 65535) /* else just use component */ + { + component *= alpha; + component += 32767; + component /= 65535; + } + } + + else + component = 0; + + outrow[swap_alpha] = (png_uint_16)component; + if (preserve_alpha != 0) + outrow[1 ^ swap_alpha] = alpha; + + inrow += 2; /* components and alpha channel */ + } + } + } + } + break; + } + + return 1; +} + +/* The guts of png_image_finish_read as a png_safe_execute callback. */ +static int +png_image_read_direct(png_voidp argument) +{ + png_image_read_control *display = png_voidcast(png_image_read_control*, + argument); + png_imagep image = display->image; + png_structrp png_ptr = image->opaque->png_ptr; + png_inforp info_ptr = image->opaque->info_ptr; + + png_uint_32 format = image->format; + int linear = (format & PNG_FORMAT_FLAG_LINEAR) != 0; + int do_local_compose = 0; + int do_local_background = 0; /* to avoid double gamma correction bug */ + int passes = 0; + + /* Add transforms to ensure the correct output format is produced then check + * that the required implementation support is there. Always expand; always + * need 8 bits minimum, no palette and expanded tRNS. + */ + png_set_expand(png_ptr); + + /* Now check the format to see if it was modified. */ + { + png_uint_32 base_format = png_image_format(png_ptr) & + ~PNG_FORMAT_FLAG_COLORMAP /* removed by png_set_expand */; + png_uint_32 change = format ^ base_format; + png_fixed_point output_gamma; + int mode; /* alpha mode */ + + /* Do this first so that we have a record if rgb to gray is happening. */ + if (change & PNG_FORMAT_FLAG_COLOR) + { + /* gray<->color transformation required. */ + if (format & PNG_FORMAT_FLAG_COLOR) + png_set_gray_to_rgb(png_ptr); + + else + { + /* libpng can't do both rgb to gray and + * background/pre-multiplication if there is also significant gamma + * correction, because both operations require linear colors and + * the code only supports one transform doing the gamma correction. + * Handle this by doing the pre-multiplication or background + * operation in this code, if necessary. + * + * TODO: fix this by rewriting pngrtran.c (!) + * + * For the moment (given that fixing this in pngrtran.c is an + * enormous change) 'do_local_background' is used to indicate that + * the problem exists. + */ + if (base_format & PNG_FORMAT_FLAG_ALPHA) + do_local_background = 1/*maybe*/; + + png_set_rgb_to_gray_fixed(png_ptr, PNG_ERROR_ACTION_NONE, + PNG_RGB_TO_GRAY_DEFAULT, PNG_RGB_TO_GRAY_DEFAULT); + } + + change &= ~PNG_FORMAT_FLAG_COLOR; + } + + /* Set the gamma appropriately, linear for 16-bit input, sRGB otherwise. + */ + { + png_fixed_point input_gamma_default; + + if ((base_format & PNG_FORMAT_FLAG_LINEAR) && + (image->flags & PNG_IMAGE_FLAG_16BIT_sRGB) == 0) + input_gamma_default = PNG_GAMMA_LINEAR; + else + input_gamma_default = PNG_DEFAULT_sRGB; + + /* Call png_set_alpha_mode to set the default for the input gamma; the + * output gamma is set by a second call below. + */ + png_set_alpha_mode_fixed(png_ptr, PNG_ALPHA_PNG, input_gamma_default); + } + + if (linear != 0) + { + /* If there *is* an alpha channel in the input it must be multiplied + * out; use PNG_ALPHA_STANDARD, otherwise just use PNG_ALPHA_PNG. + */ + if (base_format & PNG_FORMAT_FLAG_ALPHA) + mode = PNG_ALPHA_STANDARD; /* associated alpha */ + + else + mode = PNG_ALPHA_PNG; + + output_gamma = PNG_GAMMA_LINEAR; + } + + else + { + mode = PNG_ALPHA_PNG; + output_gamma = PNG_DEFAULT_sRGB; + } + + /* If 'do_local_background' is set check for the presence of gamma + * correction; this is part of the work-round for the libpng bug + * described above. + * + * TODO: fix libpng and remove this. + */ + if (do_local_background != 0) + { + png_fixed_point gtest; + + /* This is 'png_gamma_threshold' from pngrtran.c; the test used for + * gamma correction, the screen gamma hasn't been set on png_struct + * yet; it's set below. png_struct::gamma, however, is set to the + * final value. + */ + if (png_muldiv(>est, output_gamma, png_ptr->colorspace.gamma, + PNG_FP_1) && !png_gamma_significant(gtest)) + do_local_background = 0; + + else if (mode == PNG_ALPHA_STANDARD) + { + do_local_background = 2/*required*/; + mode = PNG_ALPHA_PNG; /* prevent libpng doing it */ + } + + /* else leave as 1 for the checks below */ + } + + /* If the bit-depth changes then handle that here. */ + if (change & PNG_FORMAT_FLAG_LINEAR) + { + if (linear /*16-bit output*/) + png_set_expand_16(png_ptr); + + else /* 8-bit output */ + png_set_scale_16(png_ptr); + + change &= ~PNG_FORMAT_FLAG_LINEAR; + } + + /* Now the background/alpha channel changes. */ + if (change & PNG_FORMAT_FLAG_ALPHA) + { + /* Removing an alpha channel requires composition for the 8-bit + * formats; for the 16-bit it is already done, above, by the + * pre-multiplication and the channel just needs to be stripped. + */ + if (base_format & PNG_FORMAT_FLAG_ALPHA) + { + /* If RGB->gray is happening the alpha channel must be left and the + * operation completed locally. + * + * TODO: fix libpng and remove this. + */ + if (do_local_background != 0) + do_local_background = 2/*required*/; + + /* 16-bit output: just remove the channel */ + else if (linear != 0) /* compose on black (well, pre-multiply) */ + png_set_strip_alpha(png_ptr); + + /* 8-bit output: do an appropriate compose */ + else if (display->background != NULL) + { + png_color_16 c; + + c.index = 0; /*unused*/ + c.red = display->background->red; + c.green = display->background->green; + c.blue = display->background->blue; + c.gray = display->background->green; + + /* This is always an 8-bit sRGB value, using the 'green' channel + * for gray is much better than calculating the luminance here; + * we can get off-by-one errors in that calculation relative to + * the app expectations and that will show up in transparent + * pixels. + */ + png_set_background_fixed(png_ptr, &c, + PNG_BACKGROUND_GAMMA_SCREEN, 0/*need_expand*/, + 0/*gamma: not used*/); + } + + else /* compose on row: implemented below. */ + { + do_local_compose = 1; + /* This leaves the alpha channel in the output, so it has to be + * removed by the code below. Set the encoding to the 'OPTIMIZE' + * one so the code only has to hack on the pixels that require + * composition. + */ + mode = PNG_ALPHA_OPTIMIZED; + } + } + + else /* output needs an alpha channel */ + { + /* This is tricky because it happens before the swap operation has + * been accomplished; however, the swap does *not* swap the added + * alpha channel (weird API), so it must be added in the correct + * place. + */ + png_uint_32 filler; /* opaque filler */ + int where; + + if (linear != 0) + filler = 65535; + + else + filler = 255; + +# ifdef PNG_FORMAT_AFIRST_SUPPORTED + if (format & PNG_FORMAT_FLAG_AFIRST) + { + where = PNG_FILLER_BEFORE; + change &= ~PNG_FORMAT_FLAG_AFIRST; + } + + else +# endif + where = PNG_FILLER_AFTER; + + png_set_add_alpha(png_ptr, filler, where); + } + + /* This stops the (irrelevant) call to swap_alpha below. */ + change &= ~PNG_FORMAT_FLAG_ALPHA; + } + + /* Now set the alpha mode correctly; this is always done, even if there is + * no alpha channel in either the input or the output because it correctly + * sets the output gamma. + */ + png_set_alpha_mode_fixed(png_ptr, mode, output_gamma); + +# ifdef PNG_FORMAT_BGR_SUPPORTED + if (change & PNG_FORMAT_FLAG_BGR) + { + /* Check only the output format; PNG is never BGR; don't do this if + * the output is gray, but fix up the 'format' value in that case. + */ + if (format & PNG_FORMAT_FLAG_COLOR) + png_set_bgr(png_ptr); + + else + format &= ~PNG_FORMAT_FLAG_BGR; + + change &= ~PNG_FORMAT_FLAG_BGR; + } +# endif + +# ifdef PNG_FORMAT_AFIRST_SUPPORTED + if (change & PNG_FORMAT_FLAG_AFIRST) + { + /* Only relevant if there is an alpha channel - it's particularly + * important to handle this correctly because do_local_compose may + * be set above and then libpng will keep the alpha channel for this + * code to remove. + */ + if (format & PNG_FORMAT_FLAG_ALPHA) + { + /* Disable this if doing a local background, + * TODO: remove this when local background is no longer required. + */ + if (do_local_background != 2) + png_set_swap_alpha(png_ptr); + } + + else + format &= ~PNG_FORMAT_FLAG_AFIRST; + + change &= ~PNG_FORMAT_FLAG_AFIRST; + } +# endif + + /* If the *output* is 16-bit then we need to check for a byte-swap on this + * architecture. + */ + if (linear != 0) + { + PNG_CONST png_uint_16 le = 0x0001; + + if (*(png_const_bytep)&le) + png_set_swap(png_ptr); + } + + /* If change is not now 0 some transformation is missing - error out. */ + if (change != 0) + png_error(png_ptr, "png_read_image: unsupported transformation"); + } + + PNG_SKIP_CHUNKS(png_ptr); + + /* Update the 'info' structure and make sure the result is as required; first + * make sure to turn on the interlace handling if it will be required + * (because it can't be turned on *after* the call to png_read_update_info!) + * + * TODO: remove the do_local_background fixup below. + */ + if (do_local_compose == 0 && do_local_background != 2) + passes = png_set_interlace_handling(png_ptr); + + png_read_update_info(png_ptr, info_ptr); + + { + png_uint_32 info_format = 0; + + if (info_ptr->color_type & PNG_COLOR_MASK_COLOR) + info_format |= PNG_FORMAT_FLAG_COLOR; + + if (info_ptr->color_type & PNG_COLOR_MASK_ALPHA) + { + /* do_local_compose removes this channel below. */ + if (do_local_compose == 0) + { + /* do_local_background does the same if required. */ + if (do_local_background != 2 || + (format & PNG_FORMAT_FLAG_ALPHA) != 0) + info_format |= PNG_FORMAT_FLAG_ALPHA; + } + } + + else if (do_local_compose != 0) /* internal error */ + png_error(png_ptr, "png_image_read: alpha channel lost"); + + if (info_ptr->bit_depth == 16) + info_format |= PNG_FORMAT_FLAG_LINEAR; + +# ifdef PNG_FORMAT_BGR_SUPPORTED + if (png_ptr->transformations & PNG_BGR) + info_format |= PNG_FORMAT_FLAG_BGR; +# endif + +# ifdef PNG_FORMAT_AFIRST_SUPPORTED + if (do_local_background == 2) + { + if (format & PNG_FORMAT_FLAG_AFIRST) + info_format |= PNG_FORMAT_FLAG_AFIRST; + } + + if ((png_ptr->transformations & PNG_SWAP_ALPHA) != 0 || + ((png_ptr->transformations & PNG_ADD_ALPHA) != 0 && + (png_ptr->flags & PNG_FLAG_FILLER_AFTER) == 0)) + { + if (do_local_background == 2) + png_error(png_ptr, "unexpected alpha swap transformation"); + + info_format |= PNG_FORMAT_FLAG_AFIRST; + } +# endif + + /* This is actually an internal error. */ + if (info_format != format) + png_error(png_ptr, "png_read_image: invalid transformations"); + } + + /* Now read the rows. If do_local_compose is set then it is necessary to use + * a local row buffer. The output will be GA, RGBA or BGRA and must be + * converted to G, RGB or BGR as appropriate. The 'local_row' member of the + * display acts as a flag. + */ + { + png_voidp first_row = display->buffer; + ptrdiff_t row_bytes = display->row_stride; + + if (linear != 0) + row_bytes *= 2; + + /* The following expression is designed to work correctly whether it gives + * a signed or an unsigned result. + */ + if (row_bytes < 0) + { + char *ptr = png_voidcast(char*, first_row); + ptr += (image->height-1) * (-row_bytes); + first_row = png_voidcast(png_voidp, ptr); + } + + display->first_row = first_row; + display->row_bytes = row_bytes; + } + + if (do_local_compose != 0) + { + int result; + png_voidp row = png_malloc(png_ptr, png_get_rowbytes(png_ptr, info_ptr)); + + display->local_row = row; + result = png_safe_execute(image, png_image_read_composite, display); + display->local_row = NULL; + png_free(png_ptr, row); + + return result; + } + + else if (do_local_background == 2) + { + int result; + png_voidp row = png_malloc(png_ptr, png_get_rowbytes(png_ptr, info_ptr)); + + display->local_row = row; + result = png_safe_execute(image, png_image_read_background, display); + display->local_row = NULL; + png_free(png_ptr, row); + + return result; + } + + else + { + png_alloc_size_t row_bytes = display->row_bytes; + + while (--passes >= 0) + { + png_uint_32 y = image->height; + png_bytep row = png_voidcast(png_bytep, display->first_row); + + while (y-- > 0) + { + png_read_row(png_ptr, row, NULL); + row += row_bytes; + } + } + + return 1; + } +} + +int PNGAPI +png_image_finish_read(png_imagep image, png_const_colorp background, + void *buffer, png_int_32 row_stride, void *colormap) +{ + if (image != NULL && image->version == PNG_IMAGE_VERSION) + { + png_uint_32 check; + + if (row_stride == 0) + row_stride = PNG_IMAGE_ROW_STRIDE(*image); + + if (row_stride < 0) + check = -row_stride; + + else + check = row_stride; + + if (image->opaque != NULL && buffer != NULL && + check >= PNG_IMAGE_ROW_STRIDE(*image)) + { + if ((image->format & PNG_FORMAT_FLAG_COLORMAP) == 0 || + (image->colormap_entries > 0 && colormap != NULL)) + { + int result; + png_image_read_control display; + + memset(&display, 0, (sizeof display)); + display.image = image; + display.buffer = buffer; + display.row_stride = row_stride; + display.colormap = colormap; + display.background = background; + display.local_row = NULL; + + /* Choose the correct 'end' routine; for the color-map case all the + * setup has already been done. + */ + if (image->format & PNG_FORMAT_FLAG_COLORMAP) + result = + png_safe_execute(image, png_image_read_colormap, &display) && + png_safe_execute(image, png_image_read_colormapped, &display); + + else + result = + png_safe_execute(image, png_image_read_direct, &display); + + png_image_free(image); + return result; + } + + else + return png_image_error(image, + "png_image_finish_read[color-map]: no color-map"); + } + + else + return png_image_error(image, + "png_image_finish_read: invalid argument"); + } + + else if (image != NULL) + return png_image_error(image, + "png_image_finish_read: damaged PNG_IMAGE_VERSION"); + + return 0; +} + +#endif /* PNG_SIMPLIFIED_READ_SUPPORTED */ +#endif /* PNG_READ_SUPPORTED */ diff --git a/png/pngrio.c b/png/pngrio.c new file mode 100644 index 0000000..d75ac5b --- /dev/null +++ b/png/pngrio.c @@ -0,0 +1,120 @@ + +/* pngrio.c - functions for data input + * + * Last changed in libpng 1.6.9 [February 6, 2014] + * Copyright (c) 1998-2014 Glenn Randers-Pehrson + * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) + * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) + * + * This code is released under the libpng license. + * For conditions of distribution and use, see the disclaimer + * and license in png.h + * + * This file provides a location for all input. Users who need + * special handling are expected to write a function that has the same + * arguments as this and performs a similar function, but that possibly + * has a different input method. Note that you shouldn't change this + * function, but rather write a replacement function and then make + * libpng use it at run time with png_set_read_fn(...). + */ + +#include "pngpriv.h" + +#ifdef PNG_READ_SUPPORTED + +/* Read the data from whatever input you are using. The default routine + * reads from a file pointer. Note that this routine sometimes gets called + * with very small lengths, so you should implement some kind of simple + * buffering if you are using unbuffered reads. This should never be asked + * to read more then 64K on a 16 bit machine. + */ +void /* PRIVATE */ +png_read_data(png_structrp png_ptr, png_bytep data, png_size_t length) +{ + png_debug1(4, "reading %d bytes", (int)length); + + if (png_ptr->read_data_fn != NULL) + (*(png_ptr->read_data_fn))(png_ptr, data, length); + + else + png_error(png_ptr, "Call to NULL read function"); +} + +#ifdef PNG_STDIO_SUPPORTED +/* This is the function that does the actual reading of data. If you are + * not reading from a standard C stream, you should create a replacement + * read_data function and use it at run time with png_set_read_fn(), rather + * than changing the library. + */ +void PNGCBAPI +png_default_read_data(png_structp png_ptr, png_bytep data, png_size_t length) +{ + png_size_t check; + + if (png_ptr == NULL) + return; + + /* fread() returns 0 on error, so it is OK to store this in a png_size_t + * instead of an int, which is what fread() actually returns. + */ + check = fread(data, 1, length, png_voidcast(png_FILE_p, png_ptr->io_ptr)); + + if (check != length) + png_error(png_ptr, "Read Error"); +} +#endif + +/* This function allows the application to supply a new input function + * for libpng if standard C streams aren't being used. + * + * This function takes as its arguments: + * + * png_ptr - pointer to a png input data structure + * + * io_ptr - pointer to user supplied structure containing info about + * the input functions. May be NULL. + * + * read_data_fn - pointer to a new input function that takes as its + * arguments a pointer to a png_struct, a pointer to + * a location where input data can be stored, and a 32-bit + * unsigned int that is the number of bytes to be read. + * To exit and output any fatal error messages the new write + * function should call png_error(png_ptr, "Error msg"). + * May be NULL, in which case libpng's default function will + * be used. + */ +void PNGAPI +png_set_read_fn(png_structrp png_ptr, png_voidp io_ptr, + png_rw_ptr read_data_fn) +{ + if (png_ptr == NULL) + return; + + png_ptr->io_ptr = io_ptr; + +#ifdef PNG_STDIO_SUPPORTED + if (read_data_fn != NULL) + png_ptr->read_data_fn = read_data_fn; + + else + png_ptr->read_data_fn = png_default_read_data; +#else + png_ptr->read_data_fn = read_data_fn; +#endif + +#ifdef PNG_WRITE_SUPPORTED + /* It is an error to write to a read device */ + if (png_ptr->write_data_fn != NULL) + { + png_ptr->write_data_fn = NULL; + png_warning(png_ptr, + "Can't set both read_data_fn and write_data_fn in the" + " same structure"); + } +#endif + +#ifdef PNG_WRITE_FLUSH_SUPPORTED + png_ptr->output_flush_fn = NULL; +#endif +} +#endif /* PNG_READ_SUPPORTED */ diff --git a/png/pngrtran.c b/png/pngrtran.c new file mode 100644 index 0000000..5b89423 --- /dev/null +++ b/png/pngrtran.c @@ -0,0 +1,4991 @@ + +/* pngrtran.c - transforms the data in a row for PNG readers + * + * Last changed in libpng 1.6.11 [June 12, 2014] + * Copyright (c) 1998-2014 Glenn Randers-Pehrson + * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) + * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) + * + * This code is released under the libpng license. + * For conditions of distribution and use, see the disclaimer + * and license in png.h + * + * This file contains functions optionally called by an application + * in order to tell libpng how to handle data when reading a PNG. + * Transformations that are used in both reading and writing are + * in pngtrans.c. + */ + +#include "pngpriv.h" + +#ifdef PNG_READ_SUPPORTED + +/* Set the action on getting a CRC error for an ancillary or critical chunk. */ +void PNGAPI +png_set_crc_action(png_structrp png_ptr, int crit_action, int ancil_action) +{ + png_debug(1, "in png_set_crc_action"); + + if (png_ptr == NULL) + return; + + /* Tell libpng how we react to CRC errors in critical chunks */ + switch (crit_action) + { + case PNG_CRC_NO_CHANGE: /* Leave setting as is */ + break; + + case PNG_CRC_WARN_USE: /* Warn/use data */ + png_ptr->flags &= ~PNG_FLAG_CRC_CRITICAL_MASK; + png_ptr->flags |= PNG_FLAG_CRC_CRITICAL_USE; + break; + + case PNG_CRC_QUIET_USE: /* Quiet/use data */ + png_ptr->flags &= ~PNG_FLAG_CRC_CRITICAL_MASK; + png_ptr->flags |= PNG_FLAG_CRC_CRITICAL_USE | + PNG_FLAG_CRC_CRITICAL_IGNORE; + break; + + case PNG_CRC_WARN_DISCARD: /* Not a valid action for critical data */ + png_warning(png_ptr, + "Can't discard critical data on CRC error"); + case PNG_CRC_ERROR_QUIT: /* Error/quit */ + + case PNG_CRC_DEFAULT: + default: + png_ptr->flags &= ~PNG_FLAG_CRC_CRITICAL_MASK; + break; + } + + /* Tell libpng how we react to CRC errors in ancillary chunks */ + switch (ancil_action) + { + case PNG_CRC_NO_CHANGE: /* Leave setting as is */ + break; + + case PNG_CRC_WARN_USE: /* Warn/use data */ + png_ptr->flags &= ~PNG_FLAG_CRC_ANCILLARY_MASK; + png_ptr->flags |= PNG_FLAG_CRC_ANCILLARY_USE; + break; + + case PNG_CRC_QUIET_USE: /* Quiet/use data */ + png_ptr->flags &= ~PNG_FLAG_CRC_ANCILLARY_MASK; + png_ptr->flags |= PNG_FLAG_CRC_ANCILLARY_USE | + PNG_FLAG_CRC_ANCILLARY_NOWARN; + break; + + case PNG_CRC_ERROR_QUIT: /* Error/quit */ + png_ptr->flags &= ~PNG_FLAG_CRC_ANCILLARY_MASK; + png_ptr->flags |= PNG_FLAG_CRC_ANCILLARY_NOWARN; + break; + + case PNG_CRC_WARN_DISCARD: /* Warn/discard data */ + + case PNG_CRC_DEFAULT: + default: + png_ptr->flags &= ~PNG_FLAG_CRC_ANCILLARY_MASK; + break; + } +} + +#ifdef PNG_READ_TRANSFORMS_SUPPORTED +/* Is it OK to set a transformation now? Only if png_start_read_image or + * png_read_update_info have not been called. It is not necessary for the IHDR + * to have been read in all cases, the parameter allows for this check too. + */ +static int +png_rtran_ok(png_structrp png_ptr, int need_IHDR) +{ + if (png_ptr != NULL) + { + if (png_ptr->flags & PNG_FLAG_ROW_INIT) + png_app_error(png_ptr, + "invalid after png_start_read_image or png_read_update_info"); + + else if (need_IHDR && (png_ptr->mode & PNG_HAVE_IHDR) == 0) + png_app_error(png_ptr, "invalid before the PNG header has been read"); + + else + { + /* Turn on failure to initialize correctly for all transforms. */ + png_ptr->flags |= PNG_FLAG_DETECT_UNINITIALIZED; + + return 1; /* Ok */ + } + } + + return 0; /* no png_error possible! */ +} +#endif + +#ifdef PNG_READ_BACKGROUND_SUPPORTED +/* Handle alpha and tRNS via a background color */ +void PNGFAPI +png_set_background_fixed(png_structrp png_ptr, + png_const_color_16p background_color, int background_gamma_code, + int need_expand, png_fixed_point background_gamma) +{ + png_debug(1, "in png_set_background_fixed"); + + if (!png_rtran_ok(png_ptr, 0) || background_color == NULL) + return; + + if (background_gamma_code == PNG_BACKGROUND_GAMMA_UNKNOWN) + { + png_warning(png_ptr, "Application must supply a known background gamma"); + return; + } + + png_ptr->transformations |= PNG_COMPOSE | PNG_STRIP_ALPHA; + png_ptr->transformations &= ~PNG_ENCODE_ALPHA; + png_ptr->flags &= ~PNG_FLAG_OPTIMIZE_ALPHA; + + png_ptr->background = *background_color; + png_ptr->background_gamma = background_gamma; + png_ptr->background_gamma_type = (png_byte)(background_gamma_code); + if (need_expand != 0) + png_ptr->transformations |= PNG_BACKGROUND_EXPAND; + else + png_ptr->transformations &= ~PNG_BACKGROUND_EXPAND; +} + +# ifdef PNG_FLOATING_POINT_SUPPORTED +void PNGAPI +png_set_background(png_structrp png_ptr, + png_const_color_16p background_color, int background_gamma_code, + int need_expand, double background_gamma) +{ + png_set_background_fixed(png_ptr, background_color, background_gamma_code, + need_expand, png_fixed(png_ptr, background_gamma, "png_set_background")); +} +# endif /* FLOATING_POINT */ +#endif /* READ_BACKGROUND */ + +/* Scale 16-bit depth files to 8-bit depth. If both of these are set then the + * one that pngrtran does first (scale) happens. This is necessary to allow the + * TRANSFORM and API behavior to be somewhat consistent, and it's simpler. + */ +#ifdef PNG_READ_SCALE_16_TO_8_SUPPORTED +void PNGAPI +png_set_scale_16(png_structrp png_ptr) +{ + png_debug(1, "in png_set_scale_16"); + + if (!png_rtran_ok(png_ptr, 0)) + return; + + png_ptr->transformations |= PNG_SCALE_16_TO_8; +} +#endif + +#ifdef PNG_READ_STRIP_16_TO_8_SUPPORTED +/* Chop 16-bit depth files to 8-bit depth */ +void PNGAPI +png_set_strip_16(png_structrp png_ptr) +{ + png_debug(1, "in png_set_strip_16"); + + if (!png_rtran_ok(png_ptr, 0)) + return; + + png_ptr->transformations |= PNG_16_TO_8; +} +#endif + +#ifdef PNG_READ_STRIP_ALPHA_SUPPORTED +void PNGAPI +png_set_strip_alpha(png_structrp png_ptr) +{ + png_debug(1, "in png_set_strip_alpha"); + + if (!png_rtran_ok(png_ptr, 0)) + return; + + png_ptr->transformations |= PNG_STRIP_ALPHA; +} +#endif + +#if defined(PNG_READ_ALPHA_MODE_SUPPORTED) || defined(PNG_READ_GAMMA_SUPPORTED) +static png_fixed_point +translate_gamma_flags(png_structrp png_ptr, png_fixed_point output_gamma, + int is_screen) +{ + /* Check for flag values. The main reason for having the old Mac value as a + * flag is that it is pretty near impossible to work out what the correct + * value is from Apple documentation - a working Mac system is needed to + * discover the value! + */ + if (output_gamma == PNG_DEFAULT_sRGB || + output_gamma == PNG_FP_1 / PNG_DEFAULT_sRGB) + { + /* If there is no sRGB support this just sets the gamma to the standard + * sRGB value. (This is a side effect of using this function!) + */ +# ifdef PNG_READ_sRGB_SUPPORTED + png_ptr->flags |= PNG_FLAG_ASSUME_sRGB; +# else + PNG_UNUSED(png_ptr) +# endif + if (is_screen != 0) + output_gamma = PNG_GAMMA_sRGB; + else + output_gamma = PNG_GAMMA_sRGB_INVERSE; + } + + else if (output_gamma == PNG_GAMMA_MAC_18 || + output_gamma == PNG_FP_1 / PNG_GAMMA_MAC_18) + { + if (is_screen != 0) + output_gamma = PNG_GAMMA_MAC_OLD; + else + output_gamma = PNG_GAMMA_MAC_INVERSE; + } + + return output_gamma; +} + +# ifdef PNG_FLOATING_POINT_SUPPORTED +static png_fixed_point +convert_gamma_value(png_structrp png_ptr, double output_gamma) +{ + /* The following silently ignores cases where fixed point (times 100,000) + * gamma values are passed to the floating point API. This is safe and it + * means the fixed point constants work just fine with the floating point + * API. The alternative would just lead to undetected errors and spurious + * bug reports. Negative values fail inside the _fixed API unless they + * correspond to the flag values. + */ + if (output_gamma > 0 && output_gamma < 128) + output_gamma *= PNG_FP_1; + + /* This preserves -1 and -2 exactly: */ + output_gamma = floor(output_gamma + .5); + + if (output_gamma > PNG_FP_MAX || output_gamma < PNG_FP_MIN) + png_fixed_error(png_ptr, "gamma value"); + + return (png_fixed_point)output_gamma; +} +# endif +#endif /* READ_ALPHA_MODE || READ_GAMMA */ + +#ifdef PNG_READ_ALPHA_MODE_SUPPORTED +void PNGFAPI +png_set_alpha_mode_fixed(png_structrp png_ptr, int mode, + png_fixed_point output_gamma) +{ + int compose = 0; + png_fixed_point file_gamma; + + png_debug(1, "in png_set_alpha_mode"); + + if (!png_rtran_ok(png_ptr, 0)) + return; + + output_gamma = translate_gamma_flags(png_ptr, output_gamma, 1/*screen*/); + + /* Validate the value to ensure it is in a reasonable range. The value + * is expected to be 1 or greater, but this range test allows for some + * viewing correction values. The intent is to weed out users of this API + * who use the inverse of the gamma value accidentally! Since some of these + * values are reasonable this may have to be changed. + */ + if (output_gamma < 70000 || output_gamma > 300000) + png_error(png_ptr, "output gamma out of expected range"); + + /* The default file gamma is the inverse of the output gamma; the output + * gamma may be changed below so get the file value first: + */ + file_gamma = png_reciprocal(output_gamma); + + /* There are really 8 possibilities here, composed of any combination + * of: + * + * premultiply the color channels + * do not encode non-opaque pixels + * encode the alpha as well as the color channels + * + * The differences disappear if the input/output ('screen') gamma is 1.0, + * because then the encoding is a no-op and there is only the choice of + * premultiplying the color channels or not. + * + * png_set_alpha_mode and png_set_background interact because both use + * png_compose to do the work. Calling both is only useful when + * png_set_alpha_mode is used to set the default mode - PNG_ALPHA_PNG - along + * with a default gamma value. Otherwise PNG_COMPOSE must not be set. + */ + switch (mode) + { + case PNG_ALPHA_PNG: /* default: png standard */ + /* No compose, but it may be set by png_set_background! */ + png_ptr->transformations &= ~PNG_ENCODE_ALPHA; + png_ptr->flags &= ~PNG_FLAG_OPTIMIZE_ALPHA; + break; + + case PNG_ALPHA_ASSOCIATED: /* color channels premultiplied */ + compose = 1; + png_ptr->transformations &= ~PNG_ENCODE_ALPHA; + png_ptr->flags &= ~PNG_FLAG_OPTIMIZE_ALPHA; + /* The output is linear: */ + output_gamma = PNG_FP_1; + break; + + case PNG_ALPHA_OPTIMIZED: /* associated, non-opaque pixels linear */ + compose = 1; + png_ptr->transformations &= ~PNG_ENCODE_ALPHA; + png_ptr->flags |= PNG_FLAG_OPTIMIZE_ALPHA; + /* output_gamma records the encoding of opaque pixels! */ + break; + + case PNG_ALPHA_BROKEN: /* associated, non-linear, alpha encoded */ + compose = 1; + png_ptr->transformations |= PNG_ENCODE_ALPHA; + png_ptr->flags &= ~PNG_FLAG_OPTIMIZE_ALPHA; + break; + + default: + png_error(png_ptr, "invalid alpha mode"); + } + + /* Only set the default gamma if the file gamma has not been set (this has + * the side effect that the gamma in a second call to png_set_alpha_mode will + * be ignored.) + */ + if (png_ptr->colorspace.gamma == 0) + { + png_ptr->colorspace.gamma = file_gamma; + png_ptr->colorspace.flags |= PNG_COLORSPACE_HAVE_GAMMA; + } + + /* But always set the output gamma: */ + png_ptr->screen_gamma = output_gamma; + + /* Finally, if pre-multiplying, set the background fields to achieve the + * desired result. + */ + if (compose != 0) + { + /* And obtain alpha pre-multiplication by composing on black: */ + memset(&png_ptr->background, 0, (sizeof png_ptr->background)); + png_ptr->background_gamma = png_ptr->colorspace.gamma; /* just in case */ + png_ptr->background_gamma_type = PNG_BACKGROUND_GAMMA_FILE; + png_ptr->transformations &= ~PNG_BACKGROUND_EXPAND; + + if (png_ptr->transformations & PNG_COMPOSE) + png_error(png_ptr, + "conflicting calls to set alpha mode and background"); + + png_ptr->transformations |= PNG_COMPOSE; + } +} + +# ifdef PNG_FLOATING_POINT_SUPPORTED +void PNGAPI +png_set_alpha_mode(png_structrp png_ptr, int mode, double output_gamma) +{ + png_set_alpha_mode_fixed(png_ptr, mode, convert_gamma_value(png_ptr, + output_gamma)); +} +# endif +#endif + +#ifdef PNG_READ_QUANTIZE_SUPPORTED +/* Dither file to 8-bit. Supply a palette, the current number + * of elements in the palette, the maximum number of elements + * allowed, and a histogram if possible. If the current number + * of colors is greater then the maximum number, the palette will be + * modified to fit in the maximum number. "full_quantize" indicates + * whether we need a quantizing cube set up for RGB images, or if we + * simply are reducing the number of colors in a paletted image. + */ + +typedef struct png_dsort_struct +{ + struct png_dsort_struct * next; + png_byte left; + png_byte right; +} png_dsort; +typedef png_dsort * png_dsortp; +typedef png_dsort * * png_dsortpp; + +void PNGAPI +png_set_quantize(png_structrp png_ptr, png_colorp palette, + int num_palette, int maximum_colors, png_const_uint_16p histogram, + int full_quantize) +{ + png_debug(1, "in png_set_quantize"); + + if (!png_rtran_ok(png_ptr, 0)) + return; + + png_ptr->transformations |= PNG_QUANTIZE; + + if (full_quantize == 0) + { + int i; + + png_ptr->quantize_index = (png_bytep)png_malloc(png_ptr, + (png_uint_32)(num_palette * (sizeof (png_byte)))); + for (i = 0; i < num_palette; i++) + png_ptr->quantize_index[i] = (png_byte)i; + } + + if (num_palette > maximum_colors) + { + if (histogram != NULL) + { + /* This is easy enough, just throw out the least used colors. + * Perhaps not the best solution, but good enough. + */ + + int i; + + /* Initialize an array to sort colors */ + png_ptr->quantize_sort = (png_bytep)png_malloc(png_ptr, + (png_uint_32)(num_palette * (sizeof (png_byte)))); + + /* Initialize the quantize_sort array */ + for (i = 0; i < num_palette; i++) + png_ptr->quantize_sort[i] = (png_byte)i; + + /* Find the least used palette entries by starting a + * bubble sort, and running it until we have sorted + * out enough colors. Note that we don't care about + * sorting all the colors, just finding which are + * least used. + */ + + for (i = num_palette - 1; i >= maximum_colors; i--) + { + int done; /* To stop early if the list is pre-sorted */ + int j; + + done = 1; + for (j = 0; j < i; j++) + { + if (histogram[png_ptr->quantize_sort[j]] + < histogram[png_ptr->quantize_sort[j + 1]]) + { + png_byte t; + + t = png_ptr->quantize_sort[j]; + png_ptr->quantize_sort[j] = png_ptr->quantize_sort[j + 1]; + png_ptr->quantize_sort[j + 1] = t; + done = 0; + } + } + + if (done != 0) + break; + } + + /* Swap the palette around, and set up a table, if necessary */ + if (full_quantize != 0) + { + int j = num_palette; + + /* Put all the useful colors within the max, but don't + * move the others. + */ + for (i = 0; i < maximum_colors; i++) + { + if ((int)png_ptr->quantize_sort[i] >= maximum_colors) + { + do + j--; + while ((int)png_ptr->quantize_sort[j] >= maximum_colors); + + palette[i] = palette[j]; + } + } + } + else + { + int j = num_palette; + + /* Move all the used colors inside the max limit, and + * develop a translation table. + */ + for (i = 0; i < maximum_colors; i++) + { + /* Only move the colors we need to */ + if ((int)png_ptr->quantize_sort[i] >= maximum_colors) + { + png_color tmp_color; + + do + j--; + while ((int)png_ptr->quantize_sort[j] >= maximum_colors); + + tmp_color = palette[j]; + palette[j] = palette[i]; + palette[i] = tmp_color; + /* Indicate where the color went */ + png_ptr->quantize_index[j] = (png_byte)i; + png_ptr->quantize_index[i] = (png_byte)j; + } + } + + /* Find closest color for those colors we are not using */ + for (i = 0; i < num_palette; i++) + { + if ((int)png_ptr->quantize_index[i] >= maximum_colors) + { + int min_d, k, min_k, d_index; + + /* Find the closest color to one we threw out */ + d_index = png_ptr->quantize_index[i]; + min_d = PNG_COLOR_DIST(palette[d_index], palette[0]); + for (k = 1, min_k = 0; k < maximum_colors; k++) + { + int d; + + d = PNG_COLOR_DIST(palette[d_index], palette[k]); + + if (d < min_d) + { + min_d = d; + min_k = k; + } + } + /* Point to closest color */ + png_ptr->quantize_index[i] = (png_byte)min_k; + } + } + } + png_free(png_ptr, png_ptr->quantize_sort); + png_ptr->quantize_sort = NULL; + } + else + { + /* This is much harder to do simply (and quickly). Perhaps + * we need to go through a median cut routine, but those + * don't always behave themselves with only a few colors + * as input. So we will just find the closest two colors, + * and throw out one of them (chosen somewhat randomly). + * [We don't understand this at all, so if someone wants to + * work on improving it, be our guest - AED, GRP] + */ + int i; + int max_d; + int num_new_palette; + png_dsortp t; + png_dsortpp hash; + + t = NULL; + + /* Initialize palette index arrays */ + png_ptr->index_to_palette = (png_bytep)png_malloc(png_ptr, + (png_uint_32)(num_palette * (sizeof (png_byte)))); + png_ptr->palette_to_index = (png_bytep)png_malloc(png_ptr, + (png_uint_32)(num_palette * (sizeof (png_byte)))); + + /* Initialize the sort array */ + for (i = 0; i < num_palette; i++) + { + png_ptr->index_to_palette[i] = (png_byte)i; + png_ptr->palette_to_index[i] = (png_byte)i; + } + + hash = (png_dsortpp)png_calloc(png_ptr, (png_uint_32)(769 * + (sizeof (png_dsortp)))); + + num_new_palette = num_palette; + + /* Initial wild guess at how far apart the farthest pixel + * pair we will be eliminating will be. Larger + * numbers mean more areas will be allocated, Smaller + * numbers run the risk of not saving enough data, and + * having to do this all over again. + * + * I have not done extensive checking on this number. + */ + max_d = 96; + + while (num_new_palette > maximum_colors) + { + for (i = 0; i < num_new_palette - 1; i++) + { + int j; + + for (j = i + 1; j < num_new_palette; j++) + { + int d; + + d = PNG_COLOR_DIST(palette[i], palette[j]); + + if (d <= max_d) + { + + t = (png_dsortp)png_malloc_warn(png_ptr, + (png_uint_32)(sizeof (png_dsort))); + + if (t == NULL) + break; + + t->next = hash[d]; + t->left = (png_byte)i; + t->right = (png_byte)j; + hash[d] = t; + } + } + if (t == NULL) + break; + } + + if (t != NULL) + for (i = 0; i <= max_d; i++) + { + if (hash[i] != NULL) + { + png_dsortp p; + + for (p = hash[i]; p; p = p->next) + { + if ((int)png_ptr->index_to_palette[p->left] + < num_new_palette && + (int)png_ptr->index_to_palette[p->right] + < num_new_palette) + { + int j, next_j; + + if (num_new_palette & 0x01) + { + j = p->left; + next_j = p->right; + } + else + { + j = p->right; + next_j = p->left; + } + + num_new_palette--; + palette[png_ptr->index_to_palette[j]] + = palette[num_new_palette]; + if (full_quantize == 0) + { + int k; + + for (k = 0; k < num_palette; k++) + { + if (png_ptr->quantize_index[k] == + png_ptr->index_to_palette[j]) + png_ptr->quantize_index[k] = + png_ptr->index_to_palette[next_j]; + + if ((int)png_ptr->quantize_index[k] == + num_new_palette) + png_ptr->quantize_index[k] = + png_ptr->index_to_palette[j]; + } + } + + png_ptr->index_to_palette[png_ptr->palette_to_index + [num_new_palette]] = png_ptr->index_to_palette[j]; + + png_ptr->palette_to_index[png_ptr->index_to_palette[j]] + = png_ptr->palette_to_index[num_new_palette]; + + png_ptr->index_to_palette[j] = + (png_byte)num_new_palette; + + png_ptr->palette_to_index[num_new_palette] = + (png_byte)j; + } + if (num_new_palette <= maximum_colors) + break; + } + if (num_new_palette <= maximum_colors) + break; + } + } + + for (i = 0; i < 769; i++) + { + if (hash[i] != NULL) + { + png_dsortp p = hash[i]; + while (p) + { + t = p->next; + png_free(png_ptr, p); + p = t; + } + } + hash[i] = 0; + } + max_d += 96; + } + png_free(png_ptr, hash); + png_free(png_ptr, png_ptr->palette_to_index); + png_free(png_ptr, png_ptr->index_to_palette); + png_ptr->palette_to_index = NULL; + png_ptr->index_to_palette = NULL; + } + num_palette = maximum_colors; + } + if (png_ptr->palette == NULL) + { + png_ptr->palette = palette; + } + png_ptr->num_palette = (png_uint_16)num_palette; + + if (full_quantize != 0) + { + int i; + png_bytep distance; + int total_bits = PNG_QUANTIZE_RED_BITS + PNG_QUANTIZE_GREEN_BITS + + PNG_QUANTIZE_BLUE_BITS; + int num_red = (1 << PNG_QUANTIZE_RED_BITS); + int num_green = (1 << PNG_QUANTIZE_GREEN_BITS); + int num_blue = (1 << PNG_QUANTIZE_BLUE_BITS); + png_size_t num_entries = ((png_size_t)1 << total_bits); + + png_ptr->palette_lookup = (png_bytep)png_calloc(png_ptr, + (png_uint_32)(num_entries * (sizeof (png_byte)))); + + distance = (png_bytep)png_malloc(png_ptr, (png_uint_32)(num_entries * + (sizeof (png_byte)))); + + memset(distance, 0xff, num_entries * (sizeof (png_byte))); + + for (i = 0; i < num_palette; i++) + { + int ir, ig, ib; + int r = (palette[i].red >> (8 - PNG_QUANTIZE_RED_BITS)); + int g = (palette[i].green >> (8 - PNG_QUANTIZE_GREEN_BITS)); + int b = (palette[i].blue >> (8 - PNG_QUANTIZE_BLUE_BITS)); + + for (ir = 0; ir < num_red; ir++) + { + /* int dr = abs(ir - r); */ + int dr = ((ir > r) ? ir - r : r - ir); + int index_r = (ir << (PNG_QUANTIZE_BLUE_BITS + + PNG_QUANTIZE_GREEN_BITS)); + + for (ig = 0; ig < num_green; ig++) + { + /* int dg = abs(ig - g); */ + int dg = ((ig > g) ? ig - g : g - ig); + int dt = dr + dg; + int dm = ((dr > dg) ? dr : dg); + int index_g = index_r | (ig << PNG_QUANTIZE_BLUE_BITS); + + for (ib = 0; ib < num_blue; ib++) + { + int d_index = index_g | ib; + /* int db = abs(ib - b); */ + int db = ((ib > b) ? ib - b : b - ib); + int dmax = ((dm > db) ? dm : db); + int d = dmax + dt + db; + + if (d < (int)distance[d_index]) + { + distance[d_index] = (png_byte)d; + png_ptr->palette_lookup[d_index] = (png_byte)i; + } + } + } + } + } + + png_free(png_ptr, distance); + } +} +#endif /* PNG_READ_QUANTIZE_SUPPORTED */ + +#ifdef PNG_READ_GAMMA_SUPPORTED +void PNGFAPI +png_set_gamma_fixed(png_structrp png_ptr, png_fixed_point scrn_gamma, + png_fixed_point file_gamma) +{ + png_debug(1, "in png_set_gamma_fixed"); + + if (!png_rtran_ok(png_ptr, 0)) + return; + + /* New in libpng-1.5.4 - reserve particular negative values as flags. */ + scrn_gamma = translate_gamma_flags(png_ptr, scrn_gamma, 1/*screen*/); + file_gamma = translate_gamma_flags(png_ptr, file_gamma, 0/*file*/); + + /* Checking the gamma values for being >0 was added in 1.5.4 along with the + * premultiplied alpha support; this actually hides an undocumented feature + * of the previous implementation which allowed gamma processing to be + * disabled in background handling. There is no evidence (so far) that this + * was being used; however, png_set_background itself accepted and must still + * accept '0' for the gamma value it takes, because it isn't always used. + * + * Since this is an API change (albeit a very minor one that removes an + * undocumented API feature) the following checks were only enabled in + * libpng-1.6.0. + */ + if (file_gamma <= 0) + png_error(png_ptr, "invalid file gamma in png_set_gamma"); + + if (scrn_gamma <= 0) + png_error(png_ptr, "invalid screen gamma in png_set_gamma"); + + /* Set the gamma values unconditionally - this overrides the value in the PNG + * file if a gAMA chunk was present. png_set_alpha_mode provides a + * different, easier, way to default the file gamma. + */ + png_ptr->colorspace.gamma = file_gamma; + png_ptr->colorspace.flags |= PNG_COLORSPACE_HAVE_GAMMA; + png_ptr->screen_gamma = scrn_gamma; +} + +# ifdef PNG_FLOATING_POINT_SUPPORTED +void PNGAPI +png_set_gamma(png_structrp png_ptr, double scrn_gamma, double file_gamma) +{ + png_set_gamma_fixed(png_ptr, convert_gamma_value(png_ptr, scrn_gamma), + convert_gamma_value(png_ptr, file_gamma)); +} +# endif /* FLOATING_POINT_SUPPORTED */ +#endif /* READ_GAMMA */ + +#ifdef PNG_READ_EXPAND_SUPPORTED +/* Expand paletted images to RGB, expand grayscale images of + * less than 8-bit depth to 8-bit depth, and expand tRNS chunks + * to alpha channels. + */ +void PNGAPI +png_set_expand(png_structrp png_ptr) +{ + png_debug(1, "in png_set_expand"); + + if (!png_rtran_ok(png_ptr, 0)) + return; + + png_ptr->transformations |= (PNG_EXPAND | PNG_EXPAND_tRNS); +} + +/* GRR 19990627: the following three functions currently are identical + * to png_set_expand(). However, it is entirely reasonable that someone + * might wish to expand an indexed image to RGB but *not* expand a single, + * fully transparent palette entry to a full alpha channel--perhaps instead + * convert tRNS to the grayscale/RGB format (16-bit RGB value), or replace + * the transparent color with a particular RGB value, or drop tRNS entirely. + * IOW, a future version of the library may make the transformations flag + * a bit more fine-grained, with separate bits for each of these three + * functions. + * + * More to the point, these functions make it obvious what libpng will be + * doing, whereas "expand" can (and does) mean any number of things. + * + * GRP 20060307: In libpng-1.2.9, png_set_gray_1_2_4_to_8() was modified + * to expand only the sample depth but not to expand the tRNS to alpha + * and its name was changed to png_set_expand_gray_1_2_4_to_8(). + */ + +/* Expand paletted images to RGB. */ +void PNGAPI +png_set_palette_to_rgb(png_structrp png_ptr) +{ + png_debug(1, "in png_set_palette_to_rgb"); + + if (!png_rtran_ok(png_ptr, 0)) + return; + + png_ptr->transformations |= (PNG_EXPAND | PNG_EXPAND_tRNS); +} + +/* Expand grayscale images of less than 8-bit depth to 8 bits. */ +void PNGAPI +png_set_expand_gray_1_2_4_to_8(png_structrp png_ptr) +{ + png_debug(1, "in png_set_expand_gray_1_2_4_to_8"); + + if (!png_rtran_ok(png_ptr, 0)) + return; + + png_ptr->transformations |= PNG_EXPAND; +} + +/* Expand tRNS chunks to alpha channels. */ +void PNGAPI +png_set_tRNS_to_alpha(png_structrp png_ptr) +{ + png_debug(1, "in png_set_tRNS_to_alpha"); + + if (!png_rtran_ok(png_ptr, 0)) + return; + + png_ptr->transformations |= (PNG_EXPAND | PNG_EXPAND_tRNS); +} +#endif /* defined(PNG_READ_EXPAND_SUPPORTED) */ + +#ifdef PNG_READ_EXPAND_16_SUPPORTED +/* Expand to 16-bit channels, expand the tRNS chunk too (because otherwise + * it may not work correctly.) + */ +void PNGAPI +png_set_expand_16(png_structrp png_ptr) +{ + png_debug(1, "in png_set_expand_16"); + + if (!png_rtran_ok(png_ptr, 0)) + return; + + png_ptr->transformations |= (PNG_EXPAND_16 | PNG_EXPAND | PNG_EXPAND_tRNS); +} +#endif + +#ifdef PNG_READ_GRAY_TO_RGB_SUPPORTED +void PNGAPI +png_set_gray_to_rgb(png_structrp png_ptr) +{ + png_debug(1, "in png_set_gray_to_rgb"); + + if (!png_rtran_ok(png_ptr, 0)) + return; + + /* Because rgb must be 8 bits or more: */ + png_set_expand_gray_1_2_4_to_8(png_ptr); + png_ptr->transformations |= PNG_GRAY_TO_RGB; +} +#endif + +#ifdef PNG_READ_RGB_TO_GRAY_SUPPORTED +void PNGFAPI +png_set_rgb_to_gray_fixed(png_structrp png_ptr, int error_action, + png_fixed_point red, png_fixed_point green) +{ + png_debug(1, "in png_set_rgb_to_gray"); + + /* Need the IHDR here because of the check on color_type below. */ + /* TODO: fix this */ + if (!png_rtran_ok(png_ptr, 1)) + return; + + switch(error_action) + { + case PNG_ERROR_ACTION_NONE: + png_ptr->transformations |= PNG_RGB_TO_GRAY; + break; + + case PNG_ERROR_ACTION_WARN: + png_ptr->transformations |= PNG_RGB_TO_GRAY_WARN; + break; + + case PNG_ERROR_ACTION_ERROR: + png_ptr->transformations |= PNG_RGB_TO_GRAY_ERR; + break; + + default: + png_error(png_ptr, "invalid error action to rgb_to_gray"); + break; + } + + if (png_ptr->color_type == PNG_COLOR_TYPE_PALETTE) +#ifdef PNG_READ_EXPAND_SUPPORTED + png_ptr->transformations |= PNG_EXPAND; +#else + { + /* Make this an error in 1.6 because otherwise the application may assume + * that it just worked and get a memory overwrite. + */ + png_error(png_ptr, + "Cannot do RGB_TO_GRAY without EXPAND_SUPPORTED"); + + /* png_ptr->transformations &= ~PNG_RGB_TO_GRAY; */ + } +#endif + { + if (red >= 0 && green >= 0 && red + green <= PNG_FP_1) + { + png_uint_16 red_int, green_int; + + /* NOTE: this calculation does not round, but this behavior is retained + * for consistency, the inaccuracy is very small. The code here always + * overwrites the coefficients, regardless of whether they have been + * defaulted or set already. + */ + red_int = (png_uint_16)(((png_uint_32)red*32768)/100000); + green_int = (png_uint_16)(((png_uint_32)green*32768)/100000); + + png_ptr->rgb_to_gray_red_coeff = red_int; + png_ptr->rgb_to_gray_green_coeff = green_int; + png_ptr->rgb_to_gray_coefficients_set = 1; + } + + else + { + if (red >= 0 && green >= 0) + png_app_warning(png_ptr, + "ignoring out of range rgb_to_gray coefficients"); + + /* Use the defaults, from the cHRM chunk if set, else the historical + * values which are close to the sRGB/HDTV/ITU-Rec 709 values. See + * png_do_rgb_to_gray for more discussion of the values. In this case + * the coefficients are not marked as 'set' and are not overwritten if + * something has already provided a default. + */ + if (png_ptr->rgb_to_gray_red_coeff == 0 && + png_ptr->rgb_to_gray_green_coeff == 0) + { + png_ptr->rgb_to_gray_red_coeff = 6968; + png_ptr->rgb_to_gray_green_coeff = 23434; + /* png_ptr->rgb_to_gray_blue_coeff = 2366; */ + } + } + } +} + +#ifdef PNG_FLOATING_POINT_SUPPORTED +/* Convert a RGB image to a grayscale of the same width. This allows us, + * for example, to convert a 24 bpp RGB image into an 8 bpp grayscale image. + */ + +void PNGAPI +png_set_rgb_to_gray(png_structrp png_ptr, int error_action, double red, + double green) +{ + png_set_rgb_to_gray_fixed(png_ptr, error_action, + png_fixed(png_ptr, red, "rgb to gray red coefficient"), + png_fixed(png_ptr, green, "rgb to gray green coefficient")); +} +#endif /* FLOATING POINT */ + +#endif /* RGB_TO_GRAY */ + +#if defined(PNG_READ_USER_TRANSFORM_SUPPORTED) || \ + defined(PNG_WRITE_USER_TRANSFORM_SUPPORTED) +void PNGAPI +png_set_read_user_transform_fn(png_structrp png_ptr, png_user_transform_ptr + read_user_transform_fn) +{ + png_debug(1, "in png_set_read_user_transform_fn"); + +#ifdef PNG_READ_USER_TRANSFORM_SUPPORTED + png_ptr->transformations |= PNG_USER_TRANSFORM; + png_ptr->read_user_transform_fn = read_user_transform_fn; +#endif +} +#endif + +#ifdef PNG_READ_TRANSFORMS_SUPPORTED +#ifdef PNG_READ_GAMMA_SUPPORTED +/* In the case of gamma transformations only do transformations on images where + * the [file] gamma and screen_gamma are not close reciprocals, otherwise it + * slows things down slightly, and also needlessly introduces small errors. + */ +static int /* PRIVATE */ +png_gamma_threshold(png_fixed_point screen_gamma, png_fixed_point file_gamma) +{ + /* PNG_GAMMA_THRESHOLD is the threshold for performing gamma + * correction as a difference of the overall transform from 1.0 + * + * We want to compare the threshold with s*f - 1, if we get + * overflow here it is because of wacky gamma values so we + * turn on processing anyway. + */ + png_fixed_point gtest; + return !png_muldiv(>est, screen_gamma, file_gamma, PNG_FP_1) || + png_gamma_significant(gtest); +} +#endif + +/* Initialize everything needed for the read. This includes modifying + * the palette. + */ + +/*For the moment 'png_init_palette_transformations' and + * 'png_init_rgb_transformations' only do some flag canceling optimizations. + * The intent is that these two routines should have palette or rgb operations + * extracted from 'png_init_read_transformations'. + */ +static void /* PRIVATE */ +png_init_palette_transformations(png_structrp png_ptr) +{ + /* Called to handle the (input) palette case. In png_do_read_transformations + * the first step is to expand the palette if requested, so this code must + * take care to only make changes that are invariant with respect to the + * palette expansion, or only do them if there is no expansion. + * + * STRIP_ALPHA has already been handled in the caller (by setting num_trans + * to 0.) + */ + int input_has_alpha = 0; + int input_has_transparency = 0; + + if (png_ptr->num_trans > 0) + { + int i; + + /* Ignore if all the entries are opaque (unlikely!) */ + for (i=0; inum_trans; ++i) + { + if (png_ptr->trans_alpha[i] == 255) + continue; + else if (png_ptr->trans_alpha[i] == 0) + input_has_transparency = 1; + else + { + input_has_transparency = 1; + input_has_alpha = 1; + break; + } + } + } + + /* If no alpha we can optimize. */ + if (input_has_alpha == 0) + { + /* Any alpha means background and associative alpha processing is + * required, however if the alpha is 0 or 1 throughout OPTIMIZE_ALPHA + * and ENCODE_ALPHA are irrelevant. + */ + png_ptr->transformations &= ~PNG_ENCODE_ALPHA; + png_ptr->flags &= ~PNG_FLAG_OPTIMIZE_ALPHA; + + if (input_has_transparency == 0) + png_ptr->transformations &= ~(PNG_COMPOSE | PNG_BACKGROUND_EXPAND); + } + +#if defined(PNG_READ_EXPAND_SUPPORTED) && defined(PNG_READ_BACKGROUND_SUPPORTED) + /* png_set_background handling - deals with the complexity of whether the + * background color is in the file format or the screen format in the case + * where an 'expand' will happen. + */ + + /* The following code cannot be entered in the alpha pre-multiplication case + * because PNG_BACKGROUND_EXPAND is cancelled below. + */ + if ((png_ptr->transformations & PNG_BACKGROUND_EXPAND) && + (png_ptr->transformations & PNG_EXPAND)) + { + { + png_ptr->background.red = + png_ptr->palette[png_ptr->background.index].red; + png_ptr->background.green = + png_ptr->palette[png_ptr->background.index].green; + png_ptr->background.blue = + png_ptr->palette[png_ptr->background.index].blue; + +#ifdef PNG_READ_INVERT_ALPHA_SUPPORTED + if (png_ptr->transformations & PNG_INVERT_ALPHA) + { + if (!(png_ptr->transformations & PNG_EXPAND_tRNS)) + { + /* Invert the alpha channel (in tRNS) unless the pixels are + * going to be expanded, in which case leave it for later + */ + int i, istop = png_ptr->num_trans; + + for (i=0; itrans_alpha[i] = (png_byte)(255 - + png_ptr->trans_alpha[i]); + } + } +#endif /* PNG_READ_INVERT_ALPHA_SUPPORTED */ + } + } /* background expand and (therefore) no alpha association. */ +#endif /* PNG_READ_EXPAND_SUPPORTED && PNG_READ_BACKGROUND_SUPPORTED */ +} + +static void /* PRIVATE */ +png_init_rgb_transformations(png_structrp png_ptr) +{ + /* Added to libpng-1.5.4: check the color type to determine whether there + * is any alpha or transparency in the image and simply cancel the + * background and alpha mode stuff if there isn't. + */ + int input_has_alpha = (png_ptr->color_type & PNG_COLOR_MASK_ALPHA) != 0; + int input_has_transparency = png_ptr->num_trans > 0; + + /* If no alpha we can optimize. */ + if (input_has_alpha == 0) + { + /* Any alpha means background and associative alpha processing is + * required, however if the alpha is 0 or 1 throughout OPTIMIZE_ALPHA + * and ENCODE_ALPHA are irrelevant. + */ +# ifdef PNG_READ_ALPHA_MODE_SUPPORTED + png_ptr->transformations &= ~PNG_ENCODE_ALPHA; + png_ptr->flags &= ~PNG_FLAG_OPTIMIZE_ALPHA; +# endif + + if (input_has_transparency == 0) + png_ptr->transformations &= ~(PNG_COMPOSE | PNG_BACKGROUND_EXPAND); + } + +#if defined(PNG_READ_EXPAND_SUPPORTED) && defined(PNG_READ_BACKGROUND_SUPPORTED) + /* png_set_background handling - deals with the complexity of whether the + * background color is in the file format or the screen format in the case + * where an 'expand' will happen. + */ + + /* The following code cannot be entered in the alpha pre-multiplication case + * because PNG_BACKGROUND_EXPAND is cancelled below. + */ + if ((png_ptr->transformations & PNG_BACKGROUND_EXPAND) && + (png_ptr->transformations & PNG_EXPAND) && + !(png_ptr->color_type & PNG_COLOR_MASK_COLOR)) + /* i.e., GRAY or GRAY_ALPHA */ + { + { + /* Expand background and tRNS chunks */ + int gray = png_ptr->background.gray; + int trans_gray = png_ptr->trans_color.gray; + + switch (png_ptr->bit_depth) + { + case 1: + gray *= 0xff; + trans_gray *= 0xff; + break; + + case 2: + gray *= 0x55; + trans_gray *= 0x55; + break; + + case 4: + gray *= 0x11; + trans_gray *= 0x11; + break; + + default: + + case 8: + /* FALL THROUGH (Already 8 bits) */ + + case 16: + /* Already a full 16 bits */ + break; + } + + png_ptr->background.red = png_ptr->background.green = + png_ptr->background.blue = (png_uint_16)gray; + + if (!(png_ptr->transformations & PNG_EXPAND_tRNS)) + { + png_ptr->trans_color.red = png_ptr->trans_color.green = + png_ptr->trans_color.blue = (png_uint_16)trans_gray; + } + } + } /* background expand and (therefore) no alpha association. */ +#endif /* PNG_READ_EXPAND_SUPPORTED && PNG_READ_BACKGROUND_SUPPORTED */ +} + +void /* PRIVATE */ +png_init_read_transformations(png_structrp png_ptr) +{ + png_debug(1, "in png_init_read_transformations"); + + /* This internal function is called from png_read_start_row in pngrutil.c + * and it is called before the 'rowbytes' calculation is done, so the code + * in here can change or update the transformations flags. + * + * First do updates that do not depend on the details of the PNG image data + * being processed. + */ + +#ifdef PNG_READ_GAMMA_SUPPORTED + /* Prior to 1.5.4 these tests were performed from png_set_gamma, 1.5.4 adds + * png_set_alpha_mode and this is another source for a default file gamma so + * the test needs to be performed later - here. In addition prior to 1.5.4 + * the tests were repeated for the PALETTE color type here - this is no + * longer necessary (and doesn't seem to have been necessary before.) + */ + { + /* The following temporary indicates if overall gamma correction is + * required. + */ + int gamma_correction = 0; + + if (png_ptr->colorspace.gamma != 0) /* has been set */ + { + if (png_ptr->screen_gamma != 0) /* screen set too */ + gamma_correction = png_gamma_threshold(png_ptr->colorspace.gamma, + png_ptr->screen_gamma); + + else + /* Assume the output matches the input; a long time default behavior + * of libpng, although the standard has nothing to say about this. + */ + png_ptr->screen_gamma = png_reciprocal(png_ptr->colorspace.gamma); + } + + else if (png_ptr->screen_gamma != 0) + /* The converse - assume the file matches the screen, note that this + * perhaps undesireable default can (from 1.5.4) be changed by calling + * png_set_alpha_mode (even if the alpha handling mode isn't required + * or isn't changed from the default.) + */ + png_ptr->colorspace.gamma = png_reciprocal(png_ptr->screen_gamma); + + else /* neither are set */ + /* Just in case the following prevents any processing - file and screen + * are both assumed to be linear and there is no way to introduce a + * third gamma value other than png_set_background with 'UNIQUE', and, + * prior to 1.5.4 + */ + png_ptr->screen_gamma = png_ptr->colorspace.gamma = PNG_FP_1; + + /* We have a gamma value now. */ + png_ptr->colorspace.flags |= PNG_COLORSPACE_HAVE_GAMMA; + + /* Now turn the gamma transformation on or off as appropriate. Notice + * that PNG_GAMMA just refers to the file->screen correction. Alpha + * composition may independently cause gamma correction because it needs + * linear data (e.g. if the file has a gAMA chunk but the screen gamma + * hasn't been specified.) In any case this flag may get turned off in + * the code immediately below if the transform can be handled outside the + * row loop. + */ + if (gamma_correction != 0) + png_ptr->transformations |= PNG_GAMMA; + + else + png_ptr->transformations &= ~PNG_GAMMA; + } +#endif + + /* Certain transformations have the effect of preventing other + * transformations that happen afterward in png_do_read_transformations, + * resolve the interdependencies here. From the code of + * png_do_read_transformations the order is: + * + * 1) PNG_EXPAND (including PNG_EXPAND_tRNS) + * 2) PNG_STRIP_ALPHA (if no compose) + * 3) PNG_RGB_TO_GRAY + * 4) PNG_GRAY_TO_RGB iff !PNG_BACKGROUND_IS_GRAY + * 5) PNG_COMPOSE + * 6) PNG_GAMMA + * 7) PNG_STRIP_ALPHA (if compose) + * 8) PNG_ENCODE_ALPHA + * 9) PNG_SCALE_16_TO_8 + * 10) PNG_16_TO_8 + * 11) PNG_QUANTIZE (converts to palette) + * 12) PNG_EXPAND_16 + * 13) PNG_GRAY_TO_RGB iff PNG_BACKGROUND_IS_GRAY + * 14) PNG_INVERT_MONO + * 15) PNG_INVERT_ALPHA + * 16) PNG_SHIFT + * 17) PNG_PACK + * 18) PNG_BGR + * 19) PNG_PACKSWAP + * 20) PNG_FILLER (includes PNG_ADD_ALPHA) + * 21) PNG_SWAP_ALPHA + * 22) PNG_SWAP_BYTES + * 23) PNG_USER_TRANSFORM [must be last] + */ +#ifdef PNG_READ_STRIP_ALPHA_SUPPORTED + if ((png_ptr->transformations & PNG_STRIP_ALPHA) && + !(png_ptr->transformations & PNG_COMPOSE)) + { + /* Stripping the alpha channel happens immediately after the 'expand' + * transformations, before all other transformation, so it cancels out + * the alpha handling. It has the side effect negating the effect of + * PNG_EXPAND_tRNS too: + */ + png_ptr->transformations &= ~(PNG_BACKGROUND_EXPAND | PNG_ENCODE_ALPHA | + PNG_EXPAND_tRNS); + png_ptr->flags &= ~PNG_FLAG_OPTIMIZE_ALPHA; + + /* Kill the tRNS chunk itself too. Prior to 1.5.4 this did not happen + * so transparency information would remain just so long as it wasn't + * expanded. This produces unexpected API changes if the set of things + * that do PNG_EXPAND_tRNS changes (perfectly possible given the + * documentation - which says ask for what you want, accept what you + * get.) This makes the behavior consistent from 1.5.4: + */ + png_ptr->num_trans = 0; + } +#endif /* STRIP_ALPHA supported, no COMPOSE */ + +#ifdef PNG_READ_ALPHA_MODE_SUPPORTED + /* If the screen gamma is about 1.0 then the OPTIMIZE_ALPHA and ENCODE_ALPHA + * settings will have no effect. + */ + if (!png_gamma_significant(png_ptr->screen_gamma)) + { + png_ptr->transformations &= ~PNG_ENCODE_ALPHA; + png_ptr->flags &= ~PNG_FLAG_OPTIMIZE_ALPHA; + } +#endif + +#ifdef PNG_READ_RGB_TO_GRAY_SUPPORTED + /* Make sure the coefficients for the rgb to gray conversion are set + * appropriately. + */ + if (png_ptr->transformations & PNG_RGB_TO_GRAY) + png_colorspace_set_rgb_coefficients(png_ptr); +#endif + +#ifdef PNG_READ_GRAY_TO_RGB_SUPPORTED +#if defined(PNG_READ_EXPAND_SUPPORTED) && defined(PNG_READ_BACKGROUND_SUPPORTED) + /* Detect gray background and attempt to enable optimization for + * gray --> RGB case. + * + * Note: if PNG_BACKGROUND_EXPAND is set and color_type is either RGB or + * RGB_ALPHA (in which case need_expand is superfluous anyway), the + * background color might actually be gray yet not be flagged as such. + * This is not a problem for the current code, which uses + * PNG_BACKGROUND_IS_GRAY only to decide when to do the + * png_do_gray_to_rgb() transformation. + * + * TODO: this code needs to be revised to avoid the complexity and + * interdependencies. The color type of the background should be recorded in + * png_set_background, along with the bit depth, then the code has a record + * of exactly what color space the background is currently in. + */ + if (png_ptr->transformations & PNG_BACKGROUND_EXPAND) + { + /* PNG_BACKGROUND_EXPAND: the background is in the file color space, so if + * the file was grayscale the background value is gray. + */ + if (!(png_ptr->color_type & PNG_COLOR_MASK_COLOR)) + png_ptr->mode |= PNG_BACKGROUND_IS_GRAY; + } + + else if (png_ptr->transformations & PNG_COMPOSE) + { + /* PNG_COMPOSE: png_set_background was called with need_expand false, + * so the color is in the color space of the output or png_set_alpha_mode + * was called and the color is black. Ignore RGB_TO_GRAY because that + * happens before GRAY_TO_RGB. + */ + if (png_ptr->transformations & PNG_GRAY_TO_RGB) + { + if (png_ptr->background.red == png_ptr->background.green && + png_ptr->background.red == png_ptr->background.blue) + { + png_ptr->mode |= PNG_BACKGROUND_IS_GRAY; + png_ptr->background.gray = png_ptr->background.red; + } + } + } +#endif /* PNG_READ_EXPAND_SUPPORTED && PNG_READ_BACKGROUND_SUPPORTED */ +#endif /* PNG_READ_GRAY_TO_RGB_SUPPORTED */ + + /* For indexed PNG data (PNG_COLOR_TYPE_PALETTE) many of the transformations + * can be performed directly on the palette, and some (such as rgb to gray) + * can be optimized inside the palette. This is particularly true of the + * composite (background and alpha) stuff, which can be pretty much all done + * in the palette even if the result is expanded to RGB or gray afterward. + * + * NOTE: this is Not Yet Implemented, the code behaves as in 1.5.1 and + * earlier and the palette stuff is actually handled on the first row. This + * leads to the reported bug that the palette returned by png_get_PLTE is not + * updated. + */ + if (png_ptr->color_type == PNG_COLOR_TYPE_PALETTE) + png_init_palette_transformations(png_ptr); + + else + png_init_rgb_transformations(png_ptr); + +#if defined(PNG_READ_BACKGROUND_SUPPORTED) && \ + defined(PNG_READ_EXPAND_16_SUPPORTED) + if ((png_ptr->transformations & PNG_EXPAND_16) && + (png_ptr->transformations & PNG_COMPOSE) && + !(png_ptr->transformations & PNG_BACKGROUND_EXPAND) && + png_ptr->bit_depth != 16) + { + /* TODO: fix this. Because the expand_16 operation is after the compose + * handling the background color must be 8, not 16, bits deep, but the + * application will supply a 16-bit value so reduce it here. + * + * The PNG_BACKGROUND_EXPAND code above does not expand to 16 bits at + * present, so that case is ok (until do_expand_16 is moved.) + * + * NOTE: this discards the low 16 bits of the user supplied background + * color, but until expand_16 works properly there is no choice! + */ +# define CHOP(x) (x)=((png_uint_16)PNG_DIV257(x)) + CHOP(png_ptr->background.red); + CHOP(png_ptr->background.green); + CHOP(png_ptr->background.blue); + CHOP(png_ptr->background.gray); +# undef CHOP + } +#endif /* PNG_READ_BACKGROUND_SUPPORTED && PNG_READ_EXPAND_16_SUPPORTED */ + +#if defined(PNG_READ_BACKGROUND_SUPPORTED) && \ + (defined(PNG_READ_SCALE_16_TO_8_SUPPORTED) || \ + defined(PNG_READ_STRIP_16_TO_8_SUPPORTED)) + if ((png_ptr->transformations & (PNG_16_TO_8|PNG_SCALE_16_TO_8)) && + (png_ptr->transformations & PNG_COMPOSE) && + !(png_ptr->transformations & PNG_BACKGROUND_EXPAND) && + png_ptr->bit_depth == 16) + { + /* On the other hand, if a 16-bit file is to be reduced to 8-bits per + * component this will also happen after PNG_COMPOSE and so the background + * color must be pre-expanded here. + * + * TODO: fix this too. + */ + png_ptr->background.red = (png_uint_16)(png_ptr->background.red * 257); + png_ptr->background.green = + (png_uint_16)(png_ptr->background.green * 257); + png_ptr->background.blue = (png_uint_16)(png_ptr->background.blue * 257); + png_ptr->background.gray = (png_uint_16)(png_ptr->background.gray * 257); + } +#endif + + /* NOTE: below 'PNG_READ_ALPHA_MODE_SUPPORTED' is presumed to also enable the + * background support (see the comments in scripts/pnglibconf.dfa), this + * allows pre-multiplication of the alpha channel to be implemented as + * compositing on black. This is probably sub-optimal and has been done in + * 1.5.4 betas simply to enable external critique and testing (i.e. to + * implement the new API quickly, without lots of internal changes.) + */ + +#ifdef PNG_READ_GAMMA_SUPPORTED +# ifdef PNG_READ_BACKGROUND_SUPPORTED + /* Includes ALPHA_MODE */ + png_ptr->background_1 = png_ptr->background; +# endif + + /* This needs to change - in the palette image case a whole set of tables are + * built when it would be quicker to just calculate the correct value for + * each palette entry directly. Also, the test is too tricky - why check + * PNG_RGB_TO_GRAY if PNG_GAMMA is not set? The answer seems to be that + * PNG_GAMMA is cancelled even if the gamma is known? The test excludes the + * PNG_COMPOSE case, so apparently if there is no *overall* gamma correction + * the gamma tables will not be built even if composition is required on a + * gamma encoded value. + * + * In 1.5.4 this is addressed below by an additional check on the individual + * file gamma - if it is not 1.0 both RGB_TO_GRAY and COMPOSE need the + * tables. + */ + if ((png_ptr->transformations & PNG_GAMMA) + || ((png_ptr->transformations & PNG_RGB_TO_GRAY) + && (png_gamma_significant(png_ptr->colorspace.gamma) || + png_gamma_significant(png_ptr->screen_gamma))) + || ((png_ptr->transformations & PNG_COMPOSE) + && (png_gamma_significant(png_ptr->colorspace.gamma) + || png_gamma_significant(png_ptr->screen_gamma) +# ifdef PNG_READ_BACKGROUND_SUPPORTED + || (png_ptr->background_gamma_type == PNG_BACKGROUND_GAMMA_UNIQUE + && png_gamma_significant(png_ptr->background_gamma)) +# endif + )) || ((png_ptr->transformations & PNG_ENCODE_ALPHA) + && png_gamma_significant(png_ptr->screen_gamma)) + ) + { + png_build_gamma_table(png_ptr, png_ptr->bit_depth); + +#ifdef PNG_READ_BACKGROUND_SUPPORTED + if (png_ptr->transformations & PNG_COMPOSE) + { + /* Issue a warning about this combination: because RGB_TO_GRAY is + * optimized to do the gamma transform if present yet do_background has + * to do the same thing if both options are set a + * double-gamma-correction happens. This is true in all versions of + * libpng to date. + */ + if (png_ptr->transformations & PNG_RGB_TO_GRAY) + png_warning(png_ptr, + "libpng does not support gamma+background+rgb_to_gray"); + + if (png_ptr->color_type == PNG_COLOR_TYPE_PALETTE) + { + /* We don't get to here unless there is a tRNS chunk with non-opaque + * entries - see the checking code at the start of this function. + */ + png_color back, back_1; + png_colorp palette = png_ptr->palette; + int num_palette = png_ptr->num_palette; + int i; + if (png_ptr->background_gamma_type == PNG_BACKGROUND_GAMMA_FILE) + { + + back.red = png_ptr->gamma_table[png_ptr->background.red]; + back.green = png_ptr->gamma_table[png_ptr->background.green]; + back.blue = png_ptr->gamma_table[png_ptr->background.blue]; + + back_1.red = png_ptr->gamma_to_1[png_ptr->background.red]; + back_1.green = png_ptr->gamma_to_1[png_ptr->background.green]; + back_1.blue = png_ptr->gamma_to_1[png_ptr->background.blue]; + } + else + { + png_fixed_point g, gs; + + switch (png_ptr->background_gamma_type) + { + case PNG_BACKGROUND_GAMMA_SCREEN: + g = (png_ptr->screen_gamma); + gs = PNG_FP_1; + break; + + case PNG_BACKGROUND_GAMMA_FILE: + g = png_reciprocal(png_ptr->colorspace.gamma); + gs = png_reciprocal2(png_ptr->colorspace.gamma, + png_ptr->screen_gamma); + break; + + case PNG_BACKGROUND_GAMMA_UNIQUE: + g = png_reciprocal(png_ptr->background_gamma); + gs = png_reciprocal2(png_ptr->background_gamma, + png_ptr->screen_gamma); + break; + default: + g = PNG_FP_1; /* back_1 */ + gs = PNG_FP_1; /* back */ + break; + } + + if (png_gamma_significant(gs)) + { + back.red = png_gamma_8bit_correct(png_ptr->background.red, + gs); + back.green = png_gamma_8bit_correct(png_ptr->background.green, + gs); + back.blue = png_gamma_8bit_correct(png_ptr->background.blue, + gs); + } + + else + { + back.red = (png_byte)png_ptr->background.red; + back.green = (png_byte)png_ptr->background.green; + back.blue = (png_byte)png_ptr->background.blue; + } + + if (png_gamma_significant(g)) + { + back_1.red = png_gamma_8bit_correct(png_ptr->background.red, + g); + back_1.green = png_gamma_8bit_correct( + png_ptr->background.green, g); + back_1.blue = png_gamma_8bit_correct(png_ptr->background.blue, + g); + } + + else + { + back_1.red = (png_byte)png_ptr->background.red; + back_1.green = (png_byte)png_ptr->background.green; + back_1.blue = (png_byte)png_ptr->background.blue; + } + } + + for (i = 0; i < num_palette; i++) + { + if (i < (int)png_ptr->num_trans && + png_ptr->trans_alpha[i] != 0xff) + { + if (png_ptr->trans_alpha[i] == 0) + { + palette[i] = back; + } + else /* if (png_ptr->trans_alpha[i] != 0xff) */ + { + png_byte v, w; + + v = png_ptr->gamma_to_1[palette[i].red]; + png_composite(w, v, png_ptr->trans_alpha[i], back_1.red); + palette[i].red = png_ptr->gamma_from_1[w]; + + v = png_ptr->gamma_to_1[palette[i].green]; + png_composite(w, v, png_ptr->trans_alpha[i], back_1.green); + palette[i].green = png_ptr->gamma_from_1[w]; + + v = png_ptr->gamma_to_1[palette[i].blue]; + png_composite(w, v, png_ptr->trans_alpha[i], back_1.blue); + palette[i].blue = png_ptr->gamma_from_1[w]; + } + } + else + { + palette[i].red = png_ptr->gamma_table[palette[i].red]; + palette[i].green = png_ptr->gamma_table[palette[i].green]; + palette[i].blue = png_ptr->gamma_table[palette[i].blue]; + } + } + + /* Prevent the transformations being done again. + * + * NOTE: this is highly dubious; it removes the transformations in + * place. This seems inconsistent with the general treatment of the + * transformations elsewhere. + */ + png_ptr->transformations &= ~(PNG_COMPOSE | PNG_GAMMA); + } /* color_type == PNG_COLOR_TYPE_PALETTE */ + + /* if (png_ptr->background_gamma_type!=PNG_BACKGROUND_GAMMA_UNKNOWN) */ + else /* color_type != PNG_COLOR_TYPE_PALETTE */ + { + int gs_sig, g_sig; + png_fixed_point g = PNG_FP_1; /* Correction to linear */ + png_fixed_point gs = PNG_FP_1; /* Correction to screen */ + + switch (png_ptr->background_gamma_type) + { + case PNG_BACKGROUND_GAMMA_SCREEN: + g = png_ptr->screen_gamma; + /* gs = PNG_FP_1; */ + break; + + case PNG_BACKGROUND_GAMMA_FILE: + g = png_reciprocal(png_ptr->colorspace.gamma); + gs = png_reciprocal2(png_ptr->colorspace.gamma, + png_ptr->screen_gamma); + break; + + case PNG_BACKGROUND_GAMMA_UNIQUE: + g = png_reciprocal(png_ptr->background_gamma); + gs = png_reciprocal2(png_ptr->background_gamma, + png_ptr->screen_gamma); + break; + + default: + png_error(png_ptr, "invalid background gamma type"); + } + + g_sig = png_gamma_significant(g); + gs_sig = png_gamma_significant(gs); + + if (g_sig != 0) + png_ptr->background_1.gray = png_gamma_correct(png_ptr, + png_ptr->background.gray, g); + + if (gs_sig != 0) + png_ptr->background.gray = png_gamma_correct(png_ptr, + png_ptr->background.gray, gs); + + if ((png_ptr->background.red != png_ptr->background.green) || + (png_ptr->background.red != png_ptr->background.blue) || + (png_ptr->background.red != png_ptr->background.gray)) + { + /* RGB or RGBA with color background */ + if (g_sig != 0) + { + png_ptr->background_1.red = png_gamma_correct(png_ptr, + png_ptr->background.red, g); + + png_ptr->background_1.green = png_gamma_correct(png_ptr, + png_ptr->background.green, g); + + png_ptr->background_1.blue = png_gamma_correct(png_ptr, + png_ptr->background.blue, g); + } + + if (gs_sig != 0) + { + png_ptr->background.red = png_gamma_correct(png_ptr, + png_ptr->background.red, gs); + + png_ptr->background.green = png_gamma_correct(png_ptr, + png_ptr->background.green, gs); + + png_ptr->background.blue = png_gamma_correct(png_ptr, + png_ptr->background.blue, gs); + } + } + + else + { + /* GRAY, GRAY ALPHA, RGB, or RGBA with gray background */ + png_ptr->background_1.red = png_ptr->background_1.green + = png_ptr->background_1.blue = png_ptr->background_1.gray; + + png_ptr->background.red = png_ptr->background.green + = png_ptr->background.blue = png_ptr->background.gray; + } + + /* The background is now in screen gamma: */ + png_ptr->background_gamma_type = PNG_BACKGROUND_GAMMA_SCREEN; + } /* color_type != PNG_COLOR_TYPE_PALETTE */ + }/* png_ptr->transformations & PNG_BACKGROUND */ + + else + /* Transformation does not include PNG_BACKGROUND */ +#endif /* PNG_READ_BACKGROUND_SUPPORTED */ + if (png_ptr->color_type == PNG_COLOR_TYPE_PALETTE +#ifdef PNG_READ_RGB_TO_GRAY_SUPPORTED + /* RGB_TO_GRAY needs to have non-gamma-corrected values! */ + && ((png_ptr->transformations & PNG_EXPAND) == 0 || + (png_ptr->transformations & PNG_RGB_TO_GRAY) == 0) +#endif + ) + { + png_colorp palette = png_ptr->palette; + int num_palette = png_ptr->num_palette; + int i; + + /* NOTE: there are other transformations that should probably be in + * here too. + */ + for (i = 0; i < num_palette; i++) + { + palette[i].red = png_ptr->gamma_table[palette[i].red]; + palette[i].green = png_ptr->gamma_table[palette[i].green]; + palette[i].blue = png_ptr->gamma_table[palette[i].blue]; + } + + /* Done the gamma correction. */ + png_ptr->transformations &= ~PNG_GAMMA; + } /* color_type == PALETTE && !PNG_BACKGROUND transformation */ + } +#ifdef PNG_READ_BACKGROUND_SUPPORTED + else +#endif +#endif /* PNG_READ_GAMMA_SUPPORTED */ + +#ifdef PNG_READ_BACKGROUND_SUPPORTED + /* No GAMMA transformation (see the hanging else 4 lines above) */ + if ((png_ptr->transformations & PNG_COMPOSE) && + (png_ptr->color_type == PNG_COLOR_TYPE_PALETTE)) + { + int i; + int istop = (int)png_ptr->num_trans; + png_color back; + png_colorp palette = png_ptr->palette; + + back.red = (png_byte)png_ptr->background.red; + back.green = (png_byte)png_ptr->background.green; + back.blue = (png_byte)png_ptr->background.blue; + + for (i = 0; i < istop; i++) + { + if (png_ptr->trans_alpha[i] == 0) + { + palette[i] = back; + } + + else if (png_ptr->trans_alpha[i] != 0xff) + { + /* The png_composite() macro is defined in png.h */ + png_composite(palette[i].red, palette[i].red, + png_ptr->trans_alpha[i], back.red); + + png_composite(palette[i].green, palette[i].green, + png_ptr->trans_alpha[i], back.green); + + png_composite(palette[i].blue, palette[i].blue, + png_ptr->trans_alpha[i], back.blue); + } + } + + png_ptr->transformations &= ~PNG_COMPOSE; + } +#endif /* PNG_READ_BACKGROUND_SUPPORTED */ + +#ifdef PNG_READ_SHIFT_SUPPORTED + if ((png_ptr->transformations & PNG_SHIFT) && + !(png_ptr->transformations & PNG_EXPAND) && + (png_ptr->color_type == PNG_COLOR_TYPE_PALETTE)) + { + int i; + int istop = png_ptr->num_palette; + int shift = 8 - png_ptr->sig_bit.red; + + png_ptr->transformations &= ~PNG_SHIFT; + + /* significant bits can be in the range 1 to 7 for a meaninful result, if + * the number of significant bits is 0 then no shift is done (this is an + * error condition which is silently ignored.) + */ + if (shift > 0 && shift < 8) + for (i=0; ipalette[i].red; + + component >>= shift; + png_ptr->palette[i].red = (png_byte)component; + } + + shift = 8 - png_ptr->sig_bit.green; + if (shift > 0 && shift < 8) + for (i=0; ipalette[i].green; + + component >>= shift; + png_ptr->palette[i].green = (png_byte)component; + } + + shift = 8 - png_ptr->sig_bit.blue; + if (shift > 0 && shift < 8) + for (i=0; ipalette[i].blue; + + component >>= shift; + png_ptr->palette[i].blue = (png_byte)component; + } + } +#endif /* PNG_READ_SHIFT_SUPPORTED */ +} + +/* Modify the info structure to reflect the transformations. The + * info should be updated so a PNG file could be written with it, + * assuming the transformations result in valid PNG data. + */ +void /* PRIVATE */ +png_read_transform_info(png_structrp png_ptr, png_inforp info_ptr) +{ + png_debug(1, "in png_read_transform_info"); + +#ifdef PNG_READ_EXPAND_SUPPORTED + if (png_ptr->transformations & PNG_EXPAND) + { + if (info_ptr->color_type == PNG_COLOR_TYPE_PALETTE) + { + /* This check must match what actually happens in + * png_do_expand_palette; if it ever checks the tRNS chunk to see if + * it is all opaque we must do the same (at present it does not.) + */ + if (png_ptr->num_trans > 0) + info_ptr->color_type = PNG_COLOR_TYPE_RGB_ALPHA; + + else + info_ptr->color_type = PNG_COLOR_TYPE_RGB; + + info_ptr->bit_depth = 8; + info_ptr->num_trans = 0; + + if (png_ptr->palette == NULL) + png_error (png_ptr, "Palette is NULL in indexed image"); + } + else + { + if (png_ptr->num_trans) + { + if (png_ptr->transformations & PNG_EXPAND_tRNS) + info_ptr->color_type |= PNG_COLOR_MASK_ALPHA; + } + if (info_ptr->bit_depth < 8) + info_ptr->bit_depth = 8; + + info_ptr->num_trans = 0; + } + } +#endif + +#if defined(PNG_READ_BACKGROUND_SUPPORTED) ||\ + defined(PNG_READ_ALPHA_MODE_SUPPORTED) + /* The following is almost certainly wrong unless the background value is in + * the screen space! + */ + if (png_ptr->transformations & PNG_COMPOSE) + info_ptr->background = png_ptr->background; +#endif + +#ifdef PNG_READ_GAMMA_SUPPORTED + /* The following used to be conditional on PNG_GAMMA (prior to 1.5.4), + * however it seems that the code in png_init_read_transformations, which has + * been called before this from png_read_update_info->png_read_start_row + * sometimes does the gamma transform and cancels the flag. + * + * TODO: this looks wrong; the info_ptr should end up with a gamma equal to + * the screen_gamma value. The following probably results in weirdness if + * the info_ptr is used by the app after the rows have been read. + */ + info_ptr->colorspace.gamma = png_ptr->colorspace.gamma; +#endif + + if (info_ptr->bit_depth == 16) + { +# ifdef PNG_READ_16BIT_SUPPORTED +# ifdef PNG_READ_SCALE_16_TO_8_SUPPORTED + if (png_ptr->transformations & PNG_SCALE_16_TO_8) + info_ptr->bit_depth = 8; +# endif + +# ifdef PNG_READ_STRIP_16_TO_8_SUPPORTED + if (png_ptr->transformations & PNG_16_TO_8) + info_ptr->bit_depth = 8; +# endif + +# else + /* No 16 bit support: force chopping 16-bit input down to 8, in this case + * the app program can chose if both APIs are available by setting the + * correct scaling to use. + */ +# ifdef PNG_READ_STRIP_16_TO_8_SUPPORTED + /* For compatibility with previous versions use the strip method by + * default. This code works because if PNG_SCALE_16_TO_8 is already + * set the code below will do that in preference to the chop. + */ + png_ptr->transformations |= PNG_16_TO_8; + info_ptr->bit_depth = 8; +# else + +# ifdef PNG_READ_SCALE_16_TO_8_SUPPORTED + png_ptr->transformations |= PNG_SCALE_16_TO_8; + info_ptr->bit_depth = 8; +# else + + CONFIGURATION ERROR: you must enable at least one 16 to 8 method +# endif +# endif +#endif /* !READ_16BIT_SUPPORTED */ + } + +#ifdef PNG_READ_GRAY_TO_RGB_SUPPORTED + if (png_ptr->transformations & PNG_GRAY_TO_RGB) + info_ptr->color_type = (png_byte)(info_ptr->color_type | + PNG_COLOR_MASK_COLOR); +#endif + +#ifdef PNG_READ_RGB_TO_GRAY_SUPPORTED + if (png_ptr->transformations & PNG_RGB_TO_GRAY) + info_ptr->color_type = (png_byte)(info_ptr->color_type & + ~PNG_COLOR_MASK_COLOR); +#endif + +#ifdef PNG_READ_QUANTIZE_SUPPORTED + if (png_ptr->transformations & PNG_QUANTIZE) + { + if (((info_ptr->color_type == PNG_COLOR_TYPE_RGB) || + (info_ptr->color_type == PNG_COLOR_TYPE_RGB_ALPHA)) && + png_ptr->palette_lookup && info_ptr->bit_depth == 8) + { + info_ptr->color_type = PNG_COLOR_TYPE_PALETTE; + } + } +#endif + +#ifdef PNG_READ_EXPAND_16_SUPPORTED + if (png_ptr->transformations & PNG_EXPAND_16 && info_ptr->bit_depth == 8 && + info_ptr->color_type != PNG_COLOR_TYPE_PALETTE) + { + info_ptr->bit_depth = 16; + } +#endif + +#ifdef PNG_READ_PACK_SUPPORTED + if ((png_ptr->transformations & PNG_PACK) && (info_ptr->bit_depth < 8)) + info_ptr->bit_depth = 8; +#endif + + if (info_ptr->color_type == PNG_COLOR_TYPE_PALETTE) + info_ptr->channels = 1; + + else if (info_ptr->color_type & PNG_COLOR_MASK_COLOR) + info_ptr->channels = 3; + + else + info_ptr->channels = 1; + +#ifdef PNG_READ_STRIP_ALPHA_SUPPORTED + if (png_ptr->transformations & PNG_STRIP_ALPHA) + { + info_ptr->color_type = (png_byte)(info_ptr->color_type & + ~PNG_COLOR_MASK_ALPHA); + info_ptr->num_trans = 0; + } +#endif + + if (info_ptr->color_type & PNG_COLOR_MASK_ALPHA) + info_ptr->channels++; + +#ifdef PNG_READ_FILLER_SUPPORTED + /* STRIP_ALPHA and FILLER allowed: MASK_ALPHA bit stripped above */ + if ((png_ptr->transformations & PNG_FILLER) && + ((info_ptr->color_type == PNG_COLOR_TYPE_RGB) || + (info_ptr->color_type == PNG_COLOR_TYPE_GRAY))) + { + info_ptr->channels++; + /* If adding a true alpha channel not just filler */ + if (png_ptr->transformations & PNG_ADD_ALPHA) + info_ptr->color_type |= PNG_COLOR_MASK_ALPHA; + } +#endif + +#if defined(PNG_USER_TRANSFORM_PTR_SUPPORTED) && \ +defined(PNG_READ_USER_TRANSFORM_SUPPORTED) + if (png_ptr->transformations & PNG_USER_TRANSFORM) + { + if (info_ptr->bit_depth < png_ptr->user_transform_depth) + info_ptr->bit_depth = png_ptr->user_transform_depth; + + if (info_ptr->channels < png_ptr->user_transform_channels) + info_ptr->channels = png_ptr->user_transform_channels; + } +#endif + + info_ptr->pixel_depth = (png_byte)(info_ptr->channels * + info_ptr->bit_depth); + + info_ptr->rowbytes = PNG_ROWBYTES(info_ptr->pixel_depth, info_ptr->width); + + /* Adding in 1.5.4: cache the above value in png_struct so that we can later + * check in png_rowbytes that the user buffer won't get overwritten. Note + * that the field is not always set - if png_read_update_info isn't called + * the application has to either not do any transforms or get the calculation + * right itself. + */ + png_ptr->info_rowbytes = info_ptr->rowbytes; + +#ifndef PNG_READ_EXPAND_SUPPORTED + if (png_ptr != NULL) + return; +#endif +} + +#ifdef PNG_READ_PACK_SUPPORTED +/* Unpack pixels of 1, 2, or 4 bits per pixel into 1 byte per pixel, + * without changing the actual values. Thus, if you had a row with + * a bit depth of 1, you would end up with bytes that only contained + * the numbers 0 or 1. If you would rather they contain 0 and 255, use + * png_do_shift() after this. + */ +static void +png_do_unpack(png_row_infop row_info, png_bytep row) +{ + png_debug(1, "in png_do_unpack"); + + if (row_info->bit_depth < 8) + { + png_uint_32 i; + png_uint_32 row_width=row_info->width; + + switch (row_info->bit_depth) + { + case 1: + { + png_bytep sp = row + (png_size_t)((row_width - 1) >> 3); + png_bytep dp = row + (png_size_t)row_width - 1; + png_uint_32 shift = 7 - (int)((row_width + 7) & 0x07); + for (i = 0; i < row_width; i++) + { + *dp = (png_byte)((*sp >> shift) & 0x01); + + if (shift == 7) + { + shift = 0; + sp--; + } + + else + shift++; + + dp--; + } + break; + } + + case 2: + { + + png_bytep sp = row + (png_size_t)((row_width - 1) >> 2); + png_bytep dp = row + (png_size_t)row_width - 1; + png_uint_32 shift = (int)((3 - ((row_width + 3) & 0x03)) << 1); + for (i = 0; i < row_width; i++) + { + *dp = (png_byte)((*sp >> shift) & 0x03); + + if (shift == 6) + { + shift = 0; + sp--; + } + + else + shift += 2; + + dp--; + } + break; + } + + case 4: + { + png_bytep sp = row + (png_size_t)((row_width - 1) >> 1); + png_bytep dp = row + (png_size_t)row_width - 1; + png_uint_32 shift = (int)((1 - ((row_width + 1) & 0x01)) << 2); + for (i = 0; i < row_width; i++) + { + *dp = (png_byte)((*sp >> shift) & 0x0f); + + if (shift == 4) + { + shift = 0; + sp--; + } + + else + shift = 4; + + dp--; + } + break; + } + + default: + break; + } + row_info->bit_depth = 8; + row_info->pixel_depth = (png_byte)(8 * row_info->channels); + row_info->rowbytes = row_width * row_info->channels; + } +} +#endif + +#ifdef PNG_READ_SHIFT_SUPPORTED +/* Reverse the effects of png_do_shift. This routine merely shifts the + * pixels back to their significant bits values. Thus, if you have + * a row of bit depth 8, but only 5 are significant, this will shift + * the values back to 0 through 31. + */ +static void +png_do_unshift(png_row_infop row_info, png_bytep row, + png_const_color_8p sig_bits) +{ + int color_type; + + png_debug(1, "in png_do_unshift"); + + /* The palette case has already been handled in the _init routine. */ + color_type = row_info->color_type; + + if (color_type != PNG_COLOR_TYPE_PALETTE) + { + int shift[4]; + int channels = 0; + int bit_depth = row_info->bit_depth; + + if (color_type & PNG_COLOR_MASK_COLOR) + { + shift[channels++] = bit_depth - sig_bits->red; + shift[channels++] = bit_depth - sig_bits->green; + shift[channels++] = bit_depth - sig_bits->blue; + } + + else + { + shift[channels++] = bit_depth - sig_bits->gray; + } + + if (color_type & PNG_COLOR_MASK_ALPHA) + { + shift[channels++] = bit_depth - sig_bits->alpha; + } + + { + int c, have_shift; + + for (c = have_shift = 0; c < channels; ++c) + { + /* A shift of more than the bit depth is an error condition but it + * gets ignored here. + */ + if (shift[c] <= 0 || shift[c] >= bit_depth) + shift[c] = 0; + + else + have_shift = 1; + } + + if (have_shift == 0) + return; + } + + switch (bit_depth) + { + default: + /* Must be 1bpp gray: should not be here! */ + /* NOTREACHED */ + break; + + case 2: + /* Must be 2bpp gray */ + /* assert(channels == 1 && shift[0] == 1) */ + { + png_bytep bp = row; + png_bytep bp_end = bp + row_info->rowbytes; + + while (bp < bp_end) + { + int b = (*bp >> 1) & 0x55; + *bp++ = (png_byte)b; + } + break; + } + + case 4: + /* Must be 4bpp gray */ + /* assert(channels == 1) */ + { + png_bytep bp = row; + png_bytep bp_end = bp + row_info->rowbytes; + int gray_shift = shift[0]; + int mask = 0xf >> gray_shift; + + mask |= mask << 4; + + while (bp < bp_end) + { + int b = (*bp >> gray_shift) & mask; + *bp++ = (png_byte)b; + } + break; + } + + case 8: + /* Single byte components, G, GA, RGB, RGBA */ + { + png_bytep bp = row; + png_bytep bp_end = bp + row_info->rowbytes; + int channel = 0; + + while (bp < bp_end) + { + int b = *bp >> shift[channel]; + if (++channel >= channels) + channel = 0; + *bp++ = (png_byte)b; + } + break; + } + +#ifdef PNG_READ_16BIT_SUPPORTED + case 16: + /* Double byte components, G, GA, RGB, RGBA */ + { + png_bytep bp = row; + png_bytep bp_end = bp + row_info->rowbytes; + int channel = 0; + + while (bp < bp_end) + { + int value = (bp[0] << 8) + bp[1]; + + value >>= shift[channel]; + if (++channel >= channels) + channel = 0; + *bp++ = (png_byte)(value >> 8); + *bp++ = (png_byte)(value & 0xff); + } + break; + } +#endif + } + } +} +#endif + +#ifdef PNG_READ_SCALE_16_TO_8_SUPPORTED +/* Scale rows of bit depth 16 down to 8 accurately */ +static void +png_do_scale_16_to_8(png_row_infop row_info, png_bytep row) +{ + png_debug(1, "in png_do_scale_16_to_8"); + + if (row_info->bit_depth == 16) + { + png_bytep sp = row; /* source */ + png_bytep dp = row; /* destination */ + png_bytep ep = sp + row_info->rowbytes; /* end+1 */ + + while (sp < ep) + { + /* The input is an array of 16 bit components, these must be scaled to + * 8 bits each. For a 16 bit value V the required value (from the PNG + * specification) is: + * + * (V * 255) / 65535 + * + * This reduces to round(V / 257), or floor((V + 128.5)/257) + * + * Represent V as the two byte value vhi.vlo. Make a guess that the + * result is the top byte of V, vhi, then the correction to this value + * is: + * + * error = floor(((V-vhi.vhi) + 128.5) / 257) + * = floor(((vlo-vhi) + 128.5) / 257) + * + * This can be approximated using integer arithmetic (and a signed + * shift): + * + * error = (vlo-vhi+128) >> 8; + * + * The approximate differs from the exact answer only when (vlo-vhi) is + * 128; it then gives a correction of +1 when the exact correction is + * 0. This gives 128 errors. The exact answer (correct for all 16 bit + * input values) is: + * + * error = (vlo-vhi+128)*65535 >> 24; + * + * An alternative arithmetic calculation which also gives no errors is: + * + * (V * 255 + 32895) >> 16 + */ + + png_int_32 tmp = *sp++; /* must be signed! */ + tmp += (((int)*sp++ - tmp + 128) * 65535) >> 24; + *dp++ = (png_byte)tmp; + } + + row_info->bit_depth = 8; + row_info->pixel_depth = (png_byte)(8 * row_info->channels); + row_info->rowbytes = row_info->width * row_info->channels; + } +} +#endif + +#ifdef PNG_READ_STRIP_16_TO_8_SUPPORTED +static void +/* Simply discard the low byte. This was the default behavior prior + * to libpng-1.5.4. + */ +png_do_chop(png_row_infop row_info, png_bytep row) +{ + png_debug(1, "in png_do_chop"); + + if (row_info->bit_depth == 16) + { + png_bytep sp = row; /* source */ + png_bytep dp = row; /* destination */ + png_bytep ep = sp + row_info->rowbytes; /* end+1 */ + + while (sp < ep) + { + *dp++ = *sp; + sp += 2; /* skip low byte */ + } + + row_info->bit_depth = 8; + row_info->pixel_depth = (png_byte)(8 * row_info->channels); + row_info->rowbytes = row_info->width * row_info->channels; + } +} +#endif + +#ifdef PNG_READ_SWAP_ALPHA_SUPPORTED +static void +png_do_read_swap_alpha(png_row_infop row_info, png_bytep row) +{ + png_debug(1, "in png_do_read_swap_alpha"); + + { + png_uint_32 row_width = row_info->width; + if (row_info->color_type == PNG_COLOR_TYPE_RGB_ALPHA) + { + /* This converts from RGBA to ARGB */ + if (row_info->bit_depth == 8) + { + png_bytep sp = row + row_info->rowbytes; + png_bytep dp = sp; + png_byte save; + png_uint_32 i; + + for (i = 0; i < row_width; i++) + { + save = *(--sp); + *(--dp) = *(--sp); + *(--dp) = *(--sp); + *(--dp) = *(--sp); + *(--dp) = save; + } + } + +#ifdef PNG_READ_16BIT_SUPPORTED + /* This converts from RRGGBBAA to AARRGGBB */ + else + { + png_bytep sp = row + row_info->rowbytes; + png_bytep dp = sp; + png_byte save[2]; + png_uint_32 i; + + for (i = 0; i < row_width; i++) + { + save[0] = *(--sp); + save[1] = *(--sp); + *(--dp) = *(--sp); + *(--dp) = *(--sp); + *(--dp) = *(--sp); + *(--dp) = *(--sp); + *(--dp) = *(--sp); + *(--dp) = *(--sp); + *(--dp) = save[0]; + *(--dp) = save[1]; + } + } +#endif + } + + else if (row_info->color_type == PNG_COLOR_TYPE_GRAY_ALPHA) + { + /* This converts from GA to AG */ + if (row_info->bit_depth == 8) + { + png_bytep sp = row + row_info->rowbytes; + png_bytep dp = sp; + png_byte save; + png_uint_32 i; + + for (i = 0; i < row_width; i++) + { + save = *(--sp); + *(--dp) = *(--sp); + *(--dp) = save; + } + } + +#ifdef PNG_READ_16BIT_SUPPORTED + /* This converts from GGAA to AAGG */ + else + { + png_bytep sp = row + row_info->rowbytes; + png_bytep dp = sp; + png_byte save[2]; + png_uint_32 i; + + for (i = 0; i < row_width; i++) + { + save[0] = *(--sp); + save[1] = *(--sp); + *(--dp) = *(--sp); + *(--dp) = *(--sp); + *(--dp) = save[0]; + *(--dp) = save[1]; + } + } +#endif + } + } +} +#endif + +#ifdef PNG_READ_INVERT_ALPHA_SUPPORTED +static void +png_do_read_invert_alpha(png_row_infop row_info, png_bytep row) +{ + png_uint_32 row_width; + png_debug(1, "in png_do_read_invert_alpha"); + + row_width = row_info->width; + if (row_info->color_type == PNG_COLOR_TYPE_RGB_ALPHA) + { + if (row_info->bit_depth == 8) + { + /* This inverts the alpha channel in RGBA */ + png_bytep sp = row + row_info->rowbytes; + png_bytep dp = sp; + png_uint_32 i; + + for (i = 0; i < row_width; i++) + { + *(--dp) = (png_byte)(255 - *(--sp)); + +/* This does nothing: + *(--dp) = *(--sp); + *(--dp) = *(--sp); + *(--dp) = *(--sp); + We can replace it with: +*/ + sp-=3; + dp=sp; + } + } + +#ifdef PNG_READ_16BIT_SUPPORTED + /* This inverts the alpha channel in RRGGBBAA */ + else + { + png_bytep sp = row + row_info->rowbytes; + png_bytep dp = sp; + png_uint_32 i; + + for (i = 0; i < row_width; i++) + { + *(--dp) = (png_byte)(255 - *(--sp)); + *(--dp) = (png_byte)(255 - *(--sp)); + +/* This does nothing: + *(--dp) = *(--sp); + *(--dp) = *(--sp); + *(--dp) = *(--sp); + *(--dp) = *(--sp); + *(--dp) = *(--sp); + *(--dp) = *(--sp); + We can replace it with: +*/ + sp-=6; + dp=sp; + } + } +#endif + } + else if (row_info->color_type == PNG_COLOR_TYPE_GRAY_ALPHA) + { + if (row_info->bit_depth == 8) + { + /* This inverts the alpha channel in GA */ + png_bytep sp = row + row_info->rowbytes; + png_bytep dp = sp; + png_uint_32 i; + + for (i = 0; i < row_width; i++) + { + *(--dp) = (png_byte)(255 - *(--sp)); + *(--dp) = *(--sp); + } + } + +#ifdef PNG_READ_16BIT_SUPPORTED + else + { + /* This inverts the alpha channel in GGAA */ + png_bytep sp = row + row_info->rowbytes; + png_bytep dp = sp; + png_uint_32 i; + + for (i = 0; i < row_width; i++) + { + *(--dp) = (png_byte)(255 - *(--sp)); + *(--dp) = (png_byte)(255 - *(--sp)); +/* + *(--dp) = *(--sp); + *(--dp) = *(--sp); +*/ + sp-=2; + dp=sp; + } + } +#endif + } +} +#endif + +#ifdef PNG_READ_FILLER_SUPPORTED +/* Add filler channel if we have RGB color */ +static void +png_do_read_filler(png_row_infop row_info, png_bytep row, + png_uint_32 filler, png_uint_32 flags) +{ + png_uint_32 i; + png_uint_32 row_width = row_info->width; + +#ifdef PNG_READ_16BIT_SUPPORTED + png_byte hi_filler = (png_byte)((filler>>8) & 0xff); +#endif + png_byte lo_filler = (png_byte)(filler & 0xff); + + png_debug(1, "in png_do_read_filler"); + + if ( + row_info->color_type == PNG_COLOR_TYPE_GRAY) + { + if (row_info->bit_depth == 8) + { + if (flags & PNG_FLAG_FILLER_AFTER) + { + /* This changes the data from G to GX */ + png_bytep sp = row + (png_size_t)row_width; + png_bytep dp = sp + (png_size_t)row_width; + for (i = 1; i < row_width; i++) + { + *(--dp) = lo_filler; + *(--dp) = *(--sp); + } + *(--dp) = lo_filler; + row_info->channels = 2; + row_info->pixel_depth = 16; + row_info->rowbytes = row_width * 2; + } + + else + { + /* This changes the data from G to XG */ + png_bytep sp = row + (png_size_t)row_width; + png_bytep dp = sp + (png_size_t)row_width; + for (i = 0; i < row_width; i++) + { + *(--dp) = *(--sp); + *(--dp) = lo_filler; + } + row_info->channels = 2; + row_info->pixel_depth = 16; + row_info->rowbytes = row_width * 2; + } + } + +#ifdef PNG_READ_16BIT_SUPPORTED + else if (row_info->bit_depth == 16) + { + if (flags & PNG_FLAG_FILLER_AFTER) + { + /* This changes the data from GG to GGXX */ + png_bytep sp = row + (png_size_t)row_width * 2; + png_bytep dp = sp + (png_size_t)row_width * 2; + for (i = 1; i < row_width; i++) + { + *(--dp) = hi_filler; + *(--dp) = lo_filler; + *(--dp) = *(--sp); + *(--dp) = *(--sp); + } + *(--dp) = hi_filler; + *(--dp) = lo_filler; + row_info->channels = 2; + row_info->pixel_depth = 32; + row_info->rowbytes = row_width * 4; + } + + else + { + /* This changes the data from GG to XXGG */ + png_bytep sp = row + (png_size_t)row_width * 2; + png_bytep dp = sp + (png_size_t)row_width * 2; + for (i = 0; i < row_width; i++) + { + *(--dp) = *(--sp); + *(--dp) = *(--sp); + *(--dp) = hi_filler; + *(--dp) = lo_filler; + } + row_info->channels = 2; + row_info->pixel_depth = 32; + row_info->rowbytes = row_width * 4; + } + } +#endif + } /* COLOR_TYPE == GRAY */ + else if (row_info->color_type == PNG_COLOR_TYPE_RGB) + { + if (row_info->bit_depth == 8) + { + if (flags & PNG_FLAG_FILLER_AFTER) + { + /* This changes the data from RGB to RGBX */ + png_bytep sp = row + (png_size_t)row_width * 3; + png_bytep dp = sp + (png_size_t)row_width; + for (i = 1; i < row_width; i++) + { + *(--dp) = lo_filler; + *(--dp) = *(--sp); + *(--dp) = *(--sp); + *(--dp) = *(--sp); + } + *(--dp) = lo_filler; + row_info->channels = 4; + row_info->pixel_depth = 32; + row_info->rowbytes = row_width * 4; + } + + else + { + /* This changes the data from RGB to XRGB */ + png_bytep sp = row + (png_size_t)row_width * 3; + png_bytep dp = sp + (png_size_t)row_width; + for (i = 0; i < row_width; i++) + { + *(--dp) = *(--sp); + *(--dp) = *(--sp); + *(--dp) = *(--sp); + *(--dp) = lo_filler; + } + row_info->channels = 4; + row_info->pixel_depth = 32; + row_info->rowbytes = row_width * 4; + } + } + +#ifdef PNG_READ_16BIT_SUPPORTED + else if (row_info->bit_depth == 16) + { + if (flags & PNG_FLAG_FILLER_AFTER) + { + /* This changes the data from RRGGBB to RRGGBBXX */ + png_bytep sp = row + (png_size_t)row_width * 6; + png_bytep dp = sp + (png_size_t)row_width * 2; + for (i = 1; i < row_width; i++) + { + *(--dp) = hi_filler; + *(--dp) = lo_filler; + *(--dp) = *(--sp); + *(--dp) = *(--sp); + *(--dp) = *(--sp); + *(--dp) = *(--sp); + *(--dp) = *(--sp); + *(--dp) = *(--sp); + } + *(--dp) = hi_filler; + *(--dp) = lo_filler; + row_info->channels = 4; + row_info->pixel_depth = 64; + row_info->rowbytes = row_width * 8; + } + + else + { + /* This changes the data from RRGGBB to XXRRGGBB */ + png_bytep sp = row + (png_size_t)row_width * 6; + png_bytep dp = sp + (png_size_t)row_width * 2; + for (i = 0; i < row_width; i++) + { + *(--dp) = *(--sp); + *(--dp) = *(--sp); + *(--dp) = *(--sp); + *(--dp) = *(--sp); + *(--dp) = *(--sp); + *(--dp) = *(--sp); + *(--dp) = hi_filler; + *(--dp) = lo_filler; + } + + row_info->channels = 4; + row_info->pixel_depth = 64; + row_info->rowbytes = row_width * 8; + } + } +#endif + } /* COLOR_TYPE == RGB */ +} +#endif + +#ifdef PNG_READ_GRAY_TO_RGB_SUPPORTED +/* Expand grayscale files to RGB, with or without alpha */ +static void +png_do_gray_to_rgb(png_row_infop row_info, png_bytep row) +{ + png_uint_32 i; + png_uint_32 row_width = row_info->width; + + png_debug(1, "in png_do_gray_to_rgb"); + + if (row_info->bit_depth >= 8 && + !(row_info->color_type & PNG_COLOR_MASK_COLOR)) + { + if (row_info->color_type == PNG_COLOR_TYPE_GRAY) + { + if (row_info->bit_depth == 8) + { + /* This changes G to RGB */ + png_bytep sp = row + (png_size_t)row_width - 1; + png_bytep dp = sp + (png_size_t)row_width * 2; + for (i = 0; i < row_width; i++) + { + *(dp--) = *sp; + *(dp--) = *sp; + *(dp--) = *(sp--); + } + } + + else + { + /* This changes GG to RRGGBB */ + png_bytep sp = row + (png_size_t)row_width * 2 - 1; + png_bytep dp = sp + (png_size_t)row_width * 4; + for (i = 0; i < row_width; i++) + { + *(dp--) = *sp; + *(dp--) = *(sp - 1); + *(dp--) = *sp; + *(dp--) = *(sp - 1); + *(dp--) = *(sp--); + *(dp--) = *(sp--); + } + } + } + + else if (row_info->color_type == PNG_COLOR_TYPE_GRAY_ALPHA) + { + if (row_info->bit_depth == 8) + { + /* This changes GA to RGBA */ + png_bytep sp = row + (png_size_t)row_width * 2 - 1; + png_bytep dp = sp + (png_size_t)row_width * 2; + for (i = 0; i < row_width; i++) + { + *(dp--) = *(sp--); + *(dp--) = *sp; + *(dp--) = *sp; + *(dp--) = *(sp--); + } + } + + else + { + /* This changes GGAA to RRGGBBAA */ + png_bytep sp = row + (png_size_t)row_width * 4 - 1; + png_bytep dp = sp + (png_size_t)row_width * 4; + for (i = 0; i < row_width; i++) + { + *(dp--) = *(sp--); + *(dp--) = *(sp--); + *(dp--) = *sp; + *(dp--) = *(sp - 1); + *(dp--) = *sp; + *(dp--) = *(sp - 1); + *(dp--) = *(sp--); + *(dp--) = *(sp--); + } + } + } + row_info->channels = (png_byte)(row_info->channels + 2); + row_info->color_type |= PNG_COLOR_MASK_COLOR; + row_info->pixel_depth = (png_byte)(row_info->channels * + row_info->bit_depth); + row_info->rowbytes = PNG_ROWBYTES(row_info->pixel_depth, row_width); + } +} +#endif + +#ifdef PNG_READ_RGB_TO_GRAY_SUPPORTED +/* Reduce RGB files to grayscale, with or without alpha + * using the equation given in Poynton's ColorFAQ of 1998-01-04 at + * (THIS LINK IS DEAD June 2008 but + * versions dated 1998 through November 2002 have been archived at + * http://web.archive.org/web/20000816232553/http://www.inforamp.net/ + * ~poynton/notes/colour_and_gamma/ColorFAQ.txt ) + * Charles Poynton poynton at poynton.com + * + * Y = 0.212671 * R + 0.715160 * G + 0.072169 * B + * + * which can be expressed with integers as + * + * Y = (6969 * R + 23434 * G + 2365 * B)/32768 + * + * Poynton's current link (as of January 2003 through July 2011): + * + * has changed the numbers slightly: + * + * Y = 0.2126*R + 0.7152*G + 0.0722*B + * + * which can be expressed with integers as + * + * Y = (6966 * R + 23436 * G + 2366 * B)/32768 + * + * Historically, however, libpng uses numbers derived from the ITU-R Rec 709 + * end point chromaticities and the D65 white point. Depending on the + * precision used for the D65 white point this produces a variety of different + * numbers, however if the four decimal place value used in ITU-R Rec 709 is + * used (0.3127,0.3290) the Y calculation would be: + * + * Y = (6968 * R + 23435 * G + 2366 * B)/32768 + * + * While this is correct the rounding results in an overflow for white, because + * the sum of the rounded coefficients is 32769, not 32768. Consequently + * libpng uses, instead, the closest non-overflowing approximation: + * + * Y = (6968 * R + 23434 * G + 2366 * B)/32768 + * + * Starting with libpng-1.5.5, if the image being converted has a cHRM chunk + * (including an sRGB chunk) then the chromaticities are used to calculate the + * coefficients. See the chunk handling in pngrutil.c for more information. + * + * In all cases the calculation is to be done in a linear colorspace. If no + * gamma information is available to correct the encoding of the original RGB + * values this results in an implicit assumption that the original PNG RGB + * values were linear. + * + * Other integer coefficents can be used via png_set_rgb_to_gray(). Because + * the API takes just red and green coefficients the blue coefficient is + * calculated to make the sum 32768. This will result in different rounding + * to that used above. + */ +static int +png_do_rgb_to_gray(png_structrp png_ptr, png_row_infop row_info, png_bytep row) + +{ + int rgb_error = 0; + + png_debug(1, "in png_do_rgb_to_gray"); + + if (!(row_info->color_type & PNG_COLOR_MASK_PALETTE) && + (row_info->color_type & PNG_COLOR_MASK_COLOR)) + { + PNG_CONST png_uint_32 rc = png_ptr->rgb_to_gray_red_coeff; + PNG_CONST png_uint_32 gc = png_ptr->rgb_to_gray_green_coeff; + PNG_CONST png_uint_32 bc = 32768 - rc - gc; + PNG_CONST png_uint_32 row_width = row_info->width; + PNG_CONST int have_alpha = + (row_info->color_type & PNG_COLOR_MASK_ALPHA) != 0; + + if (row_info->bit_depth == 8) + { +#ifdef PNG_READ_GAMMA_SUPPORTED + /* Notice that gamma to/from 1 are not necessarily inverses (if + * there is an overall gamma correction). Prior to 1.5.5 this code + * checked the linearized values for equality; this doesn't match + * the documentation, the original values must be checked. + */ + if (png_ptr->gamma_from_1 != NULL && png_ptr->gamma_to_1 != NULL) + { + png_bytep sp = row; + png_bytep dp = row; + png_uint_32 i; + + for (i = 0; i < row_width; i++) + { + png_byte red = *(sp++); + png_byte green = *(sp++); + png_byte blue = *(sp++); + + if (red != green || red != blue) + { + red = png_ptr->gamma_to_1[red]; + green = png_ptr->gamma_to_1[green]; + blue = png_ptr->gamma_to_1[blue]; + + rgb_error |= 1; + *(dp++) = png_ptr->gamma_from_1[ + (rc*red + gc*green + bc*blue + 16384)>>15]; + } + + else + { + /* If there is no overall correction the table will not be + * set. + */ + if (png_ptr->gamma_table != NULL) + red = png_ptr->gamma_table[red]; + + *(dp++) = red; + } + + if (have_alpha != 0) + *(dp++) = *(sp++); + } + } + else +#endif + { + png_bytep sp = row; + png_bytep dp = row; + png_uint_32 i; + + for (i = 0; i < row_width; i++) + { + png_byte red = *(sp++); + png_byte green = *(sp++); + png_byte blue = *(sp++); + + if (red != green || red != blue) + { + rgb_error |= 1; + /* NOTE: this is the historical approach which simply + * truncates the results. + */ + *(dp++) = (png_byte)((rc*red + gc*green + bc*blue)>>15); + } + + else + *(dp++) = red; + + if (have_alpha != 0) + *(dp++) = *(sp++); + } + } + } + + else /* RGB bit_depth == 16 */ + { +#ifdef PNG_READ_GAMMA_SUPPORTED + if (png_ptr->gamma_16_to_1 != NULL && png_ptr->gamma_16_from_1 != NULL) + { + png_bytep sp = row; + png_bytep dp = row; + png_uint_32 i; + + for (i = 0; i < row_width; i++) + { + png_uint_16 red, green, blue, w; + + red = (png_uint_16)(((*(sp))<<8) | *(sp + 1)); sp += 2; + green = (png_uint_16)(((*(sp))<<8) | *(sp + 1)); sp += 2; + blue = (png_uint_16)(((*(sp))<<8) | *(sp + 1)); sp += 2; + + if (red == green && red == blue) + { + if (png_ptr->gamma_16_table != NULL) + w = png_ptr->gamma_16_table[(red&0xff) + >> png_ptr->gamma_shift][red>>8]; + + else + w = red; + } + + else + { + png_uint_16 red_1 = png_ptr->gamma_16_to_1[(red&0xff) + >> png_ptr->gamma_shift][red>>8]; + png_uint_16 green_1 = + png_ptr->gamma_16_to_1[(green&0xff) >> + png_ptr->gamma_shift][green>>8]; + png_uint_16 blue_1 = png_ptr->gamma_16_to_1[(blue&0xff) + >> png_ptr->gamma_shift][blue>>8]; + png_uint_16 gray16 = (png_uint_16)((rc*red_1 + gc*green_1 + + bc*blue_1 + 16384)>>15); + w = png_ptr->gamma_16_from_1[(gray16&0xff) >> + png_ptr->gamma_shift][gray16 >> 8]; + rgb_error |= 1; + } + + *(dp++) = (png_byte)((w>>8) & 0xff); + *(dp++) = (png_byte)(w & 0xff); + + if (have_alpha != 0) + { + *(dp++) = *(sp++); + *(dp++) = *(sp++); + } + } + } + else +#endif + { + png_bytep sp = row; + png_bytep dp = row; + png_uint_32 i; + + for (i = 0; i < row_width; i++) + { + png_uint_16 red, green, blue, gray16; + + red = (png_uint_16)(((*(sp))<<8) | *(sp + 1)); sp += 2; + green = (png_uint_16)(((*(sp))<<8) | *(sp + 1)); sp += 2; + blue = (png_uint_16)(((*(sp))<<8) | *(sp + 1)); sp += 2; + + if (red != green || red != blue) + rgb_error |= 1; + + /* From 1.5.5 in the 16 bit case do the accurate conversion even + * in the 'fast' case - this is because this is where the code + * ends up when handling linear 16 bit data. + */ + gray16 = (png_uint_16)((rc*red + gc*green + bc*blue + 16384) >> + 15); + *(dp++) = (png_byte)((gray16>>8) & 0xff); + *(dp++) = (png_byte)(gray16 & 0xff); + + if (have_alpha != 0) + { + *(dp++) = *(sp++); + *(dp++) = *(sp++); + } + } + } + } + + row_info->channels = (png_byte)(row_info->channels - 2); + row_info->color_type = (png_byte)(row_info->color_type & + ~PNG_COLOR_MASK_COLOR); + row_info->pixel_depth = (png_byte)(row_info->channels * + row_info->bit_depth); + row_info->rowbytes = PNG_ROWBYTES(row_info->pixel_depth, row_width); + } + return rgb_error; +} +#endif + +#if defined(PNG_READ_BACKGROUND_SUPPORTED) ||\ + defined(PNG_READ_ALPHA_MODE_SUPPORTED) +/* Replace any alpha or transparency with the supplied background color. + * "background" is already in the screen gamma, while "background_1" is + * at a gamma of 1.0. Paletted files have already been taken care of. + */ +static void +png_do_compose(png_row_infop row_info, png_bytep row, png_structrp png_ptr) +{ +#ifdef PNG_READ_GAMMA_SUPPORTED + png_const_bytep gamma_table = png_ptr->gamma_table; + png_const_bytep gamma_from_1 = png_ptr->gamma_from_1; + png_const_bytep gamma_to_1 = png_ptr->gamma_to_1; + png_const_uint_16pp gamma_16 = png_ptr->gamma_16_table; + png_const_uint_16pp gamma_16_from_1 = png_ptr->gamma_16_from_1; + png_const_uint_16pp gamma_16_to_1 = png_ptr->gamma_16_to_1; + int gamma_shift = png_ptr->gamma_shift; + int optimize = (png_ptr->flags & PNG_FLAG_OPTIMIZE_ALPHA) != 0; +#endif + + png_bytep sp; + png_uint_32 i; + png_uint_32 row_width = row_info->width; + int shift; + + png_debug(1, "in png_do_compose"); + + { + switch (row_info->color_type) + { + case PNG_COLOR_TYPE_GRAY: + { + switch (row_info->bit_depth) + { + case 1: + { + sp = row; + shift = 7; + for (i = 0; i < row_width; i++) + { + if ((png_uint_16)((*sp >> shift) & 0x01) + == png_ptr->trans_color.gray) + { + unsigned int tmp = *sp & (0x7f7f >> (7 - shift)); + tmp |= png_ptr->background.gray << shift; + *sp = (png_byte)(tmp & 0xff); + } + + if (shift == 0) + { + shift = 7; + sp++; + } + + else + shift--; + } + break; + } + + case 2: + { +#ifdef PNG_READ_GAMMA_SUPPORTED + if (gamma_table != NULL) + { + sp = row; + shift = 6; + for (i = 0; i < row_width; i++) + { + if ((png_uint_16)((*sp >> shift) & 0x03) + == png_ptr->trans_color.gray) + { + unsigned int tmp = *sp & (0x3f3f >> (6 - shift)); + tmp |= png_ptr->background.gray << shift; + *sp = (png_byte)(tmp & 0xff); + } + + else + { + unsigned int p = (*sp >> shift) & 0x03; + unsigned int g = (gamma_table [p | (p << 2) | + (p << 4) | (p << 6)] >> 6) & 0x03; + unsigned int tmp = *sp & (0x3f3f >> (6 - shift)); + tmp |= g << shift; + *sp = (png_byte)(tmp & 0xff); + } + + if (shift == 0) + { + shift = 6; + sp++; + } + + else + shift -= 2; + } + } + + else +#endif + { + sp = row; + shift = 6; + for (i = 0; i < row_width; i++) + { + if ((png_uint_16)((*sp >> shift) & 0x03) + == png_ptr->trans_color.gray) + { + unsigned int tmp = *sp & (0x3f3f >> (6 - shift)); + tmp |= png_ptr->background.gray << shift; + *sp = (png_byte)(tmp & 0xff); + } + + if (shift == 0) + { + shift = 6; + sp++; + } + + else + shift -= 2; + } + } + break; + } + + case 4: + { +#ifdef PNG_READ_GAMMA_SUPPORTED + if (gamma_table != NULL) + { + sp = row; + shift = 4; + for (i = 0; i < row_width; i++) + { + if ((png_uint_16)((*sp >> shift) & 0x0f) + == png_ptr->trans_color.gray) + { + unsigned int tmp = *sp & (0xf0f >> (4 - shift)); + tmp |= png_ptr->background.gray << shift; + *sp = (png_byte)(tmp & 0xff); + } + + else + { + unsigned int p = (*sp >> shift) & 0x0f; + unsigned int g = (gamma_table[p | (p << 4)] >> 4) & + 0x0f; + unsigned int tmp = *sp & (0xf0f >> (4 - shift)); + tmp |= g << shift; + *sp = (png_byte)(tmp & 0xff); + } + + if (shift == 0) + { + shift = 4; + sp++; + } + + else + shift -= 4; + } + } + + else +#endif + { + sp = row; + shift = 4; + for (i = 0; i < row_width; i++) + { + if ((png_uint_16)((*sp >> shift) & 0x0f) + == png_ptr->trans_color.gray) + { + unsigned int tmp = *sp & (0xf0f >> (4 - shift)); + tmp |= png_ptr->background.gray << shift; + *sp = (png_byte)(tmp & 0xff); + } + + if (shift == 0) + { + shift = 4; + sp++; + } + + else + shift -= 4; + } + } + break; + } + + case 8: + { +#ifdef PNG_READ_GAMMA_SUPPORTED + if (gamma_table != NULL) + { + sp = row; + for (i = 0; i < row_width; i++, sp++) + { + if (*sp == png_ptr->trans_color.gray) + *sp = (png_byte)png_ptr->background.gray; + + else + *sp = gamma_table[*sp]; + } + } + else +#endif + { + sp = row; + for (i = 0; i < row_width; i++, sp++) + { + if (*sp == png_ptr->trans_color.gray) + *sp = (png_byte)png_ptr->background.gray; + } + } + break; + } + + case 16: + { +#ifdef PNG_READ_GAMMA_SUPPORTED + if (gamma_16 != NULL) + { + sp = row; + for (i = 0; i < row_width; i++, sp += 2) + { + png_uint_16 v; + + v = (png_uint_16)(((*sp) << 8) + *(sp + 1)); + + if (v == png_ptr->trans_color.gray) + { + /* Background is already in screen gamma */ + *sp = (png_byte)((png_ptr->background.gray >> 8) + & 0xff); + *(sp + 1) = (png_byte)(png_ptr->background.gray + & 0xff); + } + + else + { + v = gamma_16[*(sp + 1) >> gamma_shift][*sp]; + *sp = (png_byte)((v >> 8) & 0xff); + *(sp + 1) = (png_byte)(v & 0xff); + } + } + } + else +#endif + { + sp = row; + for (i = 0; i < row_width; i++, sp += 2) + { + png_uint_16 v; + + v = (png_uint_16)(((*sp) << 8) + *(sp + 1)); + + if (v == png_ptr->trans_color.gray) + { + *sp = (png_byte)((png_ptr->background.gray >> 8) + & 0xff); + *(sp + 1) = (png_byte)(png_ptr->background.gray + & 0xff); + } + } + } + break; + } + + default: + break; + } + break; + } + + case PNG_COLOR_TYPE_RGB: + { + if (row_info->bit_depth == 8) + { +#ifdef PNG_READ_GAMMA_SUPPORTED + if (gamma_table != NULL) + { + sp = row; + for (i = 0; i < row_width; i++, sp += 3) + { + if (*sp == png_ptr->trans_color.red && + *(sp + 1) == png_ptr->trans_color.green && + *(sp + 2) == png_ptr->trans_color.blue) + { + *sp = (png_byte)png_ptr->background.red; + *(sp + 1) = (png_byte)png_ptr->background.green; + *(sp + 2) = (png_byte)png_ptr->background.blue; + } + + else + { + *sp = gamma_table[*sp]; + *(sp + 1) = gamma_table[*(sp + 1)]; + *(sp + 2) = gamma_table[*(sp + 2)]; + } + } + } + else +#endif + { + sp = row; + for (i = 0; i < row_width; i++, sp += 3) + { + if (*sp == png_ptr->trans_color.red && + *(sp + 1) == png_ptr->trans_color.green && + *(sp + 2) == png_ptr->trans_color.blue) + { + *sp = (png_byte)png_ptr->background.red; + *(sp + 1) = (png_byte)png_ptr->background.green; + *(sp + 2) = (png_byte)png_ptr->background.blue; + } + } + } + } + else /* if (row_info->bit_depth == 16) */ + { +#ifdef PNG_READ_GAMMA_SUPPORTED + if (gamma_16 != NULL) + { + sp = row; + for (i = 0; i < row_width; i++, sp += 6) + { + png_uint_16 r = (png_uint_16)(((*sp) << 8) + *(sp + 1)); + + png_uint_16 g = (png_uint_16)(((*(sp + 2)) << 8) + + *(sp + 3)); + + png_uint_16 b = (png_uint_16)(((*(sp + 4)) << 8) + + *(sp + 5)); + + if (r == png_ptr->trans_color.red && + g == png_ptr->trans_color.green && + b == png_ptr->trans_color.blue) + { + /* Background is already in screen gamma */ + *sp = (png_byte)((png_ptr->background.red >> 8) & 0xff); + *(sp + 1) = (png_byte)(png_ptr->background.red & 0xff); + *(sp + 2) = (png_byte)((png_ptr->background.green >> 8) + & 0xff); + *(sp + 3) = (png_byte)(png_ptr->background.green + & 0xff); + *(sp + 4) = (png_byte)((png_ptr->background.blue >> 8) + & 0xff); + *(sp + 5) = (png_byte)(png_ptr->background.blue & 0xff); + } + + else + { + png_uint_16 v = gamma_16[*(sp + 1) >> gamma_shift][*sp]; + *sp = (png_byte)((v >> 8) & 0xff); + *(sp + 1) = (png_byte)(v & 0xff); + + v = gamma_16[*(sp + 3) >> gamma_shift][*(sp + 2)]; + *(sp + 2) = (png_byte)((v >> 8) & 0xff); + *(sp + 3) = (png_byte)(v & 0xff); + + v = gamma_16[*(sp + 5) >> gamma_shift][*(sp + 4)]; + *(sp + 4) = (png_byte)((v >> 8) & 0xff); + *(sp + 5) = (png_byte)(v & 0xff); + } + } + } + + else +#endif + { + sp = row; + for (i = 0; i < row_width; i++, sp += 6) + { + png_uint_16 r = (png_uint_16)(((*sp) << 8) + *(sp + 1)); + + png_uint_16 g = (png_uint_16)(((*(sp + 2)) << 8) + + *(sp + 3)); + + png_uint_16 b = (png_uint_16)(((*(sp + 4)) << 8) + + *(sp + 5)); + + if (r == png_ptr->trans_color.red && + g == png_ptr->trans_color.green && + b == png_ptr->trans_color.blue) + { + *sp = (png_byte)((png_ptr->background.red >> 8) & 0xff); + *(sp + 1) = (png_byte)(png_ptr->background.red & 0xff); + *(sp + 2) = (png_byte)((png_ptr->background.green >> 8) + & 0xff); + *(sp + 3) = (png_byte)(png_ptr->background.green + & 0xff); + *(sp + 4) = (png_byte)((png_ptr->background.blue >> 8) + & 0xff); + *(sp + 5) = (png_byte)(png_ptr->background.blue & 0xff); + } + } + } + } + break; + } + + case PNG_COLOR_TYPE_GRAY_ALPHA: + { + if (row_info->bit_depth == 8) + { +#ifdef PNG_READ_GAMMA_SUPPORTED + if (gamma_to_1 != NULL && gamma_from_1 != NULL && + gamma_table != NULL) + { + sp = row; + for (i = 0; i < row_width; i++, sp += 2) + { + png_uint_16 a = *(sp + 1); + + if (a == 0xff) + *sp = gamma_table[*sp]; + + else if (a == 0) + { + /* Background is already in screen gamma */ + *sp = (png_byte)png_ptr->background.gray; + } + + else + { + png_byte v, w; + + v = gamma_to_1[*sp]; + png_composite(w, v, a, png_ptr->background_1.gray); + if (optimize == 0) + w = gamma_from_1[w]; + *sp = w; + } + } + } + else +#endif + { + sp = row; + for (i = 0; i < row_width; i++, sp += 2) + { + png_byte a = *(sp + 1); + + if (a == 0) + *sp = (png_byte)png_ptr->background.gray; + + else if (a < 0xff) + png_composite(*sp, *sp, a, png_ptr->background.gray); + } + } + } + else /* if (png_ptr->bit_depth == 16) */ + { +#ifdef PNG_READ_GAMMA_SUPPORTED + if (gamma_16 != NULL && gamma_16_from_1 != NULL && + gamma_16_to_1 != NULL) + { + sp = row; + for (i = 0; i < row_width; i++, sp += 4) + { + png_uint_16 a = (png_uint_16)(((*(sp + 2)) << 8) + + *(sp + 3)); + + if (a == (png_uint_16)0xffff) + { + png_uint_16 v; + + v = gamma_16[*(sp + 1) >> gamma_shift][*sp]; + *sp = (png_byte)((v >> 8) & 0xff); + *(sp + 1) = (png_byte)(v & 0xff); + } + + else if (a == 0) + { + /* Background is already in screen gamma */ + *sp = (png_byte)((png_ptr->background.gray >> 8) + & 0xff); + *(sp + 1) = (png_byte)(png_ptr->background.gray & 0xff); + } + + else + { + png_uint_16 g, v, w; + + g = gamma_16_to_1[*(sp + 1) >> gamma_shift][*sp]; + png_composite_16(v, g, a, png_ptr->background_1.gray); + if (optimize != 0) + w = v; + else + w = gamma_16_from_1[(v&0xff) >> gamma_shift][v >> 8]; + *sp = (png_byte)((w >> 8) & 0xff); + *(sp + 1) = (png_byte)(w & 0xff); + } + } + } + else +#endif + { + sp = row; + for (i = 0; i < row_width; i++, sp += 4) + { + png_uint_16 a = (png_uint_16)(((*(sp + 2)) << 8) + + *(sp + 3)); + + if (a == 0) + { + *sp = (png_byte)((png_ptr->background.gray >> 8) + & 0xff); + *(sp + 1) = (png_byte)(png_ptr->background.gray & 0xff); + } + + else if (a < 0xffff) + { + png_uint_16 g, v; + + g = (png_uint_16)(((*sp) << 8) + *(sp + 1)); + png_composite_16(v, g, a, png_ptr->background.gray); + *sp = (png_byte)((v >> 8) & 0xff); + *(sp + 1) = (png_byte)(v & 0xff); + } + } + } + } + break; + } + + case PNG_COLOR_TYPE_RGB_ALPHA: + { + if (row_info->bit_depth == 8) + { +#ifdef PNG_READ_GAMMA_SUPPORTED + if (gamma_to_1 != NULL && gamma_from_1 != NULL && + gamma_table != NULL) + { + sp = row; + for (i = 0; i < row_width; i++, sp += 4) + { + png_byte a = *(sp + 3); + + if (a == 0xff) + { + *sp = gamma_table[*sp]; + *(sp + 1) = gamma_table[*(sp + 1)]; + *(sp + 2) = gamma_table[*(sp + 2)]; + } + + else if (a == 0) + { + /* Background is already in screen gamma */ + *sp = (png_byte)png_ptr->background.red; + *(sp + 1) = (png_byte)png_ptr->background.green; + *(sp + 2) = (png_byte)png_ptr->background.blue; + } + + else + { + png_byte v, w; + + v = gamma_to_1[*sp]; + png_composite(w, v, a, png_ptr->background_1.red); + if (optimize == 0) w = gamma_from_1[w]; + *sp = w; + + v = gamma_to_1[*(sp + 1)]; + png_composite(w, v, a, png_ptr->background_1.green); + if (optimize == 0) w = gamma_from_1[w]; + *(sp + 1) = w; + + v = gamma_to_1[*(sp + 2)]; + png_composite(w, v, a, png_ptr->background_1.blue); + if (optimize == 0) w = gamma_from_1[w]; + *(sp + 2) = w; + } + } + } + else +#endif + { + sp = row; + for (i = 0; i < row_width; i++, sp += 4) + { + png_byte a = *(sp + 3); + + if (a == 0) + { + *sp = (png_byte)png_ptr->background.red; + *(sp + 1) = (png_byte)png_ptr->background.green; + *(sp + 2) = (png_byte)png_ptr->background.blue; + } + + else if (a < 0xff) + { + png_composite(*sp, *sp, a, png_ptr->background.red); + + png_composite(*(sp + 1), *(sp + 1), a, + png_ptr->background.green); + + png_composite(*(sp + 2), *(sp + 2), a, + png_ptr->background.blue); + } + } + } + } + else /* if (row_info->bit_depth == 16) */ + { +#ifdef PNG_READ_GAMMA_SUPPORTED + if (gamma_16 != NULL && gamma_16_from_1 != NULL && + gamma_16_to_1 != NULL) + { + sp = row; + for (i = 0; i < row_width; i++, sp += 8) + { + png_uint_16 a = (png_uint_16)(((png_uint_16)(*(sp + 6)) + << 8) + (png_uint_16)(*(sp + 7))); + + if (a == (png_uint_16)0xffff) + { + png_uint_16 v; + + v = gamma_16[*(sp + 1) >> gamma_shift][*sp]; + *sp = (png_byte)((v >> 8) & 0xff); + *(sp + 1) = (png_byte)(v & 0xff); + + v = gamma_16[*(sp + 3) >> gamma_shift][*(sp + 2)]; + *(sp + 2) = (png_byte)((v >> 8) & 0xff); + *(sp + 3) = (png_byte)(v & 0xff); + + v = gamma_16[*(sp + 5) >> gamma_shift][*(sp + 4)]; + *(sp + 4) = (png_byte)((v >> 8) & 0xff); + *(sp + 5) = (png_byte)(v & 0xff); + } + + else if (a == 0) + { + /* Background is already in screen gamma */ + *sp = (png_byte)((png_ptr->background.red >> 8) & 0xff); + *(sp + 1) = (png_byte)(png_ptr->background.red & 0xff); + *(sp + 2) = (png_byte)((png_ptr->background.green >> 8) + & 0xff); + *(sp + 3) = (png_byte)(png_ptr->background.green + & 0xff); + *(sp + 4) = (png_byte)((png_ptr->background.blue >> 8) + & 0xff); + *(sp + 5) = (png_byte)(png_ptr->background.blue & 0xff); + } + + else + { + png_uint_16 v, w; + + v = gamma_16_to_1[*(sp + 1) >> gamma_shift][*sp]; + png_composite_16(w, v, a, png_ptr->background_1.red); + if (optimize == 0) + w = gamma_16_from_1[((w&0xff) >> gamma_shift)][w >> + 8]; + *sp = (png_byte)((w >> 8) & 0xff); + *(sp + 1) = (png_byte)(w & 0xff); + + v = gamma_16_to_1[*(sp + 3) >> gamma_shift][*(sp + 2)]; + png_composite_16(w, v, a, png_ptr->background_1.green); + if (optimize == 0) + w = gamma_16_from_1[((w&0xff) >> gamma_shift)][w >> + 8]; + + *(sp + 2) = (png_byte)((w >> 8) & 0xff); + *(sp + 3) = (png_byte)(w & 0xff); + + v = gamma_16_to_1[*(sp + 5) >> gamma_shift][*(sp + 4)]; + png_composite_16(w, v, a, png_ptr->background_1.blue); + if (optimize == 0) + w = gamma_16_from_1[((w&0xff) >> gamma_shift)][w >> + 8]; + + *(sp + 4) = (png_byte)((w >> 8) & 0xff); + *(sp + 5) = (png_byte)(w & 0xff); + } + } + } + + else +#endif + { + sp = row; + for (i = 0; i < row_width; i++, sp += 8) + { + png_uint_16 a = (png_uint_16)(((png_uint_16)(*(sp + 6)) + << 8) + (png_uint_16)(*(sp + 7))); + + if (a == 0) + { + *sp = (png_byte)((png_ptr->background.red >> 8) & 0xff); + *(sp + 1) = (png_byte)(png_ptr->background.red & 0xff); + *(sp + 2) = (png_byte)((png_ptr->background.green >> 8) + & 0xff); + *(sp + 3) = (png_byte)(png_ptr->background.green + & 0xff); + *(sp + 4) = (png_byte)((png_ptr->background.blue >> 8) + & 0xff); + *(sp + 5) = (png_byte)(png_ptr->background.blue & 0xff); + } + + else if (a < 0xffff) + { + png_uint_16 v; + + png_uint_16 r = (png_uint_16)(((*sp) << 8) + *(sp + 1)); + png_uint_16 g = (png_uint_16)(((*(sp + 2)) << 8) + + *(sp + 3)); + png_uint_16 b = (png_uint_16)(((*(sp + 4)) << 8) + + *(sp + 5)); + + png_composite_16(v, r, a, png_ptr->background.red); + *sp = (png_byte)((v >> 8) & 0xff); + *(sp + 1) = (png_byte)(v & 0xff); + + png_composite_16(v, g, a, png_ptr->background.green); + *(sp + 2) = (png_byte)((v >> 8) & 0xff); + *(sp + 3) = (png_byte)(v & 0xff); + + png_composite_16(v, b, a, png_ptr->background.blue); + *(sp + 4) = (png_byte)((v >> 8) & 0xff); + *(sp + 5) = (png_byte)(v & 0xff); + } + } + } + } + break; + } + + default: + break; + } + } +} +#endif /* PNG_READ_BACKGROUND_SUPPORTED || PNG_READ_ALPHA_MODE_SUPPORTED */ + +#ifdef PNG_READ_GAMMA_SUPPORTED +/* Gamma correct the image, avoiding the alpha channel. Make sure + * you do this after you deal with the transparency issue on grayscale + * or RGB images. If your bit depth is 8, use gamma_table, if it + * is 16, use gamma_16_table and gamma_shift. Build these with + * build_gamma_table(). + */ +static void +png_do_gamma(png_row_infop row_info, png_bytep row, png_structrp png_ptr) +{ + png_const_bytep gamma_table = png_ptr->gamma_table; + png_const_uint_16pp gamma_16_table = png_ptr->gamma_16_table; + int gamma_shift = png_ptr->gamma_shift; + + png_bytep sp; + png_uint_32 i; + png_uint_32 row_width=row_info->width; + + png_debug(1, "in png_do_gamma"); + + if (((row_info->bit_depth <= 8 && gamma_table != NULL) || + (row_info->bit_depth == 16 && gamma_16_table != NULL))) + { + switch (row_info->color_type) + { + case PNG_COLOR_TYPE_RGB: + { + if (row_info->bit_depth == 8) + { + sp = row; + for (i = 0; i < row_width; i++) + { + *sp = gamma_table[*sp]; + sp++; + *sp = gamma_table[*sp]; + sp++; + *sp = gamma_table[*sp]; + sp++; + } + } + + else /* if (row_info->bit_depth == 16) */ + { + sp = row; + for (i = 0; i < row_width; i++) + { + png_uint_16 v; + + v = gamma_16_table[*(sp + 1) >> gamma_shift][*sp]; + *sp = (png_byte)((v >> 8) & 0xff); + *(sp + 1) = (png_byte)(v & 0xff); + sp += 2; + + v = gamma_16_table[*(sp + 1) >> gamma_shift][*sp]; + *sp = (png_byte)((v >> 8) & 0xff); + *(sp + 1) = (png_byte)(v & 0xff); + sp += 2; + + v = gamma_16_table[*(sp + 1) >> gamma_shift][*sp]; + *sp = (png_byte)((v >> 8) & 0xff); + *(sp + 1) = (png_byte)(v & 0xff); + sp += 2; + } + } + break; + } + + case PNG_COLOR_TYPE_RGB_ALPHA: + { + if (row_info->bit_depth == 8) + { + sp = row; + for (i = 0; i < row_width; i++) + { + *sp = gamma_table[*sp]; + sp++; + + *sp = gamma_table[*sp]; + sp++; + + *sp = gamma_table[*sp]; + sp++; + + sp++; + } + } + + else /* if (row_info->bit_depth == 16) */ + { + sp = row; + for (i = 0; i < row_width; i++) + { + png_uint_16 v = gamma_16_table[*(sp + 1) >> gamma_shift][*sp]; + *sp = (png_byte)((v >> 8) & 0xff); + *(sp + 1) = (png_byte)(v & 0xff); + sp += 2; + + v = gamma_16_table[*(sp + 1) >> gamma_shift][*sp]; + *sp = (png_byte)((v >> 8) & 0xff); + *(sp + 1) = (png_byte)(v & 0xff); + sp += 2; + + v = gamma_16_table[*(sp + 1) >> gamma_shift][*sp]; + *sp = (png_byte)((v >> 8) & 0xff); + *(sp + 1) = (png_byte)(v & 0xff); + sp += 4; + } + } + break; + } + + case PNG_COLOR_TYPE_GRAY_ALPHA: + { + if (row_info->bit_depth == 8) + { + sp = row; + for (i = 0; i < row_width; i++) + { + *sp = gamma_table[*sp]; + sp += 2; + } + } + + else /* if (row_info->bit_depth == 16) */ + { + sp = row; + for (i = 0; i < row_width; i++) + { + png_uint_16 v = gamma_16_table[*(sp + 1) >> gamma_shift][*sp]; + *sp = (png_byte)((v >> 8) & 0xff); + *(sp + 1) = (png_byte)(v & 0xff); + sp += 4; + } + } + break; + } + + case PNG_COLOR_TYPE_GRAY: + { + if (row_info->bit_depth == 2) + { + sp = row; + for (i = 0; i < row_width; i += 4) + { + int a = *sp & 0xc0; + int b = *sp & 0x30; + int c = *sp & 0x0c; + int d = *sp & 0x03; + + *sp = (png_byte)( + ((((int)gamma_table[a|(a>>2)|(a>>4)|(a>>6)]) ) & 0xc0)| + ((((int)gamma_table[(b<<2)|b|(b>>2)|(b>>4)])>>2) & 0x30)| + ((((int)gamma_table[(c<<4)|(c<<2)|c|(c>>2)])>>4) & 0x0c)| + ((((int)gamma_table[(d<<6)|(d<<4)|(d<<2)|d])>>6) )); + sp++; + } + } + + if (row_info->bit_depth == 4) + { + sp = row; + for (i = 0; i < row_width; i += 2) + { + int msb = *sp & 0xf0; + int lsb = *sp & 0x0f; + + *sp = (png_byte)((((int)gamma_table[msb | (msb >> 4)]) & 0xf0) + | (((int)gamma_table[(lsb << 4) | lsb]) >> 4)); + sp++; + } + } + + else if (row_info->bit_depth == 8) + { + sp = row; + for (i = 0; i < row_width; i++) + { + *sp = gamma_table[*sp]; + sp++; + } + } + + else if (row_info->bit_depth == 16) + { + sp = row; + for (i = 0; i < row_width; i++) + { + png_uint_16 v = gamma_16_table[*(sp + 1) >> gamma_shift][*sp]; + *sp = (png_byte)((v >> 8) & 0xff); + *(sp + 1) = (png_byte)(v & 0xff); + sp += 2; + } + } + break; + } + + default: + break; + } + } +} +#endif + +#ifdef PNG_READ_ALPHA_MODE_SUPPORTED +/* Encode the alpha channel to the output gamma (the input channel is always + * linear.) Called only with color types that have an alpha channel. Needs the + * from_1 tables. + */ +static void +png_do_encode_alpha(png_row_infop row_info, png_bytep row, png_structrp png_ptr) +{ + png_uint_32 row_width = row_info->width; + + png_debug(1, "in png_do_encode_alpha"); + + if (row_info->color_type & PNG_COLOR_MASK_ALPHA) + { + if (row_info->bit_depth == 8) + { + PNG_CONST png_bytep table = png_ptr->gamma_from_1; + + if (table != NULL) + { + PNG_CONST int step = + (row_info->color_type & PNG_COLOR_MASK_COLOR) ? 4 : 2; + + /* The alpha channel is the last component: */ + row += step - 1; + + for (; row_width > 0; --row_width, row += step) + *row = table[*row]; + + return; + } + } + + else if (row_info->bit_depth == 16) + { + PNG_CONST png_uint_16pp table = png_ptr->gamma_16_from_1; + PNG_CONST int gamma_shift = png_ptr->gamma_shift; + + if (table != NULL) + { + PNG_CONST int step = + (row_info->color_type & PNG_COLOR_MASK_COLOR) ? 8 : 4; + + /* The alpha channel is the last component: */ + row += step - 2; + + for (; row_width > 0; --row_width, row += step) + { + png_uint_16 v; + + v = table[*(row + 1) >> gamma_shift][*row]; + *row = (png_byte)((v >> 8) & 0xff); + *(row + 1) = (png_byte)(v & 0xff); + } + + return; + } + } + } + + /* Only get to here if called with a weird row_info; no harm has been done, + * so just issue a warning. + */ + png_warning(png_ptr, "png_do_encode_alpha: unexpected call"); +} +#endif + +#ifdef PNG_READ_EXPAND_SUPPORTED +/* Expands a palette row to an RGB or RGBA row depending + * upon whether you supply trans and num_trans. + */ +static void +png_do_expand_palette(png_row_infop row_info, png_bytep row, + png_const_colorp palette, png_const_bytep trans_alpha, int num_trans) +{ + int shift, value; + png_bytep sp, dp; + png_uint_32 i; + png_uint_32 row_width=row_info->width; + + png_debug(1, "in png_do_expand_palette"); + + if (row_info->color_type == PNG_COLOR_TYPE_PALETTE) + { + if (row_info->bit_depth < 8) + { + switch (row_info->bit_depth) + { + case 1: + { + sp = row + (png_size_t)((row_width - 1) >> 3); + dp = row + (png_size_t)row_width - 1; + shift = 7 - (int)((row_width + 7) & 0x07); + for (i = 0; i < row_width; i++) + { + if ((*sp >> shift) & 0x01) + *dp = 1; + + else + *dp = 0; + + if (shift == 7) + { + shift = 0; + sp--; + } + + else + shift++; + + dp--; + } + break; + } + + case 2: + { + sp = row + (png_size_t)((row_width - 1) >> 2); + dp = row + (png_size_t)row_width - 1; + shift = (int)((3 - ((row_width + 3) & 0x03)) << 1); + for (i = 0; i < row_width; i++) + { + value = (*sp >> shift) & 0x03; + *dp = (png_byte)value; + if (shift == 6) + { + shift = 0; + sp--; + } + + else + shift += 2; + + dp--; + } + break; + } + + case 4: + { + sp = row + (png_size_t)((row_width - 1) >> 1); + dp = row + (png_size_t)row_width - 1; + shift = (int)((row_width & 0x01) << 2); + for (i = 0; i < row_width; i++) + { + value = (*sp >> shift) & 0x0f; + *dp = (png_byte)value; + if (shift == 4) + { + shift = 0; + sp--; + } + + else + shift += 4; + + dp--; + } + break; + } + + default: + break; + } + row_info->bit_depth = 8; + row_info->pixel_depth = 8; + row_info->rowbytes = row_width; + } + + if (row_info->bit_depth == 8) + { + { + if (num_trans > 0) + { + sp = row + (png_size_t)row_width - 1; + dp = row + (png_size_t)(row_width << 2) - 1; + + for (i = 0; i < row_width; i++) + { + if ((int)(*sp) >= num_trans) + *dp-- = 0xff; + + else + *dp-- = trans_alpha[*sp]; + + *dp-- = palette[*sp].blue; + *dp-- = palette[*sp].green; + *dp-- = palette[*sp].red; + sp--; + } + row_info->bit_depth = 8; + row_info->pixel_depth = 32; + row_info->rowbytes = row_width * 4; + row_info->color_type = 6; + row_info->channels = 4; + } + + else + { + sp = row + (png_size_t)row_width - 1; + dp = row + (png_size_t)(row_width * 3) - 1; + + for (i = 0; i < row_width; i++) + { + *dp-- = palette[*sp].blue; + *dp-- = palette[*sp].green; + *dp-- = palette[*sp].red; + sp--; + } + + row_info->bit_depth = 8; + row_info->pixel_depth = 24; + row_info->rowbytes = row_width * 3; + row_info->color_type = 2; + row_info->channels = 3; + } + } + } + } +} + +/* If the bit depth < 8, it is expanded to 8. Also, if the already + * expanded transparency value is supplied, an alpha channel is built. + */ +static void +png_do_expand(png_row_infop row_info, png_bytep row, + png_const_color_16p trans_color) +{ + int shift, value; + png_bytep sp, dp; + png_uint_32 i; + png_uint_32 row_width=row_info->width; + + png_debug(1, "in png_do_expand"); + + { + if (row_info->color_type == PNG_COLOR_TYPE_GRAY) + { + unsigned int gray = trans_color ? trans_color->gray : 0; + + if (row_info->bit_depth < 8) + { + switch (row_info->bit_depth) + { + case 1: + { + gray = (gray & 0x01) * 0xff; + sp = row + (png_size_t)((row_width - 1) >> 3); + dp = row + (png_size_t)row_width - 1; + shift = 7 - (int)((row_width + 7) & 0x07); + for (i = 0; i < row_width; i++) + { + if ((*sp >> shift) & 0x01) + *dp = 0xff; + + else + *dp = 0; + + if (shift == 7) + { + shift = 0; + sp--; + } + + else + shift++; + + dp--; + } + break; + } + + case 2: + { + gray = (gray & 0x03) * 0x55; + sp = row + (png_size_t)((row_width - 1) >> 2); + dp = row + (png_size_t)row_width - 1; + shift = (int)((3 - ((row_width + 3) & 0x03)) << 1); + for (i = 0; i < row_width; i++) + { + value = (*sp >> shift) & 0x03; + *dp = (png_byte)(value | (value << 2) | (value << 4) | + (value << 6)); + if (shift == 6) + { + shift = 0; + sp--; + } + + else + shift += 2; + + dp--; + } + break; + } + + case 4: + { + gray = (gray & 0x0f) * 0x11; + sp = row + (png_size_t)((row_width - 1) >> 1); + dp = row + (png_size_t)row_width - 1; + shift = (int)((1 - ((row_width + 1) & 0x01)) << 2); + for (i = 0; i < row_width; i++) + { + value = (*sp >> shift) & 0x0f; + *dp = (png_byte)(value | (value << 4)); + if (shift == 4) + { + shift = 0; + sp--; + } + + else + shift = 4; + + dp--; + } + break; + } + + default: + break; + } + + row_info->bit_depth = 8; + row_info->pixel_depth = 8; + row_info->rowbytes = row_width; + } + + if (trans_color != NULL) + { + if (row_info->bit_depth == 8) + { + gray = gray & 0xff; + sp = row + (png_size_t)row_width - 1; + dp = row + (png_size_t)(row_width << 1) - 1; + + for (i = 0; i < row_width; i++) + { + if (*sp == gray) + *dp-- = 0; + + else + *dp-- = 0xff; + + *dp-- = *sp--; + } + } + + else if (row_info->bit_depth == 16) + { + unsigned int gray_high = (gray >> 8) & 0xff; + unsigned int gray_low = gray & 0xff; + sp = row + row_info->rowbytes - 1; + dp = row + (row_info->rowbytes << 1) - 1; + for (i = 0; i < row_width; i++) + { + if (*(sp - 1) == gray_high && *(sp) == gray_low) + { + *dp-- = 0; + *dp-- = 0; + } + + else + { + *dp-- = 0xff; + *dp-- = 0xff; + } + + *dp-- = *sp--; + *dp-- = *sp--; + } + } + + row_info->color_type = PNG_COLOR_TYPE_GRAY_ALPHA; + row_info->channels = 2; + row_info->pixel_depth = (png_byte)(row_info->bit_depth << 1); + row_info->rowbytes = PNG_ROWBYTES(row_info->pixel_depth, + row_width); + } + } + else if (row_info->color_type == PNG_COLOR_TYPE_RGB && trans_color) + { + if (row_info->bit_depth == 8) + { + png_byte red = (png_byte)(trans_color->red & 0xff); + png_byte green = (png_byte)(trans_color->green & 0xff); + png_byte blue = (png_byte)(trans_color->blue & 0xff); + sp = row + (png_size_t)row_info->rowbytes - 1; + dp = row + (png_size_t)(row_width << 2) - 1; + for (i = 0; i < row_width; i++) + { + if (*(sp - 2) == red && *(sp - 1) == green && *(sp) == blue) + *dp-- = 0; + + else + *dp-- = 0xff; + + *dp-- = *sp--; + *dp-- = *sp--; + *dp-- = *sp--; + } + } + else if (row_info->bit_depth == 16) + { + png_byte red_high = (png_byte)((trans_color->red >> 8) & 0xff); + png_byte green_high = (png_byte)((trans_color->green >> 8) & 0xff); + png_byte blue_high = (png_byte)((trans_color->blue >> 8) & 0xff); + png_byte red_low = (png_byte)(trans_color->red & 0xff); + png_byte green_low = (png_byte)(trans_color->green & 0xff); + png_byte blue_low = (png_byte)(trans_color->blue & 0xff); + sp = row + row_info->rowbytes - 1; + dp = row + (png_size_t)(row_width << 3) - 1; + for (i = 0; i < row_width; i++) + { + if (*(sp - 5) == red_high && + *(sp - 4) == red_low && + *(sp - 3) == green_high && + *(sp - 2) == green_low && + *(sp - 1) == blue_high && + *(sp ) == blue_low) + { + *dp-- = 0; + *dp-- = 0; + } + + else + { + *dp-- = 0xff; + *dp-- = 0xff; + } + + *dp-- = *sp--; + *dp-- = *sp--; + *dp-- = *sp--; + *dp-- = *sp--; + *dp-- = *sp--; + *dp-- = *sp--; + } + } + row_info->color_type = PNG_COLOR_TYPE_RGB_ALPHA; + row_info->channels = 4; + row_info->pixel_depth = (png_byte)(row_info->bit_depth << 2); + row_info->rowbytes = PNG_ROWBYTES(row_info->pixel_depth, row_width); + } + } +} +#endif + +#ifdef PNG_READ_EXPAND_16_SUPPORTED +/* If the bit depth is 8 and the color type is not a palette type expand the + * whole row to 16 bits. Has no effect otherwise. + */ +static void +png_do_expand_16(png_row_infop row_info, png_bytep row) +{ + if (row_info->bit_depth == 8 && + row_info->color_type != PNG_COLOR_TYPE_PALETTE) + { + /* The row have a sequence of bytes containing [0..255] and we need + * to turn it into another row containing [0..65535], to do this we + * calculate: + * + * (input / 255) * 65535 + * + * Which happens to be exactly input * 257 and this can be achieved + * simply by byte replication in place (copying backwards). + */ + png_byte *sp = row + row_info->rowbytes; /* source, last byte + 1 */ + png_byte *dp = sp + row_info->rowbytes; /* destination, end + 1 */ + while (dp > sp) + dp[-2] = dp[-1] = *--sp, dp -= 2; + + row_info->rowbytes *= 2; + row_info->bit_depth = 16; + row_info->pixel_depth = (png_byte)(row_info->channels * 16); + } +} +#endif + +#ifdef PNG_READ_QUANTIZE_SUPPORTED +static void +png_do_quantize(png_row_infop row_info, png_bytep row, + png_const_bytep palette_lookup, png_const_bytep quantize_lookup) +{ + png_bytep sp, dp; + png_uint_32 i; + png_uint_32 row_width=row_info->width; + + png_debug(1, "in png_do_quantize"); + + if (row_info->bit_depth == 8) + { + if (row_info->color_type == PNG_COLOR_TYPE_RGB && palette_lookup) + { + int r, g, b, p; + sp = row; + dp = row; + for (i = 0; i < row_width; i++) + { + r = *sp++; + g = *sp++; + b = *sp++; + + /* This looks real messy, but the compiler will reduce + * it down to a reasonable formula. For example, with + * 5 bits per color, we get: + * p = (((r >> 3) & 0x1f) << 10) | + * (((g >> 3) & 0x1f) << 5) | + * ((b >> 3) & 0x1f); + */ + p = (((r >> (8 - PNG_QUANTIZE_RED_BITS)) & + ((1 << PNG_QUANTIZE_RED_BITS) - 1)) << + (PNG_QUANTIZE_GREEN_BITS + PNG_QUANTIZE_BLUE_BITS)) | + (((g >> (8 - PNG_QUANTIZE_GREEN_BITS)) & + ((1 << PNG_QUANTIZE_GREEN_BITS) - 1)) << + (PNG_QUANTIZE_BLUE_BITS)) | + ((b >> (8 - PNG_QUANTIZE_BLUE_BITS)) & + ((1 << PNG_QUANTIZE_BLUE_BITS) - 1)); + + *dp++ = palette_lookup[p]; + } + + row_info->color_type = PNG_COLOR_TYPE_PALETTE; + row_info->channels = 1; + row_info->pixel_depth = row_info->bit_depth; + row_info->rowbytes = PNG_ROWBYTES(row_info->pixel_depth, row_width); + } + + else if (row_info->color_type == PNG_COLOR_TYPE_RGB_ALPHA && + palette_lookup != NULL) + { + int r, g, b, p; + sp = row; + dp = row; + for (i = 0; i < row_width; i++) + { + r = *sp++; + g = *sp++; + b = *sp++; + sp++; + + p = (((r >> (8 - PNG_QUANTIZE_RED_BITS)) & + ((1 << PNG_QUANTIZE_RED_BITS) - 1)) << + (PNG_QUANTIZE_GREEN_BITS + PNG_QUANTIZE_BLUE_BITS)) | + (((g >> (8 - PNG_QUANTIZE_GREEN_BITS)) & + ((1 << PNG_QUANTIZE_GREEN_BITS) - 1)) << + (PNG_QUANTIZE_BLUE_BITS)) | + ((b >> (8 - PNG_QUANTIZE_BLUE_BITS)) & + ((1 << PNG_QUANTIZE_BLUE_BITS) - 1)); + + *dp++ = palette_lookup[p]; + } + + row_info->color_type = PNG_COLOR_TYPE_PALETTE; + row_info->channels = 1; + row_info->pixel_depth = row_info->bit_depth; + row_info->rowbytes = PNG_ROWBYTES(row_info->pixel_depth, row_width); + } + + else if (row_info->color_type == PNG_COLOR_TYPE_PALETTE && + quantize_lookup) + { + sp = row; + + for (i = 0; i < row_width; i++, sp++) + { + *sp = quantize_lookup[*sp]; + } + } + } +} +#endif /* PNG_READ_QUANTIZE_SUPPORTED */ + +/* Transform the row. The order of transformations is significant, + * and is very touchy. If you add a transformation, take care to + * decide how it fits in with the other transformations here. + */ +void /* PRIVATE */ +png_do_read_transformations(png_structrp png_ptr, png_row_infop row_info) +{ + png_debug(1, "in png_do_read_transformations"); + + if (png_ptr->row_buf == NULL) + { + /* Prior to 1.5.4 this output row/pass where the NULL pointer is, but this + * error is incredibly rare and incredibly easy to debug without this + * information. + */ + png_error(png_ptr, "NULL row buffer"); + } + + /* The following is debugging; prior to 1.5.4 the code was never compiled in; + * in 1.5.4 PNG_FLAG_DETECT_UNINITIALIZED was added and the macro + * PNG_WARN_UNINITIALIZED_ROW removed. In 1.6 the new flag is set only for + * all transformations, however in practice the ROW_INIT always gets done on + * demand, if necessary. + */ + if ((png_ptr->flags & PNG_FLAG_DETECT_UNINITIALIZED) != 0 && + !(png_ptr->flags & PNG_FLAG_ROW_INIT)) + { + /* Application has failed to call either png_read_start_image() or + * png_read_update_info() after setting transforms that expand pixels. + * This check added to libpng-1.2.19 (but not enabled until 1.5.4). + */ + png_error(png_ptr, "Uninitialized row"); + } + +#ifdef PNG_READ_EXPAND_SUPPORTED + if (png_ptr->transformations & PNG_EXPAND) + { + if (row_info->color_type == PNG_COLOR_TYPE_PALETTE) + { + png_do_expand_palette(row_info, png_ptr->row_buf + 1, + png_ptr->palette, png_ptr->trans_alpha, png_ptr->num_trans); + } + + else + { + if (png_ptr->num_trans && + (png_ptr->transformations & PNG_EXPAND_tRNS)) + png_do_expand(row_info, png_ptr->row_buf + 1, + &(png_ptr->trans_color)); + + else + png_do_expand(row_info, png_ptr->row_buf + 1, + NULL); + } + } +#endif + +#ifdef PNG_READ_STRIP_ALPHA_SUPPORTED + if ((png_ptr->transformations & PNG_STRIP_ALPHA) && + !(png_ptr->transformations & PNG_COMPOSE) && + (row_info->color_type == PNG_COLOR_TYPE_RGB_ALPHA || + row_info->color_type == PNG_COLOR_TYPE_GRAY_ALPHA)) + png_do_strip_channel(row_info, png_ptr->row_buf + 1, + 0 /* at_start == false, because SWAP_ALPHA happens later */); +#endif + +#ifdef PNG_READ_RGB_TO_GRAY_SUPPORTED + if (png_ptr->transformations & PNG_RGB_TO_GRAY) + { + int rgb_error = + png_do_rgb_to_gray(png_ptr, row_info, + png_ptr->row_buf + 1); + + if (rgb_error != 0) + { + png_ptr->rgb_to_gray_status=1; + if ((png_ptr->transformations & PNG_RGB_TO_GRAY) == + PNG_RGB_TO_GRAY_WARN) + png_warning(png_ptr, "png_do_rgb_to_gray found nongray pixel"); + + if ((png_ptr->transformations & PNG_RGB_TO_GRAY) == + PNG_RGB_TO_GRAY_ERR) + png_error(png_ptr, "png_do_rgb_to_gray found nongray pixel"); + } + } +#endif + +/* From Andreas Dilger e-mail to png-implement, 26 March 1998: + * + * In most cases, the "simple transparency" should be done prior to doing + * gray-to-RGB, or you will have to test 3x as many bytes to check if a + * pixel is transparent. You would also need to make sure that the + * transparency information is upgraded to RGB. + * + * To summarize, the current flow is: + * - Gray + simple transparency -> compare 1 or 2 gray bytes and composite + * with background "in place" if transparent, + * convert to RGB if necessary + * - Gray + alpha -> composite with gray background and remove alpha bytes, + * convert to RGB if necessary + * + * To support RGB backgrounds for gray images we need: + * - Gray + simple transparency -> convert to RGB + simple transparency, + * compare 3 or 6 bytes and composite with + * background "in place" if transparent + * (3x compare/pixel compared to doing + * composite with gray bkgrnd) + * - Gray + alpha -> convert to RGB + alpha, composite with background and + * remove alpha bytes (3x float + * operations/pixel compared with composite + * on gray background) + * + * Greg's change will do this. The reason it wasn't done before is for + * performance, as this increases the per-pixel operations. If we would check + * in advance if the background was gray or RGB, and position the gray-to-RGB + * transform appropriately, then it would save a lot of work/time. + */ + +#ifdef PNG_READ_GRAY_TO_RGB_SUPPORTED + /* If gray -> RGB, do so now only if background is non-gray; else do later + * for performance reasons + */ + if ((png_ptr->transformations & PNG_GRAY_TO_RGB) && + !(png_ptr->mode & PNG_BACKGROUND_IS_GRAY)) + png_do_gray_to_rgb(row_info, png_ptr->row_buf + 1); +#endif + +#if defined(PNG_READ_BACKGROUND_SUPPORTED) ||\ + defined(PNG_READ_ALPHA_MODE_SUPPORTED) + if (png_ptr->transformations & PNG_COMPOSE) + png_do_compose(row_info, png_ptr->row_buf + 1, png_ptr); +#endif + +#ifdef PNG_READ_GAMMA_SUPPORTED + if ((png_ptr->transformations & PNG_GAMMA) && +#ifdef PNG_READ_RGB_TO_GRAY_SUPPORTED + /* Because RGB_TO_GRAY does the gamma transform. */ + !(png_ptr->transformations & PNG_RGB_TO_GRAY) && +#endif +#if defined(PNG_READ_BACKGROUND_SUPPORTED) ||\ + defined(PNG_READ_ALPHA_MODE_SUPPORTED) + /* Because PNG_COMPOSE does the gamma transform if there is something to + * do (if there is an alpha channel or transparency.) + */ + !((png_ptr->transformations & PNG_COMPOSE) && + ((png_ptr->num_trans != 0) || + (png_ptr->color_type & PNG_COLOR_MASK_ALPHA))) && +#endif + /* Because png_init_read_transformations transforms the palette, unless + * RGB_TO_GRAY will do the transform. + */ + (png_ptr->color_type != PNG_COLOR_TYPE_PALETTE)) + png_do_gamma(row_info, png_ptr->row_buf + 1, png_ptr); +#endif + +#ifdef PNG_READ_STRIP_ALPHA_SUPPORTED + if ((png_ptr->transformations & PNG_STRIP_ALPHA) && + (png_ptr->transformations & PNG_COMPOSE) && + (row_info->color_type == PNG_COLOR_TYPE_RGB_ALPHA || + row_info->color_type == PNG_COLOR_TYPE_GRAY_ALPHA)) + png_do_strip_channel(row_info, png_ptr->row_buf + 1, + 0 /* at_start == false, because SWAP_ALPHA happens later */); +#endif + +#ifdef PNG_READ_ALPHA_MODE_SUPPORTED + if ((png_ptr->transformations & PNG_ENCODE_ALPHA) && + (row_info->color_type & PNG_COLOR_MASK_ALPHA)) + png_do_encode_alpha(row_info, png_ptr->row_buf + 1, png_ptr); +#endif + +#ifdef PNG_READ_SCALE_16_TO_8_SUPPORTED + if (png_ptr->transformations & PNG_SCALE_16_TO_8) + png_do_scale_16_to_8(row_info, png_ptr->row_buf + 1); +#endif + +#ifdef PNG_READ_STRIP_16_TO_8_SUPPORTED + /* There is no harm in doing both of these because only one has any effect, + * by putting the 'scale' option first if the app asks for scale (either by + * calling the API or in a TRANSFORM flag) this is what happens. + */ + if (png_ptr->transformations & PNG_16_TO_8) + png_do_chop(row_info, png_ptr->row_buf + 1); +#endif + +#ifdef PNG_READ_QUANTIZE_SUPPORTED + if (png_ptr->transformations & PNG_QUANTIZE) + { + png_do_quantize(row_info, png_ptr->row_buf + 1, + png_ptr->palette_lookup, png_ptr->quantize_index); + + if (row_info->rowbytes == 0) + png_error(png_ptr, "png_do_quantize returned rowbytes=0"); + } +#endif /* PNG_READ_QUANTIZE_SUPPORTED */ + +#ifdef PNG_READ_EXPAND_16_SUPPORTED + /* Do the expansion now, after all the arithmetic has been done. Notice + * that previous transformations can handle the PNG_EXPAND_16 flag if this + * is efficient (particularly true in the case of gamma correction, where + * better accuracy results faster!) + */ + if (png_ptr->transformations & PNG_EXPAND_16) + png_do_expand_16(row_info, png_ptr->row_buf + 1); +#endif + +#ifdef PNG_READ_GRAY_TO_RGB_SUPPORTED + /* NOTE: moved here in 1.5.4 (from much later in this list.) */ + if ((png_ptr->transformations & PNG_GRAY_TO_RGB) && + (png_ptr->mode & PNG_BACKGROUND_IS_GRAY)) + png_do_gray_to_rgb(row_info, png_ptr->row_buf + 1); +#endif + +#ifdef PNG_READ_INVERT_SUPPORTED + if (png_ptr->transformations & PNG_INVERT_MONO) + png_do_invert(row_info, png_ptr->row_buf + 1); +#endif + +#ifdef PNG_READ_INVERT_ALPHA_SUPPORTED + if (png_ptr->transformations & PNG_INVERT_ALPHA) + png_do_read_invert_alpha(row_info, png_ptr->row_buf + 1); +#endif + +#ifdef PNG_READ_SHIFT_SUPPORTED + if (png_ptr->transformations & PNG_SHIFT) + png_do_unshift(row_info, png_ptr->row_buf + 1, + &(png_ptr->shift)); +#endif + +#ifdef PNG_READ_PACK_SUPPORTED + if (png_ptr->transformations & PNG_PACK) + png_do_unpack(row_info, png_ptr->row_buf + 1); +#endif + +#ifdef PNG_READ_CHECK_FOR_INVALID_INDEX_SUPPORTED + /* Added at libpng-1.5.10 */ + if (row_info->color_type == PNG_COLOR_TYPE_PALETTE && + png_ptr->num_palette_max >= 0) + png_do_check_palette_indexes(png_ptr, row_info); +#endif + +#ifdef PNG_READ_BGR_SUPPORTED + if (png_ptr->transformations & PNG_BGR) + png_do_bgr(row_info, png_ptr->row_buf + 1); +#endif + +#ifdef PNG_READ_PACKSWAP_SUPPORTED + if (png_ptr->transformations & PNG_PACKSWAP) + png_do_packswap(row_info, png_ptr->row_buf + 1); +#endif + +#ifdef PNG_READ_FILLER_SUPPORTED + if (png_ptr->transformations & PNG_FILLER) + png_do_read_filler(row_info, png_ptr->row_buf + 1, + (png_uint_32)png_ptr->filler, png_ptr->flags); +#endif + +#ifdef PNG_READ_SWAP_ALPHA_SUPPORTED + if (png_ptr->transformations & PNG_SWAP_ALPHA) + png_do_read_swap_alpha(row_info, png_ptr->row_buf + 1); +#endif + +#ifdef PNG_READ_16BIT_SUPPORTED +#ifdef PNG_READ_SWAP_SUPPORTED + if (png_ptr->transformations & PNG_SWAP_BYTES) + png_do_swap(row_info, png_ptr->row_buf + 1); +#endif +#endif + +#ifdef PNG_READ_USER_TRANSFORM_SUPPORTED + if (png_ptr->transformations & PNG_USER_TRANSFORM) + { + if (png_ptr->read_user_transform_fn != NULL) + (*(png_ptr->read_user_transform_fn)) /* User read transform function */ + (png_ptr, /* png_ptr */ + row_info, /* row_info: */ + /* png_uint_32 width; width of row */ + /* png_size_t rowbytes; number of bytes in row */ + /* png_byte color_type; color type of pixels */ + /* png_byte bit_depth; bit depth of samples */ + /* png_byte channels; number of channels (1-4) */ + /* png_byte pixel_depth; bits per pixel (depth*channels) */ + png_ptr->row_buf + 1); /* start of pixel data for row */ +#ifdef PNG_USER_TRANSFORM_PTR_SUPPORTED + if (png_ptr->user_transform_depth) + row_info->bit_depth = png_ptr->user_transform_depth; + + if (png_ptr->user_transform_channels) + row_info->channels = png_ptr->user_transform_channels; +#endif + row_info->pixel_depth = (png_byte)(row_info->bit_depth * + row_info->channels); + + row_info->rowbytes = PNG_ROWBYTES(row_info->pixel_depth, row_info->width); + } +#endif +} + +#endif /* PNG_READ_TRANSFORMS_SUPPORTED */ +#endif /* PNG_READ_SUPPORTED */ diff --git a/png/pngrutil.c b/png/pngrutil.c new file mode 100644 index 0000000..cc52202 --- /dev/null +++ b/png/pngrutil.c @@ -0,0 +1,4469 @@ + +/* pngrutil.c - utilities to read a PNG file + * + * Last changed in libpng 1.6.11 [June 12, 2014] + * Copyright (c) 1998-2014 Glenn Randers-Pehrson + * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) + * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) + * + * This code is released under the libpng license. + * For conditions of distribution and use, see the disclaimer + * and license in png.h + * + * This file contains routines that are only called from within + * libpng itself during the course of reading an image. + */ + +#include "pngpriv.h" + +#ifdef PNG_READ_SUPPORTED + +png_uint_32 PNGAPI +png_get_uint_31(png_const_structrp png_ptr, png_const_bytep buf) +{ + png_uint_32 uval = png_get_uint_32(buf); + + if (uval > PNG_UINT_31_MAX) + png_error(png_ptr, "PNG unsigned integer out of range"); + + return (uval); +} + +#if defined(PNG_READ_gAMA_SUPPORTED) || defined(PNG_READ_cHRM_SUPPORTED) +/* The following is a variation on the above for use with the fixed + * point values used for gAMA and cHRM. Instead of png_error it + * issues a warning and returns (-1) - an invalid value because both + * gAMA and cHRM use *unsigned* integers for fixed point values. + */ +#define PNG_FIXED_ERROR (-1) + +static png_fixed_point /* PRIVATE */ +png_get_fixed_point(png_structrp png_ptr, png_const_bytep buf) +{ + png_uint_32 uval = png_get_uint_32(buf); + + if (uval <= PNG_UINT_31_MAX) + return (png_fixed_point)uval; /* known to be in range */ + + /* The caller can turn off the warning by passing NULL. */ + if (png_ptr != NULL) + png_warning(png_ptr, "PNG fixed point integer out of range"); + + return PNG_FIXED_ERROR; +} +#endif + +#ifdef PNG_READ_INT_FUNCTIONS_SUPPORTED +/* NOTE: the read macros will obscure these definitions, so that if + * PNG_USE_READ_MACROS is set the library will not use them internally, + * but the APIs will still be available externally. + * + * The parentheses around "PNGAPI function_name" in the following three + * functions are necessary because they allow the macros to co-exist with + * these (unused but exported) functions. + */ + +/* Grab an unsigned 32-bit integer from a buffer in big-endian format. */ +png_uint_32 (PNGAPI +png_get_uint_32)(png_const_bytep buf) +{ + png_uint_32 uval = + ((png_uint_32)(*(buf )) << 24) + + ((png_uint_32)(*(buf + 1)) << 16) + + ((png_uint_32)(*(buf + 2)) << 8) + + ((png_uint_32)(*(buf + 3)) ) ; + + return uval; +} + +/* Grab a signed 32-bit integer from a buffer in big-endian format. The + * data is stored in the PNG file in two's complement format and there + * is no guarantee that a 'png_int_32' is exactly 32 bits, therefore + * the following code does a two's complement to native conversion. + */ +png_int_32 (PNGAPI +png_get_int_32)(png_const_bytep buf) +{ + png_uint_32 uval = png_get_uint_32(buf); + if ((uval & 0x80000000) == 0) /* non-negative */ + return uval; + + uval = (uval ^ 0xffffffff) + 1; /* 2's complement: -x = ~x+1 */ + return -(png_int_32)uval; +} + +/* Grab an unsigned 16-bit integer from a buffer in big-endian format. */ +png_uint_16 (PNGAPI +png_get_uint_16)(png_const_bytep buf) +{ + /* ANSI-C requires an int value to accomodate at least 16 bits so this + * works and allows the compiler not to worry about possible narrowing + * on 32 bit systems. (Pre-ANSI systems did not make integers smaller + * than 16 bits either.) + */ + unsigned int val = + ((unsigned int)(*buf) << 8) + + ((unsigned int)(*(buf + 1))); + + return (png_uint_16)val; +} + +#endif /* PNG_READ_INT_FUNCTIONS_SUPPORTED */ + +/* Read and check the PNG file signature */ +void /* PRIVATE */ +png_read_sig(png_structrp png_ptr, png_inforp info_ptr) +{ + png_size_t num_checked, num_to_check; + + /* Exit if the user application does not expect a signature. */ + if (png_ptr->sig_bytes >= 8) + return; + + num_checked = png_ptr->sig_bytes; + num_to_check = 8 - num_checked; + +#ifdef PNG_IO_STATE_SUPPORTED + png_ptr->io_state = PNG_IO_READING | PNG_IO_SIGNATURE; +#endif + + /* The signature must be serialized in a single I/O call. */ + png_read_data(png_ptr, &(info_ptr->signature[num_checked]), num_to_check); + png_ptr->sig_bytes = 8; + + if (png_sig_cmp(info_ptr->signature, num_checked, num_to_check)) + { + if (num_checked < 4 && + png_sig_cmp(info_ptr->signature, num_checked, num_to_check - 4)) + png_error(png_ptr, "Not a PNG file"); + else + png_error(png_ptr, "PNG file corrupted by ASCII conversion"); + } + if (num_checked < 3) + png_ptr->mode |= PNG_HAVE_PNG_SIGNATURE; +} + +/* Read the chunk header (length + type name). + * Put the type name into png_ptr->chunk_name, and return the length. + */ +png_uint_32 /* PRIVATE */ +png_read_chunk_header(png_structrp png_ptr) +{ + png_byte buf[8]; + png_uint_32 length; + +#ifdef PNG_IO_STATE_SUPPORTED + png_ptr->io_state = PNG_IO_READING | PNG_IO_CHUNK_HDR; +#endif + + /* Read the length and the chunk name. + * This must be performed in a single I/O call. + */ + png_read_data(png_ptr, buf, 8); + length = png_get_uint_31(png_ptr, buf); + + /* Put the chunk name into png_ptr->chunk_name. */ + png_ptr->chunk_name = PNG_CHUNK_FROM_STRING(buf+4); + + png_debug2(0, "Reading %lx chunk, length = %lu", + (unsigned long)png_ptr->chunk_name, (unsigned long)length); + + /* Reset the crc and run it over the chunk name. */ + png_reset_crc(png_ptr); + png_calculate_crc(png_ptr, buf + 4, 4); + + /* Check to see if chunk name is valid. */ + png_check_chunk_name(png_ptr, png_ptr->chunk_name); + +#ifdef PNG_IO_STATE_SUPPORTED + png_ptr->io_state = PNG_IO_READING | PNG_IO_CHUNK_DATA; +#endif + + return length; +} + +/* Read data, and (optionally) run it through the CRC. */ +void /* PRIVATE */ +png_crc_read(png_structrp png_ptr, png_bytep buf, png_uint_32 length) +{ + if (png_ptr == NULL) + return; + + png_read_data(png_ptr, buf, length); + png_calculate_crc(png_ptr, buf, length); +} + +/* Optionally skip data and then check the CRC. Depending on whether we + * are reading an ancillary or critical chunk, and how the program has set + * things up, we may calculate the CRC on the data and print a message. + * Returns '1' if there was a CRC error, '0' otherwise. + */ +int /* PRIVATE */ +png_crc_finish(png_structrp png_ptr, png_uint_32 skip) +{ + /* The size of the local buffer for inflate is a good guess as to a + * reasonable size to use for buffering reads from the application. + */ + while (skip > 0) + { + png_uint_32 len; + png_byte tmpbuf[PNG_INFLATE_BUF_SIZE]; + + len = (sizeof tmpbuf); + if (len > skip) + len = skip; + skip -= len; + + png_crc_read(png_ptr, tmpbuf, len); + } + + if (png_crc_error(png_ptr)) + { + if (PNG_CHUNK_ANCILLARY(png_ptr->chunk_name) ? + !(png_ptr->flags & PNG_FLAG_CRC_ANCILLARY_NOWARN) : + (png_ptr->flags & PNG_FLAG_CRC_CRITICAL_USE)) + { + png_chunk_warning(png_ptr, "CRC error"); + } + + else + png_chunk_error(png_ptr, "CRC error"); + + return (1); + } + + return (0); +} + +/* Compare the CRC stored in the PNG file with that calculated by libpng from + * the data it has read thus far. + */ +int /* PRIVATE */ +png_crc_error(png_structrp png_ptr) +{ + png_byte crc_bytes[4]; + png_uint_32 crc; + int need_crc = 1; + + if (PNG_CHUNK_ANCILLARY(png_ptr->chunk_name)) + { + if ((png_ptr->flags & PNG_FLAG_CRC_ANCILLARY_MASK) == + (PNG_FLAG_CRC_ANCILLARY_USE | PNG_FLAG_CRC_ANCILLARY_NOWARN)) + need_crc = 0; + } + + else /* critical */ + { + if (png_ptr->flags & PNG_FLAG_CRC_CRITICAL_IGNORE) + need_crc = 0; + } + +#ifdef PNG_IO_STATE_SUPPORTED + png_ptr->io_state = PNG_IO_READING | PNG_IO_CHUNK_CRC; +#endif + + /* The chunk CRC must be serialized in a single I/O call. */ + png_read_data(png_ptr, crc_bytes, 4); + + if (need_crc != 0) + { + crc = png_get_uint_32(crc_bytes); + return ((int)(crc != png_ptr->crc)); + } + + else + return (0); +} + +#if defined(PNG_READ_iCCP_SUPPORTED) || defined(PNG_READ_iTXt_SUPPORTED) ||\ + defined(PNG_READ_pCAL_SUPPORTED) || defined(PNG_READ_sCAL_SUPPORTED) ||\ + defined(PNG_READ_sPLT_SUPPORTED) || defined(PNG_READ_tEXt_SUPPORTED) ||\ + defined(PNG_READ_zTXt_SUPPORTED) || defined(PNG_SEQUENTIAL_READ_SUPPORTED) +/* Manage the read buffer; this simply reallocates the buffer if it is not small + * enough (or if it is not allocated). The routine returns a pointer to the + * buffer; if an error occurs and 'warn' is set the routine returns NULL, else + * it will call png_error (via png_malloc) on failure. (warn == 2 means + * 'silent'). + */ +static png_bytep +png_read_buffer(png_structrp png_ptr, png_alloc_size_t new_size, int warn) +{ + png_bytep buffer = png_ptr->read_buffer; + + if (buffer != NULL && new_size > png_ptr->read_buffer_size) + { + png_ptr->read_buffer = NULL; + png_ptr->read_buffer = NULL; + png_ptr->read_buffer_size = 0; + png_free(png_ptr, buffer); + buffer = NULL; + } + + if (buffer == NULL) + { + buffer = png_voidcast(png_bytep, png_malloc_base(png_ptr, new_size)); + + if (buffer != NULL) + { + png_ptr->read_buffer = buffer; + png_ptr->read_buffer_size = new_size; + } + + else if (warn < 2) /* else silent */ + { + if (warn != 0) + png_chunk_warning(png_ptr, "insufficient memory to read chunk"); + + else + png_chunk_error(png_ptr, "insufficient memory to read chunk"); + } + } + + return buffer; +} +#endif /* PNG_READ_iCCP|iTXt|pCAL|sCAL|sPLT|tEXt|zTXt|SEQUENTIAL_READ */ + +/* png_inflate_claim: claim the zstream for some nefarious purpose that involves + * decompression. Returns Z_OK on success, else a zlib error code. It checks + * the owner but, in final release builds, just issues a warning if some other + * chunk apparently owns the stream. Prior to release it does a png_error. + */ +static int +png_inflate_claim(png_structrp png_ptr, png_uint_32 owner) +{ + if (png_ptr->zowner != 0) + { + char msg[64]; + + PNG_STRING_FROM_CHUNK(msg, png_ptr->zowner); + /* So the message that results is " using zstream"; this is an + * internal error, but is very useful for debugging. i18n requirements + * are minimal. + */ + (void)png_safecat(msg, (sizeof msg), 4, " using zstream"); +# if PNG_LIBPNG_BUILD_BASE_TYPE >= PNG_LIBPNG_BUILD_RC + png_chunk_warning(png_ptr, msg); + png_ptr->zowner = 0; +# else + png_chunk_error(png_ptr, msg); +# endif + } + + /* Implementation note: unlike 'png_deflate_claim' this internal function + * does not take the size of the data as an argument. Some efficiency could + * be gained by using this when it is known *if* the zlib stream itself does + * not record the number; however, this is an illusion: the original writer + * of the PNG may have selected a lower window size, and we really must + * follow that because, for systems with with limited capabilities, we + * would otherwise reject the application's attempts to use a smaller window + * size (zlib doesn't have an interface to say "this or lower"!). + * + * inflateReset2 was added to zlib 1.2.4; before this the window could not be + * reset, therefore it is necessary to always allocate the maximum window + * size with earlier zlibs just in case later compressed chunks need it. + */ + { + int ret; /* zlib return code */ +# if PNG_ZLIB_VERNUM >= 0x1240 + +# if defined(PNG_SET_OPTION_SUPPORTED) && \ + defined(PNG_MAXIMUM_INFLATE_WINDOW) + int window_bits; + + if (((png_ptr->options >> PNG_MAXIMUM_INFLATE_WINDOW) & 3) == + PNG_OPTION_ON) + window_bits = 15; + + else + window_bits = 0; +# else +# define window_bits 0 +# endif +# endif + + /* Set this for safety, just in case the previous owner left pointers to + * memory allocations. + */ + png_ptr->zstream.next_in = NULL; + png_ptr->zstream.avail_in = 0; + png_ptr->zstream.next_out = NULL; + png_ptr->zstream.avail_out = 0; + + if (png_ptr->flags & PNG_FLAG_ZSTREAM_INITIALIZED) + { +# if PNG_ZLIB_VERNUM < 0x1240 + ret = inflateReset(&png_ptr->zstream); +# else + ret = inflateReset2(&png_ptr->zstream, window_bits); +# endif + } + + else + { +# if PNG_ZLIB_VERNUM < 0x1240 + ret = inflateInit(&png_ptr->zstream); +# else + ret = inflateInit2(&png_ptr->zstream, window_bits); +# endif + + if (ret == Z_OK) + png_ptr->flags |= PNG_FLAG_ZSTREAM_INITIALIZED; + } + + if (ret == Z_OK) + png_ptr->zowner = owner; + + else + png_zstream_error(png_ptr, ret); + + return ret; + } + +# ifdef window_bits +# undef window_bits +# endif +} + +#ifdef PNG_READ_COMPRESSED_TEXT_SUPPORTED +/* png_inflate now returns zlib error codes including Z_OK and Z_STREAM_END to + * allow the caller to do multiple calls if required. If the 'finish' flag is + * set Z_FINISH will be passed to the final inflate() call and Z_STREAM_END must + * be returned or there has been a problem, otherwise Z_SYNC_FLUSH is used and + * Z_OK or Z_STREAM_END will be returned on success. + * + * The input and output sizes are updated to the actual amounts of data consumed + * or written, not the amount available (as in a z_stream). The data pointers + * are not changed, so the next input is (data+input_size) and the next + * available output is (output+output_size). + */ +static int +png_inflate(png_structrp png_ptr, png_uint_32 owner, int finish, + /* INPUT: */ png_const_bytep input, png_uint_32p input_size_ptr, + /* OUTPUT: */ png_bytep output, png_alloc_size_t *output_size_ptr) +{ + if (png_ptr->zowner == owner) /* Else not claimed */ + { + int ret; + png_alloc_size_t avail_out = *output_size_ptr; + png_uint_32 avail_in = *input_size_ptr; + + /* zlib can't necessarily handle more than 65535 bytes at once (i.e. it + * can't even necessarily handle 65536 bytes) because the type uInt is + * "16 bits or more". Consequently it is necessary to chunk the input to + * zlib. This code uses ZLIB_IO_MAX, from pngpriv.h, as the maximum (the + * maximum value that can be stored in a uInt.) It is possible to set + * ZLIB_IO_MAX to a lower value in pngpriv.h and this may sometimes have + * a performance advantage, because it reduces the amount of data accessed + * at each step and that may give the OS more time to page it in. + */ + png_ptr->zstream.next_in = PNGZ_INPUT_CAST(input); + /* avail_in and avail_out are set below from 'size' */ + png_ptr->zstream.avail_in = 0; + png_ptr->zstream.avail_out = 0; + + /* Read directly into the output if it is available (this is set to + * a local buffer below if output is NULL). + */ + if (output != NULL) + png_ptr->zstream.next_out = output; + + do + { + uInt avail; + Byte local_buffer[PNG_INFLATE_BUF_SIZE]; + + /* zlib INPUT BUFFER */ + /* The setting of 'avail_in' used to be outside the loop; by setting it + * inside it is possible to chunk the input to zlib and simply rely on + * zlib to advance the 'next_in' pointer. This allows arbitrary + * amounts of data to be passed through zlib at the unavoidable cost of + * requiring a window save (memcpy of up to 32768 output bytes) + * every ZLIB_IO_MAX input bytes. + */ + avail_in += png_ptr->zstream.avail_in; /* not consumed last time */ + + avail = ZLIB_IO_MAX; + + if (avail_in < avail) + avail = (uInt)avail_in; /* safe: < than ZLIB_IO_MAX */ + + avail_in -= avail; + png_ptr->zstream.avail_in = avail; + + /* zlib OUTPUT BUFFER */ + avail_out += png_ptr->zstream.avail_out; /* not written last time */ + + avail = ZLIB_IO_MAX; /* maximum zlib can process */ + + if (output == NULL) + { + /* Reset the output buffer each time round if output is NULL and + * make available the full buffer, up to 'remaining_space' + */ + png_ptr->zstream.next_out = local_buffer; + if ((sizeof local_buffer) < avail) + avail = (sizeof local_buffer); + } + + if (avail_out < avail) + avail = (uInt)avail_out; /* safe: < ZLIB_IO_MAX */ + + png_ptr->zstream.avail_out = avail; + avail_out -= avail; + + /* zlib inflate call */ + /* In fact 'avail_out' may be 0 at this point, that happens at the end + * of the read when the final LZ end code was not passed at the end of + * the previous chunk of input data. Tell zlib if we have reached the + * end of the output buffer. + */ + ret = inflate(&png_ptr->zstream, avail_out > 0 ? Z_NO_FLUSH : + (finish ? Z_FINISH : Z_SYNC_FLUSH)); + } while (ret == Z_OK); + + /* For safety kill the local buffer pointer now */ + if (output == NULL) + png_ptr->zstream.next_out = NULL; + + /* Claw back the 'size' and 'remaining_space' byte counts. */ + avail_in += png_ptr->zstream.avail_in; + avail_out += png_ptr->zstream.avail_out; + + /* Update the input and output sizes; the updated values are the amount + * consumed or written, effectively the inverse of what zlib uses. + */ + if (avail_out > 0) + *output_size_ptr -= avail_out; + + if (avail_in > 0) + *input_size_ptr -= avail_in; + + /* Ensure png_ptr->zstream.msg is set (even in the success case!) */ + png_zstream_error(png_ptr, ret); + return ret; + } + + else + { + /* This is a bad internal error. The recovery assigns to the zstream msg + * pointer, which is not owned by the caller, but this is safe; it's only + * used on errors! + */ + png_ptr->zstream.msg = PNGZ_MSG_CAST("zstream unclaimed"); + return Z_STREAM_ERROR; + } +} + +/* + * Decompress trailing data in a chunk. The assumption is that read_buffer + * points at an allocated area holding the contents of a chunk with a + * trailing compressed part. What we get back is an allocated area + * holding the original prefix part and an uncompressed version of the + * trailing part (the malloc area passed in is freed). + */ +static int +png_decompress_chunk(png_structrp png_ptr, + png_uint_32 chunklength, png_uint_32 prefix_size, + png_alloc_size_t *newlength /* must be initialized to the maximum! */, + int terminate /*add a '\0' to the end of the uncompressed data*/) +{ + /* TODO: implement different limits for different types of chunk. + * + * The caller supplies *newlength set to the maximum length of the + * uncompressed data, but this routine allocates space for the prefix and + * maybe a '\0' terminator too. We have to assume that 'prefix_size' is + * limited only by the maximum chunk size. + */ + png_alloc_size_t limit = PNG_SIZE_MAX; + +# ifdef PNG_SET_CHUNK_MALLOC_LIMIT_SUPPORTED + if (png_ptr->user_chunk_malloc_max > 0 && + png_ptr->user_chunk_malloc_max < limit) + limit = png_ptr->user_chunk_malloc_max; +# elif PNG_USER_CHUNK_MALLOC_MAX > 0 + if (PNG_USER_CHUNK_MALLOC_MAX < limit) + limit = PNG_USER_CHUNK_MALLOC_MAX; +# endif + + if (limit >= prefix_size + (terminate != 0)) + { + int ret; + + limit -= prefix_size + (terminate != 0); + + if (limit < *newlength) + *newlength = limit; + + /* Now try to claim the stream. */ + ret = png_inflate_claim(png_ptr, png_ptr->chunk_name); + + if (ret == Z_OK) + { + png_uint_32 lzsize = chunklength - prefix_size; + + ret = png_inflate(png_ptr, png_ptr->chunk_name, 1/*finish*/, + /* input: */ png_ptr->read_buffer + prefix_size, &lzsize, + /* output: */ NULL, newlength); + + if (ret == Z_STREAM_END) + { + /* Use 'inflateReset' here, not 'inflateReset2' because this + * preserves the previously decided window size (otherwise it would + * be necessary to store the previous window size.) In practice + * this doesn't matter anyway, because png_inflate will call inflate + * with Z_FINISH in almost all cases, so the window will not be + * maintained. + */ + if (inflateReset(&png_ptr->zstream) == Z_OK) + { + /* Because of the limit checks above we know that the new, + * expanded, size will fit in a size_t (let alone an + * png_alloc_size_t). Use png_malloc_base here to avoid an + * extra OOM message. + */ + png_alloc_size_t new_size = *newlength; + png_alloc_size_t buffer_size = prefix_size + new_size + + (terminate != 0); + png_bytep text = png_voidcast(png_bytep, png_malloc_base(png_ptr, + buffer_size)); + + if (text != NULL) + { + ret = png_inflate(png_ptr, png_ptr->chunk_name, 1/*finish*/, + png_ptr->read_buffer + prefix_size, &lzsize, + text + prefix_size, newlength); + + if (ret == Z_STREAM_END) + { + if (new_size == *newlength) + { + if (terminate != 0) + text[prefix_size + *newlength] = 0; + + if (prefix_size > 0) + memcpy(text, png_ptr->read_buffer, prefix_size); + + { + png_bytep old_ptr = png_ptr->read_buffer; + + png_ptr->read_buffer = text; + png_ptr->read_buffer_size = buffer_size; + text = old_ptr; /* freed below */ + } + } + + else + { + /* The size changed on the second read, there can be no + * guarantee that anything is correct at this point. + * The 'msg' pointer has been set to "unexpected end of + * LZ stream", which is fine, but return an error code + * that the caller won't accept. + */ + ret = PNG_UNEXPECTED_ZLIB_RETURN; + } + } + + else if (ret == Z_OK) + ret = PNG_UNEXPECTED_ZLIB_RETURN; /* for safety */ + + /* Free the text pointer (this is the old read_buffer on + * success) + */ + png_free(png_ptr, text); + + /* This really is very benign, but it's still an error because + * the extra space may otherwise be used as a Trojan Horse. + */ + if (ret == Z_STREAM_END && + chunklength - prefix_size != lzsize) + png_chunk_benign_error(png_ptr, "extra compressed data"); + } + + else + { + /* Out of memory allocating the buffer */ + ret = Z_MEM_ERROR; + png_zstream_error(png_ptr, Z_MEM_ERROR); + } + } + + else + { + /* inflateReset failed, store the error message */ + png_zstream_error(png_ptr, ret); + + if (ret == Z_STREAM_END) + ret = PNG_UNEXPECTED_ZLIB_RETURN; + } + } + + else if (ret == Z_OK) + ret = PNG_UNEXPECTED_ZLIB_RETURN; + + /* Release the claimed stream */ + png_ptr->zowner = 0; + } + + else /* the claim failed */ if (ret == Z_STREAM_END) /* impossible! */ + ret = PNG_UNEXPECTED_ZLIB_RETURN; + + return ret; + } + + else + { + /* Application/configuration limits exceeded */ + png_zstream_error(png_ptr, Z_MEM_ERROR); + return Z_MEM_ERROR; + } +} +#endif /* PNG_READ_COMPRESSED_TEXT_SUPPORTED */ + +#ifdef PNG_READ_iCCP_SUPPORTED +/* Perform a partial read and decompress, producing 'avail_out' bytes and + * reading from the current chunk as required. + */ +static int +png_inflate_read(png_structrp png_ptr, png_bytep read_buffer, uInt read_size, + png_uint_32p chunk_bytes, png_bytep next_out, png_alloc_size_t *out_size, + int finish) +{ + if (png_ptr->zowner == png_ptr->chunk_name) + { + int ret; + + /* next_in and avail_in must have been initialized by the caller. */ + png_ptr->zstream.next_out = next_out; + png_ptr->zstream.avail_out = 0; /* set in the loop */ + + do + { + if (png_ptr->zstream.avail_in == 0) + { + if (read_size > *chunk_bytes) + read_size = (uInt)*chunk_bytes; + *chunk_bytes -= read_size; + + if (read_size > 0) + png_crc_read(png_ptr, read_buffer, read_size); + + png_ptr->zstream.next_in = read_buffer; + png_ptr->zstream.avail_in = read_size; + } + + if (png_ptr->zstream.avail_out == 0) + { + uInt avail = ZLIB_IO_MAX; + if (avail > *out_size) + avail = (uInt)*out_size; + *out_size -= avail; + + png_ptr->zstream.avail_out = avail; + } + + /* Use Z_SYNC_FLUSH when there is no more chunk data to ensure that all + * the available output is produced; this allows reading of truncated + * streams. + */ + ret = inflate(&png_ptr->zstream, + *chunk_bytes > 0 ? Z_NO_FLUSH : (finish ? Z_FINISH : Z_SYNC_FLUSH)); + } + while (ret == Z_OK && (*out_size > 0 || png_ptr->zstream.avail_out > 0)); + + *out_size += png_ptr->zstream.avail_out; + png_ptr->zstream.avail_out = 0; /* Should not be required, but is safe */ + + /* Ensure the error message pointer is always set: */ + png_zstream_error(png_ptr, ret); + return ret; + } + + else + { + png_ptr->zstream.msg = PNGZ_MSG_CAST("zstream unclaimed"); + return Z_STREAM_ERROR; + } +} +#endif + +/* Read and check the IDHR chunk */ +void /* PRIVATE */ +png_handle_IHDR(png_structrp png_ptr, png_inforp info_ptr, png_uint_32 length) +{ + png_byte buf[13]; + png_uint_32 width, height; + int bit_depth, color_type, compression_type, filter_type; + int interlace_type; + + png_debug(1, "in png_handle_IHDR"); + + if (png_ptr->mode & PNG_HAVE_IHDR) + png_chunk_error(png_ptr, "out of place"); + + /* Check the length */ + if (length != 13) + png_chunk_error(png_ptr, "invalid"); + + png_ptr->mode |= PNG_HAVE_IHDR; + + png_crc_read(png_ptr, buf, 13); + png_crc_finish(png_ptr, 0); + + width = png_get_uint_31(png_ptr, buf); + height = png_get_uint_31(png_ptr, buf + 4); + bit_depth = buf[8]; + color_type = buf[9]; + compression_type = buf[10]; + filter_type = buf[11]; + interlace_type = buf[12]; + + /* Set internal variables */ + png_ptr->width = width; + png_ptr->height = height; + png_ptr->bit_depth = (png_byte)bit_depth; + png_ptr->interlaced = (png_byte)interlace_type; + png_ptr->color_type = (png_byte)color_type; +#ifdef PNG_MNG_FEATURES_SUPPORTED + png_ptr->filter_type = (png_byte)filter_type; +#endif + png_ptr->compression_type = (png_byte)compression_type; + + /* Find number of channels */ + switch (png_ptr->color_type) + { + default: /* invalid, png_set_IHDR calls png_error */ + case PNG_COLOR_TYPE_GRAY: + case PNG_COLOR_TYPE_PALETTE: + png_ptr->channels = 1; + break; + + case PNG_COLOR_TYPE_RGB: + png_ptr->channels = 3; + break; + + case PNG_COLOR_TYPE_GRAY_ALPHA: + png_ptr->channels = 2; + break; + + case PNG_COLOR_TYPE_RGB_ALPHA: + png_ptr->channels = 4; + break; + } + + /* Set up other useful info */ + png_ptr->pixel_depth = (png_byte)(png_ptr->bit_depth * + png_ptr->channels); + png_ptr->rowbytes = PNG_ROWBYTES(png_ptr->pixel_depth, png_ptr->width); + png_debug1(3, "bit_depth = %d", png_ptr->bit_depth); + png_debug1(3, "channels = %d", png_ptr->channels); + png_debug1(3, "rowbytes = %lu", (unsigned long)png_ptr->rowbytes); + png_set_IHDR(png_ptr, info_ptr, width, height, bit_depth, + color_type, interlace_type, compression_type, filter_type); +} + +/* Read and check the palette */ +void /* PRIVATE */ +png_handle_PLTE(png_structrp png_ptr, png_inforp info_ptr, png_uint_32 length) +{ + png_color palette[PNG_MAX_PALETTE_LENGTH]; + int num, i; +#ifdef PNG_POINTER_INDEXING_SUPPORTED + png_colorp pal_ptr; +#endif + + png_debug(1, "in png_handle_PLTE"); + + if (!(png_ptr->mode & PNG_HAVE_IHDR)) + png_chunk_error(png_ptr, "missing IHDR"); + + /* Moved to before the 'after IDAT' check below because otherwise duplicate + * PLTE chunks are potentially ignored (the spec says there shall not be more + * than one PLTE, the error is not treated as benign, so this check trumps + * the requirement that PLTE appears before IDAT.) + */ + else if (png_ptr->mode & PNG_HAVE_PLTE) + png_chunk_error(png_ptr, "duplicate"); + + else if (png_ptr->mode & PNG_HAVE_IDAT) + { + /* This is benign because the non-benign error happened before, when an + * IDAT was encountered in a color-mapped image with no PLTE. + */ + png_crc_finish(png_ptr, length); + png_chunk_benign_error(png_ptr, "out of place"); + return; + } + + png_ptr->mode |= PNG_HAVE_PLTE; + + if (!(png_ptr->color_type & PNG_COLOR_MASK_COLOR)) + { + png_crc_finish(png_ptr, length); + png_chunk_benign_error(png_ptr, "ignored in grayscale PNG"); + return; + } + +#ifndef PNG_READ_OPT_PLTE_SUPPORTED + if (png_ptr->color_type != PNG_COLOR_TYPE_PALETTE) + { + png_crc_finish(png_ptr, length); + return; + } +#endif + + if (length > 3*PNG_MAX_PALETTE_LENGTH || length % 3) + { + png_crc_finish(png_ptr, length); + + if (png_ptr->color_type != PNG_COLOR_TYPE_PALETTE) + png_chunk_benign_error(png_ptr, "invalid"); + + else + png_chunk_error(png_ptr, "invalid"); + + return; + } + + /* The cast is safe because 'length' is less than 3*PNG_MAX_PALETTE_LENGTH */ + num = (int)length / 3; + +#ifdef PNG_POINTER_INDEXING_SUPPORTED + for (i = 0, pal_ptr = palette; i < num; i++, pal_ptr++) + { + png_byte buf[3]; + + png_crc_read(png_ptr, buf, 3); + pal_ptr->red = buf[0]; + pal_ptr->green = buf[1]; + pal_ptr->blue = buf[2]; + } +#else + for (i = 0; i < num; i++) + { + png_byte buf[3]; + + png_crc_read(png_ptr, buf, 3); + /* Don't depend upon png_color being any order */ + palette[i].red = buf[0]; + palette[i].green = buf[1]; + palette[i].blue = buf[2]; + } +#endif + + /* If we actually need the PLTE chunk (ie for a paletted image), we do + * whatever the normal CRC configuration tells us. However, if we + * have an RGB image, the PLTE can be considered ancillary, so + * we will act as though it is. + */ +#ifndef PNG_READ_OPT_PLTE_SUPPORTED + if (png_ptr->color_type == PNG_COLOR_TYPE_PALETTE) +#endif + { + png_crc_finish(png_ptr, 0); + } + +#ifndef PNG_READ_OPT_PLTE_SUPPORTED + else if (png_crc_error(png_ptr)) /* Only if we have a CRC error */ + { + /* If we don't want to use the data from an ancillary chunk, + * we have two options: an error abort, or a warning and we + * ignore the data in this chunk (which should be OK, since + * it's considered ancillary for a RGB or RGBA image). + * + * IMPLEMENTATION NOTE: this is only here because png_crc_finish uses the + * chunk type to determine whether to check the ancillary or the critical + * flags. + */ + if (!(png_ptr->flags & PNG_FLAG_CRC_ANCILLARY_USE)) + { + if (png_ptr->flags & PNG_FLAG_CRC_ANCILLARY_NOWARN) + return; + + else + png_chunk_error(png_ptr, "CRC error"); + } + + /* Otherwise, we (optionally) emit a warning and use the chunk. */ + else if (!(png_ptr->flags & PNG_FLAG_CRC_ANCILLARY_NOWARN)) + png_chunk_warning(png_ptr, "CRC error"); + } +#endif + + /* TODO: png_set_PLTE has the side effect of setting png_ptr->palette to its + * own copy of the palette. This has the side effect that when png_start_row + * is called (this happens after any call to png_read_update_info) the + * info_ptr palette gets changed. This is extremely unexpected and + * confusing. + * + * Fix this by not sharing the palette in this way. + */ + png_set_PLTE(png_ptr, info_ptr, palette, num); + + /* The three chunks, bKGD, hIST and tRNS *must* appear after PLTE and before + * IDAT. Prior to 1.6.0 this was not checked; instead the code merely + * checked the apparent validity of a tRNS chunk inserted before PLTE on a + * palette PNG. 1.6.0 attempts to rigorously follow the standard and + * therefore does a benign error if the erroneous condition is detected *and* + * cancels the tRNS if the benign error returns. The alternative is to + * amend the standard since it would be rather hypocritical of the standards + * maintainers to ignore it. + */ +#ifdef PNG_READ_tRNS_SUPPORTED + if (png_ptr->num_trans > 0 || + (info_ptr != NULL && (info_ptr->valid & PNG_INFO_tRNS) != 0)) + { + /* Cancel this because otherwise it would be used if the transforms + * require it. Don't cancel the 'valid' flag because this would prevent + * detection of duplicate chunks. + */ + png_ptr->num_trans = 0; + + if (info_ptr != NULL) + info_ptr->num_trans = 0; + + png_chunk_benign_error(png_ptr, "tRNS must be after"); + } +#endif + +#ifdef PNG_READ_hIST_SUPPORTED + if (info_ptr != NULL && (info_ptr->valid & PNG_INFO_hIST) != 0) + png_chunk_benign_error(png_ptr, "hIST must be after"); +#endif + +#ifdef PNG_READ_bKGD_SUPPORTED + if (info_ptr != NULL && (info_ptr->valid & PNG_INFO_bKGD) != 0) + png_chunk_benign_error(png_ptr, "bKGD must be after"); +#endif +} + +void /* PRIVATE */ +png_handle_IEND(png_structrp png_ptr, png_inforp info_ptr, png_uint_32 length) +{ + png_debug(1, "in png_handle_IEND"); + + if (!(png_ptr->mode & PNG_HAVE_IHDR) || !(png_ptr->mode & PNG_HAVE_IDAT)) + png_chunk_error(png_ptr, "out of place"); + + png_ptr->mode |= (PNG_AFTER_IDAT | PNG_HAVE_IEND); + + png_crc_finish(png_ptr, length); + + if (length != 0) + png_chunk_benign_error(png_ptr, "invalid"); + + PNG_UNUSED(info_ptr) +} + +#ifdef PNG_READ_gAMA_SUPPORTED +void /* PRIVATE */ +png_handle_gAMA(png_structrp png_ptr, png_inforp info_ptr, png_uint_32 length) +{ + png_fixed_point igamma; + png_byte buf[4]; + + png_debug(1, "in png_handle_gAMA"); + + if (!(png_ptr->mode & PNG_HAVE_IHDR)) + png_chunk_error(png_ptr, "missing IHDR"); + + else if (png_ptr->mode & (PNG_HAVE_IDAT|PNG_HAVE_PLTE)) + { + png_crc_finish(png_ptr, length); + png_chunk_benign_error(png_ptr, "out of place"); + return; + } + + if (length != 4) + { + png_crc_finish(png_ptr, length); + png_chunk_benign_error(png_ptr, "invalid"); + return; + } + + png_crc_read(png_ptr, buf, 4); + + if (png_crc_finish(png_ptr, 0)) + return; + + igamma = png_get_fixed_point(NULL, buf); + + png_colorspace_set_gamma(png_ptr, &png_ptr->colorspace, igamma); + png_colorspace_sync(png_ptr, info_ptr); +} +#endif + +#ifdef PNG_READ_sBIT_SUPPORTED +void /* PRIVATE */ +png_handle_sBIT(png_structrp png_ptr, png_inforp info_ptr, png_uint_32 length) +{ + unsigned int truelen, i; + png_byte sample_depth; + png_byte buf[4]; + + png_debug(1, "in png_handle_sBIT"); + + if (!(png_ptr->mode & PNG_HAVE_IHDR)) + png_chunk_error(png_ptr, "missing IHDR"); + + else if (png_ptr->mode & (PNG_HAVE_IDAT|PNG_HAVE_PLTE)) + { + png_crc_finish(png_ptr, length); + png_chunk_benign_error(png_ptr, "out of place"); + return; + } + + if (info_ptr != NULL && (info_ptr->valid & PNG_INFO_sBIT)) + { + png_crc_finish(png_ptr, length); + png_chunk_benign_error(png_ptr, "duplicate"); + return; + } + + if (png_ptr->color_type == PNG_COLOR_TYPE_PALETTE) + { + truelen = 3; + sample_depth = 8; + } + + else + { + truelen = png_ptr->channels; + sample_depth = png_ptr->bit_depth; + } + + if (length != truelen || length > 4) + { + png_chunk_benign_error(png_ptr, "invalid"); + png_crc_finish(png_ptr, length); + return; + } + + buf[0] = buf[1] = buf[2] = buf[3] = sample_depth; + png_crc_read(png_ptr, buf, truelen); + + if (png_crc_finish(png_ptr, 0)) + return; + + for (i=0; i sample_depth) + { + png_chunk_benign_error(png_ptr, "invalid"); + return; + } + + if (png_ptr->color_type & PNG_COLOR_MASK_COLOR) + { + png_ptr->sig_bit.red = buf[0]; + png_ptr->sig_bit.green = buf[1]; + png_ptr->sig_bit.blue = buf[2]; + png_ptr->sig_bit.alpha = buf[3]; + } + + else + { + png_ptr->sig_bit.gray = buf[0]; + png_ptr->sig_bit.red = buf[0]; + png_ptr->sig_bit.green = buf[0]; + png_ptr->sig_bit.blue = buf[0]; + png_ptr->sig_bit.alpha = buf[1]; + } + + png_set_sBIT(png_ptr, info_ptr, &(png_ptr->sig_bit)); +} +#endif + +#ifdef PNG_READ_cHRM_SUPPORTED +void /* PRIVATE */ +png_handle_cHRM(png_structrp png_ptr, png_inforp info_ptr, png_uint_32 length) +{ + png_byte buf[32]; + png_xy xy; + + png_debug(1, "in png_handle_cHRM"); + + if (!(png_ptr->mode & PNG_HAVE_IHDR)) + png_chunk_error(png_ptr, "missing IHDR"); + + else if (png_ptr->mode & (PNG_HAVE_IDAT|PNG_HAVE_PLTE)) + { + png_crc_finish(png_ptr, length); + png_chunk_benign_error(png_ptr, "out of place"); + return; + } + + if (length != 32) + { + png_crc_finish(png_ptr, length); + png_chunk_benign_error(png_ptr, "invalid"); + return; + } + + png_crc_read(png_ptr, buf, 32); + + if (png_crc_finish(png_ptr, 0)) + return; + + xy.whitex = png_get_fixed_point(NULL, buf); + xy.whitey = png_get_fixed_point(NULL, buf + 4); + xy.redx = png_get_fixed_point(NULL, buf + 8); + xy.redy = png_get_fixed_point(NULL, buf + 12); + xy.greenx = png_get_fixed_point(NULL, buf + 16); + xy.greeny = png_get_fixed_point(NULL, buf + 20); + xy.bluex = png_get_fixed_point(NULL, buf + 24); + xy.bluey = png_get_fixed_point(NULL, buf + 28); + + if (xy.whitex == PNG_FIXED_ERROR || + xy.whitey == PNG_FIXED_ERROR || + xy.redx == PNG_FIXED_ERROR || + xy.redy == PNG_FIXED_ERROR || + xy.greenx == PNG_FIXED_ERROR || + xy.greeny == PNG_FIXED_ERROR || + xy.bluex == PNG_FIXED_ERROR || + xy.bluey == PNG_FIXED_ERROR) + { + png_chunk_benign_error(png_ptr, "invalid values"); + return; + } + + /* If a colorspace error has already been output skip this chunk */ + if (png_ptr->colorspace.flags & PNG_COLORSPACE_INVALID) + return; + + if (png_ptr->colorspace.flags & PNG_COLORSPACE_FROM_cHRM) + { + png_ptr->colorspace.flags |= PNG_COLORSPACE_INVALID; + png_colorspace_sync(png_ptr, info_ptr); + png_chunk_benign_error(png_ptr, "duplicate"); + return; + } + + png_ptr->colorspace.flags |= PNG_COLORSPACE_FROM_cHRM; + (void)png_colorspace_set_chromaticities(png_ptr, &png_ptr->colorspace, &xy, + 1/*prefer cHRM values*/); + png_colorspace_sync(png_ptr, info_ptr); +} +#endif + +#ifdef PNG_READ_sRGB_SUPPORTED +void /* PRIVATE */ +png_handle_sRGB(png_structrp png_ptr, png_inforp info_ptr, png_uint_32 length) +{ + png_byte intent; + + png_debug(1, "in png_handle_sRGB"); + + if (!(png_ptr->mode & PNG_HAVE_IHDR)) + png_chunk_error(png_ptr, "missing IHDR"); + + else if (png_ptr->mode & (PNG_HAVE_IDAT|PNG_HAVE_PLTE)) + { + png_crc_finish(png_ptr, length); + png_chunk_benign_error(png_ptr, "out of place"); + return; + } + + if (length != 1) + { + png_crc_finish(png_ptr, length); + png_chunk_benign_error(png_ptr, "invalid"); + return; + } + + png_crc_read(png_ptr, &intent, 1); + + if (png_crc_finish(png_ptr, 0)) + return; + + /* If a colorspace error has already been output skip this chunk */ + if (png_ptr->colorspace.flags & PNG_COLORSPACE_INVALID) + return; + + /* Only one sRGB or iCCP chunk is allowed, use the HAVE_INTENT flag to detect + * this. + */ + if (png_ptr->colorspace.flags & PNG_COLORSPACE_HAVE_INTENT) + { + png_ptr->colorspace.flags |= PNG_COLORSPACE_INVALID; + png_colorspace_sync(png_ptr, info_ptr); + png_chunk_benign_error(png_ptr, "too many profiles"); + return; + } + + (void)png_colorspace_set_sRGB(png_ptr, &png_ptr->colorspace, intent); + png_colorspace_sync(png_ptr, info_ptr); +} +#endif /* PNG_READ_sRGB_SUPPORTED */ + +#ifdef PNG_READ_iCCP_SUPPORTED +void /* PRIVATE */ +png_handle_iCCP(png_structrp png_ptr, png_inforp info_ptr, png_uint_32 length) +/* Note: this does not properly handle profiles that are > 64K under DOS */ +{ + png_const_charp errmsg = NULL; /* error message output, or no error */ + int finished = 0; /* crc checked */ + + png_debug(1, "in png_handle_iCCP"); + + if (!(png_ptr->mode & PNG_HAVE_IHDR)) + png_chunk_error(png_ptr, "missing IHDR"); + + else if (png_ptr->mode & (PNG_HAVE_IDAT|PNG_HAVE_PLTE)) + { + png_crc_finish(png_ptr, length); + png_chunk_benign_error(png_ptr, "out of place"); + return; + } + + /* Consistent with all the above colorspace handling an obviously *invalid* + * chunk is just ignored, so does not invalidate the color space. An + * alternative is to set the 'invalid' flags at the start of this routine + * and only clear them in they were not set before and all the tests pass. + * The minimum 'deflate' stream is assumed to be just the 2 byte header and 4 + * byte checksum. The keyword must be one character and there is a + * terminator (0) byte and the compression method. + */ + if (length < 9) + { + png_crc_finish(png_ptr, length); + png_chunk_benign_error(png_ptr, "too short"); + return; + } + + /* If a colorspace error has already been output skip this chunk */ + if (png_ptr->colorspace.flags & PNG_COLORSPACE_INVALID) + { + png_crc_finish(png_ptr, length); + return; + } + + /* Only one sRGB or iCCP chunk is allowed, use the HAVE_INTENT flag to detect + * this. + */ + if ((png_ptr->colorspace.flags & PNG_COLORSPACE_HAVE_INTENT) == 0) + { + uInt read_length, keyword_length; + char keyword[81]; + + /* Find the keyword; the keyword plus separator and compression method + * bytes can be at most 81 characters long. + */ + read_length = 81; /* maximum */ + if (read_length > length) + read_length = (uInt)length; + + png_crc_read(png_ptr, (png_bytep)keyword, read_length); + length -= read_length; + + keyword_length = 0; + while (keyword_length < 80 && keyword_length < read_length && + keyword[keyword_length] != 0) + ++keyword_length; + + /* TODO: make the keyword checking common */ + if (keyword_length >= 1 && keyword_length <= 79) + { + /* We only understand '0' compression - deflate - so if we get a + * different value we can't safely decode the chunk. + */ + if (keyword_length+1 < read_length && + keyword[keyword_length+1] == PNG_COMPRESSION_TYPE_BASE) + { + read_length -= keyword_length+2; + + if (png_inflate_claim(png_ptr, png_iCCP) == Z_OK) + { + Byte profile_header[132]; + Byte local_buffer[PNG_INFLATE_BUF_SIZE]; + png_alloc_size_t size = (sizeof profile_header); + + png_ptr->zstream.next_in = (Bytef*)keyword + (keyword_length+2); + png_ptr->zstream.avail_in = read_length; + (void)png_inflate_read(png_ptr, local_buffer, + (sizeof local_buffer), &length, profile_header, &size, + 0/*finish: don't, because the output is too small*/); + + if (size == 0) + { + /* We have the ICC profile header; do the basic header checks. + */ + const png_uint_32 profile_length = + png_get_uint_32(profile_header); + + if (png_icc_check_length(png_ptr, &png_ptr->colorspace, + keyword, profile_length)) + { + /* The length is apparently ok, so we can check the 132 + * byte header. + */ + if (png_icc_check_header(png_ptr, &png_ptr->colorspace, + keyword, profile_length, profile_header, + png_ptr->color_type)) + { + /* Now read the tag table; a variable size buffer is + * needed at this point, allocate one for the whole + * profile. The header check has already validated + * that none of these stuff will overflow. + */ + const png_uint_32 tag_count = png_get_uint_32( + profile_header+128); + png_bytep profile = png_read_buffer(png_ptr, + profile_length, 2/*silent*/); + + if (profile != NULL) + { + memcpy(profile, profile_header, + (sizeof profile_header)); + + size = 12 * tag_count; + + (void)png_inflate_read(png_ptr, local_buffer, + (sizeof local_buffer), &length, + profile + (sizeof profile_header), &size, 0); + + /* Still expect a buffer error because we expect + * there to be some tag data! + */ + if (size == 0) + { + if (png_icc_check_tag_table(png_ptr, + &png_ptr->colorspace, keyword, profile_length, + profile)) + { + /* The profile has been validated for basic + * security issues, so read the whole thing in. + */ + size = profile_length - (sizeof profile_header) + - 12 * tag_count; + + (void)png_inflate_read(png_ptr, local_buffer, + (sizeof local_buffer), &length, + profile + (sizeof profile_header) + + 12 * tag_count, &size, 1/*finish*/); + + if (length > 0 && !(png_ptr->flags & + PNG_FLAG_BENIGN_ERRORS_WARN)) + errmsg = "extra compressed data"; + + /* But otherwise allow extra data: */ + else if (size == 0) + { + if (length > 0) + { + /* This can be handled completely, so + * keep going. + */ + png_chunk_warning(png_ptr, + "extra compressed data"); + } + + png_crc_finish(png_ptr, length); + finished = 1; + +# ifdef PNG_sRGB_SUPPORTED + /* Check for a match against sRGB */ + png_icc_set_sRGB(png_ptr, + &png_ptr->colorspace, profile, + png_ptr->zstream.adler); +# endif + + /* Steal the profile for info_ptr. */ + if (info_ptr != NULL) + { + png_free_data(png_ptr, info_ptr, + PNG_FREE_ICCP, 0); + + info_ptr->iccp_name = png_voidcast(char*, + png_malloc_base(png_ptr, + keyword_length+1)); + if (info_ptr->iccp_name != NULL) + { + memcpy(info_ptr->iccp_name, keyword, + keyword_length+1); + info_ptr->iccp_proflen = + profile_length; + info_ptr->iccp_profile = profile; + png_ptr->read_buffer = NULL; /*steal*/ + info_ptr->free_me |= PNG_FREE_ICCP; + info_ptr->valid |= PNG_INFO_iCCP; + } + + else + { + png_ptr->colorspace.flags |= + PNG_COLORSPACE_INVALID; + errmsg = "out of memory"; + } + } + + /* else the profile remains in the read + * buffer which gets reused for subsequent + * chunks. + */ + + if (info_ptr != NULL) + png_colorspace_sync(png_ptr, info_ptr); + + if (errmsg == NULL) + { + png_ptr->zowner = 0; + return; + } + } + + else if (size > 0) + errmsg = "truncated"; + + else + errmsg = png_ptr->zstream.msg; + } + + /* else png_icc_check_tag_table output an error */ + } + + else /* profile truncated */ + errmsg = png_ptr->zstream.msg; + } + + else + errmsg = "out of memory"; + } + + /* else png_icc_check_header output an error */ + } + + /* else png_icc_check_length output an error */ + } + + else /* profile truncated */ + errmsg = png_ptr->zstream.msg; + + /* Release the stream */ + png_ptr->zowner = 0; + } + + else /* png_inflate_claim failed */ + errmsg = png_ptr->zstream.msg; + } + + else + errmsg = "bad compression method"; /* or missing */ + } + + else + errmsg = "bad keyword"; + } + + else + errmsg = "too many profiles"; + + /* Failure: the reason is in 'errmsg' */ + if (finished == 0) + png_crc_finish(png_ptr, length); + + png_ptr->colorspace.flags |= PNG_COLORSPACE_INVALID; + png_colorspace_sync(png_ptr, info_ptr); + if (errmsg != NULL) /* else already output */ + png_chunk_benign_error(png_ptr, errmsg); +} +#endif /* PNG_READ_iCCP_SUPPORTED */ + +#ifdef PNG_READ_sPLT_SUPPORTED +void /* PRIVATE */ +png_handle_sPLT(png_structrp png_ptr, png_inforp info_ptr, png_uint_32 length) +/* Note: this does not properly handle chunks that are > 64K under DOS */ +{ + png_bytep entry_start, buffer; + png_sPLT_t new_palette; + png_sPLT_entryp pp; + png_uint_32 data_length; + int entry_size, i; + png_uint_32 skip = 0; + png_uint_32 dl; + png_size_t max_dl; + + png_debug(1, "in png_handle_sPLT"); + +#ifdef PNG_USER_LIMITS_SUPPORTED + if (png_ptr->user_chunk_cache_max != 0) + { + if (png_ptr->user_chunk_cache_max == 1) + { + png_crc_finish(png_ptr, length); + return; + } + + if (--png_ptr->user_chunk_cache_max == 1) + { + png_warning(png_ptr, "No space in chunk cache for sPLT"); + png_crc_finish(png_ptr, length); + return; + } + } +#endif + + if (!(png_ptr->mode & PNG_HAVE_IHDR)) + png_chunk_error(png_ptr, "missing IHDR"); + + else if (png_ptr->mode & PNG_HAVE_IDAT) + { + png_crc_finish(png_ptr, length); + png_chunk_benign_error(png_ptr, "out of place"); + return; + } + +#ifdef PNG_MAX_MALLOC_64K + if (length > 65535U) + { + png_crc_finish(png_ptr, length); + png_chunk_benign_error(png_ptr, "too large to fit in memory"); + return; + } +#endif + + buffer = png_read_buffer(png_ptr, length+1, 2/*silent*/); + if (buffer == NULL) + { + png_crc_finish(png_ptr, length); + png_chunk_benign_error(png_ptr, "out of memory"); + return; + } + + + /* WARNING: this may break if size_t is less than 32 bits; it is assumed + * that the PNG_MAX_MALLOC_64K test is enabled in this case, but this is a + * potential breakage point if the types in pngconf.h aren't exactly right. + */ + png_crc_read(png_ptr, buffer, length); + + if (png_crc_finish(png_ptr, skip)) + return; + + buffer[length] = 0; + + for (entry_start = buffer; *entry_start; entry_start++) + /* Empty loop to find end of name */ ; + + ++entry_start; + + /* A sample depth should follow the separator, and we should be on it */ + if (entry_start > buffer + length - 2) + { + png_warning(png_ptr, "malformed sPLT chunk"); + return; + } + + new_palette.depth = *entry_start++; + entry_size = (new_palette.depth == 8 ? 6 : 10); + /* This must fit in a png_uint_32 because it is derived from the original + * chunk data length. + */ + data_length = length - (png_uint_32)(entry_start - buffer); + + /* Integrity-check the data length */ + if (data_length % entry_size) + { + png_warning(png_ptr, "sPLT chunk has bad length"); + return; + } + + dl = (png_int_32)(data_length / entry_size); + max_dl = PNG_SIZE_MAX / (sizeof (png_sPLT_entry)); + + if (dl > max_dl) + { + png_warning(png_ptr, "sPLT chunk too long"); + return; + } + + new_palette.nentries = (png_int_32)(data_length / entry_size); + + new_palette.entries = (png_sPLT_entryp)png_malloc_warn( + png_ptr, new_palette.nentries * (sizeof (png_sPLT_entry))); + + if (new_palette.entries == NULL) + { + png_warning(png_ptr, "sPLT chunk requires too much memory"); + return; + } + +#ifdef PNG_POINTER_INDEXING_SUPPORTED + for (i = 0; i < new_palette.nentries; i++) + { + pp = new_palette.entries + i; + + if (new_palette.depth == 8) + { + pp->red = *entry_start++; + pp->green = *entry_start++; + pp->blue = *entry_start++; + pp->alpha = *entry_start++; + } + + else + { + pp->red = png_get_uint_16(entry_start); entry_start += 2; + pp->green = png_get_uint_16(entry_start); entry_start += 2; + pp->blue = png_get_uint_16(entry_start); entry_start += 2; + pp->alpha = png_get_uint_16(entry_start); entry_start += 2; + } + + pp->frequency = png_get_uint_16(entry_start); entry_start += 2; + } +#else + pp = new_palette.entries; + + for (i = 0; i < new_palette.nentries; i++) + { + + if (new_palette.depth == 8) + { + pp[i].red = *entry_start++; + pp[i].green = *entry_start++; + pp[i].blue = *entry_start++; + pp[i].alpha = *entry_start++; + } + + else + { + pp[i].red = png_get_uint_16(entry_start); entry_start += 2; + pp[i].green = png_get_uint_16(entry_start); entry_start += 2; + pp[i].blue = png_get_uint_16(entry_start); entry_start += 2; + pp[i].alpha = png_get_uint_16(entry_start); entry_start += 2; + } + + pp[i].frequency = png_get_uint_16(entry_start); entry_start += 2; + } +#endif + + /* Discard all chunk data except the name and stash that */ + new_palette.name = (png_charp)buffer; + + png_set_sPLT(png_ptr, info_ptr, &new_palette, 1); + + png_free(png_ptr, new_palette.entries); +} +#endif /* PNG_READ_sPLT_SUPPORTED */ + +#ifdef PNG_READ_tRNS_SUPPORTED +void /* PRIVATE */ +png_handle_tRNS(png_structrp png_ptr, png_inforp info_ptr, png_uint_32 length) +{ + png_byte readbuf[PNG_MAX_PALETTE_LENGTH]; + + png_debug(1, "in png_handle_tRNS"); + + if (!(png_ptr->mode & PNG_HAVE_IHDR)) + png_chunk_error(png_ptr, "missing IHDR"); + + else if (png_ptr->mode & PNG_HAVE_IDAT) + { + png_crc_finish(png_ptr, length); + png_chunk_benign_error(png_ptr, "out of place"); + return; + } + + else if (info_ptr != NULL && (info_ptr->valid & PNG_INFO_tRNS)) + { + png_crc_finish(png_ptr, length); + png_chunk_benign_error(png_ptr, "duplicate"); + return; + } + + if (png_ptr->color_type == PNG_COLOR_TYPE_GRAY) + { + png_byte buf[2]; + + if (length != 2) + { + png_crc_finish(png_ptr, length); + png_chunk_benign_error(png_ptr, "invalid"); + return; + } + + png_crc_read(png_ptr, buf, 2); + png_ptr->num_trans = 1; + png_ptr->trans_color.gray = png_get_uint_16(buf); + } + + else if (png_ptr->color_type == PNG_COLOR_TYPE_RGB) + { + png_byte buf[6]; + + if (length != 6) + { + png_crc_finish(png_ptr, length); + png_chunk_benign_error(png_ptr, "invalid"); + return; + } + + png_crc_read(png_ptr, buf, length); + png_ptr->num_trans = 1; + png_ptr->trans_color.red = png_get_uint_16(buf); + png_ptr->trans_color.green = png_get_uint_16(buf + 2); + png_ptr->trans_color.blue = png_get_uint_16(buf + 4); + } + + else if (png_ptr->color_type == PNG_COLOR_TYPE_PALETTE) + { + if (!(png_ptr->mode & PNG_HAVE_PLTE)) + { + /* TODO: is this actually an error in the ISO spec? */ + png_crc_finish(png_ptr, length); + png_chunk_benign_error(png_ptr, "out of place"); + return; + } + + if (length > png_ptr->num_palette || length > PNG_MAX_PALETTE_LENGTH || + length == 0) + { + png_crc_finish(png_ptr, length); + png_chunk_benign_error(png_ptr, "invalid"); + return; + } + + png_crc_read(png_ptr, readbuf, length); + png_ptr->num_trans = (png_uint_16)length; + } + + else + { + png_crc_finish(png_ptr, length); + png_chunk_benign_error(png_ptr, "invalid with alpha channel"); + return; + } + + if (png_crc_finish(png_ptr, 0)) + { + png_ptr->num_trans = 0; + return; + } + + /* TODO: this is a horrible side effect in the palette case because the + * png_struct ends up with a pointer to the tRNS buffer owned by the + * png_info. Fix this. + */ + png_set_tRNS(png_ptr, info_ptr, readbuf, png_ptr->num_trans, + &(png_ptr->trans_color)); +} +#endif + +#ifdef PNG_READ_bKGD_SUPPORTED +void /* PRIVATE */ +png_handle_bKGD(png_structrp png_ptr, png_inforp info_ptr, png_uint_32 length) +{ + unsigned int truelen; + png_byte buf[6]; + png_color_16 background; + + png_debug(1, "in png_handle_bKGD"); + + if (!(png_ptr->mode & PNG_HAVE_IHDR)) + png_chunk_error(png_ptr, "missing IHDR"); + + else if ((png_ptr->mode & PNG_HAVE_IDAT) || + (png_ptr->color_type == PNG_COLOR_TYPE_PALETTE && + !(png_ptr->mode & PNG_HAVE_PLTE))) + { + png_crc_finish(png_ptr, length); + png_chunk_benign_error(png_ptr, "out of place"); + return; + } + + else if (info_ptr != NULL && (info_ptr->valid & PNG_INFO_bKGD)) + { + png_crc_finish(png_ptr, length); + png_chunk_benign_error(png_ptr, "duplicate"); + return; + } + + if (png_ptr->color_type == PNG_COLOR_TYPE_PALETTE) + truelen = 1; + + else if (png_ptr->color_type & PNG_COLOR_MASK_COLOR) + truelen = 6; + + else + truelen = 2; + + if (length != truelen) + { + png_crc_finish(png_ptr, length); + png_chunk_benign_error(png_ptr, "invalid"); + return; + } + + png_crc_read(png_ptr, buf, truelen); + + if (png_crc_finish(png_ptr, 0)) + return; + + /* We convert the index value into RGB components so that we can allow + * arbitrary RGB values for background when we have transparency, and + * so it is easy to determine the RGB values of the background color + * from the info_ptr struct. + */ + if (png_ptr->color_type == PNG_COLOR_TYPE_PALETTE) + { + background.index = buf[0]; + + if (info_ptr && info_ptr->num_palette) + { + if (buf[0] >= info_ptr->num_palette) + { + png_chunk_benign_error(png_ptr, "invalid index"); + return; + } + + background.red = (png_uint_16)png_ptr->palette[buf[0]].red; + background.green = (png_uint_16)png_ptr->palette[buf[0]].green; + background.blue = (png_uint_16)png_ptr->palette[buf[0]].blue; + } + + else + background.red = background.green = background.blue = 0; + + background.gray = 0; + } + + else if (!(png_ptr->color_type & PNG_COLOR_MASK_COLOR)) /* GRAY */ + { + background.index = 0; + background.red = + background.green = + background.blue = + background.gray = png_get_uint_16(buf); + } + + else + { + background.index = 0; + background.red = png_get_uint_16(buf); + background.green = png_get_uint_16(buf + 2); + background.blue = png_get_uint_16(buf + 4); + background.gray = 0; + } + + png_set_bKGD(png_ptr, info_ptr, &background); +} +#endif + +#ifdef PNG_READ_hIST_SUPPORTED +void /* PRIVATE */ +png_handle_hIST(png_structrp png_ptr, png_inforp info_ptr, png_uint_32 length) +{ + unsigned int num, i; + png_uint_16 readbuf[PNG_MAX_PALETTE_LENGTH]; + + png_debug(1, "in png_handle_hIST"); + + if (!(png_ptr->mode & PNG_HAVE_IHDR)) + png_chunk_error(png_ptr, "missing IHDR"); + + else if ((png_ptr->mode & PNG_HAVE_IDAT) || !(png_ptr->mode & PNG_HAVE_PLTE)) + { + png_crc_finish(png_ptr, length); + png_chunk_benign_error(png_ptr, "out of place"); + return; + } + + else if (info_ptr != NULL && (info_ptr->valid & PNG_INFO_hIST)) + { + png_crc_finish(png_ptr, length); + png_chunk_benign_error(png_ptr, "duplicate"); + return; + } + + num = length / 2 ; + + if (num != png_ptr->num_palette || num > PNG_MAX_PALETTE_LENGTH) + { + png_crc_finish(png_ptr, length); + png_chunk_benign_error(png_ptr, "invalid"); + return; + } + + for (i = 0; i < num; i++) + { + png_byte buf[2]; + + png_crc_read(png_ptr, buf, 2); + readbuf[i] = png_get_uint_16(buf); + } + + if (png_crc_finish(png_ptr, 0)) + return; + + png_set_hIST(png_ptr, info_ptr, readbuf); +} +#endif + +#ifdef PNG_READ_pHYs_SUPPORTED +void /* PRIVATE */ +png_handle_pHYs(png_structrp png_ptr, png_inforp info_ptr, png_uint_32 length) +{ + png_byte buf[9]; + png_uint_32 res_x, res_y; + int unit_type; + + png_debug(1, "in png_handle_pHYs"); + + if (!(png_ptr->mode & PNG_HAVE_IHDR)) + png_chunk_error(png_ptr, "missing IHDR"); + + else if (png_ptr->mode & PNG_HAVE_IDAT) + { + png_crc_finish(png_ptr, length); + png_chunk_benign_error(png_ptr, "out of place"); + return; + } + + else if (info_ptr != NULL && (info_ptr->valid & PNG_INFO_pHYs)) + { + png_crc_finish(png_ptr, length); + png_chunk_benign_error(png_ptr, "duplicate"); + return; + } + + if (length != 9) + { + png_crc_finish(png_ptr, length); + png_chunk_benign_error(png_ptr, "invalid"); + return; + } + + png_crc_read(png_ptr, buf, 9); + + if (png_crc_finish(png_ptr, 0)) + return; + + res_x = png_get_uint_32(buf); + res_y = png_get_uint_32(buf + 4); + unit_type = buf[8]; + png_set_pHYs(png_ptr, info_ptr, res_x, res_y, unit_type); +} +#endif + +#ifdef PNG_READ_oFFs_SUPPORTED +void /* PRIVATE */ +png_handle_oFFs(png_structrp png_ptr, png_inforp info_ptr, png_uint_32 length) +{ + png_byte buf[9]; + png_int_32 offset_x, offset_y; + int unit_type; + + png_debug(1, "in png_handle_oFFs"); + + if (!(png_ptr->mode & PNG_HAVE_IHDR)) + png_chunk_error(png_ptr, "missing IHDR"); + + else if (png_ptr->mode & PNG_HAVE_IDAT) + { + png_crc_finish(png_ptr, length); + png_chunk_benign_error(png_ptr, "out of place"); + return; + } + + else if (info_ptr != NULL && (info_ptr->valid & PNG_INFO_oFFs)) + { + png_crc_finish(png_ptr, length); + png_chunk_benign_error(png_ptr, "duplicate"); + return; + } + + if (length != 9) + { + png_crc_finish(png_ptr, length); + png_chunk_benign_error(png_ptr, "invalid"); + return; + } + + png_crc_read(png_ptr, buf, 9); + + if (png_crc_finish(png_ptr, 0)) + return; + + offset_x = png_get_int_32(buf); + offset_y = png_get_int_32(buf + 4); + unit_type = buf[8]; + png_set_oFFs(png_ptr, info_ptr, offset_x, offset_y, unit_type); +} +#endif + +#ifdef PNG_READ_pCAL_SUPPORTED +/* Read the pCAL chunk (described in the PNG Extensions document) */ +void /* PRIVATE */ +png_handle_pCAL(png_structrp png_ptr, png_inforp info_ptr, png_uint_32 length) +{ + png_int_32 X0, X1; + png_byte type, nparams; + png_bytep buffer, buf, units, endptr; + png_charpp params; + int i; + + png_debug(1, "in png_handle_pCAL"); + + if (!(png_ptr->mode & PNG_HAVE_IHDR)) + png_chunk_error(png_ptr, "missing IHDR"); + + else if (png_ptr->mode & PNG_HAVE_IDAT) + { + png_crc_finish(png_ptr, length); + png_chunk_benign_error(png_ptr, "out of place"); + return; + } + + else if (info_ptr != NULL && (info_ptr->valid & PNG_INFO_pCAL)) + { + png_crc_finish(png_ptr, length); + png_chunk_benign_error(png_ptr, "duplicate"); + return; + } + + png_debug1(2, "Allocating and reading pCAL chunk data (%u bytes)", + length + 1); + + buffer = png_read_buffer(png_ptr, length+1, 2/*silent*/); + + if (buffer == NULL) + { + png_crc_finish(png_ptr, length); + png_chunk_benign_error(png_ptr, "out of memory"); + return; + } + + png_crc_read(png_ptr, buffer, length); + + if (png_crc_finish(png_ptr, 0)) + return; + + buffer[length] = 0; /* Null terminate the last string */ + + png_debug(3, "Finding end of pCAL purpose string"); + for (buf = buffer; *buf; buf++) + /* Empty loop */ ; + + endptr = buffer + length; + + /* We need to have at least 12 bytes after the purpose string + * in order to get the parameter information. + */ + if (endptr <= buf + 12) + { + png_chunk_benign_error(png_ptr, "invalid"); + return; + } + + png_debug(3, "Reading pCAL X0, X1, type, nparams, and units"); + X0 = png_get_int_32((png_bytep)buf+1); + X1 = png_get_int_32((png_bytep)buf+5); + type = buf[9]; + nparams = buf[10]; + units = buf + 11; + + png_debug(3, "Checking pCAL equation type and number of parameters"); + /* Check that we have the right number of parameters for known + * equation types. + */ + if ((type == PNG_EQUATION_LINEAR && nparams != 2) || + (type == PNG_EQUATION_BASE_E && nparams != 3) || + (type == PNG_EQUATION_ARBITRARY && nparams != 3) || + (type == PNG_EQUATION_HYPERBOLIC && nparams != 4)) + { + png_chunk_benign_error(png_ptr, "invalid parameter count"); + return; + } + + else if (type >= PNG_EQUATION_LAST) + { + png_chunk_benign_error(png_ptr, "unrecognized equation type"); + } + + for (buf = units; *buf; buf++) + /* Empty loop to move past the units string. */ ; + + png_debug(3, "Allocating pCAL parameters array"); + + params = png_voidcast(png_charpp, png_malloc_warn(png_ptr, + nparams * (sizeof (png_charp)))); + + if (params == NULL) + { + png_chunk_benign_error(png_ptr, "out of memory"); + return; + } + + /* Get pointers to the start of each parameter string. */ + for (i = 0; i < nparams; i++) + { + buf++; /* Skip the null string terminator from previous parameter. */ + + png_debug1(3, "Reading pCAL parameter %d", i); + + for (params[i] = (png_charp)buf; buf <= endptr && *buf != 0; buf++) + /* Empty loop to move past each parameter string */ ; + + /* Make sure we haven't run out of data yet */ + if (buf > endptr) + { + png_free(png_ptr, params); + png_chunk_benign_error(png_ptr, "invalid data"); + return; + } + } + + png_set_pCAL(png_ptr, info_ptr, (png_charp)buffer, X0, X1, type, nparams, + (png_charp)units, params); + + png_free(png_ptr, params); +} +#endif + +#ifdef PNG_READ_sCAL_SUPPORTED +/* Read the sCAL chunk */ +void /* PRIVATE */ +png_handle_sCAL(png_structrp png_ptr, png_inforp info_ptr, png_uint_32 length) +{ + png_bytep buffer; + png_size_t i; + int state; + + png_debug(1, "in png_handle_sCAL"); + + if (!(png_ptr->mode & PNG_HAVE_IHDR)) + png_chunk_error(png_ptr, "missing IHDR"); + + else if (png_ptr->mode & PNG_HAVE_IDAT) + { + png_crc_finish(png_ptr, length); + png_chunk_benign_error(png_ptr, "out of place"); + return; + } + + else if (info_ptr != NULL && (info_ptr->valid & PNG_INFO_sCAL)) + { + png_crc_finish(png_ptr, length); + png_chunk_benign_error(png_ptr, "duplicate"); + return; + } + + /* Need unit type, width, \0, height: minimum 4 bytes */ + else if (length < 4) + { + png_crc_finish(png_ptr, length); + png_chunk_benign_error(png_ptr, "invalid"); + return; + } + + png_debug1(2, "Allocating and reading sCAL chunk data (%u bytes)", + length + 1); + + buffer = png_read_buffer(png_ptr, length+1, 2/*silent*/); + + if (buffer == NULL) + { + png_chunk_benign_error(png_ptr, "out of memory"); + png_crc_finish(png_ptr, length); + return; + } + + png_crc_read(png_ptr, buffer, length); + buffer[length] = 0; /* Null terminate the last string */ + + if (png_crc_finish(png_ptr, 0)) + return; + + /* Validate the unit. */ + if (buffer[0] != 1 && buffer[0] != 2) + { + png_chunk_benign_error(png_ptr, "invalid unit"); + return; + } + + /* Validate the ASCII numbers, need two ASCII numbers separated by + * a '\0' and they need to fit exactly in the chunk data. + */ + i = 1; + state = 0; + + if (!png_check_fp_number((png_const_charp)buffer, length, &state, &i) || + i >= length || buffer[i++] != 0) + png_chunk_benign_error(png_ptr, "bad width format"); + + else if (!PNG_FP_IS_POSITIVE(state)) + png_chunk_benign_error(png_ptr, "non-positive width"); + + else + { + png_size_t heighti = i; + + state = 0; + if (!png_check_fp_number((png_const_charp)buffer, length, &state, &i) || + i != length) + png_chunk_benign_error(png_ptr, "bad height format"); + + else if (!PNG_FP_IS_POSITIVE(state)) + png_chunk_benign_error(png_ptr, "non-positive height"); + + else + /* This is the (only) success case. */ + png_set_sCAL_s(png_ptr, info_ptr, buffer[0], + (png_charp)buffer+1, (png_charp)buffer+heighti); + } +} +#endif + +#ifdef PNG_READ_tIME_SUPPORTED +void /* PRIVATE */ +png_handle_tIME(png_structrp png_ptr, png_inforp info_ptr, png_uint_32 length) +{ + png_byte buf[7]; + png_time mod_time; + + png_debug(1, "in png_handle_tIME"); + + if (!(png_ptr->mode & PNG_HAVE_IHDR)) + png_chunk_error(png_ptr, "missing IHDR"); + + else if (info_ptr != NULL && (info_ptr->valid & PNG_INFO_tIME)) + { + png_crc_finish(png_ptr, length); + png_chunk_benign_error(png_ptr, "duplicate"); + return; + } + + if (png_ptr->mode & PNG_HAVE_IDAT) + png_ptr->mode |= PNG_AFTER_IDAT; + + if (length != 7) + { + png_crc_finish(png_ptr, length); + png_chunk_benign_error(png_ptr, "invalid"); + return; + } + + png_crc_read(png_ptr, buf, 7); + + if (png_crc_finish(png_ptr, 0)) + return; + + mod_time.second = buf[6]; + mod_time.minute = buf[5]; + mod_time.hour = buf[4]; + mod_time.day = buf[3]; + mod_time.month = buf[2]; + mod_time.year = png_get_uint_16(buf); + + png_set_tIME(png_ptr, info_ptr, &mod_time); +} +#endif + +#ifdef PNG_READ_tEXt_SUPPORTED +/* Note: this does not properly handle chunks that are > 64K under DOS */ +void /* PRIVATE */ +png_handle_tEXt(png_structrp png_ptr, png_inforp info_ptr, png_uint_32 length) +{ + png_text text_info; + png_bytep buffer; + png_charp key; + png_charp text; + png_uint_32 skip = 0; + + png_debug(1, "in png_handle_tEXt"); + +#ifdef PNG_USER_LIMITS_SUPPORTED + if (png_ptr->user_chunk_cache_max != 0) + { + if (png_ptr->user_chunk_cache_max == 1) + { + png_crc_finish(png_ptr, length); + return; + } + + if (--png_ptr->user_chunk_cache_max == 1) + { + png_crc_finish(png_ptr, length); + png_chunk_benign_error(png_ptr, "no space in chunk cache"); + return; + } + } +#endif + + if (!(png_ptr->mode & PNG_HAVE_IHDR)) + png_chunk_error(png_ptr, "missing IHDR"); + + if (png_ptr->mode & PNG_HAVE_IDAT) + png_ptr->mode |= PNG_AFTER_IDAT; + +#ifdef PNG_MAX_MALLOC_64K + if (length > 65535U) + { + png_crc_finish(png_ptr, length); + png_chunk_benign_error(png_ptr, "too large to fit in memory"); + return; + } +#endif + + buffer = png_read_buffer(png_ptr, length+1, 1/*warn*/); + + if (buffer == NULL) + { + png_chunk_benign_error(png_ptr, "out of memory"); + return; + } + + png_crc_read(png_ptr, buffer, length); + + if (png_crc_finish(png_ptr, skip)) + return; + + key = (png_charp)buffer; + key[length] = 0; + + for (text = key; *text; text++) + /* Empty loop to find end of key */ ; + + if (text != key + length) + text++; + + text_info.compression = PNG_TEXT_COMPRESSION_NONE; + text_info.key = key; + text_info.lang = NULL; + text_info.lang_key = NULL; + text_info.itxt_length = 0; + text_info.text = text; + text_info.text_length = strlen(text); + + if (png_set_text_2(png_ptr, info_ptr, &text_info, 1)) + png_warning(png_ptr, "Insufficient memory to process text chunk"); +} +#endif + +#ifdef PNG_READ_zTXt_SUPPORTED +/* Note: this does not correctly handle chunks that are > 64K under DOS */ +void /* PRIVATE */ +png_handle_zTXt(png_structrp png_ptr, png_inforp info_ptr, png_uint_32 length) +{ + png_const_charp errmsg = NULL; + png_bytep buffer; + png_uint_32 keyword_length; + + png_debug(1, "in png_handle_zTXt"); + +#ifdef PNG_USER_LIMITS_SUPPORTED + if (png_ptr->user_chunk_cache_max != 0) + { + if (png_ptr->user_chunk_cache_max == 1) + { + png_crc_finish(png_ptr, length); + return; + } + + if (--png_ptr->user_chunk_cache_max == 1) + { + png_crc_finish(png_ptr, length); + png_chunk_benign_error(png_ptr, "no space in chunk cache"); + return; + } + } +#endif + + if (!(png_ptr->mode & PNG_HAVE_IHDR)) + png_chunk_error(png_ptr, "missing IHDR"); + + if (png_ptr->mode & PNG_HAVE_IDAT) + png_ptr->mode |= PNG_AFTER_IDAT; + + buffer = png_read_buffer(png_ptr, length, 2/*silent*/); + + if (buffer == NULL) + { + png_crc_finish(png_ptr, length); + png_chunk_benign_error(png_ptr, "out of memory"); + return; + } + + png_crc_read(png_ptr, buffer, length); + + if (png_crc_finish(png_ptr, 0)) + return; + + /* TODO: also check that the keyword contents match the spec! */ + for (keyword_length = 0; + keyword_length < length && buffer[keyword_length] != 0; + ++keyword_length) + /* Empty loop to find end of name */ ; + + if (keyword_length > 79 || keyword_length < 1) + errmsg = "bad keyword"; + + /* zTXt must have some LZ data after the keyword, although it may expand to + * zero bytes; we need a '\0' at the end of the keyword, the compression type + * then the LZ data: + */ + else if (keyword_length + 3 > length) + errmsg = "truncated"; + + else if (buffer[keyword_length+1] != PNG_COMPRESSION_TYPE_BASE) + errmsg = "unknown compression type"; + + else + { + png_alloc_size_t uncompressed_length = PNG_SIZE_MAX; + + /* TODO: at present png_decompress_chunk imposes a single application + * level memory limit, this should be split to different values for iCCP + * and text chunks. + */ + if (png_decompress_chunk(png_ptr, length, keyword_length+2, + &uncompressed_length, 1/*terminate*/) == Z_STREAM_END) + { + png_text text; + + /* It worked; png_ptr->read_buffer now looks like a tEXt chunk except + * for the extra compression type byte and the fact that it isn't + * necessarily '\0' terminated. + */ + buffer = png_ptr->read_buffer; + buffer[uncompressed_length+(keyword_length+2)] = 0; + + text.compression = PNG_TEXT_COMPRESSION_zTXt; + text.key = (png_charp)buffer; + text.text = (png_charp)(buffer + keyword_length+2); + text.text_length = uncompressed_length; + text.itxt_length = 0; + text.lang = NULL; + text.lang_key = NULL; + + if (png_set_text_2(png_ptr, info_ptr, &text, 1)) + errmsg = "insufficient memory"; + } + + else + errmsg = png_ptr->zstream.msg; + } + + if (errmsg != NULL) + png_chunk_benign_error(png_ptr, errmsg); +} +#endif + +#ifdef PNG_READ_iTXt_SUPPORTED +/* Note: this does not correctly handle chunks that are > 64K under DOS */ +void /* PRIVATE */ +png_handle_iTXt(png_structrp png_ptr, png_inforp info_ptr, png_uint_32 length) +{ + png_const_charp errmsg = NULL; + png_bytep buffer; + png_uint_32 prefix_length; + + png_debug(1, "in png_handle_iTXt"); + +#ifdef PNG_USER_LIMITS_SUPPORTED + if (png_ptr->user_chunk_cache_max != 0) + { + if (png_ptr->user_chunk_cache_max == 1) + { + png_crc_finish(png_ptr, length); + return; + } + + if (--png_ptr->user_chunk_cache_max == 1) + { + png_crc_finish(png_ptr, length); + png_chunk_benign_error(png_ptr, "no space in chunk cache"); + return; + } + } +#endif + + if (!(png_ptr->mode & PNG_HAVE_IHDR)) + png_chunk_error(png_ptr, "missing IHDR"); + + if (png_ptr->mode & PNG_HAVE_IDAT) + png_ptr->mode |= PNG_AFTER_IDAT; + + buffer = png_read_buffer(png_ptr, length+1, 1/*warn*/); + + if (buffer == NULL) + { + png_crc_finish(png_ptr, length); + png_chunk_benign_error(png_ptr, "out of memory"); + return; + } + + png_crc_read(png_ptr, buffer, length); + + if (png_crc_finish(png_ptr, 0)) + return; + + /* First the keyword. */ + for (prefix_length=0; + prefix_length < length && buffer[prefix_length] != 0; + ++prefix_length) + /* Empty loop */ ; + + /* Perform a basic check on the keyword length here. */ + if (prefix_length > 79 || prefix_length < 1) + errmsg = "bad keyword"; + + /* Expect keyword, compression flag, compression type, language, translated + * keyword (both may be empty but are 0 terminated) then the text, which may + * be empty. + */ + else if (prefix_length + 5 > length) + errmsg = "truncated"; + + else if (buffer[prefix_length+1] == 0 || + (buffer[prefix_length+1] == 1 && + buffer[prefix_length+2] == PNG_COMPRESSION_TYPE_BASE)) + { + int compressed = buffer[prefix_length+1] != 0; + png_uint_32 language_offset, translated_keyword_offset; + png_alloc_size_t uncompressed_length = 0; + + /* Now the language tag */ + prefix_length += 3; + language_offset = prefix_length; + + for (; prefix_length < length && buffer[prefix_length] != 0; + ++prefix_length) + /* Empty loop */ ; + + /* WARNING: the length may be invalid here, this is checked below. */ + translated_keyword_offset = ++prefix_length; + + for (; prefix_length < length && buffer[prefix_length] != 0; + ++prefix_length) + /* Empty loop */ ; + + /* prefix_length should now be at the trailing '\0' of the translated + * keyword, but it may already be over the end. None of this arithmetic + * can overflow because chunks are at most 2^31 bytes long, but on 16-bit + * systems the available allocaton may overflow. + */ + ++prefix_length; + + if (!compressed && prefix_length <= length) + uncompressed_length = length - prefix_length; + + else if (compressed && prefix_length < length) + { + uncompressed_length = PNG_SIZE_MAX; + + /* TODO: at present png_decompress_chunk imposes a single application + * level memory limit, this should be split to different values for + * iCCP and text chunks. + */ + if (png_decompress_chunk(png_ptr, length, prefix_length, + &uncompressed_length, 1/*terminate*/) == Z_STREAM_END) + buffer = png_ptr->read_buffer; + + else + errmsg = png_ptr->zstream.msg; + } + + else + errmsg = "truncated"; + + if (errmsg == NULL) + { + png_text text; + + buffer[uncompressed_length+prefix_length] = 0; + + if (compressed != 0) + text.compression = PNG_ITXT_COMPRESSION_NONE; + + else + text.compression = PNG_ITXT_COMPRESSION_zTXt; + + text.key = (png_charp)buffer; + text.lang = (png_charp)buffer + language_offset; + text.lang_key = (png_charp)buffer + translated_keyword_offset; + text.text = (png_charp)buffer + prefix_length; + text.text_length = 0; + text.itxt_length = uncompressed_length; + + if (png_set_text_2(png_ptr, info_ptr, &text, 1)) + errmsg = "insufficient memory"; + } + } + + else + errmsg = "bad compression info"; + + if (errmsg != NULL) + png_chunk_benign_error(png_ptr, errmsg); +} +#endif + +#ifdef PNG_READ_UNKNOWN_CHUNKS_SUPPORTED +/* Utility function for png_handle_unknown; set up png_ptr::unknown_chunk */ +static int +png_cache_unknown_chunk(png_structrp png_ptr, png_uint_32 length) +{ + png_alloc_size_t limit = PNG_SIZE_MAX; + + if (png_ptr->unknown_chunk.data != NULL) + { + png_free(png_ptr, png_ptr->unknown_chunk.data); + png_ptr->unknown_chunk.data = NULL; + } + +# ifdef PNG_SET_CHUNK_MALLOC_LIMIT_SUPPORTED + if (png_ptr->user_chunk_malloc_max > 0 && + png_ptr->user_chunk_malloc_max < limit) + limit = png_ptr->user_chunk_malloc_max; + +# elif PNG_USER_CHUNK_MALLOC_MAX > 0 + if (PNG_USER_CHUNK_MALLOC_MAX < limit) + limit = PNG_USER_CHUNK_MALLOC_MAX; +# endif + + if (length <= limit) + { + PNG_CSTRING_FROM_CHUNK(png_ptr->unknown_chunk.name, png_ptr->chunk_name); + /* The following is safe because of the PNG_SIZE_MAX init above */ + png_ptr->unknown_chunk.size = (png_size_t)length/*SAFE*/; + /* 'mode' is a flag array, only the bottom four bits matter here */ + png_ptr->unknown_chunk.location = (png_byte)png_ptr->mode/*SAFE*/; + + if (length == 0) + png_ptr->unknown_chunk.data = NULL; + + else + { + /* Do a 'warn' here - it is handled below. */ + png_ptr->unknown_chunk.data = png_voidcast(png_bytep, + png_malloc_warn(png_ptr, length)); + } + } + + if (png_ptr->unknown_chunk.data == NULL && length > 0) + { + /* This is benign because we clean up correctly */ + png_crc_finish(png_ptr, length); + png_chunk_benign_error(png_ptr, "unknown chunk exceeds memory limits"); + return 0; + } + + else + { + if (length > 0) + png_crc_read(png_ptr, png_ptr->unknown_chunk.data, length); + png_crc_finish(png_ptr, 0); + return 1; + } +} +#endif /* PNG_READ_UNKNOWN_CHUNKS_SUPPORTED */ + +/* Handle an unknown, or known but disabled, chunk */ +void /* PRIVATE */ +png_handle_unknown(png_structrp png_ptr, png_inforp info_ptr, + png_uint_32 length, int keep) +{ + int handled = 0; /* the chunk was handled */ + + png_debug(1, "in png_handle_unknown"); + +#ifdef PNG_READ_UNKNOWN_CHUNKS_SUPPORTED + /* NOTE: this code is based on the code in libpng-1.4.12 except for fixing + * the bug which meant that setting a non-default behavior for a specific + * chunk would be ignored (the default was always used unless a user + * callback was installed). + * + * 'keep' is the value from the png_chunk_unknown_handling, the setting for + * this specific chunk_name, if PNG_HANDLE_AS_UNKNOWN_SUPPORTED, if not it + * will always be PNG_HANDLE_CHUNK_AS_DEFAULT and it needs to be set here. + * This is just an optimization to avoid multiple calls to the lookup + * function. + */ +# ifndef PNG_HANDLE_AS_UNKNOWN_SUPPORTED +# ifdef PNG_SET_UNKNOWN_CHUNKS_SUPPORTED + keep = png_chunk_unknown_handling(png_ptr, png_ptr->chunk_name); +# endif +# endif + + /* One of the following methods will read the chunk or skip it (at least one + * of these is always defined because this is the only way to switch on + * PNG_READ_UNKNOWN_CHUNKS_SUPPORTED) + */ +# ifdef PNG_READ_USER_CHUNKS_SUPPORTED + /* The user callback takes precedence over the chunk keep value, but the + * keep value is still required to validate a save of a critical chunk. + */ + if (png_ptr->read_user_chunk_fn != NULL) + { + if (png_cache_unknown_chunk(png_ptr, length)) + { + /* Callback to user unknown chunk handler */ + int ret = (*(png_ptr->read_user_chunk_fn))(png_ptr, + &png_ptr->unknown_chunk); + + /* ret is: + * negative: An error occured, png_chunk_error will be called. + * zero: The chunk was not handled, the chunk will be discarded + * unless png_set_keep_unknown_chunks has been used to set + * a 'keep' behavior for this particular chunk, in which + * case that will be used. A critical chunk will cause an + * error at this point unless it is to be saved. + * positive: The chunk was handled, libpng will ignore/discard it. + */ + if (ret < 0) + png_chunk_error(png_ptr, "error in user chunk"); + + else if (ret == 0) + { + /* If the keep value is 'default' or 'never' override it, but + * still error out on critical chunks unless the keep value is + * 'always' While this is weird it is the behavior in 1.4.12. + * A possible improvement would be to obey the value set for the + * chunk, but this would be an API change that would probably + * damage some applications. + * + * The png_app_warning below catches the case that matters, where + * the application has not set specific save or ignore for this + * chunk or global save or ignore. + */ + if (keep < PNG_HANDLE_CHUNK_IF_SAFE) + { +# ifdef PNG_SET_UNKNOWN_CHUNKS_SUPPORTED + if (png_ptr->unknown_default < PNG_HANDLE_CHUNK_IF_SAFE) + { + png_chunk_warning(png_ptr, "Saving unknown chunk:"); + png_app_warning(png_ptr, + "forcing save of an unhandled chunk;" + " please call png_set_keep_unknown_chunks"); + /* with keep = PNG_HANDLE_CHUNK_IF_SAFE */ + } +# endif + keep = PNG_HANDLE_CHUNK_IF_SAFE; + } + } + + else /* chunk was handled */ + { + handled = 1; + /* Critical chunks can be safely discarded at this point. */ + keep = PNG_HANDLE_CHUNK_NEVER; + } + } + + else + keep = PNG_HANDLE_CHUNK_NEVER; /* insufficient memory */ + } + + else + /* Use the SAVE_UNKNOWN_CHUNKS code or skip the chunk */ +# endif /* PNG_READ_USER_CHUNKS_SUPPORTED */ + +# ifdef PNG_SAVE_UNKNOWN_CHUNKS_SUPPORTED + { + /* keep is currently just the per-chunk setting, if there was no + * setting change it to the global default now (not that this may + * still be AS_DEFAULT) then obtain the cache of the chunk if required, + * if not simply skip the chunk. + */ + if (keep == PNG_HANDLE_CHUNK_AS_DEFAULT) + keep = png_ptr->unknown_default; + + if (keep == PNG_HANDLE_CHUNK_ALWAYS || + (keep == PNG_HANDLE_CHUNK_IF_SAFE && + PNG_CHUNK_ANCILLARY(png_ptr->chunk_name))) + { + if (!png_cache_unknown_chunk(png_ptr, length)) + keep = PNG_HANDLE_CHUNK_NEVER; + } + + else + png_crc_finish(png_ptr, length); + } +# else +# ifndef PNG_READ_USER_CHUNKS_SUPPORTED +# error no method to support READ_UNKNOWN_CHUNKS +# endif + + { + /* If here there is no read callback pointer set and no support is + * compiled in to just save the unknown chunks, so simply skip this + * chunk. If 'keep' is something other than AS_DEFAULT or NEVER then + * the app has erroneously asked for unknown chunk saving when there + * is no support. + */ + if (keep > PNG_HANDLE_CHUNK_NEVER) + png_app_error(png_ptr, "no unknown chunk support available"); + + png_crc_finish(png_ptr, length); + } +# endif + +# ifdef PNG_STORE_UNKNOWN_CHUNKS_SUPPORTED + /* Now store the chunk in the chunk list if appropriate, and if the limits + * permit it. + */ + if (keep == PNG_HANDLE_CHUNK_ALWAYS || + (keep == PNG_HANDLE_CHUNK_IF_SAFE && + PNG_CHUNK_ANCILLARY(png_ptr->chunk_name))) + { +# ifdef PNG_USER_LIMITS_SUPPORTED + switch (png_ptr->user_chunk_cache_max) + { + case 2: + png_ptr->user_chunk_cache_max = 1; + png_chunk_benign_error(png_ptr, "no space in chunk cache"); + /* FALL THROUGH */ + case 1: + /* NOTE: prior to 1.6.0 this case resulted in an unknown critical + * chunk being skipped, now there will be a hard error below. + */ + break; + + default: /* not at limit */ + --(png_ptr->user_chunk_cache_max); + /* FALL THROUGH */ + case 0: /* no limit */ +# endif /* PNG_USER_LIMITS_SUPPORTED */ + /* Here when the limit isn't reached or when limits are compiled + * out; store the chunk. + */ + png_set_unknown_chunks(png_ptr, info_ptr, + &png_ptr->unknown_chunk, 1); + handled = 1; +# ifdef PNG_USER_LIMITS_SUPPORTED + break; + } +# endif + } +# else /* no store support: the chunk must be handled by the user callback */ + PNG_UNUSED(info_ptr) +# endif + + /* Regardless of the error handling below the cached data (if any) can be + * freed now. Notice that the data is not freed if there is a png_error, but + * it will be freed by destroy_read_struct. + */ + if (png_ptr->unknown_chunk.data != NULL) + png_free(png_ptr, png_ptr->unknown_chunk.data); + png_ptr->unknown_chunk.data = NULL; + +#else /* !PNG_READ_UNKNOWN_CHUNKS_SUPPORTED */ + /* There is no support to read an unknown chunk, so just skip it. */ + png_crc_finish(png_ptr, length); + PNG_UNUSED(info_ptr) + PNG_UNUSED(keep) +#endif /* !PNG_READ_UNKNOWN_CHUNKS_SUPPORTED */ + + /* Check for unhandled critical chunks */ + if (!handled && PNG_CHUNK_CRITICAL(png_ptr->chunk_name)) + png_chunk_error(png_ptr, "unhandled critical chunk"); +} + +/* This function is called to verify that a chunk name is valid. + * This function can't have the "critical chunk check" incorporated + * into it, since in the future we will need to be able to call user + * functions to handle unknown critical chunks after we check that + * the chunk name itself is valid. + */ + +/* Bit hacking: the test for an invalid byte in the 4 byte chunk name is: + * + * ((c) < 65 || (c) > 122 || ((c) > 90 && (c) < 97)) + */ + +void /* PRIVATE */ +png_check_chunk_name(png_structrp png_ptr, png_uint_32 chunk_name) +{ + int i; + + png_debug(1, "in png_check_chunk_name"); + + for (i=1; i<=4; ++i) + { + int c = chunk_name & 0xff; + + if (c < 65 || c > 122 || (c > 90 && c < 97)) + png_chunk_error(png_ptr, "invalid chunk type"); + + chunk_name >>= 8; + } +} + +/* Combines the row recently read in with the existing pixels in the row. This + * routine takes care of alpha and transparency if requested. This routine also + * handles the two methods of progressive display of interlaced images, + * depending on the 'display' value; if 'display' is true then the whole row + * (dp) is filled from the start by replicating the available pixels. If + * 'display' is false only those pixels present in the pass are filled in. + */ +void /* PRIVATE */ +png_combine_row(png_const_structrp png_ptr, png_bytep dp, int display) +{ + unsigned int pixel_depth = png_ptr->transformed_pixel_depth; + png_const_bytep sp = png_ptr->row_buf + 1; + png_uint_32 row_width = png_ptr->width; + unsigned int pass = png_ptr->pass; + png_bytep end_ptr = 0; + png_byte end_byte = 0; + unsigned int end_mask; + + png_debug(1, "in png_combine_row"); + + /* Added in 1.5.6: it should not be possible to enter this routine until at + * least one row has been read from the PNG data and transformed. + */ + if (pixel_depth == 0) + png_error(png_ptr, "internal row logic error"); + + /* Added in 1.5.4: the pixel depth should match the information returned by + * any call to png_read_update_info at this point. Do not continue if we got + * this wrong. + */ + if (png_ptr->info_rowbytes != 0 && png_ptr->info_rowbytes != + PNG_ROWBYTES(pixel_depth, row_width)) + png_error(png_ptr, "internal row size calculation error"); + + /* Don't expect this to ever happen: */ + if (row_width == 0) + png_error(png_ptr, "internal row width error"); + + /* Preserve the last byte in cases where only part of it will be overwritten, + * the multiply below may overflow, we don't care because ANSI-C guarantees + * we get the low bits. + */ + end_mask = (pixel_depth * row_width) & 7; + if (end_mask != 0) + { + /* end_ptr == NULL is a flag to say do nothing */ + end_ptr = dp + PNG_ROWBYTES(pixel_depth, row_width) - 1; + end_byte = *end_ptr; +# ifdef PNG_READ_PACKSWAP_SUPPORTED + if (png_ptr->transformations & PNG_PACKSWAP) /* little-endian byte */ + end_mask = 0xff << end_mask; + + else /* big-endian byte */ +# endif + end_mask = 0xff >> end_mask; + /* end_mask is now the bits to *keep* from the destination row */ + } + + /* For non-interlaced images this reduces to a memcpy(). A memcpy() + * will also happen if interlacing isn't supported or if the application + * does not call png_set_interlace_handling(). In the latter cases the + * caller just gets a sequence of the unexpanded rows from each interlace + * pass. + */ +#ifdef PNG_READ_INTERLACING_SUPPORTED + if (png_ptr->interlaced && (png_ptr->transformations & PNG_INTERLACE) && + pass < 6 && (display == 0 || + /* The following copies everything for 'display' on passes 0, 2 and 4. */ + (display == 1 && (pass & 1) != 0))) + { + /* Narrow images may have no bits in a pass; the caller should handle + * this, but this test is cheap: + */ + if (row_width <= PNG_PASS_START_COL(pass)) + return; + + if (pixel_depth < 8) + { + /* For pixel depths up to 4 bpp the 8-pixel mask can be expanded to fit + * into 32 bits, then a single loop over the bytes using the four byte + * values in the 32-bit mask can be used. For the 'display' option the + * expanded mask may also not require any masking within a byte. To + * make this work the PACKSWAP option must be taken into account - it + * simply requires the pixels to be reversed in each byte. + * + * The 'regular' case requires a mask for each of the first 6 passes, + * the 'display' case does a copy for the even passes in the range + * 0..6. This has already been handled in the test above. + * + * The masks are arranged as four bytes with the first byte to use in + * the lowest bits (little-endian) regardless of the order (PACKSWAP or + * not) of the pixels in each byte. + * + * NOTE: the whole of this logic depends on the caller of this function + * only calling it on rows appropriate to the pass. This function only + * understands the 'x' logic; the 'y' logic is handled by the caller. + * + * The following defines allow generation of compile time constant bit + * masks for each pixel depth and each possibility of swapped or not + * swapped bytes. Pass 'p' is in the range 0..6; 'x', a pixel index, + * is in the range 0..7; and the result is 1 if the pixel is to be + * copied in the pass, 0 if not. 'S' is for the sparkle method, 'B' + * for the block method. + * + * With some compilers a compile time expression of the general form: + * + * (shift >= 32) ? (a >> (shift-32)) : (b >> shift) + * + * Produces warnings with values of 'shift' in the range 33 to 63 + * because the right hand side of the ?: expression is evaluated by + * the compiler even though it isn't used. Microsoft Visual C (various + * versions) and the Intel C compiler are known to do this. To avoid + * this the following macros are used in 1.5.6. This is a temporary + * solution to avoid destabilizing the code during the release process. + */ +# if PNG_USE_COMPILE_TIME_MASKS +# define PNG_LSR(x,s) ((x)>>((s) & 0x1f)) +# define PNG_LSL(x,s) ((x)<<((s) & 0x1f)) +# else +# define PNG_LSR(x,s) ((x)>>(s)) +# define PNG_LSL(x,s) ((x)<<(s)) +# endif +# define S_COPY(p,x) (((p)<4 ? PNG_LSR(0x80088822,(3-(p))*8+(7-(x))) :\ + PNG_LSR(0xaa55ff00,(7-(p))*8+(7-(x)))) & 1) +# define B_COPY(p,x) (((p)<4 ? PNG_LSR(0xff0fff33,(3-(p))*8+(7-(x))) :\ + PNG_LSR(0xff55ff00,(7-(p))*8+(7-(x)))) & 1) + + /* Return a mask for pass 'p' pixel 'x' at depth 'd'. The mask is + * little endian - the first pixel is at bit 0 - however the extra + * parameter 's' can be set to cause the mask position to be swapped + * within each byte, to match the PNG format. This is done by XOR of + * the shift with 7, 6 or 4 for bit depths 1, 2 and 4. + */ +# define PIXEL_MASK(p,x,d,s) \ + (PNG_LSL(((PNG_LSL(1U,(d)))-1),(((x)*(d))^((s)?8-(d):0)))) + + /* Hence generate the appropriate 'block' or 'sparkle' pixel copy mask. + */ +# define S_MASKx(p,x,d,s) (S_COPY(p,x)?PIXEL_MASK(p,x,d,s):0) +# define B_MASKx(p,x,d,s) (B_COPY(p,x)?PIXEL_MASK(p,x,d,s):0) + + /* Combine 8 of these to get the full mask. For the 1-bpp and 2-bpp + * cases the result needs replicating, for the 4-bpp case the above + * generates a full 32 bits. + */ +# define MASK_EXPAND(m,d) ((m)*((d)==1?0x01010101:((d)==2?0x00010001:1))) + +# define S_MASK(p,d,s) MASK_EXPAND(S_MASKx(p,0,d,s) + S_MASKx(p,1,d,s) +\ + S_MASKx(p,2,d,s) + S_MASKx(p,3,d,s) + S_MASKx(p,4,d,s) +\ + S_MASKx(p,5,d,s) + S_MASKx(p,6,d,s) + S_MASKx(p,7,d,s), d) + +# define B_MASK(p,d,s) MASK_EXPAND(B_MASKx(p,0,d,s) + B_MASKx(p,1,d,s) +\ + B_MASKx(p,2,d,s) + B_MASKx(p,3,d,s) + B_MASKx(p,4,d,s) +\ + B_MASKx(p,5,d,s) + B_MASKx(p,6,d,s) + B_MASKx(p,7,d,s), d) + +#if PNG_USE_COMPILE_TIME_MASKS + /* Utility macros to construct all the masks for a depth/swap + * combination. The 's' parameter says whether the format is PNG + * (big endian bytes) or not. Only the three odd-numbered passes are + * required for the display/block algorithm. + */ +# define S_MASKS(d,s) { S_MASK(0,d,s), S_MASK(1,d,s), S_MASK(2,d,s),\ + S_MASK(3,d,s), S_MASK(4,d,s), S_MASK(5,d,s) } + +# define B_MASKS(d,s) { B_MASK(1,d,s), B_MASK(3,d,s), B_MASK(5,d,s) } + +# define DEPTH_INDEX(d) ((d)==1?0:((d)==2?1:2)) + + /* Hence the pre-compiled masks indexed by PACKSWAP (or not), depth and + * then pass: + */ + static PNG_CONST png_uint_32 row_mask[2/*PACKSWAP*/][3/*depth*/][6] = + { + /* Little-endian byte masks for PACKSWAP */ + { S_MASKS(1,0), S_MASKS(2,0), S_MASKS(4,0) }, + /* Normal (big-endian byte) masks - PNG format */ + { S_MASKS(1,1), S_MASKS(2,1), S_MASKS(4,1) } + }; + + /* display_mask has only three entries for the odd passes, so index by + * pass>>1. + */ + static PNG_CONST png_uint_32 display_mask[2][3][3] = + { + /* Little-endian byte masks for PACKSWAP */ + { B_MASKS(1,0), B_MASKS(2,0), B_MASKS(4,0) }, + /* Normal (big-endian byte) masks - PNG format */ + { B_MASKS(1,1), B_MASKS(2,1), B_MASKS(4,1) } + }; + +# define MASK(pass,depth,display,png)\ + ((display)?display_mask[png][DEPTH_INDEX(depth)][pass>>1]:\ + row_mask[png][DEPTH_INDEX(depth)][pass]) + +#else /* !PNG_USE_COMPILE_TIME_MASKS */ + /* This is the runtime alternative: it seems unlikely that this will + * ever be either smaller or faster than the compile time approach. + */ +# define MASK(pass,depth,display,png)\ + ((display)?B_MASK(pass,depth,png):S_MASK(pass,depth,png)) +#endif /* !PNG_USE_COMPILE_TIME_MASKS */ + + /* Use the appropriate mask to copy the required bits. In some cases + * the byte mask will be 0 or 0xff; optimize these cases. row_width is + * the number of pixels, but the code copies bytes, so it is necessary + * to special case the end. + */ + png_uint_32 pixels_per_byte = 8 / pixel_depth; + png_uint_32 mask; + +# ifdef PNG_READ_PACKSWAP_SUPPORTED + if (png_ptr->transformations & PNG_PACKSWAP) + mask = MASK(pass, pixel_depth, display, 0); + + else +# endif + mask = MASK(pass, pixel_depth, display, 1); + + for (;;) + { + png_uint_32 m; + + /* It doesn't matter in the following if png_uint_32 has more than + * 32 bits because the high bits always match those in m<<24; it is, + * however, essential to use OR here, not +, because of this. + */ + m = mask; + mask = (m >> 8) | (m << 24); /* rotate right to good compilers */ + m &= 0xff; + + if (m != 0) /* something to copy */ + { + if (m != 0xff) + *dp = (png_byte)((*dp & ~m) | (*sp & m)); + else + *dp = *sp; + } + + /* NOTE: this may overwrite the last byte with garbage if the image + * is not an exact number of bytes wide; libpng has always done + * this. + */ + if (row_width <= pixels_per_byte) + break; /* May need to restore part of the last byte */ + + row_width -= pixels_per_byte; + ++dp; + ++sp; + } + } + + else /* pixel_depth >= 8 */ + { + unsigned int bytes_to_copy, bytes_to_jump; + + /* Validate the depth - it must be a multiple of 8 */ + if (pixel_depth & 7) + png_error(png_ptr, "invalid user transform pixel depth"); + + pixel_depth >>= 3; /* now in bytes */ + row_width *= pixel_depth; + + /* Regardless of pass number the Adam 7 interlace always results in a + * fixed number of pixels to copy then to skip. There may be a + * different number of pixels to skip at the start though. + */ + { + unsigned int offset = PNG_PASS_START_COL(pass) * pixel_depth; + + row_width -= offset; + dp += offset; + sp += offset; + } + + /* Work out the bytes to copy. */ + if (display != 0) + { + /* When doing the 'block' algorithm the pixel in the pass gets + * replicated to adjacent pixels. This is why the even (0,2,4,6) + * passes are skipped above - the entire expanded row is copied. + */ + bytes_to_copy = (1<<((6-pass)>>1)) * pixel_depth; + + /* But don't allow this number to exceed the actual row width. */ + if (bytes_to_copy > row_width) + bytes_to_copy = row_width; + } + + else /* normal row; Adam7 only ever gives us one pixel to copy. */ + bytes_to_copy = pixel_depth; + + /* In Adam7 there is a constant offset between where the pixels go. */ + bytes_to_jump = PNG_PASS_COL_OFFSET(pass) * pixel_depth; + + /* And simply copy these bytes. Some optimization is possible here, + * depending on the value of 'bytes_to_copy'. Special case the low + * byte counts, which we know to be frequent. + * + * Notice that these cases all 'return' rather than 'break' - this + * avoids an unnecessary test on whether to restore the last byte + * below. + */ + switch (bytes_to_copy) + { + case 1: + for (;;) + { + *dp = *sp; + + if (row_width <= bytes_to_jump) + return; + + dp += bytes_to_jump; + sp += bytes_to_jump; + row_width -= bytes_to_jump; + } + + case 2: + /* There is a possibility of a partial copy at the end here; this + * slows the code down somewhat. + */ + do + { + dp[0] = sp[0], dp[1] = sp[1]; + + if (row_width <= bytes_to_jump) + return; + + sp += bytes_to_jump; + dp += bytes_to_jump; + row_width -= bytes_to_jump; + } + while (row_width > 1); + + /* And there can only be one byte left at this point: */ + *dp = *sp; + return; + + case 3: + /* This can only be the RGB case, so each copy is exactly one + * pixel and it is not necessary to check for a partial copy. + */ + for(;;) + { + dp[0] = sp[0], dp[1] = sp[1], dp[2] = sp[2]; + + if (row_width <= bytes_to_jump) + return; + + sp += bytes_to_jump; + dp += bytes_to_jump; + row_width -= bytes_to_jump; + } + + default: +#if PNG_ALIGN_TYPE != PNG_ALIGN_NONE + /* Check for double byte alignment and, if possible, use a + * 16-bit copy. Don't attempt this for narrow images - ones that + * are less than an interlace panel wide. Don't attempt it for + * wide bytes_to_copy either - use the memcpy there. + */ + if (bytes_to_copy < 16 /*else use memcpy*/ && + png_isaligned(dp, png_uint_16) && + png_isaligned(sp, png_uint_16) && + bytes_to_copy % (sizeof (png_uint_16)) == 0 && + bytes_to_jump % (sizeof (png_uint_16)) == 0) + { + /* Everything is aligned for png_uint_16 copies, but try for + * png_uint_32 first. + */ + if (png_isaligned(dp, png_uint_32) && + png_isaligned(sp, png_uint_32) && + bytes_to_copy % (sizeof (png_uint_32)) == 0 && + bytes_to_jump % (sizeof (png_uint_32)) == 0) + { + png_uint_32p dp32 = png_aligncast(png_uint_32p,dp); + png_const_uint_32p sp32 = png_aligncastconst( + png_const_uint_32p, sp); + size_t skip = (bytes_to_jump-bytes_to_copy) / + (sizeof (png_uint_32)); + + do + { + size_t c = bytes_to_copy; + do + { + *dp32++ = *sp32++; + c -= (sizeof (png_uint_32)); + } + while (c > 0); + + if (row_width <= bytes_to_jump) + return; + + dp32 += skip; + sp32 += skip; + row_width -= bytes_to_jump; + } + while (bytes_to_copy <= row_width); + + /* Get to here when the row_width truncates the final copy. + * There will be 1-3 bytes left to copy, so don't try the + * 16-bit loop below. + */ + dp = (png_bytep)dp32; + sp = (png_const_bytep)sp32; + do + *dp++ = *sp++; + while (--row_width > 0); + return; + } + + /* Else do it in 16-bit quantities, but only if the size is + * not too large. + */ + else + { + png_uint_16p dp16 = png_aligncast(png_uint_16p, dp); + png_const_uint_16p sp16 = png_aligncastconst( + png_const_uint_16p, sp); + size_t skip = (bytes_to_jump-bytes_to_copy) / + (sizeof (png_uint_16)); + + do + { + size_t c = bytes_to_copy; + do + { + *dp16++ = *sp16++; + c -= (sizeof (png_uint_16)); + } + while (c > 0); + + if (row_width <= bytes_to_jump) + return; + + dp16 += skip; + sp16 += skip; + row_width -= bytes_to_jump; + } + while (bytes_to_copy <= row_width); + + /* End of row - 1 byte left, bytes_to_copy > row_width: */ + dp = (png_bytep)dp16; + sp = (png_const_bytep)sp16; + do + *dp++ = *sp++; + while (--row_width > 0); + return; + } + } +#endif /* PNG_ALIGN_ code */ + + /* The true default - use a memcpy: */ + for (;;) + { + memcpy(dp, sp, bytes_to_copy); + + if (row_width <= bytes_to_jump) + return; + + sp += bytes_to_jump; + dp += bytes_to_jump; + row_width -= bytes_to_jump; + if (bytes_to_copy > row_width) + bytes_to_copy = row_width; + } + } + + /* NOT REACHED*/ + } /* pixel_depth >= 8 */ + + /* Here if pixel_depth < 8 to check 'end_ptr' below. */ + } + else +#endif /* PNG_READ_INTERLACING_SUPPORTED */ + + /* If here then the switch above wasn't used so just memcpy the whole row + * from the temporary row buffer (notice that this overwrites the end of the + * destination row if it is a partial byte.) + */ + memcpy(dp, sp, PNG_ROWBYTES(pixel_depth, row_width)); + + /* Restore the overwritten bits from the last byte if necessary. */ + if (end_ptr != NULL) + *end_ptr = (png_byte)((end_byte & end_mask) | (*end_ptr & ~end_mask)); +} + +#ifdef PNG_READ_INTERLACING_SUPPORTED +void /* PRIVATE */ +png_do_read_interlace(png_row_infop row_info, png_bytep row, int pass, + png_uint_32 transformations /* Because these may affect the byte layout */) +{ + /* Arrays to facilitate easy interlacing - use pass (0 - 6) as index */ + /* Offset to next interlace block */ + static PNG_CONST int png_pass_inc[7] = {8, 8, 4, 4, 2, 2, 1}; + + png_debug(1, "in png_do_read_interlace"); + if (row != NULL && row_info != NULL) + { + png_uint_32 final_width; + + final_width = row_info->width * png_pass_inc[pass]; + + switch (row_info->pixel_depth) + { + case 1: + { + png_bytep sp = row + (png_size_t)((row_info->width - 1) >> 3); + png_bytep dp = row + (png_size_t)((final_width - 1) >> 3); + int sshift, dshift; + int s_start, s_end, s_inc; + int jstop = png_pass_inc[pass]; + png_byte v; + png_uint_32 i; + int j; + +#ifdef PNG_READ_PACKSWAP_SUPPORTED + if (transformations & PNG_PACKSWAP) + { + sshift = (int)((row_info->width + 7) & 0x07); + dshift = (int)((final_width + 7) & 0x07); + s_start = 7; + s_end = 0; + s_inc = -1; + } + + else +#endif + { + sshift = 7 - (int)((row_info->width + 7) & 0x07); + dshift = 7 - (int)((final_width + 7) & 0x07); + s_start = 0; + s_end = 7; + s_inc = 1; + } + + for (i = 0; i < row_info->width; i++) + { + v = (png_byte)((*sp >> sshift) & 0x01); + for (j = 0; j < jstop; j++) + { + unsigned int tmp = *dp & (0x7f7f >> (7 - dshift)); + tmp |= v << dshift; + *dp = (png_byte)(tmp & 0xff); + + if (dshift == s_end) + { + dshift = s_start; + dp--; + } + + else + dshift += s_inc; + } + + if (sshift == s_end) + { + sshift = s_start; + sp--; + } + + else + sshift += s_inc; + } + break; + } + + case 2: + { + png_bytep sp = row + (png_uint_32)((row_info->width - 1) >> 2); + png_bytep dp = row + (png_uint_32)((final_width - 1) >> 2); + int sshift, dshift; + int s_start, s_end, s_inc; + int jstop = png_pass_inc[pass]; + png_uint_32 i; + +#ifdef PNG_READ_PACKSWAP_SUPPORTED + if (transformations & PNG_PACKSWAP) + { + sshift = (int)(((row_info->width + 3) & 0x03) << 1); + dshift = (int)(((final_width + 3) & 0x03) << 1); + s_start = 6; + s_end = 0; + s_inc = -2; + } + + else +#endif + { + sshift = (int)((3 - ((row_info->width + 3) & 0x03)) << 1); + dshift = (int)((3 - ((final_width + 3) & 0x03)) << 1); + s_start = 0; + s_end = 6; + s_inc = 2; + } + + for (i = 0; i < row_info->width; i++) + { + png_byte v; + int j; + + v = (png_byte)((*sp >> sshift) & 0x03); + for (j = 0; j < jstop; j++) + { + unsigned int tmp = *dp & (0x3f3f >> (6 - dshift)); + tmp |= v << dshift; + *dp = (png_byte)(tmp & 0xff); + + if (dshift == s_end) + { + dshift = s_start; + dp--; + } + + else + dshift += s_inc; + } + + if (sshift == s_end) + { + sshift = s_start; + sp--; + } + + else + sshift += s_inc; + } + break; + } + + case 4: + { + png_bytep sp = row + (png_size_t)((row_info->width - 1) >> 1); + png_bytep dp = row + (png_size_t)((final_width - 1) >> 1); + int sshift, dshift; + int s_start, s_end, s_inc; + png_uint_32 i; + int jstop = png_pass_inc[pass]; + +#ifdef PNG_READ_PACKSWAP_SUPPORTED + if (transformations & PNG_PACKSWAP) + { + sshift = (int)(((row_info->width + 1) & 0x01) << 2); + dshift = (int)(((final_width + 1) & 0x01) << 2); + s_start = 4; + s_end = 0; + s_inc = -4; + } + + else +#endif + { + sshift = (int)((1 - ((row_info->width + 1) & 0x01)) << 2); + dshift = (int)((1 - ((final_width + 1) & 0x01)) << 2); + s_start = 0; + s_end = 4; + s_inc = 4; + } + + for (i = 0; i < row_info->width; i++) + { + png_byte v = (png_byte)((*sp >> sshift) & 0x0f); + int j; + + for (j = 0; j < jstop; j++) + { + unsigned int tmp = *dp & (0xf0f >> (4 - dshift)); + tmp |= v << dshift; + *dp = (png_byte)(tmp & 0xff); + + if (dshift == s_end) + { + dshift = s_start; + dp--; + } + + else + dshift += s_inc; + } + + if (sshift == s_end) + { + sshift = s_start; + sp--; + } + + else + sshift += s_inc; + } + break; + } + + default: + { + png_size_t pixel_bytes = (row_info->pixel_depth >> 3); + + png_bytep sp = row + (png_size_t)(row_info->width - 1) + * pixel_bytes; + + png_bytep dp = row + (png_size_t)(final_width - 1) * pixel_bytes; + + int jstop = png_pass_inc[pass]; + png_uint_32 i; + + for (i = 0; i < row_info->width; i++) + { + png_byte v[8]; /* SAFE; pixel_depth does not exceed 64 */ + int j; + + memcpy(v, sp, pixel_bytes); + + for (j = 0; j < jstop; j++) + { + memcpy(dp, v, pixel_bytes); + dp -= pixel_bytes; + } + + sp -= pixel_bytes; + } + break; + } + } + + row_info->width = final_width; + row_info->rowbytes = PNG_ROWBYTES(row_info->pixel_depth, final_width); + } +#ifndef PNG_READ_PACKSWAP_SUPPORTED + PNG_UNUSED(transformations) /* Silence compiler warning */ +#endif +} +#endif /* PNG_READ_INTERLACING_SUPPORTED */ + +static void +png_read_filter_row_sub(png_row_infop row_info, png_bytep row, + png_const_bytep prev_row) +{ + png_size_t i; + png_size_t istop = row_info->rowbytes; + unsigned int bpp = (row_info->pixel_depth + 7) >> 3; + png_bytep rp = row + bpp; + + PNG_UNUSED(prev_row) + + for (i = bpp; i < istop; i++) + { + *rp = (png_byte)(((int)(*rp) + (int)(*(rp-bpp))) & 0xff); + rp++; + } +} + +static void +png_read_filter_row_up(png_row_infop row_info, png_bytep row, + png_const_bytep prev_row) +{ + png_size_t i; + png_size_t istop = row_info->rowbytes; + png_bytep rp = row; + png_const_bytep pp = prev_row; + + for (i = 0; i < istop; i++) + { + *rp = (png_byte)(((int)(*rp) + (int)(*pp++)) & 0xff); + rp++; + } +} + +static void +png_read_filter_row_avg(png_row_infop row_info, png_bytep row, + png_const_bytep prev_row) +{ + png_size_t i; + png_bytep rp = row; + png_const_bytep pp = prev_row; + unsigned int bpp = (row_info->pixel_depth + 7) >> 3; + png_size_t istop = row_info->rowbytes - bpp; + + for (i = 0; i < bpp; i++) + { + *rp = (png_byte)(((int)(*rp) + + ((int)(*pp++) / 2 )) & 0xff); + + rp++; + } + + for (i = 0; i < istop; i++) + { + *rp = (png_byte)(((int)(*rp) + + (int)(*pp++ + *(rp-bpp)) / 2 ) & 0xff); + + rp++; + } +} + +static void +png_read_filter_row_paeth_1byte_pixel(png_row_infop row_info, png_bytep row, + png_const_bytep prev_row) +{ + png_bytep rp_end = row + row_info->rowbytes; + int a, c; + + /* First pixel/byte */ + c = *prev_row++; + a = *row + c; + *row++ = (png_byte)a; + + /* Remainder */ + while (row < rp_end) + { + int b, pa, pb, pc, p; + + a &= 0xff; /* From previous iteration or start */ + b = *prev_row++; + + p = b - c; + pc = a - c; + +# ifdef PNG_USE_ABS + pa = abs(p); + pb = abs(pc); + pc = abs(p + pc); +# else + pa = p < 0 ? -p : p; + pb = pc < 0 ? -pc : pc; + pc = (p + pc) < 0 ? -(p + pc) : p + pc; +# endif + + /* Find the best predictor, the least of pa, pb, pc favoring the earlier + * ones in the case of a tie. + */ + if (pb < pa) pa = pb, a = b; + if (pc < pa) a = c; + + /* Calculate the current pixel in a, and move the previous row pixel to c + * for the next time round the loop + */ + c = b; + a += *row; + *row++ = (png_byte)a; + } +} + +static void +png_read_filter_row_paeth_multibyte_pixel(png_row_infop row_info, png_bytep row, + png_const_bytep prev_row) +{ + int bpp = (row_info->pixel_depth + 7) >> 3; + png_bytep rp_end = row + bpp; + + /* Process the first pixel in the row completely (this is the same as 'up' + * because there is only one candidate predictor for the first row). + */ + while (row < rp_end) + { + int a = *row + *prev_row++; + *row++ = (png_byte)a; + } + + /* Remainder */ + rp_end += row_info->rowbytes - bpp; + + while (row < rp_end) + { + int a, b, c, pa, pb, pc, p; + + c = *(prev_row - bpp); + a = *(row - bpp); + b = *prev_row++; + + p = b - c; + pc = a - c; + +# ifdef PNG_USE_ABS + pa = abs(p); + pb = abs(pc); + pc = abs(p + pc); +# else + pa = p < 0 ? -p : p; + pb = pc < 0 ? -pc : pc; + pc = (p + pc) < 0 ? -(p + pc) : p + pc; +# endif + + if (pb < pa) pa = pb, a = b; + if (pc < pa) a = c; + + a += *row; + *row++ = (png_byte)a; + } +} + +static void +png_init_filter_functions(png_structrp pp) + /* This function is called once for every PNG image (except for PNG images + * that only use PNG_FILTER_VALUE_NONE for all rows) to set the + * implementations required to reverse the filtering of PNG rows. Reversing + * the filter is the first transformation performed on the row data. It is + * performed in place, therefore an implementation can be selected based on + * the image pixel format. If the implementation depends on image width then + * take care to ensure that it works correctly if the image is interlaced - + * interlacing causes the actual row width to vary. + */ +{ + unsigned int bpp = (pp->pixel_depth + 7) >> 3; + + pp->read_filter[PNG_FILTER_VALUE_SUB-1] = png_read_filter_row_sub; + pp->read_filter[PNG_FILTER_VALUE_UP-1] = png_read_filter_row_up; + pp->read_filter[PNG_FILTER_VALUE_AVG-1] = png_read_filter_row_avg; + if (bpp == 1) + pp->read_filter[PNG_FILTER_VALUE_PAETH-1] = + png_read_filter_row_paeth_1byte_pixel; + else + pp->read_filter[PNG_FILTER_VALUE_PAETH-1] = + png_read_filter_row_paeth_multibyte_pixel; + +#ifdef PNG_FILTER_OPTIMIZATIONS + /* To use this define PNG_FILTER_OPTIMIZATIONS as the name of a function to + * call to install hardware optimizations for the above functions; simply + * replace whatever elements of the pp->read_filter[] array with a hardware + * specific (or, for that matter, generic) optimization. + * + * To see an example of this examine what configure.ac does when + * --enable-arm-neon is specified on the command line. + */ + PNG_FILTER_OPTIMIZATIONS(pp, bpp); +#endif +} + +void /* PRIVATE */ +png_read_filter_row(png_structrp pp, png_row_infop row_info, png_bytep row, + png_const_bytep prev_row, int filter) +{ + /* OPTIMIZATION: DO NOT MODIFY THIS FUNCTION, instead #define + * PNG_FILTER_OPTIMIZATIONS to a function that overrides the generic + * implementations. See png_init_filter_functions above. + */ + if (filter > PNG_FILTER_VALUE_NONE && filter < PNG_FILTER_VALUE_LAST) + { + if (pp->read_filter[0] == NULL) + png_init_filter_functions(pp); + + pp->read_filter[filter-1](row_info, row, prev_row); + } +} + +#ifdef PNG_SEQUENTIAL_READ_SUPPORTED +void /* PRIVATE */ +png_read_IDAT_data(png_structrp png_ptr, png_bytep output, + png_alloc_size_t avail_out) +{ + /* Loop reading IDATs and decompressing the result into output[avail_out] */ + png_ptr->zstream.next_out = output; + png_ptr->zstream.avail_out = 0; /* safety: set below */ + + if (output == NULL) + avail_out = 0; + + do + { + int ret; + png_byte tmpbuf[PNG_INFLATE_BUF_SIZE]; + + if (png_ptr->zstream.avail_in == 0) + { + uInt avail_in; + png_bytep buffer; + + while (png_ptr->idat_size == 0) + { + png_crc_finish(png_ptr, 0); + + png_ptr->idat_size = png_read_chunk_header(png_ptr); + /* This is an error even in the 'check' case because the code just + * consumed a non-IDAT header. + */ + if (png_ptr->chunk_name != png_IDAT) + png_error(png_ptr, "Not enough image data"); + } + + avail_in = png_ptr->IDAT_read_size; + + if (avail_in > png_ptr->idat_size) + avail_in = (uInt)png_ptr->idat_size; + + /* A PNG with a gradually increasing IDAT size will defeat this attempt + * to minimize memory usage by causing lots of re-allocs, but + * realistically doing IDAT_read_size re-allocs is not likely to be a + * big problem. + */ + buffer = png_read_buffer(png_ptr, avail_in, 0/*error*/); + + png_crc_read(png_ptr, buffer, avail_in); + png_ptr->idat_size -= avail_in; + + png_ptr->zstream.next_in = buffer; + png_ptr->zstream.avail_in = avail_in; + } + + /* And set up the output side. */ + if (output != NULL) /* standard read */ + { + uInt out = ZLIB_IO_MAX; + + if (out > avail_out) + out = (uInt)avail_out; + + avail_out -= out; + png_ptr->zstream.avail_out = out; + } + + else /* after last row, checking for end */ + { + png_ptr->zstream.next_out = tmpbuf; + png_ptr->zstream.avail_out = (sizeof tmpbuf); + } + + /* Use NO_FLUSH; this gives zlib the maximum opportunity to optimize the + * process. If the LZ stream is truncated the sequential reader will + * terminally damage the stream, above, by reading the chunk header of the + * following chunk (it then exits with png_error). + * + * TODO: deal more elegantly with truncated IDAT lists. + */ + ret = inflate(&png_ptr->zstream, Z_NO_FLUSH); + + /* Take the unconsumed output back. */ + if (output != NULL) + avail_out += png_ptr->zstream.avail_out; + + else /* avail_out counts the extra bytes */ + avail_out += (sizeof tmpbuf) - png_ptr->zstream.avail_out; + + png_ptr->zstream.avail_out = 0; + + if (ret == Z_STREAM_END) + { + /* Do this for safety; we won't read any more into this row. */ + png_ptr->zstream.next_out = NULL; + + png_ptr->mode |= PNG_AFTER_IDAT; + png_ptr->flags |= PNG_FLAG_ZSTREAM_ENDED; + + if (png_ptr->zstream.avail_in > 0 || png_ptr->idat_size > 0) + png_chunk_benign_error(png_ptr, "Extra compressed data"); + break; + } + + if (ret != Z_OK) + { + png_zstream_error(png_ptr, ret); + + if (output != NULL) + png_chunk_error(png_ptr, png_ptr->zstream.msg); + + else /* checking */ + { + png_chunk_benign_error(png_ptr, png_ptr->zstream.msg); + return; + } + } + } while (avail_out > 0); + + if (avail_out > 0) + { + /* The stream ended before the image; this is the same as too few IDATs so + * should be handled the same way. + */ + if (output != NULL) + png_error(png_ptr, "Not enough image data"); + + else /* the deflate stream contained extra data */ + png_chunk_benign_error(png_ptr, "Too much image data"); + } +} + +void /* PRIVATE */ +png_read_finish_IDAT(png_structrp png_ptr) +{ + /* We don't need any more data and the stream should have ended, however the + * LZ end code may actually not have been processed. In this case we must + * read it otherwise stray unread IDAT data or, more likely, an IDAT chunk + * may still remain to be consumed. + */ + if (!(png_ptr->flags & PNG_FLAG_ZSTREAM_ENDED)) + { + /* The NULL causes png_read_IDAT_data to swallow any remaining bytes in + * the compressed stream, but the stream may be damaged too, so even after + * this call we may need to terminate the zstream ownership. + */ + png_read_IDAT_data(png_ptr, NULL, 0); + png_ptr->zstream.next_out = NULL; /* safety */ + + /* Now clear everything out for safety; the following may not have been + * done. + */ + if (!(png_ptr->flags & PNG_FLAG_ZSTREAM_ENDED)) + { + png_ptr->mode |= PNG_AFTER_IDAT; + png_ptr->flags |= PNG_FLAG_ZSTREAM_ENDED; + } + } + + /* If the zstream has not been released do it now *and* terminate the reading + * of the final IDAT chunk. + */ + if (png_ptr->zowner == png_IDAT) + { + /* Always do this; the pointers otherwise point into the read buffer. */ + png_ptr->zstream.next_in = NULL; + png_ptr->zstream.avail_in = 0; + + /* Now we no longer own the zstream. */ + png_ptr->zowner = 0; + + /* The slightly weird semantics of the sequential IDAT reading is that we + * are always in or at the end of an IDAT chunk, so we always need to do a + * crc_finish here. If idat_size is non-zero we also need to read the + * spurious bytes at the end of the chunk now. + */ + (void)png_crc_finish(png_ptr, png_ptr->idat_size); + } +} + +void /* PRIVATE */ +png_read_finish_row(png_structrp png_ptr) +{ + /* Arrays to facilitate easy interlacing - use pass (0 - 6) as index */ + + /* Start of interlace block */ + static PNG_CONST png_byte png_pass_start[7] = {0, 4, 0, 2, 0, 1, 0}; + + /* Offset to next interlace block */ + static PNG_CONST png_byte png_pass_inc[7] = {8, 8, 4, 4, 2, 2, 1}; + + /* Start of interlace block in the y direction */ + static PNG_CONST png_byte png_pass_ystart[7] = {0, 0, 4, 0, 2, 0, 1}; + + /* Offset to next interlace block in the y direction */ + static PNG_CONST png_byte png_pass_yinc[7] = {8, 8, 8, 4, 4, 2, 2}; + + png_debug(1, "in png_read_finish_row"); + png_ptr->row_number++; + if (png_ptr->row_number < png_ptr->num_rows) + return; + + if (png_ptr->interlaced) + { + png_ptr->row_number = 0; + + /* TO DO: don't do this if prev_row isn't needed (requires + * read-ahead of the next row's filter byte. + */ + memset(png_ptr->prev_row, 0, png_ptr->rowbytes + 1); + + do + { + png_ptr->pass++; + + if (png_ptr->pass >= 7) + break; + + png_ptr->iwidth = (png_ptr->width + + png_pass_inc[png_ptr->pass] - 1 - + png_pass_start[png_ptr->pass]) / + png_pass_inc[png_ptr->pass]; + + if (!(png_ptr->transformations & PNG_INTERLACE)) + { + png_ptr->num_rows = (png_ptr->height + + png_pass_yinc[png_ptr->pass] - 1 - + png_pass_ystart[png_ptr->pass]) / + png_pass_yinc[png_ptr->pass]; + } + + else /* if (png_ptr->transformations & PNG_INTERLACE) */ + break; /* libpng deinterlacing sees every row */ + + } while (png_ptr->num_rows == 0 || png_ptr->iwidth == 0); + + if (png_ptr->pass < 7) + return; + } + + /* Here after at the end of the last row of the last pass. */ + png_read_finish_IDAT(png_ptr); +} +#endif /* PNG_SEQUENTIAL_READ_SUPPORTED */ + +void /* PRIVATE */ +png_read_start_row(png_structrp png_ptr) +{ + /* Arrays to facilitate easy interlacing - use pass (0 - 6) as index */ + + /* Start of interlace block */ + static PNG_CONST png_byte png_pass_start[7] = {0, 4, 0, 2, 0, 1, 0}; + + /* Offset to next interlace block */ + static PNG_CONST png_byte png_pass_inc[7] = {8, 8, 4, 4, 2, 2, 1}; + + /* Start of interlace block in the y direction */ + static PNG_CONST png_byte png_pass_ystart[7] = {0, 0, 4, 0, 2, 0, 1}; + + /* Offset to next interlace block in the y direction */ + static PNG_CONST png_byte png_pass_yinc[7] = {8, 8, 8, 4, 4, 2, 2}; + + int max_pixel_depth; + png_size_t row_bytes; + + png_debug(1, "in png_read_start_row"); + +#ifdef PNG_READ_TRANSFORMS_SUPPORTED + png_init_read_transformations(png_ptr); +#endif + if (png_ptr->interlaced) + { + if (!(png_ptr->transformations & PNG_INTERLACE)) + png_ptr->num_rows = (png_ptr->height + png_pass_yinc[0] - 1 - + png_pass_ystart[0]) / png_pass_yinc[0]; + + else + png_ptr->num_rows = png_ptr->height; + + png_ptr->iwidth = (png_ptr->width + + png_pass_inc[png_ptr->pass] - 1 - + png_pass_start[png_ptr->pass]) / + png_pass_inc[png_ptr->pass]; + } + + else + { + png_ptr->num_rows = png_ptr->height; + png_ptr->iwidth = png_ptr->width; + } + + max_pixel_depth = png_ptr->pixel_depth; + + /* WARNING: * png_read_transform_info (pngrtran.c) performs a simpliar set of + * calculations to calculate the final pixel depth, then + * png_do_read_transforms actually does the transforms. This means that the + * code which effectively calculates this value is actually repeated in three + * separate places. They must all match. Innocent changes to the order of + * transformations can and will break libpng in a way that causes memory + * overwrites. + * + * TODO: fix this. + */ +#ifdef PNG_READ_PACK_SUPPORTED + if ((png_ptr->transformations & PNG_PACK) && png_ptr->bit_depth < 8) + max_pixel_depth = 8; +#endif + +#ifdef PNG_READ_EXPAND_SUPPORTED + if (png_ptr->transformations & PNG_EXPAND) + { + if (png_ptr->color_type == PNG_COLOR_TYPE_PALETTE) + { + if (png_ptr->num_trans) + max_pixel_depth = 32; + + else + max_pixel_depth = 24; + } + + else if (png_ptr->color_type == PNG_COLOR_TYPE_GRAY) + { + if (max_pixel_depth < 8) + max_pixel_depth = 8; + + if (png_ptr->num_trans) + max_pixel_depth *= 2; + } + + else if (png_ptr->color_type == PNG_COLOR_TYPE_RGB) + { + if (png_ptr->num_trans) + { + max_pixel_depth *= 4; + max_pixel_depth /= 3; + } + } + } +#endif + +#ifdef PNG_READ_EXPAND_16_SUPPORTED + if (png_ptr->transformations & PNG_EXPAND_16) + { +# ifdef PNG_READ_EXPAND_SUPPORTED + /* In fact it is an error if it isn't supported, but checking is + * the safe way. + */ + if (png_ptr->transformations & PNG_EXPAND) + { + if (png_ptr->bit_depth < 16) + max_pixel_depth *= 2; + } + else +# endif + png_ptr->transformations &= ~PNG_EXPAND_16; + } +#endif + +#ifdef PNG_READ_FILLER_SUPPORTED + if (png_ptr->transformations & (PNG_FILLER)) + { + if (png_ptr->color_type == PNG_COLOR_TYPE_GRAY) + { + if (max_pixel_depth <= 8) + max_pixel_depth = 16; + + else + max_pixel_depth = 32; + } + + else if (png_ptr->color_type == PNG_COLOR_TYPE_RGB || + png_ptr->color_type == PNG_COLOR_TYPE_PALETTE) + { + if (max_pixel_depth <= 32) + max_pixel_depth = 32; + + else + max_pixel_depth = 64; + } + } +#endif + +#ifdef PNG_READ_GRAY_TO_RGB_SUPPORTED + if (png_ptr->transformations & PNG_GRAY_TO_RGB) + { + if ( +#ifdef PNG_READ_EXPAND_SUPPORTED + (png_ptr->num_trans && (png_ptr->transformations & PNG_EXPAND)) || +#endif +#ifdef PNG_READ_FILLER_SUPPORTED + (png_ptr->transformations & (PNG_FILLER)) || +#endif + png_ptr->color_type == PNG_COLOR_TYPE_GRAY_ALPHA) + { + if (max_pixel_depth <= 16) + max_pixel_depth = 32; + + else + max_pixel_depth = 64; + } + + else + { + if (max_pixel_depth <= 8) + { + if (png_ptr->color_type == PNG_COLOR_TYPE_RGB_ALPHA) + max_pixel_depth = 32; + + else + max_pixel_depth = 24; + } + + else if (png_ptr->color_type == PNG_COLOR_TYPE_RGB_ALPHA) + max_pixel_depth = 64; + + else + max_pixel_depth = 48; + } + } +#endif + +#if defined(PNG_READ_USER_TRANSFORM_SUPPORTED) && \ +defined(PNG_USER_TRANSFORM_PTR_SUPPORTED) + if (png_ptr->transformations & PNG_USER_TRANSFORM) + { + int user_pixel_depth = png_ptr->user_transform_depth * + png_ptr->user_transform_channels; + + if (user_pixel_depth > max_pixel_depth) + max_pixel_depth = user_pixel_depth; + } +#endif + + /* This value is stored in png_struct and double checked in the row read + * code. + */ + png_ptr->maximum_pixel_depth = (png_byte)max_pixel_depth; + png_ptr->transformed_pixel_depth = 0; /* calculated on demand */ + + /* Align the width on the next larger 8 pixels. Mainly used + * for interlacing + */ + row_bytes = ((png_ptr->width + 7) & ~((png_uint_32)7)); + /* Calculate the maximum bytes needed, adding a byte and a pixel + * for safety's sake + */ + row_bytes = PNG_ROWBYTES(max_pixel_depth, row_bytes) + + 1 + ((max_pixel_depth + 7) >> 3); + +#ifdef PNG_MAX_MALLOC_64K + if (row_bytes > (png_uint_32)65536L) + png_error(png_ptr, "This image requires a row greater than 64KB"); +#endif + + if (row_bytes + 48 > png_ptr->old_big_row_buf_size) + { + png_free(png_ptr, png_ptr->big_row_buf); + png_free(png_ptr, png_ptr->big_prev_row); + + if (png_ptr->interlaced) + png_ptr->big_row_buf = (png_bytep)png_calloc(png_ptr, + row_bytes + 48); + + else + png_ptr->big_row_buf = (png_bytep)png_malloc(png_ptr, row_bytes + 48); + + png_ptr->big_prev_row = (png_bytep)png_malloc(png_ptr, row_bytes + 48); + +#ifdef PNG_ALIGNED_MEMORY_SUPPORTED + /* Use 16-byte aligned memory for row_buf with at least 16 bytes + * of padding before and after row_buf; treat prev_row similarly. + * NOTE: the alignment is to the start of the pixels, one beyond the start + * of the buffer, because of the filter byte. Prior to libpng 1.5.6 this + * was incorrect; the filter byte was aligned, which had the exact + * opposite effect of that intended. + */ + { + png_bytep temp = png_ptr->big_row_buf + 32; + int extra = (int)((temp - (png_bytep)0) & 0x0f); + png_ptr->row_buf = temp - extra - 1/*filter byte*/; + + temp = png_ptr->big_prev_row + 32; + extra = (int)((temp - (png_bytep)0) & 0x0f); + png_ptr->prev_row = temp - extra - 1/*filter byte*/; + } + +#else + /* Use 31 bytes of padding before and 17 bytes after row_buf. */ + png_ptr->row_buf = png_ptr->big_row_buf + 31; + png_ptr->prev_row = png_ptr->big_prev_row + 31; +#endif + png_ptr->old_big_row_buf_size = row_bytes + 48; + } + +#ifdef PNG_MAX_MALLOC_64K + if (png_ptr->rowbytes > 65535) + png_error(png_ptr, "This image requires a row greater than 64KB"); + +#endif + if (png_ptr->rowbytes > (PNG_SIZE_MAX - 1)) + png_error(png_ptr, "Row has too many bytes to allocate in memory"); + + memset(png_ptr->prev_row, 0, png_ptr->rowbytes + 1); + + png_debug1(3, "width = %u,", png_ptr->width); + png_debug1(3, "height = %u,", png_ptr->height); + png_debug1(3, "iwidth = %u,", png_ptr->iwidth); + png_debug1(3, "num_rows = %u,", png_ptr->num_rows); + png_debug1(3, "rowbytes = %lu,", (unsigned long)png_ptr->rowbytes); + png_debug1(3, "irowbytes = %lu", + (unsigned long)PNG_ROWBYTES(png_ptr->pixel_depth, png_ptr->iwidth) + 1); + + /* The sequential reader needs a buffer for IDAT, but the progressive reader + * does not, so free the read buffer now regardless; the sequential reader + * reallocates it on demand. + */ + if (png_ptr->read_buffer) + { + png_bytep buffer = png_ptr->read_buffer; + + png_ptr->read_buffer_size = 0; + png_ptr->read_buffer = NULL; + png_free(png_ptr, buffer); + } + + /* Finally claim the zstream for the inflate of the IDAT data, use the bits + * value from the stream (note that this will result in a fatal error if the + * IDAT stream has a bogus deflate header window_bits value, but this should + * not be happening any longer!) + */ + if (png_inflate_claim(png_ptr, png_IDAT) != Z_OK) + png_error(png_ptr, png_ptr->zstream.msg); + + png_ptr->flags |= PNG_FLAG_ROW_INIT; +} +#endif /* PNG_READ_SUPPORTED */ diff --git a/png/pngset.c b/png/pngset.c new file mode 100644 index 0000000..0c827d3 --- /dev/null +++ b/png/pngset.c @@ -0,0 +1,1597 @@ + +/* pngset.c - storage of image information into info struct + * + * Last changed in libpng 1.6.11 [June 12, 2014] + * Copyright (c) 1998-2014 Glenn Randers-Pehrson + * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) + * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) + * + * This code is released under the libpng license. + * For conditions of distribution and use, see the disclaimer + * and license in png.h + * + * The functions here are used during reads to store data from the file + * into the info struct, and during writes to store application data + * into the info struct for writing into the file. This abstracts the + * info struct and allows us to change the structure in the future. + */ + +#include "pngpriv.h" + +#if defined(PNG_READ_SUPPORTED) || defined(PNG_WRITE_SUPPORTED) + +#ifdef PNG_bKGD_SUPPORTED +void PNGAPI +png_set_bKGD(png_const_structrp png_ptr, png_inforp info_ptr, + png_const_color_16p background) +{ + png_debug1(1, "in %s storage function", "bKGD"); + + if (png_ptr == NULL || info_ptr == NULL || background == NULL) + return; + + info_ptr->background = *background; + info_ptr->valid |= PNG_INFO_bKGD; +} +#endif + +#ifdef PNG_cHRM_SUPPORTED +void PNGFAPI +png_set_cHRM_fixed(png_const_structrp png_ptr, png_inforp info_ptr, + png_fixed_point white_x, png_fixed_point white_y, png_fixed_point red_x, + png_fixed_point red_y, png_fixed_point green_x, png_fixed_point green_y, + png_fixed_point blue_x, png_fixed_point blue_y) +{ + png_xy xy; + + png_debug1(1, "in %s storage function", "cHRM fixed"); + + if (png_ptr == NULL || info_ptr == NULL) + return; + + xy.redx = red_x; + xy.redy = red_y; + xy.greenx = green_x; + xy.greeny = green_y; + xy.bluex = blue_x; + xy.bluey = blue_y; + xy.whitex = white_x; + xy.whitey = white_y; + + if (png_colorspace_set_chromaticities(png_ptr, &info_ptr->colorspace, &xy, + 2/* override with app values*/)) + info_ptr->colorspace.flags |= PNG_COLORSPACE_FROM_cHRM; + + png_colorspace_sync_info(png_ptr, info_ptr); +} + +void PNGFAPI +png_set_cHRM_XYZ_fixed(png_const_structrp png_ptr, png_inforp info_ptr, + png_fixed_point int_red_X, png_fixed_point int_red_Y, + png_fixed_point int_red_Z, png_fixed_point int_green_X, + png_fixed_point int_green_Y, png_fixed_point int_green_Z, + png_fixed_point int_blue_X, png_fixed_point int_blue_Y, + png_fixed_point int_blue_Z) +{ + png_XYZ XYZ; + + png_debug1(1, "in %s storage function", "cHRM XYZ fixed"); + + if (png_ptr == NULL || info_ptr == NULL) + return; + + XYZ.red_X = int_red_X; + XYZ.red_Y = int_red_Y; + XYZ.red_Z = int_red_Z; + XYZ.green_X = int_green_X; + XYZ.green_Y = int_green_Y; + XYZ.green_Z = int_green_Z; + XYZ.blue_X = int_blue_X; + XYZ.blue_Y = int_blue_Y; + XYZ.blue_Z = int_blue_Z; + + if (png_colorspace_set_endpoints(png_ptr, &info_ptr->colorspace, &XYZ, 2)) + info_ptr->colorspace.flags |= PNG_COLORSPACE_FROM_cHRM; + + png_colorspace_sync_info(png_ptr, info_ptr); +} + +# ifdef PNG_FLOATING_POINT_SUPPORTED +void PNGAPI +png_set_cHRM(png_const_structrp png_ptr, png_inforp info_ptr, + double white_x, double white_y, double red_x, double red_y, + double green_x, double green_y, double blue_x, double blue_y) +{ + png_set_cHRM_fixed(png_ptr, info_ptr, + png_fixed(png_ptr, white_x, "cHRM White X"), + png_fixed(png_ptr, white_y, "cHRM White Y"), + png_fixed(png_ptr, red_x, "cHRM Red X"), + png_fixed(png_ptr, red_y, "cHRM Red Y"), + png_fixed(png_ptr, green_x, "cHRM Green X"), + png_fixed(png_ptr, green_y, "cHRM Green Y"), + png_fixed(png_ptr, blue_x, "cHRM Blue X"), + png_fixed(png_ptr, blue_y, "cHRM Blue Y")); +} + +void PNGAPI +png_set_cHRM_XYZ(png_const_structrp png_ptr, png_inforp info_ptr, double red_X, + double red_Y, double red_Z, double green_X, double green_Y, double green_Z, + double blue_X, double blue_Y, double blue_Z) +{ + png_set_cHRM_XYZ_fixed(png_ptr, info_ptr, + png_fixed(png_ptr, red_X, "cHRM Red X"), + png_fixed(png_ptr, red_Y, "cHRM Red Y"), + png_fixed(png_ptr, red_Z, "cHRM Red Z"), + png_fixed(png_ptr, green_X, "cHRM Red X"), + png_fixed(png_ptr, green_Y, "cHRM Red Y"), + png_fixed(png_ptr, green_Z, "cHRM Red Z"), + png_fixed(png_ptr, blue_X, "cHRM Red X"), + png_fixed(png_ptr, blue_Y, "cHRM Red Y"), + png_fixed(png_ptr, blue_Z, "cHRM Red Z")); +} +# endif /* PNG_FLOATING_POINT_SUPPORTED */ + +#endif /* PNG_cHRM_SUPPORTED */ + +#ifdef PNG_gAMA_SUPPORTED +void PNGFAPI +png_set_gAMA_fixed(png_const_structrp png_ptr, png_inforp info_ptr, + png_fixed_point file_gamma) +{ + png_debug1(1, "in %s storage function", "gAMA"); + + if (png_ptr == NULL || info_ptr == NULL) + return; + + png_colorspace_set_gamma(png_ptr, &info_ptr->colorspace, file_gamma); + png_colorspace_sync_info(png_ptr, info_ptr); +} + +# ifdef PNG_FLOATING_POINT_SUPPORTED +void PNGAPI +png_set_gAMA(png_const_structrp png_ptr, png_inforp info_ptr, double file_gamma) +{ + png_set_gAMA_fixed(png_ptr, info_ptr, png_fixed(png_ptr, file_gamma, + "png_set_gAMA")); +} +# endif +#endif + +#ifdef PNG_hIST_SUPPORTED +void PNGAPI +png_set_hIST(png_const_structrp png_ptr, png_inforp info_ptr, + png_const_uint_16p hist) +{ + int i; + + png_debug1(1, "in %s storage function", "hIST"); + + if (png_ptr == NULL || info_ptr == NULL) + return; + + if (info_ptr->num_palette == 0 || info_ptr->num_palette + > PNG_MAX_PALETTE_LENGTH) + { + png_warning(png_ptr, + "Invalid palette size, hIST allocation skipped"); + + return; + } + + png_free_data(png_ptr, info_ptr, PNG_FREE_HIST, 0); + + /* Changed from info->num_palette to PNG_MAX_PALETTE_LENGTH in + * version 1.2.1 + */ + info_ptr->hist = png_voidcast(png_uint_16p, png_malloc_warn(png_ptr, + PNG_MAX_PALETTE_LENGTH * (sizeof (png_uint_16)))); + + if (info_ptr->hist == NULL) + { + png_warning(png_ptr, "Insufficient memory for hIST chunk data"); + return; + } + + info_ptr->free_me |= PNG_FREE_HIST; + + for (i = 0; i < info_ptr->num_palette; i++) + info_ptr->hist[i] = hist[i]; + + info_ptr->valid |= PNG_INFO_hIST; +} +#endif + +void PNGAPI +png_set_IHDR(png_const_structrp png_ptr, png_inforp info_ptr, + png_uint_32 width, png_uint_32 height, int bit_depth, + int color_type, int interlace_type, int compression_type, + int filter_type) +{ + png_debug1(1, "in %s storage function", "IHDR"); + + if (png_ptr == NULL || info_ptr == NULL) + return; + + info_ptr->width = width; + info_ptr->height = height; + info_ptr->bit_depth = (png_byte)bit_depth; + info_ptr->color_type = (png_byte)color_type; + info_ptr->compression_type = (png_byte)compression_type; + info_ptr->filter_type = (png_byte)filter_type; + info_ptr->interlace_type = (png_byte)interlace_type; + + png_check_IHDR (png_ptr, info_ptr->width, info_ptr->height, + info_ptr->bit_depth, info_ptr->color_type, info_ptr->interlace_type, + info_ptr->compression_type, info_ptr->filter_type); + + if (info_ptr->color_type == PNG_COLOR_TYPE_PALETTE) + info_ptr->channels = 1; + + else if (info_ptr->color_type & PNG_COLOR_MASK_COLOR) + info_ptr->channels = 3; + + else + info_ptr->channels = 1; + + if (info_ptr->color_type & PNG_COLOR_MASK_ALPHA) + info_ptr->channels++; + + info_ptr->pixel_depth = (png_byte)(info_ptr->channels * info_ptr->bit_depth); + + info_ptr->rowbytes = PNG_ROWBYTES(info_ptr->pixel_depth, width); +} + +#ifdef PNG_oFFs_SUPPORTED +void PNGAPI +png_set_oFFs(png_const_structrp png_ptr, png_inforp info_ptr, + png_int_32 offset_x, png_int_32 offset_y, int unit_type) +{ + png_debug1(1, "in %s storage function", "oFFs"); + + if (png_ptr == NULL || info_ptr == NULL) + return; + + info_ptr->x_offset = offset_x; + info_ptr->y_offset = offset_y; + info_ptr->offset_unit_type = (png_byte)unit_type; + info_ptr->valid |= PNG_INFO_oFFs; +} +#endif + +#ifdef PNG_pCAL_SUPPORTED +void PNGAPI +png_set_pCAL(png_const_structrp png_ptr, png_inforp info_ptr, + png_const_charp purpose, png_int_32 X0, png_int_32 X1, int type, + int nparams, png_const_charp units, png_charpp params) +{ + png_size_t length; + int i; + + png_debug1(1, "in %s storage function", "pCAL"); + + if (png_ptr == NULL || info_ptr == NULL || purpose == NULL || units == NULL + || (nparams > 0 && params == NULL)) + return; + + length = strlen(purpose) + 1; + png_debug1(3, "allocating purpose for info (%lu bytes)", + (unsigned long)length); + + /* TODO: validate format of calibration name and unit name */ + + /* Check that the type matches the specification. */ + if (type < 0 || type > 3) + png_error(png_ptr, "Invalid pCAL equation type"); + + if (nparams < 0 || nparams > 255) + png_error(png_ptr, "Invalid pCAL parameter count"); + + /* Validate params[nparams] */ + for (i=0; ipcal_purpose = png_voidcast(png_charp, + png_malloc_warn(png_ptr, length)); + + if (info_ptr->pcal_purpose == NULL) + { + png_warning(png_ptr, "Insufficient memory for pCAL purpose"); + return; + } + + memcpy(info_ptr->pcal_purpose, purpose, length); + + png_debug(3, "storing X0, X1, type, and nparams in info"); + info_ptr->pcal_X0 = X0; + info_ptr->pcal_X1 = X1; + info_ptr->pcal_type = (png_byte)type; + info_ptr->pcal_nparams = (png_byte)nparams; + + length = strlen(units) + 1; + png_debug1(3, "allocating units for info (%lu bytes)", + (unsigned long)length); + + info_ptr->pcal_units = png_voidcast(png_charp, + png_malloc_warn(png_ptr, length)); + + if (info_ptr->pcal_units == NULL) + { + png_warning(png_ptr, "Insufficient memory for pCAL units"); + return; + } + + memcpy(info_ptr->pcal_units, units, length); + + info_ptr->pcal_params = png_voidcast(png_charpp, png_malloc_warn(png_ptr, + (png_size_t)((nparams + 1) * (sizeof (png_charp))))); + + if (info_ptr->pcal_params == NULL) + { + png_warning(png_ptr, "Insufficient memory for pCAL params"); + return; + } + + memset(info_ptr->pcal_params, 0, (nparams + 1) * (sizeof (png_charp))); + + for (i = 0; i < nparams; i++) + { + length = strlen(params[i]) + 1; + png_debug2(3, "allocating parameter %d for info (%lu bytes)", i, + (unsigned long)length); + + info_ptr->pcal_params[i] = (png_charp)png_malloc_warn(png_ptr, length); + + if (info_ptr->pcal_params[i] == NULL) + { + png_warning(png_ptr, "Insufficient memory for pCAL parameter"); + return; + } + + memcpy(info_ptr->pcal_params[i], params[i], length); + } + + info_ptr->valid |= PNG_INFO_pCAL; + info_ptr->free_me |= PNG_FREE_PCAL; +} +#endif + +#ifdef PNG_sCAL_SUPPORTED +void PNGAPI +png_set_sCAL_s(png_const_structrp png_ptr, png_inforp info_ptr, + int unit, png_const_charp swidth, png_const_charp sheight) +{ + png_size_t lengthw = 0, lengthh = 0; + + png_debug1(1, "in %s storage function", "sCAL"); + + if (png_ptr == NULL || info_ptr == NULL) + return; + + /* Double check the unit (should never get here with an invalid + * unit unless this is an API call.) + */ + if (unit != 1 && unit != 2) + png_error(png_ptr, "Invalid sCAL unit"); + + if (swidth == NULL || (lengthw = strlen(swidth)) == 0 || + swidth[0] == 45 /* '-' */ || !png_check_fp_string(swidth, lengthw)) + png_error(png_ptr, "Invalid sCAL width"); + + if (sheight == NULL || (lengthh = strlen(sheight)) == 0 || + sheight[0] == 45 /* '-' */ || !png_check_fp_string(sheight, lengthh)) + png_error(png_ptr, "Invalid sCAL height"); + + info_ptr->scal_unit = (png_byte)unit; + + ++lengthw; + + png_debug1(3, "allocating unit for info (%u bytes)", (unsigned int)lengthw); + + info_ptr->scal_s_width = png_voidcast(png_charp, + png_malloc_warn(png_ptr, lengthw)); + + if (info_ptr->scal_s_width == NULL) + { + png_warning(png_ptr, "Memory allocation failed while processing sCAL"); + return; + } + + memcpy(info_ptr->scal_s_width, swidth, lengthw); + + ++lengthh; + + png_debug1(3, "allocating unit for info (%u bytes)", (unsigned int)lengthh); + + info_ptr->scal_s_height = png_voidcast(png_charp, + png_malloc_warn(png_ptr, lengthh)); + + if (info_ptr->scal_s_height == NULL) + { + png_free (png_ptr, info_ptr->scal_s_width); + info_ptr->scal_s_width = NULL; + + png_warning(png_ptr, "Memory allocation failed while processing sCAL"); + return; + } + + memcpy(info_ptr->scal_s_height, sheight, lengthh); + + info_ptr->valid |= PNG_INFO_sCAL; + info_ptr->free_me |= PNG_FREE_SCAL; +} + +# ifdef PNG_FLOATING_POINT_SUPPORTED +void PNGAPI +png_set_sCAL(png_const_structrp png_ptr, png_inforp info_ptr, int unit, + double width, double height) +{ + png_debug1(1, "in %s storage function", "sCAL"); + + /* Check the arguments. */ + if (width <= 0) + png_warning(png_ptr, "Invalid sCAL width ignored"); + + else if (height <= 0) + png_warning(png_ptr, "Invalid sCAL height ignored"); + + else + { + /* Convert 'width' and 'height' to ASCII. */ + char swidth[PNG_sCAL_MAX_DIGITS+1]; + char sheight[PNG_sCAL_MAX_DIGITS+1]; + + png_ascii_from_fp(png_ptr, swidth, (sizeof swidth), width, + PNG_sCAL_PRECISION); + png_ascii_from_fp(png_ptr, sheight, (sizeof sheight), height, + PNG_sCAL_PRECISION); + + png_set_sCAL_s(png_ptr, info_ptr, unit, swidth, sheight); + } +} +# endif + +# ifdef PNG_FIXED_POINT_SUPPORTED +void PNGAPI +png_set_sCAL_fixed(png_const_structrp png_ptr, png_inforp info_ptr, int unit, + png_fixed_point width, png_fixed_point height) +{ + png_debug1(1, "in %s storage function", "sCAL"); + + /* Check the arguments. */ + if (width <= 0) + png_warning(png_ptr, "Invalid sCAL width ignored"); + + else if (height <= 0) + png_warning(png_ptr, "Invalid sCAL height ignored"); + + else + { + /* Convert 'width' and 'height' to ASCII. */ + char swidth[PNG_sCAL_MAX_DIGITS+1]; + char sheight[PNG_sCAL_MAX_DIGITS+1]; + + png_ascii_from_fixed(png_ptr, swidth, (sizeof swidth), width); + png_ascii_from_fixed(png_ptr, sheight, (sizeof sheight), height); + + png_set_sCAL_s(png_ptr, info_ptr, unit, swidth, sheight); + } +} +# endif +#endif + +#ifdef PNG_pHYs_SUPPORTED +void PNGAPI +png_set_pHYs(png_const_structrp png_ptr, png_inforp info_ptr, + png_uint_32 res_x, png_uint_32 res_y, int unit_type) +{ + png_debug1(1, "in %s storage function", "pHYs"); + + if (png_ptr == NULL || info_ptr == NULL) + return; + + info_ptr->x_pixels_per_unit = res_x; + info_ptr->y_pixels_per_unit = res_y; + info_ptr->phys_unit_type = (png_byte)unit_type; + info_ptr->valid |= PNG_INFO_pHYs; +} +#endif + +void PNGAPI +png_set_PLTE(png_structrp png_ptr, png_inforp info_ptr, + png_const_colorp palette, int num_palette) +{ + + png_debug1(1, "in %s storage function", "PLTE"); + + if (png_ptr == NULL || info_ptr == NULL) + return; + + if (num_palette < 0 || num_palette > PNG_MAX_PALETTE_LENGTH) + { + if (info_ptr->color_type == PNG_COLOR_TYPE_PALETTE) + png_error(png_ptr, "Invalid palette length"); + + else + { + png_warning(png_ptr, "Invalid palette length"); + return; + } + } + + if ((num_palette > 0 && palette == NULL) || + (num_palette == 0 +# ifdef PNG_MNG_FEATURES_SUPPORTED + && (png_ptr->mng_features_permitted & PNG_FLAG_MNG_EMPTY_PLTE) == 0 +# endif + )) + { + png_error(png_ptr, "Invalid palette"); + return; + } + + /* It may not actually be necessary to set png_ptr->palette here; + * we do it for backward compatibility with the way the png_handle_tRNS + * function used to do the allocation. + * + * 1.6.0: the above statement appears to be incorrect; something has to set + * the palette inside png_struct on read. + */ + png_free_data(png_ptr, info_ptr, PNG_FREE_PLTE, 0); + + /* Changed in libpng-1.2.1 to allocate PNG_MAX_PALETTE_LENGTH instead + * of num_palette entries, in case of an invalid PNG file that has + * too-large sample values. + */ + png_ptr->palette = png_voidcast(png_colorp, png_calloc(png_ptr, + PNG_MAX_PALETTE_LENGTH * (sizeof (png_color)))); + + if (num_palette > 0) + memcpy(png_ptr->palette, palette, num_palette * (sizeof (png_color))); + info_ptr->palette = png_ptr->palette; + info_ptr->num_palette = png_ptr->num_palette = (png_uint_16)num_palette; + + info_ptr->free_me |= PNG_FREE_PLTE; + + info_ptr->valid |= PNG_INFO_PLTE; +} + +#ifdef PNG_sBIT_SUPPORTED +void PNGAPI +png_set_sBIT(png_const_structrp png_ptr, png_inforp info_ptr, + png_const_color_8p sig_bit) +{ + png_debug1(1, "in %s storage function", "sBIT"); + + if (png_ptr == NULL || info_ptr == NULL || sig_bit == NULL) + return; + + info_ptr->sig_bit = *sig_bit; + info_ptr->valid |= PNG_INFO_sBIT; +} +#endif + +#ifdef PNG_sRGB_SUPPORTED +void PNGAPI +png_set_sRGB(png_const_structrp png_ptr, png_inforp info_ptr, int srgb_intent) +{ + png_debug1(1, "in %s storage function", "sRGB"); + + if (png_ptr == NULL || info_ptr == NULL) + return; + + (void)png_colorspace_set_sRGB(png_ptr, &info_ptr->colorspace, srgb_intent); + png_colorspace_sync_info(png_ptr, info_ptr); +} + +void PNGAPI +png_set_sRGB_gAMA_and_cHRM(png_const_structrp png_ptr, png_inforp info_ptr, + int srgb_intent) +{ + png_debug1(1, "in %s storage function", "sRGB_gAMA_and_cHRM"); + + if (png_ptr == NULL || info_ptr == NULL) + return; + + if (png_colorspace_set_sRGB(png_ptr, &info_ptr->colorspace, srgb_intent)) + { + /* This causes the gAMA and cHRM to be written too */ + info_ptr->colorspace.flags |= + PNG_COLORSPACE_FROM_gAMA|PNG_COLORSPACE_FROM_cHRM; + } + + png_colorspace_sync_info(png_ptr, info_ptr); +} +#endif /* sRGB */ + + +#ifdef PNG_iCCP_SUPPORTED +void PNGAPI +png_set_iCCP(png_const_structrp png_ptr, png_inforp info_ptr, + png_const_charp name, int compression_type, + png_const_bytep profile, png_uint_32 proflen) +{ + png_charp new_iccp_name; + png_bytep new_iccp_profile; + png_size_t length; + + png_debug1(1, "in %s storage function", "iCCP"); + + if (png_ptr == NULL || info_ptr == NULL || name == NULL || profile == NULL) + return; + + if (compression_type != PNG_COMPRESSION_TYPE_BASE) + png_app_error(png_ptr, "Invalid iCCP compression method"); + + /* Set the colorspace first because this validates the profile; do not + * override previously set app cHRM or gAMA here (because likely as not the + * application knows better than libpng what the correct values are.) Pass + * the info_ptr color_type field to png_colorspace_set_ICC because in the + * write case it has not yet been stored in png_ptr. + */ + { + int result = png_colorspace_set_ICC(png_ptr, &info_ptr->colorspace, name, + proflen, profile, info_ptr->color_type); + + png_colorspace_sync_info(png_ptr, info_ptr); + + /* Don't do any of the copying if the profile was bad, or inconsistent. */ + if (result == 0) + return; + + /* But do write the gAMA and cHRM chunks from the profile. */ + info_ptr->colorspace.flags |= + PNG_COLORSPACE_FROM_gAMA|PNG_COLORSPACE_FROM_cHRM; + } + + length = strlen(name)+1; + new_iccp_name = png_voidcast(png_charp, png_malloc_warn(png_ptr, length)); + + if (new_iccp_name == NULL) + { + png_benign_error(png_ptr, "Insufficient memory to process iCCP chunk"); + return; + } + + memcpy(new_iccp_name, name, length); + new_iccp_profile = png_voidcast(png_bytep, + png_malloc_warn(png_ptr, proflen)); + + if (new_iccp_profile == NULL) + { + png_free(png_ptr, new_iccp_name); + png_benign_error(png_ptr, + "Insufficient memory to process iCCP profile"); + return; + } + + memcpy(new_iccp_profile, profile, proflen); + + png_free_data(png_ptr, info_ptr, PNG_FREE_ICCP, 0); + + info_ptr->iccp_proflen = proflen; + info_ptr->iccp_name = new_iccp_name; + info_ptr->iccp_profile = new_iccp_profile; + info_ptr->free_me |= PNG_FREE_ICCP; + info_ptr->valid |= PNG_INFO_iCCP; +} +#endif + +#ifdef PNG_TEXT_SUPPORTED +void PNGAPI +png_set_text(png_const_structrp png_ptr, png_inforp info_ptr, + png_const_textp text_ptr, int num_text) +{ + int ret; + ret = png_set_text_2(png_ptr, info_ptr, text_ptr, num_text); + + if (ret != 0) + png_error(png_ptr, "Insufficient memory to store text"); +} + +int /* PRIVATE */ +png_set_text_2(png_const_structrp png_ptr, png_inforp info_ptr, + png_const_textp text_ptr, int num_text) +{ + int i; + + png_debug1(1, "in %lx storage function", png_ptr == NULL ? "unexpected" : + (unsigned long)png_ptr->chunk_name); + + if (png_ptr == NULL || info_ptr == NULL || num_text <= 0 || text_ptr == NULL) + return(0); + + /* Make sure we have enough space in the "text" array in info_struct + * to hold all of the incoming text_ptr objects. This compare can't overflow + * because max_text >= num_text (anyway, subtract of two positive integers + * can't overflow in any case.) + */ + if (num_text > info_ptr->max_text - info_ptr->num_text) + { + int old_num_text = info_ptr->num_text; + int max_text; + png_textp new_text = NULL; + + /* Calculate an appropriate max_text, checking for overflow. */ + max_text = old_num_text; + if (num_text <= INT_MAX - max_text) + { + max_text += num_text; + + /* Round up to a multiple of 8 */ + if (max_text < INT_MAX-8) + max_text = (max_text + 8) & ~0x7; + + else + max_text = INT_MAX; + + /* Now allocate a new array and copy the old members in, this does all + * the overflow checks. + */ + new_text = png_voidcast(png_textp,png_realloc_array(png_ptr, + info_ptr->text, old_num_text, max_text-old_num_text, + sizeof *new_text)); + } + + if (new_text == NULL) + { + png_chunk_report(png_ptr, "too many text chunks", + PNG_CHUNK_WRITE_ERROR); + return 1; + } + + png_free(png_ptr, info_ptr->text); + + info_ptr->text = new_text; + info_ptr->free_me |= PNG_FREE_TEXT; + info_ptr->max_text = max_text; + /* num_text is adjusted below as the entries are copied in */ + + png_debug1(3, "allocated %d entries for info_ptr->text", max_text); + } + + for (i = 0; i < num_text; i++) + { + size_t text_length, key_len; + size_t lang_len, lang_key_len; + png_textp textp = &(info_ptr->text[info_ptr->num_text]); + + if (text_ptr[i].key == NULL) + continue; + + if (text_ptr[i].compression < PNG_TEXT_COMPRESSION_NONE || + text_ptr[i].compression >= PNG_TEXT_COMPRESSION_LAST) + { + png_chunk_report(png_ptr, "text compression mode is out of range", + PNG_CHUNK_WRITE_ERROR); + continue; + } + + key_len = strlen(text_ptr[i].key); + + if (text_ptr[i].compression <= 0) + { + lang_len = 0; + lang_key_len = 0; + } + + else +# ifdef PNG_iTXt_SUPPORTED + { + /* Set iTXt data */ + + if (text_ptr[i].lang != NULL) + lang_len = strlen(text_ptr[i].lang); + + else + lang_len = 0; + + if (text_ptr[i].lang_key != NULL) + lang_key_len = strlen(text_ptr[i].lang_key); + + else + lang_key_len = 0; + } +# else /* PNG_iTXt_SUPPORTED */ + { + png_chunk_report(png_ptr, "iTXt chunk not supported", + PNG_CHUNK_WRITE_ERROR); + continue; + } +# endif + + if (text_ptr[i].text == NULL || text_ptr[i].text[0] == '\0') + { + text_length = 0; +# ifdef PNG_iTXt_SUPPORTED + if (text_ptr[i].compression > 0) + textp->compression = PNG_ITXT_COMPRESSION_NONE; + + else +# endif + textp->compression = PNG_TEXT_COMPRESSION_NONE; + } + + else + { + text_length = strlen(text_ptr[i].text); + textp->compression = text_ptr[i].compression; + } + + textp->key = png_voidcast(png_charp,png_malloc_base(png_ptr, + key_len + text_length + lang_len + lang_key_len + 4)); + + if (textp->key == NULL) + { + png_chunk_report(png_ptr, "text chunk: out of memory", + PNG_CHUNK_WRITE_ERROR); + return 1; + } + + png_debug2(2, "Allocated %lu bytes at %p in png_set_text", + (unsigned long)(png_uint_32) + (key_len + lang_len + lang_key_len + text_length + 4), + textp->key); + + memcpy(textp->key, text_ptr[i].key, key_len); + *(textp->key + key_len) = '\0'; + + if (text_ptr[i].compression > 0) + { + textp->lang = textp->key + key_len + 1; + memcpy(textp->lang, text_ptr[i].lang, lang_len); + *(textp->lang + lang_len) = '\0'; + textp->lang_key = textp->lang + lang_len + 1; + memcpy(textp->lang_key, text_ptr[i].lang_key, lang_key_len); + *(textp->lang_key + lang_key_len) = '\0'; + textp->text = textp->lang_key + lang_key_len + 1; + } + + else + { + textp->lang=NULL; + textp->lang_key=NULL; + textp->text = textp->key + key_len + 1; + } + + if (text_length != 0) + memcpy(textp->text, text_ptr[i].text, text_length); + + *(textp->text + text_length) = '\0'; + +# ifdef PNG_iTXt_SUPPORTED + if (textp->compression > 0) + { + textp->text_length = 0; + textp->itxt_length = text_length; + } + + else +# endif + { + textp->text_length = text_length; + textp->itxt_length = 0; + } + + info_ptr->num_text++; + png_debug1(3, "transferred text chunk %d", info_ptr->num_text); + } + + return(0); +} +#endif + +#ifdef PNG_tIME_SUPPORTED +void PNGAPI +png_set_tIME(png_const_structrp png_ptr, png_inforp info_ptr, + png_const_timep mod_time) +{ + png_debug1(1, "in %s storage function", "tIME"); + + if (png_ptr == NULL || info_ptr == NULL || mod_time == NULL || + (png_ptr->mode & PNG_WROTE_tIME)) + return; + + if (mod_time->month == 0 || mod_time->month > 12 || + mod_time->day == 0 || mod_time->day > 31 || + mod_time->hour > 23 || mod_time->minute > 59 || + mod_time->second > 60) + { + png_warning(png_ptr, "Ignoring invalid time value"); + return; + } + + info_ptr->mod_time = *mod_time; + info_ptr->valid |= PNG_INFO_tIME; +} +#endif + +#ifdef PNG_tRNS_SUPPORTED +void PNGAPI +png_set_tRNS(png_structrp png_ptr, png_inforp info_ptr, + png_const_bytep trans_alpha, int num_trans, png_const_color_16p trans_color) +{ + png_debug1(1, "in %s storage function", "tRNS"); + + if (png_ptr == NULL || info_ptr == NULL) + return; + + if (trans_alpha != NULL) + { + /* It may not actually be necessary to set png_ptr->trans_alpha here; + * we do it for backward compatibility with the way the png_handle_tRNS + * function used to do the allocation. + * + * 1.6.0: The above statement is incorrect; png_handle_tRNS effectively + * relies on png_set_tRNS storing the information in png_struct + * (otherwise it won't be there for the code in pngrtran.c). + */ + + png_free_data(png_ptr, info_ptr, PNG_FREE_TRNS, 0); + + /* Changed from num_trans to PNG_MAX_PALETTE_LENGTH in version 1.2.1 */ + png_ptr->trans_alpha = info_ptr->trans_alpha = png_voidcast(png_bytep, + png_malloc(png_ptr, PNG_MAX_PALETTE_LENGTH)); + + if (num_trans > 0 && num_trans <= PNG_MAX_PALETTE_LENGTH) + memcpy(info_ptr->trans_alpha, trans_alpha, (png_size_t)num_trans); + } + + if (trans_color != NULL) + { + int sample_max = (1 << info_ptr->bit_depth); + + if ((info_ptr->color_type == PNG_COLOR_TYPE_GRAY && + trans_color->gray > sample_max) || + (info_ptr->color_type == PNG_COLOR_TYPE_RGB && + (trans_color->red > sample_max || + trans_color->green > sample_max || + trans_color->blue > sample_max))) + png_warning(png_ptr, + "tRNS chunk has out-of-range samples for bit_depth"); + + info_ptr->trans_color = *trans_color; + + if (num_trans == 0) + num_trans = 1; + } + + info_ptr->num_trans = (png_uint_16)num_trans; + + if (num_trans != 0) + { + info_ptr->valid |= PNG_INFO_tRNS; + info_ptr->free_me |= PNG_FREE_TRNS; + } +} +#endif + +#ifdef PNG_sPLT_SUPPORTED +void PNGAPI +png_set_sPLT(png_const_structrp png_ptr, + png_inforp info_ptr, png_const_sPLT_tp entries, int nentries) +/* + * entries - array of png_sPLT_t structures + * to be added to the list of palettes + * in the info structure. + * + * nentries - number of palette structures to be + * added. + */ +{ + png_sPLT_tp np; + + if (png_ptr == NULL || info_ptr == NULL || nentries <= 0 || entries == NULL) + return; + + /* Use the internal realloc function, which checks for all the possible + * overflows. Notice that the parameters are (int) and (size_t) + */ + np = png_voidcast(png_sPLT_tp,png_realloc_array(png_ptr, + info_ptr->splt_palettes, info_ptr->splt_palettes_num, nentries, + sizeof *np)); + + if (np == NULL) + { + /* Out of memory or too many chunks */ + png_chunk_report(png_ptr, "too many sPLT chunks", PNG_CHUNK_WRITE_ERROR); + return; + } + + png_free(png_ptr, info_ptr->splt_palettes); + info_ptr->splt_palettes = np; + info_ptr->free_me |= PNG_FREE_SPLT; + + np += info_ptr->splt_palettes_num; + + do + { + png_size_t length; + + /* Skip invalid input entries */ + if (entries->name == NULL || entries->entries == NULL) + { + /* png_handle_sPLT doesn't do this, so this is an app error */ + png_app_error(png_ptr, "png_set_sPLT: invalid sPLT"); + /* Just skip the invalid entry */ + continue; + } + + np->depth = entries->depth; + + /* In the even of out-of-memory just return - there's no point keeping on + * trying to add sPLT chunks. + */ + length = strlen(entries->name) + 1; + np->name = png_voidcast(png_charp, png_malloc_base(png_ptr, length)); + + if (np->name == NULL) + break; + + memcpy(np->name, entries->name, length); + + /* IMPORTANT: we have memory now that won't get freed if something else + * goes wrong, this code must free it. png_malloc_array produces no + * warnings, use a png_chunk_report (below) if there is an error. + */ + np->entries = png_voidcast(png_sPLT_entryp, png_malloc_array(png_ptr, + entries->nentries, sizeof (png_sPLT_entry))); + + if (np->entries == NULL) + { + png_free(png_ptr, np->name); + break; + } + + np->nentries = entries->nentries; + /* This multiply can't overflow because png_malloc_array has already + * checked it when doing the allocation. + */ + memcpy(np->entries, entries->entries, + entries->nentries * sizeof (png_sPLT_entry)); + + /* Note that 'continue' skips the advance of the out pointer and out + * count, so an invalid entry is not added. + */ + info_ptr->valid |= PNG_INFO_sPLT; + ++(info_ptr->splt_palettes_num); + ++np; + } + while (++entries, --nentries); + + if (nentries > 0) + png_chunk_report(png_ptr, "sPLT out of memory", PNG_CHUNK_WRITE_ERROR); +} +#endif /* PNG_sPLT_SUPPORTED */ + +#ifdef PNG_STORE_UNKNOWN_CHUNKS_SUPPORTED +static png_byte +check_location(png_const_structrp png_ptr, int location) +{ + location &= (PNG_HAVE_IHDR|PNG_HAVE_PLTE|PNG_AFTER_IDAT); + + /* New in 1.6.0; copy the location and check it. This is an API + * change, previously the app had to use the + * png_set_unknown_chunk_location API below for each chunk. + */ + if (location == 0 && !(png_ptr->mode & PNG_IS_READ_STRUCT)) + { + /* Write struct, so unknown chunks come from the app */ + png_app_warning(png_ptr, + "png_set_unknown_chunks now expects a valid location"); + /* Use the old behavior */ + location = (png_byte)(png_ptr->mode & + (PNG_HAVE_IHDR|PNG_HAVE_PLTE|PNG_AFTER_IDAT)); + } + + /* This need not be an internal error - if the app calls + * png_set_unknown_chunks on a read pointer it must get the location right. + */ + if (location == 0) + png_error(png_ptr, "invalid location in png_set_unknown_chunks"); + + /* Now reduce the location to the top-most set bit by removing each least + * significant bit in turn. + */ + while (location != (location & -location)) + location &= ~(location & -location); + + /* The cast is safe because 'location' is a bit mask and only the low four + * bits are significant. + */ + return (png_byte)location; +} + +void PNGAPI +png_set_unknown_chunks(png_const_structrp png_ptr, + png_inforp info_ptr, png_const_unknown_chunkp unknowns, int num_unknowns) +{ + png_unknown_chunkp np; + + if (png_ptr == NULL || info_ptr == NULL || num_unknowns <= 0 || + unknowns == NULL) + return; + + /* Check for the failure cases where support has been disabled at compile + * time. This code is hardly ever compiled - it's here because + * STORE_UNKNOWN_CHUNKS is set by both read and write code (compiling in this + * code) but may be meaningless if the read or write handling of unknown + * chunks is not compiled in. + */ +# if !defined(PNG_READ_UNKNOWN_CHUNKS_SUPPORTED) && \ + defined(PNG_READ_SUPPORTED) + if (png_ptr->mode & PNG_IS_READ_STRUCT) + { + png_app_error(png_ptr, "no unknown chunk support on read"); + return; + } +# endif +# if !defined(PNG_WRITE_UNKNOWN_CHUNKS_SUPPORTED) && \ + defined(PNG_WRITE_SUPPORTED) + if (!(png_ptr->mode & PNG_IS_READ_STRUCT)) + { + png_app_error(png_ptr, "no unknown chunk support on write"); + return; + } +# endif + + /* Prior to 1.6.0 this code used png_malloc_warn; however, this meant that + * unknown critical chunks could be lost with just a warning resulting in + * undefined behavior. Now png_chunk_report is used to provide behavior + * appropriate to read or write. + */ + np = png_voidcast(png_unknown_chunkp, png_realloc_array(png_ptr, + info_ptr->unknown_chunks, info_ptr->unknown_chunks_num, num_unknowns, + sizeof *np)); + + if (np == NULL) + { + png_chunk_report(png_ptr, "too many unknown chunks", + PNG_CHUNK_WRITE_ERROR); + return; + } + + png_free(png_ptr, info_ptr->unknown_chunks); + info_ptr->unknown_chunks = np; /* safe because it is initialized */ + info_ptr->free_me |= PNG_FREE_UNKN; + + np += info_ptr->unknown_chunks_num; + + /* Increment unknown_chunks_num each time round the loop to protect the + * just-allocated chunk data. + */ + for (; num_unknowns > 0; --num_unknowns, ++unknowns) + { + memcpy(np->name, unknowns->name, (sizeof np->name)); + np->name[(sizeof np->name)-1] = '\0'; + np->location = check_location(png_ptr, unknowns->location); + + if (unknowns->size == 0) + { + np->data = NULL; + np->size = 0; + } + + else + { + np->data = png_voidcast(png_bytep, + png_malloc_base(png_ptr, unknowns->size)); + + if (np->data == NULL) + { + png_chunk_report(png_ptr, "unknown chunk: out of memory", + PNG_CHUNK_WRITE_ERROR); + /* But just skip storing the unknown chunk */ + continue; + } + + memcpy(np->data, unknowns->data, unknowns->size); + np->size = unknowns->size; + } + + /* These increments are skipped on out-of-memory for the data - the + * unknown chunk entry gets overwritten if the png_chunk_report returns. + * This is correct in the read case (the chunk is just dropped.) + */ + ++np; + ++(info_ptr->unknown_chunks_num); + } +} + +void PNGAPI +png_set_unknown_chunk_location(png_const_structrp png_ptr, png_inforp info_ptr, + int chunk, int location) +{ + /* This API is pretty pointless in 1.6.0 because the location can be set + * before the call to png_set_unknown_chunks. + * + * TODO: add a png_app_warning in 1.7 + */ + if (png_ptr != NULL && info_ptr != NULL && chunk >= 0 && + chunk < info_ptr->unknown_chunks_num) + { + if ((location & (PNG_HAVE_IHDR|PNG_HAVE_PLTE|PNG_AFTER_IDAT)) == 0) + { + png_app_error(png_ptr, "invalid unknown chunk location"); + /* Fake out the pre 1.6.0 behavior: */ + if ((location & PNG_HAVE_IDAT)) /* undocumented! */ + location = PNG_AFTER_IDAT; + + else + location = PNG_HAVE_IHDR; /* also undocumented */ + } + + info_ptr->unknown_chunks[chunk].location = + check_location(png_ptr, location); + } +} +#endif + + +#ifdef PNG_MNG_FEATURES_SUPPORTED +png_uint_32 PNGAPI +png_permit_mng_features (png_structrp png_ptr, png_uint_32 mng_features) +{ + png_debug(1, "in png_permit_mng_features"); + + if (png_ptr == NULL) + return 0; + + png_ptr->mng_features_permitted = mng_features & PNG_ALL_MNG_FEATURES; + + return png_ptr->mng_features_permitted; +} +#endif + +#ifdef PNG_HANDLE_AS_UNKNOWN_SUPPORTED +static unsigned int +add_one_chunk(png_bytep list, unsigned int count, png_const_bytep add, int keep) +{ + unsigned int i; + + /* Utility function: update the 'keep' state of a chunk if it is already in + * the list, otherwise add it to the list. + */ + for (i=0; i= PNG_HANDLE_CHUNK_LAST) + { + png_app_error(png_ptr, "png_set_keep_unknown_chunks: invalid keep"); + return; + } + + if (num_chunks_in <= 0) + { + png_ptr->unknown_default = keep; + + /* '0' means just set the flags, so stop here */ + if (num_chunks_in == 0) + return; + } + + if (num_chunks_in < 0) + { + /* Ignore all unknown chunks and all chunks recognized by + * libpng except for IHDR, PLTE, tRNS, IDAT, and IEND + */ + static PNG_CONST png_byte chunks_to_ignore[] = { + 98, 75, 71, 68, '\0', /* bKGD */ + 99, 72, 82, 77, '\0', /* cHRM */ + 103, 65, 77, 65, '\0', /* gAMA */ + 104, 73, 83, 84, '\0', /* hIST */ + 105, 67, 67, 80, '\0', /* iCCP */ + 105, 84, 88, 116, '\0', /* iTXt */ + 111, 70, 70, 115, '\0', /* oFFs */ + 112, 67, 65, 76, '\0', /* pCAL */ + 112, 72, 89, 115, '\0', /* pHYs */ + 115, 66, 73, 84, '\0', /* sBIT */ + 115, 67, 65, 76, '\0', /* sCAL */ + 115, 80, 76, 84, '\0', /* sPLT */ + 115, 84, 69, 82, '\0', /* sTER */ + 115, 82, 71, 66, '\0', /* sRGB */ + 116, 69, 88, 116, '\0', /* tEXt */ + 116, 73, 77, 69, '\0', /* tIME */ + 122, 84, 88, 116, '\0' /* zTXt */ + }; + + chunk_list = chunks_to_ignore; + num_chunks = (sizeof chunks_to_ignore)/5; + } + + else /* num_chunks_in > 0 */ + { + if (chunk_list == NULL) + { + /* Prior to 1.6.0 this was silently ignored, now it is an app_error + * which can be switched off. + */ + png_app_error(png_ptr, "png_set_keep_unknown_chunks: no chunk list"); + return; + } + + num_chunks = num_chunks_in; + } + + old_num_chunks = png_ptr->num_chunk_list; + if (png_ptr->chunk_list == NULL) + old_num_chunks = 0; + + /* Since num_chunks is always restricted to UINT_MAX/5 this can't overflow. + */ + if (num_chunks + old_num_chunks > UINT_MAX/5) + { + png_app_error(png_ptr, "png_set_keep_unknown_chunks: too many chunks"); + return; + } + + /* If these chunks are being reset to the default then no more memory is + * required because add_one_chunk above doesn't extend the list if the 'keep' + * parameter is the default. + */ + if (keep != 0) + { + new_list = png_voidcast(png_bytep, png_malloc(png_ptr, + 5 * (num_chunks + old_num_chunks))); + + if (old_num_chunks > 0) + memcpy(new_list, png_ptr->chunk_list, 5*old_num_chunks); + } + + else if (old_num_chunks > 0) + new_list = png_ptr->chunk_list; + + else + new_list = NULL; + + /* Add the new chunks together with each one's handling code. If the chunk + * already exists the code is updated, otherwise the chunk is added to the + * end. (In libpng 1.6.0 order no longer matters because this code enforces + * the earlier convention that the last setting is the one that is used.) + */ + if (new_list != NULL) + { + png_const_bytep inlist; + png_bytep outlist; + unsigned int i; + + for (i=0; ichunk_list != new_list) + png_free(png_ptr, new_list); + + new_list = NULL; + } + } + + else + num_chunks = 0; + + png_ptr->num_chunk_list = num_chunks; + + if (png_ptr->chunk_list != new_list) + { + if (png_ptr->chunk_list != NULL) + png_free(png_ptr, png_ptr->chunk_list); + + png_ptr->chunk_list = new_list; + } +} +#endif + +#ifdef PNG_READ_USER_CHUNKS_SUPPORTED +void PNGAPI +png_set_read_user_chunk_fn(png_structrp png_ptr, png_voidp user_chunk_ptr, + png_user_chunk_ptr read_user_chunk_fn) +{ + png_debug(1, "in png_set_read_user_chunk_fn"); + + if (png_ptr == NULL) + return; + + png_ptr->read_user_chunk_fn = read_user_chunk_fn; + png_ptr->user_chunk_ptr = user_chunk_ptr; +} +#endif + +#ifdef PNG_INFO_IMAGE_SUPPORTED +void PNGAPI +png_set_rows(png_const_structrp png_ptr, png_inforp info_ptr, + png_bytepp row_pointers) +{ + png_debug1(1, "in %s storage function", "rows"); + + if (png_ptr == NULL || info_ptr == NULL) + return; + + if (info_ptr->row_pointers && (info_ptr->row_pointers != row_pointers)) + png_free_data(png_ptr, info_ptr, PNG_FREE_ROWS, 0); + + info_ptr->row_pointers = row_pointers; + + if (row_pointers != NULL) + info_ptr->valid |= PNG_INFO_IDAT; +} +#endif + +void PNGAPI +png_set_compression_buffer_size(png_structrp png_ptr, png_size_t size) +{ + if (png_ptr == NULL) + return; + + if (size == 0 || size > PNG_UINT_31_MAX) + png_error(png_ptr, "invalid compression buffer size"); + +# ifdef PNG_SEQUENTIAL_READ_SUPPORTED + if (png_ptr->mode & PNG_IS_READ_STRUCT) + { + png_ptr->IDAT_read_size = (png_uint_32)size; /* checked above */ + return; + } +# endif + +# ifdef PNG_WRITE_SUPPORTED + if (!(png_ptr->mode & PNG_IS_READ_STRUCT)) + { + if (png_ptr->zowner != 0) + { + png_warning(png_ptr, + "Compression buffer size cannot be changed because it is in use"); + return; + } + + if (size > ZLIB_IO_MAX) + { + png_warning(png_ptr, + "Compression buffer size limited to system maximum"); + size = ZLIB_IO_MAX; /* must fit */ + } + + else if (size < 6) + { + /* Deflate will potentially go into an infinite loop on a SYNC_FLUSH + * if this is permitted. + */ + png_warning(png_ptr, + "Compression buffer size cannot be reduced below 6"); + return; + } + + if (png_ptr->zbuffer_size != size) + { + png_free_buffer_list(png_ptr, &png_ptr->zbuffer_list); + png_ptr->zbuffer_size = (uInt)size; + } + } +# endif +} + +void PNGAPI +png_set_invalid(png_const_structrp png_ptr, png_inforp info_ptr, int mask) +{ + if (png_ptr && info_ptr) + info_ptr->valid &= ~mask; +} + + +#ifdef PNG_SET_USER_LIMITS_SUPPORTED +/* This function was added to libpng 1.2.6 */ +void PNGAPI +png_set_user_limits (png_structrp png_ptr, png_uint_32 user_width_max, + png_uint_32 user_height_max) +{ + /* Images with dimensions larger than these limits will be + * rejected by png_set_IHDR(). To accept any PNG datastream + * regardless of dimensions, set both limits to 0x7ffffffL. + */ + if (png_ptr == NULL) + return; + + png_ptr->user_width_max = user_width_max; + png_ptr->user_height_max = user_height_max; +} + +/* This function was added to libpng 1.4.0 */ +void PNGAPI +png_set_chunk_cache_max (png_structrp png_ptr, png_uint_32 user_chunk_cache_max) +{ + if (png_ptr != NULL) + png_ptr->user_chunk_cache_max = user_chunk_cache_max; +} + +/* This function was added to libpng 1.4.1 */ +void PNGAPI +png_set_chunk_malloc_max (png_structrp png_ptr, + png_alloc_size_t user_chunk_malloc_max) +{ + if (png_ptr != NULL) + png_ptr->user_chunk_malloc_max = user_chunk_malloc_max; +} +#endif /* ?PNG_SET_USER_LIMITS_SUPPORTED */ + + +#ifdef PNG_BENIGN_ERRORS_SUPPORTED +void PNGAPI +png_set_benign_errors(png_structrp png_ptr, int allowed) +{ + png_debug(1, "in png_set_benign_errors"); + + /* If allowed is 1, png_benign_error() is treated as a warning. + * + * If allowed is 0, png_benign_error() is treated as an error (which + * is the default behavior if png_set_benign_errors() is not called). + */ + + if (allowed != 0) + png_ptr->flags |= PNG_FLAG_BENIGN_ERRORS_WARN | + PNG_FLAG_APP_WARNINGS_WARN | PNG_FLAG_APP_ERRORS_WARN; + + else + png_ptr->flags &= ~(PNG_FLAG_BENIGN_ERRORS_WARN | + PNG_FLAG_APP_WARNINGS_WARN | PNG_FLAG_APP_ERRORS_WARN); +} +#endif /* PNG_BENIGN_ERRORS_SUPPORTED */ + +#ifdef PNG_CHECK_FOR_INVALID_INDEX_SUPPORTED + /* Whether to report invalid palette index; added at libng-1.5.10. + * It is possible for an indexed (color-type==3) PNG file to contain + * pixels with invalid (out-of-range) indexes if the PLTE chunk has + * fewer entries than the image's bit-depth would allow. We recover + * from this gracefully by filling any incomplete palette with zeroes + * (opaque black). By default, when this occurs libpng will issue + * a benign error. This API can be used to override that behavior. + */ +void PNGAPI +png_set_check_for_invalid_index(png_structrp png_ptr, int allowed) +{ + png_debug(1, "in png_set_check_for_invalid_index"); + + if (allowed > 0) + png_ptr->num_palette_max = 0; + + else + png_ptr->num_palette_max = -1; +} +#endif +#endif /* PNG_READ_SUPPORTED || PNG_WRITE_SUPPORTED */ diff --git a/png/pngstruct.h b/png/pngstruct.h new file mode 100644 index 0000000..d58c028 --- /dev/null +++ b/png/pngstruct.h @@ -0,0 +1,489 @@ + +/* pngstruct.h - header file for PNG reference library + * + * Copyright (c) 1998-2013 Glenn Randers-Pehrson + * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) + * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) + * + * Last changed in libpng 1.6.1 [March 28, 2013] + * + * This code is released under the libpng license. + * For conditions of distribution and use, see the disclaimer + * and license in png.h + */ + +/* The structure that holds the information to read and write PNG files. + * The only people who need to care about what is inside of this are the + * people who will be modifying the library for their own special needs. + * It should NOT be accessed directly by an application. + */ + +#ifndef PNGSTRUCT_H +#define PNGSTRUCT_H +/* zlib.h defines the structure z_stream, an instance of which is included + * in this structure and is required for decompressing the LZ compressed + * data in PNG files. + */ +#ifndef ZLIB_CONST + /* We must ensure that zlib uses 'const' in declarations. */ +# define ZLIB_CONST +#endif +#include "zlib.h" +#ifdef const + /* zlib.h sometimes #defines const to nothing, undo this. */ +# undef const +#endif + +/* zlib.h has mediocre z_const use before 1.2.6, this stuff is for compatibility + * with older builds. + */ +#if ZLIB_VERNUM < 0x1260 +# define PNGZ_MSG_CAST(s) png_constcast(char*,s) +# define PNGZ_INPUT_CAST(b) png_constcast(png_bytep,b) +#else +# define PNGZ_MSG_CAST(s) (s) +# define PNGZ_INPUT_CAST(b) (b) +#endif + +/* zlib.h declares a magic type 'uInt' that limits the amount of data that zlib + * can handle at once. This type need be no larger than 16 bits (so maximum of + * 65535), this define allows us to discover how big it is, but limited by the + * maximuum for png_size_t. The value can be overriden in a library build + * (pngusr.h, or set it in CPPFLAGS) and it works to set it to a considerably + * lower value (e.g. 255 works). A lower value may help memory usage (slightly) + * and may even improve performance on some systems (and degrade it on others.) + */ +#ifndef ZLIB_IO_MAX +# define ZLIB_IO_MAX ((uInt)-1) +#endif + +#ifdef PNG_WRITE_SUPPORTED +/* The type of a compression buffer list used by the write code. */ +typedef struct png_compression_buffer +{ + struct png_compression_buffer *next; + png_byte output[1]; /* actually zbuf_size */ +} png_compression_buffer, *png_compression_bufferp; + +#define PNG_COMPRESSION_BUFFER_SIZE(pp)\ + (offsetof(png_compression_buffer, output) + (pp)->zbuffer_size) +#endif + +/* Colorspace support; structures used in png_struct, png_info and in internal + * functions to hold and communicate information about the color space. + * + * PNG_COLORSPACE_SUPPORTED is only required if the application will perform + * colorspace corrections, otherwise all the colorspace information can be + * skipped and the size of libpng can be reduced (significantly) by compiling + * out the colorspace support. + */ +#ifdef PNG_COLORSPACE_SUPPORTED +/* The chromaticities of the red, green and blue colorants and the chromaticity + * of the corresponding white point (i.e. of rgb(1.0,1.0,1.0)). + */ +typedef struct png_xy +{ + png_fixed_point redx, redy; + png_fixed_point greenx, greeny; + png_fixed_point bluex, bluey; + png_fixed_point whitex, whitey; +} png_xy; + +/* The same data as above but encoded as CIE XYZ values. When this data comes + * from chromaticities the sum of the Y values is assumed to be 1.0 + */ +typedef struct png_XYZ +{ + png_fixed_point red_X, red_Y, red_Z; + png_fixed_point green_X, green_Y, green_Z; + png_fixed_point blue_X, blue_Y, blue_Z; +} png_XYZ; +#endif /* COLORSPACE */ + +#if defined(PNG_COLORSPACE_SUPPORTED) || defined(PNG_GAMMA_SUPPORTED) +/* A colorspace is all the above plus, potentially, profile information, + * however at present libpng does not use the profile internally so it is only + * stored in the png_info struct (if iCCP is supported.) The rendering intent + * is retained here and is checked. + * + * The file gamma encoding information is also stored here and gamma correction + * is done by libpng, whereas color correction must currently be done by the + * application. + */ +typedef struct png_colorspace +{ +#ifdef PNG_GAMMA_SUPPORTED + png_fixed_point gamma; /* File gamma */ +#endif + +#ifdef PNG_COLORSPACE_SUPPORTED + png_xy end_points_xy; /* End points as chromaticities */ + png_XYZ end_points_XYZ; /* End points as CIE XYZ colorant values */ + png_uint_16 rendering_intent; /* Rendering intent of a profile */ +#endif + + /* Flags are always defined to simplify the code. */ + png_uint_16 flags; /* As defined below */ +} png_colorspace, * PNG_RESTRICT png_colorspacerp; + +typedef const png_colorspace * PNG_RESTRICT png_const_colorspacerp; + +/* General flags for the 'flags' field */ +#define PNG_COLORSPACE_HAVE_GAMMA 0x0001 +#define PNG_COLORSPACE_HAVE_ENDPOINTS 0x0002 +#define PNG_COLORSPACE_HAVE_INTENT 0x0004 +#define PNG_COLORSPACE_FROM_gAMA 0x0008 +#define PNG_COLORSPACE_FROM_cHRM 0x0010 +#define PNG_COLORSPACE_FROM_sRGB 0x0020 +#define PNG_COLORSPACE_ENDPOINTS_MATCH_sRGB 0x0040 +#define PNG_COLORSPACE_MATCHES_sRGB 0x0080 /* exact match on profile */ +#define PNG_COLORSPACE_INVALID 0x8000 +#define PNG_COLORSPACE_CANCEL(flags) (0xffff ^ (flags)) +#endif /* COLORSPACE || GAMMA */ + +struct png_struct_def +{ +#ifdef PNG_SETJMP_SUPPORTED + jmp_buf jmp_buf_local; /* New name in 1.6.0 for jmp_buf in png_struct */ + png_longjmp_ptr longjmp_fn;/* setjmp non-local goto function. */ + jmp_buf *jmp_buf_ptr; /* passed to longjmp_fn */ + size_t jmp_buf_size; /* size of the above, if allocated */ +#endif + png_error_ptr error_fn; /* function for printing errors and aborting */ +#ifdef PNG_WARNINGS_SUPPORTED + png_error_ptr warning_fn; /* function for printing warnings */ +#endif + png_voidp error_ptr; /* user supplied struct for error functions */ + png_rw_ptr write_data_fn; /* function for writing output data */ + png_rw_ptr read_data_fn; /* function for reading input data */ + png_voidp io_ptr; /* ptr to application struct for I/O functions */ + +#ifdef PNG_READ_USER_TRANSFORM_SUPPORTED + png_user_transform_ptr read_user_transform_fn; /* user read transform */ +#endif + +#ifdef PNG_WRITE_USER_TRANSFORM_SUPPORTED + png_user_transform_ptr write_user_transform_fn; /* user write transform */ +#endif + +/* These were added in libpng-1.0.2 */ +#ifdef PNG_USER_TRANSFORM_PTR_SUPPORTED +#if defined(PNG_READ_USER_TRANSFORM_SUPPORTED) || \ + defined(PNG_WRITE_USER_TRANSFORM_SUPPORTED) + png_voidp user_transform_ptr; /* user supplied struct for user transform */ + png_byte user_transform_depth; /* bit depth of user transformed pixels */ + png_byte user_transform_channels; /* channels in user transformed pixels */ +#endif +#endif + + png_uint_32 mode; /* tells us where we are in the PNG file */ + png_uint_32 flags; /* flags indicating various things to libpng */ + png_uint_32 transformations; /* which transformations to perform */ + + png_uint_32 zowner; /* ID (chunk type) of zstream owner, 0 if none */ + z_stream zstream; /* decompression structure */ + +#ifdef PNG_WRITE_SUPPORTED + png_compression_bufferp zbuffer_list; /* Created on demand during write */ + uInt zbuffer_size; /* size of the actual buffer */ + + int zlib_level; /* holds zlib compression level */ + int zlib_method; /* holds zlib compression method */ + int zlib_window_bits; /* holds zlib compression window bits */ + int zlib_mem_level; /* holds zlib compression memory level */ + int zlib_strategy; /* holds zlib compression strategy */ +#endif +/* Added at libpng 1.5.4 */ +#ifdef PNG_WRITE_CUSTOMIZE_ZTXT_COMPRESSION_SUPPORTED + int zlib_text_level; /* holds zlib compression level */ + int zlib_text_method; /* holds zlib compression method */ + int zlib_text_window_bits; /* holds zlib compression window bits */ + int zlib_text_mem_level; /* holds zlib compression memory level */ + int zlib_text_strategy; /* holds zlib compression strategy */ +#endif +/* End of material added at libpng 1.5.4 */ +/* Added at libpng 1.6.0 */ +#ifdef PNG_WRITE_SUPPORTED + int zlib_set_level; /* Actual values set into the zstream on write */ + int zlib_set_method; + int zlib_set_window_bits; + int zlib_set_mem_level; + int zlib_set_strategy; +#endif + + png_uint_32 width; /* width of image in pixels */ + png_uint_32 height; /* height of image in pixels */ + png_uint_32 num_rows; /* number of rows in current pass */ + png_uint_32 usr_width; /* width of row at start of write */ + png_size_t rowbytes; /* size of row in bytes */ + png_uint_32 iwidth; /* width of current interlaced row in pixels */ + png_uint_32 row_number; /* current row in interlace pass */ + png_uint_32 chunk_name; /* PNG_CHUNK() id of current chunk */ + png_bytep prev_row; /* buffer to save previous (unfiltered) row. + * This is a pointer into big_prev_row + */ + png_bytep row_buf; /* buffer to save current (unfiltered) row. + * This is a pointer into big_row_buf + */ +#ifdef PNG_WRITE_SUPPORTED + png_bytep sub_row; /* buffer to save "sub" row when filtering */ + png_bytep up_row; /* buffer to save "up" row when filtering */ + png_bytep avg_row; /* buffer to save "avg" row when filtering */ + png_bytep paeth_row; /* buffer to save "Paeth" row when filtering */ +#endif + png_size_t info_rowbytes; /* Added in 1.5.4: cache of updated row bytes */ + + png_uint_32 idat_size; /* current IDAT size for read */ + png_uint_32 crc; /* current chunk CRC value */ + png_colorp palette; /* palette from the input file */ + png_uint_16 num_palette; /* number of color entries in palette */ + +/* Added at libpng-1.5.10 */ +#ifdef PNG_CHECK_FOR_INVALID_INDEX_SUPPORTED + int num_palette_max; /* maximum palette index found in IDAT */ +#endif + + png_uint_16 num_trans; /* number of transparency values */ + png_byte compression; /* file compression type (always 0) */ + png_byte filter; /* file filter type (always 0) */ + png_byte interlaced; /* PNG_INTERLACE_NONE, PNG_INTERLACE_ADAM7 */ + png_byte pass; /* current interlace pass (0 - 6) */ + png_byte do_filter; /* row filter flags (see PNG_FILTER_ below ) */ + png_byte color_type; /* color type of file */ + png_byte bit_depth; /* bit depth of file */ + png_byte usr_bit_depth; /* bit depth of users row: write only */ + png_byte pixel_depth; /* number of bits per pixel */ + png_byte channels; /* number of channels in file */ +#ifdef PNG_WRITE_SUPPORTED + png_byte usr_channels; /* channels at start of write: write only */ +#endif + png_byte sig_bytes; /* magic bytes read/written from start of file */ + png_byte maximum_pixel_depth; + /* pixel depth used for the row buffers */ + png_byte transformed_pixel_depth; + /* pixel depth after read/write transforms */ +#if defined(PNG_READ_FILLER_SUPPORTED) || defined(PNG_WRITE_FILLER_SUPPORTED) + png_uint_16 filler; /* filler bytes for pixel expansion */ +#endif + +#if defined(PNG_bKGD_SUPPORTED) || defined(PNG_READ_BACKGROUND_SUPPORTED) ||\ + defined(PNG_READ_ALPHA_MODE_SUPPORTED) + png_byte background_gamma_type; + png_fixed_point background_gamma; + png_color_16 background; /* background color in screen gamma space */ +#ifdef PNG_READ_GAMMA_SUPPORTED + png_color_16 background_1; /* background normalized to gamma 1.0 */ +#endif +#endif /* PNG_bKGD_SUPPORTED */ + +#ifdef PNG_WRITE_FLUSH_SUPPORTED + png_flush_ptr output_flush_fn; /* Function for flushing output */ + png_uint_32 flush_dist; /* how many rows apart to flush, 0 - no flush */ + png_uint_32 flush_rows; /* number of rows written since last flush */ +#endif + +#ifdef PNG_READ_GAMMA_SUPPORTED + int gamma_shift; /* number of "insignificant" bits in 16-bit gamma */ + png_fixed_point screen_gamma; /* screen gamma value (display_exponent) */ + + png_bytep gamma_table; /* gamma table for 8-bit depth files */ + png_uint_16pp gamma_16_table; /* gamma table for 16-bit depth files */ +#if defined(PNG_READ_BACKGROUND_SUPPORTED) || \ + defined(PNG_READ_ALPHA_MODE_SUPPORTED) || \ + defined(PNG_READ_RGB_TO_GRAY_SUPPORTED) + png_bytep gamma_from_1; /* converts from 1.0 to screen */ + png_bytep gamma_to_1; /* converts from file to 1.0 */ + png_uint_16pp gamma_16_from_1; /* converts from 1.0 to screen */ + png_uint_16pp gamma_16_to_1; /* converts from file to 1.0 */ +#endif /* READ_BACKGROUND || READ_ALPHA_MODE || RGB_TO_GRAY */ +#endif + +#if defined(PNG_READ_GAMMA_SUPPORTED) || defined(PNG_sBIT_SUPPORTED) + png_color_8 sig_bit; /* significant bits in each available channel */ +#endif + +#if defined(PNG_READ_SHIFT_SUPPORTED) || defined(PNG_WRITE_SHIFT_SUPPORTED) + png_color_8 shift; /* shift for significant bit tranformation */ +#endif + +#if defined(PNG_tRNS_SUPPORTED) || defined(PNG_READ_BACKGROUND_SUPPORTED) \ + || defined(PNG_READ_EXPAND_SUPPORTED) || defined(PNG_READ_BACKGROUND_SUPPORTED) + png_bytep trans_alpha; /* alpha values for paletted files */ + png_color_16 trans_color; /* transparent color for non-paletted files */ +#endif + + png_read_status_ptr read_row_fn; /* called after each row is decoded */ + png_write_status_ptr write_row_fn; /* called after each row is encoded */ +#ifdef PNG_PROGRESSIVE_READ_SUPPORTED + png_progressive_info_ptr info_fn; /* called after header data fully read */ + png_progressive_row_ptr row_fn; /* called after a prog. row is decoded */ + png_progressive_end_ptr end_fn; /* called after image is complete */ + png_bytep save_buffer_ptr; /* current location in save_buffer */ + png_bytep save_buffer; /* buffer for previously read data */ + png_bytep current_buffer_ptr; /* current location in current_buffer */ + png_bytep current_buffer; /* buffer for recently used data */ + png_uint_32 push_length; /* size of current input chunk */ + png_uint_32 skip_length; /* bytes to skip in input data */ + png_size_t save_buffer_size; /* amount of data now in save_buffer */ + png_size_t save_buffer_max; /* total size of save_buffer */ + png_size_t buffer_size; /* total amount of available input data */ + png_size_t current_buffer_size; /* amount of data now in current_buffer */ + int process_mode; /* what push library is currently doing */ + int cur_palette; /* current push library palette index */ + +#endif /* PNG_PROGRESSIVE_READ_SUPPORTED */ + +#if defined(__TURBOC__) && !defined(_Windows) && !defined(__FLAT__) +/* For the Borland special 64K segment handler */ + png_bytepp offset_table_ptr; + png_bytep offset_table; + png_uint_16 offset_table_number; + png_uint_16 offset_table_count; + png_uint_16 offset_table_count_free; +#endif + +#ifdef PNG_READ_QUANTIZE_SUPPORTED + png_bytep palette_lookup; /* lookup table for quantizing */ + png_bytep quantize_index; /* index translation for palette files */ +#endif + +#ifdef PNG_WRITE_WEIGHTED_FILTER_SUPPORTED + png_byte heuristic_method; /* heuristic for row filter selection */ + png_byte num_prev_filters; /* number of weights for previous rows */ + png_bytep prev_filters; /* filter type(s) of previous row(s) */ + png_uint_16p filter_weights; /* weight(s) for previous line(s) */ + png_uint_16p inv_filter_weights; /* 1/weight(s) for previous line(s) */ + png_uint_16p filter_costs; /* relative filter calculation cost */ + png_uint_16p inv_filter_costs; /* 1/relative filter calculation cost */ +#endif + + /* Options */ +#ifdef PNG_SET_OPTION_SUPPORTED + png_byte options; /* On/off state (up to 4 options) */ +#endif + +#if PNG_LIBPNG_VER < 10700 +/* To do: remove this from libpng-1.7 */ +#ifdef PNG_TIME_RFC1123_SUPPORTED + char time_buffer[29]; /* String to hold RFC 1123 time text */ +#endif +#endif + +/* New members added in libpng-1.0.6 */ + + png_uint_32 free_me; /* flags items libpng is responsible for freeing */ + +#ifdef PNG_USER_CHUNKS_SUPPORTED + png_voidp user_chunk_ptr; +#ifdef PNG_READ_USER_CHUNKS_SUPPORTED + png_user_chunk_ptr read_user_chunk_fn; /* user read chunk handler */ +#endif +#endif + +#ifdef PNG_SET_UNKNOWN_CHUNKS_SUPPORTED + int unknown_default; /* As PNG_HANDLE_* */ + unsigned int num_chunk_list; /* Number of entries in the list */ + png_bytep chunk_list; /* List of png_byte[5]; the textual chunk name + * followed by a PNG_HANDLE_* byte */ +#endif + +/* New members added in libpng-1.0.3 */ +#ifdef PNG_READ_RGB_TO_GRAY_SUPPORTED + png_byte rgb_to_gray_status; + /* Added in libpng 1.5.5 to record setting of coefficients: */ + png_byte rgb_to_gray_coefficients_set; + /* These were changed from png_byte in libpng-1.0.6 */ + png_uint_16 rgb_to_gray_red_coeff; + png_uint_16 rgb_to_gray_green_coeff; + /* deleted in 1.5.5: rgb_to_gray_blue_coeff; */ +#endif + +/* New member added in libpng-1.0.4 (renamed in 1.0.9) */ +#if defined(PNG_MNG_FEATURES_SUPPORTED) +/* Changed from png_byte to png_uint_32 at version 1.2.0 */ + png_uint_32 mng_features_permitted; +#endif + +/* New member added in libpng-1.0.9, ifdef'ed out in 1.0.12, enabled in 1.2.0 */ +#ifdef PNG_MNG_FEATURES_SUPPORTED + png_byte filter_type; +#endif + +/* New members added in libpng-1.2.0 */ + +/* New members added in libpng-1.0.2 but first enabled by default in 1.2.0 */ +#ifdef PNG_USER_MEM_SUPPORTED + png_voidp mem_ptr; /* user supplied struct for mem functions */ + png_malloc_ptr malloc_fn; /* function for allocating memory */ + png_free_ptr free_fn; /* function for freeing memory */ +#endif + +/* New member added in libpng-1.0.13 and 1.2.0 */ + png_bytep big_row_buf; /* buffer to save current (unfiltered) row */ + +#ifdef PNG_READ_QUANTIZE_SUPPORTED +/* The following three members were added at version 1.0.14 and 1.2.4 */ + png_bytep quantize_sort; /* working sort array */ + png_bytep index_to_palette; /* where the original index currently is + in the palette */ + png_bytep palette_to_index; /* which original index points to this + palette color */ +#endif + +/* New members added in libpng-1.0.16 and 1.2.6 */ + png_byte compression_type; + +#ifdef PNG_USER_LIMITS_SUPPORTED + png_uint_32 user_width_max; + png_uint_32 user_height_max; + + /* Added in libpng-1.4.0: Total number of sPLT, text, and unknown + * chunks that can be stored (0 means unlimited). + */ + png_uint_32 user_chunk_cache_max; + + /* Total memory that a zTXt, sPLT, iTXt, iCCP, or unknown chunk + * can occupy when decompressed. 0 means unlimited. + */ + png_alloc_size_t user_chunk_malloc_max; +#endif + +/* New member added in libpng-1.0.25 and 1.2.17 */ +#ifdef PNG_READ_UNKNOWN_CHUNKS_SUPPORTED + /* Temporary storage for unknown chunk that the library doesn't recognize, + * used while reading the chunk. + */ + png_unknown_chunk unknown_chunk; +#endif + +/* New member added in libpng-1.2.26 */ + png_size_t old_big_row_buf_size; + +#ifdef PNG_READ_SUPPORTED +/* New member added in libpng-1.2.30 */ + png_bytep read_buffer; /* buffer for reading chunk data */ + png_alloc_size_t read_buffer_size; /* current size of the buffer */ +#endif +#ifdef PNG_SEQUENTIAL_READ_SUPPORTED + uInt IDAT_read_size; /* limit on read buffer size for IDAT */ +#endif + +#ifdef PNG_IO_STATE_SUPPORTED +/* New member added in libpng-1.4.0 */ + png_uint_32 io_state; +#endif + +/* New member added in libpng-1.5.6 */ + png_bytep big_prev_row; + +/* New member added in libpng-1.5.7 */ + void (*read_filter[PNG_FILTER_VALUE_LAST-1])(png_row_infop row_info, + png_bytep row, png_const_bytep prev_row); + +#ifdef PNG_READ_SUPPORTED +#if defined(PNG_COLORSPACE_SUPPORTED) || defined(PNG_GAMMA_SUPPORTED) + png_colorspace colorspace; +#endif +#endif +}; +#endif /* PNGSTRUCT_H */ diff --git a/png/pngtest.c b/png/pngtest.c new file mode 100644 index 0000000..ffac74e --- /dev/null +++ b/png/pngtest.c @@ -0,0 +1,1994 @@ + +/* pngtest.c - a simple test program to test libpng + * + * Last changed in libpng 1.6.11 [June 12, 2014] + * Copyright (c) 1998-2014 Glenn Randers-Pehrson + * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) + * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) + * + * This code is released under the libpng license. + * For conditions of distribution and use, see the disclaimer + * and license in png.h + * + * This program reads in a PNG image, writes it out again, and then + * compares the two files. If the files are identical, this shows that + * the basic chunk handling, filtering, and (de)compression code is working + * properly. It does not currently test all of the transforms, although + * it probably should. + * + * The program will report "FAIL" in certain legitimate cases: + * 1) when the compression level or filter selection method is changed. + * 2) when the maximum IDAT size (PNG_ZBUF_SIZE in pngconf.h) is not 8192. + * 3) unknown unsafe-to-copy ancillary chunks or unknown critical chunks + * exist in the input file. + * 4) others not listed here... + * In these cases, it is best to check with another tool such as "pngcheck" + * to see what the differences between the two files are. + * + * If a filename is given on the command-line, then this file is used + * for the input, rather than the default "pngtest.png". This allows + * testing a wide variety of files easily. You can also test a number + * of files at once by typing "pngtest -m file1.png file2.png ..." + */ + +#define _POSIX_SOURCE 1 + +#include +#include +#include + +/* Defined so I can write to a file on gui/windowing platforms */ +/* #define STDERR stderr */ +#define STDERR stdout /* For DOS */ + +#include "png.h" + +/* Known chunks that exist in pngtest.png must be supported or pngtest will fail + * simply as a result of re-ordering them. This may be fixed in 1.7 + * + * pngtest allocates a single row buffer for each row and overwrites it, + * therefore if the write side doesn't support the writing of interlaced images + * nothing can be done for an interlaced image (and the code below will fail + * horribly trying to write extra data after writing garbage). + */ +#if defined PNG_READ_SUPPORTED && /* else nothing can be done */\ + defined PNG_READ_bKGD_SUPPORTED &&\ + defined PNG_READ_cHRM_SUPPORTED &&\ + defined PNG_READ_gAMA_SUPPORTED &&\ + defined PNG_READ_oFFs_SUPPORTED &&\ + defined PNG_READ_pCAL_SUPPORTED &&\ + defined PNG_READ_pHYs_SUPPORTED &&\ + defined PNG_READ_sBIT_SUPPORTED &&\ + defined PNG_READ_sCAL_SUPPORTED &&\ + defined PNG_READ_sRGB_SUPPORTED &&\ + defined PNG_READ_tEXt_SUPPORTED &&\ + defined PNG_READ_tIME_SUPPORTED &&\ + defined PNG_READ_zTXt_SUPPORTED &&\ + defined PNG_WRITE_INTERLACING_SUPPORTED + +#ifdef PNG_ZLIB_HEADER +# include PNG_ZLIB_HEADER /* defined by pnglibconf.h from 1.7 */ +#else +# include "zlib.h" +#endif + +/* Copied from pngpriv.h but only used in error messages below. */ +#ifndef PNG_ZBUF_SIZE +# define PNG_ZBUF_SIZE 8192 +#endif +#define FCLOSE(file) fclose(file) + +#ifndef PNG_STDIO_SUPPORTED +typedef FILE * png_FILE_p; +#endif + +/* Makes pngtest verbose so we can find problems. */ +#ifndef PNG_DEBUG +# define PNG_DEBUG 0 +#endif + +#if PNG_DEBUG > 1 +# define pngtest_debug(m) ((void)fprintf(stderr, m "\n")) +# define pngtest_debug1(m,p1) ((void)fprintf(stderr, m "\n", p1)) +# define pngtest_debug2(m,p1,p2) ((void)fprintf(stderr, m "\n", p1, p2)) +#else +# define pngtest_debug(m) ((void)0) +# define pngtest_debug1(m,p1) ((void)0) +# define pngtest_debug2(m,p1,p2) ((void)0) +#endif + +#if !PNG_DEBUG +# define SINGLE_ROWBUF_ALLOC /* Makes buffer overruns easier to nail */ +#endif + +/* Turn on CPU timing +#define PNGTEST_TIMING +*/ + +#ifndef PNG_FLOATING_POINT_SUPPORTED +#undef PNGTEST_TIMING +#endif + +#ifdef PNGTEST_TIMING +static float t_start, t_stop, t_decode, t_encode, t_misc; +#include +#endif + +#ifdef PNG_TIME_RFC1123_SUPPORTED +#define PNG_tIME_STRING_LENGTH 29 +static int tIME_chunk_present = 0; +static char tIME_string[PNG_tIME_STRING_LENGTH] = "tIME chunk is not present"; +#endif + +static int verbose = 0; +static int strict = 0; +static int relaxed = 0; +static int unsupported_chunks = 0; /* chunk unsupported by libpng in input */ +static int error_count = 0; /* count calls to png_error */ +static int warning_count = 0; /* count calls to png_warning */ + +/* Define png_jmpbuf() in case we are using a pre-1.0.6 version of libpng */ +#ifndef png_jmpbuf +# define png_jmpbuf(png_ptr) png_ptr->jmpbuf +#endif + +/* Defines for unknown chunk handling if required. */ +#ifndef PNG_HANDLE_CHUNK_ALWAYS +# define PNG_HANDLE_CHUNK_ALWAYS 3 +#endif +#ifndef PNG_HANDLE_CHUNK_IF_SAFE +# define PNG_HANDLE_CHUNK_IF_SAFE 2 +#endif + +/* Utility to save typing/errors, the argument must be a name */ +#define MEMZERO(var) ((void)memset(&var, 0, sizeof var)) + +/* Example of using row callbacks to make a simple progress meter */ +static int status_pass = 1; +static int status_dots_requested = 0; +static int status_dots = 1; + +static void PNGCBAPI +read_row_callback(png_structp png_ptr, png_uint_32 row_number, int pass) +{ + if (png_ptr == NULL || row_number > PNG_UINT_31_MAX) + return; + + if (status_pass != pass) + { + fprintf(stdout, "\n Pass %d: ", pass); + status_pass = pass; + status_dots = 31; + } + + status_dots--; + + if (status_dots == 0) + { + fprintf(stdout, "\n "); + status_dots=30; + } + + fprintf(stdout, "r"); +} + +#ifdef PNG_WRITE_SUPPORTED +static void PNGCBAPI +write_row_callback(png_structp png_ptr, png_uint_32 row_number, int pass) +{ + if (png_ptr == NULL || row_number > PNG_UINT_31_MAX || pass > 7) + return; + + fprintf(stdout, "w"); +} +#endif + + +#ifdef PNG_READ_USER_TRANSFORM_SUPPORTED +/* Example of using user transform callback (we don't transform anything, + * but merely examine the row filters. We set this to 256 rather than + * 5 in case illegal filter values are present.) + */ +static png_uint_32 filters_used[256]; +static void PNGCBAPI +count_filters(png_structp png_ptr, png_row_infop row_info, png_bytep data) +{ + if (png_ptr != NULL && row_info != NULL) + ++filters_used[*(data - 1)]; +} +#endif + +#ifdef PNG_WRITE_USER_TRANSFORM_SUPPORTED +/* Example of using user transform callback (we don't transform anything, + * but merely count the zero samples) + */ + +static png_uint_32 zero_samples; + +static void PNGCBAPI +count_zero_samples(png_structp png_ptr, png_row_infop row_info, png_bytep data) +{ + png_bytep dp = data; + if (png_ptr == NULL) + return; + + /* Contents of row_info: + * png_uint_32 width width of row + * png_uint_32 rowbytes number of bytes in row + * png_byte color_type color type of pixels + * png_byte bit_depth bit depth of samples + * png_byte channels number of channels (1-4) + * png_byte pixel_depth bits per pixel (depth*channels) + */ + + /* Counts the number of zero samples (or zero pixels if color_type is 3 */ + + if (row_info->color_type == 0 || row_info->color_type == 3) + { + int pos = 0; + png_uint_32 n, nstop; + + for (n = 0, nstop=row_info->width; nbit_depth == 1) + { + if (((*dp << pos++ ) & 0x80) == 0) + zero_samples++; + + if (pos == 8) + { + pos = 0; + dp++; + } + } + + if (row_info->bit_depth == 2) + { + if (((*dp << (pos+=2)) & 0xc0) == 0) + zero_samples++; + + if (pos == 8) + { + pos = 0; + dp++; + } + } + + if (row_info->bit_depth == 4) + { + if (((*dp << (pos+=4)) & 0xf0) == 0) + zero_samples++; + + if (pos == 8) + { + pos = 0; + dp++; + } + } + + if (row_info->bit_depth == 8) + if (*dp++ == 0) + zero_samples++; + + if (row_info->bit_depth == 16) + { + if ((*dp | *(dp+1)) == 0) + zero_samples++; + dp+=2; + } + } + } + else /* Other color types */ + { + png_uint_32 n, nstop; + int channel; + int color_channels = row_info->channels; + if (row_info->color_type > 3)color_channels--; + + for (n = 0, nstop=row_info->width; nbit_depth == 8) + if (*dp++ == 0) + zero_samples++; + + if (row_info->bit_depth == 16) + { + if ((*dp | *(dp+1)) == 0) + zero_samples++; + + dp+=2; + } + } + if (row_info->color_type > 3) + { + dp++; + if (row_info->bit_depth == 16) + dp++; + } + } + } +} +#endif /* PNG_WRITE_USER_TRANSFORM_SUPPORTED */ + +#ifndef PNG_STDIO_SUPPORTED +/* START of code to validate stdio-free compilation */ +/* These copies of the default read/write functions come from pngrio.c and + * pngwio.c. They allow "don't include stdio" testing of the library. + * This is the function that does the actual reading of data. If you are + * not reading from a standard C stream, you should create a replacement + * read_data function and use it at run time with png_set_read_fn(), rather + * than changing the library. + */ + +#ifdef PNG_IO_STATE_SUPPORTED +void +pngtest_check_io_state(png_structp png_ptr, png_size_t data_length, + png_uint_32 io_op); +void +pngtest_check_io_state(png_structp png_ptr, png_size_t data_length, + png_uint_32 io_op) +{ + png_uint_32 io_state = png_get_io_state(png_ptr); + int err = 0; + + /* Check if the current operation (reading / writing) is as expected. */ + if ((io_state & PNG_IO_MASK_OP) != io_op) + png_error(png_ptr, "Incorrect operation in I/O state"); + + /* Check if the buffer size specific to the current location + * (file signature / header / data / crc) is as expected. + */ + switch (io_state & PNG_IO_MASK_LOC) + { + case PNG_IO_SIGNATURE: + if (data_length > 8) + err = 1; + break; + case PNG_IO_CHUNK_HDR: + if (data_length != 8) + err = 1; + break; + case PNG_IO_CHUNK_DATA: + break; /* no restrictions here */ + case PNG_IO_CHUNK_CRC: + if (data_length != 4) + err = 1; + break; + default: + err = 1; /* uninitialized */ + } + if (err != 0) + png_error(png_ptr, "Bad I/O state or buffer size"); +} +#endif + +static void PNGCBAPI +pngtest_read_data(png_structp png_ptr, png_bytep data, png_size_t length) +{ + png_size_t check = 0; + png_voidp io_ptr; + + /* fread() returns 0 on error, so it is OK to store this in a png_size_t + * instead of an int, which is what fread() actually returns. + */ + io_ptr = png_get_io_ptr(png_ptr); + if (io_ptr != NULL) + { + check = fread(data, 1, length, (png_FILE_p)io_ptr); + } + + if (check != length) + { + png_error(png_ptr, "Read Error"); + } + +#ifdef PNG_IO_STATE_SUPPORTED + pngtest_check_io_state(png_ptr, length, PNG_IO_READING); +#endif +} + +#ifdef PNG_WRITE_FLUSH_SUPPORTED +static void PNGCBAPI +pngtest_flush(png_structp png_ptr) +{ + /* Do nothing; fflush() is said to be just a waste of energy. */ + PNG_UNUSED(png_ptr) /* Stifle compiler warning */ +} +#endif + +/* This is the function that does the actual writing of data. If you are + * not writing to a standard C stream, you should create a replacement + * write_data function and use it at run time with png_set_write_fn(), rather + * than changing the library. + */ +static void PNGCBAPI +pngtest_write_data(png_structp png_ptr, png_bytep data, png_size_t length) +{ + png_size_t check; + + check = fwrite(data, 1, length, (png_FILE_p)png_get_io_ptr(png_ptr)); + + if (check != length) + { + png_error(png_ptr, "Write Error"); + } + +#ifdef PNG_IO_STATE_SUPPORTED + pngtest_check_io_state(png_ptr, length, PNG_IO_WRITING); +#endif +} +#endif /* !PNG_STDIO_SUPPORTED */ + +/* This function is called when there is a warning, but the library thinks + * it can continue anyway. Replacement functions don't have to do anything + * here if you don't want to. In the default configuration, png_ptr is + * not used, but it is passed in case it may be useful. + */ +typedef struct +{ + PNG_CONST char *file_name; +} pngtest_error_parameters; + +static void PNGCBAPI +pngtest_warning(png_structp png_ptr, png_const_charp message) +{ + PNG_CONST char *name = "UNKNOWN (ERROR!)"; + pngtest_error_parameters *test = + (pngtest_error_parameters*)png_get_error_ptr(png_ptr); + + ++warning_count; + + if (test != NULL && test->file_name != NULL) + name = test->file_name; + + fprintf(STDERR, "%s: libpng warning: %s\n", name, message); +} + +/* This is the default error handling function. Note that replacements for + * this function MUST NOT RETURN, or the program will likely crash. This + * function is used by default, or if the program supplies NULL for the + * error function pointer in png_set_error_fn(). + */ +static void PNGCBAPI +pngtest_error(png_structp png_ptr, png_const_charp message) +{ + ++error_count; + + pngtest_warning(png_ptr, message); + /* We can return because png_error calls the default handler, which is + * actually OK in this case. + */ +} + +/* END of code to validate stdio-free compilation */ + +/* START of code to validate memory allocation and deallocation */ +#if defined(PNG_USER_MEM_SUPPORTED) && PNG_DEBUG + +/* Allocate memory. For reasonable files, size should never exceed + * 64K. However, zlib may allocate more then 64K if you don't tell + * it not to. See zconf.h and png.h for more information. zlib does + * need to allocate exactly 64K, so whatever you call here must + * have the ability to do that. + * + * This piece of code can be compiled to validate max 64K allocations + * by setting MAXSEG_64K in zlib zconf.h *or* PNG_MAX_MALLOC_64K. + */ +typedef struct memory_information +{ + png_alloc_size_t size; + png_voidp pointer; + struct memory_information *next; +} memory_information; +typedef memory_information *memory_infop; + +static memory_infop pinformation = NULL; +static int current_allocation = 0; +static int maximum_allocation = 0; +static int total_allocation = 0; +static int num_allocations = 0; + +png_voidp PNGCBAPI png_debug_malloc PNGARG((png_structp png_ptr, + png_alloc_size_t size)); +void PNGCBAPI png_debug_free PNGARG((png_structp png_ptr, png_voidp ptr)); + +png_voidp +PNGCBAPI png_debug_malloc(png_structp png_ptr, png_alloc_size_t size) +{ + + /* png_malloc has already tested for NULL; png_create_struct calls + * png_debug_malloc directly, with png_ptr == NULL which is OK + */ + + if (size == 0) + return (NULL); + + /* This calls the library allocator twice, once to get the requested + buffer and once to get a new free list entry. */ + { + /* Disable malloc_fn and free_fn */ + memory_infop pinfo; + png_set_mem_fn(png_ptr, NULL, NULL, NULL); + pinfo = (memory_infop)png_malloc(png_ptr, + (sizeof *pinfo)); + pinfo->size = size; + current_allocation += size; + total_allocation += size; + num_allocations ++; + + if (current_allocation > maximum_allocation) + maximum_allocation = current_allocation; + + pinfo->pointer = png_malloc(png_ptr, size); + /* Restore malloc_fn and free_fn */ + + png_set_mem_fn(png_ptr, + NULL, png_debug_malloc, png_debug_free); + + if (size != 0 && pinfo->pointer == NULL) + { + current_allocation -= size; + total_allocation -= size; + png_error(png_ptr, + "out of memory in pngtest->png_debug_malloc"); + } + + pinfo->next = pinformation; + pinformation = pinfo; + /* Make sure the caller isn't assuming zeroed memory. */ + memset(pinfo->pointer, 0xdd, pinfo->size); + + if (verbose != 0) + printf("png_malloc %lu bytes at %p\n", (unsigned long)size, + pinfo->pointer); + + return (png_voidp)(pinfo->pointer); + } +} + +/* Free a pointer. It is removed from the list at the same time. */ +void PNGCBAPI +png_debug_free(png_structp png_ptr, png_voidp ptr) +{ + if (png_ptr == NULL) + fprintf(STDERR, "NULL pointer to png_debug_free.\n"); + + if (ptr == 0) + { +#if 0 /* This happens all the time. */ + fprintf(STDERR, "WARNING: freeing NULL pointer\n"); +#endif + return; + } + + /* Unlink the element from the list. */ + { + memory_infop *ppinfo = &pinformation; + + for (;;) + { + memory_infop pinfo = *ppinfo; + + if (pinfo->pointer == ptr) + { + *ppinfo = pinfo->next; + current_allocation -= pinfo->size; + if (current_allocation < 0) + fprintf(STDERR, "Duplicate free of memory\n"); + /* We must free the list element too, but first kill + the memory that is to be freed. */ + memset(ptr, 0x55, pinfo->size); + if (pinfo != NULL) + free(pinfo); + pinfo = NULL; + break; + } + + if (pinfo->next == NULL) + { + fprintf(STDERR, "Pointer %x not found\n", (unsigned int)ptr); + break; + } + + ppinfo = &pinfo->next; + } + } + + /* Finally free the data. */ + if (verbose != 0) + printf("Freeing %p\n", ptr); + + if (ptr != NULL) + free(ptr); + ptr = NULL; +} +#endif /* PNG_USER_MEM_SUPPORTED && PNG_DEBUG */ +/* END of code to test memory allocation/deallocation */ + + +#ifdef PNG_READ_USER_CHUNKS_SUPPORTED +/* Demonstration of user chunk support of the sTER and vpAg chunks */ + +/* (sTER is a public chunk not yet known by libpng. vpAg is a private +chunk used in ImageMagick to store "virtual page" size). */ + +static struct user_chunk_data +{ + png_const_infop info_ptr; + png_uint_32 vpAg_width, vpAg_height; + png_byte vpAg_units; + png_byte sTER_mode; + int location[2]; +} +user_chunk_data; + +/* Used for location and order; zero means nothing. */ +#define have_sTER 0x01 +#define have_vpAg 0x02 +#define before_PLTE 0x10 +#define before_IDAT 0x20 +#define after_IDAT 0x40 + +static void +init_callback_info(png_const_infop info_ptr) +{ + MEMZERO(user_chunk_data); + user_chunk_data.info_ptr = info_ptr; +} + +static int +set_location(png_structp png_ptr, struct user_chunk_data *data, int what) +{ + int location; + + if ((data->location[0] & what) || (data->location[1] & what)) + return 0; /* already have one of these */ + + /* Find where we are (the code below zeros info_ptr to indicate that the + * chunks before the first IDAT have been read.) + */ + if (data->info_ptr == NULL) /* after IDAT */ + location = what | after_IDAT; + + else if (png_get_valid(png_ptr, data->info_ptr, PNG_INFO_PLTE)) + location = what | before_IDAT; + + else + location = what | before_PLTE; + + if (data->location[0] == 0) + data->location[0] = location; + + else + data->location[1] = location; + + return 1; /* handled */ +} + +static int PNGCBAPI +read_user_chunk_callback(png_struct *png_ptr, png_unknown_chunkp chunk) +{ + struct user_chunk_data *my_user_chunk_data = + (struct user_chunk_data*)png_get_user_chunk_ptr(png_ptr); + + if (my_user_chunk_data == NULL) + png_error(png_ptr, "lost user chunk pointer"); + + /* Return one of the following: + * return (-n); chunk had an error + * return (0); did not recognize + * return (n); success + * + * The unknown chunk structure contains the chunk data: + * png_byte name[5]; + * png_byte *data; + * png_size_t size; + * + * Note that libpng has already taken care of the CRC handling. + */ + + if (chunk->name[0] == 115 && chunk->name[1] == 84 && /* s T */ + chunk->name[2] == 69 && chunk->name[3] == 82) /* E R */ + { + /* Found sTER chunk */ + if (chunk->size != 1) + return (-1); /* Error return */ + + if (chunk->data[0] != 0 && chunk->data[0] != 1) + return (-1); /* Invalid mode */ + + if (set_location(png_ptr, my_user_chunk_data, have_sTER)) + { + my_user_chunk_data->sTER_mode=chunk->data[0]; + return (1); + } + + else + return (0); /* duplicate sTER - give it to libpng */ + } + + if (chunk->name[0] != 118 || chunk->name[1] != 112 || /* v p */ + chunk->name[2] != 65 || chunk->name[3] != 103) /* A g */ + return (0); /* Did not recognize */ + + /* Found ImageMagick vpAg chunk */ + + if (chunk->size != 9) + return (-1); /* Error return */ + + if (!set_location(png_ptr, my_user_chunk_data, have_vpAg)) + return (0); /* duplicate vpAg */ + + my_user_chunk_data->vpAg_width = png_get_uint_31(png_ptr, chunk->data); + my_user_chunk_data->vpAg_height = png_get_uint_31(png_ptr, chunk->data + 4); + my_user_chunk_data->vpAg_units = chunk->data[8]; + + return (1); +} + +#ifdef PNG_WRITE_SUPPORTED +static void +write_sTER_chunk(png_structp write_ptr) +{ + png_byte sTER[5] = {115, 84, 69, 82, '\0'}; + + if (verbose != 0) + fprintf(STDERR, "\n stereo mode = %d\n", user_chunk_data.sTER_mode); + + png_write_chunk(write_ptr, sTER, &user_chunk_data.sTER_mode, 1); +} + +static void +write_vpAg_chunk(png_structp write_ptr) +{ + png_byte vpAg[5] = {118, 112, 65, 103, '\0'}; + + png_byte vpag_chunk_data[9]; + + if (verbose != 0) + fprintf(STDERR, " vpAg = %lu x %lu, units = %d\n", + (unsigned long)user_chunk_data.vpAg_width, + (unsigned long)user_chunk_data.vpAg_height, + user_chunk_data.vpAg_units); + + png_save_uint_32(vpag_chunk_data, user_chunk_data.vpAg_width); + png_save_uint_32(vpag_chunk_data + 4, user_chunk_data.vpAg_height); + vpag_chunk_data[8] = user_chunk_data.vpAg_units; + png_write_chunk(write_ptr, vpAg, vpag_chunk_data, 9); +} + +static void +write_chunks(png_structp write_ptr, int location) +{ + int i; + + /* Notice that this preserves the original chunk order, however chunks + * intercepted by the callback will be written *after* chunks passed to + * libpng. This will actually reverse a pair of sTER chunks or a pair of + * vpAg chunks, resulting in an error later. This is not worth worrying + * about - the chunks should not be duplicated! + */ + for (i=0; i<2; ++i) + { + if (user_chunk_data.location[i] == (location | have_sTER)) + write_sTER_chunk(write_ptr); + + else if (user_chunk_data.location[i] == (location | have_vpAg)) + write_vpAg_chunk(write_ptr); + } +} +#endif /* PNG_WRITE_SUPPORTED */ +#else /* !PNG_READ_USER_CHUNKS_SUPPORTED */ +# define write_chunks(pp,loc) ((void)0) +#endif +/* END of code to demonstrate user chunk support */ + +/* START of code to check that libpng has the required text support; this only + * checks for the write support because if read support is missing the chunk + * will simply not be reported back to pngtest. + */ +#ifdef PNG_TEXT_SUPPORTED +static void +pngtest_check_text_support(png_const_structp png_ptr, png_textp text_ptr, + int num_text) +{ + while (num_text > 0) + { + switch (text_ptr[--num_text].compression) + { + case PNG_TEXT_COMPRESSION_NONE: + break; + + case PNG_TEXT_COMPRESSION_zTXt: +# ifndef PNG_WRITE_zTXt_SUPPORTED + ++unsupported_chunks; +# endif + break; + + case PNG_ITXT_COMPRESSION_NONE: + case PNG_ITXT_COMPRESSION_zTXt: +# ifndef PNG_WRITE_iTXt_SUPPORTED + ++unsupported_chunks; +# endif + break; + + default: + /* This is an error */ + png_error(png_ptr, "invalid text chunk compression field"); + break; + } + } +} +#endif +/* END of code to check that libpng has the required text support */ + +/* Test one file */ +static int +test_one_file(PNG_CONST char *inname, PNG_CONST char *outname) +{ + static png_FILE_p fpin; + static png_FILE_p fpout; /* "static" prevents setjmp corruption */ + pngtest_error_parameters error_parameters; + png_structp read_ptr; + png_infop read_info_ptr, end_info_ptr; +#ifdef PNG_WRITE_SUPPORTED + png_structp write_ptr; + png_infop write_info_ptr; + png_infop write_end_info_ptr; + int interlace_preserved = 1; +#else + png_structp write_ptr = NULL; + png_infop write_info_ptr = NULL; + png_infop write_end_info_ptr = NULL; +#endif + png_bytep row_buf; + png_uint_32 y; + png_uint_32 width, height; + int num_pass = 1, pass; + int bit_depth, color_type; + + row_buf = NULL; + error_parameters.file_name = inname; + + if ((fpin = fopen(inname, "rb")) == NULL) + { + fprintf(STDERR, "Could not find input file %s\n", inname); + return (1); + } + + if ((fpout = fopen(outname, "wb")) == NULL) + { + fprintf(STDERR, "Could not open output file %s\n", outname); + FCLOSE(fpin); + return (1); + } + + pngtest_debug("Allocating read and write structures"); +#if defined(PNG_USER_MEM_SUPPORTED) && PNG_DEBUG + read_ptr = + png_create_read_struct_2(PNG_LIBPNG_VER_STRING, NULL, + NULL, NULL, NULL, png_debug_malloc, png_debug_free); +#else + read_ptr = + png_create_read_struct(PNG_LIBPNG_VER_STRING, NULL, NULL, NULL); +#endif + png_set_error_fn(read_ptr, &error_parameters, pngtest_error, + pngtest_warning); + +#ifdef PNG_WRITE_SUPPORTED +#if defined(PNG_USER_MEM_SUPPORTED) && PNG_DEBUG + write_ptr = + png_create_write_struct_2(PNG_LIBPNG_VER_STRING, NULL, + NULL, NULL, NULL, png_debug_malloc, png_debug_free); +#else + write_ptr = + png_create_write_struct(PNG_LIBPNG_VER_STRING, NULL, NULL, NULL); +#endif + png_set_error_fn(write_ptr, &error_parameters, pngtest_error, + pngtest_warning); +#endif + pngtest_debug("Allocating read_info, write_info and end_info structures"); + read_info_ptr = png_create_info_struct(read_ptr); + end_info_ptr = png_create_info_struct(read_ptr); +#ifdef PNG_WRITE_SUPPORTED + write_info_ptr = png_create_info_struct(write_ptr); + write_end_info_ptr = png_create_info_struct(write_ptr); +#endif + +#ifdef PNG_READ_USER_CHUNKS_SUPPORTED + init_callback_info(read_info_ptr); + png_set_read_user_chunk_fn(read_ptr, &user_chunk_data, + read_user_chunk_callback); +#endif + +#ifdef PNG_SETJMP_SUPPORTED + pngtest_debug("Setting jmpbuf for read struct"); + if (setjmp(png_jmpbuf(read_ptr))) + { + fprintf(STDERR, "%s -> %s: libpng read error\n", inname, outname); + png_free(read_ptr, row_buf); + row_buf = NULL; + png_destroy_read_struct(&read_ptr, &read_info_ptr, &end_info_ptr); +#ifdef PNG_WRITE_SUPPORTED + png_destroy_info_struct(write_ptr, &write_end_info_ptr); + png_destroy_write_struct(&write_ptr, &write_info_ptr); +#endif + FCLOSE(fpin); + FCLOSE(fpout); + return (1); + } + +#ifdef PNG_WRITE_SUPPORTED + pngtest_debug("Setting jmpbuf for write struct"); + + if (setjmp(png_jmpbuf(write_ptr))) + { + fprintf(STDERR, "%s -> %s: libpng write error\n", inname, outname); + png_destroy_read_struct(&read_ptr, &read_info_ptr, &end_info_ptr); + png_destroy_info_struct(write_ptr, &write_end_info_ptr); +#ifdef PNG_WRITE_SUPPORTED + png_destroy_write_struct(&write_ptr, &write_info_ptr); +#endif + FCLOSE(fpin); + FCLOSE(fpout); + return (1); + } +#endif +#endif + + if (strict != 0) + { + /* Treat png_benign_error() as errors on read */ + png_set_benign_errors(read_ptr, 0); + +#ifdef PNG_WRITE_SUPPORTED + /* Treat them as errors on write */ + png_set_benign_errors(write_ptr, 0); +#endif + + /* if strict is not set, then app warnings and errors are treated as + * warnings in release builds, but not in unstable builds; this can be + * changed with '--relaxed'. + */ + } + + else if (relaxed != 0) + { + /* Allow application (pngtest) errors and warnings to pass */ + png_set_benign_errors(read_ptr, 1); + +#ifdef PNG_WRITE_SUPPORTED + png_set_benign_errors(write_ptr, 1); +#endif + } + + pngtest_debug("Initializing input and output streams"); +#ifdef PNG_STDIO_SUPPORTED + png_init_io(read_ptr, fpin); +# ifdef PNG_WRITE_SUPPORTED + png_init_io(write_ptr, fpout); +# endif +#else + png_set_read_fn(read_ptr, (png_voidp)fpin, pngtest_read_data); +# ifdef PNG_WRITE_SUPPORTED + png_set_write_fn(write_ptr, (png_voidp)fpout, pngtest_write_data, +# ifdef PNG_WRITE_FLUSH_SUPPORTED + pngtest_flush); +# else + NULL); +# endif +# endif +#endif + + if (status_dots_requested == 1) + { +#ifdef PNG_WRITE_SUPPORTED + png_set_write_status_fn(write_ptr, write_row_callback); +#endif + png_set_read_status_fn(read_ptr, read_row_callback); + } + + else + { +#ifdef PNG_WRITE_SUPPORTED + png_set_write_status_fn(write_ptr, NULL); +#endif + png_set_read_status_fn(read_ptr, NULL); + } + +#ifdef PNG_READ_USER_TRANSFORM_SUPPORTED + { + int i; + + for (i = 0; i<256; i++) + filters_used[i] = 0; + + png_set_read_user_transform_fn(read_ptr, count_filters); + } +#endif +#ifdef PNG_WRITE_USER_TRANSFORM_SUPPORTED + zero_samples = 0; + png_set_write_user_transform_fn(write_ptr, count_zero_samples); +#endif + +#ifdef PNG_SET_UNKNOWN_CHUNKS_SUPPORTED + /* Preserve all the unknown chunks, if possible. If this is disabled then, + * even if the png_{get,set}_unknown_chunks stuff is enabled, we can't use + * libpng to *save* the unknown chunks on read (because we can't switch the + * save option on!) + * + * Notice that if SET_UNKNOWN_CHUNKS is *not* supported read will discard all + * unknown chunks and write will write them all. + */ +#ifdef PNG_SAVE_UNKNOWN_CHUNKS_SUPPORTED + png_set_keep_unknown_chunks(read_ptr, PNG_HANDLE_CHUNK_ALWAYS, + NULL, 0); +#endif +#ifdef PNG_WRITE_UNKNOWN_CHUNKS_SUPPORTED + png_set_keep_unknown_chunks(write_ptr, PNG_HANDLE_CHUNK_ALWAYS, + NULL, 0); +#endif +#endif + + pngtest_debug("Reading info struct"); + png_read_info(read_ptr, read_info_ptr); + +#ifdef PNG_READ_USER_CHUNKS_SUPPORTED + /* This is a bit of a hack; there is no obvious way in the callback function + * to determine that the chunks before the first IDAT have been read, so + * remove the info_ptr (which is only used to determine position relative to + * PLTE) here to indicate that we are after the IDAT. + */ + user_chunk_data.info_ptr = NULL; +#endif + + pngtest_debug("Transferring info struct"); + { + int interlace_type, compression_type, filter_type; + + if (png_get_IHDR(read_ptr, read_info_ptr, &width, &height, &bit_depth, + &color_type, &interlace_type, &compression_type, &filter_type)) + { + png_set_IHDR(write_ptr, write_info_ptr, width, height, bit_depth, + color_type, interlace_type, compression_type, filter_type); +#ifndef PNG_READ_INTERLACING_SUPPORTED + /* num_pass will not be set below, set it here if the image is + * interlaced: what happens is that write interlacing is *not* turned + * on an the partial interlaced rows are written directly. + */ + switch (interlace_type) + { + case PNG_INTERLACE_NONE: + num_pass = 1; + break; + + case PNG_INTERLACE_ADAM7: + num_pass = 7; + break; + + default: + png_error(read_ptr, "invalid interlace type"); + /*NOT REACHED*/ + } +#endif + } + } +#ifdef PNG_FIXED_POINT_SUPPORTED +#ifdef PNG_cHRM_SUPPORTED + { + png_fixed_point white_x, white_y, red_x, red_y, green_x, green_y, blue_x, + blue_y; + + if (png_get_cHRM_fixed(read_ptr, read_info_ptr, &white_x, &white_y, + &red_x, &red_y, &green_x, &green_y, &blue_x, &blue_y)) + { + png_set_cHRM_fixed(write_ptr, write_info_ptr, white_x, white_y, red_x, + red_y, green_x, green_y, blue_x, blue_y); + } + } +#endif +#ifdef PNG_gAMA_SUPPORTED + { + png_fixed_point gamma; + + if (png_get_gAMA_fixed(read_ptr, read_info_ptr, &gamma)) + png_set_gAMA_fixed(write_ptr, write_info_ptr, gamma); + } +#endif +#else /* Use floating point versions */ +#ifdef PNG_FLOATING_POINT_SUPPORTED +#ifdef PNG_cHRM_SUPPORTED + { + double white_x, white_y, red_x, red_y, green_x, green_y, blue_x, + blue_y; + + if (png_get_cHRM(read_ptr, read_info_ptr, &white_x, &white_y, &red_x, + &red_y, &green_x, &green_y, &blue_x, &blue_y)) + { + png_set_cHRM(write_ptr, write_info_ptr, white_x, white_y, red_x, + red_y, green_x, green_y, blue_x, blue_y); + } + } +#endif +#ifdef PNG_gAMA_SUPPORTED + { + double gamma; + + if (png_get_gAMA(read_ptr, read_info_ptr, &gamma)) + png_set_gAMA(write_ptr, write_info_ptr, gamma); + } +#endif +#endif /* Floating point */ +#endif /* Fixed point */ +#ifdef PNG_iCCP_SUPPORTED + { + png_charp name; + png_bytep profile; + png_uint_32 proflen; + int compression_type; + + if (png_get_iCCP(read_ptr, read_info_ptr, &name, &compression_type, + &profile, &proflen)) + { + png_set_iCCP(write_ptr, write_info_ptr, name, compression_type, + profile, proflen); + } + } +#endif +#ifdef PNG_sRGB_SUPPORTED + { + int intent; + + if (png_get_sRGB(read_ptr, read_info_ptr, &intent)) + png_set_sRGB(write_ptr, write_info_ptr, intent); + } +#endif + { + png_colorp palette; + int num_palette; + + if (png_get_PLTE(read_ptr, read_info_ptr, &palette, &num_palette)) + png_set_PLTE(write_ptr, write_info_ptr, palette, num_palette); + } +#ifdef PNG_bKGD_SUPPORTED + { + png_color_16p background; + + if (png_get_bKGD(read_ptr, read_info_ptr, &background)) + { + png_set_bKGD(write_ptr, write_info_ptr, background); + } + } +#endif +#ifdef PNG_hIST_SUPPORTED + { + png_uint_16p hist; + + if (png_get_hIST(read_ptr, read_info_ptr, &hist)) + png_set_hIST(write_ptr, write_info_ptr, hist); + } +#endif +#ifdef PNG_oFFs_SUPPORTED + { + png_int_32 offset_x, offset_y; + int unit_type; + + if (png_get_oFFs(read_ptr, read_info_ptr, &offset_x, &offset_y, + &unit_type)) + { + png_set_oFFs(write_ptr, write_info_ptr, offset_x, offset_y, unit_type); + } + } +#endif +#ifdef PNG_pCAL_SUPPORTED + { + png_charp purpose, units; + png_charpp params; + png_int_32 X0, X1; + int type, nparams; + + if (png_get_pCAL(read_ptr, read_info_ptr, &purpose, &X0, &X1, &type, + &nparams, &units, ¶ms)) + { + png_set_pCAL(write_ptr, write_info_ptr, purpose, X0, X1, type, + nparams, units, params); + } + } +#endif +#ifdef PNG_pHYs_SUPPORTED + { + png_uint_32 res_x, res_y; + int unit_type; + + if (png_get_pHYs(read_ptr, read_info_ptr, &res_x, &res_y, &unit_type)) + png_set_pHYs(write_ptr, write_info_ptr, res_x, res_y, unit_type); + } +#endif +#ifdef PNG_sBIT_SUPPORTED + { + png_color_8p sig_bit; + + if (png_get_sBIT(read_ptr, read_info_ptr, &sig_bit)) + png_set_sBIT(write_ptr, write_info_ptr, sig_bit); + } +#endif +#ifdef PNG_sCAL_SUPPORTED +#if defined(PNG_FLOATING_POINT_SUPPORTED) && \ + defined(PNG_FLOATING_ARITHMETIC_SUPPORTED) + { + int unit; + double scal_width, scal_height; + + if (png_get_sCAL(read_ptr, read_info_ptr, &unit, &scal_width, + &scal_height)) + { + png_set_sCAL(write_ptr, write_info_ptr, unit, scal_width, scal_height); + } + } +#else +#ifdef PNG_FIXED_POINT_SUPPORTED + { + int unit; + png_charp scal_width, scal_height; + + if (png_get_sCAL_s(read_ptr, read_info_ptr, &unit, &scal_width, + &scal_height)) + { + png_set_sCAL_s(write_ptr, write_info_ptr, unit, scal_width, + scal_height); + } + } +#endif +#endif +#endif +#ifdef PNG_TEXT_SUPPORTED + { + png_textp text_ptr; + int num_text; + + if (png_get_text(read_ptr, read_info_ptr, &text_ptr, &num_text) > 0) + { + pngtest_debug1("Handling %d iTXt/tEXt/zTXt chunks", num_text); + + pngtest_check_text_support(read_ptr, text_ptr, num_text); + + if (verbose != 0) + { + int i; + + printf("\n"); + for (i=0; igray > sample_max) || + (color_type == PNG_COLOR_TYPE_RGB && + ((int)trans_color->red > sample_max || + (int)trans_color->green > sample_max || + (int)trans_color->blue > sample_max)))) + png_set_tRNS(write_ptr, write_info_ptr, trans_alpha, num_trans, + trans_color); + } + } +#endif +#ifdef PNG_WRITE_UNKNOWN_CHUNKS_SUPPORTED + { + png_unknown_chunkp unknowns; + int num_unknowns = png_get_unknown_chunks(read_ptr, read_info_ptr, + &unknowns); + + if (num_unknowns != 0) + { + png_set_unknown_chunks(write_ptr, write_info_ptr, unknowns, + num_unknowns); +#if PNG_LIBPNG_VER < 10600 + /* Copy the locations from the read_info_ptr. The automatically + * generated locations in write_end_info_ptr are wrong prior to 1.6.0 + * because they are reset from the write pointer (removed in 1.6.0). + */ + { + int i; + for (i = 0; i < num_unknowns; i++) + png_set_unknown_chunk_location(write_ptr, write_info_ptr, i, + unknowns[i].location); + } +#endif + } + } +#endif + +#ifdef PNG_WRITE_SUPPORTED + pngtest_debug("Writing info struct"); + + /* Write the info in two steps so that if we write the 'unknown' chunks here + * they go to the correct place. + */ + png_write_info_before_PLTE(write_ptr, write_info_ptr); + + write_chunks(write_ptr, before_PLTE); /* before PLTE */ + + png_write_info(write_ptr, write_info_ptr); + + write_chunks(write_ptr, before_IDAT); /* after PLTE */ +#endif + +#ifdef SINGLE_ROWBUF_ALLOC + pngtest_debug("Allocating row buffer..."); + row_buf = (png_bytep)png_malloc(read_ptr, + png_get_rowbytes(read_ptr, read_info_ptr)); + + pngtest_debug1("\t0x%08lx", (unsigned long)row_buf); +#endif /* SINGLE_ROWBUF_ALLOC */ + pngtest_debug("Writing row data"); + +#ifdef PNG_READ_INTERLACING_SUPPORTED + num_pass = png_set_interlace_handling(read_ptr); + if (png_set_interlace_handling(write_ptr) != num_pass) + png_error(write_ptr, "png_set_interlace_handling: inconsistent num_pass"); +#endif + +#ifdef PNGTEST_TIMING + t_stop = (float)clock(); + t_misc += (t_stop - t_start); + t_start = t_stop; +#endif + for (pass = 0; pass < num_pass; pass++) + { + pngtest_debug1("Writing row data for pass %d", pass); + for (y = 0; y < height; y++) + { +#ifndef SINGLE_ROWBUF_ALLOC + pngtest_debug2("Allocating row buffer (pass %d, y = %u)...", pass, y); + row_buf = (png_bytep)png_malloc(read_ptr, + png_get_rowbytes(read_ptr, read_info_ptr)); + + pngtest_debug2("\t0x%08lx (%u bytes)", (unsigned long)row_buf, + png_get_rowbytes(read_ptr, read_info_ptr)); + +#endif /* !SINGLE_ROWBUF_ALLOC */ + png_read_rows(read_ptr, (png_bytepp)&row_buf, NULL, 1); + +#ifdef PNG_WRITE_SUPPORTED +#ifdef PNGTEST_TIMING + t_stop = (float)clock(); + t_decode += (t_stop - t_start); + t_start = t_stop; +#endif + png_write_rows(write_ptr, (png_bytepp)&row_buf, 1); +#ifdef PNGTEST_TIMING + t_stop = (float)clock(); + t_encode += (t_stop - t_start); + t_start = t_stop; +#endif +#endif /* PNG_WRITE_SUPPORTED */ + +#ifndef SINGLE_ROWBUF_ALLOC + pngtest_debug2("Freeing row buffer (pass %d, y = %u)", pass, y); + png_free(read_ptr, row_buf); + row_buf = NULL; +#endif /* !SINGLE_ROWBUF_ALLOC */ + } + } + +#ifdef PNG_STORE_UNKNOWN_CHUNKS_SUPPORTED +# ifdef PNG_READ_UNKNOWN_CHUNKS_SUPPORTED + png_free_data(read_ptr, read_info_ptr, PNG_FREE_UNKN, -1); +# endif +# ifdef PNG_WRITE_UNKNOWN_CHUNKS_SUPPORTED + png_free_data(write_ptr, write_info_ptr, PNG_FREE_UNKN, -1); +# endif +#endif + + pngtest_debug("Reading and writing end_info data"); + + png_read_end(read_ptr, end_info_ptr); +#ifdef PNG_TEXT_SUPPORTED + { + png_textp text_ptr; + int num_text; + + if (png_get_text(read_ptr, end_info_ptr, &text_ptr, &num_text) > 0) + { + pngtest_debug1("Handling %d iTXt/tEXt/zTXt chunks", num_text); + + pngtest_check_text_support(read_ptr, text_ptr, num_text); + + if (verbose != 0) + { + int i; + + printf("\n"); + for (i=0; i 0) + { + /* We don't really expect to get here because of the setjmp handling + * above, but this is safe. + */ + fprintf(STDERR, "\n %s: %d libpng errors found (%d warnings)", + inname, error_count, warning_count); + + if (strict != 0) + return (1); + } + +# ifdef PNG_WRITE_SUPPORTED + /* If there we no write support nothing was written! */ + else if (unsupported_chunks > 0) + { + fprintf(STDERR, "\n %s: unsupported chunks (%d)%s", + inname, unsupported_chunks, strict ? ": IGNORED --strict!" : ""); + } +# endif + + else if (warning_count > 0) + { + fprintf(STDERR, "\n %s: %d libpng warnings found", + inname, warning_count); + + if (strict != 0) + return (1); + } + + pngtest_debug("Opening files for comparison"); + if ((fpin = fopen(inname, "rb")) == NULL) + { + fprintf(STDERR, "Could not find file %s\n", inname); + return (1); + } + + if ((fpout = fopen(outname, "rb")) == NULL) + { + fprintf(STDERR, "Could not find file %s\n", outname); + FCLOSE(fpin); + return (1); + } + +#ifdef PNG_WRITE_SUPPORTED /* else nothing was written */ + if (interlace_preserved != 0) /* else the files will be changed */ + { + for (;;) + { + static int wrote_question = 0; + png_size_t num_in, num_out; + char inbuf[256], outbuf[256]; + + num_in = fread(inbuf, 1, sizeof inbuf, fpin); + num_out = fread(outbuf, 1, sizeof outbuf, fpout); + + if (num_in != num_out) + { + fprintf(STDERR, "\nFiles %s and %s are of a different size\n", + inname, outname); + + if (wrote_question == 0 && unsupported_chunks == 0) + { + fprintf(STDERR, + " Was %s written with the same maximum IDAT chunk size (%d bytes),", + inname, PNG_ZBUF_SIZE); + fprintf(STDERR, + "\n filtering heuristic (libpng default), compression"); + fprintf(STDERR, + " level (zlib default),\n and zlib version (%s)?\n\n", + ZLIB_VERSION); + wrote_question = 1; + } + + FCLOSE(fpin); + FCLOSE(fpout); + + if (strict != 0 && unsupported_chunks == 0) + return (1); + + else + return (0); + } + + if (num_in == 0) + break; + + if (memcmp(inbuf, outbuf, num_in)) + { + fprintf(STDERR, "\nFiles %s and %s are different\n", inname, + outname); + + if (wrote_question == 0 && unsupported_chunks == 0) + { + fprintf(STDERR, + " Was %s written with the same maximum IDAT chunk size (%d bytes),", + inname, PNG_ZBUF_SIZE); + fprintf(STDERR, + "\n filtering heuristic (libpng default), compression"); + fprintf(STDERR, + " level (zlib default),\n and zlib version (%s)?\n\n", + ZLIB_VERSION); + wrote_question = 1; + } + + FCLOSE(fpin); + FCLOSE(fpout); + + /* NOTE: the unsupported_chunks escape is permitted here because + * unsupported text chunk compression will result in the compression + * mode being changed (to NONE) yet, in the test case, the result + * can be exactly the same size! + */ + if (strict != 0 && unsupported_chunks == 0) + return (1); + + else + return (0); + } + } + } +#endif /* PNG_WRITE_SUPPORTED */ + + FCLOSE(fpin); + FCLOSE(fpout); + + return (0); +} + +/* Input and output filenames */ +#ifdef RISCOS +static PNG_CONST char *inname = "pngtest/png"; +static PNG_CONST char *outname = "pngout/png"; +#else +static PNG_CONST char *inname = "pngtest.png"; +static PNG_CONST char *outname = "pngout.png"; +#endif + +int +main(int argc, char *argv[]) +{ + int multiple = 0; + int ierror = 0; + + fprintf(STDERR, "\n Testing libpng version %s\n", PNG_LIBPNG_VER_STRING); + fprintf(STDERR, " with zlib version %s\n", ZLIB_VERSION); + fprintf(STDERR, "%s", png_get_copyright(NULL)); + /* Show the version of libpng used in building the library */ + fprintf(STDERR, " library (%lu):%s", + (unsigned long)png_access_version_number(), + png_get_header_version(NULL)); + + /* Show the version of libpng used in building the application */ + fprintf(STDERR, " pngtest (%lu):%s", (unsigned long)PNG_LIBPNG_VER, + PNG_HEADER_VERSION_STRING); + + /* Do some consistency checking on the memory allocation settings, I'm + * not sure this matters, but it is nice to know, the first of these + * tests should be impossible because of the way the macros are set + * in pngconf.h + */ +#if defined(MAXSEG_64K) && !defined(PNG_MAX_MALLOC_64K) + fprintf(STDERR, " NOTE: Zlib compiled for max 64k, libpng not\n"); +#endif + /* I think the following can happen. */ +#if !defined(MAXSEG_64K) && defined(PNG_MAX_MALLOC_64K) + fprintf(STDERR, " NOTE: libpng compiled for max 64k, zlib not\n"); +#endif + + if (strcmp(png_libpng_ver, PNG_LIBPNG_VER_STRING)) + { + fprintf(STDERR, + "Warning: versions are different between png.h and png.c\n"); + fprintf(STDERR, " png.h version: %s\n", PNG_LIBPNG_VER_STRING); + fprintf(STDERR, " png.c version: %s\n\n", png_libpng_ver); + ++ierror; + } + + if (argc > 1) + { + if (strcmp(argv[1], "-m") == 0) + { + multiple = 1; + status_dots_requested = 0; + } + + else if (strcmp(argv[1], "-mv") == 0 || + strcmp(argv[1], "-vm") == 0 ) + { + multiple = 1; + verbose = 1; + status_dots_requested = 1; + } + + else if (strcmp(argv[1], "-v") == 0) + { + verbose = 1; + status_dots_requested = 1; + inname = argv[2]; + } + + else if (strcmp(argv[1], "--strict") == 0) + { + status_dots_requested = 0; + verbose = 1; + inname = argv[2]; + strict++; + relaxed = 0; + } + + else if (strcmp(argv[1], "--relaxed") == 0) + { + status_dots_requested = 0; + verbose = 1; + inname = argv[2]; + strict = 0; + relaxed++; + } + + else + { + inname = argv[1]; + status_dots_requested = 0; + } + } + + if (!multiple && argc == 3 + verbose) + outname = argv[2 + verbose]; + + if ((!multiple && argc > 3 + verbose) || (multiple && argc < 2)) + { + fprintf(STDERR, + "usage: %s [infile.png] [outfile.png]\n\t%s -m {infile.png}\n", + argv[0], argv[0]); + fprintf(STDERR, + " reads/writes one PNG file (without -m) or multiple files (-m)\n"); + fprintf(STDERR, + " with -m %s is used as a temporary file\n", outname); + exit(1); + } + + if (multiple != 0) + { + int i; +#if defined(PNG_USER_MEM_SUPPORTED) && PNG_DEBUG + int allocation_now = current_allocation; +#endif + for (i=2; isize, + (unsigned int)pinfo->pointer); + pinfo = pinfo->next; + } + } +#endif + } +#if defined(PNG_USER_MEM_SUPPORTED) && PNG_DEBUG + fprintf(STDERR, " Current memory allocation: %10d bytes\n", + current_allocation); + fprintf(STDERR, " Maximum memory allocation: %10d bytes\n", + maximum_allocation); + fprintf(STDERR, " Total memory allocation: %10d bytes\n", + total_allocation); + fprintf(STDERR, " Number of allocations: %10d\n", + num_allocations); +#endif + } + + else + { + int i; + for (i = 0; i<3; ++i) + { + int kerror; +#if defined(PNG_USER_MEM_SUPPORTED) && PNG_DEBUG + int allocation_now = current_allocation; +#endif + if (i == 1) + status_dots_requested = 1; + + else if (verbose == 0) + status_dots_requested = 0; + + if (i == 0 || verbose == 1 || ierror != 0) + fprintf(STDERR, "\n Testing %s:", inname); + + kerror = test_one_file(inname, outname); + + if (kerror == 0) + { + if (verbose == 1 || i == 2) + { +#ifdef PNG_READ_USER_TRANSFORM_SUPPORTED + int k; +#endif +#ifdef PNG_WRITE_USER_TRANSFORM_SUPPORTED + fprintf(STDERR, "\n PASS (%lu zero samples)\n", + (unsigned long)zero_samples); +#else + fprintf(STDERR, " PASS\n"); +#endif +#ifdef PNG_READ_USER_TRANSFORM_SUPPORTED + for (k = 0; k<256; k++) + if (filters_used[k]) + fprintf(STDERR, " Filter %d was used %lu times\n", + k, (unsigned long)filters_used[k]); +#endif +#ifdef PNG_TIME_RFC1123_SUPPORTED + if (tIME_chunk_present != 0) + fprintf(STDERR, " tIME = %s\n", tIME_string); +#endif /* PNG_TIME_RFC1123_SUPPORTED */ + } + } + + else + { + if (verbose == 0 && i != 2) + fprintf(STDERR, "\n Testing %s:", inname); + + fprintf(STDERR, " FAIL\n"); + ierror += kerror; + } +#if defined(PNG_USER_MEM_SUPPORTED) && PNG_DEBUG + if (allocation_now != current_allocation) + fprintf(STDERR, "MEMORY ERROR: %d bytes lost\n", + current_allocation - allocation_now); + + if (current_allocation != 0) + { + memory_infop pinfo = pinformation; + + fprintf(STDERR, "MEMORY ERROR: %d bytes still allocated\n", + current_allocation); + + while (pinfo != NULL) + { + fprintf(STDERR, " %lu bytes at %x\n", + (unsigned long)pinfo->size, (unsigned int)pinfo->pointer); + pinfo = pinfo->next; + } + } +#endif + } +#if defined(PNG_USER_MEM_SUPPORTED) && PNG_DEBUG + fprintf(STDERR, " Current memory allocation: %10d bytes\n", + current_allocation); + fprintf(STDERR, " Maximum memory allocation: %10d bytes\n", + maximum_allocation); + fprintf(STDERR, " Total memory allocation: %10d bytes\n", + total_allocation); + fprintf(STDERR, " Number of allocations: %10d\n", + num_allocations); +#endif + } + +#ifdef PNGTEST_TIMING + t_stop = (float)clock(); + t_misc += (t_stop - t_start); + t_start = t_stop; + fprintf(STDERR, " CPU time used = %.3f seconds", + (t_misc+t_decode+t_encode)/(float)CLOCKS_PER_SEC); + fprintf(STDERR, " (decoding %.3f,\n", + t_decode/(float)CLOCKS_PER_SEC); + fprintf(STDERR, " encoding %.3f ,", + t_encode/(float)CLOCKS_PER_SEC); + fprintf(STDERR, " other %.3f seconds)\n\n", + t_misc/(float)CLOCKS_PER_SEC); +#endif + + if (ierror == 0) + fprintf(STDERR, " libpng passes test\n"); + + else + fprintf(STDERR, " libpng FAILS test\n"); + + return (int)(ierror != 0); +} +#else +int +main(void) +{ + fprintf(STDERR, + " test ignored because libpng was not built with read support\n"); + /* And skip this test */ + return PNG_LIBPNG_VER < 10600 ? 0 : 77; +} +#endif + +/* Generate a compiler error if there is an old png.h in the search path. */ +typedef png_libpng_version_1_6_12 Your_png_h_is_not_version_1_6_12; diff --git a/png/pngtest.png b/png/pngtest.png new file mode 100644 index 0000000..cb3fef4 Binary files /dev/null and b/png/pngtest.png differ diff --git a/png/pngtrans.c b/png/pngtrans.c new file mode 100644 index 0000000..792e13a --- /dev/null +++ b/png/pngtrans.c @@ -0,0 +1,850 @@ + +/* pngtrans.c - transforms the data in a row (used by both readers and writers) + * + * Last changed in libpng 1.6.11 [June 12, 2014] + * Copyright (c) 1998-2014 Glenn Randers-Pehrson + * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) + * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) + * + * This code is released under the libpng license. + * For conditions of distribution and use, see the disclaimer + * and license in png.h + */ + +#include "pngpriv.h" + +#if defined(PNG_READ_SUPPORTED) || defined(PNG_WRITE_SUPPORTED) + +#if defined(PNG_READ_BGR_SUPPORTED) || defined(PNG_WRITE_BGR_SUPPORTED) +/* Turn on BGR-to-RGB mapping */ +void PNGAPI +png_set_bgr(png_structrp png_ptr) +{ + png_debug(1, "in png_set_bgr"); + + if (png_ptr == NULL) + return; + + png_ptr->transformations |= PNG_BGR; +} +#endif + +#if defined(PNG_READ_SWAP_SUPPORTED) || defined(PNG_WRITE_SWAP_SUPPORTED) +/* Turn on 16 bit byte swapping */ +void PNGAPI +png_set_swap(png_structrp png_ptr) +{ + png_debug(1, "in png_set_swap"); + + if (png_ptr == NULL) + return; + + if (png_ptr->bit_depth == 16) + png_ptr->transformations |= PNG_SWAP_BYTES; +} +#endif + +#if defined(PNG_READ_PACK_SUPPORTED) || defined(PNG_WRITE_PACK_SUPPORTED) +/* Turn on pixel packing */ +void PNGAPI +png_set_packing(png_structrp png_ptr) +{ + png_debug(1, "in png_set_packing"); + + if (png_ptr == NULL) + return; + + if (png_ptr->bit_depth < 8) + { + png_ptr->transformations |= PNG_PACK; +# ifdef PNG_WRITE_SUPPORTED + png_ptr->usr_bit_depth = 8; +# endif + } +} +#endif + +#if defined(PNG_READ_PACKSWAP_SUPPORTED)||defined(PNG_WRITE_PACKSWAP_SUPPORTED) +/* Turn on packed pixel swapping */ +void PNGAPI +png_set_packswap(png_structrp png_ptr) +{ + png_debug(1, "in png_set_packswap"); + + if (png_ptr == NULL) + return; + + if (png_ptr->bit_depth < 8) + png_ptr->transformations |= PNG_PACKSWAP; +} +#endif + +#if defined(PNG_READ_SHIFT_SUPPORTED) || defined(PNG_WRITE_SHIFT_SUPPORTED) +void PNGAPI +png_set_shift(png_structrp png_ptr, png_const_color_8p true_bits) +{ + png_debug(1, "in png_set_shift"); + + if (png_ptr == NULL) + return; + + png_ptr->transformations |= PNG_SHIFT; + png_ptr->shift = *true_bits; +} +#endif + +#if defined(PNG_READ_INTERLACING_SUPPORTED) || \ + defined(PNG_WRITE_INTERLACING_SUPPORTED) +int PNGAPI +png_set_interlace_handling(png_structrp png_ptr) +{ + png_debug(1, "in png_set_interlace handling"); + + if (png_ptr && png_ptr->interlaced) + { + png_ptr->transformations |= PNG_INTERLACE; + return (7); + } + + return (1); +} +#endif + +#if defined(PNG_READ_FILLER_SUPPORTED) || defined(PNG_WRITE_FILLER_SUPPORTED) +/* Add a filler byte on read, or remove a filler or alpha byte on write. + * The filler type has changed in v0.95 to allow future 2-byte fillers + * for 48-bit input data, as well as to avoid problems with some compilers + * that don't like bytes as parameters. + */ +void PNGAPI +png_set_filler(png_structrp png_ptr, png_uint_32 filler, int filler_loc) +{ + png_debug(1, "in png_set_filler"); + + if (png_ptr == NULL) + return; + + /* In libpng 1.6 it is possible to determine whether this is a read or write + * operation and therefore to do more checking here for a valid call. + */ + if (png_ptr->mode & PNG_IS_READ_STRUCT) + { +# ifdef PNG_READ_FILLER_SUPPORTED + /* On read png_set_filler is always valid, regardless of the base PNG + * format, because other transformations can give a format where the + * filler code can execute (basically an 8 or 16-bit component RGB or G + * format.) + * + * NOTE: usr_channels is not used by the read code! (This has led to + * confusion in the past.) The filler is only used in the read code. + */ + png_ptr->filler = (png_uint_16)filler; +# else + png_app_error(png_ptr, "png_set_filler not supported on read"); + PNG_UNUSED(filler) /* not used in the write case */ + return; +# endif + } + + else /* write */ + { +# ifdef PNG_WRITE_FILLER_SUPPORTED + /* On write the usr_channels parameter must be set correctly at the + * start to record the number of channels in the app-supplied data. + */ + switch (png_ptr->color_type) + { + case PNG_COLOR_TYPE_RGB: + png_ptr->usr_channels = 4; + break; + + case PNG_COLOR_TYPE_GRAY: + if (png_ptr->bit_depth >= 8) + { + png_ptr->usr_channels = 2; + break; + } + + else + { + /* There simply isn't any code in libpng to strip out bits + * from bytes when the components are less than a byte in + * size! + */ + png_app_error(png_ptr, + "png_set_filler is invalid for low bit depth gray output"); + return; + } + + default: + png_app_error(png_ptr, + "png_set_filler: inappropriate color type"); + return; + } +# else + png_app_error(png_ptr, "png_set_filler not supported on write"); + return; +# endif + } + + /* Here on success - libpng supports the operation, set the transformation + * and the flag to say where the filler channel is. + */ + png_ptr->transformations |= PNG_FILLER; + + if (filler_loc == PNG_FILLER_AFTER) + png_ptr->flags |= PNG_FLAG_FILLER_AFTER; + + else + png_ptr->flags &= ~PNG_FLAG_FILLER_AFTER; +} + +/* Added to libpng-1.2.7 */ +void PNGAPI +png_set_add_alpha(png_structrp png_ptr, png_uint_32 filler, int filler_loc) +{ + png_debug(1, "in png_set_add_alpha"); + + if (png_ptr == NULL) + return; + + png_set_filler(png_ptr, filler, filler_loc); + /* The above may fail to do anything. */ + if (png_ptr->transformations & PNG_FILLER) + png_ptr->transformations |= PNG_ADD_ALPHA; +} + +#endif + +#if defined(PNG_READ_SWAP_ALPHA_SUPPORTED) || \ + defined(PNG_WRITE_SWAP_ALPHA_SUPPORTED) +void PNGAPI +png_set_swap_alpha(png_structrp png_ptr) +{ + png_debug(1, "in png_set_swap_alpha"); + + if (png_ptr == NULL) + return; + + png_ptr->transformations |= PNG_SWAP_ALPHA; +} +#endif + +#if defined(PNG_READ_INVERT_ALPHA_SUPPORTED) || \ + defined(PNG_WRITE_INVERT_ALPHA_SUPPORTED) +void PNGAPI +png_set_invert_alpha(png_structrp png_ptr) +{ + png_debug(1, "in png_set_invert_alpha"); + + if (png_ptr == NULL) + return; + + png_ptr->transformations |= PNG_INVERT_ALPHA; +} +#endif + +#if defined(PNG_READ_INVERT_SUPPORTED) || defined(PNG_WRITE_INVERT_SUPPORTED) +void PNGAPI +png_set_invert_mono(png_structrp png_ptr) +{ + png_debug(1, "in png_set_invert_mono"); + + if (png_ptr == NULL) + return; + + png_ptr->transformations |= PNG_INVERT_MONO; +} + +/* Invert monochrome grayscale data */ +void /* PRIVATE */ +png_do_invert(png_row_infop row_info, png_bytep row) +{ + png_debug(1, "in png_do_invert"); + + /* This test removed from libpng version 1.0.13 and 1.2.0: + * if (row_info->bit_depth == 1 && + */ + if (row_info->color_type == PNG_COLOR_TYPE_GRAY) + { + png_bytep rp = row; + png_size_t i; + png_size_t istop = row_info->rowbytes; + + for (i = 0; i < istop; i++) + { + *rp = (png_byte)(~(*rp)); + rp++; + } + } + + else if (row_info->color_type == PNG_COLOR_TYPE_GRAY_ALPHA && + row_info->bit_depth == 8) + { + png_bytep rp = row; + png_size_t i; + png_size_t istop = row_info->rowbytes; + + for (i = 0; i < istop; i += 2) + { + *rp = (png_byte)(~(*rp)); + rp += 2; + } + } + +#ifdef PNG_16BIT_SUPPORTED + else if (row_info->color_type == PNG_COLOR_TYPE_GRAY_ALPHA && + row_info->bit_depth == 16) + { + png_bytep rp = row; + png_size_t i; + png_size_t istop = row_info->rowbytes; + + for (i = 0; i < istop; i += 4) + { + *rp = (png_byte)(~(*rp)); + *(rp + 1) = (png_byte)(~(*(rp + 1))); + rp += 4; + } + } +#endif +} +#endif + +#ifdef PNG_16BIT_SUPPORTED +#if defined(PNG_READ_SWAP_SUPPORTED) || defined(PNG_WRITE_SWAP_SUPPORTED) +/* Swaps byte order on 16 bit depth images */ +void /* PRIVATE */ +png_do_swap(png_row_infop row_info, png_bytep row) +{ + png_debug(1, "in png_do_swap"); + + if (row_info->bit_depth == 16) + { + png_bytep rp = row; + png_uint_32 i; + png_uint_32 istop= row_info->width * row_info->channels; + + for (i = 0; i < istop; i++, rp += 2) + { +#ifdef PNG_BUILTIN_BSWAP16_SUPPORTED + /* Feature added to libpng-1.6.11 for testing purposes, not + * enabled by default. + */ + *(png_uint_16*)rp = __builtin_bswap16(*(png_uint_16*)rp); +#else + png_byte t = *rp; + *rp = *(rp + 1); + *(rp + 1) = t; +#endif + } + } +} +#endif +#endif + +#if defined(PNG_READ_PACKSWAP_SUPPORTED)||defined(PNG_WRITE_PACKSWAP_SUPPORTED) +static PNG_CONST png_byte onebppswaptable[256] = { + 0x00, 0x80, 0x40, 0xC0, 0x20, 0xA0, 0x60, 0xE0, + 0x10, 0x90, 0x50, 0xD0, 0x30, 0xB0, 0x70, 0xF0, + 0x08, 0x88, 0x48, 0xC8, 0x28, 0xA8, 0x68, 0xE8, + 0x18, 0x98, 0x58, 0xD8, 0x38, 0xB8, 0x78, 0xF8, + 0x04, 0x84, 0x44, 0xC4, 0x24, 0xA4, 0x64, 0xE4, + 0x14, 0x94, 0x54, 0xD4, 0x34, 0xB4, 0x74, 0xF4, + 0x0C, 0x8C, 0x4C, 0xCC, 0x2C, 0xAC, 0x6C, 0xEC, + 0x1C, 0x9C, 0x5C, 0xDC, 0x3C, 0xBC, 0x7C, 0xFC, + 0x02, 0x82, 0x42, 0xC2, 0x22, 0xA2, 0x62, 0xE2, + 0x12, 0x92, 0x52, 0xD2, 0x32, 0xB2, 0x72, 0xF2, + 0x0A, 0x8A, 0x4A, 0xCA, 0x2A, 0xAA, 0x6A, 0xEA, + 0x1A, 0x9A, 0x5A, 0xDA, 0x3A, 0xBA, 0x7A, 0xFA, + 0x06, 0x86, 0x46, 0xC6, 0x26, 0xA6, 0x66, 0xE6, + 0x16, 0x96, 0x56, 0xD6, 0x36, 0xB6, 0x76, 0xF6, + 0x0E, 0x8E, 0x4E, 0xCE, 0x2E, 0xAE, 0x6E, 0xEE, + 0x1E, 0x9E, 0x5E, 0xDE, 0x3E, 0xBE, 0x7E, 0xFE, + 0x01, 0x81, 0x41, 0xC1, 0x21, 0xA1, 0x61, 0xE1, + 0x11, 0x91, 0x51, 0xD1, 0x31, 0xB1, 0x71, 0xF1, + 0x09, 0x89, 0x49, 0xC9, 0x29, 0xA9, 0x69, 0xE9, + 0x19, 0x99, 0x59, 0xD9, 0x39, 0xB9, 0x79, 0xF9, + 0x05, 0x85, 0x45, 0xC5, 0x25, 0xA5, 0x65, 0xE5, + 0x15, 0x95, 0x55, 0xD5, 0x35, 0xB5, 0x75, 0xF5, + 0x0D, 0x8D, 0x4D, 0xCD, 0x2D, 0xAD, 0x6D, 0xED, + 0x1D, 0x9D, 0x5D, 0xDD, 0x3D, 0xBD, 0x7D, 0xFD, + 0x03, 0x83, 0x43, 0xC3, 0x23, 0xA3, 0x63, 0xE3, + 0x13, 0x93, 0x53, 0xD3, 0x33, 0xB3, 0x73, 0xF3, + 0x0B, 0x8B, 0x4B, 0xCB, 0x2B, 0xAB, 0x6B, 0xEB, + 0x1B, 0x9B, 0x5B, 0xDB, 0x3B, 0xBB, 0x7B, 0xFB, + 0x07, 0x87, 0x47, 0xC7, 0x27, 0xA7, 0x67, 0xE7, + 0x17, 0x97, 0x57, 0xD7, 0x37, 0xB7, 0x77, 0xF7, + 0x0F, 0x8F, 0x4F, 0xCF, 0x2F, 0xAF, 0x6F, 0xEF, + 0x1F, 0x9F, 0x5F, 0xDF, 0x3F, 0xBF, 0x7F, 0xFF +}; + +static PNG_CONST png_byte twobppswaptable[256] = { + 0x00, 0x40, 0x80, 0xC0, 0x10, 0x50, 0x90, 0xD0, + 0x20, 0x60, 0xA0, 0xE0, 0x30, 0x70, 0xB0, 0xF0, + 0x04, 0x44, 0x84, 0xC4, 0x14, 0x54, 0x94, 0xD4, + 0x24, 0x64, 0xA4, 0xE4, 0x34, 0x74, 0xB4, 0xF4, + 0x08, 0x48, 0x88, 0xC8, 0x18, 0x58, 0x98, 0xD8, + 0x28, 0x68, 0xA8, 0xE8, 0x38, 0x78, 0xB8, 0xF8, + 0x0C, 0x4C, 0x8C, 0xCC, 0x1C, 0x5C, 0x9C, 0xDC, + 0x2C, 0x6C, 0xAC, 0xEC, 0x3C, 0x7C, 0xBC, 0xFC, + 0x01, 0x41, 0x81, 0xC1, 0x11, 0x51, 0x91, 0xD1, + 0x21, 0x61, 0xA1, 0xE1, 0x31, 0x71, 0xB1, 0xF1, + 0x05, 0x45, 0x85, 0xC5, 0x15, 0x55, 0x95, 0xD5, + 0x25, 0x65, 0xA5, 0xE5, 0x35, 0x75, 0xB5, 0xF5, + 0x09, 0x49, 0x89, 0xC9, 0x19, 0x59, 0x99, 0xD9, + 0x29, 0x69, 0xA9, 0xE9, 0x39, 0x79, 0xB9, 0xF9, + 0x0D, 0x4D, 0x8D, 0xCD, 0x1D, 0x5D, 0x9D, 0xDD, + 0x2D, 0x6D, 0xAD, 0xED, 0x3D, 0x7D, 0xBD, 0xFD, + 0x02, 0x42, 0x82, 0xC2, 0x12, 0x52, 0x92, 0xD2, + 0x22, 0x62, 0xA2, 0xE2, 0x32, 0x72, 0xB2, 0xF2, + 0x06, 0x46, 0x86, 0xC6, 0x16, 0x56, 0x96, 0xD6, + 0x26, 0x66, 0xA6, 0xE6, 0x36, 0x76, 0xB6, 0xF6, + 0x0A, 0x4A, 0x8A, 0xCA, 0x1A, 0x5A, 0x9A, 0xDA, + 0x2A, 0x6A, 0xAA, 0xEA, 0x3A, 0x7A, 0xBA, 0xFA, + 0x0E, 0x4E, 0x8E, 0xCE, 0x1E, 0x5E, 0x9E, 0xDE, + 0x2E, 0x6E, 0xAE, 0xEE, 0x3E, 0x7E, 0xBE, 0xFE, + 0x03, 0x43, 0x83, 0xC3, 0x13, 0x53, 0x93, 0xD3, + 0x23, 0x63, 0xA3, 0xE3, 0x33, 0x73, 0xB3, 0xF3, + 0x07, 0x47, 0x87, 0xC7, 0x17, 0x57, 0x97, 0xD7, + 0x27, 0x67, 0xA7, 0xE7, 0x37, 0x77, 0xB7, 0xF7, + 0x0B, 0x4B, 0x8B, 0xCB, 0x1B, 0x5B, 0x9B, 0xDB, + 0x2B, 0x6B, 0xAB, 0xEB, 0x3B, 0x7B, 0xBB, 0xFB, + 0x0F, 0x4F, 0x8F, 0xCF, 0x1F, 0x5F, 0x9F, 0xDF, + 0x2F, 0x6F, 0xAF, 0xEF, 0x3F, 0x7F, 0xBF, 0xFF +}; + +static PNG_CONST png_byte fourbppswaptable[256] = { + 0x00, 0x10, 0x20, 0x30, 0x40, 0x50, 0x60, 0x70, + 0x80, 0x90, 0xA0, 0xB0, 0xC0, 0xD0, 0xE0, 0xF0, + 0x01, 0x11, 0x21, 0x31, 0x41, 0x51, 0x61, 0x71, + 0x81, 0x91, 0xA1, 0xB1, 0xC1, 0xD1, 0xE1, 0xF1, + 0x02, 0x12, 0x22, 0x32, 0x42, 0x52, 0x62, 0x72, + 0x82, 0x92, 0xA2, 0xB2, 0xC2, 0xD2, 0xE2, 0xF2, + 0x03, 0x13, 0x23, 0x33, 0x43, 0x53, 0x63, 0x73, + 0x83, 0x93, 0xA3, 0xB3, 0xC3, 0xD3, 0xE3, 0xF3, + 0x04, 0x14, 0x24, 0x34, 0x44, 0x54, 0x64, 0x74, + 0x84, 0x94, 0xA4, 0xB4, 0xC4, 0xD4, 0xE4, 0xF4, + 0x05, 0x15, 0x25, 0x35, 0x45, 0x55, 0x65, 0x75, + 0x85, 0x95, 0xA5, 0xB5, 0xC5, 0xD5, 0xE5, 0xF5, + 0x06, 0x16, 0x26, 0x36, 0x46, 0x56, 0x66, 0x76, + 0x86, 0x96, 0xA6, 0xB6, 0xC6, 0xD6, 0xE6, 0xF6, + 0x07, 0x17, 0x27, 0x37, 0x47, 0x57, 0x67, 0x77, + 0x87, 0x97, 0xA7, 0xB7, 0xC7, 0xD7, 0xE7, 0xF7, + 0x08, 0x18, 0x28, 0x38, 0x48, 0x58, 0x68, 0x78, + 0x88, 0x98, 0xA8, 0xB8, 0xC8, 0xD8, 0xE8, 0xF8, + 0x09, 0x19, 0x29, 0x39, 0x49, 0x59, 0x69, 0x79, + 0x89, 0x99, 0xA9, 0xB9, 0xC9, 0xD9, 0xE9, 0xF9, + 0x0A, 0x1A, 0x2A, 0x3A, 0x4A, 0x5A, 0x6A, 0x7A, + 0x8A, 0x9A, 0xAA, 0xBA, 0xCA, 0xDA, 0xEA, 0xFA, + 0x0B, 0x1B, 0x2B, 0x3B, 0x4B, 0x5B, 0x6B, 0x7B, + 0x8B, 0x9B, 0xAB, 0xBB, 0xCB, 0xDB, 0xEB, 0xFB, + 0x0C, 0x1C, 0x2C, 0x3C, 0x4C, 0x5C, 0x6C, 0x7C, + 0x8C, 0x9C, 0xAC, 0xBC, 0xCC, 0xDC, 0xEC, 0xFC, + 0x0D, 0x1D, 0x2D, 0x3D, 0x4D, 0x5D, 0x6D, 0x7D, + 0x8D, 0x9D, 0xAD, 0xBD, 0xCD, 0xDD, 0xED, 0xFD, + 0x0E, 0x1E, 0x2E, 0x3E, 0x4E, 0x5E, 0x6E, 0x7E, + 0x8E, 0x9E, 0xAE, 0xBE, 0xCE, 0xDE, 0xEE, 0xFE, + 0x0F, 0x1F, 0x2F, 0x3F, 0x4F, 0x5F, 0x6F, 0x7F, + 0x8F, 0x9F, 0xAF, 0xBF, 0xCF, 0xDF, 0xEF, 0xFF +}; + +/* Swaps pixel packing order within bytes */ +void /* PRIVATE */ +png_do_packswap(png_row_infop row_info, png_bytep row) +{ + png_debug(1, "in png_do_packswap"); + + if (row_info->bit_depth < 8) + { + png_bytep rp; + png_const_bytep end, table; + + end = row + row_info->rowbytes; + + if (row_info->bit_depth == 1) + table = onebppswaptable; + + else if (row_info->bit_depth == 2) + table = twobppswaptable; + + else if (row_info->bit_depth == 4) + table = fourbppswaptable; + + else + return; + + for (rp = row; rp < end; rp++) + *rp = table[*rp]; + } +} +#endif /* PNG_READ_PACKSWAP_SUPPORTED or PNG_WRITE_PACKSWAP_SUPPORTED */ + +#if defined(PNG_WRITE_FILLER_SUPPORTED) || \ + defined(PNG_READ_STRIP_ALPHA_SUPPORTED) +/* Remove a channel - this used to be 'png_do_strip_filler' but it used a + * somewhat weird combination of flags to determine what to do. All the calls + * to png_do_strip_filler are changed in 1.5.2 to call this instead with the + * correct arguments. + * + * The routine isn't general - the channel must be the channel at the start or + * end (not in the middle) of each pixel. + */ +void /* PRIVATE */ +png_do_strip_channel(png_row_infop row_info, png_bytep row, int at_start) +{ + png_bytep sp = row; /* source pointer */ + png_bytep dp = row; /* destination pointer */ + png_bytep ep = row + row_info->rowbytes; /* One beyond end of row */ + + /* At the start sp will point to the first byte to copy and dp to where + * it is copied to. ep always points just beyond the end of the row, so + * the loop simply copies (channels-1) channels until sp reaches ep. + * + * at_start: 0 -- convert AG, XG, ARGB, XRGB, AAGG, XXGG, etc. + * nonzero -- convert GA, GX, RGBA, RGBX, GGAA, RRGGBBXX, etc. + */ + + /* GA, GX, XG cases */ + if (row_info->channels == 2) + { + if (row_info->bit_depth == 8) + { + if (at_start != 0) /* Skip initial filler */ + ++sp; + else /* Skip initial channel and, for sp, the filler */ + sp += 2, ++dp; + + /* For a 1 pixel wide image there is nothing to do */ + while (sp < ep) + *dp++ = *sp, sp += 2; + + row_info->pixel_depth = 8; + } + + else if (row_info->bit_depth == 16) + { + if (at_start != 0) /* Skip initial filler */ + sp += 2; + else /* Skip initial channel and, for sp, the filler */ + sp += 4, dp += 2; + + while (sp < ep) + *dp++ = *sp++, *dp++ = *sp, sp += 3; + + row_info->pixel_depth = 16; + } + + else + return; /* bad bit depth */ + + row_info->channels = 1; + + /* Finally fix the color type if it records an alpha channel */ + if (row_info->color_type == PNG_COLOR_TYPE_GRAY_ALPHA) + row_info->color_type = PNG_COLOR_TYPE_GRAY; + } + + /* RGBA, RGBX, XRGB cases */ + else if (row_info->channels == 4) + { + if (row_info->bit_depth == 8) + { + if (at_start != 0) /* Skip initial filler */ + ++sp; + else /* Skip initial channels and, for sp, the filler */ + sp += 4, dp += 3; + + /* Note that the loop adds 3 to dp and 4 to sp each time. */ + while (sp < ep) + *dp++ = *sp++, *dp++ = *sp++, *dp++ = *sp, sp += 2; + + row_info->pixel_depth = 24; + } + + else if (row_info->bit_depth == 16) + { + if (at_start != 0) /* Skip initial filler */ + sp += 2; + else /* Skip initial channels and, for sp, the filler */ + sp += 8, dp += 6; + + while (sp < ep) + { + /* Copy 6 bytes, skip 2 */ + *dp++ = *sp++, *dp++ = *sp++; + *dp++ = *sp++, *dp++ = *sp++; + *dp++ = *sp++, *dp++ = *sp, sp += 3; + } + + row_info->pixel_depth = 48; + } + + else + return; /* bad bit depth */ + + row_info->channels = 3; + + /* Finally fix the color type if it records an alpha channel */ + if (row_info->color_type == PNG_COLOR_TYPE_RGB_ALPHA) + row_info->color_type = PNG_COLOR_TYPE_RGB; + } + + else + return; /* The filler channel has gone already */ + + /* Fix the rowbytes value. */ + row_info->rowbytes = dp-row; +} +#endif + +#if defined(PNG_READ_BGR_SUPPORTED) || defined(PNG_WRITE_BGR_SUPPORTED) +/* Swaps red and blue bytes within a pixel */ +void /* PRIVATE */ +png_do_bgr(png_row_infop row_info, png_bytep row) +{ + png_debug(1, "in png_do_bgr"); + + if ((row_info->color_type & PNG_COLOR_MASK_COLOR)) + { + png_uint_32 row_width = row_info->width; + if (row_info->bit_depth == 8) + { + if (row_info->color_type == PNG_COLOR_TYPE_RGB) + { + png_bytep rp; + png_uint_32 i; + + for (i = 0, rp = row; i < row_width; i++, rp += 3) + { + png_byte save = *rp; + *rp = *(rp + 2); + *(rp + 2) = save; + } + } + + else if (row_info->color_type == PNG_COLOR_TYPE_RGB_ALPHA) + { + png_bytep rp; + png_uint_32 i; + + for (i = 0, rp = row; i < row_width; i++, rp += 4) + { + png_byte save = *rp; + *rp = *(rp + 2); + *(rp + 2) = save; + } + } + } + +#ifdef PNG_16BIT_SUPPORTED + else if (row_info->bit_depth == 16) + { + if (row_info->color_type == PNG_COLOR_TYPE_RGB) + { + png_bytep rp; + png_uint_32 i; + + for (i = 0, rp = row; i < row_width; i++, rp += 6) + { + png_byte save = *rp; + *rp = *(rp + 4); + *(rp + 4) = save; + save = *(rp + 1); + *(rp + 1) = *(rp + 5); + *(rp + 5) = save; + } + } + + else if (row_info->color_type == PNG_COLOR_TYPE_RGB_ALPHA) + { + png_bytep rp; + png_uint_32 i; + + for (i = 0, rp = row; i < row_width; i++, rp += 8) + { + png_byte save = *rp; + *rp = *(rp + 4); + *(rp + 4) = save; + save = *(rp + 1); + *(rp + 1) = *(rp + 5); + *(rp + 5) = save; + } + } + } +#endif + } +} +#endif /* PNG_READ_BGR_SUPPORTED or PNG_WRITE_BGR_SUPPORTED */ + +#if defined(PNG_READ_CHECK_FOR_INVALID_INDEX_SUPPORTED) || \ + defined(PNG_WRITE_CHECK_FOR_INVALID_INDEX_SUPPORTED) +/* Added at libpng-1.5.10 */ +void /* PRIVATE */ +png_do_check_palette_indexes(png_structrp png_ptr, png_row_infop row_info) +{ + if (png_ptr->num_palette < (1 << row_info->bit_depth) && + png_ptr->num_palette > 0) /* num_palette can be 0 in MNG files */ + { + /* Calculations moved outside switch in an attempt to stop different + * compiler warnings. 'padding' is in *bits* within the last byte, it is + * an 'int' because pixel_depth becomes an 'int' in the expression below, + * and this calculation is used because it avoids warnings that other + * forms produced on either GCC or MSVC. + */ + int padding = (-row_info->pixel_depth * row_info->width) & 7; + png_bytep rp = png_ptr->row_buf + row_info->rowbytes; + + switch (row_info->bit_depth) + { + case 1: + { + /* in this case, all bytes must be 0 so we don't need + * to unpack the pixels except for the rightmost one. + */ + for (; rp > png_ptr->row_buf; rp--) + { + if (*rp >> padding != 0) + png_ptr->num_palette_max = 1; + padding = 0; + } + + break; + } + + case 2: + { + for (; rp > png_ptr->row_buf; rp--) + { + int i = ((*rp >> padding) & 0x03); + + if (i > png_ptr->num_palette_max) + png_ptr->num_palette_max = i; + + i = (((*rp >> padding) >> 2) & 0x03); + + if (i > png_ptr->num_palette_max) + png_ptr->num_palette_max = i; + + i = (((*rp >> padding) >> 4) & 0x03); + + if (i > png_ptr->num_palette_max) + png_ptr->num_palette_max = i; + + i = (((*rp >> padding) >> 6) & 0x03); + + if (i > png_ptr->num_palette_max) + png_ptr->num_palette_max = i; + + padding = 0; + } + + break; + } + + case 4: + { + for (; rp > png_ptr->row_buf; rp--) + { + int i = ((*rp >> padding) & 0x0f); + + if (i > png_ptr->num_palette_max) + png_ptr->num_palette_max = i; + + i = (((*rp >> padding) >> 4) & 0x0f); + + if (i > png_ptr->num_palette_max) + png_ptr->num_palette_max = i; + + padding = 0; + } + + break; + } + + case 8: + { + for (; rp > png_ptr->row_buf; rp--) + { + if (*rp > png_ptr->num_palette_max) + png_ptr->num_palette_max = (int) *rp; + } + + break; + } + + default: + break; + } + } +} +#endif /* PNG_CHECK_FOR_INVALID_INDEX_SUPPORTED */ + +#if defined(PNG_READ_USER_TRANSFORM_SUPPORTED) || \ + defined(PNG_WRITE_USER_TRANSFORM_SUPPORTED) +#ifdef PNG_USER_TRANSFORM_PTR_SUPPORTED +void PNGAPI +png_set_user_transform_info(png_structrp png_ptr, png_voidp + user_transform_ptr, int user_transform_depth, int user_transform_channels) +{ + png_debug(1, "in png_set_user_transform_info"); + + if (png_ptr == NULL) + return; + +#ifdef PNG_READ_USER_TRANSFORM_SUPPORTED + if ((png_ptr->mode & PNG_IS_READ_STRUCT) != 0 && + (png_ptr->flags & PNG_FLAG_ROW_INIT) != 0) + { + png_app_error(png_ptr, + "info change after png_start_read_image or png_read_update_info"); + return; + } +#endif + + png_ptr->user_transform_ptr = user_transform_ptr; + png_ptr->user_transform_depth = (png_byte)user_transform_depth; + png_ptr->user_transform_channels = (png_byte)user_transform_channels; +} +#endif + +/* This function returns a pointer to the user_transform_ptr associated with + * the user transform functions. The application should free any memory + * associated with this pointer before png_write_destroy and png_read_destroy + * are called. + */ +#ifdef PNG_USER_TRANSFORM_PTR_SUPPORTED +png_voidp PNGAPI +png_get_user_transform_ptr(png_const_structrp png_ptr) +{ + if (png_ptr == NULL) + return (NULL); + + return png_ptr->user_transform_ptr; +} +#endif + +#ifdef PNG_USER_TRANSFORM_INFO_SUPPORTED +png_uint_32 PNGAPI +png_get_current_row_number(png_const_structrp png_ptr) +{ + /* See the comments in png.h - this is the sub-image row when reading and + * interlaced image. + */ + if (png_ptr != NULL) + return png_ptr->row_number; + + return PNG_UINT_32_MAX; /* help the app not to fail silently */ +} + +png_byte PNGAPI +png_get_current_pass_number(png_const_structrp png_ptr) +{ + if (png_ptr != NULL) + return png_ptr->pass; + return 8; /* invalid */ +} +#endif /* PNG_USER_TRANSFORM_INFO_SUPPORTED */ +#endif /* PNG_READ_USER_TRANSFORM_SUPPORTED || + PNG_WRITE_USER_TRANSFORM_SUPPORTED */ +#endif /* PNG_READ_SUPPORTED || PNG_WRITE_SUPPORTED */ diff --git a/png/pngwio.c b/png/pngwio.c new file mode 100644 index 0000000..1b525f9 --- /dev/null +++ b/png/pngwio.c @@ -0,0 +1,168 @@ + +/* pngwio.c - functions for data output + * + * Last changed in libpng 1.6.9 [February 6, 2014] + * Copyright (c) 1998-2014 Glenn Randers-Pehrson + * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) + * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) + * + * This code is released under the libpng license. + * For conditions of distribution and use, see the disclaimer + * and license in png.h + * + * This file provides a location for all output. Users who need + * special handling are expected to write functions that have the same + * arguments as these and perform similar functions, but that possibly + * use different output methods. Note that you shouldn't change these + * functions, but rather write replacement functions and then change + * them at run time with png_set_write_fn(...). + */ + +#include "pngpriv.h" + +#ifdef PNG_WRITE_SUPPORTED + +/* Write the data to whatever output you are using. The default routine + * writes to a file pointer. Note that this routine sometimes gets called + * with very small lengths, so you should implement some kind of simple + * buffering if you are using unbuffered writes. This should never be asked + * to write more than 64K on a 16 bit machine. + */ + +void /* PRIVATE */ +png_write_data(png_structrp png_ptr, png_const_bytep data, png_size_t length) +{ + /* NOTE: write_data_fn must not change the buffer! */ + if (png_ptr->write_data_fn != NULL ) + (*(png_ptr->write_data_fn))(png_ptr, png_constcast(png_bytep,data), + length); + + else + png_error(png_ptr, "Call to NULL write function"); +} + +#ifdef PNG_STDIO_SUPPORTED +/* This is the function that does the actual writing of data. If you are + * not writing to a standard C stream, you should create a replacement + * write_data function and use it at run time with png_set_write_fn(), rather + * than changing the library. + */ +void PNGCBAPI +png_default_write_data(png_structp png_ptr, png_bytep data, png_size_t length) +{ + png_size_t check; + + if (png_ptr == NULL) + return; + + check = fwrite(data, 1, length, (png_FILE_p)(png_ptr->io_ptr)); + + if (check != length) + png_error(png_ptr, "Write Error"); +} +#endif + +/* This function is called to output any data pending writing (normally + * to disk). After png_flush is called, there should be no data pending + * writing in any buffers. + */ +#ifdef PNG_WRITE_FLUSH_SUPPORTED +void /* PRIVATE */ +png_flush(png_structrp png_ptr) +{ + if (png_ptr->output_flush_fn != NULL) + (*(png_ptr->output_flush_fn))(png_ptr); +} + +# ifdef PNG_STDIO_SUPPORTED +void PNGCBAPI +png_default_flush(png_structp png_ptr) +{ + png_FILE_p io_ptr; + + if (png_ptr == NULL) + return; + + io_ptr = png_voidcast(png_FILE_p, (png_ptr->io_ptr)); + fflush(io_ptr); +} +# endif +#endif + +/* This function allows the application to supply new output functions for + * libpng if standard C streams aren't being used. + * + * This function takes as its arguments: + * png_ptr - pointer to a png output data structure + * io_ptr - pointer to user supplied structure containing info about + * the output functions. May be NULL. + * write_data_fn - pointer to a new output function that takes as its + * arguments a pointer to a png_struct, a pointer to + * data to be written, and a 32-bit unsigned int that is + * the number of bytes to be written. The new write + * function should call png_error(png_ptr, "Error msg") + * to exit and output any fatal error messages. May be + * NULL, in which case libpng's default function will + * be used. + * flush_data_fn - pointer to a new flush function that takes as its + * arguments a pointer to a png_struct. After a call to + * the flush function, there should be no data in any buffers + * or pending transmission. If the output method doesn't do + * any buffering of output, a function prototype must still be + * supplied although it doesn't have to do anything. If + * PNG_WRITE_FLUSH_SUPPORTED is not defined at libpng compile + * time, output_flush_fn will be ignored, although it must be + * supplied for compatibility. May be NULL, in which case + * libpng's default function will be used, if + * PNG_WRITE_FLUSH_SUPPORTED is defined. This is not + * a good idea if io_ptr does not point to a standard + * *FILE structure. + */ +void PNGAPI +png_set_write_fn(png_structrp png_ptr, png_voidp io_ptr, + png_rw_ptr write_data_fn, png_flush_ptr output_flush_fn) +{ + if (png_ptr == NULL) + return; + + png_ptr->io_ptr = io_ptr; + +#ifdef PNG_STDIO_SUPPORTED + if (write_data_fn != NULL) + png_ptr->write_data_fn = write_data_fn; + + else + png_ptr->write_data_fn = png_default_write_data; +#else + png_ptr->write_data_fn = write_data_fn; +#endif + +#ifdef PNG_WRITE_FLUSH_SUPPORTED +# ifdef PNG_STDIO_SUPPORTED + + if (output_flush_fn != NULL) + png_ptr->output_flush_fn = output_flush_fn; + + else + png_ptr->output_flush_fn = png_default_flush; + +# else + png_ptr->output_flush_fn = output_flush_fn; +# endif +#else + PNG_UNUSED(output_flush_fn) +#endif /* PNG_WRITE_FLUSH_SUPPORTED */ + +#ifdef PNG_READ_SUPPORTED + /* It is an error to read while writing a png file */ + if (png_ptr->read_data_fn != NULL) + { + png_ptr->read_data_fn = NULL; + + png_warning(png_ptr, + "Can't set both read_data_fn and write_data_fn in the" + " same structure"); + } +#endif +} +#endif /* PNG_WRITE_SUPPORTED */ diff --git a/png/pngwrite.c b/png/pngwrite.c new file mode 100644 index 0000000..7087d08 --- /dev/null +++ b/png/pngwrite.c @@ -0,0 +1,2437 @@ + +/* pngwrite.c - general routines to write a PNG file + * + * Last changed in libpng 1.6.11 [June 12, 2014] + * Copyright (c) 1998-2014 Glenn Randers-Pehrson + * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) + * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) + * + * This code is released under the libpng license. + * For conditions of distribution and use, see the disclaimer + * and license in png.h + */ + +#include "pngpriv.h" +#if defined(PNG_SIMPLIFIED_WRITE_SUPPORTED) && defined(PNG_STDIO_SUPPORTED) +# include +#endif + +#ifdef PNG_WRITE_SUPPORTED + +#ifdef PNG_WRITE_UNKNOWN_CHUNKS_SUPPORTED +/* Write out all the unknown chunks for the current given location */ +static void +write_unknown_chunks(png_structrp png_ptr, png_const_inforp info_ptr, + unsigned int where) +{ + if (info_ptr->unknown_chunks_num) + { + png_const_unknown_chunkp up; + + png_debug(5, "writing extra chunks"); + + for (up = info_ptr->unknown_chunks; + up < info_ptr->unknown_chunks + info_ptr->unknown_chunks_num; + ++up) + if (up->location & where) + { + /* If per-chunk unknown chunk handling is enabled use it, otherwise + * just write the chunks the application has set. + */ +#ifdef PNG_SET_UNKNOWN_CHUNKS_SUPPORTED + int keep = png_handle_as_unknown(png_ptr, up->name); + + /* NOTE: this code is radically different from the read side in the + * matter of handling an ancillary unknown chunk. In the read side + * the default behavior is to discard it, in the code below the default + * behavior is to write it. Critical chunks are, however, only + * written if explicitly listed or if the default is set to write all + * unknown chunks. + * + * The default handling is also slightly weird - it is not possible to + * stop the writing of all unsafe-to-copy chunks! + * + * TODO: REVIEW: this would seem to be a bug. + */ + if (keep != PNG_HANDLE_CHUNK_NEVER && + ((up->name[3] & 0x20) /* safe-to-copy overrides everything */ || + keep == PNG_HANDLE_CHUNK_ALWAYS || + (keep == PNG_HANDLE_CHUNK_AS_DEFAULT && + png_ptr->unknown_default == PNG_HANDLE_CHUNK_ALWAYS))) +#endif + { + /* TODO: review, what is wrong with a zero length unknown chunk? */ + if (up->size == 0) + png_warning(png_ptr, "Writing zero-length unknown chunk"); + + png_write_chunk(png_ptr, up->name, up->data, up->size); + } + } + } +} +#endif /* PNG_WRITE_UNKNOWN_CHUNKS_SUPPORTED */ + +/* Writes all the PNG information. This is the suggested way to use the + * library. If you have a new chunk to add, make a function to write it, + * and put it in the correct location here. If you want the chunk written + * after the image data, put it in png_write_end(). I strongly encourage + * you to supply a PNG_INFO_ flag, and check info_ptr->valid before writing + * the chunk, as that will keep the code from breaking if you want to just + * write a plain PNG file. If you have long comments, I suggest writing + * them in png_write_end(), and compressing them. + */ +void PNGAPI +png_write_info_before_PLTE(png_structrp png_ptr, png_const_inforp info_ptr) +{ + png_debug(1, "in png_write_info_before_PLTE"); + + if (png_ptr == NULL || info_ptr == NULL) + return; + + if (!(png_ptr->mode & PNG_WROTE_INFO_BEFORE_PLTE)) + { + /* Write PNG signature */ + png_write_sig(png_ptr); + +#ifdef PNG_MNG_FEATURES_SUPPORTED + if ((png_ptr->mode&PNG_HAVE_PNG_SIGNATURE) && \ + (png_ptr->mng_features_permitted)) + { + png_warning(png_ptr, "MNG features are not allowed in a PNG datastream"); + png_ptr->mng_features_permitted = 0; + } +#endif + + /* Write IHDR information. */ + png_write_IHDR(png_ptr, info_ptr->width, info_ptr->height, + info_ptr->bit_depth, info_ptr->color_type, info_ptr->compression_type, + info_ptr->filter_type, +#ifdef PNG_WRITE_INTERLACING_SUPPORTED + info_ptr->interlace_type +#else + 0 +#endif + ); + + /* The rest of these check to see if the valid field has the appropriate + * flag set, and if it does, writes the chunk. + * + * 1.6.0: COLORSPACE support controls the writing of these chunks too, and + * the chunks will be written if the WRITE routine is there and information + * is available in the COLORSPACE. (See png_colorspace_sync_info in png.c + * for where the valid flags get set.) + * + * Under certain circumstances the colorspace can be invalidated without + * syncing the info_struct 'valid' flags; this happens if libpng detects and + * error and calls png_error while the color space is being set, yet the + * application continues writing the PNG. So check the 'invalid' flag here + * too. + */ +#ifdef PNG_GAMMA_SUPPORTED +# ifdef PNG_WRITE_gAMA_SUPPORTED + if (!(info_ptr->colorspace.flags & PNG_COLORSPACE_INVALID) && + (info_ptr->colorspace.flags & PNG_COLORSPACE_FROM_gAMA) && + (info_ptr->valid & PNG_INFO_gAMA)) + png_write_gAMA_fixed(png_ptr, info_ptr->colorspace.gamma); +# endif +#endif + +#ifdef PNG_COLORSPACE_SUPPORTED + /* Write only one of sRGB or an ICC profile. If a profile was supplied + * and it matches one of the known sRGB ones issue a warning. + */ +# ifdef PNG_WRITE_iCCP_SUPPORTED + if (!(info_ptr->colorspace.flags & PNG_COLORSPACE_INVALID) && + (info_ptr->valid & PNG_INFO_iCCP)) + { +# ifdef PNG_WRITE_sRGB_SUPPORTED + if (info_ptr->valid & PNG_INFO_sRGB) + png_app_warning(png_ptr, + "profile matches sRGB but writing iCCP instead"); +# endif + + png_write_iCCP(png_ptr, info_ptr->iccp_name, + info_ptr->iccp_profile); + } +# ifdef PNG_WRITE_sRGB_SUPPORTED + else +# endif +# endif + +# ifdef PNG_WRITE_sRGB_SUPPORTED + if (!(info_ptr->colorspace.flags & PNG_COLORSPACE_INVALID) && + (info_ptr->valid & PNG_INFO_sRGB)) + png_write_sRGB(png_ptr, info_ptr->colorspace.rendering_intent); +# endif /* WRITE_sRGB */ +#endif /* COLORSPACE */ + +#ifdef PNG_WRITE_sBIT_SUPPORTED + if (info_ptr->valid & PNG_INFO_sBIT) + png_write_sBIT(png_ptr, &(info_ptr->sig_bit), info_ptr->color_type); +#endif + +#ifdef PNG_COLORSPACE_SUPPORTED +# ifdef PNG_WRITE_cHRM_SUPPORTED + if (!(info_ptr->colorspace.flags & PNG_COLORSPACE_INVALID) && + (info_ptr->colorspace.flags & PNG_COLORSPACE_FROM_cHRM) && + (info_ptr->valid & PNG_INFO_cHRM)) + png_write_cHRM_fixed(png_ptr, &info_ptr->colorspace.end_points_xy); +# endif +#endif + +#ifdef PNG_WRITE_UNKNOWN_CHUNKS_SUPPORTED + write_unknown_chunks(png_ptr, info_ptr, PNG_HAVE_IHDR); +#endif + + png_ptr->mode |= PNG_WROTE_INFO_BEFORE_PLTE; + } +} + +void PNGAPI +png_write_info(png_structrp png_ptr, png_const_inforp info_ptr) +{ +#if defined(PNG_WRITE_TEXT_SUPPORTED) || defined(PNG_WRITE_sPLT_SUPPORTED) + int i; +#endif + + png_debug(1, "in png_write_info"); + + if (png_ptr == NULL || info_ptr == NULL) + return; + + png_write_info_before_PLTE(png_ptr, info_ptr); + + if (info_ptr->valid & PNG_INFO_PLTE) + png_write_PLTE(png_ptr, info_ptr->palette, + (png_uint_32)info_ptr->num_palette); + + else if (info_ptr->color_type == PNG_COLOR_TYPE_PALETTE) + png_error(png_ptr, "Valid palette required for paletted images"); + +#ifdef PNG_WRITE_tRNS_SUPPORTED + if (info_ptr->valid & PNG_INFO_tRNS) + { +#ifdef PNG_WRITE_INVERT_ALPHA_SUPPORTED + /* Invert the alpha channel (in tRNS) */ + if ((png_ptr->transformations & PNG_INVERT_ALPHA) && + info_ptr->color_type == PNG_COLOR_TYPE_PALETTE) + { + int j; + for (j = 0; j<(int)info_ptr->num_trans; j++) + info_ptr->trans_alpha[j] = + (png_byte)(255 - info_ptr->trans_alpha[j]); + } +#endif + png_write_tRNS(png_ptr, info_ptr->trans_alpha, &(info_ptr->trans_color), + info_ptr->num_trans, info_ptr->color_type); + } +#endif +#ifdef PNG_WRITE_bKGD_SUPPORTED + if (info_ptr->valid & PNG_INFO_bKGD) + png_write_bKGD(png_ptr, &(info_ptr->background), info_ptr->color_type); +#endif + +#ifdef PNG_WRITE_hIST_SUPPORTED + if (info_ptr->valid & PNG_INFO_hIST) + png_write_hIST(png_ptr, info_ptr->hist, info_ptr->num_palette); +#endif + +#ifdef PNG_WRITE_oFFs_SUPPORTED + if (info_ptr->valid & PNG_INFO_oFFs) + png_write_oFFs(png_ptr, info_ptr->x_offset, info_ptr->y_offset, + info_ptr->offset_unit_type); +#endif + +#ifdef PNG_WRITE_pCAL_SUPPORTED + if (info_ptr->valid & PNG_INFO_pCAL) + png_write_pCAL(png_ptr, info_ptr->pcal_purpose, info_ptr->pcal_X0, + info_ptr->pcal_X1, info_ptr->pcal_type, info_ptr->pcal_nparams, + info_ptr->pcal_units, info_ptr->pcal_params); +#endif + +#ifdef PNG_WRITE_sCAL_SUPPORTED + if (info_ptr->valid & PNG_INFO_sCAL) + png_write_sCAL_s(png_ptr, (int)info_ptr->scal_unit, + info_ptr->scal_s_width, info_ptr->scal_s_height); +#endif /* sCAL */ + +#ifdef PNG_WRITE_pHYs_SUPPORTED + if (info_ptr->valid & PNG_INFO_pHYs) + png_write_pHYs(png_ptr, info_ptr->x_pixels_per_unit, + info_ptr->y_pixels_per_unit, info_ptr->phys_unit_type); +#endif /* pHYs */ + +#ifdef PNG_WRITE_tIME_SUPPORTED + if (info_ptr->valid & PNG_INFO_tIME) + { + png_write_tIME(png_ptr, &(info_ptr->mod_time)); + png_ptr->mode |= PNG_WROTE_tIME; + } +#endif /* tIME */ + +#ifdef PNG_WRITE_sPLT_SUPPORTED + if (info_ptr->valid & PNG_INFO_sPLT) + for (i = 0; i < (int)info_ptr->splt_palettes_num; i++) + png_write_sPLT(png_ptr, info_ptr->splt_palettes + i); +#endif /* sPLT */ + +#ifdef PNG_WRITE_TEXT_SUPPORTED + /* Check to see if we need to write text chunks */ + for (i = 0; i < info_ptr->num_text; i++) + { + png_debug2(2, "Writing header text chunk %d, type %d", i, + info_ptr->text[i].compression); + /* An internationalized chunk? */ + if (info_ptr->text[i].compression > 0) + { +#ifdef PNG_WRITE_iTXt_SUPPORTED + /* Write international chunk */ + png_write_iTXt(png_ptr, + info_ptr->text[i].compression, + info_ptr->text[i].key, + info_ptr->text[i].lang, + info_ptr->text[i].lang_key, + info_ptr->text[i].text); +#else + png_warning(png_ptr, "Unable to write international text"); +#endif + /* Mark this chunk as written */ + info_ptr->text[i].compression = PNG_TEXT_COMPRESSION_NONE_WR; + } + + /* If we want a compressed text chunk */ + else if (info_ptr->text[i].compression == PNG_TEXT_COMPRESSION_zTXt) + { +#ifdef PNG_WRITE_zTXt_SUPPORTED + /* Write compressed chunk */ + png_write_zTXt(png_ptr, info_ptr->text[i].key, + info_ptr->text[i].text, 0, + info_ptr->text[i].compression); +#else + png_warning(png_ptr, "Unable to write compressed text"); +#endif + /* Mark this chunk as written */ + info_ptr->text[i].compression = PNG_TEXT_COMPRESSION_zTXt_WR; + } + + else if (info_ptr->text[i].compression == PNG_TEXT_COMPRESSION_NONE) + { +#ifdef PNG_WRITE_tEXt_SUPPORTED + /* Write uncompressed chunk */ + png_write_tEXt(png_ptr, info_ptr->text[i].key, + info_ptr->text[i].text, + 0); + /* Mark this chunk as written */ + info_ptr->text[i].compression = PNG_TEXT_COMPRESSION_NONE_WR; +#else + /* Can't get here */ + png_warning(png_ptr, "Unable to write uncompressed text"); +#endif + } + } +#endif /* tEXt */ + +#ifdef PNG_WRITE_UNKNOWN_CHUNKS_SUPPORTED + write_unknown_chunks(png_ptr, info_ptr, PNG_HAVE_PLTE); +#endif +} + +/* Writes the end of the PNG file. If you don't want to write comments or + * time information, you can pass NULL for info. If you already wrote these + * in png_write_info(), do not write them again here. If you have long + * comments, I suggest writing them here, and compressing them. + */ +void PNGAPI +png_write_end(png_structrp png_ptr, png_inforp info_ptr) +{ + png_debug(1, "in png_write_end"); + + if (png_ptr == NULL) + return; + + if (!(png_ptr->mode & PNG_HAVE_IDAT)) + png_error(png_ptr, "No IDATs written into file"); + +#ifdef PNG_WRITE_CHECK_FOR_INVALID_INDEX_SUPPORTED + if (png_ptr->num_palette_max > png_ptr->num_palette) + png_benign_error(png_ptr, "Wrote palette index exceeding num_palette"); +#endif + + /* See if user wants us to write information chunks */ + if (info_ptr != NULL) + { +#ifdef PNG_WRITE_TEXT_SUPPORTED + int i; /* local index variable */ +#endif +#ifdef PNG_WRITE_tIME_SUPPORTED + /* Check to see if user has supplied a time chunk */ + if ((info_ptr->valid & PNG_INFO_tIME) && + !(png_ptr->mode & PNG_WROTE_tIME)) + png_write_tIME(png_ptr, &(info_ptr->mod_time)); + +#endif +#ifdef PNG_WRITE_TEXT_SUPPORTED + /* Loop through comment chunks */ + for (i = 0; i < info_ptr->num_text; i++) + { + png_debug2(2, "Writing trailer text chunk %d, type %d", i, + info_ptr->text[i].compression); + /* An internationalized chunk? */ + if (info_ptr->text[i].compression > 0) + { +#ifdef PNG_WRITE_iTXt_SUPPORTED + /* Write international chunk */ + png_write_iTXt(png_ptr, + info_ptr->text[i].compression, + info_ptr->text[i].key, + info_ptr->text[i].lang, + info_ptr->text[i].lang_key, + info_ptr->text[i].text); +#else + png_warning(png_ptr, "Unable to write international text"); +#endif + /* Mark this chunk as written */ + info_ptr->text[i].compression = PNG_TEXT_COMPRESSION_NONE_WR; + } + + else if (info_ptr->text[i].compression >= PNG_TEXT_COMPRESSION_zTXt) + { +#ifdef PNG_WRITE_zTXt_SUPPORTED + /* Write compressed chunk */ + png_write_zTXt(png_ptr, info_ptr->text[i].key, + info_ptr->text[i].text, 0, + info_ptr->text[i].compression); +#else + png_warning(png_ptr, "Unable to write compressed text"); +#endif + /* Mark this chunk as written */ + info_ptr->text[i].compression = PNG_TEXT_COMPRESSION_zTXt_WR; + } + + else if (info_ptr->text[i].compression == PNG_TEXT_COMPRESSION_NONE) + { +#ifdef PNG_WRITE_tEXt_SUPPORTED + /* Write uncompressed chunk */ + png_write_tEXt(png_ptr, info_ptr->text[i].key, + info_ptr->text[i].text, 0); +#else + png_warning(png_ptr, "Unable to write uncompressed text"); +#endif + + /* Mark this chunk as written */ + info_ptr->text[i].compression = PNG_TEXT_COMPRESSION_NONE_WR; + } + } +#endif +#ifdef PNG_WRITE_UNKNOWN_CHUNKS_SUPPORTED + write_unknown_chunks(png_ptr, info_ptr, PNG_AFTER_IDAT); +#endif + } + + png_ptr->mode |= PNG_AFTER_IDAT; + + /* Write end of PNG file */ + png_write_IEND(png_ptr); + + /* This flush, added in libpng-1.0.8, removed from libpng-1.0.9beta03, + * and restored again in libpng-1.2.30, may cause some applications that + * do not set png_ptr->output_flush_fn to crash. If your application + * experiences a problem, please try building libpng with + * PNG_WRITE_FLUSH_AFTER_IEND_SUPPORTED defined, and report the event to + * png-mng-implement at lists.sf.net . + */ +#ifdef PNG_WRITE_FLUSH_SUPPORTED +# ifdef PNG_WRITE_FLUSH_AFTER_IEND_SUPPORTED + png_flush(png_ptr); +# endif +#endif +} + +#ifdef PNG_CONVERT_tIME_SUPPORTED +void PNGAPI +png_convert_from_struct_tm(png_timep ptime, PNG_CONST struct tm * ttime) +{ + png_debug(1, "in png_convert_from_struct_tm"); + + ptime->year = (png_uint_16)(1900 + ttime->tm_year); + ptime->month = (png_byte)(ttime->tm_mon + 1); + ptime->day = (png_byte)ttime->tm_mday; + ptime->hour = (png_byte)ttime->tm_hour; + ptime->minute = (png_byte)ttime->tm_min; + ptime->second = (png_byte)ttime->tm_sec; +} + +void PNGAPI +png_convert_from_time_t(png_timep ptime, time_t ttime) +{ + struct tm *tbuf; + + png_debug(1, "in png_convert_from_time_t"); + + tbuf = gmtime(&ttime); + png_convert_from_struct_tm(ptime, tbuf); +} +#endif + +/* Initialize png_ptr structure, and allocate any memory needed */ +PNG_FUNCTION(png_structp,PNGAPI +png_create_write_struct,(png_const_charp user_png_ver, png_voidp error_ptr, + png_error_ptr error_fn, png_error_ptr warn_fn),PNG_ALLOCATED) +{ +#ifndef PNG_USER_MEM_SUPPORTED + png_structrp png_ptr = png_create_png_struct(user_png_ver, error_ptr, + error_fn, warn_fn, NULL, NULL, NULL); +#else + return png_create_write_struct_2(user_png_ver, error_ptr, error_fn, + warn_fn, NULL, NULL, NULL); +} + +/* Alternate initialize png_ptr structure, and allocate any memory needed */ +PNG_FUNCTION(png_structp,PNGAPI +png_create_write_struct_2,(png_const_charp user_png_ver, png_voidp error_ptr, + png_error_ptr error_fn, png_error_ptr warn_fn, png_voidp mem_ptr, + png_malloc_ptr malloc_fn, png_free_ptr free_fn),PNG_ALLOCATED) +{ + png_structrp png_ptr = png_create_png_struct(user_png_ver, error_ptr, + error_fn, warn_fn, mem_ptr, malloc_fn, free_fn); +#endif /* PNG_USER_MEM_SUPPORTED */ + if (png_ptr != NULL) + { + /* Set the zlib control values to defaults; they can be overridden by the + * application after the struct has been created. + */ + png_ptr->zbuffer_size = PNG_ZBUF_SIZE; + + /* The 'zlib_strategy' setting is irrelevant because png_default_claim in + * pngwutil.c defaults it according to whether or not filters will be + * used, and ignores this setting. + */ + png_ptr->zlib_strategy = PNG_Z_DEFAULT_STRATEGY; + png_ptr->zlib_level = PNG_Z_DEFAULT_COMPRESSION; + png_ptr->zlib_mem_level = 8; + png_ptr->zlib_window_bits = 15; + png_ptr->zlib_method = 8; + +#ifdef PNG_WRITE_COMPRESSED_TEXT_SUPPORTED + png_ptr->zlib_text_strategy = PNG_TEXT_Z_DEFAULT_STRATEGY; + png_ptr->zlib_text_level = PNG_TEXT_Z_DEFAULT_COMPRESSION; + png_ptr->zlib_text_mem_level = 8; + png_ptr->zlib_text_window_bits = 15; + png_ptr->zlib_text_method = 8; +#endif /* PNG_WRITE_COMPRESSED_TEXT_SUPPORTED */ + + /* This is a highly dubious configuration option; by default it is off, + * but it may be appropriate for private builds that are testing + * extensions not conformant to the current specification, or of + * applications that must not fail to write at all costs! + */ +#ifdef PNG_BENIGN_WRITE_ERRORS_SUPPORTED + /* In stable builds only warn if an application error can be completely + * handled. + */ + png_ptr->flags |= PNG_FLAG_BENIGN_ERRORS_WARN; +#endif + + /* App warnings are warnings in release (or release candidate) builds but + * are errors during development. + */ +#if PNG_LIBPNG_BUILD_BASE_TYPE >= PNG_LIBPNG_BUILD_RC + png_ptr->flags |= PNG_FLAG_APP_WARNINGS_WARN; +#endif + + /* TODO: delay this, it can be done in png_init_io() (if the app doesn't + * do it itself) avoiding setting the default function if it is not + * required. + */ + png_set_write_fn(png_ptr, NULL, NULL, NULL); + } + + return png_ptr; +} + + +/* Write a few rows of image data. If the image is interlaced, + * either you will have to write the 7 sub images, or, if you + * have called png_set_interlace_handling(), you will have to + * "write" the image seven times. + */ +void PNGAPI +png_write_rows(png_structrp png_ptr, png_bytepp row, + png_uint_32 num_rows) +{ + png_uint_32 i; /* row counter */ + png_bytepp rp; /* row pointer */ + + png_debug(1, "in png_write_rows"); + + if (png_ptr == NULL) + return; + + /* Loop through the rows */ + for (i = 0, rp = row; i < num_rows; i++, rp++) + { + png_write_row(png_ptr, *rp); + } +} + +/* Write the image. You only need to call this function once, even + * if you are writing an interlaced image. + */ +void PNGAPI +png_write_image(png_structrp png_ptr, png_bytepp image) +{ + png_uint_32 i; /* row index */ + int pass, num_pass; /* pass variables */ + png_bytepp rp; /* points to current row */ + + if (png_ptr == NULL) + return; + + png_debug(1, "in png_write_image"); + +#ifdef PNG_WRITE_INTERLACING_SUPPORTED + /* Initialize interlace handling. If image is not interlaced, + * this will set pass to 1 + */ + num_pass = png_set_interlace_handling(png_ptr); +#else + num_pass = 1; +#endif + /* Loop through passes */ + for (pass = 0; pass < num_pass; pass++) + { + /* Loop through image */ + for (i = 0, rp = image; i < png_ptr->height; i++, rp++) + { + png_write_row(png_ptr, *rp); + } + } +} + +#ifdef PNG_MNG_FEATURES_SUPPORTED +/* Performs intrapixel differencing */ +static void +png_do_write_intrapixel(png_row_infop row_info, png_bytep row) +{ + png_debug(1, "in png_do_write_intrapixel"); + + if ((row_info->color_type & PNG_COLOR_MASK_COLOR)) + { + int bytes_per_pixel; + png_uint_32 row_width = row_info->width; + if (row_info->bit_depth == 8) + { + png_bytep rp; + png_uint_32 i; + + if (row_info->color_type == PNG_COLOR_TYPE_RGB) + bytes_per_pixel = 3; + + else if (row_info->color_type == PNG_COLOR_TYPE_RGB_ALPHA) + bytes_per_pixel = 4; + + else + return; + + for (i = 0, rp = row; i < row_width; i++, rp += bytes_per_pixel) + { + *(rp) = (png_byte)((*rp - *(rp + 1)) & 0xff); + *(rp + 2) = (png_byte)((*(rp + 2) - *(rp + 1)) & 0xff); + } + } + +#ifdef PNG_WRITE_16BIT_SUPPORTED + else if (row_info->bit_depth == 16) + { + png_bytep rp; + png_uint_32 i; + + if (row_info->color_type == PNG_COLOR_TYPE_RGB) + bytes_per_pixel = 6; + + else if (row_info->color_type == PNG_COLOR_TYPE_RGB_ALPHA) + bytes_per_pixel = 8; + + else + return; + + for (i = 0, rp = row; i < row_width; i++, rp += bytes_per_pixel) + { + png_uint_32 s0 = (*(rp ) << 8) | *(rp + 1); + png_uint_32 s1 = (*(rp + 2) << 8) | *(rp + 3); + png_uint_32 s2 = (*(rp + 4) << 8) | *(rp + 5); + png_uint_32 red = (png_uint_32)((s0 - s1) & 0xffffL); + png_uint_32 blue = (png_uint_32)((s2 - s1) & 0xffffL); + *(rp ) = (png_byte)((red >> 8) & 0xff); + *(rp + 1) = (png_byte)(red & 0xff); + *(rp + 4) = (png_byte)((blue >> 8) & 0xff); + *(rp + 5) = (png_byte)(blue & 0xff); + } + } +#endif /* PNG_WRITE_16BIT_SUPPORTED */ + } +} +#endif /* PNG_MNG_FEATURES_SUPPORTED */ + +/* Called by user to write a row of image data */ +void PNGAPI +png_write_row(png_structrp png_ptr, png_const_bytep row) +{ + /* 1.5.6: moved from png_struct to be a local structure: */ + png_row_info row_info; + + if (png_ptr == NULL) + return; + + png_debug2(1, "in png_write_row (row %u, pass %d)", + png_ptr->row_number, png_ptr->pass); + + /* Initialize transformations and other stuff if first time */ + if (png_ptr->row_number == 0 && png_ptr->pass == 0) + { + /* Make sure we wrote the header info */ + if (!(png_ptr->mode & PNG_WROTE_INFO_BEFORE_PLTE)) + png_error(png_ptr, + "png_write_info was never called before png_write_row"); + + /* Check for transforms that have been set but were defined out */ +#if !defined(PNG_WRITE_INVERT_SUPPORTED) && defined(PNG_READ_INVERT_SUPPORTED) + if (png_ptr->transformations & PNG_INVERT_MONO) + png_warning(png_ptr, "PNG_WRITE_INVERT_SUPPORTED is not defined"); +#endif + +#if !defined(PNG_WRITE_FILLER_SUPPORTED) && defined(PNG_READ_FILLER_SUPPORTED) + if (png_ptr->transformations & PNG_FILLER) + png_warning(png_ptr, "PNG_WRITE_FILLER_SUPPORTED is not defined"); +#endif +#if !defined(PNG_WRITE_PACKSWAP_SUPPORTED) && \ + defined(PNG_READ_PACKSWAP_SUPPORTED) + if (png_ptr->transformations & PNG_PACKSWAP) + png_warning(png_ptr, + "PNG_WRITE_PACKSWAP_SUPPORTED is not defined"); +#endif + +#if !defined(PNG_WRITE_PACK_SUPPORTED) && defined(PNG_READ_PACK_SUPPORTED) + if (png_ptr->transformations & PNG_PACK) + png_warning(png_ptr, "PNG_WRITE_PACK_SUPPORTED is not defined"); +#endif + +#if !defined(PNG_WRITE_SHIFT_SUPPORTED) && defined(PNG_READ_SHIFT_SUPPORTED) + if (png_ptr->transformations & PNG_SHIFT) + png_warning(png_ptr, "PNG_WRITE_SHIFT_SUPPORTED is not defined"); +#endif + +#if !defined(PNG_WRITE_BGR_SUPPORTED) && defined(PNG_READ_BGR_SUPPORTED) + if (png_ptr->transformations & PNG_BGR) + png_warning(png_ptr, "PNG_WRITE_BGR_SUPPORTED is not defined"); +#endif + +#if !defined(PNG_WRITE_SWAP_SUPPORTED) && defined(PNG_READ_SWAP_SUPPORTED) + if (png_ptr->transformations & PNG_SWAP_BYTES) + png_warning(png_ptr, "PNG_WRITE_SWAP_SUPPORTED is not defined"); +#endif + + png_write_start_row(png_ptr); + } + +#ifdef PNG_WRITE_INTERLACING_SUPPORTED + /* If interlaced and not interested in row, return */ + if (png_ptr->interlaced && (png_ptr->transformations & PNG_INTERLACE)) + { + switch (png_ptr->pass) + { + case 0: + if (png_ptr->row_number & 0x07) + { + png_write_finish_row(png_ptr); + return; + } + break; + + case 1: + if ((png_ptr->row_number & 0x07) || png_ptr->width < 5) + { + png_write_finish_row(png_ptr); + return; + } + break; + + case 2: + if ((png_ptr->row_number & 0x07) != 4) + { + png_write_finish_row(png_ptr); + return; + } + break; + + case 3: + if ((png_ptr->row_number & 0x03) || png_ptr->width < 3) + { + png_write_finish_row(png_ptr); + return; + } + break; + + case 4: + if ((png_ptr->row_number & 0x03) != 2) + { + png_write_finish_row(png_ptr); + return; + } + break; + + case 5: + if ((png_ptr->row_number & 0x01) || png_ptr->width < 2) + { + png_write_finish_row(png_ptr); + return; + } + break; + + case 6: + if (!(png_ptr->row_number & 0x01)) + { + png_write_finish_row(png_ptr); + return; + } + break; + + default: /* error: ignore it */ + break; + } + } +#endif + + /* Set up row info for transformations */ + row_info.color_type = png_ptr->color_type; + row_info.width = png_ptr->usr_width; + row_info.channels = png_ptr->usr_channels; + row_info.bit_depth = png_ptr->usr_bit_depth; + row_info.pixel_depth = (png_byte)(row_info.bit_depth * row_info.channels); + row_info.rowbytes = PNG_ROWBYTES(row_info.pixel_depth, row_info.width); + + png_debug1(3, "row_info->color_type = %d", row_info.color_type); + png_debug1(3, "row_info->width = %u", row_info.width); + png_debug1(3, "row_info->channels = %d", row_info.channels); + png_debug1(3, "row_info->bit_depth = %d", row_info.bit_depth); + png_debug1(3, "row_info->pixel_depth = %d", row_info.pixel_depth); + png_debug1(3, "row_info->rowbytes = %lu", (unsigned long)row_info.rowbytes); + + /* Copy user's row into buffer, leaving room for filter byte. */ + memcpy(png_ptr->row_buf + 1, row, row_info.rowbytes); + +#ifdef PNG_WRITE_INTERLACING_SUPPORTED + /* Handle interlacing */ + if (png_ptr->interlaced && png_ptr->pass < 6 && + (png_ptr->transformations & PNG_INTERLACE)) + { + png_do_write_interlace(&row_info, png_ptr->row_buf + 1, png_ptr->pass); + /* This should always get caught above, but still ... */ + if (row_info.width == 0) + { + png_write_finish_row(png_ptr); + return; + } + } +#endif + +#ifdef PNG_WRITE_TRANSFORMS_SUPPORTED + /* Handle other transformations */ + if (png_ptr->transformations) + png_do_write_transformations(png_ptr, &row_info); +#endif + + /* At this point the row_info pixel depth must match the 'transformed' depth, + * which is also the output depth. + */ + if (row_info.pixel_depth != png_ptr->pixel_depth || + row_info.pixel_depth != png_ptr->transformed_pixel_depth) + png_error(png_ptr, "internal write transform logic error"); + +#ifdef PNG_MNG_FEATURES_SUPPORTED + /* Write filter_method 64 (intrapixel differencing) only if + * 1. Libpng was compiled with PNG_MNG_FEATURES_SUPPORTED and + * 2. Libpng did not write a PNG signature (this filter_method is only + * used in PNG datastreams that are embedded in MNG datastreams) and + * 3. The application called png_permit_mng_features with a mask that + * included PNG_FLAG_MNG_FILTER_64 and + * 4. The filter_method is 64 and + * 5. The color_type is RGB or RGBA + */ + if ((png_ptr->mng_features_permitted & PNG_FLAG_MNG_FILTER_64) && + (png_ptr->filter_type == PNG_INTRAPIXEL_DIFFERENCING)) + { + /* Intrapixel differencing */ + png_do_write_intrapixel(&row_info, png_ptr->row_buf + 1); + } +#endif + +/* Added at libpng-1.5.10 */ +#ifdef PNG_WRITE_CHECK_FOR_INVALID_INDEX_SUPPORTED + /* Check for out-of-range palette index */ + if (row_info.color_type == PNG_COLOR_TYPE_PALETTE && + png_ptr->num_palette_max >= 0) + png_do_check_palette_indexes(png_ptr, &row_info); +#endif + + /* Find a filter if necessary, filter the row and write it out. */ + png_write_find_filter(png_ptr, &row_info); + + if (png_ptr->write_row_fn != NULL) + (*(png_ptr->write_row_fn))(png_ptr, png_ptr->row_number, png_ptr->pass); +} + +#ifdef PNG_WRITE_FLUSH_SUPPORTED +/* Set the automatic flush interval or 0 to turn flushing off */ +void PNGAPI +png_set_flush(png_structrp png_ptr, int nrows) +{ + png_debug(1, "in png_set_flush"); + + if (png_ptr == NULL) + return; + + png_ptr->flush_dist = (nrows < 0 ? 0 : nrows); +} + +/* Flush the current output buffers now */ +void PNGAPI +png_write_flush(png_structrp png_ptr) +{ + png_debug(1, "in png_write_flush"); + + if (png_ptr == NULL) + return; + + /* We have already written out all of the data */ + if (png_ptr->row_number >= png_ptr->num_rows) + return; + + png_compress_IDAT(png_ptr, NULL, 0, Z_SYNC_FLUSH); + png_ptr->flush_rows = 0; + png_flush(png_ptr); +} +#endif /* PNG_WRITE_FLUSH_SUPPORTED */ + +#ifdef PNG_WRITE_WEIGHTED_FILTER_SUPPORTED +static void png_reset_filter_heuristics(png_structrp png_ptr);/* forward decl */ +#endif + +/* Free any memory used in png_ptr struct without freeing the struct itself. */ +static void +png_write_destroy(png_structrp png_ptr) +{ + png_debug(1, "in png_write_destroy"); + + /* Free any memory zlib uses */ + if (png_ptr->flags & PNG_FLAG_ZSTREAM_INITIALIZED) + deflateEnd(&png_ptr->zstream); + + /* Free our memory. png_free checks NULL for us. */ + png_free_buffer_list(png_ptr, &png_ptr->zbuffer_list); + png_free(png_ptr, png_ptr->row_buf); +#ifdef PNG_WRITE_FILTER_SUPPORTED + png_free(png_ptr, png_ptr->prev_row); + png_free(png_ptr, png_ptr->sub_row); + png_free(png_ptr, png_ptr->up_row); + png_free(png_ptr, png_ptr->avg_row); + png_free(png_ptr, png_ptr->paeth_row); +#endif + +#ifdef PNG_WRITE_WEIGHTED_FILTER_SUPPORTED + /* Use this to save a little code space, it doesn't free the filter_costs */ + png_reset_filter_heuristics(png_ptr); + png_free(png_ptr, png_ptr->filter_costs); + png_free(png_ptr, png_ptr->inv_filter_costs); +#endif + +#ifdef PNG_SET_UNKNOWN_CHUNKS_SUPPORTED + png_free(png_ptr, png_ptr->chunk_list); +#endif + + /* The error handling and memory handling information is left intact at this + * point: the jmp_buf may still have to be freed. See png_destroy_png_struct + * for how this happens. + */ +} + +/* Free all memory used by the write. + * In libpng 1.6.0 this API changed quietly to no longer accept a NULL value for + * *png_ptr_ptr. Prior to 1.6.0 it would accept such a value and it would free + * the passed in info_structs but it would quietly fail to free any of the data + * inside them. In 1.6.0 it quietly does nothing (it has to be quiet because it + * has no png_ptr.) + */ +void PNGAPI +png_destroy_write_struct(png_structpp png_ptr_ptr, png_infopp info_ptr_ptr) +{ + png_debug(1, "in png_destroy_write_struct"); + + if (png_ptr_ptr != NULL) + { + png_structrp png_ptr = *png_ptr_ptr; + + if (png_ptr != NULL) /* added in libpng 1.6.0 */ + { + png_destroy_info_struct(png_ptr, info_ptr_ptr); + + *png_ptr_ptr = NULL; + png_write_destroy(png_ptr); + png_destroy_png_struct(png_ptr); + } + } +} + +/* Allow the application to select one or more row filters to use. */ +void PNGAPI +png_set_filter(png_structrp png_ptr, int method, int filters) +{ + png_debug(1, "in png_set_filter"); + + if (png_ptr == NULL) + return; + +#ifdef PNG_MNG_FEATURES_SUPPORTED + if ((png_ptr->mng_features_permitted & PNG_FLAG_MNG_FILTER_64) && + (method == PNG_INTRAPIXEL_DIFFERENCING)) + method = PNG_FILTER_TYPE_BASE; + +#endif + if (method == PNG_FILTER_TYPE_BASE) + { + switch (filters & (PNG_ALL_FILTERS | 0x07)) + { +#ifdef PNG_WRITE_FILTER_SUPPORTED + case 5: + case 6: + case 7: png_app_error(png_ptr, "Unknown row filter for method 0"); + /* FALL THROUGH */ +#endif /* PNG_WRITE_FILTER_SUPPORTED */ + case PNG_FILTER_VALUE_NONE: + png_ptr->do_filter = PNG_FILTER_NONE; break; + +#ifdef PNG_WRITE_FILTER_SUPPORTED + case PNG_FILTER_VALUE_SUB: + png_ptr->do_filter = PNG_FILTER_SUB; break; + + case PNG_FILTER_VALUE_UP: + png_ptr->do_filter = PNG_FILTER_UP; break; + + case PNG_FILTER_VALUE_AVG: + png_ptr->do_filter = PNG_FILTER_AVG; break; + + case PNG_FILTER_VALUE_PAETH: + png_ptr->do_filter = PNG_FILTER_PAETH; break; + + default: + png_ptr->do_filter = (png_byte)filters; break; +#else + default: + png_app_error(png_ptr, "Unknown row filter for method 0"); +#endif /* PNG_WRITE_FILTER_SUPPORTED */ + } + + /* If we have allocated the row_buf, this means we have already started + * with the image and we should have allocated all of the filter buffers + * that have been selected. If prev_row isn't already allocated, then + * it is too late to start using the filters that need it, since we + * will be missing the data in the previous row. If an application + * wants to start and stop using particular filters during compression, + * it should start out with all of the filters, and then add and + * remove them after the start of compression. + */ + if (png_ptr->row_buf != NULL) + { +#ifdef PNG_WRITE_FILTER_SUPPORTED + if ((png_ptr->do_filter & PNG_FILTER_SUB) && png_ptr->sub_row == NULL) + { + png_ptr->sub_row = (png_bytep)png_malloc(png_ptr, + (png_ptr->rowbytes + 1)); + png_ptr->sub_row[0] = PNG_FILTER_VALUE_SUB; + } + + if ((png_ptr->do_filter & PNG_FILTER_UP) && png_ptr->up_row == NULL) + { + if (png_ptr->prev_row == NULL) + { + png_warning(png_ptr, "Can't add Up filter after starting"); + png_ptr->do_filter = (png_byte)(png_ptr->do_filter & + ~PNG_FILTER_UP); + } + + else + { + png_ptr->up_row = (png_bytep)png_malloc(png_ptr, + (png_ptr->rowbytes + 1)); + png_ptr->up_row[0] = PNG_FILTER_VALUE_UP; + } + } + + if ((png_ptr->do_filter & PNG_FILTER_AVG) && png_ptr->avg_row == NULL) + { + if (png_ptr->prev_row == NULL) + { + png_warning(png_ptr, "Can't add Average filter after starting"); + png_ptr->do_filter = (png_byte)(png_ptr->do_filter & + ~PNG_FILTER_AVG); + } + + else + { + png_ptr->avg_row = (png_bytep)png_malloc(png_ptr, + (png_ptr->rowbytes + 1)); + png_ptr->avg_row[0] = PNG_FILTER_VALUE_AVG; + } + } + + if ((png_ptr->do_filter & PNG_FILTER_PAETH) && + png_ptr->paeth_row == NULL) + { + if (png_ptr->prev_row == NULL) + { + png_warning(png_ptr, "Can't add Paeth filter after starting"); + png_ptr->do_filter &= (png_byte)(~PNG_FILTER_PAETH); + } + + else + { + png_ptr->paeth_row = (png_bytep)png_malloc(png_ptr, + (png_ptr->rowbytes + 1)); + png_ptr->paeth_row[0] = PNG_FILTER_VALUE_PAETH; + } + } + + if (png_ptr->do_filter == PNG_NO_FILTERS) +#endif /* PNG_WRITE_FILTER_SUPPORTED */ + png_ptr->do_filter = PNG_FILTER_NONE; + } + } + else + png_error(png_ptr, "Unknown custom filter method"); +} + +/* This allows us to influence the way in which libpng chooses the "best" + * filter for the current scanline. While the "minimum-sum-of-absolute- + * differences metric is relatively fast and effective, there is some + * question as to whether it can be improved upon by trying to keep the + * filtered data going to zlib more consistent, hopefully resulting in + * better compression. + */ +#ifdef PNG_WRITE_WEIGHTED_FILTER_SUPPORTED /* GRR 970116 */ +/* Convenience reset API. */ +static void +png_reset_filter_heuristics(png_structrp png_ptr) +{ + /* Clear out any old values in the 'weights' - this must be done because if + * the app calls set_filter_heuristics multiple times with different + * 'num_weights' values we would otherwise potentially have wrong sized + * arrays. + */ + png_ptr->num_prev_filters = 0; + png_ptr->heuristic_method = PNG_FILTER_HEURISTIC_UNWEIGHTED; + if (png_ptr->prev_filters != NULL) + { + png_bytep old = png_ptr->prev_filters; + png_ptr->prev_filters = NULL; + png_free(png_ptr, old); + } + if (png_ptr->filter_weights != NULL) + { + png_uint_16p old = png_ptr->filter_weights; + png_ptr->filter_weights = NULL; + png_free(png_ptr, old); + } + + if (png_ptr->inv_filter_weights != NULL) + { + png_uint_16p old = png_ptr->inv_filter_weights; + png_ptr->inv_filter_weights = NULL; + png_free(png_ptr, old); + } + + /* Leave the filter_costs - this array is fixed size. */ +} + +static int +png_init_filter_heuristics(png_structrp png_ptr, int heuristic_method, + int num_weights) +{ + if (png_ptr == NULL) + return 0; + + /* Clear out the arrays */ + png_reset_filter_heuristics(png_ptr); + + /* Check arguments; the 'reset' function makes the correct settings for the + * unweighted case, but we must handle the weight case by initializing the + * arrays for the caller. + */ + if (heuristic_method == PNG_FILTER_HEURISTIC_WEIGHTED) + { + int i; + + if (num_weights > 0) + { + png_ptr->prev_filters = (png_bytep)png_malloc(png_ptr, + (png_uint_32)((sizeof (png_byte)) * num_weights)); + + /* To make sure that the weighting starts out fairly */ + for (i = 0; i < num_weights; i++) + { + png_ptr->prev_filters[i] = 255; + } + + png_ptr->filter_weights = (png_uint_16p)png_malloc(png_ptr, + (png_uint_32)((sizeof (png_uint_16)) * num_weights)); + + png_ptr->inv_filter_weights = (png_uint_16p)png_malloc(png_ptr, + (png_uint_32)((sizeof (png_uint_16)) * num_weights)); + + for (i = 0; i < num_weights; i++) + { + png_ptr->inv_filter_weights[i] = + png_ptr->filter_weights[i] = PNG_WEIGHT_FACTOR; + } + + /* Safe to set this now */ + png_ptr->num_prev_filters = (png_byte)num_weights; + } + + /* If, in the future, there are other filter methods, this would + * need to be based on png_ptr->filter. + */ + if (png_ptr->filter_costs == NULL) + { + png_ptr->filter_costs = (png_uint_16p)png_malloc(png_ptr, + (png_uint_32)((sizeof (png_uint_16)) * PNG_FILTER_VALUE_LAST)); + + png_ptr->inv_filter_costs = (png_uint_16p)png_malloc(png_ptr, + (png_uint_32)((sizeof (png_uint_16)) * PNG_FILTER_VALUE_LAST)); + } + + for (i = 0; i < PNG_FILTER_VALUE_LAST; i++) + { + png_ptr->inv_filter_costs[i] = + png_ptr->filter_costs[i] = PNG_COST_FACTOR; + } + + /* All the arrays are inited, safe to set this: */ + png_ptr->heuristic_method = PNG_FILTER_HEURISTIC_WEIGHTED; + + /* Return the 'ok' code. */ + return 1; + } + else if (heuristic_method == PNG_FILTER_HEURISTIC_DEFAULT || + heuristic_method == PNG_FILTER_HEURISTIC_UNWEIGHTED) + { + return 1; + } + else + { + png_warning(png_ptr, "Unknown filter heuristic method"); + return 0; + } +} + +/* Provide floating and fixed point APIs */ +#ifdef PNG_FLOATING_POINT_SUPPORTED +void PNGAPI +png_set_filter_heuristics(png_structrp png_ptr, int heuristic_method, + int num_weights, png_const_doublep filter_weights, + png_const_doublep filter_costs) +{ + png_debug(1, "in png_set_filter_heuristics"); + + /* The internal API allocates all the arrays and ensures that the elements of + * those arrays are set to the default value. + */ + if (!png_init_filter_heuristics(png_ptr, heuristic_method, num_weights)) + return; + + /* If using the weighted method copy in the weights. */ + if (heuristic_method == PNG_FILTER_HEURISTIC_WEIGHTED) + { + int i; + for (i = 0; i < num_weights; i++) + { + if (filter_weights[i] <= 0.0) + { + png_ptr->inv_filter_weights[i] = + png_ptr->filter_weights[i] = PNG_WEIGHT_FACTOR; + } + + else + { + png_ptr->inv_filter_weights[i] = + (png_uint_16)(PNG_WEIGHT_FACTOR*filter_weights[i]+.5); + + png_ptr->filter_weights[i] = + (png_uint_16)(PNG_WEIGHT_FACTOR/filter_weights[i]+.5); + } + } + + /* Here is where we set the relative costs of the different filters. We + * should take the desired compression level into account when setting + * the costs, so that Paeth, for instance, has a high relative cost at low + * compression levels, while it has a lower relative cost at higher + * compression settings. The filter types are in order of increasing + * relative cost, so it would be possible to do this with an algorithm. + */ + for (i = 0; i < PNG_FILTER_VALUE_LAST; i++) if (filter_costs[i] >= 1.0) + { + png_ptr->inv_filter_costs[i] = + (png_uint_16)(PNG_COST_FACTOR / filter_costs[i] + .5); + + png_ptr->filter_costs[i] = + (png_uint_16)(PNG_COST_FACTOR * filter_costs[i] + .5); + } + } +} +#endif /* FLOATING_POINT */ + +#ifdef PNG_FIXED_POINT_SUPPORTED +void PNGAPI +png_set_filter_heuristics_fixed(png_structrp png_ptr, int heuristic_method, + int num_weights, png_const_fixed_point_p filter_weights, + png_const_fixed_point_p filter_costs) +{ + png_debug(1, "in png_set_filter_heuristics_fixed"); + + /* The internal API allocates all the arrays and ensures that the elements of + * those arrays are set to the default value. + */ + if (!png_init_filter_heuristics(png_ptr, heuristic_method, num_weights)) + return; + + /* If using the weighted method copy in the weights. */ + if (heuristic_method == PNG_FILTER_HEURISTIC_WEIGHTED) + { + int i; + for (i = 0; i < num_weights; i++) + { + if (filter_weights[i] <= 0) + { + png_ptr->inv_filter_weights[i] = + png_ptr->filter_weights[i] = PNG_WEIGHT_FACTOR; + } + + else + { + png_ptr->inv_filter_weights[i] = (png_uint_16) + ((PNG_WEIGHT_FACTOR*filter_weights[i]+PNG_FP_HALF)/PNG_FP_1); + + png_ptr->filter_weights[i] = (png_uint_16)((PNG_WEIGHT_FACTOR* + PNG_FP_1+(filter_weights[i]/2))/filter_weights[i]); + } + } + + /* Here is where we set the relative costs of the different filters. We + * should take the desired compression level into account when setting + * the costs, so that Paeth, for instance, has a high relative cost at low + * compression levels, while it has a lower relative cost at higher + * compression settings. The filter types are in order of increasing + * relative cost, so it would be possible to do this with an algorithm. + */ + for (i = 0; i < PNG_FILTER_VALUE_LAST; i++) + if (filter_costs[i] >= PNG_FP_1) + { + png_uint_32 tmp; + + /* Use a 32 bit unsigned temporary here because otherwise the + * intermediate value will be a 32 bit *signed* integer (ANSI rules) + * and this will get the wrong answer on division. + */ + tmp = PNG_COST_FACTOR*PNG_FP_1 + (filter_costs[i]/2); + tmp /= filter_costs[i]; + + png_ptr->inv_filter_costs[i] = (png_uint_16)tmp; + + tmp = PNG_COST_FACTOR * filter_costs[i] + PNG_FP_HALF; + tmp /= PNG_FP_1; + + png_ptr->filter_costs[i] = (png_uint_16)tmp; + } + } +} +#endif /* FIXED_POINT */ +#endif /* PNG_WRITE_WEIGHTED_FILTER_SUPPORTED */ + +void PNGAPI +png_set_compression_level(png_structrp png_ptr, int level) +{ + png_debug(1, "in png_set_compression_level"); + + if (png_ptr == NULL) + return; + + png_ptr->zlib_level = level; +} + +void PNGAPI +png_set_compression_mem_level(png_structrp png_ptr, int mem_level) +{ + png_debug(1, "in png_set_compression_mem_level"); + + if (png_ptr == NULL) + return; + + png_ptr->zlib_mem_level = mem_level; +} + +void PNGAPI +png_set_compression_strategy(png_structrp png_ptr, int strategy) +{ + png_debug(1, "in png_set_compression_strategy"); + + if (png_ptr == NULL) + return; + + /* The flag setting here prevents the libpng dynamic selection of strategy. + */ + png_ptr->flags |= PNG_FLAG_ZLIB_CUSTOM_STRATEGY; + png_ptr->zlib_strategy = strategy; +} + +/* If PNG_WRITE_OPTIMIZE_CMF_SUPPORTED is defined, libpng will use a + * smaller value of window_bits if it can do so safely. + */ +void PNGAPI +png_set_compression_window_bits(png_structrp png_ptr, int window_bits) +{ + if (png_ptr == NULL) + return; + + /* Prior to 1.6.0 this would warn but then set the window_bits value, this + * meant that negative window bits values could be selected which would cause + * libpng to write a non-standard PNG file with raw deflate or gzip + * compressed IDAT or ancillary chunks. Such files can be read and there is + * no warning on read, so this seems like a very bad idea. + */ + if (window_bits > 15) + { + png_warning(png_ptr, "Only compression windows <= 32k supported by PNG"); + window_bits = 15; + } + + else if (window_bits < 8) + { + png_warning(png_ptr, "Only compression windows >= 256 supported by PNG"); + window_bits = 8; + } + + png_ptr->zlib_window_bits = window_bits; +} + +void PNGAPI +png_set_compression_method(png_structrp png_ptr, int method) +{ + png_debug(1, "in png_set_compression_method"); + + if (png_ptr == NULL) + return; + + /* This would produce an invalid PNG file if it worked, but it doesn't and + * deflate will fault it, so it is harmless to just warn here. + */ + if (method != 8) + png_warning(png_ptr, "Only compression method 8 is supported by PNG"); + + png_ptr->zlib_method = method; +} + +/* The following were added to libpng-1.5.4 */ +#ifdef PNG_WRITE_CUSTOMIZE_ZTXT_COMPRESSION_SUPPORTED +void PNGAPI +png_set_text_compression_level(png_structrp png_ptr, int level) +{ + png_debug(1, "in png_set_text_compression_level"); + + if (png_ptr == NULL) + return; + + png_ptr->zlib_text_level = level; +} + +void PNGAPI +png_set_text_compression_mem_level(png_structrp png_ptr, int mem_level) +{ + png_debug(1, "in png_set_text_compression_mem_level"); + + if (png_ptr == NULL) + return; + + png_ptr->zlib_text_mem_level = mem_level; +} + +void PNGAPI +png_set_text_compression_strategy(png_structrp png_ptr, int strategy) +{ + png_debug(1, "in png_set_text_compression_strategy"); + + if (png_ptr == NULL) + return; + + png_ptr->zlib_text_strategy = strategy; +} + +/* If PNG_WRITE_OPTIMIZE_CMF_SUPPORTED is defined, libpng will use a + * smaller value of window_bits if it can do so safely. + */ +void PNGAPI +png_set_text_compression_window_bits(png_structrp png_ptr, int window_bits) +{ + if (png_ptr == NULL) + return; + + if (window_bits > 15) + { + png_warning(png_ptr, "Only compression windows <= 32k supported by PNG"); + window_bits = 15; + } + + else if (window_bits < 8) + { + png_warning(png_ptr, "Only compression windows >= 256 supported by PNG"); + window_bits = 8; + } + + png_ptr->zlib_text_window_bits = window_bits; +} + +void PNGAPI +png_set_text_compression_method(png_structrp png_ptr, int method) +{ + png_debug(1, "in png_set_text_compression_method"); + + if (png_ptr == NULL) + return; + + if (method != 8) + png_warning(png_ptr, "Only compression method 8 is supported by PNG"); + + png_ptr->zlib_text_method = method; +} +#endif /* PNG_WRITE_CUSTOMIZE_ZTXT_COMPRESSION_SUPPORTED */ +/* end of API added to libpng-1.5.4 */ + +void PNGAPI +png_set_write_status_fn(png_structrp png_ptr, png_write_status_ptr write_row_fn) +{ + if (png_ptr == NULL) + return; + + png_ptr->write_row_fn = write_row_fn; +} + +#ifdef PNG_WRITE_USER_TRANSFORM_SUPPORTED +void PNGAPI +png_set_write_user_transform_fn(png_structrp png_ptr, png_user_transform_ptr + write_user_transform_fn) +{ + png_debug(1, "in png_set_write_user_transform_fn"); + + if (png_ptr == NULL) + return; + + png_ptr->transformations |= PNG_USER_TRANSFORM; + png_ptr->write_user_transform_fn = write_user_transform_fn; +} +#endif + + +#ifdef PNG_INFO_IMAGE_SUPPORTED +void PNGAPI +png_write_png(png_structrp png_ptr, png_inforp info_ptr, + int transforms, voidp params) +{ + if (png_ptr == NULL || info_ptr == NULL) + return; + + if ((info_ptr->valid & PNG_INFO_IDAT) == 0) + { + png_app_error(png_ptr, "no rows for png_write_image to write"); + return; + } + + /* Write the file header information. */ + png_write_info(png_ptr, info_ptr); + + /* ------ these transformations don't touch the info structure ------- */ + + /* Invert monochrome pixels */ + if (transforms & PNG_TRANSFORM_INVERT_MONO) +#ifdef PNG_WRITE_INVERT_SUPPORTED + png_set_invert_mono(png_ptr); +#else + png_app_error(png_ptr, "PNG_TRANSFORM_INVERT_MONO not supported"); +#endif + + /* Shift the pixels up to a legal bit depth and fill in + * as appropriate to correctly scale the image. + */ + if (transforms & PNG_TRANSFORM_SHIFT) +#ifdef PNG_WRITE_SHIFT_SUPPORTED + if (info_ptr->valid & PNG_INFO_sBIT) + png_set_shift(png_ptr, &info_ptr->sig_bit); +#else + png_app_error(png_ptr, "PNG_TRANSFORM_SHIFT not supported"); +#endif + + /* Pack pixels into bytes */ + if (transforms & PNG_TRANSFORM_PACKING) +#ifdef PNG_WRITE_PACK_SUPPORTED + png_set_packing(png_ptr); +#else + png_app_error(png_ptr, "PNG_TRANSFORM_PACKING not supported"); +#endif + + /* Swap location of alpha bytes from ARGB to RGBA */ + if (transforms & PNG_TRANSFORM_SWAP_ALPHA) +#ifdef PNG_WRITE_SWAP_ALPHA_SUPPORTED + png_set_swap_alpha(png_ptr); +#else + png_app_error(png_ptr, "PNG_TRANSFORM_SWAP_ALPHA not supported"); +#endif + + /* Remove a filler (X) from XRGB/RGBX/AG/GA into to convert it into + * RGB, note that the code expects the input color type to be G or RGB; no + * alpha channel. + */ + if (transforms & + (PNG_TRANSFORM_STRIP_FILLER_AFTER|PNG_TRANSFORM_STRIP_FILLER_BEFORE)) + { +#ifdef PNG_WRITE_FILLER_SUPPORTED + if (transforms & PNG_TRANSFORM_STRIP_FILLER_AFTER) + { + if (transforms & PNG_TRANSFORM_STRIP_FILLER_BEFORE) + png_app_error(png_ptr, + "PNG_TRANSFORM_STRIP_FILLER: BEFORE+AFTER not supported"); + + /* Continue if ignored - this is the pre-1.6.10 behavior */ + png_set_filler(png_ptr, 0, PNG_FILLER_AFTER); + } + + else if (transforms & PNG_TRANSFORM_STRIP_FILLER_BEFORE) + png_set_filler(png_ptr, 0, PNG_FILLER_BEFORE); +#else + png_app_error(png_ptr, "PNG_TRANSFORM_STRIP_FILLER not supported"); +#endif + } + + /* Flip BGR pixels to RGB */ + if (transforms & PNG_TRANSFORM_BGR) +#ifdef PNG_WRITE_BGR_SUPPORTED + png_set_bgr(png_ptr); +#else + png_app_error(png_ptr, "PNG_TRANSFORM_BGR not supported"); +#endif + + /* Swap bytes of 16-bit files to most significant byte first */ + if (transforms & PNG_TRANSFORM_SWAP_ENDIAN) +#ifdef PNG_WRITE_SWAP_SUPPORTED + png_set_swap(png_ptr); +#else + png_app_error(png_ptr, "PNG_TRANSFORM_SWAP_ENDIAN not supported"); +#endif + + /* Swap bits of 1, 2, 4 bit packed pixel formats */ + if (transforms & PNG_TRANSFORM_PACKSWAP) +#ifdef PNG_WRITE_PACKSWAP_SUPPORTED + png_set_packswap(png_ptr); +#else + png_app_error(png_ptr, "PNG_TRANSFORM_PACKSWAP not supported"); +#endif + + /* Invert the alpha channel from opacity to transparency */ + if (transforms & PNG_TRANSFORM_INVERT_ALPHA) +#ifdef PNG_WRITE_INVERT_ALPHA_SUPPORTED + png_set_invert_alpha(png_ptr); +#else + png_app_error(png_ptr, "PNG_TRANSFORM_INVERT_ALPHA not supported"); +#endif + + /* ----------------------- end of transformations ------------------- */ + + /* Write the bits */ + png_write_image(png_ptr, info_ptr->row_pointers); + + /* It is REQUIRED to call this to finish writing the rest of the file */ + png_write_end(png_ptr, info_ptr); + + PNG_UNUSED(params) +} +#endif + + +#ifdef PNG_SIMPLIFIED_WRITE_SUPPORTED +#ifdef PNG_STDIO_SUPPORTED /* currently required for png_image_write_* */ +/* Initialize the write structure - general purpose utility. */ +static int +png_image_write_init(png_imagep image) +{ + png_structp png_ptr = png_create_write_struct(PNG_LIBPNG_VER_STRING, image, + png_safe_error, png_safe_warning); + + if (png_ptr != NULL) + { + png_infop info_ptr = png_create_info_struct(png_ptr); + + if (info_ptr != NULL) + { + png_controlp control = png_voidcast(png_controlp, + png_malloc_warn(png_ptr, (sizeof *control))); + + if (control != NULL) + { + memset(control, 0, (sizeof *control)); + + control->png_ptr = png_ptr; + control->info_ptr = info_ptr; + control->for_write = 1; + + image->opaque = control; + return 1; + } + + /* Error clean up */ + png_destroy_info_struct(png_ptr, &info_ptr); + } + + png_destroy_write_struct(&png_ptr, NULL); + } + + return png_image_error(image, "png_image_write_: out of memory"); +} + +/* Arguments to png_image_write_main: */ +typedef struct +{ + /* Arguments: */ + png_imagep image; + png_const_voidp buffer; + png_int_32 row_stride; + png_const_voidp colormap; + int convert_to_8bit; + /* Local variables: */ + png_const_voidp first_row; + ptrdiff_t row_bytes; + png_voidp local_row; +} png_image_write_control; + +/* Write png_uint_16 input to a 16-bit PNG; the png_ptr has already been set to + * do any necessary byte swapping. The component order is defined by the + * png_image format value. + */ +static int +png_write_image_16bit(png_voidp argument) +{ + png_image_write_control *display = png_voidcast(png_image_write_control*, + argument); + png_imagep image = display->image; + png_structrp png_ptr = image->opaque->png_ptr; + + png_const_uint_16p input_row = png_voidcast(png_const_uint_16p, + display->first_row); + png_uint_16p output_row = png_voidcast(png_uint_16p, display->local_row); + png_uint_16p row_end; + const int channels = (image->format & PNG_FORMAT_FLAG_COLOR) ? 3 : 1; + int aindex = 0; + png_uint_32 y = image->height; + + if (image->format & PNG_FORMAT_FLAG_ALPHA) + { +# ifdef PNG_SIMPLIFIED_WRITE_AFIRST_SUPPORTED + if (image->format & PNG_FORMAT_FLAG_AFIRST) + { + aindex = -1; + ++input_row; /* To point to the first component */ + ++output_row; + } + + else +# endif + aindex = channels; + } + + else + png_error(png_ptr, "png_write_image: internal call error"); + + /* Work out the output row end and count over this, note that the increment + * above to 'row' means that row_end can actually be beyond the end of the + * row; this is correct. + */ + row_end = output_row + image->width * (channels+1); + + while (y-- > 0) + { + png_const_uint_16p in_ptr = input_row; + png_uint_16p out_ptr = output_row; + + while (out_ptr < row_end) + { + const png_uint_16 alpha = in_ptr[aindex]; + png_uint_32 reciprocal = 0; + int c; + + out_ptr[aindex] = alpha; + + /* Calculate a reciprocal. The correct calculation is simply + * component/alpha*65535 << 15. (I.e. 15 bits of precision); this + * allows correct rounding by adding .5 before the shift. 'reciprocal' + * is only initialized when required. + */ + if (alpha > 0 && alpha < 65535) + reciprocal = ((0xffff<<15)+(alpha>>1))/alpha; + + c = channels; + do /* always at least one channel */ + { + png_uint_16 component = *in_ptr++; + + /* The following gives 65535 for an alpha of 0, which is fine, + * otherwise if 0/0 is represented as some other value there is more + * likely to be a discontinuity which will probably damage + * compression when moving from a fully transparent area to a + * nearly transparent one. (The assumption here is that opaque + * areas tend not to be 0 intensity.) + */ + if (component >= alpha) + component = 65535; + + /* component 0 && alpha < 65535) + { + png_uint_32 calc = component * reciprocal; + calc += 16384; /* round to nearest */ + component = (png_uint_16)(calc >> 15); + } + + *out_ptr++ = component; + } + while (--c > 0); + + /* Skip to next component (skip the intervening alpha channel) */ + ++in_ptr; + ++out_ptr; + } + + png_write_row(png_ptr, png_voidcast(png_const_bytep, display->local_row)); + input_row += display->row_bytes/(sizeof (png_uint_16)); + } + + return 1; +} + +/* Given 16-bit input (1 to 4 channels) write 8-bit output. If an alpha channel + * is present it must be removed from the components, the components are then + * written in sRGB encoding. No components are added or removed. + * + * Calculate an alpha reciprocal to reverse pre-multiplication. As above the + * calculation can be done to 15 bits of accuracy; however, the output needs to + * be scaled in the range 0..255*65535, so include that scaling here. + */ +#define UNP_RECIPROCAL(alpha) ((((0xffff*0xff)<<7)+(alpha>>1))/alpha) + +static png_byte +png_unpremultiply(png_uint_32 component, png_uint_32 alpha, + png_uint_32 reciprocal/*from the above macro*/) +{ + /* The following gives 1.0 for an alpha of 0, which is fine, otherwise if 0/0 + * is represented as some other value there is more likely to be a + * discontinuity which will probably damage compression when moving from a + * fully transparent area to a nearly transparent one. (The assumption here + * is that opaque areas tend not to be 0 intensity.) + * + * There is a rounding problem here; if alpha is less than 128 it will end up + * as 0 when scaled to 8 bits. To avoid introducing spurious colors into the + * output change for this too. + */ + if (component >= alpha || alpha < 128) + return 255; + + /* component 0) + { + /* The test is that alpha/257 (rounded) is less than 255, the first value + * that becomes 255 is 65407. + * NOTE: this must agree with the PNG_DIV257 macro (which must, therefore, + * be exact!) [Could also test reciprocal != 0] + */ + if (alpha < 65407) + { + component *= reciprocal; + component += 64; /* round to nearest */ + component >>= 7; + } + + else + component *= 255; + + /* Convert the component to sRGB. */ + return (png_byte)PNG_sRGB_FROM_LINEAR(component); + } + + else + return 0; +} + +static int +png_write_image_8bit(png_voidp argument) +{ + png_image_write_control *display = png_voidcast(png_image_write_control*, + argument); + png_imagep image = display->image; + png_structrp png_ptr = image->opaque->png_ptr; + + png_const_uint_16p input_row = png_voidcast(png_const_uint_16p, + display->first_row); + png_bytep output_row = png_voidcast(png_bytep, display->local_row); + png_uint_32 y = image->height; + const int channels = (image->format & PNG_FORMAT_FLAG_COLOR) ? 3 : 1; + + if (image->format & PNG_FORMAT_FLAG_ALPHA) + { + png_bytep row_end; + int aindex; + +# ifdef PNG_SIMPLIFIED_WRITE_AFIRST_SUPPORTED + if (image->format & PNG_FORMAT_FLAG_AFIRST) + { + aindex = -1; + ++input_row; /* To point to the first component */ + ++output_row; + } + + else +# endif + aindex = channels; + + /* Use row_end in place of a loop counter: */ + row_end = output_row + image->width * (channels+1); + + while (y-- > 0) + { + png_const_uint_16p in_ptr = input_row; + png_bytep out_ptr = output_row; + + while (out_ptr < row_end) + { + png_uint_16 alpha = in_ptr[aindex]; + png_byte alphabyte = (png_byte)PNG_DIV257(alpha); + png_uint_32 reciprocal = 0; + int c; + + /* Scale and write the alpha channel. */ + out_ptr[aindex] = alphabyte; + + if (alphabyte > 0 && alphabyte < 255) + reciprocal = UNP_RECIPROCAL(alpha); + + c = channels; + do /* always at least one channel */ + *out_ptr++ = png_unpremultiply(*in_ptr++, alpha, reciprocal); + while (--c > 0); + + /* Skip to next component (skip the intervening alpha channel) */ + ++in_ptr; + ++out_ptr; + } /* while out_ptr < row_end */ + + png_write_row(png_ptr, png_voidcast(png_const_bytep, + display->local_row)); + input_row += display->row_bytes/(sizeof (png_uint_16)); + } /* while y */ + } + + else + { + /* No alpha channel, so the row_end really is the end of the row and it + * is sufficient to loop over the components one by one. + */ + png_bytep row_end = output_row + image->width * channels; + + while (y-- > 0) + { + png_const_uint_16p in_ptr = input_row; + png_bytep out_ptr = output_row; + + while (out_ptr < row_end) + { + png_uint_32 component = *in_ptr++; + + component *= 255; + *out_ptr++ = (png_byte)PNG_sRGB_FROM_LINEAR(component); + } + + png_write_row(png_ptr, output_row); + input_row += display->row_bytes/(sizeof (png_uint_16)); + } + } + + return 1; +} + +static void +png_image_set_PLTE(png_image_write_control *display) +{ + const png_imagep image = display->image; + const void *cmap = display->colormap; + const int entries = image->colormap_entries > 256 ? 256 : + (int)image->colormap_entries; + + /* NOTE: the caller must check for cmap != NULL and entries != 0 */ + const png_uint_32 format = image->format; + const int channels = PNG_IMAGE_SAMPLE_CHANNELS(format); + +# if defined(PNG_FORMAT_BGR_SUPPORTED) &&\ + defined(PNG_SIMPLIFIED_WRITE_AFIRST_SUPPORTED) + const int afirst = (format & PNG_FORMAT_FLAG_AFIRST) != 0 && + (format & PNG_FORMAT_FLAG_ALPHA) != 0; +# else +# define afirst 0 +# endif + +# ifdef PNG_FORMAT_BGR_SUPPORTED + const int bgr = (format & PNG_FORMAT_FLAG_BGR) ? 2 : 0; +# else +# define bgr 0 +# endif + + int i, num_trans; + png_color palette[256]; + png_byte tRNS[256]; + + memset(tRNS, 255, (sizeof tRNS)); + memset(palette, 0, (sizeof palette)); + + for (i=num_trans=0; i= 3) /* RGB */ + { + palette[i].blue = (png_byte)PNG_sRGB_FROM_LINEAR(255 * + entry[(2 ^ bgr)]); + palette[i].green = (png_byte)PNG_sRGB_FROM_LINEAR(255 * + entry[1]); + palette[i].red = (png_byte)PNG_sRGB_FROM_LINEAR(255 * + entry[bgr]); + } + + else /* Gray */ + palette[i].blue = palette[i].red = palette[i].green = + (png_byte)PNG_sRGB_FROM_LINEAR(255 * *entry); + } + + else /* alpha */ + { + png_uint_16 alpha = entry[afirst ? 0 : channels-1]; + png_byte alphabyte = (png_byte)PNG_DIV257(alpha); + png_uint_32 reciprocal = 0; + + /* Calculate a reciprocal, as in the png_write_image_8bit code above + * this is designed to produce a value scaled to 255*65535 when + * divided by 128 (i.e. asr 7). + */ + if (alphabyte > 0 && alphabyte < 255) + reciprocal = (((0xffff*0xff)<<7)+(alpha>>1))/alpha; + + tRNS[i] = alphabyte; + if (alphabyte < 255) + num_trans = i+1; + + if (channels >= 3) /* RGB */ + { + palette[i].blue = png_unpremultiply(entry[afirst + (2 ^ bgr)], + alpha, reciprocal); + palette[i].green = png_unpremultiply(entry[afirst + 1], alpha, + reciprocal); + palette[i].red = png_unpremultiply(entry[afirst + bgr], alpha, + reciprocal); + } + + else /* gray */ + palette[i].blue = palette[i].red = palette[i].green = + png_unpremultiply(entry[afirst], alpha, reciprocal); + } + } + + else /* Color-map has sRGB values */ + { + png_const_bytep entry = png_voidcast(png_const_bytep, cmap); + + entry += i * channels; + + switch (channels) + { + case 4: + tRNS[i] = entry[afirst ? 0 : 3]; + if (tRNS[i] < 255) + num_trans = i+1; + /* FALL THROUGH */ + case 3: + palette[i].blue = entry[afirst + (2 ^ bgr)]; + palette[i].green = entry[afirst + 1]; + palette[i].red = entry[afirst + bgr]; + break; + + case 2: + tRNS[i] = entry[1 ^ afirst]; + if (tRNS[i] < 255) + num_trans = i+1; + /* FALL THROUGH */ + case 1: + palette[i].blue = palette[i].red = palette[i].green = + entry[afirst]; + break; + + default: + break; + } + } + } + +# ifdef afirst +# undef afirst +# endif +# ifdef bgr +# undef bgr +# endif + + png_set_PLTE(image->opaque->png_ptr, image->opaque->info_ptr, palette, + entries); + + if (num_trans > 0) + png_set_tRNS(image->opaque->png_ptr, image->opaque->info_ptr, tRNS, + num_trans, NULL); + + image->colormap_entries = entries; +} + +static int +png_image_write_main(png_voidp argument) +{ + png_image_write_control *display = png_voidcast(png_image_write_control*, + argument); + png_imagep image = display->image; + png_structrp png_ptr = image->opaque->png_ptr; + png_inforp info_ptr = image->opaque->info_ptr; + png_uint_32 format = image->format; + + int colormap = (format & PNG_FORMAT_FLAG_COLORMAP) != 0; + int linear = !colormap && (format & PNG_FORMAT_FLAG_LINEAR) != 0; /* input */ + int alpha = !colormap && (format & PNG_FORMAT_FLAG_ALPHA) != 0; + int write_16bit = linear && !colormap && !display->convert_to_8bit; + +# ifdef PNG_BENIGN_ERRORS_SUPPORTED + /* Make sure we error out on any bad situation */ + png_set_benign_errors(png_ptr, 0/*error*/); +# endif + + /* Default the 'row_stride' parameter if required. */ + if (display->row_stride == 0) + display->row_stride = PNG_IMAGE_ROW_STRIDE(*image); + + /* Set the required transforms then write the rows in the correct order. */ + if (format & PNG_FORMAT_FLAG_COLORMAP) + { + if (display->colormap != NULL && image->colormap_entries > 0) + { + png_uint_32 entries = image->colormap_entries; + + png_set_IHDR(png_ptr, info_ptr, image->width, image->height, + entries > 16 ? 8 : (entries > 4 ? 4 : (entries > 2 ? 2 : 1)), + PNG_COLOR_TYPE_PALETTE, PNG_INTERLACE_NONE, + PNG_COMPRESSION_TYPE_BASE, PNG_FILTER_TYPE_BASE); + + png_image_set_PLTE(display); + } + + else + png_error(image->opaque->png_ptr, + "no color-map for color-mapped image"); + } + + else + png_set_IHDR(png_ptr, info_ptr, image->width, image->height, + write_16bit ? 16 : 8, + ((format & PNG_FORMAT_FLAG_COLOR) ? PNG_COLOR_MASK_COLOR : 0) + + ((format & PNG_FORMAT_FLAG_ALPHA) ? PNG_COLOR_MASK_ALPHA : 0), + PNG_INTERLACE_NONE, PNG_COMPRESSION_TYPE_BASE, PNG_FILTER_TYPE_BASE); + + /* Counter-intuitively the data transformations must be called *after* + * png_write_info, not before as in the read code, but the 'set' functions + * must still be called before. Just set the color space information, never + * write an interlaced image. + */ + + if (write_16bit != 0) + { + /* The gamma here is 1.0 (linear) and the cHRM chunk matches sRGB. */ + png_set_gAMA_fixed(png_ptr, info_ptr, PNG_GAMMA_LINEAR); + + if (!(image->flags & PNG_IMAGE_FLAG_COLORSPACE_NOT_sRGB)) + png_set_cHRM_fixed(png_ptr, info_ptr, + /* color x y */ + /* white */ 31270, 32900, + /* red */ 64000, 33000, + /* green */ 30000, 60000, + /* blue */ 15000, 6000 + ); + } + + else if (!(image->flags & PNG_IMAGE_FLAG_COLORSPACE_NOT_sRGB)) + png_set_sRGB(png_ptr, info_ptr, PNG_sRGB_INTENT_PERCEPTUAL); + + /* Else writing an 8-bit file and the *colors* aren't sRGB, but the 8-bit + * space must still be gamma encoded. + */ + else + png_set_gAMA_fixed(png_ptr, info_ptr, PNG_GAMMA_sRGB_INVERSE); + + /* Write the file header. */ + png_write_info(png_ptr, info_ptr); + + /* Now set up the data transformations (*after* the header is written), + * remove the handled transformations from the 'format' flags for checking. + * + * First check for a little endian system if writing 16 bit files. + */ + if (write_16bit != 0) + { + PNG_CONST png_uint_16 le = 0x0001; + + if (*(png_const_bytep)&le) + png_set_swap(png_ptr); + } + +# ifdef PNG_SIMPLIFIED_WRITE_BGR_SUPPORTED + if (format & PNG_FORMAT_FLAG_BGR) + { + if (!colormap && (format & PNG_FORMAT_FLAG_COLOR) != 0) + png_set_bgr(png_ptr); + format &= ~PNG_FORMAT_FLAG_BGR; + } +# endif + +# ifdef PNG_SIMPLIFIED_WRITE_AFIRST_SUPPORTED + if (format & PNG_FORMAT_FLAG_AFIRST) + { + if (!colormap && (format & PNG_FORMAT_FLAG_ALPHA) != 0) + png_set_swap_alpha(png_ptr); + format &= ~PNG_FORMAT_FLAG_AFIRST; + } +# endif + + /* If there are 16 or fewer color-map entries we wrote a lower bit depth + * above, but the application data is still byte packed. + */ + if (colormap && image->colormap_entries <= 16) + png_set_packing(png_ptr); + + /* That should have handled all (both) the transforms. */ + if ((format & ~(png_uint_32)(PNG_FORMAT_FLAG_COLOR | PNG_FORMAT_FLAG_LINEAR | + PNG_FORMAT_FLAG_ALPHA | PNG_FORMAT_FLAG_COLORMAP)) != 0) + png_error(png_ptr, "png_write_image: unsupported transformation"); + + { + png_const_bytep row = png_voidcast(png_const_bytep, display->buffer); + ptrdiff_t row_bytes = display->row_stride; + + if (linear != 0) + row_bytes *= (sizeof (png_uint_16)); + + if (row_bytes < 0) + row += (image->height-1) * (-row_bytes); + + display->first_row = row; + display->row_bytes = row_bytes; + } + + /* Apply 'fast' options if the flag is set. */ + if ((image->flags & PNG_IMAGE_FLAG_FAST) != 0) + { + png_set_filter(png_ptr, PNG_FILTER_TYPE_BASE, PNG_NO_FILTERS); + /* NOTE: determined by experiment using pngstest, this reflects some + * balance between the time to write the image once and the time to read + * it about 50 times. The speed-up in pngstest was about 10-20% of the + * total (user) time on a heavily loaded system. + */ + png_set_compression_level(png_ptr, 3); + } + + /* Check for the cases that currently require a pre-transform on the row + * before it is written. This only applies when the input is 16-bit and + * either there is an alpha channel or it is converted to 8-bit. + */ + if ((linear && alpha) || (!colormap && display->convert_to_8bit)) + { + png_bytep row = png_voidcast(png_bytep, png_malloc(png_ptr, + png_get_rowbytes(png_ptr, info_ptr))); + int result; + + display->local_row = row; + if (write_16bit != 0) + result = png_safe_execute(image, png_write_image_16bit, display); + else + result = png_safe_execute(image, png_write_image_8bit, display); + display->local_row = NULL; + + png_free(png_ptr, row); + + /* Skip the 'write_end' on error: */ + if (result == 0) + return 0; + } + + /* Otherwise this is the case where the input is in a format currently + * supported by the rest of the libpng write code; call it directly. + */ + else + { + png_const_bytep row = png_voidcast(png_const_bytep, display->first_row); + ptrdiff_t row_bytes = display->row_bytes; + png_uint_32 y = image->height; + + while (y-- > 0) + { + png_write_row(png_ptr, row); + row += row_bytes; + } + } + + png_write_end(png_ptr, info_ptr); + return 1; +} + +int PNGAPI +png_image_write_to_stdio(png_imagep image, FILE *file, int convert_to_8bit, + const void *buffer, png_int_32 row_stride, const void *colormap) +{ + /* Write the image to the given (FILE*). */ + if (image != NULL && image->version == PNG_IMAGE_VERSION) + { + if (file != NULL) + { + if (png_image_write_init(image)) + { + png_image_write_control display; + int result; + + /* This is slightly evil, but png_init_io doesn't do anything other + * than this and we haven't changed the standard IO functions so + * this saves a 'safe' function. + */ + image->opaque->png_ptr->io_ptr = file; + + memset(&display, 0, (sizeof display)); + display.image = image; + display.buffer = buffer; + display.row_stride = row_stride; + display.colormap = colormap; + display.convert_to_8bit = convert_to_8bit; + + result = png_safe_execute(image, png_image_write_main, &display); + png_image_free(image); + return result; + } + + else + return 0; + } + + else + return png_image_error(image, + "png_image_write_to_stdio: invalid argument"); + } + + else if (image != NULL) + return png_image_error(image, + "png_image_write_to_stdio: incorrect PNG_IMAGE_VERSION"); + + else + return 0; +} + +int PNGAPI +png_image_write_to_file(png_imagep image, const char *file_name, + int convert_to_8bit, const void *buffer, png_int_32 row_stride, + const void *colormap) +{ + /* Write the image to the named file. */ + if (image != NULL && image->version == PNG_IMAGE_VERSION) + { + if (file_name != NULL) + { + FILE *fp = fopen(file_name, "wb"); + + if (fp != NULL) + { + if (png_image_write_to_stdio(image, fp, convert_to_8bit, buffer, + row_stride, colormap)) + { + int error; /* from fflush/fclose */ + + /* Make sure the file is flushed correctly. */ + if (fflush(fp) == 0 && ferror(fp) == 0) + { + if (fclose(fp) == 0) + return 1; + + error = errno; /* from fclose */ + } + + else + { + error = errno; /* from fflush or ferror */ + (void)fclose(fp); + } + + (void)remove(file_name); + /* The image has already been cleaned up; this is just used to + * set the error (because the original write succeeded). + */ + return png_image_error(image, strerror(error)); + } + + else + { + /* Clean up: just the opened file. */ + (void)fclose(fp); + (void)remove(file_name); + return 0; + } + } + + else + return png_image_error(image, strerror(errno)); + } + + else + return png_image_error(image, + "png_image_write_to_file: invalid argument"); + } + + else if (image != NULL) + return png_image_error(image, + "png_image_write_to_file: incorrect PNG_IMAGE_VERSION"); + + else + return 0; +} +#endif /* PNG_STDIO_SUPPORTED */ +#endif /* SIMPLIFIED_WRITE */ +#endif /* PNG_WRITE_SUPPORTED */ diff --git a/png/pngwtran.c b/png/pngwtran.c new file mode 100644 index 0000000..215bd68 --- /dev/null +++ b/png/pngwtran.c @@ -0,0 +1,572 @@ + +/* pngwtran.c - transforms the data in a row for PNG writers + * + * Last changed in libpng 1.6.9 [February 6, 2014] + * Copyright (c) 1998-2014 Glenn Randers-Pehrson + * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) + * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) + * + * This code is released under the libpng license. + * For conditions of distribution and use, see the disclaimer + * and license in png.h + */ + +#include "pngpriv.h" + +#ifdef PNG_WRITE_SUPPORTED +#ifdef PNG_WRITE_TRANSFORMS_SUPPORTED + +#ifdef PNG_WRITE_PACK_SUPPORTED +/* Pack pixels into bytes. Pass the true bit depth in bit_depth. The + * row_info bit depth should be 8 (one pixel per byte). The channels + * should be 1 (this only happens on grayscale and paletted images). + */ +static void +png_do_pack(png_row_infop row_info, png_bytep row, png_uint_32 bit_depth) +{ + png_debug(1, "in png_do_pack"); + + if (row_info->bit_depth == 8 && + row_info->channels == 1) + { + switch ((int)bit_depth) + { + case 1: + { + png_bytep sp, dp; + int mask, v; + png_uint_32 i; + png_uint_32 row_width = row_info->width; + + sp = row; + dp = row; + mask = 0x80; + v = 0; + + for (i = 0; i < row_width; i++) + { + if (*sp != 0) + v |= mask; + + sp++; + + if (mask > 1) + mask >>= 1; + + else + { + mask = 0x80; + *dp = (png_byte)v; + dp++; + v = 0; + } + } + + if (mask != 0x80) + *dp = (png_byte)v; + + break; + } + + case 2: + { + png_bytep sp, dp; + int shift, v; + png_uint_32 i; + png_uint_32 row_width = row_info->width; + + sp = row; + dp = row; + shift = 6; + v = 0; + + for (i = 0; i < row_width; i++) + { + png_byte value; + + value = (png_byte)(*sp & 0x03); + v |= (value << shift); + + if (shift == 0) + { + shift = 6; + *dp = (png_byte)v; + dp++; + v = 0; + } + + else + shift -= 2; + + sp++; + } + + if (shift != 6) + *dp = (png_byte)v; + + break; + } + + case 4: + { + png_bytep sp, dp; + int shift, v; + png_uint_32 i; + png_uint_32 row_width = row_info->width; + + sp = row; + dp = row; + shift = 4; + v = 0; + + for (i = 0; i < row_width; i++) + { + png_byte value; + + value = (png_byte)(*sp & 0x0f); + v |= (value << shift); + + if (shift == 0) + { + shift = 4; + *dp = (png_byte)v; + dp++; + v = 0; + } + + else + shift -= 4; + + sp++; + } + + if (shift != 4) + *dp = (png_byte)v; + + break; + } + + default: + break; + } + + row_info->bit_depth = (png_byte)bit_depth; + row_info->pixel_depth = (png_byte)(bit_depth * row_info->channels); + row_info->rowbytes = PNG_ROWBYTES(row_info->pixel_depth, + row_info->width); + } +} +#endif + +#ifdef PNG_WRITE_SHIFT_SUPPORTED +/* Shift pixel values to take advantage of whole range. Pass the + * true number of bits in bit_depth. The row should be packed + * according to row_info->bit_depth. Thus, if you had a row of + * bit depth 4, but the pixels only had values from 0 to 7, you + * would pass 3 as bit_depth, and this routine would translate the + * data to 0 to 15. + */ +static void +png_do_shift(png_row_infop row_info, png_bytep row, + png_const_color_8p bit_depth) +{ + png_debug(1, "in png_do_shift"); + + if (row_info->color_type != PNG_COLOR_TYPE_PALETTE) + { + int shift_start[4], shift_dec[4]; + int channels = 0; + + if (row_info->color_type & PNG_COLOR_MASK_COLOR) + { + shift_start[channels] = row_info->bit_depth - bit_depth->red; + shift_dec[channels] = bit_depth->red; + channels++; + + shift_start[channels] = row_info->bit_depth - bit_depth->green; + shift_dec[channels] = bit_depth->green; + channels++; + + shift_start[channels] = row_info->bit_depth - bit_depth->blue; + shift_dec[channels] = bit_depth->blue; + channels++; + } + + else + { + shift_start[channels] = row_info->bit_depth - bit_depth->gray; + shift_dec[channels] = bit_depth->gray; + channels++; + } + + if (row_info->color_type & PNG_COLOR_MASK_ALPHA) + { + shift_start[channels] = row_info->bit_depth - bit_depth->alpha; + shift_dec[channels] = bit_depth->alpha; + channels++; + } + + /* With low row depths, could only be grayscale, so one channel */ + if (row_info->bit_depth < 8) + { + png_bytep bp = row; + png_size_t i; + unsigned int mask; + png_size_t row_bytes = row_info->rowbytes; + + if (bit_depth->gray == 1 && row_info->bit_depth == 2) + mask = 0x55; + + else if (row_info->bit_depth == 4 && bit_depth->gray == 3) + mask = 0x11; + + else + mask = 0xff; + + for (i = 0; i < row_bytes; i++, bp++) + { + int j; + unsigned int v, out; + + v = *bp; + out = 0; + + for (j = shift_start[0]; j > -shift_dec[0]; j -= shift_dec[0]) + { + if (j > 0) + out |= v << j; + + else + out |= (v >> (-j)) & mask; + } + + *bp = (png_byte)(out & 0xff); + } + } + + else if (row_info->bit_depth == 8) + { + png_bytep bp = row; + png_uint_32 i; + png_uint_32 istop = channels * row_info->width; + + for (i = 0; i < istop; i++, bp++) + { + + const unsigned int c = i%channels; + int j; + unsigned int v, out; + + v = *bp; + out = 0; + + for (j = shift_start[c]; j > -shift_dec[c]; j -= shift_dec[c]) + { + if (j > 0) + out |= v << j; + + else + out |= v >> (-j); + } + + *bp = (png_byte)(out & 0xff); + } + } + + else + { + png_bytep bp; + png_uint_32 i; + png_uint_32 istop = channels * row_info->width; + + for (bp = row, i = 0; i < istop; i++) + { + const unsigned int c = i%channels; + int j; + unsigned int value, v; + + v = png_get_uint_16(bp); + value = 0; + + for (j = shift_start[c]; j > -shift_dec[c]; j -= shift_dec[c]) + { + if (j > 0) + value |= v << j; + + else + value |= v >> (-j); + } + *bp++ = (png_byte)((value >> 8) & 0xff); + *bp++ = (png_byte)(value & 0xff); + } + } + } +} +#endif + +#ifdef PNG_WRITE_SWAP_ALPHA_SUPPORTED +static void +png_do_write_swap_alpha(png_row_infop row_info, png_bytep row) +{ + png_debug(1, "in png_do_write_swap_alpha"); + + { + if (row_info->color_type == PNG_COLOR_TYPE_RGB_ALPHA) + { + if (row_info->bit_depth == 8) + { + /* This converts from ARGB to RGBA */ + png_bytep sp, dp; + png_uint_32 i; + png_uint_32 row_width = row_info->width; + + for (i = 0, sp = dp = row; i < row_width; i++) + { + png_byte save = *(sp++); + *(dp++) = *(sp++); + *(dp++) = *(sp++); + *(dp++) = *(sp++); + *(dp++) = save; + } + } + +#ifdef PNG_WRITE_16BIT_SUPPORTED + else + { + /* This converts from AARRGGBB to RRGGBBAA */ + png_bytep sp, dp; + png_uint_32 i; + png_uint_32 row_width = row_info->width; + + for (i = 0, sp = dp = row; i < row_width; i++) + { + png_byte save[2]; + save[0] = *(sp++); + save[1] = *(sp++); + *(dp++) = *(sp++); + *(dp++) = *(sp++); + *(dp++) = *(sp++); + *(dp++) = *(sp++); + *(dp++) = *(sp++); + *(dp++) = *(sp++); + *(dp++) = save[0]; + *(dp++) = save[1]; + } + } +#endif /* PNG_WRITE_16BIT_SUPPORTED */ + } + + else if (row_info->color_type == PNG_COLOR_TYPE_GRAY_ALPHA) + { + if (row_info->bit_depth == 8) + { + /* This converts from AG to GA */ + png_bytep sp, dp; + png_uint_32 i; + png_uint_32 row_width = row_info->width; + + for (i = 0, sp = dp = row; i < row_width; i++) + { + png_byte save = *(sp++); + *(dp++) = *(sp++); + *(dp++) = save; + } + } + +#ifdef PNG_WRITE_16BIT_SUPPORTED + else + { + /* This converts from AAGG to GGAA */ + png_bytep sp, dp; + png_uint_32 i; + png_uint_32 row_width = row_info->width; + + for (i = 0, sp = dp = row; i < row_width; i++) + { + png_byte save[2]; + save[0] = *(sp++); + save[1] = *(sp++); + *(dp++) = *(sp++); + *(dp++) = *(sp++); + *(dp++) = save[0]; + *(dp++) = save[1]; + } + } +#endif /* PNG_WRITE_16BIT_SUPPORTED */ + } + } +} +#endif + +#ifdef PNG_WRITE_INVERT_ALPHA_SUPPORTED +static void +png_do_write_invert_alpha(png_row_infop row_info, png_bytep row) +{ + png_debug(1, "in png_do_write_invert_alpha"); + + { + if (row_info->color_type == PNG_COLOR_TYPE_RGB_ALPHA) + { + if (row_info->bit_depth == 8) + { + /* This inverts the alpha channel in RGBA */ + png_bytep sp, dp; + png_uint_32 i; + png_uint_32 row_width = row_info->width; + + for (i = 0, sp = dp = row; i < row_width; i++) + { + /* Does nothing + *(dp++) = *(sp++); + *(dp++) = *(sp++); + *(dp++) = *(sp++); + */ + sp+=3; dp = sp; + *(dp++) = (png_byte)(255 - *(sp++)); + } + } + +#ifdef PNG_WRITE_16BIT_SUPPORTED + else + { + /* This inverts the alpha channel in RRGGBBAA */ + png_bytep sp, dp; + png_uint_32 i; + png_uint_32 row_width = row_info->width; + + for (i = 0, sp = dp = row; i < row_width; i++) + { + /* Does nothing + *(dp++) = *(sp++); + *(dp++) = *(sp++); + *(dp++) = *(sp++); + *(dp++) = *(sp++); + *(dp++) = *(sp++); + *(dp++) = *(sp++); + */ + sp+=6; dp = sp; + *(dp++) = (png_byte)(255 - *(sp++)); + *(dp++) = (png_byte)(255 - *(sp++)); + } + } +#endif /* PNG_WRITE_16BIT_SUPPORTED */ + } + + else if (row_info->color_type == PNG_COLOR_TYPE_GRAY_ALPHA) + { + if (row_info->bit_depth == 8) + { + /* This inverts the alpha channel in GA */ + png_bytep sp, dp; + png_uint_32 i; + png_uint_32 row_width = row_info->width; + + for (i = 0, sp = dp = row; i < row_width; i++) + { + *(dp++) = *(sp++); + *(dp++) = (png_byte)(255 - *(sp++)); + } + } + +#ifdef PNG_WRITE_16BIT_SUPPORTED + else + { + /* This inverts the alpha channel in GGAA */ + png_bytep sp, dp; + png_uint_32 i; + png_uint_32 row_width = row_info->width; + + for (i = 0, sp = dp = row; i < row_width; i++) + { + /* Does nothing + *(dp++) = *(sp++); + *(dp++) = *(sp++); + */ + sp+=2; dp = sp; + *(dp++) = (png_byte)(255 - *(sp++)); + *(dp++) = (png_byte)(255 - *(sp++)); + } + } +#endif /* PNG_WRITE_16BIT_SUPPORTED */ + } + } +} +#endif + +/* Transform the data according to the user's wishes. The order of + * transformations is significant. + */ +void /* PRIVATE */ +png_do_write_transformations(png_structrp png_ptr, png_row_infop row_info) +{ + png_debug(1, "in png_do_write_transformations"); + + if (png_ptr == NULL) + return; + +#ifdef PNG_WRITE_USER_TRANSFORM_SUPPORTED + if (png_ptr->transformations & PNG_USER_TRANSFORM) + if (png_ptr->write_user_transform_fn != NULL) + (*(png_ptr->write_user_transform_fn)) /* User write transform + function */ + (png_ptr, /* png_ptr */ + row_info, /* row_info: */ + /* png_uint_32 width; width of row */ + /* png_size_t rowbytes; number of bytes in row */ + /* png_byte color_type; color type of pixels */ + /* png_byte bit_depth; bit depth of samples */ + /* png_byte channels; number of channels (1-4) */ + /* png_byte pixel_depth; bits per pixel (depth*channels) */ + png_ptr->row_buf + 1); /* start of pixel data for row */ +#endif + +#ifdef PNG_WRITE_FILLER_SUPPORTED + if (png_ptr->transformations & PNG_FILLER) + png_do_strip_channel(row_info, png_ptr->row_buf + 1, + !(png_ptr->flags & PNG_FLAG_FILLER_AFTER)); +#endif + +#ifdef PNG_WRITE_PACKSWAP_SUPPORTED + if (png_ptr->transformations & PNG_PACKSWAP) + png_do_packswap(row_info, png_ptr->row_buf + 1); +#endif + +#ifdef PNG_WRITE_PACK_SUPPORTED + if (png_ptr->transformations & PNG_PACK) + png_do_pack(row_info, png_ptr->row_buf + 1, + (png_uint_32)png_ptr->bit_depth); +#endif + +#ifdef PNG_WRITE_SWAP_SUPPORTED + if (png_ptr->transformations & PNG_SWAP_BYTES) + png_do_swap(row_info, png_ptr->row_buf + 1); +#endif + +#ifdef PNG_WRITE_SHIFT_SUPPORTED + if (png_ptr->transformations & PNG_SHIFT) + png_do_shift(row_info, png_ptr->row_buf + 1, + &(png_ptr->shift)); +#endif + +#ifdef PNG_WRITE_SWAP_ALPHA_SUPPORTED + if (png_ptr->transformations & PNG_SWAP_ALPHA) + png_do_write_swap_alpha(row_info, png_ptr->row_buf + 1); +#endif + +#ifdef PNG_WRITE_INVERT_ALPHA_SUPPORTED + if (png_ptr->transformations & PNG_INVERT_ALPHA) + png_do_write_invert_alpha(row_info, png_ptr->row_buf + 1); +#endif + +#ifdef PNG_WRITE_BGR_SUPPORTED + if (png_ptr->transformations & PNG_BGR) + png_do_bgr(row_info, png_ptr->row_buf + 1); +#endif + +#ifdef PNG_WRITE_INVERT_SUPPORTED + if (png_ptr->transformations & PNG_INVERT_MONO) + png_do_invert(row_info, png_ptr->row_buf + 1); +#endif +} +#endif /* PNG_WRITE_TRANSFORMS_SUPPORTED */ +#endif /* PNG_WRITE_SUPPORTED */ diff --git a/png/pngwutil.c b/png/pngwutil.c new file mode 100644 index 0000000..cfc3312 --- /dev/null +++ b/png/pngwutil.c @@ -0,0 +1,3026 @@ + +/* pngwutil.c - utilities to write a PNG file + * + * Last changed in libpng 1.6.11 [June 12, 2014] + * Copyright (c) 1998-2014 Glenn Randers-Pehrson + * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) + * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) + * + * This code is released under the libpng license. + * For conditions of distribution and use, see the disclaimer + * and license in png.h + */ + +#include "pngpriv.h" + +#ifdef PNG_WRITE_SUPPORTED + +#ifdef PNG_WRITE_INT_FUNCTIONS_SUPPORTED +/* Place a 32-bit number into a buffer in PNG byte order. We work + * with unsigned numbers for convenience, although one supported + * ancillary chunk uses signed (two's complement) numbers. + */ +void PNGAPI +png_save_uint_32(png_bytep buf, png_uint_32 i) +{ + buf[0] = (png_byte)((i >> 24) & 0xff); + buf[1] = (png_byte)((i >> 16) & 0xff); + buf[2] = (png_byte)((i >> 8) & 0xff); + buf[3] = (png_byte)(i & 0xff); +} + +/* Place a 16-bit number into a buffer in PNG byte order. + * The parameter is declared unsigned int, not png_uint_16, + * just to avoid potential problems on pre-ANSI C compilers. + */ +void PNGAPI +png_save_uint_16(png_bytep buf, unsigned int i) +{ + buf[0] = (png_byte)((i >> 8) & 0xff); + buf[1] = (png_byte)(i & 0xff); +} +#endif + +/* Simple function to write the signature. If we have already written + * the magic bytes of the signature, or more likely, the PNG stream is + * being embedded into another stream and doesn't need its own signature, + * we should call png_set_sig_bytes() to tell libpng how many of the + * bytes have already been written. + */ +void PNGAPI +png_write_sig(png_structrp png_ptr) +{ + png_byte png_signature[8] = {137, 80, 78, 71, 13, 10, 26, 10}; + +#ifdef PNG_IO_STATE_SUPPORTED + /* Inform the I/O callback that the signature is being written */ + png_ptr->io_state = PNG_IO_WRITING | PNG_IO_SIGNATURE; +#endif + + /* Write the rest of the 8 byte signature */ + png_write_data(png_ptr, &png_signature[png_ptr->sig_bytes], + (png_size_t)(8 - png_ptr->sig_bytes)); + + if (png_ptr->sig_bytes < 3) + png_ptr->mode |= PNG_HAVE_PNG_SIGNATURE; +} + +/* Write the start of a PNG chunk. The type is the chunk type. + * The total_length is the sum of the lengths of all the data you will be + * passing in png_write_chunk_data(). + */ +static void +png_write_chunk_header(png_structrp png_ptr, png_uint_32 chunk_name, + png_uint_32 length) +{ + png_byte buf[8]; + +#if defined(PNG_DEBUG) && (PNG_DEBUG > 0) + PNG_CSTRING_FROM_CHUNK(buf, chunk_name); + png_debug2(0, "Writing %s chunk, length = %lu", buf, (unsigned long)length); +#endif + + if (png_ptr == NULL) + return; + +#ifdef PNG_IO_STATE_SUPPORTED + /* Inform the I/O callback that the chunk header is being written. + * PNG_IO_CHUNK_HDR requires a single I/O call. + */ + png_ptr->io_state = PNG_IO_WRITING | PNG_IO_CHUNK_HDR; +#endif + + /* Write the length and the chunk name */ + png_save_uint_32(buf, length); + png_save_uint_32(buf + 4, chunk_name); + png_write_data(png_ptr, buf, 8); + + /* Put the chunk name into png_ptr->chunk_name */ + png_ptr->chunk_name = chunk_name; + + /* Reset the crc and run it over the chunk name */ + png_reset_crc(png_ptr); + + png_calculate_crc(png_ptr, buf + 4, 4); + +#ifdef PNG_IO_STATE_SUPPORTED + /* Inform the I/O callback that chunk data will (possibly) be written. + * PNG_IO_CHUNK_DATA does NOT require a specific number of I/O calls. + */ + png_ptr->io_state = PNG_IO_WRITING | PNG_IO_CHUNK_DATA; +#endif +} + +void PNGAPI +png_write_chunk_start(png_structrp png_ptr, png_const_bytep chunk_string, + png_uint_32 length) +{ + png_write_chunk_header(png_ptr, PNG_CHUNK_FROM_STRING(chunk_string), length); +} + +/* Write the data of a PNG chunk started with png_write_chunk_header(). + * Note that multiple calls to this function are allowed, and that the + * sum of the lengths from these calls *must* add up to the total_length + * given to png_write_chunk_header(). + */ +void PNGAPI +png_write_chunk_data(png_structrp png_ptr, png_const_bytep data, + png_size_t length) +{ + /* Write the data, and run the CRC over it */ + if (png_ptr == NULL) + return; + + if (data != NULL && length > 0) + { + png_write_data(png_ptr, data, length); + + /* Update the CRC after writing the data, + * in case that the user I/O routine alters it. + */ + png_calculate_crc(png_ptr, data, length); + } +} + +/* Finish a chunk started with png_write_chunk_header(). */ +void PNGAPI +png_write_chunk_end(png_structrp png_ptr) +{ + png_byte buf[4]; + + if (png_ptr == NULL) return; + +#ifdef PNG_IO_STATE_SUPPORTED + /* Inform the I/O callback that the chunk CRC is being written. + * PNG_IO_CHUNK_CRC requires a single I/O function call. + */ + png_ptr->io_state = PNG_IO_WRITING | PNG_IO_CHUNK_CRC; +#endif + + /* Write the crc in a single operation */ + png_save_uint_32(buf, png_ptr->crc); + + png_write_data(png_ptr, buf, (png_size_t)4); +} + +/* Write a PNG chunk all at once. The type is an array of ASCII characters + * representing the chunk name. The array must be at least 4 bytes in + * length, and does not need to be null terminated. To be safe, pass the + * pre-defined chunk names here, and if you need a new one, define it + * where the others are defined. The length is the length of the data. + * All the data must be present. If that is not possible, use the + * png_write_chunk_start(), png_write_chunk_data(), and png_write_chunk_end() + * functions instead. + */ +static void +png_write_complete_chunk(png_structrp png_ptr, png_uint_32 chunk_name, + png_const_bytep data, png_size_t length) +{ + if (png_ptr == NULL) + return; + + /* On 64 bit architectures 'length' may not fit in a png_uint_32. */ + if (length > PNG_UINT_31_MAX) + png_error(png_ptr, "length exceeds PNG maxima"); + + png_write_chunk_header(png_ptr, chunk_name, (png_uint_32)length); + png_write_chunk_data(png_ptr, data, length); + png_write_chunk_end(png_ptr); +} + +/* This is the API that calls the internal function above. */ +void PNGAPI +png_write_chunk(png_structrp png_ptr, png_const_bytep chunk_string, + png_const_bytep data, png_size_t length) +{ + png_write_complete_chunk(png_ptr, PNG_CHUNK_FROM_STRING(chunk_string), data, + length); +} + +/* This is used below to find the size of an image to pass to png_deflate_claim, + * so it only needs to be accurate if the size is less than 16384 bytes (the + * point at which a lower LZ window size can be used.) + */ +static png_alloc_size_t +png_image_size(png_structrp png_ptr) +{ + /* Only return sizes up to the maximum of a png_uint_32, do this by limiting + * the width and height used to 15 bits. + */ + png_uint_32 h = png_ptr->height; + + if (png_ptr->rowbytes < 32768 && h < 32768) + { + if (png_ptr->interlaced) + { + /* Interlacing makes the image larger because of the replication of + * both the filter byte and the padding to a byte boundary. + */ + png_uint_32 w = png_ptr->width; + unsigned int pd = png_ptr->pixel_depth; + png_alloc_size_t cb_base; + int pass; + + for (cb_base=0, pass=0; pass<=6; ++pass) + { + png_uint_32 pw = PNG_PASS_COLS(w, pass); + + if (pw > 0) + cb_base += (PNG_ROWBYTES(pd, pw)+1) * PNG_PASS_ROWS(h, pass); + } + + return cb_base; + } + + else + return (png_ptr->rowbytes+1) * h; + } + + else + return 0xffffffffU; +} + +#ifdef PNG_WRITE_OPTIMIZE_CMF_SUPPORTED + /* This is the code to hack the first two bytes of the deflate stream (the + * deflate header) to correct the windowBits value to match the actual data + * size. Note that the second argument is the *uncompressed* size but the + * first argument is the *compressed* data (and it must be deflate + * compressed.) + */ +static void +optimize_cmf(png_bytep data, png_alloc_size_t data_size) +{ + /* Optimize the CMF field in the zlib stream. The resultant zlib stream is + * still compliant to the stream specification. + */ + if (data_size <= 16384) /* else windowBits must be 15 */ + { + unsigned int z_cmf = data[0]; /* zlib compression method and flags */ + + if ((z_cmf & 0x0f) == 8 && (z_cmf & 0xf0) <= 0x70) + { + unsigned int z_cinfo; + unsigned int half_z_window_size; + + z_cinfo = z_cmf >> 4; + half_z_window_size = 1U << (z_cinfo + 7); + + if (data_size <= half_z_window_size) /* else no change */ + { + unsigned int tmp; + + do + { + half_z_window_size >>= 1; + --z_cinfo; + } + while (z_cinfo > 0 && data_size <= half_z_window_size); + + z_cmf = (z_cmf & 0x0f) | (z_cinfo << 4); + + data[0] = (png_byte)z_cmf; + tmp = data[1] & 0xe0; + tmp += 0x1f - ((z_cmf << 8) + tmp) % 0x1f; + data[1] = (png_byte)tmp; + } + } + } +} +#else +# define optimize_cmf(dp,dl) ((void)0) +#endif /* PNG_WRITE_OPTIMIZE_CMF_SUPPORTED */ + +/* Initialize the compressor for the appropriate type of compression. */ +static int +png_deflate_claim(png_structrp png_ptr, png_uint_32 owner, + png_alloc_size_t data_size) +{ + if (png_ptr->zowner != 0) + { + char msg[64]; + + PNG_STRING_FROM_CHUNK(msg, owner); + msg[4] = ':'; + msg[5] = ' '; + PNG_STRING_FROM_CHUNK(msg+6, png_ptr->zowner); + /* So the message that results is " using zstream"; this is an + * internal error, but is very useful for debugging. i18n requirements + * are minimal. + */ + (void)png_safecat(msg, (sizeof msg), 10, " using zstream"); +# if PNG_LIBPNG_BUILD_BASE_TYPE >= PNG_LIBPNG_BUILD_RC + png_warning(png_ptr, msg); + + /* Attempt sane error recovery */ + if (png_ptr->zowner == png_IDAT) /* don't steal from IDAT */ + { + png_ptr->zstream.msg = PNGZ_MSG_CAST("in use by IDAT"); + return Z_STREAM_ERROR; + } + + png_ptr->zowner = 0; +# else + png_error(png_ptr, msg); +# endif + } + + { + int level = png_ptr->zlib_level; + int method = png_ptr->zlib_method; + int windowBits = png_ptr->zlib_window_bits; + int memLevel = png_ptr->zlib_mem_level; + int strategy; /* set below */ + int ret; /* zlib return code */ + + if (owner == png_IDAT) + { + if (png_ptr->flags & PNG_FLAG_ZLIB_CUSTOM_STRATEGY) + strategy = png_ptr->zlib_strategy; + + else if (png_ptr->do_filter != PNG_FILTER_NONE) + strategy = PNG_Z_DEFAULT_STRATEGY; + + else + strategy = PNG_Z_DEFAULT_NOFILTER_STRATEGY; + } + + else + { +# ifdef PNG_WRITE_CUSTOMIZE_ZTXT_COMPRESSION_SUPPORTED + level = png_ptr->zlib_text_level; + method = png_ptr->zlib_text_method; + windowBits = png_ptr->zlib_text_window_bits; + memLevel = png_ptr->zlib_text_mem_level; + strategy = png_ptr->zlib_text_strategy; +# else + /* If customization is not supported the values all come from the + * IDAT values except for the strategy, which is fixed to the + * default. (This is the pre-1.6.0 behavior too, although it was + * implemented in a very different way.) + */ + strategy = Z_DEFAULT_STRATEGY; +# endif + } + + /* Adjust 'windowBits' down if larger than 'data_size'; to stop this + * happening just pass 32768 as the data_size parameter. Notice that zlib + * requires an extra 262 bytes in the window in addition to the data to be + * able to see the whole of the data, so if data_size+262 takes us to the + * next windowBits size we need to fix up the value later. (Because even + * though deflate needs the extra window, inflate does not!) + */ + if (data_size <= 16384) + { + /* IMPLEMENTATION NOTE: this 'half_window_size' stuff is only here to + * work round a Microsoft Visual C misbehavior which, contrary to C-90, + * widens the result of the following shift to 64-bits if (and, + * apparently, only if) it is used in a test. + */ + unsigned int half_window_size = 1U << (windowBits-1); + + while (data_size + 262 <= half_window_size) + { + half_window_size >>= 1; + --windowBits; + } + } + + /* Check against the previous initialized values, if any. */ + if ((png_ptr->flags & PNG_FLAG_ZSTREAM_INITIALIZED) && + (png_ptr->zlib_set_level != level || + png_ptr->zlib_set_method != method || + png_ptr->zlib_set_window_bits != windowBits || + png_ptr->zlib_set_mem_level != memLevel || + png_ptr->zlib_set_strategy != strategy)) + { + if (deflateEnd(&png_ptr->zstream) != Z_OK) + png_warning(png_ptr, "deflateEnd failed (ignored)"); + + png_ptr->flags &= ~PNG_FLAG_ZSTREAM_INITIALIZED; + } + + /* For safety clear out the input and output pointers (currently zlib + * doesn't use them on Init, but it might in the future). + */ + png_ptr->zstream.next_in = NULL; + png_ptr->zstream.avail_in = 0; + png_ptr->zstream.next_out = NULL; + png_ptr->zstream.avail_out = 0; + + /* Now initialize if required, setting the new parameters, otherwise just + * to a simple reset to the previous parameters. + */ + if (png_ptr->flags & PNG_FLAG_ZSTREAM_INITIALIZED) + ret = deflateReset(&png_ptr->zstream); + + else + { + ret = deflateInit2(&png_ptr->zstream, level, method, windowBits, + memLevel, strategy); + + if (ret == Z_OK) + png_ptr->flags |= PNG_FLAG_ZSTREAM_INITIALIZED; + } + + /* The return code is from either deflateReset or deflateInit2; they have + * pretty much the same set of error codes. + */ + if (ret == Z_OK) + png_ptr->zowner = owner; + + else + png_zstream_error(png_ptr, ret); + + return ret; + } +} + +/* Clean up (or trim) a linked list of compression buffers. */ +void /* PRIVATE */ +png_free_buffer_list(png_structrp png_ptr, png_compression_bufferp *listp) +{ + png_compression_bufferp list = *listp; + + if (list != NULL) + { + *listp = NULL; + + do + { + png_compression_bufferp next = list->next; + + png_free(png_ptr, list); + list = next; + } + while (list != NULL); + } +} + +#ifdef PNG_WRITE_COMPRESSED_TEXT_SUPPORTED +/* This pair of functions encapsulates the operation of (a) compressing a + * text string, and (b) issuing it later as a series of chunk data writes. + * The compression_state structure is shared context for these functions + * set up by the caller to allow access to the relevant local variables. + * + * compression_buffer (new in 1.6.0) is just a linked list of zbuffer_size + * temporary buffers. From 1.6.0 it is retained in png_struct so that it will + * be correctly freed in the event of a write error (previous implementations + * just leaked memory.) + */ +typedef struct +{ + png_const_bytep input; /* The uncompressed input data */ + png_alloc_size_t input_len; /* Its length */ + png_uint_32 output_len; /* Final compressed length */ + png_byte output[1024]; /* First block of output */ +} compression_state; + +static void +png_text_compress_init(compression_state *comp, png_const_bytep input, + png_alloc_size_t input_len) +{ + comp->input = input; + comp->input_len = input_len; + comp->output_len = 0; +} + +/* Compress the data in the compression state input */ +static int +png_text_compress(png_structrp png_ptr, png_uint_32 chunk_name, + compression_state *comp, png_uint_32 prefix_len) +{ + int ret; + + /* To find the length of the output it is necessary to first compress the + * input, the result is buffered rather than using the two-pass algorithm + * that is used on the inflate side; deflate is assumed to be slower and a + * PNG writer is assumed to have more memory available than a PNG reader. + * + * IMPLEMENTATION NOTE: the zlib API deflateBound() can be used to find an + * upper limit on the output size, but it is always bigger than the input + * size so it is likely to be more efficient to use this linked-list + * approach. + */ + ret = png_deflate_claim(png_ptr, chunk_name, comp->input_len); + + if (ret != Z_OK) + return ret; + + /* Set up the compression buffers, we need a loop here to avoid overflowing a + * uInt. Use ZLIB_IO_MAX to limit the input. The output is always limited + * by the output buffer size, so there is no need to check that. Since this + * is ANSI-C we know that an 'int', hence a uInt, is always at least 16 bits + * in size. + */ + { + png_compression_bufferp *end = &png_ptr->zbuffer_list; + png_alloc_size_t input_len = comp->input_len; /* may be zero! */ + png_uint_32 output_len; + + /* zlib updates these for us: */ + png_ptr->zstream.next_in = PNGZ_INPUT_CAST(comp->input); + png_ptr->zstream.avail_in = 0; /* Set below */ + png_ptr->zstream.next_out = comp->output; + png_ptr->zstream.avail_out = (sizeof comp->output); + + output_len = png_ptr->zstream.avail_out; + + do + { + uInt avail_in = ZLIB_IO_MAX; + + if (avail_in > input_len) + avail_in = (uInt)input_len; + + input_len -= avail_in; + + png_ptr->zstream.avail_in = avail_in; + + if (png_ptr->zstream.avail_out == 0) + { + png_compression_buffer *next; + + /* Chunk data is limited to 2^31 bytes in length, so the prefix + * length must be counted here. + */ + if (output_len + prefix_len > PNG_UINT_31_MAX) + { + ret = Z_MEM_ERROR; + break; + } + + /* Need a new (malloc'ed) buffer, but there may be one present + * already. + */ + next = *end; + if (next == NULL) + { + next = png_voidcast(png_compression_bufferp, png_malloc_base + (png_ptr, PNG_COMPRESSION_BUFFER_SIZE(png_ptr))); + + if (next == NULL) + { + ret = Z_MEM_ERROR; + break; + } + + /* Link in this buffer (so that it will be freed later) */ + next->next = NULL; + *end = next; + } + + png_ptr->zstream.next_out = next->output; + png_ptr->zstream.avail_out = png_ptr->zbuffer_size; + output_len += png_ptr->zstream.avail_out; + + /* Move 'end' to the next buffer pointer. */ + end = &next->next; + } + + /* Compress the data */ + ret = deflate(&png_ptr->zstream, + input_len > 0 ? Z_NO_FLUSH : Z_FINISH); + + /* Claw back input data that was not consumed (because avail_in is + * reset above every time round the loop). + */ + input_len += png_ptr->zstream.avail_in; + png_ptr->zstream.avail_in = 0; /* safety */ + } + while (ret == Z_OK); + + /* There may be some space left in the last output buffer, this needs to + * be subtracted from output_len. + */ + output_len -= png_ptr->zstream.avail_out; + png_ptr->zstream.avail_out = 0; /* safety */ + comp->output_len = output_len; + + /* Now double check the output length, put in a custom message if it is + * too long. Otherwise ensure the z_stream::msg pointer is set to + * something. + */ + if (output_len + prefix_len >= PNG_UINT_31_MAX) + { + png_ptr->zstream.msg = PNGZ_MSG_CAST("compressed data too long"); + ret = Z_MEM_ERROR; + } + + else + png_zstream_error(png_ptr, ret); + + /* Reset zlib for another zTXt/iTXt or image data */ + png_ptr->zowner = 0; + + /* The only success case is Z_STREAM_END, input_len must be 0, if not this + * is an internal error. + */ + if (ret == Z_STREAM_END && input_len == 0) + { + /* Fix up the deflate header, if required */ + optimize_cmf(comp->output, comp->input_len); + + /* But Z_OK is returned, not Z_STREAM_END; this allows the claim + * function above to return Z_STREAM_END on an error (though it never + * does in the current versions of zlib.) + */ + return Z_OK; + } + + else + return ret; + } +} + +/* Ship the compressed text out via chunk writes */ +static void +png_write_compressed_data_out(png_structrp png_ptr, compression_state *comp) +{ + png_uint_32 output_len = comp->output_len; + png_const_bytep output = comp->output; + png_uint_32 avail = (sizeof comp->output); + png_compression_buffer *next = png_ptr->zbuffer_list; + + for (;;) + { + if (avail > output_len) + avail = output_len; + + png_write_chunk_data(png_ptr, output, avail); + + output_len -= avail; + + if (output_len == 0 || next == NULL) + break; + + avail = png_ptr->zbuffer_size; + output = next->output; + next = next->next; + } + + /* This is an internal error; 'next' must have been NULL! */ + if (output_len > 0) + png_error(png_ptr, "error writing ancillary chunked compressed data"); +} +#endif /* PNG_WRITE_COMPRESSED_TEXT_SUPPORTED */ + +#if defined(PNG_WRITE_TEXT_SUPPORTED) || defined(PNG_WRITE_pCAL_SUPPORTED) || \ + defined(PNG_WRITE_iCCP_SUPPORTED) || defined(PNG_WRITE_sPLT_SUPPORTED) +/* Check that the tEXt or zTXt keyword is valid per PNG 1.0 specification, + * and if invalid, correct the keyword rather than discarding the entire + * chunk. The PNG 1.0 specification requires keywords 1-79 characters in + * length, forbids leading or trailing whitespace, multiple internal spaces, + * and the non-break space (0x80) from ISO 8859-1. Returns keyword length. + * + * The 'new_key' buffer must be 80 characters in size (for the keyword plus a + * trailing '\0'). If this routine returns 0 then there was no keyword, or a + * valid one could not be generated, and the caller must png_error. + */ +static png_uint_32 +png_check_keyword(png_structrp png_ptr, png_const_charp key, png_bytep new_key) +{ + png_const_charp orig_key = key; + png_uint_32 key_len = 0; + int bad_character = 0; + int space = 1; + + png_debug(1, "in png_check_keyword"); + + if (key == NULL) + { + *new_key = 0; + return 0; + } + + while (*key && key_len < 79) + { + png_byte ch = (png_byte)(0xff & *key++); + + if ((ch > 32 && ch <= 126) || (ch >= 161 /*&& ch <= 255*/)) + *new_key++ = ch, ++key_len, space = 0; + + else if (space == 0) + { + /* A space or an invalid character when one wasn't seen immediately + * before; output just a space. + */ + *new_key++ = 32, ++key_len, space = 1; + + /* If the character was not a space then it is invalid. */ + if (ch != 32) + bad_character = ch; + } + + else if (bad_character == 0) + bad_character = ch; /* just skip it, record the first error */ + } + + if (key_len > 0 && space) /* trailing space */ + { + --key_len, --new_key; + if (bad_character == 0) + bad_character = 32; + } + + /* Terminate the keyword */ + *new_key = 0; + + if (key_len == 0) + return 0; + + /* Try to only output one warning per keyword: */ + if (*key) /* keyword too long */ + png_warning(png_ptr, "keyword truncated"); + + else if (bad_character != 0) + { + PNG_WARNING_PARAMETERS(p) + + png_warning_parameter(p, 1, orig_key); + png_warning_parameter_signed(p, 2, PNG_NUMBER_FORMAT_02x, bad_character); + + png_formatted_warning(png_ptr, p, "keyword \"@1\": bad character '0x@2'"); + } + + return key_len; +} +#endif + +/* Write the IHDR chunk, and update the png_struct with the necessary + * information. Note that the rest of this code depends upon this + * information being correct. + */ +void /* PRIVATE */ +png_write_IHDR(png_structrp png_ptr, png_uint_32 width, png_uint_32 height, + int bit_depth, int color_type, int compression_type, int filter_type, + int interlace_type) +{ + png_byte buf[13]; /* Buffer to store the IHDR info */ + + png_debug(1, "in png_write_IHDR"); + + /* Check that we have valid input data from the application info */ + switch (color_type) + { + case PNG_COLOR_TYPE_GRAY: + switch (bit_depth) + { + case 1: + case 2: + case 4: + case 8: +#ifdef PNG_WRITE_16BIT_SUPPORTED + case 16: +#endif + png_ptr->channels = 1; break; + + default: + png_error(png_ptr, + "Invalid bit depth for grayscale image"); + } + break; + + case PNG_COLOR_TYPE_RGB: +#ifdef PNG_WRITE_16BIT_SUPPORTED + if (bit_depth != 8 && bit_depth != 16) +#else + if (bit_depth != 8) +#endif + png_error(png_ptr, "Invalid bit depth for RGB image"); + + png_ptr->channels = 3; + break; + + case PNG_COLOR_TYPE_PALETTE: + switch (bit_depth) + { + case 1: + case 2: + case 4: + case 8: + png_ptr->channels = 1; + break; + + default: + png_error(png_ptr, "Invalid bit depth for paletted image"); + } + break; + + case PNG_COLOR_TYPE_GRAY_ALPHA: + if (bit_depth != 8 && bit_depth != 16) + png_error(png_ptr, "Invalid bit depth for grayscale+alpha image"); + + png_ptr->channels = 2; + break; + + case PNG_COLOR_TYPE_RGB_ALPHA: +#ifdef PNG_WRITE_16BIT_SUPPORTED + if (bit_depth != 8 && bit_depth != 16) +#else + if (bit_depth != 8) +#endif + png_error(png_ptr, "Invalid bit depth for RGBA image"); + + png_ptr->channels = 4; + break; + + default: + png_error(png_ptr, "Invalid image color type specified"); + } + + if (compression_type != PNG_COMPRESSION_TYPE_BASE) + { + png_warning(png_ptr, "Invalid compression type specified"); + compression_type = PNG_COMPRESSION_TYPE_BASE; + } + + /* Write filter_method 64 (intrapixel differencing) only if + * 1. Libpng was compiled with PNG_MNG_FEATURES_SUPPORTED and + * 2. Libpng did not write a PNG signature (this filter_method is only + * used in PNG datastreams that are embedded in MNG datastreams) and + * 3. The application called png_permit_mng_features with a mask that + * included PNG_FLAG_MNG_FILTER_64 and + * 4. The filter_method is 64 and + * 5. The color_type is RGB or RGBA + */ + if ( +#ifdef PNG_MNG_FEATURES_SUPPORTED + !((png_ptr->mng_features_permitted & PNG_FLAG_MNG_FILTER_64) && + ((png_ptr->mode&PNG_HAVE_PNG_SIGNATURE) == 0) && + (color_type == PNG_COLOR_TYPE_RGB || + color_type == PNG_COLOR_TYPE_RGB_ALPHA) && + (filter_type == PNG_INTRAPIXEL_DIFFERENCING)) && +#endif + filter_type != PNG_FILTER_TYPE_BASE) + { + png_warning(png_ptr, "Invalid filter type specified"); + filter_type = PNG_FILTER_TYPE_BASE; + } + +#ifdef PNG_WRITE_INTERLACING_SUPPORTED + if (interlace_type != PNG_INTERLACE_NONE && + interlace_type != PNG_INTERLACE_ADAM7) + { + png_warning(png_ptr, "Invalid interlace type specified"); + interlace_type = PNG_INTERLACE_ADAM7; + } +#else + interlace_type=PNG_INTERLACE_NONE; +#endif + + /* Save the relevent information */ + png_ptr->bit_depth = (png_byte)bit_depth; + png_ptr->color_type = (png_byte)color_type; + png_ptr->interlaced = (png_byte)interlace_type; +#ifdef PNG_MNG_FEATURES_SUPPORTED + png_ptr->filter_type = (png_byte)filter_type; +#endif + png_ptr->compression_type = (png_byte)compression_type; + png_ptr->width = width; + png_ptr->height = height; + + png_ptr->pixel_depth = (png_byte)(bit_depth * png_ptr->channels); + png_ptr->rowbytes = PNG_ROWBYTES(png_ptr->pixel_depth, width); + /* Set the usr info, so any transformations can modify it */ + png_ptr->usr_width = png_ptr->width; + png_ptr->usr_bit_depth = png_ptr->bit_depth; + png_ptr->usr_channels = png_ptr->channels; + + /* Pack the header information into the buffer */ + png_save_uint_32(buf, width); + png_save_uint_32(buf + 4, height); + buf[8] = (png_byte)bit_depth; + buf[9] = (png_byte)color_type; + buf[10] = (png_byte)compression_type; + buf[11] = (png_byte)filter_type; + buf[12] = (png_byte)interlace_type; + + /* Write the chunk */ + png_write_complete_chunk(png_ptr, png_IHDR, buf, (png_size_t)13); + + if ((png_ptr->do_filter) == PNG_NO_FILTERS) + { + if (png_ptr->color_type == PNG_COLOR_TYPE_PALETTE || + png_ptr->bit_depth < 8) + png_ptr->do_filter = PNG_FILTER_NONE; + + else + png_ptr->do_filter = PNG_ALL_FILTERS; + } + + png_ptr->mode = PNG_HAVE_IHDR; /* not READY_FOR_ZTXT */ +} + +/* Write the palette. We are careful not to trust png_color to be in the + * correct order for PNG, so people can redefine it to any convenient + * structure. + */ +void /* PRIVATE */ +png_write_PLTE(png_structrp png_ptr, png_const_colorp palette, + png_uint_32 num_pal) +{ + png_uint_32 i; + png_const_colorp pal_ptr; + png_byte buf[3]; + + png_debug(1, "in png_write_PLTE"); + + if (( +#ifdef PNG_MNG_FEATURES_SUPPORTED + !(png_ptr->mng_features_permitted & PNG_FLAG_MNG_EMPTY_PLTE) && +#endif + num_pal == 0) || num_pal > 256) + { + if (png_ptr->color_type == PNG_COLOR_TYPE_PALETTE) + { + png_error(png_ptr, "Invalid number of colors in palette"); + } + + else + { + png_warning(png_ptr, "Invalid number of colors in palette"); + return; + } + } + + if (!(png_ptr->color_type&PNG_COLOR_MASK_COLOR)) + { + png_warning(png_ptr, + "Ignoring request to write a PLTE chunk in grayscale PNG"); + + return; + } + + png_ptr->num_palette = (png_uint_16)num_pal; + png_debug1(3, "num_palette = %d", png_ptr->num_palette); + + png_write_chunk_header(png_ptr, png_PLTE, (png_uint_32)(num_pal * 3)); +#ifdef PNG_POINTER_INDEXING_SUPPORTED + + for (i = 0, pal_ptr = palette; i < num_pal; i++, pal_ptr++) + { + buf[0] = pal_ptr->red; + buf[1] = pal_ptr->green; + buf[2] = pal_ptr->blue; + png_write_chunk_data(png_ptr, buf, (png_size_t)3); + } + +#else + /* This is a little slower but some buggy compilers need to do this + * instead + */ + pal_ptr=palette; + + for (i = 0; i < num_pal; i++) + { + buf[0] = pal_ptr[i].red; + buf[1] = pal_ptr[i].green; + buf[2] = pal_ptr[i].blue; + png_write_chunk_data(png_ptr, buf, (png_size_t)3); + } + +#endif + png_write_chunk_end(png_ptr); + png_ptr->mode |= PNG_HAVE_PLTE; +} + +/* This is similar to png_text_compress, above, except that it does not require + * all of the data at once and, instead of buffering the compressed result, + * writes it as IDAT chunks. Unlike png_text_compress it *can* png_error out + * because it calls the write interface. As a result it does its own error + * reporting and does not return an error code. In the event of error it will + * just call png_error. The input data length may exceed 32-bits. The 'flush' + * parameter is exactly the same as that to deflate, with the following + * meanings: + * + * Z_NO_FLUSH: normal incremental output of compressed data + * Z_SYNC_FLUSH: do a SYNC_FLUSH, used by png_write_flush + * Z_FINISH: this is the end of the input, do a Z_FINISH and clean up + * + * The routine manages the acquire and release of the png_ptr->zstream by + * checking and (at the end) clearing png_ptr->zowner, it does some sanity + * checks on the 'mode' flags while doing this. + */ +void /* PRIVATE */ +png_compress_IDAT(png_structrp png_ptr, png_const_bytep input, + png_alloc_size_t input_len, int flush) +{ + if (png_ptr->zowner != png_IDAT) + { + /* First time. Ensure we have a temporary buffer for compression and + * trim the buffer list if it has more than one entry to free memory. + * If 'WRITE_COMPRESSED_TEXT' is not set the list will never have been + * created at this point, but the check here is quick and safe. + */ + if (png_ptr->zbuffer_list == NULL) + { + png_ptr->zbuffer_list = png_voidcast(png_compression_bufferp, + png_malloc(png_ptr, PNG_COMPRESSION_BUFFER_SIZE(png_ptr))); + png_ptr->zbuffer_list->next = NULL; + } + + else + png_free_buffer_list(png_ptr, &png_ptr->zbuffer_list->next); + + /* It is a terminal error if we can't claim the zstream. */ + if (png_deflate_claim(png_ptr, png_IDAT, png_image_size(png_ptr)) != Z_OK) + png_error(png_ptr, png_ptr->zstream.msg); + + /* The output state is maintained in png_ptr->zstream, so it must be + * initialized here after the claim. + */ + png_ptr->zstream.next_out = png_ptr->zbuffer_list->output; + png_ptr->zstream.avail_out = png_ptr->zbuffer_size; + } + + /* Now loop reading and writing until all the input is consumed or an error + * terminates the operation. The _out values are maintained across calls to + * this function, but the input must be reset each time. + */ + png_ptr->zstream.next_in = PNGZ_INPUT_CAST(input); + png_ptr->zstream.avail_in = 0; /* set below */ + for (;;) + { + int ret; + + /* INPUT: from the row data */ + uInt avail = ZLIB_IO_MAX; + + if (avail > input_len) + avail = (uInt)input_len; /* safe because of the check */ + + png_ptr->zstream.avail_in = avail; + input_len -= avail; + + ret = deflate(&png_ptr->zstream, input_len > 0 ? Z_NO_FLUSH : flush); + + /* Include as-yet unconsumed input */ + input_len += png_ptr->zstream.avail_in; + png_ptr->zstream.avail_in = 0; + + /* OUTPUT: write complete IDAT chunks when avail_out drops to zero, note + * that these two zstream fields are preserved across the calls, therefore + * there is no need to set these up on entry to the loop. + */ + if (png_ptr->zstream.avail_out == 0) + { + png_bytep data = png_ptr->zbuffer_list->output; + uInt size = png_ptr->zbuffer_size; + + /* Write an IDAT containing the data then reset the buffer. The + * first IDAT may need deflate header optimization. + */ +# ifdef PNG_WRITE_OPTIMIZE_CMF_SUPPORTED + if (!(png_ptr->mode & PNG_HAVE_IDAT) && + png_ptr->compression_type == PNG_COMPRESSION_TYPE_BASE) + optimize_cmf(data, png_image_size(png_ptr)); +# endif + + png_write_complete_chunk(png_ptr, png_IDAT, data, size); + png_ptr->mode |= PNG_HAVE_IDAT; + + png_ptr->zstream.next_out = data; + png_ptr->zstream.avail_out = size; + + /* For SYNC_FLUSH or FINISH it is essential to keep calling zlib with + * the same flush parameter until it has finished output, for NO_FLUSH + * it doesn't matter. + */ + if (ret == Z_OK && flush != Z_NO_FLUSH) + continue; + } + + /* The order of these checks doesn't matter much; it just effect which + * possible error might be detected if multiple things go wrong at once. + */ + if (ret == Z_OK) /* most likely return code! */ + { + /* If all the input has been consumed then just return. If Z_FINISH + * was used as the flush parameter something has gone wrong if we get + * here. + */ + if (input_len == 0) + { + if (flush == Z_FINISH) + png_error(png_ptr, "Z_OK on Z_FINISH with output space"); + + return; + } + } + + else if (ret == Z_STREAM_END && flush == Z_FINISH) + { + /* This is the end of the IDAT data; any pending output must be + * flushed. For small PNG files we may still be at the beginning. + */ + png_bytep data = png_ptr->zbuffer_list->output; + uInt size = png_ptr->zbuffer_size - png_ptr->zstream.avail_out; + +# ifdef PNG_WRITE_OPTIMIZE_CMF_SUPPORTED + if (!(png_ptr->mode & PNG_HAVE_IDAT) && + png_ptr->compression_type == PNG_COMPRESSION_TYPE_BASE) + optimize_cmf(data, png_image_size(png_ptr)); +# endif + + png_write_complete_chunk(png_ptr, png_IDAT, data, size); + png_ptr->zstream.avail_out = 0; + png_ptr->zstream.next_out = NULL; + png_ptr->mode |= PNG_HAVE_IDAT | PNG_AFTER_IDAT; + + png_ptr->zowner = 0; /* Release the stream */ + return; + } + + else + { + /* This is an error condition. */ + png_zstream_error(png_ptr, ret); + png_error(png_ptr, png_ptr->zstream.msg); + } + } +} + +/* Write an IEND chunk */ +void /* PRIVATE */ +png_write_IEND(png_structrp png_ptr) +{ + png_debug(1, "in png_write_IEND"); + + png_write_complete_chunk(png_ptr, png_IEND, NULL, (png_size_t)0); + png_ptr->mode |= PNG_HAVE_IEND; +} + +#ifdef PNG_WRITE_gAMA_SUPPORTED +/* Write a gAMA chunk */ +void /* PRIVATE */ +png_write_gAMA_fixed(png_structrp png_ptr, png_fixed_point file_gamma) +{ + png_byte buf[4]; + + png_debug(1, "in png_write_gAMA"); + + /* file_gamma is saved in 1/100,000ths */ + png_save_uint_32(buf, (png_uint_32)file_gamma); + png_write_complete_chunk(png_ptr, png_gAMA, buf, (png_size_t)4); +} +#endif + +#ifdef PNG_WRITE_sRGB_SUPPORTED +/* Write a sRGB chunk */ +void /* PRIVATE */ +png_write_sRGB(png_structrp png_ptr, int srgb_intent) +{ + png_byte buf[1]; + + png_debug(1, "in png_write_sRGB"); + + if (srgb_intent >= PNG_sRGB_INTENT_LAST) + png_warning(png_ptr, + "Invalid sRGB rendering intent specified"); + + buf[0]=(png_byte)srgb_intent; + png_write_complete_chunk(png_ptr, png_sRGB, buf, (png_size_t)1); +} +#endif + +#ifdef PNG_WRITE_iCCP_SUPPORTED +/* Write an iCCP chunk */ +void /* PRIVATE */ +png_write_iCCP(png_structrp png_ptr, png_const_charp name, + png_const_bytep profile) +{ + png_uint_32 name_len; + png_uint_32 profile_len; + png_byte new_name[81]; /* 1 byte for the compression byte */ + compression_state comp; + png_uint_32 temp; + + png_debug(1, "in png_write_iCCP"); + + /* These are all internal problems: the profile should have been checked + * before when it was stored. + */ + if (profile == NULL) + png_error(png_ptr, "No profile for iCCP chunk"); /* internal error */ + + profile_len = png_get_uint_32(profile); + + if (profile_len < 132) + png_error(png_ptr, "ICC profile too short"); + + temp = (png_uint_32) (*(profile+8)); + if (temp > 3 && (profile_len & 0x03)) + png_error(png_ptr, "ICC profile length invalid (not a multiple of 4)"); + + { + png_uint_32 embedded_profile_len = png_get_uint_32(profile); + + if (profile_len != embedded_profile_len) + png_error(png_ptr, "Profile length does not match profile"); + } + + name_len = png_check_keyword(png_ptr, name, new_name); + + if (name_len == 0) + png_error(png_ptr, "iCCP: invalid keyword"); + + new_name[++name_len] = PNG_COMPRESSION_TYPE_BASE; + + /* Make sure we include the NULL after the name and the compression type */ + ++name_len; + + png_text_compress_init(&comp, profile, profile_len); + + /* Allow for keyword terminator and compression byte */ + if (png_text_compress(png_ptr, png_iCCP, &comp, name_len) != Z_OK) + png_error(png_ptr, png_ptr->zstream.msg); + + png_write_chunk_header(png_ptr, png_iCCP, name_len + comp.output_len); + + png_write_chunk_data(png_ptr, new_name, name_len); + + png_write_compressed_data_out(png_ptr, &comp); + + png_write_chunk_end(png_ptr); +} +#endif + +#ifdef PNG_WRITE_sPLT_SUPPORTED +/* Write a sPLT chunk */ +void /* PRIVATE */ +png_write_sPLT(png_structrp png_ptr, png_const_sPLT_tp spalette) +{ + png_uint_32 name_len; + png_byte new_name[80]; + png_byte entrybuf[10]; + png_size_t entry_size = (spalette->depth == 8 ? 6 : 10); + png_size_t palette_size = entry_size * spalette->nentries; + png_sPLT_entryp ep; +#ifndef PNG_POINTER_INDEXING_SUPPORTED + int i; +#endif + + png_debug(1, "in png_write_sPLT"); + + name_len = png_check_keyword(png_ptr, spalette->name, new_name); + + if (name_len == 0) + png_error(png_ptr, "sPLT: invalid keyword"); + + /* Make sure we include the NULL after the name */ + png_write_chunk_header(png_ptr, png_sPLT, + (png_uint_32)(name_len + 2 + palette_size)); + + png_write_chunk_data(png_ptr, (png_bytep)new_name, + (png_size_t)(name_len + 1)); + + png_write_chunk_data(png_ptr, &spalette->depth, (png_size_t)1); + + /* Loop through each palette entry, writing appropriately */ +#ifdef PNG_POINTER_INDEXING_SUPPORTED + for (ep = spalette->entries; epentries + spalette->nentries; ep++) + { + if (spalette->depth == 8) + { + entrybuf[0] = (png_byte)ep->red; + entrybuf[1] = (png_byte)ep->green; + entrybuf[2] = (png_byte)ep->blue; + entrybuf[3] = (png_byte)ep->alpha; + png_save_uint_16(entrybuf + 4, ep->frequency); + } + + else + { + png_save_uint_16(entrybuf + 0, ep->red); + png_save_uint_16(entrybuf + 2, ep->green); + png_save_uint_16(entrybuf + 4, ep->blue); + png_save_uint_16(entrybuf + 6, ep->alpha); + png_save_uint_16(entrybuf + 8, ep->frequency); + } + + png_write_chunk_data(png_ptr, entrybuf, entry_size); + } +#else + ep=spalette->entries; + for (i = 0; i>spalette->nentries; i++) + { + if (spalette->depth == 8) + { + entrybuf[0] = (png_byte)ep[i].red; + entrybuf[1] = (png_byte)ep[i].green; + entrybuf[2] = (png_byte)ep[i].blue; + entrybuf[3] = (png_byte)ep[i].alpha; + png_save_uint_16(entrybuf + 4, ep[i].frequency); + } + + else + { + png_save_uint_16(entrybuf + 0, ep[i].red); + png_save_uint_16(entrybuf + 2, ep[i].green); + png_save_uint_16(entrybuf + 4, ep[i].blue); + png_save_uint_16(entrybuf + 6, ep[i].alpha); + png_save_uint_16(entrybuf + 8, ep[i].frequency); + } + + png_write_chunk_data(png_ptr, entrybuf, entry_size); + } +#endif + + png_write_chunk_end(png_ptr); +} +#endif + +#ifdef PNG_WRITE_sBIT_SUPPORTED +/* Write the sBIT chunk */ +void /* PRIVATE */ +png_write_sBIT(png_structrp png_ptr, png_const_color_8p sbit, int color_type) +{ + png_byte buf[4]; + png_size_t size; + + png_debug(1, "in png_write_sBIT"); + + /* Make sure we don't depend upon the order of PNG_COLOR_8 */ + if (color_type & PNG_COLOR_MASK_COLOR) + { + png_byte maxbits; + + maxbits = (png_byte)(color_type==PNG_COLOR_TYPE_PALETTE ? 8 : + png_ptr->usr_bit_depth); + + if (sbit->red == 0 || sbit->red > maxbits || + sbit->green == 0 || sbit->green > maxbits || + sbit->blue == 0 || sbit->blue > maxbits) + { + png_warning(png_ptr, "Invalid sBIT depth specified"); + return; + } + + buf[0] = sbit->red; + buf[1] = sbit->green; + buf[2] = sbit->blue; + size = 3; + } + + else + { + if (sbit->gray == 0 || sbit->gray > png_ptr->usr_bit_depth) + { + png_warning(png_ptr, "Invalid sBIT depth specified"); + return; + } + + buf[0] = sbit->gray; + size = 1; + } + + if (color_type & PNG_COLOR_MASK_ALPHA) + { + if (sbit->alpha == 0 || sbit->alpha > png_ptr->usr_bit_depth) + { + png_warning(png_ptr, "Invalid sBIT depth specified"); + return; + } + + buf[size++] = sbit->alpha; + } + + png_write_complete_chunk(png_ptr, png_sBIT, buf, size); +} +#endif + +#ifdef PNG_WRITE_cHRM_SUPPORTED +/* Write the cHRM chunk */ +void /* PRIVATE */ +png_write_cHRM_fixed(png_structrp png_ptr, const png_xy *xy) +{ + png_byte buf[32]; + + png_debug(1, "in png_write_cHRM"); + + /* Each value is saved in 1/100,000ths */ + png_save_int_32(buf, xy->whitex); + png_save_int_32(buf + 4, xy->whitey); + + png_save_int_32(buf + 8, xy->redx); + png_save_int_32(buf + 12, xy->redy); + + png_save_int_32(buf + 16, xy->greenx); + png_save_int_32(buf + 20, xy->greeny); + + png_save_int_32(buf + 24, xy->bluex); + png_save_int_32(buf + 28, xy->bluey); + + png_write_complete_chunk(png_ptr, png_cHRM, buf, 32); +} +#endif + +#ifdef PNG_WRITE_tRNS_SUPPORTED +/* Write the tRNS chunk */ +void /* PRIVATE */ +png_write_tRNS(png_structrp png_ptr, png_const_bytep trans_alpha, + png_const_color_16p tran, int num_trans, int color_type) +{ + png_byte buf[6]; + + png_debug(1, "in png_write_tRNS"); + + if (color_type == PNG_COLOR_TYPE_PALETTE) + { + if (num_trans <= 0 || num_trans > (int)png_ptr->num_palette) + { + png_app_warning(png_ptr, + "Invalid number of transparent colors specified"); + return; + } + + /* Write the chunk out as it is */ + png_write_complete_chunk(png_ptr, png_tRNS, trans_alpha, + (png_size_t)num_trans); + } + + else if (color_type == PNG_COLOR_TYPE_GRAY) + { + /* One 16 bit value */ + if (tran->gray >= (1 << png_ptr->bit_depth)) + { + png_app_warning(png_ptr, + "Ignoring attempt to write tRNS chunk out-of-range for bit_depth"); + + return; + } + + png_save_uint_16(buf, tran->gray); + png_write_complete_chunk(png_ptr, png_tRNS, buf, (png_size_t)2); + } + + else if (color_type == PNG_COLOR_TYPE_RGB) + { + /* Three 16 bit values */ + png_save_uint_16(buf, tran->red); + png_save_uint_16(buf + 2, tran->green); + png_save_uint_16(buf + 4, tran->blue); +#ifdef PNG_WRITE_16BIT_SUPPORTED + if (png_ptr->bit_depth == 8 && (buf[0] | buf[2] | buf[4])) +#else + if (buf[0] | buf[2] | buf[4]) +#endif + { + png_app_warning(png_ptr, + "Ignoring attempt to write 16-bit tRNS chunk when bit_depth is 8"); + return; + } + + png_write_complete_chunk(png_ptr, png_tRNS, buf, (png_size_t)6); + } + + else + { + png_app_warning(png_ptr, "Can't write tRNS with an alpha channel"); + } +} +#endif + +#ifdef PNG_WRITE_bKGD_SUPPORTED +/* Write the background chunk */ +void /* PRIVATE */ +png_write_bKGD(png_structrp png_ptr, png_const_color_16p back, int color_type) +{ + png_byte buf[6]; + + png_debug(1, "in png_write_bKGD"); + + if (color_type == PNG_COLOR_TYPE_PALETTE) + { + if ( +#ifdef PNG_MNG_FEATURES_SUPPORTED + (png_ptr->num_palette || + (!(png_ptr->mng_features_permitted & PNG_FLAG_MNG_EMPTY_PLTE))) && +#endif + back->index >= png_ptr->num_palette) + { + png_warning(png_ptr, "Invalid background palette index"); + return; + } + + buf[0] = back->index; + png_write_complete_chunk(png_ptr, png_bKGD, buf, (png_size_t)1); + } + + else if (color_type & PNG_COLOR_MASK_COLOR) + { + png_save_uint_16(buf, back->red); + png_save_uint_16(buf + 2, back->green); + png_save_uint_16(buf + 4, back->blue); +#ifdef PNG_WRITE_16BIT_SUPPORTED + if (png_ptr->bit_depth == 8 && (buf[0] | buf[2] | buf[4])) +#else + if (buf[0] | buf[2] | buf[4]) +#endif + { + png_warning(png_ptr, + "Ignoring attempt to write 16-bit bKGD chunk when bit_depth is 8"); + + return; + } + + png_write_complete_chunk(png_ptr, png_bKGD, buf, (png_size_t)6); + } + + else + { + if (back->gray >= (1 << png_ptr->bit_depth)) + { + png_warning(png_ptr, + "Ignoring attempt to write bKGD chunk out-of-range for bit_depth"); + + return; + } + + png_save_uint_16(buf, back->gray); + png_write_complete_chunk(png_ptr, png_bKGD, buf, (png_size_t)2); + } +} +#endif + +#ifdef PNG_WRITE_hIST_SUPPORTED +/* Write the histogram */ +void /* PRIVATE */ +png_write_hIST(png_structrp png_ptr, png_const_uint_16p hist, int num_hist) +{ + int i; + png_byte buf[3]; + + png_debug(1, "in png_write_hIST"); + + if (num_hist > (int)png_ptr->num_palette) + { + png_debug2(3, "num_hist = %d, num_palette = %d", num_hist, + png_ptr->num_palette); + + png_warning(png_ptr, "Invalid number of histogram entries specified"); + return; + } + + png_write_chunk_header(png_ptr, png_hIST, (png_uint_32)(num_hist * 2)); + + for (i = 0; i < num_hist; i++) + { + png_save_uint_16(buf, hist[i]); + png_write_chunk_data(png_ptr, buf, (png_size_t)2); + } + + png_write_chunk_end(png_ptr); +} +#endif + +#ifdef PNG_WRITE_tEXt_SUPPORTED +/* Write a tEXt chunk */ +void /* PRIVATE */ +png_write_tEXt(png_structrp png_ptr, png_const_charp key, png_const_charp text, + png_size_t text_len) +{ + png_uint_32 key_len; + png_byte new_key[80]; + + png_debug(1, "in png_write_tEXt"); + + key_len = png_check_keyword(png_ptr, key, new_key); + + if (key_len == 0) + png_error(png_ptr, "tEXt: invalid keyword"); + + if (text == NULL || *text == '\0') + text_len = 0; + + else + text_len = strlen(text); + + if (text_len > PNG_UINT_31_MAX - (key_len+1)) + png_error(png_ptr, "tEXt: text too long"); + + /* Make sure we include the 0 after the key */ + png_write_chunk_header(png_ptr, png_tEXt, + (png_uint_32)/*checked above*/(key_len + text_len + 1)); + /* + * We leave it to the application to meet PNG-1.0 requirements on the + * contents of the text. PNG-1.0 through PNG-1.2 discourage the use of + * any non-Latin-1 characters except for NEWLINE. ISO PNG will forbid them. + * The NUL character is forbidden by PNG-1.0 through PNG-1.2 and ISO PNG. + */ + png_write_chunk_data(png_ptr, new_key, key_len + 1); + + if (text_len != 0) + png_write_chunk_data(png_ptr, (png_const_bytep)text, text_len); + + png_write_chunk_end(png_ptr); +} +#endif + +#ifdef PNG_WRITE_zTXt_SUPPORTED +/* Write a compressed text chunk */ +void /* PRIVATE */ +png_write_zTXt(png_structrp png_ptr, png_const_charp key, png_const_charp text, + png_size_t text_len, int compression) +{ + png_uint_32 key_len; + png_byte new_key[81]; + compression_state comp; + + png_debug(1, "in png_write_zTXt"); + PNG_UNUSED(text_len) /* Always use strlen */ + + if (compression == PNG_TEXT_COMPRESSION_NONE) + { + png_write_tEXt(png_ptr, key, text, 0); + return; + } + + if (compression != PNG_TEXT_COMPRESSION_zTXt) + png_error(png_ptr, "zTXt: invalid compression type"); + + key_len = png_check_keyword(png_ptr, key, new_key); + + if (key_len == 0) + png_error(png_ptr, "zTXt: invalid keyword"); + + /* Add the compression method and 1 for the keyword separator. */ + new_key[++key_len] = PNG_COMPRESSION_TYPE_BASE; + ++key_len; + + /* Compute the compressed data; do it now for the length */ + png_text_compress_init(&comp, (png_const_bytep)text, + text == NULL ? 0 : strlen(text)); + + if (png_text_compress(png_ptr, png_zTXt, &comp, key_len) != Z_OK) + png_error(png_ptr, png_ptr->zstream.msg); + + /* Write start of chunk */ + png_write_chunk_header(png_ptr, png_zTXt, key_len + comp.output_len); + + /* Write key */ + png_write_chunk_data(png_ptr, new_key, key_len); + + /* Write the compressed data */ + png_write_compressed_data_out(png_ptr, &comp); + + /* Close the chunk */ + png_write_chunk_end(png_ptr); +} +#endif + +#ifdef PNG_WRITE_iTXt_SUPPORTED +/* Write an iTXt chunk */ +void /* PRIVATE */ +png_write_iTXt(png_structrp png_ptr, int compression, png_const_charp key, + png_const_charp lang, png_const_charp lang_key, png_const_charp text) +{ + png_uint_32 key_len, prefix_len; + png_size_t lang_len, lang_key_len; + png_byte new_key[82]; + compression_state comp; + + png_debug(1, "in png_write_iTXt"); + + key_len = png_check_keyword(png_ptr, key, new_key); + + if (key_len == 0) + png_error(png_ptr, "iTXt: invalid keyword"); + + /* Set the compression flag */ + switch (compression) + { + case PNG_ITXT_COMPRESSION_NONE: + case PNG_TEXT_COMPRESSION_NONE: + compression = new_key[++key_len] = 0; /* no compression */ + break; + + case PNG_TEXT_COMPRESSION_zTXt: + case PNG_ITXT_COMPRESSION_zTXt: + compression = new_key[++key_len] = 1; /* compressed */ + break; + + default: + png_error(png_ptr, "iTXt: invalid compression"); + } + + new_key[++key_len] = PNG_COMPRESSION_TYPE_BASE; + ++key_len; /* for the keywod separator */ + + /* We leave it to the application to meet PNG-1.0 requirements on the + * contents of the text. PNG-1.0 through PNG-1.2 discourage the use of + * any non-Latin-1 characters except for NEWLINE. ISO PNG, however, + * specifies that the text is UTF-8 and this really doesn't require any + * checking. + * + * The NUL character is forbidden by PNG-1.0 through PNG-1.2 and ISO PNG. + * + * TODO: validate the language tag correctly (see the spec.) + */ + if (lang == NULL) lang = ""; /* empty language is valid */ + lang_len = strlen(lang)+1; + if (lang_key == NULL) lang_key = ""; /* may be empty */ + lang_key_len = strlen(lang_key)+1; + if (text == NULL) text = ""; /* may be empty */ + + prefix_len = key_len; + if (lang_len > PNG_UINT_31_MAX-prefix_len) + prefix_len = PNG_UINT_31_MAX; + else + prefix_len = (png_uint_32)(prefix_len + lang_len); + + if (lang_key_len > PNG_UINT_31_MAX-prefix_len) + prefix_len = PNG_UINT_31_MAX; + else + prefix_len = (png_uint_32)(prefix_len + lang_key_len); + + png_text_compress_init(&comp, (png_const_bytep)text, strlen(text)); + + if (compression != 0) + { + if (png_text_compress(png_ptr, png_iTXt, &comp, prefix_len) != Z_OK) + png_error(png_ptr, png_ptr->zstream.msg); + } + + else + { + if (comp.input_len > PNG_UINT_31_MAX-prefix_len) + png_error(png_ptr, "iTXt: uncompressed text too long"); + + /* So the string will fit in a chunk: */ + comp.output_len = (png_uint_32)/*SAFE*/comp.input_len; + } + + png_write_chunk_header(png_ptr, png_iTXt, comp.output_len + prefix_len); + + png_write_chunk_data(png_ptr, new_key, key_len); + + png_write_chunk_data(png_ptr, (png_const_bytep)lang, lang_len); + + png_write_chunk_data(png_ptr, (png_const_bytep)lang_key, lang_key_len); + + if (compression != 0) + png_write_compressed_data_out(png_ptr, &comp); + + else + png_write_chunk_data(png_ptr, (png_const_bytep)text, comp.input_len); + + png_write_chunk_end(png_ptr); +} +#endif + +#ifdef PNG_WRITE_oFFs_SUPPORTED +/* Write the oFFs chunk */ +void /* PRIVATE */ +png_write_oFFs(png_structrp png_ptr, png_int_32 x_offset, png_int_32 y_offset, + int unit_type) +{ + png_byte buf[9]; + + png_debug(1, "in png_write_oFFs"); + + if (unit_type >= PNG_OFFSET_LAST) + png_warning(png_ptr, "Unrecognized unit type for oFFs chunk"); + + png_save_int_32(buf, x_offset); + png_save_int_32(buf + 4, y_offset); + buf[8] = (png_byte)unit_type; + + png_write_complete_chunk(png_ptr, png_oFFs, buf, (png_size_t)9); +} +#endif +#ifdef PNG_WRITE_pCAL_SUPPORTED +/* Write the pCAL chunk (described in the PNG extensions document) */ +void /* PRIVATE */ +png_write_pCAL(png_structrp png_ptr, png_charp purpose, png_int_32 X0, + png_int_32 X1, int type, int nparams, png_const_charp units, + png_charpp params) +{ + png_uint_32 purpose_len; + png_size_t units_len, total_len; + png_size_tp params_len; + png_byte buf[10]; + png_byte new_purpose[80]; + int i; + + png_debug1(1, "in png_write_pCAL (%d parameters)", nparams); + + if (type >= PNG_EQUATION_LAST) + png_error(png_ptr, "Unrecognized equation type for pCAL chunk"); + + purpose_len = png_check_keyword(png_ptr, purpose, new_purpose); + + if (purpose_len == 0) + png_error(png_ptr, "pCAL: invalid keyword"); + + ++purpose_len; /* terminator */ + + png_debug1(3, "pCAL purpose length = %d", (int)purpose_len); + units_len = strlen(units) + (nparams == 0 ? 0 : 1); + png_debug1(3, "pCAL units length = %d", (int)units_len); + total_len = purpose_len + units_len + 10; + + params_len = (png_size_tp)png_malloc(png_ptr, + (png_alloc_size_t)(nparams * (sizeof (png_size_t)))); + + /* Find the length of each parameter, making sure we don't count the + * null terminator for the last parameter. + */ + for (i = 0; i < nparams; i++) + { + params_len[i] = strlen(params[i]) + (i == nparams - 1 ? 0 : 1); + png_debug2(3, "pCAL parameter %d length = %lu", i, + (unsigned long)params_len[i]); + total_len += params_len[i]; + } + + png_debug1(3, "pCAL total length = %d", (int)total_len); + png_write_chunk_header(png_ptr, png_pCAL, (png_uint_32)total_len); + png_write_chunk_data(png_ptr, new_purpose, purpose_len); + png_save_int_32(buf, X0); + png_save_int_32(buf + 4, X1); + buf[8] = (png_byte)type; + buf[9] = (png_byte)nparams; + png_write_chunk_data(png_ptr, buf, (png_size_t)10); + png_write_chunk_data(png_ptr, (png_const_bytep)units, (png_size_t)units_len); + + for (i = 0; i < nparams; i++) + { + png_write_chunk_data(png_ptr, (png_const_bytep)params[i], params_len[i]); + } + + png_free(png_ptr, params_len); + png_write_chunk_end(png_ptr); +} +#endif + +#ifdef PNG_WRITE_sCAL_SUPPORTED +/* Write the sCAL chunk */ +void /* PRIVATE */ +png_write_sCAL_s(png_structrp png_ptr, int unit, png_const_charp width, + png_const_charp height) +{ + png_byte buf[64]; + png_size_t wlen, hlen, total_len; + + png_debug(1, "in png_write_sCAL_s"); + + wlen = strlen(width); + hlen = strlen(height); + total_len = wlen + hlen + 2; + + if (total_len > 64) + { + png_warning(png_ptr, "Can't write sCAL (buffer too small)"); + return; + } + + buf[0] = (png_byte)unit; + memcpy(buf + 1, width, wlen + 1); /* Append the '\0' here */ + memcpy(buf + wlen + 2, height, hlen); /* Do NOT append the '\0' here */ + + png_debug1(3, "sCAL total length = %u", (unsigned int)total_len); + png_write_complete_chunk(png_ptr, png_sCAL, buf, total_len); +} +#endif + +#ifdef PNG_WRITE_pHYs_SUPPORTED +/* Write the pHYs chunk */ +void /* PRIVATE */ +png_write_pHYs(png_structrp png_ptr, png_uint_32 x_pixels_per_unit, + png_uint_32 y_pixels_per_unit, + int unit_type) +{ + png_byte buf[9]; + + png_debug(1, "in png_write_pHYs"); + + if (unit_type >= PNG_RESOLUTION_LAST) + png_warning(png_ptr, "Unrecognized unit type for pHYs chunk"); + + png_save_uint_32(buf, x_pixels_per_unit); + png_save_uint_32(buf + 4, y_pixels_per_unit); + buf[8] = (png_byte)unit_type; + + png_write_complete_chunk(png_ptr, png_pHYs, buf, (png_size_t)9); +} +#endif + +#ifdef PNG_WRITE_tIME_SUPPORTED +/* Write the tIME chunk. Use either png_convert_from_struct_tm() + * or png_convert_from_time_t(), or fill in the structure yourself. + */ +void /* PRIVATE */ +png_write_tIME(png_structrp png_ptr, png_const_timep mod_time) +{ + png_byte buf[7]; + + png_debug(1, "in png_write_tIME"); + + if (mod_time->month > 12 || mod_time->month < 1 || + mod_time->day > 31 || mod_time->day < 1 || + mod_time->hour > 23 || mod_time->second > 60) + { + png_warning(png_ptr, "Invalid time specified for tIME chunk"); + return; + } + + png_save_uint_16(buf, mod_time->year); + buf[2] = mod_time->month; + buf[3] = mod_time->day; + buf[4] = mod_time->hour; + buf[5] = mod_time->minute; + buf[6] = mod_time->second; + + png_write_complete_chunk(png_ptr, png_tIME, buf, (png_size_t)7); +} +#endif + +/* Initializes the row writing capability of libpng */ +void /* PRIVATE */ +png_write_start_row(png_structrp png_ptr) +{ +#ifdef PNG_WRITE_INTERLACING_SUPPORTED + /* Arrays to facilitate easy interlacing - use pass (0 - 6) as index */ + + /* Start of interlace block */ + static PNG_CONST png_byte png_pass_start[7] = {0, 4, 0, 2, 0, 1, 0}; + + /* Offset to next interlace block */ + static PNG_CONST png_byte png_pass_inc[7] = {8, 8, 4, 4, 2, 2, 1}; + + /* Start of interlace block in the y direction */ + static PNG_CONST png_byte png_pass_ystart[7] = {0, 0, 4, 0, 2, 0, 1}; + + /* Offset to next interlace block in the y direction */ + static PNG_CONST png_byte png_pass_yinc[7] = {8, 8, 8, 4, 4, 2, 2}; +#endif + + png_alloc_size_t buf_size; + int usr_pixel_depth; + + png_debug(1, "in png_write_start_row"); + + usr_pixel_depth = png_ptr->usr_channels * png_ptr->usr_bit_depth; + buf_size = PNG_ROWBYTES(usr_pixel_depth, png_ptr->width) + 1; + + /* 1.5.6: added to allow checking in the row write code. */ + png_ptr->transformed_pixel_depth = png_ptr->pixel_depth; + png_ptr->maximum_pixel_depth = (png_byte)usr_pixel_depth; + + /* Set up row buffer */ + png_ptr->row_buf = (png_bytep)png_malloc(png_ptr, buf_size); + + png_ptr->row_buf[0] = PNG_FILTER_VALUE_NONE; + +#ifdef PNG_WRITE_FILTER_SUPPORTED + /* Set up filtering buffer, if using this filter */ + if (png_ptr->do_filter & PNG_FILTER_SUB) + { + png_ptr->sub_row = (png_bytep)png_malloc(png_ptr, png_ptr->rowbytes + 1); + + png_ptr->sub_row[0] = PNG_FILTER_VALUE_SUB; + } + + /* We only need to keep the previous row if we are using one of these. */ + if (png_ptr->do_filter & (PNG_FILTER_AVG | PNG_FILTER_UP | PNG_FILTER_PAETH)) + { + /* Set up previous row buffer */ + png_ptr->prev_row = (png_bytep)png_calloc(png_ptr, buf_size); + + if (png_ptr->do_filter & PNG_FILTER_UP) + { + png_ptr->up_row = (png_bytep)png_malloc(png_ptr, + png_ptr->rowbytes + 1); + + png_ptr->up_row[0] = PNG_FILTER_VALUE_UP; + } + + if (png_ptr->do_filter & PNG_FILTER_AVG) + { + png_ptr->avg_row = (png_bytep)png_malloc(png_ptr, + png_ptr->rowbytes + 1); + + png_ptr->avg_row[0] = PNG_FILTER_VALUE_AVG; + } + + if (png_ptr->do_filter & PNG_FILTER_PAETH) + { + png_ptr->paeth_row = (png_bytep)png_malloc(png_ptr, + png_ptr->rowbytes + 1); + + png_ptr->paeth_row[0] = PNG_FILTER_VALUE_PAETH; + } + } +#endif /* PNG_WRITE_FILTER_SUPPORTED */ + +#ifdef PNG_WRITE_INTERLACING_SUPPORTED + /* If interlaced, we need to set up width and height of pass */ + if (png_ptr->interlaced) + { + if (!(png_ptr->transformations & PNG_INTERLACE)) + { + png_ptr->num_rows = (png_ptr->height + png_pass_yinc[0] - 1 - + png_pass_ystart[0]) / png_pass_yinc[0]; + + png_ptr->usr_width = (png_ptr->width + png_pass_inc[0] - 1 - + png_pass_start[0]) / png_pass_inc[0]; + } + + else + { + png_ptr->num_rows = png_ptr->height; + png_ptr->usr_width = png_ptr->width; + } + } + + else +#endif + { + png_ptr->num_rows = png_ptr->height; + png_ptr->usr_width = png_ptr->width; + } +} + +/* Internal use only. Called when finished processing a row of data. */ +void /* PRIVATE */ +png_write_finish_row(png_structrp png_ptr) +{ +#ifdef PNG_WRITE_INTERLACING_SUPPORTED + /* Arrays to facilitate easy interlacing - use pass (0 - 6) as index */ + + /* Start of interlace block */ + static PNG_CONST png_byte png_pass_start[7] = {0, 4, 0, 2, 0, 1, 0}; + + /* Offset to next interlace block */ + static PNG_CONST png_byte png_pass_inc[7] = {8, 8, 4, 4, 2, 2, 1}; + + /* Start of interlace block in the y direction */ + static PNG_CONST png_byte png_pass_ystart[7] = {0, 0, 4, 0, 2, 0, 1}; + + /* Offset to next interlace block in the y direction */ + static PNG_CONST png_byte png_pass_yinc[7] = {8, 8, 8, 4, 4, 2, 2}; +#endif + + png_debug(1, "in png_write_finish_row"); + + /* Next row */ + png_ptr->row_number++; + + /* See if we are done */ + if (png_ptr->row_number < png_ptr->num_rows) + return; + +#ifdef PNG_WRITE_INTERLACING_SUPPORTED + /* If interlaced, go to next pass */ + if (png_ptr->interlaced) + { + png_ptr->row_number = 0; + if (png_ptr->transformations & PNG_INTERLACE) + { + png_ptr->pass++; + } + + else + { + /* Loop until we find a non-zero width or height pass */ + do + { + png_ptr->pass++; + + if (png_ptr->pass >= 7) + break; + + png_ptr->usr_width = (png_ptr->width + + png_pass_inc[png_ptr->pass] - 1 - + png_pass_start[png_ptr->pass]) / + png_pass_inc[png_ptr->pass]; + + png_ptr->num_rows = (png_ptr->height + + png_pass_yinc[png_ptr->pass] - 1 - + png_pass_ystart[png_ptr->pass]) / + png_pass_yinc[png_ptr->pass]; + + if (png_ptr->transformations & PNG_INTERLACE) + break; + + } while (png_ptr->usr_width == 0 || png_ptr->num_rows == 0); + + } + + /* Reset the row above the image for the next pass */ + if (png_ptr->pass < 7) + { + if (png_ptr->prev_row != NULL) + memset(png_ptr->prev_row, 0, + (png_size_t)(PNG_ROWBYTES(png_ptr->usr_channels* + png_ptr->usr_bit_depth, png_ptr->width)) + 1); + + return; + } + } +#endif + + /* If we get here, we've just written the last row, so we need + to flush the compressor */ + png_compress_IDAT(png_ptr, NULL, 0, Z_FINISH); +} + +#ifdef PNG_WRITE_INTERLACING_SUPPORTED +/* Pick out the correct pixels for the interlace pass. + * The basic idea here is to go through the row with a source + * pointer and a destination pointer (sp and dp), and copy the + * correct pixels for the pass. As the row gets compacted, + * sp will always be >= dp, so we should never overwrite anything. + * See the default: case for the easiest code to understand. + */ +void /* PRIVATE */ +png_do_write_interlace(png_row_infop row_info, png_bytep row, int pass) +{ + /* Arrays to facilitate easy interlacing - use pass (0 - 6) as index */ + + /* Start of interlace block */ + static PNG_CONST png_byte png_pass_start[7] = {0, 4, 0, 2, 0, 1, 0}; + + /* Offset to next interlace block */ + static PNG_CONST png_byte png_pass_inc[7] = {8, 8, 4, 4, 2, 2, 1}; + + png_debug(1, "in png_do_write_interlace"); + + /* We don't have to do anything on the last pass (6) */ + if (pass < 6) + { + /* Each pixel depth is handled separately */ + switch (row_info->pixel_depth) + { + case 1: + { + png_bytep sp; + png_bytep dp; + int shift; + int d; + int value; + png_uint_32 i; + png_uint_32 row_width = row_info->width; + + dp = row; + d = 0; + shift = 7; + + for (i = png_pass_start[pass]; i < row_width; + i += png_pass_inc[pass]) + { + sp = row + (png_size_t)(i >> 3); + value = (int)(*sp >> (7 - (int)(i & 0x07))) & 0x01; + d |= (value << shift); + + if (shift == 0) + { + shift = 7; + *dp++ = (png_byte)d; + d = 0; + } + + else + shift--; + + } + if (shift != 7) + *dp = (png_byte)d; + + break; + } + + case 2: + { + png_bytep sp; + png_bytep dp; + int shift; + int d; + int value; + png_uint_32 i; + png_uint_32 row_width = row_info->width; + + dp = row; + shift = 6; + d = 0; + + for (i = png_pass_start[pass]; i < row_width; + i += png_pass_inc[pass]) + { + sp = row + (png_size_t)(i >> 2); + value = (*sp >> ((3 - (int)(i & 0x03)) << 1)) & 0x03; + d |= (value << shift); + + if (shift == 0) + { + shift = 6; + *dp++ = (png_byte)d; + d = 0; + } + + else + shift -= 2; + } + if (shift != 6) + *dp = (png_byte)d; + + break; + } + + case 4: + { + png_bytep sp; + png_bytep dp; + int shift; + int d; + int value; + png_uint_32 i; + png_uint_32 row_width = row_info->width; + + dp = row; + shift = 4; + d = 0; + for (i = png_pass_start[pass]; i < row_width; + i += png_pass_inc[pass]) + { + sp = row + (png_size_t)(i >> 1); + value = (*sp >> ((1 - (int)(i & 0x01)) << 2)) & 0x0f; + d |= (value << shift); + + if (shift == 0) + { + shift = 4; + *dp++ = (png_byte)d; + d = 0; + } + + else + shift -= 4; + } + if (shift != 4) + *dp = (png_byte)d; + + break; + } + + default: + { + png_bytep sp; + png_bytep dp; + png_uint_32 i; + png_uint_32 row_width = row_info->width; + png_size_t pixel_bytes; + + /* Start at the beginning */ + dp = row; + + /* Find out how many bytes each pixel takes up */ + pixel_bytes = (row_info->pixel_depth >> 3); + + /* Loop through the row, only looking at the pixels that matter */ + for (i = png_pass_start[pass]; i < row_width; + i += png_pass_inc[pass]) + { + /* Find out where the original pixel is */ + sp = row + (png_size_t)i * pixel_bytes; + + /* Move the pixel */ + if (dp != sp) + memcpy(dp, sp, pixel_bytes); + + /* Next pixel */ + dp += pixel_bytes; + } + break; + } + } + /* Set new row width */ + row_info->width = (row_info->width + + png_pass_inc[pass] - 1 - + png_pass_start[pass]) / + png_pass_inc[pass]; + + row_info->rowbytes = PNG_ROWBYTES(row_info->pixel_depth, + row_info->width); + } +} +#endif + +/* This filters the row, chooses which filter to use, if it has not already + * been specified by the application, and then writes the row out with the + * chosen filter. + */ +static void +png_write_filtered_row(png_structrp png_ptr, png_bytep filtered_row, + png_size_t row_bytes); + +#define PNG_MAXSUM (((png_uint_32)(-1)) >> 1) +#define PNG_HISHIFT 10 +#define PNG_LOMASK ((png_uint_32)0xffffL) +#define PNG_HIMASK ((png_uint_32)(~PNG_LOMASK >> PNG_HISHIFT)) +void /* PRIVATE */ +png_write_find_filter(png_structrp png_ptr, png_row_infop row_info) +{ + png_bytep best_row; +#ifdef PNG_WRITE_FILTER_SUPPORTED + png_bytep prev_row, row_buf; + png_uint_32 mins, bpp; + png_byte filter_to_do = png_ptr->do_filter; + png_size_t row_bytes = row_info->rowbytes; +#ifdef PNG_WRITE_WEIGHTED_FILTER_SUPPORTED + int num_p_filters = png_ptr->num_prev_filters; +#endif + + png_debug(1, "in png_write_find_filter"); + +#ifndef PNG_WRITE_WEIGHTED_FILTER_SUPPORTED + if (png_ptr->row_number == 0 && filter_to_do == PNG_ALL_FILTERS) + { + /* These will never be selected so we need not test them. */ + filter_to_do &= ~(PNG_FILTER_UP | PNG_FILTER_PAETH); + } +#endif + + /* Find out how many bytes offset each pixel is */ + bpp = (row_info->pixel_depth + 7) >> 3; + + prev_row = png_ptr->prev_row; +#endif + best_row = png_ptr->row_buf; +#ifdef PNG_WRITE_FILTER_SUPPORTED + row_buf = best_row; + mins = PNG_MAXSUM; + + /* The prediction method we use is to find which method provides the + * smallest value when summing the absolute values of the distances + * from zero, using anything >= 128 as negative numbers. This is known + * as the "minimum sum of absolute differences" heuristic. Other + * heuristics are the "weighted minimum sum of absolute differences" + * (experimental and can in theory improve compression), and the "zlib + * predictive" method (not implemented yet), which does test compressions + * of lines using different filter methods, and then chooses the + * (series of) filter(s) that give minimum compressed data size (VERY + * computationally expensive). + * + * GRR 980525: consider also + * + * (1) minimum sum of absolute differences from running average (i.e., + * keep running sum of non-absolute differences & count of bytes) + * [track dispersion, too? restart average if dispersion too large?] + * + * (1b) minimum sum of absolute differences from sliding average, probably + * with window size <= deflate window (usually 32K) + * + * (2) minimum sum of squared differences from zero or running average + * (i.e., ~ root-mean-square approach) + */ + + + /* We don't need to test the 'no filter' case if this is the only filter + * that has been chosen, as it doesn't actually do anything to the data. + */ + if ((filter_to_do & PNG_FILTER_NONE) && filter_to_do != PNG_FILTER_NONE) + { + png_bytep rp; + png_uint_32 sum = 0; + png_size_t i; + int v; + + for (i = 0, rp = row_buf + 1; i < row_bytes; i++, rp++) + { + v = *rp; + sum += (v < 128) ? v : 256 - v; + } + +#ifdef PNG_WRITE_WEIGHTED_FILTER_SUPPORTED + if (png_ptr->heuristic_method == PNG_FILTER_HEURISTIC_WEIGHTED) + { + png_uint_32 sumhi, sumlo; + int j; + sumlo = sum & PNG_LOMASK; + sumhi = (sum >> PNG_HISHIFT) & PNG_HIMASK; /* Gives us some footroom */ + + /* Reduce the sum if we match any of the previous rows */ + for (j = 0; j < num_p_filters; j++) + { + if (png_ptr->prev_filters[j] == PNG_FILTER_VALUE_NONE) + { + sumlo = (sumlo * png_ptr->filter_weights[j]) >> + PNG_WEIGHT_SHIFT; + + sumhi = (sumhi * png_ptr->filter_weights[j]) >> + PNG_WEIGHT_SHIFT; + } + } + + /* Factor in the cost of this filter (this is here for completeness, + * but it makes no sense to have a "cost" for the NONE filter, as + * it has the minimum possible computational cost - none). + */ + sumlo = (sumlo * png_ptr->filter_costs[PNG_FILTER_VALUE_NONE]) >> + PNG_COST_SHIFT; + + sumhi = (sumhi * png_ptr->filter_costs[PNG_FILTER_VALUE_NONE]) >> + PNG_COST_SHIFT; + + if (sumhi > PNG_HIMASK) + sum = PNG_MAXSUM; + + else + sum = (sumhi << PNG_HISHIFT) + sumlo; + } +#endif + mins = sum; + } + + /* Sub filter */ + if (filter_to_do == PNG_FILTER_SUB) + /* It's the only filter so no testing is needed */ + { + png_bytep rp, lp, dp; + png_size_t i; + + for (i = 0, rp = row_buf + 1, dp = png_ptr->sub_row + 1; i < bpp; + i++, rp++, dp++) + { + *dp = *rp; + } + + for (lp = row_buf + 1; i < row_bytes; + i++, rp++, lp++, dp++) + { + *dp = (png_byte)(((int)*rp - (int)*lp) & 0xff); + } + + best_row = png_ptr->sub_row; + } + + else if (filter_to_do & PNG_FILTER_SUB) + { + png_bytep rp, dp, lp; + png_uint_32 sum = 0, lmins = mins; + png_size_t i; + int v; + +#ifdef PNG_WRITE_WEIGHTED_FILTER_SUPPORTED + /* We temporarily increase the "minimum sum" by the factor we + * would reduce the sum of this filter, so that we can do the + * early exit comparison without scaling the sum each time. + */ + if (png_ptr->heuristic_method == PNG_FILTER_HEURISTIC_WEIGHTED) + { + int j; + png_uint_32 lmhi, lmlo; + lmlo = lmins & PNG_LOMASK; + lmhi = (lmins >> PNG_HISHIFT) & PNG_HIMASK; + + for (j = 0; j < num_p_filters; j++) + { + if (png_ptr->prev_filters[j] == PNG_FILTER_VALUE_SUB) + { + lmlo = (lmlo * png_ptr->inv_filter_weights[j]) >> + PNG_WEIGHT_SHIFT; + + lmhi = (lmhi * png_ptr->inv_filter_weights[j]) >> + PNG_WEIGHT_SHIFT; + } + } + + lmlo = (lmlo * png_ptr->inv_filter_costs[PNG_FILTER_VALUE_SUB]) >> + PNG_COST_SHIFT; + + lmhi = (lmhi * png_ptr->inv_filter_costs[PNG_FILTER_VALUE_SUB]) >> + PNG_COST_SHIFT; + + if (lmhi > PNG_HIMASK) + lmins = PNG_MAXSUM; + + else + lmins = (lmhi << PNG_HISHIFT) + lmlo; + } +#endif + + for (i = 0, rp = row_buf + 1, dp = png_ptr->sub_row + 1; i < bpp; + i++, rp++, dp++) + { + v = *dp = *rp; + + sum += (v < 128) ? v : 256 - v; + } + + for (lp = row_buf + 1; i < row_bytes; + i++, rp++, lp++, dp++) + { + v = *dp = (png_byte)(((int)*rp - (int)*lp) & 0xff); + + sum += (v < 128) ? v : 256 - v; + + if (sum > lmins) /* We are already worse, don't continue. */ + break; + } + +#ifdef PNG_WRITE_WEIGHTED_FILTER_SUPPORTED + if (png_ptr->heuristic_method == PNG_FILTER_HEURISTIC_WEIGHTED) + { + int j; + png_uint_32 sumhi, sumlo; + sumlo = sum & PNG_LOMASK; + sumhi = (sum >> PNG_HISHIFT) & PNG_HIMASK; + + for (j = 0; j < num_p_filters; j++) + { + if (png_ptr->prev_filters[j] == PNG_FILTER_VALUE_SUB) + { + sumlo = (sumlo * png_ptr->inv_filter_weights[j]) >> + PNG_WEIGHT_SHIFT; + + sumhi = (sumhi * png_ptr->inv_filter_weights[j]) >> + PNG_WEIGHT_SHIFT; + } + } + + sumlo = (sumlo * png_ptr->inv_filter_costs[PNG_FILTER_VALUE_SUB]) >> + PNG_COST_SHIFT; + + sumhi = (sumhi * png_ptr->inv_filter_costs[PNG_FILTER_VALUE_SUB]) >> + PNG_COST_SHIFT; + + if (sumhi > PNG_HIMASK) + sum = PNG_MAXSUM; + + else + sum = (sumhi << PNG_HISHIFT) + sumlo; + } +#endif + + if (sum < mins) + { + mins = sum; + best_row = png_ptr->sub_row; + } + } + + /* Up filter */ + if (filter_to_do == PNG_FILTER_UP) + { + png_bytep rp, dp, pp; + png_size_t i; + + for (i = 0, rp = row_buf + 1, dp = png_ptr->up_row + 1, + pp = prev_row + 1; i < row_bytes; + i++, rp++, pp++, dp++) + { + *dp = (png_byte)(((int)*rp - (int)*pp) & 0xff); + } + + best_row = png_ptr->up_row; + } + + else if (filter_to_do & PNG_FILTER_UP) + { + png_bytep rp, dp, pp; + png_uint_32 sum = 0, lmins = mins; + png_size_t i; + int v; + + +#ifdef PNG_WRITE_WEIGHTED_FILTER_SUPPORTED + if (png_ptr->heuristic_method == PNG_FILTER_HEURISTIC_WEIGHTED) + { + int j; + png_uint_32 lmhi, lmlo; + lmlo = lmins & PNG_LOMASK; + lmhi = (lmins >> PNG_HISHIFT) & PNG_HIMASK; + + for (j = 0; j < num_p_filters; j++) + { + if (png_ptr->prev_filters[j] == PNG_FILTER_VALUE_UP) + { + lmlo = (lmlo * png_ptr->inv_filter_weights[j]) >> + PNG_WEIGHT_SHIFT; + + lmhi = (lmhi * png_ptr->inv_filter_weights[j]) >> + PNG_WEIGHT_SHIFT; + } + } + + lmlo = (lmlo * png_ptr->inv_filter_costs[PNG_FILTER_VALUE_UP]) >> + PNG_COST_SHIFT; + + lmhi = (lmhi * png_ptr->inv_filter_costs[PNG_FILTER_VALUE_UP]) >> + PNG_COST_SHIFT; + + if (lmhi > PNG_HIMASK) + lmins = PNG_MAXSUM; + + else + lmins = (lmhi << PNG_HISHIFT) + lmlo; + } +#endif + + for (i = 0, rp = row_buf + 1, dp = png_ptr->up_row + 1, + pp = prev_row + 1; i < row_bytes; i++) + { + v = *dp++ = (png_byte)(((int)*rp++ - (int)*pp++) & 0xff); + + sum += (v < 128) ? v : 256 - v; + + if (sum > lmins) /* We are already worse, don't continue. */ + break; + } + +#ifdef PNG_WRITE_WEIGHTED_FILTER_SUPPORTED + if (png_ptr->heuristic_method == PNG_FILTER_HEURISTIC_WEIGHTED) + { + int j; + png_uint_32 sumhi, sumlo; + sumlo = sum & PNG_LOMASK; + sumhi = (sum >> PNG_HISHIFT) & PNG_HIMASK; + + for (j = 0; j < num_p_filters; j++) + { + if (png_ptr->prev_filters[j] == PNG_FILTER_VALUE_UP) + { + sumlo = (sumlo * png_ptr->filter_weights[j]) >> + PNG_WEIGHT_SHIFT; + + sumhi = (sumhi * png_ptr->filter_weights[j]) >> + PNG_WEIGHT_SHIFT; + } + } + + sumlo = (sumlo * png_ptr->filter_costs[PNG_FILTER_VALUE_UP]) >> + PNG_COST_SHIFT; + + sumhi = (sumhi * png_ptr->filter_costs[PNG_FILTER_VALUE_UP]) >> + PNG_COST_SHIFT; + + if (sumhi > PNG_HIMASK) + sum = PNG_MAXSUM; + + else + sum = (sumhi << PNG_HISHIFT) + sumlo; + } +#endif + + if (sum < mins) + { + mins = sum; + best_row = png_ptr->up_row; + } + } + + /* Avg filter */ + if (filter_to_do == PNG_FILTER_AVG) + { + png_bytep rp, dp, pp, lp; + png_uint_32 i; + + for (i = 0, rp = row_buf + 1, dp = png_ptr->avg_row + 1, + pp = prev_row + 1; i < bpp; i++) + { + *dp++ = (png_byte)(((int)*rp++ - ((int)*pp++ / 2)) & 0xff); + } + + for (lp = row_buf + 1; i < row_bytes; i++) + { + *dp++ = (png_byte)(((int)*rp++ - (((int)*pp++ + (int)*lp++) / 2)) + & 0xff); + } + best_row = png_ptr->avg_row; + } + + else if (filter_to_do & PNG_FILTER_AVG) + { + png_bytep rp, dp, pp, lp; + png_uint_32 sum = 0, lmins = mins; + png_size_t i; + int v; + +#ifdef PNG_WRITE_WEIGHTED_FILTER_SUPPORTED + if (png_ptr->heuristic_method == PNG_FILTER_HEURISTIC_WEIGHTED) + { + int j; + png_uint_32 lmhi, lmlo; + lmlo = lmins & PNG_LOMASK; + lmhi = (lmins >> PNG_HISHIFT) & PNG_HIMASK; + + for (j = 0; j < num_p_filters; j++) + { + if (png_ptr->prev_filters[j] == PNG_FILTER_VALUE_AVG) + { + lmlo = (lmlo * png_ptr->inv_filter_weights[j]) >> + PNG_WEIGHT_SHIFT; + + lmhi = (lmhi * png_ptr->inv_filter_weights[j]) >> + PNG_WEIGHT_SHIFT; + } + } + + lmlo = (lmlo * png_ptr->inv_filter_costs[PNG_FILTER_VALUE_AVG]) >> + PNG_COST_SHIFT; + + lmhi = (lmhi * png_ptr->inv_filter_costs[PNG_FILTER_VALUE_AVG]) >> + PNG_COST_SHIFT; + + if (lmhi > PNG_HIMASK) + lmins = PNG_MAXSUM; + + else + lmins = (lmhi << PNG_HISHIFT) + lmlo; + } +#endif + + for (i = 0, rp = row_buf + 1, dp = png_ptr->avg_row + 1, + pp = prev_row + 1; i < bpp; i++) + { + v = *dp++ = (png_byte)(((int)*rp++ - ((int)*pp++ / 2)) & 0xff); + + sum += (v < 128) ? v : 256 - v; + } + + for (lp = row_buf + 1; i < row_bytes; i++) + { + v = *dp++ = + (png_byte)(((int)*rp++ - (((int)*pp++ + (int)*lp++) / 2)) & 0xff); + + sum += (v < 128) ? v : 256 - v; + + if (sum > lmins) /* We are already worse, don't continue. */ + break; + } + +#ifdef PNG_WRITE_WEIGHTED_FILTER_SUPPORTED + if (png_ptr->heuristic_method == PNG_FILTER_HEURISTIC_WEIGHTED) + { + int j; + png_uint_32 sumhi, sumlo; + sumlo = sum & PNG_LOMASK; + sumhi = (sum >> PNG_HISHIFT) & PNG_HIMASK; + + for (j = 0; j < num_p_filters; j++) + { + if (png_ptr->prev_filters[j] == PNG_FILTER_VALUE_NONE) + { + sumlo = (sumlo * png_ptr->filter_weights[j]) >> + PNG_WEIGHT_SHIFT; + + sumhi = (sumhi * png_ptr->filter_weights[j]) >> + PNG_WEIGHT_SHIFT; + } + } + + sumlo = (sumlo * png_ptr->filter_costs[PNG_FILTER_VALUE_AVG]) >> + PNG_COST_SHIFT; + + sumhi = (sumhi * png_ptr->filter_costs[PNG_FILTER_VALUE_AVG]) >> + PNG_COST_SHIFT; + + if (sumhi > PNG_HIMASK) + sum = PNG_MAXSUM; + + else + sum = (sumhi << PNG_HISHIFT) + sumlo; + } +#endif + + if (sum < mins) + { + mins = sum; + best_row = png_ptr->avg_row; + } + } + + /* Paeth filter */ + if (filter_to_do == PNG_FILTER_PAETH) + { + png_bytep rp, dp, pp, cp, lp; + png_size_t i; + + for (i = 0, rp = row_buf + 1, dp = png_ptr->paeth_row + 1, + pp = prev_row + 1; i < bpp; i++) + { + *dp++ = (png_byte)(((int)*rp++ - (int)*pp++) & 0xff); + } + + for (lp = row_buf + 1, cp = prev_row + 1; i < row_bytes; i++) + { + int a, b, c, pa, pb, pc, p; + + b = *pp++; + c = *cp++; + a = *lp++; + + p = b - c; + pc = a - c; + +#ifdef PNG_USE_ABS + pa = abs(p); + pb = abs(pc); + pc = abs(p + pc); +#else + pa = p < 0 ? -p : p; + pb = pc < 0 ? -pc : pc; + pc = (p + pc) < 0 ? -(p + pc) : p + pc; +#endif + + p = (pa <= pb && pa <=pc) ? a : (pb <= pc) ? b : c; + + *dp++ = (png_byte)(((int)*rp++ - p) & 0xff); + } + best_row = png_ptr->paeth_row; + } + + else if (filter_to_do & PNG_FILTER_PAETH) + { + png_bytep rp, dp, pp, cp, lp; + png_uint_32 sum = 0, lmins = mins; + png_size_t i; + int v; + +#ifdef PNG_WRITE_WEIGHTED_FILTER_SUPPORTED + if (png_ptr->heuristic_method == PNG_FILTER_HEURISTIC_WEIGHTED) + { + int j; + png_uint_32 lmhi, lmlo; + lmlo = lmins & PNG_LOMASK; + lmhi = (lmins >> PNG_HISHIFT) & PNG_HIMASK; + + for (j = 0; j < num_p_filters; j++) + { + if (png_ptr->prev_filters[j] == PNG_FILTER_VALUE_PAETH) + { + lmlo = (lmlo * png_ptr->inv_filter_weights[j]) >> + PNG_WEIGHT_SHIFT; + + lmhi = (lmhi * png_ptr->inv_filter_weights[j]) >> + PNG_WEIGHT_SHIFT; + } + } + + lmlo = (lmlo * png_ptr->inv_filter_costs[PNG_FILTER_VALUE_PAETH]) >> + PNG_COST_SHIFT; + + lmhi = (lmhi * png_ptr->inv_filter_costs[PNG_FILTER_VALUE_PAETH]) >> + PNG_COST_SHIFT; + + if (lmhi > PNG_HIMASK) + lmins = PNG_MAXSUM; + + else + lmins = (lmhi << PNG_HISHIFT) + lmlo; + } +#endif + + for (i = 0, rp = row_buf + 1, dp = png_ptr->paeth_row + 1, + pp = prev_row + 1; i < bpp; i++) + { + v = *dp++ = (png_byte)(((int)*rp++ - (int)*pp++) & 0xff); + + sum += (v < 128) ? v : 256 - v; + } + + for (lp = row_buf + 1, cp = prev_row + 1; i < row_bytes; i++) + { + int a, b, c, pa, pb, pc, p; + + b = *pp++; + c = *cp++; + a = *lp++; + +#ifndef PNG_SLOW_PAETH + p = b - c; + pc = a - c; +#ifdef PNG_USE_ABS + pa = abs(p); + pb = abs(pc); + pc = abs(p + pc); +#else + pa = p < 0 ? -p : p; + pb = pc < 0 ? -pc : pc; + pc = (p + pc) < 0 ? -(p + pc) : p + pc; +#endif + p = (pa <= pb && pa <=pc) ? a : (pb <= pc) ? b : c; +#else /* PNG_SLOW_PAETH */ + p = a + b - c; + pa = abs(p - a); + pb = abs(p - b); + pc = abs(p - c); + + if (pa <= pb && pa <= pc) + p = a; + + else if (pb <= pc) + p = b; + + else + p = c; +#endif /* PNG_SLOW_PAETH */ + + v = *dp++ = (png_byte)(((int)*rp++ - p) & 0xff); + + sum += (v < 128) ? v : 256 - v; + + if (sum > lmins) /* We are already worse, don't continue. */ + break; + } + +#ifdef PNG_WRITE_WEIGHTED_FILTER_SUPPORTED + if (png_ptr->heuristic_method == PNG_FILTER_HEURISTIC_WEIGHTED) + { + int j; + png_uint_32 sumhi, sumlo; + sumlo = sum & PNG_LOMASK; + sumhi = (sum >> PNG_HISHIFT) & PNG_HIMASK; + + for (j = 0; j < num_p_filters; j++) + { + if (png_ptr->prev_filters[j] == PNG_FILTER_VALUE_PAETH) + { + sumlo = (sumlo * png_ptr->filter_weights[j]) >> + PNG_WEIGHT_SHIFT; + + sumhi = (sumhi * png_ptr->filter_weights[j]) >> + PNG_WEIGHT_SHIFT; + } + } + + sumlo = (sumlo * png_ptr->filter_costs[PNG_FILTER_VALUE_PAETH]) >> + PNG_COST_SHIFT; + + sumhi = (sumhi * png_ptr->filter_costs[PNG_FILTER_VALUE_PAETH]) >> + PNG_COST_SHIFT; + + if (sumhi > PNG_HIMASK) + sum = PNG_MAXSUM; + + else + sum = (sumhi << PNG_HISHIFT) + sumlo; + } +#endif + + if (sum < mins) + { + best_row = png_ptr->paeth_row; + } + } +#endif /* PNG_WRITE_FILTER_SUPPORTED */ + + /* Do the actual writing of the filtered row data from the chosen filter. */ + png_write_filtered_row(png_ptr, best_row, row_info->rowbytes+1); + +#ifdef PNG_WRITE_FILTER_SUPPORTED +#ifdef PNG_WRITE_WEIGHTED_FILTER_SUPPORTED + /* Save the type of filter we picked this time for future calculations */ + if (png_ptr->num_prev_filters > 0) + { + int j; + + for (j = 1; j < num_p_filters; j++) + { + png_ptr->prev_filters[j] = png_ptr->prev_filters[j - 1]; + } + + png_ptr->prev_filters[j] = best_row[0]; + } +#endif +#endif /* PNG_WRITE_FILTER_SUPPORTED */ +} + + +/* Do the actual writing of a previously filtered row. */ +static void +png_write_filtered_row(png_structrp png_ptr, png_bytep filtered_row, + png_size_t full_row_length/*includes filter byte*/) +{ + png_debug(1, "in png_write_filtered_row"); + + png_debug1(2, "filter = %d", filtered_row[0]); + + png_compress_IDAT(png_ptr, filtered_row, full_row_length, Z_NO_FLUSH); + + /* Swap the current and previous rows */ + if (png_ptr->prev_row != NULL) + { + png_bytep tptr; + + tptr = png_ptr->prev_row; + png_ptr->prev_row = png_ptr->row_buf; + png_ptr->row_buf = tptr; + } + + /* Finish row - updates counters and flushes zlib if last row */ + png_write_finish_row(png_ptr); + +#ifdef PNG_WRITE_FLUSH_SUPPORTED + png_ptr->flush_rows++; + + if (png_ptr->flush_dist > 0 && + png_ptr->flush_rows >= png_ptr->flush_dist) + { + png_write_flush(png_ptr); + } +#endif +} +#endif /* PNG_WRITE_SUPPORTED */ diff --git a/profile/Jamfile b/profile/Jamfile index 5c286b9..0c857a8 100644 --- a/profile/Jamfile +++ b/profile/Jamfile @@ -6,7 +6,7 @@ PREF_LINKFLAGS += $(LINKDEBUGFLAG) ; #Products Libraries = libprof ; -Executables = cb2ti3 kodak2ti3 txt2ti3 splitti3 mppcheck mppprof +Executables = cb2ti3 kodak2ti3 txt2ti3 ls2ti3 splitti3 mppcheck mppprof profcheck invprofcheck colverify colprof printcal applycal ; Headers = prof.h ; Samples = example.sp example121.sp 3dap5k.sp GTIPlus.sp Office.sp Trulux.sp TruluxPlus.sp @@ -28,7 +28,7 @@ Library libprof : profin.c profout.c ; LINKLIBS = ../rspl/librspl ../icc/libicc ../cgats/libcgats ../numlib/libnum ../plot/libplot - ../plot/libvrml ; + ../plot/libvrml ../numlib/libui ; # Simple profile generator Main simpprof : simpprof.c ; @@ -40,11 +40,14 @@ Main kodak2ti3 : kodak2ti3.c ; Main cb2ti3 : cb2ti3.c ; # the gcc linker is retarded, and can't link to things it's gone past, hence 2 x libxicc... -LINKLIBS = ../xicc/libxicc ../spectro/libinsttypes ../xicc/libxicc ../gamut/libgamut $(LINKLIBS) ; +LINKLIBS = ../xicc/libxicc ../spectro/libinsttypes ../spectro/libdisptechs ../xicc/libxicc ../gamut/libgamut $(LINKLIBS) ; #Gretag/Logo raw CMYK profile data to Argyll CGATS format converter Main txt2ti3 : txt2ti3.c ; +#LightSpace to Argyll CGATS format +Main ls2ti3 : ls2ti3.c : : : ../xml : : ../xml/libmxml ; + #Split a .ti3 into two pieces randomly Main splitti3 : splitti3.c ; @@ -85,7 +88,7 @@ if $(HOME) = "d:\\usr\\graeme" && $(PWD) = "/src/argyll/profile" { } # Development code -if [ GLOB . : retargti3.c ] { +if [ GLOB [ NormPaths . ] : retargti3.c ] { Main retargti3 : retargti3.c ; } diff --git a/profile/afiles b/profile/afiles index 8b3b980..2d91df7 100644 --- a/profile/afiles +++ b/profile/afiles @@ -15,6 +15,7 @@ mppprof.c mppcheck.c simpprof.c kodak2ti3.c +ls2ti3.c cb2ti3.c txt2ti3.c splitti3.c diff --git a/profile/applycal.c b/profile/applycal.c index ff9a76d..17187db 100644 --- a/profile/applycal.c +++ b/profile/applycal.c @@ -33,6 +33,7 @@ #include "numlib.h" #include "rspl.h" #include "xicc.h" +#include "ui.h" #undef DEBUG diff --git a/profile/colprof.c b/profile/colprof.c index b80f13c..1e73cdf 100644 --- a/profile/colprof.c +++ b/profile/colprof.c @@ -55,6 +55,7 @@ #include "cgats.h" #include "xicc.h" #include "prof.h" +#include "ui.h" #define DEFAVGDEV 0.5 /* Default average deviation percentage */ /* This equates to a uniform added error of +/- 1% */ @@ -66,7 +67,7 @@ Flags used: ABCDEFGHIJKLMNOPQRSTUVWXYZ - upper . .. . ... .. .... . + upper .... . ... .. .... . lower .... .. . .. ......... */ @@ -100,7 +101,7 @@ void usage(char *diag, ...) { fprintf(stderr," -np Don't create input (Device) grid position curves\n"); fprintf(stderr," -no Don't create output (PCS) shaper curves\n"); fprintf(stderr," -nc Don't put the input .ti3 data in the profile\n"); - fprintf(stderr," -k zhxr Black value target: z = zero K,\n"); + fprintf(stderr," -k zhxr Black Ink generation target: z = zero K,\n"); fprintf(stderr," h = 0.5 K, x = max K, r = ramp K (def.)\n"); fprintf(stderr," -k p stle stpo enpo enle shape\n"); fprintf(stderr," stle: K level at White 0.0 - 1.0\n"); @@ -122,6 +123,7 @@ void usage(char *diag, ...) { fprintf(stderr," -uc If input profile, clip cLUT values above WP\n"); fprintf(stderr," -U scale If input profile, scale media white point by scale\n"); fprintf(stderr," -R Restrict white <= 1.0, black and primaries to be +ve\n"); +// fprintf(stderr," -B X,Y,Z Display Black Point override hack\n"); fprintf(stderr," -V demphasis Degree of dark region cLUT grid emphasis 1.0-4.0 (default %.2f = none)\n",DEMPH_DEFAULT); fprintf(stderr," -f [illum] Use Fluorescent Whitening Agent compensation [opt. simulated inst. illum.:\n"); fprintf(stderr," M0, M1, M2, A, C, D50 (def.), D50M2, D65, F5, F8, F10 or file.sp]\n"); @@ -185,6 +187,7 @@ int main(int argc, char *argv[]) { int autowpsc = 0; /* Auto scale the WP to prevent clipping above WP patch */ int clipovwp = 0; /* Clip cLUT values above WP */ int clipprims = 0; /* Clip white, black and primaries */ +// double bpo[3] = { -1,-1,-1 }; /* Black point override hack XYZ value */ double demph = 0.0; /* Emphasise dark region grid resolution in cLUT */ double iwpscale = -1.0; /* Input white point scale factor */ int doinextrap = 1; /* Sythesize extra sample points for input device cLUT */ @@ -200,6 +203,7 @@ int main(int argc, char *argv[]) { int spec = 0; /* Use spectral data flag */ icxIllumeType tillum = icxIT_none; /* Target/simulated instrument illuminant */ xspect cust_tillum; /* Custom target/simulated illumination spectrum */ + /* xspect will use illum/cust_illum if tillum == none */ icxIllumeType illum = icxIT_D50; /* Spectral defaults */ xspect cust_illum; /* Custom illumination spectrum */ icxObserverType observ = icxOT_CIE_1931_2; /* The classic observer */ @@ -428,11 +432,6 @@ int main(int argc, char *argv[]) { oquality = 0; } - else if (argv[fa][1] == 'B') { - oquality = -2; - doinb2a = 0; - } - /* Disable input or output luts */ else if (argv[fa][1] == 'n') { fa = nfa; @@ -478,6 +477,18 @@ int main(int argc, char *argv[]) { clipprims = 1; } +#ifdef NEVER /* Prototype - not used */ + /* Black Point override hack */ + else if (argv[fa][1] == 'B') { + if (na == NULL) usage("Expect X,Y,Z value after -B"); + fa = nfa; + if (sscanf(na, " %lf , %lf , %lf ",&bpo[0],&bpo[1],&bpo[2]) != 3) + usage("Couldn't parse hack black point (-B) value '%s'",na); + if (bpo[0] < 0.0 || bpo[1] < 0.0 || bpo[1] < 0.0) + usage("Bad hack black point (-B) value '%s'",na); + } +#endif + /* Degree of dark region emphasis */ else if (argv[fa][1] == 'V') { if (na == NULL) usage(0,"Expected argument to dark emphasis flag -V"); @@ -824,7 +835,7 @@ int main(int argc, char *argv[]) { if (sscanf(na+1,":%lf:%lf:%lf",&x,&y,&z) == 3) { vc->Wxyz[0] = x; vc->Wxyz[1] = y; vc->Wxyz[2] = z; } else if (sscanf(na+1,":%lf:%lf",&x,&y) == 2) { - vc->Wxyz[0] = x; vc->Wxyz[1] = y; + vc->Wxyz[0] = x; vc->Wxyz[1] = y; vc->Wxyz[2] = -1; } else usage("Viewing condition (-%cw) unrecognised white point '%s'",argv[fa][1],na+1); } else if (na[0] == 'a' || na[0] == 'A') { @@ -842,13 +853,13 @@ int main(int argc, char *argv[]) { } else if (na[0] == 'f' || na[0] == 'F') { if (na[1] != ':') usage("Viewing conditions (-%cf) missing ':'",argv[fa][1]); - vc->Yf = atof(na+2); + vc->Yf = atof(na+2)/100.0; } else if (na[0] == 'g' || na[0] == 'G') { double x, y, z; if (sscanf(na+1,":%lf:%lf:%lf",&x,&y,&z) == 3) { vc->Gxyz[0] = x; vc->Gxyz[1] = y; vc->Gxyz[2] = z; } else if (sscanf(na+1,":%lf:%lf",&x,&y) == 2) { - vc->Gxyz[0] = x; vc->Gxyz[1] = y; + vc->Gxyz[0] = x; vc->Gxyz[1] = y; vc->Gxyz[2] = -1; } else if (sscanf(na+1,":%lf",&x) == 1) { vc->Yg = x/100.0; } else @@ -966,6 +977,9 @@ int main(int argc, char *argv[]) { if (strcmp(icg->t[0].kdata[ti],"OUTPUT") == 0) { icxInk ink; /* Ink parameters */ +// if (bpo[1] >= 0.0) +// error("-B option not valid for output profile"); + if ((ti = icg->find_kword(icg, 0, "TOTAL_INK_LIMIT")) >= 0) { int imax; imax = atoi(icg->t[0].kdata[ti]); @@ -1075,7 +1089,9 @@ int main(int argc, char *argv[]) { make_output_icc(ptype, 0, iccver, verb, iquality, oquality, noisluts, noipluts, nooluts, nocied, noptop, nostos, - gamdiag, verify, clipprims, iwpscale, &ink, inname, outname, icg, + gamdiag, verify, clipprims, iwpscale, +// NULL, /* bpo */ + &ink, inname, outname, icg, spec, tillum, &cust_tillum, illum, &cust_illum, observ, fwacomp, smooth, avgdev, 1.0, ipname[0] != '\000' ? ipname : NULL, @@ -1086,6 +1102,9 @@ int main(int argc, char *argv[]) { } else if (strcmp(icg->t[0].kdata[ti],"INPUT") == 0) { +// if (bpo[1] >= 0.0) +// error("-B option not valid for input profile"); + if (ptype == prof_default) ptype = prof_clutLab; /* For best possible quality */ @@ -1113,7 +1132,9 @@ int main(int argc, char *argv[]) { /* If a source gamut is provided for a Display, then a V2.4.0 profile will be created */ make_output_icc(ptype, mtxtoo, iccver, verb, iquality, oquality, noisluts, noipluts, nooluts, nocied, noptop, nostos, - gamdiag, verify, clipprims, iwpscale, NULL, inname, outname, icg, + gamdiag, verify, clipprims, iwpscale, +// bpo[1] >= 0.0 ? bpo : NULL, + NULL, inname, outname, icg, spec, icxIT_none, NULL, illum, &cust_illum, observ, 0, smooth, avgdev, demph, ipname[0] != '\000' ? ipname : NULL, diff --git a/profile/colverify.c b/profile/colverify.c index ba09366..e84fa6a 100644 --- a/profile/colverify.c +++ b/profile/colverify.c @@ -22,7 +22,7 @@ * TTBD: */ -#undef DEBUG +#define DEBUG #define verbo stdout @@ -37,9 +37,20 @@ #include "vrml.h" #include "cgats.h" #include "xicc.h" -#include "ccmx.h" #include "insttypes.h" +#include "disptechs.h" +#include "ccmx.h" #include "sort.h" +#include "plot.h" +#include "ui.h" + +#ifdef DEBUG +#undef DBG +#define DBG(xxx) printf xxx ; +#else +#undef DBG +#define DBG(xxx) +#endif void usage(void) { @@ -50,13 +61,17 @@ usage(void) { fprintf(stderr," -n Normalise each files reading to its white Y\n"); fprintf(stderr," -N Normalise each files reading to its white XYZ\n"); fprintf(stderr," -m Normalise each files reading to its white X+Y+Z\n"); + fprintf(stderr," -M Normalise both files reading to mean white XYZ\n"); fprintf(stderr," -D Use D50 100.0 as L*a*b* white reference\n"); fprintf(stderr," -c Show CIE94 delta E values\n"); fprintf(stderr," -k Show CIEDE2000 delta E values\n"); + fprintf(stderr," -h Plot a histogram of delta E's\n"); fprintf(stderr," -s Sort patch values by error\n"); - fprintf(stderr," -w create VRML vector visualisation (measured.wrl)\n"); - fprintf(stderr," -W create VRML marker visualisation (measured.wrl)\n"); - fprintf(stderr," -x Use VRML axes\n"); + fprintf(stderr," -w create PCS %s vector visualisation (measured%s)\n",vrml_format(), vrml_ext()); + fprintf(stderr," -W create PCS %s marker visualisation (measured%s)\n",vrml_format(),vrml_ext()); + fprintf(stderr," -d create Device RGB %s marker visualisation (measured%s)\n",vrml_format(),vrml_ext()); +// fprintf(stderr," -d y create Device YCbCr %s marker visualisation (measured%s)\n",vrml_format(),vrml_ext()); + fprintf(stderr," -x Use %s axes\n",vrml_format()); fprintf(stderr," -f [illum] Use Fluorescent Whitening Agent compensation [opt. simulated inst. illum.:\n"); fprintf(stderr," M0, M1, M2, A, C, D50 (def.), D50M2, D65, F5, F8, F10 or file.sp]\n"); fprintf(stderr," -i illum Choose illuminant for computation of CIE XYZ from spectral data & FWA:\n"); @@ -74,6 +89,8 @@ usage(void) { typedef struct { char sid[50]; /* sample id */ char loc[100]; /* sample location (empty if none) */ + double rgb[3]; /* RGB value if RGB device space present, or YCbCr if dovrml==4 */ + double ycc[3]; /* YCbCr if RGB and dovrml==4 */ int og; /* Out of gamut flag */ double xyz[3]; /* XYZ value */ double v[3]; /* Lab value */ @@ -82,17 +99,25 @@ typedef struct { double ide[3]; /* Lab Component DE */ } pval; +/* Histogram bin type */ +typedef struct { + int count; /* Raw count */ + double val; /* Normalized value */ + double min, max; /* Bin range */ +} hbin; + int main(int argc, char *argv[]) { int fa,nfa,mfa; /* current argument we're looking at */ int verb = 0; /* Verbose level */ int norm = 0; /* 1 = norm to White Y, 2 = norm to White XYZ */ - /* 3 = norm to White X+Y+Z */ + /* 3 = norm to White X+Y+Z, 4 = norm to average XYZ */ int usestdd50 = 0; /* Use standard D50 instead of avg white as reference */ int cie94 = 0; int cie2k = 0; - int dovrml = 0; + int dovrml = 0; /* 1 = PCS vector, 2 = PCS marker, 3 = RGB, 4 - YCbCr */ int doaxes = 0; + int dohisto = 0; /* Plot histogram of delta E's */ int dosort = 0; char ccmxname[MAXNAMEL+1] = "\000"; /* Colorimeter Correction Matrix name */ ccmx *cmx = NULL; /* Colorimeter Correction Matrix */ @@ -106,6 +131,7 @@ int main(int argc, char *argv[]) char name[MAXNAMEL+1]; /* Patch filename */ int isdisp; /* nz if display */ int isdnormed; /* Has display data been normalised to 100 ? */ + int isrgb; /* Is RGB device space ? */ int npat; /* Number of patches */ int nig; /* Number of patches in gamut */ double w[3]; /* XYZ of "white" */ @@ -125,16 +151,11 @@ int main(int argc, char *argv[]) icmXYZNumber labw = icmD50; /* The Lab white reference */ - char out_name[MAXNAMEL+4+1]; /* VRML name */ + char out_name[MAXNAMEL+4+1]; /* VRML/X3D name */ vrml *wrl = NULL; int i, j, n; -#if defined(__IBMC__) - _control87(EM_UNDERFLOW, EM_UNDERFLOW); - _control87(EM_OVERFLOW, EM_OVERFLOW); -#endif - if (argc <= 1) usage(); @@ -182,15 +203,31 @@ int main(int argc, char *argv[]) norm = 3; } + else if (argv[fa][1] == 'M') { + norm = 4; + } + else if (argv[fa][1] == 'D') usestdd50 = 1; - /* VRML */ + /* VRML/X3D */ else if (argv[fa][1] == 'w') dovrml = 1; + else if (argv[fa][1] == 'W') dovrml = 2; + else if (argv[fa][1] == 'd') { + dovrml = 3; + if (na != NULL) { /* Argument is present - RGB or YCbCr. */ + fa = nfa; + if (strcmp(na, "y") == 0) + dovrml = 4; + else + usage(); + } + } + /* Axes */ else if (argv[fa][1] == 'x') doaxes = 1; @@ -206,6 +243,10 @@ int main(int argc, char *argv[]) cie2k = 1; } + /* Plot histogram */ + else if (argv[fa][1] == 'h') + dohisto = 1; + /* Sort */ else if (argv[fa][1] == 's') dosort = 1; @@ -337,13 +378,13 @@ int main(int argc, char *argv[]) if (fa >= argc || argv[fa][0] == '-') usage(); strncpy(cg[1].name,argv[fa],MAXNAMEL); cg[1].name[MAXNAMEL] = '\000'; - /* Create VRML name */ + /* Create VRML/X3D base name */ { char *xl; strcpy(out_name, cg[1].name); if ((xl = strrchr(out_name, '.')) == NULL) /* Figure where extention is */ xl = out_name + strlen(out_name); - strcpy(xl,".wrl"); + xl[0] = '\000'; /* Remove extension */ } if (fwacomp && spec == 0) @@ -396,11 +437,14 @@ int main(int argc, char *argv[]) int sidx; /* Sample ID index */ int sldx = -1; /* Sample location index, < 0 if invalid */ int xix, yix, zix; + int rgbix[3]; /* RGB field indexes (if rgb ) */ /* Open CIE target values */ cgf = new_cgats(); /* Create a CGATS structure */ cgf->add_other(cgf, ""); /* Allow any signature file */ + DBG(("Opening file '%s'\n",cg[n].name)) + if (cgf->read_name(cgf, cg[n].name)) error("CGATS file '%s' read error : %s",cg[n].name,cgf->err); @@ -438,34 +482,50 @@ int main(int argc, char *argv[]) cg[n].isdnormed = 0; cg[n].w[0] = cg[n].w[1] = cg[n].w[2] = 0.0; - if ((ti = cgf->find_kword(cgf, 0, "DEVICE_CLASS")) < 0) - error ("Input file '%s' doesn't contain keyword DEVICE_CLASS",cg[n].name); - - if (strcmp(cgf->t[0].kdata[ti],"DISPLAY") == 0) { - cg[n].isdisp = 1; - cg[n].isdnormed = 1; /* Assume display type is normalised to 100 */ - illum = icxIT_none; /* Displays are assumed to be self luminous */ - /* ?? What if two files are different ?? */ - } - - if (cg[n].isdisp) { + if ((ti = cgf->find_kword(cgf, 0, "DEVICE_CLASS")) < 0) { + warning("Input file '%s' doesn't contain keyword DEVICE_CLASS",cg[n].name); - if ((ti = cgf->find_kword(cgf, 0, "LUMINANCE_XYZ_CDM2")) >= 0) { - if (sscanf(cgf->t[0].kdata[ti], " %lf %lf %lf ",&cg[n].w[0], &cg[n].w[1], &cg[n].w[2]) != 3) - cg[n].w[0] = cg[n].w[1] = cg[n].w[2] = 0.0; + } else { + if (strcmp(cgf->t[0].kdata[ti],"DISPLAY") == 0) { + cg[n].isdisp = 1; + cg[n].isdnormed = 1; /* Assume display type is normalised to 100 */ + illum = icxIT_none; /* Displays are assumed to be self luminous */ + /* ?? What if two files are different ?? */ } - - /* See if there is an explicit tag indicating data has been normalised to Y = 100 */ - if ((ti = cgf->find_kword(cgf, 0, "NORMALIZED_TO_Y_100")) >= 0) { - if (strcmp(cgf->t[0].kdata[ti],"NO") == 0) { - cg[n].isdnormed = 0; - } else { - cg[n].isdnormed = 1; + + if (cg[n].isdisp) { + + if ((ti = cgf->find_kword(cgf, 0, "LUMINANCE_XYZ_CDM2")) >= 0) { + if (sscanf(cgf->t[0].kdata[ti], " %lf %lf %lf ",&cg[n].w[0], &cg[n].w[1], &cg[n].w[2]) != 3) + cg[n].w[0] = cg[n].w[1] = cg[n].w[2] = 0.0; + } + + /* See if there is an explicit tag indicating data has been normalised to Y = 100 */ + if ((ti = cgf->find_kword(cgf, 0, "NORMALIZED_TO_Y_100")) >= 0) { + if (strcmp(cgf->t[0].kdata[ti],"NO") == 0) { + cg[n].isdnormed = 0; + } else { + cg[n].isdnormed = 1; + } } } } } + /* See if it has RGB device space (for -d option) */ + if ((rgbix[0] = cgf->find_field(cgf, 0, "RGB_R")) >= 0 + && cgf->t[0].ftype[rgbix[0]] == r_t + + && (rgbix[1] = cgf->find_field(cgf, 0, "RGB_G")) >= 0 + && cgf->t[0].ftype[rgbix[1]] == r_t + + && (rgbix[2] = cgf->find_field(cgf, 0, "RGB_B")) >= 0 + && cgf->t[0].ftype[rgbix[2]] == r_t) { + cg[n].isrgb = 1; + } else { + cg[n].isrgb = 0; + } + /* Read all the target patches */ if (cg[n].npat <= 0) error("No sets of data in file '%s'",cg[n].name); @@ -535,14 +595,14 @@ int main(int argc, char *argv[]) cg[n].pat[i].xyz[1] = *((double *)cgf->t[0].fdata[i][yix]); cg[n].pat[i].xyz[2] = *((double *)cgf->t[0].fdata[i][zix]); - if (isLab) { /* Convert to XYZ */ + if (isLab) { /* Convert Lab to XYZ */ icmLab2XYZ(&icmD50, cg[n].pat[i].xyz, cg[n].pat[i].xyz); } //printf("~1 file %d patch %d = XYZ %f %f %f\n", n,i,cg[n].pat[i].xyz[0],cg[n].pat[i].xyz[1],cg[n].pat[i].xyz[2]); /* restore normalised display values to absolute */ if (cg[n].isdnormed) { - if (cg[n].w[1] > 0.0) { + if (cg[n].w[1] > 0.0) { // Found absoluute display white tag cg[n].pat[i].xyz[0] *= cg[n].w[1]/100.0; cg[n].pat[i].xyz[1] *= cg[n].w[1]/100.0; cg[n].pat[i].xyz[2] *= cg[n].w[1]/100.0; @@ -560,6 +620,16 @@ int main(int argc, char *argv[]) if (n == 1 && cmx != NULL) { cmx->xform(cmx, cg[n].pat[i].xyz, cg[n].pat[i].xyz); } + + if ((dovrml == 3 || dovrml == 4) && cg[n].isrgb) { + cg[n].pat[i].rgb[0] = 0.01 * *((double *)cgf->t[0].fdata[i][rgbix[0]]); + cg[n].pat[i].rgb[1] = 0.01 * *((double *)cgf->t[0].fdata[i][rgbix[1]]); + cg[n].pat[i].rgb[2] = 0.01 * *((double *)cgf->t[0].fdata[i][rgbix[2]]); + + if (dovrml == 4) { + icmRec709_RGBd_2_YPbPr(cg[n].pat[i].ycc, cg[n].pat[i].rgb); + } + } } } else { /* Using spectral data */ @@ -677,7 +747,7 @@ int main(int argc, char *argv[]) /* restore normalised display values to absolute */ if (cg[n].isdnormed) { - if (cg[n].w[1] > 0.0) { + if (cg[n].w[1] > 0.0) { // Found absoluute display white tag cg[n].pat[i].xyz[0] *= cg[n].w[1]; cg[n].pat[i].xyz[1] *= cg[n].w[1]; cg[n].pat[i].xyz[2] *= cg[n].w[1]; @@ -697,10 +767,11 @@ int main(int argc, char *argv[]) /* Locate the patch with maximum Y, a possible white patch */ - if (norm) { + /* in case we need it latter. */ + { int ii; - if (cg[n].w[1] == 0.0) { /* No white patch */ + if (cg[n].w[1] == 0.0) { /* No display white patch tag */ /* Locate patch with biggest Y, assume it is white... */ for (i = 0; i < cg[n].npat; i++) { @@ -709,15 +780,25 @@ int main(int argc, char *argv[]) ii = i; } } - if (verb) printf("File %d Chose patch %d as white, xyz %f %f %f\n", + if (verb) printf("File %d Chose patch %d as white, XYZ %f %f %f\n", n, ii+1,cg[n].w[0],cg[n].w[1],cg[n].w[2]); } else { - if (verb) printf("File %d White is from display luminance ref. xyz %f %f %f\n", + if (verb) printf("File %d White is from display luminance ref. XYZ %f %f %f\n", n, cg[n].w[0],cg[n].w[1],cg[n].w[2]); } icmCpy3(cg[n].nw, cg[n].w); } + cgf->del(cgf); /* Clean up */ + } /* Next file */ + if (norm == 4) { /* Normalise to average of white XYZ of the two files */ + icmBlend3(cg[0].w, cg[0].w, cg[1].w, 0.5); + icmCpy3(cg[1].w, cg[0].w); +// if (verb) printf("Average White XYZ %f %f %f\n",cg[0].w[0],cg[0].w[1],cg[0].w[2]); + } + + /* For both files */ + for (n = 0; n < 2; n++) { /* Normalise this file to white = 1.0 or D50 */ if (norm) { @@ -725,7 +806,9 @@ int main(int argc, char *argv[]) double chmat[3][3]; /* Chromatic adapation matrix */ - if (norm == 2) { /* Norm to white XYZ */ + DBG(("Normalizng '%s' to white\n",cg[n].name)) + + if (norm == 2 || norm == 4) { /* Norm to white XYZ */ icmXYZNumber s_wp; icmAry2XYZ(s_wp, cg[n].w); icmChromAdaptMatrix(ICM_CAM_BRADFORD, icmD50, s_wp, chmat); @@ -736,7 +819,7 @@ int main(int argc, char *argv[]) cg[n].pat[i].xyz[0] *= 100.0 / cg[n].w[1]; cg[n].pat[i].xyz[1] *= 100.0 / cg[n].w[1]; cg[n].pat[i].xyz[2] *= 100.0 / cg[n].w[1]; - } else if (norm == 2) { + } else if (norm == 2 || norm == 4) { icmMulBy3x3(cg[n].pat[i].xyz, chmat, cg[n].pat[i].xyz); } else { cg[n].pat[i].xyz[0] *= 100.0 / (cg[n].w[0] + cg[n].w[1] + cg[n].w[2]); @@ -750,7 +833,7 @@ int main(int argc, char *argv[]) cg[n].nw[0] *= 100.0 / cg[n].w[1]; cg[n].nw[1] *= 100.0 / cg[n].w[1]; cg[n].nw[2] *= 100.0 / cg[n].w[1]; - } else if (norm == 2) { + } else if (norm == 2 || norm == 4) { icmMulBy3x3(cg[n].nw, chmat, cg[n].w); } else { cg[n].nw[0] *= 100.0 / (cg[n].w[0] + cg[n].w[1] + cg[n].w[2]); @@ -759,8 +842,8 @@ int main(int argc, char *argv[]) } //printf("~1 file %d norm white XYZ %f %f %f\n", n,cg[n].nw[0], cg[n].nw[1], cg[n].nw[2]); } - cgf->del(cgf); /* Clean up */ - } + } /* Next file */ + if (cmx != NULL) cmx->del(cmx); cmx = NULL; @@ -791,12 +874,24 @@ int main(int argc, char *argv[]) icmXYZNumber s_wp; int rv; + DBG(("Figuring out of gamut patches\n")) + /* Convert sample PCS to relative */ - icmAry2XYZ(s_wp, cg[0].nw); +//printf(" cg[0].w %f %f %f\n", cg[0].w[0], cg[0].w[1], cg[0].w[2]); + icmAry2XYZ(s_wp, cg[0].w); + s_wp.X /= s_wp.Y; // Normalise the white to 1.0 + s_wp.Y /= s_wp.Y; // so that matrix doesn't change magnitude + s_wp.Z /= s_wp.Y; +//printf(" s_wp %f %f %f\n", s_wp.X, s_wp.Y, s_wp.Z); icmChromAdaptMatrix(ICM_CAM_BRADFORD, icmD50, s_wp, chmat); +//printf("~1 matrix = \n"); +//printf(" %f %f %f\n", chmat[0][0], chmat[0][1], chmat[0][2]); +//printf(" %f %f %f\n", chmat[1][0], chmat[1][1], chmat[1][2]); +//printf(" %f %f %f\n", chmat[2][0], chmat[2][1], chmat[2][2]); for (i = 0; i < cg[0].npat; i++) { icmMulBy3x3(in, chmat, cg[0].pat[i].xyz); + //printf("~1 %d: xyz %f %f %f, rel %f %f %f\n", i+1, cg[0].pat[i].xyz[0], cg[0].pat[i].xyz[1], cg[0].pat[i].xyz[2], in[0], in[1], in[2]); if ((rv = luo->inv_lookup(luo, out, in)) > 0 || 1) { @@ -816,7 +911,13 @@ int main(int argc, char *argv[]) } } if (verb) - fprintf(verbo,"No of test patches in gamut = %d/%d\n",cg[0].npat - cg[0].nig,cg[0].npat); + fprintf(verbo,"No of test patches in gamut = %d/%d\n",cg[0].nig,cg[0].npat); + } + + if (cg[0].nig <= 0) { + if (verb) + fprintf(verbo,"No test patches in gamut - givig up\n"); + return 0; } /* Adjust the Lab reference white to be the mean of the white of the two files */ @@ -829,6 +930,8 @@ int main(int argc, char *argv[]) printf("L*a*b* white reference = XYZ %f %f %f\n",labw.X,labw.Y,labw.Z); } + /* labw defaults to D50 */ + /* Convert XYZ to Lab */ for (n = 0; n < 2; n++) { for (i = 0; i < cg[n].npat; i++) { @@ -837,11 +940,9 @@ int main(int argc, char *argv[]) } /* Compute the delta E's */ + DBG(("Computing the delta E's\n")) for (i = 0; i < cg[0].npat; i++) { - if (cg[0].pat[i].og) /* Skip out of gamut patches */ - continue; - cg[0].pat[i].ixde[0] = fabs(cg[0].pat[i].xyz[0] - cg[1].pat[match[i]].xyz[0]); cg[0].pat[i].ixde[1] = fabs(cg[0].pat[i].xyz[1] - cg[1].pat[match[i]].xyz[1]); cg[0].pat[i].ixde[2] = fabs(cg[0].pat[i].xyz[2] - cg[1].pat[match[i]].xyz[2]); @@ -868,6 +969,111 @@ int main(int argc, char *argv[]) HEAPSORT(int, sort, cg[0].npat); #undef HEAP_COMPARE + /* - - - - - - - - - - */ + /* Plot a dE histogram */ + if (dohisto) { + double demax = -1e6, demin = 1e6; + int maxbins = 50; /* Maximum bins */ + int minbins = 20; /* Target minimum bins (depends on distribution) */ + int mincount = 10; /* Minimum number of points in a bin */ + double mbwidth; + int nbins = 0; + hbin *bins = NULL; + pval **stpat; /* Pointers to sorted cg[0].pat[] */ + double tval; + double *x, *y; + + DBG(("Plotting histogram\n")) + + /* Figure out the range of dE's */ + for (i = 0; i < cg[0].npat; i++) { + double de = cg[0].pat[i].de; + + if (de > demax) + demax = de; + if (de < demin) + demin = de; + } + + if (demax < 1e-6) + error("histogram: dE range is too small to plot"); + + /* Bin width that gives maxbins */ + mbwidth = demax / maxbins; + + /* Reduce mincount if needed to get minbins */ + if (cg[0].npat/minbins < mincount) + mincount = cg[0].npat/minbins; + + if ((bins = (hbin *)calloc(maxbins, sizeof(hbin))) == NULL) + error("malloc of histogram bins failed"); + + if ((stpat = (pval **)malloc(sizeof(pval *) * cg[0].npat)) == NULL) + error("Malloc failed - stpat[]"); + + for (i = 0; i < cg[0].npat; i++) + stpat[i] = &cg[0].pat[i]; + + /* Sort the dE's */ +#define HEAP_COMPARE(A,B) (A->de < B->de) + HEAPSORT(pval *, stpat, cg[0].npat); +#undef HEAP_COMPARE + + /* Create bins and add points */ + bins[0].min = 0.0; + for (nbins = i = 0; i < cg[0].npat && nbins < maxbins; i++) { + double de = stpat[i]->de; + + /* Move on to next bin ? */ + if (bins[nbins].count >= mincount + && (de - bins[nbins].min) >= mbwidth) { + if (i > 0) + bins[nbins].max = 0.5 * (de + stpat[i-1]->de); + else + bins[nbins].max = de; + nbins++; + bins[nbins].min = bins[nbins-1].max; + } + bins[nbins].count++; + bins[nbins].max = de; + } + if (bins[nbins].count != 0) + nbins++; + + /* Compute value */ + tval = 0.0; + for (i = 0; i < nbins; i++) { + bins[i].val = bins[i].count/(bins[i].max - bins[i].min); + tval += bins[i].val; + } + + tval /= 100.0; /* Make it % */ + for (i = 0; i < nbins; i++) { + bins[i].val /= tval; + if (verb) fprintf(verbo,"Bin %d, %f - %f, % 2.4f%%, count %d\n", + i,bins[i].min,bins[i].max,bins[i].val,bins[i].count); + } + + /* Plot it */ + if ((x = (double *)calloc(nbins+1, sizeof(double))) == NULL) + error("malloc of histogram x array"); + if ((y = (double *)calloc(nbins+1, sizeof(double))) == NULL) + error("malloc of histogram y array"); + + for (i = 0; i < nbins; i++) { + x[i] = 0.5 * (bins[i].min + bins[i].max); + y[i] = bins[i].val; + } + x[i] = demax; + y[i] = 0.0; + do_plot(x, y, NULL, NULL, nbins+1); + + free(y); + free(x); + free(bins); + free(stpat); + } + /* - - - - - - - - - - */ /* Figure out the report */ { @@ -879,13 +1085,60 @@ int main(int argc, char *argv[]) double rad; double aierr[3] = { 0.0, 0.0, 0.0 }; double aixerr[3] = { 0.0, 0.0, 0.0 }; + double red[3] = { 1.0, 0.2, 0.2 }; + double green[3] = { 0.2, 1.0, 0.2 }; + double min[3], max[3]; + double col[3]; if (dovrml) { - wrl = new_vrml(out_name, doaxes, 0); + double vol; + int k; + + wrl = new_vrml(out_name, doaxes, (dovrml == 3 || dovrml == 4) ? vrml_rgb : vrml_lab); wrl->start_line_set(wrl, 0); - /* Fudge sphere diameter */ - rad = 10.0/pow(cg[0].npat, 1.0/3.0); + for (j = 0; j < 3; j++) { + min[j] = 1e6; + max[j] = -1e6; + } + + /* Get bounding box */ + for (i = 0; i < cg[0].npat; i++) { + for (k = 0; k < 2; k++) { + for (j = 0; j < 3; j++) { + if (dovrml == 3 || dovrml == 4) { /* RGB or YCC device plot */ + if (cg[k].pat[i].rgb[j] > max[j]) + max[j] = cg[k].pat[i].rgb[j]; + if (cg[k].pat[i].rgb[j] < min[j]) + min[j] = cg[k].pat[i].rgb[j]; + } else { + if (cg[k].pat[i].v[j] > max[j]) + max[j] = cg[k].pat[i].v[j]; + if (cg[k].pat[i].v[j] < min[j]) + min[j] = cg[k].pat[i].v[j]; + } + } + } + } + + for (vol = 1.0, j = 0; j < 3; j++) { +//printf("~1 size[%d] = %f\n",j, max[j] - min[j]); + vol *= (max[j] - min[j]); + } + vol = sqrt(vol); +//printf("~1 vol = %f\n",vol); + rad = 0.02 * vol/pow(cg[0].npat, 1.0/3.0); +//printf("~1 rad = %f\n",rad); + + if (dovrml == 3) // Hack + rad = 0.02; + else if (dovrml == 4) // Hack + rad = 0.015; + } + + if (dovrml && (dovrml == 3 || dovrml == 4)) { /* RGB/YCC device plot */ + if (!cg[0].isrgb || !cg[1].isrgb) + error("Both files must have RGB devices space for -d option"); } /* Do overall results */ @@ -932,13 +1185,45 @@ int main(int argc, char *argv[]) merr = de; if (dovrml) { - if (de > 1e-6) { - wrl->add_vertex(wrl, 0, cg[0].pat[j].v); - wrl->add_vertex(wrl, 0, cg[1].pat[j].v); - } - if (dovrml == 2) { - wrl->add_marker(wrl, cg[0].pat[j].v, NULL, rad); - wrl->add_marker(wrl, cg[1].pat[j].v, NULL, rad); + if ((dovrml == 3 || dovrml == 4)) { /* RGB/YCC device plot */ + double *val1, *val2; + int k; + + if (dovrml == 3) { + val1 = cg[0].pat[i].rgb; + val2 = cg[1].pat[match[i]].rgb; + } else { + val1 = cg[0].pat[i].ycc; + val2 = cg[1].pat[match[i]].ycc; + } + + de = icmNorm33(val1, val2); + + if (de > 1e-6) { + wrl->add_vertex(wrl, 0, val1); + wrl->add_vertex(wrl, 0, val2); + } + +#ifdef NEVER // Green target + wrl->add_marker(wrl, val1, green, rad); + +#else // Natural color + for (k = 0; k < 3; k++) + col[k] = 0.3 + 0.7 * (cg[0].pat[i].rgb[k] - min[k])/(max[k] - min[k]); + wrl->add_marker(wrl, val1, col, rad); +#endif + + wrl->add_marker_trans(wrl, val2, red, 0.3, rad * 0.99); + + } else { /* PCS */ + if (de > 1e-6) { + wrl->add_vertex(wrl, 0, cg[0].pat[i].v); + wrl->add_vertex(wrl, 0, cg[1].pat[match[i]].v); + } + if (dovrml == 2) { + wrl->add_marker(wrl, cg[0].pat[i].v, green, rad); + wrl->add_marker(wrl, cg[1].pat[match[i]].v, red, rad); + } } } @@ -997,6 +1282,18 @@ int main(int argc, char *argv[]) fprintf(verbo,"No of test patches in best 90%% are = %d\n",n90); } printf("Verify results:\n"); + if (norm == 4) + printf(" L*a*b* ref. = average XYZ %f %f %f\n",cg[0].w[0],cg[0].w[1],cg[0].w[2]); + else if (norm == 1) { + printf(" File 1 L* ref. Y %f\n", cg[0].w[1]); + printf(" File 2 L* ref. Y %f\n", cg[1].w[1]); + } else if (norm == 2) { + printf(" File 1 L*a*b* ref. XYZ %f %f %f\n", cg[0].w[0],cg[0].w[1],cg[0].w[2]); + printf(" File 2 L*a*b* ref. XYZ %f %f %f\n", cg[1].w[0],cg[1].w[1],cg[1].w[2]); + } else if (norm == 3) { + printf(" File 1 L* ref. X+Y+Z %f %f %f\n", cg[0].w[0],cg[0].w[1],cg[0].w[2]); + printf(" File 2 L* ref. X+Y+Z %f %f %f\n", cg[1].w[0],cg[1].w[1],cg[1].w[2]); + } printf(" Total errors%s: peak = %f, avg = %f\n", cie2k ? " (CIEDE2000)" : cie94 ? " (CIE94)" : "", merr, aerr); printf(" Worst 10%% errors%s: peak = %f, avg = %f\n", cie2k ? " (CIEDE2000)" : cie94 ? " (CIE94)" : "", merr10, aerr10); printf(" Best 90%% errors%s: peak = %f, avg = %f\n", cie2k ? " (CIEDE2000)" : cie94 ? " (CIE94)" : "", merr90, aerr90); diff --git a/profile/invprofcheck.c b/profile/invprofcheck.c index 0965096..8cb9f34 100644 --- a/profile/invprofcheck.c +++ b/profile/invprofcheck.c @@ -37,6 +37,8 @@ #include "numlib.h" #include "icc.h" #include "xicc.h" +#include "vrml.h" +#include "ui.h" /* Resolution of the sampling modes */ #define TRES 11 @@ -92,19 +94,14 @@ void usage(void) { fprintf(stderr," -R res Specific grid resolution\n"); fprintf(stderr," -c Show CIE94 delta E values\n"); fprintf(stderr," -k Show CIEDE2000 delta E values\n"); - fprintf(stderr," -w create VRML visualisation (profile.wrl)\n"); - fprintf(stderr," -x Use VRML axes\n"); + fprintf(stderr," -w create %s visualisation (profile%s)\n",vrml_format(),vrml_ext()); + fprintf(stderr," -x Use %s axes\n",vrml_format()); fprintf(stderr," -e Color vectors acording to delta E\n"); fprintf(stderr," profile.icm Profile to check\n"); exit(1); } -FILE *start_vrml(char *name, int doaxes); -void start_line_set(FILE *wrl); -void add_vertex(FILE *wrl, double pp[3]); -void make_lines(FILE *wrl, int ppset); -void make_de_lines(FILE *wrl); -void end_vrml(FILE *wrl); +static void DE2RGB(double *out, double in); #if defined(__IBMC__) && defined(_M_IX86) void bug_workaround(int *co) { }; /* Workaround optimiser bug */ @@ -123,14 +120,14 @@ main( int doaxes = 0; int dodecol = 0; char in_name[MAXNAMEL+1]; - char out_name[MAXNAMEL+1], *xl; /* VRML name */ + char out_name[MAXNAMEL+1], *xl; /* VRML/X3D name */ icmFile *rd_fp; icc *icco; int rv = 0; int tres = TRES; double tlimit = -1.0; double klimit = -1.0; - FILE *wrl = NULL; + vrml *wrl = NULL; error_program = "invprofcheck"; @@ -206,7 +203,7 @@ main( klimit = limit/100.0; } - /* VRML */ + /* VRML/X3D */ else if (argv[fa][1] == 'w' || argv[fa][1] == 'W') dovrml = 1; @@ -242,7 +239,7 @@ main( strncpy(out_name,in_name,MAXNAMEL-4); out_name[MAXNAMEL-4] = '\000'; if ((xl = strrchr(out_name, '.')) == NULL) /* Figure where extention is */ xl = out_name + strlen(out_name); - strcpy(xl,".wrl"); + xl[0] = '\000'; /* Remove extension */ /* Open up the file for reading */ if ((rd_fp = new_icmFileStd_name(in_name,"r")) == NULL) @@ -282,8 +279,8 @@ main( } if (dovrml) { - wrl = start_vrml(out_name, doaxes); - start_line_set(wrl); + wrl = new_vrml(out_name, doaxes, vrml_lab); + wrl->start_line_set(wrl, 0); } /* Grab any device calibration curves */ @@ -357,8 +354,21 @@ main( /* Delta E */ if (dovrml) { - add_vertex(wrl, pcsin); - add_vertex(wrl, pcsout); + int ix[2]; + + /* Add the verticies */ + ix[0] = wrl->add_vertex(wrl, 0, pcsin); + ix[1] = wrl->add_vertex(wrl, 0, pcsout); + + /* Add the line */ + if (dodecol) { /* Lines with color determined by length */ + double rgb[3]; + DE2RGB(rgb, icmNorm33(pcsin, pcsout)); + wrl->add_col_line(wrl, 0, ix, rgb); + + } else { /* Natural color */ + wrl->add_line(wrl, 0, ix); + } } /* Check the result */ @@ -386,11 +396,8 @@ main( } } if (dovrml) { - if (dodecol) - make_de_lines(wrl); - else - make_lines(wrl, 2); - end_vrml(wrl); + wrl->make_lines_vc(wrl, 0, 0.0); + wrl->del(wrl); } printf("Profile check complete, errors%s: max. = %f, avg. = %f, RMS = %f\n", @@ -409,291 +416,8 @@ main( /* ------------------------------------------------ */ -/* Some simple functions to do basix VRML work */ -/* !!! Should change to plot/vrml lib !!! */ - -#define GAMUT_LCENT 50.0 -static int npoints = 0; -static int paloc = 0; -static struct { double pp[3]; } *pary; - -static void Lab2RGB(double *out, double *in); -static void DE2RGB(double *out, double in); - -FILE *start_vrml(char *name, int doaxes) { - FILE *wrl; - - /* Define the axis boxes */ - struct { - double x, y, z; /* Box center */ - double wx, wy, wz; /* Box size */ - double r, g, b; /* Box color */ - } axes[5] = { - { 0, 0, 50-GAMUT_LCENT, 2, 2, 100, .7, .7, .7 }, /* L axis */ - { 50, 0, 0-GAMUT_LCENT, 100, 2, 2, 1, 0, 0 }, /* +a (red) axis */ - { 0, -50, 0-GAMUT_LCENT, 2, 100, 2, 0, 0, 1 }, /* -b (blue) axis */ - { -50, 0, 0-GAMUT_LCENT, 100, 2, 2, 0, 1, 0 }, /* -a (green) axis */ - { 0, 50, 0-GAMUT_LCENT, 2, 100, 2, 1, 1, 0 }, /* +b (yellow) axis */ - }; - - /* Define the labels */ - struct { - double x, y, z; - double size; - char *string; - double r, g, b; - } labels[6] = { - { -2, 2, -GAMUT_LCENT + 100 + 10, 10, "+L*", .7, .7, .7 }, /* Top of L axis */ - { -2, 2, -GAMUT_LCENT - 10, 10, "0", .7, .7, .7 }, /* Bottom of L axis */ - { 100 + 5, -3, 0-GAMUT_LCENT, 10, "+a*", 1, 0, 0 }, /* +a (red) axis */ - { -5, -100 - 10, 0-GAMUT_LCENT, 10, "-b*", 0, 0, 1 }, /* -b (blue) axis */ - { -100 - 15, -3, 0-GAMUT_LCENT, 10, "-a*", 0, 0, 1 }, /* -a (green) axis */ - { -5, 100 + 5, 0-GAMUT_LCENT, 10, "+b*", 1, 1, 0 }, /* +b (yellow) axis */ - }; - - if ((wrl = fopen(name,"w")) == NULL) - error("Error opening VRML file '%s'\n",name); - - npoints = 0; - - fprintf(wrl,"#VRML V2.0 utf8\n"); - fprintf(wrl,"\n"); - fprintf(wrl,"# Created by the Argyll CMS\n"); - fprintf(wrl,"Transform {\n"); - fprintf(wrl,"children [\n"); - fprintf(wrl," NavigationInfo {\n"); - fprintf(wrl," type \"EXAMINE\" # It's an object we examine\n"); - fprintf(wrl," } # We'll add our own light\n"); - fprintf(wrl,"\n"); - fprintf(wrl," DirectionalLight {\n"); - fprintf(wrl," direction 0 0 -1 # Light illuminating the scene\n"); - fprintf(wrl," direction 0 -1 0 # Light illuminating the scene\n"); - fprintf(wrl," }\n"); - fprintf(wrl,"\n"); - fprintf(wrl," Viewpoint {\n"); - fprintf(wrl," position 0 0 340 # Position we view from\n"); - fprintf(wrl," }\n"); - fprintf(wrl,"\n"); - if (doaxes != 0) { - int n; - fprintf(wrl," # Lab axes as boxes:\n"); - for (n = 0; n < 5; n++) { - fprintf(wrl," Transform { translation %f %f %f\n", axes[n].x, axes[n].y, axes[n].z); - fprintf(wrl," children [\n"); - fprintf(wrl," Shape{\n"); - fprintf(wrl," geometry Box { size %f %f %f }\n", - axes[n].wx, axes[n].wy, axes[n].wz); - fprintf(wrl," appearance Appearance { material Material "); - fprintf(wrl,"{ diffuseColor %f %f %f} }\n", axes[n].r, axes[n].g, axes[n].b); - fprintf(wrl," }\n"); - fprintf(wrl," ]\n"); - fprintf(wrl," }\n"); - } - fprintf(wrl," # Axes identification:\n"); - for (n = 0; n < 6; n++) { - fprintf(wrl," Transform { translation %f %f %f\n", labels[n].x, labels[n].y, labels[n].z); - fprintf(wrl," children [\n"); - fprintf(wrl," Shape{\n"); - fprintf(wrl," geometry Text { string [\"%s\"]\n",labels[n].string); - fprintf(wrl," fontStyle FontStyle { family \"SANS\" style \"BOLD\" size %f }\n", - labels[n].size); - fprintf(wrl," }\n"); - fprintf(wrl," appearance Appearance { material Material "); - fprintf(wrl,"{ diffuseColor %f %f %f} }\n", labels[n].r, labels[n].g, labels[n].b); - fprintf(wrl," }\n"); - fprintf(wrl," ]\n"); - fprintf(wrl," }\n"); - } - fprintf(wrl,"\n"); - } - - return wrl; -} - -void -start_line_set(FILE *wrl) { - - fprintf(wrl,"\n"); - fprintf(wrl,"Shape {\n"); - fprintf(wrl," geometry IndexedLineSet { \n"); - fprintf(wrl," coord Coordinate { \n"); - fprintf(wrl," point [\n"); -} - -void add_vertex(FILE *wrl, double pp[3]) { - - fprintf(wrl,"%f %f %f,\n",pp[1], pp[2], pp[0]-GAMUT_LCENT); - - if (paloc < (npoints+1)) { - paloc = (paloc + 10) * 2; - if (pary == NULL) - pary = malloc(paloc * 3 * sizeof(double)); - else - pary = realloc(pary, paloc * 3 * sizeof(double)); - - if (pary == NULL) - error ("Malloc failed"); - } - pary[npoints].pp[0] = pp[0]; - pary[npoints].pp[1] = pp[1]; - pary[npoints].pp[2] = pp[2]; - npoints++; -} - - -void make_lines(FILE *wrl, int ppset) { - int i, j; - - fprintf(wrl," ]\n"); - fprintf(wrl," }\n"); - fprintf(wrl," coordIndex [\n"); - - for (i = 0; i < npoints;) { - for (j = 0; j < ppset; j++, i++) { - fprintf(wrl,"%d, ", i); - } - fprintf(wrl,"-1,\n"); - } - fprintf(wrl," ]\n"); - - /* Color */ - fprintf(wrl," colorPerVertex TRUE\n"); - fprintf(wrl," color Color {\n"); - fprintf(wrl," color [ # RGB colors of each vertex\n"); - - for (i = 0; i < npoints; i++) { - double rgb[3], Lab[3]; - Lab[0] = pary[i].pp[0]; - Lab[1] = pary[i].pp[1]; - Lab[2] = pary[i].pp[2]; - Lab2RGB(rgb, Lab); - fprintf(wrl," %f %f %f,\n", rgb[0], rgb[1], rgb[2]); - } - fprintf(wrl," ] \n"); - fprintf(wrl," }\n"); - /* End color */ - - fprintf(wrl," }\n"); - fprintf(wrl,"} # end shape\n"); -} - -/* Assume 2 ppset, and make line color prop to length */ -void make_de_lines(FILE *wrl) { - int i, j; - - fprintf(wrl," ]\n"); - fprintf(wrl," }\n"); - fprintf(wrl," coordIndex [\n"); - - for (i = 0; i < npoints;) { - for (j = 0; j < 2; j++, i++) { - fprintf(wrl,"%d, ", i); - } - fprintf(wrl,"-1,\n"); - } - fprintf(wrl," ]\n"); - - /* Color */ - fprintf(wrl," colorPerVertex TRUE\n"); - fprintf(wrl," color Color {\n"); - fprintf(wrl," color [ # RGB colors of each vertex\n"); - - for (i = 0; i < npoints; i++) { - double rgb[3], ss; - for (ss = 0.0, j = 0; j < 3; j++) { - double tt = (pary[i & ~1].pp[j] - pary[i | 1].pp[j]); - ss += tt * tt; - } - ss = sqrt(ss); - DE2RGB(rgb, ss); - fprintf(wrl," %f %f %f,\n", rgb[0], rgb[1], rgb[2]); - } - fprintf(wrl," ] \n"); - fprintf(wrl," }\n"); - /* End color */ - - fprintf(wrl," }\n"); - fprintf(wrl,"} # end shape\n"); -} - -void end_vrml(FILE *wrl) { - - fprintf(wrl,"\n"); - fprintf(wrl," ] # end of children for world\n"); - fprintf(wrl,"}\n"); - - if (fclose(wrl) != 0) - error("Error closing VRML file\n"); -} - - -/* Convert a gamut Lab value to an RGB value for display purposes */ -static void -Lab2RGB(double *out, double *in) { - double L = in[0], a = in[1], b = in[2]; - double x,y,z,fx,fy,fz; - double R, G, B; - - /* Scale so that black is visible */ - L = L * (100 - 40.0)/100.0 + 40.0; - - /* First convert to XYZ using D50 white point */ - if (L > 8.0) { - fy = (L + 16.0)/116.0; - y = pow(fy,3.0); - } else { - y = L/903.2963058; - fy = 7.787036979 * y + 16.0/116.0; - } - - fx = a/500.0 + fy; - if (fx > 24.0/116.0) - x = pow(fx,3.0); - else - x = (fx - 16.0/116.0)/7.787036979; - - fz = fy - b/200.0; - if (fz > 24.0/116.0) - z = pow(fz,3.0); - else - z = (fz - 16.0/116.0)/7.787036979; - - x *= 0.9642; /* Multiply by white point, D50 */ - y *= 1.0; - z *= 0.8249; - - /* Now convert to sRGB values */ - R = x * 3.2410 + y * -1.5374 + z * -0.4986; - G = x * -0.9692 + y * 1.8760 + z * 0.0416; - B = x * 0.0556 + y * -0.2040 + z * 1.0570; - - if (R < 0.0) - R = 0.0; - else if (R > 1.0) - R = 1.0; - - if (G < 0.0) - G = 0.0; - else if (G > 1.0) - G = 1.0; - - if (B < 0.0) - B = 0.0; - else if (B > 1.0) - B = 1.0; - - R = pow(R, 1.0/2.2); - G = pow(G, 1.0/2.2); - B = pow(B, 1.0/2.2); - - out[0] = R; - out[1] = G; - out[2] = B; -} - /* Convert a delta E value into a signal color: */ -static void -DE2RGB(double *out, double in) { +static void DE2RGB(double *out, double in) { struct { double de; double r, g, b; diff --git a/profile/ls2ti3.c b/profile/ls2ti3.c new file mode 100644 index 0000000..3330e16 --- /dev/null +++ b/profile/ls2ti3.c @@ -0,0 +1,380 @@ + +/* + * Argyll Color Correction System + * + * Read in the RGB & CIE data from a LightSpace format .bcs XML file + * and convert it into a .ti3 CGATs format suitable for the Argyll CMS. + * + * Derived from txt2cgats.c + * Author: Graeme W. Gill + * Date: 16/11/00 + * + * Copyright 2000 - 2014, Graeme W. Gill + * All rights reserved. + * + * This material is licenced under the GNU AFFERO GENERAL PUBLIC LICENSE Version 3 :- + * see the License.txt file for licencing details. + */ + +/* TTBD + + */ + +#define DEBUG + +#include +#include +#include +#include +#include +#include +#include +#include "copyright.h" +#include "aconfig.h" +#include "cgats.h" +#include "xspect.h" +#include "insttypes.h" +#include "mxml.h" +#include "numlib.h" +#include "ui.h" + +#define DEB 6 + +void +usage(char *mes) { + fprintf(stderr,"Convert LightSpace raw RGB device profile data to Argyll CGATS data, Version %s\n",ARGYLL_VERSION_STR); + fprintf(stderr,"Author: Graeme W. Gill, licensed under the AGPL Version 3\n"); + if (mes != NULL) + fprintf(stderr,"error: %s\n",mes); + fprintf(stderr,"usage: ls2ti3 [-v] infile outbase\n"); +/* fprintf(stderr," -v Verbose mode\n"); */ + fprintf(stderr," infile Input LightSpace .bcs file\n"); + fprintf(stderr," outbasename Output file basename for .ti3\n"); + exit(1); + } + +/* XML data type callback for mxmlLoadFile() */ +mxml_type_t +type_cb(mxml_node_t *node) { + mxml_node_t *parent = mxmlGetParent(node); + const char *pname; + const char *name = node->value.element.name; + + if (parent == NULL) + return MXML_TEXT; + + pname = parent->value.element.name; + +// printf("~1 type_cb got pnode '%s' node '%s'\n",pname, name); + + if (strcmp(pname, "stimuli") == 0 + && (strcmp(name, "red") == 0 + || strcmp(name, "green") == 0 + || strcmp(name, "blue") == 0)) + return MXML_REAL; + + if (strcmp(pname, "XYZ") == 0 + && (strcmp(name, "X") == 0 + || strcmp(name, "Y") == 0 + || strcmp(name, "Z") == 0)) + return MXML_REAL; + +#ifdef NEVER + if (strcmp(pname, "FileInformation") == 0 + && (strcmp(name, "Creator") == 0 + || strcmp(name, "CreationDate") == 0 + || strcmp(name, "Description") == 0)) + return MXML_OPAQUE; /* Don't split strings up */ +#endif + + return MXML_TEXT; +} + +struct _patch { + int pno; /* Patch number */ + + double dev[MAX_CHAN]; /* Device value */ + double XYZ[3]; /* XYZ value */ + +}; typedef struct _patch patch; + + +int main(int argc, char *argv[]) { + int i, j; + int fa,nfa; /* current argument we're looking at */ + int verb = 0; + static char inname[MAXNAMEL+1] = { 0 }; /* Input LightSpace .xml file */ + static char outname[MAXNAMEL+1] = { 0 }; /* Output cgats .ti3 file base name */ + double dev_scale = 1.0; /* Device value scaling */ + + FILE *ifp; + mxml_node_t *tree, *pnode, *node; + mxml_node_t *top, *data; + const char *attr, *name; + patch *patches; + + cgats *ocg; /* output cgats structure for .ti3 */ + time_t clk = time(0); + struct tm *tsp = localtime(&clk); + char *atm = asctime(tsp); /* Ascii time */ + + int islab = 0; /* CIE is Lab rather than XYZ */ + + int npat = 0; /* Number of patches */ + int ndchan = 3; /* Number of device channels, 0 = no device, RGB = 3, CMYK = 4 */ + cgats_set_elem *setel; /* Array of set value elements */ + + error_program = "ls2ti3"; + + if (argc < 3) + usage("Too few arguments"); + + /* Process the arguments */ + for(fa = 1;fa < argc;fa++) { + nfa = fa; /* skip to nfa if next argument is used */ + if (argv[fa][0] == '-') { /* Look for any flags */ + char *na = NULL; /* next argument after flag, null if none */ + + if (argv[fa][2] != '\000') + na = &argv[fa][2]; /* next is directly after flag */ + else { + if ((fa+1) < argc) { + if (argv[fa+1][0] != '-') { + nfa = fa + 1; + na = argv[nfa]; /* next is seperate non-flag argument */ + } + } + } + + if (argv[fa][1] == '?') + usage(NULL); + + else if (argv[fa][1] == 'v' || argv[fa][1] == 'V') + verb = 1; + else + usage("Unknown flag"); + } else + break; + } + + /* Get the file name argument */ + if (fa >= argc || argv[fa][0] == '-') usage("input filename not found"); + strncpy(inname,argv[fa++],MAXNAMEL); inname[MAXNAMEL] = '\000'; + + if (fa >= argc || argv[fa][0] == '-') usage("output basename not found"); + strncpy(outname,argv[fa++],MAXNAMEL-4); outname[MAXNAMEL-4] = '\000'; + strcat(outname,".ti3"); + + if ((ifp = fopen(inname, "r")) == NULL) + error("Unable to read '%s'",inname); + +#ifndef NEVER + tree = mxmlLoadFile(NULL, ifp, type_cb); +#else + tree = mxmlSAXLoadFd(NULL, fileno(ifp), type_cb, sax_cb, (void *)p); +#endif + fclose(ifp); + + if (tree == NULL) + error("Parsing '%s' failed",inname); + + if ((top = mxmlFindElement(tree, tree, NULL, NULL, NULL, MXML_DESCEND_FIRST)) == NULL + || mxmlGetType(top) != MXML_ELEMENT) + error("Failed to find top element in '%s'",inname); + + if (strcmp(top->value.element.name, "builder_color_space") != 0) + error("'%s' doesn't seem to be a LightSpace .bcs file ?",inname); + +#ifdef NEVER + /* Check that its CxF3 */ + if ((attr = mxmlElementGetAttr(top, "xmlns")) == NULL) + error("Failed to find CxF attribute %s in '%s'","xmlns", inname); + + if (strcmp(attr, "http://colorexchangeformat.com/CxF3-core") != 0) + error("File '%s' is not CxF format",inname); + + /* Look for header information */ + if ((pnode = mxmlFindElement(top, top, "head", NULL, NULL, MXML_DESCEND_FIRST)) == NULL) + error("Failed to find head in '%s'",inname); + + /* Grab the creation date */ + if ((node = mxmlFindElement(pnode, pnode, "created", NULL, NULL, MXML_DESCEND_FIRST)) == NULL) + error(); + + name = mxmlGetOpaque(node); +#endif + + /* Locate the data node */ + if ((data = mxmlFindElement(top, top, "data", NULL, NULL, MXML_DESCEND_FIRST)) == NULL) + error("Failed to find data in '%s'",inname); + + /* Get the number of patches */ + if ((attr = mxmlElementGetAttr(data, "frames")) == NULL) + error("Failed to find data attribute 'frames' in '%s'", inname); + + npat = atoi(attr); + + if (npat <= 0) + error("Illegal number of patches %d in '%s",inname); + + a1logd(g_log, DEB, "npat = %d\n",npat); + + if ((patches = calloc(npat, sizeof(patch))) == NULL) + error("malloc failed"); + + /* Read all the patches */ + node = mxmlFindElement(data, data, "patch", NULL, NULL, MXML_DESCEND_FIRST); + for (i = 0; node != NULL && i < npat;) { + int j; + mxml_node_t *stim, *res, *xyz, *val; + char *rgb_key[3] = { "red", "green", "blue" }; + char *xyz_key[3] = { "X", "Y", "Z" }; + + if (mxmlGetType(node) != MXML_ELEMENT) { + a1logd(g_log, DEB, "skipping non element node type %d\n",mxmlGetType(node)); + goto next; + } + a1logd(g_log, DEB, "read node '%s'\n",node->value.element.name); + + if ((attr = mxmlElementGetAttr(node, "frame")) == NULL) { + a1logd(g_log, DEB, "read_cxf: skipping node without frame\n"); + goto next; /* Skip this one */ + } + patches[i].pno = atoi(attr); + + a1logd(g_log, DEB, "got patch %d no %d\n",i,patches[i].pno); + + /* Read the RGB stimulus */ + if ((stim = mxmlFindElement(node, node, "stimuli", NULL, NULL, MXML_DESCEND_FIRST)) + == NULL) { + a1logd(g_log, DEB, "Can't find 'stimuli' in patch %d - skipping\n",patches[i].pno); + goto next; + } + + for (j = 0; j < 3; j++) { + if ((val = mxmlFindElement(stim, stim, rgb_key[j], NULL, NULL, MXML_DESCEND_FIRST)) + == NULL) { + a1logd(g_log, DEB, "failed to find RGB component %s\n",rgb_key[j]); + goto next; + } + patches[i].dev[j] = mxmlGetReal(val); + a1logd(g_log, DEB, "got RGB component %s value %f\n",rgb_key[j],patches[i].dev[j]); + } + + /* Read the XYZ results */ + if ((res = mxmlFindElement(node, node, "results", NULL, NULL, MXML_DESCEND_FIRST)) + == NULL) { + a1logd(g_log, DEB, "Can't find 'results' in patch %d - skipping\n",patches[i].pno); + goto next; + } + + if ((xyz = mxmlFindElement(res, res, "XYZ", NULL, NULL, MXML_DESCEND_FIRST)) + == NULL) { + a1logd(g_log, DEB, "Can't find 'XYZ' in patch %d - skipping\n",patches[i].pno); + goto next; + } + + for (j = 0; j < 3; j++) { + if ((val = mxmlFindElement(xyz, xyz, xyz_key[j], NULL, NULL, MXML_DESCEND_FIRST)) + == NULL) { + a1logd(g_log, DEB, "failed to find XYZ component %s\n",xyz_key[j]); + goto next; + } + patches[i].XYZ[j] = mxmlGetReal(val); + a1logd(g_log, DEB, "got XYZ component %s value %f\n",xyz_key[j],patches[i].XYZ[j]); + } + i++; + + /* Add patch to output CGATS */ + + next:; /* Next color */ + node = mxmlGetNextSibling(node); + } + + mxmlDelete(tree); + + + /* Setup output cgats file */ + ocg = new_cgats(); /* Create a CGATS structure */ + ocg->add_other(ocg, "CTI3"); /* our special type is Calibration Target Information 3 */ + ocg->add_table(ocg, tt_other, 0); /* Start the first table */ + + ocg->add_kword(ocg, 0, "DESCRIPTOR", "Argyll Calibration Target chart information 3",NULL); + ocg->add_kword(ocg, 0, "ORIGINATOR", "Argyll target", NULL); + atm[strlen(atm)-1] = '\000'; /* Remove \n from end */ + ocg->add_kword(ocg, 0, "CREATED",atm, NULL); + ocg->add_kword(ocg, 0, "DEVICE_CLASS","DISPLAY", NULL); /* What sort of device this is */ + + /* Note what instrument the chart was read with */ + /* Assume this - could try reading from file INSTRUMENTATION "SpectroScan" ?? */ + ocg->add_kword(ocg, 0, "TARGET_INSTRUMENT", inst_name(instSpectrolino) , NULL); + + /* Don't make any assumptions about normalisation (this is default anyway) */ + ocg->add_kword(ocg, 0, "NORMALIZED_TO_Y_100","NO", NULL); + + /* Fields we want */ + ocg->add_field(ocg, 0, "SAMPLE_ID", nqcs_t); + + if (ndchan == 3) { + ocg->add_field(ocg, 0, "RGB_R", r_t); + ocg->add_field(ocg, 0, "RGB_G", r_t); + ocg->add_field(ocg, 0, "RGB_B", r_t); + if (islab) + ocg->add_kword(ocg, 0, "COLOR_REP","RGB_LAB", NULL); + else + ocg->add_kword(ocg, 0, "COLOR_REP","RGB_XYZ", NULL); + } + + if (islab) { + ocg->add_field(ocg, 0, "LAB_L", r_t); + ocg->add_field(ocg, 0, "LAB_A", r_t); + ocg->add_field(ocg, 0, "LAB_B", r_t); + } else { + ocg->add_field(ocg, 0, "XYZ_X", r_t); + ocg->add_field(ocg, 0, "XYZ_Y", r_t); + ocg->add_field(ocg, 0, "XYZ_Z", r_t); + } + + /* LS uses 0.0 .. 1.0 */ + dev_scale = 100.0/1.0; + + /* Write out the patch info to the output CGATS file */ + if ((setel = (cgats_set_elem *)malloc( + sizeof(cgats_set_elem) * ocg->t[0].nfields)) == NULL) + error("Malloc failed!"); + + /* Write out the patch info to the output CGATS file */ + for (i = 0; i < npat; i++) { + char id[100]; + int k = 0; + + /* SAMPLE ID */ + sprintf(id, "%d", patches[i].pno); + setel[k++].c = id; + + if (ndchan == 3) { + setel[k++].d = dev_scale * patches[i].dev[0]; + setel[k++].d = dev_scale * patches[i].dev[1]; + setel[k++].d = dev_scale * patches[i].dev[2]; + } + + setel[k++].d = patches[i].XYZ[0]; + setel[k++].d = patches[i].XYZ[1]; + setel[k++].d = patches[i].XYZ[2]; + + ocg->add_setarr(ocg, 0, setel); + } + + free(setel); + + if (ocg->write_name(ocg, outname)) + error("Write error : %s",ocg->err); + + /* Clean up */ + ocg->del(ocg); + + return 0; +} + + + diff --git a/profile/mppcheck.c b/profile/mppcheck.c index 2efe878..0fcfbb7 100644 --- a/profile/mppcheck.c +++ b/profile/mppcheck.c @@ -33,6 +33,7 @@ #include "xicc.h" #include "prof.h" #include "sort.h" +#include "ui.h" void usage(void) { diff --git a/profile/mppprof.c b/profile/mppprof.c index 0c3593f..74d3a71 100644 --- a/profile/mppprof.c +++ b/profile/mppprof.c @@ -62,7 +62,8 @@ #include "numlib.h" #include "xicc.h" #include "prof.h" -#include "../h/sort.h" +#include "sort.h" +#include "ui.h" void usage(void) { diff --git a/profile/printcal.c b/profile/printcal.c index f9107eb..38ceb9b 100644 --- a/profile/printcal.c +++ b/profile/printcal.c @@ -51,6 +51,7 @@ #include "rspl.h" #include "xicc.h" #include "plot.h" +#include "ui.h" #define RSPLFLAGS (0 /* | RSPL_2PASSSMTH | RSPL_EXTRAFIT2 */) @@ -1366,7 +1367,22 @@ int main(int argc, char *argv[]) { NULL); /* iwidth */ - if (verb > 1) { + /* Compute & show fit quality */ + if (verb > 0) { + double avgde = 0.0, maxde = 0.0; + for (i = 0; i < n_pvals[j]; i++) { + co tp; /* Test point */ + double de; + tp.p[0] = pvals[j][i].dev; + raw[j]->interp(raw[j], &tp); + de = icmLabDE(pvals[j][i].Lab, tp.v); + + avgde += de; + if (de > maxde) + maxde = de; + } + avgde /= (double)n_pvals[j]; + printf("Chan %d raw fit avg DE %f, max %f\n",j,avgde,maxde); } free(dpoints); diff --git a/profile/prof.h b/profile/prof.h index 6013d99..098c03f 100644 --- a/profile/prof.h +++ b/profile/prof.h @@ -50,6 +50,7 @@ void make_output_icc( int verify, /* nz to print verification */ int clipprims, /* Clip white, black and primaries */ double wpscale, /* >= 0.0 for media white point scale factor */ +// double *bpo, /* != NULL for XYZ black point override */ icxInk *ink, /* Ink limit/black generation setup */ char *in_name, /* input .ti3 file name */ char *file_name, /* output icc name */ diff --git a/profile/profcheck.c b/profile/profcheck.c index 1895713..32cddad 100644 --- a/profile/profcheck.c +++ b/profile/profcheck.c @@ -27,6 +27,8 @@ #undef DEBUG +#undef HACK /* Print per patch XYZ differences */ + #define IMP_MONO /* Turn on development code */ #define verbo stdout @@ -42,6 +44,9 @@ #include "xicc.h" #include "insttypes.h" #include "sort.h" +#include "plot.h" +#include "vrml.h" +#include "ui.h" void usage(void) { @@ -51,10 +56,13 @@ usage(void) { fprintf(stderr," -v [level] Verbosity level (default 1), 2 to print each DE\n"); fprintf(stderr," -c Show CIE94 delta E values\n"); fprintf(stderr," -k Show CIEDE2000 delta E values\n"); - fprintf(stderr," -w create VRML visualisation (iccprofile.wrl)\n"); - fprintf(stderr," -x Use VRML axes\n"); - fprintf(stderr," -m Make VRML lines a minimum of 0.5\n"); + fprintf(stderr," -w create %s visualisation (iccprofile%s)\n",vrml_format(),vrml_ext()); + fprintf(stderr," -x Use %s axes\n",vrml_format()); + fprintf(stderr," -m Make %s lines a minimum of 0.5\n",vrml_format()); fprintf(stderr," -e Color vectors acording to delta E\n"); + fprintf(stderr," -h Plot a histogram of delta E's\n"); + fprintf(stderr," -s Sort output by delta E\n"); + fprintf(stderr," -P N.NN Create a pruned .ti3 with points less or equal to N.NN delta E\n"); fprintf(stderr," -d devval1,deval2,devvalN\n"); fprintf(stderr," Specify a device value to sort against\n"); fprintf(stderr," -p Sort device value by PCS (Lab) target\n"); @@ -70,12 +78,7 @@ usage(void) { exit(1); } -FILE *start_vrml(char *name, int doaxes); -void start_line_set(FILE *wrl); -void add_vertex(FILE *wrl, double pp[3]); -void make_lines(FILE *wrl, int ppset); -void make_de_lines(FILE *wrl); -void end_vrml(FILE *wrl); +static void DE2RGB(double *out, double in); /* Patch value type */ typedef struct { @@ -83,10 +86,21 @@ typedef struct { char slo[50]; /* sample location, "" if not known */ double p[MAX_CHAN]; /* Device value */ double v[3]; /* CIE value */ - double dp; /* Delta from target value */ - double dv; /* Delta from CIE value */ + + double pv[3]; /* Profile CIE value */ + double de; /* Delta E to profile CIE value */ + + double dp; /* Delta p[] from target device value */ + double dv; /* Delta E from CIE value */ } pval; +/* Histogram bin type */ +typedef struct { + int count; /* Raw count */ + double val; /* Normalized value */ + double min, max; /* Bin range */ +} hbin; + int main(int argc, char *argv[]) { int fa,nfa; /* current argument we're looking at */ @@ -104,8 +118,8 @@ int main(int argc, char *argv[]) icRenderingIntent intent = icAbsoluteColorimetric; icc *rd_icco; icmLuBase *luo; - char out_name[MAXNAMEL+1], *xl; /* VRML name */ - FILE *wrl = NULL; + char out_name[MAXNAMEL+1], *xl; /* VRML/X3D name */ + vrml *wrl = NULL; int fwacomp = 0; /* FWA compensation */ int isdisp = 0; /* nz if this is a display device, 0 if output */ @@ -117,12 +131,18 @@ int main(int argc, char *argv[]) xspect cust_illum; /* Custom illumination spectrum */ icxObserverType observ = icxOT_CIE_1931_2; + int sortbyde = 0; /* Sort by delta E */ + int ddevv = 0; /* Do device value sort */ double devval[MAX_CHAN]; /* device value to sort on */ - int sortbypcs = 0; /* Sort by PCS */ + int sortbypcs = 0; /* Sort by PCS error to device target */ + + int dohisto = 0; /* Plot histogram of delta E's */ + double prune = 0.0; /* If > 0.0, created a pruned .ti3 file */ int npat; /* Number of patches */ pval *tpat; /* Patch input values */ + pval **stpat; /* Pointers to internal sorted tpat[] */ int i, j, rv = 0; icColorSpaceSignature devspace = 0; /* The device colorspace */ int isAdditive = 0; /* 0 if subtractive, 1 if additive colorspace */ @@ -168,7 +188,7 @@ int main(int argc, char *argv[]) } } - /* VRML */ + /* VRML/X3D */ else if (argv[fa][1] == 'w') dovrml = 1; @@ -194,6 +214,23 @@ int main(int argc, char *argv[]) cie2k = 1; } + /* Plot histogram */ + else if (argv[fa][1] == 'h') + dohisto = 1; + + /* Sort by delta E */ + else if (argv[fa][1] == 's') + sortbyde = 1; + + /* Create a pruned .ti3 */ + else if (argv[fa][1] == 'P') { + fa = nfa; + if (na == NULL) usage(); + prune = atof(na); + if (prune <= 0.0) + usage(); + } + /* Device sort value */ else if (argv[fa][1] == 'd') { char *tp, buf[200]; @@ -354,7 +391,7 @@ int main(int argc, char *argv[]) strncpy(out_name,iccname,MAXNAMEL-4); out_name[MAXNAMEL-4] = '\000'; if ((xl = strrchr(out_name, '.')) == NULL) /* Figure where extention is */ xl = out_name + strlen(out_name); - strcpy(xl,".wrl"); + xl[0] = '\000'; /* Remove extension */ if (fwacomp && spec == 0) error ("FWA compensation only works when viewer and/or illuminant selected"); @@ -504,6 +541,12 @@ int main(int argc, char *argv[]) if ((tpat = (pval *)malloc(sizeof(pval) * npat)) == NULL) error("Malloc failed - tpat[]"); + if ((stpat = (pval **)malloc(sizeof(pval *) * npat)) == NULL) + error("Malloc failed - stpat[]"); + + for (i = 0; i < npat; i++) + stpat[i] = &tpat[i]; + /* Read in the CGATs fields */ { int sidx; /* Sample ID index */ @@ -840,11 +883,212 @@ int main(int argc, char *argv[]) } } - icg->del(icg); /* Clean up */ } /* End of reading in CGATs file */ /* - - - - - - - - - - */ - /* Check the forward profile accuracy against the data points */ + /* Compute the delta E of each point against the profile value */ + + /* Open up the file for reading */ + if ((rd_fp = new_icmFileStd_name(iccname,"r")) == NULL) + error("Write: Can't open file '%s'",iccname); + + if ((rd_icco = new_icc()) == NULL) + error("Read: Creation of ICC object failed"); + + /* Read the header and tag list */ + if ((rv = rd_icco->read(rd_icco,rd_fp,0)) != 0) + error("Read: %d, %s",rv,rd_icco->err); + + /* Get the Fwd table, absolute with Lab override */ + if ((luo = rd_icco->get_luobj(rd_icco, icmFwd, intent, + icSigLabData, icmLuOrdNorm)) == NULL) { + error("%d, %s",rd_icco->errc, rd_icco->err); + } + + for (i = 0; i < npat; i++) { + + /* Lookup the patch value in the profile */ + if (luo->lookup(luo, tpat[i].pv, tpat[i].p) > 1) + error("%d, %s",rd_icco->errc,rd_icco->err); + + if (cie2k) + tpat[i].de = icmCIE2K(tpat[i].v, tpat[i].pv); + else if (cie94) + tpat[i].de = icmCIE94(tpat[i].v, tpat[i].pv); + else + tpat[i].de = icmLabDE(tpat[i].v, tpat[i].pv); + } + + /* - - - - - - - - - - */ + /* Sort by delta E */ + if (sortbyde) { + /* Sort the dE's */ +#define HEAP_COMPARE(A,B) (A.de > B.de) + HEAPSORT(pval, tpat, npat); +#undef HEAP_COMPARE + } + + /* - - - - - - - - - - */ + /* Plot a dE histogram */ + if (dohisto) { + double demax = -1e6, demin = 1e6; + int maxbins = 50; /* Maximum bins */ + int minbins = 20; /* Target minimum bins (depends on distribution) */ + int mincount = 10; /* Minimum number of points in a bin */ + double mbwidth; + int nbins = 0; + hbin *bins = NULL; + double tval; + double *x, *y; + + /* Figure out the range of dE's */ + for (i = 0; i < npat; i++) { + double de = tpat[i].de; + + if (de > demax) + demax = de; + if (de < demin) + demin = de; + } + + if (demax < 1e-6) + error("histogram: dE range is too small to plot"); + + /* Bin width that gives maxbins */ + mbwidth = demax / maxbins; + + /* Reduce mincount if needed to get minbins */ + if (npat/minbins < mincount) + mincount = npat/minbins; + + if ((bins = (hbin *)calloc(maxbins, sizeof(hbin))) == NULL) + error("malloc of histogram bins failed"); + + /* Sort the dE's */ +#define HEAP_COMPARE(A,B) (A->de < B->de) + HEAPSORT(pval *, stpat, npat); +#undef HEAP_COMPARE + + /* Create bins and add points */ + bins[0].min = 0.0; + for (nbins = i = 0; i < npat && nbins < maxbins; i++) { + double de = stpat[i]->de; + + /* Move on to next bin ? */ + if (bins[nbins].count >= mincount + && (de - bins[nbins].min) >= mbwidth) { + if (i > 0) + bins[nbins].max = 0.5 * (de + stpat[i-1]->de); + else + bins[nbins].max = de; + nbins++; + bins[nbins].min = bins[nbins-1].max; + } + bins[nbins].count++; + bins[nbins].max = de; + } + if (bins[nbins].count != 0) + nbins++; + + /* Compute value */ + tval = 0.0; + for (i = 0; i < nbins; i++) { + bins[i].val = bins[i].count/(bins[i].max - bins[i].min); + tval += bins[i].val; + } + + tval /= 100.0; /* Make it % */ + for (i = 0; i < nbins; i++) { + bins[i].val /= tval; + if (verb) fprintf(verbo,"Bin %d, %f - %f, % 2.4f%%, count %d\n", + i,bins[i].min,bins[i].max,bins[i].val,bins[i].count); + } + + /* Plot it */ + if ((x = (double *)calloc(nbins+1, sizeof(double))) == NULL) + error("malloc of histogram x array"); + if ((y = (double *)calloc(nbins+1, sizeof(double))) == NULL) + error("malloc of histogram y array"); + + for (i = 0; i < nbins; i++) { + x[i] = 0.5 * (bins[i].min + bins[i].max); + y[i] = bins[i].val; + } + x[i] = demax; + y[i] = 0.0; + do_plot(x, y, NULL, NULL, nbins+1); + + free(y); + free(x); + free(bins); + } + + /* - - - - - - - - - - */ + /* Create a pruned .ti3 file */ + if (prune > 0.0) { + char *cp, outname[MAXNAMEL+31]; + cgats *ocg; + cgats_set_elem *setel; /* Array of set value elements */ + + strcpy(outname, ti3name); + if ((cp = strrchr(outname, '.')) == NULL) + cp = outname + strlen(outname); + sprintf(cp, "_p%.2f.ti3",prune); + + if (verb) fprintf(verbo,"Created pruned file '%s'\n",outname); + + /* Create the output files */ + if ((ocg = new_cgats()) == NULL) + error("Failed to create cgats object"); + + /* Duplicate the type of the file */ + if (icg->t[0].tt == cgats_X) { + ocg->add_other(ocg, icg->cgats_type); + ocg->add_table(ocg, tt_other, 0); + } else if (icg->t[0].tt == tt_other) { + ocg->add_other(ocg, icg->others[icg->t[0].oi]); + ocg->add_table(ocg, tt_other, 0); + } else { + ocg->add_table(ocg, icg->t[0].tt, 0); + } + + /* Duplicate all the keywords */ + for (i = 0; i < icg->t[0].nkwords; i++) { + ocg->add_kword(ocg, 0, icg->t[0].ksym[i], icg->t[0].kdata[i], NULL); + } + + /* Duplicate all of the fields */ + for (i = 0; i < icg->t[0].nfields; i++) { + ocg->add_field(ocg, 0, icg->t[0].fsym[i], icg->t[0].ftype[i]); + } + + if ((setel = (cgats_set_elem *)malloc( + sizeof(cgats_set_elem) * icg->t[0].nfields)) == NULL) + error("Malloc failed!"); + + /* Copy them approproately */ + for (i = 0; i < icg->t[0].nsets; i++) { + + if (tpat[i].de <= prune) { + icg->get_setarr(icg, 0, i, setel); + ocg->add_setarr(ocg, 0, setel); + } + } + + if (verb) { + double acc; + + acc = (double)ocg->t[0].nsets/(double)icg->t[0].nsets * 100.0; + fprintf(verbo,"%.2f%% accepted, %.3f%% rejected\n",acc, 100.0-acc); + } + + /* Write out the file */ + if (ocg->write_name(ocg, outname)) + error("CGATS file '%s' write error : %s",outname,ocg->err); + } + + /* - - - - - - - - - - */ + /* Display various results */ { double merr = 0.0; /* Max */ double aerr = 0.0; /* Avg */ @@ -853,58 +1097,57 @@ int main(int argc, char *argv[]) int inn, outn; /* Chanells for input and output spaces */ if (dovrml) { - wrl = start_vrml(out_name, doaxes); - start_line_set(wrl); - } - - /* Open up the file for reading */ - if ((rd_fp = new_icmFileStd_name(iccname,"r")) == NULL) - error("Write: Can't open file '%s'",iccname); - - if ((rd_icco = new_icc()) == NULL) - error("Read: Creation of ICC object failed"); - - /* Read the header and tag list */ - if ((rv = rd_icco->read(rd_icco,rd_fp,0)) != 0) - error("Read: %d, %s",rv,rd_icco->err); - - /* Get the Fwd table, absolute with Lab override */ - if ((luo = rd_icco->get_luobj(rd_icco, icmFwd, intent, - icSigLabData, icmLuOrdNorm)) == NULL) { - error("%d, %s",rd_icco->errc, rd_icco->err); + wrl = new_vrml(out_name, doaxes, vrml_lab); + wrl->start_line_set(wrl, 0); } /* Get details of conversion (Arguments may be NULL if info not needed) */ luo->spaces(luo, NULL, &inn, NULL, &outn, NULL, NULL, NULL, NULL, NULL); for (i = 0; i < npat; i++) { - double out[3]; - double mxd; + double de, *out; - /* Lookup the patch value in the profile */ - if (luo->lookup(luo, out, tpat[i].p) > 1) - error("%d, %s",rd_icco->errc,rd_icco->err); + de = tpat[i].de; + out = tpat[i].pv; if (verb > 1) { +#ifdef HACK // Print XYZ +#pragma message("!!!!!!!!!!!!!!!!!! profile/profcheck.c HACK enabled !!!!!!!!!!!!!!!") + double outxyz[3], vxyz[3]; + icmLab2XYZ(&icmD50, outxyz, out); + icmLab2XYZ(&icmD50, vxyz, tpat[i].v); + + printf("[%f] %s%s%s: %s -> %f %f %f should be %f %f %f\n", + de, + tpat[i].sid, + tpat[i].slo[0] != '\000' ? " @ " : "", + tpat[i].slo, + icmPdv(devchan, tpat[i].p), + outxyz[0],outxyz[1],outxyz[2], + vxyz[0],vxyz[1],vxyz[2]); +#else printf("[%f] %s%s%s: %s -> %f %f %f should be %f %f %f\n", - cie2k ? icmCIE2K(tpat[i].v, out) : - cie94 ? icmCIE94(tpat[i].v, out) : icmLabDE(tpat[i].v, out), + de, tpat[i].sid, tpat[i].slo[0] != '\000' ? " @ " : "", tpat[i].slo, icmPdv(devchan, tpat[i].p), out[0],out[1],out[2], tpat[i].v[0],tpat[i].v[1],tpat[i].v[2]); +#endif } if (dovrml) { - if (dominl && icmLabDE(tpat[i].v, out) < 0.5) { + int ix[2]; + double p1[3], p2[3]; + + /* Add the vertexes */ + if (dominl && de < 0.5) { /* Make a minimum length */ double cent[3], vec[3], vlen; - double p1[3], p2[3]; /* Compute center */ icmAdd3(cent, tpat[i].v, out); icmScale3(cent, cent, 0.5); - if ((vlen = icmLabDE(tpat[i].v, out)) < 1e-6) { + if ((vlen = de) < 1e-6) { vec[0] = 0.25; vec[1] = 0.0; vec[2] = 0.0; } else { icmSub3(vec, tpat[i].v, out); @@ -912,36 +1155,36 @@ int main(int argc, char *argv[]) } icmSub3(p1, cent, vec); icmAdd3(p2, cent, vec); - add_vertex(wrl, p1); - add_vertex(wrl, p2); } else { - add_vertex(wrl, tpat[i].v); - add_vertex(wrl, out); + icmCpy3(p1, tpat[i].v); + icmCpy3(p2, out); } - } + ix[0] = wrl->add_vertex(wrl, 0, p1); + ix[1] = wrl->add_vertex(wrl, 0, p2); - /* Check the result */ - if (cie2k) - mxd = icmCIE2K(tpat[i].v, out); - else if (cie94) - mxd = icmCIE94(tpat[i].v, out); - else - mxd = icmLabDE(tpat[i].v, out); + /* Add the line */ + if (dodecol) { /* Lines with color determined by length */ + double rgb[3]; + DE2RGB(rgb, icmNorm33(p1, p2)); + wrl->add_col_line(wrl, 0, ix, rgb); - aerr += mxd; - rerr += mxd * mxd; + } else { /* Natural color */ + wrl->add_line(wrl, 0, ix); + } + } + + /* Stats */ + aerr += de; + rerr += de * de; nsamps++; - if (mxd > merr) - merr = mxd; + if (de > merr) + merr = de; } if (dovrml) { - if (dodecol) - make_de_lines(wrl); - else - make_lines(wrl, 2); - end_vrml(wrl); + wrl->make_lines_vc(wrl, 0, 0.0); + wrl->del(wrl); } printf("Profile check complete, errors%s: max. = %f, avg. = %f, RMS = %f\n", cie2k ? "(CIEDE2000)" : cie94 ? " (CIE94)" : "", merr, aerr/nsamps, sqrt(rerr/nsamps)); @@ -975,13 +1218,13 @@ int main(int argc, char *argv[]) if (sortbypcs) { /* Sort by pcs delta */ -#define HEAP_COMPARE(A,B) (A.dv < B.dv) - HEAPSORT(pval, tpat, npat); +#define HEAP_COMPARE(A,B) (A->dv < B->dv) + HEAPSORT(pval *, stpat, npat); #undef HEAP_COMPARE } else { /* Sort by device delta */ -#define HEAP_COMPARE(A,B) (A.dp < B.dp) - HEAPSORT(pval, tpat, npat); +#define HEAP_COMPARE(A,B) (A->dp < B->dp) + HEAPSORT(pval *, stpat, npat); #undef HEAP_COMPARE } @@ -1000,18 +1243,18 @@ int main(int argc, char *argv[]) for (i = 0; i < npat; i++) { if (devspace == icSigCmykData) { printf("%s: %f %f %f %f [%f] -> %f %f %f [%f]\n", - tpat[i].sid, - tpat[i].p[0],tpat[i].p[1],tpat[i].p[2],tpat[i].p[3], - tpat[i].dp, - tpat[i].v[0],tpat[i].v[1],tpat[i].v[2], - tpat[i].dv); + stpat[i]->sid, + stpat[i]->p[0],stpat[i]->p[1],stpat[i]->p[2],stpat[i]->p[3], + stpat[i]->dp, + stpat[i]->v[0],stpat[i]->v[1],stpat[i]->v[2], + stpat[i]->dv); } else { /* Assume RGB/CMY */ printf("%s: %f %f %f [%f] -> %f %f %f [%f]\n", - tpat[i].sid, - tpat[i].p[0],tpat[i].p[1],tpat[i].p[2], - tpat[i].dp, - tpat[i].v[0],tpat[i].v[1],tpat[i].v[2], - tpat[i].dv); + stpat[i]->sid, + stpat[i]->p[0],stpat[i]->p[1],stpat[i]->p[2], + stpat[i]->dp, + stpat[i]->v[0],stpat[i]->v[1],stpat[i]->v[2], + stpat[i]->dv); } } } @@ -1024,292 +1267,13 @@ int main(int argc, char *argv[]) rd_fp->del(rd_fp); } + icg->del(icg); /* Clean up */ + return 0; } /* ------------------------------------------------ */ -/* Some simple functions to do basix VRML work */ -/* !!! Should change to plot/vrml lib !!! */ - -#define GAMUT_LCENT 50.0 -static int npoints = 0; -static int paloc = 0; -static struct { double pp[3]; } *pary; - -static void Lab2RGB(double *out, double *in); -static void DE2RGB(double *out, double in); - -FILE *start_vrml(char *name, int doaxes) { - FILE *wrl; - - /* Define the axis boxes */ - struct { - double x, y, z; /* Box center */ - double wx, wy, wz; /* Box size */ - double r, g, b; /* Box color */ - } axes[5] = { - { 0, 0, 50-GAMUT_LCENT, 2, 2, 100, .7, .7, .7 }, /* L axis */ - { 50, 0, 0-GAMUT_LCENT, 100, 2, 2, 1, 0, 0 }, /* +a (red) axis */ - { 0, -50, 0-GAMUT_LCENT, 2, 100, 2, 0, 0, 1 }, /* -b (blue) axis */ - { -50, 0, 0-GAMUT_LCENT, 100, 2, 2, 0, 1, 0 }, /* -a (green) axis */ - { 0, 50, 0-GAMUT_LCENT, 2, 100, 2, 1, 1, 0 }, /* +b (yellow) axis */ - }; - - /* Define the labels */ - struct { - double x, y, z; - double size; - char *string; - double r, g, b; - } labels[6] = { - { -2, 2, -GAMUT_LCENT + 100 + 10, 10, "+L*", .7, .7, .7 }, /* Top of L axis */ - { -2, 2, -GAMUT_LCENT - 10, 10, "0", .7, .7, .7 }, /* Bottom of L axis */ - { 100 + 5, -3, 0-GAMUT_LCENT, 10, "+a*", 1, 0, 0 }, /* +a (red) axis */ - { -5, -100 - 10, 0-GAMUT_LCENT, 10, "-b*", 0, 0, 1 }, /* -b (blue) axis */ - { -100 - 15, -3, 0-GAMUT_LCENT, 10, "-a*", 0, 0, 1 }, /* -a (green) axis */ - { -5, 100 + 5, 0-GAMUT_LCENT, 10, "+b*", 1, 1, 0 }, /* +b (yellow) axis */ - }; - - if ((wrl = fopen(name,"w")) == NULL) - error("Error opening VRML file '%s'\n",name); - - npoints = 0; - - fprintf(wrl,"#VRML V2.0 utf8\n"); - fprintf(wrl,"\n"); - fprintf(wrl,"# Created by the Argyll CMS\n"); - fprintf(wrl,"Transform {\n"); - fprintf(wrl,"children [\n"); - fprintf(wrl," NavigationInfo {\n"); - fprintf(wrl," type \"EXAMINE\" # It's an object we examine\n"); - fprintf(wrl," } # We'll add our own light\n"); - fprintf(wrl,"\n"); - fprintf(wrl," DirectionalLight {\n"); - fprintf(wrl," direction 0 0 -1 # Light illuminating the scene\n"); - fprintf(wrl," direction 0 -1 0 # Light illuminating the scene\n"); - fprintf(wrl," }\n"); - fprintf(wrl,"\n"); - fprintf(wrl," Viewpoint {\n"); - fprintf(wrl," position 0 0 340 # Position we view from\n"); - fprintf(wrl," }\n"); - fprintf(wrl,"\n"); - if (doaxes != 0) { - int n; - fprintf(wrl," # Lab axes as boxes:\n"); - for (n = 0; n < 5; n++) { - fprintf(wrl," Transform { translation %f %f %f\n", axes[n].x, axes[n].y, axes[n].z); - fprintf(wrl," children [\n"); - fprintf(wrl," Shape{\n"); - fprintf(wrl," geometry Box { size %f %f %f }\n", - axes[n].wx, axes[n].wy, axes[n].wz); - fprintf(wrl," appearance Appearance { material Material "); - fprintf(wrl,"{ diffuseColor %f %f %f} }\n", axes[n].r, axes[n].g, axes[n].b); - fprintf(wrl," }\n"); - fprintf(wrl," ]\n"); - fprintf(wrl," }\n"); - } - fprintf(wrl," # Axes identification:\n"); - for (n = 0; n < 6; n++) { - fprintf(wrl," Transform { translation %f %f %f\n", labels[n].x, labels[n].y, labels[n].z); - fprintf(wrl," children [\n"); - fprintf(wrl," Shape{\n"); - fprintf(wrl," geometry Text { string [\"%s\"]\n",labels[n].string); - fprintf(wrl," fontStyle FontStyle { family \"SANS\" style \"BOLD\" size %f }\n", - labels[n].size); - fprintf(wrl," }\n"); - fprintf(wrl," appearance Appearance { material Material "); - fprintf(wrl,"{ diffuseColor %f %f %f} }\n", labels[n].r, labels[n].g, labels[n].b); - fprintf(wrl," }\n"); - fprintf(wrl," ]\n"); - fprintf(wrl," }\n"); - } - fprintf(wrl,"\n"); - } - - return wrl; -} - -void -start_line_set(FILE *wrl) { - - fprintf(wrl,"\n"); - fprintf(wrl,"Shape {\n"); - fprintf(wrl," geometry IndexedLineSet { \n"); - fprintf(wrl," coord Coordinate { \n"); - fprintf(wrl," point [\n"); -} - -void add_vertex(FILE *wrl, double pp[3]) { - - fprintf(wrl,"%f %f %f,\n",pp[1], pp[2], pp[0]-GAMUT_LCENT); - - if (paloc < (npoints+1)) { - paloc = (paloc + 10) * 2; - if (pary == NULL) - pary = malloc(paloc * 3 * sizeof(double)); - else - pary = realloc(pary, paloc * 3 * sizeof(double)); - - if (pary == NULL) - error ("Malloc failed"); - } - pary[npoints].pp[0] = pp[0]; - pary[npoints].pp[1] = pp[1]; - pary[npoints].pp[2] = pp[2]; - npoints++; -} - - -void make_lines(FILE *wrl, int ppset) { - int i, j; - - fprintf(wrl," ]\n"); - fprintf(wrl," }\n"); - fprintf(wrl," coordIndex [\n"); - - for (i = 0; i < npoints;) { - for (j = 0; j < ppset; j++, i++) { - fprintf(wrl,"%d, ", i); - } - fprintf(wrl,"-1,\n"); - } - fprintf(wrl," ]\n"); - - /* Color */ - fprintf(wrl," colorPerVertex TRUE\n"); - fprintf(wrl," color Color {\n"); - fprintf(wrl," color [ # RGB colors of each vertex\n"); - - for (i = 0; i < npoints; i++) { - double rgb[3], Lab[3]; - Lab[0] = pary[i].pp[0]; - Lab[1] = pary[i].pp[1]; - Lab[2] = pary[i].pp[2]; - Lab2RGB(rgb, Lab); - fprintf(wrl," %f %f %f,\n", rgb[0], rgb[1], rgb[2]); - } - fprintf(wrl," ] \n"); - fprintf(wrl," }\n"); - /* End color */ - - fprintf(wrl," }\n"); - fprintf(wrl,"} # end shape\n"); -} - -/* Assume 2 ppset, and make line color prop to length */ -void make_de_lines(FILE *wrl) { - int i, j; - - fprintf(wrl," ]\n"); - fprintf(wrl," }\n"); - fprintf(wrl," coordIndex [\n"); - - for (i = 0; i < npoints;) { - for (j = 0; j < 2; j++, i++) { - fprintf(wrl,"%d, ", i); - } - fprintf(wrl,"-1,\n"); - } - fprintf(wrl," ]\n"); - - /* Color */ - fprintf(wrl," colorPerVertex TRUE\n"); - fprintf(wrl," color Color {\n"); - fprintf(wrl," color [ # RGB colors of each vertex\n"); - - for (i = 0; i < npoints; i++) { - double rgb[3], ss; - for (ss = 0.0, j = 0; j < 3; j++) { - double tt = (pary[i & ~1].pp[j] - pary[i | 1].pp[j]); - ss += tt * tt; - } - ss = sqrt(ss); - DE2RGB(rgb, ss); - fprintf(wrl," %f %f %f,\n", rgb[0], rgb[1], rgb[2]); - } - fprintf(wrl," ] \n"); - fprintf(wrl," }\n"); - /* End color */ - - fprintf(wrl," }\n"); - fprintf(wrl,"} # end shape\n"); -} - -void end_vrml(FILE *wrl) { - - fprintf(wrl,"\n"); - fprintf(wrl," ] # end of children for world\n"); - fprintf(wrl,"}\n"); - - if (fclose(wrl) != 0) - error("Error closing VRML file\n"); -} - - -/* Convert a gamut Lab value to an RGB value for display purposes */ -static void -Lab2RGB(double *out, double *in) { - double L = in[0], a = in[1], b = in[2]; - double x,y,z,fx,fy,fz; - double R, G, B; - - /* Scale so that black is visible */ - L = L * (100 - 40.0)/100.0 + 40.0; - - /* First convert to XYZ using D50 white point */ - if (L > 8.0) { - fy = (L + 16.0)/116.0; - y = pow(fy,3.0); - } else { - y = L/903.2963058; - fy = 7.787036979 * y + 16.0/116.0; - } - - fx = a/500.0 + fy; - if (fx > 24.0/116.0) - x = pow(fx,3.0); - else - x = (fx - 16.0/116.0)/7.787036979; - - fz = fy - b/200.0; - if (fz > 24.0/116.0) - z = pow(fz,3.0); - else - z = (fz - 16.0/116.0)/7.787036979; - - x *= 0.9642; /* Multiply by white point, D50 */ - y *= 1.0; - z *= 0.8249; - - /* Now convert to sRGB values */ - R = x * 3.2410 + y * -1.5374 + z * -0.4986; - G = x * -0.9692 + y * 1.8760 + z * 0.0416; - B = x * 0.0556 + y * -0.2040 + z * 1.0570; - - if (R < 0.0) - R = 0.0; - else if (R > 1.0) - R = 1.0; - - if (G < 0.0) - G = 0.0; - else if (G > 1.0) - G = 1.0; - - if (B < 0.0) - B = 0.0; - else if (B > 1.0) - B = 1.0; - - R = pow(R, 1.0/2.2); - G = pow(G, 1.0/2.2); - B = pow(B, 1.0/2.2); - - out[0] = R; - out[1] = G; - out[2] = B; -} /* Convert a delta E value into a signal color: */ static void diff --git a/profile/profin.c b/profile/profin.c index c703c42..98cad65 100644 --- a/profile/profin.c +++ b/profile/profin.c @@ -678,15 +678,15 @@ make_input_icc( if ((ri = icg->find_field(icg, 0, "RGB_R")) < 0) error ("Input file doesn't contain field RGB_R"); if (icg->t[0].ftype[ri] != r_t) - error ("Field CMYK_C is wrong type - corrupted file ?"); + error ("Field RGB_R is wrong type - corrupted file ?"); if ((gi = icg->find_field(icg, 0, "RGB_G")) < 0) error ("Input file doesn't contain field RGB_G"); if (icg->t[0].ftype[gi] != r_t) - error ("Field CMYK_M is wrong type - corrupted file ?"); + error ("Field RGB_G is wrong type - corrupted file ?"); if ((bi = icg->find_field(icg, 0, "RGB_B")) < 0) error ("Input file doesn't contain field RGB_B"); if (icg->t[0].ftype[bi] != r_t) - error ("Field CMYK_Y is wrong type - corrupted file ?"); + error ("Field RGB_B is wrong type - corrupted file ?"); if (spec == 0) { /* Using instrument tristimulous value */ @@ -838,7 +838,9 @@ make_input_icc( wr_xicc, icmFwd, icmDefaultIntent, icmLuOrdNorm, flags, /* Flags */ - npat, npat, tpat, NULL, 0.0, wpscale, smooth, avgdev, 1.0, + npat, npat, tpat, NULL, 0.0, wpscale, +// NULL, /* bpo */ + smooth, avgdev, 1.0, NULL, NULL, NULL, iquality)) == NULL) error("%d, %s",wr_xicc->errc, wr_xicc->err); @@ -890,7 +892,7 @@ make_input_icc( /* Create gamma/matrix model to extrapolate with. */ /* (Use ofset & gain, gamma curve as 0th order with 1 harmonic, */ /* and smooth it.) */ - if ((mm = new_MatrixModel(verb, nmpat, mpat, wantLab, + if ((mm = new_MatrixModel(wr_icco, verb, nmpat, mpat, wantLab, /* quality */ -1, /* isLinear */ ptype == prof_matonly, /* isGamma */ 0, /* isShTRC */ 0, /* shape0gam */ 1, /* clipbw */ 0, /* clipprims */ 0, @@ -1123,7 +1125,9 @@ make_input_icc( ICX_2PASSSMTH | #endif flags, /* Flags */ - npat + nxpat, npat, tpat, NULL, 0.0, wpscale, smooth, avgdev, 1.0, + npat + nxpat, npat, tpat, NULL, 0.0, wpscale, +// NULL, /* bpo */ + smooth, avgdev, 1.0, NULL, NULL, NULL, iquality)) == NULL) error ("%d, %s",wr_xicc->errc, wr_xicc->err); diff --git a/profile/profout.c b/profile/profout.c index 8c6fa0d..790ffa4 100644 --- a/profile/profout.c +++ b/profile/profout.c @@ -66,6 +66,7 @@ #undef IMP_MONO /* [Undef] Turn on development code */ #define EMPH_DISP_BLACKPOINT /* [Define] Increase weight near diplay black point */ +#define IGNORE_DISP_ZEROS /* [Define] Ignore points with zero value if not at dev. zero */ #define NO_B2A_PCS_CURVES /* [Define] PCS curves seem to make B2A less accurate. Why ? */ #define USE_CAM_CLIP_OPT /* [Define] Clip out of gamut in CAM space rather than PCS */ #define USE_LEASTSQUARES_APROX /* [Define] Use least squares fitting approximation in B2A */ @@ -126,7 +127,7 @@ looking up the profile in absolute mode. For a Matrix profile, in the case of the white point this is - because we're not using the ICC 16 bit quantized value to + because we may not be using the ICC 16 bit quantized value to create the relative transform matrix, and in the case of the black point, it can never be a perfect match because the black point returned by a profile lookup will be the quantized black @@ -644,6 +645,7 @@ make_output_icc( int verify, /* nz to print verification */ int clipprims, /* Clip white, black and primaries */ double wpscale, /* >= 0.0 for media white point scale factor */ +// double *bpo, /* != NULL for XYZ black point override */ icxInk *oink, /* Ink limit/black generation setup (NULL if n/a) */ char *in_name, /* input .ti3 file name */ char *file_name, /* output icc name */ @@ -671,8 +673,8 @@ make_output_icc( profxinf *xpi /* Optional Profile creation extra data */ ) { int isdisp; /* nz if this is a display device, 0 if output */ - double dispLuminance = 0.0; /* Display luminance. 0 if not known */ - int isdnormed = 0; /* Has display data been normalised to 100 ? */ + double dispLuminance = 0.0; /* Display luminance. 0.0 if not known */ + int isdnormed = 0; /* Has display data been normalised to white Y = 100 ? */ int allintents; /* nz if all intents should possibly be created */ icmFile *wr_fp; icc *wr_icco; @@ -745,6 +747,8 @@ make_output_icc( } /* See if the CIE data has been normalised to Y = 100 */ + /* If so, it's assumed to be by LUMINANCE_XYZ_CDM2 */ + /* By default assume not. */ if ((ti = icg->find_kword(icg, 0, "NORMALIZED_TO_Y_100")) < 0 || strcmp(icg->t[0].kdata[ti],"NO") == 0) { isdnormed = 0; @@ -1020,15 +1024,7 @@ make_output_icc( if (xpi != NULL && xpi->creator != 0L) wh->creator = xpi->creator; -#ifdef NT - wh->platform = icSigMicrosoft; -#endif -#ifdef __APPLE__ - wh->platform = icSigMacintosh; -#endif -#if defined(UNIX) && !defined(__APPLE__) - wh->platform = icmSig_nix; -#endif + /* Default platform is OK */ if (xpi != NULL && xpi->transparency) wh->attributes.l |= icTransparency; @@ -1656,15 +1652,34 @@ make_output_icc( tpat[i].v[0] = *((double *)icg->t[0].fdata[i][Xi]); tpat[i].v[1] = *((double *)icg->t[0].fdata[i][Yi]); tpat[i].v[2] = *((double *)icg->t[0].fdata[i][Zi]); - if (!isLab && (!isdisp || isdnormed != 0)) { - tpat[i].v[0] /= 100.0; /* Normalise XYZ to range 0.0 - 1.0 */ - tpat[i].v[1] /= 100.0; - tpat[i].v[2] /= 100.0; - } - if (!isLab && wantLab) { /* Convert test patch result XYZ to PCS (D50 Lab) */ - icmXYZ2Lab(&icmD50, tpat[i].v, tpat[i].v); - } else if (isLab && !wantLab) { - icmLab2XYZ(&icmD50, tpat[i].v, tpat[i].v); + /* For display, convert to measurement XYZ and re-normalise later */ + if (isdisp) { + if (isLab) { + icmLab2XYZ(&icmD50, tpat[i].v, tpat[i].v); + isLab = 0; + } else if (isdnormed) { + tpat[i].v[0] /= 100.0; /* Normalise XYZ to range 0.0 - 1.0 */ + tpat[i].v[1] /= 100.0; + tpat[i].v[2] /= 100.0; + } + if (isdnormed && dispLuminance > 0.0) { + tpat[i].v[0] *= dispLuminance; + tpat[i].v[1] *= dispLuminance; + tpat[i].v[2] *= dispLuminance; + } /* else Hmm. */ + + /* Convert to normalised 0.0 - 1.0 range in target PCS */ + } else { + if (!isLab) { + tpat[i].v[0] /= 100.0; /* Normalise XYZ to range 0.0 - 1.0 */ + tpat[i].v[1] /= 100.0; + tpat[i].v[2] /= 100.0; + } + if (!isLab && wantLab) { /* Convert test patch result XYZ to PCS (D50 Lab) */ + icmXYZ2Lab(&icmD50, tpat[i].v, tpat[i].v); + } else if (isLab && !wantLab) { + icmLab2XYZ(&icmD50, tpat[i].v, tpat[i].v); + } } } @@ -1684,10 +1699,14 @@ make_output_icc( if ((ii = icg->find_kword(icg, 0, "SPECTRAL_END_NM")) < 0) error ("Input file doesn't contain keyword SPECTRAL_END_NM"); sp.spec_wl_long = atof(icg->t[0].kdata[ii]); - if (!isdisp || isdnormed != 0) - sp.norm = 100.0; - else + if (isdisp) { /* convert to measurement values - re-norm later */ sp.norm = 1.0; + if (isdnormed) + sp.norm *= 100.0; + if (isdnormed && dispLuminance > 0.0) + sp.norm /= dispLuminance; + } else + sp.norm = 100.0; /* Convert to 0.0 - 1.0 ref/trans range */ /* Find the fields for spectral values */ for (j = 0; j < sp.spec_n; j++) { @@ -1820,7 +1839,6 @@ make_output_icc( } for (i = 0; i < npat; i++) { - tpat[i].w = 1.0; tpat[i].p[0] = *((double *)icg->t[0].fdata[i][ci]) / 100.0; tpat[i].p[1] = *((double *)icg->t[0].fdata[i][mi]) / 100.0; @@ -1841,59 +1859,45 @@ make_output_icc( /* Convert it to CIE space */ sp2cie->convert(sp2cie, tpat[i].v, &sp); - } sp2cie->del(sp2cie); /* Done with this */ - } - isLab = wantLab; /* We now have what we want */ - - /* Normalize display values to Y = 1.0 if needed */ - /* (re-norm spec derived, since observer may be different) */ - if (isdisp && (isdnormed == 0 || spec != 0)) { + /* Normalize display values to Y = 1.0 */ + if (isdisp) { double scale = -1e6; - if (wantLab) { - double bxyz[3]; + if (isLab) /* assert */ + error("Internal - display values must be XYZ for normalisation"); - /* Locate max Y */ - for (i = 0; i < npat; i++) { - icmLab2XYZ(&icmD50, bxyz, tpat[i].v); - if (bxyz[1] > scale) - scale = bxyz[1]; - } - - scale = 1.0/scale; - - /* Scale max Y to 1.0 */ - for (i = 0; i < npat; i++) { - icmLab2XYZ(&icmD50, tpat[i].v, tpat[i].v); - tpat[i].v[0] *= scale; - tpat[i].v[1] *= scale; - tpat[i].v[2] *= scale; - icmXYZ2Lab(&icmD50, tpat[i].v, tpat[i].v); - } - } else { + /* Locate max Y */ + for (i = 0; i < npat; i++) { + if (tpat[i].v[1] > scale) + scale = tpat[i].v[1]; + } + + scale = 1.0/scale; - /* Locate max Y */ - for (i = 0; i < npat; i++) { - if (tpat[i].v[1] > scale) - scale = tpat[i].v[1]; - } - - scale = 1.0/scale; + for (i = 0; i < npat; i++) { + tpat[i].v[0] *= scale; + tpat[i].v[1] *= scale; + tpat[i].v[2] *= scale; - for (i = 0; i < npat; i++) { - tpat[i].v[0] *= scale; - tpat[i].v[1] *= scale; - tpat[i].v[2] *= scale; - } + if (wantLab) + icmXYZ2Lab(&icmD50, tpat[i].v, tpat[i].v); } + + /* Change Black Point Override XYZ from reading to normalised */ +// if (bpo != NULL) { +// bpo[0] *= scale; +// bpo[1] *= scale; +// bpo[2] *= scale; +// } } - } /* End of reading in CGATs file */ + isLab = wantLab; /* We now have what we want */ + } /* End of reading in CGATs file */ #ifdef EMPH_DISP_BLACKPOINT /* Add extra weighting to sample points near black for additive display. */ @@ -1903,20 +1907,20 @@ make_output_icc( /* of the possible "scaled" viewing mode of additive display */ /* usage ? What about print and scan ?? */ if (isdisp && (imask == ICX_W || imask == ICX_RGB)) { - double minL = 1e6;; + double minL = 1e6; /* Locate the lowest L* value */ for (i = 0; i < npat; i++) { - if (wantLab) { - if (tpat[i].v[0] < minL) - minL = tpat[i].v[0]; - } else { - double lab[2]; + double lab[3]; + + if (wantLab) + lab[0] = tpat[i].v[0]; + else icmXYZ2Lab(&icmD50, lab, tpat[i].v); - if (lab[0] < minL) - minL = lab[0]; - } + if (lab[0] < minL) + minL = lab[0]; } +//printf("~1 final minL = %f\n",minL); /* Compute weighting factor */ /* (Hard to guess what numbers to put in here.. */ @@ -1934,11 +1938,52 @@ make_output_icc( continue; L = 1.0 + 19.0 * pow(1.0 - L, 3.0); tpat[i].w *= L; -//printf("~1 pat %d %f %f %f weight %f\n", i,tpat[i].p[0], tpat[i].p[1], tpat[i].p[2], tpat[i].w); +//printf("~1 pat %d: %f %f %f weight %f\n", i,tpat[i].p[0], tpat[i].p[1], tpat[i].p[2], tpat[i].w); } } #endif /* EMPH_DISP_BLACKPOINT */ +#ifdef IGNORE_DISP_ZEROS + /* If a display has a very good black, and the instrument is not sensitive */ + /* enough to properly measur the near black values and returns 0.0, */ + /* then the resulting profile will tend to incorrectly boost the */ + /* dark shadows. A heuristic to counteract this problem is to */ + /* ignore any readings that have any value <= 0.0 except */ + /* those for device black. */ + + if (isdisp && (imask == ICX_W || imask == ICX_RGB)) { + int noomit = 0; + + for (i = 0; i < npat; i++) { + double xyz[3], L; + if (wantLab) + icmLab2XYZ(&icmD50, xyz, tpat[i].v); + else + icmCpy3(xyz, tpat[i].v); + + /* Don't ignore device zero point */ + if (imask == ICX_W) { + if (tpat[i].p[0] <= 0.0) + continue; + } else { + if (tpat[i].p[0] <= 0.0 + && tpat[i].p[1] <= 0.0 + && tpat[i].p[2] <= 0.0) + continue; + } +//printf("~1 pat %d: XYZ %f %f %f\n", i, xyz[0], xyz[1], xyz[2]); + /* Ignore any XYZ that is zero */ + if (xyz[0] <= 0.0 || xyz[1] <= 0.0 || xyz[2] <= 0.0) { + tpat[i].w = 0.0; + noomit++; +//printf("~1 ignored\n"); + } + } + if (verb) + fprintf(verbo,"Omitted %d zero measurements\n",noomit); + } +#endif /* IGNORE_DISP_ZEROS */ + if (isLut) { xicc *wr_xicc; /* extention object */ icxLuBase *AtoB; /* AtoB ixcLu */ @@ -1981,7 +2026,9 @@ make_output_icc( ICX_2PASSSMTH | #endif flags, - npat, npat, tpat, NULL, dispLuminance, wpscale, smooth, avgdev, demph, + npat, npat, tpat, NULL, dispLuminance, wpscale, +// bpo, + smooth, avgdev, demph, NULL, oink, cal, iquality)) == NULL) error("%d, %s",wr_xicc->errc, wr_xicc->err); @@ -2187,6 +2234,9 @@ make_output_icc( if (absname[i] == absname[j]) { cx.abs_intent[j] = cx.abs_intent[i]; cx.abs_luo[j] = cx.abs_luo[i]; + abs_xicc[j] = abs_xicc[i]; + abs_icc[j] = abs_icc[i]; + abs_fp[j] = abs_fp[i]; if (verb) printf("Applying %s abstract profile '%s' to %s table\n", i == 0 ? "first" : i == 1 ? "second" : "third", @@ -2490,7 +2540,7 @@ make_output_icc( optcomb tcomb = oc_imo; /* Create all by default */ - if ((xf = new_xfit()) == NULL) { + if ((xf = new_xfit(icco)) == NULL) { error("profout: Creation of xfit object failed"); } @@ -2727,15 +2777,17 @@ make_output_icc( /* Free up abstract transform */ for (i = 0; i < cx.ntables; i++) { if (cx.abs_luo[i] != NULL) { - for (j = cx.ntables-1; j >= i; j--) { /* Free all duplicates */ - if (cx.abs_luo[j] == cx.abs_luo[i]) { - cx.abs_luo[j]->del(cx.abs_luo[j]); - abs_xicc[j]->del(abs_xicc[j]); - abs_icc[j]->del(abs_icc[j]); - abs_fp[j]->del(abs_fp[j]); + /* Free this and all associated resources */ + cx.abs_luo[i]->del(cx.abs_luo[i]); + abs_xicc[i]->del(abs_xicc[i]); + abs_icc[i]->del(abs_icc[i]); + abs_fp[i]->del(abs_fp[i]); + /* Mark all duplicates as being free'd too */ + for (j = i+1; j < cx.ntables; j++) { + if (cx.abs_luo[j] == cx.abs_luo[i]) cx.abs_luo[j] = NULL; - } } + cx.abs_luo[i] = NULL; } } @@ -2899,7 +2951,9 @@ make_output_icc( wr_xicc, icmFwd, isdisp ? icmDefaultIntent : icRelativeColorimetric, icmLuOrdRev, flags, /* Compute white & black */ - npat, npat, tpat, NULL, dispLuminance, wpscale, smooth, avgdev, demph, + npat, npat, tpat, NULL, dispLuminance, wpscale, +// bpo, + smooth, avgdev, demph, NULL, oink, cal, iquality)) == NULL) error("%d, %s",wr_xicc->errc, wr_xicc->err); diff --git a/profile/splitti3.c b/profile/splitti3.c index 0e170c1..a48c6fa 100644 --- a/profile/splitti3.c +++ b/profile/splitti3.c @@ -50,7 +50,7 @@ void usage(void) { fprintf(stderr,"Split a .ti3 into two, Version %s\n",ARGYLL_VERSION_STR); fprintf(stderr,"Author: Graeme W. Gill, licensed under the AGPL Version 3\n"); - fprintf(stderr,"usage: splitcgats [-options] input.ti3 output1.ti3 output2.ti3\n"); + fprintf(stderr,"usage: splitti3 [-options] input.ti3 output1.ti3 output2.ti3\n"); fprintf(stderr," -v Verbose - print each patch value\n"); fprintf(stderr," -n no Put no sets in first file, and balance in second file.\n"); fprintf(stderr," -p percent Put percent%% sets in first file, and balance in second file. (def. 50%%)\n"); diff --git a/profile/txt2ti3.c b/profile/txt2ti3.c index 62807f3..c1d9ed0 100644 --- a/profile/txt2ti3.c +++ b/profile/txt2ti3.c @@ -43,6 +43,7 @@ #include "xspect.h" #include "insttypes.h" #include "numlib.h" +#include "ui.h" void usage(char *mes) { @@ -200,7 +201,7 @@ int main(int argc, char *argv[]) cmy->add_other(cmy, "ECI2002"); /* Gretag/Logo Target file */ cmy->add_other(cmy, ""); /* Wildcard */ if (cmy->read_name(cmy, devname)) - error ("Read: Can't read dev file '%s'. Unknown format or corrupted file ? (%s)",devname,cmy->err); + error ("Read: Can't read dev file '%s'. Unknown format, missing or corrupted file ? (%s)",devname,cmy->err); if (cmy->ntables != 1) warning("Input file '%s' doesn't contain exactly one table",devname); @@ -291,7 +292,7 @@ int main(int argc, char *argv[]) ncie->add_other(ncie, "ECI2002"); /* Gretag/Logo Target file */ ncie->add_other(ncie, ""); /* Wildcard */ if (ncie->read_name(ncie, ciename)) - error ("Read: Can't read cie file '%s'. Unknown format or corrupted file ?",ciename); + error ("Read: Can't read cie file '%s'. Unknown format, missing or corrupted file ?",ciename); if (ncie->ntables != 1) warning("Input file '%s' doesn't contain exactly one table",ciename); @@ -365,7 +366,7 @@ int main(int argc, char *argv[]) spec->add_other(spec, "ECI2002"); /* Gretag/Logo Target file */ spec->add_other(spec, ""); /* Wildcard */ if (spec->read_name(spec, specname)) - error ("Read: Can't read spec file '%s'. Unknown format or corrupted file ?",specname); + error ("Read: Can't read spec file '%s'. Unknown format, missing or corrupted file ?",specname); if (spec->ntables != 1) warning("Input file '%s' doesn't contain exactly one table",specname); diff --git a/ref/CMP_Digital_Target-3.cht b/ref/CMP_Digital_Target-3.cht deleted file mode 100644 index eb95ed8..0000000 --- a/ref/CMP_Digital_Target-3.cht +++ /dev/null @@ -1,1210 +0,0 @@ - -BOXES 571 - F _ _ 100 200 3100 200 3100 2100 100 2100 - D ALL ALL _ _ 3200 200 0 0 0 0 - X A Z 1 19 100 100 100 200 100 100 - X 2A 2D 1 19 100 100 2700 200 100 100 - -BOX_SHRINK 12 - -REF_ROTATION 0.0 - -XLIST 31 - 100 1 1 - 200 1 1 - 300 1 1 - 400 1 1 - 500 1 1 - 600 1 1 - 700 1 1 - 800 1 1 - 900 1 1 - 1000 1 1 - 1100 1 1 - 1200 1 1 - 1300 1 1 - 1400 1 1 - 1500 1 1 - 1600 1 1 - 1700 1 1 - 1800 1 1 - 1900 1 1 - 2000 1 1 - 2100 1 1 - 2200 1 1 - 2300 1 1 - 2400 1 1 - 2500 1 1 - 2600 1 1 - 2700 1 1 - 2800 1 1 - 2900 1 1 - 3000 1 1 - 3100 1 1 - -YLIST 21 - 200 1 1 - 300 1 1 - 400 1 1 - 500 1 1 - 600 1 1 - 700 1 1 - 800 1 1 - 900 1 1 - 1000 1 1 - 1100 1 1 - 1200 1 1 - 1300 1 1 - 1400 1 1 - 1500 1 1 - 1500 1 1 - 1600 1 1 - 1700 1 1 - 1800 1 1 - 1900 1 1 - 2000 1 1 - 2100 1 1 - -EXPECTED XYZ 570 -A1 19.991 14.120 27.886 -B1 19.926 34.054 14.005 -C1 6.2319 5.6339 19.078 -D1 32.785 35.198 16.672 -E1 38.996 22.658 25.805 -F1 16.011 17.612 14.561 -G1 39.496 24.997 12.003 -H1 7.4905 6.2468 18.358 -I1 11.987 23.286 6.5928 -J1 16.591 12.444 27.331 -K1 63.038 64.179 58.403 -L1 4.3513 3.8393 2.7750 -M1 27.386 30.873 42.527 -N1 31.789 44.281 40.439 -O1 59.453 61.985 40.335 -P1 26.783 15.713 3.5833 -Q1 3.0238 3.6843 3.0876 -R1 15.462 28.885 12.776 -S1 23.694 16.421 29.352 -T1 65.900 73.381 11.377 -U1 8.3333 15.036 13.749 -V1 72.416 77.985 33.423 -W1 16.393 25.254 38.122 -X1 2.3144 2.3581 1.9303 -Y1 27.102 23.276 16.813 -Z1 2.6994 2.8850 2.2332 -2A1 10.757 20.588 4.8216 -2B1 40.765 45.919 58.857 -2C1 22.864 16.381 33.839 -2D1 28.289 21.404 20.483 -A2 10.412 10.567 30.978 -B2 24.139 14.085 3.5857 -C2 19.473 21.752 38.376 -D2 26.280 16.991 28.035 -E2 42.573 39.671 9.6556 -F2 17.113 18.705 43.690 -G2 35.850 22.548 3.8554 -H2 13.037 10.392 26.425 -I2 14.946 28.262 8.1825 -J2 3.1780 3.3914 2.3047 -K2 35.880 35.178 26.683 -L2 36.434 22.147 28.386 -M2 17.689 17.022 15.072 -N2 36.396 23.022 13.623 -O2 19.884 26.988 39.544 -P2 10.294 7.4271 3.4839 -Q2 24.415 37.008 36.288 -R2 36.078 21.682 26.898 -S2 12.232 12.247 33.412 -T2 12.486 23.920 5.4357 -U2 38.913 47.091 40.794 -V2 8.3779 6.8387 3.7119 -W2 2.3401 2.3804 1.9157 -X2 17.501 20.678 9.7225 -Y2 60.324 56.490 9.7029 -Z2 18.340 14.257 6.9452 -2A2 39.051 50.700 6.0515 -2B2 5.3134 8.7205 3.7883 -2C2 24.040 16.842 14.641 -2D2 10.963 22.720 8.1563 -A3 3.2215 2.8069 3.1344 -B3 35.703 49.122 24.276 -C3 9.6710 9.2674 28.141 -D3 39.368 42.329 16.693 -E3 9.8448 9.8037 29.501 -F3 50.040 60.997 38.371 -G3 9.8731 9.2375 28.216 -H3 31.926 43.409 5.2962 -I3 18.889 24.530 52.235 -J3 36.271 22.167 11.952 -K3 34.281 37.060 50.573 -L3 2.4511 2.5353 2.0398 -M3 34.120 37.136 30.510 -N3 28.309 16.461 3.7229 -O3 12.851 10.508 27.052 -P3 24.532 27.910 7.4170 -Q3 29.800 23.719 40.761 -R3 11.420 17.249 4.2060 -S3 30.098 17.923 3.6411 -T3 15.102 16.455 41.548 -U3 16.816 29.880 6.2892 -V3 19.054 17.886 40.635 -W3 21.160 13.146 3.6418 -X3 56.827 44.647 36.033 -Y3 7.3224 13.350 4.3645 -Z3 34.447 20.515 11.595 -2A3 10.795 11.448 32.464 -2B3 20.617 25.691 5.5795 -2C3 11.126 10.174 28.914 -2D3 68.724 66.102 56.410 -A4 19.671 15.554 33.919 -B4 17.501 19.753 3.8498 -C4 21.509 25.734 51.674 -D4 51.958 42.451 9.1213 -E4 14.112 17.806 42.697 -F4 61.487 65.884 27.427 -G4 38.420 23.239 29.457 -H4 9.8759 9.7311 29.126 -I4 75.793 79.718 46.695 -J4 10.595 15.480 24.653 -K4 32.187 21.331 32.814 -L4 13.777 17.753 16.663 -M4 27.339 16.027 3.5603 -N4 16.922 28.995 29.336 -O4 6.3066 4.7610 6.9921 -P4 22.390 29.210 15.592 -Q4 30.657 20.369 32.268 -R4 19.152 19.807 15.592 -S4 13.948 25.671 5.2122 -T4 14.991 27.898 19.745 -U4 11.486 7.6381 12.484 -V4 10.749 11.899 3.2945 -W4 77.699 80.782 67.995 -X4 24.430 21.610 7.1800 -Y4 3.2104 3.1999 4.2513 -Z4 14.450 27.763 8.5197 -2A4 21.679 16.235 32.574 -2B4 15.737 29.267 10.078 -2C4 3.9226 4.4418 7.5674 -2D4 24.022 34.375 15.022 -A5 16.920 10.945 3.6233 -B5 32.876 32.373 51.547 -C5 23.454 37.144 7.5202 -D5 24.762 25.266 23.702 -E5 29.192 16.958 3.5359 -F5 23.640 37.186 26.447 -G5 20.387 28.842 4.7028 -H5 3.3636 4.0809 2.6833 -I5 23.272 35.820 35.198 -J5 30.642 19.573 30.103 -K5 22.753 35.416 35.064 -L5 11.209 7.8786 3.5144 -M5 17.513 29.721 30.234 -N5 2.9935 2.9559 2.2837 -O5 44.139 49.035 35.423 -P5 14.200 13.959 3.6761 -Q5 59.021 56.831 48.262 -R5 6.3401 9.2262 3.4989 -S5 45.700 49.818 40.124 -T5 9.3142 14.437 4.0636 -U5 2.3535 2.3975 1.9290 -V5 27.766 28.925 20.091 -W5 3.0887 2.9300 2.3596 -X5 8.7239 16.803 5.0276 -Y5 70.161 75.882 63.247 -Z5 11.191 11.244 16.654 -2A5 62.394 68.771 47.096 -2B5 12.640 10.459 27.333 -2C5 11.160 21.761 5.5099 -2D5 77.413 80.592 53.936 -A6 37.703 22.453 27.499 -B6 14.943 18.301 44.058 -C6 44.282 30.956 7.9185 -D6 10.440 18.144 6.5076 -E6 32.892 20.486 29.274 -F6 17.819 31.263 19.184 -G6 3.7468 3.6058 6.3752 -H6 45.907 41.132 28.818 -I6 4.4472 4.1158 9.1204 -J6 20.388 31.549 44.358 -K6 2.3970 2.4515 1.9961 -L6 14.323 24.343 14.536 -M6 2.3623 2.4293 1.9541 -N6 41.190 36.767 50.714 -O6 62.357 69.847 6.3069 -P6 10.124 10.811 31.915 -Q6 67.127 65.762 49.352 -R6 39.128 23.959 27.822 -S6 10.413 15.222 6.7952 -T6 41.195 30.074 26.292 -U6 8.4099 9.5591 6.5834 -V6 43.942 26.976 32.439 -W6 33.397 44.263 15.513 -X6 56.629 45.672 50.137 -Y6 10.198 10.583 6.9283 -Z6 42.782 29.822 40.386 -2A6 61.567 65.013 61.274 -2B6 21.335 15.115 28.916 -2C6 3.2203 3.7212 2.6005 -2D6 35.799 34.854 29.422 -A7 19.123 33.078 10.667 -B7 12.915 10.831 28.225 -C7 77.518 80.587 57.622 -D7 11.348 10.154 28.703 -E7 12.442 24.254 5.6475 -F7 15.345 13.969 34.910 -G7 52.703 61.988 5.9513 -H7 9.9056 10.888 32.881 -I7 67.471 66.483 44.705 -J7 8.8426 9.6268 8.1730 -K7 61.925 56.855 24.968 -L7 9.6349 10.726 32.427 -M7 32.435 45.157 6.1480 -N7 30.427 18.146 3.6270 -O7 16.928 17.695 11.911 -P7 56.094 48.894 4.9467 -Q7 11.934 11.778 20.573 -R7 15.285 28.434 6.3346 -S7 3.5054 4.3615 2.7830 -T7 35.099 44.589 58.771 -U7 26.155 17.005 28.079 -V7 8.9086 14.924 14.071 -W7 30.611 33.536 8.6858 -X7 79.113 81.784 66.503 -Y7 10.240 10.764 31.229 -Z7 11.976 23.218 5.4228 -2A7 9.9976 9.7574 28.929 -2B7 25.572 39.297 14.262 -2C7 66.257 69.908 5.8960 -2D7 14.893 16.603 41.626 -A8 12.100 24.359 8.4071 -B8 42.436 39.900 4.7260 -C8 20.574 15.216 20.136 -D8 12.701 25.255 8.1803 -E8 18.324 13.039 26.409 -F8 16.724 30.035 13.212 -G8 3.3200 3.1831 3.0291 -H8 20.304 33.570 24.443 -I8 2.9169 2.9009 3.0168 -J8 48.038 46.099 39.891 -K8 5.2241 8.0427 3.5985 -L8 38.619 50.368 44.407 -M8 2.3428 2.3959 1.9273 -N8 3.1956 3.3116 2.6415 -O8 10.494 10.847 8.8081 -P8 22.233 23.005 18.548 -Q8 39.317 40.778 33.056 -R8 63.147 65.480 53.862 -S8 28.252 23.514 24.400 -T8 14.520 26.909 5.4756 -U8 18.057 24.054 51.817 -V8 2.3402 2.3911 1.9209 -W8 77.838 79.255 64.883 -X8 14.232 12.342 3.5677 -Y8 31.451 43.594 39.472 -Z8 3.8429 5.0881 3.0661 -2A8 27.844 41.491 21.140 -2B8 2.4921 2.5648 2.0613 -2C8 34.635 36.777 50.964 -2D8 2.3436 2.3905 1.9440 -A9 46.811 59.109 25.406 -B9 35.695 26.905 33.928 -C9 8.0578 15.313 4.8058 -D9 70.562 68.540 46.575 -E9 10.633 11.656 33.787 -F9 54.113 43.360 23.933 -G9 7.1200 11.358 10.328 -H9 31.237 20.786 32.756 -I9 14.469 27.174 19.553 -J9 11.813 8.1727 3.4750 -K9 51.613 51.265 59.093 -L9 11.232 21.889 5.3482 -M9 2.3389 2.3932 1.9205 -N9 4.6543 4.8363 3.9004 -O9 11.973 12.444 10.082 -P9 24.548 25.410 20.720 -Q9 43.270 44.842 36.215 -R9 68.113 71.034 59.864 -S9 31.468 18.903 5.4734 -T9 3.2297 3.6435 2.9170 -U9 31.779 25.042 15.321 -V9 30.098 43.673 10.856 -W9 65.360 57.273 55.175 -X9 7.8261 15.682 5.0934 -Y9 30.151 17.603 3.5424 -Z9 14.169 10.872 25.545 -2A9 49.740 51.961 35.295 -2B9 19.293 14.167 28.533 -2C9 23.305 29.469 10.465 -2D9 22.420 16.254 30.792 -A10 7.4766 14.316 6.7672 -B10 30.693 34.185 4.8132 -C10 11.568 23.235 13.773 -D10 2.4307 2.4999 2.0171 -E10 30.140 19.949 31.751 -F10 15.810 25.353 37.521 -G10 2.4272 2.4936 1.9887 -H10 12.549 25.096 11.562 -I10 2.3402 2.3788 1.9223 -J10 13.387 24.235 23.958 -K10 25.478 22.853 4.3681 -L10 5.0366 4.2550 2.8902 -M10 2.3374 2.3915 1.9194 -N10 5.8942 6.1054 4.9143 -O10 13.462 14.013 11.428 -P10 27.055 28.014 23.007 -Q10 47.406 49.169 39.386 -R10 73.974 77.043 65.729 -S10 7.8358 8.0794 7.9176 -T10 54.395 42.563 48.165 -U10 11.113 22.841 7.7084 -V10 2.9394 3.4387 2.9247 -W10 13.284 25.973 11.867 -X10 2.4768 2.5120 2.1182 -Y10 27.102 26.481 19.829 -Z10 23.978 16.698 3.6586 -2A10 24.659 30.178 27.108 -2B10 13.618 8.1445 8.4106 -2C10 24.412 26.496 22.533 -2D10 5.2897 4.2252 10.803 -A11 15.662 9.9371 16.757 -B11 6.3528 11.756 4.1276 -C11 70.247 65.054 58.834 -D11 42.904 30.283 4.3741 -E11 33.675 37.292 27.259 -F11 7.3260 5.3398 8.4321 -G11 56.748 56.026 41.441 -H11 8.1585 8.7147 3.0001 -I11 54.512 56.195 42.466 -J11 4.9736 7.2275 6.1574 -K11 50.413 50.352 29.675 -L11 11.783 8.3671 18.993 -M11 2.4004 2.4632 1.9865 -N11 7.0502 7.2979 5.9348 -O11 15.157 15.663 12.643 -P11 30.809 31.935 26.037 -Q11 51.029 52.827 42.179 -R11 78.892 82.077 69.152 -S11 9.0391 9.3614 7.5795 -T11 54.688 46.067 27.270 -U11 7.0672 5.5203 3.1542 -V11 19.018 30.251 40.808 -W11 2.6438 2.7813 2.1741 -X11 20.294 33.254 28.954 -Y11 4.7917 4.3367 10.461 -Z11 39.678 51.335 44.730 -2A11 11.397 22.075 5.4606 -2B11 43.396 54.386 47.692 -2C11 9.0264 8.0855 4.5632 -2D11 29.263 17.239 3.6542 -A12 42.435 55.238 11.960 -B12 10.244 9.5241 28.550 -C12 25.557 39.490 11.397 -D12 9.5983 9.1448 8.3283 -E12 71.285 77.444 27.463 -F12 32.592 33.399 30.058 -G12 5.1430 4.3541 13.182 -H12 18.517 32.087 22.562 -I12 6.9977 5.1440 3.8014 -J12 69.246 76.042 17.844 -K12 10.642 7.6407 17.593 -L12 21.927 35.477 19.681 -M12 2.4287 2.4921 1.9949 -N12 7.9937 8.3172 6.7360 -O12 17.120 17.761 14.285 -P12 33.242 34.486 28.221 -Q12 55.136 57.000 45.303 -R12 84.047 87.070 71.496 -S12 46.799 45.618 34.284 -T12 6.6921 6.0185 19.773 -U12 31.583 45.365 15.646 -V12 35.975 22.808 7.0470 -W12 15.632 16.004 15.333 -X12 32.188 19.569 3.7849 -Y12 9.9981 9.6287 28.171 -Z12 14.429 27.348 6.4901 -2A12 13.822 12.446 29.936 -2B12 68.261 74.431 52.067 -2C12 2.4685 2.5621 2.0287 -2D12 28.798 30.974 45.549 -A13 14.129 10.884 26.286 -B13 21.280 29.662 4.6515 -C13 32.064 17.966 13.604 -D13 9.9611 10.733 32.277 -E13 51.845 54.927 28.181 -F13 6.3441 8.5421 15.068 -G13 68.699 71.452 46.387 -H13 10.374 10.902 29.169 -I13 26.203 23.997 4.3858 -J13 25.753 36.554 54.373 -K13 5.9068 4.9157 15.287 -L13 35.348 27.270 4.1933 -M13 2.6154 2.7053 2.1626 -N13 9.3637 9.6843 7.8391 -O13 19.359 20.106 16.147 -P13 36.624 37.957 30.671 -Q13 59.859 61.861 49.702 -R13 89.957 93.025 75.604 -S13 17.613 12.665 26.369 -T13 22.969 25.114 7.7873 -U13 13.623 8.3610 7.6135 -V13 59.661 54.433 33.140 -W13 15.045 10.609 3.4373 -X13 26.676 39.190 37.659 -Y13 16.770 18.831 3.7976 -Z13 16.243 13.004 15.620 -2A13 62.079 69.145 59.254 -2B13 9.8300 11.508 34.315 -2C13 13.378 8.4024 4.1065 -2D13 11.706 16.228 24.708 -A14 27.260 17.709 28.446 -B14 10.007 11.116 33.309 -C14 55.170 63.826 56.969 -D14 22.474 12.791 7.8220 -E14 17.833 19.340 7.6068 -F14 25.508 15.387 3.5019 -G14 28.674 42.244 25.294 -H14 20.013 14.167 27.201 -I14 2.4079 2.4331 1.9867 -J14 23.527 21.066 41.374 -K14 23.203 12.509 8.0121 -L14 48.486 42.511 43.112 -M14 8.6031 15.926 4.6200 -N14 53.107 53.884 48.977 -O14 3.9836 3.7404 6.5852 -P14 35.517 35.068 43.001 -Q14 37.782 22.314 19.042 -R14 17.467 17.105 13.104 -S14 22.370 35.508 5.9931 -T14 23.886 13.985 16.868 -U14 19.591 19.252 12.172 -V14 63.345 63.812 5.6645 -W14 12.028 10.481 3.3856 -X14 42.635 43.420 39.912 -Y14 19.856 32.192 5.1431 -Z14 15.570 17.641 12.711 -2A14 29.733 19.495 31.105 -2B14 81.209 84.285 67.959 -2C14 16.972 13.897 32.504 -2D14 20.262 27.906 7.7177 -A15 24.922 14.319 17.652 -B15 20.394 32.266 39.177 -C15 28.847 42.042 6.3345 -D15 27.579 26.553 23.681 -E15 38.874 23.290 19.357 -F15 36.703 46.352 27.027 -G15 34.061 22.803 34.531 -H15 10.113 11.921 31.879 -I15 64.423 58.008 39.281 -J15 9.4542 9.1717 6.7120 -K15 48.073 52.062 16.154 -L15 22.225 20.657 33.169 -M15 32.410 43.840 8.6168 -N15 19.932 29.141 53.896 -O15 8.2354 6.1612 3.2448 -P15 21.186 33.689 34.860 -Q15 2.8839 2.9372 2.7235 -R15 16.647 10.677 18.389 -S15 35.874 22.454 3.7685 -T15 18.024 31.495 21.231 -U15 26.027 17.635 30.172 -V15 5.7623 9.6302 3.8733 -W15 53.522 58.991 41.376 -X15 23.991 17.693 34.060 -Y15 3.5595 3.8688 2.3978 -Z15 34.055 35.265 28.241 -2A15 29.379 16.826 7.3609 -2B15 9.2107 8.5579 25.691 -2C15 25.707 18.129 3.6532 -2D15 13.875 19.568 19.948 -A16 32.441 19.582 3.7464 -B16 43.738 40.362 16.554 -C16 4.9159 8.3065 7.2559 -D16 37.197 27.832 7.4910 -E16 36.691 35.876 51.695 -F16 38.836 30.036 4.3338 -G16 17.555 13.363 28.888 -H16 75.466 77.836 67.216 -I16 16.954 15.112 7.2992 -J16 47.072 52.200 10.669 -K16 55.962 60.759 50.287 -L16 10.165 9.7715 28.705 -M16 36.859 23.500 3.8297 -N16 29.735 43.076 29.229 -O16 7.3545 6.2503 2.9745 -P16 46.114 46.965 33.568 -Q16 6.2218 6.8107 2.7776 -R16 29.663 17.214 6.8286 -S16 8.0381 10.138 16.410 -T16 31.088 18.734 3.6263 -U16 18.911 32.215 23.899 -V16 26.145 16.883 27.363 -W16 33.705 20.761 3.7986 -X16 14.361 27.487 7.1744 -Y16 29.882 22.982 39.138 -Z16 2.4233 2.4412 1.9648 -2A16 42.519 39.188 21.270 -2B16 5.2349 4.4461 13.823 -2C16 32.492 19.465 7.0806 -2D16 33.454 46.863 22.481 -A17 18.355 31.722 19.048 -B17 4.8626 4.2833 10.526 -C17 39.631 36.092 16.781 -D17 3.8471 5.8319 4.8962 -E17 43.491 44.349 22.904 -F17 35.028 21.444 3.8305 -G17 23.826 20.302 40.464 -H17 44.211 56.679 16.435 -I17 6.5115 6.2807 3.6004 -J17 35.464 48.530 31.500 -K17 31.217 18.833 4.2081 -L17 6.1796 5.0138 3.0160 -M17 21.355 33.511 36.981 -N17 31.382 17.339 13.539 -O17 20.515 20.076 24.934 -P17 32.143 19.447 3.7592 -Q17 60.501 50.532 52.708 -R17 12.657 24.420 5.6873 -S17 3.4355 3.1639 2.5372 -T17 28.192 29.771 51.322 -U17 52.660 42.651 15.019 -V17 69.823 71.393 63.731 -W17 44.995 50.413 5.2421 -X17 37.401 38.967 26.702 -Y17 8.0339 5.5483 9.9052 -Z17 10.382 21.829 11.599 -2A17 34.325 21.131 7.2263 -2B17 9.1863 9.9839 3.1512 -2C17 75.534 73.388 61.922 -2D17 19.258 14.916 29.290 -A18 74.089 78.770 59.424 -B18 42.903 30.204 40.715 -C18 8.7363 10.837 6.0872 -D18 75.509 74.636 56.066 -E18 10.413 9.8011 28.727 -F18 11.836 22.861 5.4226 -G18 26.954 18.177 29.358 -H18 16.220 29.699 13.154 -I18 2.3647 2.3980 1.9090 -J18 77.786 81.283 65.463 -K18 14.363 11.898 6.7644 -L18 60.378 57.128 5.2726 -M18 30.554 20.123 31.743 -N18 24.748 27.645 20.451 -O18 44.929 31.003 12.389 -P18 11.881 10.425 27.990 -Q18 25.737 39.690 14.823 -R18 52.300 42.856 4.6545 -S18 7.2126 14.429 7.1944 -T18 77.679 78.425 65.193 -U18 47.084 32.209 22.319 -V18 6.6683 11.848 10.189 -W18 65.207 70.970 60.729 -X18 6.2806 11.330 4.1095 -Y18 60.571 56.044 16.070 -Z18 15.673 16.045 40.153 -2A18 41.178 25.901 19.845 -2B18 13.693 16.674 24.407 -2C18 74.223 78.952 41.733 -2D18 38.135 24.817 4.1395 -A19 39.239 29.094 15.479 -B19 4.7416 7.0454 3.4644 -C19 49.395 43.657 28.522 -D19 42.332 52.372 5.7052 -E19 24.242 22.424 14.026 -F19 2.4551 2.5226 2.0256 -G19 16.677 25.667 25.825 -H19 13.124 8.8453 3.5763 -I19 28.527 37.076 34.358 -J19 22.891 16.490 6.9749 -K19 22.666 35.279 35.631 -L19 5.4212 4.5484 2.9627 -M19 11.199 21.925 5.4425 -N19 22.708 12.897 3.6335 -O19 12.507 23.738 22.498 -P19 2.3442 2.3896 1.9267 -Q19 30.303 17.749 3.5777 -R19 10.104 9.7374 28.448 -S19 13.901 26.685 6.3873 -T19 2.4391 2.4780 2.0610 -U19 45.972 49.473 57.247 -V19 4.8275 8.3485 3.9886 -W19 63.154 70.855 7.5811 -X19 14.863 14.166 8.5770 -Y19 74.340 78.986 66.286 -Z19 49.996 33.344 36.894 -2A19 10.165 11.287 33.081 -2B19 62.642 69.515 6.2139 -2C19 38.429 24.741 7.3479 -2D19 12.944 12.283 32.608 - -A1 106.60 73.896 140.50 -B1 101.22 157.76 91.298 -C1 56.474 54.712 116.20 -D1 142.23 143.96 106.67 -E1 161.58 92.303 143.82 -F1 90.405 96.497 94.153 -G1 163.39 98.124 88.178 -H1 63.278 55.370 115.21 -I1 71.385 133.64 49.363 -J1 97.757 75.383 143.28 -K1 194.49 193.52 200.39 -L1 43.729 37.037 36.612 -M1 128.36 143.53 178.51 -N1 136.71 176.12 173.90 -O1 190.25 190.03 173.26 -P1 139.89 69.074 45.054 -Q1 34.433 40.188 37.667 -R1 87.362 153.04 89.833 -S1 124.79 84.048 151.84 -T1 201.42 206.76 79.283 -U1 59.875 104.70 93.370 -V1 205.39 208.60 159.63 -W1 91.572 136.12 167.03 -X1 30.336 29.306 28.957 -Y1 132.60 110.17 107.91 -Z1 32.956 33.215 31.185 -2A1 70.282 129.32 46.946 -2B1 159.00 173.65 202.91 -2C1 121.19 88.150 161.84 -2D1 136.59 101.50 125.83 -A2 75.414 80.525 150.43 -B2 128.64 63.027 42.872 -C2 101.62 116.40 166.26 -D2 129.62 78.772 146.55 -E2 164.20 144.75 82.589 -F2 96.904 110.83 179.21 -G2 157.24 84.071 46.359 -H2 84.439 70.424 140.26 -I2 81.661 147.44 58.864 -J2 35.433 35.856 32.072 -K2 150.66 144.08 140.58 -L2 158.35 93.379 154.74 -M2 100.38 93.492 99.897 -N2 158.93 93.968 95.921 -O2 102.60 137.21 171.09 -P2 74.932 50.703 44.902 -Q2 115.12 165.78 166.70 -R2 157.97 92.663 150.58 -S2 83.913 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-T15 95.611 158.57 127.45 -U15 133.03 87.140 157.87 -V15 48.894 77.368 43.484 -W15 182.54 191.20 178.40 -X15 126.00 95.308 166.74 -Y15 38.376 39.986 33.590 -Z15 148.30 148.94 147.37 -2A15 146.55 75.055 68.429 -2B15 71.706 70.645 144.63 -2C15 133.02 80.816 44.452 -2D15 82.777 113.54 117.52 -A16 147.43 75.104 45.417 -B16 162.22 145.05 108.87 -C16 43.273 69.681 61.261 -D16 154.15 106.72 65.606 -E16 149.19 148.83 193.98 -F16 157.80 111.38 47.573 -G16 100.61 79.449 149.13 -H16 206.92 207.61 211.44 -I16 97.895 82.272 66.348 -J16 172.80 178.46 82.595 -K16 183.90 191.17 190.75 -L16 75.048 76.021 151.02 -M16 159.42 88.282 47.938 -N16 133.24 176.09 150.50 -O16 59.749 48.251 40.198 -P16 171.06 168.69 161.58 -Q16 53.260 54.841 37.700 -R16 147.03 76.735 66.424 -S16 63.206 78.809 107.93 -T16 150.22 77.352 47.226 -U16 97.824 159.49 134.64 -V16 133.39 81.567 151.23 -W16 155.32 82.024 48.477 -X16 81.301 147.86 56.013 -Y16 141.53 112.75 178.08 -Z16 31.556 30.196 30.075 -2A16 166.04 149.78 129.15 -2B16 53.939 48.402 100.70 -2C16 152.96 83.435 68.500 -2D16 141.97 181.00 131.63 -A17 93.002 152.57 112.99 -B17 48.562 44.595 81.595 -C17 155.24 137.12 108.13 -D17 37.723 54.820 48.270 -E17 163.04 158.68 133.73 -F17 155.10 81.151 47.477 -G17 119.76 108.26 175.73 -H17 155.83 188.69 108.40 -I17 54.125 49.417 43.252 -J17 146.89 182.65 155.76 -K17 148.71 77.345 50.119 -L17 53.925 41.854 39.291 -M17 105.46 156.83 167.45 -N17 149.16 79.222 103.08 -O17 109.98 107.89 138.78 -P17 151.99 78.765 47.620 -Q17 195.13 169.06 200.08 -R17 73.599 136.55 49.271 -S17 37.757 33.718 34.938 -T17 132.61 142.77 197.68 -U17 181.82 145.93 103.48 -V17 204.10 203.91 210.35 -W17 175.82 179.36 52.229 -X17 155.69 156.50 143.88 -Y17 65.731 44.495 80.654 -Z17 67.930 138.21 88.916 -2A17 156.40 87.866 68.881 -2B17 68.870 68.990 41.254 -2C17 209.60 202.66 207.60 -2D17 108.97 87.062 152.98 -A18 200.70 204.40 197.90 -B18 164.93 117.44 177.68 -C18 61.227 72.827 56.013 -D18 204.51 199.19 195.95 -E18 73.692 73.322 148.06 -F18 68.313 128.24 45.392 -G18 131.14 85.288 152.52 -H18 89.609 153.68 93.128 -I18 30.179 29.676 28.922 -J18 208.65 210.69 209.48 -K18 88.863 70.346 63.498 -L18 197.92 177.16 54.602 -M18 143.55 91.470 162.00 -N18 121.99 131.52 122.44 -O18 172.04 115.00 91.328 -P18 81.187 74.923 148.64 -Q18 117.91 169.48 101.12 -R18 183.93 145.62 52.297 -S18 55.452 105.38 65.438 -T18 211.11 208.92 210.90 -U18 177.41 124.39 134.00 -V18 53.506 90.891 78.889 -W18 197.65 205.13 206.81 -X18 51.396 86.860 43.674 -Y18 193.58 175.18 113.92 -Z18 96.313 103.94 178.60 -2A18 168.53 106.08 128.73 -2B18 85.496 104.15 136.89 -2C18 208.09 210.26 179.31 -2D18 161.94 92.492 50.116 -A19 156.71 112.54 101.12 -B19 42.513 58.501 40.536 -C19 172.17 152.13 143.40 -D19 159.73 183.13 54.703 -E19 119.21 105.48 95.518 -F19 30.235 29.764 29.269 -G19 88.689 134.99 136.69 -H19 86.392 53.901 45.566 -I19 126.88 158.15 160.78 -J19 120.42 79.125 64.241 -K19 108.34 160.80 164.56 -L19 49.327 39.952 38.592 -M19 67.917 128.27 44.976 -N19 127.84 62.080 45.945 -O19 74.380 138.45 130.11 -P19 30.060 29.337 28.817 -Q19 147.97 73.539 46.480 -R19 75.153 76.608 151.15 -S19 78.339 144.41 52.936 -T19 31.312 30.556 30.767 -U19 169.32 177.98 203.35 -V19 44.471 72.376 45.634 -W19 199.02 205.39 55.979 -X19 90.125 81.954 73.039 -Y19 207.33 211.44 212.22 -Z19 182.95 126.85 175.69 -2A19 77.857 90.598 163.13 -2B19 202.16 204.23 49.052 -2C19 162.94 96.440 68.740 -2D19 83.952 84.116 160.97 - diff --git a/ref/CMP_Digital_Target-3.cie b/ref/CMP_Digital_Target-3.cie deleted file mode 100644 index 6c8ff5d..0000000 --- a/ref/CMP_Digital_Target-3.cie +++ /dev/null @@ -1,591 +0,0 @@ -CTI3 - -DESCRIPTOR "Argyll Calibration Target chart information 3" -ORIGINATOR "Argyll chartread" -CREATED "Mon Sep 7 08:33:21 2009" -KEYWORD "DEVICE_CLASS" -DEVICE_CLASS "OUTPUT" -KEYWORD "COLOR_REP" -COLOR_REP "RGB_XYZ" -KEYWORD "TARGET_INSTRUMENT" -TARGET_INSTRUMENT "GretagMacbeth i1 Pro" - -KEYWORD "SAMPLE_LOC" -NUMBER_OF_FIELDS 8 -BEGIN_DATA_FORMAT -SAMPLE_ID SAMPLE_LOC RGB_R RGB_G RGB_B XYZ_X XYZ_Y XYZ_Z -END_DATA_FORMAT - -NUMBER_OF_SETS 570 -BEGIN_DATA -1 "A1" 106.60 73.896 140.50 19.991 14.120 27.886 -2 "B1" 101.22 157.76 91.298 19.926 34.054 14.005 -3 "C1" 56.474 54.712 116.20 6.2319 5.6339 19.078 -4 "D1" 142.23 143.96 106.67 32.785 35.198 16.672 -5 "E1" 161.58 92.303 143.82 38.996 22.658 25.805 -6 "F1" 90.405 96.497 94.153 16.011 17.612 14.561 -7 "G1" 163.39 98.124 88.178 39.496 24.997 12.003 -8 "H1" 63.278 55.370 115.21 7.4905 6.2468 18.358 -9 "I1" 71.385 133.64 49.363 11.987 23.286 6.5928 -10 "J1" 97.757 75.383 143.28 16.591 12.444 27.331 -11 "K1" 194.49 193.52 200.39 63.038 64.179 58.403 -12 "L1" 43.729 37.037 36.612 4.3513 3.8393 2.7750 -13 "M1" 128.36 143.53 178.51 27.386 30.873 42.527 -14 "N1" 136.71 176.12 173.90 31.789 44.281 40.439 -15 "O1" 190.25 190.03 173.26 59.453 61.985 40.335 -16 "P1" 139.89 69.074 45.054 26.783 15.713 3.5833 -17 "Q1" 34.433 40.188 37.667 3.0238 3.6843 3.0876 -18 "R1" 87.362 153.04 89.833 15.462 28.885 12.776 -19 "S1" 124.79 84.048 151.84 23.694 16.421 29.352 -20 "T1" 201.42 206.76 79.283 65.900 73.381 11.377 -21 "U1" 59.875 104.70 93.370 8.3333 15.036 13.749 -22 "V1" 205.39 208.60 159.63 72.416 77.985 33.423 -23 "W1" 91.572 136.12 167.03 16.393 25.254 38.122 -24 "X1" 30.336 29.306 28.957 2.3144 2.3581 1.9303 -25 "Y1" 132.60 110.17 107.91 27.102 23.276 16.813 -26 "Z1" 32.956 33.215 31.185 2.6994 2.8850 2.2332 -27 "2A1" 70.282 129.32 46.946 10.757 20.588 4.8216 -28 "2B1" 159.00 173.65 202.91 40.765 45.919 58.857 -29 "2C1" 121.19 88.150 161.84 22.864 16.381 33.839 -30 "2D1" 136.59 101.50 125.83 28.289 21.404 20.483 -31 "A2" 75.414 80.525 150.43 10.412 10.567 30.978 -32 "B2" 128.64 63.027 42.872 24.139 14.085 3.5857 -33 "C2" 101.62 116.40 166.26 19.473 21.752 38.376 -34 "D2" 129.62 78.772 146.55 26.280 16.991 28.035 -35 "E2" 164.20 144.75 82.589 42.573 39.671 9.6556 -36 "F2" 96.904 110.83 179.21 17.113 18.705 43.690 -37 "G2" 157.24 84.071 46.359 35.850 22.548 3.8554 -38 "H2" 84.439 70.424 140.26 13.037 10.392 26.425 -39 "I2" 81.661 147.44 58.864 14.946 28.262 8.1825 -40 "J2" 35.433 35.856 32.072 3.1780 3.3914 2.3047 -41 "K2" 150.66 144.08 140.58 35.880 35.178 26.683 -42 "L2" 158.35 93.379 154.74 36.434 22.147 28.386 -43 "M2" 100.38 93.492 99.897 17.689 17.022 15.072 -44 "N2" 158.93 93.968 95.921 36.396 23.022 13.623 -45 "O2" 102.60 137.21 171.09 19.884 26.988 39.544 -46 "P2" 74.932 50.703 44.902 10.294 7.4271 3.4839 -47 "Q2" 115.12 165.78 166.70 24.415 37.008 36.288 -48 "R2" 157.97 92.663 150.58 36.078 21.682 26.898 -49 "S2" 83.913 88.787 161.27 12.232 12.247 33.412 -50 "T2" 72.772 133.20 48.154 12.486 23.920 5.4357 -51 "U2" 155.64 177.45 175.23 38.913 47.091 40.794 -52 "V2" 65.311 50.797 44.712 8.3779 6.8387 3.7119 -53 "W2" 30.304 29.389 28.630 2.3401 2.3804 1.9157 -54 "X2" 98.383 112.57 76.501 17.501 20.678 9.7225 -55 "Y2" 196.95 176.56 81.174 60.324 56.490 9.7029 -56 "Z2" 106.87 76.461 64.020 18.340 14.257 6.9452 -57 "2A2" 149.29 180.57 55.756 39.051 50.700 6.0515 -58 "2B2" 46.850 72.093 42.887 5.3134 8.7205 3.7883 -59 "2C2" 126.21 86.097 104.74 24.040 16.842 14.641 -60 "2D2" 68.443 138.05 59.668 10.963 22.720 8.1563 -61 "A3" 40.703 34.668 43.170 3.2215 2.8069 3.1344 -62 "B3" 140.80 177.61 130.47 35.703 49.122 24.276 -63 "C3" 71.422 72.467 144.63 9.6710 9.2674 28.141 -64 "D3" 157.83 159.05 109.87 39.368 42.329 16.693 -65 "E3" 74.511 78.412 148.91 9.8448 9.8037 29.501 -66 "F3" 172.35 192.98 167.60 50.040 60.997 38.371 -67 "G3" 72.505 72.322 146.66 9.8731 9.2375 28.216 -68 "H3" 132.85 167.63 50.020 31.926 43.409 5.2962 -69 "I3" 99.822 132.27 193.48 18.889 24.530 52.235 -70 "J3" 158.78 88.817 87.144 36.271 22.167 11.952 -71 "K3" 146.32 156.61 192.38 34.281 37.060 50.573 -72 "L3" 30.978 30.641 29.826 2.4511 2.5353 2.0398 -73 "M3" 146.27 153.30 150.57 34.120 37.136 30.510 -74 "N3" 144.16 70.919 46.534 28.309 16.461 3.7229 -75 "O3" 85.091 72.947 144.27 12.851 10.508 27.052 -76 "P3" 122.91 131.12 67.881 24.532 27.910 7.4170 -77 "Q3" 140.27 116.77 178.48 29.800 23.719 40.761 -78 "R3" 73.020 103.31 46.082 11.420 17.249 4.2060 -79 "S3" 148.58 74.828 46.145 30.098 17.923 3.6411 -80 "T3" 92.676 106.61 179.17 15.102 16.455 41.548 -81 "U3" 89.067 149.36 56.522 16.816 29.880 6.2892 -82 "V3" 104.27 103.98 177.68 19.054 17.886 40.635 -83 "W3" 122.27 64.970 44.965 21.160 13.146 3.6418 -84 "X3" 190.80 157.08 167.65 56.827 44.647 36.033 -85 "Y3" 55.033 94.759 44.077 7.3224 13.350 4.3645 -86 "Z3" 157.08 85.576 87.558 34.447 20.515 11.595 -87 "2A3" 79.250 88.578 159.52 10.795 11.448 32.464 -88 "2B3" 108.15 127.71 55.172 20.617 25.691 5.5795 -89 "2C3" 78.102 75.847 150.05 11.126 10.174 28.914 -90 "2D3" 202.83 194.20 199.16 68.724 66.102 56.410 -91 "A4" 105.09 86.729 157.14 19.671 15.554 33.919 -92 "B4" 99.696 102.26 43.923 17.501 19.753 3.8498 -93 "C4" 107.26 130.81 190.72 21.509 25.734 51.674 -94 "D4" 178.30 141.51 75.719 51.958 42.451 9.1213 -95 "E4" 86.201 111.97 176.39 14.112 17.806 42.697 -96 "F4" 192.41 193.92 143.50 61.487 65.884 27.427 -97 "G4" 161.20 95.317 155.94 38.420 23.239 29.457 -98 "H4" 74.863 77.945 149.59 9.8759 9.7311 29.126 -99 "I4" 207.61 208.23 184.16 75.793 79.718 46.695 -100 "J4" 70.931 101.90 131.71 10.595 15.480 24.653 -101 "K4" 147.01 94.545 162.80 32.187 21.331 32.814 -102 "L4" 81.586 103.83 104.84 13.777 17.753 16.663 -103 "M4" 141.06 69.848 45.247 27.339 16.027 3.5603 -104 "N4" 90.494 151.07 150.65 16.922 28.995 29.336 -105 "O4" 55.294 41.016 63.313 6.3066 4.7610 6.9921 -106 "P4" 111.84 140.47 103.22 22.390 29.210 15.592 -107 "Q4" 144.45 93.249 162.31 30.657 20.369 32.268 -108 "R4" 105.31 104.82 101.31 19.152 19.807 15.592 -109 "S4" 79.325 137.68 48.973 13.948 25.671 5.2122 -110 "T4" 84.189 150.82 120.01 14.991 27.898 19.745 -111 "U4" 81.413 52.379 93.432 11.486 7.6381 12.484 -112 "V4" 76.459 77.531 42.048 10.749 11.899 3.2945 -113 "W4" 211.28 212.44 213.00 77.699 80.782 67.995 -114 "X4" 125.79 102.06 67.469 24.430 21.610 7.1800 -115 "Y4" 36.736 36.340 46.306 3.2104 3.1999 4.2513 -116 "Z4" 83.114 150.29 61.891 14.450 27.763 8.5197 -117 "2A4" 117.71 90.574 160.37 21.679 16.235 32.574 -118 "2B4" 89.463 153.87 72.494 15.737 29.267 10.078 -119 "2C4" 42.498 47.832 65.570 3.9226 4.4418 7.5674 -120 "2D4" 115.91 156.34 101.73 24.022 34.375 15.022 -121 "A5" 100.43 57.576 43.875 16.920 10.945 3.6233 -122 "B5" 139.57 140.52 191.37 32.876 32.373 51.547 -123 "C5" 106.24 157.82 63.346 23.454 37.144 7.5202 -124 "D5" 120.63 119.68 128.56 24.762 25.266 23.702 -125 "E5" 144.32 70.530 44.643 29.192 16.958 3.5359 -126 "F5" 112.12 164.88 139.23 23.640 37.186 26.447 -127 "G5" 103.37 136.87 47.413 20.387 28.842 4.7028 -128 "H5" 36.251 41.780 35.395 3.3636 4.0809 2.6833 -129 "I5" 111.24 162.80 164.26 23.272 35.820 35.198 -130 "J5" 143.56 87.562 156.55 30.642 19.573 30.103 -131 "K5" 109.54 163.06 164.19 22.753 35.416 35.064 -132 "L5" 79.627 52.133 45.354 11.209 7.8786 3.5144 -133 "M5" 92.456 152.33 153.19 17.513 29.721 30.234 -134 "N5" 34.714 33.013 32.281 2.9935 2.9559 2.2837 -135 "O5" 166.35 175.94 163.99 44.139 49.035 35.423 -136 "P5" 89.669 79.549 47.144 14.200 13.959 3.6761 -137 "Q5" 191.24 182.85 188.48 59.021 56.831 48.262 -138 "R5" 51.675 70.899 41.770 6.3401 9.2262 3.4989 -139 "S5" 170.53 177.54 173.76 45.700 49.818 40.124 -140 "T5" 63.890 93.942 45.687 9.3142 14.437 4.0636 -141 "U5" 30.168 29.299 28.940 2.3535 2.3975 1.9290 -142 "V5" 133.08 133.14 122.05 27.766 28.925 20.091 -143 "W5" 36.054 32.923 33.276 3.0887 2.9300 2.3596 -144 "X5" 61.314 111.77 45.755 8.7239 16.803 5.0276 -145 "Y5" 203.39 209.40 208.06 70.161 75.882 63.247 -146 "Z5" 76.353 77.670 109.77 11.191 11.244 16.654 -147 "2A5" 193.86 202.18 186.73 62.394 68.771 47.096 -148 "2B5" 84.630 73.965 145.61 12.640 10.459 27.333 -149 "2C5" 68.392 129.05 45.336 11.160 21.761 5.5099 -150 "2D5" 210.46 210.49 195.89 77.413 80.592 53.936 -151 "A6" 156.79 90.614 148.03 37.703 22.453 27.499 -152 "B6" 88.481 111.82 178.46 14.943 18.301 44.058 -153 "C6" 167.90 108.82 66.983 44.282 30.956 7.9185 -154 "D6" 66.578 110.85 54.360 10.440 18.144 6.5076 -155 "E6" 148.31 87.735 154.80 32.892 20.486 29.274 -156 "F6" 93.611 155.13 115.73 17.819 31.263 19.184 -157 "G6" 40.190 39.280 58.763 3.7468 3.6058 6.3752 -158 "H6" 170.89 152.59 147.19 45.907 41.132 28.818 -159 "I6" 46.469 44.545 75.326 4.4472 4.1158 9.1204 -160 "J6" 102.48 151.18 180.03 20.388 31.549 44.358 -161 "K6" 30.872 30.164 29.516 2.3970 2.4515 1.9961 -162 "L6" 83.294 137.00 98.315 14.323 24.343 14.536 -163 "M6" 30.722 30.150 29.446 2.3623 2.4293 1.9541 -164 "N6" 163.74 151.67 194.83 41.190 36.767 50.714 -165 "O6" 199.83 203.65 49.970 62.357 69.847 6.3069 -166 "P6" 77.512 86.873 159.07 10.124 10.811 31.915 -167 "Q6" 200.99 194.31 190.45 67.127 65.762 49.352 -168 "R6" 165.39 100.99 154.68 39.128 23.959 27.822 -169 "S6" 69.496 98.026 61.986 10.413 15.222 6.7952 -170 "T6" 167.68 124.93 146.98 41.195 30.074 26.292 -171 "U6" 62.706 68.483 60.211 8.4099 9.5591 6.5834 -172 "V6" 174.63 108.06 166.14 43.942 26.976 32.439 -173 "W6" 138.60 174.02 106.27 33.397 44.263 15.513 -174 "X6" 192.12 161.59 197.05 56.629 45.672 50.137 -175 "Y6" 71.207 70.503 63.173 10.198 10.583 6.9283 -176 "Z6" 171.42 121.85 182.26 42.782 29.822 40.386 -177 "2A6" 193.77 197.98 207.14 61.567 65.013 61.274 -178 "2B6" 117.80 82.965 151.94 21.335 15.115 28.916 -179 "2C6" 36.305 39.517 34.462 3.2203 3.7212 2.6005 -180 "2D6" 152.48 145.44 148.89 35.799 34.854 29.422 -181 "A7" 93.637 153.35 73.710 19.123 33.078 10.667 -182 "B7" 83.277 73.755 144.52 12.915 10.831 28.225 -183 "C7" 206.85 206.70 197.33 77.518 80.587 57.622 -184 "D7" 77.454 73.349 146.72 11.348 10.154 28.703 -185 "E7" 70.809 132.64 47.023 12.442 24.254 5.6475 -186 "F7" 91.049 88.345 163.10 15.345 13.969 34.910 -187 "G7" 177.87 190.87 53.018 52.703 61.988 5.9513 -188 "H7" 75.960 87.720 159.98 9.9056 10.888 32.881 -189 "I7" 199.48 192.77 181.55 67.471 66.483 44.705 -190 "J7" 64.713 68.090 67.610 8.8426 9.6268 8.1730 -191 "K7" 193.08 175.48 139.54 61.925 56.855 24.968 -192 "L7" 75.430 87.876 159.79 9.6349 10.726 32.427 -193 "M7" 133.24 173.17 56.742 32.435 45.157 6.1480 -194 "N7" 148.49 75.098 46.216 30.427 18.146 3.6270 -195 "O7" 97.134 97.177 86.559 16.928 17.695 11.911 -196 "P7" 191.20 160.30 54.685 56.094 48.894 4.9467 -197 "Q7" 80.068 80.251 125.32 11.934 11.778 20.573 -198 "R7" 83.368 147.19 55.358 15.285 28.434 6.3346 -199 "S7" 37.747 44.719 36.907 3.5054 4.3615 2.7830 -200 "T7" 146.52 175.26 205.50 35.099 44.589 58.771 -201 "U7" 133.97 82.941 152.98 26.155 17.005 28.079 -202 "V7" 63.182 103.22 97.125 8.9086 14.924 14.071 -203 "W7" 144.22 147.07 76.384 30.611 33.536 8.6858 -204 "X7" 212.78 213.19 211.89 79.113 81.784 66.503 -205 "Y7" 77.896 86.298 158.37 10.240 10.764 31.229 -206 "Z7" 71.313 133.52 47.389 11.976 23.218 5.4228 -207 "2A7" 75.926 78.650 151.98 9.9976 9.7574 28.929 -208 "2B7" 118.08 168.98 98.781 25.572 39.297 14.262 -209 "2C7" 207.34 198.34 43.623 66.257 69.908 5.8960 -210 "2D7" 92.639 108.26 179.66 14.893 16.603 41.626 -211 "A8" 69.904 137.36 58.325 12.100 24.359 8.4071 -212 "B8" 167.09 144.55 49.599 42.436 39.900 4.7260 -213 "C8" 111.10 78.672 121.83 20.574 15.216 20.136 -214 "D8" 74.340 141.34 56.829 12.701 25.255 8.1803 -215 "E8" 104.13 74.055 141.65 18.324 13.039 26.409 -216 "F8" 90.075 154.61 90.911 16.724 30.035 13.212 -217 "G8" 36.341 33.896 36.868 3.3200 3.1831 3.0291 -218 "H8" 101.65 159.66 134.07 20.304 33.570 24.443 -219 "I8" 34.216 33.499 37.712 2.9169 2.9009 3.0168 -220 "J8" 174.41 165.56 173.38 48.038 46.099 39.891 -221 "K8" 46.252 66.300 42.397 5.2241 8.0427 3.5985 -222 "L8" 152.69 184.12 182.69 38.619 50.368 44.407 -223 "M8" 30.240 29.863 28.939 2.3428 2.3959 1.9273 -224 "N8" 35.593 35.467 34.190 3.1956 3.3116 2.6415 -225 "O8" 71.728 71.553 70.937 10.494 10.847 8.8081 -226 "P8" 115.92 116.10 114.68 22.233 23.005 18.548 -227 "Q8" 159.85 160.38 159.13 39.317 40.778 33.056 -228 "R8" 196.60 197.21 197.12 63.147 65.480 53.862 -229 "S8" 137.57 112.53 140.33 28.252 23.514 24.400 -230 "T8" 80.940 142.13 50.952 14.520 26.909 5.4756 -231 "U8" 99.365 133.93 196.43 18.057 24.054 51.817 -232 "V8" 30.957 30.566 29.813 2.3402 2.3911 1.9209 -233 "W8" 212.09 210.69 210.55 77.838 79.255 64.883 -234 "X8" 90.920 71.799 46.751 14.232 12.342 3.5677 -235 "Y8" 137.72 177.30 175.40 31.451 43.594 39.472 -236 "Z8" 39.524 49.911 38.685 3.8429 5.0881 3.0661 -237 "2A8" 130.39 176.13 127.05 27.844 41.491 21.140 -238 "2B8" 31.904 31.437 30.690 2.4921 2.5648 2.0613 -239 "2C8" 149.77 158.18 196.00 34.635 36.777 50.964 -240 "2D8" 30.719 29.824 29.600 2.3436 2.3905 1.9440 -241 "A9" 160.64 188.72 135.75 46.811 59.109 25.406 -242 "B9" 151.09 113.48 161.82 35.695 26.905 33.928 -243 "C9" 56.378 101.12 44.028 8.0578 15.313 4.8058 -244 "D9" 200.86 192.61 183.06 70.562 68.540 46.575 -245 "E9" 77.639 89.149 161.20 10.633 11.656 33.787 -246 "F9" 183.43 148.52 132.23 54.113 43.360 23.933 -247 "G9" 53.868 83.869 77.703 7.1200 11.358 10.328 -248 "H9" 144.68 93.693 163.06 31.237 20.786 32.756 -249 "I9" 80.625 147.05 117.46 14.469 27.174 19.553 -250 "J9" 82.612 53.093 45.342 11.813 8.1727 3.4750 -251 "K9" 179.05 178.11 205.03 51.613 51.265 59.093 -252 "L9" 68.256 128.21 45.397 11.232 21.889 5.3482 -253 "M9" 30.122 29.559 28.786 2.3389 2.3932 1.9205 -254 "N9" 44.132 44.030 43.113 4.6543 4.8363 3.9004 -255 "O9" 77.603 77.496 77.212 11.973 12.444 10.082 -256 "P9" 123.38 123.35 123.35 24.548 25.410 20.720 -257 "Q9" 167.61 168.12 167.11 43.270 44.842 36.215 -258 "R9" 202.61 204.17 205.53 68.113 71.034 59.864 -259 "S9" 152.34 81.269 59.657 31.468 18.903 5.4734 -260 "T9" 36.525 39.233 37.120 3.2297 3.6435 2.9170 -261 "U9" 147.79 112.59 105.57 31.779 25.042 15.321 -262 "V9" 128.85 175.42 85.449 30.098 43.673 10.856 -263 "W9" 202.12 182.11 203.04 65.360 57.273 55.175 -264 "X9" 58.841 111.22 46.014 7.8261 15.682 5.0934 -265 "Y9" 150.27 74.574 46.780 30.151 17.603 3.5424 -266 "Z9" 91.373 72.814 142.15 14.169 10.872 25.545 -267 "2A9" 178.42 178.87 165.68 49.740 51.961 35.295 -268 "2B9" 110.21 82.066 150.83 19.293 14.167 28.533 -269 "2C9" 115.57 141.00 82.227 23.305 29.469 10.465 -270 "2D9" 120.44 87.308 156.62 22.420 16.254 30.792 -271 "A10" 54.278 98.104 59.100 7.4766 14.316 6.7672 -272 "B10" 141.49 142.92 50.130 30.693 34.185 4.8132 -273 "C10" 69.545 135.98 93.417 11.568 23.235 13.773 -274 "D10" 30.772 30.009 29.471 2.4307 2.4999 2.0171 -275 "E10" 140.52 89.479 159.03 30.140 19.949 31.751 -276 "F10" 88.149 135.62 165.23 15.810 25.353 37.521 -277 "G10" 30.508 30.075 29.389 2.4272 2.4936 1.9887 -278 "H10" 75.794 144.13 86.030 12.549 25.096 11.562 -279 "I10" 29.881 29.286 28.915 2.3402 2.3788 1.9223 -280 "J10" 78.427 139.08 135.09 13.387 24.235 23.958 -281 "K10" 127.69 103.24 52.122 25.478 22.853 4.3681 -282 "L10" 47.518 38.484 37.887 5.0366 4.2550 2.8902 -283 "M10" 30.202 29.466 28.978 2.3374 2.3915 1.9194 -284 "N10" 50.671 50.438 49.901 5.8942 6.1054 4.9143 -285 "O10" 84.087 84.218 84.130 13.462 14.013 11.428 -286 "P10" 130.92 131.27 131.19 27.055 28.014 23.007 -287 "Q10" 174.24 174.94 173.31 47.406 49.169 39.386 -288 "R10" 208.46 209.75 212.17 73.974 77.043 65.729 -289 "S10" 61.440 61.759 68.112 7.8358 8.0794 7.9176 -290 "T10" 189.59 154.63 195.61 54.395 42.563 48.165 -291 "U10" 70.065 139.76 58.155 11.113 22.841 7.7084 -292 "V10" 34.382 38.877 37.374 2.9394 3.4387 2.9247 -293 "W10" 81.185 148.91 88.683 13.284 25.973 11.867 -294 "X10" 31.337 30.706 30.647 2.4768 2.5120 2.1182 -295 "Y10" 132.10 124.54 122.36 27.102 26.481 19.829 -296 "Z10" 128.86 77.259 44.848 23.978 16.698 3.6586 -297 "2A10" 121.07 144.71 145.24 24.659 30.178 27.108 -298 "2B10" 91.404 54.498 76.524 13.618 8.1445 8.4106 -299 "2C10" 122.45 129.19 129.52 24.412 26.496 22.533 -300 "2D10" 52.091 43.712 85.349 5.2897 4.2252 10.803 -301 "A11" 95.121 56.945 109.13 15.662 9.9371 16.757 -302 "B11" 49.247 84.978 41.595 6.3528 11.756 4.1276 -303 "C11" 201.38 188.28 201.57 70.247 65.054 58.834 -304 "D11" 165.99 106.71 48.883 42.904 30.283 4.3741 -305 "E11" 142.45 151.87 140.77 33.675 37.292 27.259 -306 "F11" 59.895 43.373 70.686 7.3260 5.3398 8.4321 -307 "G11" 185.60 179.80 175.52 56.748 56.026 41.441 -308 "H11" 62.810 62.001 39.464 8.1585 8.7147 3.0001 -309 "I11" 182.38 181.99 177.01 54.512 56.195 42.466 -310 "J11" 44.613 62.579 56.523 4.9736 7.2275 6.1574 -311 "K11" 177.26 171.26 154.02 50.413 50.352 29.675 -312 "L11" 81.706 58.921 119.57 11.783 8.3671 18.993 -313 "M11" 30.648 29.769 29.464 2.4004 2.4632 1.9865 -314 "N11" 56.534 56.324 55.689 7.0502 7.2979 5.9348 -315 "O11" 89.911 89.936 88.980 15.157 15.663 12.643 -316 "P11" 140.77 141.41 140.88 30.809 31.935 26.037 -317 "Q11" 179.84 180.21 178.58 51.029 52.827 42.179 -318 "R11" 212.60 213.84 215.53 78.892 82.077 69.152 -319 "S11" 66.493 66.184 65.558 9.0391 9.3614 7.5795 -320 "T11" 187.32 160.61 146.99 54.688 46.067 27.270 -321 "U11" 59.842 44.929 41.517 7.0672 5.5203 3.1542 -322 "V11" 100.71 151.70 177.40 19.018 30.251 40.808 -323 "W11" 32.433 32.983 31.555 2.6438 2.7813 2.1741 -324 "X11" 103.41 161.56 150.03 20.294 33.254 28.954 -325 "Y11" 49.930 46.756 84.028 4.7917 4.3367 10.461 -326 "Z11" 157.24 187.57 185.20 39.678 51.335 44.730 -327 "2A11" 69.840 130.51 46.639 11.397 22.075 5.4606 -328 "2B11" 164.73 190.77 189.92 43.396 54.386 47.692 -329 "2C11" 67.660 57.565 50.639 9.0264 8.0855 4.5632 -330 "2D11" 146.88 73.255 46.894 29.263 17.239 3.6542 -331 "A12" 149.18 183.06 84.464 42.435 55.238 11.960 -332 "B12" 72.446 71.794 146.17 10.244 9.5241 28.550 -333 "C12" 111.58 163.80 82.344 25.557 39.490 11.397 -334 "D12" 67.115 62.023 67.669 9.5983 9.1448 8.3283 -335 "E12" 202.25 206.59 144.16 71.285 77.444 27.463 -336 "F12" 142.52 142.52 149.46 32.592 33.399 30.058 -337 "G12" 52.218 46.843 96.005 5.1430 4.3541 13.182 -338 "H12" 95.301 157.62 128.66 18.517 32.087 22.562 -339 "I12" 58.804 42.199 45.333 6.9977 5.1440 3.8014 -340 "J12" 201.67 207.01 112.57 69.246 76.042 17.844 -341 "K12" 76.878 56.433 113.86 10.642 7.6407 17.593 -342 "L12" 110.43 164.87 121.89 21.927 35.477 19.681 -343 "M12" 31.073 30.502 29.828 2.4287 2.4921 1.9949 -344 "N12" 60.863 60.999 60.221 7.9937 8.3172 6.7360 -345 "O12" 97.436 97.414 96.425 17.120 17.761 14.285 -346 "P12" 146.96 147.76 147.68 33.242 34.486 28.221 -347 "Q12" 186.04 186.49 184.52 55.136 57.000 45.303 -348 "R12" 217.03 217.69 217.80 84.047 87.070 71.496 -349 "S12" 173.81 166.67 164.48 46.799 45.618 34.284 -350 "T12" 61.998 59.133 126.43 6.6921 6.0185 19.773 -351 "U12" 133.08 178.53 107.01 31.583 45.365 15.646 -352 "V12" 159.59 92.307 67.569 35.975 22.808 7.0470 -353 "W12" 92.823 93.091 102.67 15.632 16.004 15.333 -354 "X12" 153.31 79.910 48.385 32.188 19.569 3.7849 -355 "Y12" 76.169 77.765 152.48 9.9981 9.6287 28.171 -356 "Z12" 80.867 145.82 55.209 14.429 27.348 6.4901 -357 "2A12" 88.726 84.091 155.13 13.822 12.446 29.936 -358 "2B12" 201.37 208.14 195.53 68.261 74.431 52.067 -359 "2C12" 32.004 31.705 30.813 2.4685 2.5621 2.0287 -360 "2D12" 135.53 145.08 187.78 28.798 30.974 45.549 -361 "A13" 86.415 69.301 138.07 14.129 10.884 26.286 -362 "B13" 104.58 136.42 46.559 21.280 29.662 4.6515 -363 "C13" 147.82 79.114 100.32 32.064 17.966 13.604 -364 "D13" 75.334 85.157 157.26 9.9611 10.733 32.277 -365 "E13" 178.81 179.96 148.24 51.845 54.927 28.181 -366 "F13" 55.482 72.327 100.16 6.3441 8.5421 15.068 -367 "G13" 200.09 199.75 184.43 68.699 71.452 46.387 -368 "H13" 76.688 84.710 151.41 10.374 10.902 29.169 -369 "I13" 129.73 107.35 52.022 26.203 23.997 4.3858 -370 "J13" 119.03 160.66 198.42 25.753 36.554 54.373 -371 "K13" 56.473 50.032 106.16 5.9068 4.9157 15.287 -372 "L13" 153.18 106.56 46.936 35.348 27.270 4.1933 -373 "M13" 32.264 31.978 31.289 2.6154 2.7053 2.1626 -374 "N13" 66.470 66.520 66.246 9.3637 9.6843 7.8391 -375 "O13" 105.28 105.86 104.76 19.359 20.106 16.147 -376 "P13" 153.75 154.63 154.12 36.624 37.957 30.671 -377 "Q13" 192.03 192.25 191.27 59.859 61.861 49.702 -378 "R13" 221.68 221.89 221.96 89.957 93.025 75.604 -379 "S13" 104.20 75.856 145.33 17.613 12.665 26.369 -380 "T13" 121.87 124.18 72.370 22.969 25.114 7.7873 -381 "U13" 91.392 55.886 72.021 13.623 8.3610 7.6135 -382 "V13" 193.01 176.53 161.70 59.661 54.433 33.140 -383 "W13" 97.047 61.496 44.638 15.045 10.609 3.4373 -384 "X13" 124.18 171.27 172.48 26.676 39.190 37.659 -385 "Y13" 100.95 103.55 45.932 16.770 18.831 3.7976 -386 "Z13" 98.719 76.722 108.03 16.243 13.004 15.620 -387 "2A13" 193.99 204.68 205.71 62.079 69.145 59.254 -388 "2B13" 77.619 94.368 167.50 9.8300 11.508 34.315 -389 "2C13" 91.512 53.191 50.701 13.378 8.4024 4.1065 -390 "2D13" 76.609 104.98 135.45 11.706 16.228 24.708 -391 "A14" 129.84 79.131 147.61 27.260 17.709 28.446 -392 "B14" 74.731 86.884 158.53 10.007 11.116 33.309 -393 "C14" 178.45 194.65 198.02 55.170 63.826 56.969 -394 "D14" 122.80 65.789 71.805 22.474 12.791 7.8220 -395 "E14" 99.529 101.15 66.691 17.833 19.340 7.6068 -396 "F14" 133.73 68.160 43.803 25.508 15.387 3.5019 -397 "G14" 130.31 174.28 137.87 28.674 42.244 25.294 -398 "H14" 110.49 77.413 145.63 20.013 14.167 27.201 -399 "I14" 30.999 29.764 29.587 2.4079 2.4331 1.9867 -400 "J14" 120.14 114.13 178.99 23.527 21.066 41.374 -401 "K14" 128.29 64.544 74.117 23.203 12.509 8.0121 -402 "L14" 176.70 157.34 183.40 48.486 42.511 43.112 -403 "M14" 59.777 105.00 45.141 8.6031 15.926 4.6200 -404 "N14" 182.00 181.11 190.30 53.107 53.884 48.977 -405 "O14" 42.651 40.749 62.042 3.9836 3.7404 6.5852 -406 "P14" 151.32 150.31 182.91 35.517 35.068 43.001 -407 "Q14" 162.51 94.932 125.82 37.782 22.314 19.042 -408 "R14" 99.745 94.301 93.467 17.467 17.105 13.104 -409 "S14" 107.25 159.78 58.090 22.370 35.508 5.9931 -410 "T14" 128.01 72.369 117.84 23.886 13.985 16.868 -411 "U14" 107.76 101.18 90.766 19.591 19.252 12.172 -412 "V14" 204.14 190.16 48.644 63.345 63.812 5.6645 -413 "W14" 82.597 65.626 44.970 12.028 10.481 3.3856 -414 "X14" 166.39 166.20 175.82 42.635 43.420 39.912 -415 "Y14" 100.69 152.17 51.384 19.856 32.192 5.1431 -416 "Z14" 91.650 100.20 90.746 15.570 17.641 12.711 -417 "2A14" 143.62 91.243 162.04 29.733 19.495 31.105 -418 "2B14" 214.71 215.34 214.31 81.209 84.285 67.959 -419 "2C14" 101.32 87.875 161.74 16.972 13.897 32.504 -420 "2D14" 105.18 138.75 68.497 20.262 27.906 7.7177 -421 "A15" 124.84 68.758 114.78 24.922 14.319 17.652 -422 "B15" 99.929 150.22 167.53 20.394 32.266 39.177 -423 "C15" 121.25 165.78 57.133 28.847 42.042 6.3345 -424 "D15" 129.49 121.04 130.58 27.579 26.553 23.681 -425 "E15" 161.27 95.254 123.97 38.874 23.290 19.357 -426 "F15" 148.20 174.03 142.22 36.703 46.352 27.027 -427 "G15" 150.41 98.923 167.42 34.061 22.803 34.531 -428 "H15" 75.180 91.615 158.04 10.113 11.921 31.879 -429 "I15" 196.22 179.25 172.32 64.423 58.008 39.281 -430 "J15" 66.558 62.105 60.696 9.4542 9.1717 6.7120 -431 "K15" 174.25 177.65 112.40 48.073 52.062 16.154 -432 "L15" 116.33 112.29 162.02 22.225 20.657 33.169 -433 "M15" 133.68 171.46 73.038 32.410 43.840 8.6168 -434 "N15" 102.47 146.49 198.15 19.932 29.141 53.896 -435 "O15" 64.715 46.574 43.032 8.2354 6.1612 3.2448 -436 "P15" 105.91 159.08 164.78 21.186 33.689 34.860 -437 "Q15" 34.379 33.754 36.003 2.8839 2.9372 2.7235 -438 "R15" 102.62 61.271 119.89 16.647 10.677 18.389 -439 "S15" 159.62 86.224 48.021 35.874 22.454 3.7685 -440 "T15" 95.611 158.57 127.45 18.024 31.495 21.231 -441 "U15" 133.03 87.140 157.87 26.027 17.635 30.172 -442 "V15" 48.894 77.368 43.484 5.7623 9.6302 3.8733 -443 "W15" 182.54 191.20 178.40 53.522 58.991 41.376 -444 "X15" 126.00 95.308 166.74 23.991 17.693 34.060 -445 "Y15" 38.376 39.986 33.590 3.5595 3.8688 2.3978 -446 "Z15" 148.30 148.94 147.37 34.055 35.265 28.241 -447 "2A15" 146.55 75.055 68.429 29.379 16.826 7.3609 -448 "2B15" 71.706 70.645 144.63 9.2107 8.5579 25.691 -449 "2C15" 133.02 80.816 44.452 25.707 18.129 3.6532 -450 "2D15" 82.777 113.54 117.52 13.875 19.568 19.948 -451 "A16" 147.43 75.104 45.417 32.441 19.582 3.7464 -452 "B16" 162.22 145.05 108.87 43.738 40.362 16.554 -453 "C16" 43.273 69.681 61.261 4.9159 8.3065 7.2559 -454 "D16" 154.15 106.72 65.606 37.197 27.832 7.4910 -455 "E16" 149.19 148.83 193.98 36.691 35.876 51.695 -456 "F16" 157.80 111.38 47.573 38.836 30.036 4.3338 -457 "G16" 100.61 79.449 149.13 17.555 13.363 28.888 -458 "H16" 206.92 207.61 211.44 75.466 77.836 67.216 -459 "I16" 97.895 82.272 66.348 16.954 15.112 7.2992 -460 "J16" 172.80 178.46 82.595 47.072 52.200 10.669 -461 "K16" 183.90 191.17 190.75 55.962 60.759 50.287 -462 "L16" 75.048 76.021 151.02 10.165 9.7715 28.705 -463 "M16" 159.42 88.282 47.938 36.859 23.500 3.8297 -464 "N16" 133.24 176.09 150.50 29.735 43.076 29.229 -465 "O16" 59.749 48.251 40.198 7.3545 6.2503 2.9745 -466 "P16" 171.06 168.69 161.58 46.114 46.965 33.568 -467 "Q16" 53.260 54.841 37.700 6.2218 6.8107 2.7776 -468 "R16" 147.03 76.735 66.424 29.663 17.214 6.8286 -469 "S16" 63.206 78.809 107.93 8.0381 10.138 16.410 -470 "T16" 150.22 77.352 47.226 31.088 18.734 3.6263 -471 "U16" 97.824 159.49 134.64 18.911 32.215 23.899 -472 "V16" 133.39 81.567 151.23 26.145 16.883 27.363 -473 "W16" 155.32 82.024 48.477 33.705 20.761 3.7986 -474 "X16" 81.301 147.86 56.013 14.361 27.487 7.1744 -475 "Y16" 141.53 112.75 178.08 29.882 22.982 39.138 -476 "Z16" 31.556 30.196 30.075 2.4233 2.4412 1.9648 -477 "2A16" 166.04 149.78 129.15 42.519 39.188 21.270 -478 "2B16" 53.939 48.402 100.70 5.2349 4.4461 13.823 -479 "2C16" 152.96 83.435 68.500 32.492 19.465 7.0806 -480 "2D16" 141.97 181.00 131.63 33.454 46.863 22.481 -481 "A17" 93.002 152.57 112.99 18.355 31.722 19.048 -482 "B17" 48.562 44.595 81.595 4.8626 4.2833 10.526 -483 "C17" 155.24 137.12 108.13 39.631 36.092 16.781 -484 "D17" 37.723 54.820 48.270 3.8471 5.8319 4.8962 -485 "E17" 163.04 158.68 133.73 43.491 44.349 22.904 -486 "F17" 155.10 81.151 47.477 35.028 21.444 3.8305 -487 "G17" 119.76 108.26 175.73 23.826 20.302 40.464 -488 "H17" 155.83 188.69 108.40 44.211 56.679 16.435 -489 "I17" 54.125 49.417 43.252 6.5115 6.2807 3.6004 -490 "J17" 146.89 182.65 155.76 35.464 48.530 31.500 -491 "K17" 148.71 77.345 50.119 31.217 18.833 4.2081 -492 "L17" 53.925 41.854 39.291 6.1796 5.0138 3.0160 -493 "M17" 105.46 156.83 167.45 21.355 33.511 36.981 -494 "N17" 149.16 79.222 103.08 31.382 17.339 13.539 -495 "O17" 109.98 107.89 138.78 20.515 20.076 24.934 -496 "P17" 151.99 78.765 47.620 32.143 19.447 3.7592 -497 "Q17" 195.13 169.06 200.08 60.501 50.532 52.708 -498 "R17" 73.599 136.55 49.271 12.657 24.420 5.6873 -499 "S17" 37.757 33.718 34.938 3.4355 3.1639 2.5372 -500 "T17" 132.61 142.77 197.68 28.192 29.771 51.322 -501 "U17" 181.82 145.93 103.48 52.660 42.651 15.019 -502 "V17" 204.10 203.91 210.35 69.823 71.393 63.731 -503 "W17" 175.82 179.36 52.229 44.995 50.413 5.2421 -504 "X17" 155.69 156.50 143.88 37.401 38.967 26.702 -505 "Y17" 65.731 44.495 80.654 8.0339 5.5483 9.9052 -506 "Z17" 67.930 138.21 88.916 10.382 21.829 11.599 -507 "2A17" 156.40 87.866 68.881 34.325 21.131 7.2263 -508 "2B17" 68.870 68.990 41.254 9.1863 9.9839 3.1512 -509 "2C17" 209.60 202.66 207.60 75.534 73.388 61.922 -510 "2D17" 108.97 87.062 152.98 19.258 14.916 29.290 -511 "A18" 200.70 204.40 197.90 74.089 78.770 59.424 -512 "B18" 164.93 117.44 177.68 42.903 30.204 40.715 -513 "C18" 61.227 72.827 56.013 8.7363 10.837 6.0872 -514 "D18" 204.51 199.19 195.95 75.509 74.636 56.066 -515 "E18" 73.692 73.322 148.06 10.413 9.8011 28.727 -516 "F18" 68.313 128.24 45.392 11.836 22.861 5.4226 -517 "G18" 131.14 85.288 152.52 26.954 18.177 29.358 -518 "H18" 89.609 153.68 93.128 16.220 29.699 13.154 -519 "I18" 30.179 29.676 28.922 2.3647 2.3980 1.9090 -520 "J18" 208.65 210.69 209.48 77.786 81.283 65.463 -521 "K18" 88.863 70.346 63.498 14.363 11.898 6.7644 -522 "L18" 197.92 177.16 54.602 60.378 57.128 5.2726 -523 "M18" 143.55 91.470 162.00 30.554 20.123 31.743 -524 "N18" 121.99 131.52 122.44 24.748 27.645 20.451 -525 "O18" 172.04 115.00 91.328 44.929 31.003 12.389 -526 "P18" 81.187 74.923 148.64 11.881 10.425 27.990 -527 "Q18" 117.91 169.48 101.12 25.737 39.690 14.823 -528 "R18" 183.93 145.62 52.297 52.300 42.856 4.6545 -529 "S18" 55.452 105.38 65.438 7.2126 14.429 7.1944 -530 "T18" 211.11 208.92 210.90 77.679 78.425 65.193 -531 "U18" 177.41 124.39 134.00 47.084 32.209 22.319 -532 "V18" 53.506 90.891 78.889 6.6683 11.848 10.189 -533 "W18" 197.65 205.13 206.81 65.207 70.970 60.729 -534 "X18" 51.396 86.860 43.674 6.2806 11.330 4.1095 -535 "Y18" 193.58 175.18 113.92 60.571 56.044 16.070 -536 "Z18" 96.313 103.94 178.60 15.673 16.045 40.153 -537 "2A18" 168.53 106.08 128.73 41.178 25.901 19.845 -538 "2B18" 85.496 104.15 136.89 13.693 16.674 24.407 -539 "2C18" 208.09 210.26 179.31 74.223 78.952 41.733 -540 "2D18" 161.94 92.492 50.116 38.135 24.817 4.1395 -541 "A19" 156.71 112.54 101.12 39.239 29.094 15.479 -542 "B19" 42.513 58.501 40.536 4.7416 7.0454 3.4644 -543 "C19" 172.17 152.13 143.40 49.395 43.657 28.522 -544 "D19" 159.73 183.13 54.703 42.332 52.372 5.7052 -545 "E19" 119.21 105.48 95.518 24.242 22.424 14.026 -546 "F19" 30.235 29.764 29.269 2.4551 2.5226 2.0256 -547 "G19" 88.689 134.99 136.69 16.677 25.667 25.825 -548 "H19" 86.392 53.901 45.566 13.124 8.8453 3.5763 -549 "I19" 126.88 158.15 160.78 28.527 37.076 34.358 -550 "J19" 120.42 79.125 64.241 22.891 16.490 6.9749 -551 "K19" 108.34 160.80 164.56 22.666 35.279 35.631 -552 "L19" 49.327 39.952 38.592 5.4212 4.5484 2.9627 -553 "M19" 67.917 128.27 44.976 11.199 21.925 5.4425 -554 "N19" 127.84 62.080 45.945 22.708 12.897 3.6335 -555 "O19" 74.380 138.45 130.11 12.507 23.738 22.498 -556 "P19" 30.060 29.337 28.817 2.3442 2.3896 1.9267 -557 "Q19" 147.97 73.539 46.480 30.303 17.749 3.5777 -558 "R19" 75.153 76.608 151.15 10.104 9.7374 28.448 -559 "S19" 78.339 144.41 52.936 13.901 26.685 6.3873 -560 "T19" 31.312 30.556 30.767 2.4391 2.4780 2.0610 -561 "U19" 169.32 177.98 203.35 45.972 49.473 57.247 -562 "V19" 44.471 72.376 45.634 4.8275 8.3485 3.9886 -563 "W19" 199.02 205.39 55.979 63.154 70.855 7.5811 -564 "X19" 90.125 81.954 73.039 14.863 14.166 8.5770 -565 "Y19" 207.33 211.44 212.22 74.340 78.986 66.286 -566 "Z19" 182.95 126.85 175.69 49.996 33.344 36.894 -567 "2A19" 77.857 90.598 163.13 10.165 11.287 33.081 -568 "2B19" 202.16 204.23 49.052 62.642 69.515 6.2139 -569 "2C19" 162.94 96.440 68.740 38.429 24.741 7.3479 -570 "2D19" 83.952 84.116 160.97 12.944 12.283 32.608 -END_DATA diff --git a/ref/CMP_Digital_Target-3.ti2 b/ref/CMP_Digital_Target-3.ti2 deleted file mode 100644 index e4b15e9..0000000 --- a/ref/CMP_Digital_Target-3.ti2 +++ /dev/null @@ -1,601 +0,0 @@ -CTI2 - -DESCRIPTOR "Argyll Calibration Target chart information 2 for Christopher Metarie Digital Target 3" -ORIGINATOR "Argyll printtarg" -CREATED "Wed Sep 12 00:02:26 2007" -KEYWORD "TARGET_INSTRUMENT" -TARGET_INSTRUMENT "GretagMacbeth i1 Pro" -KEYWORD "ACCURATE_EXPECTED_VALUES" -ACCURATE_EXPECTED_VALUES "true" -KEYWORD "COLOR_REP" -COLOR_REP "RGB" -KEYWORD "STEPS_IN_PASS" -STEPS_IN_PASS "30" -KEYWORD "PASSES_IN_STRIPS2" -PASSES_IN_STRIPS2 "19" -KEYWORD "STRIP_INDEX_PATTERN" -STRIP_INDEX_PATTERN "0-9,@-9,@-9;1-999" -KEYWORD "PATCH_INDEX_PATTERN" -PATCH_INDEX_PATTERN "A-Z, 2-9" -KEYWORD "INDEX_ORDER" -INDEX_ORDER "PATCH_THEN_STRIP" - -KEYWORD "SAMPLE_LOC" -NUMBER_OF_FIELDS 8 -BEGIN_DATA_FORMAT -SAMPLE_ID SAMPLE_LOC RGB_R RGB_G RGB_B XYZ_X XYZ_Y XYZ_Z -END_DATA_FORMAT - -NUMBER_OF_SETS 570 -BEGIN_DATA -1 "A1" 106.60 73.896 140.50 19.991 14.120 27.886 -2 "B1" 101.22 157.76 91.298 19.926 34.054 14.005 -3 "C1" 56.474 54.712 116.20 6.2319 5.6339 19.078 -4 "D1" 142.23 143.96 106.67 32.785 35.198 16.672 -5 "E1" 161.58 92.303 143.82 38.996 22.658 25.805 -6 "F1" 90.405 96.497 94.153 16.011 17.612 14.561 -7 "G1" 163.39 98.124 88.178 39.496 24.997 12.003 -8 "H1" 63.278 55.370 115.21 7.4905 6.2468 18.358 -9 "I1" 71.385 133.64 49.363 11.987 23.286 6.5928 -10 "J1" 97.757 75.383 143.28 16.591 12.444 27.331 -11 "K1" 194.49 193.52 200.39 63.038 64.179 58.403 -12 "L1" 43.729 37.037 36.612 4.3513 3.8393 2.7750 -13 "M1" 128.36 143.53 178.51 27.386 30.873 42.527 -14 "N1" 136.71 176.12 173.90 31.789 44.281 40.439 -15 "O1" 190.25 190.03 173.26 59.453 61.985 40.335 -16 "P1" 139.89 69.074 45.054 26.783 15.713 3.5833 -17 "Q1" 34.433 40.188 37.667 3.0238 3.6843 3.0876 -18 "R1" 87.362 153.04 89.833 15.462 28.885 12.776 -19 "S1" 124.79 84.048 151.84 23.694 16.421 29.352 -20 "T1" 201.42 206.76 79.283 65.900 73.381 11.377 -21 "U1" 59.875 104.70 93.370 8.3333 15.036 13.749 -22 "V1" 205.39 208.60 159.63 72.416 77.985 33.423 -23 "W1" 91.572 136.12 167.03 16.393 25.254 38.122 -24 "X1" 30.336 29.306 28.957 2.3144 2.3581 1.9303 -25 "Y1" 132.60 110.17 107.91 27.102 23.276 16.813 -26 "Z1" 32.956 33.215 31.185 2.6994 2.8850 2.2332 -27 "2A1" 70.282 129.32 46.946 10.757 20.588 4.8216 -28 "2B1" 159.00 173.65 202.91 40.765 45.919 58.857 -29 "2C1" 121.19 88.150 161.84 22.864 16.381 33.839 -30 "2D1" 136.59 101.50 125.83 28.289 21.404 20.483 -31 "A2" 75.414 80.525 150.43 10.412 10.567 30.978 -32 "B2" 128.64 63.027 42.872 24.139 14.085 3.5857 -33 "C2" 101.62 116.40 166.26 19.473 21.752 38.376 -34 "D2" 129.62 78.772 146.55 26.280 16.991 28.035 -35 "E2" 164.20 144.75 82.589 42.573 39.671 9.6556 -36 "F2" 96.904 110.83 179.21 17.113 18.705 43.690 -37 "G2" 157.24 84.071 46.359 35.850 22.548 3.8554 -38 "H2" 84.439 70.424 140.26 13.037 10.392 26.425 -39 "I2" 81.661 147.44 58.864 14.946 28.262 8.1825 -40 "J2" 35.433 35.856 32.072 3.1780 3.3914 2.3047 -41 "K2" 150.66 144.08 140.58 35.880 35.178 26.683 -42 "L2" 158.35 93.379 154.74 36.434 22.147 28.386 -43 "M2" 100.38 93.492 99.897 17.689 17.022 15.072 -44 "N2" 158.93 93.968 95.921 36.396 23.022 13.623 -45 "O2" 102.60 137.21 171.09 19.884 26.988 39.544 -46 "P2" 74.932 50.703 44.902 10.294 7.4271 3.4839 -47 "Q2" 115.12 165.78 166.70 24.415 37.008 36.288 -48 "R2" 157.97 92.663 150.58 36.078 21.682 26.898 -49 "S2" 83.913 88.787 161.27 12.232 12.247 33.412 -50 "T2" 72.772 133.20 48.154 12.486 23.920 5.4357 -51 "U2" 155.64 177.45 175.23 38.913 47.091 40.794 -52 "V2" 65.311 50.797 44.712 8.3779 6.8387 3.7119 -53 "W2" 30.304 29.389 28.630 2.3401 2.3804 1.9157 -54 "X2" 98.383 112.57 76.501 17.501 20.678 9.7225 -55 "Y2" 196.95 176.56 81.174 60.324 56.490 9.7029 -56 "Z2" 106.87 76.461 64.020 18.340 14.257 6.9452 -57 "2A2" 149.29 180.57 55.756 39.051 50.700 6.0515 -58 "2B2" 46.850 72.093 42.887 5.3134 8.7205 3.7883 -59 "2C2" 126.21 86.097 104.74 24.040 16.842 14.641 -60 "2D2" 68.443 138.05 59.668 10.963 22.720 8.1563 -61 "A3" 40.703 34.668 43.170 3.2215 2.8069 3.1344 -62 "B3" 140.80 177.61 130.47 35.703 49.122 24.276 -63 "C3" 71.422 72.467 144.63 9.6710 9.2674 28.141 -64 "D3" 157.83 159.05 109.87 39.368 42.329 16.693 -65 "E3" 74.511 78.412 148.91 9.8448 9.8037 29.501 -66 "F3" 172.35 192.98 167.60 50.040 60.997 38.371 -67 "G3" 72.505 72.322 146.66 9.8731 9.2375 28.216 -68 "H3" 132.85 167.63 50.020 31.926 43.409 5.2962 -69 "I3" 99.822 132.27 193.48 18.889 24.530 52.235 -70 "J3" 158.78 88.817 87.144 36.271 22.167 11.952 -71 "K3" 146.32 156.61 192.38 34.281 37.060 50.573 -72 "L3" 30.978 30.641 29.826 2.4511 2.5353 2.0398 -73 "M3" 146.27 153.30 150.57 34.120 37.136 30.510 -74 "N3" 144.16 70.919 46.534 28.309 16.461 3.7229 -75 "O3" 85.091 72.947 144.27 12.851 10.508 27.052 -76 "P3" 122.91 131.12 67.881 24.532 27.910 7.4170 -77 "Q3" 140.27 116.77 178.48 29.800 23.719 40.761 -78 "R3" 73.020 103.31 46.082 11.420 17.249 4.2060 -79 "S3" 148.58 74.828 46.145 30.098 17.923 3.6411 -80 "T3" 92.676 106.61 179.17 15.102 16.455 41.548 -81 "U3" 89.067 149.36 56.522 16.816 29.880 6.2892 -82 "V3" 104.27 103.98 177.68 19.054 17.886 40.635 -83 "W3" 122.27 64.970 44.965 21.160 13.146 3.6418 -84 "X3" 190.80 157.08 167.65 56.827 44.647 36.033 -85 "Y3" 55.033 94.759 44.077 7.3224 13.350 4.3645 -86 "Z3" 157.08 85.576 87.558 34.447 20.515 11.595 -87 "2A3" 79.250 88.578 159.52 10.795 11.448 32.464 -88 "2B3" 108.15 127.71 55.172 20.617 25.691 5.5795 -89 "2C3" 78.102 75.847 150.05 11.126 10.174 28.914 -90 "2D3" 202.83 194.20 199.16 68.724 66.102 56.410 -91 "A4" 105.09 86.729 157.14 19.671 15.554 33.919 -92 "B4" 99.696 102.26 43.923 17.501 19.753 3.8498 -93 "C4" 107.26 130.81 190.72 21.509 25.734 51.674 -94 "D4" 178.30 141.51 75.719 51.958 42.451 9.1213 -95 "E4" 86.201 111.97 176.39 14.112 17.806 42.697 -96 "F4" 192.41 193.92 143.50 61.487 65.884 27.427 -97 "G4" 161.20 95.317 155.94 38.420 23.239 29.457 -98 "H4" 74.863 77.945 149.59 9.8759 9.7311 29.126 -99 "I4" 207.61 208.23 184.16 75.793 79.718 46.695 -100 "J4" 70.931 101.90 131.71 10.595 15.480 24.653 -101 "K4" 147.01 94.545 162.80 32.187 21.331 32.814 -102 "L4" 81.586 103.83 104.84 13.777 17.753 16.663 -103 "M4" 141.06 69.848 45.247 27.339 16.027 3.5603 -104 "N4" 90.494 151.07 150.65 16.922 28.995 29.336 -105 "O4" 55.294 41.016 63.313 6.3066 4.7610 6.9921 -106 "P4" 111.84 140.47 103.22 22.390 29.210 15.592 -107 "Q4" 144.45 93.249 162.31 30.657 20.369 32.268 -108 "R4" 105.31 104.82 101.31 19.152 19.807 15.592 -109 "S4" 79.325 137.68 48.973 13.948 25.671 5.2122 -110 "T4" 84.189 150.82 120.01 14.991 27.898 19.745 -111 "U4" 81.413 52.379 93.432 11.486 7.6381 12.484 -112 "V4" 76.459 77.531 42.048 10.749 11.899 3.2945 -113 "W4" 211.28 212.44 213.00 77.699 80.782 67.995 -114 "X4" 125.79 102.06 67.469 24.430 21.610 7.1800 -115 "Y4" 36.736 36.340 46.306 3.2104 3.1999 4.2513 -116 "Z4" 83.114 150.29 61.891 14.450 27.763 8.5197 -117 "2A4" 117.71 90.574 160.37 21.679 16.235 32.574 -118 "2B4" 89.463 153.87 72.494 15.737 29.267 10.078 -119 "2C4" 42.498 47.832 65.570 3.9226 4.4418 7.5674 -120 "2D4" 115.91 156.34 101.73 24.022 34.375 15.022 -121 "A5" 100.43 57.576 43.875 16.920 10.945 3.6233 -122 "B5" 139.57 140.52 191.37 32.876 32.373 51.547 -123 "C5" 106.24 157.82 63.346 23.454 37.144 7.5202 -124 "D5" 120.63 119.68 128.56 24.762 25.266 23.702 -125 "E5" 144.32 70.530 44.643 29.192 16.958 3.5359 -126 "F5" 112.12 164.88 139.23 23.640 37.186 26.447 -127 "G5" 103.37 136.87 47.413 20.387 28.842 4.7028 -128 "H5" 36.251 41.780 35.395 3.3636 4.0809 2.6833 -129 "I5" 111.24 162.80 164.26 23.272 35.820 35.198 -130 "J5" 143.56 87.562 156.55 30.642 19.573 30.103 -131 "K5" 109.54 163.06 164.19 22.753 35.416 35.064 -132 "L5" 79.627 52.133 45.354 11.209 7.8786 3.5144 -133 "M5" 92.456 152.33 153.19 17.513 29.721 30.234 -134 "N5" 34.714 33.013 32.281 2.9935 2.9559 2.2837 -135 "O5" 166.35 175.94 163.99 44.139 49.035 35.423 -136 "P5" 89.669 79.549 47.144 14.200 13.959 3.6761 -137 "Q5" 191.24 182.85 188.48 59.021 56.831 48.262 -138 "R5" 51.675 70.899 41.770 6.3401 9.2262 3.4989 -139 "S5" 170.53 177.54 173.76 45.700 49.818 40.124 -140 "T5" 63.890 93.942 45.687 9.3142 14.437 4.0636 -141 "U5" 30.168 29.299 28.940 2.3535 2.3975 1.9290 -142 "V5" 133.08 133.14 122.05 27.766 28.925 20.091 -143 "W5" 36.054 32.923 33.276 3.0887 2.9300 2.3596 -144 "X5" 61.314 111.77 45.755 8.7239 16.803 5.0276 -145 "Y5" 203.39 209.40 208.06 70.161 75.882 63.247 -146 "Z5" 76.353 77.670 109.77 11.191 11.244 16.654 -147 "2A5" 193.86 202.18 186.73 62.394 68.771 47.096 -148 "2B5" 84.630 73.965 145.61 12.640 10.459 27.333 -149 "2C5" 68.392 129.05 45.336 11.160 21.761 5.5099 -150 "2D5" 210.46 210.49 195.89 77.413 80.592 53.936 -151 "A6" 156.79 90.614 148.03 37.703 22.453 27.499 -152 "B6" 88.481 111.82 178.46 14.943 18.301 44.058 -153 "C6" 167.90 108.82 66.983 44.282 30.956 7.9185 -154 "D6" 66.578 110.85 54.360 10.440 18.144 6.5076 -155 "E6" 148.31 87.735 154.80 32.892 20.486 29.274 -156 "F6" 93.611 155.13 115.73 17.819 31.263 19.184 -157 "G6" 40.190 39.280 58.763 3.7468 3.6058 6.3752 -158 "H6" 170.89 152.59 147.19 45.907 41.132 28.818 -159 "I6" 46.469 44.545 75.326 4.4472 4.1158 9.1204 -160 "J6" 102.48 151.18 180.03 20.388 31.549 44.358 -161 "K6" 30.872 30.164 29.516 2.3970 2.4515 1.9961 -162 "L6" 83.294 137.00 98.315 14.323 24.343 14.536 -163 "M6" 30.722 30.150 29.446 2.3623 2.4293 1.9541 -164 "N6" 163.74 151.67 194.83 41.190 36.767 50.714 -165 "O6" 199.83 203.65 49.970 62.357 69.847 6.3069 -166 "P6" 77.512 86.873 159.07 10.124 10.811 31.915 -167 "Q6" 200.99 194.31 190.45 67.127 65.762 49.352 -168 "R6" 165.39 100.99 154.68 39.128 23.959 27.822 -169 "S6" 69.496 98.026 61.986 10.413 15.222 6.7952 -170 "T6" 167.68 124.93 146.98 41.195 30.074 26.292 -171 "U6" 62.706 68.483 60.211 8.4099 9.5591 6.5834 -172 "V6" 174.63 108.06 166.14 43.942 26.976 32.439 -173 "W6" 138.60 174.02 106.27 33.397 44.263 15.513 -174 "X6" 192.12 161.59 197.05 56.629 45.672 50.137 -175 "Y6" 71.207 70.503 63.173 10.198 10.583 6.9283 -176 "Z6" 171.42 121.85 182.26 42.782 29.822 40.386 -177 "2A6" 193.77 197.98 207.14 61.567 65.013 61.274 -178 "2B6" 117.80 82.965 151.94 21.335 15.115 28.916 -179 "2C6" 36.305 39.517 34.462 3.2203 3.7212 2.6005 -180 "2D6" 152.48 145.44 148.89 35.799 34.854 29.422 -181 "A7" 93.637 153.35 73.710 19.123 33.078 10.667 -182 "B7" 83.277 73.755 144.52 12.915 10.831 28.225 -183 "C7" 206.85 206.70 197.33 77.518 80.587 57.622 -184 "D7" 77.454 73.349 146.72 11.348 10.154 28.703 -185 "E7" 70.809 132.64 47.023 12.442 24.254 5.6475 -186 "F7" 91.049 88.345 163.10 15.345 13.969 34.910 -187 "G7" 177.87 190.87 53.018 52.703 61.988 5.9513 -188 "H7" 75.960 87.720 159.98 9.9056 10.888 32.881 -189 "I7" 199.48 192.77 181.55 67.471 66.483 44.705 -190 "J7" 64.713 68.090 67.610 8.8426 9.6268 8.1730 -191 "K7" 193.08 175.48 139.54 61.925 56.855 24.968 -192 "L7" 75.430 87.876 159.79 9.6349 10.726 32.427 -193 "M7" 133.24 173.17 56.742 32.435 45.157 6.1480 -194 "N7" 148.49 75.098 46.216 30.427 18.146 3.6270 -195 "O7" 97.134 97.177 86.559 16.928 17.695 11.911 -196 "P7" 191.20 160.30 54.685 56.094 48.894 4.9467 -197 "Q7" 80.068 80.251 125.32 11.934 11.778 20.573 -198 "R7" 83.368 147.19 55.358 15.285 28.434 6.3346 -199 "S7" 37.747 44.719 36.907 3.5054 4.3615 2.7830 -200 "T7" 146.52 175.26 205.50 35.099 44.589 58.771 -201 "U7" 133.97 82.941 152.98 26.155 17.005 28.079 -202 "V7" 63.182 103.22 97.125 8.9086 14.924 14.071 -203 "W7" 144.22 147.07 76.384 30.611 33.536 8.6858 -204 "X7" 212.78 213.19 211.89 79.113 81.784 66.503 -205 "Y7" 77.896 86.298 158.37 10.240 10.764 31.229 -206 "Z7" 71.313 133.52 47.389 11.976 23.218 5.4228 -207 "2A7" 75.926 78.650 151.98 9.9976 9.7574 28.929 -208 "2B7" 118.08 168.98 98.781 25.572 39.297 14.262 -209 "2C7" 207.34 198.34 43.623 66.257 69.908 5.8960 -210 "2D7" 92.639 108.26 179.66 14.893 16.603 41.626 -211 "A8" 69.904 137.36 58.325 12.100 24.359 8.4071 -212 "B8" 167.09 144.55 49.599 42.436 39.900 4.7260 -213 "C8" 111.10 78.672 121.83 20.574 15.216 20.136 -214 "D8" 74.340 141.34 56.829 12.701 25.255 8.1803 -215 "E8" 104.13 74.055 141.65 18.324 13.039 26.409 -216 "F8" 90.075 154.61 90.911 16.724 30.035 13.212 -217 "G8" 36.341 33.896 36.868 3.3200 3.1831 3.0291 -218 "H8" 101.65 159.66 134.07 20.304 33.570 24.443 -219 "I8" 34.216 33.499 37.712 2.9169 2.9009 3.0168 -220 "J8" 174.41 165.56 173.38 48.038 46.099 39.891 -221 "K8" 46.252 66.300 42.397 5.2241 8.0427 3.5985 -222 "L8" 152.69 184.12 182.69 38.619 50.368 44.407 -223 "M8" 30.240 29.863 28.939 2.3428 2.3959 1.9273 -224 "N8" 35.593 35.467 34.190 3.1956 3.3116 2.6415 -225 "O8" 71.728 71.553 70.937 10.494 10.847 8.8081 -226 "P8" 115.92 116.10 114.68 22.233 23.005 18.548 -227 "Q8" 159.85 160.38 159.13 39.317 40.778 33.056 -228 "R8" 196.60 197.21 197.12 63.147 65.480 53.862 -229 "S8" 137.57 112.53 140.33 28.252 23.514 24.400 -230 "T8" 80.940 142.13 50.952 14.520 26.909 5.4756 -231 "U8" 99.365 133.93 196.43 18.057 24.054 51.817 -232 "V8" 30.957 30.566 29.813 2.3402 2.3911 1.9209 -233 "W8" 212.09 210.69 210.55 77.838 79.255 64.883 -234 "X8" 90.920 71.799 46.751 14.232 12.342 3.5677 -235 "Y8" 137.72 177.30 175.40 31.451 43.594 39.472 -236 "Z8" 39.524 49.911 38.685 3.8429 5.0881 3.0661 -237 "2A8" 130.39 176.13 127.05 27.844 41.491 21.140 -238 "2B8" 31.904 31.437 30.690 2.4921 2.5648 2.0613 -239 "2C8" 149.77 158.18 196.00 34.635 36.777 50.964 -240 "2D8" 30.719 29.824 29.600 2.3436 2.3905 1.9440 -241 "A9" 160.64 188.72 135.75 46.811 59.109 25.406 -242 "B9" 151.09 113.48 161.82 35.695 26.905 33.928 -243 "C9" 56.378 101.12 44.028 8.0578 15.313 4.8058 -244 "D9" 200.86 192.61 183.06 70.562 68.540 46.575 -245 "E9" 77.639 89.149 161.20 10.633 11.656 33.787 -246 "F9" 183.43 148.52 132.23 54.113 43.360 23.933 -247 "G9" 53.868 83.869 77.703 7.1200 11.358 10.328 -248 "H9" 144.68 93.693 163.06 31.237 20.786 32.756 -249 "I9" 80.625 147.05 117.46 14.469 27.174 19.553 -250 "J9" 82.612 53.093 45.342 11.813 8.1727 3.4750 -251 "K9" 179.05 178.11 205.03 51.613 51.265 59.093 -252 "L9" 68.256 128.21 45.397 11.232 21.889 5.3482 -253 "M9" 30.122 29.559 28.786 2.3389 2.3932 1.9205 -254 "N9" 44.132 44.030 43.113 4.6543 4.8363 3.9004 -255 "O9" 77.603 77.496 77.212 11.973 12.444 10.082 -256 "P9" 123.38 123.35 123.35 24.548 25.410 20.720 -257 "Q9" 167.61 168.12 167.11 43.270 44.842 36.215 -258 "R9" 202.61 204.17 205.53 68.113 71.034 59.864 -259 "S9" 152.34 81.269 59.657 31.468 18.903 5.4734 -260 "T9" 36.525 39.233 37.120 3.2297 3.6435 2.9170 -261 "U9" 147.79 112.59 105.57 31.779 25.042 15.321 -262 "V9" 128.85 175.42 85.449 30.098 43.673 10.856 -263 "W9" 202.12 182.11 203.04 65.360 57.273 55.175 -264 "X9" 58.841 111.22 46.014 7.8261 15.682 5.0934 -265 "Y9" 150.27 74.574 46.780 30.151 17.603 3.5424 -266 "Z9" 91.373 72.814 142.15 14.169 10.872 25.545 -267 "2A9" 178.42 178.87 165.68 49.740 51.961 35.295 -268 "2B9" 110.21 82.066 150.83 19.293 14.167 28.533 -269 "2C9" 115.57 141.00 82.227 23.305 29.469 10.465 -270 "2D9" 120.44 87.308 156.62 22.420 16.254 30.792 -271 "A10" 54.278 98.104 59.100 7.4766 14.316 6.7672 -272 "B10" 141.49 142.92 50.130 30.693 34.185 4.8132 -273 "C10" 69.545 135.98 93.417 11.568 23.235 13.773 -274 "D10" 30.772 30.009 29.471 2.4307 2.4999 2.0171 -275 "E10" 140.52 89.479 159.03 30.140 19.949 31.751 -276 "F10" 88.149 135.62 165.23 15.810 25.353 37.521 -277 "G10" 30.508 30.075 29.389 2.4272 2.4936 1.9887 -278 "H10" 75.794 144.13 86.030 12.549 25.096 11.562 -279 "I10" 29.881 29.286 28.915 2.3402 2.3788 1.9223 -280 "J10" 78.427 139.08 135.09 13.387 24.235 23.958 -281 "K10" 127.69 103.24 52.122 25.478 22.853 4.3681 -282 "L10" 47.518 38.484 37.887 5.0366 4.2550 2.8902 -283 "M10" 30.202 29.466 28.978 2.3374 2.3915 1.9194 -284 "N10" 50.671 50.438 49.901 5.8942 6.1054 4.9143 -285 "O10" 84.087 84.218 84.130 13.462 14.013 11.428 -286 "P10" 130.92 131.27 131.19 27.055 28.014 23.007 -287 "Q10" 174.24 174.94 173.31 47.406 49.169 39.386 -288 "R10" 208.46 209.75 212.17 73.974 77.043 65.729 -289 "S10" 61.440 61.759 68.112 7.8358 8.0794 7.9176 -290 "T10" 189.59 154.63 195.61 54.395 42.563 48.165 -291 "U10" 70.065 139.76 58.155 11.113 22.841 7.7084 -292 "V10" 34.382 38.877 37.374 2.9394 3.4387 2.9247 -293 "W10" 81.185 148.91 88.683 13.284 25.973 11.867 -294 "X10" 31.337 30.706 30.647 2.4768 2.5120 2.1182 -295 "Y10" 132.10 124.54 122.36 27.102 26.481 19.829 -296 "Z10" 128.86 77.259 44.848 23.978 16.698 3.6586 -297 "2A10" 121.07 144.71 145.24 24.659 30.178 27.108 -298 "2B10" 91.404 54.498 76.524 13.618 8.1445 8.4106 -299 "2C10" 122.45 129.19 129.52 24.412 26.496 22.533 -300 "2D10" 52.091 43.712 85.349 5.2897 4.2252 10.803 -301 "A11" 95.121 56.945 109.13 15.662 9.9371 16.757 -302 "B11" 49.247 84.978 41.595 6.3528 11.756 4.1276 -303 "C11" 201.38 188.28 201.57 70.247 65.054 58.834 -304 "D11" 165.99 106.71 48.883 42.904 30.283 4.3741 -305 "E11" 142.45 151.87 140.77 33.675 37.292 27.259 -306 "F11" 59.895 43.373 70.686 7.3260 5.3398 8.4321 -307 "G11" 185.60 179.80 175.52 56.748 56.026 41.441 -308 "H11" 62.810 62.001 39.464 8.1585 8.7147 3.0001 -309 "I11" 182.38 181.99 177.01 54.512 56.195 42.466 -310 "J11" 44.613 62.579 56.523 4.9736 7.2275 6.1574 -311 "K11" 177.26 171.26 154.02 50.413 50.352 29.675 -312 "L11" 81.706 58.921 119.57 11.783 8.3671 18.993 -313 "M11" 30.648 29.769 29.464 2.4004 2.4632 1.9865 -314 "N11" 56.534 56.324 55.689 7.0502 7.2979 5.9348 -315 "O11" 89.911 89.936 88.980 15.157 15.663 12.643 -316 "P11" 140.77 141.41 140.88 30.809 31.935 26.037 -317 "Q11" 179.84 180.21 178.58 51.029 52.827 42.179 -318 "R11" 212.60 213.84 215.53 78.892 82.077 69.152 -319 "S11" 66.493 66.184 65.558 9.0391 9.3614 7.5795 -320 "T11" 187.32 160.61 146.99 54.688 46.067 27.270 -321 "U11" 59.842 44.929 41.517 7.0672 5.5203 3.1542 -322 "V11" 100.71 151.70 177.40 19.018 30.251 40.808 -323 "W11" 32.433 32.983 31.555 2.6438 2.7813 2.1741 -324 "X11" 103.41 161.56 150.03 20.294 33.254 28.954 -325 "Y11" 49.930 46.756 84.028 4.7917 4.3367 10.461 -326 "Z11" 157.24 187.57 185.20 39.678 51.335 44.730 -327 "2A11" 69.840 130.51 46.639 11.397 22.075 5.4606 -328 "2B11" 164.73 190.77 189.92 43.396 54.386 47.692 -329 "2C11" 67.660 57.565 50.639 9.0264 8.0855 4.5632 -330 "2D11" 146.88 73.255 46.894 29.263 17.239 3.6542 -331 "A12" 149.18 183.06 84.464 42.435 55.238 11.960 -332 "B12" 72.446 71.794 146.17 10.244 9.5241 28.550 -333 "C12" 111.58 163.80 82.344 25.557 39.490 11.397 -334 "D12" 67.115 62.023 67.669 9.5983 9.1448 8.3283 -335 "E12" 202.25 206.59 144.16 71.285 77.444 27.463 -336 "F12" 142.52 142.52 149.46 32.592 33.399 30.058 -337 "G12" 52.218 46.843 96.005 5.1430 4.3541 13.182 -338 "H12" 95.301 157.62 128.66 18.517 32.087 22.562 -339 "I12" 58.804 42.199 45.333 6.9977 5.1440 3.8014 -340 "J12" 201.67 207.01 112.57 69.246 76.042 17.844 -341 "K12" 76.878 56.433 113.86 10.642 7.6407 17.593 -342 "L12" 110.43 164.87 121.89 21.927 35.477 19.681 -343 "M12" 31.073 30.502 29.828 2.4287 2.4921 1.9949 -344 "N12" 60.863 60.999 60.221 7.9937 8.3172 6.7360 -345 "O12" 97.436 97.414 96.425 17.120 17.761 14.285 -346 "P12" 146.96 147.76 147.68 33.242 34.486 28.221 -347 "Q12" 186.04 186.49 184.52 55.136 57.000 45.303 -348 "R12" 217.03 217.69 217.80 84.047 87.070 71.496 -349 "S12" 173.81 166.67 164.48 46.799 45.618 34.284 -350 "T12" 61.998 59.133 126.43 6.6921 6.0185 19.773 -351 "U12" 133.08 178.53 107.01 31.583 45.365 15.646 -352 "V12" 159.59 92.307 67.569 35.975 22.808 7.0470 -353 "W12" 92.823 93.091 102.67 15.632 16.004 15.333 -354 "X12" 153.31 79.910 48.385 32.188 19.569 3.7849 -355 "Y12" 76.169 77.765 152.48 9.9981 9.6287 28.171 -356 "Z12" 80.867 145.82 55.209 14.429 27.348 6.4901 -357 "2A12" 88.726 84.091 155.13 13.822 12.446 29.936 -358 "2B12" 201.37 208.14 195.53 68.261 74.431 52.067 -359 "2C12" 32.004 31.705 30.813 2.4685 2.5621 2.0287 -360 "2D12" 135.53 145.08 187.78 28.798 30.974 45.549 -361 "A13" 86.415 69.301 138.07 14.129 10.884 26.286 -362 "B13" 104.58 136.42 46.559 21.280 29.662 4.6515 -363 "C13" 147.82 79.114 100.32 32.064 17.966 13.604 -364 "D13" 75.334 85.157 157.26 9.9611 10.733 32.277 -365 "E13" 178.81 179.96 148.24 51.845 54.927 28.181 -366 "F13" 55.482 72.327 100.16 6.3441 8.5421 15.068 -367 "G13" 200.09 199.75 184.43 68.699 71.452 46.387 -368 "H13" 76.688 84.710 151.41 10.374 10.902 29.169 -369 "I13" 129.73 107.35 52.022 26.203 23.997 4.3858 -370 "J13" 119.03 160.66 198.42 25.753 36.554 54.373 -371 "K13" 56.473 50.032 106.16 5.9068 4.9157 15.287 -372 "L13" 153.18 106.56 46.936 35.348 27.270 4.1933 -373 "M13" 32.264 31.978 31.289 2.6154 2.7053 2.1626 -374 "N13" 66.470 66.520 66.246 9.3637 9.6843 7.8391 -375 "O13" 105.28 105.86 104.76 19.359 20.106 16.147 -376 "P13" 153.75 154.63 154.12 36.624 37.957 30.671 -377 "Q13" 192.03 192.25 191.27 59.859 61.861 49.702 -378 "R13" 221.68 221.89 221.96 89.957 93.025 75.604 -379 "S13" 104.20 75.856 145.33 17.613 12.665 26.369 -380 "T13" 121.87 124.18 72.370 22.969 25.114 7.7873 -381 "U13" 91.392 55.886 72.021 13.623 8.3610 7.6135 -382 "V13" 193.01 176.53 161.70 59.661 54.433 33.140 -383 "W13" 97.047 61.496 44.638 15.045 10.609 3.4373 -384 "X13" 124.18 171.27 172.48 26.676 39.190 37.659 -385 "Y13" 100.95 103.55 45.932 16.770 18.831 3.7976 -386 "Z13" 98.719 76.722 108.03 16.243 13.004 15.620 -387 "2A13" 193.99 204.68 205.71 62.079 69.145 59.254 -388 "2B13" 77.619 94.368 167.50 9.8300 11.508 34.315 -389 "2C13" 91.512 53.191 50.701 13.378 8.4024 4.1065 -390 "2D13" 76.609 104.98 135.45 11.706 16.228 24.708 -391 "A14" 129.84 79.131 147.61 27.260 17.709 28.446 -392 "B14" 74.731 86.884 158.53 10.007 11.116 33.309 -393 "C14" 178.45 194.65 198.02 55.170 63.826 56.969 -394 "D14" 122.80 65.789 71.805 22.474 12.791 7.8220 -395 "E14" 99.529 101.15 66.691 17.833 19.340 7.6068 -396 "F14" 133.73 68.160 43.803 25.508 15.387 3.5019 -397 "G14" 130.31 174.28 137.87 28.674 42.244 25.294 -398 "H14" 110.49 77.413 145.63 20.013 14.167 27.201 -399 "I14" 30.999 29.764 29.587 2.4079 2.4331 1.9867 -400 "J14" 120.14 114.13 178.99 23.527 21.066 41.374 -401 "K14" 128.29 64.544 74.117 23.203 12.509 8.0121 -402 "L14" 176.70 157.34 183.40 48.486 42.511 43.112 -403 "M14" 59.777 105.00 45.141 8.6031 15.926 4.6200 -404 "N14" 182.00 181.11 190.30 53.107 53.884 48.977 -405 "O14" 42.651 40.749 62.042 3.9836 3.7404 6.5852 -406 "P14" 151.32 150.31 182.91 35.517 35.068 43.001 -407 "Q14" 162.51 94.932 125.82 37.782 22.314 19.042 -408 "R14" 99.745 94.301 93.467 17.467 17.105 13.104 -409 "S14" 107.25 159.78 58.090 22.370 35.508 5.9931 -410 "T14" 128.01 72.369 117.84 23.886 13.985 16.868 -411 "U14" 107.76 101.18 90.766 19.591 19.252 12.172 -412 "V14" 204.14 190.16 48.644 63.345 63.812 5.6645 -413 "W14" 82.597 65.626 44.970 12.028 10.481 3.3856 -414 "X14" 166.39 166.20 175.82 42.635 43.420 39.912 -415 "Y14" 100.69 152.17 51.384 19.856 32.192 5.1431 -416 "Z14" 91.650 100.20 90.746 15.570 17.641 12.711 -417 "2A14" 143.62 91.243 162.04 29.733 19.495 31.105 -418 "2B14" 214.71 215.34 214.31 81.209 84.285 67.959 -419 "2C14" 101.32 87.875 161.74 16.972 13.897 32.504 -420 "2D14" 105.18 138.75 68.497 20.262 27.906 7.7177 -421 "A15" 124.84 68.758 114.78 24.922 14.319 17.652 -422 "B15" 99.929 150.22 167.53 20.394 32.266 39.177 -423 "C15" 121.25 165.78 57.133 28.847 42.042 6.3345 -424 "D15" 129.49 121.04 130.58 27.579 26.553 23.681 -425 "E15" 161.27 95.254 123.97 38.874 23.290 19.357 -426 "F15" 148.20 174.03 142.22 36.703 46.352 27.027 -427 "G15" 150.41 98.923 167.42 34.061 22.803 34.531 -428 "H15" 75.180 91.615 158.04 10.113 11.921 31.879 -429 "I15" 196.22 179.25 172.32 64.423 58.008 39.281 -430 "J15" 66.558 62.105 60.696 9.4542 9.1717 6.7120 -431 "K15" 174.25 177.65 112.40 48.073 52.062 16.154 -432 "L15" 116.33 112.29 162.02 22.225 20.657 33.169 -433 "M15" 133.68 171.46 73.038 32.410 43.840 8.6168 -434 "N15" 102.47 146.49 198.15 19.932 29.141 53.896 -435 "O15" 64.715 46.574 43.032 8.2354 6.1612 3.2448 -436 "P15" 105.91 159.08 164.78 21.186 33.689 34.860 -437 "Q15" 34.379 33.754 36.003 2.8839 2.9372 2.7235 -438 "R15" 102.62 61.271 119.89 16.647 10.677 18.389 -439 "S15" 159.62 86.224 48.021 35.874 22.454 3.7685 -440 "T15" 95.611 158.57 127.45 18.024 31.495 21.231 -441 "U15" 133.03 87.140 157.87 26.027 17.635 30.172 -442 "V15" 48.894 77.368 43.484 5.7623 9.6302 3.8733 -443 "W15" 182.54 191.20 178.40 53.522 58.991 41.376 -444 "X15" 126.00 95.308 166.74 23.991 17.693 34.060 -445 "Y15" 38.376 39.986 33.590 3.5595 3.8688 2.3978 -446 "Z15" 148.30 148.94 147.37 34.055 35.265 28.241 -447 "2A15" 146.55 75.055 68.429 29.379 16.826 7.3609 -448 "2B15" 71.706 70.645 144.63 9.2107 8.5579 25.691 -449 "2C15" 133.02 80.816 44.452 25.707 18.129 3.6532 -450 "2D15" 82.777 113.54 117.52 13.875 19.568 19.948 -451 "A16" 147.43 75.104 45.417 32.441 19.582 3.7464 -452 "B16" 162.22 145.05 108.87 43.738 40.362 16.554 -453 "C16" 43.273 69.681 61.261 4.9159 8.3065 7.2559 -454 "D16" 154.15 106.72 65.606 37.197 27.832 7.4910 -455 "E16" 149.19 148.83 193.98 36.691 35.876 51.695 -456 "F16" 157.80 111.38 47.573 38.836 30.036 4.3338 -457 "G16" 100.61 79.449 149.13 17.555 13.363 28.888 -458 "H16" 206.92 207.61 211.44 75.466 77.836 67.216 -459 "I16" 97.895 82.272 66.348 16.954 15.112 7.2992 -460 "J16" 172.80 178.46 82.595 47.072 52.200 10.669 -461 "K16" 183.90 191.17 190.75 55.962 60.759 50.287 -462 "L16" 75.048 76.021 151.02 10.165 9.7715 28.705 -463 "M16" 159.42 88.282 47.938 36.859 23.500 3.8297 -464 "N16" 133.24 176.09 150.50 29.735 43.076 29.229 -465 "O16" 59.749 48.251 40.198 7.3545 6.2503 2.9745 -466 "P16" 171.06 168.69 161.58 46.114 46.965 33.568 -467 "Q16" 53.260 54.841 37.700 6.2218 6.8107 2.7776 -468 "R16" 147.03 76.735 66.424 29.663 17.214 6.8286 -469 "S16" 63.206 78.809 107.93 8.0381 10.138 16.410 -470 "T16" 150.22 77.352 47.226 31.088 18.734 3.6263 -471 "U16" 97.824 159.49 134.64 18.911 32.215 23.899 -472 "V16" 133.39 81.567 151.23 26.145 16.883 27.363 -473 "W16" 155.32 82.024 48.477 33.705 20.761 3.7986 -474 "X16" 81.301 147.86 56.013 14.361 27.487 7.1744 -475 "Y16" 141.53 112.75 178.08 29.882 22.982 39.138 -476 "Z16" 31.556 30.196 30.075 2.4233 2.4412 1.9648 -477 "2A16" 166.04 149.78 129.15 42.519 39.188 21.270 -478 "2B16" 53.939 48.402 100.70 5.2349 4.4461 13.823 -479 "2C16" 152.96 83.435 68.500 32.492 19.465 7.0806 -480 "2D16" 141.97 181.00 131.63 33.454 46.863 22.481 -481 "A17" 93.002 152.57 112.99 18.355 31.722 19.048 -482 "B17" 48.562 44.595 81.595 4.8626 4.2833 10.526 -483 "C17" 155.24 137.12 108.13 39.631 36.092 16.781 -484 "D17" 37.723 54.820 48.270 3.8471 5.8319 4.8962 -485 "E17" 163.04 158.68 133.73 43.491 44.349 22.904 -486 "F17" 155.10 81.151 47.477 35.028 21.444 3.8305 -487 "G17" 119.76 108.26 175.73 23.826 20.302 40.464 -488 "H17" 155.83 188.69 108.40 44.211 56.679 16.435 -489 "I17" 54.125 49.417 43.252 6.5115 6.2807 3.6004 -490 "J17" 146.89 182.65 155.76 35.464 48.530 31.500 -491 "K17" 148.71 77.345 50.119 31.217 18.833 4.2081 -492 "L17" 53.925 41.854 39.291 6.1796 5.0138 3.0160 -493 "M17" 105.46 156.83 167.45 21.355 33.511 36.981 -494 "N17" 149.16 79.222 103.08 31.382 17.339 13.539 -495 "O17" 109.98 107.89 138.78 20.515 20.076 24.934 -496 "P17" 151.99 78.765 47.620 32.143 19.447 3.7592 -497 "Q17" 195.13 169.06 200.08 60.501 50.532 52.708 -498 "R17" 73.599 136.55 49.271 12.657 24.420 5.6873 -499 "S17" 37.757 33.718 34.938 3.4355 3.1639 2.5372 -500 "T17" 132.61 142.77 197.68 28.192 29.771 51.322 -501 "U17" 181.82 145.93 103.48 52.660 42.651 15.019 -502 "V17" 204.10 203.91 210.35 69.823 71.393 63.731 -503 "W17" 175.82 179.36 52.229 44.995 50.413 5.2421 -504 "X17" 155.69 156.50 143.88 37.401 38.967 26.702 -505 "Y17" 65.731 44.495 80.654 8.0339 5.5483 9.9052 -506 "Z17" 67.930 138.21 88.916 10.382 21.829 11.599 -507 "2A17" 156.40 87.866 68.881 34.325 21.131 7.2263 -508 "2B17" 68.870 68.990 41.254 9.1863 9.9839 3.1512 -509 "2C17" 209.60 202.66 207.60 75.534 73.388 61.922 -510 "2D17" 108.97 87.062 152.98 19.258 14.916 29.290 -511 "A18" 200.70 204.40 197.90 74.089 78.770 59.424 -512 "B18" 164.93 117.44 177.68 42.903 30.204 40.715 -513 "C18" 61.227 72.827 56.013 8.7363 10.837 6.0872 -514 "D18" 204.51 199.19 195.95 75.509 74.636 56.066 -515 "E18" 73.692 73.322 148.06 10.413 9.8011 28.727 -516 "F18" 68.313 128.24 45.392 11.836 22.861 5.4226 -517 "G18" 131.14 85.288 152.52 26.954 18.177 29.358 -518 "H18" 89.609 153.68 93.128 16.220 29.699 13.154 -519 "I18" 30.179 29.676 28.922 2.3647 2.3980 1.9090 -520 "J18" 208.65 210.69 209.48 77.786 81.283 65.463 -521 "K18" 88.863 70.346 63.498 14.363 11.898 6.7644 -522 "L18" 197.92 177.16 54.602 60.378 57.128 5.2726 -523 "M18" 143.55 91.470 162.00 30.554 20.123 31.743 -524 "N18" 121.99 131.52 122.44 24.748 27.645 20.451 -525 "O18" 172.04 115.00 91.328 44.929 31.003 12.389 -526 "P18" 81.187 74.923 148.64 11.881 10.425 27.990 -527 "Q18" 117.91 169.48 101.12 25.737 39.690 14.823 -528 "R18" 183.93 145.62 52.297 52.300 42.856 4.6545 -529 "S18" 55.452 105.38 65.438 7.2126 14.429 7.1944 -530 "T18" 211.11 208.92 210.90 77.679 78.425 65.193 -531 "U18" 177.41 124.39 134.00 47.084 32.209 22.319 -532 "V18" 53.506 90.891 78.889 6.6683 11.848 10.189 -533 "W18" 197.65 205.13 206.81 65.207 70.970 60.729 -534 "X18" 51.396 86.860 43.674 6.2806 11.330 4.1095 -535 "Y18" 193.58 175.18 113.92 60.571 56.044 16.070 -536 "Z18" 96.313 103.94 178.60 15.673 16.045 40.153 -537 "2A18" 168.53 106.08 128.73 41.178 25.901 19.845 -538 "2B18" 85.496 104.15 136.89 13.693 16.674 24.407 -539 "2C18" 208.09 210.26 179.31 74.223 78.952 41.733 -540 "2D18" 161.94 92.492 50.116 38.135 24.817 4.1395 -541 "A19" 156.71 112.54 101.12 39.239 29.094 15.479 -542 "B19" 42.513 58.501 40.536 4.7416 7.0454 3.4644 -543 "C19" 172.17 152.13 143.40 49.395 43.657 28.522 -544 "D19" 159.73 183.13 54.703 42.332 52.372 5.7052 -545 "E19" 119.21 105.48 95.518 24.242 22.424 14.026 -546 "F19" 30.235 29.764 29.269 2.4551 2.5226 2.0256 -547 "G19" 88.689 134.99 136.69 16.677 25.667 25.825 -548 "H19" 86.392 53.901 45.566 13.124 8.8453 3.5763 -549 "I19" 126.88 158.15 160.78 28.527 37.076 34.358 -550 "J19" 120.42 79.125 64.241 22.891 16.490 6.9749 -551 "K19" 108.34 160.80 164.56 22.666 35.279 35.631 -552 "L19" 49.327 39.952 38.592 5.4212 4.5484 2.9627 -553 "M19" 67.917 128.27 44.976 11.199 21.925 5.4425 -554 "N19" 127.84 62.080 45.945 22.708 12.897 3.6335 -555 "O19" 74.380 138.45 130.11 12.507 23.738 22.498 -556 "P19" 30.060 29.337 28.817 2.3442 2.3896 1.9267 -557 "Q19" 147.97 73.539 46.480 30.303 17.749 3.5777 -558 "R19" 75.153 76.608 151.15 10.104 9.7374 28.448 -559 "S19" 78.339 144.41 52.936 13.901 26.685 6.3873 -560 "T19" 31.312 30.556 30.767 2.4391 2.4780 2.0610 -561 "U19" 169.32 177.98 203.35 45.972 49.473 57.247 -562 "V19" 44.471 72.376 45.634 4.8275 8.3485 3.9886 -563 "W19" 199.02 205.39 55.979 63.154 70.855 7.5811 -564 "X19" 90.125 81.954 73.039 14.863 14.166 8.5770 -565 "Y19" 207.33 211.44 212.22 74.340 78.986 66.286 -566 "Z19" 182.95 126.85 175.69 49.996 33.344 36.894 -567 "2A19" 77.857 90.598 163.13 10.165 11.287 33.081 -568 "2B19" 202.16 204.23 49.052 62.642 69.515 6.2139 -569 "2C19" 162.94 96.440 68.740 38.429 24.741 7.3479 -570 "2D19" 83.952 84.116 160.97 12.944 12.283 32.608 -END_DATA diff --git a/ref/CMP_Digital_Target-4.cht b/ref/CMP_Digital_Target-4.cht new file mode 100644 index 0000000..eb95ed8 --- /dev/null +++ b/ref/CMP_Digital_Target-4.cht @@ -0,0 +1,1210 @@ + +BOXES 571 + F _ _ 100 200 3100 200 3100 2100 100 2100 + D ALL ALL _ _ 3200 200 0 0 0 0 + X A Z 1 19 100 100 100 200 100 100 + X 2A 2D 1 19 100 100 2700 200 100 100 + +BOX_SHRINK 12 + +REF_ROTATION 0.0 + +XLIST 31 + 100 1 1 + 200 1 1 + 300 1 1 + 400 1 1 + 500 1 1 + 600 1 1 + 700 1 1 + 800 1 1 + 900 1 1 + 1000 1 1 + 1100 1 1 + 1200 1 1 + 1300 1 1 + 1400 1 1 + 1500 1 1 + 1600 1 1 + 1700 1 1 + 1800 1 1 + 1900 1 1 + 2000 1 1 + 2100 1 1 + 2200 1 1 + 2300 1 1 + 2400 1 1 + 2500 1 1 + 2600 1 1 + 2700 1 1 + 2800 1 1 + 2900 1 1 + 3000 1 1 + 3100 1 1 + +YLIST 21 + 200 1 1 + 300 1 1 + 400 1 1 + 500 1 1 + 600 1 1 + 700 1 1 + 800 1 1 + 900 1 1 + 1000 1 1 + 1100 1 1 + 1200 1 1 + 1300 1 1 + 1400 1 1 + 1500 1 1 + 1500 1 1 + 1600 1 1 + 1700 1 1 + 1800 1 1 + 1900 1 1 + 2000 1 1 + 2100 1 1 + +EXPECTED XYZ 570 +A1 19.991 14.120 27.886 +B1 19.926 34.054 14.005 +C1 6.2319 5.6339 19.078 +D1 32.785 35.198 16.672 +E1 38.996 22.658 25.805 +F1 16.011 17.612 14.561 +G1 39.496 24.997 12.003 +H1 7.4905 6.2468 18.358 +I1 11.987 23.286 6.5928 +J1 16.591 12.444 27.331 +K1 63.038 64.179 58.403 +L1 4.3513 3.8393 2.7750 +M1 27.386 30.873 42.527 +N1 31.789 44.281 40.439 +O1 59.453 61.985 40.335 +P1 26.783 15.713 3.5833 +Q1 3.0238 3.6843 3.0876 +R1 15.462 28.885 12.776 +S1 23.694 16.421 29.352 +T1 65.900 73.381 11.377 +U1 8.3333 15.036 13.749 +V1 72.416 77.985 33.423 +W1 16.393 25.254 38.122 +X1 2.3144 2.3581 1.9303 +Y1 27.102 23.276 16.813 +Z1 2.6994 2.8850 2.2332 +2A1 10.757 20.588 4.8216 +2B1 40.765 45.919 58.857 +2C1 22.864 16.381 33.839 +2D1 28.289 21.404 20.483 +A2 10.412 10.567 30.978 +B2 24.139 14.085 3.5857 +C2 19.473 21.752 38.376 +D2 26.280 16.991 28.035 +E2 42.573 39.671 9.6556 +F2 17.113 18.705 43.690 +G2 35.850 22.548 3.8554 +H2 13.037 10.392 26.425 +I2 14.946 28.262 8.1825 +J2 3.1780 3.3914 2.3047 +K2 35.880 35.178 26.683 +L2 36.434 22.147 28.386 +M2 17.689 17.022 15.072 +N2 36.396 23.022 13.623 +O2 19.884 26.988 39.544 +P2 10.294 7.4271 3.4839 +Q2 24.415 37.008 36.288 +R2 36.078 21.682 26.898 +S2 12.232 12.247 33.412 +T2 12.486 23.920 5.4357 +U2 38.913 47.091 40.794 +V2 8.3779 6.8387 3.7119 +W2 2.3401 2.3804 1.9157 +X2 17.501 20.678 9.7225 +Y2 60.324 56.490 9.7029 +Z2 18.340 14.257 6.9452 +2A2 39.051 50.700 6.0515 +2B2 5.3134 8.7205 3.7883 +2C2 24.040 16.842 14.641 +2D2 10.963 22.720 8.1563 +A3 3.2215 2.8069 3.1344 +B3 35.703 49.122 24.276 +C3 9.6710 9.2674 28.141 +D3 39.368 42.329 16.693 +E3 9.8448 9.8037 29.501 +F3 50.040 60.997 38.371 +G3 9.8731 9.2375 28.216 +H3 31.926 43.409 5.2962 +I3 18.889 24.530 52.235 +J3 36.271 22.167 11.952 +K3 34.281 37.060 50.573 +L3 2.4511 2.5353 2.0398 +M3 34.120 37.136 30.510 +N3 28.309 16.461 3.7229 +O3 12.851 10.508 27.052 +P3 24.532 27.910 7.4170 +Q3 29.800 23.719 40.761 +R3 11.420 17.249 4.2060 +S3 30.098 17.923 3.6411 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48.562 44.595 81.595 +C17 155.24 137.12 108.13 +D17 37.723 54.820 48.270 +E17 163.04 158.68 133.73 +F17 155.10 81.151 47.477 +G17 119.76 108.26 175.73 +H17 155.83 188.69 108.40 +I17 54.125 49.417 43.252 +J17 146.89 182.65 155.76 +K17 148.71 77.345 50.119 +L17 53.925 41.854 39.291 +M17 105.46 156.83 167.45 +N17 149.16 79.222 103.08 +O17 109.98 107.89 138.78 +P17 151.99 78.765 47.620 +Q17 195.13 169.06 200.08 +R17 73.599 136.55 49.271 +S17 37.757 33.718 34.938 +T17 132.61 142.77 197.68 +U17 181.82 145.93 103.48 +V17 204.10 203.91 210.35 +W17 175.82 179.36 52.229 +X17 155.69 156.50 143.88 +Y17 65.731 44.495 80.654 +Z17 67.930 138.21 88.916 +2A17 156.40 87.866 68.881 +2B17 68.870 68.990 41.254 +2C17 209.60 202.66 207.60 +2D17 108.97 87.062 152.98 +A18 200.70 204.40 197.90 +B18 164.93 117.44 177.68 +C18 61.227 72.827 56.013 +D18 204.51 199.19 195.95 +E18 73.692 73.322 148.06 +F18 68.313 128.24 45.392 +G18 131.14 85.288 152.52 +H18 89.609 153.68 93.128 +I18 30.179 29.676 28.922 +J18 208.65 210.69 209.48 +K18 88.863 70.346 63.498 +L18 197.92 177.16 54.602 +M18 143.55 91.470 162.00 +N18 121.99 131.52 122.44 +O18 172.04 115.00 91.328 +P18 81.187 74.923 148.64 +Q18 117.91 169.48 101.12 +R18 183.93 145.62 52.297 +S18 55.452 105.38 65.438 +T18 211.11 208.92 210.90 +U18 177.41 124.39 134.00 +V18 53.506 90.891 78.889 +W18 197.65 205.13 206.81 +X18 51.396 86.860 43.674 +Y18 193.58 175.18 113.92 +Z18 96.313 103.94 178.60 +2A18 168.53 106.08 128.73 +2B18 85.496 104.15 136.89 +2C18 208.09 210.26 179.31 +2D18 161.94 92.492 50.116 +A19 156.71 112.54 101.12 +B19 42.513 58.501 40.536 +C19 172.17 152.13 143.40 +D19 159.73 183.13 54.703 +E19 119.21 105.48 95.518 +F19 30.235 29.764 29.269 +G19 88.689 134.99 136.69 +H19 86.392 53.901 45.566 +I19 126.88 158.15 160.78 +J19 120.42 79.125 64.241 +K19 108.34 160.80 164.56 +L19 49.327 39.952 38.592 +M19 67.917 128.27 44.976 +N19 127.84 62.080 45.945 +O19 74.380 138.45 130.11 +P19 30.060 29.337 28.817 +Q19 147.97 73.539 46.480 +R19 75.153 76.608 151.15 +S19 78.339 144.41 52.936 +T19 31.312 30.556 30.767 +U19 169.32 177.98 203.35 +V19 44.471 72.376 45.634 +W19 199.02 205.39 55.979 +X19 90.125 81.954 73.039 +Y19 207.33 211.44 212.22 +Z19 182.95 126.85 175.69 +2A19 77.857 90.598 163.13 +2B19 202.16 204.23 49.052 +2C19 162.94 96.440 68.740 +2D19 83.952 84.116 160.97 + diff --git a/ref/CMP_Digital_Target-4.cie b/ref/CMP_Digital_Target-4.cie new file mode 100644 index 0000000..6c8ff5d --- /dev/null +++ b/ref/CMP_Digital_Target-4.cie @@ -0,0 +1,591 @@ +CTI3 + +DESCRIPTOR "Argyll Calibration Target chart information 3" +ORIGINATOR "Argyll chartread" +CREATED "Mon Sep 7 08:33:21 2009" +KEYWORD "DEVICE_CLASS" +DEVICE_CLASS "OUTPUT" +KEYWORD "COLOR_REP" +COLOR_REP "RGB_XYZ" +KEYWORD "TARGET_INSTRUMENT" +TARGET_INSTRUMENT "GretagMacbeth i1 Pro" + +KEYWORD "SAMPLE_LOC" +NUMBER_OF_FIELDS 8 +BEGIN_DATA_FORMAT +SAMPLE_ID SAMPLE_LOC RGB_R RGB_G RGB_B XYZ_X XYZ_Y XYZ_Z +END_DATA_FORMAT + +NUMBER_OF_SETS 570 +BEGIN_DATA +1 "A1" 106.60 73.896 140.50 19.991 14.120 27.886 +2 "B1" 101.22 157.76 91.298 19.926 34.054 14.005 +3 "C1" 56.474 54.712 116.20 6.2319 5.6339 19.078 +4 "D1" 142.23 143.96 106.67 32.785 35.198 16.672 +5 "E1" 161.58 92.303 143.82 38.996 22.658 25.805 +6 "F1" 90.405 96.497 94.153 16.011 17.612 14.561 +7 "G1" 163.39 98.124 88.178 39.496 24.997 12.003 +8 "H1" 63.278 55.370 115.21 7.4905 6.2468 18.358 +9 "I1" 71.385 133.64 49.363 11.987 23.286 6.5928 +10 "J1" 97.757 75.383 143.28 16.591 12.444 27.331 +11 "K1" 194.49 193.52 200.39 63.038 64.179 58.403 +12 "L1" 43.729 37.037 36.612 4.3513 3.8393 2.7750 +13 "M1" 128.36 143.53 178.51 27.386 30.873 42.527 +14 "N1" 136.71 176.12 173.90 31.789 44.281 40.439 +15 "O1" 190.25 190.03 173.26 59.453 61.985 40.335 +16 "P1" 139.89 69.074 45.054 26.783 15.713 3.5833 +17 "Q1" 34.433 40.188 37.667 3.0238 3.6843 3.0876 +18 "R1" 87.362 153.04 89.833 15.462 28.885 12.776 +19 "S1" 124.79 84.048 151.84 23.694 16.421 29.352 +20 "T1" 201.42 206.76 79.283 65.900 73.381 11.377 +21 "U1" 59.875 104.70 93.370 8.3333 15.036 13.749 +22 "V1" 205.39 208.60 159.63 72.416 77.985 33.423 +23 "W1" 91.572 136.12 167.03 16.393 25.254 38.122 +24 "X1" 30.336 29.306 28.957 2.3144 2.3581 1.9303 +25 "Y1" 132.60 110.17 107.91 27.102 23.276 16.813 +26 "Z1" 32.956 33.215 31.185 2.6994 2.8850 2.2332 +27 "2A1" 70.282 129.32 46.946 10.757 20.588 4.8216 +28 "2B1" 159.00 173.65 202.91 40.765 45.919 58.857 +29 "2C1" 121.19 88.150 161.84 22.864 16.381 33.839 +30 "2D1" 136.59 101.50 125.83 28.289 21.404 20.483 +31 "A2" 75.414 80.525 150.43 10.412 10.567 30.978 +32 "B2" 128.64 63.027 42.872 24.139 14.085 3.5857 +33 "C2" 101.62 116.40 166.26 19.473 21.752 38.376 +34 "D2" 129.62 78.772 146.55 26.280 16.991 28.035 +35 "E2" 164.20 144.75 82.589 42.573 39.671 9.6556 +36 "F2" 96.904 110.83 179.21 17.113 18.705 43.690 +37 "G2" 157.24 84.071 46.359 35.850 22.548 3.8554 +38 "H2" 84.439 70.424 140.26 13.037 10.392 26.425 +39 "I2" 81.661 147.44 58.864 14.946 28.262 8.1825 +40 "J2" 35.433 35.856 32.072 3.1780 3.3914 2.3047 +41 "K2" 150.66 144.08 140.58 35.880 35.178 26.683 +42 "L2" 158.35 93.379 154.74 36.434 22.147 28.386 +43 "M2" 100.38 93.492 99.897 17.689 17.022 15.072 +44 "N2" 158.93 93.968 95.921 36.396 23.022 13.623 +45 "O2" 102.60 137.21 171.09 19.884 26.988 39.544 +46 "P2" 74.932 50.703 44.902 10.294 7.4271 3.4839 +47 "Q2" 115.12 165.78 166.70 24.415 37.008 36.288 +48 "R2" 157.97 92.663 150.58 36.078 21.682 26.898 +49 "S2" 83.913 88.787 161.27 12.232 12.247 33.412 +50 "T2" 72.772 133.20 48.154 12.486 23.920 5.4357 +51 "U2" 155.64 177.45 175.23 38.913 47.091 40.794 +52 "V2" 65.311 50.797 44.712 8.3779 6.8387 3.7119 +53 "W2" 30.304 29.389 28.630 2.3401 2.3804 1.9157 +54 "X2" 98.383 112.57 76.501 17.501 20.678 9.7225 +55 "Y2" 196.95 176.56 81.174 60.324 56.490 9.7029 +56 "Z2" 106.87 76.461 64.020 18.340 14.257 6.9452 +57 "2A2" 149.29 180.57 55.756 39.051 50.700 6.0515 +58 "2B2" 46.850 72.093 42.887 5.3134 8.7205 3.7883 +59 "2C2" 126.21 86.097 104.74 24.040 16.842 14.641 +60 "2D2" 68.443 138.05 59.668 10.963 22.720 8.1563 +61 "A3" 40.703 34.668 43.170 3.2215 2.8069 3.1344 +62 "B3" 140.80 177.61 130.47 35.703 49.122 24.276 +63 "C3" 71.422 72.467 144.63 9.6710 9.2674 28.141 +64 "D3" 157.83 159.05 109.87 39.368 42.329 16.693 +65 "E3" 74.511 78.412 148.91 9.8448 9.8037 29.501 +66 "F3" 172.35 192.98 167.60 50.040 60.997 38.371 +67 "G3" 72.505 72.322 146.66 9.8731 9.2375 28.216 +68 "H3" 132.85 167.63 50.020 31.926 43.409 5.2962 +69 "I3" 99.822 132.27 193.48 18.889 24.530 52.235 +70 "J3" 158.78 88.817 87.144 36.271 22.167 11.952 +71 "K3" 146.32 156.61 192.38 34.281 37.060 50.573 +72 "L3" 30.978 30.641 29.826 2.4511 2.5353 2.0398 +73 "M3" 146.27 153.30 150.57 34.120 37.136 30.510 +74 "N3" 144.16 70.919 46.534 28.309 16.461 3.7229 +75 "O3" 85.091 72.947 144.27 12.851 10.508 27.052 +76 "P3" 122.91 131.12 67.881 24.532 27.910 7.4170 +77 "Q3" 140.27 116.77 178.48 29.800 23.719 40.761 +78 "R3" 73.020 103.31 46.082 11.420 17.249 4.2060 +79 "S3" 148.58 74.828 46.145 30.098 17.923 3.6411 +80 "T3" 92.676 106.61 179.17 15.102 16.455 41.548 +81 "U3" 89.067 149.36 56.522 16.816 29.880 6.2892 +82 "V3" 104.27 103.98 177.68 19.054 17.886 40.635 +83 "W3" 122.27 64.970 44.965 21.160 13.146 3.6418 +84 "X3" 190.80 157.08 167.65 56.827 44.647 36.033 +85 "Y3" 55.033 94.759 44.077 7.3224 13.350 4.3645 +86 "Z3" 157.08 85.576 87.558 34.447 20.515 11.595 +87 "2A3" 79.250 88.578 159.52 10.795 11.448 32.464 +88 "2B3" 108.15 127.71 55.172 20.617 25.691 5.5795 +89 "2C3" 78.102 75.847 150.05 11.126 10.174 28.914 +90 "2D3" 202.83 194.20 199.16 68.724 66.102 56.410 +91 "A4" 105.09 86.729 157.14 19.671 15.554 33.919 +92 "B4" 99.696 102.26 43.923 17.501 19.753 3.8498 +93 "C4" 107.26 130.81 190.72 21.509 25.734 51.674 +94 "D4" 178.30 141.51 75.719 51.958 42.451 9.1213 +95 "E4" 86.201 111.97 176.39 14.112 17.806 42.697 +96 "F4" 192.41 193.92 143.50 61.487 65.884 27.427 +97 "G4" 161.20 95.317 155.94 38.420 23.239 29.457 +98 "H4" 74.863 77.945 149.59 9.8759 9.7311 29.126 +99 "I4" 207.61 208.23 184.16 75.793 79.718 46.695 +100 "J4" 70.931 101.90 131.71 10.595 15.480 24.653 +101 "K4" 147.01 94.545 162.80 32.187 21.331 32.814 +102 "L4" 81.586 103.83 104.84 13.777 17.753 16.663 +103 "M4" 141.06 69.848 45.247 27.339 16.027 3.5603 +104 "N4" 90.494 151.07 150.65 16.922 28.995 29.336 +105 "O4" 55.294 41.016 63.313 6.3066 4.7610 6.9921 +106 "P4" 111.84 140.47 103.22 22.390 29.210 15.592 +107 "Q4" 144.45 93.249 162.31 30.657 20.369 32.268 +108 "R4" 105.31 104.82 101.31 19.152 19.807 15.592 +109 "S4" 79.325 137.68 48.973 13.948 25.671 5.2122 +110 "T4" 84.189 150.82 120.01 14.991 27.898 19.745 +111 "U4" 81.413 52.379 93.432 11.486 7.6381 12.484 +112 "V4" 76.459 77.531 42.048 10.749 11.899 3.2945 +113 "W4" 211.28 212.44 213.00 77.699 80.782 67.995 +114 "X4" 125.79 102.06 67.469 24.430 21.610 7.1800 +115 "Y4" 36.736 36.340 46.306 3.2104 3.1999 4.2513 +116 "Z4" 83.114 150.29 61.891 14.450 27.763 8.5197 +117 "2A4" 117.71 90.574 160.37 21.679 16.235 32.574 +118 "2B4" 89.463 153.87 72.494 15.737 29.267 10.078 +119 "2C4" 42.498 47.832 65.570 3.9226 4.4418 7.5674 +120 "2D4" 115.91 156.34 101.73 24.022 34.375 15.022 +121 "A5" 100.43 57.576 43.875 16.920 10.945 3.6233 +122 "B5" 139.57 140.52 191.37 32.876 32.373 51.547 +123 "C5" 106.24 157.82 63.346 23.454 37.144 7.5202 +124 "D5" 120.63 119.68 128.56 24.762 25.266 23.702 +125 "E5" 144.32 70.530 44.643 29.192 16.958 3.5359 +126 "F5" 112.12 164.88 139.23 23.640 37.186 26.447 +127 "G5" 103.37 136.87 47.413 20.387 28.842 4.7028 +128 "H5" 36.251 41.780 35.395 3.3636 4.0809 2.6833 +129 "I5" 111.24 162.80 164.26 23.272 35.820 35.198 +130 "J5" 143.56 87.562 156.55 30.642 19.573 30.103 +131 "K5" 109.54 163.06 164.19 22.753 35.416 35.064 +132 "L5" 79.627 52.133 45.354 11.209 7.8786 3.5144 +133 "M5" 92.456 152.33 153.19 17.513 29.721 30.234 +134 "N5" 34.714 33.013 32.281 2.9935 2.9559 2.2837 +135 "O5" 166.35 175.94 163.99 44.139 49.035 35.423 +136 "P5" 89.669 79.549 47.144 14.200 13.959 3.6761 +137 "Q5" 191.24 182.85 188.48 59.021 56.831 48.262 +138 "R5" 51.675 70.899 41.770 6.3401 9.2262 3.4989 +139 "S5" 170.53 177.54 173.76 45.700 49.818 40.124 +140 "T5" 63.890 93.942 45.687 9.3142 14.437 4.0636 +141 "U5" 30.168 29.299 28.940 2.3535 2.3975 1.9290 +142 "V5" 133.08 133.14 122.05 27.766 28.925 20.091 +143 "W5" 36.054 32.923 33.276 3.0887 2.9300 2.3596 +144 "X5" 61.314 111.77 45.755 8.7239 16.803 5.0276 +145 "Y5" 203.39 209.40 208.06 70.161 75.882 63.247 +146 "Z5" 76.353 77.670 109.77 11.191 11.244 16.654 +147 "2A5" 193.86 202.18 186.73 62.394 68.771 47.096 +148 "2B5" 84.630 73.965 145.61 12.640 10.459 27.333 +149 "2C5" 68.392 129.05 45.336 11.160 21.761 5.5099 +150 "2D5" 210.46 210.49 195.89 77.413 80.592 53.936 +151 "A6" 156.79 90.614 148.03 37.703 22.453 27.499 +152 "B6" 88.481 111.82 178.46 14.943 18.301 44.058 +153 "C6" 167.90 108.82 66.983 44.282 30.956 7.9185 +154 "D6" 66.578 110.85 54.360 10.440 18.144 6.5076 +155 "E6" 148.31 87.735 154.80 32.892 20.486 29.274 +156 "F6" 93.611 155.13 115.73 17.819 31.263 19.184 +157 "G6" 40.190 39.280 58.763 3.7468 3.6058 6.3752 +158 "H6" 170.89 152.59 147.19 45.907 41.132 28.818 +159 "I6" 46.469 44.545 75.326 4.4472 4.1158 9.1204 +160 "J6" 102.48 151.18 180.03 20.388 31.549 44.358 +161 "K6" 30.872 30.164 29.516 2.3970 2.4515 1.9961 +162 "L6" 83.294 137.00 98.315 14.323 24.343 14.536 +163 "M6" 30.722 30.150 29.446 2.3623 2.4293 1.9541 +164 "N6" 163.74 151.67 194.83 41.190 36.767 50.714 +165 "O6" 199.83 203.65 49.970 62.357 69.847 6.3069 +166 "P6" 77.512 86.873 159.07 10.124 10.811 31.915 +167 "Q6" 200.99 194.31 190.45 67.127 65.762 49.352 +168 "R6" 165.39 100.99 154.68 39.128 23.959 27.822 +169 "S6" 69.496 98.026 61.986 10.413 15.222 6.7952 +170 "T6" 167.68 124.93 146.98 41.195 30.074 26.292 +171 "U6" 62.706 68.483 60.211 8.4099 9.5591 6.5834 +172 "V6" 174.63 108.06 166.14 43.942 26.976 32.439 +173 "W6" 138.60 174.02 106.27 33.397 44.263 15.513 +174 "X6" 192.12 161.59 197.05 56.629 45.672 50.137 +175 "Y6" 71.207 70.503 63.173 10.198 10.583 6.9283 +176 "Z6" 171.42 121.85 182.26 42.782 29.822 40.386 +177 "2A6" 193.77 197.98 207.14 61.567 65.013 61.274 +178 "2B6" 117.80 82.965 151.94 21.335 15.115 28.916 +179 "2C6" 36.305 39.517 34.462 3.2203 3.7212 2.6005 +180 "2D6" 152.48 145.44 148.89 35.799 34.854 29.422 +181 "A7" 93.637 153.35 73.710 19.123 33.078 10.667 +182 "B7" 83.277 73.755 144.52 12.915 10.831 28.225 +183 "C7" 206.85 206.70 197.33 77.518 80.587 57.622 +184 "D7" 77.454 73.349 146.72 11.348 10.154 28.703 +185 "E7" 70.809 132.64 47.023 12.442 24.254 5.6475 +186 "F7" 91.049 88.345 163.10 15.345 13.969 34.910 +187 "G7" 177.87 190.87 53.018 52.703 61.988 5.9513 +188 "H7" 75.960 87.720 159.98 9.9056 10.888 32.881 +189 "I7" 199.48 192.77 181.55 67.471 66.483 44.705 +190 "J7" 64.713 68.090 67.610 8.8426 9.6268 8.1730 +191 "K7" 193.08 175.48 139.54 61.925 56.855 24.968 +192 "L7" 75.430 87.876 159.79 9.6349 10.726 32.427 +193 "M7" 133.24 173.17 56.742 32.435 45.157 6.1480 +194 "N7" 148.49 75.098 46.216 30.427 18.146 3.6270 +195 "O7" 97.134 97.177 86.559 16.928 17.695 11.911 +196 "P7" 191.20 160.30 54.685 56.094 48.894 4.9467 +197 "Q7" 80.068 80.251 125.32 11.934 11.778 20.573 +198 "R7" 83.368 147.19 55.358 15.285 28.434 6.3346 +199 "S7" 37.747 44.719 36.907 3.5054 4.3615 2.7830 +200 "T7" 146.52 175.26 205.50 35.099 44.589 58.771 +201 "U7" 133.97 82.941 152.98 26.155 17.005 28.079 +202 "V7" 63.182 103.22 97.125 8.9086 14.924 14.071 +203 "W7" 144.22 147.07 76.384 30.611 33.536 8.6858 +204 "X7" 212.78 213.19 211.89 79.113 81.784 66.503 +205 "Y7" 77.896 86.298 158.37 10.240 10.764 31.229 +206 "Z7" 71.313 133.52 47.389 11.976 23.218 5.4228 +207 "2A7" 75.926 78.650 151.98 9.9976 9.7574 28.929 +208 "2B7" 118.08 168.98 98.781 25.572 39.297 14.262 +209 "2C7" 207.34 198.34 43.623 66.257 69.908 5.8960 +210 "2D7" 92.639 108.26 179.66 14.893 16.603 41.626 +211 "A8" 69.904 137.36 58.325 12.100 24.359 8.4071 +212 "B8" 167.09 144.55 49.599 42.436 39.900 4.7260 +213 "C8" 111.10 78.672 121.83 20.574 15.216 20.136 +214 "D8" 74.340 141.34 56.829 12.701 25.255 8.1803 +215 "E8" 104.13 74.055 141.65 18.324 13.039 26.409 +216 "F8" 90.075 154.61 90.911 16.724 30.035 13.212 +217 "G8" 36.341 33.896 36.868 3.3200 3.1831 3.0291 +218 "H8" 101.65 159.66 134.07 20.304 33.570 24.443 +219 "I8" 34.216 33.499 37.712 2.9169 2.9009 3.0168 +220 "J8" 174.41 165.56 173.38 48.038 46.099 39.891 +221 "K8" 46.252 66.300 42.397 5.2241 8.0427 3.5985 +222 "L8" 152.69 184.12 182.69 38.619 50.368 44.407 +223 "M8" 30.240 29.863 28.939 2.3428 2.3959 1.9273 +224 "N8" 35.593 35.467 34.190 3.1956 3.3116 2.6415 +225 "O8" 71.728 71.553 70.937 10.494 10.847 8.8081 +226 "P8" 115.92 116.10 114.68 22.233 23.005 18.548 +227 "Q8" 159.85 160.38 159.13 39.317 40.778 33.056 +228 "R8" 196.60 197.21 197.12 63.147 65.480 53.862 +229 "S8" 137.57 112.53 140.33 28.252 23.514 24.400 +230 "T8" 80.940 142.13 50.952 14.520 26.909 5.4756 +231 "U8" 99.365 133.93 196.43 18.057 24.054 51.817 +232 "V8" 30.957 30.566 29.813 2.3402 2.3911 1.9209 +233 "W8" 212.09 210.69 210.55 77.838 79.255 64.883 +234 "X8" 90.920 71.799 46.751 14.232 12.342 3.5677 +235 "Y8" 137.72 177.30 175.40 31.451 43.594 39.472 +236 "Z8" 39.524 49.911 38.685 3.8429 5.0881 3.0661 +237 "2A8" 130.39 176.13 127.05 27.844 41.491 21.140 +238 "2B8" 31.904 31.437 30.690 2.4921 2.5648 2.0613 +239 "2C8" 149.77 158.18 196.00 34.635 36.777 50.964 +240 "2D8" 30.719 29.824 29.600 2.3436 2.3905 1.9440 +241 "A9" 160.64 188.72 135.75 46.811 59.109 25.406 +242 "B9" 151.09 113.48 161.82 35.695 26.905 33.928 +243 "C9" 56.378 101.12 44.028 8.0578 15.313 4.8058 +244 "D9" 200.86 192.61 183.06 70.562 68.540 46.575 +245 "E9" 77.639 89.149 161.20 10.633 11.656 33.787 +246 "F9" 183.43 148.52 132.23 54.113 43.360 23.933 +247 "G9" 53.868 83.869 77.703 7.1200 11.358 10.328 +248 "H9" 144.68 93.693 163.06 31.237 20.786 32.756 +249 "I9" 80.625 147.05 117.46 14.469 27.174 19.553 +250 "J9" 82.612 53.093 45.342 11.813 8.1727 3.4750 +251 "K9" 179.05 178.11 205.03 51.613 51.265 59.093 +252 "L9" 68.256 128.21 45.397 11.232 21.889 5.3482 +253 "M9" 30.122 29.559 28.786 2.3389 2.3932 1.9205 +254 "N9" 44.132 44.030 43.113 4.6543 4.8363 3.9004 +255 "O9" 77.603 77.496 77.212 11.973 12.444 10.082 +256 "P9" 123.38 123.35 123.35 24.548 25.410 20.720 +257 "Q9" 167.61 168.12 167.11 43.270 44.842 36.215 +258 "R9" 202.61 204.17 205.53 68.113 71.034 59.864 +259 "S9" 152.34 81.269 59.657 31.468 18.903 5.4734 +260 "T9" 36.525 39.233 37.120 3.2297 3.6435 2.9170 +261 "U9" 147.79 112.59 105.57 31.779 25.042 15.321 +262 "V9" 128.85 175.42 85.449 30.098 43.673 10.856 +263 "W9" 202.12 182.11 203.04 65.360 57.273 55.175 +264 "X9" 58.841 111.22 46.014 7.8261 15.682 5.0934 +265 "Y9" 150.27 74.574 46.780 30.151 17.603 3.5424 +266 "Z9" 91.373 72.814 142.15 14.169 10.872 25.545 +267 "2A9" 178.42 178.87 165.68 49.740 51.961 35.295 +268 "2B9" 110.21 82.066 150.83 19.293 14.167 28.533 +269 "2C9" 115.57 141.00 82.227 23.305 29.469 10.465 +270 "2D9" 120.44 87.308 156.62 22.420 16.254 30.792 +271 "A10" 54.278 98.104 59.100 7.4766 14.316 6.7672 +272 "B10" 141.49 142.92 50.130 30.693 34.185 4.8132 +273 "C10" 69.545 135.98 93.417 11.568 23.235 13.773 +274 "D10" 30.772 30.009 29.471 2.4307 2.4999 2.0171 +275 "E10" 140.52 89.479 159.03 30.140 19.949 31.751 +276 "F10" 88.149 135.62 165.23 15.810 25.353 37.521 +277 "G10" 30.508 30.075 29.389 2.4272 2.4936 1.9887 +278 "H10" 75.794 144.13 86.030 12.549 25.096 11.562 +279 "I10" 29.881 29.286 28.915 2.3402 2.3788 1.9223 +280 "J10" 78.427 139.08 135.09 13.387 24.235 23.958 +281 "K10" 127.69 103.24 52.122 25.478 22.853 4.3681 +282 "L10" 47.518 38.484 37.887 5.0366 4.2550 2.8902 +283 "M10" 30.202 29.466 28.978 2.3374 2.3915 1.9194 +284 "N10" 50.671 50.438 49.901 5.8942 6.1054 4.9143 +285 "O10" 84.087 84.218 84.130 13.462 14.013 11.428 +286 "P10" 130.92 131.27 131.19 27.055 28.014 23.007 +287 "Q10" 174.24 174.94 173.31 47.406 49.169 39.386 +288 "R10" 208.46 209.75 212.17 73.974 77.043 65.729 +289 "S10" 61.440 61.759 68.112 7.8358 8.0794 7.9176 +290 "T10" 189.59 154.63 195.61 54.395 42.563 48.165 +291 "U10" 70.065 139.76 58.155 11.113 22.841 7.7084 +292 "V10" 34.382 38.877 37.374 2.9394 3.4387 2.9247 +293 "W10" 81.185 148.91 88.683 13.284 25.973 11.867 +294 "X10" 31.337 30.706 30.647 2.4768 2.5120 2.1182 +295 "Y10" 132.10 124.54 122.36 27.102 26.481 19.829 +296 "Z10" 128.86 77.259 44.848 23.978 16.698 3.6586 +297 "2A10" 121.07 144.71 145.24 24.659 30.178 27.108 +298 "2B10" 91.404 54.498 76.524 13.618 8.1445 8.4106 +299 "2C10" 122.45 129.19 129.52 24.412 26.496 22.533 +300 "2D10" 52.091 43.712 85.349 5.2897 4.2252 10.803 +301 "A11" 95.121 56.945 109.13 15.662 9.9371 16.757 +302 "B11" 49.247 84.978 41.595 6.3528 11.756 4.1276 +303 "C11" 201.38 188.28 201.57 70.247 65.054 58.834 +304 "D11" 165.99 106.71 48.883 42.904 30.283 4.3741 +305 "E11" 142.45 151.87 140.77 33.675 37.292 27.259 +306 "F11" 59.895 43.373 70.686 7.3260 5.3398 8.4321 +307 "G11" 185.60 179.80 175.52 56.748 56.026 41.441 +308 "H11" 62.810 62.001 39.464 8.1585 8.7147 3.0001 +309 "I11" 182.38 181.99 177.01 54.512 56.195 42.466 +310 "J11" 44.613 62.579 56.523 4.9736 7.2275 6.1574 +311 "K11" 177.26 171.26 154.02 50.413 50.352 29.675 +312 "L11" 81.706 58.921 119.57 11.783 8.3671 18.993 +313 "M11" 30.648 29.769 29.464 2.4004 2.4632 1.9865 +314 "N11" 56.534 56.324 55.689 7.0502 7.2979 5.9348 +315 "O11" 89.911 89.936 88.980 15.157 15.663 12.643 +316 "P11" 140.77 141.41 140.88 30.809 31.935 26.037 +317 "Q11" 179.84 180.21 178.58 51.029 52.827 42.179 +318 "R11" 212.60 213.84 215.53 78.892 82.077 69.152 +319 "S11" 66.493 66.184 65.558 9.0391 9.3614 7.5795 +320 "T11" 187.32 160.61 146.99 54.688 46.067 27.270 +321 "U11" 59.842 44.929 41.517 7.0672 5.5203 3.1542 +322 "V11" 100.71 151.70 177.40 19.018 30.251 40.808 +323 "W11" 32.433 32.983 31.555 2.6438 2.7813 2.1741 +324 "X11" 103.41 161.56 150.03 20.294 33.254 28.954 +325 "Y11" 49.930 46.756 84.028 4.7917 4.3367 10.461 +326 "Z11" 157.24 187.57 185.20 39.678 51.335 44.730 +327 "2A11" 69.840 130.51 46.639 11.397 22.075 5.4606 +328 "2B11" 164.73 190.77 189.92 43.396 54.386 47.692 +329 "2C11" 67.660 57.565 50.639 9.0264 8.0855 4.5632 +330 "2D11" 146.88 73.255 46.894 29.263 17.239 3.6542 +331 "A12" 149.18 183.06 84.464 42.435 55.238 11.960 +332 "B12" 72.446 71.794 146.17 10.244 9.5241 28.550 +333 "C12" 111.58 163.80 82.344 25.557 39.490 11.397 +334 "D12" 67.115 62.023 67.669 9.5983 9.1448 8.3283 +335 "E12" 202.25 206.59 144.16 71.285 77.444 27.463 +336 "F12" 142.52 142.52 149.46 32.592 33.399 30.058 +337 "G12" 52.218 46.843 96.005 5.1430 4.3541 13.182 +338 "H12" 95.301 157.62 128.66 18.517 32.087 22.562 +339 "I12" 58.804 42.199 45.333 6.9977 5.1440 3.8014 +340 "J12" 201.67 207.01 112.57 69.246 76.042 17.844 +341 "K12" 76.878 56.433 113.86 10.642 7.6407 17.593 +342 "L12" 110.43 164.87 121.89 21.927 35.477 19.681 +343 "M12" 31.073 30.502 29.828 2.4287 2.4921 1.9949 +344 "N12" 60.863 60.999 60.221 7.9937 8.3172 6.7360 +345 "O12" 97.436 97.414 96.425 17.120 17.761 14.285 +346 "P12" 146.96 147.76 147.68 33.242 34.486 28.221 +347 "Q12" 186.04 186.49 184.52 55.136 57.000 45.303 +348 "R12" 217.03 217.69 217.80 84.047 87.070 71.496 +349 "S12" 173.81 166.67 164.48 46.799 45.618 34.284 +350 "T12" 61.998 59.133 126.43 6.6921 6.0185 19.773 +351 "U12" 133.08 178.53 107.01 31.583 45.365 15.646 +352 "V12" 159.59 92.307 67.569 35.975 22.808 7.0470 +353 "W12" 92.823 93.091 102.67 15.632 16.004 15.333 +354 "X12" 153.31 79.910 48.385 32.188 19.569 3.7849 +355 "Y12" 76.169 77.765 152.48 9.9981 9.6287 28.171 +356 "Z12" 80.867 145.82 55.209 14.429 27.348 6.4901 +357 "2A12" 88.726 84.091 155.13 13.822 12.446 29.936 +358 "2B12" 201.37 208.14 195.53 68.261 74.431 52.067 +359 "2C12" 32.004 31.705 30.813 2.4685 2.5621 2.0287 +360 "2D12" 135.53 145.08 187.78 28.798 30.974 45.549 +361 "A13" 86.415 69.301 138.07 14.129 10.884 26.286 +362 "B13" 104.58 136.42 46.559 21.280 29.662 4.6515 +363 "C13" 147.82 79.114 100.32 32.064 17.966 13.604 +364 "D13" 75.334 85.157 157.26 9.9611 10.733 32.277 +365 "E13" 178.81 179.96 148.24 51.845 54.927 28.181 +366 "F13" 55.482 72.327 100.16 6.3441 8.5421 15.068 +367 "G13" 200.09 199.75 184.43 68.699 71.452 46.387 +368 "H13" 76.688 84.710 151.41 10.374 10.902 29.169 +369 "I13" 129.73 107.35 52.022 26.203 23.997 4.3858 +370 "J13" 119.03 160.66 198.42 25.753 36.554 54.373 +371 "K13" 56.473 50.032 106.16 5.9068 4.9157 15.287 +372 "L13" 153.18 106.56 46.936 35.348 27.270 4.1933 +373 "M13" 32.264 31.978 31.289 2.6154 2.7053 2.1626 +374 "N13" 66.470 66.520 66.246 9.3637 9.6843 7.8391 +375 "O13" 105.28 105.86 104.76 19.359 20.106 16.147 +376 "P13" 153.75 154.63 154.12 36.624 37.957 30.671 +377 "Q13" 192.03 192.25 191.27 59.859 61.861 49.702 +378 "R13" 221.68 221.89 221.96 89.957 93.025 75.604 +379 "S13" 104.20 75.856 145.33 17.613 12.665 26.369 +380 "T13" 121.87 124.18 72.370 22.969 25.114 7.7873 +381 "U13" 91.392 55.886 72.021 13.623 8.3610 7.6135 +382 "V13" 193.01 176.53 161.70 59.661 54.433 33.140 +383 "W13" 97.047 61.496 44.638 15.045 10.609 3.4373 +384 "X13" 124.18 171.27 172.48 26.676 39.190 37.659 +385 "Y13" 100.95 103.55 45.932 16.770 18.831 3.7976 +386 "Z13" 98.719 76.722 108.03 16.243 13.004 15.620 +387 "2A13" 193.99 204.68 205.71 62.079 69.145 59.254 +388 "2B13" 77.619 94.368 167.50 9.8300 11.508 34.315 +389 "2C13" 91.512 53.191 50.701 13.378 8.4024 4.1065 +390 "2D13" 76.609 104.98 135.45 11.706 16.228 24.708 +391 "A14" 129.84 79.131 147.61 27.260 17.709 28.446 +392 "B14" 74.731 86.884 158.53 10.007 11.116 33.309 +393 "C14" 178.45 194.65 198.02 55.170 63.826 56.969 +394 "D14" 122.80 65.789 71.805 22.474 12.791 7.8220 +395 "E14" 99.529 101.15 66.691 17.833 19.340 7.6068 +396 "F14" 133.73 68.160 43.803 25.508 15.387 3.5019 +397 "G14" 130.31 174.28 137.87 28.674 42.244 25.294 +398 "H14" 110.49 77.413 145.63 20.013 14.167 27.201 +399 "I14" 30.999 29.764 29.587 2.4079 2.4331 1.9867 +400 "J14" 120.14 114.13 178.99 23.527 21.066 41.374 +401 "K14" 128.29 64.544 74.117 23.203 12.509 8.0121 +402 "L14" 176.70 157.34 183.40 48.486 42.511 43.112 +403 "M14" 59.777 105.00 45.141 8.6031 15.926 4.6200 +404 "N14" 182.00 181.11 190.30 53.107 53.884 48.977 +405 "O14" 42.651 40.749 62.042 3.9836 3.7404 6.5852 +406 "P14" 151.32 150.31 182.91 35.517 35.068 43.001 +407 "Q14" 162.51 94.932 125.82 37.782 22.314 19.042 +408 "R14" 99.745 94.301 93.467 17.467 17.105 13.104 +409 "S14" 107.25 159.78 58.090 22.370 35.508 5.9931 +410 "T14" 128.01 72.369 117.84 23.886 13.985 16.868 +411 "U14" 107.76 101.18 90.766 19.591 19.252 12.172 +412 "V14" 204.14 190.16 48.644 63.345 63.812 5.6645 +413 "W14" 82.597 65.626 44.970 12.028 10.481 3.3856 +414 "X14" 166.39 166.20 175.82 42.635 43.420 39.912 +415 "Y14" 100.69 152.17 51.384 19.856 32.192 5.1431 +416 "Z14" 91.650 100.20 90.746 15.570 17.641 12.711 +417 "2A14" 143.62 91.243 162.04 29.733 19.495 31.105 +418 "2B14" 214.71 215.34 214.31 81.209 84.285 67.959 +419 "2C14" 101.32 87.875 161.74 16.972 13.897 32.504 +420 "2D14" 105.18 138.75 68.497 20.262 27.906 7.7177 +421 "A15" 124.84 68.758 114.78 24.922 14.319 17.652 +422 "B15" 99.929 150.22 167.53 20.394 32.266 39.177 +423 "C15" 121.25 165.78 57.133 28.847 42.042 6.3345 +424 "D15" 129.49 121.04 130.58 27.579 26.553 23.681 +425 "E15" 161.27 95.254 123.97 38.874 23.290 19.357 +426 "F15" 148.20 174.03 142.22 36.703 46.352 27.027 +427 "G15" 150.41 98.923 167.42 34.061 22.803 34.531 +428 "H15" 75.180 91.615 158.04 10.113 11.921 31.879 +429 "I15" 196.22 179.25 172.32 64.423 58.008 39.281 +430 "J15" 66.558 62.105 60.696 9.4542 9.1717 6.7120 +431 "K15" 174.25 177.65 112.40 48.073 52.062 16.154 +432 "L15" 116.33 112.29 162.02 22.225 20.657 33.169 +433 "M15" 133.68 171.46 73.038 32.410 43.840 8.6168 +434 "N15" 102.47 146.49 198.15 19.932 29.141 53.896 +435 "O15" 64.715 46.574 43.032 8.2354 6.1612 3.2448 +436 "P15" 105.91 159.08 164.78 21.186 33.689 34.860 +437 "Q15" 34.379 33.754 36.003 2.8839 2.9372 2.7235 +438 "R15" 102.62 61.271 119.89 16.647 10.677 18.389 +439 "S15" 159.62 86.224 48.021 35.874 22.454 3.7685 +440 "T15" 95.611 158.57 127.45 18.024 31.495 21.231 +441 "U15" 133.03 87.140 157.87 26.027 17.635 30.172 +442 "V15" 48.894 77.368 43.484 5.7623 9.6302 3.8733 +443 "W15" 182.54 191.20 178.40 53.522 58.991 41.376 +444 "X15" 126.00 95.308 166.74 23.991 17.693 34.060 +445 "Y15" 38.376 39.986 33.590 3.5595 3.8688 2.3978 +446 "Z15" 148.30 148.94 147.37 34.055 35.265 28.241 +447 "2A15" 146.55 75.055 68.429 29.379 16.826 7.3609 +448 "2B15" 71.706 70.645 144.63 9.2107 8.5579 25.691 +449 "2C15" 133.02 80.816 44.452 25.707 18.129 3.6532 +450 "2D15" 82.777 113.54 117.52 13.875 19.568 19.948 +451 "A16" 147.43 75.104 45.417 32.441 19.582 3.7464 +452 "B16" 162.22 145.05 108.87 43.738 40.362 16.554 +453 "C16" 43.273 69.681 61.261 4.9159 8.3065 7.2559 +454 "D16" 154.15 106.72 65.606 37.197 27.832 7.4910 +455 "E16" 149.19 148.83 193.98 36.691 35.876 51.695 +456 "F16" 157.80 111.38 47.573 38.836 30.036 4.3338 +457 "G16" 100.61 79.449 149.13 17.555 13.363 28.888 +458 "H16" 206.92 207.61 211.44 75.466 77.836 67.216 +459 "I16" 97.895 82.272 66.348 16.954 15.112 7.2992 +460 "J16" 172.80 178.46 82.595 47.072 52.200 10.669 +461 "K16" 183.90 191.17 190.75 55.962 60.759 50.287 +462 "L16" 75.048 76.021 151.02 10.165 9.7715 28.705 +463 "M16" 159.42 88.282 47.938 36.859 23.500 3.8297 +464 "N16" 133.24 176.09 150.50 29.735 43.076 29.229 +465 "O16" 59.749 48.251 40.198 7.3545 6.2503 2.9745 +466 "P16" 171.06 168.69 161.58 46.114 46.965 33.568 +467 "Q16" 53.260 54.841 37.700 6.2218 6.8107 2.7776 +468 "R16" 147.03 76.735 66.424 29.663 17.214 6.8286 +469 "S16" 63.206 78.809 107.93 8.0381 10.138 16.410 +470 "T16" 150.22 77.352 47.226 31.088 18.734 3.6263 +471 "U16" 97.824 159.49 134.64 18.911 32.215 23.899 +472 "V16" 133.39 81.567 151.23 26.145 16.883 27.363 +473 "W16" 155.32 82.024 48.477 33.705 20.761 3.7986 +474 "X16" 81.301 147.86 56.013 14.361 27.487 7.1744 +475 "Y16" 141.53 112.75 178.08 29.882 22.982 39.138 +476 "Z16" 31.556 30.196 30.075 2.4233 2.4412 1.9648 +477 "2A16" 166.04 149.78 129.15 42.519 39.188 21.270 +478 "2B16" 53.939 48.402 100.70 5.2349 4.4461 13.823 +479 "2C16" 152.96 83.435 68.500 32.492 19.465 7.0806 +480 "2D16" 141.97 181.00 131.63 33.454 46.863 22.481 +481 "A17" 93.002 152.57 112.99 18.355 31.722 19.048 +482 "B17" 48.562 44.595 81.595 4.8626 4.2833 10.526 +483 "C17" 155.24 137.12 108.13 39.631 36.092 16.781 +484 "D17" 37.723 54.820 48.270 3.8471 5.8319 4.8962 +485 "E17" 163.04 158.68 133.73 43.491 44.349 22.904 +486 "F17" 155.10 81.151 47.477 35.028 21.444 3.8305 +487 "G17" 119.76 108.26 175.73 23.826 20.302 40.464 +488 "H17" 155.83 188.69 108.40 44.211 56.679 16.435 +489 "I17" 54.125 49.417 43.252 6.5115 6.2807 3.6004 +490 "J17" 146.89 182.65 155.76 35.464 48.530 31.500 +491 "K17" 148.71 77.345 50.119 31.217 18.833 4.2081 +492 "L17" 53.925 41.854 39.291 6.1796 5.0138 3.0160 +493 "M17" 105.46 156.83 167.45 21.355 33.511 36.981 +494 "N17" 149.16 79.222 103.08 31.382 17.339 13.539 +495 "O17" 109.98 107.89 138.78 20.515 20.076 24.934 +496 "P17" 151.99 78.765 47.620 32.143 19.447 3.7592 +497 "Q17" 195.13 169.06 200.08 60.501 50.532 52.708 +498 "R17" 73.599 136.55 49.271 12.657 24.420 5.6873 +499 "S17" 37.757 33.718 34.938 3.4355 3.1639 2.5372 +500 "T17" 132.61 142.77 197.68 28.192 29.771 51.322 +501 "U17" 181.82 145.93 103.48 52.660 42.651 15.019 +502 "V17" 204.10 203.91 210.35 69.823 71.393 63.731 +503 "W17" 175.82 179.36 52.229 44.995 50.413 5.2421 +504 "X17" 155.69 156.50 143.88 37.401 38.967 26.702 +505 "Y17" 65.731 44.495 80.654 8.0339 5.5483 9.9052 +506 "Z17" 67.930 138.21 88.916 10.382 21.829 11.599 +507 "2A17" 156.40 87.866 68.881 34.325 21.131 7.2263 +508 "2B17" 68.870 68.990 41.254 9.1863 9.9839 3.1512 +509 "2C17" 209.60 202.66 207.60 75.534 73.388 61.922 +510 "2D17" 108.97 87.062 152.98 19.258 14.916 29.290 +511 "A18" 200.70 204.40 197.90 74.089 78.770 59.424 +512 "B18" 164.93 117.44 177.68 42.903 30.204 40.715 +513 "C18" 61.227 72.827 56.013 8.7363 10.837 6.0872 +514 "D18" 204.51 199.19 195.95 75.509 74.636 56.066 +515 "E18" 73.692 73.322 148.06 10.413 9.8011 28.727 +516 "F18" 68.313 128.24 45.392 11.836 22.861 5.4226 +517 "G18" 131.14 85.288 152.52 26.954 18.177 29.358 +518 "H18" 89.609 153.68 93.128 16.220 29.699 13.154 +519 "I18" 30.179 29.676 28.922 2.3647 2.3980 1.9090 +520 "J18" 208.65 210.69 209.48 77.786 81.283 65.463 +521 "K18" 88.863 70.346 63.498 14.363 11.898 6.7644 +522 "L18" 197.92 177.16 54.602 60.378 57.128 5.2726 +523 "M18" 143.55 91.470 162.00 30.554 20.123 31.743 +524 "N18" 121.99 131.52 122.44 24.748 27.645 20.451 +525 "O18" 172.04 115.00 91.328 44.929 31.003 12.389 +526 "P18" 81.187 74.923 148.64 11.881 10.425 27.990 +527 "Q18" 117.91 169.48 101.12 25.737 39.690 14.823 +528 "R18" 183.93 145.62 52.297 52.300 42.856 4.6545 +529 "S18" 55.452 105.38 65.438 7.2126 14.429 7.1944 +530 "T18" 211.11 208.92 210.90 77.679 78.425 65.193 +531 "U18" 177.41 124.39 134.00 47.084 32.209 22.319 +532 "V18" 53.506 90.891 78.889 6.6683 11.848 10.189 +533 "W18" 197.65 205.13 206.81 65.207 70.970 60.729 +534 "X18" 51.396 86.860 43.674 6.2806 11.330 4.1095 +535 "Y18" 193.58 175.18 113.92 60.571 56.044 16.070 +536 "Z18" 96.313 103.94 178.60 15.673 16.045 40.153 +537 "2A18" 168.53 106.08 128.73 41.178 25.901 19.845 +538 "2B18" 85.496 104.15 136.89 13.693 16.674 24.407 +539 "2C18" 208.09 210.26 179.31 74.223 78.952 41.733 +540 "2D18" 161.94 92.492 50.116 38.135 24.817 4.1395 +541 "A19" 156.71 112.54 101.12 39.239 29.094 15.479 +542 "B19" 42.513 58.501 40.536 4.7416 7.0454 3.4644 +543 "C19" 172.17 152.13 143.40 49.395 43.657 28.522 +544 "D19" 159.73 183.13 54.703 42.332 52.372 5.7052 +545 "E19" 119.21 105.48 95.518 24.242 22.424 14.026 +546 "F19" 30.235 29.764 29.269 2.4551 2.5226 2.0256 +547 "G19" 88.689 134.99 136.69 16.677 25.667 25.825 +548 "H19" 86.392 53.901 45.566 13.124 8.8453 3.5763 +549 "I19" 126.88 158.15 160.78 28.527 37.076 34.358 +550 "J19" 120.42 79.125 64.241 22.891 16.490 6.9749 +551 "K19" 108.34 160.80 164.56 22.666 35.279 35.631 +552 "L19" 49.327 39.952 38.592 5.4212 4.5484 2.9627 +553 "M19" 67.917 128.27 44.976 11.199 21.925 5.4425 +554 "N19" 127.84 62.080 45.945 22.708 12.897 3.6335 +555 "O19" 74.380 138.45 130.11 12.507 23.738 22.498 +556 "P19" 30.060 29.337 28.817 2.3442 2.3896 1.9267 +557 "Q19" 147.97 73.539 46.480 30.303 17.749 3.5777 +558 "R19" 75.153 76.608 151.15 10.104 9.7374 28.448 +559 "S19" 78.339 144.41 52.936 13.901 26.685 6.3873 +560 "T19" 31.312 30.556 30.767 2.4391 2.4780 2.0610 +561 "U19" 169.32 177.98 203.35 45.972 49.473 57.247 +562 "V19" 44.471 72.376 45.634 4.8275 8.3485 3.9886 +563 "W19" 199.02 205.39 55.979 63.154 70.855 7.5811 +564 "X19" 90.125 81.954 73.039 14.863 14.166 8.5770 +565 "Y19" 207.33 211.44 212.22 74.340 78.986 66.286 +566 "Z19" 182.95 126.85 175.69 49.996 33.344 36.894 +567 "2A19" 77.857 90.598 163.13 10.165 11.287 33.081 +568 "2B19" 202.16 204.23 49.052 62.642 69.515 6.2139 +569 "2C19" 162.94 96.440 68.740 38.429 24.741 7.3479 +570 "2D19" 83.952 84.116 160.97 12.944 12.283 32.608 +END_DATA diff --git a/ref/CMP_Digital_Target-4.ti2 b/ref/CMP_Digital_Target-4.ti2 new file mode 100644 index 0000000..8cc38ea --- /dev/null +++ b/ref/CMP_Digital_Target-4.ti2 @@ -0,0 +1,601 @@ +CTI2 + +DESCRIPTOR "Argyll Calibration Target chart information 2 for Christopher Metarie Digital Target 4" +ORIGINATOR "Argyll printtarg" +CREATED "Wed Sep 12 00:02:26 2007" +KEYWORD "TARGET_INSTRUMENT" +TARGET_INSTRUMENT "GretagMacbeth i1 Pro" +KEYWORD "ACCURATE_EXPECTED_VALUES" +ACCURATE_EXPECTED_VALUES "true" +KEYWORD "COLOR_REP" +COLOR_REP "RGB" +KEYWORD "STEPS_IN_PASS" +STEPS_IN_PASS "30" +KEYWORD "PASSES_IN_STRIPS2" +PASSES_IN_STRIPS2 "19" +KEYWORD "STRIP_INDEX_PATTERN" +STRIP_INDEX_PATTERN "0-9,@-9,@-9;1-999" +KEYWORD "PATCH_INDEX_PATTERN" +PATCH_INDEX_PATTERN "A-Z, 2-9" +KEYWORD "INDEX_ORDER" +INDEX_ORDER "PATCH_THEN_STRIP" + +KEYWORD "SAMPLE_LOC" +NUMBER_OF_FIELDS 8 +BEGIN_DATA_FORMAT +SAMPLE_ID SAMPLE_LOC RGB_R RGB_G RGB_B XYZ_X XYZ_Y XYZ_Z +END_DATA_FORMAT + +NUMBER_OF_SETS 570 +BEGIN_DATA +1 "A1" 106.60 73.896 140.50 19.991 14.120 27.886 +2 "B1" 101.22 157.76 91.298 19.926 34.054 14.005 +3 "C1" 56.474 54.712 116.20 6.2319 5.6339 19.078 +4 "D1" 142.23 143.96 106.67 32.785 35.198 16.672 +5 "E1" 161.58 92.303 143.82 38.996 22.658 25.805 +6 "F1" 90.405 96.497 94.153 16.011 17.612 14.561 +7 "G1" 163.39 98.124 88.178 39.496 24.997 12.003 +8 "H1" 63.278 55.370 115.21 7.4905 6.2468 18.358 +9 "I1" 71.385 133.64 49.363 11.987 23.286 6.5928 +10 "J1" 97.757 75.383 143.28 16.591 12.444 27.331 +11 "K1" 194.49 193.52 200.39 63.038 64.179 58.403 +12 "L1" 43.729 37.037 36.612 4.3513 3.8393 2.7750 +13 "M1" 128.36 143.53 178.51 27.386 30.873 42.527 +14 "N1" 136.71 176.12 173.90 31.789 44.281 40.439 +15 "O1" 190.25 190.03 173.26 59.453 61.985 40.335 +16 "P1" 139.89 69.074 45.054 26.783 15.713 3.5833 +17 "Q1" 34.433 40.188 37.667 3.0238 3.6843 3.0876 +18 "R1" 87.362 153.04 89.833 15.462 28.885 12.776 +19 "S1" 124.79 84.048 151.84 23.694 16.421 29.352 +20 "T1" 201.42 206.76 79.283 65.900 73.381 11.377 +21 "U1" 59.875 104.70 93.370 8.3333 15.036 13.749 +22 "V1" 205.39 208.60 159.63 72.416 77.985 33.423 +23 "W1" 91.572 136.12 167.03 16.393 25.254 38.122 +24 "X1" 30.336 29.306 28.957 2.3144 2.3581 1.9303 +25 "Y1" 132.60 110.17 107.91 27.102 23.276 16.813 +26 "Z1" 32.956 33.215 31.185 2.6994 2.8850 2.2332 +27 "2A1" 70.282 129.32 46.946 10.757 20.588 4.8216 +28 "2B1" 159.00 173.65 202.91 40.765 45.919 58.857 +29 "2C1" 121.19 88.150 161.84 22.864 16.381 33.839 +30 "2D1" 136.59 101.50 125.83 28.289 21.404 20.483 +31 "A2" 75.414 80.525 150.43 10.412 10.567 30.978 +32 "B2" 128.64 63.027 42.872 24.139 14.085 3.5857 +33 "C2" 101.62 116.40 166.26 19.473 21.752 38.376 +34 "D2" 129.62 78.772 146.55 26.280 16.991 28.035 +35 "E2" 164.20 144.75 82.589 42.573 39.671 9.6556 +36 "F2" 96.904 110.83 179.21 17.113 18.705 43.690 +37 "G2" 157.24 84.071 46.359 35.850 22.548 3.8554 +38 "H2" 84.439 70.424 140.26 13.037 10.392 26.425 +39 "I2" 81.661 147.44 58.864 14.946 28.262 8.1825 +40 "J2" 35.433 35.856 32.072 3.1780 3.3914 2.3047 +41 "K2" 150.66 144.08 140.58 35.880 35.178 26.683 +42 "L2" 158.35 93.379 154.74 36.434 22.147 28.386 +43 "M2" 100.38 93.492 99.897 17.689 17.022 15.072 +44 "N2" 158.93 93.968 95.921 36.396 23.022 13.623 +45 "O2" 102.60 137.21 171.09 19.884 26.988 39.544 +46 "P2" 74.932 50.703 44.902 10.294 7.4271 3.4839 +47 "Q2" 115.12 165.78 166.70 24.415 37.008 36.288 +48 "R2" 157.97 92.663 150.58 36.078 21.682 26.898 +49 "S2" 83.913 88.787 161.27 12.232 12.247 33.412 +50 "T2" 72.772 133.20 48.154 12.486 23.920 5.4357 +51 "U2" 155.64 177.45 175.23 38.913 47.091 40.794 +52 "V2" 65.311 50.797 44.712 8.3779 6.8387 3.7119 +53 "W2" 30.304 29.389 28.630 2.3401 2.3804 1.9157 +54 "X2" 98.383 112.57 76.501 17.501 20.678 9.7225 +55 "Y2" 196.95 176.56 81.174 60.324 56.490 9.7029 +56 "Z2" 106.87 76.461 64.020 18.340 14.257 6.9452 +57 "2A2" 149.29 180.57 55.756 39.051 50.700 6.0515 +58 "2B2" 46.850 72.093 42.887 5.3134 8.7205 3.7883 +59 "2C2" 126.21 86.097 104.74 24.040 16.842 14.641 +60 "2D2" 68.443 138.05 59.668 10.963 22.720 8.1563 +61 "A3" 40.703 34.668 43.170 3.2215 2.8069 3.1344 +62 "B3" 140.80 177.61 130.47 35.703 49.122 24.276 +63 "C3" 71.422 72.467 144.63 9.6710 9.2674 28.141 +64 "D3" 157.83 159.05 109.87 39.368 42.329 16.693 +65 "E3" 74.511 78.412 148.91 9.8448 9.8037 29.501 +66 "F3" 172.35 192.98 167.60 50.040 60.997 38.371 +67 "G3" 72.505 72.322 146.66 9.8731 9.2375 28.216 +68 "H3" 132.85 167.63 50.020 31.926 43.409 5.2962 +69 "I3" 99.822 132.27 193.48 18.889 24.530 52.235 +70 "J3" 158.78 88.817 87.144 36.271 22.167 11.952 +71 "K3" 146.32 156.61 192.38 34.281 37.060 50.573 +72 "L3" 30.978 30.641 29.826 2.4511 2.5353 2.0398 +73 "M3" 146.27 153.30 150.57 34.120 37.136 30.510 +74 "N3" 144.16 70.919 46.534 28.309 16.461 3.7229 +75 "O3" 85.091 72.947 144.27 12.851 10.508 27.052 +76 "P3" 122.91 131.12 67.881 24.532 27.910 7.4170 +77 "Q3" 140.27 116.77 178.48 29.800 23.719 40.761 +78 "R3" 73.020 103.31 46.082 11.420 17.249 4.2060 +79 "S3" 148.58 74.828 46.145 30.098 17.923 3.6411 +80 "T3" 92.676 106.61 179.17 15.102 16.455 41.548 +81 "U3" 89.067 149.36 56.522 16.816 29.880 6.2892 +82 "V3" 104.27 103.98 177.68 19.054 17.886 40.635 +83 "W3" 122.27 64.970 44.965 21.160 13.146 3.6418 +84 "X3" 190.80 157.08 167.65 56.827 44.647 36.033 +85 "Y3" 55.033 94.759 44.077 7.3224 13.350 4.3645 +86 "Z3" 157.08 85.576 87.558 34.447 20.515 11.595 +87 "2A3" 79.250 88.578 159.52 10.795 11.448 32.464 +88 "2B3" 108.15 127.71 55.172 20.617 25.691 5.5795 +89 "2C3" 78.102 75.847 150.05 11.126 10.174 28.914 +90 "2D3" 202.83 194.20 199.16 68.724 66.102 56.410 +91 "A4" 105.09 86.729 157.14 19.671 15.554 33.919 +92 "B4" 99.696 102.26 43.923 17.501 19.753 3.8498 +93 "C4" 107.26 130.81 190.72 21.509 25.734 51.674 +94 "D4" 178.30 141.51 75.719 51.958 42.451 9.1213 +95 "E4" 86.201 111.97 176.39 14.112 17.806 42.697 +96 "F4" 192.41 193.92 143.50 61.487 65.884 27.427 +97 "G4" 161.20 95.317 155.94 38.420 23.239 29.457 +98 "H4" 74.863 77.945 149.59 9.8759 9.7311 29.126 +99 "I4" 207.61 208.23 184.16 75.793 79.718 46.695 +100 "J4" 70.931 101.90 131.71 10.595 15.480 24.653 +101 "K4" 147.01 94.545 162.80 32.187 21.331 32.814 +102 "L4" 81.586 103.83 104.84 13.777 17.753 16.663 +103 "M4" 141.06 69.848 45.247 27.339 16.027 3.5603 +104 "N4" 90.494 151.07 150.65 16.922 28.995 29.336 +105 "O4" 55.294 41.016 63.313 6.3066 4.7610 6.9921 +106 "P4" 111.84 140.47 103.22 22.390 29.210 15.592 +107 "Q4" 144.45 93.249 162.31 30.657 20.369 32.268 +108 "R4" 105.31 104.82 101.31 19.152 19.807 15.592 +109 "S4" 79.325 137.68 48.973 13.948 25.671 5.2122 +110 "T4" 84.189 150.82 120.01 14.991 27.898 19.745 +111 "U4" 81.413 52.379 93.432 11.486 7.6381 12.484 +112 "V4" 76.459 77.531 42.048 10.749 11.899 3.2945 +113 "W4" 211.28 212.44 213.00 77.699 80.782 67.995 +114 "X4" 125.79 102.06 67.469 24.430 21.610 7.1800 +115 "Y4" 36.736 36.340 46.306 3.2104 3.1999 4.2513 +116 "Z4" 83.114 150.29 61.891 14.450 27.763 8.5197 +117 "2A4" 117.71 90.574 160.37 21.679 16.235 32.574 +118 "2B4" 89.463 153.87 72.494 15.737 29.267 10.078 +119 "2C4" 42.498 47.832 65.570 3.9226 4.4418 7.5674 +120 "2D4" 115.91 156.34 101.73 24.022 34.375 15.022 +121 "A5" 100.43 57.576 43.875 16.920 10.945 3.6233 +122 "B5" 139.57 140.52 191.37 32.876 32.373 51.547 +123 "C5" 106.24 157.82 63.346 23.454 37.144 7.5202 +124 "D5" 120.63 119.68 128.56 24.762 25.266 23.702 +125 "E5" 144.32 70.530 44.643 29.192 16.958 3.5359 +126 "F5" 112.12 164.88 139.23 23.640 37.186 26.447 +127 "G5" 103.37 136.87 47.413 20.387 28.842 4.7028 +128 "H5" 36.251 41.780 35.395 3.3636 4.0809 2.6833 +129 "I5" 111.24 162.80 164.26 23.272 35.820 35.198 +130 "J5" 143.56 87.562 156.55 30.642 19.573 30.103 +131 "K5" 109.54 163.06 164.19 22.753 35.416 35.064 +132 "L5" 79.627 52.133 45.354 11.209 7.8786 3.5144 +133 "M5" 92.456 152.33 153.19 17.513 29.721 30.234 +134 "N5" 34.714 33.013 32.281 2.9935 2.9559 2.2837 +135 "O5" 166.35 175.94 163.99 44.139 49.035 35.423 +136 "P5" 89.669 79.549 47.144 14.200 13.959 3.6761 +137 "Q5" 191.24 182.85 188.48 59.021 56.831 48.262 +138 "R5" 51.675 70.899 41.770 6.3401 9.2262 3.4989 +139 "S5" 170.53 177.54 173.76 45.700 49.818 40.124 +140 "T5" 63.890 93.942 45.687 9.3142 14.437 4.0636 +141 "U5" 30.168 29.299 28.940 2.3535 2.3975 1.9290 +142 "V5" 133.08 133.14 122.05 27.766 28.925 20.091 +143 "W5" 36.054 32.923 33.276 3.0887 2.9300 2.3596 +144 "X5" 61.314 111.77 45.755 8.7239 16.803 5.0276 +145 "Y5" 203.39 209.40 208.06 70.161 75.882 63.247 +146 "Z5" 76.353 77.670 109.77 11.191 11.244 16.654 +147 "2A5" 193.86 202.18 186.73 62.394 68.771 47.096 +148 "2B5" 84.630 73.965 145.61 12.640 10.459 27.333 +149 "2C5" 68.392 129.05 45.336 11.160 21.761 5.5099 +150 "2D5" 210.46 210.49 195.89 77.413 80.592 53.936 +151 "A6" 156.79 90.614 148.03 37.703 22.453 27.499 +152 "B6" 88.481 111.82 178.46 14.943 18.301 44.058 +153 "C6" 167.90 108.82 66.983 44.282 30.956 7.9185 +154 "D6" 66.578 110.85 54.360 10.440 18.144 6.5076 +155 "E6" 148.31 87.735 154.80 32.892 20.486 29.274 +156 "F6" 93.611 155.13 115.73 17.819 31.263 19.184 +157 "G6" 40.190 39.280 58.763 3.7468 3.6058 6.3752 +158 "H6" 170.89 152.59 147.19 45.907 41.132 28.818 +159 "I6" 46.469 44.545 75.326 4.4472 4.1158 9.1204 +160 "J6" 102.48 151.18 180.03 20.388 31.549 44.358 +161 "K6" 30.872 30.164 29.516 2.3970 2.4515 1.9961 +162 "L6" 83.294 137.00 98.315 14.323 24.343 14.536 +163 "M6" 30.722 30.150 29.446 2.3623 2.4293 1.9541 +164 "N6" 163.74 151.67 194.83 41.190 36.767 50.714 +165 "O6" 199.83 203.65 49.970 62.357 69.847 6.3069 +166 "P6" 77.512 86.873 159.07 10.124 10.811 31.915 +167 "Q6" 200.99 194.31 190.45 67.127 65.762 49.352 +168 "R6" 165.39 100.99 154.68 39.128 23.959 27.822 +169 "S6" 69.496 98.026 61.986 10.413 15.222 6.7952 +170 "T6" 167.68 124.93 146.98 41.195 30.074 26.292 +171 "U6" 62.706 68.483 60.211 8.4099 9.5591 6.5834 +172 "V6" 174.63 108.06 166.14 43.942 26.976 32.439 +173 "W6" 138.60 174.02 106.27 33.397 44.263 15.513 +174 "X6" 192.12 161.59 197.05 56.629 45.672 50.137 +175 "Y6" 71.207 70.503 63.173 10.198 10.583 6.9283 +176 "Z6" 171.42 121.85 182.26 42.782 29.822 40.386 +177 "2A6" 193.77 197.98 207.14 61.567 65.013 61.274 +178 "2B6" 117.80 82.965 151.94 21.335 15.115 28.916 +179 "2C6" 36.305 39.517 34.462 3.2203 3.7212 2.6005 +180 "2D6" 152.48 145.44 148.89 35.799 34.854 29.422 +181 "A7" 93.637 153.35 73.710 19.123 33.078 10.667 +182 "B7" 83.277 73.755 144.52 12.915 10.831 28.225 +183 "C7" 206.85 206.70 197.33 77.518 80.587 57.622 +184 "D7" 77.454 73.349 146.72 11.348 10.154 28.703 +185 "E7" 70.809 132.64 47.023 12.442 24.254 5.6475 +186 "F7" 91.049 88.345 163.10 15.345 13.969 34.910 +187 "G7" 177.87 190.87 53.018 52.703 61.988 5.9513 +188 "H7" 75.960 87.720 159.98 9.9056 10.888 32.881 +189 "I7" 199.48 192.77 181.55 67.471 66.483 44.705 +190 "J7" 64.713 68.090 67.610 8.8426 9.6268 8.1730 +191 "K7" 193.08 175.48 139.54 61.925 56.855 24.968 +192 "L7" 75.430 87.876 159.79 9.6349 10.726 32.427 +193 "M7" 133.24 173.17 56.742 32.435 45.157 6.1480 +194 "N7" 148.49 75.098 46.216 30.427 18.146 3.6270 +195 "O7" 97.134 97.177 86.559 16.928 17.695 11.911 +196 "P7" 191.20 160.30 54.685 56.094 48.894 4.9467 +197 "Q7" 80.068 80.251 125.32 11.934 11.778 20.573 +198 "R7" 83.368 147.19 55.358 15.285 28.434 6.3346 +199 "S7" 37.747 44.719 36.907 3.5054 4.3615 2.7830 +200 "T7" 146.52 175.26 205.50 35.099 44.589 58.771 +201 "U7" 133.97 82.941 152.98 26.155 17.005 28.079 +202 "V7" 63.182 103.22 97.125 8.9086 14.924 14.071 +203 "W7" 144.22 147.07 76.384 30.611 33.536 8.6858 +204 "X7" 212.78 213.19 211.89 79.113 81.784 66.503 +205 "Y7" 77.896 86.298 158.37 10.240 10.764 31.229 +206 "Z7" 71.313 133.52 47.389 11.976 23.218 5.4228 +207 "2A7" 75.926 78.650 151.98 9.9976 9.7574 28.929 +208 "2B7" 118.08 168.98 98.781 25.572 39.297 14.262 +209 "2C7" 207.34 198.34 43.623 66.257 69.908 5.8960 +210 "2D7" 92.639 108.26 179.66 14.893 16.603 41.626 +211 "A8" 69.904 137.36 58.325 12.100 24.359 8.4071 +212 "B8" 167.09 144.55 49.599 42.436 39.900 4.7260 +213 "C8" 111.10 78.672 121.83 20.574 15.216 20.136 +214 "D8" 74.340 141.34 56.829 12.701 25.255 8.1803 +215 "E8" 104.13 74.055 141.65 18.324 13.039 26.409 +216 "F8" 90.075 154.61 90.911 16.724 30.035 13.212 +217 "G8" 36.341 33.896 36.868 3.3200 3.1831 3.0291 +218 "H8" 101.65 159.66 134.07 20.304 33.570 24.443 +219 "I8" 34.216 33.499 37.712 2.9169 2.9009 3.0168 +220 "J8" 174.41 165.56 173.38 48.038 46.099 39.891 +221 "K8" 46.252 66.300 42.397 5.2241 8.0427 3.5985 +222 "L8" 152.69 184.12 182.69 38.619 50.368 44.407 +223 "M8" 30.240 29.863 28.939 2.3428 2.3959 1.9273 +224 "N8" 35.593 35.467 34.190 3.1956 3.3116 2.6415 +225 "O8" 71.728 71.553 70.937 10.494 10.847 8.8081 +226 "P8" 115.92 116.10 114.68 22.233 23.005 18.548 +227 "Q8" 159.85 160.38 159.13 39.317 40.778 33.056 +228 "R8" 196.60 197.21 197.12 63.147 65.480 53.862 +229 "S8" 137.57 112.53 140.33 28.252 23.514 24.400 +230 "T8" 80.940 142.13 50.952 14.520 26.909 5.4756 +231 "U8" 99.365 133.93 196.43 18.057 24.054 51.817 +232 "V8" 30.957 30.566 29.813 2.3402 2.3911 1.9209 +233 "W8" 212.09 210.69 210.55 77.838 79.255 64.883 +234 "X8" 90.920 71.799 46.751 14.232 12.342 3.5677 +235 "Y8" 137.72 177.30 175.40 31.451 43.594 39.472 +236 "Z8" 39.524 49.911 38.685 3.8429 5.0881 3.0661 +237 "2A8" 130.39 176.13 127.05 27.844 41.491 21.140 +238 "2B8" 31.904 31.437 30.690 2.4921 2.5648 2.0613 +239 "2C8" 149.77 158.18 196.00 34.635 36.777 50.964 +240 "2D8" 30.719 29.824 29.600 2.3436 2.3905 1.9440 +241 "A9" 160.64 188.72 135.75 46.811 59.109 25.406 +242 "B9" 151.09 113.48 161.82 35.695 26.905 33.928 +243 "C9" 56.378 101.12 44.028 8.0578 15.313 4.8058 +244 "D9" 200.86 192.61 183.06 70.562 68.540 46.575 +245 "E9" 77.639 89.149 161.20 10.633 11.656 33.787 +246 "F9" 183.43 148.52 132.23 54.113 43.360 23.933 +247 "G9" 53.868 83.869 77.703 7.1200 11.358 10.328 +248 "H9" 144.68 93.693 163.06 31.237 20.786 32.756 +249 "I9" 80.625 147.05 117.46 14.469 27.174 19.553 +250 "J9" 82.612 53.093 45.342 11.813 8.1727 3.4750 +251 "K9" 179.05 178.11 205.03 51.613 51.265 59.093 +252 "L9" 68.256 128.21 45.397 11.232 21.889 5.3482 +253 "M9" 30.122 29.559 28.786 2.3389 2.3932 1.9205 +254 "N9" 44.132 44.030 43.113 4.6543 4.8363 3.9004 +255 "O9" 77.603 77.496 77.212 11.973 12.444 10.082 +256 "P9" 123.38 123.35 123.35 24.548 25.410 20.720 +257 "Q9" 167.61 168.12 167.11 43.270 44.842 36.215 +258 "R9" 202.61 204.17 205.53 68.113 71.034 59.864 +259 "S9" 152.34 81.269 59.657 31.468 18.903 5.4734 +260 "T9" 36.525 39.233 37.120 3.2297 3.6435 2.9170 +261 "U9" 147.79 112.59 105.57 31.779 25.042 15.321 +262 "V9" 128.85 175.42 85.449 30.098 43.673 10.856 +263 "W9" 202.12 182.11 203.04 65.360 57.273 55.175 +264 "X9" 58.841 111.22 46.014 7.8261 15.682 5.0934 +265 "Y9" 150.27 74.574 46.780 30.151 17.603 3.5424 +266 "Z9" 91.373 72.814 142.15 14.169 10.872 25.545 +267 "2A9" 178.42 178.87 165.68 49.740 51.961 35.295 +268 "2B9" 110.21 82.066 150.83 19.293 14.167 28.533 +269 "2C9" 115.57 141.00 82.227 23.305 29.469 10.465 +270 "2D9" 120.44 87.308 156.62 22.420 16.254 30.792 +271 "A10" 54.278 98.104 59.100 7.4766 14.316 6.7672 +272 "B10" 141.49 142.92 50.130 30.693 34.185 4.8132 +273 "C10" 69.545 135.98 93.417 11.568 23.235 13.773 +274 "D10" 30.772 30.009 29.471 2.4307 2.4999 2.0171 +275 "E10" 140.52 89.479 159.03 30.140 19.949 31.751 +276 "F10" 88.149 135.62 165.23 15.810 25.353 37.521 +277 "G10" 30.508 30.075 29.389 2.4272 2.4936 1.9887 +278 "H10" 75.794 144.13 86.030 12.549 25.096 11.562 +279 "I10" 29.881 29.286 28.915 2.3402 2.3788 1.9223 +280 "J10" 78.427 139.08 135.09 13.387 24.235 23.958 +281 "K10" 127.69 103.24 52.122 25.478 22.853 4.3681 +282 "L10" 47.518 38.484 37.887 5.0366 4.2550 2.8902 +283 "M10" 30.202 29.466 28.978 2.3374 2.3915 1.9194 +284 "N10" 50.671 50.438 49.901 5.8942 6.1054 4.9143 +285 "O10" 84.087 84.218 84.130 13.462 14.013 11.428 +286 "P10" 130.92 131.27 131.19 27.055 28.014 23.007 +287 "Q10" 174.24 174.94 173.31 47.406 49.169 39.386 +288 "R10" 208.46 209.75 212.17 73.974 77.043 65.729 +289 "S10" 61.440 61.759 68.112 7.8358 8.0794 7.9176 +290 "T10" 189.59 154.63 195.61 54.395 42.563 48.165 +291 "U10" 70.065 139.76 58.155 11.113 22.841 7.7084 +292 "V10" 34.382 38.877 37.374 2.9394 3.4387 2.9247 +293 "W10" 81.185 148.91 88.683 13.284 25.973 11.867 +294 "X10" 31.337 30.706 30.647 2.4768 2.5120 2.1182 +295 "Y10" 132.10 124.54 122.36 27.102 26.481 19.829 +296 "Z10" 128.86 77.259 44.848 23.978 16.698 3.6586 +297 "2A10" 121.07 144.71 145.24 24.659 30.178 27.108 +298 "2B10" 91.404 54.498 76.524 13.618 8.1445 8.4106 +299 "2C10" 122.45 129.19 129.52 24.412 26.496 22.533 +300 "2D10" 52.091 43.712 85.349 5.2897 4.2252 10.803 +301 "A11" 95.121 56.945 109.13 15.662 9.9371 16.757 +302 "B11" 49.247 84.978 41.595 6.3528 11.756 4.1276 +303 "C11" 201.38 188.28 201.57 70.247 65.054 58.834 +304 "D11" 165.99 106.71 48.883 42.904 30.283 4.3741 +305 "E11" 142.45 151.87 140.77 33.675 37.292 27.259 +306 "F11" 59.895 43.373 70.686 7.3260 5.3398 8.4321 +307 "G11" 185.60 179.80 175.52 56.748 56.026 41.441 +308 "H11" 62.810 62.001 39.464 8.1585 8.7147 3.0001 +309 "I11" 182.38 181.99 177.01 54.512 56.195 42.466 +310 "J11" 44.613 62.579 56.523 4.9736 7.2275 6.1574 +311 "K11" 177.26 171.26 154.02 50.413 50.352 29.675 +312 "L11" 81.706 58.921 119.57 11.783 8.3671 18.993 +313 "M11" 30.648 29.769 29.464 2.4004 2.4632 1.9865 +314 "N11" 56.534 56.324 55.689 7.0502 7.2979 5.9348 +315 "O11" 89.911 89.936 88.980 15.157 15.663 12.643 +316 "P11" 140.77 141.41 140.88 30.809 31.935 26.037 +317 "Q11" 179.84 180.21 178.58 51.029 52.827 42.179 +318 "R11" 212.60 213.84 215.53 78.892 82.077 69.152 +319 "S11" 66.493 66.184 65.558 9.0391 9.3614 7.5795 +320 "T11" 187.32 160.61 146.99 54.688 46.067 27.270 +321 "U11" 59.842 44.929 41.517 7.0672 5.5203 3.1542 +322 "V11" 100.71 151.70 177.40 19.018 30.251 40.808 +323 "W11" 32.433 32.983 31.555 2.6438 2.7813 2.1741 +324 "X11" 103.41 161.56 150.03 20.294 33.254 28.954 +325 "Y11" 49.930 46.756 84.028 4.7917 4.3367 10.461 +326 "Z11" 157.24 187.57 185.20 39.678 51.335 44.730 +327 "2A11" 69.840 130.51 46.639 11.397 22.075 5.4606 +328 "2B11" 164.73 190.77 189.92 43.396 54.386 47.692 +329 "2C11" 67.660 57.565 50.639 9.0264 8.0855 4.5632 +330 "2D11" 146.88 73.255 46.894 29.263 17.239 3.6542 +331 "A12" 149.18 183.06 84.464 42.435 55.238 11.960 +332 "B12" 72.446 71.794 146.17 10.244 9.5241 28.550 +333 "C12" 111.58 163.80 82.344 25.557 39.490 11.397 +334 "D12" 67.115 62.023 67.669 9.5983 9.1448 8.3283 +335 "E12" 202.25 206.59 144.16 71.285 77.444 27.463 +336 "F12" 142.52 142.52 149.46 32.592 33.399 30.058 +337 "G12" 52.218 46.843 96.005 5.1430 4.3541 13.182 +338 "H12" 95.301 157.62 128.66 18.517 32.087 22.562 +339 "I12" 58.804 42.199 45.333 6.9977 5.1440 3.8014 +340 "J12" 201.67 207.01 112.57 69.246 76.042 17.844 +341 "K12" 76.878 56.433 113.86 10.642 7.6407 17.593 +342 "L12" 110.43 164.87 121.89 21.927 35.477 19.681 +343 "M12" 31.073 30.502 29.828 2.4287 2.4921 1.9949 +344 "N12" 60.863 60.999 60.221 7.9937 8.3172 6.7360 +345 "O12" 97.436 97.414 96.425 17.120 17.761 14.285 +346 "P12" 146.96 147.76 147.68 33.242 34.486 28.221 +347 "Q12" 186.04 186.49 184.52 55.136 57.000 45.303 +348 "R12" 217.03 217.69 217.80 84.047 87.070 71.496 +349 "S12" 173.81 166.67 164.48 46.799 45.618 34.284 +350 "T12" 61.998 59.133 126.43 6.6921 6.0185 19.773 +351 "U12" 133.08 178.53 107.01 31.583 45.365 15.646 +352 "V12" 159.59 92.307 67.569 35.975 22.808 7.0470 +353 "W12" 92.823 93.091 102.67 15.632 16.004 15.333 +354 "X12" 153.31 79.910 48.385 32.188 19.569 3.7849 +355 "Y12" 76.169 77.765 152.48 9.9981 9.6287 28.171 +356 "Z12" 80.867 145.82 55.209 14.429 27.348 6.4901 +357 "2A12" 88.726 84.091 155.13 13.822 12.446 29.936 +358 "2B12" 201.37 208.14 195.53 68.261 74.431 52.067 +359 "2C12" 32.004 31.705 30.813 2.4685 2.5621 2.0287 +360 "2D12" 135.53 145.08 187.78 28.798 30.974 45.549 +361 "A13" 86.415 69.301 138.07 14.129 10.884 26.286 +362 "B13" 104.58 136.42 46.559 21.280 29.662 4.6515 +363 "C13" 147.82 79.114 100.32 32.064 17.966 13.604 +364 "D13" 75.334 85.157 157.26 9.9611 10.733 32.277 +365 "E13" 178.81 179.96 148.24 51.845 54.927 28.181 +366 "F13" 55.482 72.327 100.16 6.3441 8.5421 15.068 +367 "G13" 200.09 199.75 184.43 68.699 71.452 46.387 +368 "H13" 76.688 84.710 151.41 10.374 10.902 29.169 +369 "I13" 129.73 107.35 52.022 26.203 23.997 4.3858 +370 "J13" 119.03 160.66 198.42 25.753 36.554 54.373 +371 "K13" 56.473 50.032 106.16 5.9068 4.9157 15.287 +372 "L13" 153.18 106.56 46.936 35.348 27.270 4.1933 +373 "M13" 32.264 31.978 31.289 2.6154 2.7053 2.1626 +374 "N13" 66.470 66.520 66.246 9.3637 9.6843 7.8391 +375 "O13" 105.28 105.86 104.76 19.359 20.106 16.147 +376 "P13" 153.75 154.63 154.12 36.624 37.957 30.671 +377 "Q13" 192.03 192.25 191.27 59.859 61.861 49.702 +378 "R13" 221.68 221.89 221.96 89.957 93.025 75.604 +379 "S13" 104.20 75.856 145.33 17.613 12.665 26.369 +380 "T13" 121.87 124.18 72.370 22.969 25.114 7.7873 +381 "U13" 91.392 55.886 72.021 13.623 8.3610 7.6135 +382 "V13" 193.01 176.53 161.70 59.661 54.433 33.140 +383 "W13" 97.047 61.496 44.638 15.045 10.609 3.4373 +384 "X13" 124.18 171.27 172.48 26.676 39.190 37.659 +385 "Y13" 100.95 103.55 45.932 16.770 18.831 3.7976 +386 "Z13" 98.719 76.722 108.03 16.243 13.004 15.620 +387 "2A13" 193.99 204.68 205.71 62.079 69.145 59.254 +388 "2B13" 77.619 94.368 167.50 9.8300 11.508 34.315 +389 "2C13" 91.512 53.191 50.701 13.378 8.4024 4.1065 +390 "2D13" 76.609 104.98 135.45 11.706 16.228 24.708 +391 "A14" 129.84 79.131 147.61 27.260 17.709 28.446 +392 "B14" 74.731 86.884 158.53 10.007 11.116 33.309 +393 "C14" 178.45 194.65 198.02 55.170 63.826 56.969 +394 "D14" 122.80 65.789 71.805 22.474 12.791 7.8220 +395 "E14" 99.529 101.15 66.691 17.833 19.340 7.6068 +396 "F14" 133.73 68.160 43.803 25.508 15.387 3.5019 +397 "G14" 130.31 174.28 137.87 28.674 42.244 25.294 +398 "H14" 110.49 77.413 145.63 20.013 14.167 27.201 +399 "I14" 30.999 29.764 29.587 2.4079 2.4331 1.9867 +400 "J14" 120.14 114.13 178.99 23.527 21.066 41.374 +401 "K14" 128.29 64.544 74.117 23.203 12.509 8.0121 +402 "L14" 176.70 157.34 183.40 48.486 42.511 43.112 +403 "M14" 59.777 105.00 45.141 8.6031 15.926 4.6200 +404 "N14" 182.00 181.11 190.30 53.107 53.884 48.977 +405 "O14" 42.651 40.749 62.042 3.9836 3.7404 6.5852 +406 "P14" 151.32 150.31 182.91 35.517 35.068 43.001 +407 "Q14" 162.51 94.932 125.82 37.782 22.314 19.042 +408 "R14" 99.745 94.301 93.467 17.467 17.105 13.104 +409 "S14" 107.25 159.78 58.090 22.370 35.508 5.9931 +410 "T14" 128.01 72.369 117.84 23.886 13.985 16.868 +411 "U14" 107.76 101.18 90.766 19.591 19.252 12.172 +412 "V14" 204.14 190.16 48.644 63.345 63.812 5.6645 +413 "W14" 82.597 65.626 44.970 12.028 10.481 3.3856 +414 "X14" 166.39 166.20 175.82 42.635 43.420 39.912 +415 "Y14" 100.69 152.17 51.384 19.856 32.192 5.1431 +416 "Z14" 91.650 100.20 90.746 15.570 17.641 12.711 +417 "2A14" 143.62 91.243 162.04 29.733 19.495 31.105 +418 "2B14" 214.71 215.34 214.31 81.209 84.285 67.959 +419 "2C14" 101.32 87.875 161.74 16.972 13.897 32.504 +420 "2D14" 105.18 138.75 68.497 20.262 27.906 7.7177 +421 "A15" 124.84 68.758 114.78 24.922 14.319 17.652 +422 "B15" 99.929 150.22 167.53 20.394 32.266 39.177 +423 "C15" 121.25 165.78 57.133 28.847 42.042 6.3345 +424 "D15" 129.49 121.04 130.58 27.579 26.553 23.681 +425 "E15" 161.27 95.254 123.97 38.874 23.290 19.357 +426 "F15" 148.20 174.03 142.22 36.703 46.352 27.027 +427 "G15" 150.41 98.923 167.42 34.061 22.803 34.531 +428 "H15" 75.180 91.615 158.04 10.113 11.921 31.879 +429 "I15" 196.22 179.25 172.32 64.423 58.008 39.281 +430 "J15" 66.558 62.105 60.696 9.4542 9.1717 6.7120 +431 "K15" 174.25 177.65 112.40 48.073 52.062 16.154 +432 "L15" 116.33 112.29 162.02 22.225 20.657 33.169 +433 "M15" 133.68 171.46 73.038 32.410 43.840 8.6168 +434 "N15" 102.47 146.49 198.15 19.932 29.141 53.896 +435 "O15" 64.715 46.574 43.032 8.2354 6.1612 3.2448 +436 "P15" 105.91 159.08 164.78 21.186 33.689 34.860 +437 "Q15" 34.379 33.754 36.003 2.8839 2.9372 2.7235 +438 "R15" 102.62 61.271 119.89 16.647 10.677 18.389 +439 "S15" 159.62 86.224 48.021 35.874 22.454 3.7685 +440 "T15" 95.611 158.57 127.45 18.024 31.495 21.231 +441 "U15" 133.03 87.140 157.87 26.027 17.635 30.172 +442 "V15" 48.894 77.368 43.484 5.7623 9.6302 3.8733 +443 "W15" 182.54 191.20 178.40 53.522 58.991 41.376 +444 "X15" 126.00 95.308 166.74 23.991 17.693 34.060 +445 "Y15" 38.376 39.986 33.590 3.5595 3.8688 2.3978 +446 "Z15" 148.30 148.94 147.37 34.055 35.265 28.241 +447 "2A15" 146.55 75.055 68.429 29.379 16.826 7.3609 +448 "2B15" 71.706 70.645 144.63 9.2107 8.5579 25.691 +449 "2C15" 133.02 80.816 44.452 25.707 18.129 3.6532 +450 "2D15" 82.777 113.54 117.52 13.875 19.568 19.948 +451 "A16" 147.43 75.104 45.417 32.441 19.582 3.7464 +452 "B16" 162.22 145.05 108.87 43.738 40.362 16.554 +453 "C16" 43.273 69.681 61.261 4.9159 8.3065 7.2559 +454 "D16" 154.15 106.72 65.606 37.197 27.832 7.4910 +455 "E16" 149.19 148.83 193.98 36.691 35.876 51.695 +456 "F16" 157.80 111.38 47.573 38.836 30.036 4.3338 +457 "G16" 100.61 79.449 149.13 17.555 13.363 28.888 +458 "H16" 206.92 207.61 211.44 75.466 77.836 67.216 +459 "I16" 97.895 82.272 66.348 16.954 15.112 7.2992 +460 "J16" 172.80 178.46 82.595 47.072 52.200 10.669 +461 "K16" 183.90 191.17 190.75 55.962 60.759 50.287 +462 "L16" 75.048 76.021 151.02 10.165 9.7715 28.705 +463 "M16" 159.42 88.282 47.938 36.859 23.500 3.8297 +464 "N16" 133.24 176.09 150.50 29.735 43.076 29.229 +465 "O16" 59.749 48.251 40.198 7.3545 6.2503 2.9745 +466 "P16" 171.06 168.69 161.58 46.114 46.965 33.568 +467 "Q16" 53.260 54.841 37.700 6.2218 6.8107 2.7776 +468 "R16" 147.03 76.735 66.424 29.663 17.214 6.8286 +469 "S16" 63.206 78.809 107.93 8.0381 10.138 16.410 +470 "T16" 150.22 77.352 47.226 31.088 18.734 3.6263 +471 "U16" 97.824 159.49 134.64 18.911 32.215 23.899 +472 "V16" 133.39 81.567 151.23 26.145 16.883 27.363 +473 "W16" 155.32 82.024 48.477 33.705 20.761 3.7986 +474 "X16" 81.301 147.86 56.013 14.361 27.487 7.1744 +475 "Y16" 141.53 112.75 178.08 29.882 22.982 39.138 +476 "Z16" 31.556 30.196 30.075 2.4233 2.4412 1.9648 +477 "2A16" 166.04 149.78 129.15 42.519 39.188 21.270 +478 "2B16" 53.939 48.402 100.70 5.2349 4.4461 13.823 +479 "2C16" 152.96 83.435 68.500 32.492 19.465 7.0806 +480 "2D16" 141.97 181.00 131.63 33.454 46.863 22.481 +481 "A17" 93.002 152.57 112.99 18.355 31.722 19.048 +482 "B17" 48.562 44.595 81.595 4.8626 4.2833 10.526 +483 "C17" 155.24 137.12 108.13 39.631 36.092 16.781 +484 "D17" 37.723 54.820 48.270 3.8471 5.8319 4.8962 +485 "E17" 163.04 158.68 133.73 43.491 44.349 22.904 +486 "F17" 155.10 81.151 47.477 35.028 21.444 3.8305 +487 "G17" 119.76 108.26 175.73 23.826 20.302 40.464 +488 "H17" 155.83 188.69 108.40 44.211 56.679 16.435 +489 "I17" 54.125 49.417 43.252 6.5115 6.2807 3.6004 +490 "J17" 146.89 182.65 155.76 35.464 48.530 31.500 +491 "K17" 148.71 77.345 50.119 31.217 18.833 4.2081 +492 "L17" 53.925 41.854 39.291 6.1796 5.0138 3.0160 +493 "M17" 105.46 156.83 167.45 21.355 33.511 36.981 +494 "N17" 149.16 79.222 103.08 31.382 17.339 13.539 +495 "O17" 109.98 107.89 138.78 20.515 20.076 24.934 +496 "P17" 151.99 78.765 47.620 32.143 19.447 3.7592 +497 "Q17" 195.13 169.06 200.08 60.501 50.532 52.708 +498 "R17" 73.599 136.55 49.271 12.657 24.420 5.6873 +499 "S17" 37.757 33.718 34.938 3.4355 3.1639 2.5372 +500 "T17" 132.61 142.77 197.68 28.192 29.771 51.322 +501 "U17" 181.82 145.93 103.48 52.660 42.651 15.019 +502 "V17" 204.10 203.91 210.35 69.823 71.393 63.731 +503 "W17" 175.82 179.36 52.229 44.995 50.413 5.2421 +504 "X17" 155.69 156.50 143.88 37.401 38.967 26.702 +505 "Y17" 65.731 44.495 80.654 8.0339 5.5483 9.9052 +506 "Z17" 67.930 138.21 88.916 10.382 21.829 11.599 +507 "2A17" 156.40 87.866 68.881 34.325 21.131 7.2263 +508 "2B17" 68.870 68.990 41.254 9.1863 9.9839 3.1512 +509 "2C17" 209.60 202.66 207.60 75.534 73.388 61.922 +510 "2D17" 108.97 87.062 152.98 19.258 14.916 29.290 +511 "A18" 200.70 204.40 197.90 74.089 78.770 59.424 +512 "B18" 164.93 117.44 177.68 42.903 30.204 40.715 +513 "C18" 61.227 72.827 56.013 8.7363 10.837 6.0872 +514 "D18" 204.51 199.19 195.95 75.509 74.636 56.066 +515 "E18" 73.692 73.322 148.06 10.413 9.8011 28.727 +516 "F18" 68.313 128.24 45.392 11.836 22.861 5.4226 +517 "G18" 131.14 85.288 152.52 26.954 18.177 29.358 +518 "H18" 89.609 153.68 93.128 16.220 29.699 13.154 +519 "I18" 30.179 29.676 28.922 2.3647 2.3980 1.9090 +520 "J18" 208.65 210.69 209.48 77.786 81.283 65.463 +521 "K18" 88.863 70.346 63.498 14.363 11.898 6.7644 +522 "L18" 197.92 177.16 54.602 60.378 57.128 5.2726 +523 "M18" 143.55 91.470 162.00 30.554 20.123 31.743 +524 "N18" 121.99 131.52 122.44 24.748 27.645 20.451 +525 "O18" 172.04 115.00 91.328 44.929 31.003 12.389 +526 "P18" 81.187 74.923 148.64 11.881 10.425 27.990 +527 "Q18" 117.91 169.48 101.12 25.737 39.690 14.823 +528 "R18" 183.93 145.62 52.297 52.300 42.856 4.6545 +529 "S18" 55.452 105.38 65.438 7.2126 14.429 7.1944 +530 "T18" 211.11 208.92 210.90 77.679 78.425 65.193 +531 "U18" 177.41 124.39 134.00 47.084 32.209 22.319 +532 "V18" 53.506 90.891 78.889 6.6683 11.848 10.189 +533 "W18" 197.65 205.13 206.81 65.207 70.970 60.729 +534 "X18" 51.396 86.860 43.674 6.2806 11.330 4.1095 +535 "Y18" 193.58 175.18 113.92 60.571 56.044 16.070 +536 "Z18" 96.313 103.94 178.60 15.673 16.045 40.153 +537 "2A18" 168.53 106.08 128.73 41.178 25.901 19.845 +538 "2B18" 85.496 104.15 136.89 13.693 16.674 24.407 +539 "2C18" 208.09 210.26 179.31 74.223 78.952 41.733 +540 "2D18" 161.94 92.492 50.116 38.135 24.817 4.1395 +541 "A19" 156.71 112.54 101.12 39.239 29.094 15.479 +542 "B19" 42.513 58.501 40.536 4.7416 7.0454 3.4644 +543 "C19" 172.17 152.13 143.40 49.395 43.657 28.522 +544 "D19" 159.73 183.13 54.703 42.332 52.372 5.7052 +545 "E19" 119.21 105.48 95.518 24.242 22.424 14.026 +546 "F19" 30.235 29.764 29.269 2.4551 2.5226 2.0256 +547 "G19" 88.689 134.99 136.69 16.677 25.667 25.825 +548 "H19" 86.392 53.901 45.566 13.124 8.8453 3.5763 +549 "I19" 126.88 158.15 160.78 28.527 37.076 34.358 +550 "J19" 120.42 79.125 64.241 22.891 16.490 6.9749 +551 "K19" 108.34 160.80 164.56 22.666 35.279 35.631 +552 "L19" 49.327 39.952 38.592 5.4212 4.5484 2.9627 +553 "M19" 67.917 128.27 44.976 11.199 21.925 5.4425 +554 "N19" 127.84 62.080 45.945 22.708 12.897 3.6335 +555 "O19" 74.380 138.45 130.11 12.507 23.738 22.498 +556 "P19" 30.060 29.337 28.817 2.3442 2.3896 1.9267 +557 "Q19" 147.97 73.539 46.480 30.303 17.749 3.5777 +558 "R19" 75.153 76.608 151.15 10.104 9.7374 28.448 +559 "S19" 78.339 144.41 52.936 13.901 26.685 6.3873 +560 "T19" 31.312 30.556 30.767 2.4391 2.4780 2.0610 +561 "U19" 169.32 177.98 203.35 45.972 49.473 57.247 +562 "V19" 44.471 72.376 45.634 4.8275 8.3485 3.9886 +563 "W19" 199.02 205.39 55.979 63.154 70.855 7.5811 +564 "X19" 90.125 81.954 73.039 14.863 14.166 8.5770 +565 "Y19" 207.33 211.44 212.22 74.340 78.986 66.286 +566 "Z19" 182.95 126.85 175.69 49.996 33.344 36.894 +567 "2A19" 77.857 90.598 163.13 10.165 11.287 33.081 +568 "2B19" 202.16 204.23 49.052 62.642 69.515 6.2139 +569 "2C19" 162.94 96.440 68.740 38.429 24.741 7.3479 +570 "2D19" 83.952 84.116 160.97 12.944 12.283 32.608 +END_DATA diff --git a/ref/ClayRGB1998.icm b/ref/ClayRGB1998.icm index 1c3a02e..4c8ecb3 100644 Binary files a/ref/ClayRGB1998.icm and b/ref/ClayRGB1998.icm differ diff --git a/ref/ColorCheckerSG.ti2 b/ref/ColorCheckerSG.ti2 new file mode 100644 index 0000000..7459061 --- /dev/null +++ b/ref/ColorCheckerSG.ti2 @@ -0,0 +1,284 @@ +CTI3 + +DESCRIPTOR "Argyll Calibration Target chart information 3" +ORIGINATOR "Argyll target" +CREATED "Thu Feb 04 12:14:29 2010" +KEYWORD "DEVICE_CLASS" +DEVICE_CLASS "INPUT" +KEYWORD "COLOR_REP" +COLOR_REP "XYZ_RGB" + +KEYWORD "STDEV_R" +KEYWORD "STDEV_G" +NUMBER_OF_FIELDS 10 +BEGIN_DATA_FORMAT +SAMPLE_ID XYZ_X XYZ_Y XYZ_Z RGB_R RGB_G RGB_B STDEV_R STDEV_G STDEV_B +END_DATA_FORMAT + +NUMBER_OF_SETS 264 +BEGIN_DATA +A01 3.8500 3.2200 1.9000 3.0870 1.9150 1.9568 0.18288 0.33530 0.13814 +A02 4.8900 3.2700 1.6000 4.3780 1.1194 1.5620 0.18986 0.21677 0.15053 +A03 5.8700 3.3100 1.3300 7.0969 0.79829 1.4596 0.19608 0.13702 0.21648 +A04 6.3000 3.3800 1.1900 9.3444 0.79154 1.6415 0.24898 0.11159 0.21239 +A05 13.010 11.440 7.6400 14.232 7.8664 9.0240 0.51082 0.34461 0.40609 +A06 16.140 11.990 6.8100 19.112 4.9827 7.4008 0.27379 0.27636 0.24485 +A07 19.350 12.410 6.0600 24.550 2.9139 6.6589 0.44040 0.23921 0.36013 +A08 20.410 11.970 5.3000 28.200 1.9757 5.6575 0.32681 0.17783 0.34406 +A09 43.500 42.810 32.650 50.412 41.562 43.136 0.83769 0.58646 0.66130 +A10 45.580 42.370 30.950 52.491 37.167 40.121 0.65668 0.68089 0.75167 +A11 48.990 43.200 29.900 55.546 34.358 38.456 0.89084 0.72144 0.46689 +A12 50.730 44.020 29.960 59.252 33.923 39.172 0.67792 0.64492 0.71595 +A13 74.460 78.760 66.060 86.999 87.136 83.095 0.84067 0.78370 1.0173 +A14 75.660 76.420 64.080 88.257 85.809 81.940 0.97591 0.87575 0.93144 +A15 78.360 81.340 65.410 89.349 87.424 79.630 0.80575 0.84750 0.90746 +A16 70.520 73.300 59.160 83.248 81.172 76.884 0.59765 0.53177 0.91515 +A17 74.980 75.980 60.690 86.615 83.456 77.766 0.59041 0.64935 0.85237 +A18 72.850 77.300 60.250 85.072 85.370 78.761 0.67171 0.77803 0.78435 +A19 73.090 75.520 64.540 85.077 84.325 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5.4164 0.19533 0.41922 0.22533 +GS16 4.9500 5.1800 3.7000 3.5418 3.5969 4.0009 0.21349 0.20376 0.24671 +GS17 3.5800 3.8200 2.7600 2.2466 2.3553 2.3640 0.20655 0.13937 0.14287 +GS18 2.7600 2.8900 2.0600 1.1077 1.1790 1.5754 0.28160 0.25904 0.24353 +GS19 1.9700 2.0800 1.4500 0.35943 0.40395 0.79579 0.18424 0.11867 0.11747 +GS20 1.2200 1.3100 0.98000 0.23507 0.31297 0.70239 0.19729 0.21133 0.18880 +GS21 1.0000 1.0500 0.74000 0.38400 0.38523 0.77548 0.10266 0.10537 0.10605 +GS22 0.87000 0.89000 0.65000 0.39216 0.39216 0.74886 8.7126e-017 8.7126e-017 0.16598 +GS23 0.34000 0.32000 0.32000 0.39226 0.39237 0.43006 0.012929 0.018274 0.16840 +END_DATA diff --git a/ref/EBU3213_PAL.icm b/ref/EBU3213_PAL.icm index 54cfed7..b0e67bc 100644 Binary files a/ref/EBU3213_PAL.icm and b/ref/EBU3213_PAL.icm differ diff --git a/ref/ProPhoto.icm b/ref/ProPhoto.icm index 3ed16cb..cb6ee56 100644 Binary files a/ref/ProPhoto.icm and b/ref/ProPhoto.icm differ diff --git a/ref/ProPhotoLin.icm b/ref/ProPhotoLin.icm index 579b903..28369aa 100644 Binary files a/ref/ProPhotoLin.icm and b/ref/ProPhotoLin.icm differ diff --git a/ref/Rec2020.icm b/ref/Rec2020.icm index 09d5ccf..0decaf6 100644 Binary files a/ref/Rec2020.icm and b/ref/Rec2020.icm differ diff --git a/ref/Rec709.icm b/ref/Rec709.icm index 46140bd..abf0a63 100644 Binary files a/ref/Rec709.icm and b/ref/Rec709.icm differ diff --git a/ref/SMPTE431_P3.icm b/ref/SMPTE431_P3.icm index f3861be..8055849 100644 Binary files a/ref/SMPTE431_P3.icm and b/ref/SMPTE431_P3.icm differ diff --git a/ref/SMPTE_RP145_NTSC.icm b/ref/SMPTE_RP145_NTSC.icm index a6ce7f1..7fc78fb 100644 Binary files a/ref/SMPTE_RP145_NTSC.icm and b/ref/SMPTE_RP145_NTSC.icm differ diff --git a/ref/afiles b/ref/afiles index f5d9028..360448a 100644 --- a/ref/afiles +++ b/ref/afiles @@ -11,17 +11,19 @@ Rec709.icm Rec2020.icm SMPTE431_P3.icm lab2lab.icm +cmyk.icm ccxx.ti1 CMP_DT_003.cht -CMP_Digital_Target-3.cht -CMP_Digital_Target-3.ti2 -CMP_Digital_Target-3.cie +CMP_Digital_Target-4.cht +CMP_Digital_Target-4.ti2 +CMP_Digital_Target-4.cie ColorChecker.cht ColorChecker.cie ColorChecker.ti2 ColorCheckerDC.cht ColorCheckerDC.ti2 ColorCheckerSG.cht +ColorCheckerSG.ti2 ColorCheckerPassport.cht ColorCheckerPassport.cie SpyderChecker.cht diff --git a/ref/cmyk.icm b/ref/cmyk.icm new file mode 100644 index 0000000..7f07077 Binary files /dev/null and b/ref/cmyk.icm differ diff --git a/ref/lab2lab.icm b/ref/lab2lab.icm index 0b8a4b3..39a5911 100644 Binary files a/ref/lab2lab.icm and b/ref/lab2lab.icm differ diff --git a/ref/linear.cal b/ref/linear.cal index 6001c2d..24e5867 100644 --- a/ref/linear.cal +++ b/ref/linear.cal @@ -2,7 +2,7 @@ CAL DESCRIPTOR "Argyll Device Calibration Curves" ORIGINATOR "Argyll synthcal" -CREATED "Tue Nov 12 17:20:57 2013" +CREATED "Sat Mar 21 14:34:34 2015" KEYWORD "DEVICE_CLASS" DEVICE_CLASS "DISPLAY" KEYWORD "COLOR_REP" diff --git a/ref/sRGB.icm b/ref/sRGB.icm index 5491330..9d33a4b 100644 Binary files a/ref/sRGB.icm and b/ref/sRGB.icm differ diff --git a/ref/strange.cal b/ref/strange.cal index 2a81602..ddb4677 100644 --- a/ref/strange.cal +++ b/ref/strange.cal @@ -2,7 +2,7 @@ CAL DESCRIPTOR "Argyll Device Calibration Curves" ORIGINATOR "Argyll synthcal" -CREATED "Tue Nov 12 17:20:57 2013" +CREATED "Sat Mar 21 14:34:34 2015" KEYWORD "DEVICE_CLASS" DEVICE_CLASS "DISPLAY" KEYWORD "COLOR_REP" diff --git a/render/Jamfile b/render/Jamfile index fe975ea..ca199ab 100644 --- a/render/Jamfile +++ b/render/Jamfile @@ -18,12 +18,13 @@ InstallBin $(DESTDIR)$(PREFIX)/bin : $(Executables) ; #InstallFile $(DESTDIR)$(PREFIX)/h : $(Headers) ; #InstallLib $(DESTDIR)$(PREFIX)/lib : $(Libraries) ; -HDRS = ../h ../numlib $(TIFFINC) ; +HDRS = ../h ../numlib $(TIFFINC) $(PNGINC) ; # 2D Rendering library Library librender : render.c thscreen.c ; -Main timage : timage.c : : : : : librender ../numlib/libnum $(TIFFLIB) $(JPEGLIB) ; +Main timage : timage.c : : : : : librender ../numlib/libnum + $(TIFFLIB) $(JPEGLIB) $(PNGLIB) $(ZLIB) ; if $(BUILD_JUNK) { diff --git a/render/render.c b/render/render.c index cbeb78d..de34ebd 100644 --- a/render/render.c +++ b/render/render.c @@ -14,18 +14,31 @@ * see the License.txt file for licencing details. */ +/* + * TTBD: Should make this much more self contained in how + * it deals with errors - return an error code & string, + * and clean up resourcse. + */ + #undef DEBUG +#undef CCTEST_PATTERN /* Create ccast upsampling test pattern if */ + /* "ARGYLL_CCAST_TEST_PATTERN" env variable is set */ +#undef TEST_SCREENING /* For testing by making screen visible */ + +#define OVERLAP 0.1 /* Stocastic screening overlap between levels */ #define verbo stdout #include #include #include +#include #include "copyright.h" #include "aconfig.h" #include "sort.h" #include "numlib.h" #include "tiffio.h" +#include "png.h" #include "render.h" #include "thscreen.h" @@ -84,6 +97,131 @@ static void cvt_Lab_to_CIELAB16(double *out, double *in) { out[2] = 65536.0 + out[2]; } +/* ------------------------------------------------------------- */ +/* PNG memory write support */ +typedef struct { + unsigned char *buf; + png_size_t len; /* Current length of the buffer */ + png_size_t off; /* Current offset of the buffer */ +} png_mem_info; + +static void mem_write_data(png_structp png_ptr, png_bytep data, png_size_t length) { + png_mem_info *s = (png_mem_info *)png_get_io_ptr(png_ptr); + + if ((s->off + length) > s->len) { /* Need more space */ + png_size_t more = (s->off + length) - s->len; + + if (more < (1024 * 80)) + more = 1024 * 50 - 32; /* Increase 50K at a time */ + s->len += more; + + if ((s->buf = realloc(s->buf, s->len)) == NULL) { + png_error(png_ptr, "malloc failed in mem_write_data"); + } + } + memcpy(s->buf + s->off, data, length); + s->off += length; +} + +static void mem_flush_data(png_structp png_ptr) { + return; +} + +/* ------------------------------------------------------------- */ +#ifdef CCTEST_PATTERN + +#define SG 9 // Spacing is 9 pixels +//#define SG 64 // 10 lines per half screen + +static void test_value(render2d *s, tdata_t *outbuf, int xx, int yy) { + int x = xx, y = yy; + int i, j, v; + int oval[3]; /* 8 bit value */ + + if (x < s->pw/2) { + if (y < s->ph/2) { + /* Generate vertical white stripes */ + /* Stripes are 5 pixels apart in groups of 2 of the same level, */ + /* declining by 1 each group */ + if ((x % SG) == 0) { + i = x / (2 * SG); + v = 255 - i; + if (v < 0) + v = 0; + oval[0] = oval[1] = oval[2] = v; + } else { + oval[0] = oval[1] = oval[2] = 0; + } + } else { + y -= s->ph/2; + /* Generate white dots */ + if ((x % SG) == 0 && (y % SG) == 0) { + i = x / (2 * SG); + j = y / (2 * SG); + + i += j * s->pw/2/(2 * SG); + oval[0] = oval[1] = oval[2] = 0; + + for (j = 5; j >= 0; j--) { + oval[0] = (oval[0] << 1) | ((i >> (j * 3 + 0)) & 1); + oval[1] = (oval[1] << 1) | ((i >> (j * 3 + 1)) & 1); + oval[2] = (oval[2] << 1) | ((i >> (j * 3 + 2)) & 1); + } + oval[0] = 255 - oval[0]; + oval[1] = 255 - oval[1]; + oval[2] = 255 - oval[2]; + } else { + oval[0] = oval[1] = oval[2] = 0; + } + } + } else { + x -= s->pw/2; + if (y < s->ph/2) { + /* Generate horizontal white stripes */ + /* Stripes are 5 pixels apart in groups of 2 of the same level, */ + /* declining by 1 each group */ + if ((y % SG) == 0) { + j = y / (2 * SG); + v = 255 - j; + oval[0] = oval[1] = oval[2] = v; + } else { + oval[0] = oval[1] = oval[2] = 0; + } + } else { + y -= s->ph/2; + /* Generate black dots */ + if ((x % SG) == 0 && (y % SG) == 0) { + i = x / (2 * SG); + j = y / (2 * SG); + i += j * s->pw/2/(2 * SG); + oval[0] = oval[1] = oval[2] = 0; + + for (j = 5; j >= 0; j--) { + oval[0] = (oval[0] << 1) | ((i >> (j * 3 + 0)) & 1); + oval[1] = (oval[1] << 1) | ((i >> (j * 3 + 1)) & 1); + oval[2] = (oval[2] << 1) | ((i >> (j * 3 + 2)) & 1); + } + } else { + oval[0] = oval[1] = oval[2] = 255; + } + } + } + + if (s->dpth == bpc8_2d) { + unsigned char *p = ((unsigned char *)outbuf) + xx * s->ncc; + p[0] = oval[0]; + p[1] = oval[1]; + p[2] = oval[2]; + } else { + unsigned short *p = ((unsigned short *)outbuf) + xx * s->ncc; + p[0] = oval[0] * 256; + p[1] = oval[1] * 256; + p[2] = oval[2] * 256; + } +} +#undef SG +#endif + /* ------------------------------------------------------------- */ /* Main class implementation */ @@ -156,9 +294,16 @@ static int colordiff(render2d *s, color2d c1, color2d c2) { #define MIXPOW 1.3 #define OSAMLS 16 -/* Render and write to a TIFF file */ +/* Render and write to a TIFF or PNG file or memory buffer */ /* Return NZ on error */ -static int render2d_write(render2d *s, char *filename, int comprn) { +static int render2d_write( + render2d *s, + char *filename, /* Name of file for file output */ + int comprn, /* nz to use compression */ + unsigned char **obuf, /* pointer to returned buffer for mem output. Free after use */ + size_t *olen, /* pointer to returned length of data in buffer */ + rend_format fmt /* Output format, tiff/png, file/memory */ +) { TIFF *wh = NULL; uint16 samplesperpixel = 0, bitspersample = 0; uint16 extrasamples = 0; /* Extra "alpha" samples */ @@ -166,9 +311,19 @@ static int render2d_write(render2d *s, char *filename, int comprn) { uint16 photometric = 0; uint16 inkset = 0xffff; char *inknames = NULL; - tdata_t *outbuf; - unsigned char *tempbuf = NULL; /* 16 bit buffer for dithering */ + tdata_t *outbuf = NULL; + + FILE *png_fp = NULL; + png_mem_info png_minfo = { NULL, 0, 0 }; + png_structp png_ptr = NULL; + png_infop png_info = NULL; + png_uint_32 png_width = 0, png_height = 0; + int png_bit_depth = 0, png_color_type = 0; + int png_samplesperpixel = 0; + + unsigned char *dithbuf16 = NULL; /* 16 bit buffer for dithering */ thscreens *screen = NULL; /* dithering object */ + int foundfg; /* Found a forground object in this line */ prim2d *th, **pthp; prim2d **xlist, **ylist; /* X, Y sorted start lists */ int xli, yli; /* Indexes into X, Y list */ @@ -181,96 +336,232 @@ static int render2d_write(render2d *s, char *filename, int comprn) { double rx0, rx1, ry0, ry1; /* Box being processed, newest sample is rx1, ry1 */ int x, y; /* Pixel x & y index */ +#ifdef CCTEST_PATTERN // For testing by making screen visible +#pragma message("######### render.c TEST_PATTERN defined ! ##") + int do_test_pattern = 0; + + if (getenv("ARGYLL_CCAST_TEST_PATTERN") != NULL) { + verbose(0, "Substituting ChromeCast test pattern\n"); + do_test_pattern = 1; + } else { + static int verbed = 0; + if (!verbed) { + verbose(0, "Set ARGYLL_CCAST_TEST_PATTERN to enable test pattern\n"); + verbed = 1; + } + } +#endif + if ((so = new_sobol(2)) == NULL) return 1; - switch (s->csp) { - case w_2d: /* Video style grey */ - samplesperpixel = 1; - photometric = PHOTOMETRIC_MINISBLACK; - break; - case k_2d: /* Printing style grey */ - samplesperpixel = 1; - photometric = PHOTOMETRIC_MINISWHITE; - break; - case lab_2d: /* TIFF CIE L*a*b* */ - samplesperpixel = 3; - photometric = PHOTOMETRIC_CIELAB; - break; - case rgb_2d: /* RGB */ - samplesperpixel = 3; - photometric = PHOTOMETRIC_RGB; - break; - case cmyk_2d: /* CMYK */ - samplesperpixel = 4; - photometric = PHOTOMETRIC_SEPARATED; - inkset = INKSET_CMYK; - inknames = "cyan\000magenta\000yellow\000\000"; - break; - case ncol_2d: /* N color */ - samplesperpixel = s->ncc; - extrasamples = 0; - photometric = PHOTOMETRIC_SEPARATED; - inkset = 0; // ~~99 should fix this - inknames = NULL; // ~~99 should fix this - break; - case ncol_a_2d: /* N color with extras in alpha */ - samplesperpixel = s->ncc; - extrasamples = 0; - if (samplesperpixel > 4) { - extrasamples = samplesperpixel - 4; /* Call samples > 4 "alpha" samples */ - for (j = 0; j < extrasamples; j++) - extrainfo[j] = EXTRASAMPLE_UNASSALPHA; + if (fmt == tiff_file) { + switch (s->csp) { + case w_2d: /* Video style grey */ + samplesperpixel = 1; + photometric = PHOTOMETRIC_MINISBLACK; + break; + case k_2d: /* Printing style grey */ + samplesperpixel = 1; + photometric = PHOTOMETRIC_MINISWHITE; + break; + case lab_2d: /* TIFF CIE L*a*b* */ + samplesperpixel = 3; + photometric = PHOTOMETRIC_CIELAB; + break; + case rgb_2d: /* RGB */ + samplesperpixel = 3; + photometric = PHOTOMETRIC_RGB; + break; + case cmyk_2d: /* CMYK */ + samplesperpixel = 4; + photometric = PHOTOMETRIC_SEPARATED; + inkset = INKSET_CMYK; + inknames = "cyan\000magenta\000yellow\000\000"; + break; + case ncol_2d: /* N color */ + samplesperpixel = s->ncc; + extrasamples = 0; + photometric = PHOTOMETRIC_SEPARATED; + inkset = 0; // ~~99 should fix this + inknames = NULL; // ~~99 should fix this + break; + case ncol_a_2d: /* N color with extras in alpha */ + samplesperpixel = s->ncc; + extrasamples = 0; + if (samplesperpixel > 4) { + extrasamples = samplesperpixel - 4; /* Call samples > 4 "alpha" samples */ + for (j = 0; j < extrasamples; j++) + extrainfo[j] = EXTRASAMPLE_UNASSALPHA; + } + photometric = PHOTOMETRIC_SEPARATED; + inkset = 0; // ~~99 should fix this + inknames = NULL; // ~~99 should fix this + break; + default: + error("render2d: Illegal colorspace for TIFF file '%s'",filename); + } + if (samplesperpixel != s->ncc) + error("render2d: mismatched number of color components"); + + switch (s->dpth) { + case bpc8_2d: /* 8 bits per component */ + bitspersample = 8; + break; + case bpc16_2d: /* 16 bits per component */ + bitspersample = 16; + break; + default: + error("render2d: Illegal bits per component for TIFF file '%s'",filename); + } + + if ((wh = TIFFOpen(filename, "w")) == NULL) + error("render2d: Can\'t create TIFF file '%s'!",filename); + + TIFFSetField(wh, TIFFTAG_IMAGEWIDTH, s->pw); + TIFFSetField(wh, TIFFTAG_IMAGELENGTH, s->ph); + TIFFSetField(wh, TIFFTAG_ORIENTATION, ORIENTATION_TOPLEFT); + TIFFSetField(wh, TIFFTAG_SAMPLESPERPIXEL, samplesperpixel); + TIFFSetField(wh, TIFFTAG_BITSPERSAMPLE, bitspersample); + TIFFSetField(wh, TIFFTAG_PLANARCONFIG, PLANARCONFIG_CONTIG); + TIFFSetField(wh, TIFFTAG_PHOTOMETRIC, photometric); + if (extrasamples > 0) + TIFFSetField(wh, TIFFTAG_EXTRASAMPLES, extrasamples, extrainfo); + + if (inknames != NULL) { + int inlen = zzstrlen(inknames); + TIFFSetField(wh, TIFFTAG_INKSET, inkset); + TIFFSetField(wh, TIFFTAG_INKNAMES, inlen, inknames); + } + TIFFSetField(wh, TIFFTAG_COMPRESSION, COMPRESSION_NONE); + TIFFSetField(wh, TIFFTAG_RESOLUTIONUNIT, RESUNIT_CENTIMETER); + TIFFSetField(wh, TIFFTAG_XRESOLUTION, 10.0 * s->hres); /* Cvt. to pixels/cm */ + TIFFSetField(wh, TIFFTAG_YRESOLUTION, 10.0 * s->vres); + TIFFSetField(wh, TIFFTAG_XPOSITION, 0.1 * s->lm); /* Cvt. to cm */ + TIFFSetField(wh, TIFFTAG_YPOSITION, 0.1 * s->tm); + if (comprn) { + TIFFSetField(wh, TIFFTAG_COMPRESSION, COMPRESSION_LZW); + } + TIFFSetField(wh, TIFFTAG_IMAGEDESCRIPTION, "Test chart created with Argyll"); + + /* Allocate one TIFF line buffer */ + outbuf = _TIFFmalloc(TIFFScanlineSize(wh)); + + } else if (fmt == png_file + || fmt == png_mem) { + char *nmode = "w"; + +#if !defined(O_CREAT) && !defined(_O_CREAT) +# error "Need to #include fcntl.h!" +#endif +#if defined(O_BINARY) || defined(_O_BINARY) + nmode = "wb"; +#endif + png_width = s->pw; + png_height = s->ph; + + switch (s->dpth) { + case bpc8_2d: /* 8 bits per component */ + png_bit_depth = 8; + break; + case bpc16_2d: /* 16 bits per component */ + png_bit_depth = 16; + break; + default: + error("render2d: Illegal bits per component for PNG file '%s'",filename); + } + + switch (s->csp) { + case w_2d: /* Video style grey */ + png_color_type = PNG_COLOR_TYPE_GRAY; + png_samplesperpixel = 1; + break; + case rgb_2d: /* RGB */ + png_color_type = PNG_COLOR_TYPE_RGB; + png_samplesperpixel = 3; + break; + default: + error("render2d: Illegal colorspace for PNG file '%s'",filename); + } + + if (fmt == png_file) { + if ((png_fp = fopen(filename, nmode)) == NULL) + error("render2d: Can\'t create PNG file '%s'!",filename); + } + + if ((png_ptr = png_create_write_struct(PNG_LIBPNG_VER_STRING, + NULL, NULL, NULL)) == NULL) + error("render2d: png_create_write_struct failed"); + + if (fmt == png_file) { + png_init_io(png_ptr, png_fp); + } + + if ((png_info = png_create_info_struct(png_ptr)) == NULL) { + png_destroy_write_struct(&png_ptr, &png_info); + error("render2d: png_create_info_struct failed"); + } + + if (setjmp(png_jmpbuf(png_ptr))) { + a1loge(g_log, 1, "%s -> %s: render2d libpng write error\n", filename); + png_destroy_info_struct(png_ptr, &png_info); + png_destroy_write_struct(&png_ptr, &png_info); + if (png_fp != NULL) + fclose(png_fp); + else { + free(png_minfo.buf); } - photometric = PHOTOMETRIC_SEPARATED; - inkset = 0; // ~~99 should fix this - inknames = NULL; // ~~99 should fix this - break; - default: - error("render2d: Illegal colorspace for file '%s'",filename); - } - if (samplesperpixel != s->ncc) - error("render2d: mismatched number of color components"); + return (1); + } - switch (s->dpth) { - case bpc8_2d: /* 8 bits per component */ - bitspersample = 8; - break; - case bpc16_2d: /* 16 bits per component */ - bitspersample = 16; - break; - default: - error("render2d: Illegal bits per component for file '%s'",filename); - } + if (fmt == png_mem) { + png_set_write_fn(png_ptr, &png_minfo, mem_write_data, mem_flush_data); + } - if ((wh = TIFFOpen(filename, "w")) == NULL) - error("render2d: Can\'t create TIFF file '%s'!",filename); - - TIFFSetField(wh, TIFFTAG_IMAGEWIDTH, s->pw); - TIFFSetField(wh, TIFFTAG_IMAGELENGTH, s->ph); - TIFFSetField(wh, TIFFTAG_ORIENTATION, ORIENTATION_TOPLEFT); - TIFFSetField(wh, TIFFTAG_SAMPLESPERPIXEL, samplesperpixel); - TIFFSetField(wh, TIFFTAG_BITSPERSAMPLE, bitspersample); - TIFFSetField(wh, TIFFTAG_PLANARCONFIG, PLANARCONFIG_CONTIG); - TIFFSetField(wh, TIFFTAG_PHOTOMETRIC, photometric); - if (extrasamples > 0) - TIFFSetField(wh, TIFFTAG_EXTRASAMPLES, extrasamples, extrainfo); - - if (inknames != NULL) { - int inlen = zzstrlen(inknames); - TIFFSetField(wh, TIFFTAG_INKSET, inkset); - TIFFSetField(wh, TIFFTAG_INKNAMES, inlen, inknames); - } - TIFFSetField(wh, TIFFTAG_COMPRESSION, COMPRESSION_NONE); - TIFFSetField(wh, TIFFTAG_RESOLUTIONUNIT, RESUNIT_CENTIMETER); - TIFFSetField(wh, TIFFTAG_XRESOLUTION, 10.0 * s->hres); /* Cvt. to pixels/cm */ - TIFFSetField(wh, TIFFTAG_YRESOLUTION, 10.0 * s->vres); - TIFFSetField(wh, TIFFTAG_XPOSITION, 0.1 * s->lm); /* Cvt. to cm */ - TIFFSetField(wh, TIFFTAG_YPOSITION, 0.1 * s->tm); - if (comprn) { - TIFFSetField(wh, TIFFTAG_COMPRESSION, COMPRESSION_LZW); + png_set_IHDR(png_ptr, png_info, png_width, png_height, png_bit_depth, + png_color_type, PNG_INTERLACE_NONE, PNG_COMPRESSION_TYPE_BASE, PNG_FILTER_TYPE_BASE); + + + /* pix/mm to pix/meter */ + png_set_pHYs(png_ptr, png_info, (png_uint_32)(1000.0 * s->hres + 0.5), + (png_uint_32)(1000.0 * s->vres + 0.5), + PNG_RESOLUTION_METER); + + /* mm to um */ + png_set_oFFs(png_ptr, png_info, (png_uint_32)(1000.0 * 0.1 * s->lm), + (png_uint_32)(1000.0 * s->tm), PNG_OFFSET_MICROMETER); + + { + png_text txt; + txt.compression = PNG_TEXT_COMPRESSION_NONE; + txt.key = "Description"; + txt.text = "Test chart created with Argyll"; + txt.text_length = strlen(txt.text); +#ifdef PNG_iTXt_SUPPORTED + txt.itxt_length = 0; + txt.lang = NULL; + txt.lang_key = NULL; +#endif + png_set_text(png_ptr, png_info, &txt, 1); + } + + /* Write the header */ + png_write_info(png_ptr, png_info); + + /* PNG expects network (BE) 16 bit values */ + if (png_bit_depth == 16) { + png_uint_16 tt = 0x0001; + if (*((unsigned char *)&tt) == 0x01) /* Little endian */ + png_set_swap(png_ptr); + } + + /* Allocate one PNG line buffer */ + if ((outbuf = malloc((png_bit_depth >> 3) * png_samplesperpixel * s->pw) ) == NULL) + error("malloc of PNG line buffer failed"); + + } else { + error("render2d: Illegal output format %d",fmt); } - TIFFSetField(wh, TIFFTAG_IMAGEDESCRIPTION, "Test chart created with Argyll"); /* Allocate pixel value storage for aliasing detection */ if ((_pixv0 = malloc(sizeof(color2d) * (s->pw+2))) == NULL) @@ -280,23 +571,24 @@ static int render2d_write(render2d *s, char *filename, int comprn) { return 1; pixv1 = _pixv1+1; - /* Allocate one TIFF line buffer */ - outbuf = _TIFFmalloc(TIFFScanlineSize(wh)); - if (s->dpth == bpc8_2d && s->dither) { -#ifdef NEVER // For testing by making screen visible -# define LEVELS 16 +#ifdef TEST_SCREENING // For testing by making screen visible +#pragma message("######### render TEST_SCREENING defined! ##") +# define LEVELS 4 int i, olevs[LEVELS]; - for (i = 0; i < LEVELS; i++) + for (i = 0; i < LEVELS; i++) { olevs[i] = (int)(i/(LEVELS-1.0) * 255.0 + 0.5); + } if ((screen = new_thscreens(0, s->ncc, 1.0, 79, scie_16, 8, LEVELS, olevs, - scoo_l, 0.1, NULL, NULL)) == NULL) + scoo_l, OVERLAP, s->pw, NULL, NULL, + s->dither == 2 ? 1 : 0, s->quant, s->qcntx)) == NULL) #else if ((screen = new_thscreens(0, s->ncc, 1.0, 79, scie_16, 8, 256, NULL, - scoo_l, 0.1, NULL, NULL)) == NULL) + scoo_l, OVERLAP, s->pw, NULL, NULL, + s->dither == 2 ? 1 : 0, s->quant, s->qcntx)) == NULL) #endif return 1; - if ((tempbuf = malloc(s->pw * s->ncc * 2)) == NULL) + if ((dithbuf16 = malloc(s->pw * s->ncc * 2)) == NULL) return 1; } @@ -323,12 +615,14 @@ static int render2d_write(render2d *s, char *filename, int comprn) { yli = 0; s->yl = NULL; - /* Render each line and write it. */ + /* Render each line and write it, in raster order. */ /* We sample +- half a pixel around the pixel we want. */ /* We make the active element list encompass this region, */ /* so that we can super sample it for anti-aliasing. */ for (y = -1; y < s->ph; y++) { + foundfg = 0; + /* Convert to coordinate order */ ry0 = (((s->ph-1) - y) - 0.5) / s->vres; ry1 = (((s->ph-1) - y) + 0.5) / s->vres; @@ -389,6 +683,8 @@ static int render2d_write(render2d *s, char *filename, int comprn) { *pthp = th->xl; th = th->xl; } else { +//printf("x %d y %d, rx1 %f, ry0 %f\n",x,y,rx1, ry0); + if (th->rend(th, rv, rx1, ry0) && th->ix > pixv1[x][PRIX2D]) { /* Overwrite the current color */ /* (This is where we should handle depth and opacity */ @@ -400,7 +696,7 @@ static int render2d_write(render2d *s, char *filename, int comprn) { th = th->xl; } } - /* Check if anti-aliasing is neded for previous lines previous pixel */ + /* Check if anti-aliasing is needed for previous lines previous pixel */ if (y >= 0 && x >= 0) { color2d cc; @@ -409,15 +705,17 @@ static int render2d_write(render2d *s, char *filename, int comprn) { cc[PRIX2D] = pixv1[x][PRIX2D]; /* See if anti aliasing is needed */ - if ((pixv0[x+0][PRIX2D] != cc[PRIX2D] && colordiff(s, pixv0[x+0], cc)) - || (pixv0[x-1][PRIX2D] != cc[PRIX2D] && colordiff(s, pixv0[x-1], cc)) - || (pixv1[x-1][PRIX2D] != cc[PRIX2D] && colordiff(s, pixv1[x-1], cc))) { + if (!s->noavg + && ((pixv0[x+0][PRIX2D] != cc[PRIX2D] && colordiff(s, pixv0[x+0], cc)) + || (pixv0[x-1][PRIX2D] != cc[PRIX2D] && colordiff(s, pixv0[x-1], cc)) + || (pixv1[x-1][PRIX2D] != cc[PRIX2D] && colordiff(s, pixv1[x-1], cc)))) { double nn = 0; so->reset(so); for (j = 0; j < s->ncc; j++) cc[j] = 0.0; + cc[PRIX2D] = -1; /* Compute the sample value by re-sampling the region */ /* around the pixel. */ @@ -447,6 +745,8 @@ static int render2d_write(render2d *s, char *filename, int comprn) { } for (j = 0; j < s->ncc; j++) cc[j] += pow(ccc[j], MIXPOW); + if (ccc[PRIX2D] > cc[PRIX2D]) + cc[PRIX2D] = ccc[PRIX2D]; /* Note if not BG */ } for (j = 0; j < s->ncc; j++) cc[j] = pow(cc[j]/nn, 1.0/MIXPOW); @@ -456,6 +756,12 @@ static int render2d_write(render2d *s, char *filename, int comprn) { cc[1] = 0.0; cc[2] = 1.0; #endif + } else if (s->noavg) { + /* Compute output value directly from primitive */ + + for (j = 0; j < s->ncc; j++) + cc[j] = cc[j]; + } else { /* Compute output value as mean of surrounding samples */ @@ -465,14 +771,24 @@ static int render2d_write(render2d *s, char *filename, int comprn) { + pixv0[x][j] + pixv1[x-1][j]; cc[j] = cc[j] * 0.25; - } + /* Note if not BG */ + if (pixv0[x-1][PRIX2D] > cc[PRIX2D]) + cc[PRIX2D] = pixv0[x-1][PRIX2D]; + if (pixv0[x][PRIX2D] > cc[PRIX2D]) + cc[PRIX2D] = pixv0[x][PRIX2D]; + if (pixv1[x-1][PRIX2D] > cc[PRIX2D]) + cc[PRIX2D] = pixv1[x-1][PRIX2D]; } + if (cc[PRIX2D] != -1) /* Line is no longer background */ + foundfg = 1; /* Translate from render value to output pixel value */ if (s->dpth == bpc8_2d) { + /* if dithering and dithering all or found FG in line */ if (s->dither) { - unsigned short *p = ((unsigned short *)tempbuf) + x * s->ncc; + unsigned short *p = ((unsigned short *)dithbuf16) + x * s->ncc; + if (s->csp == lab_2d) { cvt_Lab_to_CIELAB16(cc, cc); for (j = 0; j < s->ncc; j++) @@ -507,12 +823,81 @@ static int render2d_write(render2d *s, char *filename, int comprn) { } if (y >= 0) { - if (s->dpth == bpc8_2d && s->dither) - screen->screen(screen, s->pw, 1, 0, y, tempbuf, s->pw * s->ncc * 2, - (unsigned char *)outbuf, s->pw * s->ncc); + /* if dithering and dithering all or found FG in line */ + if (s->dpth == bpc8_2d && s->dither) { + // If we need to screen this line + if (!s->dithfgo || foundfg) { + /* If we are dithering only the foreground colors, */ + /* Subsitute the quantized un-dithered color for any */ + /* pixels soley from the background */ + if (s->dithfgo) { + int st, ed; + unsigned short *ip = ((unsigned short *)dithbuf16); + unsigned char *op = ((unsigned char *)outbuf); + + /* Copy pixels up to first non-BG */ + for (x = 0; x < s->pw; x++, ip += s->ncc, op += s->ncc) { + if (pixv1[x][PRIX2D] == -1) { + for (j = 0; j < s->ncc; j++) + op[j] = (ip[j] * 255 + 128)/65535; + } else { + st = x; + break; + } + } + if (x < s->pw) { /* If there are FG pixels */ + + /* Copy down to first non-BG */ + ip = ((unsigned short *)dithbuf16) + (s->pw-1) * s->ncc; + op = ((unsigned char *)outbuf) + (s->pw-1) * s->ncc; + for (x = s->pw-1; x > st; x--, ip -= s->ncc, op -= s->ncc) { + if (pixv1[x][PRIX2D] == -1) { + for (j = 0; j < s->ncc; j++) + op[j] = (ip[j] * 255 + 128)/65535; + } else { + ed = x; + break; + } + } + /* Screen just the FG pixels */ + ip = ((unsigned short *)dithbuf16) + st * s->ncc; + op = ((unsigned char *)outbuf) + st * s->ncc; + screen->screen(screen, ed-st+1, 1, st, y, + op, s->pw * s->ncc, + (unsigned char*)ip, s->pw * s->ncc); + } + + /* Dither/screen the whole lot */ + } else { + screen->screen(screen, s->pw, 1, 0, y, + (unsigned char *)outbuf, s->pw * s->ncc, + dithbuf16, s->pw * s->ncc); + } + // Don't need to screen this line - quantize from 16 bit + } else { + unsigned short *ip = ((unsigned short *)dithbuf16); + unsigned char *op = ((unsigned char *)outbuf); + for (x = 0; x < s->pw; x++, ip += s->ncc, op += s->ncc) { + for (j = 0; j < s->ncc; j++) + op[j] = (ip[j] * 255 + 128)/65535; + } + } + } - if (TIFFWriteScanline(wh, outbuf, y, 0) < 0) - error ("Failed to write TIFF file '%s' line %d",filename,y); +#ifdef CCTEST_PATTERN // Substitute the testing pattern + if (do_test_pattern) { + for (x = 0; x < s->pw; x++) + test_value(s, outbuf, x, y); + } +#endif + if (fmt == tiff_file) { + if (TIFFWriteScanline(wh, outbuf, y, 0) < 0) + error ("Failed to write TIFF file '%s' line %d",filename,y); + } else if (fmt == png_file + || fmt == png_mem) { + png_bytep pixdata = (png_bytep)outbuf; + png_write_rows(png_ptr, &pixdata, 1); + } } /* Shuffle the pointers */ @@ -529,12 +914,29 @@ static int render2d_write(render2d *s, char *filename, int comprn) { free(_pixv0); free(_pixv1); - if (tempbuf != NULL) - free(tempbuf); + if (dithbuf16 != NULL) + free(dithbuf16); if (screen != NULL) screen->del(screen); - _TIFFfree(outbuf); - TIFFClose(wh); /* Close Output file */ + + if (fmt == tiff_file) { + _TIFFfree(outbuf); + TIFFClose(wh); /* Close Output file */ + + } else if (fmt == png_file + || fmt == png_mem) { + + free(outbuf); + png_write_end(png_ptr, NULL); +// png_destroy_info_struct(png_ptr, &png_info); + png_destroy_write_struct(&png_ptr, &png_info); + if (fmt == png_file) { + fclose(png_fp); + } else if (fmt == png_mem) { + *obuf = png_minfo.buf; + *olen = png_minfo.off; + } + } so->del(so); @@ -551,7 +953,9 @@ double vres, /* horizontal resolution in pixels/mm */ colort2d csp, /* Color type */ int nd, /* Number of channels if c = ncol */ depth2d dpth, /* Pixel depth */ -int dither /* Dither flag */ +int dither, /* Dither flag, 1 = ordered, 2 = error diffusion, | 0x8000 to dither FG only */ +void (*quant)(void *qcntx, double *out, double *in), /* optional quantization func. for edith */ +void *qcntx ) { render2d *s; @@ -577,7 +981,11 @@ int dither /* Dither flag */ s->vres = vres; s->csp = csp; s->dpth = dpth; - s->dither = dither; + s->dither = 0x0fff & dither; + s->noavg = 0x4000 & dither; + s->dithfgo = 0x8000 & dither; + s->quant = quant; + s->qcntx = qcntx; s->del = render2d_del; s->set_defc = render2d_set_defc; @@ -637,13 +1045,31 @@ static int rect2d_rend(prim2d *ss, color2d rv, double x, double y) { || x < s->rx0 || x > s->rx1) return 0; - for (j = 0; j < s->ncc; j++) - rv[j] = s->c[j]; + if (s->dpat == NULL) { + for (j = 0; j < s->ncc; j++) + rv[j] = s->c[j]; + + /* We have a dither pattern */ + } else { + int xi = ((int)floor(x)) % s->dp_w; + int yi = ((int)floor(y)) % s->dp_h; + double *val = (*s->dpat)[xi][yi]; + for (j = 0; j < s->ncc; j++) + rv[j] = val[j]; + } + rv[PRIX2D] = s->ix; return 1; } +static void rect2d_del(prim2d *ss) { + rect2d *s = (rect2d *)ss; + if (s->dpat != NULL) + free(s->dpat); + prim2d_del(ss); +} + prim2d *new_rect2d( render2d *ss, double x, @@ -664,7 +1090,7 @@ color2d c y -= ss->bm; s->ncc = ss->ncc; - s->del = prim2d_del; + s->del = rect2d_del; s->rend = rect2d_rend; /* Set bounding box */ @@ -685,6 +1111,13 @@ color2d c return (prim2d *)s; } +/* Allocate pat using malloc(sizeof(double) * MXPATSIZE * MXPATSIZE * TOTC2D) */ +void set_rect2d_dpat(rect2d *s, double (*pat)[MXPATSIZE][MXPATSIZE][TOTC2D], int w, int h) { + s->dpat = pat; + s->dp_w = w; + s->dp_h = h; +} + /* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */ /* Vertex shaded rectangle */ @@ -1039,7 +1472,8 @@ color2d c /* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */ -/* Primitive Macros. */ +/* Primitive Macros. These shapes are composed of */ +/* underlying primitives */ /* add a dashed line */ void add_dashed_line2d( diff --git a/render/render.h b/render/render.h index e7bcdee..c060ebc 100644 --- a/render/render.h +++ b/render/render.h @@ -10,7 +10,7 @@ * Author: Graeme W. Gill * Date: 28/12/2005 * - * Copyright 2005, 2008, 2012 Graeme W. Gill + * Copyright 2005, 2008, 2012, 2014 Graeme W. Gill * All rights reserved. * * This material is licenced under the GNU AFFERO GENERAL PUBLIC LICENSE Version 3 :- @@ -28,7 +28,9 @@ #define MXCH2D 8 /* Maximum color channels */ #define TOTC2D (MXCH2D+1) /* Maximum total components */ -#define PRIX2D (MXCH2D) /* Index of primitive */ +#define PRIX2D (MXCH2D) /* Index of primitive kept with color value */ + +#define MXPATSIZE 4 /* Maximum color pattern size */ /* Color type */ /* Shouldn't this be an xcolorants mask ? */ @@ -55,7 +57,7 @@ typedef enum { rowman_s = 0, /* Rownman, single stroke */ rowman_d = 1, /* Rownman, double stroke */ rowman_t = 2, /* Rownman, triple stroke */ - timesr = 3, /* Times Roman */ + timesr = 3, /* Times Roman */ timesr_b = 4, /* Times Roman, Bold */ futura_l = 5, /* Futura, Light */ futura_m = 6 /* Futura, Medium */ @@ -87,11 +89,15 @@ struct _prim2d { struct _rect2d { PRIM_STRUCT double rx0, ry0, rx1, ry1; /* Rectangle verticies */ - color2d c; /* Color of rectangle */ + color2d c; /* Color of rectangle (if dpat == NULL) */ + double (*dpat)[MXPATSIZE][MXPATSIZE][TOTC2D]; + int dp_w, dp_h; }; typedef struct _rect2d rect2d; prim2d *new_rect2d(struct _render2d *s, double x, double y, double w, double h, color2d c); +void set_rect2d_dpat(struct _rect2d *s, double (*pat)[MXPATSIZE][MXPATSIZE][TOTC2D], int w, int h); + /* ------------------------------------ */ /* Vertex shaded rectange */ struct _rectvs2d { @@ -145,7 +151,7 @@ color2d c); /* Add a text character at the given location using lines */ void add_char2d( struct _render2d *s, -double *xinc, /* Add increment to next character */ +double *xinc, /* Return increment in position for next character */ double *yinc, font2d fo, /* Font to use */ char ch, /* Character code to be printed */ @@ -158,7 +164,7 @@ color2d c /* Color of text */ /* Add a string from the given location using lines. */ void add_string2d( struct _render2d *s, -double *xinc, /* Add increment to next character */ +double *xinc, /* Return increment in position for next character */ double *yinc, font2d fo, /* Font to use */ char *string, /* Character code to be printed */ @@ -171,7 +177,7 @@ color2d c /* Color of text */ /* Return the total width of the string without adding it */ void meas_string2d( struct _render2d *s, -double *xinc, /* Add increment to next character */ +double *xinc, /* Return increment in position for next character */ double *yinc, font2d fo, /* Font to use */ char *string, /* Character code to be printed */ @@ -179,6 +185,15 @@ double h, /* Height of text in normal orientation */ int or /* Orintation, 0 = right, 1 = down, 2 = left, 3 = up */ ); +/* ------------------------------------ */ + +/* Type of output to save to. */ +typedef enum { + tiff_file, /* Write a TIFF format file */ + png_file, /* Write a PNG format file */ + png_mem /* Write a PNG image to a memory buffer */ +} rend_format; + /* ------------------------------------ */ /* Render object */ @@ -194,7 +209,11 @@ struct _render2d { colort2d csp; /* Color space */ int ncc; /* Number of color components */ depth2d dpth; /* Depth of the components */ - int dither; /* Dither flag */ + int dither; /* Dither flag, 1 = ordered, 2 = error diffusion */ + int noavg; /* Don't anti-alias or average 4 pixels together */ + int dithfgo; /* Dither F.G. only flag */ + void (*quant)(void *qcntx, double *out, double *in); /* optional quantization func. for edith */ + void *qcntx; color2d defc; /* Default color value */ @@ -218,8 +237,10 @@ struct _render2d { void (*add)(struct _render2d *s, prim2d *p); /* Add a primitive */ - int (*write)(struct _render2d *s, char *filename, int comprn); - /* Render and write to a TIFF file */ + int (*write)(struct _render2d *s, char *filename, int comprn, + unsigned char **obuf, size_t *olen, + rend_format fmt); + /* Render and write to a TIFF or PNG file */ }; typedef struct _render2d render2d; /* Constructor */ @@ -232,7 +253,10 @@ render2d *new_render2d( colort2d csp, /* Color type */ int nd, /* Number of channels if c = ncol */ depth2d dpth, /* Pixel depth */ - int dither /* Dither flag */ + int dither, /* Dither flag, 1 = ordered, 2 = error diffusion, | 0x8000 to dither FG only */ + /* | 0x4000 don't anti-alias by averaging pixels together. */ + void (*quant)(void *qcntx, double *out, double *in), /* optional quantization func. for edith */ + void *qcntx ); #endif /* RENDER2D_H */ diff --git a/render/thscreen.c b/render/thscreen.c index c0a5548..8523e38 100644 --- a/render/thscreen.c +++ b/render/thscreen.c @@ -2,7 +2,7 @@ /* * render2d * - * Threshold screen pixel processing object. + * Threshold or Error diffusion screen pixel processing object. * (Simplified from DPS code) * * Author: Graeme W. Gill @@ -32,6 +32,8 @@ /* Configuration: */ #undef DEBUG +#undef CHECK_EXPECTED_ED_LEVELS /* Output expected quantized levels for checkking */ + /* ----------------------------------------------------------- */ #ifdef DEBUG @@ -46,29 +48,190 @@ #include "screens.h" /* Pre-generated screen patterns */ -/* Screen a single color plane */ -void screen_thscreens( /* Pointer to dither function */ +/* Threshold screen lines of multiplane pixels */ +void screen_thscreens( thscreens *t, /* Screening object pointer */ int width, int height, /* Width and height to screen in pixels */ int xoff, int yoff, /* Offset into screening pattern */ - unsigned char *in, /* Input pixel buffer */ - unsigned long ipitch, /* Increment between input lines */ unsigned char *out, /* Output pixel buffer */ - unsigned long opitch /* Increment between output lines */ + unsigned long opitch, /* Increment between output lines in components */ + unsigned char *in, /* Input pixel buffer */ + unsigned long ipitch /* Increment between input lines in components */ ) { int i; for (i = 0; i < t->np; i++) - t->sc[i]->screen(t->sc[i], width, height, xoff, yoff, in + 2 * i, t->np, ipitch, - out + i, t->np, opitch); + t->sc[i]->screen(t->sc[i], width, height, xoff, yoff, + out + i, t->np, opitch, + in + 2 * i, t->np, ipitch); +} + +/* Error diffusion screen lines of multiplane pixels */ +void screen_edscreens( + thscreens *t, /* Screening object pointer */ + int width, int height, /* Width and height to screen in pixels */ + int xoff, int yoff, /* Offset into screening pattern, [xoff + width < mxwidth] */ + unsigned char *out, /* Output pixel buffer */ + unsigned long opitch, /* Increment between output lines in components */ + unsigned char *_in, /* Input pixel buffer */ + unsigned long ipitch /* Increment between input lines in components */ +) { + unsigned short *in = (unsigned short *)_in; /* Pointer to input pixel sized values */ + unsigned short *ein = in + height * ipitch; /* Vertical end pixel marker */ + unsigned short *ein1; /* Horizontal end pixel markers */ + int xo, yo; /* Threshold screen offset */ + int x, j; + + /* Limit width to mxwidth */ + if ((xoff + width) > t->mxwidth) { + width = t->mxwidth - xoff; + if (width < 0) + return; + } + + /* If not sequential, clear error buffer */ + if (yoff != (t->lastyoff+1)) { + for (x = -1; x <= t->mxwidth; x++) { + for (j = 0; j < t->np; j++) + t->ebuf[j][x] = 0.0; + } + } + + /* Clear "next to right" error */ + for (j = 0; j < t->np; j++) { + t->ebuf[j][-2] = 0.0; + } + + t->lastyoff = yoff; + + /* For each line: */ + for (; in < ein; in += ipitch, ein1 += ipitch, out += opitch, yoff++) { + unsigned short *ip; /* Horizontal input pointer */ + unsigned char *op; /* Horizontal output pointer */ + int xinc, pinc; + + /* Do in serpentine order */ + if (yoff & 1) { + xinc = -1; + x = xoff + width-1; /* x is index into error buffer */ + pinc = -t->np; + ein1 = in + pinc; + ip = in + t->np * (width-1); + op = out + t->np * (width-1); + } else { + xinc = 1; + x = xoff; + pinc = t->np; + ein1 = in + t->np * width; + ip = in; + op = out; + } + + /* For each pixel */ + for (; ip != ein1; ip += pinc, op += pinc, x += xinc) { + double ov[THMXCH2D], tv[THMXCH2D], ev[THMXCH2D]; + + /* For each plane */ + for (j = 0; j < t->np; j++) { + tv[j] = t->luts[j][ip[j]] / 65535.0; /* 0.0 - 1.0 value */ + + /* Value + accumulated error */ + ov[j] = tv[j] = tv[j] + t->ebuf[j][x]; + + /* Limit */ + if (ov[j] > 1.0) + ov[j] = 1.0; + else if (ov[j] < 0.0) + ov[j] = 0.0; + + /* Output encode */ + op[j] = t->oevalues[(int)(ov[j] * (t->oelev-1.0) + 0.5)]; + } + +#ifdef CHECK_EXPECTED_ED_LEVELS +#pragma message("######### render/thscreen.c CHECK_EXPECTED_ED_LEVELS defined ! ##") + // Put expected values in output to check levels + t->quant(t->qcntx, ev, ov); + for (j = 0; j < t->np; j++) + op[j] = t->oevalues[(int)(ev[j] * (t->oelev-1.0) + 0.5)]; +#endif + + /* Quantize to values that it actually will be */ + if (t->quant != NULL) + t->quant(t->qcntx, ov, ov); + else { + for (j = 0; j < t->np; j++) + ov[j] = floor(ov[j] * (t->oelev-1) + 0.5)/(t->oelev-1.0); + } + + /* Compute the error to the target */ + for (j = 0; j < t->np; j++) { + + /* Error to target */ + ev[j] = tv[j] - ov[j]; + } + + /* Distribute the error */ + for (j = 0; j < t->np; j++) { +#ifdef NEVER + /* Classic error diffusion */ + t->ebuf[j][x-xinc] += 0.1875 * ev[j]; /* Lower left */ + t->ebuf[j][x] = t->ebuf[j][-2] + 0.3125 * ev[j]; /* Lower */ + t->ebuf[j][-2] = 0.0625 * ev[j]; /* Lower right */ + t->ebuf[j][x+xinc] += 0.4375 * ev[j]; /* Right */ +#else + /* Using random placement error distribution */ + double rav; + int ii; + t->so->next(t->so, &rav); /* For some order */ + rav *= 4.0; + rav += d_rand(0.0, 2.5); /* For some randomness */ + ii = (int)(rav); + if (ii > 3) + ii -= 4; + t->ebuf[j][x] = t->ebuf[j][-2]; + t->ebuf[j][-2] = 0.0; + switch (ii) { + case 0: + t->ebuf[j][x-xinc] += ev[j]; /* Lower left */ + break; + case 1: + t->ebuf[j][x] += ev[j]; /* Lower */ + break; + case 2: + t->ebuf[j][-2] += ev[j]; /* Lower right */ + break; + case 3: + t->ebuf[j][x+xinc] += ev[j]; /* Right */ + break; + } +#endif + } + } + } } /* Delete a thscreens */ void del_thscreens(thscreens *t) { int i; - for (i = 0; i < t->np; i++) - t->sc[i]->del(t->sc[i]); - free(t->sc); + if (t->sc != NULL) { + for (i = 0; i < t->np; i++) { + if (t->sc[i] != NULL) + t->sc[i]->del(t->sc[i]); + } + free(t->sc); + } + if (t->ebuf != NULL) { + free_fmatrix(t->ebuf, 0, t->np-1, -2, t->mxwidth); + } + + if (t->luts != NULL) { + free_imatrix(t->luts, 0, t->np-1, 0, 65535); + } + + if (t->so != NULL) + t->so->del(t->so); + free(t); } @@ -77,7 +240,7 @@ thscreens *new_thscreens( int exact, /* Return only exact matches */ int nplanes, /* Number of planes to screen */ double asp, /* Target aspect ratio (== dpiX/dpiY) */ - int size, /* Target size */ + int size, /* Target screen size */ sc_iencoding ie, /* Input encoding - must be scie_16 */ int oebpc, /* Output encoding bits per component - must be 8 */ int oelev, /* Output encoding levels. Must be <= 2 ^ oebpc */ @@ -85,8 +248,12 @@ thscreens *new_thscreens( /* Must be oelev entries. Default is 0 .. oelev-1 */ sc_oorder oo, /* Output bit ordering */ double overlap, /* Overlap between levels, 0 - 1.0 */ + int mxwidth, /* max width in pixels of raster to be screened */ void **cntx, /* List of contexts for lookup table callback */ - double (**lutfunc)(void *cntx, double in) /* List of callback function, NULL if none */ + double (**lutfunc)(void *cntx, double in), /* List of callback functions, NULL if none */ + int edif, /* nz if using error diffusion */ + void (*quant)(void *qcntx, double *out, double *in), /* optional quantization func. for edif */ + void *qcntx ) { thscreens *t; int i, bi = -1; @@ -115,18 +282,40 @@ thscreens *new_thscreens( } t->np = nplanes; /* Number of planes */ + t->edif = edif; /* Error diffusion */ + t->quant = quant; /* Optional quantization function */ + t->qcntx = qcntx; - DBG(("thscreens no planes = %d\n",t->np)); + t->mxwidth = mxwidth; + t->lastyoff = -1; - t->screen = screen_thscreens; - t->del = del_thscreens; + /* Allocate and initialise a next line error buffer. */ + /* we allow 2 extra locations for pixels to the left and right of the current one: */ + /* [-1] for the one to the below left when we are at x = 0, */ + /* [-2] for the one below right, before we use [x] */ + if (t->edif) + t->ebuf = fmatrixz(0, t->np-1, -2, t->mxwidth); - if ((t->sc = malloc(sizeof(thscreen *) * t->np)) == NULL) { - free(t); - DBG(("thscreens: malloc of thscreens->sc[] failed\n")); - return NULL; + t->oebpc = oebpc; + t->oelev = oelev; + if (oevalues != NULL) { + for (i = 0; i < t->oelev; i++) { + if (oevalues[i] >= (1 << t->oebpc)) { + DBG(("new_thscreens() oevalues[%d] value %d can't fit in %d bits\n",i,oevalues[i],t->oebpc)); + free(t); + return NULL; + } + t->oevalues[i] = oevalues[i]; + } + } else { + for (i = 0; i < t->oelev; i++) + t->oevalues[i] = i; } + DBG(("thscreens no planes = %d\n",t->np)); + + t->del = del_thscreens; + DBG(("thscreens: searching amongst %d screens, exact = %d\n",NO_SCREENS,exact)); DBG(("thscreens: looking for non-exact match\n")); @@ -163,57 +352,96 @@ thscreens *new_thscreens( if (bi < 0) /* Strange */ return NULL; - /* Create each screening object from one defined screen. */ - /* Use the 0'th plane screen */ - /* Stagger the screens with a round of 9 offset */ - for (i = 0; i < t->np; i++) { - int xoff = ((i % 3) * screens[bi].width)/3; - int yoff = (((i/3) % 3) * screens[bi].height)/3; - void *cx = NULL; - double (*lf)(void *cntx, double in) = 0; - if (cntx != NULL) - cx = cntx[i]; - if (lutfunc != NULL) - lf = lutfunc[i]; - - DBG(("thscreens: creating plane %d/%d thscreen, offset %d %d\n",i,t->np,xoff,yoff)); - if ((t->sc[i] = new_thscreen(screens[bi].width, screens[bi].height, xoff, yoff, - screens[bi].asp, swap, screens[bi].list[0], - ie, oebpc, oelev, oevalues, oo, overlap, - cx, lf)) == NULL) { - for (--i; i >= 0; i--) - t->sc[i]->del(t->sc[i]); - free(t->sc); + if (t->edif) { + int j; + int npix; + + t->screen = screen_edscreens; + + t->luts = imatrix(0, t->np-1, 0, 65535); + + /* Create a suitable LUT from the given function */ + /* Input is either 8 or 16 bits, output is always 16 bits */ + for (j = 0; j < t->np; j++) { + for (i = 0; i < 65536; i++) { + if (lutfunc != NULL && lutfunc[j] != NULL) { + double v = i/65535.0; + v = lutfunc[j](cntx[j], v); + t->luts[j][i] = (int)(v * 65535.0 + 0.5); + } else + t->luts[j][i] = i; + } + } + + if ((t->so = new_sobol(1)) == NULL) { + DBG(("thscreens: new_sobol() failed\n")); + return NULL; + } + + + } else { + + t->screen = screen_thscreens; + + if ((t->sc = malloc(sizeof(thscreen *) * t->np)) == NULL) { free(t); - DBG(("thscreens: new_thscreen() failed\n")); + DBG(("thscreens: malloc of thscreens->sc[] failed\n")); return NULL; } + + /* Create each screening object from one defined screen. */ + /* Use the 0'th plane screen */ + /* Stagger the screens with a round of 9 offset */ + for (i = 0; i < t->np; i++) { + int xoff = ((i % 3) * screens[bi].width)/3; + int yoff = (((i/3) % 3) * screens[bi].height)/3; + void *cx = NULL; + double (*lf)(void *cntx, double in) = 0; + if (cntx != NULL) + cx = cntx[i]; + if (lutfunc != NULL) + lf = lutfunc[i]; + + DBG(("thscreens: creating plane %d/%d thscreen, offset %d %d\n",i,t->np,xoff,yoff)); + if ((t->sc[i] = new_thscreen(screens[bi].width, screens[bi].height, xoff, yoff, + screens[bi].asp, swap, screens[bi].list[0], + ie, oebpc, oelev, oevalues, oo, overlap, + cx, lf)) == NULL) { + for (--i; i >= 0; i--) + t->sc[i]->del(t->sc[i]); + free(t->sc); + free(t); + DBG(("thscreens: new_thscreen() failed\n")); + return NULL; + } + } } DBG(("thscreens: returning nonexact match\n")); + return t; } /* ----------------------------------------------------------- */ -/* The kernel screening routin */ +/* The kernel stocastic screening routine */ void thscreen16_8( struct _thscreen *t, /* Screening object pointer */ int width, int height, /* Width and height to screen in pixels */ int xoff, int yoff, /* Offset into screening pattern (must be +ve) */ - unsigned char *_in, /* Input pixel buffer */ - unsigned long ipinc, /* Increment between input pixels */ - unsigned long ipitch, /* Increment between input lines */ unsigned char *out, /* Output pixel buffer */ - unsigned long opinc, /* Increment between output pixels */ - unsigned long opitch /* Increment between output lines */ + unsigned long opinc, /* Increment between output pixels in components */ + unsigned long opitch, /* Increment between output lines in components */ + unsigned char *_in, /* Input pixel buffer */ + unsigned long ipinc, /* Increment between input pixels in components */ + unsigned long ipitch /* Increment between input lines in components */ ) { unsigned short *in = (unsigned short *)_in; /* Pointer to input pixel sized values */ int *lut = t->lut; /* Copy of 8 or 16 -> 16 bit lookup table */ + unsigned short *ein = in + height * ipitch; /* Vertical end pixel marker */ + unsigned short *ein1; /* Horizontal end pixel markers */ unsigned char **oth, **eth; /* Current lines start, origin and end in screening table. */ int thtsize; /* Overall size of threshold table */ unsigned char **eeth; /* Very end of threshold table */ - unsigned short *ein = in + height * ipitch; /* Vertical end pixel marker */ - unsigned short *ein1; /* Horizontal end pixel markers */ { unsigned char **sth; /* Start point of line intable */ diff --git a/render/thscreen.h b/render/thscreen.h index d3ac9b1..9a504bc 100644 --- a/render/thscreen.h +++ b/render/thscreen.h @@ -5,20 +5,22 @@ /* * render2d * - * Threshold screen pixel processing object. + * Threshold or Error diffusion screen pixel processing object. * (Simplified from DPS code) * * Author: Graeme W. Gill * Date: 11/7/2005 * Version: 1.00 * - * Copyright 2005, 2012 Graeme W. Gill + * Copyright 2005, 2012, 2014 Graeme W. Gill * All rights reserved. * This material is licenced under the GNU AFFERO GENERAL PUBLIC LICENSE Version 3 :- * see the License.txt file for licencing details. * */ +#define THMXCH2D 8 /* Maximum color channels */ + /* Light Separation in screening flag */ typedef enum { scls_false = 0, /* Don't do light ink separation during screening. */ @@ -45,15 +47,31 @@ struct _thscreens { int np; /* Number of planes */ struct _thscreen **sc; /* List of screens */ - /* Screen a single color plane */ + int oebpc; /* Output encoding bits per component, 1,2,4 or 8 */ + int oelev; /* Output encoding levels. Must be <= 2 ^ oebpc */ + int oevalues[256]; /* Output encoding values for each level */ + + int edif; /* nz if using error diffusion */ + int **luts; /* Lookup tables */ + int mxwidth; /* max width in pixels of raster to be screened */ + int lastyoff; /* Last y offset */ + float **ebuf; /* Error buffer for each plane */ + /* ebuf[][-1] is used for next pixel error */ + + void (*quant)(void *qcntx, double *out, double *in); /* optional quantization func. for edif */ + void *qcntx; /* Context for quant */ + + sobol *so; /* Random number generator for error diffusion */ + + /* Screen pixel values */ void (* screen)( /* Pointer to dither function */ struct _thscreens *t, /* Screening object pointer */ int width, int height, /* Width and height to screen in pixels */ int xoff, int yoff, /* Offset into screening pattern */ - unsigned char *in, /* Input pixel buffer */ - unsigned long ipitch, /* Increment between input lines */ unsigned char *out, /* Output pixel buffer */ - unsigned long opitch); /* Increment between output lines */ + unsigned long opitch, /* Increment between output lines in components */ + unsigned char *in, /* Input pixel buffer */ + unsigned long ipitch); /* Increment between input lines in components */ void (* del)( /* Destructor */ struct _thscreens *t); /* Screening objects pointer */ @@ -68,7 +86,7 @@ thscreens *new_thscreens( int exact, /* Return only exact matches */ int nplanes, /* Number of planes to screen */ double asp, /* Target aspect ratio (== dpiX/dpiY) */ - int size, /* Target size */ + int size, /* Target screen size */ sc_iencoding ie, /* Input encoding - must be scie_16 */ int oebpc, /* Output encoding bits per component - must be 8 */ int oelev, /* Output encoding levels. Must be <= 2 ^ oebpc */ @@ -76,8 +94,12 @@ thscreens *new_thscreens( /* Must be oelev entries. Default is 0 .. oelev-1 */ sc_oorder oo, /* Output bit ordering */ double overlap, /* Overlap between levels, 0 - 1.0 */ + int mxwidth, /* max width in pixels of raster to be screened */ void **cntx, /* List of contexts for lookup table callback */ - double (**lutfunc)(void *cntx, double in) /* List of callback function, NULL if none */ + double (**lutfunc)(void *cntx, double in), /* List of callback function, NULL if none */ + int edif, /* nz if using error diffusion */ + void (*quant)(void *qcntx, double *out, double *in), /* optional quantization func. for edif */ + void *qcntx ); /* ---------------------------- */ @@ -121,12 +143,12 @@ struct _thscreen { struct _thscreen *t, /* Screening object pointer */ int width, int height, /* Width and height to screen in pixels */ int xoff, int yoff, /* Offset into screening pattern */ - unsigned char *in, /* Input pixel buffer */ - unsigned long ipinc, /* Increment between input pixels */ - unsigned long ipitch, /* Increment between input lines */ unsigned char *out, /* Output pixel buffer */ - unsigned long opinc, /* Increment between output pixels */ - unsigned long opitch); /* Increment between output lines */ + unsigned long opinc, /* Increment between output pixels in components */ + unsigned long opitch, /* Increment between output lines in components */ + unsigned char *in, /* Input pixel buffer */ + unsigned long ipinc, /* Increment between input pixels in components */ + unsigned long ipitch); /* Increment between input lines in components */ void (* del)( /* Destructor */ struct _thscreen *t); /* Screening object pointer */ @@ -136,8 +158,8 @@ struct _thscreen { /* Create a new thscreen object */ /* Return NULL on error */ thscreen *new_thscreen( - int width, /* width in pixels */ - int height, /* Height in pixels */ + int width, /* width in pixels of screen */ + int height, /* Height in pixels of screen */ int xoff, int yoff, /* Pattern offsets into width & height (must be +ve) */ double asp, /* Aspect ratio (== dpiX/dpiY) */ int swap, /* Swap X & Y to invert aspect ratio */ diff --git a/render/timage.c b/render/timage.c index c4404f7..2b610d1 100644 --- a/render/timage.c +++ b/render/timage.c @@ -32,39 +32,43 @@ #include #include #include +#include #include "copyright.h" #include "aconfig.h" #include "numsup.h" #include "render.h" #define DEF_DPI 200 -#define DITHER 0 /* Test 8 bit didthering */ +#define DITHER 0 /* 1 for test 8 bit dithering, 2 for test error diffusion */ + /* 0x8001 for dithering FG only, 0x8002 for err. diff. FG only */ +#undef PNG_MEM /* Test PNG save to memory */ void usage(void) { fprintf(stderr,"Create test images, default hex RGB surface and wedge, Version %s\n",ARGYLL_VERSION_STR); fprintf(stderr,"Author: Graeme W. Gill, licensed under the AGPL Version 3\n"); - fprintf(stderr,"usage: timage [-options] outfile.tif\n"); -// fprintf(stderr," -v Verbose\n"); - fprintf(stderr," -t Generate rectangular gamut boundary test chart\n"); - fprintf(stderr," -p steps Generate a colorspace step chart with L* steps^2\n"); - fprintf(stderr," -r res Resolution in DPI (default %d)\n",DEF_DPI); - fprintf(stderr," -s Smooth blend\n"); - fprintf(stderr," -x 16 bit output\n"); - fprintf(stderr," -4 CMYK output\n"); - fprintf(stderr," -g prop Percentage towards grey (default 0%%)\n"); -// fprintf(stderr," -D Debug primitives plot */ - fprintf(stderr," outfile.tif Profile to check against\n"); + fprintf(stderr,"usage: timage [-options] outfile.[tif|png]\n"); +// fprintf(stderr," -v Verbose\n"); + fprintf(stderr," -t Generate rectangular gamut boundary test chart\n"); + fprintf(stderr," -p steps Generate a colorspace step chart with L* steps^2\n"); + fprintf(stderr," -r res Resolution in DPI (default %d)\n",DEF_DPI); + fprintf(stderr," -s Smooth blend\n"); + fprintf(stderr," -x 16 bit output\n"); + fprintf(stderr," -4 CMYK output\n"); + fprintf(stderr," -g prop Percentage towards grey (default 0%%)\n"); + fprintf(stderr," -P Save as PNG file (deffault TIFF)\n"); +// fprintf(stderr," -D Debug primitives plot */ + fprintf(stderr," outfile.[tif|png] Output TIFF or PNG file\n"); exit(1); } -int main(int argc, char *argv[]) -{ +int main(int argc, char *argv[]) { int fa,nfa; /* current argument we're looking at */ int verb = 0; int rchart = 0; /* Rectangular chart */ int schart = 0; /* Step chart with steps^2 */ int smooth = 0; /* Use smooth blending */ + rend_format fmt = tiff_file; /* Output filr format */ int debugchart = 0; /* Debug chart */ double res = DEF_DPI; depth2d depth = bpc8_2d; @@ -104,20 +108,20 @@ int main(int argc, char *argv[]) if (argv[fa][1] == '?') usage(); - else if (argv[fa][1] == 'v' || argv[fa][1] == 'V') + else if (argv[fa][1] == 'v') verb = 1; /* Rectangular chart */ - else if (argv[fa][1] == 't' || argv[fa][1] == 'T') { + else if (argv[fa][1] == 't') { rchart = 1; schart = 0; /* Smooth blending */ - } else if (argv[fa][1] == 's' || argv[fa][1] == 'S') + } else if (argv[fa][1] == 's') smooth = 1; /* 16 bit depth */ - else if (argv[fa][1] == 'x' || argv[fa][1] == 'X') + else if (argv[fa][1] == 'x') depth = bpc16_2d; /* cmyk */ @@ -125,7 +129,7 @@ int main(int argc, char *argv[]) cmyk = 1; /* step chart */ - else if (argv[fa][1] == 'p' || argv[fa][1] == 'P') { + else if (argv[fa][1] == 'p') { fa = nfa; if (na == NULL) usage(); schart = atoi(na); @@ -133,13 +137,18 @@ int main(int argc, char *argv[]) rchart = 0; } + /* PNG file */ + else if (argv[fa][1] == 'P') { + fmt = png_file; + } + /* debug chart */ else if (argv[fa][1] == 'D') { debugchart = 1; } /* resolution */ - else if (argv[fa][1] == 'r' || argv[fa][1] == 'R') { + else if (argv[fa][1] == 'r') { fa = nfa; if (na == NULL) usage(); res = atof(na); @@ -147,7 +156,7 @@ int main(int argc, char *argv[]) } /* grey blend */ - else if (argv[fa][1] == 'g' || argv[fa][1] == 'G') { + else if (argv[fa][1] == 'g') { fa = nfa; if (na == NULL) usage(); gbf = 1.0 - 0.01 * atof(na); @@ -175,7 +184,7 @@ int main(int argc, char *argv[]) if (cmyk) error("CMYK not supported for test chart"); - if ((r = new_render2d(w, h, NULL, res, res, rgb_2d, 0, depth, DITHER)) == NULL) { + if ((r = new_render2d(w, h, NULL, res, res, rgb_2d, 0, depth, DITHER, NULL, NULL)) == NULL) { error("new_render2d() failed"); } @@ -300,7 +309,7 @@ int main(int argc, char *argv[]) h = (1.0 + 2.0 * bb) * hh; w = (4.0 * bb + 0.25 + 2.0 * r3o2) * hh; - if ((r = new_render2d(w, h, NULL, res, res, cmyk ? cmyk_2d : rgb_2d, 0, depth, DITHER)) == NULL) { + if ((r = new_render2d(w, h, NULL, res, res, cmyk ? cmyk_2d : rgb_2d, 0, depth, DITHER, NULL, NULL)) == NULL) { error("new_render2d() failed"); } @@ -568,7 +577,7 @@ int main(int argc, char *argv[]) h = (1.0 + 2.0 * bb) * hh; w = (2.0 * bb + 0.20 * 7.0) * hh; - if ((r = new_render2d(w, h, NULL, res, res, rgb_2d, 0, depth, DITHER)) == NULL) { + if ((r = new_render2d(w, h, NULL, res, res, rgb_2d, 0, depth, DITHER, NULL, NULL)) == NULL) { error("new_render2d() failed"); } @@ -638,7 +647,7 @@ int main(int argc, char *argv[]) bs = (bb * hh)/(schart + 1.0); ss = hh * (1.0 - bb)/schart; - if ((r = new_render2d(w, h, NULL, res, res, lab_2d, 0, depth, DITHER)) == NULL) { + if ((r = new_render2d(w, h, NULL, res, res, lab_2d, 0, depth, DITHER, NULL, NULL)) == NULL) { error("new_render2d() failed"); } @@ -673,7 +682,36 @@ int main(int argc, char *argv[]) } } - r->write(r, outname,1); +#ifdef PNG_MEM + { + char *nmode = "w"; + FILE *fp; + unsigned char *buf; + size_t len, wlen; + +#if !defined(O_CREAT) && !defined(_O_CREAT) +# error "Need to #include fcntl.h!" +#endif +#if defined(O_BINARY) || defined(_O_BINARY) + nmode = "wb"; +#endif + + if (r->write(r, "MemoryBuf", 1, &buf, &len, png_mem)) + error("render->write failed"); + + if ((fp = fopen(outname, nmode)) == NULL) + error("render2d: open '%s' for writing",outname); + + if (len != (wlen = fwrite(buf, 1, len, fp))) + error("render2d: writing %u bytes to '%s' failed (wrote %u)",len,outname,wlen); + + if (fclose(fp)) + error("render2d: failed to close after writing",outname); + } +#else + if (r->write(r, outname, 1, NULL, NULL, fmt)) + error("render->write failed"); +#endif r->del(r); return 0; diff --git a/rspl/Jamfile b/rspl/Jamfile index dbca6d5..37c2c37 100644 --- a/rspl/Jamfile +++ b/rspl/Jamfile @@ -3,8 +3,8 @@ # Optimization and Debug flags -#PREF_CCFLAGS += $(CCOPTFLAG) ; # Turn optimisation on -PREF_CCFLAGS += $(CCDEBUGFLAG) ; # Debugging flags +PREF_CCFLAGS += $(CCOPTFLAG) ; # Turn optimisation on +#PREF_CCFLAGS += $(CCDEBUGFLAG) ; # Debugging flags #PREF_CCFLAGS += $(CCPROFFLAG) ; # Profile flags #PREF_LINKFLAGS += $(LINKPROFFLAG) ; # Profile flags #PREF_CCFLAGS += $(CCHEAPDEBUG) ; # Heap Debugging flags @@ -24,7 +24,7 @@ Headers = rspl.h ; Library librspl : rspl.c $(SCAT).c rev.c gam.c spline.c opt.c : : : ../h ../numlib ../plot ; HDRS = ../h ../numlib ../plot $(TIFFINC) ; -LINKLIBS = librspl ../numlib/libnum ../plot/libplot ../plot/libvrml ../icc/libicc $(TIFFLIB) $(JPEGLIB) ; +LINKLIBS = librspl ../plot/libplot ../numlib/libnum ../numlib/libui ../plot/libvrml ../icc/libicc $(TIFFLIB) $(JPEGLIB) ; # Test programs MainsFromSources revbench.c c1.c cw1.c cw3.c c1df.c t2d.c t2ddf.c t3d.c t3ddf.c tnd.c trnd.c ; @@ -36,7 +36,7 @@ if $(BUILD_TESTS) { HDRS = ../h ../numlib ../plot ../icc ../rspl ../xicc ../gamut ../cgats ../spectro $(TIFFINC) ; LINKLIBS = ../xicc/libxicc ../gamut/libgamut ../spectro/libinsttypes librspl ../cgats/libcgats ../icc/libicc ../plot/libplot ../plot/libvrml - ../numlib/libnum $(TIFFLIB) $(JPEGLIB) ; + ../numlib/libnum ../numlib/libui $(TIFFLIB) $(JPEGLIB) ; # Smoothness factor tuning test in Nd. Main smtnd : smtnd.c ; @@ -58,8 +58,13 @@ if $(BUILD_TESTS) { } -# Main tt : tt.c : : ../xicc : : : ../plot/libvrml ../icc/libicc ; +# Test code +if $(HOME) = "d:\\usr\\graeme" && $(PWD) = "/src/argyll/rspl" { + # Main tt : tt.c : : ../xicc : : : ../plot/libvrml ../icc/libicc ; + Main crossv : crossv.c : : : ../numlib ../plot : : ../plot/libplot ../numlib/libui ../numlib/libnum ; + +} if $(BUILD_JUNK) { HDRS = ../h ../numlib ; diff --git a/rspl/c1.c b/rspl/c1.c index 2717920..31849ee 100644 --- a/rspl/c1.c +++ b/rspl/c1.c @@ -20,7 +20,7 @@ #undef DIAG2 #undef GLOB_CHECK #define RES2 /* Do multiple test at various resolutions */ -#define AVGDEV 0.0 /* Average deviation of function data */ +#define AVGDEV 0.005 /* Average deviation of function data */ #include #include @@ -29,10 +29,10 @@ #include "copyright.h" #include "aconfig.h" #include "numlib.h" -#include "plot.h" #include "rspl.h" +#include "plot.h" +#include "ui.h" -double lin(); void usage(void); #define TRIALS 20 /* Number of random trials */ @@ -87,8 +87,7 @@ void usage(void) { fprintf(stderr,"Author: Graeme W. Gill\n"); fprintf(stderr,"usage: c1 [options]\n"); fprintf(stderr," -s smooth Use given smoothness (default 1.0)\n"); - fprintf(stderr," -2 Use two pass smoothing\n"); - fprintf(stderr," -x Use extra fitting\n"); + fprintf(stderr," -x Use auto smoothing\n"); exit(1); } @@ -102,8 +101,7 @@ int main(int argc, char *argv[]) { datai low,high; int gres[MXDI]; double smooth = 1.0; - int twopass = 0; - int extra = 0; + int autosm = 0; double avgdev[MXDO]; low[0] = 0.0; @@ -134,17 +132,14 @@ int main(int argc, char *argv[]) { usage(); /* smoothness */ - else if (argv[fa][1] == 's' || argv[fa][1] == 'S') { + else if (argv[fa][1] == 's') { fa = nfa; if (na == NULL) usage(); smooth = atof(na); } - else if (argv[fa][1] == '2') { - twopass = 1; - } - else if (argv[fa][1] == 'x' || argv[fa][1] == 'X') { - extra = 1; + else if (argv[fa][1] == 'x') { + autosm = 1; } else usage(); @@ -225,10 +220,9 @@ int main(int argc, char *argv[]) { #endif /* Fit to scattered data */ rss->fit_rspl(rss, - 0 | (twopass ? RSPL_2PASSSMTH : 0) - | (extra ? RSPL_EXTRAFIT2 : 0) , + 0 | (autosm ? RSPL_AUTOSMOOTH : 0) , test_points, /* Test points */ - pnts, /* Number of test points */ + pnts, /* Number of test points */ low, high, gres, /* Low, high, resolution of grid */ NULL, NULL, /* Default data scale */ smooth, /* Smoothing */ @@ -245,10 +239,10 @@ int main(int argc, char *argv[]) { tp.p[0] = x; rss->interp(rss, &tp); yy[1][i] = tp.v[0]; - if (yy[1][i] < -0.2) - yy[1][i] = -0.2; - else if (yy[1][i] > 1.2) - yy[1][i] = 1.2; + if (yy[1][i] < -20.0) + yy[1][i] = -20.0; + else if (yy[1][i] > 120.0) + yy[1][i] = 120.0; } do_plot(xx,yy[0],yy[1],NULL,XRES); @@ -283,8 +277,7 @@ int main(int argc, char *argv[]) { gresses[j] = gres[0]; rss->fit_rspl(rss, - 0 | (twopass ? RSPL_2PASSSMTH : 0) - | (extra ? RSPL_EXTRAFIT2 : 0) , + 0 | (autosm ? RSPL_AUTOSMOOTH : 0) , test_points, /* Test points */ pnts, /* Number of test points */ low, high, gres, /* Low, high, resolution of grid */ @@ -302,10 +295,10 @@ int main(int argc, char *argv[]) { tp.p[0] = x; rss->interp(rss, &tp); yy[1+j][i] = tp.v[0]; - if (yy[1+j][i] < -0.2) - yy[1+j][i] = -0.2; - else if (yy[1+j][i] > 1.2) - yy[1+j][i] = 1.2; + if (yy[1+j][i] < -20.0) + yy[1+j][i] = -20.0; + else if (yy[1+j][i] > 120.0) + yy[1+j][i] = 120.0; } } diff --git a/rspl/c1df.c b/rspl/c1df.c index 5d8dc32..4020d7a 100644 --- a/rspl/c1df.c +++ b/rspl/c1df.c @@ -30,8 +30,9 @@ #include "copyright.h" #include "aconfig.h" #include "numlib.h" -#include "plot.h" #include "rspl.h" +#include "plot.h" +#include "ui.h" double lin(); void usage(void); diff --git a/rspl/cw1.c b/rspl/cw1.c index 75a4f55..2a026c8 100644 --- a/rspl/cw1.c +++ b/rspl/cw1.c @@ -4,7 +4,7 @@ /************************************************/ /* Discrete regularized spline versions */ -/* Test variable grid spacing in 1D +/* Test variable grid spacing in 1D */ /* Author: Graeme Gill * Date: 4/10/95 @@ -28,8 +28,9 @@ #include "copyright.h" #include "aconfig.h" #include "numlib.h" -#include "plot.h" #include "rspl.h" +#include "plot.h" +#include "ui.h" double lin(); void usage(void); @@ -230,10 +231,10 @@ int main(int argc, char *argv[]) { } } - printf("Full scale: Black = lin, Red = even, Green = pow2\n"); + printf("Full scale: Black = ref, Red = even, Green = pow2\n"); do_plot6(xx1,yy1[0],yy1[1],yy1[2],NULL,NULL,NULL,XRES); - printf("Magnified: Black = lin, Red = even, Green = pow2\n"); + printf("Magnified: Black = ref, Red = even, Green = pow2\n"); do_plot6(xx2,yy2[0],yy2[1],yy2[2],NULL,NULL,NULL,XRES); } return 0; diff --git a/rspl/cw3.c b/rspl/cw3.c index 03c9b81..e26cb7a 100644 --- a/rspl/cw3.c +++ b/rspl/cw3.c @@ -4,7 +4,7 @@ /************************************************/ /* Discrete regularized spline versions */ -/* Test variable grid spacing in 3D +/* Test variable grid spacing in 3D */ /* Author: Graeme Gill * Date: 28/11/2013 @@ -28,8 +28,9 @@ #include "aconfig.h" #include "counters.h" #include "numlib.h" -#include "plot.h" #include "rspl.h" +#include "plot.h" +#include "ui.h" double lin(); void usage(void); diff --git a/rspl/gam.c b/rspl/gam.c index f8d02d0..e46780f 100644 --- a/rspl/gam.c +++ b/rspl/gam.c @@ -4,7 +4,7 @@ * Multi-dimensional regularized spline data structure * * Precice gamut surface, gamut pruning, ink limiting and K min/max - * support routine.s + * support routines. * * Author: Graeme W. Gill * Date: 2008/11/21 @@ -45,7 +45,7 @@ #include "sort.h" /* Heap sort */ #include "counters.h" /* Counter macros */ -#include "vrml.h" /* If there is VRML stuff here */ +#include "vrml.h" /* If there is VRML/X3D stuff here */ /* Print a vectors value */ #define DBGVI(text, dim, out, vec, end) \ @@ -879,8 +879,10 @@ for (ss = 0; ss < 2; ss++) { /* Negative side then positive */ rtri *tp; double col[3], pos[3]; - if ((wrl = new_vrml("gam_diag.wrl", 1)) == NULL) - error("new_vrml failed\n"); + if ((wrl = new_vrml("gam_diag", 1, vrml_lab)) == NULL) + error("new_vrml failed for 'gam_diag%s\n",vrml_ext()); + + wrl->start_line_set(wrl, 0); /* Display the grid */ EC_INIT(gc); @@ -906,25 +908,25 @@ for (ss = 0; ss < 2; ss++) { /* Negative side then positive */ pos[2] = (double)gp[2]; if (s->gam.outf != NULL) s->gam.outf(s->gam.cntxf, pos, pos); /* Apply output lookup */ - wrl->add_vertex(wrl, pos); + wrl->add_vertex(wrl, 0, pos); pos[0] = (double)sp[0]; pos[1] = (double)sp[1]; pos[2] = (double)sp[2]; if (s->gam.outf != NULL) s->gam.outf(s->gam.cntxf, pos, pos); /* Apply output lookup */ - wrl->add_vertex(wrl, pos); + wrl->add_vertex(wrl, 0, pos); } DC_INC(cc); } EC_INC(gc); } - wrl->make_lines(wrl, 2); - wrl->clear(wrl); + wrl->make_lines(wrl, 0, 2); + wrl->start_line_set(wrl, 0); /* Display the current triangles transparently */ if (s->gam.ttop != NULL) { for (vp = s->gam.vtop; vp != NULL; vp = vp->list) { - wrl->add_vertex(wrl, vp->v); + wrl->add_vertex(wrl, 0, vp->v); } /* Set the triangles */ @@ -933,19 +935,19 @@ for (ss = 0; ss < 2; ss++) { /* Negative side then positive */ ix[0] = tp->v[0]->n; ix[1] = tp->v[1]->n; ix[2] = tp->v[2]->n; - wrl->add_triangle(wrl, ix); + wrl->add_triangle(wrl, 0, ix); } -// wrl->make_triangles(wrl, 0.3, NULL); - wrl->make_triangles(wrl, 0.0, NULL); - wrl->clear(wrl); +// wrl->make_triangles(wrl, 0, 0.3, NULL); + wrl->make_triangles(wrl, 0, 0.0, NULL); + wrl->start_line_set(wrl, 0); } /* Show the active edge as a red cone */ col[0] = 1.0; col[1] = 0.0; col[2] = 0.0; /* Red */ wrl->add_cone(wrl, ep->v[0]->v, ep->v[1]->v, col, 1.0); -printf("~1 edge v1 = %d = %f %f %f\n", ep->v[0]->gix, ep->v[0]->v[0], ep->v[0]->v[1], ep->v[0]->v[2]); -printf("~1 edge v2 = %d = %f %f %f\n", ep->v[1]->gix, ep->v[1]->v[0], ep->v[1]->v[1], ep->v[1]->v[2]); +//printf("~1 edge v1 = %d = %f %f %f\n", ep->v[0]->gix, ep->v[0]->v[0], ep->v[0]->v[1], ep->v[0]->v[2]); +//printf("~1 edge v2 = %d = %f %f %f\n", ep->v[1]->gix, ep->v[1]->v[0], ep->v[1]->v[1], ep->v[1]->v[2]); /* Show the candidate verticies */ for (ss = 0; ss < 2; ss++) { @@ -959,6 +961,7 @@ printf("~1 edge v2 = %d = %f %f %f\n", ep->v[1]->gix, ep->v[1]->v[0], ep->v[1]-> } } wrl->del(wrl); + printf("Waiting for return after writing gam_diag%s\n",vrml_ext()); getchar(); } #endif @@ -1184,7 +1187,7 @@ void rspl_gam_plot(rspl *s, char *name) { vrml *wrl; if ((wrl = new_vrml(name, 1, 0)) == NULL) - error("new_vrml failed\n"); + error("new_vrml failed for '%s%s'\n",name,vrml_ext()); /* Set the verticies */ for (vp = s->gam.vtop; vp != NULL; vp = vp->list) { diff --git a/rspl/revbench.c b/rspl/revbench.c index d0c7566..81e668e 100644 --- a/rspl/revbench.c +++ b/rspl/revbench.c @@ -22,6 +22,7 @@ #include "aconfig.h" #include "rspl.h" #include "numlib.h" +//#include "ui.h" #undef DOLIMIT /* Define to have ink limit */ #define LIMITVAL 2.5 /* Total ink limit sum */ diff --git a/rspl/rspl.c b/rspl/rspl.c index 23ef6b4..431a7e3 100644 --- a/rspl/rspl.c +++ b/rspl/rspl.c @@ -72,6 +72,7 @@ static int re_set_rspl(struct _rspl *s, int flags, void *cbntx, void (*func)(void *cbntx, double *out, double *in)); static void scan_rspl(struct _rspl *s, int flags, void *cbntx, void (*func)(void *cbntx, double *out, double *in)); +static int tune_value(struct _rspl *s, co *p); static void filter_rspl(struct _rspl *s, int flags, void *cbctx, void (*func)(void *cbntx, float **out, double *in, int cvi)); @@ -172,6 +173,7 @@ printf("!!!! rspl.c using interp_rspl_nl !!!!"); s->set_rspl = set_rspl; s->scan_rspl = scan_rspl; s->re_set_rspl = re_set_rspl; + s->tune_value = tune_value; s->opt_rspl = opt_rspl_imp; s->filter_rspl = filter_rspl; s->get_in_range = get_in_range; @@ -1241,6 +1243,153 @@ void (*func)(void *cbntx, double *out, double *in) /* Function to get from */ } +/* ============================================ */ +/* Tune a single value for simplex interpolation. */ +/* Return 0 on success, 1 if input clipping occured, 2 if output clipping occured */ +static int tune_value ( +struct _rspl *s, /* Pointer to Lut object */ +co *p /* Target value */ +) { + int e, di = s->di; + int f, fdi = s->fdi; + double we[MXDI]; /* Coordinate offset within the grid cell */ + int si[MXDI]; /* we[] Sort index, [0] = smallest */ + float *gp; /* Pointer to grid cube base */ + int rv = 0; /* Register clip */ + + /* We are using a simplex (ie. tetrahedral for 3D input) interpolation. */ + + DEBLU(("In %s\n", icmPdv(di, p->p))); + + /* Figure out which grid cell the point falls into */ + { + gp = s->g.a; /* Base of grid array */ + for (e = 0; e < di; e++) { + int gres_1 = s->g.res[e]-1; + double pe, t; + int mi; + pe = p->p[e]; + if (pe < s->g.l[e]) { /* Clip to grid */ + pe = s->g.l[e]; + rv = 1; + } + if (pe > s->g.h[e]) { + pe = s->g.h[e]; + rv = 1; + } + t = (pe - s->g.l[e])/s->g.w[e]; + mi = (int)floor(t); /* Grid coordinate */ + if (mi < 0) /* Limit to valid cube base index range */ + mi = 0; + else if (mi >= gres_1) + mi = gres_1-1; + gp += mi * s->g.fci[e]; /* Add Index offset for grid cube base in dimen */ + we[e] = t - (double)mi; /* 1.0 - weight */ +//if (rspldb && di == 3) printf("~1 e = %d, ix = %d, we = %f\n", e, mi, we[e]); + } + DEBLU(("ix %d, we %s\n", (gp - s->g.a)/s->g.pss, icmPdv(di, p->p))); + } + + /* Do selection sort on coordinates */ + { + for (e = 0; e < di; e++) + si[e] = e; /* Initial unsorted indexes */ + for (e = 0; e < (di-1); e++) { + double cosn; + cosn = we[si[e]]; /* Current smallest value */ + for (f = e+1; f < di; f++) { /* Check against rest */ + int tt; + tt = si[f]; + if (cosn > we[tt]) { + si[f] = si[e]; /* Exchange */ + si[e] = tt; + cosn = we[tt]; + } + } + } + } + DEBLU(("si[] = %s\n", icmPiv(di, si))); + + /* Now compute the weightings, simplex vertices and output values */ + { + double w, ww = 0.0; /* Current vertex weight, sum of weights squared */ + double cout[MXDO]; /* Current output value */ + float *ogp = gp; /* Pointer to grid cube base */ + + w = 1.0 - we[si[di-1]]; /* Vertex at base of cell */ + ww += w * w; /* Sum of weights squared */ + for (f = 0; f < fdi; f++) + cout[f] = w * gp[f]; + + DEBLU(("ix %d: w %f * val %s\n", (gp - s->g.a)/s->g.pss, w, icmPfv(fdi,gp))); + + for (e = di-1; e > 0; e--) { /* Middle verticies */ + w = we[si[e]] - we[si[e-1]]; + ww += w * w; /* Sum of weights squared */ + gp += s->g.fci[si[e]]; /* Move to top of cell in next largest dimension */ + for (f = 0; f < fdi; f++) + cout[f] += w * gp[f]; + DEBLU(("ix %d: w %f * val %s\n", (gp - s->g.a)/s->g.pss, w, icmPfv(fdi,gp))); + } + + w = we[si[0]]; + ww += w * w; /* Sum of weights squared */ + gp += s->g.fci[si[0]]; /* Far corner from base of cell */ + for (f = 0; f < fdi; f++) + cout[f] += w * gp[f]; + DEBLU(("ix %d: w %f * val %s\n", (gp - s->g.a)/s->g.pss, w, icmPfv(fdi,gp))); + DEBLU(("cout %s\n", icmPdv(fdi, cout))); + + /* We distribute the correction needed in proportion to the */ + /* interpolation weighting, so the biggest correction is to the */ + /* closest vertex. */ + for (f = 0; f < fdi; f++) + cout[f] = (p->v[f] - cout[f])/ww; /* Amount to distribute */ + + gp = ogp; + w = 1.0 - we[si[di-1]]; /* Vertex at base of cell */ + for (f = 0; f < fdi; f++) { + gp[f] += w * cout[f]; /* Apply correction */ + if (gp[f] < s->g.fmin[f]) { + gp[f] = s->g.fmin[f]; + rv |= 2; + } else if (gp[f] > s->g.fmax[f]) { + gp[f] = s->g.fmax[f]; + rv |= 2; + } + } + + for (e = di-1; e > 0; e--) { /* Middle verticies */ + w = we[si[e]] - we[si[e-1]]; + gp += s->g.fci[si[e]]; /* Move to top of cell in next largest dimension */ + for (f = 0; f < fdi; f++) { + gp[f] += w * cout[f]; /* Apply correction */ + if (gp[f] < s->g.fmin[f]) { + gp[f] = s->g.fmin[f]; + rv |= 2; + } else if (gp[f] > s->g.fmax[f]) { + gp[f] = s->g.fmax[f]; + rv |= 2; + } + } + } + + w = we[si[0]]; + gp += s->g.fci[si[0]]; /* Far corner from base of cell */ + for (f = 0; f < fdi; f++) { + gp[f] += w * cout[f]; /* Apply correction */ + if (gp[f] < s->g.fmin[f]) { + gp[f] = s->g.fmin[f]; + rv |= 2; + } else if (gp[f] > s->g.fmax[f]) { + gp[f] = s->g.fmax[f]; + rv |= 2; + } + } + } + return rv; +} + /* ============================================ */ /* Allow the grid values to be filtered. */ /* For each grid value, provide the input value and */ diff --git a/rspl/rspl.h b/rspl/rspl.h index 5bccba7..ae0a165 100644 --- a/rspl/rspl.h +++ b/rspl/rspl.h @@ -92,7 +92,7 @@ struct _rpnts { double p[MXRI]; /* Data position [di] */ double v[MXRO]; /* Data value [fdi] */ double k[MXRO]; /* Weight factor (nominally 1.0, less for lower confidence data point) */ - double cv[MXRO]; /* Extra fit corrected v[fdi] */ +// double fe; /* Fit error in output pass (ausm) */ }; typedef struct _rpnts rpnts; /* Hermite interpolation magic data */ @@ -106,6 +106,14 @@ typedef struct { #include "rev.h" /* Reverse interpolation defintions */ #include "gam.h" /* Gamut defintions */ +/* Sub-fit itteration information */ +typedef struct { + int niters; /* Number of multigrid itterations needed */ + int **ires; /* Resolution for each itteration and dimension */ + void **mgtmps[MXRO]; /* Store pointers to re-usable mgtmp when incremental */ + /* (These don't seem to be used anymore. was incremental removed ?) */ +} it_info; + /* Structure for final resolution multi-dimensional regularized spline data */ struct _rspl { @@ -128,19 +136,19 @@ struct _rspl { /* Function to set from */ /* Scattered Data point related information */ - int zf; /* Extra fitting flag - Compensate for data fit errors each round */ - int tpsm; /* Two pass smoothing flag (if set to 1). */ - int tpsm2; /* Two pass smoothing 2nd pass flag */ + int ausm; /* Automatic smoothing enabled flag. */ struct { int no; /* Number of data points in array */ rpnts *a; /* Array of data points */ - datao vl,vw; /* Data value low/width - used to normalize smoothness values */ + datao vl, vw; /* Data value low/width - not used */ datao va; /* Data value averages */ +// double fea; /* Fit error average */ } d; - int niters; /* Number of multigrid itterations needed */ - int **ires; /* Resolution for each itteration and dimension */ - void **mgtmps[MXRO]; /* Store pointers to re-usable mgtmp when incremental */ + + it_info ii; /* Main itteration information for final rspl */ + it_info as_ii; /* Automatic smoothing pre-fit itteration info */ + it_info asm_ii; /* Automatic smoothing map itteration info */ /* Grid points data */ struct { @@ -158,7 +166,6 @@ struct _rspl { /* gres[] entries per dimension. Allows for the possibility of */ /* a non-uniform grid spacing, by adjusting the curvature evaluation */ /* appropriately. */ - double **ccv; /* Curvature compensation array for current outpu (May be NULL) */ int fminmax_valid; /* Min/max/scale cached values valid flag. */ int limitv_cached; /* Flag: Ink limit values have been set in the grid array */ @@ -235,12 +242,8 @@ struct _rspl { void (*del)(struct _rspl *ss); /* Combination lags used by various functions */ - /* NOTE that RSPL_2PASSSMTH and RSPL_EXTRAFIT2 are available, but the smoothing */ - /* factors are not setup for them, and they are not sufficiently different from the */ - /* default smoothing to be useful. */ #define RSPL_NOFLAGS 0x0000 -#define RSPL_2PASSSMTH 0x0001 /* Use gaussian filter in 2nd pass to smooth */ -#define RSPL_EXTRAFIT2 0x0002 /* Compensate for data errors each round */ +#define RSPL_AUTOSMOOTH 0x0001 /* Automatically determin local optimal avgdev smoothing */ #define RSPL_SYMDOMAIN 0x0004 /* Maintain symetric smoothness with nonsym. resolution */ #define RSPL_SET_APXLS 0x0020 /* For set_rspl, adjust samples for aproximate least squares */ #define RSPL_FASTREVSETUP 0x0010 /* Do a fast reverse setup at the cost of subsequent speed */ @@ -409,6 +412,13 @@ struct _rspl { void (*func)(void *cbntx, double *out, double *in) /* Function that gets given values */ ); + /* Tune a single value. */ + /* Return 0 on success, 1 if input clipping occured, 2 if output clipping occured */ + int (*tune_value) ( + struct _rspl *s, /* Pointer to Lut object */ + co *p /* Target value */ + ); + /* Set values by multi-grid optimisation using the provided function. */ int (*opt_rspl)( struct _rspl *s,/* this */ diff --git a/rspl/rspl1.h b/rspl/rspl1.h index d5ea0b9..747abd5 100644 --- a/rspl/rspl1.h +++ b/rspl/rspl1.h @@ -44,7 +44,7 @@ typedef struct { #define RSPL_NOFLAGS 0 struct _rspl { - + /* Private: */ int nig; /* number in interpolation grid */ double gl,gh,gw;/* Interpolation grid scale low, high, grid cell width */ diff --git a/rspl/scat.c b/rspl/scat.c index ec7e99c..f1535fa 100644 --- a/rspl/scat.c +++ b/rspl/scat.c @@ -1,4 +1,6 @@ +// current scat.c with V1.6.3 position curve rspl setup code + /* * Argyll Color Correction System * Multi-dimensional regularized splines data fitter @@ -126,12 +128,18 @@ #define DEFAVGDEV 0.5 /* Default average deviation % */ /* algorithm parameters [Release defaults] */ -#undef POINTWEIGHT /* [Undef] Increas smoothness weighting proportional to number of points */ #define INCURVEADJ /* [Defined] Adjust smoothness criteria for input curve grid spacing */ -#define ENABLE_2PASSSMTH /* [Define] Enable 2 pass smooth using Gaussian filter */ -#define ENABLE_EXTRAFIT /* [Undef] Enable the extra fit option. Good to combat high smoothness. */ +#undef SMOOTH2 /* [Undef] INCOMPLETE Use 3nd order smoothness rather than curvature. */ + /* 2nd order is optimal about 2.5 x lower than 3rd order, */ + /* so an even split between 3rd:2nd would be 1.0 0.4, */ + /* a 9:1 split would be 0.9 0.04 */ + /* This also disables the incorrect scaling of smoothness with */ + /* output range */ +#undef AUTOSM /* [Undef] INCOMPLETE Support auto smoothing using LOOCV */ + +# define CW2 0.9 +# define CW ((1.0 - CW2) * 0.4) -#define TWOPASSORDER 2.0 /* Filter order. 2 = Gaussian */ /* Tuning parameters */ #ifdef NEVER @@ -144,13 +152,12 @@ #define TOL_IMP 1.0 /* Minimum error improvement to continue - reduces accuracy (1.0 == off) */ #undef GRADUATED_TOL /* Speedup attemp - use reduced tollerance for prior grids. */ #define GRATIO 1.5 /* Multi-grid resolution ratio */ -#undef OVERRLX /* Use over relaxation factor when progress slows (worse accuracy ?) */ +#undef OVERRLX /* Use over relaxation factor when progress slows (worse accuracy ?) */ #define JITTERS 0 /* Number of 1D conjugate solve itters */ #define CONJ_TOL 1.0 /* Extra tolereance on 1D conjugate solution times TOL. */ #define MAXNI 16 /* Maximum itteration without checking progress */ //#define SMOOTH 0.000100 /* Set nominal smoothing (1.0) */ #define WEAKW 0.1 /* Weak default function nominal effect (1.0) */ -#define ZFCOUNT 1 /* Extra fit repeats */ #else @@ -166,7 +173,6 @@ #define MAXNI 16 /* [16] Maximum itteration without checking progress */ //#define SMOOTH 0.000100 /* Set nominal smoothing (1.0) */ #define WEAKW 0.1 /* [0.1] Weak default function nominal effect (1.0) */ -#define ZFCOUNT 1 /* [1] Extra fit repeats */ #endif @@ -200,6 +206,9 @@ struct _mgtmp { /* Scattered data fit stuff */ struct { double cw[MXDI]; /* Curvature weight factor */ +#ifdef SMOOTH2 + double cw2[MXDI]; /* Smoothness weight factor */ +#endif } sf; /* Grid points data */ @@ -225,7 +234,6 @@ struct _mgtmp { /* Equation Solution related (Grid point solutions) */ struct { - double **ccv; /* [gno][di] Curvature Compensation Values */ double **A; /* A matrix of interpoint weights A[g.no][q.acols] */ int acols; /* A matrix columns needed */ /* Packed indexes run from 0..acols-1 */ @@ -233,16 +241,60 @@ struct _mgtmp { /* and +/-1 offset in all dimensions, but only the +ve offset */ /* half of the sparse matrix is stored, due to equations */ /* being symetrical. */ - int xcol[HACOMPS+8];/* A array column translation from packed to sparse index */ +#define XCOLPMAX (HACOMPS+8) + int xcol[XCOLPMAX]; /* A array column translation from packed to sparse index */ int *ixcol; /* A array column translation from sparse to packed index */ double *b; /* b vector for RHS of simultabeous equation b[g.no] */ double normb; /* normal of b vector */ double *x; /* x solution to A . x = b */ } q; +#ifdef AUTOSM + struct _loocv *as; /* Auto Smooth Setup information */ +#endif + }; typedef struct _mgtmp mgtmp; +/* ================================================= */ + +#ifdef AUTOSM + +/* Structure to hold LOOCV equations for multi-grid calculations */ +/* One is created for each resolution. Only used in this file. */ +struct _loocv { + mgtmp *m; /* Associated mgtmp */ + + int ndcells; /* Number of cells with at least one data point */ + int *dlist; /* Index of base vertex of cell with at least one data point. */ + /* ndcells will be filled */ + + int *vtx_dlist; /* For base vertex index store the index of the first data point */ + /* within that cell. -1 for no data */ + int *dat_dlist; /* Index by data point, store the index of the next data point */ + /* in the list in the cell. -1 for no more data */ + + double *sm; /* smoothness map grid data values in log space, 0.0 for none */ + + double **As; /* A matrix of smoothness vertex weights */ + double *bs; /* b vector for RHS of smoothness equation */ + +#ifdef SMOOTH2 + double **As2; /* A matrix of smoothness 2 vertex weights */ + double *bs2; /* b vector for RHS of smoothness 2 equation */ +#endif + + double **Ad; /* A matrix of data vertex weights */ + double *bd; /* b vector for RHS of data equation */ + + double **AA; /* A matrix of vertex weights */ + double *bb; /* b vector for RHS of equation */ + double *xx; /* x vector for solution of equation for a given smoothness */ + +}; typedef struct _loocv loocv; + +#endif /* AUTOSM */ + /* ================================================= */ /* Temporary arrays used by cj_line(). We try and avoid */ /* allocating and de-allocating these, and merely expand */ @@ -256,15 +308,91 @@ static void init_cj_arrays(cj_arrays *ta); static void free_cj_arrays(cj_arrays *ta); static int add_rspl_imp(rspl *s, int flags, void *d, int dtp, int dno); -static mgtmp *new_mgtmp(rspl *s, int gres[MXDI], int f); +static mgtmp *new_mgtmp(rspl *s, int gres[MXDI], double smooth, double avgdev, int f, int issm); static void free_mgtmp(mgtmp *m); -static void setup_solve(mgtmp *m); +static void setup_solve(mgtmp *m, mgtmp *sm); static void solve_gres(mgtmp *m, cj_arrays *ta, double tol, int final); static void init_soln(mgtmp *m1, mgtmp *m2); -static void comp_ccv(mgtmp *m); -static void filter_ccv(rspl *s, double stdev); -static void init_ccv(mgtmp *m); -static void comp_extrafit_corr(mgtmp *m); +static double mgtmp_interp(mgtmp *m, double p[MXDI]); +#ifdef AUTOSM +static void setup_sutosmsolve(mgtmp *); +static void comp_fit_errors(mgtmp *m); +static void plot_mgtmp1(mgtmp *m); +#endif /* AUTOSM */ + +static void set_it_info( +rspl *s, +int *tres, /* Single dimension grid resolution for each axis */ +it_info *ii /* it_info to set */ +) { + int bres; /* Biggest resolution */ + int sres; /* Starting resolution */ + double res; + double gratio; + int i, e, f; + + bres = 0; + for (e = 0; e < s->di; e++) { + if (tres[e] > bres) + bres = tres[e]; + } + + /* Figure out how many multigrid steps to use */ +#ifdef SMOOTH2 + sres = 5; /* Start at minimum grid res of 5 */ +#else + sres = 4; /* Start at minimum grid res of 4 */ +#endif + + /* Calculate the resolution scaling ratio and number of itters. */ + gratio = GRATIO; + if (((double)bres/(double)sres) <= gratio) { + ii->niters = 2; + gratio = (double)bres/(double)sres; + } else { /* More than one needed */ + ii->niters = (int)((log((double)bres) - log((double)sres))/log(gratio) + 0.5); + gratio = exp((log((double)bres) - log((double)sres))/(double)ii->niters); + ii->niters++; + } + + /* Allocate space for resolutions */ + if ((ii->ires = imatrix(0, ii->niters, 0, s->di)) == NULL) + error("rspl: malloc failed - ires[][]"); + + /* Fill in the resolution values for each itteration */ + for (res = (double)sres, i = 0; i < ii->niters; i++) { + int ires; + + ires = (int)(res + 0.5); + for (e = 0; e < s->di; e++) { + if ((ires + 1) >= tres[e]) /* If close enough biger than target res. */ + ii->ires[i][e] = tres[e]; + else + ii->ires[i][e] = ires; + } + res *= gratio; + } + + /* Assert */ + for (e = 0; e < s->di; e++) { + if (ii->ires[ii->niters-1][e] != tres[e]) + error("rspl: internal error, final res %d != intended res %d\n", + ii->ires[ii->niters-1][e], tres[e]); + } +} + +static void freeit_info( +rspl *s, +it_info *ii +) { + int i, f; + + if (ii->ires != NULL) { + free_imatrix(ii->ires, 0, ii->niters, 0, s->di); + ii->ires = NULL; + } +} + /* Initialise the regular spline from scattered data */ /* Return non-zero if non-monotonic */ @@ -325,12 +453,7 @@ printf("~1 rspl: flags = 0x%x\n",flags); if (flags & RSPL_NOVERBOSE) /* Turn off progress messages to stdout */ s->verbose = 0; -#ifdef ENABLE_2PASSSMTH - s->tpsm = (flags & RSPL_2PASSSMTH) ? 1 : 0; /* Enable 2 pass smoothing */ -#endif -#ifdef ENABLE_EXTRAFIT - s->zf = (flags & RSPL_EXTRAFIT2) ? 2 : 0; /* Enable extra fitting effort */ -#endif + s->ausm = (flags & RSPL_AUTOSMOOTH) ? 1 : 0; /* Enable auto smoothing */ s->symdom = (flags & RSPL_SYMDOMAIN) ? 1 : 0; /* Turn on symetric smoothness with gres */ /* Save smoothing factor and Average Deviation */ @@ -485,66 +608,14 @@ printf("~1 rspl: flags = 0x%x\n",flags); /* Allocate the grid data */ alloc_grid(s); - /* Zero out the re-usable mgtmps */ - for (f = 0; f < s->fdi; f++) { - s->mgtmps[f] = NULL; - } - - { - int sres; /* Starting resolution */ - double res; - double gratio; - - /* Figure out how many multigrid steps to use */ - sres = 4; /* Else start at minimum grid res of 4 */ - - /* Calculate the resolution scaling ratio and number of itters. */ - gratio = GRATIO; - if (((double)s->g.bres/(double)sres) <= gratio) { - s->niters = 2; - gratio = (double)s->g.bres/(double)sres; - } else { /* More than one needed */ - s->niters = (int)((log((double)s->g.bres) - log((double)sres))/log(gratio) + 0.5); - gratio = exp((log((double)s->g.bres) - log((double)sres))/(double)s->niters); - s->niters++; - } - - /* Allocate space for resolutions and mgtmps pointers */ - if ((s->ires = imatrix(0, s->niters, 0, s->di)) == NULL) - error("rspl: malloc failed - ires[][]"); - - for (f = 0; f < s->fdi; f++) { - if ((s->mgtmps[f] = (void *) calloc(s->niters, sizeof(void *))) == NULL) - error("rspl: malloc failed - mgtmps[]"); - } - - /* Fill in the resolution values for each itteration */ - for (res = (double)sres, i = 0; i < s->niters; i++) { - int ires; - - ires = (int)(res + 0.5); - for (e = 0; e < s->di; e++) { - if ((ires + 1) >= s->g.res[e]) /* If close enough biger than target res. */ - s->ires[i][e] = s->g.res[e]; - else - s->ires[i][e] = ires; - } - res *= gratio; - } - - /* Assert */ - for (e = 0; e < s->di; e++) { - if (s->ires[s->niters-1][e] != s->g.res[e]) - error("rspl: internal error, final res %d != intended res %d\n", - s->ires[s->niters-1][e], s->g.res[e]); - } - - } + /* Setup the number of itterations and resolution for each itteration */ + set_it_info(s, s->g.res, &s->ii); /* Do the data point fitting */ return add_rspl_imp(s, 0, d, dtp, dno); } +/* Weighting adjustment values */ double adjw[21] = { 7.0896971822529019e-278, 2.7480236142217909e+233, 1.4857837676559724e+166, 1.3997102851752585e-152, 1.3987140593588909e-076, 2.8215833239257504e+243, @@ -555,6 +626,89 @@ double adjw[21] = { 3.2368131456774088e+262, 6.5639459298208554e+045, 2.0087765219520138e-139 }; +/* Do the fitting for one output plane */ +static mgtmp * +fit_rspl_plane_imp( +rspl *s, /* this */ +int f, /* Output plane */ +it_info *ii, /* resolution info */ +double smooth, /* Smoothing factor */ +double avgdev, /* Average deviation to use to set smoothness */ +//mgtmp *sm, /* Optional smoothness map */ +cj_arrays *ta /* Temporary array */ +) { + int i, nn; /* Multigreid resolution itteration index */ + mgtmp *pm = NULL, *m = NULL; + mgtmp *psm = NULL, *sm = NULL; /* Smoothing map */ + + /* For each resolution (itteration) */ + for (nn = 0; nn < ii->niters; nn++, pm = m) { + + m = new_mgtmp(s, ii->ires[nn], smooth, avgdev, f, 0); + + // ~~~ want setup solve after creating sm, + // but can't setup initial values until after setup_solve + // because m->q.x needs to be allocated + setup_solve(m, sm); + + if (nn == 0) { /* Make sure we have an initial x[] */ +#ifdef AUTOSM + Create sm and set initial values +~~~~ + sm = new_mgtmp(s, ii->ires[nn], smooth, avgdev, f, 1); + for (i = 0; i < sm->g.no; i++) + sm->as.sm[i] = m->sf.cw[e]; /* Value from opt_smooth() */ + /* ?? how to handle cw2[] etc. ? */ + +#endif /* AUTOSM */ + + for (i = 0; i < m->g.no; i++) + m->q.x[i] = s->d.va[f]; /* Start with average data value */ + } else { + init_soln(m, pm); /* Scale from previous resolution */ + free_mgtmp(pm); /* Free previous grid res solution */ + pm = NULL; + +#ifdef AUTOSM + init_soln(sm, psm); /* Scale from previous resolution */ + free_mgtmp(psm); /* Free previous grid res solution */ + psm = NULL; +#endif + } + + solve_gres(m, ta, +#if defined(GRADUATED_TOL) + TOL * s->g.res[s->g.brix]/s->ires[nn][s->g.brix], +#else + TOL, +#endif + ii->ires[nn][s->g.brix] >= s->g.res[s->g.brix]); /* Use itterative */ + +#ifdef DEBUG + { + int k, gno = m->g.no; + double *x = m->q.x; /* x vector for result */ + printf("Plane %d res %d solution values:\n",f,ii->ires[nn][0]); + for (k = 0; k < gno; k++) + printf("x[%d] = %f\n",k,x[k]); + printf("\n"); + } +#endif /* DEBUG */ + +#ifdef AUTOSM + if (nn < (ii->niters-1)) { + + setup_sutosmsolve(sm); + + } +#endif + psm = sm; + } /* Next resolution */ + + /* return the final resolution mgtmp */ + return m; +} + /* Do the work of initialising from initial data points. */ /* Return non-zero if non-monotonic */ static int @@ -578,6 +732,10 @@ add_rspl_imp( return 0; } +#ifdef DEBUG + printf("add_rspl_imp: flags 0x%x, dno %d, dtp %d\n",flags,dno,dtp); +#endif + /* Allocate space for points */ /* Allocate the scattered data space */ if ((s->d.a = (rpnts *) malloc(sizeof(rpnts) * dno)) == NULL) @@ -592,9 +750,9 @@ add_rspl_imp( for (e = 0; e < s->di; e++) s->d.a[n].p[e] = dp[i].p[e]; for (f = 0; f < s->fdi; f++) { - s->d.a[n].cv[f] = s->d.a[n].v[f] = dp[i].v[f]; s->d.a[n].k[f] = 1.0; /* Assume all data points have same weight */ +// s->d.a[n].fe = 0.0; } } } else if (dtp == 1) { /* Per data point weight */ @@ -605,9 +763,9 @@ add_rspl_imp( for (e = 0; e < s->di; e++) s->d.a[n].p[e] = dp[i].p[e]; for (f = 0; f < s->fdi; f++) { - s->d.a[n].cv[f] = s->d.a[n].v[f] = dp[i].v[f]; s->d.a[n].k[f] = dp[n].w; /* Weight specified */ +// s->d.a[n].fe = 0.0; } } } else { /* Per data point output weight */ @@ -618,9 +776,9 @@ add_rspl_imp( for (e = 0; e < s->di; e++) s->d.a[n].p[e] = dp[i].p[e]; for (f = 0; f < s->fdi; f++) { - s->d.a[n].cv[f] = s->d.a[n].v[f] = dp[i].v[f]; s->d.a[n].k[f] = dp[n].w[f]; /* Weight specified */ +// s->d.a[n].fe = 0.0; } } } @@ -628,89 +786,79 @@ add_rspl_imp( init_cj_arrays(&ta); /* Zero temporary arrays */ - if (s->verbose && s->zf) - printf("Doing extra fitting\n"); + if (s->verbose && s->ausm) { +#ifdef AUTOSM + printf("Doing automatic local smoothing optimization\n"); +#else + printf("Automatic local smoothing flag ignored !!!\n"); +#endif + } /* Do fit of grid to data for each output dimension */ for (f = 0; f < fdi; f++) { - int nn = 0; /* Multigreid resolution itteration index */ - int zfcount = ZFCOUNT; /* Number of extra fit adjustments to do */ - int donezf = 0; /* Count - number of extra fit adjustments done */ float *gp; mgtmp *m = NULL; - for (donezf = 0; donezf <= s->zf; donezf++) { /* For each extra fit pass */ +#ifdef NEVER // ~~99 remove this + mgtmp *sm = NULL; /* Auto smoothness map */ - for (s->tpsm2 = 0; s->tpsm2 <= s->tpsm; s->tpsm2++) { /* For passes of 2 pass smoothing */ + /* If auto smoothness, create smoothing map */ + if (s->ausm) { + int res[MXDI]; + int mxres[5] = { 0, 101, 51, 17, 11 }; + int smres[5] = { 0, 12, 8, 6, 6 }; - /* For each resolution (itteration) */ - for (nn = 0; nn < s->niters; nn++) { + /* Set target resolution for initial fit */ + for (e = 0; e < s->di; e++) { + res[e] = s->g.res[e]; - m = new_mgtmp(s, s->ires[nn], f); - s->mgtmps[f][nn] = (void *)m; + if (res[e] > mxres[s->di]) + res[e] = mxres[s->di]; + } - if (s->tpsm && s->tpsm2 != 0) { /* 2nd pass of 2 pass smoothing */ - init_ccv(m); /* Downsample m->ccv from s->g.ccv */ - } - setup_solve(m); + /* Setup the number of itterations and resolution for each itteration */ + set_it_info(s, res, &s->as_ii); - if (nn == 0) { /* Make sure we have an initial x[] */ - for (i = 0; i < m->g.no; i++) - m->q.x[i] = s->d.va[f]; /* Start with average data value */ - } else { - init_soln(m, s->mgtmps[f][nn-1]); /* Scale from previous resolution */ +printf("~1 s->smooth = %f, avgdev[f] = %f\n",s->smooth, s->avgdev[f]); - free_mgtmp(s->mgtmps[f][nn-1]); /* Free previous grid res solution */ - s->mgtmps[f][nn-1] = NULL; - } + /* First pass fit with heavy smoothing */ + m = fit_rspl_plane_imp(s, f, &s->as_ii, 1.0, 0.1, NULL, &ta); - solve_gres(m, &ta, -#if defined(GRADUATED_TOL) - TOL * s->g.res[s->g.brix]/s->ires[nn][s->g.brix], -#else - TOL, -#endif - s->ires[nn][s->g.brix] >= s->g.res[s->g.brix]); /* Use itterative */ +printf("Initial high smoothing fit of output %d:\n",f); +plot_mgtmp1(m); - } /* Next resolution */ + /* Compute the fit error values from first pass */ + comp_fit_errors(m); /* Compute correction to data target values */ - if (s->tpsm && s->tpsm2 == 0) { - double fstdev; /* Filter standard deviation */ -//printf("~1 setting up second pass smoothing !!!\n"); + free_mgtmp(m); - /* Compute the curvature compensation values from */ - /* first pass final resolution */ - comp_ccv(m); + /* Set target resolution for smoothness map */ + for (e = 0; e < s->di; e++) + res[e] = smres[s->di]; - if (s->smooth >= 0.0) { - /* Compute from: no dim, no data points, avgdev & extrafit */ - fstdev = 0.05 * s->smooth; -fprintf(stderr,"~1 !!! Gaussian smoothing not being computed Using default %f !!!\n",fstdev); - } else { /* Special used to calibrate table */ - fstdev = -s->smooth; - } -//fprintf(stderr,"~1 Gaussian smoothing with fstdev %f !!!\n",fstdev); - /* Smooth the ccv's */ - filter_ccv(s, fstdev); - } - } /* Next two pass smoothing pass */ - if (s->zf) - comp_extrafit_corr(m); /* Compute correction to data target values */ - } /* Next extra fit pass */ - - /* Clean up after 2 pass smoothing */ - s->tpsm2 = 0; - if (s->g.ccv != NULL) { - free_dmatrix(s->g.ccv, 0, s->g.no-1, 0, s->di-1); - s->g.ccv = NULL; + set_it_info(s, res, &s->asm_ii); + + /* Create smoothness map from fit errors */ + sm = fit_rspl_plane_imp(s, -1, &s->asm_ii, -50000, 0.0, NULL, &ta); +// sm = fit_rspl_plane_imp(s, -1, &s->asm_ii, 1000.0, 0.1, NULL, &ta); +printf("Smoothness map for output %d:\n",f); +plot_mgtmp1(sm); } +#endif /* NEVER */ + + /* Fit data for this plane */ + m = fit_rspl_plane_imp(s, f, &s->ii, s->smooth, s->avgdev[f], /* sm, */ &ta); +//printf("Final fit for output %d:\n",f); +//plot_mgtmp1(m); /* Transfer result in x[] to appropriate grid point value */ for (gp = s->g.a, i = 0; i < s->g.no; gp += s->g.pss, i++) gp[f] = (float)m->q.x[i]; - free_mgtmp(s->mgtmps[f][nn-1]); /* Free final resolution entry */ - s->mgtmps[f][nn-1] = NULL; + free_mgtmp(m); /* Free final resolution entry */ + +// if (sm != NULL) /* Free smoothing map */ +// free_mgtmp(sm); } /* Next output channel */ @@ -862,25 +1010,8 @@ init_data(rspl *s) { /* Free the scattered data allocation */ void free_data(rspl *s) { - int i, f; - if (s->ires != NULL) { - free_imatrix(s->ires, 0, s->niters, 0, s->di); - s->ires = NULL; - } - - /* Free up mgtmps */ - for (f = 0; f < s->fdi; f++) { - if (s->mgtmps[f] != NULL) { - for (i = 0; i < s->niters; i++) { - if (s->mgtmps[f][i] != NULL) { - free_mgtmp(s->mgtmps[f][i]); - } - } - free(s->mgtmps[f]); - s->mgtmps[f] = NULL; - } - } + freeit_info(s, &s->ii); if (s->d.a != NULL) { /* Free up the data point data */ free((void *)s->d.a); @@ -929,13 +1060,28 @@ free_data(rspl *s) { /* !!! Possible answer - should be using third order differences */ /* for controlling smoothness, not second order (curvature) ?? */ +/* Should adapt smoothing to noise level in different parts of gamut. */ +/* Fix scaling smoothing to data range bug! */ + +/* Smoothness tweak */ +static double tweak[21] = { + 8.0891733310676571e-263, 1.1269230397087924e+243, 5.5667427967136639e+170, + 4.6422059659371074e-072, 4.7573037006103243e-038, 2.2050803446598081e-152, + 1.9082109674254010e-094, 1.2362202651281476e+262, 1.8334727652805863e+044, + 1.7193993129127580e-139, 8.4028172720870109e-316, 7.7791723264393403e-260, + 4.5505694361996285e+198, 1.4450789782663302e+214, 4.8548304485951407e-033, + 6.0848773033767158e-153, 2.2014810203887549e+049, 6.0451581453053059e-153, + 4.5657997262605343e+233, 1.1415770815909824e+243, 2.0087364177250134e-139 +}; + +#ifndef SMOOTH2 -// ~~99 static double opt_smooth( rspl *s, int di, /* Dimensions */ int ndp, /* Number of data points */ - double ad /* Average sample deviation (proportion of input range) */ + double ad, /* Average sample deviation (proportion of input range) */ + int f /* Output chanel */ ) { int i; double nc; /* Normalised sample count */ @@ -1027,22 +1173,13 @@ static double opt_smooth( } }; - /* Smoothness tweak */ - static double tweak[21] = { - 8.0891733310676571e-263, 1.1269230397087924e+243, 5.5667427967136639e+170, - 4.6422059659371074e-072, 4.7573037006103243e-038, 2.2050803446598081e-152, - 1.9082109674254010e-094, 1.2362202651281476e+262, 1.8334727652805863e+044, - 1.7193993129127580e-139, 8.4028172720870109e-316, 7.7791723264393403e-260, - 4.5505694361996285e+198, 1.4450789782663302e+214, 4.8548304485951407e-033, - 6.0848773033767158e-153, 2.2014810203887549e+049, 6.0451581453053059e-153, - 4.5657997262605343e+233, 1.1415770815909824e+243, 2.0087364177250134e-139 - }; - /* Real world correction factors go here - */ /* None needed at the moment ? */ double rwf[4] = { 1.0, 1.0, 1.0, 1.0 }; /* Factor for each dimension */ -//printf("~1 opt_smooth called with di = %d, ndp = %d, ad = %f\n",di,ndp,ad); +#ifdef DEBUG + printf("opt_smooth called with di = %d, ndp = %d, ad = %e, f = %d\n",di,ndp,ad,f); +#endif if (di < 1) di = 1; nc = pow((double)ndp, 1.0/(double)di); /* Normalised sample count */ @@ -1088,13 +1225,17 @@ static double opt_smooth( } /* Lookup & interpolate the log smoothness factor */ -//printf("~1 di = %d, ncix = %d, adix = %d\n",di,ncix,adix); +#ifdef DEBUG + printf("di = %d, ncix = %d, adix = %d\n",di,ncix,adix); +#endif lsm = smf[di][ncix][adix] * ncw * adw; lsm += smf[di][ncix][adix+1] * ncw * (1.0 - adw); lsm += smf[di][ncix+1][adix] * (1.0 - ncw) * adw; lsm += smf[di][ncix+1][adix+1] * (1.0 - ncw) * (1.0 - adw); -//printf("~1 lsm = %f\n",lsm); +#ifdef DEBUG + printf("lsm = %f\n",lsm); +#endif for (tweakf = 0.0, i = 1; i < 21; i++) tweakf += tweak[i]; @@ -1105,10 +1246,105 @@ static double opt_smooth( /* and correct for the real world with a final tweak table */ sm *= rwf[di]; -//printf("Got log smth %f, returning %1.9f from ncix %d, ncw %f, adix %d, adw %f\n", lsm, sm, ncix, ncw, adix, adw); +#ifdef DEBUG + printf("opt_smooth got sm %e before output range adjustment\n",sm); +#endif +#ifndef SMOOTH2 + /* This is incorrect, but is built into the tables of releases. */ + /* It is one of the things stuffing up XYZ profiles. */ + /* Remove it after re-tuning with SMOOTH2 */ + sm *= s->d.vw[f]; /* Scale curvature weight for data range */ +#endif +#ifdef DEBUG + printf("opt_smooth returning sm %e after output range adjustment\n",sm); +#endif + +#ifdef DEBUG + printf("Got log smth %f, returning %1.9f from ncix %d, ncw %f, adix %d, adw %f\n", lsm, sm, ncix, ncw, adix, adw); +#endif + return sm; +} + +#else /* Smooth 2 */ + +/* - - - - - - - - - - - - - - - - - - - - - - - -*/ +/* Smooth2 optimal smoothness calculation. */ +/* + + This is for 3rd order smoothness, and uses a set of fitted + equations rather than a table. + +*/ + +static double opt_smooth( + rspl *s, + int di, /* Dimensions */ + int ndp, /* Number of data points */ + double ad, /* Average sample deviation (proportion of input range) */ + int f /* Output chanel */ +) { + int i; + double tweakf; + struct { + double nscale, noffset; /* Number data point scale & offset */ + double nmax, nmin; /* Number data point max and min values */ + double dscale, doffset; /* Deviation scale & offset */ + int l_nid; + } params[4] = { + { -6.80, 3.50, -2.00, -8.00, 1.50, -0.7 }, /* 1d */ + { -6.00, -7.50, -1.85, -6.40, 1.60, 0.6 }, /* 2d */ + { -0.84, -0.36, -1.68, -3.70, 1.75, 1.85 }, /* 3d */ + { -4.00, 11.20, -0.75, -2.30, 1.55, 2.35 } /* 4d */ + }; + + /* Real world correction factors go here - */ + /* None needed at the moment ? */ + double rwf[4] = { 0.0, 0.0, 0.0, 0.0 }; /* Log10 factor to add for each dimension */ + + double lndp; /* log10 of ndp */ + double lad; /* log10 of ad */ + double lmin; /* log10 of minimum level */ + double sm, lsm; /* log10 of smoothness needed */ + + if (di < 1) + di = 1; + if (di > 4) + di = 4; + di--; /* Make di 0..3 */ + if (ad <= 1e-9) + ad = 1e-9; + +//printf("~1 opt_smooth2 called with di = %d, nodp = %d, avgdev = %f\n",di,ndp,ad); + + lndp = log10(ndp); + + lmin = lndp * params[di].nscale + params[di].noffset; + if (lmin > params[di].nmax) + lmin = params[di].nmax; + if (lmin < params[di].nmin) + lmin = params[di].nmin; +//printf("lmin = %f from lndp\n",lmin,lndp); + + lad = log10(ad); + lsm = log10(pow(10.0, lmin) + pow(10.0, lad * params[di].dscale + params[di].doffset)); +//printf("lsm = %f from lmin %f lad %f dscale %f doff %f\n",lmin,lmin,lad,params[di].dscale,params[di].doffset); + + /* and correct for the real world with a final tweak table */ + lsm += rwf[di]; + + for (tweakf = 0.0, i = 1; i < 21; i++) + tweakf += tweak[i]; + tweakf *= tweak[0]; + + sm = pow(10.0, lsm * tweakf); + +//printf("Got log smth %f, returning sm %1.9f from di %d, nodp %d, avgdev %f\n", lsm, sm,di+1,ndp,ad); + return sm; } +#endif /* SMOOTH2 */ + /* - - - - - - - - - - - - - - - - - - - - - - - -*/ /* Multi-grid temp structure (mgtmp) routines */ @@ -1117,7 +1353,10 @@ static double opt_smooth( static mgtmp *new_mgtmp( rspl *s, /* associated rspl */ int gres[MXDI], /* resolution to create */ - int f /* output dimension */ + double smooth, /* Smoothing factor */ + double avgdev, /* Average deviation to use to set smoothness */ + int f, /* output dimension */ + int issm /* We are creating a smoothness map */ ) { mgtmp *m; int di = s->di; @@ -1125,6 +1364,9 @@ static mgtmp *new_mgtmp( int gno, nigc; int gres_1[MXDI]; int e, g, n, i; +#ifdef AUTOSM + loocv *as = NULL; +#endif /* Allocate a structure */ if ((m = (mgtmp *) calloc(1, sizeof(mgtmp))) == NULL) @@ -1203,13 +1445,13 @@ static mgtmp *new_mgtmp( } /* Compute curvature weighting for matching intermediate resolutions for */ - /* the number of grid points curvature that is accuumulated, as well as the */ + /* the number of grid points curvature that is accumulated, as well as the */ /* geometric effects of a finer fit to the target surface. */ /* This is all to keep the ratio of sum of smoothness error squared */ /* constant in relationship to the sum of data point error squared. */ for (e = 0; e < di; e++) { double rsm; /* Resolution smoothness factor */ - double smooth; + double smval; if (s->symdom) rsm = m->g.res[e]; /* Relative final grid size */ @@ -1221,25 +1463,32 @@ static mgtmp *new_mgtmp( /* (is ^2 for res. * ^2 with error squared) */ rsm /= nigc; /* Average squared non-smoothness */ - /* 2 pass smoothing */ - if (s->tpsm) { - double lsm; + /* Normal */ + if (smooth >= 0.0) { - lsm = -6.0; - if (s->tpsm2 != 0) /* Two pass smoothing second pass */ - lsm += 2.0; /* Use 100 times the smoothness */ - m->sf.cw[e] = pow(10.0, lsm) * rsm; + /* Use auto smoothing map in setup */ +// if (sm != NULL) { +// smval = 1.0; +// } else { - /* Normal */ + /* Table lookup for optimum smoothing factor */ + smval = opt_smooth(s, di, s->d.no, avgdev, f); +//printf("~1 opt_smooth returned %e\n",smval); +#ifdef SMOOTH2 + m->sf.cw[e] = CW * smooth * smval * rsm; + m->sf.cw2[e] = CW2 * smooth * smval * rsm; +#else + m->sf.cw[e] = smooth * smval * rsm; +//printf("~1 cw[%d] %f = smooth %f * smval %e * rsm %f\n",e,m->sf.cw[e],smooth,smval,rsm); +#endif + /* Special used to calibrate table */ } else { - - if (s->smooth >= 0.0) { - /* Table lookup for optimum smoothing factor */ - smooth = opt_smooth(s, di, s->d.no, s->avgdev[f]); - m->sf.cw[e] = s->smooth * smooth * rsm; - } else { /* Special used to calibrate table */ - m->sf.cw[e] = -s->smooth * rsm; - } +#ifdef SMOOTH2 + m->sf.cw[e] = CW * -smooth * rsm; + m->sf.cw2[e] = CW2 * -smooth * rsm; +#else + m->sf.cw[e] = -smooth * rsm; +#endif } } @@ -1248,6 +1497,33 @@ static mgtmp *new_mgtmp( /* changes in grid resolution and dimensionality. */ m->wdfw = s->weak * WEAKW/(m->g.no * (double)di); +#ifdef AUTOSM + if (s->ausm) { + if ((m->as = (loocv *) calloc(1, sizeof(loocv))) == NULL) + error("rspl: malloc failed - loocv"); + + as = m->as; + as->m = m; + + /* Allocate space for arrays keeping track of */ + /* cells with data points in them. */ + if ((as->dlist = ivector(0, dno-1)) == NULL) + error("rspl: malloc of vector dlist failed"); + + if ((as->vtx_dlist = ivector(0,m->g.no-1)) == NULL) + error("rspl: malloc of vector vtx_dlist failed"); + + for (i = 0; i < m->g.no; i++) + as->vtx_dlist[i] = -1; + + if ((as->dat_dlist = ivector(0, dno-1)) == NULL) + error("rspl: malloc of vector dat_dlist failed"); + + for (i = 0; i < dno; i++) + as->dat_dlist[i] = -1; + } +#endif + /* Allocate space for auiliary data point related info */ if ((m->d = (struct mgdat *) calloc(dno, sizeof(struct mgdat))) == NULL) error("rspl: malloc failed - mgtmp"); @@ -1293,10 +1569,19 @@ static mgtmp *new_mgtmp( printf("%d: %f\n",e,m->d[n].w[e]); } #endif /* DEBUG */ + +#ifdef AUTOSM + if (s->ausm && m->as != NULL) { + /* Add data point to per cell list */ + if (as->vtx_dlist[ix] == -1) + as->dlist[as->ndcells++] = ix; + as->dat_dlist[n] = as->vtx_dlist[ix]; + as->vtx_dlist[i] = n; + } +#endif /* AUTOSM */ } /* Set the solution matricies to unalocated */ - m->q.ccv = NULL; m->q.A = NULL; m->q.ixcol = NULL; m->q.b = NULL; @@ -1305,6 +1590,21 @@ static mgtmp *new_mgtmp( return m; } +#ifdef AUTOSM +/* Completely free an loocv */ +static void free_loocv(loocv *as) { + mgtmp *m = as->m; + rspl *s = m->s; + + free_ivector(as->dlist, 0, s->d.no-1); + free_ivector(as->vtx_dlist, 0, m->g.no-1); + free_ivector(as->dat_dlist, 0, s->d.no-1); + + free(as); +} + +#endif + /* Completely free an mgtmp */ static void free_mgtmp(mgtmp *m) { int e, di = m->s->di, gno = m->g.no; @@ -1313,49 +1613,125 @@ static void free_mgtmp(mgtmp *m) { if (m->g.ipos[e] != NULL) free(m->g.ipos[e]); } - if (m->q.ccv != NULL) - free_dmatrix(m->q.ccv,0,gno-1,0,di-1); free_dvector(m->q.x,0,gno-1); free_dvector(m->q.b,0,gno-1); free((void *)m->q.ixcol); free_dmatrix(m->q.A,0,gno-1,0,m->q.acols-1); free((void *)m->d); + +#ifdef AUTOSM + if (m->as != NULL) + free_loocv(m->as); +#endif free((void *)m); } -/* Initialise the A[][] and b[] matricies ready to solve, given f */ -/* (Can be used to re-initialize an mgtmp for changing curve/extra fit factors) */ -/* We are setting up the matrix equation Ax = b to solve, where the aim is */ -/* to solve the energy minimization problem by setting up a series of interconnected */ -/* equations for each grid node value (x) in which the partial derivative */ -/* of the equation to be minimized is zero. The A matrix holds the dependence on */ -/* the grid points with regard to smoothness and interpolation */ -/* fit to the scattered data points, while b holds constant values (e.g. the data */ -/* point determined boundary conditions). A[][] stores the packed sparse triangular matrix. */ +#ifdef NEVER -/* +/* Return the curreb A[][] * x[] value. */ +/* (We use this to determine smoothness factor sensitivity for each */ +/* point with just smoothness weighting factors present) */ +static double smth_err +( + double **A, /* Sparse A[][] matrix */ + double *x, /* x[] matrix */ + int gno, /* Total number of unknowns */ + int acols, /* Use colums in A[][] */ + int *xcol /* sparse expansion lookup array */ +) { + int i, k; + double rv; - The overall equation to be minimized is: + /* Compute norm of b - A * x */ + rv = 0.0; + for (i = 0; i < gno; i++) { + int k0,k1,k2,k3; + double sm = 0.0; - sum(curvature errors at each grid point) ^ 2 - + sum(data interpolation errors) ^ 2 + /* Diagonal and to right in 4's */ + for (k = 0, k3 = i + xcol[k]; k < acols && k3 < gno; k++, k3 = i + xcol[k]) { + sm += A[i][k] * x[k3]; +//printf("i %d: A[%d][%d] %f * x[%d] %f = %f\n", i, i, k, A[i][k], k3, x[k3], A[i][k] * x[k3]); + } - The way this is solved is to take the partial derivative of - the above with respect to each grid point value, and simultaineously - solve all the partial derivative equations for zero. + /* Left of diagonal in 4's */ + /* (We take advantage of the symetry: what would be in the row */ + /* to the left is repeated in the column above.) */ + for (k = 1, k3 = i-xcol[k]; k < acols && k3 >= 0; k++, k3 = i-xcol[k]) { + sm += A[k3][k] * x[k3]; +//printf("i %d: A[%d][%d] %f * x[%d] %f = %f\n", i, k3, k, A[k3][k], k3, x[k3], A[k3][k] * x[k3]); + } - Each row of A[][] and b[] represents the cooeficients of one of - the partial derivative equations (it does NOT correspond to one - grid points curvature etc.). Because the partial derivative - of any sum term that does not have the grid point in question in it - will have a partial derivative of zero, each row equation consists - of just those terms that have that grid points value in it, + rv += sm * sm; + } + + return rv; +} + + +/* Print out the smoothness error sensitivity for each data location */ +static void +print_smsens(mgtmp *m) { + + rspl *s = m->s; + int di = s->di; + int gno = m->g.no, *gres = m->g.res, *gci = m->g.ci; + int i; + double **A = m->q.A; /* A matrix of interpoint weights */ + int acols = m->q.acols; /* A matrix columns needed */ + int *xcol = m->q.xcol; /* A array column translation from packed to sparse index */ + double *x = m->q.x; /* x vector for result */ + + for (i = 0; i < gno; i++) + x[i] = 0.0; + + for (i = 0; i < gno; i++) { + double ss; + + x[i] = 1.0; + ss = smth_err(A, x, gno, acols, xcol); + x[i] = 0.0; + + printf("Smoothness sens %d = %e\n",i,ss); + } +} + +#endif /* NEVER */ + +/* Initialise the A[][] and b[] matricies ready to solve, given f */ +/* (Can be used to re-initialize an mgtmp for changing curve/extra fit factors) */ +/* We are setting up the matrix equation Ax = b to solve, where the aim is */ +/* to solve the energy minimization problem by setting up a series of interconnected */ +/* equations for each grid node value (x) in which the partial derivative */ +/* of the equation to be minimized is zero. The A matrix holds the dependence on */ +/* the grid points with regard to smoothness and interpolation */ +/* fit to the scattered data points, while b holds constant values (e.g. the data */ +/* point determined boundary conditions). A[][] stores the packed sparse triangular matrix. */ + +/* + + The overall equation to be minimized is: + + sum(curvature errors at each grid point) ^ 2 + + sum(data interpolation errors) ^ 2 + + The way this is solved is to take the partial derivative of + the above with respect to each grid point value, and simultaineously + solve all the partial derivative equations for zero. + + Each row of A[][] and b[] represents the cooeficients of one of + the partial derivative equations (it does NOT correspond to one + grid points curvature etc.). Because the partial derivative + of any sum term that does not have the grid point in question in it + will have a partial derivative of zero, each row equation consists + of just those terms that have that grid points value in it, with the vast majoroty of the sum terms omitted. */ static void setup_solve( - mgtmp *m /* initialized grid temp structure */ +mgtmp *m, /* initialized grid temp structure */ +mgtmp *sm /* Optional smoothing map for ausm mode */ ) { rspl *s = m->s; int di = s->di; @@ -1363,10 +1739,9 @@ static void setup_solve( int *gres = m->g.res, *gci = m->g.ci; int f = m->f; /* Output dimensions being worked on */ - double **ccv = m->q.ccv; /* ccv vector for adjusting simultabeous equation */ double **A = m->q.A; /* A matrix of interpoint weights */ int acols = m->q.acols; /* A matrix packed columns needed */ - int *xcol = m->q.xcol; /* A array column translation from packed to sparse index */ + int *xcol = m->q.xcol; /* A array column translation from packed to sparse index */ int *ixcol = m->q.ixcol; /* A array column translation from sparse to packed index */ double *b = m->q.b; /* b vector for RHS of simultabeous equation */ double *x = m->q.x; /* x vector for LHS of simultabeous equation */ @@ -1374,15 +1749,21 @@ static void setup_solve( double oawt; /* Overall adjustment weight */ double nbsum; /* normb sum */ -//printf("~1 setup_solve got ccv = 0x%x\n",ccv); +#ifdef DEBUG + printf("setup_solve got sm = %p\n",sm); +#endif /* Allocate and init the A array column sparse packing lookup and inverse. */ - /* Note that this only works for a minumum grid resolution of 4. */ + /* Note that this only works for a minumum grid resolution of 4/5. */ /* The sparse di dimension region allowed for is a +/-1 cube around the point */ /* question, plus +/-2 offsets in axis direction only, */ - /* plus +/-3 offset in axis directions if 2nd order smoothing is defined. */ + /* plus +/-3 offset in axis directions if SMOOTH2 is defined. */ if (A == NULL) { /* Not been allocated previously */ +#ifdef SMOOTH2 DCOUNT(gc, MXDIDO, di, -3, -3, 4); /* Step through +/- 3 cube offset */ +#else + DCOUNT(gc, MXDIDO, di, -2, -2, 3); /* Step through +/- 2 cube offset */ +#endif int ix; /* Grid point offset in grid points */ acols = 0; @@ -1405,13 +1786,13 @@ static void setup_solve( /* or if it has exactly one +/-2 and otherwise 0 */ if ((n3 == 0 && n2 == 0) || (n2 == 1 && nz == (di-1)) -#ifdef SMOOTH2 || (n3 == 1 && nz == (di-1)) -#endif /* SMOOTH2*/ ) { for (ix = 0, k = 0; k < di; k++) ix += gc[k] * gci[k]; /* Multi-dimension grid offset */ if (ix >= 0) { + if (acols >= XCOLPMAX) + error("rspl internal: exceeded xcol bounds"); xcol[acols++] = ix; /* We only store half, due to symetry */ } } @@ -1459,7 +1840,6 @@ static void setup_solve( } /* Stash in the mgtmp */ - m->q.ccv = ccv; m->q.A = A; m->q.b = b; m->q.x = x; @@ -1475,6 +1855,13 @@ static void setup_solve( b[i] = 0.0; } + /* Compute adjustment cooeficient */ + { + for (oawt = 0.0, i = 1; i < 21; i++) + oawt += wvals[i]; + oawt *= wvals[0]; + } + /* Production version, without extra edge weight */ /* Accumulate curvature dependent factors to the triangular A matrix. */ @@ -1490,9 +1877,9 @@ static void setup_solve( The old curvature fixed grid spacing equation was: ki * (u[i-1] - 2 * u[i] + u[i+1])^2 with derivatives wrt each node: - ki-1 * 1 * 2 * u[i-1] - ki * -2 * 2 * u[i] - ki+1 * 1 * 2 * u[i+1] + ki-1 * 1 * 2 * eqn(i-1) + ki * -2 * 2 * eqn(i) + ki+1 * 1 * 2 * eqn(i+1) Allowing for scaling of each grid difference by w[i-1] and w[i], where w[i-1] corresponds to the width of cell i-1 to i, @@ -1503,26 +1890,14 @@ static void setup_solve( ki-1 * w[i-1] * w[i-1] * u[i-1] ki * -(w[i-1] + w[i]) * -(w[i-1] + w[i]) * u[i]) ki+1 * w[i] * w[i] * u[i+1] - - The weighting is adjusted to compensate for increased - grid density by the dw weight, and for the different - scaling either side of a grid point with the w0 and w1 scale. - Both are normalised so that the overall smoothness scaling - factor applies. */ +#define V17 /* Enable V1.7 code */ { /* Setting this up from scratch */ - double dwtw[MXDIDO]; /* Density weight normalizer */ - int wtwc[MXDIDO]; +// double dwtw[MXDIDO]; /* Density weight normalizer = average grid widths */ ECOUNT(gc, MXDIDO, di, 0, gres, 0); - for (oawt = 0.0, i = 1; i < 21; i++) - oawt += wvals[i]; - oawt *= wvals[0]; - -#define EN_DW /* Enable grid density weighting */ -#define EN_CW /* Enable grid scale weighting */ - +#ifdef NEVER /* We're not using density adjustment */ /* Compute the ipos[] weight normalisation factors */ for (e = 0; e < di; e++) { if (m->g.ipos[e] == NULL) @@ -1532,108 +1907,305 @@ static void setup_solve( double w; w = fabs(m->g.ipos[e][i] - m->g.ipos[e][i-1]); //printf("[%d][%d] w = %f\n",e,i,w); - dwtw[e] += w; +// dwtw[e] += w; + dwtw[e] += 1.0/w; } dwtw[e] /= (gres[e] - 1.0); /* Average weights */ + dwtw[e] = 1.0/dwtw[e]; //printf("dwtw[%d] = %f\n",e,dwtw[e]); } +#endif EC_INIT(gc); for (i = 0; i < gno; i++) { + double smf = 1.0; + +#ifdef AUTOSM + /* Lookup smoothing factor map */ + if (sm != NULL) { + double p[MXDI]; + double avgdev; + for (e = 0; e < di; e++) + p[e] = gc[e]/(gres[e] - 1.0); + + avgdev = mgtmp_interp(sm, p); + smf = opt_smooth(s, di, s->d.no, avgdev, f); + } +#endif /* AUTOSM */ for (e = 0; e < di; e++) { /* For each curvature direction */ double dw, w0, w1, tt; - double cw = 2.0 * m->sf.cw[e]; /* Overall curvature weight */ - cw *= s->d.vw[f]; /* Scale curvature weight for data range */ + double cw = smf * 2.0 * m->sf.cw[e]; /* Overall curvature weight */ +//printf("~1 cw %f = smf %f * 2 * sd.cw[%d] %f\n",cw,smf,e,m->sf.cw[e]); - /* If at least two above lower edge in this dimension */ /* Add influence on Curvature of cell below */ - if ((gc[e]-2) >= 0) { + if ((gc[e]-2) >= 0 && (gc[e]+0) < gres[e]) { /* double kw = cw * gp[UO_C(e,1)].k; */ /* Cell bellow k value */ double kw = cw; - dw = w1 = 1.0; + w0 = w1 = 1.0; if (m->g.ipos[e] != NULL) { w0 = fabs(m->g.ipos[e][gc[e]-1] - m->g.ipos[e][gc[e]-2]); w1 = fabs(m->g.ipos[e][gc[e]-0] - m->g.ipos[e][gc[e]-1]); //printf("raw [%d][%d] w0 = %f, w1 = %f\n",gc[e],i,w0,w1); -#ifdef EN_DW - dw = 0.5 * (w0 + w1); /* in this direction around -1 */ - dw = dw/dwtw[e]; /* normalise */ -#endif - tt = sqrt(w0 * w1); + tt = 0.5 * (w0 + w1); /* Local full normalisation */ + w0 = tt/w0; w1 = tt/w1; -#ifndef EN_CW - w1 = 1.0; -#endif -//printf("[%d][%d] dw = %f, w1 = %f\n",gc[e],i,dw,w1); +//printf("[%d][%d] w1 = %f\n",gc[e],i,w1); } - A[i][ixcol[0]] += dw * w1 * w1 * kw; - if (ccv != NULL) - b[i] += kw * (w1) * ccv[i - gci[e]][e]; /* Curvature compensation value */ + + A[i][ixcol[0]] += w1 * w1 * kw; +//printf("A[%d][%d] = %f\n",i,0,A[i][ixcol[0]]); } - /* If not one from upper or lower edge in this dimension */ /* Add influence on Curvature of this cell */ if ((gc[e]-1) >= 0 && (gc[e]+1) < gres[e]) { /* double kw = cw * gp->k; */ /* This cells k value */ double kw = cw; - dw = w0 = w1 = 1.0; + w0 = w1 = 1.0; if (m->g.ipos[e] != NULL) { w0 = fabs(m->g.ipos[e][gc[e]-0] - m->g.ipos[e][gc[e]-1]); w1 = fabs(m->g.ipos[e][gc[e]+1] - m->g.ipos[e][gc[e]-0]); //printf("raw [%d][%d] w0 = %f, w1 = %f\n",gc[e],i,w0,w1); -#ifdef EN_DW - dw = 0.5 * (w0 + w1); /* in this direction around 0 */ - dw = dw/dwtw[e]; /* normalise */ -#endif - tt = sqrt(w0 * w1); + tt = 0.5 * (w0 + w1); w0 = tt/w0; w1 = tt/w1; -#ifndef EN_CW - w0 = w1 = 1.0; -#endif -//printf("[%d][%d] dw = %f, w0 = %f, w1 = %f\n",gc[e],i,dw,w0,w1); +//printf("[%d][%d] w0 = %f, w1 = %f\n",gc[e],i,w0,w1); } - A[i][ixcol[0]] += dw * -(w0 + w1) * -(w0 + w1) * kw; - A[i][ixcol[gci[e]]] += dw * -(w0 + w1) * w1 * kw * oawt; - if (ccv != NULL) - b[i] += kw * -(w0 + w1) * ccv[i][e]; /* Curvature compensation value */ + A[i][ixcol[0]] += -(w0 + w1) * -(w0 + w1) * kw; + A[i][ixcol[gci[e]]] += -(w0 + w1) * w1 * kw * oawt; +//printf("A[%d][%d] = %f\n",i,0,A[i][ixcol[0]]); +//printf("A[%d][%d] = %f\n",i,1,A[i][ixcol[gci[e]]]); } - /* If at least two below the upper edge in this dimension */ /* Add influence on Curvature of cell above */ - if ((gc[e]+2) < gres[e]) { + if ((gc[e]+0) >= 0 && (gc[e]+2) < gres[e]) { /* double kw = cw * gp[UO_C(e,2)].k; */ /* Cell above k value */ double kw = cw; - dw = w0 = w1 = 1.0; + w0 = w1 = 1.0; if (m->g.ipos[e] != NULL) { w0 = fabs(m->g.ipos[e][gc[e]+1] - m->g.ipos[e][gc[e]+0]); w1 = fabs(m->g.ipos[e][gc[e]+2] - m->g.ipos[e][gc[e]+1]); //printf("raw [%d][%d] w0 = %f, w1 = %f\n",gc[e],i,w0,w1); -#ifdef EN_DW - dw = 0.5 * (w0 + w1); /* in this direction around +1 */ - dw = dw/dwtw[e]; /* normalise */ -#endif - tt = sqrt(w0 * w1); + tt = 0.5 * (w0 + w1); w0 = tt/w0; w1 = tt/w1; -#ifndef EN_CW - w0 = w1 = 1.0; -#endif -//printf("[%d][%d] dw = %f, w0 = %f, w1 = %f\n",gc[e],i,dw,w0,w1); +//printf("[%d][%d] w0 = %f, w1 = %f\n",gc[e],i,w0,w1); + } + + A[i][ixcol[0]] += w0 * w0 * kw; + A[i][ixcol[1 * gci[e]]] += w0 * -(w0 + w1) * kw; + A[i][ixcol[2 * gci[e]]] += w0 * w1 * kw; +//printf("A[%d][%d] = %f\n",i,0,A[i][ixcol[0]]); +//printf("A[%d][%d] = %f\n",i,1,A[i][ixcol[gci[e]]]); +//printf("A[%d][%d] = %f\n",i,2,A[i][ixcol[2 * gci[e]]]); + } + } + EC_INC(gc); + } + } +#ifdef DEBUG + printf("After adding 2nd order smoothing:\n"); + for (i = 0; i < gno; i++) { + int *xcol = m->q.xcol; + printf("b[%d] = %f\n",i,b[i]); + for (k = acols-1; k > 0; k--) { + if ((i - xcol[k]) >= 0) + printf("A[%d][-%d] = %f\n",i,k,A[i-xcol[k]][k]); + } + for (k = 0; k < acols && (i + xcol[k]) < gno; k++) + printf("A[%d][%d] = %f\n",i,k,A[i][k]); + printf("\n"); + } +#endif /* DEBUG */ + +#ifdef SMOOTH2 + /* Accumulate curvature 2nd order dependent factors to the triangular A matrix. */ + /* Because it's triangular, we compute and add in all the weighting */ + /* factors at and to the right of each cell. */ + + /* The ipos[] factor is to allow for the possibility that the */ + /* grid spacing may be non-uniform in the colorspace where the */ + /* function being modelled is smooth. Our curvature computation */ + /* needs to make allowsance for this fact in computing the */ + /* node value differences that equate to zero curvature. */ + /* + The old curvature fixed grid spacing equation was: + ki * (u[i-1] - 3 * u[i] + 3 * u[i+1] - u[i+2] )^2 + with derivatives wrt each node: + ki-1 * 1 * 2 * eqn(i) + ki * -3 * 2 * eqn(i) + ki+1 * 3 * 2 * eqn(i) + ki+2 * 1 * 2 * eqn(i) + + Allowing for scaling of each grid difference by w[i-1], w[i] and w[i+1], + where w[i-1] corresponds to the width of cell i-1 to i, + and w[i] corresponds to the width of cell i to i+1: + where w[i+1] corresponds to the width of cell i+1 to i+2, + w' = 1/w + + ki * ( w'[i+1] * (u[i+2] - u[i+1]) + - 2 * w'[i] * (u[i+1] - u[i]) + + w'[i-1] * (u[i] - u[i-1]) )^2 + + multiply out to group the node values: + ki * ( w'[i+1] * u[i+2] + - (w'[i+1] + 2 * w'[i]) * u[i+1] + + (2 * w'[i] + w'[i-1]) * u[i] + + w'[i-1] * u[i-1] )^2 + + with derivatives wrt each node: + ~~~ + + */ + + { /* Setting this up from scratch */ + double dwtw[MXDIDO]; /* Density weight normalizer */ + ECOUNT(gc, MXDIDO, di, 0, gres, 0); + EC_INIT(gc); + + /* Compute the ipos[] weight normalisation factors */ + for (e = 0; e < di; e++) { + if (m->g.ipos[e] == NULL) + continue; + dwtw[e] = 0.0; + for (i = 1; i < gres[e]; i++) { + double w; + w = fabs(m->g.ipos[e][i] - m->g.ipos[e][i-1]); +//printf("[%d][%d] w = %f\n",e,i,w); + dwtw[e] += w; + } + dwtw[e] /= (gres[e] - 1.0); /* Average weights */ +//printf("dwtw[%d] = %f\n",e,dwtw[e]); + } + + /* We setup the equation to be solved for each grid point. */ + /* Each grid point participates in foure curvature equations, */ + /* one centered on the grid line below, one that it's the center of, */ + /* one centered on the grid line above, and one centered on the */ + /* grid line two above. The equation setup is for the differential */ + /* for each of these 2nd order curvature equations to be zero. */ + for (i = 0; i < gno; i++) { + double smf = 1.0; + +#ifdef AUTOSM + /* Lookup smoothing factor map */ + if (sm != NULL) { + double p[MXDI]; + double avgdev; + + for (e = 0; e < di; e++) + p[e] = gc[e]/(gres[e] - 1.0); + + avgdev = mgtmp_interp(sm, p); + smf = opt_smooth(s, di, s->d.no, avgdev, f); + } +#endif /* AUTOSM */ + + for (e = 0; e < di; e++) { + double w0, w1, w2, tt; + double cw = smf * 2.0 * m->sf.cw2[e]; /* Overall curvature weight */ +//printf("gno %d dim %d cw %e\n",i,e,cw); + + /* Add influence on Curvature eqation of cell below */ + if ((gc[e]-3) >= 0 && (gc[e]+0) < gres[e]) { + /* double kw = cw * gp[UO_C(e,1)].k; */ /* Cell bellow k value */ + double kw = cw; + w0 = w1 = w2 = 1.0; + if (m->g.ipos[e] != NULL) { + w0 = fabs(m->g.ipos[e][gc[e]-2] - m->g.ipos[e][gc[e]-3]); + w1 = fabs(m->g.ipos[e][gc[e]-1] - m->g.ipos[e][gc[e]-2]); + w2 = fabs(m->g.ipos[e][gc[e]+0] - m->g.ipos[e][gc[e]-1]); + tt = 1.0/3.0 * (w0 + w1 + w2); + w0 = tt/w0; + w1 = tt/w1; + w2 = tt/w2; + } + A[i][ixcol[0]] += w2 * w2 * kw; +//printf("A[%d][%d] = %f\n",i,0,A[i][ixcol[0]]); + } + /* Add influence on Curvature of this cell */ + if ((gc[e]-2) >= 0 && (gc[e]+1) < gres[e]) { + /* double kw = cw * gp->k; */ /* This cells k value */ + double kw = cw; + w0 = w1 = w2 = 1.0; + if (m->g.ipos[e] != NULL) { + w0 = fabs(m->g.ipos[e][gc[e]-1] - m->g.ipos[e][gc[e]-2]); + w1 = fabs(m->g.ipos[e][gc[e]+0] - m->g.ipos[e][gc[e]-1]); + w2 = fabs(m->g.ipos[e][gc[e]+1] - m->g.ipos[e][gc[e]+0]); + tt = 1.0/3.0 * (w0 + w1 + w2); + w0 = tt/w0; + w1 = tt/w1; + w2 = tt/w2; + } + A[i][ixcol[0]] += -(2.0 * w1 + w2) * -(2.0 * w1 + w2) * kw; + A[i][ixcol[gci[e]]] += -(2.0 * w1 + w2) * w2 * kw; +//printf("A[%d][%d] = %f\n",i,0,A[i][ixcol[0]]); +//printf("A[%d][%d] = %f\n",i,1,A[i][ixcol[gci[e]]]); + } + /* Add influence on Curvature of cell above */ + if ((gc[e]-1) >= 0 && (gc[e]+2) < gres[e]) { + /* double kw = cw * gp[UO_C(e,2)].k; */ /* Cell above k value */ + double kw = cw; + w0 = w1 = w2 = 1.0; + if (m->g.ipos[e] != NULL) { + w0 = fabs(m->g.ipos[e][gc[e]+0] - m->g.ipos[e][gc[e]-1]); + w1 = fabs(m->g.ipos[e][gc[e]+1] - m->g.ipos[e][gc[e]+0]); + w2 = fabs(m->g.ipos[e][gc[e]+2] - m->g.ipos[e][gc[e]+1]); + tt = 1.0/3.0 * (w0 + w1 + w2); + w0 = tt/w0; + w1 = tt/w1; + w2 = tt/w2; } - A[i][ixcol[0]] += dw * w0 * w0 * kw; - A[i][ixcol[gci[e]]] += dw * w0 * -(w0 + w1) * kw; - A[i][ixcol[2 * gci[e]]] += dw * w0 * w1 * kw; - if (ccv != NULL) - b[i] += kw * -(w0 + w1) * ccv[i][e]; /* Curvature compensation value */ + A[i][ixcol[0]] += (w0 + 2.0 * w1) * (w0 + 2.0 * w1) * kw; + A[i][ixcol[1 * gci[e]]] += (w0 + 2.0 * w1) * -(2.0 * w1 + w2) * kw; + A[i][ixcol[2 * gci[e]]] += (w0 + 2.0 * w1) * w2 * kw * oawt; +//printf("A[%d][%d] = %f\n",i,0,A[i][ixcol[0]]); +//printf("A[%d][%d] = %f\n",i,1,A[i][ixcol[gci[e]]]); +//printf("A[%d][%d] = %f\n",i,2,A[i][ixcol[2 * gci[e]]]); + } + /* Add influence on Curvature of cell two above */ + if ((gc[e]+0) >= 0 && (gc[e]+3) < gres[e]) { + /* double kw = cw * gp[UO_C(e,3)].k; */ /* Cell two above k value */ + double kw = cw; + w0 = w1 = w2 = 1.0; + if (m->g.ipos[e] != NULL) { + w0 = fabs(m->g.ipos[e][gc[e]+1] - m->g.ipos[e][gc[e]+0]); + w1 = fabs(m->g.ipos[e][gc[e]+2] - m->g.ipos[e][gc[e]+1]); + w2 = fabs(m->g.ipos[e][gc[e]+3] - m->g.ipos[e][gc[e]+2]); + tt = 1.0/3.0 * (w0 + w1 + w2); + w0 = tt/w0; + w1 = tt/w1; + w2 = tt/w2; + } + A[i][ixcol[0]] += -w0 * -w0 * kw; + A[i][ixcol[1 * gci[e]]] += -w0 * (w0 + 2.0 * w1) * kw; + A[i][ixcol[2 * gci[e]]] += -w0 * -(2.0 * w1 + w2) * kw; + A[i][ixcol[3 * gci[e]]] += -w0 * w2 * kw; +//printf("A[%d][%d] = %f\n",i,0,A[i][ixcol[0]]); +//printf("A[%d][%d] = %f\n",i,1,A[i][ixcol[gci[e]]]); +//printf("A[%d][%d] = %f\n",i,2,A[i][ixcol[2 * gci[e]]]); +//printf("A[%d][%d] = %f\n",i,3,A[i][ixcol[3 * gci[e]]]); } } EC_INC(gc); } } +#ifdef DEBUG + printf("After adding 3rd order smoothing:\n"); + for (i = 0; i < gno; i++) { + int *xcol = m->q.xcol; + printf("b[%d] = %f\n",i,b[i]); + for (k = acols-1; k > 0; k--) { + if ((i - xcol[k]) >= 0) + printf("A[%d][-%d] = %f\n",i,k,A[i-xcol[k]][k]); + } + for (k = 0; k < acols && (i + xcol[k]) < gno; k++) + printf("A[%d][%d] = %f\n",i,k,A[i][k]); + printf("\n"); + } +#endif /* DEBUG */ #ifdef DEBUG - printf("After adding curvature equations:\n"); + printf("After adding 2nd and 3rd order smoothing equations:\n"); for (i = 0; i < gno; i++) { printf("b[%d] = %f\n",i,b[i]); for (k = 0; k < acols; k++) { @@ -1642,6 +2214,7 @@ static void setup_solve( printf("\n"); } #endif /* DEBUG */ +#endif /* SMOOTH2 */ nbsum = 0.0; /* Zero sum of b[] squared */ @@ -1649,7 +2222,7 @@ static void setup_solve( /* weak "data point" exactly at each grid point. */ /* (Note we're not currently doing this in a cache friendly order, */ /* and we're calling the function once for each output component..) */ - if (s->dfunc != NULL) { /* Setting this up from scratch */ + if (s->dfunc != NULL && f >= 0) { /* Setting this up from scratch */ double iv[MXDI], ov[MXDO]; ECOUNT(gc, MXDIDO, di, 0, gres, 0); EC_INIT(gc); @@ -1681,7 +2254,6 @@ static void setup_solve( printf("\n"); } #endif /* DEBUG */ - } /* Accumulate data point dependent factors */ @@ -1698,8 +2270,8 @@ static void setup_solve( ai = bp + m->g.hi[j]; /* A matrix index */ w = m->d[n].w[j]; /* Base point grid weight */ - d = 2.0 * s->d.a[n].k[f] * w; /* (2.0, w are derivative factors, k data pnt wgt) */ - tt = d * s->d.a[n].cv[f]; /* Change in (corrected) data component */ + d = 2.0 * s->d.a[n].k[f] * w; /* (2.0, w are derivtv factors, k data pnt wgt) */ + tt = d * s->d.a[n].v[f]; /* Change in data component */ nbsum += (2.0 * b[ai] + tt) * tt; /* += (b[ai] + tt)^2 - b[ai]^2 */ b[ai] += tt; /* New data component value */ @@ -1735,300 +2307,18 @@ static void setup_solve( // exit(0); } +#ifdef AUTOSM -/* Given that we've done a complete fit at the current resolution, */ -/* allocate and compute the curvature error of each grid point and put it in */ -/* s->g.ccv[gno][di] */ -static void comp_ccv( - mgtmp *m /* Solution to use */ -) { - rspl *s = m->s; - int gno = m->g.no, *gres = m->g.res, *gci = m->g.ci; - int di = s->di; - double *x = m->q.x; /* Grid solution values */ - int f = m->f; /* Output dimensions being worked on */ - int e, i; - - ECOUNT(gc, MXDIDO, di, 0, gres, 0); - EC_INIT(gc); - - if (s->g.ccv == NULL) { - if ((s->g.ccv = dmatrixz(0, gno-1, 0, di-1)) == NULL) { - error("Malloc of ccv[] failed with [%d][%d]",di,gno); - } - } - - for (i = 0; i < gno; i++) { - for (e = 0; e < di; e++) { /* For each curvature direction */ - double w0, w1, tt; - - s->g.ccv[i][e] = 0.0; /* Default value */ - - /* If not one from upper or lower edge in this dimension */ - if ((gc[e]-1) >= 0 && (gc[e]+1) < gres[e]) { - /* double kw = cw * gp->k; */ /* This cells k value */ - w0 = w1 = 1.0; - if (m->g.ipos[e] != NULL) { - w0 = fabs(m->g.ipos[e][gc[e]-0] - m->g.ipos[e][gc[e]-1]); - w1 = fabs(m->g.ipos[e][gc[e]+1] - m->g.ipos[e][gc[e]-0]); - tt = sqrt(w0 * w1); - w0 = tt/w0; - w1 = tt/w1; - } - s->g.ccv[i][e] += w0 * x[i - gci[e]]; - s->g.ccv[i][e] += -(w0 + w1) * x[i]; - s->g.ccv[i][e] += w1 * x[i + gci[e]]; - } -//printf("~1 computing ccv for node %d is %f\n",i,s->g.ccv[i][0]); - } - EC_INC(gc); - } -} - -/* Down sample the curvature compensation values in s->g.ccv to */ -/* a given solution. Allocate the m->q.ccv if necessary. */ -static void init_ccv( - mgtmp *m /* Destination */ -) { - rspl *s = m->s; - int f = m->f; /* Output dimensions being worked on */ - int di = s->di; - int gno = m->g.no; - int gres1_1[MXDI]; /* Destination */ - int gres2_1[MXDI]; /* Source */ - double scale[MXDI]; /* ccv scale factor */ - int e, n; - ECOUNT(gc, MXDIDO, di, 0, m->g.res, 0); /* Counter for output points */ - - for (e = 0; e < di; e++) { - gres1_1[e] = m->g.res[e]-1; - gres2_1[e] = s->g.res[e]-1; - } - - if (m->q.ccv == NULL) { - if ((m->q.ccv = dmatrixz(0, gno-1, 0, di-1)) == NULL) { - error("Malloc of ccv[] failed with [%d][%d]",di,gno); - } - } - - /* Compute the scale factor to compensate for the grid resolution */ - /* effect on the grid difference values. */ - for (e = 0; e < di; e++) { - double rsm_s, rsm_d; - - if (s->symdom) { /* Relative final grid size */ - rsm_s = s->g.res[e]; - rsm_d = m->g.res[e]; - } else { /* Relative mean final grid size */ - rsm_s = s->g.mres; - rsm_d = m->g.mres; - } - - rsm_s = pow((rsm_s-1.0), 2.0); /* Geometric resolution factor for smooth surfaces */ - rsm_d = pow((rsm_d-1.0), 2.0); /* (It's ^2 rather than ^4 as it's is before squaring) */ - - scale[e] = rsm_s/rsm_d; - } - - /* Point sampling is probably not the ideal way of down sampling, */ - /* but it's easy, and won't be too bad if the s->g.ccv has been */ - /* low pass filtered. */ - - /* For all grid ccv's */ - EC_INIT(gc); - for (n = 0; n < gno; n++) { - double we[MXRI]; /* 1.0 - Weight in each dimension */ - double gw[POW2MXRI]; /* weight for each grid cube corner */ - int ix; /* Index of source ccv grid cube base */ - - /* Figure out which grid cell the point falls into */ - { - double t; - int mi; - ix = 0; - for (e = 0; e < di; e++) { - t = ((double)gc[e]/(double)gres1_1[e]) * (double)gres2_1[e]; - mi = (int)floor(t); /* Grid coordinate */ - if (mi < 0) /* Limit to valid cube base index range */ - mi = 0; - else if (mi >= gres2_1[e]) - mi = gres2_1[e]-1; - ix += mi * s->g.ci[e]; /* Add Index offset for grid cube base in dimen */ - we[e] = t - (double)mi; /* 1.0 - weight */ - } - } - - /* Compute corner weights needed for interpolation */ - { - int i, g; - gw[0] = 1.0; - for (e = 0, g = 1; e < di; g *= 2, e++) { - for (i = 0; i < g; i++) { - gw[g+i] = gw[i] * we[e]; - gw[i] *= (1.0 - we[e]); - } - } - } - - /* Compute the output values */ - { - int i; - for (e = 0; e < di; e++) - m->q.ccv[n][e] = 0.0; /* Zero output value */ - for (i = 0; i < (1 << di); i++) { /* For all corners of cube */ - int oix = ix + s->g.hi[i]; - for (e = 0; e < di; e++) - m->q.ccv[n][e] += gw[i] * s->g.ccv[oix][e]; - } - /* Rescale curvature for grid spacing */ - for (e = 0; e < di; e++) - m->q.ccv[n][e] *= scale[e]; -//printf("~1 downsampling ccv for node %d is %f\n",n,m->q.ccv[n][0]); - } - EC_INC(gc); - } -} - -/* Apply a gaussian filter to the curvature compensation values */ -/* s->g.ccv[gno][di], to apply smoothing. */ -static void filter_ccv( - rspl *s, - double stdev /* Standard deviation diameter of filter (in input) */ - /* 1.0 = grid width */ -) { - int k, e, ee, i, j, di = s->di; - int gno = s->g.no, *gres = s->g.res, *gci = s->g.ci; - double *_fkern[MXDI], *fkern[MXDI]; /* Filter kernels */ - int kmin[MXDI], kmax[MXDI]; /* Kernel index range (inclusive) */ - double *_row, *row; /* Extended copy of each row processed */ - -//printf("Doing filter stdev %f\n",stdev); - -//printf("~1 bres = %d, index %d to %d\n",s->g.bres,-s->g.bres+1,s->g.bres+s->g.bres-1); - if ((_row = (double *) malloc(sizeof(double) * (s->g.bres * 3 - 2))) == NULL) - error("rspl malloc failed - ccv row copy"); - row = _row + s->g.bres-1; /* Allow +/- gres-1 */ - - /* Compute the kernel weightings for the given stdev */ - for (ee = 0; ee < di; ee++) { /* For each dimension direction */ - int cres; /* Current res */ - double k1, k2, tot; - -//printf("Filter along dim %d:\n",ee); - if ((_fkern[ee] = (double *) malloc(sizeof(double) * (gres[ee] * 2 - 1))) == NULL) - error("rspl malloc failed - ccv filter kernel"); - fkern[ee] = _fkern[ee] + gres[ee]-1; /* node of interest at center */ - - /* Take gaussian constants out of the loop */ - k2 = 1.0 / (2.0 * pow(fabs(stdev), TWOPASSORDER)); - k1 = k2 / 3.1415926; - - /* Comute the range needed */ - if (s->symdom) { - cres = gres[ee]; - } else { - cres = s->g.mres; - } - kmin[ee] = (int)floor(-5.0 * stdev * (cres-1.0)); - kmax[ee] = (int)ceil(5.0 * stdev * (cres-1.0)); - - if (kmin[ee] < (-gres[ee]+1)) - kmin[ee] = -gres[ee]+1; - else if (kmin[ee] > -1) - kmin[ee] = -1; - if (kmax[ee] > (gres[ee]-1)) - kmax[ee] = gres[ee]-1; - else if (kmax[ee] < 1) - kmax[ee] = 1; -//printf("kmin = %d, kmax = %d\n",kmin[ee], kmax[ee]); - - for (tot = 0.0, i = kmin[ee]; i <= kmax[ee]; i++) { - double fi = (double)i; - - /* Do a discrete integration of the gassian function */ - /* to compute discrete weightings */ - fkern[ee][i] = 0.0; - for (k = -4; k < 5; k++) { - double oset = (fi + k/9.0)/(cres-1.0); - double val; - - val = k1 * exp(-k2 * pow(fabs(oset), TWOPASSORDER)); - fkern[ee][i] += val; - tot += val; - } - } - /* Normalize the sum */ - for (tot = 1.0/tot, i = kmin[ee]; i <= kmax[ee]; i++) - fkern[ee][i] *= tot; -//printf("Filter cooefs:\n"); -//for (i = kmin[ee]; i <= kmax[ee]; i++) -//printf("%d: %e\n",i,fkern[ee][i]); - } - - for (k = 0; k < di; k++) { /* For each curvature direction */ - for (ee = 0; ee < di; ee++) { /* For each dimension direction */ - int tgres[MXDI-1]; - -//printf("~1 Filtering curv dir %d, dim dir %d\n",k,ee); - /* Setup counters for scanning through all other dimensions */ - for (j = e = 0; e < di; e++) { - if (e == ee) - continue; - tgres[j++] = gres[e]; - } - /* For each row of this dimension */ - { - ECOUNT(gc, MXDIDO-1, di-1, 0, tgres, 0); /* Count other dimensions */ - - EC_INIT(gc); - for (; di <= 1 || !EC_DONE(gc);) { - int ix; - - /* Compute index of start of row */ - for (ix = j = e = 0; e < di; e++) { - if (e == ee) - continue; - ix += gc[j++] * gci[e]; - } +~~~~9999 - /* Copy row to temporary array, and expand */ - /* edge values by mirroring them. */ - for (i = 0; i < gres[ee]; i++) - row[i] = s->g.ccv[ix + i * gci[ee]][k]; - for (i = kmin[ee]; i < 0; i++) - row[i] = 2.0 * row[0] - row[-i]; /* Mirror the value */ - for (i = gres[ee]-1 + kmax[ee]; i > (gres[ee]-1); i--) - row[i] = 2.0 * row[gres[ee]-1] - row[gres[ee]-1-i]; /* Mirror the value */ -//printf("~1 Row = \n"); -//for (i = kmin[ee]; i <= (gres[ee]-1 + kmax[ee]); i++) -//printf("%d: %f\n",i,row[i]); - - /* Apply the 1D convolution to the temporary array */ - /* to produce the filtered values. */ - for (i = 0; i < gres[ee]; i++) { - double fv; - - for (fv = 0.0, j = kmin[ee]; j <= kmax[ee]; j++) - fv += fkern[ee][j] * row[i + j]; - s->g.ccv[ix + i * gci[ee]][k] = fv; - } - if (di <= 1) - break; - EC_INC(gc); - } - } - } - } +#endif - for (ee = 0; ee < di; ee++) - free(_fkern[ee] ); - free(_row); -} +#ifdef AUTOSM /* Given that we've done a complete fit at the current resolution, */ -/* compute the error of each data point, and then compute */ -/* a correction factor .cv[] for each point from this. */ -static void comp_extrafit_corr( +/* compute the error of each data point. */ +/* This is used to compute a smoothness factor map */ +static void comp_fit_errors( mgtmp *m /* Current resolution mgtmp */ ) { rspl *s = m->s; @@ -2037,6 +2327,7 @@ static void comp_extrafit_corr( int di = s->di; double *x = m->q.x; /* Grid solution values */ int f = m->f; /* Output dimensions being worked on */ + double fea = 0.0; /* Average value */ /* Compute error for each data point */ for (n = 0; n < dno; n++) { @@ -2047,34 +2338,74 @@ static void comp_extrafit_corr( double gain = 1.0; /* Compute the interpolated grid value for this data point */ - for (val = 0.0, j = 0; j < (1 << di); j++) { /* Binary sequence */ + for (val = 0.0, j = 0; j < (1 << di); j++) /* Binary sequence */ val += m->d[n].w[j] * x[bp + m->g.hi[j]]; - } err = s->d.a[n].v[f] - val; + err *= 0.8; +// s->d.a[n].fe = fabs(err); +//printf("~1 data %d fe = %f\n",n,s->d.a[n].fe); + fea += s->d.a[n].fe; + } + fea /= (double)dno; -#ifdef NEVER - /* Compute gain from previous move */ - if (fabs(s->d.a[n].pe[f]) > 0.001) { - gain = (val - s->d.a[n].pv[f])/s->d.a[n].pe[f]; - if (gain < 0.2) - gain = 0.2; - else if (gain > 5.0) - gain = 5.0; - gain = pow(gain, 0.6); - } else { - gain = 1.0; +// s->d.fea = fea; /* Average fit error */ +} + +#endif /* AUTOSM */ + +/* Return an interpolayed value */ +static double mgtmp_interp( + mgtmp *m, + double p[MXDI] /* Input coord in normalised grid forms */ +) { + rspl *s = m->s; + int di = s->di; + int e, n; + double we[MXRI]; /* 1.0 - Weight in each dimension */ + double gw[POW2MXRI]; /* weight for each grid cube corner */ + double *gp; /* Pointer to x2[] grid cube base */ + double val; + + /* Figure out which grid cell the point falls into */ + { + double t; + int mi; + gp = m->q.x; /* Base of solution array */ + for (e = 0; e < di; e++) { + t = (double)p[e] * (m->g.res[e] - 1.0); + mi = (int)floor(t); /* Grid coordinate */ + if (mi < 0) /* Limit to valid cube base index range */ + mi = 0; + else if (mi >= (m->g.res[e] - 1)) + mi = m->g.res[e] - 2; + gp += mi * m->g.ci[e]; /* Add Index offset for grid cube base in dimen */ + we[e] = t - (double)mi; /* 1.0 - weight */ } -#endif - /* Correct the target data point value by the error */ - s->d.a[n].cv[f] += err / gain; - -//printf("~1 Data point %d, v = %f, cv = %f, change = %f\n",n,s->d.a[n].v[f],s->d.a[n].cv[f],-val); -//printf("~1 Data point %d, pe = %f, change = %f, gain = %f\n",n,s->d.a[n].pe[f],val - s->d.a[n].pv[f],gain); -//printf("~1 Data point %d err = %f, target %f, was %f, now %f\n",n,err,s->d.a[n].v[f],val,s->d.a[n].cv[f]); -// s->d.a[n].pe[f] = err / gain; -// s->d.a[n].pv[f] = val; } + + /* Compute corner weights needed for interpolation */ + { + int i, g; + gw[0] = 1.0; + for (e = 0, g = 1; e < di; g *= 2, e++) { + for (i = 0; i < g; i++) { + gw[g+i] = gw[i] * we[e]; + gw[i] *= (1.0 - we[e]); + } + } + } + + /* Compute the output values */ + { + int i; + val = 0.0; /* Zero output value */ + for (i = 0; i < (1 << di); i++) { /* For all corners of cube */ + val += gw[i] * gp[m->g.hi[i]]; + } + } + + return val; } /* Transfer a solution from one mgtmp to another */ @@ -2086,64 +2417,48 @@ static void init_soln( rspl *s = m1->s; int di = s->di; int gno = m1->g.no; - int gres1_1[MXDI]; - int gres2_1[MXDI]; int e, n; ECOUNT(gc, MXDIDO, di, 0, m1->g.res, 0); /* Counter for output points */ - for (e = 0; e < di; e++) { - gres1_1[e] = m1->g.res[e]-1; - gres2_1[e] = m2->g.res[e]-1; - } - /* For all output grid points */ EC_INIT(gc); for (n = 0; n < gno; n++) { - double we[MXRI]; /* 1.0 - Weight in each dimension */ - double gw[POW2MXRI]; /* weight for each grid cube corner */ - double *gp; /* Pointer to x2[] grid cube base */ - - /* Figure out which grid cell the point falls into */ - { - double t; - int mi; - gp = m2->q.x; /* Base of solution array */ - for (e = 0; e < di; e++) { - t = ((double)gc[e]/(double)gres1_1[e]) * (double)gres2_1[e]; - mi = (int)floor(t); /* Grid coordinate */ - if (mi < 0) /* Limit to valid cube base index range */ - mi = 0; - else if (mi >= gres2_1[e]) - mi = gres2_1[e]-1; - gp += mi * m2->g.ci[e]; /* Add Index offset for grid cube base in dimen */ - we[e] = t - (double)mi; /* 1.0 - weight */ - } - } + double p[MXRI]; /* Grid relative location */ - /* Compute corner weights needed for interpolation */ - { - int i, g; - gw[0] = 1.0; - for (e = 0, g = 1; e < di; g *= 2, e++) { - for (i = 0; i < g; i++) { - gw[g+i] = gw[i] * we[e]; - gw[i] *= (1.0 - we[e]); - } - } - } + for (e = 0; e < di; e++) + p[e] = (double)gc[e]/(m1->g.res[e] - 1.0); + + m1->q.x[n] = mgtmp_interp(m2, p); - /* Compute the output values */ - { - int i; - m1->q.x[n] = 0.0; /* Zero output value */ - for (i = 0; i < (1 << di); i++) { /* For all corners of cube */ - m1->q.x[n] += gw[i] * gp[m2->g.hi[i]]; - } - } EC_INC(gc); } } + +#ifdef AUTOSM + +#ifndef NEVER // Debug + +/* Plot the 0'th dimension response */ +void plot_mgtmp1(mgtmp *m) { + int i; + double xx[100]; + double yy[100]; + double p[MXDI]; + + for (i = 0; i < m->s->di; i++) + p[i] = 0.0; + + for (i = 0; i < 100; i++) { + xx[i] = p[0] = (double)i/99.0; + yy[i] = mgtmp_interp(m, p); + } + do_plot(xx, yy, NULL, NULL, 100); +} + +#endif /* NEVER */ +#endif /* AUTOSM */ + /* - - - - - - - - - - - - - - - - - - - -*/ static double one_itter1(cj_arrays *ta, double **A, double *x, double *b, double normb, @@ -2234,7 +2549,7 @@ solve_gres(mgtmp *m, cj_arrays *ta, double tol, int final) /* Note that we process the A[][] sparse columns in compact form */ #ifdef DEBUG_PROGRESS - printf("Target tol = %f\n",tol); + printf("Target tol = %e\n",tol); #endif /* If the number of point is small, or it is just one */ /* dimensional, solve it more directly. */ @@ -2417,7 +2732,7 @@ one_itter2( sm += A[i][k] * x[k3]; /* Left of diagonal in 4's */ - /* (We take advantage of the symetry: what would be in the row */ + /* (We take advantage of A[][] symetry: what would be in the row */ /* to the left is repeated in the column above.) */ for (k = 1, k3 = i-xcol[k+3]; (k+3) < acols && k3 >= 0; k += 4, k3 = i-xcol[k+3]) { k0 = i-xcol[k+0]; @@ -2432,6 +2747,7 @@ one_itter2( for (k3 = i-xcol[k]; k < acols && k3 >= 0; k++, k3 = i-xcol[k]) sm += A[k3][k] * x[k3]; + /* Compute x value that solves equation just for this point */ // x[i] = (b[i] - sm)/A[i][0]; x[i] += ovsh * ((b[i] - sm)/A[i][0] - x[i]); @@ -2627,8 +2943,10 @@ cj_line( sm += A[ii][k] * x[k3]; /* Left of diagonal in 4's */ - /* (We take advantage of the symetry: what would be in the row */ - /* to the left is repeated in the column above.) */ + /* (We take advantage of the symetry around the diagonal: what would be in the row */ + /* to the left is repeated in the column above, so for an unsparse matrix */ + /* we simply swapt the row and column index, for sparse we use the mirror column */ + /* offset (ie. to the right side) and subtract the column offset from the row.) */ for (k = 1, k3 = ii-xcol[k+3]; (k+3) < acols && k3 >= 0; k += 4, k3 = ii-xcol[k+3]) { k0 = ii-xcol[k+0]; k1 = ii-xcol[k+1]; @@ -2682,6 +3000,7 @@ cj_line( max_it = 0; } + /* Improve the solution */ for (it = 1; it <= max_it; it++) { /* Aproximately solve for z[] given r[], */ diff --git a/rspl/smtmpp.c b/rspl/smtmpp.c index ed7bac7..1264d4b 100644 --- a/rspl/smtmpp.c +++ b/rspl/smtmpp.c @@ -28,9 +28,10 @@ #include "rspl.h" #include "numlib.h" #include "xicc.h" -#include "plot.h" #include "rspl_imp.h" #include "counters.h" /* Counter macros */ +#include "plot.h" +#include "ui.h" #ifdef DEBUG #define DBG(xxxx) printf xxxx @@ -67,6 +68,7 @@ refconv *rco, double *out, double *in) { rco->mppo->lookup(rco->mppo, out, in); +//printf("~1 3/4D %f %f %f -> %f %f %f\n", in[0], in[1], in[2], out[0], out[1], out[2]); } /* Do a 1d emulation */ @@ -129,6 +131,8 @@ static int set_refconv( s->di = di; s->ix = ix; + s->lookup = NULL; + if (di == s->pdi) { if (ix == 0) { s->lookup = refconv_default; @@ -185,9 +189,7 @@ static void do_test( int ntps, /* Number of sample points */ double noise, /* Sample point noise volume */ int unif, /* nz for uniform noise, else normal */ - double smooth, /* Smoothness to test */ - int twopass, /* Two pass flag */ - int extra /* Extra fit flag */ + double smooth /* Smoothness to test */ ); /* Compute smoothness of function */ @@ -213,7 +215,7 @@ static double best(int n, double *rmse, double *smv) { int i, bi; rspl *curve; co *tps = NULL; - int ns = 500; /* Number of steps to search */ + int ns = 2000; /* Number of samples */ datai low,high; int gres[1]; datai dlow,dhigh; @@ -248,7 +250,7 @@ static double best(int n, double *rmse, double *smv) { n, /* Number of test points */ NULL, NULL, gres, /* Low, high, resolution of grid */ NULL, NULL, /* Default data scale */ - -0.000005, /* Underlying smoothing */ + -0.0007, /* Underlying smoothing */ avgdev, /* Average deviation */ NULL); /* iwidth */ @@ -262,30 +264,13 @@ static double best(int n, double *rmse, double *smv) { printf("Point %d at %f, should be %f is %f\n",i,log10(smv[i]),rmse[i],tp.v[0]); } - -#define TPRES 100 - /* Plot the result */ - { - double xx[TPRES], yy[TPRES]; - - for (i = 0; i < TPRES; i++) { - co tp; - double vi = i/(TPRES-1.0); - - tp.p[0] = log10(smv[0]) + (log10(smv[n-1]) - log10(smv[0])) * vi; - curve->interp(curve, &tp); - xx[i] = tp.p[0]; - yy[i] = tp.v[0]; - } - do_plot(xx,yy,NULL,NULL,TPRES); - } #endif /* Choose a solution */ - - /* First find the very lowest error */ brmse = 1e38; - for (i = 0; i < ns ; i++) { + + /* Find lowest rms error point */ + for (i = ns-1; i >= 0; i--) { co tp; double vi; @@ -300,15 +285,8 @@ static double best(int n, double *rmse, double *smv) { } } -//printf("~1 located minimum at %f err %f\n",pow(10.0, blsmv), brmse); - - /* Then locate the larger smoothness value that */ - /* gives a slightly higher error. */ - if ((brmse * 1.1) < (brmse + 1.0)) - brmse *= 1.1; /* + 10% */ - else - brmse += 1.0; /* or 1 delta E */ - for (i = bi; i < ns ; i++) { + /* Then increase smoothness until fit error is 1% higher */ + for (i = bi+1; i < ns; i++) { co tp; double vi; @@ -316,23 +294,41 @@ static double best(int n, double *rmse, double *smv) { tp.p[0] = log10(smv[0]) + (log10(smv[n-1]) - log10(smv[0])) * vi; curve->interp(curve, &tp); - if (tp.v[0] >= brmse) { + if (tp.v[0] >= (1.01 * brmse)) { blsmv = tp.p[0]; brmse = tp.v[0]; break; } } -//printf("~1 located minimum + 20%% at %f err %f\n",pow(10.0, blsmv), brmse); - rv = pow(10.0, blsmv); + +#ifdef NEVER + +#define TPRES 100 + /* Plot the result */ + { + double xx[TPRES], yy[TPRES]; + + for (i = 0; i < TPRES; i++) { + co tp; + double vi = i/(TPRES-1.0); + + tp.p[0] = log10(smv[0]) + (log10(smv[n-1]) - log10(smv[0])) * vi; + curve->interp(curve, &tp); + xx[i] = tp.p[0]; + yy[i] = tp.v[0]; + } + printf("Best at %f\n",blsmv); + do_plot(xx,yy,NULL,NULL,TPRES); + } +#endif + return rv; } /* ---------------------------------------------------------------------- */ /* Explore ideal smoothness change with test point number and noise volume */ -static void do_series_1(refconv* rco, int tdi, int unif, int tntps, int tnlev, int twopass, int extra) { - int verb = 0; - int plot = 0; +static void do_series_1(int verb, int plot, refconv* rco, int tdi, int unif, int tntps, int tnlev) { int sdi = 1, edi = 4, di; int res = 0; int ntps = 0; @@ -350,111 +346,118 @@ static void do_series_1(refconv* rco, int tdi, int unif, int tntps, int tnlev, i }; /* Set of smoothnesses to explore */ - double smset[20] = { - -0.0000001, - -0.0000010, - -0.0000050, - -0.0000100, - -0.0000500, - -0.0001000, - -0.0005000, - -0.0010000, - -0.0050000, - -0.0100000, - -0.0500000, - -0.1000000, - -0.5000000, - -1.0000000, - 0 - }; - - /* For 2 pass smoothing */ - double smset2[20] = { - -0.0200000, - -0.0500000, - -0.0800000, - -0.1000000, - -0.1500000, - -0.2000000, - -0.3000000, - -0.4000000, - -0.5000000, - -0.6000000, - -0.7000000, - -0.8000000, - -1.0000000, - 0 + double smset[4][20] = { + { + -0.00000001, + -0.00000010, + -0.00000100, + -0.00001000, + -0.00010000, + -0.00100000, + -0.01000000, + -0.10000000, + -1.00000000, + 0.0 + }, + { + -0.0000001, + -0.0000010, + -0.0000100, + -0.0001000, + -0.0010000, + -0.0100000, + -0.1000000, + -1.0000000, + 0.0 + }, + { + -0.0000001, + -0.0000010, + -0.0000100, + -0.0001000, + -0.0010000, + -0.0100000, + -0.1000000, + -1.0000000, + 0.0 + }, + { + -0.0000010, + -0.0000100, + -0.0001000, + -0.0010000, + -0.0100000, + -0.1000000, + -1.0000000, + -10.000000, + 0.0 + } }; - /* Set of sample points to explore */ int nset[4][20] = { { 5, 10, 20, 50, 100, 200, 0 /* di = 1 */ }, { - 25, 100, 400, 2500, 10000, 40000, 0, /* di = 2 */ + 25, 100, 200, 400, 1000, 2500, 10000, 40000, /* di = 2 */ }, { - 25, 50, 75, 125, 250, 500, 1000, 2000, 8000, 125000, 0, /* di = 3 */ + 10, 25, 75, 125, 250, 500, 1000, 2000, 4000, 8000, 16000, 30000, 100000 /* di = 3 */ }, { - 50, 100, 200, 450, 625, 900, 1800, 3600, 10000, 160000, 1000000, 0, /* di = 4 */ + 100, 200, 450, 625, 900, 1200, 1800, 3600, 10000, 200000, 500000 /* di = 4 */ } }; - /* Set of total noise levels to explore */ /* Set of noise levels to explore (average deviation * 4) */ double noiseset[4][20] = { { 0.0, /* Perfect data */ + 0.005, /* 0.2 % */ 0.01, /* 1.0 % */ 0.02, /* 2.0 % */ 0.05, /* 5.0 % */ 0.10, /* 10.0 % */ - 0.20, /* 20.0 % */ - -1.0, +// 0.20, /* 20.0 % */ + -1.0 }, { 0.0, /* Perfect data */ + 0.005, /* 0.2 % */ 0.01, /* 1.0 % */ 0.02, /* 2.0 % */ 0.05, /* 5.0 % */ 0.10, /* 10.0 % */ - 0.20, /* 20.0 % */ - -1.0, +// 0.20, /* 20.0 % */ + -1.0 }, { 0.0, /* Perfect data */ + 0.005, /* 0.2 % */ 0.01, /* 1.0 % */ 0.02, /* 2.0 % */ 0.05, /* 5.0 % */ 0.10, /* 10.0 % */ - 0.20, /* 20.0 % */ - -1.0, +// 0.20, /* 20.0 % */ + -1.0 }, { 0.0, /* Perfect data */ + 0.005, /* 0.2 % */ 0.01, /* 1.0 % */ 0.02, /* 2.0 % */ - 0.03, /* 3.0 % */ 0.05, /* 5.0 % */ 0.10, /* 10.0 % */ - 0.20, /* 20.0 % */ - -1.0, +// 0.20, /* 20.0 % */ + -1.0 }, }; - printf("Testing underlying smoothness\n"); printf("Profile is '%s'\n",rco->fname); - if (twopass) - printf("Two Pass smoothing\n"); - if (extra) - printf("Extra fitting\n"); - /* For dimensions */ if (tdi != 0) sdi = edi = tdi; @@ -480,7 +483,7 @@ static void do_series_1(refconv* rco, int tdi, int unif, int tntps, int tnlev, i continue; } - printf("No. Sample points %d\n",ntps); + printf("\nNo. Sample points %d\n",ntps); /* For noise levels */ for (j = tnlev; j < 20; j++) { @@ -500,13 +503,13 @@ static void do_series_1(refconv* rco, int tdi, int unif, int tntps, int tnlev, i noise = noiseset[di-1][j]; if (noise < 0.0) break; - printf("Noise volume %f%%\n",noise * 100.0); + printf("\nNoise volume %f%%\n",noise * 100.0); /* For each channel combination within profile */ for (ix = 0; ; ix++) { if (set_refconv(rco, ix, di)) { - DBG(("set_refconv returned nz with ix %f\n",ix)); + DBG(("set_refconv returned nz with ix %f di %d\n",ix,di)); break; } @@ -515,32 +518,29 @@ static void do_series_1(refconv* rco, int tdi, int unif, int tntps, int tnlev, i /* For smooth factors */ for (k = 0; k < 20; k++) { - if (twopass) - smooth = smset2[k]; - else - smooth = smset[k]; + smooth = smset[di-1][k]; if (smooth == 0.0) { DBG(("smooth == 0\n")); break; } - printf("Smooth %9.7f, ",-smooth); fflush(stdout); + printf("Smooth %9.8f, ",-smooth); fflush(stdout); - do_test(rco, &trmse, &tmaxe, &tavge, verb, plot, di, res, ntps, noise, unif, smooth, twopass, extra); + do_test(rco, &trmse, &tmaxe, &tavge, verb, plot, di, res, ntps, noise, + unif, smooth); smv[k] = -smooth; rmse[k] = trmse; maxe[k] = tmaxe; printf("maxerr %f, avgerr %f, rmserr %f\n", tmaxe, tavge, trmse); } -// bfit = best(k, rmse, smv); /* Best or RMS */ - bfit = best(k, maxe, smv); /* Best of max error */ - printf("Best smoothness = %9.7f, log10 = %4.1f\n",bfit,log10(bfit)); + bfit = best(k, rmse, smv); /* Best or RMS */ + printf("Best smoothness = %9.7f, log10 = %4.2f\n",bfit,log10(bfit)); avgbest += log10(bfit); } if (ix > 0) { avgbest /= (double)ix; - printf("Average best smoothness of %d = %9.7f, log10 = %4.1f\n",ix,pow(10.0,avgbest),avgbest); + printf("Average best smoothness of %d = %9.7f, log10 = %4.2f\n",ix,pow(10.0,avgbest),avgbest); } } @@ -550,9 +550,7 @@ static void do_series_1(refconv* rco, int tdi, int unif, int tntps, int tnlev, i } /* Verify the current behaviour with test point number and noise volume */ -static void do_series_2(refconv *rco, int di, int unif, int twopass, int extra) { - int verb = 0; - int plot = 0; +static void do_series_2(int verb, int plot, refconv *rco, int di, int unif) { int res = 0; int ntps = 0; double noise = 0.0; @@ -562,8 +560,8 @@ static void do_series_2(refconv *rco, int di, int unif, int twopass, int extra) /* Number of trials to do for each dimension */ int trials[4] = { - 8, - 8, + 12, + 10, 8, 5 }; @@ -657,7 +655,7 @@ static void do_series_2(refconv *rco, int di, int unif, int twopass, int extra) printf("Smooth %9.7f, ",smooth); fflush(stdout); - do_test(rco, &trmse, &tmaxe, &tavge, verb, plot, di, res, ntps, noise, unif, smooth, twopass, extra); + do_test(rco, &trmse, &tmaxe, &tavge, verb, plot, di, res, ntps, noise, unif, smooth); printf("maxerr %f, avgerr %f, rmserr %f\n", tmaxe, tavge, trmse); } @@ -683,10 +681,9 @@ void usage(void) { fprintf(stderr," -n no Test ""no"" sample points (default 20, 40, 80, 100)\n"); fprintf(stderr," -a amnt Add total level amnt randomness (default 0.0)\n"); fprintf(stderr," -A n Just do the n'th noise level of series\n"); - fprintf(stderr," -2 Use two pass smoothing\n"); - fprintf(stderr," -x Use extra fitting\n"); fprintf(stderr," -s smooth RSPL extra smoothness factor to test (default 1.0)\n"); fprintf(stderr," -g smooth RSPL underlying smoothness factor to test\n"); + fprintf(stderr," -X ix Select input channel for 1/2D emulation, 0..3\n"); fprintf(stderr," profile.mpp MPP profile to use\n"); exit(1); } @@ -701,6 +698,7 @@ int main(int argc, char *argv[]) { int series = 0; int unif = 0; int di = 0; /* Test input dimensions */ + int ix = 0; /* One off test output channel */ int its = 3; /* Smooth test itterations */ int res = -1; int ntps = 0; @@ -708,8 +706,6 @@ int main(int argc, char *argv[]) { int nlev = 0; double smooth = 1.0; double gsmooth = 0.0; - int twopass = 0; - int extra = 0; int smfunc = 0; double trmse, tavge, tmaxe; @@ -737,17 +733,17 @@ int main(int argc, char *argv[]) { if (argv[fa][1] == '?') { usage(); - } else if (argv[fa][1] == 'v' || argv[fa][1] == 'V') { + } else if (argv[fa][1] == 'v') { verb = 1; - } else if (argv[fa][1] == 'p' || argv[fa][1] == 'P') { + } else if (argv[fa][1] == 'p') { plot = 1; - } else if (argv[fa][1] == 'u' || argv[fa][1] == 'U') { + } else if (argv[fa][1] == 'u') { unif = 1; /* Test series */ - } else if (argv[fa][1] == 'z' || argv[fa][1] == 'Z') { + } else if (argv[fa][1] == 'z') { fa = nfa; if (na == NULL) usage(); series = atoi(na); @@ -758,21 +754,21 @@ int main(int argc, char *argv[]) { smfunc = 1; /* Dimension */ - } else if (argv[fa][1] == 'd' || argv[fa][1] == 'D') { + } else if (argv[fa][1] == 'd') { fa = nfa; if (na == NULL) usage(); di = atoi(na); if (di <= 0 || di > 4) usage(); /* Resolution */ - } else if (argv[fa][1] == 'r' || argv[fa][1] == 'R') { + } else if (argv[fa][1] == 'r') { fa = nfa; if (na == NULL) usage(); res = atoi(na); if (res <= 0) usage(); /* Number of sample points */ - } else if (argv[fa][1] == 'n' || argv[fa][1] == 'N') { + } else if (argv[fa][1] == 'n') { fa = nfa; if (na == NULL) usage(); ntps = atoi(na); @@ -792,12 +788,6 @@ int main(int argc, char *argv[]) { nlev = atoi(na); if (noise < 0) usage(); - } else if (argv[fa][1] == '2') { - twopass = 1; - - } else if (argv[fa][1] == 'x' || argv[fa][1] == 'X') { - extra = 1; - /* Extra smooth factor */ } else if (argv[fa][1] == 's') { fa = nfa; @@ -809,9 +799,15 @@ int main(int argc, char *argv[]) { } else if (argv[fa][1] == 'g') { fa = nfa; if (na == NULL) usage(); - smooth = atof(na); + gsmooth = atof(na); if (gsmooth < 0.0) usage(); + /* Output channel */ + } else if (argv[fa][1] == 'X') { + fa = nfa; + if (na == NULL) usage(); + ix = atoi(na); + if (ix < 0 || ix > 3) usage(); } else usage(); @@ -849,9 +845,9 @@ int main(int argc, char *argv[]) { if (series > 0) { if (series == 1) - do_series_1(&rco, di, unif, ntps, nlev, twopass, extra); + do_series_1(verb, plot, &rco, di, unif, ntps, nlev); else if (series == 2) - do_series_2(&rco, di, unif, twopass, extra); + do_series_2(verb, plot, &rco, di, unif); else error("Unknown series %d\n",series); return 0; @@ -895,7 +891,9 @@ int main(int argc, char *argv[]) { } else { if (verb) { + printf("Profile is '%s'\n",rco.fname); printf("Dimensions %d\n",di); + printf("Outpu chan %d\n",ix); printf("RSPL resolution %d\n",res); printf("No. Sample points %d (norm %f)\n",ntps, pow((double)ntps, 1.0/di)); printf("Noise volume total %f, == avg. dev. %f\n",noise, 0.25 * noise); @@ -905,10 +903,16 @@ int main(int argc, char *argv[]) { printf("Extra smooth %f\n",smooth); } + ix = 0; + + if (set_refconv(&rco, ix, di)) { + error("set_refconv returned nz with ix %f\n",ix); + } + if (gsmooth > 0.0) - do_test(&rco, &trmse, &tmaxe, &tavge, verb, plot, di, res, ntps, noise, unif, -gsmooth, twopass, extra); + do_test(&rco, &trmse, &tmaxe, &tavge, verb, plot, di, res, ntps, noise, unif, -gsmooth); else - do_test(&rco, &trmse, &tmaxe, &tavge, verb, plot, di, res, ntps, noise, unif, smooth, twopass, extra); + do_test(&rco, &trmse, &tmaxe, &tavge, verb, plot, di, res, ntps, noise, unif, smooth); printf("Results: maxerr %f, avgerr %f, rmserr %f\n", tmaxe, tavge, trmse); @@ -936,9 +940,7 @@ static void do_test( int ntps, /* Number of sample points */ double noise, /* Sample point noise volume */ int unif, /* nz for uniform noise, else normal */ - double smooth, /* Smoothness to test, +ve for extra, -ve for underlying */ - int twopass, /* Two pass flag */ - int extra /* Extra fit flag */ + double smooth /* Smoothness to test, +ve for extra, -ve for underlying */ ) { sobol *so; /* Sobol sequence generator */ co *tps = NULL; @@ -959,12 +961,6 @@ static void do_test( gres[j] = res; } - if (twopass) - flags |= RSPL_2PASSSMTH; - - if (extra) - flags |= RSPL_EXTRAFIT2; - /* Make repeatable by setting random seed before a test set. */ rand32(0x12345678); @@ -991,6 +987,7 @@ static void do_test( so->next(so, tps[i].p); rco->lookup(rco, out, tps[i].p); + /* Add randomness to the PCS values */ /* 0.25 * converts total volume to average deviation */ for (f = 0; f < 3; f++) { @@ -1009,7 +1006,7 @@ static void do_test( avgdev[2] = 0.25 * noise; /* Fit to scattered data */ - if (verb) printf("Fitting the scattered data\n"); + if (verb) printf("Fitting the scattered data, smooth = %f, avgdev = %f\n",smooth,avgdev[0]); rss->fit_rspl(rss, flags, /* Non-mon and clip flags */ tps, /* Test points */ @@ -1023,13 +1020,13 @@ static void do_test( /* Plot out function values */ if (plot) { int slice; - printf("Black is target, Red is rspl\n"); + printf("L*: Black is target, Red is rspl\n"); + printf("a*: Green is target, Blue is rspl\n"); + printf("b*: Yellow is target, Purple is rspl\n"); for (slice = 0; slice < (di+1); slice++) { co tp; /* Test point */ double x[PLOTRES]; - double ya[PLOTRES]; - double yb[PLOTRES]; - double yc[PLOTRES]; + double yy[6][PLOTRES]; double pp[MXDI], p1[MXDI], p2[MXDI], ss[MXDI]; int n = PLOTRES; @@ -1060,7 +1057,9 @@ static void do_test( /* Reference */ rco->lookup(rco, out, pp); - ya[i] = 0.01 * out[0]; + yy[0][i] = out[0]; + yy[2][i] = out[1]; + yy[4][i] = out[2]; /* RSPL aproximation */ for (j = 0; j < di; j++) @@ -1068,19 +1067,20 @@ static void do_test( if (rss->interp(rss, &tp)) tp.v[0] = -0.1; - yb[i] = tp.v[0]; - - /* Crude way of setting the scale: */ - yc[i] = 0.0; - if (i == (n-1)) - yc[0] = 1.0; + yy[1][i] = tp.v[0]; + yy[3][i] = tp.v[1]; + yy[5][i] = tp.v[2]; + /* Increment point */ for (j = 0; j < di; j++) pp[j] += ss[j]; } /* Plot the result */ - do_plot(x,ya,yb,yc,n); + do_plot6(x,yy[0],yy[1],yy[2],yy[3],yy[4],yy[5],n); +// do_plot(x,yy[0],yy[1],NULL,n); +// do_plot(x,yy[2],yy[3],NULL,n); +// do_plot(x,yy[4],yy[5],NULL,n); } } @@ -1091,7 +1091,7 @@ static void do_test( // so->reset(so); - /* Fit to scattered data */ + /* Check fit to scattered data */ if (verb) printf("Fitting the scattered data\n"); for (i = 0; i < 100000; i++) { // for (i = 0; i < 100; i++) { @@ -1108,9 +1108,10 @@ static void do_test( /* RSPL aproximation */ rss->interp(rss, &tp); -//printf("~1 point %f %f %f -> ref %f %f %f, test %f %f %f\n", tp.p[0], tp.p[1], tp.p[2], out[0], out[1], out[2], tp.v[0], tp.v[1], tp.v[2]); - err = icmLabDE(out, tp.v); + +//printf("~1 %f: point %f %f %f -> ref %f %f %f, test %f %f %f\n", err, tp.p[0], tp.p[1], tp.p[2], out[0], out[1], out[2], tp.v[0], tp.v[1], tp.v[2]); + avge += err; rmse += err * err; if (err > maxe) diff --git a/rspl/smtnd.c b/rspl/smtnd.c index cdef0a2..f105429 100644 --- a/rspl/smtnd.c +++ b/rspl/smtnd.c @@ -26,12 +26,12 @@ #include "rspl.h" #include "numlib.h" #include "xicc.h" /* For mpp support */ -#include "plot.h" #include "rspl_imp.h" #include "counters.h" /* Counter macros */ +#include "plot.h" +#include "ui.h" -/* rspl flags */ -#define MXCHPARAMS 8 +#define MXCHPARAMS 10 /* Input channel curve parameters */ #define PLOTRES 256 @@ -48,14 +48,15 @@ typedef struct { /* Setup a random function in the given dimensions */ static void setup_func(funcp *p, int di) { double mn,mx; + double ax[MXDI][2]; int i, j; p->di = di; - /* Setup random input parameters */ + /* Setup random input curve parameters */ /* (This is the one that effects smoothness of function the most) */ for (j = 0; j < di; j++) { - for (mx = 3.0, i = 0; i < MXCHPARAMS; i++, mx *= 0.6) { + for (mx = 4.0, i = 0; i < MXCHPARAMS; i++, mx *= 0.6) { p->ip[j][i] = d_rand(-mx, mx); } } @@ -63,15 +64,32 @@ static void setup_func(funcp *p, int di) { /* Setup random shape parameters */ for (j = 0; j < di; j++) { for (i = 0; i < (1 << di); i++) { /* Initially random */ - p->shape[j][i] = d_rand(-1.0, 1.0); + p->shape[j][i] = d_rand(-0.1, 0.1); } } - /* Setup the random output parameters */ - mn = 2.0; - mx = -1.0; + /* Setup the random output value parameters */ + + /* First some axis dominant values */ + for (i = 0; i < di; i++) { + ax[i][0] = d_rand(0.0, 1.0); + ax[i][1] = ax[i][0] + d_rand(-1.0, 1.0); + } + + /* Sum them orthogonally and add indepent terms */ + mn = 5.0; + mx = -5.0; for (i = 0; i < (1 << di); i++) { /* Initially random */ - p->op[i] = d_rand(0.0, 1.0); + p->op[i] = 0.0; + + for (j = 0; j < di; j++) { + if ((1 << j) & i) + p->op[i] += ax[j][1]; + else + p->op[i] += ax[j][0]; + } + p->op[i] += d_rand(-0.3, 0.3); + if (p->op[i] < mn) mn = p->op[i]; if (p->op[i] > mx) @@ -100,7 +118,7 @@ static double lookup_func(funcp *p, double *v) { for (m = 0; m < di; m++) ww[m] = 0.0; - /* Lookup the shape values */ + /* Interpolate the shape values */ for (k = 0; k < (1 << di); k++) { /* For each interp vertex */ double vv; for (vv = 1.0, m = 0; m < di; m++) { /* Compute weighting */ @@ -156,8 +174,8 @@ static void do_test( double noise, /* Sample point noise volume */ int unif, /* NZ if uniform rather than standard deistribution noise */ double smooth, /* Smoothness to test */ - int twopass, /* Two pass flag */ - int extra /* Extra fit flag */ + int autosm, /* Use auto smoothing */ + int seed /* Random seed value offset */ ); /* Compute smoothness of function */ @@ -176,10 +194,10 @@ static double do_stest( /* Return the optimal smoothness value, based on the */ /* minimum RMS value. */ static double best(int n, double *rmse, double *smv) { - int i; + int i, bi; rspl *curve; co *tps = NULL; - int ns = 500; /* Number of samples */ + int ns = 2000; /* Number of samples */ datai low,high; int gres[1]; datai dlow,dhigh; @@ -214,7 +232,7 @@ static double best(int n, double *rmse, double *smv) { n, /* Number of test points */ NULL, NULL, gres, /* Low, high, resolution of grid */ NULL, NULL, /* Default data scale */ - -0.00001, /* Underlying smoothing */ + -0.0007, /* Underlying smoothing */ avgdev, /* Average deviation */ NULL); /* iwidth */ @@ -228,6 +246,45 @@ static double best(int n, double *rmse, double *smv) { printf("Point %d at %f, should be %f is %f\n",i,log10(smv[i]),rmse[i],tp.v[0]); } +#endif + + /* Choose a solution */ + brmse = 1e38; + + /* Find lowest rms error point */ + for (i = ns-1; i >= 0; i--) { + co tp; + double vi; + + vi = i/(ns-1.0); + tp.p[0] = log10(smv[0]) + (log10(smv[n-1]) - log10(smv[0])) * vi; + curve->interp(curve, &tp); + + if (tp.v[0] < brmse) { + blsmv = tp.p[0]; + brmse = tp.v[0]; + bi = i; + } + } + + /* Then increase smoothness until fit error is 1% higher */ + for (i = bi+1; i < ns; i++) { + co tp; + double vi; + + vi = i/(ns-1.0); + tp.p[0] = log10(smv[0]) + (log10(smv[n-1]) - log10(smv[0])) * vi; + curve->interp(curve, &tp); + + if (tp.v[0] >= (1.01 * brmse)) { + blsmv = tp.p[0]; + brmse = tp.v[0]; + break; + } + } + rv = pow(10.0, blsmv); + +#ifdef NEVER #define TPRES 100 /* Plot the result */ @@ -243,27 +300,11 @@ static double best(int n, double *rmse, double *smv) { xx[i] = tp.p[0]; yy[i] = tp.v[0]; } + printf("Best at %f\n",blsmv); do_plot(xx,yy,NULL,NULL,TPRES); } #endif - /* Choose a solution */ - brmse = 1e38; - for (i = 0; i < ns ; i++) { - co tp; - double vi; - - vi = i/(ns-1.0); - tp.p[0] = log10(smv[0]) + (log10(smv[n-1]) - log10(smv[0])) * vi; - curve->interp(curve, &tp); - - if (tp.v[0] < brmse) { - blsmv = tp.p[0]; - brmse = tp.v[0]; - } - } - - rv = pow(10.0, blsmv); return rv; } @@ -274,7 +315,7 @@ static double best(int n, double *rmse, double *smv) { /* If tdi != 0, just do the given dimension */ /* If tntps != 0, just do the given number of points */ /* If tnlev != 0, just do the given noise level */ -static void do_series_1(int unif, int tdi, int tntps, int tnlev, int twopass, int extra) { +static void do_series_1(int unif, int tdi, int tntps, int tnlev, int autosm, int seed) { int verb = 0; int plot = 0; int sdi = 1, edi = 4, di; @@ -288,10 +329,10 @@ static void do_series_1(int unif, int tdi, int tntps, int tnlev, int twopass, in /* Number of trials to do for each dimension */ int trials[4] = { + 12, + 10, 8, - 6, - 4, - 3 + 5 }; /* Resolution of grid for each dimension */ @@ -302,79 +343,52 @@ static void do_series_1(int unif, int tdi, int tntps, int tnlev, int twopass, in { 33, 17, 9, 5 } }; +#ifndef NEVER /* Set of sample points to explore */ int nset[4][20] = { { - 5, 10, 20, 50, 100, 200, /* di = 1 */ + 5, 10, 20, 50, 100, 200, 400, 800 /* di = 1 */ }, { - 25, 100, 400, 2500, 10000, 40000, /* di = 2 */ + 10, 25, 50, 100, 200, 400, 1000, 2500, 10000, 40000 /* di = 2 */ }, { - 25, 50, 75, 125, 250, 500, 1000, 2000, 8000, 125000, /* di = 3 */ + 10, 25, 75, 125, 250, 500, 1000, 2000, 4000, 8000, 16000, 30000, 100000 /* di = 3 */ }, { - 50, 100, 200, 450, 625, 900, 1800, 3600, 10000, 160000, 1000000, /* di = 4 */ + 100, 200, 450, 625, 900, 1200, 1800, 3600, 10000, 200000, 500000 /* di = 4 */ } }; - - /* Set of smoothnesses to explore */ - double smset[4][20] = { +#else + /* Set of sample points to explore */ + int nset[4][20] = { { - -0.0000001, - -0.0000010, - -0.0000100, - -0.0001000, - -0.0010000, - -0.0100000, - -0.1000000, - -1.0000000, - 0.0 + 20, 50, 100, 200 /* di = 1 */ }, { - -0.0000001, - -0.0000010, - -0.0000100, - -0.0001000, - -0.0010000, - -0.0100000, - -0.1000000, - -1.0000000, - 0.0 + 100, 400, 2500, 10000 /* di = 2 */ }, { - -0.0000010, - -0.0000100, - -0.0001000, - -0.0010000, - -0.0100000, - -0.1000000, - -1.0000000, - 0.0 + 500, 1000, 2000, 8000 /* di = 3 */ }, { - -0.0000100, - -0.0001000, - -0.0010000, - -0.0100000, - -0.1000000, - -1.0000000, - -10.000000, - 0.0 + 50, 900, 1800, 3600, 10000 /* di = 4 */ } }; - - /* Set of smoothnesses for twopass smoothing */ - double smset2[4][20] = { +#endif + + /* Set of smoothnesses to explore */ + double smset[4][20] = { { - -0.0000001, - -0.0000010, - -0.0000100, - -0.0001000, - -0.0010000, - -0.0100000, - -0.1000000, - -1.0000000, + -0.00000001, + -0.00000010, + -0.00000100, + -0.00001000, + -0.00010000, + -0.00100000, + -0.01000000, + -0.10000000, + -1.00000000, 0.0 }, { @@ -410,53 +424,79 @@ static void do_series_1(int unif, int tdi, int tntps, int tnlev, int twopass, in } }; +#ifndef NEVER /* Set of noise levels to explore (average deviation * 4) */ double noiseset[4][20] = { { 0.0, /* Perfect data */ + 0.005, /* 0.5 % */ 0.01, /* 1.0 % */ 0.02, /* 2.0 % */ 0.05, /* 5.0 % */ 0.10, /* 10.0 % */ - 0.20, /* 20.0 % */ - -1.0, +// 0.20, /* 20.0 % */ + -1.0 }, { 0.0, /* Perfect data */ + 0.005, /* 0.5 % */ 0.01, /* 1.0 % */ 0.02, /* 2.0 % */ 0.05, /* 5.0 % */ 0.10, /* 10.0 % */ - 0.20, /* 20.0 % */ - -1.0, +// 0.20, /* 20.0 % */ + -1.0 }, { 0.0, /* Perfect data */ + 0.005, /* 0.5 % */ 0.01, /* 1.0 % */ 0.02, /* 2.0 % */ 0.05, /* 5.0 % */ 0.10, /* 10.0 % */ - 0.20, /* 20.0 % */ - -1.0, +// 0.20, /* 20.0 % */ + -1.0 }, { 0.0, /* Perfect data */ + 0.005, /* 0.5 % */ 0.01, /* 1.0 % */ 0.02, /* 2.0 % */ - 0.03, /* 3.0 % */ 0.05, /* 5.0 % */ 0.10, /* 10.0 % */ - 0.20, /* 20.0 % */ - -1.0, +// 0.20, /* 20.0 % */ + -1.0 }, }; +#else + + /* Set of noise levels to explore (average deviation * 4) */ + double noiseset[4][20] = { + { + -1.0 + }, + { + -1.0 + }, + { + -1.0 + }, + { + 0.0, /* Perfect data */ + 0.005, /* 0.2 % */ + 0.01, /* 1.0 % */ + 0.02, /* 2.0 % */ + 0.05, /* 5.0 % */ + 0.10, /* 10.0 % */ +// 0.20, /* 20.0 % */ + -1.0 + }, + }; +#endif + printf("Testing effect of underlying smoothness factors\n"); - if (twopass) - printf("Two Pass smoothing\n"); - if (extra) - printf("Extra fitting\n"); /* For dimensions */ if (tdi != 0) @@ -472,50 +512,47 @@ static void do_series_1(int unif, int tdi, int tntps, int tnlev, int twopass, in printf("Dimensions %d\n",di); printf("RSPL resolution %d\n",res); - /* For noise levels */ - for (j = tnlev; j < 20; j++) { // All noise levels - double smv[20]; - double rmse[20]; - double bfit; + /* For number of sample points */ + for (i = 0; i < 20; i++) { // All test points + int rpts; + ntps = nset[di-1][i]; - if (tnlev != 0 && j != tnlev) + if (ntps == 0) break; - noise = noiseset[di-1][j]; - if (noise < 0.0) - break; - printf("\nNoise volume %f%%, average deviation %f%%\n",noise * 100.0, noise * 25.0); + if (tntps != 0 && ntps != tntps) /* Skip any not requested */ + continue; + + /* Make sure at least 100 points are tested */ + rpts = 1 + 100/ntps; + if (rpts > 5) + rpts = 5; + + printf("\nNo. Sample points %d, norm %8.2f, total its %d\n",ntps, pow((double)ntps, 1.0/di),its * rpts); - /* For number of sample points */ - for (i = 0; i < 20; i++) { // All test points - int rpts; - ntps = nset[di-1][i]; + /* For noise levels */ + for (j = tnlev; j < 20; j++) { // All noise levels + double smv[20]; + double rmse[20]; + double bfit; - if (ntps == 0) + if (tnlev != 0 && j != tnlev) break; - if (tntps != 0 && ntps != tntps) /* Skip any not requested */ - continue; - - /* Make sure at least 100 points are tested */ - rpts = 1 + 100/ntps; - if (rpts > 5) - rpts = 5; - - printf("\nNo. Sample points %d, norm %8.2f, total its %d\n",ntps, pow((double)ntps, 1.0/di),its * rpts); + noise = noiseset[di-1][j]; + if (noise < 0.0) + break; + printf("\nNoise volume %f%%, average deviation %f%% Log ADev %f\n",noise * 100.0, noise * 25.0, noise > 0.0 ? log10(0.25 * noise) : -9.0); /* For smooth factors */ for (k = 0; k < 20; k++) { // All smoothing levels - if (twopass) - smooth = smset2[di-1][k]; - else - smooth = smset[di-1][k]; + smooth = smset[di-1][k]; if (smooth == 0.0) break; printf("Underlying smooth %9.7f, ",-smooth); fflush(stdout); - do_test(&trmse, &tmaxe, &tavge, verb, plot, di, its * rpts, res, ntps, noise, unif,smooth, twopass, extra); + do_test(&trmse, &tmaxe, &tavge, verb, plot, di, its * rpts, res, ntps, noise, unif, smooth, autosm, seed); smv[k] = -smooth; rmse[k] = trmse; printf("maxerr %f%%, avgerr %f%%, rmserr %f%%\n", @@ -523,7 +560,7 @@ static void do_series_1(int unif, int tdi, int tntps, int tnlev, int twopass, in } bfit = best(k, rmse, smv); - printf("Best smoothness = %9.7f, log10 = %4.1f\n",bfit,log10(bfit)); + printf("Best smoothness = %9.7f, log10 = %4.2f\n",bfit,log10(bfit)); } } } @@ -532,7 +569,7 @@ static void do_series_1(int unif, int tdi, int tntps, int tnlev, int twopass, in } /* Explore performance of "optimised" smoothness over test point number and noise volume */ -static void do_series_2(int unif, int twopass, int extra) { +static void do_series_2(int unif, int autosm, int seed) { int verb = 0; int plot = 0; int di = 0; @@ -643,7 +680,7 @@ static void do_series_2(int unif, int twopass, int extra) { double bfit; noise = noiseset[j]; - printf("Noise volume %f%%, average deviation %f%%\n",noise * 100.0, noise * 25.0); + printf("Noise volume %f%%, average deviation %f%% Log ADev %f\n",noise * 100.0, noise * 25.0, noise > 0.0 ? log10(0.25 * noise) : -9.0); /* For smooth factors */ for (k = 0; k < 5; k++) { @@ -651,14 +688,14 @@ static void do_series_2(int unif, int twopass, int extra) { printf("Extra smooth %f, ",smooth); fflush(stdout); - do_test(&trmse, &tmaxe, &tavge, verb, plot, di, its, res, ntps, noise, unif, smooth, twopass, extra); + do_test(&trmse, &tmaxe, &tavge, verb, plot, di, its, res, ntps, noise, unif, smooth, autosm, seed); rmse[k] = trmse; printf("maxerr %f%%, avgerr %f%%, rmserr %f%%\n", tmaxe * 100.0, tavge * 100.0, trmse * 100.0); } bfit = best(5, rmse, smset); - printf("Best smoothness = %9.7f, log10 = %4.1f\n",bfit,log10(bfit)); + printf("Best smoothness = %9.7f, log10 = %4.2f\n",bfit,log10(bfit)); } } printf("\n"); @@ -676,17 +713,17 @@ void usage(void) { fprintf(stderr," 1 = Underlying smoothness\n"); fprintf(stderr," 2 = Verify optimised smoothness\n"); fprintf(stderr," -S Compute smoothness factor instead\n"); - fprintf(stderr," -u Use uniformly distributed noise\n"); - fprintf(stderr," -d n Test ""d"" dimension, 1-4 (default 1)\n"); + fprintf(stderr," -u Use uniformly distributed noise rather than normal\n"); + fprintf(stderr," -d n Test ""d"" dimension only, 1-4 (default 1)\n"); fprintf(stderr," -t n Test ""n"" random functions (default 1)\n"); fprintf(stderr," -r res Rspl resolution (defaults 129, 65, 33, 17)\n"); fprintf(stderr," -n no Test ""no"" sample points (default 20, 40, 80, 100)\n"); fprintf(stderr," -a amnt Add total randomness to function value (default 0.0)\n"); fprintf(stderr," -A n Just do the n'th noise level of series\n"); - fprintf(stderr," -2 Use two pass smoothing\n"); - fprintf(stderr," -x Use extra fitting\n"); fprintf(stderr," -s smooth RSPL extra smoothness factor to test (default 1.0)\n"); fprintf(stderr," -g smooth RSPL underlying smoothness factor to test\n"); + fprintf(stderr," -x Use auto smoothing\n"); + fprintf(stderr," -Z seed Random seed value\n"); exit(1); } @@ -695,7 +732,7 @@ int main(int argc, char *argv[]) { int verb = 0; int plot = 0; int series = 0; - int unif = 0; + int unif = 0; /* default normal noise distribution */ int di = 0; int its = 1; int res = -1; @@ -704,10 +741,10 @@ int main(int argc, char *argv[]) { int nlev = 0; double smooth = 1.0; double gsmooth = 0.0; - int twopass = 0; - int extra = 0; + int autosm = 0; int smfunc = 0; double trmse, tavge, tmaxe; + int seed = 0; error_program = "smtnd"; @@ -747,17 +784,17 @@ int main(int argc, char *argv[]) { if (argv[fa][1] == '?') { usage(); - } else if (argv[fa][1] == 'v' || argv[fa][1] == 'V') { + } else if (argv[fa][1] == 'v' ) { verb = 1; - } else if (argv[fa][1] == 'p' || argv[fa][1] == 'P') { + } else if (argv[fa][1] == 'p') { plot = 1; - } else if (argv[fa][1] == 'u' || argv[fa][1] == 'U') { + } else if (argv[fa][1] == 'u') { unif = 1; /* Test series */ - } else if (argv[fa][1] == 'z' || argv[fa][1] == 'Z') { + } else if (argv[fa][1] == 'z') { fa = nfa; if (na == NULL) usage(); series = atoi(na); @@ -768,29 +805,28 @@ int main(int argc, char *argv[]) { smfunc = 1; /* Dimension */ - } else if (argv[fa][1] == 'd' || argv[fa][1] == 'D') { + } else if (argv[fa][1] == 'd') { fa = nfa; if (na == NULL) usage(); di = atoi(na); if (di <= 0 || di > 4) usage(); -printf("~1 Got -d %s = %d\n",na,di); /* Number of tests */ - } else if (argv[fa][1] == 't' || argv[fa][1] == 'T') { + } else if (argv[fa][1] == 't') { fa = nfa; if (na == NULL) usage(); its = atoi(na); if (its <= 0) usage(); /* Resolution */ - } else if (argv[fa][1] == 'r' || argv[fa][1] == 'R') { + } else if (argv[fa][1] == 'r') { fa = nfa; if (na == NULL) usage(); res = atoi(na); if (res <= 0) usage(); /* Number of sample points */ - } else if (argv[fa][1] == 'n' || argv[fa][1] == 'N') { + } else if (argv[fa][1] == 'n') { fa = nfa; if (na == NULL) usage(); ntps = atoi(na); @@ -810,12 +846,6 @@ printf("~1 Got -d %s = %d\n",na,di); nlev = atoi(na); if (noise < 0) usage(); - } else if (argv[fa][1] == '2') { - twopass = 1; - - } else if (argv[fa][1] == 'x' || argv[fa][1] == 'X') { - extra = 1; - /* Extra smooth factor */ } else if (argv[fa][1] == 's') { fa = nfa; @@ -827,9 +857,18 @@ printf("~1 Got -d %s = %d\n",na,di); } else if (argv[fa][1] == 'g') { fa = nfa; if (na == NULL) usage(); - smooth = atof(na); + gsmooth = atof(na); if (gsmooth < 0.0) usage(); + } else if (argv[fa][1] == 'x') { + autosm = 1; + + /* Random seed offset */ + } else if (argv[fa][1] == 'Z') { + fa = nfa; + if (na == NULL) usage(); + seed = atoi(na); + } else usage(); } else @@ -838,9 +877,9 @@ printf("~1 Got -d %s = %d\n",na,di); if (series > 0) { if (series == 1) - do_series_1(unif, di, ntps, nlev, twopass, extra); + do_series_1(unif, di, ntps, nlev, autosm, seed); else if (series == 2) - do_series_2(unif, twopass, extra); + do_series_2(unif, autosm, seed); else error("Unknown series %d\n",series); return 0; @@ -899,9 +938,9 @@ printf("~1 Got -d %s = %d\n",na,di); } if (gsmooth > 0.0) - do_test(&trmse, &tmaxe, &tavge, verb, plot, di, its, res, ntps, noise, unif, -gsmooth, twopass, extra); + do_test(&trmse, &tmaxe, &tavge, verb, plot, di, its, res, ntps, noise, unif, -gsmooth, autosm, seed); else - do_test(&trmse, &tmaxe, &tavge, verb, plot, di, its, res, ntps, noise, unif, smooth, twopass, extra); + do_test(&trmse, &tmaxe, &tavge, verb, plot, di, its, res, ntps, noise, unif, smooth, autosm, seed); printf("Results: maxerr %f%%, avgerr %f%%, rmserr %f%%\n", tmaxe * 100.0, tavge * 100.0, trmse * 100.0); @@ -924,8 +963,8 @@ static void do_test( double noise, /* Sample point noise volume (total = 4 x average deviation) */ int unif, /* NZ if uniform rather than standard deistribution noise */ double smooth, /* Smoothness to test, +ve for extra, -ve for underlying */ - int twopass, /* Two pass flag */ - int extra /* Extra fit flag */ + int autosm, /* Use auto smoothing */ + int seed /* Random seed value offset */ ) { funcp fp; /* Function parameters */ sobol *so; /* Sobol sequence generator */ @@ -937,6 +976,9 @@ static void do_test( int i, j, it; int flags = RSPL_NOFLAGS; + if (autosm) + flags |= RSPL_AUTOSMOOTH; + *trmse = 0.0; *tmaxe = 0.0; *tavge = 0.0; @@ -947,20 +989,15 @@ static void do_test( gres[j] = res; } - if (twopass) - flags |= RSPL_2PASSSMTH; - - if (extra) - flags |= RSPL_EXTRAFIT2; - if ((so = new_sobol(di)) == NULL) error("Creating sobol sequence generator failed"); for (it = 0; it < its; it++) { double rmse, avge, maxe; + double tnoise = 0.0; /* Make repeatable by setting random seed before a test set. */ - rand32(0x12345678 + 0x1000 * it); + rand32(0x12345678 + seed + 0x1000 * it); /* New function */ setup_func(&fp, di); @@ -977,16 +1014,24 @@ static void do_test( if (verb) printf("Generating the sample points\n"); for (i = 0; i < ntps; i++) { + double out, n; so->next(so, tps[i].p); - tps[i].v[0] = lookup_func(&fp, tps[i].p); + out = lookup_func(&fp, tps[i].p); if (unif) - tps[i].v[0] += d_rand(-0.5 * noise, 0.5 * noise); + n = d_rand(-0.5 * noise, 0.5 * noise); else - tps[i].v[0] += noise * 0.25 * 1.2533 * norm_rand(); + n = noise * 0.25 * 1.2533 * norm_rand(); + + tps[i].v[0] = out + n; +//printf("~1 data %d: %f %f %f -> %f, inc noise %f\n", i, tps[i].p[0], tps[i].p[1], tps[i].p[2], out, tps[i].v[0]); + + tnoise += fabs(n); } + tnoise /= (double) ntps; + if (verb) printf("Measured noise average deviation = %f%%\n",tnoise * 100.0); /* Fit to scattered data */ - if (verb) printf("Fitting the scattered data\n"); + if (verb) printf("Fitting the scattered data, smooth = %f, avgdev = %f\n",smooth,avgdev != NULL ? avgdev[0] : 0.0); avgdev[0] = 0.25 * noise; rss->fit_rspl(rss, flags, /* Non-mon and clip flags */ @@ -1026,6 +1071,7 @@ static void do_test( printf("Slice along diagonal\n"); } + /* Start point and step increment */ for (j = 0; j < di; j++) { ss[j] = (p2[j] - p1[j])/n; pp[j] = p1[j]; diff --git a/rspl/t2d.c b/rspl/t2d.c index b1167ef..e3f304c 100644 --- a/rspl/t2d.c +++ b/rspl/t2d.c @@ -22,6 +22,7 @@ #include "rspl.h" #include "tiffio.h" #include "plot.h" +#include "ui.h" #ifdef NEVER @@ -452,8 +453,7 @@ void usage(void) { fprintf(stderr," -r resx,resy Set grid resolutions (def %d %d)\n",GRES0,GRES1); fprintf(stderr," -h Test half scale resolution too\n"); fprintf(stderr," -q Test quarter scale resolution too\n"); - fprintf(stderr," -2 Use two pass smoothing\n"); - fprintf(stderr," -x Use extra fitting\n"); + fprintf(stderr," -x Use auto smoothing\n"); fprintf(stderr," -s Test symetric smoothness (set asymetric -r !)\n"); fprintf(stderr," -S Test spline interpolation\n"); fprintf(stderr," -p plot 3 slices, x = 0.5, y = 0.5, x = y\n"); @@ -473,8 +473,7 @@ int main(int argc, char *argv[]) { co *test_points = test_points1; int npoints = sizeof(test_points1)/sizeof(co); int dospline = 0; - int twopass = 0; - int extra = 0; + int autosm = 0; int dosym = 0; int doplot = 0; double plotpts[2][2]; /* doplot == 2 start/end points */ @@ -613,11 +612,8 @@ int main(int argc, char *argv[]) { } else if (argv[fa][1] == 'S') { dospline = 1; - } else if (argv[fa][1] == '2') { - twopass = 1; - - } else if (argv[fa][1] == 'x' || argv[fa][1] == 'X') { - extra = 1; + } else if (argv[fa][1] == 'x') { + autosm = 1; } else if (argv[fa][1] == 's') { dosym = 1; @@ -632,11 +628,8 @@ int main(int argc, char *argv[]) { } - if (twopass) - flags |= RSPL_2PASSSMTH; - - if (extra) - flags |= RSPL_EXTRAFIT2; + if (autosm) + flags |= RSPL_AUTOSMOOTH; if (dosym) flags |= RSPL_SYMDOMAIN; diff --git a/rspl/t2ddf.c b/rspl/t2ddf.c index 92e7e3f..115d5f5 100644 --- a/rspl/t2ddf.c +++ b/rspl/t2ddf.c @@ -22,6 +22,7 @@ #include "rspl.h" #include "tiffio.h" #include "plot.h" +#include "ui.h" #ifdef NEVER #define INTERP spline_interp diff --git a/rspl/t3d.c b/rspl/t3d.c index 1935545..c526669 100644 --- a/rspl/t3d.c +++ b/rspl/t3d.c @@ -22,6 +22,7 @@ #include "rspl.h" #include "tiffio.h" #include "plot.h" +#include "ui.h" #ifdef NEVER #define INTERP spline_interp @@ -357,8 +358,7 @@ void usage(void) { fprintf(stderr," -r resx,resy,resz Set grid resolutions (def %d %d %d)\n",GRES0,GRES1,GRES2); fprintf(stderr," -h Test half scale resolution too\n"); fprintf(stderr," -q Test quarter scale resolution too\n"); - fprintf(stderr," -2 Use two pass smoothing\n"); - fprintf(stderr," -x Use extra fitting\n"); + fprintf(stderr," -x Use auto smoothing\n"); fprintf(stderr," -s Test symetric smoothness\n"); fprintf(stderr," -p plot 4 slices, xy = 0.5, yz = 0.5, xz = 0.5, x=y=z\n"); fprintf(stderr," -P x1:y1:z1:x2:y2:z2 plot slice from x1,y1,z1,x2,y2,z2\n"); @@ -377,8 +377,7 @@ int main(int argc, char *argv[]) { co *test_points = test_points1; int npoints = sizeof(test_points1)/sizeof(co); int dosym = 0; - int twopass = 0; - int extra = 0; + int autosm = 0; int doplot = 0; double plotpts[2][3]; /* doplot == 2 start/end points */ int doh = 0; /* half scale */ @@ -482,11 +481,8 @@ int main(int argc, char *argv[]) { } else if (argv[fa][1] == 's') { dosym = 1; - } else if (argv[fa][1] == '2') { - twopass = 1; - - } else if (argv[fa][1] == 'x' || argv[fa][1] == 'X') { - extra = 1; + } else if (argv[fa][1] == 'x') { + autosm = 1; /* smoothing factor */ } else if (argv[fa][1] == 'S') { @@ -502,11 +498,8 @@ int main(int argc, char *argv[]) { } - if (twopass) - flags |= RSPL_2PASSSMTH; - - if (extra) - flags |= RSPL_EXTRAFIT2; + if (autosm) + flags |= RSPL_AUTOSMOOTH; if (dosym) flags |= RSPL_SYMDOMAIN; diff --git a/rspl/t3ddf.c b/rspl/t3ddf.c index b0e7d18..4a43f0d 100644 --- a/rspl/t3ddf.c +++ b/rspl/t3ddf.c @@ -22,6 +22,7 @@ #include "rspl.h" #include "tiffio.h" #include "plot.h" +#include "ui.h" #ifdef NEVER #define INTERP spline_interp @@ -103,7 +104,7 @@ void usage(void) { fprintf(stderr," -r resx,resy,resz Set grid resolutions (def %d %d %d)\n",GRES0,GRES1,GRES2); fprintf(stderr," -h Test half scale resolution too\n"); fprintf(stderr," -q Test quarter scale resolution too\n"); - fprintf(stderr," -x Use extra fitting\n"); + fprintf(stderr," -x Use auto smoothing\n"); fprintf(stderr," -s Test symetric smoothness (set asymetric -r !)\n"); fprintf(stderr," -s Test symetric smoothness\n"); fprintf(stderr," -p plot 4 slices, xy = 0.5, yz = 0.5, xz = 0.5, x=y=z\n"); @@ -121,8 +122,7 @@ int main(int argc, char *argv[]) { co *test_points = test_points1; int npoints = sizeof(test_points1)/sizeof(co); double wweight = 1.0; - int twopass = 0; - int extra = 0; + int autosm = 0; int dosym = 0; int doplot = 0; int doh = 0; @@ -202,8 +202,8 @@ int main(int argc, char *argv[]) { } else if (argv[fa][1] == 's' || argv[fa][1] == 'S') { dosym = 1; - } else if (argv[fa][1] == 'x' || argv[fa][1] == 'X') { - extra = 1; + } else if (argv[fa][1] == 'x') { + autosm = 1; } else if (argv[fa][1] == 's') { dosym = 1; @@ -215,11 +215,8 @@ int main(int argc, char *argv[]) { } - if (twopass) - flags |= RSPL_2PASSSMTH; - - if (extra) - flags |= RSPL_EXTRAFIT2; + if (autosm) + flags |= RSPL_AUTOSMOOTH; if (dosym) flags |= RSPL_SYMDOMAIN; diff --git a/rspl/tnd.c b/rspl/tnd.c index 95e4d16..c6f0911 100644 --- a/rspl/tnd.c +++ b/rspl/tnd.c @@ -22,6 +22,7 @@ #include "rspl.h" #include "numlib.h" #include "tiffio.h" +#include "plot.h" #ifdef NEVER FILE *verbose_out = stdout; @@ -40,6 +41,10 @@ int verbose_level = 6; /* Current verbosity level */ #undef TEST_SLICE #undef TEST_RANDOM_POINTS +#ifdef TEST_SLICE +# include "ui.h" +#endif + #define MAX_ITS 500 #define IT_TOL 0.0005 #define GRES 17 /* Grid resolution */ diff --git a/scanin/CMP_Digital_Target-3.cht b/scanin/CMP_Digital_Target-3.cht deleted file mode 100644 index eb95ed8..0000000 --- a/scanin/CMP_Digital_Target-3.cht +++ /dev/null @@ -1,1210 +0,0 @@ - -BOXES 571 - F _ _ 100 200 3100 200 3100 2100 100 2100 - D ALL ALL _ _ 3200 200 0 0 0 0 - X A Z 1 19 100 100 100 200 100 100 - X 2A 2D 1 19 100 100 2700 200 100 100 - -BOX_SHRINK 12 - -REF_ROTATION 0.0 - -XLIST 31 - 100 1 1 - 200 1 1 - 300 1 1 - 400 1 1 - 500 1 1 - 600 1 1 - 700 1 1 - 800 1 1 - 900 1 1 - 1000 1 1 - 1100 1 1 - 1200 1 1 - 1300 1 1 - 1400 1 1 - 1500 1 1 - 1600 1 1 - 1700 1 1 - 1800 1 1 - 1900 1 1 - 2000 1 1 - 2100 1 1 - 2200 1 1 - 2300 1 1 - 2400 1 1 - 2500 1 1 - 2600 1 1 - 2700 1 1 - 2800 1 1 - 2900 1 1 - 3000 1 1 - 3100 1 1 - -YLIST 21 - 200 1 1 - 300 1 1 - 400 1 1 - 500 1 1 - 600 1 1 - 700 1 1 - 800 1 1 - 900 1 1 - 1000 1 1 - 1100 1 1 - 1200 1 1 - 1300 1 1 - 1400 1 1 - 1500 1 1 - 1500 1 1 - 1600 1 1 - 1700 1 1 - 1800 1 1 - 1900 1 1 - 2000 1 1 - 2100 1 1 - -EXPECTED XYZ 570 -A1 19.991 14.120 27.886 -B1 19.926 34.054 14.005 -C1 6.2319 5.6339 19.078 -D1 32.785 35.198 16.672 -E1 38.996 22.658 25.805 -F1 16.011 17.612 14.561 -G1 39.496 24.997 12.003 -H1 7.4905 6.2468 18.358 -I1 11.987 23.286 6.5928 -J1 16.591 12.444 27.331 -K1 63.038 64.179 58.403 -L1 4.3513 3.8393 2.7750 -M1 27.386 30.873 42.527 -N1 31.789 44.281 40.439 -O1 59.453 61.985 40.335 -P1 26.783 15.713 3.5833 -Q1 3.0238 3.6843 3.0876 -R1 15.462 28.885 12.776 -S1 23.694 16.421 29.352 -T1 65.900 73.381 11.377 -U1 8.3333 15.036 13.749 -V1 72.416 77.985 33.423 -W1 16.393 25.254 38.122 -X1 2.3144 2.3581 1.9303 -Y1 27.102 23.276 16.813 -Z1 2.6994 2.8850 2.2332 -2A1 10.757 20.588 4.8216 -2B1 40.765 45.919 58.857 -2C1 22.864 16.381 33.839 -2D1 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-L10 47.518 38.484 37.887 -M10 30.202 29.466 28.978 -N10 50.671 50.438 49.901 -O10 84.087 84.218 84.130 -P10 130.92 131.27 131.19 -Q10 174.24 174.94 173.31 -R10 208.46 209.75 212.17 -S10 61.440 61.759 68.112 -T10 189.59 154.63 195.61 -U10 70.065 139.76 58.155 -V10 34.382 38.877 37.374 -W10 81.185 148.91 88.683 -X10 31.337 30.706 30.647 -Y10 132.10 124.54 122.36 -Z10 128.86 77.259 44.848 -2A10 121.07 144.71 145.24 -2B10 91.404 54.498 76.524 -2C10 122.45 129.19 129.52 -2D10 52.091 43.712 85.349 -A11 95.121 56.945 109.13 -B11 49.247 84.978 41.595 -C11 201.38 188.28 201.57 -D11 165.99 106.71 48.883 -E11 142.45 151.87 140.77 -F11 59.895 43.373 70.686 -G11 185.60 179.80 175.52 -H11 62.810 62.001 39.464 -I11 182.38 181.99 177.01 -J11 44.613 62.579 56.523 -K11 177.26 171.26 154.02 -L11 81.706 58.921 119.57 -M11 30.648 29.769 29.464 -N11 56.534 56.324 55.689 -O11 89.911 89.936 88.980 -P11 140.77 141.41 140.88 -Q11 179.84 180.21 178.58 -R11 212.60 213.84 215.53 -S11 66.493 66.184 65.558 -T11 187.32 160.61 146.99 -U11 59.842 44.929 41.517 -V11 100.71 151.70 177.40 -W11 32.433 32.983 31.555 -X11 103.41 161.56 150.03 -Y11 49.930 46.756 84.028 -Z11 157.24 187.57 185.20 -2A11 69.840 130.51 46.639 -2B11 164.73 190.77 189.92 -2C11 67.660 57.565 50.639 -2D11 146.88 73.255 46.894 -A12 149.18 183.06 84.464 -B12 72.446 71.794 146.17 -C12 111.58 163.80 82.344 -D12 67.115 62.023 67.669 -E12 202.25 206.59 144.16 -F12 142.52 142.52 149.46 -G12 52.218 46.843 96.005 -H12 95.301 157.62 128.66 -I12 58.804 42.199 45.333 -J12 201.67 207.01 112.57 -K12 76.878 56.433 113.86 -L12 110.43 164.87 121.89 -M12 31.073 30.502 29.828 -N12 60.863 60.999 60.221 -O12 97.436 97.414 96.425 -P12 146.96 147.76 147.68 -Q12 186.04 186.49 184.52 -R12 217.03 217.69 217.80 -S12 173.81 166.67 164.48 -T12 61.998 59.133 126.43 -U12 133.08 178.53 107.01 -V12 159.59 92.307 67.569 -W12 92.823 93.091 102.67 -X12 153.31 79.910 48.385 -Y12 76.169 77.765 152.48 -Z12 80.867 145.82 55.209 -2A12 88.726 84.091 155.13 -2B12 201.37 208.14 195.53 -2C12 32.004 31.705 30.813 -2D12 135.53 145.08 187.78 -A13 86.415 69.301 138.07 -B13 104.58 136.42 46.559 -C13 147.82 79.114 100.32 -D13 75.334 85.157 157.26 -E13 178.81 179.96 148.24 -F13 55.482 72.327 100.16 -G13 200.09 199.75 184.43 -H13 76.688 84.710 151.41 -I13 129.73 107.35 52.022 -J13 119.03 160.66 198.42 -K13 56.473 50.032 106.16 -L13 153.18 106.56 46.936 -M13 32.264 31.978 31.289 -N13 66.470 66.520 66.246 -O13 105.28 105.86 104.76 -P13 153.75 154.63 154.12 -Q13 192.03 192.25 191.27 -R13 221.68 221.89 221.96 -S13 104.20 75.856 145.33 -T13 121.87 124.18 72.370 -U13 91.392 55.886 72.021 -V13 193.01 176.53 161.70 -W13 97.047 61.496 44.638 -X13 124.18 171.27 172.48 -Y13 100.95 103.55 45.932 -Z13 98.719 76.722 108.03 -2A13 193.99 204.68 205.71 -2B13 77.619 94.368 167.50 -2C13 91.512 53.191 50.701 -2D13 76.609 104.98 135.45 -A14 129.84 79.131 147.61 -B14 74.731 86.884 158.53 -C14 178.45 194.65 198.02 -D14 122.80 65.789 71.805 -E14 99.529 101.15 66.691 -F14 133.73 68.160 43.803 -G14 130.31 174.28 137.87 -H14 110.49 77.413 145.63 -I14 30.999 29.764 29.587 -J14 120.14 114.13 178.99 -K14 128.29 64.544 74.117 -L14 176.70 157.34 183.40 -M14 59.777 105.00 45.141 -N14 182.00 181.11 190.30 -O14 42.651 40.749 62.042 -P14 151.32 150.31 182.91 -Q14 162.51 94.932 125.82 -R14 99.745 94.301 93.467 -S14 107.25 159.78 58.090 -T14 128.01 72.369 117.84 -U14 107.76 101.18 90.766 -V14 204.14 190.16 48.644 -W14 82.597 65.626 44.970 -X14 166.39 166.20 175.82 -Y14 100.69 152.17 51.384 -Z14 91.650 100.20 90.746 -2A14 143.62 91.243 162.04 -2B14 214.71 215.34 214.31 -2C14 101.32 87.875 161.74 -2D14 105.18 138.75 68.497 -A15 124.84 68.758 114.78 -B15 99.929 150.22 167.53 -C15 121.25 165.78 57.133 -D15 129.49 121.04 130.58 -E15 161.27 95.254 123.97 -F15 148.20 174.03 142.22 -G15 150.41 98.923 167.42 -H15 75.180 91.615 158.04 -I15 196.22 179.25 172.32 -J15 66.558 62.105 60.696 -K15 174.25 177.65 112.40 -L15 116.33 112.29 162.02 -M15 133.68 171.46 73.038 -N15 102.47 146.49 198.15 -O15 64.715 46.574 43.032 -P15 105.91 159.08 164.78 -Q15 34.379 33.754 36.003 -R15 102.62 61.271 119.89 -S15 159.62 86.224 48.021 -T15 95.611 158.57 127.45 -U15 133.03 87.140 157.87 -V15 48.894 77.368 43.484 -W15 182.54 191.20 178.40 -X15 126.00 95.308 166.74 -Y15 38.376 39.986 33.590 -Z15 148.30 148.94 147.37 -2A15 146.55 75.055 68.429 -2B15 71.706 70.645 144.63 -2C15 133.02 80.816 44.452 -2D15 82.777 113.54 117.52 -A16 147.43 75.104 45.417 -B16 162.22 145.05 108.87 -C16 43.273 69.681 61.261 -D16 154.15 106.72 65.606 -E16 149.19 148.83 193.98 -F16 157.80 111.38 47.573 -G16 100.61 79.449 149.13 -H16 206.92 207.61 211.44 -I16 97.895 82.272 66.348 -J16 172.80 178.46 82.595 -K16 183.90 191.17 190.75 -L16 75.048 76.021 151.02 -M16 159.42 88.282 47.938 -N16 133.24 176.09 150.50 -O16 59.749 48.251 40.198 -P16 171.06 168.69 161.58 -Q16 53.260 54.841 37.700 -R16 147.03 76.735 66.424 -S16 63.206 78.809 107.93 -T16 150.22 77.352 47.226 -U16 97.824 159.49 134.64 -V16 133.39 81.567 151.23 -W16 155.32 82.024 48.477 -X16 81.301 147.86 56.013 -Y16 141.53 112.75 178.08 -Z16 31.556 30.196 30.075 -2A16 166.04 149.78 129.15 -2B16 53.939 48.402 100.70 -2C16 152.96 83.435 68.500 -2D16 141.97 181.00 131.63 -A17 93.002 152.57 112.99 -B17 48.562 44.595 81.595 -C17 155.24 137.12 108.13 -D17 37.723 54.820 48.270 -E17 163.04 158.68 133.73 -F17 155.10 81.151 47.477 -G17 119.76 108.26 175.73 -H17 155.83 188.69 108.40 -I17 54.125 49.417 43.252 -J17 146.89 182.65 155.76 -K17 148.71 77.345 50.119 -L17 53.925 41.854 39.291 -M17 105.46 156.83 167.45 -N17 149.16 79.222 103.08 -O17 109.98 107.89 138.78 -P17 151.99 78.765 47.620 -Q17 195.13 169.06 200.08 -R17 73.599 136.55 49.271 -S17 37.757 33.718 34.938 -T17 132.61 142.77 197.68 -U17 181.82 145.93 103.48 -V17 204.10 203.91 210.35 -W17 175.82 179.36 52.229 -X17 155.69 156.50 143.88 -Y17 65.731 44.495 80.654 -Z17 67.930 138.21 88.916 -2A17 156.40 87.866 68.881 -2B17 68.870 68.990 41.254 -2C17 209.60 202.66 207.60 -2D17 108.97 87.062 152.98 -A18 200.70 204.40 197.90 -B18 164.93 117.44 177.68 -C18 61.227 72.827 56.013 -D18 204.51 199.19 195.95 -E18 73.692 73.322 148.06 -F18 68.313 128.24 45.392 -G18 131.14 85.288 152.52 -H18 89.609 153.68 93.128 -I18 30.179 29.676 28.922 -J18 208.65 210.69 209.48 -K18 88.863 70.346 63.498 -L18 197.92 177.16 54.602 -M18 143.55 91.470 162.00 -N18 121.99 131.52 122.44 -O18 172.04 115.00 91.328 -P18 81.187 74.923 148.64 -Q18 117.91 169.48 101.12 -R18 183.93 145.62 52.297 -S18 55.452 105.38 65.438 -T18 211.11 208.92 210.90 -U18 177.41 124.39 134.00 -V18 53.506 90.891 78.889 -W18 197.65 205.13 206.81 -X18 51.396 86.860 43.674 -Y18 193.58 175.18 113.92 -Z18 96.313 103.94 178.60 -2A18 168.53 106.08 128.73 -2B18 85.496 104.15 136.89 -2C18 208.09 210.26 179.31 -2D18 161.94 92.492 50.116 -A19 156.71 112.54 101.12 -B19 42.513 58.501 40.536 -C19 172.17 152.13 143.40 -D19 159.73 183.13 54.703 -E19 119.21 105.48 95.518 -F19 30.235 29.764 29.269 -G19 88.689 134.99 136.69 -H19 86.392 53.901 45.566 -I19 126.88 158.15 160.78 -J19 120.42 79.125 64.241 -K19 108.34 160.80 164.56 -L19 49.327 39.952 38.592 -M19 67.917 128.27 44.976 -N19 127.84 62.080 45.945 -O19 74.380 138.45 130.11 -P19 30.060 29.337 28.817 -Q19 147.97 73.539 46.480 -R19 75.153 76.608 151.15 -S19 78.339 144.41 52.936 -T19 31.312 30.556 30.767 -U19 169.32 177.98 203.35 -V19 44.471 72.376 45.634 -W19 199.02 205.39 55.979 -X19 90.125 81.954 73.039 -Y19 207.33 211.44 212.22 -Z19 182.95 126.85 175.69 -2A19 77.857 90.598 163.13 -2B19 202.16 204.23 49.052 -2C19 162.94 96.440 68.740 -2D19 83.952 84.116 160.97 - diff --git a/scanin/CMP_Digital_Target-3.cie b/scanin/CMP_Digital_Target-3.cie deleted file mode 100644 index 6c8ff5d..0000000 --- a/scanin/CMP_Digital_Target-3.cie +++ /dev/null @@ -1,591 +0,0 @@ -CTI3 - -DESCRIPTOR "Argyll Calibration Target chart information 3" -ORIGINATOR "Argyll chartread" -CREATED "Mon Sep 7 08:33:21 2009" -KEYWORD "DEVICE_CLASS" -DEVICE_CLASS "OUTPUT" -KEYWORD "COLOR_REP" -COLOR_REP "RGB_XYZ" -KEYWORD "TARGET_INSTRUMENT" -TARGET_INSTRUMENT "GretagMacbeth i1 Pro" - -KEYWORD "SAMPLE_LOC" -NUMBER_OF_FIELDS 8 -BEGIN_DATA_FORMAT -SAMPLE_ID SAMPLE_LOC RGB_R RGB_G RGB_B XYZ_X XYZ_Y XYZ_Z -END_DATA_FORMAT - -NUMBER_OF_SETS 570 -BEGIN_DATA -1 "A1" 106.60 73.896 140.50 19.991 14.120 27.886 -2 "B1" 101.22 157.76 91.298 19.926 34.054 14.005 -3 "C1" 56.474 54.712 116.20 6.2319 5.6339 19.078 -4 "D1" 142.23 143.96 106.67 32.785 35.198 16.672 -5 "E1" 161.58 92.303 143.82 38.996 22.658 25.805 -6 "F1" 90.405 96.497 94.153 16.011 17.612 14.561 -7 "G1" 163.39 98.124 88.178 39.496 24.997 12.003 -8 "H1" 63.278 55.370 115.21 7.4905 6.2468 18.358 -9 "I1" 71.385 133.64 49.363 11.987 23.286 6.5928 -10 "J1" 97.757 75.383 143.28 16.591 12.444 27.331 -11 "K1" 194.49 193.52 200.39 63.038 64.179 58.403 -12 "L1" 43.729 37.037 36.612 4.3513 3.8393 2.7750 -13 "M1" 128.36 143.53 178.51 27.386 30.873 42.527 -14 "N1" 136.71 176.12 173.90 31.789 44.281 40.439 -15 "O1" 190.25 190.03 173.26 59.453 61.985 40.335 -16 "P1" 139.89 69.074 45.054 26.783 15.713 3.5833 -17 "Q1" 34.433 40.188 37.667 3.0238 3.6843 3.0876 -18 "R1" 87.362 153.04 89.833 15.462 28.885 12.776 -19 "S1" 124.79 84.048 151.84 23.694 16.421 29.352 -20 "T1" 201.42 206.76 79.283 65.900 73.381 11.377 -21 "U1" 59.875 104.70 93.370 8.3333 15.036 13.749 -22 "V1" 205.39 208.60 159.63 72.416 77.985 33.423 -23 "W1" 91.572 136.12 167.03 16.393 25.254 38.122 -24 "X1" 30.336 29.306 28.957 2.3144 2.3581 1.9303 -25 "Y1" 132.60 110.17 107.91 27.102 23.276 16.813 -26 "Z1" 32.956 33.215 31.185 2.6994 2.8850 2.2332 -27 "2A1" 70.282 129.32 46.946 10.757 20.588 4.8216 -28 "2B1" 159.00 173.65 202.91 40.765 45.919 58.857 -29 "2C1" 121.19 88.150 161.84 22.864 16.381 33.839 -30 "2D1" 136.59 101.50 125.83 28.289 21.404 20.483 -31 "A2" 75.414 80.525 150.43 10.412 10.567 30.978 -32 "B2" 128.64 63.027 42.872 24.139 14.085 3.5857 -33 "C2" 101.62 116.40 166.26 19.473 21.752 38.376 -34 "D2" 129.62 78.772 146.55 26.280 16.991 28.035 -35 "E2" 164.20 144.75 82.589 42.573 39.671 9.6556 -36 "F2" 96.904 110.83 179.21 17.113 18.705 43.690 -37 "G2" 157.24 84.071 46.359 35.850 22.548 3.8554 -38 "H2" 84.439 70.424 140.26 13.037 10.392 26.425 -39 "I2" 81.661 147.44 58.864 14.946 28.262 8.1825 -40 "J2" 35.433 35.856 32.072 3.1780 3.3914 2.3047 -41 "K2" 150.66 144.08 140.58 35.880 35.178 26.683 -42 "L2" 158.35 93.379 154.74 36.434 22.147 28.386 -43 "M2" 100.38 93.492 99.897 17.689 17.022 15.072 -44 "N2" 158.93 93.968 95.921 36.396 23.022 13.623 -45 "O2" 102.60 137.21 171.09 19.884 26.988 39.544 -46 "P2" 74.932 50.703 44.902 10.294 7.4271 3.4839 -47 "Q2" 115.12 165.78 166.70 24.415 37.008 36.288 -48 "R2" 157.97 92.663 150.58 36.078 21.682 26.898 -49 "S2" 83.913 88.787 161.27 12.232 12.247 33.412 -50 "T2" 72.772 133.20 48.154 12.486 23.920 5.4357 -51 "U2" 155.64 177.45 175.23 38.913 47.091 40.794 -52 "V2" 65.311 50.797 44.712 8.3779 6.8387 3.7119 -53 "W2" 30.304 29.389 28.630 2.3401 2.3804 1.9157 -54 "X2" 98.383 112.57 76.501 17.501 20.678 9.7225 -55 "Y2" 196.95 176.56 81.174 60.324 56.490 9.7029 -56 "Z2" 106.87 76.461 64.020 18.340 14.257 6.9452 -57 "2A2" 149.29 180.57 55.756 39.051 50.700 6.0515 -58 "2B2" 46.850 72.093 42.887 5.3134 8.7205 3.7883 -59 "2C2" 126.21 86.097 104.74 24.040 16.842 14.641 -60 "2D2" 68.443 138.05 59.668 10.963 22.720 8.1563 -61 "A3" 40.703 34.668 43.170 3.2215 2.8069 3.1344 -62 "B3" 140.80 177.61 130.47 35.703 49.122 24.276 -63 "C3" 71.422 72.467 144.63 9.6710 9.2674 28.141 -64 "D3" 157.83 159.05 109.87 39.368 42.329 16.693 -65 "E3" 74.511 78.412 148.91 9.8448 9.8037 29.501 -66 "F3" 172.35 192.98 167.60 50.040 60.997 38.371 -67 "G3" 72.505 72.322 146.66 9.8731 9.2375 28.216 -68 "H3" 132.85 167.63 50.020 31.926 43.409 5.2962 -69 "I3" 99.822 132.27 193.48 18.889 24.530 52.235 -70 "J3" 158.78 88.817 87.144 36.271 22.167 11.952 -71 "K3" 146.32 156.61 192.38 34.281 37.060 50.573 -72 "L3" 30.978 30.641 29.826 2.4511 2.5353 2.0398 -73 "M3" 146.27 153.30 150.57 34.120 37.136 30.510 -74 "N3" 144.16 70.919 46.534 28.309 16.461 3.7229 -75 "O3" 85.091 72.947 144.27 12.851 10.508 27.052 -76 "P3" 122.91 131.12 67.881 24.532 27.910 7.4170 -77 "Q3" 140.27 116.77 178.48 29.800 23.719 40.761 -78 "R3" 73.020 103.31 46.082 11.420 17.249 4.2060 -79 "S3" 148.58 74.828 46.145 30.098 17.923 3.6411 -80 "T3" 92.676 106.61 179.17 15.102 16.455 41.548 -81 "U3" 89.067 149.36 56.522 16.816 29.880 6.2892 -82 "V3" 104.27 103.98 177.68 19.054 17.886 40.635 -83 "W3" 122.27 64.970 44.965 21.160 13.146 3.6418 -84 "X3" 190.80 157.08 167.65 56.827 44.647 36.033 -85 "Y3" 55.033 94.759 44.077 7.3224 13.350 4.3645 -86 "Z3" 157.08 85.576 87.558 34.447 20.515 11.595 -87 "2A3" 79.250 88.578 159.52 10.795 11.448 32.464 -88 "2B3" 108.15 127.71 55.172 20.617 25.691 5.5795 -89 "2C3" 78.102 75.847 150.05 11.126 10.174 28.914 -90 "2D3" 202.83 194.20 199.16 68.724 66.102 56.410 -91 "A4" 105.09 86.729 157.14 19.671 15.554 33.919 -92 "B4" 99.696 102.26 43.923 17.501 19.753 3.8498 -93 "C4" 107.26 130.81 190.72 21.509 25.734 51.674 -94 "D4" 178.30 141.51 75.719 51.958 42.451 9.1213 -95 "E4" 86.201 111.97 176.39 14.112 17.806 42.697 -96 "F4" 192.41 193.92 143.50 61.487 65.884 27.427 -97 "G4" 161.20 95.317 155.94 38.420 23.239 29.457 -98 "H4" 74.863 77.945 149.59 9.8759 9.7311 29.126 -99 "I4" 207.61 208.23 184.16 75.793 79.718 46.695 -100 "J4" 70.931 101.90 131.71 10.595 15.480 24.653 -101 "K4" 147.01 94.545 162.80 32.187 21.331 32.814 -102 "L4" 81.586 103.83 104.84 13.777 17.753 16.663 -103 "M4" 141.06 69.848 45.247 27.339 16.027 3.5603 -104 "N4" 90.494 151.07 150.65 16.922 28.995 29.336 -105 "O4" 55.294 41.016 63.313 6.3066 4.7610 6.9921 -106 "P4" 111.84 140.47 103.22 22.390 29.210 15.592 -107 "Q4" 144.45 93.249 162.31 30.657 20.369 32.268 -108 "R4" 105.31 104.82 101.31 19.152 19.807 15.592 -109 "S4" 79.325 137.68 48.973 13.948 25.671 5.2122 -110 "T4" 84.189 150.82 120.01 14.991 27.898 19.745 -111 "U4" 81.413 52.379 93.432 11.486 7.6381 12.484 -112 "V4" 76.459 77.531 42.048 10.749 11.899 3.2945 -113 "W4" 211.28 212.44 213.00 77.699 80.782 67.995 -114 "X4" 125.79 102.06 67.469 24.430 21.610 7.1800 -115 "Y4" 36.736 36.340 46.306 3.2104 3.1999 4.2513 -116 "Z4" 83.114 150.29 61.891 14.450 27.763 8.5197 -117 "2A4" 117.71 90.574 160.37 21.679 16.235 32.574 -118 "2B4" 89.463 153.87 72.494 15.737 29.267 10.078 -119 "2C4" 42.498 47.832 65.570 3.9226 4.4418 7.5674 -120 "2D4" 115.91 156.34 101.73 24.022 34.375 15.022 -121 "A5" 100.43 57.576 43.875 16.920 10.945 3.6233 -122 "B5" 139.57 140.52 191.37 32.876 32.373 51.547 -123 "C5" 106.24 157.82 63.346 23.454 37.144 7.5202 -124 "D5" 120.63 119.68 128.56 24.762 25.266 23.702 -125 "E5" 144.32 70.530 44.643 29.192 16.958 3.5359 -126 "F5" 112.12 164.88 139.23 23.640 37.186 26.447 -127 "G5" 103.37 136.87 47.413 20.387 28.842 4.7028 -128 "H5" 36.251 41.780 35.395 3.3636 4.0809 2.6833 -129 "I5" 111.24 162.80 164.26 23.272 35.820 35.198 -130 "J5" 143.56 87.562 156.55 30.642 19.573 30.103 -131 "K5" 109.54 163.06 164.19 22.753 35.416 35.064 -132 "L5" 79.627 52.133 45.354 11.209 7.8786 3.5144 -133 "M5" 92.456 152.33 153.19 17.513 29.721 30.234 -134 "N5" 34.714 33.013 32.281 2.9935 2.9559 2.2837 -135 "O5" 166.35 175.94 163.99 44.139 49.035 35.423 -136 "P5" 89.669 79.549 47.144 14.200 13.959 3.6761 -137 "Q5" 191.24 182.85 188.48 59.021 56.831 48.262 -138 "R5" 51.675 70.899 41.770 6.3401 9.2262 3.4989 -139 "S5" 170.53 177.54 173.76 45.700 49.818 40.124 -140 "T5" 63.890 93.942 45.687 9.3142 14.437 4.0636 -141 "U5" 30.168 29.299 28.940 2.3535 2.3975 1.9290 -142 "V5" 133.08 133.14 122.05 27.766 28.925 20.091 -143 "W5" 36.054 32.923 33.276 3.0887 2.9300 2.3596 -144 "X5" 61.314 111.77 45.755 8.7239 16.803 5.0276 -145 "Y5" 203.39 209.40 208.06 70.161 75.882 63.247 -146 "Z5" 76.353 77.670 109.77 11.191 11.244 16.654 -147 "2A5" 193.86 202.18 186.73 62.394 68.771 47.096 -148 "2B5" 84.630 73.965 145.61 12.640 10.459 27.333 -149 "2C5" 68.392 129.05 45.336 11.160 21.761 5.5099 -150 "2D5" 210.46 210.49 195.89 77.413 80.592 53.936 -151 "A6" 156.79 90.614 148.03 37.703 22.453 27.499 -152 "B6" 88.481 111.82 178.46 14.943 18.301 44.058 -153 "C6" 167.90 108.82 66.983 44.282 30.956 7.9185 -154 "D6" 66.578 110.85 54.360 10.440 18.144 6.5076 -155 "E6" 148.31 87.735 154.80 32.892 20.486 29.274 -156 "F6" 93.611 155.13 115.73 17.819 31.263 19.184 -157 "G6" 40.190 39.280 58.763 3.7468 3.6058 6.3752 -158 "H6" 170.89 152.59 147.19 45.907 41.132 28.818 -159 "I6" 46.469 44.545 75.326 4.4472 4.1158 9.1204 -160 "J6" 102.48 151.18 180.03 20.388 31.549 44.358 -161 "K6" 30.872 30.164 29.516 2.3970 2.4515 1.9961 -162 "L6" 83.294 137.00 98.315 14.323 24.343 14.536 -163 "M6" 30.722 30.150 29.446 2.3623 2.4293 1.9541 -164 "N6" 163.74 151.67 194.83 41.190 36.767 50.714 -165 "O6" 199.83 203.65 49.970 62.357 69.847 6.3069 -166 "P6" 77.512 86.873 159.07 10.124 10.811 31.915 -167 "Q6" 200.99 194.31 190.45 67.127 65.762 49.352 -168 "R6" 165.39 100.99 154.68 39.128 23.959 27.822 -169 "S6" 69.496 98.026 61.986 10.413 15.222 6.7952 -170 "T6" 167.68 124.93 146.98 41.195 30.074 26.292 -171 "U6" 62.706 68.483 60.211 8.4099 9.5591 6.5834 -172 "V6" 174.63 108.06 166.14 43.942 26.976 32.439 -173 "W6" 138.60 174.02 106.27 33.397 44.263 15.513 -174 "X6" 192.12 161.59 197.05 56.629 45.672 50.137 -175 "Y6" 71.207 70.503 63.173 10.198 10.583 6.9283 -176 "Z6" 171.42 121.85 182.26 42.782 29.822 40.386 -177 "2A6" 193.77 197.98 207.14 61.567 65.013 61.274 -178 "2B6" 117.80 82.965 151.94 21.335 15.115 28.916 -179 "2C6" 36.305 39.517 34.462 3.2203 3.7212 2.6005 -180 "2D6" 152.48 145.44 148.89 35.799 34.854 29.422 -181 "A7" 93.637 153.35 73.710 19.123 33.078 10.667 -182 "B7" 83.277 73.755 144.52 12.915 10.831 28.225 -183 "C7" 206.85 206.70 197.33 77.518 80.587 57.622 -184 "D7" 77.454 73.349 146.72 11.348 10.154 28.703 -185 "E7" 70.809 132.64 47.023 12.442 24.254 5.6475 -186 "F7" 91.049 88.345 163.10 15.345 13.969 34.910 -187 "G7" 177.87 190.87 53.018 52.703 61.988 5.9513 -188 "H7" 75.960 87.720 159.98 9.9056 10.888 32.881 -189 "I7" 199.48 192.77 181.55 67.471 66.483 44.705 -190 "J7" 64.713 68.090 67.610 8.8426 9.6268 8.1730 -191 "K7" 193.08 175.48 139.54 61.925 56.855 24.968 -192 "L7" 75.430 87.876 159.79 9.6349 10.726 32.427 -193 "M7" 133.24 173.17 56.742 32.435 45.157 6.1480 -194 "N7" 148.49 75.098 46.216 30.427 18.146 3.6270 -195 "O7" 97.134 97.177 86.559 16.928 17.695 11.911 -196 "P7" 191.20 160.30 54.685 56.094 48.894 4.9467 -197 "Q7" 80.068 80.251 125.32 11.934 11.778 20.573 -198 "R7" 83.368 147.19 55.358 15.285 28.434 6.3346 -199 "S7" 37.747 44.719 36.907 3.5054 4.3615 2.7830 -200 "T7" 146.52 175.26 205.50 35.099 44.589 58.771 -201 "U7" 133.97 82.941 152.98 26.155 17.005 28.079 -202 "V7" 63.182 103.22 97.125 8.9086 14.924 14.071 -203 "W7" 144.22 147.07 76.384 30.611 33.536 8.6858 -204 "X7" 212.78 213.19 211.89 79.113 81.784 66.503 -205 "Y7" 77.896 86.298 158.37 10.240 10.764 31.229 -206 "Z7" 71.313 133.52 47.389 11.976 23.218 5.4228 -207 "2A7" 75.926 78.650 151.98 9.9976 9.7574 28.929 -208 "2B7" 118.08 168.98 98.781 25.572 39.297 14.262 -209 "2C7" 207.34 198.34 43.623 66.257 69.908 5.8960 -210 "2D7" 92.639 108.26 179.66 14.893 16.603 41.626 -211 "A8" 69.904 137.36 58.325 12.100 24.359 8.4071 -212 "B8" 167.09 144.55 49.599 42.436 39.900 4.7260 -213 "C8" 111.10 78.672 121.83 20.574 15.216 20.136 -214 "D8" 74.340 141.34 56.829 12.701 25.255 8.1803 -215 "E8" 104.13 74.055 141.65 18.324 13.039 26.409 -216 "F8" 90.075 154.61 90.911 16.724 30.035 13.212 -217 "G8" 36.341 33.896 36.868 3.3200 3.1831 3.0291 -218 "H8" 101.65 159.66 134.07 20.304 33.570 24.443 -219 "I8" 34.216 33.499 37.712 2.9169 2.9009 3.0168 -220 "J8" 174.41 165.56 173.38 48.038 46.099 39.891 -221 "K8" 46.252 66.300 42.397 5.2241 8.0427 3.5985 -222 "L8" 152.69 184.12 182.69 38.619 50.368 44.407 -223 "M8" 30.240 29.863 28.939 2.3428 2.3959 1.9273 -224 "N8" 35.593 35.467 34.190 3.1956 3.3116 2.6415 -225 "O8" 71.728 71.553 70.937 10.494 10.847 8.8081 -226 "P8" 115.92 116.10 114.68 22.233 23.005 18.548 -227 "Q8" 159.85 160.38 159.13 39.317 40.778 33.056 -228 "R8" 196.60 197.21 197.12 63.147 65.480 53.862 -229 "S8" 137.57 112.53 140.33 28.252 23.514 24.400 -230 "T8" 80.940 142.13 50.952 14.520 26.909 5.4756 -231 "U8" 99.365 133.93 196.43 18.057 24.054 51.817 -232 "V8" 30.957 30.566 29.813 2.3402 2.3911 1.9209 -233 "W8" 212.09 210.69 210.55 77.838 79.255 64.883 -234 "X8" 90.920 71.799 46.751 14.232 12.342 3.5677 -235 "Y8" 137.72 177.30 175.40 31.451 43.594 39.472 -236 "Z8" 39.524 49.911 38.685 3.8429 5.0881 3.0661 -237 "2A8" 130.39 176.13 127.05 27.844 41.491 21.140 -238 "2B8" 31.904 31.437 30.690 2.4921 2.5648 2.0613 -239 "2C8" 149.77 158.18 196.00 34.635 36.777 50.964 -240 "2D8" 30.719 29.824 29.600 2.3436 2.3905 1.9440 -241 "A9" 160.64 188.72 135.75 46.811 59.109 25.406 -242 "B9" 151.09 113.48 161.82 35.695 26.905 33.928 -243 "C9" 56.378 101.12 44.028 8.0578 15.313 4.8058 -244 "D9" 200.86 192.61 183.06 70.562 68.540 46.575 -245 "E9" 77.639 89.149 161.20 10.633 11.656 33.787 -246 "F9" 183.43 148.52 132.23 54.113 43.360 23.933 -247 "G9" 53.868 83.869 77.703 7.1200 11.358 10.328 -248 "H9" 144.68 93.693 163.06 31.237 20.786 32.756 -249 "I9" 80.625 147.05 117.46 14.469 27.174 19.553 -250 "J9" 82.612 53.093 45.342 11.813 8.1727 3.4750 -251 "K9" 179.05 178.11 205.03 51.613 51.265 59.093 -252 "L9" 68.256 128.21 45.397 11.232 21.889 5.3482 -253 "M9" 30.122 29.559 28.786 2.3389 2.3932 1.9205 -254 "N9" 44.132 44.030 43.113 4.6543 4.8363 3.9004 -255 "O9" 77.603 77.496 77.212 11.973 12.444 10.082 -256 "P9" 123.38 123.35 123.35 24.548 25.410 20.720 -257 "Q9" 167.61 168.12 167.11 43.270 44.842 36.215 -258 "R9" 202.61 204.17 205.53 68.113 71.034 59.864 -259 "S9" 152.34 81.269 59.657 31.468 18.903 5.4734 -260 "T9" 36.525 39.233 37.120 3.2297 3.6435 2.9170 -261 "U9" 147.79 112.59 105.57 31.779 25.042 15.321 -262 "V9" 128.85 175.42 85.449 30.098 43.673 10.856 -263 "W9" 202.12 182.11 203.04 65.360 57.273 55.175 -264 "X9" 58.841 111.22 46.014 7.8261 15.682 5.0934 -265 "Y9" 150.27 74.574 46.780 30.151 17.603 3.5424 -266 "Z9" 91.373 72.814 142.15 14.169 10.872 25.545 -267 "2A9" 178.42 178.87 165.68 49.740 51.961 35.295 -268 "2B9" 110.21 82.066 150.83 19.293 14.167 28.533 -269 "2C9" 115.57 141.00 82.227 23.305 29.469 10.465 -270 "2D9" 120.44 87.308 156.62 22.420 16.254 30.792 -271 "A10" 54.278 98.104 59.100 7.4766 14.316 6.7672 -272 "B10" 141.49 142.92 50.130 30.693 34.185 4.8132 -273 "C10" 69.545 135.98 93.417 11.568 23.235 13.773 -274 "D10" 30.772 30.009 29.471 2.4307 2.4999 2.0171 -275 "E10" 140.52 89.479 159.03 30.140 19.949 31.751 -276 "F10" 88.149 135.62 165.23 15.810 25.353 37.521 -277 "G10" 30.508 30.075 29.389 2.4272 2.4936 1.9887 -278 "H10" 75.794 144.13 86.030 12.549 25.096 11.562 -279 "I10" 29.881 29.286 28.915 2.3402 2.3788 1.9223 -280 "J10" 78.427 139.08 135.09 13.387 24.235 23.958 -281 "K10" 127.69 103.24 52.122 25.478 22.853 4.3681 -282 "L10" 47.518 38.484 37.887 5.0366 4.2550 2.8902 -283 "M10" 30.202 29.466 28.978 2.3374 2.3915 1.9194 -284 "N10" 50.671 50.438 49.901 5.8942 6.1054 4.9143 -285 "O10" 84.087 84.218 84.130 13.462 14.013 11.428 -286 "P10" 130.92 131.27 131.19 27.055 28.014 23.007 -287 "Q10" 174.24 174.94 173.31 47.406 49.169 39.386 -288 "R10" 208.46 209.75 212.17 73.974 77.043 65.729 -289 "S10" 61.440 61.759 68.112 7.8358 8.0794 7.9176 -290 "T10" 189.59 154.63 195.61 54.395 42.563 48.165 -291 "U10" 70.065 139.76 58.155 11.113 22.841 7.7084 -292 "V10" 34.382 38.877 37.374 2.9394 3.4387 2.9247 -293 "W10" 81.185 148.91 88.683 13.284 25.973 11.867 -294 "X10" 31.337 30.706 30.647 2.4768 2.5120 2.1182 -295 "Y10" 132.10 124.54 122.36 27.102 26.481 19.829 -296 "Z10" 128.86 77.259 44.848 23.978 16.698 3.6586 -297 "2A10" 121.07 144.71 145.24 24.659 30.178 27.108 -298 "2B10" 91.404 54.498 76.524 13.618 8.1445 8.4106 -299 "2C10" 122.45 129.19 129.52 24.412 26.496 22.533 -300 "2D10" 52.091 43.712 85.349 5.2897 4.2252 10.803 -301 "A11" 95.121 56.945 109.13 15.662 9.9371 16.757 -302 "B11" 49.247 84.978 41.595 6.3528 11.756 4.1276 -303 "C11" 201.38 188.28 201.57 70.247 65.054 58.834 -304 "D11" 165.99 106.71 48.883 42.904 30.283 4.3741 -305 "E11" 142.45 151.87 140.77 33.675 37.292 27.259 -306 "F11" 59.895 43.373 70.686 7.3260 5.3398 8.4321 -307 "G11" 185.60 179.80 175.52 56.748 56.026 41.441 -308 "H11" 62.810 62.001 39.464 8.1585 8.7147 3.0001 -309 "I11" 182.38 181.99 177.01 54.512 56.195 42.466 -310 "J11" 44.613 62.579 56.523 4.9736 7.2275 6.1574 -311 "K11" 177.26 171.26 154.02 50.413 50.352 29.675 -312 "L11" 81.706 58.921 119.57 11.783 8.3671 18.993 -313 "M11" 30.648 29.769 29.464 2.4004 2.4632 1.9865 -314 "N11" 56.534 56.324 55.689 7.0502 7.2979 5.9348 -315 "O11" 89.911 89.936 88.980 15.157 15.663 12.643 -316 "P11" 140.77 141.41 140.88 30.809 31.935 26.037 -317 "Q11" 179.84 180.21 178.58 51.029 52.827 42.179 -318 "R11" 212.60 213.84 215.53 78.892 82.077 69.152 -319 "S11" 66.493 66.184 65.558 9.0391 9.3614 7.5795 -320 "T11" 187.32 160.61 146.99 54.688 46.067 27.270 -321 "U11" 59.842 44.929 41.517 7.0672 5.5203 3.1542 -322 "V11" 100.71 151.70 177.40 19.018 30.251 40.808 -323 "W11" 32.433 32.983 31.555 2.6438 2.7813 2.1741 -324 "X11" 103.41 161.56 150.03 20.294 33.254 28.954 -325 "Y11" 49.930 46.756 84.028 4.7917 4.3367 10.461 -326 "Z11" 157.24 187.57 185.20 39.678 51.335 44.730 -327 "2A11" 69.840 130.51 46.639 11.397 22.075 5.4606 -328 "2B11" 164.73 190.77 189.92 43.396 54.386 47.692 -329 "2C11" 67.660 57.565 50.639 9.0264 8.0855 4.5632 -330 "2D11" 146.88 73.255 46.894 29.263 17.239 3.6542 -331 "A12" 149.18 183.06 84.464 42.435 55.238 11.960 -332 "B12" 72.446 71.794 146.17 10.244 9.5241 28.550 -333 "C12" 111.58 163.80 82.344 25.557 39.490 11.397 -334 "D12" 67.115 62.023 67.669 9.5983 9.1448 8.3283 -335 "E12" 202.25 206.59 144.16 71.285 77.444 27.463 -336 "F12" 142.52 142.52 149.46 32.592 33.399 30.058 -337 "G12" 52.218 46.843 96.005 5.1430 4.3541 13.182 -338 "H12" 95.301 157.62 128.66 18.517 32.087 22.562 -339 "I12" 58.804 42.199 45.333 6.9977 5.1440 3.8014 -340 "J12" 201.67 207.01 112.57 69.246 76.042 17.844 -341 "K12" 76.878 56.433 113.86 10.642 7.6407 17.593 -342 "L12" 110.43 164.87 121.89 21.927 35.477 19.681 -343 "M12" 31.073 30.502 29.828 2.4287 2.4921 1.9949 -344 "N12" 60.863 60.999 60.221 7.9937 8.3172 6.7360 -345 "O12" 97.436 97.414 96.425 17.120 17.761 14.285 -346 "P12" 146.96 147.76 147.68 33.242 34.486 28.221 -347 "Q12" 186.04 186.49 184.52 55.136 57.000 45.303 -348 "R12" 217.03 217.69 217.80 84.047 87.070 71.496 -349 "S12" 173.81 166.67 164.48 46.799 45.618 34.284 -350 "T12" 61.998 59.133 126.43 6.6921 6.0185 19.773 -351 "U12" 133.08 178.53 107.01 31.583 45.365 15.646 -352 "V12" 159.59 92.307 67.569 35.975 22.808 7.0470 -353 "W12" 92.823 93.091 102.67 15.632 16.004 15.333 -354 "X12" 153.31 79.910 48.385 32.188 19.569 3.7849 -355 "Y12" 76.169 77.765 152.48 9.9981 9.6287 28.171 -356 "Z12" 80.867 145.82 55.209 14.429 27.348 6.4901 -357 "2A12" 88.726 84.091 155.13 13.822 12.446 29.936 -358 "2B12" 201.37 208.14 195.53 68.261 74.431 52.067 -359 "2C12" 32.004 31.705 30.813 2.4685 2.5621 2.0287 -360 "2D12" 135.53 145.08 187.78 28.798 30.974 45.549 -361 "A13" 86.415 69.301 138.07 14.129 10.884 26.286 -362 "B13" 104.58 136.42 46.559 21.280 29.662 4.6515 -363 "C13" 147.82 79.114 100.32 32.064 17.966 13.604 -364 "D13" 75.334 85.157 157.26 9.9611 10.733 32.277 -365 "E13" 178.81 179.96 148.24 51.845 54.927 28.181 -366 "F13" 55.482 72.327 100.16 6.3441 8.5421 15.068 -367 "G13" 200.09 199.75 184.43 68.699 71.452 46.387 -368 "H13" 76.688 84.710 151.41 10.374 10.902 29.169 -369 "I13" 129.73 107.35 52.022 26.203 23.997 4.3858 -370 "J13" 119.03 160.66 198.42 25.753 36.554 54.373 -371 "K13" 56.473 50.032 106.16 5.9068 4.9157 15.287 -372 "L13" 153.18 106.56 46.936 35.348 27.270 4.1933 -373 "M13" 32.264 31.978 31.289 2.6154 2.7053 2.1626 -374 "N13" 66.470 66.520 66.246 9.3637 9.6843 7.8391 -375 "O13" 105.28 105.86 104.76 19.359 20.106 16.147 -376 "P13" 153.75 154.63 154.12 36.624 37.957 30.671 -377 "Q13" 192.03 192.25 191.27 59.859 61.861 49.702 -378 "R13" 221.68 221.89 221.96 89.957 93.025 75.604 -379 "S13" 104.20 75.856 145.33 17.613 12.665 26.369 -380 "T13" 121.87 124.18 72.370 22.969 25.114 7.7873 -381 "U13" 91.392 55.886 72.021 13.623 8.3610 7.6135 -382 "V13" 193.01 176.53 161.70 59.661 54.433 33.140 -383 "W13" 97.047 61.496 44.638 15.045 10.609 3.4373 -384 "X13" 124.18 171.27 172.48 26.676 39.190 37.659 -385 "Y13" 100.95 103.55 45.932 16.770 18.831 3.7976 -386 "Z13" 98.719 76.722 108.03 16.243 13.004 15.620 -387 "2A13" 193.99 204.68 205.71 62.079 69.145 59.254 -388 "2B13" 77.619 94.368 167.50 9.8300 11.508 34.315 -389 "2C13" 91.512 53.191 50.701 13.378 8.4024 4.1065 -390 "2D13" 76.609 104.98 135.45 11.706 16.228 24.708 -391 "A14" 129.84 79.131 147.61 27.260 17.709 28.446 -392 "B14" 74.731 86.884 158.53 10.007 11.116 33.309 -393 "C14" 178.45 194.65 198.02 55.170 63.826 56.969 -394 "D14" 122.80 65.789 71.805 22.474 12.791 7.8220 -395 "E14" 99.529 101.15 66.691 17.833 19.340 7.6068 -396 "F14" 133.73 68.160 43.803 25.508 15.387 3.5019 -397 "G14" 130.31 174.28 137.87 28.674 42.244 25.294 -398 "H14" 110.49 77.413 145.63 20.013 14.167 27.201 -399 "I14" 30.999 29.764 29.587 2.4079 2.4331 1.9867 -400 "J14" 120.14 114.13 178.99 23.527 21.066 41.374 -401 "K14" 128.29 64.544 74.117 23.203 12.509 8.0121 -402 "L14" 176.70 157.34 183.40 48.486 42.511 43.112 -403 "M14" 59.777 105.00 45.141 8.6031 15.926 4.6200 -404 "N14" 182.00 181.11 190.30 53.107 53.884 48.977 -405 "O14" 42.651 40.749 62.042 3.9836 3.7404 6.5852 -406 "P14" 151.32 150.31 182.91 35.517 35.068 43.001 -407 "Q14" 162.51 94.932 125.82 37.782 22.314 19.042 -408 "R14" 99.745 94.301 93.467 17.467 17.105 13.104 -409 "S14" 107.25 159.78 58.090 22.370 35.508 5.9931 -410 "T14" 128.01 72.369 117.84 23.886 13.985 16.868 -411 "U14" 107.76 101.18 90.766 19.591 19.252 12.172 -412 "V14" 204.14 190.16 48.644 63.345 63.812 5.6645 -413 "W14" 82.597 65.626 44.970 12.028 10.481 3.3856 -414 "X14" 166.39 166.20 175.82 42.635 43.420 39.912 -415 "Y14" 100.69 152.17 51.384 19.856 32.192 5.1431 -416 "Z14" 91.650 100.20 90.746 15.570 17.641 12.711 -417 "2A14" 143.62 91.243 162.04 29.733 19.495 31.105 -418 "2B14" 214.71 215.34 214.31 81.209 84.285 67.959 -419 "2C14" 101.32 87.875 161.74 16.972 13.897 32.504 -420 "2D14" 105.18 138.75 68.497 20.262 27.906 7.7177 -421 "A15" 124.84 68.758 114.78 24.922 14.319 17.652 -422 "B15" 99.929 150.22 167.53 20.394 32.266 39.177 -423 "C15" 121.25 165.78 57.133 28.847 42.042 6.3345 -424 "D15" 129.49 121.04 130.58 27.579 26.553 23.681 -425 "E15" 161.27 95.254 123.97 38.874 23.290 19.357 -426 "F15" 148.20 174.03 142.22 36.703 46.352 27.027 -427 "G15" 150.41 98.923 167.42 34.061 22.803 34.531 -428 "H15" 75.180 91.615 158.04 10.113 11.921 31.879 -429 "I15" 196.22 179.25 172.32 64.423 58.008 39.281 -430 "J15" 66.558 62.105 60.696 9.4542 9.1717 6.7120 -431 "K15" 174.25 177.65 112.40 48.073 52.062 16.154 -432 "L15" 116.33 112.29 162.02 22.225 20.657 33.169 -433 "M15" 133.68 171.46 73.038 32.410 43.840 8.6168 -434 "N15" 102.47 146.49 198.15 19.932 29.141 53.896 -435 "O15" 64.715 46.574 43.032 8.2354 6.1612 3.2448 -436 "P15" 105.91 159.08 164.78 21.186 33.689 34.860 -437 "Q15" 34.379 33.754 36.003 2.8839 2.9372 2.7235 -438 "R15" 102.62 61.271 119.89 16.647 10.677 18.389 -439 "S15" 159.62 86.224 48.021 35.874 22.454 3.7685 -440 "T15" 95.611 158.57 127.45 18.024 31.495 21.231 -441 "U15" 133.03 87.140 157.87 26.027 17.635 30.172 -442 "V15" 48.894 77.368 43.484 5.7623 9.6302 3.8733 -443 "W15" 182.54 191.20 178.40 53.522 58.991 41.376 -444 "X15" 126.00 95.308 166.74 23.991 17.693 34.060 -445 "Y15" 38.376 39.986 33.590 3.5595 3.8688 2.3978 -446 "Z15" 148.30 148.94 147.37 34.055 35.265 28.241 -447 "2A15" 146.55 75.055 68.429 29.379 16.826 7.3609 -448 "2B15" 71.706 70.645 144.63 9.2107 8.5579 25.691 -449 "2C15" 133.02 80.816 44.452 25.707 18.129 3.6532 -450 "2D15" 82.777 113.54 117.52 13.875 19.568 19.948 -451 "A16" 147.43 75.104 45.417 32.441 19.582 3.7464 -452 "B16" 162.22 145.05 108.87 43.738 40.362 16.554 -453 "C16" 43.273 69.681 61.261 4.9159 8.3065 7.2559 -454 "D16" 154.15 106.72 65.606 37.197 27.832 7.4910 -455 "E16" 149.19 148.83 193.98 36.691 35.876 51.695 -456 "F16" 157.80 111.38 47.573 38.836 30.036 4.3338 -457 "G16" 100.61 79.449 149.13 17.555 13.363 28.888 -458 "H16" 206.92 207.61 211.44 75.466 77.836 67.216 -459 "I16" 97.895 82.272 66.348 16.954 15.112 7.2992 -460 "J16" 172.80 178.46 82.595 47.072 52.200 10.669 -461 "K16" 183.90 191.17 190.75 55.962 60.759 50.287 -462 "L16" 75.048 76.021 151.02 10.165 9.7715 28.705 -463 "M16" 159.42 88.282 47.938 36.859 23.500 3.8297 -464 "N16" 133.24 176.09 150.50 29.735 43.076 29.229 -465 "O16" 59.749 48.251 40.198 7.3545 6.2503 2.9745 -466 "P16" 171.06 168.69 161.58 46.114 46.965 33.568 -467 "Q16" 53.260 54.841 37.700 6.2218 6.8107 2.7776 -468 "R16" 147.03 76.735 66.424 29.663 17.214 6.8286 -469 "S16" 63.206 78.809 107.93 8.0381 10.138 16.410 -470 "T16" 150.22 77.352 47.226 31.088 18.734 3.6263 -471 "U16" 97.824 159.49 134.64 18.911 32.215 23.899 -472 "V16" 133.39 81.567 151.23 26.145 16.883 27.363 -473 "W16" 155.32 82.024 48.477 33.705 20.761 3.7986 -474 "X16" 81.301 147.86 56.013 14.361 27.487 7.1744 -475 "Y16" 141.53 112.75 178.08 29.882 22.982 39.138 -476 "Z16" 31.556 30.196 30.075 2.4233 2.4412 1.9648 -477 "2A16" 166.04 149.78 129.15 42.519 39.188 21.270 -478 "2B16" 53.939 48.402 100.70 5.2349 4.4461 13.823 -479 "2C16" 152.96 83.435 68.500 32.492 19.465 7.0806 -480 "2D16" 141.97 181.00 131.63 33.454 46.863 22.481 -481 "A17" 93.002 152.57 112.99 18.355 31.722 19.048 -482 "B17" 48.562 44.595 81.595 4.8626 4.2833 10.526 -483 "C17" 155.24 137.12 108.13 39.631 36.092 16.781 -484 "D17" 37.723 54.820 48.270 3.8471 5.8319 4.8962 -485 "E17" 163.04 158.68 133.73 43.491 44.349 22.904 -486 "F17" 155.10 81.151 47.477 35.028 21.444 3.8305 -487 "G17" 119.76 108.26 175.73 23.826 20.302 40.464 -488 "H17" 155.83 188.69 108.40 44.211 56.679 16.435 -489 "I17" 54.125 49.417 43.252 6.5115 6.2807 3.6004 -490 "J17" 146.89 182.65 155.76 35.464 48.530 31.500 -491 "K17" 148.71 77.345 50.119 31.217 18.833 4.2081 -492 "L17" 53.925 41.854 39.291 6.1796 5.0138 3.0160 -493 "M17" 105.46 156.83 167.45 21.355 33.511 36.981 -494 "N17" 149.16 79.222 103.08 31.382 17.339 13.539 -495 "O17" 109.98 107.89 138.78 20.515 20.076 24.934 -496 "P17" 151.99 78.765 47.620 32.143 19.447 3.7592 -497 "Q17" 195.13 169.06 200.08 60.501 50.532 52.708 -498 "R17" 73.599 136.55 49.271 12.657 24.420 5.6873 -499 "S17" 37.757 33.718 34.938 3.4355 3.1639 2.5372 -500 "T17" 132.61 142.77 197.68 28.192 29.771 51.322 -501 "U17" 181.82 145.93 103.48 52.660 42.651 15.019 -502 "V17" 204.10 203.91 210.35 69.823 71.393 63.731 -503 "W17" 175.82 179.36 52.229 44.995 50.413 5.2421 -504 "X17" 155.69 156.50 143.88 37.401 38.967 26.702 -505 "Y17" 65.731 44.495 80.654 8.0339 5.5483 9.9052 -506 "Z17" 67.930 138.21 88.916 10.382 21.829 11.599 -507 "2A17" 156.40 87.866 68.881 34.325 21.131 7.2263 -508 "2B17" 68.870 68.990 41.254 9.1863 9.9839 3.1512 -509 "2C17" 209.60 202.66 207.60 75.534 73.388 61.922 -510 "2D17" 108.97 87.062 152.98 19.258 14.916 29.290 -511 "A18" 200.70 204.40 197.90 74.089 78.770 59.424 -512 "B18" 164.93 117.44 177.68 42.903 30.204 40.715 -513 "C18" 61.227 72.827 56.013 8.7363 10.837 6.0872 -514 "D18" 204.51 199.19 195.95 75.509 74.636 56.066 -515 "E18" 73.692 73.322 148.06 10.413 9.8011 28.727 -516 "F18" 68.313 128.24 45.392 11.836 22.861 5.4226 -517 "G18" 131.14 85.288 152.52 26.954 18.177 29.358 -518 "H18" 89.609 153.68 93.128 16.220 29.699 13.154 -519 "I18" 30.179 29.676 28.922 2.3647 2.3980 1.9090 -520 "J18" 208.65 210.69 209.48 77.786 81.283 65.463 -521 "K18" 88.863 70.346 63.498 14.363 11.898 6.7644 -522 "L18" 197.92 177.16 54.602 60.378 57.128 5.2726 -523 "M18" 143.55 91.470 162.00 30.554 20.123 31.743 -524 "N18" 121.99 131.52 122.44 24.748 27.645 20.451 -525 "O18" 172.04 115.00 91.328 44.929 31.003 12.389 -526 "P18" 81.187 74.923 148.64 11.881 10.425 27.990 -527 "Q18" 117.91 169.48 101.12 25.737 39.690 14.823 -528 "R18" 183.93 145.62 52.297 52.300 42.856 4.6545 -529 "S18" 55.452 105.38 65.438 7.2126 14.429 7.1944 -530 "T18" 211.11 208.92 210.90 77.679 78.425 65.193 -531 "U18" 177.41 124.39 134.00 47.084 32.209 22.319 -532 "V18" 53.506 90.891 78.889 6.6683 11.848 10.189 -533 "W18" 197.65 205.13 206.81 65.207 70.970 60.729 -534 "X18" 51.396 86.860 43.674 6.2806 11.330 4.1095 -535 "Y18" 193.58 175.18 113.92 60.571 56.044 16.070 -536 "Z18" 96.313 103.94 178.60 15.673 16.045 40.153 -537 "2A18" 168.53 106.08 128.73 41.178 25.901 19.845 -538 "2B18" 85.496 104.15 136.89 13.693 16.674 24.407 -539 "2C18" 208.09 210.26 179.31 74.223 78.952 41.733 -540 "2D18" 161.94 92.492 50.116 38.135 24.817 4.1395 -541 "A19" 156.71 112.54 101.12 39.239 29.094 15.479 -542 "B19" 42.513 58.501 40.536 4.7416 7.0454 3.4644 -543 "C19" 172.17 152.13 143.40 49.395 43.657 28.522 -544 "D19" 159.73 183.13 54.703 42.332 52.372 5.7052 -545 "E19" 119.21 105.48 95.518 24.242 22.424 14.026 -546 "F19" 30.235 29.764 29.269 2.4551 2.5226 2.0256 -547 "G19" 88.689 134.99 136.69 16.677 25.667 25.825 -548 "H19" 86.392 53.901 45.566 13.124 8.8453 3.5763 -549 "I19" 126.88 158.15 160.78 28.527 37.076 34.358 -550 "J19" 120.42 79.125 64.241 22.891 16.490 6.9749 -551 "K19" 108.34 160.80 164.56 22.666 35.279 35.631 -552 "L19" 49.327 39.952 38.592 5.4212 4.5484 2.9627 -553 "M19" 67.917 128.27 44.976 11.199 21.925 5.4425 -554 "N19" 127.84 62.080 45.945 22.708 12.897 3.6335 -555 "O19" 74.380 138.45 130.11 12.507 23.738 22.498 -556 "P19" 30.060 29.337 28.817 2.3442 2.3896 1.9267 -557 "Q19" 147.97 73.539 46.480 30.303 17.749 3.5777 -558 "R19" 75.153 76.608 151.15 10.104 9.7374 28.448 -559 "S19" 78.339 144.41 52.936 13.901 26.685 6.3873 -560 "T19" 31.312 30.556 30.767 2.4391 2.4780 2.0610 -561 "U19" 169.32 177.98 203.35 45.972 49.473 57.247 -562 "V19" 44.471 72.376 45.634 4.8275 8.3485 3.9886 -563 "W19" 199.02 205.39 55.979 63.154 70.855 7.5811 -564 "X19" 90.125 81.954 73.039 14.863 14.166 8.5770 -565 "Y19" 207.33 211.44 212.22 74.340 78.986 66.286 -566 "Z19" 182.95 126.85 175.69 49.996 33.344 36.894 -567 "2A19" 77.857 90.598 163.13 10.165 11.287 33.081 -568 "2B19" 202.16 204.23 49.052 62.642 69.515 6.2139 -569 "2C19" 162.94 96.440 68.740 38.429 24.741 7.3479 -570 "2D19" 83.952 84.116 160.97 12.944 12.283 32.608 -END_DATA diff --git a/scanin/CMP_Digital_Target-3.ti2 b/scanin/CMP_Digital_Target-3.ti2 deleted file mode 100644 index e4b15e9..0000000 --- a/scanin/CMP_Digital_Target-3.ti2 +++ /dev/null @@ -1,601 +0,0 @@ -CTI2 - -DESCRIPTOR "Argyll Calibration Target chart information 2 for Christopher Metarie Digital Target 3" -ORIGINATOR "Argyll printtarg" -CREATED "Wed Sep 12 00:02:26 2007" -KEYWORD "TARGET_INSTRUMENT" -TARGET_INSTRUMENT "GretagMacbeth i1 Pro" -KEYWORD "ACCURATE_EXPECTED_VALUES" -ACCURATE_EXPECTED_VALUES "true" -KEYWORD "COLOR_REP" -COLOR_REP "RGB" -KEYWORD "STEPS_IN_PASS" -STEPS_IN_PASS "30" -KEYWORD "PASSES_IN_STRIPS2" -PASSES_IN_STRIPS2 "19" -KEYWORD "STRIP_INDEX_PATTERN" -STRIP_INDEX_PATTERN "0-9,@-9,@-9;1-999" -KEYWORD "PATCH_INDEX_PATTERN" -PATCH_INDEX_PATTERN "A-Z, 2-9" -KEYWORD "INDEX_ORDER" -INDEX_ORDER "PATCH_THEN_STRIP" - -KEYWORD "SAMPLE_LOC" -NUMBER_OF_FIELDS 8 -BEGIN_DATA_FORMAT -SAMPLE_ID SAMPLE_LOC RGB_R RGB_G RGB_B XYZ_X XYZ_Y XYZ_Z -END_DATA_FORMAT - -NUMBER_OF_SETS 570 -BEGIN_DATA -1 "A1" 106.60 73.896 140.50 19.991 14.120 27.886 -2 "B1" 101.22 157.76 91.298 19.926 34.054 14.005 -3 "C1" 56.474 54.712 116.20 6.2319 5.6339 19.078 -4 "D1" 142.23 143.96 106.67 32.785 35.198 16.672 -5 "E1" 161.58 92.303 143.82 38.996 22.658 25.805 -6 "F1" 90.405 96.497 94.153 16.011 17.612 14.561 -7 "G1" 163.39 98.124 88.178 39.496 24.997 12.003 -8 "H1" 63.278 55.370 115.21 7.4905 6.2468 18.358 -9 "I1" 71.385 133.64 49.363 11.987 23.286 6.5928 -10 "J1" 97.757 75.383 143.28 16.591 12.444 27.331 -11 "K1" 194.49 193.52 200.39 63.038 64.179 58.403 -12 "L1" 43.729 37.037 36.612 4.3513 3.8393 2.7750 -13 "M1" 128.36 143.53 178.51 27.386 30.873 42.527 -14 "N1" 136.71 176.12 173.90 31.789 44.281 40.439 -15 "O1" 190.25 190.03 173.26 59.453 61.985 40.335 -16 "P1" 139.89 69.074 45.054 26.783 15.713 3.5833 -17 "Q1" 34.433 40.188 37.667 3.0238 3.6843 3.0876 -18 "R1" 87.362 153.04 89.833 15.462 28.885 12.776 -19 "S1" 124.79 84.048 151.84 23.694 16.421 29.352 -20 "T1" 201.42 206.76 79.283 65.900 73.381 11.377 -21 "U1" 59.875 104.70 93.370 8.3333 15.036 13.749 -22 "V1" 205.39 208.60 159.63 72.416 77.985 33.423 -23 "W1" 91.572 136.12 167.03 16.393 25.254 38.122 -24 "X1" 30.336 29.306 28.957 2.3144 2.3581 1.9303 -25 "Y1" 132.60 110.17 107.91 27.102 23.276 16.813 -26 "Z1" 32.956 33.215 31.185 2.6994 2.8850 2.2332 -27 "2A1" 70.282 129.32 46.946 10.757 20.588 4.8216 -28 "2B1" 159.00 173.65 202.91 40.765 45.919 58.857 -29 "2C1" 121.19 88.150 161.84 22.864 16.381 33.839 -30 "2D1" 136.59 101.50 125.83 28.289 21.404 20.483 -31 "A2" 75.414 80.525 150.43 10.412 10.567 30.978 -32 "B2" 128.64 63.027 42.872 24.139 14.085 3.5857 -33 "C2" 101.62 116.40 166.26 19.473 21.752 38.376 -34 "D2" 129.62 78.772 146.55 26.280 16.991 28.035 -35 "E2" 164.20 144.75 82.589 42.573 39.671 9.6556 -36 "F2" 96.904 110.83 179.21 17.113 18.705 43.690 -37 "G2" 157.24 84.071 46.359 35.850 22.548 3.8554 -38 "H2" 84.439 70.424 140.26 13.037 10.392 26.425 -39 "I2" 81.661 147.44 58.864 14.946 28.262 8.1825 -40 "J2" 35.433 35.856 32.072 3.1780 3.3914 2.3047 -41 "K2" 150.66 144.08 140.58 35.880 35.178 26.683 -42 "L2" 158.35 93.379 154.74 36.434 22.147 28.386 -43 "M2" 100.38 93.492 99.897 17.689 17.022 15.072 -44 "N2" 158.93 93.968 95.921 36.396 23.022 13.623 -45 "O2" 102.60 137.21 171.09 19.884 26.988 39.544 -46 "P2" 74.932 50.703 44.902 10.294 7.4271 3.4839 -47 "Q2" 115.12 165.78 166.70 24.415 37.008 36.288 -48 "R2" 157.97 92.663 150.58 36.078 21.682 26.898 -49 "S2" 83.913 88.787 161.27 12.232 12.247 33.412 -50 "T2" 72.772 133.20 48.154 12.486 23.920 5.4357 -51 "U2" 155.64 177.45 175.23 38.913 47.091 40.794 -52 "V2" 65.311 50.797 44.712 8.3779 6.8387 3.7119 -53 "W2" 30.304 29.389 28.630 2.3401 2.3804 1.9157 -54 "X2" 98.383 112.57 76.501 17.501 20.678 9.7225 -55 "Y2" 196.95 176.56 81.174 60.324 56.490 9.7029 -56 "Z2" 106.87 76.461 64.020 18.340 14.257 6.9452 -57 "2A2" 149.29 180.57 55.756 39.051 50.700 6.0515 -58 "2B2" 46.850 72.093 42.887 5.3134 8.7205 3.7883 -59 "2C2" 126.21 86.097 104.74 24.040 16.842 14.641 -60 "2D2" 68.443 138.05 59.668 10.963 22.720 8.1563 -61 "A3" 40.703 34.668 43.170 3.2215 2.8069 3.1344 -62 "B3" 140.80 177.61 130.47 35.703 49.122 24.276 -63 "C3" 71.422 72.467 144.63 9.6710 9.2674 28.141 -64 "D3" 157.83 159.05 109.87 39.368 42.329 16.693 -65 "E3" 74.511 78.412 148.91 9.8448 9.8037 29.501 -66 "F3" 172.35 192.98 167.60 50.040 60.997 38.371 -67 "G3" 72.505 72.322 146.66 9.8731 9.2375 28.216 -68 "H3" 132.85 167.63 50.020 31.926 43.409 5.2962 -69 "I3" 99.822 132.27 193.48 18.889 24.530 52.235 -70 "J3" 158.78 88.817 87.144 36.271 22.167 11.952 -71 "K3" 146.32 156.61 192.38 34.281 37.060 50.573 -72 "L3" 30.978 30.641 29.826 2.4511 2.5353 2.0398 -73 "M3" 146.27 153.30 150.57 34.120 37.136 30.510 -74 "N3" 144.16 70.919 46.534 28.309 16.461 3.7229 -75 "O3" 85.091 72.947 144.27 12.851 10.508 27.052 -76 "P3" 122.91 131.12 67.881 24.532 27.910 7.4170 -77 "Q3" 140.27 116.77 178.48 29.800 23.719 40.761 -78 "R3" 73.020 103.31 46.082 11.420 17.249 4.2060 -79 "S3" 148.58 74.828 46.145 30.098 17.923 3.6411 -80 "T3" 92.676 106.61 179.17 15.102 16.455 41.548 -81 "U3" 89.067 149.36 56.522 16.816 29.880 6.2892 -82 "V3" 104.27 103.98 177.68 19.054 17.886 40.635 -83 "W3" 122.27 64.970 44.965 21.160 13.146 3.6418 -84 "X3" 190.80 157.08 167.65 56.827 44.647 36.033 -85 "Y3" 55.033 94.759 44.077 7.3224 13.350 4.3645 -86 "Z3" 157.08 85.576 87.558 34.447 20.515 11.595 -87 "2A3" 79.250 88.578 159.52 10.795 11.448 32.464 -88 "2B3" 108.15 127.71 55.172 20.617 25.691 5.5795 -89 "2C3" 78.102 75.847 150.05 11.126 10.174 28.914 -90 "2D3" 202.83 194.20 199.16 68.724 66.102 56.410 -91 "A4" 105.09 86.729 157.14 19.671 15.554 33.919 -92 "B4" 99.696 102.26 43.923 17.501 19.753 3.8498 -93 "C4" 107.26 130.81 190.72 21.509 25.734 51.674 -94 "D4" 178.30 141.51 75.719 51.958 42.451 9.1213 -95 "E4" 86.201 111.97 176.39 14.112 17.806 42.697 -96 "F4" 192.41 193.92 143.50 61.487 65.884 27.427 -97 "G4" 161.20 95.317 155.94 38.420 23.239 29.457 -98 "H4" 74.863 77.945 149.59 9.8759 9.7311 29.126 -99 "I4" 207.61 208.23 184.16 75.793 79.718 46.695 -100 "J4" 70.931 101.90 131.71 10.595 15.480 24.653 -101 "K4" 147.01 94.545 162.80 32.187 21.331 32.814 -102 "L4" 81.586 103.83 104.84 13.777 17.753 16.663 -103 "M4" 141.06 69.848 45.247 27.339 16.027 3.5603 -104 "N4" 90.494 151.07 150.65 16.922 28.995 29.336 -105 "O4" 55.294 41.016 63.313 6.3066 4.7610 6.9921 -106 "P4" 111.84 140.47 103.22 22.390 29.210 15.592 -107 "Q4" 144.45 93.249 162.31 30.657 20.369 32.268 -108 "R4" 105.31 104.82 101.31 19.152 19.807 15.592 -109 "S4" 79.325 137.68 48.973 13.948 25.671 5.2122 -110 "T4" 84.189 150.82 120.01 14.991 27.898 19.745 -111 "U4" 81.413 52.379 93.432 11.486 7.6381 12.484 -112 "V4" 76.459 77.531 42.048 10.749 11.899 3.2945 -113 "W4" 211.28 212.44 213.00 77.699 80.782 67.995 -114 "X4" 125.79 102.06 67.469 24.430 21.610 7.1800 -115 "Y4" 36.736 36.340 46.306 3.2104 3.1999 4.2513 -116 "Z4" 83.114 150.29 61.891 14.450 27.763 8.5197 -117 "2A4" 117.71 90.574 160.37 21.679 16.235 32.574 -118 "2B4" 89.463 153.87 72.494 15.737 29.267 10.078 -119 "2C4" 42.498 47.832 65.570 3.9226 4.4418 7.5674 -120 "2D4" 115.91 156.34 101.73 24.022 34.375 15.022 -121 "A5" 100.43 57.576 43.875 16.920 10.945 3.6233 -122 "B5" 139.57 140.52 191.37 32.876 32.373 51.547 -123 "C5" 106.24 157.82 63.346 23.454 37.144 7.5202 -124 "D5" 120.63 119.68 128.56 24.762 25.266 23.702 -125 "E5" 144.32 70.530 44.643 29.192 16.958 3.5359 -126 "F5" 112.12 164.88 139.23 23.640 37.186 26.447 -127 "G5" 103.37 136.87 47.413 20.387 28.842 4.7028 -128 "H5" 36.251 41.780 35.395 3.3636 4.0809 2.6833 -129 "I5" 111.24 162.80 164.26 23.272 35.820 35.198 -130 "J5" 143.56 87.562 156.55 30.642 19.573 30.103 -131 "K5" 109.54 163.06 164.19 22.753 35.416 35.064 -132 "L5" 79.627 52.133 45.354 11.209 7.8786 3.5144 -133 "M5" 92.456 152.33 153.19 17.513 29.721 30.234 -134 "N5" 34.714 33.013 32.281 2.9935 2.9559 2.2837 -135 "O5" 166.35 175.94 163.99 44.139 49.035 35.423 -136 "P5" 89.669 79.549 47.144 14.200 13.959 3.6761 -137 "Q5" 191.24 182.85 188.48 59.021 56.831 48.262 -138 "R5" 51.675 70.899 41.770 6.3401 9.2262 3.4989 -139 "S5" 170.53 177.54 173.76 45.700 49.818 40.124 -140 "T5" 63.890 93.942 45.687 9.3142 14.437 4.0636 -141 "U5" 30.168 29.299 28.940 2.3535 2.3975 1.9290 -142 "V5" 133.08 133.14 122.05 27.766 28.925 20.091 -143 "W5" 36.054 32.923 33.276 3.0887 2.9300 2.3596 -144 "X5" 61.314 111.77 45.755 8.7239 16.803 5.0276 -145 "Y5" 203.39 209.40 208.06 70.161 75.882 63.247 -146 "Z5" 76.353 77.670 109.77 11.191 11.244 16.654 -147 "2A5" 193.86 202.18 186.73 62.394 68.771 47.096 -148 "2B5" 84.630 73.965 145.61 12.640 10.459 27.333 -149 "2C5" 68.392 129.05 45.336 11.160 21.761 5.5099 -150 "2D5" 210.46 210.49 195.89 77.413 80.592 53.936 -151 "A6" 156.79 90.614 148.03 37.703 22.453 27.499 -152 "B6" 88.481 111.82 178.46 14.943 18.301 44.058 -153 "C6" 167.90 108.82 66.983 44.282 30.956 7.9185 -154 "D6" 66.578 110.85 54.360 10.440 18.144 6.5076 -155 "E6" 148.31 87.735 154.80 32.892 20.486 29.274 -156 "F6" 93.611 155.13 115.73 17.819 31.263 19.184 -157 "G6" 40.190 39.280 58.763 3.7468 3.6058 6.3752 -158 "H6" 170.89 152.59 147.19 45.907 41.132 28.818 -159 "I6" 46.469 44.545 75.326 4.4472 4.1158 9.1204 -160 "J6" 102.48 151.18 180.03 20.388 31.549 44.358 -161 "K6" 30.872 30.164 29.516 2.3970 2.4515 1.9961 -162 "L6" 83.294 137.00 98.315 14.323 24.343 14.536 -163 "M6" 30.722 30.150 29.446 2.3623 2.4293 1.9541 -164 "N6" 163.74 151.67 194.83 41.190 36.767 50.714 -165 "O6" 199.83 203.65 49.970 62.357 69.847 6.3069 -166 "P6" 77.512 86.873 159.07 10.124 10.811 31.915 -167 "Q6" 200.99 194.31 190.45 67.127 65.762 49.352 -168 "R6" 165.39 100.99 154.68 39.128 23.959 27.822 -169 "S6" 69.496 98.026 61.986 10.413 15.222 6.7952 -170 "T6" 167.68 124.93 146.98 41.195 30.074 26.292 -171 "U6" 62.706 68.483 60.211 8.4099 9.5591 6.5834 -172 "V6" 174.63 108.06 166.14 43.942 26.976 32.439 -173 "W6" 138.60 174.02 106.27 33.397 44.263 15.513 -174 "X6" 192.12 161.59 197.05 56.629 45.672 50.137 -175 "Y6" 71.207 70.503 63.173 10.198 10.583 6.9283 -176 "Z6" 171.42 121.85 182.26 42.782 29.822 40.386 -177 "2A6" 193.77 197.98 207.14 61.567 65.013 61.274 -178 "2B6" 117.80 82.965 151.94 21.335 15.115 28.916 -179 "2C6" 36.305 39.517 34.462 3.2203 3.7212 2.6005 -180 "2D6" 152.48 145.44 148.89 35.799 34.854 29.422 -181 "A7" 93.637 153.35 73.710 19.123 33.078 10.667 -182 "B7" 83.277 73.755 144.52 12.915 10.831 28.225 -183 "C7" 206.85 206.70 197.33 77.518 80.587 57.622 -184 "D7" 77.454 73.349 146.72 11.348 10.154 28.703 -185 "E7" 70.809 132.64 47.023 12.442 24.254 5.6475 -186 "F7" 91.049 88.345 163.10 15.345 13.969 34.910 -187 "G7" 177.87 190.87 53.018 52.703 61.988 5.9513 -188 "H7" 75.960 87.720 159.98 9.9056 10.888 32.881 -189 "I7" 199.48 192.77 181.55 67.471 66.483 44.705 -190 "J7" 64.713 68.090 67.610 8.8426 9.6268 8.1730 -191 "K7" 193.08 175.48 139.54 61.925 56.855 24.968 -192 "L7" 75.430 87.876 159.79 9.6349 10.726 32.427 -193 "M7" 133.24 173.17 56.742 32.435 45.157 6.1480 -194 "N7" 148.49 75.098 46.216 30.427 18.146 3.6270 -195 "O7" 97.134 97.177 86.559 16.928 17.695 11.911 -196 "P7" 191.20 160.30 54.685 56.094 48.894 4.9467 -197 "Q7" 80.068 80.251 125.32 11.934 11.778 20.573 -198 "R7" 83.368 147.19 55.358 15.285 28.434 6.3346 -199 "S7" 37.747 44.719 36.907 3.5054 4.3615 2.7830 -200 "T7" 146.52 175.26 205.50 35.099 44.589 58.771 -201 "U7" 133.97 82.941 152.98 26.155 17.005 28.079 -202 "V7" 63.182 103.22 97.125 8.9086 14.924 14.071 -203 "W7" 144.22 147.07 76.384 30.611 33.536 8.6858 -204 "X7" 212.78 213.19 211.89 79.113 81.784 66.503 -205 "Y7" 77.896 86.298 158.37 10.240 10.764 31.229 -206 "Z7" 71.313 133.52 47.389 11.976 23.218 5.4228 -207 "2A7" 75.926 78.650 151.98 9.9976 9.7574 28.929 -208 "2B7" 118.08 168.98 98.781 25.572 39.297 14.262 -209 "2C7" 207.34 198.34 43.623 66.257 69.908 5.8960 -210 "2D7" 92.639 108.26 179.66 14.893 16.603 41.626 -211 "A8" 69.904 137.36 58.325 12.100 24.359 8.4071 -212 "B8" 167.09 144.55 49.599 42.436 39.900 4.7260 -213 "C8" 111.10 78.672 121.83 20.574 15.216 20.136 -214 "D8" 74.340 141.34 56.829 12.701 25.255 8.1803 -215 "E8" 104.13 74.055 141.65 18.324 13.039 26.409 -216 "F8" 90.075 154.61 90.911 16.724 30.035 13.212 -217 "G8" 36.341 33.896 36.868 3.3200 3.1831 3.0291 -218 "H8" 101.65 159.66 134.07 20.304 33.570 24.443 -219 "I8" 34.216 33.499 37.712 2.9169 2.9009 3.0168 -220 "J8" 174.41 165.56 173.38 48.038 46.099 39.891 -221 "K8" 46.252 66.300 42.397 5.2241 8.0427 3.5985 -222 "L8" 152.69 184.12 182.69 38.619 50.368 44.407 -223 "M8" 30.240 29.863 28.939 2.3428 2.3959 1.9273 -224 "N8" 35.593 35.467 34.190 3.1956 3.3116 2.6415 -225 "O8" 71.728 71.553 70.937 10.494 10.847 8.8081 -226 "P8" 115.92 116.10 114.68 22.233 23.005 18.548 -227 "Q8" 159.85 160.38 159.13 39.317 40.778 33.056 -228 "R8" 196.60 197.21 197.12 63.147 65.480 53.862 -229 "S8" 137.57 112.53 140.33 28.252 23.514 24.400 -230 "T8" 80.940 142.13 50.952 14.520 26.909 5.4756 -231 "U8" 99.365 133.93 196.43 18.057 24.054 51.817 -232 "V8" 30.957 30.566 29.813 2.3402 2.3911 1.9209 -233 "W8" 212.09 210.69 210.55 77.838 79.255 64.883 -234 "X8" 90.920 71.799 46.751 14.232 12.342 3.5677 -235 "Y8" 137.72 177.30 175.40 31.451 43.594 39.472 -236 "Z8" 39.524 49.911 38.685 3.8429 5.0881 3.0661 -237 "2A8" 130.39 176.13 127.05 27.844 41.491 21.140 -238 "2B8" 31.904 31.437 30.690 2.4921 2.5648 2.0613 -239 "2C8" 149.77 158.18 196.00 34.635 36.777 50.964 -240 "2D8" 30.719 29.824 29.600 2.3436 2.3905 1.9440 -241 "A9" 160.64 188.72 135.75 46.811 59.109 25.406 -242 "B9" 151.09 113.48 161.82 35.695 26.905 33.928 -243 "C9" 56.378 101.12 44.028 8.0578 15.313 4.8058 -244 "D9" 200.86 192.61 183.06 70.562 68.540 46.575 -245 "E9" 77.639 89.149 161.20 10.633 11.656 33.787 -246 "F9" 183.43 148.52 132.23 54.113 43.360 23.933 -247 "G9" 53.868 83.869 77.703 7.1200 11.358 10.328 -248 "H9" 144.68 93.693 163.06 31.237 20.786 32.756 -249 "I9" 80.625 147.05 117.46 14.469 27.174 19.553 -250 "J9" 82.612 53.093 45.342 11.813 8.1727 3.4750 -251 "K9" 179.05 178.11 205.03 51.613 51.265 59.093 -252 "L9" 68.256 128.21 45.397 11.232 21.889 5.3482 -253 "M9" 30.122 29.559 28.786 2.3389 2.3932 1.9205 -254 "N9" 44.132 44.030 43.113 4.6543 4.8363 3.9004 -255 "O9" 77.603 77.496 77.212 11.973 12.444 10.082 -256 "P9" 123.38 123.35 123.35 24.548 25.410 20.720 -257 "Q9" 167.61 168.12 167.11 43.270 44.842 36.215 -258 "R9" 202.61 204.17 205.53 68.113 71.034 59.864 -259 "S9" 152.34 81.269 59.657 31.468 18.903 5.4734 -260 "T9" 36.525 39.233 37.120 3.2297 3.6435 2.9170 -261 "U9" 147.79 112.59 105.57 31.779 25.042 15.321 -262 "V9" 128.85 175.42 85.449 30.098 43.673 10.856 -263 "W9" 202.12 182.11 203.04 65.360 57.273 55.175 -264 "X9" 58.841 111.22 46.014 7.8261 15.682 5.0934 -265 "Y9" 150.27 74.574 46.780 30.151 17.603 3.5424 -266 "Z9" 91.373 72.814 142.15 14.169 10.872 25.545 -267 "2A9" 178.42 178.87 165.68 49.740 51.961 35.295 -268 "2B9" 110.21 82.066 150.83 19.293 14.167 28.533 -269 "2C9" 115.57 141.00 82.227 23.305 29.469 10.465 -270 "2D9" 120.44 87.308 156.62 22.420 16.254 30.792 -271 "A10" 54.278 98.104 59.100 7.4766 14.316 6.7672 -272 "B10" 141.49 142.92 50.130 30.693 34.185 4.8132 -273 "C10" 69.545 135.98 93.417 11.568 23.235 13.773 -274 "D10" 30.772 30.009 29.471 2.4307 2.4999 2.0171 -275 "E10" 140.52 89.479 159.03 30.140 19.949 31.751 -276 "F10" 88.149 135.62 165.23 15.810 25.353 37.521 -277 "G10" 30.508 30.075 29.389 2.4272 2.4936 1.9887 -278 "H10" 75.794 144.13 86.030 12.549 25.096 11.562 -279 "I10" 29.881 29.286 28.915 2.3402 2.3788 1.9223 -280 "J10" 78.427 139.08 135.09 13.387 24.235 23.958 -281 "K10" 127.69 103.24 52.122 25.478 22.853 4.3681 -282 "L10" 47.518 38.484 37.887 5.0366 4.2550 2.8902 -283 "M10" 30.202 29.466 28.978 2.3374 2.3915 1.9194 -284 "N10" 50.671 50.438 49.901 5.8942 6.1054 4.9143 -285 "O10" 84.087 84.218 84.130 13.462 14.013 11.428 -286 "P10" 130.92 131.27 131.19 27.055 28.014 23.007 -287 "Q10" 174.24 174.94 173.31 47.406 49.169 39.386 -288 "R10" 208.46 209.75 212.17 73.974 77.043 65.729 -289 "S10" 61.440 61.759 68.112 7.8358 8.0794 7.9176 -290 "T10" 189.59 154.63 195.61 54.395 42.563 48.165 -291 "U10" 70.065 139.76 58.155 11.113 22.841 7.7084 -292 "V10" 34.382 38.877 37.374 2.9394 3.4387 2.9247 -293 "W10" 81.185 148.91 88.683 13.284 25.973 11.867 -294 "X10" 31.337 30.706 30.647 2.4768 2.5120 2.1182 -295 "Y10" 132.10 124.54 122.36 27.102 26.481 19.829 -296 "Z10" 128.86 77.259 44.848 23.978 16.698 3.6586 -297 "2A10" 121.07 144.71 145.24 24.659 30.178 27.108 -298 "2B10" 91.404 54.498 76.524 13.618 8.1445 8.4106 -299 "2C10" 122.45 129.19 129.52 24.412 26.496 22.533 -300 "2D10" 52.091 43.712 85.349 5.2897 4.2252 10.803 -301 "A11" 95.121 56.945 109.13 15.662 9.9371 16.757 -302 "B11" 49.247 84.978 41.595 6.3528 11.756 4.1276 -303 "C11" 201.38 188.28 201.57 70.247 65.054 58.834 -304 "D11" 165.99 106.71 48.883 42.904 30.283 4.3741 -305 "E11" 142.45 151.87 140.77 33.675 37.292 27.259 -306 "F11" 59.895 43.373 70.686 7.3260 5.3398 8.4321 -307 "G11" 185.60 179.80 175.52 56.748 56.026 41.441 -308 "H11" 62.810 62.001 39.464 8.1585 8.7147 3.0001 -309 "I11" 182.38 181.99 177.01 54.512 56.195 42.466 -310 "J11" 44.613 62.579 56.523 4.9736 7.2275 6.1574 -311 "K11" 177.26 171.26 154.02 50.413 50.352 29.675 -312 "L11" 81.706 58.921 119.57 11.783 8.3671 18.993 -313 "M11" 30.648 29.769 29.464 2.4004 2.4632 1.9865 -314 "N11" 56.534 56.324 55.689 7.0502 7.2979 5.9348 -315 "O11" 89.911 89.936 88.980 15.157 15.663 12.643 -316 "P11" 140.77 141.41 140.88 30.809 31.935 26.037 -317 "Q11" 179.84 180.21 178.58 51.029 52.827 42.179 -318 "R11" 212.60 213.84 215.53 78.892 82.077 69.152 -319 "S11" 66.493 66.184 65.558 9.0391 9.3614 7.5795 -320 "T11" 187.32 160.61 146.99 54.688 46.067 27.270 -321 "U11" 59.842 44.929 41.517 7.0672 5.5203 3.1542 -322 "V11" 100.71 151.70 177.40 19.018 30.251 40.808 -323 "W11" 32.433 32.983 31.555 2.6438 2.7813 2.1741 -324 "X11" 103.41 161.56 150.03 20.294 33.254 28.954 -325 "Y11" 49.930 46.756 84.028 4.7917 4.3367 10.461 -326 "Z11" 157.24 187.57 185.20 39.678 51.335 44.730 -327 "2A11" 69.840 130.51 46.639 11.397 22.075 5.4606 -328 "2B11" 164.73 190.77 189.92 43.396 54.386 47.692 -329 "2C11" 67.660 57.565 50.639 9.0264 8.0855 4.5632 -330 "2D11" 146.88 73.255 46.894 29.263 17.239 3.6542 -331 "A12" 149.18 183.06 84.464 42.435 55.238 11.960 -332 "B12" 72.446 71.794 146.17 10.244 9.5241 28.550 -333 "C12" 111.58 163.80 82.344 25.557 39.490 11.397 -334 "D12" 67.115 62.023 67.669 9.5983 9.1448 8.3283 -335 "E12" 202.25 206.59 144.16 71.285 77.444 27.463 -336 "F12" 142.52 142.52 149.46 32.592 33.399 30.058 -337 "G12" 52.218 46.843 96.005 5.1430 4.3541 13.182 -338 "H12" 95.301 157.62 128.66 18.517 32.087 22.562 -339 "I12" 58.804 42.199 45.333 6.9977 5.1440 3.8014 -340 "J12" 201.67 207.01 112.57 69.246 76.042 17.844 -341 "K12" 76.878 56.433 113.86 10.642 7.6407 17.593 -342 "L12" 110.43 164.87 121.89 21.927 35.477 19.681 -343 "M12" 31.073 30.502 29.828 2.4287 2.4921 1.9949 -344 "N12" 60.863 60.999 60.221 7.9937 8.3172 6.7360 -345 "O12" 97.436 97.414 96.425 17.120 17.761 14.285 -346 "P12" 146.96 147.76 147.68 33.242 34.486 28.221 -347 "Q12" 186.04 186.49 184.52 55.136 57.000 45.303 -348 "R12" 217.03 217.69 217.80 84.047 87.070 71.496 -349 "S12" 173.81 166.67 164.48 46.799 45.618 34.284 -350 "T12" 61.998 59.133 126.43 6.6921 6.0185 19.773 -351 "U12" 133.08 178.53 107.01 31.583 45.365 15.646 -352 "V12" 159.59 92.307 67.569 35.975 22.808 7.0470 -353 "W12" 92.823 93.091 102.67 15.632 16.004 15.333 -354 "X12" 153.31 79.910 48.385 32.188 19.569 3.7849 -355 "Y12" 76.169 77.765 152.48 9.9981 9.6287 28.171 -356 "Z12" 80.867 145.82 55.209 14.429 27.348 6.4901 -357 "2A12" 88.726 84.091 155.13 13.822 12.446 29.936 -358 "2B12" 201.37 208.14 195.53 68.261 74.431 52.067 -359 "2C12" 32.004 31.705 30.813 2.4685 2.5621 2.0287 -360 "2D12" 135.53 145.08 187.78 28.798 30.974 45.549 -361 "A13" 86.415 69.301 138.07 14.129 10.884 26.286 -362 "B13" 104.58 136.42 46.559 21.280 29.662 4.6515 -363 "C13" 147.82 79.114 100.32 32.064 17.966 13.604 -364 "D13" 75.334 85.157 157.26 9.9611 10.733 32.277 -365 "E13" 178.81 179.96 148.24 51.845 54.927 28.181 -366 "F13" 55.482 72.327 100.16 6.3441 8.5421 15.068 -367 "G13" 200.09 199.75 184.43 68.699 71.452 46.387 -368 "H13" 76.688 84.710 151.41 10.374 10.902 29.169 -369 "I13" 129.73 107.35 52.022 26.203 23.997 4.3858 -370 "J13" 119.03 160.66 198.42 25.753 36.554 54.373 -371 "K13" 56.473 50.032 106.16 5.9068 4.9157 15.287 -372 "L13" 153.18 106.56 46.936 35.348 27.270 4.1933 -373 "M13" 32.264 31.978 31.289 2.6154 2.7053 2.1626 -374 "N13" 66.470 66.520 66.246 9.3637 9.6843 7.8391 -375 "O13" 105.28 105.86 104.76 19.359 20.106 16.147 -376 "P13" 153.75 154.63 154.12 36.624 37.957 30.671 -377 "Q13" 192.03 192.25 191.27 59.859 61.861 49.702 -378 "R13" 221.68 221.89 221.96 89.957 93.025 75.604 -379 "S13" 104.20 75.856 145.33 17.613 12.665 26.369 -380 "T13" 121.87 124.18 72.370 22.969 25.114 7.7873 -381 "U13" 91.392 55.886 72.021 13.623 8.3610 7.6135 -382 "V13" 193.01 176.53 161.70 59.661 54.433 33.140 -383 "W13" 97.047 61.496 44.638 15.045 10.609 3.4373 -384 "X13" 124.18 171.27 172.48 26.676 39.190 37.659 -385 "Y13" 100.95 103.55 45.932 16.770 18.831 3.7976 -386 "Z13" 98.719 76.722 108.03 16.243 13.004 15.620 -387 "2A13" 193.99 204.68 205.71 62.079 69.145 59.254 -388 "2B13" 77.619 94.368 167.50 9.8300 11.508 34.315 -389 "2C13" 91.512 53.191 50.701 13.378 8.4024 4.1065 -390 "2D13" 76.609 104.98 135.45 11.706 16.228 24.708 -391 "A14" 129.84 79.131 147.61 27.260 17.709 28.446 -392 "B14" 74.731 86.884 158.53 10.007 11.116 33.309 -393 "C14" 178.45 194.65 198.02 55.170 63.826 56.969 -394 "D14" 122.80 65.789 71.805 22.474 12.791 7.8220 -395 "E14" 99.529 101.15 66.691 17.833 19.340 7.6068 -396 "F14" 133.73 68.160 43.803 25.508 15.387 3.5019 -397 "G14" 130.31 174.28 137.87 28.674 42.244 25.294 -398 "H14" 110.49 77.413 145.63 20.013 14.167 27.201 -399 "I14" 30.999 29.764 29.587 2.4079 2.4331 1.9867 -400 "J14" 120.14 114.13 178.99 23.527 21.066 41.374 -401 "K14" 128.29 64.544 74.117 23.203 12.509 8.0121 -402 "L14" 176.70 157.34 183.40 48.486 42.511 43.112 -403 "M14" 59.777 105.00 45.141 8.6031 15.926 4.6200 -404 "N14" 182.00 181.11 190.30 53.107 53.884 48.977 -405 "O14" 42.651 40.749 62.042 3.9836 3.7404 6.5852 -406 "P14" 151.32 150.31 182.91 35.517 35.068 43.001 -407 "Q14" 162.51 94.932 125.82 37.782 22.314 19.042 -408 "R14" 99.745 94.301 93.467 17.467 17.105 13.104 -409 "S14" 107.25 159.78 58.090 22.370 35.508 5.9931 -410 "T14" 128.01 72.369 117.84 23.886 13.985 16.868 -411 "U14" 107.76 101.18 90.766 19.591 19.252 12.172 -412 "V14" 204.14 190.16 48.644 63.345 63.812 5.6645 -413 "W14" 82.597 65.626 44.970 12.028 10.481 3.3856 -414 "X14" 166.39 166.20 175.82 42.635 43.420 39.912 -415 "Y14" 100.69 152.17 51.384 19.856 32.192 5.1431 -416 "Z14" 91.650 100.20 90.746 15.570 17.641 12.711 -417 "2A14" 143.62 91.243 162.04 29.733 19.495 31.105 -418 "2B14" 214.71 215.34 214.31 81.209 84.285 67.959 -419 "2C14" 101.32 87.875 161.74 16.972 13.897 32.504 -420 "2D14" 105.18 138.75 68.497 20.262 27.906 7.7177 -421 "A15" 124.84 68.758 114.78 24.922 14.319 17.652 -422 "B15" 99.929 150.22 167.53 20.394 32.266 39.177 -423 "C15" 121.25 165.78 57.133 28.847 42.042 6.3345 -424 "D15" 129.49 121.04 130.58 27.579 26.553 23.681 -425 "E15" 161.27 95.254 123.97 38.874 23.290 19.357 -426 "F15" 148.20 174.03 142.22 36.703 46.352 27.027 -427 "G15" 150.41 98.923 167.42 34.061 22.803 34.531 -428 "H15" 75.180 91.615 158.04 10.113 11.921 31.879 -429 "I15" 196.22 179.25 172.32 64.423 58.008 39.281 -430 "J15" 66.558 62.105 60.696 9.4542 9.1717 6.7120 -431 "K15" 174.25 177.65 112.40 48.073 52.062 16.154 -432 "L15" 116.33 112.29 162.02 22.225 20.657 33.169 -433 "M15" 133.68 171.46 73.038 32.410 43.840 8.6168 -434 "N15" 102.47 146.49 198.15 19.932 29.141 53.896 -435 "O15" 64.715 46.574 43.032 8.2354 6.1612 3.2448 -436 "P15" 105.91 159.08 164.78 21.186 33.689 34.860 -437 "Q15" 34.379 33.754 36.003 2.8839 2.9372 2.7235 -438 "R15" 102.62 61.271 119.89 16.647 10.677 18.389 -439 "S15" 159.62 86.224 48.021 35.874 22.454 3.7685 -440 "T15" 95.611 158.57 127.45 18.024 31.495 21.231 -441 "U15" 133.03 87.140 157.87 26.027 17.635 30.172 -442 "V15" 48.894 77.368 43.484 5.7623 9.6302 3.8733 -443 "W15" 182.54 191.20 178.40 53.522 58.991 41.376 -444 "X15" 126.00 95.308 166.74 23.991 17.693 34.060 -445 "Y15" 38.376 39.986 33.590 3.5595 3.8688 2.3978 -446 "Z15" 148.30 148.94 147.37 34.055 35.265 28.241 -447 "2A15" 146.55 75.055 68.429 29.379 16.826 7.3609 -448 "2B15" 71.706 70.645 144.63 9.2107 8.5579 25.691 -449 "2C15" 133.02 80.816 44.452 25.707 18.129 3.6532 -450 "2D15" 82.777 113.54 117.52 13.875 19.568 19.948 -451 "A16" 147.43 75.104 45.417 32.441 19.582 3.7464 -452 "B16" 162.22 145.05 108.87 43.738 40.362 16.554 -453 "C16" 43.273 69.681 61.261 4.9159 8.3065 7.2559 -454 "D16" 154.15 106.72 65.606 37.197 27.832 7.4910 -455 "E16" 149.19 148.83 193.98 36.691 35.876 51.695 -456 "F16" 157.80 111.38 47.573 38.836 30.036 4.3338 -457 "G16" 100.61 79.449 149.13 17.555 13.363 28.888 -458 "H16" 206.92 207.61 211.44 75.466 77.836 67.216 -459 "I16" 97.895 82.272 66.348 16.954 15.112 7.2992 -460 "J16" 172.80 178.46 82.595 47.072 52.200 10.669 -461 "K16" 183.90 191.17 190.75 55.962 60.759 50.287 -462 "L16" 75.048 76.021 151.02 10.165 9.7715 28.705 -463 "M16" 159.42 88.282 47.938 36.859 23.500 3.8297 -464 "N16" 133.24 176.09 150.50 29.735 43.076 29.229 -465 "O16" 59.749 48.251 40.198 7.3545 6.2503 2.9745 -466 "P16" 171.06 168.69 161.58 46.114 46.965 33.568 -467 "Q16" 53.260 54.841 37.700 6.2218 6.8107 2.7776 -468 "R16" 147.03 76.735 66.424 29.663 17.214 6.8286 -469 "S16" 63.206 78.809 107.93 8.0381 10.138 16.410 -470 "T16" 150.22 77.352 47.226 31.088 18.734 3.6263 -471 "U16" 97.824 159.49 134.64 18.911 32.215 23.899 -472 "V16" 133.39 81.567 151.23 26.145 16.883 27.363 -473 "W16" 155.32 82.024 48.477 33.705 20.761 3.7986 -474 "X16" 81.301 147.86 56.013 14.361 27.487 7.1744 -475 "Y16" 141.53 112.75 178.08 29.882 22.982 39.138 -476 "Z16" 31.556 30.196 30.075 2.4233 2.4412 1.9648 -477 "2A16" 166.04 149.78 129.15 42.519 39.188 21.270 -478 "2B16" 53.939 48.402 100.70 5.2349 4.4461 13.823 -479 "2C16" 152.96 83.435 68.500 32.492 19.465 7.0806 -480 "2D16" 141.97 181.00 131.63 33.454 46.863 22.481 -481 "A17" 93.002 152.57 112.99 18.355 31.722 19.048 -482 "B17" 48.562 44.595 81.595 4.8626 4.2833 10.526 -483 "C17" 155.24 137.12 108.13 39.631 36.092 16.781 -484 "D17" 37.723 54.820 48.270 3.8471 5.8319 4.8962 -485 "E17" 163.04 158.68 133.73 43.491 44.349 22.904 -486 "F17" 155.10 81.151 47.477 35.028 21.444 3.8305 -487 "G17" 119.76 108.26 175.73 23.826 20.302 40.464 -488 "H17" 155.83 188.69 108.40 44.211 56.679 16.435 -489 "I17" 54.125 49.417 43.252 6.5115 6.2807 3.6004 -490 "J17" 146.89 182.65 155.76 35.464 48.530 31.500 -491 "K17" 148.71 77.345 50.119 31.217 18.833 4.2081 -492 "L17" 53.925 41.854 39.291 6.1796 5.0138 3.0160 -493 "M17" 105.46 156.83 167.45 21.355 33.511 36.981 -494 "N17" 149.16 79.222 103.08 31.382 17.339 13.539 -495 "O17" 109.98 107.89 138.78 20.515 20.076 24.934 -496 "P17" 151.99 78.765 47.620 32.143 19.447 3.7592 -497 "Q17" 195.13 169.06 200.08 60.501 50.532 52.708 -498 "R17" 73.599 136.55 49.271 12.657 24.420 5.6873 -499 "S17" 37.757 33.718 34.938 3.4355 3.1639 2.5372 -500 "T17" 132.61 142.77 197.68 28.192 29.771 51.322 -501 "U17" 181.82 145.93 103.48 52.660 42.651 15.019 -502 "V17" 204.10 203.91 210.35 69.823 71.393 63.731 -503 "W17" 175.82 179.36 52.229 44.995 50.413 5.2421 -504 "X17" 155.69 156.50 143.88 37.401 38.967 26.702 -505 "Y17" 65.731 44.495 80.654 8.0339 5.5483 9.9052 -506 "Z17" 67.930 138.21 88.916 10.382 21.829 11.599 -507 "2A17" 156.40 87.866 68.881 34.325 21.131 7.2263 -508 "2B17" 68.870 68.990 41.254 9.1863 9.9839 3.1512 -509 "2C17" 209.60 202.66 207.60 75.534 73.388 61.922 -510 "2D17" 108.97 87.062 152.98 19.258 14.916 29.290 -511 "A18" 200.70 204.40 197.90 74.089 78.770 59.424 -512 "B18" 164.93 117.44 177.68 42.903 30.204 40.715 -513 "C18" 61.227 72.827 56.013 8.7363 10.837 6.0872 -514 "D18" 204.51 199.19 195.95 75.509 74.636 56.066 -515 "E18" 73.692 73.322 148.06 10.413 9.8011 28.727 -516 "F18" 68.313 128.24 45.392 11.836 22.861 5.4226 -517 "G18" 131.14 85.288 152.52 26.954 18.177 29.358 -518 "H18" 89.609 153.68 93.128 16.220 29.699 13.154 -519 "I18" 30.179 29.676 28.922 2.3647 2.3980 1.9090 -520 "J18" 208.65 210.69 209.48 77.786 81.283 65.463 -521 "K18" 88.863 70.346 63.498 14.363 11.898 6.7644 -522 "L18" 197.92 177.16 54.602 60.378 57.128 5.2726 -523 "M18" 143.55 91.470 162.00 30.554 20.123 31.743 -524 "N18" 121.99 131.52 122.44 24.748 27.645 20.451 -525 "O18" 172.04 115.00 91.328 44.929 31.003 12.389 -526 "P18" 81.187 74.923 148.64 11.881 10.425 27.990 -527 "Q18" 117.91 169.48 101.12 25.737 39.690 14.823 -528 "R18" 183.93 145.62 52.297 52.300 42.856 4.6545 -529 "S18" 55.452 105.38 65.438 7.2126 14.429 7.1944 -530 "T18" 211.11 208.92 210.90 77.679 78.425 65.193 -531 "U18" 177.41 124.39 134.00 47.084 32.209 22.319 -532 "V18" 53.506 90.891 78.889 6.6683 11.848 10.189 -533 "W18" 197.65 205.13 206.81 65.207 70.970 60.729 -534 "X18" 51.396 86.860 43.674 6.2806 11.330 4.1095 -535 "Y18" 193.58 175.18 113.92 60.571 56.044 16.070 -536 "Z18" 96.313 103.94 178.60 15.673 16.045 40.153 -537 "2A18" 168.53 106.08 128.73 41.178 25.901 19.845 -538 "2B18" 85.496 104.15 136.89 13.693 16.674 24.407 -539 "2C18" 208.09 210.26 179.31 74.223 78.952 41.733 -540 "2D18" 161.94 92.492 50.116 38.135 24.817 4.1395 -541 "A19" 156.71 112.54 101.12 39.239 29.094 15.479 -542 "B19" 42.513 58.501 40.536 4.7416 7.0454 3.4644 -543 "C19" 172.17 152.13 143.40 49.395 43.657 28.522 -544 "D19" 159.73 183.13 54.703 42.332 52.372 5.7052 -545 "E19" 119.21 105.48 95.518 24.242 22.424 14.026 -546 "F19" 30.235 29.764 29.269 2.4551 2.5226 2.0256 -547 "G19" 88.689 134.99 136.69 16.677 25.667 25.825 -548 "H19" 86.392 53.901 45.566 13.124 8.8453 3.5763 -549 "I19" 126.88 158.15 160.78 28.527 37.076 34.358 -550 "J19" 120.42 79.125 64.241 22.891 16.490 6.9749 -551 "K19" 108.34 160.80 164.56 22.666 35.279 35.631 -552 "L19" 49.327 39.952 38.592 5.4212 4.5484 2.9627 -553 "M19" 67.917 128.27 44.976 11.199 21.925 5.4425 -554 "N19" 127.84 62.080 45.945 22.708 12.897 3.6335 -555 "O19" 74.380 138.45 130.11 12.507 23.738 22.498 -556 "P19" 30.060 29.337 28.817 2.3442 2.3896 1.9267 -557 "Q19" 147.97 73.539 46.480 30.303 17.749 3.5777 -558 "R19" 75.153 76.608 151.15 10.104 9.7374 28.448 -559 "S19" 78.339 144.41 52.936 13.901 26.685 6.3873 -560 "T19" 31.312 30.556 30.767 2.4391 2.4780 2.0610 -561 "U19" 169.32 177.98 203.35 45.972 49.473 57.247 -562 "V19" 44.471 72.376 45.634 4.8275 8.3485 3.9886 -563 "W19" 199.02 205.39 55.979 63.154 70.855 7.5811 -564 "X19" 90.125 81.954 73.039 14.863 14.166 8.5770 -565 "Y19" 207.33 211.44 212.22 74.340 78.986 66.286 -566 "Z19" 182.95 126.85 175.69 49.996 33.344 36.894 -567 "2A19" 77.857 90.598 163.13 10.165 11.287 33.081 -568 "2B19" 202.16 204.23 49.052 62.642 69.515 6.2139 -569 "2C19" 162.94 96.440 68.740 38.429 24.741 7.3479 -570 "2D19" 83.952 84.116 160.97 12.944 12.283 32.608 -END_DATA diff --git a/scanin/CMP_Digital_Target-4.cht b/scanin/CMP_Digital_Target-4.cht new file mode 100644 index 0000000..eb95ed8 --- /dev/null +++ b/scanin/CMP_Digital_Target-4.cht @@ -0,0 +1,1210 @@ + +BOXES 571 + F _ _ 100 200 3100 200 3100 2100 100 2100 + D ALL ALL _ _ 3200 200 0 0 0 0 + X A Z 1 19 100 100 100 200 100 100 + X 2A 2D 1 19 100 100 2700 200 100 100 + +BOX_SHRINK 12 + +REF_ROTATION 0.0 + +XLIST 31 + 100 1 1 + 200 1 1 + 300 1 1 + 400 1 1 + 500 1 1 + 600 1 1 + 700 1 1 + 800 1 1 + 900 1 1 + 1000 1 1 + 1100 1 1 + 1200 1 1 + 1300 1 1 + 1400 1 1 + 1500 1 1 + 1600 1 1 + 1700 1 1 + 1800 1 1 + 1900 1 1 + 2000 1 1 + 2100 1 1 + 2200 1 1 + 2300 1 1 + 2400 1 1 + 2500 1 1 + 2600 1 1 + 2700 1 1 + 2800 1 1 + 2900 1 1 + 3000 1 1 + 3100 1 1 + +YLIST 21 + 200 1 1 + 300 1 1 + 400 1 1 + 500 1 1 + 600 1 1 + 700 1 1 + 800 1 1 + 900 1 1 + 1000 1 1 + 1100 1 1 + 1200 1 1 + 1300 1 1 + 1400 1 1 + 1500 1 1 + 1500 1 1 + 1600 1 1 + 1700 1 1 + 1800 1 1 + 1900 1 1 + 2000 1 1 + 2100 1 1 + +EXPECTED XYZ 570 +A1 19.991 14.120 27.886 +B1 19.926 34.054 14.005 +C1 6.2319 5.6339 19.078 +D1 32.785 35.198 16.672 +E1 38.996 22.658 25.805 +F1 16.011 17.612 14.561 +G1 39.496 24.997 12.003 +H1 7.4905 6.2468 18.358 +I1 11.987 23.286 6.5928 +J1 16.591 12.444 27.331 +K1 63.038 64.179 58.403 +L1 4.3513 3.8393 2.7750 +M1 27.386 30.873 42.527 +N1 31.789 44.281 40.439 +O1 59.453 61.985 40.335 +P1 26.783 15.713 3.5833 +Q1 3.0238 3.6843 3.0876 +R1 15.462 28.885 12.776 +S1 23.694 16.421 29.352 +T1 65.900 73.381 11.377 +U1 8.3333 15.036 13.749 +V1 72.416 77.985 33.423 +W1 16.393 25.254 38.122 +X1 2.3144 2.3581 1.9303 +Y1 27.102 23.276 16.813 +Z1 2.6994 2.8850 2.2332 +2A1 10.757 20.588 4.8216 +2B1 40.765 45.919 58.857 +2C1 22.864 16.381 33.839 +2D1 28.289 21.404 20.483 +A2 10.412 10.567 30.978 +B2 24.139 14.085 3.5857 +C2 19.473 21.752 38.376 +D2 26.280 16.991 28.035 +E2 42.573 39.671 9.6556 +F2 17.113 18.705 43.690 +G2 35.850 22.548 3.8554 +H2 13.037 10.392 26.425 +I2 14.946 28.262 8.1825 +J2 3.1780 3.3914 2.3047 +K2 35.880 35.178 26.683 +L2 36.434 22.147 28.386 +M2 17.689 17.022 15.072 +N2 36.396 23.022 13.623 +O2 19.884 26.988 39.544 +P2 10.294 7.4271 3.4839 +Q2 24.415 37.008 36.288 +R2 36.078 21.682 26.898 +S2 12.232 12.247 33.412 +T2 12.486 23.920 5.4357 +U2 38.913 47.091 40.794 +V2 8.3779 6.8387 3.7119 +W2 2.3401 2.3804 1.9157 +X2 17.501 20.678 9.7225 +Y2 60.324 56.490 9.7029 +Z2 18.340 14.257 6.9452 +2A2 39.051 50.700 6.0515 +2B2 5.3134 8.7205 3.7883 +2C2 24.040 16.842 14.641 +2D2 10.963 22.720 8.1563 +A3 3.2215 2.8069 3.1344 +B3 35.703 49.122 24.276 +C3 9.6710 9.2674 28.141 +D3 39.368 42.329 16.693 +E3 9.8448 9.8037 29.501 +F3 50.040 60.997 38.371 +G3 9.8731 9.2375 28.216 +H3 31.926 43.409 5.2962 +I3 18.889 24.530 52.235 +J3 36.271 22.167 11.952 +K3 34.281 37.060 50.573 +L3 2.4511 2.5353 2.0398 +M3 34.120 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204.51 199.19 195.95 +E18 73.692 73.322 148.06 +F18 68.313 128.24 45.392 +G18 131.14 85.288 152.52 +H18 89.609 153.68 93.128 +I18 30.179 29.676 28.922 +J18 208.65 210.69 209.48 +K18 88.863 70.346 63.498 +L18 197.92 177.16 54.602 +M18 143.55 91.470 162.00 +N18 121.99 131.52 122.44 +O18 172.04 115.00 91.328 +P18 81.187 74.923 148.64 +Q18 117.91 169.48 101.12 +R18 183.93 145.62 52.297 +S18 55.452 105.38 65.438 +T18 211.11 208.92 210.90 +U18 177.41 124.39 134.00 +V18 53.506 90.891 78.889 +W18 197.65 205.13 206.81 +X18 51.396 86.860 43.674 +Y18 193.58 175.18 113.92 +Z18 96.313 103.94 178.60 +2A18 168.53 106.08 128.73 +2B18 85.496 104.15 136.89 +2C18 208.09 210.26 179.31 +2D18 161.94 92.492 50.116 +A19 156.71 112.54 101.12 +B19 42.513 58.501 40.536 +C19 172.17 152.13 143.40 +D19 159.73 183.13 54.703 +E19 119.21 105.48 95.518 +F19 30.235 29.764 29.269 +G19 88.689 134.99 136.69 +H19 86.392 53.901 45.566 +I19 126.88 158.15 160.78 +J19 120.42 79.125 64.241 +K19 108.34 160.80 164.56 +L19 49.327 39.952 38.592 +M19 67.917 128.27 44.976 +N19 127.84 62.080 45.945 +O19 74.380 138.45 130.11 +P19 30.060 29.337 28.817 +Q19 147.97 73.539 46.480 +R19 75.153 76.608 151.15 +S19 78.339 144.41 52.936 +T19 31.312 30.556 30.767 +U19 169.32 177.98 203.35 +V19 44.471 72.376 45.634 +W19 199.02 205.39 55.979 +X19 90.125 81.954 73.039 +Y19 207.33 211.44 212.22 +Z19 182.95 126.85 175.69 +2A19 77.857 90.598 163.13 +2B19 202.16 204.23 49.052 +2C19 162.94 96.440 68.740 +2D19 83.952 84.116 160.97 + diff --git a/scanin/CMP_Digital_Target-4.cie b/scanin/CMP_Digital_Target-4.cie new file mode 100644 index 0000000..6c8ff5d --- /dev/null +++ b/scanin/CMP_Digital_Target-4.cie @@ -0,0 +1,591 @@ +CTI3 + +DESCRIPTOR "Argyll Calibration Target chart information 3" +ORIGINATOR "Argyll chartread" +CREATED "Mon Sep 7 08:33:21 2009" +KEYWORD "DEVICE_CLASS" +DEVICE_CLASS "OUTPUT" +KEYWORD "COLOR_REP" +COLOR_REP "RGB_XYZ" +KEYWORD "TARGET_INSTRUMENT" +TARGET_INSTRUMENT "GretagMacbeth i1 Pro" + +KEYWORD "SAMPLE_LOC" +NUMBER_OF_FIELDS 8 +BEGIN_DATA_FORMAT +SAMPLE_ID SAMPLE_LOC RGB_R RGB_G RGB_B XYZ_X XYZ_Y XYZ_Z +END_DATA_FORMAT + +NUMBER_OF_SETS 570 +BEGIN_DATA +1 "A1" 106.60 73.896 140.50 19.991 14.120 27.886 +2 "B1" 101.22 157.76 91.298 19.926 34.054 14.005 +3 "C1" 56.474 54.712 116.20 6.2319 5.6339 19.078 +4 "D1" 142.23 143.96 106.67 32.785 35.198 16.672 +5 "E1" 161.58 92.303 143.82 38.996 22.658 25.805 +6 "F1" 90.405 96.497 94.153 16.011 17.612 14.561 +7 "G1" 163.39 98.124 88.178 39.496 24.997 12.003 +8 "H1" 63.278 55.370 115.21 7.4905 6.2468 18.358 +9 "I1" 71.385 133.64 49.363 11.987 23.286 6.5928 +10 "J1" 97.757 75.383 143.28 16.591 12.444 27.331 +11 "K1" 194.49 193.52 200.39 63.038 64.179 58.403 +12 "L1" 43.729 37.037 36.612 4.3513 3.8393 2.7750 +13 "M1" 128.36 143.53 178.51 27.386 30.873 42.527 +14 "N1" 136.71 176.12 173.90 31.789 44.281 40.439 +15 "O1" 190.25 190.03 173.26 59.453 61.985 40.335 +16 "P1" 139.89 69.074 45.054 26.783 15.713 3.5833 +17 "Q1" 34.433 40.188 37.667 3.0238 3.6843 3.0876 +18 "R1" 87.362 153.04 89.833 15.462 28.885 12.776 +19 "S1" 124.79 84.048 151.84 23.694 16.421 29.352 +20 "T1" 201.42 206.76 79.283 65.900 73.381 11.377 +21 "U1" 59.875 104.70 93.370 8.3333 15.036 13.749 +22 "V1" 205.39 208.60 159.63 72.416 77.985 33.423 +23 "W1" 91.572 136.12 167.03 16.393 25.254 38.122 +24 "X1" 30.336 29.306 28.957 2.3144 2.3581 1.9303 +25 "Y1" 132.60 110.17 107.91 27.102 23.276 16.813 +26 "Z1" 32.956 33.215 31.185 2.6994 2.8850 2.2332 +27 "2A1" 70.282 129.32 46.946 10.757 20.588 4.8216 +28 "2B1" 159.00 173.65 202.91 40.765 45.919 58.857 +29 "2C1" 121.19 88.150 161.84 22.864 16.381 33.839 +30 "2D1" 136.59 101.50 125.83 28.289 21.404 20.483 +31 "A2" 75.414 80.525 150.43 10.412 10.567 30.978 +32 "B2" 128.64 63.027 42.872 24.139 14.085 3.5857 +33 "C2" 101.62 116.40 166.26 19.473 21.752 38.376 +34 "D2" 129.62 78.772 146.55 26.280 16.991 28.035 +35 "E2" 164.20 144.75 82.589 42.573 39.671 9.6556 +36 "F2" 96.904 110.83 179.21 17.113 18.705 43.690 +37 "G2" 157.24 84.071 46.359 35.850 22.548 3.8554 +38 "H2" 84.439 70.424 140.26 13.037 10.392 26.425 +39 "I2" 81.661 147.44 58.864 14.946 28.262 8.1825 +40 "J2" 35.433 35.856 32.072 3.1780 3.3914 2.3047 +41 "K2" 150.66 144.08 140.58 35.880 35.178 26.683 +42 "L2" 158.35 93.379 154.74 36.434 22.147 28.386 +43 "M2" 100.38 93.492 99.897 17.689 17.022 15.072 +44 "N2" 158.93 93.968 95.921 36.396 23.022 13.623 +45 "O2" 102.60 137.21 171.09 19.884 26.988 39.544 +46 "P2" 74.932 50.703 44.902 10.294 7.4271 3.4839 +47 "Q2" 115.12 165.78 166.70 24.415 37.008 36.288 +48 "R2" 157.97 92.663 150.58 36.078 21.682 26.898 +49 "S2" 83.913 88.787 161.27 12.232 12.247 33.412 +50 "T2" 72.772 133.20 48.154 12.486 23.920 5.4357 +51 "U2" 155.64 177.45 175.23 38.913 47.091 40.794 +52 "V2" 65.311 50.797 44.712 8.3779 6.8387 3.7119 +53 "W2" 30.304 29.389 28.630 2.3401 2.3804 1.9157 +54 "X2" 98.383 112.57 76.501 17.501 20.678 9.7225 +55 "Y2" 196.95 176.56 81.174 60.324 56.490 9.7029 +56 "Z2" 106.87 76.461 64.020 18.340 14.257 6.9452 +57 "2A2" 149.29 180.57 55.756 39.051 50.700 6.0515 +58 "2B2" 46.850 72.093 42.887 5.3134 8.7205 3.7883 +59 "2C2" 126.21 86.097 104.74 24.040 16.842 14.641 +60 "2D2" 68.443 138.05 59.668 10.963 22.720 8.1563 +61 "A3" 40.703 34.668 43.170 3.2215 2.8069 3.1344 +62 "B3" 140.80 177.61 130.47 35.703 49.122 24.276 +63 "C3" 71.422 72.467 144.63 9.6710 9.2674 28.141 +64 "D3" 157.83 159.05 109.87 39.368 42.329 16.693 +65 "E3" 74.511 78.412 148.91 9.8448 9.8037 29.501 +66 "F3" 172.35 192.98 167.60 50.040 60.997 38.371 +67 "G3" 72.505 72.322 146.66 9.8731 9.2375 28.216 +68 "H3" 132.85 167.63 50.020 31.926 43.409 5.2962 +69 "I3" 99.822 132.27 193.48 18.889 24.530 52.235 +70 "J3" 158.78 88.817 87.144 36.271 22.167 11.952 +71 "K3" 146.32 156.61 192.38 34.281 37.060 50.573 +72 "L3" 30.978 30.641 29.826 2.4511 2.5353 2.0398 +73 "M3" 146.27 153.30 150.57 34.120 37.136 30.510 +74 "N3" 144.16 70.919 46.534 28.309 16.461 3.7229 +75 "O3" 85.091 72.947 144.27 12.851 10.508 27.052 +76 "P3" 122.91 131.12 67.881 24.532 27.910 7.4170 +77 "Q3" 140.27 116.77 178.48 29.800 23.719 40.761 +78 "R3" 73.020 103.31 46.082 11.420 17.249 4.2060 +79 "S3" 148.58 74.828 46.145 30.098 17.923 3.6411 +80 "T3" 92.676 106.61 179.17 15.102 16.455 41.548 +81 "U3" 89.067 149.36 56.522 16.816 29.880 6.2892 +82 "V3" 104.27 103.98 177.68 19.054 17.886 40.635 +83 "W3" 122.27 64.970 44.965 21.160 13.146 3.6418 +84 "X3" 190.80 157.08 167.65 56.827 44.647 36.033 +85 "Y3" 55.033 94.759 44.077 7.3224 13.350 4.3645 +86 "Z3" 157.08 85.576 87.558 34.447 20.515 11.595 +87 "2A3" 79.250 88.578 159.52 10.795 11.448 32.464 +88 "2B3" 108.15 127.71 55.172 20.617 25.691 5.5795 +89 "2C3" 78.102 75.847 150.05 11.126 10.174 28.914 +90 "2D3" 202.83 194.20 199.16 68.724 66.102 56.410 +91 "A4" 105.09 86.729 157.14 19.671 15.554 33.919 +92 "B4" 99.696 102.26 43.923 17.501 19.753 3.8498 +93 "C4" 107.26 130.81 190.72 21.509 25.734 51.674 +94 "D4" 178.30 141.51 75.719 51.958 42.451 9.1213 +95 "E4" 86.201 111.97 176.39 14.112 17.806 42.697 +96 "F4" 192.41 193.92 143.50 61.487 65.884 27.427 +97 "G4" 161.20 95.317 155.94 38.420 23.239 29.457 +98 "H4" 74.863 77.945 149.59 9.8759 9.7311 29.126 +99 "I4" 207.61 208.23 184.16 75.793 79.718 46.695 +100 "J4" 70.931 101.90 131.71 10.595 15.480 24.653 +101 "K4" 147.01 94.545 162.80 32.187 21.331 32.814 +102 "L4" 81.586 103.83 104.84 13.777 17.753 16.663 +103 "M4" 141.06 69.848 45.247 27.339 16.027 3.5603 +104 "N4" 90.494 151.07 150.65 16.922 28.995 29.336 +105 "O4" 55.294 41.016 63.313 6.3066 4.7610 6.9921 +106 "P4" 111.84 140.47 103.22 22.390 29.210 15.592 +107 "Q4" 144.45 93.249 162.31 30.657 20.369 32.268 +108 "R4" 105.31 104.82 101.31 19.152 19.807 15.592 +109 "S4" 79.325 137.68 48.973 13.948 25.671 5.2122 +110 "T4" 84.189 150.82 120.01 14.991 27.898 19.745 +111 "U4" 81.413 52.379 93.432 11.486 7.6381 12.484 +112 "V4" 76.459 77.531 42.048 10.749 11.899 3.2945 +113 "W4" 211.28 212.44 213.00 77.699 80.782 67.995 +114 "X4" 125.79 102.06 67.469 24.430 21.610 7.1800 +115 "Y4" 36.736 36.340 46.306 3.2104 3.1999 4.2513 +116 "Z4" 83.114 150.29 61.891 14.450 27.763 8.5197 +117 "2A4" 117.71 90.574 160.37 21.679 16.235 32.574 +118 "2B4" 89.463 153.87 72.494 15.737 29.267 10.078 +119 "2C4" 42.498 47.832 65.570 3.9226 4.4418 7.5674 +120 "2D4" 115.91 156.34 101.73 24.022 34.375 15.022 +121 "A5" 100.43 57.576 43.875 16.920 10.945 3.6233 +122 "B5" 139.57 140.52 191.37 32.876 32.373 51.547 +123 "C5" 106.24 157.82 63.346 23.454 37.144 7.5202 +124 "D5" 120.63 119.68 128.56 24.762 25.266 23.702 +125 "E5" 144.32 70.530 44.643 29.192 16.958 3.5359 +126 "F5" 112.12 164.88 139.23 23.640 37.186 26.447 +127 "G5" 103.37 136.87 47.413 20.387 28.842 4.7028 +128 "H5" 36.251 41.780 35.395 3.3636 4.0809 2.6833 +129 "I5" 111.24 162.80 164.26 23.272 35.820 35.198 +130 "J5" 143.56 87.562 156.55 30.642 19.573 30.103 +131 "K5" 109.54 163.06 164.19 22.753 35.416 35.064 +132 "L5" 79.627 52.133 45.354 11.209 7.8786 3.5144 +133 "M5" 92.456 152.33 153.19 17.513 29.721 30.234 +134 "N5" 34.714 33.013 32.281 2.9935 2.9559 2.2837 +135 "O5" 166.35 175.94 163.99 44.139 49.035 35.423 +136 "P5" 89.669 79.549 47.144 14.200 13.959 3.6761 +137 "Q5" 191.24 182.85 188.48 59.021 56.831 48.262 +138 "R5" 51.675 70.899 41.770 6.3401 9.2262 3.4989 +139 "S5" 170.53 177.54 173.76 45.700 49.818 40.124 +140 "T5" 63.890 93.942 45.687 9.3142 14.437 4.0636 +141 "U5" 30.168 29.299 28.940 2.3535 2.3975 1.9290 +142 "V5" 133.08 133.14 122.05 27.766 28.925 20.091 +143 "W5" 36.054 32.923 33.276 3.0887 2.9300 2.3596 +144 "X5" 61.314 111.77 45.755 8.7239 16.803 5.0276 +145 "Y5" 203.39 209.40 208.06 70.161 75.882 63.247 +146 "Z5" 76.353 77.670 109.77 11.191 11.244 16.654 +147 "2A5" 193.86 202.18 186.73 62.394 68.771 47.096 +148 "2B5" 84.630 73.965 145.61 12.640 10.459 27.333 +149 "2C5" 68.392 129.05 45.336 11.160 21.761 5.5099 +150 "2D5" 210.46 210.49 195.89 77.413 80.592 53.936 +151 "A6" 156.79 90.614 148.03 37.703 22.453 27.499 +152 "B6" 88.481 111.82 178.46 14.943 18.301 44.058 +153 "C6" 167.90 108.82 66.983 44.282 30.956 7.9185 +154 "D6" 66.578 110.85 54.360 10.440 18.144 6.5076 +155 "E6" 148.31 87.735 154.80 32.892 20.486 29.274 +156 "F6" 93.611 155.13 115.73 17.819 31.263 19.184 +157 "G6" 40.190 39.280 58.763 3.7468 3.6058 6.3752 +158 "H6" 170.89 152.59 147.19 45.907 41.132 28.818 +159 "I6" 46.469 44.545 75.326 4.4472 4.1158 9.1204 +160 "J6" 102.48 151.18 180.03 20.388 31.549 44.358 +161 "K6" 30.872 30.164 29.516 2.3970 2.4515 1.9961 +162 "L6" 83.294 137.00 98.315 14.323 24.343 14.536 +163 "M6" 30.722 30.150 29.446 2.3623 2.4293 1.9541 +164 "N6" 163.74 151.67 194.83 41.190 36.767 50.714 +165 "O6" 199.83 203.65 49.970 62.357 69.847 6.3069 +166 "P6" 77.512 86.873 159.07 10.124 10.811 31.915 +167 "Q6" 200.99 194.31 190.45 67.127 65.762 49.352 +168 "R6" 165.39 100.99 154.68 39.128 23.959 27.822 +169 "S6" 69.496 98.026 61.986 10.413 15.222 6.7952 +170 "T6" 167.68 124.93 146.98 41.195 30.074 26.292 +171 "U6" 62.706 68.483 60.211 8.4099 9.5591 6.5834 +172 "V6" 174.63 108.06 166.14 43.942 26.976 32.439 +173 "W6" 138.60 174.02 106.27 33.397 44.263 15.513 +174 "X6" 192.12 161.59 197.05 56.629 45.672 50.137 +175 "Y6" 71.207 70.503 63.173 10.198 10.583 6.9283 +176 "Z6" 171.42 121.85 182.26 42.782 29.822 40.386 +177 "2A6" 193.77 197.98 207.14 61.567 65.013 61.274 +178 "2B6" 117.80 82.965 151.94 21.335 15.115 28.916 +179 "2C6" 36.305 39.517 34.462 3.2203 3.7212 2.6005 +180 "2D6" 152.48 145.44 148.89 35.799 34.854 29.422 +181 "A7" 93.637 153.35 73.710 19.123 33.078 10.667 +182 "B7" 83.277 73.755 144.52 12.915 10.831 28.225 +183 "C7" 206.85 206.70 197.33 77.518 80.587 57.622 +184 "D7" 77.454 73.349 146.72 11.348 10.154 28.703 +185 "E7" 70.809 132.64 47.023 12.442 24.254 5.6475 +186 "F7" 91.049 88.345 163.10 15.345 13.969 34.910 +187 "G7" 177.87 190.87 53.018 52.703 61.988 5.9513 +188 "H7" 75.960 87.720 159.98 9.9056 10.888 32.881 +189 "I7" 199.48 192.77 181.55 67.471 66.483 44.705 +190 "J7" 64.713 68.090 67.610 8.8426 9.6268 8.1730 +191 "K7" 193.08 175.48 139.54 61.925 56.855 24.968 +192 "L7" 75.430 87.876 159.79 9.6349 10.726 32.427 +193 "M7" 133.24 173.17 56.742 32.435 45.157 6.1480 +194 "N7" 148.49 75.098 46.216 30.427 18.146 3.6270 +195 "O7" 97.134 97.177 86.559 16.928 17.695 11.911 +196 "P7" 191.20 160.30 54.685 56.094 48.894 4.9467 +197 "Q7" 80.068 80.251 125.32 11.934 11.778 20.573 +198 "R7" 83.368 147.19 55.358 15.285 28.434 6.3346 +199 "S7" 37.747 44.719 36.907 3.5054 4.3615 2.7830 +200 "T7" 146.52 175.26 205.50 35.099 44.589 58.771 +201 "U7" 133.97 82.941 152.98 26.155 17.005 28.079 +202 "V7" 63.182 103.22 97.125 8.9086 14.924 14.071 +203 "W7" 144.22 147.07 76.384 30.611 33.536 8.6858 +204 "X7" 212.78 213.19 211.89 79.113 81.784 66.503 +205 "Y7" 77.896 86.298 158.37 10.240 10.764 31.229 +206 "Z7" 71.313 133.52 47.389 11.976 23.218 5.4228 +207 "2A7" 75.926 78.650 151.98 9.9976 9.7574 28.929 +208 "2B7" 118.08 168.98 98.781 25.572 39.297 14.262 +209 "2C7" 207.34 198.34 43.623 66.257 69.908 5.8960 +210 "2D7" 92.639 108.26 179.66 14.893 16.603 41.626 +211 "A8" 69.904 137.36 58.325 12.100 24.359 8.4071 +212 "B8" 167.09 144.55 49.599 42.436 39.900 4.7260 +213 "C8" 111.10 78.672 121.83 20.574 15.216 20.136 +214 "D8" 74.340 141.34 56.829 12.701 25.255 8.1803 +215 "E8" 104.13 74.055 141.65 18.324 13.039 26.409 +216 "F8" 90.075 154.61 90.911 16.724 30.035 13.212 +217 "G8" 36.341 33.896 36.868 3.3200 3.1831 3.0291 +218 "H8" 101.65 159.66 134.07 20.304 33.570 24.443 +219 "I8" 34.216 33.499 37.712 2.9169 2.9009 3.0168 +220 "J8" 174.41 165.56 173.38 48.038 46.099 39.891 +221 "K8" 46.252 66.300 42.397 5.2241 8.0427 3.5985 +222 "L8" 152.69 184.12 182.69 38.619 50.368 44.407 +223 "M8" 30.240 29.863 28.939 2.3428 2.3959 1.9273 +224 "N8" 35.593 35.467 34.190 3.1956 3.3116 2.6415 +225 "O8" 71.728 71.553 70.937 10.494 10.847 8.8081 +226 "P8" 115.92 116.10 114.68 22.233 23.005 18.548 +227 "Q8" 159.85 160.38 159.13 39.317 40.778 33.056 +228 "R8" 196.60 197.21 197.12 63.147 65.480 53.862 +229 "S8" 137.57 112.53 140.33 28.252 23.514 24.400 +230 "T8" 80.940 142.13 50.952 14.520 26.909 5.4756 +231 "U8" 99.365 133.93 196.43 18.057 24.054 51.817 +232 "V8" 30.957 30.566 29.813 2.3402 2.3911 1.9209 +233 "W8" 212.09 210.69 210.55 77.838 79.255 64.883 +234 "X8" 90.920 71.799 46.751 14.232 12.342 3.5677 +235 "Y8" 137.72 177.30 175.40 31.451 43.594 39.472 +236 "Z8" 39.524 49.911 38.685 3.8429 5.0881 3.0661 +237 "2A8" 130.39 176.13 127.05 27.844 41.491 21.140 +238 "2B8" 31.904 31.437 30.690 2.4921 2.5648 2.0613 +239 "2C8" 149.77 158.18 196.00 34.635 36.777 50.964 +240 "2D8" 30.719 29.824 29.600 2.3436 2.3905 1.9440 +241 "A9" 160.64 188.72 135.75 46.811 59.109 25.406 +242 "B9" 151.09 113.48 161.82 35.695 26.905 33.928 +243 "C9" 56.378 101.12 44.028 8.0578 15.313 4.8058 +244 "D9" 200.86 192.61 183.06 70.562 68.540 46.575 +245 "E9" 77.639 89.149 161.20 10.633 11.656 33.787 +246 "F9" 183.43 148.52 132.23 54.113 43.360 23.933 +247 "G9" 53.868 83.869 77.703 7.1200 11.358 10.328 +248 "H9" 144.68 93.693 163.06 31.237 20.786 32.756 +249 "I9" 80.625 147.05 117.46 14.469 27.174 19.553 +250 "J9" 82.612 53.093 45.342 11.813 8.1727 3.4750 +251 "K9" 179.05 178.11 205.03 51.613 51.265 59.093 +252 "L9" 68.256 128.21 45.397 11.232 21.889 5.3482 +253 "M9" 30.122 29.559 28.786 2.3389 2.3932 1.9205 +254 "N9" 44.132 44.030 43.113 4.6543 4.8363 3.9004 +255 "O9" 77.603 77.496 77.212 11.973 12.444 10.082 +256 "P9" 123.38 123.35 123.35 24.548 25.410 20.720 +257 "Q9" 167.61 168.12 167.11 43.270 44.842 36.215 +258 "R9" 202.61 204.17 205.53 68.113 71.034 59.864 +259 "S9" 152.34 81.269 59.657 31.468 18.903 5.4734 +260 "T9" 36.525 39.233 37.120 3.2297 3.6435 2.9170 +261 "U9" 147.79 112.59 105.57 31.779 25.042 15.321 +262 "V9" 128.85 175.42 85.449 30.098 43.673 10.856 +263 "W9" 202.12 182.11 203.04 65.360 57.273 55.175 +264 "X9" 58.841 111.22 46.014 7.8261 15.682 5.0934 +265 "Y9" 150.27 74.574 46.780 30.151 17.603 3.5424 +266 "Z9" 91.373 72.814 142.15 14.169 10.872 25.545 +267 "2A9" 178.42 178.87 165.68 49.740 51.961 35.295 +268 "2B9" 110.21 82.066 150.83 19.293 14.167 28.533 +269 "2C9" 115.57 141.00 82.227 23.305 29.469 10.465 +270 "2D9" 120.44 87.308 156.62 22.420 16.254 30.792 +271 "A10" 54.278 98.104 59.100 7.4766 14.316 6.7672 +272 "B10" 141.49 142.92 50.130 30.693 34.185 4.8132 +273 "C10" 69.545 135.98 93.417 11.568 23.235 13.773 +274 "D10" 30.772 30.009 29.471 2.4307 2.4999 2.0171 +275 "E10" 140.52 89.479 159.03 30.140 19.949 31.751 +276 "F10" 88.149 135.62 165.23 15.810 25.353 37.521 +277 "G10" 30.508 30.075 29.389 2.4272 2.4936 1.9887 +278 "H10" 75.794 144.13 86.030 12.549 25.096 11.562 +279 "I10" 29.881 29.286 28.915 2.3402 2.3788 1.9223 +280 "J10" 78.427 139.08 135.09 13.387 24.235 23.958 +281 "K10" 127.69 103.24 52.122 25.478 22.853 4.3681 +282 "L10" 47.518 38.484 37.887 5.0366 4.2550 2.8902 +283 "M10" 30.202 29.466 28.978 2.3374 2.3915 1.9194 +284 "N10" 50.671 50.438 49.901 5.8942 6.1054 4.9143 +285 "O10" 84.087 84.218 84.130 13.462 14.013 11.428 +286 "P10" 130.92 131.27 131.19 27.055 28.014 23.007 +287 "Q10" 174.24 174.94 173.31 47.406 49.169 39.386 +288 "R10" 208.46 209.75 212.17 73.974 77.043 65.729 +289 "S10" 61.440 61.759 68.112 7.8358 8.0794 7.9176 +290 "T10" 189.59 154.63 195.61 54.395 42.563 48.165 +291 "U10" 70.065 139.76 58.155 11.113 22.841 7.7084 +292 "V10" 34.382 38.877 37.374 2.9394 3.4387 2.9247 +293 "W10" 81.185 148.91 88.683 13.284 25.973 11.867 +294 "X10" 31.337 30.706 30.647 2.4768 2.5120 2.1182 +295 "Y10" 132.10 124.54 122.36 27.102 26.481 19.829 +296 "Z10" 128.86 77.259 44.848 23.978 16.698 3.6586 +297 "2A10" 121.07 144.71 145.24 24.659 30.178 27.108 +298 "2B10" 91.404 54.498 76.524 13.618 8.1445 8.4106 +299 "2C10" 122.45 129.19 129.52 24.412 26.496 22.533 +300 "2D10" 52.091 43.712 85.349 5.2897 4.2252 10.803 +301 "A11" 95.121 56.945 109.13 15.662 9.9371 16.757 +302 "B11" 49.247 84.978 41.595 6.3528 11.756 4.1276 +303 "C11" 201.38 188.28 201.57 70.247 65.054 58.834 +304 "D11" 165.99 106.71 48.883 42.904 30.283 4.3741 +305 "E11" 142.45 151.87 140.77 33.675 37.292 27.259 +306 "F11" 59.895 43.373 70.686 7.3260 5.3398 8.4321 +307 "G11" 185.60 179.80 175.52 56.748 56.026 41.441 +308 "H11" 62.810 62.001 39.464 8.1585 8.7147 3.0001 +309 "I11" 182.38 181.99 177.01 54.512 56.195 42.466 +310 "J11" 44.613 62.579 56.523 4.9736 7.2275 6.1574 +311 "K11" 177.26 171.26 154.02 50.413 50.352 29.675 +312 "L11" 81.706 58.921 119.57 11.783 8.3671 18.993 +313 "M11" 30.648 29.769 29.464 2.4004 2.4632 1.9865 +314 "N11" 56.534 56.324 55.689 7.0502 7.2979 5.9348 +315 "O11" 89.911 89.936 88.980 15.157 15.663 12.643 +316 "P11" 140.77 141.41 140.88 30.809 31.935 26.037 +317 "Q11" 179.84 180.21 178.58 51.029 52.827 42.179 +318 "R11" 212.60 213.84 215.53 78.892 82.077 69.152 +319 "S11" 66.493 66.184 65.558 9.0391 9.3614 7.5795 +320 "T11" 187.32 160.61 146.99 54.688 46.067 27.270 +321 "U11" 59.842 44.929 41.517 7.0672 5.5203 3.1542 +322 "V11" 100.71 151.70 177.40 19.018 30.251 40.808 +323 "W11" 32.433 32.983 31.555 2.6438 2.7813 2.1741 +324 "X11" 103.41 161.56 150.03 20.294 33.254 28.954 +325 "Y11" 49.930 46.756 84.028 4.7917 4.3367 10.461 +326 "Z11" 157.24 187.57 185.20 39.678 51.335 44.730 +327 "2A11" 69.840 130.51 46.639 11.397 22.075 5.4606 +328 "2B11" 164.73 190.77 189.92 43.396 54.386 47.692 +329 "2C11" 67.660 57.565 50.639 9.0264 8.0855 4.5632 +330 "2D11" 146.88 73.255 46.894 29.263 17.239 3.6542 +331 "A12" 149.18 183.06 84.464 42.435 55.238 11.960 +332 "B12" 72.446 71.794 146.17 10.244 9.5241 28.550 +333 "C12" 111.58 163.80 82.344 25.557 39.490 11.397 +334 "D12" 67.115 62.023 67.669 9.5983 9.1448 8.3283 +335 "E12" 202.25 206.59 144.16 71.285 77.444 27.463 +336 "F12" 142.52 142.52 149.46 32.592 33.399 30.058 +337 "G12" 52.218 46.843 96.005 5.1430 4.3541 13.182 +338 "H12" 95.301 157.62 128.66 18.517 32.087 22.562 +339 "I12" 58.804 42.199 45.333 6.9977 5.1440 3.8014 +340 "J12" 201.67 207.01 112.57 69.246 76.042 17.844 +341 "K12" 76.878 56.433 113.86 10.642 7.6407 17.593 +342 "L12" 110.43 164.87 121.89 21.927 35.477 19.681 +343 "M12" 31.073 30.502 29.828 2.4287 2.4921 1.9949 +344 "N12" 60.863 60.999 60.221 7.9937 8.3172 6.7360 +345 "O12" 97.436 97.414 96.425 17.120 17.761 14.285 +346 "P12" 146.96 147.76 147.68 33.242 34.486 28.221 +347 "Q12" 186.04 186.49 184.52 55.136 57.000 45.303 +348 "R12" 217.03 217.69 217.80 84.047 87.070 71.496 +349 "S12" 173.81 166.67 164.48 46.799 45.618 34.284 +350 "T12" 61.998 59.133 126.43 6.6921 6.0185 19.773 +351 "U12" 133.08 178.53 107.01 31.583 45.365 15.646 +352 "V12" 159.59 92.307 67.569 35.975 22.808 7.0470 +353 "W12" 92.823 93.091 102.67 15.632 16.004 15.333 +354 "X12" 153.31 79.910 48.385 32.188 19.569 3.7849 +355 "Y12" 76.169 77.765 152.48 9.9981 9.6287 28.171 +356 "Z12" 80.867 145.82 55.209 14.429 27.348 6.4901 +357 "2A12" 88.726 84.091 155.13 13.822 12.446 29.936 +358 "2B12" 201.37 208.14 195.53 68.261 74.431 52.067 +359 "2C12" 32.004 31.705 30.813 2.4685 2.5621 2.0287 +360 "2D12" 135.53 145.08 187.78 28.798 30.974 45.549 +361 "A13" 86.415 69.301 138.07 14.129 10.884 26.286 +362 "B13" 104.58 136.42 46.559 21.280 29.662 4.6515 +363 "C13" 147.82 79.114 100.32 32.064 17.966 13.604 +364 "D13" 75.334 85.157 157.26 9.9611 10.733 32.277 +365 "E13" 178.81 179.96 148.24 51.845 54.927 28.181 +366 "F13" 55.482 72.327 100.16 6.3441 8.5421 15.068 +367 "G13" 200.09 199.75 184.43 68.699 71.452 46.387 +368 "H13" 76.688 84.710 151.41 10.374 10.902 29.169 +369 "I13" 129.73 107.35 52.022 26.203 23.997 4.3858 +370 "J13" 119.03 160.66 198.42 25.753 36.554 54.373 +371 "K13" 56.473 50.032 106.16 5.9068 4.9157 15.287 +372 "L13" 153.18 106.56 46.936 35.348 27.270 4.1933 +373 "M13" 32.264 31.978 31.289 2.6154 2.7053 2.1626 +374 "N13" 66.470 66.520 66.246 9.3637 9.6843 7.8391 +375 "O13" 105.28 105.86 104.76 19.359 20.106 16.147 +376 "P13" 153.75 154.63 154.12 36.624 37.957 30.671 +377 "Q13" 192.03 192.25 191.27 59.859 61.861 49.702 +378 "R13" 221.68 221.89 221.96 89.957 93.025 75.604 +379 "S13" 104.20 75.856 145.33 17.613 12.665 26.369 +380 "T13" 121.87 124.18 72.370 22.969 25.114 7.7873 +381 "U13" 91.392 55.886 72.021 13.623 8.3610 7.6135 +382 "V13" 193.01 176.53 161.70 59.661 54.433 33.140 +383 "W13" 97.047 61.496 44.638 15.045 10.609 3.4373 +384 "X13" 124.18 171.27 172.48 26.676 39.190 37.659 +385 "Y13" 100.95 103.55 45.932 16.770 18.831 3.7976 +386 "Z13" 98.719 76.722 108.03 16.243 13.004 15.620 +387 "2A13" 193.99 204.68 205.71 62.079 69.145 59.254 +388 "2B13" 77.619 94.368 167.50 9.8300 11.508 34.315 +389 "2C13" 91.512 53.191 50.701 13.378 8.4024 4.1065 +390 "2D13" 76.609 104.98 135.45 11.706 16.228 24.708 +391 "A14" 129.84 79.131 147.61 27.260 17.709 28.446 +392 "B14" 74.731 86.884 158.53 10.007 11.116 33.309 +393 "C14" 178.45 194.65 198.02 55.170 63.826 56.969 +394 "D14" 122.80 65.789 71.805 22.474 12.791 7.8220 +395 "E14" 99.529 101.15 66.691 17.833 19.340 7.6068 +396 "F14" 133.73 68.160 43.803 25.508 15.387 3.5019 +397 "G14" 130.31 174.28 137.87 28.674 42.244 25.294 +398 "H14" 110.49 77.413 145.63 20.013 14.167 27.201 +399 "I14" 30.999 29.764 29.587 2.4079 2.4331 1.9867 +400 "J14" 120.14 114.13 178.99 23.527 21.066 41.374 +401 "K14" 128.29 64.544 74.117 23.203 12.509 8.0121 +402 "L14" 176.70 157.34 183.40 48.486 42.511 43.112 +403 "M14" 59.777 105.00 45.141 8.6031 15.926 4.6200 +404 "N14" 182.00 181.11 190.30 53.107 53.884 48.977 +405 "O14" 42.651 40.749 62.042 3.9836 3.7404 6.5852 +406 "P14" 151.32 150.31 182.91 35.517 35.068 43.001 +407 "Q14" 162.51 94.932 125.82 37.782 22.314 19.042 +408 "R14" 99.745 94.301 93.467 17.467 17.105 13.104 +409 "S14" 107.25 159.78 58.090 22.370 35.508 5.9931 +410 "T14" 128.01 72.369 117.84 23.886 13.985 16.868 +411 "U14" 107.76 101.18 90.766 19.591 19.252 12.172 +412 "V14" 204.14 190.16 48.644 63.345 63.812 5.6645 +413 "W14" 82.597 65.626 44.970 12.028 10.481 3.3856 +414 "X14" 166.39 166.20 175.82 42.635 43.420 39.912 +415 "Y14" 100.69 152.17 51.384 19.856 32.192 5.1431 +416 "Z14" 91.650 100.20 90.746 15.570 17.641 12.711 +417 "2A14" 143.62 91.243 162.04 29.733 19.495 31.105 +418 "2B14" 214.71 215.34 214.31 81.209 84.285 67.959 +419 "2C14" 101.32 87.875 161.74 16.972 13.897 32.504 +420 "2D14" 105.18 138.75 68.497 20.262 27.906 7.7177 +421 "A15" 124.84 68.758 114.78 24.922 14.319 17.652 +422 "B15" 99.929 150.22 167.53 20.394 32.266 39.177 +423 "C15" 121.25 165.78 57.133 28.847 42.042 6.3345 +424 "D15" 129.49 121.04 130.58 27.579 26.553 23.681 +425 "E15" 161.27 95.254 123.97 38.874 23.290 19.357 +426 "F15" 148.20 174.03 142.22 36.703 46.352 27.027 +427 "G15" 150.41 98.923 167.42 34.061 22.803 34.531 +428 "H15" 75.180 91.615 158.04 10.113 11.921 31.879 +429 "I15" 196.22 179.25 172.32 64.423 58.008 39.281 +430 "J15" 66.558 62.105 60.696 9.4542 9.1717 6.7120 +431 "K15" 174.25 177.65 112.40 48.073 52.062 16.154 +432 "L15" 116.33 112.29 162.02 22.225 20.657 33.169 +433 "M15" 133.68 171.46 73.038 32.410 43.840 8.6168 +434 "N15" 102.47 146.49 198.15 19.932 29.141 53.896 +435 "O15" 64.715 46.574 43.032 8.2354 6.1612 3.2448 +436 "P15" 105.91 159.08 164.78 21.186 33.689 34.860 +437 "Q15" 34.379 33.754 36.003 2.8839 2.9372 2.7235 +438 "R15" 102.62 61.271 119.89 16.647 10.677 18.389 +439 "S15" 159.62 86.224 48.021 35.874 22.454 3.7685 +440 "T15" 95.611 158.57 127.45 18.024 31.495 21.231 +441 "U15" 133.03 87.140 157.87 26.027 17.635 30.172 +442 "V15" 48.894 77.368 43.484 5.7623 9.6302 3.8733 +443 "W15" 182.54 191.20 178.40 53.522 58.991 41.376 +444 "X15" 126.00 95.308 166.74 23.991 17.693 34.060 +445 "Y15" 38.376 39.986 33.590 3.5595 3.8688 2.3978 +446 "Z15" 148.30 148.94 147.37 34.055 35.265 28.241 +447 "2A15" 146.55 75.055 68.429 29.379 16.826 7.3609 +448 "2B15" 71.706 70.645 144.63 9.2107 8.5579 25.691 +449 "2C15" 133.02 80.816 44.452 25.707 18.129 3.6532 +450 "2D15" 82.777 113.54 117.52 13.875 19.568 19.948 +451 "A16" 147.43 75.104 45.417 32.441 19.582 3.7464 +452 "B16" 162.22 145.05 108.87 43.738 40.362 16.554 +453 "C16" 43.273 69.681 61.261 4.9159 8.3065 7.2559 +454 "D16" 154.15 106.72 65.606 37.197 27.832 7.4910 +455 "E16" 149.19 148.83 193.98 36.691 35.876 51.695 +456 "F16" 157.80 111.38 47.573 38.836 30.036 4.3338 +457 "G16" 100.61 79.449 149.13 17.555 13.363 28.888 +458 "H16" 206.92 207.61 211.44 75.466 77.836 67.216 +459 "I16" 97.895 82.272 66.348 16.954 15.112 7.2992 +460 "J16" 172.80 178.46 82.595 47.072 52.200 10.669 +461 "K16" 183.90 191.17 190.75 55.962 60.759 50.287 +462 "L16" 75.048 76.021 151.02 10.165 9.7715 28.705 +463 "M16" 159.42 88.282 47.938 36.859 23.500 3.8297 +464 "N16" 133.24 176.09 150.50 29.735 43.076 29.229 +465 "O16" 59.749 48.251 40.198 7.3545 6.2503 2.9745 +466 "P16" 171.06 168.69 161.58 46.114 46.965 33.568 +467 "Q16" 53.260 54.841 37.700 6.2218 6.8107 2.7776 +468 "R16" 147.03 76.735 66.424 29.663 17.214 6.8286 +469 "S16" 63.206 78.809 107.93 8.0381 10.138 16.410 +470 "T16" 150.22 77.352 47.226 31.088 18.734 3.6263 +471 "U16" 97.824 159.49 134.64 18.911 32.215 23.899 +472 "V16" 133.39 81.567 151.23 26.145 16.883 27.363 +473 "W16" 155.32 82.024 48.477 33.705 20.761 3.7986 +474 "X16" 81.301 147.86 56.013 14.361 27.487 7.1744 +475 "Y16" 141.53 112.75 178.08 29.882 22.982 39.138 +476 "Z16" 31.556 30.196 30.075 2.4233 2.4412 1.9648 +477 "2A16" 166.04 149.78 129.15 42.519 39.188 21.270 +478 "2B16" 53.939 48.402 100.70 5.2349 4.4461 13.823 +479 "2C16" 152.96 83.435 68.500 32.492 19.465 7.0806 +480 "2D16" 141.97 181.00 131.63 33.454 46.863 22.481 +481 "A17" 93.002 152.57 112.99 18.355 31.722 19.048 +482 "B17" 48.562 44.595 81.595 4.8626 4.2833 10.526 +483 "C17" 155.24 137.12 108.13 39.631 36.092 16.781 +484 "D17" 37.723 54.820 48.270 3.8471 5.8319 4.8962 +485 "E17" 163.04 158.68 133.73 43.491 44.349 22.904 +486 "F17" 155.10 81.151 47.477 35.028 21.444 3.8305 +487 "G17" 119.76 108.26 175.73 23.826 20.302 40.464 +488 "H17" 155.83 188.69 108.40 44.211 56.679 16.435 +489 "I17" 54.125 49.417 43.252 6.5115 6.2807 3.6004 +490 "J17" 146.89 182.65 155.76 35.464 48.530 31.500 +491 "K17" 148.71 77.345 50.119 31.217 18.833 4.2081 +492 "L17" 53.925 41.854 39.291 6.1796 5.0138 3.0160 +493 "M17" 105.46 156.83 167.45 21.355 33.511 36.981 +494 "N17" 149.16 79.222 103.08 31.382 17.339 13.539 +495 "O17" 109.98 107.89 138.78 20.515 20.076 24.934 +496 "P17" 151.99 78.765 47.620 32.143 19.447 3.7592 +497 "Q17" 195.13 169.06 200.08 60.501 50.532 52.708 +498 "R17" 73.599 136.55 49.271 12.657 24.420 5.6873 +499 "S17" 37.757 33.718 34.938 3.4355 3.1639 2.5372 +500 "T17" 132.61 142.77 197.68 28.192 29.771 51.322 +501 "U17" 181.82 145.93 103.48 52.660 42.651 15.019 +502 "V17" 204.10 203.91 210.35 69.823 71.393 63.731 +503 "W17" 175.82 179.36 52.229 44.995 50.413 5.2421 +504 "X17" 155.69 156.50 143.88 37.401 38.967 26.702 +505 "Y17" 65.731 44.495 80.654 8.0339 5.5483 9.9052 +506 "Z17" 67.930 138.21 88.916 10.382 21.829 11.599 +507 "2A17" 156.40 87.866 68.881 34.325 21.131 7.2263 +508 "2B17" 68.870 68.990 41.254 9.1863 9.9839 3.1512 +509 "2C17" 209.60 202.66 207.60 75.534 73.388 61.922 +510 "2D17" 108.97 87.062 152.98 19.258 14.916 29.290 +511 "A18" 200.70 204.40 197.90 74.089 78.770 59.424 +512 "B18" 164.93 117.44 177.68 42.903 30.204 40.715 +513 "C18" 61.227 72.827 56.013 8.7363 10.837 6.0872 +514 "D18" 204.51 199.19 195.95 75.509 74.636 56.066 +515 "E18" 73.692 73.322 148.06 10.413 9.8011 28.727 +516 "F18" 68.313 128.24 45.392 11.836 22.861 5.4226 +517 "G18" 131.14 85.288 152.52 26.954 18.177 29.358 +518 "H18" 89.609 153.68 93.128 16.220 29.699 13.154 +519 "I18" 30.179 29.676 28.922 2.3647 2.3980 1.9090 +520 "J18" 208.65 210.69 209.48 77.786 81.283 65.463 +521 "K18" 88.863 70.346 63.498 14.363 11.898 6.7644 +522 "L18" 197.92 177.16 54.602 60.378 57.128 5.2726 +523 "M18" 143.55 91.470 162.00 30.554 20.123 31.743 +524 "N18" 121.99 131.52 122.44 24.748 27.645 20.451 +525 "O18" 172.04 115.00 91.328 44.929 31.003 12.389 +526 "P18" 81.187 74.923 148.64 11.881 10.425 27.990 +527 "Q18" 117.91 169.48 101.12 25.737 39.690 14.823 +528 "R18" 183.93 145.62 52.297 52.300 42.856 4.6545 +529 "S18" 55.452 105.38 65.438 7.2126 14.429 7.1944 +530 "T18" 211.11 208.92 210.90 77.679 78.425 65.193 +531 "U18" 177.41 124.39 134.00 47.084 32.209 22.319 +532 "V18" 53.506 90.891 78.889 6.6683 11.848 10.189 +533 "W18" 197.65 205.13 206.81 65.207 70.970 60.729 +534 "X18" 51.396 86.860 43.674 6.2806 11.330 4.1095 +535 "Y18" 193.58 175.18 113.92 60.571 56.044 16.070 +536 "Z18" 96.313 103.94 178.60 15.673 16.045 40.153 +537 "2A18" 168.53 106.08 128.73 41.178 25.901 19.845 +538 "2B18" 85.496 104.15 136.89 13.693 16.674 24.407 +539 "2C18" 208.09 210.26 179.31 74.223 78.952 41.733 +540 "2D18" 161.94 92.492 50.116 38.135 24.817 4.1395 +541 "A19" 156.71 112.54 101.12 39.239 29.094 15.479 +542 "B19" 42.513 58.501 40.536 4.7416 7.0454 3.4644 +543 "C19" 172.17 152.13 143.40 49.395 43.657 28.522 +544 "D19" 159.73 183.13 54.703 42.332 52.372 5.7052 +545 "E19" 119.21 105.48 95.518 24.242 22.424 14.026 +546 "F19" 30.235 29.764 29.269 2.4551 2.5226 2.0256 +547 "G19" 88.689 134.99 136.69 16.677 25.667 25.825 +548 "H19" 86.392 53.901 45.566 13.124 8.8453 3.5763 +549 "I19" 126.88 158.15 160.78 28.527 37.076 34.358 +550 "J19" 120.42 79.125 64.241 22.891 16.490 6.9749 +551 "K19" 108.34 160.80 164.56 22.666 35.279 35.631 +552 "L19" 49.327 39.952 38.592 5.4212 4.5484 2.9627 +553 "M19" 67.917 128.27 44.976 11.199 21.925 5.4425 +554 "N19" 127.84 62.080 45.945 22.708 12.897 3.6335 +555 "O19" 74.380 138.45 130.11 12.507 23.738 22.498 +556 "P19" 30.060 29.337 28.817 2.3442 2.3896 1.9267 +557 "Q19" 147.97 73.539 46.480 30.303 17.749 3.5777 +558 "R19" 75.153 76.608 151.15 10.104 9.7374 28.448 +559 "S19" 78.339 144.41 52.936 13.901 26.685 6.3873 +560 "T19" 31.312 30.556 30.767 2.4391 2.4780 2.0610 +561 "U19" 169.32 177.98 203.35 45.972 49.473 57.247 +562 "V19" 44.471 72.376 45.634 4.8275 8.3485 3.9886 +563 "W19" 199.02 205.39 55.979 63.154 70.855 7.5811 +564 "X19" 90.125 81.954 73.039 14.863 14.166 8.5770 +565 "Y19" 207.33 211.44 212.22 74.340 78.986 66.286 +566 "Z19" 182.95 126.85 175.69 49.996 33.344 36.894 +567 "2A19" 77.857 90.598 163.13 10.165 11.287 33.081 +568 "2B19" 202.16 204.23 49.052 62.642 69.515 6.2139 +569 "2C19" 162.94 96.440 68.740 38.429 24.741 7.3479 +570 "2D19" 83.952 84.116 160.97 12.944 12.283 32.608 +END_DATA diff --git a/scanin/CMP_Digital_Target-4.ti2 b/scanin/CMP_Digital_Target-4.ti2 new file mode 100644 index 0000000..e4b15e9 --- /dev/null +++ b/scanin/CMP_Digital_Target-4.ti2 @@ -0,0 +1,601 @@ +CTI2 + +DESCRIPTOR "Argyll Calibration Target chart information 2 for Christopher Metarie Digital Target 3" +ORIGINATOR "Argyll printtarg" +CREATED "Wed Sep 12 00:02:26 2007" +KEYWORD "TARGET_INSTRUMENT" +TARGET_INSTRUMENT "GretagMacbeth i1 Pro" +KEYWORD "ACCURATE_EXPECTED_VALUES" +ACCURATE_EXPECTED_VALUES "true" +KEYWORD "COLOR_REP" +COLOR_REP "RGB" +KEYWORD "STEPS_IN_PASS" +STEPS_IN_PASS "30" +KEYWORD "PASSES_IN_STRIPS2" +PASSES_IN_STRIPS2 "19" +KEYWORD "STRIP_INDEX_PATTERN" +STRIP_INDEX_PATTERN "0-9,@-9,@-9;1-999" +KEYWORD "PATCH_INDEX_PATTERN" +PATCH_INDEX_PATTERN "A-Z, 2-9" +KEYWORD "INDEX_ORDER" +INDEX_ORDER "PATCH_THEN_STRIP" + +KEYWORD "SAMPLE_LOC" +NUMBER_OF_FIELDS 8 +BEGIN_DATA_FORMAT +SAMPLE_ID SAMPLE_LOC RGB_R RGB_G RGB_B XYZ_X XYZ_Y XYZ_Z +END_DATA_FORMAT + +NUMBER_OF_SETS 570 +BEGIN_DATA +1 "A1" 106.60 73.896 140.50 19.991 14.120 27.886 +2 "B1" 101.22 157.76 91.298 19.926 34.054 14.005 +3 "C1" 56.474 54.712 116.20 6.2319 5.6339 19.078 +4 "D1" 142.23 143.96 106.67 32.785 35.198 16.672 +5 "E1" 161.58 92.303 143.82 38.996 22.658 25.805 +6 "F1" 90.405 96.497 94.153 16.011 17.612 14.561 +7 "G1" 163.39 98.124 88.178 39.496 24.997 12.003 +8 "H1" 63.278 55.370 115.21 7.4905 6.2468 18.358 +9 "I1" 71.385 133.64 49.363 11.987 23.286 6.5928 +10 "J1" 97.757 75.383 143.28 16.591 12.444 27.331 +11 "K1" 194.49 193.52 200.39 63.038 64.179 58.403 +12 "L1" 43.729 37.037 36.612 4.3513 3.8393 2.7750 +13 "M1" 128.36 143.53 178.51 27.386 30.873 42.527 +14 "N1" 136.71 176.12 173.90 31.789 44.281 40.439 +15 "O1" 190.25 190.03 173.26 59.453 61.985 40.335 +16 "P1" 139.89 69.074 45.054 26.783 15.713 3.5833 +17 "Q1" 34.433 40.188 37.667 3.0238 3.6843 3.0876 +18 "R1" 87.362 153.04 89.833 15.462 28.885 12.776 +19 "S1" 124.79 84.048 151.84 23.694 16.421 29.352 +20 "T1" 201.42 206.76 79.283 65.900 73.381 11.377 +21 "U1" 59.875 104.70 93.370 8.3333 15.036 13.749 +22 "V1" 205.39 208.60 159.63 72.416 77.985 33.423 +23 "W1" 91.572 136.12 167.03 16.393 25.254 38.122 +24 "X1" 30.336 29.306 28.957 2.3144 2.3581 1.9303 +25 "Y1" 132.60 110.17 107.91 27.102 23.276 16.813 +26 "Z1" 32.956 33.215 31.185 2.6994 2.8850 2.2332 +27 "2A1" 70.282 129.32 46.946 10.757 20.588 4.8216 +28 "2B1" 159.00 173.65 202.91 40.765 45.919 58.857 +29 "2C1" 121.19 88.150 161.84 22.864 16.381 33.839 +30 "2D1" 136.59 101.50 125.83 28.289 21.404 20.483 +31 "A2" 75.414 80.525 150.43 10.412 10.567 30.978 +32 "B2" 128.64 63.027 42.872 24.139 14.085 3.5857 +33 "C2" 101.62 116.40 166.26 19.473 21.752 38.376 +34 "D2" 129.62 78.772 146.55 26.280 16.991 28.035 +35 "E2" 164.20 144.75 82.589 42.573 39.671 9.6556 +36 "F2" 96.904 110.83 179.21 17.113 18.705 43.690 +37 "G2" 157.24 84.071 46.359 35.850 22.548 3.8554 +38 "H2" 84.439 70.424 140.26 13.037 10.392 26.425 +39 "I2" 81.661 147.44 58.864 14.946 28.262 8.1825 +40 "J2" 35.433 35.856 32.072 3.1780 3.3914 2.3047 +41 "K2" 150.66 144.08 140.58 35.880 35.178 26.683 +42 "L2" 158.35 93.379 154.74 36.434 22.147 28.386 +43 "M2" 100.38 93.492 99.897 17.689 17.022 15.072 +44 "N2" 158.93 93.968 95.921 36.396 23.022 13.623 +45 "O2" 102.60 137.21 171.09 19.884 26.988 39.544 +46 "P2" 74.932 50.703 44.902 10.294 7.4271 3.4839 +47 "Q2" 115.12 165.78 166.70 24.415 37.008 36.288 +48 "R2" 157.97 92.663 150.58 36.078 21.682 26.898 +49 "S2" 83.913 88.787 161.27 12.232 12.247 33.412 +50 "T2" 72.772 133.20 48.154 12.486 23.920 5.4357 +51 "U2" 155.64 177.45 175.23 38.913 47.091 40.794 +52 "V2" 65.311 50.797 44.712 8.3779 6.8387 3.7119 +53 "W2" 30.304 29.389 28.630 2.3401 2.3804 1.9157 +54 "X2" 98.383 112.57 76.501 17.501 20.678 9.7225 +55 "Y2" 196.95 176.56 81.174 60.324 56.490 9.7029 +56 "Z2" 106.87 76.461 64.020 18.340 14.257 6.9452 +57 "2A2" 149.29 180.57 55.756 39.051 50.700 6.0515 +58 "2B2" 46.850 72.093 42.887 5.3134 8.7205 3.7883 +59 "2C2" 126.21 86.097 104.74 24.040 16.842 14.641 +60 "2D2" 68.443 138.05 59.668 10.963 22.720 8.1563 +61 "A3" 40.703 34.668 43.170 3.2215 2.8069 3.1344 +62 "B3" 140.80 177.61 130.47 35.703 49.122 24.276 +63 "C3" 71.422 72.467 144.63 9.6710 9.2674 28.141 +64 "D3" 157.83 159.05 109.87 39.368 42.329 16.693 +65 "E3" 74.511 78.412 148.91 9.8448 9.8037 29.501 +66 "F3" 172.35 192.98 167.60 50.040 60.997 38.371 +67 "G3" 72.505 72.322 146.66 9.8731 9.2375 28.216 +68 "H3" 132.85 167.63 50.020 31.926 43.409 5.2962 +69 "I3" 99.822 132.27 193.48 18.889 24.530 52.235 +70 "J3" 158.78 88.817 87.144 36.271 22.167 11.952 +71 "K3" 146.32 156.61 192.38 34.281 37.060 50.573 +72 "L3" 30.978 30.641 29.826 2.4511 2.5353 2.0398 +73 "M3" 146.27 153.30 150.57 34.120 37.136 30.510 +74 "N3" 144.16 70.919 46.534 28.309 16.461 3.7229 +75 "O3" 85.091 72.947 144.27 12.851 10.508 27.052 +76 "P3" 122.91 131.12 67.881 24.532 27.910 7.4170 +77 "Q3" 140.27 116.77 178.48 29.800 23.719 40.761 +78 "R3" 73.020 103.31 46.082 11.420 17.249 4.2060 +79 "S3" 148.58 74.828 46.145 30.098 17.923 3.6411 +80 "T3" 92.676 106.61 179.17 15.102 16.455 41.548 +81 "U3" 89.067 149.36 56.522 16.816 29.880 6.2892 +82 "V3" 104.27 103.98 177.68 19.054 17.886 40.635 +83 "W3" 122.27 64.970 44.965 21.160 13.146 3.6418 +84 "X3" 190.80 157.08 167.65 56.827 44.647 36.033 +85 "Y3" 55.033 94.759 44.077 7.3224 13.350 4.3645 +86 "Z3" 157.08 85.576 87.558 34.447 20.515 11.595 +87 "2A3" 79.250 88.578 159.52 10.795 11.448 32.464 +88 "2B3" 108.15 127.71 55.172 20.617 25.691 5.5795 +89 "2C3" 78.102 75.847 150.05 11.126 10.174 28.914 +90 "2D3" 202.83 194.20 199.16 68.724 66.102 56.410 +91 "A4" 105.09 86.729 157.14 19.671 15.554 33.919 +92 "B4" 99.696 102.26 43.923 17.501 19.753 3.8498 +93 "C4" 107.26 130.81 190.72 21.509 25.734 51.674 +94 "D4" 178.30 141.51 75.719 51.958 42.451 9.1213 +95 "E4" 86.201 111.97 176.39 14.112 17.806 42.697 +96 "F4" 192.41 193.92 143.50 61.487 65.884 27.427 +97 "G4" 161.20 95.317 155.94 38.420 23.239 29.457 +98 "H4" 74.863 77.945 149.59 9.8759 9.7311 29.126 +99 "I4" 207.61 208.23 184.16 75.793 79.718 46.695 +100 "J4" 70.931 101.90 131.71 10.595 15.480 24.653 +101 "K4" 147.01 94.545 162.80 32.187 21.331 32.814 +102 "L4" 81.586 103.83 104.84 13.777 17.753 16.663 +103 "M4" 141.06 69.848 45.247 27.339 16.027 3.5603 +104 "N4" 90.494 151.07 150.65 16.922 28.995 29.336 +105 "O4" 55.294 41.016 63.313 6.3066 4.7610 6.9921 +106 "P4" 111.84 140.47 103.22 22.390 29.210 15.592 +107 "Q4" 144.45 93.249 162.31 30.657 20.369 32.268 +108 "R4" 105.31 104.82 101.31 19.152 19.807 15.592 +109 "S4" 79.325 137.68 48.973 13.948 25.671 5.2122 +110 "T4" 84.189 150.82 120.01 14.991 27.898 19.745 +111 "U4" 81.413 52.379 93.432 11.486 7.6381 12.484 +112 "V4" 76.459 77.531 42.048 10.749 11.899 3.2945 +113 "W4" 211.28 212.44 213.00 77.699 80.782 67.995 +114 "X4" 125.79 102.06 67.469 24.430 21.610 7.1800 +115 "Y4" 36.736 36.340 46.306 3.2104 3.1999 4.2513 +116 "Z4" 83.114 150.29 61.891 14.450 27.763 8.5197 +117 "2A4" 117.71 90.574 160.37 21.679 16.235 32.574 +118 "2B4" 89.463 153.87 72.494 15.737 29.267 10.078 +119 "2C4" 42.498 47.832 65.570 3.9226 4.4418 7.5674 +120 "2D4" 115.91 156.34 101.73 24.022 34.375 15.022 +121 "A5" 100.43 57.576 43.875 16.920 10.945 3.6233 +122 "B5" 139.57 140.52 191.37 32.876 32.373 51.547 +123 "C5" 106.24 157.82 63.346 23.454 37.144 7.5202 +124 "D5" 120.63 119.68 128.56 24.762 25.266 23.702 +125 "E5" 144.32 70.530 44.643 29.192 16.958 3.5359 +126 "F5" 112.12 164.88 139.23 23.640 37.186 26.447 +127 "G5" 103.37 136.87 47.413 20.387 28.842 4.7028 +128 "H5" 36.251 41.780 35.395 3.3636 4.0809 2.6833 +129 "I5" 111.24 162.80 164.26 23.272 35.820 35.198 +130 "J5" 143.56 87.562 156.55 30.642 19.573 30.103 +131 "K5" 109.54 163.06 164.19 22.753 35.416 35.064 +132 "L5" 79.627 52.133 45.354 11.209 7.8786 3.5144 +133 "M5" 92.456 152.33 153.19 17.513 29.721 30.234 +134 "N5" 34.714 33.013 32.281 2.9935 2.9559 2.2837 +135 "O5" 166.35 175.94 163.99 44.139 49.035 35.423 +136 "P5" 89.669 79.549 47.144 14.200 13.959 3.6761 +137 "Q5" 191.24 182.85 188.48 59.021 56.831 48.262 +138 "R5" 51.675 70.899 41.770 6.3401 9.2262 3.4989 +139 "S5" 170.53 177.54 173.76 45.700 49.818 40.124 +140 "T5" 63.890 93.942 45.687 9.3142 14.437 4.0636 +141 "U5" 30.168 29.299 28.940 2.3535 2.3975 1.9290 +142 "V5" 133.08 133.14 122.05 27.766 28.925 20.091 +143 "W5" 36.054 32.923 33.276 3.0887 2.9300 2.3596 +144 "X5" 61.314 111.77 45.755 8.7239 16.803 5.0276 +145 "Y5" 203.39 209.40 208.06 70.161 75.882 63.247 +146 "Z5" 76.353 77.670 109.77 11.191 11.244 16.654 +147 "2A5" 193.86 202.18 186.73 62.394 68.771 47.096 +148 "2B5" 84.630 73.965 145.61 12.640 10.459 27.333 +149 "2C5" 68.392 129.05 45.336 11.160 21.761 5.5099 +150 "2D5" 210.46 210.49 195.89 77.413 80.592 53.936 +151 "A6" 156.79 90.614 148.03 37.703 22.453 27.499 +152 "B6" 88.481 111.82 178.46 14.943 18.301 44.058 +153 "C6" 167.90 108.82 66.983 44.282 30.956 7.9185 +154 "D6" 66.578 110.85 54.360 10.440 18.144 6.5076 +155 "E6" 148.31 87.735 154.80 32.892 20.486 29.274 +156 "F6" 93.611 155.13 115.73 17.819 31.263 19.184 +157 "G6" 40.190 39.280 58.763 3.7468 3.6058 6.3752 +158 "H6" 170.89 152.59 147.19 45.907 41.132 28.818 +159 "I6" 46.469 44.545 75.326 4.4472 4.1158 9.1204 +160 "J6" 102.48 151.18 180.03 20.388 31.549 44.358 +161 "K6" 30.872 30.164 29.516 2.3970 2.4515 1.9961 +162 "L6" 83.294 137.00 98.315 14.323 24.343 14.536 +163 "M6" 30.722 30.150 29.446 2.3623 2.4293 1.9541 +164 "N6" 163.74 151.67 194.83 41.190 36.767 50.714 +165 "O6" 199.83 203.65 49.970 62.357 69.847 6.3069 +166 "P6" 77.512 86.873 159.07 10.124 10.811 31.915 +167 "Q6" 200.99 194.31 190.45 67.127 65.762 49.352 +168 "R6" 165.39 100.99 154.68 39.128 23.959 27.822 +169 "S6" 69.496 98.026 61.986 10.413 15.222 6.7952 +170 "T6" 167.68 124.93 146.98 41.195 30.074 26.292 +171 "U6" 62.706 68.483 60.211 8.4099 9.5591 6.5834 +172 "V6" 174.63 108.06 166.14 43.942 26.976 32.439 +173 "W6" 138.60 174.02 106.27 33.397 44.263 15.513 +174 "X6" 192.12 161.59 197.05 56.629 45.672 50.137 +175 "Y6" 71.207 70.503 63.173 10.198 10.583 6.9283 +176 "Z6" 171.42 121.85 182.26 42.782 29.822 40.386 +177 "2A6" 193.77 197.98 207.14 61.567 65.013 61.274 +178 "2B6" 117.80 82.965 151.94 21.335 15.115 28.916 +179 "2C6" 36.305 39.517 34.462 3.2203 3.7212 2.6005 +180 "2D6" 152.48 145.44 148.89 35.799 34.854 29.422 +181 "A7" 93.637 153.35 73.710 19.123 33.078 10.667 +182 "B7" 83.277 73.755 144.52 12.915 10.831 28.225 +183 "C7" 206.85 206.70 197.33 77.518 80.587 57.622 +184 "D7" 77.454 73.349 146.72 11.348 10.154 28.703 +185 "E7" 70.809 132.64 47.023 12.442 24.254 5.6475 +186 "F7" 91.049 88.345 163.10 15.345 13.969 34.910 +187 "G7" 177.87 190.87 53.018 52.703 61.988 5.9513 +188 "H7" 75.960 87.720 159.98 9.9056 10.888 32.881 +189 "I7" 199.48 192.77 181.55 67.471 66.483 44.705 +190 "J7" 64.713 68.090 67.610 8.8426 9.6268 8.1730 +191 "K7" 193.08 175.48 139.54 61.925 56.855 24.968 +192 "L7" 75.430 87.876 159.79 9.6349 10.726 32.427 +193 "M7" 133.24 173.17 56.742 32.435 45.157 6.1480 +194 "N7" 148.49 75.098 46.216 30.427 18.146 3.6270 +195 "O7" 97.134 97.177 86.559 16.928 17.695 11.911 +196 "P7" 191.20 160.30 54.685 56.094 48.894 4.9467 +197 "Q7" 80.068 80.251 125.32 11.934 11.778 20.573 +198 "R7" 83.368 147.19 55.358 15.285 28.434 6.3346 +199 "S7" 37.747 44.719 36.907 3.5054 4.3615 2.7830 +200 "T7" 146.52 175.26 205.50 35.099 44.589 58.771 +201 "U7" 133.97 82.941 152.98 26.155 17.005 28.079 +202 "V7" 63.182 103.22 97.125 8.9086 14.924 14.071 +203 "W7" 144.22 147.07 76.384 30.611 33.536 8.6858 +204 "X7" 212.78 213.19 211.89 79.113 81.784 66.503 +205 "Y7" 77.896 86.298 158.37 10.240 10.764 31.229 +206 "Z7" 71.313 133.52 47.389 11.976 23.218 5.4228 +207 "2A7" 75.926 78.650 151.98 9.9976 9.7574 28.929 +208 "2B7" 118.08 168.98 98.781 25.572 39.297 14.262 +209 "2C7" 207.34 198.34 43.623 66.257 69.908 5.8960 +210 "2D7" 92.639 108.26 179.66 14.893 16.603 41.626 +211 "A8" 69.904 137.36 58.325 12.100 24.359 8.4071 +212 "B8" 167.09 144.55 49.599 42.436 39.900 4.7260 +213 "C8" 111.10 78.672 121.83 20.574 15.216 20.136 +214 "D8" 74.340 141.34 56.829 12.701 25.255 8.1803 +215 "E8" 104.13 74.055 141.65 18.324 13.039 26.409 +216 "F8" 90.075 154.61 90.911 16.724 30.035 13.212 +217 "G8" 36.341 33.896 36.868 3.3200 3.1831 3.0291 +218 "H8" 101.65 159.66 134.07 20.304 33.570 24.443 +219 "I8" 34.216 33.499 37.712 2.9169 2.9009 3.0168 +220 "J8" 174.41 165.56 173.38 48.038 46.099 39.891 +221 "K8" 46.252 66.300 42.397 5.2241 8.0427 3.5985 +222 "L8" 152.69 184.12 182.69 38.619 50.368 44.407 +223 "M8" 30.240 29.863 28.939 2.3428 2.3959 1.9273 +224 "N8" 35.593 35.467 34.190 3.1956 3.3116 2.6415 +225 "O8" 71.728 71.553 70.937 10.494 10.847 8.8081 +226 "P8" 115.92 116.10 114.68 22.233 23.005 18.548 +227 "Q8" 159.85 160.38 159.13 39.317 40.778 33.056 +228 "R8" 196.60 197.21 197.12 63.147 65.480 53.862 +229 "S8" 137.57 112.53 140.33 28.252 23.514 24.400 +230 "T8" 80.940 142.13 50.952 14.520 26.909 5.4756 +231 "U8" 99.365 133.93 196.43 18.057 24.054 51.817 +232 "V8" 30.957 30.566 29.813 2.3402 2.3911 1.9209 +233 "W8" 212.09 210.69 210.55 77.838 79.255 64.883 +234 "X8" 90.920 71.799 46.751 14.232 12.342 3.5677 +235 "Y8" 137.72 177.30 175.40 31.451 43.594 39.472 +236 "Z8" 39.524 49.911 38.685 3.8429 5.0881 3.0661 +237 "2A8" 130.39 176.13 127.05 27.844 41.491 21.140 +238 "2B8" 31.904 31.437 30.690 2.4921 2.5648 2.0613 +239 "2C8" 149.77 158.18 196.00 34.635 36.777 50.964 +240 "2D8" 30.719 29.824 29.600 2.3436 2.3905 1.9440 +241 "A9" 160.64 188.72 135.75 46.811 59.109 25.406 +242 "B9" 151.09 113.48 161.82 35.695 26.905 33.928 +243 "C9" 56.378 101.12 44.028 8.0578 15.313 4.8058 +244 "D9" 200.86 192.61 183.06 70.562 68.540 46.575 +245 "E9" 77.639 89.149 161.20 10.633 11.656 33.787 +246 "F9" 183.43 148.52 132.23 54.113 43.360 23.933 +247 "G9" 53.868 83.869 77.703 7.1200 11.358 10.328 +248 "H9" 144.68 93.693 163.06 31.237 20.786 32.756 +249 "I9" 80.625 147.05 117.46 14.469 27.174 19.553 +250 "J9" 82.612 53.093 45.342 11.813 8.1727 3.4750 +251 "K9" 179.05 178.11 205.03 51.613 51.265 59.093 +252 "L9" 68.256 128.21 45.397 11.232 21.889 5.3482 +253 "M9" 30.122 29.559 28.786 2.3389 2.3932 1.9205 +254 "N9" 44.132 44.030 43.113 4.6543 4.8363 3.9004 +255 "O9" 77.603 77.496 77.212 11.973 12.444 10.082 +256 "P9" 123.38 123.35 123.35 24.548 25.410 20.720 +257 "Q9" 167.61 168.12 167.11 43.270 44.842 36.215 +258 "R9" 202.61 204.17 205.53 68.113 71.034 59.864 +259 "S9" 152.34 81.269 59.657 31.468 18.903 5.4734 +260 "T9" 36.525 39.233 37.120 3.2297 3.6435 2.9170 +261 "U9" 147.79 112.59 105.57 31.779 25.042 15.321 +262 "V9" 128.85 175.42 85.449 30.098 43.673 10.856 +263 "W9" 202.12 182.11 203.04 65.360 57.273 55.175 +264 "X9" 58.841 111.22 46.014 7.8261 15.682 5.0934 +265 "Y9" 150.27 74.574 46.780 30.151 17.603 3.5424 +266 "Z9" 91.373 72.814 142.15 14.169 10.872 25.545 +267 "2A9" 178.42 178.87 165.68 49.740 51.961 35.295 +268 "2B9" 110.21 82.066 150.83 19.293 14.167 28.533 +269 "2C9" 115.57 141.00 82.227 23.305 29.469 10.465 +270 "2D9" 120.44 87.308 156.62 22.420 16.254 30.792 +271 "A10" 54.278 98.104 59.100 7.4766 14.316 6.7672 +272 "B10" 141.49 142.92 50.130 30.693 34.185 4.8132 +273 "C10" 69.545 135.98 93.417 11.568 23.235 13.773 +274 "D10" 30.772 30.009 29.471 2.4307 2.4999 2.0171 +275 "E10" 140.52 89.479 159.03 30.140 19.949 31.751 +276 "F10" 88.149 135.62 165.23 15.810 25.353 37.521 +277 "G10" 30.508 30.075 29.389 2.4272 2.4936 1.9887 +278 "H10" 75.794 144.13 86.030 12.549 25.096 11.562 +279 "I10" 29.881 29.286 28.915 2.3402 2.3788 1.9223 +280 "J10" 78.427 139.08 135.09 13.387 24.235 23.958 +281 "K10" 127.69 103.24 52.122 25.478 22.853 4.3681 +282 "L10" 47.518 38.484 37.887 5.0366 4.2550 2.8902 +283 "M10" 30.202 29.466 28.978 2.3374 2.3915 1.9194 +284 "N10" 50.671 50.438 49.901 5.8942 6.1054 4.9143 +285 "O10" 84.087 84.218 84.130 13.462 14.013 11.428 +286 "P10" 130.92 131.27 131.19 27.055 28.014 23.007 +287 "Q10" 174.24 174.94 173.31 47.406 49.169 39.386 +288 "R10" 208.46 209.75 212.17 73.974 77.043 65.729 +289 "S10" 61.440 61.759 68.112 7.8358 8.0794 7.9176 +290 "T10" 189.59 154.63 195.61 54.395 42.563 48.165 +291 "U10" 70.065 139.76 58.155 11.113 22.841 7.7084 +292 "V10" 34.382 38.877 37.374 2.9394 3.4387 2.9247 +293 "W10" 81.185 148.91 88.683 13.284 25.973 11.867 +294 "X10" 31.337 30.706 30.647 2.4768 2.5120 2.1182 +295 "Y10" 132.10 124.54 122.36 27.102 26.481 19.829 +296 "Z10" 128.86 77.259 44.848 23.978 16.698 3.6586 +297 "2A10" 121.07 144.71 145.24 24.659 30.178 27.108 +298 "2B10" 91.404 54.498 76.524 13.618 8.1445 8.4106 +299 "2C10" 122.45 129.19 129.52 24.412 26.496 22.533 +300 "2D10" 52.091 43.712 85.349 5.2897 4.2252 10.803 +301 "A11" 95.121 56.945 109.13 15.662 9.9371 16.757 +302 "B11" 49.247 84.978 41.595 6.3528 11.756 4.1276 +303 "C11" 201.38 188.28 201.57 70.247 65.054 58.834 +304 "D11" 165.99 106.71 48.883 42.904 30.283 4.3741 +305 "E11" 142.45 151.87 140.77 33.675 37.292 27.259 +306 "F11" 59.895 43.373 70.686 7.3260 5.3398 8.4321 +307 "G11" 185.60 179.80 175.52 56.748 56.026 41.441 +308 "H11" 62.810 62.001 39.464 8.1585 8.7147 3.0001 +309 "I11" 182.38 181.99 177.01 54.512 56.195 42.466 +310 "J11" 44.613 62.579 56.523 4.9736 7.2275 6.1574 +311 "K11" 177.26 171.26 154.02 50.413 50.352 29.675 +312 "L11" 81.706 58.921 119.57 11.783 8.3671 18.993 +313 "M11" 30.648 29.769 29.464 2.4004 2.4632 1.9865 +314 "N11" 56.534 56.324 55.689 7.0502 7.2979 5.9348 +315 "O11" 89.911 89.936 88.980 15.157 15.663 12.643 +316 "P11" 140.77 141.41 140.88 30.809 31.935 26.037 +317 "Q11" 179.84 180.21 178.58 51.029 52.827 42.179 +318 "R11" 212.60 213.84 215.53 78.892 82.077 69.152 +319 "S11" 66.493 66.184 65.558 9.0391 9.3614 7.5795 +320 "T11" 187.32 160.61 146.99 54.688 46.067 27.270 +321 "U11" 59.842 44.929 41.517 7.0672 5.5203 3.1542 +322 "V11" 100.71 151.70 177.40 19.018 30.251 40.808 +323 "W11" 32.433 32.983 31.555 2.6438 2.7813 2.1741 +324 "X11" 103.41 161.56 150.03 20.294 33.254 28.954 +325 "Y11" 49.930 46.756 84.028 4.7917 4.3367 10.461 +326 "Z11" 157.24 187.57 185.20 39.678 51.335 44.730 +327 "2A11" 69.840 130.51 46.639 11.397 22.075 5.4606 +328 "2B11" 164.73 190.77 189.92 43.396 54.386 47.692 +329 "2C11" 67.660 57.565 50.639 9.0264 8.0855 4.5632 +330 "2D11" 146.88 73.255 46.894 29.263 17.239 3.6542 +331 "A12" 149.18 183.06 84.464 42.435 55.238 11.960 +332 "B12" 72.446 71.794 146.17 10.244 9.5241 28.550 +333 "C12" 111.58 163.80 82.344 25.557 39.490 11.397 +334 "D12" 67.115 62.023 67.669 9.5983 9.1448 8.3283 +335 "E12" 202.25 206.59 144.16 71.285 77.444 27.463 +336 "F12" 142.52 142.52 149.46 32.592 33.399 30.058 +337 "G12" 52.218 46.843 96.005 5.1430 4.3541 13.182 +338 "H12" 95.301 157.62 128.66 18.517 32.087 22.562 +339 "I12" 58.804 42.199 45.333 6.9977 5.1440 3.8014 +340 "J12" 201.67 207.01 112.57 69.246 76.042 17.844 +341 "K12" 76.878 56.433 113.86 10.642 7.6407 17.593 +342 "L12" 110.43 164.87 121.89 21.927 35.477 19.681 +343 "M12" 31.073 30.502 29.828 2.4287 2.4921 1.9949 +344 "N12" 60.863 60.999 60.221 7.9937 8.3172 6.7360 +345 "O12" 97.436 97.414 96.425 17.120 17.761 14.285 +346 "P12" 146.96 147.76 147.68 33.242 34.486 28.221 +347 "Q12" 186.04 186.49 184.52 55.136 57.000 45.303 +348 "R12" 217.03 217.69 217.80 84.047 87.070 71.496 +349 "S12" 173.81 166.67 164.48 46.799 45.618 34.284 +350 "T12" 61.998 59.133 126.43 6.6921 6.0185 19.773 +351 "U12" 133.08 178.53 107.01 31.583 45.365 15.646 +352 "V12" 159.59 92.307 67.569 35.975 22.808 7.0470 +353 "W12" 92.823 93.091 102.67 15.632 16.004 15.333 +354 "X12" 153.31 79.910 48.385 32.188 19.569 3.7849 +355 "Y12" 76.169 77.765 152.48 9.9981 9.6287 28.171 +356 "Z12" 80.867 145.82 55.209 14.429 27.348 6.4901 +357 "2A12" 88.726 84.091 155.13 13.822 12.446 29.936 +358 "2B12" 201.37 208.14 195.53 68.261 74.431 52.067 +359 "2C12" 32.004 31.705 30.813 2.4685 2.5621 2.0287 +360 "2D12" 135.53 145.08 187.78 28.798 30.974 45.549 +361 "A13" 86.415 69.301 138.07 14.129 10.884 26.286 +362 "B13" 104.58 136.42 46.559 21.280 29.662 4.6515 +363 "C13" 147.82 79.114 100.32 32.064 17.966 13.604 +364 "D13" 75.334 85.157 157.26 9.9611 10.733 32.277 +365 "E13" 178.81 179.96 148.24 51.845 54.927 28.181 +366 "F13" 55.482 72.327 100.16 6.3441 8.5421 15.068 +367 "G13" 200.09 199.75 184.43 68.699 71.452 46.387 +368 "H13" 76.688 84.710 151.41 10.374 10.902 29.169 +369 "I13" 129.73 107.35 52.022 26.203 23.997 4.3858 +370 "J13" 119.03 160.66 198.42 25.753 36.554 54.373 +371 "K13" 56.473 50.032 106.16 5.9068 4.9157 15.287 +372 "L13" 153.18 106.56 46.936 35.348 27.270 4.1933 +373 "M13" 32.264 31.978 31.289 2.6154 2.7053 2.1626 +374 "N13" 66.470 66.520 66.246 9.3637 9.6843 7.8391 +375 "O13" 105.28 105.86 104.76 19.359 20.106 16.147 +376 "P13" 153.75 154.63 154.12 36.624 37.957 30.671 +377 "Q13" 192.03 192.25 191.27 59.859 61.861 49.702 +378 "R13" 221.68 221.89 221.96 89.957 93.025 75.604 +379 "S13" 104.20 75.856 145.33 17.613 12.665 26.369 +380 "T13" 121.87 124.18 72.370 22.969 25.114 7.7873 +381 "U13" 91.392 55.886 72.021 13.623 8.3610 7.6135 +382 "V13" 193.01 176.53 161.70 59.661 54.433 33.140 +383 "W13" 97.047 61.496 44.638 15.045 10.609 3.4373 +384 "X13" 124.18 171.27 172.48 26.676 39.190 37.659 +385 "Y13" 100.95 103.55 45.932 16.770 18.831 3.7976 +386 "Z13" 98.719 76.722 108.03 16.243 13.004 15.620 +387 "2A13" 193.99 204.68 205.71 62.079 69.145 59.254 +388 "2B13" 77.619 94.368 167.50 9.8300 11.508 34.315 +389 "2C13" 91.512 53.191 50.701 13.378 8.4024 4.1065 +390 "2D13" 76.609 104.98 135.45 11.706 16.228 24.708 +391 "A14" 129.84 79.131 147.61 27.260 17.709 28.446 +392 "B14" 74.731 86.884 158.53 10.007 11.116 33.309 +393 "C14" 178.45 194.65 198.02 55.170 63.826 56.969 +394 "D14" 122.80 65.789 71.805 22.474 12.791 7.8220 +395 "E14" 99.529 101.15 66.691 17.833 19.340 7.6068 +396 "F14" 133.73 68.160 43.803 25.508 15.387 3.5019 +397 "G14" 130.31 174.28 137.87 28.674 42.244 25.294 +398 "H14" 110.49 77.413 145.63 20.013 14.167 27.201 +399 "I14" 30.999 29.764 29.587 2.4079 2.4331 1.9867 +400 "J14" 120.14 114.13 178.99 23.527 21.066 41.374 +401 "K14" 128.29 64.544 74.117 23.203 12.509 8.0121 +402 "L14" 176.70 157.34 183.40 48.486 42.511 43.112 +403 "M14" 59.777 105.00 45.141 8.6031 15.926 4.6200 +404 "N14" 182.00 181.11 190.30 53.107 53.884 48.977 +405 "O14" 42.651 40.749 62.042 3.9836 3.7404 6.5852 +406 "P14" 151.32 150.31 182.91 35.517 35.068 43.001 +407 "Q14" 162.51 94.932 125.82 37.782 22.314 19.042 +408 "R14" 99.745 94.301 93.467 17.467 17.105 13.104 +409 "S14" 107.25 159.78 58.090 22.370 35.508 5.9931 +410 "T14" 128.01 72.369 117.84 23.886 13.985 16.868 +411 "U14" 107.76 101.18 90.766 19.591 19.252 12.172 +412 "V14" 204.14 190.16 48.644 63.345 63.812 5.6645 +413 "W14" 82.597 65.626 44.970 12.028 10.481 3.3856 +414 "X14" 166.39 166.20 175.82 42.635 43.420 39.912 +415 "Y14" 100.69 152.17 51.384 19.856 32.192 5.1431 +416 "Z14" 91.650 100.20 90.746 15.570 17.641 12.711 +417 "2A14" 143.62 91.243 162.04 29.733 19.495 31.105 +418 "2B14" 214.71 215.34 214.31 81.209 84.285 67.959 +419 "2C14" 101.32 87.875 161.74 16.972 13.897 32.504 +420 "2D14" 105.18 138.75 68.497 20.262 27.906 7.7177 +421 "A15" 124.84 68.758 114.78 24.922 14.319 17.652 +422 "B15" 99.929 150.22 167.53 20.394 32.266 39.177 +423 "C15" 121.25 165.78 57.133 28.847 42.042 6.3345 +424 "D15" 129.49 121.04 130.58 27.579 26.553 23.681 +425 "E15" 161.27 95.254 123.97 38.874 23.290 19.357 +426 "F15" 148.20 174.03 142.22 36.703 46.352 27.027 +427 "G15" 150.41 98.923 167.42 34.061 22.803 34.531 +428 "H15" 75.180 91.615 158.04 10.113 11.921 31.879 +429 "I15" 196.22 179.25 172.32 64.423 58.008 39.281 +430 "J15" 66.558 62.105 60.696 9.4542 9.1717 6.7120 +431 "K15" 174.25 177.65 112.40 48.073 52.062 16.154 +432 "L15" 116.33 112.29 162.02 22.225 20.657 33.169 +433 "M15" 133.68 171.46 73.038 32.410 43.840 8.6168 +434 "N15" 102.47 146.49 198.15 19.932 29.141 53.896 +435 "O15" 64.715 46.574 43.032 8.2354 6.1612 3.2448 +436 "P15" 105.91 159.08 164.78 21.186 33.689 34.860 +437 "Q15" 34.379 33.754 36.003 2.8839 2.9372 2.7235 +438 "R15" 102.62 61.271 119.89 16.647 10.677 18.389 +439 "S15" 159.62 86.224 48.021 35.874 22.454 3.7685 +440 "T15" 95.611 158.57 127.45 18.024 31.495 21.231 +441 "U15" 133.03 87.140 157.87 26.027 17.635 30.172 +442 "V15" 48.894 77.368 43.484 5.7623 9.6302 3.8733 +443 "W15" 182.54 191.20 178.40 53.522 58.991 41.376 +444 "X15" 126.00 95.308 166.74 23.991 17.693 34.060 +445 "Y15" 38.376 39.986 33.590 3.5595 3.8688 2.3978 +446 "Z15" 148.30 148.94 147.37 34.055 35.265 28.241 +447 "2A15" 146.55 75.055 68.429 29.379 16.826 7.3609 +448 "2B15" 71.706 70.645 144.63 9.2107 8.5579 25.691 +449 "2C15" 133.02 80.816 44.452 25.707 18.129 3.6532 +450 "2D15" 82.777 113.54 117.52 13.875 19.568 19.948 +451 "A16" 147.43 75.104 45.417 32.441 19.582 3.7464 +452 "B16" 162.22 145.05 108.87 43.738 40.362 16.554 +453 "C16" 43.273 69.681 61.261 4.9159 8.3065 7.2559 +454 "D16" 154.15 106.72 65.606 37.197 27.832 7.4910 +455 "E16" 149.19 148.83 193.98 36.691 35.876 51.695 +456 "F16" 157.80 111.38 47.573 38.836 30.036 4.3338 +457 "G16" 100.61 79.449 149.13 17.555 13.363 28.888 +458 "H16" 206.92 207.61 211.44 75.466 77.836 67.216 +459 "I16" 97.895 82.272 66.348 16.954 15.112 7.2992 +460 "J16" 172.80 178.46 82.595 47.072 52.200 10.669 +461 "K16" 183.90 191.17 190.75 55.962 60.759 50.287 +462 "L16" 75.048 76.021 151.02 10.165 9.7715 28.705 +463 "M16" 159.42 88.282 47.938 36.859 23.500 3.8297 +464 "N16" 133.24 176.09 150.50 29.735 43.076 29.229 +465 "O16" 59.749 48.251 40.198 7.3545 6.2503 2.9745 +466 "P16" 171.06 168.69 161.58 46.114 46.965 33.568 +467 "Q16" 53.260 54.841 37.700 6.2218 6.8107 2.7776 +468 "R16" 147.03 76.735 66.424 29.663 17.214 6.8286 +469 "S16" 63.206 78.809 107.93 8.0381 10.138 16.410 +470 "T16" 150.22 77.352 47.226 31.088 18.734 3.6263 +471 "U16" 97.824 159.49 134.64 18.911 32.215 23.899 +472 "V16" 133.39 81.567 151.23 26.145 16.883 27.363 +473 "W16" 155.32 82.024 48.477 33.705 20.761 3.7986 +474 "X16" 81.301 147.86 56.013 14.361 27.487 7.1744 +475 "Y16" 141.53 112.75 178.08 29.882 22.982 39.138 +476 "Z16" 31.556 30.196 30.075 2.4233 2.4412 1.9648 +477 "2A16" 166.04 149.78 129.15 42.519 39.188 21.270 +478 "2B16" 53.939 48.402 100.70 5.2349 4.4461 13.823 +479 "2C16" 152.96 83.435 68.500 32.492 19.465 7.0806 +480 "2D16" 141.97 181.00 131.63 33.454 46.863 22.481 +481 "A17" 93.002 152.57 112.99 18.355 31.722 19.048 +482 "B17" 48.562 44.595 81.595 4.8626 4.2833 10.526 +483 "C17" 155.24 137.12 108.13 39.631 36.092 16.781 +484 "D17" 37.723 54.820 48.270 3.8471 5.8319 4.8962 +485 "E17" 163.04 158.68 133.73 43.491 44.349 22.904 +486 "F17" 155.10 81.151 47.477 35.028 21.444 3.8305 +487 "G17" 119.76 108.26 175.73 23.826 20.302 40.464 +488 "H17" 155.83 188.69 108.40 44.211 56.679 16.435 +489 "I17" 54.125 49.417 43.252 6.5115 6.2807 3.6004 +490 "J17" 146.89 182.65 155.76 35.464 48.530 31.500 +491 "K17" 148.71 77.345 50.119 31.217 18.833 4.2081 +492 "L17" 53.925 41.854 39.291 6.1796 5.0138 3.0160 +493 "M17" 105.46 156.83 167.45 21.355 33.511 36.981 +494 "N17" 149.16 79.222 103.08 31.382 17.339 13.539 +495 "O17" 109.98 107.89 138.78 20.515 20.076 24.934 +496 "P17" 151.99 78.765 47.620 32.143 19.447 3.7592 +497 "Q17" 195.13 169.06 200.08 60.501 50.532 52.708 +498 "R17" 73.599 136.55 49.271 12.657 24.420 5.6873 +499 "S17" 37.757 33.718 34.938 3.4355 3.1639 2.5372 +500 "T17" 132.61 142.77 197.68 28.192 29.771 51.322 +501 "U17" 181.82 145.93 103.48 52.660 42.651 15.019 +502 "V17" 204.10 203.91 210.35 69.823 71.393 63.731 +503 "W17" 175.82 179.36 52.229 44.995 50.413 5.2421 +504 "X17" 155.69 156.50 143.88 37.401 38.967 26.702 +505 "Y17" 65.731 44.495 80.654 8.0339 5.5483 9.9052 +506 "Z17" 67.930 138.21 88.916 10.382 21.829 11.599 +507 "2A17" 156.40 87.866 68.881 34.325 21.131 7.2263 +508 "2B17" 68.870 68.990 41.254 9.1863 9.9839 3.1512 +509 "2C17" 209.60 202.66 207.60 75.534 73.388 61.922 +510 "2D17" 108.97 87.062 152.98 19.258 14.916 29.290 +511 "A18" 200.70 204.40 197.90 74.089 78.770 59.424 +512 "B18" 164.93 117.44 177.68 42.903 30.204 40.715 +513 "C18" 61.227 72.827 56.013 8.7363 10.837 6.0872 +514 "D18" 204.51 199.19 195.95 75.509 74.636 56.066 +515 "E18" 73.692 73.322 148.06 10.413 9.8011 28.727 +516 "F18" 68.313 128.24 45.392 11.836 22.861 5.4226 +517 "G18" 131.14 85.288 152.52 26.954 18.177 29.358 +518 "H18" 89.609 153.68 93.128 16.220 29.699 13.154 +519 "I18" 30.179 29.676 28.922 2.3647 2.3980 1.9090 +520 "J18" 208.65 210.69 209.48 77.786 81.283 65.463 +521 "K18" 88.863 70.346 63.498 14.363 11.898 6.7644 +522 "L18" 197.92 177.16 54.602 60.378 57.128 5.2726 +523 "M18" 143.55 91.470 162.00 30.554 20.123 31.743 +524 "N18" 121.99 131.52 122.44 24.748 27.645 20.451 +525 "O18" 172.04 115.00 91.328 44.929 31.003 12.389 +526 "P18" 81.187 74.923 148.64 11.881 10.425 27.990 +527 "Q18" 117.91 169.48 101.12 25.737 39.690 14.823 +528 "R18" 183.93 145.62 52.297 52.300 42.856 4.6545 +529 "S18" 55.452 105.38 65.438 7.2126 14.429 7.1944 +530 "T18" 211.11 208.92 210.90 77.679 78.425 65.193 +531 "U18" 177.41 124.39 134.00 47.084 32.209 22.319 +532 "V18" 53.506 90.891 78.889 6.6683 11.848 10.189 +533 "W18" 197.65 205.13 206.81 65.207 70.970 60.729 +534 "X18" 51.396 86.860 43.674 6.2806 11.330 4.1095 +535 "Y18" 193.58 175.18 113.92 60.571 56.044 16.070 +536 "Z18" 96.313 103.94 178.60 15.673 16.045 40.153 +537 "2A18" 168.53 106.08 128.73 41.178 25.901 19.845 +538 "2B18" 85.496 104.15 136.89 13.693 16.674 24.407 +539 "2C18" 208.09 210.26 179.31 74.223 78.952 41.733 +540 "2D18" 161.94 92.492 50.116 38.135 24.817 4.1395 +541 "A19" 156.71 112.54 101.12 39.239 29.094 15.479 +542 "B19" 42.513 58.501 40.536 4.7416 7.0454 3.4644 +543 "C19" 172.17 152.13 143.40 49.395 43.657 28.522 +544 "D19" 159.73 183.13 54.703 42.332 52.372 5.7052 +545 "E19" 119.21 105.48 95.518 24.242 22.424 14.026 +546 "F19" 30.235 29.764 29.269 2.4551 2.5226 2.0256 +547 "G19" 88.689 134.99 136.69 16.677 25.667 25.825 +548 "H19" 86.392 53.901 45.566 13.124 8.8453 3.5763 +549 "I19" 126.88 158.15 160.78 28.527 37.076 34.358 +550 "J19" 120.42 79.125 64.241 22.891 16.490 6.9749 +551 "K19" 108.34 160.80 164.56 22.666 35.279 35.631 +552 "L19" 49.327 39.952 38.592 5.4212 4.5484 2.9627 +553 "M19" 67.917 128.27 44.976 11.199 21.925 5.4425 +554 "N19" 127.84 62.080 45.945 22.708 12.897 3.6335 +555 "O19" 74.380 138.45 130.11 12.507 23.738 22.498 +556 "P19" 30.060 29.337 28.817 2.3442 2.3896 1.9267 +557 "Q19" 147.97 73.539 46.480 30.303 17.749 3.5777 +558 "R19" 75.153 76.608 151.15 10.104 9.7374 28.448 +559 "S19" 78.339 144.41 52.936 13.901 26.685 6.3873 +560 "T19" 31.312 30.556 30.767 2.4391 2.4780 2.0610 +561 "U19" 169.32 177.98 203.35 45.972 49.473 57.247 +562 "V19" 44.471 72.376 45.634 4.8275 8.3485 3.9886 +563 "W19" 199.02 205.39 55.979 63.154 70.855 7.5811 +564 "X19" 90.125 81.954 73.039 14.863 14.166 8.5770 +565 "Y19" 207.33 211.44 212.22 74.340 78.986 66.286 +566 "Z19" 182.95 126.85 175.69 49.996 33.344 36.894 +567 "2A19" 77.857 90.598 163.13 10.165 11.287 33.081 +568 "2B19" 202.16 204.23 49.052 62.642 69.515 6.2139 +569 "2C19" 162.94 96.440 68.740 38.429 24.741 7.3479 +570 "2D19" 83.952 84.116 160.97 12.944 12.283 32.608 +END_DATA diff --git a/scanin/ColorCheckerSG.ti2 b/scanin/ColorCheckerSG.ti2 new file mode 100644 index 0000000..7459061 --- /dev/null +++ b/scanin/ColorCheckerSG.ti2 @@ -0,0 +1,284 @@ +CTI3 + +DESCRIPTOR "Argyll Calibration Target chart information 3" +ORIGINATOR "Argyll target" +CREATED "Thu Feb 04 12:14:29 2010" +KEYWORD "DEVICE_CLASS" +DEVICE_CLASS "INPUT" +KEYWORD "COLOR_REP" +COLOR_REP "XYZ_RGB" + +KEYWORD "STDEV_R" +KEYWORD "STDEV_G" +NUMBER_OF_FIELDS 10 +BEGIN_DATA_FORMAT +SAMPLE_ID XYZ_X XYZ_Y XYZ_Z RGB_R RGB_G RGB_B STDEV_R STDEV_G STDEV_B +END_DATA_FORMAT + +NUMBER_OF_SETS 264 +BEGIN_DATA +A01 3.8500 3.2200 1.9000 3.0870 1.9150 1.9568 0.18288 0.33530 0.13814 +A02 4.8900 3.2700 1.6000 4.3780 1.1194 1.5620 0.18986 0.21677 0.15053 +A03 5.8700 3.3100 1.3300 7.0969 0.79829 1.4596 0.19608 0.13702 0.21648 +A04 6.3000 3.3800 1.1900 9.3444 0.79154 1.6415 0.24898 0.11159 0.21239 +A05 13.010 11.440 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60.774 0.60050 0.54935 0.80146 +J13 13.820 21.690 35.980 6.4384 27.059 47.284 0.27804 0.44682 0.53798 +J14 28.870 16.330 25.080 33.360 1.4880 26.700 0.54686 0.35986 0.50147 +J15 56.040 52.290 4.9700 79.215 55.635 5.6027 0.36036 0.67586 0.40739 +J16 2.4600 2.6300 2.2900 2.0271 1.9425 2.1126 0.22979 0.25009 0.22276 +J17 24.040 14.750 3.1500 32.513 3.3788 3.9462 0.38941 0.25099 0.22979 +J18 8.1200 14.490 4.5500 6.8312 20.787 5.0280 0.26878 0.48921 0.37476 +J19 5.9800 4.7900 17.760 1.9349 1.4360 18.258 0.25534 0.19476 0.43841 +J20 8.2600 5.3700 1.0400 9.0085 1.2119 1.6117 0.45009 0.24630 0.21888 +J21 11.520 7.8100 1.6200 15.322 3.1307 1.6660 0.28794 0.15307 0.22993 +J22 14.670 10.720 2.6000 19.118 4.7445 3.3211 0.27061 0.23207 0.23572 +K01 5.6300 4.7000 4.8600 3.1669 2.3147 4.3372 0.16578 0.17296 0.16002 +K02 6.7400 4.5800 7.2300 4.7712 1.7242 5.8628 0.19822 0.36800 0.19901 +K03 8.0400 4.4800 9.7300 7.0830 0.83482 8.6422 0.34393 0.17784 0.40049 +K04 9.3900 4.7600 11.790 9.3140 0.83699 11.430 0.19932 0.17903 0.39652 +K05 16.660 15.390 14.440 15.838 10.461 17.251 0.32001 0.40528 0.46694 +K06 18.720 15.180 18.230 18.124 6.6879 21.403 0.40410 0.17228 0.49710 +K07 21.560 15.500 22.970 21.965 5.3109 25.015 0.24740 0.23832 0.38336 +K08 23.000 15.020 25.370 24.105 3.1608 26.801 0.32492 0.16608 0.48978 +K09 42.500 42.020 36.050 47.117 40.740 49.022 0.53629 0.37845 0.70340 +K10 44.550 41.630 39.710 49.817 36.865 51.366 0.65172 0.52763 0.69630 +K11 47.190 41.960 44.030 49.582 31.706 51.769 0.59677 0.49442 0.61865 +K12 49.900 43.140 47.210 49.812 27.011 52.296 0.66045 0.55640 0.61863 +K13 10.610 17.440 31.240 4.4300 21.053 41.922 0.22576 0.30726 0.65920 +K14 24.840 13.190 21.000 29.807 0.40689 21.925 0.51521 0.12873 0.23282 +K15 53.120 48.050 3.1900 76.497 50.546 1.9742 0.42392 0.89083 0.22911 +K16 1.0500 1.1400 1.1300 0.37611 0.38958 0.78350 0.16012 0.11365 0.056938 +K17 19.930 11.340 1.6700 28.212 1.8825 1.9270 0.20132 0.19250 0.18652 +K18 5.3000 10.470 2.7300 4.6984 16.487 2.7171 0.27557 0.20947 0.35113 +K19 3.9500 2.7600 13.940 1.1640 0.78992 13.028 0.14201 0.087689 0.38375 +K20 30.610 26.430 11.040 37.280 17.799 14.056 0.42873 0.33930 0.49948 +K21 34.910 29.600 11.780 46.591 23.876 16.346 0.59613 0.61207 0.58881 +K22 38.950 34.570 18.400 50.441 29.451 25.122 0.41109 0.46425 0.53273 +L01 3.8800 3.1200 2.3200 2.3754 1.1903 2.4650 0.23374 0.24751 0.21411 +L02 4.9300 3.2000 2.6900 3.5670 0.87669 2.4249 0.19064 0.19083 0.21057 +L03 5.7500 3.1400 3.0200 6.2627 0.88805 2.7596 0.15419 0.19237 0.13238 +L04 7.3100 3.7900 3.4000 12.143 0.79340 5.0822 0.36514 0.10735 0.18096 +L05 13.290 11.540 9.3900 13.257 6.7371 11.007 0.53413 0.39748 0.52457 +L06 16.220 11.730 10.320 17.565 4.3606 11.749 0.41329 0.23326 0.22842 +L07 19.950 12.080 12.060 23.621 1.9646 12.957 0.36857 0.073970 0.44540 +L08 20.790 11.310 12.010 27.319 1.1467 14.145 0.39539 0.24605 0.48567 +L09 43.220 42.090 33.780 49.604 40.742 46.106 0.73537 0.46689 0.65281 +L10 45.520 41.880 34.650 52.432 36.546 46.285 0.70127 0.47543 0.81335 +L11 49.040 42.870 35.980 52.918 31.732 45.276 0.56655 0.49649 0.63589 +L12 51.030 43.830 37.780 56.056 30.451 46.847 0.71159 0.54349 0.47579 +L13 7.4500 12.770 25.590 3.1210 15.741 36.868 0.16774 0.41923 0.54315 +L14 21.260 10.760 17.730 25.639 0.67463 17.297 0.33435 0.23099 0.28299 +L15 49.450 43.120 2.1400 71.709 42.401 0.77056 0.63981 0.77745 0.15935 +L16 0.47000 0.49000 0.50000 0.39216 0.39242 0.44227 8.7191e-017 0.020117 0.17760 +L17 16.040 8.4900 0.78000 22.615 0.77695 0.80931 0.41597 0.098510 0.17603 +L18 2.9100 6.5000 1.3900 2.3795 10.578 0.82736 0.41720 0.36726 0.25065 +L19 2.5000 1.4500 10.280 0.87774 0.87456 9.0192 0.19100 0.19050 0.23749 +L20 38.700 33.980 20.860 46.392 26.795 27.748 0.70761 0.62342 0.62702 +L21 39.360 35.230 21.230 49.082 30.312 29.444 0.78808 0.53733 0.63082 +L22 41.360 38.770 23.510 49.490 34.663 31.428 0.65330 0.41753 0.60905 +GS00 79.470 82.510 69.040 94.066 92.950 89.438 0.92099 0.93414 1.0465 +GS01 72.620 74.940 59.170 83.147 81.219 77.715 0.78271 0.68705 0.94766 +GS02 63.150 65.110 51.570 72.917 70.218 68.669 1.6258 1.2707 1.2120 +GS03 54.720 56.510 45.030 62.183 59.826 59.273 1.1706 0.93329 0.94511 +GS04 48.100 49.810 39.240 54.449 52.983 53.093 0.94040 0.74898 0.81106 +GS05 42.220 43.640 34.450 46.328 44.248 45.944 0.67400 0.50032 0.83337 +GS06 37.330 38.700 30.500 38.317 37.642 39.414 0.73797 0.55911 0.80063 +GS07 32.380 33.610 26.110 33.430 32.555 34.311 0.65078 0.68590 0.53545 +GS08 27.560 28.700 22.110 28.329 27.391 29.319 0.58496 0.47730 0.62283 +GS09 22.500 23.400 17.990 24.816 23.504 25.107 0.34653 0.55560 0.46821 +GS10 18.770 19.550 14.830 19.965 19.162 21.933 0.53943 0.57276 0.50639 +GS11 15.480 16.080 12.040 16.404 15.001 17.243 0.45210 0.41568 0.49656 +GS12 12.690 13.290 9.9800 12.196 12.177 13.695 0.44316 0.26670 0.48288 +GS13 10.350 10.810 7.9700 9.2053 9.3069 10.577 0.20471 0.20663 0.38564 +GS14 8.3900 8.7700 6.3700 6.8434 6.6000 6.6948 0.44020 0.30795 0.33660 +GS15 6.4500 6.7900 4.9700 5.0530 5.1099 5.4164 0.19533 0.41922 0.22533 +GS16 4.9500 5.1800 3.7000 3.5418 3.5969 4.0009 0.21349 0.20376 0.24671 +GS17 3.5800 3.8200 2.7600 2.2466 2.3553 2.3640 0.20655 0.13937 0.14287 +GS18 2.7600 2.8900 2.0600 1.1077 1.1790 1.5754 0.28160 0.25904 0.24353 +GS19 1.9700 2.0800 1.4500 0.35943 0.40395 0.79579 0.18424 0.11867 0.11747 +GS20 1.2200 1.3100 0.98000 0.23507 0.31297 0.70239 0.19729 0.21133 0.18880 +GS21 1.0000 1.0500 0.74000 0.38400 0.38523 0.77548 0.10266 0.10537 0.10605 +GS22 0.87000 0.89000 0.65000 0.39216 0.39216 0.74886 8.7126e-017 8.7126e-017 0.16598 +GS23 0.34000 0.32000 0.32000 0.39226 0.39237 0.43006 0.012929 0.018274 0.16840 +END_DATA diff --git a/scanin/Jamfile b/scanin/Jamfile index 57d90d2..7a1ab7a 100644 --- a/scanin/Jamfile +++ b/scanin/Jamfile @@ -9,10 +9,10 @@ Libraries = libscanrd ; Executables = scanin ; Headers = scanrd.h ; Samples = it8.cht ColorChecker.cht ColorChecker.cie ColorCheckerDC.cht ColorCheckerDC.ti2 - ColorCheckerSG.cht Hutchcolor.cht i1_RGB_Scan_1.4.cht + ColorCheckerSG.cht ColorCheckerSG.ti2 Hutchcolor.cht i1_RGB_Scan_1.4.cht ColorCheckerPassport.cht ColorCheckerPassport.cie QPcard_201.cht QPcard_201.cie QPcard_202.cht QPcard_202.cie CMP_DT_003.cht - CMP_Digital_Target-3.cht CMP_Digital_Target-3.ti2 CMP_Digital_Target-3.cie + CMP_Digital_Target-4.cht CMP_Digital_Target-4.ti2 CMP_Digital_Target-4.cie LaserSoftDCPro.cht SpyderChecker.cht SpyderChecker.cie ; #Install @@ -30,4 +30,9 @@ Main scanin : scanin.c ; ObjectHdrs scanin : ../h ../numlib ../icc ../cgats ../rspl ../xicc ../gamut ../spectro $(TIFFINC) ; LinkLibraries scanin : libscanrd ../xicc/libxicc ../spectro/libinsttypes ../gamut/libgamut ../rspl/librspl ../cgats/libcgats - ../icc/libicc ../numlib/libnum ../plot/libplot ../plot/libvrml $(TIFFLIB) $(JPEGLIB) ; + ../icc/libicc ../plot/libplot ../plot/libvrml + ../numlib/libnum ../numlib/libui + $(TIFFLIB) $(JPEGLIB) ; + + + diff --git a/scanin/afiles b/scanin/afiles index d644c32..399961c 100644 --- a/scanin/afiles +++ b/scanin/afiles @@ -12,6 +12,7 @@ ColorChecker.cie ColorCheckerDC.cht ColorCheckerDC.ti2 ColorCheckerSG.cht +ColorCheckerSG.ti2 Hutchcolor.cht i1_RGB_Scan_1.4.cht ColorCheckerPassport.cht @@ -21,9 +22,9 @@ QPcard_201.cie QPcard_202.cht QPcard_202.cie CMP_DT_003.cht -CMP_Digital_Target-3.cht -CMP_Digital_Target-3.ti2 -CMP_Digital_Target-3.cie +CMP_Digital_Target-4.cht +CMP_Digital_Target-4.ti2 +CMP_Digital_Target-4.cie LaserSoftDCPro.cht SpyderChecker.cht SpyderChecker.cie diff --git a/scanin/scanin.c b/scanin/scanin.c index cacbd7d..860d831 100644 --- a/scanin/scanin.c +++ b/scanin/scanin.c @@ -42,6 +42,7 @@ #include "xicc.h" #include "scanrd.h" #include "tiffio.h" +#include "ui.h" /* Utilities */ diff --git a/spectro/Jamfile b/spectro/Jamfile index b5ad548..3aedce6 100644 --- a/spectro/Jamfile +++ b/spectro/Jamfile @@ -10,13 +10,15 @@ if $(OS) = MACOSX { ObjectCcFlags dispwin_dispwin : -ObjC ; } +DEFINES += ENABLE_FTDI ; + MADVRSOURCE = ; # Setup the right hardware access libraries if $(NT) { MADVRSOURCE = madvrwin.c ; - if $(USE_LIBUSB) = true { + if $(USE_LIBUSB) = true { DEFINES += USE_LIBUSB ; if $(USE_LIBUSB1) = true { DEFINES += USE_LIBUSB1 ; @@ -64,7 +66,7 @@ if $(UNIX) { } #Products -Libraries = libinsttypes libinst libdisp libconv libinstapp ; +Libraries = libinsttypes libdisptechs libinst libdisp libconv libinstapp ; Executables = dispwin synthcal dispread dispcal fakeread synthread chartread spotread illumread ccxxmake spec2cie average oeminst ; Headers = inst.h ; @@ -79,20 +81,20 @@ InstallFile $(DESTDIR)$(PREFIX)/$(REFSUBDIR) : $(Samples) ; if $(UNIX) && $(OS) != MACOSX { # Micro Unix CMM for handling monitor profile association CMMHDRS = ../ucmm ; - CMMLIBS = ../ucmm/libucmm ../jcnf/libjcnf ../jcnf/yajl/libyajl ; + CMMLIBS = ../ucmm/libucmm ../jcnf/libjcnf ../yajl/libyajl ; } HDRS = ../h ../numlib ../icc ../cgats ../rspl ../xicc ../gamut ../spectro - ../plot $(LIBUSBHDRS) $(CMMHDRS) ; + ../plot ../render ../ccast $(LIBUSBHDRS) $(CMMHDRS) ; # Instrument access library library SER_INSTS = dtp22.c dtp41.c dtp51.c ss.c ss_imp.c ; USB_INSTS = dtp20.c i1disp.c i1d3.c i1pro.c i1pro_imp.c munki.c munki_imp.c hcfr.c spyd2.c huey.c - colorhug.c usbio.c hidio.c ; + colorhug.c ex1.c usbio.c hidio.c ; -FAST_SER_INSTS = specbos.c ; +FAST_SER_INSTS = specbos.c kleink10.c ; SER_USB_INSTS = dtp92.c ; @@ -115,26 +117,30 @@ if $(USE_SERIAL) = true || $(USE_USB) = true { INST_SRCS += $(SER_USB_INSTS) ; } -if $(USE_DEMOINST) = true && [ GLOB . : demoinst.c ] { +if $(USE_DEMOINST) = true && [ GLOB [ NormPaths . ] : demoinst.c ] { echo "Compiling demo instrument support" ; DEFINES += ENABLE_DEMOINST ; INST_SRCS += demoinst.c ; } -Library libinst : inst.c insttypes.c icoms.c $(INST_SRCS) ; +Library libinst : inst.c insttypes.c icoms.c disptechs.c $(INST_SRCS) ; # Display access library ObjectKeep mongoose.c ; -Library libdisp : dispsup.c dispwin.c webwin.c $(MADVRSOURCE) : : : $(LibWinH) : mongoose ; +Library libdisp : dispsup.c dispwin.c webwin.c ccwin.c + $(MADVRSOURCE) : : : $(LibWinH) : mongoose ; -# Instrument types utility functions library. Use this instead of libinst when */ -# applications need to know about different instrument types, but not access them. */ +# Instrument and Display types utility functions library. Use these instead of libinst when */ +# applications need to know about different instrument or display types, but not access them. */ # (Note we're working around a bug in Jam caused by objects shared between libraries) Object insttypes2 : insttypes.c ; LibraryFromObjects libinsttypes : insttypes2 ; +Object disptechs2 : disptechs.c ; +LibraryFromObjects libdisptechs : disptechs2 ; + # System utility functions (keyboard, msec_*, thread) -Library libconv : xdg_bds.c aglob.c conv.c $(CONVFILE) : : : $(LibWinH) ; +Library libconv : xdg_bds.c aglob.c conv.c base64.c $(CONVFILE) : : : $(LibWinH) ; # Command line application instrument related convenience functions Library libinstapp : instappsup.c ; @@ -146,7 +152,10 @@ LINKLIBS = libinst libinstapp ../xicc/libxcolorants ../xicc/libxicc ../gamut/libgamut ../rspl/librspl ../cgats/libcgats - ../icc/libicc ../plot/libplot ../plot/libvrml ../numlib/libnum + ../icc/libicc ../plot/libplot ../plot/libvrml + ../ccast/libccast ../ccast/axTLS/libaxtls ../yajl/libyajl ../render/librender + $(TIFFLIB) $(JPEGLIB) $(PNGLIB) $(ZLIB) + ../numlib/libui ../numlib/libnum $(CMMLIBS) libconv ; if $(LIBUSB_IS_DLL) = true { @@ -169,7 +178,7 @@ Main spotread : spotread.c : : : : : ; # Test code if $(HOME) = "d:\\usr\\graeme" && $(PWD) = "/src/argyll/spectro" { - Main setoem : setoem.c : : : : : ; + Main setoem : setoem.c : : : : : ../numlib/libui ; } # CCMX and CCSStool @@ -188,12 +197,12 @@ Main dispcal : dispcal.c : : : ../target : : libdisp ; Main dispread : dispread.c : : : : : libdisp ; #display test window test/Lut loader utility -# [ Could avoid need for libisnt libusb etc. +# [ Could avoid need for libinst libusb etc. # by separating system dependent utils to a separate library .] -MainVariant dispwin : dispwin.c webwin.c $(MADVRSOURCE) : : STANDALONE_TEST : : mongoose : $(LibWin) ; +MainVariant dispwin : dispwin.c webwin.c ccwin.c $(MADVRSOURCE) : : STANDALONE_TEST : : mongoose : $(LibWin) ; -LINKLIBS = libinsttypes ../xicc/libxicc ../gamut/libgamut ../rspl/librspl - ../cgats/libcgats ../icc/libicc ../numlib/libnum ../plot/libplot +LINKLIBS = libinsttypes libdisptechs ../xicc/libxicc ../gamut/libgamut ../rspl/librspl + ../cgats/libcgats ../icc/libicc ../plot/libplot ../numlib/libnum ../numlib/libui ../plot/libvrml ; # Fake device print/read utility using ICC profile @@ -242,6 +251,9 @@ MainVariant xdg_bds : xdg_bds.c : : STANDALONE_TEST : : : libconv ; # test code #Main t : t.c ; #Main tt : tt.c ; +#Main ttt : ttt.c ; +#Main t1 : t1.c ; +#Main tt : tt.c ; #Main t8 : t8.c ; #Main t9 : t9.c ; #Main i1d3eval : i1d3eval.c ; @@ -252,8 +264,8 @@ if $(HOME) = "d:\\usr\\graeme" && $(PWD) = "/src/argyll/spectro" { # /SUBSYSTEM:WINDOWS on NT link ? # GuiBin oemdnld ; Main oemdnld : oemdnld.c : : : : oemarch vinflate inflate LzmaDec mongoose : libconv ; - Main fakeindev : fakeindev.c ; - Main cmtest : cmtest.c : : : : : libconv ; +# Main fakeindev : fakeindev.c ; +# Main cmtest : cmtest.c : : : : : libconv ; # Main webdisp : webdisp.c : : : : : libconv ; } diff --git a/spectro/Makefile.SA b/spectro/Makefile.SA index b1fe55f..2d57742 100644 --- a/spectro/Makefile.SA +++ b/spectro/Makefile.SA @@ -38,13 +38,13 @@ WIN_STDHDRS = $(INCFLAG)usb$(SLASH)driver all:: libinst$(SUFLIB) libinstappsup$(SUFLIB) spotread$(SUFEXE) oeminst$(SUFEXE) -INSTHEADERS = dtp20.h dtp22.h dtp41.h dtp51.h dtp92.h ss.h ss_imp.h i1disp.h i1d3.h i1pro.h i1pro_imp.h munki.h munki_imp.h hcfr.h huey.h colorhug.h spyd2.h spyd2setup.h spyd2PLD.h specbos.h -INSOBJS = dtp20$(SUFOBJ) dtp22$(SUFOBJ) dtp41$(SUFOBJ) dtp51$(SUFOBJ) dtp92$(SUFOBJ) ss$(SUFOBJ) ss_imp$(SUFOBJ) i1disp$(SUFOBJ) i1d3$(SUFOBJ) i1pro$(SUFOBJ) i1pro_imp$(SUFOBJ) munki$(SUFOBJ) munki_imp$(SUFOBJ) hcfr$(SUFOBJ) huey$(SUFOBJ) colorhug$(SUFOBJ) spyd2$(SUFOBJ) specbos$(SUFOBJ) +INSTHEADERS = dtp20.h dtp22.h dtp41.h dtp51.h dtp92.h ss.h ss_imp.h i1disp.h i1d3.h i1pro.h i1pro_imp.h munki.h munki_imp.h hcfr.h huey.h colorhug.h spyd2.h specbos.h kleink10.h +INSOBJS = dtp20$(SUFOBJ) dtp22$(SUFOBJ) dtp41$(SUFOBJ) dtp51$(SUFOBJ) dtp92$(SUFOBJ) ss$(SUFOBJ) ss_imp$(SUFOBJ) i1disp$(SUFOBJ) i1d3$(SUFOBJ) i1pro$(SUFOBJ) i1pro_imp$(SUFOBJ) munki$(SUFOBJ) munki_imp$(SUFOBJ) hcfr$(SUFOBJ) huey$(SUFOBJ) colorhug$(SUFOBJ) spyd2$(SUFOBJ) specbos$(SUFOBJ) kleink10$(SUFOBJ) -HEADERS = pollem.h conv.h aglob.h hidio.h icoms.h inst.c inst.h insttypeinst.h insttypes.h $(INSTHEADERS) usbio.h xspect.h rspl1.h sort.h xdg_bds.h ccss.h ccmx.h pars.h cgats.h instappsup.h usb$(SLASH)driver$(SLASH)driver_api.h +HEADERS = pollem.h conv.h aglob.h hidio.h icoms.h inst.c inst.h insttypeinst.h insttypes.h disptechs.h $(INSTHEADERS) usbio.h xspect.h rspl1.h sort.h xdg_bds.h ccss.h ccmx.h pars.h cgats.h instappsup.h usb$(SLASH)driver$(SLASH)driver_api.h # libinst objects -OBJS = conv$(SUFOBJ) aglob$(SUFOBJ) inst$(SUFOBJ) numsup$(SUFOBJ) rspl1$(SUFOBJ) icoms$(SUFOBJ) usbio$(SUFOBJ) hidio$(SUFOBJ) insttypes$(SUFOBJ) pollem$(SUFOBJ) xspect$(SUFOBJ) xdg_bds$(SUFOBJ) ccss$(SUFOBJ) ccmx$(SUFOBJ) pars$(SUFOBJ) cgats$(SUFOBJ) $(INSOBJS) +OBJS = conv$(SUFOBJ) aglob$(SUFOBJ) inst$(SUFOBJ) numsup$(SUFOBJ) rspl1$(SUFOBJ) icoms$(SUFOBJ) usbio$(SUFOBJ) hidio$(SUFOBJ) insttypes$(SUFOBJ) disptechs$(SUFOBJ) pollem$(SUFOBJ) xspect$(SUFOBJ) xdg_bds$(SUFOBJ) ccss$(SUFOBJ) ccmx$(SUFOBJ) pars$(SUFOBJ) cgats$(SUFOBJ) $(INSOBJS) # instrument library @@ -76,6 +76,9 @@ hidio$(SUFOBJ): hidio.c $(HEADERS) insttypes$(SUFOBJ): insttypes.c $(HEADERS) $(CC) insttypes.c +disptechs$(SUFOBJ): disptechs.c $(HEADERS) + $(CC) disptechs.c + pollem$(SUFOBJ): pollem.c $(HEADERS) $(CC) pollem.c @@ -142,6 +145,9 @@ spyd2$(SUFOBJ): spyd2.c $(HEADERS) specbos$(SUFOBJ): specbos.c $(HEADERS) $(CC) specbos.c +kleink10$(SUFOBJ): kleink10.c $(HEADERS) + $(CC) kleink10.c + oemarch$(SUFOBJ): oemarch.c $(HEADERS) $(CC) oemarch.c diff --git a/spectro/afiles b/spectro/afiles index e3fee3e..ecea51d 100644 --- a/spectro/afiles +++ b/spectro/afiles @@ -19,6 +19,8 @@ webwin.h webwin.c madvrwin.h madvrwin.c +ccwin.h +ccwin.c mongoose.h mongoose.c insttypes.h @@ -26,6 +28,8 @@ insttypes.c insttypeinst.h inst.c inst.h +disptechs.h +disptechs.c instappsup.c instappsup.h dtp20.c @@ -58,10 +62,10 @@ hcfr.c hcfr.h spyd2.c spyd2.h -spyd2setup.h -spyd2PLD.h specbos.c specbos.h +kleink10.c +kleink10.h oemarch.h oemarch.c oeminst.c @@ -74,6 +78,8 @@ huey.c huey.h colorhug.c colorhug.h +ex1.c +ex1.h spec2cie.c average.c conv.h @@ -103,6 +109,8 @@ synthcal.c spotread.c fakeread.c synthread.c +base64.h +base64.c linear.sp SOtele.sp linear.cal diff --git a/spectro/aglob.c b/spectro/aglob.c index 8d4c846..e700f76 100644 --- a/spectro/aglob.c +++ b/spectro/aglob.c @@ -53,6 +53,31 @@ #include "numsup.h" #include "aglob.h" +/* + For MSWin should convert spath to UTF16 and call + wide version of FindFirstFileW with "\\?\" pre-pended to + the path. Convert results back to UTF8. (No Nt2K support ?) + + Will setting codepage 65001 work OK for this ? (Aparently not). + _setmbcp(65001) + + _wfindfirst() + _wfindnext() + _wfopen() + WideCharToMultiByte + MultiByteToWideCharTo + GetShortPathNameW to convert for libraries, but not 100% reliable + + See + + + + + _setmode + _O_U8TEXT on files to output UTF8 ? + fopen(&fp, "newfile.txt", "rt+, ccs=UTF-8"); + + */ + /* Create the aglob */ /* Return nz on malloc error */ int aglob_create(aglob *g, char *spath) { diff --git a/spectro/average.c b/spectro/average.c index 5e659b8..5a8fb3f 100644 --- a/spectro/average.c +++ b/spectro/average.c @@ -1,6 +1,8 @@ /* * Argyll Color Correction System * Average one or more .ti3 (or other CGATS like) file values together. + * If just one file is supplied, all patches within it with + * the same device value are averaged together. * * Author: Graeme W. Gill * Date: 18/1/2011 @@ -85,7 +87,7 @@ int main(int argc, char *argv[]) { error_program = "average"; - if (argc <= 3) + if (argc < 2) usage("Too few arguments (%d, minimum is 2)",argc-1); /* Process the arguments */ @@ -147,7 +149,7 @@ int main(int argc, char *argv[]) { ninps--; /* Number of inputs */ - /* Open and read each input file */ + /* Open and read each input file, and create output file */ for (n = 0; n <= ninps; n++) { if ((inps[n].c = new_cgats()) == NULL) @@ -190,16 +192,18 @@ int main(int argc, char *argv[]) { ocg->add_field(ocg, n, inps[0].c->t[n].fsym[i], inps[0].c->t[n].ftype[i]); } - /* Duplicate all of the data */ - if ((setel = (cgats_set_elem *)malloc( - sizeof(cgats_set_elem) * inps[0].c->t[n].nfields)) == NULL) - error("Malloc failed!"); - - for (i = 0; i < inps[0].c->t[n].nsets; i++) { - inps[0].c->get_setarr(inps[0].c, n, i, setel); - ocg->add_setarr(ocg, n, setel); + if (ninps > 1) { + /* Duplicate all of the data */ + if ((setel = (cgats_set_elem *)malloc( + sizeof(cgats_set_elem) * inps[0].c->t[n].nfields)) == NULL) + error("Malloc failed!"); + + for (i = 0; i < inps[0].c->t[n].nsets; i++) { + inps[0].c->get_setarr(inps[0].c, n, i, setel); + ocg->add_setarr(ocg, n, setel); + } + free(setel); } - free(setel); } /* Figure out the indexes of the device channels */ @@ -295,44 +299,41 @@ int main(int argc, char *argv[]) { sizeof(cgats_set_elem) * inps[0].c->t[0].nfields)) == NULL) error("Malloc failed!"); - /* Process all the other input files */ - for (n = 1; n < ninps; n++) { + /* If averaging values within the one file */ + if (ninps == 1) { + int *valdone; + double npatches; + int k; + n = 0; /* Output set index */ - /* Check all the fields match */ - if (inps[0].c->t[0].nfields != inps[n].c->t[0].nfields) - error ("File '%s' has %d fields, file '%s has %d", - inps[n].name, inps[n].c->t[0].nfields, inps[0].name, inps[0].c->t[0].nfields); - for (j = 0; j < inps[0].c->t[0].nfields; j++) { - if (inps[0].c->t[0].ftype[j] != inps[n].c->t[0].ftype[j]) - error ("File '%s' field no. %d named '%s' doesn't match file '%s' field '%s'", - inps[n].name, j, inps[n].c->t[0].fsym[j], inps[0].name, inps[0].c->t[0].fsym[j]); - } + if ((valdone = (int *)calloc(inps[0].c->t[0].nsets, sizeof(int))) == NULL) + error("Malloc failed!"); - /* If merging, append all the values */ - if (domerge) { - for (i = 0; i < inps[n].c->t[0].nsets; i++) { - inps[n].c->get_setarr(inps[n].c, 0, i, setel); - ocg->add_setarr(ocg, 0, setel); - } + for (i = 0; i < inps[0].c->t[0].nsets; i++) { - } else { /* Averaging */ - /* Check the number of values matches */ - if (inps[0].c->t[0].nsets != inps[n].c->t[0].nsets) - error ("File '%s' has %d sets, file '%s has %d", - inps[n].name, inps[n].c->t[0].nsets, inps[0].name, inps[0].c->t[0].nsets); - - /* Add the numeric field values to corresponding output */ - for (i = 0; i < inps[n].c->t[0].nsets; i++) { + if (valdone[i]) + continue; + + inps[0].c->get_setarr(inps[0].c, 0, i, setel); + ocg->add_setarr(ocg, 0, setel); + npatches = 1.0; - /* Check that the device values match */ + /* Locate and patches with matching device values */ + for (k = i+1; k < inps[0].c->t[0].nsets; k++) { + + /* Check if the device values match */ for (j = 0; j < nchan; j++) { double diff; + diff = *((double *)inps[0].c->t[0].fdata[i][chix[j]]) - - *((double *)inps[n].c->t[0].fdata[i][chix[j]]); + - *((double *)inps[0].c->t[0].fdata[k][chix[j]]); - if (diff > 0.001) - error ("File '%s' set %d has field '%s' value that differs from '%s'", - inps[n].name, i+1, inps[n].c->t[0].fsym[j], inps[0].name); + if (fabs(diff) > 0.001) { + break; + } + } + if (j < nchan) { + continue; } /* Add all the non-device real field values */ @@ -351,18 +352,13 @@ int main(int argc, char *argv[]) { if (jj < nchan) continue; - *((double *)ocg->t[0].fdata[i][j]) - += *((double *)inps[n].c->t[0].fdata[i][j]); + *((double *)ocg->t[0].fdata[n][j]) + += *((double *)inps[0].c->t[0].fdata[k][j]); } + npatches++; + valdone[k] = 1; } - } - } - - /* If averaging, divide out the number of files */ - if (!domerge) { - - for (i = 0; i < inps[n].c->t[0].nsets; i++) { - + /* Average them out */ for (j = 0; j < inps[0].c->t[0].nfields; j++) { int jj; @@ -378,7 +374,101 @@ int main(int argc, char *argv[]) { if (jj < nchan) continue; - *((double *)ocg->t[0].fdata[i][j]) /= (double)ninps; + *((double *)ocg->t[0].fdata[n][j]) /= npatches; + } + n++; /* One more output set */ + } + + free(valdone); + + /* Averaging patches between identical files, */ + /* or concatenating (merging) several files */ + } else { + /* Process all the other input files */ + for (n = 1; n < ninps; n++) { + + /* Check all the fields match */ + if (inps[0].c->t[0].nfields != inps[n].c->t[0].nfields) + error ("File '%s' has %d fields, file '%s has %d", + inps[n].name, inps[n].c->t[0].nfields, inps[0].name, inps[0].c->t[0].nfields); + for (j = 0; j < inps[0].c->t[0].nfields; j++) { + if (inps[0].c->t[0].ftype[j] != inps[n].c->t[0].ftype[j]) + error ("File '%s' field no. %d named '%s' doesn't match file '%s' field '%s'", + inps[n].name, j, inps[n].c->t[0].fsym[j], inps[0].name, inps[0].c->t[0].fsym[j]); + } + + /* If merging, append all the values */ + if (domerge) { + for (i = 0; i < inps[n].c->t[0].nsets; i++) { + inps[n].c->get_setarr(inps[n].c, 0, i, setel); + ocg->add_setarr(ocg, 0, setel); + } + + } else { /* Averaging */ + /* Check the number of values matches */ + if (inps[0].c->t[0].nsets != inps[n].c->t[0].nsets) + error ("File '%s' has %d sets, file '%s has %d", + inps[n].name, inps[n].c->t[0].nsets, inps[0].name, inps[0].c->t[0].nsets); + + /* Add the numeric field values to corresponding output */ + for (i = 0; i < inps[n].c->t[0].nsets; i++) { + + /* Check that the device values match */ + for (j = 0; j < nchan; j++) { + double diff; + diff = *((double *)inps[0].c->t[0].fdata[i][chix[j]]) + - *((double *)inps[n].c->t[0].fdata[i][chix[j]]); + + if (fabs(diff) > 0.001) + error ("File '%s' set %d has field '%s' value that differs from '%s'", + inps[n].name, i+1, inps[n].c->t[0].fsym[j], inps[0].name); + } + + /* Add all the non-device real field values */ + for (j = 0; j < inps[0].c->t[0].nfields; j++) { + int jj; + + /* Only real types */ + if (inps[0].c->t[0].ftype[j] != r_t) + continue; + + /* Not device channels */ + for (jj = 0; jj < nchan; jj++) { + if (chix[jj] == j) + break; + } + if (jj < nchan) + continue; + + *((double *)ocg->t[0].fdata[i][j]) + += *((double *)inps[n].c->t[0].fdata[i][j]); + } + } + } + } + + /* If averaging, divide out the number of files */ + if (!domerge) { + + for (i = 0; i < inps[n].c->t[0].nsets; i++) { + + for (j = 0; j < inps[0].c->t[0].nfields; j++) { + int jj; + + /* Only real types */ + if (inps[0].c->t[0].ftype[j] != r_t) + continue; + + /* Not device channels */ + for (jj = 0; jj < nchan; jj++) { + if (chix[jj] == j) + break; + } + if (jj < nchan) + continue; + + *((double *)ocg->t[0].fdata[i][j]) /= (double)ninps; + } } } } diff --git a/spectro/base64.c b/spectro/base64.c new file mode 100644 index 0000000..388d121 --- /dev/null +++ b/spectro/base64.c @@ -0,0 +1,215 @@ + +/* + * Argyll Color Correction System + * + * Very simple & concise base64 encoder/decoder + * + * Author: Graeme W. Gill + * + * Copyright 2014, Graeme W. Gill + * All rights reserved. + * + * This material is licenced under the GNU GENERAL PUBLIC LICENSE Version 2 or later :- + * see the License2.txt file for licencing details. + */ + + +#include +# define DLL_LOCAL +#include "base64.h" + +static int enc(int val) { + val &= 0x3f; + + if (val <= 25) + return ('A' + val); + if (val <= 51) + return ('a' + val - 26); + if (val <= 61) + return ('0' + val - 52); + if (val == 62) + return '+'; + return '/'; +} + +/* Encode slen bytes into nul terminated string. */ +/* if dlen is !NULL, then set it to resulting string length excluding nul */ +/* We assume that the destination buffer is long enough at EBASE64LEN */ +void DLL_LOCAL ebase64(int *dlen, char *dst, unsigned char *src, int slen) { + unsigned char buf[3]; + int i, j; + + /* Do this 3 characters at a time */ + for (j = i = 0; i < slen; i += 3) { + int ib; + + /* Grab 3 bytes or zero pad, and count bits */ + buf[0] = src[i]; ib = 8; + buf[1] = (i+1) < slen ? (ib += 8, src[i+1]) : 0; + buf[2] = (i+2) < slen ? (ib += 8, src[i+2]) : 0; + + /* Output up to 4 encoded characters */ + dst[j] = enc(buf[0] >> 2), j++; + if (ib > 6) { + dst[j] = enc(buf[0] << 4 | buf[1] >> 4), j++; + if (ib > 12) { + dst[j] = enc(buf[1] << 2 | buf[2] >> 6), j++; + if (ib > 18) + dst[j] = enc(buf[2]), j++; + } + } + } + if (dlen != NULL) + *dlen = j; + + dst[j++] = '\000'; +} + +/* Return binary value corresponding to encoded character, */ +/* -1 for invalid character, -2 if nul terminator */ +/* (We're assuming ASCII encoding) */ +static int dec(int val) { + val &= 0xff; + + if (val == 0) + return -2; + if (val == '+') + return 62; + if (val == '/') + return 63; + if (val < '0') + return -1; + if (val <= '9') + return val - '0' + 52; + if (val < 'A') + return -1; + if (val <= 'Z') + return val - 'A'; + if (val < 'a') + return -1; + if (val <= 'z') + return val - 'a' + 26; + return -1; +} + +/* Decode nul terminated string into bytes, ignoring illegal characters. */ +/* if dlen is !NULL, then set it to resulting byte length */ +/* We assume that the destination buffer is long enough at DBASE64LEN */ +void DLL_LOCAL dbase64(int *dlen, unsigned char *dst, char *src) { + int buf[4]; + int j; + + /* Do this 4 characters at a time */ + for (j = 0;;) { + int v, ib; + + /* Grab 4 characters skipping illegals, and count bits */ + while ((buf[0] = dec(*src++)) == -1) + ; + if (buf[0] == -2) + break; + ib = 6; + while ((buf[1] = dec(*src++)) == -1) + ; + if (buf[1] != -2) { + ib += 6; + while ((buf[2] = dec(*src++)) == -1) + ; + if (buf[2] != -2) { + ib += 6; + while ((buf[3] = dec(*src++)) == -1) + ; + if (buf[3] != -2) + ib += 6; + else + buf[3] = 0; + } else + buf[2] = 0; + } else + buf[1] = 0; + + /* Output up to 3 decoded bytes */ + dst[j] = buf[0] << 2 | buf[1] >> 4, j++; + if (ib > 12) { + dst[j] = buf[1] << 4 | buf[2] >> 2, j++; + if (ib > 18) { + dst[j] = buf[2] << 6 | buf[3], j++; + continue; /* We didn't run out */ + } + } + break; /* Must be done if didn't continue */ + } + if (dlen != NULL) + *dlen = j; +} + + +#ifdef STANDALONE_TEST +/* test base64 code */ + +#include + +#define MAXLEN 30 + +int main() { + unsigned char src[MAXLEN], check[MAXLEN]; + char dst[EBASE64LEN(MAXLEN) + 1]; + int n, slen, dlen, chlen, i, j; + + printf("Testing base64 encode/decode:\n"); + + for (n = 0; n < 10000000; n++) { + + /* Create a random binary */ + slen = i_rand(0, MAXLEN); + for (i = 0; i < slen; i++) + src[i] = i_rand(0, 255); + + /* Encode it */ + ebase64(&dlen, dst, src, slen); + + if (dlen != EBASE64LEN(slen)) { + error("%d: Wrong encoded length, src %d, is %d should be %d\n",n,slen,dlen,EBASE64LEN(slen)); + } + + /* Decode it */ + dbase64(&chlen, check, dst); + + if (chlen != DBASE64LEN(dlen)) { + error("%d: Wrong decoded length, enc %d, is %d should be %d\n",n,dlen,chlen,DBASE64LEN(dlen)); + } + + /* Check characters match */ + for (i = 0; i < slen; i++) { + if (src[i] != check[i]) { + for (j = 0; j < slen; j++) { + printf("%02X ",src[j]); + if ((j % 3) == 2) + printf(" "); + } + printf("\n"); + + for (j = 0; j < dlen; j++) { + printf("%c ",dst[j]); + if ((j % 4) == 3) + printf(" "); + } + printf("\n"); + for (j = 0; j < slen; j++) { + printf("%02X ",check[j]); + if ((j % 3) == 2) + printf(" "); + } + printf("\n\n"); + printf("src len %d, dst len %d\n",slen, dlen); + error("%d: Verify error at byte %d, is 0x%x should be 0x%x\n",n,i,check[i],src[i]); + } + } + + if ((n % 10000) == 0) + printf("done %d tests\n",n); + } + printf("Testing %d conversions base64 complete\n",n); +} + +#endif /* STANDALONE_TEST */ diff --git a/spectro/base64.h b/spectro/base64.h new file mode 100644 index 0000000..726f20a --- /dev/null +++ b/spectro/base64.h @@ -0,0 +1,33 @@ + +/* + * Argyll Color Correction System + * + * Very simple & concise base64 encoder/decoder + * + * Author: Graeme W. Gill + * + * Copyright 2014, Graeme W. Gill + * All rights reserved. + * + * This material is licenced under the GNU GENERAL PUBLIC LICENSE Version 2 or later :- + * see the License2.txt file for licencing details. + */ + + +/* The maximum encoded length given decoded length */ +#define EBASE64LEN(len) (((len) * 4 + 2)/3) + +/* Encode slen bytes into nul terminated string. */ +/* if dlen is !NULL, then set it to resulting string length excluding nul */ +/* We assume that the destination buffer is long enough at EBASE64LEN */ +void ebase64(int *dlen, char *dst, unsigned char *src, int slen); + +/* The maximum decoded length given encoded length */ +#define DBASE64LEN(len) (((len) * 3)/4) + +/* Decode nul terminated string into bytes, ignoring illegal characters. */ +/* if dlen is !NULL, then set it to resulting byte length */ +/* We assume that the destination buffer is long enough at DBASE64LEN */ +void dbase64(int *dlen, unsigned char *dst, char *src); + + diff --git a/spectro/ccwin.c b/spectro/ccwin.c new file mode 100644 index 0000000..3c0d97f --- /dev/null +++ b/spectro/ccwin.c @@ -0,0 +1,693 @@ + +/* + * Argyll Color Correction System + * ChromeCast Display target patch window + * + * Author: Graeme W. Gill + * Date: 8/9/14 + * + * Copyright 2013, 2014 Graeme W. Gill + * All rights reserved. + * + * This material is licenced under the GNU AFFERO GENERAL PUBLIC LICENSE Version 3 :- + * see the License.txt file for licencing details. + */ + +#include +#include +#ifdef NT +# include +#endif +#ifdef UNIX +# include +# include +# include +# include +# ifdef __FreeBSD__ +# include +# endif /* __FreeBSD__ */ +#endif +#include "copyright.h" +#include "aconfig.h" +#include "icc.h" +#include "numsup.h" +#include "cgats.h" +#include "conv.h" +#include "dispwin.h" +#include "conv.h" +#include "mongoose.h" +#include "ccast.h" +#include "ccwin.h" +#include "render.h" + +#undef WRITE_PNG /* [und] Write each test patch to "ccwin.png" */ +#undef CCTEST_PATTERN /* [und] Create dev. spatial test pattern */ +#undef SEND_TEST_FILE /* [und] Send this file name to ChromeCast instead of pattern */ +#undef DO_TIMING /* [und] Print rendering timing */ +#undef DEBUG /* [und] */ + +#define DDITHER 1 /* 0 = no dither - quantize to PNG 8 bit RGB value */ + /* [def] 1 = use error diffusion dithering with ccast quant model */ + /* 2 = use crafted 4x4 dither cell */ + +#define VWIDTH 1920.0 /* Video stream and display size */ +#define VHEIGHT 1080.0 + +#define IWIDTH 1280.0 /* This is the native still image framebuffer size for ChromeCasts */ +#define IHEIGHT 720.0 + +//#define STANDALONE_TEST + +#ifdef DEBUG +#define errout stderr +# define debug(xx) fprintf(errout, xx ) +# define debug2(xx) fprintf xx +# define debugr(xx) fprintf(errout, xx ) +# define debugr2(xx) fprintf xx +# define debugrr(xx) fprintf(errout, xx ) +# define debugrr2(xx) fprintf xx +# define debugrr2l(lev, xx) fprintf xx +#else +#define errout stderr +# define debug(xx) +# define debug2(xx) +# define debugr(xx) if (p->ddebug) fprintf(errout, xx ) +# define debugr2(xx) if (p->ddebug) fprintf xx +# define debugrr(xx) if (callback_ddebug) fprintf(errout, xx ) +# define debugrr2(xx) if (callback_ddebug) fprintf xx +# define debugrr2l(lev, xx) if (callback_ddebug >= lev) fprintf xx +#endif + +/* ================================================================== */ + +/* Chromwin context and (possible) web server */ +typedef struct _chws { + int verb; + int ddebug; + + int direct; /* End PNG directly, rather than using web server */ + + struct mg_context *mg; /* Mongoose context (if needed) */ + char *ws_url; /* Web server URL for accessing server */ + +// double hoff, voff; /* Input position of test square */ + double x, y; /* position of test square in pixels */ + double w, h; /* size of test square in pixels */ + int pno; /* Index to generate a sequence of URLs */ + unsigned char *ibuf; /* Memory image of .png file */ + size_t ilen; + + ccast *cc; /* ChromeCast */ + + /* Update the png image */ + int (*update)(struct _chws *p, unsigned char *ibuf, size_t ilen, double *bg); + + /* Destroy ourselves */ + void (*del)(struct _chws *p); + +} chws; + +static void chws_del(chws *p) { + + if (p->mg != NULL) + mg_stop(p->mg); + + if (p->cc != NULL) + p->cc->del(p->cc); + + if (p->ibuf != NULL) + free(p->ibuf); + + if (p->ws_url != NULL) + free(p->ws_url); + + free(p); +} + +/* Change the .png being served */ +/* Return nz on error */ +static int chws_update(chws *p, unsigned char *ibuf, size_t ilen, double *bg) { + char url[200]; + + debug("\nUpdate png\n"); + + if (p->ibuf != NULL) + free(p->ibuf); + + p->ibuf = ibuf; + p->ilen = ilen; + + /* Send the PNG swatch direct */ + if (p->direct) { + double x, y, w, h; + /* Convert x,y,w,h to relative rather than pixel size */ + + debugr2((errout,"Got x %f y %f w %f h %f\n", p->x, p->y, p->w, p->h)); + + // Convert from quantized to direct loader parameters + if (p->w < IWIDTH) + x = p->x/(IWIDTH - p->w); + else + x = 0.0; + if (p->h < IHEIGHT) + y = p->y/(IHEIGHT - p->h); + else + y = 0.0; + w = p->w/(0.1 * IWIDTH); + h = p->h/(0.1 * IWIDTH); + + debugr2((errout,"Sending direct x %f y %f w %f h %f\n", x, y, w, h)); + + if (p->cc->load(p->cc, NULL, p->ibuf, p->ilen, bg, x, y, w, h)) { + debugr2((errout,"ccwin_update direct load failed\n")); + return 1; + } + + /* Using web server */ + } else { + +#ifdef SEND_TEST_FILE + sprintf(url, "%s%s",p->ws_url, SEND_TEST_FILE); +#else + sprintf(url, "%stpatch_%d.png",p->ws_url, ++p->pno); +#endif + if (p->cc->load(p->cc, url, NULL, 0, NULL, 0.0, 0.0, 0.0, 0.0)) { + debugr2((errout,"ccwin_update server load failed\n")); + return 1; + } + } + return 0; +} + +/* Web server event handler - return the current .png image */ +static void *ccwin_ehandler(enum mg_event event, + struct mg_connection *conn) { + const struct mg_request_info *request_info = mg_get_request_info(conn); + chws *p = (chws *)mg_get_user_data(conn); + char *cp; + char sbuf[200]; + + debugr2((errout,"ccwin_ehandler()\n")); + + if (event != MG_NEW_REQUEST) { + return NULL; + } + + debugr2((errout,"Event: uri = '%s'\n",request_info->uri)); + +#ifdef SEND_TEST_FILE +#pragma message("############################# ccwin.c SEND_TEST_FILE defined ! ##") + return NULL; +#endif + + if (p->ibuf != NULL && p->ilen > 0 + && (cp = strrchr(request_info->uri, '.')) != NULL + && strcmp(cp, ".png") == 0) { + + debugr2((errout,"Event: Loading %s\n",request_info->uri)); + + debugr2((errout,"Returning current png size %d bytes\n",(int)p->ilen)); + sprintf(sbuf, + "HTTP/1.1 200 OK\r\n" + "Content-Type: image/png\r\n" + "Content-Length: %d\r\n" + "\r\n" + ,(int)p->ilen); + + mg_write(conn, sbuf, strlen(sbuf)); + mg_write(conn, p->ibuf, p->ilen); + + } else { + debugr2((errout,"Bad request or png - returning 404\n")); + sprintf(sbuf, + "HTTP/1.0 404 Not Found\r\n" + "\r\n" + "

        Error 404 - Not Found

        "); + + mg_write(conn, sbuf, strlen(sbuf)); + } + + return "yes"; +} + +chws *new_chws( +ccast_id *cc_id, /* ChromeCast to open */ +double width, double height, /* Width and height as % */ +double hoff, double voff, /* Offset from center in fraction of screen, range -1.0 .. 1.0 */ +int verb, int ddebug) { + chws *p; + const char *options[3]; + char port[50]; + int portno = 0; /* Port number allocated */ + int forcedef = 0; /* Force default reciever app. */ + + if ((p = (chws *)calloc(sizeof(chws), 1)) == NULL) { + error("new_chws: calloc failed"); + return NULL; + } + + p->verb = verb; + p->ddebug = ddebug; + + p->update = chws_update; + p->del = chws_del; + + /* We make sure we round the test patch size and */ + /* location to integer resolution so that we can know */ + /* it's exact relationship to the upsampled pixel locations. */ + + /* Setup window size and position */ + /* The default size is 10% of the width */ + p->w = floor(width/100.0 * 0.1 * IWIDTH + 0.5); + if (p->w > IWIDTH) + p->w = IWIDTH; + p->h = floor(height/100.0 * 0.1 * IWIDTH + 0.5); + if (p->h > IHEIGHT) + p->h = IHEIGHT; + + // Make offset be on an even pixel boundary, so that we know + // the up-filter phase. + p->x = floor((hoff * 0.5 + 0.5) * (IWIDTH - p->w) + 0.5); + p->y = floor((voff * 0.5 + 0.5) * (IHEIGHT - p->h) + 0.5); + if (((int)p->x) & 1) + p->x++; + if (((int)p->y) & 1) + p->y++; + + if (verb) printf("Opening ChromeCast '%s'\n",cc_id->name); + +#ifdef SEND_TEST_FILE + forcedef = 1; +#endif + + /* Connect to the chrome cast */ + if ((p->cc = new_ccast(cc_id, forcedef)) == NULL) { + error("new_ccast: failed"); + chws_del(p); + return NULL; + } + + p->direct = p->cc->get_direct_send(p->cc); + + if (!p->direct) { + /* Create a web server */ + options[0] = "listening_ports"; +// sprintf(port,"%d", 0); /* Use any available */ + sprintf(port,"%d", 8081); /* Use fixed port for Linux firewall rule */ + options[1] = port; + options[2] = NULL; + + p->mg = mg_start(&ccwin_ehandler, (void *)p, options); + + if ((p->ws_url = mg_get_url(p->mg)) == NULL) { + debugr2((errout, "mg_get_url() failed\n")); + chws_del(p); + return NULL; + } + if (p->ddebug) + printf("Created .png server at '%s'\n",p->ws_url); + } + + return p; +} + + +/* ================================================================== */ + +/* Get RAMDAC values. ->del() when finished. */ +/* Return NULL if not possible */ +static ramdac *ccwin_get_ramdac(dispwin *p) { + debugr("webdisp doesn't have a RAMDAC\n"); + return NULL; +} + +/* Set the RAMDAC values. */ +/* Return nz if not possible */ +static int ccwin_set_ramdac(dispwin *p, ramdac *r, int persist) { + debugr("webdisp doesn't have a RAMDAC\n"); + return 1; +} + +/* ----------------------------------------------- */ +/* Install a display profile and make */ +/* it the default for this display. */ +/* Return nz if failed */ +int ccwin_install_profile(dispwin *p, char *fname, ramdac *r, p_scope scope) { + debugr("webdisp doesn't support installing profiles\n"); + return 1; +} + +/* Un-Install a display profile */ +/* Return nz if failed, */ +int ccwin_uninstall_profile(dispwin *p, char *fname, p_scope scope) { + debugr("webdisp doesn't support uninstalling profiles\n"); + return 1; +} + +/* Get the currently installed display profile. */ +/* Return NULL if failed. */ +icmFile *ccwin_get_profile(dispwin *p, char *name, int mxlen) { + debugr("webdisp doesn't support getting the current profile\n"); + return NULL; +} + +/* ----------------------------------------------- */ + +/* Change the window color. */ +/* Return 1 on error, 2 on window being closed */ +static int ccwin_set_color( +dispwin *p, +double r, double g, double b /* Color values 0.0 - 1.0 */ +) { + chws *ws = (chws *)p->pcntx; + int j; + double orgb[3]; /* Previous RGB value */ + double kr, kf; + int update_delay = 0; + + debugr("ccwin_set_color called\n"); + + if (p->nowin) { + debugr("ccwin_set_color: nowin - give up\n"); + return 1; + } + + orgb[0] = p->rgb[0]; p->rgb[0] = r; + orgb[1] = p->rgb[1]; p->rgb[1] = g; + orgb[2] = p->rgb[2]; p->rgb[2] = b; + + for (j = 0; j < 3; j++) { + if (p->rgb[j] < 0.0) + p->rgb[j] = 0.0; + else if (p->rgb[j] > 1.0) + p->rgb[j] = 1.0; + p->r_rgb[j] = p->s_rgb[j] = p->rgb[j]; + if (p->out_tvenc) { + p->r_rgb[j] = p->s_rgb[j] = ((235.0 - 16.0) * p->s_rgb[j] + 16.0)/255.0; + + /* For video encoding the extra bits of precision are created by bit shifting */ + /* rather than scaling, so we need to scale the fp value to account for this. */ + if (p->pdepth > 8) + p->r_rgb[j] = (p->s_rgb[j] * 255 * (1 << (p->pdepth - 8))) + /((1 << p->pdepth) - 1.0); + } + } + + /* This is probably not actually thread safe... */ + p->ncix++; + +#if DDITHER != 1 +# pragma message("############################# ccwin.c DDITHER != 1 ##") +#endif + + /* Turn the color into a png file */ + { + /* We want a raster of IWIDTH x IHEIGHT pixels for web server, */ + /* or p->w x p->h for PNG direct. */ + render2d *r; + prim2d *rct; + depth2d depth = bpc8_2d; +#if DDITHER == 1 + int dither = 0x8002; /* 0x8002 = error diffuse FG only */ +#elif DDITHER == 2 + int dither = 0x4000; /* 0x4000 = no dither but don't average pixels */ + /* so as to allow pattern to come through. */ +#else + int dither = 0; /* Don't dither in renderer */ +#endif + double hres = 1.0; /* Resoltion in pix/mm */ + double vres = 1.0; /* Resoltion in pix/mm */ + double iw, ih; /* Size of page in mm (pixels) */ + double bg[3]; /* Background color */ + color2d c; + unsigned char *ibuf; /* Memory image of .png file */ + size_t ilen; +#ifdef DO_TIMING + int stime; +#endif + + if (ws->direct) { + iw = ws->w; /* Requested size */ + ih = ws->h; + } else { + iw = IWIDTH; + ih = IHEIGHT; /* Size of page in mm */ + } + + if (p->blackbg) { + bg[0] = 0.0; + bg[1] = 0.0; + bg[2] = 0.0; + } else { + bg[0] = 0.5; + bg[1] = 0.5; + bg[2] = 0.5; + } + + debugr2((errout, "ccwin_set_color iw %f ih %f\n",iw,ih)); + + if ((r = new_render2d(iw, ih, NULL, hres, vres, rgb_2d, + 0, depth, dither, +#if DDITHER == 1 + ccastQuant, +#else + NULL, +#endif + NULL)) == NULL) { + error("ccwin: new_render2d() failed"); + } + + /* Set the background color */ + c[0] = bg[0]; + c[1] = bg[1]; + c[2] = bg[2]; + r->set_defc(r, c); + + c[0] = p->r_rgb[0]; + c[1] = p->r_rgb[1]; + c[2] = p->r_rgb[2]; + if (ws->direct) + r->add(r, rct = new_rect2d(r, 0.0, 0.0, ws->w, ws->h, c)) ; + else + r->add(r, rct = new_rect2d(r, ws->x, ws->y, ws->w, ws->h, c)) ; + +#if DDITHER == 2 /* Use dither pattern */ + { + double rgb[3]; + double dpat[CCDITHSIZE][CCDITHSIZE][3]; + double (*cpat)[MXPATSIZE][MXPATSIZE][TOTC2D]; + int i, j; + + /* Get a chrome cast dither pattern to match target color */ + for (i = 0; i < 3; i++) + rgb[i] = p->r_rgb[i] * 255.0; + get_ccast_dith(dpat, rgb); + + if ((cpat = malloc(sizeof(double) * MXPATSIZE * MXPATSIZE * TOTC2D)) == NULL) + error("ccwin: malloc of dither pattern failed"); + + for (i = 0; i < CCDITHSIZE; i++) { + for (j = 0; j < CCDITHSIZE; j++) { + int k = (((int)IHEIGHT-2) - j) % CCDITHSIZE; /* Flip to origin bot left */ + (*cpat)[i][k][0] = dpat[i][j][0]/255.0; /* (HEIGHT-2 is correct!) */ + (*cpat)[i][k][1] = dpat[i][j][1]/255.0; + (*cpat)[i][k][2] = dpat[i][j][2]/255.0; + } + } + + set_rect2d_dpat((rect2d *)rct, cpat, CCDITHSIZE, CCDITHSIZE); + } +#endif /* DDITHER == 2 */ + +#ifdef CCTEST_PATTERN +#pragma message("############################# ccwin.c TEST_PATTERN defined ! ##") + if (getenv("ARGYLL_CCAST_TEST_PATTERN") != NULL) { + verbose(0, "Writing test pattern to '%s'\n","testpattern.png"); + if (r->write(r, "testpattern.png", 1, NULL, NULL, png_file)) + error("ccwin: render->write failed"); + } +#else /* !CCTEST_PATTERN */ +# ifdef WRITE_PNG /* Write it to a file so that we can look at it */ +# pragma message("############################# spectro/ccwin.c WRITE_PNG is enabled ######") + if (r->write(r, "ccwin.png", 1, NULL, NULL, png_file)) + error("ccwin: render->write failed"); +# endif /* WRITE_PNG */ +#endif /* !CCTEST_PATTERN */ + +#ifdef DO_TIMING + stime = msec_time(); +#endif + if (r->write(r, "MemoryBuf", 1, &ibuf, &ilen, png_mem)) + error("ccwin: render->write failed"); +#ifdef DO_TIMING + stime = msec_time() - stime; + printf("render->write took %d msec\n",stime); +#endif + if (ws->update(ws, ibuf, ilen, bg)) + error("ccwin: color update failed"); + p->ccix = p->ncix; + } + + /* If update is notified asyncronously ... */ +// while(p->ncix != p->ccix) { +// msec_sleep(50); +// } +//printf("#################################################################\n"); +//printf("################# RGB update notified ################\n"); +//printf("#################################################################\n"); + + /* Allow for display update & instrument delays */ + update_delay = dispwin_compute_delay(p, orgb); + debugr2((errout, "ccwin_set_color delaying %d msec\n",update_delay)); + msec_sleep(update_delay); + + return 0; +} + +/* Set/unset the blackground color flag */ +/* Return nz on error */ +static int ccwin_set_bg(dispwin *p, int blackbg) { + p->blackbg = blackbg; + + return 0; +} + + +/* ----------------------------------------------- */ +/* Set the shell set color callout */ +void ccwin_set_callout( +dispwin *p, +char *callout +) { + debugr2((errout,"ccwin_set_callout called with '%s'\n",callout)); + + p->callout = strdup(callout); +} + +/* ----------------------------------------------- */ +/* Destroy ourselves */ +static void ccwin_del( +dispwin *p +) { + chws *ws; + + debugr("ccwin_del called\n"); + + if (p == NULL) + return; + + ws = (chws *)p->pcntx; + + if (ws != NULL) + ws->del(ws); + + if (p->name != NULL) + free(p->name); + if (p->description != NULL) + free(p->description); + if (p->callout != NULL) + free(p->callout); + + free(p); +} + +/* ----------------------------------------------- */ + +/* Create a web display test window, default grey */ +dispwin *new_ccwin( +ccast_id *cc_id, /* ChromeCast to open */ +double width, double height, /* Width and height in mm. (TV width assumed to b 1000mm) */ +double hoff, double voff, /* Offset from center in fraction of screen, range -1.0 .. 1.0 */ +int nowin, /* NZ if no window should be created - RAMDAC access only */ +int native, /* X0 = use current per channel calibration curve */ + /* X1 = set native linear output and use ramdac high precn. */ + /* 0X = use current color management cLut (MadVR) */ + /* 1X = disable color management cLUT (MadVR) */ +int *noramdac, /* Return nz if no ramdac access. native is set to X0 */ +int *nocm, /* Return nz if no CM cLUT access. native is set to 0X */ +int out_tvenc, /* 1 = use RGB Video Level encoding */ +int blackbg, /* NZ if whole screen should be filled with black */ +int verb, /* NZ for verbose prompts */ +int ddebug /* >0 to print debug statements to stderr */ +) { + dispwin *p = NULL; + char *cp; + chws *ws = NULL; + const char *options[3]; + + debug("new_ccwin called\n"); + + if ((p = (dispwin *)calloc(sizeof(dispwin), 1)) == NULL) { + if (ddebug) fprintf(stderr,"new_ccwin failed because malloc failed\n"); + return NULL; + } + + /* !!!! Make changes in dispwin.c & madvrwin.c as well !!!! */ + p->name = strdup("Web Window"); + p->width = width; + p->height = height; + p->nowin = nowin; + p->native = native; + p->out_tvenc = out_tvenc; + p->blackbg = blackbg; + p->ddebug = ddebug; + p->get_ramdac = ccwin_get_ramdac; + p->set_ramdac = ccwin_set_ramdac; + p->install_profile = ccwin_install_profile; + p->uninstall_profile = ccwin_uninstall_profile; + p->get_profile = ccwin_get_profile; + p->set_color = ccwin_set_color; + p->set_bg = ccwin_set_bg; + p->set_update_delay = dispwin_set_update_delay; + p->set_settling_delay = dispwin_set_settling_delay; + p->enable_update_delay = dispwin_enable_update_delay; + p->set_callout = ccwin_set_callout; + p->del = ccwin_del; + + if (noramdac != NULL) + *noramdac = 1; + p->native &= ~1; + + if (nocm != NULL) + *nocm = 1; + p->native &= ~2; + + p->rgb[0] = p->rgb[1] = p->rgb[2] = 0.5; /* Set Grey as the initial test color */ + + dispwin_set_default_delays(p); + + p->ncix = 1; + + p->pdepth = 8; /* Assume this by API */ + p->edepth = 8; + + /* Basic object is initialised, so create connection to ChromeCast */ + if ((ws = new_chws(cc_id, width, height, hoff, voff, verb, ddebug)) == NULL) { + if (ddebug) fprintf(stderr,"new_ccwin failed - new_chws() failed\n"); + return NULL; + } + + /* Extra delay ccast adds after confirming load */ + p->extra_update_delay = ws->cc->get_load_delay(ws->cc) / 1000.0; + + p->pcntx = (void *)ws; + + /* Create a suitable description */ + { + char buf[100]; + sprintf(buf,"ChromeCast '%s'",cc_id->name); + p->description = strdup(buf); + } + + // Set a default first color + if (ccwin_set_color(p, 128.0, 128.0, 128.0)) { + if (ddebug) fprintf(stderr,"new_ccwin set_color()\n"); + p->del(p); + return NULL; + } + + debugr("new_ccwin: return sucessfully\n"); + + return p; +} + diff --git a/spectro/ccwin.h b/spectro/ccwin.h new file mode 100644 index 0000000..4d32466 --- /dev/null +++ b/spectro/ccwin.h @@ -0,0 +1,40 @@ + +#ifndef CCWIN_H + +/* + * Argyll Color Correction System + * ChromeCast Display target patch window + * + * Author: Graeme W. Gill + * Date: 8/9/14 + * + * Copyright 2014 Graeme W. Gill + * All rights reserved. + * + * This material is licenced under the GNU AFFERO GENERAL PUBLIC LICENSE Version 3 :- + * see the License.txt file for licencing details. + */ + + +/* See ccast/ccmdns.h for function to get list of available ChromeCasts */ + +/* Create a ChromeCast display test window, default grey */ +dispwin *new_ccwin( +ccast_id *cc_id, /* ChromeCast to open */ +double width, double height, /* Width and height as multiplier of 10% width default. */ +double hoff, double voff, /* Offset from center in fraction of screen, range -1.0 .. 1.0 */ +int nowin, /* NZ if no window should be created - RAMDAC access only */ +int native, /* X0 = use current per channel calibration curve */ + /* X1 = set native linear output and use ramdac high precn. */ + /* 0X = use current color management cLut (MadVR) */ + /* 1X = disable color management cLUT (MadVR) */ +int *noramdac, /* Return nz if no ramdac access. native is set to X0 */ +int *nocm, /* Return nz if no CM cLUT access. native is set to 0X */ +int out_tvenc, /* 1 = use RGB Video Level encoding */ +int blackbg, /* NZ if whole screen should be filled with black */ +int verb, /* NZ for verbose prompts */ +int ddebug /* >0 to print debug statements to stderr */ +); + +#define CCWIN_H +#endif /* CCWIN_H */ diff --git a/spectro/ccxxmake.c b/spectro/ccxxmake.c index eff3afa..2df2e5f 100644 --- a/spectro/ccxxmake.c +++ b/spectro/ccxxmake.c @@ -27,17 +27,6 @@ /* TTBD: - Should add an option to set a UI_SELECTORS value. - - If any spectrometer gets a display type function (ie. refresh/non-refresh) - then it becomes difficult to know what to do with the -y option :- - - * Ignore the problem - don't set -y option on spectrometers. - Error shouldn't be significant for ref/nonref ? - - * Force the colorimeter to go first, record the ref/nonref state and - set in the spectrometer ? Make .ti3 file order the same for consistency ? - Would be nice to have a veryify option that produces a fit report of a matrix vs. the input files. @@ -70,7 +59,9 @@ #include "conv.h" #include "icoms.h" #include "inst.h" +#include "ccast.h" #include "dispwin.h" +#include "ui.h" #include "webwin.h" #ifdef NT # include "madvrwin.h" @@ -79,7 +70,9 @@ #include "ccss.h" #include "ccmx.h" #include "instappsup.h" -#include "spyd2setup.h" +#ifdef ENABLE_USB +# include "spyd2.h" +#endif #if defined (NT) #include @@ -105,15 +98,16 @@ static int gcc_bug_fix(int i) { /* device behaviour if not. */ void -usage(char *diag, ...) { +/* Flag = 0x0000 = default */ +/* Flag & 0x0001 = list ChromCast's */ +/* Flag & 0x0002 = list Technology choice */ +usage(int flag, char *diag, ...) { disppath **dp; icompaths *icmps = new_icompaths(0); inst2_capability cap = 0; fprintf(stderr,"Create CCMX or CCSS, Version %s\n",ARGYLL_VERSION_STR); fprintf(stderr,"Author: Graeme W. Gill, licensed under the AGPL Version 3\n"); - if (setup_spyd2() == 2) - fprintf(stderr,"WARNING: This file contains a proprietary firmware image, and may not be freely distributed !\n"); if (diag != NULL) { va_list args; fprintf(stderr,"Diagnostic: "); @@ -122,16 +116,16 @@ usage(char *diag, ...) { va_end(args); fprintf(stderr,"\n"); } - fprintf(stderr,"usage: ccmxmake [-options] output.ccmx\n"); - fprintf(stderr," -v Verbose mode\n"); - fprintf(stderr," -S Create CCSS rather than CCMX\n"); - fprintf(stderr," -f file1.ti3[,file2.ti3] Create from one or two .ti3 files rather than measure.\n"); + fprintf(stderr,"usage: ccmxmake -t dtech [-options] output.ccmx\n"); + fprintf(stderr," -v Verbose mode\n"); + fprintf(stderr," -S Create CCSS rather than CCMX\n"); + fprintf(stderr," -f file1.ti3[,file2.ti3] Create from one or two .ti3 files rather than measure.\n"); #if defined(UNIX_X11) fprintf(stderr," -display displayname Choose X11 display name\n"); - fprintf(stderr," -d n[,m] Choose the display n from the following list (default 1)\n"); - fprintf(stderr," Optionally choose different display m for VideoLUT access\n"); + fprintf(stderr," -d n[,m] Choose the display n from the following list (default 1)\n"); + fprintf(stderr," Optionally choose different display m for VideoLUT access\n"); #else - fprintf(stderr," -d n Choose the display from the following list (default 1)\n"); + fprintf(stderr," -d n Choose the display from the following list (default 1)\n"); #endif dp = get_displays(); if (dp == NULL || dp[0] == NULL) @@ -146,38 +140,63 @@ usage(char *diag, ...) { } } free_disppaths(dp); - fprintf(stderr," -dweb[:port] Display via a web server at port (default 8080)\n"); + fprintf(stderr," -dweb[:port] Display via a web server at port (default 8080)\n"); + fprintf(stderr," -dcc[:n] Display via n'th ChromeCast (default 1, ? for list)\n"); + if (flag & 0x001) { + ccast_id **ids; + if ((ids = get_ccids()) == NULL) { + fprintf(stderr," ** Error discovering ChromCasts **\n"); + } else { + if (ids[0] == NULL) + fprintf(stderr," ** No ChromCasts found **\n"); + else { + int i; + for (i = 0; ids[i] != NULL; i++) + fprintf(stderr," %d = '%s'\n",i+1,ids[i]->name); + free_ccids(ids); + } + } + } #ifdef NT - fprintf(stderr," -dmadvr Display via MadVR Video Renderer\n"); + fprintf(stderr," -dmadvr Display via MadVR Video Renderer\n"); #endif -// fprintf(stderr," -d fake Use a fake display device for testing, fake%s if present\n",ICC_FILE_EXT); - fprintf(stderr," -p Use telephoto mode (ie. for a projector) (if available)\n"); +// fprintf(stderr," -d fake Use a fake display device for testing, fake%s if present\n",ICC_FILE_EXT); + fprintf(stderr," -p Use telephoto mode (ie. for a projector) (if available)\n"); cap = inst_show_disptype_options(stderr, " -y c|l ", icmps, 1); - fprintf(stderr," -P ho,vo,ss[,vs] Position test window and scale it\n"); - fprintf(stderr," ho,vi: 0.0 = left/top, 0.5 = center, 1.0 = right/bottom etc.\n"); - fprintf(stderr," ss: 0.5 = half, 1.0 = normal, 2.0 = double etc.\n"); - fprintf(stderr," -F Fill whole screen with black background\n"); + fprintf(stderr," -z disptype Different display type for spectrometer (see -y)\n"); + fprintf(stderr," -P ho,vo,ss[,vs] Position test window and scale it\n"); + fprintf(stderr," ho,vi: 0.0 = left/top, 0.5 = center, 1.0 = right/bottom etc.\n"); + fprintf(stderr," ss: 0.5 = half, 1.0 = normal, 2.0 = double etc.\n"); + fprintf(stderr," -F Fill whole screen with black background\n"); #if defined(UNIX_X11) - fprintf(stderr," -n Don't set override redirect on test window\n"); + fprintf(stderr," -n Don't set override redirect on test window\n"); #endif - fprintf(stderr," -N Disable initial calibration of instrument if possible\n"); - fprintf(stderr," -H Use high resolution spectrum mode (if available)\n"); -// fprintf(stderr," -V Use adaptive measurement mode (if available)\n"); - fprintf(stderr," -C \"command\" Invoke shell \"command\" each time a color is set\n"); - fprintf(stderr," -o observ Choose CIE Observer for CCMX spectrometer data:\n"); - fprintf(stderr," 1931_2 (def), 1964_10, S&B 1955_2, shaw, J&V 1978_2\n"); - fprintf(stderr," -s steps Override default patch sequence combination steps (default %d)\n",DEFAULT_MSTEPS); - fprintf(stderr," -W n|h|x Override serial port flow control: n = none, h = HW, x = Xon/Xoff\n"); - fprintf(stderr," -D [level] Print debug diagnostics to stderr\n"); - fprintf(stderr," -E desciption Override the default overall description\n"); - fprintf(stderr," -I displayname Set display make and model description\n"); - fprintf(stderr," -T displaytech Set display technology description (ie. CRT, LCD etc.)\n"); - fprintf(stderr," -U c Set UI selection character(s)\n"); - fprintf(stderr," -Y r|n Set or override refresh/non-refresh display type\n"); - fprintf(stderr," -Y R:rate Override measured refresh rate with rate Hz\n"); - fprintf(stderr," -Y A Use non-adaptive integration time mode (if available).\n"); + fprintf(stderr," -N Disable initial calibration of instrument if possible\n"); + fprintf(stderr," -H Use high resolution spectrum mode (if available)\n"); +// fprintf(stderr," -V Use adaptive measurement mode (if available)\n"); + fprintf(stderr," -C \"command\" Invoke shell \"command\" each time a color is set\n"); + fprintf(stderr," -o observ Choose CIE Observer for CCMX spectrometer data:\n"); + fprintf(stderr," 1931_2 (def), 1964_10, S&B 1955_2, shaw, J&V 1978_2\n"); + fprintf(stderr," -s steps Override default patch sequence combination steps (default %d)\n",DEFAULT_MSTEPS); + fprintf(stderr," -W n|h|x Override serial port flow control: n = none, h = HW, x = Xon/Xoff\n"); + fprintf(stderr," -D [level] Print debug diagnostics to stderr\n"); + fprintf(stderr," -E desciption Override the default overall description\n"); + fprintf(stderr," -I displayname Set display make and model description (optional)\n"); + if (flag & 0x0002) { + int i; + disptech_info *list = disptech_get_list(); + for (i = 0; list[i].dtech != disptech_end; i++) + fprintf(stderr," %s %s %s\n",i == 0 ? "-t" : " ", list[i].lsel,list[i].desc); + } else { + fprintf(stderr," -t dtech Set display technology type\n"); + fprintf(stderr," (Use -?? to list technology choices)\n"); + } + fprintf(stderr," -U c Set UI selection character(s)\n"); + fprintf(stderr," -Y r|n Set or override refresh/non-refresh display type\n"); + fprintf(stderr," -Y R:rate Override measured refresh rate with rate Hz\n"); + fprintf(stderr," -Y A Use non-adaptive integration time mode (if available).\n"); fprintf(stderr," correction.ccmx | calibration.ccss\n"); - fprintf(stderr," File to save result to\n"); + fprintf(stderr," File to save result to\n"); if (icmps != NULL) icmps->del(icmps); exit(1); @@ -185,8 +204,7 @@ usage(char *diag, ...) { typedef double ary3[3]; -int main(int argc, char *argv[]) -{ +int main(int argc, char *argv[]) { int i,j; int fa, nfa, mfa; /* current argument we're looking at */ disppath *disp = NULL; /* Display being used */ @@ -206,7 +224,8 @@ int main(int argc, char *argv[]) int comno = COMPORT; /* COM port used */ flow_control fc = fc_nc; /* Default flow control */ int highres = 0; /* High res mode if available */ - int dtype = 0; /* Display kind, 0 = default, 1 = CRT, 2 = LCD */ + int dtype = 0; /* Display kind, 0 = default, 1 = CRT, 2 = LCD, etc */ + int sdtype = -1; /* Spectro display kind, -1 = use dtype */ int refrmode = -1; /* Refresh mode */ double refrate = 0.0; /* 0.0 = default, > 0.0 = override refresh rate */ int cbid = 0; /* Calibration base display mode ID */ @@ -214,6 +233,9 @@ int main(int argc, char *argv[]) int tele = 0; /* NZ if telephoto mode */ int noinitcal = 0; /* Disable initial calibration */ int webdisp = 0; /* NZ for web display, == port number */ + int ccdisp = 0; /* NZ for ChromeCast, == list index */ + ccast_id **ccids = NULL; + ccast_id *ccid = NULL; #ifdef NT int madvrdisp = 0; /* NZ for MadVR display */ #endif @@ -223,22 +245,23 @@ int main(int argc, char *argv[]) ary3 *refs = NULL; /* Reference XYZ values */ int gotref = 0; char *refname = NULL; /* Name of reference instrument */ + char *reffile = NULL; /* Name of reference file */ ary3 *cols = NULL; /* Colorimeter XYZ values */ int gotcol = 0; char *colname = NULL; /* Name of colorimeter instrument */ + char *colfile = NULL; /* Name of colorimeter file */ col *rdcols = NULL; /* Internal storage of all the patch colors */ int saved = 0; /* Saved result */ char innames[2][MAXNAMEL+1] = { "\000", "\000" }; /* .ti3 input names */ - char outname[MAXNAMEL+1] = "\000"; /* ccmx output file name */ + char outname[MAXNAMEL+5+1] = "\000"; /* ccmx output file name */ char *description = NULL; /* Given overall description */ char *displayname = NULL; /* Given display name */ - char *displaytech = NULL; /* Given display technology */ + disptech_info *dtinfo = NULL; /* Display technology */ char *uisel = NULL; /* UI selection letters */ int rv; set_exe_path(argv[0]); /* Set global exe_path and error_program */ check_if_not_interactive(); - setup_spyd2(); /* Load firware if available */ /* Process the arguments */ mfa = 0; /* Minimum final arguments */ @@ -258,8 +281,10 @@ int main(int argc, char *argv[]) } } - if (argv[fa][1] == '?') { - usage("Usage requested"); + if (argv[fa][1] == '?' || argv[fa][1] == '-') { + if (argv[fa][2] == '?' || argv[fa][2] == '-') + usage(2, "Extended usage requested"); + usage(0, "Usage requested"); } else if (argv[fa][1] == 'v') { verb = 1; @@ -271,7 +296,7 @@ int main(int argc, char *argv[]) } else if (argv[fa][1] == 'f') { char *cna, *f1 = NULL; fa = nfa; - if (na == NULL) usage("Expect argument to input file flag -f"); + if (na == NULL) usage(0,"Expect argument to input file flag -f"); if ((cna = strdup(na)) == NULL) error("Malloc failed"); @@ -297,7 +322,19 @@ int main(int argc, char *argv[]) if (na[3] == ':') { webdisp = atoi(na+4); if (webdisp == 0 || webdisp > 65535) - usage("Web port number must be in range 1..65535"); + usage(0,"Web port number must be in range 1..65535"); + } + fa = nfa; + } else if (strncmp(na,"cc",2) == 0 + || strncmp(na,"CC",2) == 0) { + ccdisp = 1; + if (na[2] == ':') { + if (na[3] < '0' || na[3] > '9') + usage(0x0001,"Available ChromeCasts"); + + ccdisp = atoi(na+3); + if (ccdisp <= 0) + usage(0,"ChromCast number must be in range 1..N"); } fa = nfa; #ifdef NT @@ -311,10 +348,10 @@ int main(int argc, char *argv[]) int ix, iv; if (strcmp(&argv[fa][2], "isplay") == 0 || strcmp(&argv[fa][2], "ISPLAY") == 0) { - if (++fa >= argc || argv[fa][0] == '-') usage("Parameter expected following -display"); + if (++fa >= argc || argv[fa][0] == '-') usage(0,"Parameter expected following -display"); setenv("DISPLAY", argv[fa], 1); } else { - if (na == NULL) usage("Parameter expected following -d"); + if (na == NULL) usage(0,"Parameter expected following -d"); fa = nfa; if (strcmp(na,"fake") == 0 || strcmp(na,"FAKE") == 0) { fake = 1; @@ -328,14 +365,14 @@ int main(int argc, char *argv[]) if (disp != NULL) free_a_disppath(disp); if ((disp = get_a_display(ix-1)) == NULL) - usage("-d parameter %d out of range",ix); + usage(0,"-d parameter %d out of range",ix); if (iv > 0) disp->rscreen = iv-1; } } #else int ix; - if (na == NULL) usage("Parameter expected following -d"); + if (na == NULL) usage(0,"Parameter expected following -d"); fa = nfa; if (strcmp(na,"fake") == 0 || strcmp(na,"FAKE") == 0) { fake = 1; @@ -346,7 +383,7 @@ int main(int argc, char *argv[]) if (disp != NULL) free_a_disppath(disp); if ((disp = get_a_display(ix-1)) == NULL) - usage("-d parameter %d out of range",ix); + usage(0,"-d parameter %d out of range",ix); } #endif } @@ -358,9 +395,9 @@ int main(int argc, char *argv[]) /* COM port */ } else if (argv[fa][1] == 'c') { fa = nfa; - if (na == NULL) usage("Paramater expected following -c"); + if (na == NULL) usage(0,"Paramater expected following -c"); comno = atoi(na); - if (comno < 1 || comno > 40) usage("-c parameter %d out of range",comno); + if (comno < 1 || comno > 40) usage(0,"-c parameter %d out of range",comno); /* Telephoto */ } else if (argv[fa][1] == 'p') { @@ -369,7 +406,7 @@ int main(int argc, char *argv[]) /* Display type */ } else if (argv[fa][1] == 'y') { fa = nfa; - if (na == NULL) usage("Parameter expected after -y"); + if (na == NULL) usage(0,"Parameter expected after -y"); dtype = na[0]; /* For ccss, set a default */ @@ -379,22 +416,28 @@ int main(int argc, char *argv[]) refrmode = 0; } + /* Spectro display type */ + } else if (argv[fa][1] == 'z') { + fa = nfa; + if (na == NULL) usage(0,"Parameter expected after -z"); + sdtype = na[0]; + /* Test patch offset and size */ } else if (argv[fa][1] == 'P') { fa = nfa; - if (na == NULL) usage("Parameter expected after -P"); + if (na == NULL) usage(0,"Parameter expected after -P"); if (sscanf(na, " %lf,%lf,%lf,%lf ", &ho, &vo, &hpatscale, &vpatscale) == 4) { ; } else if (sscanf(na, " %lf,%lf,%lf ", &ho, &vo, &hpatscale) == 3) { vpatscale = hpatscale; } else { - usage("-P parameter '%s' not recognised",na); + usage(0,"-P parameter '%s' not recognised",na); } if (ho < 0.0 || ho > 1.0 || vo < 0.0 || vo > 1.0 || hpatscale <= 0.0 || hpatscale > 50.0 || vpatscale <= 0.0 || vpatscale > 50.0) - usage("-P parameters %f %f %f %f out of range",ho,vo,hpatscale,vpatscale); + usage(0,"-P parameters %f %f %f %f out of range",ho,vo,hpatscale,vpatscale); ho = 2.0 * ho - 1.0; vo = 2.0 * vo - 1.0; @@ -417,7 +460,7 @@ int main(int argc, char *argv[]) /* Spectral Observer type (only relevant for CCMX) */ } else if (argv[fa][1] == 'o' || argv[fa][1] == 'O') { fa = nfa; - if (na == NULL) usage("Parameter expecte after -o"); + if (na == NULL) usage(0,"Parameter expecte after -o"); if (strcmp(na, "1931_2") == 0) { /* Classic 2 degree */ spec = 2; observ = icxOT_CIE_1931_2; @@ -434,25 +477,25 @@ int main(int argc, char *argv[]) spec = 2; observ = icxOT_Shaw_Fairchild_2; } else - usage("-o parameter '%s' not recognised",na); + usage(0,"-o parameter '%s' not recognised",na); } else if (argv[fa][1] == 's') { fa = nfa; - if (na == NULL) usage("Parameter expecte after -s"); + if (na == NULL) usage(0,"Parameter expecte after -s"); msteps = atoi(na); if (msteps < 1 || msteps > 16) - usage("-s parameter value %d is outside the range 1 to 16",msteps); + usage(0,"-s parameter value %d is outside the range 1 to 16",msteps); /* Change color callout */ } else if (argv[fa][1] == 'C') { fa = nfa; - if (na == NULL) usage("Parameter expected after -C"); + if (na == NULL) usage(0,"Parameter expected after -C"); ccallout = na; /* Serial port flow control */ } else if (argv[fa][1] == 'W') { fa = nfa; - if (na == NULL) usage("Paramater expected following -W"); + if (na == NULL) usage(0,"Paramater expected following -W"); if (na[0] == 'n' || na[0] == 'N') fc = fc_none; else if (na[0] == 'h' || na[0] == 'H') @@ -460,7 +503,7 @@ int main(int argc, char *argv[]) else if (na[0] == 'x' || na[0] == 'X') fc = fc_XonXOff; else - usage("-W parameter '%c' not recognised",na[0]); + usage(0,"-W parameter '%c' not recognised",na[0]); } else if (argv[fa][1] == 'D') { debug = 1; @@ -472,24 +515,28 @@ int main(int argc, char *argv[]) } else if (argv[fa][1] == 'I') { fa = nfa; - if (na == NULL) usage("Expect argument to display description flag -I"); + if (na == NULL) usage(0,"Expect argument to display description flag -I"); displayname = strdup(na); - } else if (argv[fa][1] == 'T') { + } else if (argv[fa][1] == 't') { fa = nfa; - if (na == NULL) usage("Expect argument to display technology flag -T"); - displaytech = strdup(na); + if (na == NULL) usage(2,"Expect argument to display technology flag -t"); + dtinfo = disptech_get_list(); + if (na[1] != '\000') + usage(2,"Expect single character argument to display technology flag -t"); + if ((dtinfo = disptech_select(dtinfo, na[0])) == NULL) + usage(2,"-t parameter '%c' not recognized",na[0]); /* Copyright string */ } else if (argv[fa][1] == 'E') { fa = nfa; - if (na == NULL) usage("Expect argument to overall description flag -E"); + if (na == NULL) usage(0,"Expect argument to overall description flag -E"); description = strdup(na); /* Extra flags */ } else if (argv[fa][1] == 'Y') { if (na == NULL) - usage("Flag '-Y' expects extra flag"); + usage(0,"Flag '-Y' expects extra flag"); if (na[0] == 'r') { refrmode = 1; @@ -497,32 +544,32 @@ int main(int argc, char *argv[]) refrmode = 0; } else if (na[0] == 'R') { if (na[1] != ':') - usage("-Y R:rate syntax incorrect"); + usage(0,"-Y R:rate syntax incorrect"); refrate = atof(na+2); if (refrate < 5.0 || refrate > 150.0) - usage("-Y R:rate %f Hz not in valid range",refrate); + usage(0,"-Y R:rate %f Hz not in valid range",refrate); } else if (na[0] == 'A') { nadaptive = 1; } else { - usage("Flag '-Z %c' not recognised",na[0]); + usage(0,"Flag '-Z %c' not recognised",na[0]); } fa = nfa; /* UI selection character */ } else if (argv[fa][1] == 'U') { fa = nfa; - if (na == NULL || na[0] == '\000') usage("Expect argument to flag -U"); + if (na == NULL || na[0] == '\000') usage(0,"Expect argument to flag -U"); uisel = na; for (i = 0; uisel[i] != '\000'; i++) { if (!( (uisel[i] >= '0' && uisel[i] <= '9') || (uisel[i] >= 'A' && uisel[i] <= 'Z') || (uisel[i] >= 'a' && uisel[i] <= 'z'))) { - usage("-U character(s) must be 0-9,A-Z,a-z"); + usage(0,"-U character(s) must be 0-9,A-Z,a-z"); } } } else - usage("Flag '-%c' not recognised",argv[fa][1]); + usage(0,"Flag '-%c' not recognised",argv[fa][1]); } else break; @@ -530,17 +577,19 @@ int main(int argc, char *argv[]) /* Get the output ccmx file name argument */ if (fa >= argc) - usage("Output filname expected"); + usage(0,"Output filname expected"); strncpy(outname,argv[fa++],MAXNAMEL-1); outname[MAXNAMEL-1] = '\000'; + if (strrchr(outname, '.') == NULL) /* no extension */ + strcat(outname, doccss ? ".ccss" : ".ccmx"); if (fakeseq && doccss) error("Fake CCSS test not implemeted"); printf("\n"); - if (displayname == NULL && displaytech == NULL) - error("Either the display description (-I) or technology (-T) needs to be set"); + if (dtinfo == NULL) + error("Display technology (-t) must be set"); /* CCSS: See if we're working from a .ti3 file */ if (doccss && innames[0][0] != '\000') { @@ -617,7 +666,7 @@ int main(int argc, char *argv[]) cgf = NULL; if (description == NULL) { - char *disp = displaytech != NULL ? displaytech : displayname; + char *disp = displayname != NULL ? displayname : dtinfo->desc; char *tt = "CCSS for "; if ((description = malloc(strlen(disp) + strlen(tt) + 1)) == NULL) error("Malloc failed"); @@ -649,7 +698,7 @@ int main(int argc, char *argv[]) error("new_ccss() failed"); if (cc->set_ccss(cc, "Argyll ccxxmake", NULL, description, displayname, - displaytech, refrmode, uisel, refname, samples, npat)) { + dtinfo->dtech, refrmode, uisel, refname, samples, npat)) { error("set_ccss failed with '%s'\n",cc->err); } if(cc->write_ccss(cc, outname)) @@ -733,6 +782,7 @@ int main(int argc, char *argv[]) error("Found two spectral files - expect one colorimtric file"); current = refs; refname = strdup(cgf->t[0].kdata[ii]); + reffile = innames[n]; gotref = 1; } else if (strcmp(cgf->t[0].kdata[ti],"NO") == 0) { @@ -740,6 +790,7 @@ int main(int argc, char *argv[]) if (gotcol) { /* Copy what we though was cols to refs */ refname = colname; + reffile = colfile; for (i = 0; i < npat; i++) { refs[i][0] = cols[i][0]; refs[i][1] = cols[i][1]; @@ -767,6 +818,7 @@ int main(int argc, char *argv[]) } current = cols; colname = strdup(cgf->t[0].kdata[ii]); + colfile = innames[n]; gotcol = 1; } else { error ("Unknown INSTRUMENT_TYPE_SPECTRAL value '%s'",cgf->t[0].kdata[ti]); @@ -894,7 +946,7 @@ int main(int argc, char *argv[]) strcat(colname, ")"); } if (description == NULL) { - char *disp = displaytech != NULL ? displaytech : displayname; + char *disp = displayname != NULL ? displayname : dtinfo->desc; if ((description = malloc(strlen(colname) + strlen(disp) + 4)) == NULL) error("Malloc failed"); strcpy(description, colname); @@ -903,15 +955,15 @@ int main(int argc, char *argv[]) } if (refrmode < 0) - error("The display refresh mode is not known - use the -Y flag"); + error("The display refresh mode is not in '%s' - use the -Y flag",colfile); if (cbid == 0) - error("The calibration base display mode not specified in the .ti3 file"); + error("The calibration base display mode not specified in the '%s' file",colfile); if ((cc = new_ccmx()) == NULL) error("new_ccmx() failed"); - if (cc->create_ccmx(cc, description, colname, displayname, displaytech, + if (cc->create_ccmx(cc, description, colname, displayname, dtinfo->dtech, refrmode, cbid, uisel, refname, npat, refs, cols)) { error("create_ccmx failed with '%s'\n",cc->err); } @@ -924,7 +976,7 @@ int main(int argc, char *argv[]) } if(cc->write_ccmx(cc, outname)) - printf("\nWriting CCMX file '%s' failed\n",outname); + printf("\nWriting CCMX file '%s' failed with '%s'\n",outname,cc->err); else printf("\nWriting CCMX file '%s' succeeded\n",outname); cc->del(cc); @@ -935,12 +987,13 @@ int main(int argc, char *argv[]) /* No explicit display has been set */ if ( #ifndef SHOW_WINDOW_ONFAKE - !fake && + !fake #endif - webdisp == 0 #ifdef NT && madvrdisp == 0 #endif + && webdisp == 0 + && ccdisp == 0 && disp == NULL) { int ix = 0; #if defined(UNIX_X11) @@ -967,6 +1020,19 @@ int main(int argc, char *argv[]) displayname = strdup("fake display"); } + /* If we've requested ChromeCast, look it up */ + if (ccdisp) { + if ((ccids = get_ccids()) == NULL) + error("discovering ChromCasts failed"); + if (ccids[0] == NULL) + error("There are no ChromCasts to use\n"); + for (i = 0; ccids[i] != NULL; i++) + ; + if (ccdisp < 1 || ccdisp > i) + error("Chosen ChromCasts (%d) is outside list (1..%d)\n",ccdisp,i); + ccid = ccids[ccdisp-1]; + } + /* Create grid of device test values */ { int j; @@ -1139,7 +1205,8 @@ int main(int argc, char *argv[]) for (i = 0; ; i++) { if (paths[i] == NULL) break; - if (paths[i]->itype == instSpyder2 && setup_spyd2() == 0) + if ((paths[i]->itype == instSpyder1 && setup_spyd2(0) == 0) + || (paths[i]->itype == instSpyder2 && setup_spyd2(1) == 0)) fprintf(stderr," %d = '%s' !! Disabled - no firmware !!\n",i+1,paths[i]->name); else fprintf(stderr," %d = '%s'\n",i+1,paths[i]->name); @@ -1177,18 +1244,21 @@ int main(int argc, char *argv[]) /* Should we use current cal rather than native ??? */ if ((dr = new_disprd(&errc, icmps->get_path(icmps, comno), - fc, dtype, 1, tele, nadaptive, + fc, dtype, sdtype, 1, tele, nadaptive, noinitcal, 0, highres, refrate, 3, NULL, NULL, NULL, 0, disp, 0, blackbg, - override, webdisp, + override, webdisp, ccid, #ifdef NT madvrdisp, #endif ccallout, NULL, 100.0 * hpatscale, 100.0 * vpatscale, ho, vo, - NULL, NULL, 0, 2, icxOT_default, NULL, - 0, 0, "fake" ICC_FILE_EXT, g_log)) == NULL) - error("new_disprd failed with '%s'\n",disprd_err(errc)); + disptech_unknown, 0, NULL, NULL, 0, 2, icxOT_default, NULL, + 0, 0, "fake" ICC_FILE_EXT, g_log)) == NULL) { + printf("Opening the instrument failed with '%s'. Try selecting it again ?\n", + disprd_err(errc)); + continue; + } it = dr->it; @@ -1289,7 +1359,7 @@ int main(int argc, char *argv[]) } if (description == NULL) { - char *disp = displaytech != NULL ? displaytech : displayname; + char *disp = displayname != NULL ? displayname : dtinfo->desc; char *tt = "CCSS for "; if ((description = malloc(strlen(disp) + strlen(tt) + 1)) == NULL) error("Malloc failed"); @@ -1326,11 +1396,11 @@ int main(int argc, char *argv[]) error("new_ccss() failed"); if (cc->set_ccss(cc, "Argyll ccxxmake", NULL, description, displayname, - displaytech, refrmode, NULL, refname, samples, npat)) { + dtinfo->dtech, refrmode, NULL, refname, samples, npat)) { error("set_ccss failed with '%s'\n",cc->err); } if(cc->write_ccss(cc, outname)) - printf("\nWriting CCSS file '%s' failed\n",outname); + printf("\nWriting CCSS file '%s' failed with '%s'\n",outname,cc->err); else printf("\nWriting CCSS file '%s' succeeded\n",outname); cc->del(cc); @@ -1380,7 +1450,7 @@ int main(int argc, char *argv[]) if ((cc = new_ccmx()) == NULL) error("new_ccmx() failed"); - if (cc->create_ccmx(cc, description, colname, displayname, displaytech, + if (cc->create_ccmx(cc, description, colname, displayname, dtinfo->dtech, refrmode, cbid, uisel, refname, npat, refs, cols)) { error("create_ccmx failed with '%s'\n",cc->err); } @@ -1393,7 +1463,7 @@ int main(int argc, char *argv[]) } if(cc->write_ccmx(cc, outname)) - printf("\nWriting CCMX file '%s' failed\n",outname); + printf("\nWriting CCMX file '%s' failed with '%s'\n",outname,cc->err); else printf("\nWriting CCMX file '%s' succeeded\n",outname); cc->del(cc); @@ -1418,6 +1488,7 @@ int main(int argc, char *argv[]) free(displayname); if (icmps != NULL) icmps->del(icmps); + free_ccids(ccids); } #ifdef DEBUG diff --git a/spectro/chartread.c b/spectro/chartread.c index 376fc1c..cfbeee6 100644 --- a/spectro/chartread.c +++ b/spectro/chartread.c @@ -17,6 +17,10 @@ /* using a spectrometer or colorimeter. */ /* TTBD + * + * When there is a strip misread, should offer the option + * of skipping the strip. + * * * Should an a -X [xl] mode that reads a simple list of readings * from a file. @@ -71,18 +75,19 @@ #include "numlib.h" #include "icc.h" #include "xicc.h" -#include "ccmx.h" -#include "ccss.h" #include "insttypes.h" #include "conv.h" #include "icoms.h" #include "inst.h" +#include "ccmx.h" +#include "ccss.h" #include "dispwin.h" +#include "ui.h" +#include "ccast.h" #include "dispsup.h" #include "alphix.h" #include "sort.h" #include "instappsup.h" -#include "spyd2setup.h" #include @@ -333,7 +338,7 @@ a1log *log /* verb, debug & error log */ return -1; } } else - printf("Display type ignored - instrument doesn't support display type\n"); + printf("Display type ignored - instrument doesn't support display type selection\n"); } if (spectral && !IMODETST(cap, inst_mode_spectral)) { @@ -357,7 +362,7 @@ a1log *log /* verb, debug & error log */ it->del(it); return -1; } - if ((rv = it->col_cor_mat(it, cx->matrix)) != inst_ok) { + if ((rv = it->col_cor_mat(it, cx->dtech, cx->cc_cbid, cx->matrix)) != inst_ok) { printf("\nSetting Colorimeter Correction Matrix failed with error :'%s' (%s)\n", it->inst_interp_error(it, rv), it->interp_error(it, rv)); cx->del(cx); @@ -395,7 +400,7 @@ a1log *log /* verb, debug & error log */ it->del(it); return -1; } - if ((rv = it->col_cal_spec_set(it, cs->samples, cs->no_samp)) != inst_ok) { + if ((rv = it->col_cal_spec_set(it, cs->dtech, cs->samples, cs->no_samp)) != inst_ok) { printf("\nSetting Colorimeter Calibration Spectral Samples failed with error :'%s' (%s)\n", it->inst_interp_error(it, rv), it->interp_error(it, rv)); cs->del(cs); @@ -447,7 +452,6 @@ a1log *log /* verb, debug & error log */ it->del(it); return -1; } - highres = 1; } else { a1logv(log, 1, "Modified patch consistency tolerance ignored - instrument doesn't support it\n"); } @@ -1072,7 +1076,7 @@ a1log *log /* verb, debug & error log */ /* Do any needed calibration before the user places the instrument on a desired spot */ if (it->needs_calibration(it) & inst_calt_n_dfrble_mask) { - if ((rv = inst_handle_calibrate(it, inst_calt_needed, inst_calc_none, NULL, NULL)) + if ((rv = inst_handle_calibrate(it, inst_calt_needed, inst_calc_none, NULL, NULL, 0)) != inst_ok) { printf("\nCalibration failed with error :'%s' (%s)\n", it->inst_interp_error(it, rv), it->interp_error(it, rv)); @@ -1288,7 +1292,7 @@ a1log *log /* verb, debug & error log */ if (cap2 & inst2_no_feedback) bad_beep(); printf("\nStrip read failed because instruments needs calibration\n"); - ev = inst_handle_calibrate(it, inst_calt_needed, inst_calc_none, NULL, NULL); + ev = inst_handle_calibrate(it, inst_calt_needed, inst_calc_none, NULL, NULL, 0); if (ev != inst_ok) { /* Abort or fatal error */ it->del(it); return -1; @@ -1574,7 +1578,7 @@ a1log *log /* verb, debug & error log */ /* Do any needed calibration before the user places the instrument on a desired spot */ if (it->needs_calibration(it) & inst_calt_n_dfrble_mask) { - if ((rv = inst_handle_calibrate(it, inst_calt_needed, inst_calc_none, NULL, NULL)) + if ((rv = inst_handle_calibrate(it, inst_calt_needed, inst_calc_none, NULL, NULL, 0)) != inst_ok) { printf("\nCalibration failed with error :'%s' (%s)\n", it->inst_interp_error(it, rv), it->interp_error(it, rv)); @@ -1802,7 +1806,7 @@ a1log *log /* verb, debug & error log */ if (cap2 & inst2_no_feedback) bad_beep(); printf("\nSpot read failed because instruments needs calibration\n"); - ev = inst_handle_calibrate(it, inst_calt_needed, inst_calc_none, NULL, NULL); + ev = inst_handle_calibrate(it, inst_calt_needed, inst_calc_none, NULL, NULL, 0); if (ev != inst_ok) { /* Abort or fatal error */ it->del(it); return -1; @@ -2127,8 +2131,6 @@ int main(int argc, char *argv[]) { set_exe_path(argv[0]); /* Set global exe_path and error_program */ check_if_not_interactive(); - setup_spyd2(); /* Load firware if available */ - if (argc <= 1) usage(); diff --git a/spectro/colorhug.c b/spectro/colorhug.c index 0152000..76e5bfb 100644 --- a/spectro/colorhug.c +++ b/spectro/colorhug.c @@ -140,7 +140,9 @@ colorhug_interp_error(inst *pp, int ec) { case COLORHUG_NO_COMS: return "Communications hasn't been established"; case COLORHUG_NOT_INITED: - return "Insrument hasn't been initialised"; + return "Instrument hasn't been initialised"; + case COLORHUG_WRONG_MODEL: + return "Attempt to use wrong command for model"; default: return "Unknown error code"; } @@ -390,8 +392,10 @@ colorhug_take_measurement(colorhug *p, double XYZ[3]) return ev; /* Convert to doubles */ - for (i = 0; i < 3; i++) + for (i = 0; i < 3; i++) { +//printf("%d raw = 0x%x\n",i,buf2int_le(obuf + i * 4)); XYZ[i] = p->postscale * buf2pfdouble(obuf + i * 4); + } } else { int icx = 64 + p->icx; unsigned char obuf[3 * 4]; @@ -411,8 +415,10 @@ colorhug_take_measurement(colorhug *p, double XYZ[3]) return ev; /* Convert to doubles */ - for (i = 0; i < 3; i++) + for (i = 0; i < 3; i++) { +//printf("%d raw = 0x%x\n",i,buf2int_le(obuf + i * 4)); XYZ[i] = buf2pfdouble(obuf + i * 4); + } } /* Apply the colorimeter correction matrix */ @@ -447,6 +453,7 @@ colorhug_init_coms(inst *pp, baud_rate br, flow_control fc, double tout) { a1logd(p->log, 3, "colorhug_init_coms: About to init USB\n"); /* Set config, interface, write end point, read end point */ + // ~~ does Linux need icomuf_reset_before_close ? Why ? if ((se = p->icom->set_usb_port(p->icom, 1, 0x00, 0x00, icomuf_detach, 0, NULL)) != ICOM_OK) { a1logd(p->log, 1, "colorhug_init_coms: set_usb_port failed ICOM err 0x%x\n",se); @@ -515,6 +522,9 @@ colorhug_set_multiplier (colorhug *p, int multiplier) inst_code ev; unsigned char ibuf[1]; + if (p->stype != ch_one) + return colorhug_interp_code((inst *)p, COLORHUG_WRONG_MODEL); + /* Set the desired multiplier */ ibuf[0] = multiplier; ev = colorhug_command(p, ch_set_mult, @@ -531,6 +541,9 @@ colorhug_set_integral (colorhug *p, int integral) inst_code ev; unsigned char ibuf[2]; + if (p->stype != ch_one) + return colorhug_interp_code((inst *)p, COLORHUG_WRONG_MODEL); + /* Set the desired integral time */ short2buf_le(ibuf + 0, integral); ev = colorhug_command(p, ch_set_integral, @@ -587,15 +600,18 @@ colorhug_init_inst(inst *pp) if (ev != inst_ok) return ev; - /* Turn the sensor on */ - ev = colorhug_set_multiplier(p, 0x03); - if (ev != inst_ok) - return ev; + if (p->stype == ch_one) { - /* Set the integral time to maximum precision */ - ev = colorhug_set_integral(p, 0xffff); - if (ev != inst_ok) - return ev; + /* Turn the sensor on */ + ev = colorhug_set_multiplier(p, 0x03); + if (ev != inst_ok) + return ev; + + /* Set the integral time to maximum precision */ + ev = colorhug_set_integral(p, 0xffff); + if (ev != inst_ok) + return ev; + } if (p->maj <= 1 && p->min <= 1 && p->uro <= 4) { @@ -691,9 +707,11 @@ instClamping clamp) { /* NZ if clamp XYZ/Lab to be +ve */ } /* Read the XYZ value */ - if ((rv = colorhug_take_measurement(p, val->XYZ)) != inst_ok) { + rv = colorhug_take_measurement(p, val->XYZ); + + if (rv != inst_ok) return rv; - } + /* This may not change anything since instrument may clamp */ if (clamp) icmClamp3(val->XYZ, val->XYZ); @@ -709,27 +727,43 @@ instClamping clamp) { /* NZ if clamp XYZ/Lab to be +ve */ return rv; } +static inst_code set_base_disp_type(colorhug *p, int cbid); + /* Insert a colorimetric correction matrix */ inst_code colorhug_col_cor_mat( inst *pp, +disptech dtech, /* Use disptech_unknown if not known */ +int cbid, /* Calibration display type base ID required, 1 if unknown */ double mtx[3][3] ) { colorhug *p = (colorhug *)pp; + inst_code ev; if (!p->gotcoms) return inst_no_coms; if (!p->inited) return inst_no_init; - - if (mtx == NULL) { + if ((ev = set_base_disp_type(p, cbid)) != inst_ok) + return ev; + if (mtx == NULL) icmSetUnity3x3(p->ccmat); - } else { - if (p->cbid == 0) { - a1loge(p->log, 1, "colorhug: can't set col_cor_mat over non-base display type\n"); - return inst_wrong_setup; - } + else icmCpy3x3(p->ccmat, mtx); + + p->dtech = dtech; + p->refrmode = disptech_get_id(dtech)->refr; + p->cbid = 0; /* Base has been overwitten */ + + if (p->log->debug >= 4) { + a1logd(p->log,4,"ccmat = %f %f %f\n", + p->ccmat[0][0], p->ccmat[0][1], p->ccmat[0][2]); + a1logd(p->log,4," %f %f %f\n", + p->ccmat[1][0], p->ccmat[1][1], p->ccmat[1][2]); + a1logd(p->log,4," %f %f %f\n\n", + p->ccmat[2][0], p->ccmat[2][1], p->ccmat[2][2]); + a1logd(p->log,4,"ucbid = %d, cbid = %d\n",p->ucbid, p->cbid); + a1logd(p->log,4,"\n"); } return inst_ok; @@ -747,6 +781,7 @@ colorhug_interp_code(inst *pp, int ec) { case COLORHUG_INTERNAL_ERROR: case COLORHUG_NO_COMS: case COLORHUG_NOT_INITED: + case COLORHUG_WRONG_MODEL: return inst_internal_error | ec; case COLORHUG_COMS_FAIL: @@ -868,6 +903,7 @@ static inst_disptypesel colorhug_disptypesel[7] = { "l", /* sel */ "LCD, CCFL Backlight", /* desc */ 0, /* refr */ + disptech_lcd_ccfl, /* disptype */ 0 /* ix */ }, { @@ -876,6 +912,7 @@ static inst_disptypesel colorhug_disptypesel[7] = { "c", "CRT display", 0, + disptech_crt, 1 }, { @@ -884,6 +921,7 @@ static inst_disptypesel colorhug_disptypesel[7] = { "p", "Projector", 0, + disptech_dlp, 2 }, { @@ -892,6 +930,7 @@ static inst_disptypesel colorhug_disptypesel[7] = { "e", "LCD, White LED Backlight", 0, + disptech_lcd_wled, 3 }, { @@ -900,6 +939,7 @@ static inst_disptypesel colorhug_disptypesel[7] = { "F", "Factory matrix (For Calibration)", 0, + disptech_unknown, 10 }, { @@ -908,6 +948,7 @@ static inst_disptypesel colorhug_disptypesel[7] = { "R", "Raw Reading (For Factory matrix Calibration)", 0, + disptech_unknown, 11 }, { @@ -916,6 +957,7 @@ static inst_disptypesel colorhug_disptypesel[7] = { "", "", 0, + disptech_none, 0 } }; @@ -947,23 +989,67 @@ int recreate /* nz to re-check for new ccmx & ccss files */ return inst_ok; } -/* Given a display type entry, setup for that type */ +/* Given a display type implementation from inst_disptypesel */ static inst_code set_disp_type(colorhug *p, inst_disptypesel *dentry) { int ix; - /* The HW handles up to 6 calibrations */ - ix = dentry->ix; - if (ix != 10 && ix != 11 && (ix < 0 || ix > 3)) - return inst_unsupported; - - p->icx = ix; - p->refrmode = dentry->refr; - p->cbid = dentry->cbid; if (dentry->flags & inst_dtflags_ccmx) { + inst_code ev; + if ((ev = set_base_disp_type(p, dentry->cc_cbid)) != inst_ok) + return ev; icmCpy3x3(p->ccmat, dentry->mat); + p->dtech = dentry->dtech; + p->cbid = 0; /* Can't be a base type */ + } else { + + /* The HW handles up to 6 calibrations */ + ix = dentry->ix; + if (ix != 10 && ix != 11 && (ix < 0 || ix > 3)) + return inst_unsupported; + + p->icx = ix; + p->dtech = dentry->dtech; + p->cbid = dentry->cbid; + p->ucbid = dentry->cbid; /* This is underying base if dentry is base selection */ icmSetUnity3x3(p->ccmat); } + p->refrmode = dentry->refr; + + if (p->log->debug >= 4) { + a1logd(p->log,4,"ccmat = %f %f %f\n", + p->ccmat[0][0], p->ccmat[0][1], p->ccmat[0][2]); + a1logd(p->log,4," %f %f %f\n", + p->ccmat[1][0], p->ccmat[1][1], p->ccmat[1][2]); + a1logd(p->log,4," %f %f %f\n\n", + p->ccmat[2][0], p->ccmat[2][1], p->ccmat[2][2]); + a1logd(p->log,4,"ucbid = %d, cbid = %d\n",p->ucbid, p->cbid); + a1logd(p->log,4,"\n"); + } + + return inst_ok; +} + +/* Set the display type */ +static inst_code colorhug_set_disptype(inst *pp, int ix) { + colorhug *p = (colorhug *)pp; + inst_code ev; + inst_disptypesel *dentry; + + if (p->dtlist == NULL) { + if ((ev = inst_creat_disptype_list(pp, &p->ndtlist, &p->dtlist, + colorhug_disptypesel, 0 /* doccss*/, 1 /* doccmx */)) != inst_ok) + return ev; + } + + if (ix < 0 || ix >= p->ndtlist) + return inst_unsupported; + + dentry = &p->dtlist[ix]; + + if ((ev = set_disp_type(p, dentry)) != inst_ok) { + return ev; + } return inst_ok; } @@ -994,30 +1080,56 @@ static inst_code set_default_disp_type(colorhug *p) { return inst_ok; } -/* Set the display type */ -static inst_code colorhug_set_disptype(inst *pp, int ix) { - colorhug *p = (colorhug *)pp; +/* Setup the display type to the given base type */ +static inst_code set_base_disp_type(colorhug *p, int cbid) { inst_code ev; - inst_disptypesel *dentry; + int i; + if (cbid == 0) { + a1loge(p->log, 1, "colorhug set_base_disp_type: can't set base display type of 0\n"); + return inst_wrong_setup; + } if (p->dtlist == NULL) { - if ((ev = inst_creat_disptype_list(pp, &p->ndtlist, &p->dtlist, + if ((ev = inst_creat_disptype_list((inst *)p, &p->ndtlist, &p->dtlist, colorhug_disptypesel, 0 /* doccss*/, 1 /* doccmx */)) != inst_ok) return ev; } - if (ix < 0 || ix >= p->ndtlist) - return inst_unsupported; - - dentry = &p->dtlist[ix]; - - if ((ev = set_disp_type(p, dentry)) != inst_ok) { + for (i = 0; !(p->dtlist[i].flags & inst_dtflags_end); i++) { + if (!(p->dtlist[i].flags & inst_dtflags_ccmx) /* Prevent infinite recursion */ + && p->dtlist[i].cbid == cbid) + break; + } + if (p->dtlist[i].flags & inst_dtflags_end) { + a1loge(p->log, 1, "set_base_disp_type: failed to find cbid %d!\n",cbid); + return inst_wrong_setup; + } + if ((ev = set_disp_type(p, &p->dtlist[i])) != inst_ok) { return ev; } return inst_ok; } +/* Get the disptech and other corresponding info for the current */ +/* selected display type. Returns disptype_unknown by default. */ +/* Because refrmode can be overridden, it may not match the refrmode */ +/* of the dtech. (Pointers may be NULL if not needed) */ +static inst_code colorhug_get_disptechi( +inst *pp, +disptech *dtech, +int *refrmode, +int *cbid) { + colorhug *p = (colorhug *)pp; + if (dtech != NULL) + *dtech = p->dtech; + if (refrmode != NULL) + *refrmode = p->refrmode; + if (cbid != NULL) + *cbid = p->cbid; + return inst_ok; +} + /* * Set or reset an optional mode. * @@ -1042,24 +1154,6 @@ colorhug_get_set_opt(inst *pp, inst_opt_type m, ...) if (!p->inited) return inst_no_init; - /* Get the display type information */ - if (m == inst_opt_get_dtinfo) { - va_list args; - int *refrmode, *cbid; - - va_start(args, m); - refrmode = va_arg(args, int *); - cbid = va_arg(args, int *); - va_end(args); - - if (refrmode != NULL) - *refrmode = p->refrmode; - if (cbid != NULL) - *cbid = p->cbid; - - return inst_ok; - } - /* Operate the LEDs */ if (m == inst_opt_get_gen_ledmask) { va_list args; @@ -1111,6 +1205,7 @@ extern colorhug *new_colorhug(icoms *icom, instType itype) { p->set_mode = colorhug_set_mode; p->get_disptypesel = colorhug_get_disptypesel; p->set_disptype = colorhug_set_disptype; + p->get_disptechi = colorhug_get_disptechi; p->get_set_opt = colorhug_get_set_opt; p->read_sample = colorhug_read_sample; p->col_cor_mat = colorhug_col_cor_mat; @@ -1120,7 +1215,11 @@ extern colorhug *new_colorhug(icoms *icom, instType itype) { p->icom = icom; p->itype = icom->itype; + if (itype == instColorHug2) + p->stype = ch_two; + icmSetUnity3x3(p->ccmat); + p->dtech = disptech_unknown; return p; } diff --git a/spectro/colorhug.h b/spectro/colorhug.h index a591608..90fff6f 100644 --- a/spectro/colorhug.h +++ b/spectro/colorhug.h @@ -57,7 +57,13 @@ #define COLORHUG_BAD_RD_LENGTH 0x26 #define COLORHUG_BAD_RET_CMD 0x27 #define COLORHUG_BAD_RET_STAT 0x28 +#define COLORHUG_WRONG_MODEL 0x29 +/* Sub-type of instrument */ +typedef enum { + ch_one = 0, /* Original ColorHug */ + ch_two = 1 /* ColorHug2 */ +} colorhug_model; /* COLORHUG communication object */ struct _colorhug { @@ -67,13 +73,16 @@ struct _colorhug { inst_opt_type trig; /* Reading trigger mode */ + colorhug_model stype; /* Instrument sub-model */ int maj, min, uro; /* Version number */ int ser_no; /* Serial number */ inst_disptypesel *dtlist; /* Display Type list */ int ndtlist; /* Number of valid dtlist entries */ int icx; /* Internal calibration matrix index, 11 = Raw */ - int cbid; /* calibration base ID, 0 if not a base */ + disptech dtech; /* Display technology enum */ + int cbid; /* current calibration base ID, 0 if not a base */ + int ucbid; /* Underlying base ID if being used for matrix, 0 othewise */ int refrmode; /* Refresh mode (always 0) */ double postscale; /* Post scale factor (for Raw) */ double ccmat[3][3]; /* Colorimeter correction matrix */ diff --git a/spectro/conv.c b/spectro/conv.c index 752d483..c0137ce 100644 --- a/spectro/conv.c +++ b/spectro/conv.c @@ -137,8 +137,9 @@ static int th_read_char(void *pp) { char buf[1]; DWORD bread; - if ((stdinh = GetStdHandle(STD_INPUT_HANDLE)) == INVALID_HANDLE_VALUE) + if ((stdinh = GetStdHandle(STD_INPUT_HANDLE)) == INVALID_HANDLE_VALUE) { return 0; + } if (ReadFile(stdinh, buf, 1, &bread, NULL) && bread == 1 @@ -168,7 +169,7 @@ int poll_con_char(void) { return 0; } - Sleep(1); /* We just hope 1 msec is enough for the thread to start */ + Sleep(100); /* We just hope 1 msec is enough for the thread to start */ CancelIo(stdinh); getch_thread->del(getch_thread); return c; @@ -278,6 +279,23 @@ void msec_beep(int delay, int freq, int msec) { /* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */ +int acond_timedwait_imp(HANDLE cond, CRITICAL_SECTION *lock, int msec) { + int rv; + LeaveCriticalSection(lock); + rv = WaitForSingleObject(cond, msec); + EnterCriticalSection(lock); + + if (rv == WAIT_TIMEOUT) + return 1; + + if (rv != WAIT_OBJECT_0) + return 2; + + return 0; +} + +/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */ + #ifdef NEVER /* Not currently needed, or effective */ /* Set the current threads priority */ @@ -544,24 +562,48 @@ void msec_sleep(unsigned int msec) { #endif } -/* Provide substitute for clock_gettime() in OS X */ #if defined(__APPLE__) && !defined(CLOCK_MONOTONIC) + #include -#define CLOCK_REALTIME 0 -#define CLOCK_MONOTONIC 0 -static int clock_gettime(int clk_id, struct timespec *t){ + +unsigned int msec_time() { mach_timebase_info_data_t timebase; + static uint64_t startup = 0; + uint64_t time; + double msec; + + time = mach_absolute_time(); + if (startup == 0) + startup = time; + mach_timebase_info(&timebase); + time -= startup; + msec = ((double)time * (double)timebase.numer)/((double)timebase.denom * 1e6); + + return (unsigned int)floor(msec + 0.5); +} + +/* Return the current time in usec */ +/* since the first invokation of usec_time() */ +double usec_time() { + mach_timebase_info_data_t timebase; + static uint64_t startup = 0; uint64_t time; + double usec; + time = mach_absolute_time(); - double nseconds = ((double)time * (double)timebase.numer)/((double)timebase.denom); - double seconds = ((double)time * (double)timebase.numer)/((double)timebase.denom * 1e9); - t->tv_sec = seconds; - t->tv_nsec = nseconds; - return 0; + if (startup == 0) + startup = time; + + mach_timebase_info(&timebase); + time -= startup; + usec = ((double)time * (double)timebase.numer)/((double)timebase.denom * 1e3); + + return usec; } -#endif + +#else /* Return the current time in msec */ /* since the first invokation of msec_time() */ @@ -580,7 +622,7 @@ unsigned int msec_time() { cv.tv_sec -= startup.tv_sec; if (startup.tv_nsec > cv.tv_nsec) { cv.tv_sec--; - cv.tv_nsec += 100000000; + cv.tv_nsec += 1000000000; } cv.tv_nsec -= startup.tv_nsec; @@ -617,6 +659,29 @@ double usec_time() { return rv; } +#endif + +/* - - - - - - - - - - - - - - - - - - - - - - - - */ + +int acond_timedwait_imp(pthread_cond_t *cond, pthread_mutex_t *lock, int msec) { + struct timeval tv; + struct timespec ts; + int rv; + + // this is unduly complicated... + gettimeofday(&tv, NULL); + ts.tv_sec = tv.tv_sec + msec/1000; + ts.tv_nsec = (tv.tv_usec + (msec % 1000) * 1000) * 1000L; + if (ts.tv_nsec > 1000000000L) { + ts.tv_nsec -= 1000000000L; + ts.tv_sec++; + } + + rv = pthread_cond_timedwait(cond, lock, &ts); + + return rv; +} + /* - - - - - - - - - - - - - - - - - - - - - - - - */ #ifdef NEVER /* Not currently needed, or effective */ @@ -907,8 +972,11 @@ int create_parent_directories(char *path) { static int th_kkill_nprocess(void *pp) { kkill_nproc_ctx *ctx = (kkill_nproc_ctx *)pp; + /* set result to 0 if it ever suceeds or there was no such process */ + ctx->th->result = -1; while(ctx->stop == 0) { - kill_nprocess(ctx->pname, ctx->log); + if (kill_nprocess(ctx->pname, ctx->log) >= 0) + ctx->th->result = 0; msec_sleep(20); /* Don't hog the CPU */ } ctx->done = 1; @@ -1120,6 +1188,10 @@ sa_XYZNumber sa_D50 = { 0.9642, 1.0000, 0.8249 }; +sa_XYZNumber sa_D65 = { + 0.9505, 1.0000, 1.0890 +}; + void sa_SetUnity3x3(double mat[3][3]) { int i, j; for (j = 0; j < 3; j++) { @@ -1294,6 +1366,36 @@ double sa_LabDE(double *Lab0, double *Lab1) { return sqrt(rv); } +/* CIE XYZ to perceptual CIE 1976 L*a*b* */ +void +sa_XYZ2Lab(icmXYZNumber *w, double *out, double *in) { + double X = in[0], Y = in[1], Z = in[2]; + double x,y,z,fx,fy,fz; + + x = X/w->X; + y = Y/w->Y; + z = Z/w->Z; + + if (x > 0.008856451586) + fx = pow(x,1.0/3.0); + else + fx = 7.787036979 * x + 16.0/116.0; + + if (y > 0.008856451586) + fy = pow(y,1.0/3.0); + else + fy = 7.787036979 * y + 16.0/116.0; + + if (z > 0.008856451586) + fz = pow(z,1.0/3.0); + else + fz = 7.787036979 * z + 16.0/116.0; + + out[0] = 116.0 * fy - 16.0; + out[1] = 500.0 * (fx - fy); + out[2] = 200.0 * (fy - fz); +} + /* - - - - - - - - - - - - - - - - - - - - - - - - */ /* A sub-set of ludecomp code from numlib */ @@ -1479,4 +1581,32 @@ int sa_lu_psinvert(double **out, double **in, int m, int n) { #endif /* SALONEINSTLIB */ /* ============================================================= */ +/* Diagnostic aids */ + +// Print bytes as hex to debug log */ +void adump_bytes(a1log *log, char *pfx, unsigned char *buf, int base, int len) { + int i, j, ii; + char oline[200] = { '\000' }, *bp = oline; + for (i = j = 0; i < len; i++) { + if ((i % 16) == 0) + bp += sprintf(bp,"%s%04x:",pfx,base+i); + bp += sprintf(bp," %02x",buf[i]); + if ((i+1) >= len || ((i+1) % 16) == 0) { + for (ii = i; ((ii+1) % 16) != 0; ii++) + bp += sprintf(bp," "); + bp += sprintf(bp," "); + for (; j <= i; j++) { + if (!(buf[j] & 0x80) && isprint(buf[j])) + bp += sprintf(bp,"%c",buf[j]); + else + bp += sprintf(bp,"."); + } + bp += sprintf(bp,"\n"); + a1logd(log,0,"%s",oline); + bp = oline; + } + } +} + + diff --git a/spectro/conv.h b/spectro/conv.h index 5d63efe..7a7baca 100644 --- a/spectro/conv.h +++ b/spectro/conv.h @@ -42,62 +42,6 @@ extern "C" { #endif -/* - - - - - - - - - - - - - - - - - - -- */ -/* System compatibility #defines */ -#if defined (NT) - -#ifndef sys_stat -# define sys_stat _stat -#endif -#ifndef sys_mkdir -# define sys_mkdir _mkdir -#endif -#ifndef sys_read -# define sys_read _read -#endif -#ifndef sys_utime -# define sys_utime _utime -# define sys_utimbuf _utimbuf -#endif -#ifndef sys_access -# define sys_access _access -#endif - -#ifndef snprintf -# define snprintf _snprintf -# define vsnprintf _vsnprintf -#endif -#ifndef stricmp -# define stricmp _stricmp -#endif - -#endif /* NT */ - -#if defined (UNIX) - -#ifndef sys_stat -# define sys_stat stat -#endif -#ifndef sys_mkdir -# define sys_mkdir mkdir -#endif -#ifndef sys_read -# define sys_read read -#endif -#ifndef sys_utime -# define sys_utime utime -# define sys_utimbuf utimbuf -#endif -#ifndef sys_access -# define sys_access access -#endif - -#ifndef stricmp -# define stricmp strcasecmp -#endif - -#endif /* UNIX */ - /* - - - - - - - - - - - - - - - - - - -- */ /* System dependent convenience functions */ @@ -145,21 +89,37 @@ int set_normal_priority(); #endif /* NEVER */ /* - - - - - - - - - - - - - - - - - - -- */ -/* An Argyll mutex */ +/* An Argyll mutex and condition */ /* amutex_trylock() returns nz if it can't lock the mutex */ +/* acond_timedwait() returns nz if it times out */ #ifdef NT # define amutex CRITICAL_SECTION -# define amutex_static(lock) CRITICAL_SECTION lock = { NULL, -1 } +# define amutex_static(lock) CRITICAL_SECTION lock = {(void*)-1,-1 } # define amutex_init(lock) InitializeCriticalSection(&(lock)) # define amutex_del(lock) DeleteCriticalSection(&(lock)) # define amutex_lock(lock) EnterCriticalSection(&(lock)) # define amutex_trylock(lock) (!TryEnterCriticalSection(&(lock))) # define amutex_unlock(lock) LeaveCriticalSection(&(lock)) + +# define acond HANDLE +# define acond_static(cond) pthread_cond_t (cond) = PTHREAD_COND_INITIALIZER +# define acond_init(cond) (cond = CreateEvent(NULL, 0, 0, NULL)) +# define acond_del(cond) CloseHandle(cond) +# define acond_wait(cond, lock) (LeaveCriticalSection(&(lock)), \ + WaitForSingleObject(cond, INFINITE), \ + EnterCriticalSection(&(lock))) +# define acond_signal(cond) SetEvent(cond) +# define acond_timedwait(cond, lock, msec) \ + acond_timedwait_imp(cond, &(lock), msec) + +int acond_timedwait_imp(HANDLE cond, CRITICAL_SECTION *lock, int msec); + #endif #ifdef UNIX + # define amutex pthread_mutex_t # define amutex_static(lock) pthread_mutex_t (lock) = PTHREAD_MUTEX_INITIALIZER # define amutex_init(lock) pthread_mutex_init(&(lock), NULL) @@ -167,8 +127,21 @@ int set_normal_priority(); # define amutex_lock(lock) pthread_mutex_lock(&(lock)) # define amutex_trylock(lock) pthread_mutex_trylock(&(lock)) # define amutex_unlock(lock) pthread_mutex_unlock(&(lock)) + +# define acond pthread_cond_t +# define acond_static(cond) pthread_cond_t (cond) = PTHREAD_COND_INITIALIZER +# define acond_init(cond) pthread_cond_init(&(cond), NULL) +# define acond_del(cond) pthread_cond_destroy(&(cond)) +# define acond_wait(cond, lock) pthread_cond_wait(&(cond), &(lock)) +# define acond_signal(cond) pthread_cond_signal(&(cond)) +# define acond_timedwait(cond, lock, msec) \ + acond_timedwait_imp(&(cond), &(lock), msec) + +int acond_timedwait_imp(pthread_cond_t *cond, pthread_mutex_t *lock, int msec); + #endif + /* - - - - - - - - - - - - - - - - - - -- */ /* An Argyll thread. */ @@ -198,7 +171,7 @@ struct _athread { }; typedef struct _athread athread; -/* Create and start a thread */ +/* Create and start a thread. Return NULL on error. */ /* Thread function should only return on completion or error. */ /* It should return 0 on completion or exit, nz on error. */ athread *new_athread(int (*function)(void *context), void *context); @@ -256,6 +229,7 @@ typedef enum { } sa_ColorSpaceSignature; extern sa_XYZNumber sa_D50; +extern sa_XYZNumber sa_D65; void sa_SetUnity3x3(double mat[3][3]); void sa_Cpy3x3(double out[3][3], double mat[3][3]); void sa_MulBy3x3(double out[3], double mat[3][3], double in[3]); @@ -271,6 +245,7 @@ double sa_LabDE(double *in0, double *in1); #define icSigXYZData sa_SigXYZData #define icSigLabData sa_SigLabData #define icmD50 sa_D50 +#define icmD65 sa_D65 #define icmSetUnity3x3 sa_SetUnity3x3 #define icmCpy3x3 sa_Cpy3x3 #define icmMulBy3x3 sa_MulBy3x3 @@ -280,6 +255,7 @@ double sa_LabDE(double *in0, double *in1); #define icmScale3 sa_Scale3 #define icmClamp3 sa_Clamp3 #define icmLabDE sa_LabDE +#define icmXYZ2Lab sa_XYZ2Lab /* A subset of numlib */ @@ -290,7 +266,10 @@ int sa_lu_psinvert(double **out, double **in, int m, int n); #endif /* SALONEINSTLIB */ /* - - - - - - - - - - - - - - - - - - -- */ +/* Diagnostic aids */ +// Print bytes as hex to debug log */ +void adump_bytes(a1log *log, char *pfx, unsigned char *buf, int base, int len); /* - - - - - - - - - - - - - - - - - - -- */ diff --git a/spectro/dispcal.c b/spectro/dispcal.c index b8f3ebe..0a0bc16 100644 --- a/spectro/dispcal.c +++ b/spectro/dispcal.c @@ -20,6 +20,13 @@ /* TTBD + Should shift to using xicc code for BT.1886 and target response + curve, for consistency with collink etc. + + Add support for black recalibration using i1pro or munki. + Setable timeout ? Need to allow placing instrument back + on screen. Need this to properly handle ss anyway ? + Calibrating the black point of a true power response device is very slow to converge - the jacobian is always underestimating the actual delta RGB needed because the @@ -82,11 +89,11 @@ in "Figure out the black point target" - Yes they are !! Verify probably shouldn't work this way. - Add DICOM support: + Add DICOM Part 14 GSDF support: + * Add absolute DICOM function target to dispcal. * Add 20% grey background full screen option + 10% patch recommendation - * Add "include Glare" option for contact instruments to dispsup. - * Add absolute DICOM function target. + * Add "include Glare" option for contact instruments to dispsup.c * Add DICOM mode black point hue handling (? what policy ?) * Add DICOM stats report (JND dE + mean + SD) to verify ?? */ @@ -111,14 +118,16 @@ #include "xicc.h" #include "xspect.h" #include "xcolorants.h" -#include "ccmx.h" -#include "ccss.h" #include "cgats.h" #include "insttypes.h" #include "conv.h" #include "icoms.h" #include "inst.h" +#include "ccmx.h" +#include "ccss.h" #include "dispwin.h" +#include "ui.h" +#include "ccast.h" #include "dispsup.h" #include "rspl.h" #include "moncurve.h" @@ -127,7 +136,9 @@ #include "icc.h" #include "sort.h" #include "instappsup.h" -#include "spyd2setup.h" /* Enable Spyder 2 access */ +#ifdef ENABLE_USB +# include "spyd2.h" +#endif #undef DEBUG #undef DEBUG_OFFSET /* Keep test window out of the way */ @@ -208,6 +219,7 @@ typedef struct { double gooff; /* Target output offset (normalised to Y max of 1.0) */ int nat; /* Flag - nz if native white target */ double nbrate; /* Neutral blend weight (power) */ + int bkhack; /* Flag - nz if black is hacked to be device zero */ /* Viewing conditions adjustment */ int vc; /* Flag, nz to enable viewing conditions adjustment */ @@ -1238,7 +1250,7 @@ static double comp_ct( if ((ct = icx_XYZ2ill_ct(ct_xyz, plank != 0 ? icxIT_Ptemp : icxIT_Dtemp, obType, NULL, xyz, NULL, dovct)) < 0) - error ("Got bad color temperature conversion\n"); + error("Got bad color temperature conversion\n"); if (de != NULL) { icmAry2XYZ(wN, ct_xyz); @@ -1271,6 +1283,193 @@ extern ICCLIB_API double bwXYZLabDE(icmXYZNumber *w, double *targ, double *act, } /* =================================================================== */ +#ifdef MEAS_RES + +#define NVAL 240 /* Nominal measurement value */ + +/* return the estimated RAMDAC precision. Return 0 if not certain */ +static int comp_ramdac_prec( + int base, /* Base quantization to test for */ + col *ttt /* Measurement values */ +) { + int i, j; + double min, max; + double val[17]; + double meas[17]; + + double scale; + double targ[17]; + double score[5]; + double bits[5]; + + double bcor, bcor2; + int bbits = 0, rbits; + + int verb = 0; + + /* Extract the measurements */ + for (i = 0; i < 17; i++) { + val[i] = (double)i; + meas[i] = ttt[i].XYZ[1]; + } +#ifdef DEBUG + fprintf(dbgo,"raw measurements:\n"); + do_plot(val, meas, NULL, NULL, 17); +#endif + + /* Determine min & max, and normalize the values */ + min = 1e9, max = -1e9; + for (i = 0; i < 17; i++) { + if (meas[i] < min) + min = meas[i]; + if (meas[i] > max) + max = meas[i]; + } + for (i = 0; i < 17; i++) { + meas[i] = (meas[i] - min)/(max - min); +//printf("meas[%d] = %f\n",i,meas[i]); + } + + /* Create score for each hypothesis */ + scale = 1.0; + for (j = 0; j < 5; j++) { + int k; + int step = 1 << (4 - j); + double v = 0.0; + double merr; + + bits[j] = 8.0 + j; + + /* Create the target response */ + for (i = 0; i < 17;) { + for (k = 0; k < step && (i+k) < 17; k++) { + targ[i + k] = v; +//printf("j %d: targ[%d] = %f\n",j,i+k,v); + } + v += step/16.0; + i += k; + } + + /* Tweak it for typical display non-linearity */ + min = 1e9, max = -1e9; + for (i = 0; i < 17; i++) { + targ[i] = pow((NVAL + targ[i]/16.0)/255.0, 2.2); + if (targ[i] < min) + min = targ[i]; + if (targ[i] > max) + max = targ[i]; + } + for (i = 0; i < 17; i++) + targ[i] = (targ[i] - min)/(max - min); + + /* Try and make fit a little better */ + /* with a crude optimisation */ + for (k = 0; k < 50; k++) { + + merr = 0.0; + for (i = 0; i < 17; i++) + merr += targ[i] - meas[i]; + merr /= 17.0; + + for (i = 0; i < 17; i++) { + targ[i] *= (1.0 + 0.5 * merr); + targ[i] -= 0.5 * merr; +// targ[i] -= merr; + } + } + + score[j] = 0.0; + for (i = 0; i < 17; i++) { + double tt = targ[i] - meas[i]; + score[j] += tt * tt; + } + score[j] *= scale; + scale *= 1.1; + +#ifdef DEBUG + printf("%d bits score %f\n",8+j,score[j]); + do_plot(val, meas, targ, NULL, 17); +#endif + } + + /* Pick the best score */ + bcor = bcor2 = 1e8; + bbits = 0; + + for (j = 0; j < 5; j++) { + if (score[j] < bcor) { + bcor2 = bcor; + bcor = score[j]; + bbits = 8+j; + } else if (score[j] < bcor2) + bcor2 = score[j]; + } + + rbits = bbits; + + /* Don't pick anything if it's not reasonably certain */ + if (bcor2/bcor < 1.3 + || (bcor2/bcor < 2.1 && bcor > 0.15) + ) rbits = 0; + +#ifdef DEBUG + printf("Win score %f by cor %f, ratio %f\n",bcor, bcor2 - bcor, bcor2/bcor); + printf("Best %d, returning %d bits\n",bbits,rbits); + do_plot10(bits, score, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 5, 1); +#endif + + return rbits; +} + +static int meas_ramdac_prec(int base, disprd *dr) { + col ttt[17]; + int rv, n, rbits; + + /* setup the measurements */ + for (n = 0; n < 17; n++) { + int ii; + ii = (NVAL * 256); + ii += n * 16; + ttt[n].r = ttt[n].g = ttt[n].b = ii/(double)(65535); + } + + if ((rv = dr->read(dr, ttt, 17, 1, 17, 1, 0, instNoClamp)) != 0) { + warning("display read failed with '%s'\n",disprd_err(rv)); + return 0; + } + + rbits = comp_ramdac_prec(base, ttt); + + /* If it failed, try the average to two sets of measurements */ + if (rbits == 0) { + col t2[17]; + for (n = 0; n < 17; n++) + t2[n] = ttt[n]; + + if ((rv = dr->read(dr, t2, 17, 1, 17, 1, 0, instNoClamp)) != 0) { + warning("display read failed with '%s'\n",disprd_err(rv)); + return 0; + } + + for (n = 0; n < 17; n++) + ttt[n].XYZ[1] += t2[n].XYZ[1]; + + rbits = comp_ramdac_prec(base, ttt); + + /* As a last resort, try just the second measurement */ + if (rbits == 0) + rbits = comp_ramdac_prec(base, t2); + } + + return rbits; +} + +#undef NVAL + +#endif /* MEAS_RES */ + +/* =================================================================== */ + /* Default gamma */ double g_def_gamma = 2.4; @@ -1279,12 +1478,14 @@ double g_def_gamma = 2.4; Flags used: ABCDEFGHIJKLMNOPQRSTUVWXYZ - upper .......... ....... . ... + upper .......... ....... . .... lower ....... . ...... .... .. */ -void usage(char *diag, ...) { +/* Flag = 0x0000 = default */ +/* Flag & 0x0001 = list ChromCast's */ +void usage(int flag, char *diag, ...) { int i; disppath **dp; icompaths *icmps; @@ -1292,8 +1493,6 @@ void usage(char *diag, ...) { fprintf(stderr,"Calibrate a Display, Version %s\n",ARGYLL_VERSION_STR); fprintf(stderr,"Author: Graeme W. Gill, licensed under the AGPL Version 3\n"); - if (setup_spyd2() == 2) - fprintf(stderr,"WARNING: This file contains a proprietary firmware image, and may not be freely distributed !\n"); if (diag != NULL) { va_list args; fprintf(stderr,"Diagnostic: "); @@ -1324,6 +1523,22 @@ void usage(char *diag, ...) { } free_disppaths(dp); fprintf(stderr," -dweb[:port] Display via a web server at port (default 8080)\n"); + fprintf(stderr," -dcc[:n] Display via n'th ChromeCast (default 1, ? for list)\n"); + if (flag & 0x001) { + ccast_id **ids; + if ((ids = get_ccids()) == NULL) { + fprintf(stderr," ** Error discovering ChromCasts **\n"); + } else { + if (ids[0] == NULL) + fprintf(stderr," ** No ChromCasts found **\n"); + else { + int i; + for (i = 0; ids[i] != NULL; i++) + fprintf(stderr," %d = '%s'\n",i+1,ids[i]->name); + free_ccids(ids); + } + } + } #ifdef NT fprintf(stderr," -dmadvr Display via MadVR Video Renderer\n"); #endif @@ -1336,7 +1551,8 @@ void usage(char *diag, ...) { for (i = 0; ; i++) { if (paths[i] == NULL) break; - if (paths[i]->itype == instSpyder2 && setup_spyd2() == 0) + if ((paths[i]->itype == instSpyder1 && setup_spyd2(0) == 0) + || (paths[i]->itype == instSpyder2 && setup_spyd2(1) == 0)) fprintf(stderr," %d = '%s' !! Disabled - no firmware !!\n",i+1,paths[i]->name); else fprintf(stderr," %d = '%s'\n",i+1,paths[i]->name); @@ -1372,6 +1588,7 @@ void usage(char *diag, ...) { fprintf(stderr," -a ambient Use viewing condition adjustment for ambient in Lux\n"); fprintf(stderr," -k factor Amount to correct black hue, 0 = none, 1 = full, Default = Automatic\n"); fprintf(stderr," -A rate Rate of blending from neutral to black point. Default %.1f\n",NEUTRAL_BLEND_RATE); + fprintf(stderr," -b Use forced black point hack\n"); fprintf(stderr," -B blkbright Set the target black brightness in cd/m^2\n"); fprintf(stderr," -e [n] Run n verify passes on final curves\n"); fprintf(stderr," -z Run only verify pass on installed calibration curves\n"); @@ -1452,6 +1669,7 @@ int main(int argc, char *argv[]) { double egamma = 0.0; /* Effective Gamma target, NZ if set */ double ambient = 0.0; /* NZ if viewing cond. adjustment to be used (Lux) */ double bkcorrect = -1.0; /* Level of black point correction, < 0 = auto */ + int bkhack = 0; double bkbright = 0.0; /* Target black brightness ( 0.0 == min) */ int quality = -99; /* Quality level, -2 = v, -1 = l, 0 = m, 1 = h, 2 = u */ int isteps = 22; /* Initial measurement steps/3 (medium) */ @@ -1464,6 +1682,9 @@ int main(int argc, char *argv[]) { int verify = 0; /* Do a verify after last refinement, 2 = do only verify. */ int nver = 0; /* Number of verify passes after refinement */ int webdisp = 0; /* NZ for web display, == port number */ + int ccdisp = 0; /* NZ for ChromeCast, == list index */ + ccast_id **ccids = NULL; + ccast_id *ccid = NULL; #ifdef NT int madvrdisp = 0; /* NZ for madvr display */ #endif @@ -1496,25 +1717,31 @@ int main(int argc, char *argv[]) { #if defined(__APPLE__) { - SInt32 MacVers; + SInt32 MacMajVers, MacMinVers, MacBFVers; /* Hmm. Maybe this should actually be 1.72 ?? */ g_def_gamma = 1.8; - /* OS X 10.6 uses a nominal gamma of 2.2 */ - if (Gestalt(gestaltSystemVersion, &MacVers) == noErr) { - if (MacVers >= 0x1060) { +#if __MAC_OS_X_VERSION_MAX_ALLOWED >= 1040 + /* gestaltSystemVersionMajor etc. isn't supported on older systems, */ + /* although "Gestalt(gestaltSystemVersion, &MacVers)" is, but this */ + /* causes warning messages in 10.10. */ + + /* OS X 10.6+ uses a nominal gamma of 2.2 */ + if (Gestalt(gestaltSystemVersionMajor, &MacMajVers) == noErr + && Gestalt(gestaltSystemVersionMinor, &MacMinVers) == noErr + && Gestalt(gestaltSystemVersionBugFix, &MacBFVers) == noErr) { + if (MacMajVers >= 10 && MacMinVers >= 6) { g_def_gamma = 2.4; } } +#endif /* >= 1040 */ } #else g_def_gamma = 2.4; /* Typical CRT gamma */ #endif gamma = g_def_gamma; - setup_spyd2(); /* Load firware if available */ - x.gammat = gt_power ; /* Default gamma type */ x.egamma = 0.0; /* Default effective gamma none */ x.oofff = 1.0; /* Default is all output ofset */ @@ -1533,7 +1760,7 @@ int main(int argc, char *argv[]) { #endif if (argc <= 1) - usage("Too few arguments"); + usage(0,"Too few arguments"); /* Process the arguments */ mfa = 1; /* Minimum final arguments */ @@ -1556,7 +1783,7 @@ int main(int argc, char *argv[]) { } if (argv[fa][1] == '?' || argv[fa][1] == '-') { - usage("Usage requested"); + usage(0,"Usage requested"); } else if (argv[fa][1] == 'v') { verb = 1; @@ -1574,7 +1801,19 @@ int main(int argc, char *argv[]) { if (na[3] == ':') { webdisp = atoi(na+4); if (webdisp == 0 || webdisp > 65535) - usage("Web port number must be in range 1..65535"); + usage(0,"Web port number must be in range 1..65535"); + } + fa = nfa; + } else if (strncmp(na,"cc",2) == 0 + || strncmp(na,"CC",2) == 0) { + ccdisp = 1; + if (na[2] == ':') { + if (na[3] < '0' || na[3] > '9') + usage(0x0001,"Available ChromeCasts"); + + ccdisp = atoi(na+3); + if (ccdisp <= 0) + usage(0,"ChromCast number must be in range 1..N"); } fa = nfa; #ifdef NT @@ -1588,10 +1827,10 @@ int main(int argc, char *argv[]) { int ix, iv; if (strcmp(&argv[fa][2], "isplay") == 0 || strcmp(&argv[fa][2], "ISPLAY") == 0) { - if (++fa >= argc || argv[fa][0] == '-') usage("Parameter expected following -display"); + if (++fa >= argc || argv[fa][0] == '-') usage(0,"Parameter expected following -display"); setenv("DISPLAY", argv[fa], 1); } else { - if (na == NULL) usage("Parameter expected following -d"); + if (na == NULL) usage(0,"Parameter expected following -d"); fa = nfa; if (strcmp(na,"fake") == 0) { fake = 1; @@ -1603,14 +1842,14 @@ int main(int argc, char *argv[]) { if (disp != NULL) free_a_disppath(disp); if ((disp = get_a_display(ix-1)) == NULL) - usage("-d parameter %d out of range",ix); + usage(0,"-d parameter %d out of range",ix); if (iv > 0) disp->rscreen = iv-1; } } #else int ix; - if (na == NULL) usage("Parameter expected following -d"); + if (na == NULL) usage(0,"Parameter expected following -d"); fa = nfa; if (strcmp(na,"fake") == 0) { fake = 1; @@ -1619,7 +1858,7 @@ int main(int argc, char *argv[]) { if (disp != NULL) free_a_disppath(disp); if ((disp = get_a_display(ix-1)) == NULL) - usage("-d parameter %d out of range",ix); + usage(0,"-d parameter %d out of range",ix); } #endif } @@ -1646,13 +1885,13 @@ int main(int argc, char *argv[]) { } else if (argv[fa][1] == 'X') { int ix; fa = nfa; - if (na == NULL) usage("Parameter expected following -X"); + if (na == NULL) usage(0,"Parameter expected following -X"); strncpy(ccxxname,na,MAXNAMEL-1); ccxxname[MAXNAMEL-1] = '\000'; /* Drift Compensation */ } else if (argv[fa][1] == 'I') { fa = nfa; - if (na == NULL || na[0] == '\000') usage("Parameter expected after -I"); + if (na == NULL || na[0] == '\000') usage(0,"Parameter expected after -I"); for (i=0; ; i++) { if (na[i] == '\000') break; @@ -1661,13 +1900,13 @@ int main(int argc, char *argv[]) { else if (na[i] == 'w' || na[i] == 'W') wdrift = 1; else - usage("-I parameter '%c' not recognised",na[i]); + usage(0,"-I parameter '%c' not recognised",na[i]); } /* Spectral Observer type */ } else if (argv[fa][1] == 'Q') { fa = nfa; - if (na == NULL) usage("Parameter expecte after -Q"); + if (na == NULL) usage(0,"Parameter expecte after -Q"); if (strcmp(na, "1931_2") == 0) { /* Classic 2 degree */ obType = icxOT_CIE_1931_2; } else if (strcmp(na, "1964_10") == 0) { /* Classic 10 degree */ @@ -1681,24 +1920,24 @@ int main(int argc, char *argv[]) { } else if (strcmp(na, "shaw") == 0) { /* Shaw and Fairchilds 1997 2 degree */ obType = icxOT_Shaw_Fairchild_2; } else - usage("-Q parameter '%s' not recognised",na); + usage(0,"-Q parameter '%s' not recognised",na); /* Change color callout */ } else if (argv[fa][1] == 'C') { fa = nfa; - if (na == NULL) usage("Parameter expected after -C"); + if (na == NULL) usage(0,"Parameter expected after -C"); ccallout = na; /* Measure color callout */ } else if (argv[fa][1] == 'M') { fa = nfa; - if (na == NULL) usage("Parameter expected after -M"); + if (na == NULL) usage(0,"Parameter expected after -M"); mcallout = na; /* Serial port flow control */ } else if (argv[fa][1] == 'W') { fa = nfa; - if (na == NULL) usage("Paramater expected following -W"); + if (na == NULL) usage(0,"Paramater expected following -W"); if (na[0] == 'n' || na[0] == 'N') fc = fc_none; else if (na[0] == 'h' || na[0] == 'H') @@ -1706,7 +1945,7 @@ int main(int argc, char *argv[]) { else if (na[0] == 'x' || na[0] == 'X') fc = fc_XonXOff; else - usage("-W parameter '%c' not recognised",na[0]); + usage(0,"-W parameter '%c' not recognised",na[0]); /* Debug coms */ } else if (argv[fa][1] == 'D') { @@ -1721,21 +1960,21 @@ int main(int argc, char *argv[]) { /* Black point correction amount */ } else if (argv[fa][1] == 'k') { fa = nfa; - if (na == NULL) usage("Paramater expected following -k"); + if (na == NULL) usage(0,"Paramater expected following -k"); bkcorrect = atof(na); - if (bkcorrect < 0.0 || bkcorrect > 1.0) usage("-k parameter must be between 0.0 and 1.0"); + if (bkcorrect < 0.0 || bkcorrect > 1.0) usage(0,"-k parameter must be between 0.0 and 1.0"); /* Neutral blend rate (power) */ } else if (argv[fa][1] == 'A') { fa = nfa; - if (na == NULL) usage("Paramater expected following -A"); + if (na == NULL) usage(0,"Paramater expected following -A"); x.nbrate = atof(na); - if (x.nbrate < 0.05 || x.nbrate > 20.0) usage("-A parameter must be between 0.05 and 20.0"); + if (x.nbrate < 0.05 || x.nbrate > 20.0) usage(0,"-A parameter must be between 0.05 and 20.0"); /* Black brightness */ } else if (argv[fa][1] == 'B') { fa = nfa; - if (na == NULL) usage("Parameter expected after -B"); + if (na == NULL) usage(0,"Parameter expected after -B"); bkbright = atof(na); - if (bkbright <= 0.0 || bkbright > 100000.0) usage("-B parameter %f out of range",bkbright); + if (bkbright <= 0.0 || bkbright > 100000.0) usage(0,"-B parameter %f out of range",bkbright); /* Number of verify passes */ } else if (argv[fa][1] == 'e') { @@ -1757,9 +1996,9 @@ int main(int argc, char *argv[]) { /* COM port */ } else if (argv[fa][1] == 'c') { fa = nfa; - if (na == NULL) usage("Paramater expected following -c"); + if (na == NULL) usage(0,"Paramater expected following -c"); comport = atoi(na); - if (comport < 1 || comport > 50) usage("-c parameter %d out of range",comport); + if (comport < 1 || comport > 50) usage(0,"-c parameter %d out of range",comport); /* Telephoto */ } else if (argv[fa][1] == 'p') { @@ -1787,7 +2026,7 @@ int main(int argc, char *argv[]) { /* Fast Profile Description */ } else if (argv[fa][1] == 'O') { fa = nfa; - if (na == NULL) usage("Expect argument to profile description flag -O"); + if (na == NULL) usage(0,"Expect argument to profile description flag -O"); profDesc = na; /* Update calibration and (optionally) profile */ @@ -1798,7 +2037,7 @@ int main(int argc, char *argv[]) { /* Speed/Quality */ } else if (argv[fa][1] == 'q') { fa = nfa; - if (na == NULL) usage("Parameter expected following -q"); + if (na == NULL) usage(0,"Parameter expected following -q"); switch (na[0]) { case 'L': /* Test value */ quality = -3; @@ -1824,13 +2063,13 @@ int main(int argc, char *argv[]) { quality = 2; break; default: - usage("-q parameter '%c' not recognised",na[0]); + usage(0,"-q parameter '%c' not recognised",na[0]); } /* Display type */ } else if (argv[fa][1] == 'y') { fa = nfa; - if (na == NULL) usage("Parameter expected after -y"); + if (na == NULL) usage(0,"Parameter expected after -y"); dtype = na[0]; /* Daylight color temperature */ @@ -1842,31 +2081,35 @@ int main(int argc, char *argv[]) { if (na != NULL) { fa = nfa; temp = atof(na); - if (temp < 1000.0 || temp > 15000.0) usage("-%c parameter %f out of range",argv[fa][1], temp); + if (temp < 1000.0 || temp > 15000.0) usage(0,"-%c parameter %f out of range",argv[fa][1], temp); } /* White point as x, y */ } else if (argv[fa][1] == 'w') { fa = nfa; - if (na == NULL) usage("Parameter expected after -w"); + if (na == NULL) usage(0,"Parameter expected after -w"); if (sscanf(na, " %lf,%lf ", &wpx, &wpy) != 2) - usage("-w parameter '%s' not recognised",na); + usage(0,"-w parameter '%s' not recognised",na); /* Show CXT rather than VXT when adjusting native white point */ } else if (argv[fa][1] == 'L') { dovct = 0; - /* White brightness */ + /* Black point hack/White brightness */ } else if (argv[fa][1] == 'b') { - fa = nfa; - if (na == NULL) usage("Parameter expected after -b"); - tbright = atof(na); - if (tbright <= 0.0 || tbright > 100000.0) usage("-b parameter %f out of range",tbright); + if (na == NULL) { + bkhack = 1; + } else { + fa = nfa; + /* if (na == NULL) usage(0,"Parameter expected after -b"); */ + tbright = atof(na); + if (tbright <= 0.0 || tbright > 100000.0) usage(0,"-b parameter %f out of range",tbright); + } /* Target transfer curve */ } else if (argv[fa][1] == 'g') { fa = nfa; - if (na == NULL) usage("Parameter expected after -g"); + if (na == NULL) usage(0,"Parameter expected after -g"); if ((na[0] == 'l' || na[0] == 'L') && na[1] == '\000') x.gammat = gt_Lab; else if ((na[0] == 's' || na[0] == 'S') && na[1] == '\000') @@ -1877,16 +2120,16 @@ int main(int argc, char *argv[]) { x.gammat = gt_SMPTE240M; else { gamma = atof(na); - if (gamma <= 0.0 || gamma > 10.0) usage("-g parameter %f out of range",gamma); + if (gamma <= 0.0 || gamma > 10.0) usage(0,"-g parameter %f out of range",gamma); x.gammat = gt_power; } /* Effective gamma power */ } else if (argv[fa][1] == 'G') { fa = nfa; - if (na == NULL) usage("Parameter expected after -G"); + if (na == NULL) usage(0,"Parameter expected after -G"); egamma = atof(na); - if (egamma <= 0.0 || egamma > 10.0) usage("-G parameter %f out of range",egamma); + if (egamma <= 0.0 || egamma > 10.0) usage(0,"-G parameter %f out of range",egamma); x.gammat = gt_power; /* Degree of output offset */ @@ -1897,33 +2140,33 @@ int main(int argc, char *argv[]) { } else { x.oofff = atof(na); if (x.oofff < 0.0 || x.oofff > 1.0) - usage("-f parameter %f out of range",x.oofff); + usage(0,"-f parameter %f out of range",x.oofff); } /* Ambient light level */ } else if (argv[fa][1] == 'a') { fa = nfa; - if (na == NULL) usage("Parameter expected after -a"); + if (na == NULL) usage(0,"Parameter expected after -a"); ambient = atof(na); if (ambient < 0.0) - usage("-a parameter %f out of range",ambient); + usage(0,"-a parameter %f out of range",ambient); /* Test patch offset and size */ } else if (argv[fa][1] == 'P') { fa = nfa; - if (na == NULL) usage("Parameter expected after -P"); + if (na == NULL) usage(0,"Parameter expected after -P"); if (sscanf(na, " %lf,%lf,%lf,%lf ", &ho, &vo, &hpatscale, &vpatscale) == 4) { ; } else if (sscanf(na, " %lf,%lf,%lf ", &ho, &vo, &hpatscale) == 3) { vpatscale = hpatscale; } else { - usage("-P parameter '%s' not recognised",na); + usage(0,"-P parameter '%s' not recognised",na); } if (ho < 0.0 || ho > 1.0 || vo < 0.0 || vo > 1.0 || hpatscale <= 0.0 || hpatscale > 50.0 || vpatscale <= 0.0 || vpatscale > 50.0) - usage("-P parameters %f %f %f %f out of range",ho,vo,hpatscale,vpatscale); + usage(0,"-P parameters %f %f %f %f out of range",ho,vo,hpatscale,vpatscale); ho = 2.0 * ho - 1.0; vo = 2.0 * vo - 1.0; @@ -1934,35 +2177,50 @@ int main(int argc, char *argv[]) { /* Extra flags */ } else if (argv[fa][1] == 'Y') { if (na == NULL) - usage("Flag '-Y' expects extra flag"); + usage(0,"Flag '-Y' expects extra flag"); if (na[0] == 'R') { if (na[1] != ':') - usage("-Y R:rate syntax incorrect"); + usage(0,"-Y R:rate syntax incorrect"); refrate = atof(na+2); if (refrate < 5.0 || refrate > 150.0) - usage("-Y R:rate %f Hz not in valid range",refrate); + usage(0,"-Y R:rate %f Hz not in valid range",refrate); } else if (na[0] == 'A') { nadaptive = 1; } else if (na[0] == 'p') { noplace = 1; } else { - usage("Flag '-Y %c' not recognised",na[0]); + usage(0,"Flag '-Y %c' not recognised",na[0]); } fa = nfa; } else - usage("Flag '-%c' not recognised",argv[fa][1]); + usage(0,"Flag '-%c' not recognised",argv[fa][1]); } else break; } + if (bkhack && bkbright > 0.0) { + error("Can't use -b black point hack and set target black brightness"); + } + + if (bkhack && bkcorrect != 0.0) { + if (bkcorrect > 0.0) + warning("Due to -b flag, -k factor will be set to 0.0"); + bkcorrect = 0.0; + } + /* No explicit display has been set */ if ( #ifndef SHOW_WINDOW_ONFAKE - !fake && + !fake #endif - disp == NULL) { +#ifdef NT + && madvrdisp == 0 +#endif + && webdisp == 0 + && ccdisp == 0 + && disp == NULL) { int ix = 0; #if defined(UNIX_X11) char *dn, *pp; @@ -2019,9 +2277,22 @@ int main(int argc, char *argv[]) { if ((ipath = icmps->get_path(icmps, comport)) == NULL) error("No instrument at port %d",comport); + /* If we've requested ChromeCast, look it up */ + if (ccdisp) { + if ((ccids = get_ccids()) == NULL) + error("discovering ChromCasts failed"); + if (ccids[0] == NULL) + error("There are no ChromCasts to use\n"); + for (i = 0; ccids[i] != NULL; i++) + ; + if (ccdisp < 1 || ccdisp > i) + error("Chosen ChromCasts (%d) is outside list (1..%d)\n",ccdisp,i); + ccid = ccids[ccdisp-1]; + } + if (docalib) { - if ((rv = disprd_calibration(ipath, fc, dtype, 0, tele, nadaptive, nocal, disp, - webdisp, + if ((rv = disprd_calibration(ipath, fc, dtype, -1, 0, tele, nadaptive, nocal, disp, + webdisp, ccid, #ifdef NT madvrdisp, #endif @@ -2034,7 +2305,7 @@ int main(int argc, char *argv[]) { if (verify != 2 && doreport == 0) { /* Get the file name argument */ - if (fa >= argc || argv[fa][0] == '-') usage("Output filname parameter not found"); + if (fa >= argc || argv[fa][0] == '-') usage(0,"Output filname parameter not found"); strncpy(outname,argv[fa],MAXNAMEL-4); outname[MAXNAMEL-4] = '\000'; strcat(outname,".cal"); if (iccoutname[0] == '\000') { @@ -2061,14 +2332,16 @@ int main(int argc, char *argv[]) { native = 0; /* But measure current calibrated & CM response for verify or report calibrated */ /* Get ready to do some readings */ - if ((dr = new_disprd(&errc, ipath, fc, dtype, 0, tele, nadaptive, nocal, noplace, + if ((dr = new_disprd(&errc, ipath, fc, dtype, -1, 0, tele, nadaptive, nocal, noplace, highres, refrate, native, &noramdac, &nocm, NULL, 0, - disp, out_tvenc, blackbg, override, webdisp, + disp, out_tvenc, blackbg, override, webdisp, ccid, #ifdef NT madvrdisp, #endif ccallout, mcallout, 100.0 * hpatscale, 100.0 * vpatscale, ho, vo, + ccs != NULL ? ccs->dtech : cmx != NULL ? cmx->dtech : disptech_unknown, + cmx != NULL ? cmx->cc_cbid : 0, cmx != NULL ? cmx->matrix : NULL, ccs != NULL ? ccs->samples : NULL, ccs != NULL ? ccs->no_samp : 0, spec, obType, NULL, bdrift, wdrift, @@ -2136,6 +2409,7 @@ int main(int argc, char *argv[]) { cgamma = pop_gamma(tcols[0].XYZ[1], tcols[1].XYZ[1], tcols[2].XYZ[1]); #ifdef MEAS_RES +#ifdef NEVER // Use new code /* See if we can detect what sort of precision the LUT entries */ /* have. Our ability to detect this may be limited by the instrument */ /* (ie. Huey and Spyder 2) */ @@ -2175,7 +2449,7 @@ int main(int argc, char *argv[]) { if ((rv = dr->read(dr, ttt, res_samps, 1, res_samps, 1, 0, instNoClamp)) != 0) { dr->del(dr); error("display read failed with '%s'\n",disprd_err(rv)); - } + } /* Average the readings for each test value */ a0 = a1 = a2 = 0.0; for (n = 0; n < res_samps; n++) { @@ -2266,6 +2540,15 @@ int main(int argc, char *argv[]) { } } } +# else /* ! NEVER */ + /* See if we can deternine what sort of precision the LUT entries */ + /* have. Our ability to detect this may be limited by the instrument */ + /* (ie. Huey and Spyder 2) */ + /* We assume that we need to just detect 8 to 12 bits */ + if (doreport == 1) { + sigbits = meas_ramdac_prec(8, dr); + } +#endif /* NEVER */ #endif /* MEAS_RES */ if (doreport == 2) @@ -2285,9 +2568,9 @@ int main(int argc, char *argv[]) { #ifdef MEAS_RES if (doreport == 1) { if (sigbits == 0) { - warning("Unable to determine LUT entry bit depth - problems ?"); + warning("Unable to determine Video LUT entry bit depth"); } else { - printf("Effective LUT entry depth seems to be %d bits\n",sigbits); + printf("Effective Video LUT entry depth seems to be %d bits\n",sigbits); } } #endif /* MEAS_RES */ @@ -2356,11 +2639,11 @@ int main(int argc, char *argv[]) { if ((fi = icg->find_kword(icg, 0, "TARGET_WHITE_XYZ")) < 0) { dr->del(dr); - error ("Can't update '%s' - can't find field 'TARGET_WHITE_XYZ'",outname); + error("Can't update '%s' - can't find field 'TARGET_WHITE_XYZ'",outname); } if (sscanf(icg->t[0].kdata[fi], "%lf %lf %lf", &x.twh[0], &x.twh[1], &x.twh[2]) != 3) { dr->del(dr); - error ("Can't update '%s' - reading field 'TARGET_WHITE_XYZ' failed",outname); + error("Can't update '%s' - reading field 'TARGET_WHITE_XYZ' failed",outname); } x.nwh[0] = x.twh[0] / x.twh[1]; x.nwh[1] = x.twh[1] / x.twh[1]; @@ -2379,7 +2662,7 @@ int main(int argc, char *argv[]) { if ((fi = icg->find_kword(icg, 0, "TARGET_GAMMA")) < 0) { dr->del(dr); - error ("Can't update '%s' - can't find field 'TARGET_GAMMA'",outname); + error("Can't update '%s' - can't find field 'TARGET_GAMMA'",outname); } if (strcmp(icg->t[0].kdata[fi], "L_STAR") == 0) x.gammat = gt_Lab; @@ -2395,7 +2678,7 @@ int main(int argc, char *argv[]) { if (fabs(gamma) < 0.1 || fabs(gamma) > 5.0) { dr->del(dr); - error ("Can't update '%s' - field 'TARGET_GAMMA' has bad value %f",outname,fabs(gamma)); + error("Can't update '%s' - field 'TARGET_GAMMA' has bad value %f",outname,fabs(gamma)); } if (gamma < 0.0) { /* Effective gamma = actual power value */ egamma = -gamma; @@ -2410,21 +2693,40 @@ int main(int argc, char *argv[]) { } else { x.oofff = atof(icg->t[0].kdata[fi]); } + + if ((fi = icg->find_kword(icg, 0, "BLACK_POINT_HACK")) < 0) { + bkhack = 0; + } else { + if (strcmp(icg->t[0].kdata[fi], "YES") == 0 + || strcmp(icg->t[0].kdata[fi], "yes") == 0) { + bkhack = 1; + } else { + bkhack = 0; + } + } + if ((fi = icg->find_kword(icg, 0, "TARGET_BLACK_BRIGHTNESS")) < 0) { bkbright = 0.0; /* Native */ } else { bkbright = atof(icg->t[0].kdata[fi]); } - - + if (bkhack && bkbright > 0.0) { + error("Can't update '%s' - BLACK_POINT_HACK and TARGET_BLACK_BRIGHTNESS conflict",outname); + } if ((fi = icg->find_kword(icg, 0, "BLACK_POINT_CORRECTION")) < 0) { dr->del(dr); - error ("Can't update '%s' - can't find field 'BLACK_POINT_CORRECTION'",outname); + error("Can't update '%s' - can't find field 'BLACK_POINT_CORRECTION'",outname); } bkcorrect = atof(icg->t[0].kdata[fi]); if (bkcorrect < 0.0 || bkcorrect > 1.0) { dr->del(dr); - error ("Can't update '%s' - field 'BLACK_POINT_CORRECTION' has bad value %f",outname,bkcorrect); + error("Can't update '%s' - field 'BLACK_POINT_CORRECTION' has bad value %f",outname,bkcorrect); + } + + if (bkhack && bkcorrect != 0.0) { + if (bkcorrect > 0.0) + warning("Due to -b flag, -k factor will be set to 0.0"); + bkcorrect = 0.0; } if ((fi = icg->find_kword(icg, 0, "BLACK_NEUTRAL_BLEND_RATE")) < 0) { @@ -2433,13 +2735,13 @@ int main(int argc, char *argv[]) { x.nbrate = atof(icg->t[0].kdata[fi]); if (x.nbrate < 0.05 || x.nbrate > 20.0) { dr->del(dr); - error ("Can't update '%s' - field 'BLACK_NEUTRAL_BLEND_RATE' has bad value %f",outname,x.nbrate); + error("Can't update '%s' - field 'BLACK_NEUTRAL_BLEND_RATE' has bad value %f",outname,x.nbrate); } } if ((fi = icg->find_kword(icg, 0, "QUALITY")) < 0) { dr->del(dr); - error ("Can't update '%s' - can't find field 'QUALITY'",outname); + error("Can't update '%s' - can't find field 'QUALITY'",outname); } if (quality < -50) { /* User hasn't overridden quality */ if (strcmp(icg->t[0].kdata[fi], "ultra low") == 0) @@ -2456,7 +2758,7 @@ int main(int argc, char *argv[]) { quality = 2; else { dr->del(dr); - error ("Can't update '%s' - field 'QUALITY' has unrecognised value '%s'", + error("Can't update '%s' - field 'QUALITY' has unrecognised value '%s'", outname,icg->t[0].kdata[fi]); } } @@ -2477,7 +2779,7 @@ int main(int argc, char *argv[]) { } if ((rdv[k] = malloc(sizeof(mcvco) * nsamp)) == NULL) { dr->del(dr); - error ("Malloc of scattered data points failed"); + error("Malloc of scattered data points failed"); } } //printf("~1 allocated calibration curve objects\n"); @@ -2488,11 +2790,11 @@ int main(int argc, char *argv[]) { if ((si[k] = icg->find_field(icg, 0, fnames[k])) < 0) { dr->del(dr); - error ("Can't updata '%s' - can't find field '%s'",outname,fnames[k]); + error("Can't updata '%s' - can't find field '%s'",outname,fnames[k]); } if (icg->t[0].ftype[si[k]] != r_t) { dr->del(dr); - error ("Can't updata '%s' - field '%s' is wrong type",outname,fnames[k]); + error("Can't updata '%s' - field '%s' is wrong type",outname,fnames[k]); } } //printf("~1 Found calibration curve fields\n"); @@ -2522,16 +2824,16 @@ int main(int argc, char *argv[]) { //printf("~1 Reading device curve channel %d\n",k); if ((si[k] = icg->find_field(icg, 1, fnames[k])) < 0) { dr->del(dr); - error ("Can't updata '%s' - can't find field '%s'",outname,fnames[k]); + error("Can't updata '%s' - can't find field '%s'",outname,fnames[k]); } if (icg->t[1].ftype[si[k]] != r_t) { dr->del(dr); - error ("Can't updata '%s' - field '%s' is wrong type",outname,fnames[k]); + error("Can't updata '%s' - field '%s' is wrong type",outname,fnames[k]); } /* Create the model curves */ if ((pp = (double *)malloc(icg->t[1].nsets * sizeof(double))) == NULL) { dr->del(dr); - error ("Malloc of device curve parameters"); + error("Malloc of device curve parameters"); } for (i = 0; i < icg->t[1].nsets; i++) pp[i] = *((double *)icg->t[1].fdata[i][si[k]]); @@ -2554,19 +2856,19 @@ int main(int argc, char *argv[]) { if ((icco = new_icc()) == NULL) { dr->del(dr); - error ("Creation of ICC object to read profile '%s' failed",iccoutname); + error("Creation of ICC object to read profile '%s' failed",iccoutname); } /* Open up the profile for reading */ if ((ic_fp = new_icmFileStd_name(iccoutname,"r")) == NULL) { dr->del(dr); - error ("Can't open file '%s'",iccoutname); + error("Can't open file '%s'",iccoutname); } /* Read header etc. */ if ((rv = icco->read(icco,ic_fp,0)) != 0) { dr->del(dr); - error ("Reading profile '%s' failed with %d, %s",iccoutname, rv,icco->err); + error("Reading profile '%s' failed with %d, %s",iccoutname, rv,icco->err); } ic_fp->del(ic_fp); @@ -2663,6 +2965,8 @@ int main(int argc, char *argv[]) { else x.nat = 0; + x.bkhack = bkhack; + /* Say something about what we're doing */ if (verb) { if (out_tvenc) @@ -2696,6 +3000,8 @@ int main(int argc, char *argv[]) { printf("Target black brightness = %f cd/m^2\n",bkbright); else printf("Target black brightness = native brightness\n"); + if (bkhack) + printf("Black point device hack is enabled\n"); } switch(x.gammat) { @@ -3426,9 +3732,9 @@ int main(int argc, char *argv[]) { } else if (c == '7') { if (!verb) { /* Tell user command has been accepted */ if (verify == 2) - printf("Commencing device verification\n"); + printf("Commencing display verification\n"); else - printf("Commencing device calibration\n"); + printf("Commencing display calibration\n"); } break; } else if (c == '8' || c == 0x03 || c == 0x1b) { @@ -3451,10 +3757,10 @@ int main(int argc, char *argv[]) { /* Read the base test set */ { - icmXYZNumber mrd; /* Number for matrix */ - icmXYZNumber mgn; - icmXYZNumber mbl; - icmXYZNumber mwh; + double mrd[3]; /* Number for matrix */ + double mgn[3]; + double mbl[3]; + double mwh[3]; ramdac *or = NULL; col base[9] = { /* Base set of test colors */ @@ -3480,14 +3786,17 @@ int main(int argc, char *argv[]) { if (verb) { if (verify == 2) - printf("Commencing device verification\n"); + printf("Commencing display verification\n"); else - printf("Commencing device calibration\n"); + printf("Commencing display calibration\n"); } /* Switch to native for this, so the black calc is realistic. */ /* (Should we really get black aim from previous .cal though ???) */ if (verify == 2) { + if (fake) + error("Can't verify against current curves using fake device"); + if ((or = dr->dw->get_ramdac(dr->dw)) != NULL) { ramdac *r; if (verb) printf("Switching to native response for base measurements\n"); @@ -3543,10 +3852,10 @@ int main(int argc, char *argv[]) { icmAry2Ary(x.wh, base[ix_w1].XYZ); icmAry2XYZ(x.twN, x.wh); /* Use this as Lab reference white until we establish target */ - icmAry2XYZ(mrd, base[ix_r].XYZ); - icmAry2XYZ(mgn, base[ix_g].XYZ); - icmAry2XYZ(mbl, base[ix_b].XYZ); - icmAry2XYZ(mwh, base[ix_w1].XYZ); + icmAry2Ary(mrd, base[ix_r].XYZ); + icmAry2Ary(mgn, base[ix_g].XYZ); + icmAry2Ary(mbl, base[ix_b].XYZ); + icmAry2Ary(mwh, base[ix_w1].XYZ); if (verb) { printf("Black = XYZ %6.4f %6.4f %6.4f\n",x.bk[0],x.bk[1],x.bk[2]); @@ -3557,11 +3866,10 @@ int main(int argc, char *argv[]) { } /* Setup forward matrix */ - if (icmRGBprim2matrix(mwh, mrd, mgn, mbl, x.fm)) { + if (icmRGBXYZprim2matrix(mrd, mgn, mbl, mwh, x.fm)) { dr->del(dr); error("Aprox. fwd matrix unexpectedly singular\n"); } - icmTranspose3x3(x.fm, x.fm); /* Convert [RGB][XYZ] to [XYZ][RGB] */ #ifdef DEBUG if (verb) { @@ -3607,13 +3915,13 @@ int main(int argc, char *argv[]) { if ((cols = (col *)malloc(isteps * 4 * sizeof(col))) == NULL) { dr->del(dr); - error ("Malloc of array of readings failed"); + error("Malloc of array of readings failed"); } for (j = 0; j < 4; j++) { if ((asrgb[j] = (sxyz *)malloc(isteps * sizeof(sxyz))) == NULL) { free(cols); dr->del(dr); - error ("Malloc of array of readings failed"); + error("Malloc of array of readings failed"); } } @@ -3675,7 +3983,7 @@ int main(int argc, char *argv[]) { if ((sdv = malloc(sizeof(mcvco) * isteps)) == NULL) { free(cols); free(asrgb[0]); free(asrgb[1]); free(asrgb[2]); free(asrgb[3]); dr->del(dr); - error ("Malloc of scattered data points failed"); + error("Malloc of scattered data points failed"); } for (k = 0; k < 3; k++) { /* Create the model curves */ for (i = 0; i < isteps; i++) { @@ -3706,7 +4014,7 @@ int main(int argc, char *argv[]) { if ((x.rp = (optref *)malloc(sizeof(optref) * x.nrp)) == NULL) { free(cols); free(asrgb[0]); free(asrgb[1]); free(asrgb[2]); free(asrgb[3]); dr->del(dr); - error ("Malloc of measurement reference points failed"); + error("Malloc of measurement reference points failed"); } for (k = 0; k < 4; k++) { for (i = 0; i < isteps; i++) { @@ -3736,7 +4044,7 @@ int main(int argc, char *argv[]) { if ((sa = malloc(x.np * sizeof(double))) == NULL) { free(cols); free(asrgb[0]); free(asrgb[1]); free(asrgb[2]); free(asrgb[3]); dr->del(dr); - error ("Malloc of scattered data points failed"); + error("Malloc of scattered data points failed"); } for (i = 0; i < x.np; i++) @@ -3747,7 +4055,7 @@ int main(int argc, char *argv[]) { if (powell(&re, x.np, op, sa, 1e-5, 3000, dev_opt_func, (void *)&x, NULL, NULL) != 0) { free(cols); free(asrgb[0]); free(asrgb[1]); free(asrgb[2]); free(asrgb[3]); dr->del(dr); - error ("Model powell failed, re = %f",re); + error("Model powell failed, re = %f",re); } #else if (conjgrad(&re, x.np, op, sa, 1e-5, 3000, @@ -3851,7 +4159,7 @@ int main(int argc, char *argv[]) { set[0].r, set[0].g, set[0].b, alab[0], alab[1], alab[2], mlab[0], mlab[1], mlab[2],de); } anerr /= (double)(nn+3); - printf("Model maximum error (@ %f) = %f deltaE\n",mnv, mnerr); + printf("Model maximum error(@ %f) = %f deltaE\n",mnv, mnerr); printf("Model average error = %f deltaE\n",anerr); } #endif /* CHECK_MODEL */ @@ -3906,7 +4214,7 @@ int main(int argc, char *argv[]) { double sa = 0.1; if (powell(NULL, 1, &scale, &sa, 1e-7, 500, wp_opt_func, (void *)&x, NULL, NULL) != 0) - error ("WP scale powell failed"); + error("WP scale powell failed"); x.twh[0] *= scale; x.twh[1] *= scale; @@ -4146,7 +4454,7 @@ int main(int argc, char *argv[]) { for (j = 0; j < 3; j++) { if ((sdv[j] = malloc(sizeof(mcvco) * rsteps)) == NULL) { dr->del(dr); - error ("Malloc of scattered data points failed"); + error("Malloc of scattered data points failed"); } } @@ -4161,9 +4469,12 @@ int main(int argc, char *argv[]) { sdv[j][i].w = 1.0; } } - if (x.nat) /* Make curve go thought white if possible */ + if (x.nat) /* Make curve go thought white if possible by setting a weighting */ sdv[0][rsteps-1].w = sdv[1][rsteps-1].w = sdv[2][rsteps-1].w = 50.0; + if (x.bkhack) /* Make curve go thought black if possible by setting a weighting */ + sdv[0][0].w = sdv[1][0].w = sdv[2][0].w = 50.0; + /* Create an initial set of RAMDAC curves */ for (j = 0; j < 3; j++) x.rdac[j]->fit(x.rdac[j], 0, fitord, sdv[j], rsteps, RDAC_SMOOTH); @@ -4175,6 +4486,13 @@ int main(int argc, char *argv[]) { x.rdac[j]->force_1(x.rdac[j], 1.0); } + /* Make sure that if we are using black point hack, */ + /* that the curves go to a perfect 0.0 ... */ + if (x.bkhack) { + for (j = 0; j < 3; j++) + x.rdac[j]->force_0(x.rdac[j], 0.0); + } + for (j = 0; j < 3; j++) free (sdv[j]); } @@ -4207,7 +4525,8 @@ int main(int argc, char *argv[]) { dr->reset_targ_w(dr); /* Reset white drift target at start of main cal. */ /* Now we go into the main verify & refine loop */ - for (it = verify == 2 ? mxits : 0; it < mxits || verify != 0; + for (it = verify == 2 ? mxits : 0; + it < mxits || verify != 0; rsteps *= 2, errthr /= (it < mxits) ? pow(2.0,THRESH_SCALE_POW) : 1.0, it++) { int totmeas = 0; /* Total number of measurements in this pass */ col set[3]; /* Variable to read one to three values from the display */ @@ -4310,7 +4629,6 @@ int main(int argc, char *argv[]) { /* and we're not doing a verification, */ /* adjust all the other point targets txyz to track the white. */ if (x.nat && i == (rsteps-1) && it < mxits && asgrey.s[i].v == 1.0) { - icmAry2Ary(x.twh, asgrey.s[i].XYZ); /* Set current white */ icmAry2XYZ(x.twN, x.twh); /* Need this for Lab conversions */ init_csamp_txyz(&asgrey, &x, 1, verb); /* Recompute txyz's */ @@ -4321,6 +4639,15 @@ int main(int argc, char *argv[]) { } } + /* If black point hack and we've just measured it, */ + /* and we're not doing a verification, */ + if (x.bkhack && i == 0 && it < mxits && asgrey.s[i].v == 0.0) { + icmAry2Ary(x.tbk, asgrey.s[i].XYZ); /* Set current black */ + icmAry2XYZ(x.tbN, x.tbk); + init_csamp_txyz(&asgrey, &x, 1, verb); /* Recompute txyz's */ + icmAry2Ary(peqXYZ, asgrey.s[i].tXYZ); /* Fix peqXYZ */ + } + /* Compute the next change wanted to hit target */ icmSub3(asgrey.s[i].deXYZ, asgrey.s[i].tXYZ, asgrey.s[i].XYZ); @@ -4782,7 +5109,7 @@ int main(int argc, char *argv[]) { for (j = 0; j < 3; j++) { if ((sdv[j] = malloc(sizeof(mcvco) * asgrey.no)) == NULL) { dr->del(dr); - error ("Malloc of scattered data points failed"); + error("Malloc of scattered data points failed"); } } @@ -4803,6 +5130,9 @@ int main(int argc, char *argv[]) { if (x.nat) /* Make curve go thought white if possible */ sdv[0][rsteps-1].w = sdv[1][rsteps-1].w = sdv[2][rsteps-1].w = 10.0; + if (x.bkhack) /* Make curve go thought black if possible */ + sdv[0][0].w = sdv[1][0].w = sdv[2][0].w = 10.0; + for (j = 0; j < 3; j++) x.rdac[j]->fit(x.rdac[j], 0, fitord, sdv[j], asgrey.no, RDAC_SMOOTH); @@ -4813,6 +5143,13 @@ int main(int argc, char *argv[]) { x.rdac[j]->force_1(x.rdac[j], 1.0); } + /* Make sure that if we are using black hack black point, */ + /* that the curves go to a perfect 0.0 ... */ + if (x.bkhack) { + for (j = 0; j < 3; j++) + x.rdac[j]->force_0(x.rdac[j], 0.0); + } + for (j = 0; j < 3; j++) free(sdv[j]); #ifdef DEBUG_PLOT @@ -4840,6 +5177,10 @@ int main(int argc, char *argv[]) { } #endif } + + if (verify != 0) /* Do only a single pass */ + break; + } /* Next refine/verify loop */ free_alloc_csamp(&asgrey); /* We're done with test points */ @@ -4924,6 +5265,10 @@ int main(int argc, char *argv[]) { ocg->add_kword(ocg, 0, "TARGET_BLACK_BRIGHTNESS",buf, NULL); } + if (bkhack) { + ocg->add_kword(ocg, 0, "BLACK_POINT_HACK","YES", NULL); + } + /* Write rest of setup */ switch (quality) { case -3: /* Test value */ @@ -5042,15 +5387,15 @@ int main(int argc, char *argv[]) { icmVideoCardGamma *wo; if ((icco = new_icc()) == NULL) - error ("Creation of ICC object to read profile '%s' failed",iccoutname); + error("Creation of ICC object to read profile '%s' failed",iccoutname); /* Open up the profile for reading */ if ((ic_fp = new_icmFileStd_name(iccoutname,"r")) == NULL) - error ("Can't open file '%s'",iccoutname); + error("Can't open file '%s'",iccoutname); /* Read header etc. */ if ((rv = icco->read(icco,ic_fp,0)) != 0) - error ("Reading profile '%s' failed with %d, %s",iccoutname, rv,icco->err); + error("Reading profile '%s' failed with %d, %s",iccoutname, rv,icco->err); /* Read every tag */ if (icco->read_all_tags(icco) != 0) { @@ -5099,10 +5444,10 @@ int main(int argc, char *argv[]) { /* Open up the profile again writing */ if ((ic_fp = new_icmFileStd_name(iccoutname,"w")) == NULL) - error ("Can't open file '%s' for writing",iccoutname); + error("Can't open file '%s' for writing",iccoutname); if ((rv = icco->write(icco,ic_fp,0)) != 0) - error ("Write to file '%s' failed: %d, %s",iccoutname, rv,icco->err); + error("Write to file '%s' failed: %d, %s",iccoutname, rv,icco->err); if (verb) printf("Updated profile '%s'\n",iccoutname); @@ -5132,6 +5477,13 @@ int main(int argc, char *argv[]) { double calrgb[3]; /* 1.0 through calibration curves */ double clrgb[3]; /* 1.0 through calibration and linearization */ + /* Open up the file for writing */ + if ((wr_fp = new_icmFileStd_name(iccoutname,"w")) == NULL) + error("Write: Can't open file '%s'",iccoutname); + + if ((wr_icco = new_icc()) == NULL) + error("Write: Creation of ICC object failed"); + /* Lookup white and black points */ { int j; @@ -5210,7 +5562,7 @@ int main(int argc, char *argv[]) { #endif /* Adapt matrix */ icmAry2XYZ(swp, wp); - icmChromAdaptMatrix(ICM_CAM_MULMATRIX | ICM_CAM_BRADFORD, icmD50, swp, mat); + wr_icco->chromAdaptMatrix(wr_icco, ICM_CAM_MULMATRIX, icmD50, swp, mat); #ifdef NEVER { double rgb[3], xyz[3], lab[3]; @@ -5252,7 +5604,7 @@ int main(int argc, char *argv[]) { #endif /* Adapt matrix */ icmAry2XYZ(swp, wp); - icmChromAdaptMatrix(ICM_CAM_MULMATRIX | ICM_CAM_BRADFORD, icmD50, swp, mat); + wr_icco->chromAdaptMatrix(wr_icco, ICM_CAM_MULMATRIX, icmD50, swp, mat); #ifdef NEVER { double rgb[3], xyz[3], lab[3]; @@ -5266,13 +5618,6 @@ int main(int argc, char *argv[]) { } } - /* Open up the file for writing */ - if ((wr_fp = new_icmFileStd_name(iccoutname,"w")) == NULL) - error("Write: Can't open file '%s'",iccoutname); - - if ((wr_icco = new_icc()) == NULL) - error("Write: Creation of ICC object failed"); - /* Add all the tags required */ /* The header: */ @@ -5622,6 +5967,7 @@ int main(int argc, char *argv[]) { } free_a_disppath(disp); + free_ccids(ccids); return 0; } diff --git a/spectro/dispread.c b/spectro/dispread.c index 990501f..6af203b 100644 --- a/spectro/dispread.c +++ b/spectro/dispread.c @@ -16,6 +16,10 @@ /* TTBD + Add support for black recalibration using i1pro or munki. + Setable timeout ? Need to allow placing instrument back + on screen. Need this to properly handle ss anyway ? + Add bell at end of readings ? Ideally this should be changed to always create non-normalized (absolute) @@ -50,18 +54,22 @@ #include "aconfig.h" #include "numlib.h" #include "xspect.h" -#include "ccmx.h" -#include "ccss.h" #include "cgats.h" #include "insttypes.h" #include "conv.h" #include "icoms.h" #include "inst.h" +#include "ccmx.h" +#include "ccss.h" +#include "ccast.h" #include "dispwin.h" #include "dispsup.h" #include "sort.h" #include "instappsup.h" -#include "spyd2setup.h" /* Enable Spyder 2 access */ +#ifdef ENABLE_USB +# include "spyd2.h" +#endif +#include "ui.h" /* ------------------------------------------------------------------- */ #if defined(__APPLE__) && defined(__POWERPC__) @@ -84,12 +92,14 @@ static int gcc_bug_fix(int i) { Flags used: ABCDEFGHIJKLMNOPQRSTUVWXYZ - upper .... .... .. .. ... + upper .... .... .. .. ..... lower .. . . . . .. . */ -void usage(char *diag, ...) { +/* Flag = 0x0000 = default */ +/* Flag & 0x0001 = list ChromCast's */ +void usage(int flag, char *diag, ...) { int i; disppath **dp; icompaths *icmps; @@ -97,8 +107,6 @@ void usage(char *diag, ...) { fprintf(stderr,"Read a Display, Version %s\n",ARGYLL_VERSION_STR); fprintf(stderr,"Author: Graeme W. Gill, licensed under the AGPL Version 3\n"); - if (setup_spyd2() == 2) - fprintf(stderr,"WARNING: This file contains a proprietary firmware image, and may not be freely distributed !\n"); if (diag != NULL) { va_list args; fprintf(stderr,"Diagnostic: "); @@ -129,6 +137,22 @@ void usage(char *diag, ...) { } free_disppaths(dp); fprintf(stderr," -dweb[:port] Display via a web server at port (default 8080)\n"); + fprintf(stderr," -dcc[:n] Display via n'th ChromeCast (default 1, ? for list)\n"); + if (flag & 0x001) { + ccast_id **ids; + if ((ids = get_ccids()) == NULL) { + fprintf(stderr," ** Error discovering ChromCasts **\n"); + } else { + if (ids[0] == NULL) + fprintf(stderr," ** No ChromCasts found **\n"); + else { + int i; + for (i = 0; ids[i] != NULL; i++) + fprintf(stderr," %d = '%s'\n",i+1,ids[i]->name); + free_ccids(ids); + } + } + } #ifdef NT fprintf(stderr," -dmadvr Display via MadVR Video Renderer\n"); #endif @@ -141,7 +165,8 @@ void usage(char *diag, ...) { for (i = 0; ; i++) { if (paths[i] == NULL) break; - if (paths[i]->itype == instSpyder2 && setup_spyd2() == 0) + if ((paths[i]->itype == instSpyder1 && setup_spyd2(0) == 0) + || (paths[i]->itype == instSpyder2 && setup_spyd2(1) == 0)) fprintf(stderr," %d = '%s' !! Disabled - no firmware !!\n",i+1,paths[i]->name); else fprintf(stderr," %d = '%s'\n",i+1,paths[i]->name); @@ -165,6 +190,7 @@ void usage(char *diag, ...) { fprintf(stderr," -n Don't set override redirect on test window\n"); #endif fprintf(stderr," -E Encode the test values for video range 16..235/255\n"); + fprintf(stderr," -Z nbits Quantize test values to fit in nbits\n"); fprintf(stderr," -J Run instrument calibration first (used rarely)\n"); fprintf(stderr," -N Disable initial calibration of instrument if possible\n"); fprintf(stderr," -H Use high resolution spectrum mode (if available)\n"); @@ -192,12 +218,13 @@ void usage(char *diag, ...) { } int main(int argc, char *argv[]) { - int i,j; + int i, j; int fa, nfa, mfa; /* current argument we're looking at */ disppath *disp = NULL; /* Display being used */ double hpatscale = 1.0, vpatscale = 1.0; /* scale factor for test patch size */ double ho = 0.0, vo = 0.0; /* Test window offsets, -1.0 to 1.0 */ int out_tvenc = 0; /* 1 to use RGB Video Level encoding */ + int qbits = 0; /* Quantization bits, 0 = not set */ int blackbg = 0; /* NZ if whole screen should be filled with black */ int verb = 0; int debug = 0; @@ -217,13 +244,16 @@ int main(int argc, char *argv[]) { int tele = 0; /* NZ if telephoto mode */ int noautocal = 0; /* Disable auto calibration */ int noplace = 0; /* Disable user instrument placement */ - int nonorm = 0; /* Disable normalisation */ + int donorm = 1; /* Enable Y = 100 normalisation */ char ccxxname[MAXNAMEL+1] = "\000"; /* Colorimeter Correction Matrix name */ ccmx *cmx = NULL; /* Colorimeter Correction Matrix */ ccss *ccs = NULL; /* Colorimeter Calibration Spectral Samples */ int spec = 0; /* Don't save spectral information */ icxObserverType obType = icxOT_default; int webdisp = 0; /* NZ for web display, == port number */ + int ccdisp = 0; /* NZ for ChromeCast, == list index */ + ccast_id **ccids = NULL; + ccast_id *ccid = NULL; #ifdef NT int madvrdisp = 0; /* NZ for MadVR display */ #endif @@ -261,7 +291,6 @@ int main(int argc, char *argv[]) { set_exe_path(argv[0]); /* Set global exe_path and error_program */ check_if_not_interactive(); - setup_spyd2(); /* Load firware if available */ #ifdef DEBUG_OFFSET ho = 0.8; @@ -273,7 +302,7 @@ int main(int argc, char *argv[]) { #endif if (argc <= 1) - usage("Too few arguments"); + usage(0,"Too few arguments"); if (ncal > MAX_CAL_ENT) error("Internal, ncal = %d > MAX_CAL_ENT %d\n",ncal,MAX_CAL_ENT); @@ -297,7 +326,7 @@ int main(int argc, char *argv[]) { } if (argv[fa][1] == '?' || argv[fa][1] == '-') { - usage("Usage requested"); + usage(0,"Usage requested"); } else if (argv[fa][1] == 'v') { verb = 1; @@ -311,7 +340,19 @@ int main(int argc, char *argv[]) { if (na[3] == ':') { webdisp = atoi(na+4); if (webdisp == 0 || webdisp > 65535) - usage("Web port number must be in range 1..65535"); + usage(0,"Web port number must be in range 1..65535"); + } + fa = nfa; + } else if (strncmp(na,"cc",2) == 0 + || strncmp(na,"CC",2) == 0) { + ccdisp = 1; + if (na[2] == ':') { + if (na[3] < '0' || na[3] > '9') + usage(0x0001,"Available ChromeCasts"); + + ccdisp = atoi(na+3); + if (ccdisp <= 0) + usage(0,"ChromCast number must be in range 1..N"); } fa = nfa; #ifdef NT @@ -325,10 +366,10 @@ int main(int argc, char *argv[]) { int ix, iv; if (strcmp(&argv[fa][2], "isplay") == 0 || strcmp(&argv[fa][2], "ISPLAY") == 0) { - if (++fa >= argc || argv[fa][0] == '-') usage("Parameter expected following -display"); + if (++fa >= argc || argv[fa][0] == '-') usage(0,"Parameter expected following -display"); setenv("DISPLAY", argv[fa], 1); } else { - if (na == NULL) usage("Parameter expected following -d"); + if (na == NULL) usage(0,"Parameter expected following -d"); fa = nfa; if (strcmp(na,"fake") == 0) { fake = 1; @@ -340,14 +381,14 @@ int main(int argc, char *argv[]) { if (disp != NULL) free_a_disppath(disp); if ((disp = get_a_display(ix-1)) == NULL) - usage("-d parameter %d out of range",ix); + usage(0,"-d parameter %d out of range",ix); if (iv > 0) disp->rscreen = iv-1; } } #else int ix; - if (na == NULL) usage("Parameter expected following -d"); + if (na == NULL) usage(0,"Parameter expected following -d"); fa = nfa; if (strcmp(na,"fake") == 0) { fake = 1; @@ -356,7 +397,7 @@ int main(int argc, char *argv[]) { if (disp != NULL) free_a_disppath(disp); if ((disp = get_a_display(ix-1)) == NULL) - usage("-d parameter %d out of range",ix); + usage(0,"-d parameter %d out of range",ix); } #endif } @@ -368,9 +409,9 @@ int main(int argc, char *argv[]) { /* COM port */ } else if (argv[fa][1] == 'c') { fa = nfa; - if (na == NULL) usage("Paramater expected following -c"); + if (na == NULL) usage(0,"Paramater expected following -c"); comport = atoi(na); - if (comport < 1 || comport > 50) usage("-c parameter %d out of range",comport); + if (comport < 1 || comport > 50) usage(0,"-c parameter %d out of range",comport); /* Telephoto */ } else if (argv[fa][1] == 'p') { @@ -379,13 +420,13 @@ int main(int argc, char *argv[]) { /* Display type */ } else if (argv[fa][1] == 'y') { fa = nfa; - if (na == NULL) usage("Parameter expected after -y"); + if (na == NULL) usage(0,"Parameter expected after -y"); dtype = na[0]; /* Calibration file */ } else if (argv[fa][1] == 'k' || argv[fa][1] == 'K') { - if (na == NULL) usage("Parameter expected after -%c",argv[fa][1]); + if (na == NULL) usage(0,"Parameter expected after -%c",argv[fa][1]); strncpy(calname,na,MAXNAMEL); calname[MAXNAMEL] = '\000'; if (argv[fa][1] == 'K') native |= 1; /* Use native linear & soft cal */ @@ -406,19 +447,19 @@ int main(int argc, char *argv[]) { /* Test patch offset and size */ } else if (argv[fa][1] == 'P') { fa = nfa; - if (na == NULL) usage("Parameter expected after -P"); + if (na == NULL) usage(0,"Parameter expected after -P"); if (sscanf(na, " %lf,%lf,%lf,%lf ", &ho, &vo, &hpatscale, &vpatscale) == 4) { ; } else if (sscanf(na, " %lf,%lf,%lf ", &ho, &vo, &hpatscale) == 3) { vpatscale = hpatscale; } else { - usage("-P parameter '%s' not recognised",na); + usage(0,"-P parameter '%s' not recognised",na); } if (ho < 0.0 || ho > 1.0 || vo < 0.0 || vo > 1.0 || hpatscale <= 0.0 || hpatscale > 50.0 || vpatscale <= 0.0 || vpatscale > 50.0) - usage("-P parameters %f %f %f %f out of range",ho,vo,hpatscale,vpatscale); + usage(0,"-P parameters %f %f %f %f out of range",ho,vo,hpatscale,vpatscale); ho = 2.0 * ho - 1.0; vo = 2.0 * vo - 1.0; @@ -429,6 +470,16 @@ int main(int argc, char *argv[]) { /* Video encoded output */ } else if (argv[fa][1] == 'E') { out_tvenc = 1; + if (qbits == 0) + qbits = 8; + + /* Specify quantization bits */ + } else if (argv[fa][1] == 'Z') { + fa = nfa; + if (na == NULL) usage(0,"Expected argument to -Z"); + qbits = atoi(na); + if (qbits < 1 || qbits > 32) + usage(0,"Argument to -Q must be between 1 and 32"); /* Force calibration */ } else if (argv[fa][1] == 'J') { @@ -442,21 +493,21 @@ int main(int argc, char *argv[]) { } else if (argv[fa][1] == 'H') { highres = 1; - /* No normalisation */ + /* Disable normalisation of values to white Y = 100 */ } else if (argv[fa][1] == 'w') { - nonorm = 1; + donorm = 0; /* Colorimeter Correction Matrix */ /* or Colorimeter Calibration Spectral Samples */ } else if (argv[fa][1] == 'X') { int ix; fa = nfa; - if (na == NULL) usage("Parameter expected following -X"); + if (na == NULL) usage(0,"Parameter expected following -X"); strncpy(ccxxname,na,MAXNAMEL-1); ccxxname[MAXNAMEL-1] = '\000'; } else if (argv[fa][1] == 'I') { fa = nfa; - if (na == NULL || na[0] == '\000') usage("Parameter expected after -I"); + if (na == NULL || na[0] == '\000') usage(0,"Parameter expected after -I"); for (i=0; ; i++) { if (na[i] == '\000') break; @@ -465,13 +516,13 @@ int main(int argc, char *argv[]) { else if (na[i] == 'w' || na[i] == 'W') wdrift = 1; else - usage("-I parameter '%c' not recognised",na[i]); + usage(0,"-I parameter '%c' not recognised",na[i]); } /* Spectral Observer type */ } else if (argv[fa][1] == 'Q') { fa = nfa; - if (na == NULL) usage("Parameter expecte after -Q"); + if (na == NULL) usage(0,"Parameter expecte after -Q"); if (strcmp(na, "1931_2") == 0) { /* Classic 2 degree */ obType = icxOT_CIE_1931_2; } else if (strcmp(na, "1964_10") == 0) { /* Classic 10 degree */ @@ -485,25 +536,25 @@ int main(int argc, char *argv[]) { } else if (strcmp(na, "shaw") == 0) { /* Shaw and Fairchilds 1997 2 degree */ obType = icxOT_Shaw_Fairchild_2; } else - usage("-Q parameter '%s' not recognised",na); + usage(0,"-Q parameter '%s' not recognised",na); /* Change color callout */ } else if (argv[fa][1] == 'C') { fa = nfa; - if (na == NULL) usage("Parameter expected after -C"); + if (na == NULL) usage(0,"Parameter expected after -C"); ccallout = na; /* Measure color callout */ } else if (argv[fa][1] == 'M') { fa = nfa; - if (na == NULL) usage("Parameter expected after -M"); + if (na == NULL) usage(0,"Parameter expected after -M"); mcallout = na; /* Serial port flow control */ } else if (argv[fa][1] == 'W') { fa = nfa; - if (na == NULL) usage("Parameter expected after -W"); + if (na == NULL) usage(0,"Parameter expected after -W"); if (na[0] == 'n' || na[0] == 'N') fc = fc_none; else if (na[0] == 'h' || na[0] == 'H') @@ -511,7 +562,7 @@ int main(int argc, char *argv[]) { else if (na[0] == 'x' || na[0] == 'X') fc = fc_XonXOff; else - usage("-W parameter '%s' not recognised",na); + usage(0,"-W parameter '%s' not recognised",na); } else if (argv[fa][1] == 'D') { debug = 1; @@ -525,32 +576,38 @@ int main(int argc, char *argv[]) { /* Extra flags */ } else if (argv[fa][1] == 'Y') { if (na == NULL) - usage("Flag '-Y' expects extra flag"); + usage(0,"Flag '-Y' expects extra flag"); if (na[0] == 'R') { if (na[1] != ':') - usage("-Y R:rate syntax incorrect"); + usage(0,"-Y R:rate syntax incorrect"); refrate = atof(na+2); if (refrate < 5.0 || refrate > 150.0) - usage("-Y R:rate %f Hz not in valid range",refrate); + usage(0,"-Y R:rate %f Hz not in valid range",refrate); } else if (na[0] == 'p') { noplace = 1; } else if (na[0] == 'A') { nadaptive = 1; } else { - usage("Flag '-Y %c' not recognised",na[0]); + usage(0,"Flag '-Y %c' not recognised",na[0]); } fa = nfa; } else - usage("Flag '-%c' not recognised",argv[fa][1]); + usage(0,"Flag '-%c' not recognised",argv[fa][1]); } else break; } /* No explicit display has been set */ - if (!fake && disp == NULL) { + if (!fake +#ifdef NT + && madvrdisp == 0 +#endif + && webdisp == 0 + && ccdisp == 0 + && disp == NULL) { int ix = 0; #if defined(UNIX_X11) char *dn, *pp; @@ -607,9 +664,22 @@ int main(int argc, char *argv[]) { if ((ipath = icmps->get_path(icmps, comport)) == NULL) error("No instrument at port %d",comport); + /* If we've requested ChromeCast, look it up */ + if (ccdisp) { + if ((ccids = get_ccids()) == NULL) + error("discovering ChromCasts failed"); + if (ccids[0] == NULL) + error("There are no ChromCasts to use\n"); + for (i = 0; ccids[i] != NULL; i++) + ; + if (ccdisp < 1 || ccdisp > i) + error("Chosen ChromCasts (%d) is outside list (1..%d)\n",ccdisp,i); + ccid = ccids[ccdisp-1]; + } + if (docalib) { - if ((rv = disprd_calibration(ipath, fc, dtype, 0, tele, nadaptive, noautocal, - disp, webdisp, + if ((rv = disprd_calibration(ipath, fc, dtype, -1, 0, tele, nadaptive, noautocal, + disp, webdisp, ccid, #ifdef NT madvrdisp, #endif @@ -621,7 +691,7 @@ int main(int argc, char *argv[]) { } /* Get the file name argument */ - if (fa >= argc || argv[fa][0] == '-') usage("Filname parameter not found"); + if (fa >= argc || argv[fa][0] == '-') usage(0,"Filname parameter not found"); strncpy(inname,argv[fa++],MAXNAMEL-4); inname[MAXNAMEL-4] = '\000'; strcpy(outname,inname); strcat(inname,".ti1"); @@ -683,10 +753,13 @@ int main(int argc, char *argv[]) { error("Malloc failed!"); /* Figure out the color space */ + /* Read all the test patches in, and quantize them */ if ((fi = icg->find_kword(icg, 0, "COLOR_REP")) < 0) error ("Input file '%s' doesn't contain keyword COLOR_REP",inname); if (strcmp(icg->t[0].kdata[fi],"RGB") == 0) { int ri, gi, bi; + double rgb[3]; + double qscale = (1 << qbits) - 1.0; dim = 3; if ((ri = icg->find_field(icg, 0, "RGB_R")) < 0) error ("Input file '%s' doesn't contain field RGB_R",inname); @@ -709,9 +782,22 @@ int main(int argc, char *argv[]) { ocg->add_field(ocg, 0, "XYZ_Z", r_t); for (i = 0; i < npat; i++) { cols[i].id = ((char *)icg->t[0].fdata[i][si]); - cols[i].r = *((double *)icg->t[0].fdata[i][ri]) / 100.0; - cols[i].g = *((double *)icg->t[0].fdata[i][gi]) / 100.0; - cols[i].b = *((double *)icg->t[0].fdata[i][bi]) / 100.0; + rgb[0] = *((double *)icg->t[0].fdata[i][ri]) / 100.0; + rgb[1] = *((double *)icg->t[0].fdata[i][gi]) / 100.0; + rgb[2] = *((double *)icg->t[0].fdata[i][bi]) / 100.0; + if (qbits > 0) { + double vr; + for (j = 0; j < 3; j++) { + rgb[j] *= qscale; + vr = floor(rgb[j] + 0.5); + if ((vr - rgb[j]) == 0.5 && (((int)vr) & 1) != 0) /* Round to even */ + vr -= 1.0; + rgb[j] = vr/qscale; + } + } + cols[i].r = rgb[0]; + cols[i].g = rgb[1]; + cols[i].b = rgb[2]; cols[i].XYZ[0] = cols[i].XYZ[1] = cols[i].XYZ[2] = -1.0; } } else @@ -809,14 +895,16 @@ int main(int argc, char *argv[]) { cal[0][0] = -1.0; /* Not used */ } - if ((dr = new_disprd(&errc, ipath, fc, dtype, 0, tele, nadaptive, noautocal, noplace, + if ((dr = new_disprd(&errc, ipath, fc, dtype, -1, 0, tele, nadaptive, noautocal, noplace, highres, refrate, native, &noramdac, &nocm, cal, ncal, disp, - out_tvenc, blackbg, override, webdisp, + out_tvenc, blackbg, override, webdisp, ccid, #ifdef NT madvrdisp, #endif ccallout, mcallout, 100.0 * hpatscale, 100.0 * vpatscale, ho, vo, + ccs != NULL ? ccs->dtech : cmx != NULL ? cmx->dtech : disptech_unknown, + cmx != NULL ? cmx->cc_cbid : 0, cmx != NULL ? cmx->matrix : NULL, ccs != NULL ? ccs->samples : NULL, ccs != NULL ? ccs->no_samp : 0, spec, obType, NULL, bdrift, wdrift, @@ -831,7 +919,7 @@ int main(int argc, char *argv[]) { /* Test the CRT with all of the test points */ if ((rv = dr->read(dr, cols, npat + xpat, 1, npat + xpat, 1, 0, instNoClamp)) != 0) { dr->del(dr); - error("test_crt returned error code %d\n",rv); + error("dispd->read returned error code %d\n",rv); } /* Note what instrument the chart was read with */ if (dr->it != NULL) { @@ -881,14 +969,13 @@ int main(int argc, char *argv[]) { wpat = npat; } - if (nonorm) - nn = 1.0; - else { + if (donorm) { if (cols[wpat].XYZ_v == 0) error("XYZ of white patch is not valid!\nCan't normalise value to white",i); nn = 100.0 / cols[wpat].XYZ[1]; /* Normalise Y of white to 100 */ - } + } else + nn = 1.0; for (i = 0; i < npat; i++) { @@ -973,7 +1060,7 @@ int main(int argc, char *argv[]) { ocg->add_kword(ocg, 0, "LUMINANCE_XYZ_CDM2",buf, NULL); } - if (nonorm == 0) + if (donorm) ocg->add_kword(ocg, 0, "NORMALIZED_TO_Y_100","YES", NULL); else ocg->add_kword(ocg, 0, "NORMALIZED_TO_Y_100","NO", NULL); @@ -1028,6 +1115,7 @@ int main(int argc, char *argv[]) { ocg->del(ocg); /* Clean up */ icg->del(icg); /* Clean up */ free_a_disppath(disp); + free_ccids(ccids); return 0; } diff --git a/spectro/dispsup.c b/spectro/dispsup.c index a27dab0..5751fed 100644 --- a/spectro/dispsup.c +++ b/spectro/dispsup.c @@ -42,18 +42,24 @@ #include "inst.h" #include "spyd2.h" #include "dispwin.h" -#include "dispsup.h" #include "webwin.h" +#include "ccast.h" +#include "ccwin.h" #ifdef NT # include "madvrwin.h" #endif + +#include "dispsup.h" #include "instappsup.h" +#undef DEBUG + #undef SIMPLE_MODEL /* Make fake device well behaved */ /* else has offsets, quantization, noise etc. */ #define DRIFT_IPERIOD 40 /* Number of samples between drift interpolation measurements */ #define DRIFT_EPERIOD 20 /* Number of samples between drift extrapolation measurements */ +#define DRIFT_MAXSECS 60 /* Number of seconds to time out previous drift value */ //#define DRIFT_IPERIOD 6 /* Test values */ //#define DRIFT_EPERIOD 3 @@ -68,6 +74,14 @@ #endif +#if defined(DEBUG) + +#define DBG(xxx) fprintf xxx ; +#define dbgo stderr +#else +#define DBG(xxx) +#endif /* DEBUG */ + /* -------------------------------------------------------- */ /* A default callback that can be provided as an argument to */ /* inst_handle_calibrate() to handle the display part of a */ @@ -79,7 +93,7 @@ inst_code setup_display_calibrate( disp_win_info *dwi /* Information to be able to open a display test patch */ ) { inst_code rv = inst_ok, ev; - dispwin *dw; /* Display window to display test patches on, NULL if none. */ +// dispwin *dw; /* Display window to display test patches on, NULL if none. */ a1logd(p->log,1,"setup_display_calibrate called with calc = 0x%x\n",calc); switch (calc) { @@ -103,6 +117,13 @@ inst_code setup_display_calibrate( a1logd(p->log,1,"inst_handle_calibrate failed to create test window 0x%x\n",inst_other_error); return inst_other_error; } + } else if (dwi->ccid != NULL) { + if ((dwi->_dw = new_ccwin(dwi->ccid, dwi->hpatsize, dwi->vpatsize, + dwi->ho, dwi->vo, 0, 0, NULL, NULL, dwi->out_tvenc, dwi->blackbg, + p->log->verb, p->log->debug)) == NULL) { + a1logd(p->log,1,"inst_handle_calibrate failed to create test window 0x%x\n",inst_other_error); + return inst_other_error; + } #ifdef NT } else if (dwi->madvrdisp != 0) { if ((dwi->_dw = new_madvrwin(dwi->hpatsize, dwi->vpatsize, @@ -127,6 +148,15 @@ inst_code setup_display_calibrate( dwi->_dw = dwi->dw; } + /* Set display rise & fall time more optimally */ + { + disptech dtech; + disptech_info *tinfo; + p->get_disptechi(p, &dtech, NULL, NULL); + tinfo = disptech_get_id(dtech); + dwi->dw->set_settling_delay(dwi->dw, tinfo->rise_time, tinfo->fall_time, -1.0); + } + if (calc == inst_calc_emis_white) { p->cal_gy_level = 1.0; dwi->_dw->set_color(dwi->_dw, 1.0, 1.0, 1.0); @@ -174,12 +204,14 @@ int disprd_calibration( icompath *ipath, /* Instrument path to open, &icomFakeDevice == fake */ flow_control fc, /* Serial flow control */ int dtype, /* Display type selection character */ +int sdtype, /* Spectro dtype, use dtype if -1 */ int docbid, /* NZ to only allow cbid dtypes */ int tele, /* NZ for tele mode, falls back to spot mode */ int nadaptive, /* NZ for non-adaptive mode */ int noinitcal, /* NZ to disable initial instrument calibration */ disppath *disp, /* display to calibrate. */ int webdisp, /* If nz, port number for web display */ +ccast_id *ccid, /* non-NULL for ChromeCast */ #ifdef NT int madvrdisp, /* NZ for MadVR display */ #endif @@ -205,6 +237,7 @@ a1log *log /* Verb, debug & error log */ memset((void *)&dwi, 0, sizeof(disp_win_info)); dwi.webdisp = webdisp; + dwi.ccid = ccid; #ifdef NT dwi.madvrdisp = madvrdisp; #endif @@ -280,6 +313,11 @@ a1log *log /* Verb, debug & error log */ } p->capabilities(p, &cap, &cap2, &cap3); + /* If this is a spectral instrument, and a different */ + /* spectral inst. dtype is supplied, then use it */ + if (IMODETST(cap, inst_mode_spectral) && sdtype >= 0) + dtype = sdtype; + /* Set the display type */ if (dtype != 0) { /* Given selection character */ if (cap2 & inst2_disptype) { @@ -297,7 +335,7 @@ a1log *log /* Verb, debug & error log */ return -1; } } else - printf("Display type ignored - instrument doesn't support display type\n"); + printf("Display type ignored - instrument doesn't support display type selection\n"); } /* Disable initial calibration of machine if selected */ @@ -310,7 +348,7 @@ a1log *log /* Verb, debug & error log */ } /* Do the calibration */ - rv = inst_handle_calibrate(p, inst_calt_available, inst_calc_none, setup_display_calibrate, &dwi); + rv = inst_handle_calibrate(p, inst_calt_available, inst_calc_none, setup_display_calibrate, &dwi, 0); setup_display_calibrate(p,inst_calc_none, &dwi); if (rv == inst_unsupported) { printf("No calibration available for instrument in this mode\n"); @@ -328,19 +366,55 @@ a1log *log /* Verb, debug & error log */ return 0; } -/* Set color to black after 50msec delay */ -int del_set_black(void *cx) { +/* The i1pro/munki seems to get into trouble if we do a meas_delay */ +/* on another thread - some conflict with the button monotitor thread. */ + +/* Set color to white after 200 msec delay */ +int del_set_white(void *cx) { disprd *p = (disprd *)cx; + inst_code ev; int rv; - msec_sleep(100); - if ((rv = p->dw->set_color(p->dw, 0.0, 0.0, 0.0)) != 0) { + msec_sleep(200); + + /* Start the patch change */ + /* This function may return some time before or after */ + /* the change actually arrives at the instrument. */ + if ((rv = p->dw->set_color(p->dw, 1.0, 1.0, 1.0)) != 0) { a1logd(p->log,1,"set_color() returned %d\n",rv); return 3; } + + /* Signal instrument that we've returned from the patch change function */ + /* (We're interested in any delay from this point in time until the */ + /* change arrives at the instrument, since this is the point that we */ + /* add extra delay at the end of the set_color() functions) */ + if ((ev = p->it->white_change(p->it, 0)) != inst_ok) { + a1logd(p->log,1,"white_change() returned 0x%x\n",ev); + return 3; + } + return 0; } +#ifdef NEVER +/* Implement scallout, which reports the XYZ measured */ +static void do_scallout(disprd *p, double *xyz) { + char *cmd; + + if (p->scallout == NULL) + return; + + if ((cmd = malloc(strlen(p->scallout) + 200)) == NULL) + error("Malloc of command string failed"); + + sprintf(cmd, "%s %f %f %f",p->scallout, xyz[0], xyz[1], xyz[2]); + if ((rv = system(cmd)) != 0) + error("System command '%s' failed with %d",cmd,rv); + free(cmd); +} +#endif + /* Take a series of readings from the display - implementation */ /* Return nz on fail/abort - see dispsup.h */ /* Use disprd_err() to interpret it */ @@ -377,39 +451,59 @@ static int disprd_read_imp( /* See if we should calibrate the display update */ if (!p->update_delay_set && (cap2 & inst2_meas_disp_update) != 0) { - int cdelay, mdelay; athread *th; + inst_code ev; + int mdelay; /* Display update delay*/ + int idelay = 0; /* Instrument reaction time */ + + /* Disable the update delay */ + p->dw->enable_update_delay(p->dw, 0); - /* Set white with a normal delay */ - if ((rv = p->dw->set_color(p->dw, 1.0, 1.0, 1.0)) != 0) { + /* Set black */ + if ((rv = p->dw->set_color(p->dw, 0.0, 0.0, 0.0)) != 0) { a1logd(p->log,1,"set_color() returned %d\n",rv); + p->dw->enable_update_delay(p->dw, 1); return 3; } + /* Wait for it to settle */ + msec_sleep(600); - /* Set a zero return delay */ - cdelay = p->dw->set_update_delay(p->dw, 0); + /* Init the white change stamp */ + p->it->white_change(p->it, 1); - /* Set black 50msec after this call */ - if ((th = new_athread(del_set_black, (void *)p)) == NULL) { + /* Set black 200 msec after this call and call white_change() */ + if ((th = new_athread(del_set_white, (void *)p)) == NULL) { a1logd(p->log,1,"failed to create thread to set_color()\n"); + p->dw->enable_update_delay(p->dw, 1); return 3; } + + /* If the test window is adding extra known delay after the patch */ + /* update, don't start looking for the transition too soon, */ + /* or we may exaust our 2.0 second scan window */ + if (p->dw->extra_update_delay > 0.2) { + a1logd(p->log,1,"update delay cal waiting %f secs to start scan\n", + p->dw->extra_update_delay - 0.2); + msec_sleep((int)((p->dw->extra_update_delay - 0.2) * 1000)); + } /* Measure the delay */ - if ((rv = p->it->meas_delay(p->it, &mdelay)) != inst_ok) { + if ((rv = p->it->meas_delay(p->it, &mdelay, &idelay)) != inst_ok) { a1logd(p->log,1,"warning, measure display update delay failed with '%s' (%s)\n", p->it->inst_interp_error(p->it, rv), p->it->interp_error(p->it, rv)); - p->dw->set_update_delay(p->dw, cdelay); /* Restore the default */ + mdelay = PATCH_UPDATE_DELAY; + /* idelay will be set to a default by meas_delay() */ } else { - mdelay -= 100; /* Correct for delay on set black */ - if (mdelay < 0) - mdelay = 0; a1logv(p->log, 1, "Measured display update delay of %d msec",mdelay); - mdelay += mdelay/2 + 100; - p->dw->set_update_delay(p->dw, mdelay); - a1logv(p->log, 1, ", using delay of %d msec\n",mdelay); + mdelay += mdelay/3 + 100; /* Margin - +30% + 100msec */ } + p->dw->set_update_delay(p->dw, mdelay, idelay); + a1logv(p->log, 1, ", using delay of %d msec & %d msec inst reaction\n",mdelay, idelay); p->update_delay_set = 1; + + /* Re-enable update delay */ + p->dw->enable_update_delay(p->dw, 1); + th->del(th); } @@ -537,11 +631,19 @@ static int disprd_read_imp( dwi.dw = p->dw; /* Set window to use */ printf("\nSample read failed because instruments needs calibration\n"); rv = inst_handle_calibrate(p->it, inst_calt_needed, inst_calc_none, - setup_display_calibrate, &dwi); + setup_display_calibrate, &dwi, 0); setup_display_calibrate(p->it, inst_calc_none, &dwi); if (rv != inst_ok) { /* Abort or fatal error */ return 1; } + + printf("Place instrument back on test window.\n"); + printf("Hit Esc or Q to give up, any other key to continue:"); fflush(stdout); + if ((ch = next_con_char()) == 0x1b || ch == 0x3 || ch == 'q' || ch == 'Q') { + printf("\n"); + return 1; + } + printf("\n"); continue; /* Deal with a bad sensor position */ @@ -594,8 +696,9 @@ static int disprd_read_imp( return 2; } } - continue; } + printf("\nSample read failed with unhandled error.\n"); + return 2; } else { break; /* Sucesful reading */ } @@ -654,41 +757,46 @@ static int disprd_read_drift( int off, poff; int boff, eoff, dno; /* b&w offsets and count */ -//printf("~1 DRIFT_EPERIOD %d, DRIFT_IPERIOD %d, npat %d\n",DRIFT_EPERIOD,DRIFT_IPERIOD,npat); + DBG((dbgo,"DRIFT_EPERIOD %d, DRIFT_IPERIOD %d, npat %d\n",DRIFT_EPERIOD,DRIFT_IPERIOD,npat)) /* Figure number and offset for b&w */ - if (p->bdrift == 0) { /* Must be just wdrift */ + if (p->bdrift == 0) { /* Must be just wdrift */ boff = eoff = 1; dno = 1; } else if (p->wdrift == 0) { /* Must be just bdrift */ boff = eoff = 0; dno = 1; - } else { /* Must be both */ - boff = eoff = 0; + } else { /* Must be both */ + boff = 0; + eoff = 1; dno = 2; } + /* Make sure these jave been initialised */ + p->last_bw[0].r = + p->last_bw[0].g = + p->last_bw[0].b = 0.0; + p->last_bw[1].r = + p->last_bw[1].g = + p->last_bw[1].b = 1.0; + /* If the last drift readings are invalid or too old, */ /* or if we will use interpolation, read b&w */ -#ifdef NEVER - printf("last_bw_v = %d (%d)\n",p->last_bw_v,p->last_bw_v == 0); - printf("npat = %d > %d, serno %d, last serno %d (%d)\n",npat, DRIFT_EPERIOD, p->serno,p->last_bw[eoff].serno,(npat > DRIFT_EPERIOD && p->serno > p->last_bw[eoff].serno)); - printf("serno - lastserno %d > %d (%d)\n",p->serno - p->last_bw[eoff].serno, DRIFT_EPERIOD,(p->serno - p->last_bw[eoff].serno) > DRIFT_EPERIOD); - printf("msec %d - last %d = %d > 10000 (%d)\n",msec_time(),p->last_bw[boff].msec,msec_time() - p->last_bw[boff].msec,(msec_time() - p->last_bw[eoff].msec) > 10000); -#endif /* NEVER */ +#ifdef DEBUG + DBG((dbgo,"last_bw_v = %d (%d)\n",p->last_bw_v,p->last_bw_v == 0)) + DBG((dbgo,"npat = %d > %d, serno %d, last serno %d (%d)\n",npat, DRIFT_EPERIOD, p->serno,p->last_bw[eoff].serno,(npat > DRIFT_EPERIOD && p->serno > p->last_bw[eoff].serno))) + DBG((dbgo,"serno - lastserno %d > %d (%d)\n",p->serno - p->last_bw[eoff].serno, DRIFT_EPERIOD,(p->serno - p->last_bw[eoff].serno) > DRIFT_EPERIOD)) + DBG((dbgo,"msec %d - last %d = %d > %d (%d)\n",msec_time(),p->last_bw[boff].msec,msec_time() - p->last_bw[boff].msec,DRIFT_MAXSECS * 1000, (msec_time() - p->last_bw[eoff].msec) > (DRIFT_MAXSECS * 1000))) +#endif /* DEBUG */ if (p->last_bw_v == 0 /* There are none */ || (npat > DRIFT_EPERIOD && p->serno > p->last_bw[eoff].serno) /* We will interpolate */ || (p->serno - p->last_bw[eoff].serno - dno) > DRIFT_EPERIOD /* extrapolate would be too far */ - || (msec_time() - p->last_bw[eoff].msec) > 10000) { /* The current is too long ago */ + || (msec_time() - p->last_bw[eoff].msec) > (DRIFT_MAXSECS * 1000)) { /* The current is too long ago */ + + DBG((dbgo,"Reading a beginning set of %d b/w drift compensation patches\n",dno)) + a1logd(p->log,2, "Reading a beginning set of %d b/w drift compensation patches\n",dno); -//printf("~1 refreshing last bw\n"); /* Read the black and/or white drift patch */ - p->last_bw[0].r = - p->last_bw[0].g = - p->last_bw[0].b = 0.0; - p->last_bw[1].r = - p->last_bw[1].g = - p->last_bw[1].b = 1.0; if ((rv = disprd_read_imp(p, &p->last_bw[boff], dno, spat, tpat, 0, 1, tc, 0)) != 0) { return rv; } @@ -709,7 +817,7 @@ static int disprd_read_drift( /* Figure out the number of drift samples we need */ ndrift += (npat-1)/DRIFT_IPERIOD; -//printf("~1 spat %d, npat = %d, tpat %d, ndrift = %d\n",spat,npat,tpat,ndrift); + DBG((dbgo,"spat %d, npat = %d, tpat %d, ndrift = %d\n",spat,npat,tpat,ndrift)) if ((dss = (dsamples *)calloc(sizeof(dsamples), ndrift)) == NULL) { a1logd(p->log,1, "malloc of %d dsamples failed\n",ndrift); @@ -718,7 +826,7 @@ static int disprd_read_drift( /* Set up bookeeping */ fper = (double)npat/(ndrift-1.0); -//printf("~1 fper = %f\n",fper); + DBG((dbgo,"fper = %f\n",fper)) foff = 0.0; for (poff = off = i = 0; i < ndrift; i++) { dss[i].off = off; @@ -729,7 +837,7 @@ static int disprd_read_drift( else dss[i].count = 0; poff = off; -//printf("~1 dss[%d] off = %d, count = %d\n",i, dss[i].off,dss[i].count); + DBG((dbgo,"dss[%d] off = %d, count = %d\n",i, dss[i].off,dss[i].count)) dss[i].dcols[0].r = dss[i].dcols[0].g = @@ -748,6 +856,8 @@ static int disprd_read_drift( dss[i].dcols[1] = p->last_bw[1]; } else { /* Read the black and/or white drift patchs before next batch */ + DBG((dbgo,"Reading another set of %d b/w drift compensation patches\n",dno)) + a1logd(p->log,2, "Reading another set of %d b/w drift compensation patches\n",dno); if ((rv = disprd_read_imp(p, &dss[i].dcols[boff], dno, spat+dss[i].off, tpat, 0, 1, tc, 0)) != 0) { free(dss); return rv; @@ -760,6 +870,8 @@ static int disprd_read_drift( } } /* Read the black and/or white drift patchs after last batch */ + DBG((dbgo,"Reading an end set of %d b/w drift compensation patches\n",dno)) + a1logd(p->log,2, "Reading an end set of %d b/w drift compensation patches\n",dno); if ((rv = disprd_read_imp(p, &dss[i].dcols[boff], dno, spat+dss[i].off-1, tpat, 0, 1, tc, 0)) != 0) { free(dss); return rv; @@ -773,10 +885,10 @@ static int disprd_read_drift( p->targ_w = p->last_bw[1]; p->targ_w_v = 1; -//printf("~1 ref b = %f %f %f\n", p->ref_bw[0].XYZ[0], p->ref_bw[0].XYZ[1], p->ref_bw[0].XYZ[2]); -//printf("~1 ref w = %f %f %f\n", p->ref_bw[1].XYZ[0], p->ref_bw[1].XYZ[1], p->ref_bw[1].XYZ[2]); -//printf("~1 ndrift-1 b = %f %f %f\n", dss[ndrift-1].dcols[0].XYZ[0], dss[ndrift-1].dcols[0].XYZ[1], dss[ndrift-1].dcols[0].XYZ[2]); -//printf("~1 ndrift-1 w = %f %f %f\n", dss[ndrift-1].dcols[1].XYZ[0], dss[ndrift-1].dcols[1].XYZ[1], dss[ndrift-1].dcols[1].XYZ[2]); + DBG((dbgo,"ref b = %f %f %f\n", p->ref_bw[0].XYZ[0], p->ref_bw[0].XYZ[1], p->ref_bw[0].XYZ[2])) + DBG((dbgo,"ref w = %f %f %f\n", p->ref_bw[1].XYZ[0], p->ref_bw[1].XYZ[1], p->ref_bw[1].XYZ[2])) + DBG((dbgo,"ndrift-1 b = %f %f %f\n", dss[ndrift-1].dcols[0].XYZ[0], dss[ndrift-1].dcols[0].XYZ[1], dss[ndrift-1].dcols[0].XYZ[2])) + DBG((dbgo,"ndrift-1 w = %f %f %f\n", dss[ndrift-1].dcols[1].XYZ[0], dss[ndrift-1].dcols[1].XYZ[1], dss[ndrift-1].dcols[1].XYZ[2])) /* Apply the drift compensation using interpolation */ for (i = 0; i < (ndrift-1); i++) { @@ -785,9 +897,11 @@ static int disprd_read_drift( int k = dss[i].off + j; double we; /* Interpolation weight of eairlier value */ col bb, ww; /* Interpolated black and white */ -//double uXYZ[3]; -//icmCpy3(uXYZ, cols[k].XYZ); -//printf("~1 patch %d = %f %f %f\n", k, cols[k].XYZ[0], cols[k].XYZ[1], cols[k].XYZ[2]); +#ifdef DEBUG + double uXYZ[3]; + icmCpy3(uXYZ, cols[k].XYZ); + DBG((dbgo,"patch %d = %f %f %f\n", k, cols[k].XYZ[0], cols[k].XYZ[1], cols[k].XYZ[2])) +#endif if (p->bdrift) { we = (double)(dss[i+1].dcols[0].msec - cols[k].msec)/ (double)(dss[i+1].dcols[0].msec - dss[i].dcols[0].msec); @@ -797,7 +911,7 @@ static int disprd_read_drift( bb.XYZ[e] = we * dss[i].dcols[0].XYZ[e] + (1.0 - we) * dss[i+1].dcols[0].XYZ[e]; } -//printf("~1 bb = %f %f %f\n", bb.XYZ[0], bb.XYZ[1], bb.XYZ[2]); + DBG((dbgo,"bb = %f %f %f\n", bb.XYZ[0], bb.XYZ[1], bb.XYZ[2])) } if (cols[k].sp.spec_n > 0) { for (e = 0; e < cols[k].sp.spec_n; e++) { @@ -815,7 +929,7 @@ static int disprd_read_drift( ww.XYZ[e] = we * dss[i].dcols[1].XYZ[e] + (1.0 - we) * dss[i+1].dcols[1].XYZ[e]; } -//printf("~1 ww = %f %f %f\n", ww.XYZ[0], ww.XYZ[1], ww.XYZ[2]); + DBG((dbgo,"ww = %f %f %f\n", ww.XYZ[0], ww.XYZ[1], ww.XYZ[2])) } if (cols[k].sp.spec_n > 0) { for (e = 0; e < cols[k].sp.spec_n; e++) { @@ -832,7 +946,7 @@ static int disprd_read_drift( for (e = 0; e < 3; e++) { bb.XYZ[e] *= p->ref_bw[1].XYZ[e]/ww.XYZ[e]; } -//printf("~1 wcomp bb = %f %f %f\n", bb.XYZ[0], bb.XYZ[1], bb.XYZ[2]); + DBG((dbgo,"wcomp bb = %f %f %f\n", bb.XYZ[0], bb.XYZ[1], bb.XYZ[2])) } if (cols[k].sp.spec_n > 0) { for (e = 0; e < cols[k].sp.spec_n; e++) { @@ -846,7 +960,7 @@ static int disprd_read_drift( for (e = 0; e < 3; e++) { cols[k].XYZ[e] += p->ref_bw[0].XYZ[e] - bb.XYZ[e]; } -//printf("~1 bcomp patch = %f %f %f\n", cols[k].XYZ[0], cols[k].XYZ[1], cols[k].XYZ[2]); + DBG((dbgo,"bcomp patch = %f %f %f\n", cols[k].XYZ[0], cols[k].XYZ[1], cols[k].XYZ[2])) } if (cols[k].sp.spec_n > 0) { for (e = 0; e < cols[k].sp.spec_n; e++) { @@ -860,7 +974,7 @@ static int disprd_read_drift( for (e = 0; e < 3; e++) { cols[k].XYZ[e] *= p->targ_w.XYZ[e]/ww.XYZ[e]; } -//printf("~1 wcomp patch = %f %f %f\n", cols[k].XYZ[0], cols[k].XYZ[1], cols[k].XYZ[2]); + DBG((dbgo,"wcomp patch = %f %f %f\n", cols[k].XYZ[0], cols[k].XYZ[1], cols[k].XYZ[2])) } if (cols[k].sp.spec_n > 0) { for (e = 0; e < cols[k].sp.spec_n; e++) { @@ -868,7 +982,7 @@ static int disprd_read_drift( } } } -//printf("~1 %d: drift change %f DE\n",k,icmXYZLabDE(&icmD50, uXYZ, cols[k].XYZ)); + DBG((dbgo,"%d: drift change %f DE\n",k,icmXYZLabDE(&icmD50, uXYZ, cols[k].XYZ))) } } free(dss); @@ -876,7 +990,7 @@ static int disprd_read_drift( /* Else too small a batch, use extrapolation from the last b&w */ } else { -//printf("~1 doing small number of readings\n"); + DBG((dbgo,"doing small number of readings\n")) /* Read the small number of patches */ if ((rv = disprd_read_imp(p, cols,npat,spat,tpat,acr,0,tc,0)) != 0) return rv; @@ -885,30 +999,32 @@ static int disprd_read_drift( /* Set the white drift reference to be the last one */ p->targ_w = p->last_bw[1]; p->targ_w_v = 1; -//printf("~1 set white drift target\n"); + DBG((dbgo,"set white drift target\n")) } -//printf("~1 ref b = %f %f %f\n", p->ref_bw[0].XYZ[0], p->ref_bw[0].XYZ[1], p->ref_bw[0].XYZ[2]); -//printf("~1 ref w = %f %f %f\n", p->ref_bw[1].XYZ[0], p->ref_bw[1].XYZ[1], p->ref_bw[1].XYZ[2]); -//printf("~1 last b = %f %f %f\n", p->last_bw[0].XYZ[0], p->last_bw[0].XYZ[1], p->last_bw[0].XYZ[2]); -//printf("~1 last w = %f %f %f\n", p->last_bw[1].XYZ[0], p->last_bw[1].XYZ[1], p->last_bw[1].XYZ[2]); -//printf("~1 target w = %f %f %f\n", p->targ_w.XYZ[0], p->targ_w.XYZ[1], p->targ_w.XYZ[2]); + DBG((dbgo,"ref b = %f %f %f\n", p->ref_bw[0].XYZ[0], p->ref_bw[0].XYZ[1], p->ref_bw[0].XYZ[2])) + DBG((dbgo,"ref w = %f %f %f\n", p->ref_bw[1].XYZ[0], p->ref_bw[1].XYZ[1], p->ref_bw[1].XYZ[2])) + DBG((dbgo,"last b = %f %f %f\n", p->last_bw[0].XYZ[0], p->last_bw[0].XYZ[1], p->last_bw[0].XYZ[2])) + DBG((dbgo,"last w = %f %f %f\n", p->last_bw[1].XYZ[0], p->last_bw[1].XYZ[1], p->last_bw[1].XYZ[2])) + DBG((dbgo,"target w = %f %f %f\n", p->targ_w.XYZ[0], p->targ_w.XYZ[1], p->targ_w.XYZ[2])) /* Apply the drift compensation using extrapolation */ for (j = 0; j < npat; j++) { double we; /* Interpolation weight of eairlier value */ col bb, ww; /* Interpolated black and white */ -//printf("~1 patch %d = %f %f %f\n", j, cols[j].XYZ[0], cols[j].XYZ[1], cols[j].XYZ[2]); -//double uXYZ[3]; -//icmCpy3(uXYZ, cols[j].XYZ); +#ifdef DEBUG + double uXYZ[3]; + DBG((dbgo,"patch %d = %f %f %f\n", j, cols[j].XYZ[0], cols[j].XYZ[1], cols[j].XYZ[2])) + icmCpy3(uXYZ, cols[j].XYZ); +#endif if (p->bdrift) { bb = p->last_bw[0]; -//printf("~1 bb = %f %f %f\n", bb.XYZ[0], bb.XYZ[1], bb.XYZ[2]); + DBG((dbgo,"bb = %f %f %f\n", bb.XYZ[0], bb.XYZ[1], bb.XYZ[2])) } if (p->wdrift) { ww = p->last_bw[1]; -//printf("~1 ww = %f %f %f\n", ww.XYZ[0], ww.XYZ[1], ww.XYZ[2]); + DBG((dbgo,"ww = %f %f %f\n", ww.XYZ[0], ww.XYZ[1], ww.XYZ[2])) } if (p->bdrift) { @@ -918,7 +1034,7 @@ static int disprd_read_drift( for (e = 0; e < 3; e++) { bb.XYZ[e] *= p->ref_bw[1].XYZ[e]/ww.XYZ[e]; } -//printf("~1 wcomp bb = %f %f %f\n", bb.XYZ[0], bb.XYZ[1], bb.XYZ[2]); + DBG((dbgo,"wcomp bb = %f %f %f\n", bb.XYZ[0], bb.XYZ[1], bb.XYZ[2])) } if (cols[j].sp.spec_n > 0) { for (e = 0; e < cols[j].sp.spec_n; e++) { @@ -932,7 +1048,7 @@ static int disprd_read_drift( for (e = 0; e < 3; e++) { cols[j].XYZ[e] += p->ref_bw[0].XYZ[e] - bb.XYZ[e]; } -//printf("~1 bcomp patch = %f %f %f\n", cols[j].XYZ[0], cols[j].XYZ[1], cols[j].XYZ[2]); + DBG((dbgo,"bcomp patch = %f %f %f\n", cols[j].XYZ[0], cols[j].XYZ[1], cols[j].XYZ[2])) } if (cols[j].sp.spec_n > 0) { for (e = 0; e < cols[j].sp.spec_n; e++) { @@ -946,7 +1062,7 @@ static int disprd_read_drift( for (e = 0; e < 3; e++) { cols[j].XYZ[e] *= p->targ_w.XYZ[e]/ww.XYZ[e]; } -//printf("~1 wcomp patch = %f %f %f\n", cols[j].XYZ[0], cols[j].XYZ[1], cols[j].XYZ[2]); + DBG((dbgo,"wcomp patch = %f %f %f\n", cols[j].XYZ[0], cols[j].XYZ[1], cols[j].XYZ[2])) } if (cols[j].sp.spec_n > 0) { for (e = 0; e < cols[j].sp.spec_n; e++) { @@ -954,7 +1070,7 @@ static int disprd_read_drift( } } } -//printf("~1 %d: drift change %f DE\n",j,icmXYZLabDE(&icmD50, uXYZ, cols[j].XYZ)); + DBG((dbgo,"%d: drift change %f DE\n",j,icmXYZLabDE(&icmD50, uXYZ, cols[j].XYZ))) } } @@ -1178,7 +1294,7 @@ int disprd_ambient( dwi.dw = p->dw; /* Set window to use */ printf("\nSample read failed because instruments needs calibration\n"); rv = inst_handle_calibrate(p->it, inst_calt_needed, inst_calc_none, - setup_display_calibrate, &dwi); + setup_display_calibrate, &dwi, 0); setup_display_calibrate(p->it,inst_calc_none, &dwi); if (rv != inst_ok) { /* Abort or fatal error */ return 1; @@ -1281,10 +1397,10 @@ static int disprd_fake_read( int tc, /* If nz, termination key */ instClamping clamp /* NZ if clamp XYZ/Lab to be +ve */ ) { - icmXYZNumber white; /* White point */ - icmXYZNumber red; /* Red colorant */ - icmXYZNumber green; /* Green colorant */ - icmXYZNumber blue; /* Blue colorant */ + double white[3]; /* White point */ + double red[3]; /* Red colorant */ + double green[3]; /* Green colorant */ + double blue[3]; /* Blue colorant */ double doff[3]; /* device offsets */ double mat[3][3]; /* Destination matrix */ double xmat[3][3]; /* Extra matrix */ @@ -1302,37 +1418,36 @@ static int disprd_fake_read( ttpat = npat; /* Setup fake device */ - white.X = br * 0.955; /* Somewhere between D50 and D65 */ - white.Y = br * 1.00; - white.Z = br * 0.97; - red.X = br * 0.41; - red.Y = br * 0.21; - red.Z = br * 0.02; - green.X = br * 0.30; - green.Y = br * 0.55; - green.Z = br * 0.15; - blue.X = br * 0.15; - blue.Y = br * 0.10; - blue.Z = br * 0.97; + white[0] = br * 0.955; /* Somewhere between D50 and D65 */ + white[1] = br * 1.00; + white[2] = br * 0.97; + red[0] = br * 0.41; + red[1] = br * 0.21; + red[2] = br * 0.02; + green[0] = br * 0.30; + green[1] = br * 0.55; + green[2] = br * 0.15; + blue[0] = br * 0.15; + blue[1] = br * 0.10; + blue[2] = br * 0.97; #ifdef SIMPLE_MODEL doff[0] = doff[1] = doff[2] = 0.0; /* Input offset */ ooff[0] = ooff[1] = ooff[2] = 0.0; /* Output offset */ #else - /* Input offset, equivalent to RGB offsets having various values */ - doff[0] = 0.05; - doff[1] = 0.06; - doff[2] = 0.07; + /* Input offset added to RGB, equivalent to RGB offsets having various values */ + doff[0] = -0.03; + doff[1] = 0.07; + doff[2] = -0.08; + /* Output offset - equivalent to flare [range 0.0 - 1.0] */ ooff[0] = 0.03; ooff[1] = 0.04; ooff[2] = 0.09; #endif - if (icmRGBprim2matrix(white, red, green, blue, mat)) + if (icmRGBXYZprim2matrix(red, green, blue, white, mat)) error("Fake read unexpectedly got singular matrix\n"); - icmTranspose3x3(mat, mat); /* Convert [RGB][XYZ] to [XYZ][RGB] */ - icmSetUnity3x3(xmat); if (p->fake2 == 1) { @@ -1816,6 +1931,7 @@ static int config_inst_displ(disprd *p) { inst2_capability cap2; inst3_capability cap3; inst_mode mode = 0; + int dtype = p->dtype; int rv; p->it->capabilities(p->it, &cap, &cap2, &cap3); @@ -1887,12 +2003,17 @@ static int config_inst_displ(disprd *p) { p->spectral = 0; } + /* If this is a spectral instrument, and a different */ + /* spectral inst. dtype is supplied, then use it */ + if (IMODETST(cap, inst_mode_spectral) && p->sdtype >= 0) + dtype = p->sdtype; + /* Set the display type */ - if (p->dtype != 0) { + if (dtype != 0) { if (cap2 & inst2_disptype) { int ix; - if ((ix = inst_get_disptype_index(p->it, p->dtype, p->docbid)) < 0) { - a1logd(p->log,1,"Display type selection '%c' is not valid for instrument\n",p->dtype); + if ((ix = inst_get_disptype_index(p->it, dtype, p->docbid)) < 0) { + a1logd(p->log,1,"Display type selection '%c' is not valid for instrument\n",dtype); if (p->docbid) return 16; return 15; @@ -1903,14 +2024,9 @@ static int config_inst_displ(disprd *p) { return 15; } } else - printf("Display type ignored - instrument doesn't support display type\n"); + printf("Display type ignored - instrument doesn't support display type selection\n"); } - /* Get the refresh mode and cbid */ - if (cap2 & inst2_disptype) { - p->it->get_set_opt(p->it, inst_opt_get_dtinfo, &p->refrmode, &p->cbid); - } - /* Disable initcalibration of machine if selected */ if (p->noinitcal != 0) { if ((rv = p->it->get_set_opt(p->it,inst_opt_noinitcalib, 0)) != inst_ok) { @@ -1934,17 +2050,21 @@ static int config_inst_displ(disprd *p) { } p->it->capabilities(p->it, &cap, &cap2, &cap3); + /* Set calibration matrix */ if (p->ccmtx != NULL) { if ((cap2 & inst2_ccmx) == 0) { a1logd(p->log,1,"Instrument doesn't support ccmx correction\n"); return 10; } - if ((rv = p->it->col_cor_mat(p->it, p->ccmtx)) != inst_ok) { + if ((rv = p->it->col_cor_mat(p->it, p->cc_dtech, p->cc_cbid, p->ccmtx)) != inst_ok) { a1logd(p->log,1,"col_cor_mat returned '%s' (%s)\n", p->it->inst_interp_error(p->it, rv), p->it->interp_error(p->it, rv)); return 2; } } + + /* Get the refresh mode and cbid */ + p->it->get_disptechi(p->it, NULL, &p->refrmode, &p->cbid); /* Observer */ if ((cap2 & inst2_ccss) != 0 && p->obType != icxOT_default) { @@ -1969,7 +2089,7 @@ static int config_inst_displ(disprd *p) { return 11; } - if ((rv = p->it->col_cal_spec_set(p->it, p->sets, p->no_sets)) != inst_ok) { + if ((rv = p->it->col_cal_spec_set(p->it, p->cc_dtech, p->sets, p->no_sets)) != inst_ok) { a1logd(p->log,1,"col_cal_spec_set returned '%s' (%s)\n", p->it->inst_interp_error(p->it, rv), p->it->interp_error(p->it, rv)); return 2; @@ -2012,6 +2132,7 @@ int *errc, /* Error code. May be NULL (could use log for this instead?) icompath *ipath, /* Instrument path to open, &icomFakeDevice == fake */ flow_control fc, /* Flow control */ int dtype, /* Display type selection character */ +int sdtype, /* Spectro dtype, use dtype if -1 */ int docbid, /* NZ to only allow cbid dtypes */ int tele, /* NZ for tele mode. Falls back to display mode */ int nadaptive, /* NZ for non-adaptive mode */ @@ -2032,15 +2153,19 @@ int out_tvenc, /* 1 = use RGB Video Level encoding */ int blackbg, /* NZ if whole screen should be filled with black */ int override, /* Override_redirect on X11 */ int webdisp, /* If nz, port number for web color display */ +ccast_id *ccid, /* non-NULL for ChromeCast */ #ifdef NT int madvrdisp, /* NZ for MadVR display */ #endif char *ccallout, /* Shell callout on set color */ char *mcallout, /* Shell callout on measure color (forced fake) */ +//char *scallout, /* Shell callout on results of measure color */ double hpatsize, /* Size of dispwin */ double vpatsize, double ho, /* Horizontal offset */ double vo, /* Vertical offset */ +disptech cc_dtech, /* Display tech to go with ccmtx or sets */ +int cc_cbid, /* cbid to go with ccmtx or sets */ double ccmtx[3][3], /* Colorimeter Correction matrix, NULL if none */ xspect *sets, /* CCSS Set of sample spectra, NULL if none */ int no_sets, /* CCSS Number on set, 0 if none */ @@ -2074,7 +2199,9 @@ a1log *log /* Verb, debug & error log */ p->ambient = disprd_ambient; p->fake_name = fake_name; - p->ccmtx = ccmtx; + p->cc_dtech = cc_dtech; + p->cc_cbid = cc_cbid; + p->ccmtx = ccmtx; /* CCMX */ p->sets = sets; p->no_sets = no_sets; /* CCSS */ p->spectral = spectral; @@ -2083,6 +2210,7 @@ a1log *log /* Verb, debug & error log */ p->bdrift = bdrift; p->wdrift = wdrift; p->dtype = dtype; + p->sdtype = sdtype; p->docbid = docbid; p->refrmode = -1; /* Unknown */ p->cbid = 0; /* Unknown */ @@ -2095,6 +2223,7 @@ a1log *log /* Verb, debug & error log */ if (mcallout != NULL) ipath = &icomFakeDevice; /* Force fake device */ p->mcallout = mcallout; +// p->scallout = scallout; p->ipath = ipath; p->br = baud_19200; p->fc = fc; @@ -2218,7 +2347,7 @@ a1log *log /* Verb, debug & error log */ } if (webdisp != 0) { - /* Open web display */ + /* Open web display - no black bg since we assume window only */ if ((p->dw = new_webwin(webdisp, hpatsize, vpatsize, ho, vo, 0, native, noramdac, nocm, uout_tvenc, 0, p->log->verb, p->log->debug)) == NULL) { a1logd(log,1,"new_disprd failed because new_webwin failed\n"); @@ -2226,6 +2355,14 @@ a1log *log /* Verb, debug & error log */ if (errc != NULL) *errc = 3; return NULL; } + } else if (ccid != NULL) { + if ((p->dw = new_ccwin(ccid, hpatsize, vpatsize, ho, vo, 0, native, noramdac, nocm, + uout_tvenc, 0, p->log->verb, p->log->debug)) == NULL) { + a1logd(log,1,"new_disprd failed because new_ccwin('%s') failed\n",ccid->name); + p->del(p); + if (errc != NULL) *errc = 3; + return NULL; + } #ifdef NT } else if (madvrdisp != 0) { if (out_tvenc) { @@ -2236,7 +2373,7 @@ a1log *log /* Verb, debug & error log */ } if ((p->dw = new_madvrwin(hpatsize, vpatsize, ho, vo, 0, native, noramdac, nocm, out_tvenc, - blackbg, p->log->verb, p->log->debug)) == NULL) { + 0, p->log->verb, p->log->debug)) == NULL) { a1logd(log,1,"new_disprd failed because new_madvrwin failed\n"); p->del(p); if (errc != NULL) *errc = 3; @@ -2323,7 +2460,7 @@ a1log *log /* Verb, debug & error log */ dwi.dw = p->dw; /* Set window to use */ rv = inst_handle_calibrate(p->it, inst_calt_needed, inst_calc_none, - setup_display_calibrate, &dwi); + setup_display_calibrate, &dwi, 0); setup_display_calibrate(p->it,inst_calc_none, &dwi); printf("\n"); if (rv != inst_ok) { /* Abort or fatal error */ @@ -2338,7 +2475,7 @@ a1log *log /* Verb, debug & error log */ } } - if (!p->noinitplace) { + if (p->it != NULL && !p->noinitplace) { inst2_capability cap2; p->it->capabilities(p->it, NULL, &cap2, NULL); @@ -2369,26 +2506,38 @@ a1log *log /* Verb, debug & error log */ printf("\n"); } - if (webdisp == 0 -#ifdef NT - && madvrdisp == 0 -#endif - ) { - /* Close the positioning window */ - if (p->dw != NULL) { - p->dw->del(p->dw); - } - - /* Open display window again for measurement */ - if ((p->dw = new_dispwin(disp, hpatsize, vpatsize, ho, vo, 0, native, noramdac, nocm, - uout_tvenc, blackbg, override, p->log->debug)) == NULL) { - a1logd(log,1,"new_disprd failed new_dispwin failed\n"); - p->del(p); - if (errc != NULL) *errc = 3; - return NULL; + /* All except web disp can have a black backround when running tests */ + if (webdisp == 0 && blackbg) { + + if (p->dw->set_bg(p->dw, blackbg)) { /* Have to re-create window */ + + /* Close the positioning window */ + if (p->dw != NULL) { + p->dw->del(p->dw); + } + + /* We happen to know that only the default dispwin needs re-creating */ + + /* Open display window again for measurement */ + if ((p->dw = new_dispwin(disp, hpatsize, vpatsize, ho, vo, 0, native, noramdac, nocm, + uout_tvenc, blackbg, override, p->log->debug)) == NULL) { + a1logd(log,1,"new_disprd failed new_dispwin failed\n"); + p->del(p); + if (errc != NULL) *errc = 3; + return NULL; + } } } + /* Set display rise & fall time more optimally */ + if (p->it != NULL) { + disptech dtech; + disptech_info *tinfo; + p->it->get_disptechi(p->it, &dtech, NULL, NULL); + tinfo = disptech_get_id(dtech); + p->dw->set_settling_delay(p->dw, tinfo->rise_time, tinfo->fall_time, -1.0); + } + /* Set color change callout */ if (ccallout) { p->dw->set_callout(p->dw, ccallout); diff --git a/spectro/dispsup.h b/spectro/dispsup.h index 1d291af..e8c3f76 100644 --- a/spectro/dispsup.h +++ b/spectro/dispsup.h @@ -15,9 +15,12 @@ * see the License.txt file for licencing details. */ -/* A helper function to handle presenting a display test patch */ +/* Helper functions to handle presenting a display test patch */ + +/* Struct used for calibration */ struct _disp_win_info { int webdisp; /* nz if web display is to be used */ + ccast_id *ccid; /* non-NULL for ChromeCast */ #ifdef NT int madvrdisp; /* NZ for MadVR display */ #endif @@ -47,12 +50,14 @@ int disprd_calibration( icompath *ipath, /* Instrument path to open, &icomFakeDevice == fake */ flow_control fc, /* Serial flow control */ int dtype, /* Display type, 0 = unknown, 1 = CRT, 2 = LCD */ +int sdtype, /* Spectro dtype, use dtype if -1 */ int docbid, /* NZ to only allow cbid dtypes */ int tele, /* NZ for tele mode */ int nadaptive, /* NZ for non-adaptive mode */ int noinitcal, /* NZ to disable initial instrument calibration */ disppath *screen, /* Screen to calibrate. */ int webdisp, /* If nz, port number for web display */ +ccast_id *ccid, /* non-NULL for ChromeCast */ #ifdef NT int madvrdisp, /* NZ for MadVR display */ #endif @@ -107,19 +112,23 @@ struct _disprd { int ncal; /* Number of entries used in cal[] */ icmLuBase *fake_lu; char *mcallout; /* fake instrument shell callout */ +// char *scallout; /* measurement XYZ value callout */ icompath *ipath; /* Instrument path to open, &icomFakeDevice == fake */ baud_rate br; flow_control fc; inst *it; /* Instrument */ int dtype; /* Display type, 0 = unknown, 1 = CRT, 2 = LCD */ + int sdtype; /* Spectro dtype */ int docbid; /* NZ to only allow cbid dtypes */ int refrmode; /* Refresh display mode, -1 if unknow, 0 = if no, 1 if yes */ - int cbid; /* The Calibration Base display mode ID, 0 if unknown */ + int cbid; /* The current Calibration Base display mode ID, 0 if unknown */ int tele; /* NZ for tele mode */ int nadaptive; /* NZ for non-adaptive mode */ int highres; /* Use high res mode if available */ double refrate; /* If != 0.0, set display refresh rate calibration */ int update_delay_set; /* NZ if we've calibrated the disp. update delay, or tried and failed */ + disptech cc_dtech; /* Display tech used with ccmtx or sets */ + int cc_cbid; /* cbid to be used with ccmtx * or sets */ double (*ccmtx)[3]; /* Colorimeter Correction Matrix, NULL if none */ icxObserverType obType; /* CCSS Observer */ xspect *custObserver; /* CCSS Optional custom observer */ @@ -222,6 +231,7 @@ int *errc, /* Error code. May be NULL */ icompath *ipath, /* Instrument path to open, &icomFakeDevice == fake */ flow_control fc, /* Serial flow control */ int dtype, /* Display type, 0 = unknown, 1 = CRT, 2 = LCD */ +int sdtype, /* Spectro dtype, use dtype if -1 */ int docbid, /* NZ to only allow cbid dtypes */ int tele, /* NZ for tele mode */ int nadaptive, /* NZ for non-adaptive mode */ @@ -242,15 +252,19 @@ int out_tvenc, /* 1 = use RGB Video Level encoding */ int blackbg, /* NZ if whole screen should be filled with black */ int override, /* Override_redirect on X11 */ int webdisp, /* If nz, port number for web display */ +ccast_id *ccid, /* non-NULL for ChromeCast */ #ifdef NT int madvrdisp, /* NZ for MadVR display */ #endif char *ccallout, /* Shell callout on set color */ char *mcallout, /* Shell callout on measure color (forced fake) */ +//char *scallout, /* Shell callout on results of measure color */ double hpatsize, /* Size of dispwin */ double vpatsize, double ho, /* Horizontal offset */ double vo, /* Vertical offset */ +disptech cc_dtech, /* Display tech to go with ccmtx or sets, disptech_unknown if not used */ +int cc_cbid, /* cbid to go with ccmtx or sets, 0 if not used */ double ccmtx[3][3], /* Colorimeter Correction matrix, NULL if none */ xspect *sets, /* CCSS Set of sample spectra, NULL if none */ int no_sets, /* CCSS Number on set, 0 if none */ diff --git a/spectro/disptechs.c b/spectro/disptechs.c new file mode 100644 index 0000000..05b9045 --- /dev/null +++ b/spectro/disptechs.c @@ -0,0 +1,726 @@ + + /* Standardized display types */ + + /* Standardized display types for use with libinst */ + +/* + * Argyll Color Correction System + * + * Author: Graeme W. Gill + * Date: 14/5/2014 + * + * Copyright 2014 Graeme W. Gill + * All rights reserved. + * + * This material is licenced under the GNU GENERAL PUBLIC LICENSE Version 2 or later :- + * see the License2.txt file for licencing details. + * + */ + +#include +#include +#include +#include +#include +#ifndef SALONEINSTLIB +#include "copyright.h" +#include "aconfig.h" +#include "icc.h" +#else +#include "sa_config.h" +#endif /* !SALONEINSTLIB */ +#include "numsup.h" +#include "conv.h" +#include "disptechs.h" + +/* Other selection characters used: + + "n" Non-refresh (Generic) + "r" Refresh (Generic) + "F" Factory base calibration + "R" Raw sensor values + "g" Generic + + oemarch: + "C" CMF + "U" Custom + kleink10: + "P" DLP projector using ambient + "E" SMPTE C + "P" Klein DLP Lux + "d" Klein LED Bk LCD + "O" Sony EL OLED + "z" Eizo CG LCD + */ + +static disptech_info disptech_info_array[] = { + { + disptech_none, /* Not applicable entry. Must be first */ + "None", /* because disptech_get_list() assumes so */ + "None", + 0, + 0.001, + 0.001, + NULL + }, + + { + disptech_crt, + "CRT", + "CRT", + 1, + DISPTECH_CRT_RISE, + DISPTECH_CRT_FALL, + "c" + }, + { + disptech_plasma, + "Plasma", + "Plasma", + 1, + DISPTECH_CRT_RISE, + DISPTECH_CRT_FALL, + "m" + }, + + { + disptech_lcd, + "LCD", + "LCD", + 0, + DISPTECH_LCD_RISE, + DISPTECH_LCD_FALL, + "l" + }, + { + disptech_lcd_ccfl, + "LCD CCFL", + "LCD CCFL", + 0, + DISPTECH_LCD_RISE, + DISPTECH_LCD_FALL, + "l" + }, + { + disptech_lcd_ccfl_ips, + "LCD CCFL IPS", + "LCD CCFL IPS", + 0, + DISPTECH_LCD_RISE, + DISPTECH_LCD_FALL, + "l" + }, + { disptech_lcd_ccfl_vpa, + "LCD CCFL VPA", + "LCD CCFL VPA", + 0, + DISPTECH_LCD_RISE, + DISPTECH_LCD_FALL, + "l" + }, + { disptech_lcd_ccfl_tft, + "LCD CCFL TFT", + "LCD CCFL TFT", + 0, + DISPTECH_LCD_RISE, + DISPTECH_LCD_FALL, + "l" + + }, + { disptech_lcd_ccfl_wg, + "LCD CCFL Wide Gamut", + "LCD CCFL Wide Gamut", + 0, + DISPTECH_LCD_RISE, + DISPTECH_LCD_FALL, + "L" + }, + { disptech_lcd_ccfl_wg_ips, + "LCD CCFL Wide Gamut IPS", + "LCD CCFL Wide Gamut IPS", + 0, + DISPTECH_LCD_RISE, + DISPTECH_LCD_FALL, + "L" + }, + { disptech_lcd_ccfl_wg_vpa, + "LCD CCFL Wide Gamut VPA", + "LCD CCFL Wide Gamut VPA", + 0, + DISPTECH_LCD_RISE, + DISPTECH_LCD_FALL, + "L" + }, + { disptech_lcd_ccfl_wg_tft, + "LCD CCFL Wide Gamut TFT", + "LCD CCFL Wide Gamut TFT", + 0, + DISPTECH_LCD_RISE, + DISPTECH_LCD_FALL, + "L" + }, + { disptech_lcd_wled, + "LCD White LED", + "LCD White LED", + 0, + DISPTECH_LCD_RISE, + DISPTECH_LCD_FALL, + "e" + }, + { disptech_lcd_wled_ips, + "LCD White LED IPS", + "LCD White LED IPS", + 0, + DISPTECH_LCD_RISE, + DISPTECH_LCD_FALL, + "e" + }, + { disptech_lcd_wled_vpa, + "LCD White LED VPA", + "LCD White LED VPA", + 0, + DISPTECH_LCD_RISE, + DISPTECH_LCD_FALL, + "e" + }, + { disptech_lcd_wled_tft, + "LCD White LED TFT", + "LCD White LED TFT", + 0, + DISPTECH_LCD_RISE, + DISPTECH_LCD_FALL, + "e" + }, + { disptech_lcd_rgbled, + "LCD RGB LED", + "LCD RGB LED", + 0, + DISPTECH_LCD_RISE, + DISPTECH_LCD_FALL, + "b" + }, + { disptech_lcd_rgbled_ips, + "LCD RGB LED IPS", + "LCD RGB LED IPS", + 0, + DISPTECH_LCD_RISE, + DISPTECH_LCD_FALL, + "b" + }, + { disptech_lcd_rgbled_vpa, + "LCD RGB LED VPA", + "LCD RGB LED VPA", + 0, + DISPTECH_LCD_RISE, + DISPTECH_LCD_FALL, + "b" + }, + { disptech_lcd_rgbled_tft, + "LCD RGB LED TFT", + "LCD RGB LED TFT", + 0, + DISPTECH_LCD_RISE, + DISPTECH_LCD_FALL, + "b" + + }, + { disptech_lcd_rgledp, + "LCD RG Phosphor", + "LCD RG Phosphor", + 0, + DISPTECH_LCD_RISE, + DISPTECH_LCD_FALL, + "h" + }, + { disptech_lcd_rgledp_ips, + "LCD RG Phosphor IPS", + "LCD RG Phosphor IPS", + 0, + DISPTECH_LCD_RISE, + DISPTECH_LCD_FALL, + "h" + }, + { disptech_lcd_rgledp_vpa, + "LCD RG Phosphor VPA", + "LCD RG Phosphor VPA", + 0, + DISPTECH_LCD_RISE, + DISPTECH_LCD_FALL, + "h" + }, + { disptech_lcd_rgledp_tft, + "LCD RG Phosphor TFT", + "LCD RG Phosphor TFT", + 0, + DISPTECH_LCD_RISE, + DISPTECH_LCD_FALL, + "h" + }, + + { disptech_oled, + "LED OLED", + "LED OLED", + 0, + DISPTECH_LED_RISE, + DISPTECH_LED_FALL, + "o" + }, + { disptech_amoled, + "LED AMOLED", + "LED AMOLED", + 0, + DISPTECH_LED_RISE, + DISPTECH_LED_FALL, + "a" + }, + + { disptech_dlp, + "Projector", + "DLP Projector", + 1, + DISPTECH_DLP_RISE, + DISPTECH_DLP_FALL, + "p" + }, + { disptech_dlp_rgb, + "Projector RGB Filter Wheel", + "DLP Projector RGB Filter Wheel", + 1, + DISPTECH_DLP_RISE, + DISPTECH_DLP_FALL, + "p" + }, + { disptech_dlp_rgbw, + "Projector RGBW Filter Wheel", + "DPL Projector RGBW Filter Wheel", + 1, + DISPTECH_DLP_RISE, + DISPTECH_DLP_FALL, + "p" + }, + { disptech_dlp_rgbcmy, + "Projector RGBCMY Filter Wheel", + "DLP Projector RGBCMY Filter Wheel", + 1, + DISPTECH_DLP_RISE, + DISPTECH_DLP_FALL, + "p" + }, + + { + disptech_unknown, + "Unknown", + "Unknown", + 1, + DISPTECH_WORST_RISE, + DISPTECH_WORST_FALL, + "u" + }, + + { + disptech_end /* End marker */ + } +}; + + +static unknown_ix = -1; + +static find_unknown() { + int i; + + for (i = 0; disptech_info_array[i].dtech != disptech_end; i++) { + if (disptech_info_array[i].dtech == disptech_unknown) { + unknown_ix = i; + break; + } + } +} + +/* Given the enum id, return the matching disptech_info entry */ +/* Return the disptech_unknown entry if not matched */ +disptech_info *disptech_get_id(disptech id) { + int i; + + for (i = 0; disptech_info_array[i].dtech != disptech_end; i++) { + if (disptech_info_array[i].dtech == id) + return &disptech_info_array[i]; + } + + if (unknown_ix < 0) + find_unknown(); + return &disptech_info_array[unknown_ix]; +} + +/* Given the string id, return the matching disptech_info entry */ +/* Return the disptech_unknown entry if not matched */ +disptech_info *disptech_get_strid(char *strid) { + int i; + + for (i = 0; disptech_info_array[i].dtech != disptech_end; i++) { + if (strcmp(disptech_info_array[i].strid, strid) == 0) + return &disptech_info_array[i]; + } + + if (unknown_ix < 0) + find_unknown(); + return &disptech_info_array[unknown_ix]; +} + +/* For each selector we need to: + + check each selector char + if already used, + remove it. + if no selector remain, + allocate a free one. + mark all used selectors + + We treat the first selector as more important + than any aliases that come after it, so we need + to do two passes to resolve what gets used. +*/ + +/* Set the selection characters */ +/* return NZ if we have run out */ +/* If flag & 3 == 1, deal with all selectors & remove any already used */ +/* If flag & 3 == 2, deal with just primary selectors & remove any already used */ +/* If flag & 3 == 3, deal with just secondary selectors & remove any already used */ +/* If flag & 4, allocate selectors to those that don't have any */ +int disptechs_set_sel(int flag, char *sel, char *usels, int *k, char *asels) { + char *d, *s, i; + + /* First remove any used chars from selector */ + if (flag & 3) { + for (i = 0, d = s = sel; *s != '\000'; s++, i++) { + if (((flag & 3) == 3 && i == 0) /* Ignore and keep primary selector */ + || ((flag & 3) == 2 && i == 1)) { /* Ignore and keep secondary selectors */ + *d++ = *s; + continue; + } + if (usels[*s] == 0) { /* If selector is not currently used */ + *d++ = *s; + usels[*s] = 1; + } + } + *d = '\000'; + } + + /* Add a selector if we need one */ + if ((flag & 4) && sel[0] == '\000') { + + /* Locate the next unused selector */ + for (;;) { + if (asels[*k] == '\000') /* Run out of selectors */ + return 1; + if (usels[*k] == 0) + break; + (*k)++; + } + sel[0] = asels[*k]; + sel[1] = '\000'; + usels[sel[0]] = 1; + (*k)++; + } + + return 0; +} + +/* Return the display tech list with unique lsel lectors */ +disptech_info *disptech_get_list() { + disptech_info *list = &disptech_info_array[1]; /* skip disptech_none entry */ + + int i, k; + char usels[256]; /* Used selectors */ + static char *asels = "123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"; + + for (i = 0; i < 256; i++) + usels[i] = 0; + k = 0; /* Next selector index */ + + /* Add entries from the static list and their primary selectors */ + for (i = 0; list[i].dtech != disptech_end; i++) { + strcpy(list[i].lsel, list[i].sel); + + if (disptechs_set_sel(2, list[i].lsel, usels, &k, asels)) { + a1loge(g_log, 1, "disptech_get_list run out of selectors\n"); + break; + } + } + + /* Create needed selectors */ + for (i = 0; list[i].dtech != disptech_end; i++) + disptechs_set_sel(4, list[i].lsel, usels, &k, asels); + + /* Verify or delete any secondary selectors from the list */ + for (i = 0; list[i].dtech != disptech_end; i++) + disptechs_set_sel(3, list[i].lsel, usels, &k, asels); + + return list; +} + +/* Locate the display list item that matches the given selector. */ +/* Return NULL if not found */ +disptech_info *disptech_select(disptech_info *list, char c) { + int i; + + for (i = 0; list[i].dtech != disptech_end; i++) { + if (c == list[i].lsel[0]) + return &list[i]; + } + + return NULL; +} + + +/* ------------------------------------------- */ + +/* + Display settling time model. This is primarily tailored + to phosphor type response (ie. CRT or Plasma), but LCD + should be somewhat similar + + Outline: + + Use sRGB as the device model. + + For the target RGB, compute the partial derivative of + delta E with respect to R, G & B, and then multiply + that by desired dE accuracy to get the target R, G & B + delta from the target, and then put that into + the exponential rise/fall model to compute settling time. + Choose the worst of the 3. + + Should really change the code to compute partial derivative + directly, to speed code up. + + We assume the phosphor stimulus is the proportional to the + light output required (ie. that the CRT/encoding non-linearity + is in the electron gun, not the electron->phoshor->light mechanism. ) +*/ + +/* Convert gamma encoded rgb to linear light rgb */ +static void rgb2rgbl(double *rgbl, double *rgb) { + int i; + for (i = 0; i < 3; i++) { + if (rgb[i] < 0.04045) + rgbl[i] = rgb[i]/12.92; + else + rgbl[i] = pow((rgb[i] + 0.055)/1.055, 2.4); + } +} + +/* Convert linear light rgb to L*a*b* */ +static void rgbl2lab(double *lab, double *rgbl) { + int i; + double xyz[3]; + static double mat[3][3] = { + { 0.412391, 0.212639, 0.019331 }, /* Red */ + { 0.357584, 0.715169, 0.119195 }, /* Green */ + { 0.180481, 0.072192, 0.950532 } /* Blue */ + }; + + icmMulBy3x3(xyz, mat, rgbl); + icmXYZ2Lab(&icmD65, lab, xyz); +} + +#ifdef NEVER +/* Convert linear light rgb to L*a*b* with partial derivatives */ +static void ddrgbl2lab(double *lab, double dout[3][3], double *rgbl) { + int i, j, k; + double xyz[3]; + static double mat[9] = { + 0.412391, 0.212639, 0.019331, /* Red */ + 0.357584, 0.715169, 0.119195, /* Green */ + 0.180481, 0.072192, 0.950532 /* Blue */ + }; + double dxyzlab[3][3]; /* Part. Deriv of [xyz] with respect to [rgb] */ + double dlabxyz[3][3]; /* Part. Deriv of [lab] from [xyz] */ + + icxdpdiiMulBy3x3Parm(xyz, dxyzlab, mat, rgbl); + icxdXYZ2Lab(&icmD65, lab, dlabxyz, xyz); + + /* Compute the partial derivative of Lab from rgb */ + for (k = 0; k < 3; k++) { + for (j = 0; j < 3; j++) { + dout[k][j] = 0.0; + for (i = 0; i < 3; i++) { + dout[k][j] += dlabxyz[k][i] * dxyzlab[i][j]; + } + } + } +} +#endif /* NEVER */ + +/* Convert linear light rgb to L*a*b* delta E partial derivatives */ +static void drgbl2lab(/* double *lab, */double deout[3], double *rgbl) { + int i, j, k; + static double mat[3][3] = { + { 0.412391, 0.212639, 0.019331 }, /* Red */ + { 0.357584, 0.715169, 0.119195 }, /* Green */ + { 0.180481, 0.072192, 0.950532 } /* Blue */ + }; + double xyz[3]; + double wp[3], tin[3], dtin[3]; + double dlabxyz[3][3]; /* Part. Deriv of [lab] from [xyz] */ + double dout[3][3]; /* Part. Deriv of [lab] from [rgb] */ + + /* rgb to XYZ */ + for (i = 0; i < 3; i++) { + xyz[i] = 0.0; + for (j = 0; j < 3; j++) { + xyz[i] += mat[i][j] * rgbl[j]; + } + } + + /* XYZ to perceptual Lab with partial derivatives. */ + wp[0] = icmD65.X, wp[1] = icmD65.Y, wp[2] = icmD65.Z; + + for (i = 0; i < 3; i++) { + tin[i] = xyz[i]/wp[i]; + dtin[i] = 1.0/wp[i]; + + if (tin[i] > 0.008856451586) { + dtin[i] *= pow(tin[i], -2.0/3.0) / 3.0; + tin[i] = pow(tin[i],1.0/3.0); + } else { + dtin[i] *= 7.787036979; + tin[i] = 7.787036979 * tin[i] + 16.0/116.0; + } + } + +/* lab[0] = 116.0 * tin[1] - 16.0; */ + dlabxyz[0][0] = 0.0; + dlabxyz[0][1] = 116.0 * dtin[1]; + dlabxyz[0][2] = 0.0; + +/* lab[1] = 500.0 * (tin[0] - tin[1]); */ + dlabxyz[1][0] = 500.0 * dtin[0]; + dlabxyz[1][1] = 500.0 * -dtin[1]; + dlabxyz[1][2] = 0.0; + +/* lab[2] = 200.0 * (tin[1] - tin[2]); */ + dlabxyz[2][0] = 0.0 * mat[0][1]; + dlabxyz[2][1] = 200.0 * dtin[1]; + dlabxyz[2][2] = 200.0 * -dtin[2]; + + /* Compute the partial derivative of delta E from rgb */ + for (j = 0; j < 3; j++) { + deout[j] = 0.0; + for (k = 0; k < 3; k++) { + dout[k][j] = 0.0; + for (i = 0; i < 3; i++) { + dout[k][j] += dlabxyz[k][i] * mat[i][j]; + } + deout[j] += dout[k][j] * dout[k][j]; + } + deout[j] = sqrt(deout[j]); + } +} + +double disp_settle_time(double *orgb, double *nrgb, double rise, double fall, double dE) { + int i, j; + double orgbl[3], nrgbl[3]; /* Linear light RGB */ + double drgb[3]; /* Partial derivative of RGB wrt to dE at new rgb */ + double argbl[3]; /* Acceptable RGB */ + double stime[3]; /* Settling time */ + double kr, kf; + double xtime = 0.0; + + /* Convert rgb's to linear light rgb */ + rgb2rgbl(orgbl, orgb); + rgb2rgbl(nrgbl, nrgb); + +//printf("orgb = %f %f %f\n", orgb[0], orgb[1], orgb[2]); +//printf("nrgb = %f %f %f\n", nrgb[0], nrgb[1], nrgb[2]); +//printf("orgbl = %f %f %f\n", orgbl[0], orgbl[1], orgbl[2]); +//printf("nrgbl = %f %f %f\n", nrgbl[0], nrgbl[1], nrgbl[2]); +//printf("dE = %f\n", dE); + + /* Compute partial derivative */ + drgbl2lab(drgb, nrgbl); +//printf("drgb = %f %f %f\n", drgb[0], drgb[1], drgb[2]); + +#ifdef NEVER + /* Calculate partial derivative explicitely to check */ + { + double rlab[3], lab[3]; + double xdrgb[3]; /* Partial derivative of RGB wrt to dE at new rgb */ + + /* Reference Lab */ + rgbl2lab(rlab, nrgbl); +//printf("rlab = %f %f %f\n", rlab[0], rlab[1], rlab[2]); + + for (j = 0; j < 3; j++) { + double del; + + if (nrgbl[j] > 0.5) + del = -1e-6; + else + del = 1e-6; + + nrgbl[j] += del; + rgbl2lab(lab, nrgbl); + nrgbl[j] -= del; +//printf("check pde of in %d = lab %f, %f, %f\n",j, (lab[0] - rlab[0])/del, (lab[1] - rlab[1])/del, (lab[2] - rlab[2])/del); + xdrgb[j] = icmLabDE(rlab, lab)/fabs(del); + } +printf("chk drgb = %f %f %f\n", xdrgb[0], xdrgb[1], xdrgb[2]); + } +#endif /* NEVER */ + + /* Compute rgb value that would give targ delta E */ + for (j = 0; j < 3; j++) { + double del; + + del = dE/drgb[j]; + + if (orgbl[j] < nrgbl[j]) { + argbl[j] = nrgbl[j] - del; + if (argbl[j] < orgbl[j]) + argbl[j] = orgbl[j]; + } else { + argbl[j] = nrgbl[j] + del; + if (argbl[j] > orgbl[j]) + argbl[j] = orgbl[j]; + } + } + +//{ double rlab[3], lab[3]; +//rgbl2lab(lab, argbl); +//rgbl2lab(rlab, nrgbl); +//printf("argbl = %f %f %f\n", argbl[0], argbl[1], argbl[2]); +//printf("dE for argbl = %f\n",icmLabDE(rlab, lab)); +//} + + /* Compute the modelled time from orgbl to argbl */ + kr = rise/log(1.0 - 0.9); /* Exponent constant for 90% change*/ + kf = fall/log(1.0 - 0.9); /* Exponent constant for 90% change*/ + + for (j = 0; j < 3; j++) { + double el, dl, n, t; + + dl = (argbl[j] - orgbl[j])/(nrgbl[j] - orgbl[j]); + + if (fabs(dl) < 1e-6) { + stime[j] = 0.0; + continue; + } + + if (nrgbl[j] > orgbl[j]) + stime[j] = kr * log(1.0 - dl); + else + stime[j] = kf * log(1.0 - dl); + + if (stime[j] > xtime && stime[j] < 5.0) + xtime = stime[j]; + } +//printf("stime = %f %f %f\n", stime[0], stime[1], stime[2]); +//printf("returning = %f\n",xtime); + + return xtime; +} + + + + + diff --git a/spectro/disptechs.h b/spectro/disptechs.h new file mode 100644 index 0000000..8c0a416 --- /dev/null +++ b/spectro/disptechs.h @@ -0,0 +1,149 @@ + +#ifndef DISPTYPES_H + + /* Standardized display types for use with libinst */ + +/* + * Argyll Color Correction System + * + * Author: Graeme W. Gill + * Date: 14/5/2014 + * + * Copyright 2014 Graeme W. Gill + * All rights reserved. + * + * This material is licenced under the GNU GENERAL PUBLIC LICENSE Version 2 or later :- + * see the License2.txt file for licencing details. + * + */ + +#ifdef __cplusplus + extern "C" { +#endif + +/* See for some numbers on response times */ + +/* These are intended to be conservative numbers for 90% transition times */ +/* The settling model will compute the time necessary for a 0.1 dE error */ +/* from this using an exponenial decay model. */ + +#define DISPTECH_WORST_RISE 0.100 +#define DISPTECH_WORST_FALL 0.250 + +#define DISPTECH_CRT_RISE 0.040 +#define DISPTECH_CRT_FALL 0.250 + +#define DISPTECH_LCD_RISE 0.100 +#define DISPTECH_LCD_FALL 0.050 + +#define DISPTECH_LED_RISE 0.001 +#define DISPTECH_LED_FALL 0.001 + +#define DISPTECH_DLP_RISE 0.002 +#define DISPTECH_DLP_FALL 0.002 + +/* Type of display technology */ +typedef enum { + + disptech_unknown = 0x0000, /* Unknown dislay type */ + + disptech_none = 0x0001, /* display type is inaplicable (ie. ambient) */ + + disptech_crt = 0x1000, /* Generic CRT */ + + disptech_plasma = 0x2000, /* Generic Plasma */ + + disptech_lcd = 0x3000, /* Generic LCD */ + + disptech_lcd_ccfl = 0x3100, /* LCD with CCFL */ + disptech_lcd_ccfl_ips = 0x3110, /* IPS LCD with CCFL */ + disptech_lcd_ccfl_vpa = 0x3120, /* VPA LCD with CCFL */ + disptech_lcd_ccfl_tft = 0x3130, /* TFT LCD with CCFL */ + + disptech_lcd_ccfl_wg = 0x3200, /* Wide gamut LCD with CCFL */ + disptech_lcd_ccfl_wg_ips = 0x3210, /* IPS wide gamut LCD with CCFL */ + disptech_lcd_ccfl_wg_vpa = 0x3220, /* VPA wide gamut LCD with CCFL */ + disptech_lcd_ccfl_wg_tft = 0x3230, /* TFT wide gamut LCD with CCFL */ + + disptech_lcd_wled = 0x3300, /* LCD with white LED */ + disptech_lcd_wled_ips = 0x3310, /* IPS LCD with white LED */ + disptech_lcd_wled_vpa = 0x3320, /* VPA LCD with white LED */ + disptech_lcd_wled_tft = 0x3330, /* TFT LCD with white LED */ + + disptech_lcd_rgbled = 0x3400, /* LCD with RGB LED */ + disptech_lcd_rgbled_ips = 0x3410, /* IPS LCD with RGB LED */ + disptech_lcd_rgbled_vpa = 0x3420, /* VPA LCD with RGB LED */ + disptech_lcd_rgbled_tft = 0x3430, /* TFT LCD with RGB LED */ + + disptech_lcd_rgledp = 0x3500, /* IPS LCD with RG LED + Phosphor */ + disptech_lcd_rgledp_ips = 0x3510, /* IPS LCD with RG LED + Phosphor */ + disptech_lcd_rgledp_vpa = 0x3520, /* VPA LCD with RG LED + Phosphor */ + disptech_lcd_rgledp_tft = 0x3530, /* TFT LCD with RG LED + Phosphor */ + + disptech_oled = 0x4000, /* Organic LED */ + disptech_amoled = 0x4010, /* Active Matrix Organic LED */ + + disptech_dlp = 0x5000, /* Generic Digital Light Processing projector */ + disptech_dlp_rgb = 0x5010, /* DLP projector with RGB filter */ + disptech_dlp_rgbw = 0x5020, /* DLP projector with RGBW filter */ + disptech_dlp_rgbcmy = 0x5030, /* DLP projector with RGBCMY filter */ + + disptech_end = 0xffffffff /* List end marker */ + +} disptech; + +#ifdef __cplusplus + } +#endif + +/* Information defined by instrument type */ +struct _disptech_info { + + disptech dtech; /* Enumeration */ + + char *strid; /* String ID */ + char *desc; /* Desciption and identification string */ + + int refr; /* Refresh mode flag */ + + double rise_time; /* rise time to 90% in seconds */ + double fall_time; /* fall time to 90% in seconds */ + + char *sel; /* Default command line selector (may be NULL) */ + + /* Private: */ + + char lsel[10]; /* Unique list selector for ui */ + +}; typedef struct _disptech_info disptech_info; + + +/* Given the enum id, return the matching disptech_info entry */ +/* Return the disptech_unknown entry if not matched */ +disptech_info *disptech_get_id(disptech id); + +/* Given the string id, return the matching disptech_info entry */ +/* Return the disptech_unknown entry if not matched */ +disptech_info *disptech_get_strid(char *strid); + +/* Return the display tech list with unique lsel lectors */ +disptech_info *disptech_get_list(); + +/* Locate the display list item that matches the given selector. */ +/* Return NULL if not found */ +disptech_info *disptech_select(disptech_info *list, char c); + +/* - - - - - - - - - - - */ + +/* utility function, used by disptech_get_list & inst_creat_disptype_list() */ +int disptechs_set_sel(int flag, char *sel, char *usels, int *k, char *asels); + +/* - - - - - - - - - - */ +/* Display settling time model */ + +double disp_settle_time(double *orgb, double *nrgb, double rise, double fall, double dE); + + +#define DISPTYPES_H +#endif /* DISPTYPES_H */ + diff --git a/spectro/dispwin.c b/spectro/dispwin.c index 74186cf..d5b0797 100644 --- a/spectro/dispwin.c +++ b/spectro/dispwin.c @@ -49,11 +49,16 @@ #include "copyright.h" #include "aconfig.h" #include "icc.h" -#include "numsup.h" +#include "numlib.h" #include "cgats.h" #include "conv.h" +#include "xicc.h" +#include "disptechs.h" #include "dispwin.h" +#include "ui.h" #include "webwin.h" +#include "ccast.h" +#include "ccwin.h" #ifdef NT # include "madvrwin.h" #endif @@ -391,8 +396,8 @@ disppath **get_displays() { /* We could possibly use NSScreen instead of CG here, - but we'd need to have a an NSApp first, so perhaps not. - + If we're using libui, then we have an NSApp, so + this would be possible. */ int i; @@ -2386,7 +2391,7 @@ int dispwin_install_profile(dispwin *p, char *fname, ramdac *r, p_scope scope) { return 1; } - if ((basename = PathFindFileName(fullpath)) == NULL) { + if ((basename = PathFindFileNameX(fullpath)) == NULL) { debugr2((errout,"Locating base name in '%s' failed\n",fname)); free(fullpath); return 1; @@ -2501,8 +2506,9 @@ int dispwin_install_profile(dispwin *p, char *fname, ramdac *r, p_scope scope) { gid = atoi(gids); if (setegid(gid) || seteuid(uid)) { debugr("seteuid or setegid failed\n"); + } else { + debug2((errout,"Set euid %d and egid %d\n",uid,gid)); } - debug2((errout,"Set euid %d and egid %d\n",uid,gid)); } /* If setting local system profile and not effective root, but sudo */ } else if (scope != p_scope_user && getuid() == 0 && geteuid() != 0) { @@ -2510,8 +2516,8 @@ int dispwin_install_profile(dispwin *p, char *fname, ramdac *r, p_scope scope) { && getenv("SUDO_GID") != NULL) { debugr("We're setting a system profile running as user - revert to root\n"); - setegid(getgid()); - seteuid(getuid()); + if (setegid(getgid()) || seteuid(getuid())) + debugr("seteuid or setegid failed\n"); } } #endif /* OS X || Linux */ @@ -2699,6 +2705,7 @@ int dispwin_install_profile(dispwin *p, char *fname, ramdac *r, p_scope scope) { if (cd_found) ev = cd_edid_install_profile(p->edid, p->edid_len, sc, fname); + // Hmm. We're relying on colord error codes being in sync with ucmm. else ev = ucmm_install_monitor_profile(sc, p->edid, p->edid_len, p->name, fname); @@ -2750,7 +2757,7 @@ int dispwin_uninstall_profile(dispwin *p, char *fname, p_scope scope) { return 1; } - if ((basename = PathFindFileName(fullpath)) == NULL) { + if ((basename = PathFindFileNameX(fullpath)) == NULL) { debugr2((errout,"Locating base name in '%s' failed\n",fname)); free(fullpath); return 1; @@ -3374,8 +3381,14 @@ void (*dispwin_term)(int sig) = SIG_DFL; static dispwin *signal_dispwin = NULL; static void dispwin_sighandler(int arg) { + static amutex_static(lock); dispwin *pp, *np; + /* Make sure we don't re-enter */ + if (amutex_trylock(lock)) { + return; + } + /* Restore all dispwin's Ramdacs & screen savers */ for (pp = signal_dispwin; pp != NULL; pp = np) { np = pp->next; @@ -3391,6 +3404,8 @@ static void dispwin_sighandler(int arg) { dispwin_int(arg); if (arg == SIGTERM && dispwin_term != SIG_DFL && dispwin_term != SIG_IGN) dispwin_term(arg); + + amutex_unlock(lock); exit(0); } @@ -3454,8 +3469,6 @@ typedef struct { #endif } osx_cntx_t; -static void OSX_ProcessEvents(dispwin *p); - // - - - - - - - - - - - - - - - - - - - - - - - - - @@ -3505,7 +3518,7 @@ unsigned char emptyCursor[43] = { frect = NSMakeRect(p->tx, p->ty, (1.0 + p->tw), (1.0 + p->th)); #if __MAC_OS_X_VERSION_MAX_ALLOWED >= 1040 - /* Use matching profile to (hopefully) trigger null color transform */ + /* Use matching profile to (hopefully) trigger null color transform. */ /* This doesn't work on < 10.6 though. */ if (cx->nscs != NULL) { CGFloat rgb[4]; @@ -3571,7 +3584,7 @@ unsigned char emptyCursor[43] = { /* Create our window */ static void create_my_win(NSRect rect, osx_cntx_t *cx) { dispwin *p = cx->p; - SInt32 MacVers; + SInt32 MacMajVers, MacMinVers, MacBFVers; void *cspr = NULL; /* ColorSync profile ref. */ int i; @@ -3660,8 +3673,11 @@ static void create_my_win(NSRect rect, osx_cntx_t *cx) { #if __MAC_OS_X_VERSION_MAX_ALLOWED >= 1040 /* >= 10.6+ device colors don't work on secondary display, need null transform. */ /* < 10.6 null transform doesn't work. */ - if (Gestalt(gestaltSystemVersion, &MacVers) == noErr - && MacVers >= 0x1060 + + if (Gestalt(gestaltSystemVersionMajor, &MacMajVers) == noErr + && Gestalt(gestaltSystemVersionMinor, &MacMinVers) == noErr + && Gestalt(gestaltSystemVersionBugFix, &MacBFVers) == noErr + && MacMajVers >= 10 && MacMinVers >= 6 && cx->nscs == NULL) { warning("Unable to create null color transform - test colors may be wrong!"); } @@ -3682,13 +3698,13 @@ double r, double g, double b /* Color values 0.0 - 1.0 */ int j; double orgb[3]; /* Previous RGB value */ double kr, kf; - int update_delay = p->update_delay; - double xdelay = 0.0; /* Extra delay for response time */ + int update_delay = 0; debugr("dispwin_set_color called\n"); - if (p->nowin) + if (p->nowin) { return 1; + } orgb[0] = p->rgb[0]; p->rgb[0] = r; orgb[1] = p->rgb[1]; p->rgb[1] = g; @@ -3803,9 +3819,12 @@ double r, double g, double b /* Color values 0.0 - 1.0 */ return 2; } - /* We're creating and draining a pool here to ensure that all the */ - /* auto release objects get drained when we're finished (?) */ - NSAutoreleasePool *tpool = [NSAutoreleasePool new]; + /* If we may be in a different thread to the main thread or */ + /* the application thread, establish our own pool. */ + NSAutoreleasePool *tpool = nil; + if (pthread_self() != ui_thid + && pthread_self() != ui_main_thid) + tpool = [NSAutoreleasePool new]; /* Stop the system going to sleep */ UpdateSystemActivity(OverallAct); @@ -3833,10 +3852,8 @@ double r, double g, double b /* Color values 0.0 - 1.0 */ /* Trigger an update that fills window with r_rgb[] */ [((osx_cntx_t *)(p->osx_cntx))->view setNeedsDisplay: YES ]; - /* Process events */ - OSX_ProcessEvents(p); - - [tpool release]; + if (tpool != nil) + [tpool release]; #endif /* __APPLE__ */ @@ -3883,43 +3900,13 @@ double r, double g, double b /* Color values 0.0 - 1.0 */ free(cmd); } - /* Don't want extra delay if we're measuring update delay */ - if (update_delay != 0 && p->do_resp_time_del) { - /* Compute am expected response time for the change in level */ - kr = DISPLAY_RISE_TIME/log(1 - 0.9); /* Exponent constant */ - kf = DISPLAY_FALL_TIME/log(1 - 0.9); /* Exponent constant */ -//printf("~1 k2 = %f\n",k2); - for (j = 0; j < 3; j++) { - double el, dl, n, t; - - el = pow(p->rgb[j], 2.2); - dl = el - pow(orgb[j], 2.2); /* Change in level */ - if (fabs(dl) > 0.01) { /* More than 1% change in level */ - n = DISPLAY_SETTLE_AIM * el; - if (n < DISPLAY_ABS_AIM) - n = DISPLAY_ABS_AIM; -//printf("~1 sl %f, el %f, log (%f / %f)\n",sl,el,n,fabs(sl - el)); - if (dl > 0.0) - t = kr * log(n/dl); - else - t = kf * log(n/-dl); - - if (t > xdelay) - xdelay = t; - } - } -//printf("~1 xdelay = %f secs\n",xdelay); - xdelay *= 1000.0; /* To msec */ - /* This is kind of a fudge since update delay is after latency, */ - /* but displays with long delay (ie. CRT) have short latency, and visa versa */ - if ((int)xdelay > update_delay) - update_delay = (int)xdelay; - } + update_delay = dispwin_compute_delay(p, orgb); - /* Allow some time for the display to update before */ - /* a measurement can take place. This allows for CRT */ - /* refresh, or LCD processing/update time, + */ - /* display settling time (quite long for smaller LCD changes). */ + /* Allow some time for the display & instrument to update */ + /* before a measurement can take place. This allows for CRT refresh, */ + /* or LCD processing/update time, + display settling time (quite long for */ + /* smaller LCD changes), and any instrument reaction time. */ + debugr2((errout, "dispwin_set_color delaying %d msec\n",update_delay)); msec_sleep(update_delay); if (p->cberror) { /* Callback routine failed */ @@ -3930,17 +3917,66 @@ double r, double g, double b /* Color values 0.0 - 1.0 */ } /* ----------------------------------------------- */ -/* Set an update delay, and return the previous value */ -/* Value can be set to zero, but othewise will be forced */ -/* to be >= min_update_delay */ -static int dispwin_set_update_delay( -dispwin *p, -int update_delay) { - int cval = p->update_delay; - p->update_delay = update_delay; - if (update_delay != 0 && p->update_delay < p->min_update_delay) - p->update_delay = p->min_update_delay; - return cval; + +/* Set a patch delay and instrument reaction time values. */ +/* The overall delay between patch change and triggering */ +/* the instrument is (patch_delay + display_settle - inst_reaction) */ +/* and will never be less than the min_update_delay value. */ +void dispwin_set_update_delay(dispwin *p, int patch_delay, int inst_reaction) { + p->patch_delay = patch_delay; + p->inst_reaction = inst_reaction; +} + +/* Set/unset the blackground color flag */ +/* Return nz on error */ +static int dispwin_set_bg(dispwin *p, int blackbg) { + return 1; /* Need to re-create window */ +} + +/* Set the display settling time constants. Use -ve value to leave current value */ +/* unchanged. (These values are used as part of the update delay calculations - see above). */ +void dispwin_set_settling_delay(dispwin *p, double rise_time, double fall_time, double de_aim) { + if (rise_time >= 0.0) + p->rise_time = rise_time; + if (fall_time >= 0.0) + p->fall_time = fall_time; + if (de_aim >= 0.0) + p->de_aim = de_aim; +} + +/* Enable or disable the update delay. This is used to disable the update delay */ +/* when measuring the patch_delay and inst_reaction */ +void dispwin_enable_update_delay(dispwin *p, int enable) { + p->do_update_del = enable; +} + +/* Return the update delay we should use (msec) */ +int dispwin_compute_delay(dispwin *p, double *orgb) { + int update_delay = 0, disp_settle = 0; + + if (p->do_update_del == 0) { + return 0; + } + + if (p->do_resp_time_del) { + double xdelay; + + /* Compute am expected response time for the change in level, */ + /* to achieve 0.1 delta E */ + xdelay = disp_settle_time(orgb, p->rgb, p->rise_time * p->settle_mult, + p->fall_time * p->settle_mult, p->de_aim); + disp_settle = (int)(xdelay * 1000.0 + 0.5); + } + + update_delay = p->patch_delay + disp_settle - p->inst_reaction; + + /* Enforce minimum delay */ + if (update_delay < p->min_update_delay) + update_delay = p->min_update_delay; + + if (p->ddebug) fprintf(stderr,"dispwin: update delay %d msec = patch_delay %d + disp_settle %d - inst_reaction %d\n", update_delay, p->patch_delay, disp_settle, p->inst_reaction); + + return update_delay; } /* ----------------------------------------------- */ @@ -4192,34 +4228,6 @@ static LRESULT CALLBACK MainWndProc( #endif /* NT */ -#ifdef __APPLE__ - -/* Not the event handler (because events are handled by the Cocoa objects) */ -/* but a function to call to process events after an update */ -static void OSX_ProcessEvents(dispwin *p) { - NSEvent *event; - NSDate *to; - - /* We're creating and draining a pool here to ensure that all the */ - /* auto release objects get drained when we're finished (?) */ -// NSAutoreleasePool *tpool = [NSAutoreleasePool new]; - - /* Wait until the events are done */ - to = [NSDate dateWithTimeIntervalSinceNow:0.01]; /* autorelease ? */ - for (;;) { - /* Hmm. Assume event is autorelease */ - if ((event = [NSApp nextEventMatchingMask:NSAnyEventMask - untilDate:to inMode:NSDefaultRunLoopMode dequeue:YES]) != nil) { - [NSApp sendEvent:event]; - } else { - break; - } - } -// [tpool release]; -} - -#endif /* __APPLE__ */ - #if defined(UNIX_X11) /* None */ #endif /* UNXI X11 */ @@ -4329,6 +4337,42 @@ int win_message_thread(void *pp) { #endif /* NT */ +/* Set the defauly update delay values */ +void dispwin_set_default_delays(dispwin *p) { + char *cp; + + p->min_update_delay = 20; + + if ((cp = getenv("ARGYLL_MIN_DISPLAY_UPDATE_DELAY_MS")) != NULL) { + p->min_update_delay = atoi(cp); + if (p->min_update_delay < 20) + p->min_update_delay = 20; + if (p->min_update_delay > 60000) + p->min_update_delay = 60000; + debugr2((errout, "new_dispwin: Minimum display update delay set to %d msec\n",p->min_update_delay)); + } + + p->settle_mult = 1.0; + + if ((cp = getenv("ARGYLL_DISPLAY_SETTLE_TIME_MULT")) != NULL) { + p->settle_mult = atof(cp); + if (p->settle_mult < 1e-6) + p->settle_mult = 1e-6; + if (p->settle_mult > 1e4) + p->settle_mult = 1e4; + debugr2((errout, "new_dispwin: Settling time multiplier %f\n",p->settle_mult)); + } + + p->patch_delay = PATCH_UPDATE_DELAY; /* Default patch delay */ + p->inst_reaction = INSTRUMENT_REACTIONTIME; /* Default inst delay */ + p->rise_time = DISPLAY_RISE_TIME; + p->fall_time = DISPLAY_FALL_TIME; + p->de_aim = DISPLAY_SETTLE_AIM; + + p->do_resp_time_del = 1; /* Default this to on */ + p->do_update_del = 1; /* Default this to on */ +} + /* Create a RAMDAC access and display test window, default grey */ dispwin *new_dispwin( disppath *disp, /* Display to calibrate. */ @@ -4347,7 +4391,6 @@ int override, /* NZ if override_redirect is to be used on X11 */ int ddebug /* >0 to print debug statements to stderr */ ) { dispwin *p = NULL; - char *cp; debug("new_dispwin called\n"); @@ -4367,39 +4410,29 @@ int ddebug /* >0 to print debug statements to stderr */ } /* !!!! Make changes in webwin.c as well !!!! */ + p->width = width; + p->height = height; p->nowin = nowin; p->native = native; p->out_tvenc = out_tvenc; p->blackbg = blackbg; p->ddebug = ddebug; - p->get_ramdac = dispwin_get_ramdac; - p->set_ramdac = dispwin_set_ramdac; - p->install_profile = dispwin_install_profile; - p->uninstall_profile = dispwin_uninstall_profile; - p->get_profile = dispwin_get_profile; - p->set_color = dispwin_set_color; - p->set_update_delay = dispwin_set_update_delay; - p->set_callout = dispwin_set_callout; - p->del = dispwin_del; + p->get_ramdac = dispwin_get_ramdac; + p->set_ramdac = dispwin_set_ramdac; + p->install_profile = dispwin_install_profile; + p->uninstall_profile = dispwin_uninstall_profile; + p->get_profile = dispwin_get_profile; + p->set_color = dispwin_set_color; + p->set_bg = dispwin_set_bg; + p->set_update_delay = dispwin_set_update_delay; + p->set_settling_delay = dispwin_set_settling_delay; + p->enable_update_delay = dispwin_enable_update_delay; + p->set_callout = dispwin_set_callout; + p->del = dispwin_del; p->rgb[0] = p->rgb[1] = p->rgb[2] = 0.5; /* Set Grey as the initial test color */ - p->min_update_delay = 20; - - if ((cp = getenv("ARGYLL_MIN_DISPLAY_UPDATE_DELAY_MS")) != NULL) { - p->min_update_delay = atoi(cp); - if (p->min_update_delay < 20) - p->min_update_delay = 20; - if (p->min_update_delay > 60000) - p->min_update_delay = 60000; - debugr2((errout, "new_dispwin: Minimum display update delay set to %d msec\n",p->min_update_delay)); - } - - p->update_delay = DISPLAY_UPDATE_DELAY; /* Default update delay */ - if (p->update_delay < p->min_update_delay) - p->update_delay = p->min_update_delay; - - p->do_resp_time_del = 1; /* Default this to on */ + dispwin_set_default_delays(p); /* Basic object is initialised, so create a window */ @@ -4566,7 +4599,7 @@ int ddebug /* >0 to print debug statements to stderr */ } debugr2((errout,"new_dispwin: found pixel depth %d bits\n",p->pdepth)); } - /* Get frame buffer depth for sanity check */ + /* Get frame buffer depth for sanity check, but don't actually make used of it */ dispmode = CGDisplayCopyDisplayMode(p->ddid); pixenc = CGDisplayModeCopyPixelEncoding(dispmode); @@ -4619,25 +4652,23 @@ int ddebug /* >0 to print debug statements to stderr */ debugr2((errout, "new_dispwin: About to open display '%s'\n",disp->name)); - /* We're creating and draining a pool here to ensure that all the */ - /* auto release objects get drained when we're finished (?) */ - NSAutoreleasePool *tpool = [NSAutoreleasePool new]; + /* If we may be in a different thread to the main thread or */ + /* the application thread, establish our own pool. */ + NSAutoreleasePool *tpool = nil; + if (pthread_self() != ui_thid + && pthread_self() != ui_main_thid) + tpool = [NSAutoreleasePool new]; - /* If we don't have an application object, create one. */ - /* (This should go in a common library) */ - /* Note that we don't actually clean this up on exit - */ - /* possibly we can't. */ + /* If there is no NSApp, then we haven't run main() in libui before */ + /* main() in the application. */ if (NSApp == nil) { -// static NSAutoreleasePool *pool; /* Pool used for NSApp */ -// pool = [NSAutoreleasePool new]; - NSApp = [NSApplication sharedApplication]; /* Creates NSApp */ - [NSApp finishLaunching]; - /* We seem to need this, because otherwise we don't get focus automatically */ - [NSApp activateIgnoringOtherApps: YES]; + fprintf(stderr,"NSApp is nil - need to rename main() to main() and link with libui !\n"); + exit(1); } if ((cx = (osx_cntx_t *)calloc(sizeof(osx_cntx_t), 1)) == NULL) { - [tpool release]; + if (tpool != nil) + [tpool release]; debugr2((errout,"new_dispwin: Malloc failed (osx_cntx_t)\n")); dispwin_del(p); return NULL; @@ -4684,9 +4715,8 @@ int ddebug /* >0 to print debug statements to stderr */ create_my_win(wrect, cx); - OSX_ProcessEvents(p); - - [tpool release]; + if (tpool != nil) + [tpool release]; p->winclose = 0; } @@ -4780,6 +4810,9 @@ int ddebug /* >0 to print debug statements to stderr */ } //p->pdepth = DefaultDepth(p->mydisplay, p->myscreen)/3; + + // Hmm. Should we explicitly get the root window visual, + // since our test window inherits it from root ? myvisual = DefaultVisual(p->mydisplay, p->myscreen); p->pdepth = myvisual->bits_per_rgb; p->edepth = 16; @@ -5072,6 +5105,7 @@ int ddebug /* >0 to print debug statements to stderr */ debugr("Unable to access VideoLUT\n"); if (noramdac != NULL) *noramdac = 1; + p->native = native &= ~1; p->oor = p->or = p->r = NULL; } @@ -5086,7 +5120,7 @@ int ddebug /* >0 to print debug statements to stderr */ if (nocm != NULL) *nocm = 1; - p->native &= ~2; + p->native = native &= ~2; } debugr("new_dispwin: return sucessfully\n"); @@ -5344,7 +5378,9 @@ static int gcc_bug_fix(int i) { #include "numlib.h" -static void usage(char *diag, ...) { +/* Flag = 0x0000 = default */ +/* Flag & 0x0001 = list ChromCast's */ +static void usage(int flag, char *diag, ...) { disppath **dp; fprintf(stderr,"Test display patch window, Set Video LUTs, Install profiles, Version %s\n",ARGYLL_VERSION_STR); fprintf(stderr,"Author: Graeme W. Gill, licensed under the AGPL Version 3\n"); @@ -5377,7 +5413,23 @@ static void usage(char *diag, ...) { } } free_disppaths(dp); - fprintf(stderr," -dweb[:port] Display via a web server at port (default 8080)\n"); + fprintf(stderr," -dweb[:port] Display via web server at port (default 8080)\n"); + fprintf(stderr," -dcc[:n] Display via n'th ChromeCast (default 1, ? for list)\n"); + if (flag & 0x001) { + ccast_id **ids; + if ((ids = get_ccids()) == NULL) { + fprintf(stderr," ** Error discovering ChromCasts **\n"); + } else { + if (ids[0] == NULL) + fprintf(stderr," ** No ChromCasts found **\n"); + else { + int i; + for (i = 0; ids[i] != NULL; i++) + fprintf(stderr," %d = '%s'\n",i+1,ids[i]->name); + free_ccids(ids); + } + } + } #ifdef NT fprintf(stderr," -dmadvr Display via MadVR Video Renderer\n"); #endif @@ -5385,7 +5437,7 @@ static void usage(char *diag, ...) { fprintf(stderr," -P ho,vo,ss[,vs] Position test window and scale it\n"); fprintf(stderr," -F Fill whole screen with black background\n"); fprintf(stderr," -i Run forever with random values\n"); - fprintf(stderr," -G filename Display RGB colors from CGATS file\n"); + fprintf(stderr," -G filename Display RGB colors from CGATS (ie .ti1) file\n"); fprintf(stderr," -C r.rr,g.gg,b.bb Add this RGB color to list to be displayed\n"); fprintf(stderr," -m Manually cycle through values\n"); fprintf(stderr," -f Test grey ramp fade\n"); @@ -5417,6 +5469,7 @@ main(int argc, char *argv[]) { int verb = 0; /* Verbose flag */ int ddebug = 0; /* debug level */ int webdisp = 0; /* NZ for web display, == port number */ + int ccdisp = 0; /* NZ for ChromeCast, == list index */ #ifdef NT int madvrdisp = 0; /* NZ for MadVR display */ #endif @@ -5476,7 +5529,7 @@ main(int argc, char *argv[]) { } if (argv[fa][1] == '?') - usage("Usage requested"); + usage(0,"Usage requested"); else if (argv[fa][1] == 'v') verb = 1; @@ -5488,6 +5541,7 @@ main(int argc, char *argv[]) { ddebug = atoi(na); fa = nfa; } + g_log->debug = ddebug; callback_ddebug = ddebug; /* dispwin global */ } @@ -5499,7 +5553,19 @@ main(int argc, char *argv[]) { if (na[3] == ':') { webdisp = atoi(na+4); if (webdisp == 0 || webdisp > 65535) - usage("Web port number must be in range 1..65535"); + usage(0,"Web port number must be in range 1..65535"); + } + fa = nfa; + } else if (strncmp(na,"cc",2) == 0 + || strncmp(na,"CC",2) == 0) { + ccdisp = 1; + if (na[2] == ':') { + if (na[3] < '0' || na[3] > '9') + usage(0x0001,"Available ChromeCasts"); + + ccdisp = atoi(na+3); + if (ccdisp <= 0) + usage(0,"ChromCast number must be in range 1..N"); } fa = nfa; #ifdef NT @@ -5514,10 +5580,10 @@ main(int argc, char *argv[]) { /* X11 type display name. */ if (strcmp(&argv[fa][2], "isplay") == 0 || strcmp(&argv[fa][2], "ISPLAY") == 0) { - if (++fa >= argc || argv[fa][0] == '-') usage("-DISPLAY parameter missing"); + if (++fa >= argc || argv[fa][0] == '-') usage(0,"-DISPLAY parameter missing"); setenv("DISPLAY", argv[fa], 1); } else { - if (na == NULL) usage("-d parameter missing"); + if (na == NULL) usage(0,"-d parameter missing"); fa = nfa; if (sscanf(na, "%d,%d",&ix,&iv) != 2) { ix = atoi(na); @@ -5526,19 +5592,19 @@ main(int argc, char *argv[]) { if (disp != NULL) free_a_disppath(disp); if ((disp = get_a_display(ix-1)) == NULL) - usage("-d parameter '%s' is out of range",na); + usage(0,"-d parameter '%s' is out of range",na); if (iv > 0) disp->rscreen = iv-1; } #else int ix; - if (na == NULL) usage("-d parameter is missing"); + if (na == NULL) usage(0,"-d parameter is missing"); fa = nfa; ix = atoi(na); if (disp != NULL) free_a_disppath(disp); if ((disp = get_a_display(ix-1)) == NULL) - usage("-d parameter '%s' is out of range",na); + usage(0,"-d parameter '%s' is out of range",na); #endif } } @@ -5546,19 +5612,19 @@ main(int argc, char *argv[]) { /* Test patch offset and size */ else if (argv[fa][1] == 'P') { fa = nfa; - if (na == NULL) usage("-p parameters are missing"); + if (na == NULL) usage(0,"-p parameters are missing"); if (sscanf(na, " %lf,%lf,%lf,%lf ", &ho, &vo, &hpatscale, &vpatscale) == 4) { ; } else if (sscanf(na, " %lf,%lf,%lf ", &ho, &vo, &hpatscale) == 3) { vpatscale = hpatscale; } else { - usage("-p parameters '%s' is badly formatted",na); + usage(0,"-p parameters '%s' is badly formatted",na); } if (ho < 0.0 || ho > 1.0 || vo < 0.0 || vo > 1.0 || hpatscale <= 0.0 || hpatscale > 50.0 || vpatscale <= 0.0 || vpatscale > 50.0) - usage("-p parameters '%s' is out of range",na); + usage(0,"-p parameters '%s' is out of range",na); ho = 2.0 * ho - 1.0; vo = 2.0 * vo - 1.0; @@ -5579,21 +5645,21 @@ main(int argc, char *argv[]) { /* CGATS patch color file */ else if (argv[fa][1] == 'G') { fa = nfa; - if (na == NULL) usage("-G parameter is missing"); + if (na == NULL) usage(0,"-G parameter is missing"); strncpy(pcname,na,MAXNAMEL); pcname[MAXNAMEL] = '\000'; } /* Manual color */ else if (argv[fa][1] == 'C') { fa = nfa; if (nmrgb >= 10) - usage("Can only be up to 10 -C values"); - if (na == NULL) usage("-C parameters are missing"); + usage(0,"Can only be up to 10 -C values"); + if (na == NULL) usage(0,"-C parameters are missing"); if (sscanf(na, "%lf,%lf,%lf ",&mrgb[nmrgb][0],&mrgb[nmrgb][1],&mrgb[nmrgb][2]) != 3) - usage("-C parameters '%s' are badly formatted",na); + usage(0,"-C parameters '%s' are badly formatted",na); if (mrgb[nmrgb][0] < 0.0 || mrgb[nmrgb][0] > 1.0 || mrgb[nmrgb][1] < 0.0 || mrgb[nmrgb][1] > 1.0 || mrgb[nmrgb][2] < 0.0 || mrgb[nmrgb][2] > 1.0) - usage("-C parameters %f %f %f are out of range 0.0 - 1.0",mrgb[nmrgb][0],mrgb[nmrgb][1],mrgb[nmrgb][2]); + usage(0,"-C parameters %f %f %f are out of range 0.0 - 1.0",mrgb[nmrgb][0],mrgb[nmrgb][1],mrgb[nmrgb][2]); nmrgb++; } else if (argv[fa][1] == 'f') @@ -5608,7 +5674,7 @@ main(int argc, char *argv[]) { else if (argv[fa][1] == 's') { fa = nfa; - if (na == NULL) usage("-s parameter is missing"); + if (na == NULL) usage(0,"-s parameter is missing"); strncpy(sname,na,MAXNAMEL); sname[MAXNAMEL] = '\000'; } @@ -5632,7 +5698,7 @@ main(int argc, char *argv[]) { else if (argv[fa][1] == 'S') { fa = nfa; - if (na == NULL) usage("-S parameter is missing"); + if (na == NULL) usage(0,"-S parameter is missing"); if (na[0] == 'n' || na[0] == 'N') scope = p_scope_network; else if (na[0] == 'l' || na[0] == 'L') @@ -5641,7 +5707,7 @@ main(int argc, char *argv[]) { scope = p_scope_user; } else - usage("Unknown flag '%s'",argv[fa]); + usage(0,"Unknown flag '%s'",argv[fa]); } else break; @@ -5652,7 +5718,8 @@ main(int argc, char *argv[]) { #ifdef NT && madvrdisp == 0 #endif - && webdisp == 0) { + && webdisp == 0 + && ccdisp == 0) { int ix = 0; #if defined(UNIX_X11) char *dn, *pp; @@ -5678,7 +5745,7 @@ main(int argc, char *argv[]) { } #if defined(UNIX_X11) - if (webdisp == 0 && daemonmode) { + if (webdisp == 0 && ccdisp == 0 && daemonmode) { return x11_daemon_mode(disp, verb, ddebug); } #endif @@ -5700,7 +5767,6 @@ main(int argc, char *argv[]) { if (ramd != 0 || sname[0] != '\000' || clear != 0 || verify != 0 || loadfile != 0 || installprofile != 0 || loadprofile != 0) nowin = 1; - if (webdisp != 0) { if ((dw = new_webwin(webdisp, 100.0 * hpatscale, 100.0 * vpatscale, ho, vo, nowin, native, &noramdac, &nocm, out_tvenc, blackbg, verb, ddebug)) == NULL) { @@ -5708,6 +5774,32 @@ main(int argc, char *argv[]) { return -1; } + } else if (ccdisp != 0) { + ccast_id **ids; + if ((ids = get_ccids()) == NULL) { + printf("Error - discovering ChromCasts failed\n"); + return -1; + } + if (ids[0] == NULL) { + printf("Error - there are no ChromCasts to use\n"); + return -1; + } + for (i = 0; ids[i] != NULL; i++) + ; + if (ccdisp < 1 || ccdisp > i) { + printf("Error - chosen ChromCasts (%d) is outside list (1..%d)\n",ccdisp,i); + return -1; + } + + if ((dw = new_ccwin(ids[ccdisp-1], 100.0 * hpatscale, 100.0 * vpatscale, + ho, vo, nowin, native, &noramdac, &nocm, out_tvenc, + blackbg, verb, ddebug)) == NULL) { + printf("Error - new_ccwin failed!\n"); + free_ccids(ids); + return -1; + } + free_ccids(ids); + #ifdef NT } else if (madvrdisp != 0) { if (out_tvenc) { @@ -5717,7 +5809,7 @@ main(int argc, char *argv[]) { if ((dw = new_madvrwin(100.0 * hpatscale, 100.0 * vpatscale, ho, vo, nowin, native, &noramdac, &nocm, out_tvenc, blackbg, verb, ddebug)) == NULL) { - printf("Error - new_madvrwin failed!\n"); + printf("Error - new_madvrwin failed! (Is it running and up to date?)\n"); return -1; } #endif diff --git a/spectro/dispwin.h b/spectro/dispwin.h index 1206661..43e23d2 100644 --- a/spectro/dispwin.h +++ b/spectro/dispwin.h @@ -15,15 +15,18 @@ * see the License.txt file for licencing details. */ -#define DISPLAY_UPDATE_DELAY 200 /* default minimum display update delay allowance */ +/* + * Hmm. Should make display settling time a user overridable parameter, + * to allow for very fast response displays such as oled ? + */ -/* Display rise and fall time model. This is CRT like */ -#define DISPLAY_RISE_TIME 0.03 /* Assumed rise time to 90% of target level */ -#define DISPLAY_FALL_TIME 0.12 /* Assumed fall time to 90% of target level */ -#define DISPLAY_SETTLE_AIM 0.01 /* Aim for 1% of true level */ -#define DISPLAY_ABS_AIM 0.0001 /* Aim for .01% of true absolute level */ +#define PATCH_UPDATE_DELAY 200 /* default & minimum patch update delay allowance */ +#define INSTRUMENT_REACTIONTIME 0 /* default nominal instrument reaction time */ -int do_plot(double *x, double *y1, double *y2, double *y3, int n); +/* Display rise and fall time model. This is CRT like */ +#define DISPLAY_RISE_TIME 0.04 /* Assumed rise time to 90% of target level */ +#define DISPLAY_FALL_TIME 0.25 /* Assumed fall time to 90% of target level */ +#define DISPLAY_SETTLE_AIM 0.1 /* Aim for 0.2 Delta E */ #ifdef NT #define OEMRESOURCE @@ -63,9 +66,9 @@ WINSHLWAPI LPSTR WINAPI PathFindFileNameA(LPCSTR); WINSHLWAPI LPWSTR WINAPI PathFindFileNameW(LPCWSTR); #ifdef UNICODE -#define PathFindFileName PathFindFileNameW +#define PathFindFileNameX PathFindFileNameW #else -#define PathFindFileName PathFindFileNameA +#define PathFindFileNameX PathFindFileNameA #endif #endif /* NT */ @@ -104,7 +107,7 @@ typedef enum { /* Structure to store infomation about possible displays */ typedef struct { char *name; /* Display name */ - char *description; /* Description of display */ + char *description; /* Description of display or URL */ int sx,sy; /* Displays offset in pixels */ int sw,sh; /* Displays width and height in pixels*/ #ifdef NT @@ -172,8 +175,10 @@ struct _ramdac { /* - - - - - - - - - - - - - - - - - - - - - - - */ /* Dispwin object */ - -/* !!!! Make changes in dispwin.c, webwin.c & madvrwin.c !!!! */ +/* This is used by all the different test patch window types, */ +/* dispwin, webwin, madvrwin and ccwin. +/* !!!! Make changes in dispwin.c, webwin.c, madvrwin.c & ccwin.c !!!! */ +/* !!!! if this structure gets changed. !!!! */ struct _dispwin { @@ -193,9 +198,17 @@ struct _dispwin { double s_rgb[3]; /* Current color (possibly scaled range) */ double r_rgb[3]; /* Current color (raster value) */ int out_tvenc; /* 1 to use RGB Video Level encoding */ - int update_delay; /* Update latency delay in msec, default 200 */ - int min_update_delay; /* Minimum update latency delay, default 20, overriden by EV */ + int patch_delay; /* Measured patch update latency delay in msec, default 200 */ + int inst_reaction; /* Measured instrument reaction time delay in msec, default 0 */ + double rise_time; /* Display settling rise time */ + double fall_time; /* Display settling fall time */ + double de_aim; /* Display settling deltaE aim */ + int min_update_delay; /* Minimum overall update latency delay, default 20, */ + /* overriden by EnvVar */ + double settle_mult; /* Settling time multiplier */ int do_resp_time_del; /* NZ to compute and use expected display response time */ + int do_update_del; /* NZ to do update delay */ + double extra_update_delay; /* Test window internal extra delay (used in delay cal.) */ int nowin; /* Don't create a test window */ int native; /* X0 = use current per channel calibration curve */ /* X1 = set native linear output and use ramdac high precision */ @@ -204,6 +217,7 @@ struct _dispwin { ramdac *oor; /* Original orgininal ramdac contents, NULL if not accessible */ ramdac *or; /* Original ramdac contents, NULL if not accessible, restored on exit */ ramdac *r; /* Ramdac in use for native mode or general use */ + double width, height; /* Orginial size in mm or % */ int blackbg; /* NZ if black full screen background */ char *callout; /* if not NULL - set color Shell callout routine */ @@ -254,7 +268,7 @@ struct _dispwin { Atom icc_out_atom; /* ICC profile atom for this output */ #endif /* randr >= V 1.2 */ - /* Test windo access */ + /* Test window access */ Window mywindow; GC mygc; @@ -277,7 +291,7 @@ struct _dispwin { #endif /* UNIX_X11 */ - void *pcntx; /* Private context (ie., webwin) */ + void *pcntx; /* Private context (ie., webwin, ccwin) */ volatile unsigned int ncix, ccix; /* Counters to trigger webwin colorchange */ volatile int mg_stop; /* Stop flag */ @@ -315,15 +329,29 @@ struct _dispwin { /* Return nz on error */ int (*set_color)(struct _dispwin *p, double r, double g, double b); + /* Set/unset the blackground color flag. */ + /* Will only change on next set_col() */ + /* Return nz on error */ + int (*set_bg)(struct _dispwin *p, int blackbg); + /* Optional - may be NULL */ /* set patch info */ /* Return nz on error */ int (*set_pinfo)(struct _dispwin *p, int pno, int tno); - /* Set an update delay, and return the previous value */ - /* Note that 0 is a special case and forces a zero delay */ - /* in spite of min_update_delay and do_resp_time_del */ - int (*set_update_delay)(struct _dispwin *p, int update_delay); + /* Set a patch delay and instrument reaction time values. */ + /* The overall delay between patch change and triggering */ + /* the instrument is (patch_delay + display_settle - inst_reaction) */ + /* and will never be less than the min_update_delay value. */ + void (*set_update_delay)(struct _dispwin *p, int patch_delay, int inst_reaction); + + /* Set the display settling time constants. Use -ve value to leave current value */ + /* unchanged. (These values are used as part of the update delay calculations - see above). */ + void (*set_settling_delay)(struct _dispwin *p, double rise_time, double fall_time, double de_aim); + + /* Enable or disable the update delay. This is used to disable the update delay */ + /* when measuring the patch_delay and inst_reaction */ + void (*enable_update_delay)(struct _dispwin *p, int enable); /* Set a shell set color callout command line */ void (*set_callout)(struct _dispwin *p, char *callout); @@ -352,11 +380,18 @@ dispwin *new_dispwin( ); /* Shared implementation */ +void dispwin_set_default_delays(dispwin *p); +void dispwin_set_update_delay(dispwin *p, int patch_delay, int inst_reaction); +void dispwin_set_settling_delay(dispwin *p, double rise_time, double fall_time, double de_aim); +void dispwin_enable_update_delay(dispwin *p, int enable); +int dispwin_compute_delay(dispwin *p, double *orgb); + ramdac *dispwin_clone_ramdac(ramdac *r); void dispwin_setlin_ramdac(ramdac *r); void dispwin_del_ramdac(ramdac *r); + #define DISPWIN_H #endif /* DISPWIN_H */ diff --git a/spectro/dtp20.c b/spectro/dtp20.c index b378f50..a460bb8 100644 --- a/spectro/dtp20.c +++ b/spectro/dtp20.c @@ -36,6 +36,24 @@ and agreed to support. */ +/* + CS comand values: + + 00 - Instrument Not Ready + 01 - Instrument Ready, Empty + 02 - Instrument Ready, TID has been scanned + 03 - Instrument Ready, Complete target has been measured + 04 - Instrument is Busy ? + 05 - + 06 - Error ? + 07 - Hardware Error + 08 - Clear Database Mode + 09 - Calibration Mode + 10 - + 11 - + 12 - + */ + #include #include #include @@ -62,6 +80,8 @@ static inst_code activate_mode(dtp20 *p); #define MAX_MES_SIZE 500 /* Maximum normal message reply size */ #define MAX_RD_SIZE 100000 /* Maximum reading messagle reply size */ +#define STRIP_READ_TIMEOUT 10.0 + /* Extract an error code from a reply string */ /* Return -1 if no error code can be found */ static int @@ -112,7 +132,7 @@ double to) { /* Timout in seconts */ int ntc = 1; /* Number of terminating characters */ int rv, se, insize; - a1logd(p->log, 4, "dtp20: Sending '%s'",icoms_fix(in)); + a1logd(p->log, 4, "dtp20: Sending '%s' bsize %d, to %f\n",icoms_fix(in),bsize,to); insize = strlen(in); if (insize > 0) { @@ -122,7 +142,7 @@ double to) { /* Timout in seconts */ } } - if ((se = p->icom->read(p->icom, out, bsize, tc, ntc, to)) != 0) { + if ((se = p->icom->read(p->icom, out, bsize, NULL, tc, ntc, to)) != 0) { a1logd(p->log, 1, "dtp20: read response failed ICOM err 0x%x\n",se); return dtp20_interp_code((inst *)p, icoms2dtp20_err(se)); } @@ -135,7 +155,7 @@ double to) { /* Timout in seconts */ if (rv != DTP20_OK) { /* Clear the error */ char buf[MAX_MES_SIZE]; p->icom->usb_control(p->icom, 0x41, 0x00, 0x00, 0x00, (unsigned char *)"CE\r", 3, 0.5); - p->icom->read(p->icom, buf, MAX_MES_SIZE, tc, ntc, 0.5); + p->icom->read(p->icom, buf, MAX_MES_SIZE, NULL, tc, ntc, 0.5); } } } @@ -234,7 +254,7 @@ dtp20_init_coms(inst *pp, baud_rate br, flow_control fc, double tout) { /* Print the general information returned by instrument */ if (p->log->verb) { int i, j; - if ((ev = dtp20_command(p, "GI\r", buf, MAX_MES_SIZE, 0.2)) != inst_ok) { + if ((ev = dtp20_command(p, "GI\r", buf, MAX_MES_SIZE, 2.0)) != inst_ok) { a1logd(p->log, 1, "dtp20: GI command failed with ICOM err 0x%x\n",ev); return ev; } @@ -433,7 +453,7 @@ ipatch *vals) { /* Pointer to array of values */ return inst_protocol_error; if (cs != 3) { /* Seems to be no chart saved, but double check, in case of old firmware ( < 1.03) */ - if ((ev = dtp20_command(p, "00TS\r", buf, MAX_RD_SIZE, 0.5)) != inst_ok) + if ((ev = dtp20_command(p, "00TS\r", buf, MAX_RD_SIZE, 2.0)) != inst_ok) return inst_nonesaved; if (sscanf(buf," %d ", &cs) != 1) return inst_nonesaved; @@ -442,7 +462,7 @@ ipatch *vals) { /* Pointer to array of values */ } /* Get the TID */ - if ((ev = dtp20_command(p, "ST\r", buf, MAX_RD_SIZE, 0.5)) != inst_ok) + if ((ev = dtp20_command(p, "ST\r", buf, MAX_RD_SIZE, 2.0)) != inst_ok) return ev; if (sscanf(buf,"Strip Length: %d Total Patches: %d Patch Width: %lf mm Gap Width: %lf mm" " User 1: %d User 2: %d User 3: %d User 4: %d User 5: %d User 6: %d" @@ -487,7 +507,7 @@ ipatch *vals) { /* Pointer to array of values */ return ev; if ((ev = dtp20_command(p, "0518CF\r", buf, MAX_RD_SIZE, 0.5)) != inst_ok) return ev; - if ((ev = dtp20_command(p, cmd, buf, MAX_RD_SIZE, 0.5)) != inst_ok) + if ((ev = dtp20_command(p, cmd, buf, MAX_RD_SIZE, STRIP_READ_TIMEOUT)) != inst_ok) return ev; /* Parse the buffer */ @@ -639,7 +659,7 @@ ipatch *vals) { /* Pointer to array of instrument patch values */ if (sscanf(buf, " %d ", &stat) != 1) stat = 6; - /* Ignore benign status */ + /* Ignore benign status - wait for busy or error */ if (stat != 4 && stat != 6 && stat != 7) { /* Not ready - Check for user trigger or command */ if (p->uicallback != NULL) { @@ -714,7 +734,7 @@ ipatch *vals) { /* Pointer to array of instrument patch values */ return ev; if ((ev = dtp20_command(p, "0518CF\r", buf, MAX_RD_SIZE, 0.5)) != inst_ok) return ev; - if ((ev = dtp20_command(p, "01TS\r", buf, MAX_RD_SIZE, 0.5)) != inst_ok) + if ((ev = dtp20_command(p, "01TS\r", buf, MAX_RD_SIZE, STRIP_READ_TIMEOUT)) != inst_ok) return ev; /* Parse the buffer */ @@ -739,6 +759,7 @@ ipatch *vals) { /* Pointer to array of instrument patch values */ vals[i].sp.spec_n = 0; vals[i].duration = 0.0; tp += strlen(tp) + 1; + } if (p->mode & inst_mode_spectral) { @@ -751,7 +772,7 @@ ipatch *vals) { /* Pointer to array of instrument patch values */ return ev; /* Read the strip */ - if ((ev = dtp20_bin_command(p, "01TS\r", buf, 62 * npatch, 5.0)) != inst_ok) + if ((ev = dtp20_bin_command(p, "01TS\r", buf, 62 * npatch, STRIP_READ_TIMEOUT)) != inst_ok) return ev; /* Get each patches spectra */ @@ -772,7 +793,7 @@ ipatch *vals) { /* Pointer to array of instrument patch values */ vals[i].sp.norm = 100.0; } - /* Set to ASCII */ + /* Set back to ASCII */ if ((ev = dtp20_command(p, "001BCF\r", buf, MAX_MES_SIZE, 0.5)) != inst_ok) return ev; /* Set back to D50 2 degree */ @@ -780,8 +801,7 @@ ipatch *vals) { /* Pointer to array of instrument patch values */ return ev; } - - /* Wait for status to change */ + /* Wait for instrument to become not busy */ for (;;) { if ((ev = dtp20_command(p, "CS\r", buf, MAX_MES_SIZE, 0.2)) != inst_ok) { return ev; @@ -860,7 +880,7 @@ instClamping clamp) { /* NZ if clamp XYZ/Lab to be +ve */ int stat; if (sscanf(buf, " %d ", &stat) != 1) stat = 6; - /* Ingnore benign status */ + /* Ignore benign status - wait for busy or error */ if (stat != 4 && stat != 6 && stat != 7) { msec_sleep(200); continue; @@ -918,6 +938,7 @@ instClamping clamp) { /* NZ if clamp XYZ/Lab to be +ve */ p->savix++; sprintf(cmd, "%03d01GM\r",p->savix); + /* Disable multiple data output */ if ((ev = dtp20_command(p, "001ACF\r", buf, MAX_MES_SIZE, 0.5)) != inst_ok) return ev; @@ -971,6 +992,7 @@ instClamping clamp) { /* NZ if clamp XYZ/Lab to be +ve */ val->sp.spec_n = 0; val->duration = 0.0; + if (p->mode & inst_mode_spectral) { int j; @@ -1016,7 +1038,7 @@ instClamping clamp) { /* NZ if clamp XYZ/Lab to be +ve */ return ev; p->savix = 0; - /* Wait for status to change */ + /* Wait for instrument to become not busy */ for (;;) { if ((ev = dtp20_command(p, "CS\r", buf, MAX_MES_SIZE, 0.2)) != inst_ok) { return ev; @@ -1060,7 +1082,7 @@ static inst_code dtp20_get_n_a_cals(inst *pp, inst_cal_type *pn_cals, inst_cal_t /* returning inst_needs_cal. Initially us an inst_cal_cond of inst_calc_none, */ /* and then be prepared to setup the right conditions, or ask the */ /* user to do so, each time the error inst_cal_setup is returned. */ -inst_code dtp20_calibrate( +static inst_code dtp20_calibrate( inst *pp, inst_cal_type *calt, /* Calibration type to do/remaining */ inst_cal_cond *calc, /* Current condition/desired condition */ @@ -1104,6 +1126,7 @@ char id[CALIDLEN] /* Condition identifier (ie. white reference ID) */ } if (*calt & inst_calt_ref_white) { + int i; if (*calc != inst_calc_man_ref_white) { char *cp; @@ -1120,6 +1143,18 @@ char id[CALIDLEN] /* Condition identifier (ie. white reference ID) */ if ((ev = dtp20_command(p, "CR\r", buf, MAX_MES_SIZE, 4.5)) != inst_ok) return ev; + /* Wait for instrument to become not busy */ + for (;;) { + if ((ev = dtp20_command(p, "CS\r", buf, MAX_MES_SIZE, 0.2)) != inst_ok) { + return ev; + } else { + int stat = 4; + if (sscanf(buf, " %d ", &stat) != 1 || stat != 4) + break; + msec_sleep(200); + } + } + p->need_cal = 0; *calt &= ~inst_calt_ref_white; } @@ -1392,7 +1427,7 @@ static void set_capabilities(dtp20 *p) { /* Return the instrument capabilities */ -void dtp20_capabilities(inst *pp, +static void dtp20_capabilities(inst *pp, inst_mode *cap1, inst2_capability *cap2, inst3_capability *cap3) { @@ -1506,7 +1541,7 @@ inst_opt_type m, /* Requested status type */ *fe |= inst_stat_savdrd_chart; } else { /* Seems to be no chart saved, but double check, in case of old firmware */ - if ((ev = dtp20_command(p, "00TS\r", buf, MAX_MES_SIZE, 0.5)) == inst_ok) { + if ((ev = dtp20_command(p, "00TS\r", buf, MAX_MES_SIZE, 2.0)) == inst_ok) { if (sscanf(buf," %d ", &cs) == 1) { if (cs != 0) { *fe |= inst_stat_savdrd_chart; @@ -1562,7 +1597,7 @@ inst_opt_type m, /* Requested status type */ *no_patches = *no_rows = *pat_per_row = *chart_id = *missing_row = -1; /* Get the TID */ - if ((ev = dtp20_command(p, "ST\r", buf, MAX_RD_SIZE, 0.5)) != inst_ok) + if ((ev = dtp20_command(p, "ST\r", buf, MAX_RD_SIZE, 2.0)) != inst_ok) return ev; if (sscanf(buf,"Strip Length: %d Total Patches: %d Patch Width: %lf mm Gap Width: %lf mm" " User 1: %d User 2: %d User 3: %d User 4: %d User 5: %d User 6: %d" diff --git a/spectro/dtp20.h b/spectro/dtp20.h index f1e578a..c575c67 100644 --- a/spectro/dtp20.h +++ b/spectro/dtp20.h @@ -1,4 +1,4 @@ -#ifndef DTP41_H +#ifndef DTP20_H /* * Argyll Color Correction System diff --git a/spectro/dtp22.c b/spectro/dtp22.c index 927d833..a80f887 100644 --- a/spectro/dtp22.c +++ b/spectro/dtp22.c @@ -131,7 +131,7 @@ dtp22_fcommand( double to) { /* Timout in seconds */ int se, rv = DTP22_OK; - if ((se = p->icom->write_read(p->icom, in, out, bsize, tc, ntc, to)) != 0) { + if ((se = p->icom->write_read(p->icom, in, 0, out, bsize, NULL, tc, ntc, to)) != 0) { a1logd(p->log, 1, "dtp22_fcommand: serial i/o failure on write_read '%s'\n",icoms_fix(in)); return icoms2dtp22_err(se); } @@ -145,7 +145,7 @@ dtp22_fcommand( rv &= inst_imask; if (rv != DTP22_OK) { /* Clear the error */ char buf[MAX_MES_SIZE]; - p->icom->write_read(p->icom, "CE\r", buf, MAX_MES_SIZE, ">", 1, 0.5); + p->icom->write_read(p->icom, "CE\r", 0, buf, MAX_MES_SIZE, NULL, ">", 1, 0.5); } } } @@ -249,7 +249,7 @@ dtp22_init_coms(inst *pp, baud_rate br, flow_control fc, double tout) { return ev; /* Change the baud rate to the rate we've been told */ - if ((se = p->icom->write_read(p->icom, brc[bi], buf, MAX_MES_SIZE, ">", 1, .2)) != 0) { + if ((se = p->icom->write_read(p->icom, brc[bi], 0, buf, MAX_MES_SIZE, NULL, ">", 1, .2)) != 0) { if (extract_ec(buf) != DTP22_OK) return inst_coms_fail; } @@ -261,7 +261,7 @@ dtp22_init_coms(inst *pp, baud_rate br, flow_control fc, double tout) { } /* Loose a character (not sure why) */ - p->icom->write_read(p->icom, "\r", buf, MAX_MES_SIZE, ">", 1, 0.1); + p->icom->write_read(p->icom, "\r", 0, buf, MAX_MES_SIZE, NULL, ">", 1, 0.1); /* Check instrument is responding, and reset it again. */ if ((ev = dtp22_command(p, "\r", buf, MAX_MES_SIZE, 0.2)) != inst_ok @@ -481,7 +481,7 @@ instClamping clamp) { /* NZ if clamp XYZ/Lab to be +ve */ /* Wait for the microswitch to be triggered, or the user to trigger */ for (;;) { - if ((se = p->icom->read(p->icom, buf, MAX_MES_SIZE, ">", 1, 1.0)) != 0) { + if ((se = p->icom->read(p->icom, buf, MAX_MES_SIZE, NULL, ">", 1, 1.0)) != 0) { if ((se & ICOM_TO) == 0) { /* Some sort of read error */ /* Disable the read microswitch */ dtp22_command(p, "2PB\r", buf, MAX_MES_SIZE, 0.2); @@ -701,14 +701,14 @@ char id[CALIDLEN] /* Condition identifier (ie. white reference ID) */ goto do_exit; /* Issue white calibration */ - if ((se = p->icom->write(p->icom, "1CA\r", 0.5)) != ICOM_OK) { + if ((se = p->icom->write(p->icom, "1CA\r", 0, 0.5)) != ICOM_OK) { ev = dtp22_interp_code((inst *)p, icoms2dtp22_err(se)); goto do_exit; } /* Wait for the microswitch to be triggered, or a user trigger via uicallback */ for (;;) { - if ((se = p->icom->read(p->icom, buf, MAX_MES_SIZE, ">", 1, 1.0)) != 0) { + if ((se = p->icom->read(p->icom, buf, MAX_MES_SIZE, NULL, ">", 1, 1.0)) != 0) { if ((se & ICOM_TO) == 0) { /* Some sort of read error */ ev = dtp22_interp_code((inst *)p, icoms2dtp22_err(se)); goto do_exit; diff --git a/spectro/dtp41.c b/spectro/dtp41.c index 4717ed4..a2f7e83 100644 --- a/spectro/dtp41.c +++ b/spectro/dtp41.c @@ -115,7 +115,7 @@ int ntc, /* Number of terminating characters */ double to) { /* Timout in seconts */ int rv, se; - if ((se = p->icom->write_read(p->icom, in, out, bsize, tc, ntc, to)) != 0) { + if ((se = p->icom->write_read(p->icom, in, 0, out, bsize, NULL, tc, ntc, to)) != 0) { a1logd(p->log, 1, "dtp41_fcommand: serial i/o failure 0x%x on write_read '%s'\n",se,icoms_fix(in)); return icoms2dtp41_err(se); } @@ -126,7 +126,7 @@ double to) { /* Timout in seconts */ rv &= inst_imask; if (rv != DTP41_OK) { /* Clear the error */ char buf[MAX_MES_SIZE]; - p->icom->write_read(p->icom, "CE\r", buf, MAX_MES_SIZE, ">", 1, 0.5); + p->icom->write_read(p->icom, "CE\r", 0, buf, MAX_MES_SIZE, NULL, ">", 1, 0.5); } } } @@ -228,13 +228,13 @@ dtp41_init_coms(inst *pp, baud_rate br, flow_control fc, double tout) { return ev; /* Set the handshaking (cope with coms breakdown) */ - if ((se = p->icom->write_read(p->icom, fcc, buf, MAX_MES_SIZE, ">", 1, 1.5)) != 0) { + if ((se = p->icom->write_read(p->icom, fcc, 0, buf, MAX_MES_SIZE, NULL, ">", 1, 1.5)) != 0) { if (extract_ec(buf) != DTP41_OK) return inst_coms_fail; } /* Change the baud rate to the rate we've been told (cope with coms breakdown) */ - if ((se = p->icom->write_read(p->icom, brc[bi], buf, MAX_MES_SIZE, ">", 1, 1.5)) != 0) { + if ((se = p->icom->write_read(p->icom, brc[bi], 0, buf, MAX_MES_SIZE, NULL, ">", 1, 1.5)) != 0) { if (extract_ec(buf) != DTP41_OK) return inst_coms_fail; } @@ -247,7 +247,7 @@ dtp41_init_coms(inst *pp, baud_rate br, flow_control fc, double tout) { } /* Loose a character (not sure why) */ - p->icom->write_read(p->icom, "\r", buf, MAX_MES_SIZE, ">", 1, 0.5); + p->icom->write_read(p->icom, "\r", 0, buf, MAX_MES_SIZE, NULL, ">", 1, 0.5); /* Check instrument is responding */ if ((ev = dtp41_command(p, "\r", buf, MAX_MES_SIZE, 1.5)) != inst_ok) { diff --git a/spectro/dtp51.c b/spectro/dtp51.c index ac497d9..062ad7f 100644 --- a/spectro/dtp51.c +++ b/spectro/dtp51.c @@ -118,7 +118,7 @@ dtp51_fcommand( double to) { /* Timout in seconts */ int rv, se; - if ((se = p->icom->write_read(p->icom, in, out, bsize, tc, ntc, to)) != 0) { + if ((se = p->icom->write_read(p->icom, in, 0, out, bsize, NULL, tc, ntc, to)) != 0) { a1logd(p->log, 1, "dtp51_fcommand: serial i/o failure on write_read '%s'\n",icoms_fix(in)); return icoms2dtp51_err(se); } @@ -129,7 +129,7 @@ dtp51_fcommand( rv &= inst_imask; if (rv != DTP51_OK) { /* Clear the error */ char buf[MAX_MES_SIZE]; - p->icom->write_read(p->icom, "CE\r", buf, MAX_MES_SIZE, ">", 1, 0.5); + p->icom->write_read(p->icom, "CE\r", 0, buf, MAX_MES_SIZE, NULL, ">", 1, 0.5); } } } @@ -158,7 +158,7 @@ double to) { /* Timout in seconts */ int ntc = 1; /* Number of terminating characters */ int rv, se; - if ((se = p->icom->read(p->icom, out, bsize, tc, ntc, to)) != 0) { + if ((se = p->icom->read(p->icom, out, bsize, NULL, tc, ntc, to)) != 0) { a1logd(p->log, 1, "dtp51_fcommand: serial i/o failure on read\n"); return icoms2dtp51_err(se); } @@ -169,7 +169,7 @@ double to) { /* Timout in seconts */ rv &= inst_imask; if (rv != DTP51_OK) { /* Clear the error */ char buf[MAX_MES_SIZE]; - p->icom->write_read(p->icom, "CE\r", buf, MAX_MES_SIZE, ">", 1, 0.5); + p->icom->write_read(p->icom, "CE\r", 0, buf, MAX_MES_SIZE, NULL, ">", 1, 0.5); } } } @@ -262,7 +262,7 @@ dtp51_init_coms(inst *pp, baud_rate br, flow_control fc, double tout) { return ev; /* Change the baud rate to the rate we've been told */ - if ((se = p->icom->write_read(p->icom, brc[bi], buf, MAX_MES_SIZE, ">", 1, 1.5)) != 0) { + if ((se = p->icom->write_read(p->icom, brc[bi], 0, buf, MAX_MES_SIZE, NULL, ">", 1, 1.5)) != 0) { if (extract_ec(buf) != DTP51_OK) return inst_coms_fail; } @@ -275,7 +275,7 @@ dtp51_init_coms(inst *pp, baud_rate br, flow_control fc, double tout) { } /* Loose a character (not sure why) */ - p->icom->write_read(p->icom, "\r", buf, MAX_MES_SIZE, ">", 1, 0.5); + p->icom->write_read(p->icom, "\r", 0, buf, MAX_MES_SIZE, NULL, ">", 1, 0.5); /* Check instrument is responding */ if ((ev = dtp51_command(p, "\r", buf, MAX_MES_SIZE, 1.5)) != inst_ok) diff --git a/spectro/dtp92.c b/spectro/dtp92.c index f86672e..9524326 100644 --- a/spectro/dtp92.c +++ b/spectro/dtp92.c @@ -61,6 +61,8 @@ #define DEFFC fc_none #define DEF_TIMEOUT 0.5 +#define MED_TIMEOUT 2.5 +#define MEAS_TIMEOUT 10.0 #define IGNORE_NEEDS_OFFSET_DRIFT_CAL_ERR @@ -120,7 +122,7 @@ dtp92_fcommand( double to) { /* Timout in seconds */ int rv, se; - if ((se = p->icom->write_read(p->icom, in, out, bsize, tc, ntc, to)) != 0) { + if ((se = p->icom->write_read(p->icom, in, 0, out, bsize, NULL, tc, ntc, to)) != 0) { a1logd(p->log, 1, "dtp92_fcommand: serial i/o failure on write_read '%s'\n",icoms_fix(in)); return icoms2dtp92_err(se); } @@ -137,7 +139,7 @@ dtp92_fcommand( rv &= inst_imask; if (rv != DTP92_OK) { /* Clear the error */ char buf[MAX_MES_SIZE]; - p->icom->write_read(p->icom, "CE\r", buf, MAX_MES_SIZE, ">", 1, 0.5); + p->icom->write_read(p->icom, "CE\r", 0, buf, MAX_MES_SIZE, NULL, ">", 1, 0.5); } } } @@ -182,6 +184,7 @@ dtp92_init_coms(inst *pp, baud_rate br, flow_control fc, double tout) { if (p->icom->port_type(p->icom) == icomt_usb) { #ifdef ENABLE_USB + int wr_ep, rd_ep; a1logd(p->log, 2, "dtp92_init_coms: About to init USB\n"); @@ -197,20 +200,27 @@ dtp92_init_coms(inst *pp, baud_rate br, flow_control fc, double tout) { /* 0x02 o Bulk 0x02 o Intr. */ /* */ /* Set config, interface, write end point, read end point, read quanta */ - if (itype == instDTP94) - se = p->icom->set_usb_port(p->icom, 1, 0x02, 0x81, icomuf_none, 0, NULL); - else - se = p->icom->set_usb_port(p->icom, 1, 0x01, 0x81, icomuf_none, 0, NULL); - if (se != ICOM_OK) { + if (itype == instDTP94) { + wr_ep = 0x02; + rd_ep = 0x81; + } else { + wr_ep = 0x01; + rd_ep = 0x81; + } + + /* The DTP94 will babble if a measure is interrupted, so reset it */ + /* on close to make sure it restarts correctly. */ + if ((se = p->icom->set_usb_port(p->icom, 1, wr_ep, rd_ep, icomuf_reset_before_close, + 0, NULL)) != ICOM_OK) { a1logd(p->log, 1, "dtp92_init_coms: set_usb_port failed ICOM err 0x%x\n",se); return dtp92_interp_code((inst *)p, icoms2dtp92_err(se)); } /* Blind reset it twice - it seems to sometimes hang up */ /* otherwise under OSX */ - dtp92_command(p, "0PR\r", buf, MAX_MES_SIZE, 0.5); - dtp92_command(p, "0PR\r", buf, MAX_MES_SIZE, 0.5); + dtp92_command(p, "0PR\r", buf, MAX_MES_SIZE, DEF_TIMEOUT); + dtp92_command(p, "0PR\r", buf, MAX_MES_SIZE, DEF_TIMEOUT); #else /* !ENABLE_USB */ a1logd(p->log, 1, "dtp92: Failed to find USB connection to instrument\n"); return inst_coms_fail; @@ -265,7 +275,7 @@ dtp92_init_coms(inst *pp, baud_rate br, flow_control fc, double tout) { return dtp92_interp_code((inst *)p, icoms2dtp92_err(se)); } - if (((ev = dtp92_command(p, "\r", buf, MAX_MES_SIZE, 0.5)) & inst_mask) + if (((ev = dtp92_command(p, "\r", buf, MAX_MES_SIZE, DEF_TIMEOUT)) & inst_mask) != inst_coms_fail) break; /* We've got coms or user abort */ @@ -293,7 +303,7 @@ dtp92_init_coms(inst *pp, baud_rate br, flow_control fc, double tout) { return ev; /* Change the baud rate to the rate we've been told */ - if ((se = p->icom->write_read(p->icom, brc[bi], buf, MAX_MES_SIZE, ">", 1, .2)) != 0) { + if ((se = p->icom->write_read(p->icom, brc[bi], 0, buf, MAX_MES_SIZE, NULL, ">", 1, .2)) != 0) { if (extract_ec(buf) != DTP92_OK) return inst_coms_fail; } @@ -306,7 +316,7 @@ dtp92_init_coms(inst *pp, baud_rate br, flow_control fc, double tout) { } /* Loose a character (not sure why) */ - p->icom->write_read(p->icom, "\r", buf, MAX_MES_SIZE, ">", 1, 0.1); + p->icom->write_read(p->icom, "\r", 0, buf, MAX_MES_SIZE, NULL, ">", 1, 0.1); #else /* !ENABLE_SERIAL */ a1logd(p->log, 1, "dtp92: Failed to find serial connection to instrument\n"); return inst_coms_fail; @@ -318,7 +328,7 @@ dtp92_init_coms(inst *pp, baud_rate br, flow_control fc, double tout) { /* Check instrument is responding, and reset it again. */ if ((ev = dtp92_command(p, "\r", buf, MAX_MES_SIZE, DEF_TIMEOUT)) != inst_ok - || (ev = dtp92_command(p, "0PR\r", buf, MAX_MES_SIZE, 2.0)) != inst_ok) { + || (ev = dtp92_command(p, "0PR\r", buf, MAX_MES_SIZE, MED_TIMEOUT)) != inst_ok) { a1logd(p->log, 1, "dtp92_init_coms: failed with ICOM 0x%x\n",ev); @@ -331,7 +341,7 @@ dtp92_init_coms(inst *pp, baud_rate br, flow_control fc, double tout) { char tbuf[100]; double odv = 0.0; printf("Got Offset Drift Cal error. Will try re-writing it\n"); - if ((ev = dtp92_command(p, "SD\r", buf, MAX_MES_SIZE, 2.0)) != inst_ok) + if ((ev = dtp92_command(p, "SD\r", buf, MAX_MES_SIZE, MED_TIMEOUT)) != inst_ok) error("Reading current offset drift value failed"); if (sscanf(buf, "%lf<", &odv) != 1) error("Unable to parse offset drift value"); @@ -380,11 +390,11 @@ dtp92_init_inst(inst *pp) { return inst_internal_error; /* Must establish coms before calling init */ /* Reset it ( without disconnecting USB or resetting baud rate etc.) */ - if ((ev = dtp92_command(p, "0PR\r", buf, MAX_MES_SIZE, 2.0)) != inst_ok) + if ((ev = dtp92_command(p, "0PR\r", buf, MAX_MES_SIZE, MED_TIMEOUT)) != inst_ok) return ev; /* Get the model and version number */ - if ((ev = dtp92_command(p, "SV\r", buf, MAX_MES_SIZE, DEF_TIMEOUT)) != inst_ok) + if ((ev = dtp92_command(p, "SV\r", buf, MAX_MES_SIZE, MED_TIMEOUT)) != inst_ok) return ev; /* Check that it is a DTP92, DTP92Q or DTP94 */ @@ -433,12 +443,12 @@ dtp92_init_inst(inst *pp) { return ev; /* Set to factory calibration */ - if ((ev = dtp92_command(p, "EFC\r", buf, MAX_MES_SIZE, 0.5)) != inst_ok) + if ((ev = dtp92_command(p, "EFC\r", buf, MAX_MES_SIZE, DEF_TIMEOUT)) != inst_ok) return ev; if (p->itype == instDTP94) { /* Compensate for offset drift */ - if ((ev = dtp92_command(p, "0117CF\r", buf, MAX_MES_SIZE, 0.5)) != inst_ok) + if ((ev = dtp92_command(p, "0117CF\r", buf, MAX_MES_SIZE, DEF_TIMEOUT)) != inst_ok) return ev; } @@ -600,7 +610,7 @@ instClamping clamp) { /* NZ if clamp XYZ/Lab to be +ve */ /* Take a reading */ /* (DTP94 has optional parameters, but the default is what we want, XYZ in cd/m^2) */ - if ((rv = dtp92_command(p, "RM\r", buf, MAX_RD_SIZE, 10.0)) != inst_ok) { + if ((rv = dtp92_command(p, "RM\r", buf, MAX_RD_SIZE, MEAS_TIMEOUT)) != inst_ok) { if ((rv & inst_imask) == DTP92_NEEDS_OFFSET_CAL) p->need_offset_cal = 1; else if ((rv & inst_imask) == DTP92_NEEDS_RATIO_CAL) /* DTP92 only */ @@ -660,6 +670,9 @@ double *ref_rate if (!p->inited) return inst_no_init; + if (ref_rate != NULL) + *ref_rate = 0.0; + /* Measure the refresh rate */ rv = dtp92_command(p, "00103RM\r", buf, MAX_RD_SIZE, 5.0); @@ -671,38 +684,64 @@ double *ref_rate if (sscanf(buf, "Hz %lf ", &refrate) != 1) { a1logd(p->log, 1, "dtp92_read_refrate rate: failed to parse string '%s'\n",buf); - *ref_rate = 0.0; return inst_misread; } - if (refrate == 0.0) { + + if (refrate == 0.0) return inst_misread; - } - *ref_rate = refrate; + + + if (ref_rate != NULL) + *ref_rate = refrate; + return inst_ok; } +static inst_code set_base_disp_type(dtp92 *p, int cbid); + /* Insert a colorimetric correction matrix in the instrument XYZ readings */ /* This is only valid for colorimetric instruments. */ /* To remove the matrix, pass NULL for the filter filename */ static inst_code dtp92_col_cor_mat( inst *pp, +disptech dtech, /* Use disptech_unknown if not known */ \ +int cbid, /* Calibration display type base ID, 1 if unknown */\ double mtx[3][3] ) { dtp92 *p = (dtp92 *)pp; + inst_code ev; if (!p->gotcoms) return inst_no_coms; if (!p->inited) return inst_no_init; + if ((ev = set_base_disp_type(p, cbid)) != inst_ok) + return ev; if (mtx == NULL) icmSetUnity3x3(p->ccmat); else icmCpy3x3(p->ccmat, mtx); - + + p->dtech = dtech; + p->refrmode = disptech_get_id(dtech)->refr; + p->cbid = 0; /* Can't be base type now */ + + if (p->log->debug >= 4) { + a1logd(p->log,4,"ccmat = %f %f %f\n", + p->ccmat[0][0], p->ccmat[0][1], p->ccmat[0][2]); + a1logd(p->log,4," %f %f %f\n", + p->ccmat[1][0], p->ccmat[1][1], p->ccmat[1][2]); + a1logd(p->log,4," %f %f %f\n\n", + p->ccmat[2][0], p->ccmat[2][1], p->ccmat[2][2]); + a1logd(p->log,4,"ucbid = %d, cbid = %d\n",p->ucbid, p->cbid); + a1logd(p->log,4,"\n"); + } + return inst_ok; } + /* Return needed and available inst_cal_type's */ static inst_code dtp92_get_n_a_cals(inst *pp, inst_cal_type *pn_cals, inst_cal_type *pa_cals) { dtp92 *p = (dtp92 *)pp; @@ -786,7 +825,7 @@ char id[CALIDLEN] /* Condition identifier (ie. white reference ID) */ } /* Do offset calibration */ - if ((ev = dtp92_command(p, "CO\r", buf, MAX_RD_SIZE, 12)) != inst_ok) + if ((ev = dtp92_command(p, "CO\r", buf, MAX_RD_SIZE, 12.0)) != inst_ok) return ev; *calt &= inst_calt_emis_offset; @@ -834,6 +873,9 @@ double *ref_rate if (!p->inited) return inst_no_init; + if (ref_rate != NULL) + *ref_rate = 0.0; + /* Get the last readings refresh rate */ rv = dtp92_command(p, "10103RM\r", buf, MAX_RD_SIZE, 5.0); @@ -845,13 +887,11 @@ double *ref_rate if (sscanf(buf, "Hz %lf ", &refrate) != 1) { a1logd(p->log, 1, "dtp92_read_refresh rate: failed to parse string '%s'\n",buf); - *ref_rate = 0.0; return inst_misread; } - if (refrate == 0.0) { + if (refrate == 0.0) return inst_misread; - } - *ref_rate = refrate; + return inst_ok; } @@ -987,7 +1027,7 @@ dtp92_del(inst *pp) { } /* Return the instrument mode capabilities */ -void dtp92_capabilities(inst *pp, +static void dtp92_capabilities(inst *pp, inst_mode *pcap1, inst2_capability *pcap2, inst3_capability *pcap3) { @@ -1020,7 +1060,7 @@ inst3_capability *pcap3) { } /* Check device measurement mode */ -inst_code dtp92_check_mode(inst *pp, inst_mode m) { +static inst_code dtp92_check_mode(inst *pp, inst_mode m) { inst_mode cap; if (!pp->gotcoms) @@ -1043,7 +1083,7 @@ inst_code dtp92_check_mode(inst *pp, inst_mode m) { } /* Set device measurement mode */ -inst_code dtp92_set_mode(inst *pp, inst_mode m) { +static inst_code dtp92_set_mode(inst *pp, inst_mode m) { inst_code ev; if ((ev = dtp92_check_mode(pp, m)) != inst_ok) @@ -1052,13 +1092,14 @@ inst_code dtp92_set_mode(inst *pp, inst_mode m) { return inst_ok; } -inst_disptypesel dtp92_disptypesel[2] = { +static inst_disptypesel dtp92_disptypesel[2] = { { inst_dtflags_default, /* flags */ 2, /* cbid */ "c", /* sel */ "CRT display", /* desc */ 1, /* refr */ + disptech_crt, /* disptype */ 0 /* ix */ }, { @@ -1067,17 +1108,19 @@ inst_disptypesel dtp92_disptypesel[2] = { "", "", 0, + disptech_none, 0 } }; -inst_disptypesel dtp94_disptypesel[4] = { +static inst_disptypesel dtp94_disptypesel[4] = { { inst_dtflags_default, 1, "l", "LCD display", 0, + disptech_lcd, 2 }, { @@ -1086,6 +1129,7 @@ inst_disptypesel dtp94_disptypesel[4] = { "c", /* sel */ "CRT display", /* desc */ 1, /* refr */ + disptech_crt, /* disptype */ 1 /* ix */ }, { @@ -1094,6 +1138,7 @@ inst_disptypesel dtp94_disptypesel[4] = { "g", "Generic display", 0, /* Might be auto refresh detect ? */ + disptech_unknown, 0 }, { @@ -1102,6 +1147,7 @@ inst_disptypesel dtp94_disptypesel[4] = { "", "", 0, + disptech_none, 0 } }; @@ -1144,36 +1190,83 @@ int recreate /* nz to re-check for new ccmx & ccss files */ /* Given a display type entry, setup for that type */ static inst_code set_disp_type(dtp92 *p, inst_disptypesel *dentry) { - p->icx = dentry->ix; - p->cbid = dentry->cbid; + if (dentry->flags & inst_dtflags_ccmx) { + inst_code ev; + if ((ev = set_base_disp_type(p, dentry->cc_cbid)) != inst_ok) + return ev; + icmCpy3x3(p->ccmat, dentry->mat); + p->dtech = dentry->dtech; + p->cbid = 0; /* Can't be a base type */ + + } else { /* Native */ + p->icx = dentry->ix; + p->dtech = dentry->dtech; + p->cbid = dentry->cbid; + p->ucbid = dentry->cbid; /* is underying base if dentry is base selection */ + + if (p->itype == instDTP92) { + if (p->icx != 0) + return inst_unsupported; + + } else { /* DTP94 */ + static char buf[MAX_MES_SIZE]; + inst_code ev; + + if (p->icx == 0) { /* Generic/Non-specific */ + if ((ev = dtp92_command(p, "0016CF\r", buf, MAX_MES_SIZE, DEF_TIMEOUT)) != inst_ok) + return ev; + } else if (p->icx == 1) { /* CRT */ + if ((ev = dtp92_command(p, "0116CF\r", buf, MAX_MES_SIZE, DEF_TIMEOUT)) != inst_ok) + return ev; + } else if (p->icx == 2) { /* LCD */ + if ((ev = dtp92_command(p, "0216CF\r", buf, MAX_MES_SIZE, DEF_TIMEOUT)) != inst_ok) + return ev; + } else { + return inst_unsupported; + } + } + icmSetUnity3x3(p->ccmat); + } p->refrmode = dentry->refr; - if (p->itype == instDTP92) { - if (p->icx != 0) - return inst_unsupported; + if (p->log->debug >= 4) { + a1logd(p->log,4,"ccmat = %f %f %f\n", + p->ccmat[0][0], p->ccmat[0][1], p->ccmat[0][2]); + a1logd(p->log,4," %f %f %f\n", + p->ccmat[1][0], p->ccmat[1][1], p->ccmat[1][2]); + a1logd(p->log,4," %f %f %f\n\n", + p->ccmat[2][0], p->ccmat[2][1], p->ccmat[2][2]); + a1logd(p->log,4,"ucbid = %d, cbid = %d\n",p->ucbid, p->cbid); + a1logd(p->log,4,"\n"); + } - } else { /* DTP94 */ - static char buf[MAX_MES_SIZE]; - inst_code ev; - - if (p->icx == 0) { /* Generic/Non-specific */ - if ((ev = dtp92_command(p, "0016CF\r", buf, MAX_MES_SIZE, DEF_TIMEOUT)) != inst_ok) - return ev; - } else if (p->icx == 1) { /* CRT */ - if ((ev = dtp92_command(p, "0116CF\r", buf, MAX_MES_SIZE, DEF_TIMEOUT)) != inst_ok) - return ev; - } else if (p->icx == 2) { /* LCD */ - if ((ev = dtp92_command(p, "0216CF\r", buf, MAX_MES_SIZE, DEF_TIMEOUT)) != inst_ok) - return ev; - } else { - return inst_unsupported; - } + return inst_ok; +} + +/* Set the display type */ +static inst_code dtp92_set_disptype(inst *pp, int ix) { + dtp92 *p = (dtp92 *)pp; + inst_code ev; + inst_disptypesel *dentry; + + if (!p->gotcoms) + return inst_no_coms; + if (!p->inited) + return inst_no_init; + + if (p->dtlist == NULL) { + if ((ev = inst_creat_disptype_list(pp, &p->ndtlist, &p->dtlist, + p->_dtlist, 0 /* doccss*/, 1 /* doccmx */)) != inst_ok) + return ev; } - if (dentry->flags & inst_dtflags_ccmx) { - icmCpy3x3(p->ccmat, dentry->mat); - } else { - icmSetUnity3x3(p->ccmat); + if (ix < 0 || ix >= p->ndtlist) + return inst_unsupported; + + dentry = &p->dtlist[ix]; + + if ((ev = set_disp_type(p, dentry)) != inst_ok) { + return ev; } return inst_ok; @@ -1205,35 +1298,56 @@ static inst_code set_default_disp_type(dtp92 *p) { return inst_ok; } -/* Set the display type */ -static inst_code dtp92_set_disptype(inst *pp, int ix) { - dtp92 *p = (dtp92 *)pp; +/* Setup the display type to the given base type */ +static inst_code set_base_disp_type(dtp92 *p, int cbid) { inst_code ev; - inst_disptypesel *dentry; - - if (!p->gotcoms) - return inst_no_coms; - if (!p->inited) - return inst_no_init; + int i; + if (cbid == 0) { + a1loge(p->log, 1, "dtp92 set_base_disp_type: can't set base display type of 0\n"); + return inst_wrong_setup; + } if (p->dtlist == NULL) { - if ((ev = inst_creat_disptype_list(pp, &p->ndtlist, &p->dtlist, - p->_dtlist, 0 /* doccss*/, 1 /* doccmx */)) != inst_ok) + if ((ev = inst_creat_disptype_list((inst *)p, &p->ndtlist, &p->dtlist, + dtp92_disptypesel, 0 /* doccss*/, 1 /* doccmx */)) != inst_ok) return ev; } - if (ix < 0 || ix >= p->ndtlist) - return inst_unsupported; - - dentry = &p->dtlist[ix]; - - if ((ev = set_disp_type(p, dentry)) != inst_ok) { + for (i = 0; !(p->dtlist[i].flags & inst_dtflags_end); i++) { + if (!(p->dtlist[i].flags & inst_dtflags_ccmx) /* Prevent infinite recursion */ + && p->dtlist[i].cbid == cbid) + break; + } + if (p->dtlist[i].flags & inst_dtflags_end) { + a1loge(p->log, 1, "set_base_disp_type: failed to find cbid %d!\n",cbid); + return inst_wrong_setup; + } + if ((ev = set_disp_type(p, &p->dtlist[i])) != inst_ok) { return ev; } return inst_ok; } +/* Get the disptech and other corresponding info for the current */ +/* selected display type. Returns disptype_unknown by default. */ +/* Because refrmode can be overridden, it may not match the refrmode */ +/* of the dtech. (Pointers may be NULL if not needed) */ +static inst_code dtp92_get_disptechi( +inst *pp, +disptech *dtech, +int *refrmode, +int *cbid) { + dtp92 *p = (dtp92 *)pp; + if (dtech != NULL) + *dtech = p->dtech; + if (refrmode != NULL) + *refrmode = p->refrmode; + if (cbid != NULL) + *cbid = p->cbid; + return inst_ok; +} + /* * set or reset an optional mode * @@ -1259,24 +1373,6 @@ dtp92_get_set_opt(inst *pp, inst_opt_type m, ...) if (!p->inited) return inst_no_init; - /* Get the display type information */ - if (m == inst_opt_get_dtinfo) { - va_list args; - int *refrmode, *cbid; - - va_start(args, m); - refrmode = va_arg(args, int *); - cbid = va_arg(args, int *); - va_end(args); - - if (refrmode != NULL) - *refrmode = p->refrmode; - if (cbid != NULL) - *cbid = p->cbid; - - return inst_ok; - } - return inst_unsupported; } @@ -1297,6 +1393,7 @@ extern dtp92 *new_dtp92(icoms *icom, instType itype) { p->set_mode = dtp92_set_mode; p->get_disptypesel = dtp92_get_disptypesel; p->set_disptype = dtp92_set_disptype; + p->get_disptechi = dtp92_get_disptechi; p->get_set_opt = dtp92_get_set_opt; p->read_sample = dtp92_read_sample; p->read_refrate = dtp92_read_refrate; @@ -1312,6 +1409,7 @@ extern dtp92 *new_dtp92(icoms *icom, instType itype) { icmSetUnity3x3(p->ccmat); /* Set the colorimeter correction matrix to do nothing */ set_base_disptype_list(p); + p->dtech = disptech_unknown; return p; } diff --git a/spectro/dtp92.h b/spectro/dtp92.h index 7add3e0..317fb7a 100644 --- a/spectro/dtp92.h +++ b/spectro/dtp92.h @@ -85,7 +85,9 @@ struct _dtp92 { inst_disptypesel *dtlist; /* Display Type list */ int ndtlist; /* Number of valid dtlist entries */ int icx; /* Internal calibration index, 0 = CRT, 1 = LCD */ - int cbid; /* calibration base ID, 0 if not a base */ + disptech dtech; /* Display technology enum */ + int cbid; /* current calibration base ID, 0 if not a base */ + int ucbid; /* Underlying base ID if being used for matrix, 0 othewise */ int refrmode; /* 0 for constant, 1 for refresh display */ double ccmat[3][3]; /* Colorimeter correction matrix */ diff --git a/spectro/ex1.c b/spectro/ex1.c new file mode 100644 index 0000000..06f5597 --- /dev/null +++ b/spectro/ex1.c @@ -0,0 +1,1299 @@ + +/* + * Argyll Color Correction System + * + * Image Engineering EX1 related functions + * + * Author: Graeme W. Gill + * Date: 4/4/2015 + * + * Copyright 1996 - 2015, Graeme W. Gill + * All rights reserved. + * + * This material is licenced under the GNU GENERAL PUBLIC LICENSE Version 2 or later :- + * see the License2.txt file for licencing details. + * + * Based on specbos.c + */ + +/* + If you make use of the instrument driver code here, please note + that it is the author(s) of the code who take responsibility + for its operation. Any problems or queries regarding driving + instruments with the Argyll drivers, should be directed to + the Argyll's author(s), and not to any other party. + + If there is some instrument feature or function that you + would like supported here, it is recommended that you + contact Argyll's author(s) first, rather than attempt to + modify the software yourself, if you don't have firm knowledge + of the instrument communicate protocols. There is a chance + that an instrument could be damaged by an incautious command + sequence, and the instrument companies generally cannot and + will not support developers that they have not qualified + and agreed to support. + */ + +/* + + TTBD: + +*/ + +#include +#include +#include +#include +#include +#include +#ifndef SALONEINSTLIB +#include "copyright.h" +#include "aconfig.h" +#include "numlib.h" +#else /* !SALONEINSTLIB */ +#include "sa_config.h" +#include "numsup.h" +#endif /* !SALONEINSTLIB */ +#include "xspect.h" +#include "insttypes.h" +#include "conv.h" +#include "icoms.h" +#include "ex1.h" + +static inst_code ex1_interp_code(inst *pp, int ec); + +#define MAX_MES_SIZE 500 /* Maximum normal message reply size */ +#define MAX_RD_SIZE 8000 /* Maximum reading message reply size */ + +/* Interpret an icoms error into a EX1 error */ +static int icoms2ex1_err(int se) { + if (se != ICOM_OK) { + if (se & ICOM_TO) + return EX1_TIMEOUT; + return EX1_COMS_FAIL; + } + return EX1_OK; +} + +/* Debug - dump a command packet at debug level deb1 */ +static void dump_command(ex1 *p, ORD8 *buf, int len, int debl) { + if (debl < p->log->debug) + return; + + if (len < 64) { + a1logd(p->log, 4, "Command packet too short (%d bytes)\n",len); + return; + } + + if (buf[0] != 0xC1 || buf[1] != 0xC0) { + a1logd(p->log, 4, "Command missing start bytes (0x%02x, 0x%02x)\n",buf[0],buf[1]); + } + + // ~~~~999 + // etc. +} + +/* Do a full command/response exchange with the ex1 */ +/* (This level is not multi-thread safe) */ +/* Return the ex1 error code. */ +static int +ex1_fcommand( +ex1 *p, +char *in, /* In string */ +char *out, /* Out string buffer */ +int bsize, /* Out buffer size */ +double to, /* Timeout in seconds */ +int ntc, /* Number or termination chars */ +int ctype, /* 0 = normal, 1 = *init, 2 = refr reading */ +int nd /* nz to disable debug messages */ +) { + int se; + int bread = 0; + char *cp, *tc = "", *dp; + + // ~~~99 + return EX1_NOT_IMP; + + if (ctype == 0) + tc = "\r\006\025"; /* Return, Ack or Nak */ + else if (ctype == 1) + tc = "\007\025"; /* Bell or Nak */ + else if (ctype == 2) + tc = "\r\025"; /* Return or Nak */ + + se = p->icom->write_read(p->icom, in, 0, out, bsize, &bread, tc, ntc, to); + + /* Because we are sometimes waiting for 3 x \r characters to terminate the read, */ + /* we will instead time out on getting a single NAK (\025), so convert timout */ + /* with bytes to non-timeout, so that we can process the error. */ + if (se == ICOM_TO && bread > 0) + se = ICOM_OK; + + if (se != 0) { + if (!nd) a1logd(p->log, 1, "ex1_fcommand: serial i/o failure on write_read '%s' 0x%x\n",icoms_fix(in),se); + return icoms2ex1_err(se); + } + + /* See if there was an error, and remove any enquire codes */ + for (dp = cp = out; *cp != '\000' && (dp - out) < bsize; cp++) { + if (*cp == '\025') { /* Got a NAK */ + char buf[100]; + + if ((se = p->icom->write_read(p->icom, "*stat:err?\r", 0, buf, 100, NULL, "\r", 1, 1.0)) != 0) { + if (!nd) a1logd(p->log, 1, "ex1_fcommand: serial i/o failure on write_read '%s'\n",icoms_fix(in)); + return icoms2ex1_err(se);; + } + if (sscanf(buf, "Error Code: %d ",&se) != 1) { + if (!nd) a1logd(p->log, 1, "ex1_fcommand: failed to parse error code '%s'\n",icoms_fix(buf)); + return EX1_DATA_PARSE_ERROR; + } + + if (!nd) a1logd(p->log, 1, "Got ex1 error code %d\n",se); + break; + } + if (*cp == '\005') /* Got an Enquire */ + continue; /* remove it */ + *dp = *cp; + dp++; + } + out[bsize-1] = '\000'; + + if (!nd) a1logd(p->log, 4, "ex1_fcommand: command '%s' returned '%s' bytes %d, err 0x%x\n", + icoms_fix(in), icoms_fix(out),strlen(out), se); + return se; +} + +/* Do a normal command/response echange with the ex1. */ +/* (This level is not multi-thread safe) */ +/* Return the inst code */ +static inst_code +ex1_command( +struct _ex1 *p, +char *in, /* In string */ +char *out, /* Out string buffer */ +int bsize, /* Out buffer size */ +double to) { /* Timout in seconds */ + int rv = ex1_fcommand(p, in, out, bsize, to, 1, 0, 0); + return ex1_interp_code((inst *)p, rv); +} + +/* Read another line of response */ +/* (This level is not multi-thread safe) */ +/* Return the inst code */ +static int +ex1_readresp( +struct _ex1 *p, +char *out, /* Out string buffer */ +int bsize, /* Out buffer size */ +double to /* Timeout in seconds */ +) { + int rv, se; + char *cp, *tc = "\r\006\025"; /* Return, Ack or Nak */ + + // ~~~999 + return inst_unsupported; + + if ((se = p->icom->read(p->icom, out, bsize, NULL, tc, 1, to)) != 0) { + a1logd(p->log, 1, "ex1_readresp: serial i/o failure\n"); + return icoms2ex1_err(se); + } + return inst_ok; +} + +/* Establish communications with a ex1 */ +/* Return EX1_COMS_FAIL on failure to establish communications */ +static inst_code +ex1_init_coms(inst *pp, baud_rate br, flow_control fc, double tout) { + ex1 *p = (ex1 *) pp; + char buf[MAX_MES_SIZE]; + baud_rate brt[] = { baud_921600, baud_115200, baud_38400, baud_nc }; + instType itype = pp->itype; + int se; + + inst_code ev = inst_ok; + + a1logd(p->log, 2, "ex1_init_coms: called\n"); + + amutex_lock(p->lock); + + if (p->icom->port_type(p->icom) != icomt_usb) { + amutex_unlock(p->lock); + a1logd(p->log, 1, "ex1_init_coms: wrong communications type for device!\n"); + return inst_coms_fail; + } + + // ~~~99 check it is responding. + + // ~~~99 check the model type + + a1logd(p->log, 2, "ex1_init_coms: init coms has suceeded\n"); + + p->gotcoms = 1; + + amutex_unlock(p->lock); + + return inst_ok; +} + +/* Initialise the EX1 */ +/* return non-zero on an error, with dtp error code */ +static inst_code +ex1_init_inst(inst *pp) { + ex1 *p = (ex1 *)pp; + char mes[100]; + char buf[MAX_MES_SIZE]; + inst_code ev = inst_ok; + + a1logd(p->log, 2, "ex1_init_inst: called\n"); + + if (p->gotcoms == 0) + return inst_internal_error; /* Must establish coms before calling init */ + + amutex_lock(p->lock); + + /* Restore the instrument to it's default settings */ + if ((ev = ex1_command(p, "*conf:default\r", buf, MAX_MES_SIZE, 1.0)) != inst_ok) + return ev; + + /* Set calibration type to auto on ambient cap */ + if ((ev = ex1_command(p, "*para:calibn 0\r", buf, MAX_MES_SIZE, 1.0)) != inst_ok) { + amutex_unlock(p->lock); + return ev; + } + + /* Set auto exposure/integration time */ + /* Set calibration type to auto on ambient cap */ + if ((ev = ex1_command(p, "*para:expo 1\r", buf, MAX_MES_SIZE, 1.0)) != inst_ok + || (ev = ex1_command(p, "*para:adapt 2\r", buf, MAX_MES_SIZE, 1.0)) != inst_ok) { + amutex_unlock(p->lock); + return ev; + } + + p->measto = 20.0; /* default */ + + if (p->model == 1211) + p->measto = 5.0; /* Same overall time as i1d3 ?? */ + else if (p->model == 1201) + p->measto = 15.0; + + /* Set maximum integration time to speed up display measurement */ + sprintf(mes, "*conf:maxtin %d\r", (int)(p->measto * 1000.0+0.5)); + if ((ev = ex1_command(p, mes, buf, MAX_MES_SIZE, 1.0)) != inst_ok) { + amutex_unlock(p->lock); + return ev; + } + + /* Set the measurement function to be Radiometric spectrum */ + if ((ev = ex1_command(p, "*conf:func 6\r", buf, MAX_MES_SIZE, 1.0)) != inst_ok) { + amutex_unlock(p->lock); + return ev; + } + + /* Set the measurement format to ASCII */ + if ((ev = ex1_command(p, "*conf:form 4\r", buf, MAX_MES_SIZE, 1.0)) != inst_ok) { + amutex_unlock(p->lock); + return ev; + } + + if ((ev = ex1_command(p, "*para:wavbeg?\r", buf, MAX_MES_SIZE, 1.0)) != inst_ok) { + amutex_unlock(p->lock); + return ev; + } + if (sscanf(buf, "Predefined start wave: %lf ",&p->wl_short) != 1) { + amutex_unlock(p->lock); + a1loge(p->log, 1, "ex1_init_inst: failed to parse start wave\n"); + return ev; + } + a1logd(p->log, 1, " Short wl range %f\n",p->wl_short); + + if ((ev = ex1_command(p, "*para:wavend?\r", buf, MAX_MES_SIZE, 1.0)) != inst_ok) { + amutex_unlock(p->lock); + return ev; + } + if (sscanf(buf, "Predefined end wave: %lf ",&p->wl_long) != 1) { + amutex_unlock(p->lock); + a1loge(p->log, 1, "ex1_init_inst: failed to parse end wave\n"); + return ev; + } + if (p->wl_long > 830.0) /* Could go to 1000 with 1211 */ + p->wl_long = 830.0; + + a1logd(p->log, 1, " Long wl range %f\n",p->wl_long); + + p->nbands = (int)((p->wl_long - p->wl_short + 1.0)/1.0 + 0.5); + + /* Set the wavelength range and resolution */ + sprintf(mes, "*conf:wran %d %d 1\r", (int)(p->wl_short+0.5), (int)(p->wl_long+0.5)); + if ((ev = ex1_command(p, mes, buf, MAX_MES_SIZE, 1.0)) != inst_ok) { + amutex_unlock(p->lock); + return ev; + } + + /* Set to average just 1 reading */ + if ((ev = ex1_command(p, "*conf:aver 1\r", buf, MAX_MES_SIZE, 1.0)) != inst_ok) { + amutex_unlock(p->lock); + return ev; + } + + if (p->log->verb) { + int val; + char *sp; + + if ((ev = ex1_command(p, "*idn?\r", buf, MAX_MES_SIZE, 1.0)) != inst_ok) { + amutex_unlock(p->lock); + return ev; + } + if ((sp = strrchr(buf, '\r')) != NULL) + *sp = '\000'; + a1logv(p->log, 1, " Identificaton: %s\n",buf); + + if ((ev = ex1_command(p, "*vers?\r", buf, MAX_MES_SIZE, 1.0)) != inst_ok) { + amutex_unlock(p->lock); + return ev; + } + + if ((sp = strrchr(buf, '\r')) != NULL) + *sp = '\000'; + a1logv(p->log, 1, " Firmware: %s\n",buf); + + if ((ev = ex1_command(p, "*para:spnum?\r", buf, MAX_MES_SIZE, 1.0)) != inst_ok) { + amutex_unlock(p->lock); + return ev; + } + if (sscanf(buf, "spectrometer number: %d ",&val) == 1) { + a1logv(p->log, 1, " Spectrometer number: %d\n",val); + } + + if ((ev = ex1_command(p, "*para:serno?\r", buf, MAX_MES_SIZE, 1.0)) != inst_ok) { + amutex_unlock(p->lock); + return ev; + } + if (sscanf(buf, "serial number: %d ",&val) == 1) { + a1logv(p->log, 1, " Serial number: %d\n",val); + } + } + + p->inited = 1; + a1logd(p->log, 2, "ex1_init_inst: instrument inited OK\n"); + amutex_unlock(p->lock); + + return inst_ok; +} + +static inst_code ex1_imp_measure_set_refresh(ex1 *p); +static inst_code ex1_imp_set_refresh(ex1 *p); + +/* Get the ambient diffuser position */ +/* (This is not multithread safe) */ +static inst_code +ex1_get_diffpos( + ex1 *p, /* Object */ + int *pos, /* 0 = display, 1 = ambient */ + int nd /* nz = no debug message */ +) { + char buf[MAX_RD_SIZE]; + int ec; + + /* See if we're in emissive or ambient mode */ + if ((ec = ex1_fcommand(p, "*contr:mhead?\r", buf, MAX_MES_SIZE, 1.0, 1, 0, nd)) != inst_ok) { + return ex1_interp_code((inst *)p, ec); + } + if (sscanf(buf, "mhead: %d ",pos) != 1) { + a1logd(p->log, 2, "ex1_init_coms: unrecognised measuring head string '%s'\n",icoms_fix(buf)); + return inst_protocol_error; + } + return inst_ok; +} + +/* Get the target laser state */ +/* (This is not multithread safe) */ +static inst_code +ex1_get_target_laser( + ex1 *p, /* Object */ + int *laser, /* 0 = off, 1 = on */ + int nd /* nz = no debug message */ +) { + char buf[MAX_RD_SIZE]; + int ec; + int lstate; + + if ((ec = ex1_fcommand(p, "*contr:laser?\r", buf, MAX_MES_SIZE, 1.0, 1, 0, nd)) != inst_ok) { + return ex1_interp_code((inst *)p, ec); + } + if (sscanf(buf, "laser: %d ",&lstate) != 1) { + a1loge(p->log, 2, "ex1_get_target_laser: failed to parse laser state\n"); + return inst_protocol_error; + } + *laser = lstate; + return inst_ok; +} + +/* Read a single sample */ +/* Return the dtp error code */ +static inst_code +ex1_read_sample( +inst *pp, +char *name, /* Strip name (7 chars) */ +ipatch *val, /* Pointer to instrument patch value */ +instClamping clamp) { /* NZ if clamp XYZ/Lab to be +ve */ + ex1 *p = (ex1 *)pp; + char buf[MAX_RD_SIZE]; + int ec; + int user_trig = 0; + int pos = -1; + inst_code rv = inst_protocol_error; + + if (!p->gotcoms) + return inst_no_coms; + if (!p->inited) + return inst_no_init; + + amutex_lock(p->lock); + + if (p->trig == inst_opt_trig_user) { + amutex_unlock(p->lock); + + if (p->uicallback == NULL) { + a1logd(p->log, 1, "ex1: inst_opt_trig_user but no uicallback function set!\n"); + return inst_unsupported; + } + + for (;;) { + if ((rv = p->uicallback(p->uic_cntx, inst_armed)) != inst_ok) { + if (rv == inst_user_abort) { + return rv; /* Abort */ + } + if (rv == inst_user_trig) { + user_trig = 1; + break; /* Trigger */ + } + } + msec_sleep(200); + } + /* Notify of trigger */ + if (p->uicallback) + p->uicallback(p->uic_cntx, inst_triggered); + amutex_lock(p->lock); + + /* Progromatic Trigger */ + } else { + /* Check for abort */ + if (p->uicallback != NULL + && (rv = p->uicallback(p->uic_cntx, inst_armed)) == inst_user_abort) { + amutex_unlock(p->lock); + return rv; /* Abort */ + } + } + + /* See if we're in emissive or ambient mode */ + if ((rv = ex1_get_diffpos(p, &pos, 0) ) != inst_ok) { + amutex_unlock(p->lock); + return rv; + } + + /* Attempt a refresh display frame rate calibration if needed */ + if (p->refrmode != 0 && p->rrset == 0) { + a1logd(p->log, 1, "ex1: need refresh rate calibration before measure\n"); + if ((rv = ex1_imp_measure_set_refresh(p)) != inst_ok) { + amutex_unlock(p->lock); + return rv; + } + } + + /* Trigger a measurement */ + if ((ec = ex1_fcommand(p, "*init\r", buf, MAX_MES_SIZE, 5.0 * p->measto + 10.0 , 1, 1, 0)) != EX1_OK) { + amutex_unlock(p->lock); + return ex1_interp_code((inst *)p, ec); + } + + + + if (ec == EX1_OK) { + + if (sscanf(buf, " X: %lf Y: %lf Z: %lf ", + &val->XYZ[0], &val->XYZ[1], &val->XYZ[2]) != 3) { + amutex_unlock(p->lock); + a1logd(p->log, 1, "ex1_read_sample: failed to parse '%s'\n",buf); + return inst_protocol_error; + } + + amutex_unlock(p->lock); + return ex1_interp_code((inst *)p, ec); + } + + /* This may not change anything since instrument may clamp */ + if (clamp) + icmClamp3(val->XYZ, val->XYZ); + val->loc[0] = '\000'; + if (p->mode & inst_mode_ambient) { + val->mtype = inst_mrt_ambient; + } else + val->mtype = inst_mrt_emission; + val->XYZ_v = 1; /* These are absolute XYZ readings */ + val->sp.spec_n = 0; + val->duration = 0.0; + rv = inst_ok; + + + /* spectrum data is returned only if requested */ + if (p->mode & inst_mode_spectral) { + int tries, maxtries = 5; + int i, xsize; + char *cp, *ncp; + + /* (Format 12 doesn't seem to work on the 1211) */ + /* (Format 9 reportedly doesn't work on the 1201) */ + /* The folling works on the 1211 and is reported to work on the 1201 */ + + /* Because the ex1 doesn't use flow control in its */ + /* internal serial communications, it may overrun */ + /* the FT232R buffer, so retry fetching the spectra if */ + /* we get a comm error or parsing error. */ + for (tries = 0;;) { + + /* Fetch the spectral readings */ + ec = ex1_fcommand(p, "*fetch:sprad\r", buf, MAX_RD_SIZE, 2.0, 2+p->nbands+1, 0, 0); + tries++; + if (ec != EX1_OK) { + if (tries > maxtries) { + amutex_unlock(p->lock); + a1logd(p->log, 1, "ex1_fcommand: failed with 0x%x\n",ec); + return ex1_interp_code((inst *)p, ec); + } + continue; /* Retry the fetch */ + } + + val->sp.spec_n = p->nbands; + val->sp.spec_wl_short = p->wl_short; + val->sp.spec_wl_long = p->wl_long; + + /* Spectral data is in W/nm/m^2 */ + val->sp.norm = 1.0; + cp = buf; + for (i = -2; i < val->sp.spec_n; i++) { + if ((ncp = strchr(cp, '\r')) == NULL) { + a1logd(p->log, 1, "ex1_read_sample: failed to parse spectra at %d/%d\n",i+1,val->sp.spec_n); + if (tries > maxtries) { + amutex_unlock(p->lock); + return inst_protocol_error; + } + continue; /* Retry the fetch and parse */ + } + *ncp = '\000'; + if (i >= 0) { + a1logd(p->log, 6, "sample %d/%d got %f from '%s'\n",i+1,val->sp.spec_n,atof(cp),cp); + val->sp.spec[i] = 1000.0 * atof(cp); /* Convert to mW/m^2/nm */ + if (p->mode & inst_mode_ambient) + val->mtype = inst_mrt_ambient; + } + cp = ncp+1; + } + /* We've parsed correctly, so don't retry */ + break; + } + a1logd(p->log, 1, "ex1_read_sample: got total %d samples/%d expected in %d tries\n",i,val->sp.spec_n, tries); + } + amutex_unlock(p->lock); + + + if (user_trig) + return inst_user_trig; + return rv; +} + +/* Set the instrument to match the current refresh settings */ +/* (Not thread safe) */ +static inst_code +ex1_imp_set_refresh(ex1 *p) { + char buf[MAX_MES_SIZE]; + inst_code rv; + + if (p->model == 1201) + return inst_unsupported; + + /* Set synchronised read if we should do so */ + if (p->refrmode != 0 && p->refrvalid) { + char mes[100]; + if ((rv = ex1_command(p, "*conf:cycmod 1\r", buf, MAX_MES_SIZE, 1.0)) != inst_ok) { + return rv; + } + sprintf(mes,"*conf:cyctim %f\r",p->refperiod * 1e6); + if ((rv = ex1_command(p, mes, buf, MAX_MES_SIZE, 1.0)) != inst_ok) { + return rv; + } + a1logd(p->log,5,"ex1_imp_set_refresh set refresh rate to %f Hz\n",1.0/p->refperiod); + } else { + if ((rv = ex1_command(p, "*conf:cycmod 0\r", buf, MAX_MES_SIZE, 1.0)) != inst_ok) { + return rv; + } + a1logd(p->log,5,"ex1_imp_set_refresh set non-refresh mode\n"); + } + return inst_ok; +} + +/* Implementation of read refresh rate */ +/* (Not thread safe) */ +/* Return 0.0 if none detectable */ +static inst_code +ex1_imp_measure_refresh( +ex1 *p, +double *ref_rate +) { + char buf[MAX_MES_SIZE], *cp; + double refperiod = 0.0; + int ec; + inst_code rv; + + if (ref_rate != NULL) + *ref_rate = 0.0; + + if (p->model == 1201) + return inst_unsupported; + + /* Make sure the target laser is off */ + if ((rv = ex1_command(p, "*contr:laser 0\r", buf, MAX_MES_SIZE, 1.0)) != inst_ok) { + return rv; + } + + if ((ec = ex1_fcommand(p, "*contr:cyctim 200 4000\r", buf, MAX_MES_SIZE, 5.0, 1, 2, 0)) != EX1_OK) { + return ex1_interp_code((inst *)p, ec); + } + + if ((cp = strchr(buf, 'c')) == NULL) + cp = buf; + if (sscanf(cp, "cyctim[ms]: %lf ", &refperiod) != 1) { + a1logd(p->log, 1, "ex1_read_refrate rate: failed to parse string '%s'\n",icoms_fix(buf)); + *ref_rate = 0.0; + return inst_misread; + } + + if (refperiod == 0.0) + *ref_rate = 0.0; + else + *ref_rate = 1000.0/refperiod; + + return inst_ok; +} + +/* Read an emissive refresh rate */ +static inst_code +ex1_read_refrate( +inst *pp, +double *ref_rate +) { + ex1 *p = (ex1 *)pp; + char buf[MAX_MES_SIZE]; + double refrate; + inst_code rv; + + if (!p->gotcoms) + return inst_no_coms; + if (!p->inited) + return inst_no_init; + + if (ref_rate != NULL) + *ref_rate = 0.0; + + amutex_lock(p->lock); + if ((rv = ex1_imp_measure_refresh(p, &refrate)) != inst_ok) { + amutex_unlock(p->lock); + return rv; + } + amutex_unlock(p->lock); + + if (refrate == 0.0) + return inst_misread; + + if (ref_rate != NULL) + *ref_rate = refrate; + + return inst_ok; +} + +/* Measure and then set refperiod, refrate if possible */ +/* (Not thread safe) */ +static inst_code +ex1_imp_measure_set_refresh( + ex1 *p /* Object */ +) { + inst_code rv; + double refrate = 0.0; + int mul; + double pval; + + if ((rv = ex1_imp_measure_refresh(p, &refrate)) != inst_ok) { + return rv; + } + + if (refrate != 0.0) { + p->refrate = refrate; + p->refrvalid = 1; + p->refperiod = 1.0/refrate; + } else { + p->refrate = 0.0; + p->refrvalid = 0; + p->refperiod = 0.0; + } + p->rrset = 1; + + if ((rv = ex1_imp_set_refresh(p)) != inst_ok) { + return rv; + } + + return inst_ok; +} + +/* Measure and then set refperiod, refrate if possible */ +static inst_code +ex1_measure_set_refresh( + ex1 *p /* Object */ +) { + int rv; + + amutex_lock(p->lock); + rv = ex1_imp_measure_set_refresh(p); + amutex_unlock(p->lock); + return rv; +} + +/* Return needed and available inst_cal_type's */ +static inst_code ex1_get_n_a_cals(inst *pp, inst_cal_type *pn_cals, inst_cal_type *pa_cals) { + ex1 *p = (ex1 *)pp; + inst_cal_type n_cals = inst_calt_none; + inst_cal_type a_cals = inst_calt_none; + + if (p->refrmode != 0) { + if (p->rrset == 0) + n_cals |= inst_calt_ref_freq; + a_cals |= inst_calt_ref_freq; + } + + if (pn_cals != NULL) + *pn_cals = n_cals; + + if (pa_cals != NULL) + *pa_cals = a_cals; + + return inst_ok; +} + +/* Request an instrument calibration. */ +inst_code ex1_calibrate( +inst *pp, +inst_cal_type *calt, /* Calibration type to do/remaining */ +inst_cal_cond *calc, /* Current condition/desired condition */ +char id[CALIDLEN] /* Condition identifier (ie. white reference ID) */ +) { + ex1 *p = (ex1 *)pp; + inst_code ev; + inst_cal_type needed, available; + + if (!p->gotcoms) + return inst_no_coms; + if (!p->inited) + return inst_no_init; + + id[0] = '\000'; + + if ((ev = ex1_get_n_a_cals((inst *)p, &needed, &available)) != inst_ok) + return ev; + + /* Translate inst_calt_all/needed into something specific */ + if (*calt == inst_calt_all + || *calt == inst_calt_needed + || *calt == inst_calt_available) { + if (*calt == inst_calt_all) + *calt = (needed & inst_calt_n_dfrble_mask) | inst_calt_ap_flag; + else if (*calt == inst_calt_needed) + *calt = needed & inst_calt_n_dfrble_mask; + else if (*calt == inst_calt_available) + *calt = available & inst_calt_n_dfrble_mask; + + a1logd(p->log,4,"ex1_calibrate: doing calt 0x%x\n",calt); + + if ((*calt & inst_calt_n_dfrble_mask) == 0) /* Nothing todo */ + return inst_ok; + } + + /* See if it's a calibration we understand */ + if (*calt & ~available & inst_calt_all_mask) { + return inst_unsupported; + } + + if ((*calt & inst_calt_ref_freq) && p->refrmode != 0) { + inst_code ev = inst_ok; + + + if (*calc != inst_calc_emis_80pc) { + *calc = inst_calc_emis_80pc; + return inst_cal_setup; + } + + /* Do refresh display rate calibration */ + if ((ev = ex1_measure_set_refresh(p)) != inst_ok) + return ev; + + *calt &= ~inst_calt_ref_freq; + } + return inst_ok; +} + +/* Return the last calibrated refresh rate in Hz. Returns: */ +static inst_code ex1_get_refr_rate(inst *pp, +double *ref_rate +) { + ex1 *p = (ex1 *)pp; + if (p->refrvalid) { + *ref_rate = p->refrate; + return inst_ok; + } else if (p->rrset) { + *ref_rate = 0.0; + return inst_misread; + } + return inst_needs_cal; +} + +/* Set the calibrated refresh rate in Hz. */ +/* Set refresh rate to 0.0 to mark it as invalid */ +/* Rates outside the range 5.0 to 150.0 Hz will return an error */ +static inst_code ex1_set_refr_rate(inst *pp, +double ref_rate +) { + ex1 *p = (ex1 *)pp; + inst_code rv; + + a1logd(p->log,5,"ex1_set_refr_rate %f Hz\n",ref_rate); + + if (ref_rate != 0.0 && (ref_rate < 5.0 || ref_rate > 150.0)) + return inst_bad_parameter; + + p->refrate = ref_rate; + if (ref_rate == 0.0) + p->refrvalid = 0; + else { + p->refperiod = 1.0/ref_rate; + p->refrvalid = 1; + } + p->rrset = 1; + + /* Set the instrument to given refresh rate */ + amutex_lock(p->lock); + if ((rv = ex1_imp_set_refresh(p)) != inst_ok) { + amutex_unlock(p->lock); + return rv; + } + amutex_unlock(p->lock); + + return inst_ok; +} + + +/* Error codes interpretation */ +static char * +ex1_interp_error(inst *pp, int ec) { +// ex1 *p = (ex1 *)pp; + ec &= inst_imask; + switch (ec) { + case EX1_INTERNAL_ERROR: + return "Internal software error"; + case EX1_TIMEOUT: + return "Communications timeout"; + case EX1_COMS_FAIL: + return "Communications failure"; + case EX1_UNKNOWN_MODEL: + return "Not a JETI ex1"; + case EX1_DATA_PARSE_ERROR: + return "Data from ex1 didn't parse as expected"; + + + case EX1_OK: + return "No device error"; + + case EX1_NOT_IMP: + return "Not implemented"; + + default: + return "Unknown error code"; + } +} + + +/* Convert a machine specific error code into an abstract dtp code */ +static inst_code +ex1_interp_code(inst *pp, int ec) { + + ec &= inst_imask; + switch (ec) { + + case EX1_OK: + return inst_ok; + +// return inst_internal_error | ec; + +// return inst_coms_fail | ec; + +// return inst_unknown_model | ec; + +// return inst_protocol_error | ec; + +// return inst_wrong_config | ec; + +// return inst_bad_parameter | ec; + +// return inst_misread | ec; + +// return inst_hardware_fail | ec; + + case EX1_NOT_IMP: + return inst_unsupported | ec; + } + return inst_other_error | ec; +} + +/* Destroy ourselves */ +static void +ex1_del(inst *pp) { + if (pp != NULL) { + ex1 *p = (ex1 *)pp; + if (p->icom != NULL) + p->icom->del(p->icom); + amutex_del(p->lock); + free(p); + } +} + +/* Return the instrument mode capabilities */ +static void ex1_capabilities(inst *pp, +inst_mode *pcap1, +inst2_capability *pcap2, +inst3_capability *pcap3) { + ex1 *p = (ex1 *)pp; + inst_mode cap1 = 0; + inst2_capability cap2 = 0; + + cap1 |= inst_mode_emis_tele +// | inst_mode_ambient // ?? is it + | inst_mode_colorimeter + | inst_mode_spectral + | inst_mode_emis_refresh_ovd + | inst_mode_emis_norefresh_ovd + ; + + /* can inst2_has_sensmode, but not report it asynchronously */ + cap2 |= inst2_prog_trig + | inst2_user_trig + | inst2_disptype + | inst2_has_target /* Has a laser target */ + ; + +// ~~~~9999 + if (p->model != 1201) { + cap2 |= inst2_emis_refr_meas; + cap2 |= inst2_set_refresh_rate; + cap2 |= inst2_get_refresh_rate; + } + + if (pcap1 != NULL) + *pcap1 = cap1; + if (pcap2 != NULL) + *pcap2 = cap2; + if (pcap3 != NULL) + *pcap3 = inst3_none; +} + +/* Return current or given configuration available measurement modes. */ +/* NOTE that conf_ix values shoudn't be changed, as it is used as a persistent key */ +static inst_code ex1_meas_config( +inst *pp, +inst_mode *mmodes, +inst_cal_cond *cconds, +int *conf_ix +) { + ex1 *p = (ex1 *)pp; + inst_code ev; + inst_mode mval; + int pos; + + if (mmodes != NULL) + *mmodes = inst_mode_none; + if (cconds != NULL) + *cconds = inst_calc_unknown; + + if (conf_ix == NULL + || *conf_ix < 0 + || *conf_ix > 1) { + /* Return current configuration measrement modes */ + amutex_lock(p->lock); + if ((ev = ex1_get_diffpos(p, &pos, 0)) != inst_ok) { + amutex_unlock(p->lock); + return ev; + } + amutex_unlock(p->lock); + } else { + /* Return given configuration measurement modes */ + pos = *conf_ix; + } + + if (pos == 1) { + mval = inst_mode_emis_ambient; + } else if (pos == 0) { + mval |= inst_mode_emis_tele; + } + + /* Add the extra dependent and independent modes */ + mval |= inst_mode_emis_refresh_ovd + | inst_mode_emis_norefresh_ovd + | inst_mode_colorimeter + | inst_mode_spectral; + + if (mmodes != NULL) + *mmodes = mval; + + /* Return configuration index returned */ + if (conf_ix != NULL) + *conf_ix = pos; + + return inst_ok; +} + +/* Check device measurement mode */ +static inst_code ex1_check_mode(inst *pp, inst_mode m) { + inst_mode cap; + + if (!pp->gotcoms) + return inst_no_coms; + if (!pp->inited) + return inst_no_init; + + pp->capabilities(pp, &cap, NULL, NULL); + + /* Simple test */ + if (m & ~cap) + return inst_unsupported; + + /* Only tele emission mode supported */ + if (!IMODETST(m, inst_mode_emis_tele) + && !IMODETST(m, inst_mode_emis_ambient)) { + return inst_unsupported; + } + + return inst_ok; +} + +/* Set device measurement mode */ +static inst_code ex1_set_mode(inst *pp, inst_mode m) { + ex1 *p = (ex1 *)pp; + int refrmode; + inst_code ev; + + if ((ev = ex1_check_mode(pp, m)) != inst_ok) + return ev; + + p->mode = m; + + + if (p->model != 1201) { /* Can't set refresh mode on 1201 */ + + /* Effective refresh mode may change */ + refrmode = p->refrmode; + if ( IMODETST(p->mode, inst_mode_emis_norefresh_ovd)) { /* Must test this first! */ + refrmode = 0; + } else if (IMODETST(p->mode, inst_mode_emis_refresh_ovd)) { + refrmode = 1; + } + + if (p->refrmode != refrmode) { + p->rrset = 0; /* This is a hint we may have swapped displays */ + p->refrvalid = 0; + } + p->refrmode = refrmode; + } + + return inst_ok; +} + +static inst_disptypesel ex1_disptypesel[3] = { + { + inst_dtflags_default, + 1, + "nl", + "Non-Refresh display", + 0, + disptech_lcd, + 0 + }, + { + inst_dtflags_none, /* flags */ + 2, /* cbid */ + "rc", /* sel */ + "Refresh display", /* desc */ + 1, /* refr */ + disptech_crt, /* disptype */ + 1 /* ix */ + }, + { + inst_dtflags_end, + 0, + "", + "", + 0, + disptech_none, + 0 + } +}; + +/* Get mode and option details */ +static inst_code ex1_get_disptypesel( +inst *pp, +int *pnsels, /* Return number of display types */ +inst_disptypesel **psels, /* Return the array of display types */ +int allconfig, /* nz to return list for all configs, not just current. */ +int recreate /* nz to re-check for new ccmx & ccss files */ +) { + ex1 *p = (ex1 *)pp; + inst_code rv = inst_ok; + + if ((!allconfig && (p->mode & inst_mode_ambient)) /* If set to Ambient */ + || p->model == 1201) { /* Or 1201, return empty list */ + + if (pnsels != NULL) + *pnsels = 0; + + if (psels != NULL) + *psels = NULL; + + return inst_ok; + } + + + if (pnsels != NULL) + *pnsels = 2; + + if (psels != NULL) + *psels = ex1_disptypesel; + + return inst_ok; +} + +/* Given a display type entry, setup for that type */ +static inst_code set_disp_type(ex1 *p, inst_disptypesel *dentry) { + inst_code rv; + int refrmode; + + refrmode = dentry->refr; + + a1logd(p->log,5,"ex1 set_disp_type refmode %d\n",refrmode); + + if ( IMODETST(p->mode, inst_mode_emis_norefresh_ovd)) { /* Must test this first! */ + refrmode = 0; + } else if (IMODETST(p->mode, inst_mode_emis_refresh_ovd)) { + refrmode = 1; + } + + if (p->refrmode != refrmode) + p->rrset = 0; /* This is a hint we may have swapped displays */ + p->refrmode = refrmode; + + amutex_lock(p->lock); + if ((rv = ex1_imp_set_refresh(p)) != inst_ok) { + amutex_unlock(p->lock); + return rv; + } + amutex_unlock(p->lock); + + return inst_ok; +} + +/* Set the display type - refresh or not */ +static inst_code ex1_set_disptype(inst *pp, int ix) { + ex1 *p = (ex1 *)pp; + inst_code ev; + inst_disptypesel *dentry; + + if (!p->gotcoms) + return inst_no_coms; + if (!p->inited) + return inst_no_init; + + if (p->model == 1201) /* No display type to select on 1201 */ + return inst_unsupported; + + if (ix < 0 || ix >= 2) + return inst_unsupported; + + a1logd(p->log,5,"ex1 ex1_set_disptype ix %d\n",ix); + dentry = &ex1_disptypesel[ix]; + + if ((ev = set_disp_type(p, dentry)) != inst_ok) { + return ev; + } + + return inst_ok; +} + +/* + * set or reset an optional mode + * + * Some options talk to the instrument, and these will + * error if it hasn't been initialised. + */ +static inst_code +ex1_get_set_opt(inst *pp, inst_opt_type m, ...) +{ + ex1 *p = (ex1 *)pp; + char buf[MAX_MES_SIZE]; + inst_code ev = inst_ok; + + a1logd(p->log, 5, "ex1_get_set_opt: opt type 0x%x\n",m); + + /* Record the trigger mode */ + if (m == inst_opt_trig_prog + || m == inst_opt_trig_user) { + p->trig = m; + return inst_ok; + } + + if (!p->gotcoms) + return inst_no_coms; + if (!p->inited) + return inst_no_init; + + return inst_unsupported; +} + +/* Constructor */ +extern ex1 *new_ex1(icoms *icom, instType itype) { + ex1 *p; + if ((p = (ex1 *)calloc(sizeof(ex1),1)) == NULL) { + a1loge(icom->log, 1, "new_ex1: malloc failed!\n"); + return NULL; + } + + p->log = new_a1log_d(icom->log); + + p->init_coms = ex1_init_coms; + p->init_inst = ex1_init_inst; + p->capabilities = ex1_capabilities; + p->meas_config = ex1_meas_config; + p->check_mode = ex1_check_mode; + p->set_mode = ex1_set_mode; + p->get_disptypesel = ex1_get_disptypesel; + p->set_disptype = ex1_set_disptype; + p->get_set_opt = ex1_get_set_opt; + p->read_sample = ex1_read_sample; + p->read_refrate = ex1_read_refrate; + p->get_n_a_cals = ex1_get_n_a_cals; + p->calibrate = ex1_calibrate; + p->get_refr_rate = ex1_get_refr_rate; + p->set_refr_rate = ex1_set_refr_rate; + p->interp_error = ex1_interp_error; + p->del = ex1_del; + + p->icom = icom; + p->itype = icom->itype; + + amutex_init(p->lock); + + return p; +} + diff --git a/spectro/ex1.h b/spectro/ex1.h new file mode 100644 index 0000000..456ab75 --- /dev/null +++ b/spectro/ex1.h @@ -0,0 +1,88 @@ +#ifndef EX1_H + +/* + * Argyll Color Correction System + * + * Image Engineering EX1 + * + * Author: Graeme W. Gill + * Date: 4/4/2015 + * + * Copyright 2001 - 2015, Graeme W. Gill + * All rights reserved. + * + * This material is licenced under the GNU GENERAL PUBLIC LICENSE Version 2 or later :- + * see the License2.txt file for licencing details. + * + * Based on spebos.h + */ + +/* + If you make use of the instrument driver code here, please note + that it is the author(s) of the code who take responsibility + for its operation. Any problems or queries regarding driving + instruments with the Argyll drivers, should be directed to + the Argyll's author(s), and not to any other party. + + If there is some instrument feature or function that you + would like supported here, it is recommended that you + contact Argyll's author(s) first, rather than attempt to + modify the software yourself, if you don't have firm knowledge + of the instrument communicate protocols. There is a chance + that an instrument could be damaged by an incautious command + sequence, and the instrument companies generally cannot and + will not support developers that they have not qualified + and agreed to support. + */ + +#include "inst.h" + +/* Fake Error codes */ +#define EX1_INTERNAL_ERROR 0xff01 /* Internal software error */ +#define EX1_TIMEOUT 0xff02 /* Communication timeout */ +#define EX1_COMS_FAIL 0xff03 /* Communication failure */ +#define EX1_UNKNOWN_MODEL 0xff04 /* Not a JETI ex1 */ +#define EX1_DATA_PARSE_ERROR 0xff05 /* Read data parsing error */ + + +/* Real instrument error code */ +#define EX1_OK 0 +#define EX1_NOT_IMP 1 + +/* Internal software errors */ +#define EX1_INT_THREADFAILED 1000 + +/* EX1 communication object */ +struct _ex1 { + INST_OBJ_BASE + + amutex lock; /* Command lock (not necessary) */ + + int model; /* ex1 model number */ + + inst_mode mode; /* Currently instrument mode */ + + int refrmode; /* nz if in refresh display mode */ + /* (1201 has a refresh mode ?? but can't measure frequency) */ + int rrset; /* Flag, nz if the refresh rate has been determined */ + double refperiod; /* if > 0.0 in refmode, target int time quantization */ + double refrate; /* Measured refresh rate in Hz */ + int refrvalid; /* nz if refrate is valid */ + + inst_opt_type trig; /* Reading trigger mode */ + + double measto; /* Expected measurement timeout value */ + int nbands; /* Number of spectral bands */ + double wl_short; + double wl_long; + + /* Other state */ + + }; typedef struct _ex1 ex1; + +/* Constructor */ +extern ex1 *new_ex1(icoms *icom, instType itype); + + +#define EX1_H +#endif /* EX1_H */ diff --git a/spectro/fakeread.c b/spectro/fakeread.c index ce06e93..892f548 100644 --- a/spectro/fakeread.c +++ b/spectro/fakeread.c @@ -19,7 +19,10 @@ ie. Add cgats i/o to cctiff Add other processing steps such as TV, BT.1886, random to cctiff. - Do we need to deterct & mark display values normalized to Y = 100 ?? + If a display profile has the icSigLuminanceTag, the value + should be used to set the .ti3 LUMINANCE_XYZ_CDM2 value, + and set NORMALIZED_TO_Y_100 to YES. + */ @@ -36,7 +39,9 @@ #include "numlib.h" #include "cgats.h" #include "xicc.h" +#include "bt1886.h" #include "icc.h" +#include "ui.h" void usage(char *diag, ...) { fprintf(stderr,"Fake test chart reader - lookup values in ICC/MPP profile, Version %s\n", @@ -63,16 +68,17 @@ void usage(char *diag, ...) { fprintf(stderr," C Rec2020 Constant Luminance YCbCr UHD (16-235,240)/255 \"TV\" levels\n"); fprintf(stderr," -p separation.%s Use device link separation profile on input\n",ICC_FILE_EXT_ND); fprintf(stderr," -E flag Video decode separation device output. See -e above\n"); + fprintf(stderr," -Z nbits Quantize test values to fit in nbits\n"); fprintf(stderr," -k file.cal Apply calibration (include in .ti3 output)\n"); fprintf(stderr," -i file.cal Include calibration in .ti3 output, but don't apply it\n"); fprintf(stderr," -K file.cal Apply inverse calibration\n"); fprintf(stderr," -r level Add average random deviation of %% to device values (after sep. & cal.)\n"); fprintf(stderr," -0 pow Apply power to device chanel 0-9\n"); - fprintf(stderr," -b output.%s Apply BT.1886-like mapping with effective gamma 2.2\n",ICC_FILE_EXT_ND); - fprintf(stderr," -b g.g:output.%s Apply BT.1886-like mapping with effective gamma g.g\n",ICC_FILE_EXT_ND); - fprintf(stderr," -B output.%s Apply BT.1886 mapping with technical gamma 2.4\n",ICC_FILE_EXT_ND); - fprintf(stderr," -B g.g:output.%s Apply BT.1886 mapping with technical gamma g.g\n",ICC_FILE_EXT_ND); + fprintf(stderr," -B display.%s Use BT.1886 source EOTF with technical gamma 2.4\n",ICC_FILE_EXT_ND); + fprintf(stderr," -b g.g:display.%s Use BT.1886-like source EOTF with effective gamma g.g\n",ICC_FILE_EXT_ND); + fprintf(stderr," -b p.p:g.g:display.%s Use effective gamma g.g source EOTF with p.p prop. output black point offset\n",ICC_FILE_EXT_ND); + fprintf(stderr," -g g.g:display.%s Use effective gamma g.g source EOTF with all output black point offset\n",ICC_FILE_EXT_ND); fprintf(stderr," -I intent r = relative colorimetric, a = absolute (default)\n"); fprintf(stderr," -A L,a,b Scale black point to target Lab value\n"); fprintf(stderr," -l Output Lab rather than XYZ\n"); @@ -80,6 +86,7 @@ void usage(char *diag, ...) { fprintf(stderr," -R level Add average random deviation of %% to output PCS values\n"); fprintf(stderr," -u Make random deviations have uniform distributions rather than normal\n"); fprintf(stderr," -S seed Set random seed\n"); + fprintf(stderr," -U Reverse convert PCS to device, output_r.ti3\n"); fprintf(stderr," profile.[%s|mpp|ti3] ICC, MPP profile or TI3 to use\n",ICC_FILE_EXT_ND); fprintf(stderr," outfile Base name for input[ti1]/output[ti3] file\n"); exit(1); @@ -90,12 +97,15 @@ int main(int argc, char *argv[]) int j; int fa, nfa, mfa; /* current argument we're looking at */ int verb = 0; /* Verbose flag */ + int revlookup = 0; /* Do PCS to device space conversion */ int dosep = 0; /* Use separation before profile */ int bt1886 = 0; /* 1 to apply BT.1886 black point & effective gamma to input */ /* 2 to apply BT.1886 black point & technical gamma to input */ + double outoprop = 0.0; /* Proportion of black output offset, 0.0 .. 1.0. 0.0 == BT.1886 */ double egamma = 2.2; /* effective BT.1886 style gamma to ain for */ double tgamma = 2.4; /* technical BT.1886 style gamma to ain for */ bt1886_info bt; /* BT.1886 adjustment info */ + int islab = 0; /* Input has Lab rather than XYZ */ int dolab = 0; /* Output Lab rather than XYZ */ int gfudge = 0; /* Do grey fudge, 1 = W->RGB, 2 = K->xxxK */ double chpow[10] = { 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0 }; @@ -109,8 +119,8 @@ int main(int argc, char *argv[]) static char calname[MAXNAMEL+1] = { 0 }; /* device calibration */ static char profname[MAXNAMEL+1] = { 0 }; /* ICC or MPP Profile name */ static char inname[MAXNAMEL+1] = { 0 }; /* Input cgats file base name */ - static char outname[MAXNAMEL+1] = { 0 }; /* Output cgats file base name */ - static char oprofname[MAXNAMEL+1] = { 0 }; /* BT.1886 output profile name */ + static char outname[MAXNAMEL+3] = { 0 }; /* Output cgats file base name */ + static char odispname[MAXNAMEL+1] = { 0 }; /* BT.1886 display profile name */ cgats *icg; /* input cgats structure */ cgats *ocg; /* output cgats structure */ int nmask = 0; /* Test chart device colorant mask */ @@ -119,11 +129,12 @@ int main(int argc, char *argv[]) int si; /* Sample id index */ int ti; /* Temp index */ int fi; /* Colorspace index */ - int inti3 = 0; /* Input is a renamed .ti3 file rather than .ti1 */ + int inti3 = 0; /* Input is a .ti3 format rather than .ti1 */ /* TV encode/decode of separation/calibration device link */ int in_tvenc = 0; /* 1 to use RGB Video Level encoding, 2 = Rec601, etc. */ int out_tvenc = 0; /* 1 to use RGB Video Level encoding, 2 = Rec601, etc. */ + int qbits = 0; /* Quantization bits, 0 = not set */ /* ICC separation/calibration device link profile */ icmFile *sep_fp = NULL; /* Color profile file */ @@ -154,12 +165,12 @@ int main(int argc, char *argv[]) double spec_wl_long; /* Last reading wavelength in nm (longest) */ /* TI3 based fake read */ - cgats *ti3 = NULL; /* input cgats structure */ - int ti3_npat = 0; /* Number of patches in reference file */ + cgats *ti3 = NULL; /* input cgats structure */ + int ti3_npat = 0; /* Number of patches in reference file */ int ti3_chix[ICX_MXINKS]; /* Device chanel indexes */ - int ti3_pcsix[3]; /* Device chanel indexes */ + int ti3_pcsix[3]; /* PCS chanel indexes */ int ti3_spi[XSPECT_MAX_BANDS]; /* CGATS indexes for each wavelength */ - int ti3_isLab = 0; /* Flag indicating PCS for TI3 file */ + int ti3_isLab = 0; /* Flag indicating PCS for TI3 file */ int rv = 0; int inn, outn; /* Number of channels for conversion input, output */ @@ -245,9 +256,21 @@ int main(int argc, char *argv[]) } if (argv[fa][1] == 'e') in_tvenc = enc; - else + else { out_tvenc = enc; + if (qbits == 0) + qbits = 8; + } + fa = nfa; + } + + /* Specify quantization bits */ + else if (argv[fa][1] == 'Z') { fa = nfa; + if (na == NULL) usage("Expected argument to -Z"); + qbits = atoi(na); + if (qbits < 1 || qbits > 32) + usage("Argument to -Q must be between 1 and 32"); } /* Separation */ @@ -259,40 +282,57 @@ int main(int argc, char *argv[]) strncpy(sepname,na,MAXNAMEL); sepname[MAXNAMEL] = '\000'; } - /* BT.1886 modifier */ + /* Gamma curve modifier */ else if (argv[fa][1] == 'b' - || argv[fa][1] == 'B') { + || argv[fa][1] == 'B' + || argv[fa][1] == 'g' + || argv[fa][1] == 'G') { char *cp; - bt1886 = 1; - if (argv[fa][1] == 'B') - bt1886 = 2; - - if (na == NULL) usage("BT.1886 flag (-%c) needs an argument",argv[fa][1]); - fa = nfa; + if (na == NULL) usage("Gamma curve flag (-%c) needs an argument",argv[fa][1]); - if ((cp = strchr(na, ':')) != NULL) { - double gamma = 0.0; + bt1886 = 1; /* Effective */ + if (argv[fa][1] == 'B' || argv[fa][1] == 'G') + bt1886 = 2; /* Technical */ + + if (argv[fa][1] == 'g' || argv[fa][1] == 'G') + outoprop = 1.0; + + /* Grab the filename */ + if ((cp = strrchr(na, ':')) != NULL) { + double gamma, opr; + + strncpy(odispname,cp+1,MAXNAMEL); odispname[MAXNAMEL] = '\000'; *cp = '\000'; - cp++; - gamma = atof(na); - if (gamma < 0.01 || gamma > 10.0) usage("BT.1886 gamma is out of range"); - if (bt1886 == 1) - egamma = gamma; - else - tgamma = gamma; - } else { - cp = na; + + if (sscanf(na,"%lf:%lf",&opr, &gamma) == 2) { + outoprop = opr; + if (bt1886 == 1) + egamma = gamma; + else + tgamma = gamma; + + } else if (sscanf(na,"%lf",&gamma) == 1) { + if (bt1886 == 1) + egamma = gamma; + else + tgamma = gamma; + } else { + usage("Gamma curve (-%c) arguments not recognised",argv[fa][1]); + } + + } else { /* No outoprop or gamma, just filanem */ + strncpy(odispname,na,MAXNAMEL); odispname[MAXNAMEL] = '\000'; } - strncpy(oprofname,cp,MAXNAMEL); oprofname[MAXNAMEL] = '\000'; + fa = nfa; /* Used argument */ } /* Lab */ - else if (argv[fa][1] == 'l' || argv[fa][1] == 'L') + else if (argv[fa][1] == 'l') dolab = 1; /* Uniform distrivuted errors */ - else if (argv[fa][1] == 'u' || argv[fa][1] == 'U') + else if (argv[fa][1] == 'u') unidist = 1; /* Random seed value */ @@ -370,6 +410,11 @@ int main(int argc, char *argv[]) } } + /* Reverse lookup */ + else if (argv[fa][1] == 'U') { + revlookup = 1; + } + else usage("Unrecognised flag"); } @@ -382,11 +427,80 @@ int main(int argc, char *argv[]) if (fa >= argc || argv[fa][0] == '-') usage("Missing basename argument"); strncpy(inname,argv[fa],MAXNAMEL-4); inname[MAXNAMEL-4] = '\000'; - strcat(inname,".ti1"); + if (revlookup) + strcat(inname,".ti3"); + else + strcat(inname,".ti1"); strncpy(outname,argv[fa],MAXNAMEL-4); outname[MAXNAMEL-4] = '\000'; + if (revlookup) + strcat(outname,"_r"); strcat(outname,".ti3"); rand32(seed); /* Init seed */ + + if (revlookup && ( + dosep + || calname[0] != '\000' + || dospec + || tbp[0] >= 0.0 + || bt1886)) + error("Can't do separation, apply calibration, do spectral, black point scale, bt.1886, with reverse lookup"); + + /* Deal with input CGATS files */ + icg = new_cgats(); /* Create a CGATS structure */ + icg->add_other(icg, "CTI1"); /* our special input type is Calibration Target Information 1 */ + icg->add_other(icg, "CTI3"); /* also accept renamed .ti3 file */ + + if (icg->read_name(icg, inname)) + error("CGATS file read error : %s",icg->err); + + if (icg->ntables == 0 || icg->t[0].tt != tt_other || (icg->t[0].oi != 0 && icg->t[0].oi != 1)) + error ("Input file isn't a CTI1 format file"); + if (icg->t[0].oi == 1) + inti3 = 1; /* It's a renamed .ti3 file */ + if (icg->ntables != 1 && icg->ntables != 2 && icg->ntables != 3) + error ("Input file doesn't contain one, two or three tables"); + + if ((npat = icg->t[0].nsets) <= 0) + error ("No sets of data"); + + /* Figure out the color space of the .ti1 */ + if ((fi = icg->find_kword(icg, 0, "COLOR_REP")) < 0) + error ("Input file doesn't contain keyword COLOR_REP"); + + if (inti3) { + char *rbuf, *outc; + + if ((rbuf = strdup(icg->t[0].kdata[fi])) == NULL) + error("Malloc failed"); + + /* Split COLOR_REP into device and PCS space */ + if ((outc = strchr(rbuf, '_')) == NULL) + error("Input file '%s' COLOR_REP '%s' invalid", inname, icg->t[0].kdata[fi]); + *outc++ = '\000'; + + if ((nmask = icx_char2inkmask(rbuf)) == 0) { + error ("Input file '%s' keyword COLOR_REP has unknown device value '%s'",inname,rbuf); + } + + if (strcmp(outc,"LAB") == 0) + islab = 1; + else if (strcmp(outc,"XYZ") == 0) + islab = 0; + else + error("Input .ti3 file PCS is neither LAB nor XYZ"); + dolab = islab; + + free(rbuf); + } else { + if ((nmask = icx_char2inkmask(icg->t[0].kdata[fi])) == 0) + error ("Input file '%s' keyword COLOR_REP has unknown value '%s'",inname, icg->t[0].kdata[fi]); + } + + if (revlookup && !inti3) { + error("reverse lookup expects .ti3 file as input"); + } + /* Deal with separation */ if (dosep) { if ((sep_fp = new_icmFileStd_name(sepname,"r")) == NULL) @@ -439,7 +553,7 @@ int main(int argc, char *argv[]) if ((icc_icco = new_icc()) == NULL) error ("Creation of ICC object failed"); - /* Deal with ICC profile */ + /* Read ICC profile */ if ((rv = icc_icco->read(icc_icco,icc_fp,0)) == 0) { /* Embed any calibration in the output if it's present */ @@ -451,12 +565,22 @@ int main(int argc, char *argv[]) printf("Embedding calibration curves from ICC profile in output\n"); } - /* Get a Device to PCS conversion object */ - if ((icc_luo = icc_icco->get_luobj(icc_icco, icmFwd, intent, - dolab ? icSigLabData : icSigXYZData, icmLuOrdNorm)) == NULL) { - if ((icc_luo = icc_icco->get_luobj(icc_icco, icmFwd, icmDefaultIntent, - dolab ? icSigLabData : icSigXYZData, icmLuOrdNorm)) == NULL) - error ("%d, %s",icc_icco->errc, icc_icco->err); + if (revlookup) { + /* Get a PCS to Device conversion object */ + if ((icc_luo = icc_icco->get_luobj(icc_icco, icmBwd, intent, + islab ? icSigLabData : icSigXYZData, icmLuOrdNorm)) == NULL) { + if ((icc_luo = icc_icco->get_luobj(icc_icco, icmBwd, icmDefaultIntent, + islab ? icSigLabData : icSigXYZData, icmLuOrdNorm)) == NULL) + error ("%d, %s",icc_icco->errc, icc_icco->err); + } + } else { + /* Get a Device to PCS conversion object */ + if ((icc_luo = icc_icco->get_luobj(icc_icco, icmFwd, intent, + dolab ? icSigLabData : icSigXYZData, icmLuOrdNorm)) == NULL) { + if ((icc_luo = icc_icco->get_luobj(icc_icco, icmFwd, icmDefaultIntent, + dolab ? icSigLabData : icSigXYZData, icmLuOrdNorm)) == NULL) + error ("%d, %s",icc_icco->errc, icc_icco->err); + } } /* Get details of conversion */ @@ -504,6 +628,9 @@ int main(int argc, char *argv[]) /* If we don't have an ICC lookup object, look for an MPP */ if (icc_luo == NULL) { + if (revlookup) + error("Reverse lookup using MPP not supported"); + if ((mlu = new_mpp()) == NULL) error ("Creation of MPP object failed"); @@ -537,6 +664,9 @@ int main(int argc, char *argv[]) char *ti3_bident; int ti3_nchan; + if (revlookup) + error("Reverse lookup using TI3 as conversion not supported"); + ti3 = new_cgats(); /* Create a CGATS structure */ ti3->add_other(ti3, "CTI3");/* our special input type is Calibration Target Information 3 */ @@ -666,14 +796,14 @@ int main(int argc, char *argv[]) lu = (icmLuMatrix *)icc_luo; /* Safe to coerce - we have checked it's matrix. */ /* Open up output profile used for BT.1886 black point */ - if ((ofp = new_icmFileStd_name(oprofname,"r")) == NULL) - error ("Can't open file '%s'",oprofname); + if ((ofp = new_icmFileStd_name(odispname,"r")) == NULL) + error ("Can't open file '%s'",odispname); if ((oicco = new_icc()) == NULL) error ("Creation of ICC object failed"); if (oicco->read(oicco,ofp,0)) - error ("Unable to read '%s'",oprofname); + error ("Unable to read '%s'",odispname); if ((oluo = oicco->get_luobj(oicco, icmFwd, icRelativeColorimetric, icSigXYZData, icmLuOrdNorm)) == NULL) @@ -690,30 +820,35 @@ int main(int argc, char *argv[]) oicco->del(oicco); ofp->del(ofp); + bt1886_setup(&bt, &lu->pcswht, bp, outoprop, + bt1886 == 1 ? egamma : tgamma, bt1886 == 1 ? 1 : 0); + + if (verb) + printf("Gamma Curve: Using ouput black offset proportion %f\n",outoprop); + if (bt1886 == 1) { /* Using effective gamma */ - tgamma = xicc_tech_gamma(egamma, bp[1]); if (verb) - printf("BT.1886: Technical gamma %f used to achieve effective gamma %f\n", - tgamma, egamma); + printf("Gamma Curve: Technical gamma %f used to achieve effective gamma %f\n", + bt.gamma, egamma); } else { if (verb) - printf("BT.1886: Using technical gamma %f\n",tgamma); + printf("Gamma Curve: Using technical gamma %f\n",bt.gamma); } - bt1886_setup(&bt, bp, tgamma); if (verb) { - printf("BT.1886: target out black rel XYZ = %f %f %f, Lab %f %f %f\n", + printf("Gamma Curve: target out black rel XYZ = %f %f %f, Lab %f %f %f\n", bp[0],bp[1],bp[2], bt.outL, bt.tab[0], bt.tab[1]); - printf("BT.1886: Y input offset = %f\n", bt.ingo); - printf("BT.1886: Y output scale = %f\n", bt.outsc); + printf("Gamma Curve: Y input offset = %f\n", bt.ingo); + printf("Gamma Curve: Y output scale = %f\n", bt.outsc); + printf("Gamma Curve: Y output offset = %f\n", bt.outo); } /* Check black point now produced by input profile with bt.1886 adjustment */ rgb[0] = rgb[1] = rgb[2] = 0.0; - lu->fwd_curve(lu, rgb, rgb); + bt1886_fwd_curve(&bt, rgb, rgb); lu->fwd_matrix(lu, rgb, rgb); - bt1886_apply(&bt, lu, rgb, rgb); + bt1886_wp_adjust(&bt, rgb, rgb); if (verb) printf("BT.1886: check input black point rel. XYZ %f %f %f\n", rgb[0],rgb[1],rgb[2]); if (verb > 1) { int i, no = 21; @@ -725,18 +860,12 @@ int main(int argc, char *argv[]) double vi[3], vo[3], Lab[3]; double loglog = 0.0; - if (v <= 0.081) - vv = v/4.5; - else - vv = pow((0.099 + v)/1.099, 1.0/0.45); - - vi[0] = vv * 0.9642; /* To D50 XYZ */ - vi[1] = vv * 1.0000; - vi[2] = vv * 0.8249; - - bt1886_apply(&bt, lu, vo, vi); /* BT.1886 mapping */ + vi[0] = vi[1] = vi[2] = v; + bt1886_fwd_curve(&bt, vo, vi); + lu->fwd_matrix(lu, vo, vo); + bt1886_wp_adjust(&bt, vo, vo); - icmXYZ2Lab(&icmD50, Lab, vo); + icmXYZ2Lab(&lu->pcswht, Lab, vo); if (v > 1e-9 && vo[1] > 1e-9 && fabs(v - 1.0) > 1e-9) loglog = log(vo[1])/log(v); @@ -764,49 +893,6 @@ int main(int argc, char *argv[]) fflush(stdout); } - /* Deal with input CGATS files */ - icg = new_cgats(); /* Create a CGATS structure */ - icg->add_other(icg, "CTI1"); /* our special input type is Calibration Target Information 1 */ - icg->add_other(icg, "CTI3"); /* also accept renamed .ti3 file */ - - if (icg->read_name(icg, inname)) - error("CGATS file read error : %s",icg->err); - - if (icg->ntables == 0 || icg->t[0].tt != tt_other || (icg->t[0].oi != 0 && icg->t[0].oi != 1)) - error ("Input file isn't a CTI1 format file"); - if (icg->t[0].oi == 1) - inti3 = 1; /* It's a renamed .ti3 file */ - if (icg->ntables != 1 && icg->ntables != 2 && icg->ntables != 3) - error ("Input file doesn't contain one, two or three tables"); - - if ((npat = icg->t[0].nsets) <= 0) - error ("No sets of data"); - - /* Figure out the color space of the .ti1 */ - if ((fi = icg->find_kword(icg, 0, "COLOR_REP")) < 0) - error ("Input file doesn't contain keyword COLOR_REP"); - - if (inti3) { - char *rbuf, *outc; - - if ((rbuf = strdup(icg->t[0].kdata[fi])) == NULL) - error("Malloc failed"); - - /* Split COLOR_REP into device and PCS space */ - if ((outc = strchr(rbuf, '_')) == NULL) - error("Input file '%s' COLOR_REP '%s' invalid", inname, icg->t[0].kdata[fi]); - *outc++ = '\000'; - - if ((nmask = icx_char2inkmask(rbuf)) == 0) { - error ("Input file '%s' keyword COLOR_REP has unknown device value '%s'",inname,rbuf); - } - - free(rbuf); - } else { - if ((nmask = icx_char2inkmask(icg->t[0].kdata[fi])) == 0) - error ("Input file '%s' keyword COLOR_REP has unknown value '%s'",inname, icg->t[0].kdata[fi]); - } - /* Setup output cgats file */ ocg = new_cgats(); /* Create a CGATS structure */ ocg->add_other(ocg, "CTI3"); /* our special type is Calibration Target Information 3 */ @@ -873,11 +959,12 @@ int main(int argc, char *argv[]) { int i, j, ii; int chix[ICX_MXINKS]; /* Device chanel indexes */ + int pcsix[3]; /* PCS chanel indexes (for revlookup) */ char *ident, *bident; int nsetel = 0; cgats_set_elem *setel; /* Array of set value elements */ - nchan = icx_noofinks(nmask); + nchan = icx_noofinks(nmask); /* No. device channels */ ident = icx_inkmask2char(nmask, 1); bident = icx_inkmask2char(nmask, 0); @@ -921,10 +1008,19 @@ int main(int argc, char *argv[]) gfudge = 1; else if (nmask == ICX_K && ins == icSigCmykData) gfudge = 2; /* Should allow for other colorant combo's that include black */ - else if (icx_colorant_comb_match_icc(nmask, ins) == 0) { - error("ICC device space '%s' dosen't match TI1 '%s'", - icm2str(icmColorSpaceSignature, ins), - ident); // Should free(). + else { + if (!revlookup) { + if (icx_colorant_comb_match_icc(nmask, ins) == 0) + error("ICC device space '%s' dosen't match TI1 '%s'", + icm2str(icmColorSpaceSignature, ins), + ident); // Should free(). + } else { + if (icx_colorant_comb_match_icc(nmask, outs) == 0) + error("ICC device space '%s' dosen't match TI1 '%s'", + icm2str(icmColorSpaceSignature, ins), + ident); // Should free(). + + } } } else if (mlu != NULL) { /* Check if mpp is compatible with .ti1 */ @@ -953,6 +1049,7 @@ int main(int argc, char *argv[]) nsetel += nchan; /* For device values */ nsetel += 3; /* For XYZ/Lab */ + /* Locate device fields in source file, and add to output file */ for (j = 0; j < nchan; j++) { int imask; char fname[100]; @@ -970,6 +1067,19 @@ int main(int argc, char *argv[]) chix[j] = ii; } + /* Find PCS fields if doing reverse lookup */ + if (revlookup) { + for (j = 0; j < 3; j++) { + int ii; + + if ((ii = icg->find_field(icg, 0, islab ? labfname[j] : xyzfname[j])) < 0) + error ("Input file doesn't contain field %s",islab ? labfname[j] : xyzfname[j]); + if (icg->t[0].ftype[ii] != r_t) + error ("Field %s is wrong type",islab ? labfname[j] : xyzfname[j]); + pcsix[j] = ii; + } + } + /* Add PCS fields */ for (j = 0; j < 3; j++) { ocg->add_field(ocg, 0, dolab ? labfname[j] : xyzfname[j], r_t); @@ -1009,261 +1119,312 @@ int main(int argc, char *argv[]) if ((setel = (cgats_set_elem *)malloc(sizeof(cgats_set_elem) * nsetel)) == NULL) error("Malloc failed!"); - /* Read all the test patches in, convert them, */ + /* Read all the device test patches in, convert them to PCS, */ /* and write them out. */ - for (i = 0; i < npat; i++) { - int k = 0; - char *id; - double odev[ICX_MXINKS], dev[ICX_MXINKS], sep[ICX_MXINKS], PCS[3]; - xspect out; - - id = ((char *)icg->t[0].fdata[i][si]); - for (j = 0; j < nchan; j++) { - double dv = *((double *)icg->t[0].fdata[i][chix[j]]) / 100.0; - odev[j] = dev[j] = sep[j] = dv; - } - - if (gfudge) { - int nch; - - if (dosep) /* Figure number of channels into conversion */ - nch = sep_inn; - else - nch = inn; - - if (gfudge == 1) { /* Convert W -> RGB */ - double wval = dev[0]; - for (j = 0; j < nch; j++) - dev[j] = sep[j] = wval; - - } else { /* Convert K->xxxK */ - int kch; - int inmask; - double kval = dev[0]; - + if (!revlookup) { + for (i = 0; i < npat; i++) { + int k = 0; + char *id; + double odev[ICX_MXINKS], dev[ICX_MXINKS], sep[ICX_MXINKS], PCS[3]; + xspect out; + double qscale = (1 << qbits) - 1.0; + + for (j = 0; j < nchan; j++) { + double dv = *((double *)icg->t[0].fdata[i][chix[j]]) / 100.0; + if (qbits > 0) { + double vr; + dv *= qscale; + vr = floor(dv + 0.5); + if ((vr - dv) == 0.5 && (((int)vr) & 1) != 0) /* Round to even */ + vr -= 1.0; + dv = vr/qscale; + } + odev[j] = dev[j] = sep[j] = dv; + } + + if (gfudge) { + int nch; + if (dosep) /* Figure number of channels into conversion */ - inmask = sep_nmask; + nch = sep_inn; else - inmask = cnv_nmask; - - if (inmask == 0) - error("Input colorspace ambiguous - can't determine if it has black"); - - if ((kch = icx_ink2index(inmask, ICX_BLACK)) == -1) - error("Can't find black colorant for K fudge"); - for (j = 0; j < nch; j++) { - if (j == kch) - dev[j] = sep[j] = kval; + nch = inn; + + if (gfudge == 1) { /* Convert W -> RGB */ + double wval = dev[0]; + for (j = 0; j < nch; j++) + dev[j] = sep[j] = wval; + + } else { /* Convert K->xxxK */ + int kch; + int inmask; + double kval = dev[0]; + + if (dosep) /* Figure number of channels into conversion */ + inmask = sep_nmask; else - dev[j] = sep[j] = 0.0; - } - } - } - - if (dosep) { - if (in_tvenc != 0) { - if (in_tvenc == 1) { /* Video 16-235 range */ - icmRGB_2_VidRGB(dev, dev); - } else if (in_tvenc == 2) { /* Rec601 YCbCr */ - icmRec601_RGBd_2_YPbPr(dev, dev); - icmRecXXX_YPbPr_2_YCbCr(dev, dev); - } else if (in_tvenc == 3) { /* Rec709 YCbCr */ - icmRec709_RGBd_2_YPbPr(dev, dev); - icmRecXXX_YPbPr_2_YCbCr(dev, dev); - } else if (out_tvenc == 4) { /* Rec709 1250/50/2:1 YCbCr */ - icmRec709_50_RGBd_2_YPbPr(dev, dev); - icmRecXXX_YPbPr_2_YCbCr(dev, dev); - } else if (out_tvenc == 5) { /* Rec2020 Non-constant Luminance YCbCr */ - icmRec2020_NCL_RGBd_2_YPbPr(dev, dev); - icmRecXXX_YPbPr_2_YCbCr(dev, dev); - } else if (out_tvenc == 6) { /* Rec2020 Non-constant Luminance YCbCr */ - icmRec2020_CL_RGBd_2_YPbPr(dev, dev); - icmRecXXX_YPbPr_2_YCbCr(dev, dev); + inmask = cnv_nmask; + + if (inmask == 0) + error("Input colorspace ambiguous - can't determine if it has black"); + + if ((kch = icx_ink2index(inmask, ICX_BLACK)) == -1) + error("Can't find black colorant for K fudge"); + for (j = 0; j < nch; j++) { + if (j == kch) + dev[j] = sep[j] = kval; + else + dev[j] = sep[j] = 0.0; + } } } - - if (sep_luo->lookup(sep_luo, sep, dev) > 1) - error ("%d, %s",icc_icco->errc,icc_icco->err); - - if (out_tvenc != 0) { - if (out_tvenc == 1) { /* Video 16-235 range */ - icmVidRGB_2_RGB(sep, sep); - } else if (out_tvenc == 2) { /* Rec601 YCbCr */ - icmRecXXX_YCbCr_2_YPbPr(sep, sep); - icmRec601_YPbPr_2_RGBd(sep, sep); - } else if (out_tvenc == 3) { /* Rec709 1150/60/2:1 YCbCr */ - icmRecXXX_YCbCr_2_YPbPr(sep, sep); - icmRec709_YPbPr_2_RGBd(sep, sep); - } else if (out_tvenc == 4) { /* Rec709 1250/50/2:1 YCbCr */ - icmRecXXX_YCbCr_2_YPbPr(sep, sep); - icmRec709_50_YPbPr_2_RGBd(sep, sep); - } else if (out_tvenc == 5) { /* Rec2020 Non-constant Luminance YCbCr */ - icmRecXXX_YCbCr_2_YPbPr(sep, sep); - icmRec2020_NCL_YPbPr_2_RGBd(sep, sep); - } else if (out_tvenc == 6) { /* Rec2020 Non-constant Luminance YCbCr */ - icmRecXXX_YCbCr_2_YPbPr(sep, sep); - icmRec2020_CL_YPbPr_2_RGBd(sep, sep); + + if (dosep) { + if (in_tvenc != 0) { + if (in_tvenc == 1) { /* Video 16-235 range */ + icmRGB_2_VidRGB(dev, dev); + } else if (in_tvenc == 2) { /* Rec601 YCbCr */ + icmRec601_RGBd_2_YPbPr(dev, dev); + icmRecXXX_YPbPr_2_YCbCr(dev, dev); + } else if (in_tvenc == 3) { /* Rec709 YCbCr */ + icmRec709_RGBd_2_YPbPr(dev, dev); + icmRecXXX_YPbPr_2_YCbCr(dev, dev); + } else if (out_tvenc == 4) { /* Rec709 1250/50/2:1 YCbCr */ + icmRec709_50_RGBd_2_YPbPr(dev, dev); + icmRecXXX_YPbPr_2_YCbCr(dev, dev); + } else if (out_tvenc == 5) { /* Rec2020 Non-constant Luminance YCbCr */ + icmRec2020_NCL_RGBd_2_YPbPr(dev, dev); + icmRecXXX_YPbPr_2_YCbCr(dev, dev); + } else if (out_tvenc == 6) { /* Rec2020 Non-constant Luminance YCbCr */ + icmRec2020_CL_RGBd_2_YPbPr(dev, dev); + icmRecXXX_YPbPr_2_YCbCr(dev, dev); + } } - } - } - - /* Do calibration */ - if (applycal && cal != NULL) { - if (applycal == 1) - cal->interp(cal, sep, sep); - else if (applycal == 2) { - if (cal->inv_interp(cal, sep, sep)) - warning("Inverse calibration of patch %d failed",i+1); - } - } - - /* Add randomness and non-linearity to device values. */ - /* rdlevel = avg. dev. */ - /* Note dev/sep is 0-1.0 at this stage */ - for (j = 0; j < inn; j++) { - double dv = sep[j]; - if (rdlevel > 0.0) { - double rr; - if (unidist) - rr = d_rand(-2.0 * rdlevel, 2.0 * rdlevel); - else - rr = 1.2533 * rdlevel * norm_rand(); - dv += rr; - if (dv < 0.0) - dv = 0.0; - else if (dv > 1.0) - dv = 1.0; - } - if (j < 10 && chpow[j] != 1.0) { - dv = pow(dv, chpow[j]); - } - sep[j] = dv; - } - - /* Do color conversion */ - if (icc_luo != NULL) { - if (bt1886) { - icmLuMatrix *lu = (icmLuMatrix *)icc_luo; /* Safe to coerce */ -//printf("Matrix dev in: %s\n",icmPdv(inn, sep)); - lu->fwd_curve(lu, sep, sep); -//printf("Matrix after in curve: %s\n",icmPdv(inn, sep)); - lu->fwd_matrix(lu, PCS, sep); -//printf("Matrix after matrix XYZ %s Lab %s\n",icmPdv(3, PCS), icmPLab(PCS)); - bt1886_apply(&bt, lu, PCS, PCS); -//printf("Matrix after bt1186 XYZ %s Lab %s\n",icmPdv(3, PCS), icmPLab(PCS)); - lu->fwd_abs(lu, PCS, PCS); -//printf("Matrix after abs %s\n",icmPdv(3, PCS)); - } else { - if (icc_luo->lookup(icc_luo, PCS, sep) > 1) + + if (sep_luo->lookup(sep_luo, sep, dev) > 1) error ("%d, %s",icc_icco->errc,icc_icco->err); - } - - if (tbp[0] >= 0) { /* Doing black point scaling */ - - for (j = 0; j < 3; j++) - PCS[j] -= wp[j]; - icmMulBy3x3(PCS, bpt, PCS); - for (j = 0; j < 3; j++) - PCS[j] += wp[j]; + + if (out_tvenc != 0) { + if (out_tvenc == 1) { /* Video 16-235 range */ + icmVidRGB_2_RGB(sep, sep); + } else if (out_tvenc == 2) { /* Rec601 YCbCr */ + icmRecXXX_YCbCr_2_YPbPr(sep, sep); + icmRec601_YPbPr_2_RGBd(sep, sep); + } else if (out_tvenc == 3) { /* Rec709 1150/60/2:1 YCbCr */ + icmRecXXX_YCbCr_2_YPbPr(sep, sep); + icmRec709_YPbPr_2_RGBd(sep, sep); + } else if (out_tvenc == 4) { /* Rec709 1250/50/2:1 YCbCr */ + icmRecXXX_YCbCr_2_YPbPr(sep, sep); + icmRec709_50_YPbPr_2_RGBd(sep, sep); + } else if (out_tvenc == 5) { /* Rec2020 Non-constant Luminance YCbCr */ + icmRecXXX_YCbCr_2_YPbPr(sep, sep); + icmRec2020_NCL_YPbPr_2_RGBd(sep, sep); + } else if (out_tvenc == 6) { /* Rec2020 Non-constant Luminance YCbCr */ + icmRecXXX_YCbCr_2_YPbPr(sep, sep); + icmRec2020_CL_YPbPr_2_RGBd(sep, sep); + } + } } - } else if (mlu != NULL) { - mlu->lookup(mlu, PCS, sep); - if (dospec && spec_n > 0) { - mlu->lookup_spec(mlu, &out, sep); + /* Do calibration */ + if (applycal && cal != NULL) { + if (applycal == 1) + cal->interp(cal, sep, sep); + else if (applycal == 2) { + if (cal->inv_interp(cal, sep, sep)) + warning("Inverse calibration of patch %d failed",i+1); + } } - } else if (ti3 != NULL) { - int m; - double bdif = 1e6; - int bix = -1; - - /* Search for the closest device values in TI3 file */ - for (m = 0; m < ti3_npat; m++) { - double dif; - - for (dif = 0.0, j = 0; j < nchan; j++) { - double xx; - - xx = (*((double *)ti3->t[0].fdata[m][ti3_chix[j]]) / 100.0) - sep[j]; - dif += xx * xx; + + /* Add randomness and non-linearity to device values. */ + /* rdlevel = avg. dev. */ + /* Note dev/sep is 0-1.0 at this stage */ + for (j = 0; j < inn; j++) { + double dv = sep[j]; + if (rdlevel > 0.0) { + double rr; + if (unidist) + rr = d_rand(-2.0 * rdlevel, 2.0 * rdlevel); + else + rr = 1.2533 * rdlevel * norm_rand(); + dv += rr; + if (dv < 0.0) + dv = 0.0; + else if (dv > 1.0) + dv = 1.0; } - if (dif < bdif) { - bdif = dif; - bix = m; + if (j < 10 && chpow[j] != 1.0) { + dv = pow(dv, chpow[j]); } + sep[j] = dv; } - /* Copy best value over */ - if (!dosep) /* Doesn't make sense for separation ??? */ - for (j = 0; j < nchan; j++) { - dev[j] = *((double *)ti3->t[0].fdata[bix][ti3_chix[j]]) / 100.0; + + /* Do color conversion */ + if (icc_luo != NULL) { + if (bt1886) { + icmLuMatrix *lu = (icmLuMatrix *)icc_luo; /* Safe to coerce */ + //printf("Matrix dev in: %s\n",icmPdv(inn, sep)); + bt1886_fwd_curve(&bt, sep, sep); + //printf("Matrix after bt1886 curve: %s\n",icmPdv(inn, sep)); + lu->fwd_matrix(lu, PCS, sep); + //printf("Matrix after matrix XYZ %s Lab %s\n",icmPdv(3, PCS), icmPLab(PCS)); + bt1886_wp_adjust(&bt, PCS, PCS); + //printf("Matrix after bt1186 wp adj. XYZ %s Lab %s\n",icmPdv(3, PCS), icmPLab(PCS)); + lu->fwd_abs(lu, PCS, PCS); + //printf("Matrix after abs %s\n",icmPdv(3, PCS)); + } else { + if (icc_luo->lookup(icc_luo, PCS, sep) > 1) + error ("%d, %s",icc_icco->errc,icc_icco->err); + } + + if (tbp[0] >= 0) { /* Doing black point scaling */ + + for (j = 0; j < 3; j++) + PCS[j] -= wp[j]; + icmMulBy3x3(PCS, bpt, PCS); + for (j = 0; j < 3; j++) + PCS[j] += wp[j]; + } + + } else if (mlu != NULL) { + mlu->lookup(mlu, PCS, sep); + if (dospec && spec_n > 0) { + mlu->lookup_spec(mlu, &out, sep); + } + } else if (ti3 != NULL) { + int m; + double bdif = 1e6; + int bix = -1; + + /* Search for the closest device values in TI3 file */ + for (m = 0; m < ti3_npat; m++) { + double dif; + + for (dif = 0.0, j = 0; j < nchan; j++) { + double xx; + + xx = (*((double *)ti3->t[0].fdata[m][ti3_chix[j]]) / 100.0) - sep[j]; + dif += xx * xx; + } + if (dif < bdif) { + bdif = dif; + bix = m; + } + } + /* Copy best value over */ + if (!dosep) /* Doesn't make sense for separation ??? */ + for (j = 0; j < nchan; j++) { + dev[j] = *((double *)ti3->t[0].fdata[bix][ti3_chix[j]]) / 100.0; + } + for (j = 0; j < 3; j++) { + PCS[j] = *((double *)ti3->t[0].fdata[bix][ti3_pcsix[j]]); + } + if (ti3_isLab && !dolab) { /* Convert Lab to XYZ */ + icmLab2XYZ(&icmD50, PCS, PCS); + } else if (!ti3_isLab && dolab) { /* Convert XYZ to Lab */ + icmXYZ2Lab(&icmD50, PCS, PCS); + } else if (!ti3_isLab) { /* Convert XYZ100 to XYZ1 */ + PCS[0] /= 100.0; + PCS[1] /= 100.0; + PCS[2] /= 100.0; + } + if (dospec && spec_n > 0) { + for (j = 0; j < spec_n; j++) { + out.spec[j] = *((double *)ti3->t[0].fdata[bix][ti3_spi[j]]); + } } - for (j = 0; j < 3; j++) { - PCS[j] = *((double *)ti3->t[0].fdata[bix][ti3_pcsix[j]]); } - if (ti3_isLab && !dolab) { /* Convert Lab to XYZ */ - icmLab2XYZ(&icmD50, PCS, PCS); - } else if (!ti3_isLab && dolab) { /* Convert XYZ to Lab */ - icmXYZ2Lab(&icmD50, PCS, PCS); - } else if (!ti3_isLab) { /* Convert XYZ100 to XYZ1 */ - PCS[0] /= 100.0; - PCS[1] /= 100.0; - PCS[2] /= 100.0; + + id = ((char *)icg->t[0].fdata[i][si]); + setel[k++].c = id; + + for (j = 0; j < nchan; j++) + setel[k++].d = 100.0 * odev[j]; + + if (dolab == 0) { + PCS[0] *= 100.0; + PCS[1] *= 100.0; + PCS[2] *= 100.0; } + + /* Add randomness. rplevel is avg. dev. */ + /* Note PCS is 0..100 XYZ or Lab at this point */ + /* Adding uniform error to XYZ produces unreasonable */ + /* bumpiness near black, so scale it by Y */ + if (rplevel > 0.0) { + double opcs[3], ll = 1.0; + if (!dolab) + ll = 0.01 * PCS[1]; + for (j = 0; j < 3; j++) { + double dv = PCS[j]; + double rr; + opcs[j] = dv; + if (unidist) + rr = 100.0 * d_rand(-2.0 * rplevel, 2.0 * rplevel); + else + rr = 100.0 * 1.2533 * rplevel * norm_rand(); + dv += ll * rr; + + /* Don't let L*, X, Y or Z go negative */ + if ((!dolab || j == 0) && dv < 0.0) + dv = 0.0; + PCS[j] = dv; + } + //printf("~1 pcs %f %f %f -> %f %f %f\n", opcs[0], opcs[1], opcs[2], PCS[0], PCS[1], PCS[2]); + } + + setel[k++].d = PCS[0]; + setel[k++].d = PCS[1]; + setel[k++].d = PCS[2]; + if (dospec && spec_n > 0) { for (j = 0; j < spec_n; j++) { - out.spec[j] = *((double *)ti3->t[0].fdata[bix][ti3_spi[j]]); + setel[k++].d = 100.0 * out.spec[j]; } } + + ocg->add_setarr(ocg, 0, setel); } - setel[k++].c = id; - - for (j = 0; j < nchan; j++) - setel[k++].d = 100.0 * odev[j]; - - if (dolab == 0) { - PCS[0] *= 100.0; - PCS[1] *= 100.0; - PCS[2] *= 100.0; - } + /* Do reverse (PCS -> device) lookup */ + } else { - /* Add randomness. rplevel is avg. dev. */ - /* Note PCS is 0..100 XYZ or Lab at this point */ - /* Adding uniform error to XYZ produces unreasonable */ - /* bumpiness near black, so scale it by Y */ - if (rplevel > 0.0) { - double opcs[3], ll = 1.0; - if (!dolab) - ll = 0.01 * PCS[1]; + /* Read all the PCS test patches in, convert them to device values, */ + /* and write them out. */ + for (i = 0; i < npat; i++) { + int k = 0; + char *id; + double pcs[3]; + double dev[ICX_MXINKS]; + + /* read PCS values */ for (j = 0; j < 3; j++) { - double dv = PCS[j]; - double rr; - opcs[j] = dv; - if (unidist) - rr = 100.0 * d_rand(-2.0 * rplevel, 2.0 * rplevel); - else - rr = 100.0 * 1.2533 * rplevel * norm_rand(); - dv += ll * rr; - - /* Don't let L*, X, Y or Z go negative */ - if ((!dolab || j == 0) && dv < 0.0) - dv = 0.0; - PCS[j] = dv; + double pv = *((double *)icg->t[0].fdata[i][pcsix[j]]); + if (!islab) + pv /= 100.0; + pcs[j] = pv; } -//printf("~1 pcs %f %f %f -> %f %f %f\n", opcs[0], opcs[1], opcs[2], PCS[0], PCS[1], PCS[2]); - } - - setel[k++].d = PCS[0]; - setel[k++].d = PCS[1]; - setel[k++].d = PCS[2]; - - if (dospec && spec_n > 0) { - for (j = 0; j < spec_n; j++) { - setel[k++].d = 100.0 * out.spec[j]; + + /* Do PCS to device color conversion */ + if (icc_luo->lookup(icc_luo, dev, pcs) > 1) + error ("%d, %s",icc_icco->errc,icc_icco->err); + + /* Write the values */ + id = ((char *)icg->t[0].fdata[i][si]); + setel[k++].c = id; + + for (j = 0; j < nchan; j++) + setel[k++].d = 100.0 * dev[j]; + + for (j = 0; j < 3; j++) { + double pv = pcs[j]; + if (!islab) + pv *= 100.0; + setel[k++].d = pv; } + + ocg->add_setarr(ocg, 0, setel); } - - ocg->add_setarr(ocg, 0, setel); } free(setel); diff --git a/spectro/hcfr.c b/spectro/hcfr.c index c67a419..e5e1288 100644 --- a/spectro/hcfr.c +++ b/spectro/hcfr.c @@ -32,6 +32,13 @@ and agreed to support. */ +/* + TTBD: + Should really switch this to be high speed serial type of coms, + now that this is supported by inst API. + + */ + #include #include #include @@ -78,7 +85,7 @@ hcfr_command( ) { int rv, se; - if ((se = p->icom->write_read(p->icom, in, out, bsize, "\n", 1, to)) != 0) { + if ((se = p->icom->write_read(p->icom, in, 0, out, bsize, NULL, "\n", 1, to)) != 0) { int ec; a1logd(p->log, 1, "hcfr_command: serial i/o failure on write_read '%s'\n",icoms_fix(in)); return hcfr_interp_code((inst *)p, icoms2hcfr_err(se)); @@ -89,7 +96,7 @@ hcfr_command( } /* Do a break to check coms is working */ -inst_code +static inst_code hcfr_break( hcfr *p ) { @@ -108,7 +115,7 @@ hcfr_break( } /* Flush an pending messages from the device */ -inst_code +static inst_code hcfr_flush( hcfr *p ) { @@ -118,7 +125,7 @@ hcfr_flush( int rv; for (rv = ICOM_OK;;) { - rv = c->read(c, buf, MAX_MES_SIZE, '\000', 100000, 0.05); + rv = c->read(c, buf, MAX_MES_SIZE, NULL, '\000', 100000, 0.05); if (rv != ICOM_OK) break; /* Expect timeout with nothing to read */ } @@ -128,7 +135,7 @@ hcfr_flush( } /* Get and check the firmware version */ -inst_code +static inst_code hcfr_get_check_version( hcfr *p, int *pmaj, @@ -175,7 +182,7 @@ hcfr_get_check_version( } /* Get a raw measurement value */ -inst_code +static inst_code hcfr_get_rgb( hcfr *p, double rgb[3] /* return value */ @@ -263,7 +270,7 @@ hcfr_get_rgb( /* The basic calibration data is from my particular HCFR, measured */ /* against one of my CRT and LCD displays, with the reference XYZ */ /* derived from my i1pro. */ -inst_code +static inst_code hcfr_comp_matrix( hcfr *p ) { @@ -370,9 +377,6 @@ hcfr_init_coms(inst *pp, baud_rate br, flow_control fc, double tout) { if (p->icom->port_type(p->icom) != icomt_usb) { a1logd(p->log, 1, "hcfr_init_coms: expect hcfr to be USB\n"); return hcfr_interp_code((inst *)p, HCFR_UNKNOWN_MODEL); - } else { - a1logd(p->log, 1, "hcfr_init_coms: wrong communications type for device!\n"); - return inst_coms_fail; } /* Set config, interface, "Serial" write & read end points */ @@ -515,30 +519,46 @@ instClamping clamp) { /* NZ if clamp XYZ/Lab to be +ve */ return inst_ok; } +static inst_code set_base_disp_type(hcfr *p, int cbid); + /* Insert a colorimetric correction matrix in the instrument XYZ readings */ /* This is only valid for colorimetric instruments. */ /* To remove the matrix, pass NULL for the filter filename */ -inst_code hcfr_col_cor_mat( +static inst_code hcfr_col_cor_mat( inst *pp, +disptech dtech, /* Use disptech_unknown if not known */ \ +int cbid, /* Calibration display type base ID, 1 if unknown */\ double mtx[3][3] ) { hcfr *p = (hcfr *)pp; + inst_code ev; if (!p->gotcoms) return inst_no_coms; if (!p->inited) return inst_no_init; - if (mtx == NULL) { + if ((ev = set_base_disp_type(p, cbid)) != inst_ok) + return ev; + if (mtx == NULL) icmSetUnity3x3(p->ccmat); - } else { - if (p->cbid == 0) { - a1loge(p->log, 1, "hcfr: can't set col_cor_mat over non-base display type\n"); - return inst_wrong_setup; - } + else icmCpy3x3(p->ccmat, mtx); + p->dtech = dtech; + p->refrmode = disptech_get_id(dtech)->refr; + p->cbid = 0; /* Can't be base type now */ + + if (p->log->debug >= 4) { + a1logd(p->log,4,"ccmat = %f %f %f\n", + p->ccmat[0][0], p->ccmat[0][1], p->ccmat[0][2]); + a1logd(p->log,4," %f %f %f\n", + p->ccmat[1][0], p->ccmat[1][1], p->ccmat[1][2]); + a1logd(p->log,4," %f %f %f\n\n", + p->ccmat[2][0], p->ccmat[2][1], p->ccmat[2][2]); + a1logd(p->log,4,"ucbid = %d, cbid = %d\n",p->ucbid, p->cbid); + a1logd(p->log,4,"\n"); } - + return inst_ok; } @@ -621,7 +641,7 @@ hcfr_del(inst *pp) { } /* Return the instrument mode capabilities */ -void hcfr_capabilities(inst *pp, +static void hcfr_capabilities(inst *pp, inst_mode *pcap1, inst2_capability *pcap2, inst3_capability *pcap3) { @@ -648,7 +668,7 @@ inst3_capability *pcap3) { } /* Check device measurement mode */ -inst_code hcfr_check_mode(inst *pp, inst_mode m) { +static inst_code hcfr_check_mode(inst *pp, inst_mode m) { inst_mode cap; if (!pp->gotcoms) @@ -671,7 +691,7 @@ inst_code hcfr_check_mode(inst *pp, inst_mode m) { } /* Set device measurement mode */ -inst_code hcfr_set_mode(inst *pp, inst_mode m) { +static inst_code hcfr_set_mode(inst *pp, inst_mode m) { inst_code ev; if ((ev = hcfr_check_mode(pp, m)) != inst_ok) @@ -680,21 +700,23 @@ inst_code hcfr_set_mode(inst *pp, inst_mode m) { return inst_ok; } -inst_disptypesel hcfr_disptypesel[4] = { +static inst_disptypesel hcfr_disptypesel[4] = { { inst_dtflags_default, 0, "l", "LCD display", 0, + disptech_lcd, 0 }, { inst_dtflags_none, /* flags */ - 0, /* cbix */ + 0, /* cbid */ "c", /* sel */ "CRT display", /* desc */ 0, /* refr */ + disptech_crt, /* disptype */ 1 /* ix */ }, { @@ -703,6 +725,7 @@ inst_disptypesel hcfr_disptypesel[4] = { "R", "Raw Reading", 0, + disptech_unknown, 2 }, { @@ -711,6 +734,7 @@ inst_disptypesel hcfr_disptypesel[4] = { "", "", 0, + disptech_none, 0 } }; @@ -745,15 +769,58 @@ int recreate /* nz to re-check for new ccmx & ccss files */ /* Given a display type entry, setup for that type */ static inst_code set_disp_type(hcfr *p, inst_disptypesel *dentry) { - p->ix = dentry->ix; - p->refrmode = dentry->refr; - p->cbid = dentry->cbid; - if (dentry->flags & inst_dtflags_ccmx) { + inst_code ev; + if ((ev = set_base_disp_type(p, dentry->cc_cbid)) != inst_ok) + return ev; icmCpy3x3(p->ccmat, dentry->mat); + p->dtech = dentry->dtech; + p->cbid = 0; /* Can't be a base type */ + } else { + + p->ix = dentry->ix; + p->dtech = dentry->dtech; + p->cbid = dentry->cbid; + p->ucbid = dentry->cbid; /* This is underying base if dentry is base selection */ icmSetUnity3x3(p->ccmat); } + p->refrmode = dentry->refr; + + if (p->log->debug >= 4) { + a1logd(p->log,4,"ccmat = %f %f %f\n", + p->ccmat[0][0], p->ccmat[0][1], p->ccmat[0][2]); + a1logd(p->log,4," %f %f %f\n", + p->ccmat[1][0], p->ccmat[1][1], p->ccmat[1][2]); + a1logd(p->log,4," %f %f %f\n\n", + p->ccmat[2][0], p->ccmat[2][1], p->ccmat[2][2]); + a1logd(p->log,4,"ucbid = %d, cbid = %d\n",p->ucbid, p->cbid); + a1logd(p->log,4,"\n"); + } + + return inst_ok; +} + +/* Set the display type */ +static inst_code hcfr_set_disptype(inst *pp, int ix) { + hcfr *p = (hcfr *)pp; + inst_code ev; + inst_disptypesel *dentry; + + if (p->dtlist == NULL) { + if ((ev = inst_creat_disptype_list(pp, &p->ndtlist, &p->dtlist, + hcfr_disptypesel, 0 /* doccss*/, 1 /* doccmx */)) != inst_ok) + return ev; + } + + if (ix < 0 || ix >= p->ndtlist) + return inst_unsupported; + + dentry = &p->dtlist[ix]; + + if ((ev = set_disp_type(p, dentry)) != inst_ok) { + return ev; + } return inst_ok; } @@ -784,30 +851,55 @@ static inst_code set_default_disp_type(hcfr *p) { return inst_ok; } -/* Set the display type */ -static inst_code hcfr_set_disptype(inst *pp, int ix) { - hcfr *p = (hcfr *)pp; +/* Setup the display type to the given base type */ +static inst_code set_base_disp_type(hcfr *p, int cbid) { inst_code ev; - inst_disptypesel *dentry; + int i; + if (cbid == 0) { + a1loge(p->log, 1, "hcfr set_base_disp_type: can't set base display type of 0\n"); + return inst_wrong_setup; + } if (p->dtlist == NULL) { - if ((ev = inst_creat_disptype_list(pp, &p->ndtlist, &p->dtlist, + if ((ev = inst_creat_disptype_list((inst *)p, &p->ndtlist, &p->dtlist, hcfr_disptypesel, 0 /* doccss*/, 1 /* doccmx */)) != inst_ok) return ev; } - if (ix < 0 || ix >= p->ndtlist) - return inst_unsupported; - - dentry = &p->dtlist[ix]; - - if ((ev = set_disp_type(p, dentry)) != inst_ok) { + for (i = 0; !(p->dtlist[i].flags & inst_dtflags_end); i++) { + if (p->dtlist[i].cbid == cbid) + break; + } + if (p->dtlist[i].flags & inst_dtflags_end) { + a1loge(p->log, 1, "set_base_disp_type: failed to find cbid %d!\n",cbid); + return inst_wrong_setup; + } + if ((ev = set_disp_type(p, &p->dtlist[i])) != inst_ok) { return ev; } return inst_ok; } +/* Get the disptech and other corresponding info for the current */ +/* selected display type. Returns disptype_unknown by default. */ +/* Because refrmode can be overridden, it may not match the refrmode */ +/* of the dtech. (Pointers may be NULL if not needed) */ +static inst_code hcfr_get_disptechi( +inst *pp, +disptech *dtech, +int *refrmode, +int *cbid) { + hcfr *p = (hcfr *)pp; + if (dtech != NULL) + *dtech = p->dtech; + if (refrmode != NULL) + *refrmode = p->refrmode; + if (cbid != NULL) + *cbid = p->cbid; + return inst_ok; +} + /* * set or reset an optional mode * @@ -826,24 +918,6 @@ hcfr_get_set_opt(inst *pp, inst_opt_type m, ...) { return inst_ok; } - /* Get the display type information */ - if (m == inst_opt_get_dtinfo) { - va_list args; - int *refrmode, *cbid; - - va_start(args, m); - refrmode = va_arg(args, int *); - cbid = va_arg(args, int *); - va_end(args); - - if (refrmode != NULL) - *refrmode = p->refrmode; - if (cbid != NULL) - *cbid = p->cbid; - - return inst_ok; - } - return inst_unsupported; } @@ -864,6 +938,7 @@ extern hcfr *new_hcfr(icoms *icom, instType itype) { p->set_mode = hcfr_set_mode; p->get_disptypesel = hcfr_get_disptypesel; p->set_disptype = hcfr_set_disptype; + p->get_disptechi = hcfr_get_disptechi; p->get_set_opt = hcfr_get_set_opt; p->read_sample = hcfr_read_sample; p->col_cor_mat = hcfr_col_cor_mat; @@ -874,6 +949,7 @@ extern hcfr *new_hcfr(icoms *icom, instType itype) { p->itype = icom->itype; icmSetUnity3x3(p->ccmat); /* Set the colorimeter correction matrix to do nothing */ + p->dtech = disptech_unknown; return p; } diff --git a/spectro/hcfr.h b/spectro/hcfr.h index efbbd6c..8910cec 100644 --- a/spectro/hcfr.h +++ b/spectro/hcfr.h @@ -86,7 +86,9 @@ struct _hcfr { inst_disptypesel *dtlist; /* Display Type list */ int ndtlist; /* Number of valid dtlist entries */ int ix; /* 0 = CRT, 1 = LCD, 2 = raw RGB from sensors */ - int cbid; /* calibration base ID, 0 if not a base */ + disptech dtech; /* Display technology enum */ + int cbid; /* current calibration base ID, 0 if not a base */ + int ucbid; /* Underlying base ID if being used for matrix, 0 othewise */ int refrmode; /* Refresh mode (always 0) */ double ccmat[3][3]; /* Colorimeter correction matrix */ diff --git a/spectro/hidio.c b/spectro/hidio.c index 918bb83..c930755 100644 --- a/spectro/hidio.c +++ b/spectro/hidio.c @@ -30,6 +30,9 @@ New 10.5 and later code is not completely developed/debugged - the read and write routines simply error out. + ~~ It turns out that doing CFRetain() on the CFRunLoopRef and CFRunLoopSourceRef + is important (see usbio_ox.c). Make sure that is correct. + Perhaps we should try using IOHIDDeviceRegisterInputReportCallback() @@ -85,7 +88,7 @@ #include #include #include -#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) +#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__OpenBSD__) #include #include #else /* assume Linux */ @@ -239,10 +242,16 @@ int hid_get_paths(icompaths *p) { a1loge(p->log, ICOM_SYS, "hid_get_paths() calloc failed!\n"); return ICOM_SYS; } - if ((hidd->dpath = strdup(pdidd->DevicePath)) == NULL) { + if ((hidd->dpath = calloc(1, strlen(pdidd->DevicePath)+2)) == NULL) { a1loge(p->log, ICOM_SYS, "hid_get_paths() calloc failed!\n"); return ICOM_SYS; } + /* Windows 10 seems to return paths without the leading '\\' */ + /* (Or are the structure layouts not matching ?) */ + if (pdidd->DevicePath[0] == '\\' && + pdidd->DevicePath[1] != '\\') + strcpy(hidd->dpath, "\\"); + strcat(hidd->dpath, pdidd->DevicePath); /* Add the path to the list */ p->add_hid(p, pname, VendorID, ProductID, 0, hidd, itype); @@ -523,7 +532,11 @@ char **pnames /* List of process names to try and kill before opening */ ) { /* Make sure the port is open */ if (!p->is_open) { +#if defined(NT) + a1logd(p->log, 8, "hid_open_port: about to open HID port '%s' path '%s'\n",p->name,p->hidd->dpath); +#else a1logd(p->log, 8, "hid_open_port: about to open HID port '%s'\n",p->name); +#endif p->uflags = hidflags; @@ -538,21 +551,21 @@ char **pnames /* List of process names to try and kill before opening */ != INVALID_HANDLE_VALUE) { memset(&p->hidd->ols,0,sizeof(OVERLAPPED)); if ((p->hidd->ols.hEvent = CreateEvent(NULL, 0, 0, NULL)) == NULL) { - a1loge(p->log, ICOM_SYS, "hid_open_port: Failed to create HID " - "Event with %d'\n",GetLastError()); + a1loge(p->log, ICOM_SYS, "hid_open_port: Failed to create HID Event " + "with %d'\n",GetLastError()); return ICOM_SYS; } break; } if (tries > 0 && pnames != NULL) { /* Open failed. This could be the i1ProfileTray.exe */ - kill_nprocess(pnames, p->log); + kill_nprocess(pnames, p->log); /* Try and kill it once */ msec_sleep(100); } } if (p->hidd->fh == INVALID_HANDLE_VALUE) { a1loge(p->log, ICOM_SYS, "hid_open_port: Failed to open " - "HID '%s' with %d\n",GetLastError()); + "path '%s' with err %d\n",p->hidd->dpath, GetLastError()); return ICOM_SYS; } } diff --git a/spectro/hidio.h b/spectro/hidio.h index a7e94c8..90a741b 100644 --- a/spectro/hidio.h +++ b/spectro/hidio.h @@ -66,7 +66,7 @@ struct hid_idevice { /* Stuff setup when device is open: */ CFRunLoopRef rlr; #else - int lid; /* Location ID */ + int lid; /* Location ID */ io_object_t ioob; /* Object to open */ /* Stuff setup when device is open: */ IOHIDDeviceInterface122 **device; /* OS X HID device we've opened */ @@ -75,13 +75,10 @@ struct hid_idevice { CFRunLoopRef rlr; IOReturn result; # define HID_RBUF_SIZE 1024 - unsigned char rbuf[HID_RBUF_SIZE]; /* Buffer for read callback */ + unsigned char rbuf[HID_RBUF_SIZE]; /* Buffer for read callback */ int bread; /* Bytes read by callback */ #endif /* __MAC_OS_X_VERSION_MAX_ALLOWED < 1060 */ #endif -#if defined (UNIX) && !defined(__APPLE__) - int temp; /* Shut the compiler up */ -#endif }; /* Cleanup and then free an hidd entry */ diff --git a/spectro/huey.c b/spectro/huey.c index 8c307ac..79d0284 100644 --- a/spectro/huey.c +++ b/spectro/huey.c @@ -414,6 +414,7 @@ huey_wrreg_byte( int rsize; inst_code ev; + memset(ibuf, 0, 7); ibuf[0] = addr; ibuf[1] = inv; @@ -480,6 +481,7 @@ huey_rd_int_time( int rsize; inst_code ev; + memset(buf, 0, 7); if ((ev = huey_command(p, i1d_getintgt, buf, buf, 1.0, 1.0)) != inst_ok) return ev; @@ -499,6 +501,7 @@ huey_wr_int_time( int rsize; inst_code ev; + memset(buf, 0, 7); int2buf(buf, inv); if ((ev = huey_command(p, i1d_setintgt, buf, buf, 1.0, 1.0)) != inst_ok) return ev; @@ -522,17 +525,20 @@ huey_freq_measure( inst_code ev; /* Do the measurement, and return the Red value */ + memset(ibuf, 0, 7); ibuf[0] = 2; /* Sync mode 2 for CRT */ if ((ev = huey_command(p, i1d_m_red_2, ibuf, obuf, 1.0, 10.0)) != inst_ok) return ev; rgb[0] = (double)buf2int(obuf); /* Get the green value */ + memset(ibuf, 0, 7); if ((ev = huey_command(p, i1d_rd_green, ibuf, obuf, 1.0, 1.0)) != inst_ok) return ev; rgb[1] = (double)buf2int(obuf); /* Get the blue value */ + memset(ibuf, 0, 7); if ((ev = huey_command(p, i1d_rd_blue, ibuf, obuf, 1.0, 1.0)) != inst_ok) return ev; rgb[2] = (double)buf2int(obuf); @@ -556,6 +562,7 @@ huey_period_measure( inst_code ev; /* Set the edge count */ + memset(ibuf, 0, 7); short2buf(ibuf + 0, edgec[0]); short2buf(ibuf + 2, edgec[1]); short2buf(ibuf + 4, edgec[2]); @@ -566,11 +573,13 @@ huey_period_measure( rgb[0] = (double)buf2int(obuf); /* Get the green value */ + memset(ibuf, 0, 7); if ((ev = huey_command(p, i1d_rd_green, ibuf, obuf, 1.0, 1.0)) != inst_ok) return ev; rgb[1] = (double)buf2int(obuf); /* Get the blue value */ + memset(ibuf, 0, 7); if ((ev = huey_command(p, i1d_rd_blue, ibuf, obuf, 1.0, 1.0)) != inst_ok) return ev; rgb[2] = (double)buf2int(obuf); @@ -593,6 +602,7 @@ huey_take_raw_measurement_3( inst_code ev; /* Do the measurement, and return the Red value */ + memset(ibuf, 0, 7); short2buf(ibuf + 0, edgec[0]); ibuf[2] = 0; /* Channel */ if ((ev = huey_command(p, i1d_m_rgb_edge_2, ibuf, obuf, 1.0, 10.0)) != inst_ok) @@ -600,6 +610,7 @@ huey_take_raw_measurement_3( rgb[0] = (double)buf2int(obuf); /* Do the measurement, and return the Green value */ + memset(ibuf, 0, 7); short2buf(ibuf + 0, edgec[1]); ibuf[2] = 1; /* Channel */ if ((ev = huey_command(p, i1d_m_rgb_edge_2, ibuf, obuf, 1.0, 10.0)) != inst_ok) @@ -607,6 +618,7 @@ huey_take_raw_measurement_3( rgb[1] = (double)buf2int(obuf); /* Do the measurement, and return the Blue value */ + memset(ibuf, 0, 7); short2buf(ibuf + 0, edgec[2]); ibuf[2] = 2; /* Channel */ if ((ev = huey_command(p, i1d_m_rgb_edge_2, ibuf, obuf, 1.0, 10.0)) != inst_ok) @@ -742,6 +754,7 @@ huey_take_amb_measurement_1( int rsize; inst_code ev; + memset(ibuf, 0, 7); a1 &= 0xff; ibuf[0] = a1; ibuf[1] = syncmode; @@ -795,6 +808,7 @@ huey_set_LEDs( unsigned char obuf[8]; inst_code ev; + memset(ibuf, 0, 7); mask &= 0xf; p->led_state = mask; @@ -867,10 +881,12 @@ huey_check_unlock( a1logd(p->log,2,"huey_check_unlock: called\n"); /* Check the instrument status */ + memset(buf, 0, 7); if ((ev = huey_command(p, i1d_status, buf, buf, 1.0,1.0)) != inst_ok) return ev; if (strncmp((char *)buf, "Locked", 6) == 0) { + memset(buf, 0, 7); if (p->lenovo) strcpy((char *)buf,"huyL"); else @@ -879,11 +895,13 @@ huey_check_unlock( if ((ev = huey_command(p, i1d_unlock, buf, buf, 1.0,1.0)) != inst_ok) return ev; + memset(buf, 0, 7); if ((ev = huey_command(p, i1d_status, buf, buf, 1.0,1.0)) != inst_ok) return ev; } if (strncmp((char *)buf, "huL002", 6) != 0 /* Lenovo Huey ? */ + && strncmp((char *)buf, "ECCM2 ", 6) != 0 /* Lenovo Thinkpad W530 Huey ? */ && strncmp((char *)buf, "Cir001", 6) != 0) { /* Huey */ a1logd(p->log,1,"huey_check_unlock: unknown model '%s'\n",buf); return huey_interp_code((inst *)p, HUEY_UNKNOWN_MODEL); @@ -1059,6 +1077,7 @@ huey_init_coms(inst *pp, baud_rate br, flow_control fc, double tout) { } /* Check instrument is responding */ + memset(buf, 0, 7); if ((ev = huey_command(p, i1d_status, buf, buf, 1.0, 1.0)) != inst_ok) { a1logd(p->log, 1, "huey_init_coms: instrument didn't respond 0x%x\n",ev); return ev; @@ -1188,6 +1207,7 @@ instClamping clamp) { /* NZ if clamp XYZ/Lab to be +ve */ if ((rv = huey_take_XYZ_measurement(p, val->XYZ)) != inst_ok) { return rv; } + /* This may not change anything since instrument may clamp */ if (clamp) icmClamp3(val->XYZ, val->XYZ); @@ -1206,30 +1226,47 @@ instClamping clamp) { /* NZ if clamp XYZ/Lab to be +ve */ return rv; } +static inst_code set_base_disp_type(huey *p, int cbid); + /* Insert a colorimetric correction matrix in the instrument XYZ readings */ /* This is only valid for colorimetric instruments. */ /* To remove the matrix, pass NULL for the filter filename */ inst_code huey_col_cor_mat( inst *pp, +disptech dtech, /* Use disptech_unknown if not known */ \ +int cbid, /* Calibration display type base ID, 1 if unknown */\ double mtx[3][3] ) { huey *p = (huey *)pp; + inst_code ev; if (!p->gotcoms) return inst_no_coms; if (!p->inited) return inst_no_init; - if (mtx == NULL) { + if ((ev = set_base_disp_type(p, cbid)) != inst_ok) + return ev; + if (mtx == NULL) icmSetUnity3x3(p->ccmat); - } else { - if (p->cbid == 0) { - a1loge(p->log, 1, "huey: can't set col_cor_mat over non-base display type\n"); - return inst_wrong_setup; - } + else icmCpy3x3(p->ccmat, mtx); - } + + p->dtech = dtech; + p->refrmode = disptech_get_id(dtech)->refr; + p->cbid = 0; /* Can't be base type now */ + if (p->log->debug >= 4) { + a1logd(p->log,4,"ccmat = %f %f %f\n", + p->ccmat[0][0], p->ccmat[0][1], p->ccmat[0][2]); + a1logd(p->log,4," %f %f %f\n", + p->ccmat[1][0], p->ccmat[1][1], p->ccmat[1][2]); + a1logd(p->log,4," %f %f %f\n\n", + p->ccmat[2][0], p->ccmat[2][1], p->ccmat[2][2]); + a1logd(p->log,4,"ucbid = %d, cbid = %d\n",p->ucbid, p->cbid); + a1logd(p->log,4,"\n"); + } + return inst_ok; } @@ -1367,7 +1404,7 @@ huey_del(inst *pp) { } /* Return the instrument mode capabilities */ -void huey_capabilities(inst *pp, +static void huey_capabilities(inst *pp, inst_mode *pcap1, inst2_capability *pcap2, inst3_capability *pcap3) { @@ -1397,7 +1434,7 @@ inst3_capability *pcap3) { } /* Check device measurement mode */ -inst_code huey_check_mode(inst *pp, inst_mode m) { +static inst_code huey_check_mode(inst *pp, inst_mode m) { huey *p = (huey *)pp; inst_mode cap; @@ -1422,7 +1459,7 @@ inst_code huey_check_mode(inst *pp, inst_mode m) { } /* Set device measurement mode */ -inst_code huey_set_mode(inst *pp, inst_mode m) { +static inst_code huey_set_mode(inst *pp, inst_mode m) { huey *p = (huey *)pp; inst_code ev; @@ -1434,21 +1471,23 @@ inst_code huey_set_mode(inst *pp, inst_mode m) { return inst_ok; } -inst_disptypesel huey_disptypesel[3] = { +static inst_disptypesel huey_disptypesel[3] = { { inst_dtflags_default, 1, "l", "LCD display", 0, + disptech_lcd, 0 }, { inst_dtflags_none, /* flags */ - 2, /* cbix */ + 2, /* cbid */ "c", /* sel */ "CRT display", /* desc */ 1, /* refr */ + disptech_crt, /* disptype */ 1 /* ix */ }, { @@ -1457,6 +1496,7 @@ inst_disptypesel huey_disptypesel[3] = { "", "", 0, + disptech_none, 0 } }; @@ -1491,16 +1531,59 @@ int recreate /* nz to re-check for new ccmx & ccss files */ /* Given a display type entry, setup for that type */ static inst_code set_disp_type(huey *p, inst_disptypesel *dentry) { - p->icx = dentry->ix; - p->refrmode = dentry->refr; - p->cbid = dentry->cbid; - if (dentry->flags & inst_dtflags_ccmx) { + inst_code ev; + if ((ev = set_base_disp_type(p, dentry->cc_cbid)) != inst_ok) + return ev; icmCpy3x3(p->ccmat, dentry->mat); + p->dtech = dentry->dtech; + p->cbid = 0; /* Can't be a base type */ + } else { + p->icx = dentry->ix; + p->dtech = dentry->dtech; + p->cbid = dentry->cbid; + p->ucbid = dentry->cbid; /* This is underying base if dentry is base selection */ icmSetUnity3x3(p->ccmat); } + p->refrmode = dentry->refr; + + if (p->log->debug >= 4) { + a1logd(p->log,4,"ccmat = %f %f %f\n", + p->ccmat[0][0], p->ccmat[0][1], p->ccmat[0][2]); + a1logd(p->log,4," %f %f %f\n", + p->ccmat[1][0], p->ccmat[1][1], p->ccmat[1][2]); + a1logd(p->log,4," %f %f %f\n\n", + p->ccmat[2][0], p->ccmat[2][1], p->ccmat[2][2]); + a1logd(p->log,4,"ucbid = %d, cbid = %d\n",p->ucbid, p->cbid); + a1logd(p->log,4,"\n"); + } + + return inst_ok; +} + +/* Set the display type */ +static inst_code huey_set_disptype(inst *pp, int ix) { + huey *p = (huey *)pp; + inst_code ev; + inst_disptypesel *dentry; + + if (p->dtlist == NULL) { + if ((ev = inst_creat_disptype_list(pp, &p->ndtlist, &p->dtlist, + huey_disptypesel, 0 /* doccss*/, 1 /* doccmx */)) != inst_ok) + return ev; + } + + if (ix < 0 || ix >= p->ndtlist) + return inst_unsupported; + + dentry = &p->dtlist[ix]; + + if ((ev = set_disp_type(p, dentry)) != inst_ok) { + return ev; + } + return inst_ok; } @@ -1530,30 +1613,56 @@ static inst_code set_default_disp_type(huey *p) { return inst_ok; } -/* Set the display type */ -static inst_code huey_set_disptype(inst *pp, int ix) { - huey *p = (huey *)pp; +/* Setup the display type to the given base type */ +static inst_code set_base_disp_type(huey *p, int cbid) { inst_code ev; - inst_disptypesel *dentry; + int i; + if (cbid == 0) { + a1loge(p->log, 1, "huey set_base_disp_type: can't set base display type of 0\n"); + return inst_wrong_setup; + } if (p->dtlist == NULL) { - if ((ev = inst_creat_disptype_list(pp, &p->ndtlist, &p->dtlist, + if ((ev = inst_creat_disptype_list((inst *)p, &p->ndtlist, &p->dtlist, huey_disptypesel, 0 /* doccss*/, 1 /* doccmx */)) != inst_ok) return ev; } - if (ix < 0 || ix >= p->ndtlist) - return inst_unsupported; - - dentry = &p->dtlist[ix]; - - if ((ev = set_disp_type(p, dentry)) != inst_ok) { + for (i = 0; !(p->dtlist[i].flags & inst_dtflags_end); i++) { + if (!(p->dtlist[i].flags & inst_dtflags_ccmx) /* Prevent infinite recursion */ + && p->dtlist[i].cbid == cbid) + break; + } + if (p->dtlist[i].flags & inst_dtflags_end) { + a1loge(p->log, 1, "set_base_disp_type: failed to find cbid %d!\n",cbid); + return inst_wrong_setup; + } + if ((ev = set_disp_type(p, &p->dtlist[i])) != inst_ok) { return ev; } return inst_ok; } +/* Get the disptech and other corresponding info for the current */ +/* selected display type. Returns disptype_unknown by default. */ +/* Because refrmode can be overridden, it may not match the refrmode */ +/* of the dtech. (Pointers may be NULL if not needed) */ +static inst_code huey_get_disptechi( +inst *pp, +disptech *dtech, +int *refrmode, +int *cbid) { + huey *p = (huey *)pp; + if (dtech != NULL) + *dtech = p->dtech; + if (refrmode != NULL) + *refrmode = p->refrmode; + if (cbid != NULL) + *cbid = p->cbid; + return inst_ok; +} + /* * set or reset an optional mode * @@ -1573,24 +1682,6 @@ huey_get_set_opt(inst *pp, inst_opt_type m, ...) return inst_ok; } - /* Get the display type information */ - if (m == inst_opt_get_dtinfo) { - va_list args; - int *refrmode, *cbid; - - va_start(args, m); - refrmode = va_arg(args, int *); - cbid = va_arg(args, int *); - va_end(args); - - if (refrmode != NULL) - *refrmode = p->refrmode; - if (cbid != NULL) - *cbid = p->cbid; - - return inst_ok; - } - if (!p->gotcoms) return inst_no_coms; if (!p->inited) @@ -1645,6 +1736,7 @@ extern huey *new_huey(icoms *icom, instType itype) { p->set_mode = huey_set_mode; p->get_disptypesel = huey_get_disptypesel; p->set_disptype = huey_set_disptype; + p->get_disptechi = huey_get_disptechi; p->get_set_opt = huey_get_set_opt; p->read_sample = huey_read_sample; p->col_cor_mat = huey_col_cor_mat; @@ -1655,6 +1747,7 @@ extern huey *new_huey(icoms *icom, instType itype) { p->itype = icom->itype; icmSetUnity3x3(p->ccmat); /* Set the colorimeter correction matrix to do nothing */ + p->dtech = disptech_unknown; return p; } diff --git a/spectro/huey.h b/spectro/huey.h index 6b8858a..aec96a0 100644 --- a/spectro/huey.h +++ b/spectro/huey.h @@ -117,7 +117,9 @@ struct _huey { inst_disptypesel *dtlist; /* Display Type list */ int ndtlist; /* Number of valid dtlist entries */ int icx; /* 0 = LCD, 1 = CRT matrix */ - int cbid; /* calibration base ID, 0 if not a base */ + disptech dtech; /* Display technology enum */ + int cbid; /* current calibration base ID, 0 if not a base */ + int ucbid; /* Underlying base ID if being used for matrix, 0 othewise */ int refrmode; /* Refresh mode (always 0) */ double ccmat[3][3]; /* Colorimeter correction matrix */ diff --git a/spectro/i1d3.c b/spectro/i1d3.c index cf0fc08..b088728 100644 --- a/spectro/i1d3.c +++ b/spectro/i1d3.c @@ -56,7 +56,10 @@ #include "i1d3.h" #undef PLOT_SPECTRA /* Plot the sensor senitivity spectra */ +#undef PLOT_XYZSPECTRA /* Plot the calibrated sensor senitivity spectra */ #undef SAVE_SPECTRA /* Save the sensor senitivity spectra to "sensors.cmf" */ +#undef SAVE_XYZSPECTRA /* Save the XYZ senitivity spectra to "sensorsxyz.cmf" (scale 1.4) */ +#undef SAVE_STDXYZ /* save 1931 2 degree to stdobsxyz.cmf */ #undef PLOT_REFRESH /* Plot data used to determine refresh rate */ #undef PLOT_UPDELAY /* Plot data used to determine display update delay */ @@ -560,12 +563,13 @@ i1d3_unlock( i1d3_dtype dtype; /* Base type enumerator */ i1d3_dtype stype; /* Sub type enumerator */ } codes[] = { - { "i1Display3 ", { 0xe9622e9f, 0x8d63e133 }, i1d3_disppro, i1d3_disppro }, + { "i1Display3 ", { 0xe9622e9f, 0x8d63e133 }, i1d3_disppro, i1d3_disppro }, { "Colormunki Display ", { 0xe01e6e0a, 0x257462de }, i1d3_munkdisp, i1d3_munkdisp }, - { "i1Display3 ", { 0xcaa62b2c, 0x30815b61 }, i1d3_disppro, i1d3_oem }, - { "i1Display3 ", { 0xa9119479, 0x5b168761 }, i1d3_disppro, i1d3_nec_ssp }, - { "i1Display3 ", { 0x160eb6ae, 0x14440e70 }, i1d3_disppro, i1d3_quato_sh3 }, - { "i1Display3 ", { 0x291e41d7, 0x51937bdd }, i1d3_disppro, i1d3_hp_dreamc }, + { "i1Display3 ", { 0xcaa62b2c, 0x30815b61 }, i1d3_disppro, i1d3_oem }, + { "i1Display3 ", { 0xa9119479, 0x5b168761 }, i1d3_disppro, i1d3_nec_ssp }, + { "i1Display3 ", { 0x160eb6ae, 0x14440e70 }, i1d3_disppro, i1d3_quato_sh3 }, + { "i1Display3 ", { 0x291e41d7, 0x51937bdd }, i1d3_disppro, i1d3_hp_dreamc }, + { "i1Display3 ", { 0xc9bfafe0, 0x02871166 }, i1d3_disppro, i1d3_sc_c6 }, { NULL } }; inst_code ev; @@ -1918,6 +1922,12 @@ i1d3_take_XYZ_measurement( int pos; inst_code ev; + i1d3_mmode mmode = i1d3_adaptive; + + if (IMODETST(p->mode, inst_mode_emis_nonadaptive)) { + mmode = i1d3_frequency; + } + if (IMODETST(p->mode, inst_mode_emis_ambient)) { /* Check that the ambient filter is in place */ @@ -1928,7 +1938,7 @@ i1d3_take_XYZ_measurement( return i1d3_interp_code((inst *)p, I1D3_SPOS_EMIS); /* Best type of reading, including refresh support */ - if ((ev = i1d3_take_emis_measurement(p, i1d3_adaptive, XYZ)) != inst_ok) + if ((ev = i1d3_take_emis_measurement(p, mmode, XYZ)) != inst_ok) return ev; /* Multiply by ambient calibration matrix */ @@ -1944,7 +1954,7 @@ i1d3_take_XYZ_measurement( return i1d3_interp_code((inst *)p, I1D3_SPOS_EMIS); /* Best type of reading, including refresh support */ - if ((ev = i1d3_take_emis_measurement(p, i1d3_adaptive, XYZ)) != inst_ok) + if ((ev = i1d3_take_emis_measurement(p, mmode, XYZ)) != inst_ok) return ev; /* Multiply by current emissive calibration matrix */ @@ -2173,6 +2183,7 @@ i1d3_comp_calmat( icmTranspose3x3(mat, mat); /* Otherwise we compute the least squares calibration matrix. */ + /* (Another possibility is to use a minimization algorithm) */ } else { /* Multiply the [3 x nsamp] XYZ matrix by the [nsamp x 3] RGB */ /* matrix to produce the [3 x 3] design matrix. */ @@ -2202,6 +2213,73 @@ i1d3_comp_calmat( free_dmatrix(sampXYZ, 0, nsamp-1, 0, 3-1); free_dmatrix(sampRGB, 0, nsamp-1, 0, 3-1); +#if defined(PLOT_XYZSPECTRA) || defined(SAVE_XYZSPECTRA) + + /* Compute the calibrated sensor spectra */ + { + int i, j, k; + xspect calcmfs[3]; + double scale; + xspect *xyz[3]; + standardObserver(xyz, icxOT_CIE_1931_2); + + for (j = 0; j < 3; j++) { + XSPECT_COPY_INFO(&calcmfs[j], &RGBcmfs[j]); + } + + /* For each wavelength */ + for (i = 0; i < RGBcmfs[0].spec_n; i++) { + /* Do matrix multiply */ + for (j = 0; j < 3; j++) { + calcmfs[j].spec[i] = 0.0; + for (k = 0; k < 3; k++) { + calcmfs[j].spec[i] += mat[j][k] * RGBcmfs[k].spec[i]; + } + } + } + + /* Scale the X to be 1.0 */ + scale = value_xspect(xyz[1], 555.0)/value_xspect(&calcmfs[1], 555.0); + for (i = 0; i < RGBcmfs[0].spec_n; i++) { + for (j = 0; j < 3; j++) { + calcmfs[j].spec[i] *= scale; + } + } + + +#ifdef PLOT_XYZSPECTRA + { + double xx[XSPECT_MAX_BANDS]; + double y1[XSPECT_MAX_BANDS]; + double y2[XSPECT_MAX_BANDS]; + double y3[XSPECT_MAX_BANDS]; + + for (i = 0; i < calcmfs[0].spec_n; i++) { + xx[i] = XSPECT_XWL(&calcmfs[0], i); + y1[i] = calcmfs[0].spec[i]; + y2[i] = calcmfs[1].spec[i]; + y3[i] = calcmfs[2].spec[i]; + } + printf("The calibrated sensor sensitivities\n"); + do_plot(xx, y1, y2, y3, calcmfs[0].spec_n); + } +#endif /* PLOT_XYZSPECTRA */ +#ifdef SAVE_XYZSPECTRA /* Save the default XYZ senitivity spectra to "sensorsxyz.cmf" */ + write_nxspect("sensorsxyz.cmf", calcmfs, 3, 0); +#endif + } +#endif /* PLOT_XYZSPECTRA || SAVE_XYZSPECTRA */ +#ifdef SAVE_STDXYZ + { + xspect *xyz[3], xyzl[3]; + standardObserver(xyz, icxOT_CIE_1931_2); + xyzl[0] = *xyz[0]; + xyzl[1] = *xyz[1]; + xyzl[2] = *xyz[2]; + write_nxspect("stdobsxyz.cmf", xyzl, 3, 0); + } +#endif /* SAVE_STDXYZ */ + return inst_ok; } @@ -2232,23 +2310,23 @@ i1d3_set_speccal( return inst_ok; } - /* Preset the calibration to a matrix. The spectral type is set to none */ static inst_code i1d3_set_matcal(i1d3 *p, double mtx[3][3]) { + + if (p->samples != NULL) + free(p->samples); + p->samples = NULL; + p->nsamp = 0; + if (mtx == NULL) icmSetUnity3x3(p->ccmat); - else { - if (p->cbid == 0) { - a1loge(p->log, 1, "i1d3: can't set col_cor_mat over non-base display type\n"); - return inst_wrong_setup; - } + else icmCpy3x3(p->ccmat, mtx); - } + return inst_ok; } - /* Set the calibration to the currently preset type */ static inst_code i1d3_set_cal(i1d3 *p) { @@ -2269,39 +2347,45 @@ i1d3_set_cal(i1d3 *p) { icmSetUnity3x3(p->ccmat); /* to be sure to be sure... */ - } else { /* Assume matrix */ + } else { /* Assume default spectral samples, + possible matrix */ /* Create the default MIbLSr calibration matrix */ if ((ev = i1d3_comp_calmat(p, p->emis_cal, p->obType, p->custObserver, p->sens, p->sens, 3)) != inst_ok) { - a1logd(p->log, 1, "i1d3_set_disp_type: comp_calmat dflt failed with rv = 0x%x\n",ev); + a1logd(p->log, 1, "i1d3_set_cal: comp_calmat dflt failed with rv = 0x%x\n",ev); return ev; } /* Use MIbLSr for ambient */ if ((ev = i1d3_comp_calmat(p, p->ambi_cal, p->obType, p->custObserver, p->ambi, p->ambi, 3)) != inst_ok) return ev; + + /* We assume any ccmat has/will be set by caller */ } if (p->log->debug >= 4) { - a1logd(p->log,4,"Emissive matrix = %f %f %f\n", - p->emis_cal[0][0], p->emis_cal[0][1], p->emis_cal[0][2]); - a1logd(p->log,4," %f %f %f\n", - p->emis_cal[1][0], p->emis_cal[1][1], p->emis_cal[1][2]); - a1logd(p->log,4," %f %f %f\n\n", - p->emis_cal[2][0], p->emis_cal[2][1], p->emis_cal[2][2]); - a1logd(p->log,4,"Ambient matrix = %f %f %f\n", - p->ambi_cal[0][0], p->ambi_cal[0][1], p->ambi_cal[0][2]); - a1logd(p->log,4," %f %f %f\n", - p->ambi_cal[1][0], p->ambi_cal[1][1], p->ambi_cal[1][2]); - a1logd(p->log,4," %f %f %f\n\n", - p->ambi_cal[2][0], p->ambi_cal[2][1], p->ambi_cal[2][2]); + if (IMODETST(p->mode, inst_mode_emis_ambient)) { + a1logd(p->log,4,"Ambient matrix = %f %f %f\n", + p->ambi_cal[0][0], p->ambi_cal[0][1], p->ambi_cal[0][2]); + a1logd(p->log,4," %f %f %f\n", + p->ambi_cal[1][0], p->ambi_cal[1][1], p->ambi_cal[1][2]); + a1logd(p->log,4," %f %f %f\n\n", + p->ambi_cal[2][0], p->ambi_cal[2][1], p->ambi_cal[2][2]); + } else { + a1logd(p->log,4,"Emissive matrix = %f %f %f\n", + p->emis_cal[0][0], p->emis_cal[0][1], p->emis_cal[0][2]); + a1logd(p->log,4," %f %f %f\n", + p->emis_cal[1][0], p->emis_cal[1][1], p->emis_cal[1][2]); + a1logd(p->log,4," %f %f %f\n\n", + p->emis_cal[2][0], p->emis_cal[2][1], p->emis_cal[2][2]); + } a1logd(p->log,4,"ccmat = %f %f %f\n", p->ccmat[0][0], p->ccmat[0][1], p->ccmat[0][2]); a1logd(p->log,4," %f %f %f\n", p->ccmat[1][0], p->ccmat[1][1], p->ccmat[1][2]); a1logd(p->log,4," %f %f %f\n\n", p->ccmat[2][0], p->ccmat[2][1], p->ccmat[2][2]); + a1logd(p->log,4,"ucbid = %d, cbid = %d\n",p->ucbid, p->cbid); a1logd(p->log,4,"\n"); } @@ -2381,39 +2465,16 @@ i1d3_init_coms(inst *pp, baud_rate br, flow_control fc, double tout) { return inst_ok; } -// Print bytes as hex to debug log */ -static void dump_bytes(a1log *log, char *pfx, unsigned char *buf, int len) { - int i, j, ii; - char oline[200] = { '\000' }, *bp = oline; - for (i = j = 0; i < len; i++) { - if ((i % 16) == 0) - bp += sprintf(bp,"%s%04x:",pfx,i); - bp += sprintf(bp," %02x",buf[i]); - if ((i+1) >= len || ((i+1) % 16) == 0) { - for (ii = i; ((ii+1) % 16) != 0; ii++) - bp += sprintf(bp," "); - bp += sprintf(bp," "); - for (; j <= i; j++) { - if (!(buf[j] & 0x80) && isprint(buf[j])) - bp += sprintf(bp,"%c",buf[j]); - else - bp += sprintf(bp,"."); - } - bp += sprintf(bp,"\n"); - a1logd(log,0, "%s", oline); - bp = oline; - } - } -} - /* Diffuser position thread. */ /* Poll the instrument at 100msec intervals */ -int i1d3_diff_thread(void *pp) { +static int i1d3_diff_thread(void *pp) { int nfailed = 0; i1d3 *p = (i1d3 *)pp; inst_code rv = inst_ok; a1logd(p->log,3,"Diffuser thread started\n"); - for (nfailed = 0; nfailed < 5;) { +// for (nfailed = 0; nfailed < 5;) + /* Try indefinitely, in case instrument is put to sleep */ + for (;;) { int pos; /* Don't get diffpos if we're doing something else that */ @@ -2503,7 +2564,7 @@ i1d3_init_inst(inst *pp) { return ev; if (p->log->debug >= 8) { a1logd(p->log, 8, "Internal EEPROM:\n"); - dump_bytes(p->log, " ", buf, 256); + adump_bytes(p->log, " ", buf, 0, 256); } /* Decode the Internal EEPRom */ if ((ev = i1d3_decode_intEE(p, buf)) != inst_ok) @@ -2513,7 +2574,7 @@ i1d3_init_inst(inst *pp) { return ev; if (p->log->debug >= 8) { a1logd(p->log, 8, "External EEPROM:\n"); - dump_bytes(p->log, " ", buf, 8192); + adump_bytes(p->log, " ", buf, 0, 8192); } /* Decode the External EEPRom */ if ((ev = i1d3_decode_extEE(p, buf)) != inst_ok) @@ -2656,10 +2717,14 @@ instClamping clamp) { /* NZ if clamp XYZ/Lab to be +ve */ } } + /* Read the XYZ value */ - if ((rv = i1d3_take_XYZ_measurement(p, val->XYZ)) != inst_ok) + rv = i1d3_take_XYZ_measurement(p, val->XYZ); + + if (rv != inst_ok) return rv; + /* This may not change anything since instrument may clamp */ if (clamp) icmClamp3(val->XYZ, val->XYZ); @@ -2696,21 +2761,55 @@ double *ref_rate) { if (p->dtype == i1d3_munkdisp) return inst_unsupported; + if (ref_rate != NULL) + *ref_rate = 0.0; + if ((rv = i1d3_imp_measure_refresh(p, ref_rate, NULL)) != inst_ok) return rv; - if (*ref_rate == 0.0) + + if (ref_rate != NULL && *ref_rate == 0.0) return inst_misread; return inst_ok; } +/* Make a possible change of the refresh mode */ +static void update_refmode(i1d3 *p, int refrmode) { + + if ( IMODETST(p->mode, inst_mode_emis_norefresh_ovd)) { /* Must test this first! */ + refrmode = 0; + } else if (IMODETST(p->mode, inst_mode_emis_refresh_ovd)) { + refrmode = 1; + } + + if (p->refrmode != refrmode) { + p->rrset = 0; /* This is a hint we may have swapped displays */ + p->refrvalid = 0; + } + p->refrmode = refrmode; + + /* default before any refresh rate calibration */ + if (p->refrmode) { + p->inttime = 2.0 * p->dinttime; /* Double integration time */ + } else { + p->inttime = p->dinttime; /* Normal integration time */ + } + if (p->omininttime != 0.0) + p->inttime = p->omininttime; /* Override */ + p->mininttime = p->inttime; /* Current value */ +} + +static inst_code set_base_disp_type(i1d3 *p, int cbid); + /* Insert a colorimetric correction matrix in the instrument XYZ readings */ /* This is only valid for colorimetric instruments. */ /* To remove the matrix, pass NULL for the matrix. */ -inst_code i1d3_col_cor_mat( +static inst_code i1d3_col_cor_mat( inst *pp, +disptech dtech, /* Use disptech_unknown if not known */ \ +int cbid, /* Calibration display type base ID, 1 if unknown */\ double mtx[3][3] ) { i1d3 *p = (i1d3 *)pp; @@ -2723,9 +2822,18 @@ double mtx[3][3] if (!p->inited) return inst_no_init; + if ((ev = set_base_disp_type(p, cbid)) != inst_ok) + return ev; + if ((ev = i1d3_set_matcal(p, mtx)) != inst_ok) return ev; + p->dtech = dtech; + p->cbid = 0; + + /* Effective refresh mode may change */ + update_refmode(p, disptech_get_id(dtech)->refr); + return i1d3_set_cal(p); } @@ -2733,8 +2841,9 @@ double mtx[3][3] /* instrumen calibration. */ /* This is only valid for colorimetric instruments. */ /* To set calibration back to default, pass NULL for sets. */ -inst_code i1d3_col_cal_spec_set( +static inst_code i1d3_col_cal_spec_set( inst *pp, +disptech dtech, xspect *sets, int no_sets ) { @@ -2748,6 +2857,9 @@ int no_sets if (!p->inited) return inst_no_init; + p->dtech = dtech; + p->cbid = 0; + if (sets == NULL || no_sets <= 0) { if ((ev = set_default_disp_type(p)) != inst_ok) { return ev; @@ -2756,8 +2868,10 @@ int no_sets if ((ev = i1d3_set_speccal(p, sets, no_sets)) != inst_ok) return ev; + p->ucbid = 0; /* We're using external samples */ ev = i1d3_set_cal(p); } + update_refmode(p, disptech_get_id(dtech)->refr); return ev; } @@ -2784,7 +2898,7 @@ static inst_code i1d3_get_n_a_cals(inst *pp, inst_cal_type *pn_cals, inst_cal_ty } /* Request an instrument calibration. */ -inst_code i1d3_calibrate( +static inst_code i1d3_calibrate( inst *pp, inst_cal_type *calt, /* Calibration type to do/remaining */ inst_cal_cond *calc, /* Current condition/desired condition */ @@ -2866,22 +2980,27 @@ char id[CALIDLEN] /* Condition identifier (ie. white reference ID) */ return inst_ok; } -/* Measure a display update delay. It is assumed that a */ -/* white to black change has been made to the displayed color, */ +/* Measure a display update delay. It is assumed that */ +/* white_stamp(init) has been called, and then a */ +/* black to white change has been made to the displayed color, */ /* and this will measure the time it took for the update to */ -/* be noticed by the instrument, up to 0.6 seconds. */ +/* be noticed by the instrument, up to 2.0 seconds. */ +/* (It is assumed that white_change() will be called at the time the patch */ +/* changes color.) */ /* inst_misread will be returned on failure to find a transition to black. */ -#define NDSAMPS 200 +#define NDSAMPS 400 #define DINTT 0.005 /* Too short hits blanking */ -#define NDMXTIME 1.0 /* Maximum time to take */ +#define NDMXTIME 2.0 /* Maximum time to take */ -inst_code i1d3_meas_delay( +static inst_code i1d3_meas_delay( inst *pp, -int *msecdelay) { /* Return the number of msec */ +int *pdispmsec, /* Return display update delay in msec */ +int *pinstmsec) { /* Return instrument reaction time in msec */ i1d3 *p = (i1d3 *)pp; inst_code ev; int i, j, k; - double sutime, putime, cutime, eutime; + double putime, cutime; + int mtachdel; struct { double sec; double rgb[3]; @@ -2890,9 +3009,19 @@ int *msecdelay) { /* Return the number of msec */ int ndsamps; double inttime = DINTT; double stot, etot, del, thr; - double etime; + double stime, etime; int isdeb; int isth; + int dispmsec, instmsec; + + if (pinstmsec != NULL) + *pinstmsec = 0; + + if (!p->gotcoms) + return inst_no_coms; + + if (!p->inited) + return inst_no_init; if (usec_time() < 0.0) { a1loge(p->log, inst_internal_error, "i1d3_meas_delay: No high resolution timers\n"); @@ -2906,8 +3035,7 @@ int *msecdelay) { /* Return the number of msec */ p->th_en = 0; /* Read the samples */ - sutime = usec_time(); - putime = (usec_time() - sutime) / 1000000.0; + putime = usec_time() / 1000000.0; for (i = 0; i < NDSAMPS; i++) { if ((ev = i1d3_freq_measure(p, &inttime, samp[i].rgb)) != inst_ok) { a1logd(p->log, 1, "i1d3_meas_delay: measurement failed\n"); @@ -2915,7 +3043,7 @@ int *msecdelay) { /* Return the number of msec */ p->th_en = isth; return ev; } - cutime = (usec_time() - sutime) / 1000000.0; + cutime = usec_time() / 1000000.0; samp[i].sec = 0.5 * (putime + cutime); /* Mean of before and after stamp */ putime = cutime; samp[i].tot = samp[i].rgb[0] + samp[i].rgb[1] + samp[i].rgb[2]; @@ -2932,36 +3060,23 @@ int *msecdelay) { /* Return the number of msec */ a1logd(p->log, 1, "i1d3_meas_delay: No measurement samples returned in time\n"); return inst_internal_error; } - -#ifdef PLOT_UPDELAY - /* Plot the raw sensor values */ - { - double xx[NDSAMPS]; - double y1[NDSAMPS]; - double y2[NDSAMPS]; - double y3[NDSAMPS]; - double y4[NDSAMPS]; - for (i = 0; i < ndsamps; i++) { - xx[i] = samp[i].sec; - y1[i] = samp[i].rgb[0]; - y2[i] = samp[i].rgb[1]; - y3[i] = samp[i].rgb[2]; - y4[i] = samp[i].tot; - //printf("%d: %f -> %f\n",i,samp[i].sec, samp[i].tot); - } - printf("Display update delay measure sensor values and time (sec)\n"); - do_plot6(xx, y1, y2, y3, y4, NULL, NULL, ndsamps); + if (p->whitestamp < 0.0) { + a1logd(p->log, 1, "i1d3_meas_delay: White transition wasn't timestamped\n"); + return inst_internal_error; } -#endif + + /* Set the times to be white transition relative */ + for (i = 0; i < ndsamps; i++) + samp[i].sec -= p->whitestamp / 1000000.0; /* Over the first 100msec, locate the maximum value */ - etime = samp[ndsamps-1].sec; + stime = samp[0].sec; stot = -1e9; for (i = 0; i < ndsamps; i++) { if (samp[i].tot > stot) stot = samp[i].tot; - if (samp[i].sec > 0.1) + if ((samp[i].sec - stime) > 0.1) break; } @@ -2975,33 +3090,72 @@ int *msecdelay) { /* Return the number of msec */ break; } - del = stot - etot; - thr = etot + 0.2 * del; /* 20% of transition threshold */ + del = etot - stot; + thr = stot + 0.2 * del; /* 20% of transition threshold */ #ifdef PLOT_UPDELAY a1logd(p->log, 0, "i1d3_meas_delay: start tot %f end tot %f del %f, thr %f\n", stot, etot, del, thr); #endif +#ifdef PLOT_UPDELAY + /* Plot the raw sensor values */ + { + double xx[NDSAMPS]; + double y1[NDSAMPS]; + double y2[NDSAMPS]; + double y3[NDSAMPS]; + double y4[NDSAMPS]; + + for (i = 0; i < ndsamps; i++) { + xx[i] = samp[i].sec; + y1[i] = samp[i].rgb[0]; + y2[i] = samp[i].rgb[1]; + y3[i] = samp[i].rgb[2]; + y4[i] = samp[i].tot; + //printf("%d: %f -> %f\n",i,samp[i].sec, samp[i].tot); + } + printf("Display update delay measure sensor values and time (sec)\n"); + do_plot6(xx, y1, y2, y3, y4, NULL, NULL, ndsamps); + } +#endif + /* Check that there has been a transition */ if (del < 10.0) { - a1logd(p->log, 1, "i1d3_meas_delay: can't detect change from white to black\n"); + a1logd(p->log, 1, "i1d3_meas_delay: can't detect change from black to white\n"); return inst_misread; } - /* Working from the end, locate the time at which the level was above the threshold */ - for (i = ndsamps-1; i >= 0; i--) { + /* Working from the start, locate the time at which the level was above the threshold */ + for (i = 0; i < (ndsamps-1); i++) { if (samp[i].tot > thr) break; } - if (i < 0) /* Assume the update was so fast that we missed it */ - i = 0; a1logd(p->log, 2, "i1d3_meas_delay: stoped at sample %d time %f\n",i,samp[i].sec); - *msecdelay = (int)(samp[i].sec * 1000.0 + 0.5); + /* Compute overall delay */ + dispmsec = (int)(samp[i].sec * 1000.0 + 0.5); + instmsec = 0; + +#ifdef PLOT_UPDELAY + a1logd(p->log, 0, "i1d3_meas_delay: disp %d, inst %d msec\n",dispmsec,instmsec); +#else + a1logd(p->log, 2, "i1d3_meas_delay: disp %d, inst %d msec\n",dispmsec,instmsec); +#endif + + if (dispmsec < 0) /* This can happen if the patch generator delays it's return */ + dispmsec = 0; + + if (pdispmsec != NULL) + *pdispmsec = dispmsec; + + if (pinstmsec != NULL) + *pinstmsec = instmsec; #ifdef PLOT_UPDELAY - a1logd(p->log, 0, "i1d3_meas_delay: returning %d msec\n",*msecdelay); + a1logd(p->log, 0, "i1d3_meas_delay: returning %d & %d msec\n",dispmsec,instmsec); +#else + a1logd(p->log, 2, "i1d3_meas_delay: returning %d & %d msec\n",dispmsec,instmsec); #endif return inst_ok; @@ -3010,6 +3164,23 @@ int *msecdelay) { /* Return the number of msec */ #undef DINTT #undef NDMXTIME +/* Timestamp the white patch change during meas_delay() */ +/* Initialise the whitestap to invalid if init nz */ +static inst_code i1d3_white_change( +inst *pp, int init) { + i1d3 *p = (i1d3 *)pp; + + if (init) + p->whitestamp = -1.0; + else { + if ((p->whitestamp = usec_time()) < 0.0) { + a1loge(p->log, inst_internal_error, "i1d3_wite_change: No high resolution timers\n"); + return inst_internal_error; + } + } + return inst_ok; +} + /* Return the last calibrated refresh rate in Hz. Returns: */ static inst_code i1d3_get_refr_rate(inst *pp, double *ref_rate @@ -3149,6 +3320,9 @@ i1d3_interp_code(inst *pp, int ec) { case I1D3_OK: return inst_ok; + + case I1D3_INTERNAL_ERROR: + return inst_internal_error | ec; case I1D3_BAD_MEM_ADDRESS: case I1D3_BAD_MEM_LENGTH: @@ -3242,7 +3416,7 @@ i1d3_del(inst *pp) { } /* Return the instrument capabilities */ -void i1d3_capabilities(inst *pp, +static void i1d3_capabilities(inst *pp, inst_mode *pcap1, inst2_capability *pcap2, inst3_capability *pcap3) { @@ -3255,6 +3429,7 @@ inst3_capability *pcap3) { | inst_mode_emis_ambient | inst_mode_emis_refresh_ovd /* (allow override ccmx & ccss mode) */ | inst_mode_emis_norefresh_ovd + | inst_mode_emis_nonadaptive | inst_mode_colorimeter ; @@ -3284,6 +3459,7 @@ inst3_capability *pcap3) { } /* Return current or given configuration available measurement modes. */ +/* NOTE that conf_ix values shoudn't be changed, as it is used as a persistent key */ static inst_code i1d3_meas_config( inst *pp, inst_mode *mmodes, @@ -3334,7 +3510,7 @@ int *conf_ix } /* Check device measurement mode */ -inst_code i1d3_check_mode(inst *pp, inst_mode m) { +static inst_code i1d3_check_mode(inst *pp, inst_mode m) { i1d3 *p = (i1d3 *)pp; inst_mode cap; @@ -3360,7 +3536,7 @@ inst_code i1d3_check_mode(inst *pp, inst_mode m) { } /* Set device measurement mode */ -inst_code i1d3_set_mode(inst *pp, inst_mode m) { +static inst_code i1d3_set_mode(inst *pp, inst_mode m) { i1d3 *p = (i1d3 *)pp; int refrmode; inst_code ev; @@ -3371,39 +3547,19 @@ inst_code i1d3_set_mode(inst *pp, inst_mode m) { p->mode = m; /* Effective refresh mode may change */ - refrmode = p->refrmode; - if ( IMODETST(p->mode, inst_mode_emis_norefresh_ovd)) { /* Must test this first! */ - refrmode = 0; - } else if (IMODETST(p->mode, inst_mode_emis_refresh_ovd)) { - refrmode = 1; - } - - if (p->refrmode != refrmode) { - p->rrset = 0; /* This is a hint we may have swapped displays */ - p->refrvalid = 0; - } - p->refrmode = refrmode; - - /* default before any refresh rate calibration */ - if (p->refrmode) { - p->inttime = 2.0 * p->dinttime; /* Double default integration time */ - } else { - p->inttime = p->dinttime; /* Normal integration time */ - } - if (p->omininttime != 0.0) - p->inttime = p->omininttime; /* Override */ - p->mininttime = p->inttime; /* Current value */ + update_refmode(p, p->refrmode); return inst_ok; } -inst_disptypesel i1d3_disptypesel[3] = { +static inst_disptypesel i1d3_disptypesel[3] = { { inst_dtflags_default, 1, "nl", "Non-Refresh display", 0, + disptech_lcd, 0 }, { @@ -3412,6 +3568,7 @@ inst_disptypesel i1d3_disptypesel[3] = { "rc", /* sel */ "Refresh display", /* desc */ 1, /* refr */ + disptech_crt, /* disptype */ 1 /* ix */ }, { @@ -3420,6 +3577,7 @@ inst_disptypesel i1d3_disptypesel[3] = { "", "", 0, + disptech_none, 0 } }; @@ -3469,44 +3627,62 @@ static inst_code set_disp_type(i1d3 *p, inst_disptypesel *dentry) { int refrmode; p->icx = dentry->ix; + p->dtech = dentry->dtech; p->cbid = dentry->cbid; - refrmode = dentry->refr; - if ( IMODETST(p->mode, inst_mode_emis_norefresh_ovd)) { /* Must test this first! */ - refrmode = 0; - } else if (IMODETST(p->mode, inst_mode_emis_refresh_ovd)) { - refrmode = 1; - } - - if (p->refrmode != refrmode) - p->rrset = 0; /* This is a hint we may have swapped displays */ - p->refrmode = refrmode; - - if (p->refrmode) { - p->inttime = 2.0 * p->dinttime; /* Double integration time */ - } else { - p->inttime = p->dinttime; /* Normal integration time */ - } - if (p->omininttime != 0.0) - p->inttime = p->omininttime; /* Override */ - p->mininttime = p->inttime; /* Current value */ + update_refmode(p, dentry->refr); if (dentry->flags & inst_dtflags_ccss) { /* Spectral sample */ if ((ev = i1d3_set_speccal(p, dentry->sets, dentry->no_sets)) != inst_ok) return ev; + p->ucbid = dentry->cbid; /* This is underying base if dentry is base selection */ - } else { /* Matrix */ + } else { - if (dentry->flags & inst_dtflags_ccmx) { + if (dentry->flags & inst_dtflags_ccmx) { /* Matrix */ + if ((ev = set_base_disp_type(p, dentry->cc_cbid)) != inst_ok) + return ev; if ((ev = i1d3_set_matcal(p, dentry->mat)) != inst_ok) return ev; - } else { + p->cbid = 0; /* Matrix will be an override of cbid set in i1d3_set_cal() */ + + } else { /* Native */ if ((ev = i1d3_set_matcal(p, NULL)) != inst_ok) /* Noop */ return ev; + p->ucbid = dentry->cbid; /* This is underying base if dentry is base selection */ } } - return i1d3_set_cal(p); + return i1d3_set_cal(p); /* Make it happen */ +} + +/* Set the display type */ +static inst_code i1d3_set_disptype(inst *pp, int ix) { + i1d3 *p = (i1d3 *)pp; + inst_code ev; + inst_disptypesel *dentry; + + if (!p->gotcoms) + return inst_no_coms; + if (!p->inited) + return inst_no_init; + + if (p->dtlist == NULL) { + if ((ev = inst_creat_disptype_list(pp, &p->ndtlist, &p->dtlist, + i1d3_disptypesel, 1 /* doccss*/, 1 /* doccmx */)) != inst_ok) + return ev; + } + + if (ix < 0 || ix >= p->ndtlist) + return inst_unsupported; + + dentry = &p->dtlist[ix]; + + if ((ev = set_disp_type(p, dentry)) != inst_ok) { + return ev; + } + + return inst_ok; } /* Setup the default display type */ @@ -3535,35 +3711,55 @@ static inst_code set_default_disp_type(i1d3 *p) { return inst_ok; } -/* Set the display type */ -static inst_code i1d3_set_disptype(inst *pp, int ix) { - i1d3 *p = (i1d3 *)pp; +/* Setup the display type to the given base type */ +static inst_code set_base_disp_type(i1d3 *p, int cbid) { inst_code ev; - inst_disptypesel *dentry; - - if (!p->gotcoms) - return inst_no_coms; - if (!p->inited) - return inst_no_init; + int i; + if (cbid == 0) { + a1loge(p->log, 1, "i1d3 set_base_disp_type: can't set base display type of 0\n"); + return inst_wrong_setup; + } if (p->dtlist == NULL) { - if ((ev = inst_creat_disptype_list(pp, &p->ndtlist, &p->dtlist, - i1d3_disptypesel, 1 /* doccss*/, 1 /* doccmx */)) != inst_ok) + if ((ev = inst_creat_disptype_list((inst *)p, &p->ndtlist, &p->dtlist, + i1d3_disptypesel, 0 /* doccss*/, 1 /* doccmx */)) != inst_ok) return ev; } - if (ix < 0 || ix >= p->ndtlist) - return inst_unsupported; - - dentry = &p->dtlist[ix]; - - if ((ev = set_disp_type(p, dentry)) != inst_ok) { + for (i = 0; !(p->dtlist[i].flags & inst_dtflags_end); i++) { + if (!(p->dtlist[i].flags & inst_dtflags_ccmx) /* Prevent infinite recursion */ + && p->dtlist[i].cbid == cbid) + break; + } + if (p->dtlist[i].flags & inst_dtflags_end) { + a1loge(p->log, 1, "set_base_disp_type: failed to find cbid %d!\n",cbid); + return inst_wrong_setup; + } + if ((ev = set_disp_type(p, &p->dtlist[i])) != inst_ok) { return ev; } return inst_ok; } +/* Get the disptech and other corresponding info for the current */ +/* selected display type. Returns disptype_unknown by default. */ +/* Because refrmode can be overridden, it may not match the refrmode */ +/* of the dtech. (Pointers may be NULL if not needed) */ +static inst_code i1d3_get_disptechi( +inst *pp, +disptech *dtech, +int *refrmode, +int *cbid) { + i1d3 *p = (i1d3 *)pp; + if (dtech != NULL) + *dtech = p->dtech; + if (refrmode != NULL) + *refrmode = p->refrmode; + if (cbid != NULL) + *cbid = p->cbid; + return inst_ok; +} /* * set or reset an optional mode @@ -3589,24 +3785,6 @@ i1d3_get_set_opt(inst *pp, inst_opt_type m, ...) if (!p->inited) return inst_no_init; - /* Get the display type information */ - if (m == inst_opt_get_dtinfo) { - va_list args; - int *refrmode, *cbid; - - va_start(args, m); - refrmode = va_arg(args, int *); - cbid = va_arg(args, int *); - va_end(args); - - if (refrmode != NULL) - *refrmode = p->refrmode; - if (cbid != NULL) - *cbid = p->cbid; - - return inst_ok; - } - /* Get the current minimum integration time */ if (m == inst_opt_get_min_int_time) { va_list args; @@ -3689,7 +3867,7 @@ i1d3_get_set_opt(inst *pp, inst_opt_type m, ...) a1logd(p->log, 4, "inst_opt_set_ccss_obs\n"); - return i1d3_set_cal(p); /* Recompute calibration */ + return i1d3_set_cal(p); /* Recompute calibration if spectral sample */ } /* Operate the LEDS */ @@ -3814,6 +3992,7 @@ extern i1d3 *new_i1d3(icoms *icom, instType itype) { p->set_mode = i1d3_set_mode; p->get_disptypesel = i1d3_get_disptypesel; p->set_disptype = i1d3_set_disptype; + p->get_disptechi = i1d3_get_disptechi; p->get_set_opt = i1d3_get_set_opt; p->read_sample = i1d3_read_sample; p->read_refrate = i1d3_read_refrate; @@ -3822,6 +4001,7 @@ extern i1d3 *new_i1d3(icoms *icom, instType itype) { p->get_n_a_cals = i1d3_get_n_a_cals; p->calibrate = i1d3_calibrate; p->meas_delay = i1d3_meas_delay; + p->white_change = i1d3_white_change; p->get_refr_rate = i1d3_get_refr_rate; p->set_refr_rate = i1d3_set_refr_rate; p->interp_error = i1d3_interp_error; @@ -3833,6 +4013,7 @@ extern i1d3 *new_i1d3(icoms *icom, instType itype) { amutex_init(p->lock); icmSetUnity3x3(p->ccmat); + p->dtech = disptech_unknown; return p; } diff --git a/spectro/i1d3.h b/spectro/i1d3.h index 6d0eb85..47f3858 100644 --- a/spectro/i1d3.h +++ b/spectro/i1d3.h @@ -81,12 +81,13 @@ typedef enum { i1d3_oem = 2, /* OEM */ i1d3_nec_ssp = 3, /* NEC SpectraSensor Pro */ i1d3_quato_sh3 = 4, /* Quato Silver Haze 3 */ - i1d3_hp_dreamc = 5 /* HP DreameColor */ + i1d3_hp_dreamc = 5, /* HP DreameColor */ + i1d3_sc_c6 = 6 /* SpectraCal C6 */ } i1d3_dtype; /* Measurement mode */ typedef enum { - i1d3_adaptive = 0, /* Frequency over fixed period then adaptive period measurement */ + i1d3_adaptive = 0, /* Frequency over fixed period then adaptive period measurement (def) */ i1d3_frequency = 1, /* Frequency over fixed period measurement */ i1d3_period = 2 /* Adaptive period measurement */ } i1d3_mmode; @@ -126,7 +127,9 @@ struct _i1d3 { inst_disptypesel *dtlist; /* Display Type list */ int ndtlist; /* Number of valid dtlist entries */ int icx; /* Internal calibration matrix index, 11 = Raw */ - int cbid; /* calibration base ID, 0 if not a base */ + disptech dtech; /* Display technology enum */ + int cbid; /* current calibration base ID, 0 if not a base */ + int ucbid; /* Underlying base ID if being used for matrix, 0 othewise */ int refrmode; /* nz if in refresh display mode/double int. time */ icxObserverType obType; /* ccss observer to use */ xspect custObserver[3]; /* Custom ccss observer to use */ @@ -158,6 +161,8 @@ struct _i1d3 { volatile int th_termed; /* nz when thread terminated */ int dpos; /* Diffuser position, 0 = display, 1 = ambient */ + volatile double whitestamp; /* meas_delay() white timestamp */ + }; typedef struct _i1d3 i1d3; /* Constructor */ diff --git a/spectro/i1disp.c b/spectro/i1disp.c index cb5472b..e9a375e 100644 --- a/spectro/i1disp.c +++ b/spectro/i1disp.c @@ -53,7 +53,6 @@ #include "icoms.h" #include "i1disp.h" -static void dump_bytes(a1log *log, char *pfx, unsigned char *buf, int base, int len); static inst_code i1disp_interp_code(inst *pp, int ec); static inst_code i1disp_do_fcal_setit(i1disp *p); static inst_code i1disp_check_unlock(i1disp *p); @@ -108,6 +107,7 @@ typedef enum { i1d_m_rgb_edge_2 = 0x16, /* -:W Measure RGB Edge (16 bit) */ + /* Different meanings for different devices ? */ i1d_set_pll_p = 0x11, /* SS:- Set PLL period */ i1d_get_pll_p = 0x12, /* -:W Get PLL period */ @@ -118,9 +118,11 @@ typedef enum { i1d_wrxreg = 0x13, /* SB:- Write an extra register value */ i1d_rdxreg = 0x14, /* S:B Read an extra register value */ - - i1d_rdexreg = 0x19 /* BS:B Smile: Read an extended register value */ /* The address range overlapps i1d_rdreg */ + /* Smile */ +// i1d_xxxxxxx = 0x18, /* XXX:X Unknown */ + i1d_rdexreg = 0x19 /* BS:BBBB Read an extended register value */ + } i1DispCC; /* Do a command/response exchange with the i1disp. */ @@ -1324,6 +1326,9 @@ i1disp_read_refrate( if (p->dtype != 1) return inst_unsupported; + if (ref_rate != NULL) + *ref_rate = 0.0; + /* Average a few refresh period readings */ for (i = 0; i < p->nmeasprds; i++) { int mp; @@ -1406,6 +1411,7 @@ i1disp_check_unlock( { { 'O','b','i','w' }, &p->hpdream }, /* "Obiw" HP DreamColor */ { { 'C','M','X','2' }, &p->calmanx2 }, /* "CMX2" Calman X2 */ { { 0x24,0xb6,0xb5,0x13 }, NULL }, /* ColorMunki Smile */ + { { 'S','p','C','3' }, NULL }, /* SpectraCal C3 (Based on Smile) */ { { 'R','G','B','c' }, NULL }, /* */ { { 'C','E','C','5' }, NULL }, /* */ { { 'C','M','C','5' }, NULL }, /* */ @@ -1491,11 +1497,13 @@ i1disp_check_unlock( } else if (ver >= 6.0 && ver <= 6.29 && vv == 'L') { p->dtype = 1; /* Eye-One Display 2 */ - } else if (ver >= 6.0 && ver <= 6.29 && vv == 'M') { + } else if (ver >= 6.0 && ver <= 6.29 + && (vv = 0xff || vv == 'M')) { // Faulty Smile's have vv = 0xff /* ColorMunki Create ? */ /* ColorMunki Smile */ if (p->dtype == 0) /* Not sure if this is set by Create */ p->dtype = 1; + } else { /* Reject any version or model we don't know about */ a1logv(p->log, 1, "Version string = %3.1f\nID character = 0x%02x = '%c'\n",ver,vv,vv); @@ -1785,41 +1793,42 @@ i1disp_init_inst(inst *pp) { if ((ev = i1disp_check_unlock(p)) != inst_ok) return ev; - /* Read all the registers and store their contents */ - if ((ev = i1disp_read_all_regs(p)) != inst_ok) - return ev; + if (p->log->debug >= 3) { -#ifdef NEVER - /* Dump all the register space */ - if (p->dtype < 2) { - unsigned char buf[0x200]; - int i, len; - - len = 128; - if (p->dtype != 0) - len = 160; - - for (i = 0; i < len; i++) { - int v; - if ((ev = i1disp_rdreg_byte(p, &v, i)) != inst_ok) { - return ev; + /* Dump all the register space */ + if (p->dtype < 2) { + unsigned char buf[0x200]; + int i, len; + + len = 128; + if (p->dtype != 0) + len = 160; + + for (i = 0; i < len; i++) { + int v; + if ((ev = i1disp_rdreg_byte(p, &v, i)) != inst_ok) { + return ev; + } + buf[i] = v; } - buf[i] = v; - } - dump_bytes(p->log, "dump:", buf, 0, len); - - /* Dump ColorMunki Smile extended range */ - /* Main difference is Ascii serial number + other minor unknown */ - } else { - unsigned char buf[0x200]; - + adump_bytes(p->log, "dump:", buf, 0, len); - if ((ev = i1disp_rdexreg_bytes(p, buf, 0, 0x200)) != inst_ok) { - return ev; + /* Dump ColorMunki Smile extended range */ + /* Main difference is Ascii serial number + other minor unknown */ + } else { + unsigned char buf[0x200]; + + + if ((ev = i1disp_rdexreg_bytes(p, buf, 0, 0x200)) != inst_ok) { + return ev; + } + adump_bytes(p->log, "dump:", buf, 0, 0x200); } - dump_bytes(p->log, "dump:", buf, 0, 0x200); } -#endif /* NEVER */ + + /* Read all the registers and store their contents */ + if ((ev = i1disp_read_all_regs(p)) != inst_ok) + return ev; if ((ev = i1disp_compute_factors(p)) != inst_ok) return ev; @@ -1884,9 +1893,14 @@ instClamping clamp) { /* NZ if clamp XYZ/Lab to be +ve */ return rv; /* Abort */ } + /* Read the XYZ value */ - if ((rv = i1disp_take_XYZ_measurement(p, val->XYZ)) != inst_ok) + rv = i1disp_take_XYZ_measurement(p, val->XYZ); + + if (rv != inst_ok) return rv; + + /* This may not change anything since instrument may clamp */ if (clamp) icmClamp3(val->XYZ, val->XYZ); @@ -1905,28 +1919,44 @@ instClamping clamp) { /* NZ if clamp XYZ/Lab to be +ve */ return rv; } +static inst_code set_base_disp_type(i1disp *p, int cbid); + /* Insert a colorimetric correction matrix in the instrument XYZ readings */ /* This is only valid for colorimetric instruments. */ /* To remove the matrix, pass NULL for the filter filename */ inst_code i1disp_col_cor_mat( inst *pp, +disptech dtech, /* Use disptech_unknown if not known */ \ +int cbid, /* Calibration display type base ID, 1 if unknown */\ double mtx[3][3] ) { i1disp *p = (i1disp *)pp; + inst_code ev; if (!p->gotcoms) return inst_no_coms; if (!p->inited) return inst_no_init; - if (mtx == NULL) { + if ((ev = set_base_disp_type(p, cbid)) != inst_ok) + return ev; + if (mtx == NULL) icmSetUnity3x3(p->ccmat); - } else { - if (p->cbid == 0) { - a1loge(p->log, 1, "spyd2: can't set col_cor_mat over non-base display type\n"); - return inst_wrong_setup; - } + else icmCpy3x3(p->ccmat, mtx); + p->dtech = dtech; + p->refrmode = disptech_get_id(dtech)->refr; + p->cbid = 0; /* Can't be base type now */ + + if (p->log->debug >= 4) { + a1logd(p->log,4,"ccmat = %f %f %f\n", + p->ccmat[0][0], p->ccmat[0][1], p->ccmat[0][2]); + a1logd(p->log,4," %f %f %f\n", + p->ccmat[1][0], p->ccmat[1][1], p->ccmat[1][2]); + a1logd(p->log,4," %f %f %f\n\n", + p->ccmat[2][0], p->ccmat[2][1], p->ccmat[2][2]); + a1logd(p->log,4,"ucbid = %d, cbid = %d\n",p->ucbid, p->cbid); + a1logd(p->log,4,"\n"); } return inst_ok; @@ -2059,6 +2089,7 @@ double *ref_rate i1disp *p = (i1disp *)pp; if (p->refrvalid) { *ref_rate = p->refrate; + return inst_ok; } else if (p->rrset) { *ref_rate = 0.0; @@ -2213,7 +2244,7 @@ i1disp_del(inst *pp) { } /* Return the instrument capabilities */ -void i1disp_capabilities(inst *pp, +static void i1disp_capabilities(inst *pp, inst_mode *pcap1, inst2_capability *pcap2, inst3_capability *pcap3) { @@ -2254,7 +2285,7 @@ inst3_capability *pcap3) { } /* Check device measurement mode */ -inst_code i1disp_check_mode(inst *pp, inst_mode m) { +static inst_code i1disp_check_mode(inst *pp, inst_mode m) { i1disp *p = (i1disp *)pp; inst_mode cap; @@ -2279,7 +2310,7 @@ inst_code i1disp_check_mode(inst *pp, inst_mode m) { } /* Set device measurement mode */ -inst_code i1disp_set_mode(inst *pp, inst_mode m) { +static inst_code i1disp_set_mode(inst *pp, inst_mode m) { i1disp *p = (i1disp *)pp; inst_code ev; @@ -2296,21 +2327,23 @@ inst_code i1disp_set_mode(inst *pp, inst_mode m) { return inst_ok; } -inst_disptypesel i1disp_disptypesel[3] = { +static inst_disptypesel i1disp_disptypesel[3] = { { inst_dtflags_default, 1, "l", "LCD display", 0, + disptech_lcd, 0 }, { inst_dtflags_none, /* flags */ - 2, /* cbix */ + 2, /* cbid */ "c", /* sel */ "CRT display", /* desc */ 1, /* refr */ + disptech_crt, /* disptype */ 1 /* ix */ }, { @@ -2319,18 +2352,20 @@ inst_disptypesel i1disp_disptypesel[3] = { "", "", 0, + disptech_none, 0 } }; -inst_disptypesel smile_disptypesel[3] = { +static inst_disptypesel smile_disptypesel[3] = { { inst_dtflags_default, /* flags */ - 1, /* cbix */ + 1, /* cbid */ "fl", /* sel */ "LCD with CCFL backlight", /* desc */ 0, /* refr */ + disptech_lcd_ccfl, /* disptype */ 1 /* ix */ }, { @@ -2339,6 +2374,7 @@ inst_disptypesel smile_disptypesel[3] = { "e", "LCD with White LED backlight", 0, + disptech_lcd_wled, 0 }, { @@ -2347,6 +2383,7 @@ inst_disptypesel smile_disptypesel[3] = { "", "", 0, + disptech_none, 0 } }; @@ -2371,7 +2408,7 @@ int recreate /* nz to re-check for new ccmx & ccss files */ i1disp *p = (i1disp *)pp; inst_code rv = inst_ok; - /* Create/Re-create a current list of abailable display types */ + /* Create/Re-create a current list of available display types */ if (p->dtlist == NULL || recreate) { if ((rv = inst_creat_disptype_list(pp, &p->ndtlist, &p->dtlist, p->_dtlist, 0 /* doccss*/, 1 /* doccmx */)) != inst_ok) @@ -2391,8 +2428,24 @@ int recreate /* nz to re-check for new ccmx & ccss files */ static inst_code set_disp_type(i1disp *p, inst_disptypesel *dentry) { int refrmode; - p->icx = dentry->ix; - p->cbid = dentry->cbid; + if (dentry->flags & inst_dtflags_ccmx) { + inst_code ev; + if ((ev = set_base_disp_type(p, dentry->cc_cbid)) != inst_ok) + return ev; + icmCpy3x3(p->ccmat, dentry->mat); + p->dtech = dentry->dtech; + p->cbid = 0; /* Can't be a base type now */ + + } else { /* Native */ + + p->icx = dentry->ix; + p->dtech = dentry->dtech; + p->cbid = dentry->cbid; + p->ucbid = dentry->cbid; /* This is underying base if dentry is base selection */ + icmSetUnity3x3(p->ccmat); + } + + /* Implement any refresh mode change */ refrmode = dentry->refr; if ( IMODETST(p->mode, inst_mode_emis_norefresh_ovd)) { /* Must test this first! */ @@ -2407,15 +2460,50 @@ static inst_code set_disp_type(i1disp *p, inst_disptypesel *dentry) { } p->refrmode = refrmode; - if (dentry->flags & inst_dtflags_ccmx) { - icmCpy3x3(p->ccmat, dentry->mat); - } else { - icmSetUnity3x3(p->ccmat); + if (p->log->debug >= 4) { + a1logd(p->log,4,"ccmat = %f %f %f\n", + p->ccmat[0][0], p->ccmat[0][1], p->ccmat[0][2]); + a1logd(p->log,4," %f %f %f\n", + p->ccmat[1][0], p->ccmat[1][1], p->ccmat[1][2]); + a1logd(p->log,4," %f %f %f\n\n", + p->ccmat[2][0], p->ccmat[2][1], p->ccmat[2][2]); + a1logd(p->log,4,"ucbid = %d, cbid = %d\n",p->ucbid, p->cbid); + a1logd(p->log,4,"\n"); + } + + return inst_ok; +} + +/* Set the display type */ +static inst_code i1disp_set_disptype(inst *pp, int ix) { + i1disp *p = (i1disp *)pp; + inst_code ev; + inst_disptypesel *dentry; + + if (!p->gotcoms) + return inst_no_coms; + if (!p->inited) + return inst_no_init; + + if (p->dtlist == NULL) { + if ((ev = inst_creat_disptype_list(pp, &p->ndtlist, &p->dtlist, + p->_dtlist, 0 /* doccss*/, 1 /* doccmx */)) != inst_ok) + return ev; + } + + if (ix < 0 || ix >= p->ndtlist) + return inst_unsupported; + + dentry = &p->dtlist[ix]; + + if ((ev = set_disp_type(p, dentry)) != inst_ok) { + return ev; } return inst_ok; } +/* Get the disptech corresponding to the current */ /* Setup the default display type */ static inst_code set_default_disp_type(i1disp *p) { inst_code ev; @@ -2442,35 +2530,55 @@ static inst_code set_default_disp_type(i1disp *p) { return inst_ok; } -/* Set the display type */ -static inst_code i1disp_set_disptype(inst *pp, int ix) { - i1disp *p = (i1disp *)pp; +/* Setup the display type to the given base type */ +static inst_code set_base_disp_type(i1disp *p, int cbid) { inst_code ev; - inst_disptypesel *dentry; - - if (!p->gotcoms) - return inst_no_coms; - if (!p->inited) - return inst_no_init; + int i; + if (cbid == 0) { + a1loge(p->log, 1, "i1disp set_base_disp_type: can't set base display type of 0\n"); + return inst_wrong_setup; + } if (p->dtlist == NULL) { - if ((ev = inst_creat_disptype_list(pp, &p->ndtlist, &p->dtlist, - p->_dtlist, 1 /* doccss*/, 1 /* doccmx */)) != inst_ok) + if ((ev = inst_creat_disptype_list((inst *)p, &p->ndtlist, &p->dtlist, + i1disp_disptypesel, 0 /* doccss*/, 1 /* doccmx */)) != inst_ok) return ev; } - if (ix < 0 || ix >= p->ndtlist) - return inst_unsupported; - - dentry = &p->dtlist[ix]; - - if ((ev = set_disp_type(p, dentry)) != inst_ok) { + for (i = 0; !(p->dtlist[i].flags & inst_dtflags_end); i++) { + if (!(p->dtlist[i].flags & inst_dtflags_ccmx) /* Prevent infinite recursion */ + && p->dtlist[i].cbid == cbid) + break; + } + if (p->dtlist[i].flags & inst_dtflags_end) { + a1loge(p->log, 1, "set_base_disp_type: failed to find cbid %d!\n",cbid); + return inst_wrong_setup; + } + if ((ev = set_disp_type(p, &p->dtlist[i])) != inst_ok) { return ev; } return inst_ok; } +/* Get the disptech and other corresponding info for the current */ +/* selected display type. Returns disptype_unknown by default. */ +/* Because refrmode can be overridden, it may not match the refrmode */ +/* of the dtech. (Pointers may be NULL if not needed) */ +static inst_code i1disp_get_disptechi( +inst *pp, +disptech *dtech, +int *refrmode, +int *cbid) { + i1disp *p = (i1disp *)pp; + if (dtech != NULL) + *dtech = p->dtech; + if (refrmode != NULL) + *refrmode = p->refrmode; + if (cbid != NULL) + *cbid = p->cbid; + return inst_ok; +} /* * set or reset an optional mode @@ -2484,24 +2592,6 @@ i1disp_get_set_opt(inst *pp, inst_opt_type m, ...) i1disp *p = (i1disp *)pp; inst_code ev; - /* Get the display type information */ - if (m == inst_opt_get_dtinfo) { - va_list args; - int *refrmode, *cbid; - - va_start(args, m); - refrmode = va_arg(args, int *); - cbid = va_arg(args, int *); - va_end(args); - - if (refrmode != NULL) - *refrmode = p->refrmode; - if (cbid != NULL) - *cbid = p->cbid; - - return inst_ok; - } - /* Record the trigger mode */ if (m == inst_opt_trig_prog || m == inst_opt_trig_user) { @@ -2527,6 +2617,7 @@ extern i1disp *new_i1disp(icoms *icom, instType itype) { p->capabilities = i1disp_capabilities; p->check_mode = i1disp_check_mode; p->set_mode = i1disp_set_mode; + p->get_disptechi = i1disp_get_disptechi; p->get_disptypesel = i1disp_get_disptypesel; p->set_disptype = i1disp_set_disptype; p->get_set_opt = i1disp_get_set_opt; @@ -2552,37 +2643,13 @@ extern i1disp *new_i1disp(icoms *icom, instType itype) { icmSetUnity3x3(p->ccmat); /* Set the colorimeter correction matrix to do nothing */ set_base_disptype_list(p); + p->dtech = disptech_unknown; return p; } /* ---------------------------------------------------------------- */ -// Print bytes as hex to debug log */ -static void dump_bytes(a1log *log, char *pfx, unsigned char *buf, int base, int len) { - int i, j, ii; - char oline[200] = { '\000' }, *bp = oline; - for (i = j = 0; i < len; i++) { - if ((i % 16) == 0) - bp += sprintf(bp,"%s%04x:",pfx,base+i); - bp += sprintf(bp," %02x",buf[i]); - if ((i+1) >= len || ((i+1) % 16) == 0) { - for (ii = i; ((ii+1) % 16) != 0; ii++) - bp += sprintf(bp," "); - bp += sprintf(bp," "); - for (; j <= i; j++) { - if (!(buf[j] & 0x80) && isprint(buf[j])) - bp += sprintf(bp,"%c",buf[j]); - else - bp += sprintf(bp,"."); - } - bp += sprintf(bp,"\n"); - a1logd(log,0,"%s",oline); - bp = oline; - } - } -} - diff --git a/spectro/i1disp.h b/spectro/i1disp.h index 893cad2..45e21db 100644 --- a/spectro/i1disp.h +++ b/spectro/i1disp.h @@ -140,7 +140,9 @@ struct _i1disp { inst_disptypesel *dtlist; /* Display Type list */ int ndtlist; /* Number of valid dtlist entries */ int icx; /* 0 = LCD, 1 = CRT/CCFL matrix */ - int cbid; /* calibration base ID, 0 if not a base */ + disptech dtech; /* Display technology enum */ + int cbid; /* current calibration base ID, 0 if not a base */ + int ucbid; /* Underlying base ID if being used for matrix, 0 othewise */ double ccmat[3][3]; /* Colorimeter correction matrix */ /* For dtype == 1 (Eye-One Display2) */ diff --git a/spectro/i1pro.c b/spectro/i1pro.c index 2cac518..cc2d7f2 100644 --- a/spectro/i1pro.c +++ b/spectro/i1pro.c @@ -35,6 +35,9 @@ /* TTBD + There may be a bug in HiRes emissive calibration - if you do an initial + cal. in normal, then switch to HiRes, no white plate cal is performed. + Is it using a previous cal result for this ? Should add extra filter compensation support. @@ -273,9 +276,13 @@ double *ref_rate) { if (!p->inited) return inst_no_init; + if (ref_rate != NULL) + *ref_rate = 0.0; + rv = i1pro_imp_meas_refrate(p, ref_rate); + return i1pro_interp_code(p, rv); } @@ -283,7 +290,8 @@ double *ref_rate) { static inst_code i1pro_meas_delay( inst *pp, -int *msecdelay) { +int *pdispmsec, /* Return display update delay in msec */ +int *pinstmsec) { /* Return instrument reaction time in msec */ i1pro *p = (i1pro *)pp; i1pro_code rv; @@ -292,11 +300,20 @@ int *msecdelay) { if (!p->inited) return inst_no_init; - rv = i1pro_imp_meas_delay(p, msecdelay); + rv = i1pro_imp_meas_delay(p, pdispmsec, pinstmsec); return i1pro_interp_code(p, rv); } +/* Timestamp the white patch change during meas_delay() */ +static inst_code i1pro_white_change( +inst *pp, +int init) { + i1pro *p = (i1pro *)pp; + + return i1pro_imp_white_change(p, init); +} + /* Return needed and available inst_cal_type's */ static inst_code i1pro_get_n_a_cals(inst *pp, inst_cal_type *pn_cals, inst_cal_type *pa_cals) { i1pro *p = (i1pro *)pp; @@ -307,7 +324,7 @@ static inst_code i1pro_get_n_a_cals(inst *pp, inst_cal_type *pn_cals, inst_cal_t } /* Request an instrument calibration. */ -inst_code i1pro_calibrate( +static inst_code i1pro_calibrate( inst *pp, inst_cal_type *calt, /* Calibration type to do/remaining */ inst_cal_cond *calc, /* Current condition/desired condition */ @@ -514,9 +531,11 @@ i1pro_interp_code(i1pro *p, i1pro_code ec) { switch (ec) { case I1PRO_OK: - return inst_ok; + case I1PRO_INTERNAL_ERROR: + return inst_internal_error | ec; + case I1PRO_COMS_FAIL: return inst_coms_fail | ec; @@ -601,7 +620,7 @@ i1pro_interp_code(i1pro *p, i1pro_code ec) { } /* Return the instrument capabilities */ -void i1pro_capabilities(inst *pp, +static void i1pro_capabilities(inst *pp, inst_mode *pcap1, inst2_capability *pcap2, inst3_capability *pcap3) { @@ -655,7 +674,7 @@ static i1p_mode i1pro_convert_mode(i1pro *p, inst_mode m) { } /* Check device measurement mode */ -inst_code i1pro_check_mode(inst *pp, inst_mode m) { +static inst_code i1pro_check_mode(inst *pp, inst_mode m) { i1pro *p = (i1pro *)pp; i1p_mode mmode = 0; /* Instrument measurement mode */ @@ -671,7 +690,7 @@ inst_code i1pro_check_mode(inst *pp, inst_mode m) { } /* Set device measurement mode */ -inst_code i1pro_set_mode(inst *pp, inst_mode m) { +static inst_code i1pro_set_mode(inst *pp, inst_mode m) { i1pro *p = (i1pro *)pp; i1p_mode mmode; /* Instrument measurement mode */ inst_code rv; @@ -703,7 +722,11 @@ i1pro_get_set_opt(inst *pp, inst_opt_type m, ...) { i1pro *p = (i1pro *)pp; - if (m == inst_opt_noinitcalib) { + if (m == inst_opt_initcalib) { /* default */ + i1pro_set_noinitcalib(p, 0, 0); + return inst_ok; + + } if (m == inst_opt_noinitcalib) { va_list args; int losecs = 0; @@ -714,10 +737,6 @@ i1pro_get_set_opt(inst *pp, inst_opt_type m, ...) i1pro_set_noinitcalib(p, 1, losecs); return inst_ok; - } else if (m == inst_opt_initcalib) { - i1pro_set_noinitcalib(p, 0, 0); - return inst_ok; - /* Record the trigger mode */ } else if (m == inst_opt_trig_prog || m == inst_opt_trig_user @@ -815,6 +834,7 @@ extern i1pro *new_i1pro(icoms *icom, instType itype) { p->get_n_a_cals = i1pro_get_n_a_cals; p->calibrate = i1pro_calibrate; p->meas_delay = i1pro_meas_delay; + p->white_change = i1pro_white_change; p->interp_error = i1pro_interp_error; p->del = i1pro_del; diff --git a/spectro/i1pro_imp.c b/spectro/i1pro_imp.c index b6d6747..9a888f9 100644 --- a/spectro/i1pro_imp.c +++ b/spectro/i1pro_imp.c @@ -102,10 +102,12 @@ #define ENABLE_NONLINCOR /* [Def] Enable non-linear correction */ #define ENABLE_BKDRIFTC /* [Def] Enable Emis. Black drift compensation using sheilded cell values */ #define HEURISTIC_BKDRIFTC /* [Def] Enable heusristic black drift correction */ + #define WLCALTOUT (24 * 60 * 60) /* [24 Hrs] Wavelength calibration timeout in seconds */ -#define DCALTOUT ( 60 * 60) /* [60 Minuites] Dark Calibration timeout in seconds */ +#define DCALTOUT ( 30 * 60) /* [30 Minutes] Dark Calibration timeout in seconds */ #define DCALTOUT2 ( 1 * 60 * 60) /* [1 Hr] i1pro2 Dark Calibration timeout in seconds */ #define WCALTOUT ( 1 * 60 * 60) /* [1 Hr] White Calibration timeout in seconds */ + #define MAXSCANTIME 20.0 /* [20] Maximum scan time in seconds */ #define SW_THREAD_TIMEOUT (10 * 60.0) /* [10 Min] Switch read thread timeout */ @@ -118,7 +120,7 @@ #undef DEBUG /* Turn on debug printfs */ #undef PLOT_DEBUG /* Use plot to show readings & processing */ #undef PLOT_REFRESH /* Plot refresh rate measurement info */ -#undef PLOT_UPDELAY /* Plot data used to determine display update delay */ +#undef PLOT_UPDELAY /* Plot data used to determine display update delay */ #undef DUMP_SCANV /* Dump scan readings to a file "i1pdump.txt" */ #undef DUMP_DARKM /* Append raw dark readings to file "i1pddump.txt" */ #undef APPEND_MEAN_EMMIS_VAL /* Append averaged uncalibrated reading to file "i1pdump.txt" */ @@ -377,8 +379,13 @@ void del_i1proimp(i1pro *p) { m->th->del(m->th); usb_uninit_cancel(&m->sw_cancel); /* Don't need cancel token now */ usb_uninit_cancel(&m->rd_sync); /* Don't need sync token now */ + a1logd(p->log,5,"i1pro switch thread terminated\n"); + } + + if (m->trig_thread != NULL) { + m->trig_thread->del(m->trig_thread); + a1logd(p->log,5,"i1pro trigger thread terminated\n"); } - a1logd(p->log,5,"i1pro switch thread terminated\n"); /* Free any per mode data */ for (i = 0; i < i1p_no_modes; i++) { @@ -1312,20 +1319,24 @@ i1pro_code i1pro_imp_set_mode( case i1p_refl_spot: case i1p_refl_scan: if (p->itype == instI1Monitor) - return I1PRO_INT_ILLEGALMODE; /* i1Monitor */ - /* Fall through */ + return I1PRO_INT_ILLEGALMODE; /* i1Monitor can't do reflection */ + break; case i1p_emiss_spot_na: case i1p_emiss_spot: case i1p_emiss_scan: + break; case i1p_amb_spot: case i1p_amb_flash: + if (!i1pro_imp_ambient(p)) + return I1PRO_INT_ILLEGALMODE; + break; case i1p_trans_spot: case i1p_trans_scan: - m->mmode = mmode; break; default: return I1PRO_INT_ILLEGALMODE; } + m->mmode = mmode; m->spec_en = (mode & inst_mode_spectral) != 0; if ((mode & inst_mode_highres) != 0) { @@ -1352,6 +1363,10 @@ i1pro_code i1pro_imp_get_n_a_cals(i1pro *p, inst_cal_type *pn_cals, inst_cal_typ time_t curtime = time(NULL); inst_cal_type n_cals = inst_calt_none; inst_cal_type a_cals = inst_calt_none; + int wl_valid = cs->wl_valid; /* Locally timed out versions of valid state */ + int idark_valid = cs->idark_valid; + int dark_valid = cs->dark_valid; + int cal_valid = cs->cal_valid; a1logd(p->log,2,"i1pro_imp_get_n_a_cals: checking mode %d\n",m->mmode); @@ -1359,63 +1374,63 @@ i1pro_code i1pro_imp_get_n_a_cals(i1pro *p, inst_cal_type *pn_cals, inst_cal_typ if (m->capabilities2 & I1PRO_CAP2_WL_LED) { if ((curtime - cs->wldate) > WLCALTOUT) { a1logd(p->log,2,"Invalidating wavelength cal as %d secs from last cal\n",curtime - cs->wldate); - cs->wl_valid = 0; + wl_valid = 0; } } - if ((curtime - cs->iddate) > ((p->itype == instI1Pro) ? DCALTOUT2 : DCALTOUT)) { + if ((curtime - cs->iddate) > ((p->itype == instI1Pro2) ? DCALTOUT2 : DCALTOUT)) { a1logd(p->log,2,"Invalidating adaptive dark cal as %d secs from last cal\n",curtime - cs->iddate); - cs->idark_valid = 0; + idark_valid = 0; } - if ((curtime - cs->ddate) > ((p->itype == instI1Pro) ? DCALTOUT2 : DCALTOUT)) { + if ((curtime - cs->ddate) > ((p->itype == instI1Pro2) ? DCALTOUT2 : DCALTOUT)) { a1logd(p->log,2,"Invalidating dark cal as %d secs from last cal\n",curtime - cs->ddate); - cs->dark_valid = 0; + dark_valid = 0; } if (!cs->emiss && (curtime - cs->cfdate) > WCALTOUT) { a1logd(p->log,2,"Invalidating white cal as %d secs from last cal\n",curtime - cs->cfdate); - cs->cal_valid = 0; + cal_valid = 0; } #ifdef NEVER printf("~1 reflective = %d, adaptive = %d, emiss = %d, trans = %d, scan = %d\n", cs->reflective, cs->adaptive, cs->emiss, cs->trans, cs->scan); printf("~1 idark_valid = %d, dark_valid = %d, cal_valid = %d\n", - cs->idark_valid,cs->dark_valid,cs->cal_valid); + idark_valid,dark_valid,cal_valid); printf("~1 want_calib = %d, want_dcalib = %d, noinitcalib = %d\n", cs->want_calib,cs->want_dcalib, m->noinitcalib); #endif /* NEVER */ if (m->capabilities2 & I1PRO_CAP2_WL_LED) { - if (!cs->wl_valid + if (!wl_valid || (cs->want_dcalib && !m->noinitcalib)) // ?? want_dcalib ?? n_cals |= inst_calt_wavelength; a_cals |= inst_calt_wavelength; } if (cs->reflective) { - if (!cs->dark_valid + if (!dark_valid || (cs->want_dcalib && !m->noinitcalib)) n_cals |= inst_calt_ref_dark; a_cals |= inst_calt_ref_dark; - if (!cs->cal_valid + if (!cal_valid || (cs->want_calib && !m->noinitcalib)) n_cals |= inst_calt_ref_white; a_cals |= inst_calt_ref_white; } if (cs->emiss) { - if ((!cs->adaptive && !cs->dark_valid) - || (cs->adaptive && !cs->idark_valid) + if ((!cs->adaptive && !dark_valid) + || (cs->adaptive && !idark_valid) || (cs->want_dcalib && !m->noinitcalib)) n_cals |= inst_calt_em_dark; a_cals |= inst_calt_em_dark; } if (cs->trans) { - if ((!cs->adaptive && !cs->dark_valid) - || (cs->adaptive && !cs->idark_valid) + if ((!cs->adaptive && !dark_valid) + || (cs->adaptive && !idark_valid) || (cs->want_dcalib && !m->noinitcalib)) n_cals |= inst_calt_trans_dark; a_cals |= inst_calt_trans_dark; - if (!cs->cal_valid + if (!cal_valid || (cs->want_calib && !m->noinitcalib)) n_cals |= inst_calt_trans_vwhite; a_cals |= inst_calt_trans_vwhite; @@ -2208,8 +2223,9 @@ i1pro_code i1pro_imp_calibrate( s->cal_factor[0], m->white_ref[0], s->cal_factor[0], s->cal_factor[1], m->white_ref[1], s->cal_factor[1], !s->scan); /* Use this for emis hires fine tune if not scan */ - - if (ev != I1PRO_RD_TRANSWHITEWARN && ev != I1PRO_OK) { + if (ev == I1PRO_RD_TRANSWHITEWARN) /* Shouldn't happen ? */ + ev = I1PRO_OK; + if (ev != I1PRO_OK) { m->mmode = mmode; /* Restore actual mode */ return ev; } @@ -2395,12 +2411,15 @@ int icoms2i1pro_err(int se) { } /* - - - - - - - - - - - - - - - - */ -/* Measure a display update delay. It is assumed that a */ +/* Measure a display update delay. It is assumed that */ +/* white_stamp(init) has been called, and then a */ /* white to black change has been made to the displayed color, */ /* and this will measure the time it took for the update to */ -/* be noticed by the instrument, up to 0.6 seconds. */ +/* be noticed by the instrument, up to 2.0 seconds. */ +/* (It is assumed that white_change() will be called at the time the patch */ +/* changes color.) */ /* inst_misread will be returned on failure to find a transition to black. */ -#define NDMXTIME 0.7 /* Maximum time to take */ +#define NDMXTIME 2.0 /* Maximum time to take */ #define NDSAMPS 500 /* Debug samples */ typedef struct { @@ -2411,7 +2430,8 @@ typedef struct { i1pro_code i1pro_imp_meas_delay( i1pro *p, -int *msecdelay) { /* Return the number of msec */ +int *pdispmsec, /* Return display update delay in msec */ +int *pinstmsec) { /* Return instrument latency in msec */ i1pro_code ev = I1PRO_OK; i1proimp *m = (i1proimp *)p->m; i1pro_state *s = &m->ms[m->mmode]; @@ -2419,12 +2439,20 @@ int *msecdelay) { /* Return the number of msec */ double **multimeas; /* Spectral measurements */ int nummeas; double rgbw[3] = { 610.0, 520.0, 460.0 }; - double ucalf = 1.0; /* usec_time calibration factor */ double inttime; + double rstart; i1rgbdsamp *samp; double stot, etot, del, thr; - double etime; - int isdeb; + double stime, etime; + int dispmsec, instmsec; + + if (pinstmsec != NULL) + *pinstmsec = 0; + + if ((rstart = usec_time()) < 0.0) { + a1loge(p->log, inst_internal_error, "i1pro_imp_meas_delay: No high resolution timers\n"); + return inst_internal_error; + } /* Read the samples */ inttime = m->min_int_time; @@ -2435,16 +2463,23 @@ int *msecdelay) { /* Return the number of msec */ return I1PRO_INT_MALLOC; } -//printf("~1 %d samples at %f int\n",nummeas,inttime); + /* We rely on the measurement code setting m->trigstamp when the */ + /* trigger packet is sent to the instrument */ if ((ev = i1pro_read_patches_all(p, multimeas, nummeas, &inttime, 0)) != inst_ok) { free_dmatrix(multimeas, 0, nummeas-1, 0, m->nwav[m->highres]-1); free(samp); return ev; - } + } + + if (m->whitestamp < 0.0) { + a1logd(p->log, 1, "i1d3_meas_delay: White transition wasn't timestamped\n"); + return inst_internal_error; + } /* Convert the samples to RGB */ + /* Add 10 msec fudge factor */ for (i = 0; i < nummeas; i++) { - samp[i].sec = i * inttime; + samp[i].sec = i * inttime + (m->trigstamp - m->whitestamp)/1000000.0 + 0.01; samp[i].rgb[0] = samp[i].rgb[1] = samp[i].rgb[2] = 0.0; for (j = 0; j < m->nwav[m->highres]; j++) { double wl = XSPECT_WL(m->wl_short[m->highres], m->wl_long[m->highres], m->nwav[m->highres], j); @@ -2462,37 +2497,15 @@ int *msecdelay) { /* Return the number of msec */ } free_dmatrix(multimeas, 0, nummeas-1, 0, m->nwav[m->highres]-1); - a1logd(p->log, 3, "i1pro_measure_refresh: Read %d samples for refresh calibration\n",nummeas); - -#ifdef PLOT_UPDELAY - /* Plot the raw sensor values */ - { - double xx[NDSAMPS]; - double y1[NDSAMPS]; - double y2[NDSAMPS]; - double y3[NDSAMPS]; - double y4[NDSAMPS]; - - for (i = 0; i < nummeas && i < NDSAMPS; i++) { - xx[i] = samp[i].sec; - y1[i] = samp[i].rgb[0]; - y2[i] = samp[i].rgb[1]; - y3[i] = samp[i].rgb[2]; - y4[i] = samp[i].tot; -//printf("%d: %f -> %f\n",i,samp[i].sec, samp[i].tot); - } - printf("Display update delay measure sensor values and time (sec)\n"); - do_plot6(xx, y1, y2, y3, y4, NULL, NULL, nummeas); - } -#endif + a1logd(p->log, 3, "i1pro_meas_delay: Read %d samples for refresh calibration\n",nummeas); /* Over the first 100msec, locate the maximum value */ - etime = samp[nummeas-1].sec; + stime = samp[0].sec; stot = -1e9; for (i = 0; i < nummeas; i++) { if (samp[i].tot > stot) stot = samp[i].tot; - if (samp[i].sec > 0.1) + if ((samp[i].sec - stime) > 0.1) break; } @@ -2506,34 +2519,73 @@ int *msecdelay) { /* Return the number of msec */ break; } - del = stot - etot; - thr = etot + 0.30 * del; /* 30% of transition threshold */ + del = etot - stot; + thr = stot + 0.30 * del; /* 30% of transition threshold */ #ifdef PLOT_UPDELAY a1logd(p->log, 0, "i1pro_meas_delay: start tot %f end tot %f del %f, thr %f\n", stot, etot, del, thr); #endif +#ifdef PLOT_UPDELAY + /* Plot the raw sensor values */ + { + double xx[NDSAMPS]; + double y1[NDSAMPS]; + double y2[NDSAMPS]; + double y3[NDSAMPS]; + double y4[NDSAMPS]; + + for (i = 0; i < nummeas && i < NDSAMPS; i++) { + xx[i] = samp[i].sec; + y1[i] = samp[i].rgb[0]; + y2[i] = samp[i].rgb[1]; + y3[i] = samp[i].rgb[2]; + y4[i] = samp[i].tot; +//printf("%d: %f -> %f\n",i,samp[i].sec, samp[i].tot); + } + printf("Display update delay measure sensor values and time (sec)\n"); + do_plot6(xx, y1, y2, y3, y4, NULL, NULL, nummeas); + } +#endif + /* Check that there has been a transition */ if (del < 5.0) { free(samp); - a1logd(p->log, 1, "i1pro_meas_delay: can't detect change from white to black\n"); + a1logd(p->log, 1, "i1pro_meas_delay: can't detect change from black to white\n"); return I1PRO_RD_NOTRANS_FOUND; } - /* Locate the time at which the values are above the end values */ - for (i = nummeas-1; i >= 0; i--) { + /* Working from the start, locate the time at which the level was above the threshold */ + for (i = 0; i < (nummeas-1); i++) { if (samp[i].tot > thr) break; } - if (i < 0) /* Assume the update was so fast that we missed it */ - i = 0; a1logd(p->log, 2, "i1pro_meas_delay: stoped at sample %d time %f\n",i,samp[i].sec); - *msecdelay = (int)(samp[i].sec * 1000.0 + 0.5); + /* Compute overall delay */ + dispmsec = (int)(samp[i].sec * 1000.0 + 0.5); /* Display update time */ + instmsec = (int)((m->trigstamp - rstart)/1000.0 + 0.5); /* Reaction time */ + +#ifdef PLOT_UPDELAY + a1logd(p->log, 0, "i1pro_meas_delay: disp %d, trig %d msec\n",dispmsec,instmsec); +#else + a1logd(p->log, 2, "i1pro_meas_delay: disp %d, trig %d msec\n",dispmsec,instmsec); +#endif + + if (dispmsec < 0) /* This can happen if the patch generator delays it's return */ + dispmsec = 0; + + if (pdispmsec != NULL) + *pdispmsec = dispmsec; + + if (pinstmsec != NULL) + *pinstmsec = instmsec; #ifdef PLOT_UPDELAY - a1logd(p->log, 0, "i1pro_meas_delay: returning %d msec\n",*msecdelay); + a1logd(p->log, 0, "i1pro_meas_delay: returning %d & %d msec\n",dispmsec,instmsec); +#else + a1logd(p->log, 2, "i1pro_meas_delay: returning %d & %d msec\n",dispmsec,instmsec); #endif free(samp); @@ -2542,6 +2594,22 @@ int *msecdelay) { /* Return the number of msec */ #undef NDSAMPS #undef NDMXTIME +/* Timestamp the white patch change during meas_delay() */ +inst_code i1pro_imp_white_change(i1pro *p, int init) { + i1proimp *m = (i1proimp *)p->m; + + if (init) + m->whitestamp = -1.0; + else { + if ((m->whitestamp = usec_time()) < 0.0) { + a1loge(p->log, inst_internal_error, "i1pro_imp_wite_change: No high resolution timers\n"); + return inst_internal_error; + } + } + + return inst_ok; +} + /* - - - - - - - - - - - - - - - - */ /* Measure a patch or strip in the current mode. */ /* To try and speed up the reaction time between */ @@ -2592,7 +2660,7 @@ i1pro_code i1pro_imp_measure( return I1PRO_INT_WRONGPATCHES; } - /* Notional number of measurements, befor adaptive and not counting scan */ + /* Notional number of measurements, before adaptive and not counting scan */ nummeas = i1pro_comp_nummeas(p, s->wreadtime, s->inttime); /* Allocate buf for pre-measurement dark calibration */ @@ -2984,7 +3052,6 @@ i1pro_code i1pro_imp_meas_refrate( double **multimeas; /* Spectral measurements */ int nummeas; double rgbw[3] = { 610.0, 520.0, 460.0 }; - double ucalf = 1.0; /* usec_time calibration factor */ double inttime; static unsigned int randn = 0x12345678; struct { @@ -3015,6 +3082,9 @@ i1pro_code i1pro_imp_meas_refrate( a1logd(p->log,2,"i1pro_imp_meas_refrate called\n"); + if (ref_rate != NULL) + *ref_rate = 0.0; + if (!s->emiss) { a1logd(p->log,2,"i1pro_imp_meas_refrate not in emissive mode\n"); return I1PRO_UNSUPPORTED; @@ -3063,7 +3133,7 @@ i1pro_code i1pro_imp_meas_refrate( free_dmatrix(multimeas, 0, nummeas-1, 0, m->nwav[m->highres]-1); nfsamps = i; - a1logd(p->log, 3, "i1pro_measure_refresh: Read %d samples for refresh calibration\n",nfsamps); + a1logd(p->log, 3, "i1pro_meas_refrate: Read %d samples for refresh calibration\n",nfsamps); #ifdef NEVER /* Plot the raw sensor values */ @@ -3102,7 +3172,6 @@ i1pro_code i1pro_imp_meas_refrate( /* Re-zero the sample times, and normalise the readings */ for (i = nfsamps-1; i >= 0; i--) { samp[i].sec -= samp[0].sec; - samp[i].sec *= ucalf; if (samp[i].sec > maxt) maxt = samp[i].sec; for (j = 0; j < 3; j++) { @@ -3116,7 +3185,7 @@ i1pro_code i1pro_imp_meas_refrate( nbins = 1 + (int)(maxt * 1000.0 * PBPMS + 0.5); for (j = 0; j < 3; j++) { if ((bins[j] = (double *)calloc(sizeof(double), nbins)) == NULL) { - a1loge(p->log, inst_internal_error, "i1pro_measure_refresh: malloc failed\n"); + a1loge(p->log, inst_internal_error, "i1pro_meas_refrate: malloc failed\n"); return I1PRO_INT_MALLOC; } } @@ -3153,7 +3222,7 @@ i1pro_code i1pro_imp_meas_refrate( y3 = malloc(sizeof(double) * nbins); if (xx == NULL || y1 == NULL || y2 == NULL || y3 == NULL) { - a1loge(p->log, inst_internal_error, "i1pro_measure_refresh: malloc failed\n"); + a1loge(p->log, inst_internal_error, "i1pro_meas_refrate: malloc failed\n"); for (j = 0; j < 3; j++) free(bins[j]); return I1PRO_INT_MALLOC; @@ -3596,9 +3665,6 @@ i1pro_code i1pro_imp_meas_refrate( a1logd(p->log, 3, "Not enough tries suceeded to determine refresh rate\n"); } - if (ref_rate != NULL) - *ref_rate = 0.0; - return I1PRO_RD_NOREFR_FOUND; } #undef NFSAMPS @@ -4719,6 +4785,8 @@ i1pro_code i1pro_whitemeasure( /* absolute linearised sensor values. */ if ((ev = i1pro_sens_to_absraw(p, multimes, buf, nummeas, *inttime, gainmode, &darkthresh)) != I1PRO_OK) { + free_dmatrix(multimes, 0, nummeas-1, -1, m->nraw-1); + free(buf); return ev; } @@ -4734,8 +4802,8 @@ i1pro_code i1pro_whitemeasure( ev = i1pro_whitemeasure_3(p, abswav0, abswav1, absraw, optscale, nummeas, *inttime, gainmode, targoscale, multimes, darkthresh); - free(buf); free_dmatrix(multimes, 0, nummeas-1, -1, m->nraw-1); + free(buf); return ev; } @@ -4954,6 +5022,9 @@ i1pro_code i1pro2_wl_measure( /* absolute linearised sensor values. */ if ((ev = i1pro_sens_to_absraw(p, multimes, buf, nummeas, *inttime, gainmode, &darkthresh)) != I1PRO_OK) { + free_dmatrix(multimes, 0, nummeas-1, -1, m->nraw-1); + free_dvector(dark, -1, m->nraw-1); + free(buf); return ev; } @@ -4993,11 +5064,17 @@ i1pro_code i1pro2_wl_measure( #ifndef IGNORE_WHITE_INCONS if (rv & 1) { + free_dmatrix(multimes, 0, nummeas-1, -1, m->nraw-1); + free_dvector(dark, -1, m->nraw-1); + free(buf); return I1PRO_RD_WHITEREADINCONS; } #endif /* IGNORE_WHITE_INCONS */ if (rv & 2) { + free_dmatrix(multimes, 0, nummeas-1, -1, m->nraw-1); + free_dvector(dark, -1, m->nraw-1); + free(buf); return I1PRO_RD_SENSORSATURATED; } @@ -5017,9 +5094,9 @@ i1pro_code i1pro2_wl_measure( *optscale = opttarget/lhighest; } - free(buf); free_dmatrix(multimes, 0, nummeas-1, -1, m->nraw-1); free_dvector(dark, -1, m->nraw-1); + free(buf); return ev; } @@ -5102,7 +5179,9 @@ i1pro_code i1pro_read_patches_2( /* Take a buffer full of raw readings, and convert them to */ /* absolute linearised sensor values. */ if ((ev = i1pro_sens_to_absraw(p, multimes, buf, nmeasuered, inttime, gainmode, &darkthresh)) - != I1PRO_OK) { + != I1PRO_OK) { + free_dmatrix(absraw, 0, numpatches-1, -1, m->nraw-1); + free_dmatrix(multimes, 0, nmeasuered-1, -1, m->nraw-1); return ev; } @@ -5184,6 +5263,7 @@ i1pro_code i1pro_read_patches_2( } } } + free_dmatrix(multimes, 0, nmeasuered-1, -1, m->nraw-1); if (rv & 1) { free_dmatrix(absraw, 0, numpatches-1, -1, m->nraw-1); @@ -5470,6 +5550,9 @@ i1pro_code i1pro_trialmeasure( /* absolute linearised sensor values. */ if ((ev = i1pro_sens_to_absraw(p, multimes, buf, nmeasuered, *inttime, gainmode, &darkthresh)) != I1PRO_OK) { + free_dvector(absraw, -1, m->nraw-1); + free_dmatrix(multimes, 0, nummeas-1, -1, m->nraw-1); + free(buf); return ev; } @@ -6504,6 +6587,9 @@ i1pro_code i1pro_extract_patches_multimeas( /* Now threshold the measurements into possible patches */ apat = 2 * nummeas; if ((pat = (i1pro_patch *)malloc(sizeof(i1pro_patch) * apat)) == NULL) { + free_ivector(sizepop, 0, nummeas-1); + free_dvector(slope, 0, nummeas-1); + free_dvector(maxval, -1, m->nraw-1); a1logd(p->log, 1, "i1pro: malloc of patch structures failed!\n"); return I1PRO_INT_MALLOC; } @@ -6517,6 +6603,9 @@ i1pro_code i1pro_extract_patches_multimeas( if (npat >= apat) { apat *= 2; if ((pat = (i1pro_patch *)realloc(pat, sizeof(i1pro_patch) * apat)) == NULL) { + free_ivector(sizepop, 0, nummeas-1); + free_dvector(slope, 0, nummeas-1); + free_dvector(maxval, -1, m->nraw-1); a1logd(p->log, 1, "i1pro: reallloc of patch structures failed!\n"); return I1PRO_INT_MALLOC; } @@ -6969,7 +7058,7 @@ i1pro_code i1pro_extract_patches_flash( nsampl++; } - /* Average all the values over the threshold, */ + /* Integrate all the values over the threshold, */ /* and also one either side of flash */ for (j = 0; j < m->nraw-1; j++) pavg[j] = 0.0; @@ -7370,7 +7459,7 @@ static double wlcal_opt1(void *vcx, double tp[]) { ix = ((int)xv) - 1; /* Reference index of Lagrange for this xv */ if (ix < 0) continue; - if ((ix + 3) > cx->wl_ref_n) + if ((ix + 4) > cx->wl_ref_n) break; /* Compute interpolated value of reference using Lagrange: */ @@ -8385,7 +8474,9 @@ i1pro_code i1pro_create_hr_calfactors(i1pro *p, int eonly) { s->cal_factor[0], m->white_ref[0], s->cal_factor[0], s->cal_factor[1], m->white_ref[1], s->cal_factor[1], i == i1p_refl_spot); - if (ev != I1PRO_RD_TRANSWHITEWARN && ev != I1PRO_OK) { + if (ev == I1PRO_RD_TRANSWHITEWARN) /* Shouldn't happen ? */ + ev = I1PRO_OK; + if (ev != I1PRO_OK) { return ev; } #ifdef NEVER @@ -8429,7 +8520,9 @@ i1pro_code i1pro_create_hr_calfactors(i1pro *p, int eonly) { i1pro_absraw_to_abswav(p, 1, s->reflective, 1, &s->cal_factor[1], &s->white_data); ev = i1pro_compute_white_cal(p, s->cal_factor[0], NULL, s->cal_factor[0], s->cal_factor[1], NULL, s->cal_factor[1], 0); - if (ev != I1PRO_RD_TRANSWHITEWARN && ev != I1PRO_OK) { + if (ev == I1PRO_RD_TRANSWHITEWARN) /* Ignore this ? */ + ev = I1PRO_OK; + if (ev != I1PRO_OK) { return ev; } } @@ -8975,7 +9068,8 @@ i1pro_code i1pro_create_hr(i1pro *p) { /* Our upsampling is OK for reflective and ambient cal's, */ /* but isn't so good for the emissive cal., especially */ - /* on the i1pro2. We'll get an opportunity to fix it */ + /* on the i1pro2 which has a rather bumpy diffraction */ + /* grating/sensor. We'll get an opportunity to fix it */ /* when we do a reflective calibration, by using the */ /* smoothness of the lamp as a reference. */ @@ -9947,20 +10041,23 @@ i1pro_code i1pro_check_white_reference1( free_dvector(emiswav, -1, m->nraw-1); + /* And check them against tolerance for the illuminant. */ if (m->physfilt == 0x82) { /* UV filter */ + a1logd(p->log,2,"Checking white reference (UV): 0.0 < avg01 %f < 0.05, 1.2 < avg2227 %f < 1.76\n",avg01,avg2227); if (0.0 < avg01 && avg01 < 0.05 && 1.2 < avg2227 && avg2227 < 1.76) { return I1PRO_OK; } } else { /* No filter */ + a1logd(p->log,2,"Checking white reference: 0.11 < avg01 %f < 0.22, 1.35 < avg2227 %f < 1.6\n",avg01,avg2227); if (0.11 < avg01 && avg01 < 0.22 && 1.35 < avg2227 && avg2227 < 1.6) { return I1PRO_OK; } } - a1logd(p->log,2,"Checking white reference failed, 0.11 < avg01 %f < 0.22, 1.35 < avg2227 %f < 1.6\n",avg01,avg2227); + a1logd(p->log,2,"Checking white reference failed - out of tollerance"); return I1PRO_RD_WHITEREFERROR; } @@ -10504,7 +10601,9 @@ int i1pro_switch_thread(void *pp) { i1proimp *m = (i1proimp *)p->m; i1pro_code rv = I1PRO_OK; a1logd(p->log,3,"Switch thread started\n"); - for (nfailed = 0;nfailed < 5;) { +// for (nfailed = 0;nfailed < 5;) + /* Try indefinitely, in case instrument is put to sleep */ + for (;;) { rv = i1pro_waitfor_switch_th(p, SW_THREAD_TIMEOUT); a1logd(p->log,8,"Switch handler triggered with rv %d, th_term %d\n",rv,m->th_term); if (m->th_term) { @@ -10928,7 +11027,7 @@ i1pro_delayed_trigger(void *pp) { se = p->icom->usb_control(p->icom, IUSB_ENDPOINT_OUT | IUSB_REQ_TYPE_VENDOR | IUSB_REQ_RECIP_DEVICE, 0xC0, 0, 0, NULL, 0, 2.0); - + m->trigstamp = usec_time(); m->tr_t2 = msec_time(); /* Diagnostic */ m->trig_se = se; @@ -10954,8 +11053,10 @@ i1pro_triggermeasure(i1pro *p, int delay) { /* NOTE := would be better here to create thread once, and then trigger it */ /* using a condition variable. */ - if (m->trig_thread != NULL) + if (m->trig_thread != NULL) { m->trig_thread->del(m->trig_thread); + m->trig_thread = NULL; + } m->tr_t1 = m->tr_t2 = m->tr_t3 = m->tr_t4 = m->tr_t5 = m->tr_t6 = m->tr_t7 = 0; m->trig_delay = delay; @@ -10981,7 +11082,7 @@ i1pro_triggermeasure(i1pro *p, int delay) { /* between triggering the measurement and starting this read. */ /* It appears that the read can be pending before triggering though. */ /* Scan reads will also terminate if there is too great a delay beteween each read.) */ -i1pro_code +static i1pro_code i1pro_readmeasurement( i1pro *p, int inummeas, /* Initial number of measurements to expect */ @@ -11525,6 +11626,7 @@ i1pro2_delayed_trigger(void *pp) { a1logd(p->log,2,"i1pro2_delayed_trigger: trigger Rev E @ %d msec\n", (stime = msec_time()) - m->msec); + m->trigstamp = usec_time(); se = p->icom->usb_control(p->icom, IUSB_ENDPOINT_OUT | IUSB_REQ_TYPE_VENDOR | IUSB_REQ_RECIP_DEVICE, 0xD4, 0, 0, pbuf, 14, 2.0); diff --git a/spectro/i1pro_imp.h b/spectro/i1pro_imp.h index c0d0708..6bf8de4 100644 --- a/spectro/i1pro_imp.h +++ b/spectro/i1pro_imp.h @@ -319,6 +319,9 @@ struct _i1proimp { int trig_se; /* Delayed trigger icoms error */ i1pro_code trig_rv; /* Delayed trigger result */ + volatile double whitestamp; /* meas_delay() white timestamp */ + volatile double trigstamp; /* meas_delay() trigger timestamp */ + }; typedef struct _i1proimp i1proimp; /* Add an implementation structure */ @@ -344,6 +347,7 @@ void del_i1proimp(i1pro *p); #define I1PRO_UNSUPPORTED 0x79 /* Unsupported function */ #define I1PRO_CAL_SETUP 0x7A /* Cal. retry with correct setup is needed */ +#define I1PRO_RD_TRANSWHITEWARN 0x7B /* Transmission white ref wl are low */ /* Real error code */ #define I1PRO_OK 0x00 @@ -395,10 +399,6 @@ void del_i1proimp(i1pro *p); #define I1PRO_RD_NOREFR_FOUND 0x40 /* Unable to measure refresh rate */ #define I1PRO_RD_NOTRANS_FOUND 0x41 /* Unable to measure delay transition */ -#define I1PRO_CAL_SETUP 0x7A /* Cal. retry with correct setup is needed */ -#define I1PRO_RD_TRANSWHITEWARN 0x7B /* Transmission white ref wl are low */ - - /* Internal errors */ #define I1PRO_INT_NO_COMS 0x50 #define I1PRO_INT_EETOOBIG 0x51 /* EEProm read size is too big */ @@ -480,8 +480,11 @@ i1pro_code i1pro_imp_meas_refrate( /* Measure the display update delay */ i1pro_code i1pro_imp_meas_delay( i1pro *p, - int *msecdelay -); + int *pdispmsec, + int *pinstmsec); + +/* Timestamp the white patch change during meas_delay() */ +inst_code i1pro_imp_white_change(i1pro *p, int init); /* Given a raw measurement of the wavelength LED, */ /* Compute the base offset that best fits it to the reference */ @@ -979,7 +982,7 @@ i1pro_triggermeasure(i1pro *p, int delay); /* Read a measurements results */ -i1pro_code +static i1pro_code i1pro_readmeasurement( i1pro *p, int inummeas, /* Initial number of measurements to expect */ diff --git a/spectro/icoms.c b/spectro/icoms.c index 0166e21..fb0fa20 100644 --- a/spectro/icoms.c +++ b/spectro/icoms.c @@ -369,10 +369,12 @@ static int icoms_write_read( icoms *p, char *wbuf, /* Write puffer */ +int nwch, /* if > 0, number of characters to write */ char *rbuf, /* Read buffer */ int bsize, /* Buffer size */ -char *tc, /* Terminating characers, NULL for none */ -int ntc, /* Number of terminating characters needed to terminate */ +int *bread, /* Bytes read (not including forced '\000') */ +char *tc, /* Terminating characers, NULL for none or char count mode */ +int ntc, /* Number of terminating characters needed, or char count needed */ double tout ) { int rv = ICOM_OK; @@ -392,14 +394,14 @@ double tout if (debug < 8) p->log->debug = 0; for (; rv == ICOM_OK;) /* Until we get a timeout */ - rv = p->read(p, rbuf, bsize, '\000', 100000, 0.01); + rv = p->read(p, rbuf, bsize, NULL, NULL, bsize, 0.01); p->log->debug = debug; rv = ICOM_OK; } #endif /* Write the write data */ - rv = p->write(p, wbuf, tout); + rv = p->write(p, wbuf, nwch, tout); /* Return error if coms */ if (rv != ICOM_OK) { @@ -408,7 +410,7 @@ double tout } /* Read response */ - rv = p->read(p, rbuf, bsize, tc, ntc, tout); + rv = p->read(p, rbuf, bsize, bread, tc, ntc, tout); a1logd(p->log, 8, "icoms_write_read: returning 0x%x\n",rv); @@ -504,21 +506,56 @@ void bad_beep() { msec_beep(350, 800, 200); } +char *baud_rate_to_str(baud_rate br) { + switch (br) { + case baud_nc: + return "Not Configured"; + case baud_110: + return "110"; + case baud_300: + return "300"; + case baud_600: + return "600"; + case baud_1200: + return "1400"; + case baud_2400: + return "2400"; + case baud_4800: + return "4800"; + case baud_9600: + return "9600"; + case baud_14400: + return "14400"; + case baud_19200: + return "19200"; + case baud_38400: + return "38400"; + case baud_57600: + return "57600"; + case baud_115200: + return "115200"; + case baud_921600: + return "921600"; + } + return "Unknown"; +} + /* Convert control chars to ^[A-Z] notation in a string */ -/* Can be called 5 times without reusing the static buffer */ +/* Can be called 3 times without reusing the static buffer */ +/* Returns a maximum of 5000 characters */ char * icoms_fix(char *ss) { - static unsigned char buf[5][1005]; + static unsigned char buf[3][10005]; static int ix = 0; unsigned char *d; unsigned char *s = (unsigned char *)ss; - if (++ix >= 5) + if (++ix >= 3) ix = 0; if (ss == NULL) { strcpy((char *)buf[ix],"(null)"); return (char *)buf[ix]; } - for(d = buf[ix]; (d - buf[ix]) < 1000;) { + for(d = buf[ix]; (d - buf[ix]) < 10000;) { if (*s < ' ' && *s > '\000') { *d++ = '^'; *d++ = *s++ + '@'; diff --git a/spectro/icoms.h b/spectro/icoms.h index f219312..a9d8d34 100644 --- a/spectro/icoms.h +++ b/spectro/icoms.h @@ -152,7 +152,8 @@ typedef enum { fc_nc = 0, /* not configured/default */ fc_none, fc_XonXOff, - fc_Hardware + fc_Hardware, /* RTS CTS flow control */ + fc_HardwareDTR /* DTR DSR flow control */ } flow_control; /* baud rate available on all systems */ @@ -173,6 +174,8 @@ typedef enum { baud_921600 = 13 } baud_rate; +char *baud_rate_to_str(baud_rate br); + /* Possible parity */ typedef enum { parity_nc, @@ -209,7 +212,7 @@ typedef enum { /* Type of port */ typedef enum { icomt_serial, /* Serial port */ - icomt_usbserial, /* USB Serial port */ + icomt_usbserial, /* USB (fast) Serial port, i.e. FTDI */ icomt_usb, /* USB port */ icomt_hid /* HID (USB) port */ } icom_type; @@ -295,8 +298,10 @@ struct _icoms { int nep; /* Number of end points */ int wr_ep, rd_ep; /* Default end points to use for "serial" read/write */ int rd_qa; /* Read quanta size */ - int ms_bytes; /* No. Modem status bytes to strip from each read */ + int ms_bytes; /* No. of Modem status bytes to strip from each read */ int latmsec; /* Latency timeout in msec for modem status bytes */ + int (*interp_ms)(struct _icoms *p, unsigned char *msbytes); + /* return icom error from ms bytes, NULL if none */ usb_ep ep[32]; /* Information about each end point for general usb i/o */ @@ -364,7 +369,8 @@ struct _icoms { /* return icom error */ int (*write)( struct _icoms *p, - char *buf, + char *buf, /* null terminated unless nch > 0 */ + int nch, /* if > 0, number of characters to write */ double tout); /* Timeout in seconds */ /* "Serial" read characters into the buffer */ @@ -374,8 +380,10 @@ struct _icoms { struct _icoms *p, char *buf, /* Buffer to store characters read */ int bsize, /* Buffer size */ - char *tc, /* Terminating characters */ - int ntc, /* Number of terminating characters seen */ + int *bread, /* Bytes read (not including forced '\000') */ + char *tc, /* Terminating characters, NULL for none or char count mode */ + int ntc, /* Number of terminating characters or char count needed, */ + /* if 0 use bsize. */ double tout); /* Timeout in seconds */ /* "Serial" write and read */ @@ -383,10 +391,12 @@ struct _icoms { int (*write_read)( struct _icoms *p, char *wbuf, /* Write puffer */ + int nwch, /* if > 0, number of characters to write */ char *rbuf, /* Read buffer */ int bsize, /* Buffer size */ - char *tc, /* Terminating characers */ - int ntc, /* Number of terminating characters seen */ + int *bread, /* Bytes read (not including forced '\000') */ + char *tc, /* Terminating characers, NULL for none or char count mode */ + int ntc, /* Number of any terminating characters needed, or char count needed */ double tout); /* Timeout in seconds */ /* For a USB device, do a control message */ @@ -467,7 +477,8 @@ extern icoms *new_icoms(icompath *ipath, a1log *log); /* - - - - - - - - - - - - - - - - - - -- */ /* Utilities */ -/* Convert control chars to ^[A-Z] notation in a string */ +/* Convert control chars to ^[A-Z] notation in a string. */ +/* Returns a maximum of 1000 characters in static buffer. */ char *icoms_fix(char *s); /* Convert a limited binary buffer to a list of hex */ diff --git a/spectro/icoms_nt.c b/spectro/icoms_nt.c index 3caa8e0..6e2741d 100644 --- a/spectro/icoms_nt.c +++ b/spectro/icoms_nt.c @@ -229,9 +229,15 @@ int icompaths_refresh_paths(icompaths *p) { fast = 1; } +#ifndef ENABLE_SERIAL + if (fast) { /* Only add fast ports if !ENABLE_SERIAL */ +#endif /* Add the port to the list */ p->add_serial(p, value, value, fast); a1logd(p->log, 8, "icoms_get_paths: Added path '%s' fast %d\n",value,fast); +#ifndef ENABLE_SERIAL + } +#endif /* If fast, try and identify it */ if (fast) { @@ -249,7 +255,7 @@ int icompaths_refresh_paths(icompaths *p) { if ((stat = RegCloseKey(sch)) != ERROR_SUCCESS) { a1logw(p->log, "icoms_get_paths: RegCloseKey failed with %d\n",stat); } -#endif /* ENABLE_SERIAL */ +#endif /* ENABLE_SERIAL || ENABLE_FAST_SERIAL */ /* Sort the COM keys so people don't get confused... */ /* Sort identified instruments ahead of unknown serial ports */ @@ -300,8 +306,9 @@ static void icoms_close_port(icoms *p) { #if defined(ENABLE_SERIAL) || defined(ENABLE_FAST_SERIAL) -static int icoms_ser_write(icoms *p, char *wbuf, double tout); -static int icoms_ser_read(icoms *p, char *rbuf, int bsize, char *tc, int ntc, double tout); +static int icoms_ser_write(icoms *p, char *wbuf, int nwch, double tout); +static int icoms_ser_read(icoms *p, char *rbuf, int bsize, int *bread, + char *tc, int ntc, double tout); #ifndef CBR_921600 # define CBR_921600 921600 @@ -383,7 +390,7 @@ word_length word) dcb.fOutxCtsFlow = FALSE; /* Not using Cts flow control */ dcb.fOutxDsrFlow = FALSE; /* Not using Dsr Flow control */ dcb.fDtrControl = DTR_CONTROL_ENABLE; /* Enable DTR during connection */ - dcb.fDsrSensitivity = FALSE; /* Not using Dsr Flow control */ + dcb.fDsrSensitivity = FALSE; /* Not using Dsr to ignore characters */ dcb.fTXContinueOnXoff = TRUE; /* */ dcb.fOutX = FALSE; /* No default Xon/Xoff flow control */ dcb.fInX = FALSE; /* No default Xon/Xoff flow control */ @@ -411,6 +418,11 @@ word_length word) dcb.fOutxCtsFlow = TRUE; dcb.fRtsControl = RTS_CONTROL_HANDSHAKE; break; + case fc_HardwareDTR: + /* Use DTR/DSR bi-directional flow control */ + dcb.fOutxDsrFlow = TRUE; + dcb.fDtrControl = DTR_CONTROL_HANDSHAKE; + break; default: break; } @@ -544,7 +556,8 @@ word_length word) static int icoms_ser_write( icoms *p, -char *wbuf, +char *wbuf, /* null terminated unless nwch > 0 */ +int nwch, /* if > 0, number of characters to write */ double tout) { COMMTIMEOUTS tmo; @@ -560,7 +573,10 @@ double tout) return rv; } - len = strlen(wbuf); + if (nwch != 0) + len = nwch; + else + len = strlen(wbuf); tout *= 1000.0; /* Timout in msec */ top = 20; /* Timeout period in msecs */ @@ -620,8 +636,9 @@ icoms_ser_read( icoms *p, char *rbuf, /* Buffer to store characters read */ int bsize, /* Buffer size */ -char *tc, /* Terminating characers, NULL for none */ -int ntc, /* Number of terminating characters seen */ +int *pbread, /* Bytes read (not including forced '\000') */ +char *tc, /* Terminating characers, NULL for none or char count mode */ +int ntc, /* Number of terminating characters or char count needed, if 0 use bsize */ double tout /* Time out in seconds */ ) { COMMTIMEOUTS tmo; @@ -630,6 +647,7 @@ double tout /* Time out in seconds */ long toc, i, top; /* Timout count, counter, timeout period */ char *rrbuf = rbuf; /* Start of return buffer */ DCB dcb; + int bread = 0; int rv = ICOM_OK; if (p->phandle == NULL) { @@ -639,13 +657,13 @@ double tout /* Time out in seconds */ } if (bsize < 3) { - a1loge(p->log, ICOM_SYS, "icoms_read: given too small a bufferi (%d)\n",bsize); + a1loge(p->log, ICOM_SYS, "icoms_read: given too small a buffer (%d)\n",bsize); p->lserr = rv = ICOM_SYS; return rv; } tout *= 1000.0; /* Timout in msec */ - bsize--; /* Allow space for null */ + bsize--; /* Allow space for forced final null */ top = 20; /* Timeout period in msecs */ toc = (int)(tout/top + 0.5); /* Number of timout periods in timeout */ @@ -664,8 +682,17 @@ double tout /* Time out in seconds */ return rv; } + if (tc == NULL) { /* no tc or char count mode */ + j = -1; + if (ntc > 0 && ntc < bsize) + bsize = ntc; /* Don't read more than ntc */ + } else { + j = 0; + } + j = (tc == NULL && ntc <= 0) ? -1 : 0; + /* Until data is all read or we time out */ - for (i = toc, j = 0; i > 0 && bsize > 1 && j < ntc ;) { + for (i = toc; i > 0 && bsize > 0 && j < ntc ;) { if (!ReadFile(p->phandle, rbuf, bsize, &rbytes, NULL)) { DWORD errs; if (!ClearCommError(p->phandle,&errs,NULL)) @@ -684,6 +711,7 @@ double tout /* Time out in seconds */ } else if (rbytes > 0) { /* Account for bytes done */ i = toc; bsize -= rbytes; + bread += rbytes; if (tc != NULL) { while(rbytes--) { /* Count termination characters */ char ch = *rbuf++, *tcp = tc; @@ -694,14 +722,20 @@ double tout /* Time out in seconds */ tcp++; } } - } else + } else { + if (ntc > 0) + j += rbytes; rbuf += rbytes; + } } } if (i <= 0) { /* timed out */ rv |= ICOM_TO; } *rbuf = '\000'; + if (pbread != NULL) + *pbread = bread; + a1logd(p->log, 8, "icoms_ser_read: returning '%s' ICOM err 0x%x\n",icoms_fix(rrbuf),rv); p->lserr = rv; diff --git a/spectro/icoms_ux.c b/spectro/icoms_ux.c index 3e49f3e..8fd1b3e 100644 --- a/spectro/icoms_ux.c +++ b/spectro/icoms_ux.c @@ -124,10 +124,15 @@ int icompaths_refresh_paths(icompaths *p) { if (strstr(pname, "usbserial") != NULL) fast = 1; +#ifndef ENABLE_SERIAL + if (fast) { /* Only add fast ports if !ENABLE_SERIAL */ +#endif /* Add the port to the list */ p->add_serial(p, pname, pname, fast); a1logd(p->log, 8, "icoms_get_paths: Added path '%s' fast %d\n",pname, fast); - +#ifndef ENABLE_SERIAL + } +#endif /* If fast, try and identify it */ if (fast) { icompath *path; @@ -218,7 +223,7 @@ int icompaths_refresh_paths(icompaths *p) { break; if (!( -#ifdef __FreeBSD__ +#if defined(__FreeBSD__) || defined(__OpenBSD__) /* This should match uart & USB devs. */ ( strncmp (de->d_name, "cua", 3) == 0 && strlen (de->d_name) < 7) @@ -268,9 +273,15 @@ int icompaths_refresh_paths(icompaths *p) { if (strncmp(de->d_name, "ttyUSB", 5) == 0) fast = 1; +#ifndef ENABLE_SERIAL + if (fast) { /* Only add fast ports if !ENABLE_SERIAL */ +#endif /* Add the path to the list */ p->add_serial(p, dpath, dpath, 0); a1logd(p->log, 8, "icoms_get_paths: Added path '%s' fast %d\n",dpath,fast); +#ifndef ENABLE_SERIAL + } +#endif free(dpath); /* If fast, try and identify it */ @@ -332,14 +343,18 @@ static void icoms_close_port(icoms *p) { #if defined(ENABLE_SERIAL) || defined(ENABLE_FAST_SERIAL) -static int icoms_ser_write(icoms *p, char *wbuf, double tout); -static int icoms_ser_read(icoms *p, char *rbuf, int bsize, char *tc, int ntc, double tout); +static int icoms_ser_write(icoms *p, char *wbuf, int nwch, double tout); +static int icoms_ser_read(icoms *p, char *rbuf, int bsize, int *bread, + char *tc, int ntc, double tout); #ifdef __APPLE__ # ifndef IOSSIOSPEED # define IOSSIOSPEED _IOW('T', 2, speed_t) # endif +#endif + +#if defined(__APPLE__) || defined(__OpenBSD__) # ifndef B921600 # define B921600 921600 # endif @@ -449,6 +464,17 @@ word_length word tio.c_cflag |= CRTS_IFLOW; #else tio.c_cflag |= CRTSCTS; +#endif + break; + case fc_HardwareDTR: + /* Use DTR/DSR bi-directional flow control */ +#ifdef __APPLE__ + tio.c_cflag |= CDSR_OFLOW; + tio.c_cflag |= CDTR_IFLOW; +#else +#ifdef CDTRDSR /* Hmm. Not all Linux's support this... */ + tio.c_cflag |= CDTRDSR; +#endif #endif break; default: @@ -600,7 +626,8 @@ word_length word static int icoms_ser_write( icoms *p, -char *wbuf, +char *wbuf, /* null terminated unless nwch > 0 */ +int nwch, /* if > 0, number of characters to write */ double tout ) { int rv, retrv = ICOM_OK; @@ -610,7 +637,6 @@ double tout int nfd = 1; /* Number of fd's to poll */ struct termios origs, news; - a1logd(p->log, 8, "icoms_ser_write: About to write '%s' ",icoms_fix(wbuf)); if (!p->is_open) { a1loge(p->log, ICOM_SYS, "icoms_ser_write: device not initialised\n"); p->lserr = rv = ICOM_SYS; @@ -623,8 +649,12 @@ double tout pa[0].revents = 0; /* Until timed out, aborted, or transmitted */ - len = strlen(wbuf); + if (nwch != 0) + len = nwch; + else + len = strlen(wbuf); tout *= 1000.0; /* Timout in msec */ + a1logd(p->log, 8, "icoms_ser_write: About to write %d bytes",len); top = 100; /* Timeout period in msecs */ toc = (int)(tout/top + 0.5); /* Number of timout periods in timeout */ @@ -674,8 +704,9 @@ icoms_ser_read( icoms *p, char *rbuf, /* Buffer to store characters read */ int bsize, /* Buffer size */ -char *tc, /* Terminating characers, NULL for none */ -int ntc, /* Number of terminating characters */ +int *pbread, /* Bytes read (not including forced '\000') */ +char *tc, /* Terminating characers, NULL for none or char count mode */ +int ntc, /* Number of terminating characters or char count needed, if 0 use bsize */ double tout /* Time out in seconds */ ) { int rv, retrv = ICOM_OK; @@ -685,6 +716,7 @@ double tout /* Time out in seconds */ int nfd = 1; /* Number of fd's to poll */ struct termios origs, news; char *rrbuf = rbuf; /* Start of return buffer */ + int bread = 0; if (!p->is_open) { a1loge(p->log, ICOM_SYS, "icoms_ser_read: device not initialised\n"); @@ -698,12 +730,14 @@ double tout /* Time out in seconds */ return rv; } + a1logd(p->log, 8, "icoms_ser_read: About to read buf %d, tc %p ntc %d tout %f",bsize,tc,ntc,tout); + /* Wait for serial input to have data */ pa[0].fd = p->fd; pa[0].events = POLLIN | POLLPRI; pa[0].revents = 0; - bsize--; /* Allow space for null */ + bsize--; /* Allow space for forced null */ tout *= 1000.0; /* Timout in msec */ top = 100; /* Timeout period in msecs */ @@ -711,11 +745,18 @@ double tout /* Time out in seconds */ if (toc < 1) toc = 1; + if (tc == NULL) { /* no tc or char count mode */ + j = -1; + if (ntc > 0 && ntc < bsize) + bsize = ntc; /* Don't read more than ntc */ + } else { + j = 0; + } /* Until data is all read, we time out, or the user aborts */ - for(i = toc, j = 0; i > 0 && bsize > 1 && j < ntc ;) { - + for (i = toc; i > 0 && bsize > 0 && j < ntc ;) { if (poll_x(pa, nfd, top) > 0) { if (pa[0].revents != 0) { + int btr; if (pa[0].revents != POLLIN && pa[0].revents != POLLPRI) { a1loge(p->log, ICOM_SYS, "icoms_ser_read: poll on serin returned " "unexpected value 0x%x",pa[0].revents); @@ -730,6 +771,7 @@ double tout /* Time out in seconds */ } else if (rbytes > 0) { i = toc; /* Reset time */ bsize -= rbytes; + bread += rbytes; if (tc != NULL) { while(rbytes--) { /* Count termination characters */ char ch = *rbuf++, *tcp = tc; @@ -740,8 +782,11 @@ double tout /* Time out in seconds */ tcp++; } } - } else + } else { + if (ntc > 0) + j += rbytes; rbuf += rbytes; + } } } } else { @@ -749,10 +794,12 @@ double tout /* Time out in seconds */ } } - *rbuf = '\000'; - if (i <= 0) { /* timed out */ + if (i <= 0) /* timed out */ retrv |= ICOM_TO; - } + + *rbuf = '\000'; + if (pbread != NULL) + *pbread = bread; a1logd(p->log, 8, "icoms_ser_read: returning '%s' ICOM err 0x%x\n",icoms_fix(rrbuf),retrv); diff --git a/spectro/ifiles b/spectro/ifiles index 717fcca..b2806f5 100644 --- a/spectro/ifiles +++ b/spectro/ifiles @@ -16,3 +16,4 @@ munki_imp.c hcfr.c colorhug.c specbos.c +kleink10.c diff --git a/spectro/illumread.c b/spectro/illumread.c index 7cc7eae..381f6b6 100644 --- a/spectro/illumread.c +++ b/spectro/illumread.c @@ -30,17 +30,21 @@ */ -#define DEBUG /* Save measurements and restore them to outname_X.sp */ - /* +/* + Test mode files restored/saved: + + outname_i.sp Illuminant spectrum + outname_r.sp Illuminant off paper spectrum + outname_p.sp Instrument measured paper reflectance spectrum - outname_i.sp Illuminant spectrum - outname_r.sp Illuminant off paper spectrum - outname_p.sp Instrument measured paper reflectance spectrum - outname_mpir.sp Measured paper under illuminant spectrum - outname_cpir.sp Computed paper under illuminant spectrum + Just saved: - */ + outname_mpir.sp Measured paper under illuminant spectrum + outname_cpir.sp Computed paper under illuminant spectrum + */ +#undef DEBUG /* Debug messages */ +#undef PLOT_FITTING /* Plot the fitting itterations */ #undef SHOWDXX /* Plot the best matched daylight as well */ #include @@ -59,7 +63,10 @@ #include "icoms.h" #include "instappsup.h" #include "plot.h" -#include "spyd2setup.h" /* Enable Spyder 2 access */ +#include "ui.h" +#ifdef ENABLE_USB +# include "spyd2.h" +#endif #include @@ -123,10 +130,15 @@ static double bfindfunc(void *adata, double pv[]) { double rv = 0.0; /* Add UV level to illuminant */ - b->ill = *b->i_sp; + b->ill = *b->i_sp; /* Structure copy */ xsp_setUV(&b->ill, b->i_sp, pv[0]); /* Extends ill range into UV */ - /* Update the conversion */ +#ifdef NEVER /* Plot the two reflectance spectra */ + printf("Black = Measured illum, Red = illum + %f UV\n",pv[0]); + xspect_plot(b->i_sp, &b->ill, NULL); +#endif + + /* Update the conversion to use observer illuminant with UV */ if (b->pap->update_fwa_custillum(b->pap, NULL, &b->ill) != 0) error ("Updating FWA compensation failed"); @@ -161,7 +173,13 @@ static double bfindfunc(void *adata, double pv[]) { /* if the case is unconstrained. */ rv += 0.1 * fabs(pv[0]); -//printf("~1 rev = %f (%f %f %f - %f %f %f) from %f %f\n",rv, b->lab0[0], b->lab0[1], b->lab0[2], b->lab1[0], b->lab1[1], b->lab1[2], pv[0], pv[1]); +#ifdef PLOT_FITTING /* Plot the two reflectance spectra */ + printf("rev = %f (%f %f %f - %f %f %f) from UV %f GA %f\n",rv, b->lab0[0], b->lab0[1], b->lab0[2], b->lab1[0], b->lab1[1], b->lab1[2], pv[0], pv[1]); + + printf("Black = Measured, Red = trial\n"); + xspect_plot(&b->srop, &b->cpsp, NULL); +#endif + return rv; } @@ -216,8 +234,6 @@ usage(char *diag, ...) { icompaths *icmps; fprintf(stderr,"Measure an illuminant, Version %s\n",ARGYLL_VERSION_STR); fprintf(stderr,"Author: Graeme W. Gill, licensed under the AGPL Version 3\n"); - if (setup_spyd2() == 2) - fprintf(stderr,"WARNING: This file contains a proprietary firmware image, and may not be freely distributed !\n"); if (diag != NULL) { va_list args; fprintf(stderr,"Diagnostic: "); @@ -237,7 +253,8 @@ usage(char *diag, ...) { for (i = 0; ; i++) { if (paths[i] == NULL) break; - if (paths[i]->itype == instSpyder2 && setup_spyd2() == 0) + if ((paths[i]->itype == instSpyder1 && setup_spyd2(0) == 0) + || (paths[i]->itype == instSpyder2 && setup_spyd2(1) == 0)) fprintf(stderr," %d = '%s' !! Disabled - no firmware !!\n",i+1,paths[i]->name); else fprintf(stderr," %d = '%s'\n",i+1,paths[i]->name); @@ -250,6 +267,8 @@ usage(char *diag, ...) { fprintf(stderr," -Y r Set refresh measurement mode\n"); fprintf(stderr," -Y R:rate Override measured refresh rate with rate Hz\n"); fprintf(stderr," -W n|h|x Override serial port flow control: n = none, h = HW, x = Xon/Xoff\n"); + fprintf(stderr," -T Test mode - restore & save measurements to\n"); + fprintf(stderr," *_i.sp, *_r.sp, *_p.sp, *_mpir.sp, *_cpir.sp files\n"); fprintf(stderr," -D [level] Print debug diagnostics to stderr\n"); fprintf(stderr," illuminant.sp File to save measurement to\n"); @@ -270,10 +289,10 @@ int main(int argc, char *argv[]) int refrmode = -1; /* -1 = default, = non-refresh mode, 1 = non-refresh mode */ double refrate = 0.0; /* 0.0 = default, > 0.0 = override refresh rate */ char outname[MAXNAMEL+1] = "\000"; /* Spectral output file name */ -#ifdef DEBUG - char tname[MAXNAMEL+11] = "\000", *tnp; - int rd_i = 0, rd_r = 0, rd_p = 0; -#endif + + int tmode = 0; /* Test mode */ + char tname[MAXNAMEL+11] = "\000", *tnp; /* Test mode file names */ + int rd_i = 0, rd_r = 0, rd_p = 0; /* Test mode flags */ icompaths *icmps = NULL; /* Ports to choose from */ int comno = 1; /* Specific port suggested by user */ @@ -300,7 +319,6 @@ int main(int argc, char *argv[]) set_exe_path(argv[0]); /* Set global exe_path and error_program */ check_if_not_interactive(); - setup_spyd2(); /* Load firware if available */ i_sp.spec_n = 0; r_sp.spec_n = 0; @@ -383,6 +401,9 @@ int main(int argc, char *argv[]) else usage(NULL); + } else if (argv[fa][1] == 'T') { + tmode = 1; + } else if (argv[fa][1] == 'D') { debug = 1; if (na != NULL && na[0] >= '0' && na[0] <= '9') { @@ -403,31 +424,31 @@ int main(int argc, char *argv[]) strncpy(outname,argv[fa++],MAXNAMEL-1); outname[MAXNAMEL-1] = '\000'; -#ifdef DEBUG - strcpy(tname, outname); - if ((tnp = strrchr(tname, '.')) == NULL) - tnp = tname + strlen(tname); - - /* Special debug */ - strcpy(tnp, "_i.sp"); - if (read_xspect(&i_sp, tname) == 0) { - rd_i = 1; - printf("(Found '%s' file and loaded it)\n",tname); - } - strcpy(tnp, "_r.sp"); - if (read_xspect(&r_sp, tname) == 0) { - rd_r = 1; - printf("(Found '%s' file and loaded it)\n",tname); - } - strcpy(tnp, "_p.sp"); - if (read_xspect(&p_sp, tname) == 0) { - rd_p = 1; - /* Should read instrument type from debug_p.sp !! */ - if (inst_illuminant(&insp, instI1Pro) != 0) /* Hack !! */ - error ("Instrument doesn't have an FWA illuminent"); - printf("(Found '%s' file and loaded it)\n",tname); + if (tmode) { + strcpy(tname, outname); + if ((tnp = strrchr(tname, '.')) == NULL) + tnp = tname + strlen(tname); + + /* Special debug */ + strcpy(tnp, "_i.sp"); + if (read_xspect(&i_sp, tname) == 0) { + rd_i = 1; + printf("(Found '%s' file and loaded it)\n",tname); + } + strcpy(tnp, "_r.sp"); + if (read_xspect(&r_sp, tname) == 0) { + rd_r = 1; + printf("(Found '%s' file and loaded it)\n",tname); + } + strcpy(tnp, "_p.sp"); + if (read_xspect(&p_sp, tname) == 0) { + rd_p = 1; + /* Should read instrument type from debug_p.sp !! */ + if (inst_illuminant(&insp, instI1Pro) != 0) /* Hack !! */ + error ("Instrument doesn't have an FWA illuminent"); + printf("(Found '%s' file and loaded it)\n",tname); + } } -#endif /* DEBUG */ /* Until the measurements are done, or we give up */ for (;;) { @@ -474,11 +495,13 @@ int main(int argc, char *argv[]) int ch; if (it == NULL) { + icompath *ipath; if (icmps == NULL) icmps = new_icompaths(g_log); /* Open the instrument */ - if ((it = new_inst(icmps->get_path(icmps, comno), 0, g_log, DUIH_FUNC_AND_CONTEXT)) == NULL) { + ipath = icmps->get_path(icmps, comno); + if ((it = new_inst(ipath, 0, g_log, DUIH_FUNC_AND_CONTEXT)) == NULL) { printf("!!! Unknown, inappropriate or no instrument detected !!!\n"); continue; } @@ -694,7 +717,7 @@ int main(int argc, char *argv[]) } } - ev = inst_handle_calibrate(it, inst_calt_needed, inst_calc_none, NULL, NULL); + ev = inst_handle_calibrate(it, inst_calt_needed, inst_calc_none, NULL, NULL, 0); if (ev != inst_ok) { /* Abort or fatal error */ printf("!!! Calibration failed with error :'%s' (%s) !!!\n", it->inst_interp_error(it, rv), it->interp_error(it, rv)); @@ -871,7 +894,7 @@ int main(int argc, char *argv[]) } else if ((rv & inst_mask) == inst_needs_cal) { inst_code ev; printf("\nIlluminant measure failed because instruments needs calibration.\n"); - ev = inst_handle_calibrate(it, inst_calt_needed, inst_calc_none, NULL, NULL); + ev = inst_handle_calibrate(it, inst_calt_needed, inst_calc_none, NULL, NULL, 0); continue; /* Deal with a bad sensor position */ @@ -900,20 +923,16 @@ int main(int argc, char *argv[]) if (c == '1') { i_sp = val.sp; -#ifdef DEBUG - if (rd_i == 0) { + if (tmode && rd_i == 0) { strcpy(tnp, "_i.sp"); write_xspect(tname,&i_sp); } -#endif } else if (c == '2') { r_sp = val.sp; -#ifdef DEBUG - if (rd_r == 0) { + if (tmode && rd_r == 0) { strcpy(tnp, "_r.sp"); write_xspect(tname,&r_sp); } -#endif } else if (c == '3') { p_sp = val.sp; @@ -921,13 +940,11 @@ int main(int argc, char *argv[]) if (inst_illuminant(&insp, itype) != 0) error ("Instrument doesn't have an FWA illuminent"); -#ifdef DEBUG - if (rd_p == 0) { + if (tmode && rd_p == 0) { /* Should save instrument type/instrument illuminant spectrum !!! */ strcpy(tnp, "_p.sp"); write_xspect(tname,&p_sp); } -#endif } if (pspec) { @@ -982,7 +999,8 @@ int main(int argc, char *argv[]) for (i = 0; ; i++) { if (paths[i] == NULL) break; - if (paths[i]->itype == instSpyder2 && setup_spyd2() == 0) + if ((paths[i]->itype == instSpyder1 && setup_spyd2(0) == 0) + || (paths[i]->itype == instSpyder2 && setup_spyd2(1) == 0)) fprintf(stderr," %d = '%s' !! Disabled - no firmware !!\n",i+1,paths[i]->name); else fprintf(stderr," %d = '%s'\n",i+1,paths[i]->name); @@ -1111,12 +1129,13 @@ int main(int argc, char *argv[]) printf("\nWriting file '%s' failed\n",outname); else printf("\nWriting file '%s' succeeded\n",outname); -#ifdef DEBUG - strcpy(tnp, "_mpir.sp"); // Measured paper under illuminant spectrum - write_xspect(tname,&bf.srop); - strcpy(tnp, "_cpir.sp"); // Computed paper under illuminant spectrum - write_xspect(tname,&bf.cpsp); -#endif + + if (tmode) { + strcpy(tnp, "_mpir.sp"); // Measured paper under illuminant spectrum + write_xspect(tname,&bf.srop); + strcpy(tnp, "_cpir.sp"); // Computed paper under illuminant spectrum + write_xspect(tname,&bf.cpsp); + } } /* Plot the result */ diff --git a/spectro/inst.c b/spectro/inst.c index 2d3adc3..9aba1bd 100644 --- a/spectro/inst.c +++ b/spectro/inst.c @@ -46,14 +46,14 @@ #endif /* !SALONEINSTLIB */ #include "numsup.h" #include "xspect.h" -#include "ccmx.h" -#include "ccss.h" #include "conv.h" #include "insttypes.h" #include "icoms.h" #include "inst.h" #include "insttypeinst.h" +#include "ccmx.h" +#include "ccss.h" #include "sort.h" #if defined(ENABLE_FAST_SERIAL) @@ -167,6 +167,24 @@ int ix /* index into the inst_disptypesel[] */ return inst_unsupported; } +/* Get the disptech and other corresponding info for the current */ +/* selected display type. Returns disptype_unknown by default. */ +/* Because refrmode can be overridden, it may not match the refrmode */ +/* of the dtech. (Pointers may be NULL if not needed) */ +static inst_code get_disptechi( +inst *pp, +disptech *dtech, +int *refrmode, +int *cbid) { + if (dtech != NULL) + *dtech = disptech_unknown; + if (refrmode != NULL) + *refrmode = disptech_get_id(disptech_unknown)->refr; + if (cbid != NULL) + *cbid = 0; + return inst_ok; +} + /* Get a status or set or get an option (default implementation) */ inst_code inst_get_set_opt_def( inst *p, @@ -359,16 +377,25 @@ char id[CALIDLEN]) { /* Condition identifier (ie. white reference ID, filter ID) } /* Measure a display update delay. It is assumed that a */ -/* White to black change has been made to the displayed color, */ +/* black to white change has been made to the displayed color, */ /* and this will measure the time it took for the update to */ +/* (It is assumed that white_change() will be called at the time the patch */ +/* changes color.) */ /* be noticed by the instrument, up to 1.0 seconds. */ /* inst_misread will be returned on failure to find a transition. */ static inst_code meas_delay( inst *p, -int *msecdelay) { /* Return the number of msec */ +int *pdispmsec, +int *pinstmsec) { return inst_unsupported; } +/* Call used by other thread to timestamp the transition. */ +static inst_code white_change( +struct _inst *p, int init) { + return inst_unsupported; +} + \ /* Return the last calibrated refresh rate in Hz. Returns: */ /* inst_unsupported - if this instrument doesn't suport a refresh mode */ /* or is unable to retrieve the refresh rate */ @@ -407,6 +434,8 @@ char *filtername) { /* File containing compensating filter */ /* To remove the matrix, pass NULL for the matrix */ static inst_code col_cor_mat( struct _inst *p, +disptech dtech, /* Use disptech_unknown if not known */ +int cbid, /* Calibration display type base ID needed, 1 if unknown */ double mtx[3][3]) { /* XYZ matrix */ return inst_unsupported; } @@ -417,6 +446,7 @@ double mtx[3][3]) { /* XYZ matrix */ /* To set calibration back to default, pass NULL for ccss. */ static inst_code col_cal_spec_set( inst *pp, +disptech dtech, /* Use disptech_unknown if not known */ xspect *sets, int no_sets) { return inst_unsupported; @@ -487,6 +517,8 @@ static char *inst_interp_error(inst *p, inst_code ec) { return "Bad Parameter Value"; case inst_hardware_fail: return "Hardware Failure"; + case inst_system_error: + return "Operating System Error"; case inst_other_error: return "Non-specific error"; } @@ -524,6 +556,11 @@ void *cntx /* Context for callback */ icoms *icom; inst *p = NULL; + if (path == NULL) { + a1logd(log, 2, "new_inst: got NULL path\n"); + return NULL; + } + a1logd(log, 2, "new_inst: called with path '%s'\n",path->name); if ((icom = new_icoms(path, log)) == NULL) { @@ -536,8 +573,9 @@ void *cntx /* Context for callback */ itype = icom->itype; /* Instrument type if its known from usb/hid */ #if defined(ENABLE_FAST_SERIAL) - if (itype == instUnknown && !nocoms && icom->fast) + if (itype == instUnknown && !nocoms && icom->fast) { itype = fast_ser_inst_type(icom, 1, uicallback, cntx); /* Else type from serial */ + } #endif /* ENABLE_FAST_SERIAL */ #if defined(ENABLE_SERIAL) @@ -569,6 +607,8 @@ void *cntx /* Context for callback */ if (itype == instSpecbos1201 || itype == instSpecbos) p = (inst *)new_specbos(icom, itype); + if (itype == instKleinK10) + p = (inst *)new_kleink10(icom, itype); #endif /* ENABLE_SERIAL */ #ifdef ENABLE_USB @@ -588,19 +628,26 @@ void *cntx /* Context for callback */ p = (inst *)new_i1pro(icom, itype); else if (itype == instColorMunki) p = (inst *)new_munki(icom, itype); - else if (itype == instHCFR) - p = (inst *)new_hcfr(icom, itype); + else if (itype == instSpyder1) + p = (inst *)new_spyd2(icom, itype); else if (itype == instSpyder2) p = (inst *)new_spyd2(icom, itype); else if (itype == instSpyder3) p = (inst *)new_spyd2(icom, itype); else if (itype == instSpyder4) p = (inst *)new_spyd2(icom, itype); + else if (itype == instSpyder5) + p = (inst *)new_spyd2(icom, itype); else if (itype == instHuey) p = (inst *)new_huey(icom, itype); else if (itype == instSmile) p = (inst *)new_i1disp(icom, itype); - else if (itype == instColorHug) + else if (itype == instEX1) + p = (inst *)new_ex1(icom, itype); + else if (itype == instHCFR) + p = (inst *)new_hcfr(icom, itype); + else if (itype == instColorHug + || itype == instColorHug2) p = (inst *)new_colorhug(icom, itype); #endif /* ENABLE_USB */ @@ -632,6 +679,8 @@ void *cntx /* Context for callback */ p->get_disptypesel = get_disptypesel; if (p->set_disptype == NULL) p->set_disptype = set_disptype; + if (p->get_disptechi == NULL) + p->get_disptechi = get_disptechi; if (p->get_set_opt == NULL) p->get_set_opt = get_set_opt; if (p->read_chart == NULL) @@ -666,6 +715,8 @@ void *cntx /* Context for callback */ p->calibrate = calibrate; if (p->meas_delay == NULL) p->meas_delay = meas_delay; + if (p->white_change == NULL) + p->white_change = white_change; if (p->get_refr_rate == NULL) p->get_refr_rate = get_refr_rate; if (p->set_refr_rate == NULL) @@ -696,59 +747,6 @@ void *cntx /* Context for callback */ } /* --------------------------------------------------- */ -/* Display type list support */ - -/* Default display type UI selector characters: - - g Generic - n Non-refresh (Generic) - r Refresh (Generic) - - c CRT - l LCD (Generic or CCFL Backlight) - f LCD, CCFL Backlight - b LCD, RGB LED Backlight - L LCD, Wide Gamut, CCFL Backlight - B LCD, Wide Gamut, RGB LED Backlight - e LCD, White LED Backlight - o OLED - a AMOLED - p Projector (Generic) - m Plasma - - F Factory base calibration - R Raw sensor values - */ - -/* Default display technology strings: - - "Color Matching Function" - "Custom" - "CRT" - "LCD CCFL IPS" - "LCD CCFL VPA" - "LCD CCFL TFT" - "LCD CCFL Wide Gamut IPS" - "LCD CCFL Wide Gamut VPA" - "LCD CCFL Wide Gamut TFT" - "LCD White LED IPS" - "LCD White LED VPA" - "LCD White LED TFT" - "LCD RGB LED IPS" - "LCD RGB LED VPA" - "LCD RGB LED TFT" - "LED OLED" - "LED AMOLED" - "Plasma" - "LCD RG Phosphor" - "Projector RGB Filter Wheel" - "Projector RGBW Filter Wheel" - "Projector RGBCMY Filter Wheel" - "Projector" - "Unknown" - - */ - /* Free a display type list */ void inst_del_disptype_list(inst_disptypesel *list, int no) { @@ -789,6 +787,7 @@ static inst_disptypesel *expand_dlist(inst_disptypesel *list, int nlist, int *na list[nlist].desc[0] = '\000'; list[nlist].refr = 0; list[nlist].ix = 0; + list[nlist].cc_cbid = 0; list[nlist].path = NULL; list[nlist].sets = NULL; list[nlist].no_sets = 0; @@ -808,49 +807,9 @@ static inst_disptypesel *expand_dlist(inst_disptypesel *list, int nlist, int *na We treat the first selector as more important than any aliases that come after it, so we need to do two passes to resolve what gets used. -*/ - -/* Set the selection characters */ -/* return NZ if we have run out */ -/* If flag == 0, deal with all selectors */ -/* If flag == 1, deal with just primary selectors */ -/* If flag == 2, deal with just secondary selectors */ -static int set_sel(int flag, char *sel, char *usels, int *k, char *asels) { - char *d, *s, i; - - /* First remove any used chars from selector */ - for (i = 0, d = s = sel; *s != '\000'; s++, i++) { - if ((flag == 2 && i == 0) /* Ignore and keep primary selector */ - || (flag == 1 && i == 1)) { /* Ignore and keep secondary selectors */ - *d++ = *s; - continue; - } - if (usels[*s] == 0) { /* If selector is not currently used */ - *d++ = *s; - usels[*s] = 1; - } - } - *d = '\000'; - - /* Add a selector if we need one */ - if (sel[0] == '\000') { - - /* Locate the next unused selector */ - for (;;) { - if (asels[*k] == '\000') /* Run out of selectors */ - return 1; - if (usels[*k] == 0) - break; - (*k)++; - } - sel[0] = asels[*k]; - sel[1] = '\000'; - usels[sel[0]] = 1; - (*k)++; - } - return 0; -} + Use disptechs_set_sel() utility function to some of the work. +*/ /* Create the display type list */ inst_code inst_creat_disptype_list(inst *p, @@ -883,7 +842,7 @@ int doccmx /* Add matching installed ccmx files */ list[nlist-1] = sdtlist[i]; /* Struct copy */ - if (set_sel(1, list[nlist-1].sel, usels, &k, asels)) { + if (disptechs_set_sel(2, list[nlist-1].sel, usels, &k, asels)) { a1loge(p->log, 1, "inst_creat_disptype_list run out of selectors\n"); break; } @@ -902,22 +861,24 @@ int doccmx /* Add matching installed ccmx files */ if ((list = expand_dlist(list, ++nlist, &nalist)) == NULL) return inst_internal_error; - list[nlist-1].flags = inst_dtflags_ccss; + list[nlist-1].flags = inst_dtflags_ccss | inst_dtflags_ld | inst_dtflags_wr; if (ss_list[i].sel != NULL) { strncpy(list[nlist-1].sel, ss_list[i].sel, INST_DTYPE_SEL_LEN); list[nlist-1].sel[INST_DTYPE_SEL_LEN-1] = '\000'; } - if (set_sel(1, list[nlist-1].sel, usels, &k, asels)) { + if (disptechs_set_sel(2, list[nlist-1].sel, usels, &k, asels)) { a1loge(p->log, 1, "inst_creat_disptype_list run out of selectors\n"); break; } strncpy(list[nlist-1].desc, ss_list[i].desc, INST_DTYPE_DESC_LEN); list[nlist-1].desc[INST_DTYPE_DESC_LEN-1] = '\000'; + list[nlist-1].dtech = ss_list[i].dtech; list[nlist-1].refr = ss_list[i].refr; list[nlist-1].ix = 0; list[nlist-1].path = ss_list[i].path; ss_list[i].path = NULL; + list[nlist-1].cbid = 0; list[nlist-1].sets = ss_list[i].sets; ss_list[i].sets = NULL; list[nlist-1].no_sets = ss_list[i].no_sets; ss_list[i].no_sets = 0; } @@ -928,49 +889,56 @@ int doccmx /* Add matching installed ccmx files */ iccmx *ss_list; /* Just ccmx's for this instrument */ - if ((ss_list = list_iccmx(inst_name(p->itype), NULL)) == NULL) { + if ((ss_list = list_iccmx(p->itype, NULL)) == NULL) { free(list); return inst_internal_error; } for (i = 0; ss_list[i].path != NULL; i++) { - /* Check that we can find the matching base calibation */ + /* Check that there is a matching base calibation */ for (j = 0; j < nlist; j++) { - if (list[j].cbid == ss_list[i].cbid) + if (ss_list[i].cc_cbid != 0 + && list[j].cbid == ss_list[i].cc_cbid) break; } if (j >= nlist) { - a1loge(p->log, 1, "inst_creat_disptype_list can't find cbid %d for '%s'\n",list[j].cbid, list[j].path); + a1loge(p->log, 1, "inst_creat_disptype_list can't find cbid %d for '%s'\n",ss_list[i].cc_cbid, ss_list[i].path); continue; } if ((list = expand_dlist(list, ++nlist, &nalist)) == NULL) return inst_internal_error; - list[nlist-1].flags = inst_dtflags_ccmx; + list[nlist-1].flags = inst_dtflags_ccmx | inst_dtflags_ld | inst_dtflags_wr; if (ss_list[i].sel != NULL) { strncpy(list[nlist-1].sel, ss_list[i].sel, INST_DTYPE_SEL_LEN); list[nlist-1].sel[INST_DTYPE_SEL_LEN-1] = '\000'; } - if (set_sel(1, list[nlist-1].sel, usels, &k, asels)) { + if (disptechs_set_sel(2, list[nlist-1].sel, usels, &k, asels)) { a1loge(p->log, 1, "inst_creat_disptype_list run out of selectors\n"); break; } strncpy(list[nlist-1].desc, ss_list[i].desc, INST_DTYPE_DESC_LEN); list[nlist-1].desc[INST_DTYPE_DESC_LEN-1] = '\000'; + list[nlist-1].dtech = ss_list[i].dtech; list[nlist-1].refr = ss_list[i].refr; list[nlist-1].ix = list[j].ix; /* Copy underlying cal selection from base */ list[nlist-1].path = ss_list[i].path; ss_list[i].path = NULL; + list[nlist-1].cbid = 0; + list[nlist-1].cc_cbid = ss_list[i].cc_cbid; icmCpy3x3(list[nlist-1].mat, ss_list[i].mat); } } - /* Verify or delete any secondary selectors from the list */ - for (i = 0; i < nlist; i++) { - set_sel(2, list[i].sel, usels, &k, asels); - } + /* Create needed selectors */ + for (i = 0; i < nlist; i++) + disptechs_set_sel(4, list[i].sel, usels, &k, asels); + + /* Verify or delete any secondary selectors */ + for (i = 0; i < nlist; i++) + disptechs_set_sel(3, list[i].sel, usels, &k, asels); if (pndtlist != NULL) *pndtlist = nlist; @@ -984,11 +952,11 @@ int doccmx /* Add matching installed ccmx files */ /* CCMX location support */ /* return a list of installed ccmx files. */ -/* if inst != NULL, return those that match the given instrument. */ +/* if itype != instUnknown, return those that match the given instrument. */ /* The list is sorted by description and terminated by a NULL entry. */ /* If no is != NULL, return the number in the list */ /* Return NULL and -1 if there is a malloc error */ -iccmx *list_iccmx(char *inst, int *no) { +iccmx *list_iccmx(instType itype, int *no) { int i, j; iccmx *rv; @@ -1011,8 +979,9 @@ iccmx *list_iccmx(char *inst, int *no) { ccmx *cs; int len; char *pp; + disptech dtech; char *tech, *disp; - int cbid, refr; + int cc_cbid, refr; if ((cs = new_ccmx()) == NULL) { a1loge(g_log, 1, "list_iccmx: new_ccmx failed\n"); @@ -1030,7 +999,7 @@ iccmx *list_iccmx(char *inst, int *no) { } /* Skip any that don't match */ - if (inst != NULL && cs->inst != NULL && strcmp(inst, cs->inst) != 0) + if (itype != instUnknown && cs->inst != NULL && inst_enum(cs->inst) != itype) continue; a1logd(g_log, 5, "Reading '%s'\n",paths[i]); @@ -1038,7 +1007,8 @@ iccmx *list_iccmx(char *inst, int *no) { tech = ""; if ((disp = cs->disp) == NULL) disp = ""; - cbid = cs->cbid; + cc_cbid = cs->cc_cbid; + dtech = cs->dtech; refr = cs->refrmode; len = strlen(tech) + strlen(disp) + 4; if ((pp = malloc(len)) == NULL) { @@ -1071,7 +1041,8 @@ iccmx *list_iccmx(char *inst, int *no) { strcat(pp, disp); strcat(pp, ")"); rv[j].desc = pp; - rv[j].cbid = cbid; + rv[j].cc_cbid = cc_cbid; + rv[j].dtech = dtech; rv[j].refr = refr; rv[j].sel = cs->sel; cs->sel = NULL; icmCpy3x3(rv[j].mat, cs->matrix); @@ -1081,7 +1052,8 @@ iccmx *list_iccmx(char *inst, int *no) { xdg_free(paths, npaths); rv[j].path = NULL; rv[j].desc = NULL; - rv[j].cbid = 0; + rv[j].cc_cbid = 0; + rv[j].dtech = disptech_unknown; rv[j].refr = -1; rv[j].sel = NULL; if (no != NULL) @@ -1142,6 +1114,7 @@ iccss *list_iccss(int *no) { ccss *cs; int len; char *pp; + disptech dtech; char *tech, *disp; int refr; @@ -1165,6 +1138,7 @@ iccss *list_iccss(int *no) { tech = ""; if ((disp = cs->disp) == NULL) disp = ""; + dtech = cs->dtech; refr = cs->refrmode; len = strlen(tech) + strlen(disp) + 4; if ((pp = malloc(len)) == NULL) { @@ -1197,6 +1171,7 @@ iccss *list_iccss(int *no) { strcat(pp, disp); strcat(pp, ")"); rv[j].desc = pp; + rv[j].dtech = dtech; rv[j].refr = refr; rv[j].sel = cs->sel; cs->sel = NULL; rv[j].sets = cs->samples; cs->samples = NULL; @@ -1207,6 +1182,7 @@ iccss *list_iccss(int *no) { xdg_free(paths, npaths); rv[j].path = NULL; rv[j].desc = NULL; + rv[j].dtech = disptech_unknown; rv[j].refr = -1; rv[j].sel = NULL; rv[j].sets = NULL; @@ -1258,7 +1234,7 @@ instType fast_ser_inst_type( ) { instType rv = instUnknown; char buf[100]; - baud_rate brt[] = { baud_921600, baud_115200, baud_38400, baud_nc }; + baud_rate brt[] = { baud_921600, baud_115200, baud_38400, baud_9600, baud_nc }; unsigned int etime; unsigned int i; int se, len; @@ -1287,36 +1263,64 @@ instType fast_ser_inst_type( // a1logd(p->log, 5, "brt = %d\n",brt[i]); - /* See if it's a JETI specbos */ - if ((se = p->write_read(p, "*idn?\r", buf, 100, "\r", 1, 0.050)) != inst_ok) { - /* Check for user abort */ - if (uicallback != NULL) { - inst_code ev; - if ((ev = uicallback(cntx, inst_negcoms)) == inst_user_abort) { - a1logd(p->log, 5, "fser_inst_type: User aborted\n"); - return instUnknown; + if (brt[i] == baud_9600) { + /* See if it's a Klein K10 */ + + if ((se = p->write_read(p, "P0\r", 0, buf, 100, NULL, ">", 1, 0.100)) != inst_ok) { + /* Check for user abort */ + if (uicallback != NULL) { + inst_code ev; + if ((ev = uicallback(cntx, inst_negcoms)) == inst_user_abort) { + a1logd(p->log, 5, "fser_inst_type: User aborted\n"); + return instUnknown; + } } + continue; + } + len = strlen(buf); + + a1logd(p->log, 5, "len = %d\n",len); + + /* Is this a Klein K1/K8/K10 response ? */ + if (strncmp(buf, "P0K-1 ", 6) == 0 + || strncmp(buf, "P0K-8 ", 6) == 0 + || strncmp(buf, "P0K-10", 6) == 0 + || strncmp(buf, "P0KV-10", 7) == 0) { + rv = instKleinK10; + break; + } + } else { + /* See if it's a JETI specbos */ + if ((se = p->write_read(p, "*idn?\r", 0, buf, 100, NULL, "\r", 1, 0.100)) != inst_ok) { + /* Check for user abort */ + if (uicallback != NULL) { + inst_code ev; + if ((ev = uicallback(cntx, inst_negcoms)) == inst_user_abort) { + a1logd(p->log, 5, "fser_inst_type: User aborted\n"); + return instUnknown; + } + } + continue; + } + len = strlen(buf); + + a1logd(p->log, 5, "len = %d\n",len); + + /* JETI specbos returns "JETI_SBXXXX", where XXXX is the instrument type, */ + /* except for the 1201 which returns "SB05" */ + + /* Is this a JETI specbos 1201 response ? */ + if (strncmp(buf, "SB05", 4) == 0) { +// a1logd(p->log, 5, "specbos1201\n"); + rv = instSpecbos1201; + break; + } + /* Is this a JETI specbos XXXX response ? */ + if (len >= 11 && strncmp(buf, "JETI_SB", 7) == 0) { +// a1logd(p->log, 5, "specbos\n"); + rv = instSpecbos; + break; } - continue; - } - len = strlen(buf); - - a1logd(p->log, 5, "len = %d\n",len); - - /* JETI specbos returns "JETI_SBXXXX", where XXXX is the instrument type, */ - /* except for the 1201 which returns "SB05" */ - - /* Is this a JETI specbos 1201 response ? */ - if (strncmp(buf, "SB05", 4) == 0) { -// a1logd(p->log, 5, "specbos1201\n"); - rv = instSpecbos1201; - break; - } - /* Is this a JETI specbos XXXX response ? */ - if (len >= 11 && strncmp(buf, "JETI_SB", 7) == 0) { -// a1logd(p->log, 5, "specbos\n"); - rv = instSpecbos; - break; } } @@ -1357,7 +1361,7 @@ static instType ser_inst_type( baud_600, baud_300, baud_110, baud_nc }; unsigned int etime; unsigned int bi, i; - int se, len; + int se, len, bread; int xrite = 0; int ss = 0; int so = 0; @@ -1385,7 +1389,8 @@ static instType ser_inst_type( } // a1logd(p->log, 5, "brt = %d\n",brt[i]); - if ((se = p->write_read(p, ";D024\r\n", buf, 100, "\r", 1, 0.5)) != inst_ok) { + bread = 0; + if ((se = p->write_read(p, ";D024\r\n", 0, buf, 100, &bread, "\r", 1, 0.5)) != inst_ok) { /* Check for user abort */ if (uicallback != NULL) { inst_code ev; @@ -1394,7 +1399,8 @@ static instType ser_inst_type( return instUnknown; } } - continue; + if (bread == 0) + continue; } len = strlen(buf); @@ -1439,7 +1445,7 @@ static instType ser_inst_type( /* SpectroScan */ if (ss) { rv = instSpectroScan; - if ((se = p->write_read(p, ";D030\r\n", buf, 100, "\n", 1, 1.5)) == 0) { + if ((se = p->write_read(p, ";D030\r\n", 0, buf, 100, NULL, "\n", 1, 1.5)) == 0) { if (strlen(buf) >= 41) { hex2bin(&buf[5], 12); // a1logd(p->log, 5, "spectroscan type = '%s'\n",buf); @@ -1451,7 +1457,7 @@ static instType ser_inst_type( if (xrite) { /* Get the X-Rite model and version number */ - if ((se = p->write_read(p, "SV\r\n", buf, 100, ">", 1, 2.5)) != 0) + if ((se = p->write_read(p, "SV\r\n", 0, buf, 100, NULL, ">", 1, 2.5)) != 0) return instUnknown; if (strlen(buf) >= 12) { @@ -1509,6 +1515,87 @@ static void hex2bin(char *buf, int len) { #endif /* ENABLE_SERIAL */ +/* ============================================================= */ +/* inst_mode persistent storage support */ + +/* Table listing and relating masks to symbols. */ +/* Need to keep this in sync with inst.h */ +struct { + int mode; /* Mode bits */ + char *sym; /* 4 character symbol */ +} inst_mode_sym[] = { + { inst_mode_reflection, inst_mode_reflection_sym }, + { inst_mode_s_reflection, inst_mode_s_reflection_sym }, + { inst_mode_transmission, inst_mode_transmission_sym }, + { inst_mode_emission, inst_mode_emission_sym }, + + { inst_mode_spot, inst_mode_spot_sym }, + { inst_mode_strip, inst_mode_strip_sym }, + { inst_mode_xy, inst_mode_xy_sym }, + { inst_mode_chart, inst_mode_chart_sym }, + { inst_mode_ambient, inst_mode_ambient_sym }, + { inst_mode_ambient_flash, inst_mode_ambient_flash_sym }, + { inst_mode_tele, inst_mode_tele_sym }, + + { inst_mode_emis_nonadaptive, inst_mode_emis_nonadaptive_sys }, + { inst_mode_ref_uv, inst_mode_ref_uv_sym }, + { inst_mode_emis_refresh_ovd, inst_mode_emis_refresh_ovd_sym }, + { inst_mode_emis_norefresh_ovd, inst_mode_emis_norefresh_ovd_sym }, + + { inst_mode_colorimeter, inst_mode_colorimeter_sym }, + { inst_mode_spectral, inst_mode_spectral_sym }, + { inst_mode_highres, inst_mode_highres_sym }, + + { inst_mode_calibration, inst_mode_calibration_sym }, + + { 0, NULL } +}; + +/* Return a string with a symbolic encoding of the mode flags */ +void inst_mode_to_sym(char sym[MAX_INST_MODE_SYM_SZ], inst_mode mode) { + int i; + char *cp = sym; + + for (i = 0; inst_mode_sym[i].mode != 0; i++) { + if (mode & inst_mode_sym[i].mode) { + if (cp != sym) + *cp++ = '_'; + strncpy(cp, inst_mode_sym[i].sym, 4); + cp += 4; + } + } + *cp++ = '\000'; +} + +/* Return a set of mode flags that correspondf to the symbolic encoding */ +/* Return nz if a symbol wasn't recognized */ +int sym_to_inst_mode(inst_mode *mode, const char *sym) { + int i; + const char *cp = sym; + int rv = 0; + + for (*mode = 0;;) { + if (cp[0] == '\000' || cp[1] == '\000' || cp[2] == '\000' || cp[3] == '\000') + break; + + for (i = 0; inst_mode_sym[i].mode != 0; i++) { + if (strncmp(inst_mode_sym[i].sym, cp, 4) == 0) { + *mode |= inst_mode_sym[i].mode; + break; + } + } + if (inst_mode_sym[i].mode == 0) + rv = 1; + + cp += 4; + + if (*cp == '_') + cp++; + } + + return rv; +} + diff --git a/spectro/inst.h b/spectro/inst.h index d69a37f..a4184d4 100644 --- a/spectro/inst.h +++ b/spectro/inst.h @@ -42,6 +42,7 @@ */ #include "insttypes.h" /* libinst Includes this functionality */ +#include "disptechs.h" /* libinst Includes this functionality */ #include "icoms.h" /* libinst Includes this functionality */ #include "conv.h" @@ -70,8 +71,8 @@ typedef enum { /* XYZ units, Spectral units */ inst_mrt_none = 0, /* Not set */ inst_mrt_emission = 1, /* cd/m^2, mW/(m^2.sr.nm) */ inst_mrt_ambient = 2, /* Lux mW/(m^2.nm) */ - inst_mrt_emission_flash = 3, /* cd/(m^2.s), mW/(m^2.sr.nm.s) */ - inst_mrt_ambient_flash = 4, /* Lux/s mW/(m^2.nm.s) */ + inst_mrt_emission_flash = 3, /* cd.s/m^2, mW.s/(m^2.sr.nm) */ + inst_mrt_ambient_flash = 4, /* Lux.s mW.s/(m^2.nm) */ inst_mrt_reflective = 5, /* %, %/nm */ inst_mrt_transmissive = 6, /* %, %/nm */ inst_mrt_frequency = 7 /* Hz */ @@ -123,77 +124,100 @@ typedef enum { inst_unexpected_reply = 0x140000, /* Unexpected Reply */ inst_wrong_setup = 0x150000, /* Setup is wrong or conflicting */ inst_hardware_fail = 0x160000, /* Hardware failure */ - inst_bad_parameter = 0x170000, /* Bad parameter value */ - inst_other_error = 0x180000, /* Some other error */ + inst_system_error = 0x170000, /* System call (ie malloc) fail */ + inst_bad_parameter = 0x180000, /* Bad parameter value */ + inst_other_error = 0x190000, /* Some other error */ inst_mask = 0xff0000, /* inst_code mask value */ inst_imask = 0x00ffff /* instrument specific mask value */ } inst_code; + +/* + possible UV modes: + + Do the reflective measurement with UV rather than normal illuminant + [ Should this be reflectivity against 'A', or absolute ?? ] + (ie. spot, strip, xy or chart). inst_mode_ref_uv + + Do a white & UV measurement at the start of each strip reading. + Return result with special call after each strip read. + inst_mode_ref_uv_strip_1 + + Do a dual white & UV measurement + [ Can do in one hit for spot, but how should two strip passes be handled ? + ie. two separate strip reads of phase 1 & then 2 ? ] + (ie. spot, strip, xy or chart). inst_mode_ref_uv_2pass + + Get normal illuminant spectrum. + + Get UV spectrum. + + get_meas_illum_spectrum(mode); + */ + /* Instrument capabilities & modes */ /* Note that due to the binary combinations, capabilities is not definititive */ /* as to valid modes. check_mode() is definitive. */ +/* #defines are for saving modes in a version independent way. */ +/* Note :- update inst_mode_sym[] table in inst.c if anything here is changed. */ typedef enum { inst_mode_none = 0x00000000, /* No capability or mode */ /* Mode of light measurement */ inst_mode_reflection = 0x00000001, /* General reflection mode */ +# define inst_mode_reflection_sym "REFL" inst_mode_s_reflection = 0x00000002, /* General saved reflection mode */ +# define inst_mode_s_reflection_sym "SRFL" inst_mode_transmission = 0x00000004, /* General transmission mode */ +# define inst_mode_transmission_sym "TRAN" inst_mode_emission = 0x00000008, /* General emission mode */ +# define inst_mode_emission_sym "EMIS" inst_mode_illum_mask = 0x0000000f, /* Mask of sample illumination sub mode */ /* Access mode of measurement */ inst_mode_spot = 0x00000010, /* General spot measurement mode */ +# define inst_mode_spot_sym "SPOT" inst_mode_strip = 0x00000020, /* General strip measurement mode */ +# define inst_mode_strip_sym "STRP" inst_mode_xy = 0x00000040, /* General X-Y measurement mode */ +# define inst_mode_xy_sym "CHXY" inst_mode_chart = 0x00000080, /* General chart measurement mode */ +# define inst_mode_chart_sym "CHRT" inst_mode_ambient = 0x00000100, /* General ambient measurement mode */ +# define inst_mode_ambient_sym "AMBI" inst_mode_ambient_flash = 0x00000200, /* General ambient flash measurement mode */ +# define inst_mode_ambient_flash_sym "ABFL" inst_mode_tele = 0x00000400, /* General telephoto measurement mode */ +# define inst_mode_tele_sym "TELE" // Hmm. Should there be a tele_flash mode ???? inst_mode_sub_mask = 0x000007f0, /* Mask of sub-mode */ /* Basic mode */ inst_mode_basic_mask = inst_mode_illum_mask | inst_mode_sub_mask, -/* - possible UV modes: - - Do the reflective measurement with UV rather than normal illuminant - [ Should this be reflectivity against 'A', or absolute ?? ] - (ie. spot, strip, xy or chart). inst_mode_ref_uv - - Do a white & UV measurement at the start of each strip reading. - Return result with special call after each strip read. - inst_mode_ref_uv_strip_1 - - Do a dual white & UV measurement - [ Can do in one hit for spot, but how should two strip passes be handled ? - ie. two separate strip reads of phase 1 & then 2 ? ] - (ie. spot, strip, xy or chart). inst_mode_ref_uv_2pass - - Get normal illuminant spectrum. - - Get UV spectrum. - - get_meas_illum_spectrum(mode); - */ - /* Extra dependent modes */ inst_mode_emis_nonadaptive = 0x00000800, /* Emissom Non-adaptive mode */ +# define inst_mode_emis_nonadaptive_sys "EMNA" inst_mode_ref_uv = 0x00001000, /* Ultra Violet measurement mode */ +# define inst_mode_ref_uv_sym "REUV" inst_mode_emis_refresh_ovd = 0x00002000, /* Emissom Refresh mode override */ +# define inst_mode_emis_refresh_ovd_sym "EMRO" inst_mode_emis_norefresh_ovd = 0x00006000, /* Emissom Non-refresh mode override */ +# define inst_mode_emis_norefresh_ovd_sym "ENRO" inst_mode_dep_extra_mask = 0x00007800, /* Mask of measurement modifiers */ /* Extra independent modes */ inst_mode_colorimeter = 0x00004000, /* Colorimetric mode */ +# define inst_mode_colorimeter_sym "COLI" inst_mode_spectral = 0x00008000, /* Spectral mode */ +# define inst_mode_spectral_sym "SPEC" inst_mode_highres = 0x00010000, /* High Resolution Spectral mode */ +# define inst_mode_highres_sym "HIRZ" inst_mode_extra_mask = 0x0001c000, /* Mask of extra modes */ /* Configured for calibration & capable of returning it from inst_mode_calibration */ inst_mode_calibration = 0x80000000, /* Configured for calibration */ +# define inst_mode_calibration_sym "CALB" /* Combined operating modes (from above): */ /* These mode capabilities are also use to set the mode */ @@ -248,6 +272,16 @@ typedef enum { /* Test for a specific mode in capability and mode */ #define IMODETST2(mcap, mbits, mode) (IMODETST(mcap, mode) && IMODETST(mbits, mode)) +#define MAX_INST_MODE_SYM_SZ (32 * (4 + 1)) /* Each bit sym is 4 chars */ + +/* Return a string with a symbolic encoding of the mode flags */ +void inst_mode_to_sym(char sym[MAX_INST_MODE_SYM_SZ], inst_mode mode); + +/* Return a set of mode flags that correspondf to the symbolic encoding */ +/* Return nz if a symbol wasn't recognized */ +int sym_to_inst_mode(inst_mode *mode, const char *sym); + + /* Instrument capabilities 2 */ /* (Available capabilities may be mode dependent) */ typedef enum { @@ -281,6 +315,8 @@ typedef enum { inst2_has_battery = 0x01000000, /* Instrument is battery powered */ inst2_disptype = 0x02000000, /* Has a display type selector */ + /* (ie. get_disptypesel(), set_disptype */ + inst2_ccmx = 0x04000000, /* Colorimeter Correction Matrix capability */ inst2_ccss = 0x08000000, /* Colorimeter Cal. Spectral Set capability */ @@ -300,18 +336,43 @@ typedef enum { } inst3_capability; +/* - - - - - - - - - - - - - - - - - - - */ + +/* API ideas for supporting calibration management: + + functions to: + + return number of used and free builtin slots, + password required flag. + + write builtin calibration or ccss/ccmx file + + write builtin calibration or ccss/ccmx file + + delete builtin calibration or ccss/ccmx file + + Things to be allowed for: + + optional password + configuration specific calibrations. How are they marked ? +*/ + typedef enum { - inst_dtflags_none = 0x0000, /* no flags */ - inst_dtflags_default = 0x0001, /* default display type */ - inst_dtflags_ccss = 0x0002, /* ccss */ - inst_dtflags_ccmx = 0x0004, /* ccmx */ + inst_dtflags_none = 0x0000, /* no flags - assume builtin calibration */ + inst_dtflags_mtx = 0x0001, /* matrix read from instrument */ + inst_dtflags_ccss = 0x0002, /* ccss file */ + inst_dtflags_ccmx = 0x0004, /* ccmx file */ + inst_dtflags_wr = 0x0010, /* Writable slot */ + inst_dtflags_ld = 0x0020, /* mtx/ccss/ccmx is loaded */ + inst_dtflags_default = 0x1000, /* Dafault calibration to use */ inst_dtflags_end = 0x8000 /* end marker */ } inst_dtflags; #define INST_DTYPE_SEL_LEN 10 #define INST_DTYPE_DESC_LEN 100 -/* Structure used to return display type selection information */ +/* Structure used to return display type selection information. */ +/* Calibrations may be implicit (based on ix and driver code), or */ +/* explicit mtx/ccss/ccmx information contained in structure. */ typedef struct _inst_disptypesel { /* Public: */ @@ -322,17 +383,22 @@ typedef struct _inst_disptypesel { char desc[INST_DTYPE_DESC_LEN]; /* Textural description */ int refr; /* Refresh mode flag */ + disptech dtech; /* display techology */ + /* Private: */ int ix; /* Internal index, */ // Stuff for ccss & ccmx - char *path; /* Path to ccss or ccmx */ + char *path; /* Path to ccss or ccmx. NULL if not valid */ + int cc_cbid; /* cbid that matrix requires */ double mat[3][3]; /* ccmx matrix */ - xspect *sets; /* ccss set of sample spectra */ - int no_sets; /* ccs number of sets */ + xspect *sets; /* ccss set of sample spectra. NULL if not valid */ + int no_sets; /* ccs number of sets. 0 if not valid */ } inst_disptypesel; +/* - - - - - - - - - - - - - - - - - - - */ + /* Instrument options for get_set_opt() */ typedef enum { inst_opt_unknown = 0x0000, /* Option not specified */ @@ -361,15 +427,16 @@ typedef enum { inst_opt_initcalib = 0x0008, /* Enable initial calibration (default) [No args] */ inst_opt_noinitcalib = 0x0009, /* Disable initial calibration if < losecs since last */ /* opened, or losecs == 0 [int losecs] */ - inst_opt_set_ccss_obs = 0x000A, /* Set the observer used with ccss device types - */ + inst_opt_askcalib = 0x000A, /* Ask before proceeding with calibration (default) */ + /* [ No args] */ + inst_opt_noaskcalib = 0x000B, /* Proceed with calibration immediately if possible */ + /* [ No args] */ + + inst_opt_set_ccss_obs = 0x000C, /* Set the observer used with ccss device types - */ /* Not applicable to any other type of instrument. */ /* [args: icxObserverType obType,*/ /* xspect custObserver[3] */ - inst_opt_get_dtinfo = 0x000C, /* Get current display type information */ - /* [args: int *refrmode,*/ - /* int *cbid] */ - inst_opt_set_filter = 0x000D, /* Set a filter configuration */ /* [1 argument type inst_opt_filter] */ @@ -391,10 +458,11 @@ typedef enum { inst_opt_set_led_pulse_state= 0x0019, /* Set the current LED state. [double period_in_secs, */ /* double on_time_prop, double trans_time_prop] */ inst_opt_get_led_pulse_state= 0x001A, /* Get the current pulse LED state. [*double period] */ - inst_opt_set_target_state = 0x001B, /* Set the aiming target state 0 = off, 1 == on, 2 = toggle [int] */ + inst_opt_get_target_state = 0x001B, /* Get the aiming target state 0 = off, 1 == on [*int] */ + inst_opt_set_target_state = 0x001C, /* Set the aiming target state 0 = off, 1 == on, 2 = toggle [int] */ - inst_opt_get_min_int_time = 0x001C, /* Get the minimum integration time [*double time] */ - inst_opt_set_min_int_time = 0x001D /* Set the minimum integration time [double time] */ + inst_opt_get_min_int_time = 0x001D, /* Get the minimum integration time [*double time] */ + inst_opt_set_min_int_time = 0x001E /* Set the minimum integration time [double time] */ } inst_opt_type; @@ -624,11 +692,22 @@ typedef enum { int recreate); /* nz to re-check for new ccmx & ccss files */ \ \ /* Set the display type. index is into the inst_disptypesel[] returned */ \ - /* returned by get_disptypesel(). clears col_cor_mat() */ \ + /* returned by get_disptypesel(). clears col_cor_mat() and */ \ + /* col_cal_spec_set(). */ \ inst_code (*set_disptype)( \ struct _inst *p, \ int index); \ \ + /* Get the disptech and other corresponding info for the current */ \ + /* selected display type. Returns disptype_unknown by default. */ \ + /* Because refrmode can be overridden, it may not match the refrmode */ \ + /* of the dtech. (Pointers may be NULL if not needed) */ \ + inst_code (*get_disptechi)( \ + struct _inst *p, \ + disptech *dtech, \ + int *refrmode, \ + int *cbid); \ + \ /* Get a status or get or set an option */ \ /* option state. */ \ /* Some options can be set before init */ \ @@ -806,14 +885,27 @@ typedef enum { char id[CALIDLEN]); /* Condition identifier (ie. white */ \ /* reference ID, filter ID) */ \ \ - /* Measure a display update delay. It is assumed that a */ \ - /* White to black change has been made to the displayed color, */ \ - /* and this will measure the time it took for the update to */ \ - /* be noticed by the instrument, up to 1.0 seconds. */ \ - /* inst_misread will be returned on failure to find a transition to black. */ \ + /* Measure a display update, and instrument reaction time. It is */ \ + /* assumed that a white to black change will be made to the */ \ + /* displayed color during this call, and this is used to measure */ \ + /* the time it took for the update to be noticed by the instrument, */ \ + /* up to 1.0 second. */ \ + /* The instrument reaction time accounts for the time between */ \ + /* when the measure function is called and the samples actually being */ \ + /* taken. This value may be negative if there is a filter delay. */ \ + /* The method white_change() should be called with init=1 before */ \ + /* calling meas_delay, and then with init=0 during the meas_delay() */ \ + /* call to timestamp the transition. */ \ + /* Note that a default instmsec will be returned even on error. */ \ inst_code (*meas_delay)( \ struct _inst *p, \ - int *msecdelay); /* Return the number of msec */ \ + int *dispmsec, /* Return display update delay in msec */ \ + int *instmsec); /* Return instrument reaction time in msec */ \ + \ + /* Call used by other thread to timestamp the patch transition. */ \ + inst_code (*white_change)( \ + struct _inst *p, \ + int init); /* nz to init time stamp, z to mark transition */ \ \ /* Return the last calibrated refresh rate in Hz. Returns: */ \ /* (Available if cap2 & inst2_get_refresh_rate) */ \ @@ -852,7 +944,9 @@ typedef enum { /* To clear the matrix, pass NULL for the matrix */ \ inst_code (*col_cor_mat)( \ struct _inst *p, \ - double mtx[3][3]); /* XYZ matrix */ \ + disptech dtech, /* Use disptech_unknown if not known */ \ + int cbid, /* Calibration display type base ID, needed 1 if unknown */\ + double mtx[3][3]); /* XYZ matrix */ \ \ /* Use a Colorimeter Calibration Spectral Set (ccss) to set the */ \ /* instrumen calibration. This will affect emissive readings. */ \ @@ -863,19 +957,20 @@ typedef enum { /* icxOT_default for the observer. */ \ inst_code (*col_cal_spec_set)( \ struct _inst *p, \ - xspect *sets, /* Set of sample spectra */ \ - int no_sets); /* Number on set */ \ + disptech dtech, /* Use disptech_unknown if not known */ \ + xspect *sets, /* Set of sample spectra */ \ + int no_sets); /* Number on set */ \ \ /* Supply a user interaction callback function. \ * This is called for one of three different purposes: \ * To signal that the instrument measurement has been triggered. \ - * To poll for a abort while waiting to trigger. \ + * To poll for an abort while waiting to trigger. \ * To poll for a user abort during measurement. \ * \ * The callback function will have the purpose paramater appropriately. \ * \ * For inst_negcoms, the return value of inst_user_abort \ - * will abort the communication negotiation \ + * will abort the communication negotiation. \ * \ * For inst_triggered, the return value of the callback is ignored. \ * \ @@ -963,33 +1058,35 @@ void inst_del_disptype_list(inst_disptypesel *list, int no); /* - - - - - - - - - - - - - - - - - - -- */ -/* CCMX support */ +/* CCMX support - ccmx instrument proxy */ typedef struct { char *path; /* Path to the file */ char *desc; /* Technology + display description */ - int cbid; /* Calibration display type base ID */ + disptech dtech; /* Display Technology enumeration (optional if disp) */ + int cc_cbid; /* Calibration display type base ID required */ int refr; /* Refresh mode flag */ char *sel; /* UI selector characters (may be NULL) */ double mat[3][3]; /* The matrix values */ } iccmx; /* return a list of installed ccmx files. */ -/* if inst != NULL, return those that match the given instrument. */ +/* if itype != instUnknown, return those that match the given instrument. */ /* The list is sorted by description and terminated by a NULL entry. */ /* If no is != NULL, return the number in the list */ /* Return NULL and -1 if there is a malloc error */ -iccmx *list_iccmx(char *inst, int *no); +iccmx *list_iccmx(instType itype, int *no); /* Free up a iccmx list */ void free_iccmx(iccmx *list); /* - - - - - - - - - - - - - - - - - - -- */ -/* CCSS support */ +/* CCSS support - ccss instrument proxy */ typedef struct { char *path; /* Path to the file */ char *desc; /* Technology + display description */ + disptech dtech; /* Display Technology enumeration (optional if disp) */ int refr; /* Refresh mode flag */ char *sel; /* UI selector characters (may be NULL) */ xspect *sets; /* Set of sample spectra */ @@ -1011,5 +1108,6 @@ void free_iccss(iccss *list); } #endif + #define INST_H #endif /* INST_H */ diff --git a/spectro/instappsup.c b/spectro/instappsup.c index c83c953..112bab5 100644 --- a/spectro/instappsup.c +++ b/spectro/instappsup.c @@ -168,7 +168,8 @@ inst_code inst_handle_calibrate( inst_cal_cond calc, /* Current current condition */ inst_code (*disp_setup) (inst *p,inst_cal_cond calc, disp_win_info *dwi), /* Callback for handling a display calibration - May be NULL */ - disp_win_info *dwi /* Information to be able to open a display test patch - May be NULL */ + disp_win_info *dwi, /* Information to be able to open a display test patch - May be NULL */ + int doimmediately /* If nz, don't wait for user, calibrate immediatley */ ) { inst_code rv = inst_ok, ev; int usermes = 0; /* User was given a message */ @@ -210,6 +211,10 @@ inst_code inst_handle_calibrate( printf("Calibration failed with '%s' (%s)\n", p->inst_interp_error(p, ev), p->interp_error(p, ev)); + + if (doimmediately) + return inst_user_abort; + printf("Hit any key to retry, or Esc or Q to abort:\n"); empty_con_chars(); @@ -262,14 +267,14 @@ inst_code inst_handle_calibrate( case inst_calc_man_em_dark: printf("Place cap on the instrument, or place on a dark surface,\n"); - printf("or place on the white calibration reference,\n"); + printf("or place on the calibration reference,\n"); printf(" and then hit any key to continue,\n"); printf(" or hit Esc or Q to abort: "); break; case inst_calc_man_am_dark: printf("Place ambient adapter and cap on the instrument,\n"); - printf("or place on the white calibration reference,\n"); + printf("or place on the calibration reference,\n"); printf(" and then hit any key to continue,\n"); printf(" or hit Esc or Q to abort: "); break; @@ -389,7 +394,8 @@ inst_code inst_handle_calibrate( usermes = 1; - if (calc != inst_calc_man_ref_whitek) { + if (!doimmediately + && calc != inst_calc_man_ref_whitek) { empty_con_chars(); ch = next_con_char(); printf("\n"); diff --git a/spectro/instappsup.h b/spectro/instappsup.h index 24da6db..8da4325 100644 --- a/spectro/instappsup.h +++ b/spectro/instappsup.h @@ -77,7 +77,8 @@ inst_code inst_handle_calibrate( inst_cal_cond calc, /* Current calibration condition */ inst_code (*disp_setup) (inst *p, inst_cal_cond calc, disp_win_info *dwi), /* Callback for handling a display calibration - May be NULL */ - disp_win_info *dwi /* Information to be able to open a display test patch - May be NULL */ + disp_win_info *dwi, /* Information to be able to open a display test patch - May be NULL */ + int doimmediately /* If nz, don't wait for user, calibrate immediatley */ ); /* ============================================================================= */ diff --git a/spectro/instlib.ksh b/spectro/instlib.ksh index e112b3c..88796f8 100644 --- a/spectro/instlib.ksh +++ b/spectro/instlib.ksh @@ -56,6 +56,8 @@ SPECTRO_FILES=" icoms.h inst.h inst.c + disptechs.h + disptechs.c insttypes.c insttypes.h insttypeinst.h @@ -95,10 +97,10 @@ SPECTRO_FILES=" colorhug.h spyd2.c spyd2.h - spyd2setup.h - spyd2PLD.h specbos.h specbos.c + kleink10.h + kleink10.c oemarch.c oemarch.h oeminst.c diff --git a/spectro/insttypeinst.h b/spectro/insttypeinst.h index 8ed93d8..a55c3d4 100644 --- a/spectro/insttypeinst.h +++ b/spectro/insttypeinst.h @@ -9,18 +9,31 @@ * see the License2.txt file for licencing details. */ -#include "dtp20.h" -#include "dtp22.h" -#include "dtp41.h" -#include "dtp51.h" -#include "dtp92.h" -#include "ss.h" -#include "i1disp.h" -#include "i1d3.h" -#include "i1pro.h" -#include "munki.h" -#include "hcfr.h" -#include "spyd2.h" -#include "huey.h" -#include "specbos.h" -#include "colorhug.h" + +#ifdef ENABLE_SERIAL +# include "dtp22.h" +# include "dtp41.h" +# include "dtp51.h" +# include "ss.h" +#endif + +#ifdef ENABLE_FAST_SERIAL +# include "specbos.h" +# include "kleink10.h" +#endif + +#ifdef ENABLE_USB +# include "dtp20.h" +# include "dtp92.h" +# include "i1disp.h" +# include "i1d3.h" +# include "i1pro.h" +# include "munki.h" +# include "spyd2.h" +# include "huey.h" +# include "ex1.h" +# include "hcfr.h" +# include "colorhug.h" +#endif + + diff --git a/spectro/insttypes.c b/spectro/insttypes.c index d70bc71..729b328 100644 --- a/spectro/insttypes.c +++ b/spectro/insttypes.c @@ -76,12 +76,16 @@ char *inst_sname(instType itype) { return "ColorMunki"; case instHCFR: return "HCFR"; + case instSpyder1: + return "Spyder1"; case instSpyder2: return "Spyder2"; case instSpyder3: return "Spyder3"; case instSpyder4: return "Spyder4"; + case instSpyder5: + return "Spyder5"; case instHuey: return "Huey"; case instSmile: @@ -90,8 +94,14 @@ char *inst_sname(instType itype) { return "specbos 1201"; case instSpecbos: return "specbos"; + case instKleinK10: + return "K-10"; + case instEX1: + return "EX1"; case instColorHug: return "ColorHug"; + case instColorHug2: + return "ColorHug2"; default: break; } @@ -102,17 +112,17 @@ char *inst_sname(instType itype) { char *inst_name(instType itype) { switch (itype) { case instDTP20: - return "Xrite DTP20"; + return "X-Rite DTP20"; case instDTP22: - return "Xrite DTP22"; + return "X-Rite DTP22"; case instDTP41: - return "Xrite DTP41"; + return "X-Rite DTP41"; case instDTP51: - return "Xrite DTP51"; + return "X-Rite DTP51"; case instDTP92: - return "Xrite DTP92"; + return "X-Rite DTP92"; case instDTP94: - return "Xrite DTP94"; + return "X-Rite DTP94"; case instSpectrolino: return "GretagMacbeth Spectrolino"; case instSpectroScan: @@ -126,7 +136,7 @@ char *inst_name(instType itype) { case instI1Disp2: return "GretagMacbeth i1 Display 2"; case instI1Disp3: - return "Xrite i1 DisplayPro, ColorMunki Display"; + return "X-Rite i1 DisplayPro, ColorMunki Display"; case instI1Monitor: return "GretagMacbeth i1 Monitor"; case instI1Pro: @@ -137,12 +147,16 @@ char *inst_name(instType itype) { return "X-Rite ColorMunki"; case instHCFR: return "Colorimtre HCFR"; + case instSpyder1: + return "ColorVision Spyder1"; case instSpyder2: return "ColorVision Spyder2"; case instSpyder3: return "Datacolor Spyder3"; case instSpyder4: return "Datacolor Spyder4"; + case instSpyder5: + return "Datacolor Spyder5"; case instHuey: return "GretagMacbeth Huey"; case instSmile: @@ -151,8 +165,14 @@ char *inst_name(instType itype) { return "JETI specbos 1201"; case instSpecbos: return "JETI specbos"; + case instKleinK10: + return "Klein K-10"; + case instEX1: + return "Image Engineering EX1"; case instColorHug: return "Hughski ColorHug"; + case instColorHug2: + return "Hughski ColorHug2"; default: break; } @@ -163,17 +183,23 @@ char *inst_name(instType itype) { /* instType, or instUnknown if not matched */ instType inst_enum(char *name) { - if (strcmp(name, "Xrite DTP20") == 0) + if (strcmp(name, "Xrite DTP20") == 0 + || strcmp(name, "X-Rite DTP20") == 0) return instDTP20; - else if (strcmp(name, "Xrite DTP22") == 0) + else if (strcmp(name, "Xrite DTP22") == 0 + || strcmp(name, "X-Rite DTP22") == 0) return instDTP22; - else if (strcmp(name, "Xrite DTP41") == 0) + else if (strcmp(name, "Xrite DTP41") == 0 + || strcmp(name, "X-Rite DTP41") == 0) return instDTP41; - else if (strcmp(name, "Xrite DTP51") == 0) + else if (strcmp(name, "Xrite DTP51") == 0 + || strcmp(name, "X-Rite DTP51") == 0) return instDTP51; - else if (strcmp(name, "Xrite DTP92") == 0) + else if (strcmp(name, "Xrite DTP92") == 0 + || strcmp(name, "X-Rite DTP92") == 0) return instDTP92; - else if (strcmp(name, "Xrite DTP94") == 0) + else if (strcmp(name, "Xrite DTP94") == 0 + || strcmp(name, "X-Rite DTP94") == 0) return instDTP94; else if (strcmp(name, "GretagMacbeth Spectrolino") == 0) return instSpectrolino; @@ -187,28 +213,39 @@ instType inst_enum(char *name) { return instI1Disp1; else if (strcmp(name, "GretagMacbeth i1 Display 2") == 0 || strcmp(name, "GretagMacbeth i1 Display") == 0 - || strcmp(name, "Xrite i1 Display") == 0) + || strcmp(name, "Xrite i1 Display") == 0 + || strcmp(name, "X-Rite i1 Display") == 0) return instI1Disp2; else if (strcmp(name, "Xrite i1 DisplayPro") == 0 - || strcmp(name, "ColorMunki Display") == 0) + || strcmp(name, "X-Rite i1 DisplayPro") == 0 + || strcmp(name, "ColorMunki Display") == 0 + || strcmp(name, "X-Rite i1 DisplayPro, ColorMunki Display") == 0 + || strcmp(name, "Xrite i1 DisplayPro, ColorMunki Display") == 0) return instI1Disp3; else if (strcmp(name, "GretagMacbeth i1 Monitor") == 0) return instI1Monitor; else if (strcmp(name, "GretagMacbeth i1 Pro") == 0 - || strcmp(name, "Xrite i1 Pro") == 0) + || strcmp(name, "Xrite i1 Pro") == 0 + || strcmp(name, "X-Rite i1 Pro") == 0) return instI1Pro; - else if (strcmp(name, "Xrite i1 Pro 2") == 0) + else if (strcmp(name, "Xrite i1 Pro 2") == 0 + || strcmp(name, "X-Rite i1 Pro 2") == 0) return instI1Pro2; - else if (strcmp(name, "X-Rite ColorMunki") == 0) + else if (strcmp(name, "XRite ColorMunki") == 0 + || strcmp(name, "X-Rite ColorMunki") == 0) return instColorMunki; else if (strcmp(name, "Colorimtre HCFR") == 0) return instHCFR; + else if (strcmp(name, "ColorVision Spyder1") == 0) + return instSpyder1; else if (strcmp(name, "ColorVision Spyder2") == 0) return instSpyder2; else if (strcmp(name, "Datacolor Spyder3") == 0) return instSpyder3; else if (strcmp(name, "Datacolor Spyder4") == 0) return instSpyder4; + else if (strcmp(name, "Datacolor Spyder5") == 0) + return instSpyder5; else if (strcmp(name, "GretagMacbeth Huey") == 0) return instHuey; else if (strcmp(name, "ColorMunki Smile") == 0) @@ -217,8 +254,14 @@ instType inst_enum(char *name) { return instSpecbos1201; else if (strcmp(name, "JETI specbos") == 0) return instSpecbos; + else if (strcmp(name, "Klein K-10") == 0) + return instKleinK10; + else if (strcmp(name, "Image Engineering EX1") == 0) + return instEX1; else if (strcmp(name, "Hughski ColorHug") == 0) return instColorHug; + else if (strcmp(name, "Hughski ColorHug2") == 0) + return instColorHug2; return instUnknown; @@ -265,13 +308,15 @@ int nep) { /* Number of end points */ if (idVendor == 0x085C) { /* ColorVision */ if (idProduct == 0x0100) /* ColorVision Spyder1 */ - return instSpyder2; /* Alias to Spyder 2 */ + return instSpyder1; if (idProduct == 0x0200) /* ColorVision Spyder2 */ return instSpyder2; - if (idProduct == 0x0300) /* ColorVision Spyder3 */ + if (idProduct == 0x0300) /* DataColor Spyder3 */ return instSpyder3; - if (idProduct == 0x0400) /* ColorVision Spyder4 */ + if (idProduct == 0x0400) /* DataColor Spyder4 */ return instSpyder4; + if (idProduct == 0x0500) /* DataColor Spyder5 */ + return instSpyder5; } if (idVendor == 0x0971) { /* Gretag Macbeth */ @@ -293,10 +338,18 @@ int nep) { /* Number of end points */ return instColorMunki; } + if (idVendor == 0x2457) { /* Image Engineering */ + if (idProduct == 0x4000) /* EX1 */ + return instEX1; + } + if ((idVendor == 0x04d8 && idProduct == 0xf8da) /* Microchip & Hughski ColorHug (old) */ || (idVendor == 0x273f && idProduct == 0x1001)) { /* Hughski & ColorHug Fmw. >= 0.1.20 */ return instColorHug; } + if (idVendor == 0x273f && idProduct == 0x1004) { /* Hughski & ColorHug2 */ + return instColorHug2; + } /* Add other instruments here */ @@ -371,13 +424,11 @@ int inst_illuminant(xspect *sp, instType itype) { case instHCFR: return 1; /* Not applicable */ + case instSpyder1: case instSpyder2: - return 1; /* Not applicable */ - case instSpyder3: - return 1; /* Not applicable */ - case instSpyder4: + case instSpyder5: return 1; /* Not applicable */ case instHuey: @@ -390,7 +441,14 @@ int inst_illuminant(xspect *sp, instType itype) { case instSpecbos: return 1; /* Not applicable */ + case instKleinK10: + return 1; /* Not applicable */ + + case instEX1: + return 1; /* Not applicable */ + case instColorHug: + case instColorHug2: return 1; /* Not applicable */ diff --git a/spectro/insttypes.h b/spectro/insttypes.h index ff86cc5..58c5bfe 100644 --- a/spectro/insttypes.h +++ b/spectro/insttypes.h @@ -44,14 +44,19 @@ typedef enum { instI1Pro2, /* X-Rite i1 Pro2 */ instColorMunki, /* X-Rite ColorMunki */ instHCFR, /* Colorimtre HCFR */ + instSpyder1, /* Datacolor/ColorVision Spyder1 */ instSpyder2, /* Datacolor/ColorVision Spyder2 */ instSpyder3, /* Datacolor Spyder3 */ instSpyder4, /* Datacolor Spyder4 */ + instSpyder5, /* Datacolor Spyder5 */ instHuey, /* GretagMacbeth Huey */ instSmile, /* X-rite Colormunki Smile */ instSpecbos1201, /* JETI specbos 1201 */ instSpecbos, /* JETI specbos XXXX */ + instKleinK10, /* Klein K10-A */ + instEX1, /* Image Engineering EX1 */ instColorHug, /* Hughski ColorHug */ + instColorHug2, /* Hughski ColorHug2 */ instFakeDisp = 9998, /* Fake display & instrument device id */ diff --git a/spectro/kleink10.c b/spectro/kleink10.c new file mode 100644 index 0000000..d632bdb --- /dev/null +++ b/spectro/kleink10.c @@ -0,0 +1,2810 @@ + +/* + * Argyll Color Correction System + * + * JETI kleink10 1211/1201 related functions + * + * Author: Graeme W. Gill + * Date: 29/4/2014 + * + * Copyright 1996 - 2014, Graeme W. Gill + * All rights reserved. + * + * This material is licenced under the GNU GENERAL PUBLIC LICENSE Version 2 or later :- + * see the License2.txt file for licencing details. + * + * Based on DTP92.c & specbos.c + */ + +/* + If you make use of the instrument driver code here, please note + that it is the author(s) of the code who take responsibility + for its operation. Any problems or queries regarding driving + instruments with the Argyll drivers, should be directed to + the Argyll's author(s), and not to any other party. + + If there is some instrument feature or function that you + would like supported here, it is recommended that you + contact Argyll's author(s) first, rather than attempt to + modify the software yourself, if you don't have firm knowledge + of the instrument communicate protocols. There is a chance + that an instrument could be damaged by an incautious command + sequence, and the instrument companies generally cannot and + will not support developers that they have not qualified + and agreed to support. + */ + +/* + + TTBD: + +*/ + +#include +#include +#include +#include +#include +#include +#ifndef SALONEINSTLIB +#include "copyright.h" +#include "aconfig.h" +#include "numlib.h" +#else /* !SALONEINSTLIB */ +#include "sa_config.h" +#include "numsup.h" +#endif /* !SALONEINSTLIB */ +#include "xspect.h" +#include "insttypes.h" +#include "conv.h" +#include "icoms.h" +#include "kleink10.h" + +#undef HIGH_SPEED /* [und] Use high speed flicker measure for refresh rate etc. */ +#define AUTO_AVERAGE /* [def] Automatically average more readings for low light */ +#define RETRY_RANGE_ERROR 3 /* [3] Retry range error readings 3 times */ + +#undef PLOT_REFRESH /* [und] Plot refresh rate measurement info */ +#undef PLOT_UPDELAY /* [und] Plot update delay measurement info */ + +#undef TEST_BAUD_CHANGE /* Torture test baud rate change on non high speed K10 */ + +static inst_disptypesel k10_disptypesel[98]; +static inst_code k10_interp_code(kleink10 *p, int ec); +static inst_code k10_read_cal_list(kleink10 *p); +static inst_code set_default_disp_type(kleink10 *p); +static inst_code k10_read_flicker_samples(kleink10 *p, double duration, double *srate, + double **pvals, int *pnsamp, int usefast); + +#define MAX_MES_SIZE 500 /* Maximum normal message reply size */ +#define MAX_RD_SIZE 8000 /* Maximum reading message reply size */ + +/* Decode a K10 error letter */ +static int decodeK10err(char c) { + if (c == '0') { + return K10_OK; + } else if (c == 'B') { + return K10_FIRMWARE; + } else if (c == 'X') { + return K10_FIRMWARE; + } else if (c == 'b') { + return K10_BLACK_EXCESS; + } else if (c == 's') { + return K10_BLACK_OVERDRIVE; + } else if (c == 't') { + return K10_BLACK_ZERO; + } else if (c == 'w') { + return K10_OVER_HIGH_RANGE; + } else if (c == 'v') { + return K10_TOP_OVER_RANGE; + } else if (c == 'u') { + return K10_BOT_UNDER_RANGE; + } else if (c == 'L') { + return K10_AIMING_LIGHTS; + } else { + return K10_UNKNOWN; + } +} + +/* Extract an error code from a reply string */ +/* Remove the error code from the string and return the */ +/* new length in *nlength */ +/* Return K10_BAD_RETVAL if no error code can be found */ +static int +extract_ec(char *s, int *nlength, int bread) { +#define MAXECHARS 1 + char *f, *p; + char tt[MAXECHARS+1]; + int rv; + p = s + bread; + +//printf("Got '%s' bread %d\n",s,bread); + + /* Find the trailing '>' */ + for (p--; p >= s; p--) { + if (*p == '>') + break; + } + if (p < s) + return K10_BAD_RETVAL; +//printf("trailing is at %d '%s'\n",p - s, p); + + /* Find the leading '<' */ + for (f = p-1; f >= (p-MAXECHARS-1) && f >= s; f--) { + if (*f == '<') + break; + if ((*f < '0' || *f > '9') + && (*f < 'a' || *f > 'z') + && (*f < 'A' || *f > 'Z')) + return K10_BAD_RETVAL; + } + if (f < s || f < (p-MAXECHARS-1) || (p-f) <= 1) { +//printf("f < s ? %d, f < (p-MAXECHARS-1) ? %d, (p-f) <= 1 ? %d\n", +//f < s, f < (p-10), (p-f) <= 1); + return K10_BAD_RETVAL; + } +//printf("leading is at %d '%s'\n",f - s, f); + + if (p-f-1 <= 0) + return K10_BAD_RETVAL; + + strncpy(tt, f+1, p-f-1); + tt[p-f-1] = '\000'; +//printf("error code is '%s'\n",tt); + + /* Interpret the error character(s) */ + /* It's not clear if more than one error can be returned. */ + /* We are only looking at the first character - we should */ + /* really prioritize them id more than one can occur. */ + for (p = tt; *p != '\000'; p++) { + rv = decodeK10err(*p); + break; + } + + /* Remove the error code from the reply */ + if (nlength != NULL) + *nlength = f - s; + *f = '\000'; + return rv; +} + +/* Interpret an icoms error into a KLEINK10 error */ +static int icoms2k10_err(int se) { + if (se != ICOM_OK) { + if (se & ICOM_TO) + return K10_TIMEOUT; + return K10_COMS_FAIL; + } + return K10_OK; +} + +typedef enum { + ec_n = 0, /* No error code or command echo */ + ec_e = 1, /* Error code */ + ec_c = 2, /* Command echo */ + ec_ec = 3 /* Both error code and command echo */ +} ichecks; + +/* Do a full command/response echange with the kleink10 */ +/* (This level is not multi-thread safe) */ +/* Return the kleink10 error code. */ +static int +k10_fcommand( +struct _kleink10 *p, +char *in, /* In string */ +char *out, /* Out string buffer */ +int bsize, /* Out buffer size */ +int *pbread, /* Bytes read (including '\000') */ +int nchar, /* Number of characters to expect */ +double to, /* Timeout in seconds */ +ichecks xec, /* Error check */ +int nd /* nz to disable debug messages */ +) { + int se, rv = K10_OK; + int bwrite, bread = 0; + char cmd[10]; + + bwrite = strlen((char *)in); + strncpy((char *)cmd, (char *)in, 2); + cmd[2] = '\000'; + + if ((se = p->icom->write_read(p->icom, in, 0, out, bsize, &bread, NULL, nchar, to)) + != ICOM_OK) { + rv = icoms2k10_err(se); + + } else { + + if (!nd && p->log->debug >= 6) { + a1logd(p->log, 6, "k10_fcommand: command sent\n"); + adump_bytes(p->log, " ", (unsigned char *)in, 0, bwrite); + a1logd(p->log, 6, " returned %d bytes:\n",bread); + adump_bytes(p->log, " ", (unsigned char *)out, 0, bread); + } + + if (xec & ec_e) { + rv = extract_ec(out, &bread, bread); + } + + if ((xec & ec_c) && rv == K10_OK && strncmp(cmd, out, 2) != 0) { + rv = K10_CMD_VERIFY; + } + } + if (!nd) a1logd(p->log, 6, " error code 0x%x\n",rv); + + if (pbread != NULL) + *pbread = bread; + + return rv; +} + +/* Do a normal command/response echange with the kleink10. */ +/* (This level is not multi-thread safe) */ +/* Return the inst code */ +static inst_code +k10_command( +kleink10 *p, +char *in, /* In string */ +char *out, /* Out string buffer */ +int bsize, /* Out buffer size */ +int *bread, /* Bytes read */ +int nchar, /* Number of characters to expect */ +ichecks xec, /* Error check */ +double to) { /* Timout in seconds */ + int rv = k10_fcommand(p, in, out, bsize, bread, nchar, to, xec, 0); + return k10_interp_code(p, rv); +} + +/* Do a write to the kleink10 */ +/* (This level is not multi-thread safe) */ +/* Return the kleink10 error code. */ +static int +k10_write( +struct _kleink10 *p, +char *in, /* In string */ +double to /* Timeout in seconds */ +) { + int rv = K10_OK; + int se; + + if ((se = p->icom->write(p->icom, in, 0, to)) != ICOM_OK) { + rv = icoms2k10_err(se); + + } else { + + if (p->log->debug >= 6) { + a1logd(p->log, 6, "k10_write: command sent\n"); + adump_bytes(p->log, " ", (unsigned char *)in, 0, strlen((char *)in)); + } + } + a1logd(p->log, 6, " error code 0x%x\n",rv); + + return rv; +} + +/* Do a read from the kleink10 */ +/* (This level is not multi-thread safe) */ +/* Return the kleink10 error code. */ +static int +k10_read( +struct _kleink10 *p, +char *out, /* Out string buffer */ +int bsize, /* Out buffer size */ +int *pbread, /* Bytes read (including '\000') */ +char *tc, /* Terminating characters, NULL for none or char count mode */ +int nchar, /* Number of terminating characters needed, or char count needed */ +double to /* Timeout in seconds */ +) { + int se, rv = K10_OK; + int bread = 0; + + if ((se = p->icom->read(p->icom, out, bsize, &bread, tc, nchar, to)) != ICOM_OK) { + rv = icoms2k10_err(se); + } else { + + if (p->log->debug >= 6) { + a1logd(p->log, 6, "k10_read: read %d bytes\n",bread); + adump_bytes(p->log, " ", (unsigned char *)out, 0, bread); + } + } + a1logd(p->log, 6, " error code 0x%x\n",rv); + + if (pbread != NULL) + *pbread = bread; + + return rv; +} + +/* Change baud rates */ +/* (This level is not multi-thread safe) */ +/* Return the kleink10 error code. */ +static int +k10_set_baud( +struct _kleink10 *p, +baud_rate br +) { + int se, rv = K10_OK; + if ((se = p->icom->set_ser_port(p->icom, fc_HardwareDTR, br, parity_none, + stop_1, length_8)) != ICOM_OK) { + rv = icoms2k10_err(se); + } else { + if (p->log->debug >= 6) { + a1logd(p->log, 6, "k10_set_baud: %d\n",br); + } + } + a1logd(p->log, 6, " error code 0x%x\n",rv); + + return rv; +} + +/* ------------------------------------------------------------ */ + +/* Establish communications with a kleink10 */ +/* Return K10_COMS_FAIL on failure to establish communications */ +static inst_code +k10_init_coms(inst *pp, baud_rate br, flow_control fc, double tout) { + kleink10 *p = (kleink10 *) pp; + char buf[MAX_MES_SIZE]; + baud_rate brt[] = { baud_9600, baud_nc }; + unsigned int etime; + unsigned int i; + instType itype = pp->itype; + int se; + char *cp; + + inst_code ev = inst_ok; + + a1logd(p->log, 2, "k10_init_coms: About to init Serial I/O\n"); + + if (p->gotcoms) { + a1logd(p->log, 2, "k10_init_coms: already inited\n"); + return inst_ok; + } + + amutex_lock(p->lock); + + if (p->icom->port_type(p->icom) != icomt_serial + && p->icom->port_type(p->icom) != icomt_usbserial) { + amutex_unlock(p->lock); + a1logd(p->log, 1, "k10_init_coms: wrong communications type for device!\n"); + return inst_coms_fail; + } + + /* The tick to give up on */ + etime = msec_time() + (long)(500.0 + 0.5); + + a1logd(p->log, 1, "k10_init_coms: Trying different baud rates (%u msec to go)\n",etime - msec_time()); + + /* Until we time out, find the correct baud rate */ + for (i = 0; msec_time() < etime; i++) { + if (brt[i] == baud_nc) { + i = 0; + } + a1logd(p->log, 5, "k10_init_coms: trying baud ix %d\n",brt[i]); + if ((se = p->icom->set_ser_port(p->icom, fc_HardwareDTR, brt[i], parity_none, + stop_1, length_8)) != ICOM_OK) { + amutex_unlock(p->lock); + a1logd(p->log, 5, "k10_init_coms: set_ser_port failed with 0x%x\n",se); + return k10_interp_code(p, icoms2k10_err(se));; /* Give up */ + } + + /* Check instrument is responding */ + if (((ev = k10_command(p, "P0\r", buf, MAX_MES_SIZE, NULL, 21, ec_ec, 0.5)) & inst_mask) + != inst_coms_fail) { + break; /* We've got coms or user abort */ + } + + /* Check for user abort */ + if (p->uicallback != NULL) { + inst_code ev; + if ((ev = p->uicallback(p->uic_cntx, inst_negcoms)) == inst_user_abort) { + amutex_unlock(p->lock); + a1logd(p->log, 1, "k10_init_coms: user aborted\n"); + return inst_user_abort; + } + } + } + + if (msec_time() >= etime) { /* We haven't established comms */ + amutex_unlock(p->lock); + a1logd(p->log, 2, "k10_init_coms: failed to establish coms\n"); + return inst_coms_fail; + } + + /* Check the response */ + if (ev != inst_ok) { + amutex_unlock(p->lock); + a1logd(p->log, 2, "k10_init_coms: status command failed\n"); + return ev; + } + + if (strncmp (buf+2, "K-10 ", 7) == 0) + p->model = k10_k10; + else if (strncmp (buf+2, "K-10-A ", 7) == 0) + p->model = k10_k10a; + else if (strncmp (buf+2, "KV-10-A", 7) == 0) + p->model = k10_kv10a; + else { + amutex_unlock(p->lock); + a1logd(p->log, 2, "k10_init_coms: unrecognised model '%s'\n",buf); + return inst_unknown_model; + } + + /* Extract the serial number */ + strncpy(p->serial_no, buf+9, 9); + p->serial_no[20] = '\000'; + + a1logd(p->log, 2, "k10_init_coms: coms established\n"); + + p->gotcoms = 1; + + amutex_unlock(p->lock); + + /* Get the list of calibrations */ + if ((ev = k10_read_cal_list(p)) != inst_ok) { + return ev; + } + + a1logd(p->log, 2, "k10_init_coms: init coms is returning\n"); + return inst_ok; +} + +/* Initialise the KLEINK10 */ +/* return non-zero on an error, with dtp error code */ +static inst_code +k10_init_inst(inst *pp) { + kleink10 *p = (kleink10 *)pp; + char mes[100]; + char buf[MAX_MES_SIZE]; + unsigned int stime; + int se; + inst_code ev = inst_ok; + + a1logd(p->log, 2, "k10_init_inst: called\n"); + + if (p->gotcoms == 0) + return inst_internal_error; /* Must establish coms before calling init */ + + amutex_lock(p->lock); + + /* Make sure the target lights are off */ + if ((ev = k10_command(p, "L0\r", buf, MAX_MES_SIZE, NULL, 2+3, ec_ec, 1.0)) != inst_ok) { + amutex_unlock(p->lock); + return ev; + } + p->lights = 0; + + /* Make sure we are auto ranging by default */ + if ((ev = k10_command(p, "J8\r", buf, MAX_MES_SIZE, NULL, 2+3, ec_ec, 1.0)) != inst_ok) { + amutex_unlock(p->lock); + return ev; + } + p->autor = 1; + + /* Grab the firware version */ + stime = msec_time(); + if ((ev = k10_command(p, "P2\r", buf, MAX_MES_SIZE, NULL, 2+8+3, ec_ec, 2.0)) != inst_ok) { + amutex_unlock(p->lock); + return ev; + } + p->comdel = (msec_time() - stime)/2; /* Or is this the FD232 update latency ? */ + strncpy(p->firm_ver, buf+2, 8); + p->firm_ver[8] = '\000'; + + amutex_unlock(p->lock); + + /* Set a default calibration */ + if ((ev = set_default_disp_type(p)) != inst_ok) { + return ev; + } + + p->inited = 1; + + /* Do a flicker read to work around glitch at the 0.4 second mark of the */ + /* first one after power up. We ignore any error. */ + if ((ev = k10_read_flicker_samples(p, 0.5, NULL, NULL, NULL, 0)) != inst_ok) { + a1logd(p->log, 1, "k10_init_inst: warning - startup k10_read_flicker_samples failed with 0x%x - ignored\n",ev); + } + + a1logd(p->log, 2, "k10_init_inst: instrument inited OK\n"); + + if (p->log->verb) { + char *model = "Unknown"; + switch (p->model) { + case k10_k10: + model = "K10"; + break; + case k10_k10a: + model = "K10-A"; + break; + case k10_kv10a: + model = "KV10-A"; + break; + } + a1logv(p->log, 1, " Model: '%s'\n",model); + a1logv(p->log, 1, " Serial number: '%s'\n",p->serial_no); + a1logv(p->log, 1, " Firmware version: '%s'\n",p->firm_ver); + } + + return inst_ok; +} + + +/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */ + +/* Convert a Klein Measurement encoded 24 bit value to a double */ +double KleinMeas2double(char *ibuf) { + unsigned char *buf = (unsigned char *)ibuf; + unsigned int ip; + double op; + int sn = 0, ma; + int ep; + + ip = (buf[0] << 8) + buf[1]; + sn = (ip >> 15) & 0x1; + ma = ip & ((1 << 15)-1); + ep = buf[2]; + if (ep >= 128) + ep -= 256; + + op = (double)ma; + op *= pow(2.0, (double)ep-16); + if (sn) + op = -op; + return op; +} + +/* Decode measurement RGB range into 3 x 1..6 */ +static void decodeRange(int *out, char iin) { + unsigned char in = (unsigned char)iin; + int t, r0, r1, r2, r3; + int tt; + + out[0] = (in >> 7) & 1; + out[1] = (in >> 6) & 1; + out[2] = (in >> 5) & 1; + + in &= 0x1F; + + out[0] += 1 + 2 * ((in / 9) % 3); + out[1] += 1 + 2 * ((in / 3) % 3); + out[2] += 1 + 2 * (in % 3); +} + + +/* Convert a Klein Calibration encoded 24 bit value to a double */ +double KleinCal2double(char *ibuf) { + unsigned char *buf = (unsigned char *)ibuf; + ORD32 ip; + double op; + ORD32 sn = 0, ma; + int ep; + + ip = (buf[0] << 8) + buf[1]; + sn = (ip >> 15) & 0x1; + ma = ip & ((1 << 15)-1); + ep = buf[2]; + if (ep >= 128) + ep -= 256; + + op = (double)ma; + op *= pow(2.0, (double)ep-15); + if (sn) + op = -op; + return op; +} + +/* Convert a native double to an Klein Calibration encoded 24 bit value, */ +void double2KleinCal(char *ibuf, double d) { + unsigned char *buf = (unsigned char *)ibuf; + ORD32 sn = 0, ma; + int ep; + double n; + + if (d < 0.0) { + sn = 1; + d = -d; + } + if (d != 0.0) { + ep = (int)floor(log(d)/log(2.0)) + 1; + + n = pow(0.5, (double)(ep - 15)); /* Normalisation factor */ + + /* If rounding would cause an overflow, adjust exponent */ + if (floor(d * n + 0.5) >= (double)(1 << 15)) { + n *= 0.5; + ep++; + } + + if (ep < -128) { /* Alow denormalised */ + ep = -128; + n = pow(0.5, (double)(ep - 15)); /* Normalisation factor */ + } + + if (ep > 127) { /* Saturate maximum */ + ep = 127; + d = (double)(1 << 15)-1; + } else { + d *= n; + if (d < 0.5) + ep = 0; + } + } else { + ep = 0; /* Zero */ + } + ma = (((ORD32)floor(d + 0.5)) & ((1 << 16)-1)) | (sn << 15); + buf[0] = ((ma >> 8) & 0xff); + buf[1] = (ma & 0xff); + + buf[2] = ep; +} + +double CalMan2double(char *ibuf) { + unsigned char *buf = (unsigned char *)ibuf; + ORD64 val; + + /* Load LE into 64 bit */ + val = buf[7]; + val = ((val << 8) + (0xff & buf[6])); + val = ((val << 8) + (0xff & buf[5])); + val = ((val << 8) + (0xff & buf[4])); + val = ((val << 8) + (0xff & buf[3])); + val = ((val << 8) + (0xff & buf[2])); + val = ((val << 8) + (0xff & buf[1])); + val = ((val << 8) + (0xff & buf[0])); + + return IEEE754_64todouble(val); +} + +/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */ + +/* Decode an N5 measre command response */ +static inst_code decodeN5(kleink10 *p, double *XYZ, int *range, char *buf, int blen) { + + if (blen < (2 + 3 * 3 + 1)) { + a1logd(p->log, 1, "decodeN5: failed to parse '%s'\n",icoms_fix(buf)); + return inst_protocol_error; + } + + if (XYZ != NULL) { + XYZ[0] = KleinMeas2double(buf+2); + XYZ[1] = KleinMeas2double(buf+5); + XYZ[2] = KleinMeas2double(buf+8); + } + + if (range != NULL) + decodeRange(range, buf[11]); + + return inst_ok; +} + + +/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */ + +/* Read a given calibration matrix */ +static inst_code +k10_read_cal_matrix( +kleink10 *p, +inst_disptypesel *m, /* Matrix calibration to write */ +int ix /* Klein calibration index 1 - 96 */ +) { + inst_code ev = inst_protocol_error; + int se; + char cmd[3]; + char buf[MAX_MES_SIZE]; + int bread, i, j, k; + + if (!p->gotcoms) + return inst_no_coms; + + amutex_lock(p->lock); + + /* Trigger cal matrix read */ + if ((ev = k10_command(p, "D1\r", buf, MAX_MES_SIZE, &bread, 2, ec_c, 2.0)) != inst_ok) { + amutex_unlock(p->lock); + return ev; + } + + if (buf[0] != 'D' || buf[1] != '1') { + amutex_unlock(p->lock); + a1logd(p->log, 1, "k10_read_cal_matrix: didn't get echo'd commad D1\n"); + return inst_protocol_error; + } + + /* Send the cal index and read matrix */ + cmd[0] = ix; + cmd[1] = '\r'; + cmd[2] = '\000'; + + if ((ev = k10_command(p, cmd, buf, MAX_MES_SIZE, &bread, 128+3, ec_e, 2.0)) != inst_ok) { + amutex_unlock(p->lock); + return ev; + } + + if (bread < 128) { + amutex_unlock(p->lock); + a1logd(p->log, 1, "k10_read_cal_matrix: not enough bytes returned (%d)\n",bread); + return inst_protocol_error; + } + + a1logd(p->log, 6, "Cal '%s':\n",m->desc); + + /* CalMan format matrix */ + if (buf[21] == 'C') { + for (k = 24, i = 0; i < 3; i++) { + for (j = 0; j < 3; j++) { + if ((bread-k) < 8) { + amutex_unlock(p->lock); + return inst_protocol_error; + } + m->mat[i][j] = CalMan2double(buf + k); + k += 8; + a1logd(p->log, 6, " Mat[%d][%d] = %f\n",i,j,m->mat[i][j]); + } + } + + /* Klein format matrix */ + } else { + for (k = 101, i = 0; i < 3; i++) { + for (j = 0; j < 3; j++) { + if ((bread-k) < 3) { + amutex_unlock(p->lock); + return inst_protocol_error; + } + m->mat[i][j] = KleinCal2double(buf + k); + k += 3; + a1logd(p->log, 6, " Mat[%d][%d] = %f\n",i,j,m->mat[i][j]); + } + } + } + m->flags |= inst_dtflags_ld; /* It's now loaded */ + amutex_unlock(p->lock); + + return inst_ok; +} + +/* Guess appropriate disptype and selector letters for standard calibrations */ +static void guess_disptype(inst_disptypesel *s, char *desc) { + disptech dtype; + disptech_info *i; + char *sel = NULL; + + if (strcmp(desc, "Default CRT File") == 0) { + dtype = disptech_crt; + } else if (strcmp(desc, "Klein DLP Lux") == 0) { + dtype = disptech_dlp; + sel = "P"; + } else if (strcmp(desc, "Klein SMPTE C") == 0) { + dtype = disptech_crt; + sel = "E"; + } else if (strcmp(desc, "TVL XVM245") == 0) { /* RGB LED LCD Video display */ + dtype = disptech_lcd_rgbled; + } else if (strcmp(desc, "Klein LED Bk LCD") == 0) { + dtype = disptech_lcd_rgbled; + sel = "d"; + } else if (strcmp(desc, "Klein Plasma") == 0) { + dtype = disptech_plasma; + } else if (strcmp(desc, "DLP Screen") == 0) { + dtype = disptech_dlp; + } else if (strcmp(desc, "TVL LEM150") == 0) { /* OLED */ + dtype = disptech_oled; + } else if (strcmp(desc, "Sony EL OLED") == 0) { /* OLED */ + dtype = disptech_oled; + sel = "O"; + } else if (strcmp(desc, "Eizo CG LCD") == 0) { /* Wide gamut IPS LCD RGB ? (or RG+P ?)*/ + dtype = disptech_lcd_rgbled_ips; + sel = "z"; + } else if (strcmp(desc, "FSI 2461W") == 0) { /* Wide gamut IPS ? LCD CCFL */ + dtype = disptech_lcd_ccfl_wg; + } else if (strcmp(desc, "HP DreamColor 2") == 0) { /* Wide gamut IPS ? LCD RG+P */ + dtype = disptech_lcd_rgledp; + } else { + dtype = disptech_unknown; + } + + i = disptech_get_id(dtype); + s->dtech = dtype; + if (sel != NULL) + strcpy(s->sel, sel); + else + strcpy(s->sel, i->sel); +} + +/* Read the list of calibrations available */ +static inst_code +k10_read_cal_list( +kleink10 *p) { + inst_code ev = inst_protocol_error; + char buf[MAX_RD_SIZE]; + int bread, i, j, ix, n; + char name[21]; + + if (!p->gotcoms) + return inst_no_coms; + + /* Make sure factory matrix values is in the first entry */ + for (i = 0; i < 3; i++) { + for (j = 0; j < 3; j++) { + if (i == j) + k10_disptypesel[0].mat[i][j] = 1.0; + else + k10_disptypesel[0].mat[i][j] = 0.0; + } + } + k10_disptypesel[0].flags |= inst_dtflags_ld; + + amutex_lock(p->lock); + + /* Grab the raw info */ + if ((ev = k10_command(p, "D7\r", buf, MAX_RD_SIZE, &bread, 1925, ec_ec, 6.0)) != inst_ok) { + amutex_unlock(p->lock); + a1logd(p->log, 1, "k10_read_cal_list D7 returning error 0x%x\n",ev); + return ev; + } + + /* Parse it. There should be 96 calibrations */ + name[20] = '\000'; + for (i = 2, ix = 1, n = 1; ix <= 96 && (bread-i) >= 20; i += 20, ix++) { + + for (j = 0; j < 20; j++) + name[j] = buf[i + j]; + + if (((unsigned char *)name)[0] == 0xff) { + continue; + } + for (j = 19; j >= 0; j--) { + if (name[j] != ' ') { + name[j+1] = '\000'; + break; + } + } + +// printf("Adding Cal %d is '%s'\n",ix,name); + + /* Add it to the list */ + memset((void *)&k10_disptypesel[n], 0, sizeof(inst_disptypesel)); + k10_disptypesel[n].flags = inst_dtflags_mtx | inst_dtflags_wr; /* Not loaded yet */ + k10_disptypesel[n].cbid = 0; + strcpy(k10_disptypesel[n].desc, name); + k10_disptypesel[n].refr = 0; + k10_disptypesel[n].ix = ix; + guess_disptype(&k10_disptypesel[n], name); + n++; + } + + /* Put marker at end */ + k10_disptypesel[n].flags = inst_dtflags_end; + k10_disptypesel[n].cbid = 0; + k10_disptypesel[n].sel[0] = '\000'; + k10_disptypesel[n].desc[0] = '\000'; + k10_disptypesel[n].refr = 0; + k10_disptypesel[n].ix = 0; + + amutex_unlock(p->lock); + + return inst_ok; +} + +/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */ + +static abort_flicker(kleink10 *p, int isnew, double *retbuf) { + char buf[MAX_MES_SIZE]; + int bread; + + /* Abort flicker transfer */ + k10_write(p, "N5\r", 2.0); + + /* Flush the buffer of any remaining characters. */ + k10_read(p, buf, MAX_MES_SIZE, &bread, "<0>", 3, 1.0); + + /* Return the baud rate to normal */ + if (isnew) + k10_set_baud(p, baud_9600); + +#ifdef TEST_BAUD_CHANGE + else { + k10_set_baud(p, baud_19200); + k10_set_baud(p, baud_9600); + } +#endif + + /* Clean up everything else */ + amutex_unlock(p->lock); + + if (retbuf != NULL) + free(retbuf); +} + +/* Read flicker samples */ +/* Free *pvals after use */ +static inst_code +k10_read_flicker_samples( +kleink10 *p, +double duration, /* duration to take samples */ +double *srate, /* Return the sampel rate */ +double **pvals, /* Return the sample values */ +int *pnsamp, /* Return the number of samples */ +int usefast /* If nz use fast rate is possible */ +) { + int se = K10_OK; + inst_code ev = inst_ok; + int isnew = 0; + double rate = 256; + double *retbuf; + int tsamp, nsamp; + char mes[4] = "JX\r"; + char buf[MAX_MES_SIZE]; + int boff, bread; + int range[3]; + unsigned int stime; + int derr = 0, rerr = 0; + int i; + + stime = msec_time(); + + if (!p->gotcoms) + return inst_no_coms; + if (!p->inited) + return inst_no_init; + + amutex_lock(p->lock); + +#ifdef HIGH_SPEED + /* This isn't reliable, because there is no way to ensure that */ + /* the T1 command has been sent before we change the baud rate, */ + /* anf if we wait too long will will loose the measurements. */ + if (usefast && strcmp(p->firm_ver, "v01.09fh") > 0) { + isnew = 1; /* We can use faster T1 command */ + rate = 384; + a1logd(p->log, 1, "k10_read_flicker: using faster T1\n"); + } +#endif /* HIGH_SPEED */ + + /* Target number of samples */ + tsamp = (int)(duration * (double)rate + 0.5); + + if (tsamp < 1) + tsamp = 1; + + a1logd(p->log, 1, "k10_read_flicker: taking %d samples\n",tsamp); + + if ((retbuf = (double *)malloc(sizeof(double) * tsamp)) == NULL) { + amutex_unlock(p->lock); + a1logd(p->log, 1, "k10_read_flicker: malloc of %d bytes failed\n",sizeof(double) * tsamp); + return k10_interp_code(p, K10_INT_MALLOC); + } + + /* Make sure the target lights are off */ + if (p->lights) { + int se; + if ((ev = k10_command(p, "L0\r", buf, MAX_MES_SIZE, NULL, 2+3, ec_ec, 0.5)) != inst_ok) { + amutex_unlock(p->lock); + free(retbuf); + a1logd(p->log, 1, "k10_read_flicker: L0 failed\n"); + return ev; + } + p->lights = 0; + } + + /* Make sure we are auto ranging */ + if (!p->autor) { + if ((ev = k10_command(p, "J8\r", buf, MAX_MES_SIZE, NULL, 2+3, ec_ec, 1.0)) != inst_ok) { + amutex_unlock(p->lock); + a1logd(p->log, 1, "k10_read_flicker: J8 failed with 0x%x\n",ev); + return ev; + } + p->autor = 1; + } + + /* Take a measurement to get ranges ? */ + if ((ev = k10_command(p, "N5\r", buf, MAX_MES_SIZE, &bread, 15, ec_ec, 2.0)) != inst_ok) { + amutex_unlock(p->lock); + free(retbuf); + a1logd(p->log, 1, "k10_read_flicker: N5 failed with 0x%x\n",ev); + return ev; + } + + if ((ev = decodeN5(p, NULL, range, buf, bread)) != inst_ok) { + a1logd(p->log, 1, "k10_read_flicker: decodeN5 failed with 0x%x\n",ev); + amutex_unlock(p->lock); + return ev; + } + + /* Set a fixed range to avoid a range change error */ + p->autor = 0; + if ((ev = k10_command(p, "J7\r", buf, MAX_MES_SIZE, NULL, 2+3, ec_ec, 1.0)) != inst_ok) { + amutex_unlock(p->lock); + a1logd(p->log, 1, "k10_read_flicker: J7 failed with 0x%x\n",ev); + return ev; + } + mes[1] = '0' + range[1]; /* Green range */ + if ((ev = k10_command(p, mes, buf, MAX_MES_SIZE, NULL, 2+3, ec_ec, 1.0)) != inst_ok) { + amutex_unlock(p->lock); + a1logd(p->log, 1, "k10_read_flicker: %s failed with 0x%x\n",buf,ev); + return ev; + } + + /* Issue an T2 for normal speed flicker measure, or T1 for fast */ + a1logd(p->log, 6, "k10_read_flicker: issuing T1/T2 command\n"); + if ((se = k10_write(p, isnew ? "T1\r" : "T2\r", 2.0)) != K10_OK) { + amutex_unlock(p->lock); + free(retbuf); + a1logd(p->log, 1, "k10_read_flicker: T1/T2 failed with 0x%x\n",icoms2k10_err(se)); + return k10_interp_code(p, se); + } + + stime = msec_time() - stime; + stime -= p->comdel; + + /* Switch to 19200 baud if using fast */ + if (isnew) { + /* Allow the T1/T2 to flow out before changing the baud rate */ + msec_sleep(2); + + if ((se = k10_set_baud(p, baud_19200)) != K10_OK) { + abort_flicker(p, isnew, retbuf); + a1logd(p->log, 1, "k10_read_flicker: T1 19200 baud failed with 0x%x\n", + icoms2k10_err(se)); + return k10_interp_code(p, se); + } + } + +#ifdef TEST_BAUD_CHANGE + else { + msec_sleep(2); + k10_set_baud(p, baud_19200); + k10_set_baud(p, baud_9600); + } +#endif + + /* Capture flicker packets until we've got enough samples */ + for (boff = nsamp = 0; nsamp < tsamp; ) { + if ((se = k10_read(p, buf + boff, MAX_MES_SIZE - boff, &bread, + NULL, 96, 2.0)) != K10_OK) { + abort_flicker(p, isnew, retbuf); + a1logd(p->log, 1, "k10_read_flicker: reading packet failed with 0x%x\n",icoms2k10_err(se)); + return k10_interp_code(p, se); + } + + boff += bread; + + /* Extract the values we want */ + /* (We could get XYZ, range & error value too) */ + if (boff >= 96) { + int trange[3]; + unsigned char *ubuf = (unsigned char *)buf; + + for (i = 0; i < 32 && nsamp < tsamp; i++, nsamp++) + retbuf[nsamp] = ubuf[i * 3 + 1] * 256.0 + ubuf[i * 3 + 2]; + + /* Check the error and range */ + if ((se = decodeK10err(buf[3 * 13])) != K10_OK) { + a1logd(p->log, 1, "k10_read_flicker: decode error 0x%x\n",se); + derr = se; + + } else { + + decodeRange(trange, buf[3 * 11]); + + if (trange[0] != range[0] + || trange[1] != range[1] + || trange[2] != range[2]) { + a1logd(p->log, 1, "k10_read_flicker: range changed\n"); + rerr = 1; + } + } + + /* Shuffle any remaining bytes down */ + if (boff > 96) + memmove(buf, buf + 96, boff - 96); + boff -= 96; + +#ifdef NEVER + { /* Dump */ + char xtra[32]; + double XYZ[3]; + int range[3]; + char err; + + for (i = 0; i < 32; i++) + xtra[i] = buf[i * 3 + 0]; + + adump_bytes(p->log, " ", (unsigned char *)buf, 0, 96); + printf("Extra bytes:\n"); + adump_bytes(p->log, " ", (unsigned char *)xtra, 0, 32); + + XYZ[0] = KleinMeas2double(xtra+2); + XYZ[1] = KleinMeas2double(xtra+5); + XYZ[2] = KleinMeas2double(xtra+8); + + decodeRange(range, xtra[11]); + err = xtra[13]; + printf("XYZ %f %f %f range %d %d %d err '%c'\n\n", + XYZ[0], XYZ[1], XYZ[2], range[0], range[1], range[2],err); + } +#endif + + } + } + + a1logd(p->log, 6, "k10_read_flicker: read %d samples\n",nsamp); + + /* Then issue an N5 to cancel, and clean up */ + abort_flicker(p, isnew, NULL); + + if (derr != 0) { + free(retbuf); + a1logd(p->log, 1, "k10_read_flicker: got error 0x%x during readings\n",derr); + return icoms2k10_err(derr); + } + + if (rerr != 0) { + free(retbuf); + a1logd(p->log, 1, "k10_read_flicker: range changed during readings\n"); + return icoms2k10_err(K10_RANGE_CHANGE); + } + +#ifdef NEVER + { /* Plot */ + double *xx; + + xx = (double *)malloc(sizeof(double) * tsamp); + for (i = 0; i < tsamp; i++) + xx[i] = (double)i/(double)rate; + + do_plot(xx, retbuf, NULL, NULL, tsamp); + free(xx); + } +#endif + + if (pvals != NULL) + *pvals = retbuf; + else + free(retbuf); + if (pnsamp != NULL) + *pnsamp = nsamp; + if (srate != NULL) + *srate = (double)rate; + + return inst_ok; +} + +/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */ + +/* Read a single sample */ +static inst_code +k10_read_sample( +inst *pp, +char *name, /* Strip name (7 chars) */ +ipatch *val, /* Pointer to instrument patch value */ +instClamping clamp) { /* NZ if clamp XYZ/Lab to be +ve */ + kleink10 *p = (kleink10 *)pp; + char buf[MAX_RD_SIZE]; + int user_trig = 0; + int bsize; + inst_code rv = inst_protocol_error; + int range[3]; /* Range for RGB sensor values */ + int i, tries,ntav = 1; /* Number of readings to average */ + double v, vv, XYZ[3]; + + if (!p->gotcoms) + return inst_no_coms; + if (!p->inited) + return inst_no_init; + + amutex_lock(p->lock); + + if (p->trig == inst_opt_trig_user) { + amutex_unlock(p->lock); + + if (p->uicallback == NULL) { + a1logd(p->log, 1, "kleink10: inst_opt_trig_user but no uicallback function set!\n"); + return inst_unsupported; + } + + for (;;) { + if ((rv = p->uicallback(p->uic_cntx, inst_armed)) != inst_ok) { + if (rv == inst_user_abort) { + return rv; /* Abort */ + } + if (rv == inst_user_trig) { + user_trig = 1; + break; /* Trigger */ + } + } + msec_sleep(200); + } + /* Notify of trigger */ + if (p->uicallback) + p->uicallback(p->uic_cntx, inst_triggered); + amutex_lock(p->lock); + + /* Progromatic Trigger */ + } else { + /* Check for abort */ + if (p->uicallback != NULL + && (rv = p->uicallback(p->uic_cntx, inst_armed)) == inst_user_abort) { + amutex_unlock(p->lock); + return rv; /* Abort */ + } + } + + /* Make sure the target lights are off */ + if (p->lights) { + if ((rv = k10_command(p, "L0\r", buf, MAX_MES_SIZE, NULL, 2+3, ec_ec, 1.0)) != inst_ok) { + amutex_unlock(p->lock); + a1logd(p->log, 1, "k10_read_sample: L0 failed\n"); + return rv; + } + p->lights = 0; + } + + /* Make sure we are auto ranging */ + if (!p->autor) { + if ((rv = k10_command(p, "J8\r", buf, MAX_MES_SIZE, NULL, 2+3, ec_ec, 1.0)) != inst_ok) { + amutex_unlock(p->lock); + return rv; + } + p->autor = 1; + } + + + for (tries = 0; tries < RETRY_RANGE_ERROR; tries++) { + + /* Take a measurement */ + rv = k10_command(p, "N5\r", buf, MAX_MES_SIZE, &bsize, 15, ec_ec, 2.0); + + if (rv == inst_ok + || ( (rv & inst_imask) != K10_TOP_OVER_RANGE + && (rv & inst_imask) != K10_BOT_UNDER_RANGE)) + break; + } + + if (rv == inst_ok) + rv = decodeN5(p, val->XYZ, range, buf, bsize); + + if (rv == inst_ok) { + double thr[4] = { 0.2, 2.0, 20.0, 50.0 }; /* Threshold */ + double nav[4] = { 20, 10, 4, 2 }; /* Count */ + + /* Make v the largest */ + v = val->XYZ[1]; + if (val->XYZ[0] > v) + v = val->XYZ[0]; + if (val->XYZ[2] > v) + v = val->XYZ[2]; + + ntav = 1; +#ifdef AUTO_AVERAGE + if (!IMODETST(p->mode, inst_mode_emis_nonadaptive)) { + /* Decide how many extra readings to average into result. */ + /* Interpolate between the thresholds */ + if (v < 0.2) { + ntav = nav[0]; + } else if (v < thr[1]) { + vv = 1.0 - (v - thr[0]) / (thr[1] - thr[0]); + vv = vv * vv * vv; + ntav = (int)(vv * (nav[0] - 10) + 10.0 + 0.5); + } else if (v < thr[2]) { + vv = 1.0 - (v - thr[1]) / (thr[2] - thr[1]); + vv = vv * vv * vv; + ntav = (int)(vv * (nav[1] - nav[2]) + nav[2] + 0.5); + } else if (v < thr[3]) { + vv = 1.0 - (v - thr[2]) / (thr[3] - thr[2]); + vv = vv * vv * vv; + ntav = (int)(vv * (nav[2] - nav[3]) + nav[3] + 0.5); + } + } +#endif + + for (i = 1; i < ntav; i++) { + if ((rv = k10_command(p, "N5\r", buf, MAX_MES_SIZE, &bsize, 15, ec_ec, 2.0)) != inst_ok) + break; + if ((rv = decodeN5(p, XYZ, range, buf, bsize)) != inst_ok) + break; + + val->XYZ[0] += XYZ[0]; + val->XYZ[1] += XYZ[1]; + val->XYZ[2] += XYZ[2]; + } + } + + + if (rv != inst_ok) { + amutex_unlock(p->lock); + return rv; + } + + val->XYZ[0] /= (double)ntav; + val->XYZ[1] /= (double)ntav; + val->XYZ[2] /= (double)ntav; + + + amutex_unlock(p->lock); + + if ((rv = decodeN5(p, val->XYZ, range, buf, bsize)) != inst_ok) { + return rv; + } + + /* Apply the calibration correction matrix */ + icmMulBy3x3(val->XYZ, p->ccmat, val->XYZ); + +//printf("matrix = %f %f %f\n", p->ccmat[0][0], p->ccmat[0][1], p->ccmat[0][2]); +//printf(" %f %f %f\n", p->ccmat[1][0], p->ccmat[1][1], p->ccmat[2][2]); +//printf(" %f %f %f\n", p->ccmat[2][0], p->ccmat[2][1], p->ccmat[2][2]); +//printf("XYZ = %f %f %f\n", val->XYZ[0], val->XYZ[1], val->XYZ[2]); +//printf("range = %d %d %d\n", range[0], range[1], range[2]); + + /* This may not change anything since instrument may clamp */ + if (clamp) + icmClamp3(val->XYZ, val->XYZ); + + val->loc[0] = '\000'; + + /* Check if the matrix seems to be an Ambient matrix */ + if ((p->ccmat[0][0] + p->ccmat[1][1] + p->ccmat[2][2])/3.0 > 5.0) + val->mtype = inst_mrt_ambient; + else + val->mtype = inst_mrt_emission; + val->XYZ_v = 1; /* These are absolute XYZ readings */ + val->sp.spec_n = 0; + val->duration = 0.0; + rv = inst_ok; + + + if (user_trig) + return inst_user_trig; + return rv; +} + +/* - - - - - - - - - - - - - - - - */ +/* + + Determining the refresh rate for a refresh type display. + + This is easy because the sample rate of the Kleoin + is well above the refresh rates we ant to measure. + + If there is no aparent refresh, or the refresh rate is not determinable, + return a period of 0.0 and inst_ok; +*/ + +#undef FREQ_SLOW_PRECISE /* [und] Interpolate then autocorrelate, else autc & filter */ + +#define NFSAMPS 450 /* Maximum number of samples to read (= 1.0sec) */ +#define NFMXTIME 0.5 /* Time to take measurements over */ +#define PBPMS 20 /* bins per msec */ +#define PERMIN ((1000 * PBPMS)/40) /* 40 Hz */ +#define PERMAX ((1000 * PBPMS)/4) /* 4 Hz*/ +#define NPER (PERMAX - PERMIN + 1) +#define PWIDTH (8 * PBPMS) /* 8 msec bin spread to look for peak in */ +#define MAXPKS 20 /* Number of peaks to find */ + +static inst_code k10_imp_measure_refresh( + kleink10 *p, + double *ref_rate +) { + inst_code ev; + int i, j, k, mm; + + int nfsamps; /* Actual samples read */ + double *samp; /* Samples */ + double srate; /* Sampling rate used to measure frequency */ + double rsamp; /* Sampling time */ + + double minv; /* Minimum reading */ + double maxv; /* Maximum reading */ + double maxt; /* Time range */ + +#ifdef FREQ_SLOW_PRECISE + int nbins; + double *bins; /* PBPMS sample bins */ +#else + double tcorr[NPER]; /* Temp for initial autocorrelation */ + int ntcorr[NPER]; /* Number accumulated */ +#endif + double corr[NPER]; /* Filtered correlation for each period value */ + double mincv, maxcv; /* Max and min correlation values */ + double crange; /* Correlation range */ + double peaks[MAXPKS]; /* Peak wavelength */ + double peakh[MAXPKS]; /* Peak heighheight */ + int npeaks; /* Number of peaks */ + double pval; /* Period value */ + double rfreq; /* Computed refresh frequency for each try */ + int tix = 0; /* try index */ + + a1logd(p->log,2,"k10_imp_meas_refrate called\n"); + + if (ref_rate != NULL) + *ref_rate = 0.0; /* Define refresh rate on error */ + + rfreq = 0.0; + npeaks = 0; /* Number of peaks */ + + if ((ev = k10_read_flicker_samples(p, NFMXTIME, &srate, &samp, &nfsamps, 1)) != inst_ok) { + return ev; + } + + rsamp = 1.0/srate; + +#ifdef PLOT_REFRESH + /* Plot the raw sensor values */ + { + double xx[NFSAMPS]; + + for (i = 0; i < nfsamps; i++) + xx[i] = i * rsamp; + printf("Fast scan sensor values and time (sec)\n"); + do_plot(xx, samp, NULL, NULL, nfsamps); + } +#endif /* PLOT_REFRESH */ + + /* Locate the smallest values and maximum time */ + maxt = -1e6; + minv = minv = minv = 1e20; + maxv = maxv = maxv = -11e20; + for (i = nfsamps-1; i >= 0; i--) { + if (samp[i] < minv) + minv = samp[i]; + if (samp[i] > maxv) + maxv = samp[i]; + } + maxt = (nfsamps-1) * rsamp; + + /* Zero offset the readings */ + for (i = nfsamps-1; i >= 0; i--) + samp[i] -= minv; + +#ifdef FREQ_SLOW_PRECISE /* Interp then autocorrelate */ + + /* Create PBPMS bins and interpolate readings into them */ + nbins = 1 + (int)(maxt * 1000.0 * PBPMS + 0.5); + if ((bins = (double *)calloc(sizeof(double), nbins)) == NULL) { + a1loge(p->log, inst_internal_error, "k10_imp_measure_refresh: malloc nbins %d failed\n",nbins); + free(samp); + return k10_interp_code(p, K10_INT_MALLOC); + } + + /* Do the interpolation */ + for (k = 0; k < (nfsamps-1); k++) { + int sbin, ebin; + double ksec = k * rsamp; + double ksecp1 = (k+1) * rsamp; + sbin = (int)(ksec * 1000.0 * PBPMS + 0.5); + ebin = (int)(ksecp1 * 1000.0 * PBPMS + 0.5); + for (i = sbin; i <= ebin; i++) { + double bl; +#if defined(__APPLE__) && defined(__POWERPC__) + gcc_bug_fix(i); +#endif + bl = (i - sbin)/(double)(ebin - sbin); /* 0.0 to 1.0 */ + bins[i] = (1.0 - bl) * samp[k] + bl * samp[k+1]; + } + } + +#ifdef NEVER + + /* Plot interpolated values */ + { + double *xx = malloc(sizeof(double) * nbins); + + if (xx == NULL) { + a1loge(p->log, inst_internal_error, "k10_imp_measure_refresh: malloc plot nbins %d failed\n",nbins); + free(samp); + return k10_interp_code(p, K10_INT_MALLOC); + } + for (i = 0; i < nbins; i++) + xx[i] = i / (double)PBPMS; /* msec */ + printf("Interpolated fast scan sensor values and time (msec)\n"); + do_plot(xx, bins, NULL, NULL, nbins); + free(xx); + } +#endif /* NEVER */ + + /* Compute auto-correlation at 1/PBPMS msec intervals */ + /* from 25 msec (40Hz) to 100msec (10 Hz) */ + mincv = 1e48, maxcv = -1e48; + for (i = 0; i < NPER; i++) { + int poff = PERMIN + i; /* Offset to corresponding sample */ + + corr[i] = 0; + for (k = 0; (k + poff) < nbins; k++) + corr[i] += bins[k] * bins[k + poff]; + corr[i] /= (double)k; /* Normalize */ + + if (corr[i] > maxcv) + maxcv = corr[i]; + if (corr[i] < mincv) + mincv = corr[i]; + } + /* Free the bins */ + free(bins); + +#else /* !FREQ_SLOW_PRECISE Fast - autocorrellate then filter */ + + /* Do point by point correllation of samples */ + for (i = 0; i < NPER; i++) { + tcorr[i] = 0.0; + ntcorr[i] = 0; + } + + for (j = 0; j < (nfsamps-1); j++) { + + for (k = j+1; k < nfsamps; k++) { + double del, cor; + int bix; + + del = (k - j) * rsamp; /* Sample time delta */ + bix = (int)(del * 1000.0 * PBPMS + 0.5); + if (bix < PERMIN) + continue; + if (bix > PERMAX) + break; + bix -= PERMIN; + + cor = samp[j] * samp[k]; + +//printf("~1 j %d k %d, del %f bix %d cor %f\n",j,k,del,bix,cor); + tcorr[bix] += cor; + ntcorr[bix]++; + } + } + /* Divide out count and linearly interpolate */ + j = 0; + for (i = 0; i < NPER; i++) { + if (ntcorr[i] > 0) { + tcorr[i] /= ntcorr[i]; + if ((i - j) > 1) { + if (j == 0) { + for (k = j; k < i; k++) + tcorr[k] = tcorr[i]; + + } else { /* Linearly interpolate from last value */ + double ww = (double)i-j; + for (k = j+1; k < i; k++) { + double bl = (k-j)/ww; + tcorr[k] = (1.0 - bl) * tcorr[j] + bl * tcorr[i]; + } + } + } + j = i; + } + } + if (j < (NPER-1)) { + for (k = j+1; k < NPER; k++) { + tcorr[k] = tcorr[j]; + } + } + +#ifdef PLOT_REFRESH + /* Plot unfiltered auto correlation */ + { + double xx[NPER]; + double y1[NPER]; + + for (i = 0; i < NPER; i++) { + xx[i] = (i + PERMIN) / (double)PBPMS; /* msec */ + y1[i] = tcorr[i]; + } + printf("Unfiltered auto correlation (msec)\n"); + do_plot(xx, y1, NULL, NULL, NPER); + } +#endif /* PLOT_REFRESH */ + + /* Apply a gausian filter */ +#define FWIDTH 100 + { + double gaus_[2 * FWIDTH * PBPMS + 1]; + double *gaus = &gaus_[FWIDTH * PBPMS]; + double bb = 1.0/pow(2, 5.0); + double fw = rsamp * 1000.0; + int ifw; + +//printf("~1 sc = %f = %f msec\n",1.0/rsamp, fw); +//printf("~1 fw = %f, ifw = %d\n",fw,ifw); + + fw *= 0.9; + ifw = (int)ceil(fw * PBPMS); + if (ifw > FWIDTH * PBPMS) + error("k10: Not enough space for lanczos 2 filter"); + for (j = -ifw; j <= ifw; j++) { + double x, y; + x = j/(PBPMS * fw); + if (fabs(x) > 1.0) + y = 0.0; + else + y = 1.0/pow(2, 5.0 * x * x) - bb; + gaus[j] = y; +//printf("~1 gaus[%d] = %f\n",j,y); + } + + for (i = 0; i < NPER; i++) { + double sum = 0.0; + double wght = 0.0; + + for (j = -ifw; j <= ifw; j++) { + double w; + int ix = i + j; + if (ix < 0) + ix = -ix; + if (ix > (NPER-1)) + ix = 2 * NPER-1 - ix; + w = gaus[j]; + sum += w * tcorr[ix]; + wght += w; + } +//printf("~1 corr[%d] wgt = %f\n",i,wght); + corr[i] = sum / wght; + } + } + + /* Compute min & max */ + mincv = 1e48, maxcv = -1e48; + for (i = 0; i < NPER; i++) { + if (corr[i] > maxcv) + maxcv = corr[i]; + if (corr[i] < mincv) + mincv = corr[i]; + } + +#endif /* !FREQ_SLOW_PRECISE Fast - autocorrellate then filter */ + + crange = maxcv - mincv; + a1logd(p->log,3,"Correlation value range %f - %f = %f = %f%%\n",mincv, maxcv,crange, 100.0 * (maxcv-mincv)/maxcv); + +#ifdef PLOT_REFRESH + /* Plot this measuremnts auto correlation */ + { + double xx[NPER]; + double y1[NPER]; + + for (i = 0; i < NPER; i++) { + xx[i] = (i + PERMIN) / (double)PBPMS; /* msec */ + y1[i] = corr[i]; + } + printf("Auto correlation (msec)\n"); + do_plot6(xx, y1, NULL, NULL, NULL, NULL, NULL, NPER); + } +#endif /* PLOT_REFRESH */ + +#define PFDB 4 // normally debug level 4 + /* If there is sufficient level and distict correlations */ + if (crange/maxcv >= 0.1) { + + a1logd(p->log,PFDB,"Searching for peaks\n"); + + /* Locate all the peaks starting at the longest correllation */ + for (i = (NPER-1-PWIDTH); i >= 0 && npeaks < MAXPKS; i--) { + double v1, v2, v3; + v1 = corr[i]; + v2 = corr[i + PWIDTH/2]; /* Peak */ + v3 = corr[i + PWIDTH]; + + if (fabs(v3 - v1)/crange < 0.05 + && (v2 - v1)/crange > 0.025 + && (v2 - v3)/crange > 0.025 + && (v2 - mincv)/crange > 0.5) { + double pkv; /* Peak value */ + int pki; /* Peak index */ + double ii, bl; + +#ifdef PLOT_REFRESH + a1logd(p->log,PFDB,"Max between %f and %f msec\n", + (i + PERMIN)/(double)PBPMS,(i + PWIDTH + PERMIN)/(double)PBPMS); +#endif + + /* Locate the actual peak */ + pkv = -1.0; + pki = 0; + for (j = i; j < (i + PWIDTH); j++) { + if (corr[j] > pkv) { + pkv = corr[j]; + pki = j; + } + } +#ifdef PLOT_REFRESH + a1logd(p->log,PFDB,"Peak is at %f msec, %f corr\n", (pki + PERMIN)/(double)PBPMS, pkv); +#endif + + /* Interpolate the peak value for higher precision */ + /* j = bigest */ + if (corr[pki-1] > corr[pki+1]) { + j = pki-1; + k = pki+1; + } else { + j = pki+1; + k = pki-1; + } + bl = (corr[pki] - corr[j])/(corr[pki] - corr[k]); + bl = (bl + 1.0)/2.0; + ii = bl * pki + (1.0 - bl) * j; + pval = (ii + PERMIN)/(double)PBPMS; +#ifdef PLOT_REFRESH + a1logd(p->log,PFDB,"Interpolated peak is at %f msec\n", pval); +#endif + peaks[npeaks] = pval; + peakh[npeaks] = corr[pki]; + npeaks++; + + i -= PWIDTH; + } +#ifdef NEVER + if (v2 > v1 && v2 > v3) { + printf("Peak rejected:\n"); + printf("(v3 - v1)/crange = %f < 0.05 ?\n",fabs(v3 - v1)/crange); + printf("(v2 - v1)/crange = %f > 0.025 ?\n",(v2 - v1)/crange); + printf("(v2 - v3)/crange = %f > 0.025 ?\n",(v2 - v3)/crange); + printf("(v2 - mincv)/crange = %f > 0.5 ?\n",(v2 - mincv)/crange); + } +#endif + } + a1logd(p->log,3,"Number of peaks located = %d\n",npeaks); + + } else { + a1logd(p->log,3,"All rejected, crange/maxcv = %f < 0.06\n",crange/maxcv); + } +#undef PFDB + + a1logd(p->log,3,"Number of peaks located = %d\n",npeaks); + + if (npeaks > 1) { /* Compute aparent refresh rate */ + int nfails; + double div, avg, ano; + + /* Try and locate a common divisor amongst all the peaks. */ + /* This is likely to be the underlying refresh rate. */ + for (k = 0; k < npeaks; k++) { + for (j = 1; j < 25; j++) { + avg = ano = 0.0; + div = peaks[k]/(double)j; + if (div < 5.0) + continue; /* Skip anything higher than 200Hz */ +//printf("~1 trying %f Hz\n",1000.0/div); + for (nfails = i = 0; i < npeaks; i++) { + double rem, cnt; + + rem = peaks[i]/div; + cnt = floor(rem + 0.5); + rem = fabs(rem - cnt); + +#ifdef PLOT_REFRESH + a1logd(p->log, 3, "remainder for peak %d = %f\n",i,rem); +#endif + if (rem > 0.06) { + if (++nfails > 2) + break; /* Fail this divisor */ + } else { + avg += peaks[i]; /* Already weighted by cnt */ + ano += cnt; + } + } + + if (nfails == 0 || (nfails <= 2 && npeaks >= 6)) + break; /* Sucess */ + /* else go and try a different divisor */ + } + if (j < 25) + break; /* Success - found common divisor */ + } + if (k >= npeaks) { + a1logd(p->log,3,"Failed to locate common divisor\n"); + + } else { + pval = 1000.0 * ano/avg; + if (pval > srate) { + a1logd(p->log,3,"Discarding frequency %f > sample rate %f\n",pval, srate); + } else { + rfreq = pval; + a1logd(p->log,3,"Located frequency %f sum %f dif %f\n",pval, pval + srate, fabs(pval - srate)); + tix++; + } + } + } + + if (tix) { + + /* The Klein samples so fast, we don't have to deal with */ + /* sub Nyquist aliases. */ + + if (ref_rate != NULL) + *ref_rate = rfreq; + + /* Error against my 85Hz CRT - GWG */ + a1logd(p->log, 1, "Refresh rate %f Hz, error = %.4f%%\n",rfreq,100.0 * fabs(rfreq - 85.0)/(85.0)); + free(samp); + return k10_interp_code(p, K10_OK); + + } else { + a1logd(p->log, 3, "Refresh rate was unclear\n"); + } + + free(samp); + + return k10_interp_code(p, K10_NOREFR_FOUND); +} +#undef NFSAMPS +#undef PBPMS +#undef PERMIN +#undef PERMAX +#undef NPER +#undef PWIDTH + +/* Read an emissive refresh rate */ +static inst_code +k10_read_refrate( +inst *pp, +double *ref_rate +) { + kleink10 *p = (kleink10 *)pp; + char buf[MAX_MES_SIZE]; + double refrate; + inst_code rv; + + if (!p->gotcoms) + return inst_no_coms; + if (!p->inited) + return inst_no_init; + + if (ref_rate != NULL) + *ref_rate = 0.0; + + if ((rv = k10_imp_measure_refresh(p, &refrate)) != inst_ok) { + return rv; + } + + if (refrate == 0.0) + return inst_misread; + + if (ref_rate != NULL) + *ref_rate = refrate; + + return inst_ok; +} + +/* - - - - - - - - - - - - - - - - */ +/* Measure a display update delay. It is assumed that */ +/* white_stamp(init) has been called, and then a */ +/* white to black change has been made to the displayed color, */ +/* and this will measure the time it took for the update to */ +/* be noticed by the instrument, up to 2.0 seconds. */ +/* (It is assumed that white_change() will be called at the time the patch */ +/* changes color.) */ +/* inst_misread will be returned on failure to find a transition to black. */ + +#define NDSAMPS 40 /* Maximum samples */ +#define NDMXTIME 2.0 /* Maximum time to take */ + +static inst_code k10_meas_delay( +inst *pp, +int *pdispmsec, /* Return display update delay in msec */ +int *pinstmsec) { /* Return instrument reaction time in msec */ + kleink10 *p = (kleink10 *)pp; + inst_code ev; + char mes[MAX_MES_SIZE]; + int bread; + int i, j, k; + double sutime, putime, cutime, eutime; + struct { + double sec; + double xyz[3]; + } samp[NDSAMPS]; + int ndsamps; + double stot, etot, del, thr; + double stime, etime; + int isdeb; + int avgsampsp; + int dispmsec, instmsec; + + if (pinstmsec != NULL) + *pinstmsec = -230; + + if (!p->gotcoms) + return inst_no_coms; + + if (!p->inited) + return inst_no_init; + + if (usec_time() < 0.0) { + a1loge(p->log, inst_internal_error, "k10_imp_meas_delay: No high resolution timers\n"); + return inst_internal_error; + } + + /* Turn debug off so that they doesn't intefere with measurement timing */ + isdeb = p->log->debug; + p->icom->log->debug = 0; + + /* Read the samples */ + putime = usec_time() / 1000000.0; + amutex_lock(p->lock); + for (i = 0; i < NDSAMPS; i++) { + + /* Take a measurement to get ranges ? */ + if ((ev = k10_command(p, "N5\r", mes, MAX_MES_SIZE, &bread, 15, ec_ec, 2.0)) != inst_ok) { + amutex_unlock(p->lock); + p->log->debug = isdeb; + a1logd(p->log, 1, "k10_meas_delay: measurement failed\n"); + return ev; + } + + if ((ev = decodeN5(p, samp[i].xyz, NULL, mes, bread)) != inst_ok) { + amutex_unlock(p->lock); + p->log->debug = isdeb; + a1logd(p->log, 1, "k10_meas_delay: measurement decode failed\n"); + return ev; + } + + cutime = usec_time() / 1000000.0; +// samp[i].sec = 0.5 * (putime + cutime); /* Mean of before and after stamp ? */ + samp[i].sec = cutime; /* Assume took until measure was received */ +// samp[i].sec = putime; /* Assume sampled at time triggered */ + putime = cutime; + if (cutime > NDMXTIME) + break; + } + ndsamps = i; + amutex_unlock(p->lock); + + /* Average sample spacing in msec */ + avgsampsp = (int)(1000.0 * (samp[i-1].sec - samp[0].sec)/(i-1.0) + 0.5); + + /* Restore debugging */ + p->log->debug = isdeb; + + if (ndsamps == 0) { + a1logd(p->log, 1, "k10_meas_delay: No measurement samples returned in time\n"); + return inst_internal_error; + } + + if (p->whitestamp < 0.0) { + a1logd(p->log, 1, "k10_meas_delay: White transition wasn't timestamped\n"); + return inst_internal_error; + } + + /* Set the times to be white transition relative */ + for (i = 0; i < ndsamps; i++) + samp[i].sec -= p->whitestamp / 1000000.0; + + /* Over the first 100msec, locate the maximum value */ + stime = samp[0].sec; + stot = -1e9; + for (i = 0; i < ndsamps; i++) { + if (samp[i].xyz[1] > stot) + stot = samp[i].xyz[1]; + if ((samp[i].sec - stime) > 0.1) + break; + } + + /* Over the last 100msec, locate the maximum value */ + etime = samp[ndsamps-1].sec; + etot = -1e9; + for (i = ndsamps-1; i >= 0; i--) { + if (samp[i].xyz[1] > etot) + etot = samp[i].xyz[1]; + if ((etime - samp[i].sec) > 0.1) + break; + } + + del = etot - stot; + thr = etot - 0.10 * del; /* 10% of transition threshold */ + +#ifdef PLOT_UPDELAY + a1logd(p->log, 0, "k10_meas_delay: start tot %f end tot %f del %f, thr %f\n", stot, etot, del, thr); +#endif + +#ifdef PLOT_UPDELAY + /* Plot the raw sensor values */ + { + double xx[NDSAMPS]; + double y1[NDSAMPS]; + double y2[NDSAMPS]; + double y3[NDSAMPS]; + + for (i = 0; i < ndsamps; i++) { + xx[i] = samp[i].sec; + y1[i] = samp[i].xyz[0]; + y2[i] = samp[i].xyz[1]; + y3[i] = samp[i].xyz[2]; + } + printf("Display update delay measure sensor values and time (sec)\n"); + do_plot(xx, y1, y2, y3, ndsamps); + } +#endif + + /* Check that there has been a transition */ + if (del < (0.7 * etot)) { + a1logd(p->log, 1, "k10_meas_delay: can't detect change from black to white\n"); + return inst_misread; + } + + /* Working from the start, locate the time at which the level was above the threshold */ + for (i = 0; i < (ndsamps-1); i++) { + if (samp[i].xyz[1] > thr) + break; + } + + a1logd(p->log, 2, "k10_meas_delay: stoped at sample %d time %f\n",i,samp[i].sec); + + /* Compute overall delay */ + dispmsec = (int)(samp[i].sec * 1000.0 + 0.5); + + /* The 20 Hz filter is probably a FIR which introduces a delay in */ + /* the samples being measured, creating both a settling delay and */ + /* a look ahead. A negative inst. reaction time value will cause the */ + /* patch_delay to be extended by that amount of time. */ + /* We assume 2 samples times to settle, but round up the patch */ + /* delay conservatively. */ + instmsec = -2 * avgsampsp; + +#ifdef PLOT_UPDELAY + a1logd(p->log, 0, "k10_meas_delay: raw %d & %d msec\n",dispmsec,instmsec); +#endif + + dispmsec += instmsec; /* Account for lookahead */ + + if (dispmsec < 0) /* This can happen if the patch generator delays it's return */ + dispmsec = 0; + + /* Round the patch delay to to next highest avgsampsp */ + dispmsec = (int)((1.0 + floor((double)dispmsec/(double)avgsampsp)) * avgsampsp + 0.5); + + if (pdispmsec != NULL) + *pdispmsec = dispmsec; + + if (pinstmsec != NULL) + *pinstmsec = instmsec; + +#ifdef PLOT_UPDELAY + a1logd(p->log, 0, "k10_meas_delay: returning %d & %d msec\n",dispmsec,instmsec); +#endif + + return inst_ok; +} +#undef NDSAMPS +#undef DINTT +#undef NDMXTIME + + +/* Timestamp the white patch change during meas_delay() */ +static inst_code k10_white_change( +inst *pp, +int init) { + kleink10 *p = (kleink10 *)pp; + inst_code ev; + + if (init) + p->whitestamp = -1.0; + else { + if ((p->whitestamp = usec_time()) < 0.0) { + a1loge(p->log, inst_internal_error, "k10_wite_changeO: No high resolution timers\n"); + return inst_internal_error; + } + } + + return inst_ok; +} + +/* - - - - - - - - - - - - - - - - */ + +/* Do a black calibration */ +static inst_code +k10_do_black_cal( + kleink10 *p +) { + inst_code ev; + char mes[MAX_MES_SIZE]; + unsigned char *umes = (unsigned char *)mes; + int bread; + int i, j, k; + int val, th1, th2; + int bvals[6][3]; /* Black values for range 1 to 6 */ + int thermal; /* Thermal value */ + + amutex_lock(p->lock); + + /* First get the Measure Count to check that TH1 and TH2 are between 50 and 200 */ + /* (Don't know why or what these mean - something to do with temperature compensation */ + /* values not being setup ?) */ + if ((ev = k10_command(p, "M6\r", mes, MAX_MES_SIZE, &bread, 20, ec_e, 2.0)) != inst_ok) { + amutex_unlock(p->lock); + a1logd(p->log, 1, "k10_do_black_cal: M6 failed\n"); + return ev; + } + + if (bread < 17) { + amutex_unlock(p->lock); + a1logd(p->log, 1, "k10_do_black_cal: not enough bytes returned from M6 (%d)\n",bread); + return inst_protocol_error; + } + + th1 = umes[14]; + th2 = umes[15]; + + if (th1 < 50 || th1 > 200 + || th2 < 50 || th2 > 200) { + amutex_unlock(p->lock); + a1logd(p->log, 1, "th1 %d or th2 %d is out of range 50-200\n",th1,th2); + return k10_interp_code(p, K10_BLACK_CAL_INIT); + } + + /* Do the black calibration */ + if ((ev = k10_command(p, "B9\r", mes, MAX_MES_SIZE, &bread, 43, ec_ec, 15.0)) != inst_ok) { + a1logd(p->log, 1, "k10_do_black_cal: B9 failed\n"); + amutex_unlock(p->lock); + return ev; + } + + if (bread < 40) { + amutex_unlock(p->lock); + a1logd(p->log, 1, "k10_do_black_cal: not enough bytes returned from B9 (%d)\n",bread); + return inst_protocol_error; + } + + /* Parse the black values that resulted */ + for (k = i = 0; i < 6; i++) { + for (j = 0; j < 3; j++, k++) { + val = umes[2 + 2 * k] * 256 + umes[2 + 2 * k + 1]; + if (val < 500 || val > 2500) { + amutex_unlock(p->lock); + a1logd(p->log, 1, "k10_do_black_cal: B9 black result value out of range\n"); + return k10_interp_code(p, K10_BLACK_CAL_FAIL); + } + bvals[i][j] = val; + } + } + val = umes[2 + 2 * k] * 256 + umes[2 + 2 * k + 1]; + if (val < 500 || val > 2500) { + amutex_unlock(p->lock); + a1logd(p->log, 1, "k10_do_black_cal: B9 black thermal result value out of range\n"); + return k10_interp_code(p, K10_BLACK_CAL_FAIL); + } + thermal = val; + + if (p->log->debug >= 4) { + for (i = 0; i < 6; i++) + a1logd(p->log, 4, "Black cal. Range %d XYZ = %d %d %d\n", + i+1, bvals[i][0], bvals[i][1], bvals[i][2]); + a1logd(p->log, 4, "Thermal %d\n",thermal); + } + + /* All looks well - copy into Flash ROM */ + if ((ev = k10_command(p, "B7\r", mes, MAX_MES_SIZE, &bread, 2, ec_c, 2.0)) != inst_ok) { + amutex_unlock(p->lock); + a1logd(p->log, 1, "k10_do_black_cal: B7 failed\n"); + return ev; + } + + /* Send verification code and get error code*/ + if ((ev = k10_command(p, "{00000000}@%#\r", mes, MAX_MES_SIZE, &bread, 3, ec_e, 2.0)) != inst_ok) { + amutex_unlock(p->lock); + a1logd(p->log, 1, "k10_do_black_cal: B7 followup failed\n"); + return ev; + } + amutex_unlock(p->lock); + + a1logd(p->log, 4, "k10_do_black_cal: Done\n"); + + return inst_ok; +} + +/* - - - - - - - - - - - - - - - - */ + +/* Return needed and available inst_cal_type's */ +static inst_code k10_get_n_a_cals(inst *pp, inst_cal_type *pn_cals, inst_cal_type *pa_cals) { + kleink10 *p = (kleink10 *)pp; + inst_cal_type n_cals = inst_calt_none; + inst_cal_type a_cals = inst_calt_none; + + /* Can do a black cal, but not required */ + a_cals |= inst_calt_emis_offset; + + if (pn_cals != NULL) + *pn_cals = n_cals; + + if (pa_cals != NULL) + *pa_cals = a_cals; + + return inst_ok; +} + +/* Request an instrument calibration. */ +inst_code k10_calibrate( +inst *pp, +inst_cal_type *calt, /* Calibration type to do/remaining */ +inst_cal_cond *calc, /* Current condition/desired condition */ +char id[CALIDLEN] /* Condition identifier (ie. white reference ID) */ +) { + kleink10 *p = (kleink10 *)pp; + inst_code ev; + inst_cal_type needed, available; + + if (!p->gotcoms) + return inst_no_coms; + + if (!p->inited) + return inst_no_init; + + id[0] = '\000'; + + if ((ev = k10_get_n_a_cals((inst *)p, &needed, &available)) != inst_ok) + return ev; + + /* Translate inst_calt_all/needed into something specific */ + if (*calt == inst_calt_all + || *calt == inst_calt_needed + || *calt == inst_calt_available) { + if (*calt == inst_calt_all) + *calt = (needed & inst_calt_n_dfrble_mask) | inst_calt_ap_flag; + else if (*calt == inst_calt_needed) + *calt = needed & inst_calt_n_dfrble_mask; + else if (*calt == inst_calt_available) + *calt = available & inst_calt_n_dfrble_mask; + + a1logd(p->log,4,"k10_calibrate: doing calt 0x%x\n",calt); + + if ((*calt & inst_calt_n_dfrble_mask) == 0) /* Nothing todo */ + return inst_ok; + } + + /* See if it's a calibration we understand */ + if (*calt & ~available & inst_calt_all_mask) { + return inst_unsupported; + } + + /* Do the appropriate calibration */ + if (*calt & inst_calt_emis_offset) { + + if (*calc != inst_calc_man_em_dark) { + *calc = inst_calc_man_em_dark; + return inst_cal_setup; + } + + /* Do black offset calibration */ + if ((ev = k10_do_black_cal(p)) != inst_ok) + return ev; + + *calt &= ~inst_calc_man_em_dark; + } + return inst_ok; +} + +/* Error codes interpretation */ +static char * +k10_interp_error(inst *pp, int ec) { + kleink10 *p = (kleink10 *)pp; + ec &= inst_imask; + switch (ec) { + case K10_INTERNAL_ERROR: + return "Internal software error"; + case K10_TIMEOUT: + return "Communications timeout"; + case K10_COMS_FAIL: + return "Communications failure"; + case K10_UNKNOWN_MODEL: + return "Not a Klein K10"; + case K10_DATA_PARSE_ERROR: + return "Data from kleink10 didn't parse as expected"; +// case K10_SPOS_EMIS: +// return "Ambient filter should be removed"; +// case K10_SPOS_AMB: +// return "Ambient filter should be used"; + + case K10_OK: + return "No device error"; + + case K10_CMD_VERIFY: + return "Instrument didn't echo command code"; + case K10_BAD_RETVAL: + return "Unable to parse return instruction return code"; + + case K10_FIRMWARE: + return "Firmware error"; + + case K10_BLACK_EXCESS: + return "Black Excessive"; + case K10_BLACK_OVERDRIVE: + return "Black Overdrive"; + case K10_BLACK_ZERO: + return "Black Zero"; + + case K10_OVER_HIGH_RANGE: + return "Over High Range"; + case K10_TOP_OVER_RANGE: + return "Top over range"; + case K10_BOT_UNDER_RANGE: + return "Bottom under range"; + case K10_AIMING_LIGHTS: + return "Aiming lights on when measuring"; + + case K10_UNKNOWN: + return "Unknown error from instrument"; + + case K10_INT_MALLOC: + return "Memory allocation failure"; + + case K10_NOREFR_FOUND: + return "No refresh rate detected or failed to measure it"; + + case K10_NOTRANS_FOUND: + return "No delay measurment transition found"; + + case K10_RANGE_CHANGE: + return "Range changed during measurement"; + + case K10_BLACK_CAL_INIT: + return "Instrument hasn't been setup for black calibration"; + case K10_BLACK_CAL_FAIL: + return "Black calibration failed"; + + default: + return "Unknown error code"; + } +} + + +/* Convert a machine specific error code into an abstract dtp code */ +static inst_code +k10_interp_code(kleink10 *p, int ec) { + + ec &= inst_imask; + switch (ec) { + + case K10_OK: + return inst_ok; + + case K10_INTERNAL_ERROR: + case K10_AIMING_LIGHTS: + case K10_UNKNOWN: + case K10_INT_MALLOC: + return inst_internal_error | ec; + + case K10_TIMEOUT: + case K10_COMS_FAIL: + return inst_coms_fail | ec; + + case K10_UNKNOWN_MODEL: + return inst_unknown_model | ec; + + case K10_CMD_VERIFY: + case K10_BAD_RETVAL: + case K10_DATA_PARSE_ERROR: + return inst_protocol_error | ec; + + case K10_FIRMWARE: + case K10_BLACK_EXCESS: // ? + case K10_BLACK_OVERDRIVE: // ? + case K10_BLACK_ZERO: // ? + case K10_BLACK_CAL_INIT: + return inst_hardware_fail | ec; + + case K10_OVER_HIGH_RANGE: + case K10_TOP_OVER_RANGE: + case K10_BOT_UNDER_RANGE: + case K10_NOREFR_FOUND: + case K10_NOTRANS_FOUND: + case K10_RANGE_CHANGE: + case K10_BLACK_CAL_FAIL: + return inst_misread | ec; + + } + return inst_other_error | ec; +} + +/* Destroy ourselves */ +static void +k10_del(inst *pp) { + if (pp != NULL) { + kleink10 *p = (kleink10 *)pp; + if (p->icom != NULL) + p->icom->del(p->icom); + amutex_del(p->lock); + free(p); + } +} + +/* Return the instrument mode capabilities */ +static void k10_capabilities(inst *pp, +inst_mode *pcap1, +inst2_capability *pcap2, +inst3_capability *pcap3) { + kleink10 *p = (kleink10 *)pp; + inst_mode cap1 = 0; + inst2_capability cap2 = 0; + + cap1 |= inst_mode_emis_tele + | inst_mode_emis_spot + | inst_mode_ambient /* But cc matrix is up to user */ + | inst_mode_emis_nonadaptive + | inst_mode_colorimeter + ; + + /* can inst2_has_sensmode, but not report it asynchronously */ + cap2 |= inst2_prog_trig + | inst2_user_trig + | inst2_disptype + | inst2_has_target /* Has target lights */ + | inst2_ccmx + | inst2_emis_refr_meas + | inst2_meas_disp_update + ; + + + if (pcap1 != NULL) + *pcap1 = cap1; + if (pcap2 != NULL) + *pcap2 = cap2; + if (pcap3 != NULL) + *pcap3 = inst3_none; +} + +/* Check device measurement mode */ +static inst_code k10_check_mode(inst *pp, inst_mode m) { + inst_mode cap; + + if (!pp->gotcoms) + return inst_no_coms; + if (!pp->inited) + return inst_no_init; + + pp->capabilities(pp, &cap, NULL, NULL); + + /* Simple test */ + if (m & ~cap) + return inst_unsupported; + + if (!IMODETST(m, inst_mode_emis_spot) + && !IMODETST(m, inst_mode_emis_tele) + && !IMODETST(m, inst_mode_emis_ambient)) { + return inst_unsupported; + } + + return inst_ok; +} + +/* Set device measurement mode */ +static inst_code k10_set_mode(inst *pp, inst_mode m) { + kleink10 *p = (kleink10 *)pp; + int refrmode; + inst_code ev; + + if ((ev = k10_check_mode(pp, m)) != inst_ok) + return ev; + + p->mode = m; + + return inst_ok; +} + +/* This table gets extended on initialisation */ +/* There is 1 factory + 96 programmable + end marker */ +static inst_disptypesel k10_disptypesel[98] = { + { + inst_dtflags_default | inst_dtflags_mtx, /* flags */ + 1, /* cbid */ + "F", /* sel */ + "Factory Default", /* desc */ + 0, /* refr */ + disptech_unknown, /* disptype */ + 0 /* ix */ + }, + { + inst_dtflags_end, + 0, + "", + "", + 0, + disptech_none, + 0 + } +}; + +/* Get mode and option details */ +static inst_code k10_get_disptypesel( +inst *pp, +int *pnsels, /* Return number of display types */ +inst_disptypesel **psels, /* Return the array of display types */ +int allconfig, /* nz to return list for all configs, not just current. */ +int recreate /* nz to re-check for new ccmx & ccss files */ +) { + kleink10 *p = (kleink10 *)pp; + inst_code rv = inst_ok; + + /* Create/Re-create a current list of available display types */ + if (p->dtlist == NULL || recreate) { + if ((rv = inst_creat_disptype_list(pp, &p->ndtlist, &p->dtlist, + k10_disptypesel, 0 /* doccss*/, 1 /* doccmx */)) != inst_ok) + return rv; + } + + if (pnsels != NULL) + *pnsels = p->ndtlist; + + if (psels != NULL) + *psels = p->dtlist; + + return inst_ok; +} + +/* Given a display type entry, setup calibration from that type */ +static inst_code set_disp_type(kleink10 *p, inst_disptypesel *dentry) { + + /* If aninbuilt matrix hasn't been read from the instrument, */ + /* read it now. */ + if ((dentry->flags & inst_dtflags_mtx) + && (dentry->flags & inst_dtflags_ld) == 0) { + inst_code rv; + if ((rv = k10_read_cal_matrix(p, dentry, dentry->ix)) != inst_ok) + return rv; + } + + if (dentry->flags & inst_dtflags_ccmx) { + if (dentry->cc_cbid != 1) { + a1loge(p->log, 1, "k10: matrix must use cbid 1!\n",dentry->cc_cbid); + return inst_wrong_setup; + } + + p->dtech = dentry->dtech; + icmCpy3x3(p->ccmat, dentry->mat); + p->cbid = 0; /* Can't be a base type now */ + + } else { + p->dtech = dentry->dtech; + icmCpy3x3(p->ccmat, dentry->mat); + p->cbid = dentry->cbid; + p->ucbid = dentry->cbid; /* This is underying base if dentry is base selection */ + } + + if (p->log->debug >= 4) { + a1logd(p->log,4,"ccmat = %f %f %f\n", + p->ccmat[0][0], p->ccmat[0][1], p->ccmat[0][2]); + a1logd(p->log,4," %f %f %f\n", + p->ccmat[1][0], p->ccmat[1][1], p->ccmat[1][2]); + a1logd(p->log,4," %f %f %f\n\n", + p->ccmat[2][0], p->ccmat[2][1], p->ccmat[2][2]); + a1logd(p->log,4,"ucbid = %d, cbid = %d\n",p->ucbid, p->cbid); + a1logd(p->log,4,"\n"); + } + + return inst_ok; +} + +/* Setup the default display type */ +static inst_code set_default_disp_type(kleink10 *p) { + inst_code ev; + int i; + + if (p->dtlist == NULL) { + if ((ev = inst_creat_disptype_list((inst *)p, &p->ndtlist, &p->dtlist, + k10_disptypesel, 0 /* doccss*/, 1 /* doccmx */)) != inst_ok) + return ev; + } + + for (i = 0; !(p->dtlist[i].flags & inst_dtflags_end); i++) { + if (p->dtlist[i].flags & inst_dtflags_default) + break; + } + if (p->dtlist[i].flags & inst_dtflags_end) { + a1loge(p->log, 1, "set_default_disp_type: failed to find type!\n"); + return inst_internal_error; + } + if ((ev = set_disp_type(p, &p->dtlist[i])) != inst_ok) { + return ev; + } + + return inst_ok; +} + +/* Set the display type */ +static inst_code k10_set_disptype(inst *pp, int ix) { + kleink10 *p = (kleink10 *)pp; + inst_code ev; + inst_disptypesel *dentry; + + if (!p->gotcoms) + return inst_no_coms; + if (!p->inited) + return inst_no_init; + + if (p->dtlist == NULL) { + if ((ev = inst_creat_disptype_list((inst *)p, &p->ndtlist, &p->dtlist, + k10_disptypesel, 0 /* doccss*/, 1 /* doccmx */)) != inst_ok) + return ev; + } + + if (ix < 0 || ix >= p->ndtlist) + return inst_unsupported; + + dentry = &p->dtlist[ix]; + + if ((ev = set_disp_type(p, dentry)) != inst_ok) { + return ev; + } + + return inst_ok; +} + +/* Get the disptech and other corresponding info for the current */ +/* selected display type. Returns disptype_unknown by default. */ +/* Because refrmode can be overridden, it may not match the refrmode */ +/* of the dtech. (Pointers may be NULL if not needed) */ +static inst_code k10_get_disptechi( +inst *pp, +disptech *dtech, +int *refrmode, +int *cbid) { + kleink10 *p = (kleink10 *)pp; + if (dtech != NULL) + *dtech = p->dtech; + if (refrmode != NULL) + *refrmode = disptech_get_id(disptech_unknown)->refr; + if (cbid != NULL) + *cbid = p->cbid; + return inst_ok; +} + +/* Insert a colorimetric correction matrix in the instrument XYZ readings */ +/* This is only valid for colorimetric instruments. */ +/* To remove the matrix, pass NULL for the filter filename */ +inst_code k10_col_cor_mat( +inst *pp, +disptech dtech, /* Use disptech_unknown if not known */ \ +int cbid, /* Calibration display type base ID, 1 if unknown */\ +double mtx[3][3] +) { + kleink10 *p = (kleink10 *)pp; + + if (!p->gotcoms) + return inst_no_coms; + if (!p->inited) + return inst_no_init; + + /* We don't have to set the base type since the instrument always returns factory */ + if (cbid != 1) { + a1loge(p->log, 1, "k10: matrix must use cbid 1!\n",cbid); + return inst_wrong_setup; + } + + if (mtx == NULL) { + icmSetUnity3x3(p->ccmat); + } else { + icmCpy3x3(p->ccmat, mtx); + } + + p->dtech = dtech; + p->cbid = 0; + + if (p->log->debug >= 4) { + a1logd(p->log,4,"ccmat = %f %f %f\n", + p->ccmat[0][0], p->ccmat[0][1], p->ccmat[0][2]); + a1logd(p->log,4," %f %f %f\n", + p->ccmat[1][0], p->ccmat[1][1], p->ccmat[1][2]); + a1logd(p->log,4," %f %f %f\n\n", + p->ccmat[2][0], p->ccmat[2][1], p->ccmat[2][2]); + a1logd(p->log,4,"ucbid = %d, cbid = %d\n",p->ucbid, p->cbid); + a1logd(p->log,4,"\n"); + } + + return inst_ok; +} + +/* + * set or reset an optional mode + * + * Some options talk to the instrument, and these will + * error if it hasn't been initialised. + */ +static inst_code +k10_get_set_opt(inst *pp, inst_opt_type m, ...) +{ + kleink10 *p = (kleink10 *)pp; + char buf[MAX_MES_SIZE]; + int se; + + a1logd(p->log, 5, "k10_get_set_opt: opt type 0x%x\n",m); + + /* Record the trigger mode */ + if (m == inst_opt_trig_prog + || m == inst_opt_trig_user) { + p->trig = m; + return inst_ok; + } + + /* Get target light state */ + if (m == inst_opt_get_target_state) { + va_list args; + int *pstate, lstate = 0; + + va_start(args, m); + pstate = va_arg(args, int *); + va_end(args); + + if (pstate != NULL) + *pstate = p->lights; + + return inst_ok; + + /* Set target light state */ + } else if (m == inst_opt_set_target_state) { + inst_code ev; + va_list args; + int state = 0; + + va_start(args, m); + state = va_arg(args, int); + va_end(args); + + amutex_lock(p->lock); + + if (state == 2) { /* Toggle */ + if (p->lights) + state = 0; + else + state = 1; + } + + if (state == 1) { /* Turn on */ + if ((ev = k10_command(p, "L1\r", buf, MAX_MES_SIZE, NULL, 2+3, ec_ec, 0.5)) != inst_ok) { + amutex_unlock(p->lock); + a1logd(p->log, 1, "k10_get_set_opt: L1 failed\n"); + return ev; + } + p->lights = 1; + } else if (state == 0) { /* Turn off */ + if ((ev = k10_command(p, "L0\r", buf, MAX_MES_SIZE, NULL, 2+3, ec_ec, 0.5)) != inst_ok) { + amutex_unlock(p->lock); + a1logd(p->log, 1, "k10_get_set_opt: L0 failed\n"); + return ev; + } + p->lights = 0; + } + amutex_unlock(p->lock); + return inst_ok; + } + + if (!p->gotcoms) + return inst_no_coms; + if (!p->inited) + return inst_no_init; + + return inst_unsupported; +} + +/* Constructor */ +extern kleink10 *new_kleink10(icoms *icom, instType itype) { + kleink10 *p; + if ((p = (kleink10 *)calloc(sizeof(kleink10),1)) == NULL) { + a1loge(icom->log, 1, "new_kleink10: malloc failed!\n"); + return NULL; + } + + p->log = new_a1log_d(icom->log); + + p->init_coms = k10_init_coms; + p->init_inst = k10_init_inst; + p->capabilities = k10_capabilities; + p->check_mode = k10_check_mode; + p->set_mode = k10_set_mode; + p->get_disptypesel = k10_get_disptypesel; + p->set_disptype = k10_set_disptype; + p->get_disptechi = k10_get_disptechi; + p->get_set_opt = k10_get_set_opt; + p->read_sample = k10_read_sample; + p->read_refrate = k10_read_refrate; + p->get_n_a_cals = k10_get_n_a_cals; + p->calibrate = k10_calibrate; + p->col_cor_mat = k10_col_cor_mat; + p->meas_delay = k10_meas_delay; + p->white_change = k10_white_change; + p->interp_error = k10_interp_error; + p->del = k10_del; + + p->icom = icom; + p->itype = icom->itype; + p->dtech = disptech_unknown; + + amutex_init(p->lock); + + /* Attempt to get the calibration list */ + k10_init_coms((inst *)p, baud_nc, fc_nc, 0.0); + + return p; +} + diff --git a/spectro/kleink10.h b/spectro/kleink10.h new file mode 100644 index 0000000..4dcc334 --- /dev/null +++ b/spectro/kleink10.h @@ -0,0 +1,121 @@ +#ifndef KLEINK10_H + +/* + * Argyll Color Correction System + * + * Klein K10 related defines + * + * Author: Graeme W. Gill + * Date: 29/4/2014 + * + * Copyright 2001 - 2014, Graeme W. Gill + * All rights reserved. + * + * This material is licenced under the GNU GENERAL PUBLIC LICENSE Version 2 or later :- + * see the License2.txt file for licencing details. + * + * Based on DTP02.h & specbos.h + */ + +/* + If you make use of the instrument driver code here, please note + that it is the author(s) of the code who take responsibility + for its operation. Any problems or queries regarding driving + instruments with the Argyll drivers, should be directed to + the Argyll's author(s), and not to any other party. + + If there is some instrument feature or function that you + would like supported here, it is recommended that you + contact Argyll's author(s) first, rather than attempt to + modify the software yourself, if you don't have firm knowledge + of the instrument communicate protocols. There is a chance + that an instrument could be damaged by an incautious command + sequence, and the instrument companies generally cannot and + will not support developers that they have not qualified + and agreed to support. + */ + +#include "inst.h" + +/* Fake Error codes */ +#define K10_INTERNAL_ERROR 0xff01 /* Internal software error */ +#define K10_TIMEOUT 0xff02 /* Communication timeout */ +#define K10_COMS_FAIL 0xff03 /* Communication failure */ +#define K10_UNKNOWN_MODEL 0xff04 /* Not a JETI kleink10 */ +#define K10_DATA_PARSE_ERROR 0xff05 /* Read data parsing error */ + +//#define K10_SPOS_EMIS 0xff06 /* Needs to be in emsissive configuration */ +//#define K10_SPOS_AMB 0xff07 /* Needs to be in ambient configuration */ + +/* Real instrument error code */ +#define K10_OK 0 + +/* Other errors */ +#define K10_CMD_VERIFY 0x1000 /* Didn't echo the commamd */ +#define K10_BAD_RETVAL 0x1001 /* Error code return value can't be parsed */ + +#define K10_FIRMWARE 0x2001 /* Firmware error */ + +#define K10_BLACK_EXCESS 0x2010 /* Black Excessive */ +#define K10_BLACK_OVERDRIVE 0x2011 /* Black Overdrive */ +#define K10_BLACK_ZERO 0x2012 /* Black Zero */ + +#define K10_OVER_HIGH_RANGE 0x2020 /* Over High Range */ +#define K10_TOP_OVER_RANGE 0x2021 /* Top over range */ +#define K10_BOT_UNDER_RANGE 0x2022 /* Bottom under range */ +#define K10_AIMING_LIGHTS 0x2023 /* Aiming lights on when measuring */ + +#define K10_RANGE_CHANGE 0x2024 /* Range changed during measurment */ +#define K10_NOREFR_FOUND 0x2025 /* Unable to measure refresh rate */ +#define K10_NOTRANS_FOUND 0x2026 /* No delay measurment transition found */ + +#define K10_BLACK_CAL_INIT 0x2027 /* Instrument not setup for bcal */ +#define K10_BLACK_CAL_FAIL 0x2028 /* Black calibration failed */ + +#define K10_UNKNOWN 0x2030 /* Unknown error code */ + +#define K10_INT_MALLOC 0x3000 /* Malloc failed */ + +typedef enum { + k10_k1 = 0, /* K-1 */ + k10_k8 = 1, /* K-8 */ + k10_k10 = 2, /* K-10 */ + k10_k10a = 3, /* K-10-A */ + k10_kv10a = 4, /* KV-10-A */ +} k10_dtype; + +/* Klein K10 communication object */ +struct _kleink10 { + INST_OBJ_BASE + + amutex lock; /* Command lock */ + + k10_dtype model; /* Klein kleink10 model number */ + char serial_no[21]; /* Serial number */ + char firm_ver[21]; /* Firmware version number */ + int comdel; /* Estimated communication delay to the instrument */ + + inst_mode mode; /* Currently instrument mode */ + + inst_opt_type trig; /* Reading trigger mode */ + + int autor; /* Auto range state, nz = on */ + int lights; /* Target light state, nz = on */ + + inst_disptypesel *dtlist; /* Current display Type list */ + int ndtlist; /* Number of valid dtlist entries */ + int cbid; /* current calibration base ID, 0 if not a base */ + int ucbid; /* Underlying base ID if being used for matrix, 0 othewise */ + disptech dtech; /* Display technology enum */ + double ccmat[3][3]; /* Colorimeter correction matrix */ + + volatile double whitestamp; /* meas_delay() white timestamp */ + + }; typedef struct _kleink10 kleink10; + +/* Constructor */ +extern kleink10 *new_kleink10(icoms *icom, instType itype); + + +#define KLEINK10_H +#endif /* KLEINK10_H */ diff --git a/spectro/linear.cal b/spectro/linear.cal index 5b494f9..da60b9e 100644 --- a/spectro/linear.cal +++ b/spectro/linear.cal @@ -2,7 +2,7 @@ CAL DESCRIPTOR "Argyll Device Calibration Curves" ORIGINATOR "Argyll synthcal" -CREATED "Fri Jan 31 13:50:43 2014" +CREATED "Tue Apr 28 15:22:30 2015" KEYWORD "DEVICE_CLASS" DEVICE_CLASS "DISPLAY" KEYWORD "COLOR_REP" diff --git a/spectro/madvrwin.c b/spectro/madvrwin.c index 9769b71..b96cd80 100644 --- a/spectro/madvrwin.c +++ b/spectro/madvrwin.c @@ -18,6 +18,7 @@ #include #ifdef NT # include +# include #endif #ifdef UNIX # include @@ -71,13 +72,27 @@ # define KEY_WOW64_32KEY (0x0200) #endif +/* Incase shlwapi.h doesn't declare this */ +#include +typedef struct _ADLLVERSIONINFO2 +{ + DLLVERSIONINFO info1; + DWORD dwFlags; + ULONGLONG ullVersion; +} ADLLVERSIONINFO2; +#include + HMODULE HcNetDll = NULL; BOOL (WINAPI *madVR_BlindConnect)(BOOL searchLan, DWORD timeOut) = NULL; +BOOL (WINAPI *madVR_GetVersion)(DWORD *version); BOOL (WINAPI *madVR_SetOsdText)(LPCWSTR text); BOOL (WINAPI *madVR_Disable3dlut)() = NULL; BOOL (WINAPI *madVR_GetDeviceGammaRamp)(LPVOID ramp) = NULL; BOOL (WINAPI *madVR_SetDeviceGammaRamp)(LPVOID ramp) = NULL; -BOOL (WINAPI *madVR_SetBackground)(int patternAreaInPercent, COLORREF backgroundColor) = NULL; +BOOL (WINAPI *madVR_GetPatternConfig)(int *patternAreaInPercent, int *backgroundLevelInPercent, + int *backgroundMode, int *blackBorderWidth) = NULL; +BOOL (WINAPI *madVR_SetPatternConfig)(int patternAreaInPercent, int backgroundLevelInPercent, + int backgroundMode, int blackBorderWidth) = NULL; BOOL (WINAPI *madVR_ShowRGB)(double r, double g, double b) = NULL; BOOL (WINAPI *madVR_SetProgressBarPos)(int currentPos, int maxPos); BOOL (WINAPI *madVR_Disconnect)() = NULL; @@ -86,6 +101,10 @@ BOOL (WINAPI *madVR_Disconnect)() = NULL; /* Return NZ on failure */ static int initMadVR(dispwin *p) { wchar_t *dllname; + WCHAR modname[MAX_PATH]; + DWORD hnd; + DWORD len = 0; + WORD v1 = 0, v2 = 0, v3 = 0, v4 = 0; /* MadVR version */ if (sizeof(dllname) > 4) /* Compiled as 64 bit */ dllname = L"madHcNet64.dll"; @@ -119,29 +138,60 @@ static int initMadVR(dispwin *p) { RegCloseKey(hk1); } } + if (HcNetDll != NULL) { + HRESULT (WINAPI *dllgetver)(ADLLVERSIONINFO2 *) = NULL; + + *(FARPROC*)&dllgetver = GetProcAddress(HcNetDll, "DllGetVersion"); + + if (dllgetver != NULL) { + ADLLVERSIONINFO2 ver; + + ver.info1.cbSize = sizeof(ADLLVERSIONINFO2); + dllgetver(&ver); + + v1 = 0xffff & (ver.ullVersion >> 48); + v2 = 0xffff & (ver.ullVersion >> 32); + v3 = 0xffff & (ver.ullVersion >> 16); + v4 = 0xffff & ver.ullVersion; + + } else { + debugr2((errout,"MadVR DllGetVersion failed - can't determine DLL version\n")); + } + } + if (HcNetDll != NULL) { *(FARPROC*)&madVR_BlindConnect = GetProcAddress(HcNetDll, "madVR_BlindConnect"); + *(FARPROC*)&madVR_GetVersion = GetProcAddress(HcNetDll, "madVR_GetVersion"); *(FARPROC*)&madVR_SetOsdText = GetProcAddress(HcNetDll, "madVR_SetOsdText"); *(FARPROC*)&madVR_Disable3dlut = GetProcAddress(HcNetDll, "madVR_Disable3dlut"); *(FARPROC*)&madVR_GetDeviceGammaRamp = GetProcAddress(HcNetDll, "madVR_GetDeviceGammaRamp"); *(FARPROC*)&madVR_SetDeviceGammaRamp = GetProcAddress(HcNetDll, "madVR_SetDeviceGammaRamp"); - *(FARPROC*)&madVR_SetBackground = GetProcAddress(HcNetDll, "madVR_SetBackground"); + *(FARPROC*)&madVR_GetPatternConfig = GetProcAddress(HcNetDll, "madVR_GetPatternConfig"); + *(FARPROC*)&madVR_SetPatternConfig = GetProcAddress(HcNetDll, "madVR_SetPatternConfig"); *(FARPROC*)&madVR_ShowRGB = GetProcAddress(HcNetDll, "madVR_ShowRGB"); *(FARPROC*)&madVR_SetProgressBarPos = GetProcAddress(HcNetDll, "madVR_SetProgressBarPos"); *(FARPROC*)&madVR_Disconnect = GetProcAddress(HcNetDll, "madVR_Disconnect"); if (madVR_BlindConnect + && madVR_GetVersion && madVR_SetOsdText && madVR_Disable3dlut && madVR_GetDeviceGammaRamp && madVR_SetDeviceGammaRamp - && madVR_SetBackground + && madVR_GetPatternConfig + && madVR_SetPatternConfig && madVR_ShowRGB && madVR_SetProgressBarPos && madVR_Disconnect) { + DWORD ver = 0; + /* Return value is unclear */ + if (!madVR_GetVersion(&ver)) + debugr2((errout,"MadVR_GetVersion failed - can't determine MadVR version\n")); + + debugr2((errout,"Found all required functions in %ls V%d.%d.%d.%d MadVR V%x.%x.%x.%x functions\n",dllname,v1,v2,v3,v4, 0xff & (ver >> 24), 0xff & (ver >> 16), 0xff & (ver >> 8), 0xff & ver)); return 0; } - debugr2((errout,"Failed to locate function in %ls\n",dllname)); + debugr2((errout,"Failed to locate MadVR function in %ls %d.%d.%d.%d\n",dllname,v1,v2,v3,v4)); FreeLibrary(HcNetDll); } else { debugr2((errout,"Failed to load %ls\n",dllname)); @@ -198,7 +248,7 @@ static ramdac *madvrwin_get_ramdac(dispwin *p) { return NULL; } - if (madVR_GetDeviceGammaRamp(vals) == 0) { + if (!madVR_GetDeviceGammaRamp(vals)) { free(r); debugr2((errout,"madvrwin_get_ramdac failed on madVR_GetDeviceGammaRamp()\n")); return NULL; @@ -237,7 +287,7 @@ static int madvrwin_set_ramdac(dispwin *p, ramdac *r, int persist) { } } - if (madVR_SetDeviceGammaRamp(vals) == 0) { + if (!madVR_SetDeviceGammaRamp(vals)) { debugr2((errout,"madvrwin_set_ramdac failed on madVR_SetDeviceGammaRamp()\n")); rv = 1; } else { @@ -282,8 +332,7 @@ double r, double g, double b /* Color values 0.0 - 1.0 */ int j; double orgb[3]; /* Previous RGB value */ double kr, kf; - int update_delay = p->update_delay; - double xdelay = 0.0; /* Extra delay for response time */ + int update_delay = 0; debugr("madvrwin_set_color called\n"); @@ -299,44 +348,40 @@ double r, double g, double b /* Color values 0.0 - 1.0 */ return 1; } - /* Don't want extra delay if we're measuring update delay */ - if (update_delay != 0 && p->do_resp_time_del) { - /* Compute am expected response time for the change in level */ - kr = DISPLAY_RISE_TIME/log(1 - 0.9); /* Exponent constant */ - kf = DISPLAY_FALL_TIME/log(1 - 0.9); /* Exponent constant */ -//printf("~1 k2 = %f\n",k2); - for (j = 0; j < 3; j++) { - double el, dl, n, t; - - el = pow(p->rgb[j], 2.2); - dl = el - pow(orgb[j], 2.2); /* Change in level */ - if (fabs(dl) > 0.01) { /* More than 1% change in level */ - n = DISPLAY_SETTLE_AIM * el; - if (n < DISPLAY_ABS_AIM) - n = DISPLAY_ABS_AIM; -//printf("~1 sl %f, el %f, log (%f / %f)\n",sl,el,n,fabs(sl - el)); - if (dl > 0.0) - t = kr * log(n/dl); - else - t = kf * log(n/-dl); - - if (t > xdelay) - xdelay = t; - } - } -//printf("~1 xdelay = %f secs\n",xdelay); - xdelay *= 1000.0; /* To msec */ - /* This is kind of a fudge since update delay is after latency, */ - /* but displays with long delay (ie. CRT) have short latency, and visa versa */ - if ((int)xdelay > update_delay) - update_delay = (int)xdelay; + /* Allow for display update & instrument delays */ + update_delay = dispwin_compute_delay(p, orgb); + debugr2((errout, "madvrwin_set_color delaying %d msec\n",update_delay)); + msec_sleep(update_delay); + + return 0; +} + +/* Set/unset the blackground color flag */ +/* Return nz on error */ +static int madvrwin_set_bg(dispwin *p, int blackbg) { + int perc, bgperc, bgmode, border; + + p->blackbg = blackbg; + + /* Parameters that shouldn't change can be set to -1, but this doesn't seem */ + /* to work for background level, so get current background level */ + if (!madVR_GetPatternConfig(&perc, &bgperc, &bgmode, &border)) { + debugr2((errout,"madVR_GetPatternConfig failed\n")); + return 1; } + debugr2((errout,"madvrwin_set_bg: got pattern config %i, %i, %i, %i\n", + perc, bgperc, bgmode, border)); - /* Allow some time for the display to update before */ - /* a measurement can take place. This allows for CRT */ - /* refresh, or LCD processing/update time, + */ - /* display settling time (quite long for smaller LCD changes). */ - msec_sleep(update_delay); + /* Default test window is 10% of the width/height = 1% of the area*/ + perc = (int)((p->width/100.0 * 0.1 * p->height/100.0 * 0.1) * 100.0 + 0.5); + + /* Background level is 1..100 in percent */ + debugr2((errout,"madvrwin_set_bg: setting pattern config %i, %i\n", + perc, blackbg ? 0 : bgperc)); + if (!madVR_SetPatternConfig(perc, blackbg ? 0 : bgperc, -1, -1)) { + debugr2((errout,"madVR_SetPatternConfig failed\n")); + return 1; + } return 0; } @@ -352,20 +397,6 @@ static int madvrwin_set_pinfo(dispwin *p, int pno, int tno) { return 0; } -/* ----------------------------------------------- */ -/* Set an update delay, and return the previous value */ -/* Value can be set to zero, but othewise will be forced */ -/* to be >= min_update_delay */ -static int madvrwin_set_update_delay( -dispwin *p, -int update_delay) { - int cval = p->update_delay; - p->update_delay = update_delay; - if (update_delay != 0 && p->update_delay < p->min_update_delay) - p->update_delay = p->min_update_delay; - return cval; -} - /* ----------------------------------------------- */ /* Set the shell set color callout */ void madvrwin_set_callout( @@ -434,14 +465,15 @@ int ddebug /* >0 to print debug statements to stderr */ ) { dispwin *p = NULL; char *cp; - struct mg_context *mg; const char *options[3]; char port[50]; debug("new_madvrwin called with native = %d\n"); - if (out_tvenc) + if (out_tvenc) { + if (ddebug) fprintf(stderr,"new_madvrwin failed because out_tvenc set\n"); return NULL; + } if ((p = (dispwin *)calloc(sizeof(dispwin), 1)) == NULL) { if (ddebug) fprintf(stderr,"new_madvrwin failed because malloc failed\n"); @@ -450,21 +482,26 @@ int ddebug /* >0 to print debug statements to stderr */ /* !!!! Make changes in dispwin.c & webwin.c as well !!!! */ p->name = strdup("Web Window"); + p->width = width; + p->height = height; p->nowin = nowin; p->native = native; p->out_tvenc = 0; p->blackbg = blackbg; p->ddebug = ddebug; - p->get_ramdac = madvrwin_get_ramdac; - p->set_ramdac = madvrwin_set_ramdac; - p->install_profile = madvrwin_install_profile; - p->uninstall_profile = madvrwin_uninstall_profile; - p->get_profile = madvrwin_get_profile; - p->set_color = madvrwin_set_color; - p->set_pinfo = madvrwin_set_pinfo; - p->set_update_delay = madvrwin_set_update_delay; - p->set_callout = madvrwin_set_callout; - p->del = madvrwin_del; + p->get_ramdac = madvrwin_get_ramdac; + p->set_ramdac = madvrwin_set_ramdac; + p->install_profile = madvrwin_install_profile; + p->uninstall_profile = madvrwin_uninstall_profile; + p->get_profile = madvrwin_get_profile; + p->set_color = madvrwin_set_color; + p->set_bg = madvrwin_set_bg; + p->set_pinfo = madvrwin_set_pinfo; + p->set_update_delay = dispwin_set_update_delay; + p->set_settling_delay = dispwin_set_settling_delay; + p->enable_update_delay = dispwin_enable_update_delay; + p->set_callout = madvrwin_set_callout; + p->del = madvrwin_del; debugr2((errout, "new_madvrwin got native = %d\n",native)); @@ -476,31 +513,19 @@ int ddebug /* >0 to print debug statements to stderr */ p->rgb[0] = p->rgb[1] = p->rgb[2] = 0.5; /* Set Grey as the initial test color */ - p->min_update_delay = 20; - - if ((cp = getenv("ARGYLL_MIN_DISPLAY_UPDATE_DELAY_MS")) != NULL) { - p->min_update_delay = atoi(cp); - if (p->min_update_delay < 20) - p->min_update_delay = 20; - if (p->min_update_delay > 60000) - p->min_update_delay = 60000; - debugr2((errout, "new_madvrwin: Minimum display update delay set to %d msec\n",p->min_update_delay)); - } - - p->update_delay = DISPLAY_UPDATE_DELAY; /* Default update delay */ - if (p->update_delay < p->min_update_delay) - p->update_delay = p->min_update_delay; + dispwin_set_default_delays(p); p->pdepth = 8; /* Assume this */ p->edepth = 16; if (initMadVR(p)) { + debugr2((errout,"Failed to locate MadVR .dll or functions\n")); free(p); return NULL; } if (!madVR_BlindConnect(0, 1000)) { - debugr2((errout,"Failed to locate MadVR\n")); + debugr2((errout,"Failed to connect to MadVR\n")); free(p); return NULL; } @@ -510,12 +535,7 @@ int ddebug /* >0 to print debug statements to stderr */ madVR_Disable3dlut(); } - if (blackbg) { - int perc; - - perc = (int)(width * height * 100 + 0.5); - madVR_SetBackground(perc, 0x0000); - } + p->set_bg(p, blackbg); /* Create a suitable description */ { diff --git a/spectro/mongoose.c b/spectro/mongoose.c index e1df94a..019101e 100644 --- a/spectro/mongoose.c +++ b/spectro/mongoose.c @@ -18,6 +18,34 @@ // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN // THE SOFTWARE. +/* + Fedora 18+ and similar pose a problem with their use of FirewallD. + + Either the user has to enable tcp ports 8080 & 8081 in their zone using + firewall-config, or we have to add a DBUS function here to add and then + remove the port dynamically, which will probably require root access :-( + + There's no doco for the last - see: + gdbus introspect --system --dest org.fedoraproject.FirewallD1 + --object-path /org/fedoraproject/FirewallD1 + + + Maybe we could supply a firewalld.service configuration file for + the Argyll apps ? We'd have to use a fixed port no. though ? + + Something like: + + + + ArgyllCMS + Allow web window and ChromeCast access + + + + + added to /usr/lib/firewalld/services + */ + #if defined(_WIN32) #define _CRT_SECURE_NO_WARNINGS // Disable deprecation warning in VS2005 #else @@ -183,6 +211,7 @@ typedef struct DIR { #include #include #include +#include #include #include #include @@ -4026,10 +4055,110 @@ static int set_ports_option(struct mg_context *ctx) { if (!success) { close_all_listening_sockets(ctx); } - return success; } +// Get the allocated port number of the first port 0 listener, +// or the last non-0 port listener. +// Return 0 on error +int mg_get_listening_port(struct mg_context *ctx) { + struct socket *sp, *tmp; + union usa rsa; /* resolved socket address */ + socklen_t rsa_len = sizeof(rsa); + int rv = 0; + for (sp = ctx->listening_sockets; sp != NULL; sp = sp->next) { + if (ntohs(sp->lsa.sin.sin_port) == 0) { + if (!getsockname(ctx->listening_sockets->sock, (struct sockaddr *)&rsa, &rsa_len)) + rv = ntohs(rsa.sin.sin_port); + break; + } else { + rv = ntohs(sp->lsa.sin.sin_port); /* Return the last port found */ + } + } + return rv; +} + +// Get a URL for accessing the server. */ +// Return NULL on error. Free after use. +char *mg_get_url(struct mg_context *ctx) { + int portno = mg_get_listening_port(ctx); + char *rv = NULL; + + if (portno == 0) + return NULL; + + /* Create a suitable URL for accessing the server */ +#if _WIN32 + { + char szHostName[255]; + struct hostent *host_entry; + char *localIP; + char buf[100]; + + /* We assume WinSock has been started by mongoose */ + + // Get the local hostname + gethostname(szHostName, 255); + host_entry = gethostbyname(szHostName); + /* Get first entry */ + localIP = inet_ntoa(*(struct in_addr *)*host_entry->h_addr_list); + + sprintf(buf,"http://%s:%d/",localIP,portno); + rv = strdup(buf); + } +#else + { + struct ifaddrs *ifAddrStruct = NULL; + struct ifaddrs *ifa = NULL; + void *tmpAddrPtr = NULL; + char abuf[INET_ADDRSTRLEN] = ""; +#ifdef AF_INET6 + char abuf6[INET6_ADDRSTRLEN] = ""; +#endif + char buf[100]; + + getifaddrs(&ifAddrStruct); + + /* Look first for the first IPV4 address */ + for (ifa = ifAddrStruct; ifa != NULL; ifa = ifa->ifa_next) { +#ifdef AF_INET6 + if (ifa->ifa_addr->sa_family==AF_INET) { /* IP4 ? */ +#endif + if (strncmp(ifa->ifa_name, "lo",2) == 0 || abuf[0] != '\000') + continue; /* Skip local */ + tmpAddrPtr = &((struct sockaddr_in *)ifa->ifa_addr)->sin_addr; + inet_ntop(AF_INET, tmpAddrPtr, abuf, INET_ADDRSTRLEN); + sprintf(buf,"http://%s:%d/",abuf,portno); + break; + } + } + +#ifdef AF_INET6 + /* If that didn't work, look for IPV6 address */ + if (ifa == NULL) { + for (ifa = ifAddrStruct; ifa != NULL; ifa = ifa->ifa_next) { + if (ifa->ifa_addr->sa_family==AF_INET6) { /* IP6 ? */ + if (strncmp(ifa->ifa_name, "lo",2) == 0 || abuf6[0] != '\000') + continue; /* Skip local */ + tmpAddrPtr = &((struct sockaddr_in6 *)ifa->ifa_addr)->sin6_addr; + inet_ntop(AF_INET6, tmpAddrPtr, abuf6, INET6_ADDRSTRLEN); + sprintf(buf,"http://[%s]:%d/",abuf6,portno); + break; + } + } + } +#endif + if (ifAddrStruct != NULL) + freeifaddrs(ifAddrStruct); + + rv = strdup(buf); + } +#endif /* _WIN32 */ + + return rv; +} + + static void log_header(const struct mg_connection *conn, const char *header, FILE *fp) { const char *header_value; diff --git a/spectro/mongoose.h b/spectro/mongoose.h index 708cf73..1ee0c47 100644 --- a/spectro/mongoose.h +++ b/spectro/mongoose.h @@ -107,11 +107,23 @@ typedef void *(*mg_callback_t)(enum mg_event event, struct mg_connection *conn); // Please refer to http://code.google.com/p/mongoose/wiki/MongooseManual // for the list of valid option and their possible values. // +// If one of the listening ports is "0", then it will be automatically +// allocated to a free port by the system, and the port that gets allocated +// may be retrieved by calling mg_get_listening_port() bellow. +// // Return: // web server context, or NULL on error. struct mg_context *mg_start(mg_callback_t callback, void *user_data, const char **options); +// Get the allocated port number of the first port 0 listener, +// or the last non-0 port listener. +// Return 0 on error +int mg_get_listening_port(struct mg_context *ctx); + +// Get a URL for accessing the server. */ +// Return NULL on error. Free after use. +char *mg_get_url(struct mg_context *ctx); // Stop the web server. // diff --git a/spectro/munki.c b/spectro/munki.c index 5d4de2d..cc875c9 100644 --- a/spectro/munki.c +++ b/spectro/munki.c @@ -157,6 +157,7 @@ munki_determine_capabilities(munki *p) { } /* Return current or given configuration available measurement modes. */ +/* NOTE that conf_ix values shoudn't be changed, as it is used as a persistent key */ static inst_code munki_meas_config( inst *pp, inst_mode *mmodes, @@ -277,6 +278,7 @@ ipatch *vals) { /* Pointer to array of instrument patch values */ rv = munki_imp_measure(p, vals, npatch, 1); + return munki_interp_code(p, rv); } @@ -298,6 +300,7 @@ instClamping clamp) { /* Clamp XYZ/Lab to be +ve */ rv = munki_imp_measure(p, val, 1, clamp); + return munki_interp_code(p, rv); } @@ -314,6 +317,9 @@ double *ref_rate) { if (!p->inited) return inst_no_init; + if (ref_rate != NULL) + *ref_rate = 0.0; + rv = munki_imp_meas_refrate(p, ref_rate); @@ -324,7 +330,8 @@ double *ref_rate) { static inst_code munki_meas_delay( inst *pp, -int *msecdelay) { +int *pdispmsec, /* Return display update delay in msec */ +int *pinstmsec) { /* Return instrument reaction time in msec */ munki *p = (munki *)pp; munki_code rv; @@ -333,11 +340,20 @@ int *msecdelay) { if (!p->inited) return inst_no_init; - rv = munki_imp_meas_delay(p, msecdelay); + rv = munki_imp_meas_delay(p, pdispmsec, pinstmsec); return munki_interp_code(p, rv); } +/* Timestamp the white patch change during meas_delay() */ +static inst_code munki_white_change( +inst *pp, +int init) { + munki *p = (munki *)pp; + + return munki_imp_white_change(p, init); +} + /* Return needed and available inst_cal_type's */ static inst_code munki_get_n_a_cals(inst *pp, inst_cal_type *pn_cals, inst_cal_type *pa_cals) { munki *p = (munki *)pp; @@ -348,7 +364,7 @@ static inst_code munki_get_n_a_cals(inst *pp, inst_cal_type *pn_cals, inst_cal_t } /* Request an instrument calibration. */ -inst_code munki_calibrate( +static inst_code munki_calibrate( inst *pp, inst_cal_type *calt, /* Calibration type to do/remaining */ inst_cal_cond *calc, /* Current condition/desired condition */ @@ -522,7 +538,6 @@ munki_interp_code(munki *p, munki_code ec) { switch (ec) { case MUNKI_OK: - return inst_ok; case MUNKI_COMS_FAIL: @@ -637,7 +652,7 @@ static inst_config munki_config_enum(inst *pp, int ec) { } /* Return the instrument capabilities */ -void munki_capabilities(inst *pp, +static void munki_capabilities(inst *pp, inst_mode *pcap1, inst2_capability *pcap2, inst3_capability *pcap3) { @@ -694,7 +709,7 @@ static mk_mode munki_convert_mode(munki *p, inst_mode m) { } /* Check device measurement mode */ -inst_code munki_check_mode(inst *pp, inst_mode m) { +static inst_code munki_check_mode(inst *pp, inst_mode m) { munki *p = (munki *)pp; mk_mode mmode = 0; @@ -710,7 +725,7 @@ inst_code munki_check_mode(inst *pp, inst_mode m) { } /* Set device measurement mode */ -inst_code munki_set_mode(inst *pp, inst_mode m) { +static inst_code munki_set_mode(inst *pp, inst_mode m) { munki *p = (munki *)pp; mk_mode mmode = 0; inst_mode cap = p->cap; @@ -742,7 +757,11 @@ static inst_code munki_get_set_opt(inst *pp, inst_opt_type m, ...) { munki *p = (munki *)pp; - if (m == inst_opt_noinitcalib) { + if (m == inst_opt_initcalib) { /* default */ + munki_set_noinitcalib(p, 0, 0); + return inst_ok; + + } else if (m == inst_opt_noinitcalib) { va_list args; int losecs = 0; @@ -753,9 +772,12 @@ munki_get_set_opt(inst *pp, inst_opt_type m, ...) { munki_set_noinitcalib(p, 1, losecs); return inst_ok; - } else if (m == inst_opt_initcalib) { - munki_set_noinitcalib(p, 0, 0); - return inst_ok; + + } else if (m == inst_opt_askcalib) { /* default */ + munki_set_nocalibask(p, 0); + + } else if (m == inst_opt_noaskcalib) { + munki_set_nocalibask(p, 1); /* Record the trigger mode */ } else if (m == inst_opt_trig_prog @@ -944,6 +966,7 @@ extern munki *new_munki(icoms *icom, instType itype) { p->get_n_a_cals = munki_get_n_a_cals; p->calibrate = munki_calibrate; p->meas_delay = munki_meas_delay; + p->white_change = munki_white_change; p->interp_error = munki_interp_error; p->config_enum = munki_config_enum; p->del = munki_del; diff --git a/spectro/munki_imp.c b/spectro/munki_imp.c index 9f431cc..ee7b2b1 100644 --- a/spectro/munki_imp.c +++ b/spectro/munki_imp.c @@ -165,33 +165,6 @@ 5 = dump tables etc */ -/* ============================================================ */ - -// Print bytes as hex to debug log */ -static void dump_bytes(a1log *log, char *pfx, unsigned char *buf, int base, int len) { - int i, j, ii; - char oline[200] = { '\000' }, *bp = oline; - for (i = j = 0; i < len; i++) { - if ((i % 16) == 0) - bp += sprintf(bp,"%s%04x:",pfx,base+i); - bp += sprintf(bp," %02x",buf[i]); - if ((i+1) >= len || ((i+1) % 16) == 0) { - for (ii = i; ((ii+1) % 16) != 0; ii++) - bp += sprintf(bp," "); - bp += sprintf(bp," "); - for (; j <= i; j++) { - if (!(buf[j] & 0x80) && isprint(buf[j])) - bp += sprintf(bp,"%c",buf[j]); - else - bp += sprintf(bp,"."); - } - bp += sprintf(bp,"\n"); - a1logd(log,0,"%s",oline); - bp = oline; - } - } -} - /* ============================================================ */ /* Debugging plot support */ @@ -532,23 +505,6 @@ munki_code munki_imp_init(munki *p) { return MUNKI_INT_ASSERT; } - /* Dump the eeprom contents as a block */ - if (p->log->debug >= 7) { - int base, size; - - a1logd(p->log,7, "EEPROM contents:\n"); - - size = 8192; - for (base = 0; base < (2 * 8192); base += 8192) { - unsigned char eeprom[8192]; - - if ((ev = munki_readEEProm(p, eeprom, base, size)) != MUNKI_OK) - return ev; - - dump_bytes(p->log, " ", eeprom, base, size); - } - } - /* Tick in seconds */ m->intclkp = (double)m->tickdur * 1e-6; @@ -566,6 +522,23 @@ munki_code munki_imp_init(munki *p) { if ((ev = munki_getversionstring(p, m->vstring)) != MUNKI_OK) return ev; + /* Dump the eeprom contents as a block */ + if (p->log->debug >= 7) { + int base, size; + + a1logd(p->log,7, "EEPROM contents:\n"); + + size = 1024; /* read size == buffer size */ + for (base = 0; base < (2 * 8192); base += size) { + unsigned char eeprom[1024]; + + if ((ev = munki_readEEProm(p, eeprom, base, size)) != MUNKI_OK) + return ev; + + adump_bytes(p->log, " ", eeprom, base, size); + } + } + /* Read the calibration size */ if ((ev = munki_readEEProm(p, buf, 4, 4)) != MUNKI_OK) return ev; @@ -912,6 +885,9 @@ munki_code munki_imp_get_n_a_cals(munki *p, inst_cal_type *pn_cals, inst_cal_typ time_t curtime = time(NULL); inst_cal_type n_cals = inst_calt_none; inst_cal_type a_cals = inst_calt_none; + int idark_valid = cs->idark_valid; /* Current state of calib */ + int dark_valid = cs->dark_valid; + int cal_valid = cs->cal_valid; a1logd(p->log,3,"munki_imp_get_n_a_cals: checking mode %d\n",m->mmode); @@ -919,43 +895,43 @@ munki_code munki_imp_get_n_a_cals(munki *p, inst_cal_type *pn_cals, inst_cal_typ a1logd(p->log,4,"curtime %u, iddate %u, ddate %u, cfdate %u\n",curtime,cs->iddate,cs->ddate,cs->cfdate); if ((curtime - cs->iddate) > DCALTOUT) { a1logd(p->log,3,"Invalidating adaptive dark cal as %d secs from last cal\n",curtime - cs->iddate); - cs->idark_valid = 0; + idark_valid = 0; } if ((curtime - cs->ddate) > DCALTOUT) { a1logd(p->log,3,"Invalidating dark cal as %d secs from last cal\n",curtime - cs->ddate); - cs->dark_valid = 0; + dark_valid = 0; } if (!cs->emiss && (curtime - cs->cfdate) > WCALTOUT) { a1logd(p->log,3,"Invalidating white cal as %d secs from last cal\n",curtime - cs->cfdate); - cs->cal_valid = 0; + cal_valid = 0; } if (cs->reflective) { - if (!cs->dark_valid + if (!dark_valid || (cs->want_dcalib && !m->noinitcalib)) n_cals |= inst_calt_ref_dark; a_cals |= inst_calt_ref_dark; - if (!cs->cal_valid + if (!cal_valid || (cs->want_calib && !m->noinitcalib)) n_cals |= inst_calt_ref_white; a_cals |= inst_calt_ref_white; } if (cs->emiss) { - if ((!cs->adaptive && !cs->dark_valid) - || (cs->adaptive && !cs->idark_valid) + if ((!cs->adaptive && !dark_valid) + || (cs->adaptive && !idark_valid) || (cs->want_dcalib && !m->noinitcalib)) n_cals |= inst_calt_em_dark; a_cals |= inst_calt_em_dark; } if (cs->trans) { - if ((!cs->adaptive && !cs->dark_valid) - || (cs->adaptive && !cs->idark_valid) + if ((!cs->adaptive && !dark_valid) + || (cs->adaptive && !idark_valid) || (cs->want_dcalib && !m->noinitcalib)) n_cals |= inst_calt_trans_dark; a_cals |= inst_calt_trans_dark; - if (!cs->cal_valid + if (!cal_valid || (cs->want_calib && !m->noinitcalib)) n_cals |= inst_calt_trans_vwhite; a_cals |= inst_calt_trans_vwhite; @@ -1030,15 +1006,12 @@ munki_code munki_imp_calibrate( } a1logd(p->log,4,"munki sensor position = 0x%x\n",spos); -#ifdef NEVER /* We can set the *calc to the actual conditions, in which case */ /* the calibration will commence immediately. */ - if (!m->nosposcheck && spos == mk_spos_calib) { + if (m->nocalibask && !m->nosposcheck && spos == mk_spos_calib) { *calc = inst_calc_man_cal_smode; a1logd(p->log,4,"munki set calc to cal conditions\n",spos); - } -#endif /* Make sure that the instrument configuration matches the */ /* conditions */ @@ -1757,12 +1730,15 @@ int icoms2munki_err(int se) { } /* - - - - - - - - - - - - - - - - */ -/* Measure a display update delay. It is assumed that a */ +/* Measure a display update delay. It is assumed that */ +/* white_stamp(init) has been called, and then a */ /* white to black change has been made to the displayed color, */ /* and this will measure the time it took for the update to */ -/* be noticed by the instrument, up to 0.6 seconds. */ +/* be noticed by the instrument, up to 2.0 seconds. */ +/* (It is assumed that white_change() will be called at the time the patch */ +/* changes color.) */ /* inst_misread will be returned on failure to find a transition to black. */ -#define NDMXTIME 0.7 /* Maximum time to take */ +#define NDMXTIME 2.0 /* Maximum time to take */ #define NDSAMPS 500 /* Debug samples */ typedef struct { @@ -1773,7 +1749,8 @@ typedef struct { munki_code munki_imp_meas_delay( munki *p, -int *msecdelay) { /* Return the number of msec */ +int *pdispmsec, /* Return display update delay in msec */ +int *pinstmsec) { /* Return instrument reaction time in msec */ munki_code ev = MUNKI_OK; munkiimp *m = (munkiimp *)p->m; munki_state *s = &m->ms[m->mmode]; @@ -1783,10 +1760,20 @@ int *msecdelay) { /* Return the number of msec */ double rgbw[3] = { 610.0, 520.0, 460.0 }; double ucalf = 1.0; /* usec_time calibration factor */ double inttime; + double rstart; i1rgbdsamp *samp; double stot, etot, del, thr; - double etime; + double stime, etime; int isdeb; + int dispmsec, instmsec; + + if (pinstmsec != NULL) + *pinstmsec = 0; + + if ((rstart = usec_time()) < 0.0) { + a1loge(p->log, inst_internal_error, "munki_imp_meas_delay: No high resolution timers\n"); + return inst_internal_error; + } /* Read the samples */ inttime = m->min_int_time; @@ -1797,16 +1784,21 @@ int *msecdelay) { /* Return the number of msec */ return MUNKI_INT_MALLOC; } -//printf("~1 %d samples at %f int\n",nummeas,inttime); if ((ev = munki_read_patches_all(p, multimeas, nummeas, &inttime, 0)) != inst_ok) { free_dmatrix(multimeas, 0, nummeas-1, 0, m->nwav-1); free(samp); return ev; } + if (m->whitestamp < 0.0) { + a1logd(p->log, 1, "munki_meas_delay: White transition wasn't timestamped\n"); + return inst_internal_error; + } + /* Convert the samples to RGB */ + /* Add 10 msec fudge factor */ for (i = 0; i < nummeas; i++) { - samp[i].sec = i * inttime; + samp[i].sec = i * inttime + (m->trigstamp - m->whitestamp)/1000000.0 + 0.01; samp[i].rgb[0] = samp[i].rgb[1] = samp[i].rgb[2] = 0.0; for (j = 0; j < m->nwav; j++) { double wl = XSPECT_WL(m->wl_short, m->wl_long, m->nwav, j); @@ -1826,35 +1818,13 @@ int *msecdelay) { /* Return the number of msec */ a1logd(p->log, 3, "munki_measure_refresh: Read %d samples for refresh calibration\n",nummeas); -#ifdef PLOT_UPDELAY - /* Plot the raw sensor values */ - { - double xx[NDSAMPS]; - double y1[NDSAMPS]; - double y2[NDSAMPS]; - double y3[NDSAMPS]; - double y4[NDSAMPS]; - - for (i = 0; i < nummeas && i < NDSAMPS; i++) { - xx[i] = samp[i].sec; - y1[i] = samp[i].rgb[0]; - y2[i] = samp[i].rgb[1]; - y3[i] = samp[i].rgb[2]; - y4[i] = samp[i].tot; -//printf("%d: %f -> %f\n",i,samp[i].sec, samp[i].tot); - } - printf("Display update delay measure sensor values and time (sec)\n"); - do_plot6(xx, y1, y2, y3, y4, NULL, NULL, nummeas); - } -#endif - /* Over the first 100msec, locate the maximum value */ - etime = samp[nummeas-1].sec; + stime = samp[0].sec; stot = -1e9; for (i = 0; i < nummeas; i++) { if (samp[i].tot > stot) stot = samp[i].tot; - if (samp[i].sec > 0.1) + if ((samp[i].sec - stime) > 0.1) break; } @@ -1868,34 +1838,73 @@ int *msecdelay) { /* Return the number of msec */ break; } - del = stot - etot; - thr = etot + 0.30 * del; /* 30% of transition threshold */ + del = etot - stot; + thr = stot + 0.30 * del; /* 30% of transition threshold */ #ifdef PLOT_UPDELAY a1logd(p->log, 0, "munki_meas_delay: start tot %f end tot %f del %f, thr %f\n", stot, etot, del, thr); #endif +#ifdef PLOT_UPDELAY + /* Plot the raw sensor values */ + { + double xx[NDSAMPS]; + double y1[NDSAMPS]; + double y2[NDSAMPS]; + double y3[NDSAMPS]; + double y4[NDSAMPS]; + + for (i = 0; i < nummeas && i < NDSAMPS; i++) { + xx[i] = samp[i].sec; + y1[i] = samp[i].rgb[0]; + y2[i] = samp[i].rgb[1]; + y3[i] = samp[i].rgb[2]; + y4[i] = samp[i].tot; +//printf("%d: %f -> %f\n",i,samp[i].sec, samp[i].tot); + } + printf("Display update delay measure sensor values and time (sec)\n"); + do_plot6(xx, y1, y2, y3, y4, NULL, NULL, nummeas); + } +#endif + /* Check that there has been a transition */ if (del < 5.0) { free(samp); - a1logd(p->log, 1, "munki_meas_delay: can't detect change from white to black\n"); + a1logd(p->log, 1, "munki_meas_delay: can't detect change from black to white\n"); return MUNKI_RD_NOTRANS_FOUND; } - /* Locate the time at which the values are above the end values */ - for (i = nummeas-1; i >= 0; i--) { + /* Working from the start, locate the time at which the level was above the threshold */ + for (i = 0; i < (nummeas-1); i++) { if (samp[i].tot > thr) break; } - if (i < 0) /* Assume the update was so fast that we missed it */ - i = 0; a1logd(p->log, 2, "munki_meas_delay: stoped at sample %d time %f\n",i,samp[i].sec); - *msecdelay = (int)(samp[i].sec * 1000.0 + 0.5); + /* Compute overall delay and subtract patch change delay */ + dispmsec = (int)(samp[i].sec * 1000.0 + 0.5); + instmsec = (int)((m->trigstamp - rstart)/1000.0 + 0.5); #ifdef PLOT_UPDELAY - a1logd(p->log, 0, "munki_meas_delay: returning %d msec\n",*msecdelay); + a1logd(p->log, 0, "munki_meas_delay: disp %d, inst %d msec\n",dispmsec,instmsec); +#else + a1logd(p->log, 2, "munki_meas_delay: disp %d, inst %d msec\n",dispmsec,instmsec); +#endif + + if (dispmsec < 0) /* This can happen if the patch generator delays it's return */ + dispmsec = 0; + + if (pdispmsec != NULL) + *pdispmsec = dispmsec; + + if (pinstmsec != NULL) + *pinstmsec = instmsec; + +#ifdef PLOT_UPDELAY + a1logd(p->log, 0, "munki_meas_delay: returning %d & %d msec\n",dispmsec,instmsec); +#else + a1logd(p->log, 2, "munki_meas_delay: returning %d & %d msec\n",dispmsec,instmsec); #endif free(samp); @@ -1904,6 +1913,21 @@ int *msecdelay) { /* Return the number of msec */ #undef NDSAMPS #undef NDMXTIME +/* Timestamp the white patch change during meas_delay() */ +inst_code munki_imp_white_change(munki *p, int init) { + munkiimp *m = (munkiimp *)p->m; + + if (init) + m->whitestamp = -1.0; + else { + if ((m->whitestamp = usec_time()) < 0.0) { + a1loge(p->log, inst_internal_error, "munki_imp_wite_change: No high resolution timers\n"); + return inst_internal_error; + } + } + + return inst_ok; +} /* - - - - - - - - - - - - - - - - */ /* Measure a patch or strip or flash in the current mode. */ @@ -2415,6 +2439,9 @@ munki_code munki_imp_meas_refrate( a1logd(p->log,2,"munki_imp_meas_refrate called\n"); + if (ref_rate != NULL) + *ref_rate = 0.0; + if (!s->emiss) { a1logd(p->log,2,"munki_imp_meas_refrate not in emissive mode\n"); return MUNKI_UNSUPPORTED; @@ -2993,9 +3020,6 @@ munki_code munki_imp_meas_refrate( a1logd(p->log, 3, "Not enough tries suceeded to determine refresh rate\n"); } - if (ref_rate != NULL) - *ref_rate = 0.0; - return MUNKI_RD_NOREFR_FOUND; } #undef NFSAMPS @@ -3983,10 +4007,12 @@ munki_code munki_ledtemp_whitemeasure( /* floating point sensor readings. Check for saturation */ if ((ev = munki_sens_to_raw(p, multimes, ledtemp, buf, ninvmeas, nummeas, m->satlimit, &darkthresh)) != MUNKI_OK) { + free(buf); free_dvector(ledtemp, 0, nummeas-1); free_dmatrix(multimes, 0, nummeas-1, -1, m->nraw-1); return ev; } + free(buf); /* Make the reference temperature nominal */ *reftemp = 0.5 * (ledtemp[0] + ledtemp[nummeas-1]); @@ -4002,7 +4028,6 @@ munki_code munki_ledtemp_whitemeasure( munki_sub_raw_to_absraw(p, nummeas, inttime, gainmode, multimes, s->dark_data, &darkthresh, 1, NULL); - free(buf); /* For each raw wavelength, compute a linear regression */ { @@ -4651,6 +4676,8 @@ munki_code munki_trialmeasure( if ((rv = munki_sens_to_raw(p, multimes, NULL, buf, 0, nmeasuered, m->satlimit, &darkthresh)) != MUNKI_OK) { if (rv != MUNKI_RD_SENSORSATURATED) { + free_dvector(absraw, -1, m->nraw-1); + free_dmatrix(multimes, 0, nummeas-1, -1, m->nraw-1); free(buf); return rv; } @@ -5360,7 +5387,7 @@ munki_code munki_extract_patches_multimeas( bdev = dev[k]; } -#ifndef NEVER +#ifndef NEVER /* Use this */ /* Weight the deviations with a triangular weighting */ /* to skew slightly towards the center */ for (k = 0; k < FW; k++) { @@ -5524,6 +5551,9 @@ munki_code munki_extract_patches_multimeas( apat = 2 * nummeas; if ((pat = (munki_patch *)malloc(sizeof(munki_patch) * apat)) == NULL) { a1logd(p->log,1,"munki: malloc of patch structures failed!\n"); + free_ivector(sizepop, 0, nummeas-1); + free_dvector(slope, 0, nummeas-1); + free_dvector(maxval, -1, m->nraw-1); return MUNKI_INT_MALLOC; } @@ -5536,6 +5566,9 @@ munki_code munki_extract_patches_multimeas( if (npat >= apat) { apat *= 2; if ((pat = (munki_patch *)realloc(pat, sizeof(munki_patch) * apat)) == NULL) { + free_ivector(sizepop, 0, nummeas-1); + free_dvector(slope, 0, nummeas-1); + free_dvector(maxval, -1, m->nraw-1); a1logd(p->log,1,"munki: reallloc of patch structures failed!\n"); return MUNKI_INT_MALLOC; } @@ -5672,7 +5705,7 @@ munki_code munki_extract_patches_multimeas( for (i = 1; i < (npat-1); i++) { if (pat[i].use == 0) continue; - printf("Patch %d, start %d, length %d:\n",i, pat[i].ss, pat[i].no, pat[i].use); + printf("Patch %d, start %d, length %d, use %d\n",i, pat[i].ss, pat[i].no, pat[i].use); } #endif @@ -5696,7 +5729,7 @@ munki_code munki_extract_patches_multimeas( for (i = 1; i < (npat-1); i++) { if (pat[i].use == 0) continue; - printf("Patch %d, start %d, length %d:\n",i, pat[i].ss, pat[i].no, pat[i].use); + printf("Patch %d, start %d, length %d, use %d\n",i, pat[i].ss, pat[i].no, pat[i].use); } /* Create fake "slope" value that marks patches */ @@ -5997,7 +6030,7 @@ munki_code munki_extract_patches_flash( nsampl++; } - /* Average all the values over the threshold, */ + /* Integrate all the values over the threshold, */ /* and also one either side of flash */ for (j = 0; j < m->nraw-1; j++) pavg[j] = 0.0; @@ -8169,6 +8202,15 @@ a1logd(p->log,3,"set_noinitcalib v = %d, ->lo_secs %d, losecs %d secs\n",v, m->l m->noinitcalib = v; } +/* Set the nocalibask mode */ +/* Don't ask user for confirmation of calibration */ +/* if the instrument is in the correct configuration for it. */ +void munki_set_nocalibask(munki *p, int v) { + munkiimp *m = (munkiimp *)p->m; + + m->nocalibask = v; +} + /* Set the trigger config */ void munki_set_trig(munki *p, inst_opt_type trig) { munkiimp *m = (munkiimp *)p->m; @@ -8188,7 +8230,9 @@ static int munki_switch_thread(void *pp) { munkiimp *m = (munkiimp *)p->m; munki_code rv = MUNKI_OK; a1logd(p->log,3,"Switch thread started\n"); - for (nfailed = 0;nfailed < 5;) { +// for (nfailed = 0;nfailed < 5;) + /* Try indefinitely, in case instrument is put to sleep */ + for (;;) { mk_eve ecode; rv = munki_waitfor_switch_th(p, &ecode, NULL, SW_THREAD_TIMEOUT); @@ -8291,7 +8335,7 @@ munki_readEEProm( } /* Now read the bytes */ - se = p->icom->usb_read(p->icom, NULL, 0x81, buf, size, &rwbytes, 5.0); + se = p->icom->usb_read(p->icom, NULL, 0x81, buf, size, &rwbytes, 6.0); if ((rv = icoms2munki_err(se)) != MUNKI_OK) { a1logd(p->log,1,"munki_readEEProm: read failed (2) with ICOM err 0x%x\n",se); return rv; @@ -8596,6 +8640,7 @@ munki_triggermeasure( se = p->icom->usb_control(p->icom, IUSB_ENDPOINT_OUT | IUSB_REQ_TYPE_VENDOR | IUSB_REQ_RECIP_DEVICE, 0x80, 0, 0, pbuf, 12, 2.0); + m->trigstamp = usec_time(); m->tr_t2 = msec_time(); /* Diagnostic */ @@ -8611,7 +8656,7 @@ munki_triggermeasure( /* Read a measurements results. */ /* A buffer full of bytes is returned. */ -munki_code +static munki_code munki_readmeasurement( munki *p, int inummeas, /* Initial number of measurements to expect */ diff --git a/spectro/munki_imp.h b/spectro/munki_imp.h index 6af366e..ea9451f 100644 --- a/spectro/munki_imp.h +++ b/spectro/munki_imp.h @@ -164,6 +164,8 @@ struct _munkiimp { volatile int th_termed; /* Thread has terminated */ inst_opt_type trig; /* Reading trigger mode */ int noinitcalib; /* Disable initial calibration if not essential */ + int nocalibask; /* Disable asking user to proceed with calibration */ + /* even when the instrument is in correct configuration */ int nosposcheck; /* Disable checking the sensor position */ int highres; /* High resolution mode */ int hr_inited; /* High resolution has been initialized */ @@ -291,6 +293,9 @@ struct _munkiimp { volatile int spos_change; /* counter that increments on an spos event change */ unsigned int spos_msec; /* Time when spos last changes */ + volatile double whitestamp; /* meas_delay() white timestamp */ + volatile double trigstamp; /* meas_delay() trigger timestamp */ + }; typedef struct _munkiimp munkiimp; /* Add an implementation structure */ @@ -432,9 +437,12 @@ munki_code munki_imp_meas_refrate( /* Measure the display update delay */ munki_code munki_imp_meas_delay( - munki *p, - int *msecdelay -); +munki *p, +int *pdispmsec, +int *pinstmsec); + +/* Timestamp the white patch change during meas_delay() */ +inst_code munki_imp_white_change(munki *p, int init); /* return nz if high res is supported */ int munki_imp_highres(munki *p); @@ -622,7 +630,7 @@ munki_code munki_trialmeasure( /* level "calibrate" and "take reading" functions. */ /* The setup for the operation is in the current mode state. */ /* The called then needs to call munki_readmeasurement() */ -munki_code +static munki_code munki_trigger_one_measure( munki *p, int nummeas, /* Number of measurements to make */ @@ -813,6 +821,9 @@ munki_code munki_create_hr(munki *p, int ref); /* Set the noinitcalib mode */ void munki_set_noinitcalib(munki *p, int v, int losecs); +/* Set the nocalibask mode */ +void munki_set_nocalibask(munki *p, int v); + /* Set the trigger config */ void munki_set_trig(munki *p, inst_opt_type trig); @@ -933,7 +944,7 @@ munki_triggermeasure( ); /* Read a measurements results */ -munki_code +static munki_code munki_readmeasurement( munki *p, int inummeas, /* Initial number of measurements to expect */ diff --git a/spectro/oemarch.c b/spectro/oemarch.c index e27d25d..e3e262c 100644 --- a/spectro/oemarch.c +++ b/spectro/oemarch.c @@ -16,6 +16,13 @@ * */ +/* + Notes :- + Although we have made an allowance for a Spyder 1 PLD pattern, + we know nothing about it, or even if it exists... + + */ + #include #include #include @@ -45,7 +52,9 @@ #include "xspect.h" #include "conv.h" #include "aglob.h" +#include "disptechs.h" #include "ccss.h" +#include "disptechs.h" #include "LzmaDec.h" #include "oemarch.h" @@ -56,25 +65,31 @@ oem_target oemtargs = { #ifdef NT { /* Installed files */ - { "/ColorVision/Spyder2express/CVSpyder.dll", targ_spyd_pld, file_dllcab }, - { "/ColorVision/Spyder2pro/CVSpyder.dll", targ_spyd_pld, file_dllcab }, - { "/PANTONE COLORVISION/ColorPlus/CVSpyder.dll", targ_spyd_pld, file_dllcab }, + { "/ColorVision/Spyder2express/CVSpyder.dll", targ_spyd2_pld, file_dllcab }, + { "/ColorVision/Spyder2pro/CVSpyder.dll", targ_spyd2_pld, file_dllcab }, + { "/PANTONE COLORVISION/ColorPlus/CVSpyder.dll", targ_spyd2_pld, file_dllcab }, { "/Datacolor/Spyder4Express/dccmtr.dll", targ_spyd_cal, file_dllcab }, { "/Datacolor/Spyder4Pro/dccmtr.dll", targ_spyd_cal, file_dllcab }, { "/Datacolor/Spyder4Elite/dccmtr.dll", targ_spyd_cal, file_dllcab }, { "/Datacolor/Spyder4TV HD/dccmtr.dll", targ_spyd_cal, file_dllcab }, + { "/Datacolor/Spyder5Express/dccmtr.dll", targ_spyd_cal, file_dllcab }, + { "/Datacolor/Spyder5Pro/dccmtr.dll", targ_spyd_cal, file_dllcab }, + { "/Datacolor/Spyder5Elite/dccmtr.dll", targ_spyd_cal, file_dllcab }, + { "/Datacolor/Spyder5TV HD/dccmtr.dll", targ_spyd_cal, file_dllcab }, { "/X-Rite/Devices/i1d3/Calibrations/*.edr", targ_i1d3_edr, file_data }, { NULL } }, { /* Volume names */ - { "ColorVision", targ_spyd_pld | targ_spyd_cal }, - { "Datacolor", targ_spyd_pld | targ_spyd_cal }, + { "ColorVision", targ_spyd2_pld | targ_spyd_cal }, + { "Datacolor", targ_spyd2_pld | targ_spyd_cal }, { "i1Profiler", targ_i1d3_edr }, { "ColorMunki Displ", targ_i1d3_edr }, { NULL } }, { /* Archive names */ - { "/setup/setup.exe", targ_spyd_pld }, + { "/PhotoCAL/PhotoCAL Setup.exe", targ_spyd2_pld }, + { "/OptiCAL/OptiCAL Setup.exe", targ_spyd2_pld }, + { "/setup/setup.exe", targ_spyd2_pld }, { "/Data/setup.exe", targ_spyd_cal }, { "/Installer/Setup.exe", targ_i1d3_edr }, { "/Installer/ColorMunkiDisplaySetup.exe", targ_i1d3_edr }, @@ -83,8 +98,8 @@ oem_target oemtargs = { #endif /* NT */ #ifdef __APPLE__ { /* Installed files */ - { "/Applications/Spyder2express 2.2/Spyder2express.app/Contents/MacOSClassic/Spyder.lib", targ_spyd_pld }, - { "/Applications/Spyder2pro 2.2/Spyder2pro.app/Contents/MacOSClassic/Spyder.lib", targ_spyd_pld }, + { "/Applications/Spyder2express 2.2/Spyder2express.app/Contents/MacOSClassic/Spyder.lib", targ_spyd2_pld }, + { "/Applications/Spyder2pro 2.2/Spyder2pro.app/Contents/MacOSClassic/Spyder.lib", targ_spyd2_pld }, { "/Library/Application Support/X-Rite/Devices/i1d3xrdevice/Contents/Resources/Calibrations/*.edr", targ_i1d3_edr }, { "/Library/Application Support/X-Rite/Frameworks/XRiteDevice.framework/PlugIns/i1d3.xrdevice/Contents/Resources/Calibrations/*.edr",targ_i1d3_edr }, @@ -92,14 +107,16 @@ oem_target oemtargs = { { NULL } }, { /* Volume names */ - { "/Volumes/ColorVision", targ_spyd_pld | targ_spyd_cal }, - { "/Volumes/Datacolor", targ_spyd_pld | targ_spyd_cal }, + { "/Volumes/ColorVision", targ_spyd2_pld | targ_spyd_cal }, + { "/Volumes/Datacolor", targ_spyd2_pld | targ_spyd_cal }, { "/Volumes/i1Profiler", targ_i1d3_edr }, { "/Volumes/ColorMunki Display", targ_i1d3_edr }, { NULL } }, { /* Archive names */ - { "/setup/setup.exe", targ_spyd_pld }, + { "/PhotoCAL/PhotoCAL Setup.exe", targ_spyd2_pld }, + { "/OptiCAL/OptiCAL Setup.exe", targ_spyd2_pld }, + { "/setup/setup.exe", targ_spyd2_pld }, { "/Data/setup.exe", targ_spyd_cal }, { "/Installer/Setup.exe", targ_i1d3_edr }, { "/Installer/ColorMunkiDisplaySetup.exe", targ_i1d3_edr }, @@ -111,20 +128,22 @@ oem_target oemtargs = { { NULL } }, { /* Volume names the CDROM may have */ - { "/media/ColorVision", targ_spyd_pld | targ_spyd_cal }, - { "/media/Datacolor", targ_spyd_pld | targ_spyd_cal }, + { "/media/ColorVision", targ_spyd2_pld | targ_spyd_cal }, + { "/media/Datacolor", targ_spyd2_pld | targ_spyd_cal }, { "/media/i1Profiler", targ_i1d3_edr }, { "/media/ColorMunki Displ", targ_i1d3_edr }, - { "/mnt/cdrom", targ_spyd_pld | targ_spyd_cal | targ_i1d3_edr }, - { "/mnt/cdrecorder", targ_spyd_pld | targ_spyd_cal | targ_i1d3_edr }, - { "/media/cdrom", targ_spyd_pld | targ_spyd_cal | targ_i1d3_edr }, - { "/media/cdrecorder", targ_spyd_pld | targ_spyd_cal | targ_i1d3_edr }, - { "/cdrom", targ_spyd_pld | targ_spyd_cal | targ_i1d3_edr }, - { "/cdrecorder", targ_spyd_pld | targ_spyd_cal | targ_i1d3_edr }, + { "/mnt/cdrom", targ_spyd2_pld | targ_spyd_cal | targ_i1d3_edr }, + { "/mnt/cdrecorder", targ_spyd2_pld | targ_spyd_cal | targ_i1d3_edr }, + { "/media/cdrom", targ_spyd2_pld | targ_spyd_cal | targ_i1d3_edr }, + { "/media/cdrecorder", targ_spyd2_pld | targ_spyd_cal | targ_i1d3_edr }, + { "/cdrom", targ_spyd2_pld | targ_spyd_cal | targ_i1d3_edr }, + { "/cdrecorder", targ_spyd2_pld | targ_spyd_cal | targ_i1d3_edr }, { NULL } }, { /* Archive names */ - { "/setup/setup.exe", targ_spyd_pld }, + { "/PhotoCAL/PhotoCAL Setup.exe", targ_spyd2_pld }, + { "/OptiCAL/OptiCAL Setup.exe", targ_spyd2_pld }, + { "/setup/setup.exe", targ_spyd2_pld }, { "/Data/setup.exe", targ_spyd_cal }, { "/Installer/Setup.exe", targ_i1d3_edr }, { "/Installer/ColorMunkiDisplaySetup.exe", targ_i1d3_edr }, @@ -163,6 +182,7 @@ int is_dll(xfile *xf); static xfile *vise_extract(xfile **pxf, xfile *xi, char *tfilename, int verb); static xfile *spyd2pld_extract(xfile **pxf, xfile *dll, int verb); static xfile *spyd4cal_extract(xfile **pxf, xfile *dll, int verb); +int is_s1pld(xfile *xf); int is_s2pld(xfile *xf); int is_s4cal(xfile *xf); @@ -270,15 +290,15 @@ xfile *oemarch_get_ifiles(xfile *files, int verb) { continue; } - /* If this could be spyder 2 PLD pattern: */ - if (arch->ttype & targ_spyd_pld) { + /* If this could be spyder 1/2 PLD pattern: */ + if (arch->ttype & (targ_spyd1_pld | targ_spyd2_pld)) { xfile *dll = NULL; /* dccmtr.dll */ if (vise_extract(&nfiles, arch, "CVSpyder.dll", verb) != NULL) continue; } - /* If this could be spyder 4 calibration file: */ + /* If this could be spyder 4/5 calibration file: */ if (arch->ttype & targ_spyd_cal) { xfile *dll = NULL; /* dccmtr.dll */ @@ -356,14 +376,14 @@ xfile *oemarch_get_ifiles(xfile *files, int verb) { continue; } - /* If this could be spyder 2 PLD pattern: */ - if (dllcab->ttype & targ_spyd_pld) { + /* If this could be spyder 1/2 PLD pattern: */ + if (dllcab->ttype & (targ_spyd1_pld | targ_spyd2_pld)) { if (spyd2pld_extract(&nfiles, dllcab, verb) != NULL) continue; } - /* If this could be spyder 4 calibration file: */ + /* If this could be spyder 4/5 calibration file: */ if (dllcab->ttype & targ_spyd_cal) { if (spyd4cal_extract(&nfiles, dllcab, verb) != NULL) @@ -415,6 +435,12 @@ xfile *oemarch_get_ifiles(xfile *files, int verb) { del_xf(ofiles); nfiles = NULL; + /* Mark any files that wern't recognized as unknown */ + for (i = 0; files[i].name != NULL; i++) { + if (files[i].ttype & targ_unknown) + files[i].ttype = targ_unknown; + } + #ifdef DEBUG list_files("Returning", files); printf("\n"); @@ -429,13 +455,13 @@ xfile *oemarch_get_ifiles(xfile *files, int verb) { void classify_file(xfile *xf, int verb) { if (is_dll(xf)) { xf->ftype = file_dllcab; - xf->ttype &= (targ_spyd_pld | targ_spyd_cal); + xf->ttype &= (targ_spyd1_pld | targ_spyd2_pld | targ_spyd_cal); if (verb) printf("'%s' seems to be a .dll file\n",xf->name); return; } if (is_vise(xf)) { xf->ftype = file_arch; - xf->ttype &= (targ_spyd_pld | targ_spyd_cal); + xf->ttype &= (targ_spyd1_pld | targ_spyd2_pld | targ_spyd_cal); if (verb) printf("'%s' seems to be a VISE archive\n",xf->name); return; } @@ -463,9 +489,15 @@ void classify_file(xfile *xf, int verb) { if (verb) printf("'%s' seems to be a .ccmx\n",xf->name); return; } + if (is_s1pld(xf)) { + xf->ftype = file_data; + xf->ttype &= targ_spyd1_pld; + if (verb) printf("'%s' seems to be a Spyder 1 PLD file\n",xf->name); + return; + } if (is_s2pld(xf)) { xf->ftype = file_data; - xf->ttype &= targ_spyd_pld; + xf->ttype &= targ_spyd2_pld; if (verb) printf("'%s' seems to be a Spyder 2 PLD file\n",xf->name); return; } @@ -476,8 +508,9 @@ void classify_file(xfile *xf, int verb) { return; } /* Hmm. */ - if (verb) printf("'%s' is unknown\n",xf->name); + if (verb) printf("'%s' is unknown - assume it's an archive\n",xf->name); xf->ftype = file_arch | file_dllcab | file_data; + xf->ttype |= targ_unknown; } /* ============================================================================= */ @@ -638,6 +671,7 @@ static xfile *locate_read_archive(xfile *vol, int verb) { } strcpy(ap, oemtargs.archnames[j].path); + if (verb > 1) printf("Looking for archive '%s'\n",buf); if (sys_access(buf, 0) == 0) { if (verb) printf("found\n"); new_add_xf(&xf, buf, NULL, 0, file_arch, ttype); @@ -726,7 +760,7 @@ xfile *add_xf(xfile **l) { ; if ((*l = (xfile *)realloc(*l, (n+2) * sizeof(xfile))) == NULL) - error("new_xf: Failed to realloc xfile structure"); + error("new_xf: Failed to realloc xfile structure of %d x %d bytes",(n+2), sizeof(xfile)); (*l)[n+1].name = NULL; /* End marker */ (*l)[n+1].buf = NULL; (*l)[n+1].len = 0; @@ -1098,7 +1132,7 @@ static xfile *vise_extract(xfile **pxf, xfile *arch, char *tfilename, int verb) printf("Input file '%s' is a VISE archive file base 0x%x\n",arch->name,vi->vbase); if (vi->locate_file(vi, tfilename)) { - if (verb) printf("Failed to locate file '%s' in VISE archive",tfilename); + if (verb) printf("Failed to locate file '%s' in VISE archive\n",tfilename); return NULL; } @@ -1141,7 +1175,22 @@ static xfile *vise_extract(xfile **pxf, xfile *arch, char *tfilename, int verb) } /* ============================================================================= */ -/* Spyder 2 PLD pattern extraction */ +/* Spyder 1/2 PLD pattern extraction */ + +int is_s1pld(xfile *xf) { + + if (xf->len != 6817) + return 0; + + /* Deobscured signature */ + if (xf->buf[0] == 0xff + && xf->buf[1] == 0x04 + && xf->buf[2] == 0xb0 + && xf->buf[3] == 0x0a + && xf->buf[7] == 0x57) + return 1; + return 0; +} int is_s2pld(xfile *xf) { @@ -1151,7 +1200,8 @@ int is_s2pld(xfile *xf) { if (xf->buf[0] == 0xff && xf->buf[1] == 0x04 && xf->buf[2] == 0xb0 - && xf->buf[3] == 0x0a) + && xf->buf[3] == 0x0a + && xf->buf[7] == 0xd7) return 1; return 0; } @@ -1164,7 +1214,9 @@ static xfile *spyd2pld_extract(xfile **pxf, xfile *dll, int verb) { unsigned char *firmware; unsigned int firmwaresize; /* First few bytes of the standard Xilinx XCS05XL PLD pattern */ - unsigned char magic[4] = { 0xff, 0x04, 0xb0, 0x0a }; + unsigned char magic1[4] = { 0xff, 0x94, 0xCB, 0x02 }; + unsigned char magic2[4] = { 0xff, 0x04, 0xb0, 0x0a }; + int isOld = 0; /* Old pattern - SpyderPro Optical etc. */ xfile *xf = NULL; buf = dll->buf; @@ -1173,22 +1225,38 @@ static xfile *spyd2pld_extract(xfile **pxf, xfile *dll, int verb) { firmwaresize = 6817; rfsize = (firmwaresize + 7) & ~7; - /* Search for start of PLD pattern */ - for(i = 0; (i + rfsize) < size ;i++) { - if (buf[i] == magic[0]) { + /* Search for start of Spyder 1 PLD pattern */ + for (i = 0; (i + rfsize) < size ;i++) { + if (buf[i] == magic1[0]) { for (j = 0; j < 4; j++) { - if (buf[i + j] != magic[j]) + if (buf[i + j] != magic1[j]) break; } if (j >= 4) break; /* found it */ } } - if ((i + rfsize) >= size) { - if (verb) printf("Failed to locate Spyder 2 firmware in '%s'\n",dll->name); - return NULL; - } + if ((i + rfsize) < size) { /* Found Spyder 1 PLD pattern */ + isOld = 1; + } else { + + /* Search for start of Spyder 2 PLD pattern */ + for (i = 0; (i + rfsize) < size ;i++) { + if (buf[i] == magic2[0]) { + for (j = 0; j < 4; j++) { + if (buf[i + j] != magic2[j]) + break; + } + if (j >= 4) + break; /* found it */ + } + } + if ((i + rfsize) >= size) { + if (verb) printf("Failed to locate Spyder 2 firmware in '%s'\n",dll->name); + return NULL; + } + } firmware = buf + i; xf = add_xf(pxf); @@ -1201,10 +1269,17 @@ static xfile *spyd2pld_extract(xfile **pxf, xfile *dll, int verb) { fprintf(stderr,"malloc failed for Spyder 2 PLD pattern (%d bytes)\n",firmwaresize); exit(-1); } - memcpy(xf->buf, firmware, firmwaresize); + if (isOld) { /* Old Spyder w PLD pattern is obscured */ + for (i = 0; i < firmwaresize; i++) { + int j = (3347 * i) % 0x1AA2; + xf->buf[i] = i ^ firmware[j]; + } + } else { + memcpy(xf->buf, firmware, firmwaresize); + } xf->len = firmwaresize; xf->ftype = file_data; - xf->ttype = targ_spyd_pld; + xf->ttype = targ_spyd2_pld; if (verb) printf("Returning '%s' length %ld from '%s'\n",xf->name, xf->len, dll->name); @@ -1286,7 +1361,8 @@ static xfile *spyd4cal_extract(xfile **pxf, xfile *dll, int verb) { return NULL; } - if (nocals != 6) { + if (nocals != 6 /* Spyder 4 */ + && nocals != 7) { /* Spyder 5 */ if (verb) printf("Spyder 4 calibration data has an unexpected number of entries (%d)\n",nocals); return NULL; } @@ -1298,7 +1374,7 @@ static xfile *spyd4cal_extract(xfile **pxf, xfile *dll, int verb) { exit(-1); } if ((xf->buf = malloc(rfsize)) == NULL) { - fprintf(stderr,"malloc failed for Spyder 4 calibration data (%d bytes)\n",rfsize); + fprintf(stderr,"malloc failed for Spyder 4/5 calibration data (%d bytes)\n",rfsize); exit(-1); } memcpy(xf->buf, caldata, rfsize); @@ -1363,29 +1439,6 @@ static xfile *edr_convert(xfile **pxf, xfile *xi, int verb) { /* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -*/ /* Lower level */ -// Print bytes as hex to fp -static void dump_bytes(FILE *fp, char *pfx, unsigned char *buf, int len) { - int i, j, ii; - for (i = j = 0; i < len; i++) { - if ((i % 16) == 0) - fprintf(fp,"%s%04x:",pfx,i); - fprintf(fp," %02x",buf[i]); - if ((i+1) >= len || ((i+1) % 16) == 0) { - for (ii = i; ((ii+1) % 16) != 0; ii++) - fprintf(fp," "); - fprintf(fp," "); - for (; j <= i; j++) { - if (isprint(buf[j])) - fprintf(fp,"%c",buf[j]); - else - fprintf(fp,"."); - } - fprintf(fp,"\n"); - } - } - fflush(fp); -} - /* Take a 64 sized return buffer, and convert it to an ORD64, little endian */ static ORD64 buf2ord64(unsigned char *buf) { ORD64 val; @@ -1468,9 +1521,7 @@ static ccss *parse_EDR( char creatdate[30]; char dispdesc[256]; int ttmin, ttmax; /* Min & max technology strings (inclusive) */ - int *trefmodes; /* Corresponding refresh mode for tecnology */ - char **tsels; /* Corresponding UI selection chars */ - char **ttstrings; /* Corresponding technology strings */ + disptech *tdtypes; /* Corresponding ArgyllCMS display techology enumeration */ int ttype; /* Technology type idex */ int nsets, set; xspect *samples = NULL, sp; @@ -1479,55 +1530,46 @@ static ccss *parse_EDR( int nsamples; ccss *rv; - /* We hard code the Technology strings for now. In theory we could */ - /* read them from the TechnologyStrings.txt file that comes with the .edr's */ + /* We hard code the mapping between the .edr display technology and the */ + /* ArgyllCMS equivalent. We could in theory figure it out by reading the */ + /* TechnologyStrings.txt file that comes with the .edr's */ { ttmin = 0; ttmax = 22; - if ((ttstrings = (char **)malloc(sizeof(char *) * (ttmax - ttmin + 2))) == NULL) { - if (verb) printf("Malloc failed\n"); - return NULL; - } - if ((trefmodes = (int *)malloc(sizeof(int) * (ttmax - ttmin + 2))) == NULL) { - free(ttstrings); - if (verb) printf("Malloc failed\n"); - return NULL; - } - if ((tsels = (char **)malloc(sizeof(char *) * (ttmax - ttmin + 2))) == NULL) { - free(trefmodes); - free(ttstrings); + if ((tdtypes = (disptech *)malloc(sizeof(disptech) * (ttmax - ttmin + 2))) == NULL) { if (verb) printf("Malloc failed\n"); return NULL; } - trefmodes[0] = 0; tsels[0] = NULL; ttstrings[0] = "Color Matching Function"; - trefmodes[1] = 0; tsels[1] = NULL; ttstrings[1] = "Custom"; - trefmodes[2] = 1; tsels[2] = "c"; ttstrings[2] = "CRT"; - trefmodes[3] = 0; tsels[3] = "l"; ttstrings[3] = "LCD CCFL IPS"; - trefmodes[4] = 0; tsels[4] = NULL; ttstrings[4] = "LCD CCFL VPA"; - trefmodes[5] = 0; tsels[5] = NULL; ttstrings[5] = "LCD CCFL TFT"; - trefmodes[6] = 0; tsels[6] = "L"; ttstrings[6] = "LCD CCFL Wide Gamut IPS"; - trefmodes[7] = 0; tsels[7] = NULL; ttstrings[7] = "LCD CCFL Wide Gamut VPA"; - trefmodes[8] = 0; tsels[8] = NULL; ttstrings[8] = "LCD CCFL Wide Gamut TFT"; - trefmodes[9] = 0; tsels[9] = "e"; ttstrings[9] = "LCD White LED IPS"; - trefmodes[10] = 0; tsels[10] = NULL; ttstrings[10] = "LCD White LED VPA"; - trefmodes[11] = 0; tsels[11] = NULL; ttstrings[11] = "LCD White LED TFT"; - trefmodes[12] = 0; tsels[12] = "b"; ttstrings[12] = "LCD RGB LED IPS"; - trefmodes[13] = 0; tsels[13] = NULL; ttstrings[13] = "LCD RGB LED VPA"; - trefmodes[14] = 0; tsels[14] = NULL; ttstrings[14] = "LCD RGB LED TFT"; - trefmodes[15] = 0; tsels[15] = "o"; ttstrings[15] = "LED OLED"; - trefmodes[16] = 0; tsels[16] = "a"; ttstrings[16] = "LED AMOLED"; - trefmodes[17] = 1; tsels[17] = "m"; ttstrings[17] = "Plasma"; - trefmodes[18] = 0; tsels[18] = NULL; ttstrings[18] = "LCD RG Phosphor"; - trefmodes[19] = 1; tsels[19] = NULL; ttstrings[19] = "Projector RGB Filter Wheel"; - trefmodes[20] = 1; tsels[10] = NULL; ttstrings[20] = "Projector RGBW Filter Wheel"; - trefmodes[21] = 1; tsels[21] = NULL; ttstrings[21] = "Projector RGBCMY Filter Wheel"; - trefmodes[22] = 0; tsels[22] = "p"; ttstrings[22] = "Projector"; - trefmodes[23] = 0; tsels[23] = NULL; ttstrings[23] = "Unknown"; + tdtypes[0] = disptech_unknown; /* CMF */ + tdtypes[1] = disptech_unknown; /* Custom */ + tdtypes[2] = disptech_crt; + tdtypes[3] = disptech_lcd_ccfl_ips; + tdtypes[4] = disptech_lcd_ccfl_vpa; + tdtypes[5] = disptech_lcd_ccfl_tft; + tdtypes[6] = disptech_lcd_ccfl_wg_ips; + tdtypes[7] = disptech_lcd_ccfl_wg_vpa; + tdtypes[8] = disptech_lcd_ccfl_wg_tft; + tdtypes[9] = disptech_lcd_wled_ips; + tdtypes[10] = disptech_lcd_wled_vpa; + tdtypes[11] = disptech_lcd_wled_tft; + tdtypes[12] = disptech_lcd_rgbled_ips; + tdtypes[13] = disptech_lcd_rgbled_vpa; + tdtypes[14] = disptech_lcd_rgbled_tft; + tdtypes[15] = disptech_oled; + tdtypes[16] = disptech_amoled; + tdtypes[17] = disptech_plasma; + tdtypes[18] = disptech_lcd_rgledp; + tdtypes[19] = disptech_dlp_rgb; + tdtypes[10] = disptech_dlp_rgbw; + tdtypes[21] = disptech_dlp_rgbcmy; + tdtypes[22] = disptech_dlp; + tdtypes[23] = disptech_unknown; } if (len < 600) { if (verb) printf("Unable to read '%s' header\n",name); + if (tdtypes != NULL) free(tdtypes); return NULL; } nbuf = buf + 600; /* Next time we "read" the file */ @@ -1536,6 +1578,7 @@ static ccss *parse_EDR( /* See if it has the right file ID */ if (strncmp("EDR DATA1", (char *)buf, 16) != 0) { if (verb) printf("File '%s' isn't an EDR\n",name); + if (tdtypes != NULL) free(tdtypes); return NULL; } @@ -1556,6 +1599,7 @@ static ccss *parse_EDR( if (nsets < 3 || nsets > 100) { if (verb) printf("File '%s' number of data sets %d out of range\n",name,nsets); + if (tdtypes != NULL) free(tdtypes); return NULL; } @@ -1569,6 +1613,7 @@ static ccss *parse_EDR( hasspec = buf2short(buf + 0x022E); if (hasspec != 1) { if (verb) printf("Has Data flag != 1 in EDR file '%s'\n",name); + if (tdtypes != NULL) free(tdtypes); return NULL; } @@ -1590,6 +1635,7 @@ static ccss *parse_EDR( /* Allocate space for the sets */ if ((samples = (xspect *)malloc(sizeof(xspect) * nsets)) == NULL) { if (verb) printf("Malloc of spectral samples failed\n"); + if (tdtypes != NULL) free(tdtypes); return NULL; } } @@ -1603,6 +1649,7 @@ static ccss *parse_EDR( if (len < 128) { if (verb) printf("Unable to read file '%s' set %d data header\n",name,set); if (samples != NULL) free(samples); + if (tdtypes != NULL) free(tdtypes); return NULL; } nbuf = buf + 128; /* Next time we "read" the file */ @@ -1612,6 +1659,7 @@ static ccss *parse_EDR( if (strncmp("DISPLAY DATA", (char *)buf, 16) != 0) { if (verb) printf("File '%s' set %d data header has unknown identifier\n",name,set); if (samples != NULL) free(samples); + if (tdtypes != NULL) free(tdtypes); return NULL; } @@ -1626,6 +1674,7 @@ static ccss *parse_EDR( if (len < 28) { if (verb) printf("Unable to read file '%s' set %d spectral data header\n",name,set); if (samples != NULL) free(samples); + if (tdtypes != NULL) free(tdtypes); return NULL; } nbuf = buf + 28; /* Next time we "read" the file */ @@ -1635,6 +1684,7 @@ static ccss *parse_EDR( if (strncmp("SPECTRAL DATA", (char *)buf, 16) != 0) { if (verb) printf("File '%s' set %d data header has unknown identifier\n",name,set); if (samples != NULL) free(samples); + if (tdtypes != NULL) free(tdtypes); return NULL; } @@ -1644,6 +1694,7 @@ static ccss *parse_EDR( if (nsamples != sp.spec_n) { if (verb) printf("File '%s' set %d number of samles %d doesn't match wavelengths %d\n",name,set,nsamples,sp.spec_n); if (samples != NULL) free(samples); + if (tdtypes != NULL) free(tdtypes); return NULL; } @@ -1653,6 +1704,7 @@ static ccss *parse_EDR( if (len < 8 * sp.spec_n) { if (verb) printf("Unable to read file '%s' set %d spectral data\n",name,set); if (samples != NULL) free(samples); + if (tdtypes != NULL) free(tdtypes); return NULL; } nbuf = buf + 8 * sp.spec_n; /* Next time we "read" the file */ @@ -1700,6 +1752,7 @@ static ccss *parse_EDR( if (strncmp("CORRECTION DATA", (char *)buf, 16) != 0) { if (verb) printf("File '%s' correction data header has unknown identifier\n",name); if (samples != NULL) free(samples); + if (tdtypes != NULL) free(tdtypes); return NULL; } @@ -1719,6 +1772,7 @@ static ccss *parse_EDR( } else { if (verb) printf("File '%s' correction data has unknown range %d\n\n",name,nsamples); if (samples != NULL) free(samples); + if (tdtypes != NULL) free(tdtypes); return NULL; } @@ -1728,6 +1782,7 @@ static ccss *parse_EDR( if (len < 8 * sp.spec_n) { if (verb) printf("Unable to read file '%s' correction spectral data\n",name); if (samples != NULL) free(samples); + if (tdtypes != NULL) free(tdtypes); return NULL; } nbuf = buf + 8 * sp.spec_n; /* Next time we "read" the file */ @@ -1763,6 +1818,7 @@ static ccss *parse_EDR( if ((rv = new_ccss()) == NULL) { if (verb) printf("Unable to read file '%s' correction spectral data\n",name); if (samples != NULL) free(samples); + if (tdtypes != NULL) free(tdtypes); return NULL; } @@ -1770,12 +1826,31 @@ static ccss *parse_EDR( ttype = ttmax + 1; /* Set to Unknown */ } - /* Set it's values */ - rv->set_ccss(rv, "X-Rite", creatdate, NULL, dispdesc, ttstrings[ttype], trefmodes[ttype], tsels[ttype], "CS1000", samples, nsets); + { + disptech_info *dinfo; + char *tsel = NULL; /* character selector string */ + disptech dtech; + int trefmode; + + dinfo = disptech_get_id(tdtypes[ttype]); + if (ttype == 0) { +// ttstring = "Color Matching Function"; + tsel = "C"; + } else if (ttype == 1) { +// ttstring = "Custom"; + tsel = "U"; + } else { + tsel = dinfo->sel; + } + dtech = dinfo->dtech; + trefmode = dinfo->refr; + + /* Set it's values */ + rv->set_ccss(rv, "X-Rite", creatdate, NULL, dispdesc, dtech, trefmode, tsel, + "CS1000", samples, nsets); + } - free(tsels); - free(trefmodes); - free(ttstrings); + free(tdtypes); free(samples); return rv; @@ -2105,7 +2180,7 @@ static xfile *inno_extract(xfile *xi, char *tfilename, int verb) { if (verb > 1) printf("Decoded %ld bytes to created %ld bytes of Header output (ratio %.1f)\n",srclen,d1sz,(double)d1sz/srclen); // printf("d1buf, file names:\n"); -// dump_bytes(stdout, " ", d1buf, d1sz); +// adump_bytes(g_log, " ", d1buf, 0, d1sz); /* - - - - - - - - - - - - - - - - -*/ @@ -2163,7 +2238,7 @@ static xfile *inno_extract(xfile *xi, char *tfilename, int verb) { if (verb > 1) printf("Decoded %ld bytes to created %ld bytes of File Location output (ratio %.1f)\n",srclen,d1sz,(double)d1sz/srclen); // printf("d2buf, file location data:\n"); -// dump_bytes(stdout, " ", d2buf, d2sz); +// adump_bytes(g_log, " ", d2buf, 0, d2sz); if (verb > 1) printf("Searching for file '%s' in Header\n",tfilename); if (unicode) { @@ -2476,7 +2551,7 @@ static xfile *msi_extract_cab(xfile **pxf, xfile *xi, char *tname, int verb) { xf->ftype = file_dllcab; xf->ttype = xi->ttype; - if (verb) printf("Extacted '%s' length %ld\n",xf->name,xf->len); + if (verb) printf("Extracted '%s' length %ld\n",xf->name,xf->len); return xf; } @@ -2545,7 +2620,7 @@ static xfile *ai_extract_cab(xfile **pxf, xfile *xi, char *tname, int verb) { xf->ftype = file_dllcab; xf->ttype = xi->ttype; - if (verb) printf("Extacted '%s' length %ld\n",xf->name,xf->len); + if (verb) printf("Extracted '%s' length %ld\n",xf->name,xf->len); save_xfile(xf, "temp.cab", NULL, verb); @@ -2769,7 +2844,7 @@ static xfile *aifile_extract(xfile **pxf, xfile *xi, char *tname, int verb) { xf->ftype = file_dllcab; xf->ttype = xi->ttype; - if (verb) printf("Extacted '%s' length %ld\n",xf->name,xf->len); + if (verb) printf("Extracted '%s' length %ld\n",xf->name,xf->len); return xf; #endif diff --git a/spectro/oemarch.h b/spectro/oemarch.h index 1b8c4a4..b0b1a65 100644 --- a/spectro/oemarch.h +++ b/spectro/oemarch.h @@ -36,10 +36,12 @@ typedef enum { /* Possible type of target */ typedef enum { targ_none = 0x0000, /* None */ - targ_spyd_pld = 0x0001, /* Spyder PLD pattern */ - targ_spyd_cal = 0x0002, /* Spyder spectral calibration */ - targ_i1d3_edr = 0x0004, /* i1d3 .edr or .ccss */ - targ_ccmx = 0x0008 /* .ccmx */ + targ_spyd1_pld = 0x0001, /* Spyder1 PLD pattern (???) */ + targ_spyd2_pld = 0x0002, /* Spyder2 PLD pattern */ + targ_spyd_cal = 0x0004, /* Spyder spectral calibration */ + targ_i1d3_edr = 0x0008, /* i1d3 .edr or .ccss */ + targ_ccmx = 0x0010, /* .ccmx */ + targ_unknown = 0x8000 /* Unrecognized file format */ } targ_type; /* An install path, volume name or archive name */ diff --git a/spectro/oeminst.c b/spectro/oeminst.c index 2aa96e5..bce7a67 100644 --- a/spectro/oeminst.c +++ b/spectro/oeminst.c @@ -30,8 +30,10 @@ #include "aglob.h" #include "oemarch.h" #include "xspect.h" +#include "disptechs.h" #include "ccmx.h" #include "ccss.h" +#include "ui.h" void usage(void) { fprintf(stderr,"Install OEM data files, Version %s\n",ARGYLL_VERSION_STR); @@ -127,7 +129,7 @@ main(int argc, char *argv[]) { for (; fa < argc; fa++) { xfile *xf; xf = new_add_xf(&files, argv[fa], NULL, 0, file_arch | file_dllcab | file_data, - targ_spyd_pld | targ_spyd_cal + targ_spyd1_pld | targ_spyd2_pld | targ_spyd_cal | targ_i1d3_edr | targ_ccmx); if (load_xfile(xf, verb)) error("Unable to load file '%s'",xf->name); @@ -201,7 +203,9 @@ main(int argc, char *argv[]) { if (cx->buf_read_ccmx(cx, xf->buf, xf->len)) { error("Reading '%s' failed with '%s'\n",xf->name,cx->err); } - if (cx->cbid <= 0) + if (cx->dtech == disptech_unknown) + warning("'%s' has an unknown display technology set",xf->name); + if (cx->cc_cbid <= 0) error("'%s' doesn't contain DISPLAY_TYPE_BASE_ID field :- it can't be installed without this!",xf->name); if (cx->refrmode < 0) warning("'%s' doesn't contain DISPLAY_TYPE_REFRESH field :- non-refresh will be assumed!",xf->name); diff --git a/spectro/spec2cie.c b/spectro/spec2cie.c index 3f2e9d6..2465842 100644 --- a/spectro/spec2cie.c +++ b/spectro/spec2cie.c @@ -37,7 +37,7 @@ * If the -f option is used, the FWA corrected spectral reflectances * are written to the output .ti3 file, instead of simply copying the * spectral reflectances from the input .ti3 file. In this case, the - * XYZ_[XYZ] and LAB_[LAB] values are computed from the FWA corrected + * XYZ_[XYZ] and D50 LAB_[LAB] values are computed from the FWA corrected * reflectances as well. */ @@ -49,6 +49,11 @@ need to be normalised to Y=100 or marked as not normalised. Calibration tables aren't being passed through either ?? + + L*a*b* is always D50. + + This is intended for conversion of reflective measurements to XYZ - + there is no illuminant for emissive values. */ #define ALLOW_PLOT @@ -70,6 +75,7 @@ #ifdef ALLOW_PLOT #include "plot.h" #endif +#include "ui.h" void @@ -122,9 +128,9 @@ main(int argc, char *argv[]) icxIllumeType tillum = icxIT_none; /* Target/simulated instrument illuminant */ xspect cust_tillum, *tillump = NULL; /* Custom target/simulated illumination spectrum */ icxIllumeType illum = icxIT_D50; /* Spectral defaults */ - xspect cust_illum; /* Custom illumination spectrum */ + xspect cust_illum; /* Custom CIE illumination spectrum */ icxIllumeType inst_illum = icxIT_none; /* Spectral defaults */ - xspect inst_cust_illum; /* Custom illumination spectrum */ + xspect inst_cust_illum; /* Custom actual instrument illumination spectrum */ icxObserverType observ = icxOT_CIE_1931_2; int npat; /* Number of patches */ @@ -660,7 +666,7 @@ main(int argc, char *argv[]) xspect insp; /* Instrument illuminant */ if (inst_illum == icxIT_none) { - /* try to get from .ti3 file */ + /* try to get from .ti3 file */ if ((ti = icg->find_kword (icg, 0, "TARGET_INSTRUMENT")) < 0) error ("Can't find target instrument needed for FWA compensation"); @@ -672,11 +678,11 @@ main(int argc, char *argv[]) error ("Instrument doesn't have an FWA illuminent"); } else if (inst_illum == icxIT_custom) { - insp = inst_cust_illum; /* Structure copy */ + insp = inst_cust_illum; /* Structure copy */ } else { - if (standardIlluminant(&insp, inst_illum, 0) != 0) - error ("Failed to find standard illuminant"); + if (standardIlluminant(&insp, inst_illum, 0) != 0) + error ("Failed to find standard illuminant"); } /* If we are setting a specific simulated instrument illuminant */ @@ -704,7 +710,6 @@ main(int argc, char *argv[]) } for (i = 0; i < npat; i++) { - xspect corr_sp; /* copy all input colums to output (except spectral if nospec) */ @@ -735,7 +740,7 @@ main(int argc, char *argv[]) } if (fwacomp) { - corr_sp = sp; + corr_sp = sp; /* Copy spectrum */ /* Convert it to CIE space */ sp2cie->sconvert (sp2cie, &corr_sp, XYZ, &sp); @@ -802,6 +807,10 @@ main(int argc, char *argv[]) #endif } + /* Could use sp2cie->get_cie_il() to get CIE white point */ + /* if we wanted to return L*a*b* relative to that. */ + /* We would have to mark that in the .ti3 though. */ + /* This won't work for emmisive though, since get_cie_il() will return 'E' */ icmXYZ2Lab(&icmD50, Lab, XYZ); elems[Xi].d = XYZ[0] * 100.0; diff --git a/spectro/specbos.c b/spectro/specbos.c index f81f2d7..0d5bc5b 100644 --- a/spectro/specbos.c +++ b/spectro/specbos.c @@ -63,9 +63,6 @@ #include "icoms.h" #include "specbos.h" -/* Default flow control */ -#define DEFFC fc_none - static inst_code specbos_interp_code(inst *pp, int ec); #define MAX_MES_SIZE 500 /* Maximum normal message reply size */ @@ -96,6 +93,7 @@ int ctype, /* 0 = normal, 1 = *init, 2 = refr reading */ int nd /* nz to disable debug messages */ ) { int se; + int bread = 0; char *cp, *tc = "", *dp; if (ctype == 0) @@ -105,23 +103,34 @@ int nd /* nz to disable debug messages */ else if (ctype == 2) tc = "\r\025"; /* Return or Nak */ - if ((se = p->icom->write_read(p->icom, in, out, bsize, tc, ntc, to)) != 0) { + se = p->icom->write_read(p->icom, in, 0, out, bsize, &bread, tc, ntc, to); + + /* Because we are sometimes waiting for 3 x \r characters to terminate the read, */ + /* we will instead time out on getting a single NAK (\025), so convert timout */ + /* with bytes to non-timeout, so that we can process the error. */ + if (se == ICOM_TO && bread > 0) + se = ICOM_OK; + + if (se != 0) { if (!nd) a1logd(p->log, 1, "specbos_fcommand: serial i/o failure on write_read '%s' 0x%x\n",icoms_fix(in),se); return icoms2specbos_err(se); } /* See if there was an error, and remove any enquire codes */ - for (dp = cp = out; *cp != '\000' && (out - dp) < bsize; cp++) { - if (*cp == '\025') { /* Got a Nak */ + for (dp = cp = out; *cp != '\000' && (dp - out) < bsize; cp++) { + if (*cp == '\025') { /* Got a NAK */ char buf[100]; - if ((se = p->icom->write_read(p->icom, "*stat:err?\r", buf, 100, "\r", 1, 1.0)) != 0) { + if ((se = p->icom->write_read(p->icom, "*stat:err?\r", 0, buf, 100, NULL, "\r", 1, 1.0)) != 0) { if (!nd) a1logd(p->log, 1, "specbos_fcommand: serial i/o failure on write_read '%s'\n",icoms_fix(in)); - if (sscanf(buf, "Error Code: %d ",&se) != 1) { - if (!nd) a1logd(p->log, 1, "specbos_fcommand: failed to parse error code '%s'\n",icoms_fix(buf)); - return icoms2specbos_err(se); - } + return icoms2specbos_err(se);; } + if (sscanf(buf, "Error Code: %d ",&se) != 1) { + if (!nd) a1logd(p->log, 1, "specbos_fcommand: failed to parse error code '%s'\n",icoms_fix(buf)); + return SPECBOS_DATA_PARSE_ERROR; + } + + if (!nd) a1logd(p->log, 1, "Got specbos error code %d\n",se); break; } if (*cp == '\005') /* Got an Enquire */ @@ -131,10 +140,9 @@ int nd /* nz to disable debug messages */ } out[bsize-1] = '\000'; - if (!nd) a1logd(p->log, 4, "specbos_fcommand: command '%s' returned '%s'\n", - icoms_fix(in), icoms_fix(out)); - - return SPECBOS_OK; + if (!nd) a1logd(p->log, 4, "specbos_fcommand: command '%s' returned '%s' bytes %d, err 0x%x\n", + icoms_fix(in), icoms_fix(out),strlen(out), se); + return se; } /* Do a normal command/response echange with the specbos. */ @@ -164,7 +172,7 @@ double to /* Timeout in seconds */ int rv, se; char *cp, *tc = "\r\006\025"; /* Return, Ack or Nak */ - if ((se = p->icom->read(p->icom, out, bsize, tc, 1, to)) != 0) { + if ((se = p->icom->read(p->icom, out, bsize, NULL, tc, 1, to)) != 0) { a1logd(p->log, 1, "specbos_readresp: serial i/o failure\n"); return icoms2specbos_err(se); } @@ -172,7 +180,6 @@ double to /* Timeout in seconds */ } /* Establish communications with a specbos */ -/* Ignore the serial parameters - leave serial in default state. */ /* Return SPECBOS_COMS_FAIL on failure to establish communications */ static inst_code specbos_init_coms(inst *pp, baud_rate br, flow_control fc, double tout) { @@ -217,7 +224,7 @@ specbos_init_coms(inst *pp, baud_rate br, flow_control fc, double tout) { /* Check instrument is responding */ - if (((ev = specbos_command(p, "*idn?\r", buf, MAX_MES_SIZE, 0.2)) & inst_mask) + if (((ev = specbos_command(p, "*idn?\r", buf, MAX_MES_SIZE, 0.5)) & inst_mask) != inst_coms_fail) { break; /* We've got coms or user abort */ } @@ -282,8 +289,6 @@ specbos_init_coms(inst *pp, baud_rate br, flow_control fc, double tout) { return inst_ok; } -static inst_code set_default_disp_type(specbos *p); - /* Notes on commands @@ -357,28 +362,33 @@ static inst_code set_default_disp_type(specbos *p); */ static inst_code specbos_get_diffpos(specbos *p, int *pos, int nd); +static inst_code specbos_get_target_laser(specbos *p, int *laser, int nd); -/* Diffuser position thread. */ +/* Diffuser position and laser state thread. */ /* Poll the instrument at 500msec intervals */ int specbos_diff_thread(void *pp) { int nfailed = 0; specbos *p = (specbos *)pp; - inst_code rv = inst_ok; + inst_code rv1 = inst_ok; + inst_code rv2 = inst_ok; a1logd(p->log,3,"Diffuser thread started\n"); - for (nfailed = 0; nfailed < 5;) { +// for (nfailed = 0; nfailed < 5;) + /* Try indefinitely, in case instrument is put to sleep */ + for (;;) { int pos; amutex_lock(p->lock); - rv = specbos_get_diffpos(p, &pos, 1); + rv1 = specbos_get_diffpos(p, &pos, 1); + rv2 = specbos_get_target_laser(p, &p->laser, 1); amutex_unlock(p->lock); if (p->th_term) { p->th_termed = 1; break; } - if (rv != inst_ok) { + if (rv1 != inst_ok || rv2 != inst_ok) { nfailed++; - a1logd(p->log,3,"Diffuser thread failed with 0x%x\n",rv); + a1logd(p->log,3,"Diffuser thread failed with 0x%x 0x%x\n",rv1,rv2); continue; } if (pos != p->dpos) { @@ -390,7 +400,7 @@ int specbos_diff_thread(void *pp) { msec_sleep(500); } a1logd(p->log,3,"Diffuser thread returning\n"); - return rv; + return rv1 != inst_ok ? rv1 : rv2; } /* Initialise the SPECBOS */ @@ -544,7 +554,7 @@ specbos_init_inst(inst *pp) { return inst_ok; } -static inst_code specbos_measure_set_refresh(specbos *p); +static inst_code specbos_imp_measure_set_refresh(specbos *p); static inst_code specbos_imp_set_refresh(specbos *p); /* Get the ambient diffuser position */ @@ -569,6 +579,29 @@ specbos_get_diffpos( return inst_ok; } +/* Get the target laser state */ +/* (This is not multithread safe) */ +static inst_code +specbos_get_target_laser( + specbos *p, /* Object */ + int *laser, /* 0 = off, 1 = on */ + int nd /* nz = no debug message */ +) { + char buf[MAX_RD_SIZE]; + int ec; + int lstate; + + if ((ec = specbos_fcommand(p, "*contr:laser?\r", buf, MAX_MES_SIZE, 1.0, 1, 0, nd)) != inst_ok) { + return specbos_interp_code((inst *)p, ec); + } + if (sscanf(buf, "laser: %d ",&lstate) != 1) { + a1loge(p->log, 2, "specbos_get_target_laser: failed to parse laser state\n"); + return inst_protocol_error; + } + *laser = lstate; + return inst_ok; +} + /* Read a single sample */ /* Return the dtp error code */ static inst_code @@ -649,50 +682,94 @@ instClamping clamp) { /* NZ if clamp XYZ/Lab to be +ve */ amutex_unlock(p->lock); return rv; } + p->laser = 0; /* Attempt a refresh display frame rate calibration if needed */ if (p->refrmode != 0 && p->rrset == 0) { - if ((rv = specbos_measure_set_refresh(p)) != inst_ok) { + a1logd(p->log, 1, "specbos: need refresh rate calibration before measure\n"); + if ((rv = specbos_imp_measure_set_refresh(p)) != inst_ok) { amutex_unlock(p->lock); return rv; } } /* Trigger a measurement */ - if ((ec = specbos_fcommand(p, "*init\r", buf, MAX_MES_SIZE, 5.0 * p->measto + 2.0 , 1, 1, 0)) != SPECBOS_OK) { + /* (Note that ESC will abort it) */ + if ((ec = specbos_fcommand(p, "*init\r", buf, MAX_MES_SIZE, 5.0 * p->measto + 10.0 , 1, 1, 0)) != SPECBOS_OK) { amutex_unlock(p->lock); return specbos_interp_code((inst *)p, ec); } - /* Read the XYZ */ - if ((ec = specbos_fcommand(p, "*fetch:XYZ\r", buf, MAX_RD_SIZE, 0.5, 3, 0, 0)) != SPECBOS_OK) { - amutex_unlock(p->lock); - return specbos_interp_code((inst *)p, ec); + + if (p->noXYZ) { /* Will fail, so assume it failed */ + ec = SPECBOS_COMMAND; + + } else { /* Read the XYZ */ + ec = specbos_fcommand(p, "*fetch:XYZ\r", buf, MAX_RD_SIZE, 0.5, 3, 0, 0); } - if (sscanf(buf, " X: %lf Y: %lf Z: %lf ", - &val->XYZ[0], &val->XYZ[1], &val->XYZ[2]) == 3) { - - /* This may not change anything since instrument may clamp */ - if (clamp) - icmClamp3(val->XYZ, val->XYZ); - val->loc[0] = '\000'; - if (p->mode & inst_mode_ambient) { - val->mtype = inst_mrt_ambient; - } else - val->mtype = inst_mrt_emission; - val->XYZ_v = 1; /* These are absolute XYZ readings */ - val->sp.spec_n = 0; - val->duration = 0.0; - rv = inst_ok; - } else { + + if (ec == SPECBOS_OK) { + + if (sscanf(buf, " X: %lf Y: %lf Z: %lf ", + &val->XYZ[0], &val->XYZ[1], &val->XYZ[2]) != 3) { + amutex_unlock(p->lock); + a1logd(p->log, 1, "specbos_read_sample: failed to parse '%s'\n",buf); + return inst_protocol_error; + } + + /* Hmm. Some older firmware versions are reported to not support the */ + /* "fetch:XYZ" command. Use an alternative if it fails. */ + } else if (ec == SPECBOS_COMMAND) { + double Yxy[3]; + + p->noXYZ = 1; + + if ((ec = specbos_fcommand(p, "*fetch:PHOTOmetric\r", buf, MAX_RD_SIZE, 0.5, 3, 0, 0)) + != SPECBOS_OK) { + amutex_unlock(p->lock); + return specbos_interp_code((inst *)p, ec); + } + if (sscanf(buf, "Luminance[cd/m^2]: %lf ", &Yxy[0]) != 1) { + amutex_unlock(p->lock); + a1logd(p->log, 1, "specbos_read_sample: failed to parse '%s'\n",buf); + return inst_protocol_error; + } + + if ((ec = specbos_fcommand(p, "*fetch:CHROMXY\r", buf, MAX_RD_SIZE, 0.5, 3, 0, 0)) + != SPECBOS_OK) { + amutex_unlock(p->lock); + return specbos_interp_code((inst *)p, ec); + } + if (sscanf(buf, "Chrom_x: %lf Chrom_y: %lf ", &Yxy[1], &Yxy[2]) != 2) { + amutex_unlock(p->lock); + a1logd(p->log, 1, "specbos_read_sample: failed to parse '%s'\n",buf); + return inst_protocol_error; + } + icmYxy2XYZ(val->XYZ, Yxy); + + } else if (ec != SPECBOS_OK) { amutex_unlock(p->lock); - a1logd(p->log, 1, "specbos_read_sample: failed to parse '%s'\n",buf); - return inst_protocol_error; + return specbos_interp_code((inst *)p, ec); } + /* This may not change anything since instrument may clamp */ + if (clamp) + icmClamp3(val->XYZ, val->XYZ); + val->loc[0] = '\000'; + if (p->mode & inst_mode_ambient) { + val->mtype = inst_mrt_ambient; + } else + val->mtype = inst_mrt_emission; + val->XYZ_v = 1; /* These are absolute XYZ readings */ + val->sp.spec_n = 0; + val->duration = 0.0; + rv = inst_ok; + + /* spectrum data is returned only if requested */ if (p->mode & inst_mode_spectral) { + int tries, maxtries = 5; int i, xsize; char *cp, *ncp; @@ -700,32 +777,53 @@ instClamping clamp) { /* NZ if clamp XYZ/Lab to be +ve */ /* (Format 9 reportedly doesn't work on the 1201) */ /* The folling works on the 1211 and is reported to work on the 1201 */ - /* Fetch the spectral readings */ - if ((ec = specbos_fcommand(p, "*fetch:sprad\r", buf, MAX_RD_SIZE, 1.0, 2+p->nbands+1, 0, 0)) != SPECBOS_OK) { - return specbos_interp_code((inst *)p, ec); - } - - val->sp.spec_n = p->nbands; - val->sp.spec_wl_short = p->wl_short; - val->sp.spec_wl_long = p->wl_long; - - /* Spectral data is in W/nm/m^2 */ - val->sp.norm = 1.0; - cp = buf; - for (i = -2; i < val->sp.spec_n; i++) { - if ((ncp = strchr(cp, '\r')) == NULL) { - amutex_unlock(p->lock); - a1logd(p->log, 1, "specbos_read_sample: failed to parse spectral\n"); - return inst_protocol_error; + /* Because the specbos doesn't use flow control in its */ + /* internal serial communications, it may overrun */ + /* the FT232R buffer, so retry fetching the spectra if */ + /* we get a comm error or parsing error. */ + for (tries = 0;;) { + + /* Fetch the spectral readings */ + ec = specbos_fcommand(p, "*fetch:sprad\r", buf, MAX_RD_SIZE, 4.0, 2+p->nbands+1, 0, 0); + tries++; + if (ec != SPECBOS_OK) { + if (tries > maxtries) { + amutex_unlock(p->lock); + a1logd(p->log, 1, "specbos_fcommand: failed with 0x%x\n",ec); + return specbos_interp_code((inst *)p, ec); + } + continue; /* Retry the fetch */ } - *ncp = '\000'; - if (i >= 0) { - val->sp.spec[i] = 1000.0 * atof(cp); /* Convert to mW/m^2/nm */ - if (p->mode & inst_mode_ambient) - val->mtype = inst_mrt_ambient; + + val->sp.spec_n = p->nbands; + val->sp.spec_wl_short = p->wl_short; + val->sp.spec_wl_long = p->wl_long; + + /* Spectral data is in W/nm/m^2 */ + val->sp.norm = 1.0; + cp = buf; + for (i = -2; i < val->sp.spec_n; i++) { + if ((ncp = strchr(cp, '\r')) == NULL) { + a1logd(p->log, 1, "specbos_read_sample: failed to parse spectra at %d/%d\n",i+1,val->sp.spec_n); + if (tries > maxtries) { + amutex_unlock(p->lock); + return inst_protocol_error; + } + continue; /* Retry the fetch and parse */ + } + *ncp = '\000'; + if (i >= 0) { + a1logd(p->log, 6, "sample %d/%d got %f from '%s'\n",i+1,val->sp.spec_n,atof(cp),cp); + val->sp.spec[i] = 1000.0 * atof(cp); /* Convert to mW/m^2/nm */ + if (p->mode & inst_mode_ambient) + val->mtype = inst_mrt_ambient; + } + cp = ncp+1; } - cp = ncp+1; + /* We've parsed correctly, so don't retry */ + break; } + a1logd(p->log, 1, "specbos_read_sample: got total %d samples/%d expected in %d tries\n",i,val->sp.spec_n, tries); } amutex_unlock(p->lock); @@ -778,6 +876,9 @@ double *ref_rate int ec; inst_code rv; + if (ref_rate != NULL) + *ref_rate = 0.0; + if (p->model == 1201) return inst_unsupported; @@ -822,6 +923,9 @@ double *ref_rate if (!p->inited) return inst_no_init; + if (ref_rate != NULL) + *ref_rate = 0.0; + amutex_lock(p->lock); if ((rv = specbos_imp_measure_refresh(p, &refrate)) != inst_ok) { amutex_unlock(p->lock); @@ -832,14 +936,16 @@ double *ref_rate if (refrate == 0.0) return inst_misread; - *ref_rate = refrate; + if (ref_rate != NULL) + *ref_rate = refrate; return inst_ok; } /* Measure and then set refperiod, refrate if possible */ +/* (Not thread safe) */ static inst_code -specbos_measure_set_refresh( +specbos_imp_measure_set_refresh( specbos *p /* Object */ ) { inst_code rv; @@ -847,9 +953,7 @@ specbos_measure_set_refresh( int mul; double pval; - amutex_lock(p->lock); if ((rv = specbos_imp_measure_refresh(p, &refrate)) != inst_ok) { - amutex_unlock(p->lock); return rv; } @@ -865,14 +969,25 @@ specbos_measure_set_refresh( p->rrset = 1; if ((rv = specbos_imp_set_refresh(p)) != inst_ok) { - amutex_unlock(p->lock); return rv; } - amutex_unlock(p->lock); return inst_ok; } +/* Measure and then set refperiod, refrate if possible */ +static inst_code +specbos_measure_set_refresh( + specbos *p /* Object */ +) { + int rv; + + amutex_lock(p->lock); + rv = specbos_imp_measure_set_refresh(p); + amutex_unlock(p->lock); + return rv; +} + /* Return needed and available inst_cal_type's */ static inst_code specbos_get_n_a_cals(inst *pp, inst_cal_type *pn_cals, inst_cal_type *pa_cals) { specbos *p = (specbos *)pp; @@ -1291,7 +1406,7 @@ specbos_del(inst *pp) { } /* Return the instrument mode capabilities */ -void specbos_capabilities(inst *pp, +static void specbos_capabilities(inst *pp, inst_mode *pcap1, inst2_capability *pcap2, inst3_capability *pcap3) { @@ -1329,6 +1444,7 @@ inst3_capability *pcap3) { } /* Return current or given configuration available measurement modes. */ +/* NOTE that conf_ix values shoudn't be changed, as it is used as a persistent key */ static inst_code specbos_meas_config( inst *pp, inst_mode *mmodes, @@ -1383,7 +1499,7 @@ int *conf_ix } /* Check device measurement mode */ -inst_code specbos_check_mode(inst *pp, inst_mode m) { +static inst_code specbos_check_mode(inst *pp, inst_mode m) { inst_mode cap; if (!pp->gotcoms) @@ -1407,7 +1523,7 @@ inst_code specbos_check_mode(inst *pp, inst_mode m) { } /* Set device measurement mode */ -inst_code specbos_set_mode(inst *pp, inst_mode m) { +static inst_code specbos_set_mode(inst *pp, inst_mode m) { specbos *p = (specbos *)pp; int refrmode; inst_code ev; @@ -1438,13 +1554,14 @@ inst_code specbos_set_mode(inst *pp, inst_mode m) { return inst_ok; } -inst_disptypesel specbos_disptypesel[3] = { +static inst_disptypesel specbos_disptypesel[3] = { { inst_dtflags_default, 1, "nl", "Non-Refresh display", 0, + disptech_lcd, 0 }, { @@ -1453,6 +1570,7 @@ inst_disptypesel specbos_disptypesel[3] = { "rc", /* sel */ "Refresh display", /* desc */ 1, /* refr */ + disptech_crt, /* disptype */ 1 /* ix */ }, { @@ -1461,6 +1579,7 @@ inst_disptypesel specbos_disptypesel[3] = { "", "", 0, + disptech_none, 0 } }; @@ -1527,7 +1646,7 @@ static inst_code set_disp_type(specbos *p, inst_disptypesel *dentry) { return inst_ok; } -/* Set the display type */ +/* Set the display type - refresh or not */ static inst_code specbos_set_disptype(inst *pp, int ix) { specbos *p = (specbos *)pp; inst_code ev; @@ -1576,8 +1695,24 @@ specbos_get_set_opt(inst *pp, inst_opt_type m, ...) return inst_ok; } + /* Get laser target state. */ + /* For speed we don't return the real time state, */ + /* but the state from the last poll */ + if (m == inst_opt_get_target_state) { + va_list args; + int *pstate; + + va_start(args, m); + pstate = va_arg(args, int *); + va_end(args); + + if (pstate != NULL) + *pstate = p->laser; + + return inst_ok; + /* Set laser target state */ - if (m == inst_opt_set_target_state) { + } else if (m == inst_opt_set_target_state) { va_list args; int state = 0; @@ -1586,41 +1721,31 @@ specbos_get_set_opt(inst *pp, inst_opt_type m, ...) va_end(args); amutex_lock(p->lock); - if (state == 2) { - int lstate = -1; - if ((ev = specbos_command(p, "*contr:laser?\r", buf, MAX_MES_SIZE, 1.0)) != inst_ok) { - amutex_unlock(p->lock); - a1loge(p->log, 1, "specbos_get_set_opt: failed to send laser? command\n"); - return ev; - } - if (sscanf(buf, "laser: %d ",&lstate) != 1) { + if (state == 2) { /* Toggle */ + + /* Get the current state */ + if ((ev = specbos_get_target_laser(p, &p->laser, 0)) != inst_ok) { amutex_unlock(p->lock); - a1loge(p->log, 1, "specbos_get_set_opt: failed to parse laser state\n"); return ev; } - a1logd(p->log, 5, " Laser state = %d\n",lstate); - if (lstate == 0) - lstate = 1; - else if (lstate == 1) - lstate = 0; - if (lstate == 0 || lstate == 1) { - char mes[100]; - sprintf(mes,"*contr:laser %d\r",lstate); - if ((ev = specbos_command(p, mes, buf, MAX_MES_SIZE, 1.0)) != inst_ok) { - amutex_unlock(p->lock); - return ev; - } - } - } else if (state == 1) { + a1logd(p->log, 5, " Laser state = %d\n",p->laser); + if (p->laser == 0) + state = 1; + else if (p->laser == 1) + state = 0; + } + if (state == 1) { if ((ev = specbos_command(p, "*contr:laser 1\r", buf, MAX_MES_SIZE, 1.0)) != inst_ok) { amutex_unlock(p->lock); return ev; } + p->laser = 1; } else if (state == 0) { if ((ev = specbos_command(p, "*contr:laser 0\r", buf, MAX_MES_SIZE, 1.0)) != inst_ok) { amutex_unlock(p->lock); return ev; } + p->laser = 0; } amutex_unlock(p->lock); return inst_ok; diff --git a/spectro/specbos.h b/spectro/specbos.h index 2bc601e..86e7405 100644 --- a/spectro/specbos.h +++ b/spectro/specbos.h @@ -128,6 +128,8 @@ struct _specbos { /* 1201 */ /* 1211 */ + int noXYZ; /* nz if firmware doesn't support fetch*XYZ */ + inst_mode mode; /* Currently instrument mode */ int refrmode; /* nz if in refresh display mode */ @@ -149,6 +151,7 @@ struct _specbos { volatile int th_term; /* nz to terminate thread */ volatile int th_termed; /* nz when thread terminated */ int dpos; /* Diffuser position, 0 = emissive, 1 = ambient */ + int laser; /* Target laser state, nz = on */ }; typedef struct _specbos specbos; diff --git a/spectro/spotread.c b/spectro/spotread.c index 4d65916..7689986 100644 --- a/spectro/spotread.c +++ b/spectro/spotread.c @@ -52,20 +52,20 @@ #include "xicc.h" #include "conv.h" #include "plot.h" +#include "ui.h" #else /* SALONEINSTLIB */ #include "sa_config.h" #include "numsup.h" #include "xspect.h" #include "conv.h" #endif /* SALONEINSTLIB */ -#include "ccss.h" -#include "ccmx.h" #include "inst.h" #include "icoms.h" +#include "ccss.h" +#include "ccmx.h" #include "instappsup.h" -#include "spyd2setup.h" -#ifdef EN_SPYD2 -#include "spyd2setup.h" +#ifdef ENABLE_USB +# include "spyd2.h" #endif #if defined (NT) @@ -238,12 +238,20 @@ static int gcc_bug_fix(int i) { } #endif /* APPLE */ +/* A user callback to trigger for -O option */ +static inst_code uicallback(void *cntx, inst_ui_purp purp) { + + if (purp == inst_armed) + return inst_user_trig; + return inst_ok; +} + /* Flags used: ABCDEFGHIJKLMNOPQRSTUVWXYZ - upper ... . . . . .. ... + upper ... . . .. . .. ... lower . .... .. . .. . .. */ @@ -255,8 +263,6 @@ usage(char *diag, ...) { inst2_capability cap2 = 0; fprintf(stderr,"Measure spot values, Version %s\n",ARGYLL_VERSION_STR); fprintf(stderr,"Author: Graeme W. Gill, licensed under the GPL Version 2 or later\n"); - if (setup_spyd2() == 2) - fprintf(stderr,"WARNING: This file contains a proprietary firmware image, and may not be freely distributed !\n"); if (diag != NULL) { va_list args; fprintf(stderr,"Diagnostic: "); @@ -279,7 +285,8 @@ usage(char *diag, ...) { for (i = 0; ; i++) { if (paths[i] == NULL) break; - if (paths[i]->itype == instSpyder2 && setup_spyd2() == 0) + if ((paths[i]->itype == instSpyder1 && setup_spyd2(0) == 0) + || (paths[i]->itype == instSpyder2 && setup_spyd2(1) == 0)) fprintf(stderr," %d = '%s' !! Disabled - no firmware !!\n",i+1,paths[i]->name); else fprintf(stderr," %d = '%s'\n",i+1,paths[i]->name); @@ -301,7 +308,7 @@ usage(char *diag, ...) { fprintf(stderr," -I illum Set simulated instrument illumination using FWA (def -i illum):\n"); fprintf(stderr," M0, M1, M2, A, C, D50, D50M2, D65, F5, F8, F10 or file.sp]\n"); #endif - fprintf(stderr," -i illum Choose illuminant for computation of CIE XYZ from spectral data & FWA:\n"); + fprintf(stderr," -i illum Choose illuminant for computation of CIE XYZ from spectral reflectance & FWA:\n"); #ifndef SALONEINSTLIB fprintf(stderr," A, C, D50 (def.), D50M2, D65, F5, F8, F10 or file.sp\n"); #else @@ -330,6 +337,7 @@ usage(char *diag, ...) { #endif /* !SALONEINSTLIB */ // fprintf(stderr," -K type Run instrument calibration first\n"); fprintf(stderr," -N Disable auto calibration of instrument\n"); + fprintf(stderr," -O Do one cal. or measure and exit\n"); fprintf(stderr," -H Start in high resolution spectrum mode (if available)\n"); if (cap2 & inst2_ccmx) fprintf(stderr," -X file.ccmx Apply Colorimeter Correction Matrix\n"); @@ -356,6 +364,7 @@ int main(int argc, char *argv[]) { int debug = 0; int docalib = 0; /* Do a manual instrument calibration */ int nocal = 0; /* Disable auto calibration */ + int doone = 0; /* Do one calibration or measure and exit */ int pspec = 0; /* 1 = Print out the spectrum for each reading */ /* 2 = Plot out the spectrum for each reading */ int trans = 0; /* Use transmissioin mode */ @@ -393,8 +402,10 @@ int main(int argc, char *argv[]) { inst_code rv; int uswitch = 0; /* Instrument switch is enabled */ int spec = 0; /* Need spectral data for observer/illuminant flag */ + int tillum_set = 0; /* User asked for custom target illuminant spectrum */ icxIllumeType tillum = icxIT_none; /* Target/simulated instrument illuminant */ xspect cust_tillum, *tillump = NULL; /* Custom target/simulated illumination spectrum */ + int illum_set = 0; /* User asked for custom illuminant spectrum */ icxIllumeType illum = icxIT_D50; /* Spectral defaults */ xspect cust_illum; /* Custom illumination spectrum */ icxObserverType obType = icxOT_default; @@ -403,7 +414,8 @@ int main(int argc, char *argv[]) { xsp2cie *sp2cie = NULL; /* default conversion */ xsp2cie *sp2cief[26]; /* FWA corrected conversions */ double wXYZ[3] = { -10.0, 0, 0 };/* White XYZ for display white relative */ - double chmat[3][3]; /* Chromatic adapation matrix */ + double chmat[3][3]; /* Chromatic adapation matrix for white point relative */ + double XYZ[3] = { 0.0, 0.0, 0.0 }; /* Last XYZ scaled 0..100 or absolute */ double Lab[3] = { -10.0, 0, 0}; /* Last Lab */ double rXYZ[3] = { 0.0, -10.0, 0}; /* Reference XYZ */ double rLab[3] = { -10.0, 0, 0}; /* Reference Lab */ @@ -421,7 +433,6 @@ int main(int argc, char *argv[]) { set_exe_path(argv[0]); /* Set global exe_path and error_program */ check_if_not_interactive(); - setup_spyd2(); /* Load firware if available */ for (i = 0; i < 26; i++) sp2cief[i] = NULL; @@ -492,33 +503,33 @@ int main(int argc, char *argv[]) { if (na == NULL) usage("Paramater expected following -I"); if (strcmp(na, "A") == 0 || strcmp(na, "M0") == 0) { - spec = 1; + tillum_set = spec = 1; tillum = icxIT_A; } else if (strcmp(na, "C") == 0) { - spec = 1; + tillum_set = spec = 1; tillum = icxIT_C; } else if (strcmp(na, "D50") == 0 || strcmp(na, "M1") == 0) { - spec = 1; + tillum_set = spec = 1; tillum = icxIT_D50; } else if (strcmp(na, "D50M2") == 0 || strcmp(na, "M2") == 0) { - spec = 1; + tillum_set = spec = 1; tillum = icxIT_D50M2; } else if (strcmp(na, "D65") == 0) { - spec = 1; + tillum_set = spec = 1; tillum = icxIT_D65; } else if (strcmp(na, "F5") == 0) { - spec = 1; + tillum_set = spec = 1; tillum = icxIT_F5; } else if (strcmp(na, "F8") == 0) { - spec = 1; + tillum_set = spec = 1; tillum = icxIT_F8; } else if (strcmp(na, "F10") == 0) { - spec = 1; + tillum_set = spec = 1; tillum = icxIT_F10; } else { /* Assume it's a filename */ - spec = 1; + tillum_set = spec = 1; tillum = icxIT_custom; if (read_xspect(&cust_tillum, na) != 0) usage("Failed to read custom target illuminant spectrum in file '%s'",na); @@ -530,32 +541,32 @@ int main(int argc, char *argv[]) { fa = nfa; if (na == NULL) usage("Paramater expected following -i"); if (strcmp(na, "A") == 0) { - spec = 1; + illum_set = spec = 1; illum = icxIT_A; } else if (strcmp(na, "C") == 0) { - spec = 1; + illum_set = spec = 1; illum = icxIT_C; } else if (strcmp(na, "D50") == 0) { - spec = 1; + illum_set = spec = 1; illum = icxIT_D50; } else if (strcmp(na, "D50M2") == 0) { - spec = 1; + illum_set = spec = 1; illum = icxIT_D50M2; } else if (strcmp(na, "D65") == 0) { - spec = 1; + illum_set = spec = 1; illum = icxIT_D65; #ifndef SALONEINSTLIB } else if (strcmp(na, "F5") == 0) { - spec = 1; + illum_set = spec = 1; illum = icxIT_F5; } else if (strcmp(na, "F8") == 0) { - spec = 1; + illum_set = spec = 1; illum = icxIT_F8; } else if (strcmp(na, "F10") == 0) { - spec = 1; + illum_set = spec = 1; illum = icxIT_F10; } else { /* Assume it's a filename */ - spec = 1; + illum_set = spec = 1; illum = icxIT_custom; if (read_xspect(&cust_illum, na) != 0) usage("Unable to read custom illuminant file '%s'",na); @@ -622,9 +633,9 @@ int main(int argc, char *argv[]) { if (argv[fa][2] != '\000') { fa = nfa; if (argv[fa][2] == 'b' || argv[fa][2] == 'B') - emiss = 2; + emiss = 2; /* Display brightness relative */ else if (argv[fa][2] == 'w' || argv[fa][2] == 'W') - emiss = 3; + emiss = 3; /* Display white point relative */ else usage("-p modifier '%c' not recognised",argv[fa][2]); } @@ -698,6 +709,10 @@ int main(int argc, char *argv[]) { } else if (argv[fa][1] == 'N') { nocal = 1; + /* Do one cal. or measure and exit */ + } else if (argv[fa][1] == 'O') { + doone = 1; + /* High res mode */ } else if (argv[fa][1] == 'H') { highres = 1; @@ -774,6 +789,11 @@ int main(int argc, char *argv[]) { } } + /* Check for some user mistakes */ + + if ((tillum_set || illum_set) && emiss) + warning("-I or -i parameter makes no sense with emissive or ambient measurement!"); + /* - - - - - - - - - - - - - - - - - - - */ if ((icmps = new_icompaths(g_log)) == NULL) error("Finding instrument paths failed"); @@ -943,7 +963,7 @@ int main(int argc, char *argv[]) { return -1; } } else - printf("Display type ignored - instrument doesn't support display type\n"); + printf("Display type ignored - instrument doesn't support display type selection\n"); } } else { @@ -1083,7 +1103,7 @@ int main(int argc, char *argv[]) { it->del(it); return -1; } - if ((rv = it->col_cor_mat(it, cx->matrix)) != inst_ok) { + if ((rv = it->col_cor_mat(it, cx->dtech, cx->cc_cbid, cx->matrix)) != inst_ok) { printf("\nSetting Colorimeter Correction Matrix failed with error :'%s' (%s)\n", it->inst_interp_error(it, rv), it->interp_error(it, rv)); cx->del(cx); @@ -1122,7 +1142,7 @@ int main(int argc, char *argv[]) { it->del(it); return -1; } - if ((rv = it->col_cal_spec_set(it, cs->samples, cs->no_samp)) != inst_ok) { + if ((rv = it->col_cal_spec_set(it, cs->dtech, cs->samples, cs->no_samp)) != inst_ok) { printf("\nSetting Colorimeter Calibration Spectral Samples failed with error :'%s' (%s)\n", it->inst_interp_error(it, rv), it->interp_error(it, rv)); cs->del(cs); @@ -1229,6 +1249,10 @@ int main(int argc, char *argv[]) { if (verb) printf("Init instrument success !\n"); + if (doone) { /* Set to trigger immediately */ + it->set_uicallback(it, uicallback, NULL); + } + if (spec) { /* Any non-illuminated mode has no illuminant */ if (emiss || tele || ambient) @@ -1267,7 +1291,6 @@ int main(int argc, char *argv[]) { /* Read spots until the user quits */ for (ix = 1;; ix++) { ipatch val; - double XYZ[3] = { 0.0, 0.0, 0.0 }; /* XYZ scaled 0..100 or absolute */ double tXYZ[3]; #ifndef SALONEINSTLIB double cct, vct, vdt; @@ -1425,7 +1448,7 @@ int main(int argc, char *argv[]) { } } - ev = inst_handle_calibrate(it, inst_calt_needed, inst_calc_none, NULL, NULL); + ev = inst_handle_calibrate(it, inst_calt_needed, inst_calc_none, NULL, NULL, doone); if (ev != inst_ok) { /* Abort or fatal error */ printf("\nSpot read got abort or error from calibration\n"); break; @@ -1445,6 +1468,9 @@ int main(int argc, char *argv[]) { break; /* Abort */ } } + + if (doone) + break; } if (ambient == 2) { /* Flash ambient */ @@ -1609,7 +1635,7 @@ int main(int argc, char *argv[]) { } else if ((rv & inst_mask) == inst_needs_cal) { inst_code ev; printf("\n\nSpot read failed because instruments needs calibration.\n"); - ev = inst_handle_calibrate(it, inst_calt_needed, inst_calc_none, NULL, NULL); + ev = inst_handle_calibrate(it, inst_calt_needed, inst_calc_none, NULL, NULL, doone); if (ev != inst_ok) { /* Abort or fatal error */ printf("\nSpot read got abort or error from calibrate\n"); break; @@ -1790,7 +1816,7 @@ int main(int argc, char *argv[]) { } } - ev = inst_handle_calibrate(it, inst_calt_available, inst_calc_none, NULL, NULL); + ev = inst_handle_calibrate(it, inst_calt_available, inst_calc_none, NULL, NULL, doone); if (ev != inst_ok) { /* Abort or fatal error */ printf("\nSpot read got abort or error from calibrate\n"); break; @@ -1874,8 +1900,9 @@ int main(int argc, char *argv[]) { printf("\nRefresh rate hasn't been calibrated\n"); - if ((ev = it->get_set_opt(it, inst_opt_get_dtinfo, &refrmode, NULL)) != inst_ok) { - printf("Can't get curretn refresh mode from instrument\n"); + /* (refrmode may be the default disptype_unknown refrmode) */ + if ((ev = it->get_disptechi(it, NULL, &refrmode, NULL)) != inst_ok) { + printf("Can't get current refresh mode from instrument\n"); --ix; continue; } @@ -1885,7 +1912,7 @@ int main(int argc, char *argv[]) { continue; } - ev = inst_handle_calibrate(it, inst_calt_ref_freq, inst_calc_none, NULL, NULL); + ev = inst_handle_calibrate(it, inst_calt_ref_freq, inst_calc_none, NULL, NULL, doone); if (ev != inst_ok) { /* Abort or fatal error */ printf("\nSpot read got abort or error from calibrate\n"); @@ -2169,9 +2196,6 @@ int main(int argc, char *argv[]) { else { /* emiss == 3, white point relative */ /* Normalize to white and scale to 0..100 */ -// XYZ[0] = XYZ[0] * icmD50_100.X / wXYZ[0]; -// XYZ[1] = XYZ[1] * icmD50_100.Y / wXYZ[1]; -// XYZ[2] = XYZ[2] * icmD50_100.Z / wXYZ[2]; icmMulBy3x3(XYZ, chmat, XYZ); icmScale3(XYZ, XYZ, 100.0); } @@ -2326,6 +2350,9 @@ int main(int argc, char *argv[]) { fprintf(fp,"\n"); } } + if (doone) + break; + } /* Next reading */ /* Release paper */ diff --git a/spectro/spyd2.c b/spectro/spyd2.c index dc09cea..72c0b21 100644 --- a/spectro/spyd2.c +++ b/spectro/spyd2.c @@ -29,15 +29,15 @@ enable the Argyll driver for this instrument by using the oeminst utility to create a spyd2PLD.bin file. - [ The Spyder 3 & 4 don't need a PLD firmware file. ] + [ The Spyder 3, 4 & 5 don't need a PLD firmware file. ] - The Spyder 4 instrument will not have the full range of manufacturer + The Spyder 4 & 5 instrument will not have the full range of manufacturer calibration settings available without the vendor calibration data. This calibration day is not provided with Argyll, since it is not available under a compatible license. - The purchaser of a Spyder 4 instrument should have received a copy + The purchaser of a Spyder 4 or 5 instrument should have received a copy of this calibration data along with their instrument, and should therefore be able to enable the use of the full range of calibration settings by using the spyd4en utility to create a spyd4cal.bin file. @@ -52,7 +52,7 @@ (Perhaps it has only 4 sensors ?) The frequency measurement is not very accurate, particularly for - the Spyder 3 & 4, being too low by about 3.5%. + the Spyder 3, 4 & 5, being too low by about 3.5%. */ @@ -103,9 +103,9 @@ #undef PLOT_SPECTRA /* Plot the sensor senitivity spectra */ #undef PLOT_SPECTRA_EXTRA /* Plot the sensor senitivity spectra extra values */ -#undef SAVE_SPECTRA /* Save the sensor senitivity spectra to "sensors.sp" */ -#undef SAVE_XYZSPECTRA /* Save the XYZ senitivity spectra to "sensorsxyz.sp" (scale 1.4) */ -#undef SAVE_STDXYZ /* save 1931 2 degree to stdobsxyz.sp */ +#undef SAVE_SPECTRA /* Save the sensor senitivity spectra to "sensors.cmf" */ +#undef SAVE_XYZSPECTRA /* Save the XYZ senitivity spectra to "sensorsxyz.cmf" (scale 1.4) */ +#undef SAVE_STDXYZ /* save 1931 2 degree to stdobsxyz.cmf */ #define DO_RESETEP /* Do the miscelanous resetep()'s */ @@ -171,6 +171,14 @@ static int buf2ushort(unsigned char *buf) { return val; } +/* Take a unsigned short sized buffer, and convert it to an int little endian */ +static int buf2uleshort(unsigned char *buf) { + int val; + val = (0xff & buf[1]); + val = ((val << 8) + (0xff & buf[0])); + return val; +} + /* Take a word sized buffer, and convert it to an int big endian. */ static int buf2int(unsigned char *buf) { int val; @@ -267,6 +275,7 @@ spyd2_reset( if (retr >= RETRIES ) { a1logd(p->log, 1, "spyd2_reset: failed with ICOM err 0x%x\n",se); return spyd2_interp_code((inst *)p, icoms2spyd2_err(se)); + break; } msec_sleep(500); a1logd(p->log, 1, "spyd2_reset: reset retry with ICOM err 0x%x\n",se); @@ -333,7 +342,7 @@ spyd2_readEEProm_imp( if (addr < 0 || (p->hwver < 7 && (addr + size) > 512) - || (p->hwver == 7 && (addr + size) > 1024)) + || (p->hwver >= 7 && (addr + size) > 1024)) return spyd2_interp_code((inst *)p, SPYD2_BAD_EE_ADDRESS); if (size >= 256) @@ -371,7 +380,7 @@ spyd2_readEEProm( if (addr < 0 || (p->hwver < 7 && (addr + size) > 512) - || (p->hwver == 7 && (addr + size) > 1024)) + || (p->hwver >= 7 && (addr + size) > 1024)) return spyd2_interp_code((inst *)p, SPYD2_BAD_EE_ADDRESS); while (size > 255) { /* Single read is too big */ @@ -898,7 +907,7 @@ spyd2_GetReading_ll( #endif } - /* Spyder 3/4 decoding */ + /* Spyder 3/4/5 decoding */ } else { /* Convert the raw buffer readings into 3 groups of 8 integers. */ /* At the start of each reading, the HW starts counting master */ @@ -915,7 +924,17 @@ spyd2_GetReading_ll( /* The light level is directly proportional to the frequency, */ /* hence the transitions-1 counted. */ - int map[8] = { 0,0,1,2,5,6,7,4 }; /* Map sensors into Spyder 2 order */ + int *map; + int nat[8] = { 0,1,2,3,4,5,6,7 }; /* Natural order */ + int map3[8] = { 0,0,1,2,5,6,7,4 }; /* Map Sp3 sensors into Spyder 2 order */ + int map4[8] = { 0,0,1,2,5,6,7,4 }; /* Map Sp4 sensors into Spyder 2 order */ + int map5[8] = { 1,1,0,5,2,7,6,4 }; /* Map Sp5 sensors into Spyder 2 order */ + + map = map3; + if (p->hwver == 7) + map = map4; + else if (p->hwver == 10) + map = map5; for (j = 0; j < 3; j++) { for (k = 0; k < 8; k++) { @@ -1058,7 +1077,7 @@ spyd2_SetAmbReg( return rv; } -/* Spyder3/4: Read ambient light timing */ +/* Spyder3/4/5: Read ambient light timing */ /* The byte value seems to be composed of: bits 0,1 bits 4 @@ -1101,7 +1120,7 @@ spyd2_ReadAmbTiming( } -/* Spyder3/4: Read ambient light channel 0 or 1 */ +/* Spyder3/4/5: Read ambient light channel 0 or 1 */ static inst_code spyd2_ReadAmbChan( spyd2 *p, @@ -1144,7 +1163,7 @@ spyd2_ReadAmbChan( /* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */ -/* Spyder3/4: Read temperature config */ +/* Spyder3/4/5: Read temperature config */ static inst_code spyd2_ReadTempConfig( spyd2 *p, @@ -1182,7 +1201,7 @@ spyd2_ReadTempConfig( return rv; } -/* Spyder 3/4: Write Register */ +/* Spyder 3/4/5: Write Register */ static inst_code spyd2_WriteReg( spyd2 *p, @@ -1227,7 +1246,7 @@ spyd2_WriteReg( } -/* Spyder3/4: Read Register */ +/* Spyder3/4/5: Read Register */ static inst_code spyd2_ReadRegister( spyd2 *p, @@ -1501,7 +1520,34 @@ spyd2_rdreg_7x41xshort( return inst_ok; } -/* Get refresh rate command. Set it to DEFRRATE if not detectable */ +/* Special purpose LE short read, */ +/* Read 7 x 41 vectors of Little Endian ints from the EEprom */ +static inst_code +spyd2_rdreg_7x41xleshort( + spyd2 *p, /* Object */ + double sens[7][41], /* Destination */ + int addr /* Register Address, 0 - 1023 */ +) { + inst_code ev; + unsigned char buf[7 * 41 * 2], *bp; + int i, j; + + if ((ev = spyd2_readEEProm(p, buf, addr, 7 * 41 * 2)) != inst_ok) + return ev; + + bp = buf; + for (i = 0; i < 7; i++) { + for (j = 0; j < 41; j++, bp += 2) { + int val; + val = buf2uleshort(bp); + sens[i][j] = val / 100.0; + } + } + + return inst_ok; +} + +/* Get refresh rate command. Set it to 0.0 if not detectable */ /* if no refresh rate can be established */ /* (This isn't used by the manufacturers Spyder3/4 driver, */ /* but the instrument seems to impliment it.) */ @@ -1517,6 +1563,9 @@ spyd2_read_refrate( a1logd(p->log, 3, "spyd2_read_refrate: called\n"); + if (ref_rate != NULL) + *ref_rate = 0.0; + /* Establish the frame rate detect threshold level */ clocks = (10 * CLKRATE)/DEFRRATE; @@ -1527,7 +1576,7 @@ spyd2_read_refrate( a1logd(p->log, 3, "spyd2_read_refrate: no refresh rate detectable\n"); if (ref_rate != NULL) *ref_rate = 0.0; - return inst_ok; + return inst_misread | SPYD2_NO_REFRESH_DET; } else { int frclocks; /* notional clocks per frame */ int nframes; /* Number of frames to count */ @@ -1568,6 +1617,8 @@ spyd2_GetRefRate( a1logd(p->log, 3, "Frequency calibration called\n"); if ((ev = spyd2_read_refrate((inst *)p, &p->refrate)) != inst_ok) { + p->refrate = DEFRRATE; + p->refrvalid = 0; return ev; } if (p->refrate != 0.0) { @@ -1611,7 +1662,7 @@ spyd2_GetReading( a1logd(p->log, 3, "spyd2_GetReading: called\n"); - if (p->refrmode) + if (p->refrmode != 0 && p->rrset != 0) inttime = RINTTIME; /* ie. 1 second */ else inttime = NINTTIME; /* ie. 1 second */ @@ -1650,7 +1701,7 @@ spyd2_GetReading( } a1logd(p->log, 3, "spyd2_GetReading: Using cal table %d\n",(p->icx & 1)); - if (p->hwver) + if (p->hwver >= 7) a1logd(p->log, 3, "spyd2_GetReading: using spectral cal table %d\n",p->icx >> 1); for (k = 0; k < 8; k++) /* Zero weighted average */ @@ -1737,8 +1788,9 @@ spyd2_GetReading( /* Convert sensor readings to XYZ value */ for (j = 0; j < 3; j++) { XYZ[j] = p->cal_A[p->icx & 1][j][0]; /* First entry is a constant */ - for (k = 1; k < 8; k++) + for (k = 1; k < 8; k++) { XYZ[j] += a_sensv[k] * p->cal_A[p->icx & 1][j][k+1]; + } } } @@ -1778,7 +1830,7 @@ spyd2_GetReading( return ev; } -/* Spyder3/4: Do an ambient reading */ +/* Spyder3/4/5: Do an ambient reading */ /* NOTE :- the ambient sensor is something like a TAOS TLS 2562CS. */ /* It has two sensors, one wide band and the other infra-red, */ @@ -1866,12 +1918,11 @@ spyd2_GetAmbientReading( /* Compute ambient in Lux */ amb = s0[i] * amb0 - s1[i] * amb1; -// a1logd(p->log, 4, "spyd2_GetAmbientReading: combined ambient = %f Lux\n",amb); - /* Compute the Y value */ +// a1logd(p->log, 4, "spyd2_GetAmbientReading: combined ambient = %f cd/^m\n",amb); -// XYZ[1] = amb; /* cd/m^2 ??? - not very accurate, due to */ - XYZ[1] = 3.141592654 * amb; /* Lux ??? - not very accurate, due to */ - /* spectral response and/or integration angle. */ + /* Compute the Y value */ + XYZ[1] = amb; /* cd/m^2 ??? - not very accurate, due to */ + /* spectral response and/or integration angle ? */ XYZ[0] = icmD50.X * XYZ[1]; /* Convert to D50 neutral */ XYZ[2] = icmD50.Z * XYZ[1]; @@ -1881,8 +1932,10 @@ spyd2_GetAmbientReading( } /* ------------------------------------------------------------ */ -/* Spyder 4 manufacturer calibration data */ +/* Spyder 4/5 manufacturer calibration data */ int spyd4_nocals = 0; /* Number of calibrations */ + /* 6 for Spyder 4 */ + /* 7 for Spyder 5 */ xspect *spyd4_cals = NULL; /* [nocals] Device spectrum */ /* ------------------------------------------------------------ */ @@ -1989,7 +2042,7 @@ spyd4_set_cal_ix( } #endif /* PLOT_SPECTRA */ -#ifdef SAVE_XYZSPECTRA /* Save the default XYZ senitivity spectra to "sensorsxyz.sp" */ +#ifdef SAVE_XYZSPECTRA /* Save the default XYZ senitivity spectra to "sensorsxyz.cmf" */ { int i, j, k; xspect xyz[3]; @@ -2008,14 +2061,14 @@ spyd4_set_cal_ix( xyz[j].spec[i] *= 1.4; /* Align with std XYZ */ } } - write_nxspect("sensorsxyz.sp", xyz, 3, 0); + write_nxspect("sensorsxyz.cmf", xyz, 3, 0); } #endif #ifdef SAVE_STDXYZ { xspect xyz[3]; standardObserver(&xyz[0], &xyz[1], &xyz[2],icxOT_CIE_1931_2); - write_nxspect("stdobsxyz.sp", xyz, 3, 0); + write_nxspect("stdobsxyz.cmf", xyz, 3, 0); } #endif /* SAVE_STDXYZ */ @@ -2275,15 +2328,16 @@ spyd2_set_speccal( /* Preset the calibration to a matrix. The spectral type is set to none */ static inst_code spyd2_set_matcal(spyd2 *p, double mtx[3][3]) { - if (mtx == NULL) { + + if (p->samples != NULL) + free(p->samples); + p->samples = NULL; + p->nsamp = 0; + + if (mtx == NULL) icmSetUnity3x3(p->ccmat); - } else { - if (p->cbid == 0) { - a1loge(p->log, 1, "spyd2: can't set col_cor_mat over non-base display type\n"); - return inst_wrong_setup; - } + else icmCpy3x3(p->ccmat, mtx); - } return inst_ok; } @@ -2328,12 +2382,14 @@ spyd2_set_cal(spyd2 *p) { p->cal_A[1][0][2+i], p->cal_A[1][1][2+i], p->cal_A[1][2][2+i]); } } + a1logd(p->log,4,"\n"); a1logd(p->log,4,"ccmat = %f %f %f\n", p->ccmat[0][0], p->ccmat[0][1], p->ccmat[0][2]); a1logd(p->log,4," %f %f %f\n", p->ccmat[1][0], p->ccmat[1][1], p->ccmat[1][2]); a1logd(p->log,4," %f %f %f\n\n", p->ccmat[2][0], p->ccmat[2][1], p->ccmat[2][2]); + a1logd(p->log,4,"ucbid = %d, cbid = %d\n",p->ucbid, p->cbid); a1logd(p->log,4,"\n"); } @@ -2351,6 +2407,20 @@ spyd2_read_all_regs( a1logd(p->log, 3, "spyd2_read_all_regs: about to read all the EEProm values\n"); + if (p->log->debug >= 8) { + unsigned char buf[1024]; + int len = 512; + + if (p->hwver == 7 + || p->hwver == 10) + len = 1024; + + if ((ev = spyd2_readEEProm(p, buf, 0, len)) != inst_ok) + return ev; + a1logd(p->log, 8, "EEPROM:\n"); + adump_bytes(p->log, " ", buf, 0, len); + } + /* HW version */ if ((ev = spyd2_rd_ee_uchar(p, &p->hwver, 5)) != inst_ok) return ev; @@ -2359,12 +2429,16 @@ spyd2_read_all_regs( if ((ev = spyd2_rd_ee_uchar(p, &p->fbits, 6)) != inst_ok) return ev; - a1logd(p->log, 3, "spyd2_read_all_regs: hwver = 0x%02x%02x\n",p->hwver,p->fbits); + a1logd(p->log, 3, "spyd2_read_all_regs: hwver+fbits = 0x%02x%02x\n",p->hwver,p->fbits); /* Check the EEProm checksum */ - if (p->hwver == 7) { - if ((ev = spyd2_checkEECRC(p)) != inst_ok) - return ev; + if (p->hwver == 7 + || p->hwver == 10) { + if ((ev = spyd2_checkEECRC(p)) != inst_ok) { + a1logd(p->log, 3, "spyd2_read_all_regs: checksum failed\n"); + return ev; + } + a1logd(p->log, 6, "spyd2_read_all_regs: checksum OK\n"); } /* Serial number */ @@ -2470,14 +2544,20 @@ spyd2_read_all_regs( a1logd(p->log, 4, "\n"); } - } else if (p->hwver == 7) { + } else if (p->hwver == 7 + || p->hwver == 10) { int i, j; unsigned int sscal; double tsens[7][41]; /* Read sensor sensitivity spectral data */ - if ((ev = spyd2_rdreg_7x41xshort(p, tsens, 170)) != inst_ok) - return ev; + if (p->hwver == 7) { /* Spyder 4 */ + if ((ev = spyd2_rdreg_7x41xshort(p, tsens, 0xAA)) != inst_ok) + return ev; + } else { /* Spyder 5 */ + if ((ev = spyd2_rdreg_7x41xleshort(p, tsens, 0x12C)) != inst_ok) + return ev; + } /* Sensor scale factor */ if ((ev = spyd2_rd_ee_ushort(p, &sscal, 21)) != inst_ok) @@ -2502,7 +2582,7 @@ spyd2_read_all_regs( } } #ifdef SAVE_SPECTRA - write_nxspect("sensors.sp", p->sens, 7, 0); + write_nxspect("sensors.cmf", p->sens, 7, 0); #endif /* Linearization */ @@ -2531,7 +2611,6 @@ spyd2_read_all_regs( printf("The sensor and ambient sensor sensitivy curves\n"); do_plot10(xx, yp[0], yp[1], yp[2], yp[3], yp[4], yp[5], yp[6], yp[7], yp[8], yp[9], 81, 0); - for (j = 0; j < spyd4_nocals; j++) { double max = 0; for (i = 0; i < 81; i++) { @@ -2545,7 +2624,7 @@ spyd2_read_all_regs( for (; j < 10; j++) yp[j] = NULL; - printf("The display spectra\n"); + printf("The %d display spectra\n",spyd4_nocals); do_plot10(xx, yp[0], yp[1], yp[2], yp[3], yp[4], yp[5], yp[6], yp[7], yp[8], yp[9], 81, 0); } #endif /* PLOT_SPECTRA */ @@ -2559,10 +2638,10 @@ spyd2_read_all_regs( /* ------------------------------------------------------------ */ -/* Table to hold Spyder 2 Firmware, if it's installed */ -unsigned int _spyder2_pld_size = 0; /* Number of bytes to download */ -unsigned int *spyder2_pld_size = &_spyder2_pld_size; -unsigned char *spyder2_pld_bytes = NULL; +/* Spyder 1/2 Colorimeter Xilinx XCS05XL firmware pattern */ +unsigned int spyder_pld_xsize[2] = { 6817, 6817 }; /* Expected size */ +unsigned int spyder_pld_size[2] = { 0, 0 }; /* Number of bytes to download */ +unsigned char *spyder_pld_bytes[2] = { NULL, NULL }; /* Bytes to download */ /* Spyder 2: Download the PLD if it is available, and check status */ static inst_code @@ -2572,16 +2651,25 @@ spyd2_download_pld( inst_code ev; int stat; int i; + int id; + + if (p->itype == instSpyder1) + id = 0; + else + id = 1; a1logd(p->log, 2, "spyd2_download_pld: called\n"); - if (*spyder2_pld_size == 0 || *spyder2_pld_size == 0x11223344) { + if (spyder_pld_size[id] == 0) /* Try and read PLD pattern */ + setup_spyd2(id); + + if (spyder_pld_size[id] == 0) { a1logd(p->log, 1, "spyd2_download_pld: No PLD pattern available! (have you run oeminst ?)\n"); return spyd2_interp_code((inst *)p, SPYD2_NO_PLD_PATTERN) ; } - for (i = 0; i < *spyder2_pld_size; i += 8) { - if ((ev = spyd2_loadPLD(p, spyder2_pld_bytes + i, 8)) != inst_ok) + for (i = 0; i < spyder_pld_size[id]; i += 8) { + if ((ev = spyd2_loadPLD(p, spyder_pld_bytes[id] + i, 8)) != inst_ok) return ev; } @@ -2667,7 +2755,8 @@ spyd4_load_cal(spyd2 *p) { } nocals = size/(41 * 8); - if (nocals != 6) { + if (nocals != 6 + && nocals != 7) { fclose(fp); a1logd(p->log, 1, "spyd4_load_cal: calibration file '%s' is unexpected number of calibrations (%d)\n",bin_paths[0],nocals); break; @@ -2778,7 +2867,8 @@ spyd2_init_coms(inst *pp, baud_rate br, flow_control fc, double tout) { /* On OS X the Spyder 2 can't close properly */ #if defined(__APPLE__) /* OS X*/ - if (p->itype == instSpyder2) { + if (p->itype == instSpyder1 + || p->itype == instSpyder2) { usbflags |= icomuf_reset_before_close; /* The spyder 2 USB is buggy ? */ } #endif @@ -2787,7 +2877,8 @@ spyd2_init_coms(inst *pp, baud_rate br, flow_control fc, double tout) { #if defined(UNIX_X11) /* Linux*/ /* On Linux the Spyder 2 doesn't work reliably unless each */ /* read is preceeded by a reset endpoint. */ - if (p->itype == instSpyder2) { + if (p->itype == instSpyder1 + || p->itype == instSpyder2) { usbflags |= icomuf_resetep_before_read; /* The spyder USB is buggy ? */ } #endif @@ -2822,9 +2913,11 @@ spyd2_init_inst(inst *pp) { if (p->gotcoms == 0) /* Must establish coms before calling init */ return spyd2_interp_code((inst *)p, SPYD2_NO_COMS); - if (p->itype != instSpyder2 + if (p->itype != instSpyder1 + && p->itype != instSpyder2 && p->itype != instSpyder3 - && p->itype != instSpyder4) + && p->itype != instSpyder4 + && p->itype != instSpyder5) return spyd2_interp_code((inst *)p, SPYD2_UNKNOWN_MODEL); p->refrate = DEFRRATE; @@ -2834,7 +2927,8 @@ spyd2_init_inst(inst *pp) { /* For Spyder 1 & 2, reset the hardware and wait for it to become ready. */ if (p->itype != instSpyder3 - && p->itype != instSpyder4) { + && p->itype != instSpyder4 + && p->itype != instSpyder5) { /* Reset the instrument */ if ((ev = spyd2_reset(p)) != inst_ok) @@ -2852,7 +2946,7 @@ spyd2_init_inst(inst *pp) { return spyd2_interp_code((inst *)p, SPYD2_BADSTATUS); } else { - /* Because the Spyder 3/4 doesn't have a reset command, */ + /* Because the Spyder 3/4/5 doesn't have a reset command, */ /* it may be left in a borked state if the driver is aborted. */ /* Make sure there's no old read data hanging around. */ /* Sometimes it takes a little while for the old data to */ @@ -2974,24 +3068,34 @@ instClamping clamp) { /* NZ if clamp XYZ/Lab to be +ve */ } if (IMODETST(p->mode, inst_mode_emis_ambient)) { - if ((ev = spyd2_GetAmbientReading(p, val->XYZ)) != inst_ok) - return ev; + ev = spyd2_GetAmbientReading(p, val->XYZ); } else { + ev = inst_ok; /* Attempt a CRT frame rate calibration if needed */ - if (p->refrmode != 0 && p->rrset == 0) { - if ((ev = spyd2_GetRefRate(p)) != inst_ok) - return ev; + if (p->refrmode != 0 && p->rrset == 0) + ev = spyd2_GetRefRate(p); + + if (ev != inst_ok) { + warning("Spyder: measuring refresh rate failed"); + ev = inst_ok; } - /* Read the XYZ value */ - if ((ev = spyd2_GetReading(p, val->XYZ)) != inst_ok) - return ev; + if (ev == inst_ok) { + /* Read the XYZ value */ + if ((ev = spyd2_GetReading(p, val->XYZ)) == inst_ok) { - /* Apply the colorimeter correction matrix */ - icmMulBy3x3(val->XYZ, p->ccmat, val->XYZ); + /* Apply the colorimeter correction matrix */ + icmMulBy3x3(val->XYZ, p->ccmat, val->XYZ); + } + } } + + if (ev != inst_ok) + return ev; + + /* This may not change anything since instrument may clamp */ if (clamp) icmClamp3(val->XYZ, val->XYZ); @@ -3011,11 +3115,31 @@ instClamping clamp) { /* NZ if clamp XYZ/Lab to be +ve */ return ev; } +/* Make a possible change of the refresh mode */ +static void update_refmode(spyd2 *p, int refrmode) { + + if ( IMODETST(p->mode, inst_mode_emis_norefresh_ovd)) { /* Must test this first! */ + refrmode = 0; + } else if (IMODETST(p->mode, inst_mode_emis_refresh_ovd)) { + refrmode = 1; + } + + if (p->refrmode != refrmode) { + p->rrset = 0; /* This is a hint we may have swapped displays */ + p->refrvalid = 0; + } + p->refrmode = refrmode; +} + +static inst_code set_base_disp_type(spyd2 *p, int cbid); + /* Insert a colorimetric correction matrix in the instrument XYZ readings */ /* This is only valid for colorimetric instruments. */ /* To remove the matrix, pass NULL for the filter filename */ inst_code spyd2_col_cor_mat( inst *pp, +disptech dtech, /* Use disptech_unknown if not known */ \ +int cbid, /* Calibration display type base ID, 1 if unknown */\ double mtx[3][3] ) { spyd2 *p = (spyd2 *)pp; @@ -3026,6 +3150,13 @@ double mtx[3][3] if (!p->inited) return inst_no_init; + if ((ev = set_base_disp_type(p, cbid)) != inst_ok) + return ev; + + p->dtech = dtech; + update_refmode(p, disptech_get_id(dtech)->refr); + p->cbid = 0; + if ((ev = spyd2_set_matcal(p, mtx)) != inst_ok) return ev; @@ -3038,6 +3169,7 @@ double mtx[3][3] /* To set calibration back to default, pass NULL for sets. */ inst_code spyd2_col_cal_spec_set( inst *pp, +disptech dtech, xspect *sets, int no_sets ) { @@ -3051,6 +3183,8 @@ int no_sets if (p->hwver < 7) return inst_unsupported; + p->dtech = dtech; + if (sets == NULL || no_sets <= 0) { if ((ev = set_default_disp_type(p)) != inst_ok) return ev; @@ -3058,8 +3192,10 @@ int no_sets if ((ev = spyd2_set_speccal(p, sets, no_sets)) != inst_ok) return ev; + p->ucbid = 0; /* We're using external samples */ ev = spyd2_set_cal(p); } + update_refmode(p, disptech_get_id(dtech)->refr); return ev; } @@ -3093,7 +3229,7 @@ static inst_code spyd2_get_n_a_cals(inst *pp, inst_cal_type *pn_cals, inst_cal_t /* returning inst_needs_cal. Initially us an inst_cal_cond of inst_calc_none, */ /* and then be prepared to setup the right conditions, or ask the */ /* user to do so, each time the error inst_cal_setup is returned. */ -inst_code spyd2_calibrate( +static inst_code spyd2_calibrate( inst *pp, inst_cal_type *calt, /* Calibration type to do/remaining */ inst_cal_cond *calc, /* Current condition/desired condition */ @@ -3153,11 +3289,12 @@ double *ref_rate ) { spyd2 *p = (spyd2 *)pp; if (p->refrvalid) { + *ref_rate = p->refrate; return inst_ok; } else if (p->rrset) { *ref_rate = 0.0; - return inst_misread; + return inst_misread | SPYD2_NO_REFRESH_DET; } return inst_needs_cal; } @@ -3194,7 +3331,7 @@ spyd2_interp_error(inst *pp, int ec) { case SPYD2_COMS_FAIL: return "Communications failure"; case SPYD2_UNKNOWN_MODEL: - return "Not a Spyder 2 or 3"; + return "Not a Spyder 2, 3, 4 or 5"; case SPYD2_DATA_PARSE_ERROR: return "Data from i1 Display didn't parse as expected"; @@ -3245,6 +3382,10 @@ spyd2_interp_error(inst *pp, int ec) { case SPYD2_DISP_SEL_RANGE: return "Display device selection out of range"; + /* User error */ + case SPYD2_NO_REFRESH_DET: + return "Unable to detect & measure refresh rate"; + default: return "Unknown error code"; } @@ -3296,6 +3437,9 @@ spyd2_interp_code(inst *pp, int ec) { case SPYD2_DISP_SEL_RANGE: return inst_wrong_setup | ec; + case SPYD2_NO_REFRESH_DET: + return inst_misread | ec; + } return inst_other_error | ec; } @@ -3313,7 +3457,7 @@ spyd2_del(inst *pp) { } /* Return the instrument mode capabilities */ -void spyd2_capabilities(inst *pp, +static void spyd2_capabilities(inst *pp, inst_mode *pcap1, inst2_capability *pcap2, inst3_capability *pcap3) { @@ -3331,7 +3475,8 @@ inst3_capability *pcap3) { /* of ambinent capability, short of doing a read */ /* and noticing the result is zero. */ if (p->itype == instSpyder3 - || p->itype == instSpyder4) { + || p->itype == instSpyder4 + || p->itype == instSpyder5) { cap1 |= inst_mode_emis_ambient; } @@ -3344,7 +3489,8 @@ inst3_capability *pcap3) { ; if (p->itype == instSpyder3 - || p->itype == instSpyder4) { + || p->itype == instSpyder4 + || p->itype == instSpyder5) { cap2 |= inst2_disptype; cap2 |= inst2_has_leds; cap2 |= inst2_ambient_mono; @@ -3352,8 +3498,9 @@ inst3_capability *pcap3) { cap2 |= inst2_disptype; } - if (p->itype == instSpyder4) - cap2 |= inst2_ccss; /* Spyder4 has spectral sensiivities */ + if (p->itype == instSpyder4 + || p->itype == instSpyder5) + cap2 |= inst2_ccss; /* Spyder4 & 5 has spectral sensivities */ if (pcap1 != NULL) *pcap1 = cap1; @@ -3364,7 +3511,7 @@ inst3_capability *pcap3) { } /* Check device measurement mode */ -inst_code spyd2_check_mode(inst *pp, inst_mode m) { +static inst_code spyd2_check_mode(inst *pp, inst_mode m) { spyd2 *p = (spyd2 *)pp; inst_mode cap; @@ -3388,7 +3535,7 @@ inst_code spyd2_check_mode(inst *pp, inst_mode m) { } /* Set device measurement mode */ -inst_code spyd2_set_mode(inst *pp, inst_mode m) { +static inst_code spyd2_set_mode(inst *pp, inst_mode m) { spyd2 *p = (spyd2 *)pp; inst_code ev; @@ -3397,21 +3544,20 @@ inst_code spyd2_set_mode(inst *pp, inst_mode m) { p->mode = m; - if ( IMODETST(p->mode, inst_mode_emis_norefresh_ovd)) /* Must test this first! */ - p->refrmode = 0; - else if (IMODETST(p->mode, inst_mode_emis_refresh_ovd)) - p->refrmode = 1; + /* Effective refresh mode may change */ + update_refmode(p, p->refrmode); return inst_ok; } -inst_disptypesel spyd2_disptypesel[3] = { +static inst_disptypesel spyd2_disptypesel[3] = { { inst_dtflags_default, 1, "l", "LCD display", 0, + disptech_lcd, 1 }, { @@ -3420,6 +3566,7 @@ inst_disptypesel spyd2_disptypesel[3] = { "c", /* sel */ "CRT display", /* desc */ 1, /* refr */ + disptech_crt, /* disptype */ 0 /* ix */ }, { @@ -3428,17 +3575,19 @@ inst_disptypesel spyd2_disptypesel[3] = { "", "", 0, + disptech_none, 0 } }; -inst_disptypesel spyd3_disptypesel[3] = { +static inst_disptypesel spyd3_disptypesel[3] = { { inst_dtflags_default, 1, "nl", "Non-Refresh display", 0, + disptech_lcd, 1 }, { @@ -3447,6 +3596,7 @@ inst_disptypesel spyd3_disptypesel[3] = { "rc", /* sel */ "Refresh display", /* desc */ 1, /* refr */ + disptech_crt, /* disptype */ 1 /* ix */ }, { @@ -3455,17 +3605,19 @@ inst_disptypesel spyd3_disptypesel[3] = { "", "", 0, + disptech_unknown, 0 } }; -inst_disptypesel spyd4_disptypesel_1[8] = { +static inst_disptypesel spyd4_disptypesel_1[8] = { { inst_dtflags_default, 1, "nl", "Generic Non-Refresh Display", 0, + disptech_lcd, 1 }, { @@ -3474,6 +3626,7 @@ inst_disptypesel spyd4_disptypesel_1[8] = { "rc", /* sel */ "Generic Refresh Display", /* desc */ 1, /* refr */ + disptech_crt, /* disptype */ 1 /* ix */ }, { @@ -3482,17 +3635,19 @@ inst_disptypesel spyd4_disptypesel_1[8] = { "", "", 0, + disptech_none, 0 } }; -inst_disptypesel spyd4_disptypesel[8] = { +static inst_disptypesel spyd4_disptypesel[8] = { { inst_dtflags_default, 1, "nl", "Generic Non-Refresh Display", 0, + disptech_lcd, 1 }, { @@ -3501,6 +3656,7 @@ inst_disptypesel spyd4_disptypesel[8] = { "rc", /* sel */ "Generic Refresh Display", /* desc */ 1, /* refr */ + disptech_crt, /* disptype */ 1 /* ix = hw bit + spec table << 1 */ }, { @@ -3508,6 +3664,7 @@ inst_disptypesel spyd4_disptypesel[8] = { 0, "f", "LCD, CCFL Backlight", + disptech_lcd_ccfl, 0, (1 << 1) | 1 }, @@ -3517,6 +3674,7 @@ inst_disptypesel spyd4_disptypesel[8] = { "L", "Wide Gamut LCD, CCFL Backlight", 0, + disptech_lcd_ccfl_wg, (2 << 1) | 1 }, { @@ -3524,6 +3682,7 @@ inst_disptypesel spyd4_disptypesel[8] = { 0, "e", "LCD, White LED Backlight", + disptech_lcd_wled, 0, (3 << 1) | 1 }, @@ -3533,6 +3692,7 @@ inst_disptypesel spyd4_disptypesel[8] = { "B", "Wide Gamut LCD, RGB LED Backlight", 0, + disptech_lcd_rgbled, (4 << 1) | 1 }, { @@ -3541,6 +3701,7 @@ inst_disptypesel spyd4_disptypesel[8] = { "x", "LCD, CCFL Backlight (Laptop ?)", 0, + disptech_lcd_ccfl, (5 << 1) | 1 }, { @@ -3549,16 +3710,95 @@ inst_disptypesel spyd4_disptypesel[8] = { "", "", 0, + disptech_none, + 0 + } +}; + +static inst_disptypesel spyd5_disptypesel[8] = { + { + inst_dtflags_default, + 1, + "nl", + "Generic Non-Refresh Display", + 0, + disptech_lcd, + 1 + }, + { + inst_dtflags_none, /* flags */ + 2, /* cbid */ + "rc", /* sel */ + "Generic Refresh Display", /* desc */ + 1, /* refr */ + disptech_crt, /* disptype */ + 1 /* ix = hw bit + spec table << 1 */ + }, + { + inst_dtflags_none, /* flags */ + 0, + "f", + "LCD, CCFL Backlight", + disptech_lcd_ccfl, + 0, + (1 << 1) | 1 + }, + { + inst_dtflags_none, /* flags */ + 0, + "L", + "Wide Gamut LCD, CCFL Backlight", + 0, + disptech_lcd_ccfl_wg, + (2 << 1) | 1 + }, + { + inst_dtflags_none, /* flags */ + 0, + "e", + "LCD, White LED Backlight", + disptech_lcd_wled, + 0, + (3 << 1) | 1 + }, + { + inst_dtflags_none, /* flags */ + 0, + "B", + "Wide Gamut LCD, RGB LED Backlight", + 0, + disptech_lcd_rgbled, + (4 << 1) | 1 + }, + { + inst_dtflags_none, /* flags */ + 0, + "x", + "LCD, CCFL Backlight (Laptop ?)", + 0, + disptech_lcd_ccfl, + (5 << 1) | 1 + }, + { + inst_dtflags_end, + 0, + "", + "", + 0, + disptech_none, 0 } }; static void set_base_disptype_list(spyd2 *p) { /* set the base display type list */ - if (p->itype == instSpyder4) { + if (p->itype == instSpyder4 + || p->itype == instSpyder5) { if (spyd4_nocals <= 1) { p->_dtlist = spyd4_disptypesel_1; - } else { + } else { /* spyd4_nocals == 6 or 7, Spyder 4 or 5. */ + /* Spyder 5 has exactly the same list as the Spyder 4, with an extra */ + /* entry at the end that is the same as the first (flat spectrum). */ p->_dtlist = spyd4_disptypesel; } } else if (p->itype == instSpyder3) { @@ -3601,40 +3841,65 @@ static inst_code set_disp_type(spyd2 *p, inst_disptypesel *dentry) { int refrmode; p->icx = dentry->ix; + p->dtech = dentry->dtech; p->cbid = dentry->cbid; - refrmode = dentry->refr; - if ( IMODETST(p->mode, inst_mode_emis_norefresh_ovd)) { /* Must test this first! */ - refrmode = 0; - } else if (IMODETST(p->mode, inst_mode_emis_refresh_ovd)) { - refrmode = 1; - } - - if (p->refrmode != refrmode) { - p->rrset = 0; /* This is a hint we may have swapped displays */ - p->refrvalid = 0; - } - p->refrmode = refrmode; + update_refmode(p, dentry->refr); if (dentry->flags & inst_dtflags_ccss) { /* Spectral sample */ if ((ev = spyd2_set_speccal(p, dentry->sets, dentry->no_sets)) != inst_ok) return ev; + p->ucbid = dentry->cbid; /* This is underying base if dentry is base selection */ } else { /* Matrix */ if (dentry->flags & inst_dtflags_ccmx) { + if ((ev = set_base_disp_type(p, dentry->cc_cbid)) != inst_ok) + return ev; if ((ev = spyd2_set_matcal(p, dentry->mat)) != inst_ok) return ev; + p->cbid = 0; /* Matrix is an override of cbid */ + } else { if ((ev = spyd2_set_matcal(p, NULL)) != inst_ok) /* Noop */ return ev; + p->ucbid = dentry->cbid; /* This is underying base if dentry is base selection */ } } return spyd2_set_cal(p); } +/* Set the display type */ +static inst_code spyd2_set_disptype(inst *pp, int ix) { + spyd2 *p = (spyd2 *)pp; + inst_code ev; + inst_disptypesel *dentry; + + if (!p->gotcoms) + return inst_no_coms; + if (!p->inited) + return inst_no_init; + + if (p->dtlist == NULL) { + if ((ev = inst_creat_disptype_list(pp, &p->ndtlist, &p->dtlist, + p->_dtlist, p->hwver >= 7 ? 1 : 0 /* doccss*/, 1 /* doccmx */)) != inst_ok) + return ev; + } + + if (ix < 0 || ix >= p->ndtlist) + return inst_unsupported; + + dentry = &p->dtlist[ix]; + + if ((ev = set_disp_type(p, dentry)) != inst_ok) { + return ev; + } + + return inst_ok; +} + /* Setup the default display type */ static inst_code set_default_disp_type(spyd2 *p) { inst_code ev; @@ -3661,35 +3926,56 @@ static inst_code set_default_disp_type(spyd2 *p) { return inst_ok; } -/* Set the display type */ -static inst_code spyd2_set_disptype(inst *pp, int ix) { - spyd2 *p = (spyd2 *)pp; +/* Setup the display type to the given base type */ +static inst_code set_base_disp_type(spyd2 *p, int cbid) { inst_code ev; - inst_disptypesel *dentry; - - if (!p->gotcoms) - return inst_no_coms; - if (!p->inited) - return inst_no_init; + int i; + if (cbid == 0) { + a1loge(p->log, 1, "spyd2 set_base_disp_type: can't set base display type of 0\n"); + return inst_wrong_setup; + } if (p->dtlist == NULL) { - if ((ev = inst_creat_disptype_list(pp, &p->ndtlist, &p->dtlist, + if ((ev = inst_creat_disptype_list((inst *)p, &p->ndtlist, &p->dtlist, p->_dtlist, p->hwver >= 7 ? 1 : 0 /* doccss*/, 1 /* doccmx */)) != inst_ok) return ev; } - if (ix < 0 || ix >= p->ndtlist) - return inst_unsupported; - - dentry = &p->dtlist[ix]; - - if ((ev = set_disp_type(p, dentry)) != inst_ok) { + for (i = 0; !(p->dtlist[i].flags & inst_dtflags_end); i++) { + if (!(p->dtlist[i].flags & inst_dtflags_ccmx) /* Prevent infinite recursion */ + && p->dtlist[i].cbid == cbid) + break; + } + if (p->dtlist[i].flags & inst_dtflags_end) { + a1loge(p->log, 1, "set_base_disp_type: failed to find cbid %d!\n",cbid); + return inst_wrong_setup; + } + if ((ev = set_disp_type(p, &p->dtlist[i])) != inst_ok) { return ev; } return inst_ok; } +/* Get the disptech and other corresponding info for the current */ +/* selected display type. Returns disptype_unknown by default. */ +/* Because refrmode can be overridden, it may not match the refrmode */ +/* of the dtech. (Pointers may be NULL if not needed) */ +static inst_code spyd2_get_disptechi( +inst *pp, +disptech *dtech, +int *refrmode, +int *cbid) { + spyd2 *p = (spyd2 *)pp; + if (dtech != NULL) + *dtech = p->dtech; + if (refrmode != NULL) + *refrmode = p->refrmode; + if (cbid != NULL) + *cbid = p->cbid; + return inst_ok; +} + /* * set or reset an optional mode * @@ -3715,24 +4001,6 @@ spyd2_get_set_opt(inst *pp, inst_opt_type m, ...) { if (!p->inited) return inst_no_init; - /* Get the display type information */ - if (m == inst_opt_get_dtinfo) { - va_list args; - int *refrmode, *cbid; - - va_start(args, m); - refrmode = va_arg(args, int *); - cbid = va_arg(args, int *); - va_end(args); - - if (refrmode != NULL) - *refrmode = p->refrmode; - if (cbid != NULL) - *cbid = p->cbid; - - return inst_ok; - } - /* Set the ccss observer type */ if (m == inst_opt_set_ccss_obs) { va_list args; @@ -3860,6 +4128,7 @@ extern spyd2 *new_spyd2(icoms *icom, instType itype) { p->set_mode = spyd2_set_mode; p->get_disptypesel = spyd2_get_disptypesel; p->set_disptype = spyd2_set_disptype; + p->get_disptechi = spyd2_get_disptechi; p->get_set_opt = spyd2_get_set_opt; p->read_sample = spyd2_read_sample; p->read_refrate = spyd2_read_refrate; @@ -3876,7 +4145,8 @@ extern spyd2 *new_spyd2(icoms *icom, instType itype) { p->itype = icom->itype; /* Load manufacturers Spyder4 calibrations */ - if (itype == instSpyder4) { + if (itype == instSpyder4 + || itype == instSpyder5) { int rv; p->hwver = 7; /* Set preliminary version */ if ((rv = spyd4_load_cal(p)) != SPYD2_OK) @@ -3887,13 +4157,105 @@ extern spyd2 *new_spyd2(icoms *icom, instType itype) { if (itype == instSpyder3) { p->hwver = 4; /* Set preliminary version */ } - if (itype == instSpyder2) { + if (itype == instSpyder1 // ???? + || itype == instSpyder2) { p->hwver = 3; /* Set preliminary version */ } icmSetUnity3x3(p->ccmat); /* Set the colorimeter correction matrix to do nothing */ set_base_disptype_list(p); + p->dtech = disptech_unknown; return p; } + +/* This is called by utilities that need to be able to access the Spyder 2 colorimeter. */ +/* and be able to check if the firmware is available. */ + +/* id = 0 for Spyder 1, 1 for Spyder 2 */ +/* Return 0 if Spyder firmware is not available */ +/* Return 1 if Spyder firmware is available */ +int setup_spyd2(int id) { +#ifdef ENABLE_USB + char **bin_paths = NULL; + int no_paths = 0; + unsigned int size, rsize; + char *p1; + FILE *fp; + int i; + + id &= 1; + + /* If not loaded, try and load it */ + if (spyder_pld_size[id] == 0) { + + + for (;;) { /* So we can break out */ + if (id == 0) + p1 = "ArgyllCMS/spyd1PLD.bin" XDG_FUDGE "color/spyd1PLD.bin"; + else + p1 = "ArgyllCMS/spyd2PLD.bin" XDG_FUDGE "color/spyd2PLD.bin"; + + if ((no_paths = xdg_bds(NULL, &bin_paths, xdg_data, xdg_read, xdg_user, p1)) < 1) { + a1logd(g_log, 1, "setup_spyd2: failed to find PLD file on path '%s'\n",p1); + break; + } + + /* open binary file */ +#if !defined(O_CREAT) && !defined(_O_CREAT) +# error "Need to #include fcntl.h!" +#endif +#if defined(O_BINARY) || defined(_O_BINARY) + if ((fp = fopen(bin_paths[0],"rb")) == NULL) +#else + if ((fp = fopen(bin_paths[0],"r")) == NULL) +#endif + { + a1logd(g_log, 1, "setup_spyd2: couldn't find '%s'\n",bin_paths[0]); + break; + } + + /* Figure out how file it is */ + if (fseek(fp, 0, SEEK_END)) { + fclose(fp); + break; + } + size = (unsigned long)ftell(fp); + rsize = (size + 7) & ~7; /* Rounded up size */ + + if ((spyder_pld_bytes[id] = malloc(rsize)) == NULL) { + a1logd(g_log,1,"Spyder pld load malloc failed\n"); + fclose(fp); + break; + } + + if (fseek(fp, 0, SEEK_SET)) { + fclose(fp); + break; + } + + if (fread(spyder_pld_bytes[id], 1, size, fp) != size) { + fclose(fp); + break; + } + + /* Pad out to even 8 bytes */ + for (i = size; i < rsize; i++) + spyder_pld_bytes[id][i] = 0xff; + + spyder_pld_size[id] = rsize; + + a1logd(g_log, 1, "setup_spyd2: loaded '%s' OK\n",bin_paths[0]); + + fclose(fp); + break; + } + xdg_free(bin_paths, no_paths); + } + + if (spyder_pld_size[id] != 0) + return 1; /* Available */ +#endif /* ENABLE_USB */ + return 0; /* Not available */ +} diff --git a/spectro/spyd2.h b/spectro/spyd2.h index 2c34d88..923234f 100644 --- a/spectro/spyd2.h +++ b/spectro/spyd2.h @@ -74,6 +74,9 @@ /* Configuration */ #define SPYD2_DISP_SEL_RANGE 0x40 /* Calibration selection is out of range */ +/* User errors */ +#define SPYD2_NO_REFRESH_DET 0x50 /* Calibration selection is out of range */ + /* SPYD2/3 communication object */ struct _spyd2 { INST_OBJ_BASE @@ -94,6 +97,7 @@ struct _spyd2 { /* Spyder2 = 3 */ /* Spyder3 = 4 */ /* Spyder4 = 7 */ + /* Spyder5 = 10 */ unsigned int fbits; /* 6:B Feature bits 0,1,2,3 correspond to calibration types */ /* CRT/UNK, LCD/NORM, TOK, CRT/UNK */ @@ -131,7 +135,7 @@ struct _spyd2 { /* This might be Y only weightings for the 7 sensor values, */ /* with no offset value (TOK type ?). */ - /* hwver 7 (Spyder 4) uses computed calibrations */ + /* hwver 7 & 10 (Spyder 4/5) uses computed calibrations */ xspect sens[7]; /* Sensor sensitivity curves in Hz per mW/nm/m^2 */ /* Computed factors and state */ @@ -140,9 +144,11 @@ struct _spyd2 { int ndtlist; /* Number of valid dtlist entries */ int refrmode; /* 0 for constant, 1 for refresh display */ - int cbid; /* calibration base ID, 0 if not a base */ + int cbid; /* current calibration base ID, 0 if not a base */ + int ucbid; /* Underlying base ID if being used for matrix, 0 othewise */ int icx; /* Bit 0: Cal table index, 0 = CRT, 1 = LCD/normal */ /* Bits 31-1: Spyder 4 spectral cal index, 0..spyd4_nocals-1 */ + disptech dtech; /* Display technology enum */ int rrset; /* Flag, nz if the refresh rate has been determined */ double refrate; /* Current refresh rate. Set to DEFREFR if not measurable */ int refrvalid; /* nz if refrate was measured */ @@ -165,6 +171,11 @@ struct _spyd2 { /* Constructor */ extern spyd2 *new_spyd2(icoms *icom, instType itype); +/* PLD pattern loader */ +/* id = 0 for Spyder 1, 1 for Spyder 2 */ +/* Return 0 if Spyder firmware is not available */ +/* Return 1 if Spyder firmware is available */ +extern int setup_spyd2(int id); #define SPYD2_H #endif /* SPYD2_H */ diff --git a/spectro/spyd2PLD.h b/spectro/spyd2PLD.h deleted file mode 100644 index 19d2a48..0000000 --- a/spectro/spyd2PLD.h +++ /dev/null @@ -1,10 +0,0 @@ - -/* Spyder 2 Colorimeter Xilinx XCS05XL firmware pattern */ -/* needs to be transfered here for the instrument to work. */ - -/* The end user should see the oeminst utility.*/ - -static unsigned int pld_size = 0x11223344; /* Endian indicator */ -static unsigned int pld_space = 6824; -static unsigned char pld_bytes[6824] = "XCS05XL firmware pattern"; /* Magic number */ - diff --git a/spectro/spyd2setup.h b/spectro/spyd2setup.h deleted file mode 100644 index 60375dd..0000000 --- a/spectro/spyd2setup.h +++ /dev/null @@ -1,119 +0,0 @@ -#ifndef SPYD2SETUP_H - -/* - * Argyll Color Correction System - * - * ColorVision Spyder 2 related software. - * - * Author: Graeme W. Gill - * Date: 19/10/2006 - * - * Copyright 2006 - 2013, Graeme W. Gill - * All rights reserved. - * - * This material is licenced under the GNU GENERAL PUBLIC LICENSE Version 2 or later :- - * see the License2.txt file for licencing details. - */ - -/* This file is only included in top utilities that need to */ -/* be able to access the Spyder 2 colorimeter. This provides */ -/* a mechanism for ensuring that only such utilities load the */ -/* proprietary Spyder firmware, as well as providing a means to */ -/* detect if the spyder driver is going to be funcional. */ - -#ifdef __cplusplus -extern "C" { -#endif - -extern unsigned int *spyder2_pld_size; /* in spyd2.c */ -extern unsigned char *spyder2_pld_bytes; - -#ifdef __cplusplus -} -#endif - -/* Return 0 if Spyder 2 firmware is not available */ -/* Return 1 if Spyder 2 firmware is available from an external file */ -/* Return 2 if Spyder 2 firmware is part of this executable */ -int setup_spyd2() { -#ifdef ENABLE_USB - static int loaded = 0; /* Was loaded from a file */ - char **bin_paths = NULL; - int no_paths = 0; - unsigned int size, rsize; - FILE *fp; - int i; - - /* Spyder 2 Colorimeter Xilinx XCS05XL firmware pattern. */ - /* This is a placeholder in the distributed files. */ - /* It could be replaced with the actual end users firmware */ - /* by using the spyd2trans utility, but normally the spyd2PLD.bin */ - /* file is loaded instead. */ - -#include "spyd2PLD.h" - - spyder2_pld_size = &pld_size; - spyder2_pld_bytes = pld_bytes; - - /* If no firmware compiled in, see if there is a file to load from. */ - if ((pld_size == 0 || pld_size == 0x11223344) && loaded == 0) { - - - for (;;) { /* So we can break out */ - if ((no_paths = xdg_bds(NULL, &bin_paths, xdg_data, xdg_read, xdg_user, - "ArgyllCMS/spyd2PLD.bin" XDG_FUDGE "color/spyd2PLD.bin" -)) < 1) { - a1logd(g_log, 1, "setup_spyd2: failed to find PLD file\n"); - break; - } - - /* open binary file */ -#if !defined(O_CREAT) && !defined(_O_CREAT) -# error "Need to #include fcntl.h!" -#endif -#if defined(O_BINARY) || defined(_O_BINARY) - if ((fp = fopen(bin_paths[0],"rb")) == NULL) -#else - if ((fp = fopen(bin_paths[0],"r")) == NULL) -#endif - break; - xdg_free(bin_paths, no_paths); - - /* Figure out how file it is */ - if (fseek(fp, 0, SEEK_END)) { - fclose(fp); - break; - } - size = (unsigned long)ftell(fp); - - if (size > pld_space) - size = pld_space; - - if (fseek(fp, 0, SEEK_SET)) { - fclose(fp); - break; - } - - if (fread(pld_bytes, 1, size, fp) != size) { - fclose(fp); - break; - } - pld_size = size; - loaded = 1; /* We've loaded it from a file */ -// a1logd(g_log,0,"Spyder2 pld bytes = 0x%x 0x%x 0x%x 0x%x\n",pld_bytes[0], pld_bytes[1], pld_bytes[2], pld_bytes[3]); - fclose(fp); - break; - } - } - - if (pld_size != 0 && pld_size != 0x11223344) { - if (loaded) - return 1; /* Was loaded from a file */ - return 2; /* Was compiled in */ - } -#endif /* ENABLE_USB */ - return 0; /* Not available */ -} - -#define SPYD2SETUP_H -#endif /* SPYD2SETUP_H */ diff --git a/spectro/ss.c b/spectro/ss.c index c72e189..e01dd7a 100644 --- a/spectro/ss.c +++ b/spectro/ss.c @@ -1777,7 +1777,6 @@ ss_interp_error(inst *pp, int ec) { /* Our own communication errors here too. */ case ss_et_SerialFail: return "Serial communications failure"; - case ss_et_SendBufferFull: return "Message send buffer is full"; case ss_et_RecBufferEmpty: diff --git a/spectro/ss_imp.c b/spectro/ss_imp.c index 359d4c4..6f184b3 100644 --- a/spectro/ss_imp.c +++ b/spectro/ss_imp.c @@ -438,7 +438,6 @@ inst_code ss_inst_err(ss *p) { case ss_et_FilterOutOfPos: case ss_et_ProgrammingError: return inst_hardware_fail | ec; - } return inst_other_error | ec; } @@ -512,7 +511,7 @@ void ss_command(ss *p, double tmo) { p->sbuf[2] = '\00'; /* write_read terminates on nul */ p->rbuf = p->_rbuf; /* Reset read pointer */ - if ((se = p->icom->write_read(p->icom, p->_sbuf, p->_rbuf, SS_MAX_RD_SIZE, "\n", 1, tmo)) != 0) { + if ((se = p->icom->write_read(p->icom, p->_sbuf, 0, p->_rbuf, SS_MAX_RD_SIZE, NULL, "\n", 1, tmo)) != 0) { p->snerr = icoms2ss_err(se); return; } diff --git a/spectro/strange.cal b/spectro/strange.cal index c7f0179..ee5bf74 100644 --- a/spectro/strange.cal +++ b/spectro/strange.cal @@ -2,7 +2,7 @@ CAL DESCRIPTOR "Argyll Device Calibration Curves" ORIGINATOR "Argyll synthcal" -CREATED "Fri Jan 31 13:50:43 2014" +CREATED "Tue Apr 28 15:22:30 2015" KEYWORD "DEVICE_CLASS" DEVICE_CLASS "DISPLAY" KEYWORD "COLOR_REP" diff --git a/spectro/usbio.c b/spectro/usbio.c index f8a0529..508b357 100644 --- a/spectro/usbio.c +++ b/spectro/usbio.c @@ -51,14 +51,14 @@ int in_usb_rw = 0; void usb_init_cancel(usb_cancelt *p) { amutex_init(p->cmtx); - amutex_init(p->cond); + amutex_init(p->condx); p->hcancel = NULL; } void usb_uninit_cancel(usb_cancelt *p) { amutex_del(p->cmtx); - amutex_del(p->cond); + amutex_del(p->condx); } /* Used by caller of icoms to re-init for wait_io */ @@ -69,7 +69,7 @@ void usb_reinit_cancel(usb_cancelt *p) { p->hcancel = NULL; p->state = 0; - amutex_lock(p->cond); /* Block until IO is started */ + amutex_lock(p->condx); /* Block until IO is started */ amutex_unlock(p->cmtx); } @@ -79,8 +79,8 @@ static int icoms_usb_wait_io( icoms *p, usb_cancelt *cancelt ) { - amutex_lock(cancelt->cond); /* Wait for unlock */ - amutex_unlock(cancelt->cond); /* Free it up for next time */ + amutex_lock(cancelt->condx); /* Wait for unlock */ + amutex_unlock(cancelt->condx); /* Free it up for next time */ return ICOM_OK; } @@ -94,7 +94,7 @@ static int icoms_usb_wait_io( # include "usbio_ox.c" # endif # if defined(UNIX_X11) -# if defined(__FreeBSD__) +# if defined(__FreeBSD__) || defined(__OpenBSD__) # include "usbio_bsd.c" # else # include "usbio_lx.c" @@ -281,10 +281,19 @@ void (*usbio_term)(int sig) = SIG_DFL; /* On something killing our process, deal with USB cleanup */ static void icoms_sighandler(int arg) { + static amutex_static(lock); + a1logd(g_log, 6, "icoms_sighandler: invoked with arg = %d\n",arg); + + /* Make sure we don't re-enter */ + if (amutex_trylock(lock)) { + return; + } + if (in_usb_rw != 0) in_usb_rw = -1; icoms_cleanup(); + /* Call the existing handlers */ #ifdef UNIX if (arg == SIGHUP && usbio_hup != SIG_DFL && usbio_hup != SIG_IGN) @@ -296,6 +305,8 @@ static void icoms_sighandler(int arg) { usbio_term(arg); a1logd(g_log, 6, "icoms_sighandler: calling exit()\n"); + + amutex_unlock(lock); exit(0); } @@ -353,7 +364,8 @@ void usb_delete_from_cleanup_list(icoms *p) { static int icoms_usb_ser_write( icoms *p, -char *wbuf, +char *wbuf, /* null terminated unless nch > 0 */ +int nwch, /* if > 0, number of characters to write */ double tout) { int len, wbytes; @@ -385,7 +397,10 @@ double tout) else type = icom_usb_trantype_interrutpt; - len = strlen(wbuf); + if (nwch != 0) + len = nwch; + else + len = strlen(wbuf); tout *= 1000.0; /* Timout in msec */ top = (int)(tout + 0.5); /* Timeout period in msecs */ @@ -424,14 +439,15 @@ double tout) /* Read characters into the buffer */ /* Return string will be terminated with a nul */ /* Read only in packet sized chunks, and retry if */ -/* the bytes requested aren'r read, untill we get a */ +/* the bytes requested aren't read, untill we get a */ /* timeout or a terminating char is read */ static int icoms_usb_ser_read(icoms *p, char *rbuf, /* Buffer to store characters read */ int bsize, /* Buffer size */ -char *tc, /* Terminating characers, NULL if none */ -int ntc, /* Number of terminating characters needed to terminate */ +int *pbread, /* Bytes read (not including forced '\000') */ +char *tc, /* Terminating characers, NULL for none or char count mode */ +int ntc, /* Number of terminating characters or char count needed, if 0 use bsize */ double tout) /* Time out in seconds */ { int j, rbytes; @@ -441,10 +457,8 @@ double tout) /* Time out in seconds */ int ep = p->rd_ep; /* End point */ icom_usb_trantype type; /* bulk or interrupt */ int retrv = ICOM_OK; - -#ifdef QUIET_MEMCHECKERS - memset(rbuf, 0, bsize); -#endif + int nreads; /* Number of reads performed */ + int fastserial = 0; /* If fast serial type */ if (!p->is_open) { a1loge(p->log, ICOM_SYS, "icoms_usb_ser_read: device is not open\n"); @@ -472,40 +486,62 @@ double tout) /* Time out in seconds */ return ICOM_SYS; } - for (j = 0; j < bsize; j++) rbuf[j] = 0; - - bsize -= 1; /* Allow space for null */ - bsize -= p->ms_bytes; /* Allow space for modem status bytes */ + if (p->port_type(p) == icomt_usbserial) + fastserial = 1; + for (j = 0; j < bsize; j++) + rbuf[j] = 0; + /* The DTP94 doesn't cope with a timeout on OS X, so we need to avoid */ /* them by giving each read the largest timeout period possible. */ /* This also reduces the problem of libusb 0.1 not returning the */ - /* number of characters read on a timeou. */ + /* number of characters read on a timeout. */ ttop = (int)(tout * 1000.0 + 0.5); /* Total timeout period in msecs */ - a1logd(p->log, 8, "\nicoms_usb_ser_read: ep 0x%x, ttop %d, quant %d\n", p->rd_ep, ttop, p->rd_qa); + a1logd(p->log, 8, "\nicoms_usb_ser_read: ep 0x%x, bytes %d, ttop %d, ntc %d, quant %d\n", p->rd_ep, bsize, ttop, ntc, p->rd_qa); + + bsize -= 1; /* Allow space for null */ + bsize -= p->ms_bytes; /* Allow space for modem status bytes */ /* Until data is all read, we time out, or the user aborts */ - stime = msec_time(); + etime = stime = msec_time(); top = ttop; - for (j = 0; top > 0 && bsize > 1 && j < ntc ;) { + j = (tc == NULL && ntc <= 0) ? -1 : 0; + + for (nreads = 0; top > 0 && bsize > 0 && j < ntc ;) { int c, rv; - int rsize = p->rd_qa < bsize ? p->rd_qa : bsize; + int rsize = bsize; - a1logd(p->log, 8, "icoms_usb_ser_read: attempting to read %d bytes from usb, top = %d, j = %d\n",bsize > p->rd_qa ? p->rd_qa : bsize,top,j); + /* If not a fast USB serial port, read in quanta size chunks */ + if (!fastserial && rsize > p->rd_qa) + rsize = p->rd_qa; + + a1logd(p->log, 8, "icoms_usb_ser_read: attempting to read %d bytes from usb, top = %d, j = %d\n",rsize,top,j); rv = icoms_usb_transaction(p, NULL, &rbytes, type, (unsigned char)ep, (unsigned char *)rbuf, rsize, top); etime = msec_time(); + nreads++; if (rbytes > 0) { /* Account for bytes read */ - /* Account for modem status bytes. Modem bytes are per usb read. */ + /* Account for modem status bytes. Modem bytes are per usb read, */ + /* or every p->rd_qa bytes. */ if (p->ms_bytes) { /* Throw away modem bytes */ - int nb = rbytes < p->ms_bytes ? rbytes : p->ms_bytes; - rbytes -= nb; - memmove(rbuf, rbuf+nb, rbytes); - a1logd(p->log, 8, "icoms_usb_ser_read: discarded %d modem bytes\n",nb); + char *bp = rbuf; + int rb = rbytes; + for (; rb > 0; ) { + int nb = rb < p->ms_bytes ? rb : p->ms_bytes; /* Bytes to shift */ + if (p->interp_ms != NULL && nb >= p->ms_bytes) + retrv |= p->interp_ms(p, (unsigned char *)bp); /* Deal with error flags in ms bytes */ + a1logd(p->log, 8, "icoms_usb_ser_read: discarded %d modem bytes 0x%02x 0x%02x\n",nb,nb >= 1 ? (bp[0] & 0xff) : 0, nb >= 2 ? (bp[1] & 0xff) : 0); + rb -= nb; + rbytes -= nb; + memmove(bp, bp+nb, rb); + bp += p->rd_qa - p->ms_bytes; + rb -= p->rd_qa - p->ms_bytes; + } + rbuf[rbytes] = 0; } a1logd(p->log, 8, "icoms_usb_ser_read: read %d bytes, rbuf = '%s'\n",rbytes,icoms_fix(rrbuf)); @@ -521,7 +557,10 @@ double tout) /* Time out in seconds */ tcp++; } } + a1logd(p->log, 8, "icoms_usb_ser_read: tc count %d\n",j); } else { + if (ntc > 0) + j += rbytes; rbuf += rbytes; } } @@ -534,14 +573,20 @@ double tout) /* Time out in seconds */ } top = ttop - (etime - stime); /* Remaining time */ - if (top <= 0) { /* Run out of time */ - a1logd(p->log, 8, "icoms_usb_ser_read: read ran out of time\n"); - retrv |= ICOM_TO; - break; - } } *rbuf = '\000'; + a1logd(p->log, 8, "icoms_usb_ser_read: read %d total bytes with %d reads\n",rbuf - rrbuf, nreads); + if (pbread != NULL) + *pbread = (rbuf - rrbuf); + + /* If ran out of time and not completed */ + a1logd(p->log, 8, "icoms_usb_ser_read: took %d msec\n",etime - stime); + if (top <= 0 && bsize > 0 && j < ntc) { + a1logd(p->log, 8, "icoms_usb_ser_read: read ran out of time\n"); + a1logd(p->log, 8, "ttop %d, etime - stime %d\n",ttop,etime - stime); + retrv |= ICOM_TO; + } a1logd(p->log, 8, "icoms_usb_ser_read: returning '%s' ICOM err 0x%x\n",icoms_fix(rrbuf),retrv); diff --git a/spectro/usbio.h b/spectro/usbio.h index 1181801..578bd83 100644 --- a/spectro/usbio.h +++ b/spectro/usbio.h @@ -185,7 +185,7 @@ typedef enum { struct _usb_cancelt { amutex cmtx; int state; /* 0 = init, 1 = pending, 2 = complete */ - amutex cond; /* Wait for state 0->1 sync. mutex */ + amutex condx; /* Wait for state 0->1 sync. mutex */ void *hcancel; /* Pointer to implementation cancel handle */ }; diff --git a/spectro/usbio_bsd.c b/spectro/usbio_bsd.c index 7649caf..0af13a1 100644 --- a/spectro/usbio_bsd.c +++ b/spectro/usbio_bsd.c @@ -15,9 +15,14 @@ * see the License2.txt file for licencing details. */ +#pragma message("!!!!!! usbio_bsd.c is INCOMPLETE and USB instruments will NOT WORK !!!!!!") + /* !!!! This driver is incomplete and non-functional !!!! + ( Most of the below code is stubbed out, with the Linux + code as a placeholder. ) + BSD uses fd per end point, so simplifies things. No clear ep or abort i/o though, so we could try clear halt, @@ -504,7 +509,7 @@ static int icoms_usb_transaction( bp += req.urbs[i].urb.buffer_length; req.urbs[i].urb.status = -EINPROGRESS; } -a1logd(p->log, 8, "icoms_usb_transaction: reset req 0x%p nourbs to %d\n",&req,req.nourbs); +a1logd(p->log, 8, "icoms_usb_transaction: reset req %p nourbs to %d\n",&req,req.nourbs); /* Add our request to the req list so that it can be cancelled on reap failure */ pthread_mutex_lock(&p->usbd->lock); diff --git a/spectro/usbio_lx.c b/spectro/usbio_lx.c index 44307fd..7cc37e6 100644 --- a/spectro/usbio_lx.c +++ b/spectro/usbio_lx.c @@ -460,8 +460,11 @@ char **pnames /* List of process names to try and kill before opening */ if ((rv = p->usbd->fd = open(p->usbd->dpath, O_RDWR)) < 0) { a1logd(p->log, 8, "usb_open_port: open '%s' config %d failed (%d) (Permissions ?)\n",p->usbd->dpath,config,rv); if (retries <= 0) { - if (kpc != NULL) + if (kpc != NULL) { + if (kpc->th->result < 0) + a1logw(p->log, "usb_open_port: killing competing processes failed\n"); kpc->del(kpc); + } a1loge(p->log, ICOM_SYS, "usb_open_port: open '%s' config %d failed (%d) (Permissions ?)\n",p->usbd->dpath,config,rv); return ICOM_SYS; } @@ -636,25 +639,53 @@ static void *urb_reaper(void *context) { pa[0].events = POLLIN | POLLOUT; pa[0].revents = 0; + /* Setup to wait for a shutdown signal via the sd_pipe */ pa[1].fd = p->usbd->sd_pipe[0]; pa[1].events = POLLIN; pa[1].revents = 0; - /* Wait for fd to become ready or shutdown */ - if ((rv = poll_x(pa, 2, -1)) < 0 || pa[1].revents || pa[0].revents == 0) { - a1logd(p->log, 6, "urb_reaper: poll returned %d and events %d %d\n",rv,pa[0].revents,pa[1].revents); + /* Wait for fd to become ready or fail */ + rv = poll_x(pa, 2, -1); + + /* Failed */ + if (rv < 0) { + a1logd(p->log, 2, "urb_reaper: poll failed with %d\n",rv); + if (errc++ < 5) { + continue; + } + a1logd(p->log, 2, "urb_reaper: poll failed too many times - shutting down\n"); p->usbd->shutdown = 1; break; } + /* Shutdown event */ + if (pa[1].revents != 0) { + a1logd(p->log, 6, "urb_reaper: poll returned events %d %d - shutting down\n", + pa[0].revents,pa[1].revents); + p->usbd->shutdown = 1; + break; + } + + /* Hmm. poll returned without event from fd. */ + if (pa[0].revents == 0) { + a1logd(p->log, 6, "urb_reaper: poll returned events %d %d - ignoring\n", + pa[0].revents,pa[1].revents); + continue; + } + /* Not sure what this returns if there is nothing there */ rv = ioctl(p->usbd->fd, USBDEVFS_REAPURBNDELAY, &out); + if (rv == EAGAIN) { + a1logd(p->log, 2, "urb_reaper: reap returned EAGAIN - ignored\n"); + continue; + } if (rv < 0) { a1logd(p->log, 2, "urb_reaper: reap failed with %d\n",rv); if (errc++ < 5) { continue; } + a1logd(p->log, 2, "urb_reaper: reap failed too many times - shutting down\n"); p->usbd->shutdown = 1; break; } @@ -662,7 +693,7 @@ static void *urb_reaper(void *context) { errc = 0; if (out == NULL) { - a1logd(p->log, 2, "urb_reaper: reap returned NULL URB\n"); + a1logd(p->log, 2, "urb_reaper: reap returned NULL URB - ignored\n"); continue; } @@ -710,7 +741,7 @@ static void *urb_reaper(void *context) { pthread_mutex_lock(&req->lock); for (i = req->nourbs-1; i >= 0; i--) { - req->urbs[i].urb.status = ICOM_SYS; + req->urbs[i].urb.status = -ENOMSG; /* Use ENOMSG as error marker */ } req->nourbs = 0; pthread_cond_signal(&req->cond); @@ -803,7 +834,7 @@ static int icoms_usb_transaction( bp += req.urbs[i].urb.buffer_length; req.urbs[i].urb.status = -EINPROGRESS; } -a1logd(p->log, 8, "icoms_usb_transaction: reset req 0x%p nourbs to %d\n",&req,req.nourbs); +a1logd(p->log, 8, "icoms_usb_transaction: reset req %p nourbs to %d\n",&req,req.nourbs); /* Add our request to the req list so that it can be cancelled on reap failure */ pthread_mutex_lock(&p->usbd->lock); @@ -815,7 +846,7 @@ a1logd(p->log, 8, "icoms_usb_transaction: reset req 0x%p nourbs to %d\n",&req,re for (i = 0; i < req.nurbs; i++) { if ((rv = ioctl(p->usbd->fd, USBDEVFS_SUBMITURB, &req.urbs[i].urb)) < 0) { a1logd(p->log, 1, "coms_usb_transaction: Submitting urb to fd %d failed with %d\n",p->usbd->fd, rv); - req.urbs[i].urb.status = ICOM_SYS; /* Mark it as failed to submit */ + req.urbs[i].urb.status = -ENOMSG; /* Mark it as failed to submit */ req.nourbs--; } } @@ -824,7 +855,7 @@ a1logd(p->log, 8, "icoms_usb_transaction: reset req 0x%p nourbs to %d\n",&req,re amutex_lock(cancelt->cmtx); cancelt->hcancel = (void *)&req; cancelt->state = 1; - amutex_unlock(cancelt->cond); /* Signal any thread waiting for IO start */ + amutex_unlock(cancelt->condx); /* Signal any thread waiting for IO start */ amutex_unlock(cancelt->cmtx); } @@ -887,7 +918,7 @@ a1logd(p->log, 8, "icoms_usb_transaction: reset req 0x%p nourbs to %d\n",&req,re int stat = req.urbs[i].urb.status; xlength += req.urbs[i].urb.actual_length; - if (stat == ICOM_SYS) { /* Submit or cancel failed */ + if (stat == -ENOMSG) { /* Submit or cancel failed */ reqrv = ICOM_SYS; } else if (reqrv == ICOM_OK && stat < 0 && stat != -ECONNRESET) { /* Error result */ if ((endpoint & IUSB_ENDPOINT_DIR_MASK) == IUSB_ENDPOINT_OUT) @@ -919,7 +950,7 @@ done:; amutex_lock(cancelt->cmtx); cancelt->hcancel = (void *)NULL; if (cancelt->state == 0) - amutex_unlock(cancelt->cond); + amutex_unlock(cancelt->condx); cancelt->state = 2; amutex_unlock(cancelt->cmtx); } diff --git a/spectro/usbio_nt.c b/spectro/usbio_nt.c index de9b265..8eb791f 100644 --- a/spectro/usbio_nt.c +++ b/spectro/usbio_nt.c @@ -409,6 +409,7 @@ void usb_close_port(icoms *p) { &req, sizeof(libusb_request), NULL, 0, NULL)) != ICOM_OK) { a1logd(p->log, 1, "usb_close_port: reset returned %d\n",rv); } + msec_sleep(500); /* Things foul up unless we wait for the reset... */ } CloseHandle(p->usbd->handle); @@ -466,9 +467,12 @@ char **pnames /* List of process names to try and kill before opening */ FILE_FLAG_OVERLAPPED, NULL)) == INVALID_HANDLE_VALUE) { a1logd(p->log, 8, "usb_open_port: open '%s' config %d failed (%d) (Device being used ?)\n",p->usbd->dpath,config,GetLastError()); if (retries <= 0) { - if (kpc != NULL) + if (kpc != NULL) { + if (kpc->th->result < 0) + a1logw(p->log, "usb_open_port: killing competing processes failed\n"); kpc->del(kpc); - a1loge(p->log, ICOM_SYS, "usb_open_port: open '%s' config %d failed (%d) (Device being used ?)\n",p->usbd->dpath,config,GetLastError()); + } + a1logw(p->log, "usb_open_port: open '%s' config %d failed (%d) (Device being used ?)\n",p->usbd->dpath,config,GetLastError()); return ICOM_SYS; } continue; @@ -614,7 +618,7 @@ static int icoms_usb_transaction( amutex_lock(cancelt->cmtx); cancelt->hcancel = (void *)&endpoint; cancelt->state = 1; - amutex_unlock(cancelt->cond); /* Signal any thread waiting for IO start */ + amutex_unlock(cancelt->condx); /* Signal any thread waiting for IO start */ amutex_unlock(cancelt->cmtx); } @@ -643,7 +647,7 @@ done:; amutex_lock(cancelt->cmtx); cancelt->hcancel = (void *)NULL; if (cancelt->state == 0) - amutex_unlock(cancelt->cond); /* Make sure this gets unlocked */ + amutex_unlock(cancelt->condx); /* Make sure this gets unlocked */ cancelt->state = 2; amutex_unlock(cancelt->cmtx); } diff --git a/spectro/usbio_ox.c b/spectro/usbio_ox.c index c92aed5..312c355 100644 --- a/spectro/usbio_ox.c +++ b/spectro/usbio_ox.c @@ -244,16 +244,6 @@ static void cleanup_device(icoms *p) { if (p->usbd->device != NULL) { /* device is open */ int i; - /* Stop the RunLoop and wait for it */ - if (p->usbd->cfrunloop != NULL) { - - a1logd(p->log, 6, "usb_close_port: waiting for RunLoop thread to exit\n"); - CFRunLoopStop(p->usbd->cfrunloop); - CFRelease(p->usbd->cfrunloop); - if (p->usbd->thread != NULL) - pthread_join(p->usbd->thread, NULL); - } - /* Release all the interfaces */ for (i = 0; i < p->usbd->nifce; i++) { if (p->usbd->interfaces[i] != NULL) { @@ -266,9 +256,6 @@ static void cleanup_device(icoms *p) { (*(p->usbd->device))->USBDeviceClose(p->usbd->device); (*(p->usbd->device))->Release(p->usbd->device); } - pthread_cond_destroy(&p->usbd->cond); - pthread_mutex_destroy(&p->usbd->lock); - memset(p->usbd, 0, sizeof(struct usb_idevice)); } } @@ -336,9 +323,6 @@ char **pnames /* List of process names to try and kill before opening */ return ICOM_NOTS; } - pthread_mutex_init(&p->usbd->lock, NULL); - pthread_cond_init(&p->usbd->cond, NULL); - /* Do open retries */ for (tries = 0; retries >= 0; retries--, tries++) { IOCFPlugInInterface **piif = NULL; @@ -353,6 +337,7 @@ char **pnames /* List of process names to try and kill before opening */ if (tries > 0 && pnames != NULL && kpc == NULL) { if ((kpc = kkill_nprocess(pnames, p->log)) == NULL) { a1logd(p->log, 1, "kkill_nprocess returned error!\n"); + return ICOM_SYS; } } @@ -377,8 +362,11 @@ char **pnames /* List of process names to try and kill before opening */ if ((rv = (*p->usbd->device)->USBDeviceOpenSeize(p->usbd->device)) != kIOReturnSuccess) { a1logd(p->log, 8, "usb_open_port: open '%s' config %d failed (0x%x) (Device being used ?)\n",p->name,config,rv); if (retries <= 0) { - if (kpc != NULL) + if (kpc != NULL) { + if (kpc->th->result < 0) + a1logw(p->log, "usb_open_port: killing competing processes failed\n"); kpc->del(kpc); + } a1loge(p->log, rv, "usb_open_port: open '%s' config %d failed (0x%x) (Device being used ?)\n",p->name, config, rv); (*p->usbd->device)->Release(p->usbd->device); return ICOM_SYS; @@ -508,28 +496,6 @@ char **pnames /* List of process names to try and kill before opening */ IOObjectRelease(ioit); } - { - /* Setup the RunLoop thread */ - a1logd(p->log, 6, "usb_open_port: Starting RunLoop thread\n"); - if ((rv = pthread_create(&p->usbd->thread, NULL, io_runloop, (void*)p)) < 0) { - a1loge(p->log, ICOM_SYS, "usb_open_port: creating RunLoop thread failed with %s\n",rv); - cleanup_device(p); - return ICOM_SYS; - } - - /* Wait for the runloop thread to start and create a cfrunloop */ - pthread_mutex_lock(&p->usbd->lock); - while (p->usbd->cfrunloop == NULL) - pthread_cond_wait(&p->usbd->cond, &p->usbd->lock); - pthread_mutex_unlock(&p->usbd->lock); - if (p->usbd->thrv != kIOReturnSuccess) { /* Thread failed */ - pthread_join(p->usbd->thread, NULL); - cleanup_device(p); - return ICOM_SYS; - } - CFRetain(p->usbd->cfrunloop); - a1logd(p->log, 6, "usb_open_port: RunLoop thread started\n"); - } /* Clear any errors */ /* (Some I/F seem to hang if we do this, some seem to hang if we don't !) */ @@ -562,70 +528,6 @@ char **pnames /* List of process names to try and kill before opening */ /* -------------------------------------------------------------- */ -/* The run loop thread */ -static void *io_runloop(void *context) { - icoms *p = (icoms *)context; - int i; - - /* Register this thread with the Objective-C garbage collector */ -#if MAC_OS_X_VERSION_MIN_REQUIRED >= 1060 - objc_registerThreadWithCollector(); -#endif - - a1logd(p->log, 6, "io_runloop: thread started\n"); - - p->usbd->cfrunloop = CFRunLoopGetCurrent(); /* Get this threads RunLoop */ - CFRetain(p->usbd->cfrunloop); - - /* Add a device event source */ - if ((p->usbd->thrv = (*(p->usbd->device))->CreateDeviceAsyncEventSource( - p->usbd->device, &p->usbd->cfsource)) != kIOReturnSuccess) { - a1loge(p->log, p->usbd->thrv, "io_runloop: CreateDeviceAsyncEventSource failed with 0x%x\n",p->usbd->thrv); - } else { - CFRunLoopAddSource(p->usbd->cfrunloop, p->usbd->cfsource, kCFRunLoopDefaultMode); - } - - /* Create an async event source for the interfaces */ - for (i = 0; p->usbd->thrv == kIOReturnSuccess && i < p->usbd->nifce; i++) { - if ((p->usbd->thrv = (*(p->usbd->interfaces[i]))->CreateInterfaceAsyncEventSource( - p->usbd->interfaces[i], &p->usbd->cfsources[i])) != kIOReturnSuccess) { - a1loge(p->log, p->usbd->thrv, "io_runloop: CreateInterfaceAsyncEventSource failed with 0x%x\n",p->usbd->thrv); - } else { - /* Add it to the RunLoop */ - CFRunLoopAddSource(p->usbd->cfrunloop, p->usbd->cfsources[i], kCFRunLoopDefaultMode); - } - } - - /* Signal main thread that we've started */ - pthread_mutex_lock(&p->usbd->lock); - pthread_cond_signal(&p->usbd->cond); - pthread_mutex_unlock(&p->usbd->lock); - - /* Run the loop, or exit on error */ - if (p->usbd->thrv == kIOReturnSuccess) { - CFRunLoopRun(); /* Run the loop and deliver events */ - } - - /* Delete the interfaces async event sources */ - for (i = 0; i < p->usbd->nifce; i++) { - if (p->usbd->cfsources[i] != NULL) { - CFRunLoopRemoveSource(p->usbd->cfrunloop, p->usbd->cfsources[i], kCFRunLoopDefaultMode); - CFRelease(p->usbd->cfsources[i]); - } - } - - /* Delete the devices event sources */ - if (p->usbd->cfsource != NULL) { - CFRunLoopRemoveSource(p->usbd->cfrunloop, p->usbd->cfsource, kCFRunLoopDefaultMode); - CFRelease(p->usbd->cfsource); - } - - CFRelease(p->usbd->cfrunloop); - - a1logd(p->log, 6, "io_runloop: thread done\n"); - return NULL; -} - /* I/O structures */ typedef struct _usbio_req { @@ -633,14 +535,12 @@ typedef struct _usbio_req { int iix; /* Interface index */ UInt8 pno; /* pipe index */ volatile int done; /* Done flag */ - pthread_mutex_t lock; /* Protect req & callback access */ - pthread_cond_t cond; /* Signal to thread waiting on req */ int xlength; /* Bytes transferred */ IOReturn result; /* Result of transaction */ + CFRunLoopRef rlr; /* RunLoop of calling thread */ } usbio_req; - -/* Async completion callback - called by RunLoop thread */ +/* Async completion callback - called by RunLoop */ static void io_callback(void *refcon, IOReturn result, void *arg0) { usbio_req *req = (usbio_req *)refcon; @@ -649,9 +549,8 @@ static void io_callback(void *refcon, IOReturn result, void *arg0) { req->xlength = (int)(long)arg0; req->result = result; req->done = 1; - pthread_mutex_lock(&req->lock); - pthread_cond_signal(&req->cond); - pthread_mutex_unlock(&req->lock); + + CFRunLoopStop(req->rlr); /* We're done */ } /* Our universal USB transfer function */ @@ -669,6 +568,7 @@ static int icoms_usb_transaction( int dirw = (endpoint & IUSB_ENDPOINT_DIR_MASK) == IUSB_ENDPOINT_OUT ? 1 : 0; usbio_req req; IOReturn result; + CFRunLoopSourceRef cfsource; /* Device event sources */ int iix = p->EPINFO(endpoint).interface; UInt8 pno = (UInt8)p->EPINFO(endpoint).pipe; @@ -687,16 +587,30 @@ static int icoms_usb_transaction( req.pno = pno; req.xlength = 0; req.done = 0; - pthread_mutex_init(&req.lock, NULL); - pthread_cond_init(&req.cond, NULL); + + req.rlr = CFRunLoopGetCurrent(); /* Get this threads RunLoop */ + CFRetain(req.rlr); + + /* Create an async event source for the interface */ + if ((result = (*(p->usbd->interfaces[iix]))->CreateInterfaceAsyncEventSource( + p->usbd->interfaces[iix], &cfsource)) != kIOReturnSuccess) { + a1logw(p->log, "icoms_usb_transaction: CreateInterfaceAsyncEventSource failed with 0x%x\n",result); + CFRelease(req.rlr); + return ICOM_SYS; + } + CFRetain(cfsource); + + /* Add it to the RunLoop */ + CFRunLoopAddSource(req.rlr, cfsource, kCFRunLoopDefaultMode); if (dirw) result = (*p->usbd->interfaces[iix])->WritePipeAsync(p->usbd->interfaces[iix], pno, buffer, length, io_callback, &req); - else + else result = (*p->usbd->interfaces[iix])->ReadPipeAsync(p->usbd->interfaces[iix], pno, buffer, length, io_callback, &req); + if (result != kIOReturnSuccess) { a1loge(p->log, ICOM_SYS, "icoms_usb_transaction: %sPipeAsync failed with 0x%x\n",dirw ? "Write" : "Read", result); reqrv = ICOM_SYS; @@ -707,66 +621,46 @@ static int icoms_usb_transaction( amutex_lock(cancelt->cmtx); cancelt->hcancel = (void *)&req; cancelt->state = 1; - amutex_unlock(cancelt->cond); /* Signal any thread waiting for IO start */ + amutex_unlock(cancelt->condx); /* Signal any thread waiting for IO start */ amutex_unlock(cancelt->cmtx); } - /* Wait for the callback to complete */ - pthread_mutex_lock(&req.lock); - if (!req.done) { - struct timeval tv; - struct timespec ts; - - // this is unduly complicated... - gettimeofday(&tv, NULL); - ts.tv_sec = tv.tv_sec + timeout/1000; - ts.tv_nsec = (tv.tv_usec + (timeout % 1000) * 1000) * 1000L; - if (ts.tv_nsec > 1000000000L) { - ts.tv_nsec -= 1000000000L; - ts.tv_sec++; - } - - for(;;) { /* Ignore spurious wakeups */ - if ((rv = pthread_cond_timedwait(&req.cond, &req.lock, &ts)) != 0) { - if (rv != ETIMEDOUT) { - a1logd(p->log, 1, "coms_usb_transaction: pthread_cond_timedwait failed with %d\n",rv); - (*p->usbd->interfaces[iix])->AbortPipe(p->usbd->interfaces[iix], pno); - req.result = kIOReturnAborted; - reqrv = ICOM_SYS; - break; - } - - /* Timed out */ - a1logd(p->log, 8, "coms_usb_transaction: time out - aborting io\n"); - (*p->usbd->interfaces[iix])->AbortPipe(p->usbd->interfaces[iix], pno); - reqrv = ICOM_TO; - /* Wait for the cancelled io to be signalled */ - if ((rv = pthread_cond_wait(&req.cond, &req.lock)) != 0) { - pthread_mutex_unlock(&req.lock); - a1logd(p->log, 1, "coms_usb_transaction: pthread_cond_wait failed with %d\n",rv); - req.result = kIOReturnAborted; - reqrv = ICOM_SYS; - break; - } - break; - } - if (req.done) /* Ignore spurious wakeups */ - break; - } + /* Wait for the callback to complete or for a timeout */ + result = CFRunLoopRunInMode(kCFRunLoopDefaultMode, timeout / 1000.0, false); + + // kCFRunLoopRunFinished = 1 + // kCFRunLoopRunStopped = 2 + // kCFRunLoopRunTimedOut = 3 + // kCFRunLoopRunHandledSource = 4 + + if (result == kCFRunLoopRunTimedOut) { + /* Timed out - so abort i/o */ + a1logd(p->log, 8, "coms_usb_transaction: time out - aborting io\n"); + (*p->usbd->interfaces[iix])->AbortPipe(p->usbd->interfaces[iix], pno); + CFRunLoopRun(); /* Wait for abort */ + reqrv = ICOM_TO; + } else if (result != kCFRunLoopRunStopped) { + a1logd(p->log, 8, "coms_usb_transaction: unexpected result 0x%x\n",result); + reqrv = ICOM_USBR; } - pthread_mutex_unlock(&req.lock); + + done:; + CFRunLoopRemoveSource(req.rlr, cfsource, kCFRunLoopDefaultMode); + CFRelease(cfsource); + CFRelease(req.rlr); a1logd(p->log, 8, "coms_usb_transaction: completed with reqrv 0x%x and xlength %d\n",req.result,req.xlength); /* If io was aborted, ClearPipeStall */ if (req.result == kIOReturnAborted) { + a1logd(p->log, 8, "coms_usb_transaction: io was aborted\n"); #if (InterfaceVersion > 182) (*p->usbd->interfaces[iix])->ClearPipeStallBothEnds(p->usbd->interfaces[iix], pno); #else (*p->usbd->interfaces[iix])->ClearPipeStall(p->usbd->interfaces[iix], pno); - icoms_usb_control_msg(p, NULL, IUSB_REQ_HOST_TO_DEV | IUSB_REQ_TYPE_STANDARD - | IUSB_REQ_RECIP_ENDPOINT, IUSB_REQ_CLEAR_FEATURE, - IUSB_FEATURE_EP_HALT, endpoint, NULL, 0, 200); +// icoms_usb_control_msg(p, NULL, IUSB_REQ_HOST_TO_DEV | IUSB_REQ_TYPE_STANDARD +// | IUSB_REQ_RECIP_ENDPOINT, IUSB_REQ_CLEAR_FEATURE, +// IUSB_FEATURE_EP_HALT, endpoint, NULL, 0, 200); #endif if (reqrv == ICOM_OK) /* If not aborted for a known reason, must be cancelled */ reqrv = ICOM_CANC; @@ -788,19 +682,15 @@ static int icoms_usb_transaction( if (transferred != NULL) *transferred = req.xlength; -done:; if (cancelt != NULL) { amutex_lock(cancelt->cmtx); cancelt->hcancel = (void *)NULL; if (cancelt->state == 0) - amutex_unlock(cancelt->cond); + amutex_unlock(cancelt->condx); cancelt->state = 2; amutex_unlock(cancelt->cmtx); } - pthread_cond_destroy(&req.cond); - pthread_mutex_destroy(&req.lock); - if (in_usb_rw < 0) exit(0); diff --git a/spectro/webwin.c b/spectro/webwin.c index 1de010a..e00fd9b 100644 --- a/spectro/webwin.c +++ b/spectro/webwin.c @@ -24,7 +24,7 @@ # include # include # include -# ifdef __FreeBSD__ +# if defined(__FreeBSD__) || defined(__OpenBSD__) # include # endif /* __FreeBSD__ */ #endif @@ -220,8 +220,7 @@ double r, double g, double b /* Color values 0.0 - 1.0 */ int j; double orgb[3]; /* Previous RGB value */ double kr, kf; - int update_delay = p->update_delay; - double xdelay = 0.0; /* Extra delay for response time */ + int update_delay = 0; debugr("webwin_set_color called\n"); @@ -256,60 +255,18 @@ double r, double g, double b /* Color values 0.0 - 1.0 */ msec_sleep(50); } - /* Don't want extra delay if we're measuring update delay */ - if (update_delay != 0 && p->do_resp_time_del) { - /* Compute am expected response time for the change in level */ - kr = DISPLAY_RISE_TIME/log(1 - 0.9); /* Exponent constant */ - kf = DISPLAY_FALL_TIME/log(1 - 0.9); /* Exponent constant */ -//printf("~1 k2 = %f\n",k2); - for (j = 0; j < 3; j++) { - double el, dl, n, t; - - el = pow(p->rgb[j], 2.2); - dl = el - pow(orgb[j], 2.2); /* Change in level */ - if (fabs(dl) > 0.01) { /* More than 1% change in level */ - n = DISPLAY_SETTLE_AIM * el; - if (n < DISPLAY_ABS_AIM) - n = DISPLAY_ABS_AIM; -//printf("~1 sl %f, el %f, log (%f / %f)\n",sl,el,n,fabs(sl - el)); - if (dl > 0.0) - t = kr * log(n/dl); - else - t = kf * log(n/-dl); - - if (t > xdelay) - xdelay = t; - } - } -//printf("~1 xdelay = %f secs\n",xdelay); - xdelay *= 1000.0; /* To msec */ - /* This is kind of a fudge since update delay is after latency, */ - /* but displays with long delay (ie. CRT) have short latency, and visa versa */ - if ((int)xdelay > update_delay) - update_delay = (int)xdelay; - } - - /* Allow some time for the display to update before */ - /* a measurement can take place. This allows for CRT */ - /* refresh, or LCD processing/update time, + */ - /* display settling time (quite long for smaller LCD changes). */ + /* Allow for display update & instrument delays */ + update_delay = dispwin_compute_delay(p, orgb); + debugr2((errout, "webwin_set_color delaying %d msec\n",update_delay)); msec_sleep(update_delay); return 0; } -/* ----------------------------------------------- */ -/* Set an update delay, and return the previous value */ -/* Value can be set to zero, but othewise will be forced */ -/* to be >= min_update_delay */ -static int webwin_set_update_delay( -dispwin *p, -int update_delay) { - int cval = p->update_delay; - p->update_delay = update_delay; - if (update_delay != 0 && p->update_delay < p->min_update_delay) - p->update_delay = p->min_update_delay; - return cval; +/* Set/unset the blackground color flag */ +/* Return nz on error */ +static int webwin_set_bg(dispwin *p, int blackbg) { + return 1; /* Setting black BG not supported */ } /* ----------------------------------------------- */ @@ -371,6 +328,7 @@ int ddebug /* >0 to print debug statements to stderr */ struct mg_context *mg; const char *options[3]; char port[50]; + char *url; debug("new_webwin called\n"); @@ -381,20 +339,25 @@ int ddebug /* >0 to print debug statements to stderr */ /* !!!! Make changes in dispwin.c & madvrwin.c as well !!!! */ p->name = strdup("Web Window"); + p->width = width; + p->height = height; p->nowin = nowin; p->native = native; p->out_tvenc = out_tvenc; p->blackbg = blackbg; p->ddebug = ddebug; - p->get_ramdac = webwin_get_ramdac; - p->set_ramdac = webwin_set_ramdac; - p->install_profile = webwin_install_profile; - p->uninstall_profile = webwin_uninstall_profile; - p->get_profile = webwin_get_profile; - p->set_color = webwin_set_color; - p->set_update_delay = webwin_set_update_delay; - p->set_callout = webwin_set_callout; - p->del = webwin_del; + p->get_ramdac = webwin_get_ramdac; + p->set_ramdac = webwin_set_ramdac; + p->install_profile = webwin_install_profile; + p->uninstall_profile = webwin_uninstall_profile; + p->get_profile = webwin_get_profile; + p->set_color = webwin_set_color; + p->set_bg = webwin_set_bg; + p->set_update_delay = dispwin_set_update_delay; + p->set_settling_delay = dispwin_set_settling_delay; + p->enable_update_delay = dispwin_enable_update_delay; + p->set_callout = webwin_set_callout; + p->del = webwin_del; if (noramdac != NULL) *noramdac = 1; @@ -405,21 +368,8 @@ int ddebug /* >0 to print debug statements to stderr */ p->native &= ~2; p->rgb[0] = p->rgb[1] = p->rgb[2] = 0.5; /* Set Grey as the initial test color */ - - p->min_update_delay = 20; - - if ((cp = getenv("ARGYLL_MIN_DISPLAY_UPDATE_DELAY_MS")) != NULL) { - p->min_update_delay = atoi(cp); - if (p->min_update_delay < 20) - p->min_update_delay = 20; - if (p->min_update_delay > 60000) - p->min_update_delay = 60000; - debugr2((errout, "new_webwin: Minimum display update delay set to %d msec\n",p->min_update_delay)); - } - - p->update_delay = DISPLAY_UPDATE_DELAY; /* Default update delay */ - if (p->update_delay < p->min_update_delay) - p->update_delay = p->min_update_delay; + + dispwin_set_default_delays(p); p->ncix = 1; @@ -438,74 +388,19 @@ int ddebug /* >0 to print debug statements to stderr */ //printf("Domain = %s'\n",mg_get_option(mg, "authentication_domain")); - /* Create a suitable description */ -#if NT + /* Create a suitable description/url */ { - char szHostName[255]; - struct hostent *host_entry; - char *localIP; - char buf[1000]; + char buf[100], *url; - /* We assume WinSock has been started by mongoose */ - - // Get the local hostname - gethostname(szHostName, 255); - host_entry=gethostbyname(szHostName); - /* Get first entry */ - localIP = inet_ntoa(*(struct in_addr *)*host_entry->h_addr_list); - - sprintf(buf,"Web Window at http://%s:%d",localIP,webdisp); + if ((url = mg_get_url(mg)) == NULL) + error("Failed to get Web server URL"); + sprintf(buf,"Web Window at '%s'",url); p->description = strdup(buf); - if (verb) - printf("Created web server at 'http://%s:%d', now waiting for browser to connect\n",localIP,webdisp); - } -#else - { - struct ifaddrs * ifAddrStruct=NULL; - struct ifaddrs * ifa=NULL; - void *tmpAddrPtr=NULL; - char abuf[INET_ADDRSTRLEN] = ""; - char abuf6[INET6_ADDRSTRLEN] = ""; - char *addr = abuf; - char buf[1000]; - - getifaddrs(&ifAddrStruct); - - /* Stop at the first non local adderss */ - for (ifa = ifAddrStruct; ifa != NULL; ifa = ifa->ifa_next) { -#ifdef AF_INET6 - if (ifa->ifa_addr->sa_family==AF_INET) { /* IP4 ? */ -#endif - if (strncmp(ifa->ifa_name, "lo",2) == 0 || abuf[0] != '\000') - continue; - tmpAddrPtr=&((struct sockaddr_in *)ifa->ifa_addr)->sin_addr; - inet_ntop(AF_INET, tmpAddrPtr, abuf, INET_ADDRSTRLEN); -// printf("%s IP Address %s\n", ifa->ifa_name, addressBuffer); -#ifdef AF_INET6 - } else if (ifa->ifa_addr->sa_family==AF_INET6) { /* IP6 ? */ - if (strncmp(ifa->ifa_name, "lo",2) == 0 || abuf6[0] != '\000') - continue; - tmpAddrPtr=&((struct sockaddr_in6 *)ifa->ifa_addr)->sin6_addr; - inet_ntop(AF_INET6, tmpAddrPtr, abuf6, INET6_ADDRSTRLEN); -// printf("%s IP Address %s\n", ifa->ifa_name, addressBuffer); - } -#endif - } - if (ifAddrStruct!=NULL) - freeifaddrs(ifAddrStruct); - if (addr[0] == '\000') - addr = abuf6; - if (addr[0] == '\000') - addr = "Unknown"; - - sprintf(buf,"Web Window at http://%s:%d",addr,webdisp); - p->description = strdup(buf); + printf("Created web server at '%s', now waiting for browser to connect\n",url); - if (verb) - printf("Created web server at 'http://%s:%d', now waiting for browser to connect\n",addr,webdisp); + free(url); } -#endif /* Wait for the web server to connect */ debugr("new_webwin: waiting for web browser to connect\n"); diff --git a/spectro/xdg_bds.c b/spectro/xdg_bds.c index 9d81291..c1805ed 100644 --- a/spectro/xdg_bds.c +++ b/spectro/xdg_bds.c @@ -49,7 +49,7 @@ $XDG_DATA_HOME $HOME/.local/share - $XDG_CONF_HOME + $XDG_CONFIG_HOME $HOME/.config $XDG_CACHE_HOME @@ -58,14 +58,14 @@ $XDG_DATA_DIRS /usr/local/share:/usr/share - $XDG_CONF_DIRS + $XDG_CONFIG_DIRS /etc/xdg OS X: $XDG_DATA_HOME $HOME/Library/Application Support - $XDG_CONF_HOME + $XDG_CONFIG_HOME $HOME/Library/Preferences $XDG_CACHE_HOME @@ -74,7 +74,7 @@ $XDG_DATA_DIRS /Library/Application Support - $XDG_CONF_DIRS + $XDG_CONFIG_DIRS /Library/Preferences MSWin: @@ -82,7 +82,7 @@ $APPDATA $HOME/.local/share - $XDG_CONF_HOME + $XDG_CONFIG_HOME $APPDATA $HOME/.config @@ -93,7 +93,7 @@ $XDG_DATA_DIRS $ALLUSERSPROFILE - $XDG_CONF_DIRS + $XDG_CONFIG_DIRS $ALLUSERSPROFILE */ @@ -119,6 +119,7 @@ #include "aglob.h" #include "xdg_bds.h" + #undef DEBUG #ifdef DEBUG @@ -345,7 +346,7 @@ int xdg_bds( } } else if (st == xdg_conf) { char *xdg, *home; - if ((xdg = getenv("XDG_CONF_HOME")) != NULL) { + if ((xdg = getenv("XDG_CONFIG_HOME")) != NULL) { if ((path = cappend(path, xdg)) == NULL) { if (er != NULL) *er = xdg_alloc; a1loge(g_log, 1, "xdg_bds: malloc failed\n"); @@ -489,7 +490,7 @@ int xdg_bds( } } } else if (st == xdg_conf) { - if ((xdg = getenv("XDG_CONF_DIRS")) != NULL) { + if ((xdg = getenv("XDG_CONFIG_DIRS")) != NULL) { if ((path = cappend(path, xdg)) == NULL) { if (er != NULL) *er = xdg_alloc; a1loge(g_log, 1, "xdg_bds: malloc failed\n"); @@ -744,9 +745,11 @@ int xdg_bds( if (getenv("SUDO_UID") != NULL && getenv("SUDO_GID") != NULL) { DBG((DBGA,"We're setting a local system dir/file with uid = 0 && euid != 0\n")) - setegid(getgid()); - seteuid(getuid()); - DBG((DBGA,"Set euid %d, egid %d\n",geteuid(),getegid())) + if (setegid(getgid()) || seteuid(getuid())) { + DBG((DBGA,"seteuid or setegid failed\n")) + } else { + DBG((DBGA,"Set euid %d, egid %d\n",geteuid(),getegid())) + } } } #endif /* !NT */ @@ -864,7 +867,7 @@ char *xdg_errstr(xdg_error er) { case xdg_nopath: return "There is no resulting path"; case xdg_mallformed: - return "Malfomed path fount"; + return "Malformed path fount"; default: return "unknown"; } @@ -1031,26 +1034,26 @@ main() { { xdg_data, xdg_user, {"ALLUSERSPROFILE", NULL}, { "XDG_DATA_HOME", "APPDATA", "HOME", "APPDATA", NULL } }, { xdg_conf, xdg_user, {"ALLUSERSPROFILE", NULL}, - { "XDG_CONF_HOME", "APPDATA", "HOME", "APPDATA", NULL } }, + { "XDG_CONFIG_HOME", "APPDATA", "HOME", "APPDATA", NULL } }, { xdg_cache, xdg_user, {NULL, NULL}, { "XDG_CACHE_HOME", "APPDATA", "HOME", "APPDATA", NULL } }, { xdg_data, xdg_local, {NULL, "HOME"}, { "XDG_DATA_DIRS", "ALLUSERSPROFILE", NULL } }, { xdg_conf, xdg_local, {NULL, "HOME"}, - { "XDG_CONF_DIRS", "ALLUSERSPROFILE", NULL } } + { "XDG_CONFIG_DIRS", "ALLUSERSPROFILE", NULL } } }; #else /* Apple, Unix, Default */ testcase cases[5] = { { xdg_data, xdg_user, {NULL, NULL}, { "XDG_DATA_HOME", "HOME", NULL } }, { xdg_conf, xdg_user, {NULL, NULL}, - { "XDG_CONF_HOME", "HOME", NULL } }, + { "XDG_CONFIG_HOME", "HOME", NULL } }, { xdg_cache, xdg_user, {NULL, NULL}, { "XDG_CACHE_HOME", "HOME", NULL } }, { xdg_data, xdg_local, {NULL, "HOME"}, { "XDG_DATA_DIRS", "", NULL } }, { xdg_conf, xdg_local, {NULL, "HOME"}, - { "XDG_CONF_DIRS", "", NULL } } + { "XDG_CONFIG_DIRS", "", NULL } } }; #endif diff --git a/target/Jamfile b/target/Jamfile index 3a3ef28..1ab2da6 100644 --- a/target/Jamfile +++ b/target/Jamfile @@ -28,9 +28,10 @@ Objects alphix.c randix.c ; HDRS += ../plot ../rspl ../cgats ../icc ../gamut ../xicc ../spectro ../render $(TIFFINC) ; LINKLIBS = ../xicc/libxcolorants ../spectro/libconv ../xicc/libxicc ../spectro/libinsttypes + ../spectro/libdisptechs ../gamut/libgamut ../rspl/librspl ../render/librender ../cgats/libcgats - ../plot/libplot ../plot/libvrml ../icc/libicc ../numlib/libnum - $(TIFFLIB) $(JPEGLIB) $(LibWin) ; + ../plot/libplot ../plot/libvrml ../icc/libicc ../numlib/libnum ../numlib/libui + $(TIFFLIB) $(JPEGLIB) $(PNGLIB) $(ZLIB) $(LibWin) ; #target generator @@ -53,9 +54,6 @@ MainVariant ofps : ofps.c : : STANDALONE_TEST ; # Incremental far point class MainVariant ifarp : ifarp.c : : STANDALONE_TEST ; -# Perceptual space simplex lattice -MainVariant ifarp : ifarp.c : : STANDALONE_TEST ; - MainVariant simplat : simplat.c : : STANDALONE_TEST ; # Device space simplex lattice diff --git a/target/ifarp.c b/target/ifarp.c index 7e1117e..544f316 100644 --- a/target/ifarp.c +++ b/target/ifarp.c @@ -62,16 +62,16 @@ #include #endif #ifdef DEBUG -#include "plot.h" +# include "plot.h" +# include "ui.h" #endif #include "numlib.h" #include "sort.h" -#include "plot.h" #include "icc.h" #include "xcolorants.h" #include "targen.h" #include "ifarp.h" -#include "../h/sort.h" /* Heap sort */ +#include "sort.h" /* Heap sort */ #ifdef DEBUG static void dump_image(ifarp *s, int pcp); diff --git a/target/ofps.c b/target/ofps.c index e485035..dfcee2e 100644 --- a/target/ofps.c +++ b/target/ofps.c @@ -23,9 +23,13 @@ when ofps is used to evaluate the point distribution of other distribution algorithms. - There is a bug when the ink limit == dimensions-1 (200% for CMYY), and + There is a bug when the ink limit == dimensions-1 (200% for CMY), and the number of bit mask then exceeds > 32. This is not so +/- 0.2% either side of 200%. + (see "Hack to workaround pathalogical") + + There is a bug for CMYK when the ink limit == 100% + (see "Hack to workaround pathalogical") One way of addressing the performance issues would be to use multiple threads to call dnsq. A pool could be setup, one for each CPU. @@ -68,11 +72,18 @@ /* Failings: + The distribution near the gamut surfaces has a characteristic + "buffer zone" layer that is not very nice. This is because + the surface concentrate the sufrace points forming a "force field". + It would be good to add a tweak factor to reduce this surface "gang effect". + + The initial allocation of points to lower dimension surfaces is a bit haphazard. It would be nice to have some mechanism to add or subtract points to/from lower dimensional surfaces if they were over or under sampled compared to everything else. + While the current algorithm meets many goals, such as minimizing the maximum estimated error from any point in the space to the nearest node, and placing nodes on sub dimensional surfaces with distributions @@ -120,7 +131,6 @@ #include "numlib.h" #include "sort.h" #include "counters.h" -#include "plot.h" #include "icc.h" #include "xicc.h" #include "xcolorants.h" @@ -146,6 +156,9 @@ # define INDEP_SURFACE /* Make surface point distribution and optimization independent */ # undef MAXINDEP_2D /* Limit independent surfaces to 2D */ /* Seems to be best for ink limited devices to #undef ? */ +//# define GAMUT_EDGE_FUDGE 1.5 /* Fudge factor to counteract gamut suface barrier effect */ + // This increases edge point density as a side effect ?? + # define KEEP_SURFACE /* Keep surface points on the surface during opt. */ # define INITIAL_SURFACE_PREF 1.50 /* Extra weighting for surface points at start of seeding */ # define FINAL_SURFACE_PREF 0.80 /* Extra weighting for surface points by end of seeding */ @@ -190,6 +203,9 @@ # define DOOPT /* Do optimization */ # define INDEP_SURFACE /* Make surface point distribution and optimization independent */ # define MAXINDEP_2D /* Limit independent surfaces to 2D */ + +//# define GAMUT_EDGE_FUDGE 1.5 /* Fudge factor to counteract gamut suface barrier effect */ + # define KEEP_SURFACE /* Keep surface points on the surface during opt. */ # define INITIAL_SURFACE_PREF 1.60 /* Extra weighting for surface points at start of seeding */ # define FINAL_SURFACE_PREF 0.80 /* Extra weighting for surface points by end of seeding */ @@ -250,7 +266,7 @@ #define TNPAGRIDMINRES 7 /* Perceptual cache grid min resolution */ #define TNPAGRIDMAXRES 33 /* Perceptual cache grid max resolution */ #undef FORCE_INCREMENTAL /* Force incremental update after itteration */ -#undef FORCE_RESEED /* Force reseed after itteration */ +#define FORCE_RESEED /* Force reseed after itteration */ #define MAXTRIES 41 /* Maximum dnsq tries before giving up */ #define CACHE_PERCEPTUAL /* Cache the perceptual lookup function */ #define USE_DISJOINT_SETMASKS /* Reduce INDEP_SURFACE setmask size */ @@ -276,6 +292,11 @@ # include "conv.h" /* System dependent convenience functions */ #endif +#if defined(DEBUG) || defined(DUMP_PLOT_SEED) || defined(DUMP_PLOT) +# include "plot.h" +# include "ui.h" +#endif + #if defined(DUMP_EPERR) || defined(DUMP_FERR) #include "tiffio.h" struct _vopt_cx; @@ -1797,25 +1818,25 @@ static int checkon_gsurf(ofps *s, double *p, pleq **psp, int nsp) { /* followed by add_node2voronoi() 5%, others <= 1% ] */ #ifdef NEVER /* Allow performance trace on eperr usage */ -static double ofps_comp_eperr(ofps *s, double *pddist, double *v, double *p, double *nv, double *np); -static double ofps_comp_eperr1(ofps *s, double *pddist, double *v, double *p, double *nv, double *np) { - return ofps_comp_eperr(s, pddist, v, p, nv, np); } -static double ofps_comp_eperr2(ofps *s, double *pddist, double *v, double *p, double *nv, double *np) { - return ofps_comp_eperr(s, pddist, v, p, nv, np); } -static double ofps_comp_eperr3(ofps *s, double *pddist, double *v, double *p, double *nv, double *np) { - return ofps_comp_eperr(s, pddist, v, p, nv, np); } -static double ofps_comp_eperr4(ofps *s, double *pddist, double *v, double *p, double *nv, double *np) { - return ofps_comp_eperr(s, pddist, v, p, nv, np); } -static double ofps_comp_eperr5(ofps *s, double *pddist, double *v, double *p, double *nv, double *np) { - return ofps_comp_eperr(s, pddist, v, p, nv, np); } -static double ofps_comp_eperr6(ofps *s, double *pddist, double *v, double *p, double *nv, double *np) { - return ofps_comp_eperr(s, pddist, v, p, nv, np); } -static double ofps_comp_eperr7(ofps *s, double *pddist, double *v, double *p, double *nv, double *np) { - return ofps_comp_eperr(s, pddist, v, p, nv, np); } -static double ofps_comp_eperr8(ofps *s, double *pddist, double *v, double *p, double *nv, double *np) { - return ofps_comp_eperr(s, pddist, v, p, nv, np); } -static double ofps_comp_eperr9(ofps *s, double *pddist, double *v, double *p, double *nv, double *np) { - return ofps_comp_eperr(s, pddist, v, p, nv, np); } +static double ofps_comp_eperr(ofps *s, double *pddist, double *v, double *p, double *nv, double *np, int nsp); +static double ofps_comp_eperr1(ofps *s, double *pddist, double *v, double *p, double *nv, double *np, int nsp) { + return ofps_comp_eperr(s, pddist, v, p, nv, np, nsp); } +static double ofps_comp_eperr2(ofps *s, double *pddist, double *v, double *p, double *nv, double *np, int nsp) { + return ofps_comp_eperr(s, pddist, v, p, nv, np, nsp); } +static double ofps_comp_eperr3(ofps *s, double *pddist, double *v, double *p, double *nv, double *np, int nsp) { + return ofps_comp_eperr(s, pddist, v, p, nv, np, nsp); } +static double ofps_comp_eperr4(ofps *s, double *pddist, double *v, double *p, double *nv, double *np, int nsp) { + return ofps_comp_eperr(s, pddist, v, p, nv, np, nsp); } +static double ofps_comp_eperr5(ofps *s, double *pddist, double *v, double *p, double *nv, double *np, int nsp) { + return ofps_comp_eperr(s, pddist, v, p, nv, np, nsp); } +static double ofps_comp_eperr6(ofps *s, double *pddist, double *v, double *p, double *nv, double *np, int nsp) { + return ofps_comp_eperr(s, pddist, v, p, nv, np, nsp); } +static double ofps_comp_eperr7(ofps *s, double *pddist, double *v, double *p, double *nv, double *np, int nsp) { + return ofps_comp_eperr(s, pddist, v, p, nv, np, nsp); } +static double ofps_comp_eperr8(ofps *s, double *pddist, double *v, double *p, double *nv, double *np, int nsp) { + return ofps_comp_eperr(s, pddist, v, p, nv, np, nsp); } +static double ofps_comp_eperr9(ofps *s, double *pddist, double *v, double *p, double *nv, double *np, int nsp) { + return ofps_comp_eperr(s, pddist, v, p, nv, np, nsp); } #else /* Production code */ #define ofps_comp_eperr1 ofps_comp_eperr #define ofps_comp_eperr2 ofps_comp_eperr @@ -1834,7 +1855,8 @@ static double ofps_comp_eperr( double *v, /* Device perceptual value */ double *p, /* Device sample location to be evaluated */ double *nv, /* Other perceptual value */ - double *np /* Other perceptual value */ + double *np, /* Other sample location value */ + int nsp /* Number of surface planes */ ) { int ii, e, f, di = s->di; int isc; @@ -1895,8 +1917,18 @@ static double ofps_comp_eperr( ddist = sqrt(ddist); pdist = sqrt(pdist); + eperr = s->devd_wght * ddist + s->perc_wght * pdist; +#ifdef GAMUT_EDGE_FUDGE + /* Fudge factor to prevent gap at gamut boundaries */ + if (nsp > 0) { +// int nn; +// for (nn = 0; nn < nsp; nn++) + eperr *= GAMUT_EDGE_FUDGE; + } +#endif /* GAMUT_EDGE_FUDGE */ + //printf("~1 Percept distance = %f, perc error = %f\n",pdist,s->perc_wght * pdist); return eperr; } @@ -1924,9 +1956,8 @@ static void ofps_pn_eperr( } /* Uncertaintly error computed from device and perceptual distance */ - for (ii = 0; ii < nnds; ii++) { - ee[ii] = ofps_comp_eperr1(s, NULL, sv, sp, nds[ii]->v, nds[ii]->p); - } + for (ii = 0; ii < nnds; ii++) + ee[ii] = ofps_comp_eperr1(s, NULL, sv, sp, nds[ii]->v, nds[ii]->p, nds[ii]->nsp); if (ce == NULL) return; @@ -1959,6 +1990,15 @@ static void ofps_pn_eperr( ce[ii] += tt * tt; } ce[ii] = s->curv_wght * sqrt(ce[ii]); +#ifdef GAMUT_EDGE_FUDGE + /* Fudge factor to prevent gap at gamut boundaries */ + if (nds[ii]->nsp > 0) { +// int nn; +// for (nn = 0; nn < nds[ii]->nsp; nn++) + ce[ii] *= GAMUT_EDGE_FUDGE; + } +#endif /* GAMUT_EDGE_FUDGE */ + } } else { for (ii = 0; ii < nnds; ii++) @@ -2093,8 +2133,10 @@ int dnsq_solver( /* Return < 0 on abort */ /* Get eperr at each real node */ ofps_cc_percept(s, sv, x); /* We have to compute it */ - for (k = 0; k < cx->nn; k++) - cee[k] = ofps_comp_eperr2(s, NULL, sv, x, cx->nds[k]->v, cx->nds[k]->p); + for (k = 0; k < cx->nn; k++) { + + cee[k] = ofps_comp_eperr2(s, NULL, sv, x, cx->nds[k]->v, cx->nds[k]->p, cx->nds[k]->nsp); + } //fprintf(stderr,"~1 maxeperr = %f\n",cmax); @@ -2270,7 +2312,7 @@ static int position_vtx( for (i = 0; i < (ii-1); i++) { for (j = i+1; j < ii; j++) { double dist; - dist = ofps_comp_eperr3(s, NULL, cx.nds[i]->v, cx.nds[i]->p, cx.nds[j]->v, cx.nds[j]->p); + dist = ofps_comp_eperr3(s, NULL, cx.nds[i]->v, cx.nds[i]->p, cx.nds[j]->v, cx.nds[j]->p, cx.nds[i]->nsp) ; if (dist < ceperr) { ceperr = dist; bi = i; @@ -2599,7 +2641,7 @@ double powell_solver( /* Return < 0 on abort */ /* Get eperr at each real node */ ofps_cc_percept(s, sv, x); /* We have to compute it */ for (k = 0; k < cx->nn; k++) - cee[k] = ofps_comp_eperr2(s, NULL, sv, x, cx->nds[k]->v, cx->nds[k]->p); + cee[k] = ofps_comp_eperr2(s, NULL, sv, x, cx->nds[k]->v, cx->nds[k]->p, cx->nds[k]->nsp); //fprintf(stderr,"~1 maxeperr = %f\n",cmax); @@ -3644,7 +3686,7 @@ ofps_quick_check_hits(ofps *s) { nvxhits++; } } else { - double eperr = ofps_comp_eperr7(s, NULL, vx->v, vx->p, nn->v, nn->p); + double eperr = ofps_comp_eperr7(s, NULL, vx->v, vx->p, nn->v, nn->p, nn->nsp); /* See if the vertex eperr will be improved */ if (eperr < (vx->eperr + 0.0)) { @@ -3779,7 +3821,7 @@ ofps_check_vtx(ofps *s, node *nn, vtx *vx, int dorec, int beyhit) { } else { /* Node rather than boundary plane */ /* nba_eperr is assumed to be valid if vx->cflag == s->flag */ - vx->nba_eperr = ofps_comp_eperr7(s, NULL, vx->v, vx->p, nn->v, nn->p); + vx->nba_eperr = ofps_comp_eperr7(s, NULL, vx->v, vx->p, nn->v, nn->p, nn->nsp); #ifdef DEBUG printf("%d: Computing nba_eperr of %f for vtx no %d\n",dist, vx->nba_eperr, vx->no); #endif @@ -3968,7 +4010,7 @@ ofps_check_vtx_sanity(ofps *s, node *nn, vtx *vx, int fixit) { } else { /* Node rather than boundary plane */ double nba_eperr; - nba_eperr = ofps_comp_eperr7(s, NULL, vx->v, vx->p, nn->v, nn->p); + nba_eperr = ofps_comp_eperr7(s, NULL, vx->v, vx->p, nn->v, nn->p, nn->nsp); /* See if the vertex eperr will be improved */ if (!par && (vx->eperr - nba_eperr) > tol) { @@ -5120,7 +5162,7 @@ ofps_init_acc2(ofps *s) { np = &s->_grid[i + j]; /* eperr from that corner to center of this cell */ - eperr = ofps_comp_eperr(s, NULL, cp->cv, cp->cp, np->v, np->p); + eperr = ofps_comp_eperr(s, NULL, cp->cv, cp->cp, np->v, np->p, 0); eperr_avg += eperr; if (eperr > eperr_max) eperr_max = eperr; @@ -5166,7 +5208,7 @@ ofps_init_acc2(ofps *s) { /* Compose new center point from weighted corner points. */ /* Weighting is proportional to eperr value */ - eperr = ofps_comp_eperr(s, NULL, cp->cv, cp->cp, np->v, np->p); + eperr = ofps_comp_eperr(s, NULL, cp->cv, cp->cp, np->v, np->p, 0); if (eperr < eperr_avg) { /* Move away from corner */ @@ -5272,7 +5314,7 @@ ofps_add_nacc(ofps *s, node *n) { double eperr; /* Check that the eperr to the center of the cell */ /* is less than the worst case for that cell */ - eperr = ofps_comp_eperr(s, NULL, cp->cv, cp->cp, n->v, n->p); + eperr = ofps_comp_eperr(s, NULL, cp->cv, cp->cp, n->v, n->p, n->nsp); if (eperr > cp->eperr) { warning("Sanity check ofps_add_nacc() node ix %d eperr %f > cell eperr %f",n->ix,eperr,cp->eperr); printf("Sanity check ofps_add_nacc() node ix %d eperr %f > cell eperr %f\n",n->ix,eperr,cp->eperr); @@ -5337,7 +5379,7 @@ ofps_add_vacc(ofps *s, vtx *vx) { p[e] = 1.0; } ofps_cc_percept(s, v, p); - eperr = ofps_comp_eperr(s, NULL, cp->cv, cp->cp, v, p); + eperr = ofps_comp_eperr(s, NULL, cp->cv, cp->cp, v, p, 0); if (eperr > cp->eperr) { @@ -5914,9 +5956,10 @@ ofps_seed(ofps *s) { } /* Suceeded in adding the point */ - if (p->fx) { /* Fixed point */ + if (p->fx) { /* Fixed point was added */ fc++; - dofixed--; + if (dofixed > 0) /* May not have been triggered by dofixed */ + dofixed--; if ((s->fnp - fc) >= (s->tinp - i - 1)) { /* No room for moveable points */ dofixed = s->fnp - fc; /* Do all the fixed */ } @@ -6168,7 +6211,7 @@ static int ofps_findhit_vtxs(ofps *s, node *nn) { /* Compute the smallest eperr possible in this cell, by computing the */ /* eperr of the cell center to the node minus the estimated */ /* largest eperr of any point within the cell to the center. */ - ceperr = ofps_comp_eperr(s, NULL, cp->v, cp->p, nn->v, nn->p); + ceperr = ofps_comp_eperr(s, NULL, cp->v, cp->p, nn->v, nn->p, nn->nsp); eperr = ceperr - cp->eperr; //printf("~1 ceperr %f, cp->eperr %f, eperr %f, beperr %f\n",ceperr,cp->eperr,eperr,beperr); @@ -6196,7 +6239,7 @@ static int ofps_findhit_vtxs(ofps *s, node *nn) { par = 1; } - eperr = ofps_comp_eperr7(s, NULL, vx->v, vx->p, nn->v, nn->p); + eperr = ofps_comp_eperr7(s, NULL, vx->v, vx->p, nn->v, nn->p, nn->nsp); if (!par && (vx->eperr - eperr) > 0.0) { //printf("~1 Node ix %d at %s (%s)\n Cell ix %d co %s center %s (%s),\n vtx no %d at %s (%s)\n",nn->ix, ppos(di,nn->p),ppos(di,nn->v),cp - s->grid,pco(s->di,cp->co),ppos(di,cp->cp),ppos(di,cp->cv),vx->no, ppos(di,vx->p),ppos(di,vx->v)); @@ -6262,7 +6305,7 @@ static int ofps_findhit_vtxs(ofps *s, node *nn) { } /* nba_eperr is assumed to be valid if vx->cflag == s->flag */ - vx->nba_eperr = ofps_comp_eperr7(s, NULL, vx->v, vx->p, nn->v, nn->p); + vx->nba_eperr = ofps_comp_eperr7(s, NULL, vx->v, vx->p, nn->v, nn->p, nn->nsp); #ifdef DEBUG printf("Computing nba_eperr of %f for vtx no %d\n",vx->nba_eperr, vx->no); #endif @@ -6401,7 +6444,7 @@ static node *ofps_findclosest_node(ofps *s, double *ceperr, vtx *vx) { /* Compute the eperr of the cell center to the vtx minus the estimated */ /* largest eperr of any point within the cell to the center. */ - ceperr = ofps_comp_eperr(s, NULL, cp->v, cp->p, vx->v, vx->p); + ceperr = ofps_comp_eperr(s, NULL, cp->v, cp->p, vx->v, vx->p, vx->nsp); eperr = ceperr - cp->eperr; /* If the cell is worth searching */ @@ -6421,7 +6464,7 @@ static node *ofps_findclosest_node(ofps *s, double *ceperr, vtx *vx) { #endif /* INDEP_SURFACE */ /* Compute the eperr between the node to the new vtx */ - eperr = ofps_comp_eperr(s, NULL, no->v, no->p, vx->v, vx->p); + eperr = ofps_comp_eperr(s, NULL, no->v, no->p, vx->v, vx->p, vx->nsp); if (eperr < beperr) { bno = no; beperr = eperr; @@ -6475,7 +6518,7 @@ static node *ofps_findclosest_node(ofps *s, double *ceperr, vtx *vx) { #endif /* INDEP_SURFACE */ /* Compute the eperr between the node to the new vtx */ - teperr = ofps_comp_eperr(s, NULL, no->v, no->p, vx->v, vx->p); + teperr = ofps_comp_eperr(s, NULL, no->v, no->p, vx->v, vx->p, vx->nsp); if (teperr < beperr) { warning("Sanity check ofps_findclosest_node() cell skip failed, estimated %f from cellc eperr %f - cell eperr %f, found %f from node ix %d",eperr,ceperr,cp->eperr,teperr,no->ix); printf("Sanity check ofps_findclosest_node() cell skip failed, estimated %f from cellc eperr %f - cell eperr %f, found %f from node ix %d\n",eperr,ceperr,cp->eperr,teperr,no->ix); @@ -6520,7 +6563,7 @@ static node *ofps_findclosest_node(ofps *s, double *ceperr, vtx *vx) { #endif /* INDEP_SURFACE */ /* Compute the eperr between the node and the vertex */ - eperr = ofps_comp_eperr(s, NULL, nn->v, nn->p, vx->v, vx->p); + eperr = ofps_comp_eperr(s, NULL, nn->v, nn->p, vx->v, vx->p, vx->nsp); if (eperr < ch_beperr) { ch_bno = nn; ch_beperr = eperr; @@ -6614,7 +6657,7 @@ static vtx *ofps_findclosest_vtx(ofps *s, double *ceperr, node *nn) { /* Compute the eperr of the cell center to the node minus the estimated */ /* largest eperr of any point within the cell to the center. */ - ceperr = ofps_comp_eperr(s, NULL, cp->v, cp->p, nn->v, nn->p); + ceperr = ofps_comp_eperr(s, NULL, cp->v, cp->p, nn->v, nn->p, nn->nsp); eperr = ceperr - cp->eperr; /* If the cell is worth searching */ @@ -6634,7 +6677,7 @@ static vtx *ofps_findclosest_vtx(ofps *s, double *ceperr, node *nn) { #endif /* INDEP_SURFACE */ /* Compute the eperr between the vertex to the new node */ - eperr = ofps_comp_eperr(s, NULL, vx->v, vx->p, nn->v, nn->p); + eperr = ofps_comp_eperr(s, NULL, vx->v, vx->p, nn->v, nn->p, nn->nsp); if (eperr < beperr) { bvx = vx; beperr = eperr; @@ -6683,7 +6726,7 @@ static vtx *ofps_findclosest_vtx(ofps *s, double *ceperr, node *nn) { #endif /* INDEP_SURFACE */ /* Compute the eperr between the vertex to the new node */ - teperr = ofps_comp_eperr(s, NULL, vx->v, vx->p, nn->v, nn->p); + teperr = ofps_comp_eperr(s, NULL, vx->v, vx->p, nn->v, nn->p, nn->nsp); if (teperr < beperr) { warning("Sanity check ofps_findclosest_vtx() cell skip failed, estimated %f from cellc eperr %f - cell eperr %f, found %f from vtx no %d",eperr,ceperr,cp->eperr,teperr,vx->no); printf("Sanity check ofps_findclosest_vtx() cell skip failed, estimated %f from cellc eperr %f - cell eperr %f, found %f from vtx no %d\n",eperr,ceperr,cp->eperr,teperr,vx->no); @@ -6727,7 +6770,7 @@ static vtx *ofps_findclosest_vtx(ofps *s, double *ceperr, node *nn) { #endif /* INDEP_SURFACE */ /* Compute the eperr between the vertex to the new node */ - eperr = ofps_comp_eperr(s, NULL, vx->v, vx->p, nn->v, nn->p); + eperr = ofps_comp_eperr(s, NULL, vx->v, vx->p, nn->v, nn->p, nn->nsp); if (eperr < ch_beperr) { ch_bvx = vx; ch_beperr = eperr; @@ -6833,7 +6876,7 @@ static vtx *ofps_findhit_vtx(ofps *s, double *ceperr, node *nn) { #endif /* INDEP_SURFACE */ /* Compute the eperr between the vertex to the new node */ - eperr = ofps_comp_eperr(s, NULL, vx->v, vx->p, nn->v, nn->p); + eperr = ofps_comp_eperr(s, NULL, vx->v, vx->p, nn->v, nn->p, nn->nsp); if (eperr < vx->eperr) { bvx = vx; beperr = eperr; @@ -7297,8 +7340,8 @@ int dnsq_mid_solver( /* Return < 0 on abort */ ofps_cc_percept(s, sv, pos); /* Get eperr */ - cee[0] = ofps_comp_eperr8(s, NULL, sv, pos, cx->nds[0]->v, cx->nds[0]->p); - cee[1] = ofps_comp_eperr8(s, NULL, sv, pos, cx->nds[1]->v, cx->nds[1]->p); + cee[0] = ofps_comp_eperr8(s, NULL, sv, pos, cx->nds[0]->v, cx->nds[0]->p, cx->nds[0]->nsp); + cee[1] = ofps_comp_eperr8(s, NULL, sv, pos, cx->nds[1]->v, cx->nds[1]->p, cx->nds[1]->nsp); //printf("~1 error = %f, %f", cee[0], cee[1]); @@ -8063,6 +8106,11 @@ int nopstop /* Debug - number of optimizations until diagnostic stop, -1 = no && ilimit <= (di-2.0 + 2 * ILIMITEPS)) ilimit = di-2.0 - 2 * ILIMITEPS; + /* Hack to workaround pathalogical case. At ilimit == 100% we get a failure */ + /* to add any variable steps */ + if (ilimit > 0.9999 && ilimit < 1.0001) + ilimit = 0.9999; + s->ilimit = ilimit; for (e = 0; e < di; e++) { @@ -8697,7 +8745,7 @@ dump_image( mcols[n3].rgb[1] = 0.85; mcols[n3].rgb[2] = 0.85; - sprintf(mtext[n3],""); + sprintf(mtext[n3],"%s",""); sprintf(mtext[n3],"%d",mp->no); // sprintf(mtext[n3],"%d",(int)(mp->eserr + 0.5)); } @@ -8781,7 +8829,7 @@ dump_image( mcols[n3].rgb[1] = 0.59; mcols[n3].rgb[2] = 0.0; - sprintf(mtext[n3],""); + sprintf(mtext[n3],"%s",""); } } } @@ -8851,7 +8899,7 @@ dump_image( for (i = 0; i < s->np; i++) { node *np = s->n[i]; - eserr = ofps_comp_eperr9(s, NULL, vpos, pos, np->v, np->p); + eserr = ofps_comp_eperr9(s, NULL, vpos, pos, np->v, np->p, np->nsp); if (eserr < beserr) beserr = eserr; } @@ -9201,7 +9249,7 @@ static void check_for_missing_vertexes(ofps *s) { continue; /* Is a parent */ nn = s->n[ix]; - eperr = ofps_comp_eperr(s, NULL, nn->v, nn->p, vv.v, vv.p); + eperr = ofps_comp_eperr(s, NULL, nn->v, nn->p, vv.v, vv.p, 0); printf(" eperr to ix %d is %f\n",nn->ix,eperr); if (eperr < vv.eperr) { diff --git a/target/ppoint.c b/target/ppoint.c index 2a5dd26..217b1e9 100644 --- a/target/ppoint.c +++ b/target/ppoint.c @@ -37,11 +37,14 @@ #include "numlib.h" #include "rspl.h" #include "sort.h" -#include "plot.h" #include "icc.h" #include "xcolorants.h" #include "targen.h" #include "ppoint.h" +#ifdef DUMP_PLOT +# include "plot.h" +# include "ui.h" +#endif #undef DEBUG #define DUMP_PLOT /* Show on screen plot */ diff --git a/target/prand.c b/target/prand.c index 927243a..7ce5760 100644 --- a/target/prand.c +++ b/target/prand.c @@ -26,12 +26,8 @@ #if defined(__IBMC__) #include #endif -#ifdef DEBUG -#include "plot.h" -#endif #include "numlib.h" #include "sort.h" -#include "plot.h" #include "icc.h" #include "xicc.h" #include "xcolorants.h" diff --git a/target/printtarg.c b/target/printtarg.c index 3ad3023..313f8d1 100644 --- a/target/printtarg.c +++ b/target/printtarg.c @@ -17,6 +17,12 @@ TTBD: + Add option to return the number of patches that will + exactly fit the given number of pages. + + Add optional device link processing support (same slot + as -K file.cal) to permit a smoother proofing verification workflow. + Add independent w & h patch scaling option. Allow scaling minimum leading/trailing white space. @@ -135,6 +141,7 @@ #include "alphix.h" #include "rspl.h" #include "sort.h" +#include "ui.h" #include @@ -907,7 +914,7 @@ static void tiff_del(trend *ss) { tiff_trend *s = (tiff_trend *)ss; if (s->r != NULL) { - s->r->write(s->r, s->fname, s->comp); + s->r->write(s->r, s->fname, s->comp, NULL, NULL, tiff_file); s->r->del(s->r); } if (s->fname != NULL) @@ -925,7 +932,7 @@ static trend *new_tiff_trend( int altrep, /* printer grey/CMY representation type 0..8 */ int ncha, /* flag, use nchannel alpha */ int comp, /* flag, use compression */ - int dith /* flag, use 8 bit dithering */ + int dith /* flag, 1 = use 8 bit stocastic dithering */ ) { tiff_trend *s; color2d c; /* Background color */ @@ -1014,11 +1021,11 @@ static trend *new_tiff_trend( else ma[0] = ma[1] = ma[2] = ma[3] = 0; - if ((s->r = new_render2d(pw, ph, ma, hres, vres, csp, nc, dpth, dith)) == NULL) { + if ((s->r = new_render2d(pw, ph, ma, hres, vres, csp, nc, dpth, dith, NULL, NULL)) == NULL) { error("Failed to create a render2d object for tiff output"); } - /* We're goin to assume this is all printed output, so */ + /* We're going to assume this is all printed output, so */ /* the background should be white. */ if ((nmask & ICX_ADDITIVE) || (nmask == ICX_CMY && altrep == 7)) { /* CMY as inverted RGB */ @@ -2907,7 +2914,7 @@ void usage(char *diag, ...) { fprintf(stderr," -f Create PostScript DeviceN Color fallback\n"); fprintf(stderr," -w g|r|s|n White colorspace encoding DeviceGray (def), DeviceRGB, Separation or DeviceN\n"); fprintf(stderr," -k g|c|s|n Black colorspace encoding DeviceGray (def), DeviceCMYK, Separation or DeviceN\n"); - fprintf(stderr," -o k|r|n CMY colorspace encoding DefiveCMYK (def), inverted DeviceRGB or DeviceN\n"); + fprintf(stderr," -o k|r|n CMY colorspace encoding DeviceCMYK (def), inverted DeviceRGB or DeviceN\n"); fprintf(stderr," -e Output EPS compatible file\n"); fprintf(stderr," -t [res] Output 8 bit TIFF raster file, optional res DPI (default 100)\n"); fprintf(stderr," -T [res] Output 16 bit TIFF raster file, optional res DPI (default 100)\n"); diff --git a/target/simdlat.c b/target/simdlat.c index c5edf36..50f159b 100644 --- a/target/simdlat.c +++ b/target/simdlat.c @@ -41,12 +41,12 @@ #if defined(__IBMC__) #include #endif -#ifdef DEBUG -#include "plot.h" +#if defined(DEBUG) || defined(DUMP_PLOT) +# include "plot.h" +# include "ui.h" #endif #include "numlib.h" #include "sort.h" -#include "plot.h" #include "icc.h" #include "xcolorants.h" #include "targen.h" diff --git a/target/simplat.c b/target/simplat.c index 736b0e8..e738ff7 100644 --- a/target/simplat.c +++ b/target/simplat.c @@ -41,12 +41,12 @@ #if defined(__IBMC__) #include #endif -#ifdef DEBUG -#include "plot.h" +#if defined(DEBUG) || defined(DUMP_PLOT) +# include "plot.h" +# include "ui.h" #endif #include "numlib.h" #include "sort.h" -#include "plot.h" #include "icc.h" #include "xcolorants.h" #include "targen.h" diff --git a/target/targen.c b/target/targen.c index c868dc4..4d1d7ac 100644 --- a/target/targen.c +++ b/target/targen.c @@ -35,6 +35,10 @@ Using adaptive patch creation for grey colorspace is broken. This should be fixed. + Would be nice to have a generator of "well behaved" device + gamut surface points. Would need a way of creating + a gamut surface from the .ti3 file though. + */ /* NOTE: @@ -101,7 +105,7 @@ #undef DEBUG -#define VRML_DIAG /* Enable option to dump a VRML of the resulting full spread points */ +#define VRML_DIAG /* Enable option to dump a VRML/X3D of the resulting full spread points */ #undef ADDRECCLIPPOINTS /* Add ink limited clipping points to regular grid */ #define EMPH_NEUTRAL /* Emphasise neutral axis, like CIE94 does */ #define NEMPH_DEFAULT 0.5 /* Default neutral axis emphasis == 2 x CIE94 */ @@ -112,10 +116,14 @@ #define MATCH_TOLL 1e-3 /* Tollerance of device value to consider a patch a duplicate */ /* Display rise and fall time delay model. This is CRT like */ -#define DISPLAY_RISE_TIME 0.03 /* Assumed rise time to 90% of target level */ -#define DISPLAY_FALL_TIME 0.12 /* Assumed fall time to 90% of target level */ -#define DISPLAY_SETTLE_AIM 0.01 /* Aim for 1% of true level */ -#define DISPLAY_ABS_AIM 0.0001 /* Aim for .01% of true absolute level */ +#define DISPLAY_RISE_TIME DISPTECH_WORST_RISE /* Assumed rise time to 90% of target level */ +#define DISPLAY_FALL_TIME DISPTECH_WORST_FALL /* Assumed fall time to 90% of target level */ +#define DISPLAY_SETTLE_AIM 0.1 /* Aim for 0.2 Delta E */ + +#ifdef NEVER /* Old delay time code */ +#define DISPLAY_SETTLE_AIM2 0.01 /* Aim for 1% of true level */ +#define DISPLAY_ABS_AIM2 0.0001 /* Aim for .01% of true absolute level */ +#endif #include #include @@ -131,6 +139,7 @@ #include "cgats.h" #include "icc.h" #include "xicc.h" +#include "disptechs.h" #include "targen.h" //#include "ppoint.h" #include "ofps.h" @@ -138,6 +147,7 @@ #include "simplat.h" #include "simdlat.h" #include "prand.h" +#include "ui.h" #include @@ -174,7 +184,7 @@ struct _pcpt { /* Tuning parameters */ double nemph; /* neutral emphasis, 0.0 - 1.0. Default 0.35 for == CIE94 */ - double idemph; /* inv. dark emphasis, 1.0 - 4.0. Default 1.0 == none */ + double idemph; /* inv. of dark emphasis, 1.0 - 4.0. Default 1.0 == none */ double ixpow; /* inv. extra power Default 1.0 == none */ /* ICC profile based */ @@ -233,7 +243,7 @@ pcpt_to_XYZ(pcpt *s, double *out, double *in) { /* Relative Lab conversion function */ /* Internal device values 0.0 - 1.0 are converted into Lab values */ -/* (Used for VRML visualisation checking) */ +/* (Used for VRML/X3D visualisation checking) */ static void pcpt_to_rLab(pcpt *s, double *out, double *in) { int e; @@ -663,7 +673,7 @@ double xpow /* Extra device power, default = none */ if (demph < 0.0) demph = DEMPH_DEFAULT; - s->idemph = demph; + s->idemph = 1.0/demph; if (xpow < 0.0) xpow = XPOW_DEFAULT; @@ -866,9 +876,10 @@ usage(int level, char *diag, ...) { fprintf(stderr," -N nemphasis Degree of neutral axis patch concentration 0.0-1.0 (default %.2f)\n",NEMPH_DEFAULT); fprintf(stderr," -V demphasis Degree of dark region patch concentration 1.0-4.0 (default %.2f = none)\n",DEMPH_DEFAULT); fprintf(stderr," -F L,a,b,rad Filter out samples outside Lab sphere.\n"); + fprintf(stderr," -O Don't re-order display RGB patches for minimum delay\n"); #ifdef VRML_DIAG - fprintf(stderr," -w Dump diagnostic outfilel.wrl file (Lab locations)\n"); - fprintf(stderr," -W Dump diagnostic outfiled.wrl file (Device locations)\n"); + fprintf(stderr," -w Dump diagnostic outfilel%s file (Lab locations)\n",vrml_ext()); + fprintf(stderr," -W Dump diagnostic outfiled%s file (Device locations)\n",vrml_ext()); #endif /* VRML_DIAG */ fprintf(stderr," outfile Base name for output(.ti1)\n"); exit(1); @@ -894,6 +905,7 @@ int dofilt( return 0; } + static double disprespt(cgats *pp, int p1, int p2); int main(int argc, char *argv[]) { @@ -901,18 +913,18 @@ int main(int argc, char *argv[]) { int fa, nfa, mfa; /* current argument we're looking at */ int verb = 0; /* Verbose flag */ #ifdef VRML_DIAG - int dumpvrml = 0; /* Dump diagnostic .wrl file */ + int dumpvrml = 0; /* Dump diagnostic VRML/X3D file */ #endif /* VRML_DIAG */ inkmask xmask = 0; /* External ink mask combination */ inkmask nmask = 0; /* Working ink mask combination (ie. CMY for printer external sRGB) */ int di = 0; /* Output dimensions */ char *ident; /* Ink combination identifier (includes possible leading 'i') */ int good = 0; /* 0 - fast, 1 = good */ - int esteps = 4; /* White color patches */ + int esteps = -1; /* White color patches */ int Bsteps = -1; /* Black color patches */ int ssteps = -1; /* Single channel steps */ double xpow = 1.0; /* Power to apply to all device values created */ - int gsteps = 0; /* Composite grey wedge steps */ + int gsteps = -1; /* Composite grey wedge steps */ int msteps = 0; /* Regular grid multidimensional steps */ int bsteps = 0; /* Regular body centered cubic grid multidimensional steps */ int fsteps = -1; /* Fitted Multidimensional patches */ @@ -929,12 +941,13 @@ int main(int argc, char *argv[]) { double uilimit = -1.0; /* Underlying (pre-calibration, scale 1.0) ink limit */ double nemph = NEMPH_DEFAULT; double demph = DEMPH_DEFAULT; + int dontreorder = 0; /* Don't re-order RGB display patches for min delay */ int filter = 0; /* Filter values */ double filt[4] = { 50,0,0,0 }; static char fname[MAXNAMEL+1] = { 0 }; /* Output file base name */ static char pname[MAXNAMEL+1] = { 0 }; /* Device profile name */ - static char wdname[MAXNAMEL+1] = { 0 }; /* Device diagnostic .wrl name */ - static char wlname[MAXNAMEL+1] = { 0 }; /* Lab diagnostic .wrl name */ + static char wdname[MAXNAMEL+1] = { 0 }; /* Device diagnostic .wrl/.x3d name */ + static char wlname[MAXNAMEL+1] = { 0 }; /* Lab diagnostic .wrl/.x3d name */ char buf[500]; /* Genaral use text buffer */ int id = 1; /* Sample ID */ time_t clk = time(0); @@ -1213,6 +1226,11 @@ int main(int argc, char *argv[]) { fa = nfa; } + /* Don't re-order RGB display patches for best speed */ + else if (argv[fa][1] == 'O') { + dontreorder = 1; + } + #ifdef VRML_DIAG else if (argv[fa][1] == 'w') /* Lab */ dumpvrml |= 1; @@ -1232,10 +1250,10 @@ int main(int argc, char *argv[]) { strcat(fname,".ti1"); strncpy(wdname,argv[fa],MAXNAMEL-5); wdname[MAXNAMEL-5] = '\000'; - strcat(wdname,"d.wrl"); + strcat(wdname,"d"); strncpy(wlname,argv[fa],MAXNAMEL-5); wlname[MAXNAMEL-5] = '\000'; - strcat(wlname,"l.wrl"); + strcat(wlname,"l"); /* Set default colorant combination as CMYK */ if (xmask == 0) @@ -1256,6 +1274,11 @@ int main(int argc, char *argv[]) { stime = clock(); /* Implement some defaults */ + if (esteps < 0) + esteps = 4; + if (gsteps < 0) + gsteps = 0; + if (Bsteps < 0) { if (xmask == ICX_W || xmask == ICX_K || xmask == ICX_RGB || xmask == ICX_IRGB) Bsteps = 4; @@ -1284,158 +1307,158 @@ int main(int argc, char *argv[]) { gsteps = 0; } } else if (di == 3) { - if (ssteps == 0 && fsteps == 0 && msteps == 0 && bsteps == 0 && gsteps == 0) - error ("Must have some single or multi dimensional RGB or CMY steps"); - } else { - if (ssteps == 0 && fsteps == 0 && msteps == 0 && bsteps == 0 && gsteps == 0) - error ("Must have some single or multi dimensional steps"); - } + if (ssteps == 0 && fsteps == 0 && msteps == 0 && bsteps == 0 && gsteps == 0) + error ("Must have some single or multi dimensional RGB or CMY steps"); + } else { + if (ssteps == 0 && fsteps == 0 && msteps == 0 && bsteps == 0 && gsteps == 0) + error ("Must have some single or multi dimensional steps"); + } - /* Deal with ICC, MPP or fallback profile */ - if ((pdata = new_pcpt(pname, xmask, nmask, &ilimit, &uilimit, nemph, demph, xpow)) == NULL) { - error("Perceptual lookup object creation failed"); - } + /* Deal with ICC, MPP or fallback profile */ + if ((pdata = new_pcpt(pname, xmask, nmask, &ilimit, &uilimit, nemph, demph, xpow)) == NULL) { + error("Perceptual lookup object creation failed"); + } - /* Set default adapation level */ - if (dadapt < -1.5) { /* Not set by user */ - if (pname[0] != '\000') - dadapt = 1.0; - else - dadapt = 0.1; - } + /* Set default adapation level */ + if (dadapt < -1.5) { /* Not set by user */ + if (pname[0] != '\000') + dadapt = 1.0; + else + dadapt = 0.1; + } - if (verb) { - printf("%s test chart\n",ident); - - if (esteps > 0) - printf("White patches = %d\n",esteps); - if (Bsteps > 0) - printf("Black patches = %d\n",Bsteps); - if (ssteps > 0) - printf("Single channel steps = %d\n",ssteps); - if (gsteps > 0) - printf("Compostie Grey steps = %d\n",gsteps); - if (fsteps > 0) - printf("Full spread patches = %d\n",fsteps); - if (msteps > 0) - printf("Multi-dimention cube steps = %d\n",msteps); - if (bsteps > 0) - printf("Multi-dimention body centered cube steps = %d\n",bsteps); - if (ilimit >= 0.0) - printf("Ink limit = %.1f%% (underlying %.1f%%)\n",ilimit * 100.0, uilimit * 100.0); - if (filter) { - printf("Filtering out samples outside sphere at %f %f %f radius %f\n", - filt[0], filt[1], filt[2], filt[3]); + if (verb) { + printf("%s test chart\n",ident); + + if (esteps > 0) + printf("White patches = %d\n",esteps); + if (Bsteps > 0) + printf("Black patches = %d\n",Bsteps); + if (ssteps > 0) + printf("Single channel steps = %d\n",ssteps); + if (gsteps > 0) + printf("Compostie Grey steps = %d\n",gsteps); + if (fsteps > 0) + printf("Full spread patches = %d\n",fsteps); + if (msteps > 0) + printf("Multi-dimention cube steps = %d\n",msteps); + if (bsteps > 0) + printf("Multi-dimention body centered cube steps = %d\n",bsteps); + if (ilimit >= 0.0) + printf("Ink limit = %.1f%% (underlying %.1f%%)\n",ilimit * 100.0, uilimit * 100.0); + if (filter) { + printf("Filtering out samples outside sphere at %f %f %f radius %f\n", + filt[0], filt[1], filt[2], filt[3]); + } } - } - pp = new_cgats(); /* Create a CGATS structure */ - pp->add_other(pp, "CTI1"); /* our special type is Calibration Target Information 1 */ - - pp->add_table(pp, tt_other, 0); /* Add the first table for target points */ - pp->add_table(pp, tt_other, 0); /* Add the second table for density pre-defined device values */ - pp->add_table(pp, tt_other, 0); /* Add the second table for device pre-defined device values */ - pp->add_kword(pp, 0, "DESCRIPTOR", "Argyll Calibration Target chart information 1",NULL); - pp->add_kword(pp, 1, "DESCRIPTOR", "Argyll Calibration Target chart information 1",NULL); - pp->add_kword(pp, 2, "DESCRIPTOR", "Argyll Calibration Target chart information 1",NULL); - pp->add_kword(pp, 0, "ORIGINATOR", "Argyll targen", NULL); - pp->add_kword(pp, 1, "ORIGINATOR", "Argyll targen", NULL); - pp->add_kword(pp, 2, "ORIGINATOR", "Argyll targen", NULL); - atm[strlen(atm)-1] = '\000'; /* Remove \n from end */ - pp->add_kword(pp, 0, "CREATED",atm, NULL); - - /* Make available the aproximate white point to allow relative */ - /* interpretation of the aproximate XYZ values */ - { - int e; - double val[MXTD], XYZ[3]; + pp = new_cgats(); /* Create a CGATS structure */ + pp->add_other(pp, "CTI1"); /* our special type is Calibration Target Information 1 */ + + pp->add_table(pp, tt_other, 0); /* Add the first table for target points */ + pp->add_table(pp, tt_other, 0); /* Add the second table for density pre-defined device values */ + pp->add_table(pp, tt_other, 0); /* Add the second table for device pre-defined device values */ + pp->add_kword(pp, 0, "DESCRIPTOR", "Argyll Calibration Target chart information 1",NULL); + pp->add_kword(pp, 1, "DESCRIPTOR", "Argyll Calibration Target chart information 1",NULL); + pp->add_kword(pp, 2, "DESCRIPTOR", "Argyll Calibration Target chart information 1",NULL); + pp->add_kword(pp, 0, "ORIGINATOR", "Argyll targen", NULL); + pp->add_kword(pp, 1, "ORIGINATOR", "Argyll targen", NULL); + pp->add_kword(pp, 2, "ORIGINATOR", "Argyll targen", NULL); + atm[strlen(atm)-1] = '\000'; /* Remove \n from end */ + pp->add_kword(pp, 0, "CREATED",atm, NULL); + + /* Make available the aproximate white point to allow relative */ + /* interpretation of the aproximate XYZ values */ + { + int e; + double val[MXTD], XYZ[3]; - /* Setup device white */ - if (nmask & ICX_ADDITIVE) - for (e = 0; e < di; e++) - val[e] = 1.0; - else - for (e = 0; e < di; e++) - val[e] = 0.0; - pdata->dev_to_XYZ(pdata, XYZ, val); /* Lookup white XYZ */ + /* Setup device white */ + if (nmask & ICX_ADDITIVE) + for (e = 0; e < di; e++) + val[e] = 1.0; + else + for (e = 0; e < di; e++) + val[e] = 0.0; + pdata->dev_to_XYZ(pdata, XYZ, val); /* Lookup white XYZ */ - sprintf(buf,"%f %f %f", 100.0 * XYZ[0], 100.0 * XYZ[1], 100.0 * XYZ[2]); - pp->add_kword(pp, 0, "APPROX_WHITE_POINT", buf, NULL); - } + sprintf(buf,"%f %f %f", 100.0 * XYZ[0], 100.0 * XYZ[1], 100.0 * XYZ[2]); + pp->add_kword(pp, 0, "APPROX_WHITE_POINT", buf, NULL); + } - pp->add_field(pp, 0, "SAMPLE_ID", cs_t); - pp->add_field(pp, 1, "INDEX", i_t); /* Index no. 0..7 in second table */ - pp->add_field(pp, 2, "INDEX", i_t); /* Index no. 0..7 in third table */ + pp->add_field(pp, 0, "SAMPLE_ID", cs_t); + pp->add_field(pp, 1, "INDEX", i_t); /* Index no. 0..7 in second table */ + pp->add_field(pp, 2, "INDEX", i_t); /* Index no. 0..7 in third table */ - /* Setup CGATS fields */ - { - int j; - char c_ilimit[20]; - char *bident = icx_inkmask2char(xmask, 0); + /* Setup CGATS fields */ + { + int j; + char c_ilimit[20]; + char *bident = icx_inkmask2char(xmask, 0); - for (j = 0; j < di; j++) { - int imask; - char fname[100]; + for (j = 0; j < di; j++) { + int imask; + char fname[100]; - imask = icx_index2ink(xmask, j); - sprintf(fname,"%s_%s",nmask == ICX_W || nmask == ICX_K ? "GRAY" : bident, - icx_ink2char(imask)); + imask = icx_index2ink(xmask, j); + sprintf(fname,"%s_%s",nmask == ICX_W || nmask == ICX_K ? "GRAY" : bident, + icx_ink2char(imask)); - pp->add_field(pp, 0, fname, r_t); - pp->add_field(pp, 1, fname, r_t); - pp->add_field(pp, 2, fname, r_t); - } + pp->add_field(pp, 0, fname, r_t); + pp->add_field(pp, 1, fname, r_t); + pp->add_field(pp, 2, fname, r_t); + } - pp->add_kword(pp, 0, "COLOR_REP", ident, NULL); + pp->add_kword(pp, 0, "COLOR_REP", ident, NULL); - if (ilimit >= 0.0) { - sprintf(c_ilimit,"%5.1f",ilimit * 100.0); - pp->add_kword(pp, 0, "TOTAL_INK_LIMIT", c_ilimit, NULL); + if (ilimit >= 0.0) { + sprintf(c_ilimit,"%5.1f",ilimit * 100.0); + pp->add_kword(pp, 0, "TOTAL_INK_LIMIT", c_ilimit, NULL); + } + free(bident); } - free(bident); - } - /* ilimit is assumed to be in a valid range from here on */ - if (ilimit < 0.0) { - uilimit = ilimit = di; /* default is no limit */ - } + /* ilimit is assumed to be in a valid range from here on */ + if (ilimit < 0.0) { + uilimit = ilimit = di; /* default is no limit */ + } - /* Add expected XYZ values to aid previews, scan recognition & strip recognition */ - pp->add_field(pp, 0, "XYZ_X", r_t); - pp->add_field(pp, 0, "XYZ_Y", r_t); - pp->add_field(pp, 0, "XYZ_Z", r_t); - pp->add_field(pp, 1, "XYZ_X", r_t); - pp->add_field(pp, 1, "XYZ_Y", r_t); - pp->add_field(pp, 1, "XYZ_Z", r_t); - pp->add_field(pp, 2, "XYZ_X", r_t); - pp->add_field(pp, 2, "XYZ_Y", r_t); - pp->add_field(pp, 2, "XYZ_Z", r_t); - - /* Note if the expected values are expected to be accurate */ - if (pdata->is_specific(pdata)) - pp->add_kword(pp, 0, "ACCURATE_EXPECTED_VALUES", "true", NULL); - - if (xpow != 1.0) { - sprintf(buf,"%f",xpow); - pp->add_kword(pp, 0, "EXTRA_DEV_POW",buf, NULL); - } + /* Add expected XYZ values to aid previews, scan recognition & strip recognition */ + pp->add_field(pp, 0, "XYZ_X", r_t); + pp->add_field(pp, 0, "XYZ_Y", r_t); + pp->add_field(pp, 0, "XYZ_Z", r_t); + pp->add_field(pp, 1, "XYZ_X", r_t); + pp->add_field(pp, 1, "XYZ_Y", r_t); + pp->add_field(pp, 1, "XYZ_Z", r_t); + pp->add_field(pp, 2, "XYZ_X", r_t); + pp->add_field(pp, 2, "XYZ_Y", r_t); + pp->add_field(pp, 2, "XYZ_Z", r_t); + + /* Note if the expected values are expected to be accurate */ + if (pdata->is_specific(pdata)) + pp->add_kword(pp, 0, "ACCURATE_EXPECTED_VALUES", "true", NULL); + + if (xpow != 1.0) { + sprintf(buf,"%f",xpow); + pp->add_kword(pp, 0, "EXTRA_DEV_POW",buf, NULL); + } - if (demph > 1.0) { - sprintf(buf,"%f",demph); - pp->add_kword(pp, 0, "DARK_REGION_EMPHASIS",buf, NULL); - } + if (demph > 1.0) { + sprintf(buf,"%f",demph); + pp->add_kword(pp, 0, "DARK_REGION_EMPHASIS",buf, NULL); + } - /* Only use optimsed full spread if <= 4 dimensions, else use ifarp */ - if (di > 4 - && userand == 0 /* Not other high D useful method */ - && useqrand == 0 - && usedsim == 0 - && usepsim == 0) - uselat = 1; + /* Only use optimsed full spread if <= 4 dimensions, else use ifarp */ + if (di > 4 + && userand == 0 /* Not other high D useful method */ + && useqrand == 0 + && usedsim == 0 + && usepsim == 0) + uselat = 1; - /* Allocate space to record fixed steps */ - { - fxlist_a = 4; - if ((fxlist = (fxpos *)malloc(sizeof(fxpos) * fxlist_a)) == NULL) + /* Allocate space to record fixed steps */ + { + fxlist_a = 4; + if ((fxlist = (fxpos *)malloc(sizeof(fxpos) * fxlist_a)) == NULL) error ("Failed to malloc fxlist"); } @@ -1937,6 +1960,7 @@ int main(int argc, char *argv[]) { #endif /* ADDRECCLIPPOINTS */ } + /* Regular body centered cubic gridded Multi dimension steps */ if (bsteps > 0) { int gc[MXTD]; /* Grid coordinate */ @@ -2279,7 +2303,7 @@ int main(int argc, char *argv[]) { /* If this seems to be for a CRT, optimise the patch order to minimise the */ /* response time delays */ - if (nmask == ICX_RGB && pp->t[0].nsets > 1) { + if (nmask == ICX_RGB && pp->t[0].nsets > 1 && dontreorder == 0) { int npat = pp->t[0].nsets; char *nm; /* Don't move array */ double udelay, *delays, adelay; @@ -2386,7 +2410,7 @@ int main(int argc, char *argv[]) { int p1, p2, bp2; double p1d, p2d, p1d1, p2d1; double p1nd, p2nd, p1nd1, p2nd1; - double tdelay, de; + double tdelay, bdelay, de; int noswapped; chend = chstart + chsize+2; @@ -2396,7 +2420,7 @@ int main(int argc, char *argv[]) { //printf("~1 chstart %d, chend %d, size %d\n",chstart,chend, chend - chstart); /* While we are still improving, and the improvement was significant */ - for (;noswapped > 5;) { + for (;noswapped > 2;) { noswapped = 0; for (p1 = chstart + 1; p1 < chend; p1++) { @@ -2407,6 +2431,7 @@ int main(int argc, char *argv[]) { /* Locate the patch ahead of us that is best to swap with */ bp2 = -1; + bdelay = udelay; for (p2 = p1 + 2; p2 < chend; p2++) { if (nm[p2]) @@ -2429,14 +2454,18 @@ int main(int argc, char *argv[]) { tdelay = udelay - p1d - p2d - p1d1 - p2d1 + p1nd + p2nd + p1nd1 + p2nd1; - if (tdelay < udelay) { + if (tdelay < bdelay) /* Improve it */ +// if (tdelay > bdelay) /* Make it worse */ + { bp2 = p2; + bdelay = tdelay; } } if (bp2 < 0) { continue; } + /* Swap the patches */ noswapped++; p2 = bp2; @@ -2660,7 +2689,7 @@ int main(int argc, char *argv[]) { ttime = clock() - stime; if (verb) { - printf("Total number of patches = %d\n",id-1); + printf("Total number of patches = %d\n",pp->t[0].nsets); if (id < (1 + (1 << di))) printf("WARNING : not enough patches for %d channels, need at least %d\n",di,(1 + (1 << di))); printf("Execution time = %f seconds\n",ttime/(double)CLOCKS_PER_SEC); @@ -2669,14 +2698,16 @@ int main(int argc, char *argv[]) { if (pp->write_name(pp, fname)) error("Write error : %s",pp->err); -#ifdef VRML_DIAG /* Dump a VRML of the resulting points */ +#ifdef VRML_DIAG /* Dump a VRML/X3D of the resulting points */ if (dumpvrml & 1) { /* Lab space */ vrml *wrl; int nsets = pp->t[0].nsets; double rad; double dev[MXTD], Lab[3], col[3]; + int doaxes = 1; /* Do axes */ - wrl = new_vrml(wlname, 1, 0); /* Do axes */ + if ((wrl = new_vrml(wlname, doaxes, 0)) == NULL) + error("new_vrml failed for '%s%s'",wlname,vrml_ext()); /* Fudge sphere diameter */ rad = 15.0/pow(nsets, 1.0/(double)(di <= 3 ? di : 3)); @@ -2747,8 +2778,10 @@ int main(int argc, char *argv[]) { /* - - - - - - - - - - - - - - - - - - - - - - - - - - */ +#ifdef NEVER + /* Compte the display response time */ -static double disprespt(cgats *pp, int p1, int p2) { +static double disprespt2(cgats *pp, int p1, int p2) { double kr, kf; double orgb[3], rgb[3]; double xdelay = 0.0; @@ -2771,9 +2804,9 @@ static double disprespt(cgats *pp, int p1, int p2) { el = pow(rgb[j], 2.2); dl = el - pow(orgb[j], 2.2); /* Change in level */ if (fabs(dl) > 0.01) { /* More than 1% change in level */ - n = DISPLAY_SETTLE_AIM * el; - if (n < DISPLAY_ABS_AIM) - n = DISPLAY_ABS_AIM; + n = DISPLAY_SETTLE_AIM2 * el; + if (n < DISPLAY_ABS_AIM2) + n = DISPLAY_ABS_AIM2; if (dl > 0.0) t = kr * log(n/dl); else @@ -2786,8 +2819,23 @@ static double disprespt(cgats *pp, int p1, int p2) { return xdelay; } +#endif + +/* Compte the display response time */ +static double disprespt(cgats *pp, int p1, int p2) { + double orgb[3], nrgb[3]; + double xdelay = 0.0; + orgb[0] = *((double *)pp->t[0].fdata[p1][1 + 0]) / 100.0; + orgb[1] = *((double *)pp->t[0].fdata[p1][1 + 1]) / 100.0; + orgb[2] = *((double *)pp->t[0].fdata[p1][1 + 2]) / 100.0; + nrgb[0] = *((double *)pp->t[0].fdata[p2][1 + 0]) / 100.0; + nrgb[1] = *((double *)pp->t[0].fdata[p2][1 + 1]) / 100.0; + nrgb[2] = *((double *)pp->t[0].fdata[p2][1 + 2]) / 100.0; + xdelay = disp_settle_time(orgb, nrgb, DISPLAY_RISE_TIME, DISPLAY_FALL_TIME, DISPLAY_SETTLE_AIM); + return xdelay; +} diff --git a/ttbd.txt b/ttbd.txt index d0891a2..0a6ac0b 100644 --- a/ttbd.txt +++ b/ttbd.txt @@ -30,20 +30,16 @@ Recent suggestions: Add flat field support to scanin - Add "dynamic range" option to targen to concentrate - samples near black, + tweak colprof to skew grid - in that direction too. - Add DICOM support to dispcal. Change CIECAM02 to simplified & improved version - add filtered mode for tiffgamut + add filtered mode for tiffgamut (done ?) add dispcal option to set white point to closest point on the white locus to RBB 1 1 1 - add option to dark cal spectro's evern N readings in dispsup. + add option to dark cal spectro's every N readings in dispsup. Add some i1pro RevE UV support for improved FWA diff --git a/tweak/Jamfile b/tweak/Jamfile index ec5beba..c788adf 100644 --- a/tweak/Jamfile +++ b/tweak/Jamfile @@ -19,7 +19,7 @@ LINKLIBS = ../icc/libicc ../xicc/libxicc ../spectro/libinsttypes ../gamut/libgamut ../gamut/libgammap ../rspl/librspl ../cgats/libcgats ../numlib/libnum - ../plot/libplot ../plot/libvrml $(LibWin) ; + ../plot/libplot ../plot/libvrml ../numlib/libui $(LibWin) ; # Profile refiner Main refine : refine.c ; diff --git a/tweak/refine.c b/tweak/refine.c index 4d2104e..6e06882 100644 --- a/tweak/refine.c +++ b/tweak/refine.c @@ -79,6 +79,7 @@ #include "rspl.h" #include "xicc.h" #include "xicc.h" +#include "ui.h" #define COMPLOOKUP /* Compound with previous in ICM lookup rather than rspl */ #undef WARN_CLUT_CLIPPING /* [Undef] Print warning if setting clut clips */ diff --git a/ucmm/Jamfile b/ucmm/Jamfile index 5805272..23038f7 100644 --- a/ucmm/Jamfile +++ b/ucmm/Jamfile @@ -1,5 +1,5 @@ -# JAM style makefile for yajl +# JAM style makefile for ucmm #PREF_CCFLAGS = $(CCOPTFLAG) ; # Turn optimisation on PREF_CCFLAGS = $(CCDEBUGFLAG) ; # Debugging flags diff --git a/usb/45-Argyll.rules b/usb/45-Argyll.rules index 3f89f69..538aa72 100644 --- a/usb/45-Argyll.rules +++ b/usb/45-Argyll.rules @@ -3,60 +3,67 @@ # Copy to /etc/udev/rules.d/45-Argyll.rules # Colorimtre HCFR -SYSFS{idVendor}=="04db", SYSFS{idProduct}=="005b", PROGRAM="/bin/sh -c 'K=%k; K=$${K#usbdev}; printf bus/usb/%%03i/%%03i $${K%%%%.*} $${K#*.}'", NAME="%c", MODE="660", GROUP="plugdev" +SYSFS{idVendor}=="04db", SYSFS{idProduct}=="005b", PROGRAM="/bin/sh -c 'K=%k; K=$${K#usbdev}; printf bus/usb/%%03i/%%03i $${K%%%%.*} $${K#*.}'", NAME="%c", MODE="660", GROUP="colord" # MonacoOPTIX (Same as i1 Display 1) -SYSFS{idVendor}=="0670", SYSFS{idProduct}=="0001", PROGRAM="/bin/sh -c 'K=%k; K=$${K#usbdev}; printf bus/usb/%%03i/%%03i $${K%%%%.*} $${K#*.}'", NAME="%c", MODE="660", GROUP="plugdev" +SYSFS{idVendor}=="0670", SYSFS{idProduct}=="0001", PROGRAM="/bin/sh -c 'K=%k; K=$${K#usbdev}; printf bus/usb/%%03i/%%03i $${K%%%%.*} $${K#*.}'", NAME="%c", MODE="660", GROUP="colord" # Huey (Lenovo W70DS Laptop ?) -SYSFS{idVendor}=="0765", SYSFS{idProduct}=="5001", PROGRAM="/bin/sh -c 'K=%k; K=$${K#usbdev}; printf bus/usb/%%03i/%%03i $${K%%%%.*} $${K#*.}'", NAME="%c", MODE="660", GROUP="plugdev" +SYSFS{idVendor}=="0765", SYSFS{idProduct}=="5001", PROGRAM="/bin/sh -c 'K=%k; K=$${K#usbdev}; printf bus/usb/%%03i/%%03i $${K%%%%.*} $${K#*.}'", NAME="%c", MODE="660", GROUP="colord" # Huey (Lenovo W530 Laptop ?) -SYSFS{idVendor}=="0765", SYSFS{idProduct}=="5010", PROGRAM="/bin/sh -c 'K=%k; K=$${K#usbdev}; printf bus/usb/%%03i/%%03i $${K%%%%.*} $${K#*.}'", NAME="%c", MODE="660", GROUP="plugdev" +SYSFS{idVendor}=="0765", SYSFS{idProduct}=="5010", PROGRAM="/bin/sh -c 'K=%k; K=$${K#usbdev}; printf bus/usb/%%03i/%%03i $${K%%%%.*} $${K#*.}'", NAME="%c", MODE="660", GROUP="colord" # i1Display 3 -SYSFS{idVendor}=="0765", SYSFS{idProduct}=="5020", PROGRAM="/bin/sh -c 'K=%k; K=$${K#usbdev}; printf bus/usb/%%03i/%%03i $${K%%%%.*} $${K#*.}'", NAME="%c", MODE="660", GROUP="plugdev" +SYSFS{idVendor}=="0765", SYSFS{idProduct}=="5020", PROGRAM="/bin/sh -c 'K=%k; K=$${K#usbdev}; printf bus/usb/%%03i/%%03i $${K%%%%.*} $${K#*.}'", NAME="%c", MODE="660", GROUP="colord" # ColorMunki Smile -SYSFS{idVendor}=="0765", SYSFS{idProduct}=="6003", PROGRAM="/bin/sh -c 'K=%k; K=$${K#usbdev}; printf bus/usb/%%03i/%%03i $${K%%%%.*} $${K#*.}'", NAME="%c", MODE="660", GROUP="plugdev" +SYSFS{idVendor}=="0765", SYSFS{idProduct}=="6003", PROGRAM="/bin/sh -c 'K=%k; K=$${K#usbdev}; printf bus/usb/%%03i/%%03i $${K%%%%.*} $${K#*.}'", NAME="%c", MODE="660", GROUP="colord" # DTP20 -SYSFS{idVendor}=="0765", SYSFS{idProduct}=="d020", PROGRAM="/bin/sh -c 'K=%k; K=$${K#usbdev}; printf bus/usb/%%03i/%%03i $${K%%%%.*} $${K#*.}'", NAME="%c", MODE="660", GROUP="plugdev" +SYSFS{idVendor}=="0765", SYSFS{idProduct}=="d020", PROGRAM="/bin/sh -c 'K=%k; K=$${K#usbdev}; printf bus/usb/%%03i/%%03i $${K%%%%.*} $${K#*.}'", NAME="%c", MODE="660", GROUP="colord" # DTP92Q - not tested -SYSFS{idVendor}=="0765", SYSFS{idProduct}=="d092", PROGRAM="/bin/sh -c 'K=%k; K=$${K#usbdev}; printf bus/usb/%%03i/%%03i $${K%%%%.*} $${K#*.}'", NAME="%c", MODE="660", GROUP="plugdev" +SYSFS{idVendor}=="0765", SYSFS{idProduct}=="d092", PROGRAM="/bin/sh -c 'K=%k; K=$${K#usbdev}; printf bus/usb/%%03i/%%03i $${K%%%%.*} $${K#*.}'", NAME="%c", MODE="660", GROUP="colord" # DTP94 -SYSFS{idVendor}=="0765", SYSFS{idProduct}=="d094", PROGRAM="/bin/sh -c 'K=%k; K=$${K#usbdev}; printf bus/usb/%%03i/%%03i $${K%%%%.*} $${K#*.}'", NAME="%c", MODE="660", GROUP="plugdev" +SYSFS{idVendor}=="0765", SYSFS{idProduct}=="d094", PROGRAM="/bin/sh -c 'K=%k; K=$${K#usbdev}; printf bus/usb/%%03i/%%03i $${K%%%%.*} $${K#*.}'", NAME="%c", MODE="660", GROUP="colord" # Spyder 1 -SYSFS{idVendor}=="085c", SYSFS{idProduct}=="0100", PROGRAM="/bin/sh -c 'K=%k; K=$${K#usbdev}; printf bus/usb/%%03i/%%03i $${K%%%%.*} $${K#*.}'", NAME="%c", MODE="660", GROUP="plugdev" +SYSFS{idVendor}=="085c", SYSFS{idProduct}=="0100", PROGRAM="/bin/sh -c 'K=%k; K=$${K#usbdev}; printf bus/usb/%%03i/%%03i $${K%%%%.*} $${K#*.}'", NAME="%c", MODE="660", GROUP="colord" # Spyder 2 -SYSFS{idVendor}=="085c", SYSFS{idProduct}=="0200", PROGRAM="/bin/sh -c 'K=%k; K=$${K#usbdev}; printf bus/usb/%%03i/%%03i $${K%%%%.*} $${K#*.}'", NAME="%c", MODE="660", GROUP="plugdev" +SYSFS{idVendor}=="085c", SYSFS{idProduct}=="0200", PROGRAM="/bin/sh -c 'K=%k; K=$${K#usbdev}; printf bus/usb/%%03i/%%03i $${K%%%%.*} $${K#*.}'", NAME="%c", MODE="660", GROUP="colord" # Spyder 3 -SYSFS{idVendor}=="085c", SYSFS{idProduct}=="0300", PROGRAM="/bin/sh -c 'K=%k; K=$${K#usbdev}; printf bus/usb/%%03i/%%03i $${K%%%%.*} $${K#*.}'", NAME="%c", MODE="660", GROUP="plugdev" +SYSFS{idVendor}=="085c", SYSFS{idProduct}=="0300", PROGRAM="/bin/sh -c 'K=%k; K=$${K#usbdev}; printf bus/usb/%%03i/%%03i $${K%%%%.*} $${K#*.}'", NAME="%c", MODE="660", GROUP="colord" # Spyder 4 -SYSFS{idVendor}=="085c", SYSFS{idProduct}=="0400", PROGRAM="/bin/sh -c 'K=%k; K=$${K#usbdev}; printf bus/usb/%%03i/%%03i $${K%%%%.*} $${K#*.}'", NAME="%c", MODE="660", GROUP="plugdev" +SYSFS{idVendor}=="085c", SYSFS{idProduct}=="0400", PROGRAM="/bin/sh -c 'K=%k; K=$${K#usbdev}; printf bus/usb/%%03i/%%03i $${K%%%%.*} $${K#*.}'", NAME="%c", MODE="660", GROUP="colord" + +# Spyder 5 +SYSFS{idVendor}=="085c", SYSFS{idProduct}=="0500", PROGRAM="/bin/sh -c 'K=%k; K=$${K#usbdev}; printf bus/usb/%%03i/%%03i $${K%%%%.*} $${K#*.}'", NAME="%c", MODE="660", GROUP="colord" # i1Pro -SYSFS{idVendor}=="0971", SYSFS{idProduct}=="2000", PROGRAM="/bin/sh -c 'K=%k; K=$${K#usbdev}; printf bus/usb/%%03i/%%03i $${K%%%%.*} $${K#*.}'", NAME="%c", MODE="660", GROUP="plugdev" +SYSFS{idVendor}=="0971", SYSFS{idProduct}=="2000", PROGRAM="/bin/sh -c 'K=%k; K=$${K#usbdev}; printf bus/usb/%%03i/%%03i $${K%%%%.*} $${K#*.}'", NAME="%c", MODE="660", GROUP="colord" # i1Monitor -SYSFS{idVendor}=="0971", SYSFS{idProduct}=="2001", PROGRAM="/bin/sh -c 'K=%k; K=$${K#usbdev}; printf bus/usb/%%03i/%%03i $${K%%%%.*} $${K#*.}'", NAME="%c", MODE="660", GROUP="plugdev" +SYSFS{idVendor}=="0971", SYSFS{idProduct}=="2001", PROGRAM="/bin/sh -c 'K=%k; K=$${K#usbdev}; printf bus/usb/%%03i/%%03i $${K%%%%.*} $${K#*.}'", NAME="%c", MODE="660", GROUP="colord" # i1Display -SYSFS{idVendor}=="0971", SYSFS{idProduct}=="2003", PROGRAM="/bin/sh -c 'K=%k; K=$${K#usbdev}; printf bus/usb/%%03i/%%03i $${K%%%%.*} $${K#*.}'", NAME="%c", MODE="660", GROUP="plugdev" +SYSFS{idVendor}=="0971", SYSFS{idProduct}=="2003", PROGRAM="/bin/sh -c 'K=%k; K=$${K#usbdev}; printf bus/usb/%%03i/%%03i $${K%%%%.*} $${K#*.}'", NAME="%c", MODE="660", GROUP="colord" # Huey -SYSFS{idVendor}=="0971", SYSFS{idProduct}=="2005", PROGRAM="/bin/sh -c 'K=%k; K=$${K#usbdev}; printf bus/usb/%%03i/%%03i $${K%%%%.*} $${K#*.}'", NAME="%c", MODE="660", GROUP="plugdev" +SYSFS{idVendor}=="0971", SYSFS{idProduct}=="2005", PROGRAM="/bin/sh -c 'K=%k; K=$${K#usbdev}; printf bus/usb/%%03i/%%03i $${K%%%%.*} $${K#*.}'", NAME="%c", MODE="660", GROUP="colord" # ColorMunki -SYSFS{idVendor}=="0971", SYSFS{idProduct}=="2007", PROGRAM="/bin/sh -c 'K=%k; K=$${K#usbdev}; printf bus/usb/%%03i/%%03i $${K%%%%.*} $${K#*.}'", NAME="%c", MODE="660", GROUP="plugdev" +SYSFS{idVendor}=="0971", SYSFS{idProduct}=="2007", PROGRAM="/bin/sh -c 'K=%k; K=$${K#usbdev}; printf bus/usb/%%03i/%%03i $${K%%%%.*} $${K#*.}'", NAME="%c", MODE="660", GROUP="colord" # ColorHug -SYSFS{idVendor}=="04d8", SYSFS{idProduct}=="f8da", PROGRAM="/bin/sh -c 'K=%k; K=$${K#usbdev}; printf bus/usb/%%03i/%%03i $${K%%%%.*} $${K#*.}'", NAME="%c", MODE="660", GROUP="plugdev" -SYSFS{idVendor}=="273f", SYSFS{idProduct}=="1001", PROGRAM="/bin/sh -c 'K=%k; K=$${K#usbdev}; printf bus/usb/%%03i/%%03i $${K%%%%.*} $${K#*.}'", NAME="%c", MODE="660", GROUP="plugdev" +SYSFS{idVendor}=="04d8", SYSFS{idProduct}=="f8da", PROGRAM="/bin/sh -c 'K=%k; K=$${K#usbdev}; printf bus/usb/%%03i/%%03i $${K%%%%.*} $${K#*.}'", NAME="%c", MODE="660", GROUP="colord" +SYSFS{idVendor}=="273f", SYSFS{idProduct}=="1001", PROGRAM="/bin/sh -c 'K=%k; K=$${K#usbdev}; printf bus/usb/%%03i/%%03i $${K%%%%.*} $${K#*.}'", NAME="%c", MODE="660", GROUP="colord" +SYSFS{idVendor}=="273f", SYSFS{idProduct}=="1004", PROGRAM="/bin/sh -c 'K=%k; K=$${K#usbdev}; printf bus/usb/%%03i/%%03i $${K%%%%.*} $${K#*.}'", NAME="%c", MODE="660", GROUP="colord" + +# Image Engineering +SYSFS{idVendor}=="2457", SYSFS{idProduct}=="4000", PROGRAM="/bin/sh -c 'K=%k; K=$${K#usbdev}; printf bus/usb/%%03i/%%03i $${K%%%%.*} $${K#*.}'", NAME="%c", MODE="660", GROUP="colord" diff --git a/usb/55-Argyll.rules b/usb/55-Argyll.rules index 5fef930..527014b 100644 --- a/usb/55-Argyll.rules +++ b/usb/55-Argyll.rules @@ -1,90 +1,118 @@ +# Version=1.7.0 # udev rule to recognize instruments and make them accessible to user applications. # Copy this to /etc/udev/rules.d/55-Argyll.rules +# or /usr/lib/udev/rules.d/55-Argyll.rules +# and remove /usr/lib/udev/rules.d/69-cd-sensors.rules +# as appropriate for your system # Skip all this to speed things up if it'a not a usb add. ACTION!="add", GOTO="argyll_rules_end" SUBSYSTEM!="usb", GOTO="argyll_rules_end" # Recognize the color measurement devices +# COLORD_SENSOR_KIND, COLORD_SENSOR_CAPS, COLORD_SENSOR_EMBEDDED, COLORD_IGNORE +# are for the benefit of Gnome Color Manager - ArgyllCMS doesn't use them. # Colorimtre HCFR -ATTRS{idVendor}=="04db", ATTRS{idProduct}=="005b", ENV{COLOR_MEASUREMENT_DEVICE}="1" +ATTRS{idVendor}=="04db", ATTRS{idProduct}=="005b", ENV{COLORD_SENSOR_KIND}="colorimtre-hcfr", ENV{COLORD_SENSOR_CAPS}="projector" # MonacoOPTIX (Same as i1 Display 1) -ATTRS{idVendor}=="0670", ATTRS{idProduct}=="0001", ENV{COLOR_MEASUREMENT_DEVICE}="1" +ATTRS{idVendor}=="0670", ATTRS{idProduct}=="0001", ENV{COLORD_SENSOR_KIND}="i1-display1", ENV{COLORD_SENSOR_CAPS}="lcd crt" # HueyL (not tested) -ATTRS{idVendor}=="0765", ATTRS{idProduct}=="5001", ENV{COLOR_MEASUREMENT_DEVICE}="1" +ATTRS{idVendor}=="0765", ATTRS{idProduct}=="5001", ENV{COLORD_SENSOR_KIND}="huey", ENV{COLORD_SENSOR_CAPS}="lcd crt" ENV{COLORD_SENSOR_EMBEDDED}="1" # HueyL (not tested) -ATTRS{idVendor}=="0765", ATTRS{idProduct}=="5010", ENV{COLOR_MEASUREMENT_DEVICE}="1" +ATTRS{idVendor}=="0765", ATTRS{idProduct}=="5010", ENV{COLORD_SENSOR_KIND}="huey", ENV{COLORD_SENSOR_CAPS}="lcd crt" ENV{COLORD_SENSOR_EMBEDDED}="1" # i1Display 3 -ATTRS{idVendor}=="0765", ATTRS{idProduct}=="5020", ENV{COLOR_MEASUREMENT_DEVICE}="1" +ATTRS{idVendor}=="0765", ATTRS{idProduct}=="5020", ENV{COLORD_SENSOR_KIND}="i1-display3", ENV{COLORD_SENSOR_CAPS}="lcd crt projector ambient" # ColorMunki Smile -ATTRS{idVendor}=="0765", ATTRS{idProduct}=="6003", ENV{COLOR_MEASUREMENT_DEVICE}="1" +ATTRS{idVendor}=="0765", ATTRS{idProduct}=="6003", ENV{COLORD_SENSOR_KIND}="color-munki-smile", ENV{COLORD_SENSOR_CAPS}="lcd-ccfl lcd-white-led" # DTP20 -ATTRS{idVendor}=="0765", ATTRS{idProduct}=="d020", ENV{COLOR_MEASUREMENT_DEVICE}="1" +ATTRS{idVendor}=="0765", ATTRS{idProduct}=="d020", ENV{COLORD_SENSOR_KIND}="dtp20" ENV{COLORD_SENSOR_CAPS}="printer spot" # DTP92Q (not tested) -ATTRS{idVendor}=="0765", ATTRS{idProduct}=="d092", ENV{COLOR_MEASUREMENT_DEVICE}="1" +ATTRS{idVendor}=="0765", ATTRS{idProduct}=="d092", ENV{COLORD_SENSOR_KIND}="dtp92" ENV{COLORD_SENSOR_CAPS}="crt" # DTP94 -ATTRS{idVendor}=="0765", ATTRS{idProduct}=="d094", ENV{COLOR_MEASUREMENT_DEVICE}="1" +ATTRS{idVendor}=="0765", ATTRS{idProduct}=="d094", ENV{COLORD_SENSOR_KIND}="dtp94" ENV{COLORD_SENSOR_CAPS}="lcd crt" # i1Pro -ATTRS{idVendor}=="0971", ATTRS{idProduct}=="2000", ENV{COLOR_MEASUREMENT_DEVICE}="1" +ATTRS{idVendor}=="0971", ATTRS{idProduct}=="2000", ENV{COLORD_SENSOR_KIND}="i1-pro" ENV{COLORD_SENSOR_CAPS}="lcd crt projector printer ambient" # i1Monitor -ATTRS{idVendor}=="0971", ATTRS{idProduct}=="2001", ENV{COLOR_MEASUREMENT_DEVICE}="1" +ATTRS{idVendor}=="0971", ATTRS{idProduct}=="2001", ENV{COLORD_SENSOR_KIND}="i1-pro" ENV{COLORD_SENSOR_CAPS}="lcd crt" # i1Display -ATTRS{idVendor}=="0971", ATTRS{idProduct}=="2003", ENV{COLOR_MEASUREMENT_DEVICE}="1" +ATTRS{idVendor}=="0971", ATTRS{idProduct}=="2003", ENV{COLORD_SENSOR_KIND}="i1-display1" ENV{COLORD_SENSOR_CAPS}="lcd crt" # i1 io table (not tested) -ATTRS{idVendor}=="0971", ATTRS{idProduct}=="2004", ENV{COLOR_MEASUREMENT_DEVICE}="1" +ATTRS{idVendor}=="0971", ATTRS{idProduct}=="2004", ENV{COLORD_SENSOR_KIND}="i1-pro" ENV{COLORD_SENSOR_CAPS}="printer" # Huey -ATTRS{idVendor}=="0971", ATTRS{idProduct}=="2005", ENV{COLOR_MEASUREMENT_DEVICE}="1" +ATTRS{idVendor}=="0971", ATTRS{idProduct}=="2005", ENV{COLORD_SENSOR_KIND}="huey" ENV{COLORD_SENSOR_CAPS}="lcd crt ambient" # i1 iSis (not tested) -ATTRS{idVendor}=="0971", ATTRS{idProduct}=="2006", ENV{COLOR_MEASUREMENT_DEVICE}="1" +ATTRS{idVendor}=="0971", ATTRS{idProduct}=="2006", ENV{COLORD_SENSOR_KIND}="iSis" ENV{COLORD_SENSOR_CAPS}="printer" # ColorMunki -ATTRS{idVendor}=="0971", ATTRS{idProduct}=="2007", ENV{COLOR_MEASUREMENT_DEVICE}="1" +ATTRS{idVendor}=="0971", ATTRS{idProduct}=="2007", ENV{COLORD_SENSOR_KIND}="color-munki-photo" ENV{COLORD_SENSOR_CAPS}="lcd crt projector printer spot ambient" # Spyder 1 -ATTRS{idVendor}=="085c", ATTRS{idProduct}=="0100", ENV{COLOR_MEASUREMENT_DEVICE}="1" +ATTRS{idVendor}=="085c", ATTRS{idProduct}=="0100", ENV{COLORD_SENSOR_KIND}="spyder1" ENV{COLORD_SENSOR_CAPS}="lcd crt" # Spyder 2 -ATTRS{idVendor}=="085c", ATTRS{idProduct}=="0200", ENV{COLOR_MEASUREMENT_DEVICE}="1" +ATTRS{idVendor}=="085c", ATTRS{idProduct}=="0200", ENV{COLORD_SENSOR_KIND}="spyder2" ENV{COLORD_SENSOR_CAPS}="lcd crt" # Spyder 3 -ATTRS{idVendor}=="085c", ATTRS{idProduct}=="0300", ENV{COLOR_MEASUREMENT_DEVICE}="1" +ATTRS{idVendor}=="085c", ATTRS{idProduct}=="0300", ENV{COLORD_SENSOR_KIND}="spyder3" ENV{COLORD_SENSOR_CAPS}="lcd crt ambient" # Spyder 4 -ATTRS{idVendor}=="085c", ATTRS{idProduct}=="0400", ENV{COLOR_MEASUREMENT_DEVICE}="1" +ATTRS{idVendor}=="085c", ATTRS{idProduct}=="0400", ENV{COLORD_SENSOR_KIND}="spyder4" ENV{COLORD_SENSOR_CAPS}="lcd crt ambient" +# Spyder 5 +ATTRS{idVendor}=="085c", ATTRS{idProduct}=="0500", ENV{COLORD_SENSOR_KIND}="spyder5" ENV{COLORD_SENSOR_CAPS}="lcd crt ambient" -# ColorHug, old and new -ATTRS{idVendor}=="04d8", ATTRS{idProduct}=="f8da", ENV{COLOR_MEASUREMENT_DEVICE}="1" -ATTRS{idVendor}=="273f", ATTRS{idProduct}=="1001", ENV{COLOR_MEASUREMENT_DEVICE}="1" +# JETI & KLEIN FTDI +#KERNEL=="ttyUSB[0-9]*", TAG+="udev-acl", TAG+="uaccess" +# ColorHug, old and new USB ID's, ColorHug 2 +ATTRS{idVendor}=="04d8", ATTRS{idProduct}=="f8da", ENV{COLORD_SENSOR_KIND}="colorhug" ENV{COLORD_SENSOR_CAPS}="lcd" ENV{COLORD_IGNORE}="1" -# Let udev-acl manage these devices, if it's available -TEST=="/var/run/ConsoleKit/database", ENV{COLOR_MEASUREMENT_DEVICE}=="*?", ENV{ACL_MANAGE}="1" +ATTRS{idVendor}=="273f", ATTRS{idProduct}=="1001", ENV{COLORD_SENSOR_KIND}="colorhug" ENV{COLORD_SENSOR_CAPS}="lcd" + +ATTRS{idVendor}=="273f", ATTRS{idProduct}=="1004", ENV{COLORD_SENSOR_KIND}="colorhug" ENV{COLORD_SENSOR_CAPS}="lcd" + +# ColorHug Spectro +ATTRS{idVendor}=="273f", ATTRS{idProduct}=="1002", ENV{COLORD_SENSOR_KIND}="colorhug-spectro", ENV{COLORD_SENSOR_CAPS}="lcd" + +# Image Engineering +ATTRS{idVendor}=="2457", ATTRS{idProduct}=="4000", ENV{COLORD_SENSOR_KIND}="ex1", ENV{COLORD_SENSOR_CAPS}="lcd crt ambient" -# Otherwise, restrict access to members of the plugdev group, -# which the user may have to add to the system. -ENV{COLOR_MEASUREMENT_DEVICE}=="*?", ENV{ACL_MANAGE}!="*?", MODE="660", GROUP="plugdev" +######################################################### +# color calibration device +ENV{COLORD_SENSOR_KIND}=="*?", ENV{COLOR_MEASUREMENT_DEVICE}="1" # Set ID_VENDOR and ID_MODEL acording to VID and PID -TEST=="/lib/udev/usb-db", IMPORT{program}="usb-db %p" +#TEST=="/lib/udev/usb-db", IMPORT{program}="usb-db %p" +ENV{COLORD_SENSOR_KIND}=="*?", ENV{ID_MODEL}=="", IMPORT{program}="usb_id --export %p" +ENV{COLORD_SENSOR_KIND}=="*?", ENV{ID_MODEL_FROM_DATABASE}=="", IMPORT{program}="usb-db %p" + +# Debian has +# ...., TAG+="uaccess", TAG+="udev-acl" # Debian, but should be in 70-uaccess.rules + +# Let udev-acl manage these devices, if it's available +TEST=="/var/run/ConsoleKit/database", ENV{COLOR_MEASUREMENT_DEVICE}=="*?", ENV{ACL_MANAGE}="1" + +# Otherwise, restrict access to members of the colord group, +# which the user may have to add to the system and add themselves to. +ENV{COLOR_MEASUREMENT_DEVICE}=="*?", ENV{ACL_MANAGE}!="*?", MODE="660", GROUP="colord" LABEL="argyll_rules_end" diff --git a/usb/Argyll b/usb/Argyll index b16d929..b7eebc2 100644 --- a/usb/Argyll +++ b/usb/Argyll @@ -1,9 +1,9 @@ #!/bin/sh # Copy to /etc/hotplug/usb/Argyll # -# Argyll hotplug script. Adds the USB devices to the plugdev group. +# Argyll hotplug script. Adds the USB devices to the colord group. if [ "${ACTION}" = "add" ] && [ -f "${DEVICE}" ] then - chgrp plugdev "${DEVICE}" + chgrp colord "${DEVICE}" chmod 660 "${DEVICE}" fi diff --git a/usb/Argyll.usermap b/usb/Argyll.usermap index 00a350c..652728a 100644 --- a/usb/Argyll.usermap +++ b/usb/Argyll.usermap @@ -45,6 +45,9 @@ Argyll 0x0003 0x085C 0x0300 0x0000 0x0000 0x00 0x00 0x00 0x00 0x00 0x00 0x000000 # Spyder 4 Argyll 0x0003 0x085C 0x0400 0x0000 0x0000 0x00 0x00 0x00 0x00 0x00 0x00 0x00000000 # +# Spyder 5 +Argyll 0x0003 0x085C 0x0500 0x0000 0x0000 0x00 0x00 0x00 0x00 0x00 0x00 0x00000000 +# # Huey Argyll 0x0003 0x0971 0x2005 0x0000 0x0000 0x00 0x00 0x00 0x00 0x00 0x00 0x00000000 # diff --git a/usb/ArgyllCMS.cat b/usb/ArgyllCMS.cat index 4634140..3fb638a 100644 Binary files a/usb/ArgyllCMS.cat and b/usb/ArgyllCMS.cat differ diff --git a/usb/ArgyllCMS.inf b/usb/ArgyllCMS.inf index 115d981..4de9f51 100644 --- a/usb/ArgyllCMS.inf +++ b/usb/ArgyllCMS.inf @@ -107,6 +107,7 @@ ServiceBinary = %12%\libusb0.sys "ColorVision"=ColorVision_Devices,NTx86,NTamd64 "Gretag Macbeth/X-Rite"=GM_X_Rite_Devices,NTx86,NTamd64 "Hughski Ltd"=Hughski_Devices,NTx86,NTamd64 +"Image Engineering"=ImageEngineering_Devices,NTx86,NTamd64 ; ==== Devices ==== @@ -131,6 +132,7 @@ ServiceBinary = %12%\libusb0.sys "Spyder2 (Argyll)" = LIBUSB0_DEV, USB\VID_085C&PID_0200 "Spyder3 (Argyll)" = LIBUSB0_DEV, USB\VID_085C&PID_0300 "Spyder4 (Argyll)" = LIBUSB0_DEV, USB\VID_085C&PID_0400 +"Spyder5 (Argyll)" = LIBUSB0_DEV, USB\VID_085C&PID_0500 [GM_X_Rite_Devices] "Eye-One Pro (Argyll)" = LIBUSB0_DEV, USB\VID_0971&PID_2000 @@ -140,9 +142,13 @@ ServiceBinary = %12%\libusb0.sys "ColorMunki (Argyll)" = LIBUSB0_DEV, USB\VID_0971&PID_2007 [Hughski_Devices] +"ColorHug 2 (Argyll)" = LIBUSB0_DEV, USB\VID_273F&PID_1004 "ColorHug (Argyll)" = LIBUSB0_DEV, USB\VID_273F&PID_1001 "ColorHug (Argyll)" = LIBUSB0_DEV, USB\VID_04D8&PID_F8DA +[ImageEngineering_Devices] +"EX1 (Argyll)" = LIBUSB0_DEV, USB\VID_2457&PID_4000 + [HCFR_Devices.NTx86] "Colorimtre HCFR V3.1 (Argyll)" = LIBUSB0_DEV, USB\VID_04DB&PID_005B @@ -165,6 +171,7 @@ ServiceBinary = %12%\libusb0.sys "Spyder2 (Argyll)" = LIBUSB0_DEV, USB\VID_085C&PID_0200 "Spyder3 (Argyll)" = LIBUSB0_DEV, USB\VID_085C&PID_0300 "Spyder4 (Argyll)" = LIBUSB0_DEV, USB\VID_085C&PID_0400 +"Spyder5 (Argyll)" = LIBUSB0_DEV, USB\VID_085C&PID_0500 [GM_X_Rite_Devices.NTx86] "Eye-One Pro (Argyll)" = LIBUSB0_DEV, USB\VID_0971&PID_2000 @@ -174,9 +181,13 @@ ServiceBinary = %12%\libusb0.sys "ColorMunki (Argyll)" = LIBUSB0_DEV, USB\VID_0971&PID_2007 [Hughski_Devices.NTx86] +"ColorHug 2 (Argyll)" = LIBUSB0_DEV, USB\VID_273F&PID_1004 "ColorHug (Argyll)" = LIBUSB0_DEV, USB\VID_273F&PID_1001 "ColorHug (Argyll)" = LIBUSB0_DEV, USB\VID_04D8&PID_F8DA +[ImageEngineering_Devices.NTx86] +"EX1 (Argyll)" = LIBUSB0_DEV, USB\VID_2457&PID_4000 + [HCFR_Devices.NTamd64] "Colorimtre HCFR V3.1 (Argyll)" = LIBUSB0_DEV, USB\VID_04DB&PID_005B @@ -199,6 +210,7 @@ ServiceBinary = %12%\libusb0.sys "Spyder2 (Argyll)" = LIBUSB0_DEV, USB\VID_085C&PID_0200 "Spyder3 (Argyll)" = LIBUSB0_DEV, USB\VID_085C&PID_0300 "Spyder4 (Argyll)" = LIBUSB0_DEV, USB\VID_085C&PID_0400 +"Spyder5 (Argyll)" = LIBUSB0_DEV, USB\VID_085C&PID_0500 [GM_X_Rite_Devices.NTamd64] "Eye-One Pro (Argyll)" = LIBUSB0_DEV, USB\VID_0971&PID_2000 @@ -208,6 +220,10 @@ ServiceBinary = %12%\libusb0.sys "ColorMunki (Argyll)" = LIBUSB0_DEV, USB\VID_0971&PID_2007 [Hughski_Devices.NTamd64] +"ColorHug 2 (Argyll)" = LIBUSB0_DEV, USB\VID_273F&PID_1004 "ColorHug (Argyll)" = LIBUSB0_DEV, USB\VID_273F&PID_1001 "ColorHug (Argyll)" = LIBUSB0_DEV, USB\VID_04D8&PID_F8DA +[ImageEngineering_Devices.NTamd64] +"EX1 (Argyll)" = LIBUSB0_DEV, USB\VID_2457&PID_4000 + diff --git a/usb/ArgyllCMS.inf.d b/usb/ArgyllCMS.inf.d index 7836493..c130cee 100644 --- a/usb/ArgyllCMS.inf.d +++ b/usb/ArgyllCMS.inf.d @@ -20,6 +20,7 @@ "Spyder2 (Argyll)" = LIBUSB0_DEV, USB\VID_085C&PID_0200 "Spyder3 (Argyll)" = LIBUSB0_DEV, USB\VID_085C&PID_0300 "Spyder4 (Argyll)" = LIBUSB0_DEV, USB\VID_085C&PID_0400 +"Spyder5 (Argyll)" = LIBUSB0_DEV, USB\VID_085C&PID_0500 [GM_X_Rite_Devices#PLAT#] "Eye-One Pro (Argyll)" = LIBUSB0_DEV, USB\VID_0971&PID_2000 @@ -29,6 +30,10 @@ "ColorMunki (Argyll)" = LIBUSB0_DEV, USB\VID_0971&PID_2007 [Hughski_Devices#PLAT#] +"ColorHug 2 (Argyll)" = LIBUSB0_DEV, USB\VID_273F&PID_1004 "ColorHug (Argyll)" = LIBUSB0_DEV, USB\VID_273F&PID_1001 "ColorHug (Argyll)" = LIBUSB0_DEV, USB\VID_04D8&PID_F8DA +[ImageEngineering_Devices#PLAT#] +"EX1 (Argyll)" = LIBUSB0_DEV, USB\VID_2457&PID_4000 + diff --git a/usb/ArgyllCMS.inf.t b/usb/ArgyllCMS.inf.t index 5721a3f..635d9ef 100644 --- a/usb/ArgyllCMS.inf.t +++ b/usb/ArgyllCMS.inf.t @@ -107,5 +107,6 @@ ServiceBinary = %12%\libusb0.sys "ColorVision"=ColorVision_Devices,NTx86,NTamd64 "Gretag Macbeth/X-Rite"=GM_X_Rite_Devices,NTx86,NTamd64 "Hughski Ltd"=Hughski_Devices,NTx86,NTamd64 +"Image Engineering"=ImageEngineering_Devices,NTx86,NTamd64 ; ==== Devices ==== diff --git a/usb/ArgyllCMS_x64.cat b/usb/ArgyllCMS_x64.cat index 11d6f5f..ea6999a 100644 Binary files a/usb/ArgyllCMS_x64.cat and b/usb/ArgyllCMS_x64.cat differ diff --git a/xicc/Jamfile b/xicc/Jamfile index 58e5051..9c15349 100644 --- a/xicc/Jamfile +++ b/xicc/Jamfile @@ -21,7 +21,7 @@ HDRS = ../h ../icc ../rspl ../cgats ../numlib ../gamut ../spectro ../profile # XICC library Library libxicc : xicc.c xlutfix.c xspect.c xcolorants.c xutils.c iccjpeg.c xdevlin.c - xcam.c cam97s3.c cam02.c mpp.c ccmx.c ccss.c xfit.c xdgb.c moncurve.c xcal.c ; + xcam.c cam97s3.c cam02.c mpp.c ccmx.c ccss.c xfit.c xdgb.c moncurve.c xcal.c bt1886.c ; # colorant library. Use instead of libxicc Object xcolorants2 : xcolorants.c ; @@ -35,7 +35,8 @@ LibraryFromObjects libxutils : xutils2 iccjpeg2 ; # Utilities / test programs LINKLIBS = libxicc ../spectro/libinsttypes ../gamut/libgamut ../rspl/librspl - ../cgats/libcgats ../icc/libicc ../plot/libplot ../plot/libvrml ../numlib/libnum + ../cgats/libcgats ../icc/libicc ../plot/libplot ../plot/libvrml + ../numlib/libnum ../numlib/libui $(TIFFLIB) $(JPEGLIB) ; # Not created yet @@ -54,7 +55,7 @@ Main iccgamut : iccgamut.c ; Main tiffgamut : tiffgamut.c : : : $(TIFFINC) $(JPEGINC) : : ; # diagnostic utility -if [ GLOB . : tiffgmts.c ] { +if [ GLOB [ NormPaths . ] : tiffgmts.c ] { Main tiffgmts : tiffgmts.c : : : $(TIFFINC) $(JPEGINC) : : ../plot/libvrml ; } @@ -137,6 +138,8 @@ if $(BUILD_JUNK) { LINKLIBS += ../render/librender ; + Main illlocus : illlocus.c ; + Main slocustest : slocustest.c ; MainsFromSources t1.c t2.c t22.c t23.c t24.c t3.c ; diff --git a/xicc/afiles b/xicc/afiles index 8b4341a..f2b84ad 100644 --- a/xicc/afiles +++ b/xicc/afiles @@ -54,6 +54,8 @@ cam02plot.c moncurve.c moncurve.h monctest.c +bt1886.h +bt1886.c fbview.c xfbview.c icheck.c diff --git a/xicc/bt1886.c b/xicc/bt1886.c new file mode 100644 index 0000000..3f94dbe --- /dev/null +++ b/xicc/bt1886.c @@ -0,0 +1,351 @@ + +/* + * Author: Graeme W. Gill + * Date: 16/8/13 + * Version: 1.00 + * + * Copyright 2013, 2014 Graeme W. Gill + * All rights reserved. + * + * This material is licenced under the GNU AFFERO GENERAL PUB LICENSE Version 3 :- + * see the License.txt file for licencing details. + * + */ + +/* BT.1886 stype input offset transfer curve, */ +/* + general gamma + input + output offset curve support. */ + +#include +#include +#include +#ifdef __sun +#include +#endif +#if defined(__IBMC__) && defined(_M_IX86) +#include +#endif +#include "numlib.h" +#include "icc.h" /* definitions for this library */ +#include "bt1886.h" /* definitions for this library */ + +#undef DEBUG + +/* BT.1886 support */ +/* This is both a EOTF curve, and a white point */ +/* adjustment. */ + +/* Compute technical gamma from effective gamma in BT.1886 style */ + +/* Info for optimization */ +typedef struct { + double wp; /* 100% input target */ + double thyr; /* 50% input target */ + double bp; /* 0% input target */ +} gam_fits; + +/* gamma + input offset function handed to powell() */ +static double gam_fit(void *dd, double *v) { + gam_fits *gf = (gam_fits *)dd; + double gamma = v[0]; + double a, b; + double rv = 0.0; + double t1, t2; + + if (gamma < 0.0) { + rv += 100.0 * -gamma; + gamma = 1e-4; + } + + t1 = pow(gf->bp, 1.0/gamma); + t2 = pow(gf->wp, 1.0/gamma); + b = t1/(t2 - t1); /* Offset */ + a = pow(t2 - t1, gamma); /* Gain */ + + /* Comput 50% output for this technical gamma */ + /* (All values are without output offset being added in) */ + t1 = a * pow((0.5 + b), gamma); + t1 = t1 - gf->thyr; + rv += t1 * t1; + + return rv; +} + +/* Given the effective gamma and the output offset Y, */ +/* return the technical gamma needed for the correct 50% response. */ +static double xicc_tech_gamma( + double egamma, /* effective gamma needed */ + double off, /* Output offset required */ + double outoprop /* Prop. of offset to be accounted for on output */ +) { + gam_fits gf; + double outo; + double op[1], sa[1], rv; + + if (off <= 0.0) { + return egamma; + } + + /* We set up targets without outo being added */ + outo = off * outoprop; /* Offset acounted for in output */ + gf.bp = off - outo; /* Black value for 0 % input */ + gf.wp = 1.0 - outo; /* White value for 100% input */ + gf.thyr = pow(0.5, egamma) - outo; /* Advetised 50% target */ + + op[0] = egamma; + sa[0] = 0.1; + + if (powell(&rv, 1, op, sa, 1e-6, 500, gam_fit, (void *)&gf, NULL, NULL) != 0) + warning("Computing effective gamma and input offset is inaccurate"); + + return op[0]; +} + +/* Set the bt1886_info to a default do nothing state */ +void bt1886_setnop(bt1886_info *p) { + icmXYZ2XYZ(p->w, icmD50); + p->ingo = 0.0; + p->outsc = 1.0; + p->outo = 0.0; + p->outL = 0.0; + p->tab[1] = 0.0; + p->tab[2] = 0.0; +} + +/* Setup the bt1886_info for the given target black point, proportion of */ +/* offset to be accounted for on output, and gamma. */ +/* wp XYZ simply sets the L*a*b* reference */ +/* Pure BT.1886 will have outopro = 0.0 and gamma = 2.4 */ +void bt1886_setup( +bt1886_info *p, +icmXYZNumber *w, /* wp used for L*a*b* conversion */ +double *XYZbp, /* normalised bp used for black offset and black point hue "bend" */ +double outoprop, /* 0..1 proportion of output black point compensation */ +double gamma, /* technical or effective gamma */ +int effg /* nz if effective gamma, z if technical gamma */ +) { + double Lab[3], ino, bkipow, wtipow; + + icmXYZ2XYZ(p->w, *w); + +#ifdef DEBUG + a1logd(g_log, 2, "bt1886_setup wp.Y %f, bp.Y %f, outprop %f, gamma %f, effg %d", p->w.Y, XYZbp[1], outoprop, gamma, effg); +#endif + + if (effg) { + p->gamma = xicc_tech_gamma(gamma, XYZbp[1], outoprop); +#ifdef DEBUG + a1logd(g_log, 2, "bt1886_setup tgamma %f", p->gamma); +#endif + } else { + p->gamma = gamma; + } + + icmXYZ2Lab(&p->w, Lab, XYZbp); + + p->outL = Lab[0]; /* For bp blend comp. */ + p->tab[0] = Lab[1]; /* a* b* correction needed */ + p->tab[1] = Lab[2]; +#ifdef DEBUG + a1logd(g_log, 2, "bt1886_setup bend Lab = %f %f %f", p->outL, p->tab[0], p->tab[1]); +#endif + + if (XYZbp[1] < 0.0) + XYZbp[1] = 0.0; + + + p->outo = XYZbp[1] * outoprop; /* Offset acounted for in output */ + ino = XYZbp[1] - p->outo; /* Balance of offset accounted for in input */ + + bkipow = pow(ino, 1.0/p->gamma); /* Input offset black to 1/pow */ + wtipow = pow((1.0 - p->outo), 1.0/p->gamma); /* Input offset white to 1/pow */ + +#ifdef DEBUG + a1logd(g_log, 2, "bt1886_setup outo %f, ino %f, bkipow %f, wtipow %f", p->outo, ino, bkipow, wtipow); +#endif + + p->ingo = bkipow/(wtipow - bkipow); /* non-linear Y that makes input offset */ + /* proportion of black point */ + p->outsc = pow(wtipow - bkipow, p->gamma); /* Scale to make input of 1 map to */ + /* 1.0 - p->outo */ + +#ifdef DEBUG + a1logd(g_log, 2, "bt1886_setup ingo %f, outsc %f", p->ingo, p->outsc); +#endif +} + +/* Apply BT.1886 eotf curve to the device RGB value */ +/* to produce a linear light RGB. We pass xvYCC out of range values through. */ +void bt1886_fwd_curve(bt1886_info *p, double *out, double *in) { + int j; + +#ifdef DEBUG + a1logd(g_log, 2, "bt1886 Dev RGB in %f %f %f, pow %f\n", in[0],in[1],in[2], p->gamma); + a1logd(g_log, 2, "outo %f, outsc %f, pow %f\n", p->outo, p->outsc, 1.0/p->gamma); + a1logd(g_log, 2, "ingo %f, pow %f, outsc %f, outo %f\n", p->ingo, p->gamma, p->outsc,p->outo); +#endif + + for (j = 0; j < 3; j++) { + int neg = 0; + double vv = in[j]; + + if (vv < 0.0) { /* Allow for xvYCC */ + neg = 1; + vv = -vv; + } + /* Apply input offset */ + vv += p->ingo; + + /* Apply power and scale */ + if (vv > 0.0) + vv = p->outsc * pow(vv, p->gamma); + + /* Apply output portion of offset */ + vv += p->outo; + + if (neg) + vv = -vv; + + out[j] = vv; + } + +#ifdef DEBUG + a1logd(g_log, 2, "bt1886 linear RGB out %f %f %f\n", out[0],out[1],out[2]); +#endif +} + +/* Apply inverse BT.1886 eotf curve to the linear light RGB to produce */ +/* device RGB values. We pass xvYCC out of range values through. */ +void bt1886_bwd_curve(bt1886_info *p, double *out, double *in) { + int j; + +#ifdef DEBUG + a1logd(g_log, 2, "bt1886 linear RGB in %f %f %f\n", in[0],in[1],in[2]); + a1logd(g_log, 2, "outo %f, outsc %f, pow %f, ingo %f\n", p->outo, p->outsc, 1.0/p->gamma,p->ingo); +#endif + + for (j = 0; j < 3; j++) { + int neg = 0; + double vv = in[j]; + + if (vv < 0.0) { /* Allow for xvYCC */ + neg = 1; + vv = -vv; + } + + /* Un-apply output portion of offset */ + vv -= p->outo; + + /* Un-apply power and scale */ + if (vv > 0.0) + vv = pow(vv/p->outsc, 1.0/p->gamma); + + /* Un-apply input offset */ + vv -= p->ingo; + + if (neg) + vv = -vv; + + out[j] = vv; + } + +#ifdef DEBUG + a1logd(g_log, 2, "bt1886 Dev RGB out %f %f %f\n", in[0],in[1],in[2]); +#endif +} + +/* Apply BT.1886 processing black point hue adjustment to the XYZ value */ +void bt1886_wp_adjust(bt1886_info *p, double *out, double *in) { + double vv; + +#ifdef DEBUG + a1logd(g_log, 2, "bt1886 XYZ wp adj. in %f %f %f\n", in[0],in[1],in[2]); +#endif + + icmXYZ2Lab(&p->w, out, in); + +#ifdef DEBUG + a1logd(g_log, 2, "bt1886 Lab wp adj. in %f %f %f\n", out[0],out[1],out[2]); +#endif + + /* Blend ab to required black point offset p->tab[] as L approaches black. */ + vv = (out[0] - p->outL)/(100.0 - p->outL); /* 0 at bp, 1 at wp */ + vv = 1.0 - vv; + if (vv < 0.0) + vv = 0.0; + else if (vv > 1.0) + vv = 1.0; + vv = pow(vv, 40.0); + + out[1] += vv * p->tab[0]; + out[2] += vv * p->tab[1]; + +#ifdef DEBUG + a1logd(g_log, 2, "bt1886 Lab after wp adj. %f %f %f\n", out[0],out[1],out[2]); +#endif + + icmLab2XYZ(&p->w, out, out); + +#ifdef DEBUG + a1logd(g_log, 2, "bt1886 XYZ after wp adj. %f %f %f\n", out[0],out[1],out[2]); +#endif +} + + +/* Apply inverse BT.1886 processing black point hue adjustment to the XYZ value */ +void bt1886_inv_wp_adjust(bt1886_info *p, double *out, double *in) { + double vv; + +#ifdef DEBUG + a1logd(g_log, 2, "bt1886 XYZ inv. wp adj. in %f %f %f\n", in[0],in[1],in[2]); +#endif + + icmXYZ2Lab(&p->w, out, in); + +#ifdef DEBUG + a1logd(g_log, 2, "bt1886 Lab inv. wp adj. in %f %f %f\n", out[0],out[1],out[2]); +#endif + + /* Blend ab to required black point offset p->tab[] as L approaches black. */ + vv = (out[0] - p->outL)/(100.0 - p->outL); /* 0 at bp, 1 at wp */ + vv = 1.0 - vv; + if (vv < 0.0) + vv = 0.0; + else if (vv > 1.0) + vv = 1.0; + vv = pow(vv, 40.0); + + out[1] -= vv * p->tab[0]; + out[2] -= vv * p->tab[1]; + +#ifdef DEBUG + a1logd(g_log, 2, "bt1886 Lab after inv. wp adj. %f %f %f\n", out[0],out[1],out[2]); +#endif + + icmLab2XYZ(&p->w, out, out); + +#ifdef DEBUG + a1logd(g_log, 2, "bt1886 XYZ after inv. wp adj. %f %f %f\n", out[0],out[1],out[2]); +#endif +} + + + + + + + + + + + + + + + + + + + + + + diff --git a/xicc/bt1886.h b/xicc/bt1886.h new file mode 100644 index 0000000..f14efdc --- /dev/null +++ b/xicc/bt1886.h @@ -0,0 +1,94 @@ +#ifndef BT1886_H +#define BT1886_H + +/* + * Author: Graeme W. Gill + * Date: 16/8/13 + * Version: 1.00 + * + * Copyright 2013, 2014 Graeme W. Gill + * All rights reserved. + * + * This material is licenced under the GNU AFFERO GENERAL PUB LICENSE Version 3 :- + * see the License.txt file for licencing details. + * + */ + +/* BT.1886 stype input offset transfer curve, */ +/* + general gamma + input + output offset curve support. */ + + +typedef struct { + icmXYZNumber w; /* White point for Lab conversion */ + double ingo; /* input Y offset for bt1886 */ + double outsc; /* output Y scale for bt1886 */ + double outo; /* output Y offset */ + double outL; /* output black point L value */ + double tab[2]; /* Target ab offset value at zero input for bt1886 */ + double gamma; /* bt.1886 technical gamma to apply */ +} bt1886_info; + +/* Set the bt1886_info to a default do nothing state */ +void bt1886_setnop(bt1886_info *p); + +/* Setup the bt1886_info for the given target */ +void bt1886_setup( +bt1886_info *p, +icmXYZNumber *w, /* wp used for L*a*b* conversion */ +double *XYZbp, /* normalised bp used for black offset and black point hue "bend" */ +double outoprop, /* 0..1 proportion of output black point compensation */ +double gamma, /* technical or effective gamma */ +int effg /* nz if effective gamma, z if technical gamma */ +); + +/* Apply BT.1886 eotf curve to the device RGB value */ +/* to produce a linear light RGB. We pass xvYCC out of range values through. */ +void bt1886_fwd_curve(bt1886_info *p, double *out, double *in); + +/* Apply BT.1886 processing black point hue adjustment to the XYZ value */ +void bt1886_wp_adjust(bt1886_info *p, double *out, double *in); + + +/* Apply inverse BT.1886 eotf curve to the device RGB value */ +/* to produce a linear light RGB. We pass xvYCC out of range values through. */ +void bt1886_bwd_curve(bt1886_info *p, double *out, double *in); + +/* Apply inverse BT.1886 processing black point hue adjustment to the XYZ value */ +void bt1886_inv_wp_adjust(bt1886_info *p, double *out, double *in); + +#endif /* BT1886_H */ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + diff --git a/xicc/cam02.c b/xicc/cam02.c index 3684a78..9bc9343 100644 --- a/xicc/cam02.c +++ b/xicc/cam02.c @@ -46,7 +46,7 @@ uniformity. A color with one component near zero might shift all the components to -ve values on inverse conversion - ie. a 1 DE shift in Jab becomes a masive DE in XYZ/Lab/perceptual, - with (say) a darl red becomong black because the blue + with (say) a dark red becomong black because the blue value is small. One way around this is to re-introduce a flag to turn off perfect symetry by disabling expansion on the reverse conversion. @@ -279,7 +279,7 @@ double Yb, /* Relative Luminance of Background to reference white (range 0.0 .. double Lv, /* Luminance of white in the Viewing/Scene/Image field (cd/m^2) */ /* Ignored if Ev is set to other than vc_none */ double Yf, /* Flare as a fraction of the reference white (Y range 0.0 .. 1.0) */ -double Yg, /* Flare as a fraction of the ambient (Y range 0.0 .. 1.0) */ +double Yg, /* Flare as a fraction of the adapting/surround (Y range 0.0 .. 1.0) */ double Gxyz[3], /* The Glare white coordinates (typically the Ambient color) */ /* If <= 0 will Wxyz will be used. */ int hk /* Flag, NZ to use Helmholtz-Kohlraush effect */ @@ -403,7 +403,7 @@ int hk /* Flag, NZ to use Helmholtz-Kohlraush effect */ s->Fsxyz[1] = s->Yf * s->Wxyz[1]; s->Fsxyz[2] = s->Yf * s->Wxyz[2]; - /* Add in the Glare contribution from the ambient */ + /* Add in the Glare contribution from the adapting/surround */ tt = s->Yg * s->La/s->Lv; s->Fsxyz[0] += tt * s->Gxyz[0]; s->Fsxyz[1] += tt * s->Gxyz[1]; @@ -558,8 +558,8 @@ int hk /* Flag, NZ to use Helmholtz-Kohlraush effect */ printf("Scene parameters:\n"); printf("Viewing condition Ev = %d\n",s->Ev); printf("Ref white Wxyz = %f %f %f\n", s->Wxyz[0], s->Wxyz[1], s->Wxyz[2]); - printf("Relative liminance of background Yb = %f\n", s->Yb); - printf("Adapting liminance La = %f\n", s->La); + printf("Relative luminance of background Yb = %f\n", s->Yb); + printf("Adapting luminance La = %f\n", s->La); printf("Flare Yf = %f\n", s->Yf); printf("Glare Yg = %f\n", s->Yg); printf("Glare color Gxyz = %f %f %f\n", s->Gxyz[0], s->Gxyz[1], s->Gxyz[2]); diff --git a/xicc/cam02.h b/xicc/cam02.h index a42e71f..37443d3 100644 --- a/xicc/cam02.h +++ b/xicc/cam02.h @@ -17,7 +17,7 @@ * * This file is based on cam97s3.h by Graeme Gill. * - * Copyright 2004 - 2013 Graeme W. Gill + * Copyright 2004 - 2014 Graeme W. Gill * Please refer to COPYRIGHT file for details. * This material is licenced under the GNU AFFERO GENERAL PUBLIC LICENSE Version 3 :- * see the License.txt file for licencing details. @@ -39,7 +39,8 @@ Surround/Adapting field is the visual field minus the background field, and is what is assumed to be setting the viewers light adaptation level. - Ambient field is the whole surrounding environmental light field. + Ambient field is general illumination from the sun or general lighting, + and is the whole surrounding environmental light field. Illuminating field is the field that illuminates the reflective Scene/Image. It may be the same as the Ambient field or it could @@ -88,7 +89,7 @@ /* Flare is assumed to be stray light from light parts of the */ /* image illuminating dark parts of the image, and is display technology dependent. */ -/* In theory reflective systems have no Flare ? */ +/* In theory reflective systems have little Flare ? */ /* Glare is assumed to be stray ambient light reflecting from the display */ /* surface, dust, or entering the observers eye directly, and as a result */ @@ -138,7 +139,7 @@ struct _cam02 { double Lv, /* Luminance of white in the Viewing/Scene/Image field (cd/m^2) */ /* Ignored if Ev is set */ double Yf, /* Flare as a fraction of the reference white (range 0.0 .. 1.0) */ - double Yg, /* Glare as a fraction of the ambient (range 0.0 .. 1.0) */ + double Yg, /* Glare as a fraction of the adapting/surround (range 0.0 .. 1.0) */ double Gxyz[3], /* The Glare white coordinates (ie. the Ambient color) */ /* If <= 0 will Wxyz will be used. */ int hk /* Flag, NZ to use Helmholtz-Kohlraush effect */ @@ -156,7 +157,7 @@ struct _cam02 { double Wxyz[3]; /* Reference/Adapted White XYZ (Y range 0.0 .. 1.0) */ double Yb; /* Relative Luminance of Background to reference white (Y range 0.0 .. 1.0) */ double Yf; /* Flare as a fraction of the reference white (Y range 0.0 .. 1.0) */ - double Yg; /* Glare as a fraction of the ambient (Y range 0.0 .. 1.0) */ + double Yg; /* Glare as a fraction of the adapting/surround (Y range 0.0 .. 1.0) */ double Gxyz[3]; /* The Glare white coordinates (typically the Ambient color) */ /* Internal parameters */ diff --git a/xicc/cam02ref.h b/xicc/cam02ref.h index 8965b7a..29f7d2a 100644 --- a/xicc/cam02ref.h +++ b/xicc/cam02ref.h @@ -41,7 +41,7 @@ struct _cam02ref { double Lv, /* Luminance of white in the Viewing/Scene/Image field (cd/m^2) */ /* Ignored if Ev is set */ double Yf, /* Flare as a fraction of the reference white (range 0.0 .. 1.0) */ - double Yg, /* Glare as a fraction of the ambient (range 0.0 .. 1.0) */ + double Yg, /* Glare as a fraction of the adapting/surround (range 0.0 .. 1.0) */ double Gxyz[3], /* The Glare white coordinates (typically the Ambient color) */ int hk /* Flag, NZ to use Helmholtz-Kohlraush effect */ ); @@ -158,7 +158,7 @@ double Yb, /* Relative Luminence of Background to reference white */ double Lv, /* Luminence of white in the Viewing/Scene/Image field (cd/m^2) */ /* Ignored if Ev is set to other than vc_none */ double Yf, /* Flare as a fraction of the reference white (Y range 0.0 .. 1.0) */ -double Yg, /* Glare as a fraction of the ambient (Y range 0.0 .. 1.0) */ +double Yg, /* Glare as a fraction of the adapting/surround (Y range 0.0 .. 1.0) */ double Gxyz[3], /* The Glare white coordinates (typically the Ambient color) */ int hk /* Flag, NZ to use Helmholtz-Kohlraush effect */ ) { @@ -223,7 +223,7 @@ int hk /* Flag, NZ to use Helmholtz-Kohlraush effect */ s->Fsxyz[1] = s->Yf * s->Wxyz[1]; s->Fsxyz[2] = s->Yf * s->Wxyz[2]; - /* Add in the Glare contribution from the ambient */ + /* Add in the Glare contribution from the adapting/surround */ tt = s->Yg * s->La/s->Lv; s->Fsxyz[0] += tt * s->Gxyz[0]; s->Fsxyz[1] += tt * s->Gxyz[1]; diff --git a/xicc/ccmx.c b/xicc/ccmx.c index b1244af..464b89c 100644 --- a/xicc/ccmx.c +++ b/xicc/ccmx.c @@ -37,6 +37,7 @@ #include "conv.h" #endif #include "cgats.h" +#include "disptechs.h" #include "ccmx.h" #ifdef NT /* You'd think there might be some standards.... */ @@ -78,18 +79,11 @@ cgats **pocg /* return CGATS structure */ ocg->add_kword(ocg, 0, "INSTRUMENT",p->inst, NULL); if (p->disp != NULL) ocg->add_kword(ocg, 0, "DISPLAY",p->disp, NULL); - if (p->tech != NULL) - ocg->add_kword(ocg, 0, "TECHNOLOGY",p->tech, NULL); - if (p->disp == NULL && p->tech == NULL) { -#ifdef DEBUG - fprintf(stdout, "write_ccmx: ccmx doesn't contain display or techology strings"); -#endif - sprintf(p->err, "write_ccmx: ccmx doesn't contain display or techology strings"); - ocg->del(ocg); - return 1; - } - if (p->cbid != 0) { - sprintf(buf, "%d", p->cbid); + + ocg->add_kword(ocg, 0, "TECHNOLOGY", disptech_get_id(p->dtech)->strid,NULL); + + if (p->cc_cbid != 0) { + sprintf(buf, "%d", p->cc_cbid); ocg->add_kword(ocg, 0, "DISPLAY_TYPE_BASE_ID", buf, NULL); } if (p->refrmode >= 0) @@ -199,62 +193,54 @@ cgats *icg /* input cgats structure */ if (icg->ntables == 0 || icg->t[0].tt != tt_other || icg->t[0].oi != 0) { sprintf(p->err, "read_ccmx: Input file isn't a CCMX format file"); - icg->del(icg); return 1; } if (icg->ntables != 1) { sprintf(p->err, "Input file doesn't contain exactly one table"); - icg->del(icg); return 1; } if ((ti = icg->find_kword(icg, 0, "COLOR_REP")) < 0) { sprintf(p->err, "read_ccmx: Input file doesn't contain keyword COLOR_REP"); - icg->del(icg); return 1; } if (strcmp(icg->t[0].kdata[ti],"XYZ") != 0) { sprintf(p->err, "read_ccmx: Input file doesn't have COLOR_REP of XYZ"); - icg->del(icg); return 1; } if ((ti = icg->find_kword(icg, 0, "DESCRIPTOR")) >= 0) { if ((p->desc = strdup(icg->t[0].kdata[ti])) == NULL) { sprintf(p->err, "read_ccmx: malloc failed"); - icg->del(icg); return 2; } } if ((ti = icg->find_kword(icg, 0, "INSTRUMENT")) < 0) { sprintf(p->err, "read_ccmx: Input file doesn't contain keyword INSTRUMENT"); - icg->del(icg); return 1; } if ((p->inst = strdup(icg->t[0].kdata[ti])) == NULL) { sprintf(p->err, "read_ccmx: malloc failed"); - icg->del(icg); return 2; } if ((ti = icg->find_kword(icg, 0, "DISPLAY")) >= 0) { if ((p->disp = strdup(icg->t[0].kdata[ti])) == NULL) { sprintf(p->err, "read_ccmx: malloc failed"); - icg->del(icg); return 2; } } if ((ti = icg->find_kword(icg, 0, "TECHNOLOGY")) >= 0) { if ((p->tech = strdup(icg->t[0].kdata[ti])) == NULL) { sprintf(p->err, "read_ccmx: malloc failed"); - icg->del(icg); return 2; } + /* Get disptech enum from standard TECHNOLOGY string */ + p->dtech = disptech_get_strid(p->tech)->dtech; } if (p->disp == NULL && p->tech == NULL) { sprintf(p->err, "read_ccmx: Input file doesn't contain keyword DISPLAY or TECHNOLOGY"); - icg->del(icg); return 1; } if ((ti = icg->find_kword(icg, 0, "DISPLAY_TYPE_REFRESH")) >= 0) { @@ -266,15 +252,14 @@ cgats *icg /* input cgats structure */ p->refrmode = -1; } if ((ti = icg->find_kword(icg, 0, "DISPLAY_TYPE_BASE_ID")) >= 0) { - p->cbid = atoi(icg->t[0].kdata[ti]); + p->cc_cbid = atoi(icg->t[0].kdata[ti]); } else { - p->cbid = 0; + p->cc_cbid = 0; } if ((ti = icg->find_kword(icg, 0, "UI_SELECTORS")) >= 0) { if ((p->sel = strdup(icg->t[0].kdata[ti])) == NULL) { sprintf(p->err, "read_ccmx: malloc failed"); - icg->del(icg); return 2; } } @@ -282,7 +267,6 @@ cgats *icg /* input cgats structure */ if ((ti = icg->find_kword(icg, 0, "REFERENCE")) >= 0) { if ((p->ref = strdup(icg->t[0].kdata[ti])) == NULL) { sprintf(p->err, "read_ccmx: malloc failed"); - icg->del(icg); return 2; } } @@ -291,19 +275,16 @@ cgats *icg /* input cgats structure */ for (i = 0; i < 3; i++) { /* XYZ fields */ if ((spi[i] = icg->find_field(icg, 0, xyzfname[i])) < 0) { sprintf(p->err, "read_ccmx: Input file doesn't contain field %s", xyzfname[i]); - icg->del(icg); return 1; } if (icg->t[0].ftype[spi[i]] != r_t) { sprintf(p->err, "read_ccmx: Input file field %s is wrong type", xyzfname[i]); - icg->del(icg); return 1; } } if (icg->t[0].nsets != 3) { sprintf(p->err, "read_ccmx: Input file doesn't have exactly 3 sets"); - icg->del(icg); return 1; } @@ -405,8 +386,8 @@ double *in /* Input XYZ */ static int set_ccmx(ccmx *p, char *desc, /* General description (optional) */ char *inst, /* Instrument description to copy from */ -char *disp, /* Display make and model (optional if tech) */ -char *tech, /* Display technology description (optional if disp) */ +char *disp, /* Display make and model (optional) */ +disptech dtech, /* Display technology enum */ int refrmode, /* Display refresh mode, -1 = unknown, 0 = n, 1 = yes */ int cbid, /* Display type calibration base ID, 0 = unknown */ char *sel, /* UI selector characters - NULL for none */ @@ -425,13 +406,9 @@ double mtx[3][3] /* Transform matrix to copy from */ sprintf(p->err, "set_ccmx: malloc failed"); return 2; } - if ((p->tech = tech) != NULL && (p->tech = strdup(tech)) == NULL) { - sprintf(p->err, "set_ccmx: malloc failed"); - return 2; - } - + p->dtech = dtech; p->refrmode = refrmode; - p->cbid = cbid; + p->cc_cbid = cbid; if (sel != NULL) { if ((p->sel = strdup(sel)) == NULL) { @@ -557,8 +534,8 @@ double optf(void *fdata, double *tp) { static int create_ccmx(ccmx *p, char *desc, /* General description (optional) */ char *inst, /* Instrument description to copy from */ -char *disp, /* Display make and model (optional if tech) */ -char *tech, /* Display technology description (optional if disp) */ +char *disp, /* Display make and model (optional) */ +disptech dtech, /* Display technology enum */ int refrmode, /* Display refresh mode, -1 = unknown, 0 = n, 1 = yes */ int cbid, /* Display type calibration base index, 0 = unknown */ char *sel, /* UI selector characters - NULL for none */ @@ -584,12 +561,9 @@ double (*cols)[3] /* Array of XYZ values from colorimeter */ sprintf(p->err, "create_ccmx: malloc failed"); return 2; } - if ((p->tech = tech) != NULL && (p->tech = strdup(tech)) == NULL) { - sprintf(p->err, "create_ccmx: malloc failed"); - return 2; - } + p->dtech = dtech; p->refrmode = refrmode; - p->cbid = cbid; + p->cc_cbid = cbid; if (sel != NULL) { if ((p->sel = strdup(sel)) == NULL) { @@ -680,10 +654,10 @@ double (*cols)[3] /* Array of XYZ values from colorimeter */ static int create_ccmx(ccmx *p, char *desc, /* General description (optional) */ char *inst, /* Instrument description to copy from */ -char *disp, /* Display make and model (optional if tech) */ -char *tech, /* Display technology description (optional if disp) */ +char *disp, /* Display make and model (optional) */ +disptech dtech, /* Display technology enum */ int refrmode, /* Display refresh mode, -1 = unknown, 0 = n, 1 = yes */ -int cbid, /* Display type calibration base ID, 0 = unknown */ +int cbid, /* Display type calibration base index, 0 = unknown */ char *sel, /* UI selector characters - NULL for none */ char *refd, /* Reference spectrometer description (optional) */ int npat, /* Number of samples in following arrays */ @@ -724,7 +698,7 @@ ccmx *new_ccmx(void) { return NULL; p->refrmode = -1; - p->cbid = 0; + p->cc_cbid = 0; /* Init method pointers */ p->del = del_ccmx; diff --git a/xicc/ccmx.h b/xicc/ccmx.h index b0ca01a..48598fc 100644 --- a/xicc/ccmx.h +++ b/xicc/ccmx.h @@ -33,13 +33,13 @@ struct _ccmx { void (*del)(struct _ccmx *p); /* Set the contents of the ccmx. return nz on error. */ - int (*set_ccmx)(struct _ccmx *p, char *desc, char *inst, char *disp, char *tech, + int (*set_ccmx)(struct _ccmx *p, char *desc, char *inst, char *disp, disptech dtech, int refrmode, int cbid, char *sel, char *refd, double mtx[3][3]); /* Create a ccmx from measurements. return nz on error. */ - int (*create_ccmx)(struct _ccmx *p, char *desc, char *inst, char *disp, char *tech, + int (*create_ccmx)(struct _ccmx *p, char *desc, char *inst, char *disp, disptech dtech, int refrmode, int cbid, char *sel, char *refd, - int nsamples, double refs[][3], double cols[][3]); + int nsamples, double (*refs)[3], double (*cols)[3]); /* write to a CGATS .ccmx file */ int (*write_ccmx)(struct _ccmx *p, char *filename); @@ -64,10 +64,11 @@ struct _ccmx { char *desc; /* Desciption (optional) */ char *inst; /* Name of colorimeter instrument */ char *disp; /* Name of display (optional if tech) */ - char *tech; /* Technology (CRT, LCD + backlight type etc.) (optional if disp) */ - int cbid; /* Calibration display type base ID, 0 if not known */ + disptech dtech; /* Display Technology enumeration (optional if disp) */ + char *tech; /* Technology string (Looked up from dtech enum) */ + int cc_cbid; /* Calibration display type base ID required, 0 if not known */ int refrmode; /* Refresh mode, -1 if unknown, 0 of no, 1 if yes */ - char *sel; /* Optional UI selector characters. May be NULL */ + char *sel; /* Optional UI selector characters. May be NULL */ char *ref; /* Name of spectrometer instrument (optional) */ double matrix[3][3]; /* Transform matrix */ double av_err; /* Average error of fit */ diff --git a/xicc/ccss.c b/xicc/ccss.c index 6b5ebeb..663a789 100644 --- a/xicc/ccss.c +++ b/xicc/ccss.c @@ -35,6 +35,7 @@ #endif #include "cgats.h" #include "xspect.h" +#include "disptechs.h" #include "ccss.h" #ifdef NT /* You'd think there might be some standards.... */ @@ -88,8 +89,9 @@ cgats **pocg /* return CGATS structure */ if (p->disp) ocg->add_kword(ocg, 0, "DISPLAY",p->disp, NULL); - if (p->tech) - ocg->add_kword(ocg, 0, "TECHNOLOGY", p->tech,NULL); + + ocg->add_kword(ocg, 0, "TECHNOLOGY", disptech_get_id(p->dtech)->strid,NULL); + if (p->disp == NULL && p->tech == NULL) { sprintf(p->err, "write_ccss: ccss doesn't contain display or techology strings"); ocg->del(ocg); @@ -251,12 +253,10 @@ cgats *icg /* input cgats structure */ if (icg->ntables == 0 || icg->t[0].tt != tt_other || icg->t[0].oi != 0) { sprintf(p->err, "read_ccss: Input file isn't a CCSS format file"); - icg->del(icg); return 1; } if (icg->ntables != 1) { sprintf(p->err, "Input file doesn't contain exactly one table"); - icg->del(icg); return 1; } @@ -265,21 +265,18 @@ cgats *icg /* input cgats structure */ if ((ti = icg->find_kword(icg, 0, "DESCRIPTOR")) >= 0) { if ((p->desc = strdup(icg->t[0].kdata[ti])) == NULL) { sprintf(p->err, "read_ccss: malloc failed"); - icg->del(icg); return 2; } } if ((ti = icg->find_kword(icg, 0, "ORIGINATOR")) >= 0) { if ((p->orig = strdup(icg->t[0].kdata[ti])) == NULL) { sprintf(p->err, "read_ccss: malloc failed"); - icg->del(icg); return 2; } } if ((ti = icg->find_kword(icg, 0, "CREATED")) >= 0) { if ((p->crdate = strdup(icg->t[0].kdata[ti])) == NULL) { sprintf(p->err, "read_ccss: malloc failed"); - icg->del(icg); return 2; } } @@ -287,20 +284,19 @@ cgats *icg /* input cgats structure */ if ((ti = icg->find_kword(icg, 0, "DISPLAY")) >= 0) { if ((p->disp = strdup(icg->t[0].kdata[ti])) == NULL) { sprintf(p->err, "read_ccss: malloc failed"); - icg->del(icg); return 2; } } if ((ti = icg->find_kword(icg, 0, "TECHNOLOGY")) >= 0) { if ((p->tech = strdup(icg->t[0].kdata[ti])) == NULL) { sprintf(p->err, "read_ccss: malloc failed"); - icg->del(icg); return 2; } + /* Get disptech enum from standard TECHNOLOGY string */ + p->dtech = disptech_get_strid(p->tech)->dtech; } if (p->disp == NULL && p->tech == NULL) { sprintf(p->err, "read_ccss: Input file doesn't contain keyword DISPLAY or TECHNOLOGY"); - icg->del(icg); return 1; } if ((ti = icg->find_kword(icg, 0, "DISPLAY_TYPE_REFRESH")) >= 0) { @@ -313,7 +309,6 @@ cgats *icg /* input cgats structure */ if ((ti = icg->find_kword(icg, 0, "UI_SELECTORS")) >= 0) { if ((p->sel = strdup(icg->t[0].kdata[ti])) == NULL) { sprintf(p->err, "read_ccss: malloc failed"); - icg->del(icg); return 2; } } @@ -321,26 +316,22 @@ cgats *icg /* input cgats structure */ if ((ti = icg->find_kword(icg, 0, "REFERENCE")) >= 0) { if ((p->ref = strdup(icg->t[0].kdata[ti])) == NULL) { sprintf(p->err, "read_ccss: malloc failed"); - icg->del(icg); return 2; } } if ((ii = icg->find_kword(icg, 0, "SPECTRAL_BANDS")) < 0) { sprintf(p->err,"Input file doesn't contain keyword SPECTRAL_BANDS"); - icg->del(icg); return 1; } sp.spec_n = atoi(icg->t[0].kdata[ii]); if ((ii = icg->find_kword(icg, 0, "SPECTRAL_START_NM")) < 0) { sprintf(p->err,"Input file doesn't contain keyword SPECTRAL_START_NM"); - icg->del(icg); return 1; } sp.spec_wl_short = atof(icg->t[0].kdata[ii]); if ((ii = icg->find_kword(icg, 0, "SPECTRAL_END_NM")) < 0) { sprintf(p->err,"Input file doesn't contain keyword SPECTRAL_END_NM"); - icg->del(icg); return 1; } sp.spec_wl_long = atof(icg->t[0].kdata[ii]); @@ -364,7 +355,6 @@ cgats *icg /* input cgats structure */ if ((spi[j] = icg->find_field(icg, 0, buf)) < 0) { sprintf(p->err,"Input file doesn't contain field %s",buf); - icg->del(icg); return 1; } } @@ -372,7 +362,6 @@ cgats *icg /* input cgats structure */ if ((p->no_samp = icg->t[0].nsets) < 3) { sprintf(p->err, "Input file doesn't contain at least three spectral samples"); p->no_samp = 0; - icg->del(icg); /* Clean up */ return 1; } @@ -380,7 +369,6 @@ cgats *icg /* input cgats structure */ if ((p->samples = (xspect *)malloc(sizeof(xspect) * p->no_samp)) == NULL) { strcpy(p->err, "Malloc failed!"); p->no_samp = 0; - icg->del(icg); /* Clean up */ return 2; } @@ -478,8 +466,8 @@ static int set_ccss(ccss *p, char *orig, /* Originator (May be NULL) */ char *crdate, /* Creation date in ctime() format (May be NULL) */ char *desc, /* General description (optional) */ -char *disp, /* Display make and model (optional if tech) */ -char *tech, /* Display technology description (optional if disp) */ +char *disp, /* Display make and model (optional) */ +disptech dtech, /* Display technology enum */ int refrmode, /* Display refresh mode, -1 = unknown, 0 = n, 1 = yes */ char *sel, /* UI selector characters - NULL for none */ char *refd, /* Reference spectrometer description (optional) */ @@ -513,12 +501,7 @@ int no_samp /* Number of spectral samples */ return 2; } } - if (tech != NULL) { - if ((p->tech = strdup(tech)) == NULL) { - sprintf(p->err, "set_ccss: malloc tech failed"); - return 2; - } - } + p->dtech = dtech; p->refrmode = refrmode; if (sel != NULL) { if ((p->sel = strdup(sel)) == NULL) { diff --git a/xicc/ccss.h b/xicc/ccss.h index 0d2e128..924f045 100644 --- a/xicc/ccss.h +++ b/xicc/ccss.h @@ -33,7 +33,7 @@ struct _ccss { /* Set the contents of the ccss. return nz on error. */ /* (Makes copies of all parameters) */ int (*set_ccss)(struct _ccss *p, char *orig, char *cdate, - char *desc, char *disp, char *tech, int refrmode, char *sel, + char *desc, char *disp, disptech dtech, int refrmode, char *sel, char *ref, xspect *samples, int no_samp); /* write to a CGATS .ccss file */ @@ -58,7 +58,8 @@ struct _ccss { char *crdate; /* Creation date (in ctime() format). May be NULL */ char *desc; /* General Description (optional) */ char *disp; /* Description of the display (Manfrr and Model No) (optional if tech) */ - char *tech; /* Technology (CRT, LCD + backlight type etc.) (optional if disp) */ + disptech dtech; /* Display Technology enumeration (optional if disp) */ + char *tech; /* Technology string (Looked up from dtech enum) */ int refrmode; /* Refresh mode, -1 if unknown, 0 of no, 1 if yes */ char *sel; /* Optional UI selector characters. May be NULL */ char *ref; /* Name of reference spectrometer instrument (optional) */ diff --git a/xicc/ccttest.c b/xicc/ccttest.c index 9662678..28a3dc9 100644 --- a/xicc/ccttest.c +++ b/xicc/ccttest.c @@ -23,6 +23,7 @@ #include "xspect.h" #include "numlib.h" #include "plot.h" +#include "ui.h" #define PLANKIAN #define XRES 500 diff --git a/xicc/cgatsplot.c b/xicc/cgatsplot.c index 9fadf89..ccaa28a 100644 --- a/xicc/cgatsplot.c +++ b/xicc/cgatsplot.c @@ -23,9 +23,10 @@ #include "numlib.h" #include "icc.h" #include "cgats.h" -#include "plot.h" #include "xcolorants.h" #include "sort.h" +#include "plot.h" +#include "ui.h" void usage(void) { fprintf(stderr,"Simple 2D plot of CGATS .ti3 data\n"); diff --git a/xicc/cv.c b/xicc/cv.c index 5271bc4..7cd7927 100644 --- a/xicc/cv.c +++ b/xicc/cv.c @@ -17,6 +17,7 @@ #include #include #include "plot.h" +#include "ui.h" void usage(void); diff --git a/xicc/cvtest.c b/xicc/cvtest.c index 6d24572..a9fa59f 100644 --- a/xicc/cvtest.c +++ b/xicc/cvtest.c @@ -27,6 +27,7 @@ #endif #include "numlib.h" #include "plot.h" +#include "ui.h" #define MAX_PARM 40 /* Make > SHAPE_ORDS */ diff --git a/xicc/extractttag.c b/xicc/extractttag.c index 79b4085..2c26bda 100644 --- a/xicc/extractttag.c +++ b/xicc/extractttag.c @@ -1,6 +1,7 @@ /* * Extract a CGATS file from an ICC profile tag. + * (Can also extract a tag of unknown format as a binary lump). * * Author: Graeme W. Gill * Date: 2008/5/18 @@ -14,6 +15,9 @@ /* * TTBD: + * + * Should uncompress ZXML type tag using zlib. + * */ @@ -28,6 +32,7 @@ #include "numlib.h" #include "icc.h" #include "xicc.h" +#include "ui.h" #define MXTGNMS 30 @@ -60,6 +65,7 @@ main(int argc, char *argv[]) { icc *icco; icTagSignature sig; icmText *ro; + icmUnknown *uro; icmFile *ifp, *ofp; int verb = 0; int size = 0; @@ -135,11 +141,14 @@ main(int argc, char *argv[]) { sig = str2tag(tag_name); - if ((ro = (icmText *)icco->read_tag(icco, sig)) == NULL) + if ((ro = (icmText *)icco->read_tag_any(icco, sig)) == NULL) { error("%d, %s",icco->errc, icco->err); + } - if (ro->ttype != icSigTextType) { - error("Tag isn't TextType"); + if (ro->ttype == icmSigUnknownType) { + uro = (icmUnknown *)ro; + } else if (ro->ttype != icSigTextType) { + error("Tag isn't TextType or UnknownType"); } if (docal) { @@ -187,8 +196,14 @@ main(int argc, char *argv[]) { error("unable to open output file '%s'",out_name); } - if (ofp->write(ofp, ro->data, 1, ro->size-1) != (ro->size-1)) { - error("writing to file '%s' failed",out_name); + if (ro->ttype == icmSigUnknownType) { + if (ofp->write(ofp, uro->data, 1, uro->size) != (uro->size)) { + error("writing to file '%s' failed",out_name); + } + } else { + if (ofp->write(ofp, ro->data, 1, ro->size-1) != (ro->size-1)) { + error("writing to file '%s' failed",out_name); + } } if (ofp->del(ofp) != 0) { diff --git a/xicc/fakeCMY.c b/xicc/fakeCMY.c index 4387cd8..b27f2d1 100644 --- a/xicc/fakeCMY.c +++ b/xicc/fakeCMY.c @@ -31,6 +31,7 @@ #include "xicc.h" #include "cgats.h" #include "targen.h" +#include "ui.h" #define EXTRA_NEUTRAL 50 /* Crude way of increasing weighting */ diff --git a/xicc/fbview.c b/xicc/fbview.c index 53da99e..07a9170 100644 --- a/xicc/fbview.c +++ b/xicc/fbview.c @@ -25,6 +25,7 @@ #include "aconfig.h" #include "numlib.h" #include "icc.h" +#include "vrml.h" #define TRES 43 @@ -124,7 +125,7 @@ main( strcpy(out_name, in_name); if ((xl = strrchr(out_name, '.')) == NULL) /* Figure where extention is */ xl = out_name + strlen(out_name); - strcpy(xl,".wrl"); + xl[0] = '\000'; /* Remove extension */ /* Open up the file for reading */ if ((rd_fp = new_icmFileStd_name(in_name,"r")) == NULL) @@ -145,18 +146,8 @@ main( double aerr = 0.0; double nsamps = 0.0; icmLuBase *luo1, *luo2; - FILE *wrl; - struct { - double x, y, z; - double wx, wy, wz; - double r, g, b; - } axes[5] = { - { 0, 0, 50-GAMUT_LCENT, 2, 2, 100, .7, .7, .7 }, /* L axis */ - { 50, 0, 0-GAMUT_LCENT, 100, 2, 2, 1, 0, 0 }, /* +a (red) axis */ - { 0, -50, 0-GAMUT_LCENT, 2, 100, 2, 0, 0, 1 }, /* -b (blue) axis */ - { -50, 0, 0-GAMUT_LCENT, 100, 2, 2, 0, 1, 0 }, /* -a (green) axis */ - { 0, 50, 0-GAMUT_LCENT, 2, 100, 2, 1, 1, 0 }, /* +b (yellow) axis */ - }; + int doaxes = 1; + vrml *wrl; int i, j; @@ -180,53 +171,11 @@ main( error ("%d, %s",rd_icco->errc, rd_icco->err); } - if ((wrl = fopen(out_name,"w")) == NULL) { - fprintf(stderr,"Error opening output file '%s'\n",out_name); - return 2; - } - - /* Spit out a VRML 2 Object surface of gamut */ - - fprintf(wrl,"#VRML V2.0 utf8\n"); - fprintf(wrl,"\n"); - fprintf(wrl,"# Created by the Argyll CMS\n"); - fprintf(wrl,"Transform {\n"); - fprintf(wrl,"children [\n"); - fprintf(wrl," NavigationInfo {\n"); - fprintf(wrl," type \"EXAMINE\" # It's an object we examine\n"); - fprintf(wrl," } # We'll add our own light\n"); - fprintf(wrl,"\n"); - fprintf(wrl," DirectionalLight {\n"); - fprintf(wrl," direction 0 0 -1 # Light illuminating the scene\n"); - fprintf(wrl," direction 0 -1 0 # Light illuminating the scene\n"); - fprintf(wrl," }\n"); - fprintf(wrl,"\n"); - fprintf(wrl," Viewpoint {\n"); - fprintf(wrl," position 0 0 340 # Position we view from\n"); - fprintf(wrl," }\n"); - fprintf(wrl,"\n"); - if (doaxes != 0) { - fprintf(wrl,"# Lab axes as boxes:\n"); - for (i = 0; i < 5; i++) { - fprintf(wrl,"Transform { translation %f %f %f\n", axes[i].x, axes[i].y, axes[i].z); - fprintf(wrl,"\tchildren [\n"); - fprintf(wrl,"\t\tShape{\n"); - fprintf(wrl,"\t\t\tgeometry Box { size %f %f %f }\n", - axes[i].wx, axes[i].wy, axes[i].wz); - fprintf(wrl,"\t\t\tappearance Appearance { material Material "); - fprintf(wrl,"{ diffuseColor %f %f %f} }\n", axes[i].r, axes[i].g, axes[i].b); - fprintf(wrl,"\t\t}\n"); - fprintf(wrl,"\t]\n"); - fprintf(wrl,"}\n"); - } - fprintf(wrl,"\n"); + if ((wrl = new_vrml(out_name, doaxes, vrml_lab)) == NULL) { + error("new_vrml for '%s%s' failed\n",out_name,vrml_ext()); } - fprintf(wrl,"\n"); - fprintf(wrl,"Shape {\n"); - fprintf(wrl," geometry IndexedLineSet { \n"); - fprintf(wrl," coord Coordinate { \n"); - fprintf(wrl," point [\n"); + wrl->start_line_set(wrl, 0); i = 0; // for (co[0] = 0; co[0] < TRES; co[0]++) { @@ -269,33 +218,21 @@ main( aerr += absd; if (absd > 3.0) { - fprintf(wrl,"%f %f %f,\n",in[1], in[2], in[0]-GAMUT_LCENT); - fprintf(wrl,"%f %f %f,\n",check[1], check[2], check[0]-GAMUT_LCENT); + wrl->add_vertex(wrl, 0, in); + wrl->add_vertex(wrl, 0, check); i++; } } } // } - fprintf(wrl," ]\n"); - fprintf(wrl," }\n"); - fprintf(wrl," coordIndex [\n"); + wrl->make_lines(wrl, 0, 2); - for (j = 0; j < i; j++) { - fprintf(wrl,"%d, %d, -1,\n", j * 2, j * 2 + 1); - } - fprintf(wrl," ]\n"); - fprintf(wrl," }\n"); - fprintf(wrl,"} # end shape\n"); - - fprintf(wrl,"\n"); - fprintf(wrl," ] # end of children for world\n"); - fprintf(wrl,"}\n"); - - if (fclose(wrl) != 0) { - fprintf(stderr,"Error closing output file '%s'\n",out_name); + if (wrl->flush(wrl) != 0) { + fprintf(stderr,"Error writint output file '%s%s'\n",out_name,vrml_ext()); return 2; } + wrl->del(wrl); printf("bwd to fwd check complete, peak err = %f, avg err = %f\n",merr,aerr/nsamps); diff --git a/xicc/iccgamut.c b/xicc/iccgamut.c index bb97f26..a77653f 100644 --- a/xicc/iccgamut.c +++ b/xicc/iccgamut.c @@ -41,6 +41,8 @@ #include "xicc.h" #include "gamut.h" #include "counters.h" +#include "vrml.h" +#include "ui.h" static void diag_gamut(icxLuBase *p, double detail, int doaxes, double tlimit, double klimit, char *outname); @@ -54,9 +56,10 @@ void usage(char *diag) { fprintf(stderr,"Diagnostic: %s\n",diag); fprintf(stderr," -v Verbose\n"); fprintf(stderr," -d sres Surface resolution details 1.0 - 50.0\n"); - fprintf(stderr," -w emit VRML .wrl file as well as CGATS .gam file\n"); - fprintf(stderr," -n Don't add VRML axes or white/black point\n"); - fprintf(stderr," -k Add VRML markers for prim. & sec. \"cusp\" points\n"); + fprintf(stderr," -w emit %s %s file as well as CGATS .gam file\n",vrml_format(),vrml_ext()); + fprintf(stderr," -n Don't add %s axes or white/black point\n",vrml_format()); + fprintf(stderr," -k Add %s markers for prim. & sec. \"cusp\" points\n",vrml_format()); + fprintf(stderr," (Set env. ARGYLL_3D_DISP_FORMAT to VRML, X3D or X3DOM to change format)\n"); fprintf(stderr," -f function f = forward*, b = backwards\n"); fprintf(stderr," -i intent p = perceptual, r = relative colorimetric,\n"); fprintf(stderr," s = saturation, a = absolute (default), d = profile default\n"); @@ -479,20 +482,20 @@ main(int argc, char *argv[]) { if (special) { if (func != icmFwd) error("Must be forward direction for special plot"); - strcpy(xl,".wrl"); + xl[0] = '\000'; /* remove extension */ diag_gamut(luo, gamres, doaxes, tlimit/100.0, klimit/100.0, out_name); } else { /* Creat a gamut surface */ if ((gam = luo->get_gamut(luo, gamres)) == NULL) error ("%d, %s",xicco->errc, xicco->err); - if (gam->write_gam(gam,out_name)) + if (gam->write_gam(gam, out_name)) error ("write gamut failed on '%s'",out_name); if (vrml) { - strcpy(xl,".wrl"); + xl[0] = '\000'; /* remove extension */ if (gam->write_vrml(gam,out_name, doaxes, docusps)) - error ("write vrml failed on '%s'",out_name); + error ("write vrml failed on '%s%s'",out_name, vrml_ext()); } if (verb) { @@ -524,21 +527,10 @@ double detail, /* Gamut resolution detail */ int doaxes, /* Do Lab axes */ double tlimit, /* Total ink limit */ double klimit, /* K ink limit */ -char *outname /* Output VRML file */ +char *outname /* Output VRML/X3D file (no extension) */ ) { int i, j; - FILE *wrl; - struct { - double x, y, z; - double wx, wy, wz; - double r, g, b; - } axes[5] = { - { 0, 0, 50-GAMUT_LCENT, 2, 2, 100, .7, .7, .7 }, /* L axis */ - { 50, 0, 0-GAMUT_LCENT, 100, 2, 2, 1, 0, 0 }, /* +a (red) axis */ - { 0, -50, 0-GAMUT_LCENT, 2, 100, 2, 0, 0, 1 }, /* -b (blue) axis */ - { -50, 0, 0-GAMUT_LCENT, 100, 2, 2, 0, 1, 0 }, /* -a (green) axis */ - { 0, 50, 0-GAMUT_LCENT, 2, 100, 2, 1, 1, 0 }, /* +b (yellow) axis */ - }; + vrml *wrl; int vix; /* Vertex index */ DCOUNT(coa, MXDI, p->inputChan, 0, 0, 2); @@ -589,55 +581,10 @@ char *outname /* Output VRML file */ if (res < 2) res = 2; - if ((wrl = fopen(outname,"w")) == NULL) - error("Error opening wrl output file '%s'",outname); - - /* Spit out a VRML 2 Object surface of gamut */ - fprintf(wrl,"#VRML V2.0 utf8\n"); - fprintf(wrl,"\n"); - fprintf(wrl,"# Created by the Argyll CMS\n"); - fprintf(wrl,"Transform {\n"); - fprintf(wrl,"children [\n"); - fprintf(wrl," NavigationInfo {\n"); - fprintf(wrl," type \"EXAMINE\" # It's an object we examine\n"); - fprintf(wrl," } # We'll add our own light\n"); - fprintf(wrl,"\n"); - fprintf(wrl," DirectionalLight {\n"); - fprintf(wrl," direction 0 0 -1 # Light illuminating the scene\n"); - fprintf(wrl," direction 0 -1 0 # Light illuminating the scene\n"); - fprintf(wrl," }\n"); - fprintf(wrl,"\n"); - fprintf(wrl," Viewpoint {\n"); - fprintf(wrl," position 0 0 340 # Position we view from\n"); - fprintf(wrl," }\n"); - fprintf(wrl,"\n"); - if (doaxes != 0) { - fprintf(wrl,"# Lab axes as boxes:\n"); - for (i = 0; i < 5; i++) { - fprintf(wrl,"Transform { translation %f %f %f\n", axes[i].x, axes[i].y, axes[i].z); - fprintf(wrl,"\tchildren [\n"); - fprintf(wrl,"\t\tShape{\n"); - fprintf(wrl,"\t\t\tgeometry Box { size %f %f %f }\n", - axes[i].wx, axes[i].wy, axes[i].wz); - fprintf(wrl,"\t\t\tappearance Appearance { material Material "); - fprintf(wrl,"{ diffuseColor %f %f %f} }\n", axes[i].r, axes[i].g, axes[i].b); - fprintf(wrl,"\t\t}\n"); - fprintf(wrl,"\t]\n"); - fprintf(wrl,"}\n"); - } - fprintf(wrl,"\n"); - } - fprintf(wrl," Transform {\n"); - fprintf(wrl," translation 0 0 0\n"); - fprintf(wrl," children [\n"); - fprintf(wrl," Shape { \n"); - fprintf(wrl," geometry IndexedFaceSet {\n"); - fprintf(wrl," solid FALSE\n"); /* Don't back face cull */ - fprintf(wrl," convex TRUE\n"); - fprintf(wrl,"\n"); - fprintf(wrl," coord Coordinate { \n"); - fprintf(wrl," point [ # Verticy coordinates\n"); + if ((wrl = new_vrml(outname, doaxes, vrml_lab)) == NULL) + error("Error creating wrl output '%s%s'",outname,vrml_ext()); + wrl->start_line_set(wrl, 0); /* Start set 0 */ /* Itterate over all the faces in the device space */ /* generating the vertx positions. */ @@ -645,7 +592,7 @@ char *outname /* Output VRML file */ vix = 0; while(!DC_DONE(coa)) { int e, m1, m2; - double in[MXDI]; + double in[MXDI], xb, yb; double inl[MXDI]; double out[3]; double sum; @@ -666,111 +613,28 @@ char *outname /* Output VRML file */ /* Scan over 2D device space face */ for (x = 0; x < res; x++) { /* step over surface */ - in[m1] = x/(res - 1.0); + xb = in[m1] = x/(res - 1.0); for (y = 0; y < res; y++) { - in[m2] = y/(res - 1.0); + double rgb[3], rgb2[3]; + int v0, v1, v2, v3; + int ix[4]; - for (sum = 0.0, e = 0; e < p->inputChan; e++) { + yb = in[m2] = y/(res - 1.0); + + /* Check ink limit */ + for (sum = 0.0, e = 0; e < p->inputChan; e++) sum += inl[e] = in[e]; - } if (sum >= tlimit) { for (e = 0; e < p->inputChan; e++) inl[e] *= tlimit/sum; } if (p->inputChan >= 3 && inl[3] >= klimit) inl[3] = klimit; - p->lookup(p, out, inl); - fprintf(wrl,"%f %f %f,\n",out[1], out[2], out[0]-50.0); - vix++; - } - } - } - } - /* Increment index within block */ - DC_INC(coa); - } - - fprintf(wrl," ]\n"); - fprintf(wrl," }\n"); - fprintf(wrl,"\n"); - fprintf(wrl," coordIndex [ # Indexes of poligon Verticies \n"); - - /* Itterate over all the faces in the device space */ - /* generating the quadrilateral indexes. */ - DC_INIT(coa); - vix = 0; - while(!DC_DONE(coa)) { - int e, m1, m2; - double in[MXDI]; - - /* Scan only device surface */ - for (m1 = 0; m1 < p->inputChan; m1++) { - if (coa[m1] != 0) - continue; - - for (m2 = m1 + 1; m2 < p->inputChan; m2++) { - int x, y; - - if (coa[m2] != 0) - continue; - - for (e = 0; e < p->inputChan; e++) - in[e] = (double)coa[e]; /* Base value */ - - /* Scan over 2D device space face */ - /* Only output quads under the total ink limit */ - /* Scan over 2D device space face */ - for (x = 0; x < res; x++) { /* step over surface */ - for (y = 0; y < res; y++) { - if (x < (res-1) && y < (res-1)) { - fprintf(wrl,"%d, %d, %d, %d, -1\n", - vix, vix + 1, vix + 1 + res, vix + res); - } - vix++; - } - } - } - } - /* Increment index within block */ - DC_INC(coa); - } - - fprintf(wrl," ]\n"); - fprintf(wrl,"\n"); - fprintf(wrl," colorPerVertex TRUE\n"); - fprintf(wrl," color Color {\n"); - fprintf(wrl," color [ # RGB colors of each vertex\n"); - - /* Itterate over all the faces in the device space */ - /* generating the vertx colors. */ - DC_INIT(coa); - vix = 0; - while(!DC_DONE(coa)) { - int e, m1, m2; - double in[MXDI]; - - /* Scan only device surface */ - for (m1 = 0; m1 < p->inputChan; m1++) { - if (coa[m1] != 0) - continue; - - for (m2 = m1 + 1; m2 < p->inputChan; m2++) { - int x, y; - - if (coa[m2] != 0) - continue; - - for (e = 0; e < p->inputChan; e++) - in[e] = (double)coa[e]; /* Base value */ - /* Scan over 2D device space face */ - for (x = 0; x < res; x++) { /* step over surface */ - double xb = x/(res - 1.0); - for (y = 0; y < res; y++) { - int v0, v1, v2, v3; - double yb = y/(res - 1.0); - double rgb[3]; + /* Lookup L*a*b* value */ + p->lookup(p, out, inl); + /* Compute color */ for (v0 = 0, e = 0; e < p->inputChan; e++) v0 |= coa[e] ? (1 << e) : 0; /* Binary index */ @@ -785,7 +649,20 @@ char *outname /* Output VRML file */ + (1.0 - yb) * xb * col[v3][j] + yb * xb * col[v2][j]; } - fprintf(wrl,"%f %f %f,\n",rgb[1], rgb[2], rgb[0]); + /* re-order the color */ + rgb2[0] = rgb[1]; + rgb2[1] = rgb[2]; + rgb2[2] = rgb[0]; + wrl->add_col_vertex(wrl, 0, out, rgb2); + + /* Add the quad vertexes */ + if (x < (res-1) && y < (res-1)) { + ix[0] = vix; + ix[1] = vix + 1; + ix[2] = vix + 1 + res; + ix[3] = vix + res; + wrl->add_quad(wrl, 0, ix); + } vix++; } } @@ -795,25 +672,8 @@ char *outname /* Output VRML file */ DC_INC(coa); } - fprintf(wrl," ] \n"); - fprintf(wrl," }\n"); - fprintf(wrl," }\n"); - fprintf(wrl," appearance Appearance { \n"); - fprintf(wrl," material Material {\n"); - fprintf(wrl," transparency 0.0\n"); - fprintf(wrl," ambientIntensity 0.3\n"); - fprintf(wrl," shininess 0.5\n"); - fprintf(wrl," }\n"); - fprintf(wrl," }\n"); - fprintf(wrl," } # end Shape\n"); - fprintf(wrl," ]\n"); - fprintf(wrl," }\n"); - - fprintf(wrl,"\n"); - fprintf(wrl," ] # end of children for world\n"); - fprintf(wrl,"}\n"); - - if (fclose(wrl) != 0) - error("Error closing output file '%s'",outname); + wrl->make_quads_vc(wrl, 0, 0.0); /* Make set 0 with color per vertex and 0 transparence */ + + wrl->del(wrl); } diff --git a/xicc/icheck.c b/xicc/icheck.c index ed3c6e5..5f61d9a 100644 --- a/xicc/icheck.c +++ b/xicc/icheck.c @@ -12,6 +12,12 @@ * Please refer to License.txt file for details. */ +/* + Estimate PCS->device interpolation error by comparing + the interpolated PCS value in the cell to the PCS computed + from the corners of the cell. +*/ + /* TTBD: * */ @@ -26,23 +32,19 @@ #include "copyright.h" #include "aconfig.h" #include "icc.h" +#include "vrml.h" void usage(void) { fprintf(stderr,"Check PCS->Device Interpolation faults of ICC file, Version %s\n",ARGYLL_VERSION_STR); fprintf(stderr,"Author: Graeme W. Gill, licensed under the AGPL Version 3\n"); fprintf(stderr,"usage: icheck [-v] [-w] infile\n"); fprintf(stderr," -v verbose\n"); - fprintf(stderr," -w create VRML visualisation\n"); - fprintf(stderr," -x Use VRML axies\n"); + fprintf(stderr," -a Show all interpolation errors, not just worst\n"); + fprintf(stderr," -w create %s visualisation\n",vrml_format()); + fprintf(stderr," -x Use %s axies\n",vrml_format()); exit(1); } -FILE *start_vrml(char *name, int doaxes); -void start_line_set(FILE *wrl); -void add_vertex(FILE *wrl, double pp[3]); -void make_lines(FILE *wrl, int ppset); -void end_vrml(FILE *wrl); - int main( int argc, @@ -50,6 +52,7 @@ main( ) { int fa,nfa; /* argument we're looking at */ int verb = 0; + int doall = 0; int dovrml = 0; int doaxes = 0; char in_name[100]; @@ -65,7 +68,7 @@ main( icColorSpaceSignature ins, outs; /* Type of input and output spaces */ int inn; /* Number of input chanels */ icmLuAlgType alg; - FILE *wrl = NULL; + vrml *wrl = NULL; error_program = argv[0]; @@ -93,7 +96,7 @@ main( if (argv[fa][1] == 'v' || argv[fa][1] == 'V') { verb = 1; } - /* VRML */ + /* VRML/X3D */ else if (argv[fa][1] == 'w' || argv[fa][1] == 'W') { dovrml = 1; } @@ -101,6 +104,9 @@ main( else if (argv[fa][1] == 'x' || argv[fa][1] == 'X') { doaxes = 1; } + else if (argv[fa][1] == 'a') { + doall = 1; + } else if (argv[fa][1] == '?') usage(); else @@ -116,7 +122,7 @@ main( strcpy(out_name, in_name); if ((xl = strrchr(out_name, '.')) == NULL) /* Figure where extention is */ xl = out_name + strlen(out_name); - strcpy(xl,".wrl"); + xl[0] = '\000'; /* Remove extension */ /* Open up the file for reading */ if ((rd_fp = new_icmFileStd_name(in_name,"r")) == NULL) @@ -158,8 +164,10 @@ main( gres = lluob->lut->clutPoints; if (dovrml) { - wrl = start_vrml(out_name, doaxes); - start_line_set(wrl); + wrl = new_vrml(out_name, doaxes, vrml_lab); + if (wrl == NULL) + error("new_vrml failed for '%s%s'",out_name,vrml_ext()); + wrl->start_line_set(wrl, 0); } { @@ -188,9 +196,9 @@ main( /* For each corner of the PCS grid based at the current point, */ /* average the PCS and Device values */ m = 0; - for (cc[2] = 0; cc[2] < 2; cc[2]++, m++) { + for (cc[2] = 0; cc[2] < 2; cc[2]++) { for (cc[1] = 0; cc[1] < 2; cc[1]++) { - for (cc[0] = 0; cc[0] < 2; cc[0]++) { + for (cc[0] = 0; cc[0] < 2; cc[0]++, m++) { double dev[MAX_CHAN]; pcs[m][0] = (co[0] + cc[0])/(gres - 1.0); @@ -231,7 +239,7 @@ main( for (k = 0; k < inn; k++) adev[k] /= 8.0; - /* Compute worst case distance of PCS corners to average PCS */ + /* Compute worst case distance of PCS corners to PCS of average dev */ wpcsd = 0.0; for (m = 0; m < 8; m++) { double ss; @@ -243,7 +251,10 @@ main( if (ss > wpcsd) wpcsd = ss; } - wpcsd *= 0.75; /* Set threshold at 75% of most distant corner */ + wpcsd *= 0.15; /* Set threshold at 75% of most distant corner */ + +//printf("~1 wpcsd = %f\n",wpcsd); + /* Set a worst case */ if (wpcsd < 1.0) wpcsd = 1.0; @@ -277,14 +288,14 @@ main( if (ier > merr) merr = ier; - if (ier > wpcsd) { + if (doall || ier > wpcsd) { tcount++; printf("ier = %f, Dev = %f %f %f %f\n", ier, adev[0], adev[1], adev[2], adev[3]); if (dovrml) { - add_vertex(wrl, apcs); - add_vertex(wrl, check); + wrl->add_vertex(wrl, 0, apcs); + wrl->add_vertex(wrl, 0, check); } } @@ -299,8 +310,8 @@ main( } if (dovrml) { - make_lines(wrl, 2); - end_vrml(wrl); + wrl->make_lines(wrl, 0, 2); + wrl->del(wrl); } aerr /= ccount; @@ -319,214 +330,3 @@ main( return 0; } -/* ------------------------------------------------ */ -/* Some simple functions to do basix VRML work */ - -#define GAMUT_LCENT 50.0 -static int npoints = 0; -static int paloc = 0; -static struct { double pp[3]; } *pary; - -static void Lab2RGB(double *out, double *in); - -FILE *start_vrml(char *name, int doaxes) { - FILE *wrl; - struct { - double x, y, z; - double wx, wy, wz; - double r, g, b; - } axes[5] = { - { 0, 0, 50-GAMUT_LCENT, 2, 2, 100, .7, .7, .7 }, /* L axis */ - { 50, 0, 0-GAMUT_LCENT, 100, 2, 2, 1, 0, 0 }, /* +a (red) axis */ - { 0, -50, 0-GAMUT_LCENT, 2, 100, 2, 0, 0, 1 }, /* -b (blue) axis */ - { -50, 0, 0-GAMUT_LCENT, 100, 2, 2, 0, 1, 0 }, /* -a (green) axis */ - { 0, 50, 0-GAMUT_LCENT, 2, 100, 2, 1, 1, 0 }, /* +b (yellow) axis */ - }; - int i; - - if ((wrl = fopen(name,"w")) == NULL) - error("Error opening VRML file '%s'\n",name); - - npoints = 0; - - fprintf(wrl,"#VRML V2.0 utf8\n"); - fprintf(wrl,"\n"); - fprintf(wrl,"# Created by the Argyll CMS\n"); - fprintf(wrl,"Transform {\n"); - fprintf(wrl,"children [\n"); - fprintf(wrl," NavigationInfo {\n"); - fprintf(wrl," type \"EXAMINE\" # It's an object we examine\n"); - fprintf(wrl," } # We'll add our own light\n"); - fprintf(wrl,"\n"); - fprintf(wrl," DirectionalLight {\n"); - fprintf(wrl," direction 0 0 -1 # Light illuminating the scene\n"); - fprintf(wrl," direction 0 -1 0 # Light illuminating the scene\n"); - fprintf(wrl," }\n"); - fprintf(wrl,"\n"); - fprintf(wrl," Viewpoint {\n"); - fprintf(wrl," position 0 0 340 # Position we view from\n"); - fprintf(wrl," }\n"); - fprintf(wrl,"\n"); - if (doaxes != 0) { - fprintf(wrl,"# Lab axes as boxes:\n"); - for (i = 0; i < 5; i++) { - fprintf(wrl,"Transform { translation %f %f %f\n", axes[i].x, axes[i].y, axes[i].z); - fprintf(wrl,"\tchildren [\n"); - fprintf(wrl,"\t\tShape{\n"); - fprintf(wrl,"\t\t\tgeometry Box { size %f %f %f }\n", - axes[i].wx, axes[i].wy, axes[i].wz); - fprintf(wrl,"\t\t\tappearance Appearance { material Material "); - fprintf(wrl,"{ diffuseColor %f %f %f} }\n", axes[i].r, axes[i].g, axes[i].b); - fprintf(wrl,"\t\t}\n"); - fprintf(wrl,"\t]\n"); - fprintf(wrl,"}\n"); - } - fprintf(wrl,"\n"); - } - - return wrl; -} - -void -start_line_set(FILE *wrl) { - - fprintf(wrl,"\n"); - fprintf(wrl,"Shape {\n"); - fprintf(wrl," geometry IndexedLineSet { \n"); - fprintf(wrl," coord Coordinate { \n"); - fprintf(wrl," point [\n"); -} - -void add_vertex(FILE *wrl, double pp[3]) { - - fprintf(wrl,"%f %f %f,\n",pp[1], pp[2], pp[0]-GAMUT_LCENT); - - if (paloc < (npoints+1)) { - paloc = (paloc + 10) * 2; - if (pary == NULL) - pary = malloc(paloc * 3 * sizeof(double)); - else - pary = realloc(pary, paloc * 3 * sizeof(double)); - - if (pary == NULL) - error ("Malloc failed"); - } - pary[npoints].pp[0] = pp[0]; - pary[npoints].pp[1] = pp[1]; - pary[npoints].pp[2] = pp[2]; - npoints++; -} - - -void make_lines(FILE *wrl, int ppset) { - int i, j; - - fprintf(wrl," ]\n"); - fprintf(wrl," }\n"); - fprintf(wrl," coordIndex [\n"); - - for (i = 0; i < npoints;) { - for (j = 0; j < ppset; j++, i++) { - fprintf(wrl,"%d, ", i); - } - fprintf(wrl,"-1,\n"); - } - fprintf(wrl," ]\n"); - - /* Color */ - fprintf(wrl," colorPerVertex TRUE\n"); - fprintf(wrl," color Color {\n"); - fprintf(wrl," color [ # RGB colors of each vertex\n"); - - for (i = 0; i < npoints; i++) { - double rgb[3], Lab[3]; - Lab[0] = pary[i].pp[0]; - Lab[1] = pary[i].pp[1]; - Lab[2] = pary[i].pp[2]; - Lab2RGB(rgb, Lab); - fprintf(wrl," %f %f %f,\n", rgb[0], rgb[1], rgb[2]); - } - fprintf(wrl," ] \n"); - fprintf(wrl," }\n"); - /* End color */ - - fprintf(wrl," }\n"); - fprintf(wrl,"} # end shape\n"); - -} - -void end_vrml(FILE *wrl) { - - fprintf(wrl,"\n"); - fprintf(wrl," ] # end of children for world\n"); - fprintf(wrl,"}\n"); - - if (fclose(wrl) != 0) - error("Error closing VRML file\n"); -} - - -/* Convert a gamut Lab value to an RGB value for display purposes */ -static void -Lab2RGB(double *out, double *in) { - double L = in[0], a = in[1], b = in[2]; - double x,y,z,fx,fy,fz; - double R, G, B; - - /* Scale so that black is visible */ - L = L * (100 - 40.0)/100.0 + 40.0; - - /* First convert to XYZ using D50 white point */ - if (L > 8.0) { - fy = (L + 16.0)/116.0; - y = pow(fy,3.0); - } else { - y = L/903.2963058; - fy = 7.787036979 * y + 16.0/116.0; - } - - fx = a/500.0 + fy; - if (fx > 24.0/116.0) - x = pow(fx,3.0); - else - x = (fx - 16.0/116.0)/7.787036979; - - fz = fy - b/200.0; - if (fz > 24.0/116.0) - z = pow(fz,3.0); - else - z = (fz - 16.0/116.0)/7.787036979; - - x *= 0.9642; /* Multiply by white point, D50 */ - y *= 1.0; - z *= 0.8249; - - /* Now convert to sRGB values */ - R = x * 3.2410 + y * -1.5374 + z * -0.4986; - G = x * -0.9692 + y * 1.8760 + z * 0.0416; - B = x * 0.0556 + y * -0.2040 + z * 1.0570; - - if (R < 0.0) - R = 0.0; - else if (R > 1.0) - R = 1.0; - - if (G < 0.0) - G = 0.0; - else if (G > 1.0) - G = 1.0; - - if (B < 0.0) - B = 0.0; - else if (B > 1.0) - B = 1.0; - - R = pow(R, 1.0/2.2); - G = pow(G, 1.0/2.2); - B = pow(B, 1.0/2.2); - - out[0] = R; - out[1] = G; - out[2] = B; -} - diff --git a/xicc/monctest.c b/xicc/monctest.c index 8630099..a97b1b5 100644 --- a/xicc/monctest.c +++ b/xicc/monctest.c @@ -26,8 +26,9 @@ #include "copyright.h" #include "aconfig.h" #include "numlib.h" -#include "plot.h" #include "moncurve.h" +#include "plot.h" +#include "ui.h" double lin(double x, double xa[], double ya[], int n); void usage(void); @@ -141,17 +142,24 @@ int main() { /* Create X values */ for (i = 0; i < pnts; i++) - xa[i] = i/(pnts-1.0); + xa[i] = pow(i/(pnts-1.0), 1.0); + + for (i = 0; i < pnts; i++) + ya[i] = pow(xa[i], ex); + + } else if (n == 1) { /* inverse exponential function aproximation */ + double ex = 1.0/2.4; + pnts = MAX_PNTS; + + printf("Trial %d, no points = %d, exponential %f\n",n,pnts,ex); + + /* Create X values */ + for (i = 0; i < pnts; i++) + xa[i] = pow(i/(pnts-1.0), 3.0); for (i = 0; i < pnts; i++) ya[i] = pow(xa[i], ex); - } else if (n < (TSETS+1)) /* Standard versions */ { - pnts = t1p[n-1]; - for (i = 0; i < pnts; i++) { - xa[i] = t1xa[n-1][i]; - ya[i] = t1ya[n-1][i]; - } #endif } else { /* Random versions */ diff --git a/xicc/mpp.c b/xicc/mpp.c index 02b3019..86b6c30 100644 --- a/xicc/mpp.c +++ b/xicc/mpp.c @@ -90,9 +90,17 @@ /* accuracy worse!) */ /* Transfer curve parameter (wiggle) minimisation weight */ -#define TRANS_BASE 0.2 /* 0 & 1 harmonic parameter weight */ -#define TRANS_HBASE 0.8 /* 2nd harmonic and above base parameter weight */ -#define SHAPE_PMW 0.2 /* Shape parameter (wiggle) minimisation weight */ +//#define TRANS_BASE 0.2 /* 0 & 1 harmonic parameter weight */ +//#define TRANS_HBASE 0.8 /* 2nd harmonic and above base parameter weight */ +#define TRANS_HW01 0.01 /* 0 & 1 harmonic weights */ +#define TRANS_HBREAK 3 /* Harmonic that has HWBR */ +//#define TRANS_HWBR 0.5 /* Base weight of harmonics HBREAK up */ +//#define TRANS_HWINC 0.5 /* Increase in weight for each harmonic above HWBR */ +#define TRANS_HWBR 0.5 /* Base weight of harmonics HBREAK up */ +#define TRANS_HWINC 0.5 /* Increase in weight for each harmonic above HWBR */ + +//#define SHAPE_PMW 0.2 /* Shape parameter (wiggle) minimisation weight */ +#define SHAPE_PMW 10.0 /* Shape parameter (wiggle) minimisation weight */ #define COMB_PMW 0.008 /* Primary combination anchor point distance weight */ #define verbo stdout @@ -1916,7 +1924,20 @@ static double efunc2(void *adata, double pv[]) { double w; for (k = 0; k < p->cord; k++) { i = m * p->cord + k; + +#ifdef NEVER w = (k < 2) ? TRANS_BASE : k * TRANS_HBASE; /* Increase weight with harmonics */ +#else + /* Weigh to suppress ripples */ + if (k <= 1) { /* Use TRANS_HW01 */ + w = TRANS_HW01; + } else if (k <= TRANS_HBREAK) { /* Blend from TRANS_HW01 to TRANS_HWBR */ + double bl = (k - 1.0)/(TRANS_HBREAK - 1.0); + w = (1.0 - bl) * TRANS_HW01 + bl * TRANS_HWBR; + } else { /* Use TRANS_HWBR */ + w = TRANS_HWBR + (k-TRANS_HBREAK) * TRANS_HWINC; + } +#endif smv += w * pv[i] * pv[i]; } } @@ -2224,7 +2245,19 @@ for (m = 0; m < p->n; m++) { double w; for (k = 0; k < p->cord; k++) { i = m * p->cord + k; +#ifdef NEVER w = (k < 2) ? TRANS_BASE : k * TRANS_HBASE; /* Increase weight with harmonics */ +#else + /* Weigh to suppress ripples */ + if (k <= 1) { /* Use TRANS_HW01 */ + w = TRANS_HW01; + } else if (k <= TRANS_HBREAK) { /* Blend from TRANS_HW01 to TRANS_HWBR */ + double bl = (k - 1.0)/(TRANS_HBREAK - 1.0); + w = (1.0 - bl) * TRANS_HW01 + bl * TRANS_HWBR; + } else { /* Use TRANS_HWBR */ + w = TRANS_HWBR + (k-TRANS_HBREAK) * TRANS_HWINC; + } +#endif dv[i] += w * tt * pv[i]; /* Del in rv due to del in pv */ smv += w * pv[i] * pv[i]; } @@ -3597,24 +3630,24 @@ static int create( switch (quality) { case 0: /* Low */ useshape = 0; - mxtcord = 3; - maxit = 2; + mxtcord = 8; + maxit = 3; break; case 1: default: /* Medium */ useshape = 1; - mxtcord = 4; - maxit = 2; + mxtcord = 10; + maxit = 4; break; case 2: /* High */ useshape = 1; - mxtcord = 5; - maxit = 3; + mxtcord = 14; + maxit = 5; break; case 3: /* Ultra high */ useshape = 1; - mxtcord = 10; /* Is more actually better ? */ - maxit = 8; + mxtcord = 20; /* Is more actually better ? */ + maxit = 10; break; case 99: /* Special, simple model */ useshape = 0; diff --git a/xicc/mpp.h b/xicc/mpp.h index 826c4de..26fa3a8 100644 --- a/xicc/mpp.h +++ b/xicc/mpp.h @@ -27,7 +27,7 @@ /* ------------------------------------------------------------------------------ */ #define MPP_MXINKS 8 /* Would like to be ICX_MXINKS but need more dynamic allocation */ -#define MPP_MXTCORD 10 /* Maximum shaper harmonic orders to use */ +#define MPP_MXTCORD 20 /* Maximum shaper harmonic orders to use */ #define MPP_MXCCOMB (1 << MPP_MXINKS) /* Maximum number of primary combinations */ #define MPP_MXPARMS (MPP_MXINKS * MPP_MXTCORD + (MPP_MXINKS * MPP_MXCCOMB/2) + MPP_MXCCOMB) /* Maximum total parameters for a band */ diff --git a/xicc/mpplu.c b/xicc/mpplu.c index a2bb9ad..11ddb76 100644 --- a/xicc/mpplu.c +++ b/xicc/mpplu.c @@ -26,6 +26,8 @@ #include "numlib.h" #include "xicc.h" #include "counters.h" +#include "vrml.h" +#include "ui.h" void usage(void) { fprintf(stderr,"Translate colors through an MPP profile, V1.00\n"); @@ -41,13 +43,13 @@ void usage(void) { fprintf(stderr," 1931_2 (def), 1964_10, S&B 1955_2, shaw, J&V 1978_2\n"); fprintf(stderr," -u Use Fluorescent Whitening Agent compensation\n"); fprintf(stderr," -g Create gamut output\n"); - fprintf(stderr," -w Create gamut VRML as well\n"); - fprintf(stderr," -n Don't add VRML axes\n"); + fprintf(stderr," -w Create gamut %s as well\n",vrml_format()); + fprintf(stderr," -n Don't add %s axes\n",vrml_format()); fprintf(stderr," -a n Gamut transparency level\n"); fprintf(stderr," -d n Gamut surface detail level\n"); fprintf(stderr," -t num Invoke debugging test code \"num\" 1..n\n"); fprintf(stderr," 1 - check partial derivative for device input\n"); - fprintf(stderr," 2 - create overlap diagnostic VRML gamut surface\n"); + fprintf(stderr," 2 - create overlap diagnostic %s gamut surface\n",vrml_format()); fprintf(stderr,"\n"); fprintf(stderr," The colors to be translated should be fed into stdin,\n"); fprintf(stderr," one input color per line, white space separated.\n"); @@ -67,8 +69,8 @@ main(int argc, char *argv[]) { int verb = 0; int test = 0; /* special test code */ int dogam = 0; /* Create gamut */ - int dowrl = 0; /* Create VRML gamut */ - int doaxes = 1; /* Create VRML axes */ + int dowrl = 0; /* Create VRML/X3D gamut */ + int doaxes = 1; /* Create VRML/X3D axes */ double trans = 0.0; /* Transparency */ double gamres = 0.0; /* Gamut resolution */ int repYxy = 0; /* Report Yxy */ @@ -250,13 +252,13 @@ main(int argc, char *argv[]) { else if (argv[fa][1] == 'g' || argv[fa][1] == 'G') dogam = 1; - /* VRML plot */ + /* VRML/X3D plot */ else if (argv[fa][1] == 'w' || argv[fa][1] == 'W') { dogam = 1; dowrl = 1; } - /* No VRML axes */ + /* No VRML/X3D axes */ else if (argv[fa][1] == 'n' || argv[fa][1] == 'N') { doaxes = 0; } @@ -415,8 +417,7 @@ main(int argc, char *argv[]) { strcpy(gam_name, prof_name); if ((xl = strrchr(gam_name, '.')) == NULL) /* Figure where extention is */ xl = gam_name + strlen(gam_name); - - strcpy(xl,".wrl"); + xl[0] = '\000'; /* Remove extension */ diag_gamut(mppo, gamres, doaxes, trans, gam_name); } else { @@ -434,15 +435,14 @@ main(int argc, char *argv[]) { strcpy(gam_name, prof_name); if ((xl = strrchr(gam_name, '.')) == NULL) /* Figure where extention is */ xl = gam_name + strlen(gam_name); - strcpy(xl,".gam"); - if (gam->write_gam(gam,gam_name)) + if (gam->write_gam(gam, gam_name)) error ("write gamut failed on '%s'",gam_name); if (dowrl) { - strcpy(xl,".wrl"); + xl[0] = '\000'; if (gam->write_vrml(gam,gam_name, doaxes, docusps)) - error ("write vrml failed on '%s'",gam_name); + error ("write vrml failed on '%s%s'",gam_name,vrml_ext()); } gam->del(gam); @@ -602,21 +602,10 @@ mpp *p, /* This */ double detail, /* Gamut resolution detail */ int doaxes, double trans, /* Transparency */ -char *outname /* Output VRML file */ +char *outname /* Output VRML/X3D file (no extension) */ ) { int i, j; - FILE *wrl; - struct { - double x, y, z; - double wx, wy, wz; - double r, g, b; - } axes[5] = { - { 0, 0, 50-GAMUT_LCENT, 2, 2, 100, .7, .7, .7 }, /* L axis */ - { 50, 0, 0-GAMUT_LCENT, 100, 2, 2, 1, 0, 0 }, /* +a (red) axis */ - { 0, -50, 0-GAMUT_LCENT, 2, 100, 2, 0, 0, 1 }, /* -b (blue) axis */ - { -50, 0, 0-GAMUT_LCENT, 100, 2, 2, 0, 1, 0 }, /* -a (green) axis */ - { 0, 50, 0-GAMUT_LCENT, 2, 100, 2, 1, 1, 0 }, /* +b (yellow) axis */ - }; + vrml *wrl; int vix; /* Vertex index */ DCOUNT(coa, MAX_CHAN, p->n, 0, 0, 2); double col[MPP_MXCCOMB][3]; /* Color asigned to each major vertex */ @@ -661,55 +650,10 @@ char *outname /* Output VRML file */ if (res < 2) res = 2; - if ((wrl = fopen(outname,"w")) == NULL) - error("Error opening wrl output file '%s'",outname); - - /* Spit out a VRML 2 Object surface of gamut */ - fprintf(wrl,"#VRML V2.0 utf8\n"); - fprintf(wrl,"\n"); - fprintf(wrl,"# Created by the Argyll CMS\n"); - fprintf(wrl,"Transform {\n"); - fprintf(wrl,"children [\n"); - fprintf(wrl," NavigationInfo {\n"); - fprintf(wrl," type \"EXAMINE\" # It's an object we examine\n"); - fprintf(wrl," } # We'll add our own light\n"); - fprintf(wrl,"\n"); - fprintf(wrl," DirectionalLight {\n"); - fprintf(wrl," direction 0 0 -1 # Light illuminating the scene\n"); - fprintf(wrl," direction 0 -1 0 # Light illuminating the scene\n"); - fprintf(wrl," }\n"); - fprintf(wrl,"\n"); - fprintf(wrl," Viewpoint {\n"); - fprintf(wrl," position 0 0 340 # Position we view from\n"); - fprintf(wrl," }\n"); - fprintf(wrl,"\n"); - if (doaxes != 0) { - fprintf(wrl,"# Lab axes as boxes:\n"); - for (i = 0; i < 5; i++) { - fprintf(wrl,"Transform { translation %f %f %f\n", axes[i].x, axes[i].y, axes[i].z); - fprintf(wrl,"\tchildren [\n"); - fprintf(wrl,"\t\tShape{\n"); - fprintf(wrl,"\t\t\tgeometry Box { size %f %f %f }\n", - axes[i].wx, axes[i].wy, axes[i].wz); - fprintf(wrl,"\t\t\tappearance Appearance { material Material "); - fprintf(wrl,"{ diffuseColor %f %f %f} }\n", axes[i].r, axes[i].g, axes[i].b); - fprintf(wrl,"\t\t}\n"); - fprintf(wrl,"\t]\n"); - fprintf(wrl,"}\n"); - } - fprintf(wrl,"\n"); - } - fprintf(wrl," Transform {\n"); - fprintf(wrl," translation 0 0 0\n"); - fprintf(wrl," children [\n"); - fprintf(wrl," Shape { \n"); - fprintf(wrl," geometry IndexedFaceSet {\n"); - fprintf(wrl," solid FALSE\n"); /* Don't back face cull */ - fprintf(wrl," convex TRUE\n"); - fprintf(wrl,"\n"); - fprintf(wrl," coord Coordinate { \n"); - fprintf(wrl," point [ # Verticy coordinates\n"); + if ((wrl = new_vrml(outname, doaxes, vrml_lab)) == NULL) + error("new_vrml faile for file '%s%s'",outname,vrml_ext()); + wrl->start_line_set(wrl, 0); /* Itterate over all the faces in the device space */ /* generating the vertx positions. */ @@ -720,6 +664,7 @@ char *outname /* Output VRML file */ double in[MAX_CHAN]; double out[3]; double sum; + double xb, yb; /* Scan only device surface */ for (m1 = 0; m1 < p->n; m1++) { @@ -737,57 +682,32 @@ char *outname /* Output VRML file */ /* Scan over 2D device space face */ for (x = 0; x < res; x++) { /* step over surface */ - in[m1] = x/(res - 1.0); + xb = in[m1] = x/(res - 1.0); for (y = 0; y < res; y++) { - in[m2] = y/(res - 1.0); + int v0, v1, v2, v3; + double rgb[3]; + yb = in[m2] = y/(res - 1.0); + /* Lookup PCS value */ p->lookup(p, out, in); - fprintf(wrl,"%f %f %f,\n",out[1], out[2], out[0]-50.0); - vix++; - } - } - } - } - /* Increment index within block */ - DC_INC(coa); - } - - fprintf(wrl," ]\n"); - fprintf(wrl," }\n"); - fprintf(wrl,"\n"); - fprintf(wrl," coordIndex [ # Indexes of poligon Verticies \n"); - /* Itterate over all the faces in the device space */ - /* generating the quadrilateral indexes. */ - DC_INIT(coa); - vix = 0; - while(!DC_DONE(coa)) { - int e, m1, m2; - double in[MAX_CHAN]; - double sum; - - /* Scan only device surface */ - for (m1 = 0; m1 < p->n; m1++) { - if (coa[m1] != 0) - continue; - - for (m2 = m1 + 1; m2 < p->n; m2++) { - int x, y; - - if (coa[m2] != 0) - continue; - - for (sum = 0.0, e = 0; e < p->n; e++) - in[e] = (double)coa[e]; /* Base value */ + /* Create a color */ + for (v0 = 0, e = 0; e < p->n; e++) + v0 |= coa[e] ? (1 << e) : 0; /* Binary index */ - /* Scan over 2D device space face */ - for (x = 0; x < res; x++) { /* step over surface */ - for (y = 0; y < res; y++) { + v1 = v0 | (1 << m2); /* Y offset */ + v2 = v0 | (1 << m2) | (1 << m1); /* X+Y offset */ + v3 = v0 | (1 << m1); /* Y offset */ - if (x < (res-1) && y < (res-1)) { - fprintf(wrl,"%d, %d, %d, %d, -1\n", - vix, vix + 1, vix + 1 + res, vix + res); + /* Linear interp between the main verticies */ + for (j = 0; j < 3; j++) { + rgb[j] = (1.0 - yb) * (1.0 - xb) * col[v0][j] + + yb * (1.0 - xb) * col[v1][j] + + (1.0 - yb) * xb * col[v3][j] + + yb * xb * col[v2][j]; } + + wrl->add_col_vertex(wrl, 0, out, rgb); vix++; } } @@ -797,14 +717,8 @@ char *outname /* Output VRML file */ DC_INC(coa); } - fprintf(wrl," ]\n"); - fprintf(wrl,"\n"); - fprintf(wrl," colorPerVertex TRUE\n"); - fprintf(wrl," color Color {\n"); - fprintf(wrl," color [ # RGB colors of each vertex\n"); - /* Itterate over all the faces in the device space */ - /* generating the vertx colors. */ + /* generating the quadrilateral indexes. */ DC_INIT(coa); vix = 0; while(!DC_DONE(coa)) { @@ -828,27 +742,16 @@ char *outname /* Output VRML file */ /* Scan over 2D device space face */ for (x = 0; x < res; x++) { /* step over surface */ - double xb = x/(res - 1.0); for (y = 0; y < res; y++) { - int v0, v1, v2, v3; - double yb = y/(res - 1.0); - double rgb[3]; - - for (v0 = 0, e = 0; e < p->n; e++) - v0 |= coa[e] ? (1 << e) : 0; /* Binary index */ - - v1 = v0 | (1 << m2); /* Y offset */ - v2 = v0 | (1 << m2) | (1 << m1); /* X+Y offset */ - v3 = v0 | (1 << m1); /* Y offset */ - /* Linear interp between the main verticies */ - for (j = 0; j < 3; j++) { - rgb[j] = (1.0 - yb) * (1.0 - xb) * col[v0][j] - + yb * (1.0 - xb) * col[v1][j] - + (1.0 - yb) * xb * col[v3][j] - + yb * xb * col[v2][j]; + if (x < (res-1) && y < (res-1)) { + int ix[4]; + ix[0] = vix; + ix[1] = vix + 1; + ix[2] = vix + 1 + res; + ix[3] = vix + res; + wrl->add_quad(wrl, 0, ix); } - fprintf(wrl,"%f %f %f,\n",rgb[1], rgb[2], rgb[0]); vix++; } } @@ -858,26 +761,12 @@ char *outname /* Output VRML file */ DC_INC(coa); } - fprintf(wrl," ] \n"); - fprintf(wrl," }\n"); - fprintf(wrl," }\n"); - fprintf(wrl," appearance Appearance { \n"); - fprintf(wrl," material Material {\n"); - fprintf(wrl," transparency %f\n",trans); - fprintf(wrl," ambientIntensity 0.3\n"); - fprintf(wrl," shininess 0.5\n"); - fprintf(wrl," }\n"); - fprintf(wrl," }\n"); - fprintf(wrl," } # end Shape\n"); - fprintf(wrl," ]\n"); - fprintf(wrl," }\n"); - - fprintf(wrl,"\n"); - fprintf(wrl," ] # end of children for world\n"); - fprintf(wrl,"}\n"); - - if (fclose(wrl) != 0) - error("Error closing output file '%s'",outname); + wrl->make_quads_vc(wrl, 0, trans); + + if (wrl->flush(wrl) != 0) + error("Error closing output file '%s%s'",outname,vrml_ext()); + + wrl->del(wrl); } /* -------------------------------------------- */ diff --git a/xicc/revfix.c b/xicc/revfix.c index ee9662a..2add264 100644 --- a/xicc/revfix.c +++ b/xicc/revfix.c @@ -34,6 +34,7 @@ #include "aconfig.h" #include "numlib.h" #include "xicc.h" +#include "ui.h" #define USE_CAM_CLIP_OPT /* Clip in CAM Jab space rather than Lab */ #undef DEBUG /* Print each value changed */ diff --git a/xicc/specplot.c b/xicc/specplot.c index 8e52726..9de4645 100644 --- a/xicc/specplot.c +++ b/xicc/specplot.c @@ -24,6 +24,7 @@ #include "xspect.h" #include "numlib.h" #include "plot.h" +#include "ui.h" #define PLANKIAN #define XRES 500 diff --git a/xicc/specsubsamp.c b/xicc/specsubsamp.c index b13ad94..4163ee2 100644 --- a/xicc/specsubsamp.c +++ b/xicc/specsubsamp.c @@ -21,7 +21,7 @@ #include #include "xspect.h" #include "numlib.h" - +#include "ui.h" void usage(void) { fprintf(stderr,"Downsample spectral data\n"); diff --git a/xicc/spectest.c b/xicc/spectest.c index 1c92df4..c340e98 100644 --- a/xicc/spectest.c +++ b/xicc/spectest.c @@ -34,6 +34,7 @@ #ifdef DOPLOT #include "plot.h" #endif +#include "ui.h" /* Spectrolino filter "D65" illuminant */ diff --git a/xicc/spectest2.c b/xicc/spectest2.c index e9c1754..3fd574f 100644 --- a/xicc/spectest2.c +++ b/xicc/spectest2.c @@ -32,6 +32,7 @@ #ifdef DOPLOT #include "plot.h" #endif +#include "ui.h" /* Normal 'A' spectra, then UV filtered version */ diff --git a/xicc/tiffgamut.c b/xicc/tiffgamut.c index 9423eae..9ddb62b 100644 --- a/xicc/tiffgamut.c +++ b/xicc/tiffgamut.c @@ -22,6 +22,9 @@ * Need to cope with profile not having black point. * * How to cope with no profile, therefore no white or black point ? + * + * Should we have a median filter option, to ignore small groups + * of extreme pixel values, rathar than total small numbers using -f ? */ @@ -42,6 +45,8 @@ #include "gamut.h" #include "xicc.h" #include "sort.h" +#include "vrml.h" +#include "ui.h" #undef NOCAMGAM_CLIP /* No clip to CAM gamut before CAM lookup */ #undef DEBUG /* Dump filter cell contents */ @@ -58,14 +63,15 @@ void del_filter(); void usage(void) { int i; - fprintf(stderr,"Create VRML image of the gamut surface of a TIFF or JPEG, Version %s\n",ARGYLL_VERSION_STR); + fprintf(stderr,"Create gamut surface of a TIFF or JPEG, Version %s\n",ARGYLL_VERSION_STR); fprintf(stderr,"Author: Graeme W. Gill, licensed under the AGPL Version 3\n"); fprintf(stderr,"usage: tiffgamut [-v level] [profile.icm | embedded.tif/jpg] infile1.tif/jpg [infile2.tif/jpg ...] \n"); fprintf(stderr," -v Verbose\n"); fprintf(stderr," -d sres Surface resolution details 1.0 - 50.0\n"); - fprintf(stderr," -w emit VRML .wrl file as well as CGATS .gam file\n"); - fprintf(stderr," -n Don't add VRML axes or white/black point\n"); - fprintf(stderr," -k Add markers for prim. & sec. \"cusp\" points\n"); + fprintf(stderr," -w emit %s %s file as well as CGATS .gam file\n",vrml_format(),vrml_ext()); + fprintf(stderr," -n Don't add %s axes or white/black point\n",vrml_format()); + fprintf(stderr," -k Add %s markers for prim. & sec. \"cusp\" points\n",vrml_format()); + fprintf(stderr," (set env. ARGYLL_3D_DISP_FORMAT to VRML, X3D or X3DOM to change format)\n"); fprintf(stderr," -f perc Filter by popularity, perc = percent to use\n"); fprintf(stderr," -i intent p = perceptual, r = relative colorimetric,\n"); fprintf(stderr," s = saturation, a = absolute (default), d = profile default\n"); @@ -325,7 +331,7 @@ main(int argc, char *argv[]) { int ffa, lfa; /* First, last input file argument */ char prof_name[MAXNAMEL+1] = { '\000' }; /* ICC profile name, "" if none */ char in_name[MAXNAMEL+1]; /* TIFF input file */ - char *xl = NULL, out_name[MAXNAMEL+4+1] = { '\000' }; /* VRML output file */ + char *xl = NULL, out_name[MAXNAMEL+4+1] = { '\000' }; /* VRML/X3D output file */ int verb = 0; int vrml = 0; int doaxes = 1; @@ -366,12 +372,12 @@ main(int argc, char *argv[]) { uint16 samplesperpixel, bitspersample; uint16 pconfig, photometric, pmtc; tdata_t *inbuf; - int inbpix; /* Number of pixels in jpeg in buf */ + int inbpix = 0; /* Number of pixels in jpeg in buf */ void (*cvt)(double *out, double *in) = NULL; /* TIFF conversion function, NULL if none */ - icColorSpaceSignature tcs; /* TIFF colorspace */ - uint16 extrasamples; /* Extra "alpha" samples */ - uint16 *extrainfo; /* Info about extra samples */ - int sign_mask; /* Handling of encoding sign */ + icColorSpaceSignature tcs = 0; /* TIFF colorspace */ + uint16 extrasamples = 0; /* Extra "alpha" samples */ + uint16 *extrainfo = NULL; /* Info about extra samples */ + int sign_mask = 0; /* Handling of encoding sign */ /* JPEG */ jpegerrorinfo jpeg_rerr; @@ -547,7 +553,7 @@ main(int argc, char *argv[]) { usage(); } - /* VRML output */ + /* VRML/X3D output */ else if (argv[fa][1] == 'w' || argv[fa][1] == 'W') { vrml = 1; } @@ -1010,19 +1016,26 @@ main(int argc, char *argv[]) { int i; double in[MAX_CHAN], out[MAX_CHAN]; +//printf("~1 location %d,%d\n",x,y); if (bitspersample == 8) { for (i = 0; i < samplesperpixel; i++) { int v = ((unsigned char *)inbuf)[x * samplesperpixel + i]; +//printf("~1 v[%d] = %d\n",i,v); if (sign_mask & (1 << i)) /* Treat input as signed */ v = (v & 0x80) ? v - 0x80 : v + 0x80; +//printf("~1 signed v[%d] = %d\n",i,v); in[i] = v/255.0; +//printf("~1 in[%d] = %f\n",i,in[i]); } } else { for (i = 0; i < samplesperpixel; i++) { int v = ((unsigned short *)inbuf)[x * samplesperpixel + i]; +//printf("~1 v[%d] = %d\n",i,v); if (sign_mask & (1 << i)) /* Treat input as signed */ v = (v & 0x8000) ? v - 0x8000 : v + 0x8000; +//printf("~1 signed v[%d] = %d\n",i,v); in[i] = v/65535.0; +//printf("~1 in[%d] = %f\n",i,in[i]); } } if (cvt != NULL) { /* Undo TIFF encoding */ @@ -1054,10 +1067,14 @@ main(int argc, char *argv[]) { } for (i = 0; i < 3; i++) { - if (out[i] < apcsmin[i]) + if (out[i] < apcsmin[i]) { +//printf("~1 new min %f\n",out[i]); apcsmin[i] = out[i]; - if (out[i] > apcsmax[i]) + } + if (out[i] > apcsmax[i]) { +//printf("~1 new max %f\n",out[i]); apcsmax[i] = out[i]; + } } if (filter) add_fpixel(out); @@ -1117,14 +1134,13 @@ main(int argc, char *argv[]) { if (verb) printf("Output Gamut file '%s'\n",out_name); - /* Create the VRML file */ + /* Create the VRML/X3D file */ if (gam->write_gam(gam,out_name)) error ("write gamut failed on '%s'",out_name); if (vrml) { - - strcpy(xl,".wrl"); - printf("Output vrml file '%s'\n",out_name); + xl[0] = '\000'; + printf("Output %s file '%s%s'\n",vrml_format(),out_name,vrml_ext()); if (gam->write_vrml(gam,out_name, doaxes, docusps)) error ("write vrml failed on '%s'",out_name); } diff --git a/xicc/tiffgmts.c b/xicc/tiffgmts.c index 03f6363..c31f852 100644 --- a/xicc/tiffgmts.c +++ b/xicc/tiffgmts.c @@ -1,6 +1,6 @@ /* - * Create a gamut mapping test set from a TIFF file. + * Create a gamut mapping locus set from a TIFF file. * * Author: Graeme W. Gill * Date: 08/10/14 @@ -42,6 +42,7 @@ #include "xicc.h" #include "vrml.h" #include "sort.h" +#include "ui.h" #define DE_SPACE 3 /* Delta E of spacing for output points */ #undef DEBUG_PLOT @@ -52,8 +53,8 @@ void usage(void) { fprintf(stderr,"Author: Graeme W. Gill, licensed under the AGPL Version 3\n"); fprintf(stderr,"usage: tiffgmts [-v level] [profile.icm | embedded.tif] infile.tif\n"); fprintf(stderr," -v Verbose\n"); - fprintf(stderr," -w emit VRML .wrl file as well as CGATS .ts file\n"); - fprintf(stderr," -n Don't add VRML axes or white/black point\n"); + fprintf(stderr," -w emit %s %s file as well as CGATS .ts file\n",vrml_format(),vrml_ext()); + fprintf(stderr," -n Don't add %s axes or white/black point\n",vrml_format()); fprintf(stderr," -i intent p = perceptual, r = relative colorimetric,\n"); fprintf(stderr," s = saturation, a = absolute (default), d = profile default\n"); // fprintf(stderr," P = absolute perceptual, S = absolute saturation\n"); @@ -484,7 +485,7 @@ main(int argc, char *argv[]) { usage(); } - /* VRML output */ + /* VRML/X3D output */ else if (argv[fa][1] == 'w' || argv[fa][1] == 'W') { dovrml = 1; } @@ -1003,14 +1004,14 @@ printf("~1 itter %d, alen = %f, minl = %f, maxl = %f\n",j,alen,minl,maxl); error("Write error : %s",pp->err); } - /* Create the VRML file */ + /* Create the VRML/X3D file */ if (dovrml) { vrml *vv; - strcpy(xl,".wrl"); - printf("Output vrml file '%s'\n",out_name); + xl[0] = '\000'; /* remove extension */ + printf("Output %s file '%s%s'\n",vrml_format(),out_name,vrml_ext()); if ((vv = new_vrml(out_name, doaxes, 0)) == NULL) - error ("Creating VRML object failed"); + error ("Creating %s object %s%s failed",vrml_format(),out_name,vrml_ext()); #ifdef NEVER vv->start_line_set(vv); @@ -1024,7 +1025,7 @@ printf("~1 itter %d, alen = %f, minl = %f, maxl = %f\n",j,alen,minl,maxl); } #endif - vv->del(vv); + vv->del(vv); /* Write file */ } free(outp); } diff --git a/xicc/transplot.c b/xicc/transplot.c index d4600d9..6473e2b 100644 --- a/xicc/transplot.c +++ b/xicc/transplot.c @@ -1,6 +1,5 @@ /* - * International Color Consortium Format Library (icclib) * Check various aspects of RGB or CMYK device link, * and RGB/CMYK profile transfer characteristics. * @@ -29,6 +28,7 @@ #include "icc.h" #include "numlib.h" #include "plot.h" +#include "ui.h" void usage(void) { fprintf(stderr,"Check CMYK/RGB/PCS->PCS/CMYK/RGB transfer response\n"); @@ -321,8 +321,12 @@ main( } if (labout) do_plot6(xx,y0,y1,NULL,NULL,y2,NULL,XRES); - else - do_plot6(xx,y3,y1,NULL,y0,y2,NULL,XRES); + else { + if (outs == icSigCmykData) + do_plot6(xx,y3,y1,NULL,y0,y2,NULL,XRES); + else /* Assume RGB */ + do_plot6(xx,NULL,y0,y1,y2,NULL,NULL,XRES); + } } /* Done with lookup object */ diff --git a/xicc/xcal.c b/xicc/xcal.c index 06d343c..4400745 100644 --- a/xicc/xcal.c +++ b/xicc/xcal.c @@ -301,6 +301,9 @@ static int xcal_read(xcal *p, char *filename) { return p->errc; } + if (tcg->ntables < 1) + return 1; + rv = xcal_read_cgats(p, tcg, table, filename); tcg->del(tcg); diff --git a/xicc/xcam.c b/xicc/xcam.c index 8e1a0cd..6117cd1 100644 --- a/xicc/xcam.c +++ b/xicc/xcam.c @@ -126,7 +126,7 @@ double Yb, /* Relative Luminance of Background to reference white */ double Lv, /* Luminance of white in the Viewing/Scene/Image field (cd/m^2) */ /* Ignored if Ev is set to other than vc_none */ double Yf, /* Flare as a fraction of the reference white (Y range 0.0 .. 1.0) */ -double Yg, /* Glare as a fraction of the ambient (Y range 0.0 .. 1.0) */ +double Yg, /* Glare as a fraction of the adapting/surround (Y range 0.0 .. 1.0) */ double Gxyz[3], /* The Glare white coordinates (typically the Ambient color) */ int hk /* Flag, NZ to use Helmholtz-Kohlraush effect */ ) { diff --git a/xicc/xcam.h b/xicc/xcam.h index 7ec6949..021c621 100644 --- a/xicc/xcam.h +++ b/xicc/xcam.h @@ -49,7 +49,7 @@ struct _icxcam { double Lv, /* Luminance of white in the Viewing/Scene/Image field (cd/m^2) */ /* Ignored if Ev is set */ double Yf, /* Flare as a fraction of the reference white (range 0.0 .. 1.0) */ - double Yg, /* Glare as a fraction of the ambient (range 0.0 .. 1.0) */ + double Yg, /* Glare as a fraction of the adapting/surround (range 0.0 .. 1.0) */ double Gxyz[3], /* The Glare white coordinates (typically the Ambient color) */ int hk /* Flag, NZ to use Helmholtz-Kohlraush effect */ ); diff --git a/xicc/xfbview.c b/xicc/xfbview.c index 6abf176..affdb53 100644 --- a/xicc/xfbview.c +++ b/xicc/xfbview.c @@ -25,6 +25,8 @@ #include "numlib.h" #include "icc.h" #include "xicc.h" +#include "vrml.h" +#include "ui.h" #define RW 0.5 /* Device Delta */ @@ -65,7 +67,7 @@ void usage(void) { fprintf(stderr," -d Show PCS target -> average of device ref clippped PCS\n"); fprintf(stderr," -b Show PCS target -> B2A lookup clipped PCS\n"); fprintf(stderr," -e Show reference cliped PCS -> B2A lookup clipped PCS\n"); - fprintf(stderr," -r res Resolution of test grid\n"); + fprintf(stderr," -r res Resolution of test grid [Def 33]\n"); fprintf(stderr," -g Do full grid, not just L = 0\n"); fprintf(stderr," -c Do all values, not just clipped ones\n"); fprintf(stderr," -l tlimit set total ink limit, 0 - 400%% (estimate by default)\n"); @@ -181,7 +183,7 @@ main( strcpy(out_name, in_name); if ((xl = strrchr(out_name, '.')) == NULL) /* Figure where extention is */ xl = out_name + strlen(out_name); - strcpy(xl,".wrl"); + xl[0] = '\000'; /* Remove extension */ /* Open up the file for reading */ if ((rd_fp = new_icmFileStd_name(in_name,"r")) == NULL) @@ -201,7 +203,7 @@ main( xicc *xicco; icxLuBase *luo; icxInk ink; /* Ink parameters */ - FILE *wrl; + vrml *wrl; struct { double x, y, z; double wx, wy, wz; @@ -250,60 +252,21 @@ main( error("Expecting CMYK device"); } - if ((wrl = fopen(out_name,"w")) == NULL) { - fprintf(stderr,"Error opening output file '%s'\n",out_name); + if ((wrl = new_vrml(out_name, doaxes, vrml_lab)) == NULL) { + fprintf(stderr,"new_vrml failed for '%s%s'\n",out_name,vrml_ext()); return 2; } - /* Spit out a VRML 2 Object surface of gamut */ - - fprintf(wrl,"#VRML V2.0 utf8\n"); - fprintf(wrl,"\n"); - fprintf(wrl,"# Created by the Argyll CMS\n"); - fprintf(wrl,"Transform {\n"); - fprintf(wrl,"children [\n"); - fprintf(wrl," NavigationInfo {\n"); - fprintf(wrl," type \"EXAMINE\" # It's an object we examine\n"); - fprintf(wrl," } # We'll add our own light\n"); - fprintf(wrl,"\n"); - fprintf(wrl," DirectionalLight {\n"); - fprintf(wrl," direction 0 0 -1 # Light illuminating the scene\n"); - fprintf(wrl," direction 0 -1 0 # Light illuminating the scene\n"); - fprintf(wrl," }\n"); - fprintf(wrl,"\n"); - fprintf(wrl," Viewpoint {\n"); - fprintf(wrl," position 0 0 340 # Position we view from\n"); - fprintf(wrl," }\n"); - fprintf(wrl,"\n"); - if (doaxes != 0) { - fprintf(wrl,"# Lab axes as boxes:\n"); - for (i = 0; i < 5; i++) { - fprintf(wrl,"Transform { translation %f %f %f\n", axes[i].x, axes[i].y, axes[i].z); - fprintf(wrl,"\tchildren [\n"); - fprintf(wrl,"\t\tShape{\n"); - fprintf(wrl,"\t\t\tgeometry Box { size %f %f %f }\n", - axes[i].wx, axes[i].wy, axes[i].wz); - fprintf(wrl,"\t\t\tappearance Appearance { material Material "); - fprintf(wrl,"{ diffuseColor %f %f %f} }\n", axes[i].r, axes[i].g, axes[i].b); - fprintf(wrl,"\t\t}\n"); - fprintf(wrl,"\t]\n"); - fprintf(wrl,"}\n"); - } - fprintf(wrl,"\n"); - } - /* ---------------------------------------------- */ /* The PCS target -> Reference clipped vectors */ if (doref) { + double rgb[3]; + if (verb) printf("Doing PCS target to reference clipped PCS Vectors\n"); - fprintf(wrl,"\n"); - fprintf(wrl,"Shape {\n"); - fprintf(wrl," geometry IndexedLineSet { \n"); - fprintf(wrl," coord Coordinate { \n"); - fprintf(wrl," point [\n"); + wrl->start_line_set(wrl, 0); i = 0; for (coa[0] = 0; coa[0] < tres; coa[0]++) { @@ -339,8 +302,8 @@ main( printf("."), fflush(stdout); /* Input PCS to ideal (Inverse AtoB) clipped PCS values */ - fprintf(wrl,"%f %f %f,\n",in[1], in[2], in[0]-GAMUT_LCENT); - fprintf(wrl,"%f %f %f,\n",out[1], out[2], out[0]-GAMUT_LCENT); + wrl->add_vertex(wrl, 0, in); + wrl->add_vertex(wrl, 0, out); i++; } } @@ -350,17 +313,18 @@ main( if (verb) printf("\n"); - fprintf(wrl," ]\n"); - fprintf(wrl," }\n"); - fprintf(wrl," coordIndex [\n"); for (j = 0; j < i; j++) { - fprintf(wrl,"%d, %d, -1,\n", j * 2, j * 2 + 1); + int ix[2]; + ix[0] = j * 2; + ix[1] = j * 2 +1; + wrl->add_line(wrl, 0, ix); } - fprintf(wrl," ]\n"); - fprintf(wrl," }\n"); - fprintf(wrl,"appearance Appearance { material Material { emissiveColor 1.0 0.1 0.1} }\n"); - fprintf(wrl,"} # end shape\n"); + + rgb[0] = 1.0; + rgb[1] = 0.1; + rgb[2] = 0.1; + wrl->make_lines_cc(wrl, 0, 0.0, rgb); } /* ---------------------------------------------- */ @@ -368,14 +332,12 @@ main( /* The PCS target -> clipped from average of surrounding device values, vectors */ if (dodelta) { + double rgb[3]; + if (verb) printf("Doing target PCS to average of 4 surrounding device to PCS Vectors\n"); - fprintf(wrl,"\n"); - fprintf(wrl,"Shape {\n"); - fprintf(wrl," geometry IndexedLineSet { \n"); - fprintf(wrl," coord Coordinate { \n"); - fprintf(wrl," point [\n"); + wrl->start_line_set(wrl, 0); i = 0; for (coa[0] = 0; coa[0] < tres; coa[0]++) { @@ -485,8 +447,8 @@ main( if (verb) printf("."), fflush(stdout); - fprintf(wrl,"%f %f %f,\n",in[1], in[2], in[0]-GAMUT_LCENT); - fprintf(wrl,"%f %f %f,\n",out[1], out[2], out[0]-GAMUT_LCENT); + wrl->add_vertex(wrl, 0, in); + wrl->add_vertex(wrl, 0, out); i++; } } @@ -496,26 +458,30 @@ main( if (verb) printf("\n"); - fprintf(wrl," ]\n"); - fprintf(wrl," }\n"); - fprintf(wrl," coordIndex [\n"); for (j = 0; j < i; j++) { - fprintf(wrl,"%d, %d, -1,\n", j * 2, j * 2 + 1); + int ix[2]; + ix[0] = j * 2; + ix[1] = j * 2 +1; + wrl->add_line(wrl, 0, ix); } - fprintf(wrl," ]\n"); - fprintf(wrl," }\n"); - fprintf(wrl,"appearance Appearance { material Material { emissiveColor 0.9 0.9 0.9} }\n"); - fprintf(wrl,"} # end shape\n"); + rgb[0] = 0.9; + rgb[1] = 0.9; + rgb[2] = 0.9; + wrl->make_lines_cc(wrl, 0, 0.0, rgb); } /* ---------------------------------------------- */ /* The target PCS -> clipped PCS using B2A table vectore */ if (dob2a) { + double rgb[3]; + icxLuBase *luoB; + wrl->start_line_set(wrl, 0); + /* Get a PCS to Device conversion object */ if ((luoB = xicco->get_luobj(xicco, ICX_CLIP_NEAREST, icmBwd, icAbsoluteColorimetric, icSigLabData, icmLuOrdNorm, NULL, &ink)) == NULL) { @@ -527,12 +493,6 @@ main( if (verb) printf("Doing target PCS to B2A clipped PCS Vectors\n"); - fprintf(wrl,"\n"); - fprintf(wrl,"Shape {\n"); - fprintf(wrl," geometry IndexedLineSet { \n"); - fprintf(wrl," coord Coordinate { \n"); - fprintf(wrl," point [\n"); - i = 0; for (coa[0] = 0; coa[0] < tres; coa[0]++) { for (coa[1] = 0; coa[1] < tres; coa[1]++) { @@ -563,8 +523,8 @@ main( if (verb) printf("."), fflush(stdout); - fprintf(wrl,"%f %f %f,\n",in[1], in[2], in[0]-GAMUT_LCENT); - fprintf(wrl,"%f %f %f,\n",out[1], out[2], out[0]-GAMUT_LCENT); + wrl->add_vertex(wrl, 0, in); + wrl->add_vertex(wrl, 0, out); i++; } } @@ -574,17 +534,18 @@ main( if (verb) printf("\n"); - fprintf(wrl," ]\n"); - fprintf(wrl," }\n"); - fprintf(wrl," coordIndex [\n"); for (j = 0; j < i; j++) { - fprintf(wrl,"%d, %d, -1,\n", j * 2, j * 2 + 1); + int ix[2]; + ix[0] = j * 2; + ix[1] = j * 2 +1; + wrl->add_line(wrl, 0, ix); } - fprintf(wrl," ]\n"); - fprintf(wrl," }\n"); - fprintf(wrl,"appearance Appearance { material Material { emissiveColor 0.9 0.9 0.9} }\n"); - fprintf(wrl,"} # end shape\n"); + + rgb[0] = 0.9; + rgb[1] = 0.9; + rgb[2] = 0.9; + wrl->make_lines_cc(wrl, 0, 0.0, rgb); luoB->del(luoB); } @@ -593,8 +554,12 @@ main( /* The reference clipped PCS -> B2A clipped PCS vectore */ if (doeee) { + double rgb[3]; + icxLuBase *luoB; + wrl->start_line_set(wrl, 0); + /* Get a PCS to Device conversion object */ if ((luoB = xicco->get_luobj(xicco, ICX_CLIP_NEAREST, icmBwd, icAbsoluteColorimetric, icSigLabData, icmLuOrdNorm, NULL, &ink)) == NULL) { @@ -606,12 +571,6 @@ main( if (verb) printf("Doing reference clipped PCS to B2A table clipped PCS Vectors\n"); - fprintf(wrl,"\n"); - fprintf(wrl,"Shape {\n"); - fprintf(wrl," geometry IndexedLineSet { \n"); - fprintf(wrl," coord Coordinate { \n"); - fprintf(wrl," point [\n"); - i = 0; for (coa[0] = 0; coa[0] < tres; coa[0]++) { for (coa[1] = 0; coa[1] < tres; coa[1]++) { @@ -653,8 +612,8 @@ main( if (verb) printf("."), fflush(stdout); - fprintf(wrl,"%f %f %f,\n",check[1], check[2], check[0]-GAMUT_LCENT); - fprintf(wrl,"%f %f %f,\n",out[1], out[2], out[0]-GAMUT_LCENT); + wrl->add_vertex(wrl, 0, check); + wrl->add_vertex(wrl, 0, out); i++; } } @@ -664,31 +623,29 @@ main( if (verb) printf("\n"); - fprintf(wrl," ]\n"); - fprintf(wrl," }\n"); - fprintf(wrl," coordIndex [\n"); for (j = 0; j < i; j++) { - fprintf(wrl,"%d, %d, -1,\n", j * 2, j * 2 + 1); + int ix[2]; + ix[0] = j * 2; + ix[1] = j * 2 +1; + wrl->add_line(wrl, 0, ix); } - fprintf(wrl," ]\n"); - fprintf(wrl," }\n"); - fprintf(wrl,"appearance Appearance { material Material { emissiveColor 0.9 0.9 0.9} }\n"); - fprintf(wrl,"} # end shape\n"); + + rgb[0] = 0.9; + rgb[1] = 0.9; + rgb[2] = 0.9; + wrl->make_lines_cc(wrl, 0, 0.0, rgb); luoB->del(luoB); } /* ---------------------------------------------- */ - fprintf(wrl,"\n"); - fprintf(wrl," ] # end of children for world\n"); - fprintf(wrl,"}\n"); - - if (fclose(wrl) != 0) { - fprintf(stderr,"Error closing output file '%s'\n",out_name); + if (wrl->flush(wrl) != 0) { + fprintf(stderr,"Error closing output file '%s%s'\n",out_name,vrml_ext()); return 2; } + wrl->del(wrl); /* Done with lookup object */ luo->del(luo); diff --git a/xicc/xfit.c b/xicc/xfit.c index d0912f9..d12919f 100644 --- a/xicc/xfit.c +++ b/xicc/xfit.c @@ -83,7 +83,8 @@ /* This seems to work badly, even with high smoothness. Why ? */ /* It does speed up 1D lut creation though. */ -#undef DEBUG /* Verbose debug information */ +#undef DEBUG /* Debug information */ +#undef DEBUG_PROGRESS /* Show powell progress */ #undef DEBUG_PLOT /* Plot in & out curves */ #undef SPECIAL_FORCE /* Check rspl nodes against linear XYZ model */ #undef SPECIAL_FORCE_GAMMA /* Force correct gamma shaper curves */ @@ -99,8 +100,10 @@ #define CURVEPOW 1.0 /* Power to raise deltaE squared to in setting in/out curves */ /* This provides a means of punishing high maximum errors. */ -#define POWTOL 1e-4 /* Shaper Powell optimiser tollerance in delta E squared ^ CURVEPOW */ -#define MAXITS 2000 /* Shaper number of itterations before giving up */ +#define POWTOL1 1e-3 /* Shaper Powell optimiser tollerance for first passes */ +#define MAXITS1 1000 /* Shaper number of itterations for first passes */ +#define POWTOL 1e-5 /* Shaper Powell optimiser tollerance in delta E squared ^ CURVEPOW */ +#define MAXITS 4000 /* Shaper number of itterations before giving up */ #define PDDEL 1e-6 /* Fake partial derivative del */ /* Weights for shaper in/out curve parameters, to minimise unconstrained "wiggles" */ @@ -654,6 +657,27 @@ static void xfit_abs_to_rel(xfit *p, double *out, double *in) { } } +/* Convert an XYZ output value from absolute */ +/* to cLut relative using the current white point. */ +static void xfit_XYZ_abs_to_rel(xfit *p, double *out, double *in) { + if (p->flags & XFIT_OUT_WP_REL) { + if (p->flags & XFIT_OUT_LAB) { + icmMulBy3x3(out, p->fromAbs, in); + icmXYZ2Lab(&icmD50, out, out); + } else { + icmMulBy3x3(out, p->fromAbs, in); + } + } else { + if (p->flags & XFIT_OUT_LAB) { + icmXYZ2Lab(&icmD50, out, in); + } else { + out[0] = in[0]; + out[1] = in[1]; + out[2] = in[2]; + } + } +} + /* - - - - - - - - - */ /* return a weighting for the magnitude of the in and out */ @@ -921,7 +945,7 @@ static double xfitfunc(void *edata, double *v) { smv = pow(smv, CURVEPOW); rv = ev + smv; -#ifdef DEBUG +#ifdef DEBUG_PROGRESS if (xfitfunc_trace) fprintf(stdout,"~1(sm %f, ev %f)xfitfunc returning %f\n",smv,ev,rv); #endif @@ -968,7 +992,6 @@ static double dxfitfunc(void *edata, double *dv, double *v) { } else { for (i = 0; i < p->opt_cnt; i++) { -//printf("~1 param %d = %f\n",i,v[i]); p->v[p->opt_off + i] = v[i]; } } @@ -1112,13 +1135,12 @@ static double dxfitfunc(void *edata, double *dv, double *v) { rv = ev + smv; /* Sum the del for parameters being optimised and copy to return array */ - if (p->opt_ssch) { for (i = 0; i < p->sm_iluord; i++) dv[i] = 0.0; for (e = 0; e < di; e++) { /* Combine per channel curve de's */ for (i = 0; i < p->sm_iluord; i++) - dv[i] += dav[p->shp_offs[e] + i] = sdav[p->shp_offs[e] + i]; + dv[i] += dav[p->shp_offs[e] + i] + sdav[p->shp_offs[e] + i]; } for (i = p->sm_iluord; i < p->opt_cnt; i++) /* matrix and rest de's */ dv[i] = dav[p->mat_off + i - p->sm_iluord] + sdav[p->mat_off + i - p->sm_iluord]; @@ -1128,7 +1150,7 @@ static double dxfitfunc(void *edata, double *dv, double *v) { dv[i] = dav[p->opt_off + i] + sdav[p->opt_off + i]; } -#ifdef DEBUG +#ifdef DEBUG_PROGRESS fprintf(stdout,"~1(sm %f, ev %f)dxfitfunc returning %f\n",smv,ev,rv); #endif @@ -1251,7 +1273,7 @@ static double symoptfunc(void *edata, double *v) { rv = out[0] * out[0]; -#ifdef DEBUG +#ifdef DEBUG_PROGRESS printf("~1symoptfunc returning %f\n",rv); #endif return rv; @@ -1639,7 +1661,7 @@ printf("~1 changing %f %f %f -> %f %f %f\n", out[0], out[1], out[2], tout[0], to /* Do the fitting. */ /* return nz on error */ /* 1 = malloc or other error */ -int xfit_fit( +static int xfit_fit( struct _xfit *p, int flags, /* Flag values */ int di, /* Input dimensions */ @@ -1659,6 +1681,7 @@ int xfit_fit( int gres[MXDI], /* clut resolutions being optimised for/returned */ double out_min[MXDO], /* Output value scaling/range minimum */ double out_max[MXDO], /* Output value scaling/range maximum */ +// co *bpo, /* If != NULL, black point override in same spaces as ipoints */ double smooth, /* clut rspl smoothing factor */ double oavgdev[MXDO], /* Average output value deviation */ double demph, /* dark emphasis factor for cLUT grid res. */ @@ -1678,6 +1701,9 @@ int xfit_fit( double *b; /* Base of parameters for this section */ int poff; + double powtol = POWTOL1; /* powell/conjgrad initial tollerance */ + int maxits = MAXITS1; /* powell/conjgrad initial maximum itterations */ + if (tcomb & oc_io) /* If we're doing anything, we need the matrix */ tcomb |= oc_m; @@ -1791,10 +1817,16 @@ int xfit_fit( icmAry2XYZ(_wp, p->wp); /* Absolute->Aprox. Relative Adaptation matrix */ - icmChromAdaptMatrix(ICM_CAM_BRADFORD, icmD50, _wp, p->fromAbs); + if (p->picc != NULL) + p->picc->chromAdaptMatrix(p->picc, ICM_CAM_NONE, icmD50, _wp, p->fromAbs); + else + icmChromAdaptMatrix(ICM_CAM_BRADFORD, icmD50, _wp, p->fromAbs); /* Aproximate relative to absolute conversion matrix */ - icmChromAdaptMatrix(ICM_CAM_BRADFORD, _wp, icmD50, p->toAbs); + if (p->picc != NULL) + p->picc->chromAdaptMatrix(p->picc, ICM_CAM_NONE, _wp, icmD50, p->toAbs); + else + icmChromAdaptMatrix(ICM_CAM_BRADFORD, _wp, icmD50, p->toAbs); if (p->verb) { double lab[3]; @@ -1921,11 +1953,11 @@ dump_xfit(p); setup_xfit(p, p->wv, p->sa, 0.0, 0.5); #ifdef NODDV - if (powell(&rerr, p->opt_cnt, p->wv, p->sa, POWTOL, MAXITS, + if (powell(&rerr, p->opt_cnt, p->wv, p->sa, powtol, maxits, xfitfunc, (void *)p, xfitprog, (void *)p) != 0) warning("xfit_fit: Powell failed to converge, residual error = %f",rerr); #else - if (conjgrad(&rerr, p->opt_cnt, p->wv, p->sa, POWTOL, MAXITS, + if (conjgrad(&rerr, p->opt_cnt, p->wv, p->sa, powtol, maxits, xfitfunc, dxfitfunc, (void *)p, xfitprog, (void *)p) != 0) warning("xfit_fit: Conjgrad failed to converge, residual error = %f", rerr); #endif @@ -1935,13 +1967,57 @@ dump_xfit(p); #ifdef DEBUG printf("\nAfter matrix opt:\n"); dump_xfit(p); + #endif } /* Optimise input and matrix together */ if ((p->tcomb & oc_im) == oc_im) { double rerr; + int sm_iluord = p->sm_iluord; + if (p->verb) + printf("About to optimise a common ord 0 input curve and matrix\n"); + + /* Setup pseudo-inverse if we need it */ + if (p->flags & XFIT_FM_INPUT) + setup_piv(p); + + p->opt_ssch = 1; + p->sm_iluord = 1; /* Do a single order for first up */ + p->opt_ch = -1; + p->opt_msk = oc_im; + setup_xfit(p, p->wv, p->sa, 0.5, 0.3); + +#ifdef NODDV + if (powell(&rerr, p->opt_cnt, p->wv, p->sa, powtol, maxits, + xfitfunc, (void *)p, xfitprog, (void *)p) != 0) { +#ifdef DEBUG + warning("xfit_fit: Powell failed to converge, residual error = %f",rerr); +#endif + } +#else + if (conjgrad(&rerr, p->opt_cnt, p->wv, p->sa, powtol, maxits, + xfitfunc, dxfitfunc, (void *)p, xfitprog, (void *)p) != 0) { +#ifdef DEBUG + warning("xfit_fit: Conjgrad failed to converge, residual error = %f",rerr); +#endif + } +#endif /* !NODDV */ + for (e = 0; e < di; e++) { /* Copy optimised values back */ + for (i = 0; i < p->sm_iluord; i++) + p->v[p->shp_offs[e] + i] = p->wv[i]; + for (; i < p->iluord[e]; i++) + p->v[p->shp_offs[e] + i] = 0.0; + } + for (i = p->sm_iluord; i < p->opt_cnt; i++) + p->v[p->mat_off + i - p->sm_iluord] = p->wv[i]; +#ifdef DEBUG +printf("\nAfter single input and matrix opt:\n"); +dump_xfit(p); +#endif + + /* - - - - - - - - - - - */ if (p->verb) printf("About to optimise a common input curve and matrix\n"); @@ -1950,19 +2026,20 @@ dump_xfit(p); setup_piv(p); p->opt_ssch = 1; + p->sm_iluord = sm_iluord; /* restore this */ p->opt_ch = -1; p->opt_msk = oc_im; setup_xfit(p, p->wv, p->sa, 0.5, 0.3); #ifdef NODDV - if (powell(&rerr, p->opt_cnt, p->wv, p->sa, POWTOL, MAXITS, + if (powell(&rerr, p->opt_cnt, p->wv, p->sa, powtol, maxits, xfitfunc, (void *)p, xfitprog, (void *)p) != 0) { #ifdef DEBUG warning("xfit_fit: Powell failed to converge, residual error = %f",rerr); #endif } #else - if (conjgrad(&rerr, p->opt_cnt, p->wv, p->sa, POWTOL, MAXITS, + if (conjgrad(&rerr, p->opt_cnt, p->wv, p->sa, powtol, maxits, xfitfunc, dxfitfunc, (void *)p, xfitprog, (void *)p) != 0) { #ifdef DEBUG warning("xfit_fit: Conjgrad failed to converge, residual error = %f",rerr); @@ -1978,7 +2055,7 @@ dump_xfit(p); for (i = p->sm_iluord; i < p->opt_cnt; i++) p->v[p->mat_off + i - p->sm_iluord] = p->wv[i]; #ifdef DEBUG -printf("\nAfter input and matrix opt:\n"); +printf("\nAfter single input and matrix opt:\n"); dump_xfit(p); #endif @@ -1986,6 +2063,11 @@ dump_xfit(p); if (p->verb) printf("About to optimise input curves and matrix\n"); + if ((p->tcomb & oc_mo) != oc_mo) { /* If this will be last fit */ + powtol = POWTOL; + maxits = MAXITS; + } + /* Setup pseudo-inverse if we need it */ if (p->flags & XFIT_FM_INPUT) setup_piv(p); @@ -1998,14 +2080,14 @@ dump_xfit(p); /* itterations and move on to the output curve, and worry about it not */ /* converging the second time through. */ #ifdef NODDV - if (powell(&rerr, p->opt_cnt, p->wv, p->sa, POWTOL, MAXITS, + if (powell(&rerr, p->opt_cnt, p->wv, p->sa, powtol, maxits, xfitfunc, (void *)p, xfitprog, (void *)p) != 0) { #ifdef DEBUG warning("xfit_fit: Powell failed to converge, residual error = %f",rerr); #endif } #else - if (conjgrad(&rerr, p->opt_cnt, p->wv, p->sa, POWTOL, MAXITS, + if (conjgrad(&rerr, p->opt_cnt, p->wv, p->sa, powtol, maxits, xfitfunc, dxfitfunc, (void *)p, xfitprog, (void *)p) != 0) { #ifdef DEBUG warning("xfit_fit: Conjgrad failed to converge, residual error = %f",rerr); @@ -2027,6 +2109,11 @@ dump_xfit(p); if (p->verb) printf("About to optimise output curves and matrix\n"); + if ((p->tcomb & oc_im) != oc_im) { /* If this will be last fit */ + powtol = POWTOL; + maxits = MAXITS; + } + /* Setup pseudo-inverse if we need it */ if (p->flags & XFIT_FM_INPUT) setup_piv(p); @@ -2036,11 +2123,11 @@ dump_xfit(p); p->opt_msk = oc_mo; setup_xfit(p, p->wv, p->sa, 0.3, 0.3); #ifdef NODDV - if (powell(&rerr, p->opt_cnt, p->wv, p->sa, POWTOL, MAXITS, + if (powell(&rerr, p->opt_cnt, p->wv, p->sa, powtol, maxits, xfitfunc, (void *)p, xfitprog, (void *)p) != 0) warning("xfit_fit: Powell failed to converge, residual error = %f",rerr); #else - if (conjgrad(&rerr, p->opt_cnt, p->wv, p->sa, POWTOL, MAXITS, xfitfunc, + if (conjgrad(&rerr, p->opt_cnt, p->wv, p->sa, powtol, maxits, xfitfunc, dxfitfunc, (void *)p, xfitprog, (void *)p) != 0) warning("xfit_fit: Conjgrad failed to converge, residual error = %f",rerr); #endif @@ -2057,6 +2144,15 @@ dump_xfit(p); if (p->verb) printf("About to optimise input curves and matrix again\n"); + +#ifndef NODDV + if ((p->tcomb & oc_imo) != oc_imo) /* If this will be last fit */ +#endif + { + powtol = POWTOL; + maxits = MAXITS; + } + /* Setup pseudo-inverse if we need it */ if (p->flags & XFIT_FM_INPUT) setup_piv(p); @@ -2066,11 +2162,11 @@ dump_xfit(p); p->opt_msk = oc_im; setup_xfit(p, p->wv, p->sa, 0.2, 0.2); #ifdef NODDV - if (powell(&rerr, p->opt_cnt, p->wv, p->sa, POWTOL, MAXITS, + if (powell(&rerr, p->opt_cnt, p->wv, p->sa, powtol, maxits, xfitfunc, (void *)p, xfitprog, (void *)p) != 0) warning("xfit_fit: Powell failed to converge, residual error = %f",rerr); #else - if (conjgrad(&rerr, p->opt_cnt, p->wv, p->sa, POWTOL, MAXITS, + if (conjgrad(&rerr, p->opt_cnt, p->wv, p->sa, powtol, maxits, xfitfunc, dxfitfunc, (void *)p, xfitprog, (void *)p) != 0) warning("xfit_fit: Conjgrad failed to converge, residual error = %f",rerr); #endif @@ -2084,6 +2180,7 @@ dump_xfit(p); #ifndef NODDV /* Optimise all together */ + /* (This is very slow using powell) */ if ((p->tcomb & oc_imo) == oc_imo) { if (p->verb) @@ -2566,7 +2663,10 @@ printf("~1 ipos[%d][%d] = %f\n",e,i,cv); /* Matrix needed to correct approx rel wp to target D50 */ icmAry2XYZ(_wp, wcc.v); /* Aprox relative target white point */ - icmChromAdaptMatrix(ICM_CAM_BRADFORD, icmD50, _wp, p->cmat); /* Correction */ + if (p->picc != NULL) /* Correction */ + p->picc->chromAdaptMatrix(p->picc, ICM_CAM_NONE, icmD50, _wp, p->cmat); + else + icmChromAdaptMatrix(ICM_CAM_BRADFORD, icmD50, _wp, p->cmat); /* Compute the actual white point, and return it to caller */ icmMulBy3x3(wp, p->toAbs, wcc.v); @@ -2586,8 +2686,13 @@ printf("~1 ipos[%d][%d] = %f\n",e,i,cv); /* Fix absolute conversions to leave absolute response unchanged. */ icmAry2XYZ(_wp, wp); /* Actual white point */ - icmChromAdaptMatrix(ICM_CAM_BRADFORD, icmD50, _wp, p->fromAbs); - icmChromAdaptMatrix(ICM_CAM_BRADFORD, _wp, icmD50, p->toAbs); + if (p->picc != NULL) { + p->picc->chromAdaptMatrix(p->picc, ICM_CAM_NONE, icmD50, _wp, p->fromAbs); + p->picc->chromAdaptMatrix(p->picc, ICM_CAM_NONE, _wp, icmD50, p->toAbs); + } else { + icmChromAdaptMatrix(ICM_CAM_BRADFORD, icmD50, _wp, p->fromAbs); + icmChromAdaptMatrix(ICM_CAM_BRADFORD, _wp, icmD50, p->toAbs); + } if (p->verb) { double labwp[3]; @@ -2732,6 +2837,22 @@ printf("~1 ipos[%d][%d] = %f\n",e,i,cv); ); } + /* Force black point to given value */ +// if (bpo != NULL) { +// co tv; +// int rv; +// +// xfit_inpscurves(p, tv.p, bpo->p); +// +// xfit_XYZ_abs_to_rel(p, tv.v, bpo->v); +// xfit_invoutcurves(p, tv.v, tv.v); +//printf("~1 xfit: fine after curves black at %f %f %f to %f %f %f\n", +//tv.p[0], tv.p[1], tv.p[2], tv.v[0], tv.v[1], tv.v[2]); +// rv = p->clut->tune_value(p->clut, &tv); +// if (rv != 0) +// warning("Black Point Override failed - clipping"); +// } + #ifdef SPECIAL_FORCE /* Replace the rspl nodes with ones directly computed */ /* from the synthetic linear RGB->XYZ model */ @@ -2966,6 +3087,7 @@ static void xfit_del(xfit *p) { /* Create a transform fitting object */ /* return NULL on error */ xfit *new_xfit( +icc *picc /* ICC profile used to set cone space matrix, NULL for Bradford. */ ) { xfit *p; @@ -2973,6 +3095,8 @@ xfit *new_xfit( return NULL; } + p->picc = picc; + /* Set method pointers */ p->fit = xfit_fit; p->incurve = xfit_inpscurve; diff --git a/xicc/xfit.h b/xicc/xfit.h index 519f071..14b4ecc 100644 --- a/xicc/xfit.h +++ b/xicc/xfit.h @@ -70,6 +70,7 @@ typedef struct { /* Context for optimising input and output luts */ struct _xfit { + icc *picc; /* ICC profile used to set cone space matrix, NULL for Bradford. */ int verb; /* Verbose */ int flags; /* Behaviour flags */ int di, fdi; /* Dimensionaluty of input and output */ @@ -170,6 +171,7 @@ struct _xfit { int gres[MXDI], /* clut resolutions being optimised for/returned */ double out_min[MXDO], /* Output value scaling/range minimum */ double out_max[MXDO], /* Output value scaling/range maximum */ +// co *bpo, /* If != NULL, black point override in same spaces as ipoints */ double smooth, /* clut rspl smoothing factor */ double oavgdev[MXDO], /* Average output value deviation */ double demph, /* dark emphasis factor for cLUT grid res. */ @@ -200,7 +202,8 @@ struct _xfit { }; typedef struct _xfit xfit; -xfit *new_xfit(); +/* The icc is to provide the cone space matrix. If NULL, Bradford will be used. */ +xfit *new_xfit(icc *picc); #endif /* XFIT_H */ diff --git a/xicc/xicc.c b/xicc/xicc.c index a1c4531..a7556d5 100644 --- a/xicc/xicc.c +++ b/xicc/xicc.c @@ -6,7 +6,7 @@ * Date: 2/7/00 * Version: 1.00 * - * Copyright 2000, 2001 Graeme W. Gill + * Copyright 2000, 2001, 2014 Graeme W. Gill * All rights reserved. * This material is licenced under the GNU AFFERO GENERAL PUBLIC LICENSE Version 3 :- * see the License.txt file for licencing details. @@ -60,7 +60,9 @@ icxLuBase * xicc_get_luobj(xicc *p, int flags, icmLookupFunc func, icRenderingIn static icxLuBase *xicc_set_luobj(xicc *p, icmLookupFunc func, icRenderingIntent intent, icmLookupOrder order, int flags, int no, int nobw, cow *points, icxMatrixModel *skm, - double dispLuminance, double wpscale, double smooth, double avgdev, + double dispLuminance, double wpscale, +// double *bpo, + double smooth, double avgdev, double demph, icxViewCond *vc, icxInk *ink, xcal *cal, int quality); static void icxLutSpaces(icxLuBase *p, icColorSpaceSignature *ins, int *inn, icColorSpaceSignature *outs, int *outn, @@ -680,12 +682,6 @@ double *kblack /* XYZ Output. Looked up if possible or set to black[] otherwis #ifdef DEBUG printf("~1 Lab pivot %f %f %f, Lab K direction %f %f %f\n",bfs.p1[0],bfs.p1[1],bfs.p1[2],bfs.p2[0],bfs.p2[1],bfs.p2[2]); #endif - /* Start with the K only as the current best value */ - brv = bpfindfunc((void *)&bfs, dblack); -#ifdef DEBUG - printf("~1 initial brv for K only = %f\n",brv); -#endif - /* Set the random start 0 location as 000K */ /* and the random start 1 location as CMY0 */ { @@ -707,6 +703,12 @@ double *kblack /* XYZ Output. Looked up if possible or set to black[] otherwis rs1[kch] = 0.0; /* K value */ } + /* Start with the K only as the current best value */ + brv = bpfindfunc((void *)&bfs, dblack); +#ifdef DEBUG + printf("~1 initial brv for K only = %f\n",brv); +#endif + /* Find the device black point using optimization */ /* Do several trials to avoid local minima. */ rand32(0x12345678); /* Make trial values deterministic */ @@ -1056,6 +1058,7 @@ cow *points, /* Array of input points in target PCS space */ icxMatrixModel *skm, /* Optional skeleton model (used for input profiles) */ double dispLuminance, /* > 0.0 if display luminance value and is known */ double wpscale, /* > 0.0 if input white point is to be scaled */ +//double *bpo, /* != NULL for black point override XYZ */ double smooth, /* RSPL smoothing factor, -ve if raw */ double avgdev, /* reading Average Deviation as a proportion of the input range */ double demph, /* dark emphasis factor for cLUT grid res. */ @@ -1104,12 +1107,17 @@ int quality /* Quality metric, 0..3 */ case icmMatrixFwdType: if (smooth < 0.0) smooth = -smooth; - xplu = set_icxLuMatrix(p, plu, flags, no, nobw, points, skm, dispLuminance, wpscale, quality, smooth); + xplu = set_icxLuMatrix(p, plu, flags, no, nobw, points, skm, dispLuminance, wpscale, +// bpo, + quality, smooth); break; case icmLutType: /* ~~~ Should add check that it is a fwd profile ~~~ */ - xplu = set_icxLuLut(p, plu, func, intent, flags, no, nobw, points, skm, dispLuminance, wpscale, smooth, avgdev, demph, vc, ink, quality); + xplu = set_icxLuLut(p, plu, func, intent, flags, no, nobw, points, skm, dispLuminance, + wpscale, +// bpo, + smooth, avgdev, demph, vc, ink, quality); break; default: @@ -1213,14 +1221,14 @@ icxViewCond *vc /* Viewing parameters to return */ /* Numbers we're trying to find */ ViewingCondition Ev = vc_none; double Wxyz[3] = {-1.0, -1.0, -1.0}; /* Adapting white color */ - double La = -1.0; /* Adapting luminance */ + double La = -1.0; /* Adapting/Surround luminance */ double Ixyz[3] = {-1.0, -1.0, -1.0}; /* Illuminant color */ double Li = -1.0; /* Illuminant luminance */ double Lb = -1.0; /* Backgrount luminance */ double Yb = -1.0; /* Background relative luminance to Lv */ double Lve = -1.0; /* Emissive device image luminance */ double Lvr = -1.0; /* Reflective device image luminance */ - double Lv = -1.0; /* device image luminance */ + double Lv = -1.0; /* Device image luminance */ double Yf = -1.0; /* Flare relative luminance to Lv */ double Yg = -1.0; /* Glare relative luminance to La */ double Gxyz[3] = {-1.0, -1.0, -1.0}; /* Glare color */ @@ -1909,7 +1917,7 @@ icxViewCond *vc if (vc->Ev == vc_none) printf(" Image luminance = %f cd/m^2\n",vc->Lv); printf(" Flare to image ratio = %f\n",vc->Yf); - printf(" Glare to ambient ratio = %f\n",vc->Yg); + printf(" Glare to adapting/surround ratio = %f\n",vc->Yg); printf(" Flare color = %f %f %f\n",vc->Gxyz[0], vc->Gxyz[1], vc->Gxyz[2]); } @@ -2150,7 +2158,7 @@ char *as /* Alias string selector, NULL for none */ gmi->bph = gmm_bendBP; /* extent and bend */ gmi->gamcpf = 1.0; /* Full gamut compression */ gmi->gamexf = 0.0; /* No gamut expansion */ - gmi->gamcknf = 0.8; /* High Sigma knee in gamut compress */ + gmi->gamcknf = 0.9; /* 0.9 High Sigma knee in gamut compress */ gmi->gamxknf = 0.0; /* No knee in gamut expand */ gmi->gampwf = 1.0; /* Full Perceptual surface weighting factor */ gmi->gamswf = 0.0; /* No Saturation surface weighting factor */ @@ -2176,7 +2184,7 @@ char *as /* Alias string selector, NULL for none */ gmi->bph = gmm_bendBP; /* extent and bend */ gmi->gamcpf = 1.0; /* Full gamut compression */ gmi->gamexf = 0.0; /* No gamut expansion */ - gmi->gamcknf = 0.8; /* High Sigma knee in gamut compress */ + gmi->gamcknf = 0.9; /* 0.9 High Sigma knee in gamut compress */ gmi->gamxknf = 0.0; /* No knee in gamut expand */ gmi->gampwf = 1.0; /* Full Perceptual surface weighting factor */ gmi->gamswf = 0.0; /* No Saturation surface weighting factor */ @@ -3616,8 +3624,7 @@ double *in /* Input di values */ /* Including partial derivative for input and parameters. */ -/* 3x3 matrix multiplication, with the matrix in a 1D array */ -/* with respect to the input and parameters. */ +/* 3x3 matrix in 1D array multiplication */ void icxMulBy3x3Parm( double out[3], /* Return input multiplied by matrix */ double mat[9], /* Matrix organised in [slow][fast] order */ @@ -3639,7 +3646,39 @@ void icxMulBy3x3Parm( } -/* 3x3 matrix multiplication, with partial derivatives */ +/* 3x3 matrix in 1D array multiplication, with partial derivatives */ +/* with respect to just the input. */ +void icxdpdiiMulBy3x3Parm( + double out[3], /* Return input multiplied by matrix */ + double din[3][3], /* Return deriv for each [output] with respect to [input] */ + double mat[9], /* Matrix organised in [slow][fast] order */ + double in[3] /* Input values */ +) { + double *v, ov[3]; + int e, f; + + /* Compute the output values */ + v = mat; + for (f = 0; f < 3; f++) { + ov[f] = 0.0; /* For each output value */ + for (e = 0; e < 3; e++) { + ov[f] += *v++ * in[e]; + } + } + + /* Compute deriv. with respect to the input values */ + /* This is pretty simple for a matrix ... */ + v = mat; + for (f = 0; f < 3; f++) + for (e = 0; e < 3; e++) + din[f][e] = *v++; + + out[0] = ov[0]; + out[1] = ov[1]; + out[2] = ov[2]; +} + +/* 3x3 matrix in 1D array multiplication, with partial derivatives */ /* with respect to the input and parameters. */ void icxdpdiMulBy3x3Parm( double out[3], /* Return input multiplied by matrix */ @@ -3683,163 +3722,6 @@ void icxdpdiMulBy3x3Parm( out[2] = ov[2]; } -/* ------------------------------------------- */ -/* BT.1886 support */ - -/* Compute technical gamma from effective gamma in BT.1886 style */ - -/* Info for optimization */ -typedef struct { - double thyr; /* 50% input target */ - double roo; /* 0% input target */ -} gam_fits; - -/* gamma + input offset function handed to powell() */ -static double gam_fit(void *dd, double *v) { - gam_fits *gf = (gam_fits *)dd; - double gamma = v[0]; - double a, b; - double rv = 0.0; - double tt; - - if (gamma < 0.0) { - rv += 100.0 * -gamma; - gamma = 1e-4; - } - - tt = pow(gf->roo, 1.0/gamma); - b = tt/(1.0 - tt); /* Offset */ - a = pow(1.0 - tt, gamma); /* Gain */ - - tt = a * pow((0.5 + b), gamma); - tt = tt - gf->thyr; - rv += tt * tt; - - return rv; -} - -/* Given the effective gamma and the output offset Y, */ -/* return the technical gamma needed for the correct 50% response. */ -double xicc_tech_gamma( - double egamma, /* effective gamma needed */ - double off /* Output offset required */ -) { - gam_fits gf; - double op[1], sa[1], rv; - - if (off <= 0.0) { - return egamma; - } - - gf.thyr = pow(0.5, egamma); /* Advetised 50% target */ - gf.roo = off; - - op[0] = egamma; - sa[0] = 0.1; - - if (powell(&rv, 1, op, sa, 1e-6, 500, gam_fit, (void *)&gf, NULL, NULL) != 0) - warning("Computing effective gamma and input offset is inaccurate"); - - return op[0]; -} - - -/* Set the bt1886_info to a default do nothing state */ -void bt1886_setnop(bt1886_info *p) { - p->ingo = 0.0; - p->outsc = 1.0; - p->outL = 0.0; - p->tab[0] = 0.0; - p->tab[1] = 0.0; -} - -/* Setup the bt1886_info for the given target */ -void bt1886_setup(bt1886_info *p, double *XYZbp, double gamma) { - double Lab[3], bkipow; - p->gamma = gamma; - - icmXYZ2Lab(&icmD50, Lab, XYZbp); - - p->outL = Lab[0]; /* For bp blend */ - p->tab[0] = Lab[1]; /* a* b* correction needed */ - p->tab[1] = Lab[2]; - - bkipow = pow(XYZbp[1], 1.0/p->gamma); - p->ingo = bkipow/(1.0 - bkipow); /* non-linear Y that makes out black point */ - p->outsc = pow(1.0 - bkipow, p->gamma); /* Scale to restore 1 -> 1 */ -} - -/* Apply BT.1886 black offset and gamma curve to the XYZ out of the input profile. */ -/* Do this in the colorspace defined by the input profile matrix lookup, */ -/* so it will be relative XYZ. We assume that BT.1886 does a Rec709 to gamma */ -/* viewing adjustment, irrespective of the source profile transfer curve. */ -void bt1886_apply(bt1886_info *p, icmLuMatrix *lu, double *out, double *in) { - int j; - double vv; - -#ifdef DEBUG - printf("bt1886 XYZ in %f %f %f\n", in[0],in[1],in[2]); -#endif - - lu->bwd_matrix(lu, out, in); - -#ifdef DEBUG - printf("bt1886 RGB in %f %f %f\n", out[0],out[1],out[2]); -#endif - - for (j = 0; j < 3; j++) { - vv = out[j]; - - /* Convert linear light to Rec709 transfer curve */ - if (vv < 0.018) - vv = 4.5 * vv; - else - vv = 1.099 * pow(vv, 0.45) - 0.099; - - /* Apply input offset & re-scale, and then gamma of 2.4/custom gamma */ - vv = vv + p->ingo; - - if (vv > 0.0) - vv = p->outsc * pow(vv, p->gamma); - - out[j] = vv; - } - - lu->fwd_matrix(lu, out, out); - -#ifdef DEBUG - printf("bt1886 RGB bt.1886 %f %f %f\n", out[0],out[1],out[2]); -#endif - - icmXYZ2Lab(&icmD50, out, out); - -#ifdef DEBUG - printf("bt1886 Lab after Y adj. %f %f %f\n", out[0],out[1],out[2]); -#endif - - /* Blend ab to required black point offset p->tab[] as L approaches black. */ - vv = (out[0] - p->outL)/(100.0 - p->outL); /* 0 at bp, 1 at wp */ - vv = 1.0 - vv; - - if (vv < 0.0) - vv = 0.0; - else if (vv > 1.0) - vv = 1.0; - vv = pow(vv, 40.0); - out[1] += vv * p->tab[0]; - out[2] += vv * p->tab[1]; - -#ifdef DEBUG - printf("bt1886 Lab after wp adj. %f %f %f\n", out[0],out[1],out[2]); -#endif - - icmLab2XYZ(&icmD50, out, out); - -#ifdef DEBUG - printf("bt1886 XYZ out %f %f %f\n", out[0],out[1],out[2]); -#endif -} - /* - - - - - - - - - - */ #undef stricmp @@ -3860,8 +3742,6 @@ void bt1886_apply(bt1886_info *p, icmLuMatrix *lu, double *out, double *in) { - - diff --git a/xicc/xicc.h b/xicc/xicc.h index 2e69ef1..37fff5d 100644 --- a/xicc/xicc.h +++ b/xicc/xicc.h @@ -101,6 +101,7 @@ const char *icx2str(icmEnumType etype, int enumval); struct _icxMatrixModel { void *imp; /* Opaque implementation */ + icc *picc; /* ICC profile used to set cone space matrix, NULL for Bradford. */ int isLab; /* Convert lookup to Lab */ void (*force) (struct _icxMatrixModel *p, double *targ, double *in); @@ -112,6 +113,7 @@ struct _icxMatrixModel { /* Create a matrix model of a set of points, and return an object to lookup */ /* points from the model. Return NULL on error. */ icxMatrixModel *new_MatrixModel( +icc *picc, /* ICC profile used to set cone space matrix, NULL for Bradford. */ int verb, /* NZ if verbose */ int nodp, /* Number of points */ cow *ipoints, /* Array of input points in XYZ space */ @@ -186,7 +188,7 @@ typedef struct { double Lv; /* Luminance of white in the Image/Scene/Viewing field (cd/m^2) */ /* Ignored if Ev is set to other than vc_none */ double Yf; /* Flare as a fraction of the reference white (Y range 0.0 .. 1.0) */ - double Yg; /* Glare as a fraction of the ambient (Y range 0.0 .. 1.0) */ + double Yg; /* Glare as a fraction of the adapting/surround (Y range 0.0 .. 1.0) */ double Gxyz[3]; /* The Glare white coordinates (ie the Ambient color) */ /* will be taken from Wxyz if Gxyz <= 0.0 */ char *desc; /* Possible description of this VC */ @@ -302,6 +304,7 @@ struct _xicc { /* value and is known */ double wpscale, /* > 0.0 if input white pt is */ /* is to be scaled */ +// double *bpo, /* != NULL black point override */ double smooth, /* RSPL smoothing factor, */ /* -ve if raw */ double avgdev, /* Avge Dev. of points */ @@ -897,15 +900,23 @@ double *in /* Input di values */ /* - - - - - - - - - - */ -/* 3x3 matrix multiplication, with the matrix in a 1D array */ -/* with respect to the input and parameters. */ +/* 3x3 matrix in 1D array multiplication */ void icxMulBy3x3Parm( double out[3], /* Return input multiplied by matrix */ double mat[9], /* Matrix organised in [slow][fast] order */ double in[3] /* Input values */ ); -/* 3x3 matrix multiplication, with partial derivatives */ +/* 3x3 matrix in 1D array multiplication, with partial derivatives */ +/* with respect to just the input. */ +void icxdpdiiMulBy3x3Parm( + double out[3], /* Return input multiplied by matrix */ + double din[3][3], /* Return deriv for each [output] with respect to [input] */ + double mat[9], /* Matrix organised in [slow][fast] order */ + double in[3] /* Input values */ +); + +/* 3x3 matrix in 1D array multiplication, with partial derivatives */ /* with respect to the input and parameters. */ void icxdpdiMulBy3x3Parm( double out[3], /* Return input multiplied by matrix */ @@ -915,32 +926,6 @@ void icxdpdiMulBy3x3Parm( double in[3] /* Input values */ ); -/* ------------------------------------------- */ -/* BT.1886 support */ - -/* Convert an effective gamma given an offset into a technical gamma */ -double xicc_tech_gamma(double egamma, double off); - -typedef struct { - double ingo; /* input Y gamma offset for bt1886 */ - double outsc; /* output Y scale for bt1886 */ - double outL; /* output black point L value */ - double tab[2]; /* Target ab offset value at zero input for bt1886 */ - double gamma; /* bt.1886 technical gamma to apply */ -} bt1886_info; - -/* Set the bt1886_info to a default do nothing state */ -void bt1886_setnop(bt1886_info *p); - -/* Setup the bt1886_info for the given target */ -void bt1886_setup(bt1886_info *p, double *XYZbp, double gamma); - -/* Apply BT.1886 black offset and gamma curve to */ -/* the XYZ out of the input profile. */ -/* Do this in the colorspace defined by the input profile matrix lookup, */ -/* so it will be relative XYZ */ -void bt1886_apply(bt1886_info *p, icmLuMatrix *lu, double *out, double *in); - /* - - - - - - - - - - */ #include "xcal.h" diff --git a/xicc/xicclu.c b/xicc/xicclu.c index 4987e65..f3b1267 100644 --- a/xicc/xicclu.c +++ b/xicc/xicclu.c @@ -34,8 +34,9 @@ #include "copyright.h" #include "aconfig.h" #include "numlib.h" -#include "plot.h" #include "xicc.h" +#include "plot.h" +#include "ui.h" #undef SPTEST /* Test rspl gamut surface code */ @@ -152,7 +153,7 @@ void spioutf(void *cbntx, double *out, double *in) { int main(int argc, char *argv[]) { - int fa,nfa; /* argument we're looking at */ + int fa, nfa, mfa; /* argument we're looking at */ char prof_name[MAXNAMEL+1]; icmFile *fp = NULL; icc *icco = NULL; @@ -187,8 +188,8 @@ main(int argc, char *argv[]) { int repLCh = 0; /* Report LCh */ int repXYZ100 = 0; /* Scale XYZ by 10 */ double scale = 0.0; /* Device value scale factor */ - int in_tvenc; /* 1 to use RGB Video Level encoding, 2 = Rec601, 3 = Rec709 YCbCr */ - int out_tvenc; /* 1 to use RGB Video Level encoding, 2 = Rec601, 3 = Rec709 YCbCr */ + int in_tvenc = 0; /* 1 to use RGB Video Level encoding, 2 = Rec601, 3 = Rec709 YCbCr */ + int out_tvenc = 0; /* 1 to use RGB Video Level encoding, 2 = Rec601, 3 = Rec709 YCbCr */ int rv = 0; char buf[200]; double uin[MAX_CHAN], in[MAX_CHAN], out[MAX_CHAN], uout[MAX_CHAN]; @@ -224,7 +225,8 @@ main(int argc, char *argv[]) { usage("Too few arguments"); /* Process the arguments */ - for(fa = 1;fa < argc;fa++) { + mfa = 1; /* Minimum final arguments */ + for (fa = 1;fa < argc;fa++) { nfa = fa; /* skip to nfa if next argument is used */ if (argv[fa][0] == '-') { /* Look for any flags */ char *na = NULL; /* next argument after flag, null if none */ @@ -232,7 +234,7 @@ main(int argc, char *argv[]) { if (argv[fa][2] != '\000') na = &argv[fa][2]; /* next is directly after flag */ else { - if ((fa+1) < argc) { + if ((fa+1+mfa) < argc) { if (argv[fa+1][0] != '-') { nfa = fa + 1; na = argv[nfa]; /* next is seperate non-flag argument */ @@ -244,11 +246,10 @@ main(int argc, char *argv[]) { usage("Requested usage"); /* Verbosity */ - else if (argv[fa][1] == 'v' || argv[fa][1] == 'V') { - fa = nfa; - if (na == NULL) + else if (argv[fa][1] == 'v') { + if (na == NULL) { verb = 2; - else { + } else { if (na[0] == '0') verb = 0; else if (na[0] == '1') @@ -257,6 +258,7 @@ main(int argc, char *argv[]) { verb = 2; else usage("Illegal verbosity level"); + fa = nfa; } } @@ -266,7 +268,6 @@ main(int argc, char *argv[]) { } /* Plot start or end override */ else if (argv[fa][1] == 'G') { - fa = nfa; if (na == NULL) usage("No parameter after flag -G"); if (na[0] == 's' || na[0] == 'S') { if (sscanf(na+1,":%lf:%lf:%lf",&pstart[0],&pstart[1],&pstart[2]) != 3) @@ -276,6 +277,7 @@ main(int argc, char *argv[]) { usage("Unrecognised parameters after -Ge"); } else usage("Unrecognised parameters after -G"); + fa = nfa; } /* Actual target values */ else if (argv[fa][1] == 'a') { @@ -299,10 +301,10 @@ main(int argc, char *argv[]) { } /* Device scale */ else if (argv[fa][1] == 's') { - fa = nfa; if (na == NULL) usage("No parameter after flag -s"); scale = atof(na); if (scale <= 0.0) usage("Illegal scale value"); + fa = nfa; } /* Video RGB encoding */ else if (argv[fa][1] == 'e' @@ -343,7 +345,6 @@ main(int argc, char *argv[]) { /* function */ else if (argv[fa][1] == 'f') { - fa = nfa; if (na == NULL) usage("No parameter after flag -f"); switch (na[0]) { case 'f': @@ -375,11 +376,11 @@ main(int argc, char *argv[]) { default: usage("Unknown parameter after flag -f"); } + fa = nfa; } /* Intent */ else if (argv[fa][1] == 'i') { - fa = nfa; if (na == NULL) usage("No parameter after flag -i"); switch (na[0]) { case 'p': @@ -405,11 +406,11 @@ main(int argc, char *argv[]) { default: usage("Unknown parameter after flag -i"); } + fa = nfa; } /* PCS override */ else if (argv[fa][1] == 'p') { - fa = nfa; if (na == NULL) usage("No parameter after flag -i"); switch (na[0]) { case 'x': @@ -465,11 +466,11 @@ main(int argc, char *argv[]) { default: usage("Unknown parameter after flag -i"); } + fa = nfa; } /* Search order */ else if (argv[fa][1] == 'o') { - fa = nfa; if (na == NULL) usage("No parameter after flag -o"); switch (na[0]) { case 'n': @@ -483,12 +484,12 @@ main(int argc, char *argv[]) { default: usage("Unknown parameter after flag -o"); } + fa = nfa; } /* Inking rule */ else if (argv[fa][1] == 'k' || argv[fa][1] == 'K') { - fa = nfa; if (na == NULL) usage("No parameter after flag -k"); if (argv[fa][1] == 'k') locus = 0; /* K value target */ @@ -573,18 +574,19 @@ main(int argc, char *argv[]) { default: usage("Unknown parameter after flag -k"); } + fa = nfa; } else if (argv[fa][1] == 'l') { - fa = nfa; if (na == NULL) usage("No parameter after flag -l"); tlimit = atoi(na)/100.0; + fa = nfa; } else if (argv[fa][1] == 'L') { - fa = nfa; if (na == NULL) usage("No parameter after flag -L"); klimit = atoi(na)/100.0; + fa = nfa; } #ifdef SPTEST @@ -597,7 +599,6 @@ main(int argc, char *argv[]) { #endif /* Viewing conditions */ else if (argv[fa][1] == 'c') { - fa = nfa; if (na == NULL) usage("No parameter after flag -c"); #ifdef NEVER if (na[0] >= '0' && na[0] <= '9') { @@ -658,6 +659,7 @@ main(int argc, char *argv[]) { usage("Unrecognised parameters after -cg"); } else usage("Unrecognised parameters after -c"); + fa = nfa; } else @@ -674,14 +676,6 @@ main(int argc, char *argv[]) { error("chrom_locus_poligon failed"); } - if (verb > 1) { - icmFile *op; - if ((op = new_icmFileStd_fp(stdout)) == NULL) - error ("Can't open stdout"); - icco->header->dump(icco->header, op, 1); - op->del(op); - } - /* Open up the profile for reading */ if ((fp = new_icmFileStd_name(prof_name,"r")) == NULL) error ("Can't open file '%s'",prof_name); @@ -959,6 +953,15 @@ main(int argc, char *argv[]) { outn = inn = cal->devchan; } + if (verb > 1 && icco != NULL) { + icmFile *op; + if ((op = new_icmFileStd_fp(stdout)) == NULL) + error ("Can't open stdout"); + icco->header->dump(icco->header, op, 1); + op->del(op); + } + + if (doplot) { int i, j; double xx[XRES]; diff --git a/xicc/xlut.c b/xicc/xlut.c index bbad934..5b07ca5 100644 --- a/xicc/xlut.c +++ b/xicc/xlut.c @@ -6,7 +6,7 @@ * Date: 2/7/00 * Version: 1.00 * - * Copyright 2000, 2001 Graeme W. Gill + * Copyright 2000, 2001, 2014 Graeme W. Gill * All rights reserved. * This material is licenced under the GNU AFFERO GENERAL PUBLIC LICENSE Version 3 :- * see the License.txt file for licencing details. @@ -155,6 +155,8 @@ #undef REPORT_LOCUS_SEGMENTS /* [Undef[ Examine how many segments there are in aux inversion */ #define XYZ_EXTRA_SMOOTH 20.0 /* Extra smoothing factor for XYZ profiles */ + /* !!! Note this is mainly due to smoothing being */ + /* scaled by data range in rspl code !!! */ #define SHP_SMOOTH 1.0 /* Input shaper curve smoothing */ #define OUT_SMOOTH1 1.0 /* Output shaper curve smoothing for L*, X,Y,Z */ #define OUT_SMOOTH2 1.0 /* Output shaper curve smoothing for a*, b* */ @@ -177,13 +179,6 @@ * error(), should return status. */ -#ifndef _CAT2 -#define _CAT2(n1,n2) n1 ## n2 -#define CAT2(n1,n2) _CAT2(n1,n2) -#endif - - - static double icxLimitD(icxLuLut *p, double *in); /* For input' */ #define icxLimitD_void ((double (*)(void *, double *))icxLimitD) /* Cast with void 1st arg */ static double icxLimit(icxLuLut *p, double *in); /* For input */ @@ -2855,6 +2850,7 @@ cow *ipoints, /* Array of input points (Lab or XYZ normalized to icxMatrixModel *skm, /* Optional skeleton model (used for input profiles) */ double dispLuminance, /* > 0.0 if display luminance value and is known */ double wpscale, /* > 0.0 if white point is to be scaled */ +//double *bpo, /* != NULL for XYZ black point override dev & XYZ */ double smooth, /* RSPL smoothing factor, -ve if raw */ double avgdev, /* reading Average Deviation as a prop. of the input range */ double demph, /* dark emphasis factor for cLUT grid res. */ @@ -2878,6 +2874,7 @@ int quality /* Quality metric, 0..3 */ double oavgdev[MXDO]; /* Average output value deviation */ int gres[MXDI]; /* RSPL/CLUT resolution */ xfit *xf = NULL; /* Curve fitting class instance */ +// co bpop; /* bpo dev + XYZ value */ if (flags & ICX_VERBOSE) rsplflags |= RSPL_VERBOSE; @@ -2933,6 +2930,9 @@ int quality /* Quality metric, 0..3 */ /* very "straight", and the lack of tension reduces any noise reduction effect. */ /* !!! This probably means that we should switch to 3rd order smoothness criteria !! */ /* We apply an arbitrary correction here */ + /* !!!! There is also a bug in the rspl code, where smoothness is */ + /* scaled by data range. This is making Lab smoothing ~100 times */ + /* more than XYZ smoothing. Fix this with SMOOTH2 changes ?? */ if (p->pcs == icSigXYZData) { oavgdev[0] = XYZ_EXTRA_SMOOTH * 0.70 * avgdev; oavgdev[1] = XYZ_EXTRA_SMOOTH * 1.00 * avgdev; @@ -3176,6 +3176,8 @@ int quality /* Quality metric, 0..3 */ nw++; } } + /* Setup bpo device value in case we need it */ +// bpop.p[0] = bpop.p[1] = bpop.p[2] = 0.0; break; case icSigGrayData: { /* Could be additive or subtractive */ @@ -3207,6 +3209,7 @@ int quality /* Quality metric, 0..3 */ nw = nminwp; if (minwp[pcsy]/nminwp < (0.5 * pcsymax)) nw = 0; /* Looks like a mistake */ +// bpop.p[0] = 1.0; } if (nmaxwp > 0 /* Additive */ && (nminwp == 0 || maxwp[pcsy]/nmaxwp > minwp[pcsy]/nminwp)) { @@ -3216,6 +3219,7 @@ int quality /* Quality metric, 0..3 */ nw = nmaxwp; if (maxwp[pcsy]/nmaxwp < (0.5 * pcsymax)) nw = 0; /* Looks like a mistake */ +// bpop.p[0] = 0.0; } break; } @@ -3240,6 +3244,12 @@ int quality /* Quality metric, 0..3 */ wp[2] /= (double)nw; if (p->pcs != icSigXYZData) /* Convert white point to XYZ */ icmLab2XYZ(&icmD50, wp, wp); + +// if (bpo != NULL) { /* Copy black override XYZ value */ +// bpop.v[0] = bpo[0]; +// bpop.v[1] = bpo[1]; +// bpop.v[2] = bpo[2]; +// } } if (flags & ICX_VERBOSE) { @@ -3274,7 +3284,7 @@ int quality /* Quality metric, 0..3 */ optcomb tcomb = oc_ipo; /* Create all by default */ - if ((xf = CAT2(new_, xfit)()) == NULL) { + if ((xf = new_xfit(icco)) == NULL) { p->pp->errc = 2; sprintf(p->pp->err,"Creation of xfit object failed"); p->del((icxLuBase *)p); @@ -3374,6 +3384,7 @@ int quality /* Quality metric, 0..3 */ if (xf->fit(xf, xfflags, p->inputChan, p->outputChan, rsplflags, wp, dwhite, wpscale, dgwhite, ipoints, nodp, skm, in_min, in_max, gres, out_min, out_max, +// bpo != NULL ? &bpop : NULL, smooth, oavgdev, demph, iord, sord, oord, shp_smooth, out_smooth, tcomb, (void *)p, xfit_to_de2, xfit_to_dde2) != 0) { p->pp->errc = 2; @@ -3533,7 +3544,7 @@ int quality /* Quality metric, 0..3 */ /* to use for the rich black. */ for (e = 0; e < p->inputChan; e++) bcc.p[e] = 0.0; - if (p->ink.klimit < 0.0) + if (p->ink.klimit <= 0.0) bcc.p[kch] = 1.0; else bcc.p[kch] = p->ink.klimit; /* K value */ @@ -3552,10 +3563,6 @@ int quality /* Quality metric, 0..3 */ if (flags & ICX_VERBOSE) printf("K only black direction (Lab) = %f %f %f\n",bfs.p2[0], bfs.p2[1], bfs.p2[2]); #endif - /* Start with the K only as the current best value */ - brv = bfindfunc((void *)&bfs, bcc.p); -//printf("~1 initial brv for K only = %f\n",brv); - /* Set the random start 0 location as 000K */ /* and the random start 1 location as CMY0 */ { @@ -3563,12 +3570,12 @@ int quality /* Quality metric, 0..3 */ for (e = 0; e < p->inputChan; e++) rs0[e] = 0.0; - if (p->ink.klimit < 0.0) + if (p->ink.klimit <= 0.0) rs0[kch] = 1.0; else rs0[kch] = p->ink.klimit; /* K value */ - if (p->ink.tlimit < 0.0) + if (p->ink.tlimit <= 0.0) tv = 1.0; else tv = p->ink.tlimit/(p->inputChan - 1.0); @@ -3577,6 +3584,12 @@ int quality /* Quality metric, 0..3 */ rs1[kch] = 0.0; /* K value */ } + /* Start with the K only as the current best value */ + for (e = 0; e < p->inputChan; e++) + bcc.p[e] = rs0[e]; + brv = bfindfunc((void *)&bfs, bcc.p); +//printf("~1 initial brv for K only = %f\n",brv); + /* Find the device black point using optimization */ /* Do several trials to avoid local minima. */ rand32(0x12345678); /* Make trial values deterministic */ @@ -3697,6 +3710,13 @@ int quality /* Quality metric, 0..3 */ wp[i] *= scale; bp[i] *= scale; } + +// if (bpo != NULL) { +// bp[0] = bpo[0]; +// bp[1] = bpo[1]; +// bp[2] = bpo[2]; +// printf("Overide Black point XYZ = %s, Lab = %s\n", icmPdv(3,bp),icmPLab(bp)); +// } } if (h->deviceClass == icSigDisplayClass diff --git a/xicc/xmatrix.c b/xicc/xmatrix.c index 53db237..034a396 100644 --- a/xicc/xmatrix.c +++ b/xicc/xmatrix.c @@ -34,6 +34,8 @@ * */ + + #define USE_CIE94_DE /* Use CIE94 delta E measure when creating fit */ /* Weights in shaper parameters, to minimise unconstrained "wiggles" */ @@ -51,6 +53,7 @@ #undef DEBUG /* Extra printfs */ #undef DEBUG_PLOT /* Plot curves */ +#define G_DEB 0 /* g_deb default value */ /* ========================================================= */ /* Forward and Backward Matrix type conversion */ @@ -84,9 +87,8 @@ double *in /* Vector of input values */ int rv = 0; rv |= ((icmLuMatrix *)p->plu)->fwd_abs((icmLuMatrix *)p->plu, out, in); - if (p->pcs == icxSigJabData) { + if (p->pcs == icxSigJabData) p->cam->XYZ_to_cam(p->cam, out, out); - } return rv; } @@ -614,6 +616,8 @@ double *v /* Pointer to parameters */ return XSHAPE_MAG * tparam/3.0; } +int g_deb = G_DEB; + /* Matrix optimisation function handed to powell() */ static double mxoptfunc(void *edata, double *v) { mxopt *p = (mxopt *)edata; @@ -621,6 +625,8 @@ static double mxoptfunc(void *edata, double *v) { double xyz[3], lab[3]; int i; + if (g_deb) printf("\n"); + for (i = 0; i < p->nodp; i++) { /* Apply our function */ @@ -629,7 +635,7 @@ static double mxoptfunc(void *edata, double *v) { /* Convert to Lab */ icmXYZ2Lab(&p->wp, lab, xyz); -//printf("%f %f %f -> %f %f %f, target %f %f %f\n", p->points[i].p[0], p->points[i].p[1], p->points[i].p[2], lab[0], lab[1], lab[2], p->points[i].v[0], p->points[i].v[1], p->points[i].v[2]); +if (g_deb) printf("%d: %f %f %f -> %f %f %f, target %f %f %f, w %f\n", i, p->points[i].p[0], p->points[i].p[1], p->points[i].p[2], lab[0], lab[1], lab[2], p->points[i].v[0], p->points[i].v[1], p->points[i].v[2],p->points[i].w); /* Accumulate total delta E squared */ #ifdef USE_CIE94_DE @@ -674,6 +680,7 @@ static double mxoptfunc(void *edata, double *v) { rv += err * 1000.0; #ifdef DEBUG +if (g_deb) printf("~9(%f)mxoptfunc returning %f\n",smv,rv); #endif @@ -774,8 +781,8 @@ double scale /* Scale device values */ /* Set quality/effort factors */ if (quality >= 3) { /* Ultra high */ os->norders = 20; - maxits = 10000; - stopon = 5e-7; + maxits = 50000; + stopon = 1e-14; } else if (quality == 2) { /* High */ os->norders = 12; maxits = 5000; @@ -845,15 +852,22 @@ double scale /* Scale device values */ icmLab2XYZ(&icmD50, points[i].v, points[i].v); icmXYZ2Lab(&os->wp, points[i].v, points[i].v); icmLab2LCh(lch, points[i].v); + /* Apply any neutral weighting */ if (lch[1] < 10.0) { double w = nweight; if (lch[1] > 5.0) w = 1.0 + (nweight - 1.0) * (10.0 - lch[1])/(10.0 - 5.0); - points[i].w = w; + points[i].w *= w; } //printf("~1 patch %d = Lab %f %f %f, C = %f w = %f\n",i,points[i].v[0], points[i].v[1], points[i].v[2], lch[1],points[i].w); } + +#if !defined(NOT_PRIVATE) && defined(HACK) +# pragma message("!!!!!!!!!!!!!!! xicc/xmatrix.c HACK code enabled !!!!!!!!!!!!!!!!!!") + printf("!!!! HACK: setting white point ixt %d weight to zero\n",wix); + points[wix].w = 0.0; +#endif } /* Set initial matrix optimisation values */ @@ -1025,6 +1039,7 @@ double scale /* Scale device values */ if (os->verb) printf("Creating matrix and curves...\n"); +//g_deb = 1; if (powell(&rerr, os->optdim, os->v, os->sa, stopon, maxits, mxoptfunc, (void *)os, mxprogfunc, (void *)os) != 0) warning("Powell failed to converge, residual error = %f",rerr); @@ -1117,7 +1132,10 @@ static void icxMM_force_exact(icxMatrixModel *p, double *targ, double *rgb) { icmAry2XYZ(_ap, axyz); icmAry2XYZ(_tp, txyz); - icmChromAdaptMatrix(ICM_CAM_BRADFORD, _tp, _ap, cmat); + if (p->picc != NULL) + p->picc->chromAdaptMatrix(p->picc, ICM_CAM_NONE, _tp, _ap, cmat); + else + icmChromAdaptMatrix(ICM_CAM_BRADFORD, _tp, _ap, cmat); /* Apply correction to fine tune matrix. */ mxtransform(os, cmat); @@ -1140,6 +1158,7 @@ static void icxMM_del(icxMatrixModel *p) { /* Create a matrix model of a set of points, and return an object to lookup */ /* points from the model. Return NULL on error. */ icxMatrixModel *new_MatrixModel( +icc *picc, /* ICC profile used to set cone space matrix, NULL for Bradford. */ int verb, /* NZ if verbose */ int nodp, /* Number of points */ cow *ipoints, /* Array of input points in XYZ space */ @@ -1159,6 +1178,7 @@ double scale /* Scale device values */ if ((p = (icxMatrixModel *) calloc(1,sizeof(icxMatrixModel))) == NULL) return NULL; + p->picc = picc; p->force = icxMM_force_exact; p->lookup = icxMM_lookup; p->del = icxMM_del; @@ -1201,6 +1221,7 @@ cow *ipoints, /* Array of input points in XYZ space */ icxMatrixModel *skm, /* Optional skeleton model (not used here) */ double dispLuminance, /* > 0.0 if display luminance value and is known */ double wpscale, /* > 0.0 if input white point is to be scaled */ +//double *bpo, /* != NULL for XYZ black point override dev & XYZ */ int quality, /* Quality metric, 0..3 */ double smooth /* Curve smoothing, nominally 1.0 */ ) { @@ -1485,10 +1506,10 @@ double smooth /* Curve smoothing, nominally 1.0 */ icmAry2XYZ(_wp, wp); /* Absolute->Aprox. Relative Adaptation matrix */ - icmChromAdaptMatrix(ICM_CAM_BRADFORD, icmD50, _wp, fromAbs); + icco->chromAdaptMatrix(icco, ICM_CAM_NONE, icmD50, _wp, fromAbs); /* Aproximate relative to absolute conversion matrix */ - icmChromAdaptMatrix(ICM_CAM_BRADFORD, _wp, icmD50, toAbs); + icco->chromAdaptMatrix(icco, ICM_CAM_NONE, _wp, icmD50, toAbs); } } else { @@ -1497,7 +1518,8 @@ double smooth /* Curve smoothing, nominally 1.0 */ } /* Create copy of input points with output converted to white relative */ - if ((rpoints = (cow *)malloc(nodp * sizeof(cow))) == NULL) { + /* Allow one extra point for possible bpo value */ + if ((rpoints = (cow *)malloc((nodp+1) * sizeof(cow))) == NULL) { xicp->errc = 1; sprintf(xicp->err,"set_icxLuMatrix: malloc failed"); p->del((icxLuBase *)p); @@ -1513,7 +1535,43 @@ double smooth /* Curve smoothing, nominally 1.0 */ /* abs out -> aprox. rel out */ icmMulBy3x3(rpoints[i].v, fromAbs, rpoints[i].v); } - + +#ifdef NEVER + /* If black point override and shaper curves */ + if (bpo != NULL && !isLinear && !isGamma) { + double tw = 0.0; /* Total weight */ + +printf("Got bpo\n"); + /* Zero out any black data points, and sum up total weihting */ + for (i = 0; i < nodp; i++) { + if (rpoints[i].p[0] < 0.001 /* We're assuming RGB */ + && rpoints[i].p[1] < 0.001 + && rpoints[i].p[2] < 0.001) { + rpoints[i].w = 0.0; +printf("Zero'd point %d\n",i); + } + tw += rpoints[i].w; + } +printf("Total weight = %f\n",tw); + + /* Add our override black point */ + /* and give it a dominant weighting */ + for (e = 0; e < inputChan; e++) + rpoints[nodp].p[e] = 0.0; + for (f = 0; f < outputChan; f++) + rpoints[nodp].v[f] = bpo[f]; +printf(" set black to %f %f %f\n", bpo[0], bpo[1], bpo[2]); + + /* abs out -> aprox. rel out */ + icmMulBy3x3(rpoints[nodp].v, fromAbs, rpoints[nodp].v); + + rpoints[nodp].w = 20.0 * tw; +printf(" set black %d w = %f\n", nodp,rpoints[nodp].w); + + nodp++; + } +#endif // NEVER + /* ------------------------------- */ /* (Use a gamma curve as 0th order shape) */ @@ -1529,6 +1587,10 @@ double smooth /* Curve smoothing, nominally 1.0 */ } free(rpoints); rpoints = NULL; +#if !defined(NOT_PRIVATE) && defined(HACK) +# pragma message("!!!!!!!!!!!!!!! xicc/xmatrix.c HACK code enabled !!!!!!!!!!!!!!!!!!") + printf("!!!! HACK: skipping white point fine tune\n"); +#else /* The overall device to absolute conversion is now what we want */ /* (as dictated by the points, weighting and best fit), */ /* but we need to adjust the device to relative conversion */ @@ -1553,7 +1615,7 @@ double smooth /* Curve smoothing, nominally 1.0 */ /* Matrix needed to correct aprox white to target D50 */ icmAry2XYZ(_wp, aw); /* Aprox relative target white point */ - icmChromAdaptMatrix(ICM_CAM_BRADFORD, icmD50, _wp, cmat); /* Correction */ + icco->chromAdaptMatrix(icco, ICM_CAM_NONE, icmD50, _wp, cmat); /* Correction */ /* Compute the current absolute white point */ icmMulBy3x3(wp, toAbs, aw); @@ -1563,8 +1625,8 @@ double smooth /* Curve smoothing, nominally 1.0 */ /* Fix relative conversions to leave absolute response unchanged. */ icmAry2XYZ(_wp, wp); /* Actual white point */ - icmChromAdaptMatrix(ICM_CAM_BRADFORD, icmD50, _wp, fromAbs); - icmChromAdaptMatrix(ICM_CAM_BRADFORD, _wp, icmD50, toAbs); + icco->chromAdaptMatrix(icco, ICM_CAM_NONE, icmD50, _wp, fromAbs); + icco->chromAdaptMatrix(icco, ICM_CAM_NONE, _wp, icmD50, toAbs); if (flags & ICX_VERBOSE) { double tw[3]; @@ -1573,6 +1635,7 @@ double smooth /* Curve smoothing, nominally 1.0 */ printf(" abs WP = XYZ %s, Lab %s\n", icmPdv(3, wp), icmPLab(wp)); } } +#endif /* Create default wpscale */ if (wpscale < 0.0) { @@ -1657,8 +1720,8 @@ double smooth /* Curve smoothing, nominally 1.0 */ /* Fix absolute conversions to leave absolute response unchanged. */ icmAry2XYZ(_wp, wp); /* Actual white point */ - icmChromAdaptMatrix(ICM_CAM_BRADFORD, icmD50, _wp, fromAbs); - icmChromAdaptMatrix(ICM_CAM_BRADFORD, _wp, icmD50, toAbs); + icco->chromAdaptMatrix(icco, ICM_CAM_NONE, icmD50, _wp, fromAbs); + icco->chromAdaptMatrix(icco, ICM_CAM_NONE, _wp, icmD50, toAbs); } /* Look up the actual black point */ diff --git a/xicc/xspect.c b/xicc/xspect.c index cc0ce85..477892b 100644 --- a/xicc/xspect.c +++ b/xicc/xspect.c @@ -98,6 +98,73 @@ static int gcc_bug_fix(int i) { /* Dummy "no illuminant" illuminant spectra used to signal an emmission */ /* or equal energy 'E' illuminant */ +static xspect il_none = { + 531, 300.0, 830.0, /* 531 bands from 300 to 830 in 1nm steps */ + 1.0, /* Scale factor */ + { + 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, + 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, + 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, + 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, + 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, + 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, + 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, + 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, + 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, + 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, + + 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, + 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, + 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, + 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, + 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, + 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, + 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, + 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, + 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, + 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, + + 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, + 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, + 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, + 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, + 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, + 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, + 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, + 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, + 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, + 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, + + 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, + 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, + 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, + 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, + 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, + 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, + 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, + 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, + 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, + 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, + + 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, + 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, + 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, + 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, + 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, + 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, + 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, + 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, + 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, + 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, + + 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, + 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, + 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, + 1.0 + } +}; + +#ifdef NEVER static xspect il_none = { 54, 300.0, 830.0, /* 54 bands from 300 to 830 in 10nm steps */ 1.0, /* Scale factor */ @@ -110,6 +177,7 @@ static xspect il_none = { 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0 } }; +#endif /* NEVER */ /* CIE 15.2-1986 Table 1.1 */ @@ -478,9 +546,13 @@ double temp /* Optional temperature in degrees kelvin, for Dtemp and Ptemp * uv_filter(&il_D50M2, &il_D50); *sp = il_D50M2; return 0; + case icxIT_D55: + return daylight_il(sp, 5500.0); case icxIT_D65: *sp = il_D65; return 0; + case icxIT_D75: + return daylight_il(sp, 7500.0); case icxIT_E: *sp = il_none; return 0; @@ -3427,6 +3499,7 @@ void xspect_denorm(xspect *sp) { } #ifndef SALONEINSTLIB + /* Convert from one xspect type to another (targ type) */ /* Linear or polinomial interpolation will be used as appropriate */ /* (converted to targ norm too) */ @@ -3457,6 +3530,54 @@ void xspect2xspect(xspect *dst, xspect *targ, xspect *src) { *dst = dd; } +/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */ +/* Plot up to 3 spectra */ +void xspect_plot(xspect *sp1, xspect *sp2, xspect *sp3) { + double xx[XSPECT_MAX_BANDS]; + double y1[XSPECT_MAX_BANDS]; + double y2[XSPECT_MAX_BANDS]; + double y3[XSPECT_MAX_BANDS]; + int j; + double wl, wlshort, wllong; + + if (sp1 == NULL) + return; + + wlshort = sp1->spec_wl_short; + wllong = sp1->spec_wl_long; + + if (sp2 != NULL) { + if (sp2->spec_wl_short < wlshort) + wlshort = sp2->spec_wl_short; + if (sp2->spec_wl_long > wllong) + wllong = sp2->spec_wl_long; + } + + if (sp3 != NULL) { + if (sp3->spec_wl_short < wlshort) + wlshort = sp3->spec_wl_short; + if (sp3->spec_wl_long > wllong) + wllong = sp3->spec_wl_long; + } + + wlshort = floor(wlshort + 0.5); + wllong = floor(wllong + 0.5); + + /* Compute at 1nm intervals over the whole range covered */ + for (j = 0, wl = wlshort; j < XSPECT_MAX_BANDS && wl < wllong; j++, wl += 1.0) { +#if defined(__APPLE__) && defined(__POWERPC__) + gcc_bug_fix(j); +#endif + xx[j] = wl; + y1[j] = value_xspect(sp1, wl); + if (sp2 != NULL) + y2[j] = value_xspect(sp2, wl); + if (sp3 != NULL) + y3[j] = value_xspect(sp3, wl); + } + do_plot(xx, y1, sp2 != NULL ? y2 : NULL, sp3 != NULL ? y3 : NULL, j); +} + /* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */ /* Given an emission spectrum, set the UV output to the given level. */ @@ -3625,6 +3746,13 @@ static int xsp2cie_fwa_apply(xsp2cie *p, xspect *out, xspect *in); FWA spectrum and the actual spectrum under the illuminant to create the correction model. This could be fine tuned by doing similar measurements of neutral patches. + + Other possible limitations: + + Instrument illuminant spectrum shape: + It is assumed it is stable and 'A' like. Aging of + the lamp may invalidate this assumption ? + */ /* @@ -3659,11 +3787,12 @@ static int xsp2cie_set_fwa_imp(xsp2cie *p) { DBG("set_fwa started\n"); - p->bw = 1.0; /* Intergrate over 1nm bands */ + p->bw = 1.0; /* Intergrate over 1nm bands */ p->oillum = p->illuminant; /* Take copy of observer illuminant */ xspect_denorm(&p->oillum); - if (p->tillum.spec_n == 0) { /* If not set by set_fwa(), use observer illuminant */ + if (p->tillum.spec_n == 0) { /* If not set by set_fwa(), copy observer illuminant */ p->tillum = p->oillum; /* as target/simulated instrument illuminant. */ + DBG("using observer illum as FWA target\n"); } /* Compute Y = 1 normalised instrument illuminant spectrum */ @@ -4026,7 +4155,7 @@ static int xsp2cie_set_fwa_imp(xsp2cie *p) { static int xsp2cie_set_fwa(xsp2cie *p, /* this */ xspect *iillum, /* Spectrum of instrument illuminent */ xspect *tillum, /* Spectrum of target/simulated instrument illuminant */ - /* NULL to use observer illuminant. */ + /* NULL to use observer model illuminant. */ xspect *media /* Spectrum of plain media measured under that instrument */ ) { p->iillum = *iillum; /* Take copy of instrument illuminant */ @@ -4035,26 +4164,32 @@ xspect *media /* Spectrum of plain media measured under that instrument */ p->tillum = *tillum; /* Take copy of target/simulated instrument illuminant */ xspect_denorm(&p->tillum); /* Remove normalisation factor */ } else { - p->tillum.spec_n = 0; + p->tillum.spec_n = 0; /* Use observer model illum. as FWA source */ } p->imedia = *media; /* Take copy of measured media */ return xsp2cie_set_fwa_imp(p); } -/* Set FWA given updated conversion illuminant. */ +/* Set FWA given updated conversion illuminants. */ /* We assume that xsp2cie_set_fwa has been called first. */ static int xsp2cie_update_fwa_custillum( xsp2cie *p, /* this */ xspect *tillum, /* Spectrum of target/simulated instrument illuminant, */ /* NULL to use previous set_fwa() value. */ -xspect *custIllum /* Spectrum of observer illuminant */ +xspect *custIllum /* Spectrum of observer model illuminant */ + /* NULL to use previous new_xsp2cie() value. */ ) { if (tillum != NULL) { p->tillum = *tillum; /* Take copy of target/simulated instrument illuminant */ xspect_denorm(&p->tillum); /* Remove normalisation factor */ + } else { + p->tillum.spec_n = 0; /* Use observer model illum. as FWA source */ + } + + if (custIllum != NULL) { + p->illuminant = *custIllum; /* Updated observer model illuminant */ } - p->illuminant = *custIllum; return xsp2cie_set_fwa_imp(p); } @@ -4655,6 +4790,17 @@ void xsp2cie_convert(xsp2cie *p, double *out, xspect *in) { xsp2cie_sconvert(p, NULL, out, in); } +/* Return the illuminant XYZ being used in the CIE XYZ/Lab conversion. */ +/* Note that this will returne the 'E' illuminant XYZ for emissive. */ +void xsp2cie_get_cie_il(xsp2cie *p, double *xyz) { + xspect sp; + + standardIlluminant(&sp, icxIT_E, 0.0); + p->convert(p, xyz, &sp); + if (p->doLab) + icmLab2XYZ(&icmD50, xyz, xyz); +} + void xsp2cie_del( xsp2cie *p ) { @@ -4684,7 +4830,7 @@ icxClamping clamp /* NZ to clamp XYZ/Lab to be +ve */ p->isemis = 1; break; case icxIT_custom: - p->illuminant = *custIllum; + p->illuminant = *custIllum; /* Struct copy */ break; case icxIT_A: p->illuminant = il_A; @@ -4701,9 +4847,14 @@ icxClamping clamp /* NZ to clamp XYZ/Lab to be +ve */ uv_filter(&il_D50M2, &il_D50); p->illuminant = il_D50M2; break; + case icxIT_D55: + daylight_il(&p->illuminant, 5500.0); + break; case icxIT_D65: p->illuminant = il_D65; break; + case icxIT_D75: + daylight_il(&p->illuminant, 7500.0); case icxIT_E: p->illuminant = il_none; break; @@ -4789,6 +4940,7 @@ icxClamping clamp /* NZ to clamp XYZ/Lab to be +ve */ p->convert = xsp2cie_convert; p->sconvert = xsp2cie_sconvert; + p->get_cie_il = xsp2cie_get_cie_il; #ifndef SALONEINSTLIB p->set_mw = xsp2cie_set_mw; /* Default no media white */ p->set_fwa = xsp2cie_set_fwa; /* Default no FWA compensation */ @@ -4848,7 +5000,8 @@ int icx_spectrum_locus(double xyz[3], double wl, icxObserverType obType) { } /* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */ -/* Pre-calculated spectral locuses of Daylight and Plankian at 5 Mired intervals */ +/* Pre-calculated spectral locuses of Daylight and Plankian at 5 Mired intervals, */ +/* created using illlocus.c */ /* These aren't actually spectrum, they are XYZ values */ /* indexed by temperature in Mired */ @@ -5256,7 +5409,6 @@ typedef struct { xspect *iloc; /* Locus to match to */ double xyz[3]; /* Target XYZ */ icmXYZNumber XYZ; /* Target as XYZ number for DE wp */ - xsp2cie *conv; /* Means of converting spectrum to XYZ */ int viscct; /* nz to use visual best match color temperature */ } cct2ctx; @@ -5264,7 +5416,6 @@ static double cct2_func(void *fdata, double tp[]) { cct2ctx *x = (cct2ctx *)fdata; double xyz[3]; /* Current value */ double lab1[3], lab2[3]; - xspect sp; double rv = 0.0; icmXYZNumber *wp = &x->XYZ; @@ -5289,6 +5440,13 @@ static double cct2_func(void *fdata, double tp[]) { rv = icmLabDEsq(lab1, lab2); } + /* Discourage going beyond ends of locus */ + if (tp[0] < x->iloc->spec_wl_short ) { + rv += 5000.0 * (x->iloc->spec_wl_short - tp[0]); + } else if (tp[0] > x->iloc->spec_wl_long) { + rv += 5000.0 * (tp[0] - x->iloc->spec_wl_long); + } + //a1logd(g_log, 1, " cct2_func returning %f for temp = %f\n",rv,1e6/tp[0]); //DBGF((DBGA,"returning %f for temp = %f\n",rv,tp[0])); return rv; @@ -5362,7 +5520,6 @@ int viscct /* nz to use visual CIEDE2000, 0 to use CCT CIE 1960 UCS. */ /* Locate the CCT in Mired */ if (powell(&rv, 1, cp, s, 0.01, 1000, cct2_func, (void *)&x, NULL, NULL) != 0) { - x.conv->del(x.conv); return -1.0; } @@ -5379,6 +5536,60 @@ int viscct /* nz to use visual CIEDE2000, 0 to use CCT CIE 1960 UCS. */ return 1e6/cp[0]; } +/* Given a choice of temperature dependent illuminant (icxIT_Dtemp or icxIT_Ptemp), */ +/* a color temperature and a Y value, return the corresponding XYZ */ +/* An observer type can be chosen for interpretting the spectrum of the input and */ +/* the illuminant. */ +/* Return xyz[0] = -1.0 on erorr */ +void icx_ill_ct2XYZ( +double xyz[3], /* Return the XYZ value */ +icxIllumeType ilType, /* Type of illuminant, icxIT_Dtemp or icxIT_Ptemp */ +icxObserverType obType, /* Observer, CIE_1931_2 or CIE_1964_10 */ +int viscct, /* nz to use visual CIEDE2000, 0 to use CCT CIE 1960 UCS. */ +double tin, /* Input temperature */ +double Yin /* Input Y value */ +) { + xspect *iloc; /* Locus to match to */ + + double cp[1], s[1]; + + if (ilType != icxIT_Dtemp && ilType != icxIT_Ptemp) { + xyz[0] = -1.0; + return; + } + if (obType != icxOT_CIE_1931_2 && obType != icxOT_CIE_1964_10) { + xyz[0] = -1.0; + return; + } + + /* Locus to use */ + if (obType == icxOT_CIE_1931_2) { + if (ilType == icxIT_Dtemp) { + iloc = illoc_Daylight_CIE_1931_2; + } else { + iloc = illoc_Plankian_CIE_1931_2; + } + } else { + if (ilType == icxIT_Dtemp) { + iloc = illoc_Daylight_CIE_1964_10; + } else { + iloc = illoc_Plankian_CIE_1964_10; + } + } + + /* Convert temperature to mired */ + tin = 1e6/tin; + + /* Get XYZ for given temp in Mired. */ + /* Will clip to limits of locus */ + getval_raw_xspec3_lin(iloc, xyz, tin); + + /* Scale by Yin */ + xyz[0] *= Yin/xyz[1]; + xyz[2] *= Yin/xyz[1]; + xyz[1] = Yin; +} + /* - - - - - - - - - - - - - - - - - - - - - - - - - */ /* Spectral and illuminant chromaticity locus support */ @@ -5792,7 +6003,7 @@ static xslpoly illo_P_CIE_1931_2_uv = { 2, icxOT_CIE_1931_2, 1, 0 }; static xslpoly illo_P_CIE_1964_10_xy = { 2, icxOT_CIE_1964_10, 0, 0 }; static xslpoly illo_P_CIE_1964_10_uv = { 2, icxOT_CIE_1964_10, 1, 0 }; -/* Return a pointer to the chromaticity locus poligon */ +/* Return a pointer to the (static) chromaticity locus poligon */ /* return NULL on failure. */ xslpoly *chrom_locus_poligon( icxLocusType loty, /* Locus type, 1 = spectral, 2 = Daylight, 3 = Plankian */ @@ -6060,8 +6271,8 @@ double *in /* Input XYZ values */ /* Given an XYZ value, return sRGB values. */ /* This is a little slow if wp used */ void icx_XYZ2sRGB( -double *out, /* Return approximate sRGB values */ -double *wp, /* Input XYZ white point (may be NULL) */ +double *out, /* Return sRGB values */ +double *wp, /* Input XYZ white point (D65 used if NULL) */ double *in /* Input XYZ values */ ) { int i, j; @@ -6109,6 +6320,50 @@ double *in /* Input XYZ values */ } } +/* Given an RGB value, return XYZ values. */ +/* This is a little slow */ +void icx_sRGB2XYZ( +double *out, /* Return XYZ values */ +double *wp, /* Output XYZ white point (D65 used if NULL, othewise Bradford) */ +double *in /* Input sRGB values */ +) { + int i, j; + double tmp[3]; + double d65[3] = { 0.950543, 1.0, 1.089303 }; /* D65 */ + double imat[3][3] = { /* sRGB absolute XYZ->RGB */ + { 0.4124, 0.3576, 0.1805 }, + { 0.2126, 0.7152, 0.0722 }, + { 0.0193, 0.1192, 0.9505 } + }; + + /* Undo gamma */ + for (j = 0; j < 3; j++) { + if (in[j] < 0.04045) + tmp[j] = in[j]/12.92; + else + tmp[j] = pow((in[j] + 0.055)/1.055, 2.4); + } + + /* Convert to XYZ cromaticities */ + for (i = 0; i < 3; i++) { + out[i] = 0.0; + for (j = 0; j < 3; j++) { + out[i] += tmp[j] * imat[i][j]; + } + } + + /* Do a simple Bradford between D65 and wp */ + if (wp != NULL) { + icmXYZNumber dst, src; + double vkmat[3][3]; + + icmAry2XYZ(src, d65); + icmAry2XYZ(dst, wp); + icmChromAdaptMatrix(ICM_CAM_BRADFORD, dst, src, vkmat); + icmMulBy3x3(out, vkmat, out); + } +} + /* Given an XYZ value, return approximate RGB value */ /* Desaurate to white by the given amount */ void icx_XYZ2RGB_ds( diff --git a/xicc/xspect.h b/xicc/xspect.h index e3adc1f..75c98f3 100644 --- a/xicc/xspect.h +++ b/xicc/xspect.h @@ -47,7 +47,7 @@ typedef struct { int spec_n; /* Number of spectral bands, 0 if not valid */ double spec_wl_short; /* First reading wavelength in nm (shortest) */ double spec_wl_long; /* Last reading wavelength in nm (longest) */ - double norm; /* Normalising scale value */ + double norm; /* Normalising scale value, ie. 1, 100 etc. */ double spec[XSPECT_MAX_BANDS]; /* Spectral value, shortest to longest */ } xspect; @@ -113,6 +113,9 @@ void xspect_denorm(xspect *sp); #ifndef SALONEINSTLIB /* Convert from one xspect type to another */ void xspect2xspect(xspect *dst, xspect *targ, xspect *src); + +/* Plot up to 3 spectra */ +void xspect_plot(xspect *sp1, xspect *sp2, xspect *sp3); #endif /* !SALONEINSTLIB*/ /* ------------------------------------------------------------------------------ */ @@ -129,16 +132,18 @@ typedef enum { icxIT_C = 4, /* Standard Illuminant C */ icxIT_D50 = 5, /* Daylight 5000K */ icxIT_D50M2 = 6, /* Daylight 5000K, UV filtered (M2) */ - icxIT_D65 = 7, /* Daylight 6500K */ - icxIT_E = 8, /* Equal Energy */ + icxIT_D55 = 7, /* Daylight 5500K (use specified temperature) */ + icxIT_D65 = 8, /* Daylight 6500K */ + icxIT_D75 = 9, /* Daylight 7500K (uses specified temperature) */ + icxIT_E = 10, /* Equal Energy = flat = 1.0 */ #ifndef SALONEINSTLIB - icxIT_F5 = 9, /* Fluorescent, Standard, 6350K, CRI 72 */ - icxIT_F8 = 10, /* Fluorescent, Broad Band 5000K, CRI 95 */ - icxIT_F10 = 11, /* Fluorescent Narrow Band 5000K, CRI 81 */ - icxIT_Spectrocam = 12, /* Spectrocam Xenon Lamp */ - icxIT_Dtemp = 13, /* Daylight at specified temperature */ + icxIT_F5 = 11, /* Fluorescent, Standard, 6350K, CRI 72 */ + icxIT_F8 = 12, /* Fluorescent, Broad Band 5000K, CRI 95 */ + icxIT_F10 = 13, /* Fluorescent Narrow Band 5000K, CRI 81 */ + icxIT_Spectrocam = 14, /* Spectrocam Xenon Lamp */ + icxIT_Dtemp = 15, /* Daylight at specified temperature */ #endif /* !SALONEINSTLIB*/ - icxIT_Ptemp = 14 /* Planckian at specified temperature */ + icxIT_Ptemp = 16 /* Planckian at specified temperature */ } icxIllumeType; /* Fill in an xpsect with a standard illuminant spectrum */ @@ -200,6 +205,7 @@ struct _xsp2cie { xspect emits; /* Estimated FWA emmission spectrum */ xspect media; /* Estimated base media (ie. minus FWA) */ xspect tillum; /* Y = 1 Normalised target/simulated instrument illuminant spectrum */ + /* Use oillum if tillum spec_n = 0 */ xspect oillum; /* Y = 1 Normalised observer illuminant spectrum */ double Sm; /* FWA Stimulation level for emits contribution */ double FWAc; /* FWA content (informational) */ @@ -230,14 +236,13 @@ struct _xsp2cie { xspect *in /* Spectrum to be converted, normalised by norm */ ); -#ifndef SALONEINSTLIB - /* Set Media White. This enables extracting and applying the */ - /* colorant reflectance value from/to the meadia. */ - /* return NZ if error */ - int (*set_mw) (struct _xsp2cie *p, /* this */ - xspect *white /* Spectrum of plain media */ - ); + /* Get the XYZ of the illuminant being used to compute the CIE XYZ */ + /* value. */ + void (*get_cie_il)(struct _xsp2cie *p, /* this */ + double *xyz /* Return the XYZ */ + ); +#ifndef SALONEINSTLIB /* Set Fluorescent Whitening Agent compensation */ /* return NZ if error */ int (*set_fwa) (struct _xsp2cie *p, /* this */ @@ -247,13 +252,14 @@ struct _xsp2cie { xspect *white /* Spectrum of plain media */ ); - /* Set FWA given updated conversion illuminant. */ + /* Set FWA given updated conversion illuminants. */ /* (We assume that xsp2cie_set_fwa has been called first) */ /* return NZ if error */ int (*update_fwa_custillum) (struct _xsp2cie *p, xspect *tillum, /* Spectrum of target/simulated instrument illuminant, */ /* NULL to use set_fwa() value. */ xspect *custIllum /* Spectrum of observer illuminant */ + /* NULL to use new_xsp2cie() value. */ ); /* Get Fluorescent Whitening Agent compensation information */ @@ -262,6 +268,14 @@ struct _xsp2cie { double *FWAc /* FWA content as a ratio. */ ); + + /* Set Media White. This enables extracting and applying the */ + /* colorant reflectance value from/to the meadia. */ + /* return NZ if error */ + int (*set_mw) (struct _xsp2cie *p, /* this */ + xspect *white /* Spectrum of plain media */ + ); + /* Extract the colorant reflectance value from the media. Takes FWA */ /* into account if set. Media white or FWA must be set. */ /* return NZ if error */ @@ -309,6 +323,20 @@ double xyz[3], /* Input XYZ value */ int viscct /* nz to use visual CIEDE2000, 0 to use CCT CIE 1960 UCS. */ ); +/* Given a choice of temperature dependent illuminant (icxIT_Dtemp or icxIT_Ptemp), */ +/* a color temperature and a Y value, return the corresponding XYZ */ +/* An observer type can be chosen for interpretting the spectrum of the input and */ +/* the illuminant. */ +/* Return xyz[0] = -1.0 on erorr */ +void icx_ill_ct2XYZ( +double xyz[3], /* Return the XYZ value */ +icxIllumeType ilType, /* Type of illuminant, icxIT_Dtemp or icxIT_Ptemp */ +icxObserverType obType, /* Observer, CIE_1931_2 or CIE_1964_10 */ +int viscct, /* nz to use visual CIEDE2000, 0 to use CCT CIE 1960 UCS. */ +double tin, /* Input temperature */ +double Yin /* Input Y value */ +); + /* --------------------------- */ /* Spectrum locus */ @@ -334,7 +362,7 @@ typedef enum { icxLT_plankian = 3 } icxLocusType; -/* Return a pointer to the chromaticity locus object */ +/* Return a pointer to the (static) chromaticity locus object */ /* return NULL on failure. */ xslpoly *chrom_locus_poligon(icxLocusType locus_type, icxObserverType obType, int cspace); @@ -371,10 +399,18 @@ double *in /* Input XYZ values */ /* return sRGB values */ void icx_XYZ2sRGB( double *out, /* Return sRGB value */ -double *wp, /* Input XYZ white point (may be NULL) */ +double *wp, /* Input XYZ white point (D65 used if NULL) */ double *in /* Input XYZ values */ ); +/* Given an RGB value, return XYZ values. */ +/* This is a little slow */ +void icx_sRGB2XYZ( +double *out, /* Return XYZ values */ +double *wp, /* Output XYZ white point (D65 used if NULL) */ +double *in /* Input sRGB values */ +); + /* Given an XYZ value, return approximate RGB value */ /* Desaurate to white by the given amount */ void icx_XYZ2RGB_ds( diff --git a/xml/ANNOUNCEMENT b/xml/ANNOUNCEMENT new file mode 100644 index 0000000..64cfd0d --- /dev/null +++ b/xml/ANNOUNCEMENT @@ -0,0 +1,14 @@ +Mini-XML 2.7 is now available for download from: + + http://www.minixml.org/software.php + +Mini-XML 2.7 fixes some minor platform and XML issues. Changes include: + +- Updated the source headers to reference the Mini-XML license and its + exceptions to the LGPL2 (STR #108) +- The shared library did not include a destructor for the thread- + specific data key on UNIX-based operating systems (STR #103) +- mxmlLoad* did not error out on XML with multiple root nodes (STR #101) +- Fixed an issue with the _mxml_vstrdupf function (STR #107) +- mxmlSave* no longer write all siblings of the passed node, just that + node and its children (STR #109) diff --git a/xml/CHANGES b/xml/CHANGES new file mode 100644 index 0000000..37a9614 --- /dev/null +++ b/xml/CHANGES @@ -0,0 +1,349 @@ +CHANGES - 2011-12-20 +-------------------- + +ArgyllCMS Changes: + - Added mxmlFindPathNode() variant of mxmlFindPath() that doesn't + return the child node. + +CHANGES IN Mini-XML 2.7 + + - Added 64-bit configurations to the VC++ project files (STR #129) + - Fixed conformance of mxmldoc's HTML and CSS output. + - Added data accessor ("get") functions and made the mxml_node_t and + mxml_index_t structures private but still available in the Mini-XML + header to preserve source compatibility (STR #118) + - Updated the source headers to reference the Mini-XML license and its + exceptions to the LGPL2 (STR #108) + - Fixed a memory leak when loading a badly-formed XML file (STR #121) + - Added a new mxmlFindPath() function to find the value node of a + named element (STR #110) + - Building a static version of the library did not work on Windows + (STR #112) + - The shared library did not include a destructor for the thread- + specific data key on UNIX-based operating systems (STR #103) + - mxmlLoad* did not error out on XML with multiple root nodes (STR #101) + - Fixed an issue with the _mxml_vstrdupf function (STR #107) + - mxmlSave* no longer write all siblings of the passed node, just that + node and its children (STR #109) + + +CHANGES IN Mini-XML 2.6 + + - Documentation fixes (STR #91, STR #92) + - The mxmldoc program did not handle typedef comments properly (STR #72) + - Added support for "long long" printf formats. + - The XML parser now ignores BOMs in UTF-8 XML files (STR #89) + - The mxmldoc program now supports generating Xcode documentation sets. + - mxmlSave*() did not output UTF-8 correctly on some platforms. + - mxmlNewXML() now adds encoding="utf-8" in the ?xml directive to avoid + problems with non-conformant XML parsers that assume something other + than UTF-8 as the default encoding. + - Wrapping was not disabled when mxmlSetWrapMargin(0) was called, and + "" was always followed by a newline (STR #76) + - The mxml.pc.in file was broken (STR #79) + - The mxmldoc program now handles "typedef enum name {} name" correctly + (STR #72) + + +CHANGES IN Mini-XML 2.5 + + - The mxmldoc program now makes greater use of CSS and + supports a --css option to embed an alternate stylesheet. + - The mxmldoc program now supports --header and --footer + options to insert documentation content before and + after the generated content. + - The mxmldoc program now supports a --framed option to + generate framed HTML output. + - The mxmldoc program now creates a table of contents + including any headings in the --intro file when + generating HTML output. + - The man pages and man page output from mxmldoc did + not use "\-" for dashes (STR #68) + - The debug version of the Mini-XML DLL could not be + built (STR #65) + - Processing instructions and directives did not work + when not at the top level of a document (STR #67) + - Spaces around the "=" in attributes were not supported + (STR #67) + + +CHANGES IN Mini-XML 2.4 + + - Fixed shared library build problems on HP-UX and Mac OS X. + - The mxmldoc program did not output argument descriptions + for functions properly. + - All global settings (custom, error, and entity callbacks + and the wrap margin) are now managed separately for each + thread. + - Added mxmlElementDeleteAttr() function (STR #59) + - mxmlElementSetAttrf() did not work (STR #57) + - mxmlLoad*() incorrectly treated declarations as parent + elements (STR #56) + - mxmlLoad*() incorrectly allowed attributes without values + (STR #47) + - Fixed Visual C++ build problems (STR #49) + - mxmlLoad*() did not return NULL when an element contained + an error (STR #46) + - Added support for the apos character entity (STR #54) + - Fixed whitespace detection with Unicode characters (STR + #48) + - mxmlWalkNext() and mxmlWalkPrev() did not work correctly + when called with a node with no children as the top node + (STR #53) + + +CHANGES IN Mini-XML 2.3 + + - Added two exceptions to the LGPL to support static + linking of applications against Mini-XML + - The mxmldoc utility can now generate man pages, too. + - Added a mxmlNewXML() function + - Added a mxmlElementSetAttrf() function (STR #43) + - Added snprintf() emulation function for test program (STR + #32) + - Added the _CRT_SECURE_NO_DEPRECATE definition when + building on VC++ 2005 (STR #36) + - mxmlLoad*() did not detect missing > characters in + elements (STR #41) + - mxmlLoad*() did not detect missing close tags at the end + of an XML document (STR #45) + - Added user_data and ref_count members to mxml_node_t + structure + - Added mxmlReleaseNode() and mxmlRetainNode() APIs for + reference-counted nodes + - Added mxmlSetWrapMargin() to control the wrapping of XML + output + - Added conditional check for EINTR error code for + certain Windows compilers that do not define it (STR + #33) + - The mxmldoc program now generates correct HTML 4.0 + output - previously it generated invalid XHTML + - The mxmldoc program now supports "@deprecated@, + "@private@", and "@since version@" comments + - Fixed function and enumeration type bugs in mxmldoc. + - Fixed the XML schema for mxmldoc + - The mxmldoc program now supports --intro, --section, + and --title options + - The mxmlLoad*() functions could leak a node on an error + (STR #27) + - The mxml_vsnprintf() function could get in an infinite + loop on a buffer overflow (STR #25) + - Added new mxmlNewCDATA() and mxmlSetCDATA() functions + to create and set CDATA nodes, which are really just + special element nodes + - Added new MXML_IGNORE type and MXML_IGNORE_CB callback + to ignore non-element nodes, e.g. whitespace + - mxmlLoad*() crashed when reporting an error in some + invalid XML (STR #23) + + +CHANGES IN Mini-XML 2.2.2 + + - mxmlLoad*() did not treat custom data as opaque, so + whitespace characters would be lost. + + +CHANGES IN Mini-XML 2.2.1 + + - mxmlLoadFd(), mxmlLoadFile(), and mxmlLoadString() now + correctly return NULL on error (STR #21) + - mxmlNewInteger(), mxmlNewOpaque(), mxmlNewReal(), + mxmlNewText(), and mxmlNewTextf() incorrectly required + a parent node (STR #22) + - Fixed an XML output bug in mxmldoc. + - The "make install" target now uses the install command + to set the proper permissions on UNIX/Linux/OSX. + - Fixed a MingW/Cygwin compilation problem (STR #18) + + +CHANGES IN Mini-XML 2.2 + + - Added shared library support (STR #17) + - mxmlLoad*() now returns an error when an XML stream + contains illegal control characters (STR #10) + - mxmlLoad*() now returns an error when an element + contains two attributes with the same name in + conformance with the XML spec (STR #16) + - Added support for CDATA (STR #14, STR #15) + - Updated comment and processing instruction handling - + no entity support per XML specification. + - Added checking for invalid comment termination ("--->" + is not allowed) + + +CHANGES IN Mini-XML 2.1 + + - Added support for custom data nodes (STR #6) + - Now treat UTF-8 sequences which are longer than + necessary as an error (STR #4) + - Fixed entity number support (STR #8) + - Fixed mxmlLoadString() bug with UTF-8 (STR #7) + - Fixed entity lookup bug (STR #5) + - Added mxmlLoadFd() and mxmlSaveFd() functions. + - Fixed multi-word UTF-16 handling. + + +CHANGES IN Mini-XML 2.0 + + - New programmers manual. + - Added Visual C++ project files for Microsoft Windows + users. + - Added optimizations to mxmldoc, mxmlSaveFile(), and + mxmlIndexNew() (STR #2) + - mxmlEntityAddCallback() now returns an integer status + (STR #2) + - Added UTF-16 support (input only; all output is UTF-8) + - Added index functions to build a searchable index of + XML nodes. + - Added character entity callback interface to support + additional character entities beyond those defined in + the XHTML specification. + - Added support for XHTML character entities. + - The mxmldoc utility now produces XML output which + conforms to an updated XML schema, described in the file + "doc/mxmldoc.xsd". + - Changed the whitespace callback interface to return + strings instead of a single character, allowing for + greater control over the formatting of XML files + written using Mini-XML. THIS CHANGE WILL REQUIRE + CHANGES TO YOUR 1.x CODE IF YOU USE WHITESPACE + CALLBACKS. + - The mxmldoc utility is now capable of documenting C++ + classes, functions, and structures, and correctly + handles C++ comments. + - Added new modular tests for mxmldoc. + - Updated the mxmldoc output to be more compatible with + embedding in manuals produced with HTMLDOC. + - The makefile incorrectly included a "/" separator + between the destination path and install path. This + caused problems when building and installing with + MingW. + + +CHANGES IN Mini-XML 1.3 + + - Fixes for mxmldoc. + - Added support for reading standard HTML entity names. + - mxmlLoadString/File() did not decode character + entities in element names, attribute names, or + attribute values. + - mxmlLoadString/File() would crash when loading non- + conformant XML data under an existing parent (top) + node. + - Fixed several bugs in the mxmldoc utility. + - Added new error callback function to catch a variety + of errors and log them to someplace other than stderr. + - The mxmlElementSetAttr() function now allows for NULL + attribute values. + - The load and save functions now properly handle quoted + element and attribute name strings properly, e.g. for + !DOCTYPE declarations. + + +CHANGES IN Mini-XML 1.2 + + - Added new "set" methods to set the value of a node. + - Added new formatted text methods mxmlNewTextf() and + mxmlSetTextf() to create/set a text node value using + printf-style formats. + - Added new standard callbacks for use with the mxmlLoad + functions. + - Updated the HTML documentation to include examples of + the walk and load function output. + - Added --with/without-ansi configure option to control + the strdup() function check. + - Added --with/without-snprintf configure option to + control the snprintf() and vsnprintf() function + checks. + + +CHANGES IN Mini-XML 1.1.2 + + - The mxml(3) man page wasn't updated for the string + functions. + - mxmlSaveString() returned the wrong number of + characters. + - mxml_add_char() updated the buffer pointer in the + wrong place. + + +CHANGES IN Mini-XML 1.1.1 + + - The private mxml_add_ch() function did not update the + start-of-buffer pointer which could cause a crash when + using mxmlSaveString(). + - The private mxml_write_ws() function called putc() + instead of using the proper callback which could cause + a crash when using mxmlSaveString(). + - Added a mxmlSaveAllocString() convenience function for + saving an XML node tree to an allocated string. + + +CHANGES IN Mini-XML 1.1 + + - The mxmlLoadFile() function now uses dynamically + allocated string buffers for element names, attribute + names, and attribute values. Previously they were + capped at 16383, 255, and 255 bytes, respectively. + - Added a new mxmlLoadString() function for loading an + XML node tree from a string. + - Added a new mxmlSaveString() function for saving an + XML node tree to a string. + - Add emulation of strdup() if the local platform does + not provide the function. + + +CHANGES IN Mini-XML 1.0 + + - The mxmldoc program now handles function arguments, + structures, unions, enumerations, classes, and + typedefs properly. + - Documentation provided via mxmldoc and more in-line + comments in the code. + - Added man pages and packaging files. + + +CHANGES IN Mini-XML 0.93 + + - New mxmldoc example program that is also used to + create and update code documentation using XML and + produce HTML reference pages. + - Added mxmlAdd() and mxmlRemove() functions to add and + remove nodes from a tree. This provides more + flexibility over where the nodes are inserted and + allows nodes to be moved within the tree as needed. + - mxmlLoadFile() now correctly handles comments. + - mxmlLoadFile() now supports the required "gt", "quot", + and "nbsp" character entities. + - mxmlSaveFile() now uses newlines as whitespace + when valid to do so. + - mxmlFindElement() now also takes attribute name and + attribute value string arguments to limit the search + to specific elements with attributes and/or values. + NULL pointers can be used as "wildcards". + - Added uninstall target to makefile, and auto-reconfig + if Makefile.in or configure.in are changed. + - mxmlFindElement(), mxmlWalkNext(), and mxmlWalkPrev() + now all provide "descend" arguments to control whether + they descend into child nodes in the tree. + - Fixed some whitespace issues in mxmlLoadFile(). + - Fixed Unicode output and whitespace issues in + mxmlSaveFile(). + - mxmlSaveFile() now supports a whitespace callback to + provide more human-readable XML output under program + control. + + +CHANGES IN Mini-XML 0.92 + + - mxmlSaveFile() didn't return a value on success. + + +CHANGES IN Mini-XML 0.91 + + - mxmlWalkNext() would go into an infinite loop. + + +CHANGES IN Mini-XML 0.9 + + - Initial public release. diff --git a/xml/COPYING b/xml/COPYING new file mode 100644 index 0000000..4d0aa78 --- /dev/null +++ b/xml/COPYING @@ -0,0 +1,507 @@ + Mini-XML License + September 18, 2010 + + +The Mini-XML library and included programs are provided under the +terms of the GNU Library General Public License version 2 (LGPL2) +with the following exceptions: + + 1. Static linking of applications to the Mini-XML library +does not constitute a derivative work and does not require +the author to provide source code for the application, use +the shared Mini-XML libraries, or link their applications +against a user-supplied version of Mini-XML. + +If you link the application to a modified version of +Mini-XML, then the changes to Mini-XML must be provided +under the terms of the LGPL2 in sections 1, 2, and 4. + + 2. 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Here is a sample; alter the names: + + Yoyodyne, Inc., hereby disclaims all copyright interest in the + library `Frob' (a library for tweaking knobs) written by James Random Hacker. + + , 1 April 1990 + Ty Coon, President of Vice + +That's all there is to it! diff --git a/xml/Jamfile b/xml/Jamfile new file mode 100644 index 0000000..c931c12 --- /dev/null +++ b/xml/Jamfile @@ -0,0 +1,28 @@ +# JAM style makefile for miniXML + +#PREF_CCFLAGS = $(CCOPTFLAG) ; # Turn optimisation on +PREF_CCFLAGS = $(CCDEBUGFLAG) ; # Debugging flags +#PREF_CCFLAGS = $(CCHEAPDEBUG) ; # Heap Debugging flags +PREF_LINKFLAGS = $(LINKDEBUGFLAG) ; # Link debugging flags + +#Products +Libraries = libmxml ; +Executables = ; +Headers = mxml.h ; + +#Install +#InstallBin $(DESTDIR)$(PREFIX)/bin : $(Executables) ; +#InstallFile $(DESTDIR)$(PREFIX)/h : $(Headers) ; +#InstallLib $(DESTDIR)$(PREFIX)/lib : $(Libraries) ; + +if $(NT) { + DEFINES += WIN32 ; +} + +# mXML library +Library libmxml : mxml-attr.c mxml-entity.c mxml-file.c mxml-get.c mxml-index.c + mxml-node.c mxml-private.c mxml-search.c mxml-set.c mxml-string.c ; + +LINKLIBS = libmxml ; + +MainsFromSources testmxml.c ; diff --git a/xml/Makefile.in b/xml/Makefile.in new file mode 100644 index 0000000..cc5c34d --- /dev/null +++ b/xml/Makefile.in @@ -0,0 +1,434 @@ +# +# "$Id: Makefile.in 439 2011-04-13 15:43:32Z mike $" +# +# Makefile for Mini-XML, a small XML-like file parsing library. +# +# Copyright 2003-2011 by Michael R Sweet. +# +# These coded instructions, statements, and computer programs are the +# property of Michael R Sweet and are protected by Federal copyright +# law. Distribution and use rights are outlined in the file "COPYING" +# which should have been included with this file. If this file is +# missing or damaged, see the license at: +# +# http://www.minixml.org/ +# + +# +# Compiler tools definitions... +# + +AR = @AR@ +ARFLAGS = @ARFLAGS@ +ARCHFLAGS = @ARCHFLAGS@ +CC = @CC@ +CFLAGS = $(OPTIM) $(ARCHFLAGS) @CFLAGS@ @CPPFLAGS@ @PTHREAD_FLAGS@ +CP = @CP@ +DSO = @DSO@ +DSOFLAGS = @DSOFLAGS@ +LDFLAGS = $(OPTIM) $(ARCHFLAGS) @LDFLAGS@ +INSTALL = @INSTALL@ +LIBMXML = @LIBMXML@ +LIBS = @LIBS@ @PTHREAD_LIBS@ +LN = @LN@ -s +MKDIR = @MKDIR@ +OPTIM = @OPTIM@ +RANLIB = @RANLIB@ +RM = @RM@ -f +SHELL = /bin/sh + + +# +# Configured directories... +# + +prefix = @prefix@ +exec_prefix = @exec_prefix@ +bindir = @bindir@ +datarootdir = @datarootdir@ +includedir = @includedir@ +libdir = @libdir@ +mandir = @mandir@ +docdir = @docdir@ +BUILDROOT = $(DSTROOT) + + +# +# Install commands... +# + +INSTALL_BIN = $(LIBTOOL) $(INSTALL) -m 755 -s +INSTALL_DATA = $(INSTALL) -m 644 +INSTALL_DIR = $(INSTALL) -d +INSTALL_LIB = $(LIBTOOL) $(INSTALL) -m 755 +INSTALL_MAN = $(INSTALL) -m 644 +INSTALL_SCRIPT = $(INSTALL) -m 755 + + +# +# Rules... +# + +.SILENT: +.SUFFIXES: .c .man .o +.c.o: + echo Compiling $< + $(CC) $(CFLAGS) -c -o $@ $< + + +# +# Targets... +# + +DOCFILES = doc/0.gif doc/1.gif doc/2.gif doc/3.gif doc/4.gif \ + doc/A.gif doc/B.gif doc/C.gif doc/D.gif \ + doc/mxml.html doc/mxmldoc.xsd \ + README COPYING CHANGES +PUBLIBOBJS = mxml-attr.o mxml-entity.o mxml-file.o mxml-get.o \ + mxml-index.o mxml-node.o mxml-search.o mxml-set.o +LIBOBJS = $(PUBLIBOBJS) mxml-private.o mxml-string.o +OBJS = mxmldoc.o testmxml.o $(LIBOBJS) +TARGETS = $(LIBMXML) mxmldoc testmxml mxml.xml doc/mxml.man + + +# +# Make everything... +# + +all: Makefile config.h $(TARGETS) + + +# +# Clean everything... +# + +clean: + echo Cleaning build files... + $(RM) $(OBJS) $(TARGETS) + $(RM) mxmldoc-static libmxml.a libmxml.so.1.5 libmxml.sl.1 libmxml.1.dylib + + +# +# Really clean everything... +# + +distclean: clean + echo Cleaning distribution files... + $(RM) config.cache config.log config.status + $(RM) Makefile config.h + $(RM) -r autom4te*.cache + $(RM) *.bck *.bak + $(RM) -r clang + + +# +# Run the clang.llvm.org static code analysis tool on the C sources. +# + +.PHONY: clang clang-changes +clang: + echo Doing static code analysis of all code using CLANG... + $(RM) -r clang + scan-build -V -k -o `pwd`/clang $(MAKE) $(MFLAGS) clean all +clang-changes: + echo Doing static code analysis of changed code using CLANG... + scan-build -V -k -o `pwd`/clang $(MAKE) $(MFLAGS) all + + +# +# Install everything... +# + +install: $(TARGETS) install-$(LIBMXML) install-libmxml.a + echo Installing mxmldoc in $(BUILDROOT)$(bindir)... + $(INSTALL_DIR) $(BUILDROOT)$(bindir) + $(INSTALL_BIN) mxmldoc $(BUILDROOT)$(bindir) + echo Installing documentation in $(BUILDROOT)$(docdir)... + $(INSTALL_DIR) $(BUILDROOT)$(docdir) + for file in $(DOCFILES); do \ + $(INSTALL_MAN) $$file $(BUILDROOT)$(docdir); \ + done + echo Installing header files in $(BUILDROOT)$(includedir)... + $(INSTALL_DIR) $(BUILDROOT)$(includedir) + $(INSTALL_DATA) mxml.h $(BUILDROOT)$(includedir) + echo Installing pkgconfig files in $(BUILDROOT)$(libdir)/pkgconfig... + $(INSTALL_DIR) $(BUILDROOT)$(libdir)/pkgconfig + $(INSTALL_DATA) mxml.pc $(BUILDROOT)$(libdir)/pkgconfig + echo Installing man pages in $(BUILDROOT)$(mandir)... + $(INSTALL_DIR) $(BUILDROOT)$(mandir)/man1 + $(INSTALL_MAN) doc/mxmldoc.man $(BUILDROOT)$(mandir)/man1/mxmldoc.1 + $(INSTALL_DIR) $(BUILDROOT)$(mandir)/man3 + $(INSTALL_MAN) doc/mxml.man $(BUILDROOT)$(mandir)/man3/mxml.3 + +install-libmxml.a: + echo Installing libmxml.a to $(BUILDROOT)$(libdir)... + $(INSTALL_DIR) $(BUILDROOT)$(libdir) + $(INSTALL_LIB) libmxml.a $(BUILDROOT)$(libdir) + $(RANLIB) $(BUILDROOT)$(libdir)/libmxml.a + +install-libmxml.so.1.5: + echo Installing libmxml.so to $(BUILDROOT)$(libdir)... + $(INSTALL_DIR) $(BUILDROOT)$(libdir) + $(INSTALL_LIB) libmxml.so.1.5 $(BUILDROOT)$(libdir) + $(RM) $(BUILDROOT)$(libdir)/libmxml.so + $(LN) libmxml.so.1.5 $(BUILDROOT)$(libdir)/libmxml.so + $(RM) $(BUILDROOT)$(libdir)/libmxml.so.1 + $(LN) libmxml.so.1.5 $(BUILDROOT)$(libdir)/libmxml.so.1 + +install-libmxml.sl.1: + echo Installing libmxml.sl to $(BUILDROOT)$(libdir)... + $(INSTALL_DIR) $(BUILDROOT)$(libdir) + $(INSTALL_LIB) libmxml.sl.1 $(BUILDROOT)$(libdir) + $(RM) $(BUILDROOT)$(libdir)/libmxml.so + $(LN) libmxml.sl.1 $(BUILDROOT)$(libdir)/libmxml.sl + +install-libmxml.1.dylib: + echo Installing libmxml.dylib to $(BUILDROOT)$(libdir)... + $(INSTALL_DIR) $(BUILDROOT)$(libdir) + $(INSTALL_LIB) libmxml.1.dylib $(BUILDROOT)$(libdir) + $(RM) $(BUILDROOT)$(libdir)/libmxml.dylib + $(LN) libmxml.1.dylib $(BUILDROOT)$(libdir)/libmxml.dylib + + +# +# Uninstall everything... +# + +uninstall: uninstall-$(LIBMXML) uninstall-libmxml.a + echo Uninstalling mxmldoc from $(BUILDROOT)$(bindir)... + $(RM) $(BUILDROOT)$(bindir)/mxmldoc + echo Uninstalling documentation from $(BUILDROOT)$(docdir)... + $(RM) -r $(BUILDROOT)$(docdir) + echo Uninstalling headers from $(BUILDROOT)$(includedir)... + $(RM) $(BUILDROOT)$(includedir)/mxml.h + echo Uninstalling pkgconfig files from $(BUILDROOT)$(libdir)/pkgconfig... + $(RM) $(BUILDROOT)$(libdir)/pkgconfig/mxml.pc + echo Uninstalling man pages from $(BUILDROOT)$(mandir)... + $(RM) $(BUILDROOT)$(mandir)/man1/mxmldoc.1 + $(RM) $(BUILDROOT)$(mandir)/man3/mxml.3 + +uninstall-libmxml.a: + echo Uninstalling libmxml.a from $(BUILDROOT)$(libdir)... + $(RM) $(BUILDROOT)$(libdir)/libmxml.a + +uninstall-libmxml.so.1.5: + echo Uninstalling libmxml.so from $(BUILDROOT)$(libdir)... + $(RM) $(BUILDROOT)$(libdir)/libmxml.so + $(RM) $(BUILDROOT)$(libdir)/libmxml.so.1 + $(RM) $(BUILDROOT)$(libdir)/libmxml.so.1.4 + +uninstall-libmxml.sl.1: + echo Uninstalling libmxml.sl from $(BUILDROOT)$(libdir)... + $(RM) $(BUILDROOT)$(libdir)/libmxml.sl + $(RM) $(BUILDROOT)$(libdir)/libmxml.sl.1 + +uninstall-libmxml.1.dylib: + echo Uninstalling libmxml.dylib from $(BUILDROOT)$(libdir)... + $(RM) $(BUILDROOT)$(libdir)/libmxml.dylib + $(RM) $(BUILDROOT)$(libdir)/libmxml.1.dylib + + +# +# Make packages using EPM (http://www.epmhome.org/) +# + +epm: all + echo Creating distribution packages... + epm --output-dir dist -v -f native mxml + epm --output-dir dist -v -f portable mxml + + +# +# autoconf stuff... +# + +Makefile: configure Makefile.in + echo Updating makefile... + if test -f config.status; then \ + ./config.status --recheck; \ + ./config.status; \ + else \ + ./configure; \ + fi + touch config.h + + +config.h: configure config.h.in + echo Updating config.h... + autoconf + if test -f config.status; then \ + ./config.status --recheck; \ + ./config.status; \ + else \ + ./configure; \ + fi + touch config.h + + +# +# Figure out lines-of-code... +# + +.PHONY: sloc + +sloc: + echo "libmxml: \c" + sloccount $(LIBOBJS:.o=.c) mxml-private.c mxml.h 2>/dev/null | \ + grep "Total Physical" | awk '{print $$9}' + + +# +# libmxml.a +# + +libmxml.a: $(LIBOBJS) + echo Creating $@... + $(RM) $@ + $(AR) $(ARFLAGS) $@ $(LIBOBJS) + $(RANLIB) $@ + +$(LIBOBJS): mxml.h +mxml-entity.o mxml-file.o mxml-private.o: mxml-private.h + + +# +# libmxml.so.1.5 +# + +libmxml.so.1.5: $(LIBOBJS) + echo Creating $@... + $(DSO) $(DSOFLAGS) -o libmxml.so.1.5 $(LIBOBJS) + $(RM) libmxml.so libmxml.so.1 + $(LN) libmxml.so.1.5 libmxml.so + $(LN) libmxml.so.1.5 libmxml.so.1 + + +# +# libmxml.sl.1 +# + +libmxml.sl.1: $(LIBOBJS) + echo Creating $@... + $(DSO) $(DSOFLAGS) -o libmxml.sl.1 $(LIBOBJS) + $(RM) libmxml.sl + $(LN) libmxml.sl.1 libmxml.sl + + +# +# libmxml.1.dylib +# + +libmxml.1.dylib: $(LIBOBJS) + echo Creating $@... + $(DSO) $(DSOFLAGS) -o libmxml.1.dylib \ + -install_name $(libdir)/libmxml.dylib \ + -current_version 1.5.0 \ + -compatibility_version 1.0.0 \ + $(LIBOBJS) + $(RM) libmxml.dylib + $(LN) libmxml.1.dylib libmxml.dylib + + +# +# mxmldoc +# + +mxmldoc: $(LIBMXML) mxmldoc.o + echo Linking $@... + $(CC) -L. $(LDFLAGS) -o $@ mxmldoc.o -lmxml $(LIBS) + +mxmldoc-static: libmxml.a mxmldoc.o + echo Linking $@... + $(CC) $(LDFLAGS) -o $@ mxmldoc.o libmxml.a $(LIBS) + +mxmldoc.o: mxml.h + + +# +# testmxml +# + +testmxml: libmxml.a testmxml.o + echo Linking $@... + $(CC) $(LDFLAGS) -o $@ testmxml.o libmxml.a $(LIBS) + @echo Testing library... + ./testmxml test.xml >temp1.xml 2>temp1s.xml + ./testmxml temp1.xml >temp2.xml 2>temp2s.xml + @if cmp temp1.xml temp2.xml; then \ + echo Stdio file test passed!; \ + $(RM) temp2.xml temp2s.xml; \ + else \ + echo Stdio file test failed!; \ + fi + @if cmp temp1.xml temp1s.xml; then \ + echo String test passed!; \ + $(RM) temp1.xml temp1s.xml; \ + else \ + echo String test failed!; \ + fi + @if cmp test.xml test.xmlfd; then \ + echo File descriptor test passed!; \ + $(RM) test.xmlfd; \ + else \ + echo File descriptor test failed!; \ + fi + +testmxml-vg: $(LIBOBJS) testmxml.o + echo Linking $@... + $(CC) $(LDFLAGS) -o $@ testmxml.o $(LIBOBJS) $(LIBS) + +testmxml.o: mxml.h + + +# +# mxml.xml +# + +mxml.xml: mxmldoc-static mxml.h $(PUBLIBOBJS:.o=.c) + echo Generating API documentation... + $(RM) mxml.xml + ./mxmldoc-static --header doc/reference.heading mxml.xml mxml.h $(PUBLIBOBJS:.o=.c) >doc/reference.html + if test "x`uname`" = xDarwin; then \ + ./mxmldoc-static --docset org.minixml.docset \ + --docversion @VERSION@ --feedname minixml.org \ + --feedurl http://www.minixml.org/org.minixml.atom \ + --header doc/docset.header --intro doc/docset.intro \ + --css doc/docset.css --title "Mini-XML API Reference" \ + mxml.xml || exit 1; \ + $(RM) org.minixml.atom; \ + /Developer/usr/bin/docsetutil package --output org.minixml.xar \ + --atom org.minixml.atom \ + --download-url http://www.minixml.org/org.minixml.xar \ + org.minixml.docset || exit 1; \ + fi + +valgrind: mxmldoc-static + echo Doing dynamic code analysis using Valgrind... + $(RM) valgrind.xml + valgrind --tool=memcheck --leak-check=yes ./mxmldoc-static \ + valgrind.xml mxml.h $(PUBLIBOBJS:.o=.c) \ + >valgrind.html 2>valgrind.out + + +# +# doc/mxml.man +# + +doc/mxml.man: mxmldoc-static mxml.xml + echo "Generating mxml(3) man page..." + $(RM) doc/mxml.man + ./mxmldoc-static --man mxml --title "Mini-XML API" \ + --intro doc/intro.man --footer doc/footer.man \ + mxml.xml >doc/mxml.man + + +# +# All object files depend on the makefile... +# + +$(OBJS): Makefile config.h + + +# +# End of "$Id: Makefile.in 439 2011-04-13 15:43:32Z mike $". +# diff --git a/xml/README b/xml/README new file mode 100644 index 0000000..506554d --- /dev/null +++ b/xml/README @@ -0,0 +1,196 @@ +README - 2011-12-20 +------------------- + + +INTRODUCTION + + This README file describes the Mini-XML library version 2.7. + + Mini-XML is a small XML parsing library that you can use to read XML and + XML-like data files in your application without requiring large non-standard + libraries. Mini-XML only requires an ANSI C compatible compiler (GCC works, + as do most vendors' ANSI C compilers) and a "make" program. + + Mini-XML provides the following functionality: + + - Reading of UTF-8 and UTF-16 and writing of UTF-8 encoded XML files and + strings. + - Data is stored in a linked-list tree structure, preserving the XML + data hierarchy. + - Supports arbitrary element names, attributes, and attribute values + with no preset limits, just available memory. + - Supports integer, real, opaque ("cdata"), and text data types in + "leaf" nodes. + - Functions for creating and managing trees of data. + - "Find" and "walk" functions for easily locating and navigating trees + of data. + + Mini-XML doesn't do validation or other types of processing on the data + based upon schema files or other sources of definition information. + + +BUILDING Mini-XML + + Mini-XML comes with an autoconf-based configure script; just type the + following command to get things going: + + ./configure + + The default install prefix is /usr/local, which can be overridden using the + --prefix option: + + ./configure --prefix=/foo + + Other configure options can be found using the --help option: + + ./configure --help + + Once you have configured the software, type "make" to do the build and run + the test program to verify that things are working, as follows: + + make + + If you are using Mini-XML under Microsoft Windows with Visual C++ 2008, use + the included project files in the "vcnet" subdirectory to build the library + instead. + + +INSTALLING Mini-XML + + The "install" target will install Mini-XML in the lib and include + directories: + + make install + + Once you have installed it, use the "-lmxml" option to link your application + against it. + + +DOCUMENTATION + + The documentation is available in the "doc" subdirectory in the files + "mxml.html" (HTML) and "mxml.pdf" (PDF). You can also look at the + "testmxml.c" and "mxmldoc.c" source files for examples of using Mini-XML. + + Mini-XML provides a single header file which you include: + + #include + + Nodes are defined by the "mxml_node_t" structure; the "type" member defines + the node type (element, integer, opaque, real, or text) which determines + which value you want to look at in the "value" union. New nodes can be + created using the "mxmlNewElement()", "mxmlNewInteger()", "mxmlNewOpaque()", + "mxmlNewReal()", and "mxmlNewText()" functions. Only elements can have + child nodes, and the top node must be an element, usually "?xml". + + You load an XML file using the "mxmlLoadFile()" function: + + FILE *fp; + mxml_node_t *tree; + + fp = fopen("filename.xml", "r"); + tree = mxmlLoadFile(NULL, fp, MXML_NO_CALLBACK); + fclose(fp); + + Similarly, you save an XML file using the "mxmlSaveFile()" function: + + FILE *fp; + mxml_node_t *tree; + + fp = fopen("filename.xml", "w"); + mxmlSaveFile(tree, fp, MXML_NO_CALLBACK); + fclose(fp); + + The "mxmlLoadString()", "mxmlSaveAllocString()", and "mxmlSaveString()" + functions load XML node trees from and save XML node trees to strings: + + char buffer[8192]; + char *ptr; + mxml_node_t *tree; + + ... + tree = mxmlLoadString(NULL, buffer, MXML_NO_CALLBACK); + + ... + mxmlSaveString(tree, buffer, sizeof(buffer), MXML_NO_CALLBACK); + + ... + ptr = mxmlSaveAllocString(tree, MXML_NO_CALLBACK); + + You can find a named element/node using the "mxmlFindElement()" function: + + mxml_node_t *node = mxmlFindElement(tree, tree, "name", "attr", + "value", MXML_DESCEND); + + The "name", "attr", and "value" arguments can be passed as NULL to act as + wildcards, e.g.: + + /* Find the first "a" element */ + node = mxmlFindElement(tree, tree, "a", NULL, NULL, MXML_DESCEND); + + /* Find the first "a" element with "href" attribute */ + node = mxmlFindElement(tree, tree, "a", "href", NULL, MXML_DESCEND); + + /* Find the first "a" element with "href" to a URL */ + node = mxmlFindElement(tree, tree, "a", "href", + "http://www.minixml.org/", + MXML_DESCEND); + + /* Find the first element with a "src" attribute*/ + node = mxmlFindElement(tree, tree, NULL, "src", NULL, MXML_DESCEND); + + /* Find the first element with a "src" = "foo.jpg" */ + node = mxmlFindElement(tree, tree, NULL, "src", "foo.jpg", + MXML_DESCEND); + + You can also iterate with the same function: + + mxml_node_t *node; + + for (node = mxmlFindElement(tree, tree, "name", NULL, NULL, + MXML_DESCEND); + node != NULL; + node = mxmlFindElement(node, tree, "name", NULL, NULL, + MXML_DESCEND)) + { + ... do something ... + } + + The "mxmlFindPath()" function finds the (first) value node under a specific + element using a "path": + + mxml_node_t *value = mxmlFindPath(tree, "path/to/*/foo/bar"); + + The "mxmlGetInteger()", "mxmlGetOpaque()", "mxmlGetReal()", and + "mxmlGetText()" functions retrieve the value from a node: + + mxml_node_t *node; + + int intvalue = mxmlGetInteger(node); + + const char *opaquevalue = mxmlGetOpaque(node); + + double realvalue = mxmlGetReal(node); + + int whitespacevalue; + const char *textvalue = mxmlGetText(node, &whitespacevalue); + + Finally, once you are done with the XML data, use the "mxmlDelete()" + function to recursively free the memory that is used for a particular node + or the entire tree: + + mxmlDelete(tree); + + +GETTING HELP AND REPORTING PROBLEMS + + The Mini-XML web site provides access to a discussion forum and bug + reporting page: + + http://www.minixml.org/ + + +LEGAL STUFF + + The Mini-XML library is Copyright 2003-2011 by Michael Sweet. License terms + are described in the file "COPYING". diff --git a/xml/afiles b/xml/afiles new file mode 100644 index 0000000..85c3914 --- /dev/null +++ b/xml/afiles @@ -0,0 +1,33 @@ +afiles +Jamfile +README +COPYING +ANNOUNCEMENT +CHANGES +Makefile.in +afiles +config.h.in +configure +configure.in +install-sh +config.h +mxml.h +mxml-attr.c +mxml-entity.c +mxml-file.c +mxml-get.c +mxml-index.c +mxml-node.c +mxml-private.c +mxml-private.h +mxml-search.c +mxml-set.c +mxml-string.c +mxml.list.in +mxml.pc.in +mxml.spec +mxml.xml +mxmldoc.c +test.xml +testmxml.c +doc/Mini-XML.pdf diff --git a/xml/config.h b/xml/config.h new file mode 100644 index 0000000..d0fcb76 --- /dev/null +++ b/xml/config.h @@ -0,0 +1,205 @@ +/* + * "$Id: config.h 408 2010-09-19 05:26:46Z mike $" + * + * Configuration file for Mini-XML, a small XML-like file parsing library. + * + * Copyright 2003-2010 by Michael R Sweet. + * + * These coded instructions, statements, and computer programs are the + * property of Michael R Sweet and are protected by Federal copyright + * law. Distribution and use rights are outlined in the file "COPYING" + * which should have been included with this file. If this file is + * missing or damaged, see the license at: + * + * http://www.minixml.org/ + */ + + +/* ================================================================ */ +#ifdef NT + +/* + * Beginning with VC2005, Microsoft breaks ISO C and POSIX conformance + * by deprecating a number of functions in the name of security, even + * when many of the affected functions are otherwise completely secure. + * The _CRT_SECURE_NO_DEPRECATE definition ensures that we won't get + * warnings from their use... + * + * Then Microsoft decided that they should ignore this in VC2008 and use + * yet another define (_CRT_SECURE_NO_WARNINGS) instead. Bastards. + */ + +#ifndef _CRT_SECURE_NO_DEPRECATE +# define _CRT_SECURE_NO_DEPRECATE +#endif + +#ifndef _CRT_SECURE_NO_WARNINGS +# define _CRT_SECURE_NO_WARNINGS +#endif + + +/* + * Include necessary headers... + */ + +#include +#include +#include +#include +#include +#include + + +/* + * Microsoft also renames the POSIX functions to _name, and introduces + * a broken compatibility layer using the original names. As a result, + * random crashes can occur when, for example, strdup() allocates memory + * from a different heap than used by malloc() and free(). + * + * To avoid moronic problems like this, we #define the POSIX function + * names to the corresponding non-standard Microsoft names. + */ + +#define close _close +#define open _open +#define read _read +#define snprintf _snprintf +#define strdup _strdup +#define vsnprintf _vsnprintf +#define write _write + + +/* + * Version number... + */ + +#define MXML_VERSION "Mini-XML v2.7" + + +/* + * Inline function support... + */ + +#define inline _inline + + +/* + * Long long support... + */ + +#define HAVE_LONG_LONG 1 + + +/* + * Do we have the snprintf() and vsnprintf() functions? + */ + +#define HAVE_SNPRINTF 1 +#define HAVE_VSNPRINTF 1 + + +/* + * Do we have the strXXX() functions? + */ + +#define HAVE_STRDUP 1 + + +/* + * Define prototypes for string functions as needed... + */ + +# ifndef HAVE_STRDUP +extern char *_mxml_strdup(const char *); +# define strdup _mxml_strdup +# endif /* !HAVE_STRDUP */ + +extern char *_mxml_strdupf(const char *, ...); +extern char *_mxml_vstrdupf(const char *, va_list); + +# ifndef HAVE_SNPRINTF +extern int _mxml_snprintf(char *, size_t, const char *, ...); +# define snprintf _mxml_snprintf +# endif /* !HAVE_SNPRINTF */ + +# ifndef HAVE_VSNPRINTF +extern int _mxml_vsnprintf(char *, size_t, const char *, va_list); +# define vsnprintf _mxml_vsnprintf +# endif /* !HAVE_VSNPRINTF */ + +#endif /* NT */ + +/* ================================================================ */ +/* Linux and OS X have exactly the same config */ + +#if defined(UNIX) + +/* + * Include necessary headers... + */ + +#include +#include +#include +#include +#include + +/* + * Inline function support... + */ + +#define inline + +/* + * Long long support... + */ + +#define HAVE_LONG_LONG 1 + +/* + * Do we have the snprintf() and vsnprintf() functions? + */ + +#define HAVE_SNPRINTF 1 +#define HAVE_VSNPRINTF 1 + +/* + * Do we have the strXXX() functions? + */ + +#define HAVE_STRDUP 1 + +/* + * Do we have threading support? + */ + +#define HAVE_PTHREAD_H 1 + +/* + * Define prototypes for string functions as needed... + */ + +# ifndef HAVE_STRDUP +extern char *_mxml_strdup(const char *); +# define strdup _mxml_strdup +# endif /* !HAVE_STRDUP */ + +extern char *_mxml_strdupf(const char *, ...); +extern char *_mxml_vstrdupf(const char *, va_list); + +# ifndef HAVE_SNPRINTF +extern int _mxml_snprintf(char *, size_t, const char *, ...); +# define snprintf _mxml_snprintf +# endif /* !HAVE_SNPRINTF */ + +# ifndef HAVE_VSNPRINTF +extern int _mxml_vsnprintf(char *, size_t, const char *, va_list); +# define vsnprintf _mxml_vsnprintf +# endif /* !HAVE_VSNPRINTF */ + +#endif /* UNIX */ + +/* + * End of "$Id: config.h 408 2010-09-19 05:26:46Z mike $". + */ + diff --git a/xml/config.h.in b/xml/config.h.in new file mode 100644 index 0000000..8bae4bf --- /dev/null +++ b/xml/config.h.in @@ -0,0 +1,95 @@ +/* + * "$Id: config.h.in 408 2010-09-19 05:26:46Z mike $" + * + * Configuration file for Mini-XML, a small XML-like file parsing library. + * + * Copyright 2003-2010 by Michael R Sweet. + * + * These coded instructions, statements, and computer programs are the + * property of Michael R Sweet and are protected by Federal copyright + * law. Distribution and use rights are outlined in the file "COPYING" + * which should have been included with this file. If this file is + * missing or damaged, see the license at: + * + * http://www.minixml.org/ + */ + +/* + * Include necessary headers... + */ + +#include +#include +#include +#include +#include + + +/* + * Version number... + */ + +#define MXML_VERSION "" + + +/* + * Inline function support... + */ + +#define inline + + +/* + * Long long support... + */ + +#undef HAVE_LONG_LONG + + +/* + * Do we have the snprintf() and vsnprintf() functions? + */ + +#undef HAVE_SNPRINTF +#undef HAVE_VSNPRINTF + + +/* + * Do we have the strXXX() functions? + */ + +#undef HAVE_STRDUP + + +/* + * Do we have threading support? + */ + +#undef HAVE_PTHREAD_H + + +/* + * Define prototypes for string functions as needed... + */ + +# ifndef HAVE_STRDUP +extern char *_mxml_strdup(const char *); +# define strdup _mxml_strdup +# endif /* !HAVE_STRDUP */ + +extern char *_mxml_strdupf(const char *, ...); +extern char *_mxml_vstrdupf(const char *, va_list); + +# ifndef HAVE_SNPRINTF +extern int _mxml_snprintf(char *, size_t, const char *, ...); +# define snprintf _mxml_snprintf +# endif /* !HAVE_SNPRINTF */ + +# ifndef HAVE_VSNPRINTF +extern int _mxml_vsnprintf(char *, size_t, const char *, va_list); +# define vsnprintf _mxml_vsnprintf +# endif /* !HAVE_VSNPRINTF */ + +/* + * End of "$Id: config.h.in 408 2010-09-19 05:26:46Z mike $". + */ diff --git a/xml/configure b/xml/configure new file mode 100644 index 0000000..821fb83 --- /dev/null +++ b/xml/configure @@ -0,0 +1,5974 @@ +#! /bin/sh +# Guess values for system-dependent variables and create Makefiles. +# Generated by GNU Autoconf 2.61. +# +# Copyright (C) 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2001, +# 2002, 2003, 2004, 2005, 2006 Free Software Foundation, Inc. +# This configure script is free software; the Free Software Foundation +# gives unlimited permission to copy, distribute and modify it. +## --------------------- ## +## M4sh Initialization. ## +## --------------------- ## + +# Be more Bourne compatible +DUALCASE=1; export DUALCASE # for MKS sh +if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then + emulate sh + NULLCMD=: + # Zsh 3.x and 4.x performs word splitting on ${1+"$@"}, which + # is contrary to our usage. Disable this feature. + alias -g '${1+"$@"}'='"$@"' + setopt NO_GLOB_SUBST +else + case `(set -o) 2>/dev/null` in + *posix*) set -o posix ;; +esac + +fi + + + + +# PATH needs CR +# Avoid depending upon Character Ranges. +as_cr_letters='abcdefghijklmnopqrstuvwxyz' +as_cr_LETTERS='ABCDEFGHIJKLMNOPQRSTUVWXYZ' +as_cr_Letters=$as_cr_letters$as_cr_LETTERS +as_cr_digits='0123456789' +as_cr_alnum=$as_cr_Letters$as_cr_digits + +# The user is always right. +if test "${PATH_SEPARATOR+set}" != set; then + echo "#! /bin/sh" >conf$$.sh + echo "exit 0" >>conf$$.sh + chmod +x conf$$.sh + if (PATH="/nonexistent;."; conf$$.sh) >/dev/null 2>&1; then + PATH_SEPARATOR=';' + else + PATH_SEPARATOR=: + fi + rm -f conf$$.sh +fi + +# Support unset when possible. +if ( (MAIL=60; unset MAIL) || exit) >/dev/null 2>&1; then + as_unset=unset +else + as_unset=false +fi + + +# IFS +# We need space, tab and new line, in precisely that order. Quoting is +# there to prevent editors from complaining about space-tab. +# (If _AS_PATH_WALK were called with IFS unset, it would disable word +# splitting by setting IFS to empty value.) +as_nl=' +' +IFS=" "" $as_nl" + +# Find who we are. Look in the path if we contain no directory separator. +case $0 in + *[\\/]* ) as_myself=$0 ;; + *) as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + test -r "$as_dir/$0" && as_myself=$as_dir/$0 && break +done +IFS=$as_save_IFS + + ;; +esac +# We did not find ourselves, most probably we were run as `sh COMMAND' +# in which case we are not to be found in the path. +if test "x$as_myself" = x; then + as_myself=$0 +fi +if test ! -f "$as_myself"; then + echo "$as_myself: error: cannot find myself; rerun with an absolute file name" >&2 + { (exit 1); exit 1; } +fi + +# Work around bugs in pre-3.0 UWIN ksh. +for as_var in ENV MAIL MAILPATH +do ($as_unset $as_var) >/dev/null 2>&1 && $as_unset $as_var +done +PS1='$ ' +PS2='> ' +PS4='+ ' + +# NLS nuisances. +for as_var in \ + LANG LANGUAGE LC_ADDRESS LC_ALL LC_COLLATE LC_CTYPE LC_IDENTIFICATION \ + LC_MEASUREMENT LC_MESSAGES LC_MONETARY LC_NAME LC_NUMERIC LC_PAPER \ + LC_TELEPHONE LC_TIME +do + if (set +x; test -z "`(eval $as_var=C; export $as_var) 2>&1`"); then + eval $as_var=C; export $as_var + else + ($as_unset $as_var) >/dev/null 2>&1 && $as_unset $as_var + fi +done + +# Required to use basename. +if expr a : '\(a\)' >/dev/null 2>&1 && + test "X`expr 00001 : '.*\(...\)'`" = X001; then + as_expr=expr +else + as_expr=false +fi + +if (basename -- /) >/dev/null 2>&1 && test "X`basename -- / 2>&1`" = "X/"; then + as_basename=basename +else + as_basename=false +fi + + +# Name of the executable. +as_me=`$as_basename -- "$0" || +$as_expr X/"$0" : '.*/\([^/][^/]*\)/*$' \| \ + X"$0" : 'X\(//\)$' \| \ + X"$0" : 'X\(/\)' \| . 2>/dev/null || +echo X/"$0" | + sed '/^.*\/\([^/][^/]*\)\/*$/{ + s//\1/ + q + } + /^X\/\(\/\/\)$/{ + s//\1/ + q + } + /^X\/\(\/\).*/{ + s//\1/ + q + } + s/.*/./; q'` + +# CDPATH. +$as_unset CDPATH + + +if test "x$CONFIG_SHELL" = x; then + if (eval ":") 2>/dev/null; then + as_have_required=yes +else + as_have_required=no +fi + + if test $as_have_required = yes && (eval ": +(as_func_return () { + (exit \$1) +} +as_func_success () { + as_func_return 0 +} +as_func_failure () { + as_func_return 1 +} +as_func_ret_success () { + return 0 +} +as_func_ret_failure () { + return 1 +} + +exitcode=0 +if as_func_success; then + : +else + exitcode=1 + echo as_func_success failed. +fi + +if as_func_failure; then + exitcode=1 + echo as_func_failure succeeded. +fi + +if as_func_ret_success; then + : +else + exitcode=1 + echo as_func_ret_success failed. +fi + +if as_func_ret_failure; then + exitcode=1 + echo as_func_ret_failure succeeded. +fi + +if ( set x; as_func_ret_success y && test x = \"\$1\" ); then + : +else + exitcode=1 + echo positional parameters were not saved. +fi + +test \$exitcode = 0) || { (exit 1); exit 1; } + +( + as_lineno_1=\$LINENO + as_lineno_2=\$LINENO + test \"x\$as_lineno_1\" != \"x\$as_lineno_2\" && + test \"x\`expr \$as_lineno_1 + 1\`\" = \"x\$as_lineno_2\") || { (exit 1); exit 1; } +") 2> /dev/null; then + : +else + as_candidate_shells= + as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in /bin$PATH_SEPARATOR/usr/bin$PATH_SEPARATOR$PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + case $as_dir in + /*) + for as_base in sh bash ksh sh5; do + as_candidate_shells="$as_candidate_shells $as_dir/$as_base" + done;; + esac +done +IFS=$as_save_IFS + + + for as_shell in $as_candidate_shells $SHELL; do + # Try only shells that exist, to save several forks. + if { test -f "$as_shell" || test -f "$as_shell.exe"; } && + { ("$as_shell") 2> /dev/null <<\_ASEOF +if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then + emulate sh + NULLCMD=: + # Zsh 3.x and 4.x performs word splitting on ${1+"$@"}, which + # is contrary to our usage. Disable this feature. + alias -g '${1+"$@"}'='"$@"' + setopt NO_GLOB_SUBST +else + case `(set -o) 2>/dev/null` in + *posix*) set -o posix ;; +esac + +fi + + +: +_ASEOF +}; then + CONFIG_SHELL=$as_shell + as_have_required=yes + if { "$as_shell" 2> /dev/null <<\_ASEOF +if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then + emulate sh + NULLCMD=: + # Zsh 3.x and 4.x performs word splitting on ${1+"$@"}, which + # is contrary to our usage. Disable this feature. + alias -g '${1+"$@"}'='"$@"' + setopt NO_GLOB_SUBST +else + case `(set -o) 2>/dev/null` in + *posix*) set -o posix ;; +esac + +fi + + +: +(as_func_return () { + (exit $1) +} +as_func_success () { + as_func_return 0 +} +as_func_failure () { + as_func_return 1 +} +as_func_ret_success () { + return 0 +} +as_func_ret_failure () { + return 1 +} + +exitcode=0 +if as_func_success; then + : +else + exitcode=1 + echo as_func_success failed. +fi + +if as_func_failure; then + exitcode=1 + echo as_func_failure succeeded. +fi + +if as_func_ret_success; then + : +else + exitcode=1 + echo as_func_ret_success failed. +fi + +if as_func_ret_failure; then + exitcode=1 + echo as_func_ret_failure succeeded. +fi + +if ( set x; as_func_ret_success y && test x = "$1" ); then + : +else + exitcode=1 + echo positional parameters were not saved. +fi + +test $exitcode = 0) || { (exit 1); exit 1; } + +( + as_lineno_1=$LINENO + as_lineno_2=$LINENO + test "x$as_lineno_1" != "x$as_lineno_2" && + test "x`expr $as_lineno_1 + 1`" = "x$as_lineno_2") || { (exit 1); exit 1; } + +_ASEOF +}; then + break +fi + +fi + + done + + if test "x$CONFIG_SHELL" != x; then + for as_var in BASH_ENV ENV + do ($as_unset $as_var) >/dev/null 2>&1 && $as_unset $as_var + done + export CONFIG_SHELL + exec "$CONFIG_SHELL" "$as_myself" ${1+"$@"} +fi + + + if test $as_have_required = no; then + echo This script requires a shell more modern than all the + echo shells that I found on your system. Please install a + echo modern shell, or manually run the script under such a + echo shell if you do have one. + { (exit 1); exit 1; } +fi + + +fi + +fi + + + +(eval "as_func_return () { + (exit \$1) +} +as_func_success () { + as_func_return 0 +} +as_func_failure () { + as_func_return 1 +} +as_func_ret_success () { + return 0 +} +as_func_ret_failure () { + return 1 +} + +exitcode=0 +if as_func_success; then + : +else + exitcode=1 + echo as_func_success failed. +fi + +if as_func_failure; then + exitcode=1 + echo as_func_failure succeeded. +fi + +if as_func_ret_success; then + : +else + exitcode=1 + echo as_func_ret_success failed. +fi + +if as_func_ret_failure; then + exitcode=1 + echo as_func_ret_failure succeeded. +fi + +if ( set x; as_func_ret_success y && test x = \"\$1\" ); then + : +else + exitcode=1 + echo positional parameters were not saved. +fi + +test \$exitcode = 0") || { + echo No shell found that supports shell functions. + echo Please tell autoconf@gnu.org about your system, + echo including any error possibly output before this + echo message +} + + + + as_lineno_1=$LINENO + as_lineno_2=$LINENO + test "x$as_lineno_1" != "x$as_lineno_2" && + test "x`expr $as_lineno_1 + 1`" = "x$as_lineno_2" || { + + # Create $as_me.lineno as a copy of $as_myself, but with $LINENO + # uniformly replaced by the line number. The first 'sed' inserts a + # line-number line after each line using $LINENO; the second 'sed' + # does the real work. The second script uses 'N' to pair each + # line-number line with the line containing $LINENO, and appends + # trailing '-' during substitution so that $LINENO is not a special + # case at line end. + # (Raja R Harinath suggested sed '=', and Paul Eggert wrote the + # scripts with optimization help from Paolo Bonzini. Blame Lee + # E. McMahon (1931-1989) for sed's syntax. :-) + sed -n ' + p + /[$]LINENO/= + ' <$as_myself | + sed ' + s/[$]LINENO.*/&-/ + t lineno + b + :lineno + N + :loop + s/[$]LINENO\([^'$as_cr_alnum'_].*\n\)\(.*\)/\2\1\2/ + t loop + s/-\n.*// + ' >$as_me.lineno && + chmod +x "$as_me.lineno" || + { echo "$as_me: error: cannot create $as_me.lineno; rerun with a POSIX shell" >&2 + { (exit 1); exit 1; }; } + + # Don't try to exec as it changes $[0], causing all sort of problems + # (the dirname of $[0] is not the place where we might find the + # original and so on. Autoconf is especially sensitive to this). + . "./$as_me.lineno" + # Exit status is that of the last command. + exit +} + + +if (as_dir=`dirname -- /` && test "X$as_dir" = X/) >/dev/null 2>&1; then + as_dirname=dirname +else + as_dirname=false +fi + +ECHO_C= ECHO_N= ECHO_T= +case `echo -n x` in +-n*) + case `echo 'x\c'` in + *c*) ECHO_T=' ';; # ECHO_T is single tab character. + *) ECHO_C='\c';; + esac;; +*) + ECHO_N='-n';; +esac + +if expr a : '\(a\)' >/dev/null 2>&1 && + test "X`expr 00001 : '.*\(...\)'`" = X001; then + as_expr=expr +else + as_expr=false +fi + +rm -f conf$$ conf$$.exe conf$$.file +if test -d conf$$.dir; then + rm -f conf$$.dir/conf$$.file +else + rm -f conf$$.dir + mkdir conf$$.dir +fi +echo >conf$$.file +if ln -s conf$$.file conf$$ 2>/dev/null; then + as_ln_s='ln -s' + # ... but there are two gotchas: + # 1) On MSYS, both `ln -s file dir' and `ln file dir' fail. + # 2) DJGPP < 2.04 has no symlinks; `ln -s' creates a wrapper executable. + # In both cases, we have to default to `cp -p'. + ln -s conf$$.file conf$$.dir 2>/dev/null && test ! -f conf$$.exe || + as_ln_s='cp -p' +elif ln conf$$.file conf$$ 2>/dev/null; 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See below for descriptions of some of the useful variables. + +Defaults for the options are specified in brackets. + +Configuration: + -h, --help display this help and exit + --help=short display options specific to this package + --help=recursive display the short help of all the included packages + -V, --version display version information and exit + -q, --quiet, --silent do not print \`checking...' messages + --cache-file=FILE cache test results in FILE [disabled] + -C, --config-cache alias for \`--cache-file=config.cache' + -n, --no-create do not create output files + --srcdir=DIR find the sources in DIR [configure dir or \`..'] + +Installation directories: + --prefix=PREFIX install architecture-independent files in PREFIX + [$ac_default_prefix] + --exec-prefix=EPREFIX install architecture-dependent files in EPREFIX + [PREFIX] + +By default, \`make install' will install all the files in +\`$ac_default_prefix/bin', \`$ac_default_prefix/lib' etc. You can specify +an installation prefix other than \`$ac_default_prefix' using \`--prefix', +for instance \`--prefix=\$HOME'. + +For better control, use the options below. + +Fine tuning of the installation directories: + --bindir=DIR user executables [EPREFIX/bin] + --sbindir=DIR system admin executables [EPREFIX/sbin] + --libexecdir=DIR program executables [EPREFIX/libexec] + --sysconfdir=DIR read-only single-machine data [PREFIX/etc] + --sharedstatedir=DIR modifiable architecture-independent data [PREFIX/com] + --localstatedir=DIR modifiable single-machine data [PREFIX/var] + --libdir=DIR object code libraries [EPREFIX/lib] + --includedir=DIR C header files [PREFIX/include] + --oldincludedir=DIR C header files for non-gcc [/usr/include] + --datarootdir=DIR read-only arch.-independent data root [PREFIX/share] + --datadir=DIR read-only architecture-independent data [DATAROOTDIR] + --infodir=DIR info documentation [DATAROOTDIR/info] + --localedir=DIR locale-dependent data [DATAROOTDIR/locale] + --mandir=DIR man documentation [DATAROOTDIR/man] + --docdir=DIR documentation root [DATAROOTDIR/doc/PACKAGE] + --htmldir=DIR html documentation [DOCDIR] + --dvidir=DIR dvi documentation [DOCDIR] + --pdfdir=DIR pdf documentation [DOCDIR] + --psdir=DIR ps documentation [DOCDIR] +_ACEOF + + cat <<\_ACEOF +_ACEOF +fi + +if test -n "$ac_init_help"; then + + cat <<\_ACEOF + +Optional Features: + --disable-FEATURE do not include FEATURE (same as --enable-FEATURE=no) + --enable-FEATURE[=ARG] include FEATURE [ARG=yes] + --enable-debug turn on debugging, default=no + --enable-threads enable multi-threading support + --enable-shared turn on shared libraries, default=no + +Optional Packages: + --with-PACKAGE[=ARG] use PACKAGE [ARG=yes] + --without-PACKAGE do not use PACKAGE (same as --with-PACKAGE=no) + --with-ansi set full ANSI C mode, default=no + --with-archflags set additional architecture flags, default=none + --with-docdir set directory for documentation, default=${prefix}/share/doc/mxml + --with-vsnprintf use vsnprintf emulation functions, default=auto + +Some influential environment variables: + CC C compiler command + CFLAGS C compiler flags + LDFLAGS linker flags, e.g. -L if you have libraries in a + nonstandard directory + LIBS libraries to pass to the linker, e.g. -l + CPPFLAGS C/C++/Objective C preprocessor flags, e.g. -I if + you have headers in a nonstandard directory + CXX C++ compiler command + CXXFLAGS C++ compiler flags + CPP C preprocessor + +Use these variables to override the choices made by `configure' or to help +it to find libraries and programs with nonstandard names/locations. + +_ACEOF +ac_status=$? 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If you think this +configuration is useful to you, please write to autoconf@gnu.org." >&5 +echo "$as_me: WARNING: In the future, Autoconf will not detect cross-tools +whose name does not start with the host triplet. If you think this +configuration is useful to you, please write to autoconf@gnu.org." >&2;} +ac_tool_warned=yes ;; +esac + CC=$ac_ct_CC + fi +else + CC="$ac_cv_prog_CC" +fi + +if test -z "$CC"; then + if test -n "$ac_tool_prefix"; then + # Extract the first word of "${ac_tool_prefix}cc", so it can be a program name with args. +set dummy ${ac_tool_prefix}cc; ac_word=$2 +{ echo "$as_me:$LINENO: checking for $ac_word" >&5 +echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6; } +if test "${ac_cv_prog_CC+set}" = set; then + echo $ECHO_N "(cached) $ECHO_C" >&6 +else + if test -n "$CC"; then + ac_cv_prog_CC="$CC" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then + ac_cv_prog_CC="${ac_tool_prefix}cc" + echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done +done +IFS=$as_save_IFS + +fi +fi +CC=$ac_cv_prog_CC +if test -n "$CC"; then + { echo "$as_me:$LINENO: result: $CC" >&5 +echo "${ECHO_T}$CC" >&6; } +else + { echo "$as_me:$LINENO: result: no" >&5 +echo "${ECHO_T}no" >&6; } +fi + + + fi +fi +if test -z "$CC"; then + # Extract the first word of "cc", so it can be a program name with args. +set dummy cc; ac_word=$2 +{ echo "$as_me:$LINENO: checking for $ac_word" >&5 +echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6; } +if test "${ac_cv_prog_CC+set}" = set; then + echo $ECHO_N "(cached) $ECHO_C" >&6 +else + if test -n "$CC"; then + ac_cv_prog_CC="$CC" # Let the user override the test. +else + ac_prog_rejected=no +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then + if test "$as_dir/$ac_word$ac_exec_ext" = "/usr/ucb/cc"; then + ac_prog_rejected=yes + continue + fi + ac_cv_prog_CC="cc" + echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done +done +IFS=$as_save_IFS + +if test $ac_prog_rejected = yes; then + # We found a bogon in the path, so make sure we never use it. + set dummy $ac_cv_prog_CC + shift + if test $# != 0; then + # We chose a different compiler from the bogus one. + # However, it has the same basename, so the bogon will be chosen + # first if we set CC to just the basename; use the full file name. + shift + ac_cv_prog_CC="$as_dir/$ac_word${1+' '}$@" + fi +fi +fi +fi +CC=$ac_cv_prog_CC +if test -n "$CC"; then + { echo "$as_me:$LINENO: result: $CC" >&5 +echo "${ECHO_T}$CC" >&6; } +else + { echo "$as_me:$LINENO: result: no" >&5 +echo "${ECHO_T}no" >&6; } +fi + + +fi +if test -z "$CC"; then + if test -n "$ac_tool_prefix"; then + for ac_prog in cl.exe + do + # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args. +set dummy $ac_tool_prefix$ac_prog; ac_word=$2 +{ echo "$as_me:$LINENO: checking for $ac_word" >&5 +echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6; } +if test "${ac_cv_prog_CC+set}" = set; then + echo $ECHO_N "(cached) $ECHO_C" >&6 +else + if test -n "$CC"; then + ac_cv_prog_CC="$CC" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then + ac_cv_prog_CC="$ac_tool_prefix$ac_prog" + echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done +done +IFS=$as_save_IFS + +fi +fi +CC=$ac_cv_prog_CC +if test -n "$CC"; then + { echo "$as_me:$LINENO: result: $CC" >&5 +echo "${ECHO_T}$CC" >&6; } +else + { echo "$as_me:$LINENO: result: no" >&5 +echo "${ECHO_T}no" >&6; } +fi + + + test -n "$CC" && break + done +fi +if test -z "$CC"; then + ac_ct_CC=$CC + for ac_prog in cl.exe +do + # Extract the first word of "$ac_prog", so it can be a program name with args. +set dummy $ac_prog; ac_word=$2 +{ echo "$as_me:$LINENO: checking for $ac_word" >&5 +echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6; } +if test "${ac_cv_prog_ac_ct_CC+set}" = set; then + echo $ECHO_N "(cached) $ECHO_C" >&6 +else + if test -n "$ac_ct_CC"; then + ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then + ac_cv_prog_ac_ct_CC="$ac_prog" + echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done +done +IFS=$as_save_IFS + +fi +fi +ac_ct_CC=$ac_cv_prog_ac_ct_CC +if test -n "$ac_ct_CC"; then + { echo "$as_me:$LINENO: result: $ac_ct_CC" >&5 +echo "${ECHO_T}$ac_ct_CC" >&6; } +else + { echo "$as_me:$LINENO: result: no" >&5 +echo "${ECHO_T}no" >&6; } +fi + + + test -n "$ac_ct_CC" && break +done + + if test "x$ac_ct_CC" = x; then + CC="" + else + case $cross_compiling:$ac_tool_warned in +yes:) +{ echo "$as_me:$LINENO: WARNING: In the future, Autoconf will not detect cross-tools +whose name does not start with the host triplet. If you think this +configuration is useful to you, please write to autoconf@gnu.org." >&5 +echo "$as_me: WARNING: In the future, Autoconf will not detect cross-tools +whose name does not start with the host triplet. If you think this +configuration is useful to you, please write to autoconf@gnu.org." >&2;} +ac_tool_warned=yes ;; +esac + CC=$ac_ct_CC + fi +fi + +fi + + +test -z "$CC" && { { echo "$as_me:$LINENO: error: no acceptable C compiler found in \$PATH +See \`config.log' for more details." >&5 +echo "$as_me: error: no acceptable C compiler found in \$PATH +See \`config.log' for more details." >&2;} + { (exit 1); exit 1; }; } + +# Provide some information about the compiler. +echo "$as_me:$LINENO: checking for C compiler version" >&5 +ac_compiler=`set X $ac_compile; echo $2` +{ (ac_try="$ac_compiler --version >&5" +case "(($ac_try" in + *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; + *) ac_try_echo=$ac_try;; +esac +eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5 + (eval "$ac_compiler --version >&5") 2>&5 + ac_status=$? + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); } +{ (ac_try="$ac_compiler -v >&5" +case "(($ac_try" in + *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; + *) ac_try_echo=$ac_try;; +esac +eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5 + (eval "$ac_compiler -v >&5") 2>&5 + ac_status=$? + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); } +{ (ac_try="$ac_compiler -V >&5" +case "(($ac_try" in + *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; + *) ac_try_echo=$ac_try;; +esac +eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5 + (eval "$ac_compiler -V >&5") 2>&5 + ac_status=$? + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); } + +cat >conftest.$ac_ext <<_ACEOF +/* confdefs.h. */ +_ACEOF +cat confdefs.h >>conftest.$ac_ext +cat >>conftest.$ac_ext <<_ACEOF +/* end confdefs.h. */ + +int +main () +{ + + ; + return 0; +} +_ACEOF +ac_clean_files_save=$ac_clean_files +ac_clean_files="$ac_clean_files a.out a.exe b.out" +# Try to create an executable without -o first, disregard a.out. +# It will help us diagnose broken compilers, and finding out an intuition +# of exeext. +{ echo "$as_me:$LINENO: checking for C compiler default output file name" >&5 +echo $ECHO_N "checking for C compiler default output file name... $ECHO_C" >&6; } +ac_link_default=`echo "$ac_link" | sed 's/ -o *conftest[^ ]*//'` +# +# List of possible output files, starting from the most likely. +# The algorithm is not robust to junk in `.', hence go to wildcards (a.*) +# only as a last resort. b.out is created by i960 compilers. +ac_files='a_out.exe a.exe conftest.exe a.out conftest a.* conftest.* b.out' +# +# The IRIX 6 linker writes into existing files which may not be +# executable, retaining their permissions. Remove them first so a +# subsequent execution test works. +ac_rmfiles= +for ac_file in $ac_files +do + case $ac_file in + *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg | *.map | *.inf | *.o | *.obj ) ;; + * ) ac_rmfiles="$ac_rmfiles $ac_file";; + esac +done +rm -f $ac_rmfiles + +if { (ac_try="$ac_link_default" +case "(($ac_try" in + *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; + *) ac_try_echo=$ac_try;; +esac +eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5 + (eval "$ac_link_default") 2>&5 + ac_status=$? + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); }; then + # Autoconf-2.13 could set the ac_cv_exeext variable to `no'. +# So ignore a value of `no', otherwise this would lead to `EXEEXT = no' +# in a Makefile. We should not override ac_cv_exeext if it was cached, +# so that the user can short-circuit this test for compilers unknown to +# Autoconf. +for ac_file in $ac_files '' +do + test -f "$ac_file" || continue + case $ac_file in + *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg | *.map | *.inf | *.o | *.obj ) + ;; + [ab].out ) + # We found the default executable, but exeext='' is most + # certainly right. + break;; + *.* ) + if test "${ac_cv_exeext+set}" = set && test "$ac_cv_exeext" != no; + then :; else + ac_cv_exeext=`expr "$ac_file" : '[^.]*\(\..*\)'` + fi + # We set ac_cv_exeext here because the later test for it is not + # safe: cross compilers may not add the suffix if given an `-o' + # argument, so we may need to know it at that point already. + # Even if this section looks crufty: it has the advantage of + # actually working. + break;; + * ) + break;; + esac +done +test "$ac_cv_exeext" = no && ac_cv_exeext= + +else + ac_file='' +fi + +{ echo "$as_me:$LINENO: result: $ac_file" >&5 +echo "${ECHO_T}$ac_file" >&6; } +if test -z "$ac_file"; then + echo "$as_me: failed program was:" >&5 +sed 's/^/| /' conftest.$ac_ext >&5 + +{ { echo "$as_me:$LINENO: error: C compiler cannot create executables +See \`config.log' for more details." >&5 +echo "$as_me: error: C compiler cannot create executables +See \`config.log' for more details." >&2;} + { (exit 77); exit 77; }; } +fi + +ac_exeext=$ac_cv_exeext + +# Check that the compiler produces executables we can run. If not, either +# the compiler is broken, or we cross compile. +{ echo "$as_me:$LINENO: checking whether the C compiler works" >&5 +echo $ECHO_N "checking whether the C compiler works... $ECHO_C" >&6; } +# FIXME: These cross compiler hacks should be removed for Autoconf 3.0 +# If not cross compiling, check that we can run a simple program. +if test "$cross_compiling" != yes; then + if { ac_try='./$ac_file' + { (case "(($ac_try" in + *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; + *) ac_try_echo=$ac_try;; +esac +eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5 + (eval "$ac_try") 2>&5 + ac_status=$? + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); }; }; then + cross_compiling=no + else + if test "$cross_compiling" = maybe; then + cross_compiling=yes + else + { { echo "$as_me:$LINENO: error: cannot run C compiled programs. +If you meant to cross compile, use \`--host'. +See \`config.log' for more details." >&5 +echo "$as_me: error: cannot run C compiled programs. +If you meant to cross compile, use \`--host'. +See \`config.log' for more details." >&2;} + { (exit 1); exit 1; }; } + fi + fi +fi +{ echo "$as_me:$LINENO: result: yes" >&5 +echo "${ECHO_T}yes" >&6; } + +rm -f a.out a.exe conftest$ac_cv_exeext b.out +ac_clean_files=$ac_clean_files_save +# Check that the compiler produces executables we can run. If not, either +# the compiler is broken, or we cross compile. +{ echo "$as_me:$LINENO: checking whether we are cross compiling" >&5 +echo $ECHO_N "checking whether we are cross compiling... $ECHO_C" >&6; } +{ echo "$as_me:$LINENO: result: $cross_compiling" >&5 +echo "${ECHO_T}$cross_compiling" >&6; } + +{ echo "$as_me:$LINENO: checking for suffix of executables" >&5 +echo $ECHO_N "checking for suffix of executables... $ECHO_C" >&6; } +if { (ac_try="$ac_link" +case "(($ac_try" in + *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; + *) ac_try_echo=$ac_try;; +esac +eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5 + (eval "$ac_link") 2>&5 + ac_status=$? + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); }; then + # If both `conftest.exe' and `conftest' are `present' (well, observable) +# catch `conftest.exe'. For instance with Cygwin, `ls conftest' will +# work properly (i.e., refer to `conftest.exe'), while it won't with +# `rm'. +for ac_file in conftest.exe conftest conftest.*; do + test -f "$ac_file" || continue + case $ac_file in + *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg | *.map | *.inf | *.o | *.obj ) ;; + *.* ) ac_cv_exeext=`expr "$ac_file" : '[^.]*\(\..*\)'` + break;; + * ) break;; + esac +done +else + { { echo "$as_me:$LINENO: error: cannot compute suffix of executables: cannot compile and link +See \`config.log' for more details." >&5 +echo "$as_me: error: cannot compute suffix of executables: cannot compile and link +See \`config.log' for more details." >&2;} + { (exit 1); exit 1; }; } +fi + +rm -f conftest$ac_cv_exeext +{ echo "$as_me:$LINENO: result: $ac_cv_exeext" >&5 +echo "${ECHO_T}$ac_cv_exeext" >&6; } + +rm -f conftest.$ac_ext +EXEEXT=$ac_cv_exeext +ac_exeext=$EXEEXT +{ echo "$as_me:$LINENO: checking for suffix of object files" >&5 +echo $ECHO_N "checking for suffix of object files... $ECHO_C" >&6; } +if test "${ac_cv_objext+set}" = set; then + echo $ECHO_N "(cached) $ECHO_C" >&6 +else + cat >conftest.$ac_ext <<_ACEOF +/* confdefs.h. */ +_ACEOF +cat confdefs.h >>conftest.$ac_ext +cat >>conftest.$ac_ext <<_ACEOF +/* end confdefs.h. */ + +int +main () +{ + + ; + return 0; +} +_ACEOF +rm -f conftest.o conftest.obj +if { (ac_try="$ac_compile" +case "(($ac_try" in + *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; + *) ac_try_echo=$ac_try;; +esac +eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5 + (eval "$ac_compile") 2>&5 + ac_status=$? + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); }; then + for ac_file in conftest.o conftest.obj conftest.*; do + test -f "$ac_file" || continue; + case $ac_file in + *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg | *.map | *.inf ) ;; + *) ac_cv_objext=`expr "$ac_file" : '.*\.\(.*\)'` + break;; + esac +done +else + echo "$as_me: failed program was:" >&5 +sed 's/^/| /' conftest.$ac_ext >&5 + +{ { echo "$as_me:$LINENO: error: cannot compute suffix of object files: cannot compile +See \`config.log' for more details." >&5 +echo "$as_me: error: cannot compute suffix of object files: cannot compile +See \`config.log' for more details." >&2;} + { (exit 1); exit 1; }; } +fi + +rm -f conftest.$ac_cv_objext conftest.$ac_ext +fi +{ echo "$as_me:$LINENO: result: $ac_cv_objext" >&5 +echo "${ECHO_T}$ac_cv_objext" >&6; } +OBJEXT=$ac_cv_objext +ac_objext=$OBJEXT +{ echo "$as_me:$LINENO: checking whether we are using the GNU C compiler" >&5 +echo $ECHO_N "checking whether we are using the GNU C compiler... $ECHO_C" >&6; } +if test "${ac_cv_c_compiler_gnu+set}" = set; then + echo $ECHO_N "(cached) $ECHO_C" >&6 +else + cat >conftest.$ac_ext <<_ACEOF +/* confdefs.h. */ +_ACEOF +cat confdefs.h >>conftest.$ac_ext +cat >>conftest.$ac_ext <<_ACEOF +/* end confdefs.h. */ + +int +main () +{ +#ifndef __GNUC__ + choke me +#endif + + ; + return 0; +} +_ACEOF +rm -f conftest.$ac_objext +if { (ac_try="$ac_compile" +case "(($ac_try" in + *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; + *) ac_try_echo=$ac_try;; +esac +eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5 + (eval "$ac_compile") 2>conftest.er1 + ac_status=$? + grep -v '^ *+' conftest.er1 >conftest.err + rm -f conftest.er1 + cat conftest.err >&5 + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); } && { + test -z "$ac_c_werror_flag" || + test ! -s conftest.err + } && test -s conftest.$ac_objext; then + ac_compiler_gnu=yes +else + echo "$as_me: failed program was:" >&5 +sed 's/^/| /' conftest.$ac_ext >&5 + + ac_compiler_gnu=no +fi + +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext +ac_cv_c_compiler_gnu=$ac_compiler_gnu + +fi +{ echo "$as_me:$LINENO: result: $ac_cv_c_compiler_gnu" >&5 +echo "${ECHO_T}$ac_cv_c_compiler_gnu" >&6; } +GCC=`test $ac_compiler_gnu = yes && echo yes` +ac_test_CFLAGS=${CFLAGS+set} +ac_save_CFLAGS=$CFLAGS +{ echo "$as_me:$LINENO: checking whether $CC accepts -g" >&5 +echo $ECHO_N "checking whether $CC accepts -g... $ECHO_C" >&6; } +if test "${ac_cv_prog_cc_g+set}" = set; then + echo $ECHO_N "(cached) $ECHO_C" >&6 +else + ac_save_c_werror_flag=$ac_c_werror_flag + ac_c_werror_flag=yes + ac_cv_prog_cc_g=no + CFLAGS="-g" + cat >conftest.$ac_ext <<_ACEOF +/* confdefs.h. */ +_ACEOF +cat confdefs.h >>conftest.$ac_ext +cat >>conftest.$ac_ext <<_ACEOF +/* end confdefs.h. */ + +int +main () +{ + + ; + return 0; +} +_ACEOF +rm -f conftest.$ac_objext +if { (ac_try="$ac_compile" +case "(($ac_try" in + *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; + *) ac_try_echo=$ac_try;; +esac +eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5 + (eval "$ac_compile") 2>conftest.er1 + ac_status=$? + grep -v '^ *+' conftest.er1 >conftest.err + rm -f conftest.er1 + cat conftest.err >&5 + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); } && { + test -z "$ac_c_werror_flag" || + test ! -s conftest.err + } && test -s conftest.$ac_objext; then + ac_cv_prog_cc_g=yes +else + echo "$as_me: failed program was:" >&5 +sed 's/^/| /' conftest.$ac_ext >&5 + + CFLAGS="" + cat >conftest.$ac_ext <<_ACEOF +/* confdefs.h. */ +_ACEOF +cat confdefs.h >>conftest.$ac_ext +cat >>conftest.$ac_ext <<_ACEOF +/* end confdefs.h. */ + +int +main () +{ + + ; + return 0; +} +_ACEOF +rm -f conftest.$ac_objext +if { (ac_try="$ac_compile" +case "(($ac_try" in + *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; + *) ac_try_echo=$ac_try;; +esac +eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5 + (eval "$ac_compile") 2>conftest.er1 + ac_status=$? + grep -v '^ *+' conftest.er1 >conftest.err + rm -f conftest.er1 + cat conftest.err >&5 + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); } && { + test -z "$ac_c_werror_flag" || + test ! -s conftest.err + } && test -s conftest.$ac_objext; then + : +else + echo "$as_me: failed program was:" >&5 +sed 's/^/| /' conftest.$ac_ext >&5 + + ac_c_werror_flag=$ac_save_c_werror_flag + CFLAGS="-g" + cat >conftest.$ac_ext <<_ACEOF +/* confdefs.h. */ +_ACEOF +cat confdefs.h >>conftest.$ac_ext +cat >>conftest.$ac_ext <<_ACEOF +/* end confdefs.h. */ + +int +main () +{ + + ; + return 0; +} +_ACEOF +rm -f conftest.$ac_objext +if { (ac_try="$ac_compile" +case "(($ac_try" in + *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; + *) ac_try_echo=$ac_try;; +esac +eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5 + (eval "$ac_compile") 2>conftest.er1 + ac_status=$? + grep -v '^ *+' conftest.er1 >conftest.err + rm -f conftest.er1 + cat conftest.err >&5 + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); } && { + test -z "$ac_c_werror_flag" || + test ! -s conftest.err + } && test -s conftest.$ac_objext; then + ac_cv_prog_cc_g=yes +else + echo "$as_me: failed program was:" >&5 +sed 's/^/| /' conftest.$ac_ext >&5 + + +fi + +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext +fi + +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext +fi + +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext + ac_c_werror_flag=$ac_save_c_werror_flag +fi +{ echo "$as_me:$LINENO: result: $ac_cv_prog_cc_g" >&5 +echo "${ECHO_T}$ac_cv_prog_cc_g" >&6; } +if test "$ac_test_CFLAGS" = set; then + CFLAGS=$ac_save_CFLAGS +elif test $ac_cv_prog_cc_g = yes; then + if test "$GCC" = yes; then + CFLAGS="-g -O2" + else + CFLAGS="-g" + fi +else + if test "$GCC" = yes; then + CFLAGS="-O2" + else + CFLAGS= + fi +fi +{ echo "$as_me:$LINENO: checking for $CC option to accept ISO C89" >&5 +echo $ECHO_N "checking for $CC option to accept ISO C89... $ECHO_C" >&6; } +if test "${ac_cv_prog_cc_c89+set}" = set; then + echo $ECHO_N "(cached) $ECHO_C" >&6 +else + ac_cv_prog_cc_c89=no +ac_save_CC=$CC +cat >conftest.$ac_ext <<_ACEOF +/* confdefs.h. */ +_ACEOF +cat confdefs.h >>conftest.$ac_ext +cat >>conftest.$ac_ext <<_ACEOF +/* end confdefs.h. */ +#include +#include +#include +#include +/* Most of the following tests are stolen from RCS 5.7's src/conf.sh. */ +struct buf { int x; }; +FILE * (*rcsopen) (struct buf *, struct stat *, int); +static char *e (p, i) + char **p; + int i; +{ + return p[i]; +} +static char *f (char * (*g) (char **, int), char **p, ...) +{ + char *s; + va_list v; + va_start (v,p); + s = g (p, va_arg (v,int)); + va_end (v); + return s; +} + +/* OSF 4.0 Compaq cc is some sort of almost-ANSI by default. It has + function prototypes and stuff, but not '\xHH' hex character constants. + These don't provoke an error unfortunately, instead are silently treated + as 'x'. The following induces an error, until -std is added to get + proper ANSI mode. Curiously '\x00'!='x' always comes out true, for an + array size at least. It's necessary to write '\x00'==0 to get something + that's true only with -std. */ +int osf4_cc_array ['\x00' == 0 ? 1 : -1]; + +/* IBM C 6 for AIX is almost-ANSI by default, but it replaces macro parameters + inside strings and character constants. */ +#define FOO(x) 'x' +int xlc6_cc_array[FOO(a) == 'x' ? 1 : -1]; + +int test (int i, double x); +struct s1 {int (*f) (int a);}; +struct s2 {int (*f) (double a);}; +int pairnames (int, char **, FILE *(*)(struct buf *, struct stat *, int), int, int); +int argc; +char **argv; +int +main () +{ +return f (e, argv, 0) != argv[0] || f (e, argv, 1) != argv[1]; + ; + return 0; +} +_ACEOF +for ac_arg in '' -qlanglvl=extc89 -qlanglvl=ansi -std \ + -Ae "-Aa -D_HPUX_SOURCE" "-Xc -D__EXTENSIONS__" +do + CC="$ac_save_CC $ac_arg" + rm -f conftest.$ac_objext +if { (ac_try="$ac_compile" +case "(($ac_try" in + *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; + *) ac_try_echo=$ac_try;; +esac +eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5 + (eval "$ac_compile") 2>conftest.er1 + ac_status=$? + grep -v '^ *+' conftest.er1 >conftest.err + rm -f conftest.er1 + cat conftest.err >&5 + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); } && { + test -z "$ac_c_werror_flag" || + test ! -s conftest.err + } && test -s conftest.$ac_objext; then + ac_cv_prog_cc_c89=$ac_arg +else + echo "$as_me: failed program was:" >&5 +sed 's/^/| /' conftest.$ac_ext >&5 + + +fi + +rm -f core conftest.err conftest.$ac_objext + test "x$ac_cv_prog_cc_c89" != "xno" && break +done +rm -f conftest.$ac_ext +CC=$ac_save_CC + +fi +# AC_CACHE_VAL +case "x$ac_cv_prog_cc_c89" in + x) + { echo "$as_me:$LINENO: result: none needed" >&5 +echo "${ECHO_T}none needed" >&6; } ;; + xno) + { echo "$as_me:$LINENO: result: unsupported" >&5 +echo "${ECHO_T}unsupported" >&6; } ;; + *) + CC="$CC $ac_cv_prog_cc_c89" + { echo "$as_me:$LINENO: result: $ac_cv_prog_cc_c89" >&5 +echo "${ECHO_T}$ac_cv_prog_cc_c89" >&6; } ;; +esac + + +ac_ext=c +ac_cpp='$CPP $CPPFLAGS' +ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5' +ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' +ac_compiler_gnu=$ac_cv_c_compiler_gnu + +ac_ext=cpp +ac_cpp='$CXXCPP $CPPFLAGS' +ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5' +ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' +ac_compiler_gnu=$ac_cv_cxx_compiler_gnu +if test -z "$CXX"; then + if test -n "$CCC"; then + CXX=$CCC + else + if test -n "$ac_tool_prefix"; then + for ac_prog in g++ c++ gpp aCC CC cxx cc++ cl.exe FCC KCC RCC xlC_r xlC + do + # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args. +set dummy $ac_tool_prefix$ac_prog; ac_word=$2 +{ echo "$as_me:$LINENO: checking for $ac_word" >&5 +echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6; } +if test "${ac_cv_prog_CXX+set}" = set; then + echo $ECHO_N "(cached) $ECHO_C" >&6 +else + if test -n "$CXX"; then + ac_cv_prog_CXX="$CXX" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then + ac_cv_prog_CXX="$ac_tool_prefix$ac_prog" + echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done +done +IFS=$as_save_IFS + +fi +fi +CXX=$ac_cv_prog_CXX +if test -n "$CXX"; then + { echo "$as_me:$LINENO: result: $CXX" >&5 +echo "${ECHO_T}$CXX" >&6; } +else + { echo "$as_me:$LINENO: result: no" >&5 +echo "${ECHO_T}no" >&6; } +fi + + + test -n "$CXX" && break + done +fi +if test -z "$CXX"; then + ac_ct_CXX=$CXX + for ac_prog in g++ c++ gpp aCC CC cxx cc++ cl.exe FCC KCC RCC xlC_r xlC +do + # Extract the first word of "$ac_prog", so it can be a program name with args. +set dummy $ac_prog; ac_word=$2 +{ echo "$as_me:$LINENO: checking for $ac_word" >&5 +echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6; } +if test "${ac_cv_prog_ac_ct_CXX+set}" = set; then + echo $ECHO_N "(cached) $ECHO_C" >&6 +else + if test -n "$ac_ct_CXX"; then + ac_cv_prog_ac_ct_CXX="$ac_ct_CXX" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then + ac_cv_prog_ac_ct_CXX="$ac_prog" + echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done +done +IFS=$as_save_IFS + +fi +fi +ac_ct_CXX=$ac_cv_prog_ac_ct_CXX +if test -n "$ac_ct_CXX"; then + { echo "$as_me:$LINENO: result: $ac_ct_CXX" >&5 +echo "${ECHO_T}$ac_ct_CXX" >&6; } +else + { echo "$as_me:$LINENO: result: no" >&5 +echo "${ECHO_T}no" >&6; } +fi + + + test -n "$ac_ct_CXX" && break +done + + if test "x$ac_ct_CXX" = x; then + CXX="g++" + else + case $cross_compiling:$ac_tool_warned in +yes:) +{ echo "$as_me:$LINENO: WARNING: In the future, Autoconf will not detect cross-tools +whose name does not start with the host triplet. If you think this +configuration is useful to you, please write to autoconf@gnu.org." >&5 +echo "$as_me: WARNING: In the future, Autoconf will not detect cross-tools +whose name does not start with the host triplet. If you think this +configuration is useful to you, please write to autoconf@gnu.org." >&2;} +ac_tool_warned=yes ;; +esac + CXX=$ac_ct_CXX + fi +fi + + fi +fi +# Provide some information about the compiler. +echo "$as_me:$LINENO: checking for C++ compiler version" >&5 +ac_compiler=`set X $ac_compile; echo $2` +{ (ac_try="$ac_compiler --version >&5" +case "(($ac_try" in + *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; + *) ac_try_echo=$ac_try;; +esac +eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5 + (eval "$ac_compiler --version >&5") 2>&5 + ac_status=$? + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); } +{ (ac_try="$ac_compiler -v >&5" +case "(($ac_try" in + *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; + *) ac_try_echo=$ac_try;; +esac +eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5 + (eval "$ac_compiler -v >&5") 2>&5 + ac_status=$? + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); } +{ (ac_try="$ac_compiler -V >&5" +case "(($ac_try" in + *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; + *) ac_try_echo=$ac_try;; +esac +eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5 + (eval "$ac_compiler -V >&5") 2>&5 + ac_status=$? + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); } + +{ echo "$as_me:$LINENO: checking whether we are using the GNU C++ compiler" >&5 +echo $ECHO_N "checking whether we are using the GNU C++ compiler... $ECHO_C" >&6; } +if test "${ac_cv_cxx_compiler_gnu+set}" = set; then + echo $ECHO_N "(cached) $ECHO_C" >&6 +else + cat >conftest.$ac_ext <<_ACEOF +/* confdefs.h. */ +_ACEOF +cat confdefs.h >>conftest.$ac_ext +cat >>conftest.$ac_ext <<_ACEOF +/* end confdefs.h. */ + +int +main () +{ +#ifndef __GNUC__ + choke me +#endif + + ; + return 0; +} +_ACEOF +rm -f conftest.$ac_objext +if { (ac_try="$ac_compile" +case "(($ac_try" in + *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; + *) ac_try_echo=$ac_try;; +esac +eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5 + (eval "$ac_compile") 2>conftest.er1 + ac_status=$? + grep -v '^ *+' conftest.er1 >conftest.err + rm -f conftest.er1 + cat conftest.err >&5 + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); } && { + test -z "$ac_cxx_werror_flag" || + test ! -s conftest.err + } && test -s conftest.$ac_objext; then + ac_compiler_gnu=yes +else + echo "$as_me: failed program was:" >&5 +sed 's/^/| /' conftest.$ac_ext >&5 + + ac_compiler_gnu=no +fi + +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext +ac_cv_cxx_compiler_gnu=$ac_compiler_gnu + +fi +{ echo "$as_me:$LINENO: result: $ac_cv_cxx_compiler_gnu" >&5 +echo "${ECHO_T}$ac_cv_cxx_compiler_gnu" >&6; } +GXX=`test $ac_compiler_gnu = yes && echo yes` +ac_test_CXXFLAGS=${CXXFLAGS+set} +ac_save_CXXFLAGS=$CXXFLAGS +{ echo "$as_me:$LINENO: checking whether $CXX accepts -g" >&5 +echo $ECHO_N "checking whether $CXX accepts -g... $ECHO_C" >&6; } +if test "${ac_cv_prog_cxx_g+set}" = set; then + echo $ECHO_N "(cached) $ECHO_C" >&6 +else + ac_save_cxx_werror_flag=$ac_cxx_werror_flag + ac_cxx_werror_flag=yes + ac_cv_prog_cxx_g=no + CXXFLAGS="-g" + cat >conftest.$ac_ext <<_ACEOF +/* confdefs.h. */ +_ACEOF +cat confdefs.h >>conftest.$ac_ext +cat >>conftest.$ac_ext <<_ACEOF +/* end confdefs.h. */ + +int +main () +{ + + ; + return 0; +} +_ACEOF +rm -f conftest.$ac_objext +if { (ac_try="$ac_compile" +case "(($ac_try" in + *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; + *) ac_try_echo=$ac_try;; +esac +eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5 + (eval "$ac_compile") 2>conftest.er1 + ac_status=$? + grep -v '^ *+' conftest.er1 >conftest.err + rm -f conftest.er1 + cat conftest.err >&5 + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); } && { + test -z "$ac_cxx_werror_flag" || + test ! -s conftest.err + } && test -s conftest.$ac_objext; then + ac_cv_prog_cxx_g=yes +else + echo "$as_me: failed program was:" >&5 +sed 's/^/| /' conftest.$ac_ext >&5 + + CXXFLAGS="" + cat >conftest.$ac_ext <<_ACEOF +/* confdefs.h. */ +_ACEOF +cat confdefs.h >>conftest.$ac_ext +cat >>conftest.$ac_ext <<_ACEOF +/* end confdefs.h. */ + +int +main () +{ + + ; + return 0; +} +_ACEOF +rm -f conftest.$ac_objext +if { (ac_try="$ac_compile" +case "(($ac_try" in + *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; + *) ac_try_echo=$ac_try;; +esac +eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5 + (eval "$ac_compile") 2>conftest.er1 + ac_status=$? + grep -v '^ *+' conftest.er1 >conftest.err + rm -f conftest.er1 + cat conftest.err >&5 + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); } && { + test -z "$ac_cxx_werror_flag" || + test ! -s conftest.err + } && test -s conftest.$ac_objext; then + : +else + echo "$as_me: failed program was:" >&5 +sed 's/^/| /' conftest.$ac_ext >&5 + + ac_cxx_werror_flag=$ac_save_cxx_werror_flag + CXXFLAGS="-g" + cat >conftest.$ac_ext <<_ACEOF +/* confdefs.h. */ +_ACEOF +cat confdefs.h >>conftest.$ac_ext +cat >>conftest.$ac_ext <<_ACEOF +/* end confdefs.h. */ + +int +main () +{ + + ; + return 0; +} +_ACEOF +rm -f conftest.$ac_objext +if { (ac_try="$ac_compile" +case "(($ac_try" in + *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; + *) ac_try_echo=$ac_try;; +esac +eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5 + (eval "$ac_compile") 2>conftest.er1 + ac_status=$? + grep -v '^ *+' conftest.er1 >conftest.err + rm -f conftest.er1 + cat conftest.err >&5 + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); } && { + test -z "$ac_cxx_werror_flag" || + test ! -s conftest.err + } && test -s conftest.$ac_objext; then + ac_cv_prog_cxx_g=yes +else + echo "$as_me: failed program was:" >&5 +sed 's/^/| /' conftest.$ac_ext >&5 + + +fi + +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext +fi + +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext +fi + +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext + ac_cxx_werror_flag=$ac_save_cxx_werror_flag +fi +{ echo "$as_me:$LINENO: result: $ac_cv_prog_cxx_g" >&5 +echo "${ECHO_T}$ac_cv_prog_cxx_g" >&6; } +if test "$ac_test_CXXFLAGS" = set; then + CXXFLAGS=$ac_save_CXXFLAGS +elif test $ac_cv_prog_cxx_g = yes; then + if test "$GXX" = yes; then + CXXFLAGS="-g -O2" + else + CXXFLAGS="-g" + fi +else + if test "$GXX" = yes; then + CXXFLAGS="-O2" + else + CXXFLAGS= + fi +fi +ac_ext=c +ac_cpp='$CPP $CPPFLAGS' +ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5' +ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' +ac_compiler_gnu=$ac_cv_c_compiler_gnu + +ac_aux_dir= +for ac_dir in "$srcdir" "$srcdir/.." "$srcdir/../.."; do + if test -f "$ac_dir/install-sh"; then + ac_aux_dir=$ac_dir + ac_install_sh="$ac_aux_dir/install-sh -c" + break + elif test -f "$ac_dir/install.sh"; then + ac_aux_dir=$ac_dir + ac_install_sh="$ac_aux_dir/install.sh -c" + break + elif test -f "$ac_dir/shtool"; then + ac_aux_dir=$ac_dir + ac_install_sh="$ac_aux_dir/shtool install -c" + break + fi +done +if test -z "$ac_aux_dir"; then + { { echo "$as_me:$LINENO: error: cannot find install-sh or install.sh in \"$srcdir\" \"$srcdir/..\" \"$srcdir/../..\"" >&5 +echo "$as_me: error: cannot find install-sh or install.sh in \"$srcdir\" \"$srcdir/..\" \"$srcdir/../..\"" >&2;} + { (exit 1); exit 1; }; } +fi + +# These three variables are undocumented and unsupported, +# and are intended to be withdrawn in a future Autoconf release. +# They can cause serious problems if a builder's source tree is in a directory +# whose full name contains unusual characters. +ac_config_guess="$SHELL $ac_aux_dir/config.guess" # Please don't use this var. +ac_config_sub="$SHELL $ac_aux_dir/config.sub" # Please don't use this var. +ac_configure="$SHELL $ac_aux_dir/configure" # Please don't use this var. + + +# Find a good install program. We prefer a C program (faster), +# so one script is as good as another. But avoid the broken or +# incompatible versions: +# SysV /etc/install, /usr/sbin/install +# SunOS /usr/etc/install +# IRIX /sbin/install +# AIX /bin/install +# AmigaOS /C/install, which installs bootblocks on floppy discs +# AIX 4 /usr/bin/installbsd, which doesn't work without a -g flag +# AFS /usr/afsws/bin/install, which mishandles nonexistent args +# SVR4 /usr/ucb/install, which tries to use the nonexistent group "staff" +# OS/2's system install, which has a completely different semantic +# ./install, which can be erroneously created by make from ./install.sh. +{ echo "$as_me:$LINENO: checking for a BSD-compatible install" >&5 +echo $ECHO_N "checking for a BSD-compatible install... $ECHO_C" >&6; } +if test -z "$INSTALL"; then +if test "${ac_cv_path_install+set}" = set; then + echo $ECHO_N "(cached) $ECHO_C" >&6 +else + as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + # Account for people who put trailing slashes in PATH elements. +case $as_dir/ in + ./ | .// | /cC/* | \ + /etc/* | /usr/sbin/* | /usr/etc/* | /sbin/* | /usr/afsws/bin/* | \ + ?:\\/os2\\/install\\/* | ?:\\/OS2\\/INSTALL\\/* | \ + /usr/ucb/* ) ;; + *) + # OSF1 and SCO ODT 3.0 have their own names for install. + # Don't use installbsd from OSF since it installs stuff as root + # by default. + for ac_prog in ginstall scoinst install; do + for ac_exec_ext in '' $ac_executable_extensions; do + if { test -f "$as_dir/$ac_prog$ac_exec_ext" && $as_test_x "$as_dir/$ac_prog$ac_exec_ext"; }; then + if test $ac_prog = install && + grep dspmsg "$as_dir/$ac_prog$ac_exec_ext" >/dev/null 2>&1; then + # AIX install. It has an incompatible calling convention. + : + elif test $ac_prog = install && + grep pwplus "$as_dir/$ac_prog$ac_exec_ext" >/dev/null 2>&1; then + # program-specific install script used by HP pwplus--don't use. + : + else + ac_cv_path_install="$as_dir/$ac_prog$ac_exec_ext -c" + break 3 + fi + fi + done + done + ;; +esac +done +IFS=$as_save_IFS + + +fi + if test "${ac_cv_path_install+set}" = set; then + INSTALL=$ac_cv_path_install + else + # As a last resort, use the slow shell script. Don't cache a + # value for INSTALL within a source directory, because that will + # break other packages using the cache if that directory is + # removed, or if the value is a relative name. + INSTALL=$ac_install_sh + fi +fi +{ echo "$as_me:$LINENO: result: $INSTALL" >&5 +echo "${ECHO_T}$INSTALL" >&6; } + +# Use test -z because SunOS4 sh mishandles braces in ${var-val}. +# It thinks the first close brace ends the variable substitution. +test -z "$INSTALL_PROGRAM" && INSTALL_PROGRAM='${INSTALL}' + +test -z "$INSTALL_SCRIPT" && INSTALL_SCRIPT='${INSTALL}' + +test -z "$INSTALL_DATA" && INSTALL_DATA='${INSTALL} -m 644' + +if test "$INSTALL" = "$ac_install_sh"; then + # Use full path to install-sh script... + INSTALL="`pwd`/install-sh -c" +fi +if test -n "$ac_tool_prefix"; then + # Extract the first word of "${ac_tool_prefix}ranlib", so it can be a program name with args. +set dummy ${ac_tool_prefix}ranlib; ac_word=$2 +{ echo "$as_me:$LINENO: checking for $ac_word" >&5 +echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6; } +if test "${ac_cv_prog_RANLIB+set}" = set; then + echo $ECHO_N "(cached) $ECHO_C" >&6 +else + if test -n "$RANLIB"; then + ac_cv_prog_RANLIB="$RANLIB" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then + ac_cv_prog_RANLIB="${ac_tool_prefix}ranlib" + echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done +done +IFS=$as_save_IFS + +fi +fi +RANLIB=$ac_cv_prog_RANLIB +if test -n "$RANLIB"; then + { echo "$as_me:$LINENO: result: $RANLIB" >&5 +echo "${ECHO_T}$RANLIB" >&6; } +else + { echo "$as_me:$LINENO: result: no" >&5 +echo "${ECHO_T}no" >&6; } +fi + + +fi +if test -z "$ac_cv_prog_RANLIB"; then + ac_ct_RANLIB=$RANLIB + # Extract the first word of "ranlib", so it can be a program name with args. +set dummy ranlib; ac_word=$2 +{ echo "$as_me:$LINENO: checking for $ac_word" >&5 +echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6; } +if test "${ac_cv_prog_ac_ct_RANLIB+set}" = set; then + echo $ECHO_N "(cached) $ECHO_C" >&6 +else + if test -n "$ac_ct_RANLIB"; then + ac_cv_prog_ac_ct_RANLIB="$ac_ct_RANLIB" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then + ac_cv_prog_ac_ct_RANLIB="ranlib" + echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done +done +IFS=$as_save_IFS + +fi +fi +ac_ct_RANLIB=$ac_cv_prog_ac_ct_RANLIB +if test -n "$ac_ct_RANLIB"; then + { echo "$as_me:$LINENO: result: $ac_ct_RANLIB" >&5 +echo "${ECHO_T}$ac_ct_RANLIB" >&6; } +else + { echo "$as_me:$LINENO: result: no" >&5 +echo "${ECHO_T}no" >&6; } +fi + + if test "x$ac_ct_RANLIB" = x; then + RANLIB=":" + else + case $cross_compiling:$ac_tool_warned in +yes:) +{ echo "$as_me:$LINENO: WARNING: In the future, Autoconf will not detect cross-tools +whose name does not start with the host triplet. If you think this +configuration is useful to you, please write to autoconf@gnu.org." >&5 +echo "$as_me: WARNING: In the future, Autoconf will not detect cross-tools +whose name does not start with the host triplet. If you think this +configuration is useful to you, please write to autoconf@gnu.org." >&2;} +ac_tool_warned=yes ;; +esac + RANLIB=$ac_ct_RANLIB + fi +else + RANLIB="$ac_cv_prog_RANLIB" +fi + +# Extract the first word of "ar", so it can be a program name with args. +set dummy ar; ac_word=$2 +{ echo "$as_me:$LINENO: checking for $ac_word" >&5 +echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6; } +if test "${ac_cv_path_AR+set}" = set; then + echo $ECHO_N "(cached) $ECHO_C" >&6 +else + case $AR in + [\\/]* | ?:[\\/]*) + ac_cv_path_AR="$AR" # Let the user override the test with a path. + ;; + *) + as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then + ac_cv_path_AR="$as_dir/$ac_word$ac_exec_ext" + echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done +done +IFS=$as_save_IFS + + ;; +esac +fi +AR=$ac_cv_path_AR +if test -n "$AR"; then + { echo "$as_me:$LINENO: result: $AR" >&5 +echo "${ECHO_T}$AR" >&6; } +else + { echo "$as_me:$LINENO: result: no" >&5 +echo "${ECHO_T}no" >&6; } +fi + + +# Extract the first word of "cp", so it can be a program name with args. +set dummy cp; ac_word=$2 +{ echo "$as_me:$LINENO: checking for $ac_word" >&5 +echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6; } +if test "${ac_cv_path_CP+set}" = set; then + echo $ECHO_N "(cached) $ECHO_C" >&6 +else + case $CP in + [\\/]* | ?:[\\/]*) + ac_cv_path_CP="$CP" # Let the user override the test with a path. + ;; + *) + as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then + ac_cv_path_CP="$as_dir/$ac_word$ac_exec_ext" + echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done +done +IFS=$as_save_IFS + + ;; +esac +fi +CP=$ac_cv_path_CP +if test -n "$CP"; then + { echo "$as_me:$LINENO: result: $CP" >&5 +echo "${ECHO_T}$CP" >&6; } +else + { echo "$as_me:$LINENO: result: no" >&5 +echo "${ECHO_T}no" >&6; } +fi + + +# Extract the first word of "ln", so it can be a program name with args. +set dummy ln; ac_word=$2 +{ echo "$as_me:$LINENO: checking for $ac_word" >&5 +echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6; } +if test "${ac_cv_path_LN+set}" = set; then + echo $ECHO_N "(cached) $ECHO_C" >&6 +else + case $LN in + [\\/]* | ?:[\\/]*) + ac_cv_path_LN="$LN" # Let the user override the test with a path. + ;; + *) + as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then + ac_cv_path_LN="$as_dir/$ac_word$ac_exec_ext" + echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done +done +IFS=$as_save_IFS + + ;; +esac +fi +LN=$ac_cv_path_LN +if test -n "$LN"; then + { echo "$as_me:$LINENO: result: $LN" >&5 +echo "${ECHO_T}$LN" >&6; } +else + { echo "$as_me:$LINENO: result: no" >&5 +echo "${ECHO_T}no" >&6; } +fi + + +# Extract the first word of "mkdir", so it can be a program name with args. +set dummy mkdir; ac_word=$2 +{ echo "$as_me:$LINENO: checking for $ac_word" >&5 +echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6; } +if test "${ac_cv_path_MKDIR+set}" = set; then + echo $ECHO_N "(cached) $ECHO_C" >&6 +else + case $MKDIR in + [\\/]* | ?:[\\/]*) + ac_cv_path_MKDIR="$MKDIR" # Let the user override the test with a path. + ;; + *) + as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then + ac_cv_path_MKDIR="$as_dir/$ac_word$ac_exec_ext" + echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done +done +IFS=$as_save_IFS + + ;; +esac +fi +MKDIR=$ac_cv_path_MKDIR +if test -n "$MKDIR"; then + { echo "$as_me:$LINENO: result: $MKDIR" >&5 +echo "${ECHO_T}$MKDIR" >&6; } +else + { echo "$as_me:$LINENO: result: no" >&5 +echo "${ECHO_T}no" >&6; } +fi + + +# Extract the first word of "rm", so it can be a program name with args. +set dummy rm; ac_word=$2 +{ echo "$as_me:$LINENO: checking for $ac_word" >&5 +echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6; } +if test "${ac_cv_path_RM+set}" = set; then + echo $ECHO_N "(cached) $ECHO_C" >&6 +else + case $RM in + [\\/]* | ?:[\\/]*) + ac_cv_path_RM="$RM" # Let the user override the test with a path. + ;; + *) + as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then + ac_cv_path_RM="$as_dir/$ac_word$ac_exec_ext" + echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done +done +IFS=$as_save_IFS + + ;; +esac +fi +RM=$ac_cv_path_RM +if test -n "$RM"; then + { echo "$as_me:$LINENO: result: $RM" >&5 +echo "${ECHO_T}$RM" >&6; } +else + { echo "$as_me:$LINENO: result: no" >&5 +echo "${ECHO_T}no" >&6; } +fi + + + +case "$uname" in + Darwin* | *BSD*) + ARFLAGS="-rcv" + ;; + *) + ARFLAGS="crvs" + ;; +esac + + + + +{ echo "$as_me:$LINENO: checking for inline" >&5 +echo $ECHO_N "checking for inline... $ECHO_C" >&6; } +if test "${ac_cv_c_inline+set}" = set; then + echo $ECHO_N "(cached) $ECHO_C" >&6 +else + ac_cv_c_inline=no +for ac_kw in inline __inline__ __inline; do + cat >conftest.$ac_ext <<_ACEOF +/* confdefs.h. */ +_ACEOF +cat confdefs.h >>conftest.$ac_ext +cat >>conftest.$ac_ext <<_ACEOF +/* end confdefs.h. */ +#ifndef __cplusplus +typedef int foo_t; +static $ac_kw foo_t static_foo () {return 0; } +$ac_kw foo_t foo () {return 0; } +#endif + +_ACEOF +rm -f conftest.$ac_objext +if { (ac_try="$ac_compile" +case "(($ac_try" in + *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; + *) ac_try_echo=$ac_try;; +esac +eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5 + (eval "$ac_compile") 2>conftest.er1 + ac_status=$? + grep -v '^ *+' conftest.er1 >conftest.err + rm -f conftest.er1 + cat conftest.err >&5 + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); } && { + test -z "$ac_c_werror_flag" || + test ! -s conftest.err + } && test -s conftest.$ac_objext; then + ac_cv_c_inline=$ac_kw +else + echo "$as_me: failed program was:" >&5 +sed 's/^/| /' conftest.$ac_ext >&5 + + +fi + +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext + test "$ac_cv_c_inline" != no && break +done + +fi +{ echo "$as_me:$LINENO: result: $ac_cv_c_inline" >&5 +echo "${ECHO_T}$ac_cv_c_inline" >&6; } + + +case $ac_cv_c_inline in + inline | yes) ;; + *) + case $ac_cv_c_inline in + no) ac_val=;; + *) ac_val=$ac_cv_c_inline;; + esac + cat >>confdefs.h <<_ACEOF +#ifndef __cplusplus +#define inline $ac_val +#endif +_ACEOF + ;; +esac + + +if test "x$use_ansi" != xyes; then + +for ac_func in strdup +do +as_ac_var=`echo "ac_cv_func_$ac_func" | $as_tr_sh` +{ echo "$as_me:$LINENO: checking for $ac_func" >&5 +echo $ECHO_N "checking for $ac_func... $ECHO_C" >&6; } +if { as_var=$as_ac_var; eval "test \"\${$as_var+set}\" = set"; }; then + echo $ECHO_N "(cached) $ECHO_C" >&6 +else + cat >conftest.$ac_ext <<_ACEOF +/* confdefs.h. */ +_ACEOF +cat confdefs.h >>conftest.$ac_ext +cat >>conftest.$ac_ext <<_ACEOF +/* end confdefs.h. */ +/* Define $ac_func to an innocuous variant, in case declares $ac_func. + For example, HP-UX 11i declares gettimeofday. */ +#define $ac_func innocuous_$ac_func + +/* System header to define __stub macros and hopefully few prototypes, + which can conflict with char $ac_func (); below. + Prefer to if __STDC__ is defined, since + exists even on freestanding compilers. */ + +#ifdef __STDC__ +# include +#else +# include +#endif + +#undef $ac_func + +/* Override any GCC internal prototype to avoid an error. + Use char because int might match the return type of a GCC + builtin and then its argument prototype would still apply. */ +#ifdef __cplusplus +extern "C" +#endif +char $ac_func (); +/* The GNU C library defines this for functions which it implements + to always fail with ENOSYS. Some functions are actually named + something starting with __ and the normal name is an alias. */ +#if defined __stub_$ac_func || defined __stub___$ac_func +choke me +#endif + +int +main () +{ +return $ac_func (); + ; + return 0; +} +_ACEOF +rm -f conftest.$ac_objext conftest$ac_exeext +if { (ac_try="$ac_link" +case "(($ac_try" in + *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; + *) ac_try_echo=$ac_try;; +esac +eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5 + (eval "$ac_link") 2>conftest.er1 + ac_status=$? + grep -v '^ *+' conftest.er1 >conftest.err + rm -f conftest.er1 + cat conftest.err >&5 + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); } && { + test -z "$ac_c_werror_flag" || + test ! -s conftest.err + } && test -s conftest$ac_exeext && + $as_test_x conftest$ac_exeext; then + eval "$as_ac_var=yes" +else + echo "$as_me: failed program was:" >&5 +sed 's/^/| /' conftest.$ac_ext >&5 + + eval "$as_ac_var=no" +fi + +rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \ + conftest$ac_exeext conftest.$ac_ext +fi +ac_res=`eval echo '${'$as_ac_var'}'` + { echo "$as_me:$LINENO: result: $ac_res" >&5 +echo "${ECHO_T}$ac_res" >&6; } +if test `eval echo '${'$as_ac_var'}'` = yes; then + cat >>confdefs.h <<_ACEOF +#define `echo "HAVE_$ac_func" | $as_tr_cpp` 1 +_ACEOF + +fi +done + +fi + +if test "x$use_vsnprintf" != xyes; then + + +for ac_func in snprintf vsnprintf +do +as_ac_var=`echo "ac_cv_func_$ac_func" | $as_tr_sh` +{ echo "$as_me:$LINENO: checking for $ac_func" >&5 +echo $ECHO_N "checking for $ac_func... $ECHO_C" >&6; } +if { as_var=$as_ac_var; eval "test \"\${$as_var+set}\" = set"; }; then + echo $ECHO_N "(cached) $ECHO_C" >&6 +else + cat >conftest.$ac_ext <<_ACEOF +/* confdefs.h. */ +_ACEOF +cat confdefs.h >>conftest.$ac_ext +cat >>conftest.$ac_ext <<_ACEOF +/* end confdefs.h. */ +/* Define $ac_func to an innocuous variant, in case declares $ac_func. + For example, HP-UX 11i declares gettimeofday. */ +#define $ac_func innocuous_$ac_func + +/* System header to define __stub macros and hopefully few prototypes, + which can conflict with char $ac_func (); below. + Prefer to if __STDC__ is defined, since + exists even on freestanding compilers. */ + +#ifdef __STDC__ +# include +#else +# include +#endif + +#undef $ac_func + +/* Override any GCC internal prototype to avoid an error. + Use char because int might match the return type of a GCC + builtin and then its argument prototype would still apply. */ +#ifdef __cplusplus +extern "C" +#endif +char $ac_func (); +/* The GNU C library defines this for functions which it implements + to always fail with ENOSYS. Some functions are actually named + something starting with __ and the normal name is an alias. */ +#if defined __stub_$ac_func || defined __stub___$ac_func +choke me +#endif + +int +main () +{ +return $ac_func (); + ; + return 0; +} +_ACEOF +rm -f conftest.$ac_objext conftest$ac_exeext +if { (ac_try="$ac_link" +case "(($ac_try" in + *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; + *) ac_try_echo=$ac_try;; +esac +eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5 + (eval "$ac_link") 2>conftest.er1 + ac_status=$? + grep -v '^ *+' conftest.er1 >conftest.err + rm -f conftest.er1 + cat conftest.err >&5 + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); } && { + test -z "$ac_c_werror_flag" || + test ! -s conftest.err + } && test -s conftest$ac_exeext && + $as_test_x conftest$ac_exeext; then + eval "$as_ac_var=yes" +else + echo "$as_me: failed program was:" >&5 +sed 's/^/| /' conftest.$ac_ext >&5 + + eval "$as_ac_var=no" +fi + +rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \ + conftest$ac_exeext conftest.$ac_ext +fi +ac_res=`eval echo '${'$as_ac_var'}'` + { echo "$as_me:$LINENO: result: $ac_res" >&5 +echo "${ECHO_T}$ac_res" >&6; } +if test `eval echo '${'$as_ac_var'}'` = yes; then + cat >>confdefs.h <<_ACEOF +#define `echo "HAVE_$ac_func" | $as_tr_cpp` 1 +_ACEOF + +fi +done + +fi + +{ echo "$as_me:$LINENO: checking for long long int" >&5 +echo $ECHO_N "checking for long long int... $ECHO_C" >&6; } +if test "${ac_cv_c_long_long+set}" = set; then + echo $ECHO_N "(cached) $ECHO_C" >&6 +else + if test "$GCC" = yes; then + ac_cv_c_long_long=yes + else + cat >conftest.$ac_ext <<_ACEOF +/* confdefs.h. */ +_ACEOF +cat confdefs.h >>conftest.$ac_ext +cat >>conftest.$ac_ext <<_ACEOF +/* end confdefs.h. */ + +int +main () +{ +long long int i; + ; + return 0; +} +_ACEOF +rm -f conftest.$ac_objext +if { (ac_try="$ac_compile" +case "(($ac_try" in + *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; + *) ac_try_echo=$ac_try;; +esac +eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5 + (eval "$ac_compile") 2>conftest.er1 + ac_status=$? + grep -v '^ *+' conftest.er1 >conftest.err + rm -f conftest.er1 + cat conftest.err >&5 + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); } && { + test -z "$ac_c_werror_flag" || + test ! -s conftest.err + } && test -s conftest.$ac_objext; then + ac_cv_c_long_long=yes +else + echo "$as_me: failed program was:" >&5 +sed 's/^/| /' conftest.$ac_ext >&5 + + ac_cv_c_long_long=no +fi + +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext + fi +fi +{ echo "$as_me:$LINENO: result: $ac_cv_c_long_long" >&5 +echo "${ECHO_T}$ac_cv_c_long_long" >&6; } + +if test $ac_cv_c_long_long = yes; then + cat >>confdefs.h <<\_ACEOF +#define HAVE_LONG_LONG 1 +_ACEOF + +fi + +# Check whether --enable-threads was given. +if test "${enable_threads+set}" = set; then + enableval=$enable_threads; +fi + + +have_pthread=no +PTHREAD_FLAGS="" +PTHREAD_LIBS="" + +if test "x$enable_threads" != xno; then + ac_ext=c +ac_cpp='$CPP $CPPFLAGS' +ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5' +ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' +ac_compiler_gnu=$ac_cv_c_compiler_gnu +{ echo "$as_me:$LINENO: checking how to run the C preprocessor" >&5 +echo $ECHO_N "checking how to run the C preprocessor... $ECHO_C" >&6; } +# On Suns, sometimes $CPP names a directory. +if test -n "$CPP" && test -d "$CPP"; then + CPP= +fi +if test -z "$CPP"; then + if test "${ac_cv_prog_CPP+set}" = set; then + echo $ECHO_N "(cached) $ECHO_C" >&6 +else + # Double quotes because CPP needs to be expanded + for CPP in "$CC -E" "$CC -E -traditional-cpp" "/lib/cpp" + do + ac_preproc_ok=false +for ac_c_preproc_warn_flag in '' yes +do + # Use a header file that comes with gcc, so configuring glibc + # with a fresh cross-compiler works. + # Prefer to if __STDC__ is defined, since + # exists even on freestanding compilers. + # On the NeXT, cc -E runs the code through the compiler's parser, + # not just through cpp. "Syntax error" is here to catch this case. + cat >conftest.$ac_ext <<_ACEOF +/* confdefs.h. */ +_ACEOF +cat confdefs.h >>conftest.$ac_ext +cat >>conftest.$ac_ext <<_ACEOF +/* end confdefs.h. */ +#ifdef __STDC__ +# include +#else +# include +#endif + Syntax error +_ACEOF +if { (ac_try="$ac_cpp conftest.$ac_ext" +case "(($ac_try" in + *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; + *) ac_try_echo=$ac_try;; +esac +eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5 + (eval "$ac_cpp conftest.$ac_ext") 2>conftest.er1 + ac_status=$? + grep -v '^ *+' conftest.er1 >conftest.err + rm -f conftest.er1 + cat conftest.err >&5 + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); } >/dev/null && { + test -z "$ac_c_preproc_warn_flag$ac_c_werror_flag" || + test ! -s conftest.err + }; then + : +else + echo "$as_me: failed program was:" >&5 +sed 's/^/| /' conftest.$ac_ext >&5 + + # Broken: fails on valid input. +continue +fi + +rm -f conftest.err conftest.$ac_ext + + # OK, works on sane cases. Now check whether nonexistent headers + # can be detected and how. + cat >conftest.$ac_ext <<_ACEOF +/* confdefs.h. */ +_ACEOF +cat confdefs.h >>conftest.$ac_ext +cat >>conftest.$ac_ext <<_ACEOF +/* end confdefs.h. */ +#include +_ACEOF +if { (ac_try="$ac_cpp conftest.$ac_ext" +case "(($ac_try" in + *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; + *) ac_try_echo=$ac_try;; +esac +eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5 + (eval "$ac_cpp conftest.$ac_ext") 2>conftest.er1 + ac_status=$? + grep -v '^ *+' conftest.er1 >conftest.err + rm -f conftest.er1 + cat conftest.err >&5 + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); } >/dev/null && { + test -z "$ac_c_preproc_warn_flag$ac_c_werror_flag" || + test ! -s conftest.err + }; then + # Broken: success on invalid input. +continue +else + echo "$as_me: failed program was:" >&5 +sed 's/^/| /' conftest.$ac_ext >&5 + + # Passes both tests. +ac_preproc_ok=: +break +fi + +rm -f conftest.err conftest.$ac_ext + +done +# Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped. +rm -f conftest.err conftest.$ac_ext +if $ac_preproc_ok; then + break +fi + + done + ac_cv_prog_CPP=$CPP + +fi + CPP=$ac_cv_prog_CPP +else + ac_cv_prog_CPP=$CPP +fi +{ echo "$as_me:$LINENO: result: $CPP" >&5 +echo "${ECHO_T}$CPP" >&6; } +ac_preproc_ok=false +for ac_c_preproc_warn_flag in '' yes +do + # Use a header file that comes with gcc, so configuring glibc + # with a fresh cross-compiler works. + # Prefer to if __STDC__ is defined, since + # exists even on freestanding compilers. + # On the NeXT, cc -E runs the code through the compiler's parser, + # not just through cpp. "Syntax error" is here to catch this case. + cat >conftest.$ac_ext <<_ACEOF +/* confdefs.h. */ +_ACEOF +cat confdefs.h >>conftest.$ac_ext +cat >>conftest.$ac_ext <<_ACEOF +/* end confdefs.h. */ +#ifdef __STDC__ +# include +#else +# include +#endif + Syntax error +_ACEOF +if { (ac_try="$ac_cpp conftest.$ac_ext" +case "(($ac_try" in + *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; + *) ac_try_echo=$ac_try;; +esac +eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5 + (eval "$ac_cpp conftest.$ac_ext") 2>conftest.er1 + ac_status=$? + grep -v '^ *+' conftest.er1 >conftest.err + rm -f conftest.er1 + cat conftest.err >&5 + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); } >/dev/null && { + test -z "$ac_c_preproc_warn_flag$ac_c_werror_flag" || + test ! -s conftest.err + }; then + : +else + echo "$as_me: failed program was:" >&5 +sed 's/^/| /' conftest.$ac_ext >&5 + + # Broken: fails on valid input. +continue +fi + +rm -f conftest.err conftest.$ac_ext + + # OK, works on sane cases. Now check whether nonexistent headers + # can be detected and how. + cat >conftest.$ac_ext <<_ACEOF +/* confdefs.h. */ +_ACEOF +cat confdefs.h >>conftest.$ac_ext +cat >>conftest.$ac_ext <<_ACEOF +/* end confdefs.h. */ +#include +_ACEOF +if { (ac_try="$ac_cpp conftest.$ac_ext" +case "(($ac_try" in + *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; + *) ac_try_echo=$ac_try;; +esac +eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5 + (eval "$ac_cpp conftest.$ac_ext") 2>conftest.er1 + ac_status=$? + grep -v '^ *+' conftest.er1 >conftest.err + rm -f conftest.er1 + cat conftest.err >&5 + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); } >/dev/null && { + test -z "$ac_c_preproc_warn_flag$ac_c_werror_flag" || + test ! -s conftest.err + }; then + # Broken: success on invalid input. +continue +else + echo "$as_me: failed program was:" >&5 +sed 's/^/| /' conftest.$ac_ext >&5 + + # Passes both tests. +ac_preproc_ok=: +break +fi + +rm -f conftest.err conftest.$ac_ext + +done +# Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped. +rm -f conftest.err conftest.$ac_ext +if $ac_preproc_ok; then + : +else + { { echo "$as_me:$LINENO: error: C preprocessor \"$CPP\" fails sanity check +See \`config.log' for more details." >&5 +echo "$as_me: error: C preprocessor \"$CPP\" fails sanity check +See \`config.log' for more details." >&2;} + { (exit 1); exit 1; }; } +fi + +ac_ext=c +ac_cpp='$CPP $CPPFLAGS' +ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5' +ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' +ac_compiler_gnu=$ac_cv_c_compiler_gnu + + +{ echo "$as_me:$LINENO: checking for grep that handles long lines and -e" >&5 +echo $ECHO_N "checking for grep that handles long lines and -e... $ECHO_C" >&6; } +if test "${ac_cv_path_GREP+set}" = set; then + echo $ECHO_N "(cached) $ECHO_C" >&6 +else + # Extract the first word of "grep ggrep" to use in msg output +if test -z "$GREP"; then +set dummy grep ggrep; ac_prog_name=$2 +if test "${ac_cv_path_GREP+set}" = set; then + echo $ECHO_N "(cached) $ECHO_C" >&6 +else + ac_path_GREP_found=false +# Loop through the user's path and test for each of PROGNAME-LIST +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH$PATH_SEPARATOR/usr/xpg4/bin +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_prog in grep ggrep; do + for ac_exec_ext in '' $ac_executable_extensions; do + ac_path_GREP="$as_dir/$ac_prog$ac_exec_ext" + { test -f "$ac_path_GREP" && $as_test_x "$ac_path_GREP"; } || continue + # Check for GNU ac_path_GREP and select it if it is found. + # Check for GNU $ac_path_GREP +case `"$ac_path_GREP" --version 2>&1` in +*GNU*) + ac_cv_path_GREP="$ac_path_GREP" ac_path_GREP_found=:;; +*) + ac_count=0 + echo $ECHO_N "0123456789$ECHO_C" >"conftest.in" + while : + do + cat "conftest.in" "conftest.in" >"conftest.tmp" + mv "conftest.tmp" "conftest.in" + cp "conftest.in" "conftest.nl" + echo 'GREP' >> "conftest.nl" + "$ac_path_GREP" -e 'GREP$' -e '-(cannot match)-' < "conftest.nl" >"conftest.out" 2>/dev/null || break + diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break + ac_count=`expr $ac_count + 1` + if test $ac_count -gt ${ac_path_GREP_max-0}; then + # Best one so far, save it but keep looking for a better one + ac_cv_path_GREP="$ac_path_GREP" + ac_path_GREP_max=$ac_count + fi + # 10*(2^10) chars as input seems more than enough + test $ac_count -gt 10 && break + done + rm -f conftest.in conftest.tmp conftest.nl conftest.out;; +esac + + + $ac_path_GREP_found && break 3 + done +done + +done +IFS=$as_save_IFS + + +fi + +GREP="$ac_cv_path_GREP" +if test -z "$GREP"; then + { { echo "$as_me:$LINENO: error: no acceptable $ac_prog_name could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" >&5 +echo "$as_me: error: no acceptable $ac_prog_name could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" >&2;} + { (exit 1); exit 1; }; } +fi + +else + ac_cv_path_GREP=$GREP +fi + + +fi +{ echo "$as_me:$LINENO: result: $ac_cv_path_GREP" >&5 +echo "${ECHO_T}$ac_cv_path_GREP" >&6; } + GREP="$ac_cv_path_GREP" + + +{ echo "$as_me:$LINENO: checking for egrep" >&5 +echo $ECHO_N "checking for egrep... $ECHO_C" >&6; } +if test "${ac_cv_path_EGREP+set}" = set; then + echo $ECHO_N "(cached) $ECHO_C" >&6 +else + if echo a | $GREP -E '(a|b)' >/dev/null 2>&1 + then ac_cv_path_EGREP="$GREP -E" + else + # Extract the first word of "egrep" to use in msg output +if test -z "$EGREP"; then +set dummy egrep; ac_prog_name=$2 +if test "${ac_cv_path_EGREP+set}" = set; then + echo $ECHO_N "(cached) $ECHO_C" >&6 +else + ac_path_EGREP_found=false +# Loop through the user's path and test for each of PROGNAME-LIST +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH$PATH_SEPARATOR/usr/xpg4/bin +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_prog in egrep; do + for ac_exec_ext in '' $ac_executable_extensions; do + ac_path_EGREP="$as_dir/$ac_prog$ac_exec_ext" + { test -f "$ac_path_EGREP" && $as_test_x "$ac_path_EGREP"; } || continue + # Check for GNU ac_path_EGREP and select it if it is found. + # Check for GNU $ac_path_EGREP +case `"$ac_path_EGREP" --version 2>&1` in +*GNU*) + ac_cv_path_EGREP="$ac_path_EGREP" ac_path_EGREP_found=:;; +*) + ac_count=0 + echo $ECHO_N "0123456789$ECHO_C" >"conftest.in" + while : + do + cat "conftest.in" "conftest.in" >"conftest.tmp" + mv "conftest.tmp" "conftest.in" + cp "conftest.in" "conftest.nl" + echo 'EGREP' >> "conftest.nl" + "$ac_path_EGREP" 'EGREP$' < "conftest.nl" >"conftest.out" 2>/dev/null || break + diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break + ac_count=`expr $ac_count + 1` + if test $ac_count -gt ${ac_path_EGREP_max-0}; then + # Best one so far, save it but keep looking for a better one + ac_cv_path_EGREP="$ac_path_EGREP" + ac_path_EGREP_max=$ac_count + fi + # 10*(2^10) chars as input seems more than enough + test $ac_count -gt 10 && break + done + rm -f conftest.in conftest.tmp conftest.nl conftest.out;; +esac + + + $ac_path_EGREP_found && break 3 + done +done + +done +IFS=$as_save_IFS + + +fi + +EGREP="$ac_cv_path_EGREP" +if test -z "$EGREP"; then + { { echo "$as_me:$LINENO: error: no acceptable $ac_prog_name could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" >&5 +echo "$as_me: error: no acceptable $ac_prog_name could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" >&2;} + { (exit 1); exit 1; }; } +fi + +else + ac_cv_path_EGREP=$EGREP +fi + + + fi +fi +{ echo "$as_me:$LINENO: result: $ac_cv_path_EGREP" >&5 +echo "${ECHO_T}$ac_cv_path_EGREP" >&6; } + EGREP="$ac_cv_path_EGREP" + + +{ echo "$as_me:$LINENO: checking for ANSI C header files" >&5 +echo $ECHO_N "checking for ANSI C header files... $ECHO_C" >&6; } +if test "${ac_cv_header_stdc+set}" = set; then + echo $ECHO_N "(cached) $ECHO_C" >&6 +else + cat >conftest.$ac_ext <<_ACEOF +/* confdefs.h. */ +_ACEOF +cat confdefs.h >>conftest.$ac_ext +cat >>conftest.$ac_ext <<_ACEOF +/* end confdefs.h. */ +#include +#include +#include +#include + +int +main () +{ + + ; + return 0; +} +_ACEOF +rm -f conftest.$ac_objext +if { (ac_try="$ac_compile" +case "(($ac_try" in + *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; + *) ac_try_echo=$ac_try;; +esac +eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5 + (eval "$ac_compile") 2>conftest.er1 + ac_status=$? + grep -v '^ *+' conftest.er1 >conftest.err + rm -f conftest.er1 + cat conftest.err >&5 + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); } && { + test -z "$ac_c_werror_flag" || + test ! -s conftest.err + } && test -s conftest.$ac_objext; then + ac_cv_header_stdc=yes +else + echo "$as_me: failed program was:" >&5 +sed 's/^/| /' conftest.$ac_ext >&5 + + ac_cv_header_stdc=no +fi + +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext + +if test $ac_cv_header_stdc = yes; then + # SunOS 4.x string.h does not declare mem*, contrary to ANSI. + cat >conftest.$ac_ext <<_ACEOF +/* confdefs.h. */ +_ACEOF +cat confdefs.h >>conftest.$ac_ext +cat >>conftest.$ac_ext <<_ACEOF +/* end confdefs.h. */ +#include + +_ACEOF +if (eval "$ac_cpp conftest.$ac_ext") 2>&5 | + $EGREP "memchr" >/dev/null 2>&1; then + : +else + ac_cv_header_stdc=no +fi +rm -f -r conftest* + +fi + +if test $ac_cv_header_stdc = yes; then + # ISC 2.0.2 stdlib.h does not declare free, contrary to ANSI. + cat >conftest.$ac_ext <<_ACEOF +/* confdefs.h. */ +_ACEOF +cat confdefs.h >>conftest.$ac_ext +cat >>conftest.$ac_ext <<_ACEOF +/* end confdefs.h. */ +#include + +_ACEOF +if (eval "$ac_cpp conftest.$ac_ext") 2>&5 | + $EGREP "free" >/dev/null 2>&1; then + : +else + ac_cv_header_stdc=no +fi +rm -f -r conftest* + +fi + +if test $ac_cv_header_stdc = yes; then + # /bin/cc in Irix-4.0.5 gets non-ANSI ctype macros unless using -ansi. + if test "$cross_compiling" = yes; then + : +else + cat >conftest.$ac_ext <<_ACEOF +/* confdefs.h. */ +_ACEOF +cat confdefs.h >>conftest.$ac_ext +cat >>conftest.$ac_ext <<_ACEOF +/* end confdefs.h. */ +#include +#include +#if ((' ' & 0x0FF) == 0x020) +# define ISLOWER(c) ('a' <= (c) && (c) <= 'z') +# define TOUPPER(c) (ISLOWER(c) ? 'A' + ((c) - 'a') : (c)) +#else +# define ISLOWER(c) \ + (('a' <= (c) && (c) <= 'i') \ + || ('j' <= (c) && (c) <= 'r') \ + || ('s' <= (c) && (c) <= 'z')) +# define TOUPPER(c) (ISLOWER(c) ? ((c) | 0x40) : (c)) +#endif + +#define XOR(e, f) (((e) && !(f)) || (!(e) && (f))) +int +main () +{ + int i; + for (i = 0; i < 256; i++) + if (XOR (islower (i), ISLOWER (i)) + || toupper (i) != TOUPPER (i)) + return 2; + return 0; +} +_ACEOF +rm -f conftest$ac_exeext +if { (ac_try="$ac_link" +case "(($ac_try" in + *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; + *) ac_try_echo=$ac_try;; +esac +eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5 + (eval "$ac_link") 2>&5 + ac_status=$? + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); } && { ac_try='./conftest$ac_exeext' + { (case "(($ac_try" in + *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; + *) ac_try_echo=$ac_try;; +esac +eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5 + (eval "$ac_try") 2>&5 + ac_status=$? + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); }; }; then + : +else + echo "$as_me: program exited with status $ac_status" >&5 +echo "$as_me: failed program was:" >&5 +sed 's/^/| /' conftest.$ac_ext >&5 + +( exit $ac_status ) +ac_cv_header_stdc=no +fi +rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext +fi + + +fi +fi +{ echo "$as_me:$LINENO: result: $ac_cv_header_stdc" >&5 +echo "${ECHO_T}$ac_cv_header_stdc" >&6; } +if test $ac_cv_header_stdc = yes; then + +cat >>confdefs.h <<\_ACEOF +#define STDC_HEADERS 1 +_ACEOF + +fi + +# On IRIX 5.3, sys/types and inttypes.h are conflicting. + + + + + + + + + +for ac_header in sys/types.h sys/stat.h stdlib.h string.h memory.h strings.h \ + inttypes.h stdint.h unistd.h +do +as_ac_Header=`echo "ac_cv_header_$ac_header" | $as_tr_sh` +{ echo "$as_me:$LINENO: checking for $ac_header" >&5 +echo $ECHO_N "checking for $ac_header... $ECHO_C" >&6; } +if { as_var=$as_ac_Header; eval "test \"\${$as_var+set}\" = set"; }; then + echo $ECHO_N "(cached) $ECHO_C" >&6 +else + cat >conftest.$ac_ext <<_ACEOF +/* confdefs.h. */ +_ACEOF +cat confdefs.h >>conftest.$ac_ext +cat >>conftest.$ac_ext <<_ACEOF +/* end confdefs.h. */ +$ac_includes_default + +#include <$ac_header> +_ACEOF +rm -f conftest.$ac_objext +if { (ac_try="$ac_compile" +case "(($ac_try" in + *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; + *) ac_try_echo=$ac_try;; +esac +eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5 + (eval "$ac_compile") 2>conftest.er1 + ac_status=$? + grep -v '^ *+' conftest.er1 >conftest.err + rm -f conftest.er1 + cat conftest.err >&5 + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); } && { + test -z "$ac_c_werror_flag" || + test ! -s conftest.err + } && test -s conftest.$ac_objext; then + eval "$as_ac_Header=yes" +else + echo "$as_me: failed program was:" >&5 +sed 's/^/| /' conftest.$ac_ext >&5 + + eval "$as_ac_Header=no" +fi + +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext +fi +ac_res=`eval echo '${'$as_ac_Header'}'` + { echo "$as_me:$LINENO: result: $ac_res" >&5 +echo "${ECHO_T}$ac_res" >&6; } +if test `eval echo '${'$as_ac_Header'}'` = yes; then + cat >>confdefs.h <<_ACEOF +#define `echo "HAVE_$ac_header" | $as_tr_cpp` 1 +_ACEOF + +fi + +done + + +if test "${ac_cv_header_pthread_h+set}" = set; then + { echo "$as_me:$LINENO: checking for pthread.h" >&5 +echo $ECHO_N "checking for pthread.h... $ECHO_C" >&6; } +if test "${ac_cv_header_pthread_h+set}" = set; then + echo $ECHO_N "(cached) $ECHO_C" >&6 +fi +{ echo "$as_me:$LINENO: result: $ac_cv_header_pthread_h" >&5 +echo "${ECHO_T}$ac_cv_header_pthread_h" >&6; } +else + # Is the header compilable? +{ echo "$as_me:$LINENO: checking pthread.h usability" >&5 +echo $ECHO_N "checking pthread.h usability... $ECHO_C" >&6; } +cat >conftest.$ac_ext <<_ACEOF +/* confdefs.h. */ +_ACEOF +cat confdefs.h >>conftest.$ac_ext +cat >>conftest.$ac_ext <<_ACEOF +/* end confdefs.h. */ +$ac_includes_default +#include +_ACEOF +rm -f conftest.$ac_objext +if { (ac_try="$ac_compile" +case "(($ac_try" in + *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; + *) ac_try_echo=$ac_try;; +esac +eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5 + (eval "$ac_compile") 2>conftest.er1 + ac_status=$? + grep -v '^ *+' conftest.er1 >conftest.err + rm -f conftest.er1 + cat conftest.err >&5 + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); } && { + test -z "$ac_c_werror_flag" || + test ! -s conftest.err + } && test -s conftest.$ac_objext; then + ac_header_compiler=yes +else + echo "$as_me: failed program was:" >&5 +sed 's/^/| /' conftest.$ac_ext >&5 + + ac_header_compiler=no +fi + +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext +{ echo "$as_me:$LINENO: result: $ac_header_compiler" >&5 +echo "${ECHO_T}$ac_header_compiler" >&6; } + +# Is the header present? +{ echo "$as_me:$LINENO: checking pthread.h presence" >&5 +echo $ECHO_N "checking pthread.h presence... $ECHO_C" >&6; } +cat >conftest.$ac_ext <<_ACEOF +/* confdefs.h. */ +_ACEOF +cat confdefs.h >>conftest.$ac_ext +cat >>conftest.$ac_ext <<_ACEOF +/* end confdefs.h. */ +#include +_ACEOF +if { (ac_try="$ac_cpp conftest.$ac_ext" +case "(($ac_try" in + *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; + *) ac_try_echo=$ac_try;; +esac +eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5 + (eval "$ac_cpp conftest.$ac_ext") 2>conftest.er1 + ac_status=$? + grep -v '^ *+' conftest.er1 >conftest.err + rm -f conftest.er1 + cat conftest.err >&5 + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); } >/dev/null && { + test -z "$ac_c_preproc_warn_flag$ac_c_werror_flag" || + test ! -s conftest.err + }; then + ac_header_preproc=yes +else + echo "$as_me: failed program was:" >&5 +sed 's/^/| /' conftest.$ac_ext >&5 + + ac_header_preproc=no +fi + +rm -f conftest.err conftest.$ac_ext +{ echo "$as_me:$LINENO: result: $ac_header_preproc" >&5 +echo "${ECHO_T}$ac_header_preproc" >&6; } + +# So? What about this header? +case $ac_header_compiler:$ac_header_preproc:$ac_c_preproc_warn_flag in + yes:no: ) + { echo "$as_me:$LINENO: WARNING: pthread.h: accepted by the compiler, rejected by the preprocessor!" >&5 +echo "$as_me: WARNING: pthread.h: accepted by the compiler, rejected by the preprocessor!" >&2;} + { echo "$as_me:$LINENO: WARNING: pthread.h: proceeding with the compiler's result" >&5 +echo "$as_me: WARNING: pthread.h: proceeding with the compiler's result" >&2;} + ac_header_preproc=yes + ;; + no:yes:* ) + { echo "$as_me:$LINENO: WARNING: pthread.h: present but cannot be compiled" >&5 +echo "$as_me: WARNING: pthread.h: present but cannot be compiled" >&2;} + { echo "$as_me:$LINENO: WARNING: pthread.h: check for missing prerequisite headers?" >&5 +echo "$as_me: WARNING: pthread.h: check for missing prerequisite headers?" >&2;} + { echo "$as_me:$LINENO: WARNING: pthread.h: see the Autoconf documentation" >&5 +echo "$as_me: WARNING: pthread.h: see the Autoconf documentation" >&2;} + { echo "$as_me:$LINENO: WARNING: pthread.h: section \"Present But Cannot Be Compiled\"" >&5 +echo "$as_me: WARNING: pthread.h: section \"Present But Cannot Be Compiled\"" >&2;} + { echo "$as_me:$LINENO: WARNING: pthread.h: proceeding with the preprocessor's result" >&5 +echo "$as_me: WARNING: pthread.h: proceeding with the preprocessor's result" >&2;} + { echo "$as_me:$LINENO: WARNING: pthread.h: in the future, the compiler will take precedence" >&5 +echo "$as_me: WARNING: pthread.h: in the future, the compiler will take precedence" >&2;} + + ;; +esac +{ echo "$as_me:$LINENO: checking for pthread.h" >&5 +echo $ECHO_N "checking for pthread.h... $ECHO_C" >&6; } +if test "${ac_cv_header_pthread_h+set}" = set; then + echo $ECHO_N "(cached) $ECHO_C" >&6 +else + ac_cv_header_pthread_h=$ac_header_preproc +fi +{ echo "$as_me:$LINENO: result: $ac_cv_header_pthread_h" >&5 +echo "${ECHO_T}$ac_cv_header_pthread_h" >&6; } + +fi +if test $ac_cv_header_pthread_h = yes; then + cat >>confdefs.h <<\_ACEOF +#define HAVE_PTHREAD_H 1 +_ACEOF + +fi + + + + if test x$ac_cv_header_pthread_h = xyes; then + for flag in -lpthreads -lpthread -pthread; do + { echo "$as_me:$LINENO: checking for pthread_create using $flag" >&5 +echo $ECHO_N "checking for pthread_create using $flag... $ECHO_C" >&6; } + SAVELIBS="$LIBS" + LIBS="$flag $LIBS" + cat >conftest.$ac_ext <<_ACEOF +/* confdefs.h. */ +_ACEOF +cat confdefs.h >>conftest.$ac_ext +cat >>conftest.$ac_ext <<_ACEOF +/* end confdefs.h. */ +#include +int +main () +{ +pthread_create(0, 0, 0, 0); + ; + return 0; +} +_ACEOF +rm -f conftest.$ac_objext conftest$ac_exeext +if { (ac_try="$ac_link" +case "(($ac_try" in + *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; + *) ac_try_echo=$ac_try;; +esac +eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5 + (eval "$ac_link") 2>conftest.er1 + ac_status=$? + grep -v '^ *+' conftest.er1 >conftest.err + rm -f conftest.er1 + cat conftest.err >&5 + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); } && { + test -z "$ac_c_werror_flag" || + test ! -s conftest.err + } && test -s conftest$ac_exeext && + $as_test_x conftest$ac_exeext; then + have_pthread=yes +else + echo "$as_me: failed program was:" >&5 +sed 's/^/| /' conftest.$ac_ext >&5 + + +fi + +rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \ + conftest$ac_exeext conftest.$ac_ext + { echo "$as_me:$LINENO: result: $have_pthread" >&5 +echo "${ECHO_T}$have_pthread" >&6; } + LIBS="$SAVELIBS" + + if test $have_pthread = yes; then + PTHREAD_FLAGS="-D_THREAD_SAFE -D_REENTRANT" + PTHREAD_LIBS="$flag" + + # Solaris requires -D_POSIX_PTHREAD_SEMANTICS to + # be POSIX-compliant... :( + if test $uname = SunOS; then + PTHREAD_FLAGS="$PTHREAD_FLAGS -D_POSIX_PTHREAD_SEMANTICS" + fi + break + fi + done + fi +fi + + + + +DSO="${DSO:=:}" +DSOFLAGS="${DSOFLAGS:=}" + +# Check whether --enable-shared was given. +if test "${enable_shared+set}" = set; then + enableval=$enable_shared; +fi + + +if test x$enable_shared != xno; then + { echo "$as_me:$LINENO: checking for shared library support" >&5 +echo $ECHO_N "checking for shared library support... $ECHO_C" >&6; } + PICFLAG=1 + + case "$uname" in + SunOS* | UNIX_S*) + { echo "$as_me:$LINENO: result: yes" >&5 +echo "${ECHO_T}yes" >&6; } + LIBMXML="libmxml.so.1.5" + DSO="\$(CC)" + DSOFLAGS="$DSOFLAGS -Wl,-h,libmxml.so.1 -G -R\$(libdir) \$(OPTIM)" + LDFLAGS="$LDFLAGS -R\$(libdir)" + ;; + + HP-UX*) + { echo "$as_me:$LINENO: result: yes" >&5 +echo "${ECHO_T}yes" >&6; } + LIBMXML="libmxml.sl.1" + DSO="ld" + DSOFLAGS="$DSOFLAGS -b -z +h libmxml.sl.1 +s +b \$(libdir)" + LDFLAGS="$LDFLAGS -Wl,+s,+b,\$(libdir)" + ;; + + IRIX) + { echo "$as_me:$LINENO: result: yes" >&5 +echo "${ECHO_T}yes" >&6; } + LIBMXML="libmxml.so.1.5" + DSO="\$(CC)" + DSOFLAGS="$DSOFLAGS -Wl,-rpath,\$(libdir),-set_version,sgi1.0,-soname,libmxml.so.1 -shared \$(OPTIM)" + ;; + + OSF1* | Linux | GNU) + { echo "$as_me:$LINENO: result: yes" >&5 +echo "${ECHO_T}yes" >&6; } + LIBMXML="libmxml.so.1.5" + DSO="\$(CC)" + DSOFLAGS="$DSOFLAGS -Wl,-soname,libmxml.so.1,-rpath,\$(libdir) -shared \$(OPTIM)" + LDFLAGS="$LDFLAGS -Wl,-rpath,\$(libdir)" + ;; + + *BSD*) + { echo "$as_me:$LINENO: result: yes" >&5 +echo "${ECHO_T}yes" >&6; } + LIBMXML="libmxml.so.1.5" + DSO="\$(CC)" + DSOFLAGS="$DSOFLAGS -Wl,-soname,libmxml.so.1,-R\$(libdir) -shared \$(OPTIM)" + LDFLAGS="$LDFLAGS -Wl,-R\$(libdir)" + ;; + + Darwin*) + { echo "$as_me:$LINENO: result: yes" >&5 +echo "${ECHO_T}yes" >&6; } + LIBMXML="libmxml.1.dylib" + DSO="\$(CC)" + DSOFLAGS="$DSOFLAGS \$(RC_CFLAGS) -dynamiclib -lc" + ;; + + *) + { echo "$as_me:$LINENO: result: no" >&5 +echo "${ECHO_T}no" >&6; } + { echo "$as_me:$LINENO: WARNING: shared libraries not supported on this platform." >&5 +echo "$as_me: WARNING: shared libraries not supported on this platform." >&2;} + PICFLAG=0 + LIBMXML="libmxml.a" + ;; + esac +else + PICFLAG=0 + LIBMXML="libmxml.a" +fi + + + + + + +if test -n "$GCC"; then + CFLAGS="-Wall $CFLAGS" + + if test "x$OPTIM" = x; then + OPTIM="-Os -g" + fi + + if test "x$use_ansi" = xyes; then + CFLAGS="-ansi -pedantic $CFLAGS" + fi + + if test $PICFLAG = 1 -a $uname != AIX; then + OPTIM="-fPIC $OPTIM" + fi +else + case $uname in + HP-UX*) + CFLAGS="-Ae $CFLAGS" + + if test "x$OPTIM" = x; then + OPTIM="-O" + fi + + OPTIM="+DAportable $OPTIM" + + if test $PICFLAG = 1; then + OPTIM="+z $OPTIM" + fi + ;; + + UNIX_SVR* | SunOS*) + if test "x$OPTIM" = x; then + OPTIM="-O" + fi + + if test $PICFLAG = 1; then + OPTIM="-KPIC $OPTIM" + fi + ;; + + *) + if test "x$OPTIM" = x; then + OPTIM="-O" + fi + ;; + esac +fi + +if test "$prefix" = "NONE"; then + prefix="/usr/local" +fi + +if test "$exec_prefix" = "NONE"; then + exec_prefix="$prefix" +fi + +if test "$docdir" = "NONE"; then + docdir="$datadir/doc/mxml" +fi + +if test "$mandir" = "\${prefix}/man" -a "$prefix" = "/usr"; then + case "$uname" in + *BSD* | Darwin* | Linux*) + # BSD, Darwin (MacOS X), and Linux + mandir="/usr/share/man" + ;; + IRIX*) + # SGI IRIX + mandir="/usr/share/catman/u_man" + ;; + *) + # All others + mandir="/usr/man" + ;; + esac +fi + +if test "$includedir" != /usr/include; then + PC_CFLAGS="-I$includedir" +else + PC_CFLAGS="" +fi + +if test "$libdir" != /usr/lib; then + PC_LIBS="-L$libdir -lmxml" +else + PC_LIBS="-lmxml" +fi + + + + +ac_config_files="$ac_config_files Makefile mxml.list mxml.pc" + +cat >confcache <<\_ACEOF +# This file is a shell script that caches the results of configure +# tests run on this system so they can be shared between configure +# scripts and configure runs, see configure's option --config-cache. +# It is not useful on other systems. If it contains results you don't +# want to keep, you may remove or edit it. +# +# config.status only pays attention to the cache file if you give it +# the --recheck option to rerun configure. +# +# `ac_cv_env_foo' variables (set or unset) will be overridden when +# loading this file, other *unset* `ac_cv_foo' will be assigned the +# following values. + +_ACEOF + +# The following way of writing the cache mishandles newlines in values, +# but we know of no workaround that is simple, portable, and efficient. +# So, we kill variables containing newlines. +# Ultrix sh set writes to stderr and can't be redirected directly, +# and sets the high bit in the cache file unless we assign to the vars. +( + for ac_var in `(set) 2>&1 | sed -n 's/^\([a-zA-Z_][a-zA-Z0-9_]*\)=.*/\1/p'`; do + eval ac_val=\$$ac_var + case $ac_val in #( + *${as_nl}*) + case $ac_var in #( + *_cv_*) { echo "$as_me:$LINENO: WARNING: Cache variable $ac_var contains a newline." >&5 +echo "$as_me: WARNING: Cache variable $ac_var contains a newline." >&2;} ;; + esac + case $ac_var in #( + _ | IFS | as_nl) ;; #( + *) $as_unset $ac_var ;; + esac ;; + esac + done + + (set) 2>&1 | + case $as_nl`(ac_space=' '; set) 2>&1` in #( + *${as_nl}ac_space=\ *) + # `set' does not quote correctly, so add quotes (double-quote + # substitution turns \\\\ into \\, and sed turns \\ into \). + sed -n \ + "s/'/'\\\\''/g; + s/^\\([_$as_cr_alnum]*_cv_[_$as_cr_alnum]*\\)=\\(.*\\)/\\1='\\2'/p" + ;; #( + *) + # `set' quotes correctly as required by POSIX, so do not add quotes. + sed -n "/^[_$as_cr_alnum]*_cv_[_$as_cr_alnum]*=/p" + ;; + esac | + sort +) | + sed ' + /^ac_cv_env_/b end + t clear + :clear + s/^\([^=]*\)=\(.*[{}].*\)$/test "${\1+set}" = set || &/ + t end + s/^\([^=]*\)=\(.*\)$/\1=${\1=\2}/ + :end' >>confcache +if diff "$cache_file" confcache >/dev/null 2>&1; then :; else + if test -w "$cache_file"; then + test "x$cache_file" != "x/dev/null" && + { echo "$as_me:$LINENO: updating cache $cache_file" >&5 +echo "$as_me: updating cache $cache_file" >&6;} + cat confcache >$cache_file + else + { echo "$as_me:$LINENO: not updating unwritable cache $cache_file" >&5 +echo "$as_me: not updating unwritable cache $cache_file" >&6;} + fi +fi +rm -f confcache + +test "x$prefix" = xNONE && prefix=$ac_default_prefix +# Let make expand exec_prefix. +test "x$exec_prefix" = xNONE && exec_prefix='${prefix}' + +DEFS=-DHAVE_CONFIG_H + +ac_libobjs= +ac_ltlibobjs= +for ac_i in : $LIBOBJS; do test "x$ac_i" = x: && continue + # 1. Remove the extension, and $U if already installed. + ac_script='s/\$U\././;s/\.o$//;s/\.obj$//' + ac_i=`echo "$ac_i" | sed "$ac_script"` + # 2. Prepend LIBOBJDIR. When used with automake>=1.10 LIBOBJDIR + # will be set to the directory where LIBOBJS objects are built. + ac_libobjs="$ac_libobjs \${LIBOBJDIR}$ac_i\$U.$ac_objext" + ac_ltlibobjs="$ac_ltlibobjs \${LIBOBJDIR}$ac_i"'$U.lo' +done +LIBOBJS=$ac_libobjs + +LTLIBOBJS=$ac_ltlibobjs + + + +: ${CONFIG_STATUS=./config.status} +ac_clean_files_save=$ac_clean_files +ac_clean_files="$ac_clean_files $CONFIG_STATUS" +{ echo "$as_me:$LINENO: creating $CONFIG_STATUS" >&5 +echo "$as_me: creating $CONFIG_STATUS" >&6;} +cat >$CONFIG_STATUS <<_ACEOF +#! $SHELL +# Generated by $as_me. +# Run this file to recreate the current configuration. +# Compiler output produced by configure, useful for debugging +# configure, is in config.log if it exists. + +debug=false +ac_cs_recheck=false +ac_cs_silent=false +SHELL=\${CONFIG_SHELL-$SHELL} +_ACEOF + +cat >>$CONFIG_STATUS <<\_ACEOF +## --------------------- ## +## M4sh Initialization. ## +## --------------------- ## + +# Be more Bourne compatible +DUALCASE=1; export DUALCASE # for MKS sh +if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then + emulate sh + NULLCMD=: + # Zsh 3.x and 4.x performs word splitting on ${1+"$@"}, which + # is contrary to our usage. Disable this feature. + alias -g '${1+"$@"}'='"$@"' + setopt NO_GLOB_SUBST +else + case `(set -o) 2>/dev/null` in + *posix*) set -o posix ;; +esac + +fi + + + + +# PATH needs CR +# Avoid depending upon Character Ranges. +as_cr_letters='abcdefghijklmnopqrstuvwxyz' +as_cr_LETTERS='ABCDEFGHIJKLMNOPQRSTUVWXYZ' +as_cr_Letters=$as_cr_letters$as_cr_LETTERS +as_cr_digits='0123456789' +as_cr_alnum=$as_cr_Letters$as_cr_digits + +# The user is always right. +if test "${PATH_SEPARATOR+set}" != set; then + echo "#! /bin/sh" >conf$$.sh + echo "exit 0" >>conf$$.sh + chmod +x conf$$.sh + if (PATH="/nonexistent;."; conf$$.sh) >/dev/null 2>&1; then + PATH_SEPARATOR=';' + else + PATH_SEPARATOR=: + fi + rm -f conf$$.sh +fi + +# Support unset when possible. +if ( (MAIL=60; unset MAIL) || exit) >/dev/null 2>&1; then + as_unset=unset +else + as_unset=false +fi + + +# IFS +# We need space, tab and new line, in precisely that order. Quoting is +# there to prevent editors from complaining about space-tab. +# (If _AS_PATH_WALK were called with IFS unset, it would disable word +# splitting by setting IFS to empty value.) +as_nl=' +' +IFS=" "" $as_nl" + +# Find who we are. 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The first 'sed' inserts a + # line-number line after each line using $LINENO; the second 'sed' + # does the real work. The second script uses 'N' to pair each + # line-number line with the line containing $LINENO, and appends + # trailing '-' during substitution so that $LINENO is not a special + # case at line end. + # (Raja R Harinath suggested sed '=', and Paul Eggert wrote the + # scripts with optimization help from Paolo Bonzini. Blame Lee + # E. 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" + fi +done + +ac_eof=`sed -n '/^CEOF[0-9]*$/s/CEOF/0/p' conf$$subs.sed` +if test -n "$ac_eof"; then + ac_eof=`echo "$ac_eof" | sort -nru | sed 1q` + ac_eof=`expr $ac_eof + 1` +fi + +cat >>$CONFIG_STATUS <<_ACEOF +cat >"\$tmp/subs-1.sed" <<\CEOF$ac_eof +/@[a-zA-Z_][a-zA-Z_0-9]*@/!b end +_ACEOF +sed ' +s/[,\\&]/\\&/g; s/@/@|#_!!_#|/g +s/^/s,@/; s/!/@,|#_!!_#|/ +:n +t n +s/'"$ac_delim"'$/,g/; t +s/$/\\/; p +N; s/^.*\n//; s/[,\\&]/\\&/g; s/@/@|#_!!_#|/g; b n +' >>$CONFIG_STATUS >$CONFIG_STATUS <<_ACEOF +:end +s/|#_!!_#|//g +CEOF$ac_eof +_ACEOF + + +# VPATH may cause trouble with some makes, so we remove $(srcdir), +# ${srcdir} and @srcdir@ from VPATH if srcdir is ".", strip leading and +# trailing colons and then remove the whole line if VPATH becomes empty +# (actually we leave an empty line to preserve line numbers). +if test "x$srcdir" = x.; then + ac_vpsub='/^[ ]*VPATH[ ]*=/{ +s/:*\$(srcdir):*/:/ +s/:*\${srcdir}:*/:/ +s/:*@srcdir@:*/:/ +s/^\([^=]*=[ ]*\):*/\1/ +s/:*$// +s/^[^=]*=[ ]*$// +}' +fi + +cat >>$CONFIG_STATUS <<\_ACEOF +fi # test -n "$CONFIG_FILES" + + +for ac_tag in :F $CONFIG_FILES :H $CONFIG_HEADERS +do + case $ac_tag in + :[FHLC]) ac_mode=$ac_tag; continue;; + esac + case $ac_mode$ac_tag in + :[FHL]*:*);; + :L* | :C*:*) { { echo "$as_me:$LINENO: error: Invalid tag $ac_tag." >&5 +echo "$as_me: error: Invalid tag $ac_tag." >&2;} + { (exit 1); exit 1; }; };; + :[FH]-) ac_tag=-:-;; + :[FH]*) ac_tag=$ac_tag:$ac_tag.in;; + esac + ac_save_IFS=$IFS + IFS=: + set x $ac_tag + IFS=$ac_save_IFS + shift + ac_file=$1 + shift + + case $ac_mode in + :L) ac_source=$1;; + :[FH]) + ac_file_inputs= + for ac_f + do + case $ac_f in + -) ac_f="$tmp/stdin";; + *) # Look for the file first in the build tree, then in the source tree + # (if the path is not absolute). The absolute path cannot be DOS-style, + # because $ac_f cannot contain `:'. + test -f "$ac_f" || + case $ac_f in + [\\/$]*) false;; + *) test -f "$srcdir/$ac_f" && ac_f="$srcdir/$ac_f";; + esac || + { { echo "$as_me:$LINENO: error: cannot find input file: $ac_f" >&5 +echo "$as_me: error: cannot find input file: $ac_f" >&2;} + { (exit 1); exit 1; }; };; + esac + ac_file_inputs="$ac_file_inputs $ac_f" + done + + # Let's still pretend it is `configure' which instantiates (i.e., don't + # use $as_me), people would be surprised to read: + # /* config.h. Generated by config.status. */ + configure_input="Generated from "`IFS=: + echo $* | sed 's|^[^:]*/||;s|:[^:]*/|, |g'`" by configure." + if test x"$ac_file" != x-; then + configure_input="$ac_file. $configure_input" + { echo "$as_me:$LINENO: creating $ac_file" >&5 +echo "$as_me: creating $ac_file" >&6;} + fi + + case $ac_tag in + *:-:* | *:-) cat >"$tmp/stdin";; + esac + ;; + esac + + ac_dir=`$as_dirname -- "$ac_file" || +$as_expr X"$ac_file" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \ + X"$ac_file" : 'X\(//\)[^/]' \| \ + X"$ac_file" : 'X\(//\)$' \| \ + X"$ac_file" : 'X\(/\)' \| . 2>/dev/null || +echo X"$ac_file" | + sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{ + s//\1/ + q + } + /^X\(\/\/\)[^/].*/{ + s//\1/ + q + } + /^X\(\/\/\)$/{ + s//\1/ + q + } + /^X\(\/\).*/{ + s//\1/ + q + } + s/.*/./; q'` + { as_dir="$ac_dir" + case $as_dir in #( + -*) as_dir=./$as_dir;; + esac + test -d "$as_dir" || { $as_mkdir_p && mkdir -p "$as_dir"; } || { + as_dirs= + while :; do + case $as_dir in #( + *\'*) as_qdir=`echo "$as_dir" | sed "s/'/'\\\\\\\\''/g"`;; #( + *) as_qdir=$as_dir;; + esac + as_dirs="'$as_qdir' $as_dirs" + as_dir=`$as_dirname -- "$as_dir" || +$as_expr X"$as_dir" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \ + X"$as_dir" : 'X\(//\)[^/]' \| \ + X"$as_dir" : 'X\(//\)$' \| \ + X"$as_dir" : 'X\(/\)' \| . 2>/dev/null || +echo X"$as_dir" | + sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{ + s//\1/ + q + } + /^X\(\/\/\)[^/].*/{ + s//\1/ + q + } + /^X\(\/\/\)$/{ + s//\1/ + q + } + /^X\(\/\).*/{ + s//\1/ + q + } + s/.*/./; q'` + test -d "$as_dir" && break + done + test -z "$as_dirs" || eval "mkdir $as_dirs" + } || test -d "$as_dir" || { { echo "$as_me:$LINENO: error: cannot create directory $as_dir" >&5 +echo "$as_me: error: cannot create directory $as_dir" >&2;} + { (exit 1); exit 1; }; }; } + ac_builddir=. + +case "$ac_dir" in +.) ac_dir_suffix= ac_top_builddir_sub=. ac_top_build_prefix= ;; +*) + ac_dir_suffix=/`echo "$ac_dir" | sed 's,^\.[\\/],,'` + # A ".." for each directory in $ac_dir_suffix. + ac_top_builddir_sub=`echo "$ac_dir_suffix" | sed 's,/[^\\/]*,/..,g;s,/,,'` + case $ac_top_builddir_sub in + "") ac_top_builddir_sub=. ac_top_build_prefix= ;; + *) ac_top_build_prefix=$ac_top_builddir_sub/ ;; + esac ;; +esac +ac_abs_top_builddir=$ac_pwd +ac_abs_builddir=$ac_pwd$ac_dir_suffix +# for backward compatibility: +ac_top_builddir=$ac_top_build_prefix + +case $srcdir in + .) # We are building in place. + ac_srcdir=. + ac_top_srcdir=$ac_top_builddir_sub + ac_abs_top_srcdir=$ac_pwd ;; + [\\/]* | ?:[\\/]* ) # Absolute name. + ac_srcdir=$srcdir$ac_dir_suffix; + ac_top_srcdir=$srcdir + ac_abs_top_srcdir=$srcdir ;; + *) # Relative name. + ac_srcdir=$ac_top_build_prefix$srcdir$ac_dir_suffix + ac_top_srcdir=$ac_top_build_prefix$srcdir + ac_abs_top_srcdir=$ac_pwd/$srcdir ;; +esac +ac_abs_srcdir=$ac_abs_top_srcdir$ac_dir_suffix + + + case $ac_mode in + :F) + # + # CONFIG_FILE + # + + case $INSTALL in + [\\/$]* | ?:[\\/]* ) ac_INSTALL=$INSTALL ;; + *) ac_INSTALL=$ac_top_build_prefix$INSTALL ;; + esac +_ACEOF + +cat >>$CONFIG_STATUS <<\_ACEOF +# If the template does not know about datarootdir, expand it. +# FIXME: This hack should be removed a few years after 2.60. +ac_datarootdir_hack=; ac_datarootdir_seen= + +case `sed -n '/datarootdir/ { + p + q +} +/@datadir@/p +/@docdir@/p +/@infodir@/p +/@localedir@/p +/@mandir@/p +' $ac_file_inputs` in +*datarootdir*) ac_datarootdir_seen=yes;; +*@datadir@*|*@docdir@*|*@infodir@*|*@localedir@*|*@mandir@*) + { echo "$as_me:$LINENO: WARNING: $ac_file_inputs seems to ignore the --datarootdir setting" >&5 +echo "$as_me: WARNING: $ac_file_inputs seems to ignore the --datarootdir setting" >&2;} +_ACEOF +cat >>$CONFIG_STATUS <<_ACEOF + ac_datarootdir_hack=' + s&@datadir@&$datadir&g + s&@docdir@&$docdir&g + s&@infodir@&$infodir&g + s&@localedir@&$localedir&g + s&@mandir@&$mandir&g + s&\\\${datarootdir}&$datarootdir&g' ;; +esac +_ACEOF + +# Neutralize VPATH when `$srcdir' = `.'. +# Shell code in configure.ac might set extrasub. +# FIXME: do we really want to maintain this feature? +cat >>$CONFIG_STATUS <<_ACEOF + sed "$ac_vpsub +$extrasub +_ACEOF +cat >>$CONFIG_STATUS <<\_ACEOF +:t +/@[a-zA-Z_][a-zA-Z_0-9]*@/!b +s&@configure_input@&$configure_input&;t t +s&@top_builddir@&$ac_top_builddir_sub&;t t +s&@srcdir@&$ac_srcdir&;t t +s&@abs_srcdir@&$ac_abs_srcdir&;t t +s&@top_srcdir@&$ac_top_srcdir&;t t +s&@abs_top_srcdir@&$ac_abs_top_srcdir&;t t +s&@builddir@&$ac_builddir&;t t +s&@abs_builddir@&$ac_abs_builddir&;t t +s&@abs_top_builddir@&$ac_abs_top_builddir&;t t +s&@INSTALL@&$ac_INSTALL&;t t +$ac_datarootdir_hack +" $ac_file_inputs | sed -f "$tmp/subs-1.sed" >$tmp/out + +test -z "$ac_datarootdir_hack$ac_datarootdir_seen" && + { ac_out=`sed -n '/\${datarootdir}/p' "$tmp/out"`; test -n "$ac_out"; } && + { ac_out=`sed -n '/^[ ]*datarootdir[ ]*:*=/p' "$tmp/out"`; test -z "$ac_out"; } && + { echo "$as_me:$LINENO: WARNING: $ac_file contains a reference to the variable \`datarootdir' +which seems to be undefined. Please make sure it is defined." >&5 +echo "$as_me: WARNING: $ac_file contains a reference to the variable \`datarootdir' +which seems to be undefined. Please make sure it is defined." >&2;} + + rm -f "$tmp/stdin" + case $ac_file in + -) cat "$tmp/out"; rm -f "$tmp/out";; + *) rm -f "$ac_file"; mv "$tmp/out" $ac_file;; + esac + ;; + :H) + # + # CONFIG_HEADER + # +_ACEOF + +# Transform confdefs.h into a sed script `conftest.defines', that +# substitutes the proper values into config.h.in to produce config.h. +rm -f conftest.defines conftest.tail +# First, append a space to every undef/define line, to ease matching. +echo 's/$/ /' >conftest.defines +# Then, protect against being on the right side of a sed subst, or in +# an unquoted here document, in config.status. If some macros were +# called several times there might be several #defines for the same +# symbol, which is useless. But do not sort them, since the last +# AC_DEFINE must be honored. +ac_word_re=[_$as_cr_Letters][_$as_cr_alnum]* +# These sed commands are passed to sed as "A NAME B PARAMS C VALUE D", where +# NAME is the cpp macro being defined, VALUE is the value it is being given. +# PARAMS is the parameter list in the macro definition--in most cases, it's +# just an empty string. +ac_dA='s,^\\([ #]*\\)[^ ]*\\([ ]*' +ac_dB='\\)[ (].*,\\1define\\2' +ac_dC=' ' +ac_dD=' ,' + +uniq confdefs.h | + sed -n ' + t rset + :rset + s/^[ ]*#[ ]*define[ ][ ]*// + t ok + d + :ok + s/[\\&,]/\\&/g + s/^\('"$ac_word_re"'\)\(([^()]*)\)[ ]*\(.*\)/ '"$ac_dA"'\1'"$ac_dB"'\2'"${ac_dC}"'\3'"$ac_dD"'/p + s/^\('"$ac_word_re"'\)[ ]*\(.*\)/'"$ac_dA"'\1'"$ac_dB$ac_dC"'\2'"$ac_dD"'/p + ' >>conftest.defines + +# Remove the space that was appended to ease matching. +# Then replace #undef with comments. This is necessary, for +# example, in the case of _POSIX_SOURCE, which is predefined and required +# on some systems where configure will not decide to define it. +# (The regexp can be short, since the line contains either #define or #undef.) +echo 's/ $// +s,^[ #]*u.*,/* & */,' >>conftest.defines + +# Break up conftest.defines: +ac_max_sed_lines=50 + +# First sed command is: sed -f defines.sed $ac_file_inputs >"$tmp/out1" +# Second one is: sed -f defines.sed "$tmp/out1" >"$tmp/out2" +# Third one will be: sed -f defines.sed "$tmp/out2" >"$tmp/out1" +# et cetera. +ac_in='$ac_file_inputs' +ac_out='"$tmp/out1"' +ac_nxt='"$tmp/out2"' + +while : +do + # Write a here document: + cat >>$CONFIG_STATUS <<_ACEOF + # First, check the format of the line: + cat >"\$tmp/defines.sed" <<\\CEOF +/^[ ]*#[ ]*undef[ ][ ]*$ac_word_re[ ]*\$/b def +/^[ ]*#[ ]*define[ ][ ]*$ac_word_re[( ]/b def +b +:def +_ACEOF + sed ${ac_max_sed_lines}q conftest.defines >>$CONFIG_STATUS + echo 'CEOF + sed -f "$tmp/defines.sed"' "$ac_in >$ac_out" >>$CONFIG_STATUS + ac_in=$ac_out; ac_out=$ac_nxt; ac_nxt=$ac_in + sed 1,${ac_max_sed_lines}d conftest.defines >conftest.tail + grep . conftest.tail >/dev/null || break + rm -f conftest.defines + mv conftest.tail conftest.defines +done +rm -f conftest.defines conftest.tail + +echo "ac_result=$ac_in" >>$CONFIG_STATUS +cat >>$CONFIG_STATUS <<\_ACEOF + if test x"$ac_file" != x-; then + echo "/* $configure_input */" >"$tmp/config.h" + cat "$ac_result" >>"$tmp/config.h" + if diff $ac_file "$tmp/config.h" >/dev/null 2>&1; then + { echo "$as_me:$LINENO: $ac_file is unchanged" >&5 +echo "$as_me: $ac_file is unchanged" >&6;} + else + rm -f $ac_file + mv "$tmp/config.h" $ac_file + fi + else + echo "/* $configure_input */" + cat "$ac_result" + fi + rm -f "$tmp/out12" + ;; + + + esac + +done # for ac_tag + + +{ (exit 0); exit 0; } +_ACEOF +chmod +x $CONFIG_STATUS +ac_clean_files=$ac_clean_files_save + + +# configure is writing to config.log, and then calls config.status. +# config.status does its own redirection, appending to config.log. +# Unfortunately, on DOS this fails, as config.log is still kept open +# by configure, so config.status won't be able to write to it; its +# output is simply discarded. So we exec the FD to /dev/null, +# effectively closing config.log, so it can be properly (re)opened and +# appended to by config.status. When coming back to configure, we +# need to make the FD available again. +if test "$no_create" != yes; then + ac_cs_success=: + ac_config_status_args= + test "$silent" = yes && + ac_config_status_args="$ac_config_status_args --quiet" + exec 5>/dev/null + $SHELL $CONFIG_STATUS $ac_config_status_args || ac_cs_success=false + exec 5>>config.log + # Use ||, not &&, to avoid exiting from the if with $? = 1, which + # would make configure fail if this is the last instruction. + $ac_cs_success || { (exit 1); exit 1; } +fi + + diff --git a/xml/configure.in b/xml/configure.in new file mode 100644 index 0000000..45e813a --- /dev/null +++ b/xml/configure.in @@ -0,0 +1,338 @@ +dnl +dnl "$Id: configure.in 427 2011-01-03 02:03:29Z mike $" +dnl +dnl Configuration script for Mini-XML, a small XML-like file parsing library. +dnl +dnl Copyright 2003-2011 by Michael R Sweet. +dnl +dnl These coded instructions, statements, and computer programs are the +dnl property of Michael R Sweet and are protected by Federal copyright +dnl law. Distribution and use rights are outlined in the file "COPYING" +dnl which should have been included with this file. If this file is +dnl missing or damaged, see the license at: +dnl +dnl http://www.minixml.org/ +dnl + +dnl Specify a source file from the distribution... +AC_INIT(mxml.h) + +dnl Set the name of the config header file... +AC_CONFIG_HEADER(config.h) + +dnl Version number... +VERSION=2.7 +AC_SUBST(VERSION) +AC_DEFINE_UNQUOTED(MXML_VERSION, "Mini-XML v$VERSION") + +dnl Clear default debugging options and set normal optimization by +dnl default unless the user asks for debugging specifically. +CFLAGS="${CFLAGS:=}" +CXXFLAGS="${CXXFLAGS:=}" +LDFLAGS="${LDFLAGS:=}" +AC_SUBST(LDFLAGS) +OPTIM="" +AC_SUBST(OPTIM) + +AC_ARG_WITH(ansi, [ --with-ansi set full ANSI C mode, default=no], + use_ansi="$withval", + use_ansi="no") + +AC_ARG_WITH(archflags, [ --with-archflags set additional architecture flags, default=none], + ARCHFLAGS="$withval", + ARCHFLAGS="") +AC_SUBST(ARCHFLAGS) + +AC_ARG_ENABLE(debug, [ --enable-debug turn on debugging, default=no], +if eval "test x$enable_debug = xyes"; then + OPTIM="-g" +fi) + +AC_ARG_WITH(docdir, [ --with-docdir set directory for documentation, default=${prefix}/share/doc/mxml], + docdir="$withval", + docdir="NONE") + +AC_SUBST(docdir) + +AC_ARG_WITH(vsnprintf, [ --with-vsnprintf use vsnprintf emulation functions, default=auto], + use_vsnprintf="$withval", + use_vsnprintf="no") + +dnl Get the operating system and version number... +uname=`uname` +uversion=`uname -r | sed -e '1,$s/[[^0-9]]//g'` +if test x$uname = xIRIX64; then + uname="IRIX" +fi + +dnl Checks for programs... +AC_PROG_CC +AC_PROG_CXX +AC_PROG_INSTALL +if test "$INSTALL" = "$ac_install_sh"; then + # Use full path to install-sh script... + INSTALL="`pwd`/install-sh -c" +fi +AC_PROG_RANLIB +AC_PATH_PROG(AR,ar) +AC_PATH_PROG(CP,cp) +AC_PATH_PROG(LN,ln) +AC_PATH_PROG(MKDIR,mkdir) +AC_PATH_PROG(RM,rm) + +dnl Flags for "ar" command... +case "$uname" in + Darwin* | *BSD*) + ARFLAGS="-rcv" + ;; + *) + ARFLAGS="crvs" + ;; +esac + +AC_SUBST(ARFLAGS) + +dnl Inline functions... +AC_C_INLINE + +dnl Checks for string functions. +if test "x$use_ansi" != xyes; then + AC_CHECK_FUNCS(strdup) +fi + +if test "x$use_vsnprintf" != xyes; then + AC_CHECK_FUNCS(snprintf vsnprintf) +fi + +dnl Check for "long long" support... +AC_CACHE_CHECK(for long long int, ac_cv_c_long_long, + [if test "$GCC" = yes; then + ac_cv_c_long_long=yes + else + AC_TRY_COMPILE(,[long long int i;], + ac_cv_c_long_long=yes, + ac_cv_c_long_long=no) + fi]) + +if test $ac_cv_c_long_long = yes; then + AC_DEFINE(HAVE_LONG_LONG) +fi + +dnl Threading support +AC_ARG_ENABLE(threads, [ --enable-threads enable multi-threading support]) + +have_pthread=no +PTHREAD_FLAGS="" +PTHREAD_LIBS="" + +if test "x$enable_threads" != xno; then + AC_CHECK_HEADER(pthread.h, AC_DEFINE(HAVE_PTHREAD_H)) + + if test x$ac_cv_header_pthread_h = xyes; then + dnl Check various threading options for the platforms we support + for flag in -lpthreads -lpthread -pthread; do + AC_MSG_CHECKING([for pthread_create using $flag]) + SAVELIBS="$LIBS" + LIBS="$flag $LIBS" + AC_TRY_LINK([#include ], + [pthread_create(0, 0, 0, 0);], + have_pthread=yes) + AC_MSG_RESULT([$have_pthread]) + LIBS="$SAVELIBS" + + if test $have_pthread = yes; then + PTHREAD_FLAGS="-D_THREAD_SAFE -D_REENTRANT" + PTHREAD_LIBS="$flag" + + # Solaris requires -D_POSIX_PTHREAD_SEMANTICS to + # be POSIX-compliant... :( + if test $uname = SunOS; then + PTHREAD_FLAGS="$PTHREAD_FLAGS -D_POSIX_PTHREAD_SEMANTICS" + fi + break + fi + done + fi +fi + +AC_SUBST(PTHREAD_FLAGS) +AC_SUBST(PTHREAD_LIBS) + +dnl Shared library support... +DSO="${DSO:=:}" +DSOFLAGS="${DSOFLAGS:=}" + +AC_ARG_ENABLE(shared, [ --enable-shared turn on shared libraries, default=no]) + +if test x$enable_shared != xno; then + AC_MSG_CHECKING(for shared library support) + PICFLAG=1 + + case "$uname" in + SunOS* | UNIX_S*) + AC_MSG_RESULT(yes) + LIBMXML="libmxml.so.1.5" + DSO="\$(CC)" + DSOFLAGS="$DSOFLAGS -Wl,-h,libmxml.so.1 -G -R\$(libdir) \$(OPTIM)" + LDFLAGS="$LDFLAGS -R\$(libdir)" + ;; + + HP-UX*) + AC_MSG_RESULT(yes) + LIBMXML="libmxml.sl.1" + DSO="ld" + DSOFLAGS="$DSOFLAGS -b -z +h libmxml.sl.1 +s +b \$(libdir)" + LDFLAGS="$LDFLAGS -Wl,+s,+b,\$(libdir)" + ;; + + IRIX) + AC_MSG_RESULT(yes) + LIBMXML="libmxml.so.1.5" + DSO="\$(CC)" + DSOFLAGS="$DSOFLAGS -Wl,-rpath,\$(libdir),-set_version,sgi1.0,-soname,libmxml.so.1 -shared \$(OPTIM)" + ;; + + OSF1* | Linux | GNU) + AC_MSG_RESULT(yes) + LIBMXML="libmxml.so.1.5" + DSO="\$(CC)" + DSOFLAGS="$DSOFLAGS -Wl,-soname,libmxml.so.1,-rpath,\$(libdir) -shared \$(OPTIM)" + LDFLAGS="$LDFLAGS -Wl,-rpath,\$(libdir)" + ;; + + *BSD*) + AC_MSG_RESULT(yes) + LIBMXML="libmxml.so.1.5" + DSO="\$(CC)" + DSOFLAGS="$DSOFLAGS -Wl,-soname,libmxml.so.1,-R\$(libdir) -shared \$(OPTIM)" + LDFLAGS="$LDFLAGS -Wl,-R\$(libdir)" + ;; + + Darwin*) + AC_MSG_RESULT(yes) + LIBMXML="libmxml.1.dylib" + DSO="\$(CC)" + DSOFLAGS="$DSOFLAGS \$(RC_CFLAGS) -dynamiclib -lc" + ;; + + *) + AC_MSG_RESULT(no) + AC_MSG_WARN(shared libraries not supported on this platform.) + PICFLAG=0 + LIBMXML="libmxml.a" + ;; + esac +else + PICFLAG=0 + LIBMXML="libmxml.a" +fi + +AC_SUBST(DSO) +AC_SUBST(DSOFLAGS) +AC_SUBST(LIBMXML) +AC_SUBST(PICFLAG) + +dnl Add -Wall for GCC... +if test -n "$GCC"; then + CFLAGS="-Wall $CFLAGS" + + if test "x$OPTIM" = x; then + OPTIM="-Os -g" + fi + + if test "x$use_ansi" = xyes; then + CFLAGS="-ansi -pedantic $CFLAGS" + fi + + if test $PICFLAG = 1 -a $uname != AIX; then + OPTIM="-fPIC $OPTIM" + fi +else + case $uname in + HP-UX*) + CFLAGS="-Ae $CFLAGS" + + if test "x$OPTIM" = x; then + OPTIM="-O" + fi + + OPTIM="+DAportable $OPTIM" + + if test $PICFLAG = 1; then + OPTIM="+z $OPTIM" + fi + ;; + + UNIX_SVR* | SunOS*) + if test "x$OPTIM" = x; then + OPTIM="-O" + fi + + if test $PICFLAG = 1; then + OPTIM="-KPIC $OPTIM" + fi + ;; + + *) + if test "x$OPTIM" = x; then + OPTIM="-O" + fi + ;; + esac +fi + +dnl Fix "prefix" variable if it hasn't been specified... +if test "$prefix" = "NONE"; then + prefix="/usr/local" +fi + +dnl Fix "exec_prefix" variable if it hasn't been specified... +if test "$exec_prefix" = "NONE"; then + exec_prefix="$prefix" +fi + +dnl Fix "docdir" variable if it hasn't been specified... +if test "$docdir" = "NONE"; then + docdir="$datadir/doc/mxml" +fi + +dnl Fix "mandir" variable if it hasn't been specified... +if test "$mandir" = "\${prefix}/man" -a "$prefix" = "/usr"; then + case "$uname" in + *BSD* | Darwin* | Linux*) + # BSD, Darwin (MacOS X), and Linux + mandir="/usr/share/man" + ;; + IRIX*) + # SGI IRIX + mandir="/usr/share/catman/u_man" + ;; + *) + # All others + mandir="/usr/man" + ;; + esac +fi + +dnl pkg-config stuff... +if test "$includedir" != /usr/include; then + PC_CFLAGS="-I$includedir" +else + PC_CFLAGS="" +fi + +if test "$libdir" != /usr/lib; then + PC_LIBS="-L$libdir -lmxml" +else + PC_LIBS="-lmxml" +fi + +AC_SUBST(PC_CFLAGS) +AC_SUBST(PC_LIBS) + +dnl Output the makefile, etc... +AC_OUTPUT(Makefile mxml.list mxml.pc) + +dnl +dnl End of "$Id: configure.in 427 2011-01-03 02:03:29Z mike $". +dnl diff --git a/xml/doc/Mini-XML.pdf b/xml/doc/Mini-XML.pdf new file mode 100644 index 0000000..f1718a6 Binary files /dev/null and b/xml/doc/Mini-XML.pdf differ diff --git a/xml/install-sh b/xml/install-sh new file mode 100644 index 0000000..398a88e --- /dev/null +++ b/xml/install-sh @@ -0,0 +1,251 @@ +#!/bin/sh +# +# install - install a program, script, or datafile +# This comes from X11R5 (mit/util/scripts/install.sh). +# +# Copyright 1991 by the Massachusetts Institute of Technology +# +# Permission to use, copy, modify, distribute, and sell this software and its +# documentation for any purpose is hereby granted without fee, provided that +# the above copyright notice appear in all copies and that both that +# copyright notice and this permission notice appear in supporting +# documentation, and that the name of M.I.T. not be used in advertising or +# publicity pertaining to distribution of the software without specific, +# written prior permission. M.I.T. makes no representations about the +# suitability of this software for any purpose. It is provided "as is" +# without express or implied warranty. +# +# Calling this script install-sh is preferred over install.sh, to prevent +# `make' implicit rules from creating a file called install from it +# when there is no Makefile. +# +# This script is compatible with the BSD install script, but was written +# from scratch. It can only install one file at a time, a restriction +# shared with many OS's install programs. + + +# set DOITPROG to echo to test this script + +# Don't use :- since 4.3BSD and earlier shells don't like it. +doit="${DOITPROG-}" + + +# put in absolute paths if you don't have them in your path; or use env. vars. + +mvprog="${MVPROG-mv}" +cpprog="${CPPROG-cp}" +chmodprog="${CHMODPROG-chmod}" +chownprog="${CHOWNPROG-chown}" +chgrpprog="${CHGRPPROG-chgrp}" +stripprog="${STRIPPROG-strip}" +rmprog="${RMPROG-rm}" +mkdirprog="${MKDIRPROG-mkdir}" + +transformbasename="" +transform_arg="" +instcmd="$mvprog" +chmodcmd="$chmodprog 0755" +chowncmd="" +chgrpcmd="" +stripcmd="" +rmcmd="$rmprog -f" +mvcmd="$mvprog" +src="" +dst="" +dir_arg="" + +while [ x"$1" != x ]; do + case $1 in + -c) instcmd="$cpprog" + shift + continue;; + + -d) dir_arg=true + shift + continue;; + + -m) chmodcmd="$chmodprog $2" + shift + shift + continue;; + + -o) chowncmd="$chownprog $2" + shift + shift + continue;; + + -g) chgrpcmd="$chgrpprog $2" + shift + shift + continue;; + + -s) stripcmd="$stripprog" + shift + continue;; + + -t=*) transformarg=`echo $1 | sed 's/-t=//'` + shift + continue;; + + -b=*) transformbasename=`echo $1 | sed 's/-b=//'` + shift + continue;; + + *) if [ x"$src" = x ] + then + src=$1 + else + # this colon is to work around a 386BSD /bin/sh bug + : + dst=$1 + fi + shift + continue;; + esac +done + +if [ x"$src" = x ] +then + echo "install: no input file specified" + exit 1 +else + : +fi + +if [ x"$dir_arg" != x ]; then + dst=$src + src="" + + if [ -d $dst ]; then + instcmd=: + chmodcmd="" + else + instcmd=$mkdirprog + fi +else + +# Waiting for this to be detected by the "$instcmd $src $dsttmp" command +# might cause directories to be created, which would be especially bad +# if $src (and thus $dsttmp) contains '*'. + + if [ -f $src -o -d $src ] + then + : + else + echo "install: $src does not exist" + exit 1 + fi + + if [ x"$dst" = x ] + then + echo "install: no destination specified" + exit 1 + else + : + fi + +# If destination is a directory, append the input filename; if your system +# does not like double slashes in filenames, you may need to add some logic + + if [ -d $dst ] + then + dst="$dst"/`basename $src` + else + : + fi +fi + +## this sed command emulates the dirname command +dstdir=`echo $dst | sed -e 's,[^/]*$,,;s,/$,,;s,^$,.,'` + +# Make sure that the destination directory exists. +# this part is taken from Noah Friedman's mkinstalldirs script + +# Skip lots of stat calls in the usual case. +if [ ! -d "$dstdir" ]; then +defaultIFS=' + ' +IFS="${IFS-${defaultIFS}}" + +oIFS="${IFS}" +# Some sh's can't handle IFS=/ for some reason. +IFS='%' +set - `echo ${dstdir} | sed -e 's@/@%@g' -e 's@^%@/@'` +IFS="${oIFS}" + +pathcomp='' + +while [ $# -ne 0 ] ; do + pathcomp="${pathcomp}${1}" + shift + + if [ ! -d "${pathcomp}" ] ; + then + $mkdirprog "${pathcomp}" + else + : + fi + + pathcomp="${pathcomp}/" +done +fi + +if [ x"$dir_arg" != x ] +then + $doit $instcmd $dst && + + if [ x"$chowncmd" != x ]; then $doit $chowncmd $dst; else : ; fi && + if [ x"$chgrpcmd" != x ]; then $doit $chgrpcmd $dst; else : ; fi && + if [ x"$stripcmd" != x ]; then $doit $stripcmd $dst; else : ; fi && + if [ x"$chmodcmd" != x ]; then $doit $chmodcmd $dst; else : ; fi +else + +# If we're going to rename the final executable, determine the name now. + + if [ x"$transformarg" = x ] + then + dstfile=`basename $dst` + else + dstfile=`basename $dst $transformbasename | + sed $transformarg`$transformbasename + fi + +# don't allow the sed command to completely eliminate the filename + + if [ x"$dstfile" = x ] + then + dstfile=`basename $dst` + else + : + fi + +# Make a temp file name in the proper directory. + + dsttmp=$dstdir/#inst.$$# + +# Move or copy the file name to the temp name + + $doit $instcmd $src $dsttmp && + + trap "rm -f ${dsttmp}" 0 && + +# and set any options; do chmod last to preserve setuid bits + +# If any of these fail, we abort the whole thing. If we want to +# ignore errors from any of these, just make sure not to ignore +# errors from the above "$doit $instcmd $src $dsttmp" command. + + if [ x"$chowncmd" != x ]; then $doit $chowncmd $dsttmp; else :;fi && + if [ x"$chgrpcmd" != x ]; then $doit $chgrpcmd $dsttmp; else :;fi && + if [ x"$stripcmd" != x ]; then $doit $stripcmd $dsttmp; else :;fi && + if [ x"$chmodcmd" != x ]; then $doit $chmodcmd $dsttmp; else :;fi && + +# Now rename the file to the real destination. + + $doit $rmcmd -f $dstdir/$dstfile && + $doit $mvcmd $dsttmp $dstdir/$dstfile + +fi && + + +exit 0 diff --git a/xml/mxml-attr.c b/xml/mxml-attr.c new file mode 100644 index 0000000..c9950f5 --- /dev/null +++ b/xml/mxml-attr.c @@ -0,0 +1,319 @@ +/* + * "$Id: mxml-attr.c 408 2010-09-19 05:26:46Z mike $" + * + * Attribute support code for Mini-XML, a small XML-like file parsing library. + * + * Copyright 2003-2010 by Michael R Sweet. + * + * These coded instructions, statements, and computer programs are the + * property of Michael R Sweet and are protected by Federal copyright + * law. Distribution and use rights are outlined in the file "COPYING" + * which should have been included with this file. If this file is + * missing or damaged, see the license at: + * + * http://www.minixml.org/ + * + * Contents: + * + * mxmlElementDeleteAttr() - Delete an attribute. + * mxmlElementGetAttr() - Get an attribute. + * mxmlElementSetAttr() - Set an attribute. + * mxmlElementSetAttrf() - Set an attribute with a formatted value. + * mxml_set_attr() - Set or add an attribute name/value pair. + */ + +/* + * Include necessary headers... + */ + +#include "config.h" +#include "mxml.h" + + +/* + * Local functions... + */ + +static int mxml_set_attr(mxml_node_t *node, const char *name, + char *value); + + +/* + * 'mxmlElementDeleteAttr()' - Delete an attribute. + * + * @since Mini-XML 2.4@ + */ + +void +mxmlElementDeleteAttr(mxml_node_t *node,/* I - Element */ + const char *name)/* I - Attribute name */ +{ + int i; /* Looping var */ + mxml_attr_t *attr; /* Cirrent attribute */ + + +#ifdef DEBUG + fprintf(stderr, "mxmlElementDeleteAttr(node=%p, name=\"%s\")\n", + node, name ? name : "(null)"); +#endif /* DEBUG */ + + /* + * Range check input... + */ + + if (!node || node->type != MXML_ELEMENT || !name) + return; + + /* + * Look for the attribute... + */ + + for (i = node->value.element.num_attrs, attr = node->value.element.attrs; + i > 0; + i --, attr ++) + { +#ifdef DEBUG + printf(" %s=\"%s\"\n", attr->name, attr->value); +#endif /* DEBUG */ + + if (!strcmp(attr->name, name)) + { + /* + * Delete this attribute... + */ + + free(attr->name); + free(attr->value); + + i --; + if (i > 0) + memmove(attr, attr + 1, i * sizeof(mxml_attr_t)); + + node->value.element.num_attrs --; + return; + } + } +} + + +/* + * 'mxmlElementGetAttr()' - Get an attribute. + * + * This function returns NULL if the node is not an element or the + * named attribute does not exist. + */ + +const char * /* O - Attribute value or NULL */ +mxmlElementGetAttr(mxml_node_t *node, /* I - Element node */ + const char *name) /* I - Name of attribute */ +{ + int i; /* Looping var */ + mxml_attr_t *attr; /* Cirrent attribute */ + + +#ifdef DEBUG + fprintf(stderr, "mxmlElementGetAttr(node=%p, name=\"%s\")\n", + node, name ? name : "(null)"); +#endif /* DEBUG */ + + /* + * Range check input... + */ + + if (!node || node->type != MXML_ELEMENT || !name) + return (NULL); + + /* + * Look for the attribute... + */ + + for (i = node->value.element.num_attrs, attr = node->value.element.attrs; + i > 0; + i --, attr ++) + { +#ifdef DEBUG + printf(" %s=\"%s\"\n", attr->name, attr->value); +#endif /* DEBUG */ + + if (!strcmp(attr->name, name)) + { +#ifdef DEBUG + printf(" Returning \"%s\"!\n", attr->value); +#endif /* DEBUG */ + return (attr->value); + } + } + + /* + * Didn't find attribute, so return NULL... + */ + +#ifdef DEBUG + puts(" Returning NULL!\n"); +#endif /* DEBUG */ + + return (NULL); +} + + +/* + * 'mxmlElementSetAttr()' - Set an attribute. + * + * If the named attribute already exists, the value of the attribute + * is replaced by the new string value. The string value is copied + * into the element node. This function does nothing if the node is + * not an element. + */ + +void +mxmlElementSetAttr(mxml_node_t *node, /* I - Element node */ + const char *name, /* I - Name of attribute */ + const char *value) /* I - Attribute value */ +{ + char *valuec; /* Copy of value */ + + +#ifdef DEBUG + fprintf(stderr, "mxmlElementSetAttr(node=%p, name=\"%s\", value=\"%s\")\n", + node, name ? name : "(null)", value ? value : "(null)"); +#endif /* DEBUG */ + + /* + * Range check input... + */ + + if (!node || node->type != MXML_ELEMENT || !name) + return; + + if (value) + valuec = strdup(value); + else + valuec = NULL; + + if (mxml_set_attr(node, name, valuec)) + free(valuec); +} + + +/* + * 'mxmlElementSetAttrf()' - Set an attribute with a formatted value. + * + * If the named attribute already exists, the value of the attribute + * is replaced by the new formatted string. The formatted string value is + * copied into the element node. This function does nothing if the node + * is not an element. + * + * @since Mini-XML 2.3@ + */ + +void +mxmlElementSetAttrf(mxml_node_t *node, /* I - Element node */ + const char *name, /* I - Name of attribute */ + const char *format,/* I - Printf-style attribute value */ + ...) /* I - Additional arguments as needed */ +{ + va_list ap; /* Argument pointer */ + char *value; /* Value */ + + +#ifdef DEBUG + fprintf(stderr, + "mxmlElementSetAttrf(node=%p, name=\"%s\", format=\"%s\", ...)\n", + node, name ? name : "(null)", format ? format : "(null)"); +#endif /* DEBUG */ + + /* + * Range check input... + */ + + if (!node || node->type != MXML_ELEMENT || !name || !format) + return; + + /* + * Format the value... + */ + + va_start(ap, format); + value = _mxml_vstrdupf(format, ap); + va_end(ap); + + if (!value) + mxml_error("Unable to allocate memory for attribute '%s' in element %s!", + name, node->value.element.name); + else if (mxml_set_attr(node, name, value)) + free(value); +} + + +/* + * 'mxml_set_attr()' - Set or add an attribute name/value pair. + */ + +static int /* O - 0 on success, -1 on failure */ +mxml_set_attr(mxml_node_t *node, /* I - Element node */ + const char *name, /* I - Attribute name */ + char *value) /* I - Attribute value */ +{ + int i; /* Looping var */ + mxml_attr_t *attr; /* New attribute */ + + + /* + * Look for the attribute... + */ + + for (i = node->value.element.num_attrs, attr = node->value.element.attrs; + i > 0; + i --, attr ++) + if (!strcmp(attr->name, name)) + { + /* + * Free the old value as needed... + */ + + if (attr->value) + free(attr->value); + + attr->value = value; + + return (0); + } + + /* + * Add a new attribute... + */ + + if (node->value.element.num_attrs == 0) + attr = malloc(sizeof(mxml_attr_t)); + else + attr = realloc(node->value.element.attrs, + (node->value.element.num_attrs + 1) * sizeof(mxml_attr_t)); + + if (!attr) + { + mxml_error("Unable to allocate memory for attribute '%s' in element %s!", + name, node->value.element.name); + return (-1); + } + + node->value.element.attrs = attr; + attr += node->value.element.num_attrs; + + if ((attr->name = strdup(name)) == NULL) + { + mxml_error("Unable to allocate memory for attribute '%s' in element %s!", + name, node->value.element.name); + return (-1); + } + + attr->value = value; + + node->value.element.num_attrs ++; + + return (0); +} + + +/* + * End of "$Id: mxml-attr.c 408 2010-09-19 05:26:46Z mike $". + */ diff --git a/xml/mxml-entity.c b/xml/mxml-entity.c new file mode 100644 index 0000000..c5c9f61 --- /dev/null +++ b/xml/mxml-entity.c @@ -0,0 +1,460 @@ +/* + * "$Id: mxml-entity.c 408 2010-09-19 05:26:46Z mike $" + * + * Character entity support code for Mini-XML, a small XML-like + * file parsing library. + * + * Copyright 2003-2010 by Michael R Sweet. + * + * These coded instructions, statements, and computer programs are the + * property of Michael R Sweet and are protected by Federal copyright + * law. Distribution and use rights are outlined in the file "COPYING" + * which should have been included with this file. If this file is + * missing or damaged, see the license at: + * + * http://www.minixml.org/ + * + * Contents: + * + * mxmlEntityAddCallback() - Add a callback to convert entities to + * Unicode. + * mxmlEntityGetName() - Get the name that corresponds to the + * character value. + * mxmlEntityGetValue() - Get the character corresponding to a named + * entity. + * mxmlEntityRemoveCallback() - Remove a callback. + * _mxml_entity_cb() - Lookup standard (X)HTML entities. + */ + +/* + * Include necessary headers... + */ + +#include "mxml-private.h" + + +/* + * 'mxmlEntityAddCallback()' - Add a callback to convert entities to Unicode. + */ + +int /* O - 0 on success, -1 on failure */ +mxmlEntityAddCallback( + mxml_entity_cb_t cb) /* I - Callback function to add */ +{ + _mxml_global_t *global = _mxml_global(); + /* Global data */ + + + if (global->num_entity_cbs < (int)(sizeof(global->entity_cbs) / sizeof(global->entity_cbs[0]))) + { + global->entity_cbs[global->num_entity_cbs] = cb; + global->num_entity_cbs ++; + + return (0); + } + else + { + mxml_error("Unable to add entity callback!"); + + return (-1); + } +} + + +/* + * 'mxmlEntityGetName()' - Get the name that corresponds to the character value. + * + * If val does not need to be represented by a named entity, NULL is returned. + */ + +const char * /* O - Entity name or NULL */ +mxmlEntityGetName(int val) /* I - Character value */ +{ + switch (val) + { + case '&' : + return ("amp"); + + case '<' : + return ("lt"); + + case '>' : + return ("gt"); + + case '\"' : + return ("quot"); + + default : + return (NULL); + } +} + + +/* + * 'mxmlEntityGetValue()' - Get the character corresponding to a named entity. + * + * The entity name can also be a numeric constant. -1 is returned if the + * name is not known. + */ + +int /* O - Character value or -1 on error */ +mxmlEntityGetValue(const char *name) /* I - Entity name */ +{ + int i; /* Looping var */ + int ch; /* Character value */ + _mxml_global_t *global = _mxml_global(); + /* Global data */ + + + for (i = 0; i < global->num_entity_cbs; i ++) + if ((ch = (global->entity_cbs[i])(name)) >= 0) + return (ch); + + return (-1); +} + + +/* + * 'mxmlEntityRemoveCallback()' - Remove a callback. + */ + +void +mxmlEntityRemoveCallback( + mxml_entity_cb_t cb) /* I - Callback function to remove */ +{ + int i; /* Looping var */ + _mxml_global_t *global = _mxml_global(); + /* Global data */ + + + for (i = 0; i < global->num_entity_cbs; i ++) + if (cb == global->entity_cbs[i]) + { + /* + * Remove the callback... + */ + + global->num_entity_cbs --; + + if (i < global->num_entity_cbs) + memmove(global->entity_cbs + i, global->entity_cbs + i + 1, + (global->num_entity_cbs - i) * sizeof(global->entity_cbs[0])); + + return; + } +} + + +/* + * '_mxml_entity_cb()' - Lookup standard (X)HTML entities. + */ + +int /* O - Unicode value or -1 */ +_mxml_entity_cb(const char *name) /* I - Entity name */ +{ + int diff, /* Difference between names */ + current, /* Current entity in search */ + first, /* First entity in search */ + last; /* Last entity in search */ + static const struct + { + const char *name; /* Entity name */ + int val; /* Character value */ + } entities[] = + { + { "AElig", 198 }, + { "Aacute", 193 }, + { "Acirc", 194 }, + { "Agrave", 192 }, + { "Alpha", 913 }, + { "Aring", 197 }, + { "Atilde", 195 }, + { "Auml", 196 }, + { "Beta", 914 }, + { "Ccedil", 199 }, + { "Chi", 935 }, + { "Dagger", 8225 }, + { "Delta", 916 }, + { "Dstrok", 208 }, + { "ETH", 208 }, + { "Eacute", 201 }, + { "Ecirc", 202 }, + { "Egrave", 200 }, + { "Epsilon", 917 }, + { "Eta", 919 }, + { "Euml", 203 }, + { "Gamma", 915 }, + { "Iacute", 205 }, + { "Icirc", 206 }, + { "Igrave", 204 }, + { "Iota", 921 }, + { "Iuml", 207 }, + { "Kappa", 922 }, + { "Lambda", 923 }, + { "Mu", 924 }, + { "Ntilde", 209 }, + { "Nu", 925 }, + { "OElig", 338 }, + { "Oacute", 211 }, + { "Ocirc", 212 }, + { "Ograve", 210 }, + { "Omega", 937 }, + { "Omicron", 927 }, + { "Oslash", 216 }, + { "Otilde", 213 }, + { "Ouml", 214 }, + { "Phi", 934 }, + { "Pi", 928 }, + { "Prime", 8243 }, + { "Psi", 936 }, + { "Rho", 929 }, + { "Scaron", 352 }, + { "Sigma", 931 }, + { "THORN", 222 }, + { "Tau", 932 }, + { "Theta", 920 }, + { "Uacute", 218 }, + { "Ucirc", 219 }, + { "Ugrave", 217 }, + { "Upsilon", 933 }, + { "Uuml", 220 }, + { "Xi", 926 }, + { "Yacute", 221 }, + { "Yuml", 376 }, + { "Zeta", 918 }, + { "aacute", 225 }, + { "acirc", 226 }, + { "acute", 180 }, + { "aelig", 230 }, + { "agrave", 224 }, + { "alefsym", 8501 }, + { "alpha", 945 }, + { "amp", '&' }, + { "and", 8743 }, + { "ang", 8736 }, + { "apos", '\'' }, + { "aring", 229 }, + { "asymp", 8776 }, + { "atilde", 227 }, + { "auml", 228 }, + { "bdquo", 8222 }, + { "beta", 946 }, + { "brkbar", 166 }, + { "brvbar", 166 }, + { "bull", 8226 }, + { "cap", 8745 }, + { "ccedil", 231 }, + { "cedil", 184 }, + { "cent", 162 }, + { "chi", 967 }, + { "circ", 710 }, + { "clubs", 9827 }, + { "cong", 8773 }, + { "copy", 169 }, + { "crarr", 8629 }, + { "cup", 8746 }, + { "curren", 164 }, + { "dArr", 8659 }, + { "dagger", 8224 }, + { "darr", 8595 }, + { "deg", 176 }, + { "delta", 948 }, + { "diams", 9830 }, + { "die", 168 }, + { "divide", 247 }, + { "eacute", 233 }, + { "ecirc", 234 }, + { "egrave", 232 }, + { "empty", 8709 }, + { "emsp", 8195 }, + { "ensp", 8194 }, + { "epsilon", 949 }, + { "equiv", 8801 }, + { "eta", 951 }, + { "eth", 240 }, + { "euml", 235 }, + { "euro", 8364 }, + { "exist", 8707 }, + { "fnof", 402 }, + { "forall", 8704 }, + { "frac12", 189 }, + { "frac14", 188 }, + { "frac34", 190 }, + { "frasl", 8260 }, + { "gamma", 947 }, + { "ge", 8805 }, + { "gt", '>' }, + { "hArr", 8660 }, + { "harr", 8596 }, + { "hearts", 9829 }, + { "hellip", 8230 }, + { "hibar", 175 }, + { "iacute", 237 }, + { "icirc", 238 }, + { "iexcl", 161 }, + { "igrave", 236 }, + { "image", 8465 }, + { "infin", 8734 }, + { "int", 8747 }, + { "iota", 953 }, + { "iquest", 191 }, + { "isin", 8712 }, + { "iuml", 239 }, + { "kappa", 954 }, + { "lArr", 8656 }, + { "lambda", 955 }, + { "lang", 9001 }, + { "laquo", 171 }, + { "larr", 8592 }, + { "lceil", 8968 }, + { "ldquo", 8220 }, + { "le", 8804 }, + { "lfloor", 8970 }, + { "lowast", 8727 }, + { "loz", 9674 }, + { "lrm", 8206 }, + { "lsaquo", 8249 }, + { "lsquo", 8216 }, + { "lt", '<' }, + { "macr", 175 }, + { "mdash", 8212 }, + { "micro", 181 }, + { "middot", 183 }, + { "minus", 8722 }, + { "mu", 956 }, + { "nabla", 8711 }, + { "nbsp", 160 }, + { "ndash", 8211 }, + { "ne", 8800 }, + { "ni", 8715 }, + { "not", 172 }, + { "notin", 8713 }, + { "nsub", 8836 }, + { "ntilde", 241 }, + { "nu", 957 }, + { "oacute", 243 }, + { "ocirc", 244 }, + { "oelig", 339 }, + { "ograve", 242 }, + { "oline", 8254 }, + { "omega", 969 }, + { "omicron", 959 }, + { "oplus", 8853 }, + { "or", 8744 }, + { "ordf", 170 }, + { "ordm", 186 }, + { "oslash", 248 }, + { "otilde", 245 }, + { "otimes", 8855 }, + { "ouml", 246 }, + { "para", 182 }, + { "part", 8706 }, + { "permil", 8240 }, + { "perp", 8869 }, + { "phi", 966 }, + { "pi", 960 }, + { "piv", 982 }, + { "plusmn", 177 }, + { "pound", 163 }, + { "prime", 8242 }, + { "prod", 8719 }, + { "prop", 8733 }, + { "psi", 968 }, + { "quot", '\"' }, + { "rArr", 8658 }, + { "radic", 8730 }, + { "rang", 9002 }, + { "raquo", 187 }, + { "rarr", 8594 }, + { "rceil", 8969 }, + { "rdquo", 8221 }, + { "real", 8476 }, + { "reg", 174 }, + { "rfloor", 8971 }, + { "rho", 961 }, + { "rlm", 8207 }, + { "rsaquo", 8250 }, + { "rsquo", 8217 }, + { "sbquo", 8218 }, + { "scaron", 353 }, + { "sdot", 8901 }, + { "sect", 167 }, + { "shy", 173 }, + { "sigma", 963 }, + { "sigmaf", 962 }, + { "sim", 8764 }, + { "spades", 9824 }, + { "sub", 8834 }, + { "sube", 8838 }, + { "sum", 8721 }, + { "sup", 8835 }, + { "sup1", 185 }, + { "sup2", 178 }, + { "sup3", 179 }, + { "supe", 8839 }, + { "szlig", 223 }, + { "tau", 964 }, + { "there4", 8756 }, + { "theta", 952 }, + { "thetasym", 977 }, + { "thinsp", 8201 }, + { "thorn", 254 }, + { "tilde", 732 }, + { "times", 215 }, + { "trade", 8482 }, + { "uArr", 8657 }, + { "uacute", 250 }, + { "uarr", 8593 }, + { "ucirc", 251 }, + { "ugrave", 249 }, + { "uml", 168 }, + { "upsih", 978 }, + { "upsilon", 965 }, + { "uuml", 252 }, + { "weierp", 8472 }, + { "xi", 958 }, + { "yacute", 253 }, + { "yen", 165 }, + { "yuml", 255 }, + { "zeta", 950 }, + { "zwj", 8205 }, + { "zwnj", 8204 } + }; + + + /* + * Do a binary search for the named entity... + */ + + first = 0; + last = (int)(sizeof(entities) / sizeof(entities[0]) - 1); + + while ((last - first) > 1) + { + current = (first + last) / 2; + + if ((diff = strcmp(name, entities[current].name)) == 0) + return (entities[current].val); + else if (diff < 0) + last = current; + else + first = current; + } + + /* + * If we get here, there is a small chance that there is still + * a match; check first and last... + */ + + if (!strcmp(name, entities[first].name)) + return (entities[first].val); + else if (!strcmp(name, entities[last].name)) + return (entities[last].val); + else + return (-1); +} + + +/* + * End of "$Id: mxml-entity.c 408 2010-09-19 05:26:46Z mike $". + */ diff --git a/xml/mxml-file.c b/xml/mxml-file.c new file mode 100644 index 0000000..c41ec96 --- /dev/null +++ b/xml/mxml-file.c @@ -0,0 +1,3080 @@ +/* + * "$Id: mxml-file.c 438 2011-03-24 05:47:51Z mike $" + * + * File loading code for Mini-XML, a small XML-like file parsing library. + * + * Copyright 2003-2011 by Michael R Sweet. + * + * These coded instructions, statements, and computer programs are the + * property of Michael R Sweet and are protected by Federal copyright + * law. Distribution and use rights are outlined in the file "COPYING" + * which should have been included with this file. If this file is + * missing or damaged, see the license at: + * + * http://www.minixml.org/ + * + * Contents: + * + * mxmlLoadFd() - Load a file descriptor into an XML node tree. + * mxmlLoadFile() - Load a file into an XML node tree. + * mxmlLoadString() - Load a string into an XML node tree. + * mxmlSaveAllocString() - Save an XML tree to an allocated string. + * mxmlSaveFd() - Save an XML tree to a file descriptor. + * mxmlSaveFile() - Save an XML tree to a file. + * mxmlSaveString() - Save an XML node tree to a string. + * mxmlSAXLoadFd() - Load a file descriptor into an XML node tree + * using a SAX callback. + * mxmlSAXLoadFile() - Load a file into an XML node tree + * using a SAX callback. + * mxmlSAXLoadString() - Load a string into an XML node tree + * using a SAX callback. + * mxmlSetCustomHandlers() - Set the handling functions for custom data. + * mxmlSetErrorCallback() - Set the error message callback. + * mxmlSetWrapMargin() - Set the wrap margin when saving XML data. + * mxml_add_char() - Add a character to a buffer, expanding as needed. + * mxml_fd_getc() - Read a character from a file descriptor. + * mxml_fd_putc() - Write a character to a file descriptor. + * mxml_fd_read() - Read a buffer of data from a file descriptor. + * mxml_fd_write() - Write a buffer of data to a file descriptor. + * mxml_file_getc() - Get a character from a file. + * mxml_file_putc() - Write a character to a file. + * mxml_get_entity() - Get the character corresponding to an entity... + * mxml_load_data() - Load data into an XML node tree. + * mxml_parse_element() - Parse an element for any attributes... + * mxml_string_getc() - Get a character from a string. + * mxml_string_putc() - Write a character to a string. + * mxml_write_name() - Write a name string. + * mxml_write_node() - Save an XML node to a file. + * mxml_write_string() - Write a string, escaping & and < as needed. + * mxml_write_ws() - Do whitespace callback... + */ + +/* + * Include necessary headers... + */ + +#ifndef WIN32 +# include +#endif /* !WIN32 */ +#include "mxml-private.h" + + +/* + * Character encoding... + */ + +#define ENCODE_UTF8 0 /* UTF-8 */ +#define ENCODE_UTF16BE 1 /* UTF-16 Big-Endian */ +#define ENCODE_UTF16LE 2 /* UTF-16 Little-Endian */ + + +/* + * Macro to test for a bad XML character... + */ + +#define mxml_bad_char(ch) ((ch) < ' ' && (ch) != '\n' && (ch) != '\r' && (ch) != '\t') + + +/* + * Types and structures... + */ + +typedef int (*_mxml_getc_cb_t)(void *, int *); +typedef int (*_mxml_putc_cb_t)(int, void *); + +typedef struct _mxml_fdbuf_s /**** File descriptor buffer ****/ +{ + int fd; /* File descriptor */ + unsigned char *current, /* Current position in buffer */ + *end, /* End of buffer */ + buffer[8192]; /* Character buffer */ +} _mxml_fdbuf_t; + + +/* + * Local functions... + */ + +static int mxml_add_char(int ch, char **ptr, char **buffer, + int *bufsize); +static int mxml_fd_getc(void *p, int *encoding); +static int mxml_fd_putc(int ch, void *p); +static int mxml_fd_read(_mxml_fdbuf_t *buf); +static int mxml_fd_write(_mxml_fdbuf_t *buf); +static int mxml_file_getc(void *p, int *encoding); +static int mxml_file_putc(int ch, void *p); +static int mxml_get_entity(mxml_node_t *parent, void *p, + int *encoding, + _mxml_getc_cb_t getc_cb); +static int mxml_isspace(int ch) + { + return (ch == ' ' || ch == '\t' || ch == '\r' || + ch == '\n'); + } +static mxml_node_t *mxml_load_data(mxml_node_t *top, void *p, + mxml_load_cb_t cb, + _mxml_getc_cb_t getc_cb, + mxml_sax_cb_t sax_cb, void *sax_data); +static int mxml_parse_element(mxml_node_t *node, void *p, + int *encoding, + _mxml_getc_cb_t getc_cb); +static int mxml_string_getc(void *p, int *encoding); +static int mxml_string_putc(int ch, void *p); +static int mxml_write_name(const char *s, void *p, + _mxml_putc_cb_t putc_cb); +static int mxml_write_node(mxml_node_t *node, void *p, + mxml_save_cb_t cb, int col, + _mxml_putc_cb_t putc_cb, + _mxml_global_t *global); +static int mxml_write_string(const char *s, void *p, + _mxml_putc_cb_t putc_cb); +static int mxml_write_ws(mxml_node_t *node, void *p, + mxml_save_cb_t cb, int ws, + int col, _mxml_putc_cb_t putc_cb); + + +/* + * 'mxmlLoadFd()' - Load a file descriptor into an XML node tree. + * + * The nodes in the specified file are added to the specified top node. + * If no top node is provided, the XML file MUST be well-formed with a + * single parent node like for the entire file. The callback + * function returns the value type that should be used for child nodes. + * If MXML_NO_CALLBACK is specified then all child nodes will be either + * MXML_ELEMENT or MXML_TEXT nodes. + * + * The constants MXML_INTEGER_CALLBACK, MXML_OPAQUE_CALLBACK, + * MXML_REAL_CALLBACK, and MXML_TEXT_CALLBACK are defined for loading + * child nodes of the specified type. + */ + +mxml_node_t * /* O - First node or NULL if the file could not be read. */ +mxmlLoadFd(mxml_node_t *top, /* I - Top node */ + int fd, /* I - File descriptor to read from */ + mxml_load_cb_t cb) /* I - Callback function or MXML_NO_CALLBACK */ +{ + _mxml_fdbuf_t buf; /* File descriptor buffer */ + + + /* + * Initialize the file descriptor buffer... + */ + + buf.fd = fd; + buf.current = buf.buffer; + buf.end = buf.buffer; + + /* + * Read the XML data... + */ + + return (mxml_load_data(top, &buf, cb, mxml_fd_getc, MXML_NO_CALLBACK, NULL)); +} + + +/* + * 'mxmlLoadFile()' - Load a file into an XML node tree. + * + * The nodes in the specified file are added to the specified top node. + * If no top node is provided, the XML file MUST be well-formed with a + * single parent node like for the entire file. The callback + * function returns the value type that should be used for child nodes. + * If MXML_NO_CALLBACK is specified then all child nodes will be either + * MXML_ELEMENT or MXML_TEXT nodes. + * + * The constants MXML_INTEGER_CALLBACK, MXML_OPAQUE_CALLBACK, + * MXML_REAL_CALLBACK, and MXML_TEXT_CALLBACK are defined for loading + * child nodes of the specified type. + */ + +mxml_node_t * /* O - First node or NULL if the file could not be read. */ +mxmlLoadFile(mxml_node_t *top, /* I - Top node */ + FILE *fp, /* I - File to read from */ + mxml_load_cb_t cb) /* I - Callback function or MXML_NO_CALLBACK */ +{ + /* + * Read the XML data... + */ + + return (mxml_load_data(top, fp, cb, mxml_file_getc, MXML_NO_CALLBACK, NULL)); +} + + +/* + * 'mxmlLoadString()' - Load a string into an XML node tree. + * + * The nodes in the specified string are added to the specified top node. + * If no top node is provided, the XML string MUST be well-formed with a + * single parent node like for the entire string. The callback + * function returns the value type that should be used for child nodes. + * If MXML_NO_CALLBACK is specified then all child nodes will be either + * MXML_ELEMENT or MXML_TEXT nodes. + * + * The constants MXML_INTEGER_CALLBACK, MXML_OPAQUE_CALLBACK, + * MXML_REAL_CALLBACK, and MXML_TEXT_CALLBACK are defined for loading + * child nodes of the specified type. + */ + +mxml_node_t * /* O - First node or NULL if the string has errors. */ +mxmlLoadString(mxml_node_t *top, /* I - Top node */ + const char *s, /* I - String to load */ + mxml_load_cb_t cb) /* I - Callback function or MXML_NO_CALLBACK */ +{ + /* + * Read the XML data... + */ + + return (mxml_load_data(top, (void *)&s, cb, mxml_string_getc, MXML_NO_CALLBACK, + NULL)); +} + + +/* + * 'mxmlSaveAllocString()' - Save an XML tree to an allocated string. + * + * This function returns a pointer to a string containing the textual + * representation of the XML node tree. The string should be freed + * using the free() function when you are done with it. NULL is returned + * if the node would produce an empty string or if the string cannot be + * allocated. + * + * The callback argument specifies a function that returns a whitespace + * string or NULL before and after each element. If MXML_NO_CALLBACK + * is specified, whitespace will only be added before MXML_TEXT nodes + * with leading whitespace and before attribute names inside opening + * element tags. + */ + +char * /* O - Allocated string or NULL */ +mxmlSaveAllocString( + mxml_node_t *node, /* I - Node to write */ + mxml_save_cb_t cb) /* I - Whitespace callback or MXML_NO_CALLBACK */ +{ + int bytes; /* Required bytes */ + char buffer[8192]; /* Temporary buffer */ + char *s; /* Allocated string */ + + + /* + * Write the node to the temporary buffer... + */ + + bytes = mxmlSaveString(node, buffer, sizeof(buffer), cb); + + if (bytes <= 0) + return (NULL); + + if (bytes < (int)(sizeof(buffer) - 1)) + { + /* + * Node fit inside the buffer, so just duplicate that string and + * return... + */ + + return (strdup(buffer)); + } + + /* + * Allocate a buffer of the required size and save the node to the + * new buffer... + */ + + if ((s = malloc(bytes + 1)) == NULL) + return (NULL); + + mxmlSaveString(node, s, bytes + 1, cb); + + /* + * Return the allocated string... + */ + + return (s); +} + + +/* + * 'mxmlSaveFd()' - Save an XML tree to a file descriptor. + * + * The callback argument specifies a function that returns a whitespace + * string or NULL before and after each element. If MXML_NO_CALLBACK + * is specified, whitespace will only be added before MXML_TEXT nodes + * with leading whitespace and before attribute names inside opening + * element tags. + */ + +int /* O - 0 on success, -1 on error. */ +mxmlSaveFd(mxml_node_t *node, /* I - Node to write */ + int fd, /* I - File descriptor to write to */ + mxml_save_cb_t cb) /* I - Whitespace callback or MXML_NO_CALLBACK */ +{ + int col; /* Final column */ + _mxml_fdbuf_t buf; /* File descriptor buffer */ + _mxml_global_t *global = _mxml_global(); + /* Global data */ + + + /* + * Initialize the file descriptor buffer... + */ + + buf.fd = fd; + buf.current = buf.buffer; + buf.end = buf.buffer + sizeof(buf.buffer); + + /* + * Write the node... + */ + + if ((col = mxml_write_node(node, &buf, cb, 0, mxml_fd_putc, global)) < 0) + return (-1); + + if (col > 0) + if (mxml_fd_putc('\n', &buf) < 0) + return (-1); + + /* + * Flush and return... + */ + + return (mxml_fd_write(&buf)); +} + + +/* + * 'mxmlSaveFile()' - Save an XML tree to a file. + * + * The callback argument specifies a function that returns a whitespace + * string or NULL before and after each element. If MXML_NO_CALLBACK + * is specified, whitespace will only be added before MXML_TEXT nodes + * with leading whitespace and before attribute names inside opening + * element tags. + */ + +int /* O - 0 on success, -1 on error. */ +mxmlSaveFile(mxml_node_t *node, /* I - Node to write */ + FILE *fp, /* I - File to write to */ + mxml_save_cb_t cb) /* I - Whitespace callback or MXML_NO_CALLBACK */ +{ + int col; /* Final column */ + _mxml_global_t *global = _mxml_global(); + /* Global data */ + + + /* + * Write the node... + */ + + if ((col = mxml_write_node(node, fp, cb, 0, mxml_file_putc, global)) < 0) + return (-1); + + if (col > 0) + if (putc('\n', fp) < 0) + return (-1); + + /* + * Return 0 (success)... + */ + + return (0); +} + + +/* + * 'mxmlSaveString()' - Save an XML node tree to a string. + * + * This function returns the total number of bytes that would be + * required for the string but only copies (bufsize - 1) characters + * into the specified buffer. + * + * The callback argument specifies a function that returns a whitespace + * string or NULL before and after each element. If MXML_NO_CALLBACK + * is specified, whitespace will only be added before MXML_TEXT nodes + * with leading whitespace and before attribute names inside opening + * element tags. + */ + +int /* O - Size of string */ +mxmlSaveString(mxml_node_t *node, /* I - Node to write */ + char *buffer, /* I - String buffer */ + int bufsize, /* I - Size of string buffer */ + mxml_save_cb_t cb) /* I - Whitespace callback or MXML_NO_CALLBACK */ +{ + int col; /* Final column */ + char *ptr[2]; /* Pointers for putc_cb */ + _mxml_global_t *global = _mxml_global(); + /* Global data */ + + + /* + * Write the node... + */ + + ptr[0] = buffer; + ptr[1] = buffer + bufsize; + + if ((col = mxml_write_node(node, ptr, cb, 0, mxml_string_putc, global)) < 0) + return (-1); + + if (col > 0) + mxml_string_putc('\n', ptr); + + /* + * Nul-terminate the buffer... + */ + + if (ptr[0] >= ptr[1]) + buffer[bufsize - 1] = '\0'; + else + ptr[0][0] = '\0'; + + /* + * Return the number of characters... + */ + + return (ptr[0] - buffer); +} + + +/* + * 'mxmlSAXLoadFd()' - Load a file descriptor into an XML node tree + * using a SAX callback. + * + * The nodes in the specified file are added to the specified top node. + * If no top node is provided, the XML file MUST be well-formed with a + * single parent node like for the entire file. The callback + * function returns the value type that should be used for child nodes. + * If MXML_NO_CALLBACK is specified then all child nodes will be either + * MXML_ELEMENT or MXML_TEXT nodes. + * + * The constants MXML_INTEGER_CALLBACK, MXML_OPAQUE_CALLBACK, + * MXML_REAL_CALLBACK, and MXML_TEXT_CALLBACK are defined for loading + * child nodes of the specified type. + * + * The SAX callback must call mxmlRetain() for any nodes that need to + * be kept for later use. Otherwise, nodes are deleted when the parent + * node is closed or after each data, comment, CDATA, or directive node. + * + * @since Mini-XML 2.3@ + */ + +mxml_node_t * /* O - First node or NULL if the file could not be read. */ +mxmlSAXLoadFd(mxml_node_t *top, /* I - Top node */ + int fd, /* I - File descriptor to read from */ + mxml_load_cb_t cb, /* I - Callback function or MXML_NO_CALLBACK */ + mxml_sax_cb_t sax_cb, /* I - SAX callback or MXML_NO_CALLBACK */ + void *sax_data) /* I - SAX user data */ +{ + _mxml_fdbuf_t buf; /* File descriptor buffer */ + + + /* + * Initialize the file descriptor buffer... + */ + + buf.fd = fd; + buf.current = buf.buffer; + buf.end = buf.buffer; + + /* + * Read the XML data... + */ + + return (mxml_load_data(top, &buf, cb, mxml_fd_getc, sax_cb, sax_data)); +} + + +/* + * 'mxmlSAXLoadFile()' - Load a file into an XML node tree + * using a SAX callback. + * + * The nodes in the specified file are added to the specified top node. + * If no top node is provided, the XML file MUST be well-formed with a + * single parent node like for the entire file. The callback + * function returns the value type that should be used for child nodes. + * If MXML_NO_CALLBACK is specified then all child nodes will be either + * MXML_ELEMENT or MXML_TEXT nodes. + * + * The constants MXML_INTEGER_CALLBACK, MXML_OPAQUE_CALLBACK, + * MXML_REAL_CALLBACK, and MXML_TEXT_CALLBACK are defined for loading + * child nodes of the specified type. + * + * The SAX callback must call mxmlRetain() for any nodes that need to + * be kept for later use. Otherwise, nodes are deleted when the parent + * node is closed or after each data, comment, CDATA, or directive node. + * + * @since Mini-XML 2.3@ + */ + +mxml_node_t * /* O - First node or NULL if the file could not be read. */ +mxmlSAXLoadFile( + mxml_node_t *top, /* I - Top node */ + FILE *fp, /* I - File to read from */ + mxml_load_cb_t cb, /* I - Callback function or MXML_NO_CALLBACK */ + mxml_sax_cb_t sax_cb, /* I - SAX callback or MXML_NO_CALLBACK */ + void *sax_data) /* I - SAX user data */ +{ + /* + * Read the XML data... + */ + + return (mxml_load_data(top, fp, cb, mxml_file_getc, sax_cb, sax_data)); +} + + +/* + * 'mxmlSAXLoadString()' - Load a string into an XML node tree + * using a SAX callback. + * + * The nodes in the specified string are added to the specified top node. + * If no top node is provided, the XML string MUST be well-formed with a + * single parent node like for the entire string. The callback + * function returns the value type that should be used for child nodes. + * If MXML_NO_CALLBACK is specified then all child nodes will be either + * MXML_ELEMENT or MXML_TEXT nodes. + * + * The constants MXML_INTEGER_CALLBACK, MXML_OPAQUE_CALLBACK, + * MXML_REAL_CALLBACK, and MXML_TEXT_CALLBACK are defined for loading + * child nodes of the specified type. + * + * The SAX callback must call mxmlRetain() for any nodes that need to + * be kept for later use. Otherwise, nodes are deleted when the parent + * node is closed or after each data, comment, CDATA, or directive node. + * + * @since Mini-XML 2.3@ + */ + +mxml_node_t * /* O - First node or NULL if the string has errors. */ +mxmlSAXLoadString( + mxml_node_t *top, /* I - Top node */ + const char *s, /* I - String to load */ + mxml_load_cb_t cb, /* I - Callback function or MXML_NO_CALLBACK */ + mxml_sax_cb_t sax_cb, /* I - SAX callback or MXML_NO_CALLBACK */ + void *sax_data) /* I - SAX user data */ +{ + /* + * Read the XML data... + */ + + return (mxml_load_data(top, (void *)&s, cb, mxml_string_getc, sax_cb, sax_data)); +} + + +/* + * 'mxmlSetCustomHandlers()' - Set the handling functions for custom data. + * + * The load function accepts a node pointer and a data string and must + * return 0 on success and non-zero on error. + * + * The save function accepts a node pointer and must return a malloc'd + * string on success and NULL on error. + * + */ + +void +mxmlSetCustomHandlers( + mxml_custom_load_cb_t load, /* I - Load function */ + mxml_custom_save_cb_t save) /* I - Save function */ +{ + _mxml_global_t *global = _mxml_global(); + /* Global data */ + + + global->custom_load_cb = load; + global->custom_save_cb = save; +} + + +/* + * 'mxmlSetErrorCallback()' - Set the error message callback. + */ + +void +mxmlSetErrorCallback(mxml_error_cb_t cb)/* I - Error callback function */ +{ + _mxml_global_t *global = _mxml_global(); + /* Global data */ + + + global->error_cb = cb; +} + + +/* + * 'mxmlSetWrapMargin()' - Set the wrap margin when saving XML data. + * + * Wrapping is disabled when "column" is 0. + * + * @since Mini-XML 2.3@ + */ + +void +mxmlSetWrapMargin(int column) /* I - Column for wrapping, 0 to disable wrapping */ +{ + _mxml_global_t *global = _mxml_global(); + /* Global data */ + + + global->wrap = column; +} + + +/* + * 'mxml_add_char()' - Add a character to a buffer, expanding as needed. + */ + +static int /* O - 0 on success, -1 on error */ +mxml_add_char(int ch, /* I - Character to add */ + char **bufptr, /* IO - Current position in buffer */ + char **buffer, /* IO - Current buffer */ + int *bufsize) /* IO - Current buffer size */ +{ + char *newbuffer; /* New buffer value */ + + + if (*bufptr >= (*buffer + *bufsize - 4)) + { + /* + * Increase the size of the buffer... + */ + + if (*bufsize < 1024) + (*bufsize) *= 2; + else + (*bufsize) += 1024; + + if ((newbuffer = realloc(*buffer, *bufsize)) == NULL) + { + free(*buffer); + + mxml_error("Unable to expand string buffer to %d bytes!", *bufsize); + + return (-1); + } + + *bufptr = newbuffer + (*bufptr - *buffer); + *buffer = newbuffer; + } + + if (ch < 0x80) + { + /* + * Single byte ASCII... + */ + + *(*bufptr)++ = ch; + } + else if (ch < 0x800) + { + /* + * Two-byte UTF-8... + */ + + *(*bufptr)++ = 0xc0 | (ch >> 6); + *(*bufptr)++ = 0x80 | (ch & 0x3f); + } + else if (ch < 0x10000) + { + /* + * Three-byte UTF-8... + */ + + *(*bufptr)++ = 0xe0 | (ch >> 12); + *(*bufptr)++ = 0x80 | ((ch >> 6) & 0x3f); + *(*bufptr)++ = 0x80 | (ch & 0x3f); + } + else + { + /* + * Four-byte UTF-8... + */ + + *(*bufptr)++ = 0xf0 | (ch >> 18); + *(*bufptr)++ = 0x80 | ((ch >> 12) & 0x3f); + *(*bufptr)++ = 0x80 | ((ch >> 6) & 0x3f); + *(*bufptr)++ = 0x80 | (ch & 0x3f); + } + + return (0); +} + + +/* + * 'mxml_fd_getc()' - Read a character from a file descriptor. + */ + +static int /* O - Character or EOF */ +mxml_fd_getc(void *p, /* I - File descriptor buffer */ + int *encoding) /* IO - Encoding */ +{ + _mxml_fdbuf_t *buf; /* File descriptor buffer */ + int ch, /* Current character */ + temp; /* Temporary character */ + + + /* + * Grab the next character in the buffer... + */ + + buf = (_mxml_fdbuf_t *)p; + + if (buf->current >= buf->end) + if (mxml_fd_read(buf) < 0) + return (EOF); + + ch = *(buf->current)++; + + switch (*encoding) + { + case ENCODE_UTF8 : + /* + * Got a UTF-8 character; convert UTF-8 to Unicode and return... + */ + + if (!(ch & 0x80)) + { +#if DEBUG > 1 + printf("mxml_fd_getc: %c (0x%04x)\n", ch < ' ' ? '.' : ch, ch); +#endif /* DEBUG > 1 */ + + if (mxml_bad_char(ch)) + { + mxml_error("Bad control character 0x%02x not allowed by XML standard!", + ch); + return (EOF); + } + + return (ch); + } + else if (ch == 0xfe) + { + /* + * UTF-16 big-endian BOM? + */ + + if (buf->current >= buf->end) + if (mxml_fd_read(buf) < 0) + return (EOF); + + ch = *(buf->current)++; + + if (ch != 0xff) + return (EOF); + + *encoding = ENCODE_UTF16BE; + + return (mxml_fd_getc(p, encoding)); + } + else if (ch == 0xff) + { + /* + * UTF-16 little-endian BOM? + */ + + if (buf->current >= buf->end) + if (mxml_fd_read(buf) < 0) + return (EOF); + + ch = *(buf->current)++; + + if (ch != 0xfe) + return (EOF); + + *encoding = ENCODE_UTF16LE; + + return (mxml_fd_getc(p, encoding)); + } + else if ((ch & 0xe0) == 0xc0) + { + /* + * Two-byte value... + */ + + if (buf->current >= buf->end) + if (mxml_fd_read(buf) < 0) + return (EOF); + + temp = *(buf->current)++; + + if ((temp & 0xc0) != 0x80) + return (EOF); + + ch = ((ch & 0x1f) << 6) | (temp & 0x3f); + + if (ch < 0x80) + { + mxml_error("Invalid UTF-8 sequence for character 0x%04x!", ch); + return (EOF); + } + } + else if ((ch & 0xf0) == 0xe0) + { + /* + * Three-byte value... + */ + + if (buf->current >= buf->end) + if (mxml_fd_read(buf) < 0) + return (EOF); + + temp = *(buf->current)++; + + if ((temp & 0xc0) != 0x80) + return (EOF); + + ch = ((ch & 0x0f) << 6) | (temp & 0x3f); + + if (buf->current >= buf->end) + if (mxml_fd_read(buf) < 0) + return (EOF); + + temp = *(buf->current)++; + + if ((temp & 0xc0) != 0x80) + return (EOF); + + ch = (ch << 6) | (temp & 0x3f); + + if (ch < 0x800) + { + mxml_error("Invalid UTF-8 sequence for character 0x%04x!", ch); + return (EOF); + } + + /* + * Ignore (strip) Byte Order Mark (BOM)... + */ + + if (ch == 0xfeff) + return (mxml_fd_getc(p, encoding)); + } + else if ((ch & 0xf8) == 0xf0) + { + /* + * Four-byte value... + */ + + if (buf->current >= buf->end) + if (mxml_fd_read(buf) < 0) + return (EOF); + + temp = *(buf->current)++; + + if ((temp & 0xc0) != 0x80) + return (EOF); + + ch = ((ch & 0x07) << 6) | (temp & 0x3f); + + if (buf->current >= buf->end) + if (mxml_fd_read(buf) < 0) + return (EOF); + + temp = *(buf->current)++; + + if ((temp & 0xc0) != 0x80) + return (EOF); + + ch = (ch << 6) | (temp & 0x3f); + + if (buf->current >= buf->end) + if (mxml_fd_read(buf) < 0) + return (EOF); + + temp = *(buf->current)++; + + if ((temp & 0xc0) != 0x80) + return (EOF); + + ch = (ch << 6) | (temp & 0x3f); + + if (ch < 0x10000) + { + mxml_error("Invalid UTF-8 sequence for character 0x%04x!", ch); + return (EOF); + } + } + else + return (EOF); + break; + + case ENCODE_UTF16BE : + /* + * Read UTF-16 big-endian char... + */ + + if (buf->current >= buf->end) + if (mxml_fd_read(buf) < 0) + return (EOF); + + temp = *(buf->current)++; + + ch = (ch << 8) | temp; + + if (mxml_bad_char(ch)) + { + mxml_error("Bad control character 0x%02x not allowed by XML standard!", + ch); + return (EOF); + } + else if (ch >= 0xd800 && ch <= 0xdbff) + { + /* + * Multi-word UTF-16 char... + */ + + int lch; + + if (buf->current >= buf->end) + if (mxml_fd_read(buf) < 0) + return (EOF); + + lch = *(buf->current)++; + + if (buf->current >= buf->end) + if (mxml_fd_read(buf) < 0) + return (EOF); + + temp = *(buf->current)++; + + lch = (lch << 8) | temp; + + if (lch < 0xdc00 || lch >= 0xdfff) + return (EOF); + + ch = (((ch & 0x3ff) << 10) | (lch & 0x3ff)) + 0x10000; + } + break; + + case ENCODE_UTF16LE : + /* + * Read UTF-16 little-endian char... + */ + + if (buf->current >= buf->end) + if (mxml_fd_read(buf) < 0) + return (EOF); + + temp = *(buf->current)++; + + ch |= (temp << 8); + + if (mxml_bad_char(ch)) + { + mxml_error("Bad control character 0x%02x not allowed by XML standard!", + ch); + return (EOF); + } + else if (ch >= 0xd800 && ch <= 0xdbff) + { + /* + * Multi-word UTF-16 char... + */ + + int lch; + + if (buf->current >= buf->end) + if (mxml_fd_read(buf) < 0) + return (EOF); + + lch = *(buf->current)++; + + if (buf->current >= buf->end) + if (mxml_fd_read(buf) < 0) + return (EOF); + + temp = *(buf->current)++; + + lch |= (temp << 8); + + if (lch < 0xdc00 || lch >= 0xdfff) + return (EOF); + + ch = (((ch & 0x3ff) << 10) | (lch & 0x3ff)) + 0x10000; + } + break; + } + +#if DEBUG > 1 + printf("mxml_fd_getc: %c (0x%04x)\n", ch < ' ' ? '.' : ch, ch); +#endif /* DEBUG > 1 */ + + return (ch); +} + + +/* + * 'mxml_fd_putc()' - Write a character to a file descriptor. + */ + +static int /* O - 0 on success, -1 on error */ +mxml_fd_putc(int ch, /* I - Character */ + void *p) /* I - File descriptor buffer */ +{ + _mxml_fdbuf_t *buf; /* File descriptor buffer */ + + + /* + * Flush the write buffer as needed... + */ + + buf = (_mxml_fdbuf_t *)p; + + if (buf->current >= buf->end) + if (mxml_fd_write(buf) < 0) + return (-1); + + *(buf->current)++ = ch; + + /* + * Return successfully... + */ + + return (0); +} + + +/* + * 'mxml_fd_read()' - Read a buffer of data from a file descriptor. + */ + +static int /* O - 0 on success, -1 on error */ +mxml_fd_read(_mxml_fdbuf_t *buf) /* I - File descriptor buffer */ +{ + int bytes; /* Bytes read... */ + + + /* + * Range check input... + */ + + if (!buf) + return (-1); + + /* + * Read from the file descriptor... + */ + + while ((bytes = read(buf->fd, buf->buffer, sizeof(buf->buffer))) < 0) +#ifdef EINTR + if (errno != EAGAIN && errno != EINTR) +#else + if (errno != EAGAIN) +#endif /* EINTR */ + return (-1); + + if (bytes == 0) + return (-1); + + /* + * Update the pointers and return success... + */ + + buf->current = buf->buffer; + buf->end = buf->buffer + bytes; + + return (0); +} + + +/* + * 'mxml_fd_write()' - Write a buffer of data to a file descriptor. + */ + +static int /* O - 0 on success, -1 on error */ +mxml_fd_write(_mxml_fdbuf_t *buf) /* I - File descriptor buffer */ +{ + int bytes; /* Bytes written */ + unsigned char *ptr; /* Pointer into buffer */ + + + /* + * Range check... + */ + + if (!buf) + return (-1); + + /* + * Return 0 if there is nothing to write... + */ + + if (buf->current == buf->buffer) + return (0); + + /* + * Loop until we have written everything... + */ + + for (ptr = buf->buffer; ptr < buf->current; ptr += bytes) + if ((bytes = write(buf->fd, ptr, buf->current - ptr)) < 0) + return (-1); + + /* + * All done, reset pointers and return success... + */ + + buf->current = buf->buffer; + + return (0); +} + + +/* + * 'mxml_file_getc()' - Get a character from a file. + */ + +static int /* O - Character or EOF */ +mxml_file_getc(void *p, /* I - Pointer to file */ + int *encoding) /* IO - Encoding */ +{ + int ch, /* Character from file */ + temp; /* Temporary character */ + FILE *fp; /* Pointer to file */ + + + /* + * Read a character from the file and see if it is EOF or ASCII... + */ + + fp = (FILE *)p; + ch = getc(fp); + + if (ch == EOF) + return (EOF); + + switch (*encoding) + { + case ENCODE_UTF8 : + /* + * Got a UTF-8 character; convert UTF-8 to Unicode and return... + */ + + if (!(ch & 0x80)) + { + if (mxml_bad_char(ch)) + { + mxml_error("Bad control character 0x%02x not allowed by XML standard!", + ch); + return (EOF); + } + +#if DEBUG > 1 + printf("mxml_file_getc: %c (0x%04x)\n", ch < ' ' ? '.' : ch, ch); +#endif /* DEBUG > 1 */ + + return (ch); + } + else if (ch == 0xfe) + { + /* + * UTF-16 big-endian BOM? + */ + + ch = getc(fp); + if (ch != 0xff) + return (EOF); + + *encoding = ENCODE_UTF16BE; + + return (mxml_file_getc(p, encoding)); + } + else if (ch == 0xff) + { + /* + * UTF-16 little-endian BOM? + */ + + ch = getc(fp); + if (ch != 0xfe) + return (EOF); + + *encoding = ENCODE_UTF16LE; + + return (mxml_file_getc(p, encoding)); + } + else if ((ch & 0xe0) == 0xc0) + { + /* + * Two-byte value... + */ + + if ((temp = getc(fp)) == EOF || (temp & 0xc0) != 0x80) + return (EOF); + + ch = ((ch & 0x1f) << 6) | (temp & 0x3f); + + if (ch < 0x80) + { + mxml_error("Invalid UTF-8 sequence for character 0x%04x!", ch); + return (EOF); + } + } + else if ((ch & 0xf0) == 0xe0) + { + /* + * Three-byte value... + */ + + if ((temp = getc(fp)) == EOF || (temp & 0xc0) != 0x80) + return (EOF); + + ch = ((ch & 0x0f) << 6) | (temp & 0x3f); + + if ((temp = getc(fp)) == EOF || (temp & 0xc0) != 0x80) + return (EOF); + + ch = (ch << 6) | (temp & 0x3f); + + if (ch < 0x800) + { + mxml_error("Invalid UTF-8 sequence for character 0x%04x!", ch); + return (EOF); + } + + /* + * Ignore (strip) Byte Order Mark (BOM)... + */ + + if (ch == 0xfeff) + return (mxml_file_getc(p, encoding)); + } + else if ((ch & 0xf8) == 0xf0) + { + /* + * Four-byte value... + */ + + if ((temp = getc(fp)) == EOF || (temp & 0xc0) != 0x80) + return (EOF); + + ch = ((ch & 0x07) << 6) | (temp & 0x3f); + + if ((temp = getc(fp)) == EOF || (temp & 0xc0) != 0x80) + return (EOF); + + ch = (ch << 6) | (temp & 0x3f); + + if ((temp = getc(fp)) == EOF || (temp & 0xc0) != 0x80) + return (EOF); + + ch = (ch << 6) | (temp & 0x3f); + + if (ch < 0x10000) + { + mxml_error("Invalid UTF-8 sequence for character 0x%04x!", ch); + return (EOF); + } + } + else + return (EOF); + break; + + case ENCODE_UTF16BE : + /* + * Read UTF-16 big-endian char... + */ + + ch = (ch << 8) | getc(fp); + + if (mxml_bad_char(ch)) + { + mxml_error("Bad control character 0x%02x not allowed by XML standard!", + ch); + return (EOF); + } + else if (ch >= 0xd800 && ch <= 0xdbff) + { + /* + * Multi-word UTF-16 char... + */ + + int lch = (getc(fp) << 8) | getc(fp); + + if (lch < 0xdc00 || lch >= 0xdfff) + return (EOF); + + ch = (((ch & 0x3ff) << 10) | (lch & 0x3ff)) + 0x10000; + } + break; + + case ENCODE_UTF16LE : + /* + * Read UTF-16 little-endian char... + */ + + ch |= (getc(fp) << 8); + + if (mxml_bad_char(ch)) + { + mxml_error("Bad control character 0x%02x not allowed by XML standard!", + ch); + return (EOF); + } + else if (ch >= 0xd800 && ch <= 0xdbff) + { + /* + * Multi-word UTF-16 char... + */ + + int lch = getc(fp) | (getc(fp) << 8); + + if (lch < 0xdc00 || lch >= 0xdfff) + return (EOF); + + ch = (((ch & 0x3ff) << 10) | (lch & 0x3ff)) + 0x10000; + } + break; + } + +#if DEBUG > 1 + printf("mxml_file_getc: %c (0x%04x)\n", ch < ' ' ? '.' : ch, ch); +#endif /* DEBUG > 1 */ + + return (ch); +} + + +/* + * 'mxml_file_putc()' - Write a character to a file. + */ + +static int /* O - 0 on success, -1 on failure */ +mxml_file_putc(int ch, /* I - Character to write */ + void *p) /* I - Pointer to file */ +{ + return (putc(ch, (FILE *)p) == EOF ? -1 : 0); +} + + +/* + * 'mxml_get_entity()' - Get the character corresponding to an entity... + */ + +static int /* O - Character value or EOF on error */ +mxml_get_entity(mxml_node_t *parent, /* I - Parent node */ + void *p, /* I - Pointer to source */ + int *encoding, /* IO - Character encoding */ + int (*getc_cb)(void *, int *)) + /* I - Get character function */ +{ + int ch; /* Current character */ + char entity[64], /* Entity string */ + *entptr; /* Pointer into entity */ + + + entptr = entity; + + while ((ch = (*getc_cb)(p, encoding)) != EOF) + if (ch > 126 || (!isalnum(ch) && ch != '#')) + break; + else if (entptr < (entity + sizeof(entity) - 1)) + *entptr++ = ch; + else + { + mxml_error("Entity name too long under parent <%s>!", + parent ? parent->value.element.name : "null"); + break; + } + + *entptr = '\0'; + + if (ch != ';') + { + mxml_error("Character entity \"%s\" not terminated under parent <%s>!", + entity, parent ? parent->value.element.name : "null"); + return (EOF); + } + + if (entity[0] == '#') + { + if (entity[1] == 'x') + ch = strtol(entity + 2, NULL, 16); + else + ch = strtol(entity + 1, NULL, 10); + } + else if ((ch = mxmlEntityGetValue(entity)) < 0) + mxml_error("Entity name \"%s;\" not supported under parent <%s>!", + entity, parent ? parent->value.element.name : "null"); + + if (mxml_bad_char(ch)) + { + mxml_error("Bad control character 0x%02x under parent <%s> not allowed by XML standard!", + ch, parent ? parent->value.element.name : "null"); + return (EOF); + } + + return (ch); +} + + +/* + * 'mxml_load_data()' - Load data into an XML node tree. + */ + +static mxml_node_t * /* O - First node or NULL if the file could not be read. */ +mxml_load_data( + mxml_node_t *top, /* I - Top node */ + void *p, /* I - Pointer to data */ + mxml_load_cb_t cb, /* I - Callback function or MXML_NO_CALLBACK */ + _mxml_getc_cb_t getc_cb, /* I - Read function */ + mxml_sax_cb_t sax_cb, /* I - SAX callback or MXML_NO_CALLBACK */ + void *sax_data) /* I - SAX user data */ +{ + mxml_node_t *node, /* Current node */ + *first, /* First node added */ + *parent; /* Current parent node */ + int ch, /* Character from file */ + whitespace; /* Non-zero if whitespace seen */ + char *buffer, /* String buffer */ + *bufptr; /* Pointer into buffer */ + int bufsize; /* Size of buffer */ + mxml_type_t type; /* Current node type */ + int encoding; /* Character encoding */ + _mxml_global_t *global = _mxml_global(); + /* Global data */ + static const char * const types[] = /* Type strings... */ + { + "MXML_ELEMENT", /* XML element with attributes */ + "MXML_INTEGER", /* Integer value */ + "MXML_OPAQUE", /* Opaque string */ + "MXML_REAL", /* Real value */ + "MXML_TEXT", /* Text fragment */ + "MXML_CUSTOM" /* Custom data */ + }; + + + /* + * Read elements and other nodes from the file... + */ + + if ((buffer = malloc(64)) == NULL) + { + mxml_error("Unable to allocate string buffer!"); + return (NULL); + } + + bufsize = 64; + bufptr = buffer; + parent = top; + first = NULL; + whitespace = 0; + encoding = ENCODE_UTF8; + + if (cb && parent) + type = (*cb)(parent); + else + type = MXML_TEXT; + + while ((ch = (*getc_cb)(p, &encoding)) != EOF) + { + if ((ch == '<' || + (mxml_isspace(ch) && type != MXML_OPAQUE && type != MXML_CUSTOM)) && + bufptr > buffer) + { + /* + * Add a new value node... + */ + + *bufptr = '\0'; + + switch (type) + { + case MXML_INTEGER : + node = mxmlNewInteger(parent, strtol(buffer, &bufptr, 0)); + break; + + case MXML_OPAQUE : + node = mxmlNewOpaque(parent, buffer); + break; + + case MXML_REAL : + node = mxmlNewReal(parent, strtod(buffer, &bufptr)); + break; + + case MXML_TEXT : + node = mxmlNewText(parent, whitespace, buffer); + break; + + case MXML_CUSTOM : + if (global->custom_load_cb) + { + /* + * Use the callback to fill in the custom data... + */ + + node = mxmlNewCustom(parent, NULL, NULL); + + if ((*global->custom_load_cb)(node, buffer)) + { + mxml_error("Bad custom value '%s' in parent <%s>!", + buffer, parent ? parent->value.element.name : "null"); + mxmlDelete(node); + node = NULL; + } + break; + } + + default : /* Ignore... */ + node = NULL; + break; + } + + if (*bufptr) + { + /* + * Bad integer/real number value... + */ + + mxml_error("Bad %s value '%s' in parent <%s>!", + type == MXML_INTEGER ? "integer" : "real", buffer, + parent ? parent->value.element.name : "null"); + break; + } + + bufptr = buffer; + whitespace = mxml_isspace(ch) && type == MXML_TEXT; + + if (!node && type != MXML_IGNORE) + { + /* + * Print error and return... + */ + + mxml_error("Unable to add value node of type %s to parent <%s>!", + types[type], parent ? parent->value.element.name : "null"); + goto error; + } + + if (sax_cb) + { + (*sax_cb)(node, MXML_SAX_DATA, sax_data); + + if (!mxmlRelease(node)) + node = NULL; + } + + if (!first && node) + first = node; + } + else if (mxml_isspace(ch) && type == MXML_TEXT) + whitespace = 1; + + /* + * Add lone whitespace node if we have an element and existing + * whitespace... + */ + + if (ch == '<' && whitespace && type == MXML_TEXT) + { + if (parent) + { + node = mxmlNewText(parent, whitespace, ""); + + if (sax_cb) + { + (*sax_cb)(node, MXML_SAX_DATA, sax_data); + + if (!mxmlRelease(node)) + node = NULL; + } + + if (!first && node) + first = node; + } + + whitespace = 0; + } + + if (ch == '<') + { + /* + * Start of open/close tag... + */ + + bufptr = buffer; + + while ((ch = (*getc_cb)(p, &encoding)) != EOF) + if (mxml_isspace(ch) || ch == '>' || (ch == '/' && bufptr > buffer)) + break; + else if (ch == '<') + { + mxml_error("Bare < in element!"); + goto error; + } + else if (ch == '&') + { + if ((ch = mxml_get_entity(parent, p, &encoding, getc_cb)) == EOF) + goto error; + + if (mxml_add_char(ch, &bufptr, &buffer, &bufsize)) + goto error; + } + else if (mxml_add_char(ch, &bufptr, &buffer, &bufsize)) + goto error; + else if (((bufptr - buffer) == 1 && buffer[0] == '?') || + ((bufptr - buffer) == 3 && !strncmp(buffer, "!--", 3)) || + ((bufptr - buffer) == 8 && !strncmp(buffer, "![CDATA[", 8))) + break; + + *bufptr = '\0'; + + if (!strcmp(buffer, "!--")) + { + /* + * Gather rest of comment... + */ + + while ((ch = (*getc_cb)(p, &encoding)) != EOF) + { + if (ch == '>' && bufptr > (buffer + 4) && + bufptr[-3] != '-' && bufptr[-2] == '-' && bufptr[-1] == '-') + break; + else if (mxml_add_char(ch, &bufptr, &buffer, &bufsize)) + goto error; + } + + /* + * Error out if we didn't get the whole comment... + */ + + if (ch != '>') + { + /* + * Print error and return... + */ + + mxml_error("Early EOF in comment node!"); + goto error; + } + + + /* + * Otherwise add this as an element under the current parent... + */ + + *bufptr = '\0'; + + if (!parent && first) + { + /* + * There can only be one root element! + */ + + mxml_error("<%s> cannot be a second root node after <%s>", + buffer, first->value.element.name); + goto error; + } + + if ((node = mxmlNewElement(parent, buffer)) == NULL) + { + /* + * Just print error for now... + */ + + mxml_error("Unable to add comment node to parent <%s>!", + parent ? parent->value.element.name : "null"); + break; + } + + if (sax_cb) + { + (*sax_cb)(node, MXML_SAX_COMMENT, sax_data); + + if (!mxmlRelease(node)) + node = NULL; + } + + if (node && !first) + first = node; + } + else if (!strcmp(buffer, "![CDATA[")) + { + /* + * Gather CDATA section... + */ + + while ((ch = (*getc_cb)(p, &encoding)) != EOF) + { + if (ch == '>' && !strncmp(bufptr - 2, "]]", 2)) + break; + else if (mxml_add_char(ch, &bufptr, &buffer, &bufsize)) + goto error; + } + + /* + * Error out if we didn't get the whole comment... + */ + + if (ch != '>') + { + /* + * Print error and return... + */ + + mxml_error("Early EOF in CDATA node!"); + goto error; + } + + + /* + * Otherwise add this as an element under the current parent... + */ + + *bufptr = '\0'; + + if (!parent && first) + { + /* + * There can only be one root element! + */ + + mxml_error("<%s> cannot be a second root node after <%s>", + buffer, first->value.element.name); + goto error; + } + + if ((node = mxmlNewElement(parent, buffer)) == NULL) + { + /* + * Print error and return... + */ + + mxml_error("Unable to add CDATA node to parent <%s>!", + parent ? parent->value.element.name : "null"); + goto error; + } + + if (sax_cb) + { + (*sax_cb)(node, MXML_SAX_CDATA, sax_data); + + if (!mxmlRelease(node)) + node = NULL; + } + + if (node && !first) + first = node; + } + else if (buffer[0] == '?') + { + /* + * Gather rest of processing instruction... + */ + + while ((ch = (*getc_cb)(p, &encoding)) != EOF) + { + if (ch == '>' && bufptr > buffer && bufptr[-1] == '?') + break; + else if (mxml_add_char(ch, &bufptr, &buffer, &bufsize)) + goto error; + } + + /* + * Error out if we didn't get the whole processing instruction... + */ + + if (ch != '>') + { + /* + * Print error and return... + */ + + mxml_error("Early EOF in processing instruction node!"); + goto error; + } + + /* + * Otherwise add this as an element under the current parent... + */ + + *bufptr = '\0'; + + if (!parent && first) + { + /* + * There can only be one root element! + */ + + mxml_error("<%s> cannot be a second root node after <%s>", + buffer, first->value.element.name); + goto error; + } + + if ((node = mxmlNewElement(parent, buffer)) == NULL) + { + /* + * Print error and return... + */ + + mxml_error("Unable to add processing instruction node to parent <%s>!", + parent ? parent->value.element.name : "null"); + goto error; + } + + if (sax_cb) + { + (*sax_cb)(node, MXML_SAX_DIRECTIVE, sax_data); + + if (!mxmlRelease(node)) + node = NULL; + } + + if (node) + { + if (!first) + first = node; + + if (!parent) + { + parent = node; + + if (cb) + type = (*cb)(parent); + } + } + } + else if (buffer[0] == '!') + { + /* + * Gather rest of declaration... + */ + + do + { + if (ch == '>') + break; + else + { + if (ch == '&') + if ((ch = mxml_get_entity(parent, p, &encoding, getc_cb)) == EOF) + goto error; + + if (mxml_add_char(ch, &bufptr, &buffer, &bufsize)) + goto error; + } + } + while ((ch = (*getc_cb)(p, &encoding)) != EOF); + + /* + * Error out if we didn't get the whole declaration... + */ + + if (ch != '>') + { + /* + * Print error and return... + */ + + mxml_error("Early EOF in declaration node!"); + goto error; + } + + /* + * Otherwise add this as an element under the current parent... + */ + + *bufptr = '\0'; + + if (!parent && first) + { + /* + * There can only be one root element! + */ + + mxml_error("<%s> cannot be a second root node after <%s>", + buffer, first->value.element.name); + goto error; + } + + if ((node = mxmlNewElement(parent, buffer)) == NULL) + { + /* + * Print error and return... + */ + + mxml_error("Unable to add declaration node to parent <%s>!", + parent ? parent->value.element.name : "null"); + goto error; + } + + if (sax_cb) + { + (*sax_cb)(node, MXML_SAX_DIRECTIVE, sax_data); + + if (!mxmlRelease(node)) + node = NULL; + } + + if (node) + { + if (!first) + first = node; + + if (!parent) + { + parent = node; + + if (cb) + type = (*cb)(parent); + } + } + } + else if (buffer[0] == '/') + { + /* + * Handle close tag... + */ + + if (!parent || strcmp(buffer + 1, parent->value.element.name)) + { + /* + * Close tag doesn't match tree; print an error for now... + */ + + mxml_error("Mismatched close tag <%s> under parent <%s>!", + buffer, parent ? parent->value.element.name : "(null)"); + goto error; + } + + /* + * Keep reading until we see >... + */ + + while (ch != '>' && ch != EOF) + ch = (*getc_cb)(p, &encoding); + + node = parent; + parent = parent->parent; + + if (sax_cb) + { + (*sax_cb)(node, MXML_SAX_ELEMENT_CLOSE, sax_data); + + if (!mxmlRelease(node) && first == node) + first = NULL; + } + + /* + * Ascend into the parent and set the value type as needed... + */ + + if (cb && parent) + type = (*cb)(parent); + } + else + { + /* + * Handle open tag... + */ + + if (!parent && first) + { + /* + * There can only be one root element! + */ + + mxml_error("<%s> cannot be a second root node after <%s>", + buffer, first->value.element.name); + goto error; + } + + if ((node = mxmlNewElement(parent, buffer)) == NULL) + { + /* + * Just print error for now... + */ + + mxml_error("Unable to add element node to parent <%s>!", + parent ? parent->value.element.name : "null"); + goto error; + } + + if (mxml_isspace(ch)) + { + if ((ch = mxml_parse_element(node, p, &encoding, getc_cb)) == EOF) + goto error; + } + else if (ch == '/') + { + if ((ch = (*getc_cb)(p, &encoding)) != '>') + { + mxml_error("Expected > but got '%c' instead for element <%s/>!", + ch, buffer); + mxmlDelete(node); + goto error; + } + + ch = '/'; + } + + if (sax_cb) + (*sax_cb)(node, MXML_SAX_ELEMENT_OPEN, sax_data); + + if (!first) + first = node; + + if (ch == EOF) + break; + + if (ch != '/') + { + /* + * Descend into this node, setting the value type as needed... + */ + + parent = node; + + if (cb && parent) + type = (*cb)(parent); + } + else if (sax_cb) + { + (*sax_cb)(node, MXML_SAX_ELEMENT_CLOSE, sax_data); + + if (!mxmlRelease(node) && first == node) + first = NULL; + } + } + + bufptr = buffer; + } + else if (ch == '&') + { + /* + * Add character entity to current buffer... + */ + + if ((ch = mxml_get_entity(parent, p, &encoding, getc_cb)) == EOF) + goto error; + + if (mxml_add_char(ch, &bufptr, &buffer, &bufsize)) + goto error; + } + else if (type == MXML_OPAQUE || type == MXML_CUSTOM || !mxml_isspace(ch)) + { + /* + * Add character to current buffer... + */ + + if (mxml_add_char(ch, &bufptr, &buffer, &bufsize)) + goto error; + } + } + + /* + * Free the string buffer - we don't need it anymore... + */ + + free(buffer); + + /* + * Find the top element and return it... + */ + + if (parent) + { + node = parent; + + while (parent->parent != top && parent->parent) + parent = parent->parent; + + if (node != parent) + { + mxml_error("Missing close tag under parent <%s>!", + node->value.element.name, + node->parent ? node->parent->value.element.name : "(null)"); + + mxmlDelete(first); + + return (NULL); + } + } + + if (parent) + return (parent); + else + return (first); + + /* + * Common error return... + */ + +error: + + mxmlDelete(first); + + free(buffer); + + return (NULL); +} + + +/* + * 'mxml_parse_element()' - Parse an element for any attributes... + */ + +static int /* O - Terminating character */ +mxml_parse_element( + mxml_node_t *node, /* I - Element node */ + void *p, /* I - Data to read from */ + int *encoding, /* IO - Encoding */ + _mxml_getc_cb_t getc_cb) /* I - Data callback */ +{ + int ch, /* Current character in file */ + quote; /* Quoting character */ + char *name, /* Attribute name */ + *value, /* Attribute value */ + *ptr; /* Pointer into name/value */ + int namesize, /* Size of name string */ + valsize; /* Size of value string */ + + + /* + * Initialize the name and value buffers... + */ + + if ((name = malloc(64)) == NULL) + { + mxml_error("Unable to allocate memory for name!"); + return (EOF); + } + + namesize = 64; + + if ((value = malloc(64)) == NULL) + { + free(name); + mxml_error("Unable to allocate memory for value!"); + return (EOF); + } + + valsize = 64; + + /* + * Loop until we hit a >, /, ?, or EOF... + */ + + while ((ch = (*getc_cb)(p, encoding)) != EOF) + { +#if DEBUG > 1 + fprintf(stderr, "parse_element: ch='%c'\n", ch); +#endif /* DEBUG > 1 */ + + /* + * Skip leading whitespace... + */ + + if (mxml_isspace(ch)) + continue; + + /* + * Stop at /, ?, or >... + */ + + if (ch == '/' || ch == '?') + { + /* + * Grab the > character and print an error if it isn't there... + */ + + quote = (*getc_cb)(p, encoding); + + if (quote != '>') + { + mxml_error("Expected '>' after '%c' for element %s, but got '%c'!", + ch, node->value.element.name, quote); + goto error; + } + + break; + } + else if (ch == '<') + { + mxml_error("Bare < in element %s!", node->value.element.name); + goto error; + } + else if (ch == '>') + break; + + /* + * Read the attribute name... + */ + + name[0] = ch; + ptr = name + 1; + + if (ch == '\"' || ch == '\'') + { + /* + * Name is in quotes, so get a quoted string... + */ + + quote = ch; + + while ((ch = (*getc_cb)(p, encoding)) != EOF) + { + if (ch == '&') + if ((ch = mxml_get_entity(node, p, encoding, getc_cb)) == EOF) + goto error; + + if (mxml_add_char(ch, &ptr, &name, &namesize)) + goto error; + + if (ch == quote) + break; + } + } + else + { + /* + * Grab an normal, non-quoted name... + */ + + while ((ch = (*getc_cb)(p, encoding)) != EOF) + if (mxml_isspace(ch) || ch == '=' || ch == '/' || ch == '>' || + ch == '?') + break; + else + { + if (ch == '&') + if ((ch = mxml_get_entity(node, p, encoding, getc_cb)) == EOF) + goto error; + + if (mxml_add_char(ch, &ptr, &name, &namesize)) + goto error; + } + } + + *ptr = '\0'; + + if (mxmlElementGetAttr(node, name)) + goto error; + + while (ch != EOF && mxml_isspace(ch)) + ch = (*getc_cb)(p, encoding); + + if (ch == '=') + { + /* + * Read the attribute value... + */ + + while ((ch = (*getc_cb)(p, encoding)) != EOF && mxml_isspace(ch)); + + if (ch == EOF) + { + mxml_error("Missing value for attribute '%s' in element %s!", + name, node->value.element.name); + goto error; + } + + if (ch == '\'' || ch == '\"') + { + /* + * Read quoted value... + */ + + quote = ch; + ptr = value; + + while ((ch = (*getc_cb)(p, encoding)) != EOF) + if (ch == quote) + break; + else + { + if (ch == '&') + if ((ch = mxml_get_entity(node, p, encoding, getc_cb)) == EOF) + goto error; + + if (mxml_add_char(ch, &ptr, &value, &valsize)) + goto error; + } + + *ptr = '\0'; + } + else + { + /* + * Read unquoted value... + */ + + value[0] = ch; + ptr = value + 1; + + while ((ch = (*getc_cb)(p, encoding)) != EOF) + if (mxml_isspace(ch) || ch == '=' || ch == '/' || ch == '>') + break; + else + { + if (ch == '&') + if ((ch = mxml_get_entity(node, p, encoding, getc_cb)) == EOF) + goto error; + + if (mxml_add_char(ch, &ptr, &value, &valsize)) + goto error; + } + + *ptr = '\0'; + } + + /* + * Set the attribute with the given string value... + */ + + mxmlElementSetAttr(node, name, value); + } + else + { + mxml_error("Missing value for attribute '%s' in element %s!", + name, node->value.element.name); + goto error; + } + + /* + * Check the end character... + */ + + if (ch == '/' || ch == '?') + { + /* + * Grab the > character and print an error if it isn't there... + */ + + quote = (*getc_cb)(p, encoding); + + if (quote != '>') + { + mxml_error("Expected '>' after '%c' for element %s, but got '%c'!", + ch, node->value.element.name, quote); + ch = EOF; + } + + break; + } + else if (ch == '>') + break; + } + + /* + * Free the name and value buffers and return... + */ + + free(name); + free(value); + + return (ch); + + /* + * Common error return point... + */ + +error: + + free(name); + free(value); + + return (EOF); +} + + +/* + * 'mxml_string_getc()' - Get a character from a string. + */ + +static int /* O - Character or EOF */ +mxml_string_getc(void *p, /* I - Pointer to file */ + int *encoding) /* IO - Encoding */ +{ + int ch; /* Character */ + const char **s; /* Pointer to string pointer */ + + + s = (const char **)p; + + if ((ch = (*s)[0] & 255) != 0 || *encoding == ENCODE_UTF16LE) + { + /* + * Got character; convert UTF-8 to integer and return... + */ + + (*s)++; + + switch (*encoding) + { + case ENCODE_UTF8 : + if (!(ch & 0x80)) + { +#if DEBUG > 1 + printf("mxml_string_getc: %c (0x%04x)\n", ch < ' ' ? '.' : ch, ch); +#endif /* DEBUG > 1 */ + + if (mxml_bad_char(ch)) + { + mxml_error("Bad control character 0x%02x not allowed by XML standard!", + ch); + return (EOF); + } + + return (ch); + } + else if (ch == 0xfe) + { + /* + * UTF-16 big-endian BOM? + */ + + if (((*s)[0] & 255) != 0xff) + return (EOF); + + *encoding = ENCODE_UTF16BE; + (*s)++; + + return (mxml_string_getc(p, encoding)); + } + else if (ch == 0xff) + { + /* + * UTF-16 little-endian BOM? + */ + + if (((*s)[0] & 255) != 0xfe) + return (EOF); + + *encoding = ENCODE_UTF16LE; + (*s)++; + + return (mxml_string_getc(p, encoding)); + } + else if ((ch & 0xe0) == 0xc0) + { + /* + * Two-byte value... + */ + + if (((*s)[0] & 0xc0) != 0x80) + return (EOF); + + ch = ((ch & 0x1f) << 6) | ((*s)[0] & 0x3f); + + (*s)++; + + if (ch < 0x80) + { + mxml_error("Invalid UTF-8 sequence for character 0x%04x!", ch); + return (EOF); + } + +#if DEBUG > 1 + printf("mxml_string_getc: %c (0x%04x)\n", ch < ' ' ? '.' : ch, ch); +#endif /* DEBUG > 1 */ + + return (ch); + } + else if ((ch & 0xf0) == 0xe0) + { + /* + * Three-byte value... + */ + + if (((*s)[0] & 0xc0) != 0x80 || + ((*s)[1] & 0xc0) != 0x80) + return (EOF); + + ch = ((((ch & 0x0f) << 6) | ((*s)[0] & 0x3f)) << 6) | ((*s)[1] & 0x3f); + + (*s) += 2; + + if (ch < 0x800) + { + mxml_error("Invalid UTF-8 sequence for character 0x%04x!", ch); + return (EOF); + } + + /* + * Ignore (strip) Byte Order Mark (BOM)... + */ + + if (ch == 0xfeff) + return (mxml_string_getc(p, encoding)); + +#if DEBUG > 1 + printf("mxml_string_getc: %c (0x%04x)\n", ch < ' ' ? '.' : ch, ch); +#endif /* DEBUG > 1 */ + + return (ch); + } + else if ((ch & 0xf8) == 0xf0) + { + /* + * Four-byte value... + */ + + if (((*s)[0] & 0xc0) != 0x80 || + ((*s)[1] & 0xc0) != 0x80 || + ((*s)[2] & 0xc0) != 0x80) + return (EOF); + + ch = ((((((ch & 0x07) << 6) | ((*s)[0] & 0x3f)) << 6) | + ((*s)[1] & 0x3f)) << 6) | ((*s)[2] & 0x3f); + + (*s) += 3; + + if (ch < 0x10000) + { + mxml_error("Invalid UTF-8 sequence for character 0x%04x!", ch); + return (EOF); + } + +#if DEBUG > 1 + printf("mxml_string_getc: %c (0x%04x)\n", ch < ' ' ? '.' : ch, ch); +#endif /* DEBUG > 1 */ + + return (ch); + } + else + return (EOF); + + case ENCODE_UTF16BE : + /* + * Read UTF-16 big-endian char... + */ + + ch = (ch << 8) | ((*s)[0] & 255); + (*s) ++; + + if (mxml_bad_char(ch)) + { + mxml_error("Bad control character 0x%02x not allowed by XML standard!", + ch); + return (EOF); + } + else if (ch >= 0xd800 && ch <= 0xdbff) + { + /* + * Multi-word UTF-16 char... + */ + + int lch; /* Lower word */ + + + if (!(*s)[0]) + return (EOF); + + lch = (((*s)[0] & 255) << 8) | ((*s)[1] & 255); + (*s) += 2; + + if (lch < 0xdc00 || lch >= 0xdfff) + return (EOF); + + ch = (((ch & 0x3ff) << 10) | (lch & 0x3ff)) + 0x10000; + } + +#if DEBUG > 1 + printf("mxml_string_getc: %c (0x%04x)\n", ch < ' ' ? '.' : ch, ch); +#endif /* DEBUG > 1 */ + + return (ch); + + case ENCODE_UTF16LE : + /* + * Read UTF-16 little-endian char... + */ + + ch = ch | (((*s)[0] & 255) << 8); + + if (!ch) + { + (*s) --; + return (EOF); + } + + (*s) ++; + + if (mxml_bad_char(ch)) + { + mxml_error("Bad control character 0x%02x not allowed by XML standard!", + ch); + return (EOF); + } + else if (ch >= 0xd800 && ch <= 0xdbff) + { + /* + * Multi-word UTF-16 char... + */ + + int lch; /* Lower word */ + + + if (!(*s)[1]) + return (EOF); + + lch = (((*s)[1] & 255) << 8) | ((*s)[0] & 255); + (*s) += 2; + + if (lch < 0xdc00 || lch >= 0xdfff) + return (EOF); + + ch = (((ch & 0x3ff) << 10) | (lch & 0x3ff)) + 0x10000; + } + +#if DEBUG > 1 + printf("mxml_string_getc: %c (0x%04x)\n", ch < ' ' ? '.' : ch, ch); +#endif /* DEBUG > 1 */ + + return (ch); + } + } + + return (EOF); +} + + +/* + * 'mxml_string_putc()' - Write a character to a string. + */ + +static int /* O - 0 on success, -1 on failure */ +mxml_string_putc(int ch, /* I - Character to write */ + void *p) /* I - Pointer to string pointers */ +{ + char **pp; /* Pointer to string pointers */ + + + pp = (char **)p; + + if (pp[0] < pp[1]) + pp[0][0] = ch; + + pp[0] ++; + + return (0); +} + + +/* + * 'mxml_write_name()' - Write a name string. + */ + +static int /* O - 0 on success, -1 on failure */ +mxml_write_name(const char *s, /* I - Name to write */ + void *p, /* I - Write pointer */ + int (*putc_cb)(int, void *)) + /* I - Write callback */ +{ + char quote; /* Quote character */ + const char *name; /* Entity name */ + + + if (*s == '\"' || *s == '\'') + { + /* + * Write a quoted name string... + */ + + if ((*putc_cb)(*s, p) < 0) + return (-1); + + quote = *s++; + + while (*s && *s != quote) + { + if ((name = mxmlEntityGetName(*s)) != NULL) + { + if ((*putc_cb)('&', p) < 0) + return (-1); + + while (*name) + { + if ((*putc_cb)(*name, p) < 0) + return (-1); + + name ++; + } + + if ((*putc_cb)(';', p) < 0) + return (-1); + } + else if ((*putc_cb)(*s, p) < 0) + return (-1); + + s ++; + } + + /* + * Write the end quote... + */ + + if ((*putc_cb)(quote, p) < 0) + return (-1); + } + else + { + /* + * Write a non-quoted name string... + */ + + while (*s) + { + if ((*putc_cb)(*s, p) < 0) + return (-1); + + s ++; + } + } + + return (0); +} + + +/* + * 'mxml_write_node()' - Save an XML node to a file. + */ + +static int /* O - Column or -1 on error */ +mxml_write_node(mxml_node_t *node, /* I - Node to write */ + void *p, /* I - File to write to */ + mxml_save_cb_t cb, /* I - Whitespace callback */ + int col, /* I - Current column */ + _mxml_putc_cb_t putc_cb,/* I - Output callback */ + _mxml_global_t *global)/* I - Global data */ +{ + int i, /* Looping var */ + width; /* Width of attr + value */ + mxml_attr_t *attr; /* Current attribute */ + char s[255]; /* Temporary string */ + + + /* + * Print the node value... + */ + + switch (node->type) + { + case MXML_ELEMENT : + col = mxml_write_ws(node, p, cb, MXML_WS_BEFORE_OPEN, col, putc_cb); + + if ((*putc_cb)('<', p) < 0) + return (-1); + if (node->value.element.name[0] == '?' || + !strncmp(node->value.element.name, "!--", 3) || + !strncmp(node->value.element.name, "![CDATA[", 8)) + { + /* + * Comments, CDATA, and processing instructions do not + * use character entities. + */ + + const char *ptr; /* Pointer into name */ + + + for (ptr = node->value.element.name; *ptr; ptr ++) + if ((*putc_cb)(*ptr, p) < 0) + return (-1); + } + else if (mxml_write_name(node->value.element.name, p, putc_cb) < 0) + return (-1); + + col += strlen(node->value.element.name) + 1; + + for (i = node->value.element.num_attrs, attr = node->value.element.attrs; + i > 0; + i --, attr ++) + { + width = strlen(attr->name); + + if (attr->value) + width += strlen(attr->value) + 3; + + if (global->wrap > 0 && (col + width) > global->wrap) + { + if ((*putc_cb)('\n', p) < 0) + return (-1); + + col = 0; + } + else + { + if ((*putc_cb)(' ', p) < 0) + return (-1); + + col ++; + } + + if (mxml_write_name(attr->name, p, putc_cb) < 0) + return (-1); + + if (attr->value) + { + if ((*putc_cb)('=', p) < 0) + return (-1); + if ((*putc_cb)('\"', p) < 0) + return (-1); + if (mxml_write_string(attr->value, p, putc_cb) < 0) + return (-1); + if ((*putc_cb)('\"', p) < 0) + return (-1); + } + + col += width; + } + + if (node->child) + { + /* + * Write children... + */ + + mxml_node_t *child; /* Current child */ + + + if ((*putc_cb)('>', p) < 0) + return (-1); + else + col ++; + + col = mxml_write_ws(node, p, cb, MXML_WS_AFTER_OPEN, col, putc_cb); + + for (child = node->child; child; child = child->next) + { + if ((col = mxml_write_node(child, p, cb, col, putc_cb, global)) < 0) + return (-1); + } + + /* + * The ? and ! elements are special-cases and have no end tags... + */ + + if (node->value.element.name[0] != '!' && + node->value.element.name[0] != '?') + { + col = mxml_write_ws(node, p, cb, MXML_WS_BEFORE_CLOSE, col, putc_cb); + + if ((*putc_cb)('<', p) < 0) + return (-1); + if ((*putc_cb)('/', p) < 0) + return (-1); + if (mxml_write_string(node->value.element.name, p, putc_cb) < 0) + return (-1); + if ((*putc_cb)('>', p) < 0) + return (-1); + + col += strlen(node->value.element.name) + 3; + + col = mxml_write_ws(node, p, cb, MXML_WS_AFTER_CLOSE, col, putc_cb); + } + } + else if (node->value.element.name[0] == '!' || + node->value.element.name[0] == '?') + { + /* + * The ? and ! elements are special-cases... + */ + + if ((*putc_cb)('>', p) < 0) + return (-1); + else + col ++; + + col = mxml_write_ws(node, p, cb, MXML_WS_AFTER_OPEN, col, putc_cb); + } + else + { + if ((*putc_cb)(' ', p) < 0) + return (-1); + if ((*putc_cb)('/', p) < 0) + return (-1); + if ((*putc_cb)('>', p) < 0) + return (-1); + + col += 3; + + col = mxml_write_ws(node, p, cb, MXML_WS_AFTER_OPEN, col, putc_cb); + } + break; + + case MXML_INTEGER : + if (node->prev) + { + if (global->wrap > 0 && col > global->wrap) + { + if ((*putc_cb)('\n', p) < 0) + return (-1); + + col = 0; + } + else if ((*putc_cb)(' ', p) < 0) + return (-1); + else + col ++; + } + + sprintf(s, "%d", node->value.integer); + if (mxml_write_string(s, p, putc_cb) < 0) + return (-1); + + col += strlen(s); + break; + + case MXML_OPAQUE : + if (mxml_write_string(node->value.opaque, p, putc_cb) < 0) + return (-1); + + col += strlen(node->value.opaque); + break; + + case MXML_REAL : + if (node->prev) + { + if (global->wrap > 0 && col > global->wrap) + { + if ((*putc_cb)('\n', p) < 0) + return (-1); + + col = 0; + } + else if ((*putc_cb)(' ', p) < 0) + return (-1); + else + col ++; + } + + sprintf(s, "%f", node->value.real); + if (mxml_write_string(s, p, putc_cb) < 0) + return (-1); + + col += strlen(s); + break; + + case MXML_TEXT : + if (node->value.text.whitespace && col > 0) + { + if (global->wrap > 0 && col > global->wrap) + { + if ((*putc_cb)('\n', p) < 0) + return (-1); + + col = 0; + } + else if ((*putc_cb)(' ', p) < 0) + return (-1); + else + col ++; + } + + if (mxml_write_string(node->value.text.string, p, putc_cb) < 0) + return (-1); + + col += strlen(node->value.text.string); + break; + + case MXML_CUSTOM : + if (global->custom_save_cb) + { + char *data; /* Custom data string */ + const char *newline; /* Last newline in string */ + + + if ((data = (*global->custom_save_cb)(node)) == NULL) + return (-1); + + if (mxml_write_string(data, p, putc_cb) < 0) + return (-1); + + if ((newline = strrchr(data, '\n')) == NULL) + col += strlen(data); + else + col = strlen(newline); + + free(data); + break; + } + + default : /* Should never happen */ + return (-1); + } + + return (col); +} + + +/* + * 'mxml_write_string()' - Write a string, escaping & and < as needed. + */ + +static int /* O - 0 on success, -1 on failure */ +mxml_write_string( + const char *s, /* I - String to write */ + void *p, /* I - Write pointer */ + _mxml_putc_cb_t putc_cb) /* I - Write callback */ +{ + const char *name; /* Entity name, if any */ + + + while (*s) + { + if ((name = mxmlEntityGetName(*s)) != NULL) + { + if ((*putc_cb)('&', p) < 0) + return (-1); + + while (*name) + { + if ((*putc_cb)(*name, p) < 0) + return (-1); + name ++; + } + + if ((*putc_cb)(';', p) < 0) + return (-1); + } + else if ((*putc_cb)(*s, p) < 0) + return (-1); + + s ++; + } + + return (0); +} + + +/* + * 'mxml_write_ws()' - Do whitespace callback... + */ + +static int /* O - New column */ +mxml_write_ws(mxml_node_t *node, /* I - Current node */ + void *p, /* I - Write pointer */ + mxml_save_cb_t cb, /* I - Callback function */ + int ws, /* I - Where value */ + int col, /* I - Current column */ + _mxml_putc_cb_t putc_cb) /* I - Write callback */ +{ + const char *s; /* Whitespace string */ + + + if (cb && (s = (*cb)(node, ws)) != NULL) + { + while (*s) + { + if ((*putc_cb)(*s, p) < 0) + return (-1); + else if (*s == '\n') + col = 0; + else if (*s == '\t') + { + col += MXML_TAB; + col = col - (col % MXML_TAB); + } + else + col ++; + + s ++; + } + } + + return (col); +} + + +/* + * End of "$Id: mxml-file.c 438 2011-03-24 05:47:51Z mike $". + */ diff --git a/xml/mxml-get.c b/xml/mxml-get.c new file mode 100644 index 0000000..a5356d5 --- /dev/null +++ b/xml/mxml-get.c @@ -0,0 +1,471 @@ +/* + * "$Id: mxml-get.c 427 2011-01-03 02:03:29Z mike $" + * + * Node get functions for Mini-XML, a small XML-like file parsing library. + * + * Copyright 2011 by Michael R Sweet. + * + * These coded instructions, statements, and computer programs are the + * property of Michael R Sweet and are protected by Federal copyright + * law. Distribution and use rights are outlined in the file "COPYING" + * which should have been included with this file. If this file is + * missing or damaged, see the license at: + * + * http://www.minixml.org/ + * + * Contents: + * + * mxmlGetCDATA() - Get the value for a CDATA node. + * mxmlGetCustom() - Get the value for a custom node. + * mxmlGetElement() - Get the name for an element node. + * mxmlGetFirstChild() - Get the first child of an element node. + * mxmlGetInteger() - Get the integer value from the specified node or its + * first child. + * mxmlGetLastChild() - Get the last child of an element node. + * mxmlGetNextSibling() - Get the next node for the current parent. + * mxmlGetOpaque() - Get an opaque string value for a node or its first + * child. + * mxmlGetParent() - Get the parent node. + * mxmlGetPrevSibling() - Get the previous node for the current parent. + * mxmlGetReal() - Get the real value for a node or its first child. + * mxmlGetText() - Get the text value for a node or its first child. + * mxmlGetType() - Get the node type. + * mxmlGetUserData() - Get the user data pointer for a node. + */ + +/* + * Include necessary headers... + */ + +#include "config.h" +#include "mxml.h" + + +/* + * 'mxmlGetCDATA()' - Get the value for a CDATA node. + * + * @code NULL@ is returned if the node is not a CDATA element. + * + * @since Mini-XML 2.7@ + */ + +const char * /* O - CDATA value or NULL */ +mxmlGetCDATA(mxml_node_t *node) /* I - Node to get */ +{ + /* + * Range check input... + */ + + if (!node || node->type != MXML_ELEMENT || + strncmp(node->value.element.name, "![CDATA[", 8)) + return (NULL); + + /* + * Return the text following the CDATA declaration... + */ + + return (node->value.element.name + 8); +} + + +/* + * 'mxmlGetCustom()' - Get the value for a custom node. + * + * @code NULL@ is returned if the node (or its first child) is not a custom + * value node. + * + * @since Mini-XML 2.7@ + */ + +const void * /* O - Custom value or NULL */ +mxmlGetCustom(mxml_node_t *node) /* I - Node to get */ +{ + /* + * Range check input... + */ + + if (!node) + return (NULL); + + /* + * Return the integer value... + */ + + if (node->type == MXML_CUSTOM) + return (node->value.custom.data); + else if (node->type == MXML_ELEMENT && + node->child && + node->child->type == MXML_CUSTOM) + return (node->child->value.custom.data); + else + return (NULL); +} + + +/* + * 'mxmlGetElement()' - Get the name for an element node. + * + * @code NULL@ is returned if the node is not an element node. + * + * @since Mini-XML 2.7@ + */ + +const char * /* O - Element name or NULL */ +mxmlGetElement(mxml_node_t *node) /* I - Node to get */ +{ + /* + * Range check input... + */ + + if (!node || node->type != MXML_ELEMENT) + return (NULL); + + /* + * Return the element name... + */ + + return (node->value.element.name); +} + + +/* + * 'mxmlGetFirstChild()' - Get the first child of an element node. + * + * @code NULL@ is returned if the node is not an element node or if the node + * has no children. + * + * @since Mini-XML 2.7@ + */ + +mxml_node_t * /* O - First child or NULL */ +mxmlGetFirstChild(mxml_node_t *node) /* I - Node to get */ +{ + /* + * Range check input... + */ + + if (!node || node->type != MXML_ELEMENT) + return (NULL); + + /* + * Return the first child node... + */ + + return (node->child); +} + + +/* + * 'mxmlGetInteger()' - Get the integer value from the specified node or its + * first child. + * + * 0 is returned if the node (or its first child) is not an integer value node. + * + * @since Mini-XML 2.7@ + */ + +int /* O - Integer value or 0 */ +mxmlGetInteger(mxml_node_t *node) /* I - Node to get */ +{ + /* + * Range check input... + */ + + if (!node) + return (0); + + /* + * Return the integer value... + */ + + if (node->type == MXML_INTEGER) + return (node->value.integer); + else if (node->type == MXML_ELEMENT && + node->child && + node->child->type == MXML_INTEGER) + return (node->child->value.integer); + else + return (0); +} + + +/* + * 'mxmlGetLastChild()' - Get the last child of an element node. + * + * @code NULL@ is returned if the node is not an element node or if the node + * has no children. + * + * @since Mini-XML 2.7@ + */ + +mxml_node_t * /* O - Last child or NULL */ +mxmlGetLastChild(mxml_node_t *node) /* I - Node to get */ +{ + /* + * Range check input... + */ + + if (!node || node->type != MXML_ELEMENT) + return (NULL); + + /* + * Return the node type... + */ + + return (node->last_child); +} + + +/* + * 'mxmlGetNextSibling()' - Get the next node for the current parent. + * + * @code NULL@ is returned if this is the last child for the current parent. + * + * @since Mini-XML 2.7@ + */ + +mxml_node_t * +mxmlGetNextSibling(mxml_node_t *node) /* I - Node to get */ +{ + /* + * Range check input... + */ + + if (!node) + return (NULL); + + /* + * Return the node type... + */ + + return (node->next); +} + + +/* + * 'mxmlGetOpaque()' - Get an opaque string value for a node or its first child. + * + * @code NULL@ is returned if the node (or its first child) is not an opaque + * value node. + * + * @since Mini-XML 2.7@ + */ + +const char * /* O - Opaque string or NULL */ +mxmlGetOpaque(mxml_node_t *node) /* I - Node to get */ +{ + /* + * Range check input... + */ + + if (!node) + return (NULL); + + /* + * Return the integer value... + */ + + if (node->type == MXML_OPAQUE) + return (node->value.opaque); + else if (node->type == MXML_ELEMENT && + node->child && + node->child->type == MXML_OPAQUE) + return (node->child->value.opaque); + else + return (NULL); +} + + +/* + * 'mxmlGetParent()' - Get the parent node. + * + * @code NULL@ is returned for a root node. + * + * @since Mini-XML 2.7@ + */ + +mxml_node_t * /* O - Parent node or NULL */ +mxmlGetParent(mxml_node_t *node) /* I - Node to get */ +{ + /* + * Range check input... + */ + + if (!node) + return (NULL); + + /* + * Return the node type... + */ + + return (node->parent); +} + + +/* + * 'mxmlGetPrevSibling()' - Get the previous node for the current parent. + * + * @code NULL@ is returned if this is the first child for the current parent. + * + * @since Mini-XML 2.7@ + */ + +mxml_node_t * /* O - Previous node or NULL */ +mxmlGetPrevSibling(mxml_node_t *node) /* I - Node to get */ +{ + /* + * Range check input... + */ + + if (!node) + return (NULL); + + /* + * Return the node type... + */ + + return (node->prev); +} + + +/* + * 'mxmlGetReal()' - Get the real value for a node or its first child. + * + * 0.0 is returned if the node (or its first child) is not a real value node. + * + * @since Mini-XML 2.7@ + */ + +double /* O - Real value or 0.0 */ +mxmlGetReal(mxml_node_t *node) /* I - Node to get */ +{ + /* + * Range check input... + */ + + if (!node) + return (0.0); + + /* + * Return the integer value... + */ + + if (node->type == MXML_REAL) + return (node->value.real); + else if (node->type == MXML_ELEMENT && + node->child && + node->child->type == MXML_REAL) + return (node->child->value.real); + else + return (0.0); +} + + +/* + * 'mxmlGetText()' - Get the text value for a node or its first child. + * + * @code NULL@ is returned if the node (or its first child) is not a text node. + * The "whitespace" argument can be NULL. + * + * @since Mini-XML 2.7@ + */ + +const char * /* O - Text string or NULL */ +mxmlGetText(mxml_node_t *node, /* I - Node to get */ + int *whitespace) /* O - 1 if string is preceded by whitespace, 0 otherwise */ +{ + /* + * Range check input... + */ + + if (!node) + { + if (whitespace) + *whitespace = 0; + + return (NULL); + } + + /* + * Return the integer value... + */ + + if (node->type == MXML_TEXT) + { + if (whitespace) + *whitespace = node->value.text.whitespace; + + return (node->value.text.string); + } + else if (node->type == MXML_ELEMENT && + node->child && + node->child->type == MXML_TEXT) + { + if (whitespace) + *whitespace = node->child->value.text.whitespace; + + return (node->child->value.text.string); + } + else + { + if (whitespace) + *whitespace = 0; + + return (NULL); + } +} + + +/* + * 'mxmlGetType()' - Get the node type. + * + * @code MXML_IGNORE@ is returned if "node" is @code NULL@. + * + * @since Mini-XML 2.7@ + */ + +mxml_type_t /* O - Type of node */ +mxmlGetType(mxml_node_t *node) /* I - Node to get */ +{ + /* + * Range check input... + */ + + if (!node) + return (MXML_IGNORE); + + /* + * Return the node type... + */ + + return (node->type); +} + + +/* + * 'mxmlGetUserData()' - Get the user data pointer for a node. + * + * @since Mini-XML 2.7@ + */ + +void * /* O - User data pointer */ +mxmlGetUserData(mxml_node_t *node) /* I - Node to get */ +{ + /* + * Range check input... + */ + + if (!node) + return (NULL); + + /* + * Return the user data pointer... + */ + + return (node->user_data); +} + + +/* + * End of "$Id: mxml-get.c 427 2011-01-03 02:03:29Z mike $". + */ diff --git a/xml/mxml-index.c b/xml/mxml-index.c new file mode 100644 index 0000000..b6efc66 --- /dev/null +++ b/xml/mxml-index.c @@ -0,0 +1,662 @@ +/* + * "$Id: mxml-index.c 426 2011-01-01 23:42:17Z mike $" + * + * Index support code for Mini-XML, a small XML-like file parsing library. + * + * Copyright 2003-2011 by Michael R Sweet. + * + * These coded instructions, statements, and computer programs are the + * property of Michael R Sweet and are protected by Federal copyright + * law. Distribution and use rights are outlined in the file "COPYING" + * which should have been included with this file. If this file is + * missing or damaged, see the license at: + * + * http://www.minixml.org/ + * + * Contents: + * + */ + +/* + * Include necessary headers... + */ + +#include "config.h" +#include "mxml.h" + + +/* + * Sort functions... + */ + +static int index_compare(mxml_index_t *ind, mxml_node_t *first, + mxml_node_t *second); +static int index_find(mxml_index_t *ind, const char *element, + const char *value, mxml_node_t *node); +static void index_sort(mxml_index_t *ind, int left, int right); + + +/* + * 'mxmlIndexDelete()' - Delete an index. + */ + +void +mxmlIndexDelete(mxml_index_t *ind) /* I - Index to delete */ +{ + /* + * Range check input.. + */ + + if (!ind) + return; + + /* + * Free memory... + */ + + if (ind->attr) + free(ind->attr); + + if (ind->alloc_nodes) + free(ind->nodes); + + free(ind); +} + + +/* + * 'mxmlIndexEnum()' - Return the next node in the index. + * + * Nodes are returned in the sorted order of the index. + */ + +mxml_node_t * /* O - Next node or NULL if there is none */ +mxmlIndexEnum(mxml_index_t *ind) /* I - Index to enumerate */ +{ + /* + * Range check input... + */ + + if (!ind) + return (NULL); + + /* + * Return the next node... + */ + + if (ind->cur_node < ind->num_nodes) + return (ind->nodes[ind->cur_node ++]); + else + return (NULL); +} + + +/* + * 'mxmlIndexFind()' - Find the next matching node. + * + * You should call mxmlIndexReset() prior to using this function for + * the first time with a particular set of "element" and "value" + * strings. Passing NULL for both "element" and "value" is equivalent + * to calling mxmlIndexEnum(). + */ + +mxml_node_t * /* O - Node or NULL if none found */ +mxmlIndexFind(mxml_index_t *ind, /* I - Index to search */ + const char *element, /* I - Element name to find, if any */ + const char *value) /* I - Attribute value, if any */ +{ + int diff, /* Difference between names */ + current, /* Current entity in search */ + first, /* First entity in search */ + last; /* Last entity in search */ + + +#ifdef DEBUG + printf("mxmlIndexFind(ind=%p, element=\"%s\", value=\"%s\")\n", + ind, element ? element : "(null)", value ? value : "(null)"); +#endif /* DEBUG */ + + /* + * Range check input... + */ + + if (!ind || (!ind->attr && value)) + { +#ifdef DEBUG + puts(" returning NULL..."); + printf(" ind->attr=\"%s\"\n", ind->attr ? ind->attr : "(null)"); +#endif /* DEBUG */ + + return (NULL); + } + + /* + * If both element and value are NULL, just enumerate the nodes in the + * index... + */ + + if (!element && !value) + return (mxmlIndexEnum(ind)); + + /* + * If there are no nodes in the index, return NULL... + */ + + if (!ind->num_nodes) + { +#ifdef DEBUG + puts(" returning NULL..."); + puts(" no nodes!"); +#endif /* DEBUG */ + + return (NULL); + } + + /* + * If cur_node == 0, then find the first matching node... + */ + + if (ind->cur_node == 0) + { + /* + * Find the first node using a modified binary search algorithm... + */ + + first = 0; + last = ind->num_nodes - 1; + +#ifdef DEBUG + printf(" find first time, num_nodes=%d...\n", ind->num_nodes); +#endif /* DEBUG */ + + while ((last - first) > 1) + { + current = (first + last) / 2; + +#ifdef DEBUG + printf(" first=%d, last=%d, current=%d\n", first, last, current); +#endif /* DEBUG */ + + if ((diff = index_find(ind, element, value, ind->nodes[current])) == 0) + { + /* + * Found a match, move back to find the first... + */ + +#ifdef DEBUG + puts(" match!"); +#endif /* DEBUG */ + + while (current > 0 && + !index_find(ind, element, value, ind->nodes[current - 1])) + current --; + +#ifdef DEBUG + printf(" returning first match=%d\n", current); +#endif /* DEBUG */ + + /* + * Return the first match and save the index to the next... + */ + + ind->cur_node = current + 1; + + return (ind->nodes[current]); + } + else if (diff < 0) + last = current; + else + first = current; + +#ifdef DEBUG + printf(" diff=%d\n", diff); +#endif /* DEBUG */ + } + + /* + * If we get this far, then we found exactly 0 or 1 matches... + */ + + for (current = first; current <= last; current ++) + if (!index_find(ind, element, value, ind->nodes[current])) + { + /* + * Found exactly one (or possibly two) match... + */ + +#ifdef DEBUG + printf(" returning only match %d...\n", current); +#endif /* DEBUG */ + + ind->cur_node = current + 1; + + return (ind->nodes[current]); + } + + /* + * No matches... + */ + + ind->cur_node = ind->num_nodes; + +#ifdef DEBUG + puts(" returning NULL..."); +#endif /* DEBUG */ + + return (NULL); + } + else if (ind->cur_node < ind->num_nodes && + !index_find(ind, element, value, ind->nodes[ind->cur_node])) + { + /* + * Return the next matching node... + */ + +#ifdef DEBUG + printf(" returning next match %d...\n", ind->cur_node); +#endif /* DEBUG */ + + return (ind->nodes[ind->cur_node ++]); + } + + /* + * If we get this far, then we have no matches... + */ + + ind->cur_node = ind->num_nodes; + +#ifdef DEBUG + puts(" returning NULL..."); +#endif /* DEBUG */ + + return (NULL); +} + + +/* + * 'mxmlIndexGetCount()' - Get the number of nodes in an index. + * + * @since Mini-XML 2.7@ + */ + +int /* I - Number of nodes in index */ +mxmlIndexGetCount(mxml_index_t *ind) /* I - Index of nodes */ +{ + /* + * Range check input... + */ + + if (!ind) + return (0); + + /* + * Return the number of nodes in the index... + */ + + return (ind->num_nodes); +} + + +/* + * 'mxmlIndexNew()' - Create a new index. + * + * The index will contain all nodes that contain the named element and/or + * attribute. If both "element" and "attr" are NULL, then the index will + * contain a sorted list of the elements in the node tree. Nodes are + * sorted by element name and optionally by attribute value if the "attr" + * argument is not NULL. + */ + +mxml_index_t * /* O - New index */ +mxmlIndexNew(mxml_node_t *node, /* I - XML node tree */ + const char *element, /* I - Element to index or NULL for all */ + const char *attr) /* I - Attribute to index or NULL for none */ +{ + mxml_index_t *ind; /* New index */ + mxml_node_t *current, /* Current node in index */ + **temp; /* Temporary node pointer array */ + + + /* + * Range check input... + */ + +#ifdef DEBUG + printf("mxmlIndexNew(node=%p, element=\"%s\", attr=\"%s\")\n", + node, element ? element : "(null)", attr ? attr : "(null)"); +#endif /* DEBUG */ + + if (!node) + return (NULL); + + /* + * Create a new index... + */ + + if ((ind = calloc(1, sizeof(mxml_index_t))) == NULL) + { + mxml_error("Unable to allocate %d bytes for index - %s", + sizeof(mxml_index_t), strerror(errno)); + return (NULL); + } + + if (attr) + ind->attr = strdup(attr); + + if (!element && !attr) + current = node; + else + current = mxmlFindElement(node, node, element, attr, NULL, MXML_DESCEND); + + while (current) + { + if (ind->num_nodes >= ind->alloc_nodes) + { + if (!ind->alloc_nodes) + temp = malloc(64 * sizeof(mxml_node_t *)); + else + temp = realloc(ind->nodes, (ind->alloc_nodes + 64) * sizeof(mxml_node_t *)); + + if (!temp) + { + /* + * Unable to allocate memory for the index, so abort... + */ + + mxml_error("Unable to allocate %d bytes for index: %s", + (ind->alloc_nodes + 64) * sizeof(mxml_node_t *), + strerror(errno)); + + mxmlIndexDelete(ind); + return (NULL); + } + + ind->nodes = temp; + ind->alloc_nodes += 64; + } + + ind->nodes[ind->num_nodes ++] = current; + + current = mxmlFindElement(current, node, element, attr, NULL, MXML_DESCEND); + } + + /* + * Sort nodes based upon the search criteria... + */ + +#ifdef DEBUG + { + int i; /* Looping var */ + + + printf("%d node(s) in index.\n\n", ind->num_nodes); + + if (attr) + { + printf("Node Address Element %s\n", attr); + puts("-------- -------- -------------- ------------------------------"); + + for (i = 0; i < ind->num_nodes; i ++) + printf("%8d %-8p %-14.14s %s\n", i, ind->nodes[i], + ind->nodes[i]->value.element.name, + mxmlElementGetAttr(ind->nodes[i], attr)); + } + else + { + puts("Node Address Element"); + puts("-------- -------- --------------"); + + for (i = 0; i < ind->num_nodes; i ++) + printf("%8d %-8p %s\n", i, ind->nodes[i], + ind->nodes[i]->value.element.name); + } + + putchar('\n'); + } +#endif /* DEBUG */ + + if (ind->num_nodes > 1) + index_sort(ind, 0, ind->num_nodes - 1); + +#ifdef DEBUG + { + int i; /* Looping var */ + + + puts("After sorting:\n"); + + if (attr) + { + printf("Node Address Element %s\n", attr); + puts("-------- -------- -------------- ------------------------------"); + + for (i = 0; i < ind->num_nodes; i ++) + printf("%8d %-8p %-14.14s %s\n", i, ind->nodes[i], + ind->nodes[i]->value.element.name, + mxmlElementGetAttr(ind->nodes[i], attr)); + } + else + { + puts("Node Address Element"); + puts("-------- -------- --------------"); + + for (i = 0; i < ind->num_nodes; i ++) + printf("%8d %-8p %s\n", i, ind->nodes[i], + ind->nodes[i]->value.element.name); + } + + putchar('\n'); + } +#endif /* DEBUG */ + + /* + * Return the new index... + */ + + return (ind); +} + + +/* + * 'mxmlIndexReset()' - Reset the enumeration/find pointer in the index and + * return the first node in the index. + * + * This function should be called prior to using mxmlIndexEnum() or + * mxmlIndexFind() for the first time. + */ + +mxml_node_t * /* O - First node or NULL if there is none */ +mxmlIndexReset(mxml_index_t *ind) /* I - Index to reset */ +{ +#ifdef DEBUG + printf("mxmlIndexReset(ind=%p)\n", ind); +#endif /* DEBUG */ + + /* + * Range check input... + */ + + if (!ind) + return (NULL); + + /* + * Set the index to the first element... + */ + + ind->cur_node = 0; + + /* + * Return the first node... + */ + + if (ind->num_nodes) + return (ind->nodes[0]); + else + return (NULL); +} + + +/* + * 'index_compare()' - Compare two nodes. + */ + +static int /* O - Result of comparison */ +index_compare(mxml_index_t *ind, /* I - Index */ + mxml_node_t *first, /* I - First node */ + mxml_node_t *second) /* I - Second node */ +{ + int diff; /* Difference */ + + + /* + * Check the element name... + */ + + if ((diff = strcmp(first->value.element.name, + second->value.element.name)) != 0) + return (diff); + + /* + * Check the attribute value... + */ + + if (ind->attr) + { + if ((diff = strcmp(mxmlElementGetAttr(first, ind->attr), + mxmlElementGetAttr(second, ind->attr))) != 0) + return (diff); + } + + /* + * No difference, return 0... + */ + + return (0); +} + + +/* + * 'index_find()' - Compare a node with index values. + */ + +static int /* O - Result of comparison */ +index_find(mxml_index_t *ind, /* I - Index */ + const char *element, /* I - Element name or NULL */ + const char *value, /* I - Attribute value or NULL */ + mxml_node_t *node) /* I - Node */ +{ + int diff; /* Difference */ + + + /* + * Check the element name... + */ + + if (element) + { + if ((diff = strcmp(element, node->value.element.name)) != 0) + return (diff); + } + + /* + * Check the attribute value... + */ + + if (value) + { + if ((diff = strcmp(value, mxmlElementGetAttr(node, ind->attr))) != 0) + return (diff); + } + + /* + * No difference, return 0... + */ + + return (0); +} + + +/* + * 'index_sort()' - Sort the nodes in the index... + * + * This function implements the classic quicksort algorithm... + */ + +static void +index_sort(mxml_index_t *ind, /* I - Index to sort */ + int left, /* I - Left node in partition */ + int right) /* I - Right node in partition */ +{ + mxml_node_t *pivot, /* Pivot node */ + *temp; /* Swap node */ + int templ, /* Temporary left node */ + tempr; /* Temporary right node */ + + + /* + * Loop until we have sorted all the way to the right... + */ + + do + { + /* + * Sort the pivot in the current partition... + */ + + pivot = ind->nodes[left]; + + for (templ = left, tempr = right; templ < tempr;) + { + /* + * Move left while left node <= pivot node... + */ + + while ((templ < right) && + index_compare(ind, ind->nodes[templ], pivot) <= 0) + templ ++; + + /* + * Move right while right node > pivot node... + */ + + while ((tempr > left) && + index_compare(ind, ind->nodes[tempr], pivot) > 0) + tempr --; + + /* + * Swap nodes if needed... + */ + + if (templ < tempr) + { + temp = ind->nodes[templ]; + ind->nodes[templ] = ind->nodes[tempr]; + ind->nodes[tempr] = temp; + } + } + + /* + * When we get here, the right (tempr) node is the new position for the + * pivot node... + */ + + if (index_compare(ind, pivot, ind->nodes[tempr]) > 0) + { + ind->nodes[left] = ind->nodes[tempr]; + ind->nodes[tempr] = pivot; + } + + /* + * Recursively sort the left partition as needed... + */ + + if (left < (tempr - 1)) + index_sort(ind, left, tempr - 1); + } + while (right > (left = tempr + 1)); +} + + +/* + * End of "$Id: mxml-index.c 426 2011-01-01 23:42:17Z mike $". + */ diff --git a/xml/mxml-node.c b/xml/mxml-node.c new file mode 100644 index 0000000..44af759 --- /dev/null +++ b/xml/mxml-node.c @@ -0,0 +1,807 @@ +/* + * "$Id: mxml-node.c 436 2011-01-22 01:02:05Z mike $" + * + * Node support code for Mini-XML, a small XML-like file parsing library. + * + * Copyright 2003-2011 by Michael R Sweet. + * + * These coded instructions, statements, and computer programs are the + * property of Michael R Sweet and are protected by Federal copyright + * law. Distribution and use rights are outlined in the file "COPYING" + * which should have been included with this file. If this file is + * missing or damaged, see the license at: + * + * http://www.minixml.org/ + * + * Contents: + * + * mxmlAdd() - Add a node to a tree. + * mxmlDelete() - Delete a node and all of its children. + * mxmlGetRefCount() - Get the current reference (use) count for a node. + * mxmlNewCDATA() - Create a new CDATA node. + * mxmlNewCustom() - Create a new custom data node. + * mxmlNewElement() - Create a new element node. + * mxmlNewInteger() - Create a new integer node. + * mxmlNewOpaque() - Create a new opaque string. + * mxmlNewReal() - Create a new real number node. + * mxmlNewText() - Create a new text fragment node. + * mxmlNewTextf() - Create a new formatted text fragment node. + * mxmlRemove() - Remove a node from its parent. + * mxmlNewXML() - Create a new XML document tree. + * mxmlRelease() - Release a node. + * mxmlRetain() - Retain a node. + * mxml_new() - Create a new node. + */ + +/* + * Include necessary headers... + */ + +#include "config.h" +#include "mxml.h" + + +/* + * Local functions... + */ + +static mxml_node_t *mxml_new(mxml_node_t *parent, mxml_type_t type); + + +/* + * 'mxmlAdd()' - Add a node to a tree. + * + * Adds the specified node to the parent. If the child argument is not + * NULL, puts the new node before or after the specified child depending + * on the value of the where argument. If the child argument is NULL, + * puts the new node at the beginning of the child list (MXML_ADD_BEFORE) + * or at the end of the child list (MXML_ADD_AFTER). The constant + * MXML_ADD_TO_PARENT can be used to specify a NULL child pointer. + */ + +void +mxmlAdd(mxml_node_t *parent, /* I - Parent node */ + int where, /* I - Where to add, MXML_ADD_BEFORE or MXML_ADD_AFTER */ + mxml_node_t *child, /* I - Child node for where or MXML_ADD_TO_PARENT */ + mxml_node_t *node) /* I - Node to add */ +{ +#ifdef DEBUG + fprintf(stderr, "mxmlAdd(parent=%p, where=%d, child=%p, node=%p)\n", parent, + where, child, node); +#endif /* DEBUG */ + + /* + * Range check input... + */ + + if (!parent || !node) + return; + +#if DEBUG > 1 + fprintf(stderr, " BEFORE: node->parent=%p\n", node->parent); + if (parent) + { + fprintf(stderr, " BEFORE: parent->child=%p\n", parent->child); + fprintf(stderr, " BEFORE: parent->last_child=%p\n", parent->last_child); + fprintf(stderr, " BEFORE: parent->prev=%p\n", parent->prev); + fprintf(stderr, " BEFORE: parent->next=%p\n", parent->next); + } +#endif /* DEBUG > 1 */ + + /* + * Remove the node from any existing parent... + */ + + if (node->parent) + mxmlRemove(node); + + /* + * Reset pointers... + */ + + node->parent = parent; + + switch (where) + { + case MXML_ADD_BEFORE : + if (!child || child == parent->child || child->parent != parent) + { + /* + * Insert as first node under parent... + */ + + node->next = parent->child; + + if (parent->child) + parent->child->prev = node; + else + parent->last_child = node; + + parent->child = node; + } + else + { + /* + * Insert node before this child... + */ + + node->next = child; + node->prev = child->prev; + + if (child->prev) + child->prev->next = node; + else + parent->child = node; + + child->prev = node; + } + break; + + case MXML_ADD_AFTER : + if (!child || child == parent->last_child || child->parent != parent) + { + /* + * Insert as last node under parent... + */ + + node->parent = parent; + node->prev = parent->last_child; + + if (parent->last_child) + parent->last_child->next = node; + else + parent->child = node; + + parent->last_child = node; + } + else + { + /* + * Insert node after this child... + */ + + node->prev = child; + node->next = child->next; + + if (child->next) + child->next->prev = node; + else + parent->last_child = node; + + child->next = node; + } + break; + } + +#if DEBUG > 1 + fprintf(stderr, " AFTER: node->parent=%p\n", node->parent); + if (parent) + { + fprintf(stderr, " AFTER: parent->child=%p\n", parent->child); + fprintf(stderr, " AFTER: parent->last_child=%p\n", parent->last_child); + fprintf(stderr, " AFTER: parent->prev=%p\n", parent->prev); + fprintf(stderr, " AFTER: parent->next=%p\n", parent->next); + } +#endif /* DEBUG > 1 */ +} + + +/* + * 'mxmlDelete()' - Delete a node and all of its children. + * + * If the specified node has a parent, this function first removes the + * node from its parent using the mxmlRemove() function. + */ + +void +mxmlDelete(mxml_node_t *node) /* I - Node to delete */ +{ + int i; /* Looping var */ + + +#ifdef DEBUG + fprintf(stderr, "mxmlDelete(node=%p)\n", node); +#endif /* DEBUG */ + + /* + * Range check input... + */ + + if (!node) + return; + + /* + * Remove the node from its parent, if any... + */ + + mxmlRemove(node); + + /* + * Delete children... + */ + + while (node->child) + mxmlDelete(node->child); + + /* + * Now delete any node data... + */ + + switch (node->type) + { + case MXML_ELEMENT : + if (node->value.element.name) + free(node->value.element.name); + + if (node->value.element.num_attrs) + { + for (i = 0; i < node->value.element.num_attrs; i ++) + { + if (node->value.element.attrs[i].name) + free(node->value.element.attrs[i].name); + if (node->value.element.attrs[i].value) + free(node->value.element.attrs[i].value); + } + + free(node->value.element.attrs); + } + break; + case MXML_INTEGER : + /* Nothing to do */ + break; + case MXML_OPAQUE : + if (node->value.opaque) + free(node->value.opaque); + break; + case MXML_REAL : + /* Nothing to do */ + break; + case MXML_TEXT : + if (node->value.text.string) + free(node->value.text.string); + break; + case MXML_CUSTOM : + if (node->value.custom.data && + node->value.custom.destroy) + (*(node->value.custom.destroy))(node->value.custom.data); + break; + default : + break; + } + + /* + * Free this node... + */ + + free(node); +} + + +/* + * 'mxmlGetRefCount()' - Get the current reference (use) count for a node. + * + * The initial reference count of new nodes is 1. Use the @link mxmlRetain@ + * and @link mxmlRelease@ functions to increment and decrement a node's + * reference count. + * + * @since Mini-XML 2.7@. + */ + +int /* O - Reference count */ +mxmlGetRefCount(mxml_node_t *node) /* I - Node */ +{ + /* + * Range check input... + */ + + if (!node) + return (0); + + /* + * Return the reference count... + */ + + return (node->ref_count); +} + + +/* + * 'mxmlNewCDATA()' - Create a new CDATA node. + * + * The new CDATA node is added to the end of the specified parent's child + * list. The constant MXML_NO_PARENT can be used to specify that the new + * CDATA node has no parent. The data string must be nul-terminated and + * is copied into the new node. CDATA nodes use the MXML_ELEMENT type. + * + * @since Mini-XML 2.3@ + */ + +mxml_node_t * /* O - New node */ +mxmlNewCDATA(mxml_node_t *parent, /* I - Parent node or MXML_NO_PARENT */ + const char *data) /* I - Data string */ +{ + mxml_node_t *node; /* New node */ + + +#ifdef DEBUG + fprintf(stderr, "mxmlNewCDATA(parent=%p, data=\"%s\")\n", + parent, data ? data : "(null)"); +#endif /* DEBUG */ + + /* + * Range check input... + */ + + if (!data) + return (NULL); + + /* + * Create the node and set the name value... + */ + + if ((node = mxml_new(parent, MXML_ELEMENT)) != NULL) + node->value.element.name = _mxml_strdupf("![CDATA[%s]]", data); + + return (node); +} + + +/* + * 'mxmlNewCustom()' - Create a new custom data node. + * + * The new custom node is added to the end of the specified parent's child + * list. The constant MXML_NO_PARENT can be used to specify that the new + * element node has no parent. NULL can be passed when the data in the + * node is not dynamically allocated or is separately managed. + * + * @since Mini-XML 2.1@ + */ + +mxml_node_t * /* O - New node */ +mxmlNewCustom( + mxml_node_t *parent, /* I - Parent node or MXML_NO_PARENT */ + void *data, /* I - Pointer to data */ + mxml_custom_destroy_cb_t destroy) /* I - Function to destroy data */ +{ + mxml_node_t *node; /* New node */ + + +#ifdef DEBUG + fprintf(stderr, "mxmlNewCustom(parent=%p, data=%p, destroy=%p)\n", parent, + data, destroy); +#endif /* DEBUG */ + + /* + * Create the node and set the value... + */ + + if ((node = mxml_new(parent, MXML_CUSTOM)) != NULL) + { + node->value.custom.data = data; + node->value.custom.destroy = destroy; + } + + return (node); +} + + +/* + * 'mxmlNewElement()' - Create a new element node. + * + * The new element node is added to the end of the specified parent's child + * list. The constant MXML_NO_PARENT can be used to specify that the new + * element node has no parent. + */ + +mxml_node_t * /* O - New node */ +mxmlNewElement(mxml_node_t *parent, /* I - Parent node or MXML_NO_PARENT */ + const char *name) /* I - Name of element */ +{ + mxml_node_t *node; /* New node */ + + +#ifdef DEBUG + fprintf(stderr, "mxmlNewElement(parent=%p, name=\"%s\")\n", parent, + name ? name : "(null)"); +#endif /* DEBUG */ + + /* + * Range check input... + */ + + if (!name) + return (NULL); + + /* + * Create the node and set the element name... + */ + + if ((node = mxml_new(parent, MXML_ELEMENT)) != NULL) + node->value.element.name = strdup(name); + + return (node); +} + + +/* + * 'mxmlNewInteger()' - Create a new integer node. + * + * The new integer node is added to the end of the specified parent's child + * list. The constant MXML_NO_PARENT can be used to specify that the new + * integer node has no parent. + */ + +mxml_node_t * /* O - New node */ +mxmlNewInteger(mxml_node_t *parent, /* I - Parent node or MXML_NO_PARENT */ + int integer) /* I - Integer value */ +{ + mxml_node_t *node; /* New node */ + + +#ifdef DEBUG + fprintf(stderr, "mxmlNewInteger(parent=%p, integer=%d)\n", parent, integer); +#endif /* DEBUG */ + + /* + * Create the node and set the element name... + */ + + if ((node = mxml_new(parent, MXML_INTEGER)) != NULL) + node->value.integer = integer; + + return (node); +} + + +/* + * 'mxmlNewOpaque()' - Create a new opaque string. + * + * The new opaque node is added to the end of the specified parent's child + * list. The constant MXML_NO_PARENT can be used to specify that the new + * opaque node has no parent. The opaque string must be nul-terminated and + * is copied into the new node. + */ + +mxml_node_t * /* O - New node */ +mxmlNewOpaque(mxml_node_t *parent, /* I - Parent node or MXML_NO_PARENT */ + const char *opaque) /* I - Opaque string */ +{ + mxml_node_t *node; /* New node */ + + +#ifdef DEBUG + fprintf(stderr, "mxmlNewOpaque(parent=%p, opaque=\"%s\")\n", parent, + opaque ? opaque : "(null)"); +#endif /* DEBUG */ + + /* + * Range check input... + */ + + if (!opaque) + return (NULL); + + /* + * Create the node and set the element name... + */ + + if ((node = mxml_new(parent, MXML_OPAQUE)) != NULL) + node->value.opaque = strdup(opaque); + + return (node); +} + + +/* + * 'mxmlNewReal()' - Create a new real number node. + * + * The new real number node is added to the end of the specified parent's + * child list. The constant MXML_NO_PARENT can be used to specify that + * the new real number node has no parent. + */ + +mxml_node_t * /* O - New node */ +mxmlNewReal(mxml_node_t *parent, /* I - Parent node or MXML_NO_PARENT */ + double real) /* I - Real number value */ +{ + mxml_node_t *node; /* New node */ + + +#ifdef DEBUG + fprintf(stderr, "mxmlNewReal(parent=%p, real=%g)\n", parent, real); +#endif /* DEBUG */ + + /* + * Create the node and set the element name... + */ + + if ((node = mxml_new(parent, MXML_REAL)) != NULL) + node->value.real = real; + + return (node); +} + + +/* + * 'mxmlNewText()' - Create a new text fragment node. + * + * The new text node is added to the end of the specified parent's child + * list. The constant MXML_NO_PARENT can be used to specify that the new + * text node has no parent. The whitespace parameter is used to specify + * whether leading whitespace is present before the node. The text + * string must be nul-terminated and is copied into the new node. + */ + +mxml_node_t * /* O - New node */ +mxmlNewText(mxml_node_t *parent, /* I - Parent node or MXML_NO_PARENT */ + int whitespace, /* I - 1 = leading whitespace, 0 = no whitespace */ + const char *string) /* I - String */ +{ + mxml_node_t *node; /* New node */ + + +#ifdef DEBUG + fprintf(stderr, "mxmlNewText(parent=%p, whitespace=%d, string=\"%s\")\n", + parent, whitespace, string ? string : "(null)"); +#endif /* DEBUG */ + + /* + * Range check input... + */ + + if (!string) + return (NULL); + + /* + * Create the node and set the text value... + */ + + if ((node = mxml_new(parent, MXML_TEXT)) != NULL) + { + node->value.text.whitespace = whitespace; + node->value.text.string = strdup(string); + } + + return (node); +} + + +/* + * 'mxmlNewTextf()' - Create a new formatted text fragment node. + * + * The new text node is added to the end of the specified parent's child + * list. The constant MXML_NO_PARENT can be used to specify that the new + * text node has no parent. The whitespace parameter is used to specify + * whether leading whitespace is present before the node. The format + * string must be nul-terminated and is formatted into the new node. + */ + +mxml_node_t * /* O - New node */ +mxmlNewTextf(mxml_node_t *parent, /* I - Parent node or MXML_NO_PARENT */ + int whitespace, /* I - 1 = leading whitespace, 0 = no whitespace */ + const char *format, /* I - Printf-style frmat string */ + ...) /* I - Additional args as needed */ +{ + mxml_node_t *node; /* New node */ + va_list ap; /* Pointer to arguments */ + + +#ifdef DEBUG + fprintf(stderr, "mxmlNewTextf(parent=%p, whitespace=%d, format=\"%s\", ...)\n", + parent, whitespace, format ? format : "(null)"); +#endif /* DEBUG */ + + /* + * Range check input... + */ + + if (!format) + return (NULL); + + /* + * Create the node and set the text value... + */ + + if ((node = mxml_new(parent, MXML_TEXT)) != NULL) + { + va_start(ap, format); + + node->value.text.whitespace = whitespace; + node->value.text.string = _mxml_vstrdupf(format, ap); + + va_end(ap); + } + + return (node); +} + + +/* + * 'mxmlRemove()' - Remove a node from its parent. + * + * Does not free memory used by the node - use mxmlDelete() for that. + * This function does nothing if the node has no parent. + */ + +void +mxmlRemove(mxml_node_t *node) /* I - Node to remove */ +{ +#ifdef DEBUG + fprintf(stderr, "mxmlRemove(node=%p)\n", node); +#endif /* DEBUG */ + + /* + * Range check input... + */ + + if (!node || !node->parent) + return; + + /* + * Remove from parent... + */ + +#if DEBUG > 1 + fprintf(stderr, " BEFORE: node->parent=%p\n", node->parent); + if (node->parent) + { + fprintf(stderr, " BEFORE: node->parent->child=%p\n", node->parent->child); + fprintf(stderr, " BEFORE: node->parent->last_child=%p\n", node->parent->last_child); + } + fprintf(stderr, " BEFORE: node->child=%p\n", node->child); + fprintf(stderr, " BEFORE: node->last_child=%p\n", node->last_child); + fprintf(stderr, " BEFORE: node->prev=%p\n", node->prev); + fprintf(stderr, " BEFORE: node->next=%p\n", node->next); +#endif /* DEBUG > 1 */ + + if (node->prev) + node->prev->next = node->next; + else + node->parent->child = node->next; + + if (node->next) + node->next->prev = node->prev; + else + node->parent->last_child = node->prev; + + node->parent = NULL; + node->prev = NULL; + node->next = NULL; + +#if DEBUG > 1 + fprintf(stderr, " AFTER: node->parent=%p\n", node->parent); + if (node->parent) + { + fprintf(stderr, " AFTER: node->parent->child=%p\n", node->parent->child); + fprintf(stderr, " AFTER: node->parent->last_child=%p\n", node->parent->last_child); + } + fprintf(stderr, " AFTER: node->child=%p\n", node->child); + fprintf(stderr, " AFTER: node->last_child=%p\n", node->last_child); + fprintf(stderr, " AFTER: node->prev=%p\n", node->prev); + fprintf(stderr, " AFTER: node->next=%p\n", node->next); +#endif /* DEBUG > 1 */ +} + + +/* + * 'mxmlNewXML()' - Create a new XML document tree. + * + * The "version" argument specifies the version number to put in the + * ?xml element node. If NULL, version 1.0 is assumed. + * + * @since Mini-XML 2.3@ + */ + +mxml_node_t * /* O - New ?xml node */ +mxmlNewXML(const char *version) /* I - Version number to use */ +{ + char element[1024]; /* Element text */ + + + snprintf(element, sizeof(element), "?xml version=\"%s\" encoding=\"utf-8\"?", + version ? version : "1.0"); + + return (mxmlNewElement(NULL, element)); +} + + +/* + * 'mxmlRelease()' - Release a node. + * + * When the reference count reaches zero, the node (and any children) + * is deleted via mxmlDelete(). + * + * @since Mini-XML 2.3@ + */ + +int /* O - New reference count */ +mxmlRelease(mxml_node_t *node) /* I - Node */ +{ + if (node) + { + if ((-- node->ref_count) <= 0) + { + mxmlDelete(node); + return (0); + } + else + return (node->ref_count); + } + else + return (-1); +} + + +/* + * 'mxmlRetain()' - Retain a node. + * + * @since Mini-XML 2.3@ + */ + +int /* O - New reference count */ +mxmlRetain(mxml_node_t *node) /* I - Node */ +{ + if (node) + return (++ node->ref_count); + else + return (-1); +} + + +/* + * 'mxml_new()' - Create a new node. + */ + +static mxml_node_t * /* O - New node */ +mxml_new(mxml_node_t *parent, /* I - Parent node */ + mxml_type_t type) /* I - Node type */ +{ + mxml_node_t *node; /* New node */ + + +#if DEBUG > 1 + fprintf(stderr, "mxml_new(parent=%p, type=%d)\n", parent, type); +#endif /* DEBUG > 1 */ + + /* + * Allocate memory for the node... + */ + + if ((node = calloc(1, sizeof(mxml_node_t))) == NULL) + { +#if DEBUG > 1 + fputs(" returning NULL\n", stderr); +#endif /* DEBUG > 1 */ + + return (NULL); + } + +#if DEBUG > 1 + fprintf(stderr, " returning %p\n", node); +#endif /* DEBUG > 1 */ + + /* + * Set the node type... + */ + + node->type = type; + node->ref_count = 1; + + /* + * Add to the parent if present... + */ + + if (parent) + mxmlAdd(parent, MXML_ADD_AFTER, MXML_ADD_TO_PARENT, node); + + /* + * Return the new node... + */ + + return (node); +} + + +/* + * End of "$Id: mxml-node.c 436 2011-01-22 01:02:05Z mike $". + */ diff --git a/xml/mxml-private.c b/xml/mxml-private.c new file mode 100644 index 0000000..72f3e23 --- /dev/null +++ b/xml/mxml-private.c @@ -0,0 +1,331 @@ +/* + * "$Id: mxml-private.c 422 2010-11-07 22:55:11Z mike $" + * + * Private functions for Mini-XML, a small XML-like file parsing library. + * + * Copyright 2003-2010 by Michael R Sweet. + * + * These coded instructions, statements, and computer programs are the + * property of Michael R Sweet and are protected by Federal copyright + * law. Distribution and use rights are outlined in the file "COPYING" + * which should have been included with this file. If this file is + * missing or damaged, see the license at: + * + * http://www.minixml.org/ + * + * Contents: + * + * mxml_error() - Display an error message. + * mxml_integer_cb() - Default callback for integer values. + * mxml_opaque_cb() - Default callback for opaque values. + * mxml_real_cb() - Default callback for real number values. + * _mxml_global() - Get global data. + */ + +/* + * Include necessary headers... + */ + +#include "mxml-private.h" + + +/* + * Some crazy people think that unloading a shared object is a good or safe + * thing to do. Unfortunately, most objects are simply *not* safe to unload + * and bad things *will* happen. + * + * The following mess of conditional code allows us to provide a destructor + * function in Mini-XML for our thread-global storage so that it can possibly + * be unloaded safely, although since there is no standard way to do so I + * can't even provide any guarantees that you can do it safely on all platforms. + * + * This code currently supports AIX, HP-UX, Linux, Mac OS X, Solaris, and + * Windows. It might work on the BSDs and IRIX, but I haven't tested that. + */ + +#if defined(__sun) || defined(_AIX) +# pragma fini(_mxml_fini) +# define _MXML_FINI _mxml_fini +#elif defined(__hpux) +# pragma FINI _mxml_fini +# define _MXML_FINI _mxml_fini +#elif defined(__GNUC__) /* Linux and Mac OS X */ +# define _MXML_FINI __attribute((destructor)) _mxml_fini +#else +# define _MXML_FINI _fini +#endif /* __sun */ + + +/* + * 'mxml_error()' - Display an error message. + */ + +void +mxml_error(const char *format, /* I - Printf-style format string */ + ...) /* I - Additional arguments as needed */ +{ + va_list ap; /* Pointer to arguments */ + char s[1024]; /* Message string */ + _mxml_global_t *global = _mxml_global(); + /* Global data */ + + + /* + * Range check input... + */ + + if (!format) + return; + + /* + * Format the error message string... + */ + + va_start(ap, format); + + vsnprintf(s, sizeof(s), format, ap); + + va_end(ap); + + /* + * And then display the error message... + */ + + if (global->error_cb) + (*global->error_cb)(s); + else + fprintf(stderr, "mxml: %s\n", s); +} + + +/* + * 'mxml_ignore_cb()' - Default callback for ignored values. + */ + +mxml_type_t /* O - Node type */ +mxml_ignore_cb(mxml_node_t *node) /* I - Current node */ +{ + (void)node; + + return (MXML_IGNORE); +} + + +/* + * 'mxml_integer_cb()' - Default callback for integer values. + */ + +mxml_type_t /* O - Node type */ +mxml_integer_cb(mxml_node_t *node) /* I - Current node */ +{ + (void)node; + + return (MXML_INTEGER); +} + + +/* + * 'mxml_opaque_cb()' - Default callback for opaque values. + */ + +mxml_type_t /* O - Node type */ +mxml_opaque_cb(mxml_node_t *node) /* I - Current node */ +{ + (void)node; + + return (MXML_OPAQUE); +} + + +/* + * 'mxml_real_cb()' - Default callback for real number values. + */ + +mxml_type_t /* O - Node type */ +mxml_real_cb(mxml_node_t *node) /* I - Current node */ +{ + (void)node; + + return (MXML_REAL); +} + + +#ifdef HAVE_PTHREAD_H /**** POSIX threading ****/ +# include + +static pthread_key_t _mxml_key = -1; /* Thread local storage key */ +static pthread_once_t _mxml_key_once = PTHREAD_ONCE_INIT; + /* One-time initialization object */ +static void _mxml_init(void); +static void _mxml_destructor(void *g); + + +/* + * '_mxml_destructor()' - Free memory used for globals... + */ + +static void +_mxml_destructor(void *g) /* I - Global data */ +{ + free(g); +} + + +/* + * '_mxml_fini()' - Clean up when unloaded. + */ + +static void +_MXML_FINI(void) +{ + _mxml_global_t *global; /* Global data */ + + + if (_mxml_key != -1) + { + if ((global = (_mxml_global_t *)pthread_getspecific(_mxml_key)) != NULL) + _mxml_destructor(global); + + pthread_key_delete(_mxml_key); + _mxml_key = -1; + } +} + + +/* + * '_mxml_global()' - Get global data. + */ + +_mxml_global_t * /* O - Global data */ +_mxml_global(void) +{ + _mxml_global_t *global; /* Global data */ + + + pthread_once(&_mxml_key_once, _mxml_init); + + if ((global = (_mxml_global_t *)pthread_getspecific(_mxml_key)) == NULL) + { + global = (_mxml_global_t *)calloc(1, sizeof(_mxml_global_t)); + pthread_setspecific(_mxml_key, global); + + global->num_entity_cbs = 1; + global->entity_cbs[0] = _mxml_entity_cb; + global->wrap = 72; + } + + return (global); +} + + +/* + * '_mxml_init()' - Initialize global data... + */ + +static void +_mxml_init(void) +{ + pthread_key_create(&_mxml_key, _mxml_destructor); +} + + +#elif defined(WIN32) && defined(MXML1_EXPORTS) /**** WIN32 threading ****/ +# include + +static DWORD _mxml_tls_index; /* Index for global storage */ + + +/* + * 'DllMain()' - Main entry for library. + */ + +BOOL WINAPI /* O - Success/failure */ +DllMain(HINSTANCE hinst, /* I - DLL module handle */ + DWORD reason, /* I - Reason */ + LPVOID reserved) /* I - Unused */ +{ + _mxml_global_t *global; /* Global data */ + + + (void)hinst; + (void)reserved; + + switch (reason) + { + case DLL_PROCESS_ATTACH : /* Called on library initialization */ + if ((_mxml_tls_index = TlsAlloc()) == TLS_OUT_OF_INDEXES) + return (FALSE); + break; + + case DLL_THREAD_DETACH : /* Called when a thread terminates */ + if ((global = (_mxml_global_t *)TlsGetValue(_mxml_tls_index)) != NULL) + free(global); + break; + + case DLL_PROCESS_DETACH : /* Called when library is unloaded */ + if ((global = (_mxml_global_t *)TlsGetValue(_mxml_tls_index)) != NULL) + free(global); + + TlsFree(_mxml_tls_index); + break; + + default: + break; + } + + return (TRUE); +} + + +/* + * '_mxml_global()' - Get global data. + */ + +_mxml_global_t * /* O - Global data */ +_mxml_global(void) +{ + _mxml_global_t *global; /* Global data */ + + + if ((global = (_mxml_global_t *)TlsGetValue(_mxml_tls_index)) == NULL) + { + global = (_mxml_global_t *)calloc(1, sizeof(_mxml_global_t)); + + global->num_entity_cbs = 1; + global->entity_cbs[0] = _mxml_entity_cb; + global->wrap = 72; + + TlsSetValue(_mxml_tls_index, (LPVOID)global); + } + + return (global); +} + + +#else /**** No threading ****/ +/* + * '_mxml_global()' - Get global data. + */ + +_mxml_global_t * /* O - Global data */ +_mxml_global(void) +{ + static _mxml_global_t global = /* Global data */ + { + NULL, /* error_cb */ + 1, /* num_entity_cbs */ + { _mxml_entity_cb }, /* entity_cbs */ + 72, /* wrap */ + NULL, /* custom_load_cb */ + NULL /* custom_save_cb */ + }; + + + return (&global); +} +#endif /* HAVE_PTHREAD_H */ + + +/* + * End of "$Id: mxml-private.c 422 2010-11-07 22:55:11Z mike $". + */ diff --git a/xml/mxml-private.h b/xml/mxml-private.h new file mode 100644 index 0000000..8789e6c --- /dev/null +++ b/xml/mxml-private.h @@ -0,0 +1,50 @@ +/* + * "$Id: mxml-private.h 408 2010-09-19 05:26:46Z mike $" + * + * Private definitions for Mini-XML, a small XML-like file parsing library. + * + * Copyright 2003-2010 by Michael R Sweet. + * + * These coded instructions, statements, and computer programs are the + * property of Michael R Sweet and are protected by Federal copyright + * law. Distribution and use rights are outlined in the file "COPYING" + * which should have been included with this file. If this file is + * missing or damaged, see the license at: + * + * http://www.minixml.org/ + */ + +/* + * Include necessary headers... + */ + +#include "config.h" +#include "mxml.h" + + +/* + * Global, per-thread data... + */ + +typedef struct _mxml_global_s +{ + void (*error_cb)(const char *); + int num_entity_cbs; + int (*entity_cbs[100])(const char *name); + int wrap; + mxml_custom_load_cb_t custom_load_cb; + mxml_custom_save_cb_t custom_save_cb; +} _mxml_global_t; + + +/* + * Functions... + */ + +extern _mxml_global_t *_mxml_global(void); +extern int _mxml_entity_cb(const char *name); + + +/* + * End of "$Id: mxml-private.h 408 2010-09-19 05:26:46Z mike $". + */ diff --git a/xml/mxml-search.c b/xml/mxml-search.c new file mode 100644 index 0000000..3b4eb3f --- /dev/null +++ b/xml/mxml-search.c @@ -0,0 +1,363 @@ +/* + * "$Id: mxml-search.c 427 2011-01-03 02:03:29Z mike $" + * + * Search/navigation functions for Mini-XML, a small XML-like file + * parsing library. + * + * Copyright 2003-2010 by Michael R Sweet. + * + * These coded instructions, statements, and computer programs are the + * property of Michael R Sweet and are protected by Federal copyright + * law. Distribution and use rights are outlined in the file "COPYING" + * which should have been included with this file. If this file is + * missing or damaged, see the license at: + * + * http://www.minixml.org/ + * + * Contents: + * + * mxmlFindElement() - Find the named element. + * mxmlFindValue() - Find a value with the given path. + * mxmlWalkNext() - Walk to the next logical node in the tree. + * mxmlWalkPrev() - Walk to the previous logical node in the tree. + */ + +/* + * Include necessary headers... + */ + +#include "config.h" +#include "mxml.h" + + +/* + * 'mxmlFindElement()' - Find the named element. + * + * The search is constrained by the name, attribute name, and value; any + * NULL names or values are treated as wildcards, so different kinds of + * searches can be implemented by looking for all elements of a given name + * or all elements with a specific attribute. The descend argument determines + * whether the search descends into child nodes; normally you will use + * MXML_DESCEND_FIRST for the initial search and MXML_NO_DESCEND to find + * additional direct descendents of the node. The top node argument + * constrains the search to a particular node's children. + */ + +mxml_node_t * /* O - Element node or NULL */ +mxmlFindElement(mxml_node_t *node, /* I - Current node */ + mxml_node_t *top, /* I - Top node */ + const char *name, /* I - Element name or NULL for any */ + const char *attr, /* I - Attribute name, or NULL for none */ + const char *value, /* I - Attribute value, or NULL for any */ + int descend) /* I - Descend into tree - MXML_DESCEND, MXML_NO_DESCEND, or MXML_DESCEND_FIRST */ +{ + const char *temp; /* Current attribute value */ + + + /* + * Range check input... + */ + + if (!node || !top || (!attr && value)) + return (NULL); + + /* + * Start with the next node... + */ + + node = mxmlWalkNext(node, top, descend); + + /* + * Loop until we find a matching element... + */ + + while (node != NULL) + { + /* + * See if this node matches... + */ + + if (node->type == MXML_ELEMENT && + node->value.element.name && + (!name || !strcmp(node->value.element.name, name))) + { + /* + * See if we need to check for an attribute... + */ + + if (!attr) + return (node); /* No attribute search, return it... */ + + /* + * Check for the attribute... + */ + + if ((temp = mxmlElementGetAttr(node, attr)) != NULL) + { + /* + * OK, we have the attribute, does it match? + */ + + if (!value || !strcmp(value, temp)) + return (node); /* Yes, return it... */ + } + } + + /* + * No match, move on to the next node... + */ + + if (descend == MXML_DESCEND) + node = mxmlWalkNext(node, top, MXML_DESCEND); + else + node = node->next; + } + + return (NULL); +} + +/* + * 'mxmlFindPathNode()' - Find a node with the given path. + * + * The "path" is a slash-separated list of element names. The name "*" is + * considered a wildcard for one or more levels of elements. For example, + * "foo/one/two", "bar/two/one", "*\/one", and so forth. + * + * @since Mini-XML 2.7@ + */ + +mxml_node_t * /* O - Found node or NULL */ +mxmlFindPathNode(mxml_node_t *top, /* I - Top node */ + const char *path) /* I - Path to element */ +{ + mxml_node_t *node; /* Current node */ + char element[256]; /* Current element name */ + const char *pathsep; /* Separator in path */ + int descend; /* mxmlFindElement option */ + + + /* + * Range check input... + */ + + if (!top || !path || !*path) + return (NULL); + + /* + * Search each element in the path... + */ + + node = top; + while (*path) + { + /* + * Handle wildcards... + */ + + if (!strncmp(path, "*/", 2)) + { + path += 2; + descend = MXML_DESCEND; + } + else + descend = MXML_DESCEND_FIRST; + + /* + * Get the next element in the path... + */ + + if ((pathsep = strchr(path, '/')) == NULL) + pathsep = path + strlen(path); + + if (pathsep == path || (pathsep - path) >= sizeof(element)) + return (NULL); + + memcpy(element, path, pathsep - path); + element[pathsep - path] = '\0'; + + if (*pathsep) + path = pathsep + 1; + else + path = pathsep; + + /* + * Search for the element... + */ + + if ((node = mxmlFindElement(node, node, element, NULL, NULL, + descend)) == NULL) + return (NULL); + } + + return (node); +} + + +/* + * 'mxmlFindPath()' - Find a node with the given path. + * + * The "path" is a slash-separated list of element names. The name "*" is + * considered a wildcard for one or more levels of elements. For example, + * "foo/one/two", "bar/two/one", "*\/one", and so forth. + * + * The first child node of the found node is returned if the given node has + * children and the first child is a value node. + * + * @since Mini-XML 2.7@ + */ + +mxml_node_t * /* O - Found node or NULL */ +mxmlFindPath(mxml_node_t *top, /* I - Top node */ + const char *path) /* I - Path to element */ +{ + mxml_node_t *node; /* Current node */ + char element[256]; /* Current element name */ + const char *pathsep; /* Separator in path */ + int descend; /* mxmlFindElement option */ + + + /* + * Range check input... + */ + + if (!top || !path || !*path) + return (NULL); + + /* + * Search each element in the path... + */ + + node = top; + while (*path) + { + /* + * Handle wildcards... + */ + + if (!strncmp(path, "*/", 2)) + { + path += 2; + descend = MXML_DESCEND; + } + else + descend = MXML_DESCEND_FIRST; + + /* + * Get the next element in the path... + */ + + if ((pathsep = strchr(path, '/')) == NULL) + pathsep = path + strlen(path); + + if (pathsep == path || (pathsep - path) >= sizeof(element)) + return (NULL); + + memcpy(element, path, pathsep - path); + element[pathsep - path] = '\0'; + + if (*pathsep) + path = pathsep + 1; + else + path = pathsep; + + /* + * Search for the element... + */ + + if ((node = mxmlFindElement(node, node, element, NULL, NULL, + descend)) == NULL) + return (NULL); + } + + /* + * If we get this far, return the node or its first child... + */ + + if (node->child && node->child->type != MXML_ELEMENT) + return (node->child); + else + return (node); +} + + +/* + * 'mxmlWalkNext()' - Walk to the next logical node in the tree. + * + * The descend argument controls whether the first child is considered + * to be the next node. The top node argument constrains the walk to + * the node's children. + */ + +mxml_node_t * /* O - Next node or NULL */ +mxmlWalkNext(mxml_node_t *node, /* I - Current node */ + mxml_node_t *top, /* I - Top node */ + int descend) /* I - Descend into tree - MXML_DESCEND, MXML_NO_DESCEND, or MXML_DESCEND_FIRST */ +{ + if (!node) + return (NULL); + else if (node->child && descend) + return (node->child); + else if (node == top) + return (NULL); + else if (node->next) + return (node->next); + else if (node->parent && node->parent != top) + { + node = node->parent; + + while (!node->next) + if (node->parent == top || !node->parent) + return (NULL); + else + node = node->parent; + + return (node->next); + } + else + return (NULL); +} + + +/* + * 'mxmlWalkPrev()' - Walk to the previous logical node in the tree. + * + * The descend argument controls whether the previous node's last child + * is considered to be the previous node. The top node argument constrains + * the walk to the node's children. + */ + +mxml_node_t * /* O - Previous node or NULL */ +mxmlWalkPrev(mxml_node_t *node, /* I - Current node */ + mxml_node_t *top, /* I - Top node */ + int descend) /* I - Descend into tree - MXML_DESCEND, MXML_NO_DESCEND, or MXML_DESCEND_FIRST */ +{ + if (!node || node == top) + return (NULL); + else if (node->prev) + { + if (node->prev->last_child && descend) + { + /* + * Find the last child under the previous node... + */ + + node = node->prev->last_child; + + while (node->last_child) + node = node->last_child; + + return (node); + } + else + return (node->prev); + } + else if (node->parent != top) + return (node->parent); + else + return (NULL); +} + + +/* + * End of "$Id: mxml-search.c 427 2011-01-03 02:03:29Z mike $". + */ diff --git a/xml/mxml-set.c b/xml/mxml-set.c new file mode 100644 index 0000000..b0bd527 --- /dev/null +++ b/xml/mxml-set.c @@ -0,0 +1,349 @@ +/* + * "$Id: mxml-set.c 441 2011-12-09 23:49:00Z mike $" + * + * Node set functions for Mini-XML, a small XML-like file parsing library. + * + * Copyright 2003-2011 by Michael R Sweet. + * + * These coded instructions, statements, and computer programs are the + * property of Michael R Sweet and are protected by Federal copyright + * law. Distribution and use rights are outlined in the file "COPYING" + * which should have been included with this file. If this file is + * missing or damaged, see the license at: + * + * http://www.minixml.org/ + * + * Contents: + * + * mxmlSetCDATA() - Set the element name of a CDATA node. + * mxmlSetCustom() - Set the data and destructor of a custom data node. + * mxmlSetElement() - Set the name of an element node. + * mxmlSetInteger() - Set the value of an integer node. + * mxmlSetOpaque() - Set the value of an opaque node. + * mxmlSetReal() - Set the value of a real number node. + * mxmlSetText() - Set the value of a text node. + * mxmlSetTextf() - Set the value of a text node to a formatted string. + * mxmlSetUserData() - Set the user data pointer for a node. + */ + +/* + * Include necessary headers... + */ + +#include "config.h" +#include "mxml.h" + + +/* + * 'mxmlSetCDATA()' - Set the element name of a CDATA node. + * + * The node is not changed if it (or its first child) is not a CDATA element node. + * + * @since Mini-XML 2.3@ + */ + +int /* O - 0 on success, -1 on failure */ +mxmlSetCDATA(mxml_node_t *node, /* I - Node to set */ + const char *data) /* I - New data string */ +{ + /* + * Range check input... + */ + + if (node && node->type == MXML_ELEMENT && + strncmp(node->value.element.name, "![CDATA[", 8) && + node->child && node->child->type == MXML_ELEMENT && + !strncmp(node->child->value.element.name, "![CDATA[", 8)) + node = node->child; + + if (!node || node->type != MXML_ELEMENT || !data || + strncmp(node->value.element.name, "![CDATA[", 8)) + return (-1); + + /* + * Free any old element value and set the new value... + */ + + if (node->value.element.name) + free(node->value.element.name); + + node->value.element.name = _mxml_strdupf("![CDATA[%s]]", data); + + return (0); +} + + +/* + * 'mxmlSetCustom()' - Set the data and destructor of a custom data node. + * + * The node is not changed if it (or its first child) is not a custom node. + * + * @since Mini-XML 2.1@ + */ + +int /* O - 0 on success, -1 on failure */ +mxmlSetCustom( + mxml_node_t *node, /* I - Node to set */ + void *data, /* I - New data pointer */ + mxml_custom_destroy_cb_t destroy) /* I - New destructor function */ +{ + /* + * Range check input... + */ + + if (node && node->type == MXML_ELEMENT && + node->child && node->child->type == MXML_CUSTOM) + node = node->child; + + if (!node || node->type != MXML_CUSTOM) + return (-1); + + /* + * Free any old element value and set the new value... + */ + + if (node->value.custom.data && node->value.custom.destroy) + (*(node->value.custom.destroy))(node->value.custom.data); + + node->value.custom.data = data; + node->value.custom.destroy = destroy; + + return (0); +} + + +/* + * 'mxmlSetElement()' - Set the name of an element node. + * + * The node is not changed if it is not an element node. + */ + +int /* O - 0 on success, -1 on failure */ +mxmlSetElement(mxml_node_t *node, /* I - Node to set */ + const char *name) /* I - New name string */ +{ + /* + * Range check input... + */ + + if (!node || node->type != MXML_ELEMENT || !name) + return (-1); + + /* + * Free any old element value and set the new value... + */ + + if (node->value.element.name) + free(node->value.element.name); + + node->value.element.name = strdup(name); + + return (0); +} + + +/* + * 'mxmlSetInteger()' - Set the value of an integer node. + * + * The node is not changed if it (or its first child) is not an integer node. + */ + +int /* O - 0 on success, -1 on failure */ +mxmlSetInteger(mxml_node_t *node, /* I - Node to set */ + int integer) /* I - Integer value */ +{ + /* + * Range check input... + */ + + if (node && node->type == MXML_ELEMENT && + node->child && node->child->type == MXML_INTEGER) + node = node->child; + + if (!node || node->type != MXML_INTEGER) + return (-1); + + /* + * Set the new value and return... + */ + + node->value.integer = integer; + + return (0); +} + + +/* + * 'mxmlSetOpaque()' - Set the value of an opaque node. + * + * The node is not changed if it (or its first child) is not an opaque node. + */ + +int /* O - 0 on success, -1 on failure */ +mxmlSetOpaque(mxml_node_t *node, /* I - Node to set */ + const char *opaque) /* I - Opaque string */ +{ + /* + * Range check input... + */ + + if (node && node->type == MXML_ELEMENT && + node->child && node->child->type == MXML_OPAQUE) + node = node->child; + + if (!node || node->type != MXML_OPAQUE || !opaque) + return (-1); + + /* + * Free any old opaque value and set the new value... + */ + + if (node->value.opaque) + free(node->value.opaque); + + node->value.opaque = strdup(opaque); + + return (0); +} + + +/* + * 'mxmlSetReal()' - Set the value of a real number node. + * + * The node is not changed if it (or its first child) is not a real number node. + */ + +int /* O - 0 on success, -1 on failure */ +mxmlSetReal(mxml_node_t *node, /* I - Node to set */ + double real) /* I - Real number value */ +{ + /* + * Range check input... + */ + + if (node && node->type == MXML_ELEMENT && + node->child && node->child->type == MXML_REAL) + node = node->child; + + if (!node || node->type != MXML_REAL) + return (-1); + + /* + * Set the new value and return... + */ + + node->value.real = real; + + return (0); +} + + +/* + * 'mxmlSetText()' - Set the value of a text node. + * + * The node is not changed if it (or its first child) is not a text node. + */ + +int /* O - 0 on success, -1 on failure */ +mxmlSetText(mxml_node_t *node, /* I - Node to set */ + int whitespace, /* I - 1 = leading whitespace, 0 = no whitespace */ + const char *string) /* I - String */ +{ + /* + * Range check input... + */ + + if (node && node->type == MXML_ELEMENT && + node->child && node->child->type == MXML_TEXT) + node = node->child; + + if (!node || node->type != MXML_TEXT || !string) + return (-1); + + /* + * Free any old string value and set the new value... + */ + + if (node->value.text.string) + free(node->value.text.string); + + node->value.text.whitespace = whitespace; + node->value.text.string = strdup(string); + + return (0); +} + + +/* + * 'mxmlSetTextf()' - Set the value of a text node to a formatted string. + * + * The node is not changed if it (or its first child) is not a text node. + */ + +int /* O - 0 on success, -1 on failure */ +mxmlSetTextf(mxml_node_t *node, /* I - Node to set */ + int whitespace, /* I - 1 = leading whitespace, 0 = no whitespace */ + const char *format, /* I - Printf-style format string */ + ...) /* I - Additional arguments as needed */ +{ + va_list ap; /* Pointer to arguments */ + + + /* + * Range check input... + */ + + if (node && node->type == MXML_ELEMENT && + node->child && node->child->type == MXML_TEXT) + node = node->child; + + if (!node || node->type != MXML_TEXT || !format) + return (-1); + + /* + * Free any old string value and set the new value... + */ + + if (node->value.text.string) + free(node->value.text.string); + + va_start(ap, format); + + node->value.text.whitespace = whitespace; + node->value.text.string = _mxml_strdupf(format, ap); + + va_end(ap); + + return (0); +} + + +/* + * 'mxmlSetUserData()' - Set the user data pointer for a node. + * + * @since Mini-XML 2.7@ + */ + +int /* O - 0 on success, -1 on failure */ +mxmlSetUserData(mxml_node_t *node, /* I - Node to set */ + void *data) /* I - User data pointer */ +{ + /* + * Range check input... + */ + + if (!node) + return (-1); + + /* + * Set the user data pointer and return... + */ + + node->user_data = data; + return (0); +} + + +/* + * End of "$Id: mxml-set.c 441 2011-12-09 23:49:00Z mike $". + */ diff --git a/xml/mxml-string.c b/xml/mxml-string.c new file mode 100644 index 0000000..6be4252 --- /dev/null +++ b/xml/mxml-string.c @@ -0,0 +1,476 @@ +/* + * "$Id: mxml-string.c 424 2010-12-25 16:21:50Z mike $" + * + * String functions for Mini-XML, a small XML-like file parsing library. + * + * Copyright 2003-2010 by Michael R Sweet. + * + * These coded instructions, statements, and computer programs are the + * property of Michael R Sweet and are protected by Federal copyright + * law. Distribution and use rights are outlined in the file "COPYING" + * which should have been included with this file. If this file is + * missing or damaged, see the license at: + * + * http://www.minixml.org/ + * + * Contents: + * + * _mxml_snprintf() - Format a string. + * _mxml_strdup() - Duplicate a string. + * _mxml_strdupf() - Format and duplicate a string. + * _mxml_vsnprintf() - Format a string into a fixed size buffer. + * _mxml_vstrdupf() - Format and duplicate a string. + */ + +/* + * Include necessary headers... + */ + +#include "config.h" + + +/* + * The va_copy macro is part of C99, but many compilers don't implement it. + * Provide a "direct assignment" implmentation when va_copy isn't defined... + */ + +#ifndef va_copy +# ifdef __va_copy +# define va_copy(dst,src) __va_copy(dst,src) +# else +# define va_copy(dst,src) memcpy(&dst, &src, sizeof(va_list)) +# endif /* __va_copy */ +#endif /* va_copy */ + + +#ifndef HAVE_SNPRINTF +/* + * '_mxml_snprintf()' - Format a string. + */ + +int /* O - Number of bytes formatted */ +_mxml_snprintf(char *buffer, /* I - Output buffer */ + size_t bufsize, /* I - Size of output buffer */ + const char *format, /* I - Printf-style format string */ + ...) /* I - Additional arguments as needed */ +{ + va_list ap; /* Argument list */ + int bytes; /* Number of bytes formatted */ + + + va_start(ap, format); + bytes = vsnprintf(buffer, bufsize, format, ap); + va_end(ap); + + return (bytes); +} +#endif /* !HAVE_SNPRINTF */ + + +/* + * '_mxml_strdup()' - Duplicate a string. + */ + +#ifndef HAVE_STRDUP +char * /* O - New string pointer */ +_mxml_strdup(const char *s) /* I - String to duplicate */ +{ + char *t; /* New string pointer */ + + + if (s == NULL) + return (NULL); + + if ((t = malloc(strlen(s) + 1)) == NULL) + return (NULL); + + return (strcpy(t, s)); +} +#endif /* !HAVE_STRDUP */ + + +/* + * '_mxml_strdupf()' - Format and duplicate a string. + */ + +char * /* O - New string pointer */ +_mxml_strdupf(const char *format, /* I - Printf-style format string */ + ...) /* I - Additional arguments as needed */ +{ + va_list ap; /* Pointer to additional arguments */ + char *s; /* Pointer to formatted string */ + + + /* + * Get a pointer to the additional arguments, format the string, + * and return it... + */ + + va_start(ap, format); + s = _mxml_vstrdupf(format, ap); + va_end(ap); + + return (s); +} + + +#ifndef HAVE_VSNPRINTF +/* + * '_mxml_vsnprintf()' - Format a string into a fixed size buffer. + */ + +int /* O - Number of bytes formatted */ +_mxml_vsnprintf(char *buffer, /* O - Output buffer */ + size_t bufsize, /* O - Size of output buffer */ + const char *format, /* I - Printf-style format string */ + va_list ap) /* I - Pointer to additional arguments */ +{ + char *bufptr, /* Pointer to position in buffer */ + *bufend, /* Pointer to end of buffer */ + sign, /* Sign of format width */ + size, /* Size character (h, l, L) */ + type; /* Format type character */ + int width, /* Width of field */ + prec; /* Number of characters of precision */ + char tformat[100], /* Temporary format string for sprintf() */ + *tptr, /* Pointer into temporary format */ + temp[1024]; /* Buffer for formatted numbers */ + char *s; /* Pointer to string */ + int slen; /* Length of string */ + int bytes; /* Total number of bytes needed */ + + + /* + * Loop through the format string, formatting as needed... + */ + + bufptr = buffer; + bufend = buffer + bufsize - 1; + bytes = 0; + + while (*format) + { + if (*format == '%') + { + tptr = tformat; + *tptr++ = *format++; + + if (*format == '%') + { + if (bufptr && bufptr < bufend) *bufptr++ = *format; + bytes ++; + format ++; + continue; + } + else if (strchr(" -+#\'", *format)) + { + *tptr++ = *format; + sign = *format++; + } + else + sign = 0; + + if (*format == '*') + { + /* + * Get width from argument... + */ + + format ++; + width = va_arg(ap, int); + + snprintf(tptr, sizeof(tformat) - (tptr - tformat), "%d", width); + tptr += strlen(tptr); + } + else + { + width = 0; + + while (isdigit(*format & 255)) + { + if (tptr < (tformat + sizeof(tformat) - 1)) + *tptr++ = *format; + + width = width * 10 + *format++ - '0'; + } + } + + if (*format == '.') + { + if (tptr < (tformat + sizeof(tformat) - 1)) + *tptr++ = *format; + + format ++; + + if (*format == '*') + { + /* + * Get precision from argument... + */ + + format ++; + prec = va_arg(ap, int); + + snprintf(tptr, sizeof(tformat) - (tptr - tformat), "%d", prec); + tptr += strlen(tptr); + } + else + { + prec = 0; + + while (isdigit(*format & 255)) + { + if (tptr < (tformat + sizeof(tformat) - 1)) + *tptr++ = *format; + + prec = prec * 10 + *format++ - '0'; + } + } + } + else + prec = -1; + + if (*format == 'l' && format[1] == 'l') + { + size = 'L'; + + if (tptr < (tformat + sizeof(tformat) - 2)) + { + *tptr++ = 'l'; + *tptr++ = 'l'; + } + + format += 2; + } + else if (*format == 'h' || *format == 'l' || *format == 'L') + { + if (tptr < (tformat + sizeof(tformat) - 1)) + *tptr++ = *format; + + size = *format++; + } + + if (!*format) + break; + + if (tptr < (tformat + sizeof(tformat) - 1)) + *tptr++ = *format; + + type = *format++; + *tptr = '\0'; + + switch (type) + { + case 'E' : /* Floating point formats */ + case 'G' : + case 'e' : + case 'f' : + case 'g' : + if ((width + 2) > sizeof(temp)) + break; + + sprintf(temp, tformat, va_arg(ap, double)); + + bytes += strlen(temp); + + if (bufptr) + { + if ((bufptr + strlen(temp)) > bufend) + { + strncpy(bufptr, temp, (size_t)(bufend - bufptr)); + bufptr = bufend; + } + else + { + strcpy(bufptr, temp); + bufptr += strlen(temp); + } + } + break; + + case 'B' : /* Integer formats */ + case 'X' : + case 'b' : + case 'd' : + case 'i' : + case 'o' : + case 'u' : + case 'x' : + if ((width + 2) > sizeof(temp)) + break; + +#ifdef HAVE_LONG_LONG + if (size == 'L') + sprintf(temp, tformat, va_arg(ap, long long)); + else +#endif /* HAVE_LONG_LONG */ + sprintf(temp, tformat, va_arg(ap, int)); + + bytes += strlen(temp); + + if (bufptr) + { + if ((bufptr + strlen(temp)) > bufend) + { + strncpy(bufptr, temp, (size_t)(bufend - bufptr)); + bufptr = bufend; + } + else + { + strcpy(bufptr, temp); + bufptr += strlen(temp); + } + } + break; + + case 'p' : /* Pointer value */ + if ((width + 2) > sizeof(temp)) + break; + + sprintf(temp, tformat, va_arg(ap, void *)); + + bytes += strlen(temp); + + if (bufptr) + { + if ((bufptr + strlen(temp)) > bufend) + { + strncpy(bufptr, temp, (size_t)(bufend - bufptr)); + bufptr = bufend; + } + else + { + strcpy(bufptr, temp); + bufptr += strlen(temp); + } + } + break; + + case 'c' : /* Character or character array */ + bytes += width; + + if (bufptr) + { + if (width <= 1) + *bufptr++ = va_arg(ap, int); + else + { + if ((bufptr + width) > bufend) + width = bufend - bufptr; + + memcpy(bufptr, va_arg(ap, char *), (size_t)width); + bufptr += width; + } + } + break; + + case 's' : /* String */ + if ((s = va_arg(ap, char *)) == NULL) + s = "(null)"; + + slen = strlen(s); + if (slen > width && prec != width) + width = slen; + + bytes += width; + + if (bufptr) + { + if ((bufptr + width) > bufend) + width = bufend - bufptr; + + if (slen > width) + slen = width; + + if (sign == '-') + { + strncpy(bufptr, s, (size_t)slen); + memset(bufptr + slen, ' ', (size_t)(width - slen)); + } + else + { + memset(bufptr, ' ', (size_t)(width - slen)); + strncpy(bufptr + width - slen, s, (size_t)slen); + } + + bufptr += width; + } + break; + + case 'n' : /* Output number of chars so far */ + *(va_arg(ap, int *)) = bytes; + break; + } + } + else + { + bytes ++; + + if (bufptr && bufptr < bufend) + *bufptr++ = *format; + + format ++; + } + } + + /* + * Nul-terminate the string and return the number of characters needed. + */ + + *bufptr = '\0'; + + return (bytes); +} +#endif /* !HAVE_VSNPRINTF */ + + +/* + * '_mxml_vstrdupf()' - Format and duplicate a string. + */ + +char * /* O - New string pointer */ +_mxml_vstrdupf(const char *format, /* I - Printf-style format string */ + va_list ap) /* I - Pointer to additional arguments */ +{ + int bytes; /* Number of bytes required */ + char *buffer, /* String buffer */ + temp[256]; /* Small buffer for first vsnprintf */ + va_list apcopy; /* Copy of argument list */ + + + /* + * First format with a tiny buffer; this will tell us how many bytes are + * needed... + */ + + va_copy(apcopy, ap); + bytes = vsnprintf(temp, sizeof(temp), format, apcopy); + + if (bytes < sizeof(temp)) + { + /* + * Hey, the formatted string fits in the tiny buffer, so just dup that... + */ + + return (strdup(temp)); + } + + /* + * Allocate memory for the whole thing and reformat to the new, larger + * buffer... + */ + + if ((buffer = calloc(1, bytes + 1)) != NULL) + vsnprintf(buffer, bytes + 1, format, ap); + + /* + * Return the new string... + */ + + return (buffer); +} + + +/* + * End of "$Id: mxml-string.c 424 2010-12-25 16:21:50Z mike $". + */ diff --git a/xml/mxml.h b/xml/mxml.h new file mode 100644 index 0000000..08784e7 --- /dev/null +++ b/xml/mxml.h @@ -0,0 +1,330 @@ +/* + * "$Id: mxml.h 427 2011-01-03 02:03:29Z mike $" + * + * Header file for Mini-XML, a small XML-like file parsing library. + * + * Copyright 2003-2011 by Michael R Sweet. + * + * These coded instructions, statements, and computer programs are the + * property of Michael R Sweet and are protected by Federal copyright + * law. Distribution and use rights are outlined in the file "COPYING" + * which should have been included with this file. If this file is + * missing or damaged, see the license at: + * + * http://www.minixml.org/ + */ + +/* + * Prevent multiple inclusion... + */ + +#ifndef _mxml_h_ +# define _mxml_h_ + +/* + * Include necessary headers... + */ + +# include +# include +# include +# include +# include + + +/* + * Constants... + */ + +# define MXML_TAB 8 /* Tabs every N columns */ + +# define MXML_NO_CALLBACK 0 /* Don't use a type callback */ +# define MXML_INTEGER_CALLBACK mxml_integer_cb + /* Treat all data as integers */ +# define MXML_OPAQUE_CALLBACK mxml_opaque_cb + /* Treat all data as opaque */ +# define MXML_REAL_CALLBACK mxml_real_cb + /* Treat all data as real numbers */ +# define MXML_TEXT_CALLBACK 0 /* Treat all data as text */ +# define MXML_IGNORE_CALLBACK mxml_ignore_cb + /* Ignore all non-element content */ + +# define MXML_NO_PARENT 0 /* No parent for the node */ + +# define MXML_DESCEND 1 /* Descend when finding/walking */ +# define MXML_NO_DESCEND 0 /* Don't descend when finding/walking */ +# define MXML_DESCEND_FIRST -1 /* Descend for first find */ + +# define MXML_WS_BEFORE_OPEN 0 /* Callback for before open tag */ +# define MXML_WS_AFTER_OPEN 1 /* Callback for after open tag */ +# define MXML_WS_BEFORE_CLOSE 2 /* Callback for before close tag */ +# define MXML_WS_AFTER_CLOSE 3 /* Callback for after close tag */ + +# define MXML_ADD_BEFORE 0 /* Add node before specified node */ +# define MXML_ADD_AFTER 1 /* Add node after specified node */ +# define MXML_ADD_TO_PARENT NULL /* Add node relative to parent */ + + +/* + * Data types... + */ + +typedef enum mxml_sax_event_e /**** SAX event type. ****/ +{ + MXML_SAX_CDATA, /* CDATA node */ + MXML_SAX_COMMENT, /* Comment node */ + MXML_SAX_DATA, /* Data node */ + MXML_SAX_DIRECTIVE, /* Processing directive node */ + MXML_SAX_ELEMENT_CLOSE, /* Element closed */ + MXML_SAX_ELEMENT_OPEN /* Element opened */ +} mxml_sax_event_t; + +typedef enum mxml_type_e /**** The XML node type. ****/ +{ + MXML_IGNORE = -1, /* Ignore/throw away node @since Mini-XML 2.3@ */ + MXML_ELEMENT, /* XML element with attributes */ + MXML_INTEGER, /* Integer value */ + MXML_OPAQUE, /* Opaque string */ + MXML_REAL, /* Real value */ + MXML_TEXT, /* Text fragment */ + MXML_CUSTOM /* Custom data @since Mini-XML 2.1@ */ +} mxml_type_t; + +typedef void (*mxml_custom_destroy_cb_t)(void *); + /**** Custom data destructor ****/ + +typedef void (*mxml_error_cb_t)(const char *); + /**** Error callback function ****/ + +typedef struct mxml_attr_s /**** An XML element attribute value. @private@ ****/ +{ + char *name; /* Attribute name */ + char *value; /* Attribute value */ +} mxml_attr_t; + +typedef struct mxml_element_s /**** An XML element value. @private@ ****/ +{ + char *name; /* Name of element */ + int num_attrs; /* Number of attributes */ + mxml_attr_t *attrs; /* Attributes */ +} mxml_element_t; + +typedef struct mxml_text_s /**** An XML text value. @private@ ****/ +{ + int whitespace; /* Leading whitespace? */ + char *string; /* Fragment string */ +} mxml_text_t; + +typedef struct mxml_custom_s /**** An XML custom value. @private@ ****/ +{ + void *data; /* Pointer to (allocated) custom data */ + mxml_custom_destroy_cb_t destroy; /* Pointer to destructor function */ +} mxml_custom_t; + +typedef union mxml_value_u /**** An XML node value. @private@ ****/ +{ + mxml_element_t element; /* Element */ + int integer; /* Integer number */ + char *opaque; /* Opaque string */ + double real; /* Real number */ + mxml_text_t text; /* Text fragment */ + mxml_custom_t custom; /* Custom data @since Mini-XML 2.1@ */ +} mxml_value_t; + +struct mxml_node_s /**** An XML node. @private@ ****/ +{ + mxml_type_t type; /* Node type */ + struct mxml_node_s *next; /* Next node under same parent */ + struct mxml_node_s *prev; /* Previous node under same parent */ + struct mxml_node_s *parent; /* Parent node */ + struct mxml_node_s *child; /* First child node */ + struct mxml_node_s *last_child; /* Last child node */ + mxml_value_t value; /* Node value */ + int ref_count; /* Use count */ + void *user_data; /* User data */ +}; + +typedef struct mxml_node_s mxml_node_t; /**** An XML node. ****/ + +struct mxml_index_s /**** An XML node index. @private@ ****/ +{ + char *attr; /* Attribute used for indexing or NULL */ + int num_nodes; /* Number of nodes in index */ + int alloc_nodes; /* Allocated nodes in index */ + int cur_node; /* Current node */ + mxml_node_t **nodes; /* Node array */ +}; + +typedef struct mxml_index_s mxml_index_t; + /**** An XML node index. ****/ + +typedef int (*mxml_custom_load_cb_t)(mxml_node_t *, const char *); + /**** Custom data load callback function ****/ + +typedef char *(*mxml_custom_save_cb_t)(mxml_node_t *); + /**** Custom data save callback function ****/ + +typedef int (*mxml_entity_cb_t)(const char *); + /**** Entity callback function */ + +typedef mxml_type_t (*mxml_load_cb_t)(mxml_node_t *); + /**** Load callback function ****/ + +typedef const char *(*mxml_save_cb_t)(mxml_node_t *, int); + /**** Save callback function ****/ + +typedef void (*mxml_sax_cb_t)(mxml_node_t *, mxml_sax_event_t, void *); + /**** SAX callback function ****/ + + +/* + * C++ support... + */ + +# ifdef __cplusplus +extern "C" { +# endif /* __cplusplus */ + +/* + * Prototypes... + */ + +extern void mxmlAdd(mxml_node_t *parent, int where, + mxml_node_t *child, mxml_node_t *node); +extern void mxmlDelete(mxml_node_t *node); +extern void mxmlElementDeleteAttr(mxml_node_t *node, + const char *name); +extern const char *mxmlElementGetAttr(mxml_node_t *node, const char *name); +extern void mxmlElementSetAttr(mxml_node_t *node, const char *name, + const char *value); +extern void mxmlElementSetAttrf(mxml_node_t *node, const char *name, + const char *format, ...) +# ifdef __GNUC__ +__attribute__ ((__format__ (__printf__, 3, 4))) +# endif /* __GNUC__ */ +; +extern int mxmlEntityAddCallback(mxml_entity_cb_t cb); +extern const char *mxmlEntityGetName(int val); +extern int mxmlEntityGetValue(const char *name); +extern void mxmlEntityRemoveCallback(mxml_entity_cb_t cb); +extern mxml_node_t *mxmlFindElement(mxml_node_t *node, mxml_node_t *top, + const char *name, const char *attr, + const char *value, int descend); +extern mxml_node_t *mxmlFindPathNode(mxml_node_t *node, const char *path); +extern mxml_node_t *mxmlFindPath(mxml_node_t *node, const char *path); +extern const char *mxmlGetCDATA(mxml_node_t *node); +extern const void *mxmlGetCustom(mxml_node_t *node); +extern const char *mxmlGetElement(mxml_node_t *node); +extern mxml_node_t *mxmlGetFirstChild(mxml_node_t *node); +extern int mxmlGetInteger(mxml_node_t *node); +extern mxml_node_t *mxmlGetLastChild(mxml_node_t *node); +extern mxml_node_t *mxmlGetNextSibling(mxml_node_t *node); +extern const char *mxmlGetOpaque(mxml_node_t *node); +extern mxml_node_t *mxmlGetParent(mxml_node_t *node); +extern mxml_node_t *mxmlGetPrevSibling(mxml_node_t *node); +extern double mxmlGetReal(mxml_node_t *node); +extern int mxmlGetRefCount(mxml_node_t *node); +extern const char *mxmlGetText(mxml_node_t *node, int *whitespace); +extern mxml_type_t mxmlGetType(mxml_node_t *node); +extern void *mxmlGetUserData(mxml_node_t *node); +extern void mxmlIndexDelete(mxml_index_t *ind); +extern mxml_node_t *mxmlIndexEnum(mxml_index_t *ind); +extern mxml_node_t *mxmlIndexFind(mxml_index_t *ind, + const char *element, + const char *value); +extern int mxmlIndexGetCount(mxml_index_t *ind); +extern mxml_index_t *mxmlIndexNew(mxml_node_t *node, const char *element, + const char *attr); +extern mxml_node_t *mxmlIndexReset(mxml_index_t *ind); +extern mxml_node_t *mxmlLoadFd(mxml_node_t *top, int fd, + mxml_type_t (*cb)(mxml_node_t *)); +extern mxml_node_t *mxmlLoadFile(mxml_node_t *top, FILE *fp, + mxml_type_t (*cb)(mxml_node_t *)); +extern mxml_node_t *mxmlLoadString(mxml_node_t *top, const char *s, + mxml_type_t (*cb)(mxml_node_t *)); +extern mxml_node_t *mxmlNewCDATA(mxml_node_t *parent, const char *string); +extern mxml_node_t *mxmlNewCustom(mxml_node_t *parent, void *data, + mxml_custom_destroy_cb_t destroy); +extern mxml_node_t *mxmlNewElement(mxml_node_t *parent, const char *name); +extern mxml_node_t *mxmlNewInteger(mxml_node_t *parent, int integer); +extern mxml_node_t *mxmlNewOpaque(mxml_node_t *parent, const char *opaque); +extern mxml_node_t *mxmlNewReal(mxml_node_t *parent, double real); +extern mxml_node_t *mxmlNewText(mxml_node_t *parent, int whitespace, + const char *string); +extern mxml_node_t *mxmlNewTextf(mxml_node_t *parent, int whitespace, + const char *format, ...) +# ifdef __GNUC__ +__attribute__ ((__format__ (__printf__, 3, 4))) +# endif /* __GNUC__ */ +; +extern mxml_node_t *mxmlNewXML(const char *version); +extern int mxmlRelease(mxml_node_t *node); +extern void mxmlRemove(mxml_node_t *node); +extern int mxmlRetain(mxml_node_t *node); +extern char *mxmlSaveAllocString(mxml_node_t *node, + mxml_save_cb_t cb); +extern int mxmlSaveFd(mxml_node_t *node, int fd, + mxml_save_cb_t cb); +extern int mxmlSaveFile(mxml_node_t *node, FILE *fp, + mxml_save_cb_t cb); +extern int mxmlSaveString(mxml_node_t *node, char *buffer, + int bufsize, mxml_save_cb_t cb); +extern mxml_node_t *mxmlSAXLoadFd(mxml_node_t *top, int fd, + mxml_type_t (*cb)(mxml_node_t *), + mxml_sax_cb_t sax, void *sax_data); +extern mxml_node_t *mxmlSAXLoadFile(mxml_node_t *top, FILE *fp, + mxml_type_t (*cb)(mxml_node_t *), + mxml_sax_cb_t sax, void *sax_data); +extern mxml_node_t *mxmlSAXLoadString(mxml_node_t *top, const char *s, + mxml_type_t (*cb)(mxml_node_t *), + mxml_sax_cb_t sax, void *sax_data); +extern int mxmlSetCDATA(mxml_node_t *node, const char *data); +extern int mxmlSetCustom(mxml_node_t *node, void *data, + mxml_custom_destroy_cb_t destroy); +extern void mxmlSetCustomHandlers(mxml_custom_load_cb_t load, + mxml_custom_save_cb_t save); +extern int mxmlSetElement(mxml_node_t *node, const char *name); +extern void mxmlSetErrorCallback(mxml_error_cb_t cb); +extern int mxmlSetInteger(mxml_node_t *node, int integer); +extern int mxmlSetOpaque(mxml_node_t *node, const char *opaque); +extern int mxmlSetReal(mxml_node_t *node, double real); +extern int mxmlSetText(mxml_node_t *node, int whitespace, + const char *string); +extern int mxmlSetTextf(mxml_node_t *node, int whitespace, + const char *format, ...) +# ifdef __GNUC__ +__attribute__ ((__format__ (__printf__, 3, 4))) +# endif /* __GNUC__ */ +; +extern int mxmlSetUserData(mxml_node_t *node, void *data); +extern void mxmlSetWrapMargin(int column); +extern mxml_node_t *mxmlWalkNext(mxml_node_t *node, mxml_node_t *top, + int descend); +extern mxml_node_t *mxmlWalkPrev(mxml_node_t *node, mxml_node_t *top, + int descend); + + +/* + * Semi-private functions... + */ + +extern void mxml_error(const char *format, ...); +extern mxml_type_t mxml_ignore_cb(mxml_node_t *node); +extern mxml_type_t mxml_integer_cb(mxml_node_t *node); +extern mxml_type_t mxml_opaque_cb(mxml_node_t *node); +extern mxml_type_t mxml_real_cb(mxml_node_t *node); + + +/* + * C++ support... + */ + +# ifdef __cplusplus +} +# endif /* __cplusplus */ +#endif /* !_mxml_h_ */ + + +/* + * End of "$Id: mxml.h 427 2011-01-03 02:03:29Z mike $". + */ diff --git a/xml/mxml.list.in b/xml/mxml.list.in new file mode 100644 index 0000000..fbe6878 --- /dev/null +++ b/xml/mxml.list.in @@ -0,0 +1,107 @@ +# +# "$Id: mxml.list.in 399 2009-05-17 17:20:51Z mike $" +# +# EPM software list file for Mini-XML, a small XML library. +# +# Copyright 2003-2009 by Michael Sweet. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU Library General Public +# License as published by the Free Software Foundation; either +# version 2, or (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# + +# Directories... +$prefix=@prefix@ +$exec_prefix=@exec_prefix@ +$bindir=@bindir@ +$datarootdir=@datarootdir@ +$docdir=@docdir@ +$includedir=@includedir@ +$libdir=@libdir@ +$mandir=@mandir@ +$srcdir=@srcdir@ + +$PICFLAG=@PICFLAG@ + +# Product information +%product mxml +%copyright 2003-2009 by Michael Sweet +%vendor Michael Sweet +%license ${srcdir}/COPYING +%readme ${srcdir}/README +%version @VERSION@ + +%description < +Vendor: Michael Sweet + +# Use buildroot so as not to disturb the version already installed +BuildRoot: /var/tmp/%{name}-root + +%description +Mini-XML is a small XML parsing library that you can use to read +XML and XML-like data files in your application without +requiring large non-standard libraries. Mini-XML provides the +following functionality: + + - Reading of UTF-8 and UTF-16 and writing of UTF-8 encoded + XML files and strings. + - Data is stored in a linked-list tree structure, preserving + the XML data hierarchy. + - Supports arbitrary element names, attributes, and + attribute values with no preset limits, just available + memory. + - Supports integer, real, opaque ("cdata"), and text data + types in "leaf" nodes. + - Functions for creating and managing trees of data. + - "Find" and "walk" functions for easily locating and + navigating trees of data. + +Mini-XML doesn't do validation or other types of processing on +the data based upon schema files or other sources of definition +information, nor does it support character entities other than +those required by the XML specification. + +%prep +%setup + +%build +CFLAGS="$RPM_OPT_FLAGS" CXXFLAGS="$RPM_OPT_FLAGS" LDFLAGS="$RPM_OPT_FLAGS" ./configure --enable-shared --prefix=/usr + +# If we got this far, all prerequisite libraries must be here. +make + +%install +# Make sure the RPM_BUILD_ROOT directory exists. +rm -rf $RPM_BUILD_ROOT + +make BUILDROOT=$RPM_BUILD_ROOT install + +%clean +rm -rf $RPM_BUILD_ROOT + +%files +%defattr(-,root,root) + +%dir /usr/bin +/usr/bin/* +%dir /usr/include +/usr/include/mxml.h +%dir /usr/lib +/usr/lib/* +%dir /usr/lib/pkgconfig +/usr/lib/pkgconfig/mxml.pc +%dir /usr/share/doc/mxml +/usr/share/doc/mxml/* +%dir /usr/share/man/man1 +/usr/share/man/man1/* +%dir /usr/share/man/man3 +/usr/share/man/man3/* + +# +# End of "$Id: mxml.spec 399 2009-05-17 17:20:51Z mike $". +# diff --git a/xml/mxml.xml b/xml/mxml.xml new file mode 100644 index 0000000..bf6b520 --- /dev/null +++ b/xml/mxml.xml @@ -0,0 +1,1627 @@ + + + + Add a node to a tree. + +Adds the specified node to the parent. If the child argument is not +NULL, puts the new node before or after the specified child depending +on the value of the where argument. If the child argument is NULL, +puts the new node at the beginning of the child list (MXML_ADD_BEFORE) +or at the end of the child list (MXML_ADD_AFTER). The constant +MXML_ADD_TO_PARENT can be used to specify a NULL child pointer. + + mxml_node_t * + Parent node + + + int + Where to add, MXML_ADD_BEFORE or MXML_ADD_AFTER + + + mxml_node_t * + Child node for where or MXML_ADD_TO_PARENT + + + mxml_node_t * + Node to add + + + + Delete a node and all of its children. + +If the specified node has a parent, this function first removes the +node from its parent using the mxmlRemove() function. + + mxml_node_t * + Node to delete + + + + Delete an attribute. + +@since Mini-XML 2.4@ + + mxml_node_t * + Element + + + const char * + Attribute name + + + + + const char * + Attribute value or NULL + + Get an attribute. + +This function returns NULL if the node is not an element or the +named attribute does not exist. + + mxml_node_t * + Element node + + + const char * + Name of attribute + + + + Set an attribute. + +If the named attribute already exists, the value of the attribute +is replaced by the new string value. The string value is copied +into the element node. This function does nothing if the node is +not an element. + + mxml_node_t * + Element node + + + const char * + Name of attribute + + + const char * + Attribute value + + + + Set an attribute with a formatted value. + +If the named attribute already exists, the value of the attribute +is replaced by the new formatted string. The formatted string value is +copied into the element node. This function does nothing if the node +is not an element. + +@since Mini-XML 2.3@ + + mxml_node_t * + Element node + + + const char * + Name of attribute + + + const char * + Printf-style attribute value + + + Additional arguments as needed + + + + + int + 0 on success, -1 on failure + + Add a callback to convert entities to Unicode. + + mxml_entity_cb_t + Callback function to add + + + + + const char * + Entity name or NULL + + Get the name that corresponds to the character value. + +If val does not need to be represented by a named entity, NULL is returned. + + int + Character value + + + + + int + Character value or -1 on error + + Get the character corresponding to a named entity. + +The entity name can also be a numeric constant. -1 is returned if the +name is not known. + + const char * + Entity name + + + + Remove a callback. + + mxml_entity_cb_t + Callback function to remove + + + + + mxml_node_t * + Element node or NULL + + Find the named element. + +The search is constrained by the name, attribute name, and value; any +NULL names or values are treated as wildcards, so different kinds of +searches can be implemented by looking for all elements of a given name +or all elements with a specific attribute. The descend argument determines +whether the search descends into child nodes; normally you will use +MXML_DESCEND_FIRST for the initial search and MXML_NO_DESCEND to find +additional direct descendents of the node. The top node argument +constrains the search to a particular node's children. + + mxml_node_t * + Current node + + + mxml_node_t * + Top node + + + const char * + Element name or NULL for any + + + const char * + Attribute name, or NULL for none + + + const char * + Attribute value, or NULL for any + + + int + Descend into tree - MXML_DESCEND, MXML_NO_DESCEND, or MXML_DESCEND_FIRST + + + + + mxml_node_t * + Found node or NULL + + Find a node with the given path. + +The "path" is a slash-separated list of element names. The name "*" is +considered a wildcard for one or more levels of elements. For example, +"foo/one/two", "bar/two/one", "*/one", and so forth. + +The first child node of the found node is returned if the given node has +children and the first child is a value node. + +@since Mini-XML 2.7@ + + mxml_node_t * + Top node + + + const char * + Path to element + + + + + const char * + CDATA value or NULL + + Get the value for a CDATA node. + +@code NULL@ is returned if the node is not a CDATA element. + +@since Mini-XML 2.7@ + + mxml_node_t * + Node to get + + + + + const void * + Custom value or NULL + + Get the value for a custom node. + +@code NULL@ is returned if the node (or its first child) is not a custom +value node. + +@since Mini-XML 2.7@ + + mxml_node_t * + Node to get + + + + + const char * + Element name or NULL + + Get the name for an element node. + +@code NULL@ is returned if the node is not an element node. + +@since Mini-XML 2.7@ + + mxml_node_t * + Node to get + + + + + mxml_node_t * + First child or NULL + + Get the first child of an element node. + +@code NULL@ is returned if the node is not an element node or if the node +has no children. + +@since Mini-XML 2.7@ + + mxml_node_t * + Node to get + + + + + int + Integer value or 0 + + Get the integer value from the specified node or its +first child. + +0 is returned if the node (or its first child) is not an integer value node. + +@since Mini-XML 2.7@ + + mxml_node_t * + Node to get + + + + + mxml_node_t * + Last child or NULL + + Get the last child of an element node. + +@code NULL@ is returned if the node is not an element node or if the node +has no children. + +@since Mini-XML 2.7@ + + mxml_node_t * + Node to get + + + + + mxml_node_t * + Get the next node for the current parent. + +@code NULL@ is returned if this is the last child for the current parent. + +@since Mini-XML 2.7@ + + Return the node type... + + mxml_node_t * + Node to get + + + + + const char * + Opaque string or NULL + + Get an opaque string value for a node or its first child. + +@code NULL@ is returned if the node (or its first child) is not an opaque +value node. + +@since Mini-XML 2.7@ + + mxml_node_t * + Node to get + + + + + mxml_node_t * + Parent node or NULL + + Get the parent node. + +@code NULL@ is returned for a root node. + +@since Mini-XML 2.7@ + + mxml_node_t * + Node to get + + + + + mxml_node_t * + Previous node or NULL + + Get the previous node for the current parent. + +@code NULL@ is returned if this is the first child for the current parent. + +@since Mini-XML 2.7@ + + mxml_node_t * + Node to get + + + + + double + Real value or 0.0 + + Get the real value for a node or its first child. + +0.0 is returned if the node (or its first child) is not a real value node. + +@since Mini-XML 2.7@ + + mxml_node_t * + Node to get + + + + + int + Reference count + + Get the current reference (use) count for a node. + +The initial reference count of new nodes is 1. Use the @link mxmlRetain@ +and @link mxmlRelease@ functions to increment and decrement a node's +reference count. + +@since Mini-XML 2.7@. + + mxml_node_t * + Node + + + + + const char * + Text string or NULL + + Get the text value for a node or its first child. + +@code NULL@ is returned if the node (or its first child) is not a text node. +The "whitespace" argument can be NULL. + +@since Mini-XML 2.7@ + + mxml_node_t * + Node to get + + + int * + 1 if string is preceded by whitespace, 0 otherwise + + + + + mxml_type_t + Type of node + + Get the node type. + +@code MXML_IGNORE@ is returned if "node" is @code NULL@. + +@since Mini-XML 2.7@ + + mxml_node_t * + Node to get + + + + + void * + User data pointer + + Get the user data pointer for a node. + +@since Mini-XML 2.7@ + + mxml_node_t * + Node to get + + + + Delete an index. + + mxml_index_t * + Index to delete + + + + + mxml_node_t * + Next node or NULL if there is none + + Return the next node in the index. + +Nodes are returned in the sorted order of the index. + + mxml_index_t * + Index to enumerate + + + + + mxml_node_t * + Node or NULL if none found + + Find the next matching node. + +You should call mxmlIndexReset() prior to using this function for +the first time with a particular set of "element" and "value" +strings. Passing NULL for both "element" and "value" is equivalent +to calling mxmlIndexEnum(). + + mxml_index_t * + Index to search + + + const char * + Element name to find, if any + + + const char * + Attribute value, if any + + + + + int + Number of nodes in index + + Get the number of nodes in an index. + +@since Mini-XML 2.7@ + + mxml_index_t * + Index of nodes + + + + + mxml_index_t * + New index + + Create a new index. + +The index will contain all nodes that contain the named element and/or +attribute. If both "element" and "attr" are NULL, then the index will +contain a sorted list of the elements in the node tree. Nodes are +sorted by element name and optionally by attribute value if the "attr" +argument is not NULL. + + mxml_node_t * + XML node tree + + + const char * + Element to index or NULL for all + + + const char * + Attribute to index or NULL for none + + + + + mxml_node_t * + First node or NULL if there is none + + Reset the enumeration/find pointer in the index and +return the first node in the index. + +This function should be called prior to using mxmlIndexEnum() or +mxmlIndexFind() for the first time. + + mxml_index_t * + Index to reset + + + + + mxml_node_t * + First node or NULL if the file could not be read. + + Load a file descriptor into an XML node tree. + +The nodes in the specified file are added to the specified top node. +If no top node is provided, the XML file MUST be well-formed with a +single parent node like <?xml> for the entire file. The callback +function returns the value type that should be used for child nodes. +If MXML_NO_CALLBACK is specified then all child nodes will be either +MXML_ELEMENT or MXML_TEXT nodes. + +The constants MXML_INTEGER_CALLBACK, MXML_OPAQUE_CALLBACK, +MXML_REAL_CALLBACK, and MXML_TEXT_CALLBACK are defined for loading +child nodes of the specified type. + + mxml_node_t * + Top node + + + int + File descriptor to read from + + + mxml_load_cb_t + Callback function or MXML_NO_CALLBACK + + + + + mxml_node_t * + First node or NULL if the file could not be read. + + Load a file into an XML node tree. + +The nodes in the specified file are added to the specified top node. +If no top node is provided, the XML file MUST be well-formed with a +single parent node like <?xml> for the entire file. The callback +function returns the value type that should be used for child nodes. +If MXML_NO_CALLBACK is specified then all child nodes will be either +MXML_ELEMENT or MXML_TEXT nodes. + +The constants MXML_INTEGER_CALLBACK, MXML_OPAQUE_CALLBACK, +MXML_REAL_CALLBACK, and MXML_TEXT_CALLBACK are defined for loading +child nodes of the specified type. + + mxml_node_t * + Top node + + + FILE * + File to read from + + + mxml_load_cb_t + Callback function or MXML_NO_CALLBACK + + + + + mxml_node_t * + First node or NULL if the string has errors. + + Load a string into an XML node tree. + +The nodes in the specified string are added to the specified top node. +If no top node is provided, the XML string MUST be well-formed with a +single parent node like <?xml> for the entire string. The callback +function returns the value type that should be used for child nodes. +If MXML_NO_CALLBACK is specified then all child nodes will be either +MXML_ELEMENT or MXML_TEXT nodes. + +The constants MXML_INTEGER_CALLBACK, MXML_OPAQUE_CALLBACK, +MXML_REAL_CALLBACK, and MXML_TEXT_CALLBACK are defined for loading +child nodes of the specified type. + + mxml_node_t * + Top node + + + const char * + String to load + + + mxml_load_cb_t + Callback function or MXML_NO_CALLBACK + + + + + mxml_node_t * + New node + + Create a new CDATA node. + +The new CDATA node is added to the end of the specified parent's child +list. The constant MXML_NO_PARENT can be used to specify that the new +CDATA node has no parent. The data string must be nul-terminated and +is copied into the new node. CDATA nodes use the MXML_ELEMENT type. + +@since Mini-XML 2.3@ + + mxml_node_t * + Parent node or MXML_NO_PARENT + + + const char * + Data string + + + + + mxml_node_t * + New node + + Create a new custom data node. + +The new custom node is added to the end of the specified parent's child +list. The constant MXML_NO_PARENT can be used to specify that the new +element node has no parent. NULL can be passed when the data in the +node is not dynamically allocated or is separately managed. + +@since Mini-XML 2.1@ + + mxml_node_t * + Parent node or MXML_NO_PARENT + + + void * + Pointer to data + + + mxml_custom_destroy_cb_t + Function to destroy data + + + + + mxml_node_t * + New node + + Create a new element node. + +The new element node is added to the end of the specified parent's child +list. The constant MXML_NO_PARENT can be used to specify that the new +element node has no parent. + + mxml_node_t * + Parent node or MXML_NO_PARENT + + + const char * + Name of element + + + + + mxml_node_t * + New node + + Create a new integer node. + +The new integer node is added to the end of the specified parent's child +list. The constant MXML_NO_PARENT can be used to specify that the new +integer node has no parent. + + mxml_node_t * + Parent node or MXML_NO_PARENT + + + int + Integer value + + + + + mxml_node_t * + New node + + Create a new opaque string. + +The new opaque node is added to the end of the specified parent's child +list. The constant MXML_NO_PARENT can be used to specify that the new +opaque node has no parent. The opaque string must be nul-terminated and +is copied into the new node. + + mxml_node_t * + Parent node or MXML_NO_PARENT + + + const char * + Opaque string + + + + + mxml_node_t * + New node + + Create a new real number node. + +The new real number node is added to the end of the specified parent's +child list. The constant MXML_NO_PARENT can be used to specify that +the new real number node has no parent. + + mxml_node_t * + Parent node or MXML_NO_PARENT + + + double + Real number value + + + + + mxml_node_t * + New node + + Create a new text fragment node. + +The new text node is added to the end of the specified parent's child +list. The constant MXML_NO_PARENT can be used to specify that the new +text node has no parent. The whitespace parameter is used to specify +whether leading whitespace is present before the node. The text +string must be nul-terminated and is copied into the new node. + + mxml_node_t * + Parent node or MXML_NO_PARENT + + + int + 1 = leading whitespace, 0 = no whitespace + + + const char * + String + + + + + mxml_node_t * + New node + + Create a new formatted text fragment node. + +The new text node is added to the end of the specified parent's child +list. The constant MXML_NO_PARENT can be used to specify that the new +text node has no parent. The whitespace parameter is used to specify +whether leading whitespace is present before the node. The format +string must be nul-terminated and is formatted into the new node. + + mxml_node_t * + Parent node or MXML_NO_PARENT + + + int + 1 = leading whitespace, 0 = no whitespace + + + const char * + Printf-style frmat string + + + Additional args as needed + + + + + mxml_node_t * + New ?xml node + + Create a new XML document tree. + +The "version" argument specifies the version number to put in the +?xml element node. If NULL, version 1.0 is assumed. + +@since Mini-XML 2.3@ + + const char * + Version number to use + + + + + int + New reference count + + Release a node. + +When the reference count reaches zero, the node (and any children) +is deleted via mxmlDelete(). + +@since Mini-XML 2.3@ + + mxml_node_t * + Node + + + + Remove a node from its parent. + +Does not free memory used by the node - use mxmlDelete() for that. +This function does nothing if the node has no parent. + + mxml_node_t * + Node to remove + + + + + int + New reference count + + Retain a node. + +@since Mini-XML 2.3@ + + mxml_node_t * + Node + + + + + mxml_node_t * + First node or NULL if the file could not be read. + + Load a file descriptor into an XML node tree +using a SAX callback. + +The nodes in the specified file are added to the specified top node. +If no top node is provided, the XML file MUST be well-formed with a +single parent node like <?xml> for the entire file. The callback +function returns the value type that should be used for child nodes. +If MXML_NO_CALLBACK is specified then all child nodes will be either +MXML_ELEMENT or MXML_TEXT nodes. + +The constants MXML_INTEGER_CALLBACK, MXML_OPAQUE_CALLBACK, +MXML_REAL_CALLBACK, and MXML_TEXT_CALLBACK are defined for loading +child nodes of the specified type. + +The SAX callback must call mxmlRetain() for any nodes that need to +be kept for later use. Otherwise, nodes are deleted when the parent +node is closed or after each data, comment, CDATA, or directive node. + +@since Mini-XML 2.3@ + + mxml_node_t * + Top node + + + int + File descriptor to read from + + + mxml_load_cb_t + Callback function or MXML_NO_CALLBACK + + + mxml_sax_cb_t + SAX callback or MXML_NO_CALLBACK + + + void * + SAX user data + + + + + mxml_node_t * + First node or NULL if the file could not be read. + + Load a file into an XML node tree +using a SAX callback. + +The nodes in the specified file are added to the specified top node. +If no top node is provided, the XML file MUST be well-formed with a +single parent node like <?xml> for the entire file. The callback +function returns the value type that should be used for child nodes. +If MXML_NO_CALLBACK is specified then all child nodes will be either +MXML_ELEMENT or MXML_TEXT nodes. + +The constants MXML_INTEGER_CALLBACK, MXML_OPAQUE_CALLBACK, +MXML_REAL_CALLBACK, and MXML_TEXT_CALLBACK are defined for loading +child nodes of the specified type. + +The SAX callback must call mxmlRetain() for any nodes that need to +be kept for later use. Otherwise, nodes are deleted when the parent +node is closed or after each data, comment, CDATA, or directive node. + +@since Mini-XML 2.3@ + + mxml_node_t * + Top node + + + FILE * + File to read from + + + mxml_load_cb_t + Callback function or MXML_NO_CALLBACK + + + mxml_sax_cb_t + SAX callback or MXML_NO_CALLBACK + + + void * + SAX user data + + + + + mxml_node_t * + First node or NULL if the string has errors. + + Load a string into an XML node tree +using a SAX callback. + +The nodes in the specified string are added to the specified top node. +If no top node is provided, the XML string MUST be well-formed with a +single parent node like <?xml> for the entire string. The callback +function returns the value type that should be used for child nodes. +If MXML_NO_CALLBACK is specified then all child nodes will be either +MXML_ELEMENT or MXML_TEXT nodes. + +The constants MXML_INTEGER_CALLBACK, MXML_OPAQUE_CALLBACK, +MXML_REAL_CALLBACK, and MXML_TEXT_CALLBACK are defined for loading +child nodes of the specified type. + +The SAX callback must call mxmlRetain() for any nodes that need to +be kept for later use. Otherwise, nodes are deleted when the parent +node is closed or after each data, comment, CDATA, or directive node. + +@since Mini-XML 2.3@ + + mxml_node_t * + Top node + + + const char * + String to load + + + mxml_load_cb_t + Callback function or MXML_NO_CALLBACK + + + mxml_sax_cb_t + SAX callback or MXML_NO_CALLBACK + + + void * + SAX user data + + + + + char * + Allocated string or NULL + + Save an XML tree to an allocated string. + +This function returns a pointer to a string containing the textual +representation of the XML node tree. The string should be freed +using the free() function when you are done with it. NULL is returned +if the node would produce an empty string or if the string cannot be +allocated. + +The callback argument specifies a function that returns a whitespace +string or NULL before and after each element. If MXML_NO_CALLBACK +is specified, whitespace will only be added before MXML_TEXT nodes +with leading whitespace and before attribute names inside opening +element tags. + + mxml_node_t * + Node to write + + + mxml_save_cb_t + Whitespace callback or MXML_NO_CALLBACK + + + + + int + 0 on success, -1 on error. + + Save an XML tree to a file descriptor. + +The callback argument specifies a function that returns a whitespace +string or NULL before and after each element. If MXML_NO_CALLBACK +is specified, whitespace will only be added before MXML_TEXT nodes +with leading whitespace and before attribute names inside opening +element tags. + + mxml_node_t * + Node to write + + + int + File descriptor to write to + + + mxml_save_cb_t + Whitespace callback or MXML_NO_CALLBACK + + + + + int + 0 on success, -1 on error. + + Save an XML tree to a file. + +The callback argument specifies a function that returns a whitespace +string or NULL before and after each element. If MXML_NO_CALLBACK +is specified, whitespace will only be added before MXML_TEXT nodes +with leading whitespace and before attribute names inside opening +element tags. + + mxml_node_t * + Node to write + + + FILE * + File to write to + + + mxml_save_cb_t + Whitespace callback or MXML_NO_CALLBACK + + + + + int + Size of string + + Save an XML node tree to a string. + +This function returns the total number of bytes that would be +required for the string but only copies (bufsize - 1) characters +into the specified buffer. + +The callback argument specifies a function that returns a whitespace +string or NULL before and after each element. If MXML_NO_CALLBACK +is specified, whitespace will only be added before MXML_TEXT nodes +with leading whitespace and before attribute names inside opening +element tags. + + mxml_node_t * + Node to write + + + char * + String buffer + + + int + Size of string buffer + + + mxml_save_cb_t + Whitespace callback or MXML_NO_CALLBACK + + + + + int + 0 on success, -1 on failure + + Set the element name of a CDATA node. + +The node is not changed if it (or its first child) is not a CDATA element node. + +@since Mini-XML 2.3@ + + mxml_node_t * + Node to set + + + const char * + New data string + + + + + int + 0 on success, -1 on failure + + Set the data and destructor of a custom data node. + +The node is not changed if it (or its first child) is not a custom node. + +@since Mini-XML 2.1@ + + mxml_node_t * + Node to set + + + void * + New data pointer + + + mxml_custom_destroy_cb_t + New destructor function + + + + Set the handling functions for custom data. + +The load function accepts a node pointer and a data string and must +return 0 on success and non-zero on error. + +The save function accepts a node pointer and must return a malloc'd +string on success and NULL on error. + + mxml_custom_load_cb_t + Load function + + + mxml_custom_save_cb_t + Save function + + + + + int + 0 on success, -1 on failure + + Set the name of an element node. + +The node is not changed if it is not an element node. + + mxml_node_t * + Node to set + + + const char * + New name string + + + + Set the error message callback. + + mxml_error_cb_t + Error callback function + + + + + int + 0 on success, -1 on failure + + Set the value of an integer node. + +The node is not changed if it (or its first child) is not an integer node. + + mxml_node_t * + Node to set + + + int + Integer value + + + + + int + 0 on success, -1 on failure + + Set the value of an opaque node. + +The node is not changed if it (or its first child) is not an opaque node. + + mxml_node_t * + Node to set + + + const char * + Opaque string + + + + + int + 0 on success, -1 on failure + + Set the value of a real number node. + +The node is not changed if it (or its first child) is not a real number node. + + mxml_node_t * + Node to set + + + double + Real number value + + + + + int + 0 on success, -1 on failure + + Set the value of a text node. + +The node is not changed if it (or its first child) is not a text node. + + mxml_node_t * + Node to set + + + int + 1 = leading whitespace, 0 = no whitespace + + + const char * + String + + + + + int + 0 on success, -1 on failure + + Set the value of a text node to a formatted string. + +The node is not changed if it (or its first child) is not a text node. + + mxml_node_t * + Node to set + + + int + 1 = leading whitespace, 0 = no whitespace + + + const char * + Printf-style format string + + + Additional arguments as needed + + + + + int + 0 on success, -1 on failure + + Set the user data pointer for a node. + +@since Mini-XML 2.7@ + + mxml_node_t * + Node to set + + + void * + User data pointer + + + + Set the wrap margin when saving XML data. + +Wrapping is disabled when "column" is 0. + +@since Mini-XML 2.3@ + + int + Column for wrapping, 0 to disable wrapping + + + + + mxml_node_t * + Next node or NULL + + Walk to the next logical node in the tree. + +The descend argument controls whether the first child is considered +to be the next node. The top node argument constrains the walk to +the node's children. + + mxml_node_t * + Current node + + + mxml_node_t * + Top node + + + int + Descend into tree - MXML_DESCEND, MXML_NO_DESCEND, or MXML_DESCEND_FIRST + + + + + mxml_node_t * + Previous node or NULL + + Walk to the previous logical node in the tree. + +The descend argument controls whether the previous node's last child +is considered to be the previous node. The top node argument constrains +the walk to the node's children. + + mxml_node_t * + Current node + + + mxml_node_t * + Top node + + + int + Descend into tree - MXML_DESCEND, MXML_NO_DESCEND, or MXML_DESCEND_FIRST + + + + An XML element attribute value. @private@ + + char * + Attribute name + + + char * + Attribute value + + + + struct mxml_attr_s + An XML element attribute value. @private@ + + + void(*)(void *) + Custom data destructor + + + int(*)(mxml_node_t *, const char *) + Custom data load callback function + + + An XML custom value. @private@ + + void * + Pointer to (allocated) custom data + + + mxml_custom_destroy_cb_t + Pointer to destructor function + + + + char *(*)(mxml_node_t *) + Custom data save callback function + + + struct mxml_custom_s + An XML custom value. @private@ + + + An XML element value. @private@ + + mxml_attr_t * + Attributes + + + char * + Name of element + + + int + Number of attributes + + + + struct mxml_element_s + An XML element value. @private@ + + + int(*)(const char *) + Entity callback function + + + void(*)(const char *) + Error callback function + + + An XML node index. @private@ + + int + Allocated nodes in index + + + char * + Attribute used for indexing or NULL + + + int + Current node + + + mxml_node_t ** + Node array + + + int + Number of nodes in index + + + + struct mxml_index_s + An XML node index. + + + mxml_type_t(*)(mxml_node_t *) + Load callback function + + + An XML node. @private@ + + struct mxml_node_s * + First child node + + + struct mxml_node_s * + Last child node + + + struct mxml_node_s * + Next node under same parent + + + struct mxml_node_s * + Parent node + + + struct mxml_node_s * + Previous node under same parent + + + int + Use count + + + mxml_type_t + Node type + + + void * + User data + + + mxml_value_t + Node value + + + + struct mxml_node_s + An XML node. + + + const char *(*)(mxml_node_t *, int) + Save callback function + + + void(*)(mxml_node_t *, mxml_sax_event_t, void *) + SAX callback function + + + SAX event type. + + CDATA node + + + Comment node + + + Data node + + + Processing directive node + + + Element closed + + + Element opened + + + + enum mxml_sax_event_e + SAX event type. + + + An XML text value. @private@ + + char * + Fragment string + + + int + Leading whitespace? + + + + struct mxml_text_s + An XML text value. @private@ + + + The XML node type. + + Custom data @since Mini-XML 2.1@ + + + XML element with attributes + + + Ignore/throw away node @since Mini-XML 2.3@ + + + Integer value + + + Opaque string + + + Real value + + + Text fragment + + + + The XML node type. + enum mxml_type_e + + + union mxml_value_u + An XML node value. @private@ + + + An XML node value. @private@ + + mxml_custom_t + Custom data @since Mini-XML 2.1@ + + + mxml_element_t + Element + + + int + Integer number + + + char * + Opaque string + + + double + Real number + + + mxml_text_t + Text fragment + + + diff --git a/xml/mxmldoc.c b/xml/mxmldoc.c new file mode 100644 index 0000000..28316ee --- /dev/null +++ b/xml/mxmldoc.c @@ -0,0 +1,5809 @@ +/*#define DEBUG 1*/ +/* + * "$Id: mxmldoc.c 440 2011-08-11 18:51:26Z mike $" + * + * Documentation generator using Mini-XML, a small XML-like file parsing + * library. + * + * Copyright 2003-2011 by Michael R Sweet. + * + * These coded instructions, statements, and computer programs are the + * property of Michael R Sweet and are protected by Federal copyright + * law. Distribution and use rights are outlined in the file "COPYING" + * which should have been included with this file. If this file is + * missing or damaged, see the license at: + * + * http://www.minixml.org/ + * + * Contents: + * + * main() - Main entry for test program. + * add_variable() - Add a variable or argument. + * find_public() - Find a public function, type, etc. + * get_comment_info() - Get info from comment. + * get_text() - Get the text for a node. + * load_cb() - Set the type of child nodes. + * new_documentation() - Create a new documentation tree. + * remove_directory() - Remove a directory. + * safe_strcpy() - Copy a string allowing for overlapping strings. + * scan_file() - Scan a source file. + * sort_node() - Insert a node sorted into a tree. + * update_comment() - Update a comment node. + * usage() - Show program usage... + * write_description() - Write the description text. + * write_element() - Write an element's text nodes. + * write_file() - Copy a file to the output. + * write_function() - Write documentation for a function. + * write_html() - Write HTML documentation. + * write_html_head() - Write the standard HTML header. + * write_man() - Write manpage documentation. + * write_scu() - Write a structure, class, or union. + * write_string() - Write a string, quoting HTML special chars as needed. + * write_toc() - Write a table-of-contents. + * write_tokens() - Write nodes for all APIs. + * ws_cb() - Whitespace callback for saving. + */ + +/* + * Include necessary headers... + */ + +#include "config.h" +#include "mxml.h" +#include +#include +#ifndef WIN32 +# include +# include +#endif /* !WIN32 */ +#ifdef __APPLE__ +# include +# include +extern char **environ; +#endif /* __APPLE__ */ + + +/* + * This program scans source and header files and produces public API + * documentation for code that conforms to the CUPS Configuration + * Management Plan (CMP) coding standards. Please see the following web + * page for details: + * + * http://www.cups.org/cmp.html + * + * Using Mini-XML, this program creates and maintains an XML representation + * of the public API code documentation which can then be converted to HTML + * as desired. The following is a poor-man's schema: + * + * + * + * + * [optional...] + * + * descriptive text + * + * + * + * descriptive text + * ... + * + * + * + * descriptive text + * type string + * + * + * + * descriptive text + * + * descriptive text + * type string + * + * + * descriptive text + * type string + * + * function names separated by spaces + * + * + * + * descriptive text + * type string + * + * + * + * descriptive text + * ... + * ... + * + * + * + * descriptive text + * ... + * + * + * + * descriptive text + * ... + * ... + * ... + * ... + * ... + * + * + * + */ + + +/* + * Basic states for file parser... + */ + +#define STATE_NONE 0 /* No state - whitespace, etc. */ +#define STATE_PREPROCESSOR 1 /* Preprocessor directive */ +#define STATE_C_COMMENT 2 /* Inside a C comment */ +#define STATE_CXX_COMMENT 3 /* Inside a C++ comment */ +#define STATE_STRING 4 /* Inside a string constant */ +#define STATE_CHARACTER 5 /* Inside a character constant */ +#define STATE_IDENTIFIER 6 /* Inside a keyword/identifier */ + + +/* + * Output modes... + */ + +#define OUTPUT_NONE 0 /* No output */ +#define OUTPUT_HTML 1 /* Output HTML */ +#define OUTPUT_XML 2 /* Output XML */ +#define OUTPUT_MAN 3 /* Output nroff/man */ +#define OUTPUT_TOKENS 4 /* Output docset Tokens.xml file */ + + +/* + * Local functions... + */ + +static mxml_node_t *add_variable(mxml_node_t *parent, const char *name, + mxml_node_t *type); +static mxml_node_t *find_public(mxml_node_t *node, mxml_node_t *top, + const char *name); +static char *get_comment_info(mxml_node_t *description); +static char *get_text(mxml_node_t *node, char *buffer, int buflen); +static mxml_type_t load_cb(mxml_node_t *node); +static mxml_node_t *new_documentation(mxml_node_t **mxmldoc); +static int remove_directory(const char *path); +static void safe_strcpy(char *dst, const char *src); +static int scan_file(const char *filename, FILE *fp, + mxml_node_t *doc); +static void sort_node(mxml_node_t *tree, mxml_node_t *func); +static void update_comment(mxml_node_t *parent, + mxml_node_t *comment); +static void usage(const char *option); +static void write_description(FILE *out, mxml_node_t *description, + const char *element, int summary); +static void write_element(FILE *out, mxml_node_t *doc, + mxml_node_t *element, int mode); +static void write_file(FILE *out, const char *file); +static void write_function(FILE *out, mxml_node_t *doc, + mxml_node_t *function, int level); +static void write_html(const char *section, const char *title, + const char *footerfile, + const char *headerfile, + const char *introfile, const char *cssfile, + const char *framefile, + const char *docset, const char *docversion, + const char *feedname, const char *feedurl, + mxml_node_t *doc); +static void write_html_head(FILE *out, const char *section, + const char *title, const char *cssfile); +static void write_man(const char *man_name, const char *section, + const char *title, const char *headerfile, + const char *footerfile, const char *introfile, + mxml_node_t *doc); +static void write_scu(FILE *out, mxml_node_t *doc, + mxml_node_t *scut); +static void write_string(FILE *out, const char *s, int mode); +static void write_toc(FILE *out, mxml_node_t *doc, + const char *introfile, const char *target, + int xml); +static void write_tokens(FILE *out, mxml_node_t *doc, + const char *path); +static const char *ws_cb(mxml_node_t *node, int where); + + +/* + * 'main()' - Main entry for test program. + */ + +int /* O - Exit status */ +main(int argc, /* I - Number of command-line args */ + char *argv[]) /* I - Command-line args */ +{ + int i; /* Looping var */ + int len; /* Length of argument */ + FILE *fp; /* File to read */ + mxml_node_t *doc; /* XML documentation tree */ + mxml_node_t *mxmldoc; /* mxmldoc node */ + const char *cssfile, /* CSS stylesheet file */ + *docset, /* Documentation set directory */ + *docversion, /* Documentation set version */ + *feedname, /* Feed name for documentation set */ + *feedurl, /* Feed URL for documentation set */ + *footerfile, /* Footer file */ + *framefile, /* Framed HTML basename */ + *headerfile, /* Header file */ + *introfile, /* Introduction file */ + *name, /* Name of manpage */ + *path, /* Path to help file for tokens */ + *section, /* Section/keywords of documentation */ + *title, /* Title of documentation */ + *xmlfile; /* XML file */ + int mode, /* Output mode */ + update; /* Updated XML file */ + + + /* + * Check arguments... + */ + + cssfile = NULL; + doc = NULL; + docset = NULL; + docversion = NULL; + feedname = NULL; + feedurl = NULL; + footerfile = NULL; + framefile = NULL; + headerfile = NULL; + introfile = NULL; + mode = OUTPUT_HTML; + mxmldoc = NULL; + name = NULL; + path = NULL; + section = NULL; + title = NULL; + update = 0; + xmlfile = NULL; + + for (i = 1; i < argc; i ++) + if (!strcmp(argv[i], "--help")) + { + /* + * Show help... + */ + + usage(NULL); + } + else if (!strcmp(argv[i], "--version")) + { + /* + * Show version... + */ + + puts(MXML_VERSION + 10); + return (0); + } + else if (!strcmp(argv[i], "--css") && !cssfile) + { + /* + * Set CSS stylesheet file... + */ + + i ++; + if (i < argc) + cssfile = argv[i]; + else + usage(NULL); + } + else if (!strcmp(argv[i], "--docset") && !docset) + { + /* + * Set documentation set directory... + */ + + i ++; + if (i < argc) + docset = argv[i]; + else + usage(NULL); + } + else if (!strcmp(argv[i], "--docversion") && !docversion) + { + /* + * Set documentation set directory... + */ + + i ++; + if (i < argc) + docversion = argv[i]; + else + usage(NULL); + } + else if (!strcmp(argv[i], "--footer") && !footerfile) + { + /* + * Set footer file... + */ + + i ++; + if (i < argc) + footerfile = argv[i]; + else + usage(NULL); + } + else if (!strcmp(argv[i], "--feedname") && !feedname) + { + /* + * Set documentation set feed name... + */ + + i ++; + if (i < argc) + feedname = argv[i]; + else + usage(NULL); + } + else if (!strcmp(argv[i], "--feedurl") && !feedurl) + { + /* + * Set documentation set feed name... + */ + + i ++; + if (i < argc) + feedurl = argv[i]; + else + usage(NULL); + } + else if (!strcmp(argv[i], "--framed") && !framefile) + { + /* + * Set base filename for framed HTML output... + */ + + i ++; + if (i < argc) + framefile = argv[i]; + else + usage(NULL); + } + else if (!strcmp(argv[i], "--header") && !headerfile) + { + /* + * Set header file... + */ + + i ++; + if (i < argc) + headerfile = argv[i]; + else + usage(NULL); + } + else if (!strcmp(argv[i], "--intro") && !introfile) + { + /* + * Set intro file... + */ + + i ++; + if (i < argc) + introfile = argv[i]; + else + usage(NULL); + } + else if (!strcmp(argv[i], "--man") && !name) + { + /* + * Output manpage... + */ + + i ++; + if (i < argc) + { + mode = OUTPUT_MAN; + name = argv[i]; + } + else + usage(NULL); + } + else if (!strcmp(argv[i], "--no-output")) + mode = OUTPUT_NONE; + else if (!strcmp(argv[i], "--section") && !section) + { + /* + * Set section/keywords... + */ + + i ++; + if (i < argc) + section = argv[i]; + else + usage(NULL); + } + else if (!strcmp(argv[i], "--title") && !title) + { + /* + * Set title... + */ + + i ++; + if (i < argc) + title = argv[i]; + else + usage(NULL); + } + else if (!strcmp(argv[i], "--tokens")) + { + /* + * Output Tokens.xml file... + */ + + mode = OUTPUT_TOKENS; + + i ++; + if (i < argc) + path = argv[i]; + else + usage(NULL); + } + else if (argv[i][0] == '-') + { + /* + * Unknown/bad option... + */ + + usage(argv[i]); + } + else + { + /* + * Process XML or source file... + */ + + len = (int)strlen(argv[i]); + if (len > 4 && !strcmp(argv[i] + len - 4, ".xml")) + { + /* + * Set XML file... + */ + + if (xmlfile) + usage(NULL); + + xmlfile = argv[i]; + + if (!doc) + { + if ((fp = fopen(argv[i], "r")) != NULL) + { + /* + * Read the existing XML file... + */ + + doc = mxmlLoadFile(NULL, fp, load_cb); + + fclose(fp); + + if (!doc) + { + mxmldoc = NULL; + + fprintf(stderr, + "mxmldoc: Unable to read the XML documentation file " + "\"%s\"!\n", argv[i]); + } + else if ((mxmldoc = mxmlFindElement(doc, doc, "mxmldoc", NULL, + NULL, MXML_DESCEND)) == NULL) + { + fprintf(stderr, + "mxmldoc: XML documentation file \"%s\" is missing " + " node!!\n", argv[i]); + + mxmlDelete(doc); + doc = NULL; + } + } + else + { + doc = NULL; + mxmldoc = NULL; + } + + if (!doc) + doc = new_documentation(&mxmldoc); + } + } + else + { + /* + * Load source file... + */ + + update = 1; + + if (!doc) + doc = new_documentation(&mxmldoc); + + if ((fp = fopen(argv[i], "r")) == NULL) + { + fprintf(stderr, "mxmldoc: Unable to open source file \"%s\": %s\n", + argv[i], strerror(errno)); + mxmlDelete(doc); + return (1); + } + else if (scan_file(argv[i], fp, mxmldoc)) + { + fclose(fp); + mxmlDelete(doc); + return (1); + } + else + fclose(fp); + } + } + + if (update && xmlfile) + { + /* + * Save the updated XML documentation file... + */ + + if ((fp = fopen(xmlfile, "w")) != NULL) + { + /* + * Write over the existing XML file... + */ + + mxmlSetWrapMargin(0); + + if (mxmlSaveFile(doc, fp, ws_cb)) + { + fprintf(stderr, + "mxmldoc: Unable to write the XML documentation file \"%s\": " + "%s!\n", xmlfile, strerror(errno)); + fclose(fp); + mxmlDelete(doc); + return (1); + } + + fclose(fp); + } + else + { + fprintf(stderr, + "mxmldoc: Unable to create the XML documentation file \"%s\": " + "%s!\n", xmlfile, strerror(errno)); + mxmlDelete(doc); + return (1); + } + } + + switch (mode) + { + case OUTPUT_HTML : + /* + * Write HTML documentation... + */ + + write_html(section, title ? title : "Documentation", footerfile, + headerfile, introfile, cssfile, framefile, docset, + docversion, feedname, feedurl, mxmldoc); + break; + + case OUTPUT_MAN : + /* + * Write manpage documentation... + */ + + write_man(name, section, title, footerfile, headerfile, introfile, + mxmldoc); + break; + + case OUTPUT_TOKENS : + fputs("\n" + "\n", stdout); + + write_tokens(stdout, mxmldoc, path); + + fputs("\n", stdout); + break; + } + + /* + * Delete the tree and return... + */ + + mxmlDelete(doc); + + return (0); +} + + +/* + * 'add_variable()' - Add a variable or argument. + */ + +static mxml_node_t * /* O - New variable/argument */ +add_variable(mxml_node_t *parent, /* I - Parent node */ + const char *name, /* I - "argument" or "variable" */ + mxml_node_t *type) /* I - Type nodes */ +{ + mxml_node_t *variable, /* New variable */ + *node, /* Current node */ + *next; /* Next node */ + char buffer[16384], /* String buffer */ + *bufptr; /* Pointer into buffer */ + + +#ifdef DEBUG + fprintf(stderr, "add_variable(parent=%p, name=\"%s\", type=%p)\n", + parent, name, type); +#endif /* DEBUG */ + + /* + * Range check input... + */ + + if (!type || !type->child) + return (NULL); + + /* + * Create the variable/argument node... + */ + + variable = mxmlNewElement(parent, name); + + /* + * Check for a default value... + */ + + for (node = type->child; node; node = node->next) + if (!strcmp(node->value.text.string, "=")) + break; + + if (node) + { + /* + * Default value found, copy it and add as a "default" attribute... + */ + + for (bufptr = buffer; node; bufptr += strlen(bufptr)) + { + if (node->value.text.whitespace && bufptr > buffer) + *bufptr++ = ' '; + + strcpy(bufptr, node->value.text.string); + + next = node->next; + mxmlDelete(node); + node = next; + } + + mxmlElementSetAttr(variable, "default", buffer); + } + + /* + * Extract the argument/variable name... + */ + + if (type->last_child->value.text.string[0] == ')') + { + /* + * Handle "type (*name)(args)"... + */ + + for (node = type->child; node; node = node->next) + if (node->value.text.string[0] == '(') + break; + + for (bufptr = buffer; node; bufptr += strlen(bufptr)) + { + if (node->value.text.whitespace && bufptr > buffer) + *bufptr++ = ' '; + + strcpy(bufptr, node->value.text.string); + + next = node->next; + mxmlDelete(node); + node = next; + } + } + else + { + /* + * Handle "type name"... + */ + + strcpy(buffer, type->last_child->value.text.string); + mxmlDelete(type->last_child); + } + + /* + * Set the name... + */ + + mxmlElementSetAttr(variable, "name", buffer); + + /* + * Add the remaining type information to the variable node... + */ + + mxmlAdd(variable, MXML_ADD_AFTER, MXML_ADD_TO_PARENT, type); + + /* + * Add new new variable node... + */ + + return (variable); +} + + +/* + * 'find_public()' - Find a public function, type, etc. + */ + +static mxml_node_t * /* I - Found node or NULL */ +find_public(mxml_node_t *node, /* I - Current node */ + mxml_node_t *top, /* I - Top node */ + const char *name) /* I - Name of element */ +{ + mxml_node_t *description, /* Description node */ + *comment; /* Comment node */ + + + for (node = mxmlFindElement(node, top, name, NULL, NULL, + node == top ? MXML_DESCEND_FIRST : + MXML_NO_DESCEND); + node; + node = mxmlFindElement(node, top, name, NULL, NULL, MXML_NO_DESCEND)) + { + /* + * Get the description for this node... + */ + + description = mxmlFindElement(node, node, "description", NULL, NULL, + MXML_DESCEND_FIRST); + + /* + * A missing or empty description signals a private node... + */ + + if (!description) + continue; + + /* + * Look for @private@ in the comment text... + */ + + for (comment = description->child; comment; comment = comment->next) + if ((comment->type == MXML_TEXT && + strstr(comment->value.text.string, "@private@")) || + (comment->type == MXML_OPAQUE && + strstr(comment->value.opaque, "@private@"))) + break; + + if (!comment) + { + /* + * No @private@, so return this node... + */ + + return (node); + } + } + + /* + * If we get here, there are no (more) public nodes... + */ + + return (NULL); +} + + +/* + * 'get_comment_info()' - Get info from comment. + */ + +static char * /* O - Info from comment */ +get_comment_info( + mxml_node_t *description) /* I - Description node */ +{ + char text[10240], /* Description text */ + since[255], /* @since value */ + *ptr; /* Pointer into text */ + static char info[1024]; /* Info string */ + + + if (!description) + return (""); + + get_text(description, text, sizeof(text)); + + for (ptr = strchr(text, '@'); ptr; ptr = strchr(ptr + 1, '@')) + { + if (!strncmp(ptr, "@deprecated@", 12)) + return (" DEPRECATED "); + else if (!strncmp(ptr, "@since ", 7)) + { + strncpy(since, ptr + 7, sizeof(since) - 1); + since[sizeof(since) - 1] = '\0'; + + if ((ptr = strchr(since, '@')) != NULL) + *ptr = '\0'; + + snprintf(info, sizeof(info), " %s ", since); + return (info); + } + } + + return (""); +} + + +/* + * 'get_text()' - Get the text for a node. + */ + +static char * /* O - Text in node */ +get_text(mxml_node_t *node, /* I - Node to get */ + char *buffer, /* I - Buffer */ + int buflen) /* I - Size of buffer */ +{ + char *ptr, /* Pointer into buffer */ + *end; /* End of buffer */ + int len; /* Length of node */ + mxml_node_t *current; /* Current node */ + + + ptr = buffer; + end = buffer + buflen - 1; + + for (current = node->child; current && ptr < end; current = current->next) + { + if (current->type == MXML_TEXT) + { + if (current->value.text.whitespace) + *ptr++ = ' '; + + len = (int)strlen(current->value.text.string); + if (len > (int)(end - ptr)) + len = (int)(end - ptr); + + memcpy(ptr, current->value.text.string, len); + ptr += len; + } + else if (current->type == MXML_OPAQUE) + { + len = (int)strlen(current->value.opaque); + if (len > (int)(end - ptr)) + len = (int)(end - ptr); + + memcpy(ptr, current->value.opaque, len); + ptr += len; + } + } + + *ptr = '\0'; + + return (buffer); +} + + +/* + * 'load_cb()' - Set the type of child nodes. + */ + +static mxml_type_t /* O - Node type */ +load_cb(mxml_node_t *node) /* I - Node */ +{ + if (!strcmp(node->value.element.name, "description")) + return (MXML_OPAQUE); + else + return (MXML_TEXT); +} + + +/* + * 'new_documentation()' - Create a new documentation tree. + */ + +static mxml_node_t * /* O - New documentation */ +new_documentation(mxml_node_t **mxmldoc)/* O - mxmldoc node */ +{ + mxml_node_t *doc; /* New documentation */ + + + /* + * Create an empty XML documentation file... + */ + + doc = mxmlNewXML(NULL); + + *mxmldoc = mxmlNewElement(doc, "mxmldoc"); + + mxmlElementSetAttr(*mxmldoc, "xmlns", "http://www.easysw.com"); + mxmlElementSetAttr(*mxmldoc, "xmlns:xsi", + "http://www.w3.org/2001/XMLSchema-instance"); + mxmlElementSetAttr(*mxmldoc, "xsi:schemaLocation", + "http://www.minixml.org/mxmldoc.xsd"); + + return (doc); +} + + +/* + * 'remove_directory()' - Remove a directory. + */ + +static int /* O - 1 on success, 0 on failure */ +remove_directory(const char *path) /* I - Directory to remove */ +{ +#ifdef WIN32 + /* TODO: Add Windows directory removal code */ + +#else + DIR *dir; /* Directory */ + struct dirent *dent; /* Current directory entry */ + char filename[1024]; /* Current filename */ + struct stat fileinfo; /* File information */ + + + if ((dir = opendir(path)) == NULL) + { + fprintf(stderr, "mxmldoc: Unable to open directory \"%s\": %s\n", path, + strerror(errno)); + return (0); + } + + while ((dent = readdir(dir)) != NULL) + { + /* + * Skip "." and ".."... + */ + + if (!strcmp(dent->d_name, ".") || !strcmp(dent->d_name, "..")) + continue; + + /* + * See if we have a file or directory... + */ + + snprintf(filename, sizeof(filename), "%s/%s", path, dent->d_name); + + if (stat(filename, &fileinfo)) + { + fprintf(stderr, "mxmldoc: Unable to stat \"%s\": %s\n", filename, + strerror(errno)); + closedir(dir); + return (0); + } + + if (S_ISDIR(fileinfo.st_mode)) + { + if (!remove_directory(filename)) + { + closedir(dir); + return (0); + } + } + else if (unlink(filename)) + { + fprintf(stderr, "mxmldoc: Unable to remove \"%s\": %s\n", filename, + strerror(errno)); + closedir(dir); + return (0); + } + } + + closedir(dir); + + if (rmdir(path)) + { + fprintf(stderr, "mxmldoc: Unable to remove directory \"%s\": %s\n", path, + strerror(errno)); + return (0); + } +#endif /* WIN32 */ + + return (1); +} + + +/* + * 'safe_strcpy()' - Copy a string allowing for overlapping strings. + */ + +static void +safe_strcpy(char *dst, /* I - Destination string */ + const char *src) /* I - Source string */ +{ + while (*src) + *dst++ = *src++; + + *dst = '\0'; +} + + +/* + * 'scan_file()' - Scan a source file. + */ + +static int /* O - 0 on success, -1 on error */ +scan_file(const char *filename, /* I - Filename */ + FILE *fp, /* I - File to scan */ + mxml_node_t *tree) /* I - Function tree */ +{ + int state, /* Current parser state */ + braces, /* Number of braces active */ + parens; /* Number of active parenthesis */ + int ch; /* Current character */ + char buffer[65536], /* String buffer */ + *bufptr; /* Pointer into buffer */ + const char *scope; /* Current variable/function scope */ + mxml_node_t *comment, /* node */ + *constant, /* node */ + *enumeration, /* node */ + *function, /* node */ + *fstructclass, /* function struct/class node */ + *structclass, /* or node */ + *typedefnode, /* node */ + *variable, /* or node */ + *returnvalue, /* node */ + *type, /* node */ + *description, /* node */ + *node, /* Current node */ + *next; /* Next node */ +#if DEBUG > 1 + mxml_node_t *temp; /* Temporary node */ + int oldstate, /* Previous state */ + oldch; /* Old character */ + static const char *states[] = /* State strings */ + { + "STATE_NONE", + "STATE_PREPROCESSOR", + "STATE_C_COMMENT", + "STATE_CXX_COMMENT", + "STATE_STRING", + "STATE_CHARACTER", + "STATE_IDENTIFIER" + }; +#endif /* DEBUG > 1 */ + + +#ifdef DEBUG + fprintf(stderr, "scan_file(filename=\"%s\", fp=%p, tree=%p)\n", filename, + fp, tree); +#endif /* DEBUG */ + + /* + * Initialize the finite state machine... + */ + + state = STATE_NONE; + braces = 0; + parens = 0; + bufptr = buffer; + + comment = mxmlNewElement(MXML_NO_PARENT, "temp"); + constant = NULL; + enumeration = NULL; + function = NULL; + variable = NULL; + returnvalue = NULL; + type = NULL; + description = NULL; + typedefnode = NULL; + structclass = NULL; + fstructclass = NULL; + + if (!strcmp(tree->value.element.name, "class")) + scope = "private"; + else + scope = NULL; + + /* + * Read until end-of-file... + */ + + while ((ch = getc(fp)) != EOF) + { +#if DEBUG > 1 + oldstate = state; + oldch = ch; +#endif /* DEBUG > 1 */ + + switch (state) + { + case STATE_NONE : /* No state - whitespace, etc. */ + switch (ch) + { + case '/' : /* Possible C/C++ comment */ + ch = getc(fp); + bufptr = buffer; + + if (ch == '*') + state = STATE_C_COMMENT; + else if (ch == '/') + state = STATE_CXX_COMMENT; + else + { + ungetc(ch, fp); + + if (type) + { +#ifdef DEBUG + fputs("Identifier: <<<< / >>>\n", stderr); +#endif /* DEBUG */ + ch = type->last_child->value.text.string[0]; + mxmlNewText(type, isalnum(ch) || ch == '_', "/"); + } + } + break; + + case '#' : /* Preprocessor */ +#ifdef DEBUG + fputs(" #preprocessor...\n", stderr); +#endif /* DEBUG */ + state = STATE_PREPROCESSOR; + break; + + case '\'' : /* Character constant */ + state = STATE_CHARACTER; + bufptr = buffer; + *bufptr++ = ch; + break; + + case '\"' : /* String constant */ + state = STATE_STRING; + bufptr = buffer; + *bufptr++ = ch; + break; + + case '{' : +#ifdef DEBUG + fprintf(stderr, " open brace, function=%p, type=%p...\n", + function, type); + if (type) + fprintf(stderr, " type->child=\"%s\"...\n", + type->child->value.text.string); +#endif /* DEBUG */ + + if (function) + { + if (fstructclass) + { + sort_node(fstructclass, function); + fstructclass = NULL; + } + else + sort_node(tree, function); + + function = NULL; + } + else if (type && type->child && + ((!strcmp(type->child->value.text.string, "typedef") && + type->child->next && + (!strcmp(type->child->next->value.text.string, "struct") || + !strcmp(type->child->next->value.text.string, "union") || + !strcmp(type->child->next->value.text.string, "class"))) || + !strcmp(type->child->value.text.string, "union") || + !strcmp(type->child->value.text.string, "struct") || + !strcmp(type->child->value.text.string, "class"))) + { + /* + * Start of a class or structure... + */ + + if (!strcmp(type->child->value.text.string, "typedef")) + { +#ifdef DEBUG + fputs(" starting typedef...\n", stderr); +#endif /* DEBUG */ + + typedefnode = mxmlNewElement(MXML_NO_PARENT, "typedef"); + mxmlDelete(type->child); + } + else + typedefnode = NULL; + + structclass = mxmlNewElement(MXML_NO_PARENT, + type->child->value.text.string); + +#ifdef DEBUG + fprintf(stderr, "%c%s: <<<< %s >>>\n", + toupper(type->child->value.text.string[0]), + type->child->value.text.string + 1, + type->child->next ? + type->child->next->value.text.string : "(noname)"); + + fputs(" type =", stderr); + for (node = type->child; node; node = node->next) + fprintf(stderr, " \"%s\"", node->value.text.string); + putc('\n', stderr); + + fprintf(stderr, " scope = %s\n", scope ? scope : "(null)"); +#endif /* DEBUG */ + + if (type->child->next) + { + mxmlElementSetAttr(structclass, "name", + type->child->next->value.text.string); + sort_node(tree, structclass); + } + + if (typedefnode && type->child) + type->child->value.text.whitespace = 0; + else if (structclass && type->child && + type->child->next && type->child->next->next) + { + for (bufptr = buffer, node = type->child->next->next; + node; + bufptr += strlen(bufptr)) + { + if (node->value.text.whitespace && bufptr > buffer) + *bufptr++ = ' '; + + strcpy(bufptr, node->value.text.string); + + next = node->next; + mxmlDelete(node); + node = next; + } + + mxmlElementSetAttr(structclass, "parent", buffer); + + mxmlDelete(type); + type = NULL; + } + else + { + mxmlDelete(type); + type = NULL; + } + + if (typedefnode && comment->last_child) + { + /* + * Copy comment for typedef as well as class/struct/union... + */ + + mxmlNewText(comment, 0, + comment->last_child->value.text.string); + description = mxmlNewElement(typedefnode, "description"); +#ifdef DEBUG + fprintf(stderr, + " duplicating comment %p/%p for typedef...\n", + comment->last_child, comment->child); +#endif /* DEBUG */ + update_comment(typedefnode, comment->last_child); + mxmlAdd(description, MXML_ADD_AFTER, MXML_ADD_TO_PARENT, + comment->last_child); + } + + description = mxmlNewElement(structclass, "description"); +#ifdef DEBUG + fprintf(stderr, " adding comment %p/%p to %s...\n", + comment->last_child, comment->child, + structclass->value.element.name); +#endif /* DEBUG */ + update_comment(structclass, comment->last_child); + mxmlAdd(description, MXML_ADD_AFTER, MXML_ADD_TO_PARENT, + comment->last_child); + + if (scan_file(filename, fp, structclass)) + { + mxmlDelete(comment); + return (-1); + } + +#ifdef DEBUG + fputs(" ended typedef...\n", stderr); +#endif /* DEBUG */ + structclass = NULL; + break; + } + else if (type && type->child && type->child->next && + (!strcmp(type->child->value.text.string, "enum") || + (!strcmp(type->child->value.text.string, "typedef") && + !strcmp(type->child->next->value.text.string, "enum")))) + { + /* + * Enumeration type... + */ + + if (!strcmp(type->child->value.text.string, "typedef")) + { +#ifdef DEBUG + fputs(" starting typedef...\n", stderr); +#endif /* DEBUG */ + + typedefnode = mxmlNewElement(MXML_NO_PARENT, "typedef"); + mxmlDelete(type->child); + } + else + typedefnode = NULL; + + enumeration = mxmlNewElement(MXML_NO_PARENT, "enumeration"); + +#ifdef DEBUG + fprintf(stderr, "Enumeration: <<<< %s >>>\n", + type->child->next ? + type->child->next->value.text.string : "(noname)"); +#endif /* DEBUG */ + + if (type->child->next) + { + mxmlElementSetAttr(enumeration, "name", + type->child->next->value.text.string); + sort_node(tree, enumeration); + } + + if (typedefnode && type->child) + type->child->value.text.whitespace = 0; + else + { + mxmlDelete(type); + type = NULL; + } + + if (typedefnode && comment->last_child) + { + /* + * Copy comment for typedef as well as class/struct/union... + */ + + mxmlNewText(comment, 0, + comment->last_child->value.text.string); + description = mxmlNewElement(typedefnode, "description"); +#ifdef DEBUG + fprintf(stderr, + " duplicating comment %p/%p for typedef...\n", + comment->last_child, comment->child); +#endif /* DEBUG */ + update_comment(typedefnode, comment->last_child); + mxmlAdd(description, MXML_ADD_AFTER, MXML_ADD_TO_PARENT, + comment->last_child); + } + + description = mxmlNewElement(enumeration, "description"); +#ifdef DEBUG + fprintf(stderr, " adding comment %p/%p to enumeration...\n", + comment->last_child, comment->child); +#endif /* DEBUG */ + update_comment(enumeration, comment->last_child); + mxmlAdd(description, MXML_ADD_AFTER, MXML_ADD_TO_PARENT, + comment->last_child); + } + else if (type && type->child && + !strcmp(type->child->value.text.string, "extern")) + { + if (scan_file(filename, fp, tree)) + { + mxmlDelete(comment); + return (-1); + } + } + else if (type) + { + mxmlDelete(type); + type = NULL; + } + + braces ++; + function = NULL; + variable = NULL; + break; + + case '}' : +#ifdef DEBUG + fputs(" close brace...\n", stderr); +#endif /* DEBUG */ + + if (structclass) + scope = NULL; + + if (!typedefnode) + enumeration = NULL; + + constant = NULL; + structclass = NULL; + + if (braces > 0) + braces --; + else + { + mxmlDelete(comment); + return (0); + } + break; + + case '(' : + if (type) + { +#ifdef DEBUG + fputs("Identifier: <<<< ( >>>\n", stderr); +#endif /* DEBUG */ + mxmlNewText(type, 0, "("); + } + + parens ++; + break; + + case ')' : + if (type && parens) + { +#ifdef DEBUG + fputs("Identifier: <<<< ) >>>\n", stderr); +#endif /* DEBUG */ + mxmlNewText(type, 0, ")"); + } + + if (function && type && !parens) + { + /* + * Check for "void" argument... + */ + + if (type->child && type->child->next) + variable = add_variable(function, "argument", type); + else + mxmlDelete(type); + + type = NULL; + } + + if (parens > 0) + parens --; + break; + + case ';' : +#ifdef DEBUG + fputs("Identifier: <<<< ; >>>\n", stderr); + fprintf(stderr, " enumeration=%p, function=%p, type=%p, type->child=%p, typedefnode=%p\n", + enumeration, function, type, type ? type->child : NULL, typedefnode); +#endif /* DEBUG */ + + if (function) + { + if (!strcmp(tree->value.element.name, "class")) + { +#ifdef DEBUG + fputs(" ADDING FUNCTION TO CLASS\n", stderr); +#endif /* DEBUG */ + sort_node(tree, function); + } + else + mxmlDelete(function); + + function = NULL; + variable = NULL; + } + + if (type) + { + /* + * See if we have a typedef... + */ + + if (type->child && + !strcmp(type->child->value.text.string, "typedef")) + { + /* + * Yes, add it! + */ + + typedefnode = mxmlNewElement(MXML_NO_PARENT, "typedef"); + + for (node = type->child->next; node; node = node->next) + if (!strcmp(node->value.text.string, "(")) + break; + + if (node) + { + for (node = node->next; node; node = node->next) + if (strcmp(node->value.text.string, "*")) + break; + } + + if (!node) + node = type->last_child; + +#ifdef DEBUG + fprintf(stderr, " ADDING TYPEDEF FOR %p(%s)...\n", + node, node->value.text.string); +#endif /* DEBUG */ + + mxmlElementSetAttr(typedefnode, "name", + node->value.text.string); + sort_node(tree, typedefnode); + + if (type->child != node) + mxmlDelete(type->child); + + mxmlDelete(node); + + if (type->child) + type->child->value.text.whitespace = 0; + + mxmlAdd(typedefnode, MXML_ADD_AFTER, MXML_ADD_TO_PARENT, + type); + type = NULL; + break; + } + else if (typedefnode && enumeration) + { + /* + * Add enum typedef... + */ + + node = type->child; + +#ifdef DEBUG + fprintf(stderr, " ADDING TYPEDEF FOR %p(%s)...\n", + node, node->value.text.string); +#endif /* DEBUG */ + + mxmlElementSetAttr(typedefnode, "name", + node->value.text.string); + sort_node(tree, typedefnode); + mxmlDelete(type); + + type = mxmlNewElement(typedefnode, "type"); + mxmlNewText(type, 0, "enum"); + mxmlNewText(type, 1, + mxmlElementGetAttr(enumeration, "name")); + enumeration = NULL; + type = NULL; + break; + } + + mxmlDelete(type); + type = NULL; + } + break; + + case ':' : + if (type) + { +#ifdef DEBUG + fputs("Identifier: <<<< : >>>\n", stderr); +#endif /* DEBUG */ + mxmlNewText(type, 1, ":"); + } + break; + + case '*' : + if (type) + { +#ifdef DEBUG + fputs("Identifier: <<<< * >>>\n", stderr); +#endif /* DEBUG */ + ch = type->last_child->value.text.string[0]; + mxmlNewText(type, isalnum(ch) || ch == '_', "*"); + } + break; + + case ',' : + if (type && !enumeration) + { +#ifdef DEBUG + fputs("Identifier: <<<< , >>>\n", stderr); +#endif /* DEBUG */ + mxmlNewText(type, 0, ","); + } + break; + + case '&' : + if (type) + { +#ifdef DEBUG + fputs("Identifier: <<<< & >>>\n", stderr); +#endif /* DEBUG */ + mxmlNewText(type, 1, "&"); + } + break; + + case '+' : + if (type) + { +#ifdef DEBUG + fputs("Identifier: <<<< + >>>\n", stderr); +#endif /* DEBUG */ + ch = type->last_child->value.text.string[0]; + mxmlNewText(type, isalnum(ch) || ch == '_', "+"); + } + break; + + case '-' : + if (type) + { +#ifdef DEBUG + fputs("Identifier: <<<< - >>>\n", stderr); +#endif /* DEBUG */ + ch = type->last_child->value.text.string[0]; + mxmlNewText(type, isalnum(ch) || ch == '_', "-"); + } + break; + + case '=' : + if (type) + { +#ifdef DEBUG + fputs("Identifier: <<<< = >>>\n", stderr); +#endif /* DEBUG */ + ch = type->last_child->value.text.string[0]; + mxmlNewText(type, isalnum(ch) || ch == '_', "="); + } + break; + + default : /* Other */ + if (isalnum(ch) || ch == '_' || ch == '.' || ch == ':' || ch == '~') + { + state = STATE_IDENTIFIER; + bufptr = buffer; + *bufptr++ = ch; + } + break; + } + break; + + case STATE_PREPROCESSOR : /* Preprocessor directive */ + if (ch == '\n') + state = STATE_NONE; + else if (ch == '\\') + getc(fp); + break; + + case STATE_C_COMMENT : /* Inside a C comment */ + switch (ch) + { + case '\n' : + while ((ch = getc(fp)) != EOF) + if (ch == '*') + { + ch = getc(fp); + + if (ch == '/') + { + *bufptr = '\0'; + + if (comment->child != comment->last_child) + { +#ifdef DEBUG + fprintf(stderr, " removing comment %p(%20.20s), last comment %p(%20.20s)...\n", + comment->child, + comment->child ? comment->child->value.text.string : "", + comment->last_child, + comment->last_child ? comment->last_child->value.text.string : ""); +#endif /* DEBUG */ + mxmlDelete(comment->child); +#ifdef DEBUG + fprintf(stderr, " new comment %p, last comment %p...\n", + comment->child, comment->last_child); +#endif /* DEBUG */ + } + +#ifdef DEBUG + fprintf(stderr, + " processing comment, variable=%p, " + "constant=%p, typedefnode=%p, tree=\"%s\"\n", + variable, constant, typedefnode, + tree->value.element.name); +#endif /* DEBUG */ + + if (variable) + { + if (strstr(buffer, "@private@")) + { + /* + * Delete private variables... + */ + + mxmlDelete(variable); + } + else + { + description = mxmlNewElement(variable, "description"); +#ifdef DEBUG + fprintf(stderr, + " adding comment %p/%p to variable...\n", + comment->last_child, comment->child); +#endif /* DEBUG */ + mxmlNewText(comment, 0, buffer); + update_comment(variable, + mxmlNewText(description, 0, buffer)); + } + + variable = NULL; + } + else if (constant) + { + if (strstr(buffer, "@private@")) + { + /* + * Delete private constants... + */ + + mxmlDelete(constant); + } + else + { + description = mxmlNewElement(constant, "description"); +#ifdef DEBUG + fprintf(stderr, + " adding comment %p/%p to constant...\n", + comment->last_child, comment->child); +#endif /* DEBUG */ + mxmlNewText(comment, 0, buffer); + update_comment(constant, + mxmlNewText(description, 0, buffer)); + } + + constant = NULL; + } + else if (typedefnode) + { + if (strstr(buffer, "@private@")) + { + /* + * Delete private typedefs... + */ + + mxmlDelete(typedefnode); + + if (structclass) + { + mxmlDelete(structclass); + structclass = NULL; + } + + if (enumeration) + { + mxmlDelete(enumeration); + enumeration = NULL; + } + } + else + { + description = mxmlNewElement(typedefnode, "description"); +#ifdef DEBUG + fprintf(stderr, + " adding comment %p/%p to typedef %s...\n", + comment->last_child, comment->child, + mxmlElementGetAttr(typedefnode, "name")); +#endif /* DEBUG */ + mxmlNewText(comment, 0, buffer); + update_comment(typedefnode, + mxmlNewText(description, 0, buffer)); + + if (structclass) + { + description = mxmlNewElement(structclass, "description"); + update_comment(structclass, + mxmlNewText(description, 0, buffer)); + } + else if (enumeration) + { + description = mxmlNewElement(enumeration, "description"); + update_comment(enumeration, + mxmlNewText(description, 0, buffer)); + } + } + + typedefnode = NULL; + } + else if (strcmp(tree->value.element.name, "mxmldoc") && + !mxmlFindElement(tree, tree, "description", + NULL, NULL, MXML_DESCEND_FIRST)) + { + description = mxmlNewElement(tree, "description"); +#ifdef DEBUG + fprintf(stderr, " adding comment %p/%p to parent...\n", + comment->last_child, comment->child); +#endif /* DEBUG */ + mxmlNewText(comment, 0, buffer); + update_comment(tree, + mxmlNewText(description, 0, buffer)); + } + else + { +#ifdef DEBUG + fprintf(stderr, " before adding comment, child=%p, last_child=%p\n", + comment->child, comment->last_child); +#endif /* DEBUG */ + mxmlNewText(comment, 0, buffer); +#ifdef DEBUG + fprintf(stderr, " after adding comment, child=%p, last_child=%p\n", + comment->child, comment->last_child); +#endif /* DEBUG */ + } +#ifdef DEBUG + fprintf(stderr, "C comment: <<<< %s >>>\n", buffer); +#endif /* DEBUG */ + + state = STATE_NONE; + break; + } + else + ungetc(ch, fp); + } + else if (ch == '\n' && bufptr > buffer && + bufptr < (buffer + sizeof(buffer) - 1)) + *bufptr++ = ch; + else if (!isspace(ch)) + break; + + if (ch != EOF) + ungetc(ch, fp); + + if (bufptr > buffer && bufptr < (buffer + sizeof(buffer) - 1)) + *bufptr++ = '\n'; + break; + + case '/' : + if (ch == '/' && bufptr > buffer && bufptr[-1] == '*') + { + while (bufptr > buffer && + (bufptr[-1] == '*' || isspace(bufptr[-1] & 255))) + bufptr --; + *bufptr = '\0'; + + if (comment->child != comment->last_child) + { +#ifdef DEBUG + fprintf(stderr, " removing comment %p(%20.20s), last comment %p(%20.20s)...\n", + comment->child, + comment->child ? comment->child->value.text.string : "", + comment->last_child, + comment->last_child ? comment->last_child->value.text.string : ""); +#endif /* DEBUG */ + mxmlDelete(comment->child); +#ifdef DEBUG + fprintf(stderr, " new comment %p, last comment %p...\n", + comment->child, comment->last_child); +#endif /* DEBUG */ + } + +#ifdef DEBUG + fprintf(stderr, + " processing comment, variable=%p, " + "constant=%p, typedefnode=%p, tree=\"%s\"\n", + variable, constant, typedefnode, + tree->value.element.name); +#endif /* DEBUG */ + + if (variable) + { + if (strstr(buffer, "@private@")) + { + /* + * Delete private variables... + */ + + mxmlDelete(variable); + } + else + { + description = mxmlNewElement(variable, "description"); +#ifdef DEBUG + fprintf(stderr, " adding comment %p/%p to variable...\n", + comment->last_child, comment->child); +#endif /* DEBUG */ + mxmlNewText(comment, 0, buffer); + update_comment(variable, + mxmlNewText(description, 0, buffer)); + } + + variable = NULL; + } + else if (constant) + { + if (strstr(buffer, "@private@")) + { + /* + * Delete private constants... + */ + + mxmlDelete(constant); + } + else + { + description = mxmlNewElement(constant, "description"); +#ifdef DEBUG + fprintf(stderr, " adding comment %p/%p to constant...\n", + comment->last_child, comment->child); +#endif /* DEBUG */ + mxmlNewText(comment, 0, buffer); + update_comment(constant, + mxmlNewText(description, 0, buffer)); + } + + constant = NULL; + } + else if (typedefnode) + { + if (strstr(buffer, "@private@")) + { + /* + * Delete private typedefs... + */ + + mxmlDelete(typedefnode); + + if (structclass) + { + mxmlDelete(structclass); + structclass = NULL; + } + + if (enumeration) + { + mxmlDelete(enumeration); + enumeration = NULL; + } + } + else + { + description = mxmlNewElement(typedefnode, "description"); +#ifdef DEBUG + fprintf(stderr, + " adding comment %p/%p to typedef %s...\n", + comment->last_child, comment->child, + mxmlElementGetAttr(typedefnode, "name")); +#endif /* DEBUG */ + mxmlNewText(comment, 0, buffer); + update_comment(typedefnode, + mxmlNewText(description, 0, buffer)); + + if (structclass) + { + description = mxmlNewElement(structclass, "description"); + update_comment(structclass, + mxmlNewText(description, 0, buffer)); + } + else if (enumeration) + { + description = mxmlNewElement(enumeration, "description"); + update_comment(enumeration, + mxmlNewText(description, 0, buffer)); + } + } + + typedefnode = NULL; + } + else if (strcmp(tree->value.element.name, "mxmldoc") && + !mxmlFindElement(tree, tree, "description", + NULL, NULL, MXML_DESCEND_FIRST)) + { + description = mxmlNewElement(tree, "description"); +#ifdef DEBUG + fprintf(stderr, " adding comment %p/%p to parent...\n", + comment->last_child, comment->child); +#endif /* DEBUG */ + mxmlNewText(comment, 0, buffer); + update_comment(tree, + mxmlNewText(description, 0, buffer)); + } + else + mxmlNewText(comment, 0, buffer); + +#ifdef DEBUG + fprintf(stderr, "C comment: <<<< %s >>>\n", buffer); +#endif /* DEBUG */ + + state = STATE_NONE; + break; + } + + default : + if (ch == ' ' && bufptr == buffer) + break; + + if (bufptr < (buffer + sizeof(buffer) - 1)) + *bufptr++ = ch; + break; + } + break; + + case STATE_CXX_COMMENT : /* Inside a C++ comment */ + if (ch == '\n') + { + state = STATE_NONE; + *bufptr = '\0'; + + if (comment->child != comment->last_child) + { +#ifdef DEBUG + fprintf(stderr, " removing comment %p(%20.20s), last comment %p(%20.20s)...\n", + comment->child, + comment->child ? comment->child->value.text.string : "", + comment->last_child, + comment->last_child ? comment->last_child->value.text.string : ""); +#endif /* DEBUG */ + mxmlDelete(comment->child); +#ifdef DEBUG + fprintf(stderr, " new comment %p, last comment %p...\n", + comment->child, comment->last_child); +#endif /* DEBUG */ + } + + if (variable) + { + if (strstr(buffer, "@private@")) + { + /* + * Delete private variables... + */ + + mxmlDelete(variable); + } + else + { + description = mxmlNewElement(variable, "description"); +#ifdef DEBUG + fprintf(stderr, " adding comment %p/%p to variable...\n", + comment->last_child, comment->child); +#endif /* DEBUG */ + mxmlNewText(comment, 0, buffer); + update_comment(variable, + mxmlNewText(description, 0, buffer)); + } + + variable = NULL; + } + else if (constant) + { + if (strstr(buffer, "@private@")) + { + /* + * Delete private constants... + */ + + mxmlDelete(constant); + } + else + { + description = mxmlNewElement(constant, "description"); +#ifdef DEBUG + fprintf(stderr, " adding comment %p/%p to constant...\n", + comment->last_child, comment->child); +#endif /* DEBUG */ + mxmlNewText(comment, 0, buffer); + update_comment(constant, + mxmlNewText(description, 0, buffer)); + } + + constant = NULL; + } + else if (typedefnode) + { + if (strstr(buffer, "@private@")) + { + /* + * Delete private typedefs... + */ + + mxmlDelete(typedefnode); + typedefnode = NULL; + + if (structclass) + { + mxmlDelete(structclass); + structclass = NULL; + } + + if (enumeration) + { + mxmlDelete(enumeration); + enumeration = NULL; + } + } + else + { + description = mxmlNewElement(typedefnode, "description"); +#ifdef DEBUG + fprintf(stderr, " adding comment %p/%p to typedef %s...\n", + comment->last_child, comment->child, + mxmlElementGetAttr(typedefnode, "name")); +#endif /* DEBUG */ + mxmlNewText(comment, 0, buffer); + update_comment(typedefnode, + mxmlNewText(description, 0, buffer)); + + if (structclass) + { + description = mxmlNewElement(structclass, "description"); + update_comment(structclass, + mxmlNewText(description, 0, buffer)); + } + else if (enumeration) + { + description = mxmlNewElement(enumeration, "description"); + update_comment(enumeration, + mxmlNewText(description, 0, buffer)); + } + } + } + else if (strcmp(tree->value.element.name, "mxmldoc") && + !mxmlFindElement(tree, tree, "description", + NULL, NULL, MXML_DESCEND_FIRST)) + { + description = mxmlNewElement(tree, "description"); +#ifdef DEBUG + fprintf(stderr, " adding comment %p/%p to parent...\n", + comment->last_child, comment->child); +#endif /* DEBUG */ + mxmlNewText(comment, 0, buffer); + update_comment(tree, + mxmlNewText(description, 0, buffer)); + } + else + mxmlNewText(comment, 0, buffer); + +#ifdef DEBUG + fprintf(stderr, "C++ comment: <<<< %s >>>\n", buffer); +#endif /* DEBUG */ + } + else if (ch == ' ' && bufptr == buffer) + break; + else if (bufptr < (buffer + sizeof(buffer) - 1)) + *bufptr++ = ch; + break; + + case STATE_STRING : /* Inside a string constant */ + *bufptr++ = ch; + + if (ch == '\\') + *bufptr++ = getc(fp); + else if (ch == '\"') + { + *bufptr = '\0'; + + if (type) + mxmlNewText(type, type->child != NULL, buffer); + + state = STATE_NONE; + } + break; + + case STATE_CHARACTER : /* Inside a character constant */ + *bufptr++ = ch; + + if (ch == '\\') + *bufptr++ = getc(fp); + else if (ch == '\'') + { + *bufptr = '\0'; + + if (type) + mxmlNewText(type, type->child != NULL, buffer); + + state = STATE_NONE; + } + break; + + case STATE_IDENTIFIER : /* Inside a keyword or identifier */ + if (isalnum(ch) || ch == '_' || ch == '[' || ch == ']' || + (ch == ',' && (parens > 1 || (type && !enumeration && !function))) || + ch == ':' || ch == '.' || ch == '~') + { + if (bufptr < (buffer + sizeof(buffer) - 1)) + *bufptr++ = ch; + } + else + { + ungetc(ch, fp); + *bufptr = '\0'; + state = STATE_NONE; + +#ifdef DEBUG + fprintf(stderr, " braces=%d, type=%p, type->child=%p, buffer=\"%s\"\n", + braces, type, type ? type->child : NULL, buffer); +#endif /* DEBUG */ + + if (!braces) + { + if (!type || !type->child) + { + if (!strcmp(tree->value.element.name, "class")) + { + if (!strcmp(buffer, "public") || + !strcmp(buffer, "public:")) + { + scope = "public"; +#ifdef DEBUG + fputs(" scope = public\n", stderr); +#endif /* DEBUG */ + break; + } + else if (!strcmp(buffer, "private") || + !strcmp(buffer, "private:")) + { + scope = "private"; +#ifdef DEBUG + fputs(" scope = private\n", stderr); +#endif /* DEBUG */ + break; + } + else if (!strcmp(buffer, "protected") || + !strcmp(buffer, "protected:")) + { + scope = "protected"; +#ifdef DEBUG + fputs(" scope = protected\n", stderr); +#endif /* DEBUG */ + break; + } + } + } + + if (!type) + type = mxmlNewElement(MXML_NO_PARENT, "type"); + +#ifdef DEBUG + fprintf(stderr, " function=%p (%s), type->child=%p, ch='%c', parens=%d\n", + function, + function ? mxmlElementGetAttr(function, "name") : "null", + type->child, ch, parens); +#endif /* DEBUG */ + + if (!function && ch == '(') + { + if (type->child && + !strcmp(type->child->value.text.string, "extern")) + { + /* + * Remove external declarations... + */ + + mxmlDelete(type); + type = NULL; + break; + } + + if (type->child && + !strcmp(type->child->value.text.string, "static") && + !strcmp(tree->value.element.name, "mxmldoc")) + { + /* + * Remove static functions... + */ + + mxmlDelete(type); + type = NULL; + break; + } + + function = mxmlNewElement(MXML_NO_PARENT, "function"); + if ((bufptr = strchr(buffer, ':')) != NULL && bufptr[1] == ':') + { + *bufptr = '\0'; + bufptr += 2; + + if ((fstructclass = + mxmlFindElement(tree, tree, "class", "name", buffer, + MXML_DESCEND_FIRST)) == NULL) + fstructclass = + mxmlFindElement(tree, tree, "struct", "name", buffer, + MXML_DESCEND_FIRST); + } + else + bufptr = buffer; + + mxmlElementSetAttr(function, "name", bufptr); + + if (scope) + mxmlElementSetAttr(function, "scope", scope); + +#ifdef DEBUG + fprintf(stderr, "function: %s\n", buffer); + fprintf(stderr, " scope = %s\n", scope ? scope : "(null)"); + fprintf(stderr, " comment = %p\n", comment); + fprintf(stderr, " child = (%p) %s\n", + comment->child, + comment->child ? + comment->child->value.text.string : "(null)"); + fprintf(stderr, " last_child = (%p) %s\n", + comment->last_child, + comment->last_child ? + comment->last_child->value.text.string : "(null)"); +#endif /* DEBUG */ + + if (type->last_child && + strcmp(type->last_child->value.text.string, "void")) + { + returnvalue = mxmlNewElement(function, "returnvalue"); + + mxmlAdd(returnvalue, MXML_ADD_AFTER, MXML_ADD_TO_PARENT, type); + + description = mxmlNewElement(returnvalue, "description"); +#ifdef DEBUG + fprintf(stderr, " adding comment %p/%p to returnvalue...\n", + comment->last_child, comment->child); +#endif /* DEBUG */ + update_comment(returnvalue, comment->last_child); + mxmlAdd(description, MXML_ADD_AFTER, MXML_ADD_TO_PARENT, + comment->last_child); + } + else + mxmlDelete(type); + + description = mxmlNewElement(function, "description"); +#ifdef DEBUG + fprintf(stderr, " adding comment %p/%p to function...\n", + comment->last_child, comment->child); +#endif /* DEBUG */ + update_comment(function, comment->last_child); + mxmlAdd(description, MXML_ADD_AFTER, MXML_ADD_TO_PARENT, + comment->last_child); + + type = NULL; + } + else if (function && ((ch == ')' && parens == 1) || ch == ',')) + { + /* + * Argument definition... + */ + + if (strcmp(buffer, "void")) + { + mxmlNewText(type, type->child != NULL && + type->last_child->value.text.string[0] != '(' && + type->last_child->value.text.string[0] != '*', + buffer); + +#ifdef DEBUG + fprintf(stderr, "Argument: <<<< %s >>>\n", buffer); +#endif /* DEBUG */ + + variable = add_variable(function, "argument", type); + } + else + mxmlDelete(type); + + type = NULL; + } + else if (type->child && !function && (ch == ';' || ch == ',')) + { +#ifdef DEBUG + fprintf(stderr, " got semicolon, typedefnode=%p, structclass=%p\n", + typedefnode, structclass); +#endif /* DEBUG */ + + if (typedefnode || structclass) + { +#ifdef DEBUG + fprintf(stderr, "Typedef/struct/class: <<<< %s >>>>\n", buffer); +#endif /* DEBUG */ + + if (typedefnode) + { + mxmlElementSetAttr(typedefnode, "name", buffer); + + sort_node(tree, typedefnode); + } + + if (structclass && !mxmlElementGetAttr(structclass, "name")) + { +#ifdef DEBUG + fprintf(stderr, "setting struct/class name to %s!\n", + type->last_child->value.text.string); +#endif /* DEBUG */ + mxmlElementSetAttr(structclass, "name", buffer); + + sort_node(tree, structclass); + structclass = NULL; + } + + if (typedefnode) + mxmlAdd(typedefnode, MXML_ADD_BEFORE, MXML_ADD_TO_PARENT, + type); + else + mxmlDelete(type); + + type = NULL; + typedefnode = NULL; + } + else if (type->child && + !strcmp(type->child->value.text.string, "typedef")) + { + /* + * Simple typedef... + */ + +#ifdef DEBUG + fprintf(stderr, "Typedef: <<<< %s >>>\n", buffer); +#endif /* DEBUG */ + + typedefnode = mxmlNewElement(MXML_NO_PARENT, "typedef"); + mxmlElementSetAttr(typedefnode, "name", buffer); + mxmlDelete(type->child); + + sort_node(tree, typedefnode); + + if (type->child) + type->child->value.text.whitespace = 0; + + mxmlAdd(typedefnode, MXML_ADD_AFTER, MXML_ADD_TO_PARENT, type); + type = NULL; + } + else if (!parens) + { + /* + * Variable definition... + */ + + if (type->child && + !strcmp(type->child->value.text.string, "static") && + !strcmp(tree->value.element.name, "mxmldoc")) + { + /* + * Remove static functions... + */ + + mxmlDelete(type); + type = NULL; + break; + } + + mxmlNewText(type, type->child != NULL && + type->last_child->value.text.string[0] != '(' && + type->last_child->value.text.string[0] != '*', + buffer); + +#ifdef DEBUG + fprintf(stderr, "Variable: <<<< %s >>>>\n", buffer); + fprintf(stderr, " scope = %s\n", scope ? scope : "(null)"); +#endif /* DEBUG */ + + variable = add_variable(MXML_NO_PARENT, "variable", type); + type = NULL; + + sort_node(tree, variable); + + if (scope) + mxmlElementSetAttr(variable, "scope", scope); + } + } + else + { +#ifdef DEBUG + fprintf(stderr, "Identifier: <<<< %s >>>>\n", buffer); +#endif /* DEBUG */ + + mxmlNewText(type, type->child != NULL && + type->last_child->value.text.string[0] != '(' && + type->last_child->value.text.string[0] != '*', + buffer); + } + } + else if (enumeration && !isdigit(buffer[0] & 255)) + { +#ifdef DEBUG + fprintf(stderr, "Constant: <<<< %s >>>\n", buffer); +#endif /* DEBUG */ + + constant = mxmlNewElement(MXML_NO_PARENT, "constant"); + mxmlElementSetAttr(constant, "name", buffer); + sort_node(enumeration, constant); + } + else if (type) + { + mxmlDelete(type); + type = NULL; + } + } + break; + } + +#if DEBUG > 1 + if (state != oldstate) + { + fprintf(stderr, " changed states from %s to %s on receipt of character '%c'...\n", + states[oldstate], states[state], oldch); + fprintf(stderr, " variable = %p\n", variable); + if (type) + { + fputs(" type =", stderr); + for (temp = type->child; temp; temp = temp->next) + fprintf(stderr, " \"%s\"", temp->value.text.string); + fputs("\n", stderr); + } + } +#endif /* DEBUG > 1 */ + } + + mxmlDelete(comment); + + /* + * All done, return with no errors... + */ + + return (0); +} + + +/* + * 'sort_node()' - Insert a node sorted into a tree. + */ + +static void +sort_node(mxml_node_t *tree, /* I - Tree to sort into */ + mxml_node_t *node) /* I - Node to add */ +{ + mxml_node_t *temp; /* Current node */ + const char *tempname, /* Name of current node */ + *nodename, /* Name of node */ + *scope; /* Scope */ + + +#if DEBUG > 1 + fprintf(stderr, " sort_node(tree=%p, node=%p)\n", tree, node); +#endif /* DEBUG > 1 */ + + /* + * Range check input... + */ + + if (!tree || !node || node->parent == tree) + return; + + /* + * Get the node name... + */ + + if ((nodename = mxmlElementGetAttr(node, "name")) == NULL) + return; + + if (nodename[0] == '_') + return; /* Hide private names */ + +#if DEBUG > 1 + fprintf(stderr, " nodename=%p (\"%s\")\n", nodename, nodename); +#endif /* DEBUG > 1 */ + + /* + * Delete any existing definition at this level, if one exists... + */ + + if ((temp = mxmlFindElement(tree, tree, node->value.element.name, + "name", nodename, MXML_DESCEND_FIRST)) != NULL) + { + /* + * Copy the scope if needed... + */ + + if ((scope = mxmlElementGetAttr(temp, "scope")) != NULL && + mxmlElementGetAttr(node, "scope") == NULL) + { +#ifdef DEBUG + fprintf(stderr, " copying scope %s for %s\n", scope, nodename); +#endif /* DEBUG */ + + mxmlElementSetAttr(node, "scope", scope); + } + + mxmlDelete(temp); + } + + /* + * Add the node into the tree at the proper place... + */ + + for (temp = tree->child; temp; temp = temp->next) + { +#if DEBUG > 1 + fprintf(stderr, " temp=%p\n", temp); +#endif /* DEBUG > 1 */ + + if ((tempname = mxmlElementGetAttr(temp, "name")) == NULL) + continue; + +#if DEBUG > 1 + fprintf(stderr, " tempname=%p (\"%s\")\n", tempname, tempname); +#endif /* DEBUG > 1 */ + + if (strcmp(nodename, tempname) < 0) + break; + } + + if (temp) + mxmlAdd(tree, MXML_ADD_BEFORE, temp, node); + else + mxmlAdd(tree, MXML_ADD_AFTER, MXML_ADD_TO_PARENT, node); +} + + +/* + * 'update_comment()' - Update a comment node. + */ + +static void +update_comment(mxml_node_t *parent, /* I - Parent node */ + mxml_node_t *comment) /* I - Comment node */ +{ + char *ptr; /* Pointer into comment */ + + +#ifdef DEBUG + fprintf(stderr, "update_comment(parent=%p, comment=%p)\n", + parent, comment); +#endif /* DEBUG */ + + /* + * Range check the input... + */ + + if (!parent || !comment) + return; + + /* + * Convert "\/" to "/"... + */ + + for (ptr = strstr(comment->value.text.string, "\\/"); + ptr; + ptr = strstr(ptr, "\\/")) + safe_strcpy(ptr, ptr + 1); + + /* + * Update the comment... + */ + + ptr = comment->value.text.string; + + if (*ptr == '\'') + { + /* + * Convert "'name()' - description" to "description". + */ + + for (ptr ++; *ptr && *ptr != '\''; ptr ++); + + if (*ptr == '\'') + { + ptr ++; + while (isspace(*ptr & 255)) + ptr ++; + + if (*ptr == '-') + ptr ++; + + while (isspace(*ptr & 255)) + ptr ++; + + safe_strcpy(comment->value.text.string, ptr); + } + } + else if (!strncmp(ptr, "I ", 2) || !strncmp(ptr, "O ", 2) || + !strncmp(ptr, "IO ", 3)) + { + /* + * 'Convert "I - description", "IO - description", or "O - description" + * to description + direction attribute. + */ + + ptr = strchr(ptr, ' '); + *ptr++ = '\0'; + + if (!strcmp(parent->value.element.name, "argument")) + mxmlElementSetAttr(parent, "direction", comment->value.text.string); + + while (isspace(*ptr & 255)) + ptr ++; + + if (*ptr == '-') + ptr ++; + + while (isspace(*ptr & 255)) + ptr ++; + + safe_strcpy(comment->value.text.string, ptr); + } + + /* + * Eliminate leading and trailing *'s... + */ + + for (ptr = comment->value.text.string; *ptr == '*'; ptr ++); + for (; isspace(*ptr & 255); ptr ++); + if (ptr > comment->value.text.string) + safe_strcpy(comment->value.text.string, ptr); + + for (ptr = comment->value.text.string + strlen(comment->value.text.string) - 1; + ptr > comment->value.text.string && *ptr == '*'; + ptr --) + *ptr = '\0'; + for (; ptr > comment->value.text.string && isspace(*ptr & 255); ptr --) + *ptr = '\0'; + +#ifdef DEBUG + fprintf(stderr, " updated comment = %s\n", comment->value.text.string); +#endif /* DEBUG */ +} + + +/* + * 'usage()' - Show program usage... + */ + +static void +usage(const char *option) /* I - Unknown option */ +{ + if (option) + printf("mxmldoc: Bad option \"%s\"!\n\n", option); + + puts("Usage: mxmldoc [options] [filename.xml] [source files] >filename.html"); + puts("Options:"); + puts(" --css filename.css Set CSS stylesheet file"); + puts(" --docset bundleid.docset Generate documentation set"); + puts(" --docversion version Set documentation version"); + puts(" --feedname name Set documentation set feed name"); + puts(" --feedurl url Set documentation set feed URL"); + puts(" --footer footerfile Set footer file"); + puts(" --framed basename Generate framed HTML to basename*.html"); + puts(" --header headerfile Set header file"); + puts(" --intro introfile Set introduction file"); + puts(" --man name Generate man page"); + puts(" --no-output Do no generate documentation file"); + puts(" --section section Set section name"); + puts(" --title title Set documentation title"); + puts(" --tokens path Generate Xcode docset Tokens.xml file"); + puts(" --version Show mxmldoc/Mini-XML version"); + + exit(1); +} + + +/* + * 'write_description()' - Write the description text. + */ + +static void +write_description( + FILE *out, /* I - Output file */ + mxml_node_t *description, /* I - Description node */ + const char *element, /* I - HTML element, if any */ + int summary) /* I - Show summary */ +{ + char text[10240], /* Text for description */ + *start, /* Start of code/link */ + *ptr; /* Pointer into text */ + int col; /* Current column */ + + + if (!description) + return; + + get_text(description, text, sizeof(text)); + + ptr = strstr(text, "\n\n"); + + if (summary) + { + if (ptr) + *ptr = '\0'; + + ptr = text; + } + else if (!ptr || !ptr[2]) + return; + else + ptr += 2; + + if (element && *element) + fprintf(out, "<%s class=\"%s\">", element, + summary ? "description" : "discussion"); + else if (!summary) + fputs(".PP\n", out); + + for (col = 0; *ptr; ptr ++) + { + if (*ptr == '@' && + (!strncmp(ptr + 1, "deprecated@", 11) || + !strncmp(ptr + 1, "since ", 6))) + { + ptr ++; + while (*ptr && *ptr != '@') + ptr ++; + + if (!*ptr) + return; + } + else if (!strncmp(ptr, "@code ", 6)) + { + for (ptr += 6; isspace(*ptr & 255); ptr ++); + + for (start = ptr, ptr ++; *ptr && *ptr != '@'; ptr ++); + + if (*ptr) + *ptr = '\0'; + else + ptr --; + + if (element && *element) + fprintf(out, "%s", start); + else if (element) + fputs(start, out); + else + fprintf(out, "\\fB%s\\fR", start); + } + else if (!strncmp(ptr, "@link ", 6)) + { + for (ptr += 6; isspace(*ptr & 255); ptr ++); + + for (start = ptr, ptr ++; *ptr && *ptr != '@'; ptr ++); + + if (*ptr) + *ptr = '\0'; + else + ptr --; + + if (element && *element) + fprintf(out, "%s", start, start); + else if (element) + fputs(start, out); + else + fprintf(out, "\\fI%s\\fR", start); + } + else if (element) + { + if (*ptr == '&') + fputs("&", out); + else if (*ptr == '<') + fputs("<", out); + else if (*ptr == '>') + fputs(">", out); + else if (*ptr == '\"') + fputs(""", out); + else if (*ptr & 128) + { + /* + * Convert UTF-8 to Unicode constant... + */ + + int ch; /* Unicode character */ + + + ch = *ptr & 255; + + if ((ch & 0xe0) == 0xc0) + { + ch = ((ch & 0x1f) << 6) | (ptr[1] & 0x3f); + ptr ++; + } + else if ((ch & 0xf0) == 0xe0) + { + ch = ((((ch * 0x0f) << 6) | (ptr[1] & 0x3f)) << 6) | (ptr[2] & 0x3f); + ptr += 2; + } + + if (ch == 0xa0) + { + /* + * Handle non-breaking space as-is... + */ + + fputs(" ", out); + } + else + fprintf(out, "&#x%x;", ch); + } + else if (*ptr == '\n' && ptr[1] == '\n' && ptr[2] && ptr[2] != '@') + { + fputs("
        \n
        \n", out); + ptr ++; + } + else + putc(*ptr, out); + } + else if (*ptr == '\n' && ptr[1] == '\n' && ptr[2] && ptr[2] != '@') + { + fputs("\n.PP\n", out); + ptr ++; + } + else + { + if (*ptr == '\\' || (*ptr == '.' && col == 0)) + putc('\\', out); + + putc(*ptr, out); + + if (*ptr == '\n') + col = 0; + else + col ++; + } + } + + if (element && *element) + fprintf(out, "\n", element); + else if (!element) + putc('\n', out); +} + + +/* + * 'write_element()' - Write an element's text nodes. + */ + +static void +write_element(FILE *out, /* I - Output file */ + mxml_node_t *doc, /* I - Document tree */ + mxml_node_t *element, /* I - Element to write */ + int mode) /* I - Output mode */ +{ + mxml_node_t *node; /* Current node */ + + + if (!element) + return; + + for (node = element->child; + node; + node = mxmlWalkNext(node, element, MXML_NO_DESCEND)) + if (node->type == MXML_TEXT) + { + if (node->value.text.whitespace) + putc(' ', out); + + if (mode == OUTPUT_HTML && + (mxmlFindElement(doc, doc, "class", "name", node->value.text.string, + MXML_DESCEND) || + mxmlFindElement(doc, doc, "enumeration", "name", + node->value.text.string, MXML_DESCEND) || + mxmlFindElement(doc, doc, "struct", "name", node->value.text.string, + MXML_DESCEND) || + mxmlFindElement(doc, doc, "typedef", "name", node->value.text.string, + MXML_DESCEND) || + mxmlFindElement(doc, doc, "union", "name", node->value.text.string, + MXML_DESCEND))) + { + fputs("value.text.string, mode); + fputs("\">", out); + write_string(out, node->value.text.string, mode); + fputs("", out); + } + else + write_string(out, node->value.text.string, mode); + } + + if (!strcmp(element->value.element.name, "type") && + element->last_child->value.text.string[0] != '*') + putc(' ', out); +} + + +/* + * 'write_file()' - Copy a file to the output. + */ + +static void +write_file(FILE *out, /* I - Output file */ + const char *file) /* I - File to copy */ +{ + FILE *fp; /* Copy file */ + char line[8192]; /* Line from file */ + + + if ((fp = fopen(file, "r")) == NULL) + { + fprintf(stderr, "mxmldoc: Unable to open \"%s\": %s\n", file, + strerror(errno)); + return; + } + + while (fgets(line, sizeof(line), fp)) + fputs(line, out); + + fclose(fp); +} + + +/* + * 'write_function()' - Write documentation for a function. + */ + +static void +write_function(FILE *out, /* I - Output file */ + mxml_node_t *doc, /* I - Document */ + mxml_node_t *function, /* I - Function */ + int level) /* I - Base heading level */ +{ + mxml_node_t *arg, /* Current argument */ + *adesc, /* Description of argument */ + *description, /* Description of function */ + *type, /* Type for argument */ + *node; /* Node in description */ + const char *name, /* Name of function/type */ + *defval; /* Default value */ + char prefix; /* Prefix character */ + char *sep; /* Newline separator */ + + + name = mxmlElementGetAttr(function, "name"); + description = mxmlFindElement(function, function, "description", NULL, + NULL, MXML_DESCEND_FIRST); + + fprintf(out, "%s%s\n", + level, level == 3 ? "function" : "method", + get_comment_info(description), name, name, level); + + if (description) + write_description(out, description, "p", 1); + + fputs("

        \n", out); + + arg = mxmlFindElement(function, function, "returnvalue", NULL, + NULL, MXML_DESCEND_FIRST); + + if (arg) + write_element(out, doc, mxmlFindElement(arg, arg, "type", NULL, + NULL, MXML_DESCEND_FIRST), + OUTPUT_HTML); + else + fputs("void ", out); + + fprintf(out, "%s ", name); + for (arg = mxmlFindElement(function, function, "argument", NULL, NULL, + MXML_DESCEND_FIRST), prefix = '('; + arg; + arg = mxmlFindElement(arg, function, "argument", NULL, NULL, + MXML_NO_DESCEND), prefix = ',') + { + type = mxmlFindElement(arg, arg, "type", NULL, NULL, + MXML_DESCEND_FIRST); + + fprintf(out, "%c
        \n    ", prefix); + if (type->child) + write_element(out, doc, type, OUTPUT_HTML); + + fputs(mxmlElementGetAttr(arg, "name"), out); + if ((defval = mxmlElementGetAttr(arg, "default")) != NULL) + fprintf(out, " %s", defval); + } + + if (prefix == '(') + fputs("(void);

        \n", out); + else + { + fprintf(out, + "
        \n);

        \n" + "Parameters\n" + "
        \n", level + 1, level + 1); + + for (arg = mxmlFindElement(function, function, "argument", NULL, NULL, + MXML_DESCEND_FIRST); + arg; + arg = mxmlFindElement(arg, function, "argument", NULL, NULL, + MXML_NO_DESCEND)) + { + fprintf(out, "
        %s
        \n", mxmlElementGetAttr(arg, "name")); + + adesc = mxmlFindElement(arg, arg, "description", NULL, NULL, + MXML_DESCEND_FIRST); + + write_description(out, adesc, "dd", 1); + write_description(out, adesc, "dd", 0); + } + + fputs("
        \n", out); + } + + arg = mxmlFindElement(function, function, "returnvalue", NULL, + NULL, MXML_DESCEND_FIRST); + + if (arg) + { + fprintf(out, "Return Value\n", level + 1, + level + 1); + + adesc = mxmlFindElement(arg, arg, "description", NULL, NULL, + MXML_DESCEND_FIRST); + + write_description(out, adesc, "p", 1); + write_description(out, adesc, "p", 0); + } + + if (description) + { + for (node = description->child; node; node = node->next) + if (node->value.text.string && + (sep = strstr(node->value.text.string, "\n\n")) != NULL) + { + sep += 2; + if (*sep && strncmp(sep, "@since ", 7) && + strncmp(sep, "@deprecated@", 12)) + break; + } + + if (node) + { + fprintf(out, "Discussion\n", level + 1, + level + 1); + write_description(out, description, "p", 0); + } + } +} + + +/* + * 'write_html()' - Write HTML documentation. + */ + +static void +write_html(const char *section, /* I - Section */ + const char *title, /* I - Title */ + const char *footerfile, /* I - Footer file */ + const char *headerfile, /* I - Header file */ + const char *introfile, /* I - Intro file */ + const char *cssfile, /* I - Stylesheet file */ + const char *framefile, /* I - Framed HTML basename */ + const char *docset, /* I - Documentation set directory */ + const char *docversion, /* I - Documentation set version */ + const char *feedname, /* I - Feed name for doc set */ + const char *feedurl, /* I - Feed URL for doc set */ + mxml_node_t *doc) /* I - XML documentation */ +{ + FILE *out; /* Output file */ + mxml_node_t *function, /* Current function */ + *scut, /* Struct/class/union/typedef */ + *arg, /* Current argument */ + *description, /* Description of function/var */ + *type; /* Type for argument */ + const char *name, /* Name of function/type */ + *defval, /* Default value */ + *basename; /* Base filename for framed output */ + char filename[1024]; /* Current output filename */ + + + if (framefile) + { + /* + * Get the basename of the frame file... + */ + + if ((basename = strrchr(framefile, '/')) != NULL) + basename ++; + else + basename = framefile; + + if (strstr(basename, ".html")) + fputs("mxmldoc: Frame base name should not contain .html extension!\n", + stderr); + + /* + * Create the container HTML file for the frames... + */ + + snprintf(filename, sizeof(filename), "%s.html", framefile); + + if ((out = fopen(filename, "w")) == NULL) + { + fprintf(stderr, "mxmldoc: Unable to create \"%s\": %s\n", filename, + strerror(errno)); + return; + } + + fputs("\n" + "\n" + "\n" + "\t", out); + write_string(out, title, OUTPUT_HTML); + fputs("\n", out); + + if (section) + fprintf(out, "\t\n", section); + + fputs("\t\n" + "\t\n" + "\n", out); + + fputs("\n", out); + fprintf(out, "\n", basename); + fprintf(out, "\n", basename); + fputs("\n" + "\n" + "<h1>", out); + write_string(out, title, OUTPUT_HTML); + fprintf(out, + "</h1>\n" + "<ul>\n" + "\t<li><a href=\"%s-toc.html\">Table of Contents</a></li>\n" + "\t<li><a href=\"%s-body.html\">Body</a></li>\n" + "</ul>\n", basename, basename); + fputs("\n" + "\n", out); + fclose(out); + + /* + * Write the table-of-contents file... + */ + + snprintf(filename, sizeof(filename), "%s-toc.html", framefile); + + if ((out = fopen(filename, "w")) == NULL) + { + fprintf(stderr, "mxmldoc: Unable to create \"%s\": %s\n", filename, + strerror(errno)); + return; + } + + write_html_head(out, section, title, cssfile); + + snprintf(filename, sizeof(filename), "%s-body.html", basename); + + fputs("
        \n", out); + fprintf(out, "

        ", + filename); + write_string(out, title, OUTPUT_HTML); + fputs("

        \n", out); + + write_toc(out, doc, introfile, filename, 0); + + fputs("
        \n" + "\n" + "\n", out); + fclose(out); + + /* + * Finally, open the body file... + */ + + snprintf(filename, sizeof(filename), "%s-body.html", framefile); + + if ((out = fopen(filename, "w")) == NULL) + { + fprintf(stderr, "mxmldoc: Unable to create \"%s\": %s\n", filename, + strerror(errno)); + return; + } + } + else if (docset) + { + /* + * Create an Xcode documentation set - start by removing any existing + * output directory... + */ + +#ifdef __APPLE__ + const char *id; /* Identifier */ + + + if (!access(docset, 0) && !remove_directory(docset)) + return; + + /* + * Then make the Apple standard bundle directory structure... + */ + + if (mkdir(docset, 0755)) + { + fprintf(stderr, "mxmldoc: Unable to create \"%s\": %s\n", docset, + strerror(errno)); + return; + } + + snprintf(filename, sizeof(filename), "%s/Contents", docset); + if (mkdir(filename, 0755)) + { + fprintf(stderr, "mxmldoc: Unable to create \"%s\": %s\n", filename, + strerror(errno)); + return; + } + + snprintf(filename, sizeof(filename), "%s/Contents/Resources", docset); + if (mkdir(filename, 0755)) + { + fprintf(stderr, "mxmldoc: Unable to create \"%s\": %s\n", filename, + strerror(errno)); + return; + } + + snprintf(filename, sizeof(filename), "%s/Contents/Resources/Documentation", + docset); + if (mkdir(filename, 0755)) + { + fprintf(stderr, "mxmldoc: Unable to create \"%s\": %s\n", filename, + strerror(errno)); + return; + } + + /* + * The Info.plist file, which describes the documentation set... + */ + + if ((id = strrchr(docset, '/')) != NULL) + id ++; + else + id = docset; + + snprintf(filename, sizeof(filename), "%s/Contents/Info.plist", docset); + if ((out = fopen(filename, "w")) == NULL) + { + fprintf(stderr, "mxmldoc: Unable to create \"%s\": %s\n", filename, + strerror(errno)); + return; + } + + fputs("\n" + "\n" + "\n" + "\n" + "\tCFBundleIdentifier\n" + "\t", out); + write_string(out, id, OUTPUT_HTML); + fputs("\n" + "\tCFBundleName\n" + "\t", out); + write_string(out, title, OUTPUT_HTML); + fputs("\n" + "\tCFBundleVersion\n" + "\t", out); + write_string(out, docversion ? docversion : "0.0", OUTPUT_HTML); + fputs("\n" + "\tCFBundleShortVersionString\n" + "\t", out); + write_string(out, docversion ? docversion : "0.0", OUTPUT_HTML); + fputs("\n", out); + + if (feedname) + { + fputs("\tDocSetFeedName\n" + "\t", out); + write_string(out, feedname ? feedname : title, OUTPUT_HTML); + fputs("\n", out); + } + + if (feedurl) + { + fputs("\tDocSetFeedURL\n" + "\t", out); + write_string(out, feedurl, OUTPUT_HTML); + fputs("\n", out); + } + + fputs("\n" + "\n", out); + + fclose(out); + + /* + * Next the Nodes.xml file... + */ + + snprintf(filename, sizeof(filename), "%s/Contents/Resources/Nodes.xml", + docset); + if ((out = fopen(filename, "w")) == NULL) + { + fprintf(stderr, "mxmldoc: Unable to create \"%s\": %s\n", filename, + strerror(errno)); + return; + } + + fputs("\n" + "\n" + "\n" + "\n" + "", out); + write_string(out, title, OUTPUT_HTML); + fputs("\n" + "Documentation/index.html\n" + "\n", out); + + write_toc(out, doc, introfile, NULL, 1); + + fputs("\n" + "\n" + "\n" + "\n", out); + + fclose(out); + + /* + * Then the Tokens.xml file... + */ + + snprintf(filename, sizeof(filename), "%s/Contents/Resources/Tokens.xml", + docset); + if ((out = fopen(filename, "w")) == NULL) + { + fprintf(stderr, "mxmldoc: Unable to create \"%s\": %s\n", filename, + strerror(errno)); + return; + } + + fputs("\n" + "\n", out); + + write_tokens(out, doc, "index.html"); + + fputs("\n", out); + + fclose(out); + + /* + * Finally the HTML file... + */ + + snprintf(filename, sizeof(filename), + "%s/Contents/Resources/Documentation/index.html", + docset); + if ((out = fopen(filename, "w")) == NULL) + { + fprintf(stderr, "mxmldoc: Unable to create \"%s\": %s\n", filename, + strerror(errno)); + return; + } + +#else + fputs("mxmldoc: Xcode documentation sets can only be created on " + "Mac OS X.\n", stderr); + return; +#endif /* __APPLE__ */ + } + else + out = stdout; + + /* + * Standard header... + */ + + write_html_head(out, section, title, cssfile); + + fputs("
        \n", out); + + /* + * Header... + */ + + if (headerfile) + { + /* + * Use custom header... + */ + + write_file(out, headerfile); + } + else + { + /* + * Use standard header... + */ + + fputs("

        ", out); + write_string(out, title, OUTPUT_HTML); + fputs("

        \n", out); + } + + /* + * Table of contents... + */ + + if (!framefile) + write_toc(out, doc, introfile, NULL, 0); + + /* + * Intro... + */ + + if (introfile) + write_file(out, introfile); + + /* + * List of classes... + */ + + if ((scut = find_public(doc, doc, "class")) != NULL) + { + fputs("

        Classes

        \n", out); + + while (scut) + { + write_scu(out, doc, scut); + + scut = find_public(scut, doc, "class"); + } + } + + /* + * List of functions... + */ + + if ((function = find_public(doc, doc, "function")) != NULL) + { + fputs("

        Functions

        \n", out); + + while (function) + { + write_function(out, doc, function, 3); + + function = find_public(function, doc, "function"); + } + } + + /* + * List of types... + */ + + if ((scut = find_public(doc, doc, "typedef")) != NULL) + { + fputs("

        Data Types

        \n", out); + + while (scut) + { + name = mxmlElementGetAttr(scut, "name"); + description = mxmlFindElement(scut, scut, "description", NULL, + NULL, MXML_DESCEND_FIRST); + fprintf(out, "

        %s%s

        \n", + get_comment_info(description), name, name); + + if (description) + write_description(out, description, "p", 1); + + fputs("

        \n" + "typedef ", out); + + type = mxmlFindElement(scut, scut, "type", NULL, NULL, + MXML_DESCEND_FIRST); + + for (type = type->child; type; type = type->next) + if (!strcmp(type->value.text.string, "(")) + break; + else + { + if (type->value.text.whitespace) + putc(' ', out); + + if (mxmlFindElement(doc, doc, "class", "name", + type->value.text.string, MXML_DESCEND) || + mxmlFindElement(doc, doc, "enumeration", "name", + type->value.text.string, MXML_DESCEND) || + mxmlFindElement(doc, doc, "struct", "name", + type->value.text.string, MXML_DESCEND) || + mxmlFindElement(doc, doc, "typedef", "name", + type->value.text.string, MXML_DESCEND) || + mxmlFindElement(doc, doc, "union", "name", + type->value.text.string, MXML_DESCEND)) + { + fputs("value.text.string, OUTPUT_HTML); + fputs("\">", out); + write_string(out, type->value.text.string, OUTPUT_HTML); + fputs("", out); + } + else + write_string(out, type->value.text.string, OUTPUT_HTML); + } + + if (type) + { + /* + * Output function type... + */ + + if (type->prev && type->prev->value.text.string[0] != '*') + putc(' ', out); + + fprintf(out, "(*%s", name); + + for (type = type->next->next; type; type = type->next) + { + if (type->value.text.whitespace) + putc(' ', out); + + if (mxmlFindElement(doc, doc, "class", "name", + type->value.text.string, MXML_DESCEND) || + mxmlFindElement(doc, doc, "enumeration", "name", + type->value.text.string, MXML_DESCEND) || + mxmlFindElement(doc, doc, "struct", "name", + type->value.text.string, MXML_DESCEND) || + mxmlFindElement(doc, doc, "typedef", "name", + type->value.text.string, MXML_DESCEND) || + mxmlFindElement(doc, doc, "union", "name", + type->value.text.string, MXML_DESCEND)) + { + fputs("value.text.string, OUTPUT_HTML); + fputs("\">", out); + write_string(out, type->value.text.string, OUTPUT_HTML); + fputs("", out); + } + else + write_string(out, type->value.text.string, OUTPUT_HTML); + } + + fputs(";\n", out); + } + else + { + type = mxmlFindElement(scut, scut, "type", NULL, NULL, + MXML_DESCEND_FIRST); + if (type->last_child->value.text.string[0] != '*') + putc(' ', out); + + fprintf(out, "%s;\n", name); + } + + fputs("

        \n", out); + + scut = find_public(scut, doc, "typedef"); + } + } + + /* + * List of structures... + */ + + if ((scut = find_public(doc, doc, "struct")) != NULL) + { + fputs("

        Structures

        \n", + out); + + while (scut) + { + write_scu(out, doc, scut); + + scut = find_public(scut, doc, "struct"); + } + } + + /* + * List of unions... + */ + + if ((scut = find_public(doc, doc, "union")) != NULL) + { + fputs("

        Unions

        \n", out); + + while (scut) + { + write_scu(out, doc, scut); + + scut = find_public(scut, doc, "union"); + } + } + + /* + * Variables... + */ + + if ((arg = find_public(doc, doc, "variable")) != NULL) + { + fputs("

        Variables

        \n", + out); + + while (arg) + { + name = mxmlElementGetAttr(arg, "name"); + description = mxmlFindElement(arg, arg, "description", NULL, + NULL, MXML_DESCEND_FIRST); + fprintf(out, "

        %s%s

        \n", + get_comment_info(description), name, name); + + if (description) + write_description(out, description, "p", 1); + + fputs("

        ", out); + + write_element(out, doc, mxmlFindElement(arg, arg, "type", NULL, + NULL, MXML_DESCEND_FIRST), + OUTPUT_HTML); + fputs(mxmlElementGetAttr(arg, "name"), out); + if ((defval = mxmlElementGetAttr(arg, "default")) != NULL) + fprintf(out, " %s", defval); + fputs(";

        \n", out); + + arg = find_public(arg, doc, "variable"); + } + } + + /* + * List of enumerations... + */ + + if ((scut = find_public(doc, doc, "enumeration")) != NULL) + { + fputs("

        Constants

        \n", + out); + + while (scut) + { + name = mxmlElementGetAttr(scut, "name"); + description = mxmlFindElement(scut, scut, "description", NULL, + NULL, MXML_DESCEND_FIRST); + fprintf(out, "

        %s%s

        \n", + get_comment_info(description), name, name); + + if (description) + write_description(out, description, "p", 1); + + fputs("

        Constants

        \n" + "
        \n", out); + + for (arg = mxmlFindElement(scut, scut, "constant", NULL, NULL, + MXML_DESCEND_FIRST); + arg; + arg = mxmlFindElement(arg, scut, "constant", NULL, NULL, + MXML_NO_DESCEND)) + { + description = mxmlFindElement(arg, arg, "description", NULL, + NULL, MXML_DESCEND_FIRST); + fprintf(out, "
        %s %s
        \n", + mxmlElementGetAttr(arg, "name"), get_comment_info(description)); + + write_description(out, description, "dd", 1); + write_description(out, description, "dd", 0); + } + + fputs("
        \n", out); + + scut = find_public(scut, doc, "enumeration"); + } + } + + /* + * Footer... + */ + + if (footerfile) + { + /* + * Use custom footer... + */ + + write_file(out, footerfile); + } + + fputs("
        \n" + "\n" + "\n", out); + + /* + * Close output file as needed... + */ + + if (out != stdout) + fclose(out); + +#ifdef __APPLE__ + /* + * When generating document sets, run the docsetutil program to index it... + */ + + if (docset) + { + const char *args[4]; /* Argument array */ + pid_t pid; /* Process ID */ + int status; /* Exit status */ + + + args[0] = "/Developer/usr/bin/docsetutil"; + args[1] = "index"; + args[2] = docset; + args[3] = NULL; + + if (posix_spawn(&pid, args[0], NULL, NULL, (char **)args, environ)) + { + fprintf(stderr, "mxmldoc: Unable to index documentation set \"%s\": %s\n", + docset, strerror(errno)); + } + else + { + while (wait(&status) != pid); + + if (status) + { + if (WIFEXITED(status)) + fprintf(stderr, "mxmldoc: docsetutil exited with status %d\n", + WEXITSTATUS(status)); + else + fprintf(stderr, "mxmldoc: docsetutil crashed with signal %d\n", + WTERMSIG(status)); + } + else + { + /* + * Remove unneeded temporary XML files... + */ + + snprintf(filename, sizeof(filename), "%s/Contents/Resources/Nodes.xml", + docset); + unlink(filename); + + snprintf(filename, sizeof(filename), "%s/Contents/Resources/Tokens.xml", + docset); + unlink(filename); + } + } + } +#endif /* __APPLE__ */ +} + + +/* + * 'write_html_head()' - Write the standard HTML header. + */ + +static void +write_html_head(FILE *out, /* I - Output file */ + const char *section, /* I - Section */ + const char *title, /* I - Title */ + const char *cssfile) /* I - Stylesheet */ +{ + fputs("\n" + "\n", out); + + if (section) + fprintf(out, "\n", section); + + fputs("\n" + "\t", out); + write_string(out, title, OUTPUT_HTML); + fputs("\t\n", out); + + if (section) + fprintf(out, "\t\n", section); + + fputs("\t\n" + "\t\n" + "\n" + "\n" + "\n", out); +} + + +/* + * 'write_man()' - Write manpage documentation. + */ + +static void +write_man(const char *man_name, /* I - Name of manpage */ + const char *section, /* I - Section */ + const char *title, /* I - Title */ + const char *footerfile, /* I - Footer file */ + const char *headerfile, /* I - Header file */ + const char *introfile, /* I - Intro file */ + mxml_node_t *doc) /* I - XML documentation */ +{ + int i; /* Looping var */ + mxml_node_t *function, /* Current function */ + *scut, /* Struct/class/union/typedef */ + *arg, /* Current argument */ + *description, /* Description of function/var */ + *type; /* Type for argument */ + const char *name, /* Name of function/type */ + *cname, /* Class name */ + *defval, /* Default value */ + *parent; /* Parent class */ + int inscope; /* Variable/method scope */ + char prefix; /* Prefix character */ + time_t curtime; /* Current time */ + struct tm *curdate; /* Current date */ + char buffer[1024]; /* String buffer */ + static const char * const scopes[] = /* Scope strings */ + { + "private", + "protected", + "public" + }; + + + /* + * Standard man page... + */ + + curtime = time(NULL); + curdate = localtime(&curtime); + strftime(buffer, sizeof(buffer), "%x", curdate); + + printf(".TH %s %s \"%s\" \"%s\" \"%s\"\n", man_name, section ? section : "3", + title ? title : "", buffer, title ? title : ""); + + /* + * Header... + */ + + if (headerfile) + { + /* + * Use custom header... + */ + + write_file(stdout, headerfile); + } + else + { + /* + * Use standard header... + */ + + puts(".SH NAME"); + printf("%s \\- %s\n", man_name, title ? title : man_name); + } + + /* + * Intro... + */ + + if (introfile) + write_file(stdout, introfile); + + /* + * List of classes... + */ + + if (find_public(doc, doc, "class")) + { + puts(".SH CLASSES"); + + for (scut = find_public(doc, doc, "class"); + scut; + scut = find_public(scut, doc, "class")) + { + cname = mxmlElementGetAttr(scut, "name"); + description = mxmlFindElement(scut, scut, "description", NULL, + NULL, MXML_DESCEND_FIRST); + printf(".SS %s\n", cname); + + write_description(stdout, description, NULL, 1); + + printf(".PP\n" + ".nf\n" + "class %s", cname); + if ((parent = mxmlElementGetAttr(scut, "parent")) != NULL) + printf(" %s", parent); + puts("\n{"); + + for (i = 0; i < 3; i ++) + { + inscope = 0; + + for (arg = mxmlFindElement(scut, scut, "variable", "scope", scopes[i], + MXML_DESCEND_FIRST); + arg; + arg = mxmlFindElement(arg, scut, "variable", "scope", scopes[i], + MXML_NO_DESCEND)) + { + if (!inscope) + { + inscope = 1; + printf(" %s:\n", scopes[i]); + } + + printf(" "); + write_element(stdout, doc, mxmlFindElement(arg, arg, "type", NULL, + NULL, MXML_DESCEND_FIRST), + OUTPUT_MAN); + printf("%s;\n", mxmlElementGetAttr(arg, "name")); + } + + for (function = mxmlFindElement(scut, scut, "function", "scope", + scopes[i], MXML_DESCEND_FIRST); + function; + function = mxmlFindElement(function, scut, "function", "scope", + scopes[i], MXML_NO_DESCEND)) + { + if (!inscope) + { + inscope = 1; + printf(" %s:\n", scopes[i]); + } + + name = mxmlElementGetAttr(function, "name"); + + printf(" "); + + arg = mxmlFindElement(function, function, "returnvalue", NULL, + NULL, MXML_DESCEND_FIRST); + + if (arg) + write_element(stdout, doc, mxmlFindElement(arg, arg, "type", NULL, + NULL, MXML_DESCEND_FIRST), + OUTPUT_MAN); + else if (strcmp(cname, name) && strcmp(cname, name + 1)) + fputs("void ", stdout); + + printf("%s", name); + + for (arg = mxmlFindElement(function, function, "argument", NULL, NULL, + MXML_DESCEND_FIRST), prefix = '('; + arg; + arg = mxmlFindElement(arg, function, "argument", NULL, NULL, + MXML_NO_DESCEND), prefix = ',') + { + type = mxmlFindElement(arg, arg, "type", NULL, NULL, + MXML_DESCEND_FIRST); + + putchar(prefix); + if (prefix == ',') + putchar(' '); + + if (type->child) + write_element(stdout, doc, type, OUTPUT_MAN); + fputs(mxmlElementGetAttr(arg, "name"), stdout); + if ((defval = mxmlElementGetAttr(arg, "default")) != NULL) + printf(" %s", defval); + } + + if (prefix == '(') + puts("(void);"); + else + puts(");"); + } + } + + puts("};\n" + ".fi"); + + write_description(stdout, description, NULL, 0); + } + } + + /* + * List of enumerations... + */ + + if (find_public(doc, doc, "enumeration")) + { + puts(".SH ENUMERATIONS"); + + for (scut = find_public(doc, doc, "enumeration"); + scut; + scut = find_public(scut, doc, "enumeration")) + { + name = mxmlElementGetAttr(scut, "name"); + description = mxmlFindElement(scut, scut, "description", NULL, + NULL, MXML_DESCEND_FIRST); + printf(".SS %s\n", name); + + write_description(stdout, description, NULL, 1); + write_description(stdout, description, NULL, 0); + + for (arg = mxmlFindElement(scut, scut, "constant", NULL, NULL, + MXML_DESCEND_FIRST); + arg; + arg = mxmlFindElement(arg, scut, "constant", NULL, NULL, + MXML_NO_DESCEND)) + { + description = mxmlFindElement(arg, arg, "description", NULL, + NULL, MXML_DESCEND_FIRST); + printf(".TP 5\n%s\n.br\n", mxmlElementGetAttr(arg, "name")); + write_description(stdout, description, NULL, 1); + } + } + } + + /* + * List of functions... + */ + + if (find_public(doc, doc, "function")) + { + puts(".SH FUNCTIONS"); + + for (function = find_public(doc, doc, "function"); + function; + function = find_public(function, doc, "function")) + { + name = mxmlElementGetAttr(function, "name"); + description = mxmlFindElement(function, function, "description", NULL, + NULL, MXML_DESCEND_FIRST); + printf(".SS %s\n", name); + + write_description(stdout, description, NULL, 1); + + puts(".PP\n" + ".nf"); + + arg = mxmlFindElement(function, function, "returnvalue", NULL, + NULL, MXML_DESCEND_FIRST); + + if (arg) + write_element(stdout, doc, mxmlFindElement(arg, arg, "type", NULL, + NULL, MXML_DESCEND_FIRST), + OUTPUT_MAN); + else + fputs("void", stdout); + + printf(" %s ", name); + for (arg = mxmlFindElement(function, function, "argument", NULL, NULL, + MXML_DESCEND_FIRST), prefix = '('; + arg; + arg = mxmlFindElement(arg, function, "argument", NULL, NULL, + MXML_NO_DESCEND), prefix = ',') + { + type = mxmlFindElement(arg, arg, "type", NULL, NULL, + MXML_DESCEND_FIRST); + + printf("%c\n ", prefix); + if (type->child) + write_element(stdout, doc, type, OUTPUT_MAN); + fputs(mxmlElementGetAttr(arg, "name"), stdout); + if ((defval = mxmlElementGetAttr(arg, "default")) != NULL) + printf(" %s", defval); + } + + if (prefix == '(') + puts("(void);"); + else + puts("\n);"); + + puts(".fi"); + + write_description(stdout, description, NULL, 0); + } + } + + /* + * List of structures... + */ + + if (find_public(doc, doc, "struct")) + { + puts(".SH STRUCTURES"); + + for (scut = find_public(doc, doc, "struct"); + scut; + scut = find_public(scut, doc, "struct")) + { + cname = mxmlElementGetAttr(scut, "name"); + description = mxmlFindElement(scut, scut, "description", NULL, + NULL, MXML_DESCEND_FIRST); + printf(".SS %s\n", cname); + + write_description(stdout, description, NULL, 1); + + printf(".PP\n" + ".nf\n" + "struct %s\n{\n", cname); + for (arg = mxmlFindElement(scut, scut, "variable", NULL, NULL, + MXML_DESCEND_FIRST); + arg; + arg = mxmlFindElement(arg, scut, "variable", NULL, NULL, + MXML_NO_DESCEND)) + { + printf(" "); + write_element(stdout, doc, mxmlFindElement(arg, arg, "type", NULL, + NULL, MXML_DESCEND_FIRST), + OUTPUT_MAN); + printf("%s;\n", mxmlElementGetAttr(arg, "name")); + } + + for (function = mxmlFindElement(scut, scut, "function", NULL, NULL, + MXML_DESCEND_FIRST); + function; + function = mxmlFindElement(function, scut, "function", NULL, NULL, + MXML_NO_DESCEND)) + { + name = mxmlElementGetAttr(function, "name"); + + printf(" "); + + arg = mxmlFindElement(function, function, "returnvalue", NULL, + NULL, MXML_DESCEND_FIRST); + + if (arg) + write_element(stdout, doc, mxmlFindElement(arg, arg, "type", NULL, + NULL, MXML_DESCEND_FIRST), + OUTPUT_MAN); + else if (strcmp(cname, name) && strcmp(cname, name + 1)) + fputs("void ", stdout); + + fputs(name, stdout); + + for (arg = mxmlFindElement(function, function, "argument", NULL, NULL, + MXML_DESCEND_FIRST), prefix = '('; + arg; + arg = mxmlFindElement(arg, function, "argument", NULL, NULL, + MXML_NO_DESCEND), prefix = ',') + { + type = mxmlFindElement(arg, arg, "type", NULL, NULL, + MXML_DESCEND_FIRST); + + putchar(prefix); + if (prefix == ',') + putchar(' '); + + if (type->child) + write_element(stdout, doc, type, OUTPUT_MAN); + fputs(mxmlElementGetAttr(arg, "name"), stdout); + if ((defval = mxmlElementGetAttr(arg, "default")) != NULL) + printf(" %s", defval); + } + + if (prefix == '(') + puts("(void);"); + else + puts(");"); + } + + puts("};\n" + ".fi"); + + write_description(stdout, description, NULL, 0); + } + } + + /* + * List of types... + */ + + if (find_public(doc, doc, "typedef")) + { + puts(".SH TYPES"); + + for (scut = find_public(doc, doc, "typedef"); + scut; + scut = find_public(scut, doc, "typedef")) + { + name = mxmlElementGetAttr(scut, "name"); + description = mxmlFindElement(scut, scut, "description", NULL, + NULL, MXML_DESCEND_FIRST); + printf(".SS %s\n", name); + + write_description(stdout, description, NULL, 1); + + fputs(".PP\n" + ".nf\n" + "typedef ", stdout); + + type = mxmlFindElement(scut, scut, "type", NULL, NULL, + MXML_DESCEND_FIRST); + + for (type = type->child; type; type = type->next) + if (!strcmp(type->value.text.string, "(")) + break; + else + { + if (type->value.text.whitespace) + putchar(' '); + + write_string(stdout, type->value.text.string, OUTPUT_MAN); + } + + if (type) + { + /* + * Output function type... + */ + + printf(" (*%s", name); + + for (type = type->next->next; type; type = type->next) + { + if (type->value.text.whitespace) + putchar(' '); + + write_string(stdout, type->value.text.string, OUTPUT_MAN); + } + + puts(";"); + } + else + printf(" %s;\n", name); + + puts(".fi"); + + write_description(stdout, description, NULL, 0); + } + } + + /* + * List of unions... + */ + + if (find_public(doc, doc, "union")) + { + puts(".SH UNIONS"); + + for (scut = find_public(doc, doc, "union"); + scut; + scut = find_public(scut, doc, "union")) + { + name = mxmlElementGetAttr(scut, "name"); + description = mxmlFindElement(scut, scut, "description", NULL, + NULL, MXML_DESCEND_FIRST); + printf(".SS %s\n", name); + + write_description(stdout, description, NULL, 1); + + printf(".PP\n" + ".nf\n" + "union %s\n{\n", name); + for (arg = mxmlFindElement(scut, scut, "variable", NULL, NULL, + MXML_DESCEND_FIRST); + arg; + arg = mxmlFindElement(arg, scut, "variable", NULL, NULL, + MXML_NO_DESCEND)) + { + printf(" "); + write_element(stdout, doc, mxmlFindElement(arg, arg, "type", NULL, + NULL, MXML_DESCEND_FIRST), + OUTPUT_MAN); + printf("%s;\n", mxmlElementGetAttr(arg, "name")); + } + + puts("};\n" + ".fi"); + + write_description(stdout, description, NULL, 0); + } + } + + /* + * Variables... + */ + + if (find_public(doc, doc, "variable")) + { + puts(".SH VARIABLES"); + + for (arg = find_public(doc, doc, "variable"); + arg; + arg = find_public(arg, doc, "variable")) + { + name = mxmlElementGetAttr(arg, "name"); + description = mxmlFindElement(arg, arg, "description", NULL, + NULL, MXML_DESCEND_FIRST); + printf(".SS %s\n", name); + + write_description(stdout, description, NULL, 1); + + puts(".PP\n" + ".nf"); + + write_element(stdout, doc, mxmlFindElement(arg, arg, "type", NULL, + NULL, MXML_DESCEND_FIRST), + OUTPUT_MAN); + fputs(mxmlElementGetAttr(arg, "name"), stdout); + if ((defval = mxmlElementGetAttr(arg, "default")) != NULL) + printf(" %s", defval); + puts(";\n" + ".fi"); + + write_description(stdout, description, NULL, 0); + } + } + + if (footerfile) + { + /* + * Use custom footer... + */ + + write_file(stdout, footerfile); + } +} + + +/* + * 'write_scu()' - Write a structure, class, or union. + */ + +static void +write_scu(FILE *out, /* I - Output file */ + mxml_node_t *doc, /* I - Document */ + mxml_node_t *scut) /* I - Structure, class, or union */ +{ + int i; /* Looping var */ + mxml_node_t *function, /* Current function */ + *arg, /* Current argument */ + *description, /* Description of function/var */ + *type; /* Type for argument */ + const char *name, /* Name of function/type */ + *cname, /* Class name */ + *defval, /* Default value */ + *parent, /* Parent class */ + *scope; /* Scope for variable/function */ + int inscope, /* Variable/method scope */ + maxscope; /* Maximum scope */ + char prefix; /* Prefix character */ + static const char * const scopes[] = /* Scope strings */ + { + "private", + "protected", + "public" + }; + + + cname = mxmlElementGetAttr(scut, "name"); + description = mxmlFindElement(scut, scut, "description", NULL, + NULL, MXML_DESCEND_FIRST); + + fprintf(out, "

        %s%s

        \n", + scut->value.element.name, get_comment_info(description), cname, + cname); + + if (description) + write_description(out, description, "p", 1); + + fprintf(out, "

        %s %s", scut->value.element.name, cname); + if ((parent = mxmlElementGetAttr(scut, "parent")) != NULL) + fprintf(out, " %s", parent); + fputs(" {
        \n", out); + + maxscope = !strcmp(scut->value.element.name, "class") ? 3 : 1; + + for (i = 0; i < maxscope; i ++) + { + inscope = maxscope == 1; + + for (arg = mxmlFindElement(scut, scut, "variable", NULL, NULL, + MXML_DESCEND_FIRST); + arg; + arg = mxmlFindElement(arg, scut, "variable", NULL, NULL, + MXML_NO_DESCEND)) + { + if (maxscope > 1 && + ((scope = mxmlElementGetAttr(arg, "scope")) == NULL || + strcmp(scope, scopes[i]))) + continue; + + if (!inscope) + { + inscope = 1; + fprintf(out, "  %s:
        \n", scopes[i]); + } + + fputs("    ", out); + write_element(out, doc, mxmlFindElement(arg, arg, "type", NULL, + NULL, MXML_DESCEND_FIRST), + OUTPUT_HTML); + fprintf(out, "%s;
        \n", mxmlElementGetAttr(arg, "name")); + } + + for (function = mxmlFindElement(scut, scut, "function", NULL, NULL, + MXML_DESCEND_FIRST); + function; + function = mxmlFindElement(function, scut, "function", NULL, NULL, + MXML_NO_DESCEND)) + { + if (maxscope > 1 && + ((scope = mxmlElementGetAttr(arg, "scope")) == NULL || + strcmp(scope, scopes[i]))) + continue; + + if (!inscope) + { + inscope = 1; + fprintf(out, "  %s:
        \n", scopes[i]); + } + + name = mxmlElementGetAttr(function, "name"); + + fputs("    ", out); + + arg = mxmlFindElement(function, function, "returnvalue", NULL, + NULL, MXML_DESCEND_FIRST); + + if (arg) + write_element(out, doc, mxmlFindElement(arg, arg, "type", NULL, + NULL, MXML_DESCEND_FIRST), + OUTPUT_HTML); + else if (strcmp(cname, name) && strcmp(cname, name + 1)) + fputs("void ", out); + + fprintf(out, "%s", cname, name, name); + + for (arg = mxmlFindElement(function, function, "argument", NULL, NULL, + MXML_DESCEND_FIRST), prefix = '('; + arg; + arg = mxmlFindElement(arg, function, "argument", NULL, NULL, + MXML_NO_DESCEND), prefix = ',') + { + type = mxmlFindElement(arg, arg, "type", NULL, NULL, + MXML_DESCEND_FIRST); + + putc(prefix, out); + if (prefix == ',') + putc(' ', out); + + if (type->child) + write_element(out, doc, type, OUTPUT_HTML); + + fputs(mxmlElementGetAttr(arg, "name"), out); + if ((defval = mxmlElementGetAttr(arg, "default")) != NULL) + fprintf(out, " %s", defval); + } + + if (prefix == '(') + fputs("(void);
        \n", out); + else + fputs(");
        \n", out); + } + } + + fputs("};

        \n" + "

        Members

        \n" + "
        \n", out); + + for (arg = mxmlFindElement(scut, scut, "variable", NULL, NULL, + MXML_DESCEND_FIRST); + arg; + arg = mxmlFindElement(arg, scut, "variable", NULL, NULL, + MXML_NO_DESCEND)) + { + description = mxmlFindElement(arg, arg, "description", NULL, + NULL, MXML_DESCEND_FIRST); + + fprintf(out, "
        %s %s
        \n", + mxmlElementGetAttr(arg, "name"), get_comment_info(description)); + + write_description(out, description, "dd", 1); + write_description(out, description, "dd", 0); + } + + fputs("
        \n", out); + + for (function = mxmlFindElement(scut, scut, "function", NULL, NULL, + MXML_DESCEND_FIRST); + function; + function = mxmlFindElement(function, scut, "function", NULL, NULL, + MXML_NO_DESCEND)) + { + write_function(out, doc, function, 4); + } +} + + +/* + * 'write_string()' - Write a string, quoting HTML special chars as needed. + */ + +static void +write_string(FILE *out, /* I - Output file */ + const char *s, /* I - String to write */ + int mode) /* I - Output mode */ +{ + switch (mode) + { + case OUTPUT_HTML : + case OUTPUT_XML : + while (*s) + { + if (*s == '&') + fputs("&", out); + else if (*s == '<') + fputs("<", out); + else if (*s == '>') + fputs(">", out); + else if (*s == '\"') + fputs(""", out); + else if (*s & 128) + { + /* + * Convert UTF-8 to Unicode constant... + */ + + int ch; /* Unicode character */ + + + ch = *s & 255; + + if ((ch & 0xe0) == 0xc0) + { + ch = ((ch & 0x1f) << 6) | (s[1] & 0x3f); + s ++; + } + else if ((ch & 0xf0) == 0xe0) + { + ch = ((((ch * 0x0f) << 6) | (s[1] & 0x3f)) << 6) | (s[2] & 0x3f); + s += 2; + } + + if (ch == 0xa0) + { + /* + * Handle non-breaking space as-is... + */ + + fputs(" ", out); + } + else + fprintf(out, "&#x%x;", ch); + } + else + putc(*s, out); + + s ++; + } + break; + + case OUTPUT_MAN : + while (*s) + { + if (*s == '\\' || *s == '-') + putc('\\', out); + + putc(*s++, out); + } + break; + } +} + + +/* + * 'write_toc()' - Write a table-of-contents. + */ + +static void +write_toc(FILE *out, /* I - Output file */ + mxml_node_t *doc, /* I - Document */ + const char *introfile, /* I - Introduction file */ + const char *target, /* I - Target name */ + int xml) /* I - Write XML nodes? */ +{ + FILE *fp; /* Intro file */ + mxml_node_t *function, /* Current function */ + *scut, /* Struct/class/union/typedef */ + *arg, /* Current argument */ + *description; /* Description of function/var */ + const char *name, /* Name of function/type */ + *targetattr; /* Target attribute, if any */ + int xmlid = 1; /* Current XML node ID */ + + + /* + * If target is set, it is the frame file that contains the body. + * Otherwise, we are creating a single-file... + */ + + if (target) + targetattr = " target=\"body\""; + else + targetattr = ""; + + /* + * The table-of-contents is a nested unordered list. Start by + * reading any intro file to see if there are any headings there. + */ + + if (!xml) + fputs("

        Contents

        \n" + "
          \n", out); + + if (introfile && (fp = fopen(introfile, "r")) != NULL) + { + char line[8192], /* Line from file */ + *ptr, /* Pointer in line */ + *end, /* End of line */ + *anchor, /* Anchor name */ + quote, /* Quote character for value */ + level = '2', /* Current heading level */ + newlevel; /* New heading level */ + int inelement; /* In an element? */ + + + while (fgets(line, sizeof(line), fp)) + { + /* + * See if this line has a heading... + */ + + if ((ptr = strstr(line, "') + inelement = 0; + + *ptr++ = '\0'; + } + + /* + * Write text until we see ""... + */ + + if (xml) + { + if (newlevel < level) + fputs("\n" + "\n", out); + else if (newlevel > level && newlevel == '3') + fputs("\n", out); + else if (xmlid > 1) + fputs("\n", out); + + level = newlevel; + + fprintf(out, "\n" + "Documentation/index.html\n" + "%s\n" + "", xmlid ++, anchor); + + quote = 0; + + while (*ptr) + { + if (inelement) + { + if (*ptr == quote) + quote = 0; + else if (*ptr == '>') + inelement = 0; + else if (*ptr == '\'' || *ptr == '\"') + quote = *ptr; + } + else if (*ptr == '<') + { + if (!strncmp(ptr, "", 4) || !strncmp(ptr, "", 4)) + break; + + inelement = 1; + } + else + putc(*ptr, out); + + ptr ++; + } + + fputs("\n", out); + } + else + { + if (newlevel < level) + fputs("\n" + "
        \n", out); + else if (newlevel > level) + fputs("\n", out); + } + } + + fclose(fp); + } + + /* + * Next the classes... + */ + + if ((scut = find_public(doc, doc, "class")) != NULL) + { + if (xml) + fprintf(out, "\n" + "Documentation/index.html\n" + "CLASSES\n" + "Classes\n" + "\n", xmlid ++); + else + fprintf(out, "
      1. Classes" + "
          \n", + target ? target : "", targetattr); + + while (scut) + { + name = mxmlElementGetAttr(scut, "name"); + description = mxmlFindElement(scut, scut, "description", + NULL, NULL, MXML_DESCEND_FIRST); + + if (xml) + { + fprintf(out, "\n" + "Documentation/index.html\n" + "%s\n" + "%s\n" + "\n", xmlid ++, name, name); + } + else + { + fprintf(out, "\t
        • %s
          • \n", name); + } + + scut = find_public(scut, doc, "class"); + } + + if (xml) + fputs("\n", out); + else + fputs("
        2. \n", out); + } + + /* + * Functions... + */ + + if ((function = find_public(doc, doc, "function")) != NULL) + { + if (xml) + fprintf(out, "\n" + "Documentation/index.html\n" + "FUNCTIONS\n" + "Functions\n" + "\n", xmlid ++); + else + fprintf(out, "
      2. Functions" + "
          \n", target ? target : "", targetattr); + + while (function) + { + name = mxmlElementGetAttr(function, "name"); + description = mxmlFindElement(function, function, "description", + NULL, NULL, MXML_DESCEND_FIRST); + + if (xml) + { + fprintf(out, "\n" + "Documentation/index.html\n" + "%s\n" + "%s\n" + "\n", xmlid ++, name, name); + } + else + { + fprintf(out, "\t
        • %s
          • \n", name); + } + + function = find_public(function, doc, "function"); + } + + if (xml) + fputs("\n", out); + else + fputs("
        3. \n", out); + } + + /* + * Data types... + */ + + if ((scut = find_public(doc, doc, "typedef")) != NULL) + { + if (xml) + fprintf(out, "\n" + "Documentation/index.html\n" + "TYPES\n" + "Data Types\n" + "\n", xmlid ++); + else + fprintf(out, "
      3. Data Types" + "
          \n", target ? target : "", targetattr); + + while (scut) + { + name = mxmlElementGetAttr(scut, "name"); + description = mxmlFindElement(scut, scut, "description", + NULL, NULL, MXML_DESCEND_FIRST); + + if (xml) + { + fprintf(out, "\n" + "Documentation/index.html\n" + "%s\n" + "%s\n" + "\n", xmlid ++, name, name); + } + else + { + fprintf(out, "\t
        • %s
          • \n", name); + } + + scut = find_public(scut, doc, "typedef"); + } + + if (xml) + fputs("\n", out); + else + fputs("
        4. \n", out); + } + + /* + * Structures... + */ + + if ((scut = find_public(doc, doc, "struct")) != NULL) + { + if (xml) + fprintf(out, "\n" + "Documentation/index.html\n" + "STRUCTURES\n" + "Structures\n" + "\n", xmlid ++); + else + fprintf(out, "
      4. Structures" + "
          \n", target ? target : "", targetattr); + + while (scut) + { + name = mxmlElementGetAttr(scut, "name"); + description = mxmlFindElement(scut, scut, "description", + NULL, NULL, MXML_DESCEND_FIRST); + + if (xml) + { + fprintf(out, "\n" + "Documentation/index.html\n" + "%s\n" + "%s\n" + "\n", xmlid ++, name, name); + } + else + { + fprintf(out, "\t
        • %s
          • \n", name); + } + + scut = find_public(scut, doc, "struct"); + } + + if (xml) + fputs("\n", out); + else + fputs("
        5. \n", out); + } + + /* + * Unions... + */ + + if ((scut = find_public(doc, doc, "union")) != NULL) + { + if (xml) + fprintf(out, "\n" + "Documentation/index.html\n" + "UNIONS\n" + "Unions\n" + "\n", xmlid ++); + else + fprintf(out, + "
      5. Unions
          \n", + target ? target : "", targetattr); + + while (scut) + { + name = mxmlElementGetAttr(scut, "name"); + description = mxmlFindElement(scut, scut, "description", + NULL, NULL, MXML_DESCEND_FIRST); + + if (xml) + { + fprintf(out, "\n" + "Documentation/index.html\n" + "%s\n" + "%s\n" + "\n", xmlid ++, name, name); + } + else + { + fprintf(out, "\t
        • %s
          • \n", name); + } + + scut = find_public(scut, doc, "union"); + } + + if (xml) + fputs("\n", out); + else + fputs("
        6. \n", out); + } + + /* + * Globals variables... + */ + + if ((arg = find_public(doc, doc, "variable")) != NULL) + { + if (xml) + fprintf(out, "\n" + "Documentation/index.html\n" + "VARIABLES\n" + "Variables\n" + "\n", xmlid ++); + else + fprintf(out, "
      6. Variables" + "
          \n", target ? target : "", targetattr); + + while (arg) + { + name = mxmlElementGetAttr(arg, "name"); + description = mxmlFindElement(arg, arg, "description", + NULL, NULL, MXML_DESCEND_FIRST); + + if (xml) + { + fprintf(out, "\n" + "Documentation/index.html\n" + "%s\n" + "%s\n" + "\n", xmlid ++, name, name); + } + else + { + fprintf(out, "\t
        • %s
          • \n", name); + } + + arg = find_public(arg, doc, "variable"); + } + + if (xml) + fputs("\n", out); + else + fputs("
        7. \n", out); + } + + /* + * Enumerations/constants... + */ + + if ((scut = find_public(doc, doc, "enumeration")) != NULL) + { + if (xml) + fprintf(out, "\n" + "Documentation/index.html\n" + "ENUMERATIONS\n" + "Constants\n" + "\n", xmlid ++); + else + fprintf(out, "
      7. Constants" + "
          \n", target ? target : "", targetattr); + + while (scut) + { + name = mxmlElementGetAttr(scut, "name"); + description = mxmlFindElement(scut, scut, "description", + NULL, NULL, MXML_DESCEND_FIRST); + + if (xml) + { + fprintf(out, "\n" + "Documentation/index.html\n" + "%s\n" + "%s\n" + "\n", xmlid ++, name, name); + } + else + { + fprintf(out, "\t
        • %s
          • \n", name); + } + + scut = find_public(scut, doc, "enumeration"); + } + + if (xml) + fputs("\n", out); + else + fputs("
        8. \n", out); + } + + /* + * Close out the HTML table-of-contents list as needed... + */ + + if (!xml) + fputs("
\n", out); +} + + +/* + * 'write_tokens()' - Write nodes for all APIs. + */ + +static void +write_tokens(FILE *out, /* I - Output file */ + mxml_node_t *doc, /* I - Document */ + const char *path) /* I - Path to help file */ +{ + mxml_node_t *function, /* Current function */ + *scut, /* Struct/class/union/typedef */ + *arg, /* Current argument */ + *description, /* Description of function/var */ + *type, /* Type node */ + *node; /* Current child node */ + const char *name, /* Name of function/type */ + *cename, /* Current class/enum name */ + *defval; /* Default value for argument */ + char prefix; /* Prefix for declarations */ + + + /* + * Classes... + */ + + if ((scut = find_public(doc, doc, "class")) != NULL) + { + while (scut) + { + cename = mxmlElementGetAttr(scut, "name"); + description = mxmlFindElement(scut, scut, "description", + NULL, NULL, MXML_DESCEND_FIRST); + + fprintf(out, "\n" + "Documentation/%s\n" + "%s\n" + "//apple_ref/cpp/cl/%s\n" + "", path, cename, cename); + write_description(out, description, "", 1); + fputs("\n" + "\n", out); + + if ((function = find_public(scut, scut, "function")) != NULL) + { + while (function) + { + name = mxmlElementGetAttr(function, "name"); + description = mxmlFindElement(function, function, "description", + NULL, NULL, MXML_DESCEND_FIRST); + + fprintf(out, "\n" + "Documentation/%s\n" + "%s.%s\n" + "//apple_ref/cpp/clm/%s/%s", path, + cename, name, cename, name); + + arg = mxmlFindElement(function, function, "returnvalue", NULL, + NULL, MXML_DESCEND_FIRST); + + if (arg && (type = mxmlFindElement(arg, arg, "type", NULL, + NULL, MXML_DESCEND_FIRST)) != NULL) + { + for (node = type->child; node; node = node->next) + fputs(node->value.text.string, out); + } + else if (strcmp(cename, name) && strcmp(cename, name + 1)) + fputs("void", out); + + fputs("/", out); + + for (arg = mxmlFindElement(function, function, "argument", NULL, NULL, + MXML_DESCEND_FIRST), prefix = '('; + arg; + arg = mxmlFindElement(arg, function, "argument", NULL, NULL, + MXML_NO_DESCEND), prefix = ',') + { + type = mxmlFindElement(arg, arg, "type", NULL, NULL, + MXML_DESCEND_FIRST); + + putc(prefix, out); + + for (node = type->child; node; node = node->next) + fputs(node->value.text.string, out); + + fputs(mxmlElementGetAttr(arg, "name"), out); + } + + if (prefix == '(') + fputs("(void", out); + + fputs(")\n" + "", out); + write_description(out, description, "", 1); + fputs("\n" + "", out); + + arg = mxmlFindElement(function, function, "returnvalue", NULL, + NULL, MXML_DESCEND_FIRST); + + if (arg) + write_element(out, doc, mxmlFindElement(arg, arg, "type", NULL, + NULL, MXML_DESCEND_FIRST), + OUTPUT_XML); + else if (strcmp(cename, name) && strcmp(cename, name + 1)) + fputs("void ", out); + + fputs(name, out); + + for (arg = mxmlFindElement(function, function, "argument", NULL, NULL, + MXML_DESCEND_FIRST), prefix = '('; + arg; + arg = mxmlFindElement(arg, function, "argument", NULL, NULL, + MXML_NO_DESCEND), prefix = ',') + { + type = mxmlFindElement(arg, arg, "type", NULL, NULL, + MXML_DESCEND_FIRST); + + putc(prefix, out); + if (prefix == ',') + putc(' ', out); + + if (type->child) + write_element(out, doc, type, OUTPUT_XML); + + fputs(mxmlElementGetAttr(arg, "name"), out); + if ((defval = mxmlElementGetAttr(arg, "default")) != NULL) + fprintf(out, " %s", defval); + } + + if (prefix == '(') + fputs("(void);", out); + else + fputs(");", out); + + fputs("\n" + "\n", out); + + function = find_public(function, doc, "function"); + } + } + scut = find_public(scut, doc, "class"); + } + } + + /* + * Functions... + */ + + if ((function = find_public(doc, doc, "function")) != NULL) + { + while (function) + { + name = mxmlElementGetAttr(function, "name"); + description = mxmlFindElement(function, function, "description", + NULL, NULL, MXML_DESCEND_FIRST); + + fprintf(out, "\n" + "Documentation/%s\n" + "%s\n" + "//apple_ref/c/func/%s\n" + "", path, name, name); + write_description(out, description, "", 1); + fputs("\n" + "", out); + + arg = mxmlFindElement(function, function, "returnvalue", NULL, + NULL, MXML_DESCEND_FIRST); + + if (arg) + write_element(out, doc, mxmlFindElement(arg, arg, "type", NULL, + NULL, MXML_DESCEND_FIRST), + OUTPUT_XML); + else // if (strcmp(cname, name) && strcmp(cname, name + 1)) + fputs("void ", out); + + fputs(name, out); + + for (arg = mxmlFindElement(function, function, "argument", NULL, NULL, + MXML_DESCEND_FIRST), prefix = '('; + arg; + arg = mxmlFindElement(arg, function, "argument", NULL, NULL, + MXML_NO_DESCEND), prefix = ',') + { + type = mxmlFindElement(arg, arg, "type", NULL, NULL, + MXML_DESCEND_FIRST); + + putc(prefix, out); + if (prefix == ',') + putc(' ', out); + + if (type->child) + write_element(out, doc, type, OUTPUT_XML); + + fputs(mxmlElementGetAttr(arg, "name"), out); + if ((defval = mxmlElementGetAttr(arg, "default")) != NULL) + fprintf(out, " %s", defval); + } + + if (prefix == '(') + fputs("(void);", out); + else + fputs(");", out); + + fputs("\n" + "\n", out); + + function = find_public(function, doc, "function"); + } + } + + /* + * Data types... + */ + + if ((scut = find_public(doc, doc, "typedef")) != NULL) + { + while (scut) + { + name = mxmlElementGetAttr(scut, "name"); + description = mxmlFindElement(scut, scut, "description", + NULL, NULL, MXML_DESCEND_FIRST); + + fprintf(out, "\n" + "Documentation/%s\n" + "%s\n" + "//apple_ref/c/tdef/%s\n" + "", path, name, name); + write_description(out, description, "", 1); + fputs("\n" + "\n", out); + + scut = find_public(scut, doc, "typedef"); + } + } + + /* + * Structures... + */ + + if ((scut = find_public(doc, doc, "struct")) != NULL) + { + while (scut) + { + name = mxmlElementGetAttr(scut, "name"); + description = mxmlFindElement(scut, scut, "description", + NULL, NULL, MXML_DESCEND_FIRST); + + fprintf(out, "\n" + "Documentation/%s\n" + "%s\n" + "//apple_ref/c/tag/%s\n" + "", path, name, name); + write_description(out, description, "", 1); + fputs("\n" + "\n", out); + + scut = find_public(scut, doc, "struct"); + } + } + + /* + * Unions... + */ + + if ((scut = find_public(doc, doc, "union")) != NULL) + { + while (scut) + { + name = mxmlElementGetAttr(scut, "name"); + description = mxmlFindElement(scut, scut, "description", + NULL, NULL, MXML_DESCEND_FIRST); + + fprintf(out, "\n" + "Documentation/%s\n" + "%s\n" + "//apple_ref/c/tag/%s\n" + "", path, name, name); + write_description(out, description, "", 1); + fputs("\n" + "\n", out); + + scut = find_public(scut, doc, "union"); + } + } + + /* + * Globals variables... + */ + + if ((arg = find_public(doc, doc, "variable")) != NULL) + { + while (arg) + { + name = mxmlElementGetAttr(arg, "name"); + description = mxmlFindElement(arg, arg, "description", + NULL, NULL, MXML_DESCEND_FIRST); + + fprintf(out, "\n" + "Documentation/%s\n" + "%s\n" + "//apple_ref/c/data/%s\n" + "", path, name, name); + write_description(out, description, "", 1); + fputs("\n" + "\n", out); + + arg = find_public(arg, doc, "variable"); + } + } + + /* + * Enumerations/constants... + */ + + if ((scut = find_public(doc, doc, "enumeration")) != NULL) + { + while (scut) + { + cename = mxmlElementGetAttr(scut, "name"); + description = mxmlFindElement(scut, scut, "description", + NULL, NULL, MXML_DESCEND_FIRST); + + fprintf(out, "\n" + "Documentation/%s\n" + "%s\n" + "//apple_ref/c/tag/%s\n" + "", path, cename, cename); + write_description(out, description, "", 1); + fputs("\n" + "\n", out); + + for (arg = mxmlFindElement(scut, scut, "constant", NULL, NULL, + MXML_DESCEND_FIRST); + arg; + arg = mxmlFindElement(arg, scut, "constant", NULL, NULL, + MXML_NO_DESCEND)) + { + name = mxmlElementGetAttr(arg, "name"); + description = mxmlFindElement(arg, arg, "description", NULL, + NULL, MXML_DESCEND_FIRST); + fprintf(out, "\n" + "Documentation/%s\n" + "%s\n" + "//apple_ref/c/econst/%s\n" + "", path, cename, name); + write_description(out, description, "", 1); + fputs("\n" + "\n", out); + } + + scut = find_public(scut, doc, "enumeration"); + } + } +} + + +/* + * 'ws_cb()' - Whitespace callback for saving. + */ + +static const char * /* O - Whitespace string or NULL for none */ +ws_cb(mxml_node_t *node, /* I - Element node */ + int where) /* I - Where value */ +{ + const char *name; /* Name of element */ + int depth; /* Depth of node */ + static const char *spaces = " "; + /* Whitespace (40 spaces) for indent */ + + + name = node->value.element.name; + + switch (where) + { + case MXML_WS_BEFORE_CLOSE : + if (strcmp(name, "argument") && + strcmp(name, "class") && + strcmp(name, "constant") && + strcmp(name, "enumeration") && + strcmp(name, "function") && + strcmp(name, "mxmldoc") && + strcmp(name, "namespace") && + strcmp(name, "returnvalue") && + strcmp(name, "struct") && + strcmp(name, "typedef") && + strcmp(name, "union") && + strcmp(name, "variable")) + return (NULL); + + for (depth = -4; node; node = node->parent, depth += 2); + if (depth > 40) + return (spaces); + else if (depth < 2) + return (NULL); + else + return (spaces + 40 - depth); + + case MXML_WS_AFTER_CLOSE : + return ("\n"); + + case MXML_WS_BEFORE_OPEN : + for (depth = -4; node; node = node->parent, depth += 2); + if (depth > 40) + return (spaces); + else if (depth < 2) + return (NULL); + else + return (spaces + 40 - depth); + + default : + case MXML_WS_AFTER_OPEN : + if (strcmp(name, "argument") && + strcmp(name, "class") && + strcmp(name, "constant") && + strcmp(name, "enumeration") && + strcmp(name, "function") && + strcmp(name, "mxmldoc") && + strcmp(name, "namespace") && + strcmp(name, "returnvalue") && + strcmp(name, "struct") && + strcmp(name, "typedef") && + strcmp(name, "union") && + strcmp(name, "variable") && + strncmp(name, "?xml", 4)) + return (NULL); + else + return ("\n"); + } +} + + +/* + * End of "$Id: mxmldoc.c 440 2011-08-11 18:51:26Z mike $". + */ diff --git a/xml/test.xml b/xml/test.xml new file mode 100644 index 0000000..044304e --- /dev/null +++ b/xml/test.xml @@ -0,0 +1,29 @@ + + + + 123 + Now is the time for all good men to come to the aid of their +country. + + + diff --git a/xml/testmxml.c b/xml/testmxml.c new file mode 100644 index 0000000..9bfa498 --- /dev/null +++ b/xml/testmxml.c @@ -0,0 +1,794 @@ +/* + * "$Id: testmxml.c 439 2011-04-13 15:43:32Z mike $" + * + * Test program for Mini-XML, a small XML-like file parsing library. + * + * Copyright 2003-2011 by Michael R Sweet. + * + * These coded instructions, statements, and computer programs are the + * property of Michael R Sweet and are protected by Federal copyright + * law. Distribution and use rights are outlined in the file "COPYING" + * which should have been included with this file. If this file is + * missing or damaged, see the license at: + * + * http://www.minixml.org/ + * + * Contents: + * + * main() - Main entry for test program. + * sax_cb() - SAX callback. + * type_cb() - XML data type callback for mxmlLoadFile()... + * whitespace_cb() - Let the mxmlSaveFile() function know when to insert + * newlines and tabs... + */ + +/* + * Include necessary headers... + */ + +#include "config.h" +#include "mxml.h" +#ifndef WIN32 +# include +#endif /* !WIN32 */ +#include +#ifndef O_BINARY +# define O_BINARY 0 +#endif /* !O_BINARY */ + + +/* + * Globals... + */ + +int event_counts[6]; + + +/* + * Local functions... + */ + +void sax_cb(mxml_node_t *node, mxml_sax_event_t event, void *data); +mxml_type_t type_cb(mxml_node_t *node); +const char *whitespace_cb(mxml_node_t *node, int where); + + +/* + * 'main()' - Main entry for test program. + */ + +int /* O - Exit status */ +main(int argc, /* I - Number of command-line args */ + char *argv[]) /* I - Command-line args */ +{ + int i; /* Looping var */ + FILE *fp; /* File to read */ + int fd; /* File descriptor */ + mxml_node_t *tree, /* XML tree */ + *node; /* Node which should be in test.xml */ + mxml_index_t *ind; /* XML index */ + char buffer[16384]; /* Save string */ + static const char *types[] = /* Strings for node types */ + { + "MXML_ELEMENT", + "MXML_INTEGER", + "MXML_OPAQUE", + "MXML_REAL", + "MXML_TEXT" + }; + + + /* + * Check arguments... + */ + + if (argc != 2) + { + fputs("Usage: testmxml filename.xml\n", stderr); + return (1); + } + + /* + * Test the basic functionality... + */ + + tree = mxmlNewElement(MXML_NO_PARENT, "element"); + + if (!tree) + { + fputs("ERROR: No parent node in basic test!\n", stderr); + return (1); + } + + if (tree->type != MXML_ELEMENT) + { + fprintf(stderr, "ERROR: Parent has type %s (%d), expected MXML_ELEMENT!\n", + tree->type < MXML_ELEMENT || tree->type > MXML_TEXT ? + "UNKNOWN" : types[tree->type], tree->type); + mxmlDelete(tree); + return (1); + } + + if (strcmp(tree->value.element.name, "element")) + { + fprintf(stderr, "ERROR: Parent value is \"%s\", expected \"element\"!\n", + tree->value.element.name); + mxmlDelete(tree); + return (1); + } + + mxmlNewInteger(tree, 123); + mxmlNewOpaque(tree, "opaque"); + mxmlNewReal(tree, 123.4f); + mxmlNewText(tree, 1, "text"); + + mxmlLoadString(tree, "string string string", + MXML_NO_CALLBACK); + mxmlLoadString(tree, "1 2 3", + MXML_INTEGER_CALLBACK); + mxmlLoadString(tree, "1.0 2.0 3.0", + MXML_REAL_CALLBACK); + mxmlLoadString(tree, "opaque opaque opaque", + MXML_OPAQUE_CALLBACK); + mxmlLoadString(tree, "valuevalue2" + "", MXML_OPAQUE_CALLBACK); + + node = tree->child; + + if (!node) + { + fputs("ERROR: No first child node in basic test!\n", stderr); + mxmlDelete(tree); + return (1); + } + + if (node->type != MXML_INTEGER) + { + fprintf(stderr, "ERROR: First child has type %s (%d), expected MXML_INTEGER!\n", + node->type < MXML_ELEMENT || node->type > MXML_TEXT ? + "UNKNOWN" : types[node->type], node->type); + mxmlDelete(tree); + return (1); + } + + if (node->value.integer != 123) + { + fprintf(stderr, "ERROR: First child value is %d, expected 123!\n", + node->value.integer); + mxmlDelete(tree); + return (1); + } + + node = node->next; + + if (!node) + { + fputs("ERROR: No second child node in basic test!\n", stderr); + mxmlDelete(tree); + return (1); + } + + if (node->type != MXML_OPAQUE) + { + fprintf(stderr, "ERROR: Second child has type %s (%d), expected MXML_OPAQUE!\n", + node->type < MXML_ELEMENT || node->type > MXML_TEXT ? + "UNKNOWN" : types[node->type], node->type); + mxmlDelete(tree); + return (1); + } + + if (!node->value.opaque || strcmp(node->value.opaque, "opaque")) + { + fprintf(stderr, "ERROR: Second child value is \"%s\", expected \"opaque\"!\n", + node->value.opaque ? node->value.opaque : "(null)"); + mxmlDelete(tree); + return (1); + } + + node = node->next; + + if (!node) + { + fputs("ERROR: No third child node in basic test!\n", stderr); + mxmlDelete(tree); + return (1); + } + + if (node->type != MXML_REAL) + { + fprintf(stderr, "ERROR: Third child has type %s (%d), expected MXML_REAL!\n", + node->type < MXML_ELEMENT || node->type > MXML_TEXT ? + "UNKNOWN" : types[node->type], node->type); + mxmlDelete(tree); + return (1); + } + + if (node->value.real != 123.4f) + { + fprintf(stderr, "ERROR: Third child value is %f, expected 123.4!\n", + node->value.real); + mxmlDelete(tree); + return (1); + } + + node = node->next; + + if (!node) + { + fputs("ERROR: No fourth child node in basic test!\n", stderr); + mxmlDelete(tree); + return (1); + } + + if (node->type != MXML_TEXT) + { + fprintf(stderr, "ERROR: Fourth child has type %s (%d), expected MXML_TEXT!\n", + node->type < MXML_ELEMENT || node->type > MXML_TEXT ? + "UNKNOWN" : types[node->type], node->type); + mxmlDelete(tree); + return (1); + } + + if (!node->value.text.whitespace || + !node->value.text.string || strcmp(node->value.text.string, "text")) + { + fprintf(stderr, "ERROR: Fourth child value is %d,\"%s\", expected 1,\"text\"!\n", + node->value.text.whitespace, + node->value.text.string ? node->value.text.string : "(null)"); + mxmlDelete(tree); + return (1); + } + + for (i = 0; i < 4; i ++) + { + node = node->next; + + if (!node) + { + fprintf(stderr, "ERROR: No group #%d child node in basic test!\n", i + 1); + mxmlDelete(tree); + return (1); + } + + if (node->type != MXML_ELEMENT) + { + fprintf(stderr, "ERROR: Group child #%d has type %s (%d), expected MXML_ELEMENT!\n", + i + 1, node->type < MXML_ELEMENT || node->type > MXML_TEXT ? + "UNKNOWN" : types[node->type], node->type); + mxmlDelete(tree); + return (1); + } + } + + /* + * Test mxmlFindPath... + */ + + node = mxmlFindPath(tree, "*/two"); + if (!node) + { + fputs("ERROR: Unable to find value for \"*/two\".\n", stderr); + mxmlDelete(tree); + return (1); + } + else if (node->type != MXML_OPAQUE || strcmp(node->value.opaque, "value")) + { + fputs("ERROR: Bad value for \"*/two\".\n", stderr); + mxmlDelete(tree); + return (1); + } + + node = mxmlFindPath(tree, "foo/*/two"); + if (!node) + { + fputs("ERROR: Unable to find value for \"foo/*/two\".\n", stderr); + mxmlDelete(tree); + return (1); + } + else if (node->type != MXML_OPAQUE || strcmp(node->value.opaque, "value")) + { + fputs("ERROR: Bad value for \"foo/*/two\".\n", stderr); + mxmlDelete(tree); + return (1); + } + + node = mxmlFindPath(tree, "foo/bar/one/two"); + if (!node) + { + fputs("ERROR: Unable to find value for \"foo/bar/one/two\".\n", stderr); + mxmlDelete(tree); + return (1); + } + else if (node->type != MXML_OPAQUE || strcmp(node->value.opaque, "value")) + { + fputs("ERROR: Bad value for \"foo/bar/one/two\".\n", stderr); + mxmlDelete(tree); + return (1); + } + + /* + * Test indices... + */ + + ind = mxmlIndexNew(tree, NULL, NULL); + if (!ind) + { + fputs("ERROR: Unable to create index of all nodes!\n", stderr); + mxmlDelete(tree); + return (1); + } + + if (ind->num_nodes != 10) + { + fprintf(stderr, "ERROR: Index of all nodes contains %d " + "nodes; expected 10!\n", ind->num_nodes); + mxmlIndexDelete(ind); + mxmlDelete(tree); + return (1); + } + + mxmlIndexReset(ind); + if (!mxmlIndexFind(ind, "group", NULL)) + { + fputs("ERROR: mxmlIndexFind for \"group\" failed!\n", stderr); + mxmlIndexDelete(ind); + mxmlDelete(tree); + return (1); + } + + mxmlIndexDelete(ind); + + ind = mxmlIndexNew(tree, "group", NULL); + if (!ind) + { + fputs("ERROR: Unable to create index of groups!\n", stderr); + mxmlDelete(tree); + return (1); + } + + if (ind->num_nodes != 4) + { + fprintf(stderr, "ERROR: Index of groups contains %d " + "nodes; expected 4!\n", ind->num_nodes); + mxmlIndexDelete(ind); + mxmlDelete(tree); + return (1); + } + + mxmlIndexReset(ind); + if (!mxmlIndexEnum(ind)) + { + fputs("ERROR: mxmlIndexEnum failed!\n", stderr); + mxmlIndexDelete(ind); + mxmlDelete(tree); + return (1); + } + + mxmlIndexDelete(ind); + + ind = mxmlIndexNew(tree, NULL, "type"); + if (!ind) + { + fputs("ERROR: Unable to create index of type attributes!\n", stderr); + mxmlDelete(tree); + return (1); + } + + if (ind->num_nodes != 3) + { + fprintf(stderr, "ERROR: Index of type attributes contains %d " + "nodes; expected 3!\n", ind->num_nodes); + mxmlIndexDelete(ind); + mxmlDelete(tree); + return (1); + } + + mxmlIndexReset(ind); + if (!mxmlIndexFind(ind, NULL, "string")) + { + fputs("ERROR: mxmlIndexFind for \"string\" failed!\n", stderr); + mxmlIndexDelete(ind); + mxmlDelete(tree); + return (1); + } + + mxmlIndexDelete(ind); + + ind = mxmlIndexNew(tree, "group", "type"); + if (!ind) + { + fputs("ERROR: Unable to create index of elements and attributes!\n", stderr); + mxmlDelete(tree); + return (1); + } + + if (ind->num_nodes != 3) + { + fprintf(stderr, "ERROR: Index of elements and attributes contains %d " + "nodes; expected 3!\n", ind->num_nodes); + mxmlIndexDelete(ind); + mxmlDelete(tree); + return (1); + } + + mxmlIndexReset(ind); + if (!mxmlIndexFind(ind, "group", "string")) + { + fputs("ERROR: mxmlIndexFind for \"string\" failed!\n", stderr); + mxmlIndexDelete(ind); + mxmlDelete(tree); + return (1); + } + + mxmlIndexDelete(ind); + + /* + * Check the mxmlDelete() works properly... + */ + + for (i = 0; i < 9; i ++) + { + if (tree->child) + mxmlDelete(tree->child); + else + { + fprintf(stderr, "ERROR: Child pointer prematurely NULL on child #%d\n", + i + 1); + mxmlDelete(tree); + return (1); + } + } + + if (tree->child) + { + fputs("ERROR: Child pointer not NULL after deleting all children!\n", stderr); + return (1); + } + + if (tree->last_child) + { + fputs("ERROR: Last child pointer not NULL after deleting all children!\n", stderr); + return (1); + } + + mxmlDelete(tree); + + /* + * Open the file... + */ + + if (argv[1][0] == '<') + tree = mxmlLoadString(NULL, argv[1], type_cb); + else if ((fp = fopen(argv[1], "rb")) == NULL) + { + perror(argv[1]); + return (1); + } + else + { + /* + * Read the file... + */ + + tree = mxmlLoadFile(NULL, fp, type_cb); + + fclose(fp); + } + + if (!tree) + { + fputs("Unable to read XML file!\n", stderr); + return (1); + } + + if (!strcmp(argv[1], "test.xml")) + { + /* + * Verify that mxmlFindElement() and indirectly mxmlWalkNext() work + * properly... + */ + + if ((node = mxmlFindElement(tree, tree, "choice", NULL, NULL, + MXML_DESCEND)) == NULL) + { + fputs("Unable to find first element in XML tree!\n", stderr); + mxmlDelete(tree); + return (1); + } + + if (!mxmlFindElement(node, tree, "choice", NULL, NULL, MXML_NO_DESCEND)) + { + fputs("Unable to find second element in XML tree!\n", stderr); + mxmlDelete(tree); + return (1); + } + } + + /* + * Print the XML tree... + */ + + mxmlSaveFile(tree, stdout, whitespace_cb); + + /* + * Save the XML tree to a string and print it... + */ + + if (mxmlSaveString(tree, buffer, sizeof(buffer), whitespace_cb) > 0) + fputs(buffer, stderr); + + /* + * Delete the tree... + */ + + mxmlDelete(tree); + + /* + * Read from/write to file descriptors... + */ + + if (argv[1][0] != '<') + { + /* + * Open the file again... + */ + + if ((fd = open(argv[1], O_RDONLY | O_BINARY)) < 0) + { + perror(argv[1]); + return (1); + } + + /* + * Read the file... + */ + + tree = mxmlLoadFd(NULL, fd, type_cb); + + close(fd); + + /* + * Create filename.xmlfd... + */ + + snprintf(buffer, sizeof(buffer), "%sfd", argv[1]); + + if ((fd = open(buffer, O_WRONLY | O_CREAT | O_TRUNC | O_BINARY, 0666)) < 0) + { + perror(buffer); + mxmlDelete(tree); + return (1); + } + + /* + * Write the file... + */ + + mxmlSaveFd(tree, fd, whitespace_cb); + + close(fd); + + /* + * Delete the tree... + */ + + mxmlDelete(tree); + } + + /* + * Test SAX methods... + */ + + memset(event_counts, 0, sizeof(event_counts)); + + if (argv[1][0] == '<') + mxmlSAXLoadString(NULL, argv[1], type_cb, sax_cb, NULL); + else if ((fp = fopen(argv[1], "rb")) == NULL) + { + perror(argv[1]); + return (1); + } + else + { + /* + * Read the file... + */ + + mxmlSAXLoadFile(NULL, fp, type_cb, sax_cb, NULL); + + fclose(fp); + } + + if (!strcmp(argv[1], "test.xml")) + { + if (event_counts[MXML_SAX_CDATA] != 1) + { + fprintf(stderr, "MXML_SAX_CDATA seen %d times, expected 1 times!\n", + event_counts[MXML_SAX_CDATA]); + return (1); + } + + if (event_counts[MXML_SAX_COMMENT] != 1) + { + fprintf(stderr, "MXML_SAX_COMMENT seen %d times, expected 1 times!\n", + event_counts[MXML_SAX_COMMENT]); + return (1); + } + + if (event_counts[MXML_SAX_DATA] != 60) + { + fprintf(stderr, "MXML_SAX_DATA seen %d times, expected 60 times!\n", + event_counts[MXML_SAX_DATA]); + return (1); + } + + if (event_counts[MXML_SAX_DIRECTIVE] != 1) + { + fprintf(stderr, "MXML_SAX_DIRECTIVE seen %d times, expected 1 times!\n", + event_counts[MXML_SAX_DIRECTIVE]); + return (1); + } + + if (event_counts[MXML_SAX_ELEMENT_CLOSE] != 20) + { + fprintf(stderr, "MXML_SAX_ELEMENT_CLOSE seen %d times, expected 20 times!\n", + event_counts[MXML_SAX_ELEMENT_CLOSE]); + return (1); + } + + if (event_counts[MXML_SAX_ELEMENT_OPEN] != 20) + { + fprintf(stderr, "MXML_SAX_ELEMENT_OPEN seen %d times, expected 20 times!\n", + event_counts[MXML_SAX_ELEMENT_OPEN]); + return (1); + } + } + + /* + * Return... + */ + + return (0); +} + + +/* + * 'sax_cb()' - Process nodes via SAX. + */ + +void +sax_cb(mxml_node_t *node, /* I - Current node */ + mxml_sax_event_t event, /* I - SAX event */ + void *data) /* I - SAX user data */ +{ + /* + * This SAX callback just counts the different events. + */ + + event_counts[event] ++; +} + + +/* + * 'type_cb()' - XML data type callback for mxmlLoadFile()... + */ + +mxml_type_t /* O - Data type */ +type_cb(mxml_node_t *node) /* I - Element node */ +{ + const char *type; /* Type string */ + + + /* + * You can lookup attributes and/or use the element name, hierarchy, etc... + */ + + if ((type = mxmlElementGetAttr(node, "type")) == NULL) + type = node->value.element.name; + + if (!strcmp(type, "integer")) + return (MXML_INTEGER); + else if (!strcmp(type, "opaque") || !strcmp(type, "pre")) + return (MXML_OPAQUE); + else if (!strcmp(type, "real")) + return (MXML_REAL); + else + return (MXML_TEXT); +} + + +/* + * 'whitespace_cb()' - Let the mxmlSaveFile() function know when to insert + * newlines and tabs... + */ + +const char * /* O - Whitespace string or NULL */ +whitespace_cb(mxml_node_t *node, /* I - Element node */ + int where) /* I - Open or close tag? */ +{ + mxml_node_t *parent; /* Parent node */ + int level; /* Indentation level */ + const char *name; /* Name of element */ + static const char *tabs = "\t\t\t\t\t\t\t\t"; + /* Tabs for indentation */ + + + /* + * We can conditionally break to a new line before or after any element. + * These are just common HTML elements... + */ + + name = node->value.element.name; + + if (!strcmp(name, "html") || !strcmp(name, "head") || !strcmp(name, "body") || + !strcmp(name, "pre") || !strcmp(name, "p") || + !strcmp(name, "h1") || !strcmp(name, "h2") || !strcmp(name, "h3") || + !strcmp(name, "h4") || !strcmp(name, "h5") || !strcmp(name, "h6")) + { + /* + * Newlines before open and after close... + */ + + if (where == MXML_WS_BEFORE_OPEN || where == MXML_WS_AFTER_CLOSE) + return ("\n"); + } + else if (!strcmp(name, "dl") || !strcmp(name, "ol") || !strcmp(name, "ul")) + { + /* + * Put a newline before and after list elements... + */ + + return ("\n"); + } + else if (!strcmp(name, "dd") || !strcmp(name, "dt") || !strcmp(name, "li")) + { + /* + * Put a tab before
  • 's,
    's, and
    's, and a newline after them... + */ + + if (where == MXML_WS_BEFORE_OPEN) + return ("\t"); + else if (where == MXML_WS_AFTER_CLOSE) + return ("\n"); + } + else if (!strncmp(name, "?xml", 4)) + { + if (where == MXML_WS_AFTER_OPEN) + return ("\n"); + else + return (NULL); + } + else if (where == MXML_WS_BEFORE_OPEN || + ((!strcmp(name, "choice") || !strcmp(name, "option")) && + where == MXML_WS_BEFORE_CLOSE)) + { + for (level = -1, parent = node->parent; + parent; + level ++, parent = parent->parent); + + if (level > 8) + level = 8; + else if (level < 0) + level = 0; + + return (tabs + 8 - level); + } + else if (where == MXML_WS_AFTER_CLOSE || + ((!strcmp(name, "group") || !strcmp(name, "option") || + !strcmp(name, "choice")) && + where == MXML_WS_AFTER_OPEN)) + return ("\n"); + else if (where == MXML_WS_AFTER_OPEN && !node->child) + return ("\n"); + + /* + * Return NULL for no added whitespace... + */ + + return (NULL); +} + + +/* + * End of "$Id: testmxml.c 439 2011-04-13 15:43:32Z mike $". + */ diff --git a/yajl/COPYING b/yajl/COPYING new file mode 100644 index 0000000..30be349 --- /dev/null +++ b/yajl/COPYING @@ -0,0 +1,13 @@ +Copyright (c) 2007-2014, Lloyd Hilaiel + +Permission to use, copy, modify, and/or distribute this software for any +purpose with or without fee is hereby granted, provided that the above +copyright notice and this permission notice appear in all copies. + +THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES +WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF +MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR +ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES +WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN +ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF +OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. diff --git a/yajl/ChangeLog b/yajl/ChangeLog new file mode 100644 index 0000000..c256386 --- /dev/null +++ b/yajl/ChangeLog @@ -0,0 +1,192 @@ +Argyll: GWG - add JSON comment support +Argyll: GWG - add yajl_tree_get_first() since yajl_tree_get() can't cope with arrays. + +2.1.0 + * @nonodename, @patperry - fixed some compiler warnings + * @yep, @emaste - documentation improvements + * @sgravrock - build fix for NetBSD (and whenever sh != bash) + * @rotty, @brimstone3, @lloyd - allow client to reset generator + * @sgravrock - remove bash dependencies + * @lloyd - add api tests + * @rflynn - remove ruby dependency + * @cloderic - nmake install works on windows + * @shahbag - build fix for qnx + * @breese - debugging improvements + * @lloyd - json_verify supports -s flag for stream processing + * @lloyd - json_reformat supports -s flag for stream processing + +2.0.4 + * @jcekstrom - additional checking in integer parsing + * @jcekstrom - fix a bug in yajl_tree that would cause valid json integersto fail to parse + * @plaguemorin - fix a memory leak in yajl_tree (error strings were being leaked) + * @7AC - reset errno + * @ConradIrwin - include flags to reformatter to allow toggling of escape solidus option + +2.0.3 + * John Stamp generation of a pkgconfig file at build time. + * @robzuber bugfix in yajl_tree_get() + * @lloyd - fix for compilation on 64 bit windows + +2.0.2 + * lth fix typos in yajl_tree.h macros YAJL_IS_INTEGER and YAJL_IS_DOUBLE, + contributed by Artem S Vybornov. + * lth add #ifdef __cplusplus wrappers to yajl_tree to allow proper + usage from many populer C++ compilers. + +2.0.1 + * lth generator flag to allow client to specify they want + escaped solidi '/'. issue #28 + * lth crash fix when yajl_parse() is never called. issue #27 + +2.0.0 + * lth YAJL is now ISC licensed: http://en.wikipedia.org/wiki/ISC_license + * lth 20-35% (osx and linux respectively) parsing performance + improvement attained by tweaking string scanning (idea: @michaelrhanson). + * Florian Forster & lth - yajl_tree interface introduced as a higher level + interface to the parser (eats JSON, poops a memory representation) + * lth require a C99 compiler + * lth integers are now represented with long long (64bit+) on all platforms. + * lth size_t now used throughout to represent buffer lengths, so you can + safely manage buffers greater than 4GB. + * gno semantic improvements to yajl's API regarding partial value parsing and + trailing garbage + * lth new configuration mechanism for yajl, see yajl_config() and + yajl_gen_config() + * gno more allocation checking in more places + * gno remove usage of strtol, replace with custom implementation that cares + not about your locale. + * lth yajl_parse_complete renamed to yajl_complete_parse. + * lth add a switch to validate utf8 strings as they are generated. + * lth tests are a lot quieter in their output. + * lth addition of a little in tree performance benchmark, `perftest` in + perf/perftest.c + +1.0.12 + * Conrad Irwin - Parse null bytes correctly + * Mirek Rusin - fix LLVM warnings + * gno - Don't generate numbers for keys. closes #13 + * lth - various win32 fixes, including build documentation improvements + * John Stamp - Don't export private symbols. + * John Stamp - Install yajl_version.h, not the template. + * John Stamp - Don't use -fPIC for static lib. Cmake will automatically add it for the shared. + * lth 0 fix paths embedded in dylib upon installation on osx. closes #11 + +1.0.11 + * lth remove -Wno-missing-field-initializers for greater gcc compat (3.4.6) + +1.0.10 + * Brian Maher - yajl is now buildable without a c++ compiler present + * Brian Maher - fix header installation on OSX with cmake 2.8.0 installed + * lth & vitali - allow builder to specify alternate lib directory + for installation (i.e. lib64) + * Vitali Lovich - yajl version number now programatically accessible + * lth - prevent cmake from embedding rpaths in binaries. Static linking + makes this unneccesary. + +1.0.9 + * lth - fix inverted logic causing yajl_gen_double() to always fail on + win32 (thanks to Fredrik Kihlander for the report) + +1.0.8 + * Randall E. Barker - move dllexport defnitions so dlls with proper + exports can again be generated on windows + * lth - add yajl_get_bytes_consumed() which allows the client to + determine the offset as an error, as well as determine how + many bytes of an input buffer were consumed. + * lth - fixes to keep "error offset" up to date (like when the + client callback returns 0) + * Brian Maher - allow client to specify a printing function in + generation + +1.0.7 + * lth fix win32 build (isinf and isnan) + +1.0.6 + * lth fix several compiler warnings + * lth fix generation of invalid json from yajl_gen_double + (NaN is not JSON) + * jstamp support for combining short options in tools + * jstamp exit properly on errors from tools + * octo test success no longer depends on integer size + * max fix configure --prefix + +1.0.5 + * lth several performance improvements related to function + inlinin' + +1.0.4 + * lth fix broken utf8 validation for three & four byte represenations. + thanks to http://github.com/brianmario and + http://github.com/technoweenie + +1.0.3 + * lth fix syntax error in cplusplus extern "C" statements for wider + compiler support + +1.0.2 + * lth update doxygen documentation with new sample code, passing NULL + for allocation functions added in 1.0.0 + +1.0.1 + * lth resolve crash in json_reformatter due to incorrectly ordered + parameters. + +1.0.0 + * lth add 'make install' rules, thaks to Andrei Soroker for the + contribution. + * lth client may override allocation routines at generator or parser + allocation time + * tjw add yajl_parse_complete routine to allow client to explicitly + specify end-of-input, solving the "lonely number" case, where + json text consists only of an element with no explicit syntactic + end. + * tjw many new test cases + * tjw cleanup of code for symmetry and ease of reading + * lth integration of patches from Robert Varga which cleanup + compilation warnings on 64 bit linux + +0.4.0 + * lth buffer overflow bug in yajl_gen_double s/%lf/%g/ - thanks to + Eric Bergstrome + * lth yajl_number callback to allow passthrough of arbitrary precision + numbers to client. Thanks to Hatem Nassrat. + * lth yajl_integer now deals in long, instead of long long. This + combined with yajl_number improves compiler compatibility while + maintaining precision. + * lth better ./configure && make experience (still requires cmake and + ruby) + * lth fix handling of special characters hex 0F and 1F in yajl_encode + (thanks to Robert Geiger) + * lth allow leading zeros in exponents (thanks to Hatem Nassrat) + +0.3.0 + * lth doxygen documentation (html & man) generated as part of the + build + * lth many documentation updates. + * lth fix to work with older versions of cmake (don't use LOOSE_LOOP + constructs) + * lth work around different behavior of freebsd 4 scanf. initialize + parameter to scanf to zero. + * lth all tests run 32x with ranging buffer sizes to stress stream + parsing + * lth yajl_test accepts -b option to allow read buffer size to be + set + * lth option to validate UTF8 added to parser (argument in + yajl_parser_cfg) + * lth fix buffer overrun when chunk ends inside \u escaped text + * lth support client cancelation + +0.2.2 + * lth on windows build debug with C7 symbols and no pdb files. + +0.2.1 + * fix yajl_reformat and yajl_verify to work on arbitrarily sized + inputs. + * fix win32 build break, clean up all errors and warnings. + * fix optimized build flags. + +0.2.0 + * optionally support comments in input text + +0.1.0 + * Initial release diff --git a/yajl/Jamfile b/yajl/Jamfile new file mode 100644 index 0000000..d5456a1 --- /dev/null +++ b/yajl/Jamfile @@ -0,0 +1,42 @@ + +# JAM style makefile for yajl + +#PREF_CCFLAGS = $(CCOPTFLAG) ; # Turn optimisation on +PREF_CCFLAGS = $(CCDEBUGFLAG) ; # Debugging flags +#PREF_CCFLAGS = $(CCHEAPDEBUG) ; # Heap Debugging flags +PREF_LINKFLAGS = $(LINKDEBUGFLAG) ; # Link debugging flags + +#Products +Libraries = libyajl ; +Executables = ; +Headers = yajl_common.h yajl_gen.h yajl_parse.h yajl_tree.h ; # API headers + +#Install +#InstallBin $(DESTDIR)$(PREFIX)/bin : $(Executables) ; +#InstallFile $(DESTDIR)$(PREFIX)/h : $(Headers) ; +#InstallLib $(DESTDIR)$(PREFIX)/lib : $(Libraries) ; + +SRC = + yajl.c + yajl_alloc.c + yajl_buf.c + yajl_encode.c + yajl_gen.c + yajl_lex.c + yajl_parser.c + yajl_tree.c + yajl_version.c + ; + +# config parser based on yajl +Library libyajl : $(SRC) ; + +# Link all utilities here with libicc +LINKLIBS = libyajl ; + +# All utils are made from a single source file +MainsFromSources yajl_test.c json_verify.c ; + + + + diff --git a/yajl/README b/yajl/README new file mode 100644 index 0000000..ad61759 --- /dev/null +++ b/yajl/README @@ -0,0 +1,74 @@ +********************************************************************** + This is YAJL 2. For the legacy version of YAJL see + https://github.com/lloyd/yajl/tree/1.x +********************************************************************** + +Welcome to Yet Another JSON Library (YAJL) + +## Why does the world need another C library for parsing JSON? + +Good question. In a review of current C JSON parsing libraries I was +unable to find one that satisfies my requirements. Those are, +0. written in C +1. portable +2. robust -- as close to "crash proof" as possible +3. data representation independent +4. fast +5. generates verbose, useful error messages including context of where + the error occurs in the input text. +6. can parse JSON data off a stream, incrementally +7. simple to use +8. tiny + +Numbers 3, 5, 6, and 7 were particularly hard to find, and were what +caused me to ultimately create YAJL. This document is a tour of some +of the more important aspects of YAJL. + +## YAJL is Free. + +Permissive licensing means you can use it in open source and +commercial products alike without any fees. My request beyond the +licensing is that if you find bugs drop me a email, or better yet, +fork and fix. + +Porting YAJL should be trivial, the implementation is ANSI C. If you +port to new systems I'd love to hear of it and integrate your patches. + +## YAJL is data representation independent. + +BYODR! Many JSON libraries impose a structure based data representation +on you. This is a benefit in some cases and a drawback in others. +YAJL uses callbacks to remain agnostic of the in-memory representation. +So if you wish to build up an in-memory representation, you may do so +using YAJL, but you must bring the code that defines and populates the +in memory structure. + +This also means that YAJL can be used by other (higher level) JSON +libraries if so desired. + +## YAJL supports stream parsing + +This means you do not need to hold the whole JSON representation in +textual form in memory. This makes YAJL ideal for filtering projects, +where you're converting YAJL from one form to another (i.e. XML). The +included JSON pretty printer is an example of such a filter program. + +## YAJL is fast + +Minimal memory copying is performed. YAJL, when possible, returns +pointers into the client provided text (i.e. for strings that have no +embedded escape chars, hopefully the common case). I've put a lot of +effort into profiling and tuning performance, but I have ignored a +couple possible performance improvements to keep the interface clean, +small, and flexible. My hope is that YAJL will perform comparably to +the fastest JSON parser out there. + +YAJL should impose both minimal CPU and memory requirements on your +application. + +## YAJL is tiny. + +Fat free. No whip. + +enjoy, +Lloyd - July, 2007 diff --git a/yajl/Readme.txt b/yajl/Readme.txt new file mode 100644 index 0000000..a4d73ad --- /dev/null +++ b/yajl/Readme.txt @@ -0,0 +1,5 @@ +This is a simplified version of yajl2 + +The directory layout has been simplified, +and it has been fixed to work with a wider range +of compilers. diff --git a/yajl/TODO b/yajl/TODO new file mode 100644 index 0000000..56c3dc0 --- /dev/null +++ b/yajl/TODO @@ -0,0 +1,9 @@ +* add a test for 0x1F bug +* numeric overflow in integers and double +* line and char offsets in the lexer and in error messages +* testing: + a. the permuter + b. some performance comparison against json_checker. +* investigate pull instead of push parsing +* Handle memory allocation failures gracefully +* cygwin/msys support on win32 diff --git a/yajl/afiles b/yajl/afiles new file mode 100644 index 0000000..9292ab8 --- /dev/null +++ b/yajl/afiles @@ -0,0 +1,33 @@ +afiles +Jamfile +Readme.txt +README +COPYING +ChangeLog +TODO +afiles +json_verify.c +yajl.h +yajl.c +yajl_alloc.c +yajl_alloc.h +yajl_buf.c +yajl_buf.h +yajl_bytestack.h +yajl_common.h +yajl_encode.c +yajl_encode.h +yajl_gen.c +yajl_gen.h +yajl_lex.c +yajl_lex.h +yajl_parse.h +yajl_parser.c +yajl_parser.h +yajl_test.c +yajl_test.exe +yajl_test.obj +yajl_tree.c +yajl_tree.h +yajl_version.c +yajl_version.h diff --git a/yajl/json_verify.c b/yajl/json_verify.c new file mode 100644 index 0000000..0cdcadb --- /dev/null +++ b/yajl/json_verify.c @@ -0,0 +1,120 @@ +/* + * Copyright (c) 2007-2014, Lloyd Hilaiel + * + * Permission to use, copy, modify, and/or distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +#include "yajl_parse.h" + +#include +#include +#include + +static void +usage(const char * progname) +{ + fprintf(stderr, "%s: validate json from stdin\n" + "usage: json_verify [options]\n" + " -c allow comments\n" + " -q quiet mode\n" + " -s verify a stream of multiple json entities\n" + " -u allow invalid utf8 inside strings\n", + progname); + exit(1); +} + +int +main(int argc, char ** argv) +{ + yajl_status stat; + size_t rd; + yajl_handle hand; + static unsigned char fileData[65536]; + int quiet = 0; + int retval = 0; + int a = 1; + + /* allocate a parser */ + hand = yajl_alloc(NULL, NULL, NULL); + + /* check arguments.*/ + while ((a < argc) && (argv[a][0] == '-') && (strlen(argv[a]) > 1)) { + unsigned int i; + for ( i=1; i < strlen(argv[a]); i++) { + switch (argv[a][i]) { + case 'q': + quiet = 1; + break; + case 'c': + yajl_config(hand, yajl_allow_comments, 1); + break; + case 'u': + yajl_config(hand, yajl_dont_validate_strings, 1); + break; + case 's': + yajl_config(hand, yajl_allow_multiple_values, 1); + break; + default: + fprintf(stderr, "unrecognized option: '%c'\n\n", argv[a][i]); + usage(argv[0]); + } + } + ++a; + } + if (a < argc) { + usage(argv[0]); + } + + for (;;) { + rd = fread((void *) fileData, 1, sizeof(fileData) - 1, stdin); + + retval = 0; + + if (rd == 0) { + if (!feof(stdin)) { + if (!quiet) { + fprintf(stderr, "error encountered on file read\n"); + } + retval = 1; + } + break; + } + fileData[rd] = 0; + + /* read file data, pass to parser */ + stat = yajl_parse(hand, fileData, rd); + + if (stat != yajl_status_ok) break; + } + + /* parse any remaining buffered data */ + stat = yajl_complete_parse(hand); + + if (stat != yajl_status_ok) + { + if (!quiet) { + unsigned char * str = yajl_get_error(hand, 1, fileData, rd); + fprintf(stderr, "%s", (const char *) str); + yajl_free_error(hand, str); + } + retval = 1; + } + + yajl_free(hand); + + if (!quiet) { + printf("JSON is %s\n", retval ? "invalid" : "valid"); + } + + return retval; +} diff --git a/yajl/yajl.c b/yajl/yajl.c new file mode 100644 index 0000000..4f7d5e5 --- /dev/null +++ b/yajl/yajl.c @@ -0,0 +1,175 @@ +/* + * Copyright (c) 2007-2014, Lloyd Hilaiel + * + * Permission to use, copy, modify, and/or distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +#include "yajl_parse.h" +#include "yajl_lex.h" +#include "yajl_parser.h" +#include "yajl_alloc.h" + +#include +#include +#include +#include + +const char * +yajl_status_to_string(yajl_status stat) +{ + const char * statStr = "unknown"; + switch (stat) { + case yajl_status_ok: + statStr = "ok, no error"; + break; + case yajl_status_client_canceled: + statStr = "client canceled parse"; + break; + case yajl_status_error: + statStr = "parse error"; + break; + } + return statStr; +} + +yajl_handle +yajl_alloc(const yajl_callbacks * callbacks, + yajl_alloc_funcs * afs, + void * ctx) +{ + yajl_handle hand = NULL; + yajl_alloc_funcs afsBuffer; + + /* first order of business is to set up memory allocation routines */ + if (afs != NULL) { + if (afs->malloc == NULL || afs->realloc == NULL || afs->free == NULL) + { + return NULL; + } + } else { + yajl_set_default_alloc_funcs(&afsBuffer); + afs = &afsBuffer; + } + + hand = (yajl_handle) YA_MALLOC(afs, sizeof(struct yajl_handle_t)); + + /* copy in pointers to allocation routines */ + memcpy((void *) &(hand->alloc), (void *) afs, sizeof(yajl_alloc_funcs)); + + hand->callbacks = callbacks; + hand->ctx = ctx; + hand->lexer = NULL; + hand->bytesConsumed = 0; + hand->decodeBuf = yajl_buf_alloc(&(hand->alloc)); + hand->flags = 0; + yajl_bs_init(hand->stateStack, &(hand->alloc)); + yajl_bs_push(hand->stateStack, yajl_state_start); + + return hand; +} + +int +yajl_config(yajl_handle h, yajl_option opt, ...) +{ + int rv = 1; + va_list ap; + va_start(ap, opt); + + switch(opt) { + case yajl_allow_comments: + case yajl_dont_validate_strings: + case yajl_allow_trailing_garbage: + case yajl_allow_multiple_values: + case yajl_allow_partial_values: + if (va_arg(ap, int)) h->flags |= opt; + else h->flags &= ~opt; + break; + default: + rv = 0; + } + va_end(ap); + + return rv; +} + +void +yajl_free(yajl_handle handle) +{ + yajl_bs_free(handle->stateStack); + yajl_buf_free(handle->decodeBuf); + if (handle->lexer) { + yajl_lex_free(handle->lexer); + handle->lexer = NULL; + } + YA_FREE(&(handle->alloc), handle); +} + +yajl_status +yajl_parse(yajl_handle hand, const unsigned char * jsonText, + size_t jsonTextLen) +{ + yajl_status status; + + /* lazy allocation of the lexer */ + if (hand->lexer == NULL) { + hand->lexer = yajl_lex_alloc(&(hand->alloc), + hand->flags & yajl_allow_comments, + !(hand->flags & yajl_dont_validate_strings)); + } + + status = yajl_do_parse(hand, jsonText, jsonTextLen); + return status; +} + + +yajl_status +yajl_complete_parse(yajl_handle hand) +{ + /* The lexer is lazy allocated in the first call to parse. if parse is + * never called, then no data was provided to parse at all. This is a + * "premature EOF" error unless yajl_allow_partial_values is specified. + * allocating the lexer now is the simplest possible way to handle this + * case while preserving all the other semantics of the parser + * (multiple values, partial values, etc). */ + if (hand->lexer == NULL) { + hand->lexer = yajl_lex_alloc(&(hand->alloc), + hand->flags & yajl_allow_comments, + !(hand->flags & yajl_dont_validate_strings)); + } + + return yajl_do_finish(hand); +} + +unsigned char * +yajl_get_error(yajl_handle hand, int verbose, + const unsigned char * jsonText, size_t jsonTextLen) +{ + return yajl_render_error_string(hand, jsonText, jsonTextLen, verbose); +} + +size_t +yajl_get_bytes_consumed(yajl_handle hand) +{ + if (!hand) return 0; + else return hand->bytesConsumed; +} + + +void +yajl_free_error(yajl_handle hand, unsigned char * str) +{ + /* use memory allocation functions if set */ + YA_FREE(&(hand->alloc), str); +} + +/* XXX: add utility routines to parse from file */ diff --git a/yajl/yajl.h b/yajl/yajl.h new file mode 100644 index 0000000..544d119 --- /dev/null +++ b/yajl/yajl.h @@ -0,0 +1,10 @@ + +#ifndef YAJL_H + +#include "yajl_common.h" +#include "yajl_gen.h" +#include "yajl_parse.h" +#include "yajl_tree.h" + +#define YAJL_H +#endif /* YAJL_H */ diff --git a/yajl/yajl_alloc.c b/yajl/yajl_alloc.c new file mode 100644 index 0000000..96ad1d3 --- /dev/null +++ b/yajl/yajl_alloc.c @@ -0,0 +1,52 @@ +/* + * Copyright (c) 2007-2014, Lloyd Hilaiel + * + * Permission to use, copy, modify, and/or distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +/** + * \file yajl_alloc.h + * default memory allocation routines for yajl which use malloc/realloc and + * free + */ + +#include "yajl_alloc.h" +#include + +static void * yajl_internal_malloc(void *ctx, size_t sz) +{ + (void)ctx; + return malloc(sz); +} + +static void * yajl_internal_realloc(void *ctx, void * previous, + size_t sz) +{ + (void)ctx; + return realloc(previous, sz); +} + +static void yajl_internal_free(void *ctx, void * ptr) +{ + (void)ctx; + free(ptr); +} + +void yajl_set_default_alloc_funcs(yajl_alloc_funcs * yaf) +{ + yaf->malloc = yajl_internal_malloc; + yaf->free = yajl_internal_free; + yaf->realloc = yajl_internal_realloc; + yaf->ctx = NULL; +} + diff --git a/yajl/yajl_alloc.h b/yajl/yajl_alloc.h new file mode 100644 index 0000000..496338f --- /dev/null +++ b/yajl/yajl_alloc.h @@ -0,0 +1,34 @@ +/* + * Copyright (c) 2007-2014, Lloyd Hilaiel + * + * Permission to use, copy, modify, and/or distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +/** + * \file yajl_alloc.h + * default memory allocation routines for yajl which use malloc/realloc and + * free + */ + +#ifndef __YAJL_ALLOC_H__ +#define __YAJL_ALLOC_H__ + +#include "yajl_common.h" + +#define YA_MALLOC(afs, sz) (afs)->malloc((afs)->ctx, (sz)) +#define YA_FREE(afs, ptr) (afs)->free((afs)->ctx, (ptr)) +#define YA_REALLOC(afs, ptr, sz) (afs)->realloc((afs)->ctx, (ptr), (sz)) + +void yajl_set_default_alloc_funcs(yajl_alloc_funcs * yaf); + +#endif diff --git a/yajl/yajl_buf.c b/yajl/yajl_buf.c new file mode 100644 index 0000000..1aeafde --- /dev/null +++ b/yajl/yajl_buf.c @@ -0,0 +1,103 @@ +/* + * Copyright (c) 2007-2014, Lloyd Hilaiel + * + * Permission to use, copy, modify, and/or distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +#include "yajl_buf.h" + +#include +#include +#include + +#define YAJL_BUF_INIT_SIZE 2048 + +struct yajl_buf_t { + size_t len; + size_t used; + unsigned char * data; + yajl_alloc_funcs * alloc; +}; + +static +void yajl_buf_ensure_available(yajl_buf buf, size_t want) +{ + size_t need; + + assert(buf != NULL); + + /* first call */ + if (buf->data == NULL) { + buf->len = YAJL_BUF_INIT_SIZE; + buf->data = (unsigned char *) YA_MALLOC(buf->alloc, buf->len); + buf->data[0] = 0; + } + + need = buf->len; + + while (want >= (need - buf->used)) need <<= 1; + + if (need != buf->len) { + buf->data = (unsigned char *) YA_REALLOC(buf->alloc, buf->data, need); + buf->len = need; + } +} + +yajl_buf yajl_buf_alloc(yajl_alloc_funcs * alloc) +{ + yajl_buf b = YA_MALLOC(alloc, sizeof(struct yajl_buf_t)); + memset((void *) b, 0, sizeof(struct yajl_buf_t)); + b->alloc = alloc; + return b; +} + +void yajl_buf_free(yajl_buf buf) +{ + assert(buf != NULL); + if (buf->data) YA_FREE(buf->alloc, buf->data); + YA_FREE(buf->alloc, buf); +} + +void yajl_buf_append(yajl_buf buf, const void * data, size_t len) +{ + yajl_buf_ensure_available(buf, len); + if (len > 0) { + assert(data != NULL); + memcpy(buf->data + buf->used, data, len); + buf->used += len; + buf->data[buf->used] = 0; + } +} + +void yajl_buf_clear(yajl_buf buf) +{ + buf->used = 0; + if (buf->data) buf->data[buf->used] = 0; +} + +const unsigned char * yajl_buf_data(yajl_buf buf) +{ + return buf->data; +} + +size_t yajl_buf_len(yajl_buf buf) +{ + return buf->used; +} + +void +yajl_buf_truncate(yajl_buf buf, size_t len) +{ + assert(len <= buf->used); + buf->used = len; +} diff --git a/yajl/yajl_buf.h b/yajl/yajl_buf.h new file mode 100644 index 0000000..5528799 --- /dev/null +++ b/yajl/yajl_buf.h @@ -0,0 +1,57 @@ +/* + * Copyright (c) 2007-2014, Lloyd Hilaiel + * + * Permission to use, copy, modify, and/or distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +#ifndef __YAJL_BUF_H__ +#define __YAJL_BUF_H__ + +#include "yajl_common.h" +#include "yajl_alloc.h" + +/* + * Implementation/performance notes. If this were moved to a header + * only implementation using #define's where possible we might be + * able to sqeeze a little performance out of the guy by killing function + * call overhead. YMMV. + */ + +/** + * yajl_buf is a buffer with exponential growth. the buffer ensures that + * you are always null padded. + */ +typedef struct yajl_buf_t * yajl_buf; + +/* allocate a new buffer */ +yajl_buf yajl_buf_alloc(yajl_alloc_funcs * alloc); + +/* free the buffer */ +void yajl_buf_free(yajl_buf buf); + +/* append a number of bytes to the buffer */ +void yajl_buf_append(yajl_buf buf, const void * data, size_t len); + +/* empty the buffer */ +void yajl_buf_clear(yajl_buf buf); + +/* get a pointer to the beginning of the buffer */ +const unsigned char * yajl_buf_data(yajl_buf buf); + +/* get the length of the buffer */ +size_t yajl_buf_len(yajl_buf buf); + +/* truncate the buffer */ +void yajl_buf_truncate(yajl_buf buf, size_t len); + +#endif diff --git a/yajl/yajl_bytestack.h b/yajl/yajl_bytestack.h new file mode 100644 index 0000000..ff9bcca --- /dev/null +++ b/yajl/yajl_bytestack.h @@ -0,0 +1,69 @@ +/* + * Copyright (c) 2007-2014, Lloyd Hilaiel + * + * Permission to use, copy, modify, and/or distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +/* + * A header only implementation of a simple stack of bytes, used in YAJL + * to maintain parse state. + */ + +#ifndef __YAJL_BYTESTACK_H__ +#define __YAJL_BYTESTACK_H__ + +#include "yajl_common.h" + +#define YAJL_BS_INC 128 + +typedef struct yajl_bytestack_t +{ + unsigned char * stack; + size_t size; + size_t used; + yajl_alloc_funcs * yaf; +} yajl_bytestack; + +/* initialize a bytestack */ +#define yajl_bs_init(obs, _yaf) { \ + (obs).stack = NULL; \ + (obs).size = 0; \ + (obs).used = 0; \ + (obs).yaf = (_yaf); \ + } \ + + +/* initialize a bytestack */ +#define yajl_bs_free(obs) \ + if ((obs).stack) (obs).yaf->free((obs).yaf->ctx, (obs).stack); + +#define yajl_bs_current(obs) \ + (assert((obs).used > 0), (obs).stack[(obs).used - 1]) + +#define yajl_bs_push(obs, byte) { \ + if (((obs).size - (obs).used) == 0) { \ + (obs).size += YAJL_BS_INC; \ + (obs).stack = (obs).yaf->realloc((obs).yaf->ctx,\ + (void *) (obs).stack, (obs).size);\ + } \ + (obs).stack[((obs).used)++] = (byte); \ +} + +/* removes the top item of the stack, returns nothing */ +#define yajl_bs_pop(obs) { ((obs).used)--; } + +#define yajl_bs_set(obs, byte) \ + (obs).stack[((obs).used) - 1] = (byte); + + +#endif diff --git a/yajl/yajl_common.h b/yajl/yajl_common.h new file mode 100644 index 0000000..95a5ab7 --- /dev/null +++ b/yajl/yajl_common.h @@ -0,0 +1,147 @@ +/* + * Copyright (c) 2007-2014, Lloyd Hilaiel + * + * Permission to use, copy, modify, and/or distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +#ifndef __YAJL_COMMON_H__ +#define __YAJL_COMMON_H__ + +#include + +#ifdef __cplusplus +extern "C" { +#endif + +#define YAJL_MAX_DEPTH 128 + +// We're not creating a DLL, so don't mark the API's - GWG + +#ifdef NEVER + +/* msft dll export gunk. To build a DLL on windows, you + * must define WIN32, YAJL_SHARED, and YAJL_BUILD. To use a shared + * DLL, you must define YAJL_SHARED and WIN32 */ +#if (defined(_WIN32) || defined(WIN32)) && defined(YAJL_SHARED) +# ifdef YAJL_BUILD +# define YAJL_API __declspec(dllexport) +# else +# define YAJL_API __declspec(dllimport) +# endif +#else +# if defined(__GNUC__) && (__GNUC__ * 100 + __GNUC_MINOR__) >= 303 +# define YAJL_API __attribute__ ((visibility("default"))) +# else +# define YAJL_API +# endif +#endif + +#else + +# define YAJL_API + +#endif + +// Create a cross platform 64 bit int type "longlong" - GWG + +#if (__STDC_VERSION__ >= 199901L) /* C99 */ + +#include + +typedef int64_t longlong ; + +#define PF64PREC "ll" /* printf format precision specifier */ +#define CF64PREC "LL" /* Constant precision specifier */ + +#ifndef LLONG_MIN +# define LLONG_MIN INT64_MIN +#endif + +#ifndef LLONG_MAX +# define LLONG_MAX INT64_MAX +#endif + +#else /* !__STDC_VERSION__ */ +#ifdef _MSC_VER + +typedef __int64 longlong; + +#define PF64PREC "I64" /* printf format precision specifier */ +#define CF64PREC "LL" /* Constant precision specifier */ + +#ifndef LLONG_MIN +# define LLONG_MIN _I64_MIN +#endif + +#ifndef LLONG_MAX +# define LLONG_MAX _UI64_MAX +#endif + +#else /* !_MSC_VER */ + +/* The following works on a lot of modern systems, including */ +/* LLP64 and LP64 models, but won't work with ILP64 which needs int32 */ + +#ifdef __GNUC__ + +typedef long long longlong; + +# define PF64PREC "ll" /* printf format precision specifier */ +# define CF64PREC "LL" /* Constant precision specifier */ + +# ifndef LLONG_MIN +# define LLONG_MIN (-LLONG_MAX-1) +# endif +# ifndef LLONG_MAX +# define LLONG_MAX __LONG_LONG_MAX__ +# endif +# ifndef ULLONG_MAX +# define ULLONG_MAX (LLONG_MAX * 2ULL + 1) +# endif + +#endif /* __GNUC__ */ + +#endif /* !_MSC_VER */ +#endif /* !__STDC_VERSION__ */ + +/** pointer to a malloc function, supporting client overriding memory + * allocation routines */ +typedef void * (*yajl_malloc_func)(void *ctx, size_t sz); + +/** pointer to a free function, supporting client overriding memory + * allocation routines */ +typedef void (*yajl_free_func)(void *ctx, void * ptr); + +/** pointer to a realloc function which can resize an allocation. */ +typedef void * (*yajl_realloc_func)(void *ctx, void * ptr, size_t sz); + +/** A structure which can be passed to yajl_*_alloc routines to allow the + * client to specify memory allocation functions to be used. */ +typedef struct +{ + /** pointer to a function that can allocate uninitialized memory */ + yajl_malloc_func malloc; + /** pointer to a function that can resize memory allocations */ + yajl_realloc_func realloc; + /** pointer to a function that can free memory allocated using + * reallocFunction or mallocFunction */ + yajl_free_func free; + /** a context pointer that will be passed to above allocation routines */ + void * ctx; +} yajl_alloc_funcs; + +#ifdef __cplusplus +} +#endif + +#endif diff --git a/yajl/yajl_encode.c b/yajl/yajl_encode.c new file mode 100644 index 0000000..fd08258 --- /dev/null +++ b/yajl/yajl_encode.c @@ -0,0 +1,220 @@ +/* + * Copyright (c) 2007-2014, Lloyd Hilaiel + * + * Permission to use, copy, modify, and/or distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +#include "yajl_encode.h" + +#include +#include +#include +#include + +static void CharToHex(unsigned char c, char * hexBuf) +{ + const char * hexchar = "0123456789ABCDEF"; + hexBuf[0] = hexchar[c >> 4]; + hexBuf[1] = hexchar[c & 0x0F]; +} + +void +yajl_string_encode(const yajl_print_t print, + void * ctx, + const unsigned char * str, + size_t len, + int escape_solidus) +{ + size_t beg = 0; + size_t end = 0; + char hexBuf[7]; + hexBuf[0] = '\\'; hexBuf[1] = 'u'; hexBuf[2] = '0'; hexBuf[3] = '0'; + hexBuf[6] = 0; + + while (end < len) { + const char * escaped = NULL; + switch (str[end]) { + case '\r': escaped = "\\r"; break; + case '\n': escaped = "\\n"; break; + case '\\': escaped = "\\\\"; break; + /* it is not required to escape a solidus in JSON: + * read sec. 2.5: http://www.ietf.org/rfc/rfc4627.txt + * specifically, this production from the grammar: + * unescaped = %x20-21 / %x23-5B / %x5D-10FFFF + */ + case '/': if (escape_solidus) escaped = "\\/"; break; + case '"': escaped = "\\\""; break; + case '\f': escaped = "\\f"; break; + case '\b': escaped = "\\b"; break; + case '\t': escaped = "\\t"; break; + default: + if ((unsigned char) str[end] < 32) { + CharToHex(str[end], hexBuf + 4); + escaped = hexBuf; + } + break; + } + if (escaped != NULL) { + print(ctx, (const char *) (str + beg), end - beg); + print(ctx, escaped, (unsigned int)strlen(escaped)); + beg = ++end; + } else { + ++end; + } + } + print(ctx, (const char *) (str + beg), end - beg); +} + +static void hexToDigit(unsigned int * val, const unsigned char * hex) +{ + unsigned int i; + for (i=0;i<4;i++) { + unsigned char c = hex[i]; + if (c >= 'A') c = (c & ~0x20) - 7; + c -= '0'; + assert(!(c & 0xF0)); + *val = (*val << 4) | c; + } +} + +static void Utf32toUtf8(unsigned int codepoint, char * utf8Buf) +{ + if (codepoint < 0x80) { + utf8Buf[0] = (char) codepoint; + utf8Buf[1] = 0; + } else if (codepoint < 0x0800) { + utf8Buf[0] = (char) ((codepoint >> 6) | 0xC0); + utf8Buf[1] = (char) ((codepoint & 0x3F) | 0x80); + utf8Buf[2] = 0; + } else if (codepoint < 0x10000) { + utf8Buf[0] = (char) ((codepoint >> 12) | 0xE0); + utf8Buf[1] = (char) (((codepoint >> 6) & 0x3F) | 0x80); + utf8Buf[2] = (char) ((codepoint & 0x3F) | 0x80); + utf8Buf[3] = 0; + } else if (codepoint < 0x200000) { + utf8Buf[0] =(char)((codepoint >> 18) | 0xF0); + utf8Buf[1] =(char)(((codepoint >> 12) & 0x3F) | 0x80); + utf8Buf[2] =(char)(((codepoint >> 6) & 0x3F) | 0x80); + utf8Buf[3] =(char)((codepoint & 0x3F) | 0x80); + utf8Buf[4] = 0; + } else { + utf8Buf[0] = '?'; + utf8Buf[1] = 0; + } +} + +void yajl_string_decode(yajl_buf buf, const unsigned char * str, + size_t len) +{ + size_t beg = 0; + size_t end = 0; + + while (end < len) { + if (str[end] == '\\') { + char utf8Buf[5]; + const char * unescaped = "?"; + yajl_buf_append(buf, str + beg, end - beg); + switch (str[++end]) { + case 'r': unescaped = "\r"; break; + case 'n': unescaped = "\n"; break; + case '\\': unescaped = "\\"; break; + case '/': unescaped = "/"; break; + case '"': unescaped = "\""; break; + case 'f': unescaped = "\f"; break; + case 'b': unescaped = "\b"; break; + case 't': unescaped = "\t"; break; + case 'u': { + unsigned int codepoint = 0; + hexToDigit(&codepoint, str + ++end); + end+=3; + /* check if this is a surrogate */ + if ((codepoint & 0xFC00) == 0xD800) { + end++; + if (str[end] == '\\' && str[end + 1] == 'u') { + unsigned int surrogate = 0; + hexToDigit(&surrogate, str + end + 2); + codepoint = + (((codepoint & 0x3F) << 10) | + ((((codepoint >> 6) & 0xF) + 1) << 16) | + (surrogate & 0x3FF)); + end += 5; + } else { + unescaped = "?"; + break; + } + } + + Utf32toUtf8(codepoint, utf8Buf); + unescaped = utf8Buf; + + if (codepoint == 0) { + yajl_buf_append(buf, unescaped, 1); + beg = ++end; + continue; + } + + break; + } + default: + assert("this should never happen" == NULL); + } + yajl_buf_append(buf, unescaped, (unsigned int)strlen(unescaped)); + beg = ++end; + } else { + end++; + } + } + yajl_buf_append(buf, str + beg, end - beg); +} + +#define ADV_PTR s++; if (!(len--)) return 0; + +int yajl_string_validate_utf8(const unsigned char * s, size_t len) +{ + if (!len) return 1; + if (!s) return 0; + + while (len--) { + /* single byte */ + if (*s <= 0x7f) { + /* noop */ + } + /* two byte */ + else if ((*s >> 5) == 0x6) { + ADV_PTR; + if (!((*s >> 6) == 0x2)) return 0; + } + /* three byte */ + else if ((*s >> 4) == 0x0e) { + ADV_PTR; + if (!((*s >> 6) == 0x2)) return 0; + ADV_PTR; + if (!((*s >> 6) == 0x2)) return 0; + } + /* four byte */ + else if ((*s >> 3) == 0x1e) { + ADV_PTR; + if (!((*s >> 6) == 0x2)) return 0; + ADV_PTR; + if (!((*s >> 6) == 0x2)) return 0; + ADV_PTR; + if (!((*s >> 6) == 0x2)) return 0; + } else { + return 0; + } + + s++; + } + + return 1; +} diff --git a/yajl/yajl_encode.h b/yajl/yajl_encode.h new file mode 100644 index 0000000..b743c8a --- /dev/null +++ b/yajl/yajl_encode.h @@ -0,0 +1,34 @@ +/* + * Copyright (c) 2007-2014, Lloyd Hilaiel + * + * Permission to use, copy, modify, and/or distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +#ifndef __YAJL_ENCODE_H__ +#define __YAJL_ENCODE_H__ + +#include "yajl_buf.h" +#include "yajl_gen.h" + +void yajl_string_encode(const yajl_print_t printer, + void * ctx, + const unsigned char * str, + size_t length, + int escape_solidus); + +void yajl_string_decode(yajl_buf buf, const unsigned char * str, + size_t length); + +int yajl_string_validate_utf8(const unsigned char * s, size_t len); + +#endif diff --git a/yajl/yajl_gen.c b/yajl/yajl_gen.c new file mode 100644 index 0000000..d314907 --- /dev/null +++ b/yajl/yajl_gen.c @@ -0,0 +1,450 @@ +/* + * Copyright (c) 2007-2014, Lloyd Hilaiel + * + * Permission to use, copy, modify, and/or distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +#include "yajl_gen.h" +#include "yajl_buf.h" +#include "yajl_encode.h" + +#include +#include +#include +#include +#include + +typedef enum { + yajl_gen_start, + yajl_gen_map_start, + yajl_gen_map_key, + yajl_gen_map_val, + yajl_gen_array_start, + yajl_gen_in_array, + yajl_gen_complete, + yajl_gen_error +} yajl_gen_state; + +struct yajl_gen_t +{ + unsigned int flags; + unsigned int depth; + const char * indentString; + yajl_gen_state state[YAJL_MAX_DEPTH]; + yajl_print_t print; + void * ctx; /* yajl_buf */ + unsigned char *pendingComment; + unsigned int pendingLen; /* Length of pending comment */ + int pendingCpp; /* NZ if comment is C++ style, Z if C */ + /* memory allocation routines */ + yajl_alloc_funcs alloc; +}; + +int +yajl_gen_config(yajl_gen g, yajl_gen_option opt, ...) +{ + int rv = 1; + va_list ap; + va_start(ap, opt); + + switch(opt) { + case yajl_gen_beautify: + case yajl_gen_validate_utf8: + case yajl_gen_escape_solidus: + if (va_arg(ap, int)) g->flags |= opt; + else g->flags &= ~opt; + break; + case yajl_gen_indent_string: { + const char *indent = va_arg(ap, const char *); + g->indentString = indent; + for (; *indent; indent++) { + if (*indent != '\n' + && *indent != '\v' + && *indent != '\f' + && *indent != '\t' + && *indent != '\r' + && *indent != ' ') + { + g->indentString = NULL; + rv = 0; + } + } + break; + } + case yajl_gen_print_callback: + yajl_buf_free(g->ctx); + g->print = va_arg(ap, const yajl_print_t); + g->ctx = va_arg(ap, void *); + break; + default: + rv = 0; + } + + va_end(ap); + + return rv; +} + + + +yajl_gen +yajl_gen_alloc(const yajl_alloc_funcs * afs) +{ + yajl_gen g = NULL; + yajl_alloc_funcs afsBuffer; + + /* first order of business is to set up memory allocation routines */ + if (afs != NULL) { + if (afs->malloc == NULL || afs->realloc == NULL || afs->free == NULL) + { + return NULL; + } + } else { + yajl_set_default_alloc_funcs(&afsBuffer); + afs = &afsBuffer; + } + + g = (yajl_gen) YA_MALLOC(afs, sizeof(struct yajl_gen_t)); + if (!g) return NULL; + + memset((void *) g, 0, sizeof(struct yajl_gen_t)); + /* copy in pointers to allocation routines */ + memcpy((void *) &(g->alloc), (void *) afs, sizeof(yajl_alloc_funcs)); + + g->print = (yajl_print_t)&yajl_buf_append; + g->ctx = yajl_buf_alloc(&(g->alloc)); + g->indentString = " "; + + return g; +} + +void +yajl_gen_reset(yajl_gen g, const char * sep) +{ + g->depth = 0; + memset((void *) &(g->state), 0, sizeof(g->state)); + if (sep != NULL) g->print(g->ctx, sep, strlen(sep)); +} + +void +yajl_gen_free(yajl_gen g) +{ + if (g->print == (yajl_print_t)&yajl_buf_append) yajl_buf_free((yajl_buf)g->ctx); + YA_FREE(&(g->alloc), g); +} + +#define INSERT_EOL \ + if ((g->flags & yajl_gen_beautify) || g->pendingComment != NULL) \ + yajl_insert_eol(g); + +#define INSERT_SEP \ + if (g->state[g->depth] == yajl_gen_map_key || \ + g->state[g->depth] == yajl_gen_in_array) { \ + g->print(g->ctx, ",", 1); \ + INSERT_EOL; \ + } else if (g->state[g->depth] == yajl_gen_map_val) { \ + g->print(g->ctx, ":", 1); \ + if ((g->flags & yajl_gen_beautify)) g->print(g->ctx, " ", 1); \ + } + +#define INSERT_WHITESPACE \ + if ((g->flags & yajl_gen_beautify)) { \ + if (g->state[g->depth] != yajl_gen_map_val) { \ + unsigned int _i; \ + for (_i=0;_idepth;_i++) \ + g->print(g->ctx, \ + g->indentString, \ + (unsigned int)strlen(g->indentString)); \ + } \ + } + +#define INSERT_SOME_WHITESPACE \ + if ((g->flags & yajl_gen_beautify)) { \ + if (g->state[g->depth] != yajl_gen_map_val) { \ + g->print(g->ctx, \ + g->indentString, \ + (unsigned int)strlen(g->indentString)); \ + } \ + } + +#define ENSURE_NOT_KEY \ + if (g->state[g->depth] == yajl_gen_map_key || \ + g->state[g->depth] == yajl_gen_map_start) { \ + return yajl_gen_keys_must_be_strings; \ + } \ + +/* check that we're not complete, or in error state. in a valid state + * to be generating */ +#define ENSURE_VALID_STATE \ + if (g->state[g->depth] == yajl_gen_error) { \ + return yajl_gen_in_error_state;\ + } else if (g->state[g->depth] == yajl_gen_complete) { \ + return yajl_gen_generation_complete; \ + } + +#define INCREMENT_DEPTH \ + if (++(g->depth) >= YAJL_MAX_DEPTH) return yajl_max_depth_exceeded; + +#define DECREMENT_DEPTH \ + if (--(g->depth) >= YAJL_MAX_DEPTH) return yajl_gen_generation_complete; + +#define APPENDED_ATOM \ + switch (g->state[g->depth]) { \ + case yajl_gen_start: \ + g->state[g->depth] = yajl_gen_complete; \ + break; \ + case yajl_gen_map_start: \ + case yajl_gen_map_key: \ + g->state[g->depth] = yajl_gen_map_val; \ + break; \ + case yajl_gen_array_start: \ + g->state[g->depth] = yajl_gen_in_array; \ + break; \ + case yajl_gen_map_val: \ + g->state[g->depth] = yajl_gen_map_key; \ + break; \ + default: \ + break; \ + } \ + +#define FINAL_NEWLINE \ + if (g->state[g->depth] == yajl_gen_complete) \ + INSERT_EOL + +/* Insert an end of line, and take care of any */ +/* pending comments */ +static void yajl_insert_eol(yajl_gen g) { + if (g->pendingComment != NULL) { + INSERT_SOME_WHITESPACE; + if (g->pendingCpp) + g->print(g->ctx, "//", 2); + else + g->print(g->ctx, "/*", 2); + yajl_string_encode(g->print, g->ctx, g->pendingComment, g->pendingLen, + g->flags & yajl_gen_escape_solidus); + if (!g->pendingCpp) + g->print(g->ctx, "*/", 2); + free(g->pendingComment); + g->pendingComment = NULL; + g->pendingLen = 0; + g->pendingCpp = 0; + } + g->print(g->ctx, "\n", 1); +} + +/* Insert a comment at the end of the line. Append if there is already */ +/* one pending. */ +static void yajl_insert_pending_comment( +yajl_gen g, const unsigned char * str, unsigned int len, int cpp) { + if (g->pendingComment != NULL) { + unsigned int tlen = g->pendingLen + 0 + len; + unsigned char *pendingComment; + pendingComment = (unsigned char *) realloc(g->pendingComment, sizeof(char) * tlen); + memcpy(pendingComment + g->pendingLen + 0, str, len); + g->pendingComment = pendingComment; + g->pendingLen = tlen; + } else { + g->pendingComment = (unsigned char *) malloc(sizeof(char) * len); + memcpy(g->pendingComment, str, len); + g->pendingLen = len; + } + g->pendingCpp = cpp; +} + +yajl_gen_status +yajl_gen_integer(yajl_gen g, longlong number) +{ + char i[32]; + ENSURE_VALID_STATE; ENSURE_NOT_KEY; INSERT_SEP; INSERT_WHITESPACE; + sprintf(i, "%lld", number); + g->print(g->ctx, i, (unsigned int)strlen(i)); + APPENDED_ATOM; + FINAL_NEWLINE; + return yajl_gen_status_ok; +} + +#if (defined(_WIN32) || defined(WIN32)) && !defined(__GNUC__) +#include +#define isnan _isnan +#define isinf !_finite +#endif + +yajl_gen_status +yajl_gen_double(yajl_gen g, double number) +{ + char i[32]; + ENSURE_VALID_STATE; ENSURE_NOT_KEY; + if (isnan(number) || isinf(number)) return yajl_gen_invalid_number; + INSERT_SEP; INSERT_WHITESPACE; + sprintf(i, "%.20g", number); + if (strspn(i, "0123456789-") == strlen(i)) { + strcat(i, ".0"); + } + g->print(g->ctx, i, (unsigned int)strlen(i)); + APPENDED_ATOM; + FINAL_NEWLINE; + return yajl_gen_status_ok; +} + +yajl_gen_status +yajl_gen_number(yajl_gen g, const char * s, size_t l) +{ + ENSURE_VALID_STATE; ENSURE_NOT_KEY; INSERT_SEP; INSERT_WHITESPACE; + g->print(g->ctx, s, l); + APPENDED_ATOM; + FINAL_NEWLINE; + return yajl_gen_status_ok; +} + +yajl_gen_status +yajl_gen_string(yajl_gen g, const unsigned char * str, + size_t len) +{ + // if validation is enabled, check that the string is valid utf8 + // XXX: This checking could be done a little faster, in the same pass as + // the string encoding + if (g->flags & yajl_gen_validate_utf8) { + if (!yajl_string_validate_utf8(str, len)) { + return yajl_gen_invalid_string; + } + } + ENSURE_VALID_STATE; INSERT_SEP; INSERT_WHITESPACE; + g->print(g->ctx, "\"", 1); + yajl_string_encode(g->print, g->ctx, str, len, g->flags & yajl_gen_escape_solidus); + g->print(g->ctx, "\"", 1); + APPENDED_ATOM; + FINAL_NEWLINE; + return yajl_gen_status_ok; +} + +yajl_gen_status +yajl_gen_null(yajl_gen g) +{ + ENSURE_VALID_STATE; ENSURE_NOT_KEY; INSERT_SEP; INSERT_WHITESPACE; + g->print(g->ctx, "null", strlen("null")); + APPENDED_ATOM; + FINAL_NEWLINE; + return yajl_gen_status_ok; +} + +yajl_gen_status +yajl_gen_bool(yajl_gen g, int boolean) +{ + const char * val = boolean ? "true" : "false"; + + ENSURE_VALID_STATE; ENSURE_NOT_KEY; INSERT_SEP; INSERT_WHITESPACE; + g->print(g->ctx, val, (unsigned int)strlen(val)); + APPENDED_ATOM; + FINAL_NEWLINE; + return yajl_gen_status_ok; +} + +yajl_gen_status +yajl_gen_map_open(yajl_gen g) +{ + ENSURE_VALID_STATE; ENSURE_NOT_KEY; INSERT_SEP; INSERT_WHITESPACE; + INCREMENT_DEPTH; + + g->state[g->depth] = yajl_gen_map_start; + g->print(g->ctx, "{", 1); + INSERT_EOL; + FINAL_NEWLINE; + return yajl_gen_status_ok; +} + +yajl_gen_status +yajl_gen_map_close(yajl_gen g) +{ + ENSURE_VALID_STATE; + DECREMENT_DEPTH; + + INSERT_EOL; + APPENDED_ATOM; + INSERT_WHITESPACE; + g->print(g->ctx, "}", 1); + FINAL_NEWLINE; + return yajl_gen_status_ok; +} + +yajl_gen_status +yajl_gen_array_open(yajl_gen g) +{ + ENSURE_VALID_STATE; ENSURE_NOT_KEY; INSERT_SEP; INSERT_WHITESPACE; + INCREMENT_DEPTH; + g->state[g->depth] = yajl_gen_array_start; + g->print(g->ctx, "[", 1); + INSERT_EOL; + FINAL_NEWLINE; + return yajl_gen_status_ok; +} + +yajl_gen_status +yajl_gen_array_close(yajl_gen g) +{ + ENSURE_VALID_STATE; + DECREMENT_DEPTH; + INSERT_EOL; + APPENDED_ATOM; + INSERT_WHITESPACE; + g->print(g->ctx, "]", 1); + FINAL_NEWLINE; + return yajl_gen_status_ok; +} + +yajl_gen_status +yajl_gen_c_comment(yajl_gen g, const unsigned char * str, + unsigned int len, int dlytoeol) +{ + ENSURE_VALID_STATE; + if (dlytoeol) { + yajl_insert_pending_comment(g, str, len, 0); + } else { + if ((g->flags & yajl_gen_beautify)) + g->print(g->ctx, " /*", 3); + else + g->print(g->ctx, "/*", 2); + yajl_string_encode(g->print, g->ctx, str, len, g->flags & yajl_gen_escape_solidus); + if ((g->flags & yajl_gen_beautify)) + g->print(g->ctx, "*/ ", 3); + else + g->print(g->ctx, "*/", 2); + } + FINAL_NEWLINE; + return yajl_gen_status_ok; +} + +yajl_gen_status +yajl_gen_cpp_comment(yajl_gen g, const unsigned char * str, + unsigned int len) +{ + ENSURE_VALID_STATE; + yajl_insert_pending_comment(g, str, len, 1); + FINAL_NEWLINE; + return yajl_gen_status_ok; +} + +yajl_gen_status +yajl_gen_get_buf(yajl_gen g, const unsigned char ** buf, + size_t * len) +{ + if (g->print != (yajl_print_t)&yajl_buf_append) return yajl_gen_no_buf; + *buf = yajl_buf_data((yajl_buf)g->ctx); + *len = yajl_buf_len((yajl_buf)g->ctx); + return yajl_gen_status_ok; +} + +void +yajl_gen_clear(yajl_gen g) +{ + if (g->print == (yajl_print_t)&yajl_buf_append) yajl_buf_clear((yajl_buf)g->ctx); +} diff --git a/yajl/yajl_gen.h b/yajl/yajl_gen.h new file mode 100644 index 0000000..47f723d --- /dev/null +++ b/yajl/yajl_gen.h @@ -0,0 +1,165 @@ +/* + * Copyright (c) 2007-2014, Lloyd Hilaiel + * + * Permission to use, copy, modify, and/or distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +/** + * \file yajl_gen.h + * Interface to YAJL's JSON generation facilities. + */ + +#include "yajl_common.h" + +#ifndef __YAJL_GEN_H__ +#define __YAJL_GEN_H__ + +#include + +#ifdef __cplusplus +extern "C" { +#endif + /** generator status codes */ + typedef enum { + /** no error */ + yajl_gen_status_ok = 0, + /** at a point where a map key is generated, a function other than + * yajl_gen_string was called */ + yajl_gen_keys_must_be_strings, + /** YAJL's maximum generation depth was exceeded. see + * YAJL_MAX_DEPTH */ + yajl_max_depth_exceeded, + /** A generator function (yajl_gen_XXX) was called while in an error + * state */ + yajl_gen_in_error_state, + /** A complete JSON document has been generated */ + yajl_gen_generation_complete, + /** yajl_gen_double was passed an invalid floating point value + * (infinity or NaN). */ + yajl_gen_invalid_number, + /** A print callback was passed in, so there is no internal + * buffer to get from */ + yajl_gen_no_buf, + /** returned from yajl_gen_string() when the yajl_gen_validate_utf8 + * option is enabled and an invalid was passed by client code. + */ + yajl_gen_invalid_string + } yajl_gen_status; + + /** an opaque handle to a generator */ + typedef struct yajl_gen_t * yajl_gen; + + /** a callback used for "printing" the results. */ + typedef void (*yajl_print_t)(void * ctx, + const char * str, + size_t len); + + /** configuration parameters for the parser, these may be passed to + * yajl_gen_config() along with option specific argument(s). In general, + * all configuration parameters default to *off*. */ + typedef enum { + /** generate indented (beautiful) output */ + yajl_gen_beautify = 0x01, + /** + * Set an indent string which is used when yajl_gen_beautify + * is enabled. Maybe something like \\t or some number of + * spaces. The default is four spaces ' '. + */ + yajl_gen_indent_string = 0x02, + /** + * Set a function and context argument that should be used to + * output generated json. the function should conform to the + * yajl_print_t prototype while the context argument is a + * void * of your choosing. + * + * example: + * yajl_gen_config(g, yajl_gen_print_callback, myFunc, myVoidPtr); + */ + yajl_gen_print_callback = 0x04, + /** + * Normally the generator does not validate that strings you + * pass to it via yajl_gen_string() are valid UTF8. Enabling + * this option will cause it to do so. + */ + yajl_gen_validate_utf8 = 0x08, + /** + * the forward solidus (slash or '/' in human) is not required to be + * escaped in json text. By default, YAJL will not escape it in the + * iterest of saving bytes. Setting this flag will cause YAJL to + * always escape '/' in generated JSON strings. + */ + yajl_gen_escape_solidus = 0x10 + } yajl_gen_option; + + /** allow the modification of generator options subsequent to handle + * allocation (via yajl_alloc) + * \returns zero in case of errors, non-zero otherwise + */ + YAJL_API int yajl_gen_config(yajl_gen g, yajl_gen_option opt, ...); + + /** allocate a generator handle + * \param allocFuncs an optional pointer to a structure which allows + * the client to overide the memory allocation + * used by yajl. May be NULL, in which case + * malloc/free/realloc will be used. + * + * \returns an allocated handle on success, NULL on failure (bad params) + */ + YAJL_API yajl_gen yajl_gen_alloc(const yajl_alloc_funcs * allocFuncs); + + /** free a generator handle */ + YAJL_API void yajl_gen_free(yajl_gen handle); + + YAJL_API yajl_gen_status yajl_gen_integer(yajl_gen hand, longlong number); + /** generate a floating point number. number may not be infinity or + * NaN, as these have no representation in JSON. In these cases the + * generator will return 'yajl_gen_invalid_number' */ + YAJL_API yajl_gen_status yajl_gen_double(yajl_gen hand, double number); + YAJL_API yajl_gen_status yajl_gen_number(yajl_gen hand, + const char * num, + size_t len); + YAJL_API yajl_gen_status yajl_gen_string(yajl_gen hand, + const unsigned char * str, + size_t len); + YAJL_API yajl_gen_status yajl_gen_null(yajl_gen hand); + YAJL_API yajl_gen_status yajl_gen_bool(yajl_gen hand, int boolean); + YAJL_API yajl_gen_status yajl_gen_map_open(yajl_gen hand); + YAJL_API yajl_gen_status yajl_gen_map_close(yajl_gen hand); + YAJL_API yajl_gen_status yajl_gen_array_open(yajl_gen hand); + YAJL_API yajl_gen_status yajl_gen_array_close(yajl_gen hand); + + /** access the null terminated generator buffer. If incrementally + * outputing JSON, one should call yajl_gen_clear to clear the + * buffer. This allows stream generation. */ + YAJL_API yajl_gen_status yajl_gen_get_buf(yajl_gen hand, + const unsigned char ** buf, + size_t * len); + + /** clear yajl's output buffer, but maintain all internal generation + * state. This function will not "reset" the generator state, and is + * intended to enable incremental JSON outputing. */ + YAJL_API void yajl_gen_clear(yajl_gen hand); + + /** Reset the generator state. Allows a client to generate multiple + * json entities in a stream. The "sep" string will be inserted to + * separate the previously generated entity from the current, + * NULL means *no separation* of entites (clients beware, generating + * multiple JSON numbers, for instance, will result in inscrutable + * output) */ + YAJL_API void yajl_gen_reset(yajl_gen hand, const char * sep); + +#ifdef __cplusplus +} +#endif + +#endif diff --git a/yajl/yajl_lex.c b/yajl/yajl_lex.c new file mode 100644 index 0000000..8560a12 --- /dev/null +++ b/yajl/yajl_lex.c @@ -0,0 +1,778 @@ +/* + * Copyright (c) 2007-2014, Lloyd Hilaiel + * + * Permission to use, copy, modify, and/or distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +#include "yajl_lex.h" +#include "yajl_buf.h" + +#include +#include +#include +#include + +#ifdef YAJL_LEXER_DEBUG +static const char * +tokToStr(yajl_tok tok) +{ + switch (tok) { + case yajl_tok_bool: return "bool"; + case yajl_tok_colon: return "colon"; + case yajl_tok_comma: return "comma"; + case yajl_tok_eof: return "eof"; + case yajl_tok_error: return "error"; + case yajl_tok_left_brace: return "brace"; + case yajl_tok_left_bracket: return "bracket"; + case yajl_tok_null: return "null"; + case yajl_tok_integer: return "integer"; + case yajl_tok_double: return "double"; + case yajl_tok_right_brace: return "brace"; + case yajl_tok_right_bracket: return "bracket"; + case yajl_tok_string: return "string"; + case yajl_tok_string_with_escapes: return "string_with_escapes"; + case yajl_tok_c_comment: return "C comment"; + case yajl_tok_cpp_comment: return "C++ comment"; + } + return "unknown"; +} +#endif + +/* Impact of the stream parsing feature on the lexer: + * + * YAJL support stream parsing. That is, the ability to parse the first + * bits of a chunk of JSON before the last bits are available (still on + * the network or disk). This makes the lexer more complex. The + * responsibility of the lexer is to handle transparently the case where + * a chunk boundary falls in the middle of a token. This is + * accomplished is via a buffer and a character reading abstraction. + * + * Overview of implementation + * + * When we lex to end of input string before end of token is hit, we + * copy all of the input text composing the token into our lexBuf. + * + * Every time we read a character, we do so through the readChar function. + * readChar's responsibility is to handle pulling all chars from the buffer + * before pulling chars from input text + */ + +struct yajl_lexer_t { + /* the overal line and char offset into the data */ + size_t lineOff; + size_t charOff; + + /* error */ + yajl_lex_error error; + + /* a input buffer to handle the case where a token is spread over + * multiple chunks */ + yajl_buf buf; + + /* in the case where we have data in the lexBuf, bufOff holds + * the current offset into the lexBuf. */ + size_t bufOff; + + /* are we using the lex buf? */ + unsigned int bufInUse; + + /* shall we allow comments? */ + unsigned int allowComments; + + /* shall we validate utf8 inside strings? */ + unsigned int validateUTF8; + + yajl_alloc_funcs * alloc; +}; + +#define readChar(lxr, txt, off) \ + (((lxr)->bufInUse && yajl_buf_len((lxr)->buf) && lxr->bufOff < yajl_buf_len((lxr)->buf)) ? \ + (*((const unsigned char *) yajl_buf_data((lxr)->buf) + ((lxr)->bufOff)++)) : \ + ((txt)[(*(off))++])) + +#define unreadChar(lxr, off) ((*(off) > 0) ? (*(off))-- : ((lxr)->bufOff--)) + +yajl_lexer +yajl_lex_alloc(yajl_alloc_funcs * alloc, + unsigned int allowComments, unsigned int validateUTF8) +{ + yajl_lexer lxr = (yajl_lexer) YA_MALLOC(alloc, sizeof(struct yajl_lexer_t)); + memset((void *) lxr, 0, sizeof(struct yajl_lexer_t)); + lxr->buf = yajl_buf_alloc(alloc); + lxr->allowComments = allowComments; + lxr->validateUTF8 = validateUTF8; + lxr->alloc = alloc; + return lxr; +} + +void +yajl_lex_free(yajl_lexer lxr) +{ + yajl_buf_free(lxr->buf); + YA_FREE(lxr->alloc, lxr); + return; +} + +/* a lookup table which lets us quickly determine three things: + * VEC - valid escaped control char + * note. the solidus '/' may be escaped or not. + * IJC - invalid json char + * VHC - valid hex char + * NFP - needs further processing (from a string scanning perspective) + * NUC - needs utf8 checking when enabled (from a string scanning perspective) + */ +#define VEC 0x01 +#define IJC 0x02 +#define VHC 0x04 +#define NFP 0x08 +#define NUC 0x10 + +static const char charLookupTable[256] = +{ +/*00*/ IJC , IJC , IJC , IJC , IJC , IJC , IJC , IJC , +/*08*/ IJC , IJC , IJC , IJC , IJC , IJC , IJC , IJC , +/*10*/ IJC , IJC , IJC , IJC , IJC , IJC , IJC , IJC , +/*18*/ IJC , IJC , IJC , IJC , IJC , IJC , IJC , IJC , + +/*20*/ 0 , 0 , NFP|VEC|IJC, 0 , 0 , 0 , 0 , 0 , +/*28*/ 0 , 0 , 0 , 0 , 0 , 0 , 0 , VEC , +/*30*/ VHC , VHC , VHC , VHC , VHC , VHC , VHC , VHC , +/*38*/ VHC , VHC , 0 , 0 , 0 , 0 , 0 , 0 , + +/*40*/ 0 , VHC , VHC , VHC , VHC , VHC , VHC , 0 , +/*48*/ 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , +/*50*/ 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , +/*58*/ 0 , 0 , 0 , 0 , NFP|VEC|IJC, 0 , 0 , 0 , + +/*60*/ 0 , VHC , VEC|VHC, VHC , VHC , VHC , VEC|VHC, 0 , +/*68*/ 0 , 0 , 0 , 0 , 0 , 0 , VEC , 0 , +/*70*/ 0 , 0 , VEC , 0 , VEC , 0 , 0 , 0 , +/*78*/ 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , + + NUC , NUC , NUC , NUC , NUC , NUC , NUC , NUC , + NUC , NUC , NUC , NUC , NUC , NUC , NUC , NUC , + NUC , NUC , NUC , NUC , NUC , NUC , NUC , NUC , + NUC , NUC , NUC , NUC , NUC , NUC , NUC , NUC , + + NUC , NUC , NUC , NUC , NUC , NUC , NUC , NUC , + NUC , NUC , NUC , NUC , NUC , NUC , NUC , NUC , + NUC , NUC , NUC , NUC , NUC , NUC , NUC , NUC , + NUC , NUC , NUC , NUC , NUC , NUC , NUC , NUC , + + NUC , NUC , NUC , NUC , NUC , NUC , NUC , NUC , + NUC , NUC , NUC , NUC , NUC , NUC , NUC , NUC , + NUC , NUC , NUC , NUC , NUC , NUC , NUC , NUC , + NUC , NUC , NUC , NUC , NUC , NUC , NUC , NUC , + + NUC , NUC , NUC , NUC , NUC , NUC , NUC , NUC , + NUC , NUC , NUC , NUC , NUC , NUC , NUC , NUC , + NUC , NUC , NUC , NUC , NUC , NUC , NUC , NUC , + NUC , NUC , NUC , NUC , NUC , NUC , NUC , NUC +}; + +/** process a variable length utf8 encoded codepoint. + * + * returns: + * yajl_tok_string - if valid utf8 char was parsed and offset was + * advanced + * yajl_tok_eof - if end of input was hit before validation could + * complete + * yajl_tok_error - if invalid utf8 was encountered + * + * NOTE: on error the offset will point to the first char of the + * invalid utf8 */ +#define UTF8_CHECK_EOF if (*offset >= jsonTextLen) { return yajl_tok_eof; } + +static yajl_tok +yajl_lex_utf8_char(yajl_lexer lexer, const unsigned char * jsonText, + size_t jsonTextLen, size_t * offset, + unsigned char curChar) +{ + if (curChar <= 0x7f) { + /* single byte */ + return yajl_tok_string; + } else if ((curChar >> 5) == 0x6) { + /* two byte */ + UTF8_CHECK_EOF; + curChar = readChar(lexer, jsonText, offset); + if ((curChar >> 6) == 0x2) return yajl_tok_string; + } else if ((curChar >> 4) == 0x0e) { + /* three byte */ + UTF8_CHECK_EOF; + curChar = readChar(lexer, jsonText, offset); + if ((curChar >> 6) == 0x2) { + UTF8_CHECK_EOF; + curChar = readChar(lexer, jsonText, offset); + if ((curChar >> 6) == 0x2) return yajl_tok_string; + } + } else if ((curChar >> 3) == 0x1e) { + /* four byte */ + UTF8_CHECK_EOF; + curChar = readChar(lexer, jsonText, offset); + if ((curChar >> 6) == 0x2) { + UTF8_CHECK_EOF; + curChar = readChar(lexer, jsonText, offset); + if ((curChar >> 6) == 0x2) { + UTF8_CHECK_EOF; + curChar = readChar(lexer, jsonText, offset); + if ((curChar >> 6) == 0x2) return yajl_tok_string; + } + } + } + + return yajl_tok_error; +} + +/* lex a string. input is the lexer, pointer to beginning of + * json text, and start of string (offset). + * a token is returned which has the following meanings: + * yajl_tok_string: lex of string was successful. offset points to + * terminating '"'. + * yajl_tok_eof: end of text was encountered before we could complete + * the lex. + * yajl_tok_error: embedded in the string were unallowable chars. offset + * points to the offending char + */ +#define STR_CHECK_EOF \ +if (*offset >= jsonTextLen) { \ + tok = yajl_tok_eof; \ + goto finish_string_lex; \ +} + +/** scan a string for interesting characters that might need further + * review. return the number of chars that are uninteresting and can + * be skipped. + * (lth) hi world, any thoughts on how to make this routine faster? */ +static size_t +yajl_string_scan(const unsigned char * buf, size_t len, int utf8check) +{ + unsigned char mask = IJC|NFP|(utf8check ? NUC : 0); + size_t skip = 0; + while (skip < len && !(charLookupTable[*buf] & mask)) + { + skip++; + buf++; + } + return skip; +} + +static yajl_tok +yajl_lex_string(yajl_lexer lexer, const unsigned char * jsonText, + size_t jsonTextLen, size_t * offset) +{ + yajl_tok tok = yajl_tok_error; + int hasEscapes = 0; + + for (;;) { + unsigned char curChar; + + /* now jump into a faster scanning routine to skip as much + * of the buffers as possible */ + { + const unsigned char * p; + size_t len; + + if ((lexer->bufInUse && yajl_buf_len(lexer->buf) && + lexer->bufOff < yajl_buf_len(lexer->buf))) + { + p = ((const unsigned char *) yajl_buf_data(lexer->buf) + + (lexer->bufOff)); + len = yajl_buf_len(lexer->buf) - lexer->bufOff; + lexer->bufOff += yajl_string_scan(p, len, lexer->validateUTF8); + } + else if (*offset < jsonTextLen) + { + p = jsonText + *offset; + len = jsonTextLen - *offset; + *offset += yajl_string_scan(p, len, lexer->validateUTF8); + } + } + + STR_CHECK_EOF; + + curChar = readChar(lexer, jsonText, offset); + + /* quote terminates */ + if (curChar == '"') { + tok = yajl_tok_string; + break; + } + /* backslash escapes a set of control chars, */ + else if (curChar == '\\') { + hasEscapes = 1; + STR_CHECK_EOF; + + /* special case \u */ + curChar = readChar(lexer, jsonText, offset); + if (curChar == 'u') { + unsigned int i = 0; + + for (i=0;i<4;i++) { + STR_CHECK_EOF; + curChar = readChar(lexer, jsonText, offset); + if (!(charLookupTable[curChar] & VHC)) { + /* back up to offending char */ + unreadChar(lexer, offset); + lexer->error = yajl_lex_string_invalid_hex_char; + goto finish_string_lex; + } + } + } else if (!(charLookupTable[curChar] & VEC)) { + /* back up to offending char */ + unreadChar(lexer, offset); + lexer->error = yajl_lex_string_invalid_escaped_char; + goto finish_string_lex; + } + } + /* when not validating UTF8 it's a simple table lookup to determine + * if the present character is invalid */ + else if(charLookupTable[curChar] & IJC) { + /* back up to offending char */ + unreadChar(lexer, offset); + lexer->error = yajl_lex_string_invalid_json_char; + goto finish_string_lex; + } + /* when in validate UTF8 mode we need to do some extra work */ + else if (lexer->validateUTF8) { + yajl_tok t = yajl_lex_utf8_char(lexer, jsonText, jsonTextLen, + offset, curChar); + + if (t == yajl_tok_eof) { + tok = yajl_tok_eof; + goto finish_string_lex; + } else if (t == yajl_tok_error) { + lexer->error = yajl_lex_string_invalid_utf8; + goto finish_string_lex; + } + } + /* accept it, and move on */ + } + finish_string_lex: + /* tell our buddy, the parser, wether he needs to process this string + * again */ + if (hasEscapes && tok == yajl_tok_string) { + tok = yajl_tok_string_with_escapes; + } + + return tok; +} + +#define RETURN_IF_EOF if (*offset >= jsonTextLen) return yajl_tok_eof; + +static yajl_tok +yajl_lex_number(yajl_lexer lexer, const unsigned char * jsonText, + size_t jsonTextLen, size_t * offset) +{ + /** XXX: numbers are the only entities in json that we must lex + * _beyond_ in order to know that they are complete. There + * is an ambiguous case for integers at EOF. */ + + unsigned char c; + + yajl_tok tok = yajl_tok_integer; + + RETURN_IF_EOF; + c = readChar(lexer, jsonText, offset); + + /* optional leading minus */ + if (c == '-') { + RETURN_IF_EOF; + c = readChar(lexer, jsonText, offset); + } + + /* a single zero, or a series of integers */ + if (c == '0') { + RETURN_IF_EOF; + c = readChar(lexer, jsonText, offset); + } else if (c >= '1' && c <= '9') { + do { + RETURN_IF_EOF; + c = readChar(lexer, jsonText, offset); + } while (c >= '0' && c <= '9'); + } else { + unreadChar(lexer, offset); + lexer->error = yajl_lex_missing_integer_after_minus; + return yajl_tok_error; + } + + /* optional fraction (indicates this is floating point) */ + if (c == '.') { + int numRd = 0; + + RETURN_IF_EOF; + c = readChar(lexer, jsonText, offset); + + while (c >= '0' && c <= '9') { + numRd++; + RETURN_IF_EOF; + c = readChar(lexer, jsonText, offset); + } + + if (!numRd) { + unreadChar(lexer, offset); + lexer->error = yajl_lex_missing_integer_after_decimal; + return yajl_tok_error; + } + tok = yajl_tok_double; + } + + /* optional exponent (indicates this is floating point) */ + if (c == 'e' || c == 'E') { + RETURN_IF_EOF; + c = readChar(lexer, jsonText, offset); + + /* optional sign */ + if (c == '+' || c == '-') { + RETURN_IF_EOF; + c = readChar(lexer, jsonText, offset); + } + + if (c >= '0' && c <= '9') { + do { + RETURN_IF_EOF; + c = readChar(lexer, jsonText, offset); + } while (c >= '0' && c <= '9'); + } else { + unreadChar(lexer, offset); + lexer->error = yajl_lex_missing_integer_after_exponent; + return yajl_tok_error; + } + tok = yajl_tok_double; + } + + /* we always go "one too far" */ + unreadChar(lexer, offset); + + return tok; +} + +static yajl_tok +yajl_lex_comment(yajl_lexer lexer, const unsigned char * jsonText, + size_t jsonTextLen, size_t * offset) +{ + unsigned char c; + + yajl_tok tok; + + RETURN_IF_EOF; + c = readChar(lexer, jsonText, offset); + + /* either slash or star expected */ + if (c == '/') { + tok = yajl_tok_cpp_comment; + /* now we throw away until end of line */ + do { + RETURN_IF_EOF; + c = readChar(lexer, jsonText, offset); + } while (c != '\n'); + } else if (c == '*') { + tok = yajl_tok_c_comment; + /* now we throw away until end of comment */ + for (;;) { + RETURN_IF_EOF; + c = readChar(lexer, jsonText, offset); + if (c == '*') { + RETURN_IF_EOF; + c = readChar(lexer, jsonText, offset); + if (c == '/') { + break; + } else { + unreadChar(lexer, offset); + } + } + } + } else { + lexer->error = yajl_lex_invalid_char; + tok = yajl_tok_error; + } + + return tok; +} + +yajl_tok +yajl_lex_lex(yajl_lexer lexer, const unsigned char * jsonText, + size_t jsonTextLen, size_t * offset, + const unsigned char ** outBuf, size_t * outLen) +{ + yajl_tok tok = yajl_tok_error; + unsigned char c; + size_t startOffset = *offset; + + *outBuf = NULL; + *outLen = 0; + + for (;;) { + assert(*offset <= jsonTextLen); + + if (*offset >= jsonTextLen) { + tok = yajl_tok_eof; + goto lexed; + } + + c = readChar(lexer, jsonText, offset); + + switch (c) { + case '{': + tok = yajl_tok_left_bracket; + goto lexed; + case '}': + tok = yajl_tok_right_bracket; + goto lexed; + case '[': + tok = yajl_tok_left_brace; + goto lexed; + case ']': + tok = yajl_tok_right_brace; + goto lexed; + case ',': + tok = yajl_tok_comma; + goto lexed; + case ':': + tok = yajl_tok_colon; + goto lexed; + case '\t': case '\n': case '\v': case '\f': case '\r': case ' ': + startOffset++; + break; + case 't': { + const char * want = "rue"; + do { + if (*offset >= jsonTextLen) { + tok = yajl_tok_eof; + goto lexed; + } + c = readChar(lexer, jsonText, offset); + if (c != *want) { + unreadChar(lexer, offset); + lexer->error = yajl_lex_invalid_string; + tok = yajl_tok_error; + goto lexed; + } + } while (*(++want)); + tok = yajl_tok_bool; + goto lexed; + } + case 'f': { + const char * want = "alse"; + do { + if (*offset >= jsonTextLen) { + tok = yajl_tok_eof; + goto lexed; + } + c = readChar(lexer, jsonText, offset); + if (c != *want) { + unreadChar(lexer, offset); + lexer->error = yajl_lex_invalid_string; + tok = yajl_tok_error; + goto lexed; + } + } while (*(++want)); + tok = yajl_tok_bool; + goto lexed; + } + case 'n': { + const char * want = "ull"; + do { + if (*offset >= jsonTextLen) { + tok = yajl_tok_eof; + goto lexed; + } + c = readChar(lexer, jsonText, offset); + if (c != *want) { + unreadChar(lexer, offset); + lexer->error = yajl_lex_invalid_string; + tok = yajl_tok_error; + goto lexed; + } + } while (*(++want)); + tok = yajl_tok_null; + goto lexed; + } + case '"': { + tok = yajl_lex_string(lexer, (const unsigned char *) jsonText, + jsonTextLen, offset); + goto lexed; + } + case '-': + case '0': case '1': case '2': case '3': case '4': + case '5': case '6': case '7': case '8': case '9': { + /* integer parsing wants to start from the beginning */ + unreadChar(lexer, offset); + tok = yajl_lex_number(lexer, (const unsigned char *) jsonText, + jsonTextLen, offset); + goto lexed; + } + case '/': + /* hey, look, a probable comment! If comments are disabled + * it's an error. */ + if (!lexer->allowComments) { + unreadChar(lexer, offset); + lexer->error = yajl_lex_unallowed_comment; + tok = yajl_tok_error; + goto lexed; + } + /* if comments are enabled, then we should try to lex + * the thing. possible outcomes are + * - successful lex (tok_comment, which means continue), + * - malformed comment opening (slash not followed by + * '*' or '/') (tok_error) + * - eof hit. (tok_eof) */ + tok = yajl_lex_comment(lexer, (const unsigned char *) jsonText, + jsonTextLen, offset); + if (tok == yajl_tok_c_comment + || tok == yajl_tok_cpp_comment) { + goto lexed; + } + /* hit error or eof, bail */ + goto lexed; + default: + lexer->error = yajl_lex_invalid_char; + tok = yajl_tok_error; + goto lexed; + } + } + + + lexed: + /* need to append to buffer if the buffer is in use or + * if it's an EOF token */ + if (tok == yajl_tok_eof || lexer->bufInUse) { + if (!lexer->bufInUse) yajl_buf_clear(lexer->buf); + lexer->bufInUse = 1; + yajl_buf_append(lexer->buf, jsonText + startOffset, *offset - startOffset); + lexer->bufOff = 0; + + if (tok != yajl_tok_eof) { + *outBuf = yajl_buf_data(lexer->buf); + *outLen = yajl_buf_len(lexer->buf); + lexer->bufInUse = 0; + } + } else if (tok != yajl_tok_error) { + *outBuf = jsonText + startOffset; + *outLen = *offset - startOffset; + } + + /* special case for strings. skip the quotes. */ + if (tok == yajl_tok_string || tok == yajl_tok_string_with_escapes) + { + assert(*outLen >= 2); + (*outBuf)++; + *outLen -= 2; + } + + /* remove comment delimeters */ + if (tok == yajl_tok_c_comment) + { + assert(*outLen >= 4); + (*outBuf)+= 2; + *outLen -= 4; + } + if (tok == yajl_tok_cpp_comment) + { + assert(*outLen >= 2); + (*outBuf)+= 2; + *outLen -= 2; + + if (*outLen >= 1 && (*outBuf)[(*outLen)-1] == 0x0a) + *outLen -= 1; + } + +#ifdef YAJL_LEXER_DEBUG + if (tok == yajl_tok_error) { + printf("lexical error: %s\n", + yajl_lex_error_to_string(yajl_lex_get_error(lexer))); + } else if (tok == yajl_tok_eof) { + printf("EOF hit\n"); + } else { + printf("lexed %s: '", tokToStr(tok)); + fwrite(*outBuf, 1, *outLen, stdout); + printf("'\n"); + } +#endif + + return tok; +} + +const char * +yajl_lex_error_to_string(yajl_lex_error error) +{ + switch (error) { + case yajl_lex_e_ok: + return "ok, no error"; + case yajl_lex_string_invalid_utf8: + return "invalid bytes in UTF8 string."; + case yajl_lex_string_invalid_escaped_char: + return "inside a string, '\\' occurs before a character " + "which it may not."; + case yajl_lex_string_invalid_json_char: + return "invalid character inside string."; + case yajl_lex_string_invalid_hex_char: + return "invalid (non-hex) character occurs after '\\u' inside " + "string."; + case yajl_lex_invalid_char: + return "invalid char in json text."; + case yajl_lex_invalid_string: + return "invalid string in json text."; + case yajl_lex_missing_integer_after_exponent: + return "malformed number, a digit is required after the exponent."; + case yajl_lex_missing_integer_after_decimal: + return "malformed number, a digit is required after the " + "decimal point."; + case yajl_lex_missing_integer_after_minus: + return "malformed number, a digit is required after the " + "minus sign."; + case yajl_lex_unallowed_comment: + return "probable comment found in input text, comments are " + "not enabled."; + } + return "unknown error code"; +} + + +/** allows access to more specific information about the lexical + * error when yajl_lex_lex returns yajl_tok_error. */ +yajl_lex_error +yajl_lex_get_error(yajl_lexer lexer) +{ + if (lexer == NULL) return (yajl_lex_error) -1; + return lexer->error; +} + +size_t yajl_lex_current_line(yajl_lexer lexer) +{ + return lexer->lineOff; +} + +size_t yajl_lex_current_char(yajl_lexer lexer) +{ + return lexer->charOff; +} + +yajl_tok yajl_lex_peek(yajl_lexer lexer, const unsigned char * jsonText, + size_t jsonTextLen, size_t offset) +{ + const unsigned char * outBuf; + size_t outLen; + size_t bufLen = yajl_buf_len(lexer->buf); + size_t bufOff = lexer->bufOff; + unsigned int bufInUse = lexer->bufInUse; + yajl_tok tok; + + tok = yajl_lex_lex(lexer, jsonText, jsonTextLen, &offset, + &outBuf, &outLen); + + lexer->bufOff = bufOff; + lexer->bufInUse = bufInUse; + yajl_buf_truncate(lexer->buf, bufLen); + + return tok; +} diff --git a/yajl/yajl_lex.h b/yajl/yajl_lex.h new file mode 100644 index 0000000..61a0047 --- /dev/null +++ b/yajl/yajl_lex.h @@ -0,0 +1,119 @@ +/* + * Copyright (c) 2007-2014, Lloyd Hilaiel + * + * Permission to use, copy, modify, and/or distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +#ifndef __YAJL_LEX_H__ +#define __YAJL_LEX_H__ + +#include "yajl_common.h" + +typedef enum { + yajl_tok_bool, + yajl_tok_colon, + yajl_tok_comma, + yajl_tok_eof, + yajl_tok_error, + yajl_tok_left_brace, + yajl_tok_left_bracket, + yajl_tok_null, + yajl_tok_right_brace, + yajl_tok_right_bracket, + + /* we differentiate between integers and doubles to allow the + * parser to interpret the number without re-scanning */ + yajl_tok_integer, + yajl_tok_double, + + /* we differentiate between strings which require further processing, + * and strings that do not */ + yajl_tok_string, + yajl_tok_string_with_escapes, + + /* we return the two types of comment tokens as well */ + yajl_tok_c_comment, + yajl_tok_cpp_comment + +} yajl_tok; + +typedef struct yajl_lexer_t * yajl_lexer; + +yajl_lexer yajl_lex_alloc(yajl_alloc_funcs * alloc, + unsigned int allowComments, + unsigned int validateUTF8); + +void yajl_lex_free(yajl_lexer lexer); + +/** + * run/continue a lex. "offset" is an input/output parameter. + * It should be initialized to zero for a + * new chunk of target text, and upon subsetquent calls with the same + * target text should passed with the value of the previous invocation. + * + * the client may be interested in the value of offset when an error is + * returned from the lexer. This allows the client to render useful + * error messages. + * + * When you pass the next chunk of data, context should be reinitialized + * to zero. + * + * Finally, the output buffer is usually just a pointer into the jsonText, + * however in cases where the entity being lexed spans multiple chunks, + * the lexer will buffer the entity and the data returned will be + * a pointer into that buffer. + * + * This behavior is abstracted from client code except for the performance + * implications which require that the client choose a reasonable chunk + * size to get adequate performance. + */ +yajl_tok yajl_lex_lex(yajl_lexer lexer, const unsigned char * jsonText, + size_t jsonTextLen, size_t * offset, + const unsigned char ** outBuf, size_t * outLen); + +/** have a peek at the next token, but don't move the lexer forward */ +yajl_tok yajl_lex_peek(yajl_lexer lexer, const unsigned char * jsonText, + size_t jsonTextLen, size_t offset); + + +typedef enum { + yajl_lex_e_ok = 0, + yajl_lex_string_invalid_utf8, + yajl_lex_string_invalid_escaped_char, + yajl_lex_string_invalid_json_char, + yajl_lex_string_invalid_hex_char, + yajl_lex_invalid_char, + yajl_lex_invalid_string, + yajl_lex_missing_integer_after_decimal, + yajl_lex_missing_integer_after_exponent, + yajl_lex_missing_integer_after_minus, + yajl_lex_unallowed_comment +} yajl_lex_error; + +const char * yajl_lex_error_to_string(yajl_lex_error error); + +/** allows access to more specific information about the lexical + * error when yajl_lex_lex returns yajl_tok_error. */ +yajl_lex_error yajl_lex_get_error(yajl_lexer lexer); + +/** get the current offset into the most recently lexed json string. */ +size_t yajl_lex_current_offset(yajl_lexer lexer); + +/** get the number of lines lexed by this lexer instance */ +size_t yajl_lex_current_line(yajl_lexer lexer); + +/** get the number of chars lexed by this lexer instance since the last + * \n or \r */ +size_t yajl_lex_current_char(yajl_lexer lexer); + +#endif diff --git a/yajl/yajl_parse.h b/yajl/yajl_parse.h new file mode 100644 index 0000000..a3600fe --- /dev/null +++ b/yajl/yajl_parse.h @@ -0,0 +1,232 @@ +/* + * Copyright (c) 2007-2014, Lloyd Hilaiel + * + * Permission to use, copy, modify, and/or distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +/** + * \file yajl_parse.h + * Interface to YAJL's JSON stream parsing facilities. + */ + +#include "yajl_common.h" + +#ifndef __YAJL_PARSE_H__ +#define __YAJL_PARSE_H__ + +#include + +#ifdef __cplusplus +extern "C" { +#endif + /** error codes returned from this interface */ + typedef enum { + /** no error was encountered */ + yajl_status_ok, + /** a client callback returned zero, stopping the parse */ + yajl_status_client_canceled, + /** An error occured during the parse. Call yajl_get_error for + * more information about the encountered error */ + yajl_status_error + } yajl_status; + + /** attain a human readable, english, string for an error */ + YAJL_API const char * yajl_status_to_string(yajl_status code); + + /** an opaque handle to a parser */ + typedef struct yajl_handle_t * yajl_handle; + + /** yajl is an event driven parser. this means as json elements are + * parsed, you are called back to do something with the data. The + * functions in this table indicate the various events for which + * you will be called back. Each callback accepts a "context" + * pointer, this is a void * that is passed into the yajl_parse + * function which the client code may use to pass around context. + * + * All callbacks return an integer. If non-zero, the parse will + * continue. If zero, the parse will be canceled and + * yajl_status_client_canceled will be returned from the parse. + * + * \attention { + * A note about the handling of numbers: + * + * yajl will only convert numbers that can be represented in a + * double or a 64 bit (longlong) int. All other numbers will + * be passed to the client in string form using the yajl_number + * callback. Furthermore, if yajl_number is not NULL, it will + * always be used to return numbers, that is yajl_integer and + * yajl_double will be ignored. If yajl_number is NULL but one + * of yajl_integer or yajl_double are defined, parsing of a + * number larger than is representable in a double or 64 bit + * integer will result in a parse error. + * } + */ + typedef struct { + int (* yajl_null)(void * ctx); + int (* yajl_boolean)(void * ctx, int boolVal); + int (* yajl_integer)(void * ctx, longlong integerVal); + int (* yajl_double)(void * ctx, double doubleVal); + /** A callback which passes the string representation of the number + * back to the client. Will be used for all numbers when present */ + int (* yajl_number)(void * ctx, const char * numberVal, + size_t numberLen); + + /** strings are returned as pointers into the JSON text when, + * possible, as a result, they are _not_ null padded */ + int (* yajl_string)(void * ctx, const unsigned char * stringVal, + size_t stringLen); + + int (* yajl_c_comment)(void * ctx, const unsigned char * stringVal, + unsigned int stringLen); + + int (* yajl_cpp_comment)(void * ctx, const unsigned char * stringVal, + unsigned int stringLen); + + int (* yajl_start_map)(void * ctx); + int (* yajl_map_key)(void * ctx, const unsigned char * key, + size_t stringLen); + int (* yajl_end_map)(void * ctx); + + int (* yajl_start_array)(void * ctx); + int (* yajl_end_array)(void * ctx); + } yajl_callbacks; + + /** allocate a parser handle + * \param callbacks a yajl callbacks structure specifying the + * functions to call when different JSON entities + * are encountered in the input text. May be NULL, + * which is only useful for validation. + * \param afs memory allocation functions, may be NULL for to use + * C runtime library routines (malloc and friends) + * \param ctx a context pointer that will be passed to callbacks. + */ + YAJL_API yajl_handle yajl_alloc(const yajl_callbacks * callbacks, + yajl_alloc_funcs * afs, + void * ctx); + + + /** configuration parameters for the parser, these may be passed to + * yajl_config() along with option specific argument(s). In general, + * all configuration parameters default to *off*. */ + typedef enum { + /** Ignore javascript style comments present in + * JSON input. Non-standard, but rather fun + * arguments: toggled off with integer zero, on otherwise. + * + * example: + * yajl_config(h, yajl_allow_comments, 1); // turn comment support on + */ + yajl_allow_comments = 0x01, + /** + * When set the parser will verify that all strings in JSON input are + * valid UTF8 and will emit a parse error if this is not so. When set, + * this option makes parsing slightly more expensive (~7% depending + * on processor and compiler in use) + * + * example: + * yajl_config(h, yajl_dont_validate_strings, 1); // disable utf8 checking + */ + yajl_dont_validate_strings = 0x02, + /** + * By default, upon calls to yajl_complete_parse(), yajl will + * ensure the entire input text was consumed and will raise an error + * otherwise. Enabling this flag will cause yajl to disable this + * check. This can be useful when parsing json out of a that contains more + * than a single JSON document. + */ + yajl_allow_trailing_garbage = 0x04, + /** + * Allow multiple values to be parsed by a single handle. The + * entire text must be valid JSON, and values can be seperated + * by any kind of whitespace. This flag will change the + * behavior of the parser, and cause it continue parsing after + * a value is parsed, rather than transitioning into a + * complete state. This option can be useful when parsing multiple + * values from an input stream. + */ + yajl_allow_multiple_values = 0x08, + /** + * When yajl_complete_parse() is called the parser will + * check that the top level value was completely consumed. I.E., + * if called whilst in the middle of parsing a value + * yajl will enter an error state (premature EOF). Setting this + * flag suppresses that check and the corresponding error. + */ + yajl_allow_partial_values = 0x10 + } yajl_option; + + /** allow the modification of parser options subsequent to handle + * allocation (via yajl_alloc) + * \returns zero in case of errors, non-zero otherwise + */ + YAJL_API int yajl_config(yajl_handle h, yajl_option opt, ...); + + /** free a parser handle */ + YAJL_API void yajl_free(yajl_handle handle); + + /** Parse some json! + * \param hand - a handle to the json parser allocated with yajl_alloc + * \param jsonText - a pointer to the UTF8 json text to be parsed + * \param jsonTextLength - the length, in bytes, of input text + */ + YAJL_API yajl_status yajl_parse(yajl_handle hand, + const unsigned char * jsonText, + size_t jsonTextLength); + + /** Parse any remaining buffered json. + * Since yajl is a stream-based parser, without an explicit end of + * input, yajl sometimes can't decide if content at the end of the + * stream is valid or not. For example, if "1" has been fed in, + * yajl can't know whether another digit is next or some character + * that would terminate the integer token. + * + * \param hand - a handle to the json parser allocated with yajl_alloc + */ + YAJL_API yajl_status yajl_complete_parse(yajl_handle hand); + + /** get an error string describing the state of the + * parse. + * + * If verbose is non-zero, the message will include the JSON + * text where the error occured, along with an arrow pointing to + * the specific char. + * + * \returns A dynamically allocated string will be returned which should + * be freed with yajl_free_error + */ + YAJL_API unsigned char * yajl_get_error(yajl_handle hand, int verbose, + const unsigned char * jsonText, + size_t jsonTextLength); + + /** + * get the amount of data consumed from the last chunk passed to YAJL. + * + * In the case of a successful parse this can help you understand if + * the entire buffer was consumed (which will allow you to handle + * "junk at end of input"). + * + * In the event an error is encountered during parsing, this function + * affords the client a way to get the offset into the most recent + * chunk where the error occured. 0 will be returned if no error + * was encountered. + */ + YAJL_API size_t yajl_get_bytes_consumed(yajl_handle hand); + + /** free an error returned from yajl_get_error */ + YAJL_API void yajl_free_error(yajl_handle hand, unsigned char * str); + +#ifdef __cplusplus +} +#endif + +#endif diff --git a/yajl/yajl_parser.c b/yajl/yajl_parser.c new file mode 100644 index 0000000..20d5693 --- /dev/null +++ b/yajl/yajl_parser.c @@ -0,0 +1,558 @@ +/* + * Copyright (c) 2007-2014, Lloyd Hilaiel + * + * Permission to use, copy, modify, and/or distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +#include "yajl_parse.h" +#include "yajl_lex.h" +#include "yajl_parser.h" +#include "yajl_encode.h" +#include "yajl_bytestack.h" + +#include +#include +#include +#include +#include +#include +#include +#include + +#define MAX_VALUE_TO_MULTIPLY ((LLONG_MAX / 10) + (LLONG_MAX % 10)) + + /* same semantics as strtol */ +longlong +yajl_parse_integer(const unsigned char *number, unsigned int length) +{ + longlong ret = 0; + long sign = 1; + const unsigned char *pos = number; + if (*pos == '-') { pos++; sign = -1; } + if (*pos == '+') { pos++; } + + while (pos < number + length) { + if ( ret > MAX_VALUE_TO_MULTIPLY ) { + errno = ERANGE; + return sign == 1 ? LLONG_MAX : LLONG_MIN; + } + ret *= 10; + if (LLONG_MAX - ret < (*pos - '0')) { + errno = ERANGE; + return sign == 1 ? LLONG_MAX : LLONG_MIN; + } + if (*pos < '0' || *pos > '9') { + errno = ERANGE; + return sign == 1 ? LLONG_MAX : LLONG_MIN; + } + ret += (*pos++ - '0'); + } + + return sign * ret; +} + +unsigned char * +yajl_render_error_string(yajl_handle hand, const unsigned char * jsonText, + size_t jsonTextLen, int verbose) +{ + size_t offset = hand->bytesConsumed; + unsigned char * str; + const char * errorType = NULL; + const char * errorText = NULL; + char text[72]; + const char * arrow = " (right here) ------^\n"; + + if (yajl_bs_current(hand->stateStack) == yajl_state_parse_error) { + errorType = "parse"; + errorText = hand->parseError; + } else if (yajl_bs_current(hand->stateStack) == yajl_state_lexical_error) { + errorType = "lexical"; + errorText = yajl_lex_error_to_string(yajl_lex_get_error(hand->lexer)); + } else { + errorType = "unknown"; + } + + { + size_t memneeded = 0; + memneeded += strlen(errorType); + memneeded += strlen(" error"); + if (errorText != NULL) { + memneeded += strlen(": "); + memneeded += strlen(errorText); + } + str = (unsigned char *) YA_MALLOC(&(hand->alloc), memneeded + 2); + if (!str) return NULL; + str[0] = 0; + strcat((char *) str, errorType); + strcat((char *) str, " error"); + if (errorText != NULL) { + strcat((char *) str, ": "); + strcat((char *) str, errorText); + } + strcat((char *) str, "\n"); + } + + /* now we append as many spaces as needed to make sure the error + * falls at char 41, if verbose was specified */ + if (verbose) { + size_t start, end, i; + size_t spacesNeeded; + + spacesNeeded = (offset < 30 ? 40 - offset : 10); + start = (offset >= 30 ? offset - 30 : 0); + end = (offset + 30 > jsonTextLen ? jsonTextLen : offset + 30); + + for (i=0;ialloc), (unsigned int)(strlen((char *) str) + + strlen((char *) text) + + strlen(arrow) + 1)); + if (newStr) { + newStr[0] = 0; + strcat((char *) newStr, (char *) str); + strcat((char *) newStr, text); + strcat((char *) newStr, arrow); + } + YA_FREE(&(hand->alloc), str); + str = (unsigned char *) newStr; + } + } + return str; +} + +/* check for client cancelation */ +#define _CC_CHK(x) \ + if (!(x)) { \ + yajl_bs_set(hand->stateStack, yajl_state_parse_error); \ + hand->parseError = \ + "client cancelled parse via callback return value"; \ + return yajl_status_client_canceled; \ + } + + +yajl_status +yajl_do_finish(yajl_handle hand) +{ + yajl_status stat; + stat = yajl_do_parse(hand,(const unsigned char *) " ",1); + + if (stat != yajl_status_ok) return stat; + + switch(yajl_bs_current(hand->stateStack)) + { + case yajl_state_parse_error: + case yajl_state_lexical_error: + return yajl_status_error; + case yajl_state_got_value: + case yajl_state_parse_complete: + return yajl_status_ok; + default: + if (!(hand->flags & yajl_allow_partial_values)) + { + yajl_bs_set(hand->stateStack, yajl_state_parse_error); + hand->parseError = "premature EOF"; + return yajl_status_error; + } + return yajl_status_ok; + } +} + +yajl_status +yajl_do_parse(yajl_handle hand, const unsigned char * jsonText, + size_t jsonTextLen) +{ + yajl_tok tok; + const unsigned char * buf; + size_t bufLen; + size_t * offset = &(hand->bytesConsumed); + + *offset = 0; + + around_again: + switch (yajl_bs_current(hand->stateStack)) { + case yajl_state_parse_complete: + if (hand->flags & yajl_allow_multiple_values) { + yajl_bs_set(hand->stateStack, yajl_state_got_value); + goto around_again; + } + if (!(hand->flags & yajl_allow_trailing_garbage)) { + if (*offset != jsonTextLen) { + tok = yajl_lex_lex(hand->lexer, jsonText, jsonTextLen, + offset, &buf, &bufLen); + if (tok != yajl_tok_eof) { + yajl_bs_set(hand->stateStack, yajl_state_parse_error); + hand->parseError = "trailing garbage"; + } + goto around_again; + } + } + return yajl_status_ok; + case yajl_state_lexical_error: + case yajl_state_parse_error: + return yajl_status_error; + case yajl_state_start: + case yajl_state_got_value: + case yajl_state_map_need_val: + case yajl_state_array_need_val: + case yajl_state_array_start: { + /* for arrays and maps, we advance the state for this + * depth, then push the state of the next depth. + * If an error occurs during the parsing of the nesting + * enitity, the state at this level will not matter. + * a state that needs pushing will be anything other + * than state_start */ + + yajl_state stateToPush = yajl_state_start; + + tok = yajl_lex_lex(hand->lexer, jsonText, jsonTextLen, + offset, &buf, &bufLen); + + switch (tok) { + case yajl_tok_eof: + return yajl_status_ok; + case yajl_tok_error: + yajl_bs_set(hand->stateStack, yajl_state_lexical_error); + goto around_again; + case yajl_tok_c_comment: + if (hand->callbacks && hand->callbacks->yajl_c_comment) { + _CC_CHK(hand->callbacks->yajl_c_comment(hand->ctx, + buf, bufLen)); + } + goto around_again; + case yajl_tok_cpp_comment: + if (hand->callbacks && hand->callbacks->yajl_cpp_comment) { + _CC_CHK(hand->callbacks->yajl_cpp_comment(hand->ctx, + buf, bufLen)); + } + goto around_again; + case yajl_tok_string: + if (hand->callbacks && hand->callbacks->yajl_string) { + _CC_CHK(hand->callbacks->yajl_string(hand->ctx, + buf, bufLen)); + } + break; + case yajl_tok_string_with_escapes: + if (hand->callbacks && hand->callbacks->yajl_string) { + yajl_buf_clear(hand->decodeBuf); + yajl_string_decode(hand->decodeBuf, buf, bufLen); + _CC_CHK(hand->callbacks->yajl_string( + hand->ctx, yajl_buf_data(hand->decodeBuf), + yajl_buf_len(hand->decodeBuf))); + } + break; + case yajl_tok_bool: + if (hand->callbacks && hand->callbacks->yajl_boolean) { + _CC_CHK(hand->callbacks->yajl_boolean(hand->ctx, + *buf == 't')); + } + break; + case yajl_tok_null: + if (hand->callbacks && hand->callbacks->yajl_null) { + _CC_CHK(hand->callbacks->yajl_null(hand->ctx)); + } + break; + case yajl_tok_left_bracket: + if (hand->callbacks && hand->callbacks->yajl_start_map) { + _CC_CHK(hand->callbacks->yajl_start_map(hand->ctx)); + } + stateToPush = yajl_state_map_start; + break; + case yajl_tok_left_brace: + if (hand->callbacks && hand->callbacks->yajl_start_array) { + _CC_CHK(hand->callbacks->yajl_start_array(hand->ctx)); + } + stateToPush = yajl_state_array_start; + break; + case yajl_tok_integer: + if (hand->callbacks) { + if (hand->callbacks->yajl_number) { + _CC_CHK(hand->callbacks->yajl_number( + hand->ctx,(const char *) buf, bufLen)); + } else if (hand->callbacks->yajl_integer) { + longlong i = 0; + errno = 0; + i = yajl_parse_integer(buf, bufLen); + if ((i == LLONG_MIN || i == LLONG_MAX) && + errno == ERANGE) + { + yajl_bs_set(hand->stateStack, + yajl_state_parse_error); + hand->parseError = "integer overflow" ; + /* try to restore error offset */ + if (*offset >= bufLen) *offset -= bufLen; + else *offset = 0; + goto around_again; + } + _CC_CHK(hand->callbacks->yajl_integer(hand->ctx, + i)); + } + } + break; + case yajl_tok_double: + if (hand->callbacks) { + if (hand->callbacks->yajl_number) { + _CC_CHK(hand->callbacks->yajl_number( + hand->ctx, (const char *) buf, bufLen)); + } else if (hand->callbacks->yajl_double) { + double d = 0.0; + yajl_buf_clear(hand->decodeBuf); + yajl_buf_append(hand->decodeBuf, buf, bufLen); + buf = yajl_buf_data(hand->decodeBuf); + errno = 0; + d = strtod((char *) buf, NULL); + if ((d == HUGE_VAL || d == -HUGE_VAL) && + errno == ERANGE) + { + yajl_bs_set(hand->stateStack, + yajl_state_parse_error); + hand->parseError = "numeric (floating point) " + "overflow"; + /* try to restore error offset */ + if (*offset >= bufLen) *offset -= bufLen; + else *offset = 0; + goto around_again; + } + _CC_CHK(hand->callbacks->yajl_double(hand->ctx, + d)); + } + } + break; + case yajl_tok_right_brace: { + if (yajl_bs_current(hand->stateStack) == + yajl_state_array_start) + { + if (hand->callbacks && + hand->callbacks->yajl_end_array) + { + _CC_CHK(hand->callbacks->yajl_end_array(hand->ctx)); + } + yajl_bs_pop(hand->stateStack); + goto around_again; + } + /* intentional fall-through */ + } + case yajl_tok_colon: + case yajl_tok_comma: + case yajl_tok_right_bracket: + yajl_bs_set(hand->stateStack, yajl_state_parse_error); + hand->parseError = + "unallowed token at this point in JSON text"; + goto around_again; + default: + yajl_bs_set(hand->stateStack, yajl_state_parse_error); + hand->parseError = "invalid token, internal error"; + goto around_again; + } + /* got a value. transition depends on the state we're in. */ + { + yajl_state s = yajl_bs_current(hand->stateStack); + if (s == yajl_state_start || s == yajl_state_got_value) { + yajl_bs_set(hand->stateStack, yajl_state_parse_complete); + } else if (s == yajl_state_map_need_val) { + yajl_bs_set(hand->stateStack, yajl_state_map_got_val); + } else { + yajl_bs_set(hand->stateStack, yajl_state_array_got_val); + } + } + if (stateToPush != yajl_state_start) { + yajl_bs_push(hand->stateStack, stateToPush); + } + + goto around_again; + } + case yajl_state_map_start: + case yajl_state_map_need_key: { + /* only difference between these two states is that in + * start '}' is valid, whereas in need_key, we've parsed + * a comma, and a string key _must_ follow */ + tok = yajl_lex_lex(hand->lexer, jsonText, jsonTextLen, + offset, &buf, &bufLen); + switch (tok) { + case yajl_tok_eof: + return yajl_status_ok; + case yajl_tok_error: + yajl_bs_set(hand->stateStack, yajl_state_lexical_error); + goto around_again; + case yajl_tok_string_with_escapes: + if (hand->callbacks && hand->callbacks->yajl_map_key) { + yajl_buf_clear(hand->decodeBuf); + yajl_string_decode(hand->decodeBuf, buf, bufLen); + buf = yajl_buf_data(hand->decodeBuf); + bufLen = yajl_buf_len(hand->decodeBuf); + } + /* intentional fall-through */ + case yajl_tok_string: + if (hand->callbacks && hand->callbacks->yajl_map_key) { + _CC_CHK(hand->callbacks->yajl_map_key(hand->ctx, buf, + bufLen)); + } + yajl_bs_set(hand->stateStack, yajl_state_map_sep); + goto around_again; + case yajl_tok_c_comment: + if (hand->callbacks && hand->callbacks->yajl_c_comment) { + _CC_CHK(hand->callbacks->yajl_c_comment(hand->ctx, + buf, bufLen)); + } + goto around_again; + case yajl_tok_cpp_comment: + if (hand->callbacks && hand->callbacks->yajl_cpp_comment) { + _CC_CHK(hand->callbacks->yajl_cpp_comment(hand->ctx, + buf, bufLen)); + } + goto around_again; + case yajl_tok_right_bracket: + if (yajl_bs_current(hand->stateStack) == + yajl_state_map_start) + { + if (hand->callbacks && hand->callbacks->yajl_end_map) { + _CC_CHK(hand->callbacks->yajl_end_map(hand->ctx)); + } + yajl_bs_pop(hand->stateStack); + goto around_again; + } + default: + yajl_bs_set(hand->stateStack, yajl_state_parse_error); + hand->parseError = + "invalid object key (must be a string)"; + goto around_again; + } + } + case yajl_state_map_sep: { + tok = yajl_lex_lex(hand->lexer, jsonText, jsonTextLen, + offset, &buf, &bufLen); + switch (tok) { + case yajl_tok_c_comment: + if (hand->callbacks && hand->callbacks->yajl_c_comment) { + _CC_CHK(hand->callbacks->yajl_c_comment(hand->ctx, + buf, bufLen)); + } + goto around_again; + case yajl_tok_cpp_comment: + if (hand->callbacks && hand->callbacks->yajl_cpp_comment) { + _CC_CHK(hand->callbacks->yajl_cpp_comment(hand->ctx, + buf, bufLen)); + } + goto around_again; + case yajl_tok_colon: + yajl_bs_set(hand->stateStack, yajl_state_map_need_val); + goto around_again; + case yajl_tok_eof: + return yajl_status_ok; + case yajl_tok_error: + yajl_bs_set(hand->stateStack, yajl_state_lexical_error); + goto around_again; + default: + yajl_bs_set(hand->stateStack, yajl_state_parse_error); + hand->parseError = "object key and value must " + "be separated by a colon (':')"; + goto around_again; + } + } + case yajl_state_map_got_val: { + tok = yajl_lex_lex(hand->lexer, jsonText, jsonTextLen, + offset, &buf, &bufLen); + switch (tok) { + case yajl_tok_c_comment: + if (hand->callbacks && hand->callbacks->yajl_c_comment) { + _CC_CHK(hand->callbacks->yajl_c_comment(hand->ctx, + buf, bufLen)); + } + goto around_again; + case yajl_tok_cpp_comment: + if (hand->callbacks && hand->callbacks->yajl_cpp_comment) { + _CC_CHK(hand->callbacks->yajl_cpp_comment(hand->ctx, + buf, bufLen)); + } + goto around_again; + case yajl_tok_right_bracket: + if (hand->callbacks && hand->callbacks->yajl_end_map) { + _CC_CHK(hand->callbacks->yajl_end_map(hand->ctx)); + } + yajl_bs_pop(hand->stateStack); + goto around_again; + case yajl_tok_comma: + yajl_bs_set(hand->stateStack, yajl_state_map_need_key); + goto around_again; + case yajl_tok_eof: + return yajl_status_ok; + case yajl_tok_error: + yajl_bs_set(hand->stateStack, yajl_state_lexical_error); + goto around_again; + default: + yajl_bs_set(hand->stateStack, yajl_state_parse_error); + hand->parseError = "after key and value, inside map, " + "I expect ',' or '}'"; + /* try to restore error offset */ + if (*offset >= bufLen) *offset -= bufLen; + else *offset = 0; + goto around_again; + } + } + case yajl_state_array_got_val: { + tok = yajl_lex_lex(hand->lexer, jsonText, jsonTextLen, + offset, &buf, &bufLen); + switch (tok) { + case yajl_tok_c_comment: + if (hand->callbacks && hand->callbacks->yajl_c_comment) { + _CC_CHK(hand->callbacks->yajl_c_comment(hand->ctx, + buf, bufLen)); + } + goto around_again; + case yajl_tok_cpp_comment: + if (hand->callbacks && hand->callbacks->yajl_cpp_comment) { + _CC_CHK(hand->callbacks->yajl_cpp_comment(hand->ctx, + buf, bufLen)); + } + goto around_again; + case yajl_tok_right_brace: + if (hand->callbacks && hand->callbacks->yajl_end_array) { + _CC_CHK(hand->callbacks->yajl_end_array(hand->ctx)); + } + yajl_bs_pop(hand->stateStack); + goto around_again; + case yajl_tok_comma: + yajl_bs_set(hand->stateStack, yajl_state_array_need_val); + goto around_again; + case yajl_tok_eof: + return yajl_status_ok; + case yajl_tok_error: + yajl_bs_set(hand->stateStack, yajl_state_lexical_error); + goto around_again; + default: + yajl_bs_set(hand->stateStack, yajl_state_parse_error); + hand->parseError = + "after array element, I expect ',' or ']'"; + goto around_again; + } + } + } + + abort(); + return yajl_status_error; +} + diff --git a/yajl/yajl_parser.h b/yajl/yajl_parser.h new file mode 100644 index 0000000..5d87ed7 --- /dev/null +++ b/yajl/yajl_parser.h @@ -0,0 +1,78 @@ +/* + * Copyright (c) 2007-2014, Lloyd Hilaiel + * + * Permission to use, copy, modify, and/or distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +#ifndef __YAJL_PARSER_H__ +#define __YAJL_PARSER_H__ + +#include "yajl_parse.h" +#include "yajl_bytestack.h" +#include "yajl_buf.h" +#include "yajl_lex.h" + + +typedef enum { + yajl_state_start = 0, + yajl_state_parse_complete, + yajl_state_parse_error, + yajl_state_lexical_error, + yajl_state_map_start, + yajl_state_map_sep, + yajl_state_map_need_val, + yajl_state_map_got_val, + yajl_state_map_need_key, + yajl_state_array_start, + yajl_state_array_got_val, + yajl_state_array_need_val, + yajl_state_got_value, +} yajl_state; + +struct yajl_handle_t { + const yajl_callbacks * callbacks; + void * ctx; + yajl_lexer lexer; + const char * parseError; + /* the number of bytes consumed from the last client buffer, + * in the case of an error this will be an error offset, in the + * case of an error this can be used as the error offset */ + size_t bytesConsumed; + /* temporary storage for decoded strings */ + yajl_buf decodeBuf; + /* a stack of states. access with yajl_state_XXX routines */ + yajl_bytestack stateStack; + /* memory allocation routines */ + yajl_alloc_funcs alloc; + /* bitfield */ + unsigned int flags; +}; + +yajl_status +yajl_do_parse(yajl_handle handle, const unsigned char * jsonText, + size_t jsonTextLen); + +yajl_status +yajl_do_finish(yajl_handle handle); + +unsigned char * +yajl_render_error_string(yajl_handle hand, const unsigned char * jsonText, + size_t jsonTextLen, int verbose); + +/* A little built in integer parsing routine with the same semantics as strtol + * that's unaffected by LOCALE. */ +longlong +yajl_parse_integer(const unsigned char *number, unsigned int length); + + +#endif diff --git a/yajl/yajl_test.c b/yajl/yajl_test.c new file mode 100644 index 0000000..991dd4d --- /dev/null +++ b/yajl/yajl_test.c @@ -0,0 +1,293 @@ +/* + * Copyright (c) 2007-2014, Lloyd Hilaiel + * + * Permission to use, copy, modify, and/or distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +#include "yajl_parse.h" +#include "yajl_gen.h" + +#include +#include +#include + +#include + +/* memory debugging routines */ +typedef struct +{ + unsigned int numFrees; + unsigned int numMallocs; + /* XXX: we really need a hash table here with per-allocation + * information */ +} yajlTestMemoryContext; + +/* cast void * into context */ +#define TEST_CTX(vptr) ((yajlTestMemoryContext *) (vptr)) + +static void yajlTestFree(void * ctx, void * ptr) +{ + assert(ptr != NULL); + TEST_CTX(ctx)->numFrees++; + free(ptr); +} + +static void * yajlTestMalloc(void * ctx, size_t sz) +{ + assert(sz != 0); + TEST_CTX(ctx)->numMallocs++; + return malloc(sz); +} + +static void * yajlTestRealloc(void * ctx, void * ptr, size_t sz) +{ + if (ptr == NULL) { + assert(sz != 0); + TEST_CTX(ctx)->numMallocs++; + } else if (sz == 0) { + TEST_CTX(ctx)->numFrees++; + } + + return realloc(ptr, sz); +} + + +/* begin parsing callback routines */ +#define BUF_SIZE 2048 + +static int test_yajl_null(void *ctx) +{ + printf("null\n"); + return 1; +} + +static int test_yajl_boolean(void * ctx, int boolVal) +{ + printf("bool: %s\n", boolVal ? "true" : "false"); + return 1; +} + +static int test_yajl_integer(void *ctx, longlong integerVal) +{ + printf("integer: %lld\n", integerVal); + return 1; +} + +static int test_yajl_double(void *ctx, double doubleVal) +{ + printf("double: %g\n", doubleVal); + return 1; +} + +static int test_yajl_string(void *ctx, const unsigned char * stringVal, + size_t stringLen) +{ + printf("string: '"); + fwrite(stringVal, 1, stringLen, stdout); + printf("'\n"); + return 1; +} + +static int test_yajl_map_key(void *ctx, const unsigned char * stringVal, + size_t stringLen) +{ + char * str = (char *) malloc(stringLen + 1); + str[stringLen] = 0; + memcpy(str, stringVal, stringLen); + printf("key: '%s'\n", str); + free(str); + return 1; +} + +static int test_yajl_start_map(void *ctx) +{ + printf("map open '{'\n"); + return 1; +} + + +static int test_yajl_end_map(void *ctx) +{ + printf("map close '}'\n"); + return 1; +} + +static int test_yajl_start_array(void *ctx) +{ + printf("array open '['\n"); + return 1; +} + +static int test_yajl_end_array(void *ctx) +{ + printf("array close ']'\n"); + return 1; +} + +static yajl_callbacks callbacks = { + test_yajl_null, + test_yajl_boolean, + test_yajl_integer, + test_yajl_double, + NULL, + test_yajl_string, + NULL, + NULL, + test_yajl_start_map, + test_yajl_map_key, + test_yajl_end_map, + test_yajl_start_array, + test_yajl_end_array +}; + +static void usage(const char * progname) +{ + fprintf(stderr, + "usage: %s [options]\n" + "Parse input from stdin as JSON and ouput parsing details " + "to stdout\n" + " -b set the read buffer size\n" + " -c allow comments\n" + " -g allow *g*arbage after valid JSON text\n" + " -m allows the parser to consume multiple JSON values\n" + " from a single string separated by whitespace\n" + " -p partial JSON documents should not cause errors\n", + progname); + exit(1); +} + +int +main(int argc, char ** argv) +{ + yajl_handle hand; + const char * fileName = NULL; + static unsigned char * fileData = NULL; + FILE *file; + size_t bufSize = BUF_SIZE; + yajl_status stat; + size_t rd; + int i, j; + + /* memory allocation debugging: allocate a structure which collects + * statistics */ + yajlTestMemoryContext memCtx = { 0,0 }; + + /* memory allocation debugging: allocate a structure which holds + * allocation routines */ + yajl_alloc_funcs allocFuncs = { + yajlTestMalloc, + yajlTestRealloc, + yajlTestFree, + (void *) NULL + }; + + allocFuncs.ctx = (void *) &memCtx; + + /* allocate the parser */ + hand = yajl_alloc(&callbacks, &allocFuncs, NULL); + + /* check arguments. We expect exactly one! */ + for (i=1;i= argc) usage(argv[0]); + + /* validate integer */ + for (j=0;j<(int)strlen(argv[i]);j++) { + if (argv[i][j] <= '9' && argv[i][j] >= '0') continue; + fprintf(stderr, "-b requires an integer argument. '%s' " + "is invalid\n", argv[i]); + usage(argv[0]); + } + + bufSize = atoi(argv[i]); + if (!bufSize) { + fprintf(stderr, "%zu is an invalid buffer size\n", + bufSize); + } + } else if (!strcmp("-g", argv[i])) { + yajl_config(hand, yajl_allow_trailing_garbage, 1); + } else if (!strcmp("-m", argv[i])) { + yajl_config(hand, yajl_allow_multiple_values, 1); + } else if (!strcmp("-p", argv[i])) { + yajl_config(hand, yajl_allow_partial_values, 1); + } else { + fileName = argv[i]; + break; + } + } + + fileData = (unsigned char *) malloc(bufSize); + + if (fileData == NULL) { + fprintf(stderr, + "failed to allocate read buffer of %zu bytes, exiting.", + bufSize); + yajl_free(hand); + exit(2); + } + + if (fileName) + { + file = fopen(fileName, "r"); + } + else + { + file = stdin; + } + for (;;) { + rd = fread((void *) fileData, 1, bufSize, file); + + if (rd == 0) { + if (!feof(stdin)) { + fprintf(stderr, "error reading from '%s'\n", fileName); + } + break; + } + /* read file data, now pass to parser */ + stat = yajl_parse(hand, fileData, rd); + + if (stat != yajl_status_ok) break; + } + + stat = yajl_complete_parse(hand); + if (stat != yajl_status_ok) + { + unsigned char * str = yajl_get_error(hand, 0, fileData, rd); + fflush(stdout); + fprintf(stderr, "%s", (char *) str); + yajl_free_error(hand, str); + } + + yajl_free(hand); + free(fileData); + + if (fileName) + { + fclose(file); + } + /* finally, print out some memory statistics */ + +/* (lth) only print leaks here, as allocations and frees may vary depending + * on read buffer size, causing false failures. + * + * printf("allocations:\t%u\n", memCtx.numMallocs); + * printf("frees:\t\t%u\n", memCtx.numFrees); +*/ + fflush(stderr); + fflush(stdout); + printf("memory leaks:\t%u\n", memCtx.numMallocs - memCtx.numFrees); + + return 0; +} diff --git a/yajl/yajl_test.exe b/yajl/yajl_test.exe new file mode 100644 index 0000000..abb59cb Binary files /dev/null and b/yajl/yajl_test.exe differ diff --git a/yajl/yajl_test.obj b/yajl/yajl_test.obj new file mode 100644 index 0000000..c26d088 Binary files /dev/null and b/yajl/yajl_test.obj differ diff --git a/yajl/yajl_tree.c b/yajl/yajl_tree.c new file mode 100644 index 0000000..8e4aca3 --- /dev/null +++ b/yajl/yajl_tree.c @@ -0,0 +1,558 @@ +/* + * Copyright (c) 2010-2011 Florian Forster + * + * Permission to use, copy, modify, and/or distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +#include +#include +#include +#include +#include + +#include "yajl_tree.h" +#include "yajl_parse.h" + +#include "yajl_parser.h" + +#if defined(_WIN32) || defined(WIN32) +# define snprintf _snprintf +#endif + +#define STATUS_CONTINUE 1 +#define STATUS_ABORT 0 + +struct stack_elem_s; +typedef struct stack_elem_s stack_elem_t; +struct stack_elem_s +{ + char * key; + yajl_val value; + stack_elem_t *next; +}; + +struct context_s +{ + stack_elem_t *stack; + yajl_val root; + char *errbuf; + size_t errbuf_size; +}; +typedef struct context_s context_t; + +#define RETURN_ERROR(ctx,retval,param) { \ + if ((ctx)->errbuf != NULL) \ + snprintf ((ctx)->errbuf, (ctx)->errbuf_size, param); \ + return (retval); \ + } + +#define RETURN_ERROR2(ctx,retval,param1, param2) { \ + if ((ctx)->errbuf != NULL) \ + snprintf ((ctx)->errbuf, (ctx)->errbuf_size, param1, param2); \ + return (retval); \ + } + +static yajl_val value_alloc (yajl_type type) +{ + yajl_val v; + + v = malloc (sizeof (*v)); + if (v == NULL) return (NULL); + memset (v, 0, sizeof (*v)); + v->type = type; + + return (v); +} + +static void yajl_object_free (yajl_val v) +{ + size_t i; + + if (!YAJL_IS_OBJECT(v)) return; + + for (i = 0; i < v->u.object.len; i++) + { + free((char *) v->u.object.keys[i]); + v->u.object.keys[i] = NULL; + yajl_tree_free (v->u.object.values[i]); + v->u.object.values[i] = NULL; + } + + free((void*) v->u.object.keys); + free(v->u.object.values); + free(v); +} + +static void yajl_array_free (yajl_val v) +{ + size_t i; + + if (!YAJL_IS_ARRAY(v)) return; + + for (i = 0; i < v->u.array.len; i++) + { + yajl_tree_free (v->u.array.values[i]); + v->u.array.values[i] = NULL; + } + + free(v->u.array.values); + free(v); +} + +/* + * Parsing nested objects and arrays is implemented using a stack. When a new + * object or array starts (a curly or a square opening bracket is read), an + * appropriate value is pushed on the stack. When the end of the object is + * reached (an appropriate closing bracket has been read), the value is popped + * off the stack and added to the enclosing object using "context_add_value". + */ +static int context_push(context_t *ctx, yajl_val v) +{ + stack_elem_t *stack; + + stack = malloc (sizeof (*stack)); + if (stack == NULL) + RETURN_ERROR (ctx, ENOMEM, "Out of memory"); + memset (stack, 0, sizeof (*stack)); + + assert ((ctx->stack == NULL) + || YAJL_IS_OBJECT (v) + || YAJL_IS_ARRAY (v)); + + stack->value = v; + stack->next = ctx->stack; + ctx->stack = stack; + + return (0); +} + +static yajl_val context_pop(context_t *ctx) +{ + stack_elem_t *stack; + yajl_val v; + + if (ctx->stack == NULL) + RETURN_ERROR (ctx, NULL, "context_pop: Bottom of stack reached prematurely"); + + stack = ctx->stack; + ctx->stack = stack->next; + + v = stack->value; + + free (stack); + + return (v); +} + +static int object_add_keyval(context_t *ctx, + yajl_val obj, char *key, yajl_val value) +{ + const char **tmpk; + yajl_val *tmpv; + + /* We're checking for NULL in "context_add_value" or its callers. */ + assert (ctx != NULL); + assert (obj != NULL); + assert (key != NULL); + assert (value != NULL); + + /* We're assuring that "obj" is an object in "context_add_value". */ + assert(YAJL_IS_OBJECT(obj)); + + tmpk = realloc((void *) obj->u.object.keys, sizeof(*(obj->u.object.keys)) * (obj->u.object.len + 1)); + if (tmpk == NULL) + RETURN_ERROR(ctx, ENOMEM, "Out of memory"); + obj->u.object.keys = tmpk; + + tmpv = realloc(obj->u.object.values, sizeof (*obj->u.object.values) * (obj->u.object.len + 1)); + if (tmpv == NULL) + RETURN_ERROR(ctx, ENOMEM, "Out of memory"); + obj->u.object.values = tmpv; + + obj->u.object.keys[obj->u.object.len] = key; + obj->u.object.values[obj->u.object.len] = value; + obj->u.object.len++; + + return (0); +} + +static int array_add_value (context_t *ctx, + yajl_val array, yajl_val value) +{ + yajl_val *tmp; + + /* We're checking for NULL pointers in "context_add_value" or its + * callers. */ + assert (ctx != NULL); + assert (array != NULL); + assert (value != NULL); + + /* "context_add_value" will only call us with array values. */ + assert(YAJL_IS_ARRAY(array)); + + tmp = realloc(array->u.array.values, + sizeof(*(array->u.array.values)) * (array->u.array.len + 1)); + if (tmp == NULL) + RETURN_ERROR(ctx, ENOMEM, "Out of memory"); + array->u.array.values = tmp; + array->u.array.values[array->u.array.len] = value; + array->u.array.len++; + + return 0; +} + +/* + * Add a value to the value on top of the stack or the "root" member in the + * context if the end of the parsing process is reached. + */ +static int context_add_value (context_t *ctx, yajl_val v) +{ + /* We're checking for NULL values in all the calling functions. */ + assert (ctx != NULL); + assert (v != NULL); + + /* + * There are three valid states in which this function may be called: + * - There is no value on the stack => This is the only value. This is the + * last step done when parsing a document. We assign the value to the + * "root" member and return. + * - The value on the stack is an object. In this case store the key on the + * stack or, if the key has already been read, add key and value to the + * object. + * - The value on the stack is an array. In this case simply add the value + * and return. + */ + if (ctx->stack == NULL) + { + assert (ctx->root == NULL); + ctx->root = v; + return (0); + } + else if (YAJL_IS_OBJECT (ctx->stack->value)) + { + if (ctx->stack->key == NULL) + { + if (!YAJL_IS_STRING (v)) + RETURN_ERROR2 (ctx, EINVAL, "context_add_value: Object key is not a string (%#04x)", + v->type); + + ctx->stack->key = v->u.string; + v->u.string = NULL; + free(v); + return (0); + } + else /* if (ctx->key != NULL) */ + { + char * key; + + key = ctx->stack->key; + ctx->stack->key = NULL; + return (object_add_keyval (ctx, ctx->stack->value, key, v)); + } + } + else if (YAJL_IS_ARRAY (ctx->stack->value)) + { + return (array_add_value (ctx, ctx->stack->value, v)); + } + else + { + RETURN_ERROR2 (ctx, EINVAL, "context_add_value: Cannot add value to " + "a value of type %#04x (not a composite type)", + ctx->stack->value->type); + } +} + +static int handle_string (void *ctx, + const unsigned char *string, size_t string_length) +{ + yajl_val v; + + v = value_alloc (yajl_t_string); + if (v == NULL) + RETURN_ERROR ((context_t *) ctx, STATUS_ABORT, "Out of memory"); + + v->u.string = malloc (string_length + 1); + if (v->u.string == NULL) + { + free (v); + RETURN_ERROR ((context_t *) ctx, STATUS_ABORT, "Out of memory"); + } + memcpy(v->u.string, string, string_length); + v->u.string[string_length] = 0; + + return ((context_add_value (ctx, v) == 0) ? STATUS_CONTINUE : STATUS_ABORT); +} + +static int handle_number (void *ctx, const char *string, size_t string_length) +{ + yajl_val v; + char *endptr; + + v = value_alloc(yajl_t_number); + if (v == NULL) + RETURN_ERROR((context_t *) ctx, STATUS_ABORT, "Out of memory"); + + v->u.number.r = malloc(string_length + 1); + if (v->u.number.r == NULL) + { + free(v); + RETURN_ERROR((context_t *) ctx, STATUS_ABORT, "Out of memory"); + } + memcpy(v->u.number.r, string, string_length); + v->u.number.r[string_length] = 0; + + v->u.number.flags = 0; + + errno = 0; + v->u.number.i = yajl_parse_integer((const unsigned char *) v->u.number.r, + strlen(v->u.number.r)); + if (errno == 0) + v->u.number.flags |= YAJL_NUMBER_INT_VALID; + + endptr = NULL; + errno = 0; + v->u.number.d = strtod(v->u.number.r, &endptr); + if ((errno == 0) && (endptr != NULL) && (*endptr == 0)) + v->u.number.flags |= YAJL_NUMBER_DOUBLE_VALID; + + return ((context_add_value(ctx, v) == 0) ? STATUS_CONTINUE : STATUS_ABORT); +} + +static int handle_start_map (void *ctx) +{ + yajl_val v; + + v = value_alloc(yajl_t_object); + if (v == NULL) + RETURN_ERROR ((context_t *) ctx, STATUS_ABORT, "Out of memory"); + + v->u.object.keys = NULL; + v->u.object.values = NULL; + v->u.object.len = 0; + + return ((context_push (ctx, v) == 0) ? STATUS_CONTINUE : STATUS_ABORT); +} + +static int handle_end_map (void *ctx) +{ + yajl_val v; + + v = context_pop (ctx); + if (v == NULL) + return (STATUS_ABORT); + + return ((context_add_value (ctx, v) == 0) ? STATUS_CONTINUE : STATUS_ABORT); +} + +static int handle_start_array (void *ctx) +{ + yajl_val v; + + v = value_alloc(yajl_t_array); + if (v == NULL) + RETURN_ERROR ((context_t *) ctx, STATUS_ABORT, "Out of memory"); + + v->u.array.values = NULL; + v->u.array.len = 0; + + return ((context_push (ctx, v) == 0) ? STATUS_CONTINUE : STATUS_ABORT); +} + +static int handle_end_array (void *ctx) +{ + yajl_val v; + + v = context_pop (ctx); + if (v == NULL) + return (STATUS_ABORT); + + return ((context_add_value (ctx, v) == 0) ? STATUS_CONTINUE : STATUS_ABORT); +} + +static int handle_boolean (void *ctx, int boolean_value) +{ + yajl_val v; + + v = value_alloc (boolean_value ? yajl_t_true : yajl_t_false); + if (v == NULL) + RETURN_ERROR ((context_t *) ctx, STATUS_ABORT, "Out of memory"); + + return ((context_add_value (ctx, v) == 0) ? STATUS_CONTINUE : STATUS_ABORT); +} + +static int handle_null (void *ctx) +{ + yajl_val v; + + v = value_alloc (yajl_t_null); + if (v == NULL) + RETURN_ERROR ((context_t *) ctx, STATUS_ABORT, "Out of memory"); + + return ((context_add_value (ctx, v) == 0) ? STATUS_CONTINUE : STATUS_ABORT); +} + +/* + * Public functions + */ +yajl_val yajl_tree_parse (const char *input, + char *error_buffer, size_t error_buffer_size) +{ + static const yajl_callbacks callbacks = + { + /* null = */ handle_null, + /* boolean = */ handle_boolean, + /* integer = */ NULL, + /* double = */ NULL, + /* number = */ handle_number, + /* string = */ handle_string, + /* C comment = */ NULL, + /* C++ comment = */ NULL, + /* start map = */ handle_start_map, + /* map key = */ handle_string, + /* end map = */ handle_end_map, + /* start array = */ handle_start_array, + /* end array = */ handle_end_array + }; + + yajl_handle handle; + yajl_status status; + char * internal_err_str; + context_t ctx = { NULL, NULL, NULL, 0 }; + + ctx.errbuf = error_buffer; + ctx.errbuf_size = error_buffer_size; + + if (error_buffer != NULL) + memset (error_buffer, 0, error_buffer_size); + + handle = yajl_alloc (&callbacks, NULL, &ctx); + yajl_config(handle, yajl_allow_comments, 1); + + status = yajl_parse(handle, + (unsigned char *) input, + strlen (input)); + status = yajl_complete_parse (handle); + if (status != yajl_status_ok) { + if (error_buffer != NULL && error_buffer_size > 0) { + internal_err_str = (char *) yajl_get_error(handle, 1, + (const unsigned char *) input, + strlen(input)); + snprintf(error_buffer, error_buffer_size, "%s", internal_err_str); + YA_FREE(&(handle->alloc), internal_err_str); + } + yajl_free (handle); + return NULL; + } + + yajl_free (handle); + return (ctx.root); +} + +/* (This is useless if what we want is within any arrays) */ +yajl_val yajl_tree_get(yajl_val n, const char ** path, yajl_type type) +{ + if (!path) return NULL; + while (n && *path) { + size_t i; + size_t len; + + if (n->type != yajl_t_object) + return NULL; + len = n->u.object.len; + for (i = 0; i < len; i++) { + if (!strcmp(*path, n->u.object.keys[i])) { + n = n->u.object.values[i]; + break; + } + } + if (i == len) + return NULL; + path++; + } + if (n && type != yajl_t_any && type != n->type) + n = NULL; + return n; +} + +/* Find the first key that matches the name and type in */ +/* a depth first search. (This will work within arrays) */ +/* (Note a breadth first search would be more useful, but slower) */ +/* Return NULL if not found */ +yajl_val yajl_tree_get_first(yajl_val n, const char *key, yajl_type type) +{ + size_t i; + size_t len; + yajl_val x; + + if (n->type == yajl_t_object) { + len = n->u.object.len; + for (i = 0; i < len; i++) { + x = n->u.object.values[i]; + + if (!strcmp(key, n->u.object.keys[i]) + && (type == yajl_t_any || type == x->type)) { + return x; /* Found it */ + } + if (yajl_t_object == x->type + || yajl_t_array == x->type) { + if ((x = yajl_tree_get_first(x, key, type)) != NULL) + return x; + } + } + return NULL; + + } else if (n->type == yajl_t_array) { + len = n->u.array.len; + for (i = 0; i < len; i++) { + x = n->u.array.values[i]; + if (yajl_t_object == x->type + || yajl_t_array == x->type) { + if ((x = yajl_tree_get_first(x, key, type)) != NULL) + return x; + } + } + return NULL; + + } else { + return NULL; + } + return n; +} + +void yajl_tree_free (yajl_val v) +{ + if (v == NULL) return; + + if (YAJL_IS_STRING(v)) + { + free(v->u.string); + free(v); + } + else if (YAJL_IS_NUMBER(v)) + { + free(v->u.number.r); + free(v); + } + else if (YAJL_GET_OBJECT(v)) + { + yajl_object_free(v); + } + else if (YAJL_GET_ARRAY(v)) + { + yajl_array_free(v); + } + else /* if (yajl_t_true or yajl_t_false or yajl_t_null) */ + { + free(v); + } +} diff --git a/yajl/yajl_tree.h b/yajl/yajl_tree.h new file mode 100644 index 0000000..dc26183 --- /dev/null +++ b/yajl/yajl_tree.h @@ -0,0 +1,190 @@ +/* + * Copyright (c) 2010-2011 Florian Forster + * + * Permission to use, copy, modify, and/or distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +/** + * \file yajl_tree.h + * + * Parses JSON data and returns the data in tree form. + * + * \author Florian Forster + * \date August 2010 + * + * This interface makes quick parsing and extraction of + * smallish JSON docs trivial: + * + * \include example/parse_config.c + */ + +#ifndef YAJL_TREE_H +#define YAJL_TREE_H 1 + +#include "yajl_common.h" + +#ifdef __cplusplus +extern "C" { +#endif + +/** possible data types that a yajl_val_s can hold */ +typedef enum { + yajl_t_string = 1, + yajl_t_number = 2, + yajl_t_object = 3, + yajl_t_array = 4, + yajl_t_true = 5, + yajl_t_false = 6, + yajl_t_null = 7, + /** The any type isn't valid for yajl_val_s.type, but can be + * used as an argument to routines like yajl_tree_get(). + */ + yajl_t_any = 8 +} yajl_type; + +#define YAJL_NUMBER_INT_VALID 0x01 +#define YAJL_NUMBER_DOUBLE_VALID 0x02 + +/** A pointer to a node in the parse tree */ +typedef struct yajl_val_s * yajl_val; + +/** + * A JSON value representation capable of holding one of the seven + * types above. For "string", "number", "object", and "array" + * additional data is available in the union. The "YAJL_IS_*" + * and "YAJL_GET_*" macros below allow type checking and convenient + * value extraction. + */ +struct yajl_val_s +{ + /** Type of the value contained. Use the "YAJL_IS_*" macros to check for a + * specific type. */ + yajl_type type; + /** Type-specific data. You may use the "YAJL_GET_*" macros to access these + * members. */ + union + { + char * string; + struct { + longlong i; /*< integer value, if representable. */ + double d; /*< double value, if representable. */ + char *r; /*< unparsed number in string form. */ + /** Signals whether the \em i and \em d members are + * valid. See \c YAJL_NUMBER_INT_VALID and + * \c YAJL_NUMBER_DOUBLE_VALID. */ + unsigned int flags; + } number; + struct { + const char **keys; /*< Array of keys */ + yajl_val *values; /*< Array of values. */ + size_t len; /*< Number of key-value-pairs. */ + } object; + struct { + yajl_val *values; /*< Array of elements. */ + size_t len; /*< Number of elements. */ + } array; + } u; +}; + +/** + * Parse a string. + * + * Parses an null-terminated string containing JSON data and returns a pointer + * to the top-level value (root of the parse tree). + * + * \param input Pointer to a null-terminated utf8 string containing + * JSON data. + * \param error_buffer Pointer to a buffer in which an error message will + * be stored if \em yajl_tree_parse fails, or + * \c NULL. The buffer will be initialized before + * parsing, so its content will be destroyed even if + * \em yajl_tree_parse succeeds. + * \param error_buffer_size Size of the memory area pointed to by + * \em error_buffer_size. If \em error_buffer_size is + * \c NULL, this argument is ignored. + * + * \returns Pointer to the top-level value or \c NULL on error. The memory + * pointed to must be freed using \em yajl_tree_free. In case of an error, a + * null terminated message describing the error in more detail is stored in + * \em error_buffer if it is not \c NULL. + */ +YAJL_API yajl_val yajl_tree_parse (const char *input, + char *error_buffer, size_t error_buffer_size); + + +/** + * Free a parse tree returned by "yajl_tree_parse". + * + * \param v Pointer to a JSON value returned by "yajl_tree_parse". Passing NULL + * is valid and results in a no-op. + */ +YAJL_API void yajl_tree_free (yajl_val v); + +/** + * Access a nested value inside a tree. + * + * \param parent the node under which you'd like to extract values. + * \param path A null terminated array of strings, each the name of an object key + * \param type the yajl_type of the object you seek, or yajl_t_any if any will do. + * + * \returns a pointer to the found value, or NULL if we came up empty. + * + * Future Ideas: it'd be nice to move path to a string and implement support for + * a teeny tiny micro language here, so you can extract array elements, do things + * like .first and .last, even .length. Inspiration from JSONPath and css selectors? + * No it wouldn't be fast, but that's not what this API is about. + */ +YAJL_API yajl_val yajl_tree_get(yajl_val parent, const char ** path, yajl_type type); + +/* Find the first key that matches the name and type. */ +/* return NULL if not found */ +yajl_val yajl_tree_get_first(yajl_val n, const char *key, yajl_type type); + +/* Various convenience macros to check the type of a `yajl_val` */ +#define YAJL_IS_STRING(v) (((v) != NULL) && ((v)->type == yajl_t_string)) +#define YAJL_IS_NUMBER(v) (((v) != NULL) && ((v)->type == yajl_t_number)) +#define YAJL_IS_INTEGER(v) (YAJL_IS_NUMBER(v) && ((v)->u.number.flags & YAJL_NUMBER_INT_VALID)) +#define YAJL_IS_DOUBLE(v) (YAJL_IS_NUMBER(v) && ((v)->u.number.flags & YAJL_NUMBER_DOUBLE_VALID)) +#define YAJL_IS_OBJECT(v) (((v) != NULL) && ((v)->type == yajl_t_object)) +#define YAJL_IS_ARRAY(v) (((v) != NULL) && ((v)->type == yajl_t_array )) +#define YAJL_IS_TRUE(v) (((v) != NULL) && ((v)->type == yajl_t_true )) +#define YAJL_IS_FALSE(v) (((v) != NULL) && ((v)->type == yajl_t_false )) +#define YAJL_IS_NULL(v) (((v) != NULL) && ((v)->type == yajl_t_null )) + +/** Given a yajl_val_string return a ptr to the bare string it contains, + * or NULL if the value is not a string. */ +#define YAJL_GET_STRING(v) (YAJL_IS_STRING(v) ? (v)->u.string : NULL) + +/** Get the string representation of a number. You should check type first, + * perhaps using YAJL_IS_NUMBER */ +#define YAJL_GET_NUMBER(v) ((v)->u.number.r) + +/** Get the double representation of a number. You should check type first, + * perhaps using YAJL_IS_DOUBLE */ +#define YAJL_GET_DOUBLE(v) ((v)->u.number.d) + +/** Get the 64bit (longlong) integer representation of a number. You should + * check type first, perhaps using YAJL_IS_INTEGER */ +#define YAJL_GET_INTEGER(v) ((v)->u.number.i) + +/** Get a pointer to a yajl_val_object or NULL if the value is not an object. */ +#define YAJL_GET_OBJECT(v) (YAJL_IS_OBJECT(v) ? &(v)->u.object : NULL) + +/** Get a pointer to a yajl_val_array or NULL if the value is not an object. */ +#define YAJL_GET_ARRAY(v) (YAJL_IS_ARRAY(v) ? &(v)->u.array : NULL) + +#ifdef __cplusplus +} +#endif + +#endif /* YAJL_TREE_H */ diff --git a/yajl/yajl_version.c b/yajl/yajl_version.c new file mode 100644 index 0000000..cc7651e --- /dev/null +++ b/yajl/yajl_version.c @@ -0,0 +1,7 @@ +#include "yajl_version.h" + +int yajl_version(void) +{ + return YAJL_VERSION; +} + diff --git a/yajl/yajl_version.h b/yajl/yajl_version.h new file mode 100644 index 0000000..f7354d0 --- /dev/null +++ b/yajl/yajl_version.h @@ -0,0 +1,23 @@ +#ifndef YAJL_VERSION_H_ +#define YAJL_VERSION_H_ + +#include "yajl_common.h" + +#define YAJL_MAJOR 2 +#define YAJL_MINOR 1 +#define YAJL_MICRO 0 + +#define YAJL_VERSION ((YAJL_MAJOR * 10000) + (YAJL_MINOR * 100) + YAJL_MICRO) + +#ifdef __cplusplus +extern "C" { +#endif + +extern int YAJL_API yajl_version(void); + +#ifdef __cplusplus +} +#endif + +#endif /* YAJL_VERSION_H_ */ + diff --git a/zlib/CMakeLists.txt b/zlib/CMakeLists.txt new file mode 100644 index 0000000..a64fe0b --- /dev/null +++ b/zlib/CMakeLists.txt @@ -0,0 +1,190 @@ +cmake_minimum_required(VERSION 2.4.4) +set(CMAKE_ALLOW_LOOSE_LOOP_CONSTRUCTS ON) + +project(zlib C) + +if(NOT DEFINED BUILD_SHARED_LIBS) + option(BUILD_SHARED_LIBS "Build a shared library form of zlib" ON) +endif() + +include(CheckTypeSize) +include(CheckFunctionExists) +include(CheckIncludeFile) +include(CheckCSourceCompiles) +enable_testing() + +check_include_file(sys/types.h HAVE_SYS_TYPES_H) +check_include_file(stdint.h HAVE_STDINT_H) +check_include_file(stddef.h HAVE_STDDEF_H) + +# +# Check to see if we have large file support +# +set(CMAKE_REQUIRED_DEFINITIONS -D_LARGEFILE64_SOURCE=1) +# We add these other definitions here because CheckTypeSize.cmake +# in CMake 2.4.x does not automatically do so and we want +# compatibility with CMake 2.4.x. +if(HAVE_SYS_TYPES_H) + list(APPEND CMAKE_REQUIRED_DEFINITIONS -DHAVE_SYS_TYPES_H) +endif() +if(HAVE_STDINT_H) + list(APPEND CMAKE_REQUIRED_DEFINITIONS -DHAVE_STDINT_H) +endif() +if(HAVE_STDDEF_H) + list(APPEND CMAKE_REQUIRED_DEFINITIONS -DHAVE_STDDEF_H) +endif() +check_type_size(off64_t OFF64_T) +if(HAVE_OFF64_T) + add_definitions(-D_LARGEFILE64_SOURCE=1) +endif() +set(CMAKE_REQUIRED_DEFINITIONS) # clear variable + +# +# Check for fseeko +# +check_function_exists(fseeko HAVE_FSEEKO) +if(NOT HAVE_FSEEKO) + add_definitions(-DNO_FSEEKO) +endif() + +# +# Check for unistd.h +# +check_include_file(unistd.h Z_HAVE_UNISTD_H) + +if(MSVC) + set(CMAKE_DEBUG_POSTFIX "d") + add_definitions(-D_CRT_SECURE_NO_DEPRECATE) + add_definitions(-D_CRT_NONSTDC_NO_DEPRECATE) +endif() + +if(NOT CMAKE_CURRENT_SOURCE_DIR STREQUAL CMAKE_CURRENT_BINARY_DIR) + # If we're doing an out of source build and the user has a zconf.h + # in their source tree... + if(EXISTS ${CMAKE_CURRENT_SOURCE_DIR}/zconf.h) + message(FATAL_ERROR + "You must remove ${CMAKE_CURRENT_SOURCE_DIR}/zconf.h " + "from the source tree. This file is included with zlib " + "but CMake generates this file for you automatically " + "in the build directory.") + endif() +endif() + +configure_file(${CMAKE_CURRENT_SOURCE_DIR}/zconf.h.cmakein + ${CMAKE_CURRENT_BINARY_DIR}/zconf.h @ONLY) +include_directories(${CMAKE_CURRENT_BINARY_DIR}) + + +#============================================================================ +# zlib +#============================================================================ + +set(ZLIB_PUBLIC_HDRS + ${CMAKE_CURRENT_BINARY_DIR}/zconf.h + zlib.h +) +set(ZLIB_PRIVATE_HDRS + crc32.h + deflate.h + gzguts.h + inffast.h + inffixed.h + inflate.h + inftrees.h + trees.h + zutil.h +) +set(ZLIB_SRCS + adler32.c + compress.c + crc32.c + deflate.c + gzclose.c + gzlib.c + gzread.c + gzwrite.c + inflate.c + infback.c + inftrees.c + inffast.c + trees.c + uncompr.c + zutil.c + win32/zlib1.rc +) + +# parse the full version number from zlib.h and include in ZLIB_FULL_VERSION +file(READ ${CMAKE_CURRENT_SOURCE_DIR}/zlib.h _zlib_h_contents) +string(REGEX REPLACE ".*#define[ \t]+ZLIB_VERSION[ \t]+\"([0-9A-Za-z.]+)\".*" + "\\1" ZLIB_FULL_VERSION ${_zlib_h_contents}) + +if(MINGW) + # This gets us DLL resource information when compiling on MinGW. + add_custom_command(OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/zlib1rc.obj + COMMAND windres.exe + -D GCC_WINDRES + -I ${CMAKE_CURRENT_SOURCE_DIR} + -I ${CMAKE_CURRENT_BINARY_DIR} + -o ${CMAKE_CURRENT_BINARY_DIR}/zlib1rc.obj + -i ${CMAKE_CURRENT_SOURCE_DIR}/win32/zlib1.rc) + set(ZLIB_SRCS ${ZLIB_SRCS} ${CMAKE_CURRENT_BINARY_DIR}/zlib1rc.obj) +endif(MINGW) + +add_library(zlib ${ZLIB_SRCS} ${ZLIB_PUBLIC_HDRS} ${ZLIB_PRIVATE_HDRS}) +set_target_properties(zlib PROPERTIES DEFINE_SYMBOL ZLIB_DLL) + +set_target_properties(zlib PROPERTIES SOVERSION 1) + +if(NOT CYGWIN) + # This property causes shared libraries on Linux to have the full version + # encoded into their final filename. We disable this on Cygwin because + # it causes cygz-${ZLIB_FULL_VERSION}.dll to be created when cygz.dll + # seems to be the default. + # + # This has no effect with MSVC, on that platform the version info for + # the DLL comes from the resource file win32/zlib1.rc + set_target_properties(zlib PROPERTIES VERSION ${ZLIB_FULL_VERSION}) +endif() + +if(UNIX) + # On unix-like platforms the library is almost always called libz + set_target_properties(zlib PROPERTIES OUTPUT_NAME z) +elseif(BUILD_SHARED_LIBS AND WIN32) + # Creates zlib1.dll when building shared library version + set_target_properties(zlib PROPERTIES SUFFIX "1.dll") +endif() + +if(NOT SKIP_INSTALL_LIBRARIES AND NOT SKIP_INSTALL_ALL ) + install(TARGETS zlib + RUNTIME DESTINATION bin + ARCHIVE DESTINATION lib + LIBRARY DESTINATION lib ) +endif() +if(NOT SKIP_INSTALL_HEADERS AND NOT SKIP_INSTALL_ALL ) + install(FILES ${ZLIB_PUBLIC_HDRS} DESTINATION include) +endif() +if(NOT SKIP_INSTALL_FILES AND NOT SKIP_INSTALL_ALL ) + install(FILES zlib.3 DESTINATION share/man/man3) +endif() + +#============================================================================ +# Example binaries +#============================================================================ + +add_executable(example example.c) +target_link_libraries(example zlib) +add_test(example example) + +add_executable(minigzip minigzip.c) +target_link_libraries(minigzip zlib) + +if(HAVE_OFF64_T) + add_executable(example64 example.c) + target_link_libraries(example64 zlib) + set_target_properties(example64 PROPERTIES COMPILE_FLAGS "-D_FILE_OFFSET_BITS=64") + add_test(example64 example64) + + add_executable(minigzip64 minigzip.c) + target_link_libraries(minigzip64 zlib) + set_target_properties(minigzip64 PROPERTIES COMPILE_FLAGS "-D_FILE_OFFSET_BITS=64") +endif() diff --git a/zlib/ChangeLog b/zlib/ChangeLog new file mode 100644 index 0000000..f310bb0 --- /dev/null +++ b/zlib/ChangeLog @@ -0,0 +1,1208 @@ + + ChangeLog file for zlib + +Changes in 1.2.5 (19 Apr 2010) +- Disable visibility attribute in win32/Makefile.gcc [Bar-Lev] +- Default to libdir as sharedlibdir in configure [Nieder] +- Update copyright dates on modified source files +- Update trees.c to be able to generate modified trees.h +- Exit configure for MinGW, suggesting win32/Makefile.gcc + +Changes in 1.2.4.5 (18 Apr 2010) +- Set sharedlibdir in configure [Torok] +- Set LDFLAGS in Makefile.in [Bar-Lev] +- Avoid mkdir objs race condition in Makefile.in [Bowler] +- Add ZLIB_INTERNAL in front of internal inter-module functions and arrays +- Define ZLIB_INTERNAL to hide internal functions and arrays for GNU C +- Don't use hidden attribute when it is a warning generator (e.g. Solaris) + +Changes in 1.2.4.4 (18 Apr 2010) +- Fix CROSS_PREFIX executable testing, CHOST extract, mingw* [Torok] +- Undefine _LARGEFILE64_SOURCE in zconf.h if it is zero, but not if empty +- Try to use bash or ksh regardless of functionality of /bin/sh +- Fix configure incompatibility with NetBSD sh +- Remove attempt to run under bash or ksh since have better NetBSD fix +- Fix win32/Makefile.gcc for MinGW [Bar-Lev] +- Add diagnostic messages when using CROSS_PREFIX in configure +- Added --sharedlibdir option to configure [Weigelt] +- Use hidden visibility attribute when available [Frysinger] + +Changes in 1.2.4.3 (10 Apr 2010) +- Only use CROSS_PREFIX in configure for ar and ranlib if they exist +- Use CROSS_PREFIX for nm [Bar-Lev] +- Assume _LARGEFILE64_SOURCE defined is equivalent to true +- Avoid use of undefined symbols in #if with && and || +- Make *64 prototypes in gzguts.h consistent with functions +- Add -shared load option for MinGW in configure [Bowler] +- Move z_off64_t to public interface, use instead of off64_t +- Remove ! from shell test in configure (not portable to Solaris) +- Change +0 macro tests to -0 for possibly increased portability + +Changes in 1.2.4.2 (9 Apr 2010) +- Add consistent carriage returns to readme.txt's in masmx86 and masmx64 +- Really provide prototypes for *64 functions when building without LFS +- Only define unlink() in minigzip.c if unistd.h not included +- Update README to point to contrib/vstudio project files +- Move projects/vc6 to old/ and remove projects/ +- Include stdlib.h in minigzip.c for setmode() definition under WinCE +- Clean up assembler builds in win32/Makefile.msc [Rowe] +- Include sys/types.h for Microsoft for off_t definition +- Fix memory leak on error in gz_open() +- Symbolize nm as $NM in configure [Weigelt] +- Use TEST_LDSHARED instead of LDSHARED to link test programs [Weigelt] +- Add +0 to _FILE_OFFSET_BITS and _LFS64_LARGEFILE in case not defined +- Fix bug in gzeof() to take into account unused input data +- Avoid initialization of structures with variables in puff.c +- Updated win32/README-WIN32.txt [Rowe] + +Changes in 1.2.4.1 (28 Mar 2010) +- Remove the use of [a-z] constructs for sed in configure [gentoo 310225] +- Remove $(SHAREDLIB) from LIBS in Makefile.in [Creech] +- Restore "for debugging" comment on sprintf() in gzlib.c +- Remove fdopen for MVS from gzguts.h +- Put new README-WIN32.txt in win32 [Rowe] +- Add check for shell to configure and invoke another shell if needed +- Fix big fat stinking bug in gzseek() on uncompressed files +- Remove vestigial F_OPEN64 define in zutil.h +- Set and check the value of _LARGEFILE_SOURCE and _LARGEFILE64_SOURCE +- Avoid errors on non-LFS systems when applications define LFS macros +- Set EXE to ".exe" in configure for MINGW [Kahle] +- Match crc32() in crc32.c exactly to the prototype in zlib.h [Sherrill] +- Add prefix for cross-compilation in win32/makefile.gcc [Bar-Lev] +- Add DLL install in win32/makefile.gcc [Bar-Lev] +- Allow Linux* or linux* from uname in configure [Bar-Lev] +- Allow ldconfig to be redefined in configure and Makefile.in [Bar-Lev] +- Add cross-compilation prefixes to configure [Bar-Lev] +- Match type exactly in gz_load() invocation in gzread.c +- Match type exactly of zcalloc() in zutil.c to zlib.h alloc_func +- Provide prototypes for *64 functions when building zlib without LFS +- Don't use -lc when linking shared library on MinGW +- Remove errno.h check in configure and vestigial errno code in zutil.h + +Changes in 1.2.4 (14 Mar 2010) +- Fix VER3 extraction in configure for no fourth subversion +- Update zlib.3, add docs to Makefile.in to make .pdf out of it +- Add zlib.3.pdf to distribution +- Don't set error code in gzerror() if passed pointer is NULL +- Apply destination directory fixes to CMakeLists.txt [Lowman] +- Move #cmakedefine's to a new zconf.in.cmakein +- Restore zconf.h for builds that don't use configure or cmake +- Add distclean to dummy Makefile for convenience +- Update and improve INDEX, README, and FAQ +- Update CMakeLists.txt for the return of zconf.h [Lowman] +- Update contrib/vstudio/vc9 and vc10 [Vollant] +- Change libz.dll.a back to libzdll.a in win32/Makefile.gcc +- Apply license and readme changes to contrib/asm686 [Raiter] +- Check file name lengths and add -c option in minigzip.c [Li] +- Update contrib/amd64 and contrib/masmx86/ [Vollant] +- Avoid use of "eof" parameter in trees.c to not shadow library variable +- Update make_vms.com for removal of zlibdefs.h [Zinser] +- Update assembler code and vstudio projects in contrib [Vollant] +- Remove outdated assembler code contrib/masm686 and contrib/asm586 +- Remove old vc7 and vc8 from contrib/vstudio +- Update win32/Makefile.msc, add ZLIB_VER_SUBREVISION [Rowe] +- Fix memory leaks in gzclose_r() and gzclose_w(), file leak in gz_open() +- Add contrib/gcc_gvmat64 for longest_match and inflate_fast [Vollant] +- Remove *64 functions from win32/zlib.def (they're not 64-bit yet) +- Fix bug in void-returning vsprintf() case in gzwrite.c +- Fix name change from inflate.h in contrib/inflate86/inffas86.c +- Check if temporary file exists before removing in make_vms.com [Zinser] +- Fix make install and uninstall for --static option +- Fix usage of _MSC_VER in gzguts.h and zutil.h [Truta] +- Update readme.txt in contrib/masmx64 and masmx86 to assemble + +Changes in 1.2.3.9 (21 Feb 2010) +- Expunge gzio.c +- Move as400 build information to old +- Fix updates in contrib/minizip and contrib/vstudio +- Add const to vsnprintf test in configure to avoid warnings [Weigelt] +- Delete zconf.h (made by configure) [Weigelt] +- Change zconf.in.h to zconf.h.in per convention [Weigelt] +- Check for NULL buf in gzgets() +- Return empty string for gzgets() with len == 1 (like fgets()) +- Fix description of gzgets() in zlib.h for end-of-file, NULL return +- Update minizip to 1.1 [Vollant] +- Avoid MSVC loss of data warnings in gzread.c, gzwrite.c +- Note in zlib.h that gzerror() should be used to distinguish from EOF +- Remove use of snprintf() from gzlib.c +- Fix bug in gzseek() +- Update contrib/vstudio, adding vc9 and vc10 [Kuno, Vollant] +- Fix zconf.h generation in CMakeLists.txt [Lowman] +- Improve comments in zconf.h where modified by configure + +Changes in 1.2.3.8 (13 Feb 2010) +- Clean up text files (tabs, trailing whitespace, etc.) [Oberhumer] +- Use z_off64_t in gz_zero() and gz_skip() to match state->skip +- Avoid comparison problem when sizeof(int) == sizeof(z_off64_t) +- Revert to Makefile.in from 1.2.3.6 (live with the clutter) +- Fix missing error return in gzflush(), add zlib.h note +- Add *64 functions to zlib.map [Levin] +- Fix signed/unsigned comparison in gz_comp() +- Use SFLAGS when testing shared linking in configure +- Add --64 option to ./configure to use -m64 with gcc +- Fix ./configure --help to correctly name options +- Have make fail if a test fails [Levin] +- Avoid buffer overrun in contrib/masmx64/gvmat64.asm [Simpson] +- Remove assembler object files from contrib + +Changes in 1.2.3.7 (24 Jan 2010) +- Always gzopen() with O_LARGEFILE if available +- Fix gzdirect() to work immediately after gzopen() or gzdopen() +- Make gzdirect() more precise when the state changes while reading +- Improve zlib.h documentation in many places +- Catch memory allocation failure in gz_open() +- Complete close operation if seek forward in gzclose_w() fails +- Return Z_ERRNO from gzclose_r() if close() fails +- Return Z_STREAM_ERROR instead of EOF for gzclose() being passed NULL +- Return zero for gzwrite() errors to match zlib.h description +- Return -1 on gzputs() error to match zlib.h description +- Add zconf.in.h to allow recovery from configure modification [Weigelt] +- Fix static library permissions in Makefile.in [Weigelt] +- Avoid warnings in configure tests that hide functionality [Weigelt] +- Add *BSD and DragonFly to Linux case in configure [gentoo 123571] +- Change libzdll.a to libz.dll.a in win32/Makefile.gcc [gentoo 288212] +- Avoid access of uninitialized data for first inflateReset2 call [Gomes] +- Keep object files in subdirectories to reduce the clutter somewhat +- Remove default Makefile and zlibdefs.h, add dummy Makefile +- Add new external functions to Z_PREFIX, remove duplicates, z_z_ -> z_ +- Remove zlibdefs.h completely -- modify zconf.h instead + +Changes in 1.2.3.6 (17 Jan 2010) +- Avoid void * arithmetic in gzread.c and gzwrite.c +- Make compilers happier with const char * for gz_error message +- Avoid unused parameter warning in inflate.c +- Avoid signed-unsigned comparison warning in inflate.c +- Indent #pragma's for traditional C +- Fix usage of strwinerror() in glib.c, change to gz_strwinerror() +- Correct email address in configure for system options +- Update make_vms.com and add make_vms.com to contrib/minizip [Zinser] +- Update zlib.map [Brown] +- Fix Makefile.in for Solaris 10 make of example64 and minizip64 [Torok] +- Apply various fixes to CMakeLists.txt [Lowman] +- Add checks on len in gzread() and gzwrite() +- Add error message for no more room for gzungetc() +- Remove zlib version check in gzwrite() +- Defer compression of gzprintf() result until need to +- Use snprintf() in gzdopen() if available +- Remove USE_MMAP configuration determination (only used by minigzip) +- Remove examples/pigz.c (available separately) +- Update examples/gun.c to 1.6 + +Changes in 1.2.3.5 (8 Jan 2010) +- Add space after #if in zutil.h for some compilers +- Fix relatively harmless bug in deflate_fast() [Exarevsky] +- Fix same problem in deflate_slow() +- Add $(SHAREDLIBV) to LIBS in Makefile.in [Brown] +- Add deflate_rle() for faster Z_RLE strategy run-length encoding +- Add deflate_huff() for faster Z_HUFFMAN_ONLY encoding +- Change name of "write" variable in inffast.c to avoid library collisions +- Fix premature EOF from gzread() in gzio.c [Brown] +- Use zlib header window size if windowBits is 0 in inflateInit2() +- Remove compressBound() call in deflate.c to avoid linking compress.o +- Replace use of errno in gz* with functions, support WinCE [Alves] +- Provide alternative to perror() in minigzip.c for WinCE [Alves] +- Don't use _vsnprintf on later versions of MSVC [Lowman] +- Add CMake build script and input file [Lowman] +- Update contrib/minizip to 1.1 [Svensson, Vollant] +- Moved nintendods directory from contrib to . +- Replace gzio.c with a new set of routines with the same functionality +- Add gzbuffer(), gzoffset(), gzclose_r(), gzclose_w() as part of above +- Update contrib/minizip to 1.1b +- Change gzeof() to return 0 on error instead of -1 to agree with zlib.h + +Changes in 1.2.3.4 (21 Dec 2009) +- Use old school .SUFFIXES in Makefile.in for FreeBSD compatibility +- Update comments in configure and Makefile.in for default --shared +- Fix test -z's in configure [Marquess] +- Build examplesh and minigzipsh when not testing +- Change NULL's to Z_NULL's in deflate.c and in comments in zlib.h +- Import LDFLAGS from the environment in configure +- Fix configure to populate SFLAGS with discovered CFLAGS options +- Adapt make_vms.com to the new Makefile.in [Zinser] +- Add zlib2ansi script for C++ compilation [Marquess] +- Add _FILE_OFFSET_BITS=64 test to make test (when applicable) +- Add AMD64 assembler code for longest match to contrib [Teterin] +- Include options from $SFLAGS when doing $LDSHARED +- Simplify 64-bit file support by introducing z_off64_t type +- Make shared object files in objs directory to work around old Sun cc +- Use only three-part version number for Darwin shared compiles +- Add rc option to ar in Makefile.in for when ./configure not run +- Add -WI,-rpath,. to LDFLAGS for OSF 1 V4* +- Set LD_LIBRARYN32_PATH for SGI IRIX shared compile +- Protect against _FILE_OFFSET_BITS being defined when compiling zlib +- Rename Makefile.in targets allstatic to static and allshared to shared +- Fix static and shared Makefile.in targets to be independent +- Correct error return bug in gz_open() by setting state [Brown] +- Put spaces before ;;'s in configure for better sh compatibility +- Add pigz.c (parallel implementation of gzip) to examples/ +- Correct constant in crc32.c to UL [Leventhal] +- Reject negative lengths in crc32_combine() +- Add inflateReset2() function to work like inflateEnd()/inflateInit2() +- Include sys/types.h for _LARGEFILE64_SOURCE [Brown] +- Correct typo in doc/algorithm.txt [Janik] +- Fix bug in adler32_combine() [Zhu] +- Catch missing-end-of-block-code error in all inflates and in puff + Assures that random input to inflate eventually results in an error +- Added enough.c (calculation of ENOUGH for inftrees.h) to examples/ +- Update ENOUGH and its usage to reflect discovered bounds +- Fix gzerror() error report on empty input file [Brown] +- Add ush casts in trees.c to avoid pedantic runtime errors +- Fix typo in zlib.h uncompress() description [Reiss] +- Correct inflate() comments with regard to automatic header detection +- Remove deprecation comment on Z_PARTIAL_FLUSH (it stays) +- Put new version of gzlog (2.0) in examples with interruption recovery +- Add puff compile option to permit invalid distance-too-far streams +- Add puff TEST command options, ability to read piped input +- Prototype the *64 functions in zlib.h when _FILE_OFFSET_BITS == 64, but + _LARGEFILE64_SOURCE not defined +- Fix Z_FULL_FLUSH to truly erase the past by resetting s->strstart +- Fix deflateSetDictionary() to use all 32K for output consistency +- Remove extraneous #define MIN_LOOKAHEAD in deflate.c (in deflate.h) +- Clear bytes after deflate lookahead to avoid use of uninitialized data +- Change a limit in inftrees.c to be more transparent to Coverity Prevent +- Update win32/zlib.def with exported symbols from zlib.h +- Correct spelling error in zlib.h [Willem] +- Allow Z_BLOCK for deflate() to force a new block +- Allow negative bits in inflatePrime() to delete existing bit buffer +- Add Z_TREES flush option to inflate() to return at end of trees +- Add inflateMark() to return current state information for random access +- Add Makefile for NintendoDS to contrib [Costa] +- Add -w in configure compile tests to avoid spurious warnings [Beucler] +- Fix typos in zlib.h comments for deflateSetDictionary() +- Fix EOF detection in transparent gzread() [Maier] + +Changes in 1.2.3.3 (2 October 2006) +- Make --shared the default for configure, add a --static option +- Add compile option to permit invalid distance-too-far streams +- Add inflateUndermine() function which is required to enable above +- Remove use of "this" variable name for C++ compatibility [Marquess] +- Add testing of shared library in make test, if shared library built +- Use ftello() and fseeko() if available instead of ftell() and fseek() +- Provide two versions of all functions that use the z_off_t type for + binary compatibility -- a normal version and a 64-bit offset version, + per the Large File Support Extension when _LARGEFILE64_SOURCE is + defined; use the 64-bit versions by default when _FILE_OFFSET_BITS + is defined to be 64 +- Add a --uname= option to configure to perhaps help with cross-compiling + +Changes in 1.2.3.2 (3 September 2006) +- Turn off silly Borland warnings [Hay] +- Use off64_t and define _LARGEFILE64_SOURCE when present +- Fix missing dependency on inffixed.h in Makefile.in +- Rig configure --shared to build both shared and static [Teredesai, Truta] +- Remove zconf.in.h and instead create a new zlibdefs.h file +- Fix contrib/minizip/unzip.c non-encrypted after encrypted [Vollant] +- Add treebuild.xml (see http://treebuild.metux.de/) [Weigelt] + +Changes in 1.2.3.1 (16 August 2006) +- Add watcom directory with OpenWatcom make files [Daniel] +- Remove #undef of FAR in zconf.in.h for MVS [Fedtke] +- Update make_vms.com [Zinser] +- Use -fPIC for shared build in configure [Teredesai, Nicholson] +- Use only major version number for libz.so on IRIX and OSF1 [Reinholdtsen] +- Use fdopen() (not _fdopen()) for Interix in zutil.h [BŠck] +- Add some FAQ entries about the contrib directory +- Update the MVS question in the FAQ +- Avoid extraneous reads after EOF in gzio.c [Brown] +- Correct spelling of "successfully" in gzio.c [Randers-Pehrson] +- Add comments to zlib.h about gzerror() usage [Brown] +- Set extra flags in gzip header in gzopen() like deflate() does +- Make configure options more compatible with double-dash conventions + [Weigelt] +- Clean up compilation under Solaris SunStudio cc [Rowe, Reinholdtsen] +- Fix uninstall target in Makefile.in [Truta] +- Add pkgconfig support [Weigelt] +- Use $(DESTDIR) macro in Makefile.in [Reinholdtsen, Weigelt] +- Replace set_data_type() with a more accurate detect_data_type() in + trees.c, according to the txtvsbin.txt document [Truta] +- Swap the order of #include and #include "zlib.h" in + gzio.c, example.c and minigzip.c [Truta] +- Shut up annoying VS2005 warnings about standard C deprecation [Rowe, + Truta] (where?) +- Fix target "clean" from win32/Makefile.bor [Truta] +- Create .pdb and .manifest files in win32/makefile.msc [Ziegler, Rowe] +- Update zlib www home address in win32/DLL_FAQ.txt [Truta] +- Update contrib/masmx86/inffas32.asm for VS2005 [Vollant, Van Wassenhove] +- Enable browse info in the "Debug" and "ASM Debug" configurations in + the Visual C++ 6 project, and set (non-ASM) "Debug" as default [Truta] +- Add pkgconfig support [Weigelt] +- Add ZLIB_VER_MAJOR, ZLIB_VER_MINOR and ZLIB_VER_REVISION in zlib.h, + for use in win32/zlib1.rc [Polushin, Rowe, Truta] +- Add a document that explains the new text detection scheme to + doc/txtvsbin.txt [Truta] +- Add rfc1950.txt, rfc1951.txt and rfc1952.txt to doc/ [Truta] +- Move algorithm.txt into doc/ [Truta] +- Synchronize FAQ with website +- Fix compressBound(), was low for some pathological cases [Fearnley] +- Take into account wrapper variations in deflateBound() +- Set examples/zpipe.c input and output to binary mode for Windows +- Update examples/zlib_how.html with new zpipe.c (also web site) +- Fix some warnings in examples/gzlog.c and examples/zran.c (it seems + that gcc became pickier in 4.0) +- Add zlib.map for Linux: "All symbols from zlib-1.1.4 remain + un-versioned, the patch adds versioning only for symbols introduced in + zlib-1.2.0 or later. It also declares as local those symbols which are + not designed to be exported." [Levin] +- Update Z_PREFIX list in zconf.in.h, add --zprefix option to configure +- Do not initialize global static by default in trees.c, add a response + NO_INIT_GLOBAL_POINTERS to initialize them if needed [Marquess] +- Don't use strerror() in gzio.c under WinCE [Yakimov] +- Don't use errno.h in zutil.h under WinCE [Yakimov] +- Move arguments for AR to its usage to allow replacing ar [Marot] +- Add HAVE_VISIBILITY_PRAGMA in zconf.in.h for Mozilla [Randers-Pehrson] +- Improve inflateInit() and inflateInit2() documentation +- Fix structure size comment in inflate.h +- Change configure help option from --h* to --help [Santos] + +Changes in 1.2.3 (18 July 2005) +- Apply security vulnerability fixes to contrib/infback9 as well +- Clean up some text files (carriage returns, trailing space) +- Update testzlib, vstudio, masmx64, and masmx86 in contrib [Vollant] + +Changes in 1.2.2.4 (11 July 2005) +- Add inflatePrime() function for starting inflation at bit boundary +- Avoid some Visual C warnings in deflate.c +- Avoid more silly Visual C warnings in inflate.c and inftrees.c for 64-bit + compile +- Fix some spelling errors in comments [Betts] +- Correct inflateInit2() error return documentation in zlib.h +- Add zran.c example of compressed data random access to examples + directory, shows use of inflatePrime() +- Fix cast for assignments to strm->state in inflate.c and infback.c +- Fix zlibCompileFlags() in zutil.c to use 1L for long shifts [Oberhumer] +- Move declarations of gf2 functions to right place in crc32.c [Oberhumer] +- Add cast in trees.c t avoid a warning [Oberhumer] +- Avoid some warnings in fitblk.c, gun.c, gzjoin.c in examples [Oberhumer] +- Update make_vms.com [Zinser] +- Initialize state->write in inflateReset() since copied in inflate_fast() +- Be more strict on incomplete code sets in inflate_table() and increase + ENOUGH and MAXD -- this repairs a possible security vulnerability for + invalid inflate input. Thanks to Tavis Ormandy and Markus Oberhumer for + discovering the vulnerability and providing test cases. +- Add ia64 support to configure for HP-UX [Smith] +- Add error return to gzread() for format or i/o error [Levin] +- Use malloc.h for OS/2 [Necasek] + +Changes in 1.2.2.3 (27 May 2005) +- Replace 1U constants in inflate.c and inftrees.c for 64-bit compile +- Typecast fread() return values in gzio.c [Vollant] +- Remove trailing space in minigzip.c outmode (VC++ can't deal with it) +- Fix crc check bug in gzread() after gzungetc() [Heiner] +- Add the deflateTune() function to adjust internal compression parameters +- Add a fast gzip decompressor, gun.c, to examples (use of inflateBack) +- Remove an incorrect assertion in examples/zpipe.c +- Add C++ wrapper in infback9.h [Donais] +- Fix bug in inflateCopy() when decoding fixed codes +- Note in zlib.h how much deflateSetDictionary() actually uses +- Remove USE_DICT_HEAD in deflate.c (would mess up inflate if used) +- Add _WIN32_WCE to define WIN32 in zconf.in.h [Spencer] +- Don't include stderr.h or errno.h for _WIN32_WCE in zutil.h [Spencer] +- Add gzdirect() function to indicate transparent reads +- Update contrib/minizip [Vollant] +- Fix compilation of deflate.c when both ASMV and FASTEST [Oberhumer] +- Add casts in crc32.c to avoid warnings [Oberhumer] +- Add contrib/masmx64 [Vollant] +- Update contrib/asm586, asm686, masmx86, testzlib, vstudio [Vollant] + +Changes in 1.2.2.2 (30 December 2004) +- Replace structure assignments in deflate.c and inflate.c with zmemcpy to + avoid implicit memcpy calls (portability for no-library compilation) +- Increase sprintf() buffer size in gzdopen() to allow for large numbers +- Add INFLATE_STRICT to check distances against zlib header +- Improve WinCE errno handling and comments [Chang] +- Remove comment about no gzip header processing in FAQ +- Add Z_FIXED strategy option to deflateInit2() to force fixed trees +- Add updated make_vms.com [Coghlan], update README +- Create a new "examples" directory, move gzappend.c there, add zpipe.c, + fitblk.c, gzlog.[ch], gzjoin.c, and zlib_how.html. +- Add FAQ entry and comments in deflate.c on uninitialized memory access +- Add Solaris 9 make options in configure [Gilbert] +- Allow strerror() usage in gzio.c for STDC +- Fix DecompressBuf in contrib/delphi/ZLib.pas [ManChesTer] +- Update contrib/masmx86/inffas32.asm and gvmat32.asm [Vollant] +- Use z_off_t for adler32_combine() and crc32_combine() lengths +- Make adler32() much faster for small len +- Use OS_CODE in deflate() default gzip header + +Changes in 1.2.2.1 (31 October 2004) +- Allow inflateSetDictionary() call for raw inflate +- Fix inflate header crc check bug for file names and comments +- Add deflateSetHeader() and gz_header structure for custom gzip headers +- Add inflateGetheader() to retrieve gzip headers +- Add crc32_combine() and adler32_combine() functions +- Add alloc_func, free_func, in_func, out_func to Z_PREFIX list +- Use zstreamp consistently in zlib.h (inflate_back functions) +- Remove GUNZIP condition from definition of inflate_mode in inflate.h + and in contrib/inflate86/inffast.S [Truta, Anderson] +- Add support for AMD64 in contrib/inflate86/inffas86.c [Anderson] +- Update projects/README.projects and projects/visualc6 [Truta] +- Update win32/DLL_FAQ.txt [Truta] +- Avoid warning under NO_GZCOMPRESS in gzio.c; fix typo [Truta] +- Deprecate Z_ASCII; use Z_TEXT instead [Truta] +- Use a new algorithm for setting strm->data_type in trees.c [Truta] +- Do not define an exit() prototype in zutil.c unless DEBUG defined +- Remove prototype of exit() from zutil.c, example.c, minigzip.c [Truta] +- Add comment in zlib.h for Z_NO_FLUSH parameter to deflate() +- Fix Darwin build version identification [Peterson] + +Changes in 1.2.2 (3 October 2004) +- Update zlib.h comments on gzip in-memory processing +- Set adler to 1 in inflateReset() to support Java test suite [Walles] +- Add contrib/dotzlib [Ravn] +- Update win32/DLL_FAQ.txt [Truta] +- Update contrib/minizip [Vollant] +- Move contrib/visual-basic.txt to old/ [Truta] +- Fix assembler builds in projects/visualc6/ [Truta] + +Changes in 1.2.1.2 (9 September 2004) +- Update INDEX file +- Fix trees.c to update strm->data_type (no one ever noticed!) +- Fix bug in error case in inflate.c, infback.c, and infback9.c [Brown] +- Add "volatile" to crc table flag declaration (for DYNAMIC_CRC_TABLE) +- Add limited multitasking protection to DYNAMIC_CRC_TABLE +- Add NO_vsnprintf for VMS in zutil.h [Mozilla] +- Don't declare strerror() under VMS [Mozilla] +- Add comment to DYNAMIC_CRC_TABLE to use get_crc_table() to initialize +- Update contrib/ada [Anisimkov] +- Update contrib/minizip [Vollant] +- Fix configure to not hardcode directories for Darwin [Peterson] +- Fix gzio.c to not return error on empty files [Brown] +- Fix indentation; update version in contrib/delphi/ZLib.pas and + contrib/pascal/zlibpas.pas [Truta] +- Update mkasm.bat in contrib/masmx86 [Truta] +- Update contrib/untgz [Truta] +- Add projects/README.projects [Truta] +- Add project for MS Visual C++ 6.0 in projects/visualc6 [Cadieux, Truta] +- Update win32/DLL_FAQ.txt [Truta] +- Update list of Z_PREFIX symbols in zconf.h [Randers-Pehrson, Truta] +- Remove an unnecessary assignment to curr in inftrees.c [Truta] +- Add OS/2 to exe builds in configure [Poltorak] +- Remove err dummy parameter in zlib.h [Kientzle] + +Changes in 1.2.1.1 (9 January 2004) +- Update email address in README +- Several FAQ updates +- Fix a big fat bug in inftrees.c that prevented decoding valid + dynamic blocks with only literals and no distance codes -- + Thanks to "Hot Emu" for the bug report and sample file +- Add a note to puff.c on no distance codes case. + +Changes in 1.2.1 (17 November 2003) +- Remove a tab in contrib/gzappend/gzappend.c +- Update some interfaces in contrib for new zlib functions +- Update zlib version number in some contrib entries +- Add Windows CE definition for ptrdiff_t in zutil.h [Mai, Truta] +- Support shared libraries on Hurd and KFreeBSD [Brown] +- Fix error in NO_DIVIDE option of adler32.c + +Changes in 1.2.0.8 (4 November 2003) +- Update version in contrib/delphi/ZLib.pas and contrib/pascal/zlibpas.pas +- Add experimental NO_DIVIDE #define in adler32.c + - Possibly faster on some processors (let me know if it is) +- Correct Z_BLOCK to not return on first inflate call if no wrap +- Fix strm->data_type on inflate() return to correctly indicate EOB +- Add deflatePrime() function for appending in the middle of a byte +- Add contrib/gzappend for an example of appending to a stream +- Update win32/DLL_FAQ.txt [Truta] +- Delete Turbo C comment in README [Truta] +- Improve some indentation in zconf.h [Truta] +- Fix infinite loop on bad input in configure script [Church] +- Fix gzeof() for concatenated gzip files [Johnson] +- Add example to contrib/visual-basic.txt [Michael B.] +- Add -p to mkdir's in Makefile.in [vda] +- Fix configure to properly detect presence or lack of printf functions +- Add AS400 support [Monnerat] +- Add a little Cygwin support [Wilson] + +Changes in 1.2.0.7 (21 September 2003) +- Correct some debug formats in contrib/infback9 +- Cast a type in a debug statement in trees.c +- Change search and replace delimiter in configure from % to # [Beebe] +- Update contrib/untgz to 0.2 with various fixes [Truta] +- Add build support for Amiga [Nikl] +- Remove some directories in old that have been updated to 1.2 +- Add dylib building for Mac OS X in configure and Makefile.in +- Remove old distribution stuff from Makefile +- Update README to point to DLL_FAQ.txt, and add comment on Mac OS X +- Update links in README + +Changes in 1.2.0.6 (13 September 2003) +- Minor FAQ updates +- Update contrib/minizip to 1.00 [Vollant] +- Remove test of gz functions in example.c when GZ_COMPRESS defined [Truta] +- Update POSTINC comment for 68060 [Nikl] +- Add contrib/infback9 with deflate64 decoding (unsupported) +- For MVS define NO_vsnprintf and undefine FAR [van Burik] +- Add pragma for fdopen on MVS [van Burik] + +Changes in 1.2.0.5 (8 September 2003) +- Add OF to inflateBackEnd() declaration in zlib.h +- Remember start when using gzdopen in the middle of a file +- Use internal off_t counters in gz* functions to properly handle seeks +- Perform more rigorous check for distance-too-far in inffast.c +- Add Z_BLOCK flush option to return from inflate at block boundary +- Set strm->data_type on return from inflate + - Indicate bits unused, if at block boundary, and if in last block +- Replace size_t with ptrdiff_t in crc32.c, and check for correct size +- Add condition so old NO_DEFLATE define still works for compatibility +- FAQ update regarding the Windows DLL [Truta] +- INDEX update: add qnx entry, remove aix entry [Truta] +- Install zlib.3 into mandir [Wilson] +- Move contrib/zlib_dll_FAQ.txt to win32/DLL_FAQ.txt; update [Truta] +- Adapt the zlib interface to the new DLL convention guidelines [Truta] +- Introduce ZLIB_WINAPI macro to allow the export of functions using + the WINAPI calling convention, for Visual Basic [Vollant, Truta] +- Update msdos and win32 scripts and makefiles [Truta] +- Export symbols by name, not by ordinal, in win32/zlib.def [Truta] +- Add contrib/ada [Anisimkov] +- Move asm files from contrib/vstudio/vc70_32 to contrib/asm386 [Truta] +- Rename contrib/asm386 to contrib/masmx86 [Truta, Vollant] +- Add contrib/masm686 [Truta] +- Fix offsets in contrib/inflate86 and contrib/masmx86/inffas32.asm + [Truta, Vollant] +- Update contrib/delphi; rename to contrib/pascal; add example [Truta] +- Remove contrib/delphi2; add a new contrib/delphi [Truta] +- Avoid inclusion of the nonstandard in contrib/iostream, + and fix some method prototypes [Truta] +- Fix the ZCR_SEED2 constant to avoid warnings in contrib/minizip + [Truta] +- Avoid the use of backslash (\) in contrib/minizip [Vollant] +- Fix file time handling in contrib/untgz; update makefiles [Truta] +- Update contrib/vstudio/vc70_32 to comply with the new DLL guidelines + [Vollant] +- Remove contrib/vstudio/vc15_16 [Vollant] +- Rename contrib/vstudio/vc70_32 to contrib/vstudio/vc7 [Truta] +- Update README.contrib [Truta] +- Invert the assignment order of match_head and s->prev[...] in + INSERT_STRING [Truta] +- Compare TOO_FAR with 32767 instead of 32768, to avoid 16-bit warnings + [Truta] +- Compare function pointers with 0, not with NULL or Z_NULL [Truta] +- Fix prototype of syncsearch in inflate.c [Truta] +- Introduce ASMINF macro to be enabled when using an ASM implementation + of inflate_fast [Truta] +- Change NO_DEFLATE to NO_GZCOMPRESS [Truta] +- Modify test_gzio in example.c to take a single file name as a + parameter [Truta] +- Exit the example.c program if gzopen fails [Truta] +- Add type casts around strlen in example.c [Truta] +- Remove casting to sizeof in minigzip.c; give a proper type + to the variable compared with SUFFIX_LEN [Truta] +- Update definitions of STDC and STDC99 in zconf.h [Truta] +- Synchronize zconf.h with the new Windows DLL interface [Truta] +- Use SYS16BIT instead of __32BIT__ to distinguish between + 16- and 32-bit platforms [Truta] +- Use far memory allocators in small 16-bit memory models for + Turbo C [Truta] +- Add info about the use of ASMV, ASMINF and ZLIB_WINAPI in + zlibCompileFlags [Truta] +- Cygwin has vsnprintf [Wilson] +- In Windows16, OS_CODE is 0, as in MSDOS [Truta] +- In Cygwin, OS_CODE is 3 (Unix), not 11 (Windows32) [Wilson] + +Changes in 1.2.0.4 (10 August 2003) +- Minor FAQ updates +- Be more strict when checking inflateInit2's windowBits parameter +- Change NO_GUNZIP compile option to NO_GZIP to cover deflate as well +- Add gzip wrapper option to deflateInit2 using windowBits +- Add updated QNX rule in configure and qnx directory [Bonnefoy] +- Make inflate distance-too-far checks more rigorous +- Clean up FAR usage in inflate +- Add casting to sizeof() in gzio.c and minigzip.c + +Changes in 1.2.0.3 (19 July 2003) +- Fix silly error in gzungetc() implementation [Vollant] +- Update contrib/minizip and contrib/vstudio [Vollant] +- Fix printf format in example.c +- Correct cdecl support in zconf.in.h [Anisimkov] +- Minor FAQ updates + +Changes in 1.2.0.2 (13 July 2003) +- Add ZLIB_VERNUM in zlib.h for numerical preprocessor comparisons +- Attempt to avoid warnings in crc32.c for pointer-int conversion +- Add AIX to configure, remove aix directory [Bakker] +- Add some casts to minigzip.c +- Improve checking after insecure sprintf() or vsprintf() calls +- Remove #elif's from crc32.c +- Change leave label to inf_leave in inflate.c and infback.c to avoid + library conflicts +- Remove inflate gzip decoding by default--only enable gzip decoding by + special request for stricter backward compatibility +- Add zlibCompileFlags() function to return compilation information +- More typecasting in deflate.c to avoid warnings +- Remove leading underscore from _Capital #defines [Truta] +- Fix configure to link shared library when testing +- Add some Windows CE target adjustments [Mai] +- Remove #define ZLIB_DLL in zconf.h [Vollant] +- Add zlib.3 [Rodgers] +- Update RFC URL in deflate.c and algorithm.txt [Mai] +- Add zlib_dll_FAQ.txt to contrib [Truta] +- Add UL to some constants [Truta] +- Update minizip and vstudio [Vollant] +- Remove vestigial NEED_DUMMY_RETURN from zconf.in.h +- Expand use of NO_DUMMY_DECL to avoid all dummy structures +- Added iostream3 to contrib [Schwardt] +- Replace rewind() with fseek() for WinCE [Truta] +- Improve setting of zlib format compression level flags + - Report 0 for huffman and rle strategies and for level == 0 or 1 + - Report 2 only for level == 6 +- Only deal with 64K limit when necessary at compile time [Truta] +- Allow TOO_FAR check to be turned off at compile time [Truta] +- Add gzclearerr() function [Souza] +- Add gzungetc() function + +Changes in 1.2.0.1 (17 March 2003) +- Add Z_RLE strategy for run-length encoding [Truta] + - When Z_RLE requested, restrict matches to distance one + - Update zlib.h, minigzip.c, gzopen(), gzdopen() for Z_RLE +- Correct FASTEST compilation to allow level == 0 +- Clean up what gets compiled for FASTEST +- Incorporate changes to zconf.in.h [Vollant] + - Refine detection of Turbo C need for dummy returns + - Refine ZLIB_DLL compilation + - Include additional header file on VMS for off_t typedef +- Try to use _vsnprintf where it supplants vsprintf [Vollant] +- Add some casts in inffast.c +- Enchance comments in zlib.h on what happens if gzprintf() tries to + write more than 4095 bytes before compression +- Remove unused state from inflateBackEnd() +- Remove exit(0) from minigzip.c, example.c +- Get rid of all those darn tabs +- Add "check" target to Makefile.in that does the same thing as "test" +- Add "mostlyclean" and "maintainer-clean" targets to Makefile.in +- Update contrib/inflate86 [Anderson] +- Update contrib/testzlib, contrib/vstudio, contrib/minizip [Vollant] +- Add msdos and win32 directories with makefiles [Truta] +- More additions and improvements to the FAQ + +Changes in 1.2.0 (9 March 2003) +- New and improved inflate code + - About 20% faster + - Does not allocate 32K window unless and until needed + - Automatically detects and decompresses gzip streams + - Raw inflate no longer needs an extra dummy byte at end + - Added inflateBack functions using a callback interface--even faster + than inflate, useful for file utilities (gzip, zip) + - Added inflateCopy() function to record state for random access on + externally generated deflate streams (e.g. in gzip files) + - More readable code (I hope) +- New and improved crc32() + - About 50% faster, thanks to suggestions from Rodney Brown +- Add deflateBound() and compressBound() functions +- Fix memory leak in deflateInit2() +- Permit setting dictionary for raw deflate (for parallel deflate) +- Fix const declaration for gzwrite() +- Check for some malloc() failures in gzio.c +- Fix bug in gzopen() on single-byte file 0x1f +- Fix bug in gzread() on concatenated file with 0x1f at end of buffer + and next buffer doesn't start with 0x8b +- Fix uncompress() to return Z_DATA_ERROR on truncated input +- Free memory at end of example.c +- Remove MAX #define in trees.c (conflicted with some libraries) +- Fix static const's in deflate.c, gzio.c, and zutil.[ch] +- Declare malloc() and free() in gzio.c if STDC not defined +- Use malloc() instead of calloc() in zutil.c if int big enough +- Define STDC for AIX +- Add aix/ with approach for compiling shared library on AIX +- Add HP-UX support for shared libraries in configure +- Add OpenUNIX support for shared libraries in configure +- Use $cc instead of gcc to build shared library +- Make prefix directory if needed when installing +- Correct Macintosh avoidance of typedef Byte in zconf.h +- Correct Turbo C memory allocation when under Linux +- Use libz.a instead of -lz in Makefile (assure use of compiled library) +- Update configure to check for snprintf or vsnprintf functions and their + return value, warn during make if using an insecure function +- Fix configure problem with compile-time knowledge of HAVE_UNISTD_H that + is lost when library is used--resolution is to build new zconf.h +- Documentation improvements (in zlib.h): + - Document raw deflate and inflate + - Update RFCs URL + - Point out that zlib and gzip formats are different + - Note that Z_BUF_ERROR is not fatal + - Document string limit for gzprintf() and possible buffer overflow + - Note requirement on avail_out when flushing + - Note permitted values of flush parameter of inflate() +- Add some FAQs (and even answers) to the FAQ +- Add contrib/inflate86/ for x86 faster inflate +- Add contrib/blast/ for PKWare Data Compression Library decompression +- Add contrib/puff/ simple inflate for deflate format description + +Changes in 1.1.4 (11 March 2002) +- ZFREE was repeated on same allocation on some error conditions. + This creates a security problem described in + http://www.zlib.org/advisory-2002-03-11.txt +- Returned incorrect error (Z_MEM_ERROR) on some invalid data +- Avoid accesses before window for invalid distances with inflate window + less than 32K. +- force windowBits > 8 to avoid a bug in the encoder for a window size + of 256 bytes. (A complete fix will be available in 1.1.5). + +Changes in 1.1.3 (9 July 1998) +- fix "an inflate input buffer bug that shows up on rare but persistent + occasions" (Mark) +- fix gzread and gztell for concatenated .gz files (Didier Le Botlan) +- fix gzseek(..., SEEK_SET) in write mode +- fix crc check after a gzeek (Frank Faubert) +- fix miniunzip when the last entry in a zip file is itself a zip file + (J Lillge) +- add contrib/asm586 and contrib/asm686 (Brian Raiter) + See http://www.muppetlabs.com/~breadbox/software/assembly.html +- add support for Delphi 3 in contrib/delphi (Bob Dellaca) +- add support for C++Builder 3 and Delphi 3 in contrib/delphi2 (Davide Moretti) +- do not exit prematurely in untgz if 0 at start of block (Magnus Holmgren) +- use macro EXTERN instead of extern to support DLL for BeOS (Sander Stoks) +- added a FAQ file + +- Support gzdopen on Mac with Metrowerks (Jason Linhart) +- Do not redefine Byte on Mac (Brad Pettit & Jason Linhart) +- define SEEK_END too if SEEK_SET is not defined (Albert Chin-A-Young) +- avoid some warnings with Borland C (Tom Tanner) +- fix a problem in contrib/minizip/zip.c for 16-bit MSDOS (Gilles Vollant) +- emulate utime() for WIN32 in contrib/untgz (Gilles Vollant) +- allow several arguments to configure (Tim Mooney, Frodo Looijaard) +- use libdir and includedir in Makefile.in (Tim Mooney) +- support shared libraries on OSF1 V4 (Tim Mooney) +- remove so_locations in "make clean" (Tim Mooney) +- fix maketree.c compilation error (Glenn, Mark) +- Python interface to zlib now in Python 1.5 (Jeremy Hylton) +- new Makefile.riscos (Rich Walker) +- initialize static descriptors in trees.c for embedded targets (Nick Smith) +- use "foo-gz" in example.c for RISCOS and VMS (Nick Smith) +- add the OS/2 files in Makefile.in too (Andrew Zabolotny) +- fix fdopen and halloc macros for Microsoft C 6.0 (Tom Lane) +- fix maketree.c to allow clean compilation of inffixed.h (Mark) +- fix parameter check in deflateCopy (Gunther Nikl) +- cleanup trees.c, use compressed_len only in debug mode (Christian Spieler) +- Many portability patches by Christian Spieler: + . zutil.c, zutil.h: added "const" for zmem* + . Make_vms.com: fixed some typos + . Make_vms.com: msdos/Makefile.*: removed zutil.h from some dependency lists + . msdos/Makefile.msc: remove "default rtl link library" info from obj files + . msdos/Makefile.*: use model-dependent name for the built zlib library + . msdos/Makefile.emx, nt/Makefile.emx, nt/Makefile.gcc: + new makefiles, for emx (DOS/OS2), emx&rsxnt and mingw32 (Windows 9x / NT) +- use define instead of typedef for Bytef also for MSC small/medium (Tom Lane) +- replace __far with _far for better portability (Christian Spieler, Tom Lane) +- fix test for errno.h in configure (Tim Newsham) + +Changes in 1.1.2 (19 March 98) +- added contrib/minzip, mini zip and unzip based on zlib (Gilles Vollant) + See http://www.winimage.com/zLibDll/unzip.html +- preinitialize the inflate tables for fixed codes, to make the code + completely thread safe (Mark) +- some simplifications and slight speed-up to the inflate code (Mark) +- fix gzeof on non-compressed files (Allan Schrum) +- add -std1 option in configure for OSF1 to fix gzprintf (Martin Mokrejs) +- use default value of 4K for Z_BUFSIZE for 16-bit MSDOS (Tim Wegner + Glenn) +- added os2/Makefile.def and os2/zlib.def (Andrew Zabolotny) +- add shared lib support for UNIX_SV4.2MP (MATSUURA Takanori) +- do not wrap extern "C" around system includes (Tom Lane) +- mention zlib binding for TCL in README (Andreas Kupries) +- added amiga/Makefile.pup for Amiga powerUP SAS/C PPC (Andreas Kleinert) +- allow "make install prefix=..." even after configure (Glenn Randers-Pehrson) +- allow "configure --prefix $HOME" (Tim Mooney) +- remove warnings in example.c and gzio.c (Glenn Randers-Pehrson) +- move Makefile.sas to amiga/Makefile.sas + +Changes in 1.1.1 (27 Feb 98) +- fix macros _tr_tally_* in deflate.h for debug mode (Glenn Randers-Pehrson) +- remove block truncation heuristic which had very marginal effect for zlib + (smaller lit_bufsize than in gzip 1.2.4) and degraded a little the + compression ratio on some files. This also allows inlining _tr_tally for + matches in deflate_slow. +- added msdos/Makefile.w32 for WIN32 Microsoft Visual C++ (Bob Frazier) + +Changes in 1.1.0 (24 Feb 98) +- do not return STREAM_END prematurely in inflate (John Bowler) +- revert to the zlib 1.0.8 inflate to avoid the gcc 2.8.0 bug (Jeremy Buhler) +- compile with -DFASTEST to get compression code optimized for speed only +- in minigzip, try mmap'ing the input file first (Miguel Albrecht) +- increase size of I/O buffers in minigzip.c and gzio.c (not a big gain + on Sun but significant on HP) + +- add a pointer to experimental unzip library in README (Gilles Vollant) +- initialize variable gcc in configure (Chris Herborth) + +Changes in 1.0.9 (17 Feb 1998) +- added gzputs and gzgets functions +- do not clear eof flag in gzseek (Mark Diekhans) +- fix gzseek for files in transparent mode (Mark Diekhans) +- do not assume that vsprintf returns the number of bytes written (Jens Krinke) +- replace EXPORT with ZEXPORT to avoid conflict with other programs +- added compress2 in zconf.h, zlib.def, zlib.dnt +- new asm code from Gilles Vollant in contrib/asm386 +- simplify the inflate code (Mark): + . Replace ZALLOC's in huft_build() with single ZALLOC in inflate_blocks_new() + . ZALLOC the length list in inflate_trees_fixed() instead of using stack + . ZALLOC the value area for huft_build() instead of using stack + . Simplify Z_FINISH check in inflate() + +- Avoid gcc 2.8.0 comparison bug a little differently than zlib 1.0.8 +- in inftrees.c, avoid cc -O bug on HP (Farshid Elahi) +- in zconf.h move the ZLIB_DLL stuff earlier to avoid problems with + the declaration of FAR (Gilles VOllant) +- install libz.so* with mode 755 (executable) instead of 644 (Marc Lehmann) +- read_buf buf parameter of type Bytef* instead of charf* +- zmemcpy parameters are of type Bytef*, not charf* (Joseph Strout) +- do not redeclare unlink in minigzip.c for WIN32 (John Bowler) +- fix check for presence of directories in "make install" (Ian Willis) + +Changes in 1.0.8 (27 Jan 1998) +- fixed offsets in contrib/asm386/gvmat32.asm (Gilles Vollant) +- fix gzgetc and gzputc for big endian systems (Markus Oberhumer) +- added compress2() to allow setting the compression level +- include sys/types.h to get off_t on some systems (Marc Lehmann & QingLong) +- use constant arrays for the static trees in trees.c instead of computing + them at run time (thanks to Ken Raeburn for this suggestion). To create + trees.h, compile with GEN_TREES_H and run "make test". +- check return code of example in "make test" and display result +- pass minigzip command line options to file_compress +- simplifying code of inflateSync to avoid gcc 2.8 bug + +- support CC="gcc -Wall" in configure -s (QingLong) +- avoid a flush caused by ftell in gzopen for write mode (Ken Raeburn) +- fix test for shared library support to avoid compiler warnings +- zlib.lib -> zlib.dll in msdos/zlib.rc (Gilles Vollant) +- check for TARGET_OS_MAC in addition to MACOS (Brad Pettit) +- do not use fdopen for Metrowerks on Mac (Brad Pettit)) +- add checks for gzputc and gzputc in example.c +- avoid warnings in gzio.c and deflate.c (Andreas Kleinert) +- use const for the CRC table (Ken Raeburn) +- fixed "make uninstall" for shared libraries +- use Tracev instead of Trace in infblock.c +- in example.c use correct compressed length for test_sync +- suppress +vnocompatwarnings in configure for HPUX (not always supported) + +Changes in 1.0.7 (20 Jan 1998) +- fix gzseek which was broken in write mode +- return error for gzseek to negative absolute position +- fix configure for Linux (Chun-Chung Chen) +- increase stack space for MSC (Tim Wegner) +- get_crc_table and inflateSyncPoint are EXPORTed (Gilles Vollant) +- define EXPORTVA for gzprintf (Gilles Vollant) +- added man page zlib.3 (Rick Rodgers) +- for contrib/untgz, fix makedir() and improve Makefile + +- check gzseek in write mode in example.c +- allocate extra buffer for seeks only if gzseek is actually called +- avoid signed/unsigned comparisons (Tim Wegner, Gilles Vollant) +- add inflateSyncPoint in zconf.h +- fix list of exported functions in nt/zlib.dnt and mdsos/zlib.def + +Changes in 1.0.6 (19 Jan 1998) +- add functions gzprintf, gzputc, gzgetc, gztell, gzeof, gzseek, gzrewind and + gzsetparams (thanks to Roland Giersig and Kevin Ruland for some of this code) +- Fix a deflate bug occurring only with compression level 0 (thanks to + Andy Buckler for finding this one). +- In minigzip, pass transparently also the first byte for .Z files. +- return Z_BUF_ERROR instead of Z_OK if output buffer full in uncompress() +- check Z_FINISH in inflate (thanks to Marc Schluper) +- Implement deflateCopy (thanks to Adam Costello) +- make static libraries by default in configure, add --shared option. +- move MSDOS or Windows specific files to directory msdos +- suppress the notion of partial flush to simplify the interface + (but the symbol Z_PARTIAL_FLUSH is kept for compatibility with 1.0.4) +- suppress history buffer provided by application to simplify the interface + (this feature was not implemented anyway in 1.0.4) +- next_in and avail_in must be initialized before calling inflateInit or + inflateInit2 +- add EXPORT in all exported functions (for Windows DLL) +- added Makefile.nt (thanks to Stephen Williams) +- added the unsupported "contrib" directory: + contrib/asm386/ by Gilles Vollant + 386 asm code replacing longest_match(). + contrib/iostream/ by Kevin Ruland + A C++ I/O streams interface to the zlib gz* functions + contrib/iostream2/ by Tyge Løvset + Another C++ I/O streams interface + contrib/untgz/ by "Pedro A. Aranda Guti\irrez" + A very simple tar.gz file extractor using zlib + contrib/visual-basic.txt by Carlos Rios + How to use compress(), uncompress() and the gz* functions from VB. +- pass params -f (filtered data), -h (huffman only), -1 to -9 (compression + level) in minigzip (thanks to Tom Lane) + +- use const for rommable constants in deflate +- added test for gzseek and gztell in example.c +- add undocumented function inflateSyncPoint() (hack for Paul Mackerras) +- add undocumented function zError to convert error code to string + (for Tim Smithers) +- Allow compilation of gzio with -DNO_DEFLATE to avoid the compression code. +- Use default memcpy for Symantec MSDOS compiler. +- Add EXPORT keyword for check_func (needed for Windows DLL) +- add current directory to LD_LIBRARY_PATH for "make test" +- create also a link for libz.so.1 +- added support for FUJITSU UXP/DS (thanks to Toshiaki Nomura) +- use $(SHAREDLIB) instead of libz.so in Makefile.in (for HPUX) +- added -soname for Linux in configure (Chun-Chung Chen, +- assign numbers to the exported functions in zlib.def (for Windows DLL) +- add advice in zlib.h for best usage of deflateSetDictionary +- work around compiler bug on Atari (cast Z_NULL in call of s->checkfn) +- allow compilation with ANSI keywords only enabled for TurboC in large model +- avoid "versionString"[0] (Borland bug) +- add NEED_DUMMY_RETURN for Borland +- use variable z_verbose for tracing in debug mode (L. Peter Deutsch). +- allow compilation with CC +- defined STDC for OS/2 (David Charlap) +- limit external names to 8 chars for MVS (Thomas Lund) +- in minigzip.c, use static buffers only for 16-bit systems +- fix suffix check for "minigzip -d foo.gz" +- do not return an error for the 2nd of two consecutive gzflush() (Felix Lee) +- use _fdopen instead of fdopen for MSC >= 6.0 (Thomas Fanslau) +- added makelcc.bat for lcc-win32 (Tom St Denis) +- in Makefile.dj2, use copy and del instead of install and rm (Frank Donahoe) +- Avoid expanded $Id$. Use "rcs -kb" or "cvs admin -kb" to avoid Id expansion. +- check for unistd.h in configure (for off_t) +- remove useless check parameter in inflate_blocks_free +- avoid useless assignment of s->check to itself in inflate_blocks_new +- do not flush twice in gzclose (thanks to Ken Raeburn) +- rename FOPEN as F_OPEN to avoid clash with /usr/include/sys/file.h +- use NO_ERRNO_H instead of enumeration of operating systems with errno.h +- work around buggy fclose on pipes for HP/UX +- support zlib DLL with BORLAND C++ 5.0 (thanks to Glenn Randers-Pehrson) +- fix configure if CC is already equal to gcc + +Changes in 1.0.5 (3 Jan 98) +- Fix inflate to terminate gracefully when fed corrupted or invalid data +- Use const for rommable constants in inflate +- Eliminate memory leaks on error conditions in inflate +- Removed some vestigial code in inflate +- Update web address in README + +Changes in 1.0.4 (24 Jul 96) +- In very rare conditions, deflate(s, Z_FINISH) could fail to produce an EOF + bit, so the decompressor could decompress all the correct data but went + on to attempt decompressing extra garbage data. This affected minigzip too. +- zlibVersion and gzerror return const char* (needed for DLL) +- port to RISCOS (no fdopen, no multiple dots, no unlink, no fileno) +- use z_error only for DEBUG (avoid problem with DLLs) + +Changes in 1.0.3 (2 Jul 96) +- use z_streamp instead of z_stream *, which is now a far pointer in MSDOS + small and medium models; this makes the library incompatible with previous + versions for these models. (No effect in large model or on other systems.) +- return OK instead of BUF_ERROR if previous deflate call returned with + avail_out as zero but there is nothing to do +- added memcmp for non STDC compilers +- define NO_DUMMY_DECL for more Mac compilers (.h files merged incorrectly) +- define __32BIT__ if __386__ or i386 is defined (pb. with Watcom and SCO) +- better check for 16-bit mode MSC (avoids problem with Symantec) + +Changes in 1.0.2 (23 May 96) +- added Windows DLL support +- added a function zlibVersion (for the DLL support) +- fixed declarations using Bytef in infutil.c (pb with MSDOS medium model) +- Bytef is define's instead of typedef'd only for Borland C +- avoid reading uninitialized memory in example.c +- mention in README that the zlib format is now RFC1950 +- updated Makefile.dj2 +- added algorithm.doc + +Changes in 1.0.1 (20 May 96) [1.0 skipped to avoid confusion] +- fix array overlay in deflate.c which sometimes caused bad compressed data +- fix inflate bug with empty stored block +- fix MSDOS medium model which was broken in 0.99 +- fix deflateParams() which could generated bad compressed data. +- Bytef is define'd instead of typedef'ed (work around Borland bug) +- added an INDEX file +- new makefiles for DJGPP (Makefile.dj2), 32-bit Borland (Makefile.b32), + Watcom (Makefile.wat), Amiga SAS/C (Makefile.sas) +- speed up adler32 for modern machines without auto-increment +- added -ansi for IRIX in configure +- static_init_done in trees.c is an int +- define unlink as delete for VMS +- fix configure for QNX +- add configure branch for SCO and HPUX +- avoid many warnings (unused variables, dead assignments, etc...) +- no fdopen for BeOS +- fix the Watcom fix for 32 bit mode (define FAR as empty) +- removed redefinition of Byte for MKWERKS +- work around an MWKERKS bug (incorrect merge of all .h files) + +Changes in 0.99 (27 Jan 96) +- allow preset dictionary shared between compressor and decompressor +- allow compression level 0 (no compression) +- add deflateParams in zlib.h: allow dynamic change of compression level + and compression strategy. +- test large buffers and deflateParams in example.c +- add optional "configure" to build zlib as a shared library +- suppress Makefile.qnx, use configure instead +- fixed deflate for 64-bit systems (detected on Cray) +- fixed inflate_blocks for 64-bit systems (detected on Alpha) +- declare Z_DEFLATED in zlib.h (possible parameter for deflateInit2) +- always return Z_BUF_ERROR when deflate() has nothing to do +- deflateInit and inflateInit are now macros to allow version checking +- prefix all global functions and types with z_ with -DZ_PREFIX +- make falloc completely reentrant (inftrees.c) +- fixed very unlikely race condition in ct_static_init +- free in reverse order of allocation to help memory manager +- use zlib-1.0/* instead of zlib/* inside the tar.gz +- make zlib warning-free with "gcc -O3 -Wall -Wwrite-strings -Wpointer-arith + -Wconversion -Wstrict-prototypes -Wmissing-prototypes" +- allow gzread on concatenated .gz files +- deflateEnd now returns Z_DATA_ERROR if it was premature +- deflate is finally (?) fully deterministic (no matches beyond end of input) +- Document Z_SYNC_FLUSH +- add uninstall in Makefile +- Check for __cpluplus in zlib.h +- Better test in ct_align for partial flush +- avoid harmless warnings for Borland C++ +- initialize hash_head in deflate.c +- avoid warning on fdopen (gzio.c) for HP cc -Aa +- include stdlib.h for STDC compilers +- include errno.h for Cray +- ignore error if ranlib doesn't exist +- call ranlib twice for NeXTSTEP +- use exec_prefix instead of prefix for libz.a +- renamed ct_* as _tr_* to avoid conflict with applications +- clear z->msg in inflateInit2 before any error return +- initialize opaque in example.c, gzio.c, deflate.c and inflate.c +- fixed typo in zconf.h (_GNUC__ => __GNUC__) +- check for WIN32 in zconf.h and zutil.c (avoid farmalloc in 32-bit mode) +- fix typo in Make_vms.com (f$trnlnm -> f$getsyi) +- in fcalloc, normalize pointer if size > 65520 bytes +- don't use special fcalloc for 32 bit Borland C++ +- use STDC instead of __GO32__ to avoid redeclaring exit, calloc, etc... +- use Z_BINARY instead of BINARY +- document that gzclose after gzdopen will close the file +- allow "a" as mode in gzopen. +- fix error checking in gzread +- allow skipping .gz extra-field on pipes +- added reference to Perl interface in README +- put the crc table in FAR data (I dislike more and more the medium model :) +- added get_crc_table +- added a dimension to all arrays (Borland C can't count). +- workaround Borland C bug in declaration of inflate_codes_new & inflate_fast +- guard against multiple inclusion of *.h (for precompiled header on Mac) +- Watcom C pretends to be Microsoft C small model even in 32 bit mode. +- don't use unsized arrays to avoid silly warnings by Visual C++: + warning C4746: 'inflate_mask' : unsized array treated as '__far' + (what's wrong with far data in far model?). +- define enum out of inflate_blocks_state to allow compilation with C++ + +Changes in 0.95 (16 Aug 95) +- fix MSDOS small and medium model (now easier to adapt to any compiler) +- inlined send_bits +- fix the final (:-) bug for deflate with flush (output was correct but + not completely flushed in rare occasions). +- default window size is same for compression and decompression + (it's now sufficient to set MAX_WBITS in zconf.h). +- voidp -> voidpf and voidnp -> voidp (for consistency with other + typedefs and because voidnp was not near in large model). + +Changes in 0.94 (13 Aug 95) +- support MSDOS medium model +- fix deflate with flush (could sometimes generate bad output) +- fix deflateReset (zlib header was incorrectly suppressed) +- added support for VMS +- allow a compression level in gzopen() +- gzflush now calls fflush +- For deflate with flush, flush even if no more input is provided. +- rename libgz.a as libz.a +- avoid complex expression in infcodes.c triggering Turbo C bug +- work around a problem with gcc on Alpha (in INSERT_STRING) +- don't use inline functions (problem with some gcc versions) +- allow renaming of Byte, uInt, etc... with #define. +- avoid warning about (unused) pointer before start of array in deflate.c +- avoid various warnings in gzio.c, example.c, infblock.c, adler32.c, zutil.c +- avoid reserved word 'new' in trees.c + +Changes in 0.93 (25 June 95) +- temporarily disable inline functions +- make deflate deterministic +- give enough lookahead for PARTIAL_FLUSH +- Set binary mode for stdin/stdout in minigzip.c for OS/2 +- don't even use signed char in inflate (not portable enough) +- fix inflate memory leak for segmented architectures + +Changes in 0.92 (3 May 95) +- don't assume that char is signed (problem on SGI) +- Clear bit buffer when starting a stored block +- no memcpy on Pyramid +- suppressed inftest.c +- optimized fill_window, put longest_match inline for gcc +- optimized inflate on stored blocks. +- untabify all sources to simplify patches + +Changes in 0.91 (2 May 95) +- Default MEM_LEVEL is 8 (not 9 for Unix) as documented in zlib.h +- Document the memory requirements in zconf.h +- added "make install" +- fix sync search logic in inflateSync +- deflate(Z_FULL_FLUSH) now works even if output buffer too short +- after inflateSync, don't scare people with just "lo world" +- added support for DJGPP + +Changes in 0.9 (1 May 95) +- don't assume that zalloc clears the allocated memory (the TurboC bug + was Mark's bug after all :) +- let again gzread copy uncompressed data unchanged (was working in 0.71) +- deflate(Z_FULL_FLUSH), inflateReset and inflateSync are now fully implemented +- added a test of inflateSync in example.c +- moved MAX_WBITS to zconf.h because users might want to change that. +- document explicitly that zalloc(64K) on MSDOS must return a normalized + pointer (zero offset) +- added Makefiles for Microsoft C, Turbo C, Borland C++ +- faster crc32() + +Changes in 0.8 (29 April 95) +- added fast inflate (inffast.c) +- deflate(Z_FINISH) now returns Z_STREAM_END when done. Warning: this + is incompatible with previous versions of zlib which returned Z_OK. +- work around a TurboC compiler bug (bad code for b << 0, see infutil.h) + (actually that was not a compiler bug, see 0.81 above) +- gzread no longer reads one extra byte in certain cases +- In gzio destroy(), don't reference a freed structure +- avoid many warnings for MSDOS +- avoid the ERROR symbol which is used by MS Windows + +Changes in 0.71 (14 April 95) +- Fixed more MSDOS compilation problems :( There is still a bug with + TurboC large model. + +Changes in 0.7 (14 April 95) +- Added full inflate support. +- Simplified the crc32() interface. The pre- and post-conditioning + (one's complement) is now done inside crc32(). WARNING: this is + incompatible with previous versions; see zlib.h for the new usage. + +Changes in 0.61 (12 April 95) +- workaround for a bug in TurboC. example and minigzip now work on MSDOS. + +Changes in 0.6 (11 April 95) +- added minigzip.c +- added gzdopen to reopen a file descriptor as gzFile +- added transparent reading of non-gziped files in gzread. +- fixed bug in gzread (don't read crc as data) +- fixed bug in destroy (gzio.c) (don't return Z_STREAM_END for gzclose). +- don't allocate big arrays in the stack (for MSDOS) +- fix some MSDOS compilation problems + +Changes in 0.5: +- do real compression in deflate.c. Z_PARTIAL_FLUSH is supported but + not yet Z_FULL_FLUSH. +- support decompression but only in a single step (forced Z_FINISH) +- added opaque object for zalloc and zfree. +- added deflateReset and inflateReset +- added a variable zlib_version for consistency checking. +- renamed the 'filter' parameter of deflateInit2 as 'strategy'. + Added Z_FILTERED and Z_HUFFMAN_ONLY constants. + +Changes in 0.4: +- avoid "zip" everywhere, use zlib instead of ziplib. +- suppress Z_BLOCK_FLUSH, interpret Z_PARTIAL_FLUSH as block flush + if compression method == 8. +- added adler32 and crc32 +- renamed deflateOptions as deflateInit2, call one or the other but not both +- added the method parameter for deflateInit2. +- added inflateInit2 +- simplied considerably deflateInit and inflateInit by not supporting + user-provided history buffer. This is supported only in deflateInit2 + and inflateInit2. + +Changes in 0.3: +- prefix all macro names with Z_ +- use Z_FINISH instead of deflateEnd to finish compression. +- added Z_HUFFMAN_ONLY +- added gzerror() diff --git a/zlib/FAQ b/zlib/FAQ new file mode 100644 index 0000000..1a22750 --- /dev/null +++ b/zlib/FAQ @@ -0,0 +1,366 @@ + + Frequently Asked Questions about zlib + + +If your question is not there, please check the zlib home page +http://zlib.net/ which may have more recent information. +The lastest zlib FAQ is at http://zlib.net/zlib_faq.html + + + 1. Is zlib Y2K-compliant? + + Yes. zlib doesn't handle dates. + + 2. Where can I get a Windows DLL version? + + The zlib sources can be compiled without change to produce a DLL. See the + file win32/DLL_FAQ.txt in the zlib distribution. Pointers to the + precompiled DLL are found in the zlib web site at http://zlib.net/ . + + 3. Where can I get a Visual Basic interface to zlib? + + See + * http://marknelson.us/1997/01/01/zlib-engine/ + * win32/DLL_FAQ.txt in the zlib distribution + + 4. compress() returns Z_BUF_ERROR. + + Make sure that before the call of compress(), the length of the compressed + buffer is equal to the available size of the compressed buffer and not + zero. For Visual Basic, check that this parameter is passed by reference + ("as any"), not by value ("as long"). + + 5. deflate() or inflate() returns Z_BUF_ERROR. + + Before making the call, make sure that avail_in and avail_out are not zero. + When setting the parameter flush equal to Z_FINISH, also make sure that + avail_out is big enough to allow processing all pending input. Note that a + Z_BUF_ERROR is not fatal--another call to deflate() or inflate() can be + made with more input or output space. A Z_BUF_ERROR may in fact be + unavoidable depending on how the functions are used, since it is not + possible to tell whether or not there is more output pending when + strm.avail_out returns with zero. See http://zlib.net/zlib_how.html for a + heavily annotated example. + + 6. Where's the zlib documentation (man pages, etc.)? + + It's in zlib.h . Examples of zlib usage are in the files example.c and + minigzip.c, with more in examples/ . + + 7. Why don't you use GNU autoconf or libtool or ...? + + Because we would like to keep zlib as a very small and simple package. + zlib is rather portable and doesn't need much configuration. + + 8. I found a bug in zlib. + + Most of the time, such problems are due to an incorrect usage of zlib. + Please try to reproduce the problem with a small program and send the + corresponding source to us at zlib@gzip.org . Do not send multi-megabyte + data files without prior agreement. + + 9. Why do I get "undefined reference to gzputc"? + + If "make test" produces something like + + example.o(.text+0x154): undefined reference to `gzputc' + + check that you don't have old files libz.* in /usr/lib, /usr/local/lib or + /usr/X11R6/lib. Remove any old versions, then do "make install". + +10. I need a Delphi interface to zlib. + + See the contrib/delphi directory in the zlib distribution. + +11. Can zlib handle .zip archives? + + Not by itself, no. See the directory contrib/minizip in the zlib + distribution. + +12. Can zlib handle .Z files? + + No, sorry. You have to spawn an uncompress or gunzip subprocess, or adapt + the code of uncompress on your own. + +13. How can I make a Unix shared library? + + make clean + ./configure -s + make + +14. How do I install a shared zlib library on Unix? + + After the above, then: + + make install + + However, many flavors of Unix come with a shared zlib already installed. + Before going to the trouble of compiling a shared version of zlib and + trying to install it, you may want to check if it's already there! If you + can #include , it's there. The -lz option will probably link to + it. You can check the version at the top of zlib.h or with the + ZLIB_VERSION symbol defined in zlib.h . + +15. I have a question about OttoPDF. + + We are not the authors of OttoPDF. The real author is on the OttoPDF web + site: Joel Hainley, jhainley@myndkryme.com. + +16. Can zlib decode Flate data in an Adobe PDF file? + + Yes. See http://www.pdflib.com/ . To modify PDF forms, see + http://sourceforge.net/projects/acroformtool/ . + +17. Why am I getting this "register_frame_info not found" error on Solaris? + + After installing zlib 1.1.4 on Solaris 2.6, running applications using zlib + generates an error such as: + + ld.so.1: rpm: fatal: relocation error: file /usr/local/lib/libz.so: + symbol __register_frame_info: referenced symbol not found + + The symbol __register_frame_info is not part of zlib, it is generated by + the C compiler (cc or gcc). You must recompile applications using zlib + which have this problem. This problem is specific to Solaris. See + http://www.sunfreeware.com for Solaris versions of zlib and applications + using zlib. + +18. Why does gzip give an error on a file I make with compress/deflate? + + The compress and deflate functions produce data in the zlib format, which + is different and incompatible with the gzip format. The gz* functions in + zlib on the other hand use the gzip format. Both the zlib and gzip formats + use the same compressed data format internally, but have different headers + and trailers around the compressed data. + +19. Ok, so why are there two different formats? + + The gzip format was designed to retain the directory information about a + single file, such as the name and last modification date. The zlib format + on the other hand was designed for in-memory and communication channel + applications, and has a much more compact header and trailer and uses a + faster integrity check than gzip. + +20. Well that's nice, but how do I make a gzip file in memory? + + You can request that deflate write the gzip format instead of the zlib + format using deflateInit2(). You can also request that inflate decode the + gzip format using inflateInit2(). Read zlib.h for more details. + +21. Is zlib thread-safe? + + Yes. However any library routines that zlib uses and any application- + provided memory allocation routines must also be thread-safe. zlib's gz* + functions use stdio library routines, and most of zlib's functions use the + library memory allocation routines by default. zlib's *Init* functions + allow for the application to provide custom memory allocation routines. + + Of course, you should only operate on any given zlib or gzip stream from a + single thread at a time. + +22. Can I use zlib in my commercial application? + + Yes. Please read the license in zlib.h. + +23. Is zlib under the GNU license? + + No. Please read the license in zlib.h. + +24. The license says that altered source versions must be "plainly marked". So + what exactly do I need to do to meet that requirement? + + You need to change the ZLIB_VERSION and ZLIB_VERNUM #defines in zlib.h. In + particular, the final version number needs to be changed to "f", and an + identification string should be appended to ZLIB_VERSION. Version numbers + x.x.x.f are reserved for modifications to zlib by others than the zlib + maintainers. For example, if the version of the base zlib you are altering + is "1.2.3.4", then in zlib.h you should change ZLIB_VERNUM to 0x123f, and + ZLIB_VERSION to something like "1.2.3.f-zachary-mods-v3". You can also + update the version strings in deflate.c and inftrees.c. + + For altered source distributions, you should also note the origin and + nature of the changes in zlib.h, as well as in ChangeLog and README, along + with the dates of the alterations. The origin should include at least your + name (or your company's name), and an email address to contact for help or + issues with the library. + + Note that distributing a compiled zlib library along with zlib.h and + zconf.h is also a source distribution, and so you should change + ZLIB_VERSION and ZLIB_VERNUM and note the origin and nature of the changes + in zlib.h as you would for a full source distribution. + +25. Will zlib work on a big-endian or little-endian architecture, and can I + exchange compressed data between them? + + Yes and yes. + +26. Will zlib work on a 64-bit machine? + + Yes. It has been tested on 64-bit machines, and has no dependence on any + data types being limited to 32-bits in length. If you have any + difficulties, please provide a complete problem report to zlib@gzip.org + +27. Will zlib decompress data from the PKWare Data Compression Library? + + No. The PKWare DCL uses a completely different compressed data format than + does PKZIP and zlib. However, you can look in zlib's contrib/blast + directory for a possible solution to your problem. + +28. Can I access data randomly in a compressed stream? + + No, not without some preparation. If when compressing you periodically use + Z_FULL_FLUSH, carefully write all the pending data at those points, and + keep an index of those locations, then you can start decompression at those + points. You have to be careful to not use Z_FULL_FLUSH too often, since it + can significantly degrade compression. Alternatively, you can scan a + deflate stream once to generate an index, and then use that index for + random access. See examples/zran.c . + +29. Does zlib work on MVS, OS/390, CICS, etc.? + + It has in the past, but we have not heard of any recent evidence. There + were working ports of zlib 1.1.4 to MVS, but those links no longer work. + If you know of recent, successful applications of zlib on these operating + systems, please let us know. Thanks. + +30. Is there some simpler, easier to read version of inflate I can look at to + understand the deflate format? + + First off, you should read RFC 1951. Second, yes. Look in zlib's + contrib/puff directory. + +31. Does zlib infringe on any patents? + + As far as we know, no. In fact, that was originally the whole point behind + zlib. Look here for some more information: + + http://www.gzip.org/#faq11 + +32. Can zlib work with greater than 4 GB of data? + + Yes. inflate() and deflate() will process any amount of data correctly. + Each call of inflate() or deflate() is limited to input and output chunks + of the maximum value that can be stored in the compiler's "unsigned int" + type, but there is no limit to the number of chunks. Note however that the + strm.total_in and strm_total_out counters may be limited to 4 GB. These + counters are provided as a convenience and are not used internally by + inflate() or deflate(). The application can easily set up its own counters + updated after each call of inflate() or deflate() to count beyond 4 GB. + compress() and uncompress() may be limited to 4 GB, since they operate in a + single call. gzseek() and gztell() may be limited to 4 GB depending on how + zlib is compiled. See the zlibCompileFlags() function in zlib.h. + + The word "may" appears several times above since there is a 4 GB limit only + if the compiler's "long" type is 32 bits. If the compiler's "long" type is + 64 bits, then the limit is 16 exabytes. + +33. Does zlib have any security vulnerabilities? + + The only one that we are aware of is potentially in gzprintf(). If zlib is + compiled to use sprintf() or vsprintf(), then there is no protection + against a buffer overflow of an 8K string space (or other value as set by + gzbuffer()), other than the caller of gzprintf() assuring that the output + will not exceed 8K. On the other hand, if zlib is compiled to use + snprintf() or vsnprintf(), which should normally be the case, then there is + no vulnerability. The ./configure script will display warnings if an + insecure variation of sprintf() will be used by gzprintf(). Also the + zlibCompileFlags() function will return information on what variant of + sprintf() is used by gzprintf(). + + If you don't have snprintf() or vsnprintf() and would like one, you can + find a portable implementation here: + + http://www.ijs.si/software/snprintf/ + + Note that you should be using the most recent version of zlib. Versions + 1.1.3 and before were subject to a double-free vulnerability, and versions + 1.2.1 and 1.2.2 were subject to an access exception when decompressing + invalid compressed data. + +34. Is there a Java version of zlib? + + Probably what you want is to use zlib in Java. zlib is already included + as part of the Java SDK in the java.util.zip package. If you really want + a version of zlib written in the Java language, look on the zlib home + page for links: http://zlib.net/ . + +35. I get this or that compiler or source-code scanner warning when I crank it + up to maximally-pedantic. Can't you guys write proper code? + + Many years ago, we gave up attempting to avoid warnings on every compiler + in the universe. It just got to be a waste of time, and some compilers + were downright silly as well as contradicted each other. So now, we simply + make sure that the code always works. + +36. Valgrind (or some similar memory access checker) says that deflate is + performing a conditional jump that depends on an uninitialized value. + Isn't that a bug? + + No. That is intentional for performance reasons, and the output of deflate + is not affected. This only started showing up recently since zlib 1.2.x + uses malloc() by default for allocations, whereas earlier versions used + calloc(), which zeros out the allocated memory. Even though the code was + correct, versions 1.2.4 and later was changed to not stimulate these + checkers. + +37. Will zlib read the (insert any ancient or arcane format here) compressed + data format? + + Probably not. Look in the comp.compression FAQ for pointers to various + formats and associated software. + +38. How can I encrypt/decrypt zip files with zlib? + + zlib doesn't support encryption. The original PKZIP encryption is very + weak and can be broken with freely available programs. To get strong + encryption, use GnuPG, http://www.gnupg.org/ , which already includes zlib + compression. For PKZIP compatible "encryption", look at + http://www.info-zip.org/ + +39. What's the difference between the "gzip" and "deflate" HTTP 1.1 encodings? + + "gzip" is the gzip format, and "deflate" is the zlib format. They should + probably have called the second one "zlib" instead to avoid confusion with + the raw deflate compressed data format. While the HTTP 1.1 RFC 2616 + correctly points to the zlib specification in RFC 1950 for the "deflate" + transfer encoding, there have been reports of servers and browsers that + incorrectly produce or expect raw deflate data per the deflate + specficiation in RFC 1951, most notably Microsoft. So even though the + "deflate" transfer encoding using the zlib format would be the more + efficient approach (and in fact exactly what the zlib format was designed + for), using the "gzip" transfer encoding is probably more reliable due to + an unfortunate choice of name on the part of the HTTP 1.1 authors. + + Bottom line: use the gzip format for HTTP 1.1 encoding. + +40. Does zlib support the new "Deflate64" format introduced by PKWare? + + No. PKWare has apparently decided to keep that format proprietary, since + they have not documented it as they have previous compression formats. In + any case, the compression improvements are so modest compared to other more + modern approaches, that it's not worth the effort to implement. + +41. I'm having a problem with the zip functions in zlib, can you help? + + There are no zip functions in zlib. You are probably using minizip by + Giles Vollant, which is found in the contrib directory of zlib. It is not + part of zlib. In fact none of the stuff in contrib is part of zlib. The + files in there are not supported by the zlib authors. You need to contact + the authors of the respective contribution for help. + +42. The match.asm code in contrib is under the GNU General Public License. + Since it's part of zlib, doesn't that mean that all of zlib falls under the + GNU GPL? + + No. The files in contrib are not part of zlib. They were contributed by + other authors and are provided as a convenience to the user within the zlib + distribution. Each item in contrib has its own license. + +43. Is zlib subject to export controls? What is its ECCN? + + zlib is not subject to export controls, and so is classified as EAR99. + +44. Can you please sign these lengthy legal documents and fax them back to us + so that we can use your software in our product? + + No. Go away. Shoo. diff --git a/zlib/INDEX b/zlib/INDEX new file mode 100644 index 0000000..f6c51ca --- /dev/null +++ b/zlib/INDEX @@ -0,0 +1,65 @@ +CMakeLists.txt cmake build file +ChangeLog history of changes +FAQ Frequently Asked Questions about zlib +INDEX this file +Makefile dummy Makefile that tells you to ./configure +Makefile.in template for Unix Makefile +README guess what +configure configure script for Unix +make_vms.com makefile for VMS +treebuild.xml XML description of source file dependencies +zconf.h.cmakein zconf.h template for cmake +zconf.h.in zconf.h template for configure +zlib.3 Man page for zlib +zlib.3.pdf Man page in PDF format +zlib.map Linux symbol information +zlib.pc.in Template for pkg-config descriptor +zlib2ansi perl script to convert source files for C++ compilation + +amiga/ makefiles for Amiga SAS C +doc/ documentation for formats and algorithms +msdos/ makefiles for MSDOS +nintendods/ makefile for Nintendo DS +old/ makefiles for various architectures and zlib documentation + files that have not yet been updated for zlib 1.2.x +qnx/ makefiles for QNX +watcom/ makefiles for OpenWatcom +win32/ makefiles for Windows + + zlib public header files (required for library use): +zconf.h +zlib.h + + private source files used to build the zlib library: +adler32.c +compress.c +crc32.c +crc32.h +deflate.c +deflate.h +gzclose.c +gzguts.h +gzlib.c +gzread.c +gzwrite.c +infback.c +inffast.c +inffast.h +inffixed.h +inflate.c +inflate.h +inftrees.c +inftrees.h +trees.c +trees.h +uncompr.c +zutil.c +zutil.h + + source files for sample programs: +example.c +minigzip.c +See examples/README.examples for more + + unsupported contribution by third parties +See contrib/README.contrib diff --git a/zlib/Jamfile b/zlib/Jamfile new file mode 100644 index 0000000..554cd24 --- /dev/null +++ b/zlib/Jamfile @@ -0,0 +1,30 @@ + +#PREF_CCFLAGS = $(CCOPTFLAG) ; # Turn optimisation on +PREF_CCFLAGS = $(CCDEBUGFLAG) ; # Debugging flags +PREF_LINKFLAGS = $(LINKDEBUGFLAG) ; + +Libraries = libz ; +Executables = ; +Headers = zlib.h ; + +# zlib library +LIBSRCS = + adler32.c + compress.c + crc32.c + deflate.c + gzclose.c + gzlib.c + gzread.c + gzwrite.c + infback.c + inffast.c + inflate.c + inftrees.c + trees.c + uncompr.c + zutil.c + ; + +Library libz : $(LIBSRCS) ; + diff --git a/zlib/Makefile b/zlib/Makefile new file mode 100644 index 0000000..6bba86c --- /dev/null +++ b/zlib/Makefile @@ -0,0 +1,5 @@ +all: + -@echo "Please use ./configure first. Thank you." + +distclean: + make -f Makefile.in distclean diff --git a/zlib/Makefile.in b/zlib/Makefile.in new file mode 100644 index 0000000..5b15bd0 --- /dev/null +++ b/zlib/Makefile.in @@ -0,0 +1,257 @@ +# Makefile for zlib +# Copyright (C) 1995-2010 Jean-loup Gailly. +# For conditions of distribution and use, see copyright notice in zlib.h + +# To compile and test, type: +# ./configure; make test +# Normally configure builds both a static and a shared library. +# If you want to build just a static library, use: ./configure --static + +# To use the asm code, type: +# cp contrib/asm?86/match.S ./match.S +# make LOC=-DASMV OBJA=match.o + +# To install /usr/local/lib/libz.* and /usr/local/include/zlib.h, type: +# make install +# To install in $HOME instead of /usr/local, use: +# make install prefix=$HOME + +CC=cc + +CFLAGS=-O +#CFLAGS=-O -DMAX_WBITS=14 -DMAX_MEM_LEVEL=7 +#CFLAGS=-g -DDEBUG +#CFLAGS=-O3 -Wall -Wwrite-strings -Wpointer-arith -Wconversion \ +# -Wstrict-prototypes -Wmissing-prototypes + +SFLAGS=-O +LDFLAGS= +TEST_LDFLAGS=-L. libz.a +LDSHARED=$(CC) +CPP=$(CC) -E + +STATICLIB=libz.a +SHAREDLIB=libz.so +SHAREDLIBV=libz.so.1.2.5 +SHAREDLIBM=libz.so.1 +LIBS=$(STATICLIB) $(SHAREDLIBV) + +AR=ar rc +RANLIB=ranlib +LDCONFIG=ldconfig +LDSHAREDLIBC=-lc +TAR=tar +SHELL=/bin/sh +EXE= + +prefix = /usr/local +exec_prefix = ${prefix} +libdir = ${exec_prefix}/lib +sharedlibdir = ${libdir} +includedir = ${prefix}/include +mandir = ${prefix}/share/man +man3dir = ${mandir}/man3 +pkgconfigdir = ${libdir}/pkgconfig + +OBJC = adler32.o compress.o crc32.o deflate.o gzclose.o gzlib.o gzread.o \ + gzwrite.o infback.o inffast.o inflate.o inftrees.o trees.o uncompr.o zutil.o + +PIC_OBJC = adler32.lo compress.lo crc32.lo deflate.lo gzclose.lo gzlib.lo gzread.lo \ + gzwrite.lo infback.lo inffast.lo inflate.lo inftrees.lo trees.lo uncompr.lo zutil.lo + +# to use the asm code: make OBJA=match.o, PIC_OBJA=match.lo +OBJA = +PIC_OBJA = + +OBJS = $(OBJC) $(OBJA) + +PIC_OBJS = $(PIC_OBJC) $(PIC_OBJA) + +all: static shared + +static: example$(EXE) minigzip$(EXE) + +shared: examplesh$(EXE) minigzipsh$(EXE) + +all64: example64$(EXE) minigzip64$(EXE) + +check: test + +test: all teststatic testshared + +teststatic: static + @if echo hello world | ./minigzip | ./minigzip -d && ./example; then \ + echo ' *** zlib test OK ***'; \ + else \ + echo ' *** zlib test FAILED ***'; false; \ + fi + -@rm -f foo.gz + +testshared: shared + @LD_LIBRARY_PATH=`pwd`:$(LD_LIBRARY_PATH) ; export LD_LIBRARY_PATH; \ + LD_LIBRARYN32_PATH=`pwd`:$(LD_LIBRARYN32_PATH) ; export LD_LIBRARYN32_PATH; \ + DYLD_LIBRARY_PATH=`pwd`:$(DYLD_LIBRARY_PATH) ; export DYLD_LIBRARY_PATH; \ + SHLIB_PATH=`pwd`:$(SHLIB_PATH) ; export SHLIB_PATH; \ + if echo hello world | ./minigzipsh | ./minigzipsh -d && ./examplesh; then \ + echo ' *** zlib shared test OK ***'; \ + else \ + echo ' *** zlib shared test FAILED ***'; false; \ + fi + -@rm -f foo.gz + +test64: all64 + @if echo hello world | ./minigzip64 | ./minigzip64 -d && ./example64; then \ + echo ' *** zlib 64-bit test OK ***'; \ + else \ + echo ' *** zlib 64-bit test FAILED ***'; false; \ + fi + -@rm -f foo.gz + +libz.a: $(OBJS) + $(AR) $@ $(OBJS) + -@ ($(RANLIB) $@ || true) >/dev/null 2>&1 + +match.o: match.S + $(CPP) match.S > _match.s + $(CC) -c _match.s + mv _match.o match.o + rm -f _match.s + +match.lo: match.S + $(CPP) match.S > _match.s + $(CC) -c -fPIC _match.s + mv _match.o match.lo + rm -f _match.s + +example64.o: example.c zlib.h zconf.h + $(CC) $(CFLAGS) -D_FILE_OFFSET_BITS=64 -c -o $@ example.c + +minigzip64.o: minigzip.c zlib.h zconf.h + $(CC) $(CFLAGS) -D_FILE_OFFSET_BITS=64 -c -o $@ minigzip.c + +.SUFFIXES: .lo + +.c.lo: + -@mkdir objs 2>/dev/null || test -d objs + $(CC) $(SFLAGS) -DPIC -c -o objs/$*.o $< + -@mv objs/$*.o $@ + +$(SHAREDLIBV): $(PIC_OBJS) + $(LDSHARED) $(SFLAGS) -o $@ $(PIC_OBJS) $(LDSHAREDLIBC) $(LDFLAGS) + rm -f $(SHAREDLIB) $(SHAREDLIBM) + ln -s $@ $(SHAREDLIB) + ln -s $@ $(SHAREDLIBM) + -@rmdir objs + +example$(EXE): example.o $(STATICLIB) + $(CC) $(CFLAGS) -o $@ example.o $(TEST_LDFLAGS) + +minigzip$(EXE): minigzip.o $(STATICLIB) + $(CC) $(CFLAGS) -o $@ minigzip.o $(TEST_LDFLAGS) + +examplesh$(EXE): example.o $(SHAREDLIBV) + $(CC) $(CFLAGS) -o $@ example.o -L. $(SHAREDLIBV) + +minigzipsh$(EXE): minigzip.o $(SHAREDLIBV) + $(CC) $(CFLAGS) -o $@ minigzip.o -L. $(SHAREDLIBV) + +example64$(EXE): example64.o $(STATICLIB) + $(CC) $(CFLAGS) -o $@ example64.o $(TEST_LDFLAGS) + +minigzip64$(EXE): minigzip64.o $(STATICLIB) + $(CC) $(CFLAGS) -o $@ minigzip64.o $(TEST_LDFLAGS) + +install-libs: $(LIBS) + -@if [ ! -d $(DESTDIR)$(exec_prefix) ]; then mkdir -p $(DESTDIR)$(exec_prefix); fi + -@if [ ! -d $(DESTDIR)$(libdir) ]; then mkdir -p $(DESTDIR)$(libdir); fi + -@if [ ! -d $(DESTDIR)$(sharedlibdir) ]; then mkdir -p $(DESTDIR)$(sharedlibdir); fi + -@if [ ! -d $(DESTDIR)$(man3dir) ]; then mkdir -p $(DESTDIR)$(man3dir); fi + -@if [ ! -d $(DESTDIR)$(pkgconfigdir) ]; then mkdir -p $(DESTDIR)$(pkgconfigdir); fi + cp $(STATICLIB) $(DESTDIR)$(libdir) + cp $(SHAREDLIBV) $(DESTDIR)$(sharedlibdir) + cd $(DESTDIR)$(libdir); chmod u=rw,go=r $(STATICLIB) + -@(cd $(DESTDIR)$(libdir); $(RANLIB) libz.a || true) >/dev/null 2>&1 + -@cd $(DESTDIR)$(sharedlibdir); if test "$(SHAREDLIBV)" -a -f $(SHAREDLIBV); then \ + chmod 755 $(SHAREDLIBV); \ + rm -f $(SHAREDLIB) $(SHAREDLIBM); \ + ln -s $(SHAREDLIBV) $(SHAREDLIB); \ + ln -s $(SHAREDLIBV) $(SHAREDLIBM); \ + ($(LDCONFIG) || true) >/dev/null 2>&1; \ + fi + cp zlib.3 $(DESTDIR)$(man3dir) + chmod 644 $(DESTDIR)$(man3dir)/zlib.3 + cp zlib.pc $(DESTDIR)$(pkgconfigdir) + chmod 644 $(DESTDIR)$(pkgconfigdir)/zlib.pc +# The ranlib in install is needed on NeXTSTEP which checks file times +# ldconfig is for Linux + +install: install-libs + -@if [ ! -d $(DESTDIR)$(includedir) ]; then mkdir -p $(DESTDIR)$(includedir); fi + cp zlib.h zconf.h $(DESTDIR)$(includedir) + chmod 644 $(DESTDIR)$(includedir)/zlib.h $(DESTDIR)$(includedir)/zconf.h + +uninstall: + cd $(DESTDIR)$(includedir); rm -f zlib.h zconf.h + cd $(DESTDIR)$(libdir); rm -f libz.a; \ + if test "$(SHAREDLIBV)" -a -f $(SHAREDLIBV); then \ + rm -f $(SHAREDLIBV) $(SHAREDLIB) $(SHAREDLIBM); \ + fi + cd $(DESTDIR)$(man3dir); rm -f zlib.3 + cd $(DESTDIR)$(pkgconfigdir); rm -f zlib.pc + +docs: zlib.3.pdf + +zlib.3.pdf: zlib.3 + groff -mandoc -f H -T ps zlib.3 | ps2pdf - zlib.3.pdf + +zconf.h.in: zconf.h.cmakein + sed "/^#cmakedefine/D" < zconf.h.cmakein > zconf.h.in + touch -r zconf.h.cmakein zconf.h.in + +zconf: zconf.h.in + cp -p zconf.h.in zconf.h + +mostlyclean: clean +clean: + rm -f *.o *.lo *~ \ + example$(EXE) minigzip$(EXE) examplesh$(EXE) minigzipsh$(EXE) \ + example64$(EXE) minigzip64$(EXE) \ + libz.* foo.gz so_locations \ + _match.s maketree contrib/infback9/*.o + rm -rf objs + +maintainer-clean: distclean +distclean: clean zconf docs + rm -f Makefile zlib.pc + -@rm -f .DS_Store + -@printf 'all:\n\t-@echo "Please use ./configure first. Thank you."\n' > Makefile + -@printf '\ndistclean:\n\tmake -f Makefile.in distclean\n' >> Makefile + -@touch -r Makefile.in Makefile + +tags: + etags *.[ch] + +depend: + makedepend -- $(CFLAGS) -- *.[ch] + +# DO NOT DELETE THIS LINE -- make depend depends on it. + +adler32.o zutil.o: zutil.h zlib.h zconf.h +gzclose.o gzlib.o gzread.o gzwrite.o: zlib.h zconf.h gzguts.h +compress.o example.o minigzip.o uncompr.o: zlib.h zconf.h +crc32.o: zutil.h zlib.h zconf.h crc32.h +deflate.o: deflate.h zutil.h zlib.h zconf.h +infback.o inflate.o: zutil.h zlib.h zconf.h inftrees.h inflate.h inffast.h inffixed.h +inffast.o: zutil.h zlib.h zconf.h inftrees.h inflate.h inffast.h +inftrees.o: zutil.h zlib.h zconf.h inftrees.h +trees.o: deflate.h zutil.h zlib.h zconf.h trees.h + +adler32.lo zutil.lo: zutil.h zlib.h zconf.h +gzclose.lo gzlib.lo gzread.lo gzwrite.lo: zlib.h zconf.h gzguts.h +compress.lo example.lo minigzip.lo uncompr.lo: zlib.h zconf.h +crc32.lo: zutil.h zlib.h zconf.h crc32.h +deflate.lo: deflate.h zutil.h zlib.h zconf.h +infback.lo inflate.lo: zutil.h zlib.h zconf.h inftrees.h inflate.h inffast.h inffixed.h +inffast.lo: zutil.h zlib.h zconf.h inftrees.h inflate.h inffast.h +inftrees.lo: zutil.h zlib.h zconf.h inftrees.h +trees.lo: deflate.h zutil.h zlib.h zconf.h trees.h diff --git a/zlib/README b/zlib/README new file mode 100644 index 0000000..d4219bf --- /dev/null +++ b/zlib/README @@ -0,0 +1,115 @@ +ZLIB DATA COMPRESSION LIBRARY + +zlib 1.2.5 is a general purpose data compression library. All the code is +thread safe. The data format used by the zlib library is described by RFCs +(Request for Comments) 1950 to 1952 in the files +http://www.ietf.org/rfc/rfc1950.txt (zlib format), rfc1951.txt (deflate format) +and rfc1952.txt (gzip format). + +All functions of the compression library are documented in the file zlib.h +(volunteer to write man pages welcome, contact zlib@gzip.org). A usage example +of the library is given in the file example.c which also tests that the library +is working correctly. Another example is given in the file minigzip.c. The +compression library itself is composed of all source files except example.c and +minigzip.c. + +To compile all files and run the test program, follow the instructions given at +the top of Makefile.in. In short "./configure; make test", and if that goes +well, "make install" should work for most flavors of Unix. For Windows, use one +of the special makefiles in win32/ or contrib/vstudio/ . For VMS, use +make_vms.com. + +Questions about zlib should be sent to , or to Gilles Vollant + for the Windows DLL version. The zlib home page is +http://zlib.net/ . Before reporting a problem, please check this site to +verify that you have the latest version of zlib; otherwise get the latest +version and check whether the problem still exists or not. + +PLEASE read the zlib FAQ http://zlib.net/zlib_faq.html before asking for help. + +Mark Nelson wrote an article about zlib for the Jan. 1997 +issue of Dr. Dobb's Journal; a copy of the article is available at +http://marknelson.us/1997/01/01/zlib-engine/ . + +The changes made in version 1.2.5 are documented in the file ChangeLog. + +Unsupported third party contributions are provided in directory contrib/ . + +zlib is available in Java using the java.util.zip package, documented at +http://java.sun.com/developer/technicalArticles/Programming/compression/ . + +A Perl interface to zlib written by Paul Marquess is available +at CPAN (Comprehensive Perl Archive Network) sites, including +http://search.cpan.org/~pmqs/IO-Compress-Zlib/ . + +A Python interface to zlib written by A.M. Kuchling is +available in Python 1.5 and later versions, see +http://www.python.org/doc/lib/module-zlib.html . + +zlib is built into tcl: http://wiki.tcl.tk/4610 . + +An experimental package to read and write files in .zip format, written on top +of zlib by Gilles Vollant , is available in the +contrib/minizip directory of zlib. + + +Notes for some targets: + +- For Windows DLL versions, please see win32/DLL_FAQ.txt + +- For 64-bit Irix, deflate.c must be compiled without any optimization. With + -O, one libpng test fails. The test works in 32 bit mode (with the -n32 + compiler flag). The compiler bug has been reported to SGI. + +- zlib doesn't work with gcc 2.6.3 on a DEC 3000/300LX under OSF/1 2.1 it works + when compiled with cc. + +- On Digital Unix 4.0D (formely OSF/1) on AlphaServer, the cc option -std1 is + necessary to get gzprintf working correctly. This is done by configure. + +- zlib doesn't work on HP-UX 9.05 with some versions of /bin/cc. It works with + other compilers. Use "make test" to check your compiler. + +- gzdopen is not supported on RISCOS or BEOS. + +- For PalmOs, see http://palmzlib.sourceforge.net/ + + +Acknowledgments: + + The deflate format used by zlib was defined by Phil Katz. The deflate and + zlib specifications were written by L. Peter Deutsch. Thanks to all the + people who reported problems and suggested various improvements in zlib; they + are too numerous to cite here. + +Copyright notice: + + (C) 1995-2010 Jean-loup Gailly and Mark Adler + + This software is provided 'as-is', without any express or implied + warranty. In no event will the authors be held liable for any damages + arising from the use of this software. + + Permission is granted to anyone to use this software for any purpose, + including commercial applications, and to alter it and redistribute it + freely, subject to the following restrictions: + + 1. The origin of this software must not be misrepresented; you must not + claim that you wrote the original software. If you use this software + in a product, an acknowledgment in the product documentation would be + appreciated but is not required. + 2. Altered source versions must be plainly marked as such, and must not be + misrepresented as being the original software. + 3. This notice may not be removed or altered from any source distribution. + + Jean-loup Gailly Mark Adler + jloup@gzip.org madler@alumni.caltech.edu + +If you use the zlib library in a product, we would appreciate *not* receiving +lengthy legal documents to sign. The sources are provided for free but without +warranty of any kind. The library has been entirely written by Jean-loup +Gailly and Mark Adler; it does not include third-party code. + +If you redistribute modified sources, we would appreciate that you include in +the file ChangeLog history information documenting your changes. Please read +the FAQ for more information on the distribution of modified source versions. diff --git a/zlib/adler32.c b/zlib/adler32.c new file mode 100644 index 0000000..65ad6a5 --- /dev/null +++ b/zlib/adler32.c @@ -0,0 +1,169 @@ +/* adler32.c -- compute the Adler-32 checksum of a data stream + * Copyright (C) 1995-2007 Mark Adler + * For conditions of distribution and use, see copyright notice in zlib.h + */ + +/* @(#) $Id$ */ + +#include "zutil.h" + +#define local static + +local uLong adler32_combine_(uLong adler1, uLong adler2, z_off64_t len2); + +#define BASE 65521UL /* largest prime smaller than 65536 */ +#define NMAX 5552 +/* NMAX is the largest n such that 255n(n+1)/2 + (n+1)(BASE-1) <= 2^32-1 */ + +#define DO1(buf,i) {adler += (buf)[i]; sum2 += adler;} +#define DO2(buf,i) DO1(buf,i); DO1(buf,i+1); +#define DO4(buf,i) DO2(buf,i); DO2(buf,i+2); +#define DO8(buf,i) DO4(buf,i); DO4(buf,i+4); +#define DO16(buf) DO8(buf,0); DO8(buf,8); + +/* use NO_DIVIDE if your processor does not do division in hardware */ +#ifdef NO_DIVIDE +# define MOD(a) \ + do { \ + if (a >= (BASE << 16)) a -= (BASE << 16); \ + if (a >= (BASE << 15)) a -= (BASE << 15); \ + if (a >= (BASE << 14)) a -= (BASE << 14); \ + if (a >= (BASE << 13)) a -= (BASE << 13); \ + if (a >= (BASE << 12)) a -= (BASE << 12); \ + if (a >= (BASE << 11)) a -= (BASE << 11); \ + if (a >= (BASE << 10)) a -= (BASE << 10); \ + if (a >= (BASE << 9)) a -= (BASE << 9); \ + if (a >= (BASE << 8)) a -= (BASE << 8); \ + if (a >= (BASE << 7)) a -= (BASE << 7); \ + if (a >= (BASE << 6)) a -= (BASE << 6); \ + if (a >= (BASE << 5)) a -= (BASE << 5); \ + if (a >= (BASE << 4)) a -= (BASE << 4); \ + if (a >= (BASE << 3)) a -= (BASE << 3); \ + if (a >= (BASE << 2)) a -= (BASE << 2); \ + if (a >= (BASE << 1)) a -= (BASE << 1); \ + if (a >= BASE) a -= BASE; \ + } while (0) +# define MOD4(a) \ + do { \ + if (a >= (BASE << 4)) a -= (BASE << 4); \ + if (a >= (BASE << 3)) a -= (BASE << 3); \ + if (a >= (BASE << 2)) a -= (BASE << 2); \ + if (a >= (BASE << 1)) a -= (BASE << 1); \ + if (a >= BASE) a -= BASE; \ + } while (0) +#else +# define MOD(a) a %= BASE +# define MOD4(a) a %= BASE +#endif + +/* ========================================================================= */ +uLong ZEXPORT adler32(adler, buf, len) + uLong adler; + const Bytef *buf; + uInt len; +{ + unsigned long sum2; + unsigned n; + + /* split Adler-32 into component sums */ + sum2 = (adler >> 16) & 0xffff; + adler &= 0xffff; + + /* in case user likes doing a byte at a time, keep it fast */ + if (len == 1) { + adler += buf[0]; + if (adler >= BASE) + adler -= BASE; + sum2 += adler; + if (sum2 >= BASE) + sum2 -= BASE; + return adler | (sum2 << 16); + } + + /* initial Adler-32 value (deferred check for len == 1 speed) */ + if (buf == Z_NULL) + return 1L; + + /* in case short lengths are provided, keep it somewhat fast */ + if (len < 16) { + while (len--) { + adler += *buf++; + sum2 += adler; + } + if (adler >= BASE) + adler -= BASE; + MOD4(sum2); /* only added so many BASE's */ + return adler | (sum2 << 16); + } + + /* do length NMAX blocks -- requires just one modulo operation */ + while (len >= NMAX) { + len -= NMAX; + n = NMAX / 16; /* NMAX is divisible by 16 */ + do { + DO16(buf); /* 16 sums unrolled */ + buf += 16; + } while (--n); + MOD(adler); + MOD(sum2); + } + + /* do remaining bytes (less than NMAX, still just one modulo) */ + if (len) { /* avoid modulos if none remaining */ + while (len >= 16) { + len -= 16; + DO16(buf); + buf += 16; + } + while (len--) { + adler += *buf++; + sum2 += adler; + } + MOD(adler); + MOD(sum2); + } + + /* return recombined sums */ + return adler | (sum2 << 16); +} + +/* ========================================================================= */ +local uLong adler32_combine_(adler1, adler2, len2) + uLong adler1; + uLong adler2; + z_off64_t len2; +{ + unsigned long sum1; + unsigned long sum2; + unsigned rem; + + /* the derivation of this formula is left as an exercise for the reader */ + rem = (unsigned)(len2 % BASE); + sum1 = adler1 & 0xffff; + sum2 = rem * sum1; + MOD(sum2); + sum1 += (adler2 & 0xffff) + BASE - 1; + sum2 += ((adler1 >> 16) & 0xffff) + ((adler2 >> 16) & 0xffff) + BASE - rem; + if (sum1 >= BASE) sum1 -= BASE; + if (sum1 >= BASE) sum1 -= BASE; + if (sum2 >= (BASE << 1)) sum2 -= (BASE << 1); + if (sum2 >= BASE) sum2 -= BASE; + return sum1 | (sum2 << 16); +} + +/* ========================================================================= */ +uLong ZEXPORT adler32_combine(adler1, adler2, len2) + uLong adler1; + uLong adler2; + z_off_t len2; +{ + return adler32_combine_(adler1, adler2, len2); +} + +uLong ZEXPORT adler32_combine64(adler1, adler2, len2) + uLong adler1; + uLong adler2; + z_off64_t len2; +{ + return adler32_combine_(adler1, adler2, len2); +} diff --git a/zlib/afiles b/zlib/afiles new file mode 100644 index 0000000..1b21cba --- /dev/null +++ b/zlib/afiles @@ -0,0 +1,49 @@ +Jamfile +afiles +CMakeLists.txt +ChangeLog +FAQ +INDEX +Makefile +Makefile.in +README +adler32.c +compress.c +configure +crc32.c +crc32.h +deflate.c +deflate.h +example.c +gzclose.c +gzguts.h +gzlib.c +gzread.c +gzwrite.c +infback.c +inffast.c +inffast.h +inffixed.h +inflate.c +inflate.h +inftrees.c +inftrees.h +libzlib.lib +make_vms.com +minigzip.c +treebuild.xml +trees.c +trees.h +uncompr.c +zconf.h +zconf.h.cmakein +zconf.h.in +zlib.3 +zlib.3.pdf +zlib.h +zlib.map +zlib.pc.in +zlib125.zip +zlib2ansi +zutil.c +zutil.h diff --git a/zlib/compress.c b/zlib/compress.c new file mode 100644 index 0000000..ea4dfbe --- /dev/null +++ b/zlib/compress.c @@ -0,0 +1,80 @@ +/* compress.c -- compress a memory buffer + * Copyright (C) 1995-2005 Jean-loup Gailly. + * For conditions of distribution and use, see copyright notice in zlib.h + */ + +/* @(#) $Id$ */ + +#define ZLIB_INTERNAL +#include "zlib.h" + +/* =========================================================================== + Compresses the source buffer into the destination buffer. The level + parameter has the same meaning as in deflateInit. sourceLen is the byte + length of the source buffer. Upon entry, destLen is the total size of the + destination buffer, which must be at least 0.1% larger than sourceLen plus + 12 bytes. Upon exit, destLen is the actual size of the compressed buffer. + + compress2 returns Z_OK if success, Z_MEM_ERROR if there was not enough + memory, Z_BUF_ERROR if there was not enough room in the output buffer, + Z_STREAM_ERROR if the level parameter is invalid. +*/ +int ZEXPORT compress2 (dest, destLen, source, sourceLen, level) + Bytef *dest; + uLongf *destLen; + const Bytef *source; + uLong sourceLen; + int level; +{ + z_stream stream; + int err; + + stream.next_in = (Bytef*)source; + stream.avail_in = (uInt)sourceLen; +#ifdef MAXSEG_64K + /* Check for source > 64K on 16-bit machine: */ + if ((uLong)stream.avail_in != sourceLen) return Z_BUF_ERROR; +#endif + stream.next_out = dest; + stream.avail_out = (uInt)*destLen; + if ((uLong)stream.avail_out != *destLen) return Z_BUF_ERROR; + + stream.zalloc = (alloc_func)0; + stream.zfree = (free_func)0; + stream.opaque = (voidpf)0; + + err = deflateInit(&stream, level); + if (err != Z_OK) return err; + + err = deflate(&stream, Z_FINISH); + if (err != Z_STREAM_END) { + deflateEnd(&stream); + return err == Z_OK ? Z_BUF_ERROR : err; + } + *destLen = stream.total_out; + + err = deflateEnd(&stream); + return err; +} + +/* =========================================================================== + */ +int ZEXPORT compress (dest, destLen, source, sourceLen) + Bytef *dest; + uLongf *destLen; + const Bytef *source; + uLong sourceLen; +{ + return compress2(dest, destLen, source, sourceLen, Z_DEFAULT_COMPRESSION); +} + +/* =========================================================================== + If the default memLevel or windowBits for deflateInit() is changed, then + this function needs to be updated. + */ +uLong ZEXPORT compressBound (sourceLen) + uLong sourceLen; +{ + return sourceLen + (sourceLen >> 12) + (sourceLen >> 14) + + (sourceLen >> 25) + 13; +} diff --git a/zlib/configure b/zlib/configure new file mode 100644 index 0000000..bd9edd2 --- /dev/null +++ b/zlib/configure @@ -0,0 +1,596 @@ +#!/bin/sh +# configure script for zlib. +# +# Normally configure builds both a static and a shared library. +# If you want to build just a static library, use: ./configure --static +# +# To impose specific compiler or flags or install directory, use for example: +# prefix=$HOME CC=cc CFLAGS="-O4" ./configure +# or for csh/tcsh users: +# (setenv prefix $HOME; setenv CC cc; setenv CFLAGS "-O4"; ./configure) + +# Incorrect settings of CC or CFLAGS may prevent creating a shared library. +# If you have problems, try without defining CC and CFLAGS before reporting +# an error. + +if [ -n "${CHOST}" ]; then + uname="$(echo "${CHOST}" | sed -e 's/^[^-]*-\([^-]*\)$/\1/' -e 's/^[^-]*-[^-]*-\([^-]*\)$/\1/' -e 's/^[^-]*-[^-]*-\([^-]*\)-.*$/\1/')" + CROSS_PREFIX="${CHOST}-" +fi + +STATICLIB=libz.a +LDFLAGS="${LDFLAGS} -L. ${STATICLIB}" +VER=`sed -n -e '/VERSION "/s/.*"\(.*\)".*/\1/p' < zlib.h` +VER3=`sed -n -e '/VERSION "/s/.*"\([0-9]*\\.[0-9]*\\.[0-9]*\).*/\1/p' < zlib.h` +VER2=`sed -n -e '/VERSION "/s/.*"\([0-9]*\\.[0-9]*\)\\..*/\1/p' < zlib.h` +VER1=`sed -n -e '/VERSION "/s/.*"\([0-9]*\)\\..*/\1/p' < zlib.h` +if "${CROSS_PREFIX}ar" --version >/dev/null 2>/dev/null || test $? -lt 126; then + AR=${AR-"${CROSS_PREFIX}ar"} + test -n "${CROSS_PREFIX}" && echo Using ${AR} +else + AR=${AR-"ar"} + test -n "${CROSS_PREFIX}" && echo Using ${AR} +fi +AR_RC="${AR} rc" +if "${CROSS_PREFIX}ranlib" --version >/dev/null 2>/dev/null || test $? -lt 126; then + RANLIB=${RANLIB-"${CROSS_PREFIX}ranlib"} + test -n "${CROSS_PREFIX}" && echo Using ${RANLIB} +else + RANLIB=${RANLIB-"ranlib"} +fi +if "${CROSS_PREFIX}nm" --version >/dev/null 2>/dev/null || test $? -lt 126; then + NM=${NM-"${CROSS_PREFIX}nm"} + test -n "${CROSS_PREFIX}" && echo Using ${NM} +else + NM=${NM-"nm"} +fi +LDCONFIG=${LDCONFIG-"ldconfig"} +LDSHAREDLIBC="${LDSHAREDLIBC--lc}" +prefix=${prefix-/usr/local} +exec_prefix=${exec_prefix-'${prefix}'} +libdir=${libdir-'${exec_prefix}/lib'} +sharedlibdir=${sharedlibdir-'${libdir}'} +includedir=${includedir-'${prefix}/include'} +mandir=${mandir-'${prefix}/share/man'} +shared_ext='.so' +shared=1 +zprefix=0 +build64=0 +gcc=0 +old_cc="$CC" +old_cflags="$CFLAGS" + +while test $# -ge 1 +do +case "$1" in + -h* | --help) + echo 'usage:' + echo ' configure [--zprefix] [--prefix=PREFIX] [--eprefix=EXPREFIX]' + echo ' [--static] [--64] [--libdir=LIBDIR] [--sharedlibdir=LIBDIR]' + echo ' [--includedir=INCLUDEDIR]' + exit 0 ;; + -p*=* | --prefix=*) prefix=`echo $1 | sed 's/.*=//'`; shift ;; + -e*=* | --eprefix=*) exec_prefix=`echo $1 | sed 's/.*=//'`; shift ;; + -l*=* | --libdir=*) libdir=`echo $1 | sed 's/.*=//'`; shift ;; + --sharedlibdir=*) sharedlibdir=`echo $1 | sed 's/.*=//'`; shift ;; + -i*=* | --includedir=*) includedir=`echo $1 | sed 's/.*=//'`;shift ;; + -u*=* | --uname=*) uname=`echo $1 | sed 's/.*=//'`;shift ;; + -p* | --prefix) prefix="$2"; shift; shift ;; + -e* | --eprefix) exec_prefix="$2"; shift; shift ;; + -l* | --libdir) libdir="$2"; shift; shift ;; + -i* | --includedir) includedir="$2"; shift; shift ;; + -s* | --shared | --enable-shared) shared=1; shift ;; + -t | --static) shared=0; shift ;; + -z* | --zprefix) zprefix=1; shift ;; + -6* | --64) build64=1; shift ;; + --sysconfdir=*) echo "ignored option: --sysconfdir"; shift ;; + --localstatedir=*) echo "ignored option: --localstatedir"; shift ;; + *) echo "unknown option: $1"; echo "$0 --help for help"; exit 1 ;; + esac +done + +test=ztest$$ +cat > $test.c </dev/null; then + CC="$cc" + SFLAGS="${CFLAGS--O3} -fPIC" + CFLAGS="${CFLAGS--O3}" + if test $build64 -eq 1; then + CFLAGS="${CFLAGS} -m64" + SFLAGS="${SFLAGS} -m64" + fi + if test "${ZLIBGCCWARN}" = "YES"; then + CFLAGS="${CFLAGS} -Wall -Wextra -pedantic" + fi + if test -z "$uname"; then + uname=`(uname -s || echo unknown) 2>/dev/null` + fi + case "$uname" in + Linux* | linux* | GNU | GNU/* | *BSD | DragonFly) LDSHARED=${LDSHARED-"$cc -shared -Wl,-soname,libz.so.1,--version-script,zlib.map"} ;; + CYGWIN* | Cygwin* | cygwin* | OS/2*) + EXE='.exe' ;; + MINGW*|mingw*) +# temporary bypass + rm -f $test.[co] $test $test$shared_ext + echo "Please use win32/Makefile.gcc instead." + exit 1 + LDSHARED=${LDSHARED-"$cc -shared"} + LDSHAREDLIBC="" + EXE='.exe' ;; + QNX*) # This is for QNX6. I suppose that the QNX rule below is for QNX2,QNX4 + # (alain.bonnefoy@icbt.com) + LDSHARED=${LDSHARED-"$cc -shared -Wl,-hlibz.so.1"} ;; + HP-UX*) + LDSHARED=${LDSHARED-"$cc -shared $SFLAGS"} + case `(uname -m || echo unknown) 2>/dev/null` in + ia64) + shared_ext='.so' + SHAREDLIB='libz.so' ;; + *) + shared_ext='.sl' + SHAREDLIB='libz.sl' ;; + esac ;; + Darwin*) shared_ext='.dylib' + SHAREDLIB=libz$shared_ext + SHAREDLIBV=libz.$VER$shared_ext + SHAREDLIBM=libz.$VER1$shared_ext + LDSHARED=${LDSHARED-"$cc -dynamiclib -install_name $libdir/$SHAREDLIBM -compatibility_version $VER1 -current_version $VER3"} ;; + *) LDSHARED=${LDSHARED-"$cc -shared"} ;; + esac +else + # find system name and corresponding cc options + CC=${CC-cc} + gcc=0 + if test -z "$uname"; then + uname=`(uname -sr || echo unknown) 2>/dev/null` + fi + case "$uname" in + HP-UX*) SFLAGS=${CFLAGS-"-O +z"} + CFLAGS=${CFLAGS-"-O"} +# LDSHARED=${LDSHARED-"ld -b +vnocompatwarnings"} + LDSHARED=${LDSHARED-"ld -b"} + case `(uname -m || echo unknown) 2>/dev/null` in + ia64) + shared_ext='.so' + SHAREDLIB='libz.so' ;; + *) + shared_ext='.sl' + SHAREDLIB='libz.sl' ;; + esac ;; + IRIX*) SFLAGS=${CFLAGS-"-ansi -O2 -rpath ."} + CFLAGS=${CFLAGS-"-ansi -O2"} + LDSHARED=${LDSHARED-"cc -shared -Wl,-soname,libz.so.1"} ;; + OSF1\ V4*) SFLAGS=${CFLAGS-"-O -std1"} + CFLAGS=${CFLAGS-"-O -std1"} + LDFLAGS="${LDFLAGS} -Wl,-rpath,." + LDSHARED=${LDSHARED-"cc -shared -Wl,-soname,libz.so -Wl,-msym -Wl,-rpath,$(libdir) -Wl,-set_version,${VER}:1.0"} ;; + OSF1*) SFLAGS=${CFLAGS-"-O -std1"} + CFLAGS=${CFLAGS-"-O -std1"} + LDSHARED=${LDSHARED-"cc -shared -Wl,-soname,libz.so.1"} ;; + QNX*) SFLAGS=${CFLAGS-"-4 -O"} + CFLAGS=${CFLAGS-"-4 -O"} + LDSHARED=${LDSHARED-"cc"} + RANLIB=${RANLIB-"true"} + AR_RC="cc -A" ;; + SCO_SV\ 3.2*) SFLAGS=${CFLAGS-"-O3 -dy -KPIC "} + CFLAGS=${CFLAGS-"-O3"} + LDSHARED=${LDSHARED-"cc -dy -KPIC -G"} ;; + SunOS\ 5*) LDSHARED=${LDSHARED-"cc -G"} + case `(uname -m || echo unknown) 2>/dev/null` in + i86*) + SFLAGS=${CFLAGS-"-xpentium -fast -KPIC -R."} + CFLAGS=${CFLAGS-"-xpentium -fast"} ;; + *) + SFLAGS=${CFLAGS-"-fast -xcg92 -KPIC -R."} + CFLAGS=${CFLAGS-"-fast -xcg92"} ;; + esac ;; + SunOS\ 4*) SFLAGS=${CFLAGS-"-O2 -PIC"} + CFLAGS=${CFLAGS-"-O2"} + LDSHARED=${LDSHARED-"ld"} ;; + SunStudio\ 9*) SFLAGS=${CFLAGS-"-fast -xcode=pic32 -xtarget=ultra3 -xarch=v9b"} + CFLAGS=${CFLAGS-"-fast -xtarget=ultra3 -xarch=v9b"} + LDSHARED=${LDSHARED-"cc -xarch=v9b"} ;; + UNIX_System_V\ 4.2.0) + SFLAGS=${CFLAGS-"-KPIC -O"} + CFLAGS=${CFLAGS-"-O"} + LDSHARED=${LDSHARED-"cc -G"} ;; + UNIX_SV\ 4.2MP) + SFLAGS=${CFLAGS-"-Kconform_pic -O"} + CFLAGS=${CFLAGS-"-O"} + LDSHARED=${LDSHARED-"cc -G"} ;; + OpenUNIX\ 5) + SFLAGS=${CFLAGS-"-KPIC -O"} + CFLAGS=${CFLAGS-"-O"} + LDSHARED=${LDSHARED-"cc -G"} ;; + AIX*) # Courtesy of dbakker@arrayasolutions.com + SFLAGS=${CFLAGS-"-O -qmaxmem=8192"} + CFLAGS=${CFLAGS-"-O -qmaxmem=8192"} + LDSHARED=${LDSHARED-"xlc -G"} ;; + # send working options for other systems to zlib@gzip.org + *) SFLAGS=${CFLAGS-"-O"} + CFLAGS=${CFLAGS-"-O"} + LDSHARED=${LDSHARED-"cc -shared"} ;; + esac +fi + +SHAREDLIB=${SHAREDLIB-"libz$shared_ext"} +SHAREDLIBV=${SHAREDLIBV-"libz$shared_ext.$VER"} +SHAREDLIBM=${SHAREDLIBM-"libz$shared_ext.$VER1"} + +if test $shared -eq 1; then + echo Checking for shared library support... + # we must test in two steps (cc then ld), required at least on SunOS 4.x + if test "`($CC -w -c $SFLAGS $test.c) 2>&1`" = "" && + test "`($LDSHARED $SFLAGS -o $test$shared_ext $test.o) 2>&1`" = ""; then + echo Building shared library $SHAREDLIBV with $CC. + elif test -z "$old_cc" -a -z "$old_cflags"; then + echo No shared library support. + shared=0; + else + echo Tested $CC -w -c $SFLAGS $test.c + $CC -w -c $SFLAGS $test.c + echo Tested $LDSHARED $SFLAGS -o $test$shared_ext $test.o + $LDSHARED $SFLAGS -o $test$shared_ext $test.o + echo 'No shared library support; try without defining CC and CFLAGS' + shared=0; + fi +fi +if test $shared -eq 0; then + LDSHARED="$CC" + ALL="static" + TEST="all teststatic" + SHAREDLIB="" + SHAREDLIBV="" + SHAREDLIBM="" + echo Building static library $STATICLIB version $VER with $CC. +else + ALL="static shared" + TEST="all teststatic testshared" +fi + +cat > $test.c < +off64_t dummy = 0; +EOF +if test "`($CC -c $CFLAGS -D_LARGEFILE64_SOURCE=1 $test.c) 2>&1`" = ""; then + CFLAGS="${CFLAGS} -D_LARGEFILE64_SOURCE=1" + SFLAGS="${SFLAGS} -D_LARGEFILE64_SOURCE=1" + ALL="${ALL} all64" + TEST="${TEST} test64" + echo "Checking for off64_t... Yes." + echo "Checking for fseeko... Yes." +else + echo "Checking for off64_t... No." + cat > $test.c < +int main(void) { + fseeko(NULL, 0, 0); + return 0; +} +EOF + if test "`($CC $CFLAGS -o $test $test.c) 2>&1`" = ""; then + echo "Checking for fseeko... Yes." + else + CFLAGS="${CFLAGS} -DNO_FSEEKO" + SFLAGS="${SFLAGS} -DNO_FSEEKO" + echo "Checking for fseeko... No." + fi +fi + +cp -p zconf.h.in zconf.h + +cat > $test.c < +int main() { return 0; } +EOF +if test "`($CC -c $CFLAGS $test.c) 2>&1`" = ""; then + sed < zconf.h "/^#ifdef HAVE_UNISTD_H.* may be/s/def HAVE_UNISTD_H\(.*\) may be/ 1\1 was/" > zconf.temp.h + mv zconf.temp.h zconf.h + echo "Checking for unistd.h... Yes." +else + echo "Checking for unistd.h... No." +fi + +if test $zprefix -eq 1; then + sed < zconf.h "/#ifdef Z_PREFIX.* may be/s/def Z_PREFIX\(.*\) may be/ 1\1 was/" > zconf.temp.h + mv zconf.temp.h zconf.h + echo "Using z_ prefix on all symbols." +fi + +cat > $test.c < +#include +#include "zconf.h" + +int main() +{ +#ifndef STDC + choke me +#endif + + return 0; +} +EOF + +if test "`($CC -c $CFLAGS $test.c) 2>&1`" = ""; then + echo "Checking whether to use vs[n]printf() or s[n]printf()... using vs[n]printf()." + + cat > $test.c < +#include + +int mytest(const char *fmt, ...) +{ + char buf[20]; + va_list ap; + + va_start(ap, fmt); + vsnprintf(buf, sizeof(buf), fmt, ap); + va_end(ap); + return 0; +} + +int main() +{ + return (mytest("Hello%d\n", 1)); +} +EOF + + if test "`($CC $CFLAGS -o $test $test.c) 2>&1`" = ""; then + echo "Checking for vsnprintf() in stdio.h... Yes." + + cat >$test.c < +#include + +int mytest(const char *fmt, ...) +{ + int n; + char buf[20]; + va_list ap; + + va_start(ap, fmt); + n = vsnprintf(buf, sizeof(buf), fmt, ap); + va_end(ap); + return n; +} + +int main() +{ + return (mytest("Hello%d\n", 1)); +} +EOF + + if test "`($CC -c $CFLAGS $test.c) 2>&1`" = ""; then + echo "Checking for return value of vsnprintf()... Yes." + else + CFLAGS="$CFLAGS -DHAS_vsnprintf_void" + SFLAGS="$SFLAGS -DHAS_vsnprintf_void" + echo "Checking for return value of vsnprintf()... No." + echo " WARNING: apparently vsnprintf() does not return a value. zlib" + echo " can build but will be open to possible string-format security" + echo " vulnerabilities." + fi + else + CFLAGS="$CFLAGS -DNO_vsnprintf" + SFLAGS="$SFLAGS -DNO_vsnprintf" + echo "Checking for vsnprintf() in stdio.h... No." + echo " WARNING: vsnprintf() not found, falling back to vsprintf(). zlib" + echo " can build but will be open to possible buffer-overflow security" + echo " vulnerabilities." + + cat >$test.c < +#include + +int mytest(const char *fmt, ...) +{ + int n; + char buf[20]; + va_list ap; + + va_start(ap, fmt); + n = vsprintf(buf, fmt, ap); + va_end(ap); + return n; +} + +int main() +{ + return (mytest("Hello%d\n", 1)); +} +EOF + + if test "`($CC -c $CFLAGS $test.c) 2>&1`" = ""; then + echo "Checking for return value of vsprintf()... Yes." + else + CFLAGS="$CFLAGS -DHAS_vsprintf_void" + SFLAGS="$SFLAGS -DHAS_vsprintf_void" + echo "Checking for return value of vsprintf()... No." + echo " WARNING: apparently vsprintf() does not return a value. zlib" + echo " can build but will be open to possible string-format security" + echo " vulnerabilities." + fi + fi +else + echo "Checking whether to use vs[n]printf() or s[n]printf()... using s[n]printf()." + + cat >$test.c < + +int mytest() +{ + char buf[20]; + + snprintf(buf, sizeof(buf), "%s", "foo"); + return 0; +} + +int main() +{ + return (mytest()); +} +EOF + + if test "`($CC $CFLAGS -o $test $test.c) 2>&1`" = ""; then + echo "Checking for snprintf() in stdio.h... Yes." + + cat >$test.c < + +int mytest() +{ + char buf[20]; + + return snprintf(buf, sizeof(buf), "%s", "foo"); +} + +int main() +{ + return (mytest()); +} +EOF + + if test "`($CC -c $CFLAGS $test.c) 2>&1`" = ""; then + echo "Checking for return value of snprintf()... Yes." + else + CFLAGS="$CFLAGS -DHAS_snprintf_void" + SFLAGS="$SFLAGS -DHAS_snprintf_void" + echo "Checking for return value of snprintf()... No." + echo " WARNING: apparently snprintf() does not return a value. zlib" + echo " can build but will be open to possible string-format security" + echo " vulnerabilities." + fi + else + CFLAGS="$CFLAGS -DNO_snprintf" + SFLAGS="$SFLAGS -DNO_snprintf" + echo "Checking for snprintf() in stdio.h... No." + echo " WARNING: snprintf() not found, falling back to sprintf(). zlib" + echo " can build but will be open to possible buffer-overflow security" + echo " vulnerabilities." + + cat >$test.c < + +int mytest() +{ + char buf[20]; + + return sprintf(buf, "%s", "foo"); +} + +int main() +{ + return (mytest()); +} +EOF + + if test "`($CC -c $CFLAGS $test.c) 2>&1`" = ""; then + echo "Checking for return value of sprintf()... Yes." + else + CFLAGS="$CFLAGS -DHAS_sprintf_void" + SFLAGS="$SFLAGS -DHAS_sprintf_void" + echo "Checking for return value of sprintf()... No." + echo " WARNING: apparently sprintf() does not return a value. zlib" + echo " can build but will be open to possible string-format security" + echo " vulnerabilities." + fi + fi +fi + +if test "$gcc" -eq 1; then + cat > $test.c <= 33) +# define ZLIB_INTERNAL __attribute__((visibility ("hidden"))) +#else +# define ZLIB_INTERNAL +#endif +int ZLIB_INTERNAL foo; +int main() +{ + return 0; +} +EOF + if test "`($CC -c $CFLAGS $test.c) 2>&1`" = ""; then + echo "Checking for attribute(visibility) support... Yes." + else + CFLAGS="$CFLAGS -DNO_VIZ" + SFLAGS="$SFLAGS -DNO_VIZ" + echo "Checking for attribute(visibility) support... No." + fi +fi + +CPP=${CPP-"$CC -E"} +case $CFLAGS in + *ASMV*) + if test "`$NM $test.o | grep _hello`" = ""; then + CPP="$CPP -DNO_UNDERLINE" + echo Checking for underline in external names... No. + else + echo Checking for underline in external names... Yes. + fi ;; +esac + +rm -f $test.[co] $test $test$shared_ext + +# udpate Makefile +sed < Makefile.in " +/^CC *=/s#=.*#=$CC# +/^CFLAGS *=/s#=.*#=$CFLAGS# +/^SFLAGS *=/s#=.*#=$SFLAGS# +/^LDFLAGS *=/s#=.*#=$LDFLAGS# +/^LDSHARED *=/s#=.*#=$LDSHARED# +/^CPP *=/s#=.*#=$CPP# +/^STATICLIB *=/s#=.*#=$STATICLIB# +/^SHAREDLIB *=/s#=.*#=$SHAREDLIB# +/^SHAREDLIBV *=/s#=.*#=$SHAREDLIBV# +/^SHAREDLIBM *=/s#=.*#=$SHAREDLIBM# +/^AR *=/s#=.*#=$AR_RC# +/^RANLIB *=/s#=.*#=$RANLIB# +/^LDCONFIG *=/s#=.*#=$LDCONFIG# +/^LDSHAREDLIBC *=/s#=.*#=$LDSHAREDLIBC# +/^EXE *=/s#=.*#=$EXE# +/^prefix *=/s#=.*#=$prefix# +/^exec_prefix *=/s#=.*#=$exec_prefix# +/^libdir *=/s#=.*#=$libdir# +/^sharedlibdir *=/s#=.*#=$sharedlibdir# +/^includedir *=/s#=.*#=$includedir# +/^mandir *=/s#=.*#=$mandir# +/^all: */s#:.*#: $ALL# +/^test: */s#:.*#: $TEST# +" > Makefile + +sed < zlib.pc.in " +/^CC *=/s#=.*#=$CC# +/^CFLAGS *=/s#=.*#=$CFLAGS# +/^CPP *=/s#=.*#=$CPP# +/^LDSHARED *=/s#=.*#=$LDSHARED# +/^STATICLIB *=/s#=.*#=$STATICLIB# +/^SHAREDLIB *=/s#=.*#=$SHAREDLIB# +/^SHAREDLIBV *=/s#=.*#=$SHAREDLIBV# +/^SHAREDLIBM *=/s#=.*#=$SHAREDLIBM# +/^AR *=/s#=.*#=$AR_RC# +/^RANLIB *=/s#=.*#=$RANLIB# +/^EXE *=/s#=.*#=$EXE# +/^prefix *=/s#=.*#=$prefix# +/^exec_prefix *=/s#=.*#=$exec_prefix# +/^libdir *=/s#=.*#=$libdir# +/^sharedlibdir *=/s#=.*#=$sharedlibdir# +/^includedir *=/s#=.*#=$includedir# +/^mandir *=/s#=.*#=$mandir# +/^LDFLAGS *=/s#=.*#=$LDFLAGS# +" | sed -e " +s/\@VERSION\@/$VER/g; +" > zlib.pc diff --git a/zlib/crc32.c b/zlib/crc32.c new file mode 100644 index 0000000..91be372 --- /dev/null +++ b/zlib/crc32.c @@ -0,0 +1,442 @@ +/* crc32.c -- compute the CRC-32 of a data stream + * Copyright (C) 1995-2006, 2010 Mark Adler + * For conditions of distribution and use, see copyright notice in zlib.h + * + * Thanks to Rodney Brown for his contribution of faster + * CRC methods: exclusive-oring 32 bits of data at a time, and pre-computing + * tables for updating the shift register in one step with three exclusive-ors + * instead of four steps with four exclusive-ors. This results in about a + * factor of two increase in speed on a Power PC G4 (PPC7455) using gcc -O3. + */ + +/* @(#) $Id$ */ + +/* + Note on the use of DYNAMIC_CRC_TABLE: there is no mutex or semaphore + protection on the static variables used to control the first-use generation + of the crc tables. Therefore, if you #define DYNAMIC_CRC_TABLE, you should + first call get_crc_table() to initialize the tables before allowing more than + one thread to use crc32(). + */ + +#ifdef MAKECRCH +# include +# ifndef DYNAMIC_CRC_TABLE +# define DYNAMIC_CRC_TABLE +# endif /* !DYNAMIC_CRC_TABLE */ +#endif /* MAKECRCH */ + +#include "zutil.h" /* for STDC and FAR definitions */ + +#define local static + +/* Find a four-byte integer type for crc32_little() and crc32_big(). */ +#ifndef NOBYFOUR +# ifdef STDC /* need ANSI C limits.h to determine sizes */ +# include +# define BYFOUR +# if (UINT_MAX == 0xffffffffUL) + typedef unsigned int u4; +# else +# if (ULONG_MAX == 0xffffffffUL) + typedef unsigned long u4; +# else +# if (USHRT_MAX == 0xffffffffUL) + typedef unsigned short u4; +# else +# undef BYFOUR /* can't find a four-byte integer type! */ +# endif +# endif +# endif +# endif /* STDC */ +#endif /* !NOBYFOUR */ + +/* Definitions for doing the crc four data bytes at a time. */ +#ifdef BYFOUR +# define REV(w) ((((w)>>24)&0xff)+(((w)>>8)&0xff00)+ \ + (((w)&0xff00)<<8)+(((w)&0xff)<<24)) + local unsigned long crc32_little OF((unsigned long, + const unsigned char FAR *, unsigned)); + local unsigned long crc32_big OF((unsigned long, + const unsigned char FAR *, unsigned)); +# define TBLS 8 +#else +# define TBLS 1 +#endif /* BYFOUR */ + +/* Local functions for crc concatenation */ +local unsigned long gf2_matrix_times OF((unsigned long *mat, + unsigned long vec)); +local void gf2_matrix_square OF((unsigned long *square, unsigned long *mat)); +local uLong crc32_combine_(uLong crc1, uLong crc2, z_off64_t len2); + + +#ifdef DYNAMIC_CRC_TABLE + +local volatile int crc_table_empty = 1; +local unsigned long FAR crc_table[TBLS][256]; +local void make_crc_table OF((void)); +#ifdef MAKECRCH + local void write_table OF((FILE *, const unsigned long FAR *)); +#endif /* MAKECRCH */ +/* + Generate tables for a byte-wise 32-bit CRC calculation on the polynomial: + x^32+x^26+x^23+x^22+x^16+x^12+x^11+x^10+x^8+x^7+x^5+x^4+x^2+x+1. + + Polynomials over GF(2) are represented in binary, one bit per coefficient, + with the lowest powers in the most significant bit. Then adding polynomials + is just exclusive-or, and multiplying a polynomial by x is a right shift by + one. If we call the above polynomial p, and represent a byte as the + polynomial q, also with the lowest power in the most significant bit (so the + byte 0xb1 is the polynomial x^7+x^3+x+1), then the CRC is (q*x^32) mod p, + where a mod b means the remainder after dividing a by b. + + This calculation is done using the shift-register method of multiplying and + taking the remainder. The register is initialized to zero, and for each + incoming bit, x^32 is added mod p to the register if the bit is a one (where + x^32 mod p is p+x^32 = x^26+...+1), and the register is multiplied mod p by + x (which is shifting right by one and adding x^32 mod p if the bit shifted + out is a one). We start with the highest power (least significant bit) of + q and repeat for all eight bits of q. + + The first table is simply the CRC of all possible eight bit values. This is + all the information needed to generate CRCs on data a byte at a time for all + combinations of CRC register values and incoming bytes. The remaining tables + allow for word-at-a-time CRC calculation for both big-endian and little- + endian machines, where a word is four bytes. +*/ +local void make_crc_table() +{ + unsigned long c; + int n, k; + unsigned long poly; /* polynomial exclusive-or pattern */ + /* terms of polynomial defining this crc (except x^32): */ + static volatile int first = 1; /* flag to limit concurrent making */ + static const unsigned char p[] = {0,1,2,4,5,7,8,10,11,12,16,22,23,26}; + + /* See if another task is already doing this (not thread-safe, but better + than nothing -- significantly reduces duration of vulnerability in + case the advice about DYNAMIC_CRC_TABLE is ignored) */ + if (first) { + first = 0; + + /* make exclusive-or pattern from polynomial (0xedb88320UL) */ + poly = 0UL; + for (n = 0; n < sizeof(p)/sizeof(unsigned char); n++) + poly |= 1UL << (31 - p[n]); + + /* generate a crc for every 8-bit value */ + for (n = 0; n < 256; n++) { + c = (unsigned long)n; + for (k = 0; k < 8; k++) + c = c & 1 ? poly ^ (c >> 1) : c >> 1; + crc_table[0][n] = c; + } + +#ifdef BYFOUR + /* generate crc for each value followed by one, two, and three zeros, + and then the byte reversal of those as well as the first table */ + for (n = 0; n < 256; n++) { + c = crc_table[0][n]; + crc_table[4][n] = REV(c); + for (k = 1; k < 4; k++) { + c = crc_table[0][c & 0xff] ^ (c >> 8); + crc_table[k][n] = c; + crc_table[k + 4][n] = REV(c); + } + } +#endif /* BYFOUR */ + + crc_table_empty = 0; + } + else { /* not first */ + /* wait for the other guy to finish (not efficient, but rare) */ + while (crc_table_empty) + ; + } + +#ifdef MAKECRCH + /* write out CRC tables to crc32.h */ + { + FILE *out; + + out = fopen("crc32.h", "w"); + if (out == NULL) return; + fprintf(out, "/* crc32.h -- tables for rapid CRC calculation\n"); + fprintf(out, " * Generated automatically by crc32.c\n */\n\n"); + fprintf(out, "local const unsigned long FAR "); + fprintf(out, "crc_table[TBLS][256] =\n{\n {\n"); + write_table(out, crc_table[0]); +# ifdef BYFOUR + fprintf(out, "#ifdef BYFOUR\n"); + for (k = 1; k < 8; k++) { + fprintf(out, " },\n {\n"); + write_table(out, crc_table[k]); + } + fprintf(out, "#endif\n"); +# endif /* BYFOUR */ + fprintf(out, " }\n};\n"); + fclose(out); + } +#endif /* MAKECRCH */ +} + +#ifdef MAKECRCH +local void write_table(out, table) + FILE *out; + const unsigned long FAR *table; +{ + int n; + + for (n = 0; n < 256; n++) + fprintf(out, "%s0x%08lxUL%s", n % 5 ? "" : " ", table[n], + n == 255 ? "\n" : (n % 5 == 4 ? ",\n" : ", ")); +} +#endif /* MAKECRCH */ + +#else /* !DYNAMIC_CRC_TABLE */ +/* ======================================================================== + * Tables of CRC-32s of all single-byte values, made by make_crc_table(). + */ +#include "crc32.h" +#endif /* DYNAMIC_CRC_TABLE */ + +/* ========================================================================= + * This function can be used by asm versions of crc32() + */ +const unsigned long FAR * ZEXPORT get_crc_table() +{ +#ifdef DYNAMIC_CRC_TABLE + if (crc_table_empty) + make_crc_table(); +#endif /* DYNAMIC_CRC_TABLE */ + return (const unsigned long FAR *)crc_table; +} + +/* ========================================================================= */ +#define DO1 crc = crc_table[0][((int)crc ^ (*buf++)) & 0xff] ^ (crc >> 8) +#define DO8 DO1; DO1; DO1; DO1; DO1; DO1; DO1; DO1 + +/* ========================================================================= */ +unsigned long ZEXPORT crc32(crc, buf, len) + unsigned long crc; + const unsigned char FAR *buf; + uInt len; +{ + if (buf == Z_NULL) return 0UL; + +#ifdef DYNAMIC_CRC_TABLE + if (crc_table_empty) + make_crc_table(); +#endif /* DYNAMIC_CRC_TABLE */ + +#ifdef BYFOUR + if (sizeof(void *) == sizeof(ptrdiff_t)) { + u4 endian; + + endian = 1; + if (*((unsigned char *)(&endian))) + return crc32_little(crc, buf, len); + else + return crc32_big(crc, buf, len); + } +#endif /* BYFOUR */ + crc = crc ^ 0xffffffffUL; + while (len >= 8) { + DO8; + len -= 8; + } + if (len) do { + DO1; + } while (--len); + return crc ^ 0xffffffffUL; +} + +#ifdef BYFOUR + +/* ========================================================================= */ +#define DOLIT4 c ^= *buf4++; \ + c = crc_table[3][c & 0xff] ^ crc_table[2][(c >> 8) & 0xff] ^ \ + crc_table[1][(c >> 16) & 0xff] ^ crc_table[0][c >> 24] +#define DOLIT32 DOLIT4; DOLIT4; DOLIT4; DOLIT4; DOLIT4; DOLIT4; DOLIT4; DOLIT4 + +/* ========================================================================= */ +local unsigned long crc32_little(crc, buf, len) + unsigned long crc; + const unsigned char FAR *buf; + unsigned len; +{ + register u4 c; + register const u4 FAR *buf4; + + c = (u4)crc; + c = ~c; + while (len && ((ptrdiff_t)buf & 3)) { + c = crc_table[0][(c ^ *buf++) & 0xff] ^ (c >> 8); + len--; + } + + buf4 = (const u4 FAR *)(const void FAR *)buf; + while (len >= 32) { + DOLIT32; + len -= 32; + } + while (len >= 4) { + DOLIT4; + len -= 4; + } + buf = (const unsigned char FAR *)buf4; + + if (len) do { + c = crc_table[0][(c ^ *buf++) & 0xff] ^ (c >> 8); + } while (--len); + c = ~c; + return (unsigned long)c; +} + +/* ========================================================================= */ +#define DOBIG4 c ^= *++buf4; \ + c = crc_table[4][c & 0xff] ^ crc_table[5][(c >> 8) & 0xff] ^ \ + crc_table[6][(c >> 16) & 0xff] ^ crc_table[7][c >> 24] +#define DOBIG32 DOBIG4; DOBIG4; DOBIG4; DOBIG4; DOBIG4; DOBIG4; DOBIG4; DOBIG4 + +/* ========================================================================= */ +local unsigned long crc32_big(crc, buf, len) + unsigned long crc; + const unsigned char FAR *buf; + unsigned len; +{ + register u4 c; + register const u4 FAR *buf4; + + c = REV((u4)crc); + c = ~c; + while (len && ((ptrdiff_t)buf & 3)) { + c = crc_table[4][(c >> 24) ^ *buf++] ^ (c << 8); + len--; + } + + buf4 = (const u4 FAR *)(const void FAR *)buf; + buf4--; + while (len >= 32) { + DOBIG32; + len -= 32; + } + while (len >= 4) { + DOBIG4; + len -= 4; + } + buf4++; + buf = (const unsigned char FAR *)buf4; + + if (len) do { + c = crc_table[4][(c >> 24) ^ *buf++] ^ (c << 8); + } while (--len); + c = ~c; + return (unsigned long)(REV(c)); +} + +#endif /* BYFOUR */ + +#define GF2_DIM 32 /* dimension of GF(2) vectors (length of CRC) */ + +/* ========================================================================= */ +local unsigned long gf2_matrix_times(mat, vec) + unsigned long *mat; + unsigned long vec; +{ + unsigned long sum; + + sum = 0; + while (vec) { + if (vec & 1) + sum ^= *mat; + vec >>= 1; + mat++; + } + return sum; +} + +/* ========================================================================= */ +local void gf2_matrix_square(square, mat) + unsigned long *square; + unsigned long *mat; +{ + int n; + + for (n = 0; n < GF2_DIM; n++) + square[n] = gf2_matrix_times(mat, mat[n]); +} + +/* ========================================================================= */ +local uLong crc32_combine_(crc1, crc2, len2) + uLong crc1; + uLong crc2; + z_off64_t len2; +{ + int n; + unsigned long row; + unsigned long even[GF2_DIM]; /* even-power-of-two zeros operator */ + unsigned long odd[GF2_DIM]; /* odd-power-of-two zeros operator */ + + /* degenerate case (also disallow negative lengths) */ + if (len2 <= 0) + return crc1; + + /* put operator for one zero bit in odd */ + odd[0] = 0xedb88320UL; /* CRC-32 polynomial */ + row = 1; + for (n = 1; n < GF2_DIM; n++) { + odd[n] = row; + row <<= 1; + } + + /* put operator for two zero bits in even */ + gf2_matrix_square(even, odd); + + /* put operator for four zero bits in odd */ + gf2_matrix_square(odd, even); + + /* apply len2 zeros to crc1 (first square will put the operator for one + zero byte, eight zero bits, in even) */ + do { + /* apply zeros operator for this bit of len2 */ + gf2_matrix_square(even, odd); + if (len2 & 1) + crc1 = gf2_matrix_times(even, crc1); + len2 >>= 1; + + /* if no more bits set, then done */ + if (len2 == 0) + break; + + /* another iteration of the loop with odd and even swapped */ + gf2_matrix_square(odd, even); + if (len2 & 1) + crc1 = gf2_matrix_times(odd, crc1); + len2 >>= 1; + + /* if no more bits set, then done */ + } while (len2 != 0); + + /* return combined crc */ + crc1 ^= crc2; + return crc1; +} + +/* ========================================================================= */ +uLong ZEXPORT crc32_combine(crc1, crc2, len2) + uLong crc1; + uLong crc2; + z_off_t len2; +{ + return crc32_combine_(crc1, crc2, len2); +} + +uLong ZEXPORT crc32_combine64(crc1, crc2, len2) + uLong crc1; + uLong crc2; + z_off64_t len2; +{ + return crc32_combine_(crc1, crc2, len2); +} diff --git a/zlib/crc32.h b/zlib/crc32.h new file mode 100644 index 0000000..8053b61 --- /dev/null +++ b/zlib/crc32.h @@ -0,0 +1,441 @@ +/* crc32.h -- tables for rapid CRC calculation + * Generated automatically by crc32.c + */ + +local const unsigned long FAR crc_table[TBLS][256] = +{ + { + 0x00000000UL, 0x77073096UL, 0xee0e612cUL, 0x990951baUL, 0x076dc419UL, + 0x706af48fUL, 0xe963a535UL, 0x9e6495a3UL, 0x0edb8832UL, 0x79dcb8a4UL, + 0xe0d5e91eUL, 0x97d2d988UL, 0x09b64c2bUL, 0x7eb17cbdUL, 0xe7b82d07UL, + 0x90bf1d91UL, 0x1db71064UL, 0x6ab020f2UL, 0xf3b97148UL, 0x84be41deUL, + 0x1adad47dUL, 0x6ddde4ebUL, 0xf4d4b551UL, 0x83d385c7UL, 0x136c9856UL, + 0x646ba8c0UL, 0xfd62f97aUL, 0x8a65c9ecUL, 0x14015c4fUL, 0x63066cd9UL, + 0xfa0f3d63UL, 0x8d080df5UL, 0x3b6e20c8UL, 0x4c69105eUL, 0xd56041e4UL, + 0xa2677172UL, 0x3c03e4d1UL, 0x4b04d447UL, 0xd20d85fdUL, 0xa50ab56bUL, + 0x35b5a8faUL, 0x42b2986cUL, 0xdbbbc9d6UL, 0xacbcf940UL, 0x32d86ce3UL, + 0x45df5c75UL, 0xdcd60dcfUL, 0xabd13d59UL, 0x26d930acUL, 0x51de003aUL, + 0xc8d75180UL, 0xbfd06116UL, 0x21b4f4b5UL, 0x56b3c423UL, 0xcfba9599UL, + 0xb8bda50fUL, 0x2802b89eUL, 0x5f058808UL, 0xc60cd9b2UL, 0xb10be924UL, + 0x2f6f7c87UL, 0x58684c11UL, 0xc1611dabUL, 0xb6662d3dUL, 0x76dc4190UL, + 0x01db7106UL, 0x98d220bcUL, 0xefd5102aUL, 0x71b18589UL, 0x06b6b51fUL, + 0x9fbfe4a5UL, 0xe8b8d433UL, 0x7807c9a2UL, 0x0f00f934UL, 0x9609a88eUL, + 0xe10e9818UL, 0x7f6a0dbbUL, 0x086d3d2dUL, 0x91646c97UL, 0xe6635c01UL, + 0x6b6b51f4UL, 0x1c6c6162UL, 0x856530d8UL, 0xf262004eUL, 0x6c0695edUL, + 0x1b01a57bUL, 0x8208f4c1UL, 0xf50fc457UL, 0x65b0d9c6UL, 0x12b7e950UL, + 0x8bbeb8eaUL, 0xfcb9887cUL, 0x62dd1ddfUL, 0x15da2d49UL, 0x8cd37cf3UL, + 0xfbd44c65UL, 0x4db26158UL, 0x3ab551ceUL, 0xa3bc0074UL, 0xd4bb30e2UL, + 0x4adfa541UL, 0x3dd895d7UL, 0xa4d1c46dUL, 0xd3d6f4fbUL, 0x4369e96aUL, + 0x346ed9fcUL, 0xad678846UL, 0xda60b8d0UL, 0x44042d73UL, 0x33031de5UL, + 0xaa0a4c5fUL, 0xdd0d7cc9UL, 0x5005713cUL, 0x270241aaUL, 0xbe0b1010UL, + 0xc90c2086UL, 0x5768b525UL, 0x206f85b3UL, 0xb966d409UL, 0xce61e49fUL, + 0x5edef90eUL, 0x29d9c998UL, 0xb0d09822UL, 0xc7d7a8b4UL, 0x59b33d17UL, + 0x2eb40d81UL, 0xb7bd5c3bUL, 0xc0ba6cadUL, 0xedb88320UL, 0x9abfb3b6UL, + 0x03b6e20cUL, 0x74b1d29aUL, 0xead54739UL, 0x9dd277afUL, 0x04db2615UL, + 0x73dc1683UL, 0xe3630b12UL, 0x94643b84UL, 0x0d6d6a3eUL, 0x7a6a5aa8UL, + 0xe40ecf0bUL, 0x9309ff9dUL, 0x0a00ae27UL, 0x7d079eb1UL, 0xf00f9344UL, + 0x8708a3d2UL, 0x1e01f268UL, 0x6906c2feUL, 0xf762575dUL, 0x806567cbUL, + 0x196c3671UL, 0x6e6b06e7UL, 0xfed41b76UL, 0x89d32be0UL, 0x10da7a5aUL, + 0x67dd4accUL, 0xf9b9df6fUL, 0x8ebeeff9UL, 0x17b7be43UL, 0x60b08ed5UL, + 0xd6d6a3e8UL, 0xa1d1937eUL, 0x38d8c2c4UL, 0x4fdff252UL, 0xd1bb67f1UL, + 0xa6bc5767UL, 0x3fb506ddUL, 0x48b2364bUL, 0xd80d2bdaUL, 0xaf0a1b4cUL, + 0x36034af6UL, 0x41047a60UL, 0xdf60efc3UL, 0xa867df55UL, 0x316e8eefUL, + 0x4669be79UL, 0xcb61b38cUL, 0xbc66831aUL, 0x256fd2a0UL, 0x5268e236UL, + 0xcc0c7795UL, 0xbb0b4703UL, 0x220216b9UL, 0x5505262fUL, 0xc5ba3bbeUL, + 0xb2bd0b28UL, 0x2bb45a92UL, 0x5cb36a04UL, 0xc2d7ffa7UL, 0xb5d0cf31UL, + 0x2cd99e8bUL, 0x5bdeae1dUL, 0x9b64c2b0UL, 0xec63f226UL, 0x756aa39cUL, + 0x026d930aUL, 0x9c0906a9UL, 0xeb0e363fUL, 0x72076785UL, 0x05005713UL, + 0x95bf4a82UL, 0xe2b87a14UL, 0x7bb12baeUL, 0x0cb61b38UL, 0x92d28e9bUL, + 0xe5d5be0dUL, 0x7cdcefb7UL, 0x0bdbdf21UL, 0x86d3d2d4UL, 0xf1d4e242UL, + 0x68ddb3f8UL, 0x1fda836eUL, 0x81be16cdUL, 0xf6b9265bUL, 0x6fb077e1UL, + 0x18b74777UL, 0x88085ae6UL, 0xff0f6a70UL, 0x66063bcaUL, 0x11010b5cUL, + 0x8f659effUL, 0xf862ae69UL, 0x616bffd3UL, 0x166ccf45UL, 0xa00ae278UL, + 0xd70dd2eeUL, 0x4e048354UL, 0x3903b3c2UL, 0xa7672661UL, 0xd06016f7UL, + 0x4969474dUL, 0x3e6e77dbUL, 0xaed16a4aUL, 0xd9d65adcUL, 0x40df0b66UL, + 0x37d83bf0UL, 0xa9bcae53UL, 0xdebb9ec5UL, 0x47b2cf7fUL, 0x30b5ffe9UL, + 0xbdbdf21cUL, 0xcabac28aUL, 0x53b39330UL, 0x24b4a3a6UL, 0xbad03605UL, + 0xcdd70693UL, 0x54de5729UL, 0x23d967bfUL, 0xb3667a2eUL, 0xc4614ab8UL, + 0x5d681b02UL, 0x2a6f2b94UL, 0xb40bbe37UL, 0xc30c8ea1UL, 0x5a05df1bUL, + 0x2d02ef8dUL +#ifdef BYFOUR + }, + { + 0x00000000UL, 0x191b3141UL, 0x32366282UL, 0x2b2d53c3UL, 0x646cc504UL, + 0x7d77f445UL, 0x565aa786UL, 0x4f4196c7UL, 0xc8d98a08UL, 0xd1c2bb49UL, + 0xfaefe88aUL, 0xe3f4d9cbUL, 0xacb54f0cUL, 0xb5ae7e4dUL, 0x9e832d8eUL, + 0x87981ccfUL, 0x4ac21251UL, 0x53d92310UL, 0x78f470d3UL, 0x61ef4192UL, + 0x2eaed755UL, 0x37b5e614UL, 0x1c98b5d7UL, 0x05838496UL, 0x821b9859UL, + 0x9b00a918UL, 0xb02dfadbUL, 0xa936cb9aUL, 0xe6775d5dUL, 0xff6c6c1cUL, + 0xd4413fdfUL, 0xcd5a0e9eUL, 0x958424a2UL, 0x8c9f15e3UL, 0xa7b24620UL, + 0xbea97761UL, 0xf1e8e1a6UL, 0xe8f3d0e7UL, 0xc3de8324UL, 0xdac5b265UL, + 0x5d5daeaaUL, 0x44469febUL, 0x6f6bcc28UL, 0x7670fd69UL, 0x39316baeUL, + 0x202a5aefUL, 0x0b07092cUL, 0x121c386dUL, 0xdf4636f3UL, 0xc65d07b2UL, + 0xed705471UL, 0xf46b6530UL, 0xbb2af3f7UL, 0xa231c2b6UL, 0x891c9175UL, + 0x9007a034UL, 0x179fbcfbUL, 0x0e848dbaUL, 0x25a9de79UL, 0x3cb2ef38UL, + 0x73f379ffUL, 0x6ae848beUL, 0x41c51b7dUL, 0x58de2a3cUL, 0xf0794f05UL, + 0xe9627e44UL, 0xc24f2d87UL, 0xdb541cc6UL, 0x94158a01UL, 0x8d0ebb40UL, + 0xa623e883UL, 0xbf38d9c2UL, 0x38a0c50dUL, 0x21bbf44cUL, 0x0a96a78fUL, + 0x138d96ceUL, 0x5ccc0009UL, 0x45d73148UL, 0x6efa628bUL, 0x77e153caUL, + 0xbabb5d54UL, 0xa3a06c15UL, 0x888d3fd6UL, 0x91960e97UL, 0xded79850UL, + 0xc7cca911UL, 0xece1fad2UL, 0xf5facb93UL, 0x7262d75cUL, 0x6b79e61dUL, + 0x4054b5deUL, 0x594f849fUL, 0x160e1258UL, 0x0f152319UL, 0x243870daUL, + 0x3d23419bUL, 0x65fd6ba7UL, 0x7ce65ae6UL, 0x57cb0925UL, 0x4ed03864UL, + 0x0191aea3UL, 0x188a9fe2UL, 0x33a7cc21UL, 0x2abcfd60UL, 0xad24e1afUL, + 0xb43fd0eeUL, 0x9f12832dUL, 0x8609b26cUL, 0xc94824abUL, 0xd05315eaUL, + 0xfb7e4629UL, 0xe2657768UL, 0x2f3f79f6UL, 0x362448b7UL, 0x1d091b74UL, + 0x04122a35UL, 0x4b53bcf2UL, 0x52488db3UL, 0x7965de70UL, 0x607eef31UL, + 0xe7e6f3feUL, 0xfefdc2bfUL, 0xd5d0917cUL, 0xcccba03dUL, 0x838a36faUL, + 0x9a9107bbUL, 0xb1bc5478UL, 0xa8a76539UL, 0x3b83984bUL, 0x2298a90aUL, + 0x09b5fac9UL, 0x10aecb88UL, 0x5fef5d4fUL, 0x46f46c0eUL, 0x6dd93fcdUL, + 0x74c20e8cUL, 0xf35a1243UL, 0xea412302UL, 0xc16c70c1UL, 0xd8774180UL, + 0x9736d747UL, 0x8e2de606UL, 0xa500b5c5UL, 0xbc1b8484UL, 0x71418a1aUL, + 0x685abb5bUL, 0x4377e898UL, 0x5a6cd9d9UL, 0x152d4f1eUL, 0x0c367e5fUL, + 0x271b2d9cUL, 0x3e001cddUL, 0xb9980012UL, 0xa0833153UL, 0x8bae6290UL, + 0x92b553d1UL, 0xddf4c516UL, 0xc4eff457UL, 0xefc2a794UL, 0xf6d996d5UL, + 0xae07bce9UL, 0xb71c8da8UL, 0x9c31de6bUL, 0x852aef2aUL, 0xca6b79edUL, + 0xd37048acUL, 0xf85d1b6fUL, 0xe1462a2eUL, 0x66de36e1UL, 0x7fc507a0UL, + 0x54e85463UL, 0x4df36522UL, 0x02b2f3e5UL, 0x1ba9c2a4UL, 0x30849167UL, + 0x299fa026UL, 0xe4c5aeb8UL, 0xfdde9ff9UL, 0xd6f3cc3aUL, 0xcfe8fd7bUL, + 0x80a96bbcUL, 0x99b25afdUL, 0xb29f093eUL, 0xab84387fUL, 0x2c1c24b0UL, + 0x350715f1UL, 0x1e2a4632UL, 0x07317773UL, 0x4870e1b4UL, 0x516bd0f5UL, + 0x7a468336UL, 0x635db277UL, 0xcbfad74eUL, 0xd2e1e60fUL, 0xf9ccb5ccUL, + 0xe0d7848dUL, 0xaf96124aUL, 0xb68d230bUL, 0x9da070c8UL, 0x84bb4189UL, + 0x03235d46UL, 0x1a386c07UL, 0x31153fc4UL, 0x280e0e85UL, 0x674f9842UL, + 0x7e54a903UL, 0x5579fac0UL, 0x4c62cb81UL, 0x8138c51fUL, 0x9823f45eUL, + 0xb30ea79dUL, 0xaa1596dcUL, 0xe554001bUL, 0xfc4f315aUL, 0xd7626299UL, + 0xce7953d8UL, 0x49e14f17UL, 0x50fa7e56UL, 0x7bd72d95UL, 0x62cc1cd4UL, + 0x2d8d8a13UL, 0x3496bb52UL, 0x1fbbe891UL, 0x06a0d9d0UL, 0x5e7ef3ecUL, + 0x4765c2adUL, 0x6c48916eUL, 0x7553a02fUL, 0x3a1236e8UL, 0x230907a9UL, + 0x0824546aUL, 0x113f652bUL, 0x96a779e4UL, 0x8fbc48a5UL, 0xa4911b66UL, + 0xbd8a2a27UL, 0xf2cbbce0UL, 0xebd08da1UL, 0xc0fdde62UL, 0xd9e6ef23UL, + 0x14bce1bdUL, 0x0da7d0fcUL, 0x268a833fUL, 0x3f91b27eUL, 0x70d024b9UL, + 0x69cb15f8UL, 0x42e6463bUL, 0x5bfd777aUL, 0xdc656bb5UL, 0xc57e5af4UL, + 0xee530937UL, 0xf7483876UL, 0xb809aeb1UL, 0xa1129ff0UL, 0x8a3fcc33UL, + 0x9324fd72UL + }, + { + 0x00000000UL, 0x01c26a37UL, 0x0384d46eUL, 0x0246be59UL, 0x0709a8dcUL, + 0x06cbc2ebUL, 0x048d7cb2UL, 0x054f1685UL, 0x0e1351b8UL, 0x0fd13b8fUL, + 0x0d9785d6UL, 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0x95e6b8b1UL, 0x7b490da3UL, 0x1e2eb11bUL, 0x483ed243UL, 0x2d596efbUL, + 0xc3f6dbe9UL, 0xa6916751UL, 0x1fa9b0ccUL, 0x7ace0c74UL, 0x9461b966UL, + 0xf10605deUL +#endif + } +}; diff --git a/zlib/deflate.c b/zlib/deflate.c new file mode 100644 index 0000000..5c4022f --- /dev/null +++ b/zlib/deflate.c @@ -0,0 +1,1834 @@ +/* deflate.c -- compress data using the deflation algorithm + * Copyright (C) 1995-2010 Jean-loup Gailly and Mark Adler + * For conditions of distribution and use, see copyright notice in zlib.h + */ + +/* + * ALGORITHM + * + * The "deflation" process depends on being able to identify portions + * of the input text which are identical to earlier input (within a + * sliding window trailing behind the input currently being processed). + * + * The most straightforward technique turns out to be the fastest for + * most input files: try all possible matches and select the longest. + * The key feature of this algorithm is that insertions into the string + * dictionary are very simple and thus fast, and deletions are avoided + * completely. Insertions are performed at each input character, whereas + * string matches are performed only when the previous match ends. So it + * is preferable to spend more time in matches to allow very fast string + * insertions and avoid deletions. The matching algorithm for small + * strings is inspired from that of Rabin & Karp. A brute force approach + * is used to find longer strings when a small match has been found. + * A similar algorithm is used in comic (by Jan-Mark Wams) and freeze + * (by Leonid Broukhis). + * A previous version of this file used a more sophisticated algorithm + * (by Fiala and Greene) which is guaranteed to run in linear amortized + * time, but has a larger average cost, uses more memory and is patented. + * However the F&G algorithm may be faster for some highly redundant + * files if the parameter max_chain_length (described below) is too large. + * + * ACKNOWLEDGEMENTS + * + * The idea of lazy evaluation of matches is due to Jan-Mark Wams, and + * I found it in 'freeze' written by Leonid Broukhis. + * Thanks to many people for bug reports and testing. + * + * REFERENCES + * + * Deutsch, L.P.,"DEFLATE Compressed Data Format Specification". + * Available in http://www.ietf.org/rfc/rfc1951.txt + * + * A description of the Rabin and Karp algorithm is given in the book + * "Algorithms" by R. Sedgewick, Addison-Wesley, p252. + * + * Fiala,E.R., and Greene,D.H. + * Data Compression with Finite Windows, Comm.ACM, 32,4 (1989) 490-595 + * + */ + +/* @(#) $Id$ */ + +#include "deflate.h" + +const char deflate_copyright[] = + " deflate 1.2.5 Copyright 1995-2010 Jean-loup Gailly and Mark Adler "; +/* + If you use the zlib library in a product, an acknowledgment is welcome + in the documentation of your product. If for some reason you cannot + include such an acknowledgment, I would appreciate that you keep this + copyright string in the executable of your product. + */ + +/* =========================================================================== + * Function prototypes. + */ +typedef enum { + need_more, /* block not completed, need more input or more output */ + block_done, /* block flush performed */ + finish_started, /* finish started, need only more output at next deflate */ + finish_done /* finish done, accept no more input or output */ +} block_state; + +typedef block_state (*compress_func) OF((deflate_state *s, int flush)); +/* Compression function. Returns the block state after the call. */ + +local void fill_window OF((deflate_state *s)); +local block_state deflate_stored OF((deflate_state *s, int flush)); +local block_state deflate_fast OF((deflate_state *s, int flush)); +#ifndef FASTEST +local block_state deflate_slow OF((deflate_state *s, int flush)); +#endif +local block_state deflate_rle OF((deflate_state *s, int flush)); +local block_state deflate_huff OF((deflate_state *s, int flush)); +local void lm_init OF((deflate_state *s)); +local void putShortMSB OF((deflate_state *s, uInt b)); +local void flush_pending OF((z_streamp strm)); +local int read_buf OF((z_streamp strm, Bytef *buf, unsigned size)); +#ifdef ASMV + void match_init OF((void)); /* asm code initialization */ + uInt longest_match OF((deflate_state *s, IPos cur_match)); +#else +local uInt longest_match OF((deflate_state *s, IPos cur_match)); +#endif + +#ifdef DEBUG +local void check_match OF((deflate_state *s, IPos start, IPos match, + int length)); +#endif + +/* =========================================================================== + * Local data + */ + +#define NIL 0 +/* Tail of hash chains */ + +#ifndef TOO_FAR +# define TOO_FAR 4096 +#endif +/* Matches of length 3 are discarded if their distance exceeds TOO_FAR */ + +/* Values for max_lazy_match, good_match and max_chain_length, depending on + * the desired pack level (0..9). The values given below have been tuned to + * exclude worst case performance for pathological files. Better values may be + * found for specific files. + */ +typedef struct config_s { + ush good_length; /* reduce lazy search above this match length */ + ush max_lazy; /* do not perform lazy search above this match length */ + ush nice_length; /* quit search above this match length */ + ush max_chain; + compress_func func; +} config; + +#ifdef FASTEST +local const config configuration_table[2] = { +/* good lazy nice chain */ +/* 0 */ {0, 0, 0, 0, deflate_stored}, /* store only */ +/* 1 */ {4, 4, 8, 4, deflate_fast}}; /* max speed, no lazy matches */ +#else +local const config configuration_table[10] = { +/* good lazy nice chain */ +/* 0 */ {0, 0, 0, 0, deflate_stored}, /* store only */ +/* 1 */ {4, 4, 8, 4, deflate_fast}, /* max speed, no lazy matches */ +/* 2 */ {4, 5, 16, 8, deflate_fast}, +/* 3 */ {4, 6, 32, 32, deflate_fast}, + +/* 4 */ {4, 4, 16, 16, deflate_slow}, /* lazy matches */ +/* 5 */ {8, 16, 32, 32, deflate_slow}, +/* 6 */ {8, 16, 128, 128, deflate_slow}, +/* 7 */ {8, 32, 128, 256, deflate_slow}, +/* 8 */ {32, 128, 258, 1024, deflate_slow}, +/* 9 */ {32, 258, 258, 4096, deflate_slow}}; /* max compression */ +#endif + +/* Note: the deflate() code requires max_lazy >= MIN_MATCH and max_chain >= 4 + * For deflate_fast() (levels <= 3) good is ignored and lazy has a different + * meaning. + */ + +#define EQUAL 0 +/* result of memcmp for equal strings */ + +#ifndef NO_DUMMY_DECL +struct static_tree_desc_s {int dummy;}; /* for buggy compilers */ +#endif + +/* =========================================================================== + * Update a hash value with the given input byte + * IN assertion: all calls to to UPDATE_HASH are made with consecutive + * input characters, so that a running hash key can be computed from the + * previous key instead of complete recalculation each time. + */ +#define UPDATE_HASH(s,h,c) (h = (((h)<hash_shift) ^ (c)) & s->hash_mask) + + +/* =========================================================================== + * Insert string str in the dictionary and set match_head to the previous head + * of the hash chain (the most recent string with same hash key). Return + * the previous length of the hash chain. + * If this file is compiled with -DFASTEST, the compression level is forced + * to 1, and no hash chains are maintained. + * IN assertion: all calls to to INSERT_STRING are made with consecutive + * input characters and the first MIN_MATCH bytes of str are valid + * (except for the last MIN_MATCH-1 bytes of the input file). + */ +#ifdef FASTEST +#define INSERT_STRING(s, str, match_head) \ + (UPDATE_HASH(s, s->ins_h, s->window[(str) + (MIN_MATCH-1)]), \ + match_head = s->head[s->ins_h], \ + s->head[s->ins_h] = (Pos)(str)) +#else +#define INSERT_STRING(s, str, match_head) \ + (UPDATE_HASH(s, s->ins_h, s->window[(str) + (MIN_MATCH-1)]), \ + match_head = s->prev[(str) & s->w_mask] = s->head[s->ins_h], \ + s->head[s->ins_h] = (Pos)(str)) +#endif + +/* =========================================================================== + * Initialize the hash table (avoiding 64K overflow for 16 bit systems). + * prev[] will be initialized on the fly. + */ +#define CLEAR_HASH(s) \ + s->head[s->hash_size-1] = NIL; \ + zmemzero((Bytef *)s->head, (unsigned)(s->hash_size-1)*sizeof(*s->head)); + +/* ========================================================================= */ +int ZEXPORT deflateInit_(strm, level, version, stream_size) + z_streamp strm; + int level; + const char *version; + int stream_size; +{ + return deflateInit2_(strm, level, Z_DEFLATED, MAX_WBITS, DEF_MEM_LEVEL, + Z_DEFAULT_STRATEGY, version, stream_size); + /* To do: ignore strm->next_in if we use it as window */ +} + +/* ========================================================================= */ +int ZEXPORT deflateInit2_(strm, level, method, windowBits, memLevel, strategy, + version, stream_size) + z_streamp strm; + int level; + int method; + int windowBits; + int memLevel; + int strategy; + const char *version; + int stream_size; +{ + deflate_state *s; + int wrap = 1; + static const char my_version[] = ZLIB_VERSION; + + ushf *overlay; + /* We overlay pending_buf and d_buf+l_buf. This works since the average + * output size for (length,distance) codes is <= 24 bits. + */ + + if (version == Z_NULL || version[0] != my_version[0] || + stream_size != sizeof(z_stream)) { + return Z_VERSION_ERROR; + } + if (strm == Z_NULL) return Z_STREAM_ERROR; + + strm->msg = Z_NULL; + if (strm->zalloc == (alloc_func)0) { + strm->zalloc = zcalloc; + strm->opaque = (voidpf)0; + } + if (strm->zfree == (free_func)0) strm->zfree = zcfree; + +#ifdef FASTEST + if (level != 0) level = 1; +#else + if (level == Z_DEFAULT_COMPRESSION) level = 6; +#endif + + if (windowBits < 0) { /* suppress zlib wrapper */ + wrap = 0; + windowBits = -windowBits; + } +#ifdef GZIP + else if (windowBits > 15) { + wrap = 2; /* write gzip wrapper instead */ + windowBits -= 16; + } +#endif + if (memLevel < 1 || memLevel > MAX_MEM_LEVEL || method != Z_DEFLATED || + windowBits < 8 || windowBits > 15 || level < 0 || level > 9 || + strategy < 0 || strategy > Z_FIXED) { + return Z_STREAM_ERROR; + } + if (windowBits == 8) windowBits = 9; /* until 256-byte window bug fixed */ + s = (deflate_state *) ZALLOC(strm, 1, sizeof(deflate_state)); + if (s == Z_NULL) return Z_MEM_ERROR; + strm->state = (struct internal_state FAR *)s; + s->strm = strm; + + s->wrap = wrap; + s->gzhead = Z_NULL; + s->w_bits = windowBits; + s->w_size = 1 << s->w_bits; + s->w_mask = s->w_size - 1; + + s->hash_bits = memLevel + 7; + s->hash_size = 1 << s->hash_bits; + s->hash_mask = s->hash_size - 1; + s->hash_shift = ((s->hash_bits+MIN_MATCH-1)/MIN_MATCH); + + s->window = (Bytef *) ZALLOC(strm, s->w_size, 2*sizeof(Byte)); + s->prev = (Posf *) ZALLOC(strm, s->w_size, sizeof(Pos)); + s->head = (Posf *) ZALLOC(strm, s->hash_size, sizeof(Pos)); + + s->high_water = 0; /* nothing written to s->window yet */ + + s->lit_bufsize = 1 << (memLevel + 6); /* 16K elements by default */ + + overlay = (ushf *) ZALLOC(strm, s->lit_bufsize, sizeof(ush)+2); + s->pending_buf = (uchf *) overlay; + s->pending_buf_size = (ulg)s->lit_bufsize * (sizeof(ush)+2L); + + if (s->window == Z_NULL || s->prev == Z_NULL || s->head == Z_NULL || + s->pending_buf == Z_NULL) { + s->status = FINISH_STATE; + strm->msg = (char*)ERR_MSG(Z_MEM_ERROR); + deflateEnd (strm); + return Z_MEM_ERROR; + } + s->d_buf = overlay + s->lit_bufsize/sizeof(ush); + s->l_buf = s->pending_buf + (1+sizeof(ush))*s->lit_bufsize; + + s->level = level; + s->strategy = strategy; + s->method = (Byte)method; + + return deflateReset(strm); +} + +/* ========================================================================= */ +int ZEXPORT deflateSetDictionary (strm, dictionary, dictLength) + z_streamp strm; + const Bytef *dictionary; + uInt dictLength; +{ + deflate_state *s; + uInt length = dictLength; + uInt n; + IPos hash_head = 0; + + if (strm == Z_NULL || strm->state == Z_NULL || dictionary == Z_NULL || + strm->state->wrap == 2 || + (strm->state->wrap == 1 && strm->state->status != INIT_STATE)) + return Z_STREAM_ERROR; + + s = strm->state; + if (s->wrap) + strm->adler = adler32(strm->adler, dictionary, dictLength); + + if (length < MIN_MATCH) return Z_OK; + if (length > s->w_size) { + length = s->w_size; + dictionary += dictLength - length; /* use the tail of the dictionary */ + } + zmemcpy(s->window, dictionary, length); + s->strstart = length; + s->block_start = (long)length; + + /* Insert all strings in the hash table (except for the last two bytes). + * s->lookahead stays null, so s->ins_h will be recomputed at the next + * call of fill_window. + */ + s->ins_h = s->window[0]; + UPDATE_HASH(s, s->ins_h, s->window[1]); + for (n = 0; n <= length - MIN_MATCH; n++) { + INSERT_STRING(s, n, hash_head); + } + if (hash_head) hash_head = 0; /* to make compiler happy */ + return Z_OK; +} + +/* ========================================================================= */ +int ZEXPORT deflateReset (strm) + z_streamp strm; +{ + deflate_state *s; + + if (strm == Z_NULL || strm->state == Z_NULL || + strm->zalloc == (alloc_func)0 || strm->zfree == (free_func)0) { + return Z_STREAM_ERROR; + } + + strm->total_in = strm->total_out = 0; + strm->msg = Z_NULL; /* use zfree if we ever allocate msg dynamically */ + strm->data_type = Z_UNKNOWN; + + s = (deflate_state *)strm->state; + s->pending = 0; + s->pending_out = s->pending_buf; + + if (s->wrap < 0) { + s->wrap = -s->wrap; /* was made negative by deflate(..., Z_FINISH); */ + } + s->status = s->wrap ? INIT_STATE : BUSY_STATE; + strm->adler = +#ifdef GZIP + s->wrap == 2 ? crc32(0L, Z_NULL, 0) : +#endif + adler32(0L, Z_NULL, 0); + s->last_flush = Z_NO_FLUSH; + + _tr_init(s); + lm_init(s); + + return Z_OK; +} + +/* ========================================================================= */ +int ZEXPORT deflateSetHeader (strm, head) + z_streamp strm; + gz_headerp head; +{ + if (strm == Z_NULL || strm->state == Z_NULL) return Z_STREAM_ERROR; + if (strm->state->wrap != 2) return Z_STREAM_ERROR; + strm->state->gzhead = head; + return Z_OK; +} + +/* ========================================================================= */ +int ZEXPORT deflatePrime (strm, bits, value) + z_streamp strm; + int bits; + int value; +{ + if (strm == Z_NULL || strm->state == Z_NULL) return Z_STREAM_ERROR; + strm->state->bi_valid = bits; + strm->state->bi_buf = (ush)(value & ((1 << bits) - 1)); + return Z_OK; +} + +/* ========================================================================= */ +int ZEXPORT deflateParams(strm, level, strategy) + z_streamp strm; + int level; + int strategy; +{ + deflate_state *s; + compress_func func; + int err = Z_OK; + + if (strm == Z_NULL || strm->state == Z_NULL) return Z_STREAM_ERROR; + s = strm->state; + +#ifdef FASTEST + if (level != 0) level = 1; +#else + if (level == Z_DEFAULT_COMPRESSION) level = 6; +#endif + if (level < 0 || level > 9 || strategy < 0 || strategy > Z_FIXED) { + return Z_STREAM_ERROR; + } + func = configuration_table[s->level].func; + + if ((strategy != s->strategy || func != configuration_table[level].func) && + strm->total_in != 0) { + /* Flush the last buffer: */ + err = deflate(strm, Z_BLOCK); + } + if (s->level != level) { + s->level = level; + s->max_lazy_match = configuration_table[level].max_lazy; + s->good_match = configuration_table[level].good_length; + s->nice_match = configuration_table[level].nice_length; + s->max_chain_length = configuration_table[level].max_chain; + } + s->strategy = strategy; + return err; +} + +/* ========================================================================= */ +int ZEXPORT deflateTune(strm, good_length, max_lazy, nice_length, max_chain) + z_streamp strm; + int good_length; + int max_lazy; + int nice_length; + int max_chain; +{ + deflate_state *s; + + if (strm == Z_NULL || strm->state == Z_NULL) return Z_STREAM_ERROR; + s = strm->state; + s->good_match = good_length; + s->max_lazy_match = max_lazy; + s->nice_match = nice_length; + s->max_chain_length = max_chain; + return Z_OK; +} + +/* ========================================================================= + * For the default windowBits of 15 and memLevel of 8, this function returns + * a close to exact, as well as small, upper bound on the compressed size. + * They are coded as constants here for a reason--if the #define's are + * changed, then this function needs to be changed as well. The return + * value for 15 and 8 only works for those exact settings. + * + * For any setting other than those defaults for windowBits and memLevel, + * the value returned is a conservative worst case for the maximum expansion + * resulting from using fixed blocks instead of stored blocks, which deflate + * can emit on compressed data for some combinations of the parameters. + * + * This function could be more sophisticated to provide closer upper bounds for + * every combination of windowBits and memLevel. But even the conservative + * upper bound of about 14% expansion does not seem onerous for output buffer + * allocation. + */ +uLong ZEXPORT deflateBound(strm, sourceLen) + z_streamp strm; + uLong sourceLen; +{ + deflate_state *s; + uLong complen, wraplen; + Bytef *str; + + /* conservative upper bound for compressed data */ + complen = sourceLen + + ((sourceLen + 7) >> 3) + ((sourceLen + 63) >> 6) + 5; + + /* if can't get parameters, return conservative bound plus zlib wrapper */ + if (strm == Z_NULL || strm->state == Z_NULL) + return complen + 6; + + /* compute wrapper length */ + s = strm->state; + switch (s->wrap) { + case 0: /* raw deflate */ + wraplen = 0; + break; + case 1: /* zlib wrapper */ + wraplen = 6 + (s->strstart ? 4 : 0); + break; + case 2: /* gzip wrapper */ + wraplen = 18; + if (s->gzhead != Z_NULL) { /* user-supplied gzip header */ + if (s->gzhead->extra != Z_NULL) + wraplen += 2 + s->gzhead->extra_len; + str = s->gzhead->name; + if (str != Z_NULL) + do { + wraplen++; + } while (*str++); + str = s->gzhead->comment; + if (str != Z_NULL) + do { + wraplen++; + } while (*str++); + if (s->gzhead->hcrc) + wraplen += 2; + } + break; + default: /* for compiler happiness */ + wraplen = 6; + } + + /* if not default parameters, return conservative bound */ + if (s->w_bits != 15 || s->hash_bits != 8 + 7) + return complen + wraplen; + + /* default settings: return tight bound for that case */ + return sourceLen + (sourceLen >> 12) + (sourceLen >> 14) + + (sourceLen >> 25) + 13 - 6 + wraplen; +} + +/* ========================================================================= + * Put a short in the pending buffer. The 16-bit value is put in MSB order. + * IN assertion: the stream state is correct and there is enough room in + * pending_buf. + */ +local void putShortMSB (s, b) + deflate_state *s; + uInt b; +{ + put_byte(s, (Byte)(b >> 8)); + put_byte(s, (Byte)(b & 0xff)); +} + +/* ========================================================================= + * Flush as much pending output as possible. All deflate() output goes + * through this function so some applications may wish to modify it + * to avoid allocating a large strm->next_out buffer and copying into it. + * (See also read_buf()). + */ +local void flush_pending(strm) + z_streamp strm; +{ + unsigned len = strm->state->pending; + + if (len > strm->avail_out) len = strm->avail_out; + if (len == 0) return; + + zmemcpy(strm->next_out, strm->state->pending_out, len); + strm->next_out += len; + strm->state->pending_out += len; + strm->total_out += len; + strm->avail_out -= len; + strm->state->pending -= len; + if (strm->state->pending == 0) { + strm->state->pending_out = strm->state->pending_buf; + } +} + +/* ========================================================================= */ +int ZEXPORT deflate (strm, flush) + z_streamp strm; + int flush; +{ + int old_flush; /* value of flush param for previous deflate call */ + deflate_state *s; + + if (strm == Z_NULL || strm->state == Z_NULL || + flush > Z_BLOCK || flush < 0) { + return Z_STREAM_ERROR; + } + s = strm->state; + + if (strm->next_out == Z_NULL || + (strm->next_in == Z_NULL && strm->avail_in != 0) || + (s->status == FINISH_STATE && flush != Z_FINISH)) { + ERR_RETURN(strm, Z_STREAM_ERROR); + } + if (strm->avail_out == 0) ERR_RETURN(strm, Z_BUF_ERROR); + + s->strm = strm; /* just in case */ + old_flush = s->last_flush; + s->last_flush = flush; + + /* Write the header */ + if (s->status == INIT_STATE) { +#ifdef GZIP + if (s->wrap == 2) { + strm->adler = crc32(0L, Z_NULL, 0); + put_byte(s, 31); + put_byte(s, 139); + put_byte(s, 8); + if (s->gzhead == Z_NULL) { + put_byte(s, 0); + put_byte(s, 0); + put_byte(s, 0); + put_byte(s, 0); + put_byte(s, 0); + put_byte(s, s->level == 9 ? 2 : + (s->strategy >= Z_HUFFMAN_ONLY || s->level < 2 ? + 4 : 0)); + put_byte(s, OS_CODE); + s->status = BUSY_STATE; + } + else { + put_byte(s, (s->gzhead->text ? 1 : 0) + + (s->gzhead->hcrc ? 2 : 0) + + (s->gzhead->extra == Z_NULL ? 0 : 4) + + (s->gzhead->name == Z_NULL ? 0 : 8) + + (s->gzhead->comment == Z_NULL ? 0 : 16) + ); + put_byte(s, (Byte)(s->gzhead->time & 0xff)); + put_byte(s, (Byte)((s->gzhead->time >> 8) & 0xff)); + put_byte(s, (Byte)((s->gzhead->time >> 16) & 0xff)); + put_byte(s, (Byte)((s->gzhead->time >> 24) & 0xff)); + put_byte(s, s->level == 9 ? 2 : + (s->strategy >= Z_HUFFMAN_ONLY || s->level < 2 ? + 4 : 0)); + put_byte(s, s->gzhead->os & 0xff); + if (s->gzhead->extra != Z_NULL) { + put_byte(s, s->gzhead->extra_len & 0xff); + put_byte(s, (s->gzhead->extra_len >> 8) & 0xff); + } + if (s->gzhead->hcrc) + strm->adler = crc32(strm->adler, s->pending_buf, + s->pending); + s->gzindex = 0; + s->status = EXTRA_STATE; + } + } + else +#endif + { + uInt header = (Z_DEFLATED + ((s->w_bits-8)<<4)) << 8; + uInt level_flags; + + if (s->strategy >= Z_HUFFMAN_ONLY || s->level < 2) + level_flags = 0; + else if (s->level < 6) + level_flags = 1; + else if (s->level == 6) + level_flags = 2; + else + level_flags = 3; + header |= (level_flags << 6); + if (s->strstart != 0) header |= PRESET_DICT; + header += 31 - (header % 31); + + s->status = BUSY_STATE; + putShortMSB(s, header); + + /* Save the adler32 of the preset dictionary: */ + if (s->strstart != 0) { + putShortMSB(s, (uInt)(strm->adler >> 16)); + putShortMSB(s, (uInt)(strm->adler & 0xffff)); + } + strm->adler = adler32(0L, Z_NULL, 0); + } + } +#ifdef GZIP + if (s->status == EXTRA_STATE) { + if (s->gzhead->extra != Z_NULL) { + uInt beg = s->pending; /* start of bytes to update crc */ + + while (s->gzindex < (s->gzhead->extra_len & 0xffff)) { + if (s->pending == s->pending_buf_size) { + if (s->gzhead->hcrc && s->pending > beg) + strm->adler = crc32(strm->adler, s->pending_buf + beg, + s->pending - beg); + flush_pending(strm); + beg = s->pending; + if (s->pending == s->pending_buf_size) + break; + } + put_byte(s, s->gzhead->extra[s->gzindex]); + s->gzindex++; + } + if (s->gzhead->hcrc && s->pending > beg) + strm->adler = crc32(strm->adler, s->pending_buf + beg, + s->pending - beg); + if (s->gzindex == s->gzhead->extra_len) { + s->gzindex = 0; + s->status = NAME_STATE; + } + } + else + s->status = NAME_STATE; + } + if (s->status == NAME_STATE) { + if (s->gzhead->name != Z_NULL) { + uInt beg = s->pending; /* start of bytes to update crc */ + int val; + + do { + if (s->pending == s->pending_buf_size) { + if (s->gzhead->hcrc && s->pending > beg) + strm->adler = crc32(strm->adler, s->pending_buf + beg, + s->pending - beg); + flush_pending(strm); + beg = s->pending; + if (s->pending == s->pending_buf_size) { + val = 1; + break; + } + } + val = s->gzhead->name[s->gzindex++]; + put_byte(s, val); + } while (val != 0); + if (s->gzhead->hcrc && s->pending > beg) + strm->adler = crc32(strm->adler, s->pending_buf + beg, + s->pending - beg); + if (val == 0) { + s->gzindex = 0; + s->status = COMMENT_STATE; + } + } + else + s->status = COMMENT_STATE; + } + if (s->status == COMMENT_STATE) { + if (s->gzhead->comment != Z_NULL) { + uInt beg = s->pending; /* start of bytes to update crc */ + int val; + + do { + if (s->pending == s->pending_buf_size) { + if (s->gzhead->hcrc && s->pending > beg) + strm->adler = crc32(strm->adler, s->pending_buf + beg, + s->pending - beg); + flush_pending(strm); + beg = s->pending; + if (s->pending == s->pending_buf_size) { + val = 1; + break; + } + } + val = s->gzhead->comment[s->gzindex++]; + put_byte(s, val); + } while (val != 0); + if (s->gzhead->hcrc && s->pending > beg) + strm->adler = crc32(strm->adler, s->pending_buf + beg, + s->pending - beg); + if (val == 0) + s->status = HCRC_STATE; + } + else + s->status = HCRC_STATE; + } + if (s->status == HCRC_STATE) { + if (s->gzhead->hcrc) { + if (s->pending + 2 > s->pending_buf_size) + flush_pending(strm); + if (s->pending + 2 <= s->pending_buf_size) { + put_byte(s, (Byte)(strm->adler & 0xff)); + put_byte(s, (Byte)((strm->adler >> 8) & 0xff)); + strm->adler = crc32(0L, Z_NULL, 0); + s->status = BUSY_STATE; + } + } + else + s->status = BUSY_STATE; + } +#endif + + /* Flush as much pending output as possible */ + if (s->pending != 0) { + flush_pending(strm); + if (strm->avail_out == 0) { + /* Since avail_out is 0, deflate will be called again with + * more output space, but possibly with both pending and + * avail_in equal to zero. There won't be anything to do, + * but this is not an error situation so make sure we + * return OK instead of BUF_ERROR at next call of deflate: + */ + s->last_flush = -1; + return Z_OK; + } + + /* Make sure there is something to do and avoid duplicate consecutive + * flushes. For repeated and useless calls with Z_FINISH, we keep + * returning Z_STREAM_END instead of Z_BUF_ERROR. + */ + } else if (strm->avail_in == 0 && flush <= old_flush && + flush != Z_FINISH) { + ERR_RETURN(strm, Z_BUF_ERROR); + } + + /* User must not provide more input after the first FINISH: */ + if (s->status == FINISH_STATE && strm->avail_in != 0) { + ERR_RETURN(strm, Z_BUF_ERROR); + } + + /* Start a new block or continue the current one. + */ + if (strm->avail_in != 0 || s->lookahead != 0 || + (flush != Z_NO_FLUSH && s->status != FINISH_STATE)) { + block_state bstate; + + bstate = s->strategy == Z_HUFFMAN_ONLY ? deflate_huff(s, flush) : + (s->strategy == Z_RLE ? deflate_rle(s, flush) : + (*(configuration_table[s->level].func))(s, flush)); + + if (bstate == finish_started || bstate == finish_done) { + s->status = FINISH_STATE; + } + if (bstate == need_more || bstate == finish_started) { + if (strm->avail_out == 0) { + s->last_flush = -1; /* avoid BUF_ERROR next call, see above */ + } + return Z_OK; + /* If flush != Z_NO_FLUSH && avail_out == 0, the next call + * of deflate should use the same flush parameter to make sure + * that the flush is complete. So we don't have to output an + * empty block here, this will be done at next call. This also + * ensures that for a very small output buffer, we emit at most + * one empty block. + */ + } + if (bstate == block_done) { + if (flush == Z_PARTIAL_FLUSH) { + _tr_align(s); + } else if (flush != Z_BLOCK) { /* FULL_FLUSH or SYNC_FLUSH */ + _tr_stored_block(s, (char*)0, 0L, 0); + /* For a full flush, this empty block will be recognized + * as a special marker by inflate_sync(). + */ + if (flush == Z_FULL_FLUSH) { + CLEAR_HASH(s); /* forget history */ + if (s->lookahead == 0) { + s->strstart = 0; + s->block_start = 0L; + } + } + } + flush_pending(strm); + if (strm->avail_out == 0) { + s->last_flush = -1; /* avoid BUF_ERROR at next call, see above */ + return Z_OK; + } + } + } + Assert(strm->avail_out > 0, "bug2"); + + if (flush != Z_FINISH) return Z_OK; + if (s->wrap <= 0) return Z_STREAM_END; + + /* Write the trailer */ +#ifdef GZIP + if (s->wrap == 2) { + put_byte(s, (Byte)(strm->adler & 0xff)); + put_byte(s, (Byte)((strm->adler >> 8) & 0xff)); + put_byte(s, (Byte)((strm->adler >> 16) & 0xff)); + put_byte(s, (Byte)((strm->adler >> 24) & 0xff)); + put_byte(s, (Byte)(strm->total_in & 0xff)); + put_byte(s, (Byte)((strm->total_in >> 8) & 0xff)); + put_byte(s, (Byte)((strm->total_in >> 16) & 0xff)); + put_byte(s, (Byte)((strm->total_in >> 24) & 0xff)); + } + else +#endif + { + putShortMSB(s, (uInt)(strm->adler >> 16)); + putShortMSB(s, (uInt)(strm->adler & 0xffff)); + } + flush_pending(strm); + /* If avail_out is zero, the application will call deflate again + * to flush the rest. + */ + if (s->wrap > 0) s->wrap = -s->wrap; /* write the trailer only once! */ + return s->pending != 0 ? Z_OK : Z_STREAM_END; +} + +/* ========================================================================= */ +int ZEXPORT deflateEnd (strm) + z_streamp strm; +{ + int status; + + if (strm == Z_NULL || strm->state == Z_NULL) return Z_STREAM_ERROR; + + status = strm->state->status; + if (status != INIT_STATE && + status != EXTRA_STATE && + status != NAME_STATE && + status != COMMENT_STATE && + status != HCRC_STATE && + status != BUSY_STATE && + status != FINISH_STATE) { + return Z_STREAM_ERROR; + } + + /* Deallocate in reverse order of allocations: */ + TRY_FREE(strm, strm->state->pending_buf); + TRY_FREE(strm, strm->state->head); + TRY_FREE(strm, strm->state->prev); + TRY_FREE(strm, strm->state->window); + + ZFREE(strm, strm->state); + strm->state = Z_NULL; + + return status == BUSY_STATE ? Z_DATA_ERROR : Z_OK; +} + +/* ========================================================================= + * Copy the source state to the destination state. + * To simplify the source, this is not supported for 16-bit MSDOS (which + * doesn't have enough memory anyway to duplicate compression states). + */ +int ZEXPORT deflateCopy (dest, source) + z_streamp dest; + z_streamp source; +{ +#ifdef MAXSEG_64K + return Z_STREAM_ERROR; +#else + deflate_state *ds; + deflate_state *ss; + ushf *overlay; + + + if (source == Z_NULL || dest == Z_NULL || source->state == Z_NULL) { + return Z_STREAM_ERROR; + } + + ss = source->state; + + zmemcpy(dest, source, sizeof(z_stream)); + + ds = (deflate_state *) ZALLOC(dest, 1, sizeof(deflate_state)); + if (ds == Z_NULL) return Z_MEM_ERROR; + dest->state = (struct internal_state FAR *) ds; + zmemcpy(ds, ss, sizeof(deflate_state)); + ds->strm = dest; + + ds->window = (Bytef *) ZALLOC(dest, ds->w_size, 2*sizeof(Byte)); + ds->prev = (Posf *) ZALLOC(dest, ds->w_size, sizeof(Pos)); + ds->head = (Posf *) ZALLOC(dest, ds->hash_size, sizeof(Pos)); + overlay = (ushf *) ZALLOC(dest, ds->lit_bufsize, sizeof(ush)+2); + ds->pending_buf = (uchf *) overlay; + + if (ds->window == Z_NULL || ds->prev == Z_NULL || ds->head == Z_NULL || + ds->pending_buf == Z_NULL) { + deflateEnd (dest); + return Z_MEM_ERROR; + } + /* following zmemcpy do not work for 16-bit MSDOS */ + zmemcpy(ds->window, ss->window, ds->w_size * 2 * sizeof(Byte)); + zmemcpy(ds->prev, ss->prev, ds->w_size * sizeof(Pos)); + zmemcpy(ds->head, ss->head, ds->hash_size * sizeof(Pos)); + zmemcpy(ds->pending_buf, ss->pending_buf, (uInt)ds->pending_buf_size); + + ds->pending_out = ds->pending_buf + (ss->pending_out - ss->pending_buf); + ds->d_buf = overlay + ds->lit_bufsize/sizeof(ush); + ds->l_buf = ds->pending_buf + (1+sizeof(ush))*ds->lit_bufsize; + + ds->l_desc.dyn_tree = ds->dyn_ltree; + ds->d_desc.dyn_tree = ds->dyn_dtree; + ds->bl_desc.dyn_tree = ds->bl_tree; + + return Z_OK; +#endif /* MAXSEG_64K */ +} + +/* =========================================================================== + * Read a new buffer from the current input stream, update the adler32 + * and total number of bytes read. All deflate() input goes through + * this function so some applications may wish to modify it to avoid + * allocating a large strm->next_in buffer and copying from it. + * (See also flush_pending()). + */ +local int read_buf(strm, buf, size) + z_streamp strm; + Bytef *buf; + unsigned size; +{ + unsigned len = strm->avail_in; + + if (len > size) len = size; + if (len == 0) return 0; + + strm->avail_in -= len; + + if (strm->state->wrap == 1) { + strm->adler = adler32(strm->adler, strm->next_in, len); + } +#ifdef GZIP + else if (strm->state->wrap == 2) { + strm->adler = crc32(strm->adler, strm->next_in, len); + } +#endif + zmemcpy(buf, strm->next_in, len); + strm->next_in += len; + strm->total_in += len; + + return (int)len; +} + +/* =========================================================================== + * Initialize the "longest match" routines for a new zlib stream + */ +local void lm_init (s) + deflate_state *s; +{ + s->window_size = (ulg)2L*s->w_size; + + CLEAR_HASH(s); + + /* Set the default configuration parameters: + */ + s->max_lazy_match = configuration_table[s->level].max_lazy; + s->good_match = configuration_table[s->level].good_length; + s->nice_match = configuration_table[s->level].nice_length; + s->max_chain_length = configuration_table[s->level].max_chain; + + s->strstart = 0; + s->block_start = 0L; + s->lookahead = 0; + s->match_length = s->prev_length = MIN_MATCH-1; + s->match_available = 0; + s->ins_h = 0; +#ifndef FASTEST +#ifdef ASMV + match_init(); /* initialize the asm code */ +#endif +#endif +} + +#ifndef FASTEST +/* =========================================================================== + * Set match_start to the longest match starting at the given string and + * return its length. Matches shorter or equal to prev_length are discarded, + * in which case the result is equal to prev_length and match_start is + * garbage. + * IN assertions: cur_match is the head of the hash chain for the current + * string (strstart) and its distance is <= MAX_DIST, and prev_length >= 1 + * OUT assertion: the match length is not greater than s->lookahead. + */ +#ifndef ASMV +/* For 80x86 and 680x0, an optimized version will be provided in match.asm or + * match.S. The code will be functionally equivalent. + */ +local uInt longest_match(s, cur_match) + deflate_state *s; + IPos cur_match; /* current match */ +{ + unsigned chain_length = s->max_chain_length;/* max hash chain length */ + register Bytef *scan = s->window + s->strstart; /* current string */ + register Bytef *match; /* matched string */ + register int len; /* length of current match */ + int best_len = s->prev_length; /* best match length so far */ + int nice_match = s->nice_match; /* stop if match long enough */ + IPos limit = s->strstart > (IPos)MAX_DIST(s) ? + s->strstart - (IPos)MAX_DIST(s) : NIL; + /* Stop when cur_match becomes <= limit. To simplify the code, + * we prevent matches with the string of window index 0. + */ + Posf *prev = s->prev; + uInt wmask = s->w_mask; + +#ifdef UNALIGNED_OK + /* Compare two bytes at a time. Note: this is not always beneficial. + * Try with and without -DUNALIGNED_OK to check. + */ + register Bytef *strend = s->window + s->strstart + MAX_MATCH - 1; + register ush scan_start = *(ushf*)scan; + register ush scan_end = *(ushf*)(scan+best_len-1); +#else + register Bytef *strend = s->window + s->strstart + MAX_MATCH; + register Byte scan_end1 = scan[best_len-1]; + register Byte scan_end = scan[best_len]; +#endif + + /* The code is optimized for HASH_BITS >= 8 and MAX_MATCH-2 multiple of 16. + * It is easy to get rid of this optimization if necessary. + */ + Assert(s->hash_bits >= 8 && MAX_MATCH == 258, "Code too clever"); + + /* Do not waste too much time if we already have a good match: */ + if (s->prev_length >= s->good_match) { + chain_length >>= 2; + } + /* Do not look for matches beyond the end of the input. This is necessary + * to make deflate deterministic. + */ + if ((uInt)nice_match > s->lookahead) nice_match = s->lookahead; + + Assert((ulg)s->strstart <= s->window_size-MIN_LOOKAHEAD, "need lookahead"); + + do { + Assert(cur_match < s->strstart, "no future"); + match = s->window + cur_match; + + /* Skip to next match if the match length cannot increase + * or if the match length is less than 2. Note that the checks below + * for insufficient lookahead only occur occasionally for performance + * reasons. Therefore uninitialized memory will be accessed, and + * conditional jumps will be made that depend on those values. + * However the length of the match is limited to the lookahead, so + * the output of deflate is not affected by the uninitialized values. + */ +#if (defined(UNALIGNED_OK) && MAX_MATCH == 258) + /* This code assumes sizeof(unsigned short) == 2. Do not use + * UNALIGNED_OK if your compiler uses a different size. + */ + if (*(ushf*)(match+best_len-1) != scan_end || + *(ushf*)match != scan_start) continue; + + /* It is not necessary to compare scan[2] and match[2] since they are + * always equal when the other bytes match, given that the hash keys + * are equal and that HASH_BITS >= 8. Compare 2 bytes at a time at + * strstart+3, +5, ... up to strstart+257. We check for insufficient + * lookahead only every 4th comparison; the 128th check will be made + * at strstart+257. If MAX_MATCH-2 is not a multiple of 8, it is + * necessary to put more guard bytes at the end of the window, or + * to check more often for insufficient lookahead. + */ + Assert(scan[2] == match[2], "scan[2]?"); + scan++, match++; + do { + } while (*(ushf*)(scan+=2) == *(ushf*)(match+=2) && + *(ushf*)(scan+=2) == *(ushf*)(match+=2) && + *(ushf*)(scan+=2) == *(ushf*)(match+=2) && + *(ushf*)(scan+=2) == *(ushf*)(match+=2) && + scan < strend); + /* The funny "do {}" generates better code on most compilers */ + + /* Here, scan <= window+strstart+257 */ + Assert(scan <= s->window+(unsigned)(s->window_size-1), "wild scan"); + if (*scan == *match) scan++; + + len = (MAX_MATCH - 1) - (int)(strend-scan); + scan = strend - (MAX_MATCH-1); + +#else /* UNALIGNED_OK */ + + if (match[best_len] != scan_end || + match[best_len-1] != scan_end1 || + *match != *scan || + *++match != scan[1]) continue; + + /* The check at best_len-1 can be removed because it will be made + * again later. (This heuristic is not always a win.) + * It is not necessary to compare scan[2] and match[2] since they + * are always equal when the other bytes match, given that + * the hash keys are equal and that HASH_BITS >= 8. + */ + scan += 2, match++; + Assert(*scan == *match, "match[2]?"); + + /* We check for insufficient lookahead only every 8th comparison; + * the 256th check will be made at strstart+258. + */ + do { + } while (*++scan == *++match && *++scan == *++match && + *++scan == *++match && *++scan == *++match && + *++scan == *++match && *++scan == *++match && + *++scan == *++match && *++scan == *++match && + scan < strend); + + Assert(scan <= s->window+(unsigned)(s->window_size-1), "wild scan"); + + len = MAX_MATCH - (int)(strend - scan); + scan = strend - MAX_MATCH; + +#endif /* UNALIGNED_OK */ + + if (len > best_len) { + s->match_start = cur_match; + best_len = len; + if (len >= nice_match) break; +#ifdef UNALIGNED_OK + scan_end = *(ushf*)(scan+best_len-1); +#else + scan_end1 = scan[best_len-1]; + scan_end = scan[best_len]; +#endif + } + } while ((cur_match = prev[cur_match & wmask]) > limit + && --chain_length != 0); + + if ((uInt)best_len <= s->lookahead) return (uInt)best_len; + return s->lookahead; +} +#endif /* ASMV */ + +#else /* FASTEST */ + +/* --------------------------------------------------------------------------- + * Optimized version for FASTEST only + */ +local uInt longest_match(s, cur_match) + deflate_state *s; + IPos cur_match; /* current match */ +{ + register Bytef *scan = s->window + s->strstart; /* current string */ + register Bytef *match; /* matched string */ + register int len; /* length of current match */ + register Bytef *strend = s->window + s->strstart + MAX_MATCH; + + /* The code is optimized for HASH_BITS >= 8 and MAX_MATCH-2 multiple of 16. + * It is easy to get rid of this optimization if necessary. + */ + Assert(s->hash_bits >= 8 && MAX_MATCH == 258, "Code too clever"); + + Assert((ulg)s->strstart <= s->window_size-MIN_LOOKAHEAD, "need lookahead"); + + Assert(cur_match < s->strstart, "no future"); + + match = s->window + cur_match; + + /* Return failure if the match length is less than 2: + */ + if (match[0] != scan[0] || match[1] != scan[1]) return MIN_MATCH-1; + + /* The check at best_len-1 can be removed because it will be made + * again later. (This heuristic is not always a win.) + * It is not necessary to compare scan[2] and match[2] since they + * are always equal when the other bytes match, given that + * the hash keys are equal and that HASH_BITS >= 8. + */ + scan += 2, match += 2; + Assert(*scan == *match, "match[2]?"); + + /* We check for insufficient lookahead only every 8th comparison; + * the 256th check will be made at strstart+258. + */ + do { + } while (*++scan == *++match && *++scan == *++match && + *++scan == *++match && *++scan == *++match && + *++scan == *++match && *++scan == *++match && + *++scan == *++match && *++scan == *++match && + scan < strend); + + Assert(scan <= s->window+(unsigned)(s->window_size-1), "wild scan"); + + len = MAX_MATCH - (int)(strend - scan); + + if (len < MIN_MATCH) return MIN_MATCH - 1; + + s->match_start = cur_match; + return (uInt)len <= s->lookahead ? (uInt)len : s->lookahead; +} + +#endif /* FASTEST */ + +#ifdef DEBUG +/* =========================================================================== + * Check that the match at match_start is indeed a match. + */ +local void check_match(s, start, match, length) + deflate_state *s; + IPos start, match; + int length; +{ + /* check that the match is indeed a match */ + if (zmemcmp(s->window + match, + s->window + start, length) != EQUAL) { + fprintf(stderr, " start %u, match %u, length %d\n", + start, match, length); + do { + fprintf(stderr, "%c%c", s->window[match++], s->window[start++]); + } while (--length != 0); + z_error("invalid match"); + } + if (z_verbose > 1) { + fprintf(stderr,"\\[%d,%d]", start-match, length); + do { putc(s->window[start++], stderr); } while (--length != 0); + } +} +#else +# define check_match(s, start, match, length) +#endif /* DEBUG */ + +/* =========================================================================== + * Fill the window when the lookahead becomes insufficient. + * Updates strstart and lookahead. + * + * IN assertion: lookahead < MIN_LOOKAHEAD + * OUT assertions: strstart <= window_size-MIN_LOOKAHEAD + * At least one byte has been read, or avail_in == 0; reads are + * performed for at least two bytes (required for the zip translate_eol + * option -- not supported here). + */ +local void fill_window(s) + deflate_state *s; +{ + register unsigned n, m; + register Posf *p; + unsigned more; /* Amount of free space at the end of the window. */ + uInt wsize = s->w_size; + + do { + more = (unsigned)(s->window_size -(ulg)s->lookahead -(ulg)s->strstart); + + /* Deal with !@#$% 64K limit: */ + if (sizeof(int) <= 2) { + if (more == 0 && s->strstart == 0 && s->lookahead == 0) { + more = wsize; + + } else if (more == (unsigned)(-1)) { + /* Very unlikely, but possible on 16 bit machine if + * strstart == 0 && lookahead == 1 (input done a byte at time) + */ + more--; + } + } + + /* If the window is almost full and there is insufficient lookahead, + * move the upper half to the lower one to make room in the upper half. + */ + if (s->strstart >= wsize+MAX_DIST(s)) { + + zmemcpy(s->window, s->window+wsize, (unsigned)wsize); + s->match_start -= wsize; + s->strstart -= wsize; /* we now have strstart >= MAX_DIST */ + s->block_start -= (long) wsize; + + /* Slide the hash table (could be avoided with 32 bit values + at the expense of memory usage). We slide even when level == 0 + to keep the hash table consistent if we switch back to level > 0 + later. (Using level 0 permanently is not an optimal usage of + zlib, so we don't care about this pathological case.) + */ + n = s->hash_size; + p = &s->head[n]; + do { + m = *--p; + *p = (Pos)(m >= wsize ? m-wsize : NIL); + } while (--n); + + n = wsize; +#ifndef FASTEST + p = &s->prev[n]; + do { + m = *--p; + *p = (Pos)(m >= wsize ? m-wsize : NIL); + /* If n is not on any hash chain, prev[n] is garbage but + * its value will never be used. + */ + } while (--n); +#endif + more += wsize; + } + if (s->strm->avail_in == 0) return; + + /* If there was no sliding: + * strstart <= WSIZE+MAX_DIST-1 && lookahead <= MIN_LOOKAHEAD - 1 && + * more == window_size - lookahead - strstart + * => more >= window_size - (MIN_LOOKAHEAD-1 + WSIZE + MAX_DIST-1) + * => more >= window_size - 2*WSIZE + 2 + * In the BIG_MEM or MMAP case (not yet supported), + * window_size == input_size + MIN_LOOKAHEAD && + * strstart + s->lookahead <= input_size => more >= MIN_LOOKAHEAD. + * Otherwise, window_size == 2*WSIZE so more >= 2. + * If there was sliding, more >= WSIZE. So in all cases, more >= 2. + */ + Assert(more >= 2, "more < 2"); + + n = read_buf(s->strm, s->window + s->strstart + s->lookahead, more); + s->lookahead += n; + + /* Initialize the hash value now that we have some input: */ + if (s->lookahead >= MIN_MATCH) { + s->ins_h = s->window[s->strstart]; + UPDATE_HASH(s, s->ins_h, s->window[s->strstart+1]); +#if MIN_MATCH != 3 + Call UPDATE_HASH() MIN_MATCH-3 more times +#endif + } + /* If the whole input has less than MIN_MATCH bytes, ins_h is garbage, + * but this is not important since only literal bytes will be emitted. + */ + + } while (s->lookahead < MIN_LOOKAHEAD && s->strm->avail_in != 0); + + /* If the WIN_INIT bytes after the end of the current data have never been + * written, then zero those bytes in order to avoid memory check reports of + * the use of uninitialized (or uninitialised as Julian writes) bytes by + * the longest match routines. Update the high water mark for the next + * time through here. WIN_INIT is set to MAX_MATCH since the longest match + * routines allow scanning to strstart + MAX_MATCH, ignoring lookahead. + */ + if (s->high_water < s->window_size) { + ulg curr = s->strstart + (ulg)(s->lookahead); + ulg init; + + if (s->high_water < curr) { + /* Previous high water mark below current data -- zero WIN_INIT + * bytes or up to end of window, whichever is less. + */ + init = s->window_size - curr; + if (init > WIN_INIT) + init = WIN_INIT; + zmemzero(s->window + curr, (unsigned)init); + s->high_water = curr + init; + } + else if (s->high_water < (ulg)curr + WIN_INIT) { + /* High water mark at or above current data, but below current data + * plus WIN_INIT -- zero out to current data plus WIN_INIT, or up + * to end of window, whichever is less. + */ + init = (ulg)curr + WIN_INIT - s->high_water; + if (init > s->window_size - s->high_water) + init = s->window_size - s->high_water; + zmemzero(s->window + s->high_water, (unsigned)init); + s->high_water += init; + } + } +} + +/* =========================================================================== + * Flush the current block, with given end-of-file flag. + * IN assertion: strstart is set to the end of the current match. + */ +#define FLUSH_BLOCK_ONLY(s, last) { \ + _tr_flush_block(s, (s->block_start >= 0L ? \ + (charf *)&s->window[(unsigned)s->block_start] : \ + (charf *)Z_NULL), \ + (ulg)((long)s->strstart - s->block_start), \ + (last)); \ + s->block_start = s->strstart; \ + flush_pending(s->strm); \ + Tracev((stderr,"[FLUSH]")); \ +} + +/* Same but force premature exit if necessary. */ +#define FLUSH_BLOCK(s, last) { \ + FLUSH_BLOCK_ONLY(s, last); \ + if (s->strm->avail_out == 0) return (last) ? finish_started : need_more; \ +} + +/* =========================================================================== + * Copy without compression as much as possible from the input stream, return + * the current block state. + * This function does not insert new strings in the dictionary since + * uncompressible data is probably not useful. This function is used + * only for the level=0 compression option. + * NOTE: this function should be optimized to avoid extra copying from + * window to pending_buf. + */ +local block_state deflate_stored(s, flush) + deflate_state *s; + int flush; +{ + /* Stored blocks are limited to 0xffff bytes, pending_buf is limited + * to pending_buf_size, and each stored block has a 5 byte header: + */ + ulg max_block_size = 0xffff; + ulg max_start; + + if (max_block_size > s->pending_buf_size - 5) { + max_block_size = s->pending_buf_size - 5; + } + + /* Copy as much as possible from input to output: */ + for (;;) { + /* Fill the window as much as possible: */ + if (s->lookahead <= 1) { + + Assert(s->strstart < s->w_size+MAX_DIST(s) || + s->block_start >= (long)s->w_size, "slide too late"); + + fill_window(s); + if (s->lookahead == 0 && flush == Z_NO_FLUSH) return need_more; + + if (s->lookahead == 0) break; /* flush the current block */ + } + Assert(s->block_start >= 0L, "block gone"); + + s->strstart += s->lookahead; + s->lookahead = 0; + + /* Emit a stored block if pending_buf will be full: */ + max_start = s->block_start + max_block_size; + if (s->strstart == 0 || (ulg)s->strstart >= max_start) { + /* strstart == 0 is possible when wraparound on 16-bit machine */ + s->lookahead = (uInt)(s->strstart - max_start); + s->strstart = (uInt)max_start; + FLUSH_BLOCK(s, 0); + } + /* Flush if we may have to slide, otherwise block_start may become + * negative and the data will be gone: + */ + if (s->strstart - (uInt)s->block_start >= MAX_DIST(s)) { + FLUSH_BLOCK(s, 0); + } + } + FLUSH_BLOCK(s, flush == Z_FINISH); + return flush == Z_FINISH ? finish_done : block_done; +} + +/* =========================================================================== + * Compress as much as possible from the input stream, return the current + * block state. + * This function does not perform lazy evaluation of matches and inserts + * new strings in the dictionary only for unmatched strings or for short + * matches. It is used only for the fast compression options. + */ +local block_state deflate_fast(s, flush) + deflate_state *s; + int flush; +{ + IPos hash_head; /* head of the hash chain */ + int bflush; /* set if current block must be flushed */ + + for (;;) { + /* Make sure that we always have enough lookahead, except + * at the end of the input file. We need MAX_MATCH bytes + * for the next match, plus MIN_MATCH bytes to insert the + * string following the next match. + */ + if (s->lookahead < MIN_LOOKAHEAD) { + fill_window(s); + if (s->lookahead < MIN_LOOKAHEAD && flush == Z_NO_FLUSH) { + return need_more; + } + if (s->lookahead == 0) break; /* flush the current block */ + } + + /* Insert the string window[strstart .. strstart+2] in the + * dictionary, and set hash_head to the head of the hash chain: + */ + hash_head = NIL; + if (s->lookahead >= MIN_MATCH) { + INSERT_STRING(s, s->strstart, hash_head); + } + + /* Find the longest match, discarding those <= prev_length. + * At this point we have always match_length < MIN_MATCH + */ + if (hash_head != NIL && s->strstart - hash_head <= MAX_DIST(s)) { + /* To simplify the code, we prevent matches with the string + * of window index 0 (in particular we have to avoid a match + * of the string with itself at the start of the input file). + */ + s->match_length = longest_match (s, hash_head); + /* longest_match() sets match_start */ + } + if (s->match_length >= MIN_MATCH) { + check_match(s, s->strstart, s->match_start, s->match_length); + + _tr_tally_dist(s, s->strstart - s->match_start, + s->match_length - MIN_MATCH, bflush); + + s->lookahead -= s->match_length; + + /* Insert new strings in the hash table only if the match length + * is not too large. This saves time but degrades compression. + */ +#ifndef FASTEST + if (s->match_length <= s->max_insert_length && + s->lookahead >= MIN_MATCH) { + s->match_length--; /* string at strstart already in table */ + do { + s->strstart++; + INSERT_STRING(s, s->strstart, hash_head); + /* strstart never exceeds WSIZE-MAX_MATCH, so there are + * always MIN_MATCH bytes ahead. + */ + } while (--s->match_length != 0); + s->strstart++; + } else +#endif + { + s->strstart += s->match_length; + s->match_length = 0; + s->ins_h = s->window[s->strstart]; + UPDATE_HASH(s, s->ins_h, s->window[s->strstart+1]); +#if MIN_MATCH != 3 + Call UPDATE_HASH() MIN_MATCH-3 more times +#endif + /* If lookahead < MIN_MATCH, ins_h is garbage, but it does not + * matter since it will be recomputed at next deflate call. + */ + } + } else { + /* No match, output a literal byte */ + Tracevv((stderr,"%c", s->window[s->strstart])); + _tr_tally_lit (s, s->window[s->strstart], bflush); + s->lookahead--; + s->strstart++; + } + if (bflush) FLUSH_BLOCK(s, 0); + } + FLUSH_BLOCK(s, flush == Z_FINISH); + return flush == Z_FINISH ? finish_done : block_done; +} + +#ifndef FASTEST +/* =========================================================================== + * Same as above, but achieves better compression. We use a lazy + * evaluation for matches: a match is finally adopted only if there is + * no better match at the next window position. + */ +local block_state deflate_slow(s, flush) + deflate_state *s; + int flush; +{ + IPos hash_head; /* head of hash chain */ + int bflush; /* set if current block must be flushed */ + + /* Process the input block. */ + for (;;) { + /* Make sure that we always have enough lookahead, except + * at the end of the input file. We need MAX_MATCH bytes + * for the next match, plus MIN_MATCH bytes to insert the + * string following the next match. + */ + if (s->lookahead < MIN_LOOKAHEAD) { + fill_window(s); + if (s->lookahead < MIN_LOOKAHEAD && flush == Z_NO_FLUSH) { + return need_more; + } + if (s->lookahead == 0) break; /* flush the current block */ + } + + /* Insert the string window[strstart .. strstart+2] in the + * dictionary, and set hash_head to the head of the hash chain: + */ + hash_head = NIL; + if (s->lookahead >= MIN_MATCH) { + INSERT_STRING(s, s->strstart, hash_head); + } + + /* Find the longest match, discarding those <= prev_length. + */ + s->prev_length = s->match_length, s->prev_match = s->match_start; + s->match_length = MIN_MATCH-1; + + if (hash_head != NIL && s->prev_length < s->max_lazy_match && + s->strstart - hash_head <= MAX_DIST(s)) { + /* To simplify the code, we prevent matches with the string + * of window index 0 (in particular we have to avoid a match + * of the string with itself at the start of the input file). + */ + s->match_length = longest_match (s, hash_head); + /* longest_match() sets match_start */ + + if (s->match_length <= 5 && (s->strategy == Z_FILTERED +#if TOO_FAR <= 32767 + || (s->match_length == MIN_MATCH && + s->strstart - s->match_start > TOO_FAR) +#endif + )) { + + /* If prev_match is also MIN_MATCH, match_start is garbage + * but we will ignore the current match anyway. + */ + s->match_length = MIN_MATCH-1; + } + } + /* If there was a match at the previous step and the current + * match is not better, output the previous match: + */ + if (s->prev_length >= MIN_MATCH && s->match_length <= s->prev_length) { + uInt max_insert = s->strstart + s->lookahead - MIN_MATCH; + /* Do not insert strings in hash table beyond this. */ + + check_match(s, s->strstart-1, s->prev_match, s->prev_length); + + _tr_tally_dist(s, s->strstart -1 - s->prev_match, + s->prev_length - MIN_MATCH, bflush); + + /* Insert in hash table all strings up to the end of the match. + * strstart-1 and strstart are already inserted. If there is not + * enough lookahead, the last two strings are not inserted in + * the hash table. + */ + s->lookahead -= s->prev_length-1; + s->prev_length -= 2; + do { + if (++s->strstart <= max_insert) { + INSERT_STRING(s, s->strstart, hash_head); + } + } while (--s->prev_length != 0); + s->match_available = 0; + s->match_length = MIN_MATCH-1; + s->strstart++; + + if (bflush) FLUSH_BLOCK(s, 0); + + } else if (s->match_available) { + /* If there was no match at the previous position, output a + * single literal. If there was a match but the current match + * is longer, truncate the previous match to a single literal. + */ + Tracevv((stderr,"%c", s->window[s->strstart-1])); + _tr_tally_lit(s, s->window[s->strstart-1], bflush); + if (bflush) { + FLUSH_BLOCK_ONLY(s, 0); + } + s->strstart++; + s->lookahead--; + if (s->strm->avail_out == 0) return need_more; + } else { + /* There is no previous match to compare with, wait for + * the next step to decide. + */ + s->match_available = 1; + s->strstart++; + s->lookahead--; + } + } + Assert (flush != Z_NO_FLUSH, "no flush?"); + if (s->match_available) { + Tracevv((stderr,"%c", s->window[s->strstart-1])); + _tr_tally_lit(s, s->window[s->strstart-1], bflush); + s->match_available = 0; + } + FLUSH_BLOCK(s, flush == Z_FINISH); + return flush == Z_FINISH ? finish_done : block_done; +} +#endif /* FASTEST */ + +/* =========================================================================== + * For Z_RLE, simply look for runs of bytes, generate matches only of distance + * one. Do not maintain a hash table. (It will be regenerated if this run of + * deflate switches away from Z_RLE.) + */ +local block_state deflate_rle(s, flush) + deflate_state *s; + int flush; +{ + int bflush; /* set if current block must be flushed */ + uInt prev; /* byte at distance one to match */ + Bytef *scan, *strend; /* scan goes up to strend for length of run */ + + for (;;) { + /* Make sure that we always have enough lookahead, except + * at the end of the input file. We need MAX_MATCH bytes + * for the longest encodable run. + */ + if (s->lookahead < MAX_MATCH) { + fill_window(s); + if (s->lookahead < MAX_MATCH && flush == Z_NO_FLUSH) { + return need_more; + } + if (s->lookahead == 0) break; /* flush the current block */ + } + + /* See how many times the previous byte repeats */ + s->match_length = 0; + if (s->lookahead >= MIN_MATCH && s->strstart > 0) { + scan = s->window + s->strstart - 1; + prev = *scan; + if (prev == *++scan && prev == *++scan && prev == *++scan) { + strend = s->window + s->strstart + MAX_MATCH; + do { + } while (prev == *++scan && prev == *++scan && + prev == *++scan && prev == *++scan && + prev == *++scan && prev == *++scan && + prev == *++scan && prev == *++scan && + scan < strend); + s->match_length = MAX_MATCH - (int)(strend - scan); + if (s->match_length > s->lookahead) + s->match_length = s->lookahead; + } + } + + /* Emit match if have run of MIN_MATCH or longer, else emit literal */ + if (s->match_length >= MIN_MATCH) { + check_match(s, s->strstart, s->strstart - 1, s->match_length); + + _tr_tally_dist(s, 1, s->match_length - MIN_MATCH, bflush); + + s->lookahead -= s->match_length; + s->strstart += s->match_length; + s->match_length = 0; + } else { + /* No match, output a literal byte */ + Tracevv((stderr,"%c", s->window[s->strstart])); + _tr_tally_lit (s, s->window[s->strstart], bflush); + s->lookahead--; + s->strstart++; + } + if (bflush) FLUSH_BLOCK(s, 0); + } + FLUSH_BLOCK(s, flush == Z_FINISH); + return flush == Z_FINISH ? finish_done : block_done; +} + +/* =========================================================================== + * For Z_HUFFMAN_ONLY, do not look for matches. Do not maintain a hash table. + * (It will be regenerated if this run of deflate switches away from Huffman.) + */ +local block_state deflate_huff(s, flush) + deflate_state *s; + int flush; +{ + int bflush; /* set if current block must be flushed */ + + for (;;) { + /* Make sure that we have a literal to write. */ + if (s->lookahead == 0) { + fill_window(s); + if (s->lookahead == 0) { + if (flush == Z_NO_FLUSH) + return need_more; + break; /* flush the current block */ + } + } + + /* Output a literal byte */ + s->match_length = 0; + Tracevv((stderr,"%c", s->window[s->strstart])); + _tr_tally_lit (s, s->window[s->strstart], bflush); + s->lookahead--; + s->strstart++; + if (bflush) FLUSH_BLOCK(s, 0); + } + FLUSH_BLOCK(s, flush == Z_FINISH); + return flush == Z_FINISH ? finish_done : block_done; +} diff --git a/zlib/deflate.h b/zlib/deflate.h new file mode 100644 index 0000000..cbf0d1e --- /dev/null +++ b/zlib/deflate.h @@ -0,0 +1,342 @@ +/* deflate.h -- internal compression state + * Copyright (C) 1995-2010 Jean-loup Gailly + * For conditions of distribution and use, see copyright notice in zlib.h + */ + +/* WARNING: this file should *not* be used by applications. It is + part of the implementation of the compression library and is + subject to change. Applications should only use zlib.h. + */ + +/* @(#) $Id$ */ + +#ifndef DEFLATE_H +#define DEFLATE_H + +#include "zutil.h" + +/* define NO_GZIP when compiling if you want to disable gzip header and + trailer creation by deflate(). NO_GZIP would be used to avoid linking in + the crc code when it is not needed. For shared libraries, gzip encoding + should be left enabled. */ +#ifndef NO_GZIP +# define GZIP +#endif + +/* =========================================================================== + * Internal compression state. + */ + +#define LENGTH_CODES 29 +/* number of length codes, not counting the special END_BLOCK code */ + +#define LITERALS 256 +/* number of literal bytes 0..255 */ + +#define L_CODES (LITERALS+1+LENGTH_CODES) +/* number of Literal or Length codes, including the END_BLOCK code */ + +#define D_CODES 30 +/* number of distance codes */ + +#define BL_CODES 19 +/* number of codes used to transfer the bit lengths */ + +#define HEAP_SIZE (2*L_CODES+1) +/* maximum heap size */ + +#define MAX_BITS 15 +/* All codes must not exceed MAX_BITS bits */ + +#define INIT_STATE 42 +#define EXTRA_STATE 69 +#define NAME_STATE 73 +#define COMMENT_STATE 91 +#define HCRC_STATE 103 +#define BUSY_STATE 113 +#define FINISH_STATE 666 +/* Stream status */ + + +/* Data structure describing a single value and its code string. */ +typedef struct ct_data_s { + union { + ush freq; /* frequency count */ + ush code; /* bit string */ + } fc; + union { + ush dad; /* father node in Huffman tree */ + ush len; /* length of bit string */ + } dl; +} FAR ct_data; + +#define Freq fc.freq +#define Code fc.code +#define Dad dl.dad +#define Len dl.len + +typedef struct static_tree_desc_s static_tree_desc; + +typedef struct tree_desc_s { + ct_data *dyn_tree; /* the dynamic tree */ + int max_code; /* largest code with non zero frequency */ + static_tree_desc *stat_desc; /* the corresponding static tree */ +} FAR tree_desc; + +typedef ush Pos; +typedef Pos FAR Posf; +typedef unsigned IPos; + +/* A Pos is an index in the character window. We use short instead of int to + * save space in the various tables. IPos is used only for parameter passing. + */ + +typedef struct internal_state { + z_streamp strm; /* pointer back to this zlib stream */ + int status; /* as the name implies */ + Bytef *pending_buf; /* output still pending */ + ulg pending_buf_size; /* size of pending_buf */ + Bytef *pending_out; /* next pending byte to output to the stream */ + uInt pending; /* nb of bytes in the pending buffer */ + int wrap; /* bit 0 true for zlib, bit 1 true for gzip */ + gz_headerp gzhead; /* gzip header information to write */ + uInt gzindex; /* where in extra, name, or comment */ + Byte method; /* STORED (for zip only) or DEFLATED */ + int last_flush; /* value of flush param for previous deflate call */ + + /* used by deflate.c: */ + + uInt w_size; /* LZ77 window size (32K by default) */ + uInt w_bits; /* log2(w_size) (8..16) */ + uInt w_mask; /* w_size - 1 */ + + Bytef *window; + /* Sliding window. Input bytes are read into the second half of the window, + * and move to the first half later to keep a dictionary of at least wSize + * bytes. With this organization, matches are limited to a distance of + * wSize-MAX_MATCH bytes, but this ensures that IO is always + * performed with a length multiple of the block size. Also, it limits + * the window size to 64K, which is quite useful on MSDOS. + * To do: use the user input buffer as sliding window. + */ + + ulg window_size; + /* Actual size of window: 2*wSize, except when the user input buffer + * is directly used as sliding window. + */ + + Posf *prev; + /* Link to older string with same hash index. To limit the size of this + * array to 64K, this link is maintained only for the last 32K strings. + * An index in this array is thus a window index modulo 32K. + */ + + Posf *head; /* Heads of the hash chains or NIL. */ + + uInt ins_h; /* hash index of string to be inserted */ + uInt hash_size; /* number of elements in hash table */ + uInt hash_bits; /* log2(hash_size) */ + uInt hash_mask; /* hash_size-1 */ + + uInt hash_shift; + /* Number of bits by which ins_h must be shifted at each input + * step. It must be such that after MIN_MATCH steps, the oldest + * byte no longer takes part in the hash key, that is: + * hash_shift * MIN_MATCH >= hash_bits + */ + + long block_start; + /* Window position at the beginning of the current output block. Gets + * negative when the window is moved backwards. + */ + + uInt match_length; /* length of best match */ + IPos prev_match; /* previous match */ + int match_available; /* set if previous match exists */ + uInt strstart; /* start of string to insert */ + uInt match_start; /* start of matching string */ + uInt lookahead; /* number of valid bytes ahead in window */ + + uInt prev_length; + /* Length of the best match at previous step. Matches not greater than this + * are discarded. This is used in the lazy match evaluation. + */ + + uInt max_chain_length; + /* To speed up deflation, hash chains are never searched beyond this + * length. A higher limit improves compression ratio but degrades the + * speed. + */ + + uInt max_lazy_match; + /* Attempt to find a better match only when the current match is strictly + * smaller than this value. This mechanism is used only for compression + * levels >= 4. + */ +# define max_insert_length max_lazy_match + /* Insert new strings in the hash table only if the match length is not + * greater than this length. This saves time but degrades compression. + * max_insert_length is used only for compression levels <= 3. + */ + + int level; /* compression level (1..9) */ + int strategy; /* favor or force Huffman coding*/ + + uInt good_match; + /* Use a faster search when the previous match is longer than this */ + + int nice_match; /* Stop searching when current match exceeds this */ + + /* used by trees.c: */ + /* Didn't use ct_data typedef below to supress compiler warning */ + struct ct_data_s dyn_ltree[HEAP_SIZE]; /* literal and length tree */ + struct ct_data_s dyn_dtree[2*D_CODES+1]; /* distance tree */ + struct ct_data_s bl_tree[2*BL_CODES+1]; /* Huffman tree for bit lengths */ + + struct tree_desc_s l_desc; /* desc. for literal tree */ + struct tree_desc_s d_desc; /* desc. for distance tree */ + struct tree_desc_s bl_desc; /* desc. for bit length tree */ + + ush bl_count[MAX_BITS+1]; + /* number of codes at each bit length for an optimal tree */ + + int heap[2*L_CODES+1]; /* heap used to build the Huffman trees */ + int heap_len; /* number of elements in the heap */ + int heap_max; /* element of largest frequency */ + /* The sons of heap[n] are heap[2*n] and heap[2*n+1]. heap[0] is not used. + * The same heap array is used to build all trees. + */ + + uch depth[2*L_CODES+1]; + /* Depth of each subtree used as tie breaker for trees of equal frequency + */ + + uchf *l_buf; /* buffer for literals or lengths */ + + uInt lit_bufsize; + /* Size of match buffer for literals/lengths. There are 4 reasons for + * limiting lit_bufsize to 64K: + * - frequencies can be kept in 16 bit counters + * - if compression is not successful for the first block, all input + * data is still in the window so we can still emit a stored block even + * when input comes from standard input. (This can also be done for + * all blocks if lit_bufsize is not greater than 32K.) + * - if compression is not successful for a file smaller than 64K, we can + * even emit a stored file instead of a stored block (saving 5 bytes). + * This is applicable only for zip (not gzip or zlib). + * - creating new Huffman trees less frequently may not provide fast + * adaptation to changes in the input data statistics. (Take for + * example a binary file with poorly compressible code followed by + * a highly compressible string table.) Smaller buffer sizes give + * fast adaptation but have of course the overhead of transmitting + * trees more frequently. + * - I can't count above 4 + */ + + uInt last_lit; /* running index in l_buf */ + + ushf *d_buf; + /* Buffer for distances. To simplify the code, d_buf and l_buf have + * the same number of elements. To use different lengths, an extra flag + * array would be necessary. + */ + + ulg opt_len; /* bit length of current block with optimal trees */ + ulg static_len; /* bit length of current block with static trees */ + uInt matches; /* number of string matches in current block */ + int last_eob_len; /* bit length of EOB code for last block */ + +#ifdef DEBUG + ulg compressed_len; /* total bit length of compressed file mod 2^32 */ + ulg bits_sent; /* bit length of compressed data sent mod 2^32 */ +#endif + + ush bi_buf; + /* Output buffer. bits are inserted starting at the bottom (least + * significant bits). + */ + int bi_valid; + /* Number of valid bits in bi_buf. All bits above the last valid bit + * are always zero. + */ + + ulg high_water; + /* High water mark offset in window for initialized bytes -- bytes above + * this are set to zero in order to avoid memory check warnings when + * longest match routines access bytes past the input. This is then + * updated to the new high water mark. + */ + +} FAR deflate_state; + +/* Output a byte on the stream. + * IN assertion: there is enough room in pending_buf. + */ +#define put_byte(s, c) {s->pending_buf[s->pending++] = (c);} + + +#define MIN_LOOKAHEAD (MAX_MATCH+MIN_MATCH+1) +/* Minimum amount of lookahead, except at the end of the input file. + * See deflate.c for comments about the MIN_MATCH+1. + */ + +#define MAX_DIST(s) ((s)->w_size-MIN_LOOKAHEAD) +/* In order to simplify the code, particularly on 16 bit machines, match + * distances are limited to MAX_DIST instead of WSIZE. + */ + +#define WIN_INIT MAX_MATCH +/* Number of bytes after end of data in window to initialize in order to avoid + memory checker errors from longest match routines */ + + /* in trees.c */ +void ZLIB_INTERNAL _tr_init OF((deflate_state *s)); +int ZLIB_INTERNAL _tr_tally OF((deflate_state *s, unsigned dist, unsigned lc)); +void ZLIB_INTERNAL _tr_flush_block OF((deflate_state *s, charf *buf, + ulg stored_len, int last)); +void ZLIB_INTERNAL _tr_align OF((deflate_state *s)); +void ZLIB_INTERNAL _tr_stored_block OF((deflate_state *s, charf *buf, + ulg stored_len, int last)); + +#define d_code(dist) \ + ((dist) < 256 ? _dist_code[dist] : _dist_code[256+((dist)>>7)]) +/* Mapping from a distance to a distance code. dist is the distance - 1 and + * must not have side effects. _dist_code[256] and _dist_code[257] are never + * used. + */ + +#ifndef DEBUG +/* Inline versions of _tr_tally for speed: */ + +#if defined(GEN_TREES_H) || !defined(STDC) + extern uch ZLIB_INTERNAL _length_code[]; + extern uch ZLIB_INTERNAL _dist_code[]; +#else + extern const uch ZLIB_INTERNAL _length_code[]; + extern const uch ZLIB_INTERNAL _dist_code[]; +#endif + +# define _tr_tally_lit(s, c, flush) \ + { uch cc = (c); \ + s->d_buf[s->last_lit] = 0; \ + s->l_buf[s->last_lit++] = cc; \ + s->dyn_ltree[cc].Freq++; \ + flush = (s->last_lit == s->lit_bufsize-1); \ + } +# define _tr_tally_dist(s, distance, length, flush) \ + { uch len = (length); \ + ush dist = (distance); \ + s->d_buf[s->last_lit] = dist; \ + s->l_buf[s->last_lit++] = len; \ + dist--; \ + s->dyn_ltree[_length_code[len]+LITERALS+1].Freq++; \ + s->dyn_dtree[d_code(dist)].Freq++; \ + flush = (s->last_lit == s->lit_bufsize-1); \ + } +#else +# define _tr_tally_lit(s, c, flush) flush = _tr_tally(s, 0, c) +# define _tr_tally_dist(s, distance, length, flush) \ + flush = _tr_tally(s, distance, length) +#endif + +#endif /* DEFLATE_H */ diff --git a/zlib/example.c b/zlib/example.c new file mode 100644 index 0000000..604736f --- /dev/null +++ b/zlib/example.c @@ -0,0 +1,565 @@ +/* example.c -- usage example of the zlib compression library + * Copyright (C) 1995-2006 Jean-loup Gailly. + * For conditions of distribution and use, see copyright notice in zlib.h + */ + +/* @(#) $Id$ */ + +#include "zlib.h" +#include + +#ifdef STDC +# include +# include +#endif + +#if defined(VMS) || defined(RISCOS) +# define TESTFILE "foo-gz" +#else +# define TESTFILE "foo.gz" +#endif + +#define CHECK_ERR(err, msg) { \ + if (err != Z_OK) { \ + fprintf(stderr, "%s error: %d\n", msg, err); \ + exit(1); \ + } \ +} + +const char hello[] = "hello, hello!"; +/* "hello world" would be more standard, but the repeated "hello" + * stresses the compression code better, sorry... + */ + +const char dictionary[] = "hello"; +uLong dictId; /* Adler32 value of the dictionary */ + +void test_compress OF((Byte *compr, uLong comprLen, + Byte *uncompr, uLong uncomprLen)); +void test_gzio OF((const char *fname, + Byte *uncompr, uLong uncomprLen)); +void test_deflate OF((Byte *compr, uLong comprLen)); +void test_inflate OF((Byte *compr, uLong comprLen, + Byte *uncompr, uLong uncomprLen)); +void test_large_deflate OF((Byte *compr, uLong comprLen, + Byte *uncompr, uLong uncomprLen)); +void test_large_inflate OF((Byte *compr, uLong comprLen, + Byte *uncompr, uLong uncomprLen)); +void test_flush OF((Byte *compr, uLong *comprLen)); +void test_sync OF((Byte *compr, uLong comprLen, + Byte *uncompr, uLong uncomprLen)); +void test_dict_deflate OF((Byte *compr, uLong comprLen)); +void test_dict_inflate OF((Byte *compr, uLong comprLen, + Byte *uncompr, uLong uncomprLen)); +int main OF((int argc, char *argv[])); + +/* =========================================================================== + * Test compress() and uncompress() + */ +void test_compress(compr, comprLen, uncompr, uncomprLen) + Byte *compr, *uncompr; + uLong comprLen, uncomprLen; +{ + int err; + uLong len = (uLong)strlen(hello)+1; + + err = compress(compr, &comprLen, (const Bytef*)hello, len); + CHECK_ERR(err, "compress"); + + strcpy((char*)uncompr, "garbage"); + + err = uncompress(uncompr, &uncomprLen, compr, comprLen); + CHECK_ERR(err, "uncompress"); + + if (strcmp((char*)uncompr, hello)) { + fprintf(stderr, "bad uncompress\n"); + exit(1); + } else { + printf("uncompress(): %s\n", (char *)uncompr); + } +} + +/* =========================================================================== + * Test read/write of .gz files + */ +void test_gzio(fname, uncompr, uncomprLen) + const char *fname; /* compressed file name */ + Byte *uncompr; + uLong uncomprLen; +{ +#ifdef NO_GZCOMPRESS + fprintf(stderr, "NO_GZCOMPRESS -- gz* functions cannot compress\n"); +#else + int err; + int len = (int)strlen(hello)+1; + gzFile file; + z_off_t pos; + + file = gzopen(fname, "wb"); + if (file == NULL) { + fprintf(stderr, "gzopen error\n"); + exit(1); + } + gzputc(file, 'h'); + if (gzputs(file, "ello") != 4) { + fprintf(stderr, "gzputs err: %s\n", gzerror(file, &err)); + exit(1); + } + if (gzprintf(file, ", %s!", "hello") != 8) { + fprintf(stderr, "gzprintf err: %s\n", gzerror(file, &err)); + exit(1); + } + gzseek(file, 1L, SEEK_CUR); /* add one zero byte */ + gzclose(file); + + file = gzopen(fname, "rb"); + if (file == NULL) { + fprintf(stderr, "gzopen error\n"); + exit(1); + } + strcpy((char*)uncompr, "garbage"); + + if (gzread(file, uncompr, (unsigned)uncomprLen) != len) { + fprintf(stderr, "gzread err: %s\n", gzerror(file, &err)); + exit(1); + } + if (strcmp((char*)uncompr, hello)) { + fprintf(stderr, "bad gzread: %s\n", (char*)uncompr); + exit(1); + } else { + printf("gzread(): %s\n", (char*)uncompr); + } + + pos = gzseek(file, -8L, SEEK_CUR); + if (pos != 6 || gztell(file) != pos) { + fprintf(stderr, "gzseek error, pos=%ld, gztell=%ld\n", + (long)pos, (long)gztell(file)); + exit(1); + } + + if (gzgetc(file) != ' ') { + fprintf(stderr, "gzgetc error\n"); + exit(1); + } + + if (gzungetc(' ', file) != ' ') { + fprintf(stderr, "gzungetc error\n"); + exit(1); + } + + gzgets(file, (char*)uncompr, (int)uncomprLen); + if (strlen((char*)uncompr) != 7) { /* " hello!" */ + fprintf(stderr, "gzgets err after gzseek: %s\n", gzerror(file, &err)); + exit(1); + } + if (strcmp((char*)uncompr, hello + 6)) { + fprintf(stderr, "bad gzgets after gzseek\n"); + exit(1); + } else { + printf("gzgets() after gzseek: %s\n", (char*)uncompr); + } + + gzclose(file); +#endif +} + +/* =========================================================================== + * Test deflate() with small buffers + */ +void test_deflate(compr, comprLen) + Byte *compr; + uLong comprLen; +{ + z_stream c_stream; /* compression stream */ + int err; + uLong len = (uLong)strlen(hello)+1; + + c_stream.zalloc = (alloc_func)0; + c_stream.zfree = (free_func)0; + c_stream.opaque = (voidpf)0; + + err = deflateInit(&c_stream, Z_DEFAULT_COMPRESSION); + CHECK_ERR(err, "deflateInit"); + + c_stream.next_in = (Bytef*)hello; + c_stream.next_out = compr; + + while (c_stream.total_in != len && c_stream.total_out < comprLen) { + c_stream.avail_in = c_stream.avail_out = 1; /* force small buffers */ + err = deflate(&c_stream, Z_NO_FLUSH); + CHECK_ERR(err, "deflate"); + } + /* Finish the stream, still forcing small buffers: */ + for (;;) { + c_stream.avail_out = 1; + err = deflate(&c_stream, Z_FINISH); + if (err == Z_STREAM_END) break; + CHECK_ERR(err, "deflate"); + } + + err = deflateEnd(&c_stream); + CHECK_ERR(err, "deflateEnd"); +} + +/* =========================================================================== + * Test inflate() with small buffers + */ +void test_inflate(compr, comprLen, uncompr, uncomprLen) + Byte *compr, *uncompr; + uLong comprLen, uncomprLen; +{ + int err; + z_stream d_stream; /* decompression stream */ + + strcpy((char*)uncompr, "garbage"); + + d_stream.zalloc = (alloc_func)0; + d_stream.zfree = (free_func)0; + d_stream.opaque = (voidpf)0; + + d_stream.next_in = compr; + d_stream.avail_in = 0; + d_stream.next_out = uncompr; + + err = inflateInit(&d_stream); + CHECK_ERR(err, "inflateInit"); + + while (d_stream.total_out < uncomprLen && d_stream.total_in < comprLen) { + d_stream.avail_in = d_stream.avail_out = 1; /* force small buffers */ + err = inflate(&d_stream, Z_NO_FLUSH); + if (err == Z_STREAM_END) break; + CHECK_ERR(err, "inflate"); + } + + err = inflateEnd(&d_stream); + CHECK_ERR(err, "inflateEnd"); + + if (strcmp((char*)uncompr, hello)) { + fprintf(stderr, "bad inflate\n"); + exit(1); + } else { + printf("inflate(): %s\n", (char *)uncompr); + } +} + +/* =========================================================================== + * Test deflate() with large buffers and dynamic change of compression level + */ +void test_large_deflate(compr, comprLen, uncompr, uncomprLen) + Byte *compr, *uncompr; + uLong comprLen, uncomprLen; +{ + z_stream c_stream; /* compression stream */ + int err; + + c_stream.zalloc = (alloc_func)0; + c_stream.zfree = (free_func)0; + c_stream.opaque = (voidpf)0; + + err = deflateInit(&c_stream, Z_BEST_SPEED); + CHECK_ERR(err, "deflateInit"); + + c_stream.next_out = compr; + c_stream.avail_out = (uInt)comprLen; + + /* At this point, uncompr is still mostly zeroes, so it should compress + * very well: + */ + c_stream.next_in = uncompr; + c_stream.avail_in = (uInt)uncomprLen; + err = deflate(&c_stream, Z_NO_FLUSH); + CHECK_ERR(err, "deflate"); + if (c_stream.avail_in != 0) { + fprintf(stderr, "deflate not greedy\n"); + exit(1); + } + + /* Feed in already compressed data and switch to no compression: */ + deflateParams(&c_stream, Z_NO_COMPRESSION, Z_DEFAULT_STRATEGY); + c_stream.next_in = compr; + c_stream.avail_in = (uInt)comprLen/2; + err = deflate(&c_stream, Z_NO_FLUSH); + CHECK_ERR(err, "deflate"); + + /* Switch back to compressing mode: */ + deflateParams(&c_stream, Z_BEST_COMPRESSION, Z_FILTERED); + c_stream.next_in = uncompr; + c_stream.avail_in = (uInt)uncomprLen; + err = deflate(&c_stream, Z_NO_FLUSH); + CHECK_ERR(err, "deflate"); + + err = deflate(&c_stream, Z_FINISH); + if (err != Z_STREAM_END) { + fprintf(stderr, "deflate should report Z_STREAM_END\n"); + exit(1); + } + err = deflateEnd(&c_stream); + CHECK_ERR(err, "deflateEnd"); +} + +/* =========================================================================== + * Test inflate() with large buffers + */ +void test_large_inflate(compr, comprLen, uncompr, uncomprLen) + Byte *compr, *uncompr; + uLong comprLen, uncomprLen; +{ + int err; + z_stream d_stream; /* decompression stream */ + + strcpy((char*)uncompr, "garbage"); + + d_stream.zalloc = (alloc_func)0; + d_stream.zfree = (free_func)0; + d_stream.opaque = (voidpf)0; + + d_stream.next_in = compr; + d_stream.avail_in = (uInt)comprLen; + + err = inflateInit(&d_stream); + CHECK_ERR(err, "inflateInit"); + + for (;;) { + d_stream.next_out = uncompr; /* discard the output */ + d_stream.avail_out = (uInt)uncomprLen; + err = inflate(&d_stream, Z_NO_FLUSH); + if (err == Z_STREAM_END) break; + CHECK_ERR(err, "large inflate"); + } + + err = inflateEnd(&d_stream); + CHECK_ERR(err, "inflateEnd"); + + if (d_stream.total_out != 2*uncomprLen + comprLen/2) { + fprintf(stderr, "bad large inflate: %ld\n", d_stream.total_out); + exit(1); + } else { + printf("large_inflate(): OK\n"); + } +} + +/* =========================================================================== + * Test deflate() with full flush + */ +void test_flush(compr, comprLen) + Byte *compr; + uLong *comprLen; +{ + z_stream c_stream; /* compression stream */ + int err; + uInt len = (uInt)strlen(hello)+1; + + c_stream.zalloc = (alloc_func)0; + c_stream.zfree = (free_func)0; + c_stream.opaque = (voidpf)0; + + err = deflateInit(&c_stream, Z_DEFAULT_COMPRESSION); + CHECK_ERR(err, "deflateInit"); + + c_stream.next_in = (Bytef*)hello; + c_stream.next_out = compr; + c_stream.avail_in = 3; + c_stream.avail_out = (uInt)*comprLen; + err = deflate(&c_stream, Z_FULL_FLUSH); + CHECK_ERR(err, "deflate"); + + compr[3]++; /* force an error in first compressed block */ + c_stream.avail_in = len - 3; + + err = deflate(&c_stream, Z_FINISH); + if (err != Z_STREAM_END) { + CHECK_ERR(err, "deflate"); + } + err = deflateEnd(&c_stream); + CHECK_ERR(err, "deflateEnd"); + + *comprLen = c_stream.total_out; +} + +/* =========================================================================== + * Test inflateSync() + */ +void test_sync(compr, comprLen, uncompr, uncomprLen) + Byte *compr, *uncompr; + uLong comprLen, uncomprLen; +{ + int err; + z_stream d_stream; /* decompression stream */ + + strcpy((char*)uncompr, "garbage"); + + d_stream.zalloc = (alloc_func)0; + d_stream.zfree = (free_func)0; + d_stream.opaque = (voidpf)0; + + d_stream.next_in = compr; + d_stream.avail_in = 2; /* just read the zlib header */ + + err = inflateInit(&d_stream); + CHECK_ERR(err, "inflateInit"); + + d_stream.next_out = uncompr; + d_stream.avail_out = (uInt)uncomprLen; + + inflate(&d_stream, Z_NO_FLUSH); + CHECK_ERR(err, "inflate"); + + d_stream.avail_in = (uInt)comprLen-2; /* read all compressed data */ + err = inflateSync(&d_stream); /* but skip the damaged part */ + CHECK_ERR(err, "inflateSync"); + + err = inflate(&d_stream, Z_FINISH); + if (err != Z_DATA_ERROR) { + fprintf(stderr, "inflate should report DATA_ERROR\n"); + /* Because of incorrect adler32 */ + exit(1); + } + err = inflateEnd(&d_stream); + CHECK_ERR(err, "inflateEnd"); + + printf("after inflateSync(): hel%s\n", (char *)uncompr); +} + +/* =========================================================================== + * Test deflate() with preset dictionary + */ +void test_dict_deflate(compr, comprLen) + Byte *compr; + uLong comprLen; +{ + z_stream c_stream; /* compression stream */ + int err; + + c_stream.zalloc = (alloc_func)0; + c_stream.zfree = (free_func)0; + c_stream.opaque = (voidpf)0; + + err = deflateInit(&c_stream, Z_BEST_COMPRESSION); + CHECK_ERR(err, "deflateInit"); + + err = deflateSetDictionary(&c_stream, + (const Bytef*)dictionary, sizeof(dictionary)); + CHECK_ERR(err, "deflateSetDictionary"); + + dictId = c_stream.adler; + c_stream.next_out = compr; + c_stream.avail_out = (uInt)comprLen; + + c_stream.next_in = (Bytef*)hello; + c_stream.avail_in = (uInt)strlen(hello)+1; + + err = deflate(&c_stream, Z_FINISH); + if (err != Z_STREAM_END) { + fprintf(stderr, "deflate should report Z_STREAM_END\n"); + exit(1); + } + err = deflateEnd(&c_stream); + CHECK_ERR(err, "deflateEnd"); +} + +/* =========================================================================== + * Test inflate() with a preset dictionary + */ +void test_dict_inflate(compr, comprLen, uncompr, uncomprLen) + Byte *compr, *uncompr; + uLong comprLen, uncomprLen; +{ + int err; + z_stream d_stream; /* decompression stream */ + + strcpy((char*)uncompr, "garbage"); + + d_stream.zalloc = (alloc_func)0; + d_stream.zfree = (free_func)0; + d_stream.opaque = (voidpf)0; + + d_stream.next_in = compr; + d_stream.avail_in = (uInt)comprLen; + + err = inflateInit(&d_stream); + CHECK_ERR(err, "inflateInit"); + + d_stream.next_out = uncompr; + d_stream.avail_out = (uInt)uncomprLen; + + for (;;) { + err = inflate(&d_stream, Z_NO_FLUSH); + if (err == Z_STREAM_END) break; + if (err == Z_NEED_DICT) { + if (d_stream.adler != dictId) { + fprintf(stderr, "unexpected dictionary"); + exit(1); + } + err = inflateSetDictionary(&d_stream, (const Bytef*)dictionary, + sizeof(dictionary)); + } + CHECK_ERR(err, "inflate with dict"); + } + + err = inflateEnd(&d_stream); + CHECK_ERR(err, "inflateEnd"); + + if (strcmp((char*)uncompr, hello)) { + fprintf(stderr, "bad inflate with dict\n"); + exit(1); + } else { + printf("inflate with dictionary: %s\n", (char *)uncompr); + } +} + +/* =========================================================================== + * Usage: example [output.gz [input.gz]] + */ + +int main(argc, argv) + int argc; + char *argv[]; +{ + Byte *compr, *uncompr; + uLong comprLen = 10000*sizeof(int); /* don't overflow on MSDOS */ + uLong uncomprLen = comprLen; + static const char* myVersion = ZLIB_VERSION; + + if (zlibVersion()[0] != myVersion[0]) { + fprintf(stderr, "incompatible zlib version\n"); + exit(1); + + } else if (strcmp(zlibVersion(), ZLIB_VERSION) != 0) { + fprintf(stderr, "warning: different zlib version\n"); + } + + printf("zlib version %s = 0x%04x, compile flags = 0x%lx\n", + ZLIB_VERSION, ZLIB_VERNUM, zlibCompileFlags()); + + compr = (Byte*)calloc((uInt)comprLen, 1); + uncompr = (Byte*)calloc((uInt)uncomprLen, 1); + /* compr and uncompr are cleared to avoid reading uninitialized + * data and to ensure that uncompr compresses well. + */ + if (compr == Z_NULL || uncompr == Z_NULL) { + printf("out of memory\n"); + exit(1); + } + test_compress(compr, comprLen, uncompr, uncomprLen); + + test_gzio((argc > 1 ? argv[1] : TESTFILE), + uncompr, uncomprLen); + + test_deflate(compr, comprLen); + test_inflate(compr, comprLen, uncompr, uncomprLen); + + test_large_deflate(compr, comprLen, uncompr, uncomprLen); + test_large_inflate(compr, comprLen, uncompr, uncomprLen); + + test_flush(compr, &comprLen); + test_sync(compr, comprLen, uncompr, uncomprLen); + comprLen = uncomprLen; + + test_dict_deflate(compr, comprLen); + test_dict_inflate(compr, comprLen, uncompr, uncomprLen); + + free(compr); + free(uncompr); + + return 0; +} diff --git a/zlib/gzclose.c b/zlib/gzclose.c new file mode 100644 index 0000000..caeb99a --- /dev/null +++ b/zlib/gzclose.c @@ -0,0 +1,25 @@ +/* gzclose.c -- zlib gzclose() function + * Copyright (C) 2004, 2010 Mark Adler + * For conditions of distribution and use, see copyright notice in zlib.h + */ + +#include "gzguts.h" + +/* gzclose() is in a separate file so that it is linked in only if it is used. + That way the other gzclose functions can be used instead to avoid linking in + unneeded compression or decompression routines. */ +int ZEXPORT gzclose(file) + gzFile file; +{ +#ifndef NO_GZCOMPRESS + gz_statep state; + + if (file == NULL) + return Z_STREAM_ERROR; + state = (gz_statep)file; + + return state->mode == GZ_READ ? gzclose_r(file) : gzclose_w(file); +#else + return gzclose_r(file); +#endif +} diff --git a/zlib/gzguts.h b/zlib/gzguts.h new file mode 100644 index 0000000..b8a3590 --- /dev/null +++ b/zlib/gzguts.h @@ -0,0 +1,132 @@ +/* gzguts.h -- zlib internal header definitions for gz* operations + * Copyright (C) 2004, 2005, 2010 Mark Adler + * For conditions of distribution and use, see copyright notice in zlib.h + */ + +#ifdef _LARGEFILE64_SOURCE +# ifndef _LARGEFILE_SOURCE +# define _LARGEFILE_SOURCE 1 +# endif +# ifdef _FILE_OFFSET_BITS +# undef _FILE_OFFSET_BITS +# endif +#endif + +#if ((__GNUC__-0) * 10 + __GNUC_MINOR__-0 >= 33) && !defined(NO_VIZ) && !defined(__WIN32__) +# define ZLIB_INTERNAL __attribute__((visibility ("hidden"))) +#else +# define ZLIB_INTERNAL +#endif + +#include +#include "zlib.h" +#ifdef STDC +# include +# include +# include +#endif +#include + +#ifdef NO_DEFLATE /* for compatibility with old definition */ +# define NO_GZCOMPRESS +#endif + +#ifdef _MSC_VER +# include +# define vsnprintf _vsnprintf +#endif + +#ifndef local +# define local static +#endif +/* compile with -Dlocal if your debugger can't find static symbols */ + +/* gz* functions always use library allocation functions */ +#ifndef STDC + extern voidp malloc OF((uInt size)); + extern void free OF((voidpf ptr)); +#endif + +/* get errno and strerror definition */ +#if defined UNDER_CE +# include +# define zstrerror() gz_strwinerror((DWORD)GetLastError()) +#else +# ifdef STDC +# include +# define zstrerror() strerror(errno) +# else +# define zstrerror() "stdio error (consult errno)" +# endif +#endif + +/* provide prototypes for these when building zlib without LFS */ +#if !defined(_LARGEFILE64_SOURCE) || _LFS64_LARGEFILE-0 == 0 + ZEXTERN gzFile ZEXPORT gzopen64 OF((const char *, const char *)); + ZEXTERN z_off64_t ZEXPORT gzseek64 OF((gzFile, z_off64_t, int)); + ZEXTERN z_off64_t ZEXPORT gztell64 OF((gzFile)); + ZEXTERN z_off64_t ZEXPORT gzoffset64 OF((gzFile)); +#endif + +/* default i/o buffer size -- double this for output when reading */ +#define GZBUFSIZE 8192 + +/* gzip modes, also provide a little integrity check on the passed structure */ +#define GZ_NONE 0 +#define GZ_READ 7247 +#define GZ_WRITE 31153 +#define GZ_APPEND 1 /* mode set to GZ_WRITE after the file is opened */ + +/* values for gz_state how */ +#define LOOK 0 /* look for a gzip header */ +#define COPY 1 /* copy input directly */ +#define GZIP 2 /* decompress a gzip stream */ + +/* internal gzip file state data structure */ +typedef struct { + /* used for both reading and writing */ + int mode; /* see gzip modes above */ + int fd; /* file descriptor */ + char *path; /* path or fd for error messages */ + z_off64_t pos; /* current position in uncompressed data */ + unsigned size; /* buffer size, zero if not allocated yet */ + unsigned want; /* requested buffer size, default is GZBUFSIZE */ + unsigned char *in; /* input buffer */ + unsigned char *out; /* output buffer (double-sized when reading) */ + unsigned char *next; /* next output data to deliver or write */ + /* just for reading */ + unsigned have; /* amount of output data unused at next */ + int eof; /* true if end of input file reached */ + z_off64_t start; /* where the gzip data started, for rewinding */ + z_off64_t raw; /* where the raw data started, for seeking */ + int how; /* 0: get header, 1: copy, 2: decompress */ + int direct; /* true if last read direct, false if gzip */ + /* just for writing */ + int level; /* compression level */ + int strategy; /* compression strategy */ + /* seek request */ + z_off64_t skip; /* amount to skip (already rewound if backwards) */ + int seek; /* true if seek request pending */ + /* error information */ + int err; /* error code */ + char *msg; /* error message */ + /* zlib inflate or deflate stream */ + z_stream strm; /* stream structure in-place (not a pointer) */ +} gz_state; +typedef gz_state FAR *gz_statep; + +/* shared functions */ +void ZLIB_INTERNAL gz_error OF((gz_statep, int, const char *)); +#if defined UNDER_CE +char ZLIB_INTERNAL *gz_strwinerror OF((DWORD error)); +#endif + +/* GT_OFF(x), where x is an unsigned value, is true if x > maximum z_off64_t + value -- needed when comparing unsigned to z_off64_t, which is signed + (possible z_off64_t types off_t, off64_t, and long are all signed) */ +#ifdef INT_MAX +# define GT_OFF(x) (sizeof(int) == sizeof(z_off64_t) && (x) > INT_MAX) +#else +unsigned ZLIB_INTERNAL gz_intmax OF((void)); +# define GT_OFF(x) (sizeof(int) == sizeof(z_off64_t) && (x) > gz_intmax()) +#endif diff --git a/zlib/gzlib.c b/zlib/gzlib.c new file mode 100644 index 0000000..603e60e --- /dev/null +++ b/zlib/gzlib.c @@ -0,0 +1,537 @@ +/* gzlib.c -- zlib functions common to reading and writing gzip files + * Copyright (C) 2004, 2010 Mark Adler + * For conditions of distribution and use, see copyright notice in zlib.h + */ + +#include "gzguts.h" + +#if defined(_LARGEFILE64_SOURCE) && _LFS64_LARGEFILE-0 +# define LSEEK lseek64 +#else +# define LSEEK lseek +#endif + +/* Local functions */ +local void gz_reset OF((gz_statep)); +local gzFile gz_open OF((const char *, int, const char *)); + +#if defined UNDER_CE + +/* Map the Windows error number in ERROR to a locale-dependent error message + string and return a pointer to it. Typically, the values for ERROR come + from GetLastError. + + The string pointed to shall not be modified by the application, but may be + overwritten by a subsequent call to gz_strwinerror + + The gz_strwinerror function does not change the current setting of + GetLastError. */ +char ZLIB_INTERNAL *gz_strwinerror (error) + DWORD error; +{ + static char buf[1024]; + + wchar_t *msgbuf; + DWORD lasterr = GetLastError(); + DWORD chars = FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM + | FORMAT_MESSAGE_ALLOCATE_BUFFER, + NULL, + error, + 0, /* Default language */ + (LPVOID)&msgbuf, + 0, + NULL); + if (chars != 0) { + /* If there is an \r\n appended, zap it. */ + if (chars >= 2 + && msgbuf[chars - 2] == '\r' && msgbuf[chars - 1] == '\n') { + chars -= 2; + msgbuf[chars] = 0; + } + + if (chars > sizeof (buf) - 1) { + chars = sizeof (buf) - 1; + msgbuf[chars] = 0; + } + + wcstombs(buf, msgbuf, chars + 1); + LocalFree(msgbuf); + } + else { + sprintf(buf, "unknown win32 error (%ld)", error); + } + + SetLastError(lasterr); + return buf; +} + +#endif /* UNDER_CE */ + +/* Reset gzip file state */ +local void gz_reset(state) + gz_statep state; +{ + if (state->mode == GZ_READ) { /* for reading ... */ + state->have = 0; /* no output data available */ + state->eof = 0; /* not at end of file */ + state->how = LOOK; /* look for gzip header */ + state->direct = 1; /* default for empty file */ + } + state->seek = 0; /* no seek request pending */ + gz_error(state, Z_OK, NULL); /* clear error */ + state->pos = 0; /* no uncompressed data yet */ + state->strm.avail_in = 0; /* no input data yet */ +} + +/* Open a gzip file either by name or file descriptor. */ +local gzFile gz_open(path, fd, mode) + const char *path; + int fd; + const char *mode; +{ + gz_statep state; + + /* allocate gzFile structure to return */ + state = malloc(sizeof(gz_state)); + if (state == NULL) + return NULL; + state->size = 0; /* no buffers allocated yet */ + state->want = GZBUFSIZE; /* requested buffer size */ + state->msg = NULL; /* no error message yet */ + + /* interpret mode */ + state->mode = GZ_NONE; + state->level = Z_DEFAULT_COMPRESSION; + state->strategy = Z_DEFAULT_STRATEGY; + while (*mode) { + if (*mode >= '0' && *mode <= '9') + state->level = *mode - '0'; + else + switch (*mode) { + case 'r': + state->mode = GZ_READ; + break; +#ifndef NO_GZCOMPRESS + case 'w': + state->mode = GZ_WRITE; + break; + case 'a': + state->mode = GZ_APPEND; + break; +#endif + case '+': /* can't read and write at the same time */ + free(state); + return NULL; + case 'b': /* ignore -- will request binary anyway */ + break; + case 'f': + state->strategy = Z_FILTERED; + break; + case 'h': + state->strategy = Z_HUFFMAN_ONLY; + break; + case 'R': + state->strategy = Z_RLE; + break; + case 'F': + state->strategy = Z_FIXED; + default: /* could consider as an error, but just ignore */ + ; + } + mode++; + } + + /* must provide an "r", "w", or "a" */ + if (state->mode == GZ_NONE) { + free(state); + return NULL; + } + + /* save the path name for error messages */ + state->path = malloc(strlen(path) + 1); + if (state->path == NULL) { + free(state); + return NULL; + } + strcpy(state->path, path); + + /* open the file with the appropriate mode (or just use fd) */ + state->fd = fd != -1 ? fd : + open(path, +#ifdef O_LARGEFILE + O_LARGEFILE | +#endif +#ifdef O_BINARY + O_BINARY | +#endif + (state->mode == GZ_READ ? + O_RDONLY : + (O_WRONLY | O_CREAT | ( + state->mode == GZ_WRITE ? + O_TRUNC : + O_APPEND))), + 0666); + if (state->fd == -1) { + free(state->path); + free(state); + return NULL; + } + if (state->mode == GZ_APPEND) + state->mode = GZ_WRITE; /* simplify later checks */ + + /* save the current position for rewinding (only if reading) */ + if (state->mode == GZ_READ) { + state->start = LSEEK(state->fd, 0, SEEK_CUR); + if (state->start == -1) state->start = 0; + } + + /* initialize stream */ + gz_reset(state); + + /* return stream */ + return (gzFile)state; +} + +/* -- see zlib.h -- */ +gzFile ZEXPORT gzopen(path, mode) + const char *path; + const char *mode; +{ + return gz_open(path, -1, mode); +} + +/* -- see zlib.h -- */ +gzFile ZEXPORT gzopen64(path, mode) + const char *path; + const char *mode; +{ + return gz_open(path, -1, mode); +} + +/* -- see zlib.h -- */ +gzFile ZEXPORT gzdopen(fd, mode) + int fd; + const char *mode; +{ + char *path; /* identifier for error messages */ + gzFile gz; + + if (fd == -1 || (path = malloc(7 + 3 * sizeof(int))) == NULL) + return NULL; + sprintf(path, "", fd); /* for debugging */ + gz = gz_open(path, fd, mode); + free(path); + return gz; +} + +/* -- see zlib.h -- */ +int ZEXPORT gzbuffer(file, size) + gzFile file; + unsigned size; +{ + gz_statep state; + + /* get internal structure and check integrity */ + if (file == NULL) + return -1; + state = (gz_statep)file; + if (state->mode != GZ_READ && state->mode != GZ_WRITE) + return -1; + + /* make sure we haven't already allocated memory */ + if (state->size != 0) + return -1; + + /* check and set requested size */ + if (size == 0) + return -1; + state->want = size; + return 0; +} + +/* -- see zlib.h -- */ +int ZEXPORT gzrewind(file) + gzFile file; +{ + gz_statep state; + + /* get internal structure */ + if (file == NULL) + return -1; + state = (gz_statep)file; + + /* check that we're reading and that there's no error */ + if (state->mode != GZ_READ || state->err != Z_OK) + return -1; + + /* back up and start over */ + if (LSEEK(state->fd, state->start, SEEK_SET) == -1) + return -1; + gz_reset(state); + return 0; +} + +/* -- see zlib.h -- */ +z_off64_t ZEXPORT gzseek64(file, offset, whence) + gzFile file; + z_off64_t offset; + int whence; +{ + unsigned n; + z_off64_t ret; + gz_statep state; + + /* get internal structure and check integrity */ + if (file == NULL) + return -1; + state = (gz_statep)file; + if (state->mode != GZ_READ && state->mode != GZ_WRITE) + return -1; + + /* check that there's no error */ + if (state->err != Z_OK) + return -1; + + /* can only seek from start or relative to current position */ + if (whence != SEEK_SET && whence != SEEK_CUR) + return -1; + + /* normalize offset to a SEEK_CUR specification */ + if (whence == SEEK_SET) + offset -= state->pos; + else if (state->seek) + offset += state->skip; + state->seek = 0; + + /* if within raw area while reading, just go there */ + if (state->mode == GZ_READ && state->how == COPY && + state->pos + offset >= state->raw) { + ret = LSEEK(state->fd, offset - state->have, SEEK_CUR); + if (ret == -1) + return -1; + state->have = 0; + state->eof = 0; + state->seek = 0; + gz_error(state, Z_OK, NULL); + state->strm.avail_in = 0; + state->pos += offset; + return state->pos; + } + + /* calculate skip amount, rewinding if needed for back seek when reading */ + if (offset < 0) { + if (state->mode != GZ_READ) /* writing -- can't go backwards */ + return -1; + offset += state->pos; + if (offset < 0) /* before start of file! */ + return -1; + if (gzrewind(file) == -1) /* rewind, then skip to offset */ + return -1; + } + + /* if reading, skip what's in output buffer (one less gzgetc() check) */ + if (state->mode == GZ_READ) { + n = GT_OFF(state->have) || (z_off64_t)state->have > offset ? + (unsigned)offset : state->have; + state->have -= n; + state->next += n; + state->pos += n; + offset -= n; + } + + /* request skip (if not zero) */ + if (offset) { + state->seek = 1; + state->skip = offset; + } + return state->pos + offset; +} + +/* -- see zlib.h -- */ +z_off_t ZEXPORT gzseek(file, offset, whence) + gzFile file; + z_off_t offset; + int whence; +{ + z_off64_t ret; + + ret = gzseek64(file, (z_off64_t)offset, whence); + return ret == (z_off_t)ret ? (z_off_t)ret : -1; +} + +/* -- see zlib.h -- */ +z_off64_t ZEXPORT gztell64(file) + gzFile file; +{ + gz_statep state; + + /* get internal structure and check integrity */ + if (file == NULL) + return -1; + state = (gz_statep)file; + if (state->mode != GZ_READ && state->mode != GZ_WRITE) + return -1; + + /* return position */ + return state->pos + (state->seek ? state->skip : 0); +} + +/* -- see zlib.h -- */ +z_off_t ZEXPORT gztell(file) + gzFile file; +{ + z_off64_t ret; + + ret = gztell64(file); + return ret == (z_off_t)ret ? (z_off_t)ret : -1; +} + +/* -- see zlib.h -- */ +z_off64_t ZEXPORT gzoffset64(file) + gzFile file; +{ + z_off64_t offset; + gz_statep state; + + /* get internal structure and check integrity */ + if (file == NULL) + return -1; + state = (gz_statep)file; + if (state->mode != GZ_READ && state->mode != GZ_WRITE) + return -1; + + /* compute and return effective offset in file */ + offset = LSEEK(state->fd, 0, SEEK_CUR); + if (offset == -1) + return -1; + if (state->mode == GZ_READ) /* reading */ + offset -= state->strm.avail_in; /* don't count buffered input */ + return offset; +} + +/* -- see zlib.h -- */ +z_off_t ZEXPORT gzoffset(file) + gzFile file; +{ + z_off64_t ret; + + ret = gzoffset64(file); + return ret == (z_off_t)ret ? (z_off_t)ret : -1; +} + +/* -- see zlib.h -- */ +int ZEXPORT gzeof(file) + gzFile file; +{ + gz_statep state; + + /* get internal structure and check integrity */ + if (file == NULL) + return 0; + state = (gz_statep)file; + if (state->mode != GZ_READ && state->mode != GZ_WRITE) + return 0; + + /* return end-of-file state */ + return state->mode == GZ_READ ? + (state->eof && state->strm.avail_in == 0 && state->have == 0) : 0; +} + +/* -- see zlib.h -- */ +const char * ZEXPORT gzerror(file, errnum) + gzFile file; + int *errnum; +{ + gz_statep state; + + /* get internal structure and check integrity */ + if (file == NULL) + return NULL; + state = (gz_statep)file; + if (state->mode != GZ_READ && state->mode != GZ_WRITE) + return NULL; + + /* return error information */ + if (errnum != NULL) + *errnum = state->err; + return state->msg == NULL ? "" : state->msg; +} + +/* -- see zlib.h -- */ +void ZEXPORT gzclearerr(file) + gzFile file; +{ + gz_statep state; + + /* get internal structure and check integrity */ + if (file == NULL) + return; + state = (gz_statep)file; + if (state->mode != GZ_READ && state->mode != GZ_WRITE) + return; + + /* clear error and end-of-file */ + if (state->mode == GZ_READ) + state->eof = 0; + gz_error(state, Z_OK, NULL); +} + +/* Create an error message in allocated memory and set state->err and + state->msg accordingly. Free any previous error message already there. Do + not try to free or allocate space if the error is Z_MEM_ERROR (out of + memory). Simply save the error message as a static string. If there is an + allocation failure constructing the error message, then convert the error to + out of memory. */ +void ZLIB_INTERNAL gz_error(state, err, msg) + gz_statep state; + int err; + const char *msg; +{ + /* free previously allocated message and clear */ + if (state->msg != NULL) { + if (state->err != Z_MEM_ERROR) + free(state->msg); + state->msg = NULL; + } + + /* set error code, and if no message, then done */ + state->err = err; + if (msg == NULL) + return; + + /* for an out of memory error, save as static string */ + if (err == Z_MEM_ERROR) { + state->msg = (char *)msg; + return; + } + + /* construct error message with path */ + if ((state->msg = malloc(strlen(state->path) + strlen(msg) + 3)) == NULL) { + state->err = Z_MEM_ERROR; + state->msg = (char *)"out of memory"; + return; + } + strcpy(state->msg, state->path); + strcat(state->msg, ": "); + strcat(state->msg, msg); + return; +} + +#ifndef INT_MAX +/* portably return maximum value for an int (when limits.h presumed not + available) -- we need to do this to cover cases where 2's complement not + used, since C standard permits 1's complement and sign-bit representations, + otherwise we could just use ((unsigned)-1) >> 1 */ +unsigned ZLIB_INTERNAL gz_intmax() +{ + unsigned p, q; + + p = 1; + do { + q = p; + p <<= 1; + p++; + } while (p > q); + return q >> 1; +} +#endif diff --git a/zlib/gzread.c b/zlib/gzread.c new file mode 100644 index 0000000..548201a --- /dev/null +++ b/zlib/gzread.c @@ -0,0 +1,653 @@ +/* gzread.c -- zlib functions for reading gzip files + * Copyright (C) 2004, 2005, 2010 Mark Adler + * For conditions of distribution and use, see copyright notice in zlib.h + */ + +#include "gzguts.h" + +/* Local functions */ +local int gz_load OF((gz_statep, unsigned char *, unsigned, unsigned *)); +local int gz_avail OF((gz_statep)); +local int gz_next4 OF((gz_statep, unsigned long *)); +local int gz_head OF((gz_statep)); +local int gz_decomp OF((gz_statep)); +local int gz_make OF((gz_statep)); +local int gz_skip OF((gz_statep, z_off64_t)); + +/* Use read() to load a buffer -- return -1 on error, otherwise 0. Read from + state->fd, and update state->eof, state->err, and state->msg as appropriate. + This function needs to loop on read(), since read() is not guaranteed to + read the number of bytes requested, depending on the type of descriptor. */ +local int gz_load(state, buf, len, have) + gz_statep state; + unsigned char *buf; + unsigned len; + unsigned *have; +{ + int ret; + + *have = 0; + do { + ret = read(state->fd, buf + *have, len - *have); + if (ret <= 0) + break; + *have += ret; + } while (*have < len); + if (ret < 0) { + gz_error(state, Z_ERRNO, zstrerror()); + return -1; + } + if (ret == 0) + state->eof = 1; + return 0; +} + +/* Load up input buffer and set eof flag if last data loaded -- return -1 on + error, 0 otherwise. Note that the eof flag is set when the end of the input + file is reached, even though there may be unused data in the buffer. Once + that data has been used, no more attempts will be made to read the file. + gz_avail() assumes that strm->avail_in == 0. */ +local int gz_avail(state) + gz_statep state; +{ + z_streamp strm = &(state->strm); + + if (state->err != Z_OK) + return -1; + if (state->eof == 0) { + if (gz_load(state, state->in, state->size, + (unsigned *)&(strm->avail_in)) == -1) + return -1; + strm->next_in = state->in; + } + return 0; +} + +/* Get next byte from input, or -1 if end or error. */ +#define NEXT() ((strm->avail_in == 0 && gz_avail(state) == -1) ? -1 : \ + (strm->avail_in == 0 ? -1 : \ + (strm->avail_in--, *(strm->next_in)++))) + +/* Get a four-byte little-endian integer and return 0 on success and the value + in *ret. Otherwise -1 is returned and *ret is not modified. */ +local int gz_next4(state, ret) + gz_statep state; + unsigned long *ret; +{ + int ch; + unsigned long val; + z_streamp strm = &(state->strm); + + val = NEXT(); + val += (unsigned)NEXT() << 8; + val += (unsigned long)NEXT() << 16; + ch = NEXT(); + if (ch == -1) + return -1; + val += (unsigned long)ch << 24; + *ret = val; + return 0; +} + +/* Look for gzip header, set up for inflate or copy. state->have must be zero. + If this is the first time in, allocate required memory. state->how will be + left unchanged if there is no more input data available, will be set to COPY + if there is no gzip header and direct copying will be performed, or it will + be set to GZIP for decompression, and the gzip header will be skipped so + that the next available input data is the raw deflate stream. If direct + copying, then leftover input data from the input buffer will be copied to + the output buffer. In that case, all further file reads will be directly to + either the output buffer or a user buffer. If decompressing, the inflate + state and the check value will be initialized. gz_head() will return 0 on + success or -1 on failure. Failures may include read errors or gzip header + errors. */ +local int gz_head(state) + gz_statep state; +{ + z_streamp strm = &(state->strm); + int flags; + unsigned len; + + /* allocate read buffers and inflate memory */ + if (state->size == 0) { + /* allocate buffers */ + state->in = malloc(state->want); + state->out = malloc(state->want << 1); + if (state->in == NULL || state->out == NULL) { + if (state->out != NULL) + free(state->out); + if (state->in != NULL) + free(state->in); + gz_error(state, Z_MEM_ERROR, "out of memory"); + return -1; + } + state->size = state->want; + + /* allocate inflate memory */ + state->strm.zalloc = Z_NULL; + state->strm.zfree = Z_NULL; + state->strm.opaque = Z_NULL; + state->strm.avail_in = 0; + state->strm.next_in = Z_NULL; + if (inflateInit2(&(state->strm), -15) != Z_OK) { /* raw inflate */ + free(state->out); + free(state->in); + state->size = 0; + gz_error(state, Z_MEM_ERROR, "out of memory"); + return -1; + } + } + + /* get some data in the input buffer */ + if (strm->avail_in == 0) { + if (gz_avail(state) == -1) + return -1; + if (strm->avail_in == 0) + return 0; + } + + /* look for the gzip magic header bytes 31 and 139 */ + if (strm->next_in[0] == 31) { + strm->avail_in--; + strm->next_in++; + if (strm->avail_in == 0 && gz_avail(state) == -1) + return -1; + if (strm->avail_in && strm->next_in[0] == 139) { + /* we have a gzip header, woo hoo! */ + strm->avail_in--; + strm->next_in++; + + /* skip rest of header */ + if (NEXT() != 8) { /* compression method */ + gz_error(state, Z_DATA_ERROR, "unknown compression method"); + return -1; + } + flags = NEXT(); + if (flags & 0xe0) { /* reserved flag bits */ + gz_error(state, Z_DATA_ERROR, "unknown header flags set"); + return -1; + } + NEXT(); /* modification time */ + NEXT(); + NEXT(); + NEXT(); + NEXT(); /* extra flags */ + NEXT(); /* operating system */ + if (flags & 4) { /* extra field */ + len = (unsigned)NEXT(); + len += (unsigned)NEXT() << 8; + while (len--) + if (NEXT() < 0) + break; + } + if (flags & 8) /* file name */ + while (NEXT() > 0) + ; + if (flags & 16) /* comment */ + while (NEXT() > 0) + ; + if (flags & 2) { /* header crc */ + NEXT(); + NEXT(); + } + /* an unexpected end of file is not checked for here -- it will be + noticed on the first request for uncompressed data */ + + /* set up for decompression */ + inflateReset(strm); + strm->adler = crc32(0L, Z_NULL, 0); + state->how = GZIP; + state->direct = 0; + return 0; + } + else { + /* not a gzip file -- save first byte (31) and fall to raw i/o */ + state->out[0] = 31; + state->have = 1; + } + } + + /* doing raw i/o, save start of raw data for seeking, copy any leftover + input to output -- this assumes that the output buffer is larger than + the input buffer, which also assures space for gzungetc() */ + state->raw = state->pos; + state->next = state->out; + if (strm->avail_in) { + memcpy(state->next + state->have, strm->next_in, strm->avail_in); + state->have += strm->avail_in; + strm->avail_in = 0; + } + state->how = COPY; + state->direct = 1; + return 0; +} + +/* Decompress from input to the provided next_out and avail_out in the state. + If the end of the compressed data is reached, then verify the gzip trailer + check value and length (modulo 2^32). state->have and state->next are set + to point to the just decompressed data, and the crc is updated. If the + trailer is verified, state->how is reset to LOOK to look for the next gzip + stream or raw data, once state->have is depleted. Returns 0 on success, -1 + on failure. Failures may include invalid compressed data or a failed gzip + trailer verification. */ +local int gz_decomp(state) + gz_statep state; +{ + int ret; + unsigned had; + unsigned long crc, len; + z_streamp strm = &(state->strm); + + /* fill output buffer up to end of deflate stream */ + had = strm->avail_out; + do { + /* get more input for inflate() */ + if (strm->avail_in == 0 && gz_avail(state) == -1) + return -1; + if (strm->avail_in == 0) { + gz_error(state, Z_DATA_ERROR, "unexpected end of file"); + return -1; + } + + /* decompress and handle errors */ + ret = inflate(strm, Z_NO_FLUSH); + if (ret == Z_STREAM_ERROR || ret == Z_NEED_DICT) { + gz_error(state, Z_STREAM_ERROR, + "internal error: inflate stream corrupt"); + return -1; + } + if (ret == Z_MEM_ERROR) { + gz_error(state, Z_MEM_ERROR, "out of memory"); + return -1; + } + if (ret == Z_DATA_ERROR) { /* deflate stream invalid */ + gz_error(state, Z_DATA_ERROR, + strm->msg == NULL ? "compressed data error" : strm->msg); + return -1; + } + } while (strm->avail_out && ret != Z_STREAM_END); + + /* update available output and crc check value */ + state->have = had - strm->avail_out; + state->next = strm->next_out - state->have; + strm->adler = crc32(strm->adler, state->next, state->have); + + /* check gzip trailer if at end of deflate stream */ + if (ret == Z_STREAM_END) { + if (gz_next4(state, &crc) == -1 || gz_next4(state, &len) == -1) { + gz_error(state, Z_DATA_ERROR, "unexpected end of file"); + return -1; + } + if (crc != strm->adler) { + gz_error(state, Z_DATA_ERROR, "incorrect data check"); + return -1; + } + if (len != (strm->total_out & 0xffffffffL)) { + gz_error(state, Z_DATA_ERROR, "incorrect length check"); + return -1; + } + state->how = LOOK; /* ready for next stream, once have is 0 (leave + state->direct unchanged to remember how) */ + } + + /* good decompression */ + return 0; +} + +/* Make data and put in the output buffer. Assumes that state->have == 0. + Data is either copied from the input file or decompressed from the input + file depending on state->how. If state->how is LOOK, then a gzip header is + looked for (and skipped if found) to determine wither to copy or decompress. + Returns -1 on error, otherwise 0. gz_make() will leave state->have as COPY + or GZIP unless the end of the input file has been reached and all data has + been processed. */ +local int gz_make(state) + gz_statep state; +{ + z_streamp strm = &(state->strm); + + if (state->how == LOOK) { /* look for gzip header */ + if (gz_head(state) == -1) + return -1; + if (state->have) /* got some data from gz_head() */ + return 0; + } + if (state->how == COPY) { /* straight copy */ + if (gz_load(state, state->out, state->size << 1, &(state->have)) == -1) + return -1; + state->next = state->out; + } + else if (state->how == GZIP) { /* decompress */ + strm->avail_out = state->size << 1; + strm->next_out = state->out; + if (gz_decomp(state) == -1) + return -1; + } + return 0; +} + +/* Skip len uncompressed bytes of output. Return -1 on error, 0 on success. */ +local int gz_skip(state, len) + gz_statep state; + z_off64_t len; +{ + unsigned n; + + /* skip over len bytes or reach end-of-file, whichever comes first */ + while (len) + /* skip over whatever is in output buffer */ + if (state->have) { + n = GT_OFF(state->have) || (z_off64_t)state->have > len ? + (unsigned)len : state->have; + state->have -= n; + state->next += n; + state->pos += n; + len -= n; + } + + /* output buffer empty -- return if we're at the end of the input */ + else if (state->eof && state->strm.avail_in == 0) + break; + + /* need more data to skip -- load up output buffer */ + else { + /* get more output, looking for header if required */ + if (gz_make(state) == -1) + return -1; + } + return 0; +} + +/* -- see zlib.h -- */ +int ZEXPORT gzread(file, buf, len) + gzFile file; + voidp buf; + unsigned len; +{ + unsigned got, n; + gz_statep state; + z_streamp strm; + + /* get internal structure */ + if (file == NULL) + return -1; + state = (gz_statep)file; + strm = &(state->strm); + + /* check that we're reading and that there's no error */ + if (state->mode != GZ_READ || state->err != Z_OK) + return -1; + + /* since an int is returned, make sure len fits in one, otherwise return + with an error (this avoids the flaw in the interface) */ + if ((int)len < 0) { + gz_error(state, Z_BUF_ERROR, "requested length does not fit in int"); + return -1; + } + + /* if len is zero, avoid unnecessary operations */ + if (len == 0) + return 0; + + /* process a skip request */ + if (state->seek) { + state->seek = 0; + if (gz_skip(state, state->skip) == -1) + return -1; + } + + /* get len bytes to buf, or less than len if at the end */ + got = 0; + do { + /* first just try copying data from the output buffer */ + if (state->have) { + n = state->have > len ? len : state->have; + memcpy(buf, state->next, n); + state->next += n; + state->have -= n; + } + + /* output buffer empty -- return if we're at the end of the input */ + else if (state->eof && strm->avail_in == 0) + break; + + /* need output data -- for small len or new stream load up our output + buffer */ + else if (state->how == LOOK || len < (state->size << 1)) { + /* get more output, looking for header if required */ + if (gz_make(state) == -1) + return -1; + continue; /* no progress yet -- go back to memcpy() above */ + /* the copy above assures that we will leave with space in the + output buffer, allowing at least one gzungetc() to succeed */ + } + + /* large len -- read directly into user buffer */ + else if (state->how == COPY) { /* read directly */ + if (gz_load(state, buf, len, &n) == -1) + return -1; + } + + /* large len -- decompress directly into user buffer */ + else { /* state->how == GZIP */ + strm->avail_out = len; + strm->next_out = buf; + if (gz_decomp(state) == -1) + return -1; + n = state->have; + state->have = 0; + } + + /* update progress */ + len -= n; + buf = (char *)buf + n; + got += n; + state->pos += n; + } while (len); + + /* return number of bytes read into user buffer (will fit in int) */ + return (int)got; +} + +/* -- see zlib.h -- */ +int ZEXPORT gzgetc(file) + gzFile file; +{ + int ret; + unsigned char buf[1]; + gz_statep state; + + /* get internal structure */ + if (file == NULL) + return -1; + state = (gz_statep)file; + + /* check that we're reading and that there's no error */ + if (state->mode != GZ_READ || state->err != Z_OK) + return -1; + + /* try output buffer (no need to check for skip request) */ + if (state->have) { + state->have--; + state->pos++; + return *(state->next)++; + } + + /* nothing there -- try gzread() */ + ret = gzread(file, buf, 1); + return ret < 1 ? -1 : buf[0]; +} + +/* -- see zlib.h -- */ +int ZEXPORT gzungetc(c, file) + int c; + gzFile file; +{ + gz_statep state; + + /* get internal structure */ + if (file == NULL) + return -1; + state = (gz_statep)file; + + /* check that we're reading and that there's no error */ + if (state->mode != GZ_READ || state->err != Z_OK) + return -1; + + /* process a skip request */ + if (state->seek) { + state->seek = 0; + if (gz_skip(state, state->skip) == -1) + return -1; + } + + /* can't push EOF */ + if (c < 0) + return -1; + + /* if output buffer empty, put byte at end (allows more pushing) */ + if (state->have == 0) { + state->have = 1; + state->next = state->out + (state->size << 1) - 1; + state->next[0] = c; + state->pos--; + return c; + } + + /* if no room, give up (must have already done a gzungetc()) */ + if (state->have == (state->size << 1)) { + gz_error(state, Z_BUF_ERROR, "out of room to push characters"); + return -1; + } + + /* slide output data if needed and insert byte before existing data */ + if (state->next == state->out) { + unsigned char *src = state->out + state->have; + unsigned char *dest = state->out + (state->size << 1); + while (src > state->out) + *--dest = *--src; + state->next = dest; + } + state->have++; + state->next--; + state->next[0] = c; + state->pos--; + return c; +} + +/* -- see zlib.h -- */ +char * ZEXPORT gzgets(file, buf, len) + gzFile file; + char *buf; + int len; +{ + unsigned left, n; + char *str; + unsigned char *eol; + gz_statep state; + + /* check parameters and get internal structure */ + if (file == NULL || buf == NULL || len < 1) + return NULL; + state = (gz_statep)file; + + /* check that we're reading and that there's no error */ + if (state->mode != GZ_READ || state->err != Z_OK) + return NULL; + + /* process a skip request */ + if (state->seek) { + state->seek = 0; + if (gz_skip(state, state->skip) == -1) + return NULL; + } + + /* copy output bytes up to new line or len - 1, whichever comes first -- + append a terminating zero to the string (we don't check for a zero in + the contents, let the user worry about that) */ + str = buf; + left = (unsigned)len - 1; + if (left) do { + /* assure that something is in the output buffer */ + if (state->have == 0) { + if (gz_make(state) == -1) + return NULL; /* error */ + if (state->have == 0) { /* end of file */ + if (buf == str) /* got bupkus */ + return NULL; + break; /* got something -- return it */ + } + } + + /* look for end-of-line in current output buffer */ + n = state->have > left ? left : state->have; + eol = memchr(state->next, '\n', n); + if (eol != NULL) + n = (unsigned)(eol - state->next) + 1; + + /* copy through end-of-line, or remainder if not found */ + memcpy(buf, state->next, n); + state->have -= n; + state->next += n; + state->pos += n; + left -= n; + buf += n; + } while (left && eol == NULL); + + /* found end-of-line or out of space -- terminate string and return it */ + buf[0] = 0; + return str; +} + +/* -- see zlib.h -- */ +int ZEXPORT gzdirect(file) + gzFile file; +{ + gz_statep state; + + /* get internal structure */ + if (file == NULL) + return 0; + state = (gz_statep)file; + + /* check that we're reading */ + if (state->mode != GZ_READ) + return 0; + + /* if the state is not known, but we can find out, then do so (this is + mainly for right after a gzopen() or gzdopen()) */ + if (state->how == LOOK && state->have == 0) + (void)gz_head(state); + + /* return 1 if reading direct, 0 if decompressing a gzip stream */ + return state->direct; +} + +/* -- see zlib.h -- */ +int ZEXPORT gzclose_r(file) + gzFile file; +{ + int ret; + gz_statep state; + + /* get internal structure */ + if (file == NULL) + return Z_STREAM_ERROR; + state = (gz_statep)file; + + /* check that we're reading */ + if (state->mode != GZ_READ) + return Z_STREAM_ERROR; + + /* free memory and close file */ + if (state->size) { + inflateEnd(&(state->strm)); + free(state->out); + free(state->in); + } + gz_error(state, Z_OK, NULL); + free(state->path); + ret = close(state->fd); + free(state); + return ret ? Z_ERRNO : Z_OK; +} diff --git a/zlib/gzwrite.c b/zlib/gzwrite.c new file mode 100644 index 0000000..e8defc6 --- /dev/null +++ b/zlib/gzwrite.c @@ -0,0 +1,531 @@ +/* gzwrite.c -- zlib functions for writing gzip files + * Copyright (C) 2004, 2005, 2010 Mark Adler + * For conditions of distribution and use, see copyright notice in zlib.h + */ + +#include "gzguts.h" + +/* Local functions */ +local int gz_init OF((gz_statep)); +local int gz_comp OF((gz_statep, int)); +local int gz_zero OF((gz_statep, z_off64_t)); + +/* Initialize state for writing a gzip file. Mark initialization by setting + state->size to non-zero. Return -1 on failure or 0 on success. */ +local int gz_init(state) + gz_statep state; +{ + int ret; + z_streamp strm = &(state->strm); + + /* allocate input and output buffers */ + state->in = malloc(state->want); + state->out = malloc(state->want); + if (state->in == NULL || state->out == NULL) { + if (state->out != NULL) + free(state->out); + if (state->in != NULL) + free(state->in); + gz_error(state, Z_MEM_ERROR, "out of memory"); + return -1; + } + + /* allocate deflate memory, set up for gzip compression */ + strm->zalloc = Z_NULL; + strm->zfree = Z_NULL; + strm->opaque = Z_NULL; + ret = deflateInit2(strm, state->level, Z_DEFLATED, + 15 + 16, 8, state->strategy); + if (ret != Z_OK) { + free(state->in); + gz_error(state, Z_MEM_ERROR, "out of memory"); + return -1; + } + + /* mark state as initialized */ + state->size = state->want; + + /* initialize write buffer */ + strm->avail_out = state->size; + strm->next_out = state->out; + state->next = strm->next_out; + return 0; +} + +/* Compress whatever is at avail_in and next_in and write to the output file. + Return -1 if there is an error writing to the output file, otherwise 0. + flush is assumed to be a valid deflate() flush value. If flush is Z_FINISH, + then the deflate() state is reset to start a new gzip stream. */ +local int gz_comp(state, flush) + gz_statep state; + int flush; +{ + int ret, got; + unsigned have; + z_streamp strm = &(state->strm); + + /* allocate memory if this is the first time through */ + if (state->size == 0 && gz_init(state) == -1) + return -1; + + /* run deflate() on provided input until it produces no more output */ + ret = Z_OK; + do { + /* write out current buffer contents if full, or if flushing, but if + doing Z_FINISH then don't write until we get to Z_STREAM_END */ + if (strm->avail_out == 0 || (flush != Z_NO_FLUSH && + (flush != Z_FINISH || ret == Z_STREAM_END))) { + have = (unsigned)(strm->next_out - state->next); + if (have && ((got = write(state->fd, state->next, have)) < 0 || + (unsigned)got != have)) { + gz_error(state, Z_ERRNO, zstrerror()); + return -1; + } + if (strm->avail_out == 0) { + strm->avail_out = state->size; + strm->next_out = state->out; + } + state->next = strm->next_out; + } + + /* compress */ + have = strm->avail_out; + ret = deflate(strm, flush); + if (ret == Z_STREAM_ERROR) { + gz_error(state, Z_STREAM_ERROR, + "internal error: deflate stream corrupt"); + return -1; + } + have -= strm->avail_out; + } while (have); + + /* if that completed a deflate stream, allow another to start */ + if (flush == Z_FINISH) + deflateReset(strm); + + /* all done, no errors */ + return 0; +} + +/* Compress len zeros to output. Return -1 on error, 0 on success. */ +local int gz_zero(state, len) + gz_statep state; + z_off64_t len; +{ + int first; + unsigned n; + z_streamp strm = &(state->strm); + + /* consume whatever's left in the input buffer */ + if (strm->avail_in && gz_comp(state, Z_NO_FLUSH) == -1) + return -1; + + /* compress len zeros (len guaranteed > 0) */ + first = 1; + while (len) { + n = GT_OFF(state->size) || (z_off64_t)state->size > len ? + (unsigned)len : state->size; + if (first) { + memset(state->in, 0, n); + first = 0; + } + strm->avail_in = n; + strm->next_in = state->in; + state->pos += n; + if (gz_comp(state, Z_NO_FLUSH) == -1) + return -1; + len -= n; + } + return 0; +} + +/* -- see zlib.h -- */ +int ZEXPORT gzwrite(file, buf, len) + gzFile file; + voidpc buf; + unsigned len; +{ + unsigned put = len; + unsigned n; + gz_statep state; + z_streamp strm; + + /* get internal structure */ + if (file == NULL) + return 0; + state = (gz_statep)file; + strm = &(state->strm); + + /* check that we're writing and that there's no error */ + if (state->mode != GZ_WRITE || state->err != Z_OK) + return 0; + + /* since an int is returned, make sure len fits in one, otherwise return + with an error (this avoids the flaw in the interface) */ + if ((int)len < 0) { + gz_error(state, Z_BUF_ERROR, "requested length does not fit in int"); + return 0; + } + + /* if len is zero, avoid unnecessary operations */ + if (len == 0) + return 0; + + /* allocate memory if this is the first time through */ + if (state->size == 0 && gz_init(state) == -1) + return 0; + + /* check for seek request */ + if (state->seek) { + state->seek = 0; + if (gz_zero(state, state->skip) == -1) + return 0; + } + + /* for small len, copy to input buffer, otherwise compress directly */ + if (len < state->size) { + /* copy to input buffer, compress when full */ + do { + if (strm->avail_in == 0) + strm->next_in = state->in; + n = state->size - strm->avail_in; + if (n > len) + n = len; + memcpy(strm->next_in + strm->avail_in, buf, n); + strm->avail_in += n; + state->pos += n; + buf = (char *)buf + n; + len -= n; + if (len && gz_comp(state, Z_NO_FLUSH) == -1) + return 0; + } while (len); + } + else { + /* consume whatever's left in the input buffer */ + if (strm->avail_in && gz_comp(state, Z_NO_FLUSH) == -1) + return 0; + + /* directly compress user buffer to file */ + strm->avail_in = len; + strm->next_in = (voidp)buf; + state->pos += len; + if (gz_comp(state, Z_NO_FLUSH) == -1) + return 0; + } + + /* input was all buffered or compressed (put will fit in int) */ + return (int)put; +} + +/* -- see zlib.h -- */ +int ZEXPORT gzputc(file, c) + gzFile file; + int c; +{ + unsigned char buf[1]; + gz_statep state; + z_streamp strm; + + /* get internal structure */ + if (file == NULL) + return -1; + state = (gz_statep)file; + strm = &(state->strm); + + /* check that we're writing and that there's no error */ + if (state->mode != GZ_WRITE || state->err != Z_OK) + return -1; + + /* check for seek request */ + if (state->seek) { + state->seek = 0; + if (gz_zero(state, state->skip) == -1) + return -1; + } + + /* try writing to input buffer for speed (state->size == 0 if buffer not + initialized) */ + if (strm->avail_in < state->size) { + if (strm->avail_in == 0) + strm->next_in = state->in; + strm->next_in[strm->avail_in++] = c; + state->pos++; + return c; + } + + /* no room in buffer or not initialized, use gz_write() */ + buf[0] = c; + if (gzwrite(file, buf, 1) != 1) + return -1; + return c; +} + +/* -- see zlib.h -- */ +int ZEXPORT gzputs(file, str) + gzFile file; + const char *str; +{ + int ret; + unsigned len; + + /* write string */ + len = (unsigned)strlen(str); + ret = gzwrite(file, str, len); + return ret == 0 && len != 0 ? -1 : ret; +} + +#ifdef STDC +#include + +/* -- see zlib.h -- */ +int ZEXPORTVA gzprintf (gzFile file, const char *format, ...) +{ + int size, len; + gz_statep state; + z_streamp strm; + va_list va; + + /* get internal structure */ + if (file == NULL) + return -1; + state = (gz_statep)file; + strm = &(state->strm); + + /* check that we're writing and that there's no error */ + if (state->mode != GZ_WRITE || state->err != Z_OK) + return 0; + + /* make sure we have some buffer space */ + if (state->size == 0 && gz_init(state) == -1) + return 0; + + /* check for seek request */ + if (state->seek) { + state->seek = 0; + if (gz_zero(state, state->skip) == -1) + return 0; + } + + /* consume whatever's left in the input buffer */ + if (strm->avail_in && gz_comp(state, Z_NO_FLUSH) == -1) + return 0; + + /* do the printf() into the input buffer, put length in len */ + size = (int)(state->size); + state->in[size - 1] = 0; + va_start(va, format); +#ifdef NO_vsnprintf +# ifdef HAS_vsprintf_void + (void)vsprintf(state->in, format, va); + va_end(va); + for (len = 0; len < size; len++) + if (state->in[len] == 0) break; +# else + len = vsprintf(state->in, format, va); + va_end(va); +# endif +#else +# ifdef HAS_vsnprintf_void + (void)vsnprintf(state->in, size, format, va); + va_end(va); + len = strlen(state->in); +# else + len = vsnprintf((char *)(state->in), size, format, va); + va_end(va); +# endif +#endif + + /* check that printf() results fit in buffer */ + if (len <= 0 || len >= (int)size || state->in[size - 1] != 0) + return 0; + + /* update buffer and position, defer compression until needed */ + strm->avail_in = (unsigned)len; + strm->next_in = state->in; + state->pos += len; + return len; +} + +#else /* !STDC */ + +/* -- see zlib.h -- */ +int ZEXPORTVA gzprintf (file, format, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, + a11, a12, a13, a14, a15, a16, a17, a18, a19, a20) + gzFile file; + const char *format; + int a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, + a11, a12, a13, a14, a15, a16, a17, a18, a19, a20; +{ + int size, len; + gz_statep state; + z_streamp strm; + + /* get internal structure */ + if (file == NULL) + return -1; + state = (gz_statep)file; + strm = &(state->strm); + + /* check that we're writing and that there's no error */ + if (state->mode != GZ_WRITE || state->err != Z_OK) + return 0; + + /* make sure we have some buffer space */ + if (state->size == 0 && gz_init(state) == -1) + return 0; + + /* check for seek request */ + if (state->seek) { + state->seek = 0; + if (gz_zero(state, state->skip) == -1) + return 0; + } + + /* consume whatever's left in the input buffer */ + if (strm->avail_in && gz_comp(state, Z_NO_FLUSH) == -1) + return 0; + + /* do the printf() into the input buffer, put length in len */ + size = (int)(state->size); + state->in[size - 1] = 0; +#ifdef NO_snprintf +# ifdef HAS_sprintf_void + sprintf(state->in, format, a1, a2, a3, a4, a5, a6, a7, a8, + a9, a10, a11, a12, a13, a14, a15, a16, a17, a18, a19, a20); + for (len = 0; len < size; len++) + if (state->in[len] == 0) break; +# else + len = sprintf(state->in, format, a1, a2, a3, a4, a5, a6, a7, a8, + a9, a10, a11, a12, a13, a14, a15, a16, a17, a18, a19, a20); +# endif +#else +# ifdef HAS_snprintf_void + snprintf(state->in, size, format, a1, a2, a3, a4, a5, a6, a7, a8, + a9, a10, a11, a12, a13, a14, a15, a16, a17, a18, a19, a20); + len = strlen(state->in); +# else + len = snprintf(state->in, size, format, a1, a2, a3, a4, a5, a6, a7, a8, + a9, a10, a11, a12, a13, a14, a15, a16, a17, a18, a19, a20); +# endif +#endif + + /* check that printf() results fit in buffer */ + if (len <= 0 || len >= (int)size || state->in[size - 1] != 0) + return 0; + + /* update buffer and position, defer compression until needed */ + strm->avail_in = (unsigned)len; + strm->next_in = state->in; + state->pos += len; + return len; +} + +#endif + +/* -- see zlib.h -- */ +int ZEXPORT gzflush(file, flush) + gzFile file; + int flush; +{ + gz_statep state; + + /* get internal structure */ + if (file == NULL) + return -1; + state = (gz_statep)file; + + /* check that we're writing and that there's no error */ + if (state->mode != GZ_WRITE || state->err != Z_OK) + return Z_STREAM_ERROR; + + /* check flush parameter */ + if (flush < 0 || flush > Z_FINISH) + return Z_STREAM_ERROR; + + /* check for seek request */ + if (state->seek) { + state->seek = 0; + if (gz_zero(state, state->skip) == -1) + return -1; + } + + /* compress remaining data with requested flush */ + gz_comp(state, flush); + return state->err; +} + +/* -- see zlib.h -- */ +int ZEXPORT gzsetparams(file, level, strategy) + gzFile file; + int level; + int strategy; +{ + gz_statep state; + z_streamp strm; + + /* get internal structure */ + if (file == NULL) + return Z_STREAM_ERROR; + state = (gz_statep)file; + strm = &(state->strm); + + /* check that we're writing and that there's no error */ + if (state->mode != GZ_WRITE || state->err != Z_OK) + return Z_STREAM_ERROR; + + /* if no change is requested, then do nothing */ + if (level == state->level && strategy == state->strategy) + return Z_OK; + + /* check for seek request */ + if (state->seek) { + state->seek = 0; + if (gz_zero(state, state->skip) == -1) + return -1; + } + + /* change compression parameters for subsequent input */ + if (state->size) { + /* flush previous input with previous parameters before changing */ + if (strm->avail_in && gz_comp(state, Z_PARTIAL_FLUSH) == -1) + return state->err; + deflateParams(strm, level, strategy); + } + state->level = level; + state->strategy = strategy; + return Z_OK; +} + +/* -- see zlib.h -- */ +int ZEXPORT gzclose_w(file) + gzFile file; +{ + int ret = 0; + gz_statep state; + + /* get internal structure */ + if (file == NULL) + return Z_STREAM_ERROR; + state = (gz_statep)file; + + /* check that we're writing */ + if (state->mode != GZ_WRITE) + return Z_STREAM_ERROR; + + /* check for seek request */ + if (state->seek) { + state->seek = 0; + ret += gz_zero(state, state->skip); + } + + /* flush, free memory, and close file */ + ret += gz_comp(state, Z_FINISH); + (void)deflateEnd(&(state->strm)); + free(state->out); + free(state->in); + gz_error(state, Z_OK, NULL); + free(state->path); + ret += close(state->fd); + free(state); + return ret ? Z_ERRNO : Z_OK; +} diff --git a/zlib/infback.c b/zlib/infback.c new file mode 100644 index 0000000..af3a8c9 --- /dev/null +++ b/zlib/infback.c @@ -0,0 +1,632 @@ +/* infback.c -- inflate using a call-back interface + * Copyright (C) 1995-2009 Mark Adler + * For conditions of distribution and use, see copyright notice in zlib.h + */ + +/* + This code is largely copied from inflate.c. Normally either infback.o or + inflate.o would be linked into an application--not both. The interface + with inffast.c is retained so that optimized assembler-coded versions of + inflate_fast() can be used with either inflate.c or infback.c. + */ + +#include "zutil.h" +#include "inftrees.h" +#include "inflate.h" +#include "inffast.h" + +/* function prototypes */ +local void fixedtables OF((struct inflate_state FAR *state)); + +/* + strm provides memory allocation functions in zalloc and zfree, or + Z_NULL to use the library memory allocation functions. + + windowBits is in the range 8..15, and window is a user-supplied + window and output buffer that is 2**windowBits bytes. + */ +int ZEXPORT inflateBackInit_(strm, windowBits, window, version, stream_size) +z_streamp strm; +int windowBits; +unsigned char FAR *window; +const char *version; +int stream_size; +{ + struct inflate_state FAR *state; + + if (version == Z_NULL || version[0] != ZLIB_VERSION[0] || + stream_size != (int)(sizeof(z_stream))) + return Z_VERSION_ERROR; + if (strm == Z_NULL || window == Z_NULL || + windowBits < 8 || windowBits > 15) + return Z_STREAM_ERROR; + strm->msg = Z_NULL; /* in case we return an error */ + if (strm->zalloc == (alloc_func)0) { + strm->zalloc = zcalloc; + strm->opaque = (voidpf)0; + } + if (strm->zfree == (free_func)0) strm->zfree = zcfree; + state = (struct inflate_state FAR *)ZALLOC(strm, 1, + sizeof(struct inflate_state)); + if (state == Z_NULL) return Z_MEM_ERROR; + Tracev((stderr, "inflate: allocated\n")); + strm->state = (struct internal_state FAR *)state; + state->dmax = 32768U; + state->wbits = windowBits; + state->wsize = 1U << windowBits; + state->window = window; + state->wnext = 0; + state->whave = 0; + return Z_OK; +} + +/* + Return state with length and distance decoding tables and index sizes set to + fixed code decoding. Normally this returns fixed tables from inffixed.h. + If BUILDFIXED is defined, then instead this routine builds the tables the + first time it's called, and returns those tables the first time and + thereafter. This reduces the size of the code by about 2K bytes, in + exchange for a little execution time. However, BUILDFIXED should not be + used for threaded applications, since the rewriting of the tables and virgin + may not be thread-safe. + */ +local void fixedtables(state) +struct inflate_state FAR *state; +{ +#ifdef BUILDFIXED + static int virgin = 1; + static code *lenfix, *distfix; + static code fixed[544]; + + /* build fixed huffman tables if first call (may not be thread safe) */ + if (virgin) { + unsigned sym, bits; + static code *next; + + /* literal/length table */ + sym = 0; + while (sym < 144) state->lens[sym++] = 8; + while (sym < 256) state->lens[sym++] = 9; + while (sym < 280) state->lens[sym++] = 7; + while (sym < 288) state->lens[sym++] = 8; + next = fixed; + lenfix = next; + bits = 9; + inflate_table(LENS, state->lens, 288, &(next), &(bits), state->work); + + /* distance table */ + sym = 0; + while (sym < 32) state->lens[sym++] = 5; + distfix = next; + bits = 5; + inflate_table(DISTS, state->lens, 32, &(next), &(bits), state->work); + + /* do this just once */ + virgin = 0; + } +#else /* !BUILDFIXED */ +# include "inffixed.h" +#endif /* BUILDFIXED */ + state->lencode = lenfix; + state->lenbits = 9; + state->distcode = distfix; + state->distbits = 5; +} + +/* Macros for inflateBack(): */ + +/* Load returned state from inflate_fast() */ +#define LOAD() \ + do { \ + put = strm->next_out; \ + left = strm->avail_out; \ + next = strm->next_in; \ + have = strm->avail_in; \ + hold = state->hold; \ + bits = state->bits; \ + } while (0) + +/* Set state from registers for inflate_fast() */ +#define RESTORE() \ + do { \ + strm->next_out = put; \ + strm->avail_out = left; \ + strm->next_in = next; \ + strm->avail_in = have; \ + state->hold = hold; \ + state->bits = bits; \ + } while (0) + +/* Clear the input bit accumulator */ +#define INITBITS() \ + do { \ + hold = 0; \ + bits = 0; \ + } while (0) + +/* Assure that some input is available. If input is requested, but denied, + then return a Z_BUF_ERROR from inflateBack(). */ +#define PULL() \ + do { \ + if (have == 0) { \ + have = in(in_desc, &next); \ + if (have == 0) { \ + next = Z_NULL; \ + ret = Z_BUF_ERROR; \ + goto inf_leave; \ + } \ + } \ + } while (0) + +/* Get a byte of input into the bit accumulator, or return from inflateBack() + with an error if there is no input available. */ +#define PULLBYTE() \ + do { \ + PULL(); \ + have--; \ + hold += (unsigned long)(*next++) << bits; \ + bits += 8; \ + } while (0) + +/* Assure that there are at least n bits in the bit accumulator. If there is + not enough available input to do that, then return from inflateBack() with + an error. */ +#define NEEDBITS(n) \ + do { \ + while (bits < (unsigned)(n)) \ + PULLBYTE(); \ + } while (0) + +/* Return the low n bits of the bit accumulator (n < 16) */ +#define BITS(n) \ + ((unsigned)hold & ((1U << (n)) - 1)) + +/* Remove n bits from the bit accumulator */ +#define DROPBITS(n) \ + do { \ + hold >>= (n); \ + bits -= (unsigned)(n); \ + } while (0) + +/* Remove zero to seven bits as needed to go to a byte boundary */ +#define BYTEBITS() \ + do { \ + hold >>= bits & 7; \ + bits -= bits & 7; \ + } while (0) + +/* Assure that some output space is available, by writing out the window + if it's full. If the write fails, return from inflateBack() with a + Z_BUF_ERROR. */ +#define ROOM() \ + do { \ + if (left == 0) { \ + put = state->window; \ + left = state->wsize; \ + state->whave = left; \ + if (out(out_desc, put, left)) { \ + ret = Z_BUF_ERROR; \ + goto inf_leave; \ + } \ + } \ + } while (0) + +/* + strm provides the memory allocation functions and window buffer on input, + and provides information on the unused input on return. For Z_DATA_ERROR + returns, strm will also provide an error message. + + in() and out() are the call-back input and output functions. When + inflateBack() needs more input, it calls in(). When inflateBack() has + filled the window with output, or when it completes with data in the + window, it calls out() to write out the data. The application must not + change the provided input until in() is called again or inflateBack() + returns. The application must not change the window/output buffer until + inflateBack() returns. + + in() and out() are called with a descriptor parameter provided in the + inflateBack() call. This parameter can be a structure that provides the + information required to do the read or write, as well as accumulated + information on the input and output such as totals and check values. + + in() should return zero on failure. out() should return non-zero on + failure. If either in() or out() fails, than inflateBack() returns a + Z_BUF_ERROR. strm->next_in can be checked for Z_NULL to see whether it + was in() or out() that caused in the error. Otherwise, inflateBack() + returns Z_STREAM_END on success, Z_DATA_ERROR for an deflate format + error, or Z_MEM_ERROR if it could not allocate memory for the state. + inflateBack() can also return Z_STREAM_ERROR if the input parameters + are not correct, i.e. strm is Z_NULL or the state was not initialized. + */ +int ZEXPORT inflateBack(strm, in, in_desc, out, out_desc) +z_streamp strm; +in_func in; +void FAR *in_desc; +out_func out; +void FAR *out_desc; +{ + struct inflate_state FAR *state; + unsigned char FAR *next; /* next input */ + unsigned char FAR *put; /* next output */ + unsigned have, left; /* available input and output */ + unsigned long hold; /* bit buffer */ + unsigned bits; /* bits in bit buffer */ + unsigned copy; /* number of stored or match bytes to copy */ + unsigned char FAR *from; /* where to copy match bytes from */ + code here; /* current decoding table entry */ + code last; /* parent table entry */ + unsigned len; /* length to copy for repeats, bits to drop */ + int ret; /* return code */ + static const unsigned short order[19] = /* permutation of code lengths */ + {16, 17, 18, 0, 8, 7, 9, 6, 10, 5, 11, 4, 12, 3, 13, 2, 14, 1, 15}; + + /* Check that the strm exists and that the state was initialized */ + if (strm == Z_NULL || strm->state == Z_NULL) + return Z_STREAM_ERROR; + state = (struct inflate_state FAR *)strm->state; + + /* Reset the state */ + strm->msg = Z_NULL; + state->mode = TYPE; + state->last = 0; + state->whave = 0; + next = strm->next_in; + have = next != Z_NULL ? strm->avail_in : 0; + hold = 0; + bits = 0; + put = state->window; + left = state->wsize; + + /* Inflate until end of block marked as last */ + for (;;) + switch (state->mode) { + case TYPE: + /* determine and dispatch block type */ + if (state->last) { + BYTEBITS(); + state->mode = DONE; + break; + } + NEEDBITS(3); + state->last = BITS(1); + DROPBITS(1); + switch (BITS(2)) { + case 0: /* stored block */ + Tracev((stderr, "inflate: stored block%s\n", + state->last ? " (last)" : "")); + state->mode = STORED; + break; + case 1: /* fixed block */ + fixedtables(state); + Tracev((stderr, "inflate: fixed codes block%s\n", + state->last ? " (last)" : "")); + state->mode = LEN; /* decode codes */ + break; + case 2: /* dynamic block */ + Tracev((stderr, "inflate: dynamic codes block%s\n", + state->last ? " (last)" : "")); + state->mode = TABLE; + break; + case 3: + strm->msg = (char *)"invalid block type"; + state->mode = BAD; + } + DROPBITS(2); + break; + + case STORED: + /* get and verify stored block length */ + BYTEBITS(); /* go to byte boundary */ + NEEDBITS(32); + if ((hold & 0xffff) != ((hold >> 16) ^ 0xffff)) { + strm->msg = (char *)"invalid stored block lengths"; + state->mode = BAD; + break; + } + state->length = (unsigned)hold & 0xffff; + Tracev((stderr, "inflate: stored length %u\n", + state->length)); + INITBITS(); + + /* copy stored block from input to output */ + while (state->length != 0) { + copy = state->length; + PULL(); + ROOM(); + if (copy > have) copy = have; + if (copy > left) copy = left; + zmemcpy(put, next, copy); + have -= copy; + next += copy; + left -= copy; + put += copy; + state->length -= copy; + } + Tracev((stderr, "inflate: stored end\n")); + state->mode = TYPE; + break; + + case TABLE: + /* get dynamic table entries descriptor */ + NEEDBITS(14); + state->nlen = BITS(5) + 257; + DROPBITS(5); + state->ndist = BITS(5) + 1; + DROPBITS(5); + state->ncode = BITS(4) + 4; + DROPBITS(4); +#ifndef PKZIP_BUG_WORKAROUND + if (state->nlen > 286 || state->ndist > 30) { + strm->msg = (char *)"too many length or distance symbols"; + state->mode = BAD; + break; + } +#endif + Tracev((stderr, "inflate: table sizes ok\n")); + + /* get code length code lengths (not a typo) */ + state->have = 0; + while (state->have < state->ncode) { + NEEDBITS(3); + state->lens[order[state->have++]] = (unsigned short)BITS(3); + DROPBITS(3); + } + while (state->have < 19) + state->lens[order[state->have++]] = 0; + state->next = state->codes; + state->lencode = (code const FAR *)(state->next); + state->lenbits = 7; + ret = inflate_table(CODES, state->lens, 19, &(state->next), + &(state->lenbits), state->work); + if (ret) { + strm->msg = (char *)"invalid code lengths set"; + state->mode = BAD; + break; + } + Tracev((stderr, "inflate: code lengths ok\n")); + + /* get length and distance code code lengths */ + state->have = 0; + while (state->have < state->nlen + state->ndist) { + for (;;) { + here = state->lencode[BITS(state->lenbits)]; + if ((unsigned)(here.bits) <= bits) break; + PULLBYTE(); + } + if (here.val < 16) { + NEEDBITS(here.bits); + DROPBITS(here.bits); + state->lens[state->have++] = here.val; + } + else { + if (here.val == 16) { + NEEDBITS(here.bits + 2); + DROPBITS(here.bits); + if (state->have == 0) { + strm->msg = (char *)"invalid bit length repeat"; + state->mode = BAD; + break; + } + len = (unsigned)(state->lens[state->have - 1]); + copy = 3 + BITS(2); + DROPBITS(2); + } + else if (here.val == 17) { + NEEDBITS(here.bits + 3); + DROPBITS(here.bits); + len = 0; + copy = 3 + BITS(3); + DROPBITS(3); + } + else { + NEEDBITS(here.bits + 7); + DROPBITS(here.bits); + len = 0; + copy = 11 + BITS(7); + DROPBITS(7); + } + if (state->have + copy > state->nlen + state->ndist) { + strm->msg = (char *)"invalid bit length repeat"; + state->mode = BAD; + break; + } + while (copy--) + state->lens[state->have++] = (unsigned short)len; + } + } + + /* handle error breaks in while */ + if (state->mode == BAD) break; + + /* check for end-of-block code (better have one) */ + if (state->lens[256] == 0) { + strm->msg = (char *)"invalid code -- missing end-of-block"; + state->mode = BAD; + break; + } + + /* build code tables -- note: do not change the lenbits or distbits + values here (9 and 6) without reading the comments in inftrees.h + concerning the ENOUGH constants, which depend on those values */ + state->next = state->codes; + state->lencode = (code const FAR *)(state->next); + state->lenbits = 9; + ret = inflate_table(LENS, state->lens, state->nlen, &(state->next), + &(state->lenbits), state->work); + if (ret) { + strm->msg = (char *)"invalid literal/lengths set"; + state->mode = BAD; + break; + } + state->distcode = (code const FAR *)(state->next); + state->distbits = 6; + ret = inflate_table(DISTS, state->lens + state->nlen, state->ndist, + &(state->next), &(state->distbits), state->work); + if (ret) { + strm->msg = (char *)"invalid distances set"; + state->mode = BAD; + break; + } + Tracev((stderr, "inflate: codes ok\n")); + state->mode = LEN; + + case LEN: + /* use inflate_fast() if we have enough input and output */ + if (have >= 6 && left >= 258) { + RESTORE(); + if (state->whave < state->wsize) + state->whave = state->wsize - left; + inflate_fast(strm, state->wsize); + LOAD(); + break; + } + + /* get a literal, length, or end-of-block code */ + for (;;) { + here = state->lencode[BITS(state->lenbits)]; + if ((unsigned)(here.bits) <= bits) break; + PULLBYTE(); + } + if (here.op && (here.op & 0xf0) == 0) { + last = here; + for (;;) { + here = state->lencode[last.val + + (BITS(last.bits + last.op) >> last.bits)]; + if ((unsigned)(last.bits + here.bits) <= bits) break; + PULLBYTE(); + } + DROPBITS(last.bits); + } + DROPBITS(here.bits); + state->length = (unsigned)here.val; + + /* process literal */ + if (here.op == 0) { + Tracevv((stderr, here.val >= 0x20 && here.val < 0x7f ? + "inflate: literal '%c'\n" : + "inflate: literal 0x%02x\n", here.val)); + ROOM(); + *put++ = (unsigned char)(state->length); + left--; + state->mode = LEN; + break; + } + + /* process end of block */ + if (here.op & 32) { + Tracevv((stderr, "inflate: end of block\n")); + state->mode = TYPE; + break; + } + + /* invalid code */ + if (here.op & 64) { + strm->msg = (char *)"invalid literal/length code"; + state->mode = BAD; + break; + } + + /* length code -- get extra bits, if any */ + state->extra = (unsigned)(here.op) & 15; + if (state->extra != 0) { + NEEDBITS(state->extra); + state->length += BITS(state->extra); + DROPBITS(state->extra); + } + Tracevv((stderr, "inflate: length %u\n", state->length)); + + /* get distance code */ + for (;;) { + here = state->distcode[BITS(state->distbits)]; + if ((unsigned)(here.bits) <= bits) break; + PULLBYTE(); + } + if ((here.op & 0xf0) == 0) { + last = here; + for (;;) { + here = state->distcode[last.val + + (BITS(last.bits + last.op) >> last.bits)]; + if ((unsigned)(last.bits + here.bits) <= bits) break; + PULLBYTE(); + } + DROPBITS(last.bits); + } + DROPBITS(here.bits); + if (here.op & 64) { + strm->msg = (char *)"invalid distance code"; + state->mode = BAD; + break; + } + state->offset = (unsigned)here.val; + + /* get distance extra bits, if any */ + state->extra = (unsigned)(here.op) & 15; + if (state->extra != 0) { + NEEDBITS(state->extra); + state->offset += BITS(state->extra); + DROPBITS(state->extra); + } + if (state->offset > state->wsize - (state->whave < state->wsize ? + left : 0)) { + strm->msg = (char *)"invalid distance too far back"; + state->mode = BAD; + break; + } + Tracevv((stderr, "inflate: distance %u\n", state->offset)); + + /* copy match from window to output */ + do { + ROOM(); + copy = state->wsize - state->offset; + if (copy < left) { + from = put + copy; + copy = left - copy; + } + else { + from = put - state->offset; + copy = left; + } + if (copy > state->length) copy = state->length; + state->length -= copy; + left -= copy; + do { + *put++ = *from++; + } while (--copy); + } while (state->length != 0); + break; + + case DONE: + /* inflate stream terminated properly -- write leftover output */ + ret = Z_STREAM_END; + if (left < state->wsize) { + if (out(out_desc, state->window, state->wsize - left)) + ret = Z_BUF_ERROR; + } + goto inf_leave; + + case BAD: + ret = Z_DATA_ERROR; + goto inf_leave; + + default: /* can't happen, but makes compilers happy */ + ret = Z_STREAM_ERROR; + goto inf_leave; + } + + /* Return unused input */ + inf_leave: + strm->next_in = next; + strm->avail_in = have; + return ret; +} + +int ZEXPORT inflateBackEnd(strm) +z_streamp strm; +{ + if (strm == Z_NULL || strm->state == Z_NULL || strm->zfree == (free_func)0) + return Z_STREAM_ERROR; + ZFREE(strm, strm->state); + strm->state = Z_NULL; + Tracev((stderr, "inflate: end\n")); + return Z_OK; +} diff --git a/zlib/inffast.c b/zlib/inffast.c new file mode 100644 index 0000000..2f1d60b --- /dev/null +++ b/zlib/inffast.c @@ -0,0 +1,340 @@ +/* inffast.c -- fast decoding + * Copyright (C) 1995-2008, 2010 Mark Adler + * For conditions of distribution and use, see copyright notice in zlib.h + */ + +#include "zutil.h" +#include "inftrees.h" +#include "inflate.h" +#include "inffast.h" + +#ifndef ASMINF + +/* Allow machine dependent optimization for post-increment or pre-increment. + Based on testing to date, + Pre-increment preferred for: + - PowerPC G3 (Adler) + - MIPS R5000 (Randers-Pehrson) + Post-increment preferred for: + - none + No measurable difference: + - Pentium III (Anderson) + - M68060 (Nikl) + */ +#ifdef POSTINC +# define OFF 0 +# define PUP(a) *(a)++ +#else +# define OFF 1 +# define PUP(a) *++(a) +#endif + +/* + Decode literal, length, and distance codes and write out the resulting + literal and match bytes until either not enough input or output is + available, an end-of-block is encountered, or a data error is encountered. + When large enough input and output buffers are supplied to inflate(), for + example, a 16K input buffer and a 64K output buffer, more than 95% of the + inflate execution time is spent in this routine. + + Entry assumptions: + + state->mode == LEN + strm->avail_in >= 6 + strm->avail_out >= 258 + start >= strm->avail_out + state->bits < 8 + + On return, state->mode is one of: + + LEN -- ran out of enough output space or enough available input + TYPE -- reached end of block code, inflate() to interpret next block + BAD -- error in block data + + Notes: + + - The maximum input bits used by a length/distance pair is 15 bits for the + length code, 5 bits for the length extra, 15 bits for the distance code, + and 13 bits for the distance extra. This totals 48 bits, or six bytes. + Therefore if strm->avail_in >= 6, then there is enough input to avoid + checking for available input while decoding. + + - The maximum bytes that a single length/distance pair can output is 258 + bytes, which is the maximum length that can be coded. inflate_fast() + requires strm->avail_out >= 258 for each loop to avoid checking for + output space. + */ +void ZLIB_INTERNAL inflate_fast(strm, start) +z_streamp strm; +unsigned start; /* inflate()'s starting value for strm->avail_out */ +{ + struct inflate_state FAR *state; + unsigned char FAR *in; /* local strm->next_in */ + unsigned char FAR *last; /* while in < last, enough input available */ + unsigned char FAR *out; /* local strm->next_out */ + unsigned char FAR *beg; /* inflate()'s initial strm->next_out */ + unsigned char FAR *end; /* while out < end, enough space available */ +#ifdef INFLATE_STRICT + unsigned dmax; /* maximum distance from zlib header */ +#endif + unsigned wsize; /* window size or zero if not using window */ + unsigned whave; /* valid bytes in the window */ + unsigned wnext; /* window write index */ + unsigned char FAR *window; /* allocated sliding window, if wsize != 0 */ + unsigned long hold; /* local strm->hold */ + unsigned bits; /* local strm->bits */ + code const FAR *lcode; /* local strm->lencode */ + code const FAR *dcode; /* local strm->distcode */ + unsigned lmask; /* mask for first level of length codes */ + unsigned dmask; /* mask for first level of distance codes */ + code here; /* retrieved table entry */ + unsigned op; /* code bits, operation, extra bits, or */ + /* window position, window bytes to copy */ + unsigned len; /* match length, unused bytes */ + unsigned dist; /* match distance */ + unsigned char FAR *from; /* where to copy match from */ + + /* copy state to local variables */ + state = (struct inflate_state FAR *)strm->state; + in = strm->next_in - OFF; + last = in + (strm->avail_in - 5); + out = strm->next_out - OFF; + beg = out - (start - strm->avail_out); + end = out + (strm->avail_out - 257); +#ifdef INFLATE_STRICT + dmax = state->dmax; +#endif + wsize = state->wsize; + whave = state->whave; + wnext = state->wnext; + window = state->window; + hold = state->hold; + bits = state->bits; + lcode = state->lencode; + dcode = state->distcode; + lmask = (1U << state->lenbits) - 1; + dmask = (1U << state->distbits) - 1; + + /* decode literals and length/distances until end-of-block or not enough + input data or output space */ + do { + if (bits < 15) { + hold += (unsigned long)(PUP(in)) << bits; + bits += 8; + hold += (unsigned long)(PUP(in)) << bits; + bits += 8; + } + here = lcode[hold & lmask]; + dolen: + op = (unsigned)(here.bits); + hold >>= op; + bits -= op; + op = (unsigned)(here.op); + if (op == 0) { /* literal */ + Tracevv((stderr, here.val >= 0x20 && here.val < 0x7f ? + "inflate: literal '%c'\n" : + "inflate: literal 0x%02x\n", here.val)); + PUP(out) = (unsigned char)(here.val); + } + else if (op & 16) { /* length base */ + len = (unsigned)(here.val); + op &= 15; /* number of extra bits */ + if (op) { + if (bits < op) { + hold += (unsigned long)(PUP(in)) << bits; + bits += 8; + } + len += (unsigned)hold & ((1U << op) - 1); + hold >>= op; + bits -= op; + } + Tracevv((stderr, "inflate: length %u\n", len)); + if (bits < 15) { + hold += (unsigned long)(PUP(in)) << bits; + bits += 8; + hold += (unsigned long)(PUP(in)) << bits; + bits += 8; + } + here = dcode[hold & dmask]; + dodist: + op = (unsigned)(here.bits); + hold >>= op; + bits -= op; + op = (unsigned)(here.op); + if (op & 16) { /* distance base */ + dist = (unsigned)(here.val); + op &= 15; /* number of extra bits */ + if (bits < op) { + hold += (unsigned long)(PUP(in)) << bits; + bits += 8; + if (bits < op) { + hold += (unsigned long)(PUP(in)) << bits; + bits += 8; + } + } + dist += (unsigned)hold & ((1U << op) - 1); +#ifdef INFLATE_STRICT + if (dist > dmax) { + strm->msg = (char *)"invalid distance too far back"; + state->mode = BAD; + break; + } +#endif + hold >>= op; + bits -= op; + Tracevv((stderr, "inflate: distance %u\n", dist)); + op = (unsigned)(out - beg); /* max distance in output */ + if (dist > op) { /* see if copy from window */ + op = dist - op; /* distance back in window */ + if (op > whave) { + if (state->sane) { + strm->msg = + (char *)"invalid distance too far back"; + state->mode = BAD; + break; + } +#ifdef INFLATE_ALLOW_INVALID_DISTANCE_TOOFAR_ARRR + if (len <= op - whave) { + do { + PUP(out) = 0; + } while (--len); + continue; + } + len -= op - whave; + do { + PUP(out) = 0; + } while (--op > whave); + if (op == 0) { + from = out - dist; + do { + PUP(out) = PUP(from); + } while (--len); + continue; + } +#endif + } + from = window - OFF; + if (wnext == 0) { /* very common case */ + from += wsize - op; + if (op < len) { /* some from window */ + len -= op; + do { + PUP(out) = PUP(from); + } while (--op); + from = out - dist; /* rest from output */ + } + } + else if (wnext < op) { /* wrap around window */ + from += wsize + wnext - op; + op -= wnext; + if (op < len) { /* some from end of window */ + len -= op; + do { + PUP(out) = PUP(from); + } while (--op); + from = window - OFF; + if (wnext < len) { /* some from start of window */ + op = wnext; + len -= op; + do { + PUP(out) = PUP(from); + } while (--op); + from = out - dist; /* rest from output */ + } + } + } + else { /* contiguous in window */ + from += wnext - op; + if (op < len) { /* some from window */ + len -= op; + do { + PUP(out) = PUP(from); + } while (--op); + from = out - dist; /* rest from output */ + } + } + while (len > 2) { + PUP(out) = PUP(from); + PUP(out) = PUP(from); + PUP(out) = PUP(from); + len -= 3; + } + if (len) { + PUP(out) = PUP(from); + if (len > 1) + PUP(out) = PUP(from); + } + } + else { + from = out - dist; /* copy direct from output */ + do { /* minimum length is three */ + PUP(out) = PUP(from); + PUP(out) = PUP(from); + PUP(out) = PUP(from); + len -= 3; + } while (len > 2); + if (len) { + PUP(out) = PUP(from); + if (len > 1) + PUP(out) = PUP(from); + } + } + } + else if ((op & 64) == 0) { /* 2nd level distance code */ + here = dcode[here.val + (hold & ((1U << op) - 1))]; + goto dodist; + } + else { + strm->msg = (char *)"invalid distance code"; + state->mode = BAD; + break; + } + } + else if ((op & 64) == 0) { /* 2nd level length code */ + here = lcode[here.val + (hold & ((1U << op) - 1))]; + goto dolen; + } + else if (op & 32) { /* end-of-block */ + Tracevv((stderr, "inflate: end of block\n")); + state->mode = TYPE; + break; + } + else { + strm->msg = (char *)"invalid literal/length code"; + state->mode = BAD; + break; + } + } while (in < last && out < end); + + /* return unused bytes (on entry, bits < 8, so in won't go too far back) */ + len = bits >> 3; + in -= len; + bits -= len << 3; + hold &= (1U << bits) - 1; + + /* update state and return */ + strm->next_in = in + OFF; + strm->next_out = out + OFF; + strm->avail_in = (unsigned)(in < last ? 5 + (last - in) : 5 - (in - last)); + strm->avail_out = (unsigned)(out < end ? + 257 + (end - out) : 257 - (out - end)); + state->hold = hold; + state->bits = bits; + return; +} + +/* + inflate_fast() speedups that turned out slower (on a PowerPC G3 750CXe): + - Using bit fields for code structure + - Different op definition to avoid & for extra bits (do & for table bits) + - Three separate decoding do-loops for direct, window, and wnext == 0 + - Special case for distance > 1 copies to do overlapped load and store copy + - Explicit branch predictions (based on measured branch probabilities) + - Deferring match copy and interspersed it with decoding subsequent codes + - Swapping literal/length else + - Swapping window/direct else + - Larger unrolled copy loops (three is about right) + - Moving len -= 3 statement into middle of loop + */ + +#endif /* !ASMINF */ diff --git a/zlib/inffast.h b/zlib/inffast.h new file mode 100644 index 0000000..e5c1aa4 --- /dev/null +++ b/zlib/inffast.h @@ -0,0 +1,11 @@ +/* inffast.h -- header to use inffast.c + * Copyright (C) 1995-2003, 2010 Mark Adler + * For conditions of distribution and use, see copyright notice in zlib.h + */ + +/* WARNING: this file should *not* be used by applications. It is + part of the implementation of the compression library and is + subject to change. Applications should only use zlib.h. + */ + +void ZLIB_INTERNAL inflate_fast OF((z_streamp strm, unsigned start)); diff --git a/zlib/inffixed.h b/zlib/inffixed.h new file mode 100644 index 0000000..75ed4b5 --- /dev/null +++ b/zlib/inffixed.h @@ -0,0 +1,94 @@ + /* inffixed.h -- table for decoding fixed codes + * Generated automatically by makefixed(). + */ + + /* WARNING: this file should *not* be used by applications. It + is part of the implementation of the compression library and + is subject to change. Applications should only use zlib.h. + */ + + static const code lenfix[512] = { + {96,7,0},{0,8,80},{0,8,16},{20,8,115},{18,7,31},{0,8,112},{0,8,48}, + {0,9,192},{16,7,10},{0,8,96},{0,8,32},{0,9,160},{0,8,0},{0,8,128}, + {0,8,64},{0,9,224},{16,7,6},{0,8,88},{0,8,24},{0,9,144},{19,7,59}, + {0,8,120},{0,8,56},{0,9,208},{17,7,17},{0,8,104},{0,8,40},{0,9,176}, + {0,8,8},{0,8,136},{0,8,72},{0,9,240},{16,7,4},{0,8,84},{0,8,20}, + {21,8,227},{19,7,43},{0,8,116},{0,8,52},{0,9,200},{17,7,13},{0,8,100}, + {0,8,36},{0,9,168},{0,8,4},{0,8,132},{0,8,68},{0,9,232},{16,7,8}, + {0,8,92},{0,8,28},{0,9,152},{20,7,83},{0,8,124},{0,8,60},{0,9,216}, + {18,7,23},{0,8,108},{0,8,44},{0,9,184},{0,8,12},{0,8,140},{0,8,76}, + {0,9,248},{16,7,3},{0,8,82},{0,8,18},{21,8,163},{19,7,35},{0,8,114}, + {0,8,50},{0,9,196},{17,7,11},{0,8,98},{0,8,34},{0,9,164},{0,8,2}, + {0,8,130},{0,8,66},{0,9,228},{16,7,7},{0,8,90},{0,8,26},{0,9,148}, + {20,7,67},{0,8,122},{0,8,58},{0,9,212},{18,7,19},{0,8,106},{0,8,42}, + {0,9,180},{0,8,10},{0,8,138},{0,8,74},{0,9,244},{16,7,5},{0,8,86}, + {0,8,22},{64,8,0},{19,7,51},{0,8,118},{0,8,54},{0,9,204},{17,7,15}, + {0,8,102},{0,8,38},{0,9,172},{0,8,6},{0,8,134},{0,8,70},{0,9,236}, + {16,7,9},{0,8,94},{0,8,30},{0,9,156},{20,7,99},{0,8,126},{0,8,62}, + {0,9,220},{18,7,27},{0,8,110},{0,8,46},{0,9,188},{0,8,14},{0,8,142}, + {0,8,78},{0,9,252},{96,7,0},{0,8,81},{0,8,17},{21,8,131},{18,7,31}, + {0,8,113},{0,8,49},{0,9,194},{16,7,10},{0,8,97},{0,8,33},{0,9,162}, + {0,8,1},{0,8,129},{0,8,65},{0,9,226},{16,7,6},{0,8,89},{0,8,25}, + {0,9,146},{19,7,59},{0,8,121},{0,8,57},{0,9,210},{17,7,17},{0,8,105}, + {0,8,41},{0,9,178},{0,8,9},{0,8,137},{0,8,73},{0,9,242},{16,7,4}, + {0,8,85},{0,8,21},{16,8,258},{19,7,43},{0,8,117},{0,8,53},{0,9,202}, + {17,7,13},{0,8,101},{0,8,37},{0,9,170},{0,8,5},{0,8,133},{0,8,69}, + {0,9,234},{16,7,8},{0,8,93},{0,8,29},{0,9,154},{20,7,83},{0,8,125}, + {0,8,61},{0,9,218},{18,7,23},{0,8,109},{0,8,45},{0,9,186},{0,8,13}, + {0,8,141},{0,8,77},{0,9,250},{16,7,3},{0,8,83},{0,8,19},{21,8,195}, + {19,7,35},{0,8,115},{0,8,51},{0,9,198},{17,7,11},{0,8,99},{0,8,35}, + {0,9,166},{0,8,3},{0,8,131},{0,8,67},{0,9,230},{16,7,7},{0,8,91}, + {0,8,27},{0,9,150},{20,7,67},{0,8,123},{0,8,59},{0,9,214},{18,7,19}, + {0,8,107},{0,8,43},{0,9,182},{0,8,11},{0,8,139},{0,8,75},{0,9,246}, + {16,7,5},{0,8,87},{0,8,23},{64,8,0},{19,7,51},{0,8,119},{0,8,55}, + {0,9,206},{17,7,15},{0,8,103},{0,8,39},{0,9,174},{0,8,7},{0,8,135}, + {0,8,71},{0,9,238},{16,7,9},{0,8,95},{0,8,31},{0,9,158},{20,7,99}, + {0,8,127},{0,8,63},{0,9,222},{18,7,27},{0,8,111},{0,8,47},{0,9,190}, + {0,8,15},{0,8,143},{0,8,79},{0,9,254},{96,7,0},{0,8,80},{0,8,16}, + {20,8,115},{18,7,31},{0,8,112},{0,8,48},{0,9,193},{16,7,10},{0,8,96}, + {0,8,32},{0,9,161},{0,8,0},{0,8,128},{0,8,64},{0,9,225},{16,7,6}, + {0,8,88},{0,8,24},{0,9,145},{19,7,59},{0,8,120},{0,8,56},{0,9,209}, + {17,7,17},{0,8,104},{0,8,40},{0,9,177},{0,8,8},{0,8,136},{0,8,72}, + {0,9,241},{16,7,4},{0,8,84},{0,8,20},{21,8,227},{19,7,43},{0,8,116}, + {0,8,52},{0,9,201},{17,7,13},{0,8,100},{0,8,36},{0,9,169},{0,8,4}, + {0,8,132},{0,8,68},{0,9,233},{16,7,8},{0,8,92},{0,8,28},{0,9,153}, + {20,7,83},{0,8,124},{0,8,60},{0,9,217},{18,7,23},{0,8,108},{0,8,44}, + {0,9,185},{0,8,12},{0,8,140},{0,8,76},{0,9,249},{16,7,3},{0,8,82}, + {0,8,18},{21,8,163},{19,7,35},{0,8,114},{0,8,50},{0,9,197},{17,7,11}, + {0,8,98},{0,8,34},{0,9,165},{0,8,2},{0,8,130},{0,8,66},{0,9,229}, + {16,7,7},{0,8,90},{0,8,26},{0,9,149},{20,7,67},{0,8,122},{0,8,58}, + {0,9,213},{18,7,19},{0,8,106},{0,8,42},{0,9,181},{0,8,10},{0,8,138}, + {0,8,74},{0,9,245},{16,7,5},{0,8,86},{0,8,22},{64,8,0},{19,7,51}, + {0,8,118},{0,8,54},{0,9,205},{17,7,15},{0,8,102},{0,8,38},{0,9,173}, + {0,8,6},{0,8,134},{0,8,70},{0,9,237},{16,7,9},{0,8,94},{0,8,30}, + {0,9,157},{20,7,99},{0,8,126},{0,8,62},{0,9,221},{18,7,27},{0,8,110}, + {0,8,46},{0,9,189},{0,8,14},{0,8,142},{0,8,78},{0,9,253},{96,7,0}, + {0,8,81},{0,8,17},{21,8,131},{18,7,31},{0,8,113},{0,8,49},{0,9,195}, + {16,7,10},{0,8,97},{0,8,33},{0,9,163},{0,8,1},{0,8,129},{0,8,65}, + {0,9,227},{16,7,6},{0,8,89},{0,8,25},{0,9,147},{19,7,59},{0,8,121}, + {0,8,57},{0,9,211},{17,7,17},{0,8,105},{0,8,41},{0,9,179},{0,8,9}, + {0,8,137},{0,8,73},{0,9,243},{16,7,4},{0,8,85},{0,8,21},{16,8,258}, + {19,7,43},{0,8,117},{0,8,53},{0,9,203},{17,7,13},{0,8,101},{0,8,37}, + {0,9,171},{0,8,5},{0,8,133},{0,8,69},{0,9,235},{16,7,8},{0,8,93}, + {0,8,29},{0,9,155},{20,7,83},{0,8,125},{0,8,61},{0,9,219},{18,7,23}, + {0,8,109},{0,8,45},{0,9,187},{0,8,13},{0,8,141},{0,8,77},{0,9,251}, + {16,7,3},{0,8,83},{0,8,19},{21,8,195},{19,7,35},{0,8,115},{0,8,51}, + {0,9,199},{17,7,11},{0,8,99},{0,8,35},{0,9,167},{0,8,3},{0,8,131}, + {0,8,67},{0,9,231},{16,7,7},{0,8,91},{0,8,27},{0,9,151},{20,7,67}, + {0,8,123},{0,8,59},{0,9,215},{18,7,19},{0,8,107},{0,8,43},{0,9,183}, + {0,8,11},{0,8,139},{0,8,75},{0,9,247},{16,7,5},{0,8,87},{0,8,23}, + {64,8,0},{19,7,51},{0,8,119},{0,8,55},{0,9,207},{17,7,15},{0,8,103}, + {0,8,39},{0,9,175},{0,8,7},{0,8,135},{0,8,71},{0,9,239},{16,7,9}, + {0,8,95},{0,8,31},{0,9,159},{20,7,99},{0,8,127},{0,8,63},{0,9,223}, + {18,7,27},{0,8,111},{0,8,47},{0,9,191},{0,8,15},{0,8,143},{0,8,79}, + {0,9,255} + }; + + static const code distfix[32] = { + {16,5,1},{23,5,257},{19,5,17},{27,5,4097},{17,5,5},{25,5,1025}, + {21,5,65},{29,5,16385},{16,5,3},{24,5,513},{20,5,33},{28,5,8193}, + {18,5,9},{26,5,2049},{22,5,129},{64,5,0},{16,5,2},{23,5,385}, + {19,5,25},{27,5,6145},{17,5,7},{25,5,1537},{21,5,97},{29,5,24577}, + {16,5,4},{24,5,769},{20,5,49},{28,5,12289},{18,5,13},{26,5,3073}, + {22,5,193},{64,5,0} + }; diff --git a/zlib/inflate.c b/zlib/inflate.c new file mode 100644 index 0000000..a8431ab --- /dev/null +++ b/zlib/inflate.c @@ -0,0 +1,1480 @@ +/* inflate.c -- zlib decompression + * Copyright (C) 1995-2010 Mark Adler + * For conditions of distribution and use, see copyright notice in zlib.h + */ + +/* + * Change history: + * + * 1.2.beta0 24 Nov 2002 + * - First version -- complete rewrite of inflate to simplify code, avoid + * creation of window when not needed, minimize use of window when it is + * needed, make inffast.c even faster, implement gzip decoding, and to + * improve code readability and style over the previous zlib inflate code + * + * 1.2.beta1 25 Nov 2002 + * - Use pointers for available input and output checking in inffast.c + * - Remove input and output counters in inffast.c + * - Change inffast.c entry and loop from avail_in >= 7 to >= 6 + * - Remove unnecessary second byte pull from length extra in inffast.c + * - Unroll direct copy to three copies per loop in inffast.c + * + * 1.2.beta2 4 Dec 2002 + * - Change external routine names to reduce potential conflicts + * - Correct filename to inffixed.h for fixed tables in inflate.c + * - Make hbuf[] unsigned char to match parameter type in inflate.c + * - Change strm->next_out[-state->offset] to *(strm->next_out - state->offset) + * to avoid negation problem on Alphas (64 bit) in inflate.c + * + * 1.2.beta3 22 Dec 2002 + * - Add comments on state->bits assertion in inffast.c + * - Add comments on op field in inftrees.h + * - Fix bug in reuse of allocated window after inflateReset() + * - Remove bit fields--back to byte structure for speed + * - Remove distance extra == 0 check in inflate_fast()--only helps for lengths + * - Change post-increments to pre-increments in inflate_fast(), PPC biased? + * - Add compile time option, POSTINC, to use post-increments instead (Intel?) + * - Make MATCH copy in inflate() much faster for when inflate_fast() not used + * - Use local copies of stream next and avail values, as well as local bit + * buffer and bit count in inflate()--for speed when inflate_fast() not used + * + * 1.2.beta4 1 Jan 2003 + * - Split ptr - 257 statements in inflate_table() to avoid compiler warnings + * - Move a comment on output buffer sizes from inffast.c to inflate.c + * - Add comments in inffast.c to introduce the inflate_fast() routine + * - Rearrange window copies in inflate_fast() for speed and simplification + * - Unroll last copy for window match in inflate_fast() + * - Use local copies of window variables in inflate_fast() for speed + * - Pull out common wnext == 0 case for speed in inflate_fast() + * - Make op and len in inflate_fast() unsigned for consistency + * - Add FAR to lcode and dcode declarations in inflate_fast() + * - Simplified bad distance check in inflate_fast() + * - Added inflateBackInit(), inflateBack(), and inflateBackEnd() in new + * source file infback.c to provide a call-back interface to inflate for + * programs like gzip and unzip -- uses window as output buffer to avoid + * window copying + * + * 1.2.beta5 1 Jan 2003 + * - Improved inflateBack() interface to allow the caller to provide initial + * input in strm. + * - Fixed stored blocks bug in inflateBack() + * + * 1.2.beta6 4 Jan 2003 + * - Added comments in inffast.c on effectiveness of POSTINC + * - Typecasting all around to reduce compiler warnings + * - Changed loops from while (1) or do {} while (1) to for (;;), again to + * make compilers happy + * - Changed type of window in inflateBackInit() to unsigned char * + * + * 1.2.beta7 27 Jan 2003 + * - Changed many types to unsigned or unsigned short to avoid warnings + * - Added inflateCopy() function + * + * 1.2.0 9 Mar 2003 + * - Changed inflateBack() interface to provide separate opaque descriptors + * for the in() and out() functions + * - Changed inflateBack() argument and in_func typedef to swap the length + * and buffer address return values for the input function + * - Check next_in and next_out for Z_NULL on entry to inflate() + * + * The history for versions after 1.2.0 are in ChangeLog in zlib distribution. + */ + +#include "zutil.h" +#include "inftrees.h" +#include "inflate.h" +#include "inffast.h" + +#ifdef MAKEFIXED +# ifndef BUILDFIXED +# define BUILDFIXED +# endif +#endif + +/* function prototypes */ +local void fixedtables OF((struct inflate_state FAR *state)); +local int updatewindow OF((z_streamp strm, unsigned out)); +#ifdef BUILDFIXED + void makefixed OF((void)); +#endif +local unsigned syncsearch OF((unsigned FAR *have, unsigned char FAR *buf, + unsigned len)); + +int ZEXPORT inflateReset(strm) +z_streamp strm; +{ + struct inflate_state FAR *state; + + if (strm == Z_NULL || strm->state == Z_NULL) return Z_STREAM_ERROR; + state = (struct inflate_state FAR *)strm->state; + strm->total_in = strm->total_out = state->total = 0; + strm->msg = Z_NULL; + strm->adler = 1; /* to support ill-conceived Java test suite */ + state->mode = HEAD; + state->last = 0; + state->havedict = 0; + state->dmax = 32768U; + state->head = Z_NULL; + state->wsize = 0; + state->whave = 0; + state->wnext = 0; + state->hold = 0; + state->bits = 0; + state->lencode = state->distcode = state->next = state->codes; + state->sane = 1; + state->back = -1; + Tracev((stderr, "inflate: reset\n")); + return Z_OK; +} + +int ZEXPORT inflateReset2(strm, windowBits) +z_streamp strm; +int windowBits; +{ + int wrap; + struct inflate_state FAR *state; + + /* get the state */ + if (strm == Z_NULL || strm->state == Z_NULL) return Z_STREAM_ERROR; + state = (struct inflate_state FAR *)strm->state; + + /* extract wrap request from windowBits parameter */ + if (windowBits < 0) { + wrap = 0; + windowBits = -windowBits; + } + else { + wrap = (windowBits >> 4) + 1; +#ifdef GUNZIP + if (windowBits < 48) + windowBits &= 15; +#endif + } + + /* set number of window bits, free window if different */ + if (windowBits && (windowBits < 8 || windowBits > 15)) + return Z_STREAM_ERROR; + if (state->window != Z_NULL && state->wbits != (unsigned)windowBits) { + ZFREE(strm, state->window); + state->window = Z_NULL; + } + + /* update state and reset the rest of it */ + state->wrap = wrap; + state->wbits = (unsigned)windowBits; + return inflateReset(strm); +} + +int ZEXPORT inflateInit2_(strm, windowBits, version, stream_size) +z_streamp strm; +int windowBits; +const char *version; +int stream_size; +{ + int ret; + struct inflate_state FAR *state; + + if (version == Z_NULL || version[0] != ZLIB_VERSION[0] || + stream_size != (int)(sizeof(z_stream))) + return Z_VERSION_ERROR; + if (strm == Z_NULL) return Z_STREAM_ERROR; + strm->msg = Z_NULL; /* in case we return an error */ + if (strm->zalloc == (alloc_func)0) { + strm->zalloc = zcalloc; + strm->opaque = (voidpf)0; + } + if (strm->zfree == (free_func)0) strm->zfree = zcfree; + state = (struct inflate_state FAR *) + ZALLOC(strm, 1, sizeof(struct inflate_state)); + if (state == Z_NULL) return Z_MEM_ERROR; + Tracev((stderr, "inflate: allocated\n")); + strm->state = (struct internal_state FAR *)state; + state->window = Z_NULL; + ret = inflateReset2(strm, windowBits); + if (ret != Z_OK) { + ZFREE(strm, state); + strm->state = Z_NULL; + } + return ret; +} + +int ZEXPORT inflateInit_(strm, version, stream_size) +z_streamp strm; +const char *version; +int stream_size; +{ + return inflateInit2_(strm, DEF_WBITS, version, stream_size); +} + +int ZEXPORT inflatePrime(strm, bits, value) +z_streamp strm; +int bits; +int value; +{ + struct inflate_state FAR *state; + + if (strm == Z_NULL || strm->state == Z_NULL) return Z_STREAM_ERROR; + state = (struct inflate_state FAR *)strm->state; + if (bits < 0) { + state->hold = 0; + state->bits = 0; + return Z_OK; + } + if (bits > 16 || state->bits + bits > 32) return Z_STREAM_ERROR; + value &= (1L << bits) - 1; + state->hold += value << state->bits; + state->bits += bits; + return Z_OK; +} + +/* + Return state with length and distance decoding tables and index sizes set to + fixed code decoding. Normally this returns fixed tables from inffixed.h. + If BUILDFIXED is defined, then instead this routine builds the tables the + first time it's called, and returns those tables the first time and + thereafter. This reduces the size of the code by about 2K bytes, in + exchange for a little execution time. However, BUILDFIXED should not be + used for threaded applications, since the rewriting of the tables and virgin + may not be thread-safe. + */ +local void fixedtables(state) +struct inflate_state FAR *state; +{ +#ifdef BUILDFIXED + static int virgin = 1; + static code *lenfix, *distfix; + static code fixed[544]; + + /* build fixed huffman tables if first call (may not be thread safe) */ + if (virgin) { + unsigned sym, bits; + static code *next; + + /* literal/length table */ + sym = 0; + while (sym < 144) state->lens[sym++] = 8; + while (sym < 256) state->lens[sym++] = 9; + while (sym < 280) state->lens[sym++] = 7; + while (sym < 288) state->lens[sym++] = 8; + next = fixed; + lenfix = next; + bits = 9; + inflate_table(LENS, state->lens, 288, &(next), &(bits), state->work); + + /* distance table */ + sym = 0; + while (sym < 32) state->lens[sym++] = 5; + distfix = next; + bits = 5; + inflate_table(DISTS, state->lens, 32, &(next), &(bits), state->work); + + /* do this just once */ + virgin = 0; + } +#else /* !BUILDFIXED */ +# include "inffixed.h" +#endif /* BUILDFIXED */ + state->lencode = lenfix; + state->lenbits = 9; + state->distcode = distfix; + state->distbits = 5; +} + +#ifdef MAKEFIXED +#include + +/* + Write out the inffixed.h that is #include'd above. Defining MAKEFIXED also + defines BUILDFIXED, so the tables are built on the fly. makefixed() writes + those tables to stdout, which would be piped to inffixed.h. A small program + can simply call makefixed to do this: + + void makefixed(void); + + int main(void) + { + makefixed(); + return 0; + } + + Then that can be linked with zlib built with MAKEFIXED defined and run: + + a.out > inffixed.h + */ +void makefixed() +{ + unsigned low, size; + struct inflate_state state; + + fixedtables(&state); + puts(" /* inffixed.h -- table for decoding fixed codes"); + puts(" * Generated automatically by makefixed()."); + puts(" */"); + puts(""); + puts(" /* WARNING: this file should *not* be used by applications."); + puts(" It is part of the implementation of this library and is"); + puts(" subject to change. Applications should only use zlib.h."); + puts(" */"); + puts(""); + size = 1U << 9; + printf(" static const code lenfix[%u] = {", size); + low = 0; + for (;;) { + if ((low % 7) == 0) printf("\n "); + printf("{%u,%u,%d}", state.lencode[low].op, state.lencode[low].bits, + state.lencode[low].val); + if (++low == size) break; + putchar(','); + } + puts("\n };"); + size = 1U << 5; + printf("\n static const code distfix[%u] = {", size); + low = 0; + for (;;) { + if ((low % 6) == 0) printf("\n "); + printf("{%u,%u,%d}", state.distcode[low].op, state.distcode[low].bits, + state.distcode[low].val); + if (++low == size) break; + putchar(','); + } + puts("\n };"); +} +#endif /* MAKEFIXED */ + +/* + Update the window with the last wsize (normally 32K) bytes written before + returning. If window does not exist yet, create it. This is only called + when a window is already in use, or when output has been written during this + inflate call, but the end of the deflate stream has not been reached yet. + It is also called to create a window for dictionary data when a dictionary + is loaded. + + Providing output buffers larger than 32K to inflate() should provide a speed + advantage, since only the last 32K of output is copied to the sliding window + upon return from inflate(), and since all distances after the first 32K of + output will fall in the output data, making match copies simpler and faster. + The advantage may be dependent on the size of the processor's data caches. + */ +local int updatewindow(strm, out) +z_streamp strm; +unsigned out; +{ + struct inflate_state FAR *state; + unsigned copy, dist; + + state = (struct inflate_state FAR *)strm->state; + + /* if it hasn't been done already, allocate space for the window */ + if (state->window == Z_NULL) { + state->window = (unsigned char FAR *) + ZALLOC(strm, 1U << state->wbits, + sizeof(unsigned char)); + if (state->window == Z_NULL) return 1; + } + + /* if window not in use yet, initialize */ + if (state->wsize == 0) { + state->wsize = 1U << state->wbits; + state->wnext = 0; + state->whave = 0; + } + + /* copy state->wsize or less output bytes into the circular window */ + copy = out - strm->avail_out; + if (copy >= state->wsize) { + zmemcpy(state->window, strm->next_out - state->wsize, state->wsize); + state->wnext = 0; + state->whave = state->wsize; + } + else { + dist = state->wsize - state->wnext; + if (dist > copy) dist = copy; + zmemcpy(state->window + state->wnext, strm->next_out - copy, dist); + copy -= dist; + if (copy) { + zmemcpy(state->window, strm->next_out - copy, copy); + state->wnext = copy; + state->whave = state->wsize; + } + else { + state->wnext += dist; + if (state->wnext == state->wsize) state->wnext = 0; + if (state->whave < state->wsize) state->whave += dist; + } + } + return 0; +} + +/* Macros for inflate(): */ + +/* check function to use adler32() for zlib or crc32() for gzip */ +#ifdef GUNZIP +# define UPDATE(check, buf, len) \ + (state->flags ? crc32(check, buf, len) : adler32(check, buf, len)) +#else +# define UPDATE(check, buf, len) adler32(check, buf, len) +#endif + +/* check macros for header crc */ +#ifdef GUNZIP +# define CRC2(check, word) \ + do { \ + hbuf[0] = (unsigned char)(word); \ + hbuf[1] = (unsigned char)((word) >> 8); \ + check = crc32(check, hbuf, 2); \ + } while (0) + +# define CRC4(check, word) \ + do { \ + hbuf[0] = (unsigned char)(word); \ + hbuf[1] = (unsigned char)((word) >> 8); \ + hbuf[2] = (unsigned char)((word) >> 16); \ + hbuf[3] = (unsigned char)((word) >> 24); \ + check = crc32(check, hbuf, 4); \ + } while (0) +#endif + +/* Load registers with state in inflate() for speed */ +#define LOAD() \ + do { \ + put = strm->next_out; \ + left = strm->avail_out; \ + next = strm->next_in; \ + have = strm->avail_in; \ + hold = state->hold; \ + bits = state->bits; \ + } while (0) + +/* Restore state from registers in inflate() */ +#define RESTORE() \ + do { \ + strm->next_out = put; \ + strm->avail_out = left; \ + strm->next_in = next; \ + strm->avail_in = have; \ + state->hold = hold; \ + state->bits = bits; \ + } while (0) + +/* Clear the input bit accumulator */ +#define INITBITS() \ + do { \ + hold = 0; \ + bits = 0; \ + } while (0) + +/* Get a byte of input into the bit accumulator, or return from inflate() + if there is no input available. */ +#define PULLBYTE() \ + do { \ + if (have == 0) goto inf_leave; \ + have--; \ + hold += (unsigned long)(*next++) << bits; \ + bits += 8; \ + } while (0) + +/* Assure that there are at least n bits in the bit accumulator. If there is + not enough available input to do that, then return from inflate(). */ +#define NEEDBITS(n) \ + do { \ + while (bits < (unsigned)(n)) \ + PULLBYTE(); \ + } while (0) + +/* Return the low n bits of the bit accumulator (n < 16) */ +#define BITS(n) \ + ((unsigned)hold & ((1U << (n)) - 1)) + +/* Remove n bits from the bit accumulator */ +#define DROPBITS(n) \ + do { \ + hold >>= (n); \ + bits -= (unsigned)(n); \ + } while (0) + +/* Remove zero to seven bits as needed to go to a byte boundary */ +#define BYTEBITS() \ + do { \ + hold >>= bits & 7; \ + bits -= bits & 7; \ + } while (0) + +/* Reverse the bytes in a 32-bit value */ +#define REVERSE(q) \ + ((((q) >> 24) & 0xff) + (((q) >> 8) & 0xff00) + \ + (((q) & 0xff00) << 8) + (((q) & 0xff) << 24)) + +/* + inflate() uses a state machine to process as much input data and generate as + much output data as possible before returning. The state machine is + structured roughly as follows: + + for (;;) switch (state) { + ... + case STATEn: + if (not enough input data or output space to make progress) + return; + ... make progress ... + state = STATEm; + break; + ... + } + + so when inflate() is called again, the same case is attempted again, and + if the appropriate resources are provided, the machine proceeds to the + next state. The NEEDBITS() macro is usually the way the state evaluates + whether it can proceed or should return. NEEDBITS() does the return if + the requested bits are not available. The typical use of the BITS macros + is: + + NEEDBITS(n); + ... do something with BITS(n) ... + DROPBITS(n); + + where NEEDBITS(n) either returns from inflate() if there isn't enough + input left to load n bits into the accumulator, or it continues. BITS(n) + gives the low n bits in the accumulator. When done, DROPBITS(n) drops + the low n bits off the accumulator. INITBITS() clears the accumulator + and sets the number of available bits to zero. BYTEBITS() discards just + enough bits to put the accumulator on a byte boundary. After BYTEBITS() + and a NEEDBITS(8), then BITS(8) would return the next byte in the stream. + + NEEDBITS(n) uses PULLBYTE() to get an available byte of input, or to return + if there is no input available. The decoding of variable length codes uses + PULLBYTE() directly in order to pull just enough bytes to decode the next + code, and no more. + + Some states loop until they get enough input, making sure that enough + state information is maintained to continue the loop where it left off + if NEEDBITS() returns in the loop. For example, want, need, and keep + would all have to actually be part of the saved state in case NEEDBITS() + returns: + + case STATEw: + while (want < need) { + NEEDBITS(n); + keep[want++] = BITS(n); + DROPBITS(n); + } + state = STATEx; + case STATEx: + + As shown above, if the next state is also the next case, then the break + is omitted. + + A state may also return if there is not enough output space available to + complete that state. Those states are copying stored data, writing a + literal byte, and copying a matching string. + + When returning, a "goto inf_leave" is used to update the total counters, + update the check value, and determine whether any progress has been made + during that inflate() call in order to return the proper return code. + Progress is defined as a change in either strm->avail_in or strm->avail_out. + When there is a window, goto inf_leave will update the window with the last + output written. If a goto inf_leave occurs in the middle of decompression + and there is no window currently, goto inf_leave will create one and copy + output to the window for the next call of inflate(). + + In this implementation, the flush parameter of inflate() only affects the + return code (per zlib.h). inflate() always writes as much as possible to + strm->next_out, given the space available and the provided input--the effect + documented in zlib.h of Z_SYNC_FLUSH. Furthermore, inflate() always defers + the allocation of and copying into a sliding window until necessary, which + provides the effect documented in zlib.h for Z_FINISH when the entire input + stream available. So the only thing the flush parameter actually does is: + when flush is set to Z_FINISH, inflate() cannot return Z_OK. Instead it + will return Z_BUF_ERROR if it has not reached the end of the stream. + */ + +int ZEXPORT inflate(strm, flush) +z_streamp strm; +int flush; +{ + struct inflate_state FAR *state; + unsigned char FAR *next; /* next input */ + unsigned char FAR *put; /* next output */ + unsigned have, left; /* available input and output */ + unsigned long hold; /* bit buffer */ + unsigned bits; /* bits in bit buffer */ + unsigned in, out; /* save starting available input and output */ + unsigned copy; /* number of stored or match bytes to copy */ + unsigned char FAR *from; /* where to copy match bytes from */ + code here; /* current decoding table entry */ + code last; /* parent table entry */ + unsigned len; /* length to copy for repeats, bits to drop */ + int ret; /* return code */ +#ifdef GUNZIP + unsigned char hbuf[4]; /* buffer for gzip header crc calculation */ +#endif + static const unsigned short order[19] = /* permutation of code lengths */ + {16, 17, 18, 0, 8, 7, 9, 6, 10, 5, 11, 4, 12, 3, 13, 2, 14, 1, 15}; + + if (strm == Z_NULL || strm->state == Z_NULL || strm->next_out == Z_NULL || + (strm->next_in == Z_NULL && strm->avail_in != 0)) + return Z_STREAM_ERROR; + + state = (struct inflate_state FAR *)strm->state; + if (state->mode == TYPE) state->mode = TYPEDO; /* skip check */ + LOAD(); + in = have; + out = left; + ret = Z_OK; + for (;;) + switch (state->mode) { + case HEAD: + if (state->wrap == 0) { + state->mode = TYPEDO; + break; + } + NEEDBITS(16); +#ifdef GUNZIP + if ((state->wrap & 2) && hold == 0x8b1f) { /* gzip header */ + state->check = crc32(0L, Z_NULL, 0); + CRC2(state->check, hold); + INITBITS(); + state->mode = FLAGS; + break; + } + state->flags = 0; /* expect zlib header */ + if (state->head != Z_NULL) + state->head->done = -1; + if (!(state->wrap & 1) || /* check if zlib header allowed */ +#else + if ( +#endif + ((BITS(8) << 8) + (hold >> 8)) % 31) { + strm->msg = (char *)"incorrect header check"; + state->mode = BAD; + break; + } + if (BITS(4) != Z_DEFLATED) { + strm->msg = (char *)"unknown compression method"; + state->mode = BAD; + break; + } + DROPBITS(4); + len = BITS(4) + 8; + if (state->wbits == 0) + state->wbits = len; + else if (len > state->wbits) { + strm->msg = (char *)"invalid window size"; + state->mode = BAD; + break; + } + state->dmax = 1U << len; + Tracev((stderr, "inflate: zlib header ok\n")); + strm->adler = state->check = adler32(0L, Z_NULL, 0); + state->mode = hold & 0x200 ? DICTID : TYPE; + INITBITS(); + break; +#ifdef GUNZIP + case FLAGS: + NEEDBITS(16); + state->flags = (int)(hold); + if ((state->flags & 0xff) != Z_DEFLATED) { + strm->msg = (char *)"unknown compression method"; + state->mode = BAD; + break; + } + if (state->flags & 0xe000) { + strm->msg = (char *)"unknown header flags set"; + state->mode = BAD; + break; + } + if (state->head != Z_NULL) + state->head->text = (int)((hold >> 8) & 1); + if (state->flags & 0x0200) CRC2(state->check, hold); + INITBITS(); + state->mode = TIME; + case TIME: + NEEDBITS(32); + if (state->head != Z_NULL) + state->head->time = hold; + if (state->flags & 0x0200) CRC4(state->check, hold); + INITBITS(); + state->mode = OS; + case OS: + NEEDBITS(16); + if (state->head != Z_NULL) { + state->head->xflags = (int)(hold & 0xff); + state->head->os = (int)(hold >> 8); + } + if (state->flags & 0x0200) CRC2(state->check, hold); + INITBITS(); + state->mode = EXLEN; + case EXLEN: + if (state->flags & 0x0400) { + NEEDBITS(16); + state->length = (unsigned)(hold); + if (state->head != Z_NULL) + state->head->extra_len = (unsigned)hold; + if (state->flags & 0x0200) CRC2(state->check, hold); + INITBITS(); + } + else if (state->head != Z_NULL) + state->head->extra = Z_NULL; + state->mode = EXTRA; + case EXTRA: + if (state->flags & 0x0400) { + copy = state->length; + if (copy > have) copy = have; + if (copy) { + if (state->head != Z_NULL && + state->head->extra != Z_NULL) { + len = state->head->extra_len - state->length; + zmemcpy(state->head->extra + len, next, + len + copy > state->head->extra_max ? + state->head->extra_max - len : copy); + } + if (state->flags & 0x0200) + state->check = crc32(state->check, next, copy); + have -= copy; + next += copy; + state->length -= copy; + } + if (state->length) goto inf_leave; + } + state->length = 0; + state->mode = NAME; + case NAME: + if (state->flags & 0x0800) { + if (have == 0) goto inf_leave; + copy = 0; + do { + len = (unsigned)(next[copy++]); + if (state->head != Z_NULL && + state->head->name != Z_NULL && + state->length < state->head->name_max) + state->head->name[state->length++] = len; + } while (len && copy < have); + if (state->flags & 0x0200) + state->check = crc32(state->check, next, copy); + have -= copy; + next += copy; + if (len) goto inf_leave; + } + else if (state->head != Z_NULL) + state->head->name = Z_NULL; + state->length = 0; + state->mode = COMMENT; + case COMMENT: + if (state->flags & 0x1000) { + if (have == 0) goto inf_leave; + copy = 0; + do { + len = (unsigned)(next[copy++]); + if (state->head != Z_NULL && + state->head->comment != Z_NULL && + state->length < state->head->comm_max) + state->head->comment[state->length++] = len; + } while (len && copy < have); + if (state->flags & 0x0200) + state->check = crc32(state->check, next, copy); + have -= copy; + next += copy; + if (len) goto inf_leave; + } + else if (state->head != Z_NULL) + state->head->comment = Z_NULL; + state->mode = HCRC; + case HCRC: + if (state->flags & 0x0200) { + NEEDBITS(16); + if (hold != (state->check & 0xffff)) { + strm->msg = (char *)"header crc mismatch"; + state->mode = BAD; + break; + } + INITBITS(); + } + if (state->head != Z_NULL) { + state->head->hcrc = (int)((state->flags >> 9) & 1); + state->head->done = 1; + } + strm->adler = state->check = crc32(0L, Z_NULL, 0); + state->mode = TYPE; + break; +#endif + case DICTID: + NEEDBITS(32); + strm->adler = state->check = REVERSE(hold); + INITBITS(); + state->mode = DICT; + case DICT: + if (state->havedict == 0) { + RESTORE(); + return Z_NEED_DICT; + } + strm->adler = state->check = adler32(0L, Z_NULL, 0); + state->mode = TYPE; + case TYPE: + if (flush == Z_BLOCK || flush == Z_TREES) goto inf_leave; + case TYPEDO: + if (state->last) { + BYTEBITS(); + state->mode = CHECK; + break; + } + NEEDBITS(3); + state->last = BITS(1); + DROPBITS(1); + switch (BITS(2)) { + case 0: /* stored block */ + Tracev((stderr, "inflate: stored block%s\n", + state->last ? " (last)" : "")); + state->mode = STORED; + break; + case 1: /* fixed block */ + fixedtables(state); + Tracev((stderr, "inflate: fixed codes block%s\n", + state->last ? " (last)" : "")); + state->mode = LEN_; /* decode codes */ + if (flush == Z_TREES) { + DROPBITS(2); + goto inf_leave; + } + break; + case 2: /* dynamic block */ + Tracev((stderr, "inflate: dynamic codes block%s\n", + state->last ? " (last)" : "")); + state->mode = TABLE; + break; + case 3: + strm->msg = (char *)"invalid block type"; + state->mode = BAD; + } + DROPBITS(2); + break; + case STORED: + BYTEBITS(); /* go to byte boundary */ + NEEDBITS(32); + if ((hold & 0xffff) != ((hold >> 16) ^ 0xffff)) { + strm->msg = (char *)"invalid stored block lengths"; + state->mode = BAD; + break; + } + state->length = (unsigned)hold & 0xffff; + Tracev((stderr, "inflate: stored length %u\n", + state->length)); + INITBITS(); + state->mode = COPY_; + if (flush == Z_TREES) goto inf_leave; + case COPY_: + state->mode = COPY; + case COPY: + copy = state->length; + if (copy) { + if (copy > have) copy = have; + if (copy > left) copy = left; + if (copy == 0) goto inf_leave; + zmemcpy(put, next, copy); + have -= copy; + next += copy; + left -= copy; + put += copy; + state->length -= copy; + break; + } + Tracev((stderr, "inflate: stored end\n")); + state->mode = TYPE; + break; + case TABLE: + NEEDBITS(14); + state->nlen = BITS(5) + 257; + DROPBITS(5); + state->ndist = BITS(5) + 1; + DROPBITS(5); + state->ncode = BITS(4) + 4; + DROPBITS(4); +#ifndef PKZIP_BUG_WORKAROUND + if (state->nlen > 286 || state->ndist > 30) { + strm->msg = (char *)"too many length or distance symbols"; + state->mode = BAD; + break; + } +#endif + Tracev((stderr, "inflate: table sizes ok\n")); + state->have = 0; + state->mode = LENLENS; + case LENLENS: + while (state->have < state->ncode) { + NEEDBITS(3); + state->lens[order[state->have++]] = (unsigned short)BITS(3); + DROPBITS(3); + } + while (state->have < 19) + state->lens[order[state->have++]] = 0; + state->next = state->codes; + state->lencode = (code const FAR *)(state->next); + state->lenbits = 7; + ret = inflate_table(CODES, state->lens, 19, &(state->next), + &(state->lenbits), state->work); + if (ret) { + strm->msg = (char *)"invalid code lengths set"; + state->mode = BAD; + break; + } + Tracev((stderr, "inflate: code lengths ok\n")); + state->have = 0; + state->mode = CODELENS; + case CODELENS: + while (state->have < state->nlen + state->ndist) { + for (;;) { + here = state->lencode[BITS(state->lenbits)]; + if ((unsigned)(here.bits) <= bits) break; + PULLBYTE(); + } + if (here.val < 16) { + NEEDBITS(here.bits); + DROPBITS(here.bits); + state->lens[state->have++] = here.val; + } + else { + if (here.val == 16) { + NEEDBITS(here.bits + 2); + DROPBITS(here.bits); + if (state->have == 0) { + strm->msg = (char *)"invalid bit length repeat"; + state->mode = BAD; + break; + } + len = state->lens[state->have - 1]; + copy = 3 + BITS(2); + DROPBITS(2); + } + else if (here.val == 17) { + NEEDBITS(here.bits + 3); + DROPBITS(here.bits); + len = 0; + copy = 3 + BITS(3); + DROPBITS(3); + } + else { + NEEDBITS(here.bits + 7); + DROPBITS(here.bits); + len = 0; + copy = 11 + BITS(7); + DROPBITS(7); + } + if (state->have + copy > state->nlen + state->ndist) { + strm->msg = (char *)"invalid bit length repeat"; + state->mode = BAD; + break; + } + while (copy--) + state->lens[state->have++] = (unsigned short)len; + } + } + + /* handle error breaks in while */ + if (state->mode == BAD) break; + + /* check for end-of-block code (better have one) */ + if (state->lens[256] == 0) { + strm->msg = (char *)"invalid code -- missing end-of-block"; + state->mode = BAD; + break; + } + + /* build code tables -- note: do not change the lenbits or distbits + values here (9 and 6) without reading the comments in inftrees.h + concerning the ENOUGH constants, which depend on those values */ + state->next = state->codes; + state->lencode = (code const FAR *)(state->next); + state->lenbits = 9; + ret = inflate_table(LENS, state->lens, state->nlen, &(state->next), + &(state->lenbits), state->work); + if (ret) { + strm->msg = (char *)"invalid literal/lengths set"; + state->mode = BAD; + break; + } + state->distcode = (code const FAR *)(state->next); + state->distbits = 6; + ret = inflate_table(DISTS, state->lens + state->nlen, state->ndist, + &(state->next), &(state->distbits), state->work); + if (ret) { + strm->msg = (char *)"invalid distances set"; + state->mode = BAD; + break; + } + Tracev((stderr, "inflate: codes ok\n")); + state->mode = LEN_; + if (flush == Z_TREES) goto inf_leave; + case LEN_: + state->mode = LEN; + case LEN: + if (have >= 6 && left >= 258) { + RESTORE(); + inflate_fast(strm, out); + LOAD(); + if (state->mode == TYPE) + state->back = -1; + break; + } + state->back = 0; + for (;;) { + here = state->lencode[BITS(state->lenbits)]; + if ((unsigned)(here.bits) <= bits) break; + PULLBYTE(); + } + if (here.op && (here.op & 0xf0) == 0) { + last = here; + for (;;) { + here = state->lencode[last.val + + (BITS(last.bits + last.op) >> last.bits)]; + if ((unsigned)(last.bits + here.bits) <= bits) break; + PULLBYTE(); + } + DROPBITS(last.bits); + state->back += last.bits; + } + DROPBITS(here.bits); + state->back += here.bits; + state->length = (unsigned)here.val; + if ((int)(here.op) == 0) { + Tracevv((stderr, here.val >= 0x20 && here.val < 0x7f ? + "inflate: literal '%c'\n" : + "inflate: literal 0x%02x\n", here.val)); + state->mode = LIT; + break; + } + if (here.op & 32) { + Tracevv((stderr, "inflate: end of block\n")); + state->back = -1; + state->mode = TYPE; + break; + } + if (here.op & 64) { + strm->msg = (char *)"invalid literal/length code"; + state->mode = BAD; + break; + } + state->extra = (unsigned)(here.op) & 15; + state->mode = LENEXT; + case LENEXT: + if (state->extra) { + NEEDBITS(state->extra); + state->length += BITS(state->extra); + DROPBITS(state->extra); + state->back += state->extra; + } + Tracevv((stderr, "inflate: length %u\n", state->length)); + state->was = state->length; + state->mode = DIST; + case DIST: + for (;;) { + here = state->distcode[BITS(state->distbits)]; + if ((unsigned)(here.bits) <= bits) break; + PULLBYTE(); + } + if ((here.op & 0xf0) == 0) { + last = here; + for (;;) { + here = state->distcode[last.val + + (BITS(last.bits + last.op) >> last.bits)]; + if ((unsigned)(last.bits + here.bits) <= bits) break; + PULLBYTE(); + } + DROPBITS(last.bits); + state->back += last.bits; + } + DROPBITS(here.bits); + state->back += here.bits; + if (here.op & 64) { + strm->msg = (char *)"invalid distance code"; + state->mode = BAD; + break; + } + state->offset = (unsigned)here.val; + state->extra = (unsigned)(here.op) & 15; + state->mode = DISTEXT; + case DISTEXT: + if (state->extra) { + NEEDBITS(state->extra); + state->offset += BITS(state->extra); + DROPBITS(state->extra); + state->back += state->extra; + } +#ifdef INFLATE_STRICT + if (state->offset > state->dmax) { + strm->msg = (char *)"invalid distance too far back"; + state->mode = BAD; + break; + } +#endif + Tracevv((stderr, "inflate: distance %u\n", state->offset)); + state->mode = MATCH; + case MATCH: + if (left == 0) goto inf_leave; + copy = out - left; + if (state->offset > copy) { /* copy from window */ + copy = state->offset - copy; + if (copy > state->whave) { + if (state->sane) { + strm->msg = (char *)"invalid distance too far back"; + state->mode = BAD; + break; + } +#ifdef INFLATE_ALLOW_INVALID_DISTANCE_TOOFAR_ARRR + Trace((stderr, "inflate.c too far\n")); + copy -= state->whave; + if (copy > state->length) copy = state->length; + if (copy > left) copy = left; + left -= copy; + state->length -= copy; + do { + *put++ = 0; + } while (--copy); + if (state->length == 0) state->mode = LEN; + break; +#endif + } + if (copy > state->wnext) { + copy -= state->wnext; + from = state->window + (state->wsize - copy); + } + else + from = state->window + (state->wnext - copy); + if (copy > state->length) copy = state->length; + } + else { /* copy from output */ + from = put - state->offset; + copy = state->length; + } + if (copy > left) copy = left; + left -= copy; + state->length -= copy; + do { + *put++ = *from++; + } while (--copy); + if (state->length == 0) state->mode = LEN; + break; + case LIT: + if (left == 0) goto inf_leave; + *put++ = (unsigned char)(state->length); + left--; + state->mode = LEN; + break; + case CHECK: + if (state->wrap) { + NEEDBITS(32); + out -= left; + strm->total_out += out; + state->total += out; + if (out) + strm->adler = state->check = + UPDATE(state->check, put - out, out); + out = left; + if (( +#ifdef GUNZIP + state->flags ? hold : +#endif + REVERSE(hold)) != state->check) { + strm->msg = (char *)"incorrect data check"; + state->mode = BAD; + break; + } + INITBITS(); + Tracev((stderr, "inflate: check matches trailer\n")); + } +#ifdef GUNZIP + state->mode = LENGTH; + case LENGTH: + if (state->wrap && state->flags) { + NEEDBITS(32); + if (hold != (state->total & 0xffffffffUL)) { + strm->msg = (char *)"incorrect length check"; + state->mode = BAD; + break; + } + INITBITS(); + Tracev((stderr, "inflate: length matches trailer\n")); + } +#endif + state->mode = DONE; + case DONE: + ret = Z_STREAM_END; + goto inf_leave; + case BAD: + ret = Z_DATA_ERROR; + goto inf_leave; + case MEM: + return Z_MEM_ERROR; + case SYNC: + default: + return Z_STREAM_ERROR; + } + + /* + Return from inflate(), updating the total counts and the check value. + If there was no progress during the inflate() call, return a buffer + error. Call updatewindow() to create and/or update the window state. + Note: a memory error from inflate() is non-recoverable. + */ + inf_leave: + RESTORE(); + if (state->wsize || (state->mode < CHECK && out != strm->avail_out)) + if (updatewindow(strm, out)) { + state->mode = MEM; + return Z_MEM_ERROR; + } + in -= strm->avail_in; + out -= strm->avail_out; + strm->total_in += in; + strm->total_out += out; + state->total += out; + if (state->wrap && out) + strm->adler = state->check = + UPDATE(state->check, strm->next_out - out, out); + strm->data_type = state->bits + (state->last ? 64 : 0) + + (state->mode == TYPE ? 128 : 0) + + (state->mode == LEN_ || state->mode == COPY_ ? 256 : 0); + if (((in == 0 && out == 0) || flush == Z_FINISH) && ret == Z_OK) + ret = Z_BUF_ERROR; + return ret; +} + +int ZEXPORT inflateEnd(strm) +z_streamp strm; +{ + struct inflate_state FAR *state; + if (strm == Z_NULL || strm->state == Z_NULL || strm->zfree == (free_func)0) + return Z_STREAM_ERROR; + state = (struct inflate_state FAR *)strm->state; + if (state->window != Z_NULL) ZFREE(strm, state->window); + ZFREE(strm, strm->state); + strm->state = Z_NULL; + Tracev((stderr, "inflate: end\n")); + return Z_OK; +} + +int ZEXPORT inflateSetDictionary(strm, dictionary, dictLength) +z_streamp strm; +const Bytef *dictionary; +uInt dictLength; +{ + struct inflate_state FAR *state; + unsigned long id; + + /* check state */ + if (strm == Z_NULL || strm->state == Z_NULL) return Z_STREAM_ERROR; + state = (struct inflate_state FAR *)strm->state; + if (state->wrap != 0 && state->mode != DICT) + return Z_STREAM_ERROR; + + /* check for correct dictionary id */ + if (state->mode == DICT) { + id = adler32(0L, Z_NULL, 0); + id = adler32(id, dictionary, dictLength); + if (id != state->check) + return Z_DATA_ERROR; + } + + /* copy dictionary to window */ + if (updatewindow(strm, strm->avail_out)) { + state->mode = MEM; + return Z_MEM_ERROR; + } + if (dictLength > state->wsize) { + zmemcpy(state->window, dictionary + dictLength - state->wsize, + state->wsize); + state->whave = state->wsize; + } + else { + zmemcpy(state->window + state->wsize - dictLength, dictionary, + dictLength); + state->whave = dictLength; + } + state->havedict = 1; + Tracev((stderr, "inflate: dictionary set\n")); + return Z_OK; +} + +int ZEXPORT inflateGetHeader(strm, head) +z_streamp strm; +gz_headerp head; +{ + struct inflate_state FAR *state; + + /* check state */ + if (strm == Z_NULL || strm->state == Z_NULL) return Z_STREAM_ERROR; + state = (struct inflate_state FAR *)strm->state; + if ((state->wrap & 2) == 0) return Z_STREAM_ERROR; + + /* save header structure */ + state->head = head; + head->done = 0; + return Z_OK; +} + +/* + Search buf[0..len-1] for the pattern: 0, 0, 0xff, 0xff. Return when found + or when out of input. When called, *have is the number of pattern bytes + found in order so far, in 0..3. On return *have is updated to the new + state. If on return *have equals four, then the pattern was found and the + return value is how many bytes were read including the last byte of the + pattern. If *have is less than four, then the pattern has not been found + yet and the return value is len. In the latter case, syncsearch() can be + called again with more data and the *have state. *have is initialized to + zero for the first call. + */ +local unsigned syncsearch(have, buf, len) +unsigned FAR *have; +unsigned char FAR *buf; +unsigned len; +{ + unsigned got; + unsigned next; + + got = *have; + next = 0; + while (next < len && got < 4) { + if ((int)(buf[next]) == (got < 2 ? 0 : 0xff)) + got++; + else if (buf[next]) + got = 0; + else + got = 4 - got; + next++; + } + *have = got; + return next; +} + +int ZEXPORT inflateSync(strm) +z_streamp strm; +{ + unsigned len; /* number of bytes to look at or looked at */ + unsigned long in, out; /* temporary to save total_in and total_out */ + unsigned char buf[4]; /* to restore bit buffer to byte string */ + struct inflate_state FAR *state; + + /* check parameters */ + if (strm == Z_NULL || strm->state == Z_NULL) return Z_STREAM_ERROR; + state = (struct inflate_state FAR *)strm->state; + if (strm->avail_in == 0 && state->bits < 8) return Z_BUF_ERROR; + + /* if first time, start search in bit buffer */ + if (state->mode != SYNC) { + state->mode = SYNC; + state->hold <<= state->bits & 7; + state->bits -= state->bits & 7; + len = 0; + while (state->bits >= 8) { + buf[len++] = (unsigned char)(state->hold); + state->hold >>= 8; + state->bits -= 8; + } + state->have = 0; + syncsearch(&(state->have), buf, len); + } + + /* search available input */ + len = syncsearch(&(state->have), strm->next_in, strm->avail_in); + strm->avail_in -= len; + strm->next_in += len; + strm->total_in += len; + + /* return no joy or set up to restart inflate() on a new block */ + if (state->have != 4) return Z_DATA_ERROR; + in = strm->total_in; out = strm->total_out; + inflateReset(strm); + strm->total_in = in; strm->total_out = out; + state->mode = TYPE; + return Z_OK; +} + +/* + Returns true if inflate is currently at the end of a block generated by + Z_SYNC_FLUSH or Z_FULL_FLUSH. This function is used by one PPP + implementation to provide an additional safety check. PPP uses + Z_SYNC_FLUSH but removes the length bytes of the resulting empty stored + block. When decompressing, PPP checks that at the end of input packet, + inflate is waiting for these length bytes. + */ +int ZEXPORT inflateSyncPoint(strm) +z_streamp strm; +{ + struct inflate_state FAR *state; + + if (strm == Z_NULL || strm->state == Z_NULL) return Z_STREAM_ERROR; + state = (struct inflate_state FAR *)strm->state; + return state->mode == STORED && state->bits == 0; +} + +int ZEXPORT inflateCopy(dest, source) +z_streamp dest; +z_streamp source; +{ + struct inflate_state FAR *state; + struct inflate_state FAR *copy; + unsigned char FAR *window; + unsigned wsize; + + /* check input */ + if (dest == Z_NULL || source == Z_NULL || source->state == Z_NULL || + source->zalloc == (alloc_func)0 || source->zfree == (free_func)0) + return Z_STREAM_ERROR; + state = (struct inflate_state FAR *)source->state; + + /* allocate space */ + copy = (struct inflate_state FAR *) + ZALLOC(source, 1, sizeof(struct inflate_state)); + if (copy == Z_NULL) return Z_MEM_ERROR; + window = Z_NULL; + if (state->window != Z_NULL) { + window = (unsigned char FAR *) + ZALLOC(source, 1U << state->wbits, sizeof(unsigned char)); + if (window == Z_NULL) { + ZFREE(source, copy); + return Z_MEM_ERROR; + } + } + + /* copy state */ + zmemcpy(dest, source, sizeof(z_stream)); + zmemcpy(copy, state, sizeof(struct inflate_state)); + if (state->lencode >= state->codes && + state->lencode <= state->codes + ENOUGH - 1) { + copy->lencode = copy->codes + (state->lencode - state->codes); + copy->distcode = copy->codes + (state->distcode - state->codes); + } + copy->next = copy->codes + (state->next - state->codes); + if (window != Z_NULL) { + wsize = 1U << state->wbits; + zmemcpy(window, state->window, wsize); + } + copy->window = window; + dest->state = (struct internal_state FAR *)copy; + return Z_OK; +} + +int ZEXPORT inflateUndermine(strm, subvert) +z_streamp strm; +int subvert; +{ + struct inflate_state FAR *state; + + if (strm == Z_NULL || strm->state == Z_NULL) return Z_STREAM_ERROR; + state = (struct inflate_state FAR *)strm->state; + state->sane = !subvert; +#ifdef INFLATE_ALLOW_INVALID_DISTANCE_TOOFAR_ARRR + return Z_OK; +#else + state->sane = 1; + return Z_DATA_ERROR; +#endif +} + +long ZEXPORT inflateMark(strm) +z_streamp strm; +{ + struct inflate_state FAR *state; + + if (strm == Z_NULL || strm->state == Z_NULL) return -1L << 16; + state = (struct inflate_state FAR *)strm->state; + return ((long)(state->back) << 16) + + (state->mode == COPY ? state->length : + (state->mode == MATCH ? state->was - state->length : 0)); +} diff --git a/zlib/inflate.h b/zlib/inflate.h new file mode 100644 index 0000000..95f4986 --- /dev/null +++ b/zlib/inflate.h @@ -0,0 +1,122 @@ +/* inflate.h -- internal inflate state definition + * Copyright (C) 1995-2009 Mark Adler + * For conditions of distribution and use, see copyright notice in zlib.h + */ + +/* WARNING: this file should *not* be used by applications. It is + part of the implementation of the compression library and is + subject to change. Applications should only use zlib.h. + */ + +/* define NO_GZIP when compiling if you want to disable gzip header and + trailer decoding by inflate(). NO_GZIP would be used to avoid linking in + the crc code when it is not needed. For shared libraries, gzip decoding + should be left enabled. */ +#ifndef NO_GZIP +# define GUNZIP +#endif + +/* Possible inflate modes between inflate() calls */ +typedef enum { + HEAD, /* i: waiting for magic header */ + FLAGS, /* i: waiting for method and flags (gzip) */ + TIME, /* i: waiting for modification time (gzip) */ + OS, /* i: waiting for extra flags and operating system (gzip) */ + EXLEN, /* i: waiting for extra length (gzip) */ + EXTRA, /* i: waiting for extra bytes (gzip) */ + NAME, /* i: waiting for end of file name (gzip) */ + COMMENT, /* i: waiting for end of comment (gzip) */ + HCRC, /* i: waiting for header crc (gzip) */ + DICTID, /* i: waiting for dictionary check value */ + DICT, /* waiting for inflateSetDictionary() call */ + TYPE, /* i: waiting for type bits, including last-flag bit */ + TYPEDO, /* i: same, but skip check to exit inflate on new block */ + STORED, /* i: waiting for stored size (length and complement) */ + COPY_, /* i/o: same as COPY below, but only first time in */ + COPY, /* i/o: waiting for input or output to copy stored block */ + TABLE, /* i: waiting for dynamic block table lengths */ + LENLENS, /* i: waiting for code length code lengths */ + CODELENS, /* i: waiting for length/lit and distance code lengths */ + LEN_, /* i: same as LEN below, but only first time in */ + LEN, /* i: waiting for length/lit/eob code */ + LENEXT, /* i: waiting for length extra bits */ + DIST, /* i: waiting for distance code */ + DISTEXT, /* i: waiting for distance extra bits */ + MATCH, /* o: waiting for output space to copy string */ + LIT, /* o: waiting for output space to write literal */ + CHECK, /* i: waiting for 32-bit check value */ + LENGTH, /* i: waiting for 32-bit length (gzip) */ + DONE, /* finished check, done -- remain here until reset */ + BAD, /* got a data error -- remain here until reset */ + MEM, /* got an inflate() memory error -- remain here until reset */ + SYNC /* looking for synchronization bytes to restart inflate() */ +} inflate_mode; + +/* + State transitions between above modes - + + (most modes can go to BAD or MEM on error -- not shown for clarity) + + Process header: + HEAD -> (gzip) or (zlib) or (raw) + (gzip) -> FLAGS -> TIME -> OS -> EXLEN -> EXTRA -> NAME -> COMMENT -> + HCRC -> TYPE + (zlib) -> DICTID or TYPE + DICTID -> DICT -> TYPE + (raw) -> TYPEDO + Read deflate blocks: + TYPE -> TYPEDO -> STORED or TABLE or LEN_ or CHECK + STORED -> COPY_ -> COPY -> TYPE + TABLE -> LENLENS -> CODELENS -> LEN_ + LEN_ -> LEN + Read deflate codes in fixed or dynamic block: + LEN -> LENEXT or LIT or TYPE + LENEXT -> DIST -> DISTEXT -> MATCH -> LEN + LIT -> LEN + Process trailer: + CHECK -> LENGTH -> DONE + */ + +/* state maintained between inflate() calls. Approximately 10K bytes. */ +struct inflate_state { + inflate_mode mode; /* current inflate mode */ + int last; /* true if processing last block */ + int wrap; /* bit 0 true for zlib, bit 1 true for gzip */ + int havedict; /* true if dictionary provided */ + int flags; /* gzip header method and flags (0 if zlib) */ + unsigned dmax; /* zlib header max distance (INFLATE_STRICT) */ + unsigned long check; /* protected copy of check value */ + unsigned long total; /* protected copy of output count */ + gz_headerp head; /* where to save gzip header information */ + /* sliding window */ + unsigned wbits; /* log base 2 of requested window size */ + unsigned wsize; /* window size or zero if not using window */ + unsigned whave; /* valid bytes in the window */ + unsigned wnext; /* window write index */ + unsigned char FAR *window; /* allocated sliding window, if needed */ + /* bit accumulator */ + unsigned long hold; /* input bit accumulator */ + unsigned bits; /* number of bits in "in" */ + /* for string and stored block copying */ + unsigned length; /* literal or length of data to copy */ + unsigned offset; /* distance back to copy string from */ + /* for table and code decoding */ + unsigned extra; /* extra bits needed */ + /* fixed and dynamic code tables */ + code const FAR *lencode; /* starting table for length/literal codes */ + code const FAR *distcode; /* starting table for distance codes */ + unsigned lenbits; /* index bits for lencode */ + unsigned distbits; /* index bits for distcode */ + /* dynamic table building */ + unsigned ncode; /* number of code length code lengths */ + unsigned nlen; /* number of length code lengths */ + unsigned ndist; /* number of distance code lengths */ + unsigned have; /* number of code lengths in lens[] */ + code FAR *next; /* next available space in codes[] */ + unsigned short lens[320]; /* temporary storage for code lengths */ + unsigned short work[288]; /* work area for code table building */ + code codes[ENOUGH]; /* space for code tables */ + int sane; /* if false, allow invalid distance too far */ + int back; /* bits back of last unprocessed length/lit */ + unsigned was; /* initial length of match */ +}; diff --git a/zlib/inftrees.c b/zlib/inftrees.c new file mode 100644 index 0000000..11e9c52 --- /dev/null +++ b/zlib/inftrees.c @@ -0,0 +1,330 @@ +/* inftrees.c -- generate Huffman trees for efficient decoding + * Copyright (C) 1995-2010 Mark Adler + * For conditions of distribution and use, see copyright notice in zlib.h + */ + +#include "zutil.h" +#include "inftrees.h" + +#define MAXBITS 15 + +const char inflate_copyright[] = + " inflate 1.2.5 Copyright 1995-2010 Mark Adler "; +/* + If you use the zlib library in a product, an acknowledgment is welcome + in the documentation of your product. If for some reason you cannot + include such an acknowledgment, I would appreciate that you keep this + copyright string in the executable of your product. + */ + +/* + Build a set of tables to decode the provided canonical Huffman code. + The code lengths are lens[0..codes-1]. The result starts at *table, + whose indices are 0..2^bits-1. work is a writable array of at least + lens shorts, which is used as a work area. type is the type of code + to be generated, CODES, LENS, or DISTS. On return, zero is success, + -1 is an invalid code, and +1 means that ENOUGH isn't enough. table + on return points to the next available entry's address. bits is the + requested root table index bits, and on return it is the actual root + table index bits. It will differ if the request is greater than the + longest code or if it is less than the shortest code. + */ +int ZLIB_INTERNAL inflate_table(type, lens, codes, table, bits, work) +codetype type; +unsigned short FAR *lens; +unsigned codes; +code FAR * FAR *table; +unsigned FAR *bits; +unsigned short FAR *work; +{ + unsigned len; /* a code's length in bits */ + unsigned sym; /* index of code symbols */ + unsigned min, max; /* minimum and maximum code lengths */ + unsigned root; /* number of index bits for root table */ + unsigned curr; /* number of index bits for current table */ + unsigned drop; /* code bits to drop for sub-table */ + int left; /* number of prefix codes available */ + unsigned used; /* code entries in table used */ + unsigned huff; /* Huffman code */ + unsigned incr; /* for incrementing code, index */ + unsigned fill; /* index for replicating entries */ + unsigned low; /* low bits for current root entry */ + unsigned mask; /* mask for low root bits */ + code here; /* table entry for duplication */ + code FAR *next; /* next available space in table */ + const unsigned short FAR *base; /* base value table to use */ + const unsigned short FAR *extra; /* extra bits table to use */ + int end; /* use base and extra for symbol > end */ + unsigned short count[MAXBITS+1]; /* number of codes of each length */ + unsigned short offs[MAXBITS+1]; /* offsets in table for each length */ + static const unsigned short lbase[31] = { /* Length codes 257..285 base */ + 3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 15, 17, 19, 23, 27, 31, + 35, 43, 51, 59, 67, 83, 99, 115, 131, 163, 195, 227, 258, 0, 0}; + static const unsigned short lext[31] = { /* Length codes 257..285 extra */ + 16, 16, 16, 16, 16, 16, 16, 16, 17, 17, 17, 17, 18, 18, 18, 18, + 19, 19, 19, 19, 20, 20, 20, 20, 21, 21, 21, 21, 16, 73, 195}; + static const unsigned short dbase[32] = { /* Distance codes 0..29 base */ + 1, 2, 3, 4, 5, 7, 9, 13, 17, 25, 33, 49, 65, 97, 129, 193, + 257, 385, 513, 769, 1025, 1537, 2049, 3073, 4097, 6145, + 8193, 12289, 16385, 24577, 0, 0}; + static const unsigned short dext[32] = { /* Distance codes 0..29 extra */ + 16, 16, 16, 16, 17, 17, 18, 18, 19, 19, 20, 20, 21, 21, 22, 22, + 23, 23, 24, 24, 25, 25, 26, 26, 27, 27, + 28, 28, 29, 29, 64, 64}; + + /* + Process a set of code lengths to create a canonical Huffman code. The + code lengths are lens[0..codes-1]. Each length corresponds to the + symbols 0..codes-1. The Huffman code is generated by first sorting the + symbols by length from short to long, and retaining the symbol order + for codes with equal lengths. Then the code starts with all zero bits + for the first code of the shortest length, and the codes are integer + increments for the same length, and zeros are appended as the length + increases. For the deflate format, these bits are stored backwards + from their more natural integer increment ordering, and so when the + decoding tables are built in the large loop below, the integer codes + are incremented backwards. + + This routine assumes, but does not check, that all of the entries in + lens[] are in the range 0..MAXBITS. The caller must assure this. + 1..MAXBITS is interpreted as that code length. zero means that that + symbol does not occur in this code. + + The codes are sorted by computing a count of codes for each length, + creating from that a table of starting indices for each length in the + sorted table, and then entering the symbols in order in the sorted + table. The sorted table is work[], with that space being provided by + the caller. + + The length counts are used for other purposes as well, i.e. finding + the minimum and maximum length codes, determining if there are any + codes at all, checking for a valid set of lengths, and looking ahead + at length counts to determine sub-table sizes when building the + decoding tables. + */ + + /* accumulate lengths for codes (assumes lens[] all in 0..MAXBITS) */ + for (len = 0; len <= MAXBITS; len++) + count[len] = 0; + for (sym = 0; sym < codes; sym++) + count[lens[sym]]++; + + /* bound code lengths, force root to be within code lengths */ + root = *bits; + for (max = MAXBITS; max >= 1; max--) + if (count[max] != 0) break; + if (root > max) root = max; + if (max == 0) { /* no symbols to code at all */ + here.op = (unsigned char)64; /* invalid code marker */ + here.bits = (unsigned char)1; + here.val = (unsigned short)0; + *(*table)++ = here; /* make a table to force an error */ + *(*table)++ = here; + *bits = 1; + return 0; /* no symbols, but wait for decoding to report error */ + } + for (min = 1; min < max; min++) + if (count[min] != 0) break; + if (root < min) root = min; + + /* check for an over-subscribed or incomplete set of lengths */ + left = 1; + for (len = 1; len <= MAXBITS; len++) { + left <<= 1; + left -= count[len]; + if (left < 0) return -1; /* over-subscribed */ + } + if (left > 0 && (type == CODES || max != 1)) + return -1; /* incomplete set */ + + /* generate offsets into symbol table for each length for sorting */ + offs[1] = 0; + for (len = 1; len < MAXBITS; len++) + offs[len + 1] = offs[len] + count[len]; + + /* sort symbols by length, by symbol order within each length */ + for (sym = 0; sym < codes; sym++) + if (lens[sym] != 0) work[offs[lens[sym]]++] = (unsigned short)sym; + + /* + Create and fill in decoding tables. In this loop, the table being + filled is at next and has curr index bits. The code being used is huff + with length len. That code is converted to an index by dropping drop + bits off of the bottom. For codes where len is less than drop + curr, + those top drop + curr - len bits are incremented through all values to + fill the table with replicated entries. + + root is the number of index bits for the root table. When len exceeds + root, sub-tables are created pointed to by the root entry with an index + of the low root bits of huff. This is saved in low to check for when a + new sub-table should be started. drop is zero when the root table is + being filled, and drop is root when sub-tables are being filled. + + When a new sub-table is needed, it is necessary to look ahead in the + code lengths to determine what size sub-table is needed. The length + counts are used for this, and so count[] is decremented as codes are + entered in the tables. + + used keeps track of how many table entries have been allocated from the + provided *table space. It is checked for LENS and DIST tables against + the constants ENOUGH_LENS and ENOUGH_DISTS to guard against changes in + the initial root table size constants. See the comments in inftrees.h + for more information. + + sym increments through all symbols, and the loop terminates when + all codes of length max, i.e. all codes, have been processed. This + routine permits incomplete codes, so another loop after this one fills + in the rest of the decoding tables with invalid code markers. + */ + + /* set up for code type */ + switch (type) { + case CODES: + base = extra = work; /* dummy value--not used */ + end = 19; + break; + case LENS: + base = lbase; + base -= 257; + extra = lext; + extra -= 257; + end = 256; + break; + default: /* DISTS */ + base = dbase; + extra = dext; + end = -1; + } + + /* initialize state for loop */ + huff = 0; /* starting code */ + sym = 0; /* starting code symbol */ + len = min; /* starting code length */ + next = *table; /* current table to fill in */ + curr = root; /* current table index bits */ + drop = 0; /* current bits to drop from code for index */ + low = (unsigned)(-1); /* trigger new sub-table when len > root */ + used = 1U << root; /* use root table entries */ + mask = used - 1; /* mask for comparing low */ + + /* check available table space */ + if ((type == LENS && used >= ENOUGH_LENS) || + (type == DISTS && used >= ENOUGH_DISTS)) + return 1; + + /* process all codes and make table entries */ + for (;;) { + /* create table entry */ + here.bits = (unsigned char)(len - drop); + if ((int)(work[sym]) < end) { + here.op = (unsigned char)0; + here.val = work[sym]; + } + else if ((int)(work[sym]) > end) { + here.op = (unsigned char)(extra[work[sym]]); + here.val = base[work[sym]]; + } + else { + here.op = (unsigned char)(32 + 64); /* end of block */ + here.val = 0; + } + + /* replicate for those indices with low len bits equal to huff */ + incr = 1U << (len - drop); + fill = 1U << curr; + min = fill; /* save offset to next table */ + do { + fill -= incr; + next[(huff >> drop) + fill] = here; + } while (fill != 0); + + /* backwards increment the len-bit code huff */ + incr = 1U << (len - 1); + while (huff & incr) + incr >>= 1; + if (incr != 0) { + huff &= incr - 1; + huff += incr; + } + else + huff = 0; + + /* go to next symbol, update count, len */ + sym++; + if (--(count[len]) == 0) { + if (len == max) break; + len = lens[work[sym]]; + } + + /* create new sub-table if needed */ + if (len > root && (huff & mask) != low) { + /* if first time, transition to sub-tables */ + if (drop == 0) + drop = root; + + /* increment past last table */ + next += min; /* here min is 1 << curr */ + + /* determine length of next table */ + curr = len - drop; + left = (int)(1 << curr); + while (curr + drop < max) { + left -= count[curr + drop]; + if (left <= 0) break; + curr++; + left <<= 1; + } + + /* check for enough space */ + used += 1U << curr; + if ((type == LENS && used >= ENOUGH_LENS) || + (type == DISTS && used >= ENOUGH_DISTS)) + return 1; + + /* point entry in root table to sub-table */ + low = huff & mask; + (*table)[low].op = (unsigned char)curr; + (*table)[low].bits = (unsigned char)root; + (*table)[low].val = (unsigned short)(next - *table); + } + } + + /* + Fill in rest of table for incomplete codes. This loop is similar to the + loop above in incrementing huff for table indices. It is assumed that + len is equal to curr + drop, so there is no loop needed to increment + through high index bits. When the current sub-table is filled, the loop + drops back to the root table to fill in any remaining entries there. + */ + here.op = (unsigned char)64; /* invalid code marker */ + here.bits = (unsigned char)(len - drop); + here.val = (unsigned short)0; + while (huff != 0) { + /* when done with sub-table, drop back to root table */ + if (drop != 0 && (huff & mask) != low) { + drop = 0; + len = root; + next = *table; + here.bits = (unsigned char)len; + } + + /* put invalid code marker in table */ + next[huff >> drop] = here; + + /* backwards increment the len-bit code huff */ + incr = 1U << (len - 1); + while (huff & incr) + incr >>= 1; + if (incr != 0) { + huff &= incr - 1; + huff += incr; + } + else + huff = 0; + } + + /* set return parameters */ + *table += used; + *bits = root; + return 0; +} diff --git a/zlib/inftrees.h b/zlib/inftrees.h new file mode 100644 index 0000000..baa53a0 --- /dev/null +++ b/zlib/inftrees.h @@ -0,0 +1,62 @@ +/* inftrees.h -- header to use inftrees.c + * Copyright (C) 1995-2005, 2010 Mark Adler + * For conditions of distribution and use, see copyright notice in zlib.h + */ + +/* WARNING: this file should *not* be used by applications. It is + part of the implementation of the compression library and is + subject to change. Applications should only use zlib.h. + */ + +/* Structure for decoding tables. Each entry provides either the + information needed to do the operation requested by the code that + indexed that table entry, or it provides a pointer to another + table that indexes more bits of the code. op indicates whether + the entry is a pointer to another table, a literal, a length or + distance, an end-of-block, or an invalid code. For a table + pointer, the low four bits of op is the number of index bits of + that table. For a length or distance, the low four bits of op + is the number of extra bits to get after the code. bits is + the number of bits in this code or part of the code to drop off + of the bit buffer. val is the actual byte to output in the case + of a literal, the base length or distance, or the offset from + the current table to the next table. Each entry is four bytes. */ +typedef struct { + unsigned char op; /* operation, extra bits, table bits */ + unsigned char bits; /* bits in this part of the code */ + unsigned short val; /* offset in table or code value */ +} code; + +/* op values as set by inflate_table(): + 00000000 - literal + 0000tttt - table link, tttt != 0 is the number of table index bits + 0001eeee - length or distance, eeee is the number of extra bits + 01100000 - end of block + 01000000 - invalid code + */ + +/* Maximum size of the dynamic table. The maximum number of code structures is + 1444, which is the sum of 852 for literal/length codes and 592 for distance + codes. These values were found by exhaustive searches using the program + examples/enough.c found in the zlib distribtution. The arguments to that + program are the number of symbols, the initial root table size, and the + maximum bit length of a code. "enough 286 9 15" for literal/length codes + returns returns 852, and "enough 30 6 15" for distance codes returns 592. + The initial root table size (9 or 6) is found in the fifth argument of the + inflate_table() calls in inflate.c and infback.c. If the root table size is + changed, then these maximum sizes would be need to be recalculated and + updated. */ +#define ENOUGH_LENS 852 +#define ENOUGH_DISTS 592 +#define ENOUGH (ENOUGH_LENS+ENOUGH_DISTS) + +/* Type of code to build for inflate_table() */ +typedef enum { + CODES, + LENS, + DISTS +} codetype; + +int ZLIB_INTERNAL inflate_table OF((codetype type, unsigned short FAR *lens, + unsigned codes, code FAR * FAR *table, + unsigned FAR *bits, unsigned short FAR *work)); diff --git a/zlib/libzlib.lib b/zlib/libzlib.lib new file mode 100644 index 0000000..78aff5f Binary files /dev/null and b/zlib/libzlib.lib differ diff --git a/zlib/make_vms.com b/zlib/make_vms.com new file mode 100644 index 0000000..6576490 --- /dev/null +++ b/zlib/make_vms.com @@ -0,0 +1,804 @@ +$! make libz under VMS written by +$! Martin P.J. Zinser +$! +$! In case of problems with the install you might contact me at +$! zinser@zinser.no-ip.info(preferred) or +$! zinser@sysdev.deutsche-boerse.com (work) +$! +$! Make procedure history for Zlib +$! +$!------------------------------------------------------------------------------ +$! Version history +$! 0.01 20060120 First version to receive a number +$! 0.02 20061008 Adapt to new Makefile.in +$! 0.03 20091224 Add support for large file check +$! 0.04 20100110 Add new gzclose, gzlib, gzread, gzwrite +$! 0.05 20100221 Exchange zlibdefs.h by zconf.h.in +$! +$ on error then goto err_exit +$ set proc/parse=ext +$! +$ true = 1 +$ false = 0 +$ tmpnam = "temp_" + f$getjpi("","pid") +$ tt = tmpnam + ".txt" +$ tc = tmpnam + ".c" +$ th = tmpnam + ".h" +$ define/nolog tconfig 'th' +$ its_decc = false +$ its_vaxc = false +$ its_gnuc = false +$ s_case = False +$! +$! Setup variables holding "config" information +$! +$ Make = "" +$ name = "Zlib" +$ version = "?.?.?" +$ v_string = "ZLIB_VERSION" +$ v_file = "zlib.h" +$ ccopt = "" +$ lopts = "" +$ dnsrl = "" +$ aconf_in_file = "zconf.h.in#zconf.h_in" +$ conf_check_string = "" +$ linkonly = false +$ optfile = name + ".opt" +$ libdefs = "" +$ axp = f$getsyi("HW_MODEL").ge.1024 .and. f$getsyi("HW_MODEL").lt.4096 +$! +$ whoami = f$parse(f$enviornment("Procedure"),,,,"NO_CONCEAL") +$ mydef = F$parse(whoami,,,"DEVICE") +$ mydir = f$parse(whoami,,,"DIRECTORY") - "][" +$ myproc = f$parse(whoami,,,"Name") + f$parse(whoami,,,"type") +$! +$! Check for MMK/MMS +$! +$ If F$Search ("Sys$System:MMS.EXE") .nes. "" Then Make = "MMS" +$ If F$Type (MMK) .eqs. "STRING" Then Make = "MMK" +$! +$! +$ gosub find_version +$! +$ open/write topt tmp.opt +$ open/write optf 'optfile' +$! +$ gosub check_opts +$! +$! Look for the compiler used +$! +$ gosub check_compiler +$ close topt +$! +$ if its_decc +$ then +$ ccopt = "/prefix=all" + ccopt +$ if f$trnlnm("SYS") .eqs. "" +$ then +$ if axp +$ then +$ define sys sys$library: +$ else +$ ccopt = "/decc" + ccopt +$ define sys decc$library_include: +$ endif +$ endif +$ endif +$ if its_vaxc .or. its_gnuc +$ then +$ if f$trnlnm("SYS").eqs."" then define sys sys$library: +$ endif +$! +$! Build a fake configure input header +$! +$ open/write conf_hin config.hin +$ write conf_hin "#undef _LARGEFILE64_SOURCE" +$ close conf_hin +$! +$! +$ i = 0 +$FIND_ACONF: +$ fname = f$element(i,"#",aconf_in_file) +$ if fname .eqs. "#" then goto AMISS_ERR +$ if f$search(fname) .eqs. "" +$ then +$ i = i + 1 +$ goto find_aconf +$ endif +$ open/read/err=aconf_err aconf_in 'fname' +$ open/write aconf zconf.h +$ACONF_LOOP: +$ read/end_of_file=aconf_exit aconf_in line +$ work = f$edit(line, "compress,trim") +$ if f$extract(0,6,work) .nes. "#undef" +$ then +$ if f$extract(0,12,work) .nes. "#cmakedefine" +$ then +$ write aconf line +$ endif +$ else +$ cdef = f$element(1," ",work) +$ gosub check_config +$ endif +$ goto aconf_loop +$ACONF_EXIT: +$ write aconf "#define VMS 1" +$ write aconf "#include " +$ write aconf "#include " +$ write aconf "#ifdef _LARGEFILE" +$ write aconf "#define off64_t __off64_t" +$ write aconf "#define fopen64 fopen" +$ write aconf "#define fseeko64 fseeko" +$ write aconf "#define lseek64 lseek" +$ write aconf "#define ftello64 ftell" +$ write aconf "#endif" +$ close aconf_in +$ close aconf +$ if f$search("''th'") .nes. "" then delete 'th';* +$! Build the thing plain or with mms +$! +$ write sys$output "Compiling Zlib sources ..." +$ if make.eqs."" +$ then +$ dele example.obj;*,minigzip.obj;* +$ CALL MAKE adler32.OBJ "CC ''CCOPT' adler32" - + adler32.c zlib.h zconf.h +$ CALL MAKE compress.OBJ "CC ''CCOPT' compress" - + compress.c zlib.h zconf.h +$ CALL MAKE crc32.OBJ "CC ''CCOPT' crc32" - + crc32.c zlib.h zconf.h +$ CALL MAKE deflate.OBJ "CC ''CCOPT' deflate" - + deflate.c deflate.h zutil.h zlib.h zconf.h +$ CALL MAKE gzclose.OBJ "CC ''CCOPT' gzclose" - + gzclose.c zutil.h zlib.h zconf.h +$ CALL MAKE gzlib.OBJ "CC ''CCOPT' gzlib" - + gzlib.c zutil.h zlib.h zconf.h +$ CALL MAKE gzread.OBJ "CC ''CCOPT' gzread" - + gzread.c zutil.h zlib.h zconf.h +$ CALL MAKE gzwrite.OBJ "CC ''CCOPT' gzwrite" - + gzwrite.c zutil.h zlib.h zconf.h +$ CALL MAKE infback.OBJ "CC ''CCOPT' infback" - + infback.c zutil.h inftrees.h inflate.h inffast.h inffixed.h +$ CALL MAKE inffast.OBJ "CC ''CCOPT' inffast" - + inffast.c zutil.h zlib.h zconf.h inffast.h +$ CALL MAKE inflate.OBJ "CC ''CCOPT' inflate" - + inflate.c zutil.h zlib.h zconf.h infblock.h +$ CALL MAKE inftrees.OBJ "CC ''CCOPT' inftrees" - + inftrees.c zutil.h zlib.h zconf.h inftrees.h +$ CALL MAKE trees.OBJ "CC ''CCOPT' trees" - + trees.c deflate.h zutil.h zlib.h zconf.h +$ CALL MAKE uncompr.OBJ "CC ''CCOPT' uncompr" - + uncompr.c zlib.h zconf.h +$ CALL MAKE zutil.OBJ "CC ''CCOPT' zutil" - + zutil.c zutil.h zlib.h zconf.h +$ write sys$output "Building Zlib ..." +$ CALL MAKE libz.OLB "lib/crea libz.olb *.obj" *.OBJ +$ write sys$output "Building example..." +$ CALL MAKE example.OBJ "CC ''CCOPT' example" - + example.c zlib.h zconf.h +$ call make example.exe "LINK example,libz.olb/lib" example.obj libz.olb +$ if f$search("x11vms:xvmsutils.olb") .nes. "" +$ then +$ write sys$output "Building minigzip..." +$ CALL MAKE minigzip.OBJ "CC ''CCOPT' minigzip" - + minigzip.c zlib.h zconf.h +$ call make minigzip.exe - + "LINK minigzip,libz.olb/lib,x11vms:xvmsutils.olb/lib" - + minigzip.obj libz.olb +$ endif +$ else +$ gosub crea_mms +$ write sys$output "Make ''name' ''version' with ''Make' " +$ 'make' +$ endif +$! +$! Alpha gets a shareable image +$! +$ If axp +$ Then +$ gosub crea_olist +$ write sys$output "Creating libzshr.exe" +$ call anal_obj_axp modules.opt _link.opt +$ if s_case +$ then +$ open/append optf modules.opt +$ write optf "case_sensitive=YES" +$ close optf +$ endif +$ LINK_'lopts'/SHARE=libzshr.exe modules.opt/opt,_link.opt/opt +$ endif +$ write sys$output "Zlib build completed" +$ exit +$CC_ERR: +$ write sys$output "C compiler required to build ''name'" +$ goto err_exit +$ERR_EXIT: +$ set message/facil/ident/sever/text +$ close/nolog optf +$ close/nolog topt +$ close/nolog conf_hin +$ close/nolog aconf_in +$ close/nolog aconf +$ close/nolog out +$ close/nolog min +$ close/nolog mod +$ close/nolog h_in +$ write sys$output "Exiting..." +$ exit 2 +$! +$! +$MAKE: SUBROUTINE !SUBROUTINE TO CHECK DEPENDENCIES +$ V = 'F$Verify(0) +$! P1 = What we are trying to make +$! P2 = Command to make it +$! P3 - P8 What it depends on +$ +$ If F$Search(P1) .Eqs. "" Then Goto Makeit +$ Time = F$CvTime(F$File(P1,"RDT")) +$arg=3 +$Loop: +$ Argument = P'arg +$ If Argument .Eqs. "" Then Goto Exit +$ El=0 +$Loop2: +$ File = F$Element(El," ",Argument) +$ If File .Eqs. " " Then Goto Endl +$ AFile = "" +$Loop3: +$ OFile = AFile +$ AFile = F$Search(File) +$ If AFile .Eqs. "" .Or. AFile .Eqs. OFile Then Goto NextEl +$ If F$CvTime(F$File(AFile,"RDT")) .Ges. Time Then Goto Makeit +$ Goto Loop3 +$NextEL: +$ El = El + 1 +$ Goto Loop2 +$EndL: +$ arg=arg+1 +$ If arg .Le. 8 Then Goto Loop +$ Goto Exit +$ +$Makeit: +$ VV=F$VERIFY(0) +$ write sys$output P2 +$ 'P2 +$ VV='F$Verify(VV) +$Exit: +$ If V Then Set Verify +$ENDSUBROUTINE +$!------------------------------------------------------------------------------ +$! +$! Check command line options and set symbols accordingly +$! +$!------------------------------------------------------------------------------ +$! Version history +$! 0.01 20041206 First version to receive a number +$! 0.02 20060126 Add new "HELP" target +$ CHECK_OPTS: +$ i = 1 +$ OPT_LOOP: +$ if i .lt. 9 +$ then +$ cparm = f$edit(p'i',"upcase") +$! +$! Check if parameter actually contains something +$! +$ if f$edit(cparm,"trim") .nes. "" +$ then +$ if cparm .eqs. "DEBUG" +$ then +$ ccopt = ccopt + "/noopt/deb" +$ lopts = lopts + "/deb" +$ endif +$ if f$locate("CCOPT=",cparm) .lt. f$length(cparm) +$ then +$ start = f$locate("=",cparm) + 1 +$ len = f$length(cparm) - start +$ ccopt = ccopt + f$extract(start,len,cparm) +$ if f$locate("AS_IS",f$edit(ccopt,"UPCASE")) .lt. f$length(ccopt) - + then s_case = true +$ endif +$ if cparm .eqs. "LINK" then linkonly = true +$ if f$locate("LOPTS=",cparm) .lt. f$length(cparm) +$ then +$ start = f$locate("=",cparm) + 1 +$ len = f$length(cparm) - start +$ lopts = lopts + f$extract(start,len,cparm) +$ endif +$ if f$locate("CC=",cparm) .lt. f$length(cparm) +$ then +$ start = f$locate("=",cparm) + 1 +$ len = f$length(cparm) - start +$ cc_com = f$extract(start,len,cparm) + if (cc_com .nes. "DECC") .and. - + (cc_com .nes. "VAXC") .and. - + (cc_com .nes. "GNUC") +$ then +$ write sys$output "Unsupported compiler choice ''cc_com' ignored" +$ write sys$output "Use DECC, VAXC, or GNUC instead" +$ else +$ if cc_com .eqs. "DECC" then its_decc = true +$ if cc_com .eqs. "VAXC" then its_vaxc = true +$ if cc_com .eqs. "GNUC" then its_gnuc = true +$ endif +$ endif +$ if f$locate("MAKE=",cparm) .lt. f$length(cparm) +$ then +$ start = f$locate("=",cparm) + 1 +$ len = f$length(cparm) - start +$ mmks = f$extract(start,len,cparm) +$ if (mmks .eqs. "MMK") .or. (mmks .eqs. "MMS") +$ then +$ make = mmks +$ else +$ write sys$output "Unsupported make choice ''mmks' ignored" +$ write sys$output "Use MMK or MMS instead" +$ endif +$ endif +$ if cparm .eqs. "HELP" then gosub bhelp +$ endif +$ i = i + 1 +$ goto opt_loop +$ endif +$ return +$!------------------------------------------------------------------------------ +$! +$! Look for the compiler used +$! +$! Version history +$! 0.01 20040223 First version to receive a number +$! 0.02 20040229 Save/set value of decc$no_rooted_search_lists +$! 0.03 20060202 Extend handling of GNU C +$! 0.04 20090402 Compaq -> hp +$CHECK_COMPILER: +$ if (.not. (its_decc .or. its_vaxc .or. its_gnuc)) +$ then +$ its_decc = (f$search("SYS$SYSTEM:DECC$COMPILER.EXE") .nes. "") +$ its_vaxc = .not. its_decc .and. (F$Search("SYS$System:VAXC.Exe") .nes. "") +$ its_gnuc = .not. (its_decc .or. its_vaxc) .and. (f$trnlnm("gnu_cc") .nes. "") +$ endif +$! +$! Exit if no compiler available +$! +$ if (.not. (its_decc .or. its_vaxc .or. its_gnuc)) +$ then goto CC_ERR +$ else +$ if its_decc +$ then +$ write sys$output "CC compiler check ... hp C" +$ if f$trnlnm("decc$no_rooted_search_lists") .nes. "" +$ then +$ dnrsl = f$trnlnm("decc$no_rooted_search_lists") +$ endif +$ define/nolog decc$no_rooted_search_lists 1 +$ else +$ if its_vaxc then write sys$output "CC compiler check ... VAX C" +$ if its_gnuc +$ then +$ write sys$output "CC compiler check ... GNU C" +$ if f$trnlnm(topt) then write topt "gnu_cc:[000000]gcclib.olb/lib" +$ if f$trnlnm(optf) then write optf "gnu_cc:[000000]gcclib.olb/lib" +$ cc = "gcc" +$ endif +$ if f$trnlnm(topt) then write topt "sys$share:vaxcrtl.exe/share" +$ if f$trnlnm(optf) then write optf "sys$share:vaxcrtl.exe/share" +$ endif +$ endif +$ return +$!------------------------------------------------------------------------------ +$! +$! If MMS/MMK are available dump out the descrip.mms if required +$! +$CREA_MMS: +$ write sys$output "Creating descrip.mms..." +$ create descrip.mms +$ open/append out descrip.mms +$ copy sys$input: out +$ deck +# descrip.mms: MMS description file for building zlib on VMS +# written by Martin P.J. Zinser +# + +OBJS = adler32.obj, compress.obj, crc32.obj, gzclose.obj, gzlib.obj\ + gzread.obj, gzwrite.obj, uncompr.obj, infback.obj\ + deflate.obj, trees.obj, zutil.obj, inflate.obj, \ + inftrees.obj, inffast.obj + +$ eod +$ write out "CFLAGS=", ccopt +$ write out "LOPTS=", lopts +$ copy sys$input: out +$ deck + +all : example.exe minigzip.exe libz.olb + @ write sys$output " Example applications available" + +libz.olb : libz.olb($(OBJS)) + @ write sys$output " libz available" + +example.exe : example.obj libz.olb + link $(LOPTS) example,libz.olb/lib + +minigzip.exe : minigzip.obj libz.olb + link $(LOPTS) minigzip,libz.olb/lib,x11vms:xvmsutils.olb/lib + +clean : + delete *.obj;*,libz.olb;*,*.opt;*,*.exe;* + + +# Other dependencies. +adler32.obj : adler32.c zutil.h zlib.h zconf.h +compress.obj : compress.c zlib.h zconf.h +crc32.obj : crc32.c zutil.h zlib.h zconf.h +deflate.obj : deflate.c deflate.h zutil.h zlib.h zconf.h +example.obj : example.c zlib.h zconf.h +gzclose.obj : gzclose.c zutil.h zlib.h zconf.h +gzlib.obj : gzlib.c zutil.h zlib.h zconf.h +gzread.obj : gzread.c zutil.h zlib.h zconf.h +gzwrite.obj : gzwrite.c zutil.h zlib.h zconf.h +inffast.obj : inffast.c zutil.h zlib.h zconf.h inftrees.h inffast.h +inflate.obj : inflate.c zutil.h zlib.h zconf.h +inftrees.obj : inftrees.c zutil.h zlib.h zconf.h inftrees.h +minigzip.obj : minigzip.c zlib.h zconf.h +trees.obj : trees.c deflate.h zutil.h zlib.h zconf.h +uncompr.obj : uncompr.c zlib.h zconf.h +zutil.obj : zutil.c zutil.h zlib.h zconf.h +infback.obj : infback.c zutil.h inftrees.h inflate.h inffast.h inffixed.h +$ eod +$ close out +$ return +$!------------------------------------------------------------------------------ +$! +$! Read list of core library sources from makefile.in and create options +$! needed to build shareable image +$! +$CREA_OLIST: +$ open/read min makefile.in +$ open/write mod modules.opt +$ src_check = "OBJC =" +$MRLOOP: +$ read/end=mrdone min rec +$ if (f$extract(0,6,rec) .nes. src_check) then goto mrloop +$ rec = rec - src_check +$ gosub extra_filnam +$ if (f$element(1,"\",rec) .eqs. "\") then goto mrdone +$MRSLOOP: +$ read/end=mrdone min rec +$ gosub extra_filnam +$ if (f$element(1,"\",rec) .nes. "\") then goto mrsloop +$MRDONE: +$ close min +$ close mod +$ return +$!------------------------------------------------------------------------------ +$! +$! Take record extracted in crea_olist and split it into single filenames +$! +$EXTRA_FILNAM: +$ myrec = f$edit(rec - "\", "trim,compress") +$ i = 0 +$FELOOP: +$ srcfil = f$element(i," ", myrec) +$ if (srcfil .nes. " ") +$ then +$ write mod f$parse(srcfil,,,"NAME"), ".obj" +$ i = i + 1 +$ goto feloop +$ endif +$ return +$!------------------------------------------------------------------------------ +$! +$! Find current Zlib version number +$! +$FIND_VERSION: +$ open/read h_in 'v_file' +$hloop: +$ read/end=hdone h_in rec +$ rec = f$edit(rec,"TRIM") +$ if (f$extract(0,1,rec) .nes. "#") then goto hloop +$ rec = f$edit(rec - "#", "TRIM") +$ if f$element(0," ",rec) .nes. "define" then goto hloop +$ if f$element(1," ",rec) .eqs. v_string +$ then +$ version = 'f$element(2," ",rec)' +$ goto hdone +$ endif +$ goto hloop +$hdone: +$ close h_in +$ return +$!------------------------------------------------------------------------------ +$! +$CHECK_CONFIG: +$! +$ in_ldef = f$locate(cdef,libdefs) +$ if (in_ldef .lt. f$length(libdefs)) +$ then +$ write aconf "#define ''cdef' 1" +$ libdefs = f$extract(0,in_ldef,libdefs) + - + f$extract(in_ldef + f$length(cdef) + 1, - + f$length(libdefs) - in_ldef - f$length(cdef) - 1, - + libdefs) +$ else +$ if (f$type('cdef') .eqs. "INTEGER") +$ then +$ write aconf "#define ''cdef' ", 'cdef' +$ else +$ if (f$type('cdef') .eqs. "STRING") +$ then +$ write aconf "#define ''cdef' ", """", '''cdef'', """" +$ else +$ gosub check_cc_def +$ endif +$ endif +$ endif +$ return +$!------------------------------------------------------------------------------ +$! +$! Check if this is a define relating to the properties of the C/C++ +$! compiler +$! +$ CHECK_CC_DEF: +$ if (cdef .eqs. "_LARGEFILE64_SOURCE") +$ then +$ copy sys$input: 'tc' +$ deck +#include "tconfig" +#define _LARGEFILE +#include + +int main(){ +FILE *fp; + fp = fopen("temp.txt","r"); + fseeko(fp,1,SEEK_SET); + fclose(fp); +} + +$ eod +$ test_inv = false +$ comm_h = false +$ gosub cc_prop_check +$ return +$ endif +$ write aconf "/* ", line, " */" +$ return +$!------------------------------------------------------------------------------ +$! +$! Check for properties of C/C++ compiler +$! +$! Version history +$! 0.01 20031020 First version to receive a number +$! 0.02 20031022 Added logic for defines with value +$! 0.03 20040309 Make sure local config file gets not deleted +$! 0.04 20041230 Also write include for configure run +$! 0.05 20050103 Add processing of "comment defines" +$CC_PROP_CHECK: +$ cc_prop = true +$ is_need = false +$ is_need = (f$extract(0,4,cdef) .eqs. "NEED") .or. (test_inv .eq. true) +$ if f$search(th) .eqs. "" then create 'th' +$ set message/nofac/noident/nosever/notext +$ on error then continue +$ cc 'tmpnam' +$ if .not. ($status) then cc_prop = false +$ on error then continue +$! The headers might lie about the capabilities of the RTL +$ link 'tmpnam',tmp.opt/opt +$ if .not. ($status) then cc_prop = false +$ set message/fac/ident/sever/text +$ on error then goto err_exit +$ delete/nolog 'tmpnam'.*;*/exclude='th' +$ if (cc_prop .and. .not. is_need) .or. - + (.not. cc_prop .and. is_need) +$ then +$ write sys$output "Checking for ''cdef'... yes" +$ if f$type('cdef_val'_yes) .nes. "" +$ then +$ if f$type('cdef_val'_yes) .eqs. "INTEGER" - + then call write_config f$fao("#define !AS !UL",cdef,'cdef_val'_yes) +$ if f$type('cdef_val'_yes) .eqs. "STRING" - + then call write_config f$fao("#define !AS !AS",cdef,'cdef_val'_yes) +$ else +$ call write_config f$fao("#define !AS 1",cdef) +$ endif +$ if (cdef .eqs. "HAVE_FSEEKO") .or. (cdef .eqs. "_LARGE_FILES") .or. - + (cdef .eqs. "_LARGEFILE64_SOURCE") then - + call write_config f$string("#define _LARGEFILE 1") +$ else +$ write sys$output "Checking for ''cdef'... no" +$ if (comm_h) +$ then + call write_config f$fao("/* !AS */",line) +$ else +$ if f$type('cdef_val'_no) .nes. "" +$ then +$ if f$type('cdef_val'_no) .eqs. "INTEGER" - + then call write_config f$fao("#define !AS !UL",cdef,'cdef_val'_no) +$ if f$type('cdef_val'_no) .eqs. "STRING" - + then call write_config f$fao("#define !AS !AS",cdef,'cdef_val'_no) +$ else +$ call write_config f$fao("#undef !AS",cdef) +$ endif +$ endif +$ endif +$ return +$!------------------------------------------------------------------------------ +$! +$! Check for properties of C/C++ compiler with multiple result values +$! +$! Version history +$! 0.01 20040127 First version +$! 0.02 20050103 Reconcile changes from cc_prop up to version 0.05 +$CC_MPROP_CHECK: +$ cc_prop = true +$ i = 1 +$ idel = 1 +$ MT_LOOP: +$ if f$type(result_'i') .eqs. "STRING" +$ then +$ set message/nofac/noident/nosever/notext +$ on error then continue +$ cc 'tmpnam'_'i' +$ if .not. ($status) then cc_prop = false +$ on error then continue +$! The headers might lie about the capabilities of the RTL +$ link 'tmpnam'_'i',tmp.opt/opt +$ if .not. ($status) then cc_prop = false +$ set message/fac/ident/sever/text +$ on error then goto err_exit +$ delete/nolog 'tmpnam'_'i'.*;* +$ if (cc_prop) +$ then +$ write sys$output "Checking for ''cdef'... ", mdef_'i' +$ if f$type(mdef_'i') .eqs. "INTEGER" - + then call write_config f$fao("#define !AS !UL",cdef,mdef_'i') +$ if f$type('cdef_val'_yes) .eqs. "STRING" - + then call write_config f$fao("#define !AS !AS",cdef,mdef_'i') +$ goto msym_clean +$ else +$ i = i + 1 +$ goto mt_loop +$ endif +$ endif +$ write sys$output "Checking for ''cdef'... no" +$ call write_config f$fao("#undef !AS",cdef) +$ MSYM_CLEAN: +$ if (idel .le. msym_max) +$ then +$ delete/sym mdef_'idel' +$ idel = idel + 1 +$ goto msym_clean +$ endif +$ return +$!------------------------------------------------------------------------------ +$! +$! Analyze Object files for OpenVMS AXP to extract Procedure and Data +$! information to build a symbol vector for a shareable image +$! All the "brains" of this logic was suggested by Hartmut Becker +$! (Hartmut.Becker@compaq.com). All the bugs were introduced by me +$! (zinser@zinser.no-ip.info), so if you do have problem reports please do not +$! bother Hartmut/HP, but get in touch with me +$! +$! Version history +$! 0.01 20040406 Skip over shareable images in option file +$! 0.02 20041109 Fix option file for shareable images with case_sensitive=YES +$! 0.03 20050107 Skip over Identification labels in option file +$! 0.04 20060117 Add uppercase alias to code compiled with /name=as_is +$! +$ ANAL_OBJ_AXP: Subroutine +$ V = 'F$Verify(0) +$ SAY := "WRITE_ SYS$OUTPUT" +$ +$ IF F$SEARCH("''P1'") .EQS. "" +$ THEN +$ SAY "ANAL_OBJ_AXP-E-NOSUCHFILE: Error, inputfile ''p1' not available" +$ goto exit_aa +$ ENDIF +$ IF "''P2'" .EQS. "" +$ THEN +$ SAY "ANAL_OBJ_AXP: Error, no output file provided" +$ goto exit_aa +$ ENDIF +$ +$ open/read in 'p1 +$ create a.tmp +$ open/append atmp a.tmp +$ loop: +$ read/end=end_loop in line +$ if f$locate("/SHARE",f$edit(line,"upcase")) .lt. f$length(line) +$ then +$ write sys$output "ANAL_SKP_SHR-i-skipshare, ''line'" +$ goto loop +$ endif +$ if f$locate("IDENTIFICATION=",f$edit(line,"upcase")) .lt. f$length(line) +$ then +$ write sys$output "ANAL_OBJ_AXP-i-ident: Identification ", - + f$element(1,"=",line) +$ goto loop +$ endif +$ f= f$search(line) +$ if f .eqs. "" +$ then +$ write sys$output "ANAL_OBJ_AXP-w-nosuchfile, ''line'" +$ goto loop +$ endif +$ define/user sys$output nl: +$ define/user sys$error nl: +$ anal/obj/gsd 'f /out=x.tmp +$ open/read xtmp x.tmp +$ XLOOP: +$ read/end=end_xloop xtmp xline +$ xline = f$edit(xline,"compress") +$ write atmp xline +$ goto xloop +$ END_XLOOP: +$ close xtmp +$ goto loop +$ end_loop: +$ close in +$ close atmp +$ if f$search("a.tmp") .eqs. "" - + then $ exit +$ ! all global definitions +$ search a.tmp "symbol:","EGSY$V_DEF 1","EGSY$V_NORM 1"/out=b.tmp +$ ! all procedures +$ search b.tmp "EGSY$V_NORM 1"/wind=(0,1) /out=c.tmp +$ search c.tmp "symbol:"/out=d.tmp +$ define/user sys$output nl: +$ edito/edt/command=sys$input d.tmp +sub/symbol: "/symbol_vector=(/whole +sub/"/=PROCEDURE)/whole +exit +$ ! all data +$ search b.tmp "EGSY$V_DEF 1"/wind=(0,1) /out=e.tmp +$ search e.tmp "symbol:"/out=f.tmp +$ define/user sys$output nl: +$ edito/edt/command=sys$input f.tmp +sub/symbol: "/symbol_vector=(/whole +sub/"/=DATA)/whole +exit +$ sort/nodupl d.tmp,f.tmp g.tmp +$ open/read raw_vector g.tmp +$ open/write case_vector 'p2' +$ RAWLOOP: +$ read/end=end_rawloop raw_vector raw_element +$ write case_vector raw_element +$ if f$locate("=PROCEDURE)",raw_element) .lt. f$length(raw_element) +$ then +$ name = f$element(1,"=",raw_element) - "(" +$ if f$edit(name,"UPCASE") .nes. name then - + write case_vector f$fao(" symbol_vector=(!AS/!AS=PROCEDURE)", - + f$edit(name,"UPCASE"), name) +$ endif +$ if f$locate("=DATA)",raw_element) .lt. f$length(raw_element) +$ then +$ name = f$element(1,"=",raw_element) - "(" +$ if f$edit(name,"UPCASE") .nes. name then - + write case_vector f$fao(" symbol_vector=(!AS/!AS=DATA)", - + f$edit(name,"UPCASE"), name) +$ endif +$ goto rawloop +$ END_RAWLOOP: +$ close raw_vector +$ close case_vector +$ delete a.tmp;*,b.tmp;*,c.tmp;*,d.tmp;*,e.tmp;*,f.tmp;*,g.tmp;* +$ if f$search("x.tmp") .nes. "" - + then $ delete x.tmp;* +$! +$ EXIT_AA: +$ if V then set verify +$ endsubroutine +$!------------------------------------------------------------------------------ +$! +$! Write configuration to both permanent and temporary config file +$! +$! Version history +$! 0.01 20031029 First version to receive a number +$! +$WRITE_CONFIG: SUBROUTINE +$ write aconf 'p1' +$ open/append confh 'th' +$ write confh 'p1' +$ close confh +$ENDSUBROUTINE +$!------------------------------------------------------------------------------ diff --git a/zlib/minigzip.c b/zlib/minigzip.c new file mode 100644 index 0000000..9825ccc --- /dev/null +++ b/zlib/minigzip.c @@ -0,0 +1,440 @@ +/* minigzip.c -- simulate gzip using the zlib compression library + * Copyright (C) 1995-2006, 2010 Jean-loup Gailly. + * For conditions of distribution and use, see copyright notice in zlib.h + */ + +/* + * minigzip is a minimal implementation of the gzip utility. This is + * only an example of using zlib and isn't meant to replace the + * full-featured gzip. No attempt is made to deal with file systems + * limiting names to 14 or 8+3 characters, etc... Error checking is + * very limited. So use minigzip only for testing; use gzip for the + * real thing. On MSDOS, use only on file names without extension + * or in pipe mode. + */ + +/* @(#) $Id$ */ + +#include "zlib.h" +#include + +#ifdef STDC +# include +# include +#endif + +#ifdef USE_MMAP +# include +# include +# include +#endif + +#if defined(MSDOS) || defined(OS2) || defined(WIN32) || defined(__CYGWIN__) +# include +# include +# ifdef UNDER_CE +# include +# endif +# define SET_BINARY_MODE(file) setmode(fileno(file), O_BINARY) +#else +# define SET_BINARY_MODE(file) +#endif + +#ifdef VMS +# define unlink delete +# define GZ_SUFFIX "-gz" +#endif +#ifdef RISCOS +# define unlink remove +# define GZ_SUFFIX "-gz" +# define fileno(file) file->__file +#endif +#if defined(__MWERKS__) && __dest_os != __be_os && __dest_os != __win32_os +# include /* for fileno */ +#endif + +#if !defined(Z_HAVE_UNISTD_H) && !defined(_LARGEFILE64_SOURCE) +#ifndef WIN32 /* unlink already in stdio.h for WIN32 */ + extern int unlink OF((const char *)); +#endif +#endif + +#if defined(UNDER_CE) +# include +# define perror(s) pwinerror(s) + +/* Map the Windows error number in ERROR to a locale-dependent error + message string and return a pointer to it. Typically, the values + for ERROR come from GetLastError. + + The string pointed to shall not be modified by the application, + but may be overwritten by a subsequent call to strwinerror + + The strwinerror function does not change the current setting + of GetLastError. */ + +static char *strwinerror (error) + DWORD error; +{ + static char buf[1024]; + + wchar_t *msgbuf; + DWORD lasterr = GetLastError(); + DWORD chars = FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM + | FORMAT_MESSAGE_ALLOCATE_BUFFER, + NULL, + error, + 0, /* Default language */ + (LPVOID)&msgbuf, + 0, + NULL); + if (chars != 0) { + /* If there is an \r\n appended, zap it. */ + if (chars >= 2 + && msgbuf[chars - 2] == '\r' && msgbuf[chars - 1] == '\n') { + chars -= 2; + msgbuf[chars] = 0; + } + + if (chars > sizeof (buf) - 1) { + chars = sizeof (buf) - 1; + msgbuf[chars] = 0; + } + + wcstombs(buf, msgbuf, chars + 1); + LocalFree(msgbuf); + } + else { + sprintf(buf, "unknown win32 error (%ld)", error); + } + + SetLastError(lasterr); + return buf; +} + +static void pwinerror (s) + const char *s; +{ + if (s && *s) + fprintf(stderr, "%s: %s\n", s, strwinerror(GetLastError ())); + else + fprintf(stderr, "%s\n", strwinerror(GetLastError ())); +} + +#endif /* UNDER_CE */ + +#ifndef GZ_SUFFIX +# define GZ_SUFFIX ".gz" +#endif +#define SUFFIX_LEN (sizeof(GZ_SUFFIX)-1) + +#define BUFLEN 16384 +#define MAX_NAME_LEN 1024 + +#ifdef MAXSEG_64K +# define local static + /* Needed for systems with limitation on stack size. */ +#else +# define local +#endif + +char *prog; + +void error OF((const char *msg)); +void gz_compress OF((FILE *in, gzFile out)); +#ifdef USE_MMAP +int gz_compress_mmap OF((FILE *in, gzFile out)); +#endif +void gz_uncompress OF((gzFile in, FILE *out)); +void file_compress OF((char *file, char *mode)); +void file_uncompress OF((char *file)); +int main OF((int argc, char *argv[])); + +/* =========================================================================== + * Display error message and exit + */ +void error(msg) + const char *msg; +{ + fprintf(stderr, "%s: %s\n", prog, msg); + exit(1); +} + +/* =========================================================================== + * Compress input to output then close both files. + */ + +void gz_compress(in, out) + FILE *in; + gzFile out; +{ + local char buf[BUFLEN]; + int len; + int err; + +#ifdef USE_MMAP + /* Try first compressing with mmap. If mmap fails (minigzip used in a + * pipe), use the normal fread loop. + */ + if (gz_compress_mmap(in, out) == Z_OK) return; +#endif + for (;;) { + len = (int)fread(buf, 1, sizeof(buf), in); + if (ferror(in)) { + perror("fread"); + exit(1); + } + if (len == 0) break; + + if (gzwrite(out, buf, (unsigned)len) != len) error(gzerror(out, &err)); + } + fclose(in); + if (gzclose(out) != Z_OK) error("failed gzclose"); +} + +#ifdef USE_MMAP /* MMAP version, Miguel Albrecht */ + +/* Try compressing the input file at once using mmap. Return Z_OK if + * if success, Z_ERRNO otherwise. + */ +int gz_compress_mmap(in, out) + FILE *in; + gzFile out; +{ + int len; + int err; + int ifd = fileno(in); + caddr_t buf; /* mmap'ed buffer for the entire input file */ + off_t buf_len; /* length of the input file */ + struct stat sb; + + /* Determine the size of the file, needed for mmap: */ + if (fstat(ifd, &sb) < 0) return Z_ERRNO; + buf_len = sb.st_size; + if (buf_len <= 0) return Z_ERRNO; + + /* Now do the actual mmap: */ + buf = mmap((caddr_t) 0, buf_len, PROT_READ, MAP_SHARED, ifd, (off_t)0); + if (buf == (caddr_t)(-1)) return Z_ERRNO; + + /* Compress the whole file at once: */ + len = gzwrite(out, (char *)buf, (unsigned)buf_len); + + if (len != (int)buf_len) error(gzerror(out, &err)); + + munmap(buf, buf_len); + fclose(in); + if (gzclose(out) != Z_OK) error("failed gzclose"); + return Z_OK; +} +#endif /* USE_MMAP */ + +/* =========================================================================== + * Uncompress input to output then close both files. + */ +void gz_uncompress(in, out) + gzFile in; + FILE *out; +{ + local char buf[BUFLEN]; + int len; + int err; + + for (;;) { + len = gzread(in, buf, sizeof(buf)); + if (len < 0) error (gzerror(in, &err)); + if (len == 0) break; + + if ((int)fwrite(buf, 1, (unsigned)len, out) != len) { + error("failed fwrite"); + } + } + if (fclose(out)) error("failed fclose"); + + if (gzclose(in) != Z_OK) error("failed gzclose"); +} + + +/* =========================================================================== + * Compress the given file: create a corresponding .gz file and remove the + * original. + */ +void file_compress(file, mode) + char *file; + char *mode; +{ + local char outfile[MAX_NAME_LEN]; + FILE *in; + gzFile out; + + if (strlen(file) + strlen(GZ_SUFFIX) >= sizeof(outfile)) { + fprintf(stderr, "%s: filename too long\n", prog); + exit(1); + } + + strcpy(outfile, file); + strcat(outfile, GZ_SUFFIX); + + in = fopen(file, "rb"); + if (in == NULL) { + perror(file); + exit(1); + } + out = gzopen(outfile, mode); + if (out == NULL) { + fprintf(stderr, "%s: can't gzopen %s\n", prog, outfile); + exit(1); + } + gz_compress(in, out); + + unlink(file); +} + + +/* =========================================================================== + * Uncompress the given file and remove the original. + */ +void file_uncompress(file) + char *file; +{ + local char buf[MAX_NAME_LEN]; + char *infile, *outfile; + FILE *out; + gzFile in; + size_t len = strlen(file); + + if (len + strlen(GZ_SUFFIX) >= sizeof(buf)) { + fprintf(stderr, "%s: filename too long\n", prog); + exit(1); + } + + strcpy(buf, file); + + if (len > SUFFIX_LEN && strcmp(file+len-SUFFIX_LEN, GZ_SUFFIX) == 0) { + infile = file; + outfile = buf; + outfile[len-3] = '\0'; + } else { + outfile = file; + infile = buf; + strcat(infile, GZ_SUFFIX); + } + in = gzopen(infile, "rb"); + if (in == NULL) { + fprintf(stderr, "%s: can't gzopen %s\n", prog, infile); + exit(1); + } + out = fopen(outfile, "wb"); + if (out == NULL) { + perror(file); + exit(1); + } + + gz_uncompress(in, out); + + unlink(infile); +} + + +/* =========================================================================== + * Usage: minigzip [-c] [-d] [-f] [-h] [-r] [-1 to -9] [files...] + * -c : write to standard output + * -d : decompress + * -f : compress with Z_FILTERED + * -h : compress with Z_HUFFMAN_ONLY + * -r : compress with Z_RLE + * -1 to -9 : compression level + */ + +int main(argc, argv) + int argc; + char *argv[]; +{ + int copyout = 0; + int uncompr = 0; + gzFile file; + char *bname, outmode[20]; + + strcpy(outmode, "wb6 "); + + prog = argv[0]; + bname = strrchr(argv[0], '/'); + if (bname) + bname++; + else + bname = argv[0]; + argc--, argv++; + + if (!strcmp(bname, "gunzip")) + uncompr = 1; + else if (!strcmp(bname, "zcat")) + copyout = uncompr = 1; + + while (argc > 0) { + if (strcmp(*argv, "-c") == 0) + copyout = 1; + else if (strcmp(*argv, "-d") == 0) + uncompr = 1; + else if (strcmp(*argv, "-f") == 0) + outmode[3] = 'f'; + else if (strcmp(*argv, "-h") == 0) + outmode[3] = 'h'; + else if (strcmp(*argv, "-r") == 0) + outmode[3] = 'R'; + else if ((*argv)[0] == '-' && (*argv)[1] >= '1' && (*argv)[1] <= '9' && + (*argv)[2] == 0) + outmode[2] = (*argv)[1]; + else + break; + argc--, argv++; + } + if (outmode[3] == ' ') + outmode[3] = 0; + if (argc == 0) { + SET_BINARY_MODE(stdin); + SET_BINARY_MODE(stdout); + if (uncompr) { + file = gzdopen(fileno(stdin), "rb"); + if (file == NULL) error("can't gzdopen stdin"); + gz_uncompress(file, stdout); + } else { + file = gzdopen(fileno(stdout), outmode); + if (file == NULL) error("can't gzdopen stdout"); + gz_compress(stdin, file); + } + } else { + if (copyout) { + SET_BINARY_MODE(stdout); + } + do { + if (uncompr) { + if (copyout) { + file = gzopen(*argv, "rb"); + if (file == NULL) + fprintf(stderr, "%s: can't gzopen %s\n", prog, *argv); + else + gz_uncompress(file, stdout); + } else { + file_uncompress(*argv); + } + } else { + if (copyout) { + FILE * in = fopen(*argv, "rb"); + + if (in == NULL) { + perror(*argv); + } else { + file = gzdopen(fileno(stdout), outmode); + if (file == NULL) error("can't gzdopen stdout"); + + gz_compress(in, file); + } + + } else { + file_compress(*argv, outmode); + } + } + } while (argv++, --argc); + } + return 0; +} diff --git a/zlib/treebuild.xml b/zlib/treebuild.xml new file mode 100644 index 0000000..6b8f542 --- /dev/null +++ b/zlib/treebuild.xml @@ -0,0 +1,116 @@ + + + + zip compression library + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + diff --git a/zlib/trees.c b/zlib/trees.c new file mode 100644 index 0000000..56e9bb1 --- /dev/null +++ b/zlib/trees.c @@ -0,0 +1,1244 @@ +/* trees.c -- output deflated data using Huffman coding + * Copyright (C) 1995-2010 Jean-loup Gailly + * detect_data_type() function provided freely by Cosmin Truta, 2006 + * For conditions of distribution and use, see copyright notice in zlib.h + */ + +/* + * ALGORITHM + * + * The "deflation" process uses several Huffman trees. The more + * common source values are represented by shorter bit sequences. + * + * Each code tree is stored in a compressed form which is itself + * a Huffman encoding of the lengths of all the code strings (in + * ascending order by source values). The actual code strings are + * reconstructed from the lengths in the inflate process, as described + * in the deflate specification. + * + * REFERENCES + * + * Deutsch, L.P.,"'Deflate' Compressed Data Format Specification". + * Available in ftp.uu.net:/pub/archiving/zip/doc/deflate-1.1.doc + * + * Storer, James A. + * Data Compression: Methods and Theory, pp. 49-50. + * Computer Science Press, 1988. ISBN 0-7167-8156-5. + * + * Sedgewick, R. + * Algorithms, p290. + * Addison-Wesley, 1983. ISBN 0-201-06672-6. + */ + +/* @(#) $Id$ */ + +/* #define GEN_TREES_H */ + +#include "deflate.h" + +#ifdef DEBUG +# include +#endif + +/* =========================================================================== + * Constants + */ + +#define MAX_BL_BITS 7 +/* Bit length codes must not exceed MAX_BL_BITS bits */ + +#define END_BLOCK 256 +/* end of block literal code */ + +#define REP_3_6 16 +/* repeat previous bit length 3-6 times (2 bits of repeat count) */ + +#define REPZ_3_10 17 +/* repeat a zero length 3-10 times (3 bits of repeat count) */ + +#define REPZ_11_138 18 +/* repeat a zero length 11-138 times (7 bits of repeat count) */ + +local const int extra_lbits[LENGTH_CODES] /* extra bits for each length code */ + = {0,0,0,0,0,0,0,0,1,1,1,1,2,2,2,2,3,3,3,3,4,4,4,4,5,5,5,5,0}; + +local const int extra_dbits[D_CODES] /* extra bits for each distance code */ + = {0,0,0,0,1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,11,12,12,13,13}; + +local const int extra_blbits[BL_CODES]/* extra bits for each bit length code */ + = {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,2,3,7}; + +local const uch bl_order[BL_CODES] + = {16,17,18,0,8,7,9,6,10,5,11,4,12,3,13,2,14,1,15}; +/* The lengths of the bit length codes are sent in order of decreasing + * probability, to avoid transmitting the lengths for unused bit length codes. + */ + +#define Buf_size (8 * 2*sizeof(char)) +/* Number of bits used within bi_buf. (bi_buf might be implemented on + * more than 16 bits on some systems.) + */ + +/* =========================================================================== + * Local data. These are initialized only once. + */ + +#define DIST_CODE_LEN 512 /* see definition of array dist_code below */ + +#if defined(GEN_TREES_H) || !defined(STDC) +/* non ANSI compilers may not accept trees.h */ + +local ct_data static_ltree[L_CODES+2]; +/* The static literal tree. Since the bit lengths are imposed, there is no + * need for the L_CODES extra codes used during heap construction. However + * The codes 286 and 287 are needed to build a canonical tree (see _tr_init + * below). + */ + +local ct_data static_dtree[D_CODES]; +/* The static distance tree. (Actually a trivial tree since all codes use + * 5 bits.) + */ + +uch _dist_code[DIST_CODE_LEN]; +/* Distance codes. The first 256 values correspond to the distances + * 3 .. 258, the last 256 values correspond to the top 8 bits of + * the 15 bit distances. + */ + +uch _length_code[MAX_MATCH-MIN_MATCH+1]; +/* length code for each normalized match length (0 == MIN_MATCH) */ + +local int base_length[LENGTH_CODES]; +/* First normalized length for each code (0 = MIN_MATCH) */ + +local int base_dist[D_CODES]; +/* First normalized distance for each code (0 = distance of 1) */ + +#else +# include "trees.h" +#endif /* GEN_TREES_H */ + +struct static_tree_desc_s { + const ct_data *static_tree; /* static tree or NULL */ + const intf *extra_bits; /* extra bits for each code or NULL */ + int extra_base; /* base index for extra_bits */ + int elems; /* max number of elements in the tree */ + int max_length; /* max bit length for the codes */ +}; + +local static_tree_desc static_l_desc = +{static_ltree, extra_lbits, LITERALS+1, L_CODES, MAX_BITS}; + +local static_tree_desc static_d_desc = +{static_dtree, extra_dbits, 0, D_CODES, MAX_BITS}; + +local static_tree_desc static_bl_desc = +{(const ct_data *)0, extra_blbits, 0, BL_CODES, MAX_BL_BITS}; + +/* =========================================================================== + * Local (static) routines in this file. + */ + +local void tr_static_init OF((void)); +local void init_block OF((deflate_state *s)); +local void pqdownheap OF((deflate_state *s, ct_data *tree, int k)); +local void gen_bitlen OF((deflate_state *s, tree_desc *desc)); +local void gen_codes OF((ct_data *tree, int max_code, ushf *bl_count)); +local void build_tree OF((deflate_state *s, tree_desc *desc)); +local void scan_tree OF((deflate_state *s, ct_data *tree, int max_code)); +local void send_tree OF((deflate_state *s, ct_data *tree, int max_code)); +local int build_bl_tree OF((deflate_state *s)); +local void send_all_trees OF((deflate_state *s, int lcodes, int dcodes, + int blcodes)); +local void compress_block OF((deflate_state *s, ct_data *ltree, + ct_data *dtree)); +local int detect_data_type OF((deflate_state *s)); +local unsigned bi_reverse OF((unsigned value, int length)); +local void bi_windup OF((deflate_state *s)); +local void bi_flush OF((deflate_state *s)); +local void copy_block OF((deflate_state *s, charf *buf, unsigned len, + int header)); + +#ifdef GEN_TREES_H +local void gen_trees_header OF((void)); +#endif + +#ifndef DEBUG +# define send_code(s, c, tree) send_bits(s, tree[c].Code, tree[c].Len) + /* Send a code of the given tree. c and tree must not have side effects */ + +#else /* DEBUG */ +# define send_code(s, c, tree) \ + { if (z_verbose>2) fprintf(stderr,"\ncd %3d ",(c)); \ + send_bits(s, tree[c].Code, tree[c].Len); } +#endif + +/* =========================================================================== + * Output a short LSB first on the stream. + * IN assertion: there is enough room in pendingBuf. + */ +#define put_short(s, w) { \ + put_byte(s, (uch)((w) & 0xff)); \ + put_byte(s, (uch)((ush)(w) >> 8)); \ +} + +/* =========================================================================== + * Send a value on a given number of bits. + * IN assertion: length <= 16 and value fits in length bits. + */ +#ifdef DEBUG +local void send_bits OF((deflate_state *s, int value, int length)); + +local void send_bits(s, value, length) + deflate_state *s; + int value; /* value to send */ + int length; /* number of bits */ +{ + Tracevv((stderr," l %2d v %4x ", length, value)); + Assert(length > 0 && length <= 15, "invalid length"); + s->bits_sent += (ulg)length; + + /* If not enough room in bi_buf, use (valid) bits from bi_buf and + * (16 - bi_valid) bits from value, leaving (width - (16-bi_valid)) + * unused bits in value. + */ + if (s->bi_valid > (int)Buf_size - length) { + s->bi_buf |= (ush)value << s->bi_valid; + put_short(s, s->bi_buf); + s->bi_buf = (ush)value >> (Buf_size - s->bi_valid); + s->bi_valid += length - Buf_size; + } else { + s->bi_buf |= (ush)value << s->bi_valid; + s->bi_valid += length; + } +} +#else /* !DEBUG */ + +#define send_bits(s, value, length) \ +{ int len = length;\ + if (s->bi_valid > (int)Buf_size - len) {\ + int val = value;\ + s->bi_buf |= (ush)val << s->bi_valid;\ + put_short(s, s->bi_buf);\ + s->bi_buf = (ush)val >> (Buf_size - s->bi_valid);\ + s->bi_valid += len - Buf_size;\ + } else {\ + s->bi_buf |= (ush)(value) << s->bi_valid;\ + s->bi_valid += len;\ + }\ +} +#endif /* DEBUG */ + + +/* the arguments must not have side effects */ + +/* =========================================================================== + * Initialize the various 'constant' tables. + */ +local void tr_static_init() +{ +#if defined(GEN_TREES_H) || !defined(STDC) + static int static_init_done = 0; + int n; /* iterates over tree elements */ + int bits; /* bit counter */ + int length; /* length value */ + int code; /* code value */ + int dist; /* distance index */ + ush bl_count[MAX_BITS+1]; + /* number of codes at each bit length for an optimal tree */ + + if (static_init_done) return; + + /* For some embedded targets, global variables are not initialized: */ +#ifdef NO_INIT_GLOBAL_POINTERS + static_l_desc.static_tree = static_ltree; + static_l_desc.extra_bits = extra_lbits; + static_d_desc.static_tree = static_dtree; + static_d_desc.extra_bits = extra_dbits; + static_bl_desc.extra_bits = extra_blbits; +#endif + + /* Initialize the mapping length (0..255) -> length code (0..28) */ + length = 0; + for (code = 0; code < LENGTH_CODES-1; code++) { + base_length[code] = length; + for (n = 0; n < (1< dist code (0..29) */ + dist = 0; + for (code = 0 ; code < 16; code++) { + base_dist[code] = dist; + for (n = 0; n < (1<>= 7; /* from now on, all distances are divided by 128 */ + for ( ; code < D_CODES; code++) { + base_dist[code] = dist << 7; + for (n = 0; n < (1<<(extra_dbits[code]-7)); n++) { + _dist_code[256 + dist++] = (uch)code; + } + } + Assert (dist == 256, "tr_static_init: 256+dist != 512"); + + /* Construct the codes of the static literal tree */ + for (bits = 0; bits <= MAX_BITS; bits++) bl_count[bits] = 0; + n = 0; + while (n <= 143) static_ltree[n++].Len = 8, bl_count[8]++; + while (n <= 255) static_ltree[n++].Len = 9, bl_count[9]++; + while (n <= 279) static_ltree[n++].Len = 7, bl_count[7]++; + while (n <= 287) static_ltree[n++].Len = 8, bl_count[8]++; + /* Codes 286 and 287 do not exist, but we must include them in the + * tree construction to get a canonical Huffman tree (longest code + * all ones) + */ + gen_codes((ct_data *)static_ltree, L_CODES+1, bl_count); + + /* The static distance tree is trivial: */ + for (n = 0; n < D_CODES; n++) { + static_dtree[n].Len = 5; + static_dtree[n].Code = bi_reverse((unsigned)n, 5); + } + static_init_done = 1; + +# ifdef GEN_TREES_H + gen_trees_header(); +# endif +#endif /* defined(GEN_TREES_H) || !defined(STDC) */ +} + +/* =========================================================================== + * Genererate the file trees.h describing the static trees. + */ +#ifdef GEN_TREES_H +# ifndef DEBUG +# include +# endif + +# define SEPARATOR(i, last, width) \ + ((i) == (last)? "\n};\n\n" : \ + ((i) % (width) == (width)-1 ? ",\n" : ", ")) + +void gen_trees_header() +{ + FILE *header = fopen("trees.h", "w"); + int i; + + Assert (header != NULL, "Can't open trees.h"); + fprintf(header, + "/* header created automatically with -DGEN_TREES_H */\n\n"); + + fprintf(header, "local const ct_data static_ltree[L_CODES+2] = {\n"); + for (i = 0; i < L_CODES+2; i++) { + fprintf(header, "{{%3u},{%3u}}%s", static_ltree[i].Code, + static_ltree[i].Len, SEPARATOR(i, L_CODES+1, 5)); + } + + fprintf(header, "local const ct_data static_dtree[D_CODES] = {\n"); + for (i = 0; i < D_CODES; i++) { + fprintf(header, "{{%2u},{%2u}}%s", static_dtree[i].Code, + static_dtree[i].Len, SEPARATOR(i, D_CODES-1, 5)); + } + + fprintf(header, "const uch ZLIB_INTERNAL _dist_code[DIST_CODE_LEN] = {\n"); + for (i = 0; i < DIST_CODE_LEN; i++) { + fprintf(header, "%2u%s", _dist_code[i], + SEPARATOR(i, DIST_CODE_LEN-1, 20)); + } + + fprintf(header, + "const uch ZLIB_INTERNAL _length_code[MAX_MATCH-MIN_MATCH+1]= {\n"); + for (i = 0; i < MAX_MATCH-MIN_MATCH+1; i++) { + fprintf(header, "%2u%s", _length_code[i], + SEPARATOR(i, MAX_MATCH-MIN_MATCH, 20)); + } + + fprintf(header, "local const int base_length[LENGTH_CODES] = {\n"); + for (i = 0; i < LENGTH_CODES; i++) { + fprintf(header, "%1u%s", base_length[i], + SEPARATOR(i, LENGTH_CODES-1, 20)); + } + + fprintf(header, "local const int base_dist[D_CODES] = {\n"); + for (i = 0; i < D_CODES; i++) { + fprintf(header, "%5u%s", base_dist[i], + SEPARATOR(i, D_CODES-1, 10)); + } + + fclose(header); +} +#endif /* GEN_TREES_H */ + +/* =========================================================================== + * Initialize the tree data structures for a new zlib stream. + */ +void ZLIB_INTERNAL _tr_init(s) + deflate_state *s; +{ + tr_static_init(); + + s->l_desc.dyn_tree = s->dyn_ltree; + s->l_desc.stat_desc = &static_l_desc; + + s->d_desc.dyn_tree = s->dyn_dtree; + s->d_desc.stat_desc = &static_d_desc; + + s->bl_desc.dyn_tree = s->bl_tree; + s->bl_desc.stat_desc = &static_bl_desc; + + s->bi_buf = 0; + s->bi_valid = 0; + s->last_eob_len = 8; /* enough lookahead for inflate */ +#ifdef DEBUG + s->compressed_len = 0L; + s->bits_sent = 0L; +#endif + + /* Initialize the first block of the first file: */ + init_block(s); +} + +/* =========================================================================== + * Initialize a new block. + */ +local void init_block(s) + deflate_state *s; +{ + int n; /* iterates over tree elements */ + + /* Initialize the trees. */ + for (n = 0; n < L_CODES; n++) s->dyn_ltree[n].Freq = 0; + for (n = 0; n < D_CODES; n++) s->dyn_dtree[n].Freq = 0; + for (n = 0; n < BL_CODES; n++) s->bl_tree[n].Freq = 0; + + s->dyn_ltree[END_BLOCK].Freq = 1; + s->opt_len = s->static_len = 0L; + s->last_lit = s->matches = 0; +} + +#define SMALLEST 1 +/* Index within the heap array of least frequent node in the Huffman tree */ + + +/* =========================================================================== + * Remove the smallest element from the heap and recreate the heap with + * one less element. Updates heap and heap_len. + */ +#define pqremove(s, tree, top) \ +{\ + top = s->heap[SMALLEST]; \ + s->heap[SMALLEST] = s->heap[s->heap_len--]; \ + pqdownheap(s, tree, SMALLEST); \ +} + +/* =========================================================================== + * Compares to subtrees, using the tree depth as tie breaker when + * the subtrees have equal frequency. This minimizes the worst case length. + */ +#define smaller(tree, n, m, depth) \ + (tree[n].Freq < tree[m].Freq || \ + (tree[n].Freq == tree[m].Freq && depth[n] <= depth[m])) + +/* =========================================================================== + * Restore the heap property by moving down the tree starting at node k, + * exchanging a node with the smallest of its two sons if necessary, stopping + * when the heap property is re-established (each father smaller than its + * two sons). + */ +local void pqdownheap(s, tree, k) + deflate_state *s; + ct_data *tree; /* the tree to restore */ + int k; /* node to move down */ +{ + int v = s->heap[k]; + int j = k << 1; /* left son of k */ + while (j <= s->heap_len) { + /* Set j to the smallest of the two sons: */ + if (j < s->heap_len && + smaller(tree, s->heap[j+1], s->heap[j], s->depth)) { + j++; + } + /* Exit if v is smaller than both sons */ + if (smaller(tree, v, s->heap[j], s->depth)) break; + + /* Exchange v with the smallest son */ + s->heap[k] = s->heap[j]; k = j; + + /* And continue down the tree, setting j to the left son of k */ + j <<= 1; + } + s->heap[k] = v; +} + +/* =========================================================================== + * Compute the optimal bit lengths for a tree and update the total bit length + * for the current block. + * IN assertion: the fields freq and dad are set, heap[heap_max] and + * above are the tree nodes sorted by increasing frequency. + * OUT assertions: the field len is set to the optimal bit length, the + * array bl_count contains the frequencies for each bit length. + * The length opt_len is updated; static_len is also updated if stree is + * not null. + */ +local void gen_bitlen(s, desc) + deflate_state *s; + tree_desc *desc; /* the tree descriptor */ +{ + ct_data *tree = desc->dyn_tree; + int max_code = desc->max_code; + const ct_data *stree = desc->stat_desc->static_tree; + const intf *extra = desc->stat_desc->extra_bits; + int base = desc->stat_desc->extra_base; + int max_length = desc->stat_desc->max_length; + int h; /* heap index */ + int n, m; /* iterate over the tree elements */ + int bits; /* bit length */ + int xbits; /* extra bits */ + ush f; /* frequency */ + int overflow = 0; /* number of elements with bit length too large */ + + for (bits = 0; bits <= MAX_BITS; bits++) s->bl_count[bits] = 0; + + /* In a first pass, compute the optimal bit lengths (which may + * overflow in the case of the bit length tree). + */ + tree[s->heap[s->heap_max]].Len = 0; /* root of the heap */ + + for (h = s->heap_max+1; h < HEAP_SIZE; h++) { + n = s->heap[h]; + bits = tree[tree[n].Dad].Len + 1; + if (bits > max_length) bits = max_length, overflow++; + tree[n].Len = (ush)bits; + /* We overwrite tree[n].Dad which is no longer needed */ + + if (n > max_code) continue; /* not a leaf node */ + + s->bl_count[bits]++; + xbits = 0; + if (n >= base) xbits = extra[n-base]; + f = tree[n].Freq; + s->opt_len += (ulg)f * (bits + xbits); + if (stree) s->static_len += (ulg)f * (stree[n].Len + xbits); + } + if (overflow == 0) return; + + Trace((stderr,"\nbit length overflow\n")); + /* This happens for example on obj2 and pic of the Calgary corpus */ + + /* Find the first bit length which could increase: */ + do { + bits = max_length-1; + while (s->bl_count[bits] == 0) bits--; + s->bl_count[bits]--; /* move one leaf down the tree */ + s->bl_count[bits+1] += 2; /* move one overflow item as its brother */ + s->bl_count[max_length]--; + /* The brother of the overflow item also moves one step up, + * but this does not affect bl_count[max_length] + */ + overflow -= 2; + } while (overflow > 0); + + /* Now recompute all bit lengths, scanning in increasing frequency. + * h is still equal to HEAP_SIZE. (It is simpler to reconstruct all + * lengths instead of fixing only the wrong ones. This idea is taken + * from 'ar' written by Haruhiko Okumura.) + */ + for (bits = max_length; bits != 0; bits--) { + n = s->bl_count[bits]; + while (n != 0) { + m = s->heap[--h]; + if (m > max_code) continue; + if ((unsigned) tree[m].Len != (unsigned) bits) { + Trace((stderr,"code %d bits %d->%d\n", m, tree[m].Len, bits)); + s->opt_len += ((long)bits - (long)tree[m].Len) + *(long)tree[m].Freq; + tree[m].Len = (ush)bits; + } + n--; + } + } +} + +/* =========================================================================== + * Generate the codes for a given tree and bit counts (which need not be + * optimal). + * IN assertion: the array bl_count contains the bit length statistics for + * the given tree and the field len is set for all tree elements. + * OUT assertion: the field code is set for all tree elements of non + * zero code length. + */ +local void gen_codes (tree, max_code, bl_count) + ct_data *tree; /* the tree to decorate */ + int max_code; /* largest code with non zero frequency */ + ushf *bl_count; /* number of codes at each bit length */ +{ + ush next_code[MAX_BITS+1]; /* next code value for each bit length */ + ush code = 0; /* running code value */ + int bits; /* bit index */ + int n; /* code index */ + + /* The distribution counts are first used to generate the code values + * without bit reversal. + */ + for (bits = 1; bits <= MAX_BITS; bits++) { + next_code[bits] = code = (code + bl_count[bits-1]) << 1; + } + /* Check that the bit counts in bl_count are consistent. The last code + * must be all ones. + */ + Assert (code + bl_count[MAX_BITS]-1 == (1<dyn_tree; + const ct_data *stree = desc->stat_desc->static_tree; + int elems = desc->stat_desc->elems; + int n, m; /* iterate over heap elements */ + int max_code = -1; /* largest code with non zero frequency */ + int node; /* new node being created */ + + /* Construct the initial heap, with least frequent element in + * heap[SMALLEST]. The sons of heap[n] are heap[2*n] and heap[2*n+1]. + * heap[0] is not used. + */ + s->heap_len = 0, s->heap_max = HEAP_SIZE; + + for (n = 0; n < elems; n++) { + if (tree[n].Freq != 0) { + s->heap[++(s->heap_len)] = max_code = n; + s->depth[n] = 0; + } else { + tree[n].Len = 0; + } + } + + /* The pkzip format requires that at least one distance code exists, + * and that at least one bit should be sent even if there is only one + * possible code. So to avoid special checks later on we force at least + * two codes of non zero frequency. + */ + while (s->heap_len < 2) { + node = s->heap[++(s->heap_len)] = (max_code < 2 ? ++max_code : 0); + tree[node].Freq = 1; + s->depth[node] = 0; + s->opt_len--; if (stree) s->static_len -= stree[node].Len; + /* node is 0 or 1 so it does not have extra bits */ + } + desc->max_code = max_code; + + /* The elements heap[heap_len/2+1 .. heap_len] are leaves of the tree, + * establish sub-heaps of increasing lengths: + */ + for (n = s->heap_len/2; n >= 1; n--) pqdownheap(s, tree, n); + + /* Construct the Huffman tree by repeatedly combining the least two + * frequent nodes. + */ + node = elems; /* next internal node of the tree */ + do { + pqremove(s, tree, n); /* n = node of least frequency */ + m = s->heap[SMALLEST]; /* m = node of next least frequency */ + + s->heap[--(s->heap_max)] = n; /* keep the nodes sorted by frequency */ + s->heap[--(s->heap_max)] = m; + + /* Create a new node father of n and m */ + tree[node].Freq = tree[n].Freq + tree[m].Freq; + s->depth[node] = (uch)((s->depth[n] >= s->depth[m] ? + s->depth[n] : s->depth[m]) + 1); + tree[n].Dad = tree[m].Dad = (ush)node; +#ifdef DUMP_BL_TREE + if (tree == s->bl_tree) { + fprintf(stderr,"\nnode %d(%d), sons %d(%d) %d(%d)", + node, tree[node].Freq, n, tree[n].Freq, m, tree[m].Freq); + } +#endif + /* and insert the new node in the heap */ + s->heap[SMALLEST] = node++; + pqdownheap(s, tree, SMALLEST); + + } while (s->heap_len >= 2); + + s->heap[--(s->heap_max)] = s->heap[SMALLEST]; + + /* At this point, the fields freq and dad are set. We can now + * generate the bit lengths. + */ + gen_bitlen(s, (tree_desc *)desc); + + /* The field len is now set, we can generate the bit codes */ + gen_codes ((ct_data *)tree, max_code, s->bl_count); +} + +/* =========================================================================== + * Scan a literal or distance tree to determine the frequencies of the codes + * in the bit length tree. + */ +local void scan_tree (s, tree, max_code) + deflate_state *s; + ct_data *tree; /* the tree to be scanned */ + int max_code; /* and its largest code of non zero frequency */ +{ + int n; /* iterates over all tree elements */ + int prevlen = -1; /* last emitted length */ + int curlen; /* length of current code */ + int nextlen = tree[0].Len; /* length of next code */ + int count = 0; /* repeat count of the current code */ + int max_count = 7; /* max repeat count */ + int min_count = 4; /* min repeat count */ + + if (nextlen == 0) max_count = 138, min_count = 3; + tree[max_code+1].Len = (ush)0xffff; /* guard */ + + for (n = 0; n <= max_code; n++) { + curlen = nextlen; nextlen = tree[n+1].Len; + if (++count < max_count && curlen == nextlen) { + continue; + } else if (count < min_count) { + s->bl_tree[curlen].Freq += count; + } else if (curlen != 0) { + if (curlen != prevlen) s->bl_tree[curlen].Freq++; + s->bl_tree[REP_3_6].Freq++; + } else if (count <= 10) { + s->bl_tree[REPZ_3_10].Freq++; + } else { + s->bl_tree[REPZ_11_138].Freq++; + } + count = 0; prevlen = curlen; + if (nextlen == 0) { + max_count = 138, min_count = 3; + } else if (curlen == nextlen) { + max_count = 6, min_count = 3; + } else { + max_count = 7, min_count = 4; + } + } +} + +/* =========================================================================== + * Send a literal or distance tree in compressed form, using the codes in + * bl_tree. + */ +local void send_tree (s, tree, max_code) + deflate_state *s; + ct_data *tree; /* the tree to be scanned */ + int max_code; /* and its largest code of non zero frequency */ +{ + int n; /* iterates over all tree elements */ + int prevlen = -1; /* last emitted length */ + int curlen; /* length of current code */ + int nextlen = tree[0].Len; /* length of next code */ + int count = 0; /* repeat count of the current code */ + int max_count = 7; /* max repeat count */ + int min_count = 4; /* min repeat count */ + + /* tree[max_code+1].Len = -1; */ /* guard already set */ + if (nextlen == 0) max_count = 138, min_count = 3; + + for (n = 0; n <= max_code; n++) { + curlen = nextlen; nextlen = tree[n+1].Len; + if (++count < max_count && curlen == nextlen) { + continue; + } else if (count < min_count) { + do { send_code(s, curlen, s->bl_tree); } while (--count != 0); + + } else if (curlen != 0) { + if (curlen != prevlen) { + send_code(s, curlen, s->bl_tree); count--; + } + Assert(count >= 3 && count <= 6, " 3_6?"); + send_code(s, REP_3_6, s->bl_tree); send_bits(s, count-3, 2); + + } else if (count <= 10) { + send_code(s, REPZ_3_10, s->bl_tree); send_bits(s, count-3, 3); + + } else { + send_code(s, REPZ_11_138, s->bl_tree); send_bits(s, count-11, 7); + } + count = 0; prevlen = curlen; + if (nextlen == 0) { + max_count = 138, min_count = 3; + } else if (curlen == nextlen) { + max_count = 6, min_count = 3; + } else { + max_count = 7, min_count = 4; + } + } +} + +/* =========================================================================== + * Construct the Huffman tree for the bit lengths and return the index in + * bl_order of the last bit length code to send. + */ +local int build_bl_tree(s) + deflate_state *s; +{ + int max_blindex; /* index of last bit length code of non zero freq */ + + /* Determine the bit length frequencies for literal and distance trees */ + scan_tree(s, (ct_data *)s->dyn_ltree, s->l_desc.max_code); + scan_tree(s, (ct_data *)s->dyn_dtree, s->d_desc.max_code); + + /* Build the bit length tree: */ + build_tree(s, (tree_desc *)(&(s->bl_desc))); + /* opt_len now includes the length of the tree representations, except + * the lengths of the bit lengths codes and the 5+5+4 bits for the counts. + */ + + /* Determine the number of bit length codes to send. The pkzip format + * requires that at least 4 bit length codes be sent. (appnote.txt says + * 3 but the actual value used is 4.) + */ + for (max_blindex = BL_CODES-1; max_blindex >= 3; max_blindex--) { + if (s->bl_tree[bl_order[max_blindex]].Len != 0) break; + } + /* Update opt_len to include the bit length tree and counts */ + s->opt_len += 3*(max_blindex+1) + 5+5+4; + Tracev((stderr, "\ndyn trees: dyn %ld, stat %ld", + s->opt_len, s->static_len)); + + return max_blindex; +} + +/* =========================================================================== + * Send the header for a block using dynamic Huffman trees: the counts, the + * lengths of the bit length codes, the literal tree and the distance tree. + * IN assertion: lcodes >= 257, dcodes >= 1, blcodes >= 4. + */ +local void send_all_trees(s, lcodes, dcodes, blcodes) + deflate_state *s; + int lcodes, dcodes, blcodes; /* number of codes for each tree */ +{ + int rank; /* index in bl_order */ + + Assert (lcodes >= 257 && dcodes >= 1 && blcodes >= 4, "not enough codes"); + Assert (lcodes <= L_CODES && dcodes <= D_CODES && blcodes <= BL_CODES, + "too many codes"); + Tracev((stderr, "\nbl counts: ")); + send_bits(s, lcodes-257, 5); /* not +255 as stated in appnote.txt */ + send_bits(s, dcodes-1, 5); + send_bits(s, blcodes-4, 4); /* not -3 as stated in appnote.txt */ + for (rank = 0; rank < blcodes; rank++) { + Tracev((stderr, "\nbl code %2d ", bl_order[rank])); + send_bits(s, s->bl_tree[bl_order[rank]].Len, 3); + } + Tracev((stderr, "\nbl tree: sent %ld", s->bits_sent)); + + send_tree(s, (ct_data *)s->dyn_ltree, lcodes-1); /* literal tree */ + Tracev((stderr, "\nlit tree: sent %ld", s->bits_sent)); + + send_tree(s, (ct_data *)s->dyn_dtree, dcodes-1); /* distance tree */ + Tracev((stderr, "\ndist tree: sent %ld", s->bits_sent)); +} + +/* =========================================================================== + * Send a stored block + */ +void ZLIB_INTERNAL _tr_stored_block(s, buf, stored_len, last) + deflate_state *s; + charf *buf; /* input block */ + ulg stored_len; /* length of input block */ + int last; /* one if this is the last block for a file */ +{ + send_bits(s, (STORED_BLOCK<<1)+last, 3); /* send block type */ +#ifdef DEBUG + s->compressed_len = (s->compressed_len + 3 + 7) & (ulg)~7L; + s->compressed_len += (stored_len + 4) << 3; +#endif + copy_block(s, buf, (unsigned)stored_len, 1); /* with header */ +} + +/* =========================================================================== + * Send one empty static block to give enough lookahead for inflate. + * This takes 10 bits, of which 7 may remain in the bit buffer. + * The current inflate code requires 9 bits of lookahead. If the + * last two codes for the previous block (real code plus EOB) were coded + * on 5 bits or less, inflate may have only 5+3 bits of lookahead to decode + * the last real code. In this case we send two empty static blocks instead + * of one. (There are no problems if the previous block is stored or fixed.) + * To simplify the code, we assume the worst case of last real code encoded + * on one bit only. + */ +void ZLIB_INTERNAL _tr_align(s) + deflate_state *s; +{ + send_bits(s, STATIC_TREES<<1, 3); + send_code(s, END_BLOCK, static_ltree); +#ifdef DEBUG + s->compressed_len += 10L; /* 3 for block type, 7 for EOB */ +#endif + bi_flush(s); + /* Of the 10 bits for the empty block, we have already sent + * (10 - bi_valid) bits. The lookahead for the last real code (before + * the EOB of the previous block) was thus at least one plus the length + * of the EOB plus what we have just sent of the empty static block. + */ + if (1 + s->last_eob_len + 10 - s->bi_valid < 9) { + send_bits(s, STATIC_TREES<<1, 3); + send_code(s, END_BLOCK, static_ltree); +#ifdef DEBUG + s->compressed_len += 10L; +#endif + bi_flush(s); + } + s->last_eob_len = 7; +} + +/* =========================================================================== + * Determine the best encoding for the current block: dynamic trees, static + * trees or store, and output the encoded block to the zip file. + */ +void ZLIB_INTERNAL _tr_flush_block(s, buf, stored_len, last) + deflate_state *s; + charf *buf; /* input block, or NULL if too old */ + ulg stored_len; /* length of input block */ + int last; /* one if this is the last block for a file */ +{ + ulg opt_lenb, static_lenb; /* opt_len and static_len in bytes */ + int max_blindex = 0; /* index of last bit length code of non zero freq */ + + /* Build the Huffman trees unless a stored block is forced */ + if (s->level > 0) { + + /* Check if the file is binary or text */ + if (s->strm->data_type == Z_UNKNOWN) + s->strm->data_type = detect_data_type(s); + + /* Construct the literal and distance trees */ + build_tree(s, (tree_desc *)(&(s->l_desc))); + Tracev((stderr, "\nlit data: dyn %ld, stat %ld", s->opt_len, + s->static_len)); + + build_tree(s, (tree_desc *)(&(s->d_desc))); + Tracev((stderr, "\ndist data: dyn %ld, stat %ld", s->opt_len, + s->static_len)); + /* At this point, opt_len and static_len are the total bit lengths of + * the compressed block data, excluding the tree representations. + */ + + /* Build the bit length tree for the above two trees, and get the index + * in bl_order of the last bit length code to send. + */ + max_blindex = build_bl_tree(s); + + /* Determine the best encoding. Compute the block lengths in bytes. */ + opt_lenb = (s->opt_len+3+7)>>3; + static_lenb = (s->static_len+3+7)>>3; + + Tracev((stderr, "\nopt %lu(%lu) stat %lu(%lu) stored %lu lit %u ", + opt_lenb, s->opt_len, static_lenb, s->static_len, stored_len, + s->last_lit)); + + if (static_lenb <= opt_lenb) opt_lenb = static_lenb; + + } else { + Assert(buf != (char*)0, "lost buf"); + opt_lenb = static_lenb = stored_len + 5; /* force a stored block */ + } + +#ifdef FORCE_STORED + if (buf != (char*)0) { /* force stored block */ +#else + if (stored_len+4 <= opt_lenb && buf != (char*)0) { + /* 4: two words for the lengths */ +#endif + /* The test buf != NULL is only necessary if LIT_BUFSIZE > WSIZE. + * Otherwise we can't have processed more than WSIZE input bytes since + * the last block flush, because compression would have been + * successful. If LIT_BUFSIZE <= WSIZE, it is never too late to + * transform a block into a stored block. + */ + _tr_stored_block(s, buf, stored_len, last); + +#ifdef FORCE_STATIC + } else if (static_lenb >= 0) { /* force static trees */ +#else + } else if (s->strategy == Z_FIXED || static_lenb == opt_lenb) { +#endif + send_bits(s, (STATIC_TREES<<1)+last, 3); + compress_block(s, (ct_data *)static_ltree, (ct_data *)static_dtree); +#ifdef DEBUG + s->compressed_len += 3 + s->static_len; +#endif + } else { + send_bits(s, (DYN_TREES<<1)+last, 3); + send_all_trees(s, s->l_desc.max_code+1, s->d_desc.max_code+1, + max_blindex+1); + compress_block(s, (ct_data *)s->dyn_ltree, (ct_data *)s->dyn_dtree); +#ifdef DEBUG + s->compressed_len += 3 + s->opt_len; +#endif + } + Assert (s->compressed_len == s->bits_sent, "bad compressed size"); + /* The above check is made mod 2^32, for files larger than 512 MB + * and uLong implemented on 32 bits. + */ + init_block(s); + + if (last) { + bi_windup(s); +#ifdef DEBUG + s->compressed_len += 7; /* align on byte boundary */ +#endif + } + Tracev((stderr,"\ncomprlen %lu(%lu) ", s->compressed_len>>3, + s->compressed_len-7*last)); +} + +/* =========================================================================== + * Save the match info and tally the frequency counts. Return true if + * the current block must be flushed. + */ +int ZLIB_INTERNAL _tr_tally (s, dist, lc) + deflate_state *s; + unsigned dist; /* distance of matched string */ + unsigned lc; /* match length-MIN_MATCH or unmatched char (if dist==0) */ +{ + s->d_buf[s->last_lit] = (ush)dist; + s->l_buf[s->last_lit++] = (uch)lc; + if (dist == 0) { + /* lc is the unmatched char */ + s->dyn_ltree[lc].Freq++; + } else { + s->matches++; + /* Here, lc is the match length - MIN_MATCH */ + dist--; /* dist = match distance - 1 */ + Assert((ush)dist < (ush)MAX_DIST(s) && + (ush)lc <= (ush)(MAX_MATCH-MIN_MATCH) && + (ush)d_code(dist) < (ush)D_CODES, "_tr_tally: bad match"); + + s->dyn_ltree[_length_code[lc]+LITERALS+1].Freq++; + s->dyn_dtree[d_code(dist)].Freq++; + } + +#ifdef TRUNCATE_BLOCK + /* Try to guess if it is profitable to stop the current block here */ + if ((s->last_lit & 0x1fff) == 0 && s->level > 2) { + /* Compute an upper bound for the compressed length */ + ulg out_length = (ulg)s->last_lit*8L; + ulg in_length = (ulg)((long)s->strstart - s->block_start); + int dcode; + for (dcode = 0; dcode < D_CODES; dcode++) { + out_length += (ulg)s->dyn_dtree[dcode].Freq * + (5L+extra_dbits[dcode]); + } + out_length >>= 3; + Tracev((stderr,"\nlast_lit %u, in %ld, out ~%ld(%ld%%) ", + s->last_lit, in_length, out_length, + 100L - out_length*100L/in_length)); + if (s->matches < s->last_lit/2 && out_length < in_length/2) return 1; + } +#endif + return (s->last_lit == s->lit_bufsize-1); + /* We avoid equality with lit_bufsize because of wraparound at 64K + * on 16 bit machines and because stored blocks are restricted to + * 64K-1 bytes. + */ +} + +/* =========================================================================== + * Send the block data compressed using the given Huffman trees + */ +local void compress_block(s, ltree, dtree) + deflate_state *s; + ct_data *ltree; /* literal tree */ + ct_data *dtree; /* distance tree */ +{ + unsigned dist; /* distance of matched string */ + int lc; /* match length or unmatched char (if dist == 0) */ + unsigned lx = 0; /* running index in l_buf */ + unsigned code; /* the code to send */ + int extra; /* number of extra bits to send */ + + if (s->last_lit != 0) do { + dist = s->d_buf[lx]; + lc = s->l_buf[lx++]; + if (dist == 0) { + send_code(s, lc, ltree); /* send a literal byte */ + Tracecv(isgraph(lc), (stderr," '%c' ", lc)); + } else { + /* Here, lc is the match length - MIN_MATCH */ + code = _length_code[lc]; + send_code(s, code+LITERALS+1, ltree); /* send the length code */ + extra = extra_lbits[code]; + if (extra != 0) { + lc -= base_length[code]; + send_bits(s, lc, extra); /* send the extra length bits */ + } + dist--; /* dist is now the match distance - 1 */ + code = d_code(dist); + Assert (code < D_CODES, "bad d_code"); + + send_code(s, code, dtree); /* send the distance code */ + extra = extra_dbits[code]; + if (extra != 0) { + dist -= base_dist[code]; + send_bits(s, dist, extra); /* send the extra distance bits */ + } + } /* literal or match pair ? */ + + /* Check that the overlay between pending_buf and d_buf+l_buf is ok: */ + Assert((uInt)(s->pending) < s->lit_bufsize + 2*lx, + "pendingBuf overflow"); + + } while (lx < s->last_lit); + + send_code(s, END_BLOCK, ltree); + s->last_eob_len = ltree[END_BLOCK].Len; +} + +/* =========================================================================== + * Check if the data type is TEXT or BINARY, using the following algorithm: + * - TEXT if the two conditions below are satisfied: + * a) There are no non-portable control characters belonging to the + * "black list" (0..6, 14..25, 28..31). + * b) There is at least one printable character belonging to the + * "white list" (9 {TAB}, 10 {LF}, 13 {CR}, 32..255). + * - BINARY otherwise. + * - The following partially-portable control characters form a + * "gray list" that is ignored in this detection algorithm: + * (7 {BEL}, 8 {BS}, 11 {VT}, 12 {FF}, 26 {SUB}, 27 {ESC}). + * IN assertion: the fields Freq of dyn_ltree are set. + */ +local int detect_data_type(s) + deflate_state *s; +{ + /* black_mask is the bit mask of black-listed bytes + * set bits 0..6, 14..25, and 28..31 + * 0xf3ffc07f = binary 11110011111111111100000001111111 + */ + unsigned long black_mask = 0xf3ffc07fUL; + int n; + + /* Check for non-textual ("black-listed") bytes. */ + for (n = 0; n <= 31; n++, black_mask >>= 1) + if ((black_mask & 1) && (s->dyn_ltree[n].Freq != 0)) + return Z_BINARY; + + /* Check for textual ("white-listed") bytes. */ + if (s->dyn_ltree[9].Freq != 0 || s->dyn_ltree[10].Freq != 0 + || s->dyn_ltree[13].Freq != 0) + return Z_TEXT; + for (n = 32; n < LITERALS; n++) + if (s->dyn_ltree[n].Freq != 0) + return Z_TEXT; + + /* There are no "black-listed" or "white-listed" bytes: + * this stream either is empty or has tolerated ("gray-listed") bytes only. + */ + return Z_BINARY; +} + +/* =========================================================================== + * Reverse the first len bits of a code, using straightforward code (a faster + * method would use a table) + * IN assertion: 1 <= len <= 15 + */ +local unsigned bi_reverse(code, len) + unsigned code; /* the value to invert */ + int len; /* its bit length */ +{ + register unsigned res = 0; + do { + res |= code & 1; + code >>= 1, res <<= 1; + } while (--len > 0); + return res >> 1; +} + +/* =========================================================================== + * Flush the bit buffer, keeping at most 7 bits in it. + */ +local void bi_flush(s) + deflate_state *s; +{ + if (s->bi_valid == 16) { + put_short(s, s->bi_buf); + s->bi_buf = 0; + s->bi_valid = 0; + } else if (s->bi_valid >= 8) { + put_byte(s, (Byte)s->bi_buf); + s->bi_buf >>= 8; + s->bi_valid -= 8; + } +} + +/* =========================================================================== + * Flush the bit buffer and align the output on a byte boundary + */ +local void bi_windup(s) + deflate_state *s; +{ + if (s->bi_valid > 8) { + put_short(s, s->bi_buf); + } else if (s->bi_valid > 0) { + put_byte(s, (Byte)s->bi_buf); + } + s->bi_buf = 0; + s->bi_valid = 0; +#ifdef DEBUG + s->bits_sent = (s->bits_sent+7) & ~7; +#endif +} + +/* =========================================================================== + * Copy a stored block, storing first the length and its + * one's complement if requested. + */ +local void copy_block(s, buf, len, header) + deflate_state *s; + charf *buf; /* the input data */ + unsigned len; /* its length */ + int header; /* true if block header must be written */ +{ + bi_windup(s); /* align on byte boundary */ + s->last_eob_len = 8; /* enough lookahead for inflate */ + + if (header) { + put_short(s, (ush)len); + put_short(s, (ush)~len); +#ifdef DEBUG + s->bits_sent += 2*16; +#endif + } +#ifdef DEBUG + s->bits_sent += (ulg)len<<3; +#endif + while (len--) { + put_byte(s, *buf++); + } +} diff --git a/zlib/trees.h b/zlib/trees.h new file mode 100644 index 0000000..d35639d --- /dev/null +++ b/zlib/trees.h @@ -0,0 +1,128 @@ +/* header created automatically with -DGEN_TREES_H */ + +local const ct_data static_ltree[L_CODES+2] = { +{{ 12},{ 8}}, {{140},{ 8}}, {{ 76},{ 8}}, {{204},{ 8}}, {{ 44},{ 8}}, +{{172},{ 8}}, {{108},{ 8}}, {{236},{ 8}}, {{ 28},{ 8}}, {{156},{ 8}}, +{{ 92},{ 8}}, {{220},{ 8}}, {{ 60},{ 8}}, {{188},{ 8}}, {{124},{ 8}}, +{{252},{ 8}}, {{ 2},{ 8}}, {{130},{ 8}}, {{ 66},{ 8}}, {{194},{ 8}}, +{{ 34},{ 8}}, {{162},{ 8}}, {{ 98},{ 8}}, {{226},{ 8}}, {{ 18},{ 8}}, +{{146},{ 8}}, {{ 82},{ 8}}, {{210},{ 8}}, {{ 50},{ 8}}, {{178},{ 8}}, +{{114},{ 8}}, {{242},{ 8}}, {{ 10},{ 8}}, {{138},{ 8}}, {{ 74},{ 8}}, +{{202},{ 8}}, {{ 42},{ 8}}, {{170},{ 8}}, {{106},{ 8}}, {{234},{ 8}}, +{{ 26},{ 8}}, {{154},{ 8}}, {{ 90},{ 8}}, {{218},{ 8}}, {{ 58},{ 8}}, +{{186},{ 8}}, {{122},{ 8}}, {{250},{ 8}}, {{ 6},{ 8}}, {{134},{ 8}}, +{{ 70},{ 8}}, {{198},{ 8}}, {{ 38},{ 8}}, {{166},{ 8}}, {{102},{ 8}}, +{{230},{ 8}}, {{ 22},{ 8}}, {{150},{ 8}}, {{ 86},{ 8}}, {{214},{ 8}}, +{{ 54},{ 8}}, {{182},{ 8}}, {{118},{ 8}}, {{246},{ 8}}, {{ 14},{ 8}}, +{{142},{ 8}}, {{ 78},{ 8}}, {{206},{ 8}}, {{ 46},{ 8}}, {{174},{ 8}}, +{{110},{ 8}}, {{238},{ 8}}, {{ 30},{ 8}}, {{158},{ 8}}, {{ 94},{ 8}}, +{{222},{ 8}}, {{ 62},{ 8}}, {{190},{ 8}}, {{126},{ 8}}, {{254},{ 8}}, +{{ 1},{ 8}}, {{129},{ 8}}, {{ 65},{ 8}}, {{193},{ 8}}, {{ 33},{ 8}}, +{{161},{ 8}}, {{ 97},{ 8}}, {{225},{ 8}}, {{ 17},{ 8}}, {{145},{ 8}}, +{{ 81},{ 8}}, {{209},{ 8}}, {{ 49},{ 8}}, {{177},{ 8}}, {{113},{ 8}}, +{{241},{ 8}}, {{ 9},{ 8}}, {{137},{ 8}}, {{ 73},{ 8}}, {{201},{ 8}}, +{{ 41},{ 8}}, {{169},{ 8}}, {{105},{ 8}}, {{233},{ 8}}, {{ 25},{ 8}}, +{{153},{ 8}}, {{ 89},{ 8}}, {{217},{ 8}}, {{ 57},{ 8}}, {{185},{ 8}}, +{{121},{ 8}}, {{249},{ 8}}, {{ 5},{ 8}}, {{133},{ 8}}, {{ 69},{ 8}}, +{{197},{ 8}}, {{ 37},{ 8}}, {{165},{ 8}}, {{101},{ 8}}, {{229},{ 8}}, +{{ 21},{ 8}}, {{149},{ 8}}, {{ 85},{ 8}}, {{213},{ 8}}, {{ 53},{ 8}}, +{{181},{ 8}}, {{117},{ 8}}, {{245},{ 8}}, {{ 13},{ 8}}, {{141},{ 8}}, +{{ 77},{ 8}}, {{205},{ 8}}, {{ 45},{ 8}}, {{173},{ 8}}, {{109},{ 8}}, +{{237},{ 8}}, {{ 29},{ 8}}, {{157},{ 8}}, {{ 93},{ 8}}, {{221},{ 8}}, +{{ 61},{ 8}}, {{189},{ 8}}, {{125},{ 8}}, {{253},{ 8}}, {{ 19},{ 9}}, +{{275},{ 9}}, {{147},{ 9}}, {{403},{ 9}}, {{ 83},{ 9}}, {{339},{ 9}}, +{{211},{ 9}}, {{467},{ 9}}, {{ 51},{ 9}}, {{307},{ 9}}, {{179},{ 9}}, +{{435},{ 9}}, {{115},{ 9}}, {{371},{ 9}}, {{243},{ 9}}, {{499},{ 9}}, +{{ 11},{ 9}}, {{267},{ 9}}, {{139},{ 9}}, {{395},{ 9}}, {{ 75},{ 9}}, +{{331},{ 9}}, {{203},{ 9}}, {{459},{ 9}}, {{ 43},{ 9}}, {{299},{ 9}}, +{{171},{ 9}}, {{427},{ 9}}, {{107},{ 9}}, {{363},{ 9}}, {{235},{ 9}}, +{{491},{ 9}}, {{ 27},{ 9}}, {{283},{ 9}}, {{155},{ 9}}, {{411},{ 9}}, +{{ 91},{ 9}}, {{347},{ 9}}, {{219},{ 9}}, {{475},{ 9}}, {{ 59},{ 9}}, +{{315},{ 9}}, {{187},{ 9}}, {{443},{ 9}}, {{123},{ 9}}, {{379},{ 9}}, +{{251},{ 9}}, {{507},{ 9}}, {{ 7},{ 9}}, {{263},{ 9}}, {{135},{ 9}}, +{{391},{ 9}}, {{ 71},{ 9}}, {{327},{ 9}}, {{199},{ 9}}, {{455},{ 9}}, +{{ 39},{ 9}}, {{295},{ 9}}, {{167},{ 9}}, {{423},{ 9}}, {{103},{ 9}}, +{{359},{ 9}}, {{231},{ 9}}, {{487},{ 9}}, {{ 23},{ 9}}, {{279},{ 9}}, +{{151},{ 9}}, {{407},{ 9}}, {{ 87},{ 9}}, {{343},{ 9}}, {{215},{ 9}}, +{{471},{ 9}}, {{ 55},{ 9}}, {{311},{ 9}}, {{183},{ 9}}, {{439},{ 9}}, +{{119},{ 9}}, {{375},{ 9}}, {{247},{ 9}}, {{503},{ 9}}, {{ 15},{ 9}}, +{{271},{ 9}}, {{143},{ 9}}, {{399},{ 9}}, {{ 79},{ 9}}, {{335},{ 9}}, +{{207},{ 9}}, {{463},{ 9}}, {{ 47},{ 9}}, {{303},{ 9}}, {{175},{ 9}}, +{{431},{ 9}}, {{111},{ 9}}, {{367},{ 9}}, {{239},{ 9}}, {{495},{ 9}}, +{{ 31},{ 9}}, {{287},{ 9}}, {{159},{ 9}}, {{415},{ 9}}, {{ 95},{ 9}}, +{{351},{ 9}}, {{223},{ 9}}, {{479},{ 9}}, {{ 63},{ 9}}, {{319},{ 9}}, +{{191},{ 9}}, {{447},{ 9}}, {{127},{ 9}}, {{383},{ 9}}, {{255},{ 9}}, +{{511},{ 9}}, {{ 0},{ 7}}, {{ 64},{ 7}}, {{ 32},{ 7}}, {{ 96},{ 7}}, +{{ 16},{ 7}}, {{ 80},{ 7}}, {{ 48},{ 7}}, {{112},{ 7}}, {{ 8},{ 7}}, +{{ 72},{ 7}}, {{ 40},{ 7}}, {{104},{ 7}}, {{ 24},{ 7}}, {{ 88},{ 7}}, +{{ 56},{ 7}}, {{120},{ 7}}, {{ 4},{ 7}}, {{ 68},{ 7}}, {{ 36},{ 7}}, +{{100},{ 7}}, {{ 20},{ 7}}, {{ 84},{ 7}}, {{ 52},{ 7}}, {{116},{ 7}}, +{{ 3},{ 8}}, {{131},{ 8}}, {{ 67},{ 8}}, {{195},{ 8}}, {{ 35},{ 8}}, +{{163},{ 8}}, {{ 99},{ 8}}, {{227},{ 8}} +}; + +local const ct_data static_dtree[D_CODES] = { +{{ 0},{ 5}}, {{16},{ 5}}, {{ 8},{ 5}}, {{24},{ 5}}, {{ 4},{ 5}}, +{{20},{ 5}}, {{12},{ 5}}, {{28},{ 5}}, {{ 2},{ 5}}, {{18},{ 5}}, +{{10},{ 5}}, {{26},{ 5}}, {{ 6},{ 5}}, {{22},{ 5}}, {{14},{ 5}}, +{{30},{ 5}}, {{ 1},{ 5}}, {{17},{ 5}}, {{ 9},{ 5}}, {{25},{ 5}}, +{{ 5},{ 5}}, {{21},{ 5}}, {{13},{ 5}}, {{29},{ 5}}, {{ 3},{ 5}}, +{{19},{ 5}}, {{11},{ 5}}, {{27},{ 5}}, {{ 7},{ 5}}, {{23},{ 5}} +}; + +const uch ZLIB_INTERNAL _dist_code[DIST_CODE_LEN] = { + 0, 1, 2, 3, 4, 4, 5, 5, 6, 6, 6, 6, 7, 7, 7, 7, 8, 8, 8, 8, + 8, 8, 8, 8, 9, 9, 9, 9, 9, 9, 9, 9, 10, 10, 10, 10, 10, 10, 10, 10, +10, 10, 10, 10, 10, 10, 10, 10, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, +11, 11, 11, 11, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, +12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 13, 13, 13, 13, +13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, +13, 13, 13, 13, 13, 13, 13, 13, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, +14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, +14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, +14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 15, 15, 15, 15, 15, 15, 15, 15, +15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, +15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, +15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 0, 0, 16, 17, +18, 18, 19, 19, 20, 20, 20, 20, 21, 21, 21, 21, 22, 22, 22, 22, 22, 22, 22, 22, +23, 23, 23, 23, 23, 23, 23, 23, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, +24, 24, 24, 24, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, +26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, +26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 27, 27, 27, 27, 27, 27, 27, 27, +27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, +27, 27, 27, 27, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, +28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, +28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, +28, 28, 28, 28, 28, 28, 28, 28, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, +29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, +29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, +29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29 +}; + +const uch ZLIB_INTERNAL _length_code[MAX_MATCH-MIN_MATCH+1]= { + 0, 1, 2, 3, 4, 5, 6, 7, 8, 8, 9, 9, 10, 10, 11, 11, 12, 12, 12, 12, +13, 13, 13, 13, 14, 14, 14, 14, 15, 15, 15, 15, 16, 16, 16, 16, 16, 16, 16, 16, +17, 17, 17, 17, 17, 17, 17, 17, 18, 18, 18, 18, 18, 18, 18, 18, 19, 19, 19, 19, +19, 19, 19, 19, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, +21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 22, 22, 22, 22, +22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 23, 23, 23, 23, 23, 23, 23, 23, +23, 23, 23, 23, 23, 23, 23, 23, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, +24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, +25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, +25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 26, 26, 26, 26, 26, 26, 26, 26, +26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, +26, 26, 26, 26, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, +27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 28 +}; + +local const int base_length[LENGTH_CODES] = { +0, 1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 16, 20, 24, 28, 32, 40, 48, 56, +64, 80, 96, 112, 128, 160, 192, 224, 0 +}; + +local const int base_dist[D_CODES] = { + 0, 1, 2, 3, 4, 6, 8, 12, 16, 24, + 32, 48, 64, 96, 128, 192, 256, 384, 512, 768, + 1024, 1536, 2048, 3072, 4096, 6144, 8192, 12288, 16384, 24576 +}; + diff --git a/zlib/uncompr.c b/zlib/uncompr.c new file mode 100644 index 0000000..ad98be3 --- /dev/null +++ b/zlib/uncompr.c @@ -0,0 +1,59 @@ +/* uncompr.c -- decompress a memory buffer + * Copyright (C) 1995-2003, 2010 Jean-loup Gailly. + * For conditions of distribution and use, see copyright notice in zlib.h + */ + +/* @(#) $Id$ */ + +#define ZLIB_INTERNAL +#include "zlib.h" + +/* =========================================================================== + Decompresses the source buffer into the destination buffer. sourceLen is + the byte length of the source buffer. Upon entry, destLen is the total + size of the destination buffer, which must be large enough to hold the + entire uncompressed data. (The size of the uncompressed data must have + been saved previously by the compressor and transmitted to the decompressor + by some mechanism outside the scope of this compression library.) + Upon exit, destLen is the actual size of the compressed buffer. + + uncompress returns Z_OK if success, Z_MEM_ERROR if there was not + enough memory, Z_BUF_ERROR if there was not enough room in the output + buffer, or Z_DATA_ERROR if the input data was corrupted. +*/ +int ZEXPORT uncompress (dest, destLen, source, sourceLen) + Bytef *dest; + uLongf *destLen; + const Bytef *source; + uLong sourceLen; +{ + z_stream stream; + int err; + + stream.next_in = (Bytef*)source; + stream.avail_in = (uInt)sourceLen; + /* Check for source > 64K on 16-bit machine: */ + if ((uLong)stream.avail_in != sourceLen) return Z_BUF_ERROR; + + stream.next_out = dest; + stream.avail_out = (uInt)*destLen; + if ((uLong)stream.avail_out != *destLen) return Z_BUF_ERROR; + + stream.zalloc = (alloc_func)0; + stream.zfree = (free_func)0; + + err = inflateInit(&stream); + if (err != Z_OK) return err; + + err = inflate(&stream, Z_FINISH); + if (err != Z_STREAM_END) { + inflateEnd(&stream); + if (err == Z_NEED_DICT || (err == Z_BUF_ERROR && stream.avail_in == 0)) + return Z_DATA_ERROR; + return err; + } + *destLen = stream.total_out; + + err = inflateEnd(&stream); + return err; +} diff --git a/zlib/zconf.h b/zlib/zconf.h new file mode 100644 index 0000000..02ce56c --- /dev/null +++ b/zlib/zconf.h @@ -0,0 +1,428 @@ +/* zconf.h -- configuration of the zlib compression library + * Copyright (C) 1995-2010 Jean-loup Gailly. + * For conditions of distribution and use, see copyright notice in zlib.h + */ + +/* @(#) $Id$ */ + +#ifndef ZCONF_H +#define ZCONF_H + +/* + * If you *really* need a unique prefix for all types and library functions, + * compile with -DZ_PREFIX. The "standard" zlib should be compiled without it. + * Even better than compiling with -DZ_PREFIX would be to use configure to set + * this permanently in zconf.h using "./configure --zprefix". + */ +#ifdef Z_PREFIX /* may be set to #if 1 by ./configure */ + +/* all linked symbols */ +# define _dist_code z__dist_code +# define _length_code z__length_code +# define _tr_align z__tr_align +# define _tr_flush_block z__tr_flush_block +# define _tr_init z__tr_init +# define _tr_stored_block z__tr_stored_block +# define _tr_tally z__tr_tally +# define adler32 z_adler32 +# define adler32_combine z_adler32_combine +# define adler32_combine64 z_adler32_combine64 +# define compress z_compress +# define compress2 z_compress2 +# define compressBound z_compressBound +# define crc32 z_crc32 +# define crc32_combine z_crc32_combine +# define crc32_combine64 z_crc32_combine64 +# define deflate z_deflate +# define deflateBound z_deflateBound +# define deflateCopy z_deflateCopy +# define deflateEnd z_deflateEnd +# define deflateInit2_ z_deflateInit2_ +# define deflateInit_ z_deflateInit_ +# define deflateParams z_deflateParams +# define deflatePrime z_deflatePrime +# define deflateReset z_deflateReset +# define deflateSetDictionary z_deflateSetDictionary +# define deflateSetHeader z_deflateSetHeader +# define deflateTune z_deflateTune +# define deflate_copyright z_deflate_copyright +# define get_crc_table z_get_crc_table +# define gz_error z_gz_error +# define gz_intmax z_gz_intmax +# define gz_strwinerror z_gz_strwinerror +# define gzbuffer z_gzbuffer +# define gzclearerr z_gzclearerr +# define gzclose z_gzclose +# define gzclose_r z_gzclose_r +# define gzclose_w z_gzclose_w +# define gzdirect z_gzdirect +# define gzdopen z_gzdopen +# define gzeof z_gzeof +# define gzerror z_gzerror +# define gzflush z_gzflush +# define gzgetc z_gzgetc +# define gzgets z_gzgets +# define gzoffset z_gzoffset +# define gzoffset64 z_gzoffset64 +# define gzopen z_gzopen +# define gzopen64 z_gzopen64 +# define gzprintf z_gzprintf +# define gzputc z_gzputc +# define gzputs z_gzputs +# define gzread z_gzread +# define gzrewind z_gzrewind +# define gzseek z_gzseek +# define gzseek64 z_gzseek64 +# define gzsetparams z_gzsetparams +# define gztell z_gztell +# define gztell64 z_gztell64 +# define gzungetc z_gzungetc +# define gzwrite z_gzwrite +# define inflate z_inflate +# define inflateBack z_inflateBack +# define inflateBackEnd z_inflateBackEnd +# define inflateBackInit_ z_inflateBackInit_ +# define inflateCopy z_inflateCopy +# define inflateEnd z_inflateEnd +# define inflateGetHeader z_inflateGetHeader +# define inflateInit2_ z_inflateInit2_ +# define inflateInit_ z_inflateInit_ +# define inflateMark z_inflateMark +# define inflatePrime z_inflatePrime +# define inflateReset z_inflateReset +# define inflateReset2 z_inflateReset2 +# define inflateSetDictionary z_inflateSetDictionary +# define inflateSync z_inflateSync +# define inflateSyncPoint z_inflateSyncPoint +# define inflateUndermine z_inflateUndermine +# define inflate_copyright z_inflate_copyright +# define inflate_fast z_inflate_fast +# define inflate_table z_inflate_table +# define uncompress z_uncompress +# define zError z_zError +# define zcalloc z_zcalloc +# define zcfree z_zcfree +# define zlibCompileFlags z_zlibCompileFlags +# define zlibVersion z_zlibVersion + +/* all zlib typedefs in zlib.h and zconf.h */ +# define Byte z_Byte +# define Bytef z_Bytef +# define alloc_func z_alloc_func +# define charf z_charf +# define free_func z_free_func +# define gzFile z_gzFile +# define gz_header z_gz_header +# define gz_headerp z_gz_headerp +# define in_func z_in_func +# define intf z_intf +# define out_func z_out_func +# define uInt z_uInt +# define uIntf z_uIntf +# define uLong z_uLong +# define uLongf z_uLongf +# define voidp z_voidp +# define voidpc z_voidpc +# define voidpf z_voidpf + +/* all zlib structs in zlib.h and zconf.h */ +# define gz_header_s z_gz_header_s +# define internal_state z_internal_state + +#endif + +#if defined(__MSDOS__) && !defined(MSDOS) +# define MSDOS +#endif +#if (defined(OS_2) || defined(__OS2__)) && !defined(OS2) +# define OS2 +#endif +#if defined(_WINDOWS) && !defined(WINDOWS) +# define WINDOWS +#endif +#if defined(_WIN32) || defined(_WIN32_WCE) || defined(__WIN32__) +# ifndef WIN32 +# define WIN32 +# endif +#endif +#if (defined(MSDOS) || defined(OS2) || defined(WINDOWS)) && !defined(WIN32) +# if !defined(__GNUC__) && !defined(__FLAT__) && !defined(__386__) +# ifndef SYS16BIT +# define SYS16BIT +# endif +# endif +#endif + +/* + * Compile with -DMAXSEG_64K if the alloc function cannot allocate more + * than 64k bytes at a time (needed on systems with 16-bit int). + */ +#ifdef SYS16BIT +# define MAXSEG_64K +#endif +#ifdef MSDOS +# define UNALIGNED_OK +#endif + +#ifdef __STDC_VERSION__ +# ifndef STDC +# define STDC +# endif +# if __STDC_VERSION__ >= 199901L +# ifndef STDC99 +# define STDC99 +# endif +# endif +#endif +#if !defined(STDC) && (defined(__STDC__) || defined(__cplusplus)) +# define STDC +#endif +#if !defined(STDC) && (defined(__GNUC__) || defined(__BORLANDC__)) +# define STDC +#endif +#if !defined(STDC) && (defined(MSDOS) || defined(WINDOWS) || defined(WIN32)) +# define STDC +#endif +#if !defined(STDC) && (defined(OS2) || defined(__HOS_AIX__)) +# define STDC +#endif + +#if defined(__OS400__) && !defined(STDC) /* iSeries (formerly AS/400). */ +# define STDC +#endif + +#ifndef STDC +# ifndef const /* cannot use !defined(STDC) && !defined(const) on Mac */ +# define const /* note: need a more gentle solution here */ +# endif +#endif + +/* Some Mac compilers merge all .h files incorrectly: */ +#if defined(__MWERKS__)||defined(applec)||defined(THINK_C)||defined(__SC__) +# define NO_DUMMY_DECL +#endif + +/* Maximum value for memLevel in deflateInit2 */ +#ifndef MAX_MEM_LEVEL +# ifdef MAXSEG_64K +# define MAX_MEM_LEVEL 8 +# else +# define MAX_MEM_LEVEL 9 +# endif +#endif + +/* Maximum value for windowBits in deflateInit2 and inflateInit2. + * WARNING: reducing MAX_WBITS makes minigzip unable to extract .gz files + * created by gzip. (Files created by minigzip can still be extracted by + * gzip.) + */ +#ifndef MAX_WBITS +# define MAX_WBITS 15 /* 32K LZ77 window */ +#endif + +/* The memory requirements for deflate are (in bytes): + (1 << (windowBits+2)) + (1 << (memLevel+9)) + that is: 128K for windowBits=15 + 128K for memLevel = 8 (default values) + plus a few kilobytes for small objects. For example, if you want to reduce + the default memory requirements from 256K to 128K, compile with + make CFLAGS="-O -DMAX_WBITS=14 -DMAX_MEM_LEVEL=7" + Of course this will generally degrade compression (there's no free lunch). + + The memory requirements for inflate are (in bytes) 1 << windowBits + that is, 32K for windowBits=15 (default value) plus a few kilobytes + for small objects. +*/ + + /* Type declarations */ + +#ifndef OF /* function prototypes */ +# ifdef STDC +# define OF(args) args +# else +# define OF(args) () +# endif +#endif + +/* The following definitions for FAR are needed only for MSDOS mixed + * model programming (small or medium model with some far allocations). + * This was tested only with MSC; for other MSDOS compilers you may have + * to define NO_MEMCPY in zutil.h. If you don't need the mixed model, + * just define FAR to be empty. + */ +#ifdef SYS16BIT +# if defined(M_I86SM) || defined(M_I86MM) + /* MSC small or medium model */ +# define SMALL_MEDIUM +# ifdef _MSC_VER +# define FAR _far +# else +# define FAR far +# endif +# endif +# if (defined(__SMALL__) || defined(__MEDIUM__)) + /* Turbo C small or medium model */ +# define SMALL_MEDIUM +# ifdef __BORLANDC__ +# define FAR _far +# else +# define FAR far +# endif +# endif +#endif + +#if defined(WINDOWS) || defined(WIN32) + /* If building or using zlib as a DLL, define ZLIB_DLL. + * This is not mandatory, but it offers a little performance increase. + */ +# ifdef ZLIB_DLL +# if defined(WIN32) && (!defined(__BORLANDC__) || (__BORLANDC__ >= 0x500)) +# ifdef ZLIB_INTERNAL +# define ZEXTERN extern __declspec(dllexport) +# else +# define ZEXTERN extern __declspec(dllimport) +# endif +# endif +# endif /* ZLIB_DLL */ + /* If building or using zlib with the WINAPI/WINAPIV calling convention, + * define ZLIB_WINAPI. + * Caution: the standard ZLIB1.DLL is NOT compiled using ZLIB_WINAPI. + */ +# ifdef ZLIB_WINAPI +# ifdef FAR +# undef FAR +# endif +# include + /* No need for _export, use ZLIB.DEF instead. */ + /* For complete Windows compatibility, use WINAPI, not __stdcall. */ +# define ZEXPORT WINAPI +# ifdef WIN32 +# define ZEXPORTVA WINAPIV +# else +# define ZEXPORTVA FAR CDECL +# endif +# endif +#endif + +#if defined (__BEOS__) +# ifdef ZLIB_DLL +# ifdef ZLIB_INTERNAL +# define ZEXPORT __declspec(dllexport) +# define ZEXPORTVA __declspec(dllexport) +# else +# define ZEXPORT __declspec(dllimport) +# define ZEXPORTVA __declspec(dllimport) +# endif +# endif +#endif + +#ifndef ZEXTERN +# define ZEXTERN extern +#endif +#ifndef ZEXPORT +# define ZEXPORT +#endif +#ifndef ZEXPORTVA +# define ZEXPORTVA +#endif + +#ifndef FAR +# define FAR +#endif + +#if !defined(__MACTYPES__) +typedef unsigned char Byte; /* 8 bits */ +#endif +typedef unsigned int uInt; /* 16 bits or more */ +typedef unsigned long uLong; /* 32 bits or more */ + +#ifdef SMALL_MEDIUM + /* Borland C/C++ and some old MSC versions ignore FAR inside typedef */ +# define Bytef Byte FAR +#else + typedef Byte FAR Bytef; +#endif +typedef char FAR charf; +typedef int FAR intf; +typedef uInt FAR uIntf; +typedef uLong FAR uLongf; + +#ifdef STDC + typedef void const *voidpc; + typedef void FAR *voidpf; + typedef void *voidp; +#else + typedef Byte const *voidpc; + typedef Byte FAR *voidpf; + typedef Byte *voidp; +#endif + +#ifdef HAVE_UNISTD_H /* may be set to #if 1 by ./configure */ +# define Z_HAVE_UNISTD_H +#endif + +#ifdef STDC +# include /* for off_t */ +#endif + +/* a little trick to accommodate both "#define _LARGEFILE64_SOURCE" and + * "#define _LARGEFILE64_SOURCE 1" as requesting 64-bit operations, (even + * though the former does not conform to the LFS document), but considering + * both "#undef _LARGEFILE64_SOURCE" and "#define _LARGEFILE64_SOURCE 0" as + * equivalently requesting no 64-bit operations + */ +#if -_LARGEFILE64_SOURCE - -1 == 1 +# undef _LARGEFILE64_SOURCE +#endif + +#if defined(Z_HAVE_UNISTD_H) || defined(_LARGEFILE64_SOURCE) +# include /* for SEEK_* and off_t */ +# ifdef VMS +# include /* for off_t */ +# endif +# ifndef z_off_t +# define z_off_t off_t +# endif +#endif + +#ifndef SEEK_SET +# define SEEK_SET 0 /* Seek from beginning of file. */ +# define SEEK_CUR 1 /* Seek from current position. */ +# define SEEK_END 2 /* Set file pointer to EOF plus "offset" */ +#endif + +#ifndef z_off_t +# define z_off_t long +#endif + +#if defined(_LARGEFILE64_SOURCE) && _LFS64_LARGEFILE-0 +# define z_off64_t off64_t +#else +# define z_off64_t z_off_t +#endif + +#if defined(__OS400__) +# define NO_vsnprintf +#endif + +#if defined(__MVS__) +# define NO_vsnprintf +#endif + +/* MVS linker does not support external names larger than 8 bytes */ +#if defined(__MVS__) + #pragma map(deflateInit_,"DEIN") + #pragma map(deflateInit2_,"DEIN2") + #pragma map(deflateEnd,"DEEND") + #pragma map(deflateBound,"DEBND") + #pragma map(inflateInit_,"ININ") + #pragma map(inflateInit2_,"ININ2") + #pragma map(inflateEnd,"INEND") + #pragma map(inflateSync,"INSY") + #pragma map(inflateSetDictionary,"INSEDI") + #pragma map(compressBound,"CMBND") + #pragma map(inflate_table,"INTABL") + #pragma map(inflate_fast,"INFA") + #pragma map(inflate_copyright,"INCOPY") +#endif + +#endif /* ZCONF_H */ diff --git a/zlib/zconf.h.cmakein b/zlib/zconf.h.cmakein new file mode 100644 index 0000000..a2f71b1 --- /dev/null +++ b/zlib/zconf.h.cmakein @@ -0,0 +1,430 @@ +/* zconf.h -- configuration of the zlib compression library + * Copyright (C) 1995-2010 Jean-loup Gailly. + * For conditions of distribution and use, see copyright notice in zlib.h + */ + +/* @(#) $Id$ */ + +#ifndef ZCONF_H +#define ZCONF_H +#cmakedefine Z_PREFIX +#cmakedefine Z_HAVE_UNISTD_H + +/* + * If you *really* need a unique prefix for all types and library functions, + * compile with -DZ_PREFIX. The "standard" zlib should be compiled without it. + * Even better than compiling with -DZ_PREFIX would be to use configure to set + * this permanently in zconf.h using "./configure --zprefix". + */ +#ifdef Z_PREFIX /* may be set to #if 1 by ./configure */ + +/* all linked symbols */ +# define _dist_code z__dist_code +# define _length_code z__length_code +# define _tr_align z__tr_align +# define _tr_flush_block z__tr_flush_block +# define _tr_init z__tr_init +# define _tr_stored_block z__tr_stored_block +# define _tr_tally z__tr_tally +# define adler32 z_adler32 +# define adler32_combine z_adler32_combine +# define adler32_combine64 z_adler32_combine64 +# define compress z_compress +# define compress2 z_compress2 +# define compressBound z_compressBound +# define crc32 z_crc32 +# define crc32_combine z_crc32_combine +# define crc32_combine64 z_crc32_combine64 +# define deflate z_deflate +# define deflateBound z_deflateBound +# define deflateCopy z_deflateCopy +# define deflateEnd z_deflateEnd +# define deflateInit2_ z_deflateInit2_ +# define deflateInit_ z_deflateInit_ +# define deflateParams z_deflateParams +# define deflatePrime z_deflatePrime +# define deflateReset z_deflateReset +# define deflateSetDictionary z_deflateSetDictionary +# define deflateSetHeader z_deflateSetHeader +# define deflateTune z_deflateTune +# define deflate_copyright z_deflate_copyright +# define get_crc_table z_get_crc_table +# define gz_error z_gz_error +# define gz_intmax z_gz_intmax +# define gz_strwinerror z_gz_strwinerror +# define gzbuffer z_gzbuffer +# define gzclearerr z_gzclearerr +# define gzclose z_gzclose +# define gzclose_r z_gzclose_r +# define gzclose_w z_gzclose_w +# define gzdirect z_gzdirect +# define gzdopen z_gzdopen +# define gzeof z_gzeof +# define gzerror z_gzerror +# define gzflush z_gzflush +# define gzgetc z_gzgetc +# define gzgets z_gzgets +# define gzoffset z_gzoffset +# define gzoffset64 z_gzoffset64 +# define gzopen z_gzopen +# define gzopen64 z_gzopen64 +# define gzprintf z_gzprintf +# define gzputc z_gzputc +# define gzputs z_gzputs +# define gzread z_gzread +# define gzrewind z_gzrewind +# define gzseek z_gzseek +# define gzseek64 z_gzseek64 +# define gzsetparams z_gzsetparams +# define gztell z_gztell +# define gztell64 z_gztell64 +# define gzungetc z_gzungetc +# define gzwrite z_gzwrite +# define inflate z_inflate +# define inflateBack z_inflateBack +# define inflateBackEnd z_inflateBackEnd +# define inflateBackInit_ z_inflateBackInit_ +# define inflateCopy z_inflateCopy +# define inflateEnd z_inflateEnd +# define inflateGetHeader z_inflateGetHeader +# define inflateInit2_ z_inflateInit2_ +# define inflateInit_ z_inflateInit_ +# define inflateMark z_inflateMark +# define inflatePrime z_inflatePrime +# define inflateReset z_inflateReset +# define inflateReset2 z_inflateReset2 +# define inflateSetDictionary z_inflateSetDictionary +# define inflateSync z_inflateSync +# define inflateSyncPoint z_inflateSyncPoint +# define inflateUndermine z_inflateUndermine +# define inflate_copyright z_inflate_copyright +# define inflate_fast z_inflate_fast +# define inflate_table z_inflate_table +# define uncompress z_uncompress +# define zError z_zError +# define zcalloc z_zcalloc +# define zcfree z_zcfree +# define zlibCompileFlags z_zlibCompileFlags +# define zlibVersion z_zlibVersion + +/* all zlib typedefs in zlib.h and zconf.h */ +# define Byte z_Byte +# define Bytef z_Bytef +# define alloc_func z_alloc_func +# define charf z_charf +# define free_func z_free_func +# define gzFile z_gzFile +# define gz_header z_gz_header +# define gz_headerp z_gz_headerp +# define in_func z_in_func +# define intf z_intf +# define out_func z_out_func +# define uInt z_uInt +# define uIntf z_uIntf +# define uLong z_uLong +# define uLongf z_uLongf +# define voidp z_voidp +# define voidpc z_voidpc +# define voidpf z_voidpf + +/* all zlib structs in zlib.h and zconf.h */ +# define gz_header_s z_gz_header_s +# define internal_state z_internal_state + +#endif + +#if defined(__MSDOS__) && !defined(MSDOS) +# define MSDOS +#endif +#if (defined(OS_2) || defined(__OS2__)) && !defined(OS2) +# define OS2 +#endif +#if defined(_WINDOWS) && !defined(WINDOWS) +# define WINDOWS +#endif +#if defined(_WIN32) || defined(_WIN32_WCE) || defined(__WIN32__) +# ifndef WIN32 +# define WIN32 +# endif +#endif +#if (defined(MSDOS) || defined(OS2) || defined(WINDOWS)) && !defined(WIN32) +# if !defined(__GNUC__) && !defined(__FLAT__) && !defined(__386__) +# ifndef SYS16BIT +# define SYS16BIT +# endif +# endif +#endif + +/* + * Compile with -DMAXSEG_64K if the alloc function cannot allocate more + * than 64k bytes at a time (needed on systems with 16-bit int). + */ +#ifdef SYS16BIT +# define MAXSEG_64K +#endif +#ifdef MSDOS +# define UNALIGNED_OK +#endif + +#ifdef __STDC_VERSION__ +# ifndef STDC +# define STDC +# endif +# if __STDC_VERSION__ >= 199901L +# ifndef STDC99 +# define STDC99 +# endif +# endif +#endif +#if !defined(STDC) && (defined(__STDC__) || defined(__cplusplus)) +# define STDC +#endif +#if !defined(STDC) && (defined(__GNUC__) || defined(__BORLANDC__)) +# define STDC +#endif +#if !defined(STDC) && (defined(MSDOS) || defined(WINDOWS) || defined(WIN32)) +# define STDC +#endif +#if !defined(STDC) && (defined(OS2) || defined(__HOS_AIX__)) +# define STDC +#endif + +#if defined(__OS400__) && !defined(STDC) /* iSeries (formerly AS/400). */ +# define STDC +#endif + +#ifndef STDC +# ifndef const /* cannot use !defined(STDC) && !defined(const) on Mac */ +# define const /* note: need a more gentle solution here */ +# endif +#endif + +/* Some Mac compilers merge all .h files incorrectly: */ +#if defined(__MWERKS__)||defined(applec)||defined(THINK_C)||defined(__SC__) +# define NO_DUMMY_DECL +#endif + +/* Maximum value for memLevel in deflateInit2 */ +#ifndef MAX_MEM_LEVEL +# ifdef MAXSEG_64K +# define MAX_MEM_LEVEL 8 +# else +# define MAX_MEM_LEVEL 9 +# endif +#endif + +/* Maximum value for windowBits in deflateInit2 and inflateInit2. + * WARNING: reducing MAX_WBITS makes minigzip unable to extract .gz files + * created by gzip. (Files created by minigzip can still be extracted by + * gzip.) + */ +#ifndef MAX_WBITS +# define MAX_WBITS 15 /* 32K LZ77 window */ +#endif + +/* The memory requirements for deflate are (in bytes): + (1 << (windowBits+2)) + (1 << (memLevel+9)) + that is: 128K for windowBits=15 + 128K for memLevel = 8 (default values) + plus a few kilobytes for small objects. For example, if you want to reduce + the default memory requirements from 256K to 128K, compile with + make CFLAGS="-O -DMAX_WBITS=14 -DMAX_MEM_LEVEL=7" + Of course this will generally degrade compression (there's no free lunch). + + The memory requirements for inflate are (in bytes) 1 << windowBits + that is, 32K for windowBits=15 (default value) plus a few kilobytes + for small objects. +*/ + + /* Type declarations */ + +#ifndef OF /* function prototypes */ +# ifdef STDC +# define OF(args) args +# else +# define OF(args) () +# endif +#endif + +/* The following definitions for FAR are needed only for MSDOS mixed + * model programming (small or medium model with some far allocations). + * This was tested only with MSC; for other MSDOS compilers you may have + * to define NO_MEMCPY in zutil.h. If you don't need the mixed model, + * just define FAR to be empty. + */ +#ifdef SYS16BIT +# if defined(M_I86SM) || defined(M_I86MM) + /* MSC small or medium model */ +# define SMALL_MEDIUM +# ifdef _MSC_VER +# define FAR _far +# else +# define FAR far +# endif +# endif +# if (defined(__SMALL__) || defined(__MEDIUM__)) + /* Turbo C small or medium model */ +# define SMALL_MEDIUM +# ifdef __BORLANDC__ +# define FAR _far +# else +# define FAR far +# endif +# endif +#endif + +#if defined(WINDOWS) || defined(WIN32) + /* If building or using zlib as a DLL, define ZLIB_DLL. + * This is not mandatory, but it offers a little performance increase. + */ +# ifdef ZLIB_DLL +# if defined(WIN32) && (!defined(__BORLANDC__) || (__BORLANDC__ >= 0x500)) +# ifdef ZLIB_INTERNAL +# define ZEXTERN extern __declspec(dllexport) +# else +# define ZEXTERN extern __declspec(dllimport) +# endif +# endif +# endif /* ZLIB_DLL */ + /* If building or using zlib with the WINAPI/WINAPIV calling convention, + * define ZLIB_WINAPI. + * Caution: the standard ZLIB1.DLL is NOT compiled using ZLIB_WINAPI. + */ +# ifdef ZLIB_WINAPI +# ifdef FAR +# undef FAR +# endif +# include + /* No need for _export, use ZLIB.DEF instead. */ + /* For complete Windows compatibility, use WINAPI, not __stdcall. */ +# define ZEXPORT WINAPI +# ifdef WIN32 +# define ZEXPORTVA WINAPIV +# else +# define ZEXPORTVA FAR CDECL +# endif +# endif +#endif + +#if defined (__BEOS__) +# ifdef ZLIB_DLL +# ifdef ZLIB_INTERNAL +# define ZEXPORT __declspec(dllexport) +# define ZEXPORTVA __declspec(dllexport) +# else +# define ZEXPORT __declspec(dllimport) +# define ZEXPORTVA __declspec(dllimport) +# endif +# endif +#endif + +#ifndef ZEXTERN +# define ZEXTERN extern +#endif +#ifndef ZEXPORT +# define ZEXPORT +#endif +#ifndef ZEXPORTVA +# define ZEXPORTVA +#endif + +#ifndef FAR +# define FAR +#endif + +#if !defined(__MACTYPES__) +typedef unsigned char Byte; /* 8 bits */ +#endif +typedef unsigned int uInt; /* 16 bits or more */ +typedef unsigned long uLong; /* 32 bits or more */ + +#ifdef SMALL_MEDIUM + /* Borland C/C++ and some old MSC versions ignore FAR inside typedef */ +# define Bytef Byte FAR +#else + typedef Byte FAR Bytef; +#endif +typedef char FAR charf; +typedef int FAR intf; +typedef uInt FAR uIntf; +typedef uLong FAR uLongf; + +#ifdef STDC + typedef void const *voidpc; + typedef void FAR *voidpf; + typedef void *voidp; +#else + typedef Byte const *voidpc; + typedef Byte FAR *voidpf; + typedef Byte *voidp; +#endif + +#ifdef HAVE_UNISTD_H /* may be set to #if 1 by ./configure */ +# define Z_HAVE_UNISTD_H +#endif + +#ifdef STDC +# include /* for off_t */ +#endif + +/* a little trick to accommodate both "#define _LARGEFILE64_SOURCE" and + * "#define _LARGEFILE64_SOURCE 1" as requesting 64-bit operations, (even + * though the former does not conform to the LFS document), but considering + * both "#undef _LARGEFILE64_SOURCE" and "#define _LARGEFILE64_SOURCE 0" as + * equivalently requesting no 64-bit operations + */ +#if -_LARGEFILE64_SOURCE - -1 == 1 +# undef _LARGEFILE64_SOURCE +#endif + +#if defined(Z_HAVE_UNISTD_H) || defined(_LARGEFILE64_SOURCE) +# include /* for SEEK_* and off_t */ +# ifdef VMS +# include /* for off_t */ +# endif +# ifndef z_off_t +# define z_off_t off_t +# endif +#endif + +#ifndef SEEK_SET +# define SEEK_SET 0 /* Seek from beginning of file. */ +# define SEEK_CUR 1 /* Seek from current position. */ +# define SEEK_END 2 /* Set file pointer to EOF plus "offset" */ +#endif + +#ifndef z_off_t +# define z_off_t long +#endif + +#if defined(_LARGEFILE64_SOURCE) && _LFS64_LARGEFILE-0 +# define z_off64_t off64_t +#else +# define z_off64_t z_off_t +#endif + +#if defined(__OS400__) +# define NO_vsnprintf +#endif + +#if defined(__MVS__) +# define NO_vsnprintf +#endif + +/* MVS linker does not support external names larger than 8 bytes */ +#if defined(__MVS__) + #pragma map(deflateInit_,"DEIN") + #pragma map(deflateInit2_,"DEIN2") + #pragma map(deflateEnd,"DEEND") + #pragma map(deflateBound,"DEBND") + #pragma map(inflateInit_,"ININ") + #pragma map(inflateInit2_,"ININ2") + #pragma map(inflateEnd,"INEND") + #pragma map(inflateSync,"INSY") + #pragma map(inflateSetDictionary,"INSEDI") + #pragma map(compressBound,"CMBND") + #pragma map(inflate_table,"INTABL") + #pragma map(inflate_fast,"INFA") + #pragma map(inflate_copyright,"INCOPY") +#endif + +#endif /* ZCONF_H */ diff --git a/zlib/zconf.h.in b/zlib/zconf.h.in new file mode 100644 index 0000000..02ce56c --- /dev/null +++ b/zlib/zconf.h.in @@ -0,0 +1,428 @@ +/* zconf.h -- configuration of the zlib compression library + * Copyright (C) 1995-2010 Jean-loup Gailly. + * For conditions of distribution and use, see copyright notice in zlib.h + */ + +/* @(#) $Id$ */ + +#ifndef ZCONF_H +#define ZCONF_H + +/* + * If you *really* need a unique prefix for all types and library functions, + * compile with -DZ_PREFIX. The "standard" zlib should be compiled without it. + * Even better than compiling with -DZ_PREFIX would be to use configure to set + * this permanently in zconf.h using "./configure --zprefix". + */ +#ifdef Z_PREFIX /* may be set to #if 1 by ./configure */ + +/* all linked symbols */ +# define _dist_code z__dist_code +# define _length_code z__length_code +# define _tr_align z__tr_align +# define _tr_flush_block z__tr_flush_block +# define _tr_init z__tr_init +# define _tr_stored_block z__tr_stored_block +# define _tr_tally z__tr_tally +# define adler32 z_adler32 +# define adler32_combine z_adler32_combine +# define adler32_combine64 z_adler32_combine64 +# define compress z_compress +# define compress2 z_compress2 +# define compressBound z_compressBound +# define crc32 z_crc32 +# define crc32_combine z_crc32_combine +# define crc32_combine64 z_crc32_combine64 +# define deflate z_deflate +# define deflateBound z_deflateBound +# define deflateCopy z_deflateCopy +# define deflateEnd z_deflateEnd +# define deflateInit2_ z_deflateInit2_ +# define deflateInit_ z_deflateInit_ +# define deflateParams z_deflateParams +# define deflatePrime z_deflatePrime +# define deflateReset z_deflateReset +# define deflateSetDictionary z_deflateSetDictionary +# define deflateSetHeader z_deflateSetHeader +# define deflateTune z_deflateTune +# define deflate_copyright z_deflate_copyright +# define get_crc_table z_get_crc_table +# define gz_error z_gz_error +# define gz_intmax z_gz_intmax +# define gz_strwinerror z_gz_strwinerror +# define gzbuffer z_gzbuffer +# define gzclearerr z_gzclearerr +# define gzclose z_gzclose +# define gzclose_r z_gzclose_r +# define gzclose_w z_gzclose_w +# define gzdirect z_gzdirect +# define gzdopen z_gzdopen +# define gzeof z_gzeof +# define gzerror z_gzerror +# define gzflush z_gzflush +# define gzgetc z_gzgetc +# define gzgets z_gzgets +# define gzoffset z_gzoffset +# define gzoffset64 z_gzoffset64 +# define gzopen z_gzopen +# define gzopen64 z_gzopen64 +# define gzprintf z_gzprintf +# define gzputc z_gzputc +# define gzputs z_gzputs +# define gzread z_gzread +# define gzrewind z_gzrewind +# define gzseek z_gzseek +# define gzseek64 z_gzseek64 +# define gzsetparams z_gzsetparams +# define gztell z_gztell +# define gztell64 z_gztell64 +# define gzungetc z_gzungetc +# define gzwrite z_gzwrite +# define inflate z_inflate +# define inflateBack z_inflateBack +# define inflateBackEnd z_inflateBackEnd +# define inflateBackInit_ z_inflateBackInit_ +# define inflateCopy z_inflateCopy +# define inflateEnd z_inflateEnd +# define inflateGetHeader z_inflateGetHeader +# define inflateInit2_ z_inflateInit2_ +# define inflateInit_ z_inflateInit_ +# define inflateMark z_inflateMark +# define inflatePrime z_inflatePrime +# define inflateReset z_inflateReset +# define inflateReset2 z_inflateReset2 +# define inflateSetDictionary z_inflateSetDictionary +# define inflateSync z_inflateSync +# define inflateSyncPoint z_inflateSyncPoint +# define inflateUndermine z_inflateUndermine +# define inflate_copyright z_inflate_copyright +# define inflate_fast z_inflate_fast +# define inflate_table z_inflate_table +# define uncompress z_uncompress +# define zError z_zError +# define zcalloc z_zcalloc +# define zcfree z_zcfree +# define zlibCompileFlags z_zlibCompileFlags +# define zlibVersion z_zlibVersion + +/* all zlib typedefs in zlib.h and zconf.h */ +# define Byte z_Byte +# define Bytef z_Bytef +# define alloc_func z_alloc_func +# define charf z_charf +# define free_func z_free_func +# define gzFile z_gzFile +# define gz_header z_gz_header +# define gz_headerp z_gz_headerp +# define in_func z_in_func +# define intf z_intf +# define out_func z_out_func +# define uInt z_uInt +# define uIntf z_uIntf +# define uLong z_uLong +# define uLongf z_uLongf +# define voidp z_voidp +# define voidpc z_voidpc +# define voidpf z_voidpf + +/* all zlib structs in zlib.h and zconf.h */ +# define gz_header_s z_gz_header_s +# define internal_state z_internal_state + +#endif + +#if defined(__MSDOS__) && !defined(MSDOS) +# define MSDOS +#endif +#if (defined(OS_2) || defined(__OS2__)) && !defined(OS2) +# define OS2 +#endif +#if defined(_WINDOWS) && !defined(WINDOWS) +# define WINDOWS +#endif +#if defined(_WIN32) || defined(_WIN32_WCE) || defined(__WIN32__) +# ifndef WIN32 +# define WIN32 +# endif +#endif +#if (defined(MSDOS) || defined(OS2) || defined(WINDOWS)) && !defined(WIN32) +# if !defined(__GNUC__) && !defined(__FLAT__) && !defined(__386__) +# ifndef SYS16BIT +# define SYS16BIT +# endif +# endif +#endif + +/* + * Compile with -DMAXSEG_64K if the alloc function cannot allocate more + * than 64k bytes at a time (needed on systems with 16-bit int). + */ +#ifdef SYS16BIT +# define MAXSEG_64K +#endif +#ifdef MSDOS +# define UNALIGNED_OK +#endif + +#ifdef __STDC_VERSION__ +# ifndef STDC +# define STDC +# endif +# if __STDC_VERSION__ >= 199901L +# ifndef STDC99 +# define STDC99 +# endif +# endif +#endif +#if !defined(STDC) && (defined(__STDC__) || defined(__cplusplus)) +# define STDC +#endif +#if !defined(STDC) && (defined(__GNUC__) || defined(__BORLANDC__)) +# define STDC +#endif +#if !defined(STDC) && (defined(MSDOS) || defined(WINDOWS) || defined(WIN32)) +# define STDC +#endif +#if !defined(STDC) && (defined(OS2) || defined(__HOS_AIX__)) +# define STDC +#endif + +#if defined(__OS400__) && !defined(STDC) /* iSeries (formerly AS/400). */ +# define STDC +#endif + +#ifndef STDC +# ifndef const /* cannot use !defined(STDC) && !defined(const) on Mac */ +# define const /* note: need a more gentle solution here */ +# endif +#endif + +/* Some Mac compilers merge all .h files incorrectly: */ +#if defined(__MWERKS__)||defined(applec)||defined(THINK_C)||defined(__SC__) +# define NO_DUMMY_DECL +#endif + +/* Maximum value for memLevel in deflateInit2 */ +#ifndef MAX_MEM_LEVEL +# ifdef MAXSEG_64K +# define MAX_MEM_LEVEL 8 +# else +# define MAX_MEM_LEVEL 9 +# endif +#endif + +/* Maximum value for windowBits in deflateInit2 and inflateInit2. + * WARNING: reducing MAX_WBITS makes minigzip unable to extract .gz files + * created by gzip. (Files created by minigzip can still be extracted by + * gzip.) + */ +#ifndef MAX_WBITS +# define MAX_WBITS 15 /* 32K LZ77 window */ +#endif + +/* The memory requirements for deflate are (in bytes): + (1 << (windowBits+2)) + (1 << (memLevel+9)) + that is: 128K for windowBits=15 + 128K for memLevel = 8 (default values) + plus a few kilobytes for small objects. For example, if you want to reduce + the default memory requirements from 256K to 128K, compile with + make CFLAGS="-O -DMAX_WBITS=14 -DMAX_MEM_LEVEL=7" + Of course this will generally degrade compression (there's no free lunch). + + The memory requirements for inflate are (in bytes) 1 << windowBits + that is, 32K for windowBits=15 (default value) plus a few kilobytes + for small objects. +*/ + + /* Type declarations */ + +#ifndef OF /* function prototypes */ +# ifdef STDC +# define OF(args) args +# else +# define OF(args) () +# endif +#endif + +/* The following definitions for FAR are needed only for MSDOS mixed + * model programming (small or medium model with some far allocations). + * This was tested only with MSC; for other MSDOS compilers you may have + * to define NO_MEMCPY in zutil.h. If you don't need the mixed model, + * just define FAR to be empty. + */ +#ifdef SYS16BIT +# if defined(M_I86SM) || defined(M_I86MM) + /* MSC small or medium model */ +# define SMALL_MEDIUM +# ifdef _MSC_VER +# define FAR _far +# else +# define FAR far +# endif +# endif +# if (defined(__SMALL__) || defined(__MEDIUM__)) + /* Turbo C small or medium model */ +# define SMALL_MEDIUM +# ifdef __BORLANDC__ +# define FAR _far +# else +# define FAR far +# endif +# endif +#endif + +#if defined(WINDOWS) || defined(WIN32) + /* If building or using zlib as a DLL, define ZLIB_DLL. + * This is not mandatory, but it offers a little performance increase. + */ +# ifdef ZLIB_DLL +# if defined(WIN32) && (!defined(__BORLANDC__) || (__BORLANDC__ >= 0x500)) +# ifdef ZLIB_INTERNAL +# define ZEXTERN extern __declspec(dllexport) +# else +# define ZEXTERN extern __declspec(dllimport) +# endif +# endif +# endif /* ZLIB_DLL */ + /* If building or using zlib with the WINAPI/WINAPIV calling convention, + * define ZLIB_WINAPI. + * Caution: the standard ZLIB1.DLL is NOT compiled using ZLIB_WINAPI. + */ +# ifdef ZLIB_WINAPI +# ifdef FAR +# undef FAR +# endif +# include + /* No need for _export, use ZLIB.DEF instead. */ + /* For complete Windows compatibility, use WINAPI, not __stdcall. */ +# define ZEXPORT WINAPI +# ifdef WIN32 +# define ZEXPORTVA WINAPIV +# else +# define ZEXPORTVA FAR CDECL +# endif +# endif +#endif + +#if defined (__BEOS__) +# ifdef ZLIB_DLL +# ifdef ZLIB_INTERNAL +# define ZEXPORT __declspec(dllexport) +# define ZEXPORTVA __declspec(dllexport) +# else +# define ZEXPORT __declspec(dllimport) +# define ZEXPORTVA __declspec(dllimport) +# endif +# endif +#endif + +#ifndef ZEXTERN +# define ZEXTERN extern +#endif +#ifndef ZEXPORT +# define ZEXPORT +#endif +#ifndef ZEXPORTVA +# define ZEXPORTVA +#endif + +#ifndef FAR +# define FAR +#endif + +#if !defined(__MACTYPES__) +typedef unsigned char Byte; /* 8 bits */ +#endif +typedef unsigned int uInt; /* 16 bits or more */ +typedef unsigned long uLong; /* 32 bits or more */ + +#ifdef SMALL_MEDIUM + /* Borland C/C++ and some old MSC versions ignore FAR inside typedef */ +# define Bytef Byte FAR +#else + typedef Byte FAR Bytef; +#endif +typedef char FAR charf; +typedef int FAR intf; +typedef uInt FAR uIntf; +typedef uLong FAR uLongf; + +#ifdef STDC + typedef void const *voidpc; + typedef void FAR *voidpf; + typedef void *voidp; +#else + typedef Byte const *voidpc; + typedef Byte FAR *voidpf; + typedef Byte *voidp; +#endif + +#ifdef HAVE_UNISTD_H /* may be set to #if 1 by ./configure */ +# define Z_HAVE_UNISTD_H +#endif + +#ifdef STDC +# include /* for off_t */ +#endif + +/* a little trick to accommodate both "#define _LARGEFILE64_SOURCE" and + * "#define _LARGEFILE64_SOURCE 1" as requesting 64-bit operations, (even + * though the former does not conform to the LFS document), but considering + * both "#undef _LARGEFILE64_SOURCE" and "#define _LARGEFILE64_SOURCE 0" as + * equivalently requesting no 64-bit operations + */ +#if -_LARGEFILE64_SOURCE - -1 == 1 +# undef _LARGEFILE64_SOURCE +#endif + +#if defined(Z_HAVE_UNISTD_H) || defined(_LARGEFILE64_SOURCE) +# include /* for SEEK_* and off_t */ +# ifdef VMS +# include /* for off_t */ +# endif +# ifndef z_off_t +# define z_off_t off_t +# endif +#endif + +#ifndef SEEK_SET +# define SEEK_SET 0 /* Seek from beginning of file. */ +# define SEEK_CUR 1 /* Seek from current position. */ +# define SEEK_END 2 /* Set file pointer to EOF plus "offset" */ +#endif + +#ifndef z_off_t +# define z_off_t long +#endif + +#if defined(_LARGEFILE64_SOURCE) && _LFS64_LARGEFILE-0 +# define z_off64_t off64_t +#else +# define z_off64_t z_off_t +#endif + +#if defined(__OS400__) +# define NO_vsnprintf +#endif + +#if defined(__MVS__) +# define NO_vsnprintf +#endif + +/* MVS linker does not support external names larger than 8 bytes */ +#if defined(__MVS__) + #pragma map(deflateInit_,"DEIN") + #pragma map(deflateInit2_,"DEIN2") + #pragma map(deflateEnd,"DEEND") + #pragma map(deflateBound,"DEBND") + #pragma map(inflateInit_,"ININ") + #pragma map(inflateInit2_,"ININ2") + #pragma map(inflateEnd,"INEND") + #pragma map(inflateSync,"INSY") + #pragma map(inflateSetDictionary,"INSEDI") + #pragma map(compressBound,"CMBND") + #pragma map(inflate_table,"INTABL") + #pragma map(inflate_fast,"INFA") + #pragma map(inflate_copyright,"INCOPY") +#endif + +#endif /* ZCONF_H */ diff --git a/zlib/zlib.3 b/zlib/zlib.3 new file mode 100644 index 0000000..27adc4c --- /dev/null +++ b/zlib/zlib.3 @@ -0,0 +1,151 @@ +.TH ZLIB 3 "19 Apr 2010" +.SH NAME +zlib \- compression/decompression library +.SH SYNOPSIS +[see +.I zlib.h +for full description] +.SH DESCRIPTION +The +.I zlib +library is a general purpose data compression library. +The code is thread safe, assuming that the standard library functions +used are thread safe, such as memory allocation routines. +It provides in-memory compression and decompression functions, +including integrity checks of the uncompressed data. +This version of the library supports only one compression method (deflation) +but other algorithms may be added later +with the same stream interface. +.LP +Compression can be done in a single step if the buffers are large enough +or can be done by repeated calls of the compression function. +In the latter case, +the application must provide more input and/or consume the output +(providing more output space) before each call. +.LP +The library also supports reading and writing files in +.IR gzip (1) +(.gz) format +with an interface similar to that of stdio. +.LP +The library does not install any signal handler. +The decoder checks the consistency of the compressed data, +so the library should never crash even in the case of corrupted input. +.LP +All functions of the compression library are documented in the file +.IR zlib.h . +The distribution source includes examples of use of the library +in the files +.I example.c +and +.IR minigzip.c, +as well as other examples in the +.IR examples/ +directory. +.LP +Changes to this version are documented in the file +.I ChangeLog +that accompanies the source. +.LP +.I zlib +is available in Java using the java.util.zip package: +.IP +http://java.sun.com/developer/technicalArticles/Programming/compression/ +.LP +A Perl interface to +.IR zlib , +written by Paul Marquess (pmqs@cpan.org), +is available at CPAN (Comprehensive Perl Archive Network) sites, +including: +.IP +http://search.cpan.org/~pmqs/IO-Compress-Zlib/ +.LP +A Python interface to +.IR zlib , +written by A.M. Kuchling (amk@magnet.com), +is available in Python 1.5 and later versions: +.IP +http://www.python.org/doc/lib/module-zlib.html +.LP +.I zlib +is built into +.IR tcl: +.IP +http://wiki.tcl.tk/4610 +.LP +An experimental package to read and write files in .zip format, +written on top of +.I zlib +by Gilles Vollant (info@winimage.com), +is available at: +.IP +http://www.winimage.com/zLibDll/minizip.html +and also in the +.I contrib/minizip +directory of the main +.I zlib +source distribution. +.SH "SEE ALSO" +The +.I zlib +web site can be found at: +.IP +http://zlib.net/ +.LP +The data format used by the zlib library is described by RFC +(Request for Comments) 1950 to 1952 in the files: +.IP +http://www.ietf.org/rfc/rfc1950.txt (for the zlib header and trailer format) +.br +http://www.ietf.org/rfc/rfc1951.txt (for the deflate compressed data format) +.br +http://www.ietf.org/rfc/rfc1952.txt (for the gzip header and trailer format) +.LP +Mark Nelson wrote an article about +.I zlib +for the Jan. 1997 issue of Dr. Dobb's Journal; +a copy of the article is available at: +.IP +http://marknelson.us/1997/01/01/zlib-engine/ +.SH "REPORTING PROBLEMS" +Before reporting a problem, +please check the +.I zlib +web site to verify that you have the latest version of +.IR zlib ; +otherwise, +obtain the latest version and see if the problem still exists. +Please read the +.I zlib +FAQ at: +.IP +http://zlib.net/zlib_faq.html +.LP +before asking for help. +Send questions and/or comments to zlib@gzip.org, +or (for the Windows DLL version) to Gilles Vollant (info@winimage.com). +.SH AUTHORS +Version 1.2.5 +Copyright (C) 1995-2010 Jean-loup Gailly (jloup@gzip.org) +and Mark Adler (madler@alumni.caltech.edu). +.LP +This software is provided "as-is," +without any express or implied warranty. +In no event will the authors be held liable for any damages +arising from the use of this software. +See the distribution directory with respect to requirements +governing redistribution. +The deflate format used by +.I zlib +was defined by Phil Katz. +The deflate and +.I zlib +specifications were written by L. Peter Deutsch. +Thanks to all the people who reported problems and suggested various +improvements in +.IR zlib ; +who are too numerous to cite here. +.LP +UNIX manual page by R. P. C. Rodgers, +U.S. National Library of Medicine (rodgers@nlm.nih.gov). +.\" end of man page diff --git a/zlib/zlib.3.pdf b/zlib/zlib.3.pdf new file mode 100644 index 0000000..9f8a2c3 Binary files /dev/null and b/zlib/zlib.3.pdf differ diff --git a/zlib/zlib.h b/zlib/zlib.h new file mode 100644 index 0000000..bfbba83 --- /dev/null +++ b/zlib/zlib.h @@ -0,0 +1,1613 @@ +/* zlib.h -- interface of the 'zlib' general purpose compression library + version 1.2.5, April 19th, 2010 + + Copyright (C) 1995-2010 Jean-loup Gailly and Mark Adler + + This software is provided 'as-is', without any express or implied + warranty. In no event will the authors be held liable for any damages + arising from the use of this software. + + Permission is granted to anyone to use this software for any purpose, + including commercial applications, and to alter it and redistribute it + freely, subject to the following restrictions: + + 1. The origin of this software must not be misrepresented; you must not + claim that you wrote the original software. If you use this software + in a product, an acknowledgment in the product documentation would be + appreciated but is not required. + 2. Altered source versions must be plainly marked as such, and must not be + misrepresented as being the original software. + 3. This notice may not be removed or altered from any source distribution. + + Jean-loup Gailly Mark Adler + jloup@gzip.org madler@alumni.caltech.edu + + + The data format used by the zlib library is described by RFCs (Request for + Comments) 1950 to 1952 in the files http://www.ietf.org/rfc/rfc1950.txt + (zlib format), rfc1951.txt (deflate format) and rfc1952.txt (gzip format). +*/ + +#ifndef ZLIB_H +#define ZLIB_H + +#include "zconf.h" + +#ifdef __cplusplus +extern "C" { +#endif + +#define ZLIB_VERSION "1.2.5" +#define ZLIB_VERNUM 0x1250 +#define ZLIB_VER_MAJOR 1 +#define ZLIB_VER_MINOR 2 +#define ZLIB_VER_REVISION 5 +#define ZLIB_VER_SUBREVISION 0 + +/* + The 'zlib' compression library provides in-memory compression and + decompression functions, including integrity checks of the uncompressed data. + This version of the library supports only one compression method (deflation) + but other algorithms will be added later and will have the same stream + interface. + + Compression can be done in a single step if the buffers are large enough, + or can be done by repeated calls of the compression function. In the latter + case, the application must provide more input and/or consume the output + (providing more output space) before each call. + + The compressed data format used by default by the in-memory functions is + the zlib format, which is a zlib wrapper documented in RFC 1950, wrapped + around a deflate stream, which is itself documented in RFC 1951. + + The library also supports reading and writing files in gzip (.gz) format + with an interface similar to that of stdio using the functions that start + with "gz". The gzip format is different from the zlib format. gzip is a + gzip wrapper, documented in RFC 1952, wrapped around a deflate stream. + + This library can optionally read and write gzip streams in memory as well. + + The zlib format was designed to be compact and fast for use in memory + and on communications channels. The gzip format was designed for single- + file compression on file systems, has a larger header than zlib to maintain + directory information, and uses a different, slower check method than zlib. + + The library does not install any signal handler. The decoder checks + the consistency of the compressed data, so the library should never crash + even in case of corrupted input. +*/ + +typedef voidpf (*alloc_func) OF((voidpf opaque, uInt items, uInt size)); +typedef void (*free_func) OF((voidpf opaque, voidpf address)); + +struct internal_state; + +typedef struct z_stream_s { + Bytef *next_in; /* next input byte */ + uInt avail_in; /* number of bytes available at next_in */ + uLong total_in; /* total nb of input bytes read so far */ + + Bytef *next_out; /* next output byte should be put there */ + uInt avail_out; /* remaining free space at next_out */ + uLong total_out; /* total nb of bytes output so far */ + + char *msg; /* last error message, NULL if no error */ + struct internal_state FAR *state; /* not visible by applications */ + + alloc_func zalloc; /* used to allocate the internal state */ + free_func zfree; /* used to free the internal state */ + voidpf opaque; /* private data object passed to zalloc and zfree */ + + int data_type; /* best guess about the data type: binary or text */ + uLong adler; /* adler32 value of the uncompressed data */ + uLong reserved; /* reserved for future use */ +} z_stream; + +typedef z_stream FAR *z_streamp; + +/* + gzip header information passed to and from zlib routines. See RFC 1952 + for more details on the meanings of these fields. +*/ +typedef struct gz_header_s { + int text; /* true if compressed data believed to be text */ + uLong time; /* modification time */ + int xflags; /* extra flags (not used when writing a gzip file) */ + int os; /* operating system */ + Bytef *extra; /* pointer to extra field or Z_NULL if none */ + uInt extra_len; /* extra field length (valid if extra != Z_NULL) */ + uInt extra_max; /* space at extra (only when reading header) */ + Bytef *name; /* pointer to zero-terminated file name or Z_NULL */ + uInt name_max; /* space at name (only when reading header) */ + Bytef *comment; /* pointer to zero-terminated comment or Z_NULL */ + uInt comm_max; /* space at comment (only when reading header) */ + int hcrc; /* true if there was or will be a header crc */ + int done; /* true when done reading gzip header (not used + when writing a gzip file) */ +} gz_header; + +typedef gz_header FAR *gz_headerp; + +/* + The application must update next_in and avail_in when avail_in has dropped + to zero. It must update next_out and avail_out when avail_out has dropped + to zero. The application must initialize zalloc, zfree and opaque before + calling the init function. All other fields are set by the compression + library and must not be updated by the application. + + The opaque value provided by the application will be passed as the first + parameter for calls of zalloc and zfree. This can be useful for custom + memory management. The compression library attaches no meaning to the + opaque value. + + zalloc must return Z_NULL if there is not enough memory for the object. + If zlib is used in a multi-threaded application, zalloc and zfree must be + thread safe. + + On 16-bit systems, the functions zalloc and zfree must be able to allocate + exactly 65536 bytes, but will not be required to allocate more than this if + the symbol MAXSEG_64K is defined (see zconf.h). WARNING: On MSDOS, pointers + returned by zalloc for objects of exactly 65536 bytes *must* have their + offset normalized to zero. The default allocation function provided by this + library ensures this (see zutil.c). To reduce memory requirements and avoid + any allocation of 64K objects, at the expense of compression ratio, compile + the library with -DMAX_WBITS=14 (see zconf.h). + + The fields total_in and total_out can be used for statistics or progress + reports. After compression, total_in holds the total size of the + uncompressed data and may be saved for use in the decompressor (particularly + if the decompressor wants to decompress everything in a single step). +*/ + + /* constants */ + +#define Z_NO_FLUSH 0 +#define Z_PARTIAL_FLUSH 1 +#define Z_SYNC_FLUSH 2 +#define Z_FULL_FLUSH 3 +#define Z_FINISH 4 +#define Z_BLOCK 5 +#define Z_TREES 6 +/* Allowed flush values; see deflate() and inflate() below for details */ + +#define Z_OK 0 +#define Z_STREAM_END 1 +#define Z_NEED_DICT 2 +#define Z_ERRNO (-1) +#define Z_STREAM_ERROR (-2) +#define Z_DATA_ERROR (-3) +#define Z_MEM_ERROR (-4) +#define Z_BUF_ERROR (-5) +#define Z_VERSION_ERROR (-6) +/* Return codes for the compression/decompression functions. Negative values + * are errors, positive values are used for special but normal events. + */ + +#define Z_NO_COMPRESSION 0 +#define Z_BEST_SPEED 1 +#define Z_BEST_COMPRESSION 9 +#define Z_DEFAULT_COMPRESSION (-1) +/* compression levels */ + +#define Z_FILTERED 1 +#define Z_HUFFMAN_ONLY 2 +#define Z_RLE 3 +#define Z_FIXED 4 +#define Z_DEFAULT_STRATEGY 0 +/* compression strategy; see deflateInit2() below for details */ + +#define Z_BINARY 0 +#define Z_TEXT 1 +#define Z_ASCII Z_TEXT /* for compatibility with 1.2.2 and earlier */ +#define Z_UNKNOWN 2 +/* Possible values of the data_type field (though see inflate()) */ + +#define Z_DEFLATED 8 +/* The deflate compression method (the only one supported in this version) */ + +#define Z_NULL 0 /* for initializing zalloc, zfree, opaque */ + +#define zlib_version zlibVersion() +/* for compatibility with versions < 1.0.2 */ + + + /* basic functions */ + +ZEXTERN const char * ZEXPORT zlibVersion OF((void)); +/* The application can compare zlibVersion and ZLIB_VERSION for consistency. + If the first character differs, the library code actually used is not + compatible with the zlib.h header file used by the application. This check + is automatically made by deflateInit and inflateInit. + */ + +/* +ZEXTERN int ZEXPORT deflateInit OF((z_streamp strm, int level)); + + Initializes the internal stream state for compression. The fields + zalloc, zfree and opaque must be initialized before by the caller. If + zalloc and zfree are set to Z_NULL, deflateInit updates them to use default + allocation functions. + + The compression level must be Z_DEFAULT_COMPRESSION, or between 0 and 9: + 1 gives best speed, 9 gives best compression, 0 gives no compression at all + (the input data is simply copied a block at a time). Z_DEFAULT_COMPRESSION + requests a default compromise between speed and compression (currently + equivalent to level 6). + + deflateInit returns Z_OK if success, Z_MEM_ERROR if there was not enough + memory, Z_STREAM_ERROR if level is not a valid compression level, or + Z_VERSION_ERROR if the zlib library version (zlib_version) is incompatible + with the version assumed by the caller (ZLIB_VERSION). msg is set to null + if there is no error message. deflateInit does not perform any compression: + this will be done by deflate(). +*/ + + +ZEXTERN int ZEXPORT deflate OF((z_streamp strm, int flush)); +/* + deflate compresses as much data as possible, and stops when the input + buffer becomes empty or the output buffer becomes full. It may introduce + some output latency (reading input without producing any output) except when + forced to flush. + + The detailed semantics are as follows. deflate performs one or both of the + following actions: + + - Compress more input starting at next_in and update next_in and avail_in + accordingly. If not all input can be processed (because there is not + enough room in the output buffer), next_in and avail_in are updated and + processing will resume at this point for the next call of deflate(). + + - Provide more output starting at next_out and update next_out and avail_out + accordingly. This action is forced if the parameter flush is non zero. + Forcing flush frequently degrades the compression ratio, so this parameter + should be set only when necessary (in interactive applications). Some + output may be provided even if flush is not set. + + Before the call of deflate(), the application should ensure that at least + one of the actions is possible, by providing more input and/or consuming more + output, and updating avail_in or avail_out accordingly; avail_out should + never be zero before the call. The application can consume the compressed + output when it wants, for example when the output buffer is full (avail_out + == 0), or after each call of deflate(). If deflate returns Z_OK and with + zero avail_out, it must be called again after making room in the output + buffer because there might be more output pending. + + Normally the parameter flush is set to Z_NO_FLUSH, which allows deflate to + decide how much data to accumulate before producing output, in order to + maximize compression. + + If the parameter flush is set to Z_SYNC_FLUSH, all pending output is + flushed to the output buffer and the output is aligned on a byte boundary, so + that the decompressor can get all input data available so far. (In + particular avail_in is zero after the call if enough output space has been + provided before the call.) Flushing may degrade compression for some + compression algorithms and so it should be used only when necessary. This + completes the current deflate block and follows it with an empty stored block + that is three bits plus filler bits to the next byte, followed by four bytes + (00 00 ff ff). + + If flush is set to Z_PARTIAL_FLUSH, all pending output is flushed to the + output buffer, but the output is not aligned to a byte boundary. All of the + input data so far will be available to the decompressor, as for Z_SYNC_FLUSH. + This completes the current deflate block and follows it with an empty fixed + codes block that is 10 bits long. This assures that enough bytes are output + in order for the decompressor to finish the block before the empty fixed code + block. + + If flush is set to Z_BLOCK, a deflate block is completed and emitted, as + for Z_SYNC_FLUSH, but the output is not aligned on a byte boundary, and up to + seven bits of the current block are held to be written as the next byte after + the next deflate block is completed. In this case, the decompressor may not + be provided enough bits at this point in order to complete decompression of + the data provided so far to the compressor. It may need to wait for the next + block to be emitted. This is for advanced applications that need to control + the emission of deflate blocks. + + If flush is set to Z_FULL_FLUSH, all output is flushed as with + Z_SYNC_FLUSH, and the compression state is reset so that decompression can + restart from this point if previous compressed data has been damaged or if + random access is desired. Using Z_FULL_FLUSH too often can seriously degrade + compression. + + If deflate returns with avail_out == 0, this function must be called again + with the same value of the flush parameter and more output space (updated + avail_out), until the flush is complete (deflate returns with non-zero + avail_out). In the case of a Z_FULL_FLUSH or Z_SYNC_FLUSH, make sure that + avail_out is greater than six to avoid repeated flush markers due to + avail_out == 0 on return. + + If the parameter flush is set to Z_FINISH, pending input is processed, + pending output is flushed and deflate returns with Z_STREAM_END if there was + enough output space; if deflate returns with Z_OK, this function must be + called again with Z_FINISH and more output space (updated avail_out) but no + more input data, until it returns with Z_STREAM_END or an error. After + deflate has returned Z_STREAM_END, the only possible operations on the stream + are deflateReset or deflateEnd. + + Z_FINISH can be used immediately after deflateInit if all the compression + is to be done in a single step. In this case, avail_out must be at least the + value returned by deflateBound (see below). If deflate does not return + Z_STREAM_END, then it must be called again as described above. + + deflate() sets strm->adler to the adler32 checksum of all input read + so far (that is, total_in bytes). + + deflate() may update strm->data_type if it can make a good guess about + the input data type (Z_BINARY or Z_TEXT). In doubt, the data is considered + binary. This field is only for information purposes and does not affect the + compression algorithm in any manner. + + deflate() returns Z_OK if some progress has been made (more input + processed or more output produced), Z_STREAM_END if all input has been + consumed and all output has been produced (only when flush is set to + Z_FINISH), Z_STREAM_ERROR if the stream state was inconsistent (for example + if next_in or next_out was Z_NULL), Z_BUF_ERROR if no progress is possible + (for example avail_in or avail_out was zero). Note that Z_BUF_ERROR is not + fatal, and deflate() can be called again with more input and more output + space to continue compressing. +*/ + + +ZEXTERN int ZEXPORT deflateEnd OF((z_streamp strm)); +/* + All dynamically allocated data structures for this stream are freed. + This function discards any unprocessed input and does not flush any pending + output. + + deflateEnd returns Z_OK if success, Z_STREAM_ERROR if the + stream state was inconsistent, Z_DATA_ERROR if the stream was freed + prematurely (some input or output was discarded). In the error case, msg + may be set but then points to a static string (which must not be + deallocated). +*/ + + +/* +ZEXTERN int ZEXPORT inflateInit OF((z_streamp strm)); + + Initializes the internal stream state for decompression. The fields + next_in, avail_in, zalloc, zfree and opaque must be initialized before by + the caller. If next_in is not Z_NULL and avail_in is large enough (the + exact value depends on the compression method), inflateInit determines the + compression method from the zlib header and allocates all data structures + accordingly; otherwise the allocation will be deferred to the first call of + inflate. If zalloc and zfree are set to Z_NULL, inflateInit updates them to + use default allocation functions. + + inflateInit returns Z_OK if success, Z_MEM_ERROR if there was not enough + memory, Z_VERSION_ERROR if the zlib library version is incompatible with the + version assumed by the caller, or Z_STREAM_ERROR if the parameters are + invalid, such as a null pointer to the structure. msg is set to null if + there is no error message. inflateInit does not perform any decompression + apart from possibly reading the zlib header if present: actual decompression + will be done by inflate(). (So next_in and avail_in may be modified, but + next_out and avail_out are unused and unchanged.) The current implementation + of inflateInit() does not process any header information -- that is deferred + until inflate() is called. +*/ + + +ZEXTERN int ZEXPORT inflate OF((z_streamp strm, int flush)); +/* + inflate decompresses as much data as possible, and stops when the input + buffer becomes empty or the output buffer becomes full. It may introduce + some output latency (reading input without producing any output) except when + forced to flush. + + The detailed semantics are as follows. inflate performs one or both of the + following actions: + + - Decompress more input starting at next_in and update next_in and avail_in + accordingly. If not all input can be processed (because there is not + enough room in the output buffer), next_in is updated and processing will + resume at this point for the next call of inflate(). + + - Provide more output starting at next_out and update next_out and avail_out + accordingly. inflate() provides as much output as possible, until there is + no more input data or no more space in the output buffer (see below about + the flush parameter). + + Before the call of inflate(), the application should ensure that at least + one of the actions is possible, by providing more input and/or consuming more + output, and updating the next_* and avail_* values accordingly. The + application can consume the uncompressed output when it wants, for example + when the output buffer is full (avail_out == 0), or after each call of + inflate(). If inflate returns Z_OK and with zero avail_out, it must be + called again after making room in the output buffer because there might be + more output pending. + + The flush parameter of inflate() can be Z_NO_FLUSH, Z_SYNC_FLUSH, Z_FINISH, + Z_BLOCK, or Z_TREES. Z_SYNC_FLUSH requests that inflate() flush as much + output as possible to the output buffer. Z_BLOCK requests that inflate() + stop if and when it gets to the next deflate block boundary. When decoding + the zlib or gzip format, this will cause inflate() to return immediately + after the header and before the first block. When doing a raw inflate, + inflate() will go ahead and process the first block, and will return when it + gets to the end of that block, or when it runs out of data. + + The Z_BLOCK option assists in appending to or combining deflate streams. + Also to assist in this, on return inflate() will set strm->data_type to the + number of unused bits in the last byte taken from strm->next_in, plus 64 if + inflate() is currently decoding the last block in the deflate stream, plus + 128 if inflate() returned immediately after decoding an end-of-block code or + decoding the complete header up to just before the first byte of the deflate + stream. The end-of-block will not be indicated until all of the uncompressed + data from that block has been written to strm->next_out. The number of + unused bits may in general be greater than seven, except when bit 7 of + data_type is set, in which case the number of unused bits will be less than + eight. data_type is set as noted here every time inflate() returns for all + flush options, and so can be used to determine the amount of currently + consumed input in bits. + + The Z_TREES option behaves as Z_BLOCK does, but it also returns when the + end of each deflate block header is reached, before any actual data in that + block is decoded. This allows the caller to determine the length of the + deflate block header for later use in random access within a deflate block. + 256 is added to the value of strm->data_type when inflate() returns + immediately after reaching the end of the deflate block header. + + inflate() should normally be called until it returns Z_STREAM_END or an + error. However if all decompression is to be performed in a single step (a + single call of inflate), the parameter flush should be set to Z_FINISH. In + this case all pending input is processed and all pending output is flushed; + avail_out must be large enough to hold all the uncompressed data. (The size + of the uncompressed data may have been saved by the compressor for this + purpose.) The next operation on this stream must be inflateEnd to deallocate + the decompression state. The use of Z_FINISH is never required, but can be + used to inform inflate that a faster approach may be used for the single + inflate() call. + + In this implementation, inflate() always flushes as much output as + possible to the output buffer, and always uses the faster approach on the + first call. So the only effect of the flush parameter in this implementation + is on the return value of inflate(), as noted below, or when it returns early + because Z_BLOCK or Z_TREES is used. + + If a preset dictionary is needed after this call (see inflateSetDictionary + below), inflate sets strm->adler to the adler32 checksum of the dictionary + chosen by the compressor and returns Z_NEED_DICT; otherwise it sets + strm->adler to the adler32 checksum of all output produced so far (that is, + total_out bytes) and returns Z_OK, Z_STREAM_END or an error code as described + below. At the end of the stream, inflate() checks that its computed adler32 + checksum is equal to that saved by the compressor and returns Z_STREAM_END + only if the checksum is correct. + + inflate() can decompress and check either zlib-wrapped or gzip-wrapped + deflate data. The header type is detected automatically, if requested when + initializing with inflateInit2(). Any information contained in the gzip + header is not retained, so applications that need that information should + instead use raw inflate, see inflateInit2() below, or inflateBack() and + perform their own processing of the gzip header and trailer. + + inflate() returns Z_OK if some progress has been made (more input processed + or more output produced), Z_STREAM_END if the end of the compressed data has + been reached and all uncompressed output has been produced, Z_NEED_DICT if a + preset dictionary is needed at this point, Z_DATA_ERROR if the input data was + corrupted (input stream not conforming to the zlib format or incorrect check + value), Z_STREAM_ERROR if the stream structure was inconsistent (for example + next_in or next_out was Z_NULL), Z_MEM_ERROR if there was not enough memory, + Z_BUF_ERROR if no progress is possible or if there was not enough room in the + output buffer when Z_FINISH is used. Note that Z_BUF_ERROR is not fatal, and + inflate() can be called again with more input and more output space to + continue decompressing. If Z_DATA_ERROR is returned, the application may + then call inflateSync() to look for a good compression block if a partial + recovery of the data is desired. +*/ + + +ZEXTERN int ZEXPORT inflateEnd OF((z_streamp strm)); +/* + All dynamically allocated data structures for this stream are freed. + This function discards any unprocessed input and does not flush any pending + output. + + inflateEnd returns Z_OK if success, Z_STREAM_ERROR if the stream state + was inconsistent. In the error case, msg may be set but then points to a + static string (which must not be deallocated). +*/ + + + /* Advanced functions */ + +/* + The following functions are needed only in some special applications. +*/ + +/* +ZEXTERN int ZEXPORT deflateInit2 OF((z_streamp strm, + int level, + int method, + int windowBits, + int memLevel, + int strategy)); + + This is another version of deflateInit with more compression options. The + fields next_in, zalloc, zfree and opaque must be initialized before by the + caller. + + The method parameter is the compression method. It must be Z_DEFLATED in + this version of the library. + + The windowBits parameter is the base two logarithm of the window size + (the size of the history buffer). It should be in the range 8..15 for this + version of the library. Larger values of this parameter result in better + compression at the expense of memory usage. The default value is 15 if + deflateInit is used instead. + + windowBits can also be -8..-15 for raw deflate. In this case, -windowBits + determines the window size. deflate() will then generate raw deflate data + with no zlib header or trailer, and will not compute an adler32 check value. + + windowBits can also be greater than 15 for optional gzip encoding. Add + 16 to windowBits to write a simple gzip header and trailer around the + compressed data instead of a zlib wrapper. The gzip header will have no + file name, no extra data, no comment, no modification time (set to zero), no + header crc, and the operating system will be set to 255 (unknown). If a + gzip stream is being written, strm->adler is a crc32 instead of an adler32. + + The memLevel parameter specifies how much memory should be allocated + for the internal compression state. memLevel=1 uses minimum memory but is + slow and reduces compression ratio; memLevel=9 uses maximum memory for + optimal speed. The default value is 8. See zconf.h for total memory usage + as a function of windowBits and memLevel. + + The strategy parameter is used to tune the compression algorithm. Use the + value Z_DEFAULT_STRATEGY for normal data, Z_FILTERED for data produced by a + filter (or predictor), Z_HUFFMAN_ONLY to force Huffman encoding only (no + string match), or Z_RLE to limit match distances to one (run-length + encoding). Filtered data consists mostly of small values with a somewhat + random distribution. In this case, the compression algorithm is tuned to + compress them better. The effect of Z_FILTERED is to force more Huffman + coding and less string matching; it is somewhat intermediate between + Z_DEFAULT_STRATEGY and Z_HUFFMAN_ONLY. Z_RLE is designed to be almost as + fast as Z_HUFFMAN_ONLY, but give better compression for PNG image data. The + strategy parameter only affects the compression ratio but not the + correctness of the compressed output even if it is not set appropriately. + Z_FIXED prevents the use of dynamic Huffman codes, allowing for a simpler + decoder for special applications. + + deflateInit2 returns Z_OK if success, Z_MEM_ERROR if there was not enough + memory, Z_STREAM_ERROR if any parameter is invalid (such as an invalid + method), or Z_VERSION_ERROR if the zlib library version (zlib_version) is + incompatible with the version assumed by the caller (ZLIB_VERSION). msg is + set to null if there is no error message. deflateInit2 does not perform any + compression: this will be done by deflate(). +*/ + +ZEXTERN int ZEXPORT deflateSetDictionary OF((z_streamp strm, + const Bytef *dictionary, + uInt dictLength)); +/* + Initializes the compression dictionary from the given byte sequence + without producing any compressed output. This function must be called + immediately after deflateInit, deflateInit2 or deflateReset, before any call + of deflate. The compressor and decompressor must use exactly the same + dictionary (see inflateSetDictionary). + + The dictionary should consist of strings (byte sequences) that are likely + to be encountered later in the data to be compressed, with the most commonly + used strings preferably put towards the end of the dictionary. Using a + dictionary is most useful when the data to be compressed is short and can be + predicted with good accuracy; the data can then be compressed better than + with the default empty dictionary. + + Depending on the size of the compression data structures selected by + deflateInit or deflateInit2, a part of the dictionary may in effect be + discarded, for example if the dictionary is larger than the window size + provided in deflateInit or deflateInit2. Thus the strings most likely to be + useful should be put at the end of the dictionary, not at the front. In + addition, the current implementation of deflate will use at most the window + size minus 262 bytes of the provided dictionary. + + Upon return of this function, strm->adler is set to the adler32 value + of the dictionary; the decompressor may later use this value to determine + which dictionary has been used by the compressor. (The adler32 value + applies to the whole dictionary even if only a subset of the dictionary is + actually used by the compressor.) If a raw deflate was requested, then the + adler32 value is not computed and strm->adler is not set. + + deflateSetDictionary returns Z_OK if success, or Z_STREAM_ERROR if a + parameter is invalid (e.g. dictionary being Z_NULL) or the stream state is + inconsistent (for example if deflate has already been called for this stream + or if the compression method is bsort). deflateSetDictionary does not + perform any compression: this will be done by deflate(). +*/ + +ZEXTERN int ZEXPORT deflateCopy OF((z_streamp dest, + z_streamp source)); +/* + Sets the destination stream as a complete copy of the source stream. + + This function can be useful when several compression strategies will be + tried, for example when there are several ways of pre-processing the input + data with a filter. The streams that will be discarded should then be freed + by calling deflateEnd. Note that deflateCopy duplicates the internal + compression state which can be quite large, so this strategy is slow and can + consume lots of memory. + + deflateCopy returns Z_OK if success, Z_MEM_ERROR if there was not + enough memory, Z_STREAM_ERROR if the source stream state was inconsistent + (such as zalloc being Z_NULL). msg is left unchanged in both source and + destination. +*/ + +ZEXTERN int ZEXPORT deflateReset OF((z_streamp strm)); +/* + This function is equivalent to deflateEnd followed by deflateInit, + but does not free and reallocate all the internal compression state. The + stream will keep the same compression level and any other attributes that + may have been set by deflateInit2. + + deflateReset returns Z_OK if success, or Z_STREAM_ERROR if the source + stream state was inconsistent (such as zalloc or state being Z_NULL). +*/ + +ZEXTERN int ZEXPORT deflateParams OF((z_streamp strm, + int level, + int strategy)); +/* + Dynamically update the compression level and compression strategy. The + interpretation of level and strategy is as in deflateInit2. This can be + used to switch between compression and straight copy of the input data, or + to switch to a different kind of input data requiring a different strategy. + If the compression level is changed, the input available so far is + compressed with the old level (and may be flushed); the new level will take + effect only at the next call of deflate(). + + Before the call of deflateParams, the stream state must be set as for + a call of deflate(), since the currently available input may have to be + compressed and flushed. In particular, strm->avail_out must be non-zero. + + deflateParams returns Z_OK if success, Z_STREAM_ERROR if the source + stream state was inconsistent or if a parameter was invalid, Z_BUF_ERROR if + strm->avail_out was zero. +*/ + +ZEXTERN int ZEXPORT deflateTune OF((z_streamp strm, + int good_length, + int max_lazy, + int nice_length, + int max_chain)); +/* + Fine tune deflate's internal compression parameters. This should only be + used by someone who understands the algorithm used by zlib's deflate for + searching for the best matching string, and even then only by the most + fanatic optimizer trying to squeeze out the last compressed bit for their + specific input data. Read the deflate.c source code for the meaning of the + max_lazy, good_length, nice_length, and max_chain parameters. + + deflateTune() can be called after deflateInit() or deflateInit2(), and + returns Z_OK on success, or Z_STREAM_ERROR for an invalid deflate stream. + */ + +ZEXTERN uLong ZEXPORT deflateBound OF((z_streamp strm, + uLong sourceLen)); +/* + deflateBound() returns an upper bound on the compressed size after + deflation of sourceLen bytes. It must be called after deflateInit() or + deflateInit2(), and after deflateSetHeader(), if used. This would be used + to allocate an output buffer for deflation in a single pass, and so would be + called before deflate(). +*/ + +ZEXTERN int ZEXPORT deflatePrime OF((z_streamp strm, + int bits, + int value)); +/* + deflatePrime() inserts bits in the deflate output stream. The intent + is that this function is used to start off the deflate output with the bits + leftover from a previous deflate stream when appending to it. As such, this + function can only be used for raw deflate, and must be used before the first + deflate() call after a deflateInit2() or deflateReset(). bits must be less + than or equal to 16, and that many of the least significant bits of value + will be inserted in the output. + + deflatePrime returns Z_OK if success, or Z_STREAM_ERROR if the source + stream state was inconsistent. +*/ + +ZEXTERN int ZEXPORT deflateSetHeader OF((z_streamp strm, + gz_headerp head)); +/* + deflateSetHeader() provides gzip header information for when a gzip + stream is requested by deflateInit2(). deflateSetHeader() may be called + after deflateInit2() or deflateReset() and before the first call of + deflate(). The text, time, os, extra field, name, and comment information + in the provided gz_header structure are written to the gzip header (xflag is + ignored -- the extra flags are set according to the compression level). The + caller must assure that, if not Z_NULL, name and comment are terminated with + a zero byte, and that if extra is not Z_NULL, that extra_len bytes are + available there. If hcrc is true, a gzip header crc is included. Note that + the current versions of the command-line version of gzip (up through version + 1.3.x) do not support header crc's, and will report that it is a "multi-part + gzip file" and give up. + + If deflateSetHeader is not used, the default gzip header has text false, + the time set to zero, and os set to 255, with no extra, name, or comment + fields. The gzip header is returned to the default state by deflateReset(). + + deflateSetHeader returns Z_OK if success, or Z_STREAM_ERROR if the source + stream state was inconsistent. +*/ + +/* +ZEXTERN int ZEXPORT inflateInit2 OF((z_streamp strm, + int windowBits)); + + This is another version of inflateInit with an extra parameter. The + fields next_in, avail_in, zalloc, zfree and opaque must be initialized + before by the caller. + + The windowBits parameter is the base two logarithm of the maximum window + size (the size of the history buffer). It should be in the range 8..15 for + this version of the library. The default value is 15 if inflateInit is used + instead. windowBits must be greater than or equal to the windowBits value + provided to deflateInit2() while compressing, or it must be equal to 15 if + deflateInit2() was not used. If a compressed stream with a larger window + size is given as input, inflate() will return with the error code + Z_DATA_ERROR instead of trying to allocate a larger window. + + windowBits can also be zero to request that inflate use the window size in + the zlib header of the compressed stream. + + windowBits can also be -8..-15 for raw inflate. In this case, -windowBits + determines the window size. inflate() will then process raw deflate data, + not looking for a zlib or gzip header, not generating a check value, and not + looking for any check values for comparison at the end of the stream. This + is for use with other formats that use the deflate compressed data format + such as zip. Those formats provide their own check values. If a custom + format is developed using the raw deflate format for compressed data, it is + recommended that a check value such as an adler32 or a crc32 be applied to + the uncompressed data as is done in the zlib, gzip, and zip formats. For + most applications, the zlib format should be used as is. Note that comments + above on the use in deflateInit2() applies to the magnitude of windowBits. + + windowBits can also be greater than 15 for optional gzip decoding. Add + 32 to windowBits to enable zlib and gzip decoding with automatic header + detection, or add 16 to decode only the gzip format (the zlib format will + return a Z_DATA_ERROR). If a gzip stream is being decoded, strm->adler is a + crc32 instead of an adler32. + + inflateInit2 returns Z_OK if success, Z_MEM_ERROR if there was not enough + memory, Z_VERSION_ERROR if the zlib library version is incompatible with the + version assumed by the caller, or Z_STREAM_ERROR if the parameters are + invalid, such as a null pointer to the structure. msg is set to null if + there is no error message. inflateInit2 does not perform any decompression + apart from possibly reading the zlib header if present: actual decompression + will be done by inflate(). (So next_in and avail_in may be modified, but + next_out and avail_out are unused and unchanged.) The current implementation + of inflateInit2() does not process any header information -- that is + deferred until inflate() is called. +*/ + +ZEXTERN int ZEXPORT inflateSetDictionary OF((z_streamp strm, + const Bytef *dictionary, + uInt dictLength)); +/* + Initializes the decompression dictionary from the given uncompressed byte + sequence. This function must be called immediately after a call of inflate, + if that call returned Z_NEED_DICT. The dictionary chosen by the compressor + can be determined from the adler32 value returned by that call of inflate. + The compressor and decompressor must use exactly the same dictionary (see + deflateSetDictionary). For raw inflate, this function can be called + immediately after inflateInit2() or inflateReset() and before any call of + inflate() to set the dictionary. The application must insure that the + dictionary that was used for compression is provided. + + inflateSetDictionary returns Z_OK if success, Z_STREAM_ERROR if a + parameter is invalid (e.g. dictionary being Z_NULL) or the stream state is + inconsistent, Z_DATA_ERROR if the given dictionary doesn't match the + expected one (incorrect adler32 value). inflateSetDictionary does not + perform any decompression: this will be done by subsequent calls of + inflate(). +*/ + +ZEXTERN int ZEXPORT inflateSync OF((z_streamp strm)); +/* + Skips invalid compressed data until a full flush point (see above the + description of deflate with Z_FULL_FLUSH) can be found, or until all + available input is skipped. No output is provided. + + inflateSync returns Z_OK if a full flush point has been found, Z_BUF_ERROR + if no more input was provided, Z_DATA_ERROR if no flush point has been + found, or Z_STREAM_ERROR if the stream structure was inconsistent. In the + success case, the application may save the current current value of total_in + which indicates where valid compressed data was found. In the error case, + the application may repeatedly call inflateSync, providing more input each + time, until success or end of the input data. +*/ + +ZEXTERN int ZEXPORT inflateCopy OF((z_streamp dest, + z_streamp source)); +/* + Sets the destination stream as a complete copy of the source stream. + + This function can be useful when randomly accessing a large stream. The + first pass through the stream can periodically record the inflate state, + allowing restarting inflate at those points when randomly accessing the + stream. + + inflateCopy returns Z_OK if success, Z_MEM_ERROR if there was not + enough memory, Z_STREAM_ERROR if the source stream state was inconsistent + (such as zalloc being Z_NULL). msg is left unchanged in both source and + destination. +*/ + +ZEXTERN int ZEXPORT inflateReset OF((z_streamp strm)); +/* + This function is equivalent to inflateEnd followed by inflateInit, + but does not free and reallocate all the internal decompression state. The + stream will keep attributes that may have been set by inflateInit2. + + inflateReset returns Z_OK if success, or Z_STREAM_ERROR if the source + stream state was inconsistent (such as zalloc or state being Z_NULL). +*/ + +ZEXTERN int ZEXPORT inflateReset2 OF((z_streamp strm, + int windowBits)); +/* + This function is the same as inflateReset, but it also permits changing + the wrap and window size requests. The windowBits parameter is interpreted + the same as it is for inflateInit2. + + inflateReset2 returns Z_OK if success, or Z_STREAM_ERROR if the source + stream state was inconsistent (such as zalloc or state being Z_NULL), or if + the windowBits parameter is invalid. +*/ + +ZEXTERN int ZEXPORT inflatePrime OF((z_streamp strm, + int bits, + int value)); +/* + This function inserts bits in the inflate input stream. The intent is + that this function is used to start inflating at a bit position in the + middle of a byte. The provided bits will be used before any bytes are used + from next_in. This function should only be used with raw inflate, and + should be used before the first inflate() call after inflateInit2() or + inflateReset(). bits must be less than or equal to 16, and that many of the + least significant bits of value will be inserted in the input. + + If bits is negative, then the input stream bit buffer is emptied. Then + inflatePrime() can be called again to put bits in the buffer. This is used + to clear out bits leftover after feeding inflate a block description prior + to feeding inflate codes. + + inflatePrime returns Z_OK if success, or Z_STREAM_ERROR if the source + stream state was inconsistent. +*/ + +ZEXTERN long ZEXPORT inflateMark OF((z_streamp strm)); +/* + This function returns two values, one in the lower 16 bits of the return + value, and the other in the remaining upper bits, obtained by shifting the + return value down 16 bits. If the upper value is -1 and the lower value is + zero, then inflate() is currently decoding information outside of a block. + If the upper value is -1 and the lower value is non-zero, then inflate is in + the middle of a stored block, with the lower value equaling the number of + bytes from the input remaining to copy. If the upper value is not -1, then + it is the number of bits back from the current bit position in the input of + the code (literal or length/distance pair) currently being processed. In + that case the lower value is the number of bytes already emitted for that + code. + + A code is being processed if inflate is waiting for more input to complete + decoding of the code, or if it has completed decoding but is waiting for + more output space to write the literal or match data. + + inflateMark() is used to mark locations in the input data for random + access, which may be at bit positions, and to note those cases where the + output of a code may span boundaries of random access blocks. The current + location in the input stream can be determined from avail_in and data_type + as noted in the description for the Z_BLOCK flush parameter for inflate. + + inflateMark returns the value noted above or -1 << 16 if the provided + source stream state was inconsistent. +*/ + +ZEXTERN int ZEXPORT inflateGetHeader OF((z_streamp strm, + gz_headerp head)); +/* + inflateGetHeader() requests that gzip header information be stored in the + provided gz_header structure. inflateGetHeader() may be called after + inflateInit2() or inflateReset(), and before the first call of inflate(). + As inflate() processes the gzip stream, head->done is zero until the header + is completed, at which time head->done is set to one. If a zlib stream is + being decoded, then head->done is set to -1 to indicate that there will be + no gzip header information forthcoming. Note that Z_BLOCK or Z_TREES can be + used to force inflate() to return immediately after header processing is + complete and before any actual data is decompressed. + + The text, time, xflags, and os fields are filled in with the gzip header + contents. hcrc is set to true if there is a header CRC. (The header CRC + was valid if done is set to one.) If extra is not Z_NULL, then extra_max + contains the maximum number of bytes to write to extra. Once done is true, + extra_len contains the actual extra field length, and extra contains the + extra field, or that field truncated if extra_max is less than extra_len. + If name is not Z_NULL, then up to name_max characters are written there, + terminated with a zero unless the length is greater than name_max. If + comment is not Z_NULL, then up to comm_max characters are written there, + terminated with a zero unless the length is greater than comm_max. When any + of extra, name, or comment are not Z_NULL and the respective field is not + present in the header, then that field is set to Z_NULL to signal its + absence. This allows the use of deflateSetHeader() with the returned + structure to duplicate the header. However if those fields are set to + allocated memory, then the application will need to save those pointers + elsewhere so that they can be eventually freed. + + If inflateGetHeader is not used, then the header information is simply + discarded. The header is always checked for validity, including the header + CRC if present. inflateReset() will reset the process to discard the header + information. The application would need to call inflateGetHeader() again to + retrieve the header from the next gzip stream. + + inflateGetHeader returns Z_OK if success, or Z_STREAM_ERROR if the source + stream state was inconsistent. +*/ + +/* +ZEXTERN int ZEXPORT inflateBackInit OF((z_streamp strm, int windowBits, + unsigned char FAR *window)); + + Initialize the internal stream state for decompression using inflateBack() + calls. The fields zalloc, zfree and opaque in strm must be initialized + before the call. If zalloc and zfree are Z_NULL, then the default library- + derived memory allocation routines are used. windowBits is the base two + logarithm of the window size, in the range 8..15. window is a caller + supplied buffer of that size. Except for special applications where it is + assured that deflate was used with small window sizes, windowBits must be 15 + and a 32K byte window must be supplied to be able to decompress general + deflate streams. + + See inflateBack() for the usage of these routines. + + inflateBackInit will return Z_OK on success, Z_STREAM_ERROR if any of + the paramaters are invalid, Z_MEM_ERROR if the internal state could not be + allocated, or Z_VERSION_ERROR if the version of the library does not match + the version of the header file. +*/ + +typedef unsigned (*in_func) OF((void FAR *, unsigned char FAR * FAR *)); +typedef int (*out_func) OF((void FAR *, unsigned char FAR *, unsigned)); + +ZEXTERN int ZEXPORT inflateBack OF((z_streamp strm, + in_func in, void FAR *in_desc, + out_func out, void FAR *out_desc)); +/* + inflateBack() does a raw inflate with a single call using a call-back + interface for input and output. This is more efficient than inflate() for + file i/o applications in that it avoids copying between the output and the + sliding window by simply making the window itself the output buffer. This + function trusts the application to not change the output buffer passed by + the output function, at least until inflateBack() returns. + + inflateBackInit() must be called first to allocate the internal state + and to initialize the state with the user-provided window buffer. + inflateBack() may then be used multiple times to inflate a complete, raw + deflate stream with each call. inflateBackEnd() is then called to free the + allocated state. + + A raw deflate stream is one with no zlib or gzip header or trailer. + This routine would normally be used in a utility that reads zip or gzip + files and writes out uncompressed files. The utility would decode the + header and process the trailer on its own, hence this routine expects only + the raw deflate stream to decompress. This is different from the normal + behavior of inflate(), which expects either a zlib or gzip header and + trailer around the deflate stream. + + inflateBack() uses two subroutines supplied by the caller that are then + called by inflateBack() for input and output. inflateBack() calls those + routines until it reads a complete deflate stream and writes out all of the + uncompressed data, or until it encounters an error. The function's + parameters and return types are defined above in the in_func and out_func + typedefs. inflateBack() will call in(in_desc, &buf) which should return the + number of bytes of provided input, and a pointer to that input in buf. If + there is no input available, in() must return zero--buf is ignored in that + case--and inflateBack() will return a buffer error. inflateBack() will call + out(out_desc, buf, len) to write the uncompressed data buf[0..len-1]. out() + should return zero on success, or non-zero on failure. If out() returns + non-zero, inflateBack() will return with an error. Neither in() nor out() + are permitted to change the contents of the window provided to + inflateBackInit(), which is also the buffer that out() uses to write from. + The length written by out() will be at most the window size. Any non-zero + amount of input may be provided by in(). + + For convenience, inflateBack() can be provided input on the first call by + setting strm->next_in and strm->avail_in. If that input is exhausted, then + in() will be called. Therefore strm->next_in must be initialized before + calling inflateBack(). If strm->next_in is Z_NULL, then in() will be called + immediately for input. If strm->next_in is not Z_NULL, then strm->avail_in + must also be initialized, and then if strm->avail_in is not zero, input will + initially be taken from strm->next_in[0 .. strm->avail_in - 1]. + + The in_desc and out_desc parameters of inflateBack() is passed as the + first parameter of in() and out() respectively when they are called. These + descriptors can be optionally used to pass any information that the caller- + supplied in() and out() functions need to do their job. + + On return, inflateBack() will set strm->next_in and strm->avail_in to + pass back any unused input that was provided by the last in() call. The + return values of inflateBack() can be Z_STREAM_END on success, Z_BUF_ERROR + if in() or out() returned an error, Z_DATA_ERROR if there was a format error + in the deflate stream (in which case strm->msg is set to indicate the nature + of the error), or Z_STREAM_ERROR if the stream was not properly initialized. + In the case of Z_BUF_ERROR, an input or output error can be distinguished + using strm->next_in which will be Z_NULL only if in() returned an error. If + strm->next_in is not Z_NULL, then the Z_BUF_ERROR was due to out() returning + non-zero. (in() will always be called before out(), so strm->next_in is + assured to be defined if out() returns non-zero.) Note that inflateBack() + cannot return Z_OK. +*/ + +ZEXTERN int ZEXPORT inflateBackEnd OF((z_streamp strm)); +/* + All memory allocated by inflateBackInit() is freed. + + inflateBackEnd() returns Z_OK on success, or Z_STREAM_ERROR if the stream + state was inconsistent. +*/ + +ZEXTERN uLong ZEXPORT zlibCompileFlags OF((void)); +/* Return flags indicating compile-time options. + + Type sizes, two bits each, 00 = 16 bits, 01 = 32, 10 = 64, 11 = other: + 1.0: size of uInt + 3.2: size of uLong + 5.4: size of voidpf (pointer) + 7.6: size of z_off_t + + Compiler, assembler, and debug options: + 8: DEBUG + 9: ASMV or ASMINF -- use ASM code + 10: ZLIB_WINAPI -- exported functions use the WINAPI calling convention + 11: 0 (reserved) + + One-time table building (smaller code, but not thread-safe if true): + 12: BUILDFIXED -- build static block decoding tables when needed + 13: DYNAMIC_CRC_TABLE -- build CRC calculation tables when needed + 14,15: 0 (reserved) + + Library content (indicates missing functionality): + 16: NO_GZCOMPRESS -- gz* functions cannot compress (to avoid linking + deflate code when not needed) + 17: NO_GZIP -- deflate can't write gzip streams, and inflate can't detect + and decode gzip streams (to avoid linking crc code) + 18-19: 0 (reserved) + + Operation variations (changes in library functionality): + 20: PKZIP_BUG_WORKAROUND -- slightly more permissive inflate + 21: FASTEST -- deflate algorithm with only one, lowest compression level + 22,23: 0 (reserved) + + The sprintf variant used by gzprintf (zero is best): + 24: 0 = vs*, 1 = s* -- 1 means limited to 20 arguments after the format + 25: 0 = *nprintf, 1 = *printf -- 1 means gzprintf() not secure! + 26: 0 = returns value, 1 = void -- 1 means inferred string length returned + + Remainder: + 27-31: 0 (reserved) + */ + + + /* utility functions */ + +/* + The following utility functions are implemented on top of the basic + stream-oriented functions. To simplify the interface, some default options + are assumed (compression level and memory usage, standard memory allocation + functions). The source code of these utility functions can be modified if + you need special options. +*/ + +ZEXTERN int ZEXPORT compress OF((Bytef *dest, uLongf *destLen, + const Bytef *source, uLong sourceLen)); +/* + Compresses the source buffer into the destination buffer. sourceLen is + the byte length of the source buffer. Upon entry, destLen is the total size + of the destination buffer, which must be at least the value returned by + compressBound(sourceLen). Upon exit, destLen is the actual size of the + compressed buffer. + + compress returns Z_OK if success, Z_MEM_ERROR if there was not + enough memory, Z_BUF_ERROR if there was not enough room in the output + buffer. +*/ + +ZEXTERN int ZEXPORT compress2 OF((Bytef *dest, uLongf *destLen, + const Bytef *source, uLong sourceLen, + int level)); +/* + Compresses the source buffer into the destination buffer. The level + parameter has the same meaning as in deflateInit. sourceLen is the byte + length of the source buffer. Upon entry, destLen is the total size of the + destination buffer, which must be at least the value returned by + compressBound(sourceLen). Upon exit, destLen is the actual size of the + compressed buffer. + + compress2 returns Z_OK if success, Z_MEM_ERROR if there was not enough + memory, Z_BUF_ERROR if there was not enough room in the output buffer, + Z_STREAM_ERROR if the level parameter is invalid. +*/ + +ZEXTERN uLong ZEXPORT compressBound OF((uLong sourceLen)); +/* + compressBound() returns an upper bound on the compressed size after + compress() or compress2() on sourceLen bytes. It would be used before a + compress() or compress2() call to allocate the destination buffer. +*/ + +ZEXTERN int ZEXPORT uncompress OF((Bytef *dest, uLongf *destLen, + const Bytef *source, uLong sourceLen)); +/* + Decompresses the source buffer into the destination buffer. sourceLen is + the byte length of the source buffer. Upon entry, destLen is the total size + of the destination buffer, which must be large enough to hold the entire + uncompressed data. (The size of the uncompressed data must have been saved + previously by the compressor and transmitted to the decompressor by some + mechanism outside the scope of this compression library.) Upon exit, destLen + is the actual size of the uncompressed buffer. + + uncompress returns Z_OK if success, Z_MEM_ERROR if there was not + enough memory, Z_BUF_ERROR if there was not enough room in the output + buffer, or Z_DATA_ERROR if the input data was corrupted or incomplete. +*/ + + + /* gzip file access functions */ + +/* + This library supports reading and writing files in gzip (.gz) format with + an interface similar to that of stdio, using the functions that start with + "gz". The gzip format is different from the zlib format. gzip is a gzip + wrapper, documented in RFC 1952, wrapped around a deflate stream. +*/ + +typedef voidp gzFile; /* opaque gzip file descriptor */ + +/* +ZEXTERN gzFile ZEXPORT gzopen OF((const char *path, const char *mode)); + + Opens a gzip (.gz) file for reading or writing. The mode parameter is as + in fopen ("rb" or "wb") but can also include a compression level ("wb9") or + a strategy: 'f' for filtered data as in "wb6f", 'h' for Huffman-only + compression as in "wb1h", 'R' for run-length encoding as in "wb1R", or 'F' + for fixed code compression as in "wb9F". (See the description of + deflateInit2 for more information about the strategy parameter.) Also "a" + can be used instead of "w" to request that the gzip stream that will be + written be appended to the file. "+" will result in an error, since reading + and writing to the same gzip file is not supported. + + gzopen can be used to read a file which is not in gzip format; in this + case gzread will directly read from the file without decompression. + + gzopen returns NULL if the file could not be opened, if there was + insufficient memory to allocate the gzFile state, or if an invalid mode was + specified (an 'r', 'w', or 'a' was not provided, or '+' was provided). + errno can be checked to determine if the reason gzopen failed was that the + file could not be opened. +*/ + +ZEXTERN gzFile ZEXPORT gzdopen OF((int fd, const char *mode)); +/* + gzdopen associates a gzFile with the file descriptor fd. File descriptors + are obtained from calls like open, dup, creat, pipe or fileno (if the file + has been previously opened with fopen). The mode parameter is as in gzopen. + + The next call of gzclose on the returned gzFile will also close the file + descriptor fd, just like fclose(fdopen(fd, mode)) closes the file descriptor + fd. If you want to keep fd open, use fd = dup(fd_keep); gz = gzdopen(fd, + mode);. The duplicated descriptor should be saved to avoid a leak, since + gzdopen does not close fd if it fails. + + gzdopen returns NULL if there was insufficient memory to allocate the + gzFile state, if an invalid mode was specified (an 'r', 'w', or 'a' was not + provided, or '+' was provided), or if fd is -1. The file descriptor is not + used until the next gz* read, write, seek, or close operation, so gzdopen + will not detect if fd is invalid (unless fd is -1). +*/ + +ZEXTERN int ZEXPORT gzbuffer OF((gzFile file, unsigned size)); +/* + Set the internal buffer size used by this library's functions. The + default buffer size is 8192 bytes. This function must be called after + gzopen() or gzdopen(), and before any other calls that read or write the + file. The buffer memory allocation is always deferred to the first read or + write. Two buffers are allocated, either both of the specified size when + writing, or one of the specified size and the other twice that size when + reading. A larger buffer size of, for example, 64K or 128K bytes will + noticeably increase the speed of decompression (reading). + + The new buffer size also affects the maximum length for gzprintf(). + + gzbuffer() returns 0 on success, or -1 on failure, such as being called + too late. +*/ + +ZEXTERN int ZEXPORT gzsetparams OF((gzFile file, int level, int strategy)); +/* + Dynamically update the compression level or strategy. See the description + of deflateInit2 for the meaning of these parameters. + + gzsetparams returns Z_OK if success, or Z_STREAM_ERROR if the file was not + opened for writing. +*/ + +ZEXTERN int ZEXPORT gzread OF((gzFile file, voidp buf, unsigned len)); +/* + Reads the given number of uncompressed bytes from the compressed file. If + the input file was not in gzip format, gzread copies the given number of + bytes into the buffer. + + After reaching the end of a gzip stream in the input, gzread will continue + to read, looking for another gzip stream, or failing that, reading the rest + of the input file directly without decompression. The entire input file + will be read if gzread is called until it returns less than the requested + len. + + gzread returns the number of uncompressed bytes actually read, less than + len for end of file, or -1 for error. +*/ + +ZEXTERN int ZEXPORT gzwrite OF((gzFile file, + voidpc buf, unsigned len)); +/* + Writes the given number of uncompressed bytes into the compressed file. + gzwrite returns the number of uncompressed bytes written or 0 in case of + error. +*/ + +ZEXTERN int ZEXPORTVA gzprintf OF((gzFile file, const char *format, ...)); +/* + Converts, formats, and writes the arguments to the compressed file under + control of the format string, as in fprintf. gzprintf returns the number of + uncompressed bytes actually written, or 0 in case of error. The number of + uncompressed bytes written is limited to 8191, or one less than the buffer + size given to gzbuffer(). The caller should assure that this limit is not + exceeded. If it is exceeded, then gzprintf() will return an error (0) with + nothing written. In this case, there may also be a buffer overflow with + unpredictable consequences, which is possible only if zlib was compiled with + the insecure functions sprintf() or vsprintf() because the secure snprintf() + or vsnprintf() functions were not available. This can be determined using + zlibCompileFlags(). +*/ + +ZEXTERN int ZEXPORT gzputs OF((gzFile file, const char *s)); +/* + Writes the given null-terminated string to the compressed file, excluding + the terminating null character. + + gzputs returns the number of characters written, or -1 in case of error. +*/ + +ZEXTERN char * ZEXPORT gzgets OF((gzFile file, char *buf, int len)); +/* + Reads bytes from the compressed file until len-1 characters are read, or a + newline character is read and transferred to buf, or an end-of-file + condition is encountered. If any characters are read or if len == 1, the + string is terminated with a null character. If no characters are read due + to an end-of-file or len < 1, then the buffer is left untouched. + + gzgets returns buf which is a null-terminated string, or it returns NULL + for end-of-file or in case of error. If there was an error, the contents at + buf are indeterminate. +*/ + +ZEXTERN int ZEXPORT gzputc OF((gzFile file, int c)); +/* + Writes c, converted to an unsigned char, into the compressed file. gzputc + returns the value that was written, or -1 in case of error. +*/ + +ZEXTERN int ZEXPORT gzgetc OF((gzFile file)); +/* + Reads one byte from the compressed file. gzgetc returns this byte or -1 + in case of end of file or error. +*/ + +ZEXTERN int ZEXPORT gzungetc OF((int c, gzFile file)); +/* + Push one character back onto the stream to be read as the first character + on the next read. At least one character of push-back is allowed. + gzungetc() returns the character pushed, or -1 on failure. gzungetc() will + fail if c is -1, and may fail if a character has been pushed but not read + yet. If gzungetc is used immediately after gzopen or gzdopen, at least the + output buffer size of pushed characters is allowed. (See gzbuffer above.) + The pushed character will be discarded if the stream is repositioned with + gzseek() or gzrewind(). +*/ + +ZEXTERN int ZEXPORT gzflush OF((gzFile file, int flush)); +/* + Flushes all pending output into the compressed file. The parameter flush + is as in the deflate() function. The return value is the zlib error number + (see function gzerror below). gzflush is only permitted when writing. + + If the flush parameter is Z_FINISH, the remaining data is written and the + gzip stream is completed in the output. If gzwrite() is called again, a new + gzip stream will be started in the output. gzread() is able to read such + concatented gzip streams. + + gzflush should be called only when strictly necessary because it will + degrade compression if called too often. +*/ + +/* +ZEXTERN z_off_t ZEXPORT gzseek OF((gzFile file, + z_off_t offset, int whence)); + + Sets the starting position for the next gzread or gzwrite on the given + compressed file. The offset represents a number of bytes in the + uncompressed data stream. The whence parameter is defined as in lseek(2); + the value SEEK_END is not supported. + + If the file is opened for reading, this function is emulated but can be + extremely slow. If the file is opened for writing, only forward seeks are + supported; gzseek then compresses a sequence of zeroes up to the new + starting position. + + gzseek returns the resulting offset location as measured in bytes from + the beginning of the uncompressed stream, or -1 in case of error, in + particular if the file is opened for writing and the new starting position + would be before the current position. +*/ + +ZEXTERN int ZEXPORT gzrewind OF((gzFile file)); +/* + Rewinds the given file. This function is supported only for reading. + + gzrewind(file) is equivalent to (int)gzseek(file, 0L, SEEK_SET) +*/ + +/* +ZEXTERN z_off_t ZEXPORT gztell OF((gzFile file)); + + Returns the starting position for the next gzread or gzwrite on the given + compressed file. This position represents a number of bytes in the + uncompressed data stream, and is zero when starting, even if appending or + reading a gzip stream from the middle of a file using gzdopen(). + + gztell(file) is equivalent to gzseek(file, 0L, SEEK_CUR) +*/ + +/* +ZEXTERN z_off_t ZEXPORT gzoffset OF((gzFile file)); + + Returns the current offset in the file being read or written. This offset + includes the count of bytes that precede the gzip stream, for example when + appending or when using gzdopen() for reading. When reading, the offset + does not include as yet unused buffered input. This information can be used + for a progress indicator. On error, gzoffset() returns -1. +*/ + +ZEXTERN int ZEXPORT gzeof OF((gzFile file)); +/* + Returns true (1) if the end-of-file indicator has been set while reading, + false (0) otherwise. Note that the end-of-file indicator is set only if the + read tried to go past the end of the input, but came up short. Therefore, + just like feof(), gzeof() may return false even if there is no more data to + read, in the event that the last read request was for the exact number of + bytes remaining in the input file. This will happen if the input file size + is an exact multiple of the buffer size. + + If gzeof() returns true, then the read functions will return no more data, + unless the end-of-file indicator is reset by gzclearerr() and the input file + has grown since the previous end of file was detected. +*/ + +ZEXTERN int ZEXPORT gzdirect OF((gzFile file)); +/* + Returns true (1) if file is being copied directly while reading, or false + (0) if file is a gzip stream being decompressed. This state can change from + false to true while reading the input file if the end of a gzip stream is + reached, but is followed by data that is not another gzip stream. + + If the input file is empty, gzdirect() will return true, since the input + does not contain a gzip stream. + + If gzdirect() is used immediately after gzopen() or gzdopen() it will + cause buffers to be allocated to allow reading the file to determine if it + is a gzip file. Therefore if gzbuffer() is used, it should be called before + gzdirect(). +*/ + +ZEXTERN int ZEXPORT gzclose OF((gzFile file)); +/* + Flushes all pending output if necessary, closes the compressed file and + deallocates the (de)compression state. Note that once file is closed, you + cannot call gzerror with file, since its structures have been deallocated. + gzclose must not be called more than once on the same file, just as free + must not be called more than once on the same allocation. + + gzclose will return Z_STREAM_ERROR if file is not valid, Z_ERRNO on a + file operation error, or Z_OK on success. +*/ + +ZEXTERN int ZEXPORT gzclose_r OF((gzFile file)); +ZEXTERN int ZEXPORT gzclose_w OF((gzFile file)); +/* + Same as gzclose(), but gzclose_r() is only for use when reading, and + gzclose_w() is only for use when writing or appending. The advantage to + using these instead of gzclose() is that they avoid linking in zlib + compression or decompression code that is not used when only reading or only + writing respectively. If gzclose() is used, then both compression and + decompression code will be included the application when linking to a static + zlib library. +*/ + +ZEXTERN const char * ZEXPORT gzerror OF((gzFile file, int *errnum)); +/* + Returns the error message for the last error which occurred on the given + compressed file. errnum is set to zlib error number. If an error occurred + in the file system and not in the compression library, errnum is set to + Z_ERRNO and the application may consult errno to get the exact error code. + + The application must not modify the returned string. Future calls to + this function may invalidate the previously returned string. If file is + closed, then the string previously returned by gzerror will no longer be + available. + + gzerror() should be used to distinguish errors from end-of-file for those + functions above that do not distinguish those cases in their return values. +*/ + +ZEXTERN void ZEXPORT gzclearerr OF((gzFile file)); +/* + Clears the error and end-of-file flags for file. This is analogous to the + clearerr() function in stdio. This is useful for continuing to read a gzip + file that is being written concurrently. +*/ + + + /* checksum functions */ + +/* + These functions are not related to compression but are exported + anyway because they might be useful in applications using the compression + library. +*/ + +ZEXTERN uLong ZEXPORT adler32 OF((uLong adler, const Bytef *buf, uInt len)); +/* + Update a running Adler-32 checksum with the bytes buf[0..len-1] and + return the updated checksum. If buf is Z_NULL, this function returns the + required initial value for the checksum. + + An Adler-32 checksum is almost as reliable as a CRC32 but can be computed + much faster. + + Usage example: + + uLong adler = adler32(0L, Z_NULL, 0); + + while (read_buffer(buffer, length) != EOF) { + adler = adler32(adler, buffer, length); + } + if (adler != original_adler) error(); +*/ + +/* +ZEXTERN uLong ZEXPORT adler32_combine OF((uLong adler1, uLong adler2, + z_off_t len2)); + + Combine two Adler-32 checksums into one. For two sequences of bytes, seq1 + and seq2 with lengths len1 and len2, Adler-32 checksums were calculated for + each, adler1 and adler2. adler32_combine() returns the Adler-32 checksum of + seq1 and seq2 concatenated, requiring only adler1, adler2, and len2. +*/ + +ZEXTERN uLong ZEXPORT crc32 OF((uLong crc, const Bytef *buf, uInt len)); +/* + Update a running CRC-32 with the bytes buf[0..len-1] and return the + updated CRC-32. If buf is Z_NULL, this function returns the required + initial value for the for the crc. Pre- and post-conditioning (one's + complement) is performed within this function so it shouldn't be done by the + application. + + Usage example: + + uLong crc = crc32(0L, Z_NULL, 0); + + while (read_buffer(buffer, length) != EOF) { + crc = crc32(crc, buffer, length); + } + if (crc != original_crc) error(); +*/ + +/* +ZEXTERN uLong ZEXPORT crc32_combine OF((uLong crc1, uLong crc2, z_off_t len2)); + + Combine two CRC-32 check values into one. For two sequences of bytes, + seq1 and seq2 with lengths len1 and len2, CRC-32 check values were + calculated for each, crc1 and crc2. crc32_combine() returns the CRC-32 + check value of seq1 and seq2 concatenated, requiring only crc1, crc2, and + len2. +*/ + + + /* various hacks, don't look :) */ + +/* deflateInit and inflateInit are macros to allow checking the zlib version + * and the compiler's view of z_stream: + */ +ZEXTERN int ZEXPORT deflateInit_ OF((z_streamp strm, int level, + const char *version, int stream_size)); +ZEXTERN int ZEXPORT inflateInit_ OF((z_streamp strm, + const char *version, int stream_size)); +ZEXTERN int ZEXPORT deflateInit2_ OF((z_streamp strm, int level, int method, + int windowBits, int memLevel, + int strategy, const char *version, + int stream_size)); +ZEXTERN int ZEXPORT inflateInit2_ OF((z_streamp strm, int windowBits, + const char *version, int stream_size)); +ZEXTERN int ZEXPORT inflateBackInit_ OF((z_streamp strm, int windowBits, + unsigned char FAR *window, + const char *version, + int stream_size)); +#define deflateInit(strm, level) \ + deflateInit_((strm), (level), ZLIB_VERSION, sizeof(z_stream)) +#define inflateInit(strm) \ + inflateInit_((strm), ZLIB_VERSION, sizeof(z_stream)) +#define deflateInit2(strm, level, method, windowBits, memLevel, strategy) \ + deflateInit2_((strm),(level),(method),(windowBits),(memLevel),\ + (strategy), ZLIB_VERSION, sizeof(z_stream)) +#define inflateInit2(strm, windowBits) \ + inflateInit2_((strm), (windowBits), ZLIB_VERSION, sizeof(z_stream)) +#define inflateBackInit(strm, windowBits, window) \ + inflateBackInit_((strm), (windowBits), (window), \ + ZLIB_VERSION, sizeof(z_stream)) + +/* provide 64-bit offset functions if _LARGEFILE64_SOURCE defined, and/or + * change the regular functions to 64 bits if _FILE_OFFSET_BITS is 64 (if + * both are true, the application gets the *64 functions, and the regular + * functions are changed to 64 bits) -- in case these are set on systems + * without large file support, _LFS64_LARGEFILE must also be true + */ +#if defined(_LARGEFILE64_SOURCE) && _LFS64_LARGEFILE-0 + ZEXTERN gzFile ZEXPORT gzopen64 OF((const char *, const char *)); + ZEXTERN z_off64_t ZEXPORT gzseek64 OF((gzFile, z_off64_t, int)); + ZEXTERN z_off64_t ZEXPORT gztell64 OF((gzFile)); + ZEXTERN z_off64_t ZEXPORT gzoffset64 OF((gzFile)); + ZEXTERN uLong ZEXPORT adler32_combine64 OF((uLong, uLong, z_off64_t)); + ZEXTERN uLong ZEXPORT crc32_combine64 OF((uLong, uLong, z_off64_t)); +#endif + +#if !defined(ZLIB_INTERNAL) && _FILE_OFFSET_BITS-0 == 64 && _LFS64_LARGEFILE-0 +# define gzopen gzopen64 +# define gzseek gzseek64 +# define gztell gztell64 +# define gzoffset gzoffset64 +# define adler32_combine adler32_combine64 +# define crc32_combine crc32_combine64 +# ifdef _LARGEFILE64_SOURCE + ZEXTERN gzFile ZEXPORT gzopen64 OF((const char *, const char *)); + ZEXTERN z_off_t ZEXPORT gzseek64 OF((gzFile, z_off_t, int)); + ZEXTERN z_off_t ZEXPORT gztell64 OF((gzFile)); + ZEXTERN z_off_t ZEXPORT gzoffset64 OF((gzFile)); + ZEXTERN uLong ZEXPORT adler32_combine64 OF((uLong, uLong, z_off_t)); + ZEXTERN uLong ZEXPORT crc32_combine64 OF((uLong, uLong, z_off_t)); +# endif +#else + ZEXTERN gzFile ZEXPORT gzopen OF((const char *, const char *)); + ZEXTERN z_off_t ZEXPORT gzseek OF((gzFile, z_off_t, int)); + ZEXTERN z_off_t ZEXPORT gztell OF((gzFile)); + ZEXTERN z_off_t ZEXPORT gzoffset OF((gzFile)); + ZEXTERN uLong ZEXPORT adler32_combine OF((uLong, uLong, z_off_t)); + ZEXTERN uLong ZEXPORT crc32_combine OF((uLong, uLong, z_off_t)); +#endif + +/* hack for buggy compilers */ +#if !defined(ZUTIL_H) && !defined(NO_DUMMY_DECL) + struct internal_state {int dummy;}; +#endif + +/* undocumented functions */ +ZEXTERN const char * ZEXPORT zError OF((int)); +ZEXTERN int ZEXPORT inflateSyncPoint OF((z_streamp)); +ZEXTERN const uLongf * ZEXPORT get_crc_table OF((void)); +ZEXTERN int ZEXPORT inflateUndermine OF((z_streamp, int)); + +#ifdef __cplusplus +} +#endif + +#endif /* ZLIB_H */ diff --git a/zlib/zlib.map b/zlib/zlib.map new file mode 100644 index 0000000..f282d36 --- /dev/null +++ b/zlib/zlib.map @@ -0,0 +1,68 @@ +ZLIB_1.2.0 { + global: + compressBound; + deflateBound; + inflateBack; + inflateBackEnd; + inflateBackInit_; + inflateCopy; + local: + deflate_copyright; + inflate_copyright; + inflate_fast; + inflate_table; + zcalloc; + zcfree; + z_errmsg; + gz_error; + gz_intmax; + _*; +}; + +ZLIB_1.2.0.2 { + gzclearerr; + gzungetc; + zlibCompileFlags; +} ZLIB_1.2.0; + +ZLIB_1.2.0.8 { + deflatePrime; +} ZLIB_1.2.0.2; + +ZLIB_1.2.2 { + adler32_combine; + crc32_combine; + deflateSetHeader; + inflateGetHeader; +} ZLIB_1.2.0.8; + +ZLIB_1.2.2.3 { + deflateTune; + gzdirect; +} ZLIB_1.2.2; + +ZLIB_1.2.2.4 { + inflatePrime; +} ZLIB_1.2.2.3; + +ZLIB_1.2.3.3 { + adler32_combine64; + crc32_combine64; + gzopen64; + gzseek64; + gztell64; + inflateUndermine; +} ZLIB_1.2.2.4; + +ZLIB_1.2.3.4 { + inflateReset2; + inflateMark; +} ZLIB_1.2.3.3; + +ZLIB_1.2.3.5 { + gzbuffer; + gzoffset; + gzoffset64; + gzclose_r; + gzclose_w; +} ZLIB_1.2.3.4; diff --git a/zlib/zlib.pc.in b/zlib/zlib.pc.in new file mode 100644 index 0000000..7e5acf9 --- /dev/null +++ b/zlib/zlib.pc.in @@ -0,0 +1,13 @@ +prefix=@prefix@ +exec_prefix=@exec_prefix@ +libdir=@libdir@ +sharedlibdir=@sharedlibdir@ +includedir=@includedir@ + +Name: zlib +Description: zlib compression library +Version: @VERSION@ + +Requires: +Libs: -L${libdir} -L${sharedlibdir} -lz +Cflags: -I${includedir} diff --git a/zlib/zlib125.zip b/zlib/zlib125.zip new file mode 100644 index 0000000..e619c6d Binary files /dev/null and b/zlib/zlib125.zip differ diff --git a/zlib/zlib2ansi b/zlib/zlib2ansi new file mode 100644 index 0000000..15e3e16 --- /dev/null +++ b/zlib/zlib2ansi @@ -0,0 +1,152 @@ +#!/usr/bin/perl + +# Transform K&R C function definitions into ANSI equivalent. +# +# Author: Paul Marquess +# Version: 1.0 +# Date: 3 October 2006 + +# TODO +# +# Asumes no function pointer parameters. unless they are typedefed. +# Assumes no literal strings that look like function definitions +# Assumes functions start at the beginning of a line + +use strict; +use warnings; + +local $/; +$_ = <>; + +my $sp = qr{ \s* (?: /\* .*? \*/ )? \s* }x; # assume no nested comments + +my $d1 = qr{ $sp (?: [\w\*\s]+ $sp)* $sp \w+ $sp [\[\]\s]* $sp }x ; +my $decl = qr{ $sp (?: \w+ $sp )+ $d1 }xo ; +my $dList = qr{ $sp $decl (?: $sp , $d1 )* $sp ; $sp }xo ; + + +while (s/^ + ( # Start $1 + ( # Start $2 + .*? # Minimal eat content + ( ^ \w [\w\s\*]+ ) # $3 -- function name + \s* # optional whitespace + ) # $2 - Matched up to before parameter list + + \( \s* # Literal "(" + optional whitespace + ( [^\)]+ ) # $4 - one or more anythings except ")" + \s* \) # optional whitespace surrounding a Literal ")" + + ( (?: $dList )+ ) # $5 + + $sp ^ { # literal "{" at start of line + ) # Remember to $1 + //xsom + ) +{ + my $all = $1 ; + my $prefix = $2; + my $param_list = $4 ; + my $params = $5; + + StripComments($params); + StripComments($param_list); + $param_list =~ s/^\s+//; + $param_list =~ s/\s+$//; + + my $i = 0 ; + my %pList = map { $_ => $i++ } + split /\s*,\s*/, $param_list; + my $pMatch = '(\b' . join('|', keys %pList) . '\b)\W*$' ; + + my @params = split /\s*;\s*/, $params; + my @outParams = (); + foreach my $p (@params) + { + if ($p =~ /,/) + { + my @bits = split /\s*,\s*/, $p; + my $first = shift @bits; + $first =~ s/^\s*//; + push @outParams, $first; + $first =~ /^(\w+\s*)/; + my $type = $1 ; + push @outParams, map { $type . $_ } @bits; + } + else + { + $p =~ s/^\s+//; + push @outParams, $p; + } + } + + + my %tmp = map { /$pMatch/; $_ => $pList{$1} } + @outParams ; + + @outParams = map { " $_" } + sort { $tmp{$a} <=> $tmp{$b} } + @outParams ; + + print $prefix ; + print "(\n" . join(",\n", @outParams) . ")\n"; + print "{" ; + +} + +# Output any trailing code. +print ; +exit 0; + + +sub StripComments +{ + + no warnings; + + # Strip C & C++ coments + # From the perlfaq + $_[0] =~ + + s{ + /\* ## Start of /* ... */ comment + [^*]*\*+ ## Non-* followed by 1-or-more *'s + ( + [^/*][^*]*\*+ + )* ## 0-or-more things which don't start with / + ## but do end with '*' + / ## End of /* ... */ comment + + | ## OR C++ Comment + // ## Start of C++ comment // + [^\n]* ## followed by 0-or-more non end of line characters + + | ## OR various things which aren't comments: + + ( + " ## Start of " ... " string + ( + \\. ## Escaped char + | ## OR + [^"\\] ## Non "\ + )* + " ## End of " ... " string + + | ## OR + + ' ## Start of ' ... ' string + ( + \\. ## Escaped char + | ## OR + [^'\\] ## Non '\ + )* + ' ## End of ' ... ' string + + | ## OR + + . ## Anything other char + [^/"'\\]* ## Chars which doesn't start a comment, string or escape + ) + }{$2}gxs; + +} diff --git a/zlib/zutil.c b/zlib/zutil.c new file mode 100644 index 0000000..898ed34 --- /dev/null +++ b/zlib/zutil.c @@ -0,0 +1,318 @@ +/* zutil.c -- target dependent utility functions for the compression library + * Copyright (C) 1995-2005, 2010 Jean-loup Gailly. + * For conditions of distribution and use, see copyright notice in zlib.h + */ + +/* @(#) $Id$ */ + +#include "zutil.h" + +#ifndef NO_DUMMY_DECL +struct internal_state {int dummy;}; /* for buggy compilers */ +#endif + +const char * const z_errmsg[10] = { +"need dictionary", /* Z_NEED_DICT 2 */ +"stream end", /* Z_STREAM_END 1 */ +"", /* Z_OK 0 */ +"file error", /* Z_ERRNO (-1) */ +"stream error", /* Z_STREAM_ERROR (-2) */ +"data error", /* Z_DATA_ERROR (-3) */ +"insufficient memory", /* Z_MEM_ERROR (-4) */ +"buffer error", /* Z_BUF_ERROR (-5) */ +"incompatible version",/* Z_VERSION_ERROR (-6) */ +""}; + + +const char * ZEXPORT zlibVersion() +{ + return ZLIB_VERSION; +} + +uLong ZEXPORT zlibCompileFlags() +{ + uLong flags; + + flags = 0; + switch ((int)(sizeof(uInt))) { + case 2: break; + case 4: flags += 1; break; + case 8: flags += 2; break; + default: flags += 3; + } + switch ((int)(sizeof(uLong))) { + case 2: break; + case 4: flags += 1 << 2; break; + case 8: flags += 2 << 2; break; + default: flags += 3 << 2; + } + switch ((int)(sizeof(voidpf))) { + case 2: break; + case 4: flags += 1 << 4; break; + case 8: flags += 2 << 4; break; + default: flags += 3 << 4; + } + switch ((int)(sizeof(z_off_t))) { + case 2: break; + case 4: flags += 1 << 6; break; + case 8: flags += 2 << 6; break; + default: flags += 3 << 6; + } +#ifdef DEBUG + flags += 1 << 8; +#endif +#if defined(ASMV) || defined(ASMINF) + flags += 1 << 9; +#endif +#ifdef ZLIB_WINAPI + flags += 1 << 10; +#endif +#ifdef BUILDFIXED + flags += 1 << 12; +#endif +#ifdef DYNAMIC_CRC_TABLE + flags += 1 << 13; +#endif +#ifdef NO_GZCOMPRESS + flags += 1L << 16; +#endif +#ifdef NO_GZIP + flags += 1L << 17; +#endif +#ifdef PKZIP_BUG_WORKAROUND + flags += 1L << 20; +#endif +#ifdef FASTEST + flags += 1L << 21; +#endif +#ifdef STDC +# ifdef NO_vsnprintf + flags += 1L << 25; +# ifdef HAS_vsprintf_void + flags += 1L << 26; +# endif +# else +# ifdef HAS_vsnprintf_void + flags += 1L << 26; +# endif +# endif +#else + flags += 1L << 24; +# ifdef NO_snprintf + flags += 1L << 25; +# ifdef HAS_sprintf_void + flags += 1L << 26; +# endif +# else +# ifdef HAS_snprintf_void + flags += 1L << 26; +# endif +# endif +#endif + return flags; +} + +#ifdef DEBUG + +# ifndef verbose +# define verbose 0 +# endif +int ZLIB_INTERNAL z_verbose = verbose; + +void ZLIB_INTERNAL z_error (m) + char *m; +{ + fprintf(stderr, "%s\n", m); + exit(1); +} +#endif + +/* exported to allow conversion of error code to string for compress() and + * uncompress() + */ +const char * ZEXPORT zError(err) + int err; +{ + return ERR_MSG(err); +} + +#if defined(_WIN32_WCE) + /* The Microsoft C Run-Time Library for Windows CE doesn't have + * errno. We define it as a global variable to simplify porting. + * Its value is always 0 and should not be used. + */ + int errno = 0; +#endif + +#ifndef HAVE_MEMCPY + +void ZLIB_INTERNAL zmemcpy(dest, source, len) + Bytef* dest; + const Bytef* source; + uInt len; +{ + if (len == 0) return; + do { + *dest++ = *source++; /* ??? to be unrolled */ + } while (--len != 0); +} + +int ZLIB_INTERNAL zmemcmp(s1, s2, len) + const Bytef* s1; + const Bytef* s2; + uInt len; +{ + uInt j; + + for (j = 0; j < len; j++) { + if (s1[j] != s2[j]) return 2*(s1[j] > s2[j])-1; + } + return 0; +} + +void ZLIB_INTERNAL zmemzero(dest, len) + Bytef* dest; + uInt len; +{ + if (len == 0) return; + do { + *dest++ = 0; /* ??? to be unrolled */ + } while (--len != 0); +} +#endif + + +#ifdef SYS16BIT + +#ifdef __TURBOC__ +/* Turbo C in 16-bit mode */ + +# define MY_ZCALLOC + +/* Turbo C malloc() does not allow dynamic allocation of 64K bytes + * and farmalloc(64K) returns a pointer with an offset of 8, so we + * must fix the pointer. Warning: the pointer must be put back to its + * original form in order to free it, use zcfree(). + */ + +#define MAX_PTR 10 +/* 10*64K = 640K */ + +local int next_ptr = 0; + +typedef struct ptr_table_s { + voidpf org_ptr; + voidpf new_ptr; +} ptr_table; + +local ptr_table table[MAX_PTR]; +/* This table is used to remember the original form of pointers + * to large buffers (64K). Such pointers are normalized with a zero offset. + * Since MSDOS is not a preemptive multitasking OS, this table is not + * protected from concurrent access. This hack doesn't work anyway on + * a protected system like OS/2. Use Microsoft C instead. + */ + +voidpf ZLIB_INTERNAL zcalloc (voidpf opaque, unsigned items, unsigned size) +{ + voidpf buf = opaque; /* just to make some compilers happy */ + ulg bsize = (ulg)items*size; + + /* If we allocate less than 65520 bytes, we assume that farmalloc + * will return a usable pointer which doesn't have to be normalized. + */ + if (bsize < 65520L) { + buf = farmalloc(bsize); + if (*(ush*)&buf != 0) return buf; + } else { + buf = farmalloc(bsize + 16L); + } + if (buf == NULL || next_ptr >= MAX_PTR) return NULL; + table[next_ptr].org_ptr = buf; + + /* Normalize the pointer to seg:0 */ + *((ush*)&buf+1) += ((ush)((uch*)buf-0) + 15) >> 4; + *(ush*)&buf = 0; + table[next_ptr++].new_ptr = buf; + return buf; +} + +void ZLIB_INTERNAL zcfree (voidpf opaque, voidpf ptr) +{ + int n; + if (*(ush*)&ptr != 0) { /* object < 64K */ + farfree(ptr); + return; + } + /* Find the original pointer */ + for (n = 0; n < next_ptr; n++) { + if (ptr != table[n].new_ptr) continue; + + farfree(table[n].org_ptr); + while (++n < next_ptr) { + table[n-1] = table[n]; + } + next_ptr--; + return; + } + ptr = opaque; /* just to make some compilers happy */ + Assert(0, "zcfree: ptr not found"); +} + +#endif /* __TURBOC__ */ + + +#ifdef M_I86 +/* Microsoft C in 16-bit mode */ + +# define MY_ZCALLOC + +#if (!defined(_MSC_VER) || (_MSC_VER <= 600)) +# define _halloc halloc +# define _hfree hfree +#endif + +voidpf ZLIB_INTERNAL zcalloc (voidpf opaque, uInt items, uInt size) +{ + if (opaque) opaque = 0; /* to make compiler happy */ + return _halloc((long)items, size); +} + +void ZLIB_INTERNAL zcfree (voidpf opaque, voidpf ptr) +{ + if (opaque) opaque = 0; /* to make compiler happy */ + _hfree(ptr); +} + +#endif /* M_I86 */ + +#endif /* SYS16BIT */ + + +#ifndef MY_ZCALLOC /* Any system without a special alloc function */ + +#ifndef STDC +extern voidp malloc OF((uInt size)); +extern voidp calloc OF((uInt items, uInt size)); +extern void free OF((voidpf ptr)); +#endif + +voidpf ZLIB_INTERNAL zcalloc (opaque, items, size) + voidpf opaque; + unsigned items; + unsigned size; +{ + if (opaque) items += size - size; /* make compiler happy */ + return sizeof(uInt) > 2 ? (voidpf)malloc(items * size) : + (voidpf)calloc(items, size); +} + +void ZLIB_INTERNAL zcfree (opaque, ptr) + voidpf opaque; + voidpf ptr; +{ + free(ptr); + if (opaque) return; /* make compiler happy */ +} + +#endif /* MY_ZCALLOC */ diff --git a/zlib/zutil.h b/zlib/zutil.h new file mode 100644 index 0000000..9a682bb --- /dev/null +++ b/zlib/zutil.h @@ -0,0 +1,274 @@ +/* zutil.h -- internal interface and configuration of the compression library + * Copyright (C) 1995-2010 Jean-loup Gailly. + * For conditions of distribution and use, see copyright notice in zlib.h + */ + +/* WARNING: this file should *not* be used by applications. It is + part of the implementation of the compression library and is + subject to change. Applications should only use zlib.h. + */ + +/* @(#) $Id$ */ + +#ifndef ZUTIL_H +#define ZUTIL_H + +#if ((__GNUC__-0) * 10 + __GNUC_MINOR__-0 >= 33) && !defined(NO_VIZ) && !defined(__WIN32__) +# define ZLIB_INTERNAL __attribute__((visibility ("hidden"))) +#else +# define ZLIB_INTERNAL +#endif + +#include "zlib.h" + +#ifdef STDC +# if !(defined(_WIN32_WCE) && defined(_MSC_VER)) +# include +# endif +# include +# include +#endif + +#ifndef local +# define local static +#endif +/* compile with -Dlocal if your debugger can't find static symbols */ + +typedef unsigned char uch; +typedef uch FAR uchf; +typedef unsigned short ush; +typedef ush FAR ushf; +typedef unsigned long ulg; + +extern const char * const z_errmsg[10]; /* indexed by 2-zlib_error */ +/* (size given to avoid silly warnings with Visual C++) */ + +#define ERR_MSG(err) z_errmsg[Z_NEED_DICT-(err)] + +#define ERR_RETURN(strm,err) \ + return (strm->msg = (char*)ERR_MSG(err), (err)) +/* To be used only when the state is known to be valid */ + + /* common constants */ + +#ifndef DEF_WBITS +# define DEF_WBITS MAX_WBITS +#endif +/* default windowBits for decompression. MAX_WBITS is for compression only */ + +#if MAX_MEM_LEVEL >= 8 +# define DEF_MEM_LEVEL 8 +#else +# define DEF_MEM_LEVEL MAX_MEM_LEVEL +#endif +/* default memLevel */ + +#define STORED_BLOCK 0 +#define STATIC_TREES 1 +#define DYN_TREES 2 +/* The three kinds of block type */ + +#define MIN_MATCH 3 +#define MAX_MATCH 258 +/* The minimum and maximum match lengths */ + +#define PRESET_DICT 0x20 /* preset dictionary flag in zlib header */ + + /* target dependencies */ + +#if defined(MSDOS) || (defined(WINDOWS) && !defined(WIN32)) +# define OS_CODE 0x00 +# if defined(__TURBOC__) || defined(__BORLANDC__) +# if (__STDC__ == 1) && (defined(__LARGE__) || defined(__COMPACT__)) + /* Allow compilation with ANSI keywords only enabled */ + void _Cdecl farfree( void *block ); + void *_Cdecl farmalloc( unsigned long nbytes ); +# else +# include +# endif +# else /* MSC or DJGPP */ +# include +# endif +#endif + +#ifdef AMIGA +# define OS_CODE 0x01 +#endif + +#if defined(VAXC) || defined(VMS) +# define OS_CODE 0x02 +# define F_OPEN(name, mode) \ + fopen((name), (mode), "mbc=60", "ctx=stm", "rfm=fix", "mrs=512") +#endif + +#if defined(ATARI) || defined(atarist) +# define OS_CODE 0x05 +#endif + +#ifdef OS2 +# define OS_CODE 0x06 +# ifdef M_I86 +# include +# endif +#endif + +#if defined(MACOS) || defined(TARGET_OS_MAC) +# define OS_CODE 0x07 +# if defined(__MWERKS__) && __dest_os != __be_os && __dest_os != __win32_os +# include /* for fdopen */ +# else +# ifndef fdopen +# define fdopen(fd,mode) NULL /* No fdopen() */ +# endif +# endif +#endif + +#ifdef TOPS20 +# define OS_CODE 0x0a +#endif + +#ifdef WIN32 +# ifndef __CYGWIN__ /* Cygwin is Unix, not Win32 */ +# define OS_CODE 0x0b +# endif +#endif + +#ifdef __50SERIES /* Prime/PRIMOS */ +# define OS_CODE 0x0f +#endif + +#if defined(_BEOS_) || defined(RISCOS) +# define fdopen(fd,mode) NULL /* No fdopen() */ +#endif + +#if (defined(_MSC_VER) && (_MSC_VER > 600)) && !defined __INTERIX +# if defined(_WIN32_WCE) +# define fdopen(fd,mode) NULL /* No fdopen() */ +# ifndef _PTRDIFF_T_DEFINED + typedef int ptrdiff_t; +# define _PTRDIFF_T_DEFINED +# endif +# else +# define fdopen(fd,type) _fdopen(fd,type) +# endif +#endif + +#if defined(__BORLANDC__) + #pragma warn -8004 + #pragma warn -8008 + #pragma warn -8066 +#endif + +/* provide prototypes for these when building zlib without LFS */ +#if !defined(_LARGEFILE64_SOURCE) || _LFS64_LARGEFILE-0 == 0 + ZEXTERN uLong ZEXPORT adler32_combine64 OF((uLong, uLong, z_off_t)); + ZEXTERN uLong ZEXPORT crc32_combine64 OF((uLong, uLong, z_off_t)); +#endif + + /* common defaults */ + +#ifndef OS_CODE +# define OS_CODE 0x03 /* assume Unix */ +#endif + +#ifndef F_OPEN +# define F_OPEN(name, mode) fopen((name), (mode)) +#endif + + /* functions */ + +#if defined(STDC99) || (defined(__TURBOC__) && __TURBOC__ >= 0x550) +# ifndef HAVE_VSNPRINTF +# define HAVE_VSNPRINTF +# endif +#endif +#if defined(__CYGWIN__) +# ifndef HAVE_VSNPRINTF +# define HAVE_VSNPRINTF +# endif +#endif +#ifndef HAVE_VSNPRINTF +# ifdef MSDOS + /* vsnprintf may exist on some MS-DOS compilers (DJGPP?), + but for now we just assume it doesn't. */ +# define NO_vsnprintf +# endif +# ifdef __TURBOC__ +# define NO_vsnprintf +# endif +# ifdef WIN32 + /* In Win32, vsnprintf is available as the "non-ANSI" _vsnprintf. */ +# if !defined(vsnprintf) && !defined(NO_vsnprintf) +# if !defined(_MSC_VER) || ( defined(_MSC_VER) && _MSC_VER < 1500 ) +# define vsnprintf _vsnprintf +# endif +# endif +# endif +# ifdef __SASC +# define NO_vsnprintf +# endif +#endif +#ifdef VMS +# define NO_vsnprintf +#endif + +#if defined(pyr) +# define NO_MEMCPY +#endif +#if defined(SMALL_MEDIUM) && !defined(_MSC_VER) && !defined(__SC__) + /* Use our own functions for small and medium model with MSC <= 5.0. + * You may have to use the same strategy for Borland C (untested). + * The __SC__ check is for Symantec. + */ +# define NO_MEMCPY +#endif +#if defined(STDC) && !defined(HAVE_MEMCPY) && !defined(NO_MEMCPY) +# define HAVE_MEMCPY +#endif +#ifdef HAVE_MEMCPY +# ifdef SMALL_MEDIUM /* MSDOS small or medium model */ +# define zmemcpy _fmemcpy +# define zmemcmp _fmemcmp +# define zmemzero(dest, len) _fmemset(dest, 0, len) +# else +# define zmemcpy memcpy +# define zmemcmp memcmp +# define zmemzero(dest, len) memset(dest, 0, len) +# endif +#else + void ZLIB_INTERNAL zmemcpy OF((Bytef* dest, const Bytef* source, uInt len)); + int ZLIB_INTERNAL zmemcmp OF((const Bytef* s1, const Bytef* s2, uInt len)); + void ZLIB_INTERNAL zmemzero OF((Bytef* dest, uInt len)); +#endif + +/* Diagnostic functions */ +#ifdef DEBUG +# include + extern int ZLIB_INTERNAL z_verbose; + extern void ZLIB_INTERNAL z_error OF((char *m)); +# define Assert(cond,msg) {if(!(cond)) z_error(msg);} +# define Trace(x) {if (z_verbose>=0) fprintf x ;} +# define Tracev(x) {if (z_verbose>0) fprintf x ;} +# define Tracevv(x) {if (z_verbose>1) fprintf x ;} +# define Tracec(c,x) {if (z_verbose>0 && (c)) fprintf x ;} +# define Tracecv(c,x) {if (z_verbose>1 && (c)) fprintf x ;} +#else +# define Assert(cond,msg) +# define Trace(x) +# define Tracev(x) +# define Tracevv(x) +# define Tracec(c,x) +# define Tracecv(c,x) +#endif + + +voidpf ZLIB_INTERNAL zcalloc OF((voidpf opaque, unsigned items, + unsigned size)); +void ZLIB_INTERNAL zcfree OF((voidpf opaque, voidpf ptr)); + +#define ZALLOC(strm, items, size) \ + (*((strm)->zalloc))((strm)->opaque, (items), (size)) +#define ZFREE(strm, addr) (*((strm)->zfree))((strm)->opaque, (voidpf)(addr)) +#define TRY_FREE(s, p) {if (p) ZFREE(s, p);} + +#endif /* ZUTIL_H */ -- cgit v1.2.3